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Auto commit, 1 new patch{es}.
[thirdparty/grsecurity-scrape.git] / test / grsecurity-2.9.1-3.5.2-201208201522.patch
1 diff --git a/Documentation/dontdiff b/Documentation/dontdiff
2 index b4a898f..cd023f2 100644
3 --- a/Documentation/dontdiff
4 +++ b/Documentation/dontdiff
5 @@ -2,9 +2,11 @@
6 *.aux
7 *.bin
8 *.bz2
9 +*.c.[012]*.*
10 *.cis
11 *.cpio
12 *.csp
13 +*.dbg
14 *.dsp
15 *.dvi
16 *.elf
17 @@ -14,6 +16,7 @@
18 *.gcov
19 *.gen.S
20 *.gif
21 +*.gmo
22 *.grep
23 *.grp
24 *.gz
25 @@ -48,14 +51,17 @@
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 @@ -69,6 +75,7 @@ Image
45 Module.markers
46 Module.symvers
47 PENDING
48 +PERF*
49 SCCS
50 System.map*
51 TAGS
52 @@ -80,6 +87,7 @@ aic7*seq.h*
53 aicasm
54 aicdb.h*
55 altivec*.c
56 +ashldi3.S
57 asm-offsets.h
58 asm_offsets.h
59 autoconf.h*
60 @@ -92,19 +100,24 @@ bounds.h
61 bsetup
62 btfixupprep
63 build
64 +builtin-policy.h
65 bvmlinux
66 bzImage*
67 capability_names.h
68 capflags.c
69 classlist.h*
70 +clut_vga16.c
71 +common-cmds.h
72 comp*.log
73 compile.h*
74 conf
75 config
76 config-*
77 config_data.h*
78 +config.c
79 config.mak
80 config.mak.autogen
81 +config.tmp
82 conmakehash
83 consolemap_deftbl.c*
84 cpustr.h
85 @@ -115,9 +128,11 @@ devlist.h*
86 dnotify_test
87 docproc
88 dslm
89 +dtc-lexer.lex.c
90 elf2ecoff
91 elfconfig.h*
92 evergreen_reg_safe.h
93 +exception_policy.conf
94 fixdep
95 flask.h
96 fore200e_mkfirm
97 @@ -125,12 +140,15 @@ fore200e_pca_fw.c*
98 gconf
99 gconf.glade.h
100 gen-devlist
101 +gen-kdb_cmds.c
102 gen_crc32table
103 gen_init_cpio
104 generated
105 genheaders
106 genksyms
107 *_gray256.c
108 +hash
109 +hid-example
110 hpet_example
111 hugepage-mmap
112 hugepage-shm
113 @@ -145,7 +163,7 @@ int32.c
114 int4.c
115 int8.c
116 kallsyms
117 -kconfig
118 +kern_constants.h
119 keywords.c
120 ksym.c*
121 ksym.h*
122 @@ -153,7 +171,7 @@ kxgettext
123 lkc_defs.h
124 lex.c
125 lex.*.c
126 -linux
127 +lib1funcs.S
128 logo_*.c
129 logo_*_clut224.c
130 logo_*_mono.c
131 @@ -164,14 +182,15 @@ machtypes.h
132 map
133 map_hugetlb
134 maui_boot.h
135 -media
136 mconf
137 +mdp
138 miboot*
139 mk_elfconfig
140 mkboot
141 mkbugboot
142 mkcpustr
143 mkdep
144 +mkpiggy
145 mkprep
146 mkregtable
147 mktables
148 @@ -188,6 +207,8 @@ oui.c*
149 page-types
150 parse.c
151 parse.h
152 +parse-events*
153 +pasyms.h
154 patches*
155 pca200e.bin
156 pca200e_ecd.bin2
157 @@ -197,6 +218,7 @@ perf-archive
158 piggyback
159 piggy.gzip
160 piggy.S
161 +pmu-*
162 pnmtologo
163 ppc_defs.h*
164 pss_boot.h
165 @@ -206,7 +228,10 @@ r200_reg_safe.h
166 r300_reg_safe.h
167 r420_reg_safe.h
168 r600_reg_safe.h
169 +realmode.lds
170 +realmode.relocs
171 recordmcount
172 +regdb.c
173 relocs
174 rlim_names.h
175 rn50_reg_safe.h
176 @@ -216,8 +241,11 @@ series
177 setup
178 setup.bin
179 setup.elf
180 +size_overflow_hash.h
181 sImage
182 +slabinfo
183 sm_tbl*
184 +sortextable
185 split-include
186 syscalltab.h
187 tables.c
188 @@ -227,6 +255,7 @@ tftpboot.img
189 timeconst.h
190 times.h*
191 trix_boot.h
192 +user_constants.h
193 utsrelease.h*
194 vdso-syms.lds
195 vdso.lds
196 @@ -238,13 +267,17 @@ vdso32.lds
197 vdso32.so.dbg
198 vdso64.lds
199 vdso64.so.dbg
200 +vdsox32.lds
201 +vdsox32-syms.lds
202 version.h*
203 vmImage
204 vmlinux
205 vmlinux-*
206 vmlinux.aout
207 vmlinux.bin.all
208 +vmlinux.bin.bz2
209 vmlinux.lds
210 +vmlinux.relocs
211 vmlinuz
212 voffset.h
213 vsyscall.lds
214 @@ -252,9 +285,11 @@ vsyscall_32.lds
215 wanxlfw.inc
216 uImage
217 unifdef
218 +utsrelease.h
219 wakeup.bin
220 wakeup.elf
221 wakeup.lds
222 zImage*
223 zconf.hash.c
224 +zconf.lex.c
225 zoffset.h
226 diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
227 index a92c5eb..7530459 100644
228 --- a/Documentation/kernel-parameters.txt
229 +++ b/Documentation/kernel-parameters.txt
230 @@ -2051,6 +2051,13 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
231 the specified number of seconds. This is to be used if
232 your oopses keep scrolling off the screen.
233
234 + pax_nouderef [X86] disables UDEREF. Most likely needed under certain
235 + virtualization environments that don't cope well with the
236 + expand down segment used by UDEREF on X86-32 or the frequent
237 + page table updates on X86-64.
238 +
239 + pax_softmode= 0/1 to disable/enable PaX softmode on boot already.
240 +
241 pcbit= [HW,ISDN]
242
243 pcd. [PARIDE]
244 diff --git a/Documentation/sysctl/fs.txt b/Documentation/sysctl/fs.txt
245 index 13d6166..8c235b6 100644
246 --- a/Documentation/sysctl/fs.txt
247 +++ b/Documentation/sysctl/fs.txt
248 @@ -163,16 +163,22 @@ This value can be used to query and set the core dump mode for setuid
249 or otherwise protected/tainted binaries. The modes are
250
251 0 - (default) - traditional behaviour. Any process which has changed
252 - privilege levels or is execute only will not be dumped
253 + privilege levels or is execute only will not be dumped.
254 1 - (debug) - all processes dump core when possible. The core dump is
255 owned by the current user and no security is applied. This is
256 intended for system debugging situations only. Ptrace is unchecked.
257 + This is insecure as it allows regular users to examine the memory
258 + contents of privileged processes.
259 2 - (suidsafe) - any binary which normally would not be dumped is dumped
260 - readable by root only. This allows the end user to remove
261 - such a dump but not access it directly. For security reasons
262 - core dumps in this mode will not overwrite one another or
263 - other files. This mode is appropriate when administrators are
264 - attempting to debug problems in a normal environment.
265 + anyway, but only if the "core_pattern" kernel sysctl is set to
266 + either a pipe handler or a fully qualified path. (For more details
267 + on this limitation, see CVE-2006-2451.) This mode is appropriate
268 + when administrators are attempting to debug problems in a normal
269 + environment, and either have a core dump pipe handler that knows
270 + to treat privileged core dumps with care, or specific directory
271 + defined for catching core dumps. If a core dump happens without
272 + a pipe handler or fully qualifid path, a message will be emitted
273 + to syslog warning about the lack of a correct setting.
274
275 ==============================================================
276
277 diff --git a/Makefile b/Makefile
278 index 5caa2fa..5fc9329 100644
279 --- a/Makefile
280 +++ b/Makefile
281 @@ -241,8 +241,9 @@ CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
282
283 HOSTCC = gcc
284 HOSTCXX = g++
285 -HOSTCFLAGS = -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 -fomit-frame-pointer
286 -HOSTCXXFLAGS = -O2
287 +HOSTCFLAGS = -Wall -W -Wmissing-prototypes -Wstrict-prototypes -Wno-unused-parameter -Wno-missing-field-initializers -O2 -fomit-frame-pointer -fno-delete-null-pointer-checks
288 +HOSTCLFAGS += $(call cc-option, -Wno-empty-body)
289 +HOSTCXXFLAGS = -O2 -Wall -W -fno-delete-null-pointer-checks
290
291 # Decide whether to build built-in, modular, or both.
292 # Normally, just do built-in.
293 @@ -404,8 +405,8 @@ export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \
294 # Rules shared between *config targets and build targets
295
296 # Basic helpers built in scripts/
297 -PHONY += scripts_basic
298 -scripts_basic:
299 +PHONY += scripts_basic gcc-plugins
300 +scripts_basic: gcc-plugins
301 $(Q)$(MAKE) $(build)=scripts/basic
302 $(Q)rm -f .tmp_quiet_recordmcount
303
304 @@ -561,6 +562,60 @@ else
305 KBUILD_CFLAGS += -O2
306 endif
307
308 +ifndef DISABLE_PAX_PLUGINS
309 +PLUGINCC := $(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-plugin.sh "$(HOSTCC)" "$(HOSTCXX)" "$(CC)")
310 +ifneq ($(PLUGINCC),)
311 +ifndef DISABLE_PAX_CONSTIFY_PLUGIN
312 +ifndef CONFIG_UML
313 +CONSTIFY_PLUGIN_CFLAGS := -fplugin=$(objtree)/tools/gcc/constify_plugin.so -DCONSTIFY_PLUGIN
314 +endif
315 +endif
316 +ifdef CONFIG_PAX_MEMORY_STACKLEAK
317 +STACKLEAK_PLUGIN_CFLAGS := -fplugin=$(objtree)/tools/gcc/stackleak_plugin.so -DSTACKLEAK_PLUGIN
318 +STACKLEAK_PLUGIN_CFLAGS += -fplugin-arg-stackleak_plugin-track-lowest-sp=100
319 +endif
320 +ifdef CONFIG_KALLOCSTAT_PLUGIN
321 +KALLOCSTAT_PLUGIN_CFLAGS := -fplugin=$(objtree)/tools/gcc/kallocstat_plugin.so
322 +endif
323 +ifdef CONFIG_PAX_KERNEXEC_PLUGIN
324 +KERNEXEC_PLUGIN_CFLAGS := -fplugin=$(objtree)/tools/gcc/kernexec_plugin.so
325 +KERNEXEC_PLUGIN_CFLAGS += -fplugin-arg-kernexec_plugin-method=$(CONFIG_PAX_KERNEXEC_PLUGIN_METHOD) -DKERNEXEC_PLUGIN
326 +KERNEXEC_PLUGIN_AFLAGS := -DKERNEXEC_PLUGIN
327 +endif
328 +ifdef CONFIG_CHECKER_PLUGIN
329 +ifeq ($(call cc-ifversion, -ge, 0406, y), y)
330 +CHECKER_PLUGIN_CFLAGS := -fplugin=$(objtree)/tools/gcc/checker_plugin.so -DCHECKER_PLUGIN
331 +endif
332 +endif
333 +COLORIZE_PLUGIN_CFLAGS := -fplugin=$(objtree)/tools/gcc/colorize_plugin.so
334 +ifdef CONFIG_PAX_SIZE_OVERFLOW
335 +SIZE_OVERFLOW_PLUGIN_CFLAGS := -fplugin=$(objtree)/tools/gcc/size_overflow_plugin.so -DSIZE_OVERFLOW_PLUGIN
336 +endif
337 +ifdef CONFIG_PAX_LATENT_ENTROPY
338 +LATENT_ENTROPY_PLUGIN_CFLAGS := -fplugin=$(objtree)/tools/gcc/latent_entropy_plugin.so -DLATENT_ENTROPY_PLUGIN
339 +endif
340 +GCC_PLUGINS_CFLAGS := $(CONSTIFY_PLUGIN_CFLAGS) $(STACKLEAK_PLUGIN_CFLAGS) $(KALLOCSTAT_PLUGIN_CFLAGS)
341 +GCC_PLUGINS_CFLAGS += $(KERNEXEC_PLUGIN_CFLAGS) $(CHECKER_PLUGIN_CFLAGS) $(COLORIZE_PLUGIN_CFLAGS)
342 +GCC_PLUGINS_CFLAGS += $(SIZE_OVERFLOW_PLUGIN_CFLAGS) $(LATENT_ENTROPY_PLUGIN_CFLAGS)
343 +GCC_PLUGINS_AFLAGS := $(KERNEXEC_PLUGIN_AFLAGS)
344 +export PLUGINCC GCC_PLUGINS_CFLAGS GCC_PLUGINS_AFLAGS CONSTIFY_PLUGIN
345 +ifeq ($(KBUILD_EXTMOD),)
346 +gcc-plugins:
347 + $(Q)$(MAKE) $(build)=tools/gcc
348 +else
349 +gcc-plugins: ;
350 +endif
351 +else
352 +gcc-plugins:
353 +ifeq ($(call cc-ifversion, -ge, 0405, y), y)
354 + $(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.))
355 +else
356 + $(Q)echo "warning, your gcc version does not support plugins, you should upgrade it to gcc 4.5 at least"
357 +endif
358 + $(Q)echo "PAX_MEMORY_STACKLEAK and other features will be less secure"
359 +endif
360 +endif
361 +
362 include $(srctree)/arch/$(SRCARCH)/Makefile
363
364 ifdef CONFIG_READABLE_ASM
365 @@ -715,7 +770,7 @@ export mod_strip_cmd
366
367
368 ifeq ($(KBUILD_EXTMOD),)
369 -core-y += kernel/ mm/ fs/ ipc/ security/ crypto/ block/
370 +core-y += kernel/ mm/ fs/ ipc/ security/ crypto/ block/ grsecurity/
371
372 vmlinux-dirs := $(patsubst %/,%,$(filter %/, $(init-y) $(init-m) \
373 $(core-y) $(core-m) $(drivers-y) $(drivers-m) \
374 @@ -762,6 +817,8 @@ endif
375
376 # The actual objects are generated when descending,
377 # make sure no implicit rule kicks in
378 +$(filter-out $(init-y),$(vmlinux-deps)): KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS)
379 +$(filter-out $(init-y),$(vmlinux-deps)): KBUILD_AFLAGS += $(GCC_PLUGINS_AFLAGS)
380 $(sort $(vmlinux-deps)): $(vmlinux-dirs) ;
381
382 # Handle descending into subdirectories listed in $(vmlinux-dirs)
383 @@ -771,7 +828,7 @@ $(sort $(vmlinux-deps)): $(vmlinux-dirs) ;
384 # Error messages still appears in the original language
385
386 PHONY += $(vmlinux-dirs)
387 -$(vmlinux-dirs): prepare scripts
388 +$(vmlinux-dirs): gcc-plugins prepare scripts
389 $(Q)$(MAKE) $(build)=$@
390
391 # Store (new) KERNELRELASE string in include/config/kernel.release
392 @@ -815,6 +872,7 @@ prepare0: archprepare FORCE
393 $(Q)$(MAKE) $(build)=.
394
395 # All the preparing..
396 +prepare: KBUILD_CFLAGS := $(filter-out $(GCC_PLUGINS_CFLAGS),$(KBUILD_CFLAGS))
397 prepare: prepare0
398
399 # Generate some files
400 @@ -922,6 +980,8 @@ all: modules
401 # using awk while concatenating to the final file.
402
403 PHONY += modules
404 +modules: KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS)
405 +modules: KBUILD_AFLAGS += $(GCC_PLUGINS_AFLAGS)
406 modules: $(vmlinux-dirs) $(if $(KBUILD_BUILTIN),vmlinux) modules.builtin
407 $(Q)$(AWK) '!x[$$0]++' $(vmlinux-dirs:%=$(objtree)/%/modules.order) > $(objtree)/modules.order
408 @$(kecho) ' Building modules, stage 2.';
409 @@ -937,7 +997,7 @@ modules.builtin: $(vmlinux-dirs:%=%/modules.builtin)
410
411 # Target to prepare building external modules
412 PHONY += modules_prepare
413 -modules_prepare: prepare scripts
414 +modules_prepare: gcc-plugins prepare scripts
415
416 # Target to install modules
417 PHONY += modules_install
418 @@ -994,7 +1054,7 @@ CLEAN_DIRS += $(MODVERDIR)
419 MRPROPER_DIRS += include/config usr/include include/generated \
420 arch/*/include/generated
421 MRPROPER_FILES += .config .config.old .version .old_version \
422 - include/linux/version.h \
423 + include/linux/version.h tools/gcc/size_overflow_hash.h\
424 Module.symvers tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS
425
426 # clean - Delete most, but leave enough to build external modules
427 @@ -1032,6 +1092,7 @@ distclean: mrproper
428 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \
429 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
430 -o -name '.*.rej' \
431 + -o -name '.*.rej' -o -name '*.so' \
432 -o -name '*%' -o -name '.*.cmd' -o -name 'core' \) \
433 -type f -print | xargs rm -f
434
435 @@ -1192,6 +1253,8 @@ PHONY += $(module-dirs) modules
436 $(module-dirs): crmodverdir $(objtree)/Module.symvers
437 $(Q)$(MAKE) $(build)=$(patsubst _module_%,%,$@)
438
439 +modules: KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS)
440 +modules: KBUILD_AFLAGS += $(GCC_PLUGINS_AFLAGS)
441 modules: $(module-dirs)
442 @$(kecho) ' Building modules, stage 2.';
443 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
444 @@ -1326,17 +1389,21 @@ else
445 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))
446 endif
447
448 -%.s: %.c prepare scripts FORCE
449 +%.s: KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS)
450 +%.s: KBUILD_AFLAGS += $(GCC_PLUGINS_AFLAGS)
451 +%.s: %.c gcc-plugins prepare scripts FORCE
452 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
453 %.i: %.c prepare scripts FORCE
454 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
455 -%.o: %.c prepare scripts FORCE
456 +%.o: KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS)
457 +%.o: KBUILD_AFLAGS += $(GCC_PLUGINS_AFLAGS)
458 +%.o: %.c gcc-plugins prepare scripts FORCE
459 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
460 %.lst: %.c prepare scripts FORCE
461 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
462 -%.s: %.S prepare scripts FORCE
463 +%.s: %.S gcc-plugins prepare scripts FORCE
464 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
465 -%.o: %.S prepare scripts FORCE
466 +%.o: %.S gcc-plugins prepare scripts FORCE
467 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
468 %.symtypes: %.c prepare scripts FORCE
469 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
470 @@ -1346,11 +1413,15 @@ endif
471 $(cmd_crmodverdir)
472 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
473 $(build)=$(build-dir)
474 -%/: prepare scripts FORCE
475 +%/: KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS)
476 +%/: KBUILD_AFLAGS += $(GCC_PLUGINS_AFLAGS)
477 +%/: gcc-plugins prepare scripts FORCE
478 $(cmd_crmodverdir)
479 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
480 $(build)=$(build-dir)
481 -%.ko: prepare scripts FORCE
482 +%.ko: KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS)
483 +%.ko: KBUILD_AFLAGS += $(GCC_PLUGINS_AFLAGS)
484 +%.ko: gcc-plugins prepare scripts FORCE
485 $(cmd_crmodverdir)
486 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
487 $(build)=$(build-dir) $(@:.ko=.o)
488 diff --git a/arch/alpha/include/asm/atomic.h b/arch/alpha/include/asm/atomic.h
489 index 3bb7ffe..347a54c 100644
490 --- a/arch/alpha/include/asm/atomic.h
491 +++ b/arch/alpha/include/asm/atomic.h
492 @@ -250,6 +250,16 @@ static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u)
493 #define atomic_dec(v) atomic_sub(1,(v))
494 #define atomic64_dec(v) atomic64_sub(1,(v))
495
496 +#define atomic64_read_unchecked(v) atomic64_read(v)
497 +#define atomic64_set_unchecked(v, i) atomic64_set((v), (i))
498 +#define atomic64_add_unchecked(a, v) atomic64_add((a), (v))
499 +#define atomic64_add_return_unchecked(a, v) atomic64_add_return((a), (v))
500 +#define atomic64_sub_unchecked(a, v) atomic64_sub((a), (v))
501 +#define atomic64_inc_unchecked(v) atomic64_inc(v)
502 +#define atomic64_inc_return_unchecked(v) atomic64_inc_return(v)
503 +#define atomic64_dec_unchecked(v) atomic64_dec(v)
504 +#define atomic64_cmpxchg_unchecked(v, o, n) atomic64_cmpxchg((v), (o), (n))
505 +
506 #define smp_mb__before_atomic_dec() smp_mb()
507 #define smp_mb__after_atomic_dec() smp_mb()
508 #define smp_mb__before_atomic_inc() smp_mb()
509 diff --git a/arch/alpha/include/asm/cache.h b/arch/alpha/include/asm/cache.h
510 index ad368a9..fbe0f25 100644
511 --- a/arch/alpha/include/asm/cache.h
512 +++ b/arch/alpha/include/asm/cache.h
513 @@ -4,19 +4,19 @@
514 #ifndef __ARCH_ALPHA_CACHE_H
515 #define __ARCH_ALPHA_CACHE_H
516
517 +#include <linux/const.h>
518
519 /* Bytes per L1 (data) cache line. */
520 #if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_EV6)
521 -# define L1_CACHE_BYTES 64
522 # define L1_CACHE_SHIFT 6
523 #else
524 /* Both EV4 and EV5 are write-through, read-allocate,
525 direct-mapped, physical.
526 */
527 -# define L1_CACHE_BYTES 32
528 # define L1_CACHE_SHIFT 5
529 #endif
530
531 +#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
532 #define SMP_CACHE_BYTES L1_CACHE_BYTES
533
534 #endif
535 diff --git a/arch/alpha/include/asm/elf.h b/arch/alpha/include/asm/elf.h
536 index 968d999..d36b2df 100644
537 --- a/arch/alpha/include/asm/elf.h
538 +++ b/arch/alpha/include/asm/elf.h
539 @@ -91,6 +91,13 @@ typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
540
541 #define ELF_ET_DYN_BASE (TASK_UNMAPPED_BASE + 0x1000000)
542
543 +#ifdef CONFIG_PAX_ASLR
544 +#define PAX_ELF_ET_DYN_BASE (current->personality & ADDR_LIMIT_32BIT ? 0x10000 : 0x120000000UL)
545 +
546 +#define PAX_DELTA_MMAP_LEN (current->personality & ADDR_LIMIT_32BIT ? 14 : 28)
547 +#define PAX_DELTA_STACK_LEN (current->personality & ADDR_LIMIT_32BIT ? 14 : 19)
548 +#endif
549 +
550 /* $0 is set by ld.so to a pointer to a function which might be
551 registered using atexit. This provides a mean for the dynamic
552 linker to call DT_FINI functions for shared libraries that have
553 diff --git a/arch/alpha/include/asm/pgalloc.h b/arch/alpha/include/asm/pgalloc.h
554 index bc2a0da..8ad11ee 100644
555 --- a/arch/alpha/include/asm/pgalloc.h
556 +++ b/arch/alpha/include/asm/pgalloc.h
557 @@ -29,6 +29,12 @@ pgd_populate(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmd)
558 pgd_set(pgd, pmd);
559 }
560
561 +static inline void
562 +pgd_populate_kernel(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmd)
563 +{
564 + pgd_populate(mm, pgd, pmd);
565 +}
566 +
567 extern pgd_t *pgd_alloc(struct mm_struct *mm);
568
569 static inline void
570 diff --git a/arch/alpha/include/asm/pgtable.h b/arch/alpha/include/asm/pgtable.h
571 index 81a4342..348b927 100644
572 --- a/arch/alpha/include/asm/pgtable.h
573 +++ b/arch/alpha/include/asm/pgtable.h
574 @@ -102,6 +102,17 @@ struct vm_area_struct;
575 #define PAGE_SHARED __pgprot(_PAGE_VALID | __ACCESS_BITS)
576 #define PAGE_COPY __pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOW)
577 #define PAGE_READONLY __pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOW)
578 +
579 +#ifdef CONFIG_PAX_PAGEEXEC
580 +# define PAGE_SHARED_NOEXEC __pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOE)
581 +# define PAGE_COPY_NOEXEC __pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOW | _PAGE_FOE)
582 +# define PAGE_READONLY_NOEXEC __pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOW | _PAGE_FOE)
583 +#else
584 +# define PAGE_SHARED_NOEXEC PAGE_SHARED
585 +# define PAGE_COPY_NOEXEC PAGE_COPY
586 +# define PAGE_READONLY_NOEXEC PAGE_READONLY
587 +#endif
588 +
589 #define PAGE_KERNEL __pgprot(_PAGE_VALID | _PAGE_ASM | _PAGE_KRE | _PAGE_KWE)
590
591 #define _PAGE_NORMAL(x) __pgprot(_PAGE_VALID | __ACCESS_BITS | (x))
592 diff --git a/arch/alpha/kernel/module.c b/arch/alpha/kernel/module.c
593 index 2fd00b7..cfd5069 100644
594 --- a/arch/alpha/kernel/module.c
595 +++ b/arch/alpha/kernel/module.c
596 @@ -160,7 +160,7 @@ apply_relocate_add(Elf64_Shdr *sechdrs, const char *strtab,
597
598 /* The small sections were sorted to the end of the segment.
599 The following should definitely cover them. */
600 - gp = (u64)me->module_core + me->core_size - 0x8000;
601 + gp = (u64)me->module_core_rw + me->core_size_rw - 0x8000;
602 got = sechdrs[me->arch.gotsecindex].sh_addr;
603
604 for (i = 0; i < n; i++) {
605 diff --git a/arch/alpha/kernel/osf_sys.c b/arch/alpha/kernel/osf_sys.c
606 index 98a1036..fb54ccf 100644
607 --- a/arch/alpha/kernel/osf_sys.c
608 +++ b/arch/alpha/kernel/osf_sys.c
609 @@ -1312,7 +1312,7 @@ arch_get_unmapped_area_1(unsigned long addr, unsigned long len,
610 /* At this point: (!vma || addr < vma->vm_end). */
611 if (limit - len < addr)
612 return -ENOMEM;
613 - if (!vma || addr + len <= vma->vm_start)
614 + if (check_heap_stack_gap(vma, addr, len))
615 return addr;
616 addr = vma->vm_end;
617 vma = vma->vm_next;
618 @@ -1348,6 +1348,10 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
619 merely specific addresses, but regions of memory -- perhaps
620 this feature should be incorporated into all ports? */
621
622 +#ifdef CONFIG_PAX_RANDMMAP
623 + if (!(current->mm->pax_flags & MF_PAX_RANDMMAP))
624 +#endif
625 +
626 if (addr) {
627 addr = arch_get_unmapped_area_1 (PAGE_ALIGN(addr), len, limit);
628 if (addr != (unsigned long) -ENOMEM)
629 @@ -1355,8 +1359,8 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
630 }
631
632 /* Next, try allocating at TASK_UNMAPPED_BASE. */
633 - addr = arch_get_unmapped_area_1 (PAGE_ALIGN(TASK_UNMAPPED_BASE),
634 - len, limit);
635 + addr = arch_get_unmapped_area_1 (PAGE_ALIGN(current->mm->mmap_base), len, limit);
636 +
637 if (addr != (unsigned long) -ENOMEM)
638 return addr;
639
640 diff --git a/arch/alpha/mm/fault.c b/arch/alpha/mm/fault.c
641 index 5eecab1..609abc0 100644
642 --- a/arch/alpha/mm/fault.c
643 +++ b/arch/alpha/mm/fault.c
644 @@ -53,6 +53,124 @@ __load_new_mm_context(struct mm_struct *next_mm)
645 __reload_thread(pcb);
646 }
647
648 +#ifdef CONFIG_PAX_PAGEEXEC
649 +/*
650 + * PaX: decide what to do with offenders (regs->pc = fault address)
651 + *
652 + * returns 1 when task should be killed
653 + * 2 when patched PLT trampoline was detected
654 + * 3 when unpatched PLT trampoline was detected
655 + */
656 +static int pax_handle_fetch_fault(struct pt_regs *regs)
657 +{
658 +
659 +#ifdef CONFIG_PAX_EMUPLT
660 + int err;
661 +
662 + do { /* PaX: patched PLT emulation #1 */
663 + unsigned int ldah, ldq, jmp;
664 +
665 + err = get_user(ldah, (unsigned int *)regs->pc);
666 + err |= get_user(ldq, (unsigned int *)(regs->pc+4));
667 + err |= get_user(jmp, (unsigned int *)(regs->pc+8));
668 +
669 + if (err)
670 + break;
671 +
672 + if ((ldah & 0xFFFF0000U) == 0x277B0000U &&
673 + (ldq & 0xFFFF0000U) == 0xA77B0000U &&
674 + jmp == 0x6BFB0000U)
675 + {
676 + unsigned long r27, addr;
677 + unsigned long addrh = (ldah | 0xFFFFFFFFFFFF0000UL) << 16;
678 + unsigned long addrl = ldq | 0xFFFFFFFFFFFF0000UL;
679 +
680 + addr = regs->r27 + ((addrh ^ 0x80000000UL) + 0x80000000UL) + ((addrl ^ 0x8000UL) + 0x8000UL);
681 + err = get_user(r27, (unsigned long *)addr);
682 + if (err)
683 + break;
684 +
685 + regs->r27 = r27;
686 + regs->pc = r27;
687 + return 2;
688 + }
689 + } while (0);
690 +
691 + do { /* PaX: patched PLT emulation #2 */
692 + unsigned int ldah, lda, br;
693 +
694 + err = get_user(ldah, (unsigned int *)regs->pc);
695 + err |= get_user(lda, (unsigned int *)(regs->pc+4));
696 + err |= get_user(br, (unsigned int *)(regs->pc+8));
697 +
698 + if (err)
699 + break;
700 +
701 + if ((ldah & 0xFFFF0000U) == 0x277B0000U &&
702 + (lda & 0xFFFF0000U) == 0xA77B0000U &&
703 + (br & 0xFFE00000U) == 0xC3E00000U)
704 + {
705 + unsigned long addr = br | 0xFFFFFFFFFFE00000UL;
706 + unsigned long addrh = (ldah | 0xFFFFFFFFFFFF0000UL) << 16;
707 + unsigned long addrl = lda | 0xFFFFFFFFFFFF0000UL;
708 +
709 + regs->r27 += ((addrh ^ 0x80000000UL) + 0x80000000UL) + ((addrl ^ 0x8000UL) + 0x8000UL);
710 + regs->pc += 12 + (((addr ^ 0x00100000UL) + 0x00100000UL) << 2);
711 + return 2;
712 + }
713 + } while (0);
714 +
715 + do { /* PaX: unpatched PLT emulation */
716 + unsigned int br;
717 +
718 + err = get_user(br, (unsigned int *)regs->pc);
719 +
720 + if (!err && (br & 0xFFE00000U) == 0xC3800000U) {
721 + unsigned int br2, ldq, nop, jmp;
722 + unsigned long addr = br | 0xFFFFFFFFFFE00000UL, resolver;
723 +
724 + addr = regs->pc + 4 + (((addr ^ 0x00100000UL) + 0x00100000UL) << 2);
725 + err = get_user(br2, (unsigned int *)addr);
726 + err |= get_user(ldq, (unsigned int *)(addr+4));
727 + err |= get_user(nop, (unsigned int *)(addr+8));
728 + err |= get_user(jmp, (unsigned int *)(addr+12));
729 + err |= get_user(resolver, (unsigned long *)(addr+16));
730 +
731 + if (err)
732 + break;
733 +
734 + if (br2 == 0xC3600000U &&
735 + ldq == 0xA77B000CU &&
736 + nop == 0x47FF041FU &&
737 + jmp == 0x6B7B0000U)
738 + {
739 + regs->r28 = regs->pc+4;
740 + regs->r27 = addr+16;
741 + regs->pc = resolver;
742 + return 3;
743 + }
744 + }
745 + } while (0);
746 +#endif
747 +
748 + return 1;
749 +}
750 +
751 +void pax_report_insns(struct pt_regs *regs, void *pc, void *sp)
752 +{
753 + unsigned long i;
754 +
755 + printk(KERN_ERR "PAX: bytes at PC: ");
756 + for (i = 0; i < 5; i++) {
757 + unsigned int c;
758 + if (get_user(c, (unsigned int *)pc+i))
759 + printk(KERN_CONT "???????? ");
760 + else
761 + printk(KERN_CONT "%08x ", c);
762 + }
763 + printk("\n");
764 +}
765 +#endif
766
767 /*
768 * This routine handles page faults. It determines the address,
769 @@ -130,8 +248,29 @@ do_page_fault(unsigned long address, unsigned long mmcsr,
770 good_area:
771 si_code = SEGV_ACCERR;
772 if (cause < 0) {
773 - if (!(vma->vm_flags & VM_EXEC))
774 + if (!(vma->vm_flags & VM_EXEC)) {
775 +
776 +#ifdef CONFIG_PAX_PAGEEXEC
777 + if (!(mm->pax_flags & MF_PAX_PAGEEXEC) || address != regs->pc)
778 + goto bad_area;
779 +
780 + up_read(&mm->mmap_sem);
781 + switch (pax_handle_fetch_fault(regs)) {
782 +
783 +#ifdef CONFIG_PAX_EMUPLT
784 + case 2:
785 + case 3:
786 + return;
787 +#endif
788 +
789 + }
790 + pax_report_fault(regs, (void *)regs->pc, (void *)rdusp());
791 + do_group_exit(SIGKILL);
792 +#else
793 goto bad_area;
794 +#endif
795 +
796 + }
797 } else if (!cause) {
798 /* Allow reads even for write-only mappings */
799 if (!(vma->vm_flags & (VM_READ | VM_WRITE)))
800 diff --git a/arch/arm/include/asm/atomic.h b/arch/arm/include/asm/atomic.h
801 index c79f61f..9ac0642 100644
802 --- a/arch/arm/include/asm/atomic.h
803 +++ b/arch/arm/include/asm/atomic.h
804 @@ -17,17 +17,35 @@
805 #include <asm/barrier.h>
806 #include <asm/cmpxchg.h>
807
808 +#ifdef CONFIG_GENERIC_ATOMIC64
809 +#include <asm-generic/atomic64.h>
810 +#endif
811 +
812 #define ATOMIC_INIT(i) { (i) }
813
814 #ifdef __KERNEL__
815
816 +#define _ASM_EXTABLE(from, to) \
817 +" .pushsection __ex_table,\"a\"\n"\
818 +" .align 3\n" \
819 +" .long " #from ", " #to"\n" \
820 +" .popsection"
821 +
822 /*
823 * On ARM, ordinary assignment (str instruction) doesn't clear the local
824 * strex/ldrex monitor on some implementations. The reason we can use it for
825 * atomic_set() is the clrex or dummy strex done on every exception return.
826 */
827 #define atomic_read(v) (*(volatile int *)&(v)->counter)
828 +static inline int atomic_read_unchecked(const atomic_unchecked_t *v)
829 +{
830 + return v->counter;
831 +}
832 #define atomic_set(v,i) (((v)->counter) = (i))
833 +static inline void atomic_set_unchecked(atomic_unchecked_t *v, int i)
834 +{
835 + v->counter = i;
836 +}
837
838 #if __LINUX_ARM_ARCH__ >= 6
839
840 @@ -42,6 +60,35 @@ static inline void atomic_add(int i, atomic_t *v)
841 int result;
842
843 __asm__ __volatile__("@ atomic_add\n"
844 +"1: ldrex %1, [%3]\n"
845 +" adds %0, %1, %4\n"
846 +
847 +#ifdef CONFIG_PAX_REFCOUNT
848 +" bvc 3f\n"
849 +"2: bkpt 0xf103\n"
850 +"3:\n"
851 +#endif
852 +
853 +" strex %1, %0, [%3]\n"
854 +" teq %1, #0\n"
855 +" bne 1b"
856 +
857 +#ifdef CONFIG_PAX_REFCOUNT
858 +"\n4:\n"
859 + _ASM_EXTABLE(2b, 4b)
860 +#endif
861 +
862 + : "=&r" (result), "=&r" (tmp), "+Qo" (v->counter)
863 + : "r" (&v->counter), "Ir" (i)
864 + : "cc");
865 +}
866 +
867 +static inline void atomic_add_unchecked(int i, atomic_unchecked_t *v)
868 +{
869 + unsigned long tmp;
870 + int result;
871 +
872 + __asm__ __volatile__("@ atomic_add_unchecked\n"
873 "1: ldrex %0, [%3]\n"
874 " add %0, %0, %4\n"
875 " strex %1, %0, [%3]\n"
876 @@ -60,6 +107,42 @@ static inline int atomic_add_return(int i, atomic_t *v)
877 smp_mb();
878
879 __asm__ __volatile__("@ atomic_add_return\n"
880 +"1: ldrex %1, [%3]\n"
881 +" adds %0, %1, %4\n"
882 +
883 +#ifdef CONFIG_PAX_REFCOUNT
884 +" bvc 3f\n"
885 +" mov %0, %1\n"
886 +"2: bkpt 0xf103\n"
887 +"3:\n"
888 +#endif
889 +
890 +" strex %1, %0, [%3]\n"
891 +" teq %1, #0\n"
892 +" bne 1b"
893 +
894 +#ifdef CONFIG_PAX_REFCOUNT
895 +"\n4:\n"
896 + _ASM_EXTABLE(2b, 4b)
897 +#endif
898 +
899 + : "=&r" (result), "=&r" (tmp), "+Qo" (v->counter)
900 + : "r" (&v->counter), "Ir" (i)
901 + : "cc");
902 +
903 + smp_mb();
904 +
905 + return result;
906 +}
907 +
908 +static inline int atomic_add_return_unchecked(int i, atomic_unchecked_t *v)
909 +{
910 + unsigned long tmp;
911 + int result;
912 +
913 + smp_mb();
914 +
915 + __asm__ __volatile__("@ atomic_add_return_unchecked\n"
916 "1: ldrex %0, [%3]\n"
917 " add %0, %0, %4\n"
918 " strex %1, %0, [%3]\n"
919 @@ -80,6 +163,35 @@ static inline void atomic_sub(int i, atomic_t *v)
920 int result;
921
922 __asm__ __volatile__("@ atomic_sub\n"
923 +"1: ldrex %1, [%3]\n"
924 +" subs %0, %1, %4\n"
925 +
926 +#ifdef CONFIG_PAX_REFCOUNT
927 +" bvc 3f\n"
928 +"2: bkpt 0xf103\n"
929 +"3:\n"
930 +#endif
931 +
932 +" strex %1, %0, [%3]\n"
933 +" teq %1, #0\n"
934 +" bne 1b"
935 +
936 +#ifdef CONFIG_PAX_REFCOUNT
937 +"\n4:\n"
938 + _ASM_EXTABLE(2b, 4b)
939 +#endif
940 +
941 + : "=&r" (result), "=&r" (tmp), "+Qo" (v->counter)
942 + : "r" (&v->counter), "Ir" (i)
943 + : "cc");
944 +}
945 +
946 +static inline void atomic_sub_unchecked(int i, atomic_unchecked_t *v)
947 +{
948 + unsigned long tmp;
949 + int result;
950 +
951 + __asm__ __volatile__("@ atomic_sub_unchecked\n"
952 "1: ldrex %0, [%3]\n"
953 " sub %0, %0, %4\n"
954 " strex %1, %0, [%3]\n"
955 @@ -98,11 +210,25 @@ static inline int atomic_sub_return(int i, atomic_t *v)
956 smp_mb();
957
958 __asm__ __volatile__("@ atomic_sub_return\n"
959 -"1: ldrex %0, [%3]\n"
960 -" sub %0, %0, %4\n"
961 +"1: ldrex %1, [%3]\n"
962 +" subs %0, %1, %4\n"
963 +
964 +#ifdef CONFIG_PAX_REFCOUNT
965 +" bvc 3f\n"
966 +" mov %0, %1\n"
967 +"2: bkpt 0xf103\n"
968 +"3:\n"
969 +#endif
970 +
971 " strex %1, %0, [%3]\n"
972 " teq %1, #0\n"
973 " bne 1b"
974 +
975 +#ifdef CONFIG_PAX_REFCOUNT
976 +"\n4:\n"
977 + _ASM_EXTABLE(2b, 4b)
978 +#endif
979 +
980 : "=&r" (result), "=&r" (tmp), "+Qo" (v->counter)
981 : "r" (&v->counter), "Ir" (i)
982 : "cc");
983 @@ -134,6 +260,28 @@ static inline int atomic_cmpxchg(atomic_t *ptr, int old, int new)
984 return oldval;
985 }
986
987 +static inline int atomic_cmpxchg_unchecked(atomic_unchecked_t *ptr, int old, int new)
988 +{
989 + unsigned long oldval, res;
990 +
991 + smp_mb();
992 +
993 + do {
994 + __asm__ __volatile__("@ atomic_cmpxchg_unchecked\n"
995 + "ldrex %1, [%3]\n"
996 + "mov %0, #0\n"
997 + "teq %1, %4\n"
998 + "strexeq %0, %5, [%3]\n"
999 + : "=&r" (res), "=&r" (oldval), "+Qo" (ptr->counter)
1000 + : "r" (&ptr->counter), "Ir" (old), "r" (new)
1001 + : "cc");
1002 + } while (res);
1003 +
1004 + smp_mb();
1005 +
1006 + return oldval;
1007 +}
1008 +
1009 static inline void atomic_clear_mask(unsigned long mask, unsigned long *addr)
1010 {
1011 unsigned long tmp, tmp2;
1012 @@ -167,7 +315,17 @@ static inline int atomic_add_return(int i, atomic_t *v)
1013
1014 return val;
1015 }
1016 +
1017 +static inline int atomic_add_return_unchecked(int i, atomic_unchecked_t *v)
1018 +{
1019 + return atomic_add_return(i, v);
1020 +}
1021 +
1022 #define atomic_add(i, v) (void) atomic_add_return(i, v)
1023 +static inline void atomic_add_unchecked(int i, atomic_unchecked_t *v)
1024 +{
1025 + (void) atomic_add_return(i, v);
1026 +}
1027
1028 static inline int atomic_sub_return(int i, atomic_t *v)
1029 {
1030 @@ -182,6 +340,10 @@ static inline int atomic_sub_return(int i, atomic_t *v)
1031 return val;
1032 }
1033 #define atomic_sub(i, v) (void) atomic_sub_return(i, v)
1034 +static inline void atomic_sub_unchecked(int i, atomic_unchecked_t *v)
1035 +{
1036 + (void) atomic_sub_return(i, v);
1037 +}
1038
1039 static inline int atomic_cmpxchg(atomic_t *v, int old, int new)
1040 {
1041 @@ -197,6 +359,11 @@ static inline int atomic_cmpxchg(atomic_t *v, int old, int new)
1042 return ret;
1043 }
1044
1045 +static inline int atomic_cmpxchg_unchecked(atomic_unchecked_t *v, int old, int new)
1046 +{
1047 + return atomic_cmpxchg(v, old, new);
1048 +}
1049 +
1050 static inline void atomic_clear_mask(unsigned long mask, unsigned long *addr)
1051 {
1052 unsigned long flags;
1053 @@ -209,6 +376,10 @@ static inline void atomic_clear_mask(unsigned long mask, unsigned long *addr)
1054 #endif /* __LINUX_ARM_ARCH__ */
1055
1056 #define atomic_xchg(v, new) (xchg(&((v)->counter), new))
1057 +static inline int atomic_xchg_unchecked(atomic_unchecked_t *v, int new)
1058 +{
1059 + return xchg(&v->counter, new);
1060 +}
1061
1062 static inline int __atomic_add_unless(atomic_t *v, int a, int u)
1063 {
1064 @@ -221,11 +392,27 @@ static inline int __atomic_add_unless(atomic_t *v, int a, int u)
1065 }
1066
1067 #define atomic_inc(v) atomic_add(1, v)
1068 +static inline void atomic_inc_unchecked(atomic_unchecked_t *v)
1069 +{
1070 + atomic_add_unchecked(1, v);
1071 +}
1072 #define atomic_dec(v) atomic_sub(1, v)
1073 +static inline void atomic_dec_unchecked(atomic_unchecked_t *v)
1074 +{
1075 + atomic_sub_unchecked(1, v);
1076 +}
1077
1078 #define atomic_inc_and_test(v) (atomic_add_return(1, v) == 0)
1079 +static inline int atomic_inc_and_test_unchecked(atomic_unchecked_t *v)
1080 +{
1081 + return atomic_add_return_unchecked(1, v) == 0;
1082 +}
1083 #define atomic_dec_and_test(v) (atomic_sub_return(1, v) == 0)
1084 #define atomic_inc_return(v) (atomic_add_return(1, v))
1085 +static inline int atomic_inc_return_unchecked(atomic_unchecked_t *v)
1086 +{
1087 + return atomic_add_return_unchecked(1, v);
1088 +}
1089 #define atomic_dec_return(v) (atomic_sub_return(1, v))
1090 #define atomic_sub_and_test(i, v) (atomic_sub_return(i, v) == 0)
1091
1092 @@ -241,6 +428,14 @@ typedef struct {
1093 u64 __aligned(8) counter;
1094 } atomic64_t;
1095
1096 +#ifdef CONFIG_PAX_REFCOUNT
1097 +typedef struct {
1098 + u64 __aligned(8) counter;
1099 +} atomic64_unchecked_t;
1100 +#else
1101 +typedef atomic64_t atomic64_unchecked_t;
1102 +#endif
1103 +
1104 #define ATOMIC64_INIT(i) { (i) }
1105
1106 static inline u64 atomic64_read(const atomic64_t *v)
1107 @@ -256,6 +451,19 @@ static inline u64 atomic64_read(const atomic64_t *v)
1108 return result;
1109 }
1110
1111 +static inline u64 atomic64_read_unchecked(atomic64_unchecked_t *v)
1112 +{
1113 + u64 result;
1114 +
1115 + __asm__ __volatile__("@ atomic64_read_unchecked\n"
1116 +" ldrexd %0, %H0, [%1]"
1117 + : "=&r" (result)
1118 + : "r" (&v->counter), "Qo" (v->counter)
1119 + );
1120 +
1121 + return result;
1122 +}
1123 +
1124 static inline void atomic64_set(atomic64_t *v, u64 i)
1125 {
1126 u64 tmp;
1127 @@ -270,6 +478,20 @@ static inline void atomic64_set(atomic64_t *v, u64 i)
1128 : "cc");
1129 }
1130
1131 +static inline void atomic64_set_unchecked(atomic64_unchecked_t *v, u64 i)
1132 +{
1133 + u64 tmp;
1134 +
1135 + __asm__ __volatile__("@ atomic64_set_unchecked\n"
1136 +"1: ldrexd %0, %H0, [%2]\n"
1137 +" strexd %0, %3, %H3, [%2]\n"
1138 +" teq %0, #0\n"
1139 +" bne 1b"
1140 + : "=&r" (tmp), "=Qo" (v->counter)
1141 + : "r" (&v->counter), "r" (i)
1142 + : "cc");
1143 +}
1144 +
1145 static inline void atomic64_add(u64 i, atomic64_t *v)
1146 {
1147 u64 result;
1148 @@ -278,6 +500,36 @@ static inline void atomic64_add(u64 i, atomic64_t *v)
1149 __asm__ __volatile__("@ atomic64_add\n"
1150 "1: ldrexd %0, %H0, [%3]\n"
1151 " adds %0, %0, %4\n"
1152 +" adcs %H0, %H0, %H4\n"
1153 +
1154 +#ifdef CONFIG_PAX_REFCOUNT
1155 +" bvc 3f\n"
1156 +"2: bkpt 0xf103\n"
1157 +"3:\n"
1158 +#endif
1159 +
1160 +" strexd %1, %0, %H0, [%3]\n"
1161 +" teq %1, #0\n"
1162 +" bne 1b"
1163 +
1164 +#ifdef CONFIG_PAX_REFCOUNT
1165 +"\n4:\n"
1166 + _ASM_EXTABLE(2b, 4b)
1167 +#endif
1168 +
1169 + : "=&r" (result), "=&r" (tmp), "+Qo" (v->counter)
1170 + : "r" (&v->counter), "r" (i)
1171 + : "cc");
1172 +}
1173 +
1174 +static inline void atomic64_add_unchecked(u64 i, atomic64_unchecked_t *v)
1175 +{
1176 + u64 result;
1177 + unsigned long tmp;
1178 +
1179 + __asm__ __volatile__("@ atomic64_add_unchecked\n"
1180 +"1: ldrexd %0, %H0, [%3]\n"
1181 +" adds %0, %0, %4\n"
1182 " adc %H0, %H0, %H4\n"
1183 " strexd %1, %0, %H0, [%3]\n"
1184 " teq %1, #0\n"
1185 @@ -289,12 +541,49 @@ static inline void atomic64_add(u64 i, atomic64_t *v)
1186
1187 static inline u64 atomic64_add_return(u64 i, atomic64_t *v)
1188 {
1189 - u64 result;
1190 - unsigned long tmp;
1191 + u64 result, tmp;
1192
1193 smp_mb();
1194
1195 __asm__ __volatile__("@ atomic64_add_return\n"
1196 +"1: ldrexd %1, %H1, [%3]\n"
1197 +" adds %0, %1, %4\n"
1198 +" adcs %H0, %H1, %H4\n"
1199 +
1200 +#ifdef CONFIG_PAX_REFCOUNT
1201 +" bvc 3f\n"
1202 +" mov %0, %1\n"
1203 +" mov %H0, %H1\n"
1204 +"2: bkpt 0xf103\n"
1205 +"3:\n"
1206 +#endif
1207 +
1208 +" strexd %1, %0, %H0, [%3]\n"
1209 +" teq %1, #0\n"
1210 +" bne 1b"
1211 +
1212 +#ifdef CONFIG_PAX_REFCOUNT
1213 +"\n4:\n"
1214 + _ASM_EXTABLE(2b, 4b)
1215 +#endif
1216 +
1217 + : "=&r" (result), "=&r" (tmp), "+Qo" (v->counter)
1218 + : "r" (&v->counter), "r" (i)
1219 + : "cc");
1220 +
1221 + smp_mb();
1222 +
1223 + return result;
1224 +}
1225 +
1226 +static inline u64 atomic64_add_return_unchecked(u64 i, atomic64_unchecked_t *v)
1227 +{
1228 + u64 result;
1229 + unsigned long tmp;
1230 +
1231 + smp_mb();
1232 +
1233 + __asm__ __volatile__("@ atomic64_add_return_unchecked\n"
1234 "1: ldrexd %0, %H0, [%3]\n"
1235 " adds %0, %0, %4\n"
1236 " adc %H0, %H0, %H4\n"
1237 @@ -318,6 +607,36 @@ static inline void atomic64_sub(u64 i, atomic64_t *v)
1238 __asm__ __volatile__("@ atomic64_sub\n"
1239 "1: ldrexd %0, %H0, [%3]\n"
1240 " subs %0, %0, %4\n"
1241 +" sbcs %H0, %H0, %H4\n"
1242 +
1243 +#ifdef CONFIG_PAX_REFCOUNT
1244 +" bvc 3f\n"
1245 +"2: bkpt 0xf103\n"
1246 +"3:\n"
1247 +#endif
1248 +
1249 +" strexd %1, %0, %H0, [%3]\n"
1250 +" teq %1, #0\n"
1251 +" bne 1b"
1252 +
1253 +#ifdef CONFIG_PAX_REFCOUNT
1254 +"\n4:\n"
1255 + _ASM_EXTABLE(2b, 4b)
1256 +#endif
1257 +
1258 + : "=&r" (result), "=&r" (tmp), "+Qo" (v->counter)
1259 + : "r" (&v->counter), "r" (i)
1260 + : "cc");
1261 +}
1262 +
1263 +static inline void atomic64_sub_unchecked(u64 i, atomic64_unchecked_t *v)
1264 +{
1265 + u64 result;
1266 + unsigned long tmp;
1267 +
1268 + __asm__ __volatile__("@ atomic64_sub_unchecked\n"
1269 +"1: ldrexd %0, %H0, [%3]\n"
1270 +" subs %0, %0, %4\n"
1271 " sbc %H0, %H0, %H4\n"
1272 " strexd %1, %0, %H0, [%3]\n"
1273 " teq %1, #0\n"
1274 @@ -329,18 +648,32 @@ static inline void atomic64_sub(u64 i, atomic64_t *v)
1275
1276 static inline u64 atomic64_sub_return(u64 i, atomic64_t *v)
1277 {
1278 - u64 result;
1279 - unsigned long tmp;
1280 + u64 result, tmp;
1281
1282 smp_mb();
1283
1284 __asm__ __volatile__("@ atomic64_sub_return\n"
1285 -"1: ldrexd %0, %H0, [%3]\n"
1286 -" subs %0, %0, %4\n"
1287 -" sbc %H0, %H0, %H4\n"
1288 +"1: ldrexd %1, %H1, [%3]\n"
1289 +" subs %0, %1, %4\n"
1290 +" sbcs %H0, %H1, %H4\n"
1291 +
1292 +#ifdef CONFIG_PAX_REFCOUNT
1293 +" bvc 3f\n"
1294 +" mov %0, %1\n"
1295 +" mov %H0, %H1\n"
1296 +"2: bkpt 0xf103\n"
1297 +"3:\n"
1298 +#endif
1299 +
1300 " strexd %1, %0, %H0, [%3]\n"
1301 " teq %1, #0\n"
1302 " bne 1b"
1303 +
1304 +#ifdef CONFIG_PAX_REFCOUNT
1305 +"\n4:\n"
1306 + _ASM_EXTABLE(2b, 4b)
1307 +#endif
1308 +
1309 : "=&r" (result), "=&r" (tmp), "+Qo" (v->counter)
1310 : "r" (&v->counter), "r" (i)
1311 : "cc");
1312 @@ -374,6 +707,30 @@ static inline u64 atomic64_cmpxchg(atomic64_t *ptr, u64 old, u64 new)
1313 return oldval;
1314 }
1315
1316 +static inline u64 atomic64_cmpxchg_unchecked(atomic64_unchecked_t *ptr, u64 old, u64 new)
1317 +{
1318 + u64 oldval;
1319 + unsigned long res;
1320 +
1321 + smp_mb();
1322 +
1323 + do {
1324 + __asm__ __volatile__("@ atomic64_cmpxchg_unchecked\n"
1325 + "ldrexd %1, %H1, [%3]\n"
1326 + "mov %0, #0\n"
1327 + "teq %1, %4\n"
1328 + "teqeq %H1, %H4\n"
1329 + "strexdeq %0, %5, %H5, [%3]"
1330 + : "=&r" (res), "=&r" (oldval), "+Qo" (ptr->counter)
1331 + : "r" (&ptr->counter), "r" (old), "r" (new)
1332 + : "cc");
1333 + } while (res);
1334 +
1335 + smp_mb();
1336 +
1337 + return oldval;
1338 +}
1339 +
1340 static inline u64 atomic64_xchg(atomic64_t *ptr, u64 new)
1341 {
1342 u64 result;
1343 @@ -397,21 +754,34 @@ static inline u64 atomic64_xchg(atomic64_t *ptr, u64 new)
1344
1345 static inline u64 atomic64_dec_if_positive(atomic64_t *v)
1346 {
1347 - u64 result;
1348 - unsigned long tmp;
1349 + u64 result, tmp;
1350
1351 smp_mb();
1352
1353 __asm__ __volatile__("@ atomic64_dec_if_positive\n"
1354 -"1: ldrexd %0, %H0, [%3]\n"
1355 -" subs %0, %0, #1\n"
1356 -" sbc %H0, %H0, #0\n"
1357 +"1: ldrexd %1, %H1, [%3]\n"
1358 +" subs %0, %1, #1\n"
1359 +" sbcs %H0, %H1, #0\n"
1360 +
1361 +#ifdef CONFIG_PAX_REFCOUNT
1362 +" bvc 3f\n"
1363 +" mov %0, %1\n"
1364 +" mov %H0, %H1\n"
1365 +"2: bkpt 0xf103\n"
1366 +"3:\n"
1367 +#endif
1368 +
1369 " teq %H0, #0\n"
1370 -" bmi 2f\n"
1371 +" bmi 4f\n"
1372 " strexd %1, %0, %H0, [%3]\n"
1373 " teq %1, #0\n"
1374 " bne 1b\n"
1375 -"2:"
1376 +"4:\n"
1377 +
1378 +#ifdef CONFIG_PAX_REFCOUNT
1379 + _ASM_EXTABLE(2b, 4b)
1380 +#endif
1381 +
1382 : "=&r" (result), "=&r" (tmp), "+Qo" (v->counter)
1383 : "r" (&v->counter)
1384 : "cc");
1385 @@ -434,13 +804,25 @@ static inline int atomic64_add_unless(atomic64_t *v, u64 a, u64 u)
1386 " teq %0, %5\n"
1387 " teqeq %H0, %H5\n"
1388 " moveq %1, #0\n"
1389 -" beq 2f\n"
1390 +" beq 4f\n"
1391 " adds %0, %0, %6\n"
1392 -" adc %H0, %H0, %H6\n"
1393 +" adcs %H0, %H0, %H6\n"
1394 +
1395 +#ifdef CONFIG_PAX_REFCOUNT
1396 +" bvc 3f\n"
1397 +"2: bkpt 0xf103\n"
1398 +"3:\n"
1399 +#endif
1400 +
1401 " strexd %2, %0, %H0, [%4]\n"
1402 " teq %2, #0\n"
1403 " bne 1b\n"
1404 -"2:"
1405 +"4:\n"
1406 +
1407 +#ifdef CONFIG_PAX_REFCOUNT
1408 + _ASM_EXTABLE(2b, 4b)
1409 +#endif
1410 +
1411 : "=&r" (val), "+r" (ret), "=&r" (tmp), "+Qo" (v->counter)
1412 : "r" (&v->counter), "r" (u), "r" (a)
1413 : "cc");
1414 @@ -453,10 +835,13 @@ static inline int atomic64_add_unless(atomic64_t *v, u64 a, u64 u)
1415
1416 #define atomic64_add_negative(a, v) (atomic64_add_return((a), (v)) < 0)
1417 #define atomic64_inc(v) atomic64_add(1LL, (v))
1418 +#define atomic64_inc_unchecked(v) atomic64_add_unchecked(1LL, (v))
1419 #define atomic64_inc_return(v) atomic64_add_return(1LL, (v))
1420 +#define atomic64_inc_return_unchecked(v) atomic64_add_return_unchecked(1LL, (v))
1421 #define atomic64_inc_and_test(v) (atomic64_inc_return(v) == 0)
1422 #define atomic64_sub_and_test(a, v) (atomic64_sub_return((a), (v)) == 0)
1423 #define atomic64_dec(v) atomic64_sub(1LL, (v))
1424 +#define atomic64_dec_unchecked(v) atomic64_sub_unchecked(1LL, (v))
1425 #define atomic64_dec_return(v) atomic64_sub_return(1LL, (v))
1426 #define atomic64_dec_and_test(v) (atomic64_dec_return((v)) == 0)
1427 #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1LL, 0LL)
1428 diff --git a/arch/arm/include/asm/cache.h b/arch/arm/include/asm/cache.h
1429 index 75fe66b..2255c86 100644
1430 --- a/arch/arm/include/asm/cache.h
1431 +++ b/arch/arm/include/asm/cache.h
1432 @@ -4,8 +4,10 @@
1433 #ifndef __ASMARM_CACHE_H
1434 #define __ASMARM_CACHE_H
1435
1436 +#include <linux/const.h>
1437 +
1438 #define L1_CACHE_SHIFT CONFIG_ARM_L1_CACHE_SHIFT
1439 -#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
1440 +#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
1441
1442 /*
1443 * Memory returned by kmalloc() may be used for DMA, so we must make
1444 diff --git a/arch/arm/include/asm/cacheflush.h b/arch/arm/include/asm/cacheflush.h
1445 index e4448e1..7bc86b7 100644
1446 --- a/arch/arm/include/asm/cacheflush.h
1447 +++ b/arch/arm/include/asm/cacheflush.h
1448 @@ -108,7 +108,7 @@ struct cpu_cache_fns {
1449 void (*dma_unmap_area)(const void *, size_t, int);
1450
1451 void (*dma_flush_range)(const void *, const void *);
1452 -};
1453 +} __no_const;
1454
1455 /*
1456 * Select the calling method
1457 diff --git a/arch/arm/include/asm/cmpxchg.h b/arch/arm/include/asm/cmpxchg.h
1458 index 7eb18c1..e38b6d2 100644
1459 --- a/arch/arm/include/asm/cmpxchg.h
1460 +++ b/arch/arm/include/asm/cmpxchg.h
1461 @@ -102,6 +102,8 @@ static inline unsigned long __xchg(unsigned long x, volatile void *ptr, int size
1462
1463 #define xchg(ptr,x) \
1464 ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr))))
1465 +#define xchg_unchecked(ptr,x) \
1466 + ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr))))
1467
1468 #include <asm-generic/cmpxchg-local.h>
1469
1470 diff --git a/arch/arm/include/asm/elf.h b/arch/arm/include/asm/elf.h
1471 index 38050b1..9d90e8b 100644
1472 --- a/arch/arm/include/asm/elf.h
1473 +++ b/arch/arm/include/asm/elf.h
1474 @@ -116,7 +116,14 @@ int dump_task_regs(struct task_struct *t, elf_gregset_t *elfregs);
1475 the loader. We need to make sure that it is out of the way of the program
1476 that it will "exec", and that there is sufficient room for the brk. */
1477
1478 -#define ELF_ET_DYN_BASE (2 * TASK_SIZE / 3)
1479 +#define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2)
1480 +
1481 +#ifdef CONFIG_PAX_ASLR
1482 +#define PAX_ELF_ET_DYN_BASE 0x00008000UL
1483 +
1484 +#define PAX_DELTA_MMAP_LEN ((current->personality == PER_LINUX_32BIT) ? 16 : 10)
1485 +#define PAX_DELTA_STACK_LEN ((current->personality == PER_LINUX_32BIT) ? 16 : 10)
1486 +#endif
1487
1488 /* When the program starts, a1 contains a pointer to a function to be
1489 registered with atexit, as per the SVR4 ABI. A value of 0 means we
1490 @@ -126,8 +133,4 @@ int dump_task_regs(struct task_struct *t, elf_gregset_t *elfregs);
1491 extern void elf_set_personality(const struct elf32_hdr *);
1492 #define SET_PERSONALITY(ex) elf_set_personality(&(ex))
1493
1494 -struct mm_struct;
1495 -extern unsigned long arch_randomize_brk(struct mm_struct *mm);
1496 -#define arch_randomize_brk arch_randomize_brk
1497 -
1498 #endif
1499 diff --git a/arch/arm/include/asm/kmap_types.h b/arch/arm/include/asm/kmap_types.h
1500 index e51b1e8..32a3113 100644
1501 --- a/arch/arm/include/asm/kmap_types.h
1502 +++ b/arch/arm/include/asm/kmap_types.h
1503 @@ -21,6 +21,7 @@ enum km_type {
1504 KM_L1_CACHE,
1505 KM_L2_CACHE,
1506 KM_KDB,
1507 + KM_CLEARPAGE,
1508 KM_TYPE_NR
1509 };
1510
1511 diff --git a/arch/arm/include/asm/outercache.h b/arch/arm/include/asm/outercache.h
1512 index 53426c6..c7baff3 100644
1513 --- a/arch/arm/include/asm/outercache.h
1514 +++ b/arch/arm/include/asm/outercache.h
1515 @@ -35,7 +35,7 @@ struct outer_cache_fns {
1516 #endif
1517 void (*set_debug)(unsigned long);
1518 void (*resume)(void);
1519 -};
1520 +} __no_const;
1521
1522 #ifdef CONFIG_OUTER_CACHE
1523
1524 diff --git a/arch/arm/include/asm/page.h b/arch/arm/include/asm/page.h
1525 index ecf9019..b71d9a1 100644
1526 --- a/arch/arm/include/asm/page.h
1527 +++ b/arch/arm/include/asm/page.h
1528 @@ -114,7 +114,7 @@ struct cpu_user_fns {
1529 void (*cpu_clear_user_highpage)(struct page *page, unsigned long vaddr);
1530 void (*cpu_copy_user_highpage)(struct page *to, struct page *from,
1531 unsigned long vaddr, struct vm_area_struct *vma);
1532 -};
1533 +} __no_const;
1534
1535 #ifdef MULTI_USER
1536 extern struct cpu_user_fns cpu_user;
1537 diff --git a/arch/arm/include/asm/pgalloc.h b/arch/arm/include/asm/pgalloc.h
1538 index 943504f..bf8d667 100644
1539 --- a/arch/arm/include/asm/pgalloc.h
1540 +++ b/arch/arm/include/asm/pgalloc.h
1541 @@ -43,6 +43,11 @@ static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
1542 set_pud(pud, __pud(__pa(pmd) | PMD_TYPE_TABLE));
1543 }
1544
1545 +static inline void pud_populate_kernel(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
1546 +{
1547 + pud_populate(mm, pud, pmd);
1548 +}
1549 +
1550 #else /* !CONFIG_ARM_LPAE */
1551
1552 /*
1553 @@ -51,6 +56,7 @@ static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
1554 #define pmd_alloc_one(mm,addr) ({ BUG(); ((pmd_t *)2); })
1555 #define pmd_free(mm, pmd) do { } while (0)
1556 #define pud_populate(mm,pmd,pte) BUG()
1557 +#define pud_populate_kernel(mm,pmd,pte) BUG()
1558
1559 #endif /* CONFIG_ARM_LPAE */
1560
1561 diff --git a/arch/arm/include/asm/thread_info.h b/arch/arm/include/asm/thread_info.h
1562 index af7b0bd..6750a8c 100644
1563 --- a/arch/arm/include/asm/thread_info.h
1564 +++ b/arch/arm/include/asm/thread_info.h
1565 @@ -148,6 +148,12 @@ extern int vfp_restore_user_hwstate(struct user_vfp __user *,
1566 #define TIF_NOTIFY_RESUME 2 /* callback before returning to user */
1567 #define TIF_SYSCALL_TRACE 8
1568 #define TIF_SYSCALL_AUDIT 9
1569 +
1570 +/* within 8 bits of TIF_SYSCALL_TRACE
1571 + to meet flexible second operand requirements
1572 +*/
1573 +#define TIF_GRSEC_SETXID 10
1574 +
1575 #define TIF_POLLING_NRFLAG 16
1576 #define TIF_USING_IWMMXT 17
1577 #define TIF_MEMDIE 18 /* is terminating due to OOM killer */
1578 @@ -163,9 +169,11 @@ extern int vfp_restore_user_hwstate(struct user_vfp __user *,
1579 #define _TIF_POLLING_NRFLAG (1 << TIF_POLLING_NRFLAG)
1580 #define _TIF_USING_IWMMXT (1 << TIF_USING_IWMMXT)
1581 #define _TIF_SECCOMP (1 << TIF_SECCOMP)
1582 +#define _TIF_GRSEC_SETXID (1 << TIF_GRSEC_SETXID)
1583
1584 /* Checks for any syscall work in entry-common.S */
1585 -#define _TIF_SYSCALL_WORK (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT)
1586 +#define _TIF_SYSCALL_WORK (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | \
1587 + _TIF_GRSEC_SETXID)
1588
1589 /*
1590 * Change these and you break ASM code in entry-common.S
1591 diff --git a/arch/arm/include/asm/uaccess.h b/arch/arm/include/asm/uaccess.h
1592 index 71f6536..602f279 100644
1593 --- a/arch/arm/include/asm/uaccess.h
1594 +++ b/arch/arm/include/asm/uaccess.h
1595 @@ -22,6 +22,8 @@
1596 #define VERIFY_READ 0
1597 #define VERIFY_WRITE 1
1598
1599 +extern void check_object_size(const void *ptr, unsigned long n, bool to);
1600 +
1601 /*
1602 * The exception table consists of pairs of addresses: the first is the
1603 * address of an instruction that is allowed to fault, and the second is
1604 @@ -387,8 +389,23 @@ do { \
1605
1606
1607 #ifdef CONFIG_MMU
1608 -extern unsigned long __must_check __copy_from_user(void *to, const void __user *from, unsigned long n);
1609 -extern unsigned long __must_check __copy_to_user(void __user *to, const void *from, unsigned long n);
1610 +extern unsigned long __must_check ___copy_from_user(void *to, const void __user *from, unsigned long n);
1611 +extern unsigned long __must_check ___copy_to_user(void __user *to, const void *from, unsigned long n);
1612 +
1613 +static inline unsigned long __must_check __copy_from_user(void *to, const void __user *from, unsigned long n)
1614 +{
1615 + if (!__builtin_constant_p(n))
1616 + check_object_size(to, n, false);
1617 + return ___copy_from_user(to, from, n);
1618 +}
1619 +
1620 +static inline unsigned long __must_check __copy_to_user(void __user *to, const void *from, unsigned long n)
1621 +{
1622 + if (!__builtin_constant_p(n))
1623 + check_object_size(from, n, true);
1624 + return ___copy_to_user(to, from, n);
1625 +}
1626 +
1627 extern unsigned long __must_check __copy_to_user_std(void __user *to, const void *from, unsigned long n);
1628 extern unsigned long __must_check __clear_user(void __user *addr, unsigned long n);
1629 extern unsigned long __must_check __clear_user_std(void __user *addr, unsigned long n);
1630 @@ -403,6 +420,9 @@ extern unsigned long __must_check __strnlen_user(const char __user *s, long n);
1631
1632 static inline unsigned long __must_check copy_from_user(void *to, const void __user *from, unsigned long n)
1633 {
1634 + if ((long)n < 0)
1635 + return n;
1636 +
1637 if (access_ok(VERIFY_READ, from, n))
1638 n = __copy_from_user(to, from, n);
1639 else /* security hole - plug it */
1640 @@ -412,6 +432,9 @@ static inline unsigned long __must_check copy_from_user(void *to, const void __u
1641
1642 static inline unsigned long __must_check copy_to_user(void __user *to, const void *from, unsigned long n)
1643 {
1644 + if ((long)n < 0)
1645 + return n;
1646 +
1647 if (access_ok(VERIFY_WRITE, to, n))
1648 n = __copy_to_user(to, from, n);
1649 return n;
1650 diff --git a/arch/arm/kernel/armksyms.c b/arch/arm/kernel/armksyms.c
1651 index b57c75e..ed2d6b2 100644
1652 --- a/arch/arm/kernel/armksyms.c
1653 +++ b/arch/arm/kernel/armksyms.c
1654 @@ -94,8 +94,8 @@ EXPORT_SYMBOL(__strncpy_from_user);
1655 #ifdef CONFIG_MMU
1656 EXPORT_SYMBOL(copy_page);
1657
1658 -EXPORT_SYMBOL(__copy_from_user);
1659 -EXPORT_SYMBOL(__copy_to_user);
1660 +EXPORT_SYMBOL(___copy_from_user);
1661 +EXPORT_SYMBOL(___copy_to_user);
1662 EXPORT_SYMBOL(__clear_user);
1663
1664 EXPORT_SYMBOL(__get_user_1);
1665 diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
1666 index 693b744..e684262 100644
1667 --- a/arch/arm/kernel/process.c
1668 +++ b/arch/arm/kernel/process.c
1669 @@ -28,7 +28,6 @@
1670 #include <linux/tick.h>
1671 #include <linux/utsname.h>
1672 #include <linux/uaccess.h>
1673 -#include <linux/random.h>
1674 #include <linux/hw_breakpoint.h>
1675 #include <linux/cpuidle.h>
1676
1677 @@ -256,9 +255,10 @@ void machine_power_off(void)
1678 machine_shutdown();
1679 if (pm_power_off)
1680 pm_power_off();
1681 + BUG();
1682 }
1683
1684 -void machine_restart(char *cmd)
1685 +__noreturn void machine_restart(char *cmd)
1686 {
1687 machine_shutdown();
1688
1689 @@ -501,12 +501,6 @@ unsigned long get_wchan(struct task_struct *p)
1690 return 0;
1691 }
1692
1693 -unsigned long arch_randomize_brk(struct mm_struct *mm)
1694 -{
1695 - unsigned long range_end = mm->brk + 0x02000000;
1696 - return randomize_range(mm->brk, range_end, 0) ? : mm->brk;
1697 -}
1698 -
1699 #ifdef CONFIG_MMU
1700 /*
1701 * The vectors page is always readable from user space for the
1702 diff --git a/arch/arm/kernel/ptrace.c b/arch/arm/kernel/ptrace.c
1703 index 14e3826..d832d89 100644
1704 --- a/arch/arm/kernel/ptrace.c
1705 +++ b/arch/arm/kernel/ptrace.c
1706 @@ -907,10 +907,19 @@ long arch_ptrace(struct task_struct *child, long request,
1707 return ret;
1708 }
1709
1710 +#ifdef CONFIG_GRKERNSEC_SETXID
1711 +extern void gr_delayed_cred_worker(void);
1712 +#endif
1713 +
1714 asmlinkage int syscall_trace(int why, struct pt_regs *regs, int scno)
1715 {
1716 unsigned long ip;
1717
1718 +#ifdef CONFIG_GRKERNSEC_SETXID
1719 + if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID)))
1720 + gr_delayed_cred_worker();
1721 +#endif
1722 +
1723 if (why)
1724 audit_syscall_exit(regs);
1725 else
1726 diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
1727 index e15d83b..8c466dd 100644
1728 --- a/arch/arm/kernel/setup.c
1729 +++ b/arch/arm/kernel/setup.c
1730 @@ -112,13 +112,13 @@ struct processor processor __read_mostly;
1731 struct cpu_tlb_fns cpu_tlb __read_mostly;
1732 #endif
1733 #ifdef MULTI_USER
1734 -struct cpu_user_fns cpu_user __read_mostly;
1735 +struct cpu_user_fns cpu_user __read_only;
1736 #endif
1737 #ifdef MULTI_CACHE
1738 -struct cpu_cache_fns cpu_cache __read_mostly;
1739 +struct cpu_cache_fns cpu_cache __read_only;
1740 #endif
1741 #ifdef CONFIG_OUTER_CACHE
1742 -struct outer_cache_fns outer_cache __read_mostly;
1743 +struct outer_cache_fns outer_cache __read_only;
1744 EXPORT_SYMBOL(outer_cache);
1745 #endif
1746
1747 diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c
1748 index c7cae6b..e1e523c 100644
1749 --- a/arch/arm/kernel/traps.c
1750 +++ b/arch/arm/kernel/traps.c
1751 @@ -264,6 +264,8 @@ static int __die(const char *str, int err, struct thread_info *thread, struct pt
1752
1753 static DEFINE_RAW_SPINLOCK(die_lock);
1754
1755 +extern void gr_handle_kernel_exploit(void);
1756 +
1757 /*
1758 * This function is protected against re-entrancy.
1759 */
1760 @@ -296,6 +298,9 @@ void die(const char *str, struct pt_regs *regs, int err)
1761 panic("Fatal exception in interrupt");
1762 if (panic_on_oops)
1763 panic("Fatal exception");
1764 +
1765 + gr_handle_kernel_exploit();
1766 +
1767 if (ret != NOTIFY_STOP)
1768 do_exit(SIGSEGV);
1769 }
1770 diff --git a/arch/arm/lib/copy_from_user.S b/arch/arm/lib/copy_from_user.S
1771 index 66a477a..bee61d3 100644
1772 --- a/arch/arm/lib/copy_from_user.S
1773 +++ b/arch/arm/lib/copy_from_user.S
1774 @@ -16,7 +16,7 @@
1775 /*
1776 * Prototype:
1777 *
1778 - * size_t __copy_from_user(void *to, const void *from, size_t n)
1779 + * size_t ___copy_from_user(void *to, const void *from, size_t n)
1780 *
1781 * Purpose:
1782 *
1783 @@ -84,11 +84,11 @@
1784
1785 .text
1786
1787 -ENTRY(__copy_from_user)
1788 +ENTRY(___copy_from_user)
1789
1790 #include "copy_template.S"
1791
1792 -ENDPROC(__copy_from_user)
1793 +ENDPROC(___copy_from_user)
1794
1795 .pushsection .fixup,"ax"
1796 .align 0
1797 diff --git a/arch/arm/lib/copy_page.S b/arch/arm/lib/copy_page.S
1798 index 6ee2f67..d1cce76 100644
1799 --- a/arch/arm/lib/copy_page.S
1800 +++ b/arch/arm/lib/copy_page.S
1801 @@ -10,6 +10,7 @@
1802 * ASM optimised string functions
1803 */
1804 #include <linux/linkage.h>
1805 +#include <linux/const.h>
1806 #include <asm/assembler.h>
1807 #include <asm/asm-offsets.h>
1808 #include <asm/cache.h>
1809 diff --git a/arch/arm/lib/copy_to_user.S b/arch/arm/lib/copy_to_user.S
1810 index d066df6..df28194 100644
1811 --- a/arch/arm/lib/copy_to_user.S
1812 +++ b/arch/arm/lib/copy_to_user.S
1813 @@ -16,7 +16,7 @@
1814 /*
1815 * Prototype:
1816 *
1817 - * size_t __copy_to_user(void *to, const void *from, size_t n)
1818 + * size_t ___copy_to_user(void *to, const void *from, size_t n)
1819 *
1820 * Purpose:
1821 *
1822 @@ -88,11 +88,11 @@
1823 .text
1824
1825 ENTRY(__copy_to_user_std)
1826 -WEAK(__copy_to_user)
1827 +WEAK(___copy_to_user)
1828
1829 #include "copy_template.S"
1830
1831 -ENDPROC(__copy_to_user)
1832 +ENDPROC(___copy_to_user)
1833 ENDPROC(__copy_to_user_std)
1834
1835 .pushsection .fixup,"ax"
1836 diff --git a/arch/arm/lib/uaccess_with_memcpy.c b/arch/arm/lib/uaccess_with_memcpy.c
1837 index 025f742..8432b08 100644
1838 --- a/arch/arm/lib/uaccess_with_memcpy.c
1839 +++ b/arch/arm/lib/uaccess_with_memcpy.c
1840 @@ -104,7 +104,7 @@ out:
1841 }
1842
1843 unsigned long
1844 -__copy_to_user(void __user *to, const void *from, unsigned long n)
1845 +___copy_to_user(void __user *to, const void *from, unsigned long n)
1846 {
1847 /*
1848 * This test is stubbed out of the main function above to keep
1849 diff --git a/arch/arm/mach-kirkwood/common.c b/arch/arm/mach-kirkwood/common.c
1850 index f261cd2..4ae63fb 100644
1851 --- a/arch/arm/mach-kirkwood/common.c
1852 +++ b/arch/arm/mach-kirkwood/common.c
1853 @@ -128,7 +128,7 @@ static void clk_gate_fn_disable(struct clk_hw *hw)
1854 clk_gate_ops.disable(hw);
1855 }
1856
1857 -static struct clk_ops clk_gate_fn_ops;
1858 +static clk_ops_no_const clk_gate_fn_ops;
1859
1860 static struct clk __init *clk_register_gate_fn(struct device *dev,
1861 const char *name,
1862 diff --git a/arch/arm/mach-omap2/board-n8x0.c b/arch/arm/mach-omap2/board-n8x0.c
1863 index 2c5d0ed..7d9099c 100644
1864 --- a/arch/arm/mach-omap2/board-n8x0.c
1865 +++ b/arch/arm/mach-omap2/board-n8x0.c
1866 @@ -594,7 +594,7 @@ static int n8x0_menelaus_late_init(struct device *dev)
1867 }
1868 #endif
1869
1870 -static struct menelaus_platform_data n8x0_menelaus_platform_data __initdata = {
1871 +static struct menelaus_platform_data n8x0_menelaus_platform_data __initconst = {
1872 .late_init = n8x0_menelaus_late_init,
1873 };
1874
1875 diff --git a/arch/arm/mm/fault.c b/arch/arm/mm/fault.c
1876 index c3bd834..e81ef02 100644
1877 --- a/arch/arm/mm/fault.c
1878 +++ b/arch/arm/mm/fault.c
1879 @@ -174,6 +174,13 @@ __do_user_fault(struct task_struct *tsk, unsigned long addr,
1880 }
1881 #endif
1882
1883 +#ifdef CONFIG_PAX_PAGEEXEC
1884 + if (fsr & FSR_LNX_PF) {
1885 + pax_report_fault(regs, (void *)regs->ARM_pc, (void *)regs->ARM_sp);
1886 + do_group_exit(SIGKILL);
1887 + }
1888 +#endif
1889 +
1890 tsk->thread.address = addr;
1891 tsk->thread.error_code = fsr;
1892 tsk->thread.trap_no = 14;
1893 @@ -397,6 +404,33 @@ do_page_fault(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
1894 }
1895 #endif /* CONFIG_MMU */
1896
1897 +#ifdef CONFIG_PAX_PAGEEXEC
1898 +void pax_report_insns(struct pt_regs *regs, void *pc, void *sp)
1899 +{
1900 + long i;
1901 +
1902 + printk(KERN_ERR "PAX: bytes at PC: ");
1903 + for (i = 0; i < 20; i++) {
1904 + unsigned char c;
1905 + if (get_user(c, (__force unsigned char __user *)pc+i))
1906 + printk(KERN_CONT "?? ");
1907 + else
1908 + printk(KERN_CONT "%02x ", c);
1909 + }
1910 + printk("\n");
1911 +
1912 + printk(KERN_ERR "PAX: bytes at SP-4: ");
1913 + for (i = -1; i < 20; i++) {
1914 + unsigned long c;
1915 + if (get_user(c, (__force unsigned long __user *)sp+i))
1916 + printk(KERN_CONT "???????? ");
1917 + else
1918 + printk(KERN_CONT "%08lx ", c);
1919 + }
1920 + printk("\n");
1921 +}
1922 +#endif
1923 +
1924 /*
1925 * First Level Translation Fault Handler
1926 *
1927 @@ -574,6 +608,20 @@ do_PrefetchAbort(unsigned long addr, unsigned int ifsr, struct pt_regs *regs)
1928 const struct fsr_info *inf = ifsr_info + fsr_fs(ifsr);
1929 struct siginfo info;
1930
1931 +#ifdef CONFIG_PAX_REFCOUNT
1932 + if (fsr_fs(ifsr) == 2) {
1933 + unsigned int bkpt;
1934 +
1935 + if (!probe_kernel_address((unsigned int *)addr, bkpt) && bkpt == 0xe12f1073) {
1936 + current->thread.error_code = ifsr;
1937 + current->thread.trap_no = 0;
1938 + pax_report_refcount_overflow(regs);
1939 + fixup_exception(regs);
1940 + return;
1941 + }
1942 + }
1943 +#endif
1944 +
1945 if (!inf->fn(addr, ifsr | FSR_LNX_PF, regs))
1946 return;
1947
1948 diff --git a/arch/arm/mm/mmap.c b/arch/arm/mm/mmap.c
1949 index ce8cb19..3ec539d 100644
1950 --- a/arch/arm/mm/mmap.c
1951 +++ b/arch/arm/mm/mmap.c
1952 @@ -93,6 +93,10 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
1953 if (len > TASK_SIZE)
1954 return -ENOMEM;
1955
1956 +#ifdef CONFIG_PAX_RANDMMAP
1957 + if (!(mm->pax_flags & MF_PAX_RANDMMAP))
1958 +#endif
1959 +
1960 if (addr) {
1961 if (do_align)
1962 addr = COLOUR_ALIGN(addr, pgoff);
1963 @@ -100,15 +104,14 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
1964 addr = PAGE_ALIGN(addr);
1965
1966 vma = find_vma(mm, addr);
1967 - if (TASK_SIZE - len >= addr &&
1968 - (!vma || addr + len <= vma->vm_start))
1969 + if (TASK_SIZE - len >= addr && check_heap_stack_gap(vma, addr, len))
1970 return addr;
1971 }
1972 if (len > mm->cached_hole_size) {
1973 - start_addr = addr = mm->free_area_cache;
1974 + start_addr = addr = mm->free_area_cache;
1975 } else {
1976 - start_addr = addr = mm->mmap_base;
1977 - mm->cached_hole_size = 0;
1978 + start_addr = addr = mm->mmap_base;
1979 + mm->cached_hole_size = 0;
1980 }
1981
1982 full_search:
1983 @@ -124,14 +127,14 @@ full_search:
1984 * Start a new search - just in case we missed
1985 * some holes.
1986 */
1987 - if (start_addr != TASK_UNMAPPED_BASE) {
1988 - start_addr = addr = TASK_UNMAPPED_BASE;
1989 + if (start_addr != mm->mmap_base) {
1990 + start_addr = addr = mm->mmap_base;
1991 mm->cached_hole_size = 0;
1992 goto full_search;
1993 }
1994 return -ENOMEM;
1995 }
1996 - if (!vma || addr + len <= vma->vm_start) {
1997 + if (check_heap_stack_gap(vma, addr, len)) {
1998 /*
1999 * Remember the place where we stopped the search:
2000 */
2001 @@ -266,10 +269,22 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
2002
2003 if (mmap_is_legacy()) {
2004 mm->mmap_base = TASK_UNMAPPED_BASE + random_factor;
2005 +
2006 +#ifdef CONFIG_PAX_RANDMMAP
2007 + if (mm->pax_flags & MF_PAX_RANDMMAP)
2008 + mm->mmap_base += mm->delta_mmap;
2009 +#endif
2010 +
2011 mm->get_unmapped_area = arch_get_unmapped_area;
2012 mm->unmap_area = arch_unmap_area;
2013 } else {
2014 mm->mmap_base = mmap_base(random_factor);
2015 +
2016 +#ifdef CONFIG_PAX_RANDMMAP
2017 + if (mm->pax_flags & MF_PAX_RANDMMAP)
2018 + mm->mmap_base -= mm->delta_mmap + mm->delta_stack;
2019 +#endif
2020 +
2021 mm->get_unmapped_area = arch_get_unmapped_area_topdown;
2022 mm->unmap_area = arch_unmap_area_topdown;
2023 }
2024 diff --git a/arch/arm/plat-orion/include/plat/addr-map.h b/arch/arm/plat-orion/include/plat/addr-map.h
2025 index fd556f7..af2e7d2 100644
2026 --- a/arch/arm/plat-orion/include/plat/addr-map.h
2027 +++ b/arch/arm/plat-orion/include/plat/addr-map.h
2028 @@ -26,7 +26,7 @@ struct orion_addr_map_cfg {
2029 value in bridge_virt_base */
2030 void __iomem *(*win_cfg_base) (const struct orion_addr_map_cfg *cfg,
2031 const int win);
2032 -};
2033 +} __no_const;
2034
2035 /*
2036 * Information needed to setup one address mapping.
2037 diff --git a/arch/arm/plat-samsung/include/plat/dma-ops.h b/arch/arm/plat-samsung/include/plat/dma-ops.h
2038 index 71a6827..e7fbc23 100644
2039 --- a/arch/arm/plat-samsung/include/plat/dma-ops.h
2040 +++ b/arch/arm/plat-samsung/include/plat/dma-ops.h
2041 @@ -43,7 +43,7 @@ struct samsung_dma_ops {
2042 int (*started)(unsigned ch);
2043 int (*flush)(unsigned ch);
2044 int (*stop)(unsigned ch);
2045 -};
2046 +} __no_const;
2047
2048 extern void *samsung_dmadev_get_ops(void);
2049 extern void *s3c_dma_get_ops(void);
2050 diff --git a/arch/arm/plat-samsung/include/plat/ehci.h b/arch/arm/plat-samsung/include/plat/ehci.h
2051 index 5f28cae..3d23723 100644
2052 --- a/arch/arm/plat-samsung/include/plat/ehci.h
2053 +++ b/arch/arm/plat-samsung/include/plat/ehci.h
2054 @@ -14,7 +14,7 @@
2055 struct s5p_ehci_platdata {
2056 int (*phy_init)(struct platform_device *pdev, int type);
2057 int (*phy_exit)(struct platform_device *pdev, int type);
2058 -};
2059 +} __no_const;
2060
2061 extern void s5p_ehci_set_platdata(struct s5p_ehci_platdata *pd);
2062
2063 diff --git a/arch/avr32/include/asm/cache.h b/arch/avr32/include/asm/cache.h
2064 index c3a58a1..78fbf54 100644
2065 --- a/arch/avr32/include/asm/cache.h
2066 +++ b/arch/avr32/include/asm/cache.h
2067 @@ -1,8 +1,10 @@
2068 #ifndef __ASM_AVR32_CACHE_H
2069 #define __ASM_AVR32_CACHE_H
2070
2071 +#include <linux/const.h>
2072 +
2073 #define L1_CACHE_SHIFT 5
2074 -#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
2075 +#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
2076
2077 /*
2078 * Memory returned by kmalloc() may be used for DMA, so we must make
2079 diff --git a/arch/avr32/include/asm/elf.h b/arch/avr32/include/asm/elf.h
2080 index 3b3159b..425ea94 100644
2081 --- a/arch/avr32/include/asm/elf.h
2082 +++ b/arch/avr32/include/asm/elf.h
2083 @@ -84,8 +84,14 @@ typedef struct user_fpu_struct elf_fpregset_t;
2084 the loader. We need to make sure that it is out of the way of the program
2085 that it will "exec", and that there is sufficient room for the brk. */
2086
2087 -#define ELF_ET_DYN_BASE (2 * TASK_SIZE / 3)
2088 +#define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2)
2089
2090 +#ifdef CONFIG_PAX_ASLR
2091 +#define PAX_ELF_ET_DYN_BASE 0x00001000UL
2092 +
2093 +#define PAX_DELTA_MMAP_LEN 15
2094 +#define PAX_DELTA_STACK_LEN 15
2095 +#endif
2096
2097 /* This yields a mask that user programs can use to figure out what
2098 instruction set this CPU supports. This could be done in user space,
2099 diff --git a/arch/avr32/include/asm/kmap_types.h b/arch/avr32/include/asm/kmap_types.h
2100 index b7f5c68..556135c 100644
2101 --- a/arch/avr32/include/asm/kmap_types.h
2102 +++ b/arch/avr32/include/asm/kmap_types.h
2103 @@ -22,7 +22,8 @@ D(10) KM_IRQ0,
2104 D(11) KM_IRQ1,
2105 D(12) KM_SOFTIRQ0,
2106 D(13) KM_SOFTIRQ1,
2107 -D(14) KM_TYPE_NR
2108 +D(14) KM_CLEARPAGE,
2109 +D(15) KM_TYPE_NR
2110 };
2111
2112 #undef D
2113 diff --git a/arch/avr32/mm/fault.c b/arch/avr32/mm/fault.c
2114 index f7040a1..db9f300 100644
2115 --- a/arch/avr32/mm/fault.c
2116 +++ b/arch/avr32/mm/fault.c
2117 @@ -41,6 +41,23 @@ static inline int notify_page_fault(struct pt_regs *regs, int trap)
2118
2119 int exception_trace = 1;
2120
2121 +#ifdef CONFIG_PAX_PAGEEXEC
2122 +void pax_report_insns(struct pt_regs *regs, void *pc, void *sp)
2123 +{
2124 + unsigned long i;
2125 +
2126 + printk(KERN_ERR "PAX: bytes at PC: ");
2127 + for (i = 0; i < 20; i++) {
2128 + unsigned char c;
2129 + if (get_user(c, (unsigned char *)pc+i))
2130 + printk(KERN_CONT "???????? ");
2131 + else
2132 + printk(KERN_CONT "%02x ", c);
2133 + }
2134 + printk("\n");
2135 +}
2136 +#endif
2137 +
2138 /*
2139 * This routine handles page faults. It determines the address and the
2140 * problem, and then passes it off to one of the appropriate routines.
2141 @@ -156,6 +173,16 @@ bad_area:
2142 up_read(&mm->mmap_sem);
2143
2144 if (user_mode(regs)) {
2145 +
2146 +#ifdef CONFIG_PAX_PAGEEXEC
2147 + if (mm->pax_flags & MF_PAX_PAGEEXEC) {
2148 + if (ecr == ECR_PROTECTION_X || ecr == ECR_TLB_MISS_X) {
2149 + pax_report_fault(regs, (void *)regs->pc, (void *)regs->sp);
2150 + do_group_exit(SIGKILL);
2151 + }
2152 + }
2153 +#endif
2154 +
2155 if (exception_trace && printk_ratelimit())
2156 printk("%s%s[%d]: segfault at %08lx pc %08lx "
2157 "sp %08lx ecr %lu\n",
2158 diff --git a/arch/blackfin/include/asm/cache.h b/arch/blackfin/include/asm/cache.h
2159 index 568885a..f8008df 100644
2160 --- a/arch/blackfin/include/asm/cache.h
2161 +++ b/arch/blackfin/include/asm/cache.h
2162 @@ -7,6 +7,7 @@
2163 #ifndef __ARCH_BLACKFIN_CACHE_H
2164 #define __ARCH_BLACKFIN_CACHE_H
2165
2166 +#include <linux/const.h>
2167 #include <linux/linkage.h> /* for asmlinkage */
2168
2169 /*
2170 @@ -14,7 +15,7 @@
2171 * Blackfin loads 32 bytes for cache
2172 */
2173 #define L1_CACHE_SHIFT 5
2174 -#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
2175 +#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
2176 #define SMP_CACHE_BYTES L1_CACHE_BYTES
2177
2178 #define ARCH_DMA_MINALIGN L1_CACHE_BYTES
2179 diff --git a/arch/cris/include/arch-v10/arch/cache.h b/arch/cris/include/arch-v10/arch/cache.h
2180 index aea2718..3639a60 100644
2181 --- a/arch/cris/include/arch-v10/arch/cache.h
2182 +++ b/arch/cris/include/arch-v10/arch/cache.h
2183 @@ -1,8 +1,9 @@
2184 #ifndef _ASM_ARCH_CACHE_H
2185 #define _ASM_ARCH_CACHE_H
2186
2187 +#include <linux/const.h>
2188 /* Etrax 100LX have 32-byte cache-lines. */
2189 -#define L1_CACHE_BYTES 32
2190 #define L1_CACHE_SHIFT 5
2191 +#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
2192
2193 #endif /* _ASM_ARCH_CACHE_H */
2194 diff --git a/arch/cris/include/arch-v32/arch/cache.h b/arch/cris/include/arch-v32/arch/cache.h
2195 index 7caf25d..ee65ac5 100644
2196 --- a/arch/cris/include/arch-v32/arch/cache.h
2197 +++ b/arch/cris/include/arch-v32/arch/cache.h
2198 @@ -1,11 +1,12 @@
2199 #ifndef _ASM_CRIS_ARCH_CACHE_H
2200 #define _ASM_CRIS_ARCH_CACHE_H
2201
2202 +#include <linux/const.h>
2203 #include <arch/hwregs/dma.h>
2204
2205 /* A cache-line is 32 bytes. */
2206 -#define L1_CACHE_BYTES 32
2207 #define L1_CACHE_SHIFT 5
2208 +#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
2209
2210 #define __read_mostly __attribute__((__section__(".data..read_mostly")))
2211
2212 diff --git a/arch/frv/include/asm/atomic.h b/arch/frv/include/asm/atomic.h
2213 index b86329d..6709906 100644
2214 --- a/arch/frv/include/asm/atomic.h
2215 +++ b/arch/frv/include/asm/atomic.h
2216 @@ -186,6 +186,16 @@ static inline void atomic64_dec(atomic64_t *v)
2217 #define atomic64_cmpxchg(v, old, new) (__cmpxchg_64(old, new, &(v)->counter))
2218 #define atomic64_xchg(v, new) (__xchg_64(new, &(v)->counter))
2219
2220 +#define atomic64_read_unchecked(v) atomic64_read(v)
2221 +#define atomic64_set_unchecked(v, i) atomic64_set((v), (i))
2222 +#define atomic64_add_unchecked(a, v) atomic64_add((a), (v))
2223 +#define atomic64_add_return_unchecked(a, v) atomic64_add_return((a), (v))
2224 +#define atomic64_sub_unchecked(a, v) atomic64_sub((a), (v))
2225 +#define atomic64_inc_unchecked(v) atomic64_inc(v)
2226 +#define atomic64_inc_return_unchecked(v) atomic64_inc_return(v)
2227 +#define atomic64_dec_unchecked(v) atomic64_dec(v)
2228 +#define atomic64_cmpxchg_unchecked(v, o, n) atomic64_cmpxchg((v), (o), (n))
2229 +
2230 static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u)
2231 {
2232 int c, old;
2233 diff --git a/arch/frv/include/asm/cache.h b/arch/frv/include/asm/cache.h
2234 index 2797163..c2a401d 100644
2235 --- a/arch/frv/include/asm/cache.h
2236 +++ b/arch/frv/include/asm/cache.h
2237 @@ -12,10 +12,11 @@
2238 #ifndef __ASM_CACHE_H
2239 #define __ASM_CACHE_H
2240
2241 +#include <linux/const.h>
2242
2243 /* bytes per L1 cache line */
2244 #define L1_CACHE_SHIFT (CONFIG_FRV_L1_CACHE_SHIFT)
2245 -#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
2246 +#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
2247
2248 #define __cacheline_aligned __attribute__((aligned(L1_CACHE_BYTES)))
2249 #define ____cacheline_aligned __attribute__((aligned(L1_CACHE_BYTES)))
2250 diff --git a/arch/frv/include/asm/kmap_types.h b/arch/frv/include/asm/kmap_types.h
2251 index f8e16b2..c73ff79 100644
2252 --- a/arch/frv/include/asm/kmap_types.h
2253 +++ b/arch/frv/include/asm/kmap_types.h
2254 @@ -23,6 +23,7 @@ enum km_type {
2255 KM_IRQ1,
2256 KM_SOFTIRQ0,
2257 KM_SOFTIRQ1,
2258 + KM_CLEARPAGE,
2259 KM_TYPE_NR
2260 };
2261
2262 diff --git a/arch/frv/mm/elf-fdpic.c b/arch/frv/mm/elf-fdpic.c
2263 index 385fd30..6c3d97e 100644
2264 --- a/arch/frv/mm/elf-fdpic.c
2265 +++ b/arch/frv/mm/elf-fdpic.c
2266 @@ -73,8 +73,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
2267 if (addr) {
2268 addr = PAGE_ALIGN(addr);
2269 vma = find_vma(current->mm, addr);
2270 - if (TASK_SIZE - len >= addr &&
2271 - (!vma || addr + len <= vma->vm_start))
2272 + if (TASK_SIZE - len >= addr && check_heap_stack_gap(vma, addr, len))
2273 goto success;
2274 }
2275
2276 @@ -89,7 +88,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
2277 for (; vma; vma = vma->vm_next) {
2278 if (addr > limit)
2279 break;
2280 - if (addr + len <= vma->vm_start)
2281 + if (check_heap_stack_gap(vma, addr, len))
2282 goto success;
2283 addr = vma->vm_end;
2284 }
2285 @@ -104,7 +103,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
2286 for (; vma; vma = vma->vm_next) {
2287 if (addr > limit)
2288 break;
2289 - if (addr + len <= vma->vm_start)
2290 + if (check_heap_stack_gap(vma, addr, len))
2291 goto success;
2292 addr = vma->vm_end;
2293 }
2294 diff --git a/arch/h8300/include/asm/cache.h b/arch/h8300/include/asm/cache.h
2295 index c635028..6d9445a 100644
2296 --- a/arch/h8300/include/asm/cache.h
2297 +++ b/arch/h8300/include/asm/cache.h
2298 @@ -1,8 +1,10 @@
2299 #ifndef __ARCH_H8300_CACHE_H
2300 #define __ARCH_H8300_CACHE_H
2301
2302 +#include <linux/const.h>
2303 +
2304 /* bytes per L1 cache line */
2305 -#define L1_CACHE_BYTES 4
2306 +#define L1_CACHE_BYTES _AC(4,UL)
2307
2308 /* m68k-elf-gcc 2.95.2 doesn't like these */
2309
2310 diff --git a/arch/hexagon/include/asm/cache.h b/arch/hexagon/include/asm/cache.h
2311 index 0f01de2..d37d309 100644
2312 --- a/arch/hexagon/include/asm/cache.h
2313 +++ b/arch/hexagon/include/asm/cache.h
2314 @@ -21,9 +21,11 @@
2315 #ifndef __ASM_CACHE_H
2316 #define __ASM_CACHE_H
2317
2318 +#include <linux/const.h>
2319 +
2320 /* Bytes per L1 cache line */
2321 -#define L1_CACHE_SHIFT (5)
2322 -#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
2323 +#define L1_CACHE_SHIFT 5
2324 +#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
2325
2326 #define __cacheline_aligned __aligned(L1_CACHE_BYTES)
2327 #define ____cacheline_aligned __aligned(L1_CACHE_BYTES)
2328 diff --git a/arch/ia64/include/asm/atomic.h b/arch/ia64/include/asm/atomic.h
2329 index 6e6fe18..a6ae668 100644
2330 --- a/arch/ia64/include/asm/atomic.h
2331 +++ b/arch/ia64/include/asm/atomic.h
2332 @@ -208,6 +208,16 @@ atomic64_add_negative (__s64 i, atomic64_t *v)
2333 #define atomic64_inc(v) atomic64_add(1, (v))
2334 #define atomic64_dec(v) atomic64_sub(1, (v))
2335
2336 +#define atomic64_read_unchecked(v) atomic64_read(v)
2337 +#define atomic64_set_unchecked(v, i) atomic64_set((v), (i))
2338 +#define atomic64_add_unchecked(a, v) atomic64_add((a), (v))
2339 +#define atomic64_add_return_unchecked(a, v) atomic64_add_return((a), (v))
2340 +#define atomic64_sub_unchecked(a, v) atomic64_sub((a), (v))
2341 +#define atomic64_inc_unchecked(v) atomic64_inc(v)
2342 +#define atomic64_inc_return_unchecked(v) atomic64_inc_return(v)
2343 +#define atomic64_dec_unchecked(v) atomic64_dec(v)
2344 +#define atomic64_cmpxchg_unchecked(v, o, n) atomic64_cmpxchg((v), (o), (n))
2345 +
2346 /* Atomic operations are already serializing */
2347 #define smp_mb__before_atomic_dec() barrier()
2348 #define smp_mb__after_atomic_dec() barrier()
2349 diff --git a/arch/ia64/include/asm/cache.h b/arch/ia64/include/asm/cache.h
2350 index 988254a..e1ee885 100644
2351 --- a/arch/ia64/include/asm/cache.h
2352 +++ b/arch/ia64/include/asm/cache.h
2353 @@ -1,6 +1,7 @@
2354 #ifndef _ASM_IA64_CACHE_H
2355 #define _ASM_IA64_CACHE_H
2356
2357 +#include <linux/const.h>
2358
2359 /*
2360 * Copyright (C) 1998-2000 Hewlett-Packard Co
2361 @@ -9,7 +10,7 @@
2362
2363 /* Bytes per L1 (data) cache line. */
2364 #define L1_CACHE_SHIFT CONFIG_IA64_L1_CACHE_SHIFT
2365 -#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
2366 +#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
2367
2368 #ifdef CONFIG_SMP
2369 # define SMP_CACHE_SHIFT L1_CACHE_SHIFT
2370 diff --git a/arch/ia64/include/asm/elf.h b/arch/ia64/include/asm/elf.h
2371 index b5298eb..67c6e62 100644
2372 --- a/arch/ia64/include/asm/elf.h
2373 +++ b/arch/ia64/include/asm/elf.h
2374 @@ -42,6 +42,13 @@
2375 */
2376 #define ELF_ET_DYN_BASE (TASK_UNMAPPED_BASE + 0x800000000UL)
2377
2378 +#ifdef CONFIG_PAX_ASLR
2379 +#define PAX_ELF_ET_DYN_BASE (current->personality == PER_LINUX32 ? 0x08048000UL : 0x4000000000000000UL)
2380 +
2381 +#define PAX_DELTA_MMAP_LEN (current->personality == PER_LINUX32 ? 16 : 3*PAGE_SHIFT - 13)
2382 +#define PAX_DELTA_STACK_LEN (current->personality == PER_LINUX32 ? 16 : 3*PAGE_SHIFT - 13)
2383 +#endif
2384 +
2385 #define PT_IA_64_UNWIND 0x70000001
2386
2387 /* IA-64 relocations: */
2388 diff --git a/arch/ia64/include/asm/pgalloc.h b/arch/ia64/include/asm/pgalloc.h
2389 index 96a8d92..617a1cf 100644
2390 --- a/arch/ia64/include/asm/pgalloc.h
2391 +++ b/arch/ia64/include/asm/pgalloc.h
2392 @@ -39,6 +39,12 @@ pgd_populate(struct mm_struct *mm, pgd_t * pgd_entry, pud_t * pud)
2393 pgd_val(*pgd_entry) = __pa(pud);
2394 }
2395
2396 +static inline void
2397 +pgd_populate_kernel(struct mm_struct *mm, pgd_t * pgd_entry, pud_t * pud)
2398 +{
2399 + pgd_populate(mm, pgd_entry, pud);
2400 +}
2401 +
2402 static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr)
2403 {
2404 return quicklist_alloc(0, GFP_KERNEL, NULL);
2405 @@ -57,6 +63,12 @@ pud_populate(struct mm_struct *mm, pud_t * pud_entry, pmd_t * pmd)
2406 pud_val(*pud_entry) = __pa(pmd);
2407 }
2408
2409 +static inline void
2410 +pud_populate_kernel(struct mm_struct *mm, pud_t * pud_entry, pmd_t * pmd)
2411 +{
2412 + pud_populate(mm, pud_entry, pmd);
2413 +}
2414 +
2415 static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr)
2416 {
2417 return quicklist_alloc(0, GFP_KERNEL, NULL);
2418 diff --git a/arch/ia64/include/asm/pgtable.h b/arch/ia64/include/asm/pgtable.h
2419 index 815810c..d60bd4c 100644
2420 --- a/arch/ia64/include/asm/pgtable.h
2421 +++ b/arch/ia64/include/asm/pgtable.h
2422 @@ -12,7 +12,7 @@
2423 * David Mosberger-Tang <davidm@hpl.hp.com>
2424 */
2425
2426 -
2427 +#include <linux/const.h>
2428 #include <asm/mman.h>
2429 #include <asm/page.h>
2430 #include <asm/processor.h>
2431 @@ -142,6 +142,17 @@
2432 #define PAGE_READONLY __pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_R)
2433 #define PAGE_COPY __pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_R)
2434 #define PAGE_COPY_EXEC __pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_RX)
2435 +
2436 +#ifdef CONFIG_PAX_PAGEEXEC
2437 +# define PAGE_SHARED_NOEXEC __pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_RW)
2438 +# define PAGE_READONLY_NOEXEC __pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_R)
2439 +# define PAGE_COPY_NOEXEC __pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_R)
2440 +#else
2441 +# define PAGE_SHARED_NOEXEC PAGE_SHARED
2442 +# define PAGE_READONLY_NOEXEC PAGE_READONLY
2443 +# define PAGE_COPY_NOEXEC PAGE_COPY
2444 +#endif
2445 +
2446 #define PAGE_GATE __pgprot(__ACCESS_BITS | _PAGE_PL_0 | _PAGE_AR_X_RX)
2447 #define PAGE_KERNEL __pgprot(__DIRTY_BITS | _PAGE_PL_0 | _PAGE_AR_RWX)
2448 #define PAGE_KERNELRX __pgprot(__ACCESS_BITS | _PAGE_PL_0 | _PAGE_AR_RX)
2449 diff --git a/arch/ia64/include/asm/spinlock.h b/arch/ia64/include/asm/spinlock.h
2450 index 54ff557..70c88b7 100644
2451 --- a/arch/ia64/include/asm/spinlock.h
2452 +++ b/arch/ia64/include/asm/spinlock.h
2453 @@ -71,7 +71,7 @@ static __always_inline void __ticket_spin_unlock(arch_spinlock_t *lock)
2454 unsigned short *p = (unsigned short *)&lock->lock + 1, tmp;
2455
2456 asm volatile ("ld2.bias %0=[%1]" : "=r"(tmp) : "r"(p));
2457 - ACCESS_ONCE(*p) = (tmp + 2) & ~1;
2458 + ACCESS_ONCE_RW(*p) = (tmp + 2) & ~1;
2459 }
2460
2461 static __always_inline void __ticket_spin_unlock_wait(arch_spinlock_t *lock)
2462 diff --git a/arch/ia64/include/asm/uaccess.h b/arch/ia64/include/asm/uaccess.h
2463 index 449c8c0..432a3d2 100644
2464 --- a/arch/ia64/include/asm/uaccess.h
2465 +++ b/arch/ia64/include/asm/uaccess.h
2466 @@ -257,7 +257,7 @@ __copy_from_user (void *to, const void __user *from, unsigned long count)
2467 const void *__cu_from = (from); \
2468 long __cu_len = (n); \
2469 \
2470 - if (__access_ok(__cu_to, __cu_len, get_fs())) \
2471 + if (__cu_len > 0 && __cu_len <= INT_MAX && __access_ok(__cu_to, __cu_len, get_fs())) \
2472 __cu_len = __copy_user(__cu_to, (__force void __user *) __cu_from, __cu_len); \
2473 __cu_len; \
2474 })
2475 @@ -269,7 +269,7 @@ __copy_from_user (void *to, const void __user *from, unsigned long count)
2476 long __cu_len = (n); \
2477 \
2478 __chk_user_ptr(__cu_from); \
2479 - if (__access_ok(__cu_from, __cu_len, get_fs())) \
2480 + if (__cu_len > 0 && __cu_len <= INT_MAX && __access_ok(__cu_from, __cu_len, get_fs())) \
2481 __cu_len = __copy_user((__force void __user *) __cu_to, __cu_from, __cu_len); \
2482 __cu_len; \
2483 })
2484 diff --git a/arch/ia64/kernel/module.c b/arch/ia64/kernel/module.c
2485 index 24603be..948052d 100644
2486 --- a/arch/ia64/kernel/module.c
2487 +++ b/arch/ia64/kernel/module.c
2488 @@ -307,8 +307,7 @@ plt_target (struct plt_entry *plt)
2489 void
2490 module_free (struct module *mod, void *module_region)
2491 {
2492 - if (mod && mod->arch.init_unw_table &&
2493 - module_region == mod->module_init) {
2494 + if (mod && mod->arch.init_unw_table && module_region == mod->module_init_rx) {
2495 unw_remove_unwind_table(mod->arch.init_unw_table);
2496 mod->arch.init_unw_table = NULL;
2497 }
2498 @@ -494,15 +493,39 @@ module_frob_arch_sections (Elf_Ehdr *ehdr, Elf_Shdr *sechdrs, char *secstrings,
2499 }
2500
2501 static inline int
2502 +in_init_rx (const struct module *mod, uint64_t addr)
2503 +{
2504 + return addr - (uint64_t) mod->module_init_rx < mod->init_size_rx;
2505 +}
2506 +
2507 +static inline int
2508 +in_init_rw (const struct module *mod, uint64_t addr)
2509 +{
2510 + return addr - (uint64_t) mod->module_init_rw < mod->init_size_rw;
2511 +}
2512 +
2513 +static inline int
2514 in_init (const struct module *mod, uint64_t addr)
2515 {
2516 - return addr - (uint64_t) mod->module_init < mod->init_size;
2517 + return in_init_rx(mod, addr) || in_init_rw(mod, addr);
2518 +}
2519 +
2520 +static inline int
2521 +in_core_rx (const struct module *mod, uint64_t addr)
2522 +{
2523 + return addr - (uint64_t) mod->module_core_rx < mod->core_size_rx;
2524 +}
2525 +
2526 +static inline int
2527 +in_core_rw (const struct module *mod, uint64_t addr)
2528 +{
2529 + return addr - (uint64_t) mod->module_core_rw < mod->core_size_rw;
2530 }
2531
2532 static inline int
2533 in_core (const struct module *mod, uint64_t addr)
2534 {
2535 - return addr - (uint64_t) mod->module_core < mod->core_size;
2536 + return in_core_rx(mod, addr) || in_core_rw(mod, addr);
2537 }
2538
2539 static inline int
2540 @@ -685,7 +708,14 @@ do_reloc (struct module *mod, uint8_t r_type, Elf64_Sym *sym, uint64_t addend,
2541 break;
2542
2543 case RV_BDREL:
2544 - val -= (uint64_t) (in_init(mod, val) ? mod->module_init : mod->module_core);
2545 + if (in_init_rx(mod, val))
2546 + val -= (uint64_t) mod->module_init_rx;
2547 + else if (in_init_rw(mod, val))
2548 + val -= (uint64_t) mod->module_init_rw;
2549 + else if (in_core_rx(mod, val))
2550 + val -= (uint64_t) mod->module_core_rx;
2551 + else if (in_core_rw(mod, val))
2552 + val -= (uint64_t) mod->module_core_rw;
2553 break;
2554
2555 case RV_LTV:
2556 @@ -820,15 +850,15 @@ apply_relocate_add (Elf64_Shdr *sechdrs, const char *strtab, unsigned int symind
2557 * addresses have been selected...
2558 */
2559 uint64_t gp;
2560 - if (mod->core_size > MAX_LTOFF)
2561 + if (mod->core_size_rx + mod->core_size_rw > MAX_LTOFF)
2562 /*
2563 * This takes advantage of fact that SHF_ARCH_SMALL gets allocated
2564 * at the end of the module.
2565 */
2566 - gp = mod->core_size - MAX_LTOFF / 2;
2567 + gp = mod->core_size_rx + mod->core_size_rw - MAX_LTOFF / 2;
2568 else
2569 - gp = mod->core_size / 2;
2570 - gp = (uint64_t) mod->module_core + ((gp + 7) & -8);
2571 + gp = (mod->core_size_rx + mod->core_size_rw) / 2;
2572 + gp = (uint64_t) mod->module_core_rx + ((gp + 7) & -8);
2573 mod->arch.gp = gp;
2574 DEBUGP("%s: placing gp at 0x%lx\n", __func__, gp);
2575 }
2576 diff --git a/arch/ia64/kernel/sys_ia64.c b/arch/ia64/kernel/sys_ia64.c
2577 index d9439ef..b9a4303 100644
2578 --- a/arch/ia64/kernel/sys_ia64.c
2579 +++ b/arch/ia64/kernel/sys_ia64.c
2580 @@ -43,6 +43,13 @@ arch_get_unmapped_area (struct file *filp, unsigned long addr, unsigned long len
2581 if (REGION_NUMBER(addr) == RGN_HPAGE)
2582 addr = 0;
2583 #endif
2584 +
2585 +#ifdef CONFIG_PAX_RANDMMAP
2586 + if (mm->pax_flags & MF_PAX_RANDMMAP)
2587 + addr = mm->free_area_cache;
2588 + else
2589 +#endif
2590 +
2591 if (!addr)
2592 addr = mm->free_area_cache;
2593
2594 @@ -61,14 +68,14 @@ arch_get_unmapped_area (struct file *filp, unsigned long addr, unsigned long len
2595 for (vma = find_vma(mm, addr); ; vma = vma->vm_next) {
2596 /* At this point: (!vma || addr < vma->vm_end). */
2597 if (TASK_SIZE - len < addr || RGN_MAP_LIMIT - len < REGION_OFFSET(addr)) {
2598 - if (start_addr != TASK_UNMAPPED_BASE) {
2599 + if (start_addr != mm->mmap_base) {
2600 /* Start a new search --- just in case we missed some holes. */
2601 - addr = TASK_UNMAPPED_BASE;
2602 + addr = mm->mmap_base;
2603 goto full_search;
2604 }
2605 return -ENOMEM;
2606 }
2607 - if (!vma || addr + len <= vma->vm_start) {
2608 + if (check_heap_stack_gap(vma, addr, len)) {
2609 /* Remember the address where we stopped this search: */
2610 mm->free_area_cache = addr + len;
2611 return addr;
2612 diff --git a/arch/ia64/kernel/vmlinux.lds.S b/arch/ia64/kernel/vmlinux.lds.S
2613 index 0ccb28f..8992469 100644
2614 --- a/arch/ia64/kernel/vmlinux.lds.S
2615 +++ b/arch/ia64/kernel/vmlinux.lds.S
2616 @@ -198,7 +198,7 @@ SECTIONS {
2617 /* Per-cpu data: */
2618 . = ALIGN(PERCPU_PAGE_SIZE);
2619 PERCPU_VADDR(SMP_CACHE_BYTES, PERCPU_ADDR, :percpu)
2620 - __phys_per_cpu_start = __per_cpu_load;
2621 + __phys_per_cpu_start = per_cpu_load;
2622 /*
2623 * ensure percpu data fits
2624 * into percpu page size
2625 diff --git a/arch/ia64/mm/fault.c b/arch/ia64/mm/fault.c
2626 index 02d29c2..ea893df 100644
2627 --- a/arch/ia64/mm/fault.c
2628 +++ b/arch/ia64/mm/fault.c
2629 @@ -72,6 +72,23 @@ mapped_kernel_page_is_present (unsigned long address)
2630 return pte_present(pte);
2631 }
2632
2633 +#ifdef CONFIG_PAX_PAGEEXEC
2634 +void pax_report_insns(struct pt_regs *regs, void *pc, void *sp)
2635 +{
2636 + unsigned long i;
2637 +
2638 + printk(KERN_ERR "PAX: bytes at PC: ");
2639 + for (i = 0; i < 8; i++) {
2640 + unsigned int c;
2641 + if (get_user(c, (unsigned int *)pc+i))
2642 + printk(KERN_CONT "???????? ");
2643 + else
2644 + printk(KERN_CONT "%08x ", c);
2645 + }
2646 + printk("\n");
2647 +}
2648 +#endif
2649 +
2650 void __kprobes
2651 ia64_do_page_fault (unsigned long address, unsigned long isr, struct pt_regs *regs)
2652 {
2653 @@ -145,9 +162,23 @@ ia64_do_page_fault (unsigned long address, unsigned long isr, struct pt_regs *re
2654 mask = ( (((isr >> IA64_ISR_X_BIT) & 1UL) << VM_EXEC_BIT)
2655 | (((isr >> IA64_ISR_W_BIT) & 1UL) << VM_WRITE_BIT));
2656
2657 - if ((vma->vm_flags & mask) != mask)
2658 + if ((vma->vm_flags & mask) != mask) {
2659 +
2660 +#ifdef CONFIG_PAX_PAGEEXEC
2661 + if (!(vma->vm_flags & VM_EXEC) && (mask & VM_EXEC)) {
2662 + if (!(mm->pax_flags & MF_PAX_PAGEEXEC) || address != regs->cr_iip)
2663 + goto bad_area;
2664 +
2665 + up_read(&mm->mmap_sem);
2666 + pax_report_fault(regs, (void *)regs->cr_iip, (void *)regs->r12);
2667 + do_group_exit(SIGKILL);
2668 + }
2669 +#endif
2670 +
2671 goto bad_area;
2672
2673 + }
2674 +
2675 /*
2676 * If for any reason at all we couldn't handle the fault, make
2677 * sure we exit gracefully rather than endlessly redo the
2678 diff --git a/arch/ia64/mm/hugetlbpage.c b/arch/ia64/mm/hugetlbpage.c
2679 index 5ca674b..e0e1b70 100644
2680 --- a/arch/ia64/mm/hugetlbpage.c
2681 +++ b/arch/ia64/mm/hugetlbpage.c
2682 @@ -171,7 +171,7 @@ unsigned long hugetlb_get_unmapped_area(struct file *file, unsigned long addr, u
2683 /* At this point: (!vmm || addr < vmm->vm_end). */
2684 if (REGION_OFFSET(addr) + len > RGN_MAP_LIMIT)
2685 return -ENOMEM;
2686 - if (!vmm || (addr + len) <= vmm->vm_start)
2687 + if (check_heap_stack_gap(vmm, addr, len))
2688 return addr;
2689 addr = ALIGN(vmm->vm_end, HPAGE_SIZE);
2690 }
2691 diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c
2692 index 0eab454..bd794f2 100644
2693 --- a/arch/ia64/mm/init.c
2694 +++ b/arch/ia64/mm/init.c
2695 @@ -120,6 +120,19 @@ ia64_init_addr_space (void)
2696 vma->vm_start = current->thread.rbs_bot & PAGE_MASK;
2697 vma->vm_end = vma->vm_start + PAGE_SIZE;
2698 vma->vm_flags = VM_DATA_DEFAULT_FLAGS|VM_GROWSUP|VM_ACCOUNT;
2699 +
2700 +#ifdef CONFIG_PAX_PAGEEXEC
2701 + if (current->mm->pax_flags & MF_PAX_PAGEEXEC) {
2702 + vma->vm_flags &= ~VM_EXEC;
2703 +
2704 +#ifdef CONFIG_PAX_MPROTECT
2705 + if (current->mm->pax_flags & MF_PAX_MPROTECT)
2706 + vma->vm_flags &= ~VM_MAYEXEC;
2707 +#endif
2708 +
2709 + }
2710 +#endif
2711 +
2712 vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
2713 down_write(&current->mm->mmap_sem);
2714 if (insert_vm_struct(current->mm, vma)) {
2715 diff --git a/arch/m32r/include/asm/cache.h b/arch/m32r/include/asm/cache.h
2716 index 40b3ee9..8c2c112 100644
2717 --- a/arch/m32r/include/asm/cache.h
2718 +++ b/arch/m32r/include/asm/cache.h
2719 @@ -1,8 +1,10 @@
2720 #ifndef _ASM_M32R_CACHE_H
2721 #define _ASM_M32R_CACHE_H
2722
2723 +#include <linux/const.h>
2724 +
2725 /* L1 cache line size */
2726 #define L1_CACHE_SHIFT 4
2727 -#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
2728 +#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
2729
2730 #endif /* _ASM_M32R_CACHE_H */
2731 diff --git a/arch/m32r/lib/usercopy.c b/arch/m32r/lib/usercopy.c
2732 index 82abd15..d95ae5d 100644
2733 --- a/arch/m32r/lib/usercopy.c
2734 +++ b/arch/m32r/lib/usercopy.c
2735 @@ -14,6 +14,9 @@
2736 unsigned long
2737 __generic_copy_to_user(void __user *to, const void *from, unsigned long n)
2738 {
2739 + if ((long)n < 0)
2740 + return n;
2741 +
2742 prefetch(from);
2743 if (access_ok(VERIFY_WRITE, to, n))
2744 __copy_user(to,from,n);
2745 @@ -23,6 +26,9 @@ __generic_copy_to_user(void __user *to, const void *from, unsigned long n)
2746 unsigned long
2747 __generic_copy_from_user(void *to, const void __user *from, unsigned long n)
2748 {
2749 + if ((long)n < 0)
2750 + return n;
2751 +
2752 prefetchw(to);
2753 if (access_ok(VERIFY_READ, from, n))
2754 __copy_user_zeroing(to,from,n);
2755 diff --git a/arch/m68k/include/asm/cache.h b/arch/m68k/include/asm/cache.h
2756 index 0395c51..5f26031 100644
2757 --- a/arch/m68k/include/asm/cache.h
2758 +++ b/arch/m68k/include/asm/cache.h
2759 @@ -4,9 +4,11 @@
2760 #ifndef __ARCH_M68K_CACHE_H
2761 #define __ARCH_M68K_CACHE_H
2762
2763 +#include <linux/const.h>
2764 +
2765 /* bytes per L1 cache line */
2766 #define L1_CACHE_SHIFT 4
2767 -#define L1_CACHE_BYTES (1<< L1_CACHE_SHIFT)
2768 +#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
2769
2770 #define ARCH_DMA_MINALIGN L1_CACHE_BYTES
2771
2772 diff --git a/arch/microblaze/include/asm/cache.h b/arch/microblaze/include/asm/cache.h
2773 index 4efe96a..60e8699 100644
2774 --- a/arch/microblaze/include/asm/cache.h
2775 +++ b/arch/microblaze/include/asm/cache.h
2776 @@ -13,11 +13,12 @@
2777 #ifndef _ASM_MICROBLAZE_CACHE_H
2778 #define _ASM_MICROBLAZE_CACHE_H
2779
2780 +#include <linux/const.h>
2781 #include <asm/registers.h>
2782
2783 #define L1_CACHE_SHIFT 5
2784 /* word-granular cache in microblaze */
2785 -#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
2786 +#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
2787
2788 #define SMP_CACHE_BYTES L1_CACHE_BYTES
2789
2790 diff --git a/arch/mips/include/asm/atomic.h b/arch/mips/include/asm/atomic.h
2791 index 3f4c5cb..3439c6e 100644
2792 --- a/arch/mips/include/asm/atomic.h
2793 +++ b/arch/mips/include/asm/atomic.h
2794 @@ -21,6 +21,10 @@
2795 #include <asm/cmpxchg.h>
2796 #include <asm/war.h>
2797
2798 +#ifdef CONFIG_GENERIC_ATOMIC64
2799 +#include <asm-generic/atomic64.h>
2800 +#endif
2801 +
2802 #define ATOMIC_INIT(i) { (i) }
2803
2804 /*
2805 @@ -765,6 +769,16 @@ static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u)
2806 */
2807 #define atomic64_add_negative(i, v) (atomic64_add_return(i, (v)) < 0)
2808
2809 +#define atomic64_read_unchecked(v) atomic64_read(v)
2810 +#define atomic64_set_unchecked(v, i) atomic64_set((v), (i))
2811 +#define atomic64_add_unchecked(a, v) atomic64_add((a), (v))
2812 +#define atomic64_add_return_unchecked(a, v) atomic64_add_return((a), (v))
2813 +#define atomic64_sub_unchecked(a, v) atomic64_sub((a), (v))
2814 +#define atomic64_inc_unchecked(v) atomic64_inc(v)
2815 +#define atomic64_inc_return_unchecked(v) atomic64_inc_return(v)
2816 +#define atomic64_dec_unchecked(v) atomic64_dec(v)
2817 +#define atomic64_cmpxchg_unchecked(v, o, n) atomic64_cmpxchg((v), (o), (n))
2818 +
2819 #endif /* CONFIG_64BIT */
2820
2821 /*
2822 diff --git a/arch/mips/include/asm/cache.h b/arch/mips/include/asm/cache.h
2823 index b4db69f..8f3b093 100644
2824 --- a/arch/mips/include/asm/cache.h
2825 +++ b/arch/mips/include/asm/cache.h
2826 @@ -9,10 +9,11 @@
2827 #ifndef _ASM_CACHE_H
2828 #define _ASM_CACHE_H
2829
2830 +#include <linux/const.h>
2831 #include <kmalloc.h>
2832
2833 #define L1_CACHE_SHIFT CONFIG_MIPS_L1_CACHE_SHIFT
2834 -#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
2835 +#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
2836
2837 #define SMP_CACHE_SHIFT L1_CACHE_SHIFT
2838 #define SMP_CACHE_BYTES L1_CACHE_BYTES
2839 diff --git a/arch/mips/include/asm/elf.h b/arch/mips/include/asm/elf.h
2840 index 455c0ac..ad65fbe 100644
2841 --- a/arch/mips/include/asm/elf.h
2842 +++ b/arch/mips/include/asm/elf.h
2843 @@ -372,13 +372,16 @@ extern const char *__elf_platform;
2844 #define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2)
2845 #endif
2846
2847 +#ifdef CONFIG_PAX_ASLR
2848 +#define PAX_ELF_ET_DYN_BASE (TASK_IS_32BIT_ADDR ? 0x00400000UL : 0x00400000UL)
2849 +
2850 +#define PAX_DELTA_MMAP_LEN (TASK_IS_32BIT_ADDR ? 27-PAGE_SHIFT : 36-PAGE_SHIFT)
2851 +#define PAX_DELTA_STACK_LEN (TASK_IS_32BIT_ADDR ? 27-PAGE_SHIFT : 36-PAGE_SHIFT)
2852 +#endif
2853 +
2854 #define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1
2855 struct linux_binprm;
2856 extern int arch_setup_additional_pages(struct linux_binprm *bprm,
2857 int uses_interp);
2858
2859 -struct mm_struct;
2860 -extern unsigned long arch_randomize_brk(struct mm_struct *mm);
2861 -#define arch_randomize_brk arch_randomize_brk
2862 -
2863 #endif /* _ASM_ELF_H */
2864 diff --git a/arch/mips/include/asm/exec.h b/arch/mips/include/asm/exec.h
2865 index c1f6afa..38cc6e9 100644
2866 --- a/arch/mips/include/asm/exec.h
2867 +++ b/arch/mips/include/asm/exec.h
2868 @@ -12,6 +12,6 @@
2869 #ifndef _ASM_EXEC_H
2870 #define _ASM_EXEC_H
2871
2872 -extern unsigned long arch_align_stack(unsigned long sp);
2873 +#define arch_align_stack(x) ((x) & ~0xfUL)
2874
2875 #endif /* _ASM_EXEC_H */
2876 diff --git a/arch/mips/include/asm/page.h b/arch/mips/include/asm/page.h
2877 index da9bd7d..91aa7ab 100644
2878 --- a/arch/mips/include/asm/page.h
2879 +++ b/arch/mips/include/asm/page.h
2880 @@ -98,7 +98,7 @@ extern void copy_user_highpage(struct page *to, struct page *from,
2881 #ifdef CONFIG_CPU_MIPS32
2882 typedef struct { unsigned long pte_low, pte_high; } pte_t;
2883 #define pte_val(x) ((x).pte_low | ((unsigned long long)(x).pte_high << 32))
2884 - #define __pte(x) ({ pte_t __pte = {(x), ((unsigned long long)(x)) >> 32}; __pte; })
2885 + #define __pte(x) ({ pte_t __pte = {(x), (x) >> 32}; __pte; })
2886 #else
2887 typedef struct { unsigned long long pte; } pte_t;
2888 #define pte_val(x) ((x).pte)
2889 diff --git a/arch/mips/include/asm/pgalloc.h b/arch/mips/include/asm/pgalloc.h
2890 index 881d18b..cea38bc 100644
2891 --- a/arch/mips/include/asm/pgalloc.h
2892 +++ b/arch/mips/include/asm/pgalloc.h
2893 @@ -37,6 +37,11 @@ static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
2894 {
2895 set_pud(pud, __pud((unsigned long)pmd));
2896 }
2897 +
2898 +static inline void pud_populate_kernel(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
2899 +{
2900 + pud_populate(mm, pud, pmd);
2901 +}
2902 #endif
2903
2904 /*
2905 diff --git a/arch/mips/include/asm/thread_info.h b/arch/mips/include/asm/thread_info.h
2906 index ca97e0e..cd08920 100644
2907 --- a/arch/mips/include/asm/thread_info.h
2908 +++ b/arch/mips/include/asm/thread_info.h
2909 @@ -111,6 +111,8 @@ register struct thread_info *__current_thread_info __asm__("$28");
2910 #define TIF_32BIT_ADDR 23 /* 32-bit address space (o32/n32) */
2911 #define TIF_FPUBOUND 24 /* thread bound to FPU-full CPU set */
2912 #define TIF_LOAD_WATCH 25 /* If set, load watch registers */
2913 +/* li takes a 32bit immediate */
2914 +#define TIF_GRSEC_SETXID 29 /* update credentials on syscall entry/exit */
2915 #define TIF_SYSCALL_TRACE 31 /* syscall trace active */
2916
2917 #ifdef CONFIG_MIPS32_O32
2918 @@ -134,15 +136,18 @@ register struct thread_info *__current_thread_info __asm__("$28");
2919 #define _TIF_32BIT_ADDR (1<<TIF_32BIT_ADDR)
2920 #define _TIF_FPUBOUND (1<<TIF_FPUBOUND)
2921 #define _TIF_LOAD_WATCH (1<<TIF_LOAD_WATCH)
2922 +#define _TIF_GRSEC_SETXID (1<<TIF_GRSEC_SETXID)
2923 +
2924 +#define _TIF_SYSCALL_WORK (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | _TIF_GRSEC_SETXID)
2925
2926 /* work to do in syscall_trace_leave() */
2927 -#define _TIF_WORK_SYSCALL_EXIT (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT)
2928 +#define _TIF_WORK_SYSCALL_EXIT (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | _TIF_GRSEC_SETXID)
2929
2930 /* work to do on interrupt/exception return */
2931 #define _TIF_WORK_MASK (0x0000ffef & \
2932 ~(_TIF_SECCOMP | _TIF_SYSCALL_AUDIT))
2933 /* work to do on any return to u-space */
2934 -#define _TIF_ALLWORK_MASK (0x8000ffff & ~_TIF_SECCOMP)
2935 +#define _TIF_ALLWORK_MASK ((0x8000ffff & ~_TIF_SECCOMP) | _TIF_GRSEC_SETXID)
2936
2937 #endif /* __KERNEL__ */
2938
2939 diff --git a/arch/mips/kernel/binfmt_elfn32.c b/arch/mips/kernel/binfmt_elfn32.c
2940 index 9fdd8bc..4bd7f1a 100644
2941 --- a/arch/mips/kernel/binfmt_elfn32.c
2942 +++ b/arch/mips/kernel/binfmt_elfn32.c
2943 @@ -50,6 +50,13 @@ typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
2944 #undef ELF_ET_DYN_BASE
2945 #define ELF_ET_DYN_BASE (TASK32_SIZE / 3 * 2)
2946
2947 +#ifdef CONFIG_PAX_ASLR
2948 +#define PAX_ELF_ET_DYN_BASE (TASK_IS_32BIT_ADDR ? 0x00400000UL : 0x00400000UL)
2949 +
2950 +#define PAX_DELTA_MMAP_LEN (TASK_IS_32BIT_ADDR ? 27-PAGE_SHIFT : 36-PAGE_SHIFT)
2951 +#define PAX_DELTA_STACK_LEN (TASK_IS_32BIT_ADDR ? 27-PAGE_SHIFT : 36-PAGE_SHIFT)
2952 +#endif
2953 +
2954 #include <asm/processor.h>
2955 #include <linux/module.h>
2956 #include <linux/elfcore.h>
2957 diff --git a/arch/mips/kernel/binfmt_elfo32.c b/arch/mips/kernel/binfmt_elfo32.c
2958 index ff44823..97f8906 100644
2959 --- a/arch/mips/kernel/binfmt_elfo32.c
2960 +++ b/arch/mips/kernel/binfmt_elfo32.c
2961 @@ -52,6 +52,13 @@ typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
2962 #undef ELF_ET_DYN_BASE
2963 #define ELF_ET_DYN_BASE (TASK32_SIZE / 3 * 2)
2964
2965 +#ifdef CONFIG_PAX_ASLR
2966 +#define PAX_ELF_ET_DYN_BASE (TASK_IS_32BIT_ADDR ? 0x00400000UL : 0x00400000UL)
2967 +
2968 +#define PAX_DELTA_MMAP_LEN (TASK_IS_32BIT_ADDR ? 27-PAGE_SHIFT : 36-PAGE_SHIFT)
2969 +#define PAX_DELTA_STACK_LEN (TASK_IS_32BIT_ADDR ? 27-PAGE_SHIFT : 36-PAGE_SHIFT)
2970 +#endif
2971 +
2972 #include <asm/processor.h>
2973
2974 /*
2975 diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c
2976 index e9a5fd7..378809a 100644
2977 --- a/arch/mips/kernel/process.c
2978 +++ b/arch/mips/kernel/process.c
2979 @@ -480,15 +480,3 @@ unsigned long get_wchan(struct task_struct *task)
2980 out:
2981 return pc;
2982 }
2983 -
2984 -/*
2985 - * Don't forget that the stack pointer must be aligned on a 8 bytes
2986 - * boundary for 32-bits ABI and 16 bytes for 64-bits ABI.
2987 - */
2988 -unsigned long arch_align_stack(unsigned long sp)
2989 -{
2990 - if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space)
2991 - sp -= get_random_int() & ~PAGE_MASK;
2992 -
2993 - return sp & ALMASK;
2994 -}
2995 diff --git a/arch/mips/kernel/ptrace.c b/arch/mips/kernel/ptrace.c
2996 index 4812c6d..2069554 100644
2997 --- a/arch/mips/kernel/ptrace.c
2998 +++ b/arch/mips/kernel/ptrace.c
2999 @@ -528,6 +528,10 @@ static inline int audit_arch(void)
3000 return arch;
3001 }
3002
3003 +#ifdef CONFIG_GRKERNSEC_SETXID
3004 +extern void gr_delayed_cred_worker(void);
3005 +#endif
3006 +
3007 /*
3008 * Notification of system call entry/exit
3009 * - triggered by current->work.syscall_trace
3010 @@ -537,6 +541,11 @@ asmlinkage void syscall_trace_enter(struct pt_regs *regs)
3011 /* do the secure computing check first */
3012 secure_computing_strict(regs->regs[2]);
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 if (!(current->ptrace & PT_PTRACED))
3020 goto out;
3021
3022 diff --git a/arch/mips/kernel/scall32-o32.S b/arch/mips/kernel/scall32-o32.S
3023 index a632bc1..0b77c7c 100644
3024 --- a/arch/mips/kernel/scall32-o32.S
3025 +++ b/arch/mips/kernel/scall32-o32.S
3026 @@ -52,7 +52,7 @@ NESTED(handle_sys, PT_SIZE, sp)
3027
3028 stack_done:
3029 lw t0, TI_FLAGS($28) # syscall tracing enabled?
3030 - li t1, _TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT
3031 + li t1, _TIF_SYSCALL_WORK
3032 and t0, t1
3033 bnez t0, syscall_trace_entry # -> yes
3034
3035 diff --git a/arch/mips/kernel/scall64-64.S b/arch/mips/kernel/scall64-64.S
3036 index 3b5a5e9..e1ee86d 100644
3037 --- a/arch/mips/kernel/scall64-64.S
3038 +++ b/arch/mips/kernel/scall64-64.S
3039 @@ -54,7 +54,7 @@ NESTED(handle_sys64, PT_SIZE, sp)
3040
3041 sd a3, PT_R26(sp) # save a3 for syscall restarting
3042
3043 - li t1, _TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT
3044 + li t1, _TIF_SYSCALL_WORK
3045 LONG_L t0, TI_FLAGS($28) # syscall tracing enabled?
3046 and t0, t1, t0
3047 bnez t0, syscall_trace_entry
3048 diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S
3049 index 6be6f70..1859577 100644
3050 --- a/arch/mips/kernel/scall64-n32.S
3051 +++ b/arch/mips/kernel/scall64-n32.S
3052 @@ -53,7 +53,7 @@ NESTED(handle_sysn32, PT_SIZE, sp)
3053
3054 sd a3, PT_R26(sp) # save a3 for syscall restarting
3055
3056 - li t1, _TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT
3057 + li t1, _TIF_SYSCALL_WORK
3058 LONG_L t0, TI_FLAGS($28) # syscall tracing enabled?
3059 and t0, t1, t0
3060 bnez t0, n32_syscall_trace_entry
3061 diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S
3062 index 5422855..74e63a3 100644
3063 --- a/arch/mips/kernel/scall64-o32.S
3064 +++ b/arch/mips/kernel/scall64-o32.S
3065 @@ -81,7 +81,7 @@ NESTED(handle_sys, PT_SIZE, sp)
3066 PTR 4b, bad_stack
3067 .previous
3068
3069 - li t1, _TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT
3070 + li t1, _TIF_SYSCALL_WORK
3071 LONG_L t0, TI_FLAGS($28) # syscall tracing enabled?
3072 and t0, t1, t0
3073 bnez t0, trace_a_syscall
3074 diff --git a/arch/mips/mm/fault.c b/arch/mips/mm/fault.c
3075 index c14f6df..537e729 100644
3076 --- a/arch/mips/mm/fault.c
3077 +++ b/arch/mips/mm/fault.c
3078 @@ -27,6 +27,23 @@
3079 #include <asm/highmem.h> /* For VMALLOC_END */
3080 #include <linux/kdebug.h>
3081
3082 +#ifdef CONFIG_PAX_PAGEEXEC
3083 +void pax_report_insns(struct pt_regs *regs, void *pc, void *sp)
3084 +{
3085 + unsigned long i;
3086 +
3087 + printk(KERN_ERR "PAX: bytes at PC: ");
3088 + for (i = 0; i < 5; i++) {
3089 + unsigned int c;
3090 + if (get_user(c, (unsigned int *)pc+i))
3091 + printk(KERN_CONT "???????? ");
3092 + else
3093 + printk(KERN_CONT "%08x ", c);
3094 + }
3095 + printk("\n");
3096 +}
3097 +#endif
3098 +
3099 /*
3100 * This routine handles page faults. It determines the address,
3101 * and the problem, and then passes it off to one of the appropriate
3102 diff --git a/arch/mips/mm/mmap.c b/arch/mips/mm/mmap.c
3103 index 302d779..7d35bf8 100644
3104 --- a/arch/mips/mm/mmap.c
3105 +++ b/arch/mips/mm/mmap.c
3106 @@ -95,6 +95,11 @@ static unsigned long arch_get_unmapped_area_common(struct file *filp,
3107 do_color_align = 1;
3108
3109 /* requesting a specific address */
3110 +
3111 +#ifdef CONFIG_PAX_RANDMMAP
3112 + if (!(current->mm->pax_flags & MF_PAX_RANDMMAP))
3113 +#endif
3114 +
3115 if (addr) {
3116 if (do_color_align)
3117 addr = COLOUR_ALIGN(addr, pgoff);
3118 @@ -102,8 +107,7 @@ static unsigned long arch_get_unmapped_area_common(struct file *filp,
3119 addr = PAGE_ALIGN(addr);
3120
3121 vma = find_vma(mm, addr);
3122 - if (TASK_SIZE - len >= addr &&
3123 - (!vma || addr + len <= vma->vm_start))
3124 + if (TASK_SIZE - len >= addr && check_heap_stack_gap(vmm, addr, len))
3125 return addr;
3126 }
3127
3128 @@ -118,7 +122,7 @@ static unsigned long arch_get_unmapped_area_common(struct file *filp,
3129 /* At this point: (!vma || addr < vma->vm_end). */
3130 if (TASK_SIZE - len < addr)
3131 return -ENOMEM;
3132 - if (!vma || addr + len <= vma->vm_start)
3133 + if (check_heap_stack_gap(vmm, addr, len))
3134 return addr;
3135 addr = vma->vm_end;
3136 if (do_color_align)
3137 @@ -145,7 +149,7 @@ static unsigned long arch_get_unmapped_area_common(struct file *filp,
3138 /* make sure it can fit in the remaining address space */
3139 if (likely(addr > len)) {
3140 vma = find_vma(mm, addr - len);
3141 - if (!vma || addr <= vma->vm_start) {
3142 + if (check_heap_stack_gap(vmm, addr - len, len))
3143 /* cache the address as a hint for next time */
3144 return mm->free_area_cache = addr - len;
3145 }
3146 @@ -165,7 +169,7 @@ static unsigned long arch_get_unmapped_area_common(struct file *filp,
3147 * return with success:
3148 */
3149 vma = find_vma(mm, addr);
3150 - if (likely(!vma || addr + len <= vma->vm_start)) {
3151 + if (check_heap_stack_gap(vmm, addr, len)) {
3152 /* cache the address as a hint for next time */
3153 return mm->free_area_cache = addr;
3154 }
3155 @@ -242,30 +246,3 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
3156 mm->unmap_area = arch_unmap_area_topdown;
3157 }
3158 }
3159 -
3160 -static inline unsigned long brk_rnd(void)
3161 -{
3162 - unsigned long rnd = get_random_int();
3163 -
3164 - rnd = rnd << PAGE_SHIFT;
3165 - /* 8MB for 32bit, 256MB for 64bit */
3166 - if (TASK_IS_32BIT_ADDR)
3167 - rnd = rnd & 0x7ffffful;
3168 - else
3169 - rnd = rnd & 0xffffffful;
3170 -
3171 - return rnd;
3172 -}
3173 -
3174 -unsigned long arch_randomize_brk(struct mm_struct *mm)
3175 -{
3176 - unsigned long base = mm->brk;
3177 - unsigned long ret;
3178 -
3179 - ret = PAGE_ALIGN(base + brk_rnd());
3180 -
3181 - if (ret < mm->brk)
3182 - return mm->brk;
3183 -
3184 - return ret;
3185 -}
3186 diff --git a/arch/mn10300/proc-mn103e010/include/proc/cache.h b/arch/mn10300/proc-mn103e010/include/proc/cache.h
3187 index 967d144..db12197 100644
3188 --- a/arch/mn10300/proc-mn103e010/include/proc/cache.h
3189 +++ b/arch/mn10300/proc-mn103e010/include/proc/cache.h
3190 @@ -11,12 +11,14 @@
3191 #ifndef _ASM_PROC_CACHE_H
3192 #define _ASM_PROC_CACHE_H
3193
3194 +#include <linux/const.h>
3195 +
3196 /* L1 cache */
3197
3198 #define L1_CACHE_NWAYS 4 /* number of ways in caches */
3199 #define L1_CACHE_NENTRIES 256 /* number of entries in each way */
3200 -#define L1_CACHE_BYTES 16 /* bytes per entry */
3201 #define L1_CACHE_SHIFT 4 /* shift for bytes per entry */
3202 +#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT) /* bytes per entry */
3203 #define L1_CACHE_WAYDISP 0x1000 /* displacement of one way from the next */
3204
3205 #define L1_CACHE_TAG_VALID 0x00000001 /* cache tag valid bit */
3206 diff --git a/arch/mn10300/proc-mn2ws0050/include/proc/cache.h b/arch/mn10300/proc-mn2ws0050/include/proc/cache.h
3207 index bcb5df2..84fabd2 100644
3208 --- a/arch/mn10300/proc-mn2ws0050/include/proc/cache.h
3209 +++ b/arch/mn10300/proc-mn2ws0050/include/proc/cache.h
3210 @@ -16,13 +16,15 @@
3211 #ifndef _ASM_PROC_CACHE_H
3212 #define _ASM_PROC_CACHE_H
3213
3214 +#include <linux/const.h>
3215 +
3216 /*
3217 * L1 cache
3218 */
3219 #define L1_CACHE_NWAYS 4 /* number of ways in caches */
3220 #define L1_CACHE_NENTRIES 128 /* number of entries in each way */
3221 -#define L1_CACHE_BYTES 32 /* bytes per entry */
3222 #define L1_CACHE_SHIFT 5 /* shift for bytes per entry */
3223 +#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT) /* bytes per entry */
3224 #define L1_CACHE_WAYDISP 0x1000 /* distance from one way to the next */
3225
3226 #define L1_CACHE_TAG_VALID 0x00000001 /* cache tag valid bit */
3227 diff --git a/arch/openrisc/include/asm/cache.h b/arch/openrisc/include/asm/cache.h
3228 index 4ce7a01..449202a 100644
3229 --- a/arch/openrisc/include/asm/cache.h
3230 +++ b/arch/openrisc/include/asm/cache.h
3231 @@ -19,11 +19,13 @@
3232 #ifndef __ASM_OPENRISC_CACHE_H
3233 #define __ASM_OPENRISC_CACHE_H
3234
3235 +#include <linux/const.h>
3236 +
3237 /* FIXME: How can we replace these with values from the CPU...
3238 * they shouldn't be hard-coded!
3239 */
3240
3241 -#define L1_CACHE_BYTES 16
3242 #define L1_CACHE_SHIFT 4
3243 +#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
3244
3245 #endif /* __ASM_OPENRISC_CACHE_H */
3246 diff --git a/arch/parisc/include/asm/atomic.h b/arch/parisc/include/asm/atomic.h
3247 index 6c6defc..d30653d 100644
3248 --- a/arch/parisc/include/asm/atomic.h
3249 +++ b/arch/parisc/include/asm/atomic.h
3250 @@ -229,6 +229,16 @@ static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u)
3251
3252 #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
3253
3254 +#define atomic64_read_unchecked(v) atomic64_read(v)
3255 +#define atomic64_set_unchecked(v, i) atomic64_set((v), (i))
3256 +#define atomic64_add_unchecked(a, v) atomic64_add((a), (v))
3257 +#define atomic64_add_return_unchecked(a, v) atomic64_add_return((a), (v))
3258 +#define atomic64_sub_unchecked(a, v) atomic64_sub((a), (v))
3259 +#define atomic64_inc_unchecked(v) atomic64_inc(v)
3260 +#define atomic64_inc_return_unchecked(v) atomic64_inc_return(v)
3261 +#define atomic64_dec_unchecked(v) atomic64_dec(v)
3262 +#define atomic64_cmpxchg_unchecked(v, o, n) atomic64_cmpxchg((v), (o), (n))
3263 +
3264 #endif /* !CONFIG_64BIT */
3265
3266
3267 diff --git a/arch/parisc/include/asm/cache.h b/arch/parisc/include/asm/cache.h
3268 index 47f11c7..3420df2 100644
3269 --- a/arch/parisc/include/asm/cache.h
3270 +++ b/arch/parisc/include/asm/cache.h
3271 @@ -5,6 +5,7 @@
3272 #ifndef __ARCH_PARISC_CACHE_H
3273 #define __ARCH_PARISC_CACHE_H
3274
3275 +#include <linux/const.h>
3276
3277 /*
3278 * PA 2.0 processors have 64-byte cachelines; PA 1.1 processors have
3279 @@ -15,13 +16,13 @@
3280 * just ruin performance.
3281 */
3282 #ifdef CONFIG_PA20
3283 -#define L1_CACHE_BYTES 64
3284 #define L1_CACHE_SHIFT 6
3285 #else
3286 -#define L1_CACHE_BYTES 32
3287 #define L1_CACHE_SHIFT 5
3288 #endif
3289
3290 +#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
3291 +
3292 #ifndef __ASSEMBLY__
3293
3294 #define SMP_CACHE_BYTES L1_CACHE_BYTES
3295 diff --git a/arch/parisc/include/asm/elf.h b/arch/parisc/include/asm/elf.h
3296 index 19f6cb1..6c78cf2 100644
3297 --- a/arch/parisc/include/asm/elf.h
3298 +++ b/arch/parisc/include/asm/elf.h
3299 @@ -342,6 +342,13 @@ struct pt_regs; /* forward declaration... */
3300
3301 #define ELF_ET_DYN_BASE (TASK_UNMAPPED_BASE + 0x01000000)
3302
3303 +#ifdef CONFIG_PAX_ASLR
3304 +#define PAX_ELF_ET_DYN_BASE 0x10000UL
3305 +
3306 +#define PAX_DELTA_MMAP_LEN 16
3307 +#define PAX_DELTA_STACK_LEN 16
3308 +#endif
3309 +
3310 /* This yields a mask that user programs can use to figure out what
3311 instruction set this CPU supports. This could be done in user space,
3312 but it's not easy, and we've already done it here. */
3313 diff --git a/arch/parisc/include/asm/pgalloc.h b/arch/parisc/include/asm/pgalloc.h
3314 index fc987a1..6e068ef 100644
3315 --- a/arch/parisc/include/asm/pgalloc.h
3316 +++ b/arch/parisc/include/asm/pgalloc.h
3317 @@ -61,6 +61,11 @@ static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmd)
3318 (__u32)(__pa((unsigned long)pmd) >> PxD_VALUE_SHIFT));
3319 }
3320
3321 +static inline void pgd_populate_kernel(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmd)
3322 +{
3323 + pgd_populate(mm, pgd, pmd);
3324 +}
3325 +
3326 static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address)
3327 {
3328 pmd_t *pmd = (pmd_t *)__get_free_pages(GFP_KERNEL|__GFP_REPEAT,
3329 @@ -93,6 +98,7 @@ static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
3330 #define pmd_alloc_one(mm, addr) ({ BUG(); ((pmd_t *)2); })
3331 #define pmd_free(mm, x) do { } while (0)
3332 #define pgd_populate(mm, pmd, pte) BUG()
3333 +#define pgd_populate_kernel(mm, pmd, pte) BUG()
3334
3335 #endif
3336
3337 diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h
3338 index ee99f23..802b0a1 100644
3339 --- a/arch/parisc/include/asm/pgtable.h
3340 +++ b/arch/parisc/include/asm/pgtable.h
3341 @@ -212,6 +212,17 @@ struct vm_area_struct;
3342 #define PAGE_EXECREAD __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_EXEC |_PAGE_ACCESSED)
3343 #define PAGE_COPY PAGE_EXECREAD
3344 #define PAGE_RWX __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_WRITE | _PAGE_EXEC |_PAGE_ACCESSED)
3345 +
3346 +#ifdef CONFIG_PAX_PAGEEXEC
3347 +# define PAGE_SHARED_NOEXEC __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_WRITE | _PAGE_ACCESSED)
3348 +# define PAGE_COPY_NOEXEC __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_ACCESSED)
3349 +# define PAGE_READONLY_NOEXEC __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_ACCESSED)
3350 +#else
3351 +# define PAGE_SHARED_NOEXEC PAGE_SHARED
3352 +# define PAGE_COPY_NOEXEC PAGE_COPY
3353 +# define PAGE_READONLY_NOEXEC PAGE_READONLY
3354 +#endif
3355 +
3356 #define PAGE_KERNEL __pgprot(_PAGE_KERNEL)
3357 #define PAGE_KERNEL_EXEC __pgprot(_PAGE_KERNEL_EXEC)
3358 #define PAGE_KERNEL_RWX __pgprot(_PAGE_KERNEL_RWX)
3359 diff --git a/arch/parisc/include/asm/uaccess.h b/arch/parisc/include/asm/uaccess.h
3360 index 4ba2c93..f5e3974 100644
3361 --- a/arch/parisc/include/asm/uaccess.h
3362 +++ b/arch/parisc/include/asm/uaccess.h
3363 @@ -251,10 +251,10 @@ static inline unsigned long __must_check copy_from_user(void *to,
3364 const void __user *from,
3365 unsigned long n)
3366 {
3367 - int sz = __compiletime_object_size(to);
3368 + size_t sz = __compiletime_object_size(to);
3369 int ret = -EFAULT;
3370
3371 - if (likely(sz == -1 || !__builtin_constant_p(n) || sz >= n))
3372 + if (likely(sz == (size_t)-1 || !__builtin_constant_p(n) || sz >= n))
3373 ret = __copy_from_user(to, from, n);
3374 else
3375 copy_from_user_overflow();
3376 diff --git a/arch/parisc/kernel/module.c b/arch/parisc/kernel/module.c
3377 index 5e34ccf..672bc9c 100644
3378 --- a/arch/parisc/kernel/module.c
3379 +++ b/arch/parisc/kernel/module.c
3380 @@ -98,16 +98,38 @@
3381
3382 /* three functions to determine where in the module core
3383 * or init pieces the location is */
3384 +static inline int in_init_rx(struct module *me, void *loc)
3385 +{
3386 + return (loc >= me->module_init_rx &&
3387 + loc < (me->module_init_rx + me->init_size_rx));
3388 +}
3389 +
3390 +static inline int in_init_rw(struct module *me, void *loc)
3391 +{
3392 + return (loc >= me->module_init_rw &&
3393 + loc < (me->module_init_rw + me->init_size_rw));
3394 +}
3395 +
3396 static inline int in_init(struct module *me, void *loc)
3397 {
3398 - return (loc >= me->module_init &&
3399 - loc <= (me->module_init + me->init_size));
3400 + return in_init_rx(me, loc) || in_init_rw(me, loc);
3401 +}
3402 +
3403 +static inline int in_core_rx(struct module *me, void *loc)
3404 +{
3405 + return (loc >= me->module_core_rx &&
3406 + loc < (me->module_core_rx + me->core_size_rx));
3407 +}
3408 +
3409 +static inline int in_core_rw(struct module *me, void *loc)
3410 +{
3411 + return (loc >= me->module_core_rw &&
3412 + loc < (me->module_core_rw + me->core_size_rw));
3413 }
3414
3415 static inline int in_core(struct module *me, void *loc)
3416 {
3417 - return (loc >= me->module_core &&
3418 - loc <= (me->module_core + me->core_size));
3419 + return in_core_rx(me, loc) || in_core_rw(me, loc);
3420 }
3421
3422 static inline int in_local(struct module *me, void *loc)
3423 @@ -373,13 +395,13 @@ int module_frob_arch_sections(CONST Elf_Ehdr *hdr,
3424 }
3425
3426 /* align things a bit */
3427 - me->core_size = ALIGN(me->core_size, 16);
3428 - me->arch.got_offset = me->core_size;
3429 - me->core_size += gots * sizeof(struct got_entry);
3430 + me->core_size_rw = ALIGN(me->core_size_rw, 16);
3431 + me->arch.got_offset = me->core_size_rw;
3432 + me->core_size_rw += gots * sizeof(struct got_entry);
3433
3434 - me->core_size = ALIGN(me->core_size, 16);
3435 - me->arch.fdesc_offset = me->core_size;
3436 - me->core_size += fdescs * sizeof(Elf_Fdesc);
3437 + me->core_size_rw = ALIGN(me->core_size_rw, 16);
3438 + me->arch.fdesc_offset = me->core_size_rw;
3439 + me->core_size_rw += fdescs * sizeof(Elf_Fdesc);
3440
3441 me->arch.got_max = gots;
3442 me->arch.fdesc_max = fdescs;
3443 @@ -397,7 +419,7 @@ static Elf64_Word get_got(struct module *me, unsigned long value, long addend)
3444
3445 BUG_ON(value == 0);
3446
3447 - got = me->module_core + me->arch.got_offset;
3448 + got = me->module_core_rw + me->arch.got_offset;
3449 for (i = 0; got[i].addr; i++)
3450 if (got[i].addr == value)
3451 goto out;
3452 @@ -415,7 +437,7 @@ static Elf64_Word get_got(struct module *me, unsigned long value, long addend)
3453 #ifdef CONFIG_64BIT
3454 static Elf_Addr get_fdesc(struct module *me, unsigned long value)
3455 {
3456 - Elf_Fdesc *fdesc = me->module_core + me->arch.fdesc_offset;
3457 + Elf_Fdesc *fdesc = me->module_core_rw + me->arch.fdesc_offset;
3458
3459 if (!value) {
3460 printk(KERN_ERR "%s: zero OPD requested!\n", me->name);
3461 @@ -433,7 +455,7 @@ static Elf_Addr get_fdesc(struct module *me, unsigned long value)
3462
3463 /* Create new one */
3464 fdesc->addr = value;
3465 - fdesc->gp = (Elf_Addr)me->module_core + me->arch.got_offset;
3466 + fdesc->gp = (Elf_Addr)me->module_core_rw + me->arch.got_offset;
3467 return (Elf_Addr)fdesc;
3468 }
3469 #endif /* CONFIG_64BIT */
3470 @@ -845,7 +867,7 @@ register_unwind_table(struct module *me,
3471
3472 table = (unsigned char *)sechdrs[me->arch.unwind_section].sh_addr;
3473 end = table + sechdrs[me->arch.unwind_section].sh_size;
3474 - gp = (Elf_Addr)me->module_core + me->arch.got_offset;
3475 + gp = (Elf_Addr)me->module_core_rw + me->arch.got_offset;
3476
3477 DEBUGP("register_unwind_table(), sect = %d at 0x%p - 0x%p (gp=0x%lx)\n",
3478 me->arch.unwind_section, table, end, gp);
3479 diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
3480 index c9b9322..02d8940 100644
3481 --- a/arch/parisc/kernel/sys_parisc.c
3482 +++ b/arch/parisc/kernel/sys_parisc.c
3483 @@ -43,7 +43,7 @@ static unsigned long get_unshared_area(unsigned long addr, unsigned long len)
3484 /* At this point: (!vma || addr < vma->vm_end). */
3485 if (TASK_SIZE - len < addr)
3486 return -ENOMEM;
3487 - if (!vma || addr + len <= vma->vm_start)
3488 + if (check_heap_stack_gap(vma, addr, len))
3489 return addr;
3490 addr = vma->vm_end;
3491 }
3492 @@ -79,7 +79,7 @@ static unsigned long get_shared_area(struct address_space *mapping,
3493 /* At this point: (!vma || addr < vma->vm_end). */
3494 if (TASK_SIZE - len < addr)
3495 return -ENOMEM;
3496 - if (!vma || addr + len <= vma->vm_start)
3497 + if (check_heap_stack_gap(vma, addr, len))
3498 return addr;
3499 addr = DCACHE_ALIGN(vma->vm_end - offset) + offset;
3500 if (addr < vma->vm_end) /* handle wraparound */
3501 @@ -98,7 +98,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
3502 if (flags & MAP_FIXED)
3503 return addr;
3504 if (!addr)
3505 - addr = TASK_UNMAPPED_BASE;
3506 + addr = current->mm->mmap_base;
3507
3508 if (filp) {
3509 addr = get_shared_area(filp->f_mapping, addr, len, pgoff);
3510 diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
3511 index 45ba99f..8e22c33 100644
3512 --- a/arch/parisc/kernel/traps.c
3513 +++ b/arch/parisc/kernel/traps.c
3514 @@ -732,9 +732,7 @@ void notrace handle_interruption(int code, struct pt_regs *regs)
3515
3516 down_read(&current->mm->mmap_sem);
3517 vma = find_vma(current->mm,regs->iaoq[0]);
3518 - if (vma && (regs->iaoq[0] >= vma->vm_start)
3519 - && (vma->vm_flags & VM_EXEC)) {
3520 -
3521 + if (vma && (regs->iaoq[0] >= vma->vm_start)) {
3522 fault_address = regs->iaoq[0];
3523 fault_space = regs->iasq[0];
3524
3525 diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c
3526 index 18162ce..94de376 100644
3527 --- a/arch/parisc/mm/fault.c
3528 +++ b/arch/parisc/mm/fault.c
3529 @@ -15,6 +15,7 @@
3530 #include <linux/sched.h>
3531 #include <linux/interrupt.h>
3532 #include <linux/module.h>
3533 +#include <linux/unistd.h>
3534
3535 #include <asm/uaccess.h>
3536 #include <asm/traps.h>
3537 @@ -52,7 +53,7 @@ DEFINE_PER_CPU(struct exception_data, exception_data);
3538 static unsigned long
3539 parisc_acctyp(unsigned long code, unsigned int inst)
3540 {
3541 - if (code == 6 || code == 16)
3542 + if (code == 6 || code == 7 || code == 16)
3543 return VM_EXEC;
3544
3545 switch (inst & 0xf0000000) {
3546 @@ -138,6 +139,116 @@ parisc_acctyp(unsigned long code, unsigned int inst)
3547 }
3548 #endif
3549
3550 +#ifdef CONFIG_PAX_PAGEEXEC
3551 +/*
3552 + * PaX: decide what to do with offenders (instruction_pointer(regs) = fault address)
3553 + *
3554 + * returns 1 when task should be killed
3555 + * 2 when rt_sigreturn trampoline was detected
3556 + * 3 when unpatched PLT trampoline was detected
3557 + */
3558 +static int pax_handle_fetch_fault(struct pt_regs *regs)
3559 +{
3560 +
3561 +#ifdef CONFIG_PAX_EMUPLT
3562 + int err;
3563 +
3564 + do { /* PaX: unpatched PLT emulation */
3565 + unsigned int bl, depwi;
3566 +
3567 + err = get_user(bl, (unsigned int *)instruction_pointer(regs));
3568 + err |= get_user(depwi, (unsigned int *)(instruction_pointer(regs)+4));
3569 +
3570 + if (err)
3571 + break;
3572 +
3573 + if (bl == 0xEA9F1FDDU && depwi == 0xD6801C1EU) {
3574 + unsigned int ldw, bv, ldw2, addr = instruction_pointer(regs)-12;
3575 +
3576 + err = get_user(ldw, (unsigned int *)addr);
3577 + err |= get_user(bv, (unsigned int *)(addr+4));
3578 + err |= get_user(ldw2, (unsigned int *)(addr+8));
3579 +
3580 + if (err)
3581 + break;
3582 +
3583 + if (ldw == 0x0E801096U &&
3584 + bv == 0xEAC0C000U &&
3585 + ldw2 == 0x0E881095U)
3586 + {
3587 + unsigned int resolver, map;
3588 +
3589 + err = get_user(resolver, (unsigned int *)(instruction_pointer(regs)+8));
3590 + err |= get_user(map, (unsigned int *)(instruction_pointer(regs)+12));
3591 + if (err)
3592 + break;
3593 +
3594 + regs->gr[20] = instruction_pointer(regs)+8;
3595 + regs->gr[21] = map;
3596 + regs->gr[22] = resolver;
3597 + regs->iaoq[0] = resolver | 3UL;
3598 + regs->iaoq[1] = regs->iaoq[0] + 4;
3599 + return 3;
3600 + }
3601 + }
3602 + } while (0);
3603 +#endif
3604 +
3605 +#ifdef CONFIG_PAX_EMUTRAMP
3606 +
3607 +#ifndef CONFIG_PAX_EMUSIGRT
3608 + if (!(current->mm->pax_flags & MF_PAX_EMUTRAMP))
3609 + return 1;
3610 +#endif
3611 +
3612 + do { /* PaX: rt_sigreturn emulation */
3613 + unsigned int ldi1, ldi2, bel, nop;
3614 +
3615 + err = get_user(ldi1, (unsigned int *)instruction_pointer(regs));
3616 + err |= get_user(ldi2, (unsigned int *)(instruction_pointer(regs)+4));
3617 + err |= get_user(bel, (unsigned int *)(instruction_pointer(regs)+8));
3618 + err |= get_user(nop, (unsigned int *)(instruction_pointer(regs)+12));
3619 +
3620 + if (err)
3621 + break;
3622 +
3623 + if ((ldi1 == 0x34190000U || ldi1 == 0x34190002U) &&
3624 + ldi2 == 0x3414015AU &&
3625 + bel == 0xE4008200U &&
3626 + nop == 0x08000240U)
3627 + {
3628 + regs->gr[25] = (ldi1 & 2) >> 1;
3629 + regs->gr[20] = __NR_rt_sigreturn;
3630 + regs->gr[31] = regs->iaoq[1] + 16;
3631 + regs->sr[0] = regs->iasq[1];
3632 + regs->iaoq[0] = 0x100UL;
3633 + regs->iaoq[1] = regs->iaoq[0] + 4;
3634 + regs->iasq[0] = regs->sr[2];
3635 + regs->iasq[1] = regs->sr[2];
3636 + return 2;
3637 + }
3638 + } while (0);
3639 +#endif
3640 +
3641 + return 1;
3642 +}
3643 +
3644 +void pax_report_insns(struct pt_regs *regs, void *pc, void *sp)
3645 +{
3646 + unsigned long i;
3647 +
3648 + printk(KERN_ERR "PAX: bytes at PC: ");
3649 + for (i = 0; i < 5; i++) {
3650 + unsigned int c;
3651 + if (get_user(c, (unsigned int *)pc+i))
3652 + printk(KERN_CONT "???????? ");
3653 + else
3654 + printk(KERN_CONT "%08x ", c);
3655 + }
3656 + printk("\n");
3657 +}
3658 +#endif
3659 +
3660 int fixup_exception(struct pt_regs *regs)
3661 {
3662 const struct exception_table_entry *fix;
3663 @@ -192,8 +303,33 @@ good_area:
3664
3665 acc_type = parisc_acctyp(code,regs->iir);
3666
3667 - if ((vma->vm_flags & acc_type) != acc_type)
3668 + if ((vma->vm_flags & acc_type) != acc_type) {
3669 +
3670 +#ifdef CONFIG_PAX_PAGEEXEC
3671 + if ((mm->pax_flags & MF_PAX_PAGEEXEC) && (acc_type & VM_EXEC) &&
3672 + (address & ~3UL) == instruction_pointer(regs))
3673 + {
3674 + up_read(&mm->mmap_sem);
3675 + switch (pax_handle_fetch_fault(regs)) {
3676 +
3677 +#ifdef CONFIG_PAX_EMUPLT
3678 + case 3:
3679 + return;
3680 +#endif
3681 +
3682 +#ifdef CONFIG_PAX_EMUTRAMP
3683 + case 2:
3684 + return;
3685 +#endif
3686 +
3687 + }
3688 + pax_report_fault(regs, (void *)instruction_pointer(regs), (void *)regs->gr[30]);
3689 + do_group_exit(SIGKILL);
3690 + }
3691 +#endif
3692 +
3693 goto bad_area;
3694 + }
3695
3696 /*
3697 * If for any reason at all we couldn't handle the fault, make
3698 diff --git a/arch/powerpc/include/asm/atomic.h b/arch/powerpc/include/asm/atomic.h
3699 index da29032..f76c24c 100644
3700 --- a/arch/powerpc/include/asm/atomic.h
3701 +++ b/arch/powerpc/include/asm/atomic.h
3702 @@ -522,6 +522,16 @@ static __inline__ long atomic64_inc_not_zero(atomic64_t *v)
3703 return t1;
3704 }
3705
3706 +#define atomic64_read_unchecked(v) atomic64_read(v)
3707 +#define atomic64_set_unchecked(v, i) atomic64_set((v), (i))
3708 +#define atomic64_add_unchecked(a, v) atomic64_add((a), (v))
3709 +#define atomic64_add_return_unchecked(a, v) atomic64_add_return((a), (v))
3710 +#define atomic64_sub_unchecked(a, v) atomic64_sub((a), (v))
3711 +#define atomic64_inc_unchecked(v) atomic64_inc(v)
3712 +#define atomic64_inc_return_unchecked(v) atomic64_inc_return(v)
3713 +#define atomic64_dec_unchecked(v) atomic64_dec(v)
3714 +#define atomic64_cmpxchg_unchecked(v, o, n) atomic64_cmpxchg((v), (o), (n))
3715 +
3716 #endif /* __powerpc64__ */
3717
3718 #endif /* __KERNEL__ */
3719 diff --git a/arch/powerpc/include/asm/cache.h b/arch/powerpc/include/asm/cache.h
3720 index 9e495c9..b6878e5 100644
3721 --- a/arch/powerpc/include/asm/cache.h
3722 +++ b/arch/powerpc/include/asm/cache.h
3723 @@ -3,6 +3,7 @@
3724
3725 #ifdef __KERNEL__
3726
3727 +#include <linux/const.h>
3728
3729 /* bytes per L1 cache line */
3730 #if defined(CONFIG_8xx) || defined(CONFIG_403GCX)
3731 @@ -22,7 +23,7 @@
3732 #define L1_CACHE_SHIFT 7
3733 #endif
3734
3735 -#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
3736 +#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
3737
3738 #define SMP_CACHE_BYTES L1_CACHE_BYTES
3739
3740 diff --git a/arch/powerpc/include/asm/elf.h b/arch/powerpc/include/asm/elf.h
3741 index 3bf9cca..e7457d0 100644
3742 --- a/arch/powerpc/include/asm/elf.h
3743 +++ b/arch/powerpc/include/asm/elf.h
3744 @@ -178,8 +178,19 @@ typedef elf_fpreg_t elf_vsrreghalf_t32[ELF_NVSRHALFREG];
3745 the loader. We need to make sure that it is out of the way of the program
3746 that it will "exec", and that there is sufficient room for the brk. */
3747
3748 -extern unsigned long randomize_et_dyn(unsigned long base);
3749 -#define ELF_ET_DYN_BASE (randomize_et_dyn(0x20000000))
3750 +#define ELF_ET_DYN_BASE (0x20000000)
3751 +
3752 +#ifdef CONFIG_PAX_ASLR
3753 +#define PAX_ELF_ET_DYN_BASE (0x10000000UL)
3754 +
3755 +#ifdef __powerpc64__
3756 +#define PAX_DELTA_MMAP_LEN (is_32bit_task() ? 16 : 28)
3757 +#define PAX_DELTA_STACK_LEN (is_32bit_task() ? 16 : 28)
3758 +#else
3759 +#define PAX_DELTA_MMAP_LEN 15
3760 +#define PAX_DELTA_STACK_LEN 15
3761 +#endif
3762 +#endif
3763
3764 /*
3765 * Our registers are always unsigned longs, whether we're a 32 bit
3766 @@ -274,9 +285,6 @@ extern int arch_setup_additional_pages(struct linux_binprm *bprm,
3767 (0x7ff >> (PAGE_SHIFT - 12)) : \
3768 (0x3ffff >> (PAGE_SHIFT - 12)))
3769
3770 -extern unsigned long arch_randomize_brk(struct mm_struct *mm);
3771 -#define arch_randomize_brk arch_randomize_brk
3772 -
3773 #endif /* __KERNEL__ */
3774
3775 /*
3776 diff --git a/arch/powerpc/include/asm/exec.h b/arch/powerpc/include/asm/exec.h
3777 index 8196e9c..d83a9f3 100644
3778 --- a/arch/powerpc/include/asm/exec.h
3779 +++ b/arch/powerpc/include/asm/exec.h
3780 @@ -4,6 +4,6 @@
3781 #ifndef _ASM_POWERPC_EXEC_H
3782 #define _ASM_POWERPC_EXEC_H
3783
3784 -extern unsigned long arch_align_stack(unsigned long sp);
3785 +#define arch_align_stack(x) ((x) & ~0xfUL)
3786
3787 #endif /* _ASM_POWERPC_EXEC_H */
3788 diff --git a/arch/powerpc/include/asm/kmap_types.h b/arch/powerpc/include/asm/kmap_types.h
3789 index bca8fdc..61e9580 100644
3790 --- a/arch/powerpc/include/asm/kmap_types.h
3791 +++ b/arch/powerpc/include/asm/kmap_types.h
3792 @@ -27,6 +27,7 @@ enum km_type {
3793 KM_PPC_SYNC_PAGE,
3794 KM_PPC_SYNC_ICACHE,
3795 KM_KDB,
3796 + KM_CLEARPAGE,
3797 KM_TYPE_NR
3798 };
3799
3800 diff --git a/arch/powerpc/include/asm/mman.h b/arch/powerpc/include/asm/mman.h
3801 index d4a7f64..451de1c 100644
3802 --- a/arch/powerpc/include/asm/mman.h
3803 +++ b/arch/powerpc/include/asm/mman.h
3804 @@ -44,7 +44,7 @@ static inline unsigned long arch_calc_vm_prot_bits(unsigned long prot)
3805 }
3806 #define arch_calc_vm_prot_bits(prot) arch_calc_vm_prot_bits(prot)
3807
3808 -static inline pgprot_t arch_vm_get_page_prot(unsigned long vm_flags)
3809 +static inline pgprot_t arch_vm_get_page_prot(vm_flags_t vm_flags)
3810 {
3811 return (vm_flags & VM_SAO) ? __pgprot(_PAGE_SAO) : __pgprot(0);
3812 }
3813 diff --git a/arch/powerpc/include/asm/page.h b/arch/powerpc/include/asm/page.h
3814 index f072e97..b436dee 100644
3815 --- a/arch/powerpc/include/asm/page.h
3816 +++ b/arch/powerpc/include/asm/page.h
3817 @@ -220,8 +220,9 @@ extern long long virt_phys_offset;
3818 * and needs to be executable. This means the whole heap ends
3819 * up being executable.
3820 */
3821 -#define VM_DATA_DEFAULT_FLAGS32 (VM_READ | VM_WRITE | VM_EXEC | \
3822 - VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
3823 +#define VM_DATA_DEFAULT_FLAGS32 \
3824 + (((current->personality & READ_IMPLIES_EXEC) ? VM_EXEC : 0) | \
3825 + VM_READ | VM_WRITE | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
3826
3827 #define VM_DATA_DEFAULT_FLAGS64 (VM_READ | VM_WRITE | \
3828 VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
3829 @@ -249,6 +250,9 @@ extern long long virt_phys_offset;
3830 #define is_kernel_addr(x) ((x) >= PAGE_OFFSET)
3831 #endif
3832
3833 +#define ktla_ktva(addr) (addr)
3834 +#define ktva_ktla(addr) (addr)
3835 +
3836 /*
3837 * Use the top bit of the higher-level page table entries to indicate whether
3838 * the entries we point to contain hugepages. This works because we know that
3839 diff --git a/arch/powerpc/include/asm/page_64.h b/arch/powerpc/include/asm/page_64.h
3840 index fed85e6..da5c71b 100644
3841 --- a/arch/powerpc/include/asm/page_64.h
3842 +++ b/arch/powerpc/include/asm/page_64.h
3843 @@ -146,15 +146,18 @@ do { \
3844 * stack by default, so in the absence of a PT_GNU_STACK program header
3845 * we turn execute permission off.
3846 */
3847 -#define VM_STACK_DEFAULT_FLAGS32 (VM_READ | VM_WRITE | VM_EXEC | \
3848 - VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
3849 +#define VM_STACK_DEFAULT_FLAGS32 \
3850 + (((current->personality & READ_IMPLIES_EXEC) ? VM_EXEC : 0) | \
3851 + VM_READ | VM_WRITE | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
3852
3853 #define VM_STACK_DEFAULT_FLAGS64 (VM_READ | VM_WRITE | \
3854 VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
3855
3856 +#ifndef CONFIG_PAX_PAGEEXEC
3857 #define VM_STACK_DEFAULT_FLAGS \
3858 (is_32bit_task() ? \
3859 VM_STACK_DEFAULT_FLAGS32 : VM_STACK_DEFAULT_FLAGS64)
3860 +#endif
3861
3862 #include <asm-generic/getorder.h>
3863
3864 diff --git a/arch/powerpc/include/asm/pgalloc-64.h b/arch/powerpc/include/asm/pgalloc-64.h
3865 index 292725c..f87ae14 100644
3866 --- a/arch/powerpc/include/asm/pgalloc-64.h
3867 +++ b/arch/powerpc/include/asm/pgalloc-64.h
3868 @@ -50,6 +50,7 @@ static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
3869 #ifndef CONFIG_PPC_64K_PAGES
3870
3871 #define pgd_populate(MM, PGD, PUD) pgd_set(PGD, PUD)
3872 +#define pgd_populate_kernel(MM, PGD, PUD) pgd_populate((MM), (PGD), (PUD))
3873
3874 static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr)
3875 {
3876 @@ -67,6 +68,11 @@ static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
3877 pud_set(pud, (unsigned long)pmd);
3878 }
3879
3880 +static inline void pud_populate_kernel(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
3881 +{
3882 + pud_populate(mm, pud, pmd);
3883 +}
3884 +
3885 #define pmd_populate(mm, pmd, pte_page) \
3886 pmd_populate_kernel(mm, pmd, page_address(pte_page))
3887 #define pmd_populate_kernel(mm, pmd, pte) pmd_set(pmd, (unsigned long)(pte))
3888 @@ -76,6 +82,7 @@ static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
3889 #else /* CONFIG_PPC_64K_PAGES */
3890
3891 #define pud_populate(mm, pud, pmd) pud_set(pud, (unsigned long)pmd)
3892 +#define pud_populate_kernel(mm, pud, pmd) pud_populate((mm), (pud), (pmd))
3893
3894 static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd,
3895 pte_t *pte)
3896 diff --git a/arch/powerpc/include/asm/pgtable.h b/arch/powerpc/include/asm/pgtable.h
3897 index 2e0e411..7899c68 100644
3898 --- a/arch/powerpc/include/asm/pgtable.h
3899 +++ b/arch/powerpc/include/asm/pgtable.h
3900 @@ -2,6 +2,7 @@
3901 #define _ASM_POWERPC_PGTABLE_H
3902 #ifdef __KERNEL__
3903
3904 +#include <linux/const.h>
3905 #ifndef __ASSEMBLY__
3906 #include <asm/processor.h> /* For TASK_SIZE */
3907 #include <asm/mmu.h>
3908 diff --git a/arch/powerpc/include/asm/pte-hash32.h b/arch/powerpc/include/asm/pte-hash32.h
3909 index 4aad413..85d86bf 100644
3910 --- a/arch/powerpc/include/asm/pte-hash32.h
3911 +++ b/arch/powerpc/include/asm/pte-hash32.h
3912 @@ -21,6 +21,7 @@
3913 #define _PAGE_FILE 0x004 /* when !present: nonlinear file mapping */
3914 #define _PAGE_USER 0x004 /* usermode access allowed */
3915 #define _PAGE_GUARDED 0x008 /* G: prohibit speculative access */
3916 +#define _PAGE_EXEC _PAGE_GUARDED
3917 #define _PAGE_COHERENT 0x010 /* M: enforce memory coherence (SMP systems) */
3918 #define _PAGE_NO_CACHE 0x020 /* I: cache inhibit */
3919 #define _PAGE_WRITETHRU 0x040 /* W: cache write-through */
3920 diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h
3921 index 360585d..c3930ef 100644
3922 --- a/arch/powerpc/include/asm/reg.h
3923 +++ b/arch/powerpc/include/asm/reg.h
3924 @@ -212,6 +212,7 @@
3925 #define SPRN_DBCR 0x136 /* e300 Data Breakpoint Control Reg */
3926 #define SPRN_DSISR 0x012 /* Data Storage Interrupt Status Register */
3927 #define DSISR_NOHPTE 0x40000000 /* no translation found */
3928 +#define DSISR_GUARDED 0x10000000 /* fetch from guarded storage */
3929 #define DSISR_PROTFAULT 0x08000000 /* protection fault */
3930 #define DSISR_ISSTORE 0x02000000 /* access was a store */
3931 #define DSISR_DABRMATCH 0x00400000 /* hit data breakpoint */
3932 diff --git a/arch/powerpc/include/asm/thread_info.h b/arch/powerpc/include/asm/thread_info.h
3933 index 68831e9..379c695 100644
3934 --- a/arch/powerpc/include/asm/thread_info.h
3935 +++ b/arch/powerpc/include/asm/thread_info.h
3936 @@ -91,12 +91,14 @@ static inline struct thread_info *current_thread_info(void)
3937 #define TIF_PERFMON_CTXSW 6 /* perfmon needs ctxsw calls */
3938 #define TIF_SYSCALL_AUDIT 7 /* syscall auditing active */
3939 #define TIF_SINGLESTEP 8 /* singlestepping active */
3940 -#define TIF_MEMDIE 9 /* is terminating due to OOM killer */
3941 #define TIF_SECCOMP 10 /* secure computing */
3942 #define TIF_RESTOREALL 11 /* Restore all regs (implies NOERROR) */
3943 #define TIF_NOERROR 12 /* Force successful syscall return */
3944 #define TIF_NOTIFY_RESUME 13 /* callback before returning to user */
3945 #define TIF_SYSCALL_TRACEPOINT 15 /* syscall tracepoint instrumentation */
3946 +#define TIF_MEMDIE 16 /* is terminating due to OOM killer */
3947 +/* mask must be expressable within 16 bits to satisfy 'andi' instruction reqs */
3948 +#define TIF_GRSEC_SETXID 9 /* update credentials on syscall entry/exit */
3949
3950 /* as above, but as bit values */
3951 #define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE)
3952 @@ -113,8 +115,10 @@ static inline struct thread_info *current_thread_info(void)
3953 #define _TIF_NOERROR (1<<TIF_NOERROR)
3954 #define _TIF_NOTIFY_RESUME (1<<TIF_NOTIFY_RESUME)
3955 #define _TIF_SYSCALL_TRACEPOINT (1<<TIF_SYSCALL_TRACEPOINT)
3956 +#define _TIF_GRSEC_SETXID (1<<TIF_GRSEC_SETXID)
3957 #define _TIF_SYSCALL_T_OR_A (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | \
3958 - _TIF_SECCOMP | _TIF_SYSCALL_TRACEPOINT)
3959 + _TIF_SECCOMP | _TIF_SYSCALL_TRACEPOINT | \
3960 + _TIF_GRSEC_SETXID)
3961
3962 #define _TIF_USER_WORK_MASK (_TIF_SIGPENDING | _TIF_NEED_RESCHED | \
3963 _TIF_NOTIFY_RESUME)
3964 diff --git a/arch/powerpc/include/asm/uaccess.h b/arch/powerpc/include/asm/uaccess.h
3965 index 17bb40c..353c98b 100644
3966 --- a/arch/powerpc/include/asm/uaccess.h
3967 +++ b/arch/powerpc/include/asm/uaccess.h
3968 @@ -13,6 +13,8 @@
3969 #define VERIFY_READ 0
3970 #define VERIFY_WRITE 1
3971
3972 +extern void check_object_size(const void *ptr, unsigned long n, bool to);
3973 +
3974 /*
3975 * The fs value determines whether argument validity checking should be
3976 * performed or not. If get_fs() == USER_DS, checking is performed, with
3977 @@ -329,52 +331,6 @@ do { \
3978 extern unsigned long __copy_tofrom_user(void __user *to,
3979 const void __user *from, unsigned long size);
3980
3981 -#ifndef __powerpc64__
3982 -
3983 -static inline unsigned long copy_from_user(void *to,
3984 - const void __user *from, unsigned long n)
3985 -{
3986 - unsigned long over;
3987 -
3988 - if (access_ok(VERIFY_READ, from, n))
3989 - return __copy_tofrom_user((__force void __user *)to, from, n);
3990 - if ((unsigned long)from < TASK_SIZE) {
3991 - over = (unsigned long)from + n - TASK_SIZE;
3992 - return __copy_tofrom_user((__force void __user *)to, from,
3993 - n - over) + over;
3994 - }
3995 - return n;
3996 -}
3997 -
3998 -static inline unsigned long copy_to_user(void __user *to,
3999 - const void *from, unsigned long n)
4000 -{
4001 - unsigned long over;
4002 -
4003 - if (access_ok(VERIFY_WRITE, to, n))
4004 - return __copy_tofrom_user(to, (__force void __user *)from, n);
4005 - if ((unsigned long)to < TASK_SIZE) {
4006 - over = (unsigned long)to + n - TASK_SIZE;
4007 - return __copy_tofrom_user(to, (__force void __user *)from,
4008 - n - over) + over;
4009 - }
4010 - return n;
4011 -}
4012 -
4013 -#else /* __powerpc64__ */
4014 -
4015 -#define __copy_in_user(to, from, size) \
4016 - __copy_tofrom_user((to), (from), (size))
4017 -
4018 -extern unsigned long copy_from_user(void *to, const void __user *from,
4019 - unsigned long n);
4020 -extern unsigned long copy_to_user(void __user *to, const void *from,
4021 - unsigned long n);
4022 -extern unsigned long copy_in_user(void __user *to, const void __user *from,
4023 - unsigned long n);
4024 -
4025 -#endif /* __powerpc64__ */
4026 -
4027 static inline unsigned long __copy_from_user_inatomic(void *to,
4028 const void __user *from, unsigned long n)
4029 {
4030 @@ -398,6 +354,10 @@ static inline unsigned long __copy_from_user_inatomic(void *to,
4031 if (ret == 0)
4032 return 0;
4033 }
4034 +
4035 + if (!__builtin_constant_p(n))
4036 + check_object_size(to, n, false);
4037 +
4038 return __copy_tofrom_user((__force void __user *)to, from, n);
4039 }
4040
4041 @@ -424,6 +384,10 @@ static inline unsigned long __copy_to_user_inatomic(void __user *to,
4042 if (ret == 0)
4043 return 0;
4044 }
4045 +
4046 + if (!__builtin_constant_p(n))
4047 + check_object_size(from, n, true);
4048 +
4049 return __copy_tofrom_user(to, (__force const void __user *)from, n);
4050 }
4051
4052 @@ -441,6 +405,92 @@ static inline unsigned long __copy_to_user(void __user *to,
4053 return __copy_to_user_inatomic(to, from, size);
4054 }
4055
4056 +#ifndef __powerpc64__
4057 +
4058 +static inline unsigned long __must_check copy_from_user(void *to,
4059 + const void __user *from, unsigned long n)
4060 +{
4061 + unsigned long over;
4062 +
4063 + if ((long)n < 0)
4064 + return n;
4065 +
4066 + if (access_ok(VERIFY_READ, from, n)) {
4067 + if (!__builtin_constant_p(n))
4068 + check_object_size(to, n, false);
4069 + return __copy_tofrom_user((__force void __user *)to, from, n);
4070 + }
4071 + if ((unsigned long)from < TASK_SIZE) {
4072 + over = (unsigned long)from + n - TASK_SIZE;
4073 + if (!__builtin_constant_p(n - over))
4074 + check_object_size(to, n - over, false);
4075 + return __copy_tofrom_user((__force void __user *)to, from,
4076 + n - over) + over;
4077 + }
4078 + return n;
4079 +}
4080 +
4081 +static inline unsigned long __must_check copy_to_user(void __user *to,
4082 + const void *from, unsigned long n)
4083 +{
4084 + unsigned long over;
4085 +
4086 + if ((long)n < 0)
4087 + return n;
4088 +
4089 + if (access_ok(VERIFY_WRITE, to, n)) {
4090 + if (!__builtin_constant_p(n))
4091 + check_object_size(from, n, true);
4092 + return __copy_tofrom_user(to, (__force void __user *)from, n);
4093 + }
4094 + if ((unsigned long)to < TASK_SIZE) {
4095 + over = (unsigned long)to + n - TASK_SIZE;
4096 + if (!__builtin_constant_p(n))
4097 + check_object_size(from, n - over, true);
4098 + return __copy_tofrom_user(to, (__force void __user *)from,
4099 + n - over) + over;
4100 + }
4101 + return n;
4102 +}
4103 +
4104 +#else /* __powerpc64__ */
4105 +
4106 +#define __copy_in_user(to, from, size) \
4107 + __copy_tofrom_user((to), (from), (size))
4108 +
4109 +static inline unsigned long __must_check copy_from_user(void *to, const void __user *from, unsigned long n)
4110 +{
4111 + if ((long)n < 0 || n > INT_MAX)
4112 + return n;
4113 +
4114 + if (!__builtin_constant_p(n))
4115 + check_object_size(to, n, false);
4116 +
4117 + if (likely(access_ok(VERIFY_READ, from, n)))
4118 + n = __copy_from_user(to, from, n);
4119 + else
4120 + memset(to, 0, n);
4121 + return n;
4122 +}
4123 +
4124 +static inline unsigned long __must_check copy_to_user(void __user *to, const void *from, unsigned long n)
4125 +{
4126 + if ((long)n < 0 || n > INT_MAX)
4127 + return n;
4128 +
4129 + if (likely(access_ok(VERIFY_WRITE, to, n))) {
4130 + if (!__builtin_constant_p(n))
4131 + check_object_size(from, n, true);
4132 + n = __copy_to_user(to, from, n);
4133 + }
4134 + return n;
4135 +}
4136 +
4137 +extern unsigned long copy_in_user(void __user *to, const void __user *from,
4138 + unsigned long n);
4139 +
4140 +#endif /* __powerpc64__ */
4141 +
4142 extern unsigned long __clear_user(void __user *addr, unsigned long size);
4143
4144 static inline unsigned long clear_user(void __user *addr, unsigned long size)
4145 diff --git a/arch/powerpc/kernel/exceptions-64e.S b/arch/powerpc/kernel/exceptions-64e.S
4146 index 7215cc2..a9730c1 100644
4147 --- a/arch/powerpc/kernel/exceptions-64e.S
4148 +++ b/arch/powerpc/kernel/exceptions-64e.S
4149 @@ -661,6 +661,7 @@ storage_fault_common:
4150 std r14,_DAR(r1)
4151 std r15,_DSISR(r1)
4152 addi r3,r1,STACK_FRAME_OVERHEAD
4153 + bl .save_nvgprs
4154 mr r4,r14
4155 mr r5,r15
4156 ld r14,PACA_EXGEN+EX_R14(r13)
4157 @@ -669,8 +670,7 @@ storage_fault_common:
4158 cmpdi r3,0
4159 bne- 1f
4160 b .ret_from_except_lite
4161 -1: bl .save_nvgprs
4162 - mr r5,r3
4163 +1: mr r5,r3
4164 addi r3,r1,STACK_FRAME_OVERHEAD
4165 ld r4,_DAR(r1)
4166 bl .bad_page_fault
4167 diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S
4168 index 1c06d29..c2a339b 100644
4169 --- a/arch/powerpc/kernel/exceptions-64s.S
4170 +++ b/arch/powerpc/kernel/exceptions-64s.S
4171 @@ -888,10 +888,10 @@ handle_page_fault:
4172 11: ld r4,_DAR(r1)
4173 ld r5,_DSISR(r1)
4174 addi r3,r1,STACK_FRAME_OVERHEAD
4175 + bl .save_nvgprs
4176 bl .do_page_fault
4177 cmpdi r3,0
4178 beq+ 12f
4179 - bl .save_nvgprs
4180 mr r5,r3
4181 addi r3,r1,STACK_FRAME_OVERHEAD
4182 lwz r4,_DAR(r1)
4183 diff --git a/arch/powerpc/kernel/module_32.c b/arch/powerpc/kernel/module_32.c
4184 index 2e3200c..72095ce 100644
4185 --- a/arch/powerpc/kernel/module_32.c
4186 +++ b/arch/powerpc/kernel/module_32.c
4187 @@ -162,7 +162,7 @@ int module_frob_arch_sections(Elf32_Ehdr *hdr,
4188 me->arch.core_plt_section = i;
4189 }
4190 if (!me->arch.core_plt_section || !me->arch.init_plt_section) {
4191 - printk("Module doesn't contain .plt or .init.plt sections.\n");
4192 + printk("Module %s doesn't contain .plt or .init.plt sections.\n", me->name);
4193 return -ENOEXEC;
4194 }
4195
4196 @@ -192,11 +192,16 @@ static uint32_t do_plt_call(void *location,
4197
4198 DEBUGP("Doing plt for call to 0x%x at 0x%x\n", val, (unsigned int)location);
4199 /* Init, or core PLT? */
4200 - if (location >= mod->module_core
4201 - && location < mod->module_core + mod->core_size)
4202 + if ((location >= mod->module_core_rx && location < mod->module_core_rx + mod->core_size_rx) ||
4203 + (location >= mod->module_core_rw && location < mod->module_core_rw + mod->core_size_rw))
4204 entry = (void *)sechdrs[mod->arch.core_plt_section].sh_addr;
4205 - else
4206 + else if ((location >= mod->module_init_rx && location < mod->module_init_rx + mod->init_size_rx) ||
4207 + (location >= mod->module_init_rw && location < mod->module_init_rw + mod->init_size_rw))
4208 entry = (void *)sechdrs[mod->arch.init_plt_section].sh_addr;
4209 + else {
4210 + printk(KERN_ERR "%s: invalid R_PPC_REL24 entry found\n", mod->name);
4211 + return ~0UL;
4212 + }
4213
4214 /* Find this entry, or if that fails, the next avail. entry */
4215 while (entry->jump[0]) {
4216 diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
4217 index 710f400..d00ebe6 100644
4218 --- a/arch/powerpc/kernel/process.c
4219 +++ b/arch/powerpc/kernel/process.c
4220 @@ -681,8 +681,8 @@ void show_regs(struct pt_regs * regs)
4221 * Lookup NIP late so we have the best change of getting the
4222 * above info out without failing
4223 */
4224 - printk("NIP ["REG"] %pS\n", regs->nip, (void *)regs->nip);
4225 - printk("LR ["REG"] %pS\n", regs->link, (void *)regs->link);
4226 + printk("NIP ["REG"] %pA\n", regs->nip, (void *)regs->nip);
4227 + printk("LR ["REG"] %pA\n", regs->link, (void *)regs->link);
4228 #endif
4229 show_stack(current, (unsigned long *) regs->gpr[1]);
4230 if (!user_mode(regs))
4231 @@ -1189,10 +1189,10 @@ void show_stack(struct task_struct *tsk, unsigned long *stack)
4232 newsp = stack[0];
4233 ip = stack[STACK_FRAME_LR_SAVE];
4234 if (!firstframe || ip != lr) {
4235 - printk("["REG"] ["REG"] %pS", sp, ip, (void *)ip);
4236 + printk("["REG"] ["REG"] %pA", sp, ip, (void *)ip);
4237 #ifdef CONFIG_FUNCTION_GRAPH_TRACER
4238 if ((ip == rth || ip == mrth) && curr_frame >= 0) {
4239 - printk(" (%pS)",
4240 + printk(" (%pA)",
4241 (void *)current->ret_stack[curr_frame].ret);
4242 curr_frame--;
4243 }
4244 @@ -1212,7 +1212,7 @@ void show_stack(struct task_struct *tsk, unsigned long *stack)
4245 struct pt_regs *regs = (struct pt_regs *)
4246 (sp + STACK_FRAME_OVERHEAD);
4247 lr = regs->link;
4248 - printk("--- Exception: %lx at %pS\n LR = %pS\n",
4249 + printk("--- Exception: %lx at %pA\n LR = %pA\n",
4250 regs->trap, (void *)regs->nip, (void *)lr);
4251 firstframe = 1;
4252 }
4253 @@ -1254,58 +1254,3 @@ void __ppc64_runlatch_off(void)
4254 mtspr(SPRN_CTRLT, ctrl);
4255 }
4256 #endif /* CONFIG_PPC64 */
4257 -
4258 -unsigned long arch_align_stack(unsigned long sp)
4259 -{
4260 - if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space)
4261 - sp -= get_random_int() & ~PAGE_MASK;
4262 - return sp & ~0xf;
4263 -}
4264 -
4265 -static inline unsigned long brk_rnd(void)
4266 -{
4267 - unsigned long rnd = 0;
4268 -
4269 - /* 8MB for 32bit, 1GB for 64bit */
4270 - if (is_32bit_task())
4271 - rnd = (long)(get_random_int() % (1<<(23-PAGE_SHIFT)));
4272 - else
4273 - rnd = (long)(get_random_int() % (1<<(30-PAGE_SHIFT)));
4274 -
4275 - return rnd << PAGE_SHIFT;
4276 -}
4277 -
4278 -unsigned long arch_randomize_brk(struct mm_struct *mm)
4279 -{
4280 - unsigned long base = mm->brk;
4281 - unsigned long ret;
4282 -
4283 -#ifdef CONFIG_PPC_STD_MMU_64
4284 - /*
4285 - * If we are using 1TB segments and we are allowed to randomise
4286 - * the heap, we can put it above 1TB so it is backed by a 1TB
4287 - * segment. Otherwise the heap will be in the bottom 1TB
4288 - * which always uses 256MB segments and this may result in a
4289 - * performance penalty.
4290 - */
4291 - if (!is_32bit_task() && (mmu_highuser_ssize == MMU_SEGSIZE_1T))
4292 - base = max_t(unsigned long, mm->brk, 1UL << SID_SHIFT_1T);
4293 -#endif
4294 -
4295 - ret = PAGE_ALIGN(base + brk_rnd());
4296 -
4297 - if (ret < mm->brk)
4298 - return mm->brk;
4299 -
4300 - return ret;
4301 -}
4302 -
4303 -unsigned long randomize_et_dyn(unsigned long base)
4304 -{
4305 - unsigned long ret = PAGE_ALIGN(base + brk_rnd());
4306 -
4307 - if (ret < base)
4308 - return base;
4309 -
4310 - return ret;
4311 -}
4312 diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c
4313 index c10fc28..c4ef063 100644
4314 --- a/arch/powerpc/kernel/ptrace.c
4315 +++ b/arch/powerpc/kernel/ptrace.c
4316 @@ -1660,6 +1660,10 @@ long arch_ptrace(struct task_struct *child, long request,
4317 return ret;
4318 }
4319
4320 +#ifdef CONFIG_GRKERNSEC_SETXID
4321 +extern void gr_delayed_cred_worker(void);
4322 +#endif
4323 +
4324 /*
4325 * We must return the syscall number to actually look up in the table.
4326 * This can be -1L to skip running any syscall at all.
4327 @@ -1670,6 +1674,11 @@ long do_syscall_trace_enter(struct pt_regs *regs)
4328
4329 secure_computing_strict(regs->gpr[0]);
4330
4331 +#ifdef CONFIG_GRKERNSEC_SETXID
4332 + if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID)))
4333 + gr_delayed_cred_worker();
4334 +#endif
4335 +
4336 if (test_thread_flag(TIF_SYSCALL_TRACE) &&
4337 tracehook_report_syscall_entry(regs))
4338 /*
4339 @@ -1704,6 +1713,11 @@ void do_syscall_trace_leave(struct pt_regs *regs)
4340 {
4341 int step;
4342
4343 +#ifdef CONFIG_GRKERNSEC_SETXID
4344 + if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID)))
4345 + gr_delayed_cred_worker();
4346 +#endif
4347 +
4348 audit_syscall_exit(regs);
4349
4350 if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
4351 diff --git a/arch/powerpc/kernel/signal_32.c b/arch/powerpc/kernel/signal_32.c
4352 index 8b4c049..dcd6ef3 100644
4353 --- a/arch/powerpc/kernel/signal_32.c
4354 +++ b/arch/powerpc/kernel/signal_32.c
4355 @@ -852,7 +852,7 @@ int handle_rt_signal32(unsigned long sig, struct k_sigaction *ka,
4356 /* Save user registers on the stack */
4357 frame = &rt_sf->uc.uc_mcontext;
4358 addr = frame;
4359 - if (vdso32_rt_sigtramp && current->mm->context.vdso_base) {
4360 + if (vdso32_rt_sigtramp && current->mm->context.vdso_base != ~0UL) {
4361 if (save_user_regs(regs, frame, 0, 1))
4362 goto badframe;
4363 regs->link = current->mm->context.vdso_base + vdso32_rt_sigtramp;
4364 diff --git a/arch/powerpc/kernel/signal_64.c b/arch/powerpc/kernel/signal_64.c
4365 index d183f87..1867f1a 100644
4366 --- a/arch/powerpc/kernel/signal_64.c
4367 +++ b/arch/powerpc/kernel/signal_64.c
4368 @@ -430,7 +430,7 @@ int handle_rt_signal64(int signr, struct k_sigaction *ka, siginfo_t *info,
4369 current->thread.fpscr.val = 0;
4370
4371 /* Set up to return from userspace. */
4372 - if (vdso64_rt_sigtramp && current->mm->context.vdso_base) {
4373 + if (vdso64_rt_sigtramp && current->mm->context.vdso_base != ~0UL) {
4374 regs->link = current->mm->context.vdso_base + vdso64_rt_sigtramp;
4375 } else {
4376 err |= setup_trampoline(__NR_rt_sigreturn, &frame->tramp[0]);
4377 diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
4378 index 1589723..cefe690 100644
4379 --- a/arch/powerpc/kernel/traps.c
4380 +++ b/arch/powerpc/kernel/traps.c
4381 @@ -133,6 +133,8 @@ static unsigned __kprobes long oops_begin(struct pt_regs *regs)
4382 return flags;
4383 }
4384
4385 +extern void gr_handle_kernel_exploit(void);
4386 +
4387 static void __kprobes oops_end(unsigned long flags, struct pt_regs *regs,
4388 int signr)
4389 {
4390 @@ -182,6 +184,9 @@ static void __kprobes oops_end(unsigned long flags, struct pt_regs *regs,
4391 panic("Fatal exception in interrupt");
4392 if (panic_on_oops)
4393 panic("Fatal exception");
4394 +
4395 + gr_handle_kernel_exploit();
4396 +
4397 do_exit(signr);
4398 }
4399
4400 diff --git a/arch/powerpc/kernel/vdso.c b/arch/powerpc/kernel/vdso.c
4401 index 9eb5b9b..e45498a 100644
4402 --- a/arch/powerpc/kernel/vdso.c
4403 +++ b/arch/powerpc/kernel/vdso.c
4404 @@ -34,6 +34,7 @@
4405 #include <asm/firmware.h>
4406 #include <asm/vdso.h>
4407 #include <asm/vdso_datapage.h>
4408 +#include <asm/mman.h>
4409
4410 #include "setup.h"
4411
4412 @@ -218,7 +219,7 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
4413 vdso_base = VDSO32_MBASE;
4414 #endif
4415
4416 - current->mm->context.vdso_base = 0;
4417 + current->mm->context.vdso_base = ~0UL;
4418
4419 /* vDSO has a problem and was disabled, just don't "enable" it for the
4420 * process
4421 @@ -238,7 +239,7 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
4422 vdso_base = get_unmapped_area(NULL, vdso_base,
4423 (vdso_pages << PAGE_SHIFT) +
4424 ((VDSO_ALIGNMENT - 1) & PAGE_MASK),
4425 - 0, 0);
4426 + 0, MAP_PRIVATE | MAP_EXECUTABLE);
4427 if (IS_ERR_VALUE(vdso_base)) {
4428 rc = vdso_base;
4429 goto fail_mmapsem;
4430 diff --git a/arch/powerpc/lib/usercopy_64.c b/arch/powerpc/lib/usercopy_64.c
4431 index 5eea6f3..5d10396 100644
4432 --- a/arch/powerpc/lib/usercopy_64.c
4433 +++ b/arch/powerpc/lib/usercopy_64.c
4434 @@ -9,22 +9,6 @@
4435 #include <linux/module.h>
4436 #include <asm/uaccess.h>
4437
4438 -unsigned long copy_from_user(void *to, const void __user *from, unsigned long n)
4439 -{
4440 - if (likely(access_ok(VERIFY_READ, from, n)))
4441 - n = __copy_from_user(to, from, n);
4442 - else
4443 - memset(to, 0, n);
4444 - return n;
4445 -}
4446 -
4447 -unsigned long copy_to_user(void __user *to, const void *from, unsigned long n)
4448 -{
4449 - if (likely(access_ok(VERIFY_WRITE, to, n)))
4450 - n = __copy_to_user(to, from, n);
4451 - return n;
4452 -}
4453 -
4454 unsigned long copy_in_user(void __user *to, const void __user *from,
4455 unsigned long n)
4456 {
4457 @@ -35,7 +19,5 @@ unsigned long copy_in_user(void __user *to, const void __user *from,
4458 return n;
4459 }
4460
4461 -EXPORT_SYMBOL(copy_from_user);
4462 -EXPORT_SYMBOL(copy_to_user);
4463 EXPORT_SYMBOL(copy_in_user);
4464
4465 diff --git a/arch/powerpc/mm/fault.c b/arch/powerpc/mm/fault.c
4466 index 08ffcf5..a0ab912 100644
4467 --- a/arch/powerpc/mm/fault.c
4468 +++ b/arch/powerpc/mm/fault.c
4469 @@ -32,6 +32,10 @@
4470 #include <linux/perf_event.h>
4471 #include <linux/magic.h>
4472 #include <linux/ratelimit.h>
4473 +#include <linux/slab.h>
4474 +#include <linux/pagemap.h>
4475 +#include <linux/compiler.h>
4476 +#include <linux/unistd.h>
4477
4478 #include <asm/firmware.h>
4479 #include <asm/page.h>
4480 @@ -68,6 +72,33 @@ static inline int notify_page_fault(struct pt_regs *regs)
4481 }
4482 #endif
4483
4484 +#ifdef CONFIG_PAX_PAGEEXEC
4485 +/*
4486 + * PaX: decide what to do with offenders (regs->nip = fault address)
4487 + *
4488 + * returns 1 when task should be killed
4489 + */
4490 +static int pax_handle_fetch_fault(struct pt_regs *regs)
4491 +{
4492 + return 1;
4493 +}
4494 +
4495 +void pax_report_insns(struct pt_regs *regs, void *pc, void *sp)
4496 +{
4497 + unsigned long i;
4498 +
4499 + printk(KERN_ERR "PAX: bytes at PC: ");
4500 + for (i = 0; i < 5; i++) {
4501 + unsigned int c;
4502 + if (get_user(c, (unsigned int __user *)pc+i))
4503 + printk(KERN_CONT "???????? ");
4504 + else
4505 + printk(KERN_CONT "%08x ", c);
4506 + }
4507 + printk("\n");
4508 +}
4509 +#endif
4510 +
4511 /*
4512 * Check whether the instruction at regs->nip is a store using
4513 * an update addressing form which will update r1.
4514 @@ -215,7 +246,7 @@ int __kprobes do_page_fault(struct pt_regs *regs, unsigned long address,
4515 * indicate errors in DSISR but can validly be set in SRR1.
4516 */
4517 if (trap == 0x400)
4518 - error_code &= 0x48200000;
4519 + error_code &= 0x58200000;
4520 else
4521 is_write = error_code & DSISR_ISSTORE;
4522 #else
4523 @@ -366,7 +397,7 @@ good_area:
4524 * "undefined". Of those that can be set, this is the only
4525 * one which seems bad.
4526 */
4527 - if (error_code & 0x10000000)
4528 + if (error_code & DSISR_GUARDED)
4529 /* Guarded storage error. */
4530 goto bad_area;
4531 #endif /* CONFIG_8xx */
4532 @@ -381,7 +412,7 @@ good_area:
4533 * processors use the same I/D cache coherency mechanism
4534 * as embedded.
4535 */
4536 - if (error_code & DSISR_PROTFAULT)
4537 + if (error_code & (DSISR_PROTFAULT | DSISR_GUARDED))
4538 goto bad_area;
4539 #endif /* CONFIG_PPC_STD_MMU */
4540
4541 @@ -463,6 +494,23 @@ bad_area:
4542 bad_area_nosemaphore:
4543 /* User mode accesses cause a SIGSEGV */
4544 if (user_mode(regs)) {
4545 +
4546 +#ifdef CONFIG_PAX_PAGEEXEC
4547 + if (mm->pax_flags & MF_PAX_PAGEEXEC) {
4548 +#ifdef CONFIG_PPC_STD_MMU
4549 + if (is_exec && (error_code & (DSISR_PROTFAULT | DSISR_GUARDED))) {
4550 +#else
4551 + if (is_exec && regs->nip == address) {
4552 +#endif
4553 + switch (pax_handle_fetch_fault(regs)) {
4554 + }
4555 +
4556 + pax_report_fault(regs, (void *)regs->nip, (void *)regs->gpr[PT_R1]);
4557 + do_group_exit(SIGKILL);
4558 + }
4559 + }
4560 +#endif
4561 +
4562 _exception(SIGSEGV, regs, code, address);
4563 return 0;
4564 }
4565 diff --git a/arch/powerpc/mm/mmap_64.c b/arch/powerpc/mm/mmap_64.c
4566 index 67a42ed..1c7210c 100644
4567 --- a/arch/powerpc/mm/mmap_64.c
4568 +++ b/arch/powerpc/mm/mmap_64.c
4569 @@ -91,10 +91,22 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
4570 */
4571 if (mmap_is_legacy()) {
4572 mm->mmap_base = TASK_UNMAPPED_BASE;
4573 +
4574 +#ifdef CONFIG_PAX_RANDMMAP
4575 + if (mm->pax_flags & MF_PAX_RANDMMAP)
4576 + mm->mmap_base += mm->delta_mmap;
4577 +#endif
4578 +
4579 mm->get_unmapped_area = arch_get_unmapped_area;
4580 mm->unmap_area = arch_unmap_area;
4581 } else {
4582 mm->mmap_base = mmap_base();
4583 +
4584 +#ifdef CONFIG_PAX_RANDMMAP
4585 + if (mm->pax_flags & MF_PAX_RANDMMAP)
4586 + mm->mmap_base -= mm->delta_mmap + mm->delta_stack;
4587 +#endif
4588 +
4589 mm->get_unmapped_area = arch_get_unmapped_area_topdown;
4590 mm->unmap_area = arch_unmap_area_topdown;
4591 }
4592 diff --git a/arch/powerpc/mm/slice.c b/arch/powerpc/mm/slice.c
4593 index 73709f7..6b90313 100644
4594 --- a/arch/powerpc/mm/slice.c
4595 +++ b/arch/powerpc/mm/slice.c
4596 @@ -98,7 +98,7 @@ static int slice_area_is_free(struct mm_struct *mm, unsigned long addr,
4597 if ((mm->task_size - len) < addr)
4598 return 0;
4599 vma = find_vma(mm, addr);
4600 - return (!vma || (addr + len) <= vma->vm_start);
4601 + return check_heap_stack_gap(vma, addr, len);
4602 }
4603
4604 static int slice_low_has_vma(struct mm_struct *mm, unsigned long slice)
4605 @@ -256,7 +256,7 @@ full_search:
4606 addr = _ALIGN_UP(addr + 1, 1ul << SLICE_HIGH_SHIFT);
4607 continue;
4608 }
4609 - if (!vma || addr + len <= vma->vm_start) {
4610 + if (check_heap_stack_gap(vma, addr, len)) {
4611 /*
4612 * Remember the place where we stopped the search:
4613 */
4614 @@ -313,10 +313,14 @@ static unsigned long slice_find_area_topdown(struct mm_struct *mm,
4615 }
4616 }
4617
4618 - addr = mm->mmap_base;
4619 - while (addr > len) {
4620 + if (mm->mmap_base < len)
4621 + addr = -ENOMEM;
4622 + else
4623 + addr = mm->mmap_base - len;
4624 +
4625 + while (!IS_ERR_VALUE(addr)) {
4626 /* Go down by chunk size */
4627 - addr = _ALIGN_DOWN(addr - len, 1ul << pshift);
4628 + addr = _ALIGN_DOWN(addr, 1ul << pshift);
4629
4630 /* Check for hit with different page size */
4631 mask = slice_range_to_mask(addr, len);
4632 @@ -336,7 +340,7 @@ static unsigned long slice_find_area_topdown(struct mm_struct *mm,
4633 * return with success:
4634 */
4635 vma = find_vma(mm, addr);
4636 - if (!vma || (addr + len) <= vma->vm_start) {
4637 + if (check_heap_stack_gap(vma, addr, len)) {
4638 /* remember the address as a hint for next time */
4639 if (use_cache)
4640 mm->free_area_cache = addr;
4641 @@ -348,7 +352,7 @@ static unsigned long slice_find_area_topdown(struct mm_struct *mm,
4642 mm->cached_hole_size = vma->vm_start - addr;
4643
4644 /* try just below the current vma->vm_start */
4645 - addr = vma->vm_start;
4646 + addr = skip_heap_stack_gap(vma, len);
4647 }
4648
4649 /*
4650 @@ -426,6 +430,11 @@ unsigned long slice_get_unmapped_area(unsigned long addr, unsigned long len,
4651 if (fixed && addr > (mm->task_size - len))
4652 return -EINVAL;
4653
4654 +#ifdef CONFIG_PAX_RANDMMAP
4655 + if (!fixed && (mm->pax_flags & MF_PAX_RANDMMAP))
4656 + addr = 0;
4657 +#endif
4658 +
4659 /* If hint, make sure it matches our alignment restrictions */
4660 if (!fixed && addr) {
4661 addr = _ALIGN_UP(addr, 1ul << pshift);
4662 diff --git a/arch/s390/include/asm/atomic.h b/arch/s390/include/asm/atomic.h
4663 index 748347b..81bc6c7 100644
4664 --- a/arch/s390/include/asm/atomic.h
4665 +++ b/arch/s390/include/asm/atomic.h
4666 @@ -326,6 +326,16 @@ static inline long long atomic64_dec_if_positive(atomic64_t *v)
4667 #define atomic64_dec_and_test(_v) (atomic64_sub_return(1, _v) == 0)
4668 #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
4669
4670 +#define atomic64_read_unchecked(v) atomic64_read(v)
4671 +#define atomic64_set_unchecked(v, i) atomic64_set((v), (i))
4672 +#define atomic64_add_unchecked(a, v) atomic64_add((a), (v))
4673 +#define atomic64_add_return_unchecked(a, v) atomic64_add_return((a), (v))
4674 +#define atomic64_sub_unchecked(a, v) atomic64_sub((a), (v))
4675 +#define atomic64_inc_unchecked(v) atomic64_inc(v)
4676 +#define atomic64_inc_return_unchecked(v) atomic64_inc_return(v)
4677 +#define atomic64_dec_unchecked(v) atomic64_dec(v)
4678 +#define atomic64_cmpxchg_unchecked(v, o, n) atomic64_cmpxchg((v), (o), (n))
4679 +
4680 #define smp_mb__before_atomic_dec() smp_mb()
4681 #define smp_mb__after_atomic_dec() smp_mb()
4682 #define smp_mb__before_atomic_inc() smp_mb()
4683 diff --git a/arch/s390/include/asm/cache.h b/arch/s390/include/asm/cache.h
4684 index 2a30d5a..5e5586f 100644
4685 --- a/arch/s390/include/asm/cache.h
4686 +++ b/arch/s390/include/asm/cache.h
4687 @@ -11,8 +11,10 @@
4688 #ifndef __ARCH_S390_CACHE_H
4689 #define __ARCH_S390_CACHE_H
4690
4691 -#define L1_CACHE_BYTES 256
4692 +#include <linux/const.h>
4693 +
4694 #define L1_CACHE_SHIFT 8
4695 +#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
4696 #define NET_SKB_PAD 32
4697
4698 #define __read_mostly __attribute__((__section__(".data..read_mostly")))
4699 diff --git a/arch/s390/include/asm/elf.h b/arch/s390/include/asm/elf.h
4700 index 06151e6..c08cb52 100644
4701 --- a/arch/s390/include/asm/elf.h
4702 +++ b/arch/s390/include/asm/elf.h
4703 @@ -161,8 +161,14 @@ extern unsigned int vdso_enabled;
4704 the loader. We need to make sure that it is out of the way of the program
4705 that it will "exec", and that there is sufficient room for the brk. */
4706
4707 -extern unsigned long randomize_et_dyn(unsigned long base);
4708 -#define ELF_ET_DYN_BASE (randomize_et_dyn(STACK_TOP / 3 * 2))
4709 +#define ELF_ET_DYN_BASE (STACK_TOP / 3 * 2)
4710 +
4711 +#ifdef CONFIG_PAX_ASLR
4712 +#define PAX_ELF_ET_DYN_BASE (test_thread_flag(TIF_31BIT) ? 0x10000UL : 0x80000000UL)
4713 +
4714 +#define PAX_DELTA_MMAP_LEN (test_thread_flag(TIF_31BIT) ? 15 : 26)
4715 +#define PAX_DELTA_STACK_LEN (test_thread_flag(TIF_31BIT) ? 15 : 26)
4716 +#endif
4717
4718 /* This yields a mask that user programs can use to figure out what
4719 instruction set this CPU supports. */
4720 @@ -210,7 +216,4 @@ struct linux_binprm;
4721 #define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1
4722 int arch_setup_additional_pages(struct linux_binprm *, int);
4723
4724 -extern unsigned long arch_randomize_brk(struct mm_struct *mm);
4725 -#define arch_randomize_brk arch_randomize_brk
4726 -
4727 #endif
4728 diff --git a/arch/s390/include/asm/exec.h b/arch/s390/include/asm/exec.h
4729 index c4a93d6..4d2a9b4 100644
4730 --- a/arch/s390/include/asm/exec.h
4731 +++ b/arch/s390/include/asm/exec.h
4732 @@ -7,6 +7,6 @@
4733 #ifndef __ASM_EXEC_H
4734 #define __ASM_EXEC_H
4735
4736 -extern unsigned long arch_align_stack(unsigned long sp);
4737 +#define arch_align_stack(x) ((x) & ~0xfUL)
4738
4739 #endif /* __ASM_EXEC_H */
4740 diff --git a/arch/s390/include/asm/uaccess.h b/arch/s390/include/asm/uaccess.h
4741 index 1f3a79b..44d7f9c 100644
4742 --- a/arch/s390/include/asm/uaccess.h
4743 +++ b/arch/s390/include/asm/uaccess.h
4744 @@ -241,6 +241,10 @@ static inline unsigned long __must_check
4745 copy_to_user(void __user *to, const void *from, unsigned long n)
4746 {
4747 might_fault();
4748 +
4749 + if ((long)n < 0)
4750 + return n;
4751 +
4752 if (access_ok(VERIFY_WRITE, to, n))
4753 n = __copy_to_user(to, from, n);
4754 return n;
4755 @@ -266,6 +270,9 @@ copy_to_user(void __user *to, const void *from, unsigned long n)
4756 static inline unsigned long __must_check
4757 __copy_from_user(void *to, const void __user *from, unsigned long n)
4758 {
4759 + if ((long)n < 0)
4760 + return n;
4761 +
4762 if (__builtin_constant_p(n) && (n <= 256))
4763 return uaccess.copy_from_user_small(n, from, to);
4764 else
4765 @@ -297,10 +304,14 @@ __compiletime_warning("copy_from_user() buffer size is not provably correct")
4766 static inline unsigned long __must_check
4767 copy_from_user(void *to, const void __user *from, unsigned long n)
4768 {
4769 - unsigned int sz = __compiletime_object_size(to);
4770 + size_t sz = __compiletime_object_size(to);
4771
4772 might_fault();
4773 - if (unlikely(sz != -1 && sz < n)) {
4774 +
4775 + if ((long)n < 0)
4776 + return n;
4777 +
4778 + if (unlikely(sz != (size_t)-1 && sz < n)) {
4779 copy_from_user_overflow();
4780 return n;
4781 }
4782 diff --git a/arch/s390/kernel/module.c b/arch/s390/kernel/module.c
4783 index dfcb343..eda788a 100644
4784 --- a/arch/s390/kernel/module.c
4785 +++ b/arch/s390/kernel/module.c
4786 @@ -161,11 +161,11 @@ module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs,
4787
4788 /* Increase core size by size of got & plt and set start
4789 offsets for got and plt. */
4790 - me->core_size = ALIGN(me->core_size, 4);
4791 - me->arch.got_offset = me->core_size;
4792 - me->core_size += me->arch.got_size;
4793 - me->arch.plt_offset = me->core_size;
4794 - me->core_size += me->arch.plt_size;
4795 + me->core_size_rw = ALIGN(me->core_size_rw, 4);
4796 + me->arch.got_offset = me->core_size_rw;
4797 + me->core_size_rw += me->arch.got_size;
4798 + me->arch.plt_offset = me->core_size_rx;
4799 + me->core_size_rx += me->arch.plt_size;
4800 return 0;
4801 }
4802
4803 @@ -242,7 +242,7 @@ apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab,
4804 if (info->got_initialized == 0) {
4805 Elf_Addr *gotent;
4806
4807 - gotent = me->module_core + me->arch.got_offset +
4808 + gotent = me->module_core_rw + me->arch.got_offset +
4809 info->got_offset;
4810 *gotent = val;
4811 info->got_initialized = 1;
4812 @@ -266,7 +266,7 @@ apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab,
4813 else if (r_type == R_390_GOTENT ||
4814 r_type == R_390_GOTPLTENT)
4815 *(unsigned int *) loc =
4816 - (val + (Elf_Addr) me->module_core - loc) >> 1;
4817 + (val + (Elf_Addr) me->module_core_rw - loc) >> 1;
4818 else if (r_type == R_390_GOT64 ||
4819 r_type == R_390_GOTPLT64)
4820 *(unsigned long *) loc = val;
4821 @@ -280,7 +280,7 @@ apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab,
4822 case R_390_PLTOFF64: /* 16 bit offset from GOT to PLT. */
4823 if (info->plt_initialized == 0) {
4824 unsigned int *ip;
4825 - ip = me->module_core + me->arch.plt_offset +
4826 + ip = me->module_core_rx + me->arch.plt_offset +
4827 info->plt_offset;
4828 #ifndef CONFIG_64BIT
4829 ip[0] = 0x0d105810; /* basr 1,0; l 1,6(1); br 1 */
4830 @@ -305,7 +305,7 @@ apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab,
4831 val - loc + 0xffffUL < 0x1ffffeUL) ||
4832 (r_type == R_390_PLT32DBL &&
4833 val - loc + 0xffffffffULL < 0x1fffffffeULL)))
4834 - val = (Elf_Addr) me->module_core +
4835 + val = (Elf_Addr) me->module_core_rx +
4836 me->arch.plt_offset +
4837 info->plt_offset;
4838 val += rela->r_addend - loc;
4839 @@ -327,7 +327,7 @@ apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab,
4840 case R_390_GOTOFF32: /* 32 bit offset to GOT. */
4841 case R_390_GOTOFF64: /* 64 bit offset to GOT. */
4842 val = val + rela->r_addend -
4843 - ((Elf_Addr) me->module_core + me->arch.got_offset);
4844 + ((Elf_Addr) me->module_core_rw + me->arch.got_offset);
4845 if (r_type == R_390_GOTOFF16)
4846 *(unsigned short *) loc = val;
4847 else if (r_type == R_390_GOTOFF32)
4848 @@ -337,7 +337,7 @@ apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab,
4849 break;
4850 case R_390_GOTPC: /* 32 bit PC relative offset to GOT. */
4851 case R_390_GOTPCDBL: /* 32 bit PC rel. off. to GOT shifted by 1. */
4852 - val = (Elf_Addr) me->module_core + me->arch.got_offset +
4853 + val = (Elf_Addr) me->module_core_rw + me->arch.got_offset +
4854 rela->r_addend - loc;
4855 if (r_type == R_390_GOTPC)
4856 *(unsigned int *) loc = val;
4857 diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c
4858 index 60055ce..ee4b252 100644
4859 --- a/arch/s390/kernel/process.c
4860 +++ b/arch/s390/kernel/process.c
4861 @@ -316,39 +316,3 @@ unsigned long get_wchan(struct task_struct *p)
4862 }
4863 return 0;
4864 }
4865 -
4866 -unsigned long arch_align_stack(unsigned long sp)
4867 -{
4868 - if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space)
4869 - sp -= get_random_int() & ~PAGE_MASK;
4870 - return sp & ~0xf;
4871 -}
4872 -
4873 -static inline unsigned long brk_rnd(void)
4874 -{
4875 - /* 8MB for 32bit, 1GB for 64bit */
4876 - if (is_32bit_task())
4877 - return (get_random_int() & 0x7ffUL) << PAGE_SHIFT;
4878 - else
4879 - return (get_random_int() & 0x3ffffUL) << PAGE_SHIFT;
4880 -}
4881 -
4882 -unsigned long arch_randomize_brk(struct mm_struct *mm)
4883 -{
4884 - unsigned long ret = PAGE_ALIGN(mm->brk + brk_rnd());
4885 -
4886 - if (ret < mm->brk)
4887 - return mm->brk;
4888 - return ret;
4889 -}
4890 -
4891 -unsigned long randomize_et_dyn(unsigned long base)
4892 -{
4893 - unsigned long ret = PAGE_ALIGN(base + brk_rnd());
4894 -
4895 - if (!(current->flags & PF_RANDOMIZE))
4896 - return base;
4897 - if (ret < base)
4898 - return base;
4899 - return ret;
4900 -}
4901 diff --git a/arch/s390/mm/mmap.c b/arch/s390/mm/mmap.c
4902 index a64fe53..5c66963 100644
4903 --- a/arch/s390/mm/mmap.c
4904 +++ b/arch/s390/mm/mmap.c
4905 @@ -92,10 +92,22 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
4906 */
4907 if (mmap_is_legacy()) {
4908 mm->mmap_base = TASK_UNMAPPED_BASE;
4909 +
4910 +#ifdef CONFIG_PAX_RANDMMAP
4911 + if (mm->pax_flags & MF_PAX_RANDMMAP)
4912 + mm->mmap_base += mm->delta_mmap;
4913 +#endif
4914 +
4915 mm->get_unmapped_area = arch_get_unmapped_area;
4916 mm->unmap_area = arch_unmap_area;
4917 } else {
4918 mm->mmap_base = mmap_base();
4919 +
4920 +#ifdef CONFIG_PAX_RANDMMAP
4921 + if (mm->pax_flags & MF_PAX_RANDMMAP)
4922 + mm->mmap_base -= mm->delta_mmap + mm->delta_stack;
4923 +#endif
4924 +
4925 mm->get_unmapped_area = arch_get_unmapped_area_topdown;
4926 mm->unmap_area = arch_unmap_area_topdown;
4927 }
4928 @@ -174,10 +186,22 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
4929 */
4930 if (mmap_is_legacy()) {
4931 mm->mmap_base = TASK_UNMAPPED_BASE;
4932 +
4933 +#ifdef CONFIG_PAX_RANDMMAP
4934 + if (mm->pax_flags & MF_PAX_RANDMMAP)
4935 + mm->mmap_base += mm->delta_mmap;
4936 +#endif
4937 +
4938 mm->get_unmapped_area = s390_get_unmapped_area;
4939 mm->unmap_area = arch_unmap_area;
4940 } else {
4941 mm->mmap_base = mmap_base();
4942 +
4943 +#ifdef CONFIG_PAX_RANDMMAP
4944 + if (mm->pax_flags & MF_PAX_RANDMMAP)
4945 + mm->mmap_base -= mm->delta_mmap + mm->delta_stack;
4946 +#endif
4947 +
4948 mm->get_unmapped_area = s390_get_unmapped_area_topdown;
4949 mm->unmap_area = arch_unmap_area_topdown;
4950 }
4951 diff --git a/arch/score/include/asm/cache.h b/arch/score/include/asm/cache.h
4952 index ae3d59f..f65f075 100644
4953 --- a/arch/score/include/asm/cache.h
4954 +++ b/arch/score/include/asm/cache.h
4955 @@ -1,7 +1,9 @@
4956 #ifndef _ASM_SCORE_CACHE_H
4957 #define _ASM_SCORE_CACHE_H
4958
4959 +#include <linux/const.h>
4960 +
4961 #define L1_CACHE_SHIFT 4
4962 -#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
4963 +#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
4964
4965 #endif /* _ASM_SCORE_CACHE_H */
4966 diff --git a/arch/score/include/asm/exec.h b/arch/score/include/asm/exec.h
4967 index f9f3cd5..58ff438 100644
4968 --- a/arch/score/include/asm/exec.h
4969 +++ b/arch/score/include/asm/exec.h
4970 @@ -1,6 +1,6 @@
4971 #ifndef _ASM_SCORE_EXEC_H
4972 #define _ASM_SCORE_EXEC_H
4973
4974 -extern unsigned long arch_align_stack(unsigned long sp);
4975 +#define arch_align_stack(x) (x)
4976
4977 #endif /* _ASM_SCORE_EXEC_H */
4978 diff --git a/arch/score/kernel/process.c b/arch/score/kernel/process.c
4979 index 2707023..1c2a3b7 100644
4980 --- a/arch/score/kernel/process.c
4981 +++ b/arch/score/kernel/process.c
4982 @@ -159,8 +159,3 @@ unsigned long get_wchan(struct task_struct *task)
4983
4984 return task_pt_regs(task)->cp0_epc;
4985 }
4986 -
4987 -unsigned long arch_align_stack(unsigned long sp)
4988 -{
4989 - return sp;
4990 -}
4991 diff --git a/arch/sh/include/asm/cache.h b/arch/sh/include/asm/cache.h
4992 index ef9e555..331bd29 100644
4993 --- a/arch/sh/include/asm/cache.h
4994 +++ b/arch/sh/include/asm/cache.h
4995 @@ -9,10 +9,11 @@
4996 #define __ASM_SH_CACHE_H
4997 #ifdef __KERNEL__
4998
4999 +#include <linux/const.h>
5000 #include <linux/init.h>
5001 #include <cpu/cache.h>
5002
5003 -#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
5004 +#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
5005
5006 #define __read_mostly __attribute__((__section__(".data..read_mostly")))
5007
5008 diff --git a/arch/sh/mm/mmap.c b/arch/sh/mm/mmap.c
5009 index afeb710..d1d1289 100644
5010 --- a/arch/sh/mm/mmap.c
5011 +++ b/arch/sh/mm/mmap.c
5012 @@ -74,8 +74,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
5013 addr = PAGE_ALIGN(addr);
5014
5015 vma = find_vma(mm, addr);
5016 - if (TASK_SIZE - len >= addr &&
5017 - (!vma || addr + len <= vma->vm_start))
5018 + if (TASK_SIZE - len >= addr && check_heap_stack_gap(vma, addr, len))
5019 return addr;
5020 }
5021
5022 @@ -106,7 +105,7 @@ full_search:
5023 }
5024 return -ENOMEM;
5025 }
5026 - if (likely(!vma || addr + len <= vma->vm_start)) {
5027 + if (likely(check_heap_stack_gap(vma, addr, len))) {
5028 /*
5029 * Remember the place where we stopped the search:
5030 */
5031 @@ -157,8 +156,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
5032 addr = PAGE_ALIGN(addr);
5033
5034 vma = find_vma(mm, addr);
5035 - if (TASK_SIZE - len >= addr &&
5036 - (!vma || addr + len <= vma->vm_start))
5037 + if (TASK_SIZE - len >= addr && check_heap_stack_gap(vma, addr, len))
5038 return addr;
5039 }
5040
5041 @@ -179,7 +177,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
5042 /* make sure it can fit in the remaining address space */
5043 if (likely(addr > len)) {
5044 vma = find_vma(mm, addr-len);
5045 - if (!vma || addr <= vma->vm_start) {
5046 + if (check_heap_stack_gap(vma, addr - len, len)) {
5047 /* remember the address as a hint for next time */
5048 return (mm->free_area_cache = addr-len);
5049 }
5050 @@ -188,18 +186,18 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
5051 if (unlikely(mm->mmap_base < len))
5052 goto bottomup;
5053
5054 - addr = mm->mmap_base-len;
5055 - if (do_colour_align)
5056 - addr = COLOUR_ALIGN_DOWN(addr, pgoff);
5057 + addr = mm->mmap_base - len;
5058
5059 do {
5060 + if (do_colour_align)
5061 + addr = COLOUR_ALIGN_DOWN(addr, pgoff);
5062 /*
5063 * Lookup failure means no vma is above this address,
5064 * else if new region fits below vma->vm_start,
5065 * return with success:
5066 */
5067 vma = find_vma(mm, addr);
5068 - if (likely(!vma || addr+len <= vma->vm_start)) {
5069 + if (likely(check_heap_stack_gap(vma, addr, len))) {
5070 /* remember the address as a hint for next time */
5071 return (mm->free_area_cache = addr);
5072 }
5073 @@ -209,10 +207,8 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
5074 mm->cached_hole_size = vma->vm_start - addr;
5075
5076 /* try just below the current vma->vm_start */
5077 - addr = vma->vm_start-len;
5078 - if (do_colour_align)
5079 - addr = COLOUR_ALIGN_DOWN(addr, pgoff);
5080 - } while (likely(len < vma->vm_start));
5081 + addr = skip_heap_stack_gap(vma, len);
5082 + } while (!IS_ERR_VALUE(addr));
5083
5084 bottomup:
5085 /*
5086 diff --git a/arch/sparc/include/asm/atomic_64.h b/arch/sparc/include/asm/atomic_64.h
5087 index ce35a1c..2e7b8f9 100644
5088 --- a/arch/sparc/include/asm/atomic_64.h
5089 +++ b/arch/sparc/include/asm/atomic_64.h
5090 @@ -14,18 +14,40 @@
5091 #define ATOMIC64_INIT(i) { (i) }
5092
5093 #define atomic_read(v) (*(volatile int *)&(v)->counter)
5094 +static inline int atomic_read_unchecked(const atomic_unchecked_t *v)
5095 +{
5096 + return v->counter;
5097 +}
5098 #define atomic64_read(v) (*(volatile long *)&(v)->counter)
5099 +static inline long atomic64_read_unchecked(const atomic64_unchecked_t *v)
5100 +{
5101 + return v->counter;
5102 +}
5103
5104 #define atomic_set(v, i) (((v)->counter) = i)
5105 +static inline void atomic_set_unchecked(atomic_unchecked_t *v, int i)
5106 +{
5107 + v->counter = i;
5108 +}
5109 #define atomic64_set(v, i) (((v)->counter) = i)
5110 +static inline void atomic64_set_unchecked(atomic64_unchecked_t *v, long i)
5111 +{
5112 + v->counter = i;
5113 +}
5114
5115 extern void atomic_add(int, atomic_t *);
5116 +extern void atomic_add_unchecked(int, atomic_unchecked_t *);
5117 extern void atomic64_add(long, atomic64_t *);
5118 +extern void atomic64_add_unchecked(long, atomic64_unchecked_t *);
5119 extern void atomic_sub(int, atomic_t *);
5120 +extern void atomic_sub_unchecked(int, atomic_unchecked_t *);
5121 extern void atomic64_sub(long, atomic64_t *);
5122 +extern void atomic64_sub_unchecked(long, atomic64_unchecked_t *);
5123
5124 extern int atomic_add_ret(int, atomic_t *);
5125 +extern int atomic_add_ret_unchecked(int, atomic_unchecked_t *);
5126 extern long atomic64_add_ret(long, atomic64_t *);
5127 +extern long atomic64_add_ret_unchecked(long, atomic64_unchecked_t *);
5128 extern int atomic_sub_ret(int, atomic_t *);
5129 extern long atomic64_sub_ret(long, atomic64_t *);
5130
5131 @@ -33,13 +55,29 @@ extern long atomic64_sub_ret(long, atomic64_t *);
5132 #define atomic64_dec_return(v) atomic64_sub_ret(1, v)
5133
5134 #define atomic_inc_return(v) atomic_add_ret(1, v)
5135 +static inline int atomic_inc_return_unchecked(atomic_unchecked_t *v)
5136 +{
5137 + return atomic_add_ret_unchecked(1, v);
5138 +}
5139 #define atomic64_inc_return(v) atomic64_add_ret(1, v)
5140 +static inline long atomic64_inc_return_unchecked(atomic64_unchecked_t *v)
5141 +{
5142 + return atomic64_add_ret_unchecked(1, v);
5143 +}
5144
5145 #define atomic_sub_return(i, v) atomic_sub_ret(i, v)
5146 #define atomic64_sub_return(i, v) atomic64_sub_ret(i, v)
5147
5148 #define atomic_add_return(i, v) atomic_add_ret(i, v)
5149 +static inline int atomic_add_return_unchecked(int i, atomic_unchecked_t *v)
5150 +{
5151 + return atomic_add_ret_unchecked(i, v);
5152 +}
5153 #define atomic64_add_return(i, v) atomic64_add_ret(i, v)
5154 +static inline long atomic64_add_return_unchecked(long i, atomic64_unchecked_t *v)
5155 +{
5156 + return atomic64_add_ret_unchecked(i, v);
5157 +}
5158
5159 /*
5160 * atomic_inc_and_test - increment and test
5161 @@ -50,6 +88,10 @@ extern long atomic64_sub_ret(long, atomic64_t *);
5162 * other cases.
5163 */
5164 #define atomic_inc_and_test(v) (atomic_inc_return(v) == 0)
5165 +static inline int atomic_inc_and_test_unchecked(atomic_unchecked_t *v)
5166 +{
5167 + return atomic_inc_return_unchecked(v) == 0;
5168 +}
5169 #define atomic64_inc_and_test(v) (atomic64_inc_return(v) == 0)
5170
5171 #define atomic_sub_and_test(i, v) (atomic_sub_ret(i, v) == 0)
5172 @@ -59,25 +101,60 @@ extern long atomic64_sub_ret(long, atomic64_t *);
5173 #define atomic64_dec_and_test(v) (atomic64_sub_ret(1, v) == 0)
5174
5175 #define atomic_inc(v) atomic_add(1, v)
5176 +static inline void atomic_inc_unchecked(atomic_unchecked_t *v)
5177 +{
5178 + atomic_add_unchecked(1, v);
5179 +}
5180 #define atomic64_inc(v) atomic64_add(1, v)
5181 +static inline void atomic64_inc_unchecked(atomic64_unchecked_t *v)
5182 +{
5183 + atomic64_add_unchecked(1, v);
5184 +}
5185
5186 #define atomic_dec(v) atomic_sub(1, v)
5187 +static inline void atomic_dec_unchecked(atomic_unchecked_t *v)
5188 +{
5189 + atomic_sub_unchecked(1, v);
5190 +}
5191 #define atomic64_dec(v) atomic64_sub(1, v)
5192 +static inline void atomic64_dec_unchecked(atomic64_unchecked_t *v)
5193 +{
5194 + atomic64_sub_unchecked(1, v);
5195 +}
5196
5197 #define atomic_add_negative(i, v) (atomic_add_ret(i, v) < 0)
5198 #define atomic64_add_negative(i, v) (atomic64_add_ret(i, v) < 0)
5199
5200 #define atomic_cmpxchg(v, o, n) (cmpxchg(&((v)->counter), (o), (n)))
5201 +static inline int atomic_cmpxchg_unchecked(atomic_unchecked_t *v, int old, int new)
5202 +{
5203 + return cmpxchg(&v->counter, old, new);
5204 +}
5205 #define atomic_xchg(v, new) (xchg(&((v)->counter), new))
5206 +static inline int atomic_xchg_unchecked(atomic_unchecked_t *v, int new)
5207 +{
5208 + return xchg(&v->counter, new);
5209 +}
5210
5211 static inline int __atomic_add_unless(atomic_t *v, int a, int u)
5212 {
5213 - int c, old;
5214 + int c, old, new;
5215 c = atomic_read(v);
5216 for (;;) {
5217 - if (unlikely(c == (u)))
5218 + if (unlikely(c == u))
5219 break;
5220 - old = atomic_cmpxchg((v), c, c + (a));
5221 +
5222 + asm volatile("addcc %2, %0, %0\n"
5223 +
5224 +#ifdef CONFIG_PAX_REFCOUNT
5225 + "tvs %%icc, 6\n"
5226 +#endif
5227 +
5228 + : "=r" (new)
5229 + : "0" (c), "ir" (a)
5230 + : "cc");
5231 +
5232 + old = atomic_cmpxchg(v, c, new);
5233 if (likely(old == c))
5234 break;
5235 c = old;
5236 @@ -88,20 +165,35 @@ static inline int __atomic_add_unless(atomic_t *v, int a, int u)
5237 #define atomic64_cmpxchg(v, o, n) \
5238 ((__typeof__((v)->counter))cmpxchg(&((v)->counter), (o), (n)))
5239 #define atomic64_xchg(v, new) (xchg(&((v)->counter), new))
5240 +static inline long atomic64_xchg_unchecked(atomic64_unchecked_t *v, long new)
5241 +{
5242 + return xchg(&v->counter, new);
5243 +}
5244
5245 static inline long atomic64_add_unless(atomic64_t *v, long a, long u)
5246 {
5247 - long c, old;
5248 + long c, old, new;
5249 c = atomic64_read(v);
5250 for (;;) {
5251 - if (unlikely(c == (u)))
5252 + if (unlikely(c == u))
5253 break;
5254 - old = atomic64_cmpxchg((v), c, c + (a));
5255 +
5256 + asm volatile("addcc %2, %0, %0\n"
5257 +
5258 +#ifdef CONFIG_PAX_REFCOUNT
5259 + "tvs %%xcc, 6\n"
5260 +#endif
5261 +
5262 + : "=r" (new)
5263 + : "0" (c), "ir" (a)
5264 + : "cc");
5265 +
5266 + old = atomic64_cmpxchg(v, c, new);
5267 if (likely(old == c))
5268 break;
5269 c = old;
5270 }
5271 - return c != (u);
5272 + return c != u;
5273 }
5274
5275 #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
5276 diff --git a/arch/sparc/include/asm/cache.h b/arch/sparc/include/asm/cache.h
5277 index 5bb6991..5c2132e 100644
5278 --- a/arch/sparc/include/asm/cache.h
5279 +++ b/arch/sparc/include/asm/cache.h
5280 @@ -7,10 +7,12 @@
5281 #ifndef _SPARC_CACHE_H
5282 #define _SPARC_CACHE_H
5283
5284 +#include <linux/const.h>
5285 +
5286 #define ARCH_SLAB_MINALIGN __alignof__(unsigned long long)
5287
5288 #define L1_CACHE_SHIFT 5
5289 -#define L1_CACHE_BYTES 32
5290 +#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
5291
5292 #ifdef CONFIG_SPARC32
5293 #define SMP_CACHE_BYTES_SHIFT 5
5294 diff --git a/arch/sparc/include/asm/elf_32.h b/arch/sparc/include/asm/elf_32.h
5295 index 2d4d755..81b6662 100644
5296 --- a/arch/sparc/include/asm/elf_32.h
5297 +++ b/arch/sparc/include/asm/elf_32.h
5298 @@ -114,6 +114,13 @@ typedef struct {
5299
5300 #define ELF_ET_DYN_BASE (TASK_UNMAPPED_BASE)
5301
5302 +#ifdef CONFIG_PAX_ASLR
5303 +#define PAX_ELF_ET_DYN_BASE 0x10000UL
5304 +
5305 +#define PAX_DELTA_MMAP_LEN 16
5306 +#define PAX_DELTA_STACK_LEN 16
5307 +#endif
5308 +
5309 /* This yields a mask that user programs can use to figure out what
5310 instruction set this cpu supports. This can NOT be done in userspace
5311 on Sparc. */
5312 diff --git a/arch/sparc/include/asm/elf_64.h b/arch/sparc/include/asm/elf_64.h
5313 index 7df8b7f..4946269 100644
5314 --- a/arch/sparc/include/asm/elf_64.h
5315 +++ b/arch/sparc/include/asm/elf_64.h
5316 @@ -180,6 +180,13 @@ typedef struct {
5317 #define ELF_ET_DYN_BASE 0x0000010000000000UL
5318 #define COMPAT_ELF_ET_DYN_BASE 0x0000000070000000UL
5319
5320 +#ifdef CONFIG_PAX_ASLR
5321 +#define PAX_ELF_ET_DYN_BASE (test_thread_flag(TIF_32BIT) ? 0x10000UL : 0x100000UL)
5322 +
5323 +#define PAX_DELTA_MMAP_LEN (test_thread_flag(TIF_32BIT) ? 14 : 28)
5324 +#define PAX_DELTA_STACK_LEN (test_thread_flag(TIF_32BIT) ? 15 : 29)
5325 +#endif
5326 +
5327 extern unsigned long sparc64_elf_hwcap;
5328 #define ELF_HWCAP sparc64_elf_hwcap
5329
5330 diff --git a/arch/sparc/include/asm/pgalloc_32.h b/arch/sparc/include/asm/pgalloc_32.h
5331 index e5b169b46..e90b4fa 100644
5332 --- a/arch/sparc/include/asm/pgalloc_32.h
5333 +++ b/arch/sparc/include/asm/pgalloc_32.h
5334 @@ -46,6 +46,7 @@ static inline void pgd_set(pgd_t * pgdp, pmd_t * pmdp)
5335 }
5336
5337 #define pgd_populate(MM, PGD, PMD) pgd_set(PGD, PMD)
5338 +#define pgd_populate_kernel(MM, PGD, PMD) pgd_populate((MM), (PGD), (PMD))
5339
5340 static inline pmd_t *pmd_alloc_one(struct mm_struct *mm,
5341 unsigned long address)
5342 diff --git a/arch/sparc/include/asm/pgalloc_64.h b/arch/sparc/include/asm/pgalloc_64.h
5343 index 40b2d7a..22a665b 100644
5344 --- a/arch/sparc/include/asm/pgalloc_64.h
5345 +++ b/arch/sparc/include/asm/pgalloc_64.h
5346 @@ -26,6 +26,7 @@ static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
5347 }
5348
5349 #define pud_populate(MM, PUD, PMD) pud_set(PUD, PMD)
5350 +#define pud_populate_kernel(MM, PUD, PMD) pud_populate((MM), (PUD), (PMD))
5351
5352 static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr)
5353 {
5354 diff --git a/arch/sparc/include/asm/pgtable_32.h b/arch/sparc/include/asm/pgtable_32.h
5355 index cbbbed5..0983069 100644
5356 --- a/arch/sparc/include/asm/pgtable_32.h
5357 +++ b/arch/sparc/include/asm/pgtable_32.h
5358 @@ -50,6 +50,9 @@ extern unsigned long calc_highpages(void);
5359 #define PAGE_SHARED SRMMU_PAGE_SHARED
5360 #define PAGE_COPY SRMMU_PAGE_COPY
5361 #define PAGE_READONLY SRMMU_PAGE_RDONLY
5362 +#define PAGE_SHARED_NOEXEC SRMMU_PAGE_SHARED_NOEXEC
5363 +#define PAGE_COPY_NOEXEC SRMMU_PAGE_COPY_NOEXEC
5364 +#define PAGE_READONLY_NOEXEC SRMMU_PAGE_RDONLY_NOEXEC
5365 #define PAGE_KERNEL SRMMU_PAGE_KERNEL
5366
5367 /* Top-level page directory */
5368 @@ -61,18 +64,18 @@ extern unsigned long ptr_in_current_pgd;
5369
5370 /* xwr */
5371 #define __P000 PAGE_NONE
5372 -#define __P001 PAGE_READONLY
5373 -#define __P010 PAGE_COPY
5374 -#define __P011 PAGE_COPY
5375 +#define __P001 PAGE_READONLY_NOEXEC
5376 +#define __P010 PAGE_COPY_NOEXEC
5377 +#define __P011 PAGE_COPY_NOEXEC
5378 #define __P100 PAGE_READONLY
5379 #define __P101 PAGE_READONLY
5380 #define __P110 PAGE_COPY
5381 #define __P111 PAGE_COPY
5382
5383 #define __S000 PAGE_NONE
5384 -#define __S001 PAGE_READONLY
5385 -#define __S010 PAGE_SHARED
5386 -#define __S011 PAGE_SHARED
5387 +#define __S001 PAGE_READONLY_NOEXEC
5388 +#define __S010 PAGE_SHARE_NOEXEC
5389 +#define __S011 PAGE_SHARE_NOEXEC
5390 #define __S100 PAGE_READONLY
5391 #define __S101 PAGE_READONLY
5392 #define __S110 PAGE_SHARED
5393 diff --git a/arch/sparc/include/asm/pgtsrmmu.h b/arch/sparc/include/asm/pgtsrmmu.h
5394 index 79da178..c2eede8 100644
5395 --- a/arch/sparc/include/asm/pgtsrmmu.h
5396 +++ b/arch/sparc/include/asm/pgtsrmmu.h
5397 @@ -115,6 +115,11 @@
5398 SRMMU_EXEC | SRMMU_REF)
5399 #define SRMMU_PAGE_RDONLY __pgprot(SRMMU_VALID | SRMMU_CACHE | \
5400 SRMMU_EXEC | SRMMU_REF)
5401 +
5402 +#define SRMMU_PAGE_SHARED_NOEXEC __pgprot(SRMMU_VALID | SRMMU_CACHE | SRMMU_WRITE | SRMMU_REF)
5403 +#define SRMMU_PAGE_COPY_NOEXEC __pgprot(SRMMU_VALID | SRMMU_CACHE | SRMMU_REF)
5404 +#define SRMMU_PAGE_RDONLY_NOEXEC __pgprot(SRMMU_VALID | SRMMU_CACHE | SRMMU_REF)
5405 +
5406 #define SRMMU_PAGE_KERNEL __pgprot(SRMMU_VALID | SRMMU_CACHE | SRMMU_PRIV | \
5407 SRMMU_DIRTY | SRMMU_REF)
5408
5409 diff --git a/arch/sparc/include/asm/spinlock_64.h b/arch/sparc/include/asm/spinlock_64.h
5410 index 9689176..63c18ea 100644
5411 --- a/arch/sparc/include/asm/spinlock_64.h
5412 +++ b/arch/sparc/include/asm/spinlock_64.h
5413 @@ -92,14 +92,19 @@ static inline void arch_spin_lock_flags(arch_spinlock_t *lock, unsigned long fla
5414
5415 /* Multi-reader locks, these are much saner than the 32-bit Sparc ones... */
5416
5417 -static void inline arch_read_lock(arch_rwlock_t *lock)
5418 +static inline void arch_read_lock(arch_rwlock_t *lock)
5419 {
5420 unsigned long tmp1, tmp2;
5421
5422 __asm__ __volatile__ (
5423 "1: ldsw [%2], %0\n"
5424 " brlz,pn %0, 2f\n"
5425 -"4: add %0, 1, %1\n"
5426 +"4: addcc %0, 1, %1\n"
5427 +
5428 +#ifdef CONFIG_PAX_REFCOUNT
5429 +" tvs %%icc, 6\n"
5430 +#endif
5431 +
5432 " cas [%2], %0, %1\n"
5433 " cmp %0, %1\n"
5434 " bne,pn %%icc, 1b\n"
5435 @@ -112,10 +117,10 @@ static void inline arch_read_lock(arch_rwlock_t *lock)
5436 " .previous"
5437 : "=&r" (tmp1), "=&r" (tmp2)
5438 : "r" (lock)
5439 - : "memory");
5440 + : "memory", "cc");
5441 }
5442
5443 -static int inline arch_read_trylock(arch_rwlock_t *lock)
5444 +static inline int arch_read_trylock(arch_rwlock_t *lock)
5445 {
5446 int tmp1, tmp2;
5447
5448 @@ -123,7 +128,12 @@ static int inline arch_read_trylock(arch_rwlock_t *lock)
5449 "1: ldsw [%2], %0\n"
5450 " brlz,a,pn %0, 2f\n"
5451 " mov 0, %0\n"
5452 -" add %0, 1, %1\n"
5453 +" addcc %0, 1, %1\n"
5454 +
5455 +#ifdef CONFIG_PAX_REFCOUNT
5456 +" tvs %%icc, 6\n"
5457 +#endif
5458 +
5459 " cas [%2], %0, %1\n"
5460 " cmp %0, %1\n"
5461 " bne,pn %%icc, 1b\n"
5462 @@ -136,13 +146,18 @@ static int inline arch_read_trylock(arch_rwlock_t *lock)
5463 return tmp1;
5464 }
5465
5466 -static void inline arch_read_unlock(arch_rwlock_t *lock)
5467 +static inline void arch_read_unlock(arch_rwlock_t *lock)
5468 {
5469 unsigned long tmp1, tmp2;
5470
5471 __asm__ __volatile__(
5472 "1: lduw [%2], %0\n"
5473 -" sub %0, 1, %1\n"
5474 +" subcc %0, 1, %1\n"
5475 +
5476 +#ifdef CONFIG_PAX_REFCOUNT
5477 +" tvs %%icc, 6\n"
5478 +#endif
5479 +
5480 " cas [%2], %0, %1\n"
5481 " cmp %0, %1\n"
5482 " bne,pn %%xcc, 1b\n"
5483 @@ -152,7 +167,7 @@ static void inline arch_read_unlock(arch_rwlock_t *lock)
5484 : "memory");
5485 }
5486
5487 -static void inline arch_write_lock(arch_rwlock_t *lock)
5488 +static inline void arch_write_lock(arch_rwlock_t *lock)
5489 {
5490 unsigned long mask, tmp1, tmp2;
5491
5492 @@ -177,7 +192,7 @@ static void inline arch_write_lock(arch_rwlock_t *lock)
5493 : "memory");
5494 }
5495
5496 -static void inline arch_write_unlock(arch_rwlock_t *lock)
5497 +static inline void arch_write_unlock(arch_rwlock_t *lock)
5498 {
5499 __asm__ __volatile__(
5500 " stw %%g0, [%0]"
5501 @@ -186,7 +201,7 @@ static void inline arch_write_unlock(arch_rwlock_t *lock)
5502 : "memory");
5503 }
5504
5505 -static int inline arch_write_trylock(arch_rwlock_t *lock)
5506 +static inline int arch_write_trylock(arch_rwlock_t *lock)
5507 {
5508 unsigned long mask, tmp1, tmp2, result;
5509
5510 diff --git a/arch/sparc/include/asm/thread_info_32.h b/arch/sparc/include/asm/thread_info_32.h
5511 index e6cd224..3a71793 100644
5512 --- a/arch/sparc/include/asm/thread_info_32.h
5513 +++ b/arch/sparc/include/asm/thread_info_32.h
5514 @@ -49,6 +49,8 @@ struct thread_info {
5515 unsigned long w_saved;
5516
5517 struct restart_block restart_block;
5518 +
5519 + unsigned long lowest_stack;
5520 };
5521
5522 /*
5523 diff --git a/arch/sparc/include/asm/thread_info_64.h b/arch/sparc/include/asm/thread_info_64.h
5524 index cfa8c38..13f30d3 100644
5525 --- a/arch/sparc/include/asm/thread_info_64.h
5526 +++ b/arch/sparc/include/asm/thread_info_64.h
5527 @@ -63,6 +63,8 @@ struct thread_info {
5528 struct pt_regs *kern_una_regs;
5529 unsigned int kern_una_insn;
5530
5531 + unsigned long lowest_stack;
5532 +
5533 unsigned long fpregs[0] __attribute__ ((aligned(64)));
5534 };
5535
5536 @@ -193,10 +195,11 @@ register struct thread_info *current_thread_info_reg asm("g6");
5537 #define TIF_UNALIGNED 5 /* allowed to do unaligned accesses */
5538 /* flag bit 6 is available */
5539 #define TIF_32BIT 7 /* 32-bit binary */
5540 -/* flag bit 8 is available */
5541 +#define TIF_GRSEC_SETXID 8 /* update credentials on syscall entry/exit */
5542 #define TIF_SECCOMP 9 /* secure computing */
5543 #define TIF_SYSCALL_AUDIT 10 /* syscall auditing active */
5544 #define TIF_SYSCALL_TRACEPOINT 11 /* syscall tracepoint instrumentation */
5545 +
5546 /* NOTE: Thread flags >= 12 should be ones we have no interest
5547 * in using in assembly, else we can't use the mask as
5548 * an immediate value in instructions such as andcc.
5549 @@ -215,12 +218,18 @@ register struct thread_info *current_thread_info_reg asm("g6");
5550 #define _TIF_SYSCALL_AUDIT (1<<TIF_SYSCALL_AUDIT)
5551 #define _TIF_SYSCALL_TRACEPOINT (1<<TIF_SYSCALL_TRACEPOINT)
5552 #define _TIF_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG)
5553 +#define _TIF_GRSEC_SETXID (1<<TIF_GRSEC_SETXID)
5554
5555 #define _TIF_USER_WORK_MASK ((0xff << TI_FLAG_WSAVED_SHIFT) | \
5556 _TIF_DO_NOTIFY_RESUME_MASK | \
5557 _TIF_NEED_RESCHED)
5558 #define _TIF_DO_NOTIFY_RESUME_MASK (_TIF_NOTIFY_RESUME | _TIF_SIGPENDING)
5559
5560 +#define _TIF_WORK_SYSCALL \
5561 + (_TIF_SYSCALL_TRACE | _TIF_SECCOMP | _TIF_SYSCALL_AUDIT | \
5562 + _TIF_SYSCALL_TRACEPOINT | _TIF_GRSEC_SETXID)
5563 +
5564 +
5565 /*
5566 * Thread-synchronous status.
5567 *
5568 diff --git a/arch/sparc/include/asm/uaccess.h b/arch/sparc/include/asm/uaccess.h
5569 index 0167d26..9acd8ed 100644
5570 --- a/arch/sparc/include/asm/uaccess.h
5571 +++ b/arch/sparc/include/asm/uaccess.h
5572 @@ -1,5 +1,13 @@
5573 #ifndef ___ASM_SPARC_UACCESS_H
5574 #define ___ASM_SPARC_UACCESS_H
5575 +
5576 +#ifdef __KERNEL__
5577 +#ifndef __ASSEMBLY__
5578 +#include <linux/types.h>
5579 +extern void check_object_size(const void *ptr, unsigned long n, bool to);
5580 +#endif
5581 +#endif
5582 +
5583 #if defined(__sparc__) && defined(__arch64__)
5584 #include <asm/uaccess_64.h>
5585 #else
5586 diff --git a/arch/sparc/include/asm/uaccess_32.h b/arch/sparc/include/asm/uaccess_32.h
5587 index 53a28dd..50c38c3 100644
5588 --- a/arch/sparc/include/asm/uaccess_32.h
5589 +++ b/arch/sparc/include/asm/uaccess_32.h
5590 @@ -250,27 +250,46 @@ extern unsigned long __copy_user(void __user *to, const void __user *from, unsig
5591
5592 static inline unsigned long copy_to_user(void __user *to, const void *from, unsigned long n)
5593 {
5594 - if (n && __access_ok((unsigned long) to, n))
5595 + if ((long)n < 0)
5596 + return n;
5597 +
5598 + if (n && __access_ok((unsigned long) to, n)) {
5599 + if (!__builtin_constant_p(n))
5600 + check_object_size(from, n, true);
5601 return __copy_user(to, (__force void __user *) from, n);
5602 - else
5603 + } else
5604 return n;
5605 }
5606
5607 static inline unsigned long __copy_to_user(void __user *to, const void *from, unsigned long n)
5608 {
5609 + if ((long)n < 0)
5610 + return n;
5611 +
5612 + if (!__builtin_constant_p(n))
5613 + check_object_size(from, n, true);
5614 +
5615 return __copy_user(to, (__force void __user *) from, n);
5616 }
5617
5618 static inline unsigned long copy_from_user(void *to, const void __user *from, unsigned long n)
5619 {
5620 - if (n && __access_ok((unsigned long) from, n))
5621 + if ((long)n < 0)
5622 + return n;
5623 +
5624 + if (n && __access_ok((unsigned long) from, n)) {
5625 + if (!__builtin_constant_p(n))
5626 + check_object_size(to, n, false);
5627 return __copy_user((__force void __user *) to, from, n);
5628 - else
5629 + } else
5630 return n;
5631 }
5632
5633 static inline unsigned long __copy_from_user(void *to, const void __user *from, unsigned long n)
5634 {
5635 + if ((long)n < 0)
5636 + return n;
5637 +
5638 return __copy_user((__force void __user *) to, from, n);
5639 }
5640
5641 diff --git a/arch/sparc/include/asm/uaccess_64.h b/arch/sparc/include/asm/uaccess_64.h
5642 index 7c831d8..d440ca7 100644
5643 --- a/arch/sparc/include/asm/uaccess_64.h
5644 +++ b/arch/sparc/include/asm/uaccess_64.h
5645 @@ -10,6 +10,7 @@
5646 #include <linux/compiler.h>
5647 #include <linux/string.h>
5648 #include <linux/thread_info.h>
5649 +#include <linux/kernel.h>
5650 #include <asm/asi.h>
5651 #include <asm/spitfire.h>
5652 #include <asm-generic/uaccess-unaligned.h>
5653 @@ -214,8 +215,15 @@ extern unsigned long copy_from_user_fixup(void *to, const void __user *from,
5654 static inline unsigned long __must_check
5655 copy_from_user(void *to, const void __user *from, unsigned long size)
5656 {
5657 - unsigned long ret = ___copy_from_user(to, from, size);
5658 + unsigned long ret;
5659
5660 + if ((long)size < 0 || size > INT_MAX)
5661 + return size;
5662 +
5663 + if (!__builtin_constant_p(size))
5664 + check_object_size(to, size, false);
5665 +
5666 + ret = ___copy_from_user(to, from, size);
5667 if (unlikely(ret))
5668 ret = copy_from_user_fixup(to, from, size);
5669
5670 @@ -231,8 +239,15 @@ extern unsigned long copy_to_user_fixup(void __user *to, const void *from,
5671 static inline unsigned long __must_check
5672 copy_to_user(void __user *to, const void *from, unsigned long size)
5673 {
5674 - unsigned long ret = ___copy_to_user(to, from, size);
5675 + unsigned long ret;
5676
5677 + if ((long)size < 0 || size > INT_MAX)
5678 + return size;
5679 +
5680 + if (!__builtin_constant_p(size))
5681 + check_object_size(from, size, true);
5682 +
5683 + ret = ___copy_to_user(to, from, size);
5684 if (unlikely(ret))
5685 ret = copy_to_user_fixup(to, from, size);
5686 return ret;
5687 diff --git a/arch/sparc/kernel/Makefile b/arch/sparc/kernel/Makefile
5688 index 6cf591b..b49e65a 100644
5689 --- a/arch/sparc/kernel/Makefile
5690 +++ b/arch/sparc/kernel/Makefile
5691 @@ -3,7 +3,7 @@
5692 #
5693
5694 asflags-y := -ansi
5695 -ccflags-y := -Werror
5696 +#ccflags-y := -Werror
5697
5698 extra-y := head_$(BITS).o
5699
5700 diff --git a/arch/sparc/kernel/process_32.c b/arch/sparc/kernel/process_32.c
5701 index cb36e82..1c1462f 100644
5702 --- a/arch/sparc/kernel/process_32.c
5703 +++ b/arch/sparc/kernel/process_32.c
5704 @@ -126,14 +126,14 @@ void show_regs(struct pt_regs *r)
5705
5706 printk("PSR: %08lx PC: %08lx NPC: %08lx Y: %08lx %s\n",
5707 r->psr, r->pc, r->npc, r->y, print_tainted());
5708 - printk("PC: <%pS>\n", (void *) r->pc);
5709 + printk("PC: <%pA>\n", (void *) r->pc);
5710 printk("%%G: %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
5711 r->u_regs[0], r->u_regs[1], r->u_regs[2], r->u_regs[3],
5712 r->u_regs[4], r->u_regs[5], r->u_regs[6], r->u_regs[7]);
5713 printk("%%O: %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
5714 r->u_regs[8], r->u_regs[9], r->u_regs[10], r->u_regs[11],
5715 r->u_regs[12], r->u_regs[13], r->u_regs[14], r->u_regs[15]);
5716 - printk("RPC: <%pS>\n", (void *) r->u_regs[15]);
5717 + printk("RPC: <%pA>\n", (void *) r->u_regs[15]);
5718
5719 printk("%%L: %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
5720 rw->locals[0], rw->locals[1], rw->locals[2], rw->locals[3],
5721 @@ -168,7 +168,7 @@ void show_stack(struct task_struct *tsk, unsigned long *_ksp)
5722 rw = (struct reg_window32 *) fp;
5723 pc = rw->ins[7];
5724 printk("[%08lx : ", pc);
5725 - printk("%pS ] ", (void *) pc);
5726 + printk("%pA ] ", (void *) pc);
5727 fp = rw->ins[6];
5728 } while (++count < 16);
5729 printk("\n");
5730 diff --git a/arch/sparc/kernel/process_64.c b/arch/sparc/kernel/process_64.c
5731 index aff0c72..9067b39 100644
5732 --- a/arch/sparc/kernel/process_64.c
5733 +++ b/arch/sparc/kernel/process_64.c
5734 @@ -179,14 +179,14 @@ static void show_regwindow(struct pt_regs *regs)
5735 printk("i4: %016lx i5: %016lx i6: %016lx i7: %016lx\n",
5736 rwk->ins[4], rwk->ins[5], rwk->ins[6], rwk->ins[7]);
5737 if (regs->tstate & TSTATE_PRIV)
5738 - printk("I7: <%pS>\n", (void *) rwk->ins[7]);
5739 + printk("I7: <%pA>\n", (void *) rwk->ins[7]);
5740 }
5741
5742 void show_regs(struct pt_regs *regs)
5743 {
5744 printk("TSTATE: %016lx TPC: %016lx TNPC: %016lx Y: %08x %s\n", regs->tstate,
5745 regs->tpc, regs->tnpc, regs->y, print_tainted());
5746 - printk("TPC: <%pS>\n", (void *) regs->tpc);
5747 + printk("TPC: <%pA>\n", (void *) regs->tpc);
5748 printk("g0: %016lx g1: %016lx g2: %016lx g3: %016lx\n",
5749 regs->u_regs[0], regs->u_regs[1], regs->u_regs[2],
5750 regs->u_regs[3]);
5751 @@ -199,7 +199,7 @@ void show_regs(struct pt_regs *regs)
5752 printk("o4: %016lx o5: %016lx sp: %016lx ret_pc: %016lx\n",
5753 regs->u_regs[12], regs->u_regs[13], regs->u_regs[14],
5754 regs->u_regs[15]);
5755 - printk("RPC: <%pS>\n", (void *) regs->u_regs[15]);
5756 + printk("RPC: <%pA>\n", (void *) regs->u_regs[15]);
5757 show_regwindow(regs);
5758 show_stack(current, (unsigned long *) regs->u_regs[UREG_FP]);
5759 }
5760 @@ -284,7 +284,7 @@ void arch_trigger_all_cpu_backtrace(void)
5761 ((tp && tp->task) ? tp->task->pid : -1));
5762
5763 if (gp->tstate & TSTATE_PRIV) {
5764 - printk(" TPC[%pS] O7[%pS] I7[%pS] RPC[%pS]\n",
5765 + printk(" TPC[%pA] O7[%pA] I7[%pA] RPC[%pA]\n",
5766 (void *) gp->tpc,
5767 (void *) gp->o7,
5768 (void *) gp->i7,
5769 diff --git a/arch/sparc/kernel/ptrace_64.c b/arch/sparc/kernel/ptrace_64.c
5770 index 484daba..0674139 100644
5771 --- a/arch/sparc/kernel/ptrace_64.c
5772 +++ b/arch/sparc/kernel/ptrace_64.c
5773 @@ -1057,6 +1057,10 @@ long arch_ptrace(struct task_struct *child, long request,
5774 return ret;
5775 }
5776
5777 +#ifdef CONFIG_GRKERNSEC_SETXID
5778 +extern void gr_delayed_cred_worker(void);
5779 +#endif
5780 +
5781 asmlinkage int syscall_trace_enter(struct pt_regs *regs)
5782 {
5783 int ret = 0;
5784 @@ -1064,6 +1068,11 @@ asmlinkage int syscall_trace_enter(struct pt_regs *regs)
5785 /* do the secure computing check first */
5786 secure_computing_strict(regs->u_regs[UREG_G1]);
5787
5788 +#ifdef CONFIG_GRKERNSEC_SETXID
5789 + if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID)))
5790 + gr_delayed_cred_worker();
5791 +#endif
5792 +
5793 if (test_thread_flag(TIF_SYSCALL_TRACE))
5794 ret = tracehook_report_syscall_entry(regs);
5795
5796 @@ -1084,6 +1093,11 @@ asmlinkage int syscall_trace_enter(struct pt_regs *regs)
5797
5798 asmlinkage void syscall_trace_leave(struct pt_regs *regs)
5799 {
5800 +#ifdef CONFIG_GRKERNSEC_SETXID
5801 + if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID)))
5802 + gr_delayed_cred_worker();
5803 +#endif
5804 +
5805 audit_syscall_exit(regs);
5806
5807 if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
5808 diff --git a/arch/sparc/kernel/sys_sparc_32.c b/arch/sparc/kernel/sys_sparc_32.c
5809 index 0c9b31b..7cb7aee 100644
5810 --- a/arch/sparc/kernel/sys_sparc_32.c
5811 +++ b/arch/sparc/kernel/sys_sparc_32.c
5812 @@ -54,7 +54,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
5813 if (len > TASK_SIZE - PAGE_SIZE)
5814 return -ENOMEM;
5815 if (!addr)
5816 - addr = TASK_UNMAPPED_BASE;
5817 + addr = current->mm->mmap_base;
5818
5819 if (flags & MAP_SHARED)
5820 addr = COLOUR_ALIGN(addr);
5821 @@ -65,7 +65,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
5822 /* At this point: (!vmm || addr < vmm->vm_end). */
5823 if (TASK_SIZE - PAGE_SIZE - len < addr)
5824 return -ENOMEM;
5825 - if (!vmm || addr + len <= vmm->vm_start)
5826 + if (check_heap_stack_gap(vmm, addr, len))
5827 return addr;
5828 addr = vmm->vm_end;
5829 if (flags & MAP_SHARED)
5830 diff --git a/arch/sparc/kernel/sys_sparc_64.c b/arch/sparc/kernel/sys_sparc_64.c
5831 index 275f74f..81bf5b8 100644
5832 --- a/arch/sparc/kernel/sys_sparc_64.c
5833 +++ b/arch/sparc/kernel/sys_sparc_64.c
5834 @@ -124,7 +124,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
5835 /* We do not accept a shared mapping if it would violate
5836 * cache aliasing constraints.
5837 */
5838 - if ((flags & MAP_SHARED) &&
5839 + if ((filp || (flags & MAP_SHARED)) &&
5840 ((addr - (pgoff << PAGE_SHIFT)) & (SHMLBA - 1)))
5841 return -EINVAL;
5842 return addr;
5843 @@ -139,6 +139,10 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
5844 if (filp || (flags & MAP_SHARED))
5845 do_color_align = 1;
5846
5847 +#ifdef CONFIG_PAX_RANDMMAP
5848 + if (!(mm->pax_flags & MF_PAX_RANDMMAP))
5849 +#endif
5850 +
5851 if (addr) {
5852 if (do_color_align)
5853 addr = COLOUR_ALIGN(addr, pgoff);
5854 @@ -146,15 +150,14 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
5855 addr = PAGE_ALIGN(addr);
5856
5857 vma = find_vma(mm, addr);
5858 - if (task_size - len >= addr &&
5859 - (!vma || addr + len <= vma->vm_start))
5860 + if (task_size - len >= addr && check_heap_stack_gap(vma, addr, len))
5861 return addr;
5862 }
5863
5864 if (len > mm->cached_hole_size) {
5865 - start_addr = addr = mm->free_area_cache;
5866 + start_addr = addr = mm->free_area_cache;
5867 } else {
5868 - start_addr = addr = TASK_UNMAPPED_BASE;
5869 + start_addr = addr = mm->mmap_base;
5870 mm->cached_hole_size = 0;
5871 }
5872
5873 @@ -174,14 +177,14 @@ full_search:
5874 vma = find_vma(mm, VA_EXCLUDE_END);
5875 }
5876 if (unlikely(task_size < addr)) {
5877 - if (start_addr != TASK_UNMAPPED_BASE) {
5878 - start_addr = addr = TASK_UNMAPPED_BASE;
5879 + if (start_addr != mm->mmap_base) {
5880 + start_addr = addr = mm->mmap_base;
5881 mm->cached_hole_size = 0;
5882 goto full_search;
5883 }
5884 return -ENOMEM;
5885 }
5886 - if (likely(!vma || addr + len <= vma->vm_start)) {
5887 + if (likely(check_heap_stack_gap(vma, addr, len))) {
5888 /*
5889 * Remember the place where we stopped the search:
5890 */
5891 @@ -215,7 +218,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
5892 /* We do not accept a shared mapping if it would violate
5893 * cache aliasing constraints.
5894 */
5895 - if ((flags & MAP_SHARED) &&
5896 + if ((filp || (flags & MAP_SHARED)) &&
5897 ((addr - (pgoff << PAGE_SHIFT)) & (SHMLBA - 1)))
5898 return -EINVAL;
5899 return addr;
5900 @@ -236,8 +239,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
5901 addr = PAGE_ALIGN(addr);
5902
5903 vma = find_vma(mm, addr);
5904 - if (task_size - len >= addr &&
5905 - (!vma || addr + len <= vma->vm_start))
5906 + if (task_size - len >= addr && check_heap_stack_gap(vma, addr, len))
5907 return addr;
5908 }
5909
5910 @@ -258,7 +260,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
5911 /* make sure it can fit in the remaining address space */
5912 if (likely(addr > len)) {
5913 vma = find_vma(mm, addr-len);
5914 - if (!vma || addr <= vma->vm_start) {
5915 + if (check_heap_stack_gap(vma, addr - len, len)) {
5916 /* remember the address as a hint for next time */
5917 return (mm->free_area_cache = addr-len);
5918 }
5919 @@ -267,18 +269,18 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
5920 if (unlikely(mm->mmap_base < len))
5921 goto bottomup;
5922
5923 - addr = mm->mmap_base-len;
5924 - if (do_color_align)
5925 - addr = COLOUR_ALIGN_DOWN(addr, pgoff);
5926 + addr = mm->mmap_base - len;
5927
5928 do {
5929 + if (do_color_align)
5930 + addr = COLOUR_ALIGN_DOWN(addr, pgoff);
5931 /*
5932 * Lookup failure means no vma is above this address,
5933 * else if new region fits below vma->vm_start,
5934 * return with success:
5935 */
5936 vma = find_vma(mm, addr);
5937 - if (likely(!vma || addr+len <= vma->vm_start)) {
5938 + if (likely(check_heap_stack_gap(vma, addr, len))) {
5939 /* remember the address as a hint for next time */
5940 return (mm->free_area_cache = addr);
5941 }
5942 @@ -288,10 +290,8 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
5943 mm->cached_hole_size = vma->vm_start - addr;
5944
5945 /* try just below the current vma->vm_start */
5946 - addr = vma->vm_start-len;
5947 - if (do_color_align)
5948 - addr = COLOUR_ALIGN_DOWN(addr, pgoff);
5949 - } while (likely(len < vma->vm_start));
5950 + addr = skip_heap_stack_gap(vma, len);
5951 + } while (!IS_ERR_VALUE(addr));
5952
5953 bottomup:
5954 /*
5955 @@ -390,6 +390,12 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
5956 gap == RLIM_INFINITY ||
5957 sysctl_legacy_va_layout) {
5958 mm->mmap_base = TASK_UNMAPPED_BASE + random_factor;
5959 +
5960 +#ifdef CONFIG_PAX_RANDMMAP
5961 + if (mm->pax_flags & MF_PAX_RANDMMAP)
5962 + mm->mmap_base += mm->delta_mmap;
5963 +#endif
5964 +
5965 mm->get_unmapped_area = arch_get_unmapped_area;
5966 mm->unmap_area = arch_unmap_area;
5967 } else {
5968 @@ -402,6 +408,12 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
5969 gap = (task_size / 6 * 5);
5970
5971 mm->mmap_base = PAGE_ALIGN(task_size - gap - random_factor);
5972 +
5973 +#ifdef CONFIG_PAX_RANDMMAP
5974 + if (mm->pax_flags & MF_PAX_RANDMMAP)
5975 + mm->mmap_base -= mm->delta_mmap + mm->delta_stack;
5976 +#endif
5977 +
5978 mm->get_unmapped_area = arch_get_unmapped_area_topdown;
5979 mm->unmap_area = arch_unmap_area_topdown;
5980 }
5981 diff --git a/arch/sparc/kernel/syscalls.S b/arch/sparc/kernel/syscalls.S
5982 index 1d7e274..b39c527 100644
5983 --- a/arch/sparc/kernel/syscalls.S
5984 +++ b/arch/sparc/kernel/syscalls.S
5985 @@ -62,7 +62,7 @@ sys32_rt_sigreturn:
5986 #endif
5987 .align 32
5988 1: ldx [%g6 + TI_FLAGS], %l5
5989 - andcc %l5, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT), %g0
5990 + andcc %l5, _TIF_WORK_SYSCALL, %g0
5991 be,pt %icc, rtrap
5992 nop
5993 call syscall_trace_leave
5994 @@ -179,7 +179,7 @@ linux_sparc_syscall32:
5995
5996 srl %i5, 0, %o5 ! IEU1
5997 srl %i2, 0, %o2 ! IEU0 Group
5998 - andcc %l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT), %g0
5999 + andcc %l0, _TIF_WORK_SYSCALL, %g0
6000 bne,pn %icc, linux_syscall_trace32 ! CTI
6001 mov %i0, %l5 ! IEU1
6002 call %l7 ! CTI Group brk forced
6003 @@ -202,7 +202,7 @@ linux_sparc_syscall:
6004
6005 mov %i3, %o3 ! IEU1
6006 mov %i4, %o4 ! IEU0 Group
6007 - andcc %l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT), %g0
6008 + andcc %l0, _TIF_WORK_SYSCALL, %g0
6009 bne,pn %icc, linux_syscall_trace ! CTI Group
6010 mov %i0, %l5 ! IEU0
6011 2: call %l7 ! CTI Group brk forced
6012 @@ -226,7 +226,7 @@ ret_sys_call:
6013
6014 cmp %o0, -ERESTART_RESTARTBLOCK
6015 bgeu,pn %xcc, 1f
6016 - andcc %l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT), %l6
6017 + andcc %l0, _TIF_WORK_SYSCALL, %l6
6018 80:
6019 /* System call success, clear Carry condition code. */
6020 andn %g3, %g2, %g3
6021 @@ -241,7 +241,7 @@ ret_sys_call:
6022 /* System call failure, set Carry condition code.
6023 * Also, get abs(errno) to return to the process.
6024 */
6025 - andcc %l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT), %l6
6026 + andcc %l0, _TIF_WORK_SYSCALL, %l6
6027 sub %g0, %o0, %o0
6028 or %g3, %g2, %g3
6029 stx %o0, [%sp + PTREGS_OFF + PT_V9_I0]
6030 diff --git a/arch/sparc/kernel/traps_32.c b/arch/sparc/kernel/traps_32.c
6031 index a5785ea..405c5f7 100644
6032 --- a/arch/sparc/kernel/traps_32.c
6033 +++ b/arch/sparc/kernel/traps_32.c
6034 @@ -44,6 +44,8 @@ static void instruction_dump(unsigned long *pc)
6035 #define __SAVE __asm__ __volatile__("save %sp, -0x40, %sp\n\t")
6036 #define __RESTORE __asm__ __volatile__("restore %g0, %g0, %g0\n\t")
6037
6038 +extern void gr_handle_kernel_exploit(void);
6039 +
6040 void die_if_kernel(char *str, struct pt_regs *regs)
6041 {
6042 static int die_counter;
6043 @@ -76,15 +78,17 @@ void die_if_kernel(char *str, struct pt_regs *regs)
6044 count++ < 30 &&
6045 (((unsigned long) rw) >= PAGE_OFFSET) &&
6046 !(((unsigned long) rw) & 0x7)) {
6047 - printk("Caller[%08lx]: %pS\n", rw->ins[7],
6048 + printk("Caller[%08lx]: %pA\n", rw->ins[7],
6049 (void *) rw->ins[7]);
6050 rw = (struct reg_window32 *)rw->ins[6];
6051 }
6052 }
6053 printk("Instruction DUMP:");
6054 instruction_dump ((unsigned long *) regs->pc);
6055 - if(regs->psr & PSR_PS)
6056 + if(regs->psr & PSR_PS) {
6057 + gr_handle_kernel_exploit();
6058 do_exit(SIGKILL);
6059 + }
6060 do_exit(SIGSEGV);
6061 }
6062
6063 diff --git a/arch/sparc/kernel/traps_64.c b/arch/sparc/kernel/traps_64.c
6064 index 3b05e66..6ea2917 100644
6065 --- a/arch/sparc/kernel/traps_64.c
6066 +++ b/arch/sparc/kernel/traps_64.c
6067 @@ -75,7 +75,7 @@ static void dump_tl1_traplog(struct tl1_traplog *p)
6068 i + 1,
6069 p->trapstack[i].tstate, p->trapstack[i].tpc,
6070 p->trapstack[i].tnpc, p->trapstack[i].tt);
6071 - printk("TRAPLOG: TPC<%pS>\n", (void *) p->trapstack[i].tpc);
6072 + printk("TRAPLOG: TPC<%pA>\n", (void *) p->trapstack[i].tpc);
6073 }
6074 }
6075
6076 @@ -95,6 +95,12 @@ void bad_trap(struct pt_regs *regs, long lvl)
6077
6078 lvl -= 0x100;
6079 if (regs->tstate & TSTATE_PRIV) {
6080 +
6081 +#ifdef CONFIG_PAX_REFCOUNT
6082 + if (lvl == 6)
6083 + pax_report_refcount_overflow(regs);
6084 +#endif
6085 +
6086 sprintf(buffer, "Kernel bad sw trap %lx", lvl);
6087 die_if_kernel(buffer, regs);
6088 }
6089 @@ -113,11 +119,16 @@ void bad_trap(struct pt_regs *regs, long lvl)
6090 void bad_trap_tl1(struct pt_regs *regs, long lvl)
6091 {
6092 char buffer[32];
6093 -
6094 +
6095 if (notify_die(DIE_TRAP_TL1, "bad trap tl1", regs,
6096 0, lvl, SIGTRAP) == NOTIFY_STOP)
6097 return;
6098
6099 +#ifdef CONFIG_PAX_REFCOUNT
6100 + if (lvl == 6)
6101 + pax_report_refcount_overflow(regs);
6102 +#endif
6103 +
6104 dump_tl1_traplog((struct tl1_traplog *)(regs + 1));
6105
6106 sprintf (buffer, "Bad trap %lx at tl>0", lvl);
6107 @@ -1141,7 +1152,7 @@ static void cheetah_log_errors(struct pt_regs *regs, struct cheetah_err_info *in
6108 regs->tpc, regs->tnpc, regs->u_regs[UREG_I7], regs->tstate);
6109 printk("%s" "ERROR(%d): ",
6110 (recoverable ? KERN_WARNING : KERN_CRIT), smp_processor_id());
6111 - printk("TPC<%pS>\n", (void *) regs->tpc);
6112 + printk("TPC<%pA>\n", (void *) regs->tpc);
6113 printk("%s" "ERROR(%d): M_SYND(%lx), E_SYND(%lx)%s%s\n",
6114 (recoverable ? KERN_WARNING : KERN_CRIT), smp_processor_id(),
6115 (afsr & CHAFSR_M_SYNDROME) >> CHAFSR_M_SYNDROME_SHIFT,
6116 @@ -1748,7 +1759,7 @@ void cheetah_plus_parity_error(int type, struct pt_regs *regs)
6117 smp_processor_id(),
6118 (type & 0x1) ? 'I' : 'D',
6119 regs->tpc);
6120 - printk(KERN_EMERG "TPC<%pS>\n", (void *) regs->tpc);
6121 + printk(KERN_EMERG "TPC<%pA>\n", (void *) regs->tpc);
6122 panic("Irrecoverable Cheetah+ parity error.");
6123 }
6124
6125 @@ -1756,7 +1767,7 @@ void cheetah_plus_parity_error(int type, struct pt_regs *regs)
6126 smp_processor_id(),
6127 (type & 0x1) ? 'I' : 'D',
6128 regs->tpc);
6129 - printk(KERN_WARNING "TPC<%pS>\n", (void *) regs->tpc);
6130 + printk(KERN_WARNING "TPC<%pA>\n", (void *) regs->tpc);
6131 }
6132
6133 struct sun4v_error_entry {
6134 @@ -1963,9 +1974,9 @@ void sun4v_itlb_error_report(struct pt_regs *regs, int tl)
6135
6136 printk(KERN_EMERG "SUN4V-ITLB: Error at TPC[%lx], tl %d\n",
6137 regs->tpc, tl);
6138 - printk(KERN_EMERG "SUN4V-ITLB: TPC<%pS>\n", (void *) regs->tpc);
6139 + printk(KERN_EMERG "SUN4V-ITLB: TPC<%pA>\n", (void *) regs->tpc);
6140 printk(KERN_EMERG "SUN4V-ITLB: O7[%lx]\n", regs->u_regs[UREG_I7]);
6141 - printk(KERN_EMERG "SUN4V-ITLB: O7<%pS>\n",
6142 + printk(KERN_EMERG "SUN4V-ITLB: O7<%pA>\n",
6143 (void *) regs->u_regs[UREG_I7]);
6144 printk(KERN_EMERG "SUN4V-ITLB: vaddr[%lx] ctx[%lx] "
6145 "pte[%lx] error[%lx]\n",
6146 @@ -1987,9 +1998,9 @@ void sun4v_dtlb_error_report(struct pt_regs *regs, int tl)
6147
6148 printk(KERN_EMERG "SUN4V-DTLB: Error at TPC[%lx], tl %d\n",
6149 regs->tpc, tl);
6150 - printk(KERN_EMERG "SUN4V-DTLB: TPC<%pS>\n", (void *) regs->tpc);
6151 + printk(KERN_EMERG "SUN4V-DTLB: TPC<%pA>\n", (void *) regs->tpc);
6152 printk(KERN_EMERG "SUN4V-DTLB: O7[%lx]\n", regs->u_regs[UREG_I7]);
6153 - printk(KERN_EMERG "SUN4V-DTLB: O7<%pS>\n",
6154 + printk(KERN_EMERG "SUN4V-DTLB: O7<%pA>\n",
6155 (void *) regs->u_regs[UREG_I7]);
6156 printk(KERN_EMERG "SUN4V-DTLB: vaddr[%lx] ctx[%lx] "
6157 "pte[%lx] error[%lx]\n",
6158 @@ -2195,13 +2206,13 @@ void show_stack(struct task_struct *tsk, unsigned long *_ksp)
6159 fp = (unsigned long)sf->fp + STACK_BIAS;
6160 }
6161
6162 - printk(" [%016lx] %pS\n", pc, (void *) pc);
6163 + printk(" [%016lx] %pA\n", pc, (void *) pc);
6164 #ifdef CONFIG_FUNCTION_GRAPH_TRACER
6165 if ((pc + 8UL) == (unsigned long) &return_to_handler) {
6166 int index = tsk->curr_ret_stack;
6167 if (tsk->ret_stack && index >= graph) {
6168 pc = tsk->ret_stack[index - graph].ret;
6169 - printk(" [%016lx] %pS\n", pc, (void *) pc);
6170 + printk(" [%016lx] %pA\n", pc, (void *) pc);
6171 graph++;
6172 }
6173 }
6174 @@ -2226,6 +2237,8 @@ static inline struct reg_window *kernel_stack_up(struct reg_window *rw)
6175 return (struct reg_window *) (fp + STACK_BIAS);
6176 }
6177
6178 +extern void gr_handle_kernel_exploit(void);
6179 +
6180 void die_if_kernel(char *str, struct pt_regs *regs)
6181 {
6182 static int die_counter;
6183 @@ -2254,7 +2267,7 @@ void die_if_kernel(char *str, struct pt_regs *regs)
6184 while (rw &&
6185 count++ < 30 &&
6186 kstack_valid(tp, (unsigned long) rw)) {
6187 - printk("Caller[%016lx]: %pS\n", rw->ins[7],
6188 + printk("Caller[%016lx]: %pA\n", rw->ins[7],
6189 (void *) rw->ins[7]);
6190
6191 rw = kernel_stack_up(rw);
6192 @@ -2267,8 +2280,10 @@ void die_if_kernel(char *str, struct pt_regs *regs)
6193 }
6194 user_instruction_dump ((unsigned int __user *) regs->tpc);
6195 }
6196 - if (regs->tstate & TSTATE_PRIV)
6197 + if (regs->tstate & TSTATE_PRIV) {
6198 + gr_handle_kernel_exploit();
6199 do_exit(SIGKILL);
6200 + }
6201 do_exit(SIGSEGV);
6202 }
6203 EXPORT_SYMBOL(die_if_kernel);
6204 diff --git a/arch/sparc/kernel/unaligned_64.c b/arch/sparc/kernel/unaligned_64.c
6205 index f81d038..e7a4680 100644
6206 --- a/arch/sparc/kernel/unaligned_64.c
6207 +++ b/arch/sparc/kernel/unaligned_64.c
6208 @@ -278,7 +278,7 @@ static void log_unaligned(struct pt_regs *regs)
6209 static DEFINE_RATELIMIT_STATE(ratelimit, 5 * HZ, 5);
6210
6211 if (__ratelimit(&ratelimit)) {
6212 - printk("Kernel unaligned access at TPC[%lx] %pS\n",
6213 + printk("Kernel unaligned access at TPC[%lx] %pA\n",
6214 regs->tpc, (void *) regs->tpc);
6215 }
6216 }
6217 diff --git a/arch/sparc/lib/Makefile b/arch/sparc/lib/Makefile
6218 index dff4096..bd9a388 100644
6219 --- a/arch/sparc/lib/Makefile
6220 +++ b/arch/sparc/lib/Makefile
6221 @@ -2,7 +2,7 @@
6222 #
6223
6224 asflags-y := -ansi -DST_DIV0=0x02
6225 -ccflags-y := -Werror
6226 +#ccflags-y := -Werror
6227
6228 lib-$(CONFIG_SPARC32) += ashrdi3.o
6229 lib-$(CONFIG_SPARC32) += memcpy.o memset.o
6230 diff --git a/arch/sparc/lib/atomic_64.S b/arch/sparc/lib/atomic_64.S
6231 index 4d502da..527c48d 100644
6232 --- a/arch/sparc/lib/atomic_64.S
6233 +++ b/arch/sparc/lib/atomic_64.S
6234 @@ -17,7 +17,12 @@
6235 ENTRY(atomic_add) /* %o0 = increment, %o1 = atomic_ptr */
6236 BACKOFF_SETUP(%o2)
6237 1: lduw [%o1], %g1
6238 - add %g1, %o0, %g7
6239 + addcc %g1, %o0, %g7
6240 +
6241 +#ifdef CONFIG_PAX_REFCOUNT
6242 + tvs %icc, 6
6243 +#endif
6244 +
6245 cas [%o1], %g1, %g7
6246 cmp %g1, %g7
6247 bne,pn %icc, BACKOFF_LABEL(2f, 1b)
6248 @@ -27,10 +32,28 @@ ENTRY(atomic_add) /* %o0 = increment, %o1 = atomic_ptr */
6249 2: BACKOFF_SPIN(%o2, %o3, 1b)
6250 ENDPROC(atomic_add)
6251
6252 +ENTRY(atomic_add_unchecked) /* %o0 = increment, %o1 = atomic_ptr */
6253 + BACKOFF_SETUP(%o2)
6254 +1: lduw [%o1], %g1
6255 + add %g1, %o0, %g7
6256 + cas [%o1], %g1, %g7
6257 + cmp %g1, %g7
6258 + bne,pn %icc, 2f
6259 + nop
6260 + retl
6261 + nop
6262 +2: BACKOFF_SPIN(%o2, %o3, 1b)
6263 +ENDPROC(atomic_add_unchecked)
6264 +
6265 ENTRY(atomic_sub) /* %o0 = decrement, %o1 = atomic_ptr */
6266 BACKOFF_SETUP(%o2)
6267 1: lduw [%o1], %g1
6268 - sub %g1, %o0, %g7
6269 + subcc %g1, %o0, %g7
6270 +
6271 +#ifdef CONFIG_PAX_REFCOUNT
6272 + tvs %icc, 6
6273 +#endif
6274 +
6275 cas [%o1], %g1, %g7
6276 cmp %g1, %g7
6277 bne,pn %icc, BACKOFF_LABEL(2f, 1b)
6278 @@ -40,10 +63,28 @@ ENTRY(atomic_sub) /* %o0 = decrement, %o1 = atomic_ptr */
6279 2: BACKOFF_SPIN(%o2, %o3, 1b)
6280 ENDPROC(atomic_sub)
6281
6282 +ENTRY(atomic_sub_unchecked) /* %o0 = decrement, %o1 = atomic_ptr */
6283 + BACKOFF_SETUP(%o2)
6284 +1: lduw [%o1], %g1
6285 + sub %g1, %o0, %g7
6286 + cas [%o1], %g1, %g7
6287 + cmp %g1, %g7
6288 + bne,pn %icc, 2f
6289 + nop
6290 + retl
6291 + nop
6292 +2: BACKOFF_SPIN(%o2, %o3, 1b)
6293 +ENDPROC(atomic_sub_unchecked)
6294 +
6295 ENTRY(atomic_add_ret) /* %o0 = increment, %o1 = atomic_ptr */
6296 BACKOFF_SETUP(%o2)
6297 1: lduw [%o1], %g1
6298 - add %g1, %o0, %g7
6299 + addcc %g1, %o0, %g7
6300 +
6301 +#ifdef CONFIG_PAX_REFCOUNT
6302 + tvs %icc, 6
6303 +#endif
6304 +
6305 cas [%o1], %g1, %g7
6306 cmp %g1, %g7
6307 bne,pn %icc, BACKOFF_LABEL(2f, 1b)
6308 @@ -53,10 +94,29 @@ ENTRY(atomic_add_ret) /* %o0 = increment, %o1 = atomic_ptr */
6309 2: BACKOFF_SPIN(%o2, %o3, 1b)
6310 ENDPROC(atomic_add_ret)
6311
6312 +ENTRY(atomic_add_ret_unchecked) /* %o0 = increment, %o1 = atomic_ptr */
6313 + BACKOFF_SETUP(%o2)
6314 +1: lduw [%o1], %g1
6315 + addcc %g1, %o0, %g7
6316 + cas [%o1], %g1, %g7
6317 + cmp %g1, %g7
6318 + bne,pn %icc, 2f
6319 + add %g7, %o0, %g7
6320 + sra %g7, 0, %o0
6321 + retl
6322 + nop
6323 +2: BACKOFF_SPIN(%o2, %o3, 1b)
6324 +ENDPROC(atomic_add_ret_unchecked)
6325 +
6326 ENTRY(atomic_sub_ret) /* %o0 = decrement, %o1 = atomic_ptr */
6327 BACKOFF_SETUP(%o2)
6328 1: lduw [%o1], %g1
6329 - sub %g1, %o0, %g7
6330 + subcc %g1, %o0, %g7
6331 +
6332 +#ifdef CONFIG_PAX_REFCOUNT
6333 + tvs %icc, 6
6334 +#endif
6335 +
6336 cas [%o1], %g1, %g7
6337 cmp %g1, %g7
6338 bne,pn %icc, BACKOFF_LABEL(2f, 1b)
6339 @@ -69,7 +129,12 @@ ENDPROC(atomic_sub_ret)
6340 ENTRY(atomic64_add) /* %o0 = increment, %o1 = atomic_ptr */
6341 BACKOFF_SETUP(%o2)
6342 1: ldx [%o1], %g1
6343 - add %g1, %o0, %g7
6344 + addcc %g1, %o0, %g7
6345 +
6346 +#ifdef CONFIG_PAX_REFCOUNT
6347 + tvs %xcc, 6
6348 +#endif
6349 +
6350 casx [%o1], %g1, %g7
6351 cmp %g1, %g7
6352 bne,pn %xcc, BACKOFF_LABEL(2f, 1b)
6353 @@ -79,10 +144,28 @@ ENTRY(atomic64_add) /* %o0 = increment, %o1 = atomic_ptr */
6354 2: BACKOFF_SPIN(%o2, %o3, 1b)
6355 ENDPROC(atomic64_add)
6356
6357 +ENTRY(atomic64_add_unchecked) /* %o0 = increment, %o1 = atomic_ptr */
6358 + BACKOFF_SETUP(%o2)
6359 +1: ldx [%o1], %g1
6360 + addcc %g1, %o0, %g7
6361 + casx [%o1], %g1, %g7
6362 + cmp %g1, %g7
6363 + bne,pn %xcc, 2f
6364 + nop
6365 + retl
6366 + nop
6367 +2: BACKOFF_SPIN(%o2, %o3, 1b)
6368 +ENDPROC(atomic64_add_unchecked)
6369 +
6370 ENTRY(atomic64_sub) /* %o0 = decrement, %o1 = atomic_ptr */
6371 BACKOFF_SETUP(%o2)
6372 1: ldx [%o1], %g1
6373 - sub %g1, %o0, %g7
6374 + subcc %g1, %o0, %g7
6375 +
6376 +#ifdef CONFIG_PAX_REFCOUNT
6377 + tvs %xcc, 6
6378 +#endif
6379 +
6380 casx [%o1], %g1, %g7
6381 cmp %g1, %g7
6382 bne,pn %xcc, BACKOFF_LABEL(2f, 1b)
6383 @@ -92,10 +175,28 @@ ENTRY(atomic64_sub) /* %o0 = decrement, %o1 = atomic_ptr */
6384 2: BACKOFF_SPIN(%o2, %o3, 1b)
6385 ENDPROC(atomic64_sub)
6386
6387 +ENTRY(atomic64_sub_unchecked) /* %o0 = decrement, %o1 = atomic_ptr */
6388 + BACKOFF_SETUP(%o2)
6389 +1: ldx [%o1], %g1
6390 + subcc %g1, %o0, %g7
6391 + casx [%o1], %g1, %g7
6392 + cmp %g1, %g7
6393 + bne,pn %xcc, 2f
6394 + nop
6395 + retl
6396 + nop
6397 +2: BACKOFF_SPIN(%o2, %o3, 1b)
6398 +ENDPROC(atomic64_sub_unchecked)
6399 +
6400 ENTRY(atomic64_add_ret) /* %o0 = increment, %o1 = atomic_ptr */
6401 BACKOFF_SETUP(%o2)
6402 1: ldx [%o1], %g1
6403 - add %g1, %o0, %g7
6404 + addcc %g1, %o0, %g7
6405 +
6406 +#ifdef CONFIG_PAX_REFCOUNT
6407 + tvs %xcc, 6
6408 +#endif
6409 +
6410 casx [%o1], %g1, %g7
6411 cmp %g1, %g7
6412 bne,pn %xcc, BACKOFF_LABEL(2f, 1b)
6413 @@ -105,10 +206,29 @@ ENTRY(atomic64_add_ret) /* %o0 = increment, %o1 = atomic_ptr */
6414 2: BACKOFF_SPIN(%o2, %o3, 1b)
6415 ENDPROC(atomic64_add_ret)
6416
6417 +ENTRY(atomic64_add_ret_unchecked) /* %o0 = increment, %o1 = atomic_ptr */
6418 + BACKOFF_SETUP(%o2)
6419 +1: ldx [%o1], %g1
6420 + addcc %g1, %o0, %g7
6421 + casx [%o1], %g1, %g7
6422 + cmp %g1, %g7
6423 + bne,pn %xcc, 2f
6424 + add %g7, %o0, %g7
6425 + mov %g7, %o0
6426 + retl
6427 + nop
6428 +2: BACKOFF_SPIN(%o2, %o3, 1b)
6429 +ENDPROC(atomic64_add_ret_unchecked)
6430 +
6431 ENTRY(atomic64_sub_ret) /* %o0 = decrement, %o1 = atomic_ptr */
6432 BACKOFF_SETUP(%o2)
6433 1: ldx [%o1], %g1
6434 - sub %g1, %o0, %g7
6435 + subcc %g1, %o0, %g7
6436 +
6437 +#ifdef CONFIG_PAX_REFCOUNT
6438 + tvs %xcc, 6
6439 +#endif
6440 +
6441 casx [%o1], %g1, %g7
6442 cmp %g1, %g7
6443 bne,pn %xcc, BACKOFF_LABEL(2f, 1b)
6444 diff --git a/arch/sparc/lib/ksyms.c b/arch/sparc/lib/ksyms.c
6445 index 3b31218..345c609 100644
6446 --- a/arch/sparc/lib/ksyms.c
6447 +++ b/arch/sparc/lib/ksyms.c
6448 @@ -109,12 +109,18 @@ EXPORT_SYMBOL(__downgrade_write);
6449
6450 /* Atomic counter implementation. */
6451 EXPORT_SYMBOL(atomic_add);
6452 +EXPORT_SYMBOL(atomic_add_unchecked);
6453 EXPORT_SYMBOL(atomic_add_ret);
6454 +EXPORT_SYMBOL(atomic_add_ret_unchecked);
6455 EXPORT_SYMBOL(atomic_sub);
6456 +EXPORT_SYMBOL(atomic_sub_unchecked);
6457 EXPORT_SYMBOL(atomic_sub_ret);
6458 EXPORT_SYMBOL(atomic64_add);
6459 +EXPORT_SYMBOL(atomic64_add_unchecked);
6460 EXPORT_SYMBOL(atomic64_add_ret);
6461 +EXPORT_SYMBOL(atomic64_add_ret_unchecked);
6462 EXPORT_SYMBOL(atomic64_sub);
6463 +EXPORT_SYMBOL(atomic64_sub_unchecked);
6464 EXPORT_SYMBOL(atomic64_sub_ret);
6465
6466 /* Atomic bit operations. */
6467 diff --git a/arch/sparc/mm/Makefile b/arch/sparc/mm/Makefile
6468 index 30c3ecc..736f015 100644
6469 --- a/arch/sparc/mm/Makefile
6470 +++ b/arch/sparc/mm/Makefile
6471 @@ -2,7 +2,7 @@
6472 #
6473
6474 asflags-y := -ansi
6475 -ccflags-y := -Werror
6476 +#ccflags-y := -Werror
6477
6478 obj-$(CONFIG_SPARC64) += ultra.o tlb.o tsb.o gup.o
6479 obj-y += fault_$(BITS).o
6480 diff --git a/arch/sparc/mm/fault_32.c b/arch/sparc/mm/fault_32.c
6481 index f46cf6b..cc0666bae 100644
6482 --- a/arch/sparc/mm/fault_32.c
6483 +++ b/arch/sparc/mm/fault_32.c
6484 @@ -21,6 +21,9 @@
6485 #include <linux/perf_event.h>
6486 #include <linux/interrupt.h>
6487 #include <linux/kdebug.h>
6488 +#include <linux/slab.h>
6489 +#include <linux/pagemap.h>
6490 +#include <linux/compiler.h>
6491
6492 #include <asm/page.h>
6493 #include <asm/pgtable.h>
6494 @@ -177,6 +180,277 @@ static unsigned long compute_si_addr(struct pt_regs *regs, int text_fault)
6495 return safe_compute_effective_address(regs, insn);
6496 }
6497
6498 +#ifdef CONFIG_PAX_PAGEEXEC
6499 +#ifdef CONFIG_PAX_DLRESOLVE
6500 +static void pax_emuplt_close(struct vm_area_struct *vma)
6501 +{
6502 + vma->vm_mm->call_dl_resolve = 0UL;
6503 +}
6504 +
6505 +static int pax_emuplt_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
6506 +{
6507 + unsigned int *kaddr;
6508 +
6509 + vmf->page = alloc_page(GFP_HIGHUSER);
6510 + if (!vmf->page)
6511 + return VM_FAULT_OOM;
6512 +
6513 + kaddr = kmap(vmf->page);
6514 + memset(kaddr, 0, PAGE_SIZE);
6515 + kaddr[0] = 0x9DE3BFA8U; /* save */
6516 + flush_dcache_page(vmf->page);
6517 + kunmap(vmf->page);
6518 + return VM_FAULT_MAJOR;
6519 +}
6520 +
6521 +static const struct vm_operations_struct pax_vm_ops = {
6522 + .close = pax_emuplt_close,
6523 + .fault = pax_emuplt_fault
6524 +};
6525 +
6526 +static int pax_insert_vma(struct vm_area_struct *vma, unsigned long addr)
6527 +{
6528 + int ret;
6529 +
6530 + INIT_LIST_HEAD(&vma->anon_vma_chain);
6531 + vma->vm_mm = current->mm;
6532 + vma->vm_start = addr;
6533 + vma->vm_end = addr + PAGE_SIZE;
6534 + vma->vm_flags = VM_READ | VM_EXEC | VM_MAYREAD | VM_MAYEXEC;
6535 + vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
6536 + vma->vm_ops = &pax_vm_ops;
6537 +
6538 + ret = insert_vm_struct(current->mm, vma);
6539 + if (ret)
6540 + return ret;
6541 +
6542 + ++current->mm->total_vm;
6543 + return 0;
6544 +}
6545 +#endif
6546 +
6547 +/*
6548 + * PaX: decide what to do with offenders (regs->pc = fault address)
6549 + *
6550 + * returns 1 when task should be killed
6551 + * 2 when patched PLT trampoline was detected
6552 + * 3 when unpatched PLT trampoline was detected
6553 + */
6554 +static int pax_handle_fetch_fault(struct pt_regs *regs)
6555 +{
6556 +
6557 +#ifdef CONFIG_PAX_EMUPLT
6558 + int err;
6559 +
6560 + do { /* PaX: patched PLT emulation #1 */
6561 + unsigned int sethi1, sethi2, jmpl;
6562 +
6563 + err = get_user(sethi1, (unsigned int *)regs->pc);
6564 + err |= get_user(sethi2, (unsigned int *)(regs->pc+4));
6565 + err |= get_user(jmpl, (unsigned int *)(regs->pc+8));
6566 +
6567 + if (err)
6568 + break;
6569 +
6570 + if ((sethi1 & 0xFFC00000U) == 0x03000000U &&
6571 + (sethi2 & 0xFFC00000U) == 0x03000000U &&
6572 + (jmpl & 0xFFFFE000U) == 0x81C06000U)
6573 + {
6574 + unsigned int addr;
6575 +
6576 + regs->u_regs[UREG_G1] = (sethi2 & 0x003FFFFFU) << 10;
6577 + addr = regs->u_regs[UREG_G1];
6578 + addr += (((jmpl | 0xFFFFE000U) ^ 0x00001000U) + 0x00001000U);
6579 + regs->pc = addr;
6580 + regs->npc = addr+4;
6581 + return 2;
6582 + }
6583 + } while (0);
6584 +
6585 + do { /* PaX: patched PLT emulation #2 */
6586 + unsigned int ba;
6587 +
6588 + err = get_user(ba, (unsigned int *)regs->pc);
6589 +
6590 + if (err)
6591 + break;
6592 +
6593 + if ((ba & 0xFFC00000U) == 0x30800000U || (ba & 0xFFF80000U) == 0x30480000U) {
6594 + unsigned int addr;
6595 +
6596 + if ((ba & 0xFFC00000U) == 0x30800000U)
6597 + addr = regs->pc + ((((ba | 0xFFC00000U) ^ 0x00200000U) + 0x00200000U) << 2);
6598 + else
6599 + addr = regs->pc + ((((ba | 0xFFF80000U) ^ 0x00040000U) + 0x00040000U) << 2);
6600 + regs->pc = addr;
6601 + regs->npc = addr+4;
6602 + return 2;
6603 + }
6604 + } while (0);
6605 +
6606 + do { /* PaX: patched PLT emulation #3 */
6607 + unsigned int sethi, bajmpl, nop;
6608 +
6609 + err = get_user(sethi, (unsigned int *)regs->pc);
6610 + err |= get_user(bajmpl, (unsigned int *)(regs->pc+4));
6611 + err |= get_user(nop, (unsigned int *)(regs->pc+8));
6612 +
6613 + if (err)
6614 + break;
6615 +
6616 + if ((sethi & 0xFFC00000U) == 0x03000000U &&
6617 + ((bajmpl & 0xFFFFE000U) == 0x81C06000U || (bajmpl & 0xFFF80000U) == 0x30480000U) &&
6618 + nop == 0x01000000U)
6619 + {
6620 + unsigned int addr;
6621 +
6622 + addr = (sethi & 0x003FFFFFU) << 10;
6623 + regs->u_regs[UREG_G1] = addr;
6624 + if ((bajmpl & 0xFFFFE000U) == 0x81C06000U)
6625 + addr += (((jmpl | 0xFFFFE000U) ^ 0x00001000U) + 0x00001000U);
6626 + else
6627 + addr = regs->pc + ((((bajmpl | 0xFFF80000U) ^ 0x00040000U) + 0x00040000U) << 2);
6628 + regs->pc = addr;
6629 + regs->npc = addr+4;
6630 + return 2;
6631 + }
6632 + } while (0);
6633 +
6634 + do { /* PaX: unpatched PLT emulation step 1 */
6635 + unsigned int sethi, ba, nop;
6636 +
6637 + err = get_user(sethi, (unsigned int *)regs->pc);
6638 + err |= get_user(ba, (unsigned int *)(regs->pc+4));
6639 + err |= get_user(nop, (unsigned int *)(regs->pc+8));
6640 +
6641 + if (err)
6642 + break;
6643 +
6644 + if ((sethi & 0xFFC00000U) == 0x03000000U &&
6645 + ((ba & 0xFFC00000U) == 0x30800000U || (ba & 0xFFF80000U) == 0x30680000U) &&
6646 + nop == 0x01000000U)
6647 + {
6648 + unsigned int addr, save, call;
6649 +
6650 + if ((ba & 0xFFC00000U) == 0x30800000U)
6651 + addr = regs->pc + 4 + ((((ba | 0xFFC00000U) ^ 0x00200000U) + 0x00200000U) << 2);
6652 + else
6653 + addr = regs->pc + 4 + ((((ba | 0xFFF80000U) ^ 0x00040000U) + 0x00040000U) << 2);
6654 +
6655 + err = get_user(save, (unsigned int *)addr);
6656 + err |= get_user(call, (unsigned int *)(addr+4));
6657 + err |= get_user(nop, (unsigned int *)(addr+8));
6658 + if (err)
6659 + break;
6660 +
6661 +#ifdef CONFIG_PAX_DLRESOLVE
6662 + if (save == 0x9DE3BFA8U &&
6663 + (call & 0xC0000000U) == 0x40000000U &&
6664 + nop == 0x01000000U)
6665 + {
6666 + struct vm_area_struct *vma;
6667 + unsigned long call_dl_resolve;
6668 +
6669 + down_read(&current->mm->mmap_sem);
6670 + call_dl_resolve = current->mm->call_dl_resolve;
6671 + up_read(&current->mm->mmap_sem);
6672 + if (likely(call_dl_resolve))
6673 + goto emulate;
6674 +
6675 + vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
6676 +
6677 + down_write(&current->mm->mmap_sem);
6678 + if (current->mm->call_dl_resolve) {
6679 + call_dl_resolve = current->mm->call_dl_resolve;
6680 + up_write(&current->mm->mmap_sem);
6681 + if (vma)
6682 + kmem_cache_free(vm_area_cachep, vma);
6683 + goto emulate;
6684 + }
6685 +
6686 + call_dl_resolve = get_unmapped_area(NULL, 0UL, PAGE_SIZE, 0UL, MAP_PRIVATE);
6687 + if (!vma || (call_dl_resolve & ~PAGE_MASK)) {
6688 + up_write(&current->mm->mmap_sem);
6689 + if (vma)
6690 + kmem_cache_free(vm_area_cachep, vma);
6691 + return 1;
6692 + }
6693 +
6694 + if (pax_insert_vma(vma, call_dl_resolve)) {
6695 + up_write(&current->mm->mmap_sem);
6696 + kmem_cache_free(vm_area_cachep, vma);
6697 + return 1;
6698 + }
6699 +
6700 + current->mm->call_dl_resolve = call_dl_resolve;
6701 + up_write(&current->mm->mmap_sem);
6702 +
6703 +emulate:
6704 + regs->u_regs[UREG_G1] = (sethi & 0x003FFFFFU) << 10;
6705 + regs->pc = call_dl_resolve;
6706 + regs->npc = addr+4;
6707 + return 3;
6708 + }
6709 +#endif
6710 +
6711 + /* PaX: glibc 2.4+ generates sethi/jmpl instead of save/call */
6712 + if ((save & 0xFFC00000U) == 0x05000000U &&
6713 + (call & 0xFFFFE000U) == 0x85C0A000U &&
6714 + nop == 0x01000000U)
6715 + {
6716 + regs->u_regs[UREG_G1] = (sethi & 0x003FFFFFU) << 10;
6717 + regs->u_regs[UREG_G2] = addr + 4;
6718 + addr = (save & 0x003FFFFFU) << 10;
6719 + addr += (((call | 0xFFFFE000U) ^ 0x00001000U) + 0x00001000U);
6720 + regs->pc = addr;
6721 + regs->npc = addr+4;
6722 + return 3;
6723 + }
6724 + }
6725 + } while (0);
6726 +
6727 + do { /* PaX: unpatched PLT emulation step 2 */
6728 + unsigned int save, call, nop;
6729 +
6730 + err = get_user(save, (unsigned int *)(regs->pc-4));
6731 + err |= get_user(call, (unsigned int *)regs->pc);
6732 + err |= get_user(nop, (unsigned int *)(regs->pc+4));
6733 + if (err)
6734 + break;
6735 +
6736 + if (save == 0x9DE3BFA8U &&
6737 + (call & 0xC0000000U) == 0x40000000U &&
6738 + nop == 0x01000000U)
6739 + {
6740 + unsigned int dl_resolve = regs->pc + ((((call | 0xC0000000U) ^ 0x20000000U) + 0x20000000U) << 2);
6741 +
6742 + regs->u_regs[UREG_RETPC] = regs->pc;
6743 + regs->pc = dl_resolve;
6744 + regs->npc = dl_resolve+4;
6745 + return 3;
6746 + }
6747 + } while (0);
6748 +#endif
6749 +
6750 + return 1;
6751 +}
6752 +
6753 +void pax_report_insns(struct pt_regs *regs, void *pc, void *sp)
6754 +{
6755 + unsigned long i;
6756 +
6757 + printk(KERN_ERR "PAX: bytes at PC: ");
6758 + for (i = 0; i < 8; i++) {
6759 + unsigned int c;
6760 + if (get_user(c, (unsigned int *)pc+i))
6761 + printk(KERN_CONT "???????? ");
6762 + else
6763 + printk(KERN_CONT "%08x ", c);
6764 + }
6765 + printk("\n");
6766 +}
6767 +#endif
6768 +
6769 static noinline void do_fault_siginfo(int code, int sig, struct pt_regs *regs,
6770 int text_fault)
6771 {
6772 @@ -248,6 +522,24 @@ good_area:
6773 if (!(vma->vm_flags & VM_WRITE))
6774 goto bad_area;
6775 } else {
6776 +
6777 +#ifdef CONFIG_PAX_PAGEEXEC
6778 + if ((mm->pax_flags & MF_PAX_PAGEEXEC) && text_fault && !(vma->vm_flags & VM_EXEC)) {
6779 + up_read(&mm->mmap_sem);
6780 + switch (pax_handle_fetch_fault(regs)) {
6781 +
6782 +#ifdef CONFIG_PAX_EMUPLT
6783 + case 2:
6784 + case 3:
6785 + return;
6786 +#endif
6787 +
6788 + }
6789 + pax_report_fault(regs, (void *)regs->pc, (void *)regs->u_regs[UREG_FP]);
6790 + do_group_exit(SIGKILL);
6791 + }
6792 +#endif
6793 +
6794 /* Allow reads even for write-only mappings */
6795 if (!(vma->vm_flags & (VM_READ | VM_EXEC)))
6796 goto bad_area;
6797 diff --git a/arch/sparc/mm/fault_64.c b/arch/sparc/mm/fault_64.c
6798 index 1fe0429..8dd5dd5 100644
6799 --- a/arch/sparc/mm/fault_64.c
6800 +++ b/arch/sparc/mm/fault_64.c
6801 @@ -21,6 +21,9 @@
6802 #include <linux/kprobes.h>
6803 #include <linux/kdebug.h>
6804 #include <linux/percpu.h>
6805 +#include <linux/slab.h>
6806 +#include <linux/pagemap.h>
6807 +#include <linux/compiler.h>
6808
6809 #include <asm/page.h>
6810 #include <asm/pgtable.h>
6811 @@ -74,7 +77,7 @@ static void __kprobes bad_kernel_pc(struct pt_regs *regs, unsigned long vaddr)
6812 printk(KERN_CRIT "OOPS: Bogus kernel PC [%016lx] in fault handler\n",
6813 regs->tpc);
6814 printk(KERN_CRIT "OOPS: RPC [%016lx]\n", regs->u_regs[15]);
6815 - printk("OOPS: RPC <%pS>\n", (void *) regs->u_regs[15]);
6816 + printk("OOPS: RPC <%pA>\n", (void *) regs->u_regs[15]);
6817 printk(KERN_CRIT "OOPS: Fault was to vaddr[%lx]\n", vaddr);
6818 dump_stack();
6819 unhandled_fault(regs->tpc, current, regs);
6820 @@ -272,6 +275,466 @@ static void noinline __kprobes bogus_32bit_fault_address(struct pt_regs *regs,
6821 show_regs(regs);
6822 }
6823
6824 +#ifdef CONFIG_PAX_PAGEEXEC
6825 +#ifdef CONFIG_PAX_DLRESOLVE
6826 +static void pax_emuplt_close(struct vm_area_struct *vma)
6827 +{
6828 + vma->vm_mm->call_dl_resolve = 0UL;
6829 +}
6830 +
6831 +static int pax_emuplt_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
6832 +{
6833 + unsigned int *kaddr;
6834 +
6835 + vmf->page = alloc_page(GFP_HIGHUSER);
6836 + if (!vmf->page)
6837 + return VM_FAULT_OOM;
6838 +
6839 + kaddr = kmap(vmf->page);
6840 + memset(kaddr, 0, PAGE_SIZE);
6841 + kaddr[0] = 0x9DE3BFA8U; /* save */
6842 + flush_dcache_page(vmf->page);
6843 + kunmap(vmf->page);
6844 + return VM_FAULT_MAJOR;
6845 +}
6846 +
6847 +static const struct vm_operations_struct pax_vm_ops = {
6848 + .close = pax_emuplt_close,
6849 + .fault = pax_emuplt_fault
6850 +};
6851 +
6852 +static int pax_insert_vma(struct vm_area_struct *vma, unsigned long addr)
6853 +{
6854 + int ret;
6855 +
6856 + INIT_LIST_HEAD(&vma->anon_vma_chain);
6857 + vma->vm_mm = current->mm;
6858 + vma->vm_start = addr;
6859 + vma->vm_end = addr + PAGE_SIZE;
6860 + vma->vm_flags = VM_READ | VM_EXEC | VM_MAYREAD | VM_MAYEXEC;
6861 + vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
6862 + vma->vm_ops = &pax_vm_ops;
6863 +
6864 + ret = insert_vm_struct(current->mm, vma);
6865 + if (ret)
6866 + return ret;
6867 +
6868 + ++current->mm->total_vm;
6869 + return 0;
6870 +}
6871 +#endif
6872 +
6873 +/*
6874 + * PaX: decide what to do with offenders (regs->tpc = fault address)
6875 + *
6876 + * returns 1 when task should be killed
6877 + * 2 when patched PLT trampoline was detected
6878 + * 3 when unpatched PLT trampoline was detected
6879 + */
6880 +static int pax_handle_fetch_fault(struct pt_regs *regs)
6881 +{
6882 +
6883 +#ifdef CONFIG_PAX_EMUPLT
6884 + int err;
6885 +
6886 + do { /* PaX: patched PLT emulation #1 */
6887 + unsigned int sethi1, sethi2, jmpl;
6888 +
6889 + err = get_user(sethi1, (unsigned int *)regs->tpc);
6890 + err |= get_user(sethi2, (unsigned int *)(regs->tpc+4));
6891 + err |= get_user(jmpl, (unsigned int *)(regs->tpc+8));
6892 +
6893 + if (err)
6894 + break;
6895 +
6896 + if ((sethi1 & 0xFFC00000U) == 0x03000000U &&
6897 + (sethi2 & 0xFFC00000U) == 0x03000000U &&
6898 + (jmpl & 0xFFFFE000U) == 0x81C06000U)
6899 + {
6900 + unsigned long addr;
6901 +
6902 + regs->u_regs[UREG_G1] = (sethi2 & 0x003FFFFFU) << 10;
6903 + addr = regs->u_regs[UREG_G1];
6904 + addr += (((jmpl | 0xFFFFFFFFFFFFE000UL) ^ 0x00001000UL) + 0x00001000UL);
6905 +
6906 + if (test_thread_flag(TIF_32BIT))
6907 + addr &= 0xFFFFFFFFUL;
6908 +
6909 + regs->tpc = addr;
6910 + regs->tnpc = addr+4;
6911 + return 2;
6912 + }
6913 + } while (0);
6914 +
6915 + do { /* PaX: patched PLT emulation #2 */
6916 + unsigned int ba;
6917 +
6918 + err = get_user(ba, (unsigned int *)regs->tpc);
6919 +
6920 + if (err)
6921 + break;
6922 +
6923 + if ((ba & 0xFFC00000U) == 0x30800000U || (ba & 0xFFF80000U) == 0x30480000U) {
6924 + unsigned long addr;
6925 +
6926 + if ((ba & 0xFFC00000U) == 0x30800000U)
6927 + addr = regs->tpc + ((((ba | 0xFFFFFFFFFFC00000UL) ^ 0x00200000UL) + 0x00200000UL) << 2);
6928 + else
6929 + addr = regs->tpc + ((((ba | 0xFFFFFFFFFFF80000UL) ^ 0x00040000UL) + 0x00040000UL) << 2);
6930 +
6931 + if (test_thread_flag(TIF_32BIT))
6932 + addr &= 0xFFFFFFFFUL;
6933 +
6934 + regs->tpc = addr;
6935 + regs->tnpc = addr+4;
6936 + return 2;
6937 + }
6938 + } while (0);
6939 +
6940 + do { /* PaX: patched PLT emulation #3 */
6941 + unsigned int sethi, bajmpl, nop;
6942 +
6943 + err = get_user(sethi, (unsigned int *)regs->tpc);
6944 + err |= get_user(bajmpl, (unsigned int *)(regs->tpc+4));
6945 + err |= get_user(nop, (unsigned int *)(regs->tpc+8));
6946 +
6947 + if (err)
6948 + break;
6949 +
6950 + if ((sethi & 0xFFC00000U) == 0x03000000U &&
6951 + ((bajmpl & 0xFFFFE000U) == 0x81C06000U || (bajmpl & 0xFFF80000U) == 0x30480000U) &&
6952 + nop == 0x01000000U)
6953 + {
6954 + unsigned long addr;
6955 +
6956 + addr = (sethi & 0x003FFFFFU) << 10;
6957 + regs->u_regs[UREG_G1] = addr;
6958 + if ((bajmpl & 0xFFFFE000U) == 0x81C06000U)
6959 + addr += (((bajmpl | 0xFFFFFFFFFFFFE000UL) ^ 0x00001000UL) + 0x00001000UL);
6960 + else
6961 + addr = regs->tpc + ((((bajmpl | 0xFFFFFFFFFFF80000UL) ^ 0x00040000UL) + 0x00040000UL) << 2);
6962 +
6963 + if (test_thread_flag(TIF_32BIT))
6964 + addr &= 0xFFFFFFFFUL;
6965 +
6966 + regs->tpc = addr;
6967 + regs->tnpc = addr+4;
6968 + return 2;
6969 + }
6970 + } while (0);
6971 +
6972 + do { /* PaX: patched PLT emulation #4 */
6973 + unsigned int sethi, mov1, call, mov2;
6974 +
6975 + err = get_user(sethi, (unsigned int *)regs->tpc);
6976 + err |= get_user(mov1, (unsigned int *)(regs->tpc+4));
6977 + err |= get_user(call, (unsigned int *)(regs->tpc+8));
6978 + err |= get_user(mov2, (unsigned int *)(regs->tpc+12));
6979 +
6980 + if (err)
6981 + break;
6982 +
6983 + if ((sethi & 0xFFC00000U) == 0x03000000U &&
6984 + mov1 == 0x8210000FU &&
6985 + (call & 0xC0000000U) == 0x40000000U &&
6986 + mov2 == 0x9E100001U)
6987 + {
6988 + unsigned long addr;
6989 +
6990 + regs->u_regs[UREG_G1] = regs->u_regs[UREG_RETPC];
6991 + addr = regs->tpc + 4 + ((((call | 0xFFFFFFFFC0000000UL) ^ 0x20000000UL) + 0x20000000UL) << 2);
6992 +
6993 + if (test_thread_flag(TIF_32BIT))
6994 + addr &= 0xFFFFFFFFUL;
6995 +
6996 + regs->tpc = addr;
6997 + regs->tnpc = addr+4;
6998 + return 2;
6999 + }
7000 + } while (0);
7001 +
7002 + do { /* PaX: patched PLT emulation #5 */
7003 + unsigned int sethi, sethi1, sethi2, or1, or2, sllx, jmpl, nop;
7004 +
7005 + err = get_user(sethi, (unsigned int *)regs->tpc);
7006 + err |= get_user(sethi1, (unsigned int *)(regs->tpc+4));
7007 + err |= get_user(sethi2, (unsigned int *)(regs->tpc+8));
7008 + err |= get_user(or1, (unsigned int *)(regs->tpc+12));
7009 + err |= get_user(or2, (unsigned int *)(regs->tpc+16));
7010 + err |= get_user(sllx, (unsigned int *)(regs->tpc+20));
7011 + err |= get_user(jmpl, (unsigned int *)(regs->tpc+24));
7012 + err |= get_user(nop, (unsigned int *)(regs->tpc+28));
7013 +
7014 + if (err)
7015 + break;
7016 +
7017 + if ((sethi & 0xFFC00000U) == 0x03000000U &&
7018 + (sethi1 & 0xFFC00000U) == 0x03000000U &&
7019 + (sethi2 & 0xFFC00000U) == 0x0B000000U &&
7020 + (or1 & 0xFFFFE000U) == 0x82106000U &&
7021 + (or2 & 0xFFFFE000U) == 0x8A116000U &&
7022 + sllx == 0x83287020U &&
7023 + jmpl == 0x81C04005U &&
7024 + nop == 0x01000000U)
7025 + {
7026 + unsigned long addr;
7027 +
7028 + regs->u_regs[UREG_G1] = ((sethi1 & 0x003FFFFFU) << 10) | (or1 & 0x000003FFU);
7029 + regs->u_regs[UREG_G1] <<= 32;
7030 + regs->u_regs[UREG_G5] = ((sethi2 & 0x003FFFFFU) << 10) | (or2 & 0x000003FFU);
7031 + addr = regs->u_regs[UREG_G1] + regs->u_regs[UREG_G5];
7032 + regs->tpc = addr;
7033 + regs->tnpc = addr+4;
7034 + return 2;
7035 + }
7036 + } while (0);
7037 +
7038 + do { /* PaX: patched PLT emulation #6 */
7039 + unsigned int sethi, sethi1, sethi2, sllx, or, jmpl, nop;
7040 +
7041 + err = get_user(sethi, (unsigned int *)regs->tpc);
7042 + err |= get_user(sethi1, (unsigned int *)(regs->tpc+4));
7043 + err |= get_user(sethi2, (unsigned int *)(regs->tpc+8));
7044 + err |= get_user(sllx, (unsigned int *)(regs->tpc+12));
7045 + err |= get_user(or, (unsigned int *)(regs->tpc+16));
7046 + err |= get_user(jmpl, (unsigned int *)(regs->tpc+20));
7047 + err |= get_user(nop, (unsigned int *)(regs->tpc+24));
7048 +
7049 + if (err)
7050 + break;
7051 +
7052 + if ((sethi & 0xFFC00000U) == 0x03000000U &&
7053 + (sethi1 & 0xFFC00000U) == 0x03000000U &&
7054 + (sethi2 & 0xFFC00000U) == 0x0B000000U &&
7055 + sllx == 0x83287020U &&
7056 + (or & 0xFFFFE000U) == 0x8A116000U &&
7057 + jmpl == 0x81C04005U &&
7058 + nop == 0x01000000U)
7059 + {
7060 + unsigned long addr;
7061 +
7062 + regs->u_regs[UREG_G1] = (sethi1 & 0x003FFFFFU) << 10;
7063 + regs->u_regs[UREG_G1] <<= 32;
7064 + regs->u_regs[UREG_G5] = ((sethi2 & 0x003FFFFFU) << 10) | (or & 0x3FFU);
7065 + addr = regs->u_regs[UREG_G1] + regs->u_regs[UREG_G5];
7066 + regs->tpc = addr;
7067 + regs->tnpc = addr+4;
7068 + return 2;
7069 + }
7070 + } while (0);
7071 +
7072 + do { /* PaX: unpatched PLT emulation step 1 */
7073 + unsigned int sethi, ba, nop;
7074 +
7075 + err = get_user(sethi, (unsigned int *)regs->tpc);
7076 + err |= get_user(ba, (unsigned int *)(regs->tpc+4));
7077 + err |= get_user(nop, (unsigned int *)(regs->tpc+8));
7078 +
7079 + if (err)
7080 + break;
7081 +
7082 + if ((sethi & 0xFFC00000U) == 0x03000000U &&
7083 + ((ba & 0xFFC00000U) == 0x30800000U || (ba & 0xFFF80000U) == 0x30680000U) &&
7084 + nop == 0x01000000U)
7085 + {
7086 + unsigned long addr;
7087 + unsigned int save, call;
7088 + unsigned int sethi1, sethi2, or1, or2, sllx, add, jmpl;
7089 +
7090 + if ((ba & 0xFFC00000U) == 0x30800000U)
7091 + addr = regs->tpc + 4 + ((((ba | 0xFFFFFFFFFFC00000UL) ^ 0x00200000UL) + 0x00200000UL) << 2);
7092 + else
7093 + addr = regs->tpc + 4 + ((((ba | 0xFFFFFFFFFFF80000UL) ^ 0x00040000UL) + 0x00040000UL) << 2);
7094 +
7095 + if (test_thread_flag(TIF_32BIT))
7096 + addr &= 0xFFFFFFFFUL;
7097 +
7098 + err = get_user(save, (unsigned int *)addr);
7099 + err |= get_user(call, (unsigned int *)(addr+4));
7100 + err |= get_user(nop, (unsigned int *)(addr+8));
7101 + if (err)
7102 + break;
7103 +
7104 +#ifdef CONFIG_PAX_DLRESOLVE
7105 + if (save == 0x9DE3BFA8U &&
7106 + (call & 0xC0000000U) == 0x40000000U &&
7107 + nop == 0x01000000U)
7108 + {
7109 + struct vm_area_struct *vma;
7110 + unsigned long call_dl_resolve;
7111 +
7112 + down_read(&current->mm->mmap_sem);
7113 + call_dl_resolve = current->mm->call_dl_resolve;
7114 + up_read(&current->mm->mmap_sem);
7115 + if (likely(call_dl_resolve))
7116 + goto emulate;
7117 +
7118 + vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
7119 +
7120 + down_write(&current->mm->mmap_sem);
7121 + if (current->mm->call_dl_resolve) {
7122 + call_dl_resolve = current->mm->call_dl_resolve;
7123 + up_write(&current->mm->mmap_sem);
7124 + if (vma)
7125 + kmem_cache_free(vm_area_cachep, vma);
7126 + goto emulate;
7127 + }
7128 +
7129 + call_dl_resolve = get_unmapped_area(NULL, 0UL, PAGE_SIZE, 0UL, MAP_PRIVATE);
7130 + if (!vma || (call_dl_resolve & ~PAGE_MASK)) {
7131 + up_write(&current->mm->mmap_sem);
7132 + if (vma)
7133 + kmem_cache_free(vm_area_cachep, vma);
7134 + return 1;
7135 + }
7136 +
7137 + if (pax_insert_vma(vma, call_dl_resolve)) {
7138 + up_write(&current->mm->mmap_sem);
7139 + kmem_cache_free(vm_area_cachep, vma);
7140 + return 1;
7141 + }
7142 +
7143 + current->mm->call_dl_resolve = call_dl_resolve;
7144 + up_write(&current->mm->mmap_sem);
7145 +
7146 +emulate:
7147 + regs->u_regs[UREG_G1] = (sethi & 0x003FFFFFU) << 10;
7148 + regs->tpc = call_dl_resolve;
7149 + regs->tnpc = addr+4;
7150 + return 3;
7151 + }
7152 +#endif
7153 +
7154 + /* PaX: glibc 2.4+ generates sethi/jmpl instead of save/call */
7155 + if ((save & 0xFFC00000U) == 0x05000000U &&
7156 + (call & 0xFFFFE000U) == 0x85C0A000U &&
7157 + nop == 0x01000000U)
7158 + {
7159 + regs->u_regs[UREG_G1] = (sethi & 0x003FFFFFU) << 10;
7160 + regs->u_regs[UREG_G2] = addr + 4;
7161 + addr = (save & 0x003FFFFFU) << 10;
7162 + addr += (((call | 0xFFFFFFFFFFFFE000UL) ^ 0x00001000UL) + 0x00001000UL);
7163 +
7164 + if (test_thread_flag(TIF_32BIT))
7165 + addr &= 0xFFFFFFFFUL;
7166 +
7167 + regs->tpc = addr;
7168 + regs->tnpc = addr+4;
7169 + return 3;
7170 + }
7171 +
7172 + /* PaX: 64-bit PLT stub */
7173 + err = get_user(sethi1, (unsigned int *)addr);
7174 + err |= get_user(sethi2, (unsigned int *)(addr+4));
7175 + err |= get_user(or1, (unsigned int *)(addr+8));
7176 + err |= get_user(or2, (unsigned int *)(addr+12));
7177 + err |= get_user(sllx, (unsigned int *)(addr+16));
7178 + err |= get_user(add, (unsigned int *)(addr+20));
7179 + err |= get_user(jmpl, (unsigned int *)(addr+24));
7180 + err |= get_user(nop, (unsigned int *)(addr+28));
7181 + if (err)
7182 + break;
7183 +
7184 + if ((sethi1 & 0xFFC00000U) == 0x09000000U &&
7185 + (sethi2 & 0xFFC00000U) == 0x0B000000U &&
7186 + (or1 & 0xFFFFE000U) == 0x88112000U &&
7187 + (or2 & 0xFFFFE000U) == 0x8A116000U &&
7188 + sllx == 0x89293020U &&
7189 + add == 0x8A010005U &&
7190 + jmpl == 0x89C14000U &&
7191 + nop == 0x01000000U)
7192 + {
7193 + regs->u_regs[UREG_G1] = (sethi & 0x003FFFFFU) << 10;
7194 + regs->u_regs[UREG_G4] = ((sethi1 & 0x003FFFFFU) << 10) | (or1 & 0x000003FFU);
7195 + regs->u_regs[UREG_G4] <<= 32;
7196 + regs->u_regs[UREG_G5] = ((sethi2 & 0x003FFFFFU) << 10) | (or2 & 0x000003FFU);
7197 + regs->u_regs[UREG_G5] += regs->u_regs[UREG_G4];
7198 + regs->u_regs[UREG_G4] = addr + 24;
7199 + addr = regs->u_regs[UREG_G5];
7200 + regs->tpc = addr;
7201 + regs->tnpc = addr+4;
7202 + return 3;
7203 + }
7204 + }
7205 + } while (0);
7206 +
7207 +#ifdef CONFIG_PAX_DLRESOLVE
7208 + do { /* PaX: unpatched PLT emulation step 2 */
7209 + unsigned int save, call, nop;
7210 +
7211 + err = get_user(save, (unsigned int *)(regs->tpc-4));
7212 + err |= get_user(call, (unsigned int *)regs->tpc);
7213 + err |= get_user(nop, (unsigned int *)(regs->tpc+4));
7214 + if (err)
7215 + break;
7216 +
7217 + if (save == 0x9DE3BFA8U &&
7218 + (call & 0xC0000000U) == 0x40000000U &&
7219 + nop == 0x01000000U)
7220 + {
7221 + unsigned long dl_resolve = regs->tpc + ((((call | 0xFFFFFFFFC0000000UL) ^ 0x20000000UL) + 0x20000000UL) << 2);
7222 +
7223 + if (test_thread_flag(TIF_32BIT))
7224 + dl_resolve &= 0xFFFFFFFFUL;
7225 +
7226 + regs->u_regs[UREG_RETPC] = regs->tpc;
7227 + regs->tpc = dl_resolve;
7228 + regs->tnpc = dl_resolve+4;
7229 + return 3;
7230 + }
7231 + } while (0);
7232 +#endif
7233 +
7234 + do { /* PaX: patched PLT emulation #7, must be AFTER the unpatched PLT emulation */
7235 + unsigned int sethi, ba, nop;
7236 +
7237 + err = get_user(sethi, (unsigned int *)regs->tpc);
7238 + err |= get_user(ba, (unsigned int *)(regs->tpc+4));
7239 + err |= get_user(nop, (unsigned int *)(regs->tpc+8));
7240 +
7241 + if (err)
7242 + break;
7243 +
7244 + if ((sethi & 0xFFC00000U) == 0x03000000U &&
7245 + (ba & 0xFFF00000U) == 0x30600000U &&
7246 + nop == 0x01000000U)
7247 + {
7248 + unsigned long addr;
7249 +
7250 + addr = (sethi & 0x003FFFFFU) << 10;
7251 + regs->u_regs[UREG_G1] = addr;
7252 + addr = regs->tpc + ((((ba | 0xFFFFFFFFFFF80000UL) ^ 0x00040000UL) + 0x00040000UL) << 2);
7253 +
7254 + if (test_thread_flag(TIF_32BIT))
7255 + addr &= 0xFFFFFFFFUL;
7256 +
7257 + regs->tpc = addr;
7258 + regs->tnpc = addr+4;
7259 + return 2;
7260 + }
7261 + } while (0);
7262 +
7263 +#endif
7264 +
7265 + return 1;
7266 +}
7267 +
7268 +void pax_report_insns(struct pt_regs *regs, void *pc, void *sp)
7269 +{
7270 + unsigned long i;
7271 +
7272 + printk(KERN_ERR "PAX: bytes at PC: ");
7273 + for (i = 0; i < 8; i++) {
7274 + unsigned int c;
7275 + if (get_user(c, (unsigned int *)pc+i))
7276 + printk(KERN_CONT "???????? ");
7277 + else
7278 + printk(KERN_CONT "%08x ", c);
7279 + }
7280 + printk("\n");
7281 +}
7282 +#endif
7283 +
7284 asmlinkage void __kprobes do_sparc64_fault(struct pt_regs *regs)
7285 {
7286 struct mm_struct *mm = current->mm;
7287 @@ -343,6 +806,29 @@ retry:
7288 if (!vma)
7289 goto bad_area;
7290
7291 +#ifdef CONFIG_PAX_PAGEEXEC
7292 + /* PaX: detect ITLB misses on non-exec pages */
7293 + if ((mm->pax_flags & MF_PAX_PAGEEXEC) && vma->vm_start <= address &&
7294 + !(vma->vm_flags & VM_EXEC) && (fault_code & FAULT_CODE_ITLB))
7295 + {
7296 + if (address != regs->tpc)
7297 + goto good_area;
7298 +
7299 + up_read(&mm->mmap_sem);
7300 + switch (pax_handle_fetch_fault(regs)) {
7301 +
7302 +#ifdef CONFIG_PAX_EMUPLT
7303 + case 2:
7304 + case 3:
7305 + return;
7306 +#endif
7307 +
7308 + }
7309 + pax_report_fault(regs, (void *)regs->tpc, (void *)(regs->u_regs[UREG_FP] + STACK_BIAS));
7310 + do_group_exit(SIGKILL);
7311 + }
7312 +#endif
7313 +
7314 /* Pure DTLB misses do not tell us whether the fault causing
7315 * load/store/atomic was a write or not, it only says that there
7316 * was no match. So in such a case we (carefully) read the
7317 diff --git a/arch/sparc/mm/hugetlbpage.c b/arch/sparc/mm/hugetlbpage.c
7318 index 07e1453..0a7d9e9 100644
7319 --- a/arch/sparc/mm/hugetlbpage.c
7320 +++ b/arch/sparc/mm/hugetlbpage.c
7321 @@ -67,7 +67,7 @@ full_search:
7322 }
7323 return -ENOMEM;
7324 }
7325 - if (likely(!vma || addr + len <= vma->vm_start)) {
7326 + if (likely(check_heap_stack_gap(vma, addr, len))) {
7327 /*
7328 * Remember the place where we stopped the search:
7329 */
7330 @@ -106,7 +106,7 @@ hugetlb_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
7331 /* make sure it can fit in the remaining address space */
7332 if (likely(addr > len)) {
7333 vma = find_vma(mm, addr-len);
7334 - if (!vma || addr <= vma->vm_start) {
7335 + if (check_heap_stack_gap(vma, addr - len, len)) {
7336 /* remember the address as a hint for next time */
7337 return (mm->free_area_cache = addr-len);
7338 }
7339 @@ -115,16 +115,17 @@ hugetlb_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
7340 if (unlikely(mm->mmap_base < len))
7341 goto bottomup;
7342
7343 - addr = (mm->mmap_base-len) & HPAGE_MASK;
7344 + addr = mm->mmap_base - len;
7345
7346 do {
7347 + addr &= HPAGE_MASK;
7348 /*
7349 * Lookup failure means no vma is above this address,
7350 * else if new region fits below vma->vm_start,
7351 * return with success:
7352 */
7353 vma = find_vma(mm, addr);
7354 - if (likely(!vma || addr+len <= vma->vm_start)) {
7355 + if (likely(check_heap_stack_gap(vma, addr, len))) {
7356 /* remember the address as a hint for next time */
7357 return (mm->free_area_cache = addr);
7358 }
7359 @@ -134,8 +135,8 @@ hugetlb_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
7360 mm->cached_hole_size = vma->vm_start - addr;
7361
7362 /* try just below the current vma->vm_start */
7363 - addr = (vma->vm_start-len) & HPAGE_MASK;
7364 - } while (likely(len < vma->vm_start));
7365 + addr = skip_heap_stack_gap(vma, len);
7366 + } while (!IS_ERR_VALUE(addr));
7367
7368 bottomup:
7369 /*
7370 @@ -181,8 +182,7 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
7371 if (addr) {
7372 addr = ALIGN(addr, HPAGE_SIZE);
7373 vma = find_vma(mm, addr);
7374 - if (task_size - len >= addr &&
7375 - (!vma || addr + len <= vma->vm_start))
7376 + if (task_size - len >= addr && check_heap_stack_gap(vma, addr, len))
7377 return addr;
7378 }
7379 if (mm->get_unmapped_area == arch_get_unmapped_area)
7380 diff --git a/arch/tile/include/asm/atomic_64.h b/arch/tile/include/asm/atomic_64.h
7381 index f4500c6..889656c 100644
7382 --- a/arch/tile/include/asm/atomic_64.h
7383 +++ b/arch/tile/include/asm/atomic_64.h
7384 @@ -143,6 +143,16 @@ static inline long atomic64_add_unless(atomic64_t *v, long a, long u)
7385
7386 #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
7387
7388 +#define atomic64_read_unchecked(v) atomic64_read(v)
7389 +#define atomic64_set_unchecked(v, i) atomic64_set((v), (i))
7390 +#define atomic64_add_unchecked(a, v) atomic64_add((a), (v))
7391 +#define atomic64_add_return_unchecked(a, v) atomic64_add_return((a), (v))
7392 +#define atomic64_sub_unchecked(a, v) atomic64_sub((a), (v))
7393 +#define atomic64_inc_unchecked(v) atomic64_inc(v)
7394 +#define atomic64_inc_return_unchecked(v) atomic64_inc_return(v)
7395 +#define atomic64_dec_unchecked(v) atomic64_dec(v)
7396 +#define atomic64_cmpxchg_unchecked(v, o, n) atomic64_cmpxchg((v), (o), (n))
7397 +
7398 /* Atomic dec and inc don't implement barrier, so provide them if needed. */
7399 #define smp_mb__before_atomic_dec() smp_mb()
7400 #define smp_mb__after_atomic_dec() smp_mb()
7401 diff --git a/arch/tile/include/asm/cache.h b/arch/tile/include/asm/cache.h
7402 index 392e533..536b092 100644
7403 --- a/arch/tile/include/asm/cache.h
7404 +++ b/arch/tile/include/asm/cache.h
7405 @@ -15,11 +15,12 @@
7406 #ifndef _ASM_TILE_CACHE_H
7407 #define _ASM_TILE_CACHE_H
7408
7409 +#include <linux/const.h>
7410 #include <arch/chip.h>
7411
7412 /* bytes per L1 data cache line */
7413 #define L1_CACHE_SHIFT CHIP_L1D_LOG_LINE_SIZE()
7414 -#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
7415 +#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
7416
7417 /* bytes per L2 cache line */
7418 #define L2_CACHE_SHIFT CHIP_L2_LOG_LINE_SIZE()
7419 diff --git a/arch/tile/include/asm/uaccess.h b/arch/tile/include/asm/uaccess.h
7420 index 9ab078a..d6635c2 100644
7421 --- a/arch/tile/include/asm/uaccess.h
7422 +++ b/arch/tile/include/asm/uaccess.h
7423 @@ -403,9 +403,9 @@ static inline unsigned long __must_check copy_from_user(void *to,
7424 const void __user *from,
7425 unsigned long n)
7426 {
7427 - int sz = __compiletime_object_size(to);
7428 + size_t sz = __compiletime_object_size(to);
7429
7430 - if (likely(sz == -1 || sz >= n))
7431 + if (likely(sz == (size_t)-1 || sz >= n))
7432 n = _copy_from_user(to, from, n);
7433 else
7434 copy_from_user_overflow();
7435 diff --git a/arch/um/Makefile b/arch/um/Makefile
7436 index 0970910..13adb57a 100644
7437 --- a/arch/um/Makefile
7438 +++ b/arch/um/Makefile
7439 @@ -62,6 +62,10 @@ USER_CFLAGS = $(patsubst $(KERNEL_DEFINES),,$(patsubst -D__KERNEL__,,\
7440 $(patsubst -I%,,$(KBUILD_CFLAGS)))) $(ARCH_INCLUDE) $(MODE_INCLUDE) \
7441 $(filter -I%,$(CFLAGS)) -D_FILE_OFFSET_BITS=64 -idirafter include
7442
7443 +ifdef CONSTIFY_PLUGIN
7444 +USER_CFLAGS += $(CONSTIFY_PLUGIN) -fplugin-arg-constify_plugin-no-constify
7445 +endif
7446 +
7447 #This will adjust *FLAGS accordingly to the platform.
7448 include $(srctree)/$(ARCH_DIR)/Makefile-os-$(OS)
7449
7450 diff --git a/arch/um/include/asm/cache.h b/arch/um/include/asm/cache.h
7451 index 19e1bdd..3665b77 100644
7452 --- a/arch/um/include/asm/cache.h
7453 +++ b/arch/um/include/asm/cache.h
7454 @@ -1,6 +1,7 @@
7455 #ifndef __UM_CACHE_H
7456 #define __UM_CACHE_H
7457
7458 +#include <linux/const.h>
7459
7460 #if defined(CONFIG_UML_X86) && !defined(CONFIG_64BIT)
7461 # define L1_CACHE_SHIFT (CONFIG_X86_L1_CACHE_SHIFT)
7462 @@ -12,6 +13,6 @@
7463 # define L1_CACHE_SHIFT 5
7464 #endif
7465
7466 -#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
7467 +#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
7468
7469 #endif
7470 diff --git a/arch/um/include/asm/kmap_types.h b/arch/um/include/asm/kmap_types.h
7471 index 6c03acd..a5e0215 100644
7472 --- a/arch/um/include/asm/kmap_types.h
7473 +++ b/arch/um/include/asm/kmap_types.h
7474 @@ -23,6 +23,7 @@ enum km_type {
7475 KM_IRQ1,
7476 KM_SOFTIRQ0,
7477 KM_SOFTIRQ1,
7478 + KM_CLEARPAGE,
7479 KM_TYPE_NR
7480 };
7481
7482 diff --git a/arch/um/include/asm/page.h b/arch/um/include/asm/page.h
7483 index 7cfc3ce..cbd1a58 100644
7484 --- a/arch/um/include/asm/page.h
7485 +++ b/arch/um/include/asm/page.h
7486 @@ -14,6 +14,9 @@
7487 #define PAGE_SIZE (_AC(1, UL) << PAGE_SHIFT)
7488 #define PAGE_MASK (~(PAGE_SIZE-1))
7489
7490 +#define ktla_ktva(addr) (addr)
7491 +#define ktva_ktla(addr) (addr)
7492 +
7493 #ifndef __ASSEMBLY__
7494
7495 struct page;
7496 diff --git a/arch/um/include/asm/pgtable-3level.h b/arch/um/include/asm/pgtable-3level.h
7497 index 0032f92..cd151e0 100644
7498 --- a/arch/um/include/asm/pgtable-3level.h
7499 +++ b/arch/um/include/asm/pgtable-3level.h
7500 @@ -58,6 +58,7 @@
7501 #define pud_present(x) (pud_val(x) & _PAGE_PRESENT)
7502 #define pud_populate(mm, pud, pmd) \
7503 set_pud(pud, __pud(_PAGE_TABLE + __pa(pmd)))
7504 +#define pud_populate_kernel(mm, pud, pmd) pud_populate((mm), (pud), (pmd))
7505
7506 #ifdef CONFIG_64BIT
7507 #define set_pud(pudptr, pudval) set_64bit((u64 *) (pudptr), pud_val(pudval))
7508 diff --git a/arch/um/kernel/process.c b/arch/um/kernel/process.c
7509 index ccb9a9d..cc425bb 100644
7510 --- a/arch/um/kernel/process.c
7511 +++ b/arch/um/kernel/process.c
7512 @@ -407,22 +407,6 @@ int singlestepping(void * t)
7513 return 2;
7514 }
7515
7516 -/*
7517 - * Only x86 and x86_64 have an arch_align_stack().
7518 - * All other arches have "#define arch_align_stack(x) (x)"
7519 - * in their asm/system.h
7520 - * As this is included in UML from asm-um/system-generic.h,
7521 - * we can use it to behave as the subarch does.
7522 - */
7523 -#ifndef arch_align_stack
7524 -unsigned long arch_align_stack(unsigned long sp)
7525 -{
7526 - if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space)
7527 - sp -= get_random_int() % 8192;
7528 - return sp & ~0xf;
7529 -}
7530 -#endif
7531 -
7532 unsigned long get_wchan(struct task_struct *p)
7533 {
7534 unsigned long stack_page, sp, ip;
7535 diff --git a/arch/unicore32/include/asm/cache.h b/arch/unicore32/include/asm/cache.h
7536 index ad8f795..2c7eec6 100644
7537 --- a/arch/unicore32/include/asm/cache.h
7538 +++ b/arch/unicore32/include/asm/cache.h
7539 @@ -12,8 +12,10 @@
7540 #ifndef __UNICORE_CACHE_H__
7541 #define __UNICORE_CACHE_H__
7542
7543 -#define L1_CACHE_SHIFT (5)
7544 -#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
7545 +#include <linux/const.h>
7546 +
7547 +#define L1_CACHE_SHIFT 5
7548 +#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
7549
7550 /*
7551 * Memory returned by kmalloc() may be used for DMA, so we must make
7552 diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
7553 index c70684f..698fa4b 100644
7554 --- a/arch/x86/Kconfig
7555 +++ b/arch/x86/Kconfig
7556 @@ -218,7 +218,7 @@ config X86_HT
7557
7558 config X86_32_LAZY_GS
7559 def_bool y
7560 - depends on X86_32 && !CC_STACKPROTECTOR
7561 + depends on X86_32 && !CC_STACKPROTECTOR && !PAX_MEMORY_UDEREF
7562
7563 config ARCH_HWEIGHT_CFLAGS
7564 string
7565 @@ -1047,7 +1047,7 @@ choice
7566
7567 config NOHIGHMEM
7568 bool "off"
7569 - depends on !X86_NUMAQ
7570 + depends on !X86_NUMAQ && !(PAX_PAGEEXEC && PAX_ENABLE_PAE)
7571 ---help---
7572 Linux can use up to 64 Gigabytes of physical memory on x86 systems.
7573 However, the address space of 32-bit x86 processors is only 4
7574 @@ -1084,7 +1084,7 @@ config NOHIGHMEM
7575
7576 config HIGHMEM4G
7577 bool "4GB"
7578 - depends on !X86_NUMAQ
7579 + depends on !X86_NUMAQ && !(PAX_PAGEEXEC && PAX_ENABLE_PAE)
7580 ---help---
7581 Select this if you have a 32-bit processor and between 1 and 4
7582 gigabytes of physical RAM.
7583 @@ -1138,7 +1138,7 @@ config PAGE_OFFSET
7584 hex
7585 default 0xB0000000 if VMSPLIT_3G_OPT
7586 default 0x80000000 if VMSPLIT_2G
7587 - default 0x78000000 if VMSPLIT_2G_OPT
7588 + default 0x70000000 if VMSPLIT_2G_OPT
7589 default 0x40000000 if VMSPLIT_1G
7590 default 0xC0000000
7591 depends on X86_32
7592 @@ -1526,6 +1526,7 @@ config SECCOMP
7593
7594 config CC_STACKPROTECTOR
7595 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
7596 + depends on X86_64 || !PAX_MEMORY_UDEREF
7597 ---help---
7598 This option turns on the -fstack-protector GCC feature. This
7599 feature puts, at the beginning of functions, a canary value on
7600 @@ -1583,6 +1584,7 @@ config KEXEC_JUMP
7601 config PHYSICAL_START
7602 hex "Physical address where the kernel is loaded" if (EXPERT || CRASH_DUMP)
7603 default "0x1000000"
7604 + range 0x400000 0x40000000
7605 ---help---
7606 This gives the physical address where the kernel is loaded.
7607
7608 @@ -1646,6 +1648,7 @@ config X86_NEED_RELOCS
7609 config PHYSICAL_ALIGN
7610 hex "Alignment value to which kernel should be aligned" if X86_32
7611 default "0x1000000"
7612 + range 0x400000 0x1000000 if PAX_KERNEXEC
7613 range 0x2000 0x1000000
7614 ---help---
7615 This value puts the alignment restrictions on physical address
7616 @@ -1677,9 +1680,10 @@ config HOTPLUG_CPU
7617 Say N if you want to disable CPU hotplug.
7618
7619 config COMPAT_VDSO
7620 - def_bool y
7621 + def_bool n
7622 prompt "Compat VDSO support"
7623 depends on X86_32 || IA32_EMULATION
7624 + depends on !PAX_NOEXEC && !PAX_MEMORY_UDEREF
7625 ---help---
7626 Map the 32-bit VDSO to the predictable old-style address too.
7627
7628 diff --git a/arch/x86/Kconfig.cpu b/arch/x86/Kconfig.cpu
7629 index 706e12e..62e4feb 100644
7630 --- a/arch/x86/Kconfig.cpu
7631 +++ b/arch/x86/Kconfig.cpu
7632 @@ -334,7 +334,7 @@ config X86_PPRO_FENCE
7633
7634 config X86_F00F_BUG
7635 def_bool y
7636 - depends on M586MMX || M586TSC || M586 || M486 || M386
7637 + depends on (M586MMX || M586TSC || M586 || M486 || M386) && !PAX_KERNEXEC
7638
7639 config X86_INVD_BUG
7640 def_bool y
7641 @@ -358,7 +358,7 @@ config X86_POPAD_OK
7642
7643 config X86_ALIGNMENT_16
7644 def_bool y
7645 - depends on MWINCHIP3D || MWINCHIPC6 || MCYRIXIII || MELAN || MK6 || M586MMX || M586TSC || M586 || M486 || MVIAC3_2 || MGEODEGX1
7646 + depends on MWINCHIP3D || MWINCHIPC6 || MCYRIXIII || X86_ELAN || MK8 || MK7 || MK6 || MCORE2 || MPENTIUM4 || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || M586TSC || M586 || M486 || MVIAC3_2 || MGEODEGX1
7647
7648 config X86_INTEL_USERCOPY
7649 def_bool y
7650 @@ -404,7 +404,7 @@ config X86_CMPXCHG64
7651 # generates cmov.
7652 config X86_CMOV
7653 def_bool y
7654 - depends on (MK8 || MK7 || MCORE2 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MVIAC3_2 || MVIAC7 || MCRUSOE || MEFFICEON || X86_64 || MATOM || MGEODE_LX)
7655 + depends on (MK8 || MK7 || MCORE2 || MPSC || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MVIAC3_2 || MVIAC7 || MCRUSOE || MEFFICEON || X86_64 || MATOM || MGEODE_LX)
7656
7657 config X86_MINIMUM_CPU_FAMILY
7658 int
7659 diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug
7660 index e46c214..ab62fd1 100644
7661 --- a/arch/x86/Kconfig.debug
7662 +++ b/arch/x86/Kconfig.debug
7663 @@ -84,7 +84,7 @@ config X86_PTDUMP
7664 config DEBUG_RODATA
7665 bool "Write protect kernel read-only data structures"
7666 default y
7667 - depends on DEBUG_KERNEL
7668 + depends on DEBUG_KERNEL && BROKEN
7669 ---help---
7670 Mark the kernel read-only data as write-protected in the pagetables,
7671 in order to catch accidental (and incorrect) writes to such const
7672 @@ -102,7 +102,7 @@ config DEBUG_RODATA_TEST
7673
7674 config DEBUG_SET_MODULE_RONX
7675 bool "Set loadable kernel module data as NX and text as RO"
7676 - depends on MODULES
7677 + depends on MODULES && BROKEN
7678 ---help---
7679 This option helps catch unintended modifications to loadable
7680 kernel module's text and read-only data. It also prevents execution
7681 @@ -275,7 +275,7 @@ config OPTIMIZE_INLINING
7682
7683 config DEBUG_STRICT_USER_COPY_CHECKS
7684 bool "Strict copy size checks"
7685 - depends on DEBUG_KERNEL && !TRACE_BRANCH_PROFILING
7686 + depends on DEBUG_KERNEL && !TRACE_BRANCH_PROFILING && !PAX_SIZE_OVERFLOW
7687 ---help---
7688 Enabling this option turns a certain set of sanity checks for user
7689 copy operations into compile time failures.
7690 diff --git a/arch/x86/Makefile b/arch/x86/Makefile
7691 index 1f25214..39422b3 100644
7692 --- a/arch/x86/Makefile
7693 +++ b/arch/x86/Makefile
7694 @@ -46,6 +46,7 @@ else
7695 UTS_MACHINE := x86_64
7696 CHECKFLAGS += -D__x86_64__ -m64
7697
7698 + biarch := $(call cc-option,-m64)
7699 KBUILD_AFLAGS += -m64
7700 KBUILD_CFLAGS += -m64
7701
7702 @@ -222,3 +223,12 @@ define archhelp
7703 echo ' FDARGS="..." arguments for the booted kernel'
7704 echo ' FDINITRD=file initrd for the booted kernel'
7705 endef
7706 +
7707 +define OLD_LD
7708 +
7709 +*** ${VERSION}.${PATCHLEVEL} PaX kernels no longer build correctly with old versions of binutils.
7710 +*** Please upgrade your binutils to 2.18 or newer
7711 +endef
7712 +
7713 +archprepare:
7714 + $(if $(LDFLAGS_BUILD_ID),,$(error $(OLD_LD)))
7715 diff --git a/arch/x86/boot/Makefile b/arch/x86/boot/Makefile
7716 index 5a747dd..ff7b12c 100644
7717 --- a/arch/x86/boot/Makefile
7718 +++ b/arch/x86/boot/Makefile
7719 @@ -64,6 +64,9 @@ KBUILD_CFLAGS := $(LINUXINCLUDE) -g -Os -D_SETUP -D__KERNEL__ \
7720 $(call cc-option, -fno-stack-protector) \
7721 $(call cc-option, -mpreferred-stack-boundary=2)
7722 KBUILD_CFLAGS += $(call cc-option, -m32)
7723 +ifdef CONSTIFY_PLUGIN
7724 +KBUILD_CFLAGS += $(CONSTIFY_PLUGIN) -fplugin-arg-constify_plugin-no-constify
7725 +endif
7726 KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__
7727 GCOV_PROFILE := n
7728
7729 diff --git a/arch/x86/boot/bitops.h b/arch/x86/boot/bitops.h
7730 index 878e4b9..20537ab 100644
7731 --- a/arch/x86/boot/bitops.h
7732 +++ b/arch/x86/boot/bitops.h
7733 @@ -26,7 +26,7 @@ static inline int variable_test_bit(int nr, const void *addr)
7734 u8 v;
7735 const u32 *p = (const u32 *)addr;
7736
7737 - asm("btl %2,%1; setc %0" : "=qm" (v) : "m" (*p), "Ir" (nr));
7738 + asm volatile("btl %2,%1; setc %0" : "=qm" (v) : "m" (*p), "Ir" (nr));
7739 return v;
7740 }
7741
7742 @@ -37,7 +37,7 @@ static inline int variable_test_bit(int nr, const void *addr)
7743
7744 static inline void set_bit(int nr, void *addr)
7745 {
7746 - asm("btsl %1,%0" : "+m" (*(u32 *)addr) : "Ir" (nr));
7747 + asm volatile("btsl %1,%0" : "+m" (*(u32 *)addr) : "Ir" (nr));
7748 }
7749
7750 #endif /* BOOT_BITOPS_H */
7751 diff --git a/arch/x86/boot/boot.h b/arch/x86/boot/boot.h
7752 index 18997e5..83d9c67 100644
7753 --- a/arch/x86/boot/boot.h
7754 +++ b/arch/x86/boot/boot.h
7755 @@ -85,7 +85,7 @@ static inline void io_delay(void)
7756 static inline u16 ds(void)
7757 {
7758 u16 seg;
7759 - asm("movw %%ds,%0" : "=rm" (seg));
7760 + asm volatile("movw %%ds,%0" : "=rm" (seg));
7761 return seg;
7762 }
7763
7764 @@ -181,7 +181,7 @@ static inline void wrgs32(u32 v, addr_t addr)
7765 static inline int memcmp(const void *s1, const void *s2, size_t len)
7766 {
7767 u8 diff;
7768 - asm("repe; cmpsb; setnz %0"
7769 + asm volatile("repe; cmpsb; setnz %0"
7770 : "=qm" (diff), "+D" (s1), "+S" (s2), "+c" (len));
7771 return diff;
7772 }
7773 diff --git a/arch/x86/boot/compressed/Makefile b/arch/x86/boot/compressed/Makefile
7774 index e398bb5..3a382ca 100644
7775 --- a/arch/x86/boot/compressed/Makefile
7776 +++ b/arch/x86/boot/compressed/Makefile
7777 @@ -14,6 +14,9 @@ cflags-$(CONFIG_X86_64) := -mcmodel=small
7778 KBUILD_CFLAGS += $(cflags-y)
7779 KBUILD_CFLAGS += $(call cc-option,-ffreestanding)
7780 KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
7781 +ifdef CONSTIFY_PLUGIN
7782 +KBUILD_CFLAGS += $(CONSTIFY_PLUGIN) -fplugin-arg-constify_plugin-no-constify
7783 +endif
7784
7785 KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__
7786 GCOV_PROFILE := n
7787 diff --git a/arch/x86/boot/compressed/eboot.c b/arch/x86/boot/compressed/eboot.c
7788 index 4e85f5f..39fa641 100644
7789 --- a/arch/x86/boot/compressed/eboot.c
7790 +++ b/arch/x86/boot/compressed/eboot.c
7791 @@ -142,7 +142,6 @@ again:
7792 *addr = max_addr;
7793 }
7794
7795 -free_pool:
7796 efi_call_phys1(sys_table->boottime->free_pool, map);
7797
7798 fail:
7799 @@ -206,7 +205,6 @@ static efi_status_t low_alloc(unsigned long size, unsigned long align,
7800 if (i == map_size / desc_size)
7801 status = EFI_NOT_FOUND;
7802
7803 -free_pool:
7804 efi_call_phys1(sys_table->boottime->free_pool, map);
7805 fail:
7806 return status;
7807 diff --git a/arch/x86/boot/compressed/head_32.S b/arch/x86/boot/compressed/head_32.S
7808 index c85e3ac..6f5aa80 100644
7809 --- a/arch/x86/boot/compressed/head_32.S
7810 +++ b/arch/x86/boot/compressed/head_32.S
7811 @@ -106,7 +106,7 @@ preferred_addr:
7812 notl %eax
7813 andl %eax, %ebx
7814 #else
7815 - movl $LOAD_PHYSICAL_ADDR, %ebx
7816 + movl $____LOAD_PHYSICAL_ADDR, %ebx
7817 #endif
7818
7819 /* Target address to relocate to for decompression */
7820 @@ -192,7 +192,7 @@ relocated:
7821 * and where it was actually loaded.
7822 */
7823 movl %ebp, %ebx
7824 - subl $LOAD_PHYSICAL_ADDR, %ebx
7825 + subl $____LOAD_PHYSICAL_ADDR, %ebx
7826 jz 2f /* Nothing to be done if loaded at compiled addr. */
7827 /*
7828 * Process relocations.
7829 @@ -200,8 +200,7 @@ relocated:
7830
7831 1: subl $4, %edi
7832 movl (%edi), %ecx
7833 - testl %ecx, %ecx
7834 - jz 2f
7835 + jecxz 2f
7836 addl %ebx, -__PAGE_OFFSET(%ebx, %ecx)
7837 jmp 1b
7838 2:
7839 diff --git a/arch/x86/boot/compressed/head_64.S b/arch/x86/boot/compressed/head_64.S
7840 index 87e03a1..0d94c76 100644
7841 --- a/arch/x86/boot/compressed/head_64.S
7842 +++ b/arch/x86/boot/compressed/head_64.S
7843 @@ -91,7 +91,7 @@ ENTRY(startup_32)
7844 notl %eax
7845 andl %eax, %ebx
7846 #else
7847 - movl $LOAD_PHYSICAL_ADDR, %ebx
7848 + movl $____LOAD_PHYSICAL_ADDR, %ebx
7849 #endif
7850
7851 /* Target address to relocate to for decompression */
7852 @@ -263,7 +263,7 @@ preferred_addr:
7853 notq %rax
7854 andq %rax, %rbp
7855 #else
7856 - movq $LOAD_PHYSICAL_ADDR, %rbp
7857 + movq $____LOAD_PHYSICAL_ADDR, %rbp
7858 #endif
7859
7860 /* Target address to relocate to for decompression */
7861 diff --git a/arch/x86/boot/compressed/misc.c b/arch/x86/boot/compressed/misc.c
7862 index 7116dcb..d9ae1d7 100644
7863 --- a/arch/x86/boot/compressed/misc.c
7864 +++ b/arch/x86/boot/compressed/misc.c
7865 @@ -310,7 +310,7 @@ static void parse_elf(void *output)
7866 case PT_LOAD:
7867 #ifdef CONFIG_RELOCATABLE
7868 dest = output;
7869 - dest += (phdr->p_paddr - LOAD_PHYSICAL_ADDR);
7870 + dest += (phdr->p_paddr - ____LOAD_PHYSICAL_ADDR);
7871 #else
7872 dest = (void *)(phdr->p_paddr);
7873 #endif
7874 @@ -365,7 +365,7 @@ asmlinkage void decompress_kernel(void *rmode, memptr heap,
7875 error("Destination address too large");
7876 #endif
7877 #ifndef CONFIG_RELOCATABLE
7878 - if ((unsigned long)output != LOAD_PHYSICAL_ADDR)
7879 + if ((unsigned long)output != ____LOAD_PHYSICAL_ADDR)
7880 error("Wrong destination address");
7881 #endif
7882
7883 diff --git a/arch/x86/boot/cpucheck.c b/arch/x86/boot/cpucheck.c
7884 index 4d3ff03..e4972ff 100644
7885 --- a/arch/x86/boot/cpucheck.c
7886 +++ b/arch/x86/boot/cpucheck.c
7887 @@ -74,7 +74,7 @@ static int has_fpu(void)
7888 u16 fcw = -1, fsw = -1;
7889 u32 cr0;
7890
7891 - asm("movl %%cr0,%0" : "=r" (cr0));
7892 + asm volatile("movl %%cr0,%0" : "=r" (cr0));
7893 if (cr0 & (X86_CR0_EM|X86_CR0_TS)) {
7894 cr0 &= ~(X86_CR0_EM|X86_CR0_TS);
7895 asm volatile("movl %0,%%cr0" : : "r" (cr0));
7896 @@ -90,7 +90,7 @@ static int has_eflag(u32 mask)
7897 {
7898 u32 f0, f1;
7899
7900 - asm("pushfl ; "
7901 + asm volatile("pushfl ; "
7902 "pushfl ; "
7903 "popl %0 ; "
7904 "movl %0,%1 ; "
7905 @@ -115,7 +115,7 @@ static void get_flags(void)
7906 set_bit(X86_FEATURE_FPU, cpu.flags);
7907
7908 if (has_eflag(X86_EFLAGS_ID)) {
7909 - asm("cpuid"
7910 + asm volatile("cpuid"
7911 : "=a" (max_intel_level),
7912 "=b" (cpu_vendor[0]),
7913 "=d" (cpu_vendor[1]),
7914 @@ -124,7 +124,7 @@ static void get_flags(void)
7915
7916 if (max_intel_level >= 0x00000001 &&
7917 max_intel_level <= 0x0000ffff) {
7918 - asm("cpuid"
7919 + asm volatile("cpuid"
7920 : "=a" (tfms),
7921 "=c" (cpu.flags[4]),
7922 "=d" (cpu.flags[0])
7923 @@ -136,7 +136,7 @@ static void get_flags(void)
7924 cpu.model += ((tfms >> 16) & 0xf) << 4;
7925 }
7926
7927 - asm("cpuid"
7928 + asm volatile("cpuid"
7929 : "=a" (max_amd_level)
7930 : "a" (0x80000000)
7931 : "ebx", "ecx", "edx");
7932 @@ -144,7 +144,7 @@ static void get_flags(void)
7933 if (max_amd_level >= 0x80000001 &&
7934 max_amd_level <= 0x8000ffff) {
7935 u32 eax = 0x80000001;
7936 - asm("cpuid"
7937 + asm volatile("cpuid"
7938 : "+a" (eax),
7939 "=c" (cpu.flags[6]),
7940 "=d" (cpu.flags[1])
7941 @@ -203,9 +203,9 @@ int check_cpu(int *cpu_level_ptr, int *req_level_ptr, u32 **err_flags_ptr)
7942 u32 ecx = MSR_K7_HWCR;
7943 u32 eax, edx;
7944
7945 - asm("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx));
7946 + asm volatile("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx));
7947 eax &= ~(1 << 15);
7948 - asm("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx));
7949 + asm volatile("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx));
7950
7951 get_flags(); /* Make sure it really did something */
7952 err = check_flags();
7953 @@ -218,9 +218,9 @@ int check_cpu(int *cpu_level_ptr, int *req_level_ptr, u32 **err_flags_ptr)
7954 u32 ecx = MSR_VIA_FCR;
7955 u32 eax, edx;
7956
7957 - asm("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx));
7958 + asm volatile("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx));
7959 eax |= (1<<1)|(1<<7);
7960 - asm("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx));
7961 + asm volatile("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx));
7962
7963 set_bit(X86_FEATURE_CX8, cpu.flags);
7964 err = check_flags();
7965 @@ -231,12 +231,12 @@ int check_cpu(int *cpu_level_ptr, int *req_level_ptr, u32 **err_flags_ptr)
7966 u32 eax, edx;
7967 u32 level = 1;
7968
7969 - asm("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx));
7970 - asm("wrmsr" : : "a" (~0), "d" (edx), "c" (ecx));
7971 - asm("cpuid"
7972 + asm volatile("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx));
7973 + asm volatile("wrmsr" : : "a" (~0), "d" (edx), "c" (ecx));
7974 + asm volatile("cpuid"
7975 : "+a" (level), "=d" (cpu.flags[0])
7976 : : "ecx", "ebx");
7977 - asm("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx));
7978 + asm volatile("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx));
7979
7980 err = check_flags();
7981 }
7982 diff --git a/arch/x86/boot/header.S b/arch/x86/boot/header.S
7983 index efe5acf..22a3784 100644
7984 --- a/arch/x86/boot/header.S
7985 +++ b/arch/x86/boot/header.S
7986 @@ -391,10 +391,14 @@ setup_data: .quad 0 # 64-bit physical pointer to
7987 # single linked list of
7988 # struct setup_data
7989
7990 -pref_address: .quad LOAD_PHYSICAL_ADDR # preferred load addr
7991 +pref_address: .quad ____LOAD_PHYSICAL_ADDR # preferred load addr
7992
7993 #define ZO_INIT_SIZE (ZO__end - ZO_startup_32 + ZO_z_extract_offset)
7994 +#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
7995 +#define VO_INIT_SIZE (VO__end - VO__text - __PAGE_OFFSET - ____LOAD_PHYSICAL_ADDR)
7996 +#else
7997 #define VO_INIT_SIZE (VO__end - VO__text)
7998 +#endif
7999 #if ZO_INIT_SIZE > VO_INIT_SIZE
8000 #define INIT_SIZE ZO_INIT_SIZE
8001 #else
8002 diff --git a/arch/x86/boot/memory.c b/arch/x86/boot/memory.c
8003 index db75d07..8e6d0af 100644
8004 --- a/arch/x86/boot/memory.c
8005 +++ b/arch/x86/boot/memory.c
8006 @@ -19,7 +19,7 @@
8007
8008 static int detect_memory_e820(void)
8009 {
8010 - int count = 0;
8011 + unsigned int count = 0;
8012 struct biosregs ireg, oreg;
8013 struct e820entry *desc = boot_params.e820_map;
8014 static struct e820entry buf; /* static so it is zeroed */
8015 diff --git a/arch/x86/boot/video-vesa.c b/arch/x86/boot/video-vesa.c
8016 index 11e8c6e..fdbb1ed 100644
8017 --- a/arch/x86/boot/video-vesa.c
8018 +++ b/arch/x86/boot/video-vesa.c
8019 @@ -200,6 +200,7 @@ static void vesa_store_pm_info(void)
8020
8021 boot_params.screen_info.vesapm_seg = oreg.es;
8022 boot_params.screen_info.vesapm_off = oreg.di;
8023 + boot_params.screen_info.vesapm_size = oreg.cx;
8024 }
8025
8026 /*
8027 diff --git a/arch/x86/boot/video.c b/arch/x86/boot/video.c
8028 index 43eda28..5ab5fdb 100644
8029 --- a/arch/x86/boot/video.c
8030 +++ b/arch/x86/boot/video.c
8031 @@ -96,7 +96,7 @@ static void store_mode_params(void)
8032 static unsigned int get_entry(void)
8033 {
8034 char entry_buf[4];
8035 - int i, len = 0;
8036 + unsigned int i, len = 0;
8037 int key;
8038 unsigned int v;
8039
8040 diff --git a/arch/x86/crypto/aes-x86_64-asm_64.S b/arch/x86/crypto/aes-x86_64-asm_64.S
8041 index 5b577d5..3c1fed4 100644
8042 --- a/arch/x86/crypto/aes-x86_64-asm_64.S
8043 +++ b/arch/x86/crypto/aes-x86_64-asm_64.S
8044 @@ -8,6 +8,8 @@
8045 * including this sentence is retained in full.
8046 */
8047
8048 +#include <asm/alternative-asm.h>
8049 +
8050 .extern crypto_ft_tab
8051 .extern crypto_it_tab
8052 .extern crypto_fl_tab
8053 @@ -71,6 +73,8 @@ FUNC: movq r1,r2; \
8054 je B192; \
8055 leaq 32(r9),r9;
8056
8057 +#define ret pax_force_retaddr 0, 1; ret
8058 +
8059 #define epilogue(r1,r2,r3,r4,r5,r6,r7,r8,r9) \
8060 movq r1,r2; \
8061 movq r3,r4; \
8062 diff --git a/arch/x86/crypto/aesni-intel_asm.S b/arch/x86/crypto/aesni-intel_asm.S
8063 index 3470624..201259d 100644
8064 --- a/arch/x86/crypto/aesni-intel_asm.S
8065 +++ b/arch/x86/crypto/aesni-intel_asm.S
8066 @@ -31,6 +31,7 @@
8067
8068 #include <linux/linkage.h>
8069 #include <asm/inst.h>
8070 +#include <asm/alternative-asm.h>
8071
8072 #ifdef __x86_64__
8073 .data
8074 @@ -1436,7 +1437,9 @@ _return_T_done_decrypt:
8075 pop %r14
8076 pop %r13
8077 pop %r12
8078 + pax_force_retaddr 0, 1
8079 ret
8080 +ENDPROC(aesni_gcm_dec)
8081
8082
8083 /*****************************************************************************
8084 @@ -1699,7 +1702,9 @@ _return_T_done_encrypt:
8085 pop %r14
8086 pop %r13
8087 pop %r12
8088 + pax_force_retaddr 0, 1
8089 ret
8090 +ENDPROC(aesni_gcm_enc)
8091
8092 #endif
8093
8094 @@ -1714,6 +1719,7 @@ _key_expansion_256a:
8095 pxor %xmm1, %xmm0
8096 movaps %xmm0, (TKEYP)
8097 add $0x10, TKEYP
8098 + pax_force_retaddr_bts
8099 ret
8100
8101 .align 4
8102 @@ -1738,6 +1744,7 @@ _key_expansion_192a:
8103 shufps $0b01001110, %xmm2, %xmm1
8104 movaps %xmm1, 0x10(TKEYP)
8105 add $0x20, TKEYP
8106 + pax_force_retaddr_bts
8107 ret
8108
8109 .align 4
8110 @@ -1757,6 +1764,7 @@ _key_expansion_192b:
8111
8112 movaps %xmm0, (TKEYP)
8113 add $0x10, TKEYP
8114 + pax_force_retaddr_bts
8115 ret
8116
8117 .align 4
8118 @@ -1769,6 +1777,7 @@ _key_expansion_256b:
8119 pxor %xmm1, %xmm2
8120 movaps %xmm2, (TKEYP)
8121 add $0x10, TKEYP
8122 + pax_force_retaddr_bts
8123 ret
8124
8125 /*
8126 @@ -1881,7 +1890,9 @@ ENTRY(aesni_set_key)
8127 #ifndef __x86_64__
8128 popl KEYP
8129 #endif
8130 + pax_force_retaddr 0, 1
8131 ret
8132 +ENDPROC(aesni_set_key)
8133
8134 /*
8135 * void aesni_enc(struct crypto_aes_ctx *ctx, u8 *dst, const u8 *src)
8136 @@ -1902,7 +1913,9 @@ ENTRY(aesni_enc)
8137 popl KLEN
8138 popl KEYP
8139 #endif
8140 + pax_force_retaddr 0, 1
8141 ret
8142 +ENDPROC(aesni_enc)
8143
8144 /*
8145 * _aesni_enc1: internal ABI
8146 @@ -1959,6 +1972,7 @@ _aesni_enc1:
8147 AESENC KEY STATE
8148 movaps 0x70(TKEYP), KEY
8149 AESENCLAST KEY STATE
8150 + pax_force_retaddr_bts
8151 ret
8152
8153 /*
8154 @@ -2067,6 +2081,7 @@ _aesni_enc4:
8155 AESENCLAST KEY STATE2
8156 AESENCLAST KEY STATE3
8157 AESENCLAST KEY STATE4
8158 + pax_force_retaddr_bts
8159 ret
8160
8161 /*
8162 @@ -2089,7 +2104,9 @@ ENTRY(aesni_dec)
8163 popl KLEN
8164 popl KEYP
8165 #endif
8166 + pax_force_retaddr 0, 1
8167 ret
8168 +ENDPROC(aesni_dec)
8169
8170 /*
8171 * _aesni_dec1: internal ABI
8172 @@ -2146,6 +2163,7 @@ _aesni_dec1:
8173 AESDEC KEY STATE
8174 movaps 0x70(TKEYP), KEY
8175 AESDECLAST KEY STATE
8176 + pax_force_retaddr_bts
8177 ret
8178
8179 /*
8180 @@ -2254,6 +2272,7 @@ _aesni_dec4:
8181 AESDECLAST KEY STATE2
8182 AESDECLAST KEY STATE3
8183 AESDECLAST KEY STATE4
8184 + pax_force_retaddr_bts
8185 ret
8186
8187 /*
8188 @@ -2311,7 +2330,9 @@ ENTRY(aesni_ecb_enc)
8189 popl KEYP
8190 popl LEN
8191 #endif
8192 + pax_force_retaddr 0, 1
8193 ret
8194 +ENDPROC(aesni_ecb_enc)
8195
8196 /*
8197 * void aesni_ecb_dec(struct crypto_aes_ctx *ctx, const u8 *dst, u8 *src,
8198 @@ -2369,7 +2390,9 @@ ENTRY(aesni_ecb_dec)
8199 popl KEYP
8200 popl LEN
8201 #endif
8202 + pax_force_retaddr 0, 1
8203 ret
8204 +ENDPROC(aesni_ecb_dec)
8205
8206 /*
8207 * void aesni_cbc_enc(struct crypto_aes_ctx *ctx, const u8 *dst, u8 *src,
8208 @@ -2410,7 +2433,9 @@ ENTRY(aesni_cbc_enc)
8209 popl LEN
8210 popl IVP
8211 #endif
8212 + pax_force_retaddr 0, 1
8213 ret
8214 +ENDPROC(aesni_cbc_enc)
8215
8216 /*
8217 * void aesni_cbc_dec(struct crypto_aes_ctx *ctx, const u8 *dst, u8 *src,
8218 @@ -2500,7 +2525,9 @@ ENTRY(aesni_cbc_dec)
8219 popl LEN
8220 popl IVP
8221 #endif
8222 + pax_force_retaddr 0, 1
8223 ret
8224 +ENDPROC(aesni_cbc_dec)
8225
8226 #ifdef __x86_64__
8227 .align 16
8228 @@ -2526,6 +2553,7 @@ _aesni_inc_init:
8229 mov $1, TCTR_LOW
8230 MOVQ_R64_XMM TCTR_LOW INC
8231 MOVQ_R64_XMM CTR TCTR_LOW
8232 + pax_force_retaddr_bts
8233 ret
8234
8235 /*
8236 @@ -2554,6 +2582,7 @@ _aesni_inc:
8237 .Linc_low:
8238 movaps CTR, IV
8239 PSHUFB_XMM BSWAP_MASK IV
8240 + pax_force_retaddr_bts
8241 ret
8242
8243 /*
8244 @@ -2614,5 +2643,7 @@ ENTRY(aesni_ctr_enc)
8245 .Lctr_enc_ret:
8246 movups IV, (IVP)
8247 .Lctr_enc_just_ret:
8248 + pax_force_retaddr 0, 1
8249 ret
8250 +ENDPROC(aesni_ctr_enc)
8251 #endif
8252 diff --git a/arch/x86/crypto/blowfish-x86_64-asm_64.S b/arch/x86/crypto/blowfish-x86_64-asm_64.S
8253 index 391d245..67f35c2 100644
8254 --- a/arch/x86/crypto/blowfish-x86_64-asm_64.S
8255 +++ b/arch/x86/crypto/blowfish-x86_64-asm_64.S
8256 @@ -20,6 +20,8 @@
8257 *
8258 */
8259
8260 +#include <asm/alternative-asm.h>
8261 +
8262 .file "blowfish-x86_64-asm.S"
8263 .text
8264
8265 @@ -151,9 +153,11 @@ __blowfish_enc_blk:
8266 jnz __enc_xor;
8267
8268 write_block();
8269 + pax_force_retaddr 0, 1
8270 ret;
8271 __enc_xor:
8272 xor_block();
8273 + pax_force_retaddr 0, 1
8274 ret;
8275
8276 .align 8
8277 @@ -188,6 +192,7 @@ blowfish_dec_blk:
8278
8279 movq %r11, %rbp;
8280
8281 + pax_force_retaddr 0, 1
8282 ret;
8283
8284 /**********************************************************************
8285 @@ -342,6 +347,7 @@ __blowfish_enc_blk_4way:
8286
8287 popq %rbx;
8288 popq %rbp;
8289 + pax_force_retaddr 0, 1
8290 ret;
8291
8292 __enc_xor4:
8293 @@ -349,6 +355,7 @@ __enc_xor4:
8294
8295 popq %rbx;
8296 popq %rbp;
8297 + pax_force_retaddr 0, 1
8298 ret;
8299
8300 .align 8
8301 @@ -386,5 +393,6 @@ blowfish_dec_blk_4way:
8302 popq %rbx;
8303 popq %rbp;
8304
8305 + pax_force_retaddr 0, 1
8306 ret;
8307
8308 diff --git a/arch/x86/crypto/camellia-x86_64-asm_64.S b/arch/x86/crypto/camellia-x86_64-asm_64.S
8309 index 0b33743..7a56206 100644
8310 --- a/arch/x86/crypto/camellia-x86_64-asm_64.S
8311 +++ b/arch/x86/crypto/camellia-x86_64-asm_64.S
8312 @@ -20,6 +20,8 @@
8313 *
8314 */
8315
8316 +#include <asm/alternative-asm.h>
8317 +
8318 .file "camellia-x86_64-asm_64.S"
8319 .text
8320
8321 @@ -229,12 +231,14 @@ __enc_done:
8322 enc_outunpack(mov, RT1);
8323
8324 movq RRBP, %rbp;
8325 + pax_force_retaddr 0, 1
8326 ret;
8327
8328 __enc_xor:
8329 enc_outunpack(xor, RT1);
8330
8331 movq RRBP, %rbp;
8332 + pax_force_retaddr 0, 1
8333 ret;
8334
8335 .global camellia_dec_blk;
8336 @@ -275,6 +279,7 @@ __dec_rounds16:
8337 dec_outunpack();
8338
8339 movq RRBP, %rbp;
8340 + pax_force_retaddr 0, 1
8341 ret;
8342
8343 /**********************************************************************
8344 @@ -468,6 +473,7 @@ __enc2_done:
8345
8346 movq RRBP, %rbp;
8347 popq %rbx;
8348 + pax_force_retaddr 0, 1
8349 ret;
8350
8351 __enc2_xor:
8352 @@ -475,6 +481,7 @@ __enc2_xor:
8353
8354 movq RRBP, %rbp;
8355 popq %rbx;
8356 + pax_force_retaddr 0, 1
8357 ret;
8358
8359 .global camellia_dec_blk_2way;
8360 @@ -517,4 +524,5 @@ __dec2_rounds16:
8361
8362 movq RRBP, %rbp;
8363 movq RXOR, %rbx;
8364 + pax_force_retaddr 0, 1
8365 ret;
8366 diff --git a/arch/x86/crypto/salsa20-x86_64-asm_64.S b/arch/x86/crypto/salsa20-x86_64-asm_64.S
8367 index 6214a9b..1f4fc9a 100644
8368 --- a/arch/x86/crypto/salsa20-x86_64-asm_64.S
8369 +++ b/arch/x86/crypto/salsa20-x86_64-asm_64.S
8370 @@ -1,3 +1,5 @@
8371 +#include <asm/alternative-asm.h>
8372 +
8373 # enter ECRYPT_encrypt_bytes
8374 .text
8375 .p2align 5
8376 @@ -790,6 +792,7 @@ ECRYPT_encrypt_bytes:
8377 add %r11,%rsp
8378 mov %rdi,%rax
8379 mov %rsi,%rdx
8380 + pax_force_retaddr 0, 1
8381 ret
8382 # bytesatleast65:
8383 ._bytesatleast65:
8384 @@ -891,6 +894,7 @@ ECRYPT_keysetup:
8385 add %r11,%rsp
8386 mov %rdi,%rax
8387 mov %rsi,%rdx
8388 + pax_force_retaddr
8389 ret
8390 # enter ECRYPT_ivsetup
8391 .text
8392 @@ -917,4 +921,5 @@ ECRYPT_ivsetup:
8393 add %r11,%rsp
8394 mov %rdi,%rax
8395 mov %rsi,%rdx
8396 + pax_force_retaddr
8397 ret
8398 diff --git a/arch/x86/crypto/serpent-sse2-x86_64-asm_64.S b/arch/x86/crypto/serpent-sse2-x86_64-asm_64.S
8399 index 3ee1ff0..cbc568b 100644
8400 --- a/arch/x86/crypto/serpent-sse2-x86_64-asm_64.S
8401 +++ b/arch/x86/crypto/serpent-sse2-x86_64-asm_64.S
8402 @@ -24,6 +24,8 @@
8403 *
8404 */
8405
8406 +#include <asm/alternative-asm.h>
8407 +
8408 .file "serpent-sse2-x86_64-asm_64.S"
8409 .text
8410
8411 @@ -692,12 +694,14 @@ __serpent_enc_blk_8way:
8412 write_blocks(%rsi, RA1, RB1, RC1, RD1, RK0, RK1, RK2);
8413 write_blocks(%rax, RA2, RB2, RC2, RD2, RK0, RK1, RK2);
8414
8415 + pax_force_retaddr
8416 ret;
8417
8418 __enc_xor8:
8419 xor_blocks(%rsi, RA1, RB1, RC1, RD1, RK0, RK1, RK2);
8420 xor_blocks(%rax, RA2, RB2, RC2, RD2, RK0, RK1, RK2);
8421
8422 + pax_force_retaddr
8423 ret;
8424
8425 .align 8
8426 @@ -755,4 +759,5 @@ serpent_dec_blk_8way:
8427 write_blocks(%rsi, RC1, RD1, RB1, RE1, RK0, RK1, RK2);
8428 write_blocks(%rax, RC2, RD2, RB2, RE2, RK0, RK1, RK2);
8429
8430 + pax_force_retaddr
8431 ret;
8432 diff --git a/arch/x86/crypto/sha1_ssse3_asm.S b/arch/x86/crypto/sha1_ssse3_asm.S
8433 index b2c2f57..8470cab 100644
8434 --- a/arch/x86/crypto/sha1_ssse3_asm.S
8435 +++ b/arch/x86/crypto/sha1_ssse3_asm.S
8436 @@ -28,6 +28,8 @@
8437 * (at your option) any later version.
8438 */
8439
8440 +#include <asm/alternative-asm.h>
8441 +
8442 #define CTX %rdi // arg1
8443 #define BUF %rsi // arg2
8444 #define CNT %rdx // arg3
8445 @@ -104,6 +106,7 @@
8446 pop %r12
8447 pop %rbp
8448 pop %rbx
8449 + pax_force_retaddr 0, 1
8450 ret
8451
8452 .size \name, .-\name
8453 diff --git a/arch/x86/crypto/twofish-x86_64-asm_64-3way.S b/arch/x86/crypto/twofish-x86_64-asm_64-3way.S
8454 index 5b012a2..36d5364 100644
8455 --- a/arch/x86/crypto/twofish-x86_64-asm_64-3way.S
8456 +++ b/arch/x86/crypto/twofish-x86_64-asm_64-3way.S
8457 @@ -20,6 +20,8 @@
8458 *
8459 */
8460
8461 +#include <asm/alternative-asm.h>
8462 +
8463 .file "twofish-x86_64-asm-3way.S"
8464 .text
8465
8466 @@ -260,6 +262,7 @@ __twofish_enc_blk_3way:
8467 popq %r13;
8468 popq %r14;
8469 popq %r15;
8470 + pax_force_retaddr 0, 1
8471 ret;
8472
8473 __enc_xor3:
8474 @@ -271,6 +274,7 @@ __enc_xor3:
8475 popq %r13;
8476 popq %r14;
8477 popq %r15;
8478 + pax_force_retaddr 0, 1
8479 ret;
8480
8481 .global twofish_dec_blk_3way
8482 @@ -312,5 +316,6 @@ twofish_dec_blk_3way:
8483 popq %r13;
8484 popq %r14;
8485 popq %r15;
8486 + pax_force_retaddr 0, 1
8487 ret;
8488
8489 diff --git a/arch/x86/crypto/twofish-x86_64-asm_64.S b/arch/x86/crypto/twofish-x86_64-asm_64.S
8490 index 7bcf3fc..f53832f 100644
8491 --- a/arch/x86/crypto/twofish-x86_64-asm_64.S
8492 +++ b/arch/x86/crypto/twofish-x86_64-asm_64.S
8493 @@ -21,6 +21,7 @@
8494 .text
8495
8496 #include <asm/asm-offsets.h>
8497 +#include <asm/alternative-asm.h>
8498
8499 #define a_offset 0
8500 #define b_offset 4
8501 @@ -268,6 +269,7 @@ twofish_enc_blk:
8502
8503 popq R1
8504 movq $1,%rax
8505 + pax_force_retaddr 0, 1
8506 ret
8507
8508 twofish_dec_blk:
8509 @@ -319,4 +321,5 @@ twofish_dec_blk:
8510
8511 popq R1
8512 movq $1,%rax
8513 + pax_force_retaddr 0, 1
8514 ret
8515 diff --git a/arch/x86/ia32/ia32_aout.c b/arch/x86/ia32/ia32_aout.c
8516 index 07b3a68..bd2a388 100644
8517 --- a/arch/x86/ia32/ia32_aout.c
8518 +++ b/arch/x86/ia32/ia32_aout.c
8519 @@ -159,6 +159,8 @@ static int aout_core_dump(long signr, struct pt_regs *regs, struct file *file,
8520 unsigned long dump_start, dump_size;
8521 struct user32 dump;
8522
8523 + memset(&dump, 0, sizeof(dump));
8524 +
8525 fs = get_fs();
8526 set_fs(KERNEL_DS);
8527 has_dumped = 1;
8528 diff --git a/arch/x86/ia32/ia32_signal.c b/arch/x86/ia32/ia32_signal.c
8529 index 673ac9b..7a8c5df 100644
8530 --- a/arch/x86/ia32/ia32_signal.c
8531 +++ b/arch/x86/ia32/ia32_signal.c
8532 @@ -162,7 +162,7 @@ asmlinkage long sys32_sigaltstack(const stack_ia32_t __user *uss_ptr,
8533 }
8534 seg = get_fs();
8535 set_fs(KERNEL_DS);
8536 - ret = do_sigaltstack(uss_ptr ? &uss : NULL, &uoss, regs->sp);
8537 + ret = do_sigaltstack(uss_ptr ? (const stack_t __force_user *)&uss : NULL, (stack_t __force_user *)&uoss, regs->sp);
8538 set_fs(seg);
8539 if (ret >= 0 && uoss_ptr) {
8540 if (!access_ok(VERIFY_WRITE, uoss_ptr, sizeof(stack_ia32_t)))
8541 @@ -361,7 +361,7 @@ static int ia32_setup_sigcontext(struct sigcontext_ia32 __user *sc,
8542 */
8543 static void __user *get_sigframe(struct k_sigaction *ka, struct pt_regs *regs,
8544 size_t frame_size,
8545 - void **fpstate)
8546 + void __user **fpstate)
8547 {
8548 unsigned long sp;
8549
8550 @@ -382,7 +382,7 @@ static void __user *get_sigframe(struct k_sigaction *ka, struct pt_regs *regs,
8551
8552 if (used_math()) {
8553 sp = sp - sig_xstate_ia32_size;
8554 - *fpstate = (struct _fpstate_ia32 *) sp;
8555 + *fpstate = (struct _fpstate_ia32 __user *) sp;
8556 if (save_i387_xstate_ia32(*fpstate) < 0)
8557 return (void __user *) -1L;
8558 }
8559 @@ -390,7 +390,7 @@ static void __user *get_sigframe(struct k_sigaction *ka, struct pt_regs *regs,
8560 sp -= frame_size;
8561 /* Align the stack pointer according to the i386 ABI,
8562 * i.e. so that on function entry ((sp + 4) & 15) == 0. */
8563 - sp = ((sp + 4) & -16ul) - 4;
8564 + sp = ((sp - 12) & -16ul) - 4;
8565 return (void __user *) sp;
8566 }
8567
8568 @@ -448,7 +448,7 @@ int ia32_setup_frame(int sig, struct k_sigaction *ka,
8569 * These are actually not used anymore, but left because some
8570 * gdb versions depend on them as a marker.
8571 */
8572 - put_user_ex(*((u64 *)&code), (u64 *)frame->retcode);
8573 + put_user_ex(*((const u64 *)&code), (u64 __user *)frame->retcode);
8574 } put_user_catch(err);
8575
8576 if (err)
8577 @@ -490,7 +490,7 @@ int ia32_setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
8578 0xb8,
8579 __NR_ia32_rt_sigreturn,
8580 0x80cd,
8581 - 0,
8582 + 0
8583 };
8584
8585 frame = get_sigframe(ka, regs, sizeof(*frame), &fpstate);
8586 @@ -520,16 +520,18 @@ int ia32_setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
8587
8588 if (ka->sa.sa_flags & SA_RESTORER)
8589 restorer = ka->sa.sa_restorer;
8590 + else if (current->mm->context.vdso)
8591 + /* Return stub is in 32bit vsyscall page */
8592 + restorer = VDSO32_SYMBOL(current->mm->context.vdso, rt_sigreturn);
8593 else
8594 - restorer = VDSO32_SYMBOL(current->mm->context.vdso,
8595 - rt_sigreturn);
8596 + restorer = &frame->retcode;
8597 put_user_ex(ptr_to_compat(restorer), &frame->pretcode);
8598
8599 /*
8600 * Not actually used anymore, but left because some gdb
8601 * versions need it.
8602 */
8603 - put_user_ex(*((u64 *)&code), (u64 *)frame->retcode);
8604 + put_user_ex(*((const u64 *)&code), (u64 __user *)frame->retcode);
8605 } put_user_catch(err);
8606
8607 if (err)
8608 diff --git a/arch/x86/ia32/ia32entry.S b/arch/x86/ia32/ia32entry.S
8609 index 20e5f7b..eab8751 100644
8610 --- a/arch/x86/ia32/ia32entry.S
8611 +++ b/arch/x86/ia32/ia32entry.S
8612 @@ -14,8 +14,10 @@
8613 #include <asm/segment.h>
8614 #include <asm/irqflags.h>
8615 #include <asm/asm.h>
8616 +#include <asm/pgtable.h>
8617 #include <linux/linkage.h>
8618 #include <linux/err.h>
8619 +#include <asm/alternative-asm.h>
8620
8621 /* Avoid __ASSEMBLER__'ifying <linux/audit.h> just for this. */
8622 #include <linux/elf-em.h>
8623 @@ -95,6 +97,32 @@ ENTRY(native_irq_enable_sysexit)
8624 ENDPROC(native_irq_enable_sysexit)
8625 #endif
8626
8627 + .macro pax_enter_kernel_user
8628 + pax_set_fptr_mask
8629 +#ifdef CONFIG_PAX_MEMORY_UDEREF
8630 + call pax_enter_kernel_user
8631 +#endif
8632 + .endm
8633 +
8634 + .macro pax_exit_kernel_user
8635 +#ifdef CONFIG_PAX_MEMORY_UDEREF
8636 + call pax_exit_kernel_user
8637 +#endif
8638 +#ifdef CONFIG_PAX_RANDKSTACK
8639 + pushq %rax
8640 + pushq %r11
8641 + call pax_randomize_kstack
8642 + popq %r11
8643 + popq %rax
8644 +#endif
8645 + .endm
8646 +
8647 +.macro pax_erase_kstack
8648 +#ifdef CONFIG_PAX_MEMORY_STACKLEAK
8649 + call pax_erase_kstack
8650 +#endif
8651 +.endm
8652 +
8653 /*
8654 * 32bit SYSENTER instruction entry.
8655 *
8656 @@ -121,12 +149,6 @@ ENTRY(ia32_sysenter_target)
8657 CFI_REGISTER rsp,rbp
8658 SWAPGS_UNSAFE_STACK
8659 movq PER_CPU_VAR(kernel_stack), %rsp
8660 - addq $(KERNEL_STACK_OFFSET),%rsp
8661 - /*
8662 - * No need to follow this irqs on/off section: the syscall
8663 - * disabled irqs, here we enable it straight after entry:
8664 - */
8665 - ENABLE_INTERRUPTS(CLBR_NONE)
8666 movl %ebp,%ebp /* zero extension */
8667 pushq_cfi $__USER32_DS
8668 /*CFI_REL_OFFSET ss,0*/
8669 @@ -134,22 +156,37 @@ ENTRY(ia32_sysenter_target)
8670 CFI_REL_OFFSET rsp,0
8671 pushfq_cfi
8672 /*CFI_REL_OFFSET rflags,0*/
8673 - movl TI_sysenter_return+THREAD_INFO(%rsp,3*8-KERNEL_STACK_OFFSET),%r10d
8674 - CFI_REGISTER rip,r10
8675 + orl $X86_EFLAGS_IF,(%rsp)
8676 + GET_THREAD_INFO(%r11)
8677 + movl TI_sysenter_return(%r11), %r11d
8678 + CFI_REGISTER rip,r11
8679 pushq_cfi $__USER32_CS
8680 /*CFI_REL_OFFSET cs,0*/
8681 movl %eax, %eax
8682 - pushq_cfi %r10
8683 + pushq_cfi %r11
8684 CFI_REL_OFFSET rip,0
8685 pushq_cfi %rax
8686 cld
8687 SAVE_ARGS 0,1,0
8688 + pax_enter_kernel_user
8689 + /*
8690 + * No need to follow this irqs on/off section: the syscall
8691 + * disabled irqs, here we enable it straight after entry:
8692 + */
8693 + ENABLE_INTERRUPTS(CLBR_NONE)
8694 /* no need to do an access_ok check here because rbp has been
8695 32bit zero extended */
8696 +
8697 +#ifdef CONFIG_PAX_MEMORY_UDEREF
8698 + mov $PAX_USER_SHADOW_BASE,%r11
8699 + add %r11,%rbp
8700 +#endif
8701 +
8702 1: movl (%rbp),%ebp
8703 _ASM_EXTABLE(1b,ia32_badarg)
8704 - orl $TS_COMPAT,TI_status+THREAD_INFO(%rsp,RIP-ARGOFFSET)
8705 - testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
8706 + GET_THREAD_INFO(%r11)
8707 + orl $TS_COMPAT,TI_status(%r11)
8708 + testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags(%r11)
8709 CFI_REMEMBER_STATE
8710 jnz sysenter_tracesys
8711 cmpq $(IA32_NR_syscalls-1),%rax
8712 @@ -159,12 +196,15 @@ sysenter_do_call:
8713 sysenter_dispatch:
8714 call *ia32_sys_call_table(,%rax,8)
8715 movq %rax,RAX-ARGOFFSET(%rsp)
8716 + GET_THREAD_INFO(%r11)
8717 DISABLE_INTERRUPTS(CLBR_NONE)
8718 TRACE_IRQS_OFF
8719 - testl $_TIF_ALLWORK_MASK,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
8720 + testl $_TIF_ALLWORK_MASK,TI_flags(%r11)
8721 jnz sysexit_audit
8722 sysexit_from_sys_call:
8723 - andl $~TS_COMPAT,TI_status+THREAD_INFO(%rsp,RIP-ARGOFFSET)
8724 + pax_exit_kernel_user
8725 + pax_erase_kstack
8726 + andl $~TS_COMPAT,TI_status(%r11)
8727 /* clear IF, that popfq doesn't enable interrupts early */
8728 andl $~0x200,EFLAGS-R11(%rsp)
8729 movl RIP-R11(%rsp),%edx /* User %eip */
8730 @@ -190,6 +230,9 @@ sysexit_from_sys_call:
8731 movl %eax,%esi /* 2nd arg: syscall number */
8732 movl $AUDIT_ARCH_I386,%edi /* 1st arg: audit arch */
8733 call __audit_syscall_entry
8734 +
8735 + pax_erase_kstack
8736 +
8737 movl RAX-ARGOFFSET(%rsp),%eax /* reload syscall number */
8738 cmpq $(IA32_NR_syscalls-1),%rax
8739 ja ia32_badsys
8740 @@ -201,7 +244,7 @@ sysexit_from_sys_call:
8741 .endm
8742
8743 .macro auditsys_exit exit
8744 - testl $(_TIF_ALLWORK_MASK & ~_TIF_SYSCALL_AUDIT),TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
8745 + testl $(_TIF_ALLWORK_MASK & ~_TIF_SYSCALL_AUDIT),TI_flags(%r11)
8746 jnz ia32_ret_from_sys_call
8747 TRACE_IRQS_ON
8748 sti
8749 @@ -212,11 +255,12 @@ sysexit_from_sys_call:
8750 1: setbe %al /* 1 if error, 0 if not */
8751 movzbl %al,%edi /* zero-extend that into %edi */
8752 call __audit_syscall_exit
8753 + GET_THREAD_INFO(%r11)
8754 movq RAX-ARGOFFSET(%rsp),%rax /* reload syscall return value */
8755 movl $(_TIF_ALLWORK_MASK & ~_TIF_SYSCALL_AUDIT),%edi
8756 cli
8757 TRACE_IRQS_OFF
8758 - testl %edi,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
8759 + testl %edi,TI_flags(%r11)
8760 jz \exit
8761 CLEAR_RREGS -ARGOFFSET
8762 jmp int_with_check
8763 @@ -234,7 +278,7 @@ sysexit_audit:
8764
8765 sysenter_tracesys:
8766 #ifdef CONFIG_AUDITSYSCALL
8767 - testl $(_TIF_WORK_SYSCALL_ENTRY & ~_TIF_SYSCALL_AUDIT),TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
8768 + testl $(_TIF_WORK_SYSCALL_ENTRY & ~_TIF_SYSCALL_AUDIT),TI_flags(%r11)
8769 jz sysenter_auditsys
8770 #endif
8771 SAVE_REST
8772 @@ -242,6 +286,9 @@ sysenter_tracesys:
8773 movq $-ENOSYS,RAX(%rsp)/* ptrace can change this for a bad syscall */
8774 movq %rsp,%rdi /* &pt_regs -> arg1 */
8775 call syscall_trace_enter
8776 +
8777 + pax_erase_kstack
8778 +
8779 LOAD_ARGS32 ARGOFFSET /* reload args from stack in case ptrace changed it */
8780 RESTORE_REST
8781 cmpq $(IA32_NR_syscalls-1),%rax
8782 @@ -273,19 +320,20 @@ ENDPROC(ia32_sysenter_target)
8783 ENTRY(ia32_cstar_target)
8784 CFI_STARTPROC32 simple
8785 CFI_SIGNAL_FRAME
8786 - CFI_DEF_CFA rsp,KERNEL_STACK_OFFSET
8787 + CFI_DEF_CFA rsp,0
8788 CFI_REGISTER rip,rcx
8789 /*CFI_REGISTER rflags,r11*/
8790 SWAPGS_UNSAFE_STACK
8791 movl %esp,%r8d
8792 CFI_REGISTER rsp,r8
8793 movq PER_CPU_VAR(kernel_stack),%rsp
8794 + SAVE_ARGS 8*6,0,0
8795 + pax_enter_kernel_user
8796 /*
8797 * No need to follow this irqs on/off section: the syscall
8798 * disabled irqs and here we enable it straight after entry:
8799 */
8800 ENABLE_INTERRUPTS(CLBR_NONE)
8801 - SAVE_ARGS 8,0,0
8802 movl %eax,%eax /* zero extension */
8803 movq %rax,ORIG_RAX-ARGOFFSET(%rsp)
8804 movq %rcx,RIP-ARGOFFSET(%rsp)
8805 @@ -301,10 +349,17 @@ ENTRY(ia32_cstar_target)
8806 /* no need to do an access_ok check here because r8 has been
8807 32bit zero extended */
8808 /* hardware stack frame is complete now */
8809 +
8810 +#ifdef CONFIG_PAX_MEMORY_UDEREF
8811 + mov $PAX_USER_SHADOW_BASE,%r11
8812 + add %r11,%r8
8813 +#endif
8814 +
8815 1: movl (%r8),%r9d
8816 _ASM_EXTABLE(1b,ia32_badarg)
8817 - orl $TS_COMPAT,TI_status+THREAD_INFO(%rsp,RIP-ARGOFFSET)
8818 - testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
8819 + GET_THREAD_INFO(%r11)
8820 + orl $TS_COMPAT,TI_status(%r11)
8821 + testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags(%r11)
8822 CFI_REMEMBER_STATE
8823 jnz cstar_tracesys
8824 cmpq $IA32_NR_syscalls-1,%rax
8825 @@ -314,12 +369,15 @@ cstar_do_call:
8826 cstar_dispatch:
8827 call *ia32_sys_call_table(,%rax,8)
8828 movq %rax,RAX-ARGOFFSET(%rsp)
8829 + GET_THREAD_INFO(%r11)
8830 DISABLE_INTERRUPTS(CLBR_NONE)
8831 TRACE_IRQS_OFF
8832 - testl $_TIF_ALLWORK_MASK,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
8833 + testl $_TIF_ALLWORK_MASK,TI_flags(%r11)
8834 jnz sysretl_audit
8835 sysretl_from_sys_call:
8836 - andl $~TS_COMPAT,TI_status+THREAD_INFO(%rsp,RIP-ARGOFFSET)
8837 + pax_exit_kernel_user
8838 + pax_erase_kstack
8839 + andl $~TS_COMPAT,TI_status(%r11)
8840 RESTORE_ARGS 0,-ARG_SKIP,0,0,0
8841 movl RIP-ARGOFFSET(%rsp),%ecx
8842 CFI_REGISTER rip,rcx
8843 @@ -347,7 +405,7 @@ sysretl_audit:
8844
8845 cstar_tracesys:
8846 #ifdef CONFIG_AUDITSYSCALL
8847 - testl $(_TIF_WORK_SYSCALL_ENTRY & ~_TIF_SYSCALL_AUDIT),TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
8848 + testl $(_TIF_WORK_SYSCALL_ENTRY & ~_TIF_SYSCALL_AUDIT),TI_flags(%r11)
8849 jz cstar_auditsys
8850 #endif
8851 xchgl %r9d,%ebp
8852 @@ -356,6 +414,9 @@ cstar_tracesys:
8853 movq $-ENOSYS,RAX(%rsp) /* ptrace can change this for a bad syscall */
8854 movq %rsp,%rdi /* &pt_regs -> arg1 */
8855 call syscall_trace_enter
8856 +
8857 + pax_erase_kstack
8858 +
8859 LOAD_ARGS32 ARGOFFSET, 1 /* reload args from stack in case ptrace changed it */
8860 RESTORE_REST
8861 xchgl %ebp,%r9d
8862 @@ -401,19 +462,21 @@ ENTRY(ia32_syscall)
8863 CFI_REL_OFFSET rip,RIP-RIP
8864 PARAVIRT_ADJUST_EXCEPTION_FRAME
8865 SWAPGS
8866 - /*
8867 - * No need to follow this irqs on/off section: the syscall
8868 - * disabled irqs and here we enable it straight after entry:
8869 - */
8870 - ENABLE_INTERRUPTS(CLBR_NONE)
8871 movl %eax,%eax
8872 pushq_cfi %rax
8873 cld
8874 /* note the registers are not zero extended to the sf.
8875 this could be a problem. */
8876 SAVE_ARGS 0,1,0
8877 - orl $TS_COMPAT,TI_status+THREAD_INFO(%rsp,RIP-ARGOFFSET)
8878 - testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
8879 + pax_enter_kernel_user
8880 + /*
8881 + * No need to follow this irqs on/off section: the syscall
8882 + * disabled irqs and here we enable it straight after entry:
8883 + */
8884 + ENABLE_INTERRUPTS(CLBR_NONE)
8885 + GET_THREAD_INFO(%r11)
8886 + orl $TS_COMPAT,TI_status(%r11)
8887 + testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags(%r11)
8888 jnz ia32_tracesys
8889 cmpq $(IA32_NR_syscalls-1),%rax
8890 ja ia32_badsys
8891 @@ -432,6 +495,9 @@ ia32_tracesys:
8892 movq $-ENOSYS,RAX(%rsp) /* ptrace can change this for a bad syscall */
8893 movq %rsp,%rdi /* &pt_regs -> arg1 */
8894 call syscall_trace_enter
8895 +
8896 + pax_erase_kstack
8897 +
8898 LOAD_ARGS32 ARGOFFSET /* reload args from stack in case ptrace changed it */
8899 RESTORE_REST
8900 cmpq $(IA32_NR_syscalls-1),%rax
8901 diff --git a/arch/x86/ia32/sys_ia32.c b/arch/x86/ia32/sys_ia32.c
8902 index 4540bec..714d913 100644
8903 --- a/arch/x86/ia32/sys_ia32.c
8904 +++ b/arch/x86/ia32/sys_ia32.c
8905 @@ -69,8 +69,8 @@ asmlinkage long sys32_ftruncate64(unsigned int fd, unsigned long offset_low,
8906 */
8907 static int cp_stat64(struct stat64 __user *ubuf, struct kstat *stat)
8908 {
8909 - typeof(ubuf->st_uid) uid = 0;
8910 - typeof(ubuf->st_gid) gid = 0;
8911 + typeof(((struct stat64 *)0)->st_uid) uid = 0;
8912 + typeof(((struct stat64 *)0)->st_gid) gid = 0;
8913 SET_UID(uid, from_kuid_munged(current_user_ns(), stat->uid));
8914 SET_GID(gid, from_kgid_munged(current_user_ns(), stat->gid));
8915 if (!access_ok(VERIFY_WRITE, ubuf, sizeof(struct stat64)) ||
8916 @@ -287,7 +287,7 @@ asmlinkage long sys32_sigaction(int sig, struct old_sigaction32 __user *act,
8917 return ret;
8918 }
8919
8920 -asmlinkage long sys32_waitpid(compat_pid_t pid, unsigned int *stat_addr,
8921 +asmlinkage long sys32_waitpid(compat_pid_t pid, unsigned int __user *stat_addr,
8922 int options)
8923 {
8924 return compat_sys_wait4(pid, stat_addr, options, NULL);
8925 @@ -303,7 +303,7 @@ asmlinkage long sys32_sched_rr_get_interval(compat_pid_t pid,
8926 mm_segment_t old_fs = get_fs();
8927
8928 set_fs(KERNEL_DS);
8929 - ret = sys_sched_rr_get_interval(pid, (struct timespec __user *)&t);
8930 + ret = sys_sched_rr_get_interval(pid, (struct timespec __force_user *)&t);
8931 set_fs(old_fs);
8932 if (put_compat_timespec(&t, interval))
8933 return -EFAULT;
8934 @@ -319,7 +319,7 @@ asmlinkage long sys32_rt_sigpending(compat_sigset_t __user *set,
8935 mm_segment_t old_fs = get_fs();
8936
8937 set_fs(KERNEL_DS);
8938 - ret = sys_rt_sigpending((sigset_t __user *)&s, sigsetsize);
8939 + ret = sys_rt_sigpending((sigset_t __force_user *)&s, sigsetsize);
8940 set_fs(old_fs);
8941 if (!ret) {
8942 switch (_NSIG_WORDS) {
8943 @@ -344,7 +344,7 @@ asmlinkage long sys32_rt_sigqueueinfo(int pid, int sig,
8944 if (copy_siginfo_from_user32(&info, uinfo))
8945 return -EFAULT;
8946 set_fs(KERNEL_DS);
8947 - ret = sys_rt_sigqueueinfo(pid, sig, (siginfo_t __user *)&info);
8948 + ret = sys_rt_sigqueueinfo(pid, sig, (siginfo_t __force_user *)&info);
8949 set_fs(old_fs);
8950 return ret;
8951 }
8952 @@ -376,7 +376,7 @@ asmlinkage long sys32_sendfile(int out_fd, int in_fd,
8953 return -EFAULT;
8954
8955 set_fs(KERNEL_DS);
8956 - ret = sys_sendfile(out_fd, in_fd, offset ? (off_t __user *)&of : NULL,
8957 + ret = sys_sendfile(out_fd, in_fd, offset ? (off_t __force_user *)&of : NULL,
8958 count);
8959 set_fs(old_fs);
8960
8961 diff --git a/arch/x86/include/asm/alternative-asm.h b/arch/x86/include/asm/alternative-asm.h
8962 index 952bd01..7692c6f 100644
8963 --- a/arch/x86/include/asm/alternative-asm.h
8964 +++ b/arch/x86/include/asm/alternative-asm.h
8965 @@ -15,6 +15,45 @@
8966 .endm
8967 #endif
8968
8969 +#ifdef KERNEXEC_PLUGIN
8970 + .macro pax_force_retaddr_bts rip=0
8971 + btsq $63,\rip(%rsp)
8972 + .endm
8973 +#ifdef CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_BTS
8974 + .macro pax_force_retaddr rip=0, reload=0
8975 + btsq $63,\rip(%rsp)
8976 + .endm
8977 + .macro pax_force_fptr ptr
8978 + btsq $63,\ptr
8979 + .endm
8980 + .macro pax_set_fptr_mask
8981 + .endm
8982 +#endif
8983 +#ifdef CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_OR
8984 + .macro pax_force_retaddr rip=0, reload=0
8985 + .if \reload
8986 + pax_set_fptr_mask
8987 + .endif
8988 + orq %r10,\rip(%rsp)
8989 + .endm
8990 + .macro pax_force_fptr ptr
8991 + orq %r10,\ptr
8992 + .endm
8993 + .macro pax_set_fptr_mask
8994 + movabs $0x8000000000000000,%r10
8995 + .endm
8996 +#endif
8997 +#else
8998 + .macro pax_force_retaddr rip=0, reload=0
8999 + .endm
9000 + .macro pax_force_fptr ptr
9001 + .endm
9002 + .macro pax_force_retaddr_bts rip=0
9003 + .endm
9004 + .macro pax_set_fptr_mask
9005 + .endm
9006 +#endif
9007 +
9008 .macro altinstruction_entry orig alt feature orig_len alt_len
9009 .long \orig - .
9010 .long \alt - .
9011 diff --git a/arch/x86/include/asm/alternative.h b/arch/x86/include/asm/alternative.h
9012 index 49331be..9706065 100644
9013 --- a/arch/x86/include/asm/alternative.h
9014 +++ b/arch/x86/include/asm/alternative.h
9015 @@ -89,7 +89,7 @@ static inline int alternatives_text_reserved(void *start, void *end)
9016 ".section .discard,\"aw\",@progbits\n" \
9017 " .byte 0xff + (664f-663f) - (662b-661b)\n" /* rlen <= slen */ \
9018 ".previous\n" \
9019 - ".section .altinstr_replacement, \"ax\"\n" \
9020 + ".section .altinstr_replacement, \"a\"\n" \
9021 "663:\n\t" newinstr "\n664:\n" /* replacement */ \
9022 ".previous"
9023
9024 diff --git a/arch/x86/include/asm/apic.h b/arch/x86/include/asm/apic.h
9025 index eaff479..3025a63 100644
9026 --- a/arch/x86/include/asm/apic.h
9027 +++ b/arch/x86/include/asm/apic.h
9028 @@ -44,7 +44,7 @@ static inline void generic_apic_probe(void)
9029
9030 #ifdef CONFIG_X86_LOCAL_APIC
9031
9032 -extern unsigned int apic_verbosity;
9033 +extern int apic_verbosity;
9034 extern int local_apic_timer_c2_ok;
9035
9036 extern int disable_apic;
9037 diff --git a/arch/x86/include/asm/apm.h b/arch/x86/include/asm/apm.h
9038 index 20370c6..a2eb9b0 100644
9039 --- a/arch/x86/include/asm/apm.h
9040 +++ b/arch/x86/include/asm/apm.h
9041 @@ -34,7 +34,7 @@ static inline void apm_bios_call_asm(u32 func, u32 ebx_in, u32 ecx_in,
9042 __asm__ __volatile__(APM_DO_ZERO_SEGS
9043 "pushl %%edi\n\t"
9044 "pushl %%ebp\n\t"
9045 - "lcall *%%cs:apm_bios_entry\n\t"
9046 + "lcall *%%ss:apm_bios_entry\n\t"
9047 "setc %%al\n\t"
9048 "popl %%ebp\n\t"
9049 "popl %%edi\n\t"
9050 @@ -58,7 +58,7 @@ static inline u8 apm_bios_call_simple_asm(u32 func, u32 ebx_in,
9051 __asm__ __volatile__(APM_DO_ZERO_SEGS
9052 "pushl %%edi\n\t"
9053 "pushl %%ebp\n\t"
9054 - "lcall *%%cs:apm_bios_entry\n\t"
9055 + "lcall *%%ss:apm_bios_entry\n\t"
9056 "setc %%bl\n\t"
9057 "popl %%ebp\n\t"
9058 "popl %%edi\n\t"
9059 diff --git a/arch/x86/include/asm/atomic.h b/arch/x86/include/asm/atomic.h
9060 index 58cb6d4..a4b806c 100644
9061 --- a/arch/x86/include/asm/atomic.h
9062 +++ b/arch/x86/include/asm/atomic.h
9063 @@ -22,7 +22,18 @@
9064 */
9065 static inline int atomic_read(const atomic_t *v)
9066 {
9067 - return (*(volatile int *)&(v)->counter);
9068 + return (*(volatile const int *)&(v)->counter);
9069 +}
9070 +
9071 +/**
9072 + * atomic_read_unchecked - read atomic variable
9073 + * @v: pointer of type atomic_unchecked_t
9074 + *
9075 + * Atomically reads the value of @v.
9076 + */
9077 +static inline int atomic_read_unchecked(const atomic_unchecked_t *v)
9078 +{
9079 + return (*(volatile const int *)&(v)->counter);
9080 }
9081
9082 /**
9083 @@ -38,6 +49,18 @@ static inline void atomic_set(atomic_t *v, int i)
9084 }
9085
9086 /**
9087 + * atomic_set_unchecked - set atomic variable
9088 + * @v: pointer of type atomic_unchecked_t
9089 + * @i: required value
9090 + *
9091 + * Atomically sets the value of @v to @i.
9092 + */
9093 +static inline void atomic_set_unchecked(atomic_unchecked_t *v, int i)
9094 +{
9095 + v->counter = i;
9096 +}
9097 +
9098 +/**
9099 * atomic_add - add integer to atomic variable
9100 * @i: integer value to add
9101 * @v: pointer of type atomic_t
9102 @@ -46,7 +69,29 @@ static inline void atomic_set(atomic_t *v, int i)
9103 */
9104 static inline void atomic_add(int i, atomic_t *v)
9105 {
9106 - asm volatile(LOCK_PREFIX "addl %1,%0"
9107 + asm volatile(LOCK_PREFIX "addl %1,%0\n"
9108 +
9109 +#ifdef CONFIG_PAX_REFCOUNT
9110 + "jno 0f\n"
9111 + LOCK_PREFIX "subl %1,%0\n"
9112 + "int $4\n0:\n"
9113 + _ASM_EXTABLE(0b, 0b)
9114 +#endif
9115 +
9116 + : "+m" (v->counter)
9117 + : "ir" (i));
9118 +}
9119 +
9120 +/**
9121 + * atomic_add_unchecked - add integer to atomic variable
9122 + * @i: integer value to add
9123 + * @v: pointer of type atomic_unchecked_t
9124 + *
9125 + * Atomically adds @i to @v.
9126 + */
9127 +static inline void atomic_add_unchecked(int i, atomic_unchecked_t *v)
9128 +{
9129 + asm volatile(LOCK_PREFIX "addl %1,%0\n"
9130 : "+m" (v->counter)
9131 : "ir" (i));
9132 }
9133 @@ -60,7 +105,29 @@ static inline void atomic_add(int i, atomic_t *v)
9134 */
9135 static inline void atomic_sub(int i, atomic_t *v)
9136 {
9137 - asm volatile(LOCK_PREFIX "subl %1,%0"
9138 + asm volatile(LOCK_PREFIX "subl %1,%0\n"
9139 +
9140 +#ifdef CONFIG_PAX_REFCOUNT
9141 + "jno 0f\n"
9142 + LOCK_PREFIX "addl %1,%0\n"
9143 + "int $4\n0:\n"
9144 + _ASM_EXTABLE(0b, 0b)
9145 +#endif
9146 +
9147 + : "+m" (v->counter)
9148 + : "ir" (i));
9149 +}
9150 +
9151 +/**
9152 + * atomic_sub_unchecked - subtract integer from atomic variable
9153 + * @i: integer value to subtract
9154 + * @v: pointer of type atomic_unchecked_t
9155 + *
9156 + * Atomically subtracts @i from @v.
9157 + */
9158 +static inline void atomic_sub_unchecked(int i, atomic_unchecked_t *v)
9159 +{
9160 + asm volatile(LOCK_PREFIX "subl %1,%0\n"
9161 : "+m" (v->counter)
9162 : "ir" (i));
9163 }
9164 @@ -78,7 +145,16 @@ static inline int atomic_sub_and_test(int i, atomic_t *v)
9165 {
9166 unsigned char c;
9167
9168 - asm volatile(LOCK_PREFIX "subl %2,%0; sete %1"
9169 + asm volatile(LOCK_PREFIX "subl %2,%0\n"
9170 +
9171 +#ifdef CONFIG_PAX_REFCOUNT
9172 + "jno 0f\n"
9173 + LOCK_PREFIX "addl %2,%0\n"
9174 + "int $4\n0:\n"
9175 + _ASM_EXTABLE(0b, 0b)
9176 +#endif
9177 +
9178 + "sete %1\n"
9179 : "+m" (v->counter), "=qm" (c)
9180 : "ir" (i) : "memory");
9181 return c;
9182 @@ -92,7 +168,27 @@ static inline int atomic_sub_and_test(int i, atomic_t *v)
9183 */
9184 static inline void atomic_inc(atomic_t *v)
9185 {
9186 - asm volatile(LOCK_PREFIX "incl %0"
9187 + asm volatile(LOCK_PREFIX "incl %0\n"
9188 +
9189 +#ifdef CONFIG_PAX_REFCOUNT
9190 + "jno 0f\n"
9191 + LOCK_PREFIX "decl %0\n"
9192 + "int $4\n0:\n"
9193 + _ASM_EXTABLE(0b, 0b)
9194 +#endif
9195 +
9196 + : "+m" (v->counter));
9197 +}
9198 +
9199 +/**
9200 + * atomic_inc_unchecked - increment atomic variable
9201 + * @v: pointer of type atomic_unchecked_t
9202 + *
9203 + * Atomically increments @v by 1.
9204 + */
9205 +static inline void atomic_inc_unchecked(atomic_unchecked_t *v)
9206 +{
9207 + asm volatile(LOCK_PREFIX "incl %0\n"
9208 : "+m" (v->counter));
9209 }
9210
9211 @@ -104,7 +200,27 @@ static inline void atomic_inc(atomic_t *v)
9212 */
9213 static inline void atomic_dec(atomic_t *v)
9214 {
9215 - asm volatile(LOCK_PREFIX "decl %0"
9216 + asm volatile(LOCK_PREFIX "decl %0\n"
9217 +
9218 +#ifdef CONFIG_PAX_REFCOUNT
9219 + "jno 0f\n"
9220 + LOCK_PREFIX "incl %0\n"
9221 + "int $4\n0:\n"
9222 + _ASM_EXTABLE(0b, 0b)
9223 +#endif
9224 +
9225 + : "+m" (v->counter));
9226 +}
9227 +
9228 +/**
9229 + * atomic_dec_unchecked - decrement atomic variable
9230 + * @v: pointer of type atomic_unchecked_t
9231 + *
9232 + * Atomically decrements @v by 1.
9233 + */
9234 +static inline void atomic_dec_unchecked(atomic_unchecked_t *v)
9235 +{
9236 + asm volatile(LOCK_PREFIX "decl %0\n"
9237 : "+m" (v->counter));
9238 }
9239
9240 @@ -120,7 +236,16 @@ static inline int atomic_dec_and_test(atomic_t *v)
9241 {
9242 unsigned char c;
9243
9244 - asm volatile(LOCK_PREFIX "decl %0; sete %1"
9245 + asm volatile(LOCK_PREFIX "decl %0\n"
9246 +
9247 +#ifdef CONFIG_PAX_REFCOUNT
9248 + "jno 0f\n"
9249 + LOCK_PREFIX "incl %0\n"
9250 + "int $4\n0:\n"
9251 + _ASM_EXTABLE(0b, 0b)
9252 +#endif
9253 +
9254 + "sete %1\n"
9255 : "+m" (v->counter), "=qm" (c)
9256 : : "memory");
9257 return c != 0;
9258 @@ -138,7 +263,35 @@ static inline int atomic_inc_and_test(atomic_t *v)
9259 {
9260 unsigned char c;
9261
9262 - asm volatile(LOCK_PREFIX "incl %0; sete %1"
9263 + asm volatile(LOCK_PREFIX "incl %0\n"
9264 +
9265 +#ifdef CONFIG_PAX_REFCOUNT
9266 + "jno 0f\n"
9267 + LOCK_PREFIX "decl %0\n"
9268 + "int $4\n0:\n"
9269 + _ASM_EXTABLE(0b, 0b)
9270 +#endif
9271 +
9272 + "sete %1\n"
9273 + : "+m" (v->counter), "=qm" (c)
9274 + : : "memory");
9275 + return c != 0;
9276 +}
9277 +
9278 +/**
9279 + * atomic_inc_and_test_unchecked - increment and test
9280 + * @v: pointer of type atomic_unchecked_t
9281 + *
9282 + * Atomically increments @v by 1
9283 + * and returns true if the result is zero, or false for all
9284 + * other cases.
9285 + */
9286 +static inline int atomic_inc_and_test_unchecked(atomic_unchecked_t *v)
9287 +{
9288 + unsigned char c;
9289 +
9290 + asm volatile(LOCK_PREFIX "incl %0\n"
9291 + "sete %1\n"
9292 : "+m" (v->counter), "=qm" (c)
9293 : : "memory");
9294 return c != 0;
9295 @@ -157,7 +310,16 @@ static inline int atomic_add_negative(int i, atomic_t *v)
9296 {
9297 unsigned char c;
9298
9299 - asm volatile(LOCK_PREFIX "addl %2,%0; sets %1"
9300 + asm volatile(LOCK_PREFIX "addl %2,%0\n"
9301 +
9302 +#ifdef CONFIG_PAX_REFCOUNT
9303 + "jno 0f\n"
9304 + LOCK_PREFIX "subl %2,%0\n"
9305 + "int $4\n0:\n"
9306 + _ASM_EXTABLE(0b, 0b)
9307 +#endif
9308 +
9309 + "sets %1\n"
9310 : "+m" (v->counter), "=qm" (c)
9311 : "ir" (i) : "memory");
9312 return c;
9313 @@ -179,7 +341,7 @@ static inline int atomic_add_return(int i, atomic_t *v)
9314 goto no_xadd;
9315 #endif
9316 /* Modern 486+ processor */
9317 - return i + xadd(&v->counter, i);
9318 + return i + xadd_check_overflow(&v->counter, i);
9319
9320 #ifdef CONFIG_M386
9321 no_xadd: /* Legacy 386 processor */
9322 @@ -192,6 +354,34 @@ no_xadd: /* Legacy 386 processor */
9323 }
9324
9325 /**
9326 + * atomic_add_return_unchecked - add integer and return
9327 + * @i: integer value to add
9328 + * @v: pointer of type atomic_unchecked_t
9329 + *
9330 + * Atomically adds @i to @v and returns @i + @v
9331 + */
9332 +static inline int atomic_add_return_unchecked(int i, atomic_unchecked_t *v)
9333 +{
9334 +#ifdef CONFIG_M386
9335 + int __i;
9336 + unsigned long flags;
9337 + if (unlikely(boot_cpu_data.x86 <= 3))
9338 + goto no_xadd;
9339 +#endif
9340 + /* Modern 486+ processor */
9341 + return i + xadd(&v->counter, i);
9342 +
9343 +#ifdef CONFIG_M386
9344 +no_xadd: /* Legacy 386 processor */
9345 + raw_local_irq_save(flags);
9346 + __i = atomic_read_unchecked(v);
9347 + atomic_set_unchecked(v, i + __i);
9348 + raw_local_irq_restore(flags);
9349 + return i + __i;
9350 +#endif
9351 +}
9352 +
9353 +/**
9354 * atomic_sub_return - subtract integer and return
9355 * @v: pointer of type atomic_t
9356 * @i: integer value to subtract
9357 @@ -204,6 +394,10 @@ static inline int atomic_sub_return(int i, atomic_t *v)
9358 }
9359
9360 #define atomic_inc_return(v) (atomic_add_return(1, v))
9361 +static inline int atomic_inc_return_unchecked(atomic_unchecked_t *v)
9362 +{
9363 + return atomic_add_return_unchecked(1, v);
9364 +}
9365 #define atomic_dec_return(v) (atomic_sub_return(1, v))
9366
9367 static inline int atomic_cmpxchg(atomic_t *v, int old, int new)
9368 @@ -211,11 +405,21 @@ static inline int atomic_cmpxchg(atomic_t *v, int old, int new)
9369 return cmpxchg(&v->counter, old, new);
9370 }
9371
9372 +static inline int atomic_cmpxchg_unchecked(atomic_unchecked_t *v, int old, int new)
9373 +{
9374 + return cmpxchg(&v->counter, old, new);
9375 +}
9376 +
9377 static inline int atomic_xchg(atomic_t *v, int new)
9378 {
9379 return xchg(&v->counter, new);
9380 }
9381
9382 +static inline int atomic_xchg_unchecked(atomic_unchecked_t *v, int new)
9383 +{
9384 + return xchg(&v->counter, new);
9385 +}
9386 +
9387 /**
9388 * __atomic_add_unless - add unless the number is already a given value
9389 * @v: pointer of type atomic_t
9390 @@ -227,12 +431,25 @@ static inline int atomic_xchg(atomic_t *v, int new)
9391 */
9392 static inline int __atomic_add_unless(atomic_t *v, int a, int u)
9393 {
9394 - int c, old;
9395 + int c, old, new;
9396 c = atomic_read(v);
9397 for (;;) {
9398 - if (unlikely(c == (u)))
9399 + if (unlikely(c == u))
9400 break;
9401 - old = atomic_cmpxchg((v), c, c + (a));
9402 +
9403 + asm volatile("addl %2,%0\n"
9404 +
9405 +#ifdef CONFIG_PAX_REFCOUNT
9406 + "jno 0f\n"
9407 + "subl %2,%0\n"
9408 + "int $4\n0:\n"
9409 + _ASM_EXTABLE(0b, 0b)
9410 +#endif
9411 +
9412 + : "=r" (new)
9413 + : "0" (c), "ir" (a));
9414 +
9415 + old = atomic_cmpxchg(v, c, new);
9416 if (likely(old == c))
9417 break;
9418 c = old;
9419 @@ -240,6 +457,48 @@ static inline int __atomic_add_unless(atomic_t *v, int a, int u)
9420 return c;
9421 }
9422
9423 +/**
9424 + * atomic_inc_not_zero_hint - increment if not null
9425 + * @v: pointer of type atomic_t
9426 + * @hint: probable value of the atomic before the increment
9427 + *
9428 + * This version of atomic_inc_not_zero() gives a hint of probable
9429 + * value of the atomic. This helps processor to not read the memory
9430 + * before doing the atomic read/modify/write cycle, lowering
9431 + * number of bus transactions on some arches.
9432 + *
9433 + * Returns: 0 if increment was not done, 1 otherwise.
9434 + */
9435 +#define atomic_inc_not_zero_hint atomic_inc_not_zero_hint
9436 +static inline int atomic_inc_not_zero_hint(atomic_t *v, int hint)
9437 +{
9438 + int val, c = hint, new;
9439 +
9440 + /* sanity test, should be removed by compiler if hint is a constant */
9441 + if (!hint)
9442 + return __atomic_add_unless(v, 1, 0);
9443 +
9444 + do {
9445 + asm volatile("incl %0\n"
9446 +
9447 +#ifdef CONFIG_PAX_REFCOUNT
9448 + "jno 0f\n"
9449 + "decl %0\n"
9450 + "int $4\n0:\n"
9451 + _ASM_EXTABLE(0b, 0b)
9452 +#endif
9453 +
9454 + : "=r" (new)
9455 + : "0" (c));
9456 +
9457 + val = atomic_cmpxchg(v, c, new);
9458 + if (val == c)
9459 + return 1;
9460 + c = val;
9461 + } while (c);
9462 +
9463 + return 0;
9464 +}
9465
9466 /*
9467 * atomic_dec_if_positive - decrement by 1 if old value positive
9468 @@ -293,14 +552,37 @@ static inline void atomic_or_long(unsigned long *v1, unsigned long v2)
9469 #endif
9470
9471 /* These are x86-specific, used by some header files */
9472 -#define atomic_clear_mask(mask, addr) \
9473 - asm volatile(LOCK_PREFIX "andl %0,%1" \
9474 - : : "r" (~(mask)), "m" (*(addr)) : "memory")
9475 +static inline void atomic_clear_mask(unsigned int mask, atomic_t *v)
9476 +{
9477 + asm volatile(LOCK_PREFIX "andl %1,%0"
9478 + : "+m" (v->counter)
9479 + : "r" (~(mask))
9480 + : "memory");
9481 +}
9482
9483 -#define atomic_set_mask(mask, addr) \
9484 - asm volatile(LOCK_PREFIX "orl %0,%1" \
9485 - : : "r" ((unsigned)(mask)), "m" (*(addr)) \
9486 - : "memory")
9487 +static inline void atomic_clear_mask_unchecked(unsigned int mask, atomic_unchecked_t *v)
9488 +{
9489 + asm volatile(LOCK_PREFIX "andl %1,%0"
9490 + : "+m" (v->counter)
9491 + : "r" (~(mask))
9492 + : "memory");
9493 +}
9494 +
9495 +static inline void atomic_set_mask(unsigned int mask, atomic_t *v)
9496 +{
9497 + asm volatile(LOCK_PREFIX "orl %1,%0"
9498 + : "+m" (v->counter)
9499 + : "r" (mask)
9500 + : "memory");
9501 +}
9502 +
9503 +static inline void atomic_set_mask_unchecked(unsigned int mask, atomic_unchecked_t *v)
9504 +{
9505 + asm volatile(LOCK_PREFIX "orl %1,%0"
9506 + : "+m" (v->counter)
9507 + : "r" (mask)
9508 + : "memory");
9509 +}
9510
9511 /* Atomic operations are already serializing on x86 */
9512 #define smp_mb__before_atomic_dec() barrier()
9513 diff --git a/arch/x86/include/asm/atomic64_32.h b/arch/x86/include/asm/atomic64_32.h
9514 index b154de7..aadebd8 100644
9515 --- a/arch/x86/include/asm/atomic64_32.h
9516 +++ b/arch/x86/include/asm/atomic64_32.h
9517 @@ -12,6 +12,14 @@ typedef struct {
9518 u64 __aligned(8) counter;
9519 } atomic64_t;
9520
9521 +#ifdef CONFIG_PAX_REFCOUNT
9522 +typedef struct {
9523 + u64 __aligned(8) counter;
9524 +} atomic64_unchecked_t;
9525 +#else
9526 +typedef atomic64_t atomic64_unchecked_t;
9527 +#endif
9528 +
9529 #define ATOMIC64_INIT(val) { (val) }
9530
9531 #define __ATOMIC64_DECL(sym) void atomic64_##sym(atomic64_t *, ...)
9532 @@ -37,21 +45,31 @@ typedef struct {
9533 ATOMIC64_DECL_ONE(sym##_386)
9534
9535 ATOMIC64_DECL_ONE(add_386);
9536 +ATOMIC64_DECL_ONE(add_unchecked_386);
9537 ATOMIC64_DECL_ONE(sub_386);
9538 +ATOMIC64_DECL_ONE(sub_unchecked_386);
9539 ATOMIC64_DECL_ONE(inc_386);
9540 +ATOMIC64_DECL_ONE(inc_unchecked_386);
9541 ATOMIC64_DECL_ONE(dec_386);
9542 +ATOMIC64_DECL_ONE(dec_unchecked_386);
9543 #endif
9544
9545 #define alternative_atomic64(f, out, in...) \
9546 __alternative_atomic64(f, f, ASM_OUTPUT2(out), ## in)
9547
9548 ATOMIC64_DECL(read);
9549 +ATOMIC64_DECL(read_unchecked);
9550 ATOMIC64_DECL(set);
9551 +ATOMIC64_DECL(set_unchecked);
9552 ATOMIC64_DECL(xchg);
9553 ATOMIC64_DECL(add_return);
9554 +ATOMIC64_DECL(add_return_unchecked);
9555 ATOMIC64_DECL(sub_return);
9556 +ATOMIC64_DECL(sub_return_unchecked);
9557 ATOMIC64_DECL(inc_return);
9558 +ATOMIC64_DECL(inc_return_unchecked);
9559 ATOMIC64_DECL(dec_return);
9560 +ATOMIC64_DECL(dec_return_unchecked);
9561 ATOMIC64_DECL(dec_if_positive);
9562 ATOMIC64_DECL(inc_not_zero);
9563 ATOMIC64_DECL(add_unless);
9564 @@ -77,6 +95,21 @@ static inline long long atomic64_cmpxchg(atomic64_t *v, long long o, long long n
9565 }
9566
9567 /**
9568 + * atomic64_cmpxchg_unchecked - cmpxchg atomic64 variable
9569 + * @p: pointer to type atomic64_unchecked_t
9570 + * @o: expected value
9571 + * @n: new value
9572 + *
9573 + * Atomically sets @v to @n if it was equal to @o and returns
9574 + * the old value.
9575 + */
9576 +
9577 +static inline long long atomic64_cmpxchg_unchecked(atomic64_unchecked_t *v, long long o, long long n)
9578 +{
9579 + return cmpxchg64(&v->counter, o, n);
9580 +}
9581 +
9582 +/**
9583 * atomic64_xchg - xchg atomic64 variable
9584 * @v: pointer to type atomic64_t
9585 * @n: value to assign
9586 @@ -112,6 +145,22 @@ static inline void atomic64_set(atomic64_t *v, long long i)
9587 }
9588
9589 /**
9590 + * atomic64_set_unchecked - set atomic64 variable
9591 + * @v: pointer to type atomic64_unchecked_t
9592 + * @n: value to assign
9593 + *
9594 + * Atomically sets the value of @v to @n.
9595 + */
9596 +static inline void atomic64_set_unchecked(atomic64_unchecked_t *v, long long i)
9597 +{
9598 + unsigned high = (unsigned)(i >> 32);
9599 + unsigned low = (unsigned)i;
9600 + alternative_atomic64(set, /* no output */,
9601 + "S" (v), "b" (low), "c" (high)
9602 + : "eax", "edx", "memory");
9603 +}
9604 +
9605 +/**
9606 * atomic64_read - read atomic64 variable
9607 * @v: pointer to type atomic64_t
9608 *
9609 @@ -125,6 +174,19 @@ static inline long long atomic64_read(const atomic64_t *v)
9610 }
9611
9612 /**
9613 + * atomic64_read_unchecked - read atomic64 variable
9614 + * @v: pointer to type atomic64_unchecked_t
9615 + *
9616 + * Atomically reads the value of @v and returns it.
9617 + */
9618 +static inline long long atomic64_read_unchecked(atomic64_unchecked_t *v)
9619 +{
9620 + long long r;
9621 + alternative_atomic64(read, "=&A" (r), "c" (v) : "memory");
9622 + return r;
9623 + }
9624 +
9625 +/**
9626 * atomic64_add_return - add and return
9627 * @i: integer value to add
9628 * @v: pointer to type atomic64_t
9629 @@ -139,6 +201,21 @@ static inline long long atomic64_add_return(long long i, atomic64_t *v)
9630 return i;
9631 }
9632
9633 +/**
9634 + * atomic64_add_return_unchecked - add and return
9635 + * @i: integer value to add
9636 + * @v: pointer to type atomic64_unchecked_t
9637 + *
9638 + * Atomically adds @i to @v and returns @i + *@v
9639 + */
9640 +static inline long long atomic64_add_return_unchecked(long long i, atomic64_unchecked_t *v)
9641 +{
9642 + alternative_atomic64(add_return_unchecked,
9643 + ASM_OUTPUT2("+A" (i), "+c" (v)),
9644 + ASM_NO_INPUT_CLOBBER("memory"));
9645 + return i;
9646 +}
9647 +
9648 /*
9649 * Other variants with different arithmetic operators:
9650 */
9651 @@ -158,6 +235,14 @@ static inline long long atomic64_inc_return(atomic64_t *v)
9652 return a;
9653 }
9654
9655 +static inline long long atomic64_inc_return_unchecked(atomic64_unchecked_t *v)
9656 +{
9657 + long long a;
9658 + alternative_atomic64(inc_return_unchecked, "=&A" (a),
9659 + "S" (v) : "memory", "ecx");
9660 + return a;
9661 +}
9662 +
9663 static inline long long atomic64_dec_return(atomic64_t *v)
9664 {
9665 long long a;
9666 @@ -182,6 +267,21 @@ static inline long long atomic64_add(long long i, atomic64_t *v)
9667 }
9668
9669 /**
9670 + * atomic64_add_unchecked - add integer to atomic64 variable
9671 + * @i: integer value to add
9672 + * @v: pointer to type atomic64_unchecked_t
9673 + *
9674 + * Atomically adds @i to @v.
9675 + */
9676 +static inline long long atomic64_add_unchecked(long long i, atomic64_unchecked_t *v)
9677 +{
9678 + __alternative_atomic64(add_unchecked, add_return_unchecked,
9679 + ASM_OUTPUT2("+A" (i), "+c" (v)),
9680 + ASM_NO_INPUT_CLOBBER("memory"));
9681 + return i;
9682 +}
9683 +
9684 +/**
9685 * atomic64_sub - subtract the atomic64 variable
9686 * @i: integer value to subtract
9687 * @v: pointer to type atomic64_t
9688 diff --git a/arch/x86/include/asm/atomic64_64.h b/arch/x86/include/asm/atomic64_64.h
9689 index 0e1cbfc..5623683 100644
9690 --- a/arch/x86/include/asm/atomic64_64.h
9691 +++ b/arch/x86/include/asm/atomic64_64.h
9692 @@ -18,7 +18,19 @@
9693 */
9694 static inline long atomic64_read(const atomic64_t *v)
9695 {
9696 - return (*(volatile long *)&(v)->counter);
9697 + return (*(volatile const long *)&(v)->counter);
9698 +}
9699 +
9700 +/**
9701 + * atomic64_read_unchecked - read atomic64 variable
9702 + * @v: pointer of type atomic64_unchecked_t
9703 + *
9704 + * Atomically reads the value of @v.
9705 + * Doesn't imply a read memory barrier.
9706 + */
9707 +static inline long atomic64_read_unchecked(const atomic64_unchecked_t *v)
9708 +{
9709 + return (*(volatile const long *)&(v)->counter);
9710 }
9711
9712 /**
9713 @@ -34,6 +46,18 @@ static inline void atomic64_set(atomic64_t *v, long i)
9714 }
9715
9716 /**
9717 + * atomic64_set_unchecked - set atomic64 variable
9718 + * @v: pointer to type atomic64_unchecked_t
9719 + * @i: required value
9720 + *
9721 + * Atomically sets the value of @v to @i.
9722 + */
9723 +static inline void atomic64_set_unchecked(atomic64_unchecked_t *v, long i)
9724 +{
9725 + v->counter = i;
9726 +}
9727 +
9728 +/**
9729 * atomic64_add - add integer to atomic64 variable
9730 * @i: integer value to add
9731 * @v: pointer to type atomic64_t
9732 @@ -42,6 +66,28 @@ static inline void atomic64_set(atomic64_t *v, long i)
9733 */
9734 static inline void atomic64_add(long i, atomic64_t *v)
9735 {
9736 + asm volatile(LOCK_PREFIX "addq %1,%0\n"
9737 +
9738 +#ifdef CONFIG_PAX_REFCOUNT
9739 + "jno 0f\n"
9740 + LOCK_PREFIX "subq %1,%0\n"
9741 + "int $4\n0:\n"
9742 + _ASM_EXTABLE(0b, 0b)
9743 +#endif
9744 +
9745 + : "=m" (v->counter)
9746 + : "er" (i), "m" (v->counter));
9747 +}
9748 +
9749 +/**
9750 + * atomic64_add_unchecked - add integer to atomic64 variable
9751 + * @i: integer value to add
9752 + * @v: pointer to type atomic64_unchecked_t
9753 + *
9754 + * Atomically adds @i to @v.
9755 + */
9756 +static inline void atomic64_add_unchecked(long i, atomic64_unchecked_t *v)
9757 +{
9758 asm volatile(LOCK_PREFIX "addq %1,%0"
9759 : "=m" (v->counter)
9760 : "er" (i), "m" (v->counter));
9761 @@ -56,7 +102,29 @@ static inline void atomic64_add(long i, atomic64_t *v)
9762 */
9763 static inline void atomic64_sub(long i, atomic64_t *v)
9764 {
9765 - asm volatile(LOCK_PREFIX "subq %1,%0"
9766 + asm volatile(LOCK_PREFIX "subq %1,%0\n"
9767 +
9768 +#ifdef CONFIG_PAX_REFCOUNT
9769 + "jno 0f\n"
9770 + LOCK_PREFIX "addq %1,%0\n"
9771 + "int $4\n0:\n"
9772 + _ASM_EXTABLE(0b, 0b)
9773 +#endif
9774 +
9775 + : "=m" (v->counter)
9776 + : "er" (i), "m" (v->counter));
9777 +}
9778 +
9779 +/**
9780 + * atomic64_sub_unchecked - subtract the atomic64 variable
9781 + * @i: integer value to subtract
9782 + * @v: pointer to type atomic64_unchecked_t
9783 + *
9784 + * Atomically subtracts @i from @v.
9785 + */
9786 +static inline void atomic64_sub_unchecked(long i, atomic64_unchecked_t *v)
9787 +{
9788 + asm volatile(LOCK_PREFIX "subq %1,%0\n"
9789 : "=m" (v->counter)
9790 : "er" (i), "m" (v->counter));
9791 }
9792 @@ -74,7 +142,16 @@ static inline int atomic64_sub_and_test(long i, atomic64_t *v)
9793 {
9794 unsigned char c;
9795
9796 - asm volatile(LOCK_PREFIX "subq %2,%0; sete %1"
9797 + asm volatile(LOCK_PREFIX "subq %2,%0\n"
9798 +
9799 +#ifdef CONFIG_PAX_REFCOUNT
9800 + "jno 0f\n"
9801 + LOCK_PREFIX "addq %2,%0\n"
9802 + "int $4\n0:\n"
9803 + _ASM_EXTABLE(0b, 0b)
9804 +#endif
9805 +
9806 + "sete %1\n"
9807 : "=m" (v->counter), "=qm" (c)
9808 : "er" (i), "m" (v->counter) : "memory");
9809 return c;
9810 @@ -88,6 +165,27 @@ static inline int atomic64_sub_and_test(long i, atomic64_t *v)
9811 */
9812 static inline void atomic64_inc(atomic64_t *v)
9813 {
9814 + asm volatile(LOCK_PREFIX "incq %0\n"
9815 +
9816 +#ifdef CONFIG_PAX_REFCOUNT
9817 + "jno 0f\n"
9818 + LOCK_PREFIX "decq %0\n"
9819 + "int $4\n0:\n"
9820 + _ASM_EXTABLE(0b, 0b)
9821 +#endif
9822 +
9823 + : "=m" (v->counter)
9824 + : "m" (v->counter));
9825 +}
9826 +
9827 +/**
9828 + * atomic64_inc_unchecked - increment atomic64 variable
9829 + * @v: pointer to type atomic64_unchecked_t
9830 + *
9831 + * Atomically increments @v by 1.
9832 + */
9833 +static inline void atomic64_inc_unchecked(atomic64_unchecked_t *v)
9834 +{
9835 asm volatile(LOCK_PREFIX "incq %0"
9836 : "=m" (v->counter)
9837 : "m" (v->counter));
9838 @@ -101,7 +199,28 @@ static inline void atomic64_inc(atomic64_t *v)
9839 */
9840 static inline void atomic64_dec(atomic64_t *v)
9841 {
9842 - asm volatile(LOCK_PREFIX "decq %0"
9843 + asm volatile(LOCK_PREFIX "decq %0\n"
9844 +
9845 +#ifdef CONFIG_PAX_REFCOUNT
9846 + "jno 0f\n"
9847 + LOCK_PREFIX "incq %0\n"
9848 + "int $4\n0:\n"
9849 + _ASM_EXTABLE(0b, 0b)
9850 +#endif
9851 +
9852 + : "=m" (v->counter)
9853 + : "m" (v->counter));
9854 +}
9855 +
9856 +/**
9857 + * atomic64_dec_unchecked - decrement atomic64 variable
9858 + * @v: pointer to type atomic64_t
9859 + *
9860 + * Atomically decrements @v by 1.
9861 + */
9862 +static inline void atomic64_dec_unchecked(atomic64_unchecked_t *v)
9863 +{
9864 + asm volatile(LOCK_PREFIX "decq %0\n"
9865 : "=m" (v->counter)
9866 : "m" (v->counter));
9867 }
9868 @@ -118,7 +237,16 @@ static inline int atomic64_dec_and_test(atomic64_t *v)
9869 {
9870 unsigned char c;
9871
9872 - asm volatile(LOCK_PREFIX "decq %0; sete %1"
9873 + asm volatile(LOCK_PREFIX "decq %0\n"
9874 +
9875 +#ifdef CONFIG_PAX_REFCOUNT
9876 + "jno 0f\n"
9877 + LOCK_PREFIX "incq %0\n"
9878 + "int $4\n0:\n"
9879 + _ASM_EXTABLE(0b, 0b)
9880 +#endif
9881 +
9882 + "sete %1\n"
9883 : "=m" (v->counter), "=qm" (c)
9884 : "m" (v->counter) : "memory");
9885 return c != 0;
9886 @@ -136,7 +264,16 @@ static inline int atomic64_inc_and_test(atomic64_t *v)
9887 {
9888 unsigned char c;
9889
9890 - asm volatile(LOCK_PREFIX "incq %0; sete %1"
9891 + asm volatile(LOCK_PREFIX "incq %0\n"
9892 +
9893 +#ifdef CONFIG_PAX_REFCOUNT
9894 + "jno 0f\n"
9895 + LOCK_PREFIX "decq %0\n"
9896 + "int $4\n0:\n"
9897 + _ASM_EXTABLE(0b, 0b)
9898 +#endif
9899 +
9900 + "sete %1\n"
9901 : "=m" (v->counter), "=qm" (c)
9902 : "m" (v->counter) : "memory");
9903 return c != 0;
9904 @@ -155,7 +292,16 @@ static inline int atomic64_add_negative(long i, atomic64_t *v)
9905 {
9906 unsigned char c;
9907
9908 - asm volatile(LOCK_PREFIX "addq %2,%0; sets %1"
9909 + asm volatile(LOCK_PREFIX "addq %2,%0\n"
9910 +
9911 +#ifdef CONFIG_PAX_REFCOUNT
9912 + "jno 0f\n"
9913 + LOCK_PREFIX "subq %2,%0\n"
9914 + "int $4\n0:\n"
9915 + _ASM_EXTABLE(0b, 0b)
9916 +#endif
9917 +
9918 + "sets %1\n"
9919 : "=m" (v->counter), "=qm" (c)
9920 : "er" (i), "m" (v->counter) : "memory");
9921 return c;
9922 @@ -170,6 +316,18 @@ static inline int atomic64_add_negative(long i, atomic64_t *v)
9923 */
9924 static inline long atomic64_add_return(long i, atomic64_t *v)
9925 {
9926 + return i + xadd_check_overflow(&v->counter, i);
9927 +}
9928 +
9929 +/**
9930 + * atomic64_add_return_unchecked - add and return
9931 + * @i: integer value to add
9932 + * @v: pointer to type atomic64_unchecked_t
9933 + *
9934 + * Atomically adds @i to @v and returns @i + @v
9935 + */
9936 +static inline long atomic64_add_return_unchecked(long i, atomic64_unchecked_t *v)
9937 +{
9938 return i + xadd(&v->counter, i);
9939 }
9940
9941 @@ -179,6 +337,10 @@ static inline long atomic64_sub_return(long i, atomic64_t *v)
9942 }
9943
9944 #define atomic64_inc_return(v) (atomic64_add_return(1, (v)))
9945 +static inline long atomic64_inc_return_unchecked(atomic64_unchecked_t *v)
9946 +{
9947 + return atomic64_add_return_unchecked(1, v);
9948 +}
9949 #define atomic64_dec_return(v) (atomic64_sub_return(1, (v)))
9950
9951 static inline long atomic64_cmpxchg(atomic64_t *v, long old, long new)
9952 @@ -186,6 +348,11 @@ static inline long atomic64_cmpxchg(atomic64_t *v, long old, long new)
9953 return cmpxchg(&v->counter, old, new);
9954 }
9955
9956 +static inline long atomic64_cmpxchg_unchecked(atomic64_unchecked_t *v, long old, long new)
9957 +{
9958 + return cmpxchg(&v->counter, old, new);
9959 +}
9960 +
9961 static inline long atomic64_xchg(atomic64_t *v, long new)
9962 {
9963 return xchg(&v->counter, new);
9964 @@ -202,17 +369,30 @@ static inline long atomic64_xchg(atomic64_t *v, long new)
9965 */
9966 static inline int atomic64_add_unless(atomic64_t *v, long a, long u)
9967 {
9968 - long c, old;
9969 + long c, old, new;
9970 c = atomic64_read(v);
9971 for (;;) {
9972 - if (unlikely(c == (u)))
9973 + if (unlikely(c == u))
9974 break;
9975 - old = atomic64_cmpxchg((v), c, c + (a));
9976 +
9977 + asm volatile("add %2,%0\n"
9978 +
9979 +#ifdef CONFIG_PAX_REFCOUNT
9980 + "jno 0f\n"
9981 + "sub %2,%0\n"
9982 + "int $4\n0:\n"
9983 + _ASM_EXTABLE(0b, 0b)
9984 +#endif
9985 +
9986 + : "=r" (new)
9987 + : "0" (c), "ir" (a));
9988 +
9989 + old = atomic64_cmpxchg(v, c, new);
9990 if (likely(old == c))
9991 break;
9992 c = old;
9993 }
9994 - return c != (u);
9995 + return c != u;
9996 }
9997
9998 #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
9999 diff --git a/arch/x86/include/asm/bitops.h b/arch/x86/include/asm/bitops.h
10000 index a6983b2..63f48a2 100644
10001 --- a/arch/x86/include/asm/bitops.h
10002 +++ b/arch/x86/include/asm/bitops.h
10003 @@ -40,7 +40,7 @@
10004 * a mask operation on a byte.
10005 */
10006 #define IS_IMMEDIATE(nr) (__builtin_constant_p(nr))
10007 -#define CONST_MASK_ADDR(nr, addr) BITOP_ADDR((void *)(addr) + ((nr)>>3))
10008 +#define CONST_MASK_ADDR(nr, addr) BITOP_ADDR((volatile void *)(addr) + ((nr)>>3))
10009 #define CONST_MASK(nr) (1 << ((nr) & 7))
10010
10011 /**
10012 diff --git a/arch/x86/include/asm/boot.h b/arch/x86/include/asm/boot.h
10013 index b13fe63..0dab13a 100644
10014 --- a/arch/x86/include/asm/boot.h
10015 +++ b/arch/x86/include/asm/boot.h
10016 @@ -11,10 +11,15 @@
10017 #include <asm/pgtable_types.h>
10018
10019 /* Physical address where kernel should be loaded. */
10020 -#define LOAD_PHYSICAL_ADDR ((CONFIG_PHYSICAL_START \
10021 +#define ____LOAD_PHYSICAL_ADDR ((CONFIG_PHYSICAL_START \
10022 + (CONFIG_PHYSICAL_ALIGN - 1)) \
10023 & ~(CONFIG_PHYSICAL_ALIGN - 1))
10024
10025 +#ifndef __ASSEMBLY__
10026 +extern unsigned char __LOAD_PHYSICAL_ADDR[];
10027 +#define LOAD_PHYSICAL_ADDR ((unsigned long)__LOAD_PHYSICAL_ADDR)
10028 +#endif
10029 +
10030 /* Minimum kernel alignment, as a power of two */
10031 #ifdef CONFIG_X86_64
10032 #define MIN_KERNEL_ALIGN_LG2 PMD_SHIFT
10033 diff --git a/arch/x86/include/asm/cache.h b/arch/x86/include/asm/cache.h
10034 index 48f99f1..d78ebf9 100644
10035 --- a/arch/x86/include/asm/cache.h
10036 +++ b/arch/x86/include/asm/cache.h
10037 @@ -5,12 +5,13 @@
10038
10039 /* L1 cache line size */
10040 #define L1_CACHE_SHIFT (CONFIG_X86_L1_CACHE_SHIFT)
10041 -#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
10042 +#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
10043
10044 #define __read_mostly __attribute__((__section__(".data..read_mostly")))
10045 +#define __read_only __attribute__((__section__(".data..read_only")))
10046
10047 #define INTERNODE_CACHE_SHIFT CONFIG_X86_INTERNODE_CACHE_SHIFT
10048 -#define INTERNODE_CACHE_BYTES (1 << INTERNODE_CACHE_SHIFT)
10049 +#define INTERNODE_CACHE_BYTES (_AC(1,UL) << INTERNODE_CACHE_SHIFT)
10050
10051 #ifdef CONFIG_X86_VSMP
10052 #ifdef CONFIG_SMP
10053 diff --git a/arch/x86/include/asm/cacheflush.h b/arch/x86/include/asm/cacheflush.h
10054 index 9863ee3..4a1f8e1 100644
10055 --- a/arch/x86/include/asm/cacheflush.h
10056 +++ b/arch/x86/include/asm/cacheflush.h
10057 @@ -27,7 +27,7 @@ static inline unsigned long get_page_memtype(struct page *pg)
10058 unsigned long pg_flags = pg->flags & _PGMT_MASK;
10059
10060 if (pg_flags == _PGMT_DEFAULT)
10061 - return -1;
10062 + return ~0UL;
10063 else if (pg_flags == _PGMT_WC)
10064 return _PAGE_CACHE_WC;
10065 else if (pg_flags == _PGMT_UC_MINUS)
10066 diff --git a/arch/x86/include/asm/checksum_32.h b/arch/x86/include/asm/checksum_32.h
10067 index 46fc474..b02b0f9 100644
10068 --- a/arch/x86/include/asm/checksum_32.h
10069 +++ b/arch/x86/include/asm/checksum_32.h
10070 @@ -31,6 +31,14 @@ asmlinkage __wsum csum_partial_copy_generic(const void *src, void *dst,
10071 int len, __wsum sum,
10072 int *src_err_ptr, int *dst_err_ptr);
10073
10074 +asmlinkage __wsum csum_partial_copy_generic_to_user(const void *src, void *dst,
10075 + int len, __wsum sum,
10076 + int *src_err_ptr, int *dst_err_ptr);
10077 +
10078 +asmlinkage __wsum csum_partial_copy_generic_from_user(const void *src, void *dst,
10079 + int len, __wsum sum,
10080 + int *src_err_ptr, int *dst_err_ptr);
10081 +
10082 /*
10083 * Note: when you get a NULL pointer exception here this means someone
10084 * passed in an incorrect kernel address to one of these functions.
10085 @@ -50,7 +58,7 @@ static inline __wsum csum_partial_copy_from_user(const void __user *src,
10086 int *err_ptr)
10087 {
10088 might_sleep();
10089 - return csum_partial_copy_generic((__force void *)src, dst,
10090 + return csum_partial_copy_generic_from_user((__force void *)src, dst,
10091 len, sum, err_ptr, NULL);
10092 }
10093
10094 @@ -178,7 +186,7 @@ static inline __wsum csum_and_copy_to_user(const void *src,
10095 {
10096 might_sleep();
10097 if (access_ok(VERIFY_WRITE, dst, len))
10098 - return csum_partial_copy_generic(src, (__force void *)dst,
10099 + return csum_partial_copy_generic_to_user(src, (__force void *)dst,
10100 len, sum, NULL, err_ptr);
10101
10102 if (len)
10103 diff --git a/arch/x86/include/asm/cmpxchg.h b/arch/x86/include/asm/cmpxchg.h
10104 index 99480e5..d81165b 100644
10105 --- a/arch/x86/include/asm/cmpxchg.h
10106 +++ b/arch/x86/include/asm/cmpxchg.h
10107 @@ -14,8 +14,12 @@ extern void __cmpxchg_wrong_size(void)
10108 __compiletime_error("Bad argument size for cmpxchg");
10109 extern void __xadd_wrong_size(void)
10110 __compiletime_error("Bad argument size for xadd");
10111 +extern void __xadd_check_overflow_wrong_size(void)
10112 + __compiletime_error("Bad argument size for xadd_check_overflow");
10113 extern void __add_wrong_size(void)
10114 __compiletime_error("Bad argument size for add");
10115 +extern void __add_check_overflow_wrong_size(void)
10116 + __compiletime_error("Bad argument size for add_check_overflow");
10117
10118 /*
10119 * Constants for operation sizes. On 32-bit, the 64-bit size it set to
10120 @@ -67,6 +71,34 @@ extern void __add_wrong_size(void)
10121 __ret; \
10122 })
10123
10124 +#define __xchg_op_check_overflow(ptr, arg, op, lock) \
10125 + ({ \
10126 + __typeof__ (*(ptr)) __ret = (arg); \
10127 + switch (sizeof(*(ptr))) { \
10128 + case __X86_CASE_L: \
10129 + asm volatile (lock #op "l %0, %1\n" \
10130 + "jno 0f\n" \
10131 + "mov %0,%1\n" \
10132 + "int $4\n0:\n" \
10133 + _ASM_EXTABLE(0b, 0b) \
10134 + : "+r" (__ret), "+m" (*(ptr)) \
10135 + : : "memory", "cc"); \
10136 + break; \
10137 + case __X86_CASE_Q: \
10138 + asm volatile (lock #op "q %q0, %1\n" \
10139 + "jno 0f\n" \
10140 + "mov %0,%1\n" \
10141 + "int $4\n0:\n" \
10142 + _ASM_EXTABLE(0b, 0b) \
10143 + : "+r" (__ret), "+m" (*(ptr)) \
10144 + : : "memory", "cc"); \
10145 + break; \
10146 + default: \
10147 + __ ## op ## _check_overflow_wrong_size(); \
10148 + } \
10149 + __ret; \
10150 + })
10151 +
10152 /*
10153 * Note: no "lock" prefix even on SMP: xchg always implies lock anyway.
10154 * Since this is generally used to protect other memory information, we
10155 @@ -167,6 +199,9 @@ extern void __add_wrong_size(void)
10156 #define xadd_sync(ptr, inc) __xadd((ptr), (inc), "lock; ")
10157 #define xadd_local(ptr, inc) __xadd((ptr), (inc), "")
10158
10159 +#define __xadd_check_overflow(ptr, inc, lock) __xchg_op_check_overflow((ptr), (inc), xadd, lock)
10160 +#define xadd_check_overflow(ptr, inc) __xadd_check_overflow((ptr), (inc), LOCK_PREFIX)
10161 +
10162 #define __add(ptr, inc, lock) \
10163 ({ \
10164 __typeof__ (*(ptr)) __ret = (inc); \
10165 diff --git a/arch/x86/include/asm/cpufeature.h b/arch/x86/include/asm/cpufeature.h
10166 index f91e80f..7f9bd27 100644
10167 --- a/arch/x86/include/asm/cpufeature.h
10168 +++ b/arch/x86/include/asm/cpufeature.h
10169 @@ -371,7 +371,7 @@ static __always_inline __pure bool __static_cpu_has(u16 bit)
10170 ".section .discard,\"aw\",@progbits\n"
10171 " .byte 0xff + (4f-3f) - (2b-1b)\n" /* size check */
10172 ".previous\n"
10173 - ".section .altinstr_replacement,\"ax\"\n"
10174 + ".section .altinstr_replacement,\"a\"\n"
10175 "3: movb $1,%0\n"
10176 "4:\n"
10177 ".previous\n"
10178 diff --git a/arch/x86/include/asm/desc.h b/arch/x86/include/asm/desc.h
10179 index 8bf1c06..f723dfd 100644
10180 --- a/arch/x86/include/asm/desc.h
10181 +++ b/arch/x86/include/asm/desc.h
10182 @@ -4,6 +4,7 @@
10183 #include <asm/desc_defs.h>
10184 #include <asm/ldt.h>
10185 #include <asm/mmu.h>
10186 +#include <asm/pgtable.h>
10187
10188 #include <linux/smp.h>
10189 #include <linux/percpu.h>
10190 @@ -17,6 +18,7 @@ static inline void fill_ldt(struct desc_struct *desc, const struct user_desc *in
10191
10192 desc->type = (info->read_exec_only ^ 1) << 1;
10193 desc->type |= info->contents << 2;
10194 + desc->type |= info->seg_not_present ^ 1;
10195
10196 desc->s = 1;
10197 desc->dpl = 0x3;
10198 @@ -35,19 +37,14 @@ static inline void fill_ldt(struct desc_struct *desc, const struct user_desc *in
10199 }
10200
10201 extern struct desc_ptr idt_descr;
10202 -extern gate_desc idt_table[];
10203 extern struct desc_ptr nmi_idt_descr;
10204 -extern gate_desc nmi_idt_table[];
10205 -
10206 -struct gdt_page {
10207 - struct desc_struct gdt[GDT_ENTRIES];
10208 -} __attribute__((aligned(PAGE_SIZE)));
10209 -
10210 -DECLARE_PER_CPU_PAGE_ALIGNED(struct gdt_page, gdt_page);
10211 +extern gate_desc idt_table[256];
10212 +extern gate_desc nmi_idt_table[256];
10213
10214 +extern struct desc_struct cpu_gdt_table[NR_CPUS][PAGE_SIZE / sizeof(struct desc_struct)];
10215 static inline struct desc_struct *get_cpu_gdt_table(unsigned int cpu)
10216 {
10217 - return per_cpu(gdt_page, cpu).gdt;
10218 + return cpu_gdt_table[cpu];
10219 }
10220
10221 #ifdef CONFIG_X86_64
10222 @@ -72,8 +69,14 @@ static inline void pack_gate(gate_desc *gate, unsigned char type,
10223 unsigned long base, unsigned dpl, unsigned flags,
10224 unsigned short seg)
10225 {
10226 - gate->a = (seg << 16) | (base & 0xffff);
10227 - gate->b = (base & 0xffff0000) | (((0x80 | type | (dpl << 5)) & 0xff) << 8);
10228 + gate->gate.offset_low = base;
10229 + gate->gate.seg = seg;
10230 + gate->gate.reserved = 0;
10231 + gate->gate.type = type;
10232 + gate->gate.s = 0;
10233 + gate->gate.dpl = dpl;
10234 + gate->gate.p = 1;
10235 + gate->gate.offset_high = base >> 16;
10236 }
10237
10238 #endif
10239 @@ -118,12 +121,16 @@ static inline void paravirt_free_ldt(struct desc_struct *ldt, unsigned entries)
10240
10241 static inline void native_write_idt_entry(gate_desc *idt, int entry, const gate_desc *gate)
10242 {
10243 + pax_open_kernel();
10244 memcpy(&idt[entry], gate, sizeof(*gate));
10245 + pax_close_kernel();
10246 }
10247
10248 static inline void native_write_ldt_entry(struct desc_struct *ldt, int entry, const void *desc)
10249 {
10250 + pax_open_kernel();
10251 memcpy(&ldt[entry], desc, 8);
10252 + pax_close_kernel();
10253 }
10254
10255 static inline void
10256 @@ -137,7 +144,9 @@ native_write_gdt_entry(struct desc_struct *gdt, int entry, const void *desc, int
10257 default: size = sizeof(*gdt); break;
10258 }
10259
10260 + pax_open_kernel();
10261 memcpy(&gdt[entry], desc, size);
10262 + pax_close_kernel();
10263 }
10264
10265 static inline void pack_descriptor(struct desc_struct *desc, unsigned long base,
10266 @@ -210,7 +219,9 @@ static inline void native_set_ldt(const void *addr, unsigned int entries)
10267
10268 static inline void native_load_tr_desc(void)
10269 {
10270 + pax_open_kernel();
10271 asm volatile("ltr %w0"::"q" (GDT_ENTRY_TSS*8));
10272 + pax_close_kernel();
10273 }
10274
10275 static inline void native_load_gdt(const struct desc_ptr *dtr)
10276 @@ -247,8 +258,10 @@ static inline void native_load_tls(struct thread_struct *t, unsigned int cpu)
10277 struct desc_struct *gdt = get_cpu_gdt_table(cpu);
10278 unsigned int i;
10279
10280 + pax_open_kernel();
10281 for (i = 0; i < GDT_ENTRY_TLS_ENTRIES; i++)
10282 gdt[GDT_ENTRY_TLS_MIN + i] = t->tls_array[i];
10283 + pax_close_kernel();
10284 }
10285
10286 #define _LDT_empty(info) \
10287 @@ -311,7 +324,7 @@ static inline void set_desc_limit(struct desc_struct *desc, unsigned long limit)
10288 }
10289
10290 #ifdef CONFIG_X86_64
10291 -static inline void set_nmi_gate(int gate, void *addr)
10292 +static inline void set_nmi_gate(int gate, const void *addr)
10293 {
10294 gate_desc s;
10295
10296 @@ -320,7 +333,7 @@ static inline void set_nmi_gate(int gate, void *addr)
10297 }
10298 #endif
10299
10300 -static inline void _set_gate(int gate, unsigned type, void *addr,
10301 +static inline void _set_gate(int gate, unsigned type, const void *addr,
10302 unsigned dpl, unsigned ist, unsigned seg)
10303 {
10304 gate_desc s;
10305 @@ -339,7 +352,7 @@ static inline void _set_gate(int gate, unsigned type, void *addr,
10306 * Pentium F0 0F bugfix can have resulted in the mapped
10307 * IDT being write-protected.
10308 */
10309 -static inline void set_intr_gate(unsigned int n, void *addr)
10310 +static inline void set_intr_gate(unsigned int n, const void *addr)
10311 {
10312 BUG_ON((unsigned)n > 0xFF);
10313 _set_gate(n, GATE_INTERRUPT, addr, 0, 0, __KERNEL_CS);
10314 @@ -369,19 +382,19 @@ static inline void alloc_intr_gate(unsigned int n, void *addr)
10315 /*
10316 * This routine sets up an interrupt gate at directory privilege level 3.
10317 */
10318 -static inline void set_system_intr_gate(unsigned int n, void *addr)
10319 +static inline void set_system_intr_gate(unsigned int n, const void *addr)
10320 {
10321 BUG_ON((unsigned)n > 0xFF);
10322 _set_gate(n, GATE_INTERRUPT, addr, 0x3, 0, __KERNEL_CS);
10323 }
10324
10325 -static inline void set_system_trap_gate(unsigned int n, void *addr)
10326 +static inline void set_system_trap_gate(unsigned int n, const void *addr)
10327 {
10328 BUG_ON((unsigned)n > 0xFF);
10329 _set_gate(n, GATE_TRAP, addr, 0x3, 0, __KERNEL_CS);
10330 }
10331
10332 -static inline void set_trap_gate(unsigned int n, void *addr)
10333 +static inline void set_trap_gate(unsigned int n, const void *addr)
10334 {
10335 BUG_ON((unsigned)n > 0xFF);
10336 _set_gate(n, GATE_TRAP, addr, 0, 0, __KERNEL_CS);
10337 @@ -390,19 +403,31 @@ static inline void set_trap_gate(unsigned int n, void *addr)
10338 static inline void set_task_gate(unsigned int n, unsigned int gdt_entry)
10339 {
10340 BUG_ON((unsigned)n > 0xFF);
10341 - _set_gate(n, GATE_TASK, (void *)0, 0, 0, (gdt_entry<<3));
10342 + _set_gate(n, GATE_TASK, (const void *)0, 0, 0, (gdt_entry<<3));
10343 }
10344
10345 -static inline void set_intr_gate_ist(int n, void *addr, unsigned ist)
10346 +static inline void set_intr_gate_ist(int n, const void *addr, unsigned ist)
10347 {
10348 BUG_ON((unsigned)n > 0xFF);
10349 _set_gate(n, GATE_INTERRUPT, addr, 0, ist, __KERNEL_CS);
10350 }
10351
10352 -static inline void set_system_intr_gate_ist(int n, void *addr, unsigned ist)
10353 +static inline void set_system_intr_gate_ist(int n, const void *addr, unsigned ist)
10354 {
10355 BUG_ON((unsigned)n > 0xFF);
10356 _set_gate(n, GATE_INTERRUPT, addr, 0x3, ist, __KERNEL_CS);
10357 }
10358
10359 +#ifdef CONFIG_X86_32
10360 +static inline void set_user_cs(unsigned long base, unsigned long limit, int cpu)
10361 +{
10362 + struct desc_struct d;
10363 +
10364 + if (likely(limit))
10365 + limit = (limit - 1UL) >> PAGE_SHIFT;
10366 + pack_descriptor(&d, base, limit, 0xFB, 0xC);
10367 + write_gdt_entry(get_cpu_gdt_table(cpu), GDT_ENTRY_DEFAULT_USER_CS, &d, DESCTYPE_S);
10368 +}
10369 +#endif
10370 +
10371 #endif /* _ASM_X86_DESC_H */
10372 diff --git a/arch/x86/include/asm/desc_defs.h b/arch/x86/include/asm/desc_defs.h
10373 index 278441f..b95a174 100644
10374 --- a/arch/x86/include/asm/desc_defs.h
10375 +++ b/arch/x86/include/asm/desc_defs.h
10376 @@ -31,6 +31,12 @@ struct desc_struct {
10377 unsigned base1: 8, type: 4, s: 1, dpl: 2, p: 1;
10378 unsigned limit: 4, avl: 1, l: 1, d: 1, g: 1, base2: 8;
10379 };
10380 + struct {
10381 + u16 offset_low;
10382 + u16 seg;
10383 + unsigned reserved: 8, type: 4, s: 1, dpl: 2, p: 1;
10384 + unsigned offset_high: 16;
10385 + } gate;
10386 };
10387 } __attribute__((packed));
10388
10389 diff --git a/arch/x86/include/asm/e820.h b/arch/x86/include/asm/e820.h
10390 index 3778256..c5d4fce 100644
10391 --- a/arch/x86/include/asm/e820.h
10392 +++ b/arch/x86/include/asm/e820.h
10393 @@ -69,7 +69,7 @@ struct e820map {
10394 #define ISA_START_ADDRESS 0xa0000
10395 #define ISA_END_ADDRESS 0x100000
10396
10397 -#define BIOS_BEGIN 0x000a0000
10398 +#define BIOS_BEGIN 0x000c0000
10399 #define BIOS_END 0x00100000
10400
10401 #define BIOS_ROM_BASE 0xffe00000
10402 diff --git a/arch/x86/include/asm/elf.h b/arch/x86/include/asm/elf.h
10403 index 5939f44..f8845f6 100644
10404 --- a/arch/x86/include/asm/elf.h
10405 +++ b/arch/x86/include/asm/elf.h
10406 @@ -243,7 +243,25 @@ extern int force_personality32;
10407 the loader. We need to make sure that it is out of the way of the program
10408 that it will "exec", and that there is sufficient room for the brk. */
10409
10410 +#ifdef CONFIG_PAX_SEGMEXEC
10411 +#define ELF_ET_DYN_BASE ((current->mm->pax_flags & MF_PAX_SEGMEXEC) ? SEGMEXEC_TASK_SIZE/3*2 : TASK_SIZE/3*2)
10412 +#else
10413 #define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2)
10414 +#endif
10415 +
10416 +#ifdef CONFIG_PAX_ASLR
10417 +#ifdef CONFIG_X86_32
10418 +#define PAX_ELF_ET_DYN_BASE 0x10000000UL
10419 +
10420 +#define PAX_DELTA_MMAP_LEN (current->mm->pax_flags & MF_PAX_SEGMEXEC ? 15 : 16)
10421 +#define PAX_DELTA_STACK_LEN (current->mm->pax_flags & MF_PAX_SEGMEXEC ? 15 : 16)
10422 +#else
10423 +#define PAX_ELF_ET_DYN_BASE 0x400000UL
10424 +
10425 +#define PAX_DELTA_MMAP_LEN ((test_thread_flag(TIF_ADDR32)) ? 16 : TASK_SIZE_MAX_SHIFT - PAGE_SHIFT - 3)
10426 +#define PAX_DELTA_STACK_LEN ((test_thread_flag(TIF_ADDR32)) ? 16 : TASK_SIZE_MAX_SHIFT - PAGE_SHIFT - 3)
10427 +#endif
10428 +#endif
10429
10430 /* This yields a mask that user programs can use to figure out what
10431 instruction set this CPU supports. This could be done in user space,
10432 @@ -296,16 +314,12 @@ do { \
10433
10434 #define ARCH_DLINFO \
10435 do { \
10436 - if (vdso_enabled) \
10437 - NEW_AUX_ENT(AT_SYSINFO_EHDR, \
10438 - (unsigned long)current->mm->context.vdso); \
10439 + NEW_AUX_ENT(AT_SYSINFO_EHDR, current->mm->context.vdso); \
10440 } while (0)
10441
10442 #define ARCH_DLINFO_X32 \
10443 do { \
10444 - if (vdso_enabled) \
10445 - NEW_AUX_ENT(AT_SYSINFO_EHDR, \
10446 - (unsigned long)current->mm->context.vdso); \
10447 + NEW_AUX_ENT(AT_SYSINFO_EHDR, current->mm->context.vdso); \
10448 } while (0)
10449
10450 #define AT_SYSINFO 32
10451 @@ -320,7 +334,7 @@ else \
10452
10453 #endif /* !CONFIG_X86_32 */
10454
10455 -#define VDSO_CURRENT_BASE ((unsigned long)current->mm->context.vdso)
10456 +#define VDSO_CURRENT_BASE (current->mm->context.vdso)
10457
10458 #define VDSO_ENTRY \
10459 ((unsigned long)VDSO32_SYMBOL(VDSO_CURRENT_BASE, vsyscall))
10460 @@ -336,9 +350,6 @@ extern int x32_setup_additional_pages(struct linux_binprm *bprm,
10461 extern int syscall32_setup_pages(struct linux_binprm *, int exstack);
10462 #define compat_arch_setup_additional_pages syscall32_setup_pages
10463
10464 -extern unsigned long arch_randomize_brk(struct mm_struct *mm);
10465 -#define arch_randomize_brk arch_randomize_brk
10466 -
10467 /*
10468 * True on X86_32 or when emulating IA32 on X86_64
10469 */
10470 diff --git a/arch/x86/include/asm/emergency-restart.h b/arch/x86/include/asm/emergency-restart.h
10471 index cc70c1c..d96d011 100644
10472 --- a/arch/x86/include/asm/emergency-restart.h
10473 +++ b/arch/x86/include/asm/emergency-restart.h
10474 @@ -15,6 +15,6 @@ enum reboot_type {
10475
10476 extern enum reboot_type reboot_type;
10477
10478 -extern void machine_emergency_restart(void);
10479 +extern void machine_emergency_restart(void) __noreturn;
10480
10481 #endif /* _ASM_X86_EMERGENCY_RESTART_H */
10482 diff --git a/arch/x86/include/asm/fpu-internal.h b/arch/x86/include/asm/fpu-internal.h
10483 index 75f4c6d..ee3eb8f 100644
10484 --- a/arch/x86/include/asm/fpu-internal.h
10485 +++ b/arch/x86/include/asm/fpu-internal.h
10486 @@ -86,6 +86,11 @@ static inline int fxrstor_checking(struct i387_fxsave_struct *fx)
10487 {
10488 int err;
10489
10490 +#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
10491 + if ((unsigned long)fx < PAX_USER_SHADOW_BASE)
10492 + fx = (struct i387_fxsave_struct __user *)((void *)fx + PAX_USER_SHADOW_BASE);
10493 +#endif
10494 +
10495 /* See comment in fxsave() below. */
10496 #ifdef CONFIG_AS_FXSAVEQ
10497 asm volatile("1: fxrstorq %[fx]\n\t"
10498 @@ -115,6 +120,11 @@ static inline int fxsave_user(struct i387_fxsave_struct __user *fx)
10499 {
10500 int err;
10501
10502 +#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
10503 + if ((unsigned long)fx < PAX_USER_SHADOW_BASE)
10504 + fx = (struct i387_fxsave_struct __user *)((void __user *)fx + PAX_USER_SHADOW_BASE);
10505 +#endif
10506 +
10507 /*
10508 * Clear the bytes not touched by the fxsave and reserved
10509 * for the SW usage.
10510 @@ -271,7 +281,7 @@ static inline int restore_fpu_checking(struct task_struct *tsk)
10511 "emms\n\t" /* clear stack tags */
10512 "fildl %P[addr]", /* set F?P to defined value */
10513 X86_FEATURE_FXSAVE_LEAK,
10514 - [addr] "m" (tsk->thread.fpu.has_fpu));
10515 + [addr] "m" (init_tss[smp_processor_id()].x86_tss.sp0));
10516
10517 return fpu_restore_checking(&tsk->thread.fpu);
10518 }
10519 diff --git a/arch/x86/include/asm/futex.h b/arch/x86/include/asm/futex.h
10520 index 71ecbcb..bac10b7 100644
10521 --- a/arch/x86/include/asm/futex.h
10522 +++ b/arch/x86/include/asm/futex.h
10523 @@ -11,16 +11,18 @@
10524 #include <asm/processor.h>
10525
10526 #define __futex_atomic_op1(insn, ret, oldval, uaddr, oparg) \
10527 + typecheck(u32 __user *, uaddr); \
10528 asm volatile("1:\t" insn "\n" \
10529 "2:\t.section .fixup,\"ax\"\n" \
10530 "3:\tmov\t%3, %1\n" \
10531 "\tjmp\t2b\n" \
10532 "\t.previous\n" \
10533 _ASM_EXTABLE(1b, 3b) \
10534 - : "=r" (oldval), "=r" (ret), "+m" (*uaddr) \
10535 + : "=r" (oldval), "=r" (ret), "+m" (*(u32 __user *)____m(uaddr))\
10536 : "i" (-EFAULT), "0" (oparg), "1" (0))
10537
10538 #define __futex_atomic_op2(insn, ret, oldval, uaddr, oparg) \
10539 + typecheck(u32 __user *, uaddr); \
10540 asm volatile("1:\tmovl %2, %0\n" \
10541 "\tmovl\t%0, %3\n" \
10542 "\t" insn "\n" \
10543 @@ -33,7 +35,7 @@
10544 _ASM_EXTABLE(1b, 4b) \
10545 _ASM_EXTABLE(2b, 4b) \
10546 : "=&a" (oldval), "=&r" (ret), \
10547 - "+m" (*uaddr), "=&r" (tem) \
10548 + "+m" (*(u32 __user *)____m(uaddr)), "=&r" (tem) \
10549 : "r" (oparg), "i" (-EFAULT), "1" (0))
10550
10551 static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
10552 @@ -60,10 +62,10 @@ static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
10553
10554 switch (op) {
10555 case FUTEX_OP_SET:
10556 - __futex_atomic_op1("xchgl %0, %2", ret, oldval, uaddr, oparg);
10557 + __futex_atomic_op1(__copyuser_seg"xchgl %0, %2", ret, oldval, uaddr, oparg);
10558 break;
10559 case FUTEX_OP_ADD:
10560 - __futex_atomic_op1(LOCK_PREFIX "xaddl %0, %2", ret, oldval,
10561 + __futex_atomic_op1(LOCK_PREFIX __copyuser_seg"xaddl %0, %2", ret, oldval,
10562 uaddr, oparg);
10563 break;
10564 case FUTEX_OP_OR:
10565 @@ -122,13 +124,13 @@ static inline int futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
10566 if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
10567 return -EFAULT;
10568
10569 - asm volatile("1:\t" LOCK_PREFIX "cmpxchgl %4, %2\n"
10570 + asm volatile("1:\t" LOCK_PREFIX __copyuser_seg"cmpxchgl %4, %2\n"
10571 "2:\t.section .fixup, \"ax\"\n"
10572 "3:\tmov %3, %0\n"
10573 "\tjmp 2b\n"
10574 "\t.previous\n"
10575 _ASM_EXTABLE(1b, 3b)
10576 - : "+r" (ret), "=a" (oldval), "+m" (*uaddr)
10577 + : "+r" (ret), "=a" (oldval), "+m" (*(u32 __user *)____m(uaddr))
10578 : "i" (-EFAULT), "r" (newval), "1" (oldval)
10579 : "memory"
10580 );
10581 diff --git a/arch/x86/include/asm/hw_irq.h b/arch/x86/include/asm/hw_irq.h
10582 index eb92a6e..b98b2f4 100644
10583 --- a/arch/x86/include/asm/hw_irq.h
10584 +++ b/arch/x86/include/asm/hw_irq.h
10585 @@ -136,8 +136,8 @@ extern void setup_ioapic_dest(void);
10586 extern void enable_IO_APIC(void);
10587
10588 /* Statistics */
10589 -extern atomic_t irq_err_count;
10590 -extern atomic_t irq_mis_count;
10591 +extern atomic_unchecked_t irq_err_count;
10592 +extern atomic_unchecked_t irq_mis_count;
10593
10594 /* EISA */
10595 extern void eisa_set_level_irq(unsigned int irq);
10596 diff --git a/arch/x86/include/asm/io.h b/arch/x86/include/asm/io.h
10597 index d8e8eef..99f81ae 100644
10598 --- a/arch/x86/include/asm/io.h
10599 +++ b/arch/x86/include/asm/io.h
10600 @@ -194,6 +194,17 @@ extern void set_iounmap_nonlazy(void);
10601
10602 #include <linux/vmalloc.h>
10603
10604 +#define ARCH_HAS_VALID_PHYS_ADDR_RANGE
10605 +static inline int valid_phys_addr_range(unsigned long addr, size_t count)
10606 +{
10607 + return ((addr + count + PAGE_SIZE - 1) >> PAGE_SHIFT) < (1ULL << (boot_cpu_data.x86_phys_bits - PAGE_SHIFT)) ? 1 : 0;
10608 +}
10609 +
10610 +static inline int valid_mmap_phys_addr_range(unsigned long pfn, size_t count)
10611 +{
10612 + return (pfn + (count >> PAGE_SHIFT)) < (1ULL << (boot_cpu_data.x86_phys_bits - PAGE_SHIFT)) ? 1 : 0;
10613 +}
10614 +
10615 /*
10616 * Convert a virtual cached pointer to an uncached pointer
10617 */
10618 diff --git a/arch/x86/include/asm/irqflags.h b/arch/x86/include/asm/irqflags.h
10619 index bba3cf8..06bc8da 100644
10620 --- a/arch/x86/include/asm/irqflags.h
10621 +++ b/arch/x86/include/asm/irqflags.h
10622 @@ -141,6 +141,11 @@ static inline notrace unsigned long arch_local_irq_save(void)
10623 sti; \
10624 sysexit
10625
10626 +#define GET_CR0_INTO_RDI mov %cr0, %rdi
10627 +#define SET_RDI_INTO_CR0 mov %rdi, %cr0
10628 +#define GET_CR3_INTO_RDI mov %cr3, %rdi
10629 +#define SET_RDI_INTO_CR3 mov %rdi, %cr3
10630 +
10631 #else
10632 #define INTERRUPT_RETURN iret
10633 #define ENABLE_INTERRUPTS_SYSEXIT sti; sysexit
10634 diff --git a/arch/x86/include/asm/kprobes.h b/arch/x86/include/asm/kprobes.h
10635 index 5478825..839e88c 100644
10636 --- a/arch/x86/include/asm/kprobes.h
10637 +++ b/arch/x86/include/asm/kprobes.h
10638 @@ -37,13 +37,8 @@ typedef u8 kprobe_opcode_t;
10639 #define RELATIVEJUMP_SIZE 5
10640 #define RELATIVECALL_OPCODE 0xe8
10641 #define RELATIVE_ADDR_SIZE 4
10642 -#define MAX_STACK_SIZE 64
10643 -#define MIN_STACK_SIZE(ADDR) \
10644 - (((MAX_STACK_SIZE) < (((unsigned long)current_thread_info()) + \
10645 - THREAD_SIZE - (unsigned long)(ADDR))) \
10646 - ? (MAX_STACK_SIZE) \
10647 - : (((unsigned long)current_thread_info()) + \
10648 - THREAD_SIZE - (unsigned long)(ADDR)))
10649 +#define MAX_STACK_SIZE 64UL
10650 +#define MIN_STACK_SIZE(ADDR) min(MAX_STACK_SIZE, current->thread.sp0 - (unsigned long)(ADDR))
10651
10652 #define flush_insn_slot(p) do { } while (0)
10653
10654 diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
10655 index db7c1f2..92f130a 100644
10656 --- a/arch/x86/include/asm/kvm_host.h
10657 +++ b/arch/x86/include/asm/kvm_host.h
10658 @@ -680,7 +680,7 @@ struct kvm_x86_ops {
10659 int (*check_intercept)(struct kvm_vcpu *vcpu,
10660 struct x86_instruction_info *info,
10661 enum x86_intercept_stage stage);
10662 -};
10663 +} __do_const;
10664
10665 struct kvm_arch_async_pf {
10666 u32 token;
10667 diff --git a/arch/x86/include/asm/local.h b/arch/x86/include/asm/local.h
10668 index c8bed0d..e5721fa 100644
10669 --- a/arch/x86/include/asm/local.h
10670 +++ b/arch/x86/include/asm/local.h
10671 @@ -17,26 +17,58 @@ typedef struct {
10672
10673 static inline void local_inc(local_t *l)
10674 {
10675 - asm volatile(_ASM_INC "%0"
10676 + asm volatile(_ASM_INC "%0\n"
10677 +
10678 +#ifdef CONFIG_PAX_REFCOUNT
10679 + "jno 0f\n"
10680 + _ASM_DEC "%0\n"
10681 + "int $4\n0:\n"
10682 + _ASM_EXTABLE(0b, 0b)
10683 +#endif
10684 +
10685 : "+m" (l->a.counter));
10686 }
10687
10688 static inline void local_dec(local_t *l)
10689 {
10690 - asm volatile(_ASM_DEC "%0"
10691 + asm volatile(_ASM_DEC "%0\n"
10692 +
10693 +#ifdef CONFIG_PAX_REFCOUNT
10694 + "jno 0f\n"
10695 + _ASM_INC "%0\n"
10696 + "int $4\n0:\n"
10697 + _ASM_EXTABLE(0b, 0b)
10698 +#endif
10699 +
10700 : "+m" (l->a.counter));
10701 }
10702
10703 static inline void local_add(long i, local_t *l)
10704 {
10705 - asm volatile(_ASM_ADD "%1,%0"
10706 + asm volatile(_ASM_ADD "%1,%0\n"
10707 +
10708 +#ifdef CONFIG_PAX_REFCOUNT
10709 + "jno 0f\n"
10710 + _ASM_SUB "%1,%0\n"
10711 + "int $4\n0:\n"
10712 + _ASM_EXTABLE(0b, 0b)
10713 +#endif
10714 +
10715 : "+m" (l->a.counter)
10716 : "ir" (i));
10717 }
10718
10719 static inline void local_sub(long i, local_t *l)
10720 {
10721 - asm volatile(_ASM_SUB "%1,%0"
10722 + asm volatile(_ASM_SUB "%1,%0\n"
10723 +
10724 +#ifdef CONFIG_PAX_REFCOUNT
10725 + "jno 0f\n"
10726 + _ASM_ADD "%1,%0\n"
10727 + "int $4\n0:\n"
10728 + _ASM_EXTABLE(0b, 0b)
10729 +#endif
10730 +
10731 : "+m" (l->a.counter)
10732 : "ir" (i));
10733 }
10734 @@ -54,7 +86,16 @@ static inline int local_sub_and_test(long i, local_t *l)
10735 {
10736 unsigned char c;
10737
10738 - asm volatile(_ASM_SUB "%2,%0; sete %1"
10739 + asm volatile(_ASM_SUB "%2,%0\n"
10740 +
10741 +#ifdef CONFIG_PAX_REFCOUNT
10742 + "jno 0f\n"
10743 + _ASM_ADD "%2,%0\n"
10744 + "int $4\n0:\n"
10745 + _ASM_EXTABLE(0b, 0b)
10746 +#endif
10747 +
10748 + "sete %1\n"
10749 : "+m" (l->a.counter), "=qm" (c)
10750 : "ir" (i) : "memory");
10751 return c;
10752 @@ -72,7 +113,16 @@ static inline int local_dec_and_test(local_t *l)
10753 {
10754 unsigned char c;
10755
10756 - asm volatile(_ASM_DEC "%0; sete %1"
10757 + asm volatile(_ASM_DEC "%0\n"
10758 +
10759 +#ifdef CONFIG_PAX_REFCOUNT
10760 + "jno 0f\n"
10761 + _ASM_INC "%0\n"
10762 + "int $4\n0:\n"
10763 + _ASM_EXTABLE(0b, 0b)
10764 +#endif
10765 +
10766 + "sete %1\n"
10767 : "+m" (l->a.counter), "=qm" (c)
10768 : : "memory");
10769 return c != 0;
10770 @@ -90,7 +140,16 @@ static inline int local_inc_and_test(local_t *l)
10771 {
10772 unsigned char c;
10773
10774 - asm volatile(_ASM_INC "%0; sete %1"
10775 + asm volatile(_ASM_INC "%0\n"
10776 +
10777 +#ifdef CONFIG_PAX_REFCOUNT
10778 + "jno 0f\n"
10779 + _ASM_DEC "%0\n"
10780 + "int $4\n0:\n"
10781 + _ASM_EXTABLE(0b, 0b)
10782 +#endif
10783 +
10784 + "sete %1\n"
10785 : "+m" (l->a.counter), "=qm" (c)
10786 : : "memory");
10787 return c != 0;
10788 @@ -109,7 +168,16 @@ static inline int local_add_negative(long i, local_t *l)
10789 {
10790 unsigned char c;
10791
10792 - asm volatile(_ASM_ADD "%2,%0; sets %1"
10793 + asm volatile(_ASM_ADD "%2,%0\n"
10794 +
10795 +#ifdef CONFIG_PAX_REFCOUNT
10796 + "jno 0f\n"
10797 + _ASM_SUB "%2,%0\n"
10798 + "int $4\n0:\n"
10799 + _ASM_EXTABLE(0b, 0b)
10800 +#endif
10801 +
10802 + "sets %1\n"
10803 : "+m" (l->a.counter), "=qm" (c)
10804 : "ir" (i) : "memory");
10805 return c;
10806 @@ -132,7 +200,15 @@ static inline long local_add_return(long i, local_t *l)
10807 #endif
10808 /* Modern 486+ processor */
10809 __i = i;
10810 - asm volatile(_ASM_XADD "%0, %1;"
10811 + asm volatile(_ASM_XADD "%0, %1\n"
10812 +
10813 +#ifdef CONFIG_PAX_REFCOUNT
10814 + "jno 0f\n"
10815 + _ASM_MOV "%0,%1\n"
10816 + "int $4\n0:\n"
10817 + _ASM_EXTABLE(0b, 0b)
10818 +#endif
10819 +
10820 : "+r" (i), "+m" (l->a.counter)
10821 : : "memory");
10822 return i + __i;
10823 diff --git a/arch/x86/include/asm/mman.h b/arch/x86/include/asm/mman.h
10824 index 593e51d..fa69c9a 100644
10825 --- a/arch/x86/include/asm/mman.h
10826 +++ b/arch/x86/include/asm/mman.h
10827 @@ -5,4 +5,14 @@
10828
10829 #include <asm-generic/mman.h>
10830
10831 +#ifdef __KERNEL__
10832 +#ifndef __ASSEMBLY__
10833 +#ifdef CONFIG_X86_32
10834 +#define arch_mmap_check i386_mmap_check
10835 +int i386_mmap_check(unsigned long addr, unsigned long len,
10836 + unsigned long flags);
10837 +#endif
10838 +#endif
10839 +#endif
10840 +
10841 #endif /* _ASM_X86_MMAN_H */
10842 diff --git a/arch/x86/include/asm/mmu.h b/arch/x86/include/asm/mmu.h
10843 index 5f55e69..e20bfb1 100644
10844 --- a/arch/x86/include/asm/mmu.h
10845 +++ b/arch/x86/include/asm/mmu.h
10846 @@ -9,7 +9,7 @@
10847 * we put the segment information here.
10848 */
10849 typedef struct {
10850 - void *ldt;
10851 + struct desc_struct *ldt;
10852 int size;
10853
10854 #ifdef CONFIG_X86_64
10855 @@ -18,7 +18,19 @@ typedef struct {
10856 #endif
10857
10858 struct mutex lock;
10859 - void *vdso;
10860 + unsigned long vdso;
10861 +
10862 +#ifdef CONFIG_X86_32
10863 +#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
10864 + unsigned long user_cs_base;
10865 + unsigned long user_cs_limit;
10866 +
10867 +#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_SMP)
10868 + cpumask_t cpu_user_cs_mask;
10869 +#endif
10870 +
10871 +#endif
10872 +#endif
10873 } mm_context_t;
10874
10875 #ifdef CONFIG_SMP
10876 diff --git a/arch/x86/include/asm/mmu_context.h b/arch/x86/include/asm/mmu_context.h
10877 index cdbf367..adb37ac 100644
10878 --- a/arch/x86/include/asm/mmu_context.h
10879 +++ b/arch/x86/include/asm/mmu_context.h
10880 @@ -24,6 +24,18 @@ void destroy_context(struct mm_struct *mm);
10881
10882 static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk)
10883 {
10884 +
10885 +#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
10886 + unsigned int i;
10887 + pgd_t *pgd;
10888 +
10889 + pax_open_kernel();
10890 + pgd = get_cpu_pgd(smp_processor_id());
10891 + for (i = USER_PGD_PTRS; i < 2 * USER_PGD_PTRS; ++i)
10892 + set_pgd_batched(pgd+i, native_make_pgd(0));
10893 + pax_close_kernel();
10894 +#endif
10895 +
10896 #ifdef CONFIG_SMP
10897 if (this_cpu_read(cpu_tlbstate.state) == TLBSTATE_OK)
10898 this_cpu_write(cpu_tlbstate.state, TLBSTATE_LAZY);
10899 @@ -34,16 +46,30 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
10900 struct task_struct *tsk)
10901 {
10902 unsigned cpu = smp_processor_id();
10903 +#if defined(CONFIG_X86_32) && defined(CONFIG_SMP) && (defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC))
10904 + int tlbstate = TLBSTATE_OK;
10905 +#endif
10906
10907 if (likely(prev != next)) {
10908 #ifdef CONFIG_SMP
10909 +#if defined(CONFIG_X86_32) && (defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC))
10910 + tlbstate = this_cpu_read(cpu_tlbstate.state);
10911 +#endif
10912 this_cpu_write(cpu_tlbstate.state, TLBSTATE_OK);
10913 this_cpu_write(cpu_tlbstate.active_mm, next);
10914 #endif
10915 cpumask_set_cpu(cpu, mm_cpumask(next));
10916
10917 /* Re-load page tables */
10918 +#ifdef CONFIG_PAX_PER_CPU_PGD
10919 + pax_open_kernel();
10920 + __clone_user_pgds(get_cpu_pgd(cpu), next->pgd);
10921 + __shadow_user_pgds(get_cpu_pgd(cpu) + USER_PGD_PTRS, next->pgd);
10922 + pax_close_kernel();
10923 + load_cr3(get_cpu_pgd(cpu));
10924 +#else
10925 load_cr3(next->pgd);
10926 +#endif
10927
10928 /* stop flush ipis for the previous mm */
10929 cpumask_clear_cpu(cpu, mm_cpumask(prev));
10930 @@ -53,9 +79,38 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
10931 */
10932 if (unlikely(prev->context.ldt != next->context.ldt))
10933 load_LDT_nolock(&next->context);
10934 - }
10935 +
10936 +#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_SMP)
10937 + if (!(__supported_pte_mask & _PAGE_NX)) {
10938 + smp_mb__before_clear_bit();
10939 + cpu_clear(cpu, prev->context.cpu_user_cs_mask);
10940 + smp_mb__after_clear_bit();
10941 + cpu_set(cpu, next->context.cpu_user_cs_mask);
10942 + }
10943 +#endif
10944 +
10945 +#if defined(CONFIG_X86_32) && (defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC))
10946 + if (unlikely(prev->context.user_cs_base != next->context.user_cs_base ||
10947 + prev->context.user_cs_limit != next->context.user_cs_limit))
10948 + set_user_cs(next->context.user_cs_base, next->context.user_cs_limit, cpu);
10949 #ifdef CONFIG_SMP
10950 + else if (unlikely(tlbstate != TLBSTATE_OK))
10951 + set_user_cs(next->context.user_cs_base, next->context.user_cs_limit, cpu);
10952 +#endif
10953 +#endif
10954 +
10955 + }
10956 else {
10957 +
10958 +#ifdef CONFIG_PAX_PER_CPU_PGD
10959 + pax_open_kernel();
10960 + __clone_user_pgds(get_cpu_pgd(cpu), next->pgd);
10961 + __shadow_user_pgds(get_cpu_pgd(cpu) + USER_PGD_PTRS, next->pgd);
10962 + pax_close_kernel();
10963 + load_cr3(get_cpu_pgd(cpu));
10964 +#endif
10965 +
10966 +#ifdef CONFIG_SMP
10967 this_cpu_write(cpu_tlbstate.state, TLBSTATE_OK);
10968 BUG_ON(this_cpu_read(cpu_tlbstate.active_mm) != next);
10969
10970 @@ -64,11 +119,28 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
10971 * tlb flush IPI delivery. We must reload CR3
10972 * to make sure to use no freed page tables.
10973 */
10974 +
10975 +#ifndef CONFIG_PAX_PER_CPU_PGD
10976 load_cr3(next->pgd);
10977 +#endif
10978 +
10979 load_LDT_nolock(&next->context);
10980 +
10981 +#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_PAGEEXEC)
10982 + if (!(__supported_pte_mask & _PAGE_NX))
10983 + cpu_set(cpu, next->context.cpu_user_cs_mask);
10984 +#endif
10985 +
10986 +#if defined(CONFIG_X86_32) && (defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC))
10987 +#ifdef CONFIG_PAX_PAGEEXEC
10988 + if (!((next->pax_flags & MF_PAX_PAGEEXEC) && (__supported_pte_mask & _PAGE_NX)))
10989 +#endif
10990 + set_user_cs(next->context.user_cs_base, next->context.user_cs_limit, cpu);
10991 +#endif
10992 +
10993 }
10994 +#endif
10995 }
10996 -#endif
10997 }
10998
10999 #define activate_mm(prev, next) \
11000 diff --git a/arch/x86/include/asm/module.h b/arch/x86/include/asm/module.h
11001 index 9eae775..c914fea 100644
11002 --- a/arch/x86/include/asm/module.h
11003 +++ b/arch/x86/include/asm/module.h
11004 @@ -5,6 +5,7 @@
11005
11006 #ifdef CONFIG_X86_64
11007 /* X86_64 does not define MODULE_PROC_FAMILY */
11008 +#define MODULE_PROC_FAMILY ""
11009 #elif defined CONFIG_M386
11010 #define MODULE_PROC_FAMILY "386 "
11011 #elif defined CONFIG_M486
11012 @@ -59,8 +60,20 @@
11013 #error unknown processor family
11014 #endif
11015
11016 -#ifdef CONFIG_X86_32
11017 -# define MODULE_ARCH_VERMAGIC MODULE_PROC_FAMILY
11018 +#ifdef CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_BTS
11019 +#define MODULE_PAX_KERNEXEC "KERNEXEC_BTS "
11020 +#elif defined(CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_OR)
11021 +#define MODULE_PAX_KERNEXEC "KERNEXEC_OR "
11022 +#else
11023 +#define MODULE_PAX_KERNEXEC ""
11024 #endif
11025
11026 +#ifdef CONFIG_PAX_MEMORY_UDEREF
11027 +#define MODULE_PAX_UDEREF "UDEREF "
11028 +#else
11029 +#define MODULE_PAX_UDEREF ""
11030 +#endif
11031 +
11032 +#define MODULE_ARCH_VERMAGIC MODULE_PROC_FAMILY MODULE_PAX_KERNEXEC MODULE_PAX_UDEREF
11033 +
11034 #endif /* _ASM_X86_MODULE_H */
11035 diff --git a/arch/x86/include/asm/page_64_types.h b/arch/x86/include/asm/page_64_types.h
11036 index 320f7bb..e89f8f8 100644
11037 --- a/arch/x86/include/asm/page_64_types.h
11038 +++ b/arch/x86/include/asm/page_64_types.h
11039 @@ -56,7 +56,7 @@ void copy_page(void *to, void *from);
11040
11041 /* duplicated to the one in bootmem.h */
11042 extern unsigned long max_pfn;
11043 -extern unsigned long phys_base;
11044 +extern const unsigned long phys_base;
11045
11046 extern unsigned long __phys_addr(unsigned long);
11047 #define __phys_reloc_hide(x) (x)
11048 diff --git a/arch/x86/include/asm/paravirt.h b/arch/x86/include/asm/paravirt.h
11049 index 6cbbabf..11b3aed 100644
11050 --- a/arch/x86/include/asm/paravirt.h
11051 +++ b/arch/x86/include/asm/paravirt.h
11052 @@ -668,6 +668,18 @@ static inline void set_pgd(pgd_t *pgdp, pgd_t pgd)
11053 val);
11054 }
11055
11056 +static inline void set_pgd_batched(pgd_t *pgdp, pgd_t pgd)
11057 +{
11058 + pgdval_t val = native_pgd_val(pgd);
11059 +
11060 + if (sizeof(pgdval_t) > sizeof(long))
11061 + PVOP_VCALL3(pv_mmu_ops.set_pgd_batched, pgdp,
11062 + val, (u64)val >> 32);
11063 + else
11064 + PVOP_VCALL2(pv_mmu_ops.set_pgd_batched, pgdp,
11065 + val);
11066 +}
11067 +
11068 static inline void pgd_clear(pgd_t *pgdp)
11069 {
11070 set_pgd(pgdp, __pgd(0));
11071 @@ -749,6 +761,21 @@ static inline void __set_fixmap(unsigned /* enum fixed_addresses */ idx,
11072 pv_mmu_ops.set_fixmap(idx, phys, flags);
11073 }
11074
11075 +#ifdef CONFIG_PAX_KERNEXEC
11076 +static inline unsigned long pax_open_kernel(void)
11077 +{
11078 + return PVOP_CALL0(unsigned long, pv_mmu_ops.pax_open_kernel);
11079 +}
11080 +
11081 +static inline unsigned long pax_close_kernel(void)
11082 +{
11083 + return PVOP_CALL0(unsigned long, pv_mmu_ops.pax_close_kernel);
11084 +}
11085 +#else
11086 +static inline unsigned long pax_open_kernel(void) { return 0; }
11087 +static inline unsigned long pax_close_kernel(void) { return 0; }
11088 +#endif
11089 +
11090 #if defined(CONFIG_SMP) && defined(CONFIG_PARAVIRT_SPINLOCKS)
11091
11092 static inline int arch_spin_is_locked(struct arch_spinlock *lock)
11093 @@ -965,7 +992,7 @@ extern void default_banner(void);
11094
11095 #define PARA_PATCH(struct, off) ((PARAVIRT_PATCH_##struct + (off)) / 4)
11096 #define PARA_SITE(ptype, clobbers, ops) _PVSITE(ptype, clobbers, ops, .long, 4)
11097 -#define PARA_INDIRECT(addr) *%cs:addr
11098 +#define PARA_INDIRECT(addr) *%ss:addr
11099 #endif
11100
11101 #define INTERRUPT_RETURN \
11102 @@ -1040,6 +1067,21 @@ extern void default_banner(void);
11103 PARA_SITE(PARA_PATCH(pv_cpu_ops, PV_CPU_irq_enable_sysexit), \
11104 CLBR_NONE, \
11105 jmp PARA_INDIRECT(pv_cpu_ops+PV_CPU_irq_enable_sysexit))
11106 +
11107 +#define GET_CR0_INTO_RDI \
11108 + call PARA_INDIRECT(pv_cpu_ops+PV_CPU_read_cr0); \
11109 + mov %rax,%rdi
11110 +
11111 +#define SET_RDI_INTO_CR0 \
11112 + call PARA_INDIRECT(pv_cpu_ops+PV_CPU_write_cr0)
11113 +
11114 +#define GET_CR3_INTO_RDI \
11115 + call PARA_INDIRECT(pv_mmu_ops+PV_MMU_read_cr3); \
11116 + mov %rax,%rdi
11117 +
11118 +#define SET_RDI_INTO_CR3 \
11119 + call PARA_INDIRECT(pv_mmu_ops+PV_MMU_write_cr3)
11120 +
11121 #endif /* CONFIG_X86_32 */
11122
11123 #endif /* __ASSEMBLY__ */
11124 diff --git a/arch/x86/include/asm/paravirt_types.h b/arch/x86/include/asm/paravirt_types.h
11125 index 8e8b9a4..f07d725 100644
11126 --- a/arch/x86/include/asm/paravirt_types.h
11127 +++ b/arch/x86/include/asm/paravirt_types.h
11128 @@ -84,20 +84,20 @@ struct pv_init_ops {
11129 */
11130 unsigned (*patch)(u8 type, u16 clobber, void *insnbuf,
11131 unsigned long addr, unsigned len);
11132 -};
11133 +} __no_const;
11134
11135
11136 struct pv_lazy_ops {
11137 /* Set deferred update mode, used for batching operations. */
11138 void (*enter)(void);
11139 void (*leave)(void);
11140 -};
11141 +} __no_const;
11142
11143 struct pv_time_ops {
11144 unsigned long long (*sched_clock)(void);
11145 unsigned long long (*steal_clock)(int cpu);
11146 unsigned long (*get_tsc_khz)(void);
11147 -};
11148 +} __no_const;
11149
11150 struct pv_cpu_ops {
11151 /* hooks for various privileged instructions */
11152 @@ -193,7 +193,7 @@ struct pv_cpu_ops {
11153
11154 void (*start_context_switch)(struct task_struct *prev);
11155 void (*end_context_switch)(struct task_struct *next);
11156 -};
11157 +} __no_const;
11158
11159 struct pv_irq_ops {
11160 /*
11161 @@ -224,7 +224,7 @@ struct pv_apic_ops {
11162 unsigned long start_eip,
11163 unsigned long start_esp);
11164 #endif
11165 -};
11166 +} __no_const;
11167
11168 struct pv_mmu_ops {
11169 unsigned long (*read_cr2)(void);
11170 @@ -313,6 +313,7 @@ struct pv_mmu_ops {
11171 struct paravirt_callee_save make_pud;
11172
11173 void (*set_pgd)(pgd_t *pudp, pgd_t pgdval);
11174 + void (*set_pgd_batched)(pgd_t *pudp, pgd_t pgdval);
11175 #endif /* PAGETABLE_LEVELS == 4 */
11176 #endif /* PAGETABLE_LEVELS >= 3 */
11177
11178 @@ -324,6 +325,12 @@ struct pv_mmu_ops {
11179 an mfn. We can tell which is which from the index. */
11180 void (*set_fixmap)(unsigned /* enum fixed_addresses */ idx,
11181 phys_addr_t phys, pgprot_t flags);
11182 +
11183 +#ifdef CONFIG_PAX_KERNEXEC
11184 + unsigned long (*pax_open_kernel)(void);
11185 + unsigned long (*pax_close_kernel)(void);
11186 +#endif
11187 +
11188 };
11189
11190 struct arch_spinlock;
11191 @@ -334,7 +341,7 @@ struct pv_lock_ops {
11192 void (*spin_lock_flags)(struct arch_spinlock *lock, unsigned long flags);
11193 int (*spin_trylock)(struct arch_spinlock *lock);
11194 void (*spin_unlock)(struct arch_spinlock *lock);
11195 -};
11196 +} __no_const;
11197
11198 /* This contains all the paravirt structures: we get a convenient
11199 * number for each function using the offset which we use to indicate
11200 diff --git a/arch/x86/include/asm/pgalloc.h b/arch/x86/include/asm/pgalloc.h
11201 index b4389a4..7024269 100644
11202 --- a/arch/x86/include/asm/pgalloc.h
11203 +++ b/arch/x86/include/asm/pgalloc.h
11204 @@ -63,6 +63,13 @@ static inline void pmd_populate_kernel(struct mm_struct *mm,
11205 pmd_t *pmd, pte_t *pte)
11206 {
11207 paravirt_alloc_pte(mm, __pa(pte) >> PAGE_SHIFT);
11208 + set_pmd(pmd, __pmd(__pa(pte) | _KERNPG_TABLE));
11209 +}
11210 +
11211 +static inline void pmd_populate_user(struct mm_struct *mm,
11212 + pmd_t *pmd, pte_t *pte)
11213 +{
11214 + paravirt_alloc_pte(mm, __pa(pte) >> PAGE_SHIFT);
11215 set_pmd(pmd, __pmd(__pa(pte) | _PAGE_TABLE));
11216 }
11217
11218 @@ -99,12 +106,22 @@ static inline void __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd,
11219
11220 #ifdef CONFIG_X86_PAE
11221 extern void pud_populate(struct mm_struct *mm, pud_t *pudp, pmd_t *pmd);
11222 +static inline void pud_populate_kernel(struct mm_struct *mm, pud_t *pudp, pmd_t *pmd)
11223 +{
11224 + pud_populate(mm, pudp, pmd);
11225 +}
11226 #else /* !CONFIG_X86_PAE */
11227 static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
11228 {
11229 paravirt_alloc_pmd(mm, __pa(pmd) >> PAGE_SHIFT);
11230 set_pud(pud, __pud(_PAGE_TABLE | __pa(pmd)));
11231 }
11232 +
11233 +static inline void pud_populate_kernel(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
11234 +{
11235 + paravirt_alloc_pmd(mm, __pa(pmd) >> PAGE_SHIFT);
11236 + set_pud(pud, __pud(_KERNPG_TABLE | __pa(pmd)));
11237 +}
11238 #endif /* CONFIG_X86_PAE */
11239
11240 #if PAGETABLE_LEVELS > 3
11241 @@ -114,6 +131,12 @@ static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, pud_t *pud)
11242 set_pgd(pgd, __pgd(_PAGE_TABLE | __pa(pud)));
11243 }
11244
11245 +static inline void pgd_populate_kernel(struct mm_struct *mm, pgd_t *pgd, pud_t *pud)
11246 +{
11247 + paravirt_alloc_pud(mm, __pa(pud) >> PAGE_SHIFT);
11248 + set_pgd(pgd, __pgd(_KERNPG_TABLE | __pa(pud)));
11249 +}
11250 +
11251 static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr)
11252 {
11253 return (pud_t *)get_zeroed_page(GFP_KERNEL|__GFP_REPEAT);
11254 diff --git a/arch/x86/include/asm/pgtable-2level.h b/arch/x86/include/asm/pgtable-2level.h
11255 index 98391db..8f6984e 100644
11256 --- a/arch/x86/include/asm/pgtable-2level.h
11257 +++ b/arch/x86/include/asm/pgtable-2level.h
11258 @@ -18,7 +18,9 @@ static inline void native_set_pte(pte_t *ptep , pte_t pte)
11259
11260 static inline void native_set_pmd(pmd_t *pmdp, pmd_t pmd)
11261 {
11262 + pax_open_kernel();
11263 *pmdp = pmd;
11264 + pax_close_kernel();
11265 }
11266
11267 static inline void native_set_pte_atomic(pte_t *ptep, pte_t pte)
11268 diff --git a/arch/x86/include/asm/pgtable-3level.h b/arch/x86/include/asm/pgtable-3level.h
11269 index cb00ccc..17e9054 100644
11270 --- a/arch/x86/include/asm/pgtable-3level.h
11271 +++ b/arch/x86/include/asm/pgtable-3level.h
11272 @@ -92,12 +92,16 @@ static inline void native_set_pte_atomic(pte_t *ptep, pte_t pte)
11273
11274 static inline void native_set_pmd(pmd_t *pmdp, pmd_t pmd)
11275 {
11276 + pax_open_kernel();
11277 set_64bit((unsigned long long *)(pmdp), native_pmd_val(pmd));
11278 + pax_close_kernel();
11279 }
11280
11281 static inline void native_set_pud(pud_t *pudp, pud_t pud)
11282 {
11283 + pax_open_kernel();
11284 set_64bit((unsigned long long *)(pudp), native_pud_val(pud));
11285 + pax_close_kernel();
11286 }
11287
11288 /*
11289 diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h
11290 index 49afb3f..91a8c63 100644
11291 --- a/arch/x86/include/asm/pgtable.h
11292 +++ b/arch/x86/include/asm/pgtable.h
11293 @@ -44,6 +44,7 @@ extern struct mm_struct *pgd_page_get_mm(struct page *page);
11294
11295 #ifndef __PAGETABLE_PUD_FOLDED
11296 #define set_pgd(pgdp, pgd) native_set_pgd(pgdp, pgd)
11297 +#define set_pgd_batched(pgdp, pgd) native_set_pgd_batched(pgdp, pgd)
11298 #define pgd_clear(pgd) native_pgd_clear(pgd)
11299 #endif
11300
11301 @@ -81,12 +82,51 @@ extern struct mm_struct *pgd_page_get_mm(struct page *page);
11302
11303 #define arch_end_context_switch(prev) do {} while(0)
11304
11305 +#define pax_open_kernel() native_pax_open_kernel()
11306 +#define pax_close_kernel() native_pax_close_kernel()
11307 #endif /* CONFIG_PARAVIRT */
11308
11309 +#define __HAVE_ARCH_PAX_OPEN_KERNEL
11310 +#define __HAVE_ARCH_PAX_CLOSE_KERNEL
11311 +
11312 +#ifdef CONFIG_PAX_KERNEXEC
11313 +static inline unsigned long native_pax_open_kernel(void)
11314 +{
11315 + unsigned long cr0;
11316 +
11317 + preempt_disable();
11318 + barrier();
11319 + cr0 = read_cr0() ^ X86_CR0_WP;
11320 + BUG_ON(unlikely(cr0 & X86_CR0_WP));
11321 + write_cr0(cr0);
11322 + return cr0 ^ X86_CR0_WP;
11323 +}
11324 +
11325 +static inline unsigned long native_pax_close_kernel(void)
11326 +{
11327 + unsigned long cr0;
11328 +
11329 + cr0 = read_cr0() ^ X86_CR0_WP;
11330 + BUG_ON(unlikely(!(cr0 & X86_CR0_WP)));
11331 + write_cr0(cr0);
11332 + barrier();
11333 + preempt_enable_no_resched();
11334 + return cr0 ^ X86_CR0_WP;
11335 +}
11336 +#else
11337 +static inline unsigned long native_pax_open_kernel(void) { return 0; }
11338 +static inline unsigned long native_pax_close_kernel(void) { return 0; }
11339 +#endif
11340 +
11341 /*
11342 * The following only work if pte_present() is true.
11343 * Undefined behaviour if not..
11344 */
11345 +static inline int pte_user(pte_t pte)
11346 +{
11347 + return pte_val(pte) & _PAGE_USER;
11348 +}
11349 +
11350 static inline int pte_dirty(pte_t pte)
11351 {
11352 return pte_flags(pte) & _PAGE_DIRTY;
11353 @@ -196,9 +236,29 @@ static inline pte_t pte_wrprotect(pte_t pte)
11354 return pte_clear_flags(pte, _PAGE_RW);
11355 }
11356
11357 +static inline pte_t pte_mkread(pte_t pte)
11358 +{
11359 + return __pte(pte_val(pte) | _PAGE_USER);
11360 +}
11361 +
11362 static inline pte_t pte_mkexec(pte_t pte)
11363 {
11364 - return pte_clear_flags(pte, _PAGE_NX);
11365 +#ifdef CONFIG_X86_PAE
11366 + if (__supported_pte_mask & _PAGE_NX)
11367 + return pte_clear_flags(pte, _PAGE_NX);
11368 + else
11369 +#endif
11370 + return pte_set_flags(pte, _PAGE_USER);
11371 +}
11372 +
11373 +static inline pte_t pte_exprotect(pte_t pte)
11374 +{
11375 +#ifdef CONFIG_X86_PAE
11376 + if (__supported_pte_mask & _PAGE_NX)
11377 + return pte_set_flags(pte, _PAGE_NX);
11378 + else
11379 +#endif
11380 + return pte_clear_flags(pte, _PAGE_USER);
11381 }
11382
11383 static inline pte_t pte_mkdirty(pte_t pte)
11384 @@ -390,6 +450,15 @@ pte_t *populate_extra_pte(unsigned long vaddr);
11385 #endif
11386
11387 #ifndef __ASSEMBLY__
11388 +
11389 +#ifdef CONFIG_PAX_PER_CPU_PGD
11390 +extern pgd_t cpu_pgd[NR_CPUS][PTRS_PER_PGD];
11391 +static inline pgd_t *get_cpu_pgd(unsigned int cpu)
11392 +{
11393 + return cpu_pgd[cpu];
11394 +}
11395 +#endif
11396 +
11397 #include <linux/mm_types.h>
11398
11399 static inline int pte_none(pte_t pte)
11400 @@ -560,7 +629,7 @@ static inline pud_t *pud_offset(pgd_t *pgd, unsigned long address)
11401
11402 static inline int pgd_bad(pgd_t pgd)
11403 {
11404 - return (pgd_flags(pgd) & ~_PAGE_USER) != _KERNPG_TABLE;
11405 + return (pgd_flags(pgd) & ~(_PAGE_USER | _PAGE_NX)) != _KERNPG_TABLE;
11406 }
11407
11408 static inline int pgd_none(pgd_t pgd)
11409 @@ -583,7 +652,12 @@ static inline int pgd_none(pgd_t pgd)
11410 * pgd_offset() returns a (pgd_t *)
11411 * pgd_index() is used get the offset into the pgd page's array of pgd_t's;
11412 */
11413 -#define pgd_offset(mm, address) ((mm)->pgd + pgd_index((address)))
11414 +#define pgd_offset(mm, address) ((mm)->pgd + pgd_index(address))
11415 +
11416 +#ifdef CONFIG_PAX_PER_CPU_PGD
11417 +#define pgd_offset_cpu(cpu, address) (get_cpu_pgd(cpu) + pgd_index(address))
11418 +#endif
11419 +
11420 /*
11421 * a shortcut which implies the use of the kernel's pgd, instead
11422 * of a process's
11423 @@ -594,6 +668,20 @@ static inline int pgd_none(pgd_t pgd)
11424 #define KERNEL_PGD_BOUNDARY pgd_index(PAGE_OFFSET)
11425 #define KERNEL_PGD_PTRS (PTRS_PER_PGD - KERNEL_PGD_BOUNDARY)
11426
11427 +#ifdef CONFIG_X86_32
11428 +#define USER_PGD_PTRS KERNEL_PGD_BOUNDARY
11429 +#else
11430 +#define TASK_SIZE_MAX_SHIFT CONFIG_TASK_SIZE_MAX_SHIFT
11431 +#define USER_PGD_PTRS (_AC(1,UL) << (TASK_SIZE_MAX_SHIFT - PGDIR_SHIFT))
11432 +
11433 +#ifdef CONFIG_PAX_MEMORY_UDEREF
11434 +#define PAX_USER_SHADOW_BASE (_AC(1,UL) << TASK_SIZE_MAX_SHIFT)
11435 +#else
11436 +#define PAX_USER_SHADOW_BASE (_AC(0,UL))
11437 +#endif
11438 +
11439 +#endif
11440 +
11441 #ifndef __ASSEMBLY__
11442
11443 extern int direct_gbpages;
11444 @@ -758,11 +846,23 @@ static inline void pmdp_set_wrprotect(struct mm_struct *mm,
11445 * dst and src can be on the same page, but the range must not overlap,
11446 * and must not cross a page boundary.
11447 */
11448 -static inline void clone_pgd_range(pgd_t *dst, pgd_t *src, int count)
11449 +static inline void clone_pgd_range(pgd_t *dst, const pgd_t *src, int count)
11450 {
11451 - memcpy(dst, src, count * sizeof(pgd_t));
11452 + pax_open_kernel();
11453 + while (count--)
11454 + *dst++ = *src++;
11455 + pax_close_kernel();
11456 }
11457
11458 +#ifdef CONFIG_PAX_PER_CPU_PGD
11459 +extern void __clone_user_pgds(pgd_t *dst, const pgd_t *src);
11460 +#endif
11461 +
11462 +#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
11463 +extern void __shadow_user_pgds(pgd_t *dst, const pgd_t *src);
11464 +#else
11465 +static inline void __shadow_user_pgds(pgd_t *dst, const pgd_t *src) {}
11466 +#endif
11467
11468 #include <asm-generic/pgtable.h>
11469 #endif /* __ASSEMBLY__ */
11470 diff --git a/arch/x86/include/asm/pgtable_32.h b/arch/x86/include/asm/pgtable_32.h
11471 index 0c92113..34a77c6 100644
11472 --- a/arch/x86/include/asm/pgtable_32.h
11473 +++ b/arch/x86/include/asm/pgtable_32.h
11474 @@ -25,9 +25,6 @@
11475 struct mm_struct;
11476 struct vm_area_struct;
11477
11478 -extern pgd_t swapper_pg_dir[1024];
11479 -extern pgd_t initial_page_table[1024];
11480 -
11481 static inline void pgtable_cache_init(void) { }
11482 static inline void check_pgt_cache(void) { }
11483 void paging_init(void);
11484 @@ -48,6 +45,12 @@ extern void set_pmd_pfn(unsigned long, unsigned long, pgprot_t);
11485 # include <asm/pgtable-2level.h>
11486 #endif
11487
11488 +extern pgd_t swapper_pg_dir[PTRS_PER_PGD];
11489 +extern pgd_t initial_page_table[PTRS_PER_PGD];
11490 +#ifdef CONFIG_X86_PAE
11491 +extern pmd_t swapper_pm_dir[PTRS_PER_PGD][PTRS_PER_PMD];
11492 +#endif
11493 +
11494 #if defined(CONFIG_HIGHPTE)
11495 #define pte_offset_map(dir, address) \
11496 ((pte_t *)kmap_atomic(pmd_page(*(dir))) + \
11497 @@ -62,7 +65,9 @@ extern void set_pmd_pfn(unsigned long, unsigned long, pgprot_t);
11498 /* Clear a kernel PTE and flush it from the TLB */
11499 #define kpte_clear_flush(ptep, vaddr) \
11500 do { \
11501 + pax_open_kernel(); \
11502 pte_clear(&init_mm, (vaddr), (ptep)); \
11503 + pax_close_kernel(); \
11504 __flush_tlb_one((vaddr)); \
11505 } while (0)
11506
11507 @@ -74,6 +79,9 @@ do { \
11508
11509 #endif /* !__ASSEMBLY__ */
11510
11511 +#define HAVE_ARCH_UNMAPPED_AREA
11512 +#define HAVE_ARCH_UNMAPPED_AREA_TOPDOWN
11513 +
11514 /*
11515 * kern_addr_valid() is (1) for FLATMEM and (0) for
11516 * SPARSEMEM and DISCONTIGMEM
11517 diff --git a/arch/x86/include/asm/pgtable_32_types.h b/arch/x86/include/asm/pgtable_32_types.h
11518 index ed5903b..c7fe163 100644
11519 --- a/arch/x86/include/asm/pgtable_32_types.h
11520 +++ b/arch/x86/include/asm/pgtable_32_types.h
11521 @@ -8,7 +8,7 @@
11522 */
11523 #ifdef CONFIG_X86_PAE
11524 # include <asm/pgtable-3level_types.h>
11525 -# define PMD_SIZE (1UL << PMD_SHIFT)
11526 +# define PMD_SIZE (_AC(1, UL) << PMD_SHIFT)
11527 # define PMD_MASK (~(PMD_SIZE - 1))
11528 #else
11529 # include <asm/pgtable-2level_types.h>
11530 @@ -46,6 +46,19 @@ extern bool __vmalloc_start_set; /* set once high_memory is set */
11531 # define VMALLOC_END (FIXADDR_START - 2 * PAGE_SIZE)
11532 #endif
11533
11534 +#ifdef CONFIG_PAX_KERNEXEC
11535 +#ifndef __ASSEMBLY__
11536 +extern unsigned char MODULES_EXEC_VADDR[];
11537 +extern unsigned char MODULES_EXEC_END[];
11538 +#endif
11539 +#include <asm/boot.h>
11540 +#define ktla_ktva(addr) (addr + LOAD_PHYSICAL_ADDR + PAGE_OFFSET)
11541 +#define ktva_ktla(addr) (addr - LOAD_PHYSICAL_ADDR - PAGE_OFFSET)
11542 +#else
11543 +#define ktla_ktva(addr) (addr)
11544 +#define ktva_ktla(addr) (addr)
11545 +#endif
11546 +
11547 #define MODULES_VADDR VMALLOC_START
11548 #define MODULES_END VMALLOC_END
11549 #define MODULES_LEN (MODULES_VADDR - MODULES_END)
11550 diff --git a/arch/x86/include/asm/pgtable_64.h b/arch/x86/include/asm/pgtable_64.h
11551 index 975f709..9f779c9 100644
11552 --- a/arch/x86/include/asm/pgtable_64.h
11553 +++ b/arch/x86/include/asm/pgtable_64.h
11554 @@ -16,10 +16,14 @@
11555
11556 extern pud_t level3_kernel_pgt[512];
11557 extern pud_t level3_ident_pgt[512];
11558 +extern pud_t level3_vmalloc_start_pgt[512];
11559 +extern pud_t level3_vmalloc_end_pgt[512];
11560 +extern pud_t level3_vmemmap_pgt[512];
11561 +extern pud_t level2_vmemmap_pgt[512];
11562 extern pmd_t level2_kernel_pgt[512];
11563 extern pmd_t level2_fixmap_pgt[512];
11564 -extern pmd_t level2_ident_pgt[512];
11565 -extern pgd_t init_level4_pgt[];
11566 +extern pmd_t level2_ident_pgt[512*2];
11567 +extern pgd_t init_level4_pgt[512];
11568
11569 #define swapper_pg_dir init_level4_pgt
11570
11571 @@ -61,7 +65,9 @@ static inline void native_set_pte_atomic(pte_t *ptep, pte_t pte)
11572
11573 static inline void native_set_pmd(pmd_t *pmdp, pmd_t pmd)
11574 {
11575 + pax_open_kernel();
11576 *pmdp = pmd;
11577 + pax_close_kernel();
11578 }
11579
11580 static inline void native_pmd_clear(pmd_t *pmd)
11581 @@ -97,7 +103,9 @@ static inline pmd_t native_pmdp_get_and_clear(pmd_t *xp)
11582
11583 static inline void native_set_pud(pud_t *pudp, pud_t pud)
11584 {
11585 + pax_open_kernel();
11586 *pudp = pud;
11587 + pax_close_kernel();
11588 }
11589
11590 static inline void native_pud_clear(pud_t *pud)
11591 @@ -107,6 +115,13 @@ static inline void native_pud_clear(pud_t *pud)
11592
11593 static inline void native_set_pgd(pgd_t *pgdp, pgd_t pgd)
11594 {
11595 + pax_open_kernel();
11596 + *pgdp = pgd;
11597 + pax_close_kernel();
11598 +}
11599 +
11600 +static inline void native_set_pgd_batched(pgd_t *pgdp, pgd_t pgd)
11601 +{
11602 *pgdp = pgd;
11603 }
11604
11605 diff --git a/arch/x86/include/asm/pgtable_64_types.h b/arch/x86/include/asm/pgtable_64_types.h
11606 index 766ea16..5b96cb3 100644
11607 --- a/arch/x86/include/asm/pgtable_64_types.h
11608 +++ b/arch/x86/include/asm/pgtable_64_types.h
11609 @@ -59,5 +59,10 @@ typedef struct { pteval_t pte; } pte_t;
11610 #define MODULES_VADDR _AC(0xffffffffa0000000, UL)
11611 #define MODULES_END _AC(0xffffffffff000000, UL)
11612 #define MODULES_LEN (MODULES_END - MODULES_VADDR)
11613 +#define MODULES_EXEC_VADDR MODULES_VADDR
11614 +#define MODULES_EXEC_END MODULES_END
11615 +
11616 +#define ktla_ktva(addr) (addr)
11617 +#define ktva_ktla(addr) (addr)
11618
11619 #endif /* _ASM_X86_PGTABLE_64_DEFS_H */
11620 diff --git a/arch/x86/include/asm/pgtable_types.h b/arch/x86/include/asm/pgtable_types.h
11621 index 013286a..8b42f4f 100644
11622 --- a/arch/x86/include/asm/pgtable_types.h
11623 +++ b/arch/x86/include/asm/pgtable_types.h
11624 @@ -16,13 +16,12 @@
11625 #define _PAGE_BIT_PSE 7 /* 4 MB (or 2MB) page */
11626 #define _PAGE_BIT_PAT 7 /* on 4KB pages */
11627 #define _PAGE_BIT_GLOBAL 8 /* Global TLB entry PPro+ */
11628 -#define _PAGE_BIT_UNUSED1 9 /* available for programmer */
11629 +#define _PAGE_BIT_SPECIAL 9 /* special mappings, no associated struct page */
11630 #define _PAGE_BIT_IOMAP 10 /* flag used to indicate IO mapping */
11631 #define _PAGE_BIT_HIDDEN 11 /* hidden by kmemcheck */
11632 #define _PAGE_BIT_PAT_LARGE 12 /* On 2MB or 1GB pages */
11633 -#define _PAGE_BIT_SPECIAL _PAGE_BIT_UNUSED1
11634 -#define _PAGE_BIT_CPA_TEST _PAGE_BIT_UNUSED1
11635 -#define _PAGE_BIT_SPLITTING _PAGE_BIT_UNUSED1 /* only valid on a PSE pmd */
11636 +#define _PAGE_BIT_CPA_TEST _PAGE_BIT_SPECIAL
11637 +#define _PAGE_BIT_SPLITTING _PAGE_BIT_SPECIAL /* only valid on a PSE pmd */
11638 #define _PAGE_BIT_NX 63 /* No execute: only valid after cpuid check */
11639
11640 /* If _PAGE_BIT_PRESENT is clear, we use these: */
11641 @@ -40,7 +39,6 @@
11642 #define _PAGE_DIRTY (_AT(pteval_t, 1) << _PAGE_BIT_DIRTY)
11643 #define _PAGE_PSE (_AT(pteval_t, 1) << _PAGE_BIT_PSE)
11644 #define _PAGE_GLOBAL (_AT(pteval_t, 1) << _PAGE_BIT_GLOBAL)
11645 -#define _PAGE_UNUSED1 (_AT(pteval_t, 1) << _PAGE_BIT_UNUSED1)
11646 #define _PAGE_IOMAP (_AT(pteval_t, 1) << _PAGE_BIT_IOMAP)
11647 #define _PAGE_PAT (_AT(pteval_t, 1) << _PAGE_BIT_PAT)
11648 #define _PAGE_PAT_LARGE (_AT(pteval_t, 1) << _PAGE_BIT_PAT_LARGE)
11649 @@ -57,8 +55,10 @@
11650
11651 #if defined(CONFIG_X86_64) || defined(CONFIG_X86_PAE)
11652 #define _PAGE_NX (_AT(pteval_t, 1) << _PAGE_BIT_NX)
11653 -#else
11654 +#elif defined(CONFIG_KMEMCHECK)
11655 #define _PAGE_NX (_AT(pteval_t, 0))
11656 +#else
11657 +#define _PAGE_NX (_AT(pteval_t, 1) << _PAGE_BIT_HIDDEN)
11658 #endif
11659
11660 #define _PAGE_FILE (_AT(pteval_t, 1) << _PAGE_BIT_FILE)
11661 @@ -96,6 +96,9 @@
11662 #define PAGE_READONLY_EXEC __pgprot(_PAGE_PRESENT | _PAGE_USER | \
11663 _PAGE_ACCESSED)
11664
11665 +#define PAGE_READONLY_NOEXEC PAGE_READONLY
11666 +#define PAGE_SHARED_NOEXEC PAGE_SHARED
11667 +
11668 #define __PAGE_KERNEL_EXEC \
11669 (_PAGE_PRESENT | _PAGE_RW | _PAGE_DIRTY | _PAGE_ACCESSED | _PAGE_GLOBAL)
11670 #define __PAGE_KERNEL (__PAGE_KERNEL_EXEC | _PAGE_NX)
11671 @@ -106,7 +109,7 @@
11672 #define __PAGE_KERNEL_WC (__PAGE_KERNEL | _PAGE_CACHE_WC)
11673 #define __PAGE_KERNEL_NOCACHE (__PAGE_KERNEL | _PAGE_PCD | _PAGE_PWT)
11674 #define __PAGE_KERNEL_UC_MINUS (__PAGE_KERNEL | _PAGE_PCD)
11675 -#define __PAGE_KERNEL_VSYSCALL (__PAGE_KERNEL_RX | _PAGE_USER)
11676 +#define __PAGE_KERNEL_VSYSCALL (__PAGE_KERNEL_RO | _PAGE_USER)
11677 #define __PAGE_KERNEL_VVAR (__PAGE_KERNEL_RO | _PAGE_USER)
11678 #define __PAGE_KERNEL_VVAR_NOCACHE (__PAGE_KERNEL_VVAR | _PAGE_PCD | _PAGE_PWT)
11679 #define __PAGE_KERNEL_LARGE (__PAGE_KERNEL | _PAGE_PSE)
11680 @@ -168,8 +171,8 @@
11681 * bits are combined, this will alow user to access the high address mapped
11682 * VDSO in the presence of CONFIG_COMPAT_VDSO
11683 */
11684 -#define PTE_IDENT_ATTR 0x003 /* PRESENT+RW */
11685 -#define PDE_IDENT_ATTR 0x067 /* PRESENT+RW+USER+DIRTY+ACCESSED */
11686 +#define PTE_IDENT_ATTR 0x063 /* PRESENT+RW+DIRTY+ACCESSED */
11687 +#define PDE_IDENT_ATTR 0x063 /* PRESENT+RW+DIRTY+ACCESSED */
11688 #define PGD_IDENT_ATTR 0x001 /* PRESENT (no other attributes) */
11689 #endif
11690
11691 @@ -207,7 +210,17 @@ static inline pgdval_t pgd_flags(pgd_t pgd)
11692 {
11693 return native_pgd_val(pgd) & PTE_FLAGS_MASK;
11694 }
11695 +#endif
11696
11697 +#if PAGETABLE_LEVELS == 3
11698 +#include <asm-generic/pgtable-nopud.h>
11699 +#endif
11700 +
11701 +#if PAGETABLE_LEVELS == 2
11702 +#include <asm-generic/pgtable-nopmd.h>
11703 +#endif
11704 +
11705 +#ifndef __ASSEMBLY__
11706 #if PAGETABLE_LEVELS > 3
11707 typedef struct { pudval_t pud; } pud_t;
11708
11709 @@ -221,8 +234,6 @@ static inline pudval_t native_pud_val(pud_t pud)
11710 return pud.pud;
11711 }
11712 #else
11713 -#include <asm-generic/pgtable-nopud.h>
11714 -
11715 static inline pudval_t native_pud_val(pud_t pud)
11716 {
11717 return native_pgd_val(pud.pgd);
11718 @@ -242,8 +253,6 @@ static inline pmdval_t native_pmd_val(pmd_t pmd)
11719 return pmd.pmd;
11720 }
11721 #else
11722 -#include <asm-generic/pgtable-nopmd.h>
11723 -
11724 static inline pmdval_t native_pmd_val(pmd_t pmd)
11725 {
11726 return native_pgd_val(pmd.pud.pgd);
11727 @@ -283,7 +292,6 @@ typedef struct page *pgtable_t;
11728
11729 extern pteval_t __supported_pte_mask;
11730 extern void set_nx(void);
11731 -extern int nx_enabled;
11732
11733 #define pgprot_writecombine pgprot_writecombine
11734 extern pgprot_t pgprot_writecombine(pgprot_t prot);
11735 diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
11736 index 39bc577..538233f 100644
11737 --- a/arch/x86/include/asm/processor.h
11738 +++ b/arch/x86/include/asm/processor.h
11739 @@ -276,7 +276,7 @@ struct tss_struct {
11740
11741 } ____cacheline_aligned;
11742
11743 -DECLARE_PER_CPU_SHARED_ALIGNED(struct tss_struct, init_tss);
11744 +extern struct tss_struct init_tss[NR_CPUS];
11745
11746 /*
11747 * Save the original ist values for checking stack pointers during debugging
11748 @@ -809,11 +809,18 @@ static inline void spin_lock_prefetch(const void *x)
11749 */
11750 #define TASK_SIZE PAGE_OFFSET
11751 #define TASK_SIZE_MAX TASK_SIZE
11752 +
11753 +#ifdef CONFIG_PAX_SEGMEXEC
11754 +#define SEGMEXEC_TASK_SIZE (TASK_SIZE / 2)
11755 +#define STACK_TOP ((current->mm->pax_flags & MF_PAX_SEGMEXEC)?SEGMEXEC_TASK_SIZE:TASK_SIZE)
11756 +#else
11757 #define STACK_TOP TASK_SIZE
11758 -#define STACK_TOP_MAX STACK_TOP
11759 +#endif
11760 +
11761 +#define STACK_TOP_MAX TASK_SIZE
11762
11763 #define INIT_THREAD { \
11764 - .sp0 = sizeof(init_stack) + (long)&init_stack, \
11765 + .sp0 = sizeof(init_stack) + (long)&init_stack - 8, \
11766 .vm86_info = NULL, \
11767 .sysenter_cs = __KERNEL_CS, \
11768 .io_bitmap_ptr = NULL, \
11769 @@ -827,7 +834,7 @@ static inline void spin_lock_prefetch(const void *x)
11770 */
11771 #define INIT_TSS { \
11772 .x86_tss = { \
11773 - .sp0 = sizeof(init_stack) + (long)&init_stack, \
11774 + .sp0 = sizeof(init_stack) + (long)&init_stack - 8, \
11775 .ss0 = __KERNEL_DS, \
11776 .ss1 = __KERNEL_CS, \
11777 .io_bitmap_base = INVALID_IO_BITMAP_OFFSET, \
11778 @@ -838,11 +845,7 @@ static inline void spin_lock_prefetch(const void *x)
11779 extern unsigned long thread_saved_pc(struct task_struct *tsk);
11780
11781 #define THREAD_SIZE_LONGS (THREAD_SIZE/sizeof(unsigned long))
11782 -#define KSTK_TOP(info) \
11783 -({ \
11784 - unsigned long *__ptr = (unsigned long *)(info); \
11785 - (unsigned long)(&__ptr[THREAD_SIZE_LONGS]); \
11786 -})
11787 +#define KSTK_TOP(info) ((container_of(info, struct task_struct, tinfo))->thread.sp0)
11788
11789 /*
11790 * The below -8 is to reserve 8 bytes on top of the ring0 stack.
11791 @@ -857,7 +860,7 @@ extern unsigned long thread_saved_pc(struct task_struct *tsk);
11792 #define task_pt_regs(task) \
11793 ({ \
11794 struct pt_regs *__regs__; \
11795 - __regs__ = (struct pt_regs *)(KSTK_TOP(task_stack_page(task))-8); \
11796 + __regs__ = (struct pt_regs *)((task)->thread.sp0); \
11797 __regs__ - 1; \
11798 })
11799
11800 @@ -867,13 +870,13 @@ extern unsigned long thread_saved_pc(struct task_struct *tsk);
11801 /*
11802 * User space process size. 47bits minus one guard page.
11803 */
11804 -#define TASK_SIZE_MAX ((1UL << 47) - PAGE_SIZE)
11805 +#define TASK_SIZE_MAX ((1UL << TASK_SIZE_MAX_SHIFT) - PAGE_SIZE)
11806
11807 /* This decides where the kernel will search for a free chunk of vm
11808 * space during mmap's.
11809 */
11810 #define IA32_PAGE_OFFSET ((current->personality & ADDR_LIMIT_3GB) ? \
11811 - 0xc0000000 : 0xFFFFe000)
11812 + 0xc0000000 : 0xFFFFf000)
11813
11814 #define TASK_SIZE (test_thread_flag(TIF_ADDR32) ? \
11815 IA32_PAGE_OFFSET : TASK_SIZE_MAX)
11816 @@ -884,11 +887,11 @@ extern unsigned long thread_saved_pc(struct task_struct *tsk);
11817 #define STACK_TOP_MAX TASK_SIZE_MAX
11818
11819 #define INIT_THREAD { \
11820 - .sp0 = (unsigned long)&init_stack + sizeof(init_stack) \
11821 + .sp0 = (unsigned long)&init_stack + sizeof(init_stack) - 16 \
11822 }
11823
11824 #define INIT_TSS { \
11825 - .x86_tss.sp0 = (unsigned long)&init_stack + sizeof(init_stack) \
11826 + .x86_tss.sp0 = (unsigned long)&init_stack + sizeof(init_stack) - 16 \
11827 }
11828
11829 /*
11830 @@ -916,6 +919,10 @@ extern void start_thread(struct pt_regs *regs, unsigned long new_ip,
11831 */
11832 #define TASK_UNMAPPED_BASE (PAGE_ALIGN(TASK_SIZE / 3))
11833
11834 +#ifdef CONFIG_PAX_SEGMEXEC
11835 +#define SEGMEXEC_TASK_UNMAPPED_BASE (PAGE_ALIGN(SEGMEXEC_TASK_SIZE / 3))
11836 +#endif
11837 +
11838 #define KSTK_EIP(task) (task_pt_regs(task)->ip)
11839
11840 /* Get/set a process' ability to use the timestamp counter instruction */
11841 @@ -976,12 +983,12 @@ extern bool cpu_has_amd_erratum(const int *);
11842 #define cpu_has_amd_erratum(x) (false)
11843 #endif /* CONFIG_CPU_SUP_AMD */
11844
11845 -extern unsigned long arch_align_stack(unsigned long sp);
11846 +#define arch_align_stack(x) ((x) & ~0xfUL)
11847 extern void free_init_pages(char *what, unsigned long begin, unsigned long end);
11848
11849 void default_idle(void);
11850 bool set_pm_idle_to_default(void);
11851
11852 -void stop_this_cpu(void *dummy);
11853 +void stop_this_cpu(void *dummy) __noreturn;
11854
11855 #endif /* _ASM_X86_PROCESSOR_H */
11856 diff --git a/arch/x86/include/asm/ptrace.h b/arch/x86/include/asm/ptrace.h
11857 index dcfde52..dbfea06 100644
11858 --- a/arch/x86/include/asm/ptrace.h
11859 +++ b/arch/x86/include/asm/ptrace.h
11860 @@ -155,28 +155,29 @@ static inline unsigned long regs_return_value(struct pt_regs *regs)
11861 }
11862
11863 /*
11864 - * user_mode_vm(regs) determines whether a register set came from user mode.
11865 + * user_mode(regs) determines whether a register set came from user mode.
11866 * This is true if V8086 mode was enabled OR if the register set was from
11867 * protected mode with RPL-3 CS value. This tricky test checks that with
11868 * one comparison. Many places in the kernel can bypass this full check
11869 - * if they have already ruled out V8086 mode, so user_mode(regs) can be used.
11870 + * if they have already ruled out V8086 mode, so user_mode_novm(regs) can
11871 + * be used.
11872 */
11873 -static inline int user_mode(struct pt_regs *regs)
11874 +static inline int user_mode_novm(struct pt_regs *regs)
11875 {
11876 #ifdef CONFIG_X86_32
11877 return (regs->cs & SEGMENT_RPL_MASK) == USER_RPL;
11878 #else
11879 - return !!(regs->cs & 3);
11880 + return !!(regs->cs & SEGMENT_RPL_MASK);
11881 #endif
11882 }
11883
11884 -static inline int user_mode_vm(struct pt_regs *regs)
11885 +static inline int user_mode(struct pt_regs *regs)
11886 {
11887 #ifdef CONFIG_X86_32
11888 return ((regs->cs & SEGMENT_RPL_MASK) | (regs->flags & X86_VM_MASK)) >=
11889 USER_RPL;
11890 #else
11891 - return user_mode(regs);
11892 + return user_mode_novm(regs);
11893 #endif
11894 }
11895
11896 @@ -192,15 +193,16 @@ static inline int v8086_mode(struct pt_regs *regs)
11897 #ifdef CONFIG_X86_64
11898 static inline bool user_64bit_mode(struct pt_regs *regs)
11899 {
11900 + unsigned long cs = regs->cs & 0xffff;
11901 #ifndef CONFIG_PARAVIRT
11902 /*
11903 * On non-paravirt systems, this is the only long mode CPL 3
11904 * selector. We do not allow long mode selectors in the LDT.
11905 */
11906 - return regs->cs == __USER_CS;
11907 + return cs == __USER_CS;
11908 #else
11909 /* Headers are too twisted for this to go in paravirt.h. */
11910 - return regs->cs == __USER_CS || regs->cs == pv_info.extra_user_64bit_cs;
11911 + return cs == __USER_CS || cs == pv_info.extra_user_64bit_cs;
11912 #endif
11913 }
11914 #endif
11915 diff --git a/arch/x86/include/asm/realmode.h b/arch/x86/include/asm/realmode.h
11916 index fce3f4a..3f69f2a 100644
11917 --- a/arch/x86/include/asm/realmode.h
11918 +++ b/arch/x86/include/asm/realmode.h
11919 @@ -30,7 +30,7 @@ struct real_mode_header {
11920 struct trampoline_header {
11921 #ifdef CONFIG_X86_32
11922 u32 start;
11923 - u16 gdt_pad;
11924 + u16 boot_cs;
11925 u16 gdt_limit;
11926 u32 gdt_base;
11927 #else
11928 diff --git a/arch/x86/include/asm/reboot.h b/arch/x86/include/asm/reboot.h
11929 index 92f29706..a79cbbb 100644
11930 --- a/arch/x86/include/asm/reboot.h
11931 +++ b/arch/x86/include/asm/reboot.h
11932 @@ -6,19 +6,19 @@
11933 struct pt_regs;
11934
11935 struct machine_ops {
11936 - void (*restart)(char *cmd);
11937 - void (*halt)(void);
11938 - void (*power_off)(void);
11939 + void (* __noreturn restart)(char *cmd);
11940 + void (* __noreturn halt)(void);
11941 + void (* __noreturn power_off)(void);
11942 void (*shutdown)(void);
11943 void (*crash_shutdown)(struct pt_regs *);
11944 - void (*emergency_restart)(void);
11945 -};
11946 + void (* __noreturn emergency_restart)(void);
11947 +} __no_const;
11948
11949 extern struct machine_ops machine_ops;
11950
11951 void native_machine_crash_shutdown(struct pt_regs *regs);
11952 void native_machine_shutdown(void);
11953 -void machine_real_restart(unsigned int type);
11954 +void machine_real_restart(unsigned int type) __noreturn;
11955 /* These must match dispatch_table in reboot_32.S */
11956 #define MRR_BIOS 0
11957 #define MRR_APM 1
11958 diff --git a/arch/x86/include/asm/rwsem.h b/arch/x86/include/asm/rwsem.h
11959 index 2dbe4a7..ce1db00 100644
11960 --- a/arch/x86/include/asm/rwsem.h
11961 +++ b/arch/x86/include/asm/rwsem.h
11962 @@ -64,6 +64,14 @@ static inline void __down_read(struct rw_semaphore *sem)
11963 {
11964 asm volatile("# beginning down_read\n\t"
11965 LOCK_PREFIX _ASM_INC "(%1)\n\t"
11966 +
11967 +#ifdef CONFIG_PAX_REFCOUNT
11968 + "jno 0f\n"
11969 + LOCK_PREFIX _ASM_DEC "(%1)\n"
11970 + "int $4\n0:\n"
11971 + _ASM_EXTABLE(0b, 0b)
11972 +#endif
11973 +
11974 /* adds 0x00000001 */
11975 " jns 1f\n"
11976 " call call_rwsem_down_read_failed\n"
11977 @@ -85,6 +93,14 @@ static inline int __down_read_trylock(struct rw_semaphore *sem)
11978 "1:\n\t"
11979 " mov %1,%2\n\t"
11980 " add %3,%2\n\t"
11981 +
11982 +#ifdef CONFIG_PAX_REFCOUNT
11983 + "jno 0f\n"
11984 + "sub %3,%2\n"
11985 + "int $4\n0:\n"
11986 + _ASM_EXTABLE(0b, 0b)
11987 +#endif
11988 +
11989 " jle 2f\n\t"
11990 LOCK_PREFIX " cmpxchg %2,%0\n\t"
11991 " jnz 1b\n\t"
11992 @@ -104,6 +120,14 @@ static inline void __down_write_nested(struct rw_semaphore *sem, int subclass)
11993 long tmp;
11994 asm volatile("# beginning down_write\n\t"
11995 LOCK_PREFIX " xadd %1,(%2)\n\t"
11996 +
11997 +#ifdef CONFIG_PAX_REFCOUNT
11998 + "jno 0f\n"
11999 + "mov %1,(%2)\n"
12000 + "int $4\n0:\n"
12001 + _ASM_EXTABLE(0b, 0b)
12002 +#endif
12003 +
12004 /* adds 0xffff0001, returns the old value */
12005 " test %1,%1\n\t"
12006 /* was the count 0 before? */
12007 @@ -141,6 +165,14 @@ static inline void __up_read(struct rw_semaphore *sem)
12008 long tmp;
12009 asm volatile("# beginning __up_read\n\t"
12010 LOCK_PREFIX " xadd %1,(%2)\n\t"
12011 +
12012 +#ifdef CONFIG_PAX_REFCOUNT
12013 + "jno 0f\n"
12014 + "mov %1,(%2)\n"
12015 + "int $4\n0:\n"
12016 + _ASM_EXTABLE(0b, 0b)
12017 +#endif
12018 +
12019 /* subtracts 1, returns the old value */
12020 " jns 1f\n\t"
12021 " call call_rwsem_wake\n" /* expects old value in %edx */
12022 @@ -159,6 +191,14 @@ static inline void __up_write(struct rw_semaphore *sem)
12023 long tmp;
12024 asm volatile("# beginning __up_write\n\t"
12025 LOCK_PREFIX " xadd %1,(%2)\n\t"
12026 +
12027 +#ifdef CONFIG_PAX_REFCOUNT
12028 + "jno 0f\n"
12029 + "mov %1,(%2)\n"
12030 + "int $4\n0:\n"
12031 + _ASM_EXTABLE(0b, 0b)
12032 +#endif
12033 +
12034 /* subtracts 0xffff0001, returns the old value */
12035 " jns 1f\n\t"
12036 " call call_rwsem_wake\n" /* expects old value in %edx */
12037 @@ -176,6 +216,14 @@ static inline void __downgrade_write(struct rw_semaphore *sem)
12038 {
12039 asm volatile("# beginning __downgrade_write\n\t"
12040 LOCK_PREFIX _ASM_ADD "%2,(%1)\n\t"
12041 +
12042 +#ifdef CONFIG_PAX_REFCOUNT
12043 + "jno 0f\n"
12044 + LOCK_PREFIX _ASM_SUB "%2,(%1)\n"
12045 + "int $4\n0:\n"
12046 + _ASM_EXTABLE(0b, 0b)
12047 +#endif
12048 +
12049 /*
12050 * transitions 0xZZZZ0001 -> 0xYYYY0001 (i386)
12051 * 0xZZZZZZZZ00000001 -> 0xYYYYYYYY00000001 (x86_64)
12052 @@ -194,7 +242,15 @@ static inline void __downgrade_write(struct rw_semaphore *sem)
12053 */
12054 static inline void rwsem_atomic_add(long delta, struct rw_semaphore *sem)
12055 {
12056 - asm volatile(LOCK_PREFIX _ASM_ADD "%1,%0"
12057 + asm volatile(LOCK_PREFIX _ASM_ADD "%1,%0\n"
12058 +
12059 +#ifdef CONFIG_PAX_REFCOUNT
12060 + "jno 0f\n"
12061 + LOCK_PREFIX _ASM_SUB "%1,%0\n"
12062 + "int $4\n0:\n"
12063 + _ASM_EXTABLE(0b, 0b)
12064 +#endif
12065 +
12066 : "+m" (sem->count)
12067 : "er" (delta));
12068 }
12069 @@ -204,7 +260,7 @@ static inline void rwsem_atomic_add(long delta, struct rw_semaphore *sem)
12070 */
12071 static inline long rwsem_atomic_update(long delta, struct rw_semaphore *sem)
12072 {
12073 - return delta + xadd(&sem->count, delta);
12074 + return delta + xadd_check_overflow(&sem->count, delta);
12075 }
12076
12077 #endif /* __KERNEL__ */
12078 diff --git a/arch/x86/include/asm/segment.h b/arch/x86/include/asm/segment.h
12079 index c48a950..c6d7468 100644
12080 --- a/arch/x86/include/asm/segment.h
12081 +++ b/arch/x86/include/asm/segment.h
12082 @@ -64,10 +64,15 @@
12083 * 26 - ESPFIX small SS
12084 * 27 - per-cpu [ offset to per-cpu data area ]
12085 * 28 - stack_canary-20 [ for stack protector ]
12086 - * 29 - unused
12087 - * 30 - unused
12088 + * 29 - PCI BIOS CS
12089 + * 30 - PCI BIOS DS
12090 * 31 - TSS for double fault handler
12091 */
12092 +#define GDT_ENTRY_KERNEXEC_EFI_CS (1)
12093 +#define GDT_ENTRY_KERNEXEC_EFI_DS (2)
12094 +#define __KERNEXEC_EFI_CS (GDT_ENTRY_KERNEXEC_EFI_CS*8)
12095 +#define __KERNEXEC_EFI_DS (GDT_ENTRY_KERNEXEC_EFI_DS*8)
12096 +
12097 #define GDT_ENTRY_TLS_MIN 6
12098 #define GDT_ENTRY_TLS_MAX (GDT_ENTRY_TLS_MIN + GDT_ENTRY_TLS_ENTRIES - 1)
12099
12100 @@ -79,6 +84,8 @@
12101
12102 #define GDT_ENTRY_KERNEL_CS (GDT_ENTRY_KERNEL_BASE+0)
12103
12104 +#define GDT_ENTRY_KERNEXEC_KERNEL_CS (4)
12105 +
12106 #define GDT_ENTRY_KERNEL_DS (GDT_ENTRY_KERNEL_BASE+1)
12107
12108 #define GDT_ENTRY_TSS (GDT_ENTRY_KERNEL_BASE+4)
12109 @@ -104,6 +111,12 @@
12110 #define __KERNEL_STACK_CANARY 0
12111 #endif
12112
12113 +#define GDT_ENTRY_PCIBIOS_CS (GDT_ENTRY_KERNEL_BASE+17)
12114 +#define __PCIBIOS_CS (GDT_ENTRY_PCIBIOS_CS * 8)
12115 +
12116 +#define GDT_ENTRY_PCIBIOS_DS (GDT_ENTRY_KERNEL_BASE+18)
12117 +#define __PCIBIOS_DS (GDT_ENTRY_PCIBIOS_DS * 8)
12118 +
12119 #define GDT_ENTRY_DOUBLEFAULT_TSS 31
12120
12121 /*
12122 @@ -141,7 +154,7 @@
12123 */
12124
12125 /* Matches PNP_CS32 and PNP_CS16 (they must be consecutive) */
12126 -#define SEGMENT_IS_PNP_CODE(x) (((x) & 0xf4) == GDT_ENTRY_PNPBIOS_BASE * 8)
12127 +#define SEGMENT_IS_PNP_CODE(x) (((x) & 0xFFFCU) == PNP_CS32 || ((x) & 0xFFFCU) == PNP_CS16)
12128
12129
12130 #else
12131 @@ -165,6 +178,8 @@
12132 #define __USER32_CS (GDT_ENTRY_DEFAULT_USER32_CS*8+3)
12133 #define __USER32_DS __USER_DS
12134
12135 +#define GDT_ENTRY_KERNEXEC_KERNEL_CS 7
12136 +
12137 #define GDT_ENTRY_TSS 8 /* needs two entries */
12138 #define GDT_ENTRY_LDT 10 /* needs two entries */
12139 #define GDT_ENTRY_TLS_MIN 12
12140 @@ -185,6 +200,7 @@
12141 #endif
12142
12143 #define __KERNEL_CS (GDT_ENTRY_KERNEL_CS*8)
12144 +#define __KERNEXEC_KERNEL_CS (GDT_ENTRY_KERNEXEC_KERNEL_CS*8)
12145 #define __KERNEL_DS (GDT_ENTRY_KERNEL_DS*8)
12146 #define __USER_DS (GDT_ENTRY_DEFAULT_USER_DS*8+3)
12147 #define __USER_CS (GDT_ENTRY_DEFAULT_USER_CS*8+3)
12148 @@ -265,7 +281,7 @@ static inline unsigned long get_limit(unsigned long segment)
12149 {
12150 unsigned long __limit;
12151 asm("lsll %1,%0" : "=r" (__limit) : "r" (segment));
12152 - return __limit + 1;
12153 + return __limit;
12154 }
12155
12156 #endif /* !__ASSEMBLY__ */
12157 diff --git a/arch/x86/include/asm/smp.h b/arch/x86/include/asm/smp.h
12158 index f483945..64a7851 100644
12159 --- a/arch/x86/include/asm/smp.h
12160 +++ b/arch/x86/include/asm/smp.h
12161 @@ -36,7 +36,7 @@ DECLARE_PER_CPU(cpumask_var_t, cpu_core_map);
12162 /* cpus sharing the last level cache: */
12163 DECLARE_PER_CPU(cpumask_var_t, cpu_llc_shared_map);
12164 DECLARE_PER_CPU(u16, cpu_llc_id);
12165 -DECLARE_PER_CPU(int, cpu_number);
12166 +DECLARE_PER_CPU(unsigned int, cpu_number);
12167
12168 static inline struct cpumask *cpu_sibling_mask(int cpu)
12169 {
12170 @@ -79,7 +79,7 @@ struct smp_ops {
12171
12172 void (*send_call_func_ipi)(const struct cpumask *mask);
12173 void (*send_call_func_single_ipi)(int cpu);
12174 -};
12175 +} __no_const;
12176
12177 /* Globals due to paravirt */
12178 extern void set_cpu_sibling_map(int cpu);
12179 @@ -195,14 +195,8 @@ extern unsigned disabled_cpus __cpuinitdata;
12180 extern int safe_smp_processor_id(void);
12181
12182 #elif defined(CONFIG_X86_64_SMP)
12183 -#define raw_smp_processor_id() (this_cpu_read(cpu_number))
12184 -
12185 -#define stack_smp_processor_id() \
12186 -({ \
12187 - struct thread_info *ti; \
12188 - __asm__("andq %%rsp,%0; ":"=r" (ti) : "0" (CURRENT_MASK)); \
12189 - ti->cpu; \
12190 -})
12191 +#define raw_smp_processor_id() (this_cpu_read(cpu_number))
12192 +#define stack_smp_processor_id() raw_smp_processor_id()
12193 #define safe_smp_processor_id() smp_processor_id()
12194
12195 #endif
12196 diff --git a/arch/x86/include/asm/spinlock.h b/arch/x86/include/asm/spinlock.h
12197 index b315a33..8849ab0 100644
12198 --- a/arch/x86/include/asm/spinlock.h
12199 +++ b/arch/x86/include/asm/spinlock.h
12200 @@ -173,6 +173,14 @@ static inline int arch_write_can_lock(arch_rwlock_t *lock)
12201 static inline void arch_read_lock(arch_rwlock_t *rw)
12202 {
12203 asm volatile(LOCK_PREFIX READ_LOCK_SIZE(dec) " (%0)\n\t"
12204 +
12205 +#ifdef CONFIG_PAX_REFCOUNT
12206 + "jno 0f\n"
12207 + LOCK_PREFIX READ_LOCK_SIZE(inc) " (%0)\n"
12208 + "int $4\n0:\n"
12209 + _ASM_EXTABLE(0b, 0b)
12210 +#endif
12211 +
12212 "jns 1f\n"
12213 "call __read_lock_failed\n\t"
12214 "1:\n"
12215 @@ -182,6 +190,14 @@ static inline void arch_read_lock(arch_rwlock_t *rw)
12216 static inline void arch_write_lock(arch_rwlock_t *rw)
12217 {
12218 asm volatile(LOCK_PREFIX WRITE_LOCK_SUB(%1) "(%0)\n\t"
12219 +
12220 +#ifdef CONFIG_PAX_REFCOUNT
12221 + "jno 0f\n"
12222 + LOCK_PREFIX WRITE_LOCK_ADD(%1) "(%0)\n"
12223 + "int $4\n0:\n"
12224 + _ASM_EXTABLE(0b, 0b)
12225 +#endif
12226 +
12227 "jz 1f\n"
12228 "call __write_lock_failed\n\t"
12229 "1:\n"
12230 @@ -211,13 +227,29 @@ static inline int arch_write_trylock(arch_rwlock_t *lock)
12231
12232 static inline void arch_read_unlock(arch_rwlock_t *rw)
12233 {
12234 - asm volatile(LOCK_PREFIX READ_LOCK_SIZE(inc) " %0"
12235 + asm volatile(LOCK_PREFIX READ_LOCK_SIZE(inc) " %0\n"
12236 +
12237 +#ifdef CONFIG_PAX_REFCOUNT
12238 + "jno 0f\n"
12239 + LOCK_PREFIX READ_LOCK_SIZE(dec) " %0\n"
12240 + "int $4\n0:\n"
12241 + _ASM_EXTABLE(0b, 0b)
12242 +#endif
12243 +
12244 :"+m" (rw->lock) : : "memory");
12245 }
12246
12247 static inline void arch_write_unlock(arch_rwlock_t *rw)
12248 {
12249 - asm volatile(LOCK_PREFIX WRITE_LOCK_ADD(%1) "%0"
12250 + asm volatile(LOCK_PREFIX WRITE_LOCK_ADD(%1) "%0\n"
12251 +
12252 +#ifdef CONFIG_PAX_REFCOUNT
12253 + "jno 0f\n"
12254 + LOCK_PREFIX WRITE_LOCK_SUB(%1) "%0\n"
12255 + "int $4\n0:\n"
12256 + _ASM_EXTABLE(0b, 0b)
12257 +#endif
12258 +
12259 : "+m" (rw->write) : "i" (RW_LOCK_BIAS) : "memory");
12260 }
12261
12262 diff --git a/arch/x86/include/asm/stackprotector.h b/arch/x86/include/asm/stackprotector.h
12263 index 6a99859..03cb807 100644
12264 --- a/arch/x86/include/asm/stackprotector.h
12265 +++ b/arch/x86/include/asm/stackprotector.h
12266 @@ -47,7 +47,7 @@
12267 * head_32 for boot CPU and setup_per_cpu_areas() for others.
12268 */
12269 #define GDT_STACK_CANARY_INIT \
12270 - [GDT_ENTRY_STACK_CANARY] = GDT_ENTRY_INIT(0x4090, 0, 0x18),
12271 + [GDT_ENTRY_STACK_CANARY] = GDT_ENTRY_INIT(0x4090, 0, 0x17),
12272
12273 /*
12274 * Initialize the stackprotector canary value.
12275 @@ -112,7 +112,7 @@ static inline void setup_stack_canary_segment(int cpu)
12276
12277 static inline void load_stack_canary_segment(void)
12278 {
12279 -#ifdef CONFIG_X86_32
12280 +#if defined(CONFIG_X86_32) && !defined(CONFIG_PAX_MEMORY_UDEREF)
12281 asm volatile ("mov %0, %%gs" : : "r" (0));
12282 #endif
12283 }
12284 diff --git a/arch/x86/include/asm/stacktrace.h b/arch/x86/include/asm/stacktrace.h
12285 index 70bbe39..4ae2bd4 100644
12286 --- a/arch/x86/include/asm/stacktrace.h
12287 +++ b/arch/x86/include/asm/stacktrace.h
12288 @@ -11,28 +11,20 @@
12289
12290 extern int kstack_depth_to_print;
12291
12292 -struct thread_info;
12293 +struct task_struct;
12294 struct stacktrace_ops;
12295
12296 -typedef unsigned long (*walk_stack_t)(struct thread_info *tinfo,
12297 - unsigned long *stack,
12298 - unsigned long bp,
12299 - const struct stacktrace_ops *ops,
12300 - void *data,
12301 - unsigned long *end,
12302 - int *graph);
12303 +typedef unsigned long walk_stack_t(struct task_struct *task,
12304 + void *stack_start,
12305 + unsigned long *stack,
12306 + unsigned long bp,
12307 + const struct stacktrace_ops *ops,
12308 + void *data,
12309 + unsigned long *end,
12310 + int *graph);
12311
12312 -extern unsigned long
12313 -print_context_stack(struct thread_info *tinfo,
12314 - unsigned long *stack, unsigned long bp,
12315 - const struct stacktrace_ops *ops, void *data,
12316 - unsigned long *end, int *graph);
12317 -
12318 -extern unsigned long
12319 -print_context_stack_bp(struct thread_info *tinfo,
12320 - unsigned long *stack, unsigned long bp,
12321 - const struct stacktrace_ops *ops, void *data,
12322 - unsigned long *end, int *graph);
12323 +extern walk_stack_t print_context_stack;
12324 +extern walk_stack_t print_context_stack_bp;
12325
12326 /* Generic stack tracer with callbacks */
12327
12328 @@ -40,7 +32,7 @@ struct stacktrace_ops {
12329 void (*address)(void *data, unsigned long address, int reliable);
12330 /* On negative return stop dumping */
12331 int (*stack)(void *data, char *name);
12332 - walk_stack_t walk_stack;
12333 + walk_stack_t *walk_stack;
12334 };
12335
12336 void dump_trace(struct task_struct *tsk, struct pt_regs *regs,
12337 diff --git a/arch/x86/include/asm/switch_to.h b/arch/x86/include/asm/switch_to.h
12338 index 4ec45b3..a4f0a8a 100644
12339 --- a/arch/x86/include/asm/switch_to.h
12340 +++ b/arch/x86/include/asm/switch_to.h
12341 @@ -108,7 +108,7 @@ do { \
12342 "call __switch_to\n\t" \
12343 "movq "__percpu_arg([current_task])",%%rsi\n\t" \
12344 __switch_canary \
12345 - "movq %P[thread_info](%%rsi),%%r8\n\t" \
12346 + "movq "__percpu_arg([thread_info])",%%r8\n\t" \
12347 "movq %%rax,%%rdi\n\t" \
12348 "testl %[_tif_fork],%P[ti_flags](%%r8)\n\t" \
12349 "jnz ret_from_fork\n\t" \
12350 @@ -119,7 +119,7 @@ do { \
12351 [threadrsp] "i" (offsetof(struct task_struct, thread.sp)), \
12352 [ti_flags] "i" (offsetof(struct thread_info, flags)), \
12353 [_tif_fork] "i" (_TIF_FORK), \
12354 - [thread_info] "i" (offsetof(struct task_struct, stack)), \
12355 + [thread_info] "m" (current_tinfo), \
12356 [current_task] "m" (current_task) \
12357 __switch_canary_iparam \
12358 : "memory", "cc" __EXTRA_CLOBBER)
12359 diff --git a/arch/x86/include/asm/sys_ia32.h b/arch/x86/include/asm/sys_ia32.h
12360 index 3fda9db4..4ca1c61 100644
12361 --- a/arch/x86/include/asm/sys_ia32.h
12362 +++ b/arch/x86/include/asm/sys_ia32.h
12363 @@ -40,7 +40,7 @@ asmlinkage long sys32_sigaction(int, struct old_sigaction32 __user *,
12364 struct old_sigaction32 __user *);
12365 asmlinkage long sys32_alarm(unsigned int);
12366
12367 -asmlinkage long sys32_waitpid(compat_pid_t, unsigned int *, int);
12368 +asmlinkage long sys32_waitpid(compat_pid_t, unsigned int __user *, int);
12369 asmlinkage long sys32_sysfs(int, u32, u32);
12370
12371 asmlinkage long sys32_sched_rr_get_interval(compat_pid_t,
12372 diff --git a/arch/x86/include/asm/thread_info.h b/arch/x86/include/asm/thread_info.h
12373 index 89f794f..1422765 100644
12374 --- a/arch/x86/include/asm/thread_info.h
12375 +++ b/arch/x86/include/asm/thread_info.h
12376 @@ -10,6 +10,7 @@
12377 #include <linux/compiler.h>
12378 #include <asm/page.h>
12379 #include <asm/types.h>
12380 +#include <asm/percpu.h>
12381
12382 /*
12383 * low level task data that entry.S needs immediate access to
12384 @@ -24,7 +25,6 @@ struct exec_domain;
12385 #include <linux/atomic.h>
12386
12387 struct thread_info {
12388 - struct task_struct *task; /* main task structure */
12389 struct exec_domain *exec_domain; /* execution domain */
12390 __u32 flags; /* low level flags */
12391 __u32 status; /* thread synchronous flags */
12392 @@ -34,19 +34,13 @@ struct thread_info {
12393 mm_segment_t addr_limit;
12394 struct restart_block restart_block;
12395 void __user *sysenter_return;
12396 -#ifdef CONFIG_X86_32
12397 - unsigned long previous_esp; /* ESP of the previous stack in
12398 - case of nested (IRQ) stacks
12399 - */
12400 - __u8 supervisor_stack[0];
12401 -#endif
12402 + unsigned long lowest_stack;
12403 unsigned int sig_on_uaccess_error:1;
12404 unsigned int uaccess_err:1; /* uaccess failed */
12405 };
12406
12407 -#define INIT_THREAD_INFO(tsk) \
12408 +#define INIT_THREAD_INFO \
12409 { \
12410 - .task = &tsk, \
12411 .exec_domain = &default_exec_domain, \
12412 .flags = 0, \
12413 .cpu = 0, \
12414 @@ -57,7 +51,7 @@ struct thread_info {
12415 }, \
12416 }
12417
12418 -#define init_thread_info (init_thread_union.thread_info)
12419 +#define init_thread_info (init_thread_union.stack)
12420 #define init_stack (init_thread_union.stack)
12421
12422 #else /* !__ASSEMBLY__ */
12423 @@ -98,6 +92,7 @@ struct thread_info {
12424 #define TIF_SYSCALL_TRACEPOINT 28 /* syscall tracepoint instrumentation */
12425 #define TIF_ADDR32 29 /* 32-bit address space on 64 bits */
12426 #define TIF_X32 30 /* 32-bit native x86-64 binary */
12427 +#define TIF_GRSEC_SETXID 31 /* update credentials on syscall entry/exit */
12428
12429 #define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE)
12430 #define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME)
12431 @@ -122,16 +117,18 @@ struct thread_info {
12432 #define _TIF_SYSCALL_TRACEPOINT (1 << TIF_SYSCALL_TRACEPOINT)
12433 #define _TIF_ADDR32 (1 << TIF_ADDR32)
12434 #define _TIF_X32 (1 << TIF_X32)
12435 +#define _TIF_GRSEC_SETXID (1 << TIF_GRSEC_SETXID)
12436
12437 /* work to do in syscall_trace_enter() */
12438 #define _TIF_WORK_SYSCALL_ENTRY \
12439 (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_EMU | _TIF_SYSCALL_AUDIT | \
12440 - _TIF_SECCOMP | _TIF_SINGLESTEP | _TIF_SYSCALL_TRACEPOINT)
12441 + _TIF_SECCOMP | _TIF_SINGLESTEP | _TIF_SYSCALL_TRACEPOINT | \
12442 + _TIF_GRSEC_SETXID)
12443
12444 /* work to do in syscall_trace_leave() */
12445 #define _TIF_WORK_SYSCALL_EXIT \
12446 (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | _TIF_SINGLESTEP | \
12447 - _TIF_SYSCALL_TRACEPOINT)
12448 + _TIF_SYSCALL_TRACEPOINT | _TIF_GRSEC_SETXID)
12449
12450 /* work to do on interrupt/exception return */
12451 #define _TIF_WORK_MASK \
12452 @@ -141,7 +138,8 @@ struct thread_info {
12453
12454 /* work to do on any return to user space */
12455 #define _TIF_ALLWORK_MASK \
12456 - ((0x0000FFFF & ~_TIF_SECCOMP) | _TIF_SYSCALL_TRACEPOINT)
12457 + ((0x0000FFFF & ~_TIF_SECCOMP) | _TIF_SYSCALL_TRACEPOINT | \
12458 + _TIF_GRSEC_SETXID)
12459
12460 /* Only used for 64 bit */
12461 #define _TIF_DO_NOTIFY_MASK \
12462 @@ -157,45 +155,40 @@ struct thread_info {
12463
12464 #define PREEMPT_ACTIVE 0x10000000
12465
12466 -#ifdef CONFIG_X86_32
12467 -
12468 -#define STACK_WARN (THREAD_SIZE/8)
12469 -/*
12470 - * macros/functions for gaining access to the thread information structure
12471 - *
12472 - * preempt_count needs to be 1 initially, until the scheduler is functional.
12473 - */
12474 -#ifndef __ASSEMBLY__
12475 -
12476 -
12477 -/* how to get the current stack pointer from C */
12478 -register unsigned long current_stack_pointer asm("esp") __used;
12479 -
12480 -/* how to get the thread information struct from C */
12481 -static inline struct thread_info *current_thread_info(void)
12482 -{
12483 - return (struct thread_info *)
12484 - (current_stack_pointer & ~(THREAD_SIZE - 1));
12485 -}
12486 -
12487 -#else /* !__ASSEMBLY__ */
12488 -
12489 +#ifdef __ASSEMBLY__
12490 /* how to get the thread information struct from ASM */
12491 #define GET_THREAD_INFO(reg) \
12492 - movl $-THREAD_SIZE, reg; \
12493 - andl %esp, reg
12494 + mov PER_CPU_VAR(current_tinfo), reg
12495
12496 /* use this one if reg already contains %esp */
12497 -#define GET_THREAD_INFO_WITH_ESP(reg) \
12498 - andl $-THREAD_SIZE, reg
12499 +#define GET_THREAD_INFO_WITH_ESP(reg) GET_THREAD_INFO(reg)
12500 +#else
12501 +/* how to get the thread information struct from C */
12502 +DECLARE_PER_CPU(struct thread_info *, current_tinfo);
12503 +
12504 +static __always_inline struct thread_info *current_thread_info(void)
12505 +{
12506 + return this_cpu_read_stable(current_tinfo);
12507 +}
12508 +#endif
12509 +
12510 +#ifdef CONFIG_X86_32
12511 +
12512 +#define STACK_WARN (THREAD_SIZE/8)
12513 +/*
12514 + * macros/functions for gaining access to the thread information structure
12515 + *
12516 + * preempt_count needs to be 1 initially, until the scheduler is functional.
12517 + */
12518 +#ifndef __ASSEMBLY__
12519 +
12520 +/* how to get the current stack pointer from C */
12521 +register unsigned long current_stack_pointer asm("esp") __used;
12522
12523 #endif
12524
12525 #else /* X86_32 */
12526
12527 -#include <asm/percpu.h>
12528 -#define KERNEL_STACK_OFFSET (5*8)
12529 -
12530 /*
12531 * macros/functions for gaining access to the thread information structure
12532 * preempt_count needs to be 1 initially, until the scheduler is functional.
12533 @@ -203,27 +196,8 @@ static inline struct thread_info *current_thread_info(void)
12534 #ifndef __ASSEMBLY__
12535 DECLARE_PER_CPU(unsigned long, kernel_stack);
12536
12537 -static inline struct thread_info *current_thread_info(void)
12538 -{
12539 - struct thread_info *ti;
12540 - ti = (void *)(this_cpu_read_stable(kernel_stack) +
12541 - KERNEL_STACK_OFFSET - THREAD_SIZE);
12542 - return ti;
12543 -}
12544 -
12545 -#else /* !__ASSEMBLY__ */
12546 -
12547 -/* how to get the thread information struct from ASM */
12548 -#define GET_THREAD_INFO(reg) \
12549 - movq PER_CPU_VAR(kernel_stack),reg ; \
12550 - subq $(THREAD_SIZE-KERNEL_STACK_OFFSET),reg
12551 -
12552 -/*
12553 - * Same if PER_CPU_VAR(kernel_stack) is, perhaps with some offset, already in
12554 - * a certain register (to be used in assembler memory operands).
12555 - */
12556 -#define THREAD_INFO(reg, off) KERNEL_STACK_OFFSET+(off)-THREAD_SIZE(reg)
12557 -
12558 +/* how to get the current stack pointer from C */
12559 +register unsigned long current_stack_pointer asm("rsp") __used;
12560 #endif
12561
12562 #endif /* !X86_32 */
12563 @@ -284,5 +258,12 @@ static inline bool is_ia32_task(void)
12564 extern void arch_task_cache_init(void);
12565 extern int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src);
12566 extern void arch_release_task_struct(struct task_struct *tsk);
12567 +
12568 +#define __HAVE_THREAD_FUNCTIONS
12569 +#define task_thread_info(task) (&(task)->tinfo)
12570 +#define task_stack_page(task) ((task)->stack)
12571 +#define setup_thread_stack(p, org) do {} while (0)
12572 +#define end_of_stack(p) ((unsigned long *)task_stack_page(p) + 1)
12573 +
12574 #endif
12575 #endif /* _ASM_X86_THREAD_INFO_H */
12576 diff --git a/arch/x86/include/asm/uaccess.h b/arch/x86/include/asm/uaccess.h
12577 index e1f3a17..1ab364d 100644
12578 --- a/arch/x86/include/asm/uaccess.h
12579 +++ b/arch/x86/include/asm/uaccess.h
12580 @@ -7,12 +7,15 @@
12581 #include <linux/compiler.h>
12582 #include <linux/thread_info.h>
12583 #include <linux/string.h>
12584 +#include <linux/sched.h>
12585 #include <asm/asm.h>
12586 #include <asm/page.h>
12587
12588 #define VERIFY_READ 0
12589 #define VERIFY_WRITE 1
12590
12591 +extern void check_object_size(const void *ptr, unsigned long n, bool to);
12592 +
12593 /*
12594 * The fs value determines whether argument validity checking should be
12595 * performed or not. If get_fs() == USER_DS, checking is performed, with
12596 @@ -28,7 +31,12 @@
12597
12598 #define get_ds() (KERNEL_DS)
12599 #define get_fs() (current_thread_info()->addr_limit)
12600 +#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_MEMORY_UDEREF)
12601 +void __set_fs(mm_segment_t x);
12602 +void set_fs(mm_segment_t x);
12603 +#else
12604 #define set_fs(x) (current_thread_info()->addr_limit = (x))
12605 +#endif
12606
12607 #define segment_eq(a, b) ((a).seg == (b).seg)
12608
12609 @@ -76,8 +84,33 @@
12610 * checks that the pointer is in the user space range - after calling
12611 * this function, memory access functions may still return -EFAULT.
12612 */
12613 -#define access_ok(type, addr, size) \
12614 - (likely(__range_not_ok(addr, size, user_addr_max()) == 0))
12615 +#define __access_ok(type, addr, size) (likely(__range_not_ok(addr, size, user_addr_max()) == 0))
12616 +#define access_ok(type, addr, size) \
12617 +({ \
12618 + long __size = size; \
12619 + unsigned long __addr = (unsigned long)addr; \
12620 + unsigned long __addr_ao = __addr & PAGE_MASK; \
12621 + unsigned long __end_ao = __addr + __size - 1; \
12622 + bool __ret_ao = __range_not_ok(__addr, __size, user_addr_max()) == 0;\
12623 + if (__ret_ao && unlikely((__end_ao ^ __addr_ao) & PAGE_MASK)) { \
12624 + while(__addr_ao <= __end_ao) { \
12625 + char __c_ao; \
12626 + __addr_ao += PAGE_SIZE; \
12627 + if (__size > PAGE_SIZE) \
12628 + cond_resched(); \
12629 + if (__get_user(__c_ao, (char __user *)__addr)) \
12630 + break; \
12631 + if (type != VERIFY_WRITE) { \
12632 + __addr = __addr_ao; \
12633 + continue; \
12634 + } \
12635 + if (__put_user(__c_ao, (char __user *)__addr)) \
12636 + break; \
12637 + __addr = __addr_ao; \
12638 + } \
12639 + } \
12640 + __ret_ao; \
12641 +})
12642
12643 /*
12644 * The exception table consists of pairs of addresses relative to the
12645 @@ -188,12 +221,20 @@ extern int __get_user_bad(void);
12646 asm volatile("call __put_user_" #size : "=a" (__ret_pu) \
12647 : "0" ((typeof(*(ptr)))(x)), "c" (ptr) : "ebx")
12648
12649 -
12650 +#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_MEMORY_UDEREF)
12651 +#define __copyuser_seg "gs;"
12652 +#define __COPYUSER_SET_ES "pushl %%gs; popl %%es\n"
12653 +#define __COPYUSER_RESTORE_ES "pushl %%ss; popl %%es\n"
12654 +#else
12655 +#define __copyuser_seg
12656 +#define __COPYUSER_SET_ES
12657 +#define __COPYUSER_RESTORE_ES
12658 +#endif
12659
12660 #ifdef CONFIG_X86_32
12661 #define __put_user_asm_u64(x, addr, err, errret) \
12662 - asm volatile("1: movl %%eax,0(%2)\n" \
12663 - "2: movl %%edx,4(%2)\n" \
12664 + asm volatile("1: "__copyuser_seg"movl %%eax,0(%2)\n" \
12665 + "2: "__copyuser_seg"movl %%edx,4(%2)\n" \
12666 "3:\n" \
12667 ".section .fixup,\"ax\"\n" \
12668 "4: movl %3,%0\n" \
12669 @@ -205,8 +246,8 @@ extern int __get_user_bad(void);
12670 : "A" (x), "r" (addr), "i" (errret), "0" (err))
12671
12672 #define __put_user_asm_ex_u64(x, addr) \
12673 - asm volatile("1: movl %%eax,0(%1)\n" \
12674 - "2: movl %%edx,4(%1)\n" \
12675 + asm volatile("1: "__copyuser_seg"movl %%eax,0(%1)\n" \
12676 + "2: "__copyuser_seg"movl %%edx,4(%1)\n" \
12677 "3:\n" \
12678 _ASM_EXTABLE_EX(1b, 2b) \
12679 _ASM_EXTABLE_EX(2b, 3b) \
12680 @@ -258,7 +299,7 @@ extern void __put_user_8(void);
12681 __typeof__(*(ptr)) __pu_val; \
12682 __chk_user_ptr(ptr); \
12683 might_fault(); \
12684 - __pu_val = x; \
12685 + __pu_val = (x); \
12686 switch (sizeof(*(ptr))) { \
12687 case 1: \
12688 __put_user_x(1, __pu_val, ptr, __ret_pu); \
12689 @@ -379,7 +420,7 @@ do { \
12690 } while (0)
12691
12692 #define __get_user_asm(x, addr, err, itype, rtype, ltype, errret) \
12693 - asm volatile("1: mov"itype" %2,%"rtype"1\n" \
12694 + asm volatile("1: "__copyuser_seg"mov"itype" %2,%"rtype"1\n"\
12695 "2:\n" \
12696 ".section .fixup,\"ax\"\n" \
12697 "3: mov %3,%0\n" \
12698 @@ -387,7 +428,7 @@ do { \
12699 " jmp 2b\n" \
12700 ".previous\n" \
12701 _ASM_EXTABLE(1b, 3b) \
12702 - : "=r" (err), ltype(x) \
12703 + : "=r" (err), ltype (x) \
12704 : "m" (__m(addr)), "i" (errret), "0" (err))
12705
12706 #define __get_user_size_ex(x, ptr, size) \
12707 @@ -412,7 +453,7 @@ do { \
12708 } while (0)
12709
12710 #define __get_user_asm_ex(x, addr, itype, rtype, ltype) \
12711 - asm volatile("1: mov"itype" %1,%"rtype"0\n" \
12712 + asm volatile("1: "__copyuser_seg"mov"itype" %1,%"rtype"0\n"\
12713 "2:\n" \
12714 _ASM_EXTABLE_EX(1b, 2b) \
12715 : ltype(x) : "m" (__m(addr)))
12716 @@ -429,13 +470,24 @@ do { \
12717 int __gu_err; \
12718 unsigned long __gu_val; \
12719 __get_user_size(__gu_val, (ptr), (size), __gu_err, -EFAULT); \
12720 - (x) = (__force __typeof__(*(ptr)))__gu_val; \
12721 + (x) = (__typeof__(*(ptr)))__gu_val; \
12722 __gu_err; \
12723 })
12724
12725 /* FIXME: this hack is definitely wrong -AK */
12726 struct __large_struct { unsigned long buf[100]; };
12727 -#define __m(x) (*(struct __large_struct __user *)(x))
12728 +#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
12729 +#define ____m(x) \
12730 +({ \
12731 + unsigned long ____x = (unsigned long)(x); \
12732 + if (____x < PAX_USER_SHADOW_BASE) \
12733 + ____x += PAX_USER_SHADOW_BASE; \
12734 + (void __user *)____x; \
12735 +})
12736 +#else
12737 +#define ____m(x) (x)
12738 +#endif
12739 +#define __m(x) (*(struct __large_struct __user *)____m(x))
12740
12741 /*
12742 * Tell gcc we read from memory instead of writing: this is because
12743 @@ -443,7 +495,7 @@ struct __large_struct { unsigned long buf[100]; };
12744 * aliasing issues.
12745 */
12746 #define __put_user_asm(x, addr, err, itype, rtype, ltype, errret) \
12747 - asm volatile("1: mov"itype" %"rtype"1,%2\n" \
12748 + asm volatile("1: "__copyuser_seg"mov"itype" %"rtype"1,%2\n"\
12749 "2:\n" \
12750 ".section .fixup,\"ax\"\n" \
12751 "3: mov %3,%0\n" \
12752 @@ -451,10 +503,10 @@ struct __large_struct { unsigned long buf[100]; };
12753 ".previous\n" \
12754 _ASM_EXTABLE(1b, 3b) \
12755 : "=r"(err) \
12756 - : ltype(x), "m" (__m(addr)), "i" (errret), "0" (err))
12757 + : ltype (x), "m" (__m(addr)), "i" (errret), "0" (err))
12758
12759 #define __put_user_asm_ex(x, addr, itype, rtype, ltype) \
12760 - asm volatile("1: mov"itype" %"rtype"0,%1\n" \
12761 + asm volatile("1: "__copyuser_seg"mov"itype" %"rtype"0,%1\n"\
12762 "2:\n" \
12763 _ASM_EXTABLE_EX(1b, 2b) \
12764 : : ltype(x), "m" (__m(addr)))
12765 @@ -493,8 +545,12 @@ struct __large_struct { unsigned long buf[100]; };
12766 * On error, the variable @x is set to zero.
12767 */
12768
12769 +#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
12770 +#define __get_user(x, ptr) get_user((x), (ptr))
12771 +#else
12772 #define __get_user(x, ptr) \
12773 __get_user_nocheck((x), (ptr), sizeof(*(ptr)))
12774 +#endif
12775
12776 /**
12777 * __put_user: - Write a simple value into user space, with less checking.
12778 @@ -516,8 +572,12 @@ struct __large_struct { unsigned long buf[100]; };
12779 * Returns zero on success, or -EFAULT on error.
12780 */
12781
12782 +#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
12783 +#define __put_user(x, ptr) put_user((x), (ptr))
12784 +#else
12785 #define __put_user(x, ptr) \
12786 __put_user_nocheck((__typeof__(*(ptr)))(x), (ptr), sizeof(*(ptr)))
12787 +#endif
12788
12789 #define __get_user_unaligned __get_user
12790 #define __put_user_unaligned __put_user
12791 @@ -535,7 +595,7 @@ struct __large_struct { unsigned long buf[100]; };
12792 #define get_user_ex(x, ptr) do { \
12793 unsigned long __gue_val; \
12794 __get_user_size_ex((__gue_val), (ptr), (sizeof(*(ptr)))); \
12795 - (x) = (__force __typeof__(*(ptr)))__gue_val; \
12796 + (x) = (__typeof__(*(ptr)))__gue_val; \
12797 } while (0)
12798
12799 #ifdef CONFIG_X86_WP_WORKS_OK
12800 diff --git a/arch/x86/include/asm/uaccess_32.h b/arch/x86/include/asm/uaccess_32.h
12801 index 576e39b..ccd0a39 100644
12802 --- a/arch/x86/include/asm/uaccess_32.h
12803 +++ b/arch/x86/include/asm/uaccess_32.h
12804 @@ -11,15 +11,15 @@
12805 #include <asm/page.h>
12806
12807 unsigned long __must_check __copy_to_user_ll
12808 - (void __user *to, const void *from, unsigned long n);
12809 + (void __user *to, const void *from, unsigned long n) __size_overflow(3);
12810 unsigned long __must_check __copy_from_user_ll
12811 - (void *to, const void __user *from, unsigned long n);
12812 + (void *to, const void __user *from, unsigned long n) __size_overflow(3);
12813 unsigned long __must_check __copy_from_user_ll_nozero
12814 - (void *to, const void __user *from, unsigned long n);
12815 + (void *to, const void __user *from, unsigned long n) __size_overflow(3);
12816 unsigned long __must_check __copy_from_user_ll_nocache
12817 - (void *to, const void __user *from, unsigned long n);
12818 + (void *to, const void __user *from, unsigned long n) __size_overflow(3);
12819 unsigned long __must_check __copy_from_user_ll_nocache_nozero
12820 - (void *to, const void __user *from, unsigned long n);
12821 + (void *to, const void __user *from, unsigned long n) __size_overflow(3);
12822
12823 /**
12824 * __copy_to_user_inatomic: - Copy a block of data into user space, with less checking.
12825 @@ -43,6 +43,9 @@ unsigned long __must_check __copy_from_user_ll_nocache_nozero
12826 static __always_inline unsigned long __must_check
12827 __copy_to_user_inatomic(void __user *to, const void *from, unsigned long n)
12828 {
12829 + if ((long)n < 0)
12830 + return n;
12831 +
12832 if (__builtin_constant_p(n)) {
12833 unsigned long ret;
12834
12835 @@ -61,6 +64,8 @@ __copy_to_user_inatomic(void __user *to, const void *from, unsigned long n)
12836 return ret;
12837 }
12838 }
12839 + if (!__builtin_constant_p(n))
12840 + check_object_size(from, n, true);
12841 return __copy_to_user_ll(to, from, n);
12842 }
12843
12844 @@ -82,12 +87,16 @@ static __always_inline unsigned long __must_check
12845 __copy_to_user(void __user *to, const void *from, unsigned long n)
12846 {
12847 might_fault();
12848 +
12849 return __copy_to_user_inatomic(to, from, n);
12850 }
12851
12852 static __always_inline unsigned long
12853 __copy_from_user_inatomic(void *to, const void __user *from, unsigned long n)
12854 {
12855 + if ((long)n < 0)
12856 + return n;
12857 +
12858 /* Avoid zeroing the tail if the copy fails..
12859 * If 'n' is constant and 1, 2, or 4, we do still zero on a failure,
12860 * but as the zeroing behaviour is only significant when n is not
12861 @@ -137,6 +146,10 @@ static __always_inline unsigned long
12862 __copy_from_user(void *to, const void __user *from, unsigned long n)
12863 {
12864 might_fault();
12865 +
12866 + if ((long)n < 0)
12867 + return n;
12868 +
12869 if (__builtin_constant_p(n)) {
12870 unsigned long ret;
12871
12872 @@ -152,6 +165,8 @@ __copy_from_user(void *to, const void __user *from, unsigned long n)
12873 return ret;
12874 }
12875 }
12876 + if (!__builtin_constant_p(n))
12877 + check_object_size(to, n, false);
12878 return __copy_from_user_ll(to, from, n);
12879 }
12880
12881 @@ -159,6 +174,10 @@ static __always_inline unsigned long __copy_from_user_nocache(void *to,
12882 const void __user *from, unsigned long n)
12883 {
12884 might_fault();
12885 +
12886 + if ((long)n < 0)
12887 + return n;
12888 +
12889 if (__builtin_constant_p(n)) {
12890 unsigned long ret;
12891
12892 @@ -181,15 +200,19 @@ static __always_inline unsigned long
12893 __copy_from_user_inatomic_nocache(void *to, const void __user *from,
12894 unsigned long n)
12895 {
12896 - return __copy_from_user_ll_nocache_nozero(to, from, n);
12897 + if ((long)n < 0)
12898 + return n;
12899 +
12900 + return __copy_from_user_ll_nocache_nozero(to, from, n);
12901 }
12902
12903 -unsigned long __must_check copy_to_user(void __user *to,
12904 - const void *from, unsigned long n);
12905 -unsigned long __must_check _copy_from_user(void *to,
12906 - const void __user *from,
12907 - unsigned long n);
12908 -
12909 +extern void copy_to_user_overflow(void)
12910 +#ifdef CONFIG_DEBUG_STRICT_USER_COPY_CHECKS
12911 + __compiletime_error("copy_to_user() buffer size is not provably correct")
12912 +#else
12913 + __compiletime_warning("copy_to_user() buffer size is not provably correct")
12914 +#endif
12915 +;
12916
12917 extern void copy_from_user_overflow(void)
12918 #ifdef CONFIG_DEBUG_STRICT_USER_COPY_CHECKS
12919 @@ -199,21 +222,65 @@ extern void copy_from_user_overflow(void)
12920 #endif
12921 ;
12922
12923 -static inline unsigned long __must_check copy_from_user(void *to,
12924 - const void __user *from,
12925 - unsigned long n)
12926 +/**
12927 + * copy_to_user: - Copy a block of data into user space.
12928 + * @to: Destination address, in user space.
12929 + * @from: Source address, in kernel space.
12930 + * @n: Number of bytes to copy.
12931 + *
12932 + * Context: User context only. This function may sleep.
12933 + *
12934 + * Copy data from kernel space to user space.
12935 + *
12936 + * Returns number of bytes that could not be copied.
12937 + * On success, this will be zero.
12938 + */
12939 +static inline unsigned long __must_check
12940 +copy_to_user(void __user *to, const void *from, unsigned long n)
12941 {
12942 - int sz = __compiletime_object_size(to);
12943 + size_t sz = __compiletime_object_size(from);
12944
12945 - if (likely(sz == -1 || sz >= n))
12946 - n = _copy_from_user(to, from, n);
12947 - else
12948 + if (unlikely(sz != (size_t)-1 && sz < n))
12949 + copy_to_user_overflow();
12950 + else if (access_ok(VERIFY_WRITE, to, n))
12951 + n = __copy_to_user(to, from, n);
12952 + return n;
12953 +}
12954 +
12955 +/**
12956 + * copy_from_user: - Copy a block of data from user space.
12957 + * @to: Destination address, in kernel space.
12958 + * @from: Source address, in user space.
12959 + * @n: Number of bytes to copy.
12960 + *
12961 + * Context: User context only. This function may sleep.
12962 + *
12963 + * Copy data from user space to kernel space.
12964 + *
12965 + * Returns number of bytes that could not be copied.
12966 + * On success, this will be zero.
12967 + *
12968 + * If some data could not be copied, this function will pad the copied
12969 + * data to the requested size using zero bytes.
12970 + */
12971 +static inline unsigned long __must_check
12972 +copy_from_user(void *to, const void __user *from, unsigned long n)
12973 +{
12974 + size_t sz = __compiletime_object_size(to);
12975 +
12976 + if (unlikely(sz != (size_t)-1 && sz < n))
12977 copy_from_user_overflow();
12978 -
12979 + else if (access_ok(VERIFY_READ, from, n))
12980 + n = __copy_from_user(to, from, n);
12981 + else if ((long)n > 0) {
12982 + if (!__builtin_constant_p(n))
12983 + check_object_size(to, n, false);
12984 + memset(to, 0, n);
12985 + }
12986 return n;
12987 }
12988
12989 -unsigned long __must_check clear_user(void __user *mem, unsigned long len);
12990 -unsigned long __must_check __clear_user(void __user *mem, unsigned long len);
12991 +unsigned long __must_check clear_user(void __user *mem, unsigned long len) __size_overflow(2);
12992 +unsigned long __must_check __clear_user(void __user *mem, unsigned long len) __size_overflow(2);
12993
12994 #endif /* _ASM_X86_UACCESS_32_H */
12995 diff --git a/arch/x86/include/asm/uaccess_64.h b/arch/x86/include/asm/uaccess_64.h
12996 index 8e796fb..72fd934 100644
12997 --- a/arch/x86/include/asm/uaccess_64.h
12998 +++ b/arch/x86/include/asm/uaccess_64.h
12999 @@ -10,6 +10,9 @@
13000 #include <asm/alternative.h>
13001 #include <asm/cpufeature.h>
13002 #include <asm/page.h>
13003 +#include <asm/pgtable.h>
13004 +
13005 +#define set_fs(x) (current_thread_info()->addr_limit = (x))
13006
13007 /*
13008 * Copy To/From Userspace
13009 @@ -17,12 +20,14 @@
13010
13011 /* Handles exceptions in both to and from, but doesn't do access_ok */
13012 __must_check unsigned long
13013 -copy_user_generic_string(void *to, const void *from, unsigned len);
13014 +copy_user_generic_string(void *to, const void *from, unsigned long len) __size_overflow(3);
13015 __must_check unsigned long
13016 -copy_user_generic_unrolled(void *to, const void *from, unsigned len);
13017 +copy_user_generic_unrolled(void *to, const void *from, unsigned long len) __size_overflow(3);
13018
13019 static __always_inline __must_check unsigned long
13020 -copy_user_generic(void *to, const void *from, unsigned len)
13021 +copy_user_generic(void *to, const void *from, unsigned long len) __size_overflow(3);
13022 +static __always_inline __must_check unsigned long
13023 +copy_user_generic(void *to, const void *from, unsigned long len)
13024 {
13025 unsigned ret;
13026
13027 @@ -32,142 +37,238 @@ copy_user_generic(void *to, const void *from, unsigned len)
13028 ASM_OUTPUT2("=a" (ret), "=D" (to), "=S" (from),
13029 "=d" (len)),
13030 "1" (to), "2" (from), "3" (len)
13031 - : "memory", "rcx", "r8", "r9", "r10", "r11");
13032 + : "memory", "rcx", "r8", "r9", "r11");
13033 return ret;
13034 }
13035
13036 +static __always_inline __must_check unsigned long
13037 +__copy_to_user(void __user *to, const void *from, unsigned long len) __size_overflow(3);
13038 +static __always_inline __must_check unsigned long
13039 +__copy_from_user(void *to, const void __user *from, unsigned long len) __size_overflow(3);
13040 __must_check unsigned long
13041 -_copy_to_user(void __user *to, const void *from, unsigned len);
13042 -__must_check unsigned long
13043 -_copy_from_user(void *to, const void __user *from, unsigned len);
13044 -__must_check unsigned long
13045 -copy_in_user(void __user *to, const void __user *from, unsigned len);
13046 +copy_in_user(void __user *to, const void __user *from, unsigned long len) __size_overflow(3);
13047 +
13048 +extern void copy_to_user_overflow(void)
13049 +#ifdef CONFIG_DEBUG_STRICT_USER_COPY_CHECKS
13050 + __compiletime_error("copy_to_user() buffer size is not provably correct")
13051 +#else
13052 + __compiletime_warning("copy_to_user() buffer size is not provably correct")
13053 +#endif
13054 +;
13055 +
13056 +extern void copy_from_user_overflow(void)
13057 +#ifdef CONFIG_DEBUG_STRICT_USER_COPY_CHECKS
13058 + __compiletime_error("copy_from_user() buffer size is not provably correct")
13059 +#else
13060 + __compiletime_warning("copy_from_user() buffer size is not provably correct")
13061 +#endif
13062 +;
13063
13064 static inline unsigned long __must_check copy_from_user(void *to,
13065 const void __user *from,
13066 unsigned long n)
13067 {
13068 - int sz = __compiletime_object_size(to);
13069 -
13070 might_fault();
13071 - if (likely(sz == -1 || sz >= n))
13072 - n = _copy_from_user(to, from, n);
13073 -#ifdef CONFIG_DEBUG_VM
13074 - else
13075 - WARN(1, "Buffer overflow detected!\n");
13076 -#endif
13077 +
13078 + if (access_ok(VERIFY_READ, from, n))
13079 + n = __copy_from_user(to, from, n);
13080 + else if (n < INT_MAX) {
13081 + if (!__builtin_constant_p(n))
13082 + check_object_size(to, n, false);
13083 + memset(to, 0, n);
13084 + }
13085 return n;
13086 }
13087
13088 static __always_inline __must_check
13089 -int copy_to_user(void __user *dst, const void *src, unsigned size)
13090 +int copy_to_user(void __user *dst, const void *src, unsigned long size)
13091 {
13092 might_fault();
13093
13094 - return _copy_to_user(dst, src, size);
13095 + if (access_ok(VERIFY_WRITE, dst, size))
13096 + size = __copy_to_user(dst, src, size);
13097 + return size;
13098 }
13099
13100 static __always_inline __must_check
13101 -int __copy_from_user(void *dst, const void __user *src, unsigned size)
13102 +unsigned long __copy_from_user(void *dst, const void __user *src, unsigned long size)
13103 {
13104 - int ret = 0;
13105 + size_t sz = __compiletime_object_size(dst);
13106 + unsigned ret = 0;
13107
13108 might_fault();
13109 - if (!__builtin_constant_p(size))
13110 - return copy_user_generic(dst, (__force void *)src, size);
13111 +
13112 + if (size > INT_MAX)
13113 + return size;
13114 +
13115 +#ifdef CONFIG_PAX_MEMORY_UDEREF
13116 + if (!__access_ok(VERIFY_READ, src, size))
13117 + return size;
13118 +#endif
13119 +
13120 + if (unlikely(sz != (size_t)-1 && sz < size)) {
13121 + copy_from_user_overflow();
13122 + return size;
13123 + }
13124 +
13125 + if (!__builtin_constant_p(size)) {
13126 + check_object_size(dst, size, false);
13127 +
13128 +#ifdef CONFIG_PAX_MEMORY_UDEREF
13129 + if ((unsigned long)src < PAX_USER_SHADOW_BASE)
13130 + src += PAX_USER_SHADOW_BASE;
13131 +#endif
13132 +
13133 + return copy_user_generic(dst, (__force_kernel const void *)src, size);
13134 + }
13135 switch (size) {
13136 - case 1:__get_user_asm(*(u8 *)dst, (u8 __user *)src,
13137 + case 1:__get_user_asm(*(u8 *)dst, (const u8 __user *)src,
13138 ret, "b", "b", "=q", 1);
13139 return ret;
13140 - case 2:__get_user_asm(*(u16 *)dst, (u16 __user *)src,
13141 + case 2:__get_user_asm(*(u16 *)dst, (const u16 __user *)src,
13142 ret, "w", "w", "=r", 2);
13143 return ret;
13144 - case 4:__get_user_asm(*(u32 *)dst, (u32 __user *)src,
13145 + case 4:__get_user_asm(*(u32 *)dst, (const u32 __user *)src,
13146 ret, "l", "k", "=r", 4);
13147 return ret;
13148 - case 8:__get_user_asm(*(u64 *)dst, (u64 __user *)src,
13149 + case 8:__get_user_asm(*(u64 *)dst, (const u64 __user *)src,
13150 ret, "q", "", "=r", 8);
13151 return ret;
13152 case 10:
13153 - __get_user_asm(*(u64 *)dst, (u64 __user *)src,
13154 + __get_user_asm(*(u64 *)dst, (const u64 __user *)src,
13155 ret, "q", "", "=r", 10);
13156 if (unlikely(ret))
13157 return ret;
13158 __get_user_asm(*(u16 *)(8 + (char *)dst),
13159 - (u16 __user *)(8 + (char __user *)src),
13160 + (const u16 __user *)(8 + (const char __user *)src),
13161 ret, "w", "w", "=r", 2);
13162 return ret;
13163 case 16:
13164 - __get_user_asm(*(u64 *)dst, (u64 __user *)src,
13165 + __get_user_asm(*(u64 *)dst, (const u64 __user *)src,
13166 ret, "q", "", "=r", 16);
13167 if (unlikely(ret))
13168 return ret;
13169 __get_user_asm(*(u64 *)(8 + (char *)dst),
13170 - (u64 __user *)(8 + (char __user *)src),
13171 + (const u64 __user *)(8 + (const char __user *)src),
13172 ret, "q", "", "=r", 8);
13173 return ret;
13174 default:
13175 - return copy_user_generic(dst, (__force void *)src, size);
13176 +
13177 +#ifdef CONFIG_PAX_MEMORY_UDEREF
13178 + if ((unsigned long)src < PAX_USER_SHADOW_BASE)
13179 + src += PAX_USER_SHADOW_BASE;
13180 +#endif
13181 +
13182 + return copy_user_generic(dst, (__force_kernel const void *)src, size);
13183 }
13184 }
13185
13186 static __always_inline __must_check
13187 -int __copy_to_user(void __user *dst, const void *src, unsigned size)
13188 +unsigned long __copy_to_user(void __user *dst, const void *src, unsigned long size)
13189 {
13190 - int ret = 0;
13191 + size_t sz = __compiletime_object_size(src);
13192 + unsigned ret = 0;
13193
13194 might_fault();
13195 - if (!__builtin_constant_p(size))
13196 - return copy_user_generic((__force void *)dst, src, size);
13197 +
13198 + if (size > INT_MAX)
13199 + return size;
13200 +
13201 +#ifdef CONFIG_PAX_MEMORY_UDEREF
13202 + if (!__access_ok(VERIFY_WRITE, dst, size))
13203 + return size;
13204 +#endif
13205 +
13206 + if (unlikely(sz != (size_t)-1 && sz < size)) {
13207 + copy_to_user_overflow();
13208 + return size;
13209 + }
13210 +
13211 + if (!__builtin_constant_p(size)) {
13212 + check_object_size(src, size, true);
13213 +
13214 +#ifdef CONFIG_PAX_MEMORY_UDEREF
13215 + if ((unsigned long)dst < PAX_USER_SHADOW_BASE)
13216 + dst += PAX_USER_SHADOW_BASE;
13217 +#endif
13218 +
13219 + return copy_user_generic((__force_kernel void *)dst, src, size);
13220 + }
13221 switch (size) {
13222 - case 1:__put_user_asm(*(u8 *)src, (u8 __user *)dst,
13223 + case 1:__put_user_asm(*(const u8 *)src, (u8 __user *)dst,
13224 ret, "b", "b", "iq", 1);
13225 return ret;
13226 - case 2:__put_user_asm(*(u16 *)src, (u16 __user *)dst,
13227 + case 2:__put_user_asm(*(const u16 *)src, (u16 __user *)dst,
13228 ret, "w", "w", "ir", 2);
13229 return ret;
13230 - case 4:__put_user_asm(*(u32 *)src, (u32 __user *)dst,
13231 + case 4:__put_user_asm(*(const u32 *)src, (u32 __user *)dst,
13232 ret, "l", "k", "ir", 4);
13233 return ret;
13234 - case 8:__put_user_asm(*(u64 *)src, (u64 __user *)dst,
13235 + case 8:__put_user_asm(*(const u64 *)src, (u64 __user *)dst,
13236 ret, "q", "", "er", 8);
13237 return ret;
13238 case 10:
13239 - __put_user_asm(*(u64 *)src, (u64 __user *)dst,
13240 + __put_user_asm(*(const u64 *)src, (u64 __user *)dst,
13241 ret, "q", "", "er", 10);
13242 if (unlikely(ret))
13243 return ret;
13244 asm("":::"memory");
13245 - __put_user_asm(4[(u16 *)src], 4 + (u16 __user *)dst,
13246 + __put_user_asm(4[(const u16 *)src], 4 + (u16 __user *)dst,
13247 ret, "w", "w", "ir", 2);
13248 return ret;
13249 case 16:
13250 - __put_user_asm(*(u64 *)src, (u64 __user *)dst,
13251 + __put_user_asm(*(const u64 *)src, (u64 __user *)dst,
13252 ret, "q", "", "er", 16);
13253 if (unlikely(ret))
13254 return ret;
13255 asm("":::"memory");
13256 - __put_user_asm(1[(u64 *)src], 1 + (u64 __user *)dst,
13257 + __put_user_asm(1[(const u64 *)src], 1 + (u64 __user *)dst,
13258 ret, "q", "", "er", 8);
13259 return ret;
13260 default:
13261 - return copy_user_generic((__force void *)dst, src, size);
13262 +
13263 +#ifdef CONFIG_PAX_MEMORY_UDEREF
13264 + if ((unsigned long)dst < PAX_USER_SHADOW_BASE)
13265 + dst += PAX_USER_SHADOW_BASE;
13266 +#endif
13267 +
13268 + return copy_user_generic((__force_kernel void *)dst, src, size);
13269 }
13270 }
13271
13272 static __always_inline __must_check
13273 -int __copy_in_user(void __user *dst, const void __user *src, unsigned size)
13274 +unsigned long __copy_in_user(void __user *dst, const void __user *src, unsigned long size)
13275 {
13276 - int ret = 0;
13277 + unsigned ret = 0;
13278
13279 might_fault();
13280 - if (!__builtin_constant_p(size))
13281 - return copy_user_generic((__force void *)dst,
13282 - (__force void *)src, size);
13283 +
13284 + if (size > INT_MAX)
13285 + return size;
13286 +
13287 +#ifdef CONFIG_PAX_MEMORY_UDEREF
13288 + if (!__access_ok(VERIFY_READ, src, size))
13289 + return size;
13290 + if (!__access_ok(VERIFY_WRITE, dst, size))
13291 + return size;
13292 +#endif
13293 +
13294 + if (!__builtin_constant_p(size)) {
13295 +
13296 +#ifdef CONFIG_PAX_MEMORY_UDEREF
13297 + if ((unsigned long)src < PAX_USER_SHADOW_BASE)
13298 + src += PAX_USER_SHADOW_BASE;
13299 + if ((unsigned long)dst < PAX_USER_SHADOW_BASE)
13300 + dst += PAX_USER_SHADOW_BASE;
13301 +#endif
13302 +
13303 + return copy_user_generic((__force_kernel void *)dst,
13304 + (__force_kernel const void *)src, size);
13305 + }
13306 switch (size) {
13307 case 1: {
13308 u8 tmp;
13309 - __get_user_asm(tmp, (u8 __user *)src,
13310 + __get_user_asm(tmp, (const u8 __user *)src,
13311 ret, "b", "b", "=q", 1);
13312 if (likely(!ret))
13313 __put_user_asm(tmp, (u8 __user *)dst,
13314 @@ -176,7 +277,7 @@ int __copy_in_user(void __user *dst, const void __user *src, unsigned size)
13315 }
13316 case 2: {
13317 u16 tmp;
13318 - __get_user_asm(tmp, (u16 __user *)src,
13319 + __get_user_asm(tmp, (const u16 __user *)src,
13320 ret, "w", "w", "=r", 2);
13321 if (likely(!ret))
13322 __put_user_asm(tmp, (u16 __user *)dst,
13323 @@ -186,7 +287,7 @@ int __copy_in_user(void __user *dst, const void __user *src, unsigned size)
13324
13325 case 4: {
13326 u32 tmp;
13327 - __get_user_asm(tmp, (u32 __user *)src,
13328 + __get_user_asm(tmp, (const u32 __user *)src,
13329 ret, "l", "k", "=r", 4);
13330 if (likely(!ret))
13331 __put_user_asm(tmp, (u32 __user *)dst,
13332 @@ -195,7 +296,7 @@ int __copy_in_user(void __user *dst, const void __user *src, unsigned size)
13333 }
13334 case 8: {
13335 u64 tmp;
13336 - __get_user_asm(tmp, (u64 __user *)src,
13337 + __get_user_asm(tmp, (const u64 __user *)src,
13338 ret, "q", "", "=r", 8);
13339 if (likely(!ret))
13340 __put_user_asm(tmp, (u64 __user *)dst,
13341 @@ -203,44 +304,89 @@ int __copy_in_user(void __user *dst, const void __user *src, unsigned size)
13342 return ret;
13343 }
13344 default:
13345 - return copy_user_generic((__force void *)dst,
13346 - (__force void *)src, size);
13347 +
13348 +#ifdef CONFIG_PAX_MEMORY_UDEREF
13349 + if ((unsigned long)src < PAX_USER_SHADOW_BASE)
13350 + src += PAX_USER_SHADOW_BASE;
13351 + if ((unsigned long)dst < PAX_USER_SHADOW_BASE)
13352 + dst += PAX_USER_SHADOW_BASE;
13353 +#endif
13354 +
13355 + return copy_user_generic((__force_kernel void *)dst,
13356 + (__force_kernel const void *)src, size);
13357 }
13358 }
13359
13360 -__must_check unsigned long clear_user(void __user *mem, unsigned long len);
13361 -__must_check unsigned long __clear_user(void __user *mem, unsigned long len);
13362 +__must_check unsigned long clear_user(void __user *mem, unsigned long len) __size_overflow(2);
13363 +__must_check unsigned long __clear_user(void __user *mem, unsigned long len) __size_overflow(2);
13364
13365 static __must_check __always_inline int
13366 -__copy_from_user_inatomic(void *dst, const void __user *src, unsigned size)
13367 +__copy_from_user_inatomic(void *dst, const void __user *src, unsigned long size)
13368 {
13369 - return copy_user_generic(dst, (__force const void *)src, size);
13370 + if (size > INT_MAX)
13371 + return size;
13372 +
13373 +#ifdef CONFIG_PAX_MEMORY_UDEREF
13374 + if (!__access_ok(VERIFY_READ, src, size))
13375 + return size;
13376 +
13377 + if ((unsigned long)src < PAX_USER_SHADOW_BASE)
13378 + src += PAX_USER_SHADOW_BASE;
13379 +#endif
13380 +
13381 + return copy_user_generic(dst, (__force_kernel const void *)src, size);
13382 }
13383
13384 -static __must_check __always_inline int
13385 -__copy_to_user_inatomic(void __user *dst, const void *src, unsigned size)
13386 +static __must_check __always_inline unsigned long
13387 +__copy_to_user_inatomic(void __user *dst, const void *src, unsigned long size)
13388 {
13389 - return copy_user_generic((__force void *)dst, src, size);
13390 + if (size > INT_MAX)
13391 + return size;
13392 +
13393 +#ifdef CONFIG_PAX_MEMORY_UDEREF
13394 + if (!__access_ok(VERIFY_WRITE, dst, size))
13395 + return size;
13396 +
13397 + if ((unsigned long)dst < PAX_USER_SHADOW_BASE)
13398 + dst += PAX_USER_SHADOW_BASE;
13399 +#endif
13400 +
13401 + return copy_user_generic((__force_kernel void *)dst, src, size);
13402 }
13403
13404 -extern long __copy_user_nocache(void *dst, const void __user *src,
13405 - unsigned size, int zerorest);
13406 +extern unsigned long __copy_user_nocache(void *dst, const void __user *src,
13407 + unsigned long size, int zerorest) __size_overflow(3);
13408
13409 -static inline int
13410 -__copy_from_user_nocache(void *dst, const void __user *src, unsigned size)
13411 +static inline unsigned long __copy_from_user_nocache(void *dst, const void __user *src, unsigned long size)
13412 {
13413 might_sleep();
13414 +
13415 + if (size > INT_MAX)
13416 + return size;
13417 +
13418 +#ifdef CONFIG_PAX_MEMORY_UDEREF
13419 + if (!__access_ok(VERIFY_READ, src, size))
13420 + return size;
13421 +#endif
13422 +
13423 return __copy_user_nocache(dst, src, size, 1);
13424 }
13425
13426 -static inline int
13427 -__copy_from_user_inatomic_nocache(void *dst, const void __user *src,
13428 - unsigned size)
13429 +static inline unsigned long __copy_from_user_inatomic_nocache(void *dst, const void __user *src,
13430 + unsigned long size)
13431 {
13432 + if (size > INT_MAX)
13433 + return size;
13434 +
13435 +#ifdef CONFIG_PAX_MEMORY_UDEREF
13436 + if (!__access_ok(VERIFY_READ, src, size))
13437 + return size;
13438 +#endif
13439 +
13440 return __copy_user_nocache(dst, src, size, 0);
13441 }
13442
13443 -unsigned long
13444 -copy_user_handle_tail(char *to, char *from, unsigned len, unsigned zerorest);
13445 +extern unsigned long
13446 +copy_user_handle_tail(char __user *to, char __user *from, unsigned long len, unsigned zerorest) __size_overflow(3);
13447
13448 #endif /* _ASM_X86_UACCESS_64_H */
13449 diff --git a/arch/x86/include/asm/vdso.h b/arch/x86/include/asm/vdso.h
13450 index bb05228..d763d5b 100644
13451 --- a/arch/x86/include/asm/vdso.h
13452 +++ b/arch/x86/include/asm/vdso.h
13453 @@ -11,7 +11,7 @@ extern const char VDSO32_PRELINK[];
13454 #define VDSO32_SYMBOL(base, name) \
13455 ({ \
13456 extern const char VDSO32_##name[]; \
13457 - (void *)(VDSO32_##name - VDSO32_PRELINK + (unsigned long)(base)); \
13458 + (void __user *)(VDSO32_##name - VDSO32_PRELINK + (unsigned long)(base)); \
13459 })
13460 #endif
13461
13462 diff --git a/arch/x86/include/asm/word-at-a-time.h b/arch/x86/include/asm/word-at-a-time.h
13463 index 5b238981..77fdd78 100644
13464 --- a/arch/x86/include/asm/word-at-a-time.h
13465 +++ b/arch/x86/include/asm/word-at-a-time.h
13466 @@ -11,7 +11,7 @@
13467 * and shift, for example.
13468 */
13469 struct word_at_a_time {
13470 - const unsigned long one_bits, high_bits;
13471 + unsigned long one_bits, high_bits;
13472 };
13473
13474 #define WORD_AT_A_TIME_CONSTANTS { REPEAT_BYTE(0x01), REPEAT_BYTE(0x80) }
13475 diff --git a/arch/x86/include/asm/x86_init.h b/arch/x86/include/asm/x86_init.h
13476 index c090af1..7e7bf16 100644
13477 --- a/arch/x86/include/asm/x86_init.h
13478 +++ b/arch/x86/include/asm/x86_init.h
13479 @@ -29,7 +29,7 @@ struct x86_init_mpparse {
13480 void (*mpc_oem_bus_info)(struct mpc_bus *m, char *name);
13481 void (*find_smp_config)(void);
13482 void (*get_smp_config)(unsigned int early);
13483 -};
13484 +} __no_const;
13485
13486 /**
13487 * struct x86_init_resources - platform specific resource related ops
13488 @@ -43,7 +43,7 @@ struct x86_init_resources {
13489 void (*probe_roms)(void);
13490 void (*reserve_resources)(void);
13491 char *(*memory_setup)(void);
13492 -};
13493 +} __no_const;
13494
13495 /**
13496 * struct x86_init_irqs - platform specific interrupt setup
13497 @@ -56,7 +56,7 @@ struct x86_init_irqs {
13498 void (*pre_vector_init)(void);
13499 void (*intr_init)(void);
13500 void (*trap_init)(void);
13501 -};
13502 +} __no_const;
13503
13504 /**
13505 * struct x86_init_oem - oem platform specific customizing functions
13506 @@ -66,7 +66,7 @@ struct x86_init_irqs {
13507 struct x86_init_oem {
13508 void (*arch_setup)(void);
13509 void (*banner)(void);
13510 -};
13511 +} __no_const;
13512
13513 /**
13514 * struct x86_init_mapping - platform specific initial kernel pagetable setup
13515 @@ -77,7 +77,7 @@ struct x86_init_oem {
13516 */
13517 struct x86_init_mapping {
13518 void (*pagetable_reserve)(u64 start, u64 end);
13519 -};
13520 +} __no_const;
13521
13522 /**
13523 * struct x86_init_paging - platform specific paging functions
13524 @@ -87,7 +87,7 @@ struct x86_init_mapping {
13525 struct x86_init_paging {
13526 void (*pagetable_setup_start)(pgd_t *base);
13527 void (*pagetable_setup_done)(pgd_t *base);
13528 -};
13529 +} __no_const;
13530
13531 /**
13532 * struct x86_init_timers - platform specific timer setup
13533 @@ -102,7 +102,7 @@ struct x86_init_timers {
13534 void (*tsc_pre_init)(void);
13535 void (*timer_init)(void);
13536 void (*wallclock_init)(void);
13537 -};
13538 +} __no_const;
13539
13540 /**
13541 * struct x86_init_iommu - platform specific iommu setup
13542 @@ -110,7 +110,7 @@ struct x86_init_timers {
13543 */
13544 struct x86_init_iommu {
13545 int (*iommu_init)(void);
13546 -};
13547 +} __no_const;
13548
13549 /**
13550 * struct x86_init_pci - platform specific pci init functions
13551 @@ -124,7 +124,7 @@ struct x86_init_pci {
13552 int (*init)(void);
13553 void (*init_irq)(void);
13554 void (*fixup_irqs)(void);
13555 -};
13556 +} __no_const;
13557
13558 /**
13559 * struct x86_init_ops - functions for platform specific setup
13560 @@ -140,7 +140,7 @@ struct x86_init_ops {
13561 struct x86_init_timers timers;
13562 struct x86_init_iommu iommu;
13563 struct x86_init_pci pci;
13564 -};
13565 +} __no_const;
13566
13567 /**
13568 * struct x86_cpuinit_ops - platform specific cpu hotplug setups
13569 @@ -151,7 +151,7 @@ struct x86_cpuinit_ops {
13570 void (*setup_percpu_clockev)(void);
13571 void (*early_percpu_clock_init)(void);
13572 void (*fixup_cpu_id)(struct cpuinfo_x86 *c, int node);
13573 -};
13574 +} __no_const;
13575
13576 /**
13577 * struct x86_platform_ops - platform specific runtime functions
13578 @@ -177,7 +177,7 @@ struct x86_platform_ops {
13579 int (*i8042_detect)(void);
13580 void (*save_sched_clock_state)(void);
13581 void (*restore_sched_clock_state)(void);
13582 -};
13583 +} __no_const;
13584
13585 struct pci_dev;
13586
13587 @@ -186,14 +186,14 @@ struct x86_msi_ops {
13588 void (*teardown_msi_irq)(unsigned int irq);
13589 void (*teardown_msi_irqs)(struct pci_dev *dev);
13590 void (*restore_msi_irqs)(struct pci_dev *dev, int irq);
13591 -};
13592 +} __no_const;
13593
13594 struct x86_io_apic_ops {
13595 void (*init) (void);
13596 unsigned int (*read) (unsigned int apic, unsigned int reg);
13597 void (*write) (unsigned int apic, unsigned int reg, unsigned int value);
13598 void (*modify)(unsigned int apic, unsigned int reg, unsigned int value);
13599 -};
13600 +} __no_const;
13601
13602 extern struct x86_init_ops x86_init;
13603 extern struct x86_cpuinit_ops x86_cpuinit;
13604 diff --git a/arch/x86/include/asm/xsave.h b/arch/x86/include/asm/xsave.h
13605 index 8a1b6f9..a29c4e4 100644
13606 --- a/arch/x86/include/asm/xsave.h
13607 +++ b/arch/x86/include/asm/xsave.h
13608 @@ -65,6 +65,11 @@ static inline int xsave_user(struct xsave_struct __user *buf)
13609 {
13610 int err;
13611
13612 +#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
13613 + if ((unsigned long)buf < PAX_USER_SHADOW_BASE)
13614 + buf = (struct xsave_struct __user *)((void __user*)buf + PAX_USER_SHADOW_BASE);
13615 +#endif
13616 +
13617 /*
13618 * Clear the xsave header first, so that reserved fields are
13619 * initialized to zero.
13620 @@ -93,10 +98,15 @@ static inline int xsave_user(struct xsave_struct __user *buf)
13621 static inline int xrestore_user(struct xsave_struct __user *buf, u64 mask)
13622 {
13623 int err;
13624 - struct xsave_struct *xstate = ((__force struct xsave_struct *)buf);
13625 + struct xsave_struct *xstate = ((__force_kernel struct xsave_struct *)buf);
13626 u32 lmask = mask;
13627 u32 hmask = mask >> 32;
13628
13629 +#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
13630 + if ((unsigned long)xstate < PAX_USER_SHADOW_BASE)
13631 + xstate = (struct xsave_struct *)((void *)xstate + PAX_USER_SHADOW_BASE);
13632 +#endif
13633 +
13634 __asm__ __volatile__("1: .byte " REX_PREFIX "0x0f,0xae,0x2f\n"
13635 "2:\n"
13636 ".section .fixup,\"ax\"\n"
13637 diff --git a/arch/x86/kernel/acpi/sleep.c b/arch/x86/kernel/acpi/sleep.c
13638 index 95bf99de..de9235c 100644
13639 --- a/arch/x86/kernel/acpi/sleep.c
13640 +++ b/arch/x86/kernel/acpi/sleep.c
13641 @@ -73,8 +73,12 @@ int acpi_suspend_lowlevel(void)
13642 #else /* CONFIG_64BIT */
13643 #ifdef CONFIG_SMP
13644 stack_start = (unsigned long)temp_stack + sizeof(temp_stack);
13645 +
13646 + pax_open_kernel();
13647 early_gdt_descr.address =
13648 (unsigned long)get_cpu_gdt_table(smp_processor_id());
13649 + pax_close_kernel();
13650 +
13651 initial_gs = per_cpu_offset(smp_processor_id());
13652 #endif
13653 initial_code = (unsigned long)wakeup_long64;
13654 diff --git a/arch/x86/kernel/acpi/wakeup_32.S b/arch/x86/kernel/acpi/wakeup_32.S
13655 index 7261083..5c12053 100644
13656 --- a/arch/x86/kernel/acpi/wakeup_32.S
13657 +++ b/arch/x86/kernel/acpi/wakeup_32.S
13658 @@ -30,13 +30,11 @@ wakeup_pmode_return:
13659 # and restore the stack ... but you need gdt for this to work
13660 movl saved_context_esp, %esp
13661
13662 - movl %cs:saved_magic, %eax
13663 - cmpl $0x12345678, %eax
13664 + cmpl $0x12345678, saved_magic
13665 jne bogus_magic
13666
13667 # jump to place where we left off
13668 - movl saved_eip, %eax
13669 - jmp *%eax
13670 + jmp *(saved_eip)
13671
13672 bogus_magic:
13673 jmp bogus_magic
13674 diff --git a/arch/x86/kernel/alternative.c b/arch/x86/kernel/alternative.c
13675 index 73ef56c..0238021 100644
13676 --- a/arch/x86/kernel/alternative.c
13677 +++ b/arch/x86/kernel/alternative.c
13678 @@ -276,6 +276,13 @@ void __init_or_module apply_alternatives(struct alt_instr *start,
13679 */
13680 for (a = start; a < end; a++) {
13681 instr = (u8 *)&a->instr_offset + a->instr_offset;
13682 +
13683 +#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
13684 + instr += ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR;
13685 + if (instr < (u8 *)_text || (u8 *)_einittext <= instr)
13686 + instr -= ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR;
13687 +#endif
13688 +
13689 replacement = (u8 *)&a->repl_offset + a->repl_offset;
13690 BUG_ON(a->replacementlen > a->instrlen);
13691 BUG_ON(a->instrlen > sizeof(insnbuf));
13692 @@ -307,10 +314,16 @@ static void alternatives_smp_lock(const s32 *start, const s32 *end,
13693 for (poff = start; poff < end; poff++) {
13694 u8 *ptr = (u8 *)poff + *poff;
13695
13696 +#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
13697 + ptr += ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR;
13698 + if (ptr < (u8 *)_text || (u8 *)_einittext <= ptr)
13699 + ptr -= ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR;
13700 +#endif
13701 +
13702 if (!*poff || ptr < text || ptr >= text_end)
13703 continue;
13704 /* turn DS segment override prefix into lock prefix */
13705 - if (*ptr == 0x3e)
13706 + if (*ktla_ktva(ptr) == 0x3e)
13707 text_poke(ptr, ((unsigned char []){0xf0}), 1);
13708 };
13709 mutex_unlock(&text_mutex);
13710 @@ -328,10 +341,16 @@ static void alternatives_smp_unlock(const s32 *start, const s32 *end,
13711 for (poff = start; poff < end; poff++) {
13712 u8 *ptr = (u8 *)poff + *poff;
13713
13714 +#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
13715 + ptr += ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR;
13716 + if (ptr < (u8 *)_text || (u8 *)_einittext <= ptr)
13717 + ptr -= ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR;
13718 +#endif
13719 +
13720 if (!*poff || ptr < text || ptr >= text_end)
13721 continue;
13722 /* turn lock prefix into DS segment override prefix */
13723 - if (*ptr == 0xf0)
13724 + if (*ktla_ktva(ptr) == 0xf0)
13725 text_poke(ptr, ((unsigned char []){0x3E}), 1);
13726 };
13727 mutex_unlock(&text_mutex);
13728 @@ -500,7 +519,7 @@ void __init_or_module apply_paravirt(struct paravirt_patch_site *start,
13729
13730 BUG_ON(p->len > MAX_PATCH_LEN);
13731 /* prep the buffer with the original instructions */
13732 - memcpy(insnbuf, p->instr, p->len);
13733 + memcpy(insnbuf, ktla_ktva(p->instr), p->len);
13734 used = pv_init_ops.patch(p->instrtype, p->clobbers, insnbuf,
13735 (unsigned long)p->instr, p->len);
13736
13737 @@ -568,7 +587,7 @@ void __init alternative_instructions(void)
13738 if (smp_alt_once)
13739 free_init_pages("SMP alternatives",
13740 (unsigned long)__smp_locks,
13741 - (unsigned long)__smp_locks_end);
13742 + PAGE_ALIGN((unsigned long)__smp_locks_end));
13743
13744 restart_nmi();
13745 }
13746 @@ -585,13 +604,17 @@ void __init alternative_instructions(void)
13747 * instructions. And on the local CPU you need to be protected again NMI or MCE
13748 * handlers seeing an inconsistent instruction while you patch.
13749 */
13750 -void *__init_or_module text_poke_early(void *addr, const void *opcode,
13751 +void *__kprobes text_poke_early(void *addr, const void *opcode,
13752 size_t len)
13753 {
13754 unsigned long flags;
13755 local_irq_save(flags);
13756 - memcpy(addr, opcode, len);
13757 +
13758 + pax_open_kernel();
13759 + memcpy(ktla_ktva(addr), opcode, len);
13760 sync_core();
13761 + pax_close_kernel();
13762 +
13763 local_irq_restore(flags);
13764 /* Could also do a CLFLUSH here to speed up CPU recovery; but
13765 that causes hangs on some VIA CPUs. */
13766 @@ -613,36 +636,22 @@ void *__init_or_module text_poke_early(void *addr, const void *opcode,
13767 */
13768 void *__kprobes text_poke(void *addr, const void *opcode, size_t len)
13769 {
13770 - unsigned long flags;
13771 - char *vaddr;
13772 + unsigned char *vaddr = ktla_ktva(addr);
13773 struct page *pages[2];
13774 - int i;
13775 + size_t i;
13776
13777 if (!core_kernel_text((unsigned long)addr)) {
13778 - pages[0] = vmalloc_to_page(addr);
13779 - pages[1] = vmalloc_to_page(addr + PAGE_SIZE);
13780 + pages[0] = vmalloc_to_page(vaddr);
13781 + pages[1] = vmalloc_to_page(vaddr + PAGE_SIZE);
13782 } else {
13783 - pages[0] = virt_to_page(addr);
13784 + pages[0] = virt_to_page(vaddr);
13785 WARN_ON(!PageReserved(pages[0]));
13786 - pages[1] = virt_to_page(addr + PAGE_SIZE);
13787 + pages[1] = virt_to_page(vaddr + PAGE_SIZE);
13788 }
13789 BUG_ON(!pages[0]);
13790 - local_irq_save(flags);
13791 - set_fixmap(FIX_TEXT_POKE0, page_to_phys(pages[0]));
13792 - if (pages[1])
13793 - set_fixmap(FIX_TEXT_POKE1, page_to_phys(pages[1]));
13794 - vaddr = (char *)fix_to_virt(FIX_TEXT_POKE0);
13795 - memcpy(&vaddr[(unsigned long)addr & ~PAGE_MASK], opcode, len);
13796 - clear_fixmap(FIX_TEXT_POKE0);
13797 - if (pages[1])
13798 - clear_fixmap(FIX_TEXT_POKE1);
13799 - local_flush_tlb();
13800 - sync_core();
13801 - /* Could also do a CLFLUSH here to speed up CPU recovery; but
13802 - that causes hangs on some VIA CPUs. */
13803 + text_poke_early(addr, opcode, len);
13804 for (i = 0; i < len; i++)
13805 - BUG_ON(((char *)addr)[i] != ((char *)opcode)[i]);
13806 - local_irq_restore(flags);
13807 + BUG_ON((vaddr)[i] != ((const unsigned char *)opcode)[i]);
13808 return addr;
13809 }
13810
13811 diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c
13812 index 39a222e..85a7767 100644
13813 --- a/arch/x86/kernel/apic/apic.c
13814 +++ b/arch/x86/kernel/apic/apic.c
13815 @@ -185,7 +185,7 @@ int first_system_vector = 0xfe;
13816 /*
13817 * Debug level, exported for io_apic.c
13818 */
13819 -unsigned int apic_verbosity;
13820 +int apic_verbosity;
13821
13822 int pic_mode;
13823
13824 @@ -1923,7 +1923,7 @@ void smp_error_interrupt(struct pt_regs *regs)
13825 apic_write(APIC_ESR, 0);
13826 v1 = apic_read(APIC_ESR);
13827 ack_APIC_irq();
13828 - atomic_inc(&irq_err_count);
13829 + atomic_inc_unchecked(&irq_err_count);
13830
13831 apic_printk(APIC_DEBUG, KERN_DEBUG "APIC error on CPU%d: %02x(%02x)",
13832 smp_processor_id(), v0 , v1);
13833 diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
13834 index 5f0ff59..f9e01bc 100644
13835 --- a/arch/x86/kernel/apic/io_apic.c
13836 +++ b/arch/x86/kernel/apic/io_apic.c
13837 @@ -1084,7 +1084,7 @@ int IO_APIC_get_PCI_irq_vector(int bus, int slot, int pin,
13838 }
13839 EXPORT_SYMBOL(IO_APIC_get_PCI_irq_vector);
13840
13841 -void lock_vector_lock(void)
13842 +void lock_vector_lock(void) __acquires(vector_lock)
13843 {
13844 /* Used to the online set of cpus does not change
13845 * during assign_irq_vector.
13846 @@ -1092,7 +1092,7 @@ void lock_vector_lock(void)
13847 raw_spin_lock(&vector_lock);
13848 }
13849
13850 -void unlock_vector_lock(void)
13851 +void unlock_vector_lock(void) __releases(vector_lock)
13852 {
13853 raw_spin_unlock(&vector_lock);
13854 }
13855 @@ -2369,7 +2369,7 @@ static void ack_apic_edge(struct irq_data *data)
13856 ack_APIC_irq();
13857 }
13858
13859 -atomic_t irq_mis_count;
13860 +atomic_unchecked_t irq_mis_count;
13861
13862 #ifdef CONFIG_GENERIC_PENDING_IRQ
13863 static bool io_apic_level_ack_pending(struct irq_cfg *cfg)
13864 @@ -2510,7 +2510,7 @@ static void ack_apic_level(struct irq_data *data)
13865 * at the cpu.
13866 */
13867 if (!(v & (1 << (i & 0x1f)))) {
13868 - atomic_inc(&irq_mis_count);
13869 + atomic_inc_unchecked(&irq_mis_count);
13870
13871 eoi_ioapic_irq(irq, cfg);
13872 }
13873 diff --git a/arch/x86/kernel/apm_32.c b/arch/x86/kernel/apm_32.c
13874 index 07b0c0d..1df6f42 100644
13875 --- a/arch/x86/kernel/apm_32.c
13876 +++ b/arch/x86/kernel/apm_32.c
13877 @@ -410,7 +410,7 @@ static DEFINE_MUTEX(apm_mutex);
13878 * This is for buggy BIOS's that refer to (real mode) segment 0x40
13879 * even though they are called in protected mode.
13880 */
13881 -static struct desc_struct bad_bios_desc = GDT_ENTRY_INIT(0x4092,
13882 +static const struct desc_struct bad_bios_desc = GDT_ENTRY_INIT(0x4093,
13883 (unsigned long)__va(0x400UL), PAGE_SIZE - 0x400 - 1);
13884
13885 static const char driver_version[] = "1.16ac"; /* no spaces */
13886 @@ -588,7 +588,10 @@ static long __apm_bios_call(void *_call)
13887 BUG_ON(cpu != 0);
13888 gdt = get_cpu_gdt_table(cpu);
13889 save_desc_40 = gdt[0x40 / 8];
13890 +
13891 + pax_open_kernel();
13892 gdt[0x40 / 8] = bad_bios_desc;
13893 + pax_close_kernel();
13894
13895 apm_irq_save(flags);
13896 APM_DO_SAVE_SEGS;
13897 @@ -597,7 +600,11 @@ static long __apm_bios_call(void *_call)
13898 &call->esi);
13899 APM_DO_RESTORE_SEGS;
13900 apm_irq_restore(flags);
13901 +
13902 + pax_open_kernel();
13903 gdt[0x40 / 8] = save_desc_40;
13904 + pax_close_kernel();
13905 +
13906 put_cpu();
13907
13908 return call->eax & 0xff;
13909 @@ -664,7 +671,10 @@ static long __apm_bios_call_simple(void *_call)
13910 BUG_ON(cpu != 0);
13911 gdt = get_cpu_gdt_table(cpu);
13912 save_desc_40 = gdt[0x40 / 8];
13913 +
13914 + pax_open_kernel();
13915 gdt[0x40 / 8] = bad_bios_desc;
13916 + pax_close_kernel();
13917
13918 apm_irq_save(flags);
13919 APM_DO_SAVE_SEGS;
13920 @@ -672,7 +682,11 @@ static long __apm_bios_call_simple(void *_call)
13921 &call->eax);
13922 APM_DO_RESTORE_SEGS;
13923 apm_irq_restore(flags);
13924 +
13925 + pax_open_kernel();
13926 gdt[0x40 / 8] = save_desc_40;
13927 + pax_close_kernel();
13928 +
13929 put_cpu();
13930 return error;
13931 }
13932 @@ -2345,12 +2359,15 @@ static int __init apm_init(void)
13933 * code to that CPU.
13934 */
13935 gdt = get_cpu_gdt_table(0);
13936 +
13937 + pax_open_kernel();
13938 set_desc_base(&gdt[APM_CS >> 3],
13939 (unsigned long)__va((unsigned long)apm_info.bios.cseg << 4));
13940 set_desc_base(&gdt[APM_CS_16 >> 3],
13941 (unsigned long)__va((unsigned long)apm_info.bios.cseg_16 << 4));
13942 set_desc_base(&gdt[APM_DS >> 3],
13943 (unsigned long)__va((unsigned long)apm_info.bios.dseg << 4));
13944 + pax_close_kernel();
13945
13946 proc_create("apm", 0, NULL, &apm_file_ops);
13947
13948 diff --git a/arch/x86/kernel/asm-offsets.c b/arch/x86/kernel/asm-offsets.c
13949 index 68de2dc..1f3c720 100644
13950 --- a/arch/x86/kernel/asm-offsets.c
13951 +++ b/arch/x86/kernel/asm-offsets.c
13952 @@ -33,6 +33,8 @@ void common(void) {
13953 OFFSET(TI_status, thread_info, status);
13954 OFFSET(TI_addr_limit, thread_info, addr_limit);
13955 OFFSET(TI_preempt_count, thread_info, preempt_count);
13956 + OFFSET(TI_lowest_stack, thread_info, lowest_stack);
13957 + DEFINE(TI_task_thread_sp0, offsetof(struct task_struct, thread.sp0) - offsetof(struct task_struct, tinfo));
13958
13959 BLANK();
13960 OFFSET(crypto_tfm_ctx_offset, crypto_tfm, __crt_ctx);
13961 @@ -53,8 +55,26 @@ void common(void) {
13962 OFFSET(PV_CPU_irq_enable_sysexit, pv_cpu_ops, irq_enable_sysexit);
13963 OFFSET(PV_CPU_read_cr0, pv_cpu_ops, read_cr0);
13964 OFFSET(PV_MMU_read_cr2, pv_mmu_ops, read_cr2);
13965 +
13966 +#ifdef CONFIG_PAX_KERNEXEC
13967 + OFFSET(PV_CPU_write_cr0, pv_cpu_ops, write_cr0);
13968 #endif
13969
13970 +#ifdef CONFIG_PAX_MEMORY_UDEREF
13971 + OFFSET(PV_MMU_read_cr3, pv_mmu_ops, read_cr3);
13972 + OFFSET(PV_MMU_write_cr3, pv_mmu_ops, write_cr3);
13973 +#ifdef CONFIG_X86_64
13974 + OFFSET(PV_MMU_set_pgd_batched, pv_mmu_ops, set_pgd_batched);
13975 +#endif
13976 +#endif
13977 +
13978 +#endif
13979 +
13980 + BLANK();
13981 + DEFINE(PAGE_SIZE_asm, PAGE_SIZE);
13982 + DEFINE(PAGE_SHIFT_asm, PAGE_SHIFT);
13983 + DEFINE(THREAD_SIZE_asm, THREAD_SIZE);
13984 +
13985 #ifdef CONFIG_XEN
13986 BLANK();
13987 OFFSET(XEN_vcpu_info_mask, vcpu_info, evtchn_upcall_mask);
13988 diff --git a/arch/x86/kernel/asm-offsets_64.c b/arch/x86/kernel/asm-offsets_64.c
13989 index 1b4754f..fbb4227 100644
13990 --- a/arch/x86/kernel/asm-offsets_64.c
13991 +++ b/arch/x86/kernel/asm-offsets_64.c
13992 @@ -76,6 +76,7 @@ int main(void)
13993 BLANK();
13994 #undef ENTRY
13995
13996 + DEFINE(TSS_size, sizeof(struct tss_struct));
13997 OFFSET(TSS_ist, tss_struct, x86_tss.ist);
13998 BLANK();
13999
14000 diff --git a/arch/x86/kernel/cpu/Makefile b/arch/x86/kernel/cpu/Makefile
14001 index 6ab6aa2..8f71507 100644
14002 --- a/arch/x86/kernel/cpu/Makefile
14003 +++ b/arch/x86/kernel/cpu/Makefile
14004 @@ -8,10 +8,6 @@ CFLAGS_REMOVE_common.o = -pg
14005 CFLAGS_REMOVE_perf_event.o = -pg
14006 endif
14007
14008 -# Make sure load_percpu_segment has no stackprotector
14009 -nostackp := $(call cc-option, -fno-stack-protector)
14010 -CFLAGS_common.o := $(nostackp)
14011 -
14012 obj-y := intel_cacheinfo.o scattered.o topology.o
14013 obj-y += proc.o capflags.o powerflags.o common.o
14014 obj-y += vmware.o hypervisor.o sched.o mshyperv.o
14015 diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
14016 index 146bb62..ac9c74a 100644
14017 --- a/arch/x86/kernel/cpu/amd.c
14018 +++ b/arch/x86/kernel/cpu/amd.c
14019 @@ -691,7 +691,7 @@ static unsigned int __cpuinit amd_size_cache(struct cpuinfo_x86 *c,
14020 unsigned int size)
14021 {
14022 /* AMD errata T13 (order #21922) */
14023 - if ((c->x86 == 6)) {
14024 + if (c->x86 == 6) {
14025 /* Duron Rev A0 */
14026 if (c->x86_model == 3 && c->x86_mask == 0)
14027 size = 64;
14028 diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
14029 index 6b9333b..4c3083a 100644
14030 --- a/arch/x86/kernel/cpu/common.c
14031 +++ b/arch/x86/kernel/cpu/common.c
14032 @@ -86,60 +86,6 @@ static const struct cpu_dev __cpuinitconst default_cpu = {
14033
14034 static const struct cpu_dev *this_cpu __cpuinitdata = &default_cpu;
14035
14036 -DEFINE_PER_CPU_PAGE_ALIGNED(struct gdt_page, gdt_page) = { .gdt = {
14037 -#ifdef CONFIG_X86_64
14038 - /*
14039 - * We need valid kernel segments for data and code in long mode too
14040 - * IRET will check the segment types kkeil 2000/10/28
14041 - * Also sysret mandates a special GDT layout
14042 - *
14043 - * TLS descriptors are currently at a different place compared to i386.
14044 - * Hopefully nobody expects them at a fixed place (Wine?)
14045 - */
14046 - [GDT_ENTRY_KERNEL32_CS] = GDT_ENTRY_INIT(0xc09b, 0, 0xfffff),
14047 - [GDT_ENTRY_KERNEL_CS] = GDT_ENTRY_INIT(0xa09b, 0, 0xfffff),
14048 - [GDT_ENTRY_KERNEL_DS] = GDT_ENTRY_INIT(0xc093, 0, 0xfffff),
14049 - [GDT_ENTRY_DEFAULT_USER32_CS] = GDT_ENTRY_INIT(0xc0fb, 0, 0xfffff),
14050 - [GDT_ENTRY_DEFAULT_USER_DS] = GDT_ENTRY_INIT(0xc0f3, 0, 0xfffff),
14051 - [GDT_ENTRY_DEFAULT_USER_CS] = GDT_ENTRY_INIT(0xa0fb, 0, 0xfffff),
14052 -#else
14053 - [GDT_ENTRY_KERNEL_CS] = GDT_ENTRY_INIT(0xc09a, 0, 0xfffff),
14054 - [GDT_ENTRY_KERNEL_DS] = GDT_ENTRY_INIT(0xc092, 0, 0xfffff),
14055 - [GDT_ENTRY_DEFAULT_USER_CS] = GDT_ENTRY_INIT(0xc0fa, 0, 0xfffff),
14056 - [GDT_ENTRY_DEFAULT_USER_DS] = GDT_ENTRY_INIT(0xc0f2, 0, 0xfffff),
14057 - /*
14058 - * Segments used for calling PnP BIOS have byte granularity.
14059 - * They code segments and data segments have fixed 64k limits,
14060 - * the transfer segment sizes are set at run time.
14061 - */
14062 - /* 32-bit code */
14063 - [GDT_ENTRY_PNPBIOS_CS32] = GDT_ENTRY_INIT(0x409a, 0, 0xffff),
14064 - /* 16-bit code */
14065 - [GDT_ENTRY_PNPBIOS_CS16] = GDT_ENTRY_INIT(0x009a, 0, 0xffff),
14066 - /* 16-bit data */
14067 - [GDT_ENTRY_PNPBIOS_DS] = GDT_ENTRY_INIT(0x0092, 0, 0xffff),
14068 - /* 16-bit data */
14069 - [GDT_ENTRY_PNPBIOS_TS1] = GDT_ENTRY_INIT(0x0092, 0, 0),
14070 - /* 16-bit data */
14071 - [GDT_ENTRY_PNPBIOS_TS2] = GDT_ENTRY_INIT(0x0092, 0, 0),
14072 - /*
14073 - * The APM segments have byte granularity and their bases
14074 - * are set at run time. All have 64k limits.
14075 - */
14076 - /* 32-bit code */
14077 - [GDT_ENTRY_APMBIOS_BASE] = GDT_ENTRY_INIT(0x409a, 0, 0xffff),
14078 - /* 16-bit code */
14079 - [GDT_ENTRY_APMBIOS_BASE+1] = GDT_ENTRY_INIT(0x009a, 0, 0xffff),
14080 - /* data */
14081 - [GDT_ENTRY_APMBIOS_BASE+2] = GDT_ENTRY_INIT(0x4092, 0, 0xffff),
14082 -
14083 - [GDT_ENTRY_ESPFIX_SS] = GDT_ENTRY_INIT(0xc092, 0, 0xfffff),
14084 - [GDT_ENTRY_PERCPU] = GDT_ENTRY_INIT(0xc092, 0, 0xfffff),
14085 - GDT_STACK_CANARY_INIT
14086 -#endif
14087 -} };
14088 -EXPORT_PER_CPU_SYMBOL_GPL(gdt_page);
14089 -
14090 static int __init x86_xsave_setup(char *s)
14091 {
14092 setup_clear_cpu_cap(X86_FEATURE_XSAVE);
14093 @@ -374,7 +320,7 @@ void switch_to_new_gdt(int cpu)
14094 {
14095 struct desc_ptr gdt_descr;
14096
14097 - gdt_descr.address = (long)get_cpu_gdt_table(cpu);
14098 + gdt_descr.address = (unsigned long)get_cpu_gdt_table(cpu);
14099 gdt_descr.size = GDT_SIZE - 1;
14100 load_gdt(&gdt_descr);
14101 /* Reload the per-cpu base */
14102 @@ -841,6 +787,10 @@ static void __cpuinit identify_cpu(struct cpuinfo_x86 *c)
14103 /* Filter out anything that depends on CPUID levels we don't have */
14104 filter_cpuid_features(c, true);
14105
14106 +#if defined(CONFIG_X86_32) && (defined(CONFIG_PAX_SEGMEXEC) || defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF))
14107 + setup_clear_cpu_cap(X86_FEATURE_SEP);
14108 +#endif
14109 +
14110 /* If the model name is still unset, do table lookup. */
14111 if (!c->x86_model_id[0]) {
14112 const char *p;
14113 @@ -1021,10 +971,12 @@ static __init int setup_disablecpuid(char *arg)
14114 }
14115 __setup("clearcpuid=", setup_disablecpuid);
14116
14117 +DEFINE_PER_CPU(struct thread_info *, current_tinfo) = &init_task.tinfo;
14118 +EXPORT_PER_CPU_SYMBOL(current_tinfo);
14119 +
14120 #ifdef CONFIG_X86_64
14121 struct desc_ptr idt_descr = { NR_VECTORS * 16 - 1, (unsigned long) idt_table };
14122 -struct desc_ptr nmi_idt_descr = { NR_VECTORS * 16 - 1,
14123 - (unsigned long) nmi_idt_table };
14124 +struct desc_ptr nmi_idt_descr = { NR_VECTORS * 16 - 1, (unsigned long) nmi_idt_table };
14125
14126 DEFINE_PER_CPU_FIRST(union irq_stack_union,
14127 irq_stack_union) __aligned(PAGE_SIZE);
14128 @@ -1038,7 +990,7 @@ DEFINE_PER_CPU(struct task_struct *, current_task) ____cacheline_aligned =
14129 EXPORT_PER_CPU_SYMBOL(current_task);
14130
14131 DEFINE_PER_CPU(unsigned long, kernel_stack) =
14132 - (unsigned long)&init_thread_union - KERNEL_STACK_OFFSET + THREAD_SIZE;
14133 + (unsigned long)&init_thread_union - 16 + THREAD_SIZE;
14134 EXPORT_PER_CPU_SYMBOL(kernel_stack);
14135
14136 DEFINE_PER_CPU(char *, irq_stack_ptr) =
14137 @@ -1132,7 +1084,7 @@ struct pt_regs * __cpuinit idle_regs(struct pt_regs *regs)
14138 {
14139 memset(regs, 0, sizeof(struct pt_regs));
14140 regs->fs = __KERNEL_PERCPU;
14141 - regs->gs = __KERNEL_STACK_CANARY;
14142 + savesegment(gs, regs->gs);
14143
14144 return regs;
14145 }
14146 @@ -1187,7 +1139,7 @@ void __cpuinit cpu_init(void)
14147 int i;
14148
14149 cpu = stack_smp_processor_id();
14150 - t = &per_cpu(init_tss, cpu);
14151 + t = init_tss + cpu;
14152 oist = &per_cpu(orig_ist, cpu);
14153
14154 #ifdef CONFIG_NUMA
14155 @@ -1213,7 +1165,7 @@ void __cpuinit cpu_init(void)
14156 switch_to_new_gdt(cpu);
14157 loadsegment(fs, 0);
14158
14159 - load_idt((const struct desc_ptr *)&idt_descr);
14160 + load_idt(&idt_descr);
14161
14162 memset(me->thread.tls_array, 0, GDT_ENTRY_TLS_ENTRIES * 8);
14163 syscall_init();
14164 @@ -1222,7 +1174,6 @@ void __cpuinit cpu_init(void)
14165 wrmsrl(MSR_KERNEL_GS_BASE, 0);
14166 barrier();
14167
14168 - x86_configure_nx();
14169 if (cpu != 0)
14170 enable_x2apic();
14171
14172 @@ -1278,7 +1229,7 @@ void __cpuinit cpu_init(void)
14173 {
14174 int cpu = smp_processor_id();
14175 struct task_struct *curr = current;
14176 - struct tss_struct *t = &per_cpu(init_tss, cpu);
14177 + struct tss_struct *t = init_tss + cpu;
14178 struct thread_struct *thread = &curr->thread;
14179
14180 if (cpumask_test_and_set_cpu(cpu, cpu_initialized_mask)) {
14181 diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c
14182 index 3e6ff6c..54b4992 100644
14183 --- a/arch/x86/kernel/cpu/intel.c
14184 +++ b/arch/x86/kernel/cpu/intel.c
14185 @@ -174,7 +174,7 @@ static void __cpuinit trap_init_f00f_bug(void)
14186 * Update the IDT descriptor and reload the IDT so that
14187 * it uses the read-only mapped virtual address.
14188 */
14189 - idt_descr.address = fix_to_virt(FIX_F00F_IDT);
14190 + idt_descr.address = (struct desc_struct *)fix_to_virt(FIX_F00F_IDT);
14191 load_idt(&idt_descr);
14192 }
14193 #endif
14194 diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c
14195 index c46ed49..5dc0a53 100644
14196 --- a/arch/x86/kernel/cpu/mcheck/mce.c
14197 +++ b/arch/x86/kernel/cpu/mcheck/mce.c
14198 @@ -42,6 +42,7 @@
14199 #include <asm/processor.h>
14200 #include <asm/mce.h>
14201 #include <asm/msr.h>
14202 +#include <asm/local.h>
14203
14204 #include "mce-internal.h"
14205
14206 @@ -250,7 +251,7 @@ static void print_mce(struct mce *m)
14207 !(m->mcgstatus & MCG_STATUS_EIPV) ? " !INEXACT!" : "",
14208 m->cs, m->ip);
14209
14210 - if (m->cs == __KERNEL_CS)
14211 + if (m->cs == __KERNEL_CS || m->cs == __KERNEXEC_KERNEL_CS)
14212 print_symbol("{%s}", m->ip);
14213 pr_cont("\n");
14214 }
14215 @@ -283,10 +284,10 @@ static void print_mce(struct mce *m)
14216
14217 #define PANIC_TIMEOUT 5 /* 5 seconds */
14218
14219 -static atomic_t mce_paniced;
14220 +static atomic_unchecked_t mce_paniced;
14221
14222 static int fake_panic;
14223 -static atomic_t mce_fake_paniced;
14224 +static atomic_unchecked_t mce_fake_paniced;
14225
14226 /* Panic in progress. Enable interrupts and wait for final IPI */
14227 static void wait_for_panic(void)
14228 @@ -310,7 +311,7 @@ static void mce_panic(char *msg, struct mce *final, char *exp)
14229 /*
14230 * Make sure only one CPU runs in machine check panic
14231 */
14232 - if (atomic_inc_return(&mce_paniced) > 1)
14233 + if (atomic_inc_return_unchecked(&mce_paniced) > 1)
14234 wait_for_panic();
14235 barrier();
14236
14237 @@ -318,7 +319,7 @@ static void mce_panic(char *msg, struct mce *final, char *exp)
14238 console_verbose();
14239 } else {
14240 /* Don't log too much for fake panic */
14241 - if (atomic_inc_return(&mce_fake_paniced) > 1)
14242 + if (atomic_inc_return_unchecked(&mce_fake_paniced) > 1)
14243 return;
14244 }
14245 /* First print corrected ones that are still unlogged */
14246 @@ -686,7 +687,7 @@ static int mce_timed_out(u64 *t)
14247 * might have been modified by someone else.
14248 */
14249 rmb();
14250 - if (atomic_read(&mce_paniced))
14251 + if (atomic_read_unchecked(&mce_paniced))
14252 wait_for_panic();
14253 if (!monarch_timeout)
14254 goto out;
14255 @@ -1581,7 +1582,7 @@ static void unexpected_machine_check(struct pt_regs *regs, long error_code)
14256 }
14257
14258 /* Call the installed machine check handler for this CPU setup. */
14259 -void (*machine_check_vector)(struct pt_regs *, long error_code) =
14260 +void (*machine_check_vector)(struct pt_regs *, long error_code) __read_only =
14261 unexpected_machine_check;
14262
14263 /*
14264 @@ -1604,7 +1605,9 @@ void __cpuinit mcheck_cpu_init(struct cpuinfo_x86 *c)
14265 return;
14266 }
14267
14268 + pax_open_kernel();
14269 machine_check_vector = do_machine_check;
14270 + pax_close_kernel();
14271
14272 __mcheck_cpu_init_generic();
14273 __mcheck_cpu_init_vendor(c);
14274 @@ -1618,7 +1621,7 @@ void __cpuinit mcheck_cpu_init(struct cpuinfo_x86 *c)
14275 */
14276
14277 static DEFINE_SPINLOCK(mce_chrdev_state_lock);
14278 -static int mce_chrdev_open_count; /* #times opened */
14279 +static local_t mce_chrdev_open_count; /* #times opened */
14280 static int mce_chrdev_open_exclu; /* already open exclusive? */
14281
14282 static int mce_chrdev_open(struct inode *inode, struct file *file)
14283 @@ -1626,7 +1629,7 @@ static int mce_chrdev_open(struct inode *inode, struct file *file)
14284 spin_lock(&mce_chrdev_state_lock);
14285
14286 if (mce_chrdev_open_exclu ||
14287 - (mce_chrdev_open_count && (file->f_flags & O_EXCL))) {
14288 + (local_read(&mce_chrdev_open_count) && (file->f_flags & O_EXCL))) {
14289 spin_unlock(&mce_chrdev_state_lock);
14290
14291 return -EBUSY;
14292 @@ -1634,7 +1637,7 @@ static int mce_chrdev_open(struct inode *inode, struct file *file)
14293
14294 if (file->f_flags & O_EXCL)
14295 mce_chrdev_open_exclu = 1;
14296 - mce_chrdev_open_count++;
14297 + local_inc(&mce_chrdev_open_count);
14298
14299 spin_unlock(&mce_chrdev_state_lock);
14300
14301 @@ -1645,7 +1648,7 @@ static int mce_chrdev_release(struct inode *inode, struct file *file)
14302 {
14303 spin_lock(&mce_chrdev_state_lock);
14304
14305 - mce_chrdev_open_count--;
14306 + local_dec(&mce_chrdev_open_count);
14307 mce_chrdev_open_exclu = 0;
14308
14309 spin_unlock(&mce_chrdev_state_lock);
14310 @@ -2370,7 +2373,7 @@ struct dentry *mce_get_debugfs_dir(void)
14311 static void mce_reset(void)
14312 {
14313 cpu_missing = 0;
14314 - atomic_set(&mce_fake_paniced, 0);
14315 + atomic_set_unchecked(&mce_fake_paniced, 0);
14316 atomic_set(&mce_executing, 0);
14317 atomic_set(&mce_callin, 0);
14318 atomic_set(&global_nwo, 0);
14319 diff --git a/arch/x86/kernel/cpu/mcheck/p5.c b/arch/x86/kernel/cpu/mcheck/p5.c
14320 index 2d5454c..51987eb 100644
14321 --- a/arch/x86/kernel/cpu/mcheck/p5.c
14322 +++ b/arch/x86/kernel/cpu/mcheck/p5.c
14323 @@ -11,6 +11,7 @@
14324 #include <asm/processor.h>
14325 #include <asm/mce.h>
14326 #include <asm/msr.h>
14327 +#include <asm/pgtable.h>
14328
14329 /* By default disabled */
14330 int mce_p5_enabled __read_mostly;
14331 @@ -49,7 +50,9 @@ void intel_p5_mcheck_init(struct cpuinfo_x86 *c)
14332 if (!cpu_has(c, X86_FEATURE_MCE))
14333 return;
14334
14335 + pax_open_kernel();
14336 machine_check_vector = pentium_machine_check;
14337 + pax_close_kernel();
14338 /* Make sure the vector pointer is visible before we enable MCEs: */
14339 wmb();
14340
14341 diff --git a/arch/x86/kernel/cpu/mcheck/winchip.c b/arch/x86/kernel/cpu/mcheck/winchip.c
14342 index 2d7998f..17c9de1 100644
14343 --- a/arch/x86/kernel/cpu/mcheck/winchip.c
14344 +++ b/arch/x86/kernel/cpu/mcheck/winchip.c
14345 @@ -10,6 +10,7 @@
14346 #include <asm/processor.h>
14347 #include <asm/mce.h>
14348 #include <asm/msr.h>
14349 +#include <asm/pgtable.h>
14350
14351 /* Machine check handler for WinChip C6: */
14352 static void winchip_machine_check(struct pt_regs *regs, long error_code)
14353 @@ -23,7 +24,9 @@ void winchip_mcheck_init(struct cpuinfo_x86 *c)
14354 {
14355 u32 lo, hi;
14356
14357 + pax_open_kernel();
14358 machine_check_vector = winchip_machine_check;
14359 + pax_close_kernel();
14360 /* Make sure the vector pointer is visible before we enable MCEs: */
14361 wmb();
14362
14363 diff --git a/arch/x86/kernel/cpu/mtrr/main.c b/arch/x86/kernel/cpu/mtrr/main.c
14364 index 6b96110..0da73eb 100644
14365 --- a/arch/x86/kernel/cpu/mtrr/main.c
14366 +++ b/arch/x86/kernel/cpu/mtrr/main.c
14367 @@ -62,7 +62,7 @@ static DEFINE_MUTEX(mtrr_mutex);
14368 u64 size_or_mask, size_and_mask;
14369 static bool mtrr_aps_delayed_init;
14370
14371 -static const struct mtrr_ops *mtrr_ops[X86_VENDOR_NUM];
14372 +static const struct mtrr_ops *mtrr_ops[X86_VENDOR_NUM] __read_only;
14373
14374 const struct mtrr_ops *mtrr_if;
14375
14376 diff --git a/arch/x86/kernel/cpu/mtrr/mtrr.h b/arch/x86/kernel/cpu/mtrr/mtrr.h
14377 index df5e41f..816c719 100644
14378 --- a/arch/x86/kernel/cpu/mtrr/mtrr.h
14379 +++ b/arch/x86/kernel/cpu/mtrr/mtrr.h
14380 @@ -25,7 +25,7 @@ struct mtrr_ops {
14381 int (*validate_add_page)(unsigned long base, unsigned long size,
14382 unsigned int type);
14383 int (*have_wrcomb)(void);
14384 -};
14385 +} __do_const;
14386
14387 extern int generic_get_free_region(unsigned long base, unsigned long size,
14388 int replace_reg);
14389 diff --git a/arch/x86/kernel/cpu/perf_event.c b/arch/x86/kernel/cpu/perf_event.c
14390 index c4706cf..264b0f7 100644
14391 --- a/arch/x86/kernel/cpu/perf_event.c
14392 +++ b/arch/x86/kernel/cpu/perf_event.c
14393 @@ -1837,7 +1837,7 @@ perf_callchain_user(struct perf_callchain_entry *entry, struct pt_regs *regs)
14394 break;
14395
14396 perf_callchain_store(entry, frame.return_address);
14397 - fp = frame.next_frame;
14398 + fp = (const void __force_user *)frame.next_frame;
14399 }
14400 }
14401
14402 diff --git a/arch/x86/kernel/crash.c b/arch/x86/kernel/crash.c
14403 index 13ad899..f642b9a 100644
14404 --- a/arch/x86/kernel/crash.c
14405 +++ b/arch/x86/kernel/crash.c
14406 @@ -36,10 +36,8 @@ static void kdump_nmi_callback(int cpu, struct pt_regs *regs)
14407 {
14408 #ifdef CONFIG_X86_32
14409 struct pt_regs fixed_regs;
14410 -#endif
14411
14412 -#ifdef CONFIG_X86_32
14413 - if (!user_mode_vm(regs)) {
14414 + if (!user_mode(regs)) {
14415 crash_fixup_ss_esp(&fixed_regs, regs);
14416 regs = &fixed_regs;
14417 }
14418 diff --git a/arch/x86/kernel/doublefault_32.c b/arch/x86/kernel/doublefault_32.c
14419 index 37250fe..bf2ec74 100644
14420 --- a/arch/x86/kernel/doublefault_32.c
14421 +++ b/arch/x86/kernel/doublefault_32.c
14422 @@ -11,7 +11,7 @@
14423
14424 #define DOUBLEFAULT_STACKSIZE (1024)
14425 static unsigned long doublefault_stack[DOUBLEFAULT_STACKSIZE];
14426 -#define STACK_START (unsigned long)(doublefault_stack+DOUBLEFAULT_STACKSIZE)
14427 +#define STACK_START (unsigned long)(doublefault_stack+DOUBLEFAULT_STACKSIZE-2)
14428
14429 #define ptr_ok(x) ((x) > PAGE_OFFSET && (x) < PAGE_OFFSET + MAXMEM)
14430
14431 @@ -21,7 +21,7 @@ static void doublefault_fn(void)
14432 unsigned long gdt, tss;
14433
14434 store_gdt(&gdt_desc);
14435 - gdt = gdt_desc.address;
14436 + gdt = (unsigned long)gdt_desc.address;
14437
14438 printk(KERN_EMERG "PANIC: double fault, gdt at %08lx [%d bytes]\n", gdt, gdt_desc.size);
14439
14440 @@ -58,10 +58,10 @@ struct tss_struct doublefault_tss __cacheline_aligned = {
14441 /* 0x2 bit is always set */
14442 .flags = X86_EFLAGS_SF | 0x2,
14443 .sp = STACK_START,
14444 - .es = __USER_DS,
14445 + .es = __KERNEL_DS,
14446 .cs = __KERNEL_CS,
14447 .ss = __KERNEL_DS,
14448 - .ds = __USER_DS,
14449 + .ds = __KERNEL_DS,
14450 .fs = __KERNEL_PERCPU,
14451
14452 .__cr3 = __pa_nodebug(swapper_pg_dir),
14453 diff --git a/arch/x86/kernel/dumpstack.c b/arch/x86/kernel/dumpstack.c
14454 index 571246d..81f335c 100644
14455 --- a/arch/x86/kernel/dumpstack.c
14456 +++ b/arch/x86/kernel/dumpstack.c
14457 @@ -2,6 +2,9 @@
14458 * Copyright (C) 1991, 1992 Linus Torvalds
14459 * Copyright (C) 2000, 2001, 2002 Andi Kleen, SuSE Labs
14460 */
14461 +#ifdef CONFIG_GRKERNSEC_HIDESYM
14462 +#define __INCLUDED_BY_HIDESYM 1
14463 +#endif
14464 #include <linux/kallsyms.h>
14465 #include <linux/kprobes.h>
14466 #include <linux/uaccess.h>
14467 @@ -35,16 +38,14 @@ void printk_address(unsigned long address, int reliable)
14468 static void
14469 print_ftrace_graph_addr(unsigned long addr, void *data,
14470 const struct stacktrace_ops *ops,
14471 - struct thread_info *tinfo, int *graph)
14472 + struct task_struct *task, int *graph)
14473 {
14474 - struct task_struct *task;
14475 unsigned long ret_addr;
14476 int index;
14477
14478 if (addr != (unsigned long)return_to_handler)
14479 return;
14480
14481 - task = tinfo->task;
14482 index = task->curr_ret_stack;
14483
14484 if (!task->ret_stack || index < *graph)
14485 @@ -61,7 +62,7 @@ print_ftrace_graph_addr(unsigned long addr, void *data,
14486 static inline void
14487 print_ftrace_graph_addr(unsigned long addr, void *data,
14488 const struct stacktrace_ops *ops,
14489 - struct thread_info *tinfo, int *graph)
14490 + struct task_struct *task, int *graph)
14491 { }
14492 #endif
14493
14494 @@ -72,10 +73,8 @@ print_ftrace_graph_addr(unsigned long addr, void *data,
14495 * severe exception (double fault, nmi, stack fault, debug, mce) hardware stack
14496 */
14497
14498 -static inline int valid_stack_ptr(struct thread_info *tinfo,
14499 - void *p, unsigned int size, void *end)
14500 +static inline int valid_stack_ptr(void *t, void *p, unsigned int size, void *end)
14501 {
14502 - void *t = tinfo;
14503 if (end) {
14504 if (p < end && p >= (end-THREAD_SIZE))
14505 return 1;
14506 @@ -86,14 +85,14 @@ static inline int valid_stack_ptr(struct thread_info *tinfo,
14507 }
14508
14509 unsigned long
14510 -print_context_stack(struct thread_info *tinfo,
14511 +print_context_stack(struct task_struct *task, void *stack_start,
14512 unsigned long *stack, unsigned long bp,
14513 const struct stacktrace_ops *ops, void *data,
14514 unsigned long *end, int *graph)
14515 {
14516 struct stack_frame *frame = (struct stack_frame *)bp;
14517
14518 - while (valid_stack_ptr(tinfo, stack, sizeof(*stack), end)) {
14519 + while (valid_stack_ptr(stack_start, stack, sizeof(*stack), end)) {
14520 unsigned long addr;
14521
14522 addr = *stack;
14523 @@ -105,7 +104,7 @@ print_context_stack(struct thread_info *tinfo,
14524 } else {
14525 ops->address(data, addr, 0);
14526 }
14527 - print_ftrace_graph_addr(addr, data, ops, tinfo, graph);
14528 + print_ftrace_graph_addr(addr, data, ops, task, graph);
14529 }
14530 stack++;
14531 }
14532 @@ -114,7 +113,7 @@ print_context_stack(struct thread_info *tinfo,
14533 EXPORT_SYMBOL_GPL(print_context_stack);
14534
14535 unsigned long
14536 -print_context_stack_bp(struct thread_info *tinfo,
14537 +print_context_stack_bp(struct task_struct *task, void *stack_start,
14538 unsigned long *stack, unsigned long bp,
14539 const struct stacktrace_ops *ops, void *data,
14540 unsigned long *end, int *graph)
14541 @@ -122,7 +121,7 @@ print_context_stack_bp(struct thread_info *tinfo,
14542 struct stack_frame *frame = (struct stack_frame *)bp;
14543 unsigned long *ret_addr = &frame->return_address;
14544
14545 - while (valid_stack_ptr(tinfo, ret_addr, sizeof(*ret_addr), end)) {
14546 + while (valid_stack_ptr(stack_start, ret_addr, sizeof(*ret_addr), end)) {
14547 unsigned long addr = *ret_addr;
14548
14549 if (!__kernel_text_address(addr))
14550 @@ -131,7 +130,7 @@ print_context_stack_bp(struct thread_info *tinfo,
14551 ops->address(data, addr, 1);
14552 frame = frame->next_frame;
14553 ret_addr = &frame->return_address;
14554 - print_ftrace_graph_addr(addr, data, ops, tinfo, graph);
14555 + print_ftrace_graph_addr(addr, data, ops, task, graph);
14556 }
14557
14558 return (unsigned long)frame;
14559 @@ -189,7 +188,7 @@ void dump_stack(void)
14560
14561 bp = stack_frame(current, NULL);
14562 printk("Pid: %d, comm: %.20s %s %s %.*s\n",
14563 - current->pid, current->comm, print_tainted(),
14564 + task_pid_nr(current), current->comm, print_tainted(),
14565 init_utsname()->release,
14566 (int)strcspn(init_utsname()->version, " "),
14567 init_utsname()->version);
14568 @@ -225,6 +224,8 @@ unsigned __kprobes long oops_begin(void)
14569 }
14570 EXPORT_SYMBOL_GPL(oops_begin);
14571
14572 +extern void gr_handle_kernel_exploit(void);
14573 +
14574 void __kprobes oops_end(unsigned long flags, struct pt_regs *regs, int signr)
14575 {
14576 if (regs && kexec_should_crash(current))
14577 @@ -246,7 +247,10 @@ void __kprobes oops_end(unsigned long flags, struct pt_regs *regs, int signr)
14578 panic("Fatal exception in interrupt");
14579 if (panic_on_oops)
14580 panic("Fatal exception");
14581 - do_exit(signr);
14582 +
14583 + gr_handle_kernel_exploit();
14584 +
14585 + do_group_exit(signr);
14586 }
14587
14588 int __kprobes __die(const char *str, struct pt_regs *regs, long err)
14589 @@ -273,7 +277,7 @@ int __kprobes __die(const char *str, struct pt_regs *regs, long err)
14590
14591 show_regs(regs);
14592 #ifdef CONFIG_X86_32
14593 - if (user_mode_vm(regs)) {
14594 + if (user_mode(regs)) {
14595 sp = regs->sp;
14596 ss = regs->ss & 0xffff;
14597 } else {
14598 @@ -301,7 +305,7 @@ void die(const char *str, struct pt_regs *regs, long err)
14599 unsigned long flags = oops_begin();
14600 int sig = SIGSEGV;
14601
14602 - if (!user_mode_vm(regs))
14603 + if (!user_mode(regs))
14604 report_bug(regs->ip, regs);
14605
14606 if (__die(str, regs, err))
14607 diff --git a/arch/x86/kernel/dumpstack_32.c b/arch/x86/kernel/dumpstack_32.c
14608 index e0b1d78..a8ade5e 100644
14609 --- a/arch/x86/kernel/dumpstack_32.c
14610 +++ b/arch/x86/kernel/dumpstack_32.c
14611 @@ -38,15 +38,13 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs,
14612 bp = stack_frame(task, regs);
14613
14614 for (;;) {
14615 - struct thread_info *context;
14616 + void *stack_start = (void *)((unsigned long)stack & ~(THREAD_SIZE-1));
14617
14618 - context = (struct thread_info *)
14619 - ((unsigned long)stack & (~(THREAD_SIZE - 1)));
14620 - bp = ops->walk_stack(context, stack, bp, ops, data, NULL, &graph);
14621 + bp = ops->walk_stack(task, stack_start, stack, bp, ops, data, NULL, &graph);
14622
14623 - stack = (unsigned long *)context->previous_esp;
14624 - if (!stack)
14625 + if (stack_start == task_stack_page(task))
14626 break;
14627 + stack = *(unsigned long **)stack_start;
14628 if (ops->stack(data, "IRQ") < 0)
14629 break;
14630 touch_nmi_watchdog();
14631 @@ -87,7 +85,7 @@ void show_regs(struct pt_regs *regs)
14632 int i;
14633
14634 print_modules();
14635 - __show_regs(regs, !user_mode_vm(regs));
14636 + __show_regs(regs, !user_mode(regs));
14637
14638 printk(KERN_EMERG "Process %.*s (pid: %d, ti=%p task=%p task.ti=%p)\n",
14639 TASK_COMM_LEN, current->comm, task_pid_nr(current),
14640 @@ -96,21 +94,22 @@ void show_regs(struct pt_regs *regs)
14641 * When in-kernel, we also print out the stack and code at the
14642 * time of the fault..
14643 */
14644 - if (!user_mode_vm(regs)) {
14645 + if (!user_mode(regs)) {
14646 unsigned int code_prologue = code_bytes * 43 / 64;
14647 unsigned int code_len = code_bytes;
14648 unsigned char c;
14649 u8 *ip;
14650 + unsigned long cs_base = get_desc_base(&get_cpu_gdt_table(smp_processor_id())[(0xffff & regs->cs) >> 3]);
14651
14652 printk(KERN_EMERG "Stack:\n");
14653 show_stack_log_lvl(NULL, regs, &regs->sp, 0, KERN_EMERG);
14654
14655 printk(KERN_EMERG "Code: ");
14656
14657 - ip = (u8 *)regs->ip - code_prologue;
14658 + ip = (u8 *)regs->ip - code_prologue + cs_base;
14659 if (ip < (u8 *)PAGE_OFFSET || probe_kernel_address(ip, c)) {
14660 /* try starting at IP */
14661 - ip = (u8 *)regs->ip;
14662 + ip = (u8 *)regs->ip + cs_base;
14663 code_len = code_len - code_prologue + 1;
14664 }
14665 for (i = 0; i < code_len; i++, ip++) {
14666 @@ -119,7 +118,7 @@ void show_regs(struct pt_regs *regs)
14667 printk(KERN_CONT " Bad EIP value.");
14668 break;
14669 }
14670 - if (ip == (u8 *)regs->ip)
14671 + if (ip == (u8 *)regs->ip + cs_base)
14672 printk(KERN_CONT "<%02x> ", c);
14673 else
14674 printk(KERN_CONT "%02x ", c);
14675 @@ -132,6 +131,7 @@ int is_valid_bugaddr(unsigned long ip)
14676 {
14677 unsigned short ud2;
14678
14679 + ip = ktla_ktva(ip);
14680 if (ip < PAGE_OFFSET)
14681 return 0;
14682 if (probe_kernel_address((unsigned short *)ip, ud2))
14683 @@ -139,3 +139,15 @@ int is_valid_bugaddr(unsigned long ip)
14684
14685 return ud2 == 0x0b0f;
14686 }
14687 +
14688 +#ifdef CONFIG_PAX_MEMORY_STACKLEAK
14689 +void pax_check_alloca(unsigned long size)
14690 +{
14691 + unsigned long sp = (unsigned long)&sp, stack_left;
14692 +
14693 + /* all kernel stacks are of the same size */
14694 + stack_left = sp & (THREAD_SIZE - 1);
14695 + BUG_ON(stack_left < 256 || size >= stack_left - 256);
14696 +}
14697 +EXPORT_SYMBOL(pax_check_alloca);
14698 +#endif
14699 diff --git a/arch/x86/kernel/dumpstack_64.c b/arch/x86/kernel/dumpstack_64.c
14700 index 791b761..2ab6e33 100644
14701 --- a/arch/x86/kernel/dumpstack_64.c
14702 +++ b/arch/x86/kernel/dumpstack_64.c
14703 @@ -119,9 +119,9 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs,
14704 unsigned long *irq_stack_end =
14705 (unsigned long *)per_cpu(irq_stack_ptr, cpu);
14706 unsigned used = 0;
14707 - struct thread_info *tinfo;
14708 int graph = 0;
14709 unsigned long dummy;
14710 + void *stack_start;
14711
14712 if (!task)
14713 task = current;
14714 @@ -142,10 +142,10 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs,
14715 * current stack address. If the stacks consist of nested
14716 * exceptions
14717 */
14718 - tinfo = task_thread_info(task);
14719 for (;;) {
14720 char *id;
14721 unsigned long *estack_end;
14722 +
14723 estack_end = in_exception_stack(cpu, (unsigned long)stack,
14724 &used, &id);
14725
14726 @@ -153,7 +153,7 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs,
14727 if (ops->stack(data, id) < 0)
14728 break;
14729
14730 - bp = ops->walk_stack(tinfo, stack, bp, ops,
14731 + bp = ops->walk_stack(task, estack_end - EXCEPTION_STKSZ, stack, bp, ops,
14732 data, estack_end, &graph);
14733 ops->stack(data, "<EOE>");
14734 /*
14735 @@ -161,6 +161,8 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs,
14736 * second-to-last pointer (index -2 to end) in the
14737 * exception stack:
14738 */
14739 + if ((u16)estack_end[-1] != __KERNEL_DS)
14740 + goto out;
14741 stack = (unsigned long *) estack_end[-2];
14742 continue;
14743 }
14744 @@ -172,7 +174,7 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs,
14745 if (in_irq_stack(stack, irq_stack, irq_stack_end)) {
14746 if (ops->stack(data, "IRQ") < 0)
14747 break;
14748 - bp = ops->walk_stack(tinfo, stack, bp,
14749 + bp = ops->walk_stack(task, irq_stack, stack, bp,
14750 ops, data, irq_stack_end, &graph);
14751 /*
14752 * We link to the next stack (which would be
14753 @@ -191,7 +193,9 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs,
14754 /*
14755 * This handles the process stack:
14756 */
14757 - bp = ops->walk_stack(tinfo, stack, bp, ops, data, NULL, &graph);
14758 + stack_start = (void *)((unsigned long)stack & ~(THREAD_SIZE-1));
14759 + bp = ops->walk_stack(task, stack_start, stack, bp, ops, data, NULL, &graph);
14760 +out:
14761 put_cpu();
14762 }
14763 EXPORT_SYMBOL(dump_trace);
14764 @@ -305,3 +309,50 @@ int is_valid_bugaddr(unsigned long ip)
14765
14766 return ud2 == 0x0b0f;
14767 }
14768 +
14769 +#ifdef CONFIG_PAX_MEMORY_STACKLEAK
14770 +void pax_check_alloca(unsigned long size)
14771 +{
14772 + unsigned long sp = (unsigned long)&sp, stack_start, stack_end;
14773 + unsigned cpu, used;
14774 + char *id;
14775 +
14776 + /* check the process stack first */
14777 + stack_start = (unsigned long)task_stack_page(current);
14778 + stack_end = stack_start + THREAD_SIZE;
14779 + if (likely(stack_start <= sp && sp < stack_end)) {
14780 + unsigned long stack_left = sp & (THREAD_SIZE - 1);
14781 + BUG_ON(stack_left < 256 || size >= stack_left - 256);
14782 + return;
14783 + }
14784 +
14785 + cpu = get_cpu();
14786 +
14787 + /* check the irq stacks */
14788 + stack_end = (unsigned long)per_cpu(irq_stack_ptr, cpu);
14789 + stack_start = stack_end - IRQ_STACK_SIZE;
14790 + if (stack_start <= sp && sp < stack_end) {
14791 + unsigned long stack_left = sp & (IRQ_STACK_SIZE - 1);
14792 + put_cpu();
14793 + BUG_ON(stack_left < 256 || size >= stack_left - 256);
14794 + return;
14795 + }
14796 +
14797 + /* check the exception stacks */
14798 + used = 0;
14799 + stack_end = (unsigned long)in_exception_stack(cpu, sp, &used, &id);
14800 + stack_start = stack_end - EXCEPTION_STKSZ;
14801 + if (stack_end && stack_start <= sp && sp < stack_end) {
14802 + unsigned long stack_left = sp & (EXCEPTION_STKSZ - 1);
14803 + put_cpu();
14804 + BUG_ON(stack_left < 256 || size >= stack_left - 256);
14805 + return;
14806 + }
14807 +
14808 + put_cpu();
14809 +
14810 + /* unknown stack */
14811 + BUG();
14812 +}
14813 +EXPORT_SYMBOL(pax_check_alloca);
14814 +#endif
14815 diff --git a/arch/x86/kernel/early_printk.c b/arch/x86/kernel/early_printk.c
14816 index 9b9f18b..9fcaa04 100644
14817 --- a/arch/x86/kernel/early_printk.c
14818 +++ b/arch/x86/kernel/early_printk.c
14819 @@ -7,6 +7,7 @@
14820 #include <linux/pci_regs.h>
14821 #include <linux/pci_ids.h>
14822 #include <linux/errno.h>
14823 +#include <linux/sched.h>
14824 #include <asm/io.h>
14825 #include <asm/processor.h>
14826 #include <asm/fcntl.h>
14827 diff --git a/arch/x86/kernel/entry_32.S b/arch/x86/kernel/entry_32.S
14828 index 623f288..0683156 100644
14829 --- a/arch/x86/kernel/entry_32.S
14830 +++ b/arch/x86/kernel/entry_32.S
14831 @@ -176,13 +176,146 @@
14832 /*CFI_REL_OFFSET gs, PT_GS*/
14833 .endm
14834 .macro SET_KERNEL_GS reg
14835 +
14836 +#ifdef CONFIG_CC_STACKPROTECTOR
14837 movl $(__KERNEL_STACK_CANARY), \reg
14838 +#elif defined(CONFIG_PAX_MEMORY_UDEREF)
14839 + movl $(__USER_DS), \reg
14840 +#else
14841 + xorl \reg, \reg
14842 +#endif
14843 +
14844 movl \reg, %gs
14845 .endm
14846
14847 #endif /* CONFIG_X86_32_LAZY_GS */
14848
14849 -.macro SAVE_ALL
14850 +.macro pax_enter_kernel
14851 +#ifdef CONFIG_PAX_KERNEXEC
14852 + call pax_enter_kernel
14853 +#endif
14854 +.endm
14855 +
14856 +.macro pax_exit_kernel
14857 +#ifdef CONFIG_PAX_KERNEXEC
14858 + call pax_exit_kernel
14859 +#endif
14860 +.endm
14861 +
14862 +#ifdef CONFIG_PAX_KERNEXEC
14863 +ENTRY(pax_enter_kernel)
14864 +#ifdef CONFIG_PARAVIRT
14865 + pushl %eax
14866 + pushl %ecx
14867 + call PARA_INDIRECT(pv_cpu_ops+PV_CPU_read_cr0)
14868 + mov %eax, %esi
14869 +#else
14870 + mov %cr0, %esi
14871 +#endif
14872 + bts $16, %esi
14873 + jnc 1f
14874 + mov %cs, %esi
14875 + cmp $__KERNEL_CS, %esi
14876 + jz 3f
14877 + ljmp $__KERNEL_CS, $3f
14878 +1: ljmp $__KERNEXEC_KERNEL_CS, $2f
14879 +2:
14880 +#ifdef CONFIG_PARAVIRT
14881 + mov %esi, %eax
14882 + call PARA_INDIRECT(pv_cpu_ops+PV_CPU_write_cr0)
14883 +#else
14884 + mov %esi, %cr0
14885 +#endif
14886 +3:
14887 +#ifdef CONFIG_PARAVIRT
14888 + popl %ecx
14889 + popl %eax
14890 +#endif
14891 + ret
14892 +ENDPROC(pax_enter_kernel)
14893 +
14894 +ENTRY(pax_exit_kernel)
14895 +#ifdef CONFIG_PARAVIRT
14896 + pushl %eax
14897 + pushl %ecx
14898 +#endif
14899 + mov %cs, %esi
14900 + cmp $__KERNEXEC_KERNEL_CS, %esi
14901 + jnz 2f
14902 +#ifdef CONFIG_PARAVIRT
14903 + call PARA_INDIRECT(pv_cpu_ops+PV_CPU_read_cr0);
14904 + mov %eax, %esi
14905 +#else
14906 + mov %cr0, %esi
14907 +#endif
14908 + btr $16, %esi
14909 + ljmp $__KERNEL_CS, $1f
14910 +1:
14911 +#ifdef CONFIG_PARAVIRT
14912 + mov %esi, %eax
14913 + call PARA_INDIRECT(pv_cpu_ops+PV_CPU_write_cr0);
14914 +#else
14915 + mov %esi, %cr0
14916 +#endif
14917 +2:
14918 +#ifdef CONFIG_PARAVIRT
14919 + popl %ecx
14920 + popl %eax
14921 +#endif
14922 + ret
14923 +ENDPROC(pax_exit_kernel)
14924 +#endif
14925 +
14926 +.macro pax_erase_kstack
14927 +#ifdef CONFIG_PAX_MEMORY_STACKLEAK
14928 + call pax_erase_kstack
14929 +#endif
14930 +.endm
14931 +
14932 +#ifdef CONFIG_PAX_MEMORY_STACKLEAK
14933 +/*
14934 + * ebp: thread_info
14935 + * ecx, edx: can be clobbered
14936 + */
14937 +ENTRY(pax_erase_kstack)
14938 + pushl %edi
14939 + pushl %eax
14940 +
14941 + mov TI_lowest_stack(%ebp), %edi
14942 + mov $-0xBEEF, %eax
14943 + std
14944 +
14945 +1: mov %edi, %ecx
14946 + and $THREAD_SIZE_asm - 1, %ecx
14947 + shr $2, %ecx
14948 + repne scasl
14949 + jecxz 2f
14950 +
14951 + cmp $2*16, %ecx
14952 + jc 2f
14953 +
14954 + mov $2*16, %ecx
14955 + repe scasl
14956 + jecxz 2f
14957 + jne 1b
14958 +
14959 +2: cld
14960 + mov %esp, %ecx
14961 + sub %edi, %ecx
14962 + shr $2, %ecx
14963 + rep stosl
14964 +
14965 + mov TI_task_thread_sp0(%ebp), %edi
14966 + sub $128, %edi
14967 + mov %edi, TI_lowest_stack(%ebp)
14968 +
14969 + popl %eax
14970 + popl %edi
14971 + ret
14972 +ENDPROC(pax_erase_kstack)
14973 +#endif
14974 +
14975 +.macro __SAVE_ALL _DS
14976 cld
14977 PUSH_GS
14978 pushl_cfi %fs
14979 @@ -205,7 +338,7 @@
14980 CFI_REL_OFFSET ecx, 0
14981 pushl_cfi %ebx
14982 CFI_REL_OFFSET ebx, 0
14983 - movl $(__USER_DS), %edx
14984 + movl $\_DS, %edx
14985 movl %edx, %ds
14986 movl %edx, %es
14987 movl $(__KERNEL_PERCPU), %edx
14988 @@ -213,6 +346,15 @@
14989 SET_KERNEL_GS %edx
14990 .endm
14991
14992 +.macro SAVE_ALL
14993 +#if defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
14994 + __SAVE_ALL __KERNEL_DS
14995 + pax_enter_kernel
14996 +#else
14997 + __SAVE_ALL __USER_DS
14998 +#endif
14999 +.endm
15000 +
15001 .macro RESTORE_INT_REGS
15002 popl_cfi %ebx
15003 CFI_RESTORE ebx
15004 @@ -296,7 +438,7 @@ ENTRY(ret_from_fork)
15005 popfl_cfi
15006 jmp syscall_exit
15007 CFI_ENDPROC
15008 -END(ret_from_fork)
15009 +ENDPROC(ret_from_fork)
15010
15011 /*
15012 * Interrupt exit functions should be protected against kprobes
15013 @@ -329,7 +471,15 @@ ret_from_intr:
15014 andl $SEGMENT_RPL_MASK, %eax
15015 #endif
15016 cmpl $USER_RPL, %eax
15017 +
15018 +#ifdef CONFIG_PAX_KERNEXEC
15019 + jae resume_userspace
15020 +
15021 + pax_exit_kernel
15022 + jmp resume_kernel
15023 +#else
15024 jb resume_kernel # not returning to v8086 or userspace
15025 +#endif
15026
15027 ENTRY(resume_userspace)
15028 LOCKDEP_SYS_EXIT
15029 @@ -341,8 +491,8 @@ ENTRY(resume_userspace)
15030 andl $_TIF_WORK_MASK, %ecx # is there any work to be done on
15031 # int/exception return?
15032 jne work_pending
15033 - jmp restore_all
15034 -END(ret_from_exception)
15035 + jmp restore_all_pax
15036 +ENDPROC(ret_from_exception)
15037
15038 #ifdef CONFIG_PREEMPT
15039 ENTRY(resume_kernel)
15040 @@ -357,7 +507,7 @@ need_resched:
15041 jz restore_all
15042 call preempt_schedule_irq
15043 jmp need_resched
15044 -END(resume_kernel)
15045 +ENDPROC(resume_kernel)
15046 #endif
15047 CFI_ENDPROC
15048 /*
15049 @@ -391,23 +541,34 @@ sysenter_past_esp:
15050 /*CFI_REL_OFFSET cs, 0*/
15051 /*
15052 * Push current_thread_info()->sysenter_return to the stack.
15053 - * A tiny bit of offset fixup is necessary - 4*4 means the 4 words
15054 - * pushed above; +8 corresponds to copy_thread's esp0 setting.
15055 */
15056 - pushl_cfi ((TI_sysenter_return)-THREAD_SIZE+8+4*4)(%esp)
15057 + pushl_cfi $0
15058 CFI_REL_OFFSET eip, 0
15059
15060 pushl_cfi %eax
15061 SAVE_ALL
15062 + GET_THREAD_INFO(%ebp)
15063 + movl TI_sysenter_return(%ebp),%ebp
15064 + movl %ebp,PT_EIP(%esp)
15065 ENABLE_INTERRUPTS(CLBR_NONE)
15066
15067 /*
15068 * Load the potential sixth argument from user stack.
15069 * Careful about security.
15070 */
15071 + movl PT_OLDESP(%esp),%ebp
15072 +
15073 +#ifdef CONFIG_PAX_MEMORY_UDEREF
15074 + mov PT_OLDSS(%esp),%ds
15075 +1: movl %ds:(%ebp),%ebp
15076 + push %ss
15077 + pop %ds
15078 +#else
15079 cmpl $__PAGE_OFFSET-3,%ebp
15080 jae syscall_fault
15081 1: movl (%ebp),%ebp
15082 +#endif
15083 +
15084 movl %ebp,PT_EBP(%esp)
15085 _ASM_EXTABLE(1b,syscall_fault)
15086
15087 @@ -427,12 +588,24 @@ sysenter_do_call:
15088 testl $_TIF_ALLWORK_MASK, %ecx
15089 jne sysexit_audit
15090 sysenter_exit:
15091 +
15092 +#ifdef CONFIG_PAX_RANDKSTACK
15093 + pushl_cfi %eax
15094 + movl %esp, %eax
15095 + call pax_randomize_kstack
15096 + popl_cfi %eax
15097 +#endif
15098 +
15099 + pax_erase_kstack
15100 +
15101 /* if something modifies registers it must also disable sysexit */
15102 movl PT_EIP(%esp), %edx
15103 movl PT_OLDESP(%esp), %ecx
15104 xorl %ebp,%ebp
15105 TRACE_IRQS_ON
15106 1: mov PT_FS(%esp), %fs
15107 +2: mov PT_DS(%esp), %ds
15108 +3: mov PT_ES(%esp), %es
15109 PTGS_TO_GS
15110 ENABLE_INTERRUPTS_SYSEXIT
15111
15112 @@ -449,6 +622,9 @@ sysenter_audit:
15113 movl %eax,%edx /* 2nd arg: syscall number */
15114 movl $AUDIT_ARCH_I386,%eax /* 1st arg: audit arch */
15115 call __audit_syscall_entry
15116 +
15117 + pax_erase_kstack
15118 +
15119 pushl_cfi %ebx
15120 movl PT_EAX(%esp),%eax /* reload syscall number */
15121 jmp sysenter_do_call
15122 @@ -474,10 +650,16 @@ sysexit_audit:
15123
15124 CFI_ENDPROC
15125 .pushsection .fixup,"ax"
15126 -2: movl $0,PT_FS(%esp)
15127 +4: movl $0,PT_FS(%esp)
15128 + jmp 1b
15129 +5: movl $0,PT_DS(%esp)
15130 + jmp 1b
15131 +6: movl $0,PT_ES(%esp)
15132 jmp 1b
15133 .popsection
15134 - _ASM_EXTABLE(1b,2b)
15135 + _ASM_EXTABLE(1b,4b)
15136 + _ASM_EXTABLE(2b,5b)
15137 + _ASM_EXTABLE(3b,6b)
15138 PTGS_TO_GS_EX
15139 ENDPROC(ia32_sysenter_target)
15140
15141 @@ -509,6 +691,15 @@ syscall_exit:
15142 testl $_TIF_ALLWORK_MASK, %ecx # current->work
15143 jne syscall_exit_work
15144
15145 +restore_all_pax:
15146 +
15147 +#ifdef CONFIG_PAX_RANDKSTACK
15148 + movl %esp, %eax
15149 + call pax_randomize_kstack
15150 +#endif
15151 +
15152 + pax_erase_kstack
15153 +
15154 restore_all:
15155 TRACE_IRQS_IRET
15156 restore_all_notrace:
15157 @@ -565,14 +756,34 @@ ldt_ss:
15158 * compensating for the offset by changing to the ESPFIX segment with
15159 * a base address that matches for the difference.
15160 */
15161 -#define GDT_ESPFIX_SS PER_CPU_VAR(gdt_page) + (GDT_ENTRY_ESPFIX_SS * 8)
15162 +#define GDT_ESPFIX_SS (GDT_ENTRY_ESPFIX_SS * 8)(%ebx)
15163 mov %esp, %edx /* load kernel esp */
15164 mov PT_OLDESP(%esp), %eax /* load userspace esp */
15165 mov %dx, %ax /* eax: new kernel esp */
15166 sub %eax, %edx /* offset (low word is 0) */
15167 +#ifdef CONFIG_SMP
15168 + movl PER_CPU_VAR(cpu_number), %ebx
15169 + shll $PAGE_SHIFT_asm, %ebx
15170 + addl $cpu_gdt_table, %ebx
15171 +#else
15172 + movl $cpu_gdt_table, %ebx
15173 +#endif
15174 shr $16, %edx
15175 - mov %dl, GDT_ESPFIX_SS + 4 /* bits 16..23 */
15176 - mov %dh, GDT_ESPFIX_SS + 7 /* bits 24..31 */
15177 +
15178 +#ifdef CONFIG_PAX_KERNEXEC
15179 + mov %cr0, %esi
15180 + btr $16, %esi
15181 + mov %esi, %cr0
15182 +#endif
15183 +
15184 + mov %dl, 4 + GDT_ESPFIX_SS /* bits 16..23 */
15185 + mov %dh, 7 + GDT_ESPFIX_SS /* bits 24..31 */
15186 +
15187 +#ifdef CONFIG_PAX_KERNEXEC
15188 + bts $16, %esi
15189 + mov %esi, %cr0
15190 +#endif
15191 +
15192 pushl_cfi $__ESPFIX_SS
15193 pushl_cfi %eax /* new kernel esp */
15194 /* Disable interrupts, but do not irqtrace this section: we
15195 @@ -601,35 +812,23 @@ work_resched:
15196 movl TI_flags(%ebp), %ecx
15197 andl $_TIF_WORK_MASK, %ecx # is there any work to be done other
15198 # than syscall tracing?
15199 - jz restore_all
15200 + jz restore_all_pax
15201 testb $_TIF_NEED_RESCHED, %cl
15202 jnz work_resched
15203
15204 work_notifysig: # deal with pending signals and
15205 # notify-resume requests
15206 + movl %esp, %eax
15207 #ifdef CONFIG_VM86
15208 testl $X86_EFLAGS_VM, PT_EFLAGS(%esp)
15209 - movl %esp, %eax
15210 - jne work_notifysig_v86 # returning to kernel-space or
15211 + jz 1f # returning to kernel-space or
15212 # vm86-space
15213 - TRACE_IRQS_ON
15214 - ENABLE_INTERRUPTS(CLBR_NONE)
15215 - movb PT_CS(%esp), %bl
15216 - andb $SEGMENT_RPL_MASK, %bl
15217 - cmpb $USER_RPL, %bl
15218 - jb resume_kernel
15219 - xorl %edx, %edx
15220 - call do_notify_resume
15221 - jmp resume_userspace
15222
15223 - ALIGN
15224 -work_notifysig_v86:
15225 pushl_cfi %ecx # save ti_flags for do_notify_resume
15226 call save_v86_state # %eax contains pt_regs pointer
15227 popl_cfi %ecx
15228 movl %eax, %esp
15229 -#else
15230 - movl %esp, %eax
15231 +1:
15232 #endif
15233 TRACE_IRQS_ON
15234 ENABLE_INTERRUPTS(CLBR_NONE)
15235 @@ -640,7 +839,7 @@ work_notifysig_v86:
15236 xorl %edx, %edx
15237 call do_notify_resume
15238 jmp resume_userspace
15239 -END(work_pending)
15240 +ENDPROC(work_pending)
15241
15242 # perform syscall exit tracing
15243 ALIGN
15244 @@ -648,11 +847,14 @@ syscall_trace_entry:
15245 movl $-ENOSYS,PT_EAX(%esp)
15246 movl %esp, %eax
15247 call syscall_trace_enter
15248 +
15249 + pax_erase_kstack
15250 +
15251 /* What it returned is what we'll actually use. */
15252 cmpl $(NR_syscalls), %eax
15253 jnae syscall_call
15254 jmp syscall_exit
15255 -END(syscall_trace_entry)
15256 +ENDPROC(syscall_trace_entry)
15257
15258 # perform syscall exit tracing
15259 ALIGN
15260 @@ -665,20 +867,24 @@ syscall_exit_work:
15261 movl %esp, %eax
15262 call syscall_trace_leave
15263 jmp resume_userspace
15264 -END(syscall_exit_work)
15265 +ENDPROC(syscall_exit_work)
15266 CFI_ENDPROC
15267
15268 RING0_INT_FRAME # can't unwind into user space anyway
15269 syscall_fault:
15270 +#ifdef CONFIG_PAX_MEMORY_UDEREF
15271 + push %ss
15272 + pop %ds
15273 +#endif
15274 GET_THREAD_INFO(%ebp)
15275 movl $-EFAULT,PT_EAX(%esp)
15276 jmp resume_userspace
15277 -END(syscall_fault)
15278 +ENDPROC(syscall_fault)
15279
15280 syscall_badsys:
15281 movl $-ENOSYS,PT_EAX(%esp)
15282 jmp resume_userspace
15283 -END(syscall_badsys)
15284 +ENDPROC(syscall_badsys)
15285 CFI_ENDPROC
15286 /*
15287 * End of kprobes section
15288 @@ -750,6 +956,36 @@ ENTRY(ptregs_clone)
15289 CFI_ENDPROC
15290 ENDPROC(ptregs_clone)
15291
15292 + ALIGN;
15293 +ENTRY(kernel_execve)
15294 + CFI_STARTPROC
15295 + pushl_cfi %ebp
15296 + sub $PT_OLDSS+4,%esp
15297 + pushl_cfi %edi
15298 + pushl_cfi %ecx
15299 + pushl_cfi %eax
15300 + lea 3*4(%esp),%edi
15301 + mov $PT_OLDSS/4+1,%ecx
15302 + xorl %eax,%eax
15303 + rep stosl
15304 + popl_cfi %eax
15305 + popl_cfi %ecx
15306 + popl_cfi %edi
15307 + movl $X86_EFLAGS_IF,PT_EFLAGS(%esp)
15308 + pushl_cfi %esp
15309 + call sys_execve
15310 + add $4,%esp
15311 + CFI_ADJUST_CFA_OFFSET -4
15312 + GET_THREAD_INFO(%ebp)
15313 + test %eax,%eax
15314 + jz syscall_exit
15315 + add $PT_OLDSS+4,%esp
15316 + CFI_ADJUST_CFA_OFFSET -PT_OLDSS-4
15317 + popl_cfi %ebp
15318 + ret
15319 + CFI_ENDPROC
15320 +ENDPROC(kernel_execve)
15321 +
15322 .macro FIXUP_ESPFIX_STACK
15323 /*
15324 * Switch back for ESPFIX stack to the normal zerobased stack
15325 @@ -759,8 +995,15 @@ ENDPROC(ptregs_clone)
15326 * normal stack and adjusts ESP with the matching offset.
15327 */
15328 /* fixup the stack */
15329 - mov GDT_ESPFIX_SS + 4, %al /* bits 16..23 */
15330 - mov GDT_ESPFIX_SS + 7, %ah /* bits 24..31 */
15331 +#ifdef CONFIG_SMP
15332 + movl PER_CPU_VAR(cpu_number), %ebx
15333 + shll $PAGE_SHIFT_asm, %ebx
15334 + addl $cpu_gdt_table, %ebx
15335 +#else
15336 + movl $cpu_gdt_table, %ebx
15337 +#endif
15338 + mov 4 + GDT_ESPFIX_SS, %al /* bits 16..23 */
15339 + mov 7 + GDT_ESPFIX_SS, %ah /* bits 24..31 */
15340 shl $16, %eax
15341 addl %esp, %eax /* the adjusted stack pointer */
15342 pushl_cfi $__KERNEL_DS
15343 @@ -813,7 +1056,7 @@ vector=vector+1
15344 .endr
15345 2: jmp common_interrupt
15346 .endr
15347 -END(irq_entries_start)
15348 +ENDPROC(irq_entries_start)
15349
15350 .previous
15351 END(interrupt)
15352 @@ -861,7 +1104,7 @@ ENTRY(coprocessor_error)
15353 pushl_cfi $do_coprocessor_error
15354 jmp error_code
15355 CFI_ENDPROC
15356 -END(coprocessor_error)
15357 +ENDPROC(coprocessor_error)
15358
15359 ENTRY(simd_coprocessor_error)
15360 RING0_INT_FRAME
15361 @@ -882,7 +1125,7 @@ ENTRY(simd_coprocessor_error)
15362 #endif
15363 jmp error_code
15364 CFI_ENDPROC
15365 -END(simd_coprocessor_error)
15366 +ENDPROC(simd_coprocessor_error)
15367
15368 ENTRY(device_not_available)
15369 RING0_INT_FRAME
15370 @@ -890,18 +1133,18 @@ ENTRY(device_not_available)
15371 pushl_cfi $do_device_not_available
15372 jmp error_code
15373 CFI_ENDPROC
15374 -END(device_not_available)
15375 +ENDPROC(device_not_available)
15376
15377 #ifdef CONFIG_PARAVIRT
15378 ENTRY(native_iret)
15379 iret
15380 _ASM_EXTABLE(native_iret, iret_exc)
15381 -END(native_iret)
15382 +ENDPROC(native_iret)
15383
15384 ENTRY(native_irq_enable_sysexit)
15385 sti
15386 sysexit
15387 -END(native_irq_enable_sysexit)
15388 +ENDPROC(native_irq_enable_sysexit)
15389 #endif
15390
15391 ENTRY(overflow)
15392 @@ -910,7 +1153,7 @@ ENTRY(overflow)
15393 pushl_cfi $do_overflow
15394 jmp error_code
15395 CFI_ENDPROC
15396 -END(overflow)
15397 +ENDPROC(overflow)
15398
15399 ENTRY(bounds)
15400 RING0_INT_FRAME
15401 @@ -918,7 +1161,7 @@ ENTRY(bounds)
15402 pushl_cfi $do_bounds
15403 jmp error_code
15404 CFI_ENDPROC
15405 -END(bounds)
15406 +ENDPROC(bounds)
15407
15408 ENTRY(invalid_op)
15409 RING0_INT_FRAME
15410 @@ -926,7 +1169,7 @@ ENTRY(invalid_op)
15411 pushl_cfi $do_invalid_op
15412 jmp error_code
15413 CFI_ENDPROC
15414 -END(invalid_op)
15415 +ENDPROC(invalid_op)
15416
15417 ENTRY(coprocessor_segment_overrun)
15418 RING0_INT_FRAME
15419 @@ -934,35 +1177,35 @@ ENTRY(coprocessor_segment_overrun)
15420 pushl_cfi $do_coprocessor_segment_overrun
15421 jmp error_code
15422 CFI_ENDPROC
15423 -END(coprocessor_segment_overrun)
15424 +ENDPROC(coprocessor_segment_overrun)
15425
15426 ENTRY(invalid_TSS)
15427 RING0_EC_FRAME
15428 pushl_cfi $do_invalid_TSS
15429 jmp error_code
15430 CFI_ENDPROC
15431 -END(invalid_TSS)
15432 +ENDPROC(invalid_TSS)
15433
15434 ENTRY(segment_not_present)
15435 RING0_EC_FRAME
15436 pushl_cfi $do_segment_not_present
15437 jmp error_code
15438 CFI_ENDPROC
15439 -END(segment_not_present)
15440 +ENDPROC(segment_not_present)
15441
15442 ENTRY(stack_segment)
15443 RING0_EC_FRAME
15444 pushl_cfi $do_stack_segment
15445 jmp error_code
15446 CFI_ENDPROC
15447 -END(stack_segment)
15448 +ENDPROC(stack_segment)
15449
15450 ENTRY(alignment_check)
15451 RING0_EC_FRAME
15452 pushl_cfi $do_alignment_check
15453 jmp error_code
15454 CFI_ENDPROC
15455 -END(alignment_check)
15456 +ENDPROC(alignment_check)
15457
15458 ENTRY(divide_error)
15459 RING0_INT_FRAME
15460 @@ -970,7 +1213,7 @@ ENTRY(divide_error)
15461 pushl_cfi $do_divide_error
15462 jmp error_code
15463 CFI_ENDPROC
15464 -END(divide_error)
15465 +ENDPROC(divide_error)
15466
15467 #ifdef CONFIG_X86_MCE
15468 ENTRY(machine_check)
15469 @@ -979,7 +1222,7 @@ ENTRY(machine_check)
15470 pushl_cfi machine_check_vector
15471 jmp error_code
15472 CFI_ENDPROC
15473 -END(machine_check)
15474 +ENDPROC(machine_check)
15475 #endif
15476
15477 ENTRY(spurious_interrupt_bug)
15478 @@ -988,7 +1231,7 @@ ENTRY(spurious_interrupt_bug)
15479 pushl_cfi $do_spurious_interrupt_bug
15480 jmp error_code
15481 CFI_ENDPROC
15482 -END(spurious_interrupt_bug)
15483 +ENDPROC(spurious_interrupt_bug)
15484 /*
15485 * End of kprobes section
15486 */
15487 @@ -1100,7 +1343,7 @@ BUILD_INTERRUPT3(xen_hvm_callback_vector, XEN_HVM_EVTCHN_CALLBACK,
15488
15489 ENTRY(mcount)
15490 ret
15491 -END(mcount)
15492 +ENDPROC(mcount)
15493
15494 ENTRY(ftrace_caller)
15495 cmpl $0, function_trace_stop
15496 @@ -1129,7 +1372,7 @@ ftrace_graph_call:
15497 .globl ftrace_stub
15498 ftrace_stub:
15499 ret
15500 -END(ftrace_caller)
15501 +ENDPROC(ftrace_caller)
15502
15503 #else /* ! CONFIG_DYNAMIC_FTRACE */
15504
15505 @@ -1165,7 +1408,7 @@ trace:
15506 popl %ecx
15507 popl %eax
15508 jmp ftrace_stub
15509 -END(mcount)
15510 +ENDPROC(mcount)
15511 #endif /* CONFIG_DYNAMIC_FTRACE */
15512 #endif /* CONFIG_FUNCTION_TRACER */
15513
15514 @@ -1186,7 +1429,7 @@ ENTRY(ftrace_graph_caller)
15515 popl %ecx
15516 popl %eax
15517 ret
15518 -END(ftrace_graph_caller)
15519 +ENDPROC(ftrace_graph_caller)
15520
15521 .globl return_to_handler
15522 return_to_handler:
15523 @@ -1241,15 +1484,18 @@ error_code:
15524 movl $-1, PT_ORIG_EAX(%esp) # no syscall to restart
15525 REG_TO_PTGS %ecx
15526 SET_KERNEL_GS %ecx
15527 - movl $(__USER_DS), %ecx
15528 + movl $(__KERNEL_DS), %ecx
15529 movl %ecx, %ds
15530 movl %ecx, %es
15531 +
15532 + pax_enter_kernel
15533 +
15534 TRACE_IRQS_OFF
15535 movl %esp,%eax # pt_regs pointer
15536 call *%edi
15537 jmp ret_from_exception
15538 CFI_ENDPROC
15539 -END(page_fault)
15540 +ENDPROC(page_fault)
15541
15542 /*
15543 * Debug traps and NMI can happen at the one SYSENTER instruction
15544 @@ -1291,7 +1537,7 @@ debug_stack_correct:
15545 call do_debug
15546 jmp ret_from_exception
15547 CFI_ENDPROC
15548 -END(debug)
15549 +ENDPROC(debug)
15550
15551 /*
15552 * NMI is doubly nasty. It can happen _while_ we're handling
15553 @@ -1328,6 +1574,9 @@ nmi_stack_correct:
15554 xorl %edx,%edx # zero error code
15555 movl %esp,%eax # pt_regs pointer
15556 call do_nmi
15557 +
15558 + pax_exit_kernel
15559 +
15560 jmp restore_all_notrace
15561 CFI_ENDPROC
15562
15563 @@ -1364,12 +1613,15 @@ nmi_espfix_stack:
15564 FIXUP_ESPFIX_STACK # %eax == %esp
15565 xorl %edx,%edx # zero error code
15566 call do_nmi
15567 +
15568 + pax_exit_kernel
15569 +
15570 RESTORE_REGS
15571 lss 12+4(%esp), %esp # back to espfix stack
15572 CFI_ADJUST_CFA_OFFSET -24
15573 jmp irq_return
15574 CFI_ENDPROC
15575 -END(nmi)
15576 +ENDPROC(nmi)
15577
15578 ENTRY(int3)
15579 RING0_INT_FRAME
15580 @@ -1381,14 +1633,14 @@ ENTRY(int3)
15581 call do_int3
15582 jmp ret_from_exception
15583 CFI_ENDPROC
15584 -END(int3)
15585 +ENDPROC(int3)
15586
15587 ENTRY(general_protection)
15588 RING0_EC_FRAME
15589 pushl_cfi $do_general_protection
15590 jmp error_code
15591 CFI_ENDPROC
15592 -END(general_protection)
15593 +ENDPROC(general_protection)
15594
15595 #ifdef CONFIG_KVM_GUEST
15596 ENTRY(async_page_fault)
15597 @@ -1396,7 +1648,7 @@ ENTRY(async_page_fault)
15598 pushl_cfi $do_async_page_fault
15599 jmp error_code
15600 CFI_ENDPROC
15601 -END(async_page_fault)
15602 +ENDPROC(async_page_fault)
15603 #endif
15604
15605 /*
15606 diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S
15607 index 7d65133..27bce5b 100644
15608 --- a/arch/x86/kernel/entry_64.S
15609 +++ b/arch/x86/kernel/entry_64.S
15610 @@ -57,6 +57,8 @@
15611 #include <asm/percpu.h>
15612 #include <asm/asm.h>
15613 #include <linux/err.h>
15614 +#include <asm/pgtable.h>
15615 +#include <asm/alternative-asm.h>
15616
15617 /* Avoid __ASSEMBLER__'ifying <linux/audit.h> just for this. */
15618 #include <linux/elf-em.h>
15619 @@ -70,8 +72,9 @@
15620 #ifdef CONFIG_FUNCTION_TRACER
15621 #ifdef CONFIG_DYNAMIC_FTRACE
15622 ENTRY(mcount)
15623 + pax_force_retaddr
15624 retq
15625 -END(mcount)
15626 +ENDPROC(mcount)
15627
15628 ENTRY(ftrace_caller)
15629 cmpl $0, function_trace_stop
15630 @@ -94,8 +97,9 @@ GLOBAL(ftrace_graph_call)
15631 #endif
15632
15633 GLOBAL(ftrace_stub)
15634 + pax_force_retaddr
15635 retq
15636 -END(ftrace_caller)
15637 +ENDPROC(ftrace_caller)
15638
15639 #else /* ! CONFIG_DYNAMIC_FTRACE */
15640 ENTRY(mcount)
15641 @@ -114,6 +118,7 @@ ENTRY(mcount)
15642 #endif
15643
15644 GLOBAL(ftrace_stub)
15645 + pax_force_retaddr
15646 retq
15647
15648 trace:
15649 @@ -123,12 +128,13 @@ trace:
15650 movq 8(%rbp), %rsi
15651 subq $MCOUNT_INSN_SIZE, %rdi
15652
15653 + pax_force_fptr ftrace_trace_function
15654 call *ftrace_trace_function
15655
15656 MCOUNT_RESTORE_FRAME
15657
15658 jmp ftrace_stub
15659 -END(mcount)
15660 +ENDPROC(mcount)
15661 #endif /* CONFIG_DYNAMIC_FTRACE */
15662 #endif /* CONFIG_FUNCTION_TRACER */
15663
15664 @@ -148,8 +154,9 @@ ENTRY(ftrace_graph_caller)
15665
15666 MCOUNT_RESTORE_FRAME
15667
15668 + pax_force_retaddr
15669 retq
15670 -END(ftrace_graph_caller)
15671 +ENDPROC(ftrace_graph_caller)
15672
15673 GLOBAL(return_to_handler)
15674 subq $24, %rsp
15675 @@ -165,6 +172,7 @@ GLOBAL(return_to_handler)
15676 movq 8(%rsp), %rdx
15677 movq (%rsp), %rax
15678 addq $24, %rsp
15679 + pax_force_fptr %rdi
15680 jmp *%rdi
15681 #endif
15682
15683 @@ -180,6 +188,282 @@ ENTRY(native_usergs_sysret64)
15684 ENDPROC(native_usergs_sysret64)
15685 #endif /* CONFIG_PARAVIRT */
15686
15687 + .macro ljmpq sel, off
15688 +#if defined(CONFIG_MPSC) || defined(CONFIG_MCORE2) || defined (CONFIG_MATOM)
15689 + .byte 0x48; ljmp *1234f(%rip)
15690 + .pushsection .rodata
15691 + .align 16
15692 + 1234: .quad \off; .word \sel
15693 + .popsection
15694 +#else
15695 + pushq $\sel
15696 + pushq $\off
15697 + lretq
15698 +#endif
15699 + .endm
15700 +
15701 + .macro pax_enter_kernel
15702 + pax_set_fptr_mask
15703 +#ifdef CONFIG_PAX_KERNEXEC
15704 + call pax_enter_kernel
15705 +#endif
15706 + .endm
15707 +
15708 + .macro pax_exit_kernel
15709 +#ifdef CONFIG_PAX_KERNEXEC
15710 + call pax_exit_kernel
15711 +#endif
15712 + .endm
15713 +
15714 +#ifdef CONFIG_PAX_KERNEXEC
15715 +ENTRY(pax_enter_kernel)
15716 + pushq %rdi
15717 +
15718 +#ifdef CONFIG_PARAVIRT
15719 + PV_SAVE_REGS(CLBR_RDI)
15720 +#endif
15721 +
15722 + GET_CR0_INTO_RDI
15723 + bts $16,%rdi
15724 + jnc 3f
15725 + mov %cs,%edi
15726 + cmp $__KERNEL_CS,%edi
15727 + jnz 2f
15728 +1:
15729 +
15730 +#ifdef CONFIG_PARAVIRT
15731 + PV_RESTORE_REGS(CLBR_RDI)
15732 +#endif
15733 +
15734 + popq %rdi
15735 + pax_force_retaddr
15736 + retq
15737 +
15738 +2: ljmpq __KERNEL_CS,1f
15739 +3: ljmpq __KERNEXEC_KERNEL_CS,4f
15740 +4: SET_RDI_INTO_CR0
15741 + jmp 1b
15742 +ENDPROC(pax_enter_kernel)
15743 +
15744 +ENTRY(pax_exit_kernel)
15745 + pushq %rdi
15746 +
15747 +#ifdef CONFIG_PARAVIRT
15748 + PV_SAVE_REGS(CLBR_RDI)
15749 +#endif
15750 +
15751 + mov %cs,%rdi
15752 + cmp $__KERNEXEC_KERNEL_CS,%edi
15753 + jz 2f
15754 +1:
15755 +
15756 +#ifdef CONFIG_PARAVIRT
15757 + PV_RESTORE_REGS(CLBR_RDI);
15758 +#endif
15759 +
15760 + popq %rdi
15761 + pax_force_retaddr
15762 + retq
15763 +
15764 +2: GET_CR0_INTO_RDI
15765 + btr $16,%rdi
15766 + ljmpq __KERNEL_CS,3f
15767 +3: SET_RDI_INTO_CR0
15768 + jmp 1b
15769 +#ifdef CONFIG_PARAVIRT
15770 + PV_RESTORE_REGS(CLBR_RDI);
15771 +#endif
15772 +
15773 + popq %rdi
15774 + pax_force_retaddr
15775 + retq
15776 +ENDPROC(pax_exit_kernel)
15777 +#endif
15778 +
15779 + .macro pax_enter_kernel_user
15780 + pax_set_fptr_mask
15781 +#ifdef CONFIG_PAX_MEMORY_UDEREF
15782 + call pax_enter_kernel_user
15783 +#endif
15784 + .endm
15785 +
15786 + .macro pax_exit_kernel_user
15787 +#ifdef CONFIG_PAX_MEMORY_UDEREF
15788 + call pax_exit_kernel_user
15789 +#endif
15790 +#ifdef CONFIG_PAX_RANDKSTACK
15791 + pushq %rax
15792 + call pax_randomize_kstack
15793 + popq %rax
15794 +#endif
15795 + .endm
15796 +
15797 +#ifdef CONFIG_PAX_MEMORY_UDEREF
15798 +ENTRY(pax_enter_kernel_user)
15799 + pushq %rdi
15800 + pushq %rbx
15801 +
15802 +#ifdef CONFIG_PARAVIRT
15803 + PV_SAVE_REGS(CLBR_RDI)
15804 +#endif
15805 +
15806 + GET_CR3_INTO_RDI
15807 + mov %rdi,%rbx
15808 + add $__START_KERNEL_map,%rbx
15809 + sub phys_base(%rip),%rbx
15810 +
15811 +#ifdef CONFIG_PARAVIRT
15812 + pushq %rdi
15813 + cmpl $0, pv_info+PARAVIRT_enabled
15814 + jz 1f
15815 + i = 0
15816 + .rept USER_PGD_PTRS
15817 + mov i*8(%rbx),%rsi
15818 + mov $0,%sil
15819 + lea i*8(%rbx),%rdi
15820 + call PARA_INDIRECT(pv_mmu_ops+PV_MMU_set_pgd_batched)
15821 + i = i + 1
15822 + .endr
15823 + jmp 2f
15824 +1:
15825 +#endif
15826 +
15827 + i = 0
15828 + .rept USER_PGD_PTRS
15829 + movb $0,i*8(%rbx)
15830 + i = i + 1
15831 + .endr
15832 +
15833 +#ifdef CONFIG_PARAVIRT
15834 +2: popq %rdi
15835 +#endif
15836 + SET_RDI_INTO_CR3
15837 +
15838 +#ifdef CONFIG_PAX_KERNEXEC
15839 + GET_CR0_INTO_RDI
15840 + bts $16,%rdi
15841 + SET_RDI_INTO_CR0
15842 +#endif
15843 +
15844 +#ifdef CONFIG_PARAVIRT
15845 + PV_RESTORE_REGS(CLBR_RDI)
15846 +#endif
15847 +
15848 + popq %rbx
15849 + popq %rdi
15850 + pax_force_retaddr
15851 + retq
15852 +ENDPROC(pax_enter_kernel_user)
15853 +
15854 +ENTRY(pax_exit_kernel_user)
15855 + push %rdi
15856 +
15857 +#ifdef CONFIG_PARAVIRT
15858 + pushq %rbx
15859 + PV_SAVE_REGS(CLBR_RDI)
15860 +#endif
15861 +
15862 +#ifdef CONFIG_PAX_KERNEXEC
15863 + GET_CR0_INTO_RDI
15864 + btr $16,%rdi
15865 + SET_RDI_INTO_CR0
15866 +#endif
15867 +
15868 + GET_CR3_INTO_RDI
15869 + add $__START_KERNEL_map,%rdi
15870 + sub phys_base(%rip),%rdi
15871 +
15872 +#ifdef CONFIG_PARAVIRT
15873 + cmpl $0, pv_info+PARAVIRT_enabled
15874 + jz 1f
15875 + mov %rdi,%rbx
15876 + i = 0
15877 + .rept USER_PGD_PTRS
15878 + mov i*8(%rbx),%rsi
15879 + mov $0x67,%sil
15880 + lea i*8(%rbx),%rdi
15881 + call PARA_INDIRECT(pv_mmu_ops+PV_MMU_set_pgd_batched)
15882 + i = i + 1
15883 + .endr
15884 + jmp 2f
15885 +1:
15886 +#endif
15887 +
15888 + i = 0
15889 + .rept USER_PGD_PTRS
15890 + movb $0x67,i*8(%rdi)
15891 + i = i + 1
15892 + .endr
15893 +
15894 +#ifdef CONFIG_PARAVIRT
15895 +2: PV_RESTORE_REGS(CLBR_RDI)
15896 + popq %rbx
15897 +#endif
15898 +
15899 + popq %rdi
15900 + pax_force_retaddr
15901 + retq
15902 +ENDPROC(pax_exit_kernel_user)
15903 +#endif
15904 +
15905 +.macro pax_erase_kstack
15906 +#ifdef CONFIG_PAX_MEMORY_STACKLEAK
15907 + call pax_erase_kstack
15908 +#endif
15909 +.endm
15910 +
15911 +#ifdef CONFIG_PAX_MEMORY_STACKLEAK
15912 +/*
15913 + * r11: thread_info
15914 + * rcx, rdx: can be clobbered
15915 + */
15916 +ENTRY(pax_erase_kstack)
15917 + pushq %rdi
15918 + pushq %rax
15919 + pushq %r11
15920 +
15921 + GET_THREAD_INFO(%r11)
15922 + mov TI_lowest_stack(%r11), %rdi
15923 + mov $-0xBEEF, %rax
15924 + std
15925 +
15926 +1: mov %edi, %ecx
15927 + and $THREAD_SIZE_asm - 1, %ecx
15928 + shr $3, %ecx
15929 + repne scasq
15930 + jecxz 2f
15931 +
15932 + cmp $2*8, %ecx
15933 + jc 2f
15934 +
15935 + mov $2*8, %ecx
15936 + repe scasq
15937 + jecxz 2f
15938 + jne 1b
15939 +
15940 +2: cld
15941 + mov %esp, %ecx
15942 + sub %edi, %ecx
15943 +
15944 + cmp $THREAD_SIZE_asm, %rcx
15945 + jb 3f
15946 + ud2
15947 +3:
15948 +
15949 + shr $3, %ecx
15950 + rep stosq
15951 +
15952 + mov TI_task_thread_sp0(%r11), %rdi
15953 + sub $256, %rdi
15954 + mov %rdi, TI_lowest_stack(%r11)
15955 +
15956 + popq %r11
15957 + popq %rax
15958 + popq %rdi
15959 + pax_force_retaddr
15960 + ret
15961 +ENDPROC(pax_erase_kstack)
15962 +#endif
15963
15964 .macro TRACE_IRQS_IRETQ offset=ARGOFFSET
15965 #ifdef CONFIG_TRACE_IRQFLAGS
15966 @@ -271,8 +555,8 @@ ENDPROC(native_usergs_sysret64)
15967 .endm
15968
15969 .macro UNFAKE_STACK_FRAME
15970 - addq $8*6, %rsp
15971 - CFI_ADJUST_CFA_OFFSET -(6*8)
15972 + addq $8*6 + ARG_SKIP, %rsp
15973 + CFI_ADJUST_CFA_OFFSET -(6*8 + ARG_SKIP)
15974 .endm
15975
15976 /*
15977 @@ -359,7 +643,7 @@ ENDPROC(native_usergs_sysret64)
15978 movq %rsp, %rsi
15979
15980 leaq -RBP(%rsp),%rdi /* arg1 for handler */
15981 - testl $3, CS-RBP(%rsi)
15982 + testb $3, CS-RBP(%rsi)
15983 je 1f
15984 SWAPGS
15985 /*
15986 @@ -394,9 +678,10 @@ ENTRY(save_rest)
15987 movq_cfi r15, R15+16
15988 movq %r11, 8(%rsp) /* return address */
15989 FIXUP_TOP_OF_STACK %r11, 16
15990 + pax_force_retaddr
15991 ret
15992 CFI_ENDPROC
15993 -END(save_rest)
15994 +ENDPROC(save_rest)
15995
15996 /* save complete stack frame */
15997 .pushsection .kprobes.text, "ax"
15998 @@ -425,9 +710,10 @@ ENTRY(save_paranoid)
15999 js 1f /* negative -> in kernel */
16000 SWAPGS
16001 xorl %ebx,%ebx
16002 -1: ret
16003 +1: pax_force_retaddr_bts
16004 + ret
16005 CFI_ENDPROC
16006 -END(save_paranoid)
16007 +ENDPROC(save_paranoid)
16008 .popsection
16009
16010 /*
16011 @@ -449,7 +735,7 @@ ENTRY(ret_from_fork)
16012
16013 RESTORE_REST
16014
16015 - testl $3, CS-ARGOFFSET(%rsp) # from kernel_thread?
16016 + testb $3, CS-ARGOFFSET(%rsp) # from kernel_thread?
16017 jz retint_restore_args
16018
16019 testl $_TIF_IA32, TI_flags(%rcx) # 32-bit compat task needs IRET
16020 @@ -459,7 +745,7 @@ ENTRY(ret_from_fork)
16021 jmp ret_from_sys_call # go to the SYSRET fastpath
16022
16023 CFI_ENDPROC
16024 -END(ret_from_fork)
16025 +ENDPROC(ret_from_fork)
16026
16027 /*
16028 * System call entry. Up to 6 arguments in registers are supported.
16029 @@ -495,7 +781,7 @@ END(ret_from_fork)
16030 ENTRY(system_call)
16031 CFI_STARTPROC simple
16032 CFI_SIGNAL_FRAME
16033 - CFI_DEF_CFA rsp,KERNEL_STACK_OFFSET
16034 + CFI_DEF_CFA rsp,0
16035 CFI_REGISTER rip,rcx
16036 /*CFI_REGISTER rflags,r11*/
16037 SWAPGS_UNSAFE_STACK
16038 @@ -508,16 +794,18 @@ GLOBAL(system_call_after_swapgs)
16039
16040 movq %rsp,PER_CPU_VAR(old_rsp)
16041 movq PER_CPU_VAR(kernel_stack),%rsp
16042 + SAVE_ARGS 8*6,0
16043 + pax_enter_kernel_user
16044 /*
16045 * No need to follow this irqs off/on section - it's straight
16046 * and short:
16047 */
16048 ENABLE_INTERRUPTS(CLBR_NONE)
16049 - SAVE_ARGS 8,0
16050 movq %rax,ORIG_RAX-ARGOFFSET(%rsp)
16051 movq %rcx,RIP-ARGOFFSET(%rsp)
16052 CFI_REL_OFFSET rip,RIP-ARGOFFSET
16053 - testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
16054 + GET_THREAD_INFO(%rcx)
16055 + testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags(%rcx)
16056 jnz tracesys
16057 system_call_fastpath:
16058 #if __SYSCALL_MASK == ~0
16059 @@ -527,7 +815,7 @@ system_call_fastpath:
16060 cmpl $__NR_syscall_max,%eax
16061 #endif
16062 ja badsys
16063 - movq %r10,%rcx
16064 + movq R10-ARGOFFSET(%rsp),%rcx
16065 call *sys_call_table(,%rax,8) # XXX: rip relative
16066 movq %rax,RAX-ARGOFFSET(%rsp)
16067 /*
16068 @@ -541,10 +829,13 @@ sysret_check:
16069 LOCKDEP_SYS_EXIT
16070 DISABLE_INTERRUPTS(CLBR_NONE)
16071 TRACE_IRQS_OFF
16072 - movl TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET),%edx
16073 + GET_THREAD_INFO(%rcx)
16074 + movl TI_flags(%rcx),%edx
16075 andl %edi,%edx
16076 jnz sysret_careful
16077 CFI_REMEMBER_STATE
16078 + pax_exit_kernel_user
16079 + pax_erase_kstack
16080 /*
16081 * sysretq will re-enable interrupts:
16082 */
16083 @@ -596,14 +887,18 @@ badsys:
16084 * jump back to the normal fast path.
16085 */
16086 auditsys:
16087 - movq %r10,%r9 /* 6th arg: 4th syscall arg */
16088 + movq R10-ARGOFFSET(%rsp),%r9 /* 6th arg: 4th syscall arg */
16089 movq %rdx,%r8 /* 5th arg: 3rd syscall arg */
16090 movq %rsi,%rcx /* 4th arg: 2nd syscall arg */
16091 movq %rdi,%rdx /* 3rd arg: 1st syscall arg */
16092 movq %rax,%rsi /* 2nd arg: syscall number */
16093 movl $AUDIT_ARCH_X86_64,%edi /* 1st arg: audit arch */
16094 call __audit_syscall_entry
16095 +
16096 + pax_erase_kstack
16097 +
16098 LOAD_ARGS 0 /* reload call-clobbered registers */
16099 + pax_set_fptr_mask
16100 jmp system_call_fastpath
16101
16102 /*
16103 @@ -624,7 +919,7 @@ sysret_audit:
16104 /* Do syscall tracing */
16105 tracesys:
16106 #ifdef CONFIG_AUDITSYSCALL
16107 - testl $(_TIF_WORK_SYSCALL_ENTRY & ~_TIF_SYSCALL_AUDIT),TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
16108 + testl $(_TIF_WORK_SYSCALL_ENTRY & ~_TIF_SYSCALL_AUDIT),TI_flags(%rcx)
16109 jz auditsys
16110 #endif
16111 SAVE_REST
16112 @@ -632,12 +927,16 @@ tracesys:
16113 FIXUP_TOP_OF_STACK %rdi
16114 movq %rsp,%rdi
16115 call syscall_trace_enter
16116 +
16117 + pax_erase_kstack
16118 +
16119 /*
16120 * Reload arg registers from stack in case ptrace changed them.
16121 * We don't reload %rax because syscall_trace_enter() returned
16122 * the value it wants us to use in the table lookup.
16123 */
16124 LOAD_ARGS ARGOFFSET, 1
16125 + pax_set_fptr_mask
16126 RESTORE_REST
16127 #if __SYSCALL_MASK == ~0
16128 cmpq $__NR_syscall_max,%rax
16129 @@ -646,7 +945,7 @@ tracesys:
16130 cmpl $__NR_syscall_max,%eax
16131 #endif
16132 ja int_ret_from_sys_call /* RAX(%rsp) set to -ENOSYS above */
16133 - movq %r10,%rcx /* fixup for C */
16134 + movq R10-ARGOFFSET(%rsp),%rcx /* fixup for C */
16135 call *sys_call_table(,%rax,8)
16136 movq %rax,RAX-ARGOFFSET(%rsp)
16137 /* Use IRET because user could have changed frame */
16138 @@ -667,6 +966,7 @@ GLOBAL(int_with_check)
16139 andl %edi,%edx
16140 jnz int_careful
16141 andl $~TS_COMPAT,TI_status(%rcx)
16142 + pax_erase_kstack
16143 jmp retint_swapgs
16144
16145 /* Either reschedule or signal or syscall exit tracking needed. */
16146 @@ -713,7 +1013,7 @@ int_restore_rest:
16147 TRACE_IRQS_OFF
16148 jmp int_with_check
16149 CFI_ENDPROC
16150 -END(system_call)
16151 +ENDPROC(system_call)
16152
16153 /*
16154 * Certain special system calls that need to save a complete full stack frame.
16155 @@ -729,7 +1029,7 @@ ENTRY(\label)
16156 call \func
16157 jmp ptregscall_common
16158 CFI_ENDPROC
16159 -END(\label)
16160 +ENDPROC(\label)
16161 .endm
16162
16163 PTREGSCALL stub_clone, sys_clone, %r8
16164 @@ -747,9 +1047,10 @@ ENTRY(ptregscall_common)
16165 movq_cfi_restore R12+8, r12
16166 movq_cfi_restore RBP+8, rbp
16167 movq_cfi_restore RBX+8, rbx
16168 + pax_force_retaddr
16169 ret $REST_SKIP /* pop extended registers */
16170 CFI_ENDPROC
16171 -END(ptregscall_common)
16172 +ENDPROC(ptregscall_common)
16173
16174 ENTRY(stub_execve)
16175 CFI_STARTPROC
16176 @@ -764,7 +1065,7 @@ ENTRY(stub_execve)
16177 RESTORE_REST
16178 jmp int_ret_from_sys_call
16179 CFI_ENDPROC
16180 -END(stub_execve)
16181 +ENDPROC(stub_execve)
16182
16183 /*
16184 * sigreturn is special because it needs to restore all registers on return.
16185 @@ -782,7 +1083,7 @@ ENTRY(stub_rt_sigreturn)
16186 RESTORE_REST
16187 jmp int_ret_from_sys_call
16188 CFI_ENDPROC
16189 -END(stub_rt_sigreturn)
16190 +ENDPROC(stub_rt_sigreturn)
16191
16192 #ifdef CONFIG_X86_X32_ABI
16193 PTREGSCALL stub_x32_sigaltstack, sys32_sigaltstack, %rdx
16194 @@ -851,7 +1152,7 @@ vector=vector+1
16195 2: jmp common_interrupt
16196 .endr
16197 CFI_ENDPROC
16198 -END(irq_entries_start)
16199 +ENDPROC(irq_entries_start)
16200
16201 .previous
16202 END(interrupt)
16203 @@ -871,6 +1172,16 @@ END(interrupt)
16204 subq $ORIG_RAX-RBP, %rsp
16205 CFI_ADJUST_CFA_OFFSET ORIG_RAX-RBP
16206 SAVE_ARGS_IRQ
16207 +#ifdef CONFIG_PAX_MEMORY_UDEREF
16208 + testb $3, CS(%rdi)
16209 + jnz 1f
16210 + pax_enter_kernel
16211 + jmp 2f
16212 +1: pax_enter_kernel_user
16213 +2:
16214 +#else
16215 + pax_enter_kernel
16216 +#endif
16217 call \func
16218 .endm
16219
16220 @@ -902,7 +1213,7 @@ ret_from_intr:
16221
16222 exit_intr:
16223 GET_THREAD_INFO(%rcx)
16224 - testl $3,CS-ARGOFFSET(%rsp)
16225 + testb $3,CS-ARGOFFSET(%rsp)
16226 je retint_kernel
16227
16228 /* Interrupt came from user space */
16229 @@ -924,12 +1235,15 @@ retint_swapgs: /* return to user-space */
16230 * The iretq could re-enable interrupts:
16231 */
16232 DISABLE_INTERRUPTS(CLBR_ANY)
16233 + pax_exit_kernel_user
16234 TRACE_IRQS_IRETQ
16235 SWAPGS
16236 jmp restore_args
16237
16238 retint_restore_args: /* return to kernel space */
16239 DISABLE_INTERRUPTS(CLBR_ANY)
16240 + pax_exit_kernel
16241 + pax_force_retaddr RIP-ARGOFFSET
16242 /*
16243 * The iretq could re-enable interrupts:
16244 */
16245 @@ -1012,7 +1326,7 @@ ENTRY(retint_kernel)
16246 #endif
16247
16248 CFI_ENDPROC
16249 -END(common_interrupt)
16250 +ENDPROC(common_interrupt)
16251 /*
16252 * End of kprobes section
16253 */
16254 @@ -1029,7 +1343,7 @@ ENTRY(\sym)
16255 interrupt \do_sym
16256 jmp ret_from_intr
16257 CFI_ENDPROC
16258 -END(\sym)
16259 +ENDPROC(\sym)
16260 .endm
16261
16262 #ifdef CONFIG_SMP
16263 @@ -1102,12 +1416,22 @@ ENTRY(\sym)
16264 CFI_ADJUST_CFA_OFFSET ORIG_RAX-R15
16265 call error_entry
16266 DEFAULT_FRAME 0
16267 +#ifdef CONFIG_PAX_MEMORY_UDEREF
16268 + testb $3, CS(%rsp)
16269 + jnz 1f
16270 + pax_enter_kernel
16271 + jmp 2f
16272 +1: pax_enter_kernel_user
16273 +2:
16274 +#else
16275 + pax_enter_kernel
16276 +#endif
16277 movq %rsp,%rdi /* pt_regs pointer */
16278 xorl %esi,%esi /* no error code */
16279 call \do_sym
16280 jmp error_exit /* %ebx: no swapgs flag */
16281 CFI_ENDPROC
16282 -END(\sym)
16283 +ENDPROC(\sym)
16284 .endm
16285
16286 .macro paranoidzeroentry sym do_sym
16287 @@ -1119,15 +1443,25 @@ ENTRY(\sym)
16288 CFI_ADJUST_CFA_OFFSET ORIG_RAX-R15
16289 call save_paranoid
16290 TRACE_IRQS_OFF
16291 +#ifdef CONFIG_PAX_MEMORY_UDEREF
16292 + testb $3, CS(%rsp)
16293 + jnz 1f
16294 + pax_enter_kernel
16295 + jmp 2f
16296 +1: pax_enter_kernel_user
16297 +2:
16298 +#else
16299 + pax_enter_kernel
16300 +#endif
16301 movq %rsp,%rdi /* pt_regs pointer */
16302 xorl %esi,%esi /* no error code */
16303 call \do_sym
16304 jmp paranoid_exit /* %ebx: no swapgs flag */
16305 CFI_ENDPROC
16306 -END(\sym)
16307 +ENDPROC(\sym)
16308 .endm
16309
16310 -#define INIT_TSS_IST(x) PER_CPU_VAR(init_tss) + (TSS_ist + ((x) - 1) * 8)
16311 +#define INIT_TSS_IST(x) (TSS_ist + ((x) - 1) * 8)(%r12)
16312 .macro paranoidzeroentry_ist sym do_sym ist
16313 ENTRY(\sym)
16314 INTR_FRAME
16315 @@ -1137,14 +1471,30 @@ ENTRY(\sym)
16316 CFI_ADJUST_CFA_OFFSET ORIG_RAX-R15
16317 call save_paranoid
16318 TRACE_IRQS_OFF_DEBUG
16319 +#ifdef CONFIG_PAX_MEMORY_UDEREF
16320 + testb $3, CS(%rsp)
16321 + jnz 1f
16322 + pax_enter_kernel
16323 + jmp 2f
16324 +1: pax_enter_kernel_user
16325 +2:
16326 +#else
16327 + pax_enter_kernel
16328 +#endif
16329 movq %rsp,%rdi /* pt_regs pointer */
16330 xorl %esi,%esi /* no error code */
16331 +#ifdef CONFIG_SMP
16332 + imul $TSS_size, PER_CPU_VAR(cpu_number), %r12d
16333 + lea init_tss(%r12), %r12
16334 +#else
16335 + lea init_tss(%rip), %r12
16336 +#endif
16337 subq $EXCEPTION_STKSZ, INIT_TSS_IST(\ist)
16338 call \do_sym
16339 addq $EXCEPTION_STKSZ, INIT_TSS_IST(\ist)
16340 jmp paranoid_exit /* %ebx: no swapgs flag */
16341 CFI_ENDPROC
16342 -END(\sym)
16343 +ENDPROC(\sym)
16344 .endm
16345
16346 .macro errorentry sym do_sym
16347 @@ -1155,13 +1505,23 @@ ENTRY(\sym)
16348 CFI_ADJUST_CFA_OFFSET ORIG_RAX-R15
16349 call error_entry
16350 DEFAULT_FRAME 0
16351 +#ifdef CONFIG_PAX_MEMORY_UDEREF
16352 + testb $3, CS(%rsp)
16353 + jnz 1f
16354 + pax_enter_kernel
16355 + jmp 2f
16356 +1: pax_enter_kernel_user
16357 +2:
16358 +#else
16359 + pax_enter_kernel
16360 +#endif
16361 movq %rsp,%rdi /* pt_regs pointer */
16362 movq ORIG_RAX(%rsp),%rsi /* get error code */
16363 movq $-1,ORIG_RAX(%rsp) /* no syscall to restart */
16364 call \do_sym
16365 jmp error_exit /* %ebx: no swapgs flag */
16366 CFI_ENDPROC
16367 -END(\sym)
16368 +ENDPROC(\sym)
16369 .endm
16370
16371 /* error code is on the stack already */
16372 @@ -1174,13 +1534,23 @@ ENTRY(\sym)
16373 call save_paranoid
16374 DEFAULT_FRAME 0
16375 TRACE_IRQS_OFF
16376 +#ifdef CONFIG_PAX_MEMORY_UDEREF
16377 + testb $3, CS(%rsp)
16378 + jnz 1f
16379 + pax_enter_kernel
16380 + jmp 2f
16381 +1: pax_enter_kernel_user
16382 +2:
16383 +#else
16384 + pax_enter_kernel
16385 +#endif
16386 movq %rsp,%rdi /* pt_regs pointer */
16387 movq ORIG_RAX(%rsp),%rsi /* get error code */
16388 movq $-1,ORIG_RAX(%rsp) /* no syscall to restart */
16389 call \do_sym
16390 jmp paranoid_exit /* %ebx: no swapgs flag */
16391 CFI_ENDPROC
16392 -END(\sym)
16393 +ENDPROC(\sym)
16394 .endm
16395
16396 zeroentry divide_error do_divide_error
16397 @@ -1210,9 +1580,10 @@ gs_change:
16398 2: mfence /* workaround */
16399 SWAPGS
16400 popfq_cfi
16401 + pax_force_retaddr
16402 ret
16403 CFI_ENDPROC
16404 -END(native_load_gs_index)
16405 +ENDPROC(native_load_gs_index)
16406
16407 _ASM_EXTABLE(gs_change,bad_gs)
16408 .section .fixup,"ax"
16409 @@ -1231,13 +1602,14 @@ ENTRY(kernel_thread_helper)
16410 * Here we are in the child and the registers are set as they were
16411 * at kernel_thread() invocation in the parent.
16412 */
16413 + pax_force_fptr %rsi
16414 call *%rsi
16415 # exit
16416 mov %eax, %edi
16417 call do_exit
16418 ud2 # padding for call trace
16419 CFI_ENDPROC
16420 -END(kernel_thread_helper)
16421 +ENDPROC(kernel_thread_helper)
16422
16423 /*
16424 * execve(). This function needs to use IRET, not SYSRET, to set up all state properly.
16425 @@ -1264,11 +1636,11 @@ ENTRY(kernel_execve)
16426 RESTORE_REST
16427 testq %rax,%rax
16428 je int_ret_from_sys_call
16429 - RESTORE_ARGS
16430 UNFAKE_STACK_FRAME
16431 + pax_force_retaddr
16432 ret
16433 CFI_ENDPROC
16434 -END(kernel_execve)
16435 +ENDPROC(kernel_execve)
16436
16437 /* Call softirq on interrupt stack. Interrupts are off. */
16438 ENTRY(call_softirq)
16439 @@ -1286,9 +1658,10 @@ ENTRY(call_softirq)
16440 CFI_DEF_CFA_REGISTER rsp
16441 CFI_ADJUST_CFA_OFFSET -8
16442 decl PER_CPU_VAR(irq_count)
16443 + pax_force_retaddr
16444 ret
16445 CFI_ENDPROC
16446 -END(call_softirq)
16447 +ENDPROC(call_softirq)
16448
16449 #ifdef CONFIG_XEN
16450 zeroentry xen_hypervisor_callback xen_do_hypervisor_callback
16451 @@ -1326,7 +1699,7 @@ ENTRY(xen_do_hypervisor_callback) # do_hypervisor_callback(struct *pt_regs)
16452 decl PER_CPU_VAR(irq_count)
16453 jmp error_exit
16454 CFI_ENDPROC
16455 -END(xen_do_hypervisor_callback)
16456 +ENDPROC(xen_do_hypervisor_callback)
16457
16458 /*
16459 * Hypervisor uses this for application faults while it executes.
16460 @@ -1385,7 +1758,7 @@ ENTRY(xen_failsafe_callback)
16461 SAVE_ALL
16462 jmp error_exit
16463 CFI_ENDPROC
16464 -END(xen_failsafe_callback)
16465 +ENDPROC(xen_failsafe_callback)
16466
16467 apicinterrupt XEN_HVM_EVTCHN_CALLBACK \
16468 xen_hvm_callback_vector xen_evtchn_do_upcall
16469 @@ -1434,16 +1807,31 @@ ENTRY(paranoid_exit)
16470 TRACE_IRQS_OFF_DEBUG
16471 testl %ebx,%ebx /* swapgs needed? */
16472 jnz paranoid_restore
16473 - testl $3,CS(%rsp)
16474 + testb $3,CS(%rsp)
16475 jnz paranoid_userspace
16476 +#ifdef CONFIG_PAX_MEMORY_UDEREF
16477 + pax_exit_kernel
16478 + TRACE_IRQS_IRETQ 0
16479 + SWAPGS_UNSAFE_STACK
16480 + RESTORE_ALL 8
16481 + pax_force_retaddr_bts
16482 + jmp irq_return
16483 +#endif
16484 paranoid_swapgs:
16485 +#ifdef CONFIG_PAX_MEMORY_UDEREF
16486 + pax_exit_kernel_user
16487 +#else
16488 + pax_exit_kernel
16489 +#endif
16490 TRACE_IRQS_IRETQ 0
16491 SWAPGS_UNSAFE_STACK
16492 RESTORE_ALL 8
16493 jmp irq_return
16494 paranoid_restore:
16495 + pax_exit_kernel
16496 TRACE_IRQS_IRETQ_DEBUG 0
16497 RESTORE_ALL 8
16498 + pax_force_retaddr_bts
16499 jmp irq_return
16500 paranoid_userspace:
16501 GET_THREAD_INFO(%rcx)
16502 @@ -1472,7 +1860,7 @@ paranoid_schedule:
16503 TRACE_IRQS_OFF
16504 jmp paranoid_userspace
16505 CFI_ENDPROC
16506 -END(paranoid_exit)
16507 +ENDPROC(paranoid_exit)
16508
16509 /*
16510 * Exception entry point. This expects an error code/orig_rax on the stack.
16511 @@ -1499,12 +1887,13 @@ ENTRY(error_entry)
16512 movq_cfi r14, R14+8
16513 movq_cfi r15, R15+8
16514 xorl %ebx,%ebx
16515 - testl $3,CS+8(%rsp)
16516 + testb $3,CS+8(%rsp)
16517 je error_kernelspace
16518 error_swapgs:
16519 SWAPGS
16520 error_sti:
16521 TRACE_IRQS_OFF
16522 + pax_force_retaddr_bts
16523 ret
16524
16525 /*
16526 @@ -1531,7 +1920,7 @@ bstep_iret:
16527 movq %rcx,RIP+8(%rsp)
16528 jmp error_swapgs
16529 CFI_ENDPROC
16530 -END(error_entry)
16531 +ENDPROC(error_entry)
16532
16533
16534 /* ebx: no swapgs flag (1: don't need swapgs, 0: need it) */
16535 @@ -1551,7 +1940,7 @@ ENTRY(error_exit)
16536 jnz retint_careful
16537 jmp retint_swapgs
16538 CFI_ENDPROC
16539 -END(error_exit)
16540 +ENDPROC(error_exit)
16541
16542 /*
16543 * Test if a given stack is an NMI stack or not.
16544 @@ -1609,9 +1998,11 @@ ENTRY(nmi)
16545 * If %cs was not the kernel segment, then the NMI triggered in user
16546 * space, which means it is definitely not nested.
16547 */
16548 + cmpl $__KERNEXEC_KERNEL_CS, 16(%rsp)
16549 + je 1f
16550 cmpl $__KERNEL_CS, 16(%rsp)
16551 jne first_nmi
16552 -
16553 +1:
16554 /*
16555 * Check the special variable on the stack to see if NMIs are
16556 * executing.
16557 @@ -1758,6 +2149,16 @@ end_repeat_nmi:
16558 */
16559 call save_paranoid
16560 DEFAULT_FRAME 0
16561 +#ifdef CONFIG_PAX_MEMORY_UDEREF
16562 + testb $3, CS(%rsp)
16563 + jnz 1f
16564 + pax_enter_kernel
16565 + jmp 2f
16566 +1: pax_enter_kernel_user
16567 +2:
16568 +#else
16569 + pax_enter_kernel
16570 +#endif
16571 /* paranoidentry do_nmi, 0; without TRACE_IRQS_OFF */
16572 movq %rsp,%rdi
16573 movq $-1,%rsi
16574 @@ -1765,21 +2166,32 @@ end_repeat_nmi:
16575 testl %ebx,%ebx /* swapgs needed? */
16576 jnz nmi_restore
16577 nmi_swapgs:
16578 +#ifdef CONFIG_PAX_MEMORY_UDEREF
16579 + pax_exit_kernel_user
16580 +#else
16581 + pax_exit_kernel
16582 +#endif
16583 SWAPGS_UNSAFE_STACK
16584 + RESTORE_ALL 8
16585 + /* Clear the NMI executing stack variable */
16586 + movq $0, 10*8(%rsp)
16587 + jmp irq_return
16588 nmi_restore:
16589 + pax_exit_kernel
16590 RESTORE_ALL 8
16591 + pax_force_retaddr_bts
16592 /* Clear the NMI executing stack variable */
16593 movq $0, 10*8(%rsp)
16594 jmp irq_return
16595 CFI_ENDPROC
16596 -END(nmi)
16597 +ENDPROC(nmi)
16598
16599 ENTRY(ignore_sysret)
16600 CFI_STARTPROC
16601 mov $-ENOSYS,%eax
16602 sysret
16603 CFI_ENDPROC
16604 -END(ignore_sysret)
16605 +ENDPROC(ignore_sysret)
16606
16607 /*
16608 * End of kprobes section
16609 diff --git a/arch/x86/kernel/ftrace.c b/arch/x86/kernel/ftrace.c
16610 index c3a7cb4..3ad00dc 100644
16611 --- a/arch/x86/kernel/ftrace.c
16612 +++ b/arch/x86/kernel/ftrace.c
16613 @@ -105,6 +105,8 @@ ftrace_modify_code_direct(unsigned long ip, unsigned const char *old_code,
16614 {
16615 unsigned char replaced[MCOUNT_INSN_SIZE];
16616
16617 + ip = ktla_ktva(ip);
16618 +
16619 /*
16620 * Note: Due to modules and __init, code can
16621 * disappear and change, we need to protect against faulting
16622 @@ -212,7 +214,7 @@ int ftrace_update_ftrace_func(ftrace_func_t func)
16623 unsigned char old[MCOUNT_INSN_SIZE], *new;
16624 int ret;
16625
16626 - memcpy(old, &ftrace_call, MCOUNT_INSN_SIZE);
16627 + memcpy(old, (void *)ktla_ktva((unsigned long)ftrace_call), MCOUNT_INSN_SIZE);
16628 new = ftrace_call_replace(ip, (unsigned long)func);
16629
16630 /* See comment above by declaration of modifying_ftrace_code */
16631 @@ -605,6 +607,8 @@ static int ftrace_mod_jmp(unsigned long ip,
16632 {
16633 unsigned char code[MCOUNT_INSN_SIZE];
16634
16635 + ip = ktla_ktva(ip);
16636 +
16637 if (probe_kernel_read(code, (void *)ip, MCOUNT_INSN_SIZE))
16638 return -EFAULT;
16639
16640 diff --git a/arch/x86/kernel/head32.c b/arch/x86/kernel/head32.c
16641 index c18f59d..9c0c9f6 100644
16642 --- a/arch/x86/kernel/head32.c
16643 +++ b/arch/x86/kernel/head32.c
16644 @@ -18,6 +18,7 @@
16645 #include <asm/io_apic.h>
16646 #include <asm/bios_ebda.h>
16647 #include <asm/tlbflush.h>
16648 +#include <asm/boot.h>
16649
16650 static void __init i386_default_early_setup(void)
16651 {
16652 @@ -30,8 +31,7 @@ static void __init i386_default_early_setup(void)
16653
16654 void __init i386_start_kernel(void)
16655 {
16656 - memblock_reserve(__pa_symbol(&_text),
16657 - __pa_symbol(&__bss_stop) - __pa_symbol(&_text));
16658 + memblock_reserve(LOAD_PHYSICAL_ADDR, __pa_symbol(&__bss_stop) - LOAD_PHYSICAL_ADDR);
16659
16660 #ifdef CONFIG_BLK_DEV_INITRD
16661 /* Reserve INITRD */
16662 diff --git a/arch/x86/kernel/head_32.S b/arch/x86/kernel/head_32.S
16663 index d42ab17..cb1b997 100644
16664 --- a/arch/x86/kernel/head_32.S
16665 +++ b/arch/x86/kernel/head_32.S
16666 @@ -26,6 +26,12 @@
16667 /* Physical address */
16668 #define pa(X) ((X) - __PAGE_OFFSET)
16669
16670 +#ifdef CONFIG_PAX_KERNEXEC
16671 +#define ta(X) (X)
16672 +#else
16673 +#define ta(X) ((X) - __PAGE_OFFSET)
16674 +#endif
16675 +
16676 /*
16677 * References to members of the new_cpu_data structure.
16678 */
16679 @@ -55,11 +61,7 @@
16680 * and small than max_low_pfn, otherwise will waste some page table entries
16681 */
16682
16683 -#if PTRS_PER_PMD > 1
16684 -#define PAGE_TABLE_SIZE(pages) (((pages) / PTRS_PER_PMD) + PTRS_PER_PGD)
16685 -#else
16686 -#define PAGE_TABLE_SIZE(pages) ((pages) / PTRS_PER_PGD)
16687 -#endif
16688 +#define PAGE_TABLE_SIZE(pages) ((pages) / PTRS_PER_PTE)
16689
16690 /* Number of possible pages in the lowmem region */
16691 LOWMEM_PAGES = (((1<<32) - __PAGE_OFFSET) >> PAGE_SHIFT)
16692 @@ -78,6 +80,12 @@ INIT_MAP_SIZE = PAGE_TABLE_SIZE(KERNEL_PAGES) * PAGE_SIZE
16693 RESERVE_BRK(pagetables, INIT_MAP_SIZE)
16694
16695 /*
16696 + * Real beginning of normal "text" segment
16697 + */
16698 +ENTRY(stext)
16699 +ENTRY(_stext)
16700 +
16701 +/*
16702 * 32-bit kernel entrypoint; only used by the boot CPU. On entry,
16703 * %esi points to the real-mode code as a 32-bit pointer.
16704 * CS and DS must be 4 GB flat segments, but we don't depend on
16705 @@ -85,6 +93,13 @@ RESERVE_BRK(pagetables, INIT_MAP_SIZE)
16706 * can.
16707 */
16708 __HEAD
16709 +
16710 +#ifdef CONFIG_PAX_KERNEXEC
16711 + jmp startup_32
16712 +/* PaX: fill first page in .text with int3 to catch NULL derefs in kernel mode */
16713 +.fill PAGE_SIZE-5,1,0xcc
16714 +#endif
16715 +
16716 ENTRY(startup_32)
16717 movl pa(stack_start),%ecx
16718
16719 @@ -106,6 +121,57 @@ ENTRY(startup_32)
16720 2:
16721 leal -__PAGE_OFFSET(%ecx),%esp
16722
16723 +#ifdef CONFIG_SMP
16724 + movl $pa(cpu_gdt_table),%edi
16725 + movl $__per_cpu_load,%eax
16726 + movw %ax,__KERNEL_PERCPU + 2(%edi)
16727 + rorl $16,%eax
16728 + movb %al,__KERNEL_PERCPU + 4(%edi)
16729 + movb %ah,__KERNEL_PERCPU + 7(%edi)
16730 + movl $__per_cpu_end - 1,%eax
16731 + subl $__per_cpu_start,%eax
16732 + movw %ax,__KERNEL_PERCPU + 0(%edi)
16733 +#endif
16734 +
16735 +#ifdef CONFIG_PAX_MEMORY_UDEREF
16736 + movl $NR_CPUS,%ecx
16737 + movl $pa(cpu_gdt_table),%edi
16738 +1:
16739 + movl $((((__PAGE_OFFSET-1) & 0xf0000000) >> 12) | 0x00c09700),GDT_ENTRY_KERNEL_DS * 8 + 4(%edi)
16740 + movl $((((__PAGE_OFFSET-1) & 0xf0000000) >> 12) | 0x00c0fb00),GDT_ENTRY_DEFAULT_USER_CS * 8 + 4(%edi)
16741 + movl $((((__PAGE_OFFSET-1) & 0xf0000000) >> 12) | 0x00c0f300),GDT_ENTRY_DEFAULT_USER_DS * 8 + 4(%edi)
16742 + addl $PAGE_SIZE_asm,%edi
16743 + loop 1b
16744 +#endif
16745 +
16746 +#ifdef CONFIG_PAX_KERNEXEC
16747 + movl $pa(boot_gdt),%edi
16748 + movl $__LOAD_PHYSICAL_ADDR,%eax
16749 + movw %ax,__BOOT_CS + 2(%edi)
16750 + rorl $16,%eax
16751 + movb %al,__BOOT_CS + 4(%edi)
16752 + movb %ah,__BOOT_CS + 7(%edi)
16753 + rorl $16,%eax
16754 +
16755 + ljmp $(__BOOT_CS),$1f
16756 +1:
16757 +
16758 + movl $NR_CPUS,%ecx
16759 + movl $pa(cpu_gdt_table),%edi
16760 + addl $__PAGE_OFFSET,%eax
16761 +1:
16762 + movw %ax,__KERNEL_CS + 2(%edi)
16763 + movw %ax,__KERNEXEC_KERNEL_CS + 2(%edi)
16764 + rorl $16,%eax
16765 + movb %al,__KERNEL_CS + 4(%edi)
16766 + movb %al,__KERNEXEC_KERNEL_CS + 4(%edi)
16767 + movb %ah,__KERNEL_CS + 7(%edi)
16768 + movb %ah,__KERNEXEC_KERNEL_CS + 7(%edi)
16769 + rorl $16,%eax
16770 + addl $PAGE_SIZE_asm,%edi
16771 + loop 1b
16772 +#endif
16773 +
16774 /*
16775 * Clear BSS first so that there are no surprises...
16776 */
16777 @@ -196,8 +262,11 @@ ENTRY(startup_32)
16778 movl %eax, pa(max_pfn_mapped)
16779
16780 /* Do early initialization of the fixmap area */
16781 - movl $pa(initial_pg_fixmap)+PDE_IDENT_ATTR,%eax
16782 - movl %eax,pa(initial_pg_pmd+0x1000*KPMDS-8)
16783 +#ifdef CONFIG_COMPAT_VDSO
16784 + movl $pa(initial_pg_fixmap)+PDE_IDENT_ATTR+_PAGE_USER,pa(initial_pg_pmd+0x1000*KPMDS-8)
16785 +#else
16786 + movl $pa(initial_pg_fixmap)+PDE_IDENT_ATTR,pa(initial_pg_pmd+0x1000*KPMDS-8)
16787 +#endif
16788 #else /* Not PAE */
16789
16790 page_pde_offset = (__PAGE_OFFSET >> 20);
16791 @@ -227,8 +296,11 @@ page_pde_offset = (__PAGE_OFFSET >> 20);
16792 movl %eax, pa(max_pfn_mapped)
16793
16794 /* Do early initialization of the fixmap area */
16795 - movl $pa(initial_pg_fixmap)+PDE_IDENT_ATTR,%eax
16796 - movl %eax,pa(initial_page_table+0xffc)
16797 +#ifdef CONFIG_COMPAT_VDSO
16798 + movl $pa(initial_pg_fixmap)+PDE_IDENT_ATTR+_PAGE_USER,pa(initial_page_table+0xffc)
16799 +#else
16800 + movl $pa(initial_pg_fixmap)+PDE_IDENT_ATTR,pa(initial_page_table+0xffc)
16801 +#endif
16802 #endif
16803
16804 #ifdef CONFIG_PARAVIRT
16805 @@ -242,9 +314,7 @@ page_pde_offset = (__PAGE_OFFSET >> 20);
16806 cmpl $num_subarch_entries, %eax
16807 jae bad_subarch
16808
16809 - movl pa(subarch_entries)(,%eax,4), %eax
16810 - subl $__PAGE_OFFSET, %eax
16811 - jmp *%eax
16812 + jmp *pa(subarch_entries)(,%eax,4)
16813
16814 bad_subarch:
16815 WEAK(lguest_entry)
16816 @@ -256,10 +326,10 @@ WEAK(xen_entry)
16817 __INITDATA
16818
16819 subarch_entries:
16820 - .long default_entry /* normal x86/PC */
16821 - .long lguest_entry /* lguest hypervisor */
16822 - .long xen_entry /* Xen hypervisor */
16823 - .long default_entry /* Moorestown MID */
16824 + .long ta(default_entry) /* normal x86/PC */
16825 + .long ta(lguest_entry) /* lguest hypervisor */
16826 + .long ta(xen_entry) /* Xen hypervisor */
16827 + .long ta(default_entry) /* Moorestown MID */
16828 num_subarch_entries = (. - subarch_entries) / 4
16829 .previous
16830 #else
16831 @@ -310,6 +380,7 @@ default_entry:
16832 orl %edx,%eax
16833 movl %eax,%cr4
16834
16835 +#ifdef CONFIG_X86_PAE
16836 testb $X86_CR4_PAE, %al # check if PAE is enabled
16837 jz 6f
16838
16839 @@ -338,6 +409,9 @@ default_entry:
16840 /* Make changes effective */
16841 wrmsr
16842
16843 + btsl $_PAGE_BIT_NX-32,pa(__supported_pte_mask+4)
16844 +#endif
16845 +
16846 6:
16847
16848 /*
16849 @@ -436,14 +510,20 @@ is386: movl $2,%ecx # set MP
16850 1: movl $(__KERNEL_DS),%eax # reload all the segment registers
16851 movl %eax,%ss # after changing gdt.
16852
16853 - movl $(__USER_DS),%eax # DS/ES contains default USER segment
16854 +# movl $(__KERNEL_DS),%eax # DS/ES contains default KERNEL segment
16855 movl %eax,%ds
16856 movl %eax,%es
16857
16858 movl $(__KERNEL_PERCPU), %eax
16859 movl %eax,%fs # set this cpu's percpu
16860
16861 +#ifdef CONFIG_CC_STACKPROTECTOR
16862 movl $(__KERNEL_STACK_CANARY),%eax
16863 +#elif defined(CONFIG_PAX_MEMORY_UDEREF)
16864 + movl $(__USER_DS),%eax
16865 +#else
16866 + xorl %eax,%eax
16867 +#endif
16868 movl %eax,%gs
16869
16870 xorl %eax,%eax # Clear LDT
16871 @@ -520,8 +600,11 @@ setup_once:
16872 * relocation. Manually set base address in stack canary
16873 * segment descriptor.
16874 */
16875 - movl $gdt_page,%eax
16876 + movl $cpu_gdt_table,%eax
16877 movl $stack_canary,%ecx
16878 +#ifdef CONFIG_SMP
16879 + addl $__per_cpu_load,%ecx
16880 +#endif
16881 movw %cx, 8 * GDT_ENTRY_STACK_CANARY + 2(%eax)
16882 shrl $16, %ecx
16883 movb %cl, 8 * GDT_ENTRY_STACK_CANARY + 4(%eax)
16884 @@ -552,7 +635,7 @@ ENDPROC(early_idt_handlers)
16885 /* This is global to keep gas from relaxing the jumps */
16886 ENTRY(early_idt_handler)
16887 cld
16888 - cmpl $2,%ss:early_recursion_flag
16889 + cmpl $1,%ss:early_recursion_flag
16890 je hlt_loop
16891 incl %ss:early_recursion_flag
16892
16893 @@ -590,8 +673,8 @@ ENTRY(early_idt_handler)
16894 pushl (20+6*4)(%esp) /* trapno */
16895 pushl $fault_msg
16896 call printk
16897 -#endif
16898 call dump_stack
16899 +#endif
16900 hlt_loop:
16901 hlt
16902 jmp hlt_loop
16903 @@ -610,8 +693,11 @@ ENDPROC(early_idt_handler)
16904 /* This is the default interrupt "handler" :-) */
16905 ALIGN
16906 ignore_int:
16907 - cld
16908 #ifdef CONFIG_PRINTK
16909 + cmpl $2,%ss:early_recursion_flag
16910 + je hlt_loop
16911 + incl %ss:early_recursion_flag
16912 + cld
16913 pushl %eax
16914 pushl %ecx
16915 pushl %edx
16916 @@ -620,9 +706,6 @@ ignore_int:
16917 movl $(__KERNEL_DS),%eax
16918 movl %eax,%ds
16919 movl %eax,%es
16920 - cmpl $2,early_recursion_flag
16921 - je hlt_loop
16922 - incl early_recursion_flag
16923 pushl 16(%esp)
16924 pushl 24(%esp)
16925 pushl 32(%esp)
16926 @@ -656,29 +739,43 @@ ENTRY(setup_once_ref)
16927 /*
16928 * BSS section
16929 */
16930 -__PAGE_ALIGNED_BSS
16931 - .align PAGE_SIZE
16932 #ifdef CONFIG_X86_PAE
16933 +.section .initial_pg_pmd,"a",@progbits
16934 initial_pg_pmd:
16935 .fill 1024*KPMDS,4,0
16936 #else
16937 +.section .initial_page_table,"a",@progbits
16938 ENTRY(initial_page_table)
16939 .fill 1024,4,0
16940 #endif
16941 +.section .initial_pg_fixmap,"a",@progbits
16942 initial_pg_fixmap:
16943 .fill 1024,4,0
16944 +.section .empty_zero_page,"a",@progbits
16945 ENTRY(empty_zero_page)
16946 .fill 4096,1,0
16947 +.section .swapper_pg_dir,"a",@progbits
16948 ENTRY(swapper_pg_dir)
16949 +#ifdef CONFIG_X86_PAE
16950 + .fill 4,8,0
16951 +#else
16952 .fill 1024,4,0
16953 +#endif
16954 +
16955 +/*
16956 + * The IDT has to be page-aligned to simplify the Pentium
16957 + * F0 0F bug workaround.. We have a special link segment
16958 + * for this.
16959 + */
16960 +.section .idt,"a",@progbits
16961 +ENTRY(idt_table)
16962 + .fill 256,8,0
16963
16964 /*
16965 * This starts the data section.
16966 */
16967 #ifdef CONFIG_X86_PAE
16968 -__PAGE_ALIGNED_DATA
16969 - /* Page-aligned for the benefit of paravirt? */
16970 - .align PAGE_SIZE
16971 +.section .initial_page_table,"a",@progbits
16972 ENTRY(initial_page_table)
16973 .long pa(initial_pg_pmd+PGD_IDENT_ATTR),0 /* low identity map */
16974 # if KPMDS == 3
16975 @@ -697,12 +794,20 @@ ENTRY(initial_page_table)
16976 # error "Kernel PMDs should be 1, 2 or 3"
16977 # endif
16978 .align PAGE_SIZE /* needs to be page-sized too */
16979 +
16980 +#ifdef CONFIG_PAX_PER_CPU_PGD
16981 +ENTRY(cpu_pgd)
16982 + .rept NR_CPUS
16983 + .fill 4,8,0
16984 + .endr
16985 +#endif
16986 +
16987 #endif
16988
16989 .data
16990 .balign 4
16991 ENTRY(stack_start)
16992 - .long init_thread_union+THREAD_SIZE
16993 + .long init_thread_union+THREAD_SIZE-8
16994
16995 __INITRODATA
16996 int_msg:
16997 @@ -730,7 +835,7 @@ fault_msg:
16998 * segment size, and 32-bit linear address value:
16999 */
17000
17001 - .data
17002 +.section .rodata,"a",@progbits
17003 .globl boot_gdt_descr
17004 .globl idt_descr
17005
17006 @@ -739,7 +844,7 @@ fault_msg:
17007 .word 0 # 32 bit align gdt_desc.address
17008 boot_gdt_descr:
17009 .word __BOOT_DS+7
17010 - .long boot_gdt - __PAGE_OFFSET
17011 + .long pa(boot_gdt)
17012
17013 .word 0 # 32-bit align idt_desc.address
17014 idt_descr:
17015 @@ -750,7 +855,7 @@ idt_descr:
17016 .word 0 # 32 bit align gdt_desc.address
17017 ENTRY(early_gdt_descr)
17018 .word GDT_ENTRIES*8-1
17019 - .long gdt_page /* Overwritten for secondary CPUs */
17020 + .long cpu_gdt_table /* Overwritten for secondary CPUs */
17021
17022 /*
17023 * The boot_gdt must mirror the equivalent in setup.S and is
17024 @@ -759,5 +864,65 @@ ENTRY(early_gdt_descr)
17025 .align L1_CACHE_BYTES
17026 ENTRY(boot_gdt)
17027 .fill GDT_ENTRY_BOOT_CS,8,0
17028 - .quad 0x00cf9a000000ffff /* kernel 4GB code at 0x00000000 */
17029 - .quad 0x00cf92000000ffff /* kernel 4GB data at 0x00000000 */
17030 + .quad 0x00cf9b000000ffff /* kernel 4GB code at 0x00000000 */
17031 + .quad 0x00cf93000000ffff /* kernel 4GB data at 0x00000000 */
17032 +
17033 + .align PAGE_SIZE_asm
17034 +ENTRY(cpu_gdt_table)
17035 + .rept NR_CPUS
17036 + .quad 0x0000000000000000 /* NULL descriptor */
17037 + .quad 0x0000000000000000 /* 0x0b reserved */
17038 + .quad 0x0000000000000000 /* 0x13 reserved */
17039 + .quad 0x0000000000000000 /* 0x1b reserved */
17040 +
17041 +#ifdef CONFIG_PAX_KERNEXEC
17042 + .quad 0x00cf9b000000ffff /* 0x20 alternate kernel 4GB code at 0x00000000 */
17043 +#else
17044 + .quad 0x0000000000000000 /* 0x20 unused */
17045 +#endif
17046 +
17047 + .quad 0x0000000000000000 /* 0x28 unused */
17048 + .quad 0x0000000000000000 /* 0x33 TLS entry 1 */
17049 + .quad 0x0000000000000000 /* 0x3b TLS entry 2 */
17050 + .quad 0x0000000000000000 /* 0x43 TLS entry 3 */
17051 + .quad 0x0000000000000000 /* 0x4b reserved */
17052 + .quad 0x0000000000000000 /* 0x53 reserved */
17053 + .quad 0x0000000000000000 /* 0x5b reserved */
17054 +
17055 + .quad 0x00cf9b000000ffff /* 0x60 kernel 4GB code at 0x00000000 */
17056 + .quad 0x00cf93000000ffff /* 0x68 kernel 4GB data at 0x00000000 */
17057 + .quad 0x00cffb000000ffff /* 0x73 user 4GB code at 0x00000000 */
17058 + .quad 0x00cff3000000ffff /* 0x7b user 4GB data at 0x00000000 */
17059 +
17060 + .quad 0x0000000000000000 /* 0x80 TSS descriptor */
17061 + .quad 0x0000000000000000 /* 0x88 LDT descriptor */
17062 +
17063 + /*
17064 + * Segments used for calling PnP BIOS have byte granularity.
17065 + * The code segments and data segments have fixed 64k limits,
17066 + * the transfer segment sizes are set at run time.
17067 + */
17068 + .quad 0x00409b000000ffff /* 0x90 32-bit code */
17069 + .quad 0x00009b000000ffff /* 0x98 16-bit code */
17070 + .quad 0x000093000000ffff /* 0xa0 16-bit data */
17071 + .quad 0x0000930000000000 /* 0xa8 16-bit data */
17072 + .quad 0x0000930000000000 /* 0xb0 16-bit data */
17073 +
17074 + /*
17075 + * The APM segments have byte granularity and their bases
17076 + * are set at run time. All have 64k limits.
17077 + */
17078 + .quad 0x00409b000000ffff /* 0xb8 APM CS code */
17079 + .quad 0x00009b000000ffff /* 0xc0 APM CS 16 code (16 bit) */
17080 + .quad 0x004093000000ffff /* 0xc8 APM DS data */
17081 +
17082 + .quad 0x00c0930000000000 /* 0xd0 - ESPFIX SS */
17083 + .quad 0x0040930000000000 /* 0xd8 - PERCPU */
17084 + .quad 0x0040910000000017 /* 0xe0 - STACK_CANARY */
17085 + .quad 0x0000000000000000 /* 0xe8 - PCIBIOS_CS */
17086 + .quad 0x0000000000000000 /* 0xf0 - PCIBIOS_DS */
17087 + .quad 0x0000000000000000 /* 0xf8 - GDT entry 31: double-fault TSS */
17088 +
17089 + /* Be sure this is zeroed to avoid false validations in Xen */
17090 + .fill PAGE_SIZE_asm - GDT_SIZE,1,0
17091 + .endr
17092 diff --git a/arch/x86/kernel/head_64.S b/arch/x86/kernel/head_64.S
17093 index 94bf9cc..400455a 100644
17094 --- a/arch/x86/kernel/head_64.S
17095 +++ b/arch/x86/kernel/head_64.S
17096 @@ -20,6 +20,8 @@
17097 #include <asm/processor-flags.h>
17098 #include <asm/percpu.h>
17099 #include <asm/nops.h>
17100 +#include <asm/cpufeature.h>
17101 +#include <asm/alternative-asm.h>
17102
17103 #ifdef CONFIG_PARAVIRT
17104 #include <asm/asm-offsets.h>
17105 @@ -41,6 +43,12 @@ L4_PAGE_OFFSET = pgd_index(__PAGE_OFFSET)
17106 L3_PAGE_OFFSET = pud_index(__PAGE_OFFSET)
17107 L4_START_KERNEL = pgd_index(__START_KERNEL_map)
17108 L3_START_KERNEL = pud_index(__START_KERNEL_map)
17109 +L4_VMALLOC_START = pgd_index(VMALLOC_START)
17110 +L3_VMALLOC_START = pud_index(VMALLOC_START)
17111 +L4_VMALLOC_END = pgd_index(VMALLOC_END)
17112 +L3_VMALLOC_END = pud_index(VMALLOC_END)
17113 +L4_VMEMMAP_START = pgd_index(VMEMMAP_START)
17114 +L3_VMEMMAP_START = pud_index(VMEMMAP_START)
17115
17116 .text
17117 __HEAD
17118 @@ -88,35 +96,23 @@ startup_64:
17119 */
17120 addq %rbp, init_level4_pgt + 0(%rip)
17121 addq %rbp, init_level4_pgt + (L4_PAGE_OFFSET*8)(%rip)
17122 + addq %rbp, init_level4_pgt + (L4_VMALLOC_START*8)(%rip)
17123 + addq %rbp, init_level4_pgt + (L4_VMALLOC_END*8)(%rip)
17124 + addq %rbp, init_level4_pgt + (L4_VMEMMAP_START*8)(%rip)
17125 addq %rbp, init_level4_pgt + (L4_START_KERNEL*8)(%rip)
17126
17127 addq %rbp, level3_ident_pgt + 0(%rip)
17128 +#ifndef CONFIG_XEN
17129 + addq %rbp, level3_ident_pgt + 8(%rip)
17130 +#endif
17131
17132 - addq %rbp, level3_kernel_pgt + (510*8)(%rip)
17133 - addq %rbp, level3_kernel_pgt + (511*8)(%rip)
17134 + addq %rbp, level3_vmemmap_pgt + (L3_VMEMMAP_START*8)(%rip)
17135 +
17136 + addq %rbp, level3_kernel_pgt + (L3_START_KERNEL*8)(%rip)
17137 + addq %rbp, level3_kernel_pgt + (L3_START_KERNEL*8+8)(%rip)
17138
17139 addq %rbp, level2_fixmap_pgt + (506*8)(%rip)
17140 -
17141 - /* Add an Identity mapping if I am above 1G */
17142 - leaq _text(%rip), %rdi
17143 - andq $PMD_PAGE_MASK, %rdi
17144 -
17145 - movq %rdi, %rax
17146 - shrq $PUD_SHIFT, %rax
17147 - andq $(PTRS_PER_PUD - 1), %rax
17148 - jz ident_complete
17149 -
17150 - leaq (level2_spare_pgt - __START_KERNEL_map + _KERNPG_TABLE)(%rbp), %rdx
17151 - leaq level3_ident_pgt(%rip), %rbx
17152 - movq %rdx, 0(%rbx, %rax, 8)
17153 -
17154 - movq %rdi, %rax
17155 - shrq $PMD_SHIFT, %rax
17156 - andq $(PTRS_PER_PMD - 1), %rax
17157 - leaq __PAGE_KERNEL_IDENT_LARGE_EXEC(%rdi), %rdx
17158 - leaq level2_spare_pgt(%rip), %rbx
17159 - movq %rdx, 0(%rbx, %rax, 8)
17160 -ident_complete:
17161 + addq %rbp, level2_fixmap_pgt + (507*8)(%rip)
17162
17163 /*
17164 * Fixup the kernel text+data virtual addresses. Note that
17165 @@ -159,8 +155,8 @@ ENTRY(secondary_startup_64)
17166 * after the boot processor executes this code.
17167 */
17168
17169 - /* Enable PAE mode and PGE */
17170 - movl $(X86_CR4_PAE | X86_CR4_PGE), %eax
17171 + /* Enable PAE mode and PSE/PGE */
17172 + movl $(X86_CR4_PSE | X86_CR4_PAE | X86_CR4_PGE), %eax
17173 movq %rax, %cr4
17174
17175 /* Setup early boot stage 4 level pagetables. */
17176 @@ -182,9 +178,17 @@ ENTRY(secondary_startup_64)
17177 movl $MSR_EFER, %ecx
17178 rdmsr
17179 btsl $_EFER_SCE, %eax /* Enable System Call */
17180 - btl $20,%edi /* No Execute supported? */
17181 + btl $(X86_FEATURE_NX & 31),%edi /* No Execute supported? */
17182 jnc 1f
17183 btsl $_EFER_NX, %eax
17184 + leaq init_level4_pgt(%rip), %rdi
17185 +#ifndef CONFIG_EFI
17186 + btsq $_PAGE_BIT_NX, 8*L4_PAGE_OFFSET(%rdi)
17187 +#endif
17188 + btsq $_PAGE_BIT_NX, 8*L4_VMALLOC_START(%rdi)
17189 + btsq $_PAGE_BIT_NX, 8*L4_VMALLOC_END(%rdi)
17190 + btsq $_PAGE_BIT_NX, 8*L4_VMEMMAP_START(%rdi)
17191 + btsq $_PAGE_BIT_NX, __supported_pte_mask(%rip)
17192 1: wrmsr /* Make changes effective */
17193
17194 /* Setup cr0 */
17195 @@ -246,6 +250,7 @@ ENTRY(secondary_startup_64)
17196 * jump. In addition we need to ensure %cs is set so we make this
17197 * a far return.
17198 */
17199 + pax_set_fptr_mask
17200 movq initial_code(%rip),%rax
17201 pushq $0 # fake return address to stop unwinder
17202 pushq $__KERNEL_CS # set correct cs
17203 @@ -268,7 +273,7 @@ ENTRY(secondary_startup_64)
17204 bad_address:
17205 jmp bad_address
17206
17207 - .section ".init.text","ax"
17208 + __INIT
17209 .globl early_idt_handlers
17210 early_idt_handlers:
17211 # 104(%rsp) %rflags
17212 @@ -347,11 +352,15 @@ ENTRY(early_idt_handler)
17213 addq $16,%rsp # drop vector number and error code
17214 decl early_recursion_flag(%rip)
17215 INTERRUPT_RETURN
17216 + .previous
17217
17218 + __INITDATA
17219 .balign 4
17220 early_recursion_flag:
17221 .long 0
17222 + .previous
17223
17224 + .section .rodata,"a",@progbits
17225 #ifdef CONFIG_EARLY_PRINTK
17226 early_idt_msg:
17227 .asciz "PANIC: early exception %02lx rip %lx:%lx error %lx cr2 %lx\n"
17228 @@ -360,6 +369,7 @@ early_idt_ripmsg:
17229 #endif /* CONFIG_EARLY_PRINTK */
17230 .previous
17231
17232 + .section .rodata,"a",@progbits
17233 #define NEXT_PAGE(name) \
17234 .balign PAGE_SIZE; \
17235 ENTRY(name)
17236 @@ -372,7 +382,6 @@ ENTRY(name)
17237 i = i + 1 ; \
17238 .endr
17239
17240 - .data
17241 /*
17242 * This default setting generates an ident mapping at address 0x100000
17243 * and a mapping for the kernel that precisely maps virtual address
17244 @@ -383,13 +392,41 @@ NEXT_PAGE(init_level4_pgt)
17245 .quad level3_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE
17246 .org init_level4_pgt + L4_PAGE_OFFSET*8, 0
17247 .quad level3_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE
17248 + .org init_level4_pgt + L4_VMALLOC_START*8, 0
17249 + .quad level3_vmalloc_start_pgt - __START_KERNEL_map + _KERNPG_TABLE
17250 + .org init_level4_pgt + L4_VMALLOC_END*8, 0
17251 + .quad level3_vmalloc_end_pgt - __START_KERNEL_map + _KERNPG_TABLE
17252 + .org init_level4_pgt + L4_VMEMMAP_START*8, 0
17253 + .quad level3_vmemmap_pgt - __START_KERNEL_map + _KERNPG_TABLE
17254 .org init_level4_pgt + L4_START_KERNEL*8, 0
17255 /* (2^48-(2*1024*1024*1024))/(2^39) = 511 */
17256 .quad level3_kernel_pgt - __START_KERNEL_map + _PAGE_TABLE
17257
17258 +#ifdef CONFIG_PAX_PER_CPU_PGD
17259 +NEXT_PAGE(cpu_pgd)
17260 + .rept NR_CPUS
17261 + .fill 512,8,0
17262 + .endr
17263 +#endif
17264 +
17265 NEXT_PAGE(level3_ident_pgt)
17266 .quad level2_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE
17267 +#ifdef CONFIG_XEN
17268 .fill 511,8,0
17269 +#else
17270 + .quad level2_ident_pgt + PAGE_SIZE - __START_KERNEL_map + _KERNPG_TABLE
17271 + .fill 510,8,0
17272 +#endif
17273 +
17274 +NEXT_PAGE(level3_vmalloc_start_pgt)
17275 + .fill 512,8,0
17276 +
17277 +NEXT_PAGE(level3_vmalloc_end_pgt)
17278 + .fill 512,8,0
17279 +
17280 +NEXT_PAGE(level3_vmemmap_pgt)
17281 + .fill L3_VMEMMAP_START,8,0
17282 + .quad level2_vmemmap_pgt - __START_KERNEL_map + _KERNPG_TABLE
17283
17284 NEXT_PAGE(level3_kernel_pgt)
17285 .fill L3_START_KERNEL,8,0
17286 @@ -397,20 +434,23 @@ NEXT_PAGE(level3_kernel_pgt)
17287 .quad level2_kernel_pgt - __START_KERNEL_map + _KERNPG_TABLE
17288 .quad level2_fixmap_pgt - __START_KERNEL_map + _PAGE_TABLE
17289
17290 +NEXT_PAGE(level2_vmemmap_pgt)
17291 + .fill 512,8,0
17292 +
17293 NEXT_PAGE(level2_fixmap_pgt)
17294 - .fill 506,8,0
17295 - .quad level1_fixmap_pgt - __START_KERNEL_map + _PAGE_TABLE
17296 - /* 8MB reserved for vsyscalls + a 2MB hole = 4 + 1 entries */
17297 - .fill 5,8,0
17298 + .fill 507,8,0
17299 + .quad level1_vsyscall_pgt - __START_KERNEL_map + _PAGE_TABLE
17300 + /* 6MB reserved for vsyscalls + a 2MB hole = 3 + 1 entries */
17301 + .fill 4,8,0
17302
17303 -NEXT_PAGE(level1_fixmap_pgt)
17304 +NEXT_PAGE(level1_vsyscall_pgt)
17305 .fill 512,8,0
17306
17307 -NEXT_PAGE(level2_ident_pgt)
17308 - /* Since I easily can, map the first 1G.
17309 + /* Since I easily can, map the first 2G.
17310 * Don't set NX because code runs from these pages.
17311 */
17312 - PMDS(0, __PAGE_KERNEL_IDENT_LARGE_EXEC, PTRS_PER_PMD)
17313 +NEXT_PAGE(level2_ident_pgt)
17314 + PMDS(0, __PAGE_KERNEL_IDENT_LARGE_EXEC, 2*PTRS_PER_PMD)
17315
17316 NEXT_PAGE(level2_kernel_pgt)
17317 /*
17318 @@ -423,37 +463,59 @@ NEXT_PAGE(level2_kernel_pgt)
17319 * If you want to increase this then increase MODULES_VADDR
17320 * too.)
17321 */
17322 - PMDS(0, __PAGE_KERNEL_LARGE_EXEC,
17323 - KERNEL_IMAGE_SIZE/PMD_SIZE)
17324 -
17325 -NEXT_PAGE(level2_spare_pgt)
17326 - .fill 512, 8, 0
17327 + PMDS(0, __PAGE_KERNEL_LARGE_EXEC, KERNEL_IMAGE_SIZE/PMD_SIZE)
17328
17329 #undef PMDS
17330 #undef NEXT_PAGE
17331
17332 - .data
17333 + .align PAGE_SIZE
17334 +ENTRY(cpu_gdt_table)
17335 + .rept NR_CPUS
17336 + .quad 0x0000000000000000 /* NULL descriptor */
17337 + .quad 0x00cf9b000000ffff /* __KERNEL32_CS */
17338 + .quad 0x00af9b000000ffff /* __KERNEL_CS */
17339 + .quad 0x00cf93000000ffff /* __KERNEL_DS */
17340 + .quad 0x00cffb000000ffff /* __USER32_CS */
17341 + .quad 0x00cff3000000ffff /* __USER_DS, __USER32_DS */
17342 + .quad 0x00affb000000ffff /* __USER_CS */
17343 +
17344 +#ifdef CONFIG_PAX_KERNEXEC
17345 + .quad 0x00af9b000000ffff /* __KERNEXEC_KERNEL_CS */
17346 +#else
17347 + .quad 0x0 /* unused */
17348 +#endif
17349 +
17350 + .quad 0,0 /* TSS */
17351 + .quad 0,0 /* LDT */
17352 + .quad 0,0,0 /* three TLS descriptors */
17353 + .quad 0x0000f40000000000 /* node/CPU stored in limit */
17354 + /* asm/segment.h:GDT_ENTRIES must match this */
17355 +
17356 + /* zero the remaining page */
17357 + .fill PAGE_SIZE / 8 - GDT_ENTRIES,8,0
17358 + .endr
17359 +
17360 .align 16
17361 .globl early_gdt_descr
17362 early_gdt_descr:
17363 .word GDT_ENTRIES*8-1
17364 early_gdt_descr_base:
17365 - .quad INIT_PER_CPU_VAR(gdt_page)
17366 + .quad cpu_gdt_table
17367
17368 ENTRY(phys_base)
17369 /* This must match the first entry in level2_kernel_pgt */
17370 .quad 0x0000000000000000
17371
17372 #include "../../x86/xen/xen-head.S"
17373 -
17374 - .section .bss, "aw", @nobits
17375 +
17376 + .section .rodata,"a",@progbits
17377 .align L1_CACHE_BYTES
17378 ENTRY(idt_table)
17379 - .skip IDT_ENTRIES * 16
17380 + .fill 512,8,0
17381
17382 .align L1_CACHE_BYTES
17383 ENTRY(nmi_idt_table)
17384 - .skip IDT_ENTRIES * 16
17385 + .fill 512,8,0
17386
17387 __PAGE_ALIGNED_BSS
17388 .align PAGE_SIZE
17389 diff --git a/arch/x86/kernel/i386_ksyms_32.c b/arch/x86/kernel/i386_ksyms_32.c
17390 index 9c3bd4a..e1d9b35 100644
17391 --- a/arch/x86/kernel/i386_ksyms_32.c
17392 +++ b/arch/x86/kernel/i386_ksyms_32.c
17393 @@ -20,8 +20,12 @@ extern void cmpxchg8b_emu(void);
17394 EXPORT_SYMBOL(cmpxchg8b_emu);
17395 #endif
17396
17397 +EXPORT_SYMBOL_GPL(cpu_gdt_table);
17398 +
17399 /* Networking helper routines. */
17400 EXPORT_SYMBOL(csum_partial_copy_generic);
17401 +EXPORT_SYMBOL(csum_partial_copy_generic_to_user);
17402 +EXPORT_SYMBOL(csum_partial_copy_generic_from_user);
17403
17404 EXPORT_SYMBOL(__get_user_1);
17405 EXPORT_SYMBOL(__get_user_2);
17406 @@ -36,3 +40,7 @@ EXPORT_SYMBOL(strstr);
17407
17408 EXPORT_SYMBOL(csum_partial);
17409 EXPORT_SYMBOL(empty_zero_page);
17410 +
17411 +#ifdef CONFIG_PAX_KERNEXEC
17412 +EXPORT_SYMBOL(__LOAD_PHYSICAL_ADDR);
17413 +#endif
17414 diff --git a/arch/x86/kernel/i387.c b/arch/x86/kernel/i387.c
17415 index f250431..54097e7 100644
17416 --- a/arch/x86/kernel/i387.c
17417 +++ b/arch/x86/kernel/i387.c
17418 @@ -59,7 +59,7 @@ static inline bool interrupted_kernel_fpu_idle(void)
17419 static inline bool interrupted_user_mode(void)
17420 {
17421 struct pt_regs *regs = get_irq_regs();
17422 - return regs && user_mode_vm(regs);
17423 + return regs && user_mode(regs);
17424 }
17425
17426 /*
17427 diff --git a/arch/x86/kernel/i8259.c b/arch/x86/kernel/i8259.c
17428 index 36d1853..bf25736 100644
17429 --- a/arch/x86/kernel/i8259.c
17430 +++ b/arch/x86/kernel/i8259.c
17431 @@ -209,7 +209,7 @@ spurious_8259A_irq:
17432 "spurious 8259A interrupt: IRQ%d.\n", irq);
17433 spurious_irq_mask |= irqmask;
17434 }
17435 - atomic_inc(&irq_err_count);
17436 + atomic_inc_unchecked(&irq_err_count);
17437 /*
17438 * Theoretically we do not have to handle this IRQ,
17439 * but in Linux this does not cause problems and is
17440 diff --git a/arch/x86/kernel/ioport.c b/arch/x86/kernel/ioport.c
17441 index 8c96897..be66bfa 100644
17442 --- a/arch/x86/kernel/ioport.c
17443 +++ b/arch/x86/kernel/ioport.c
17444 @@ -6,6 +6,7 @@
17445 #include <linux/sched.h>
17446 #include <linux/kernel.h>
17447 #include <linux/capability.h>
17448 +#include <linux/security.h>
17449 #include <linux/errno.h>
17450 #include <linux/types.h>
17451 #include <linux/ioport.h>
17452 @@ -28,6 +29,12 @@ asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int turn_on)
17453
17454 if ((from + num <= from) || (from + num > IO_BITMAP_BITS))
17455 return -EINVAL;
17456 +#ifdef CONFIG_GRKERNSEC_IO
17457 + if (turn_on && grsec_disable_privio) {
17458 + gr_handle_ioperm();
17459 + return -EPERM;
17460 + }
17461 +#endif
17462 if (turn_on && !capable(CAP_SYS_RAWIO))
17463 return -EPERM;
17464
17465 @@ -54,7 +61,7 @@ asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int turn_on)
17466 * because the ->io_bitmap_max value must match the bitmap
17467 * contents:
17468 */
17469 - tss = &per_cpu(init_tss, get_cpu());
17470 + tss = init_tss + get_cpu();
17471
17472 if (turn_on)
17473 bitmap_clear(t->io_bitmap_ptr, from, num);
17474 @@ -102,6 +109,12 @@ long sys_iopl(unsigned int level, struct pt_regs *regs)
17475 return -EINVAL;
17476 /* Trying to gain more privileges? */
17477 if (level > old) {
17478 +#ifdef CONFIG_GRKERNSEC_IO
17479 + if (grsec_disable_privio) {
17480 + gr_handle_iopl();
17481 + return -EPERM;
17482 + }
17483 +#endif
17484 if (!capable(CAP_SYS_RAWIO))
17485 return -EPERM;
17486 }
17487 diff --git a/arch/x86/kernel/irq.c b/arch/x86/kernel/irq.c
17488 index 3dafc60..aa8e9c4 100644
17489 --- a/arch/x86/kernel/irq.c
17490 +++ b/arch/x86/kernel/irq.c
17491 @@ -18,7 +18,7 @@
17492 #include <asm/mce.h>
17493 #include <asm/hw_irq.h>
17494
17495 -atomic_t irq_err_count;
17496 +atomic_unchecked_t irq_err_count;
17497
17498 /* Function pointer for generic interrupt vector handling */
17499 void (*x86_platform_ipi_callback)(void) = NULL;
17500 @@ -121,9 +121,9 @@ int arch_show_interrupts(struct seq_file *p, int prec)
17501 seq_printf(p, "%10u ", per_cpu(mce_poll_count, j));
17502 seq_printf(p, " Machine check polls\n");
17503 #endif
17504 - seq_printf(p, "%*s: %10u\n", prec, "ERR", atomic_read(&irq_err_count));
17505 + seq_printf(p, "%*s: %10u\n", prec, "ERR", atomic_read_unchecked(&irq_err_count));
17506 #if defined(CONFIG_X86_IO_APIC)
17507 - seq_printf(p, "%*s: %10u\n", prec, "MIS", atomic_read(&irq_mis_count));
17508 + seq_printf(p, "%*s: %10u\n", prec, "MIS", atomic_read_unchecked(&irq_mis_count));
17509 #endif
17510 return 0;
17511 }
17512 @@ -164,10 +164,10 @@ u64 arch_irq_stat_cpu(unsigned int cpu)
17513
17514 u64 arch_irq_stat(void)
17515 {
17516 - u64 sum = atomic_read(&irq_err_count);
17517 + u64 sum = atomic_read_unchecked(&irq_err_count);
17518
17519 #ifdef CONFIG_X86_IO_APIC
17520 - sum += atomic_read(&irq_mis_count);
17521 + sum += atomic_read_unchecked(&irq_mis_count);
17522 #endif
17523 return sum;
17524 }
17525 diff --git a/arch/x86/kernel/irq_32.c b/arch/x86/kernel/irq_32.c
17526 index 344faf8..355f60d 100644
17527 --- a/arch/x86/kernel/irq_32.c
17528 +++ b/arch/x86/kernel/irq_32.c
17529 @@ -39,7 +39,7 @@ static int check_stack_overflow(void)
17530 __asm__ __volatile__("andl %%esp,%0" :
17531 "=r" (sp) : "0" (THREAD_SIZE - 1));
17532
17533 - return sp < (sizeof(struct thread_info) + STACK_WARN);
17534 + return sp < STACK_WARN;
17535 }
17536
17537 static void print_stack_overflow(void)
17538 @@ -59,8 +59,8 @@ static inline void print_stack_overflow(void) { }
17539 * per-CPU IRQ handling contexts (thread information and stack)
17540 */
17541 union irq_ctx {
17542 - struct thread_info tinfo;
17543 - u32 stack[THREAD_SIZE/sizeof(u32)];
17544 + unsigned long previous_esp;
17545 + u32 stack[THREAD_SIZE/sizeof(u32)];
17546 } __attribute__((aligned(THREAD_SIZE)));
17547
17548 static DEFINE_PER_CPU(union irq_ctx *, hardirq_ctx);
17549 @@ -80,10 +80,9 @@ static void call_on_stack(void *func, void *stack)
17550 static inline int
17551 execute_on_irq_stack(int overflow, struct irq_desc *desc, int irq)
17552 {
17553 - union irq_ctx *curctx, *irqctx;
17554 + union irq_ctx *irqctx;
17555 u32 *isp, arg1, arg2;
17556
17557 - curctx = (union irq_ctx *) current_thread_info();
17558 irqctx = __this_cpu_read(hardirq_ctx);
17559
17560 /*
17561 @@ -92,16 +91,16 @@ execute_on_irq_stack(int overflow, struct irq_desc *desc, int irq)
17562 * handler) we can't do that and just have to keep using the
17563 * current stack (which is the irq stack already after all)
17564 */
17565 - if (unlikely(curctx == irqctx))
17566 + if (unlikely((void *)current_stack_pointer - (void *)irqctx < THREAD_SIZE))
17567 return 0;
17568
17569 /* build the stack frame on the IRQ stack */
17570 - isp = (u32 *) ((char *)irqctx + sizeof(*irqctx));
17571 - irqctx->tinfo.task = curctx->tinfo.task;
17572 - irqctx->tinfo.previous_esp = current_stack_pointer;
17573 + isp = (u32 *) ((char *)irqctx + sizeof(*irqctx) - 8);
17574 + irqctx->previous_esp = current_stack_pointer;
17575
17576 - /* Copy the preempt_count so that the [soft]irq checks work. */
17577 - irqctx->tinfo.preempt_count = curctx->tinfo.preempt_count;
17578 +#ifdef CONFIG_PAX_MEMORY_UDEREF
17579 + __set_fs(MAKE_MM_SEG(0));
17580 +#endif
17581
17582 if (unlikely(overflow))
17583 call_on_stack(print_stack_overflow, isp);
17584 @@ -113,6 +112,11 @@ execute_on_irq_stack(int overflow, struct irq_desc *desc, int irq)
17585 : "0" (irq), "1" (desc), "2" (isp),
17586 "D" (desc->handle_irq)
17587 : "memory", "cc", "ecx");
17588 +
17589 +#ifdef CONFIG_PAX_MEMORY_UDEREF
17590 + __set_fs(current_thread_info()->addr_limit);
17591 +#endif
17592 +
17593 return 1;
17594 }
17595
17596 @@ -121,29 +125,14 @@ execute_on_irq_stack(int overflow, struct irq_desc *desc, int irq)
17597 */
17598 void __cpuinit irq_ctx_init(int cpu)
17599 {
17600 - union irq_ctx *irqctx;
17601 -
17602 if (per_cpu(hardirq_ctx, cpu))
17603 return;
17604
17605 - irqctx = page_address(alloc_pages_node(cpu_to_node(cpu),
17606 - THREADINFO_GFP,
17607 - THREAD_SIZE_ORDER));
17608 - memset(&irqctx->tinfo, 0, sizeof(struct thread_info));
17609 - irqctx->tinfo.cpu = cpu;
17610 - irqctx->tinfo.preempt_count = HARDIRQ_OFFSET;
17611 - irqctx->tinfo.addr_limit = MAKE_MM_SEG(0);
17612 -
17613 - per_cpu(hardirq_ctx, cpu) = irqctx;
17614 -
17615 - irqctx = page_address(alloc_pages_node(cpu_to_node(cpu),
17616 - THREADINFO_GFP,
17617 - THREAD_SIZE_ORDER));
17618 - memset(&irqctx->tinfo, 0, sizeof(struct thread_info));
17619 - irqctx->tinfo.cpu = cpu;
17620 - irqctx->tinfo.addr_limit = MAKE_MM_SEG(0);
17621 -
17622 - per_cpu(softirq_ctx, cpu) = irqctx;
17623 + per_cpu(hardirq_ctx, cpu) = page_address(alloc_pages_node(cpu_to_node(cpu), THREADINFO_GFP, THREAD_SIZE_ORDER));
17624 + per_cpu(softirq_ctx, cpu) = page_address(alloc_pages_node(cpu_to_node(cpu), THREADINFO_GFP, THREAD_SIZE_ORDER));
17625 +
17626 + printk(KERN_DEBUG "CPU %u irqstacks, hard=%p soft=%p\n",
17627 + cpu, per_cpu(hardirq_ctx, cpu), per_cpu(softirq_ctx, cpu));
17628
17629 printk(KERN_DEBUG "CPU %u irqstacks, hard=%p soft=%p\n",
17630 cpu, per_cpu(hardirq_ctx, cpu), per_cpu(softirq_ctx, cpu));
17631 @@ -152,7 +141,6 @@ void __cpuinit irq_ctx_init(int cpu)
17632 asmlinkage void do_softirq(void)
17633 {
17634 unsigned long flags;
17635 - struct thread_info *curctx;
17636 union irq_ctx *irqctx;
17637 u32 *isp;
17638
17639 @@ -162,15 +150,22 @@ asmlinkage void do_softirq(void)
17640 local_irq_save(flags);
17641
17642 if (local_softirq_pending()) {
17643 - curctx = current_thread_info();
17644 irqctx = __this_cpu_read(softirq_ctx);
17645 - irqctx->tinfo.task = curctx->task;
17646 - irqctx->tinfo.previous_esp = current_stack_pointer;
17647 + irqctx->previous_esp = current_stack_pointer;
17648
17649 /* build the stack frame on the softirq stack */
17650 - isp = (u32 *) ((char *)irqctx + sizeof(*irqctx));
17651 + isp = (u32 *) ((char *)irqctx + sizeof(*irqctx) - 8);
17652 +
17653 +#ifdef CONFIG_PAX_MEMORY_UDEREF
17654 + __set_fs(MAKE_MM_SEG(0));
17655 +#endif
17656
17657 call_on_stack(__do_softirq, isp);
17658 +
17659 +#ifdef CONFIG_PAX_MEMORY_UDEREF
17660 + __set_fs(current_thread_info()->addr_limit);
17661 +#endif
17662 +
17663 /*
17664 * Shouldn't happen, we returned above if in_interrupt():
17665 */
17666 @@ -191,7 +186,7 @@ bool handle_irq(unsigned irq, struct pt_regs *regs)
17667 if (unlikely(!desc))
17668 return false;
17669
17670 - if (user_mode_vm(regs) || !execute_on_irq_stack(overflow, desc, irq)) {
17671 + if (user_mode(regs) || !execute_on_irq_stack(overflow, desc, irq)) {
17672 if (unlikely(overflow))
17673 print_stack_overflow();
17674 desc->handle_irq(irq, desc);
17675 diff --git a/arch/x86/kernel/irq_64.c b/arch/x86/kernel/irq_64.c
17676 index d04d3ec..ea4b374 100644
17677 --- a/arch/x86/kernel/irq_64.c
17678 +++ b/arch/x86/kernel/irq_64.c
17679 @@ -44,7 +44,7 @@ static inline void stack_overflow_check(struct pt_regs *regs)
17680 u64 estack_top, estack_bottom;
17681 u64 curbase = (u64)task_stack_page(current);
17682
17683 - if (user_mode_vm(regs))
17684 + if (user_mode(regs))
17685 return;
17686
17687 if (regs->sp >= curbase + sizeof(struct thread_info) +
17688 diff --git a/arch/x86/kernel/kdebugfs.c b/arch/x86/kernel/kdebugfs.c
17689 index 1d5d31e..72731d4 100644
17690 --- a/arch/x86/kernel/kdebugfs.c
17691 +++ b/arch/x86/kernel/kdebugfs.c
17692 @@ -27,7 +27,7 @@ struct setup_data_node {
17693 u32 len;
17694 };
17695
17696 -static ssize_t setup_data_read(struct file *file, char __user *user_buf,
17697 +static ssize_t __size_overflow(3) setup_data_read(struct file *file, char __user *user_buf,
17698 size_t count, loff_t *ppos)
17699 {
17700 struct setup_data_node *node = file->private_data;
17701 diff --git a/arch/x86/kernel/kgdb.c b/arch/x86/kernel/kgdb.c
17702 index 3f61904..873cea9 100644
17703 --- a/arch/x86/kernel/kgdb.c
17704 +++ b/arch/x86/kernel/kgdb.c
17705 @@ -127,11 +127,11 @@ char *dbg_get_reg(int regno, void *mem, struct pt_regs *regs)
17706 #ifdef CONFIG_X86_32
17707 switch (regno) {
17708 case GDB_SS:
17709 - if (!user_mode_vm(regs))
17710 + if (!user_mode(regs))
17711 *(unsigned long *)mem = __KERNEL_DS;
17712 break;
17713 case GDB_SP:
17714 - if (!user_mode_vm(regs))
17715 + if (!user_mode(regs))
17716 *(unsigned long *)mem = kernel_stack_pointer(regs);
17717 break;
17718 case GDB_GS:
17719 @@ -476,12 +476,12 @@ int kgdb_arch_handle_exception(int e_vector, int signo, int err_code,
17720 case 'k':
17721 /* clear the trace bit */
17722 linux_regs->flags &= ~X86_EFLAGS_TF;
17723 - atomic_set(&kgdb_cpu_doing_single_step, -1);
17724 + atomic_set_unchecked(&kgdb_cpu_doing_single_step, -1);
17725
17726 /* set the trace bit if we're stepping */
17727 if (remcomInBuffer[0] == 's') {
17728 linux_regs->flags |= X86_EFLAGS_TF;
17729 - atomic_set(&kgdb_cpu_doing_single_step,
17730 + atomic_set_unchecked(&kgdb_cpu_doing_single_step,
17731 raw_smp_processor_id());
17732 }
17733
17734 @@ -546,7 +546,7 @@ static int __kgdb_notify(struct die_args *args, unsigned long cmd)
17735
17736 switch (cmd) {
17737 case DIE_DEBUG:
17738 - if (atomic_read(&kgdb_cpu_doing_single_step) != -1) {
17739 + if (atomic_read_unchecked(&kgdb_cpu_doing_single_step) != -1) {
17740 if (user_mode(regs))
17741 return single_step_cont(regs, args);
17742 break;
17743 diff --git a/arch/x86/kernel/kprobes-opt.c b/arch/x86/kernel/kprobes-opt.c
17744 index c5e410e..da6aaf9 100644
17745 --- a/arch/x86/kernel/kprobes-opt.c
17746 +++ b/arch/x86/kernel/kprobes-opt.c
17747 @@ -338,7 +338,7 @@ int __kprobes arch_prepare_optimized_kprobe(struct optimized_kprobe *op)
17748 * Verify if the address gap is in 2GB range, because this uses
17749 * a relative jump.
17750 */
17751 - rel = (long)op->optinsn.insn - (long)op->kp.addr + RELATIVEJUMP_SIZE;
17752 + rel = (long)op->optinsn.insn - ktla_ktva((long)op->kp.addr) + RELATIVEJUMP_SIZE;
17753 if (abs(rel) > 0x7fffffff)
17754 return -ERANGE;
17755
17756 @@ -359,11 +359,11 @@ int __kprobes arch_prepare_optimized_kprobe(struct optimized_kprobe *op)
17757 synthesize_set_arg1(buf + TMPL_MOVE_IDX, (unsigned long)op);
17758
17759 /* Set probe function call */
17760 - synthesize_relcall(buf + TMPL_CALL_IDX, optimized_callback);
17761 + synthesize_relcall(buf + TMPL_CALL_IDX, ktla_ktva(optimized_callback));
17762
17763 /* Set returning jmp instruction at the tail of out-of-line buffer */
17764 synthesize_reljump(buf + TMPL_END_IDX + op->optinsn.size,
17765 - (u8 *)op->kp.addr + op->optinsn.size);
17766 + (u8 *)ktla_ktva(op->kp.addr) + op->optinsn.size);
17767
17768 flush_icache_range((unsigned long) buf,
17769 (unsigned long) buf + TMPL_END_IDX +
17770 @@ -385,7 +385,7 @@ static void __kprobes setup_optimize_kprobe(struct text_poke_param *tprm,
17771 ((long)op->kp.addr + RELATIVEJUMP_SIZE));
17772
17773 /* Backup instructions which will be replaced by jump address */
17774 - memcpy(op->optinsn.copied_insn, op->kp.addr + INT3_SIZE,
17775 + memcpy(op->optinsn.copied_insn, ktla_ktva(op->kp.addr) + INT3_SIZE,
17776 RELATIVE_ADDR_SIZE);
17777
17778 insn_buf[0] = RELATIVEJUMP_OPCODE;
17779 diff --git a/arch/x86/kernel/kprobes.c b/arch/x86/kernel/kprobes.c
17780 index e2f751e..dffa2a0 100644
17781 --- a/arch/x86/kernel/kprobes.c
17782 +++ b/arch/x86/kernel/kprobes.c
17783 @@ -120,8 +120,11 @@ static void __kprobes __synthesize_relative_insn(void *from, void *to, u8 op)
17784 } __attribute__((packed)) *insn;
17785
17786 insn = (struct __arch_relative_insn *)from;
17787 +
17788 + pax_open_kernel();
17789 insn->raddr = (s32)((long)(to) - ((long)(from) + 5));
17790 insn->op = op;
17791 + pax_close_kernel();
17792 }
17793
17794 /* Insert a jump instruction at address 'from', which jumps to address 'to'.*/
17795 @@ -164,7 +167,7 @@ int __kprobes can_boost(kprobe_opcode_t *opcodes)
17796 kprobe_opcode_t opcode;
17797 kprobe_opcode_t *orig_opcodes = opcodes;
17798
17799 - if (search_exception_tables((unsigned long)opcodes))
17800 + if (search_exception_tables(ktva_ktla((unsigned long)opcodes)))
17801 return 0; /* Page fault may occur on this address. */
17802
17803 retry:
17804 @@ -332,7 +335,9 @@ int __kprobes __copy_instruction(u8 *dest, u8 *src)
17805 /* Another subsystem puts a breakpoint, failed to recover */
17806 if (insn.opcode.bytes[0] == BREAKPOINT_INSTRUCTION)
17807 return 0;
17808 + pax_open_kernel();
17809 memcpy(dest, insn.kaddr, insn.length);
17810 + pax_close_kernel();
17811
17812 #ifdef CONFIG_X86_64
17813 if (insn_rip_relative(&insn)) {
17814 @@ -355,7 +360,9 @@ int __kprobes __copy_instruction(u8 *dest, u8 *src)
17815 newdisp = (u8 *) src + (s64) insn.displacement.value - (u8 *) dest;
17816 BUG_ON((s64) (s32) newdisp != newdisp); /* Sanity check. */
17817 disp = (u8 *) dest + insn_offset_displacement(&insn);
17818 + pax_open_kernel();
17819 *(s32 *) disp = (s32) newdisp;
17820 + pax_close_kernel();
17821 }
17822 #endif
17823 return insn.length;
17824 @@ -485,7 +492,7 @@ setup_singlestep(struct kprobe *p, struct pt_regs *regs, struct kprobe_ctlblk *k
17825 * nor set current_kprobe, because it doesn't use single
17826 * stepping.
17827 */
17828 - regs->ip = (unsigned long)p->ainsn.insn;
17829 + regs->ip = ktva_ktla((unsigned long)p->ainsn.insn);
17830 preempt_enable_no_resched();
17831 return;
17832 }
17833 @@ -504,7 +511,7 @@ setup_singlestep(struct kprobe *p, struct pt_regs *regs, struct kprobe_ctlblk *k
17834 if (p->opcode == BREAKPOINT_INSTRUCTION)
17835 regs->ip = (unsigned long)p->addr;
17836 else
17837 - regs->ip = (unsigned long)p->ainsn.insn;
17838 + regs->ip = ktva_ktla((unsigned long)p->ainsn.insn);
17839 }
17840
17841 /*
17842 @@ -583,7 +590,7 @@ static int __kprobes kprobe_handler(struct pt_regs *regs)
17843 setup_singlestep(p, regs, kcb, 0);
17844 return 1;
17845 }
17846 - } else if (*addr != BREAKPOINT_INSTRUCTION) {
17847 + } else if (*(kprobe_opcode_t *)ktla_ktva((unsigned long)addr) != BREAKPOINT_INSTRUCTION) {
17848 /*
17849 * The breakpoint instruction was removed right
17850 * after we hit it. Another cpu has removed
17851 @@ -628,6 +635,9 @@ static void __used __kprobes kretprobe_trampoline_holder(void)
17852 " movq %rax, 152(%rsp)\n"
17853 RESTORE_REGS_STRING
17854 " popfq\n"
17855 +#ifdef KERNEXEC_PLUGIN
17856 + " btsq $63,(%rsp)\n"
17857 +#endif
17858 #else
17859 " pushf\n"
17860 SAVE_REGS_STRING
17861 @@ -765,7 +775,7 @@ static void __kprobes
17862 resume_execution(struct kprobe *p, struct pt_regs *regs, struct kprobe_ctlblk *kcb)
17863 {
17864 unsigned long *tos = stack_addr(regs);
17865 - unsigned long copy_ip = (unsigned long)p->ainsn.insn;
17866 + unsigned long copy_ip = ktva_ktla((unsigned long)p->ainsn.insn);
17867 unsigned long orig_ip = (unsigned long)p->addr;
17868 kprobe_opcode_t *insn = p->ainsn.insn;
17869
17870 @@ -947,7 +957,7 @@ kprobe_exceptions_notify(struct notifier_block *self, unsigned long val, void *d
17871 struct die_args *args = data;
17872 int ret = NOTIFY_DONE;
17873
17874 - if (args->regs && user_mode_vm(args->regs))
17875 + if (args->regs && user_mode(args->regs))
17876 return ret;
17877
17878 switch (val) {
17879 diff --git a/arch/x86/kernel/ldt.c b/arch/x86/kernel/ldt.c
17880 index ebc9873..1b9724b 100644
17881 --- a/arch/x86/kernel/ldt.c
17882 +++ b/arch/x86/kernel/ldt.c
17883 @@ -66,13 +66,13 @@ static int alloc_ldt(mm_context_t *pc, int mincount, int reload)
17884 if (reload) {
17885 #ifdef CONFIG_SMP
17886 preempt_disable();
17887 - load_LDT(pc);
17888 + load_LDT_nolock(pc);
17889 if (!cpumask_equal(mm_cpumask(current->mm),
17890 cpumask_of(smp_processor_id())))
17891 smp_call_function(flush_ldt, current->mm, 1);
17892 preempt_enable();
17893 #else
17894 - load_LDT(pc);
17895 + load_LDT_nolock(pc);
17896 #endif
17897 }
17898 if (oldsize) {
17899 @@ -94,7 +94,7 @@ static inline int copy_ldt(mm_context_t *new, mm_context_t *old)
17900 return err;
17901
17902 for (i = 0; i < old->size; i++)
17903 - write_ldt_entry(new->ldt, i, old->ldt + i * LDT_ENTRY_SIZE);
17904 + write_ldt_entry(new->ldt, i, old->ldt + i);
17905 return 0;
17906 }
17907
17908 @@ -115,6 +115,24 @@ int init_new_context(struct task_struct *tsk, struct mm_struct *mm)
17909 retval = copy_ldt(&mm->context, &old_mm->context);
17910 mutex_unlock(&old_mm->context.lock);
17911 }
17912 +
17913 + if (tsk == current) {
17914 + mm->context.vdso = 0;
17915 +
17916 +#ifdef CONFIG_X86_32
17917 +#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
17918 + mm->context.user_cs_base = 0UL;
17919 + mm->context.user_cs_limit = ~0UL;
17920 +
17921 +#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_SMP)
17922 + cpus_clear(mm->context.cpu_user_cs_mask);
17923 +#endif
17924 +
17925 +#endif
17926 +#endif
17927 +
17928 + }
17929 +
17930 return retval;
17931 }
17932
17933 @@ -229,6 +247,13 @@ static int write_ldt(void __user *ptr, unsigned long bytecount, int oldmode)
17934 }
17935 }
17936
17937 +#ifdef CONFIG_PAX_SEGMEXEC
17938 + if ((mm->pax_flags & MF_PAX_SEGMEXEC) && (ldt_info.contents & MODIFY_LDT_CONTENTS_CODE)) {
17939 + error = -EINVAL;
17940 + goto out_unlock;
17941 + }
17942 +#endif
17943 +
17944 fill_ldt(&ldt, &ldt_info);
17945 if (oldmode)
17946 ldt.avl = 0;
17947 diff --git a/arch/x86/kernel/machine_kexec_32.c b/arch/x86/kernel/machine_kexec_32.c
17948 index 5b19e4d..6476a76 100644
17949 --- a/arch/x86/kernel/machine_kexec_32.c
17950 +++ b/arch/x86/kernel/machine_kexec_32.c
17951 @@ -26,7 +26,7 @@
17952 #include <asm/cacheflush.h>
17953 #include <asm/debugreg.h>
17954
17955 -static void set_idt(void *newidt, __u16 limit)
17956 +static void set_idt(struct desc_struct *newidt, __u16 limit)
17957 {
17958 struct desc_ptr curidt;
17959
17960 @@ -38,7 +38,7 @@ static void set_idt(void *newidt, __u16 limit)
17961 }
17962
17963
17964 -static void set_gdt(void *newgdt, __u16 limit)
17965 +static void set_gdt(struct desc_struct *newgdt, __u16 limit)
17966 {
17967 struct desc_ptr curgdt;
17968
17969 @@ -216,7 +216,7 @@ void machine_kexec(struct kimage *image)
17970 }
17971
17972 control_page = page_address(image->control_code_page);
17973 - memcpy(control_page, relocate_kernel, KEXEC_CONTROL_CODE_MAX_SIZE);
17974 + memcpy(control_page, (void *)ktla_ktva((unsigned long)relocate_kernel), KEXEC_CONTROL_CODE_MAX_SIZE);
17975
17976 relocate_kernel_ptr = control_page;
17977 page_list[PA_CONTROL_PAGE] = __pa(control_page);
17978 diff --git a/arch/x86/kernel/microcode_intel.c b/arch/x86/kernel/microcode_intel.c
17979 index 0327e2b..e43737b 100644
17980 --- a/arch/x86/kernel/microcode_intel.c
17981 +++ b/arch/x86/kernel/microcode_intel.c
17982 @@ -430,13 +430,13 @@ static enum ucode_state request_microcode_fw(int cpu, struct device *device)
17983
17984 static int get_ucode_user(void *to, const void *from, size_t n)
17985 {
17986 - return copy_from_user(to, from, n);
17987 + return copy_from_user(to, (const void __force_user *)from, n);
17988 }
17989
17990 static enum ucode_state
17991 request_microcode_user(int cpu, const void __user *buf, size_t size)
17992 {
17993 - return generic_load_microcode(cpu, (void *)buf, size, &get_ucode_user);
17994 + return generic_load_microcode(cpu, (__force_kernel void *)buf, size, &get_ucode_user);
17995 }
17996
17997 static void microcode_fini_cpu(int cpu)
17998 diff --git a/arch/x86/kernel/module.c b/arch/x86/kernel/module.c
17999 index f21fd94..61565cd 100644
18000 --- a/arch/x86/kernel/module.c
18001 +++ b/arch/x86/kernel/module.c
18002 @@ -35,15 +35,60 @@
18003 #define DEBUGP(fmt...)
18004 #endif
18005
18006 -void *module_alloc(unsigned long size)
18007 +static inline void *__module_alloc(unsigned long size, pgprot_t prot)
18008 {
18009 - if (PAGE_ALIGN(size) > MODULES_LEN)
18010 + if (size == 0 || PAGE_ALIGN(size) > MODULES_LEN)
18011 return NULL;
18012 return __vmalloc_node_range(size, 1, MODULES_VADDR, MODULES_END,
18013 - GFP_KERNEL | __GFP_HIGHMEM, PAGE_KERNEL_EXEC,
18014 + GFP_KERNEL | __GFP_HIGHMEM | __GFP_ZERO, prot,
18015 -1, __builtin_return_address(0));
18016 }
18017
18018 +void *module_alloc(unsigned long size)
18019 +{
18020 +
18021 +#ifdef CONFIG_PAX_KERNEXEC
18022 + return __module_alloc(size, PAGE_KERNEL);
18023 +#else
18024 + return __module_alloc(size, PAGE_KERNEL_EXEC);
18025 +#endif
18026 +
18027 +}
18028 +
18029 +#ifdef CONFIG_PAX_KERNEXEC
18030 +#ifdef CONFIG_X86_32
18031 +void *module_alloc_exec(unsigned long size)
18032 +{
18033 + struct vm_struct *area;
18034 +
18035 + if (size == 0)
18036 + return NULL;
18037 +
18038 + area = __get_vm_area(size, VM_ALLOC, (unsigned long)&MODULES_EXEC_VADDR, (unsigned long)&MODULES_EXEC_END);
18039 + return area ? area->addr : NULL;
18040 +}
18041 +EXPORT_SYMBOL(module_alloc_exec);
18042 +
18043 +void module_free_exec(struct module *mod, void *module_region)
18044 +{
18045 + vunmap(module_region);
18046 +}
18047 +EXPORT_SYMBOL(module_free_exec);
18048 +#else
18049 +void module_free_exec(struct module *mod, void *module_region)
18050 +{
18051 + module_free(mod, module_region);
18052 +}
18053 +EXPORT_SYMBOL(module_free_exec);
18054 +
18055 +void *module_alloc_exec(unsigned long size)
18056 +{
18057 + return __module_alloc(size, PAGE_KERNEL_RX);
18058 +}
18059 +EXPORT_SYMBOL(module_alloc_exec);
18060 +#endif
18061 +#endif
18062 +
18063 #ifdef CONFIG_X86_32
18064 int apply_relocate(Elf32_Shdr *sechdrs,
18065 const char *strtab,
18066 @@ -54,14 +99,16 @@ int apply_relocate(Elf32_Shdr *sechdrs,
18067 unsigned int i;
18068 Elf32_Rel *rel = (void *)sechdrs[relsec].sh_addr;
18069 Elf32_Sym *sym;
18070 - uint32_t *location;
18071 + uint32_t *plocation, location;
18072
18073 DEBUGP("Applying relocate section %u to %u\n", relsec,
18074 sechdrs[relsec].sh_info);
18075 for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) {
18076 /* This is where to make the change */
18077 - location = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr
18078 - + rel[i].r_offset;
18079 + plocation = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr + rel[i].r_offset;
18080 + location = (uint32_t)plocation;
18081 + if (sechdrs[sechdrs[relsec].sh_info].sh_flags & SHF_EXECINSTR)
18082 + plocation = ktla_ktva((void *)plocation);
18083 /* This is the symbol it is referring to. Note that all
18084 undefined symbols have been resolved. */
18085 sym = (Elf32_Sym *)sechdrs[symindex].sh_addr
18086 @@ -70,11 +117,15 @@ int apply_relocate(Elf32_Shdr *sechdrs,
18087 switch (ELF32_R_TYPE(rel[i].r_info)) {
18088 case R_386_32:
18089 /* We add the value into the location given */
18090 - *location += sym->st_value;
18091 + pax_open_kernel();
18092 + *plocation += sym->st_value;
18093 + pax_close_kernel();
18094 break;
18095 case R_386_PC32:
18096 /* Add the value, subtract its postition */
18097 - *location += sym->st_value - (uint32_t)location;
18098 + pax_open_kernel();
18099 + *plocation += sym->st_value - location;
18100 + pax_close_kernel();
18101 break;
18102 default:
18103 printk(KERN_ERR "module %s: Unknown relocation: %u\n",
18104 @@ -119,21 +170,30 @@ int apply_relocate_add(Elf64_Shdr *sechdrs,
18105 case R_X86_64_NONE:
18106 break;
18107 case R_X86_64_64:
18108 + pax_open_kernel();
18109 *(u64 *)loc = val;
18110 + pax_close_kernel();
18111 break;
18112 case R_X86_64_32:
18113 + pax_open_kernel();
18114 *(u32 *)loc = val;
18115 + pax_close_kernel();
18116 if (val != *(u32 *)loc)
18117 goto overflow;
18118 break;
18119 case R_X86_64_32S:
18120 + pax_open_kernel();
18121 *(s32 *)loc = val;
18122 + pax_close_kernel();
18123 if ((s64)val != *(s32 *)loc)
18124 goto overflow;
18125 break;
18126 case R_X86_64_PC32:
18127 val -= (u64)loc;
18128 + pax_open_kernel();
18129 *(u32 *)loc = val;
18130 + pax_close_kernel();
18131 +
18132 #if 0
18133 if ((s64)val != *(s32 *)loc)
18134 goto overflow;
18135 diff --git a/arch/x86/kernel/nmi.c b/arch/x86/kernel/nmi.c
18136 index a0b2f84..875ab81 100644
18137 --- a/arch/x86/kernel/nmi.c
18138 +++ b/arch/x86/kernel/nmi.c
18139 @@ -460,6 +460,17 @@ static inline void nmi_nesting_postprocess(void)
18140 dotraplinkage notrace __kprobes void
18141 do_nmi(struct pt_regs *regs, long error_code)
18142 {
18143 +
18144 +#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
18145 + if (!user_mode(regs)) {
18146 + unsigned long cs = regs->cs & 0xFFFF;
18147 + unsigned long ip = ktva_ktla(regs->ip);
18148 +
18149 + if ((cs == __KERNEL_CS || cs == __KERNEXEC_KERNEL_CS) && ip <= (unsigned long)_etext)
18150 + regs->ip = ip;
18151 + }
18152 +#endif
18153 +
18154 nmi_nesting_preprocess(regs);
18155
18156 nmi_enter();
18157 diff --git a/arch/x86/kernel/paravirt-spinlocks.c b/arch/x86/kernel/paravirt-spinlocks.c
18158 index 676b8c7..870ba04 100644
18159 --- a/arch/x86/kernel/paravirt-spinlocks.c
18160 +++ b/arch/x86/kernel/paravirt-spinlocks.c
18161 @@ -13,7 +13,7 @@ default_spin_lock_flags(arch_spinlock_t *lock, unsigned long flags)
18162 arch_spin_lock(lock);
18163 }
18164
18165 -struct pv_lock_ops pv_lock_ops = {
18166 +struct pv_lock_ops pv_lock_ops __read_only = {
18167 #ifdef CONFIG_SMP
18168 .spin_is_locked = __ticket_spin_is_locked,
18169 .spin_is_contended = __ticket_spin_is_contended,
18170 diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c
18171 index 9ce8859..b49bf51 100644
18172 --- a/arch/x86/kernel/paravirt.c
18173 +++ b/arch/x86/kernel/paravirt.c
18174 @@ -55,6 +55,9 @@ u64 _paravirt_ident_64(u64 x)
18175 {
18176 return x;
18177 }
18178 +#if defined(CONFIG_X86_32) && defined(CONFIG_X86_PAE)
18179 +PV_CALLEE_SAVE_REGS_THUNK(_paravirt_ident_64);
18180 +#endif
18181
18182 void __init default_banner(void)
18183 {
18184 @@ -147,15 +150,19 @@ unsigned paravirt_patch_default(u8 type, u16 clobbers, void *insnbuf,
18185 if (opfunc == NULL)
18186 /* If there's no function, patch it with a ud2a (BUG) */
18187 ret = paravirt_patch_insns(insnbuf, len, ud2a, ud2a+sizeof(ud2a));
18188 - else if (opfunc == _paravirt_nop)
18189 + else if (opfunc == (void *)_paravirt_nop)
18190 /* If the operation is a nop, then nop the callsite */
18191 ret = paravirt_patch_nop();
18192
18193 /* identity functions just return their single argument */
18194 - else if (opfunc == _paravirt_ident_32)
18195 + else if (opfunc == (void *)_paravirt_ident_32)
18196 ret = paravirt_patch_ident_32(insnbuf, len);
18197 - else if (opfunc == _paravirt_ident_64)
18198 + else if (opfunc == (void *)_paravirt_ident_64)
18199 ret = paravirt_patch_ident_64(insnbuf, len);
18200 +#if defined(CONFIG_X86_32) && defined(CONFIG_X86_PAE)
18201 + else if (opfunc == (void *)__raw_callee_save__paravirt_ident_64)
18202 + ret = paravirt_patch_ident_64(insnbuf, len);
18203 +#endif
18204
18205 else if (type == PARAVIRT_PATCH(pv_cpu_ops.iret) ||
18206 type == PARAVIRT_PATCH(pv_cpu_ops.irq_enable_sysexit) ||
18207 @@ -180,7 +187,7 @@ unsigned paravirt_patch_insns(void *insnbuf, unsigned len,
18208 if (insn_len > len || start == NULL)
18209 insn_len = len;
18210 else
18211 - memcpy(insnbuf, start, insn_len);
18212 + memcpy(insnbuf, ktla_ktva(start), insn_len);
18213
18214 return insn_len;
18215 }
18216 @@ -304,7 +311,7 @@ void arch_flush_lazy_mmu_mode(void)
18217 preempt_enable();
18218 }
18219
18220 -struct pv_info pv_info = {
18221 +struct pv_info pv_info __read_only = {
18222 .name = "bare hardware",
18223 .paravirt_enabled = 0,
18224 .kernel_rpl = 0,
18225 @@ -315,16 +322,16 @@ struct pv_info pv_info = {
18226 #endif
18227 };
18228
18229 -struct pv_init_ops pv_init_ops = {
18230 +struct pv_init_ops pv_init_ops __read_only = {
18231 .patch = native_patch,
18232 };
18233
18234 -struct pv_time_ops pv_time_ops = {
18235 +struct pv_time_ops pv_time_ops __read_only = {
18236 .sched_clock = native_sched_clock,
18237 .steal_clock = native_steal_clock,
18238 };
18239
18240 -struct pv_irq_ops pv_irq_ops = {
18241 +struct pv_irq_ops pv_irq_ops __read_only = {
18242 .save_fl = __PV_IS_CALLEE_SAVE(native_save_fl),
18243 .restore_fl = __PV_IS_CALLEE_SAVE(native_restore_fl),
18244 .irq_disable = __PV_IS_CALLEE_SAVE(native_irq_disable),
18245 @@ -336,7 +343,7 @@ struct pv_irq_ops pv_irq_ops = {
18246 #endif
18247 };
18248
18249 -struct pv_cpu_ops pv_cpu_ops = {
18250 +struct pv_cpu_ops pv_cpu_ops __read_only = {
18251 .cpuid = native_cpuid,
18252 .get_debugreg = native_get_debugreg,
18253 .set_debugreg = native_set_debugreg,
18254 @@ -397,21 +404,26 @@ struct pv_cpu_ops pv_cpu_ops = {
18255 .end_context_switch = paravirt_nop,
18256 };
18257
18258 -struct pv_apic_ops pv_apic_ops = {
18259 +struct pv_apic_ops pv_apic_ops __read_only = {
18260 #ifdef CONFIG_X86_LOCAL_APIC
18261 .startup_ipi_hook = paravirt_nop,
18262 #endif
18263 };
18264
18265 -#if defined(CONFIG_X86_32) && !defined(CONFIG_X86_PAE)
18266 +#ifdef CONFIG_X86_32
18267 +#ifdef CONFIG_X86_PAE
18268 +/* 64-bit pagetable entries */
18269 +#define PTE_IDENT PV_CALLEE_SAVE(_paravirt_ident_64)
18270 +#else
18271 /* 32-bit pagetable entries */
18272 #define PTE_IDENT __PV_IS_CALLEE_SAVE(_paravirt_ident_32)
18273 +#endif
18274 #else
18275 /* 64-bit pagetable entries */
18276 #define PTE_IDENT __PV_IS_CALLEE_SAVE(_paravirt_ident_64)
18277 #endif
18278
18279 -struct pv_mmu_ops pv_mmu_ops = {
18280 +struct pv_mmu_ops pv_mmu_ops __read_only = {
18281
18282 .read_cr2 = native_read_cr2,
18283 .write_cr2 = native_write_cr2,
18284 @@ -461,6 +473,7 @@ struct pv_mmu_ops pv_mmu_ops = {
18285 .make_pud = PTE_IDENT,
18286
18287 .set_pgd = native_set_pgd,
18288 + .set_pgd_batched = native_set_pgd_batched,
18289 #endif
18290 #endif /* PAGETABLE_LEVELS >= 3 */
18291
18292 @@ -480,6 +493,12 @@ struct pv_mmu_ops pv_mmu_ops = {
18293 },
18294
18295 .set_fixmap = native_set_fixmap,
18296 +
18297 +#ifdef CONFIG_PAX_KERNEXEC
18298 + .pax_open_kernel = native_pax_open_kernel,
18299 + .pax_close_kernel = native_pax_close_kernel,
18300 +#endif
18301 +
18302 };
18303
18304 EXPORT_SYMBOL_GPL(pv_time_ops);
18305 diff --git a/arch/x86/kernel/pci-iommu_table.c b/arch/x86/kernel/pci-iommu_table.c
18306 index 35ccf75..7a15747 100644
18307 --- a/arch/x86/kernel/pci-iommu_table.c
18308 +++ b/arch/x86/kernel/pci-iommu_table.c
18309 @@ -2,7 +2,7 @@
18310 #include <asm/iommu_table.h>
18311 #include <linux/string.h>
18312 #include <linux/kallsyms.h>
18313 -
18314 +#include <linux/sched.h>
18315
18316 #define DEBUG 1
18317
18318 diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c
18319 index 735279e..5008677 100644
18320 --- a/arch/x86/kernel/process.c
18321 +++ b/arch/x86/kernel/process.c
18322 @@ -34,7 +34,8 @@
18323 * section. Since TSS's are completely CPU-local, we want them
18324 * on exact cacheline boundaries, to eliminate cacheline ping-pong.
18325 */
18326 -DEFINE_PER_CPU_SHARED_ALIGNED(struct tss_struct, init_tss) = INIT_TSS;
18327 +struct tss_struct init_tss[NR_CPUS] ____cacheline_internodealigned_in_smp = { [0 ... NR_CPUS-1] = INIT_TSS };
18328 +EXPORT_SYMBOL(init_tss);
18329
18330 #ifdef CONFIG_X86_64
18331 static DEFINE_PER_CPU(unsigned char, is_idle);
18332 @@ -92,7 +93,7 @@ void arch_task_cache_init(void)
18333 task_xstate_cachep =
18334 kmem_cache_create("task_xstate", xstate_size,
18335 __alignof__(union thread_xstate),
18336 - SLAB_PANIC | SLAB_NOTRACK, NULL);
18337 + SLAB_PANIC | SLAB_NOTRACK | SLAB_USERCOPY, NULL);
18338 }
18339
18340 static inline void drop_fpu(struct task_struct *tsk)
18341 @@ -115,7 +116,7 @@ void exit_thread(void)
18342 unsigned long *bp = t->io_bitmap_ptr;
18343
18344 if (bp) {
18345 - struct tss_struct *tss = &per_cpu(init_tss, get_cpu());
18346 + struct tss_struct *tss = init_tss + get_cpu();
18347
18348 t->io_bitmap_ptr = NULL;
18349 clear_thread_flag(TIF_IO_BITMAP);
18350 @@ -147,7 +148,7 @@ void show_regs_common(void)
18351
18352 printk(KERN_CONT "\n");
18353 printk(KERN_DEFAULT "Pid: %d, comm: %.20s %s %s %.*s",
18354 - current->pid, current->comm, print_tainted(),
18355 + task_pid_nr(current), current->comm, print_tainted(),
18356 init_utsname()->release,
18357 (int)strcspn(init_utsname()->version, " "),
18358 init_utsname()->version);
18359 @@ -161,6 +162,9 @@ void flush_thread(void)
18360 {
18361 struct task_struct *tsk = current;
18362
18363 +#if defined(CONFIG_X86_32) && !defined(CONFIG_CC_STACKPROTECTOR) && !defined(CONFIG_PAX_MEMORY_UDEREF)
18364 + loadsegment(gs, 0);
18365 +#endif
18366 flush_ptrace_hw_breakpoint(tsk);
18367 memset(tsk->thread.tls_array, 0, sizeof(tsk->thread.tls_array));
18368 drop_fpu(tsk);
18369 @@ -318,10 +322,10 @@ int kernel_thread(int (*fn)(void *), void *arg, unsigned long flags)
18370 regs.di = (unsigned long) arg;
18371
18372 #ifdef CONFIG_X86_32
18373 - regs.ds = __USER_DS;
18374 - regs.es = __USER_DS;
18375 + regs.ds = __KERNEL_DS;
18376 + regs.es = __KERNEL_DS;
18377 regs.fs = __KERNEL_PERCPU;
18378 - regs.gs = __KERNEL_STACK_CANARY;
18379 + savesegment(gs, regs.gs);
18380 #else
18381 regs.ss = __KERNEL_DS;
18382 #endif
18383 @@ -407,7 +411,7 @@ static void __exit_idle(void)
18384 void exit_idle(void)
18385 {
18386 /* idle loop has pid 0 */
18387 - if (current->pid)
18388 + if (task_pid_nr(current))
18389 return;
18390 __exit_idle();
18391 }
18392 @@ -516,7 +520,7 @@ bool set_pm_idle_to_default(void)
18393
18394 return ret;
18395 }
18396 -void stop_this_cpu(void *dummy)
18397 +__noreturn void stop_this_cpu(void *dummy)
18398 {
18399 local_irq_disable();
18400 /*
18401 @@ -746,16 +750,37 @@ static int __init idle_setup(char *str)
18402 }
18403 early_param("idle", idle_setup);
18404
18405 -unsigned long arch_align_stack(unsigned long sp)
18406 +#ifdef CONFIG_PAX_RANDKSTACK
18407 +void pax_randomize_kstack(struct pt_regs *regs)
18408 {
18409 - if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space)
18410 - sp -= get_random_int() % 8192;
18411 - return sp & ~0xf;
18412 -}
18413 + struct thread_struct *thread = &current->thread;
18414 + unsigned long time;
18415
18416 -unsigned long arch_randomize_brk(struct mm_struct *mm)
18417 -{
18418 - unsigned long range_end = mm->brk + 0x02000000;
18419 - return randomize_range(mm->brk, range_end, 0) ? : mm->brk;
18420 -}
18421 + if (!randomize_va_space)
18422 + return;
18423 +
18424 + if (v8086_mode(regs))
18425 + return;
18426
18427 + rdtscl(time);
18428 +
18429 + /* P4 seems to return a 0 LSB, ignore it */
18430 +#ifdef CONFIG_MPENTIUM4
18431 + time &= 0x3EUL;
18432 + time <<= 2;
18433 +#elif defined(CONFIG_X86_64)
18434 + time &= 0xFUL;
18435 + time <<= 4;
18436 +#else
18437 + time &= 0x1FUL;
18438 + time <<= 3;
18439 +#endif
18440 +
18441 + thread->sp0 ^= time;
18442 + load_sp0(init_tss + smp_processor_id(), thread);
18443 +
18444 +#ifdef CONFIG_X86_64
18445 + this_cpu_write(kernel_stack, thread->sp0);
18446 +#endif
18447 +}
18448 +#endif
18449 diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c
18450 index 516fa18..80bd9e6 100644
18451 --- a/arch/x86/kernel/process_32.c
18452 +++ b/arch/x86/kernel/process_32.c
18453 @@ -64,6 +64,7 @@ asmlinkage void ret_from_fork(void) __asm__("ret_from_fork");
18454 unsigned long thread_saved_pc(struct task_struct *tsk)
18455 {
18456 return ((unsigned long *)tsk->thread.sp)[3];
18457 +//XXX return tsk->thread.eip;
18458 }
18459
18460 void __show_regs(struct pt_regs *regs, int all)
18461 @@ -73,15 +74,14 @@ void __show_regs(struct pt_regs *regs, int all)
18462 unsigned long sp;
18463 unsigned short ss, gs;
18464
18465 - if (user_mode_vm(regs)) {
18466 + if (user_mode(regs)) {
18467 sp = regs->sp;
18468 ss = regs->ss & 0xffff;
18469 - gs = get_user_gs(regs);
18470 } else {
18471 sp = kernel_stack_pointer(regs);
18472 savesegment(ss, ss);
18473 - savesegment(gs, gs);
18474 }
18475 + gs = get_user_gs(regs);
18476
18477 show_regs_common();
18478
18479 @@ -134,13 +134,14 @@ int copy_thread(unsigned long clone_flags, unsigned long sp,
18480 struct task_struct *tsk;
18481 int err;
18482
18483 - childregs = task_pt_regs(p);
18484 + childregs = task_stack_page(p) + THREAD_SIZE - sizeof(struct pt_regs) - 8;
18485 *childregs = *regs;
18486 childregs->ax = 0;
18487 childregs->sp = sp;
18488
18489 p->thread.sp = (unsigned long) childregs;
18490 p->thread.sp0 = (unsigned long) (childregs+1);
18491 + p->tinfo.lowest_stack = (unsigned long)task_stack_page(p);
18492
18493 p->thread.ip = (unsigned long) ret_from_fork;
18494
18495 @@ -231,7 +232,7 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
18496 struct thread_struct *prev = &prev_p->thread,
18497 *next = &next_p->thread;
18498 int cpu = smp_processor_id();
18499 - struct tss_struct *tss = &per_cpu(init_tss, cpu);
18500 + struct tss_struct *tss = init_tss + cpu;
18501 fpu_switch_t fpu;
18502
18503 /* never put a printk in __switch_to... printk() calls wake_up*() indirectly */
18504 @@ -255,6 +256,10 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
18505 */
18506 lazy_save_gs(prev->gs);
18507
18508 +#ifdef CONFIG_PAX_MEMORY_UDEREF
18509 + __set_fs(task_thread_info(next_p)->addr_limit);
18510 +#endif
18511 +
18512 /*
18513 * Load the per-thread Thread-Local Storage descriptor.
18514 */
18515 @@ -285,6 +290,9 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
18516 */
18517 arch_end_context_switch(next_p);
18518
18519 + this_cpu_write(current_task, next_p);
18520 + this_cpu_write(current_tinfo, &next_p->tinfo);
18521 +
18522 /*
18523 * Restore %gs if needed (which is common)
18524 */
18525 @@ -293,8 +301,6 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
18526
18527 switch_fpu_finish(next_p, fpu);
18528
18529 - this_cpu_write(current_task, next_p);
18530 -
18531 return prev_p;
18532 }
18533
18534 @@ -324,4 +330,3 @@ unsigned long get_wchan(struct task_struct *p)
18535 } while (count++ < 16);
18536 return 0;
18537 }
18538 -
18539 diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
18540 index 61cdf7f..797f06a 100644
18541 --- a/arch/x86/kernel/process_64.c
18542 +++ b/arch/x86/kernel/process_64.c
18543 @@ -153,8 +153,7 @@ int copy_thread(unsigned long clone_flags, unsigned long sp,
18544 struct pt_regs *childregs;
18545 struct task_struct *me = current;
18546
18547 - childregs = ((struct pt_regs *)
18548 - (THREAD_SIZE + task_stack_page(p))) - 1;
18549 + childregs = task_stack_page(p) + THREAD_SIZE - sizeof(struct pt_regs) - 16;
18550 *childregs = *regs;
18551
18552 childregs->ax = 0;
18553 @@ -166,6 +165,7 @@ int copy_thread(unsigned long clone_flags, unsigned long sp,
18554 p->thread.sp = (unsigned long) childregs;
18555 p->thread.sp0 = (unsigned long) (childregs+1);
18556 p->thread.usersp = me->thread.usersp;
18557 + p->tinfo.lowest_stack = (unsigned long)task_stack_page(p);
18558
18559 set_tsk_thread_flag(p, TIF_FORK);
18560
18561 @@ -271,7 +271,7 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
18562 struct thread_struct *prev = &prev_p->thread;
18563 struct thread_struct *next = &next_p->thread;
18564 int cpu = smp_processor_id();
18565 - struct tss_struct *tss = &per_cpu(init_tss, cpu);
18566 + struct tss_struct *tss = init_tss + cpu;
18567 unsigned fsindex, gsindex;
18568 fpu_switch_t fpu;
18569
18570 @@ -353,10 +353,9 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
18571 prev->usersp = this_cpu_read(old_rsp);
18572 this_cpu_write(old_rsp, next->usersp);
18573 this_cpu_write(current_task, next_p);
18574 + this_cpu_write(current_tinfo, &next_p->tinfo);
18575
18576 - this_cpu_write(kernel_stack,
18577 - (unsigned long)task_stack_page(next_p) +
18578 - THREAD_SIZE - KERNEL_STACK_OFFSET);
18579 + this_cpu_write(kernel_stack, next->sp0);
18580
18581 /*
18582 * Now maybe reload the debug registers and handle I/O bitmaps
18583 @@ -425,12 +424,11 @@ unsigned long get_wchan(struct task_struct *p)
18584 if (!p || p == current || p->state == TASK_RUNNING)
18585 return 0;
18586 stack = (unsigned long)task_stack_page(p);
18587 - if (p->thread.sp < stack || p->thread.sp >= stack+THREAD_SIZE)
18588 + if (p->thread.sp < stack || p->thread.sp > stack+THREAD_SIZE-16-sizeof(u64))
18589 return 0;
18590 fp = *(u64 *)(p->thread.sp);
18591 do {
18592 - if (fp < (unsigned long)stack ||
18593 - fp >= (unsigned long)stack+THREAD_SIZE)
18594 + if (fp < stack || fp > stack+THREAD_SIZE-16-sizeof(u64))
18595 return 0;
18596 ip = *(u64 *)(fp+8);
18597 if (!in_sched_functions(ip))
18598 diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c
18599 index c4c6a5c..905f440 100644
18600 --- a/arch/x86/kernel/ptrace.c
18601 +++ b/arch/x86/kernel/ptrace.c
18602 @@ -824,7 +824,7 @@ long arch_ptrace(struct task_struct *child, long request,
18603 unsigned long addr, unsigned long data)
18604 {
18605 int ret;
18606 - unsigned long __user *datap = (unsigned long __user *)data;
18607 + unsigned long __user *datap = (__force unsigned long __user *)data;
18608
18609 switch (request) {
18610 /* read the word at location addr in the USER area. */
18611 @@ -909,14 +909,14 @@ long arch_ptrace(struct task_struct *child, long request,
18612 if ((int) addr < 0)
18613 return -EIO;
18614 ret = do_get_thread_area(child, addr,
18615 - (struct user_desc __user *)data);
18616 + (__force struct user_desc __user *) data);
18617 break;
18618
18619 case PTRACE_SET_THREAD_AREA:
18620 if ((int) addr < 0)
18621 return -EIO;
18622 ret = do_set_thread_area(child, addr,
18623 - (struct user_desc __user *)data, 0);
18624 + (__force struct user_desc __user *) data, 0);
18625 break;
18626 #endif
18627
18628 @@ -1426,7 +1426,7 @@ static void fill_sigtrap_info(struct task_struct *tsk,
18629 memset(info, 0, sizeof(*info));
18630 info->si_signo = SIGTRAP;
18631 info->si_code = si_code;
18632 - info->si_addr = user_mode_vm(regs) ? (void __user *)regs->ip : NULL;
18633 + info->si_addr = user_mode(regs) ? (__force void __user *)regs->ip : NULL;
18634 }
18635
18636 void user_single_step_siginfo(struct task_struct *tsk,
18637 @@ -1455,6 +1455,10 @@ void send_sigtrap(struct task_struct *tsk, struct pt_regs *regs,
18638 # define IS_IA32 0
18639 #endif
18640
18641 +#ifdef CONFIG_GRKERNSEC_SETXID
18642 +extern void gr_delayed_cred_worker(void);
18643 +#endif
18644 +
18645 /*
18646 * We must return the syscall number to actually look up in the table.
18647 * This can be -1L to skip running any syscall at all.
18648 @@ -1463,6 +1467,11 @@ long syscall_trace_enter(struct pt_regs *regs)
18649 {
18650 long ret = 0;
18651
18652 +#ifdef CONFIG_GRKERNSEC_SETXID
18653 + if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID)))
18654 + gr_delayed_cred_worker();
18655 +#endif
18656 +
18657 /*
18658 * If we stepped into a sysenter/syscall insn, it trapped in
18659 * kernel mode; do_debug() cleared TF and set TIF_SINGLESTEP.
18660 @@ -1511,6 +1520,11 @@ void syscall_trace_leave(struct pt_regs *regs)
18661 {
18662 bool step;
18663
18664 +#ifdef CONFIG_GRKERNSEC_SETXID
18665 + if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID)))
18666 + gr_delayed_cred_worker();
18667 +#endif
18668 +
18669 audit_syscall_exit(regs);
18670
18671 if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
18672 diff --git a/arch/x86/kernel/pvclock.c b/arch/x86/kernel/pvclock.c
18673 index 42eb330..139955c 100644
18674 --- a/arch/x86/kernel/pvclock.c
18675 +++ b/arch/x86/kernel/pvclock.c
18676 @@ -81,11 +81,11 @@ unsigned long pvclock_tsc_khz(struct pvclock_vcpu_time_info *src)
18677 return pv_tsc_khz;
18678 }
18679
18680 -static atomic64_t last_value = ATOMIC64_INIT(0);
18681 +static atomic64_unchecked_t last_value = ATOMIC64_INIT(0);
18682
18683 void pvclock_resume(void)
18684 {
18685 - atomic64_set(&last_value, 0);
18686 + atomic64_set_unchecked(&last_value, 0);
18687 }
18688
18689 cycle_t pvclock_clocksource_read(struct pvclock_vcpu_time_info *src)
18690 @@ -121,11 +121,11 @@ cycle_t pvclock_clocksource_read(struct pvclock_vcpu_time_info *src)
18691 * updating at the same time, and one of them could be slightly behind,
18692 * making the assumption that last_value always go forward fail to hold.
18693 */
18694 - last = atomic64_read(&last_value);
18695 + last = atomic64_read_unchecked(&last_value);
18696 do {
18697 if (ret < last)
18698 return last;
18699 - last = atomic64_cmpxchg(&last_value, last, ret);
18700 + last = atomic64_cmpxchg_unchecked(&last_value, last, ret);
18701 } while (unlikely(last != ret));
18702
18703 return ret;
18704 diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c
18705 index 5de92f1..2732385 100644
18706 --- a/arch/x86/kernel/reboot.c
18707 +++ b/arch/x86/kernel/reboot.c
18708 @@ -36,7 +36,7 @@ void (*pm_power_off)(void);
18709 EXPORT_SYMBOL(pm_power_off);
18710
18711 static const struct desc_ptr no_idt = {};
18712 -static int reboot_mode;
18713 +static unsigned short reboot_mode;
18714 enum reboot_type reboot_type = BOOT_ACPI;
18715 int reboot_force;
18716
18717 @@ -157,11 +157,15 @@ static int __init set_bios_reboot(const struct dmi_system_id *d)
18718 return 0;
18719 }
18720
18721 -void machine_real_restart(unsigned int type)
18722 +__noreturn void machine_real_restart(unsigned int type)
18723 {
18724 - void (*restart_lowmem)(unsigned int) = (void (*)(unsigned int))
18725 + void (* restart_lowmem)(unsigned int) = (void (*)(unsigned int))
18726 real_mode_header->machine_real_restart_asm;
18727
18728 +#if defined(CONFIG_X86_32) && (defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF))
18729 + struct desc_struct *gdt;
18730 +#endif
18731 +
18732 local_irq_disable();
18733
18734 /*
18735 @@ -189,10 +193,36 @@ void machine_real_restart(unsigned int type)
18736 * boot)". This seems like a fairly standard thing that gets set by
18737 * REBOOT.COM programs, and the previous reset routine did this
18738 * too. */
18739 - *((unsigned short *)0x472) = reboot_mode;
18740 + *(unsigned short *)(__va(0x472)) = reboot_mode;
18741
18742 /* Jump to the identity-mapped low memory code */
18743 +
18744 +#if defined(CONFIG_X86_32) && (defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF))
18745 + gdt = get_cpu_gdt_table(smp_processor_id());
18746 + pax_open_kernel();
18747 +#ifdef CONFIG_PAX_MEMORY_UDEREF
18748 + gdt[GDT_ENTRY_KERNEL_DS].type = 3;
18749 + gdt[GDT_ENTRY_KERNEL_DS].limit = 0xf;
18750 + asm("mov %0, %%ds; mov %0, %%es; mov %0, %%ss" : : "r" (__KERNEL_DS) : "memory");
18751 +#endif
18752 +#ifdef CONFIG_PAX_KERNEXEC
18753 + gdt[GDT_ENTRY_KERNEL_CS].base0 = 0;
18754 + gdt[GDT_ENTRY_KERNEL_CS].base1 = 0;
18755 + gdt[GDT_ENTRY_KERNEL_CS].base2 = 0;
18756 + gdt[GDT_ENTRY_KERNEL_CS].limit0 = 0xffff;
18757 + gdt[GDT_ENTRY_KERNEL_CS].limit = 0xf;
18758 + gdt[GDT_ENTRY_KERNEL_CS].g = 1;
18759 +#endif
18760 + pax_close_kernel();
18761 +#endif
18762 +
18763 +#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
18764 + asm volatile("push %0; push %1; lret\n" : : "i" (__KERNEL_CS), "rm" (restart_lowmem), "a" (type));
18765 + unreachable();
18766 +#else
18767 restart_lowmem(type);
18768 +#endif
18769 +
18770 }
18771 #ifdef CONFIG_APM_MODULE
18772 EXPORT_SYMBOL(machine_real_restart);
18773 @@ -543,7 +573,7 @@ void __attribute__((weak)) mach_reboot_fixups(void)
18774 * try to force a triple fault and then cycle between hitting the keyboard
18775 * controller and doing that
18776 */
18777 -static void native_machine_emergency_restart(void)
18778 +__noreturn static void native_machine_emergency_restart(void)
18779 {
18780 int i;
18781 int attempt = 0;
18782 @@ -670,13 +700,13 @@ void native_machine_shutdown(void)
18783 #endif
18784 }
18785
18786 -static void __machine_emergency_restart(int emergency)
18787 +static __noreturn void __machine_emergency_restart(int emergency)
18788 {
18789 reboot_emergency = emergency;
18790 machine_ops.emergency_restart();
18791 }
18792
18793 -static void native_machine_restart(char *__unused)
18794 +static __noreturn void native_machine_restart(char *__unused)
18795 {
18796 printk("machine restart\n");
18797
18798 @@ -685,7 +715,7 @@ static void native_machine_restart(char *__unused)
18799 __machine_emergency_restart(0);
18800 }
18801
18802 -static void native_machine_halt(void)
18803 +static __noreturn void native_machine_halt(void)
18804 {
18805 /* Stop other cpus and apics */
18806 machine_shutdown();
18807 @@ -695,7 +725,7 @@ static void native_machine_halt(void)
18808 stop_this_cpu(NULL);
18809 }
18810
18811 -static void native_machine_power_off(void)
18812 +__noreturn static void native_machine_power_off(void)
18813 {
18814 if (pm_power_off) {
18815 if (!reboot_force)
18816 @@ -704,6 +734,7 @@ static void native_machine_power_off(void)
18817 }
18818 /* A fallback in case there is no PM info available */
18819 tboot_shutdown(TB_SHUTDOWN_HALT);
18820 + unreachable();
18821 }
18822
18823 struct machine_ops machine_ops = {
18824 diff --git a/arch/x86/kernel/relocate_kernel_64.S b/arch/x86/kernel/relocate_kernel_64.S
18825 index 7a6f3b3..bed145d7 100644
18826 --- a/arch/x86/kernel/relocate_kernel_64.S
18827 +++ b/arch/x86/kernel/relocate_kernel_64.S
18828 @@ -11,6 +11,7 @@
18829 #include <asm/kexec.h>
18830 #include <asm/processor-flags.h>
18831 #include <asm/pgtable_types.h>
18832 +#include <asm/alternative-asm.h>
18833
18834 /*
18835 * Must be relocatable PIC code callable as a C function
18836 @@ -160,13 +161,14 @@ identity_mapped:
18837 xorq %rbp, %rbp
18838 xorq %r8, %r8
18839 xorq %r9, %r9
18840 - xorq %r10, %r9
18841 + xorq %r10, %r10
18842 xorq %r11, %r11
18843 xorq %r12, %r12
18844 xorq %r13, %r13
18845 xorq %r14, %r14
18846 xorq %r15, %r15
18847
18848 + pax_force_retaddr 0, 1
18849 ret
18850
18851 1:
18852 diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
18853 index 16be6dc..4686132 100644
18854 --- a/arch/x86/kernel/setup.c
18855 +++ b/arch/x86/kernel/setup.c
18856 @@ -440,7 +440,7 @@ static void __init parse_setup_data(void)
18857
18858 switch (data->type) {
18859 case SETUP_E820_EXT:
18860 - parse_e820_ext(data);
18861 + parse_e820_ext((struct setup_data __force_kernel *)data);
18862 break;
18863 case SETUP_DTB:
18864 add_dtb(pa_data);
18865 @@ -632,7 +632,7 @@ static void __init trim_bios_range(void)
18866 * area (640->1Mb) as ram even though it is not.
18867 * take them out.
18868 */
18869 - e820_remove_range(BIOS_BEGIN, BIOS_END - BIOS_BEGIN, E820_RAM, 1);
18870 + e820_remove_range(ISA_START_ADDRESS, ISA_END_ADDRESS - ISA_START_ADDRESS, E820_RAM, 1);
18871 sanitize_e820_map(e820.map, ARRAY_SIZE(e820.map), &e820.nr_map);
18872 }
18873
18874 @@ -755,14 +755,14 @@ void __init setup_arch(char **cmdline_p)
18875
18876 if (!boot_params.hdr.root_flags)
18877 root_mountflags &= ~MS_RDONLY;
18878 - init_mm.start_code = (unsigned long) _text;
18879 - init_mm.end_code = (unsigned long) _etext;
18880 + init_mm.start_code = ktla_ktva((unsigned long) _text);
18881 + init_mm.end_code = ktla_ktva((unsigned long) _etext);
18882 init_mm.end_data = (unsigned long) _edata;
18883 init_mm.brk = _brk_end;
18884
18885 - code_resource.start = virt_to_phys(_text);
18886 - code_resource.end = virt_to_phys(_etext)-1;
18887 - data_resource.start = virt_to_phys(_etext);
18888 + code_resource.start = virt_to_phys(ktla_ktva(_text));
18889 + code_resource.end = virt_to_phys(ktla_ktva(_etext))-1;
18890 + data_resource.start = virt_to_phys(_sdata);
18891 data_resource.end = virt_to_phys(_edata)-1;
18892 bss_resource.start = virt_to_phys(&__bss_start);
18893 bss_resource.end = virt_to_phys(&__bss_stop)-1;
18894 diff --git a/arch/x86/kernel/setup_percpu.c b/arch/x86/kernel/setup_percpu.c
18895 index 5a98aa2..2f9288d 100644
18896 --- a/arch/x86/kernel/setup_percpu.c
18897 +++ b/arch/x86/kernel/setup_percpu.c
18898 @@ -21,19 +21,17 @@
18899 #include <asm/cpu.h>
18900 #include <asm/stackprotector.h>
18901
18902 -DEFINE_PER_CPU(int, cpu_number);
18903 +#ifdef CONFIG_SMP
18904 +DEFINE_PER_CPU(unsigned int, cpu_number);
18905 EXPORT_PER_CPU_SYMBOL(cpu_number);
18906 +#endif
18907
18908 -#ifdef CONFIG_X86_64
18909 #define BOOT_PERCPU_OFFSET ((unsigned long)__per_cpu_load)
18910 -#else
18911 -#define BOOT_PERCPU_OFFSET 0
18912 -#endif
18913
18914 DEFINE_PER_CPU(unsigned long, this_cpu_off) = BOOT_PERCPU_OFFSET;
18915 EXPORT_PER_CPU_SYMBOL(this_cpu_off);
18916
18917 -unsigned long __per_cpu_offset[NR_CPUS] __read_mostly = {
18918 +unsigned long __per_cpu_offset[NR_CPUS] __read_only = {
18919 [0 ... NR_CPUS-1] = BOOT_PERCPU_OFFSET,
18920 };
18921 EXPORT_SYMBOL(__per_cpu_offset);
18922 @@ -155,10 +153,10 @@ static inline void setup_percpu_segment(int cpu)
18923 {
18924 #ifdef CONFIG_X86_32
18925 struct desc_struct gdt;
18926 + unsigned long base = per_cpu_offset(cpu);
18927
18928 - pack_descriptor(&gdt, per_cpu_offset(cpu), 0xFFFFF,
18929 - 0x2 | DESCTYPE_S, 0x8);
18930 - gdt.s = 1;
18931 + pack_descriptor(&gdt, base, (VMALLOC_END - base - 1) >> PAGE_SHIFT,
18932 + 0x83 | DESCTYPE_S, 0xC);
18933 write_gdt_entry(get_cpu_gdt_table(cpu),
18934 GDT_ENTRY_PERCPU, &gdt, DESCTYPE_S);
18935 #endif
18936 @@ -219,6 +217,11 @@ void __init setup_per_cpu_areas(void)
18937 /* alrighty, percpu areas up and running */
18938 delta = (unsigned long)pcpu_base_addr - (unsigned long)__per_cpu_start;
18939 for_each_possible_cpu(cpu) {
18940 +#ifdef CONFIG_CC_STACKPROTECTOR
18941 +#ifdef CONFIG_X86_32
18942 + unsigned long canary = per_cpu(stack_canary.canary, cpu);
18943 +#endif
18944 +#endif
18945 per_cpu_offset(cpu) = delta + pcpu_unit_offsets[cpu];
18946 per_cpu(this_cpu_off, cpu) = per_cpu_offset(cpu);
18947 per_cpu(cpu_number, cpu) = cpu;
18948 @@ -259,6 +262,12 @@ void __init setup_per_cpu_areas(void)
18949 */
18950 set_cpu_numa_node(cpu, early_cpu_to_node(cpu));
18951 #endif
18952 +#ifdef CONFIG_CC_STACKPROTECTOR
18953 +#ifdef CONFIG_X86_32
18954 + if (!cpu)
18955 + per_cpu(stack_canary.canary, cpu) = canary;
18956 +#endif
18957 +#endif
18958 /*
18959 * Up to this point, the boot CPU has been using .init.data
18960 * area. Reload any changed state for the boot CPU.
18961 diff --git a/arch/x86/kernel/signal.c b/arch/x86/kernel/signal.c
18962 index 21af737..fb45e22 100644
18963 --- a/arch/x86/kernel/signal.c
18964 +++ b/arch/x86/kernel/signal.c
18965 @@ -191,7 +191,7 @@ static unsigned long align_sigframe(unsigned long sp)
18966 * Align the stack pointer according to the i386 ABI,
18967 * i.e. so that on function entry ((sp + 4) & 15) == 0.
18968 */
18969 - sp = ((sp + 4) & -16ul) - 4;
18970 + sp = ((sp - 12) & -16ul) - 4;
18971 #else /* !CONFIG_X86_32 */
18972 sp = round_down(sp, 16) - 8;
18973 #endif
18974 @@ -242,11 +242,11 @@ get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, size_t frame_size,
18975 * Return an always-bogus address instead so we will die with SIGSEGV.
18976 */
18977 if (onsigstack && !likely(on_sig_stack(sp)))
18978 - return (void __user *)-1L;
18979 + return (__force void __user *)-1L;
18980
18981 /* save i387 state */
18982 if (used_math() && save_i387_xstate(*fpstate) < 0)
18983 - return (void __user *)-1L;
18984 + return (__force void __user *)-1L;
18985
18986 return (void __user *)sp;
18987 }
18988 @@ -301,9 +301,9 @@ __setup_frame(int sig, struct k_sigaction *ka, sigset_t *set,
18989 }
18990
18991 if (current->mm->context.vdso)
18992 - restorer = VDSO32_SYMBOL(current->mm->context.vdso, sigreturn);
18993 + restorer = (__force void __user *)VDSO32_SYMBOL(current->mm->context.vdso, sigreturn);
18994 else
18995 - restorer = &frame->retcode;
18996 + restorer = (void __user *)&frame->retcode;
18997 if (ka->sa.sa_flags & SA_RESTORER)
18998 restorer = ka->sa.sa_restorer;
18999
19000 @@ -317,7 +317,7 @@ __setup_frame(int sig, struct k_sigaction *ka, sigset_t *set,
19001 * reasons and because gdb uses it as a signature to notice
19002 * signal handler stack frames.
19003 */
19004 - err |= __put_user(*((u64 *)&retcode), (u64 *)frame->retcode);
19005 + err |= __put_user(*((u64 *)&retcode), (u64 __user *)frame->retcode);
19006
19007 if (err)
19008 return -EFAULT;
19009 @@ -371,7 +371,10 @@ static int __setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
19010 err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));
19011
19012 /* Set up to return from userspace. */
19013 - restorer = VDSO32_SYMBOL(current->mm->context.vdso, rt_sigreturn);
19014 + if (current->mm->context.vdso)
19015 + restorer = (__force void __user *)VDSO32_SYMBOL(current->mm->context.vdso, rt_sigreturn);
19016 + else
19017 + restorer = (void __user *)&frame->retcode;
19018 if (ka->sa.sa_flags & SA_RESTORER)
19019 restorer = ka->sa.sa_restorer;
19020 put_user_ex(restorer, &frame->pretcode);
19021 @@ -383,7 +386,7 @@ static int __setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
19022 * reasons and because gdb uses it as a signature to notice
19023 * signal handler stack frames.
19024 */
19025 - put_user_ex(*((u64 *)&rt_retcode), (u64 *)frame->retcode);
19026 + put_user_ex(*((u64 *)&rt_retcode), (u64 __user *)frame->retcode);
19027 } put_user_catch(err);
19028
19029 if (err)
19030 diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
19031 index 7bd8a08..2659b5b 100644
19032 --- a/arch/x86/kernel/smpboot.c
19033 +++ b/arch/x86/kernel/smpboot.c
19034 @@ -679,6 +679,7 @@ static int __cpuinit do_boot_cpu(int apicid, int cpu, struct task_struct *idle)
19035 idle->thread.sp = (unsigned long) (((struct pt_regs *)
19036 (THREAD_SIZE + task_stack_page(idle))) - 1);
19037 per_cpu(current_task, cpu) = idle;
19038 + per_cpu(current_tinfo, cpu) = &idle->tinfo;
19039
19040 #ifdef CONFIG_X86_32
19041 /* Stack for startup_32 can be just as for start_secondary onwards */
19042 @@ -686,11 +687,13 @@ static int __cpuinit do_boot_cpu(int apicid, int cpu, struct task_struct *idle)
19043 #else
19044 clear_tsk_thread_flag(idle, TIF_FORK);
19045 initial_gs = per_cpu_offset(cpu);
19046 - per_cpu(kernel_stack, cpu) =
19047 - (unsigned long)task_stack_page(idle) -
19048 - KERNEL_STACK_OFFSET + THREAD_SIZE;
19049 + per_cpu(kernel_stack, cpu) = (unsigned long)task_stack_page(idle) - 16 + THREAD_SIZE;
19050 #endif
19051 +
19052 + pax_open_kernel();
19053 early_gdt_descr.address = (unsigned long)get_cpu_gdt_table(cpu);
19054 + pax_close_kernel();
19055 +
19056 initial_code = (unsigned long)start_secondary;
19057 stack_start = idle->thread.sp;
19058
19059 @@ -826,6 +829,12 @@ int __cpuinit native_cpu_up(unsigned int cpu, struct task_struct *tidle)
19060
19061 per_cpu(cpu_state, cpu) = CPU_UP_PREPARE;
19062
19063 +#ifdef CONFIG_PAX_PER_CPU_PGD
19064 + clone_pgd_range(get_cpu_pgd(cpu) + KERNEL_PGD_BOUNDARY,
19065 + swapper_pg_dir + KERNEL_PGD_BOUNDARY,
19066 + KERNEL_PGD_PTRS);
19067 +#endif
19068 +
19069 err = do_boot_cpu(apicid, cpu, tidle);
19070 if (err) {
19071 pr_debug("do_boot_cpu failed %d\n", err);
19072 diff --git a/arch/x86/kernel/step.c b/arch/x86/kernel/step.c
19073 index c346d11..d43b163 100644
19074 --- a/arch/x86/kernel/step.c
19075 +++ b/arch/x86/kernel/step.c
19076 @@ -27,10 +27,10 @@ unsigned long convert_ip_to_linear(struct task_struct *child, struct pt_regs *re
19077 struct desc_struct *desc;
19078 unsigned long base;
19079
19080 - seg &= ~7UL;
19081 + seg >>= 3;
19082
19083 mutex_lock(&child->mm->context.lock);
19084 - if (unlikely((seg >> 3) >= child->mm->context.size))
19085 + if (unlikely(seg >= child->mm->context.size))
19086 addr = -1L; /* bogus selector, access would fault */
19087 else {
19088 desc = child->mm->context.ldt + seg;
19089 @@ -42,7 +42,8 @@ unsigned long convert_ip_to_linear(struct task_struct *child, struct pt_regs *re
19090 addr += base;
19091 }
19092 mutex_unlock(&child->mm->context.lock);
19093 - }
19094 + } else if (seg == __KERNEL_CS || seg == __KERNEXEC_KERNEL_CS)
19095 + addr = ktla_ktva(addr);
19096
19097 return addr;
19098 }
19099 @@ -53,6 +54,9 @@ static int is_setting_trap_flag(struct task_struct *child, struct pt_regs *regs)
19100 unsigned char opcode[15];
19101 unsigned long addr = convert_ip_to_linear(child, regs);
19102
19103 + if (addr == -EINVAL)
19104 + return 0;
19105 +
19106 copied = access_process_vm(child, addr, opcode, sizeof(opcode), 0);
19107 for (i = 0; i < copied; i++) {
19108 switch (opcode[i]) {
19109 diff --git a/arch/x86/kernel/sys_i386_32.c b/arch/x86/kernel/sys_i386_32.c
19110 index 0b0cb5f..db6b9ed 100644
19111 --- a/arch/x86/kernel/sys_i386_32.c
19112 +++ b/arch/x86/kernel/sys_i386_32.c
19113 @@ -24,17 +24,224 @@
19114
19115 #include <asm/syscalls.h>
19116
19117 -/*
19118 - * Do a system call from kernel instead of calling sys_execve so we
19119 - * end up with proper pt_regs.
19120 - */
19121 -int kernel_execve(const char *filename,
19122 - const char *const argv[],
19123 - const char *const envp[])
19124 +int i386_mmap_check(unsigned long addr, unsigned long len, unsigned long flags)
19125 {
19126 - long __res;
19127 - asm volatile ("int $0x80"
19128 - : "=a" (__res)
19129 - : "0" (__NR_execve), "b" (filename), "c" (argv), "d" (envp) : "memory");
19130 - return __res;
19131 + unsigned long pax_task_size = TASK_SIZE;
19132 +
19133 +#ifdef CONFIG_PAX_SEGMEXEC
19134 + if (current->mm->pax_flags & MF_PAX_SEGMEXEC)
19135 + pax_task_size = SEGMEXEC_TASK_SIZE;
19136 +#endif
19137 +
19138 + if (len > pax_task_size || addr > pax_task_size - len)
19139 + return -EINVAL;
19140 +
19141 + return 0;
19142 +}
19143 +
19144 +unsigned long
19145 +arch_get_unmapped_area(struct file *filp, unsigned long addr,
19146 + unsigned long len, unsigned long pgoff, unsigned long flags)
19147 +{
19148 + struct mm_struct *mm = current->mm;
19149 + struct vm_area_struct *vma;
19150 + unsigned long start_addr, pax_task_size = TASK_SIZE;
19151 +
19152 +#ifdef CONFIG_PAX_SEGMEXEC
19153 + if (mm->pax_flags & MF_PAX_SEGMEXEC)
19154 + pax_task_size = SEGMEXEC_TASK_SIZE;
19155 +#endif
19156 +
19157 + pax_task_size -= PAGE_SIZE;
19158 +
19159 + if (len > pax_task_size)
19160 + return -ENOMEM;
19161 +
19162 + if (flags & MAP_FIXED)
19163 + return addr;
19164 +
19165 +#ifdef CONFIG_PAX_RANDMMAP
19166 + if (!(mm->pax_flags & MF_PAX_RANDMMAP))
19167 +#endif
19168 +
19169 + if (addr) {
19170 + addr = PAGE_ALIGN(addr);
19171 + if (pax_task_size - len >= addr) {
19172 + vma = find_vma(mm, addr);
19173 + if (check_heap_stack_gap(vma, addr, len))
19174 + return addr;
19175 + }
19176 + }
19177 + if (len > mm->cached_hole_size) {
19178 + start_addr = addr = mm->free_area_cache;
19179 + } else {
19180 + start_addr = addr = mm->mmap_base;
19181 + mm->cached_hole_size = 0;
19182 + }
19183 +
19184 +#ifdef CONFIG_PAX_PAGEEXEC
19185 + if (!(__supported_pte_mask & _PAGE_NX) && (mm->pax_flags & MF_PAX_PAGEEXEC) && (flags & MAP_EXECUTABLE) && start_addr >= mm->mmap_base) {
19186 + start_addr = 0x00110000UL;
19187 +
19188 +#ifdef CONFIG_PAX_RANDMMAP
19189 + if (mm->pax_flags & MF_PAX_RANDMMAP)
19190 + start_addr += mm->delta_mmap & 0x03FFF000UL;
19191 +#endif
19192 +
19193 + if (mm->start_brk <= start_addr && start_addr < mm->mmap_base)
19194 + start_addr = addr = mm->mmap_base;
19195 + else
19196 + addr = start_addr;
19197 + }
19198 +#endif
19199 +
19200 +full_search:
19201 + for (vma = find_vma(mm, addr); ; vma = vma->vm_next) {
19202 + /* At this point: (!vma || addr < vma->vm_end). */
19203 + if (pax_task_size - len < addr) {
19204 + /*
19205 + * Start a new search - just in case we missed
19206 + * some holes.
19207 + */
19208 + if (start_addr != mm->mmap_base) {
19209 + start_addr = addr = mm->mmap_base;
19210 + mm->cached_hole_size = 0;
19211 + goto full_search;
19212 + }
19213 + return -ENOMEM;
19214 + }
19215 + if (check_heap_stack_gap(vma, addr, len))
19216 + break;
19217 + if (addr + mm->cached_hole_size < vma->vm_start)
19218 + mm->cached_hole_size = vma->vm_start - addr;
19219 + addr = vma->vm_end;
19220 + if (mm->start_brk <= addr && addr < mm->mmap_base) {
19221 + start_addr = addr = mm->mmap_base;
19222 + mm->cached_hole_size = 0;
19223 + goto full_search;
19224 + }
19225 + }
19226 +
19227 + /*
19228 + * Remember the place where we stopped the search:
19229 + */
19230 + mm->free_area_cache = addr + len;
19231 + return addr;
19232 +}
19233 +
19234 +unsigned long
19235 +arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
19236 + const unsigned long len, const unsigned long pgoff,
19237 + const unsigned long flags)
19238 +{
19239 + struct vm_area_struct *vma;
19240 + struct mm_struct *mm = current->mm;
19241 + unsigned long base = mm->mmap_base, addr = addr0, pax_task_size = TASK_SIZE;
19242 +
19243 +#ifdef CONFIG_PAX_SEGMEXEC
19244 + if (mm->pax_flags & MF_PAX_SEGMEXEC)
19245 + pax_task_size = SEGMEXEC_TASK_SIZE;
19246 +#endif
19247 +
19248 + pax_task_size -= PAGE_SIZE;
19249 +
19250 + /* requested length too big for entire address space */
19251 + if (len > pax_task_size)
19252 + return -ENOMEM;
19253 +
19254 + if (flags & MAP_FIXED)
19255 + return addr;
19256 +
19257 +#ifdef CONFIG_PAX_PAGEEXEC
19258 + if (!(__supported_pte_mask & _PAGE_NX) && (mm->pax_flags & MF_PAX_PAGEEXEC) && (flags & MAP_EXECUTABLE))
19259 + goto bottomup;
19260 +#endif
19261 +
19262 +#ifdef CONFIG_PAX_RANDMMAP
19263 + if (!(mm->pax_flags & MF_PAX_RANDMMAP))
19264 +#endif
19265 +
19266 + /* requesting a specific address */
19267 + if (addr) {
19268 + addr = PAGE_ALIGN(addr);
19269 + if (pax_task_size - len >= addr) {
19270 + vma = find_vma(mm, addr);
19271 + if (check_heap_stack_gap(vma, addr, len))
19272 + return addr;
19273 + }
19274 + }
19275 +
19276 + /* check if free_area_cache is useful for us */
19277 + if (len <= mm->cached_hole_size) {
19278 + mm->cached_hole_size = 0;
19279 + mm->free_area_cache = mm->mmap_base;
19280 + }
19281 +
19282 + /* either no address requested or can't fit in requested address hole */
19283 + addr = mm->free_area_cache;
19284 +
19285 + /* make sure it can fit in the remaining address space */
19286 + if (addr > len) {
19287 + vma = find_vma(mm, addr-len);
19288 + if (check_heap_stack_gap(vma, addr - len, len))
19289 + /* remember the address as a hint for next time */
19290 + return (mm->free_area_cache = addr-len);
19291 + }
19292 +
19293 + if (mm->mmap_base < len)
19294 + goto bottomup;
19295 +
19296 + addr = mm->mmap_base-len;
19297 +
19298 + do {
19299 + /*
19300 + * Lookup failure means no vma is above this address,
19301 + * else if new region fits below vma->vm_start,
19302 + * return with success:
19303 + */
19304 + vma = find_vma(mm, addr);
19305 + if (check_heap_stack_gap(vma, addr, len))
19306 + /* remember the address as a hint for next time */
19307 + return (mm->free_area_cache = addr);
19308 +
19309 + /* remember the largest hole we saw so far */
19310 + if (addr + mm->cached_hole_size < vma->vm_start)
19311 + mm->cached_hole_size = vma->vm_start - addr;
19312 +
19313 + /* try just below the current vma->vm_start */
19314 + addr = skip_heap_stack_gap(vma, len);
19315 + } while (!IS_ERR_VALUE(addr));
19316 +
19317 +bottomup:
19318 + /*
19319 + * A failed mmap() very likely causes application failure,
19320 + * so fall back to the bottom-up function here. This scenario
19321 + * can happen with large stack limits and large mmap()
19322 + * allocations.
19323 + */
19324 +
19325 +#ifdef CONFIG_PAX_SEGMEXEC
19326 + if (mm->pax_flags & MF_PAX_SEGMEXEC)
19327 + mm->mmap_base = SEGMEXEC_TASK_UNMAPPED_BASE;
19328 + else
19329 +#endif
19330 +
19331 + mm->mmap_base = TASK_UNMAPPED_BASE;
19332 +
19333 +#ifdef CONFIG_PAX_RANDMMAP
19334 + if (mm->pax_flags & MF_PAX_RANDMMAP)
19335 + mm->mmap_base += mm->delta_mmap;
19336 +#endif
19337 +
19338 + mm->free_area_cache = mm->mmap_base;
19339 + mm->cached_hole_size = ~0UL;
19340 + addr = arch_get_unmapped_area(filp, addr0, len, pgoff, flags);
19341 + /*
19342 + * Restore the topdown base:
19343 + */
19344 + mm->mmap_base = base;
19345 + mm->free_area_cache = base;
19346 + mm->cached_hole_size = ~0UL;
19347 +
19348 + return addr;
19349 }
19350 diff --git a/arch/x86/kernel/sys_x86_64.c b/arch/x86/kernel/sys_x86_64.c
19351 index b4d3c39..82bb73b 100644
19352 --- a/arch/x86/kernel/sys_x86_64.c
19353 +++ b/arch/x86/kernel/sys_x86_64.c
19354 @@ -95,8 +95,8 @@ out:
19355 return error;
19356 }
19357
19358 -static void find_start_end(unsigned long flags, unsigned long *begin,
19359 - unsigned long *end)
19360 +static void find_start_end(struct mm_struct *mm, unsigned long flags,
19361 + unsigned long *begin, unsigned long *end)
19362 {
19363 if (!test_thread_flag(TIF_ADDR32) && (flags & MAP_32BIT)) {
19364 unsigned long new_begin;
19365 @@ -115,7 +115,7 @@ static void find_start_end(unsigned long flags, unsigned long *begin,
19366 *begin = new_begin;
19367 }
19368 } else {
19369 - *begin = TASK_UNMAPPED_BASE;
19370 + *begin = mm->mmap_base;
19371 *end = TASK_SIZE;
19372 }
19373 }
19374 @@ -132,16 +132,19 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
19375 if (flags & MAP_FIXED)
19376 return addr;
19377
19378 - find_start_end(flags, &begin, &end);
19379 + find_start_end(mm, flags, &begin, &end);
19380
19381 if (len > end)
19382 return -ENOMEM;
19383
19384 +#ifdef CONFIG_PAX_RANDMMAP
19385 + if (!(mm->pax_flags & MF_PAX_RANDMMAP))
19386 +#endif
19387 +
19388 if (addr) {
19389 addr = PAGE_ALIGN(addr);
19390 vma = find_vma(mm, addr);
19391 - if (end - len >= addr &&
19392 - (!vma || addr + len <= vma->vm_start))
19393 + if (end - len >= addr && check_heap_stack_gap(vma, addr, len))
19394 return addr;
19395 }
19396 if (((flags & MAP_32BIT) || test_thread_flag(TIF_ADDR32))
19397 @@ -172,7 +175,7 @@ full_search:
19398 }
19399 return -ENOMEM;
19400 }
19401 - if (!vma || addr + len <= vma->vm_start) {
19402 + if (check_heap_stack_gap(vma, addr, len)) {
19403 /*
19404 * Remember the place where we stopped the search:
19405 */
19406 @@ -195,7 +198,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
19407 {
19408 struct vm_area_struct *vma;
19409 struct mm_struct *mm = current->mm;
19410 - unsigned long addr = addr0, start_addr;
19411 + unsigned long base = mm->mmap_base, addr = addr0, start_addr;
19412
19413 /* requested length too big for entire address space */
19414 if (len > TASK_SIZE)
19415 @@ -208,13 +211,18 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
19416 if (!test_thread_flag(TIF_ADDR32) && (flags & MAP_32BIT))
19417 goto bottomup;
19418
19419 +#ifdef CONFIG_PAX_RANDMMAP
19420 + if (!(mm->pax_flags & MF_PAX_RANDMMAP))
19421 +#endif
19422 +
19423 /* requesting a specific address */
19424 if (addr) {
19425 addr = PAGE_ALIGN(addr);
19426 - vma = find_vma(mm, addr);
19427 - if (TASK_SIZE - len >= addr &&
19428 - (!vma || addr + len <= vma->vm_start))
19429 - return addr;
19430 + if (TASK_SIZE - len >= addr) {
19431 + vma = find_vma(mm, addr);
19432 + if (check_heap_stack_gap(vma, addr, len))
19433 + return addr;
19434 + }
19435 }
19436
19437 /* check if free_area_cache is useful for us */
19438 @@ -240,7 +248,7 @@ try_again:
19439 * return with success:
19440 */
19441 vma = find_vma(mm, addr);
19442 - if (!vma || addr+len <= vma->vm_start)
19443 + if (check_heap_stack_gap(vma, addr, len))
19444 /* remember the address as a hint for next time */
19445 return mm->free_area_cache = addr;
19446
19447 @@ -249,8 +257,8 @@ try_again:
19448 mm->cached_hole_size = vma->vm_start - addr;
19449
19450 /* try just below the current vma->vm_start */
19451 - addr = vma->vm_start-len;
19452 - } while (len < vma->vm_start);
19453 + addr = skip_heap_stack_gap(vma, len);
19454 + } while (!IS_ERR_VALUE(addr));
19455
19456 fail:
19457 /*
19458 @@ -270,13 +278,21 @@ bottomup:
19459 * can happen with large stack limits and large mmap()
19460 * allocations.
19461 */
19462 + mm->mmap_base = TASK_UNMAPPED_BASE;
19463 +
19464 +#ifdef CONFIG_PAX_RANDMMAP
19465 + if (mm->pax_flags & MF_PAX_RANDMMAP)
19466 + mm->mmap_base += mm->delta_mmap;
19467 +#endif
19468 +
19469 + mm->free_area_cache = mm->mmap_base;
19470 mm->cached_hole_size = ~0UL;
19471 - mm->free_area_cache = TASK_UNMAPPED_BASE;
19472 addr = arch_get_unmapped_area(filp, addr0, len, pgoff, flags);
19473 /*
19474 * Restore the topdown base:
19475 */
19476 - mm->free_area_cache = mm->mmap_base;
19477 + mm->mmap_base = base;
19478 + mm->free_area_cache = base;
19479 mm->cached_hole_size = ~0UL;
19480
19481 return addr;
19482 diff --git a/arch/x86/kernel/tboot.c b/arch/x86/kernel/tboot.c
19483 index f84fe00..93fe08f 100644
19484 --- a/arch/x86/kernel/tboot.c
19485 +++ b/arch/x86/kernel/tboot.c
19486 @@ -220,7 +220,7 @@ static int tboot_setup_sleep(void)
19487
19488 void tboot_shutdown(u32 shutdown_type)
19489 {
19490 - void (*shutdown)(void);
19491 + void (* __noreturn shutdown)(void);
19492
19493 if (!tboot_enabled())
19494 return;
19495 @@ -242,7 +242,7 @@ void tboot_shutdown(u32 shutdown_type)
19496
19497 switch_to_tboot_pt();
19498
19499 - shutdown = (void(*)(void))(unsigned long)tboot->shutdown_entry;
19500 + shutdown = (void *)tboot->shutdown_entry;
19501 shutdown();
19502
19503 /* should not reach here */
19504 @@ -300,7 +300,7 @@ static int tboot_sleep(u8 sleep_state, u32 pm1a_control, u32 pm1b_control)
19505 return 0;
19506 }
19507
19508 -static atomic_t ap_wfs_count;
19509 +static atomic_unchecked_t ap_wfs_count;
19510
19511 static int tboot_wait_for_aps(int num_aps)
19512 {
19513 @@ -324,9 +324,9 @@ static int __cpuinit tboot_cpu_callback(struct notifier_block *nfb,
19514 {
19515 switch (action) {
19516 case CPU_DYING:
19517 - atomic_inc(&ap_wfs_count);
19518 + atomic_inc_unchecked(&ap_wfs_count);
19519 if (num_online_cpus() == 1)
19520 - if (tboot_wait_for_aps(atomic_read(&ap_wfs_count)))
19521 + if (tboot_wait_for_aps(atomic_read_unchecked(&ap_wfs_count)))
19522 return NOTIFY_BAD;
19523 break;
19524 }
19525 @@ -345,7 +345,7 @@ static __init int tboot_late_init(void)
19526
19527 tboot_create_trampoline();
19528
19529 - atomic_set(&ap_wfs_count, 0);
19530 + atomic_set_unchecked(&ap_wfs_count, 0);
19531 register_hotcpu_notifier(&tboot_cpu_notifier);
19532
19533 acpi_os_set_prepare_sleep(&tboot_sleep);
19534 diff --git a/arch/x86/kernel/time.c b/arch/x86/kernel/time.c
19535 index 24d3c91..d06b473 100644
19536 --- a/arch/x86/kernel/time.c
19537 +++ b/arch/x86/kernel/time.c
19538 @@ -30,9 +30,9 @@ unsigned long profile_pc(struct pt_regs *regs)
19539 {
19540 unsigned long pc = instruction_pointer(regs);
19541
19542 - if (!user_mode_vm(regs) && in_lock_functions(pc)) {
19543 + if (!user_mode(regs) && in_lock_functions(pc)) {
19544 #ifdef CONFIG_FRAME_POINTER
19545 - return *(unsigned long *)(regs->bp + sizeof(long));
19546 + return ktla_ktva(*(unsigned long *)(regs->bp + sizeof(long)));
19547 #else
19548 unsigned long *sp =
19549 (unsigned long *)kernel_stack_pointer(regs);
19550 @@ -41,11 +41,17 @@ unsigned long profile_pc(struct pt_regs *regs)
19551 * or above a saved flags. Eflags has bits 22-31 zero,
19552 * kernel addresses don't.
19553 */
19554 +
19555 +#ifdef CONFIG_PAX_KERNEXEC
19556 + return ktla_ktva(sp[0]);
19557 +#else
19558 if (sp[0] >> 22)
19559 return sp[0];
19560 if (sp[1] >> 22)
19561 return sp[1];
19562 #endif
19563 +
19564 +#endif
19565 }
19566 return pc;
19567 }
19568 diff --git a/arch/x86/kernel/tls.c b/arch/x86/kernel/tls.c
19569 index 9d9d2f9..ed344e4 100644
19570 --- a/arch/x86/kernel/tls.c
19571 +++ b/arch/x86/kernel/tls.c
19572 @@ -84,6 +84,11 @@ int do_set_thread_area(struct task_struct *p, int idx,
19573 if (idx < GDT_ENTRY_TLS_MIN || idx > GDT_ENTRY_TLS_MAX)
19574 return -EINVAL;
19575
19576 +#ifdef CONFIG_PAX_SEGMEXEC
19577 + if ((p->mm->pax_flags & MF_PAX_SEGMEXEC) && (info.contents & MODIFY_LDT_CONTENTS_CODE))
19578 + return -EINVAL;
19579 +#endif
19580 +
19581 set_tls_desc(p, idx, &info, 1);
19582
19583 return 0;
19584 diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
19585 index 05b31d9..501d3ba 100644
19586 --- a/arch/x86/kernel/traps.c
19587 +++ b/arch/x86/kernel/traps.c
19588 @@ -67,12 +67,6 @@ asmlinkage int system_call(void);
19589
19590 /* Do we ignore FPU interrupts ? */
19591 char ignore_fpu_irq;
19592 -
19593 -/*
19594 - * The IDT has to be page-aligned to simplify the Pentium
19595 - * F0 0F bug workaround.
19596 - */
19597 -gate_desc idt_table[NR_VECTORS] __page_aligned_data = { { { { 0, 0 } } }, };
19598 #endif
19599
19600 DECLARE_BITMAP(used_vectors, NR_VECTORS);
19601 @@ -105,13 +99,13 @@ static inline void preempt_conditional_cli(struct pt_regs *regs)
19602 }
19603
19604 static void __kprobes
19605 -do_trap(int trapnr, int signr, char *str, struct pt_regs *regs,
19606 +do_trap(int trapnr, int signr, const char *str, struct pt_regs *regs,
19607 long error_code, siginfo_t *info)
19608 {
19609 struct task_struct *tsk = current;
19610
19611 #ifdef CONFIG_X86_32
19612 - if (regs->flags & X86_VM_MASK) {
19613 + if (v8086_mode(regs)) {
19614 /*
19615 * traps 0, 1, 3, 4, and 5 should be forwarded to vm86.
19616 * On nmi (interrupt 2), do_trap should not be called.
19617 @@ -122,7 +116,7 @@ do_trap(int trapnr, int signr, char *str, struct pt_regs *regs,
19618 }
19619 #endif
19620
19621 - if (!user_mode(regs))
19622 + if (!user_mode_novm(regs))
19623 goto kernel_trap;
19624
19625 #ifdef CONFIG_X86_32
19626 @@ -145,7 +139,7 @@ trap_signal:
19627 printk_ratelimit()) {
19628 printk(KERN_INFO
19629 "%s[%d] trap %s ip:%lx sp:%lx error:%lx",
19630 - tsk->comm, tsk->pid, str,
19631 + tsk->comm, task_pid_nr(tsk), str,
19632 regs->ip, regs->sp, error_code);
19633 print_vma_addr(" in ", regs->ip);
19634 printk("\n");
19635 @@ -162,8 +156,20 @@ kernel_trap:
19636 if (!fixup_exception(regs)) {
19637 tsk->thread.error_code = error_code;
19638 tsk->thread.trap_nr = trapnr;
19639 +
19640 +#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
19641 + if (trapnr == 12 && ((regs->cs & 0xFFFF) == __KERNEL_CS || (regs->cs & 0xFFFF) == __KERNEXEC_KERNEL_CS))
19642 + str = "PAX: suspicious stack segment fault";
19643 +#endif
19644 +
19645 die(str, regs, error_code);
19646 }
19647 +
19648 +#ifdef CONFIG_PAX_REFCOUNT
19649 + if (trapnr == 4)
19650 + pax_report_refcount_overflow(regs);
19651 +#endif
19652 +
19653 return;
19654
19655 #ifdef CONFIG_X86_32
19656 @@ -256,14 +262,30 @@ do_general_protection(struct pt_regs *regs, long error_code)
19657 conditional_sti(regs);
19658
19659 #ifdef CONFIG_X86_32
19660 - if (regs->flags & X86_VM_MASK)
19661 + if (v8086_mode(regs))
19662 goto gp_in_vm86;
19663 #endif
19664
19665 tsk = current;
19666 - if (!user_mode(regs))
19667 + if (!user_mode_novm(regs))
19668 goto gp_in_kernel;
19669
19670 +#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_PAGEEXEC)
19671 + if (!(__supported_pte_mask & _PAGE_NX) && tsk->mm && (tsk->mm->pax_flags & MF_PAX_PAGEEXEC)) {
19672 + struct mm_struct *mm = tsk->mm;
19673 + unsigned long limit;
19674 +
19675 + down_write(&mm->mmap_sem);
19676 + limit = mm->context.user_cs_limit;
19677 + if (limit < TASK_SIZE) {
19678 + track_exec_limit(mm, limit, TASK_SIZE, VM_EXEC);
19679 + up_write(&mm->mmap_sem);
19680 + return;
19681 + }
19682 + up_write(&mm->mmap_sem);
19683 + }
19684 +#endif
19685 +
19686 tsk->thread.error_code = error_code;
19687 tsk->thread.trap_nr = X86_TRAP_GP;
19688
19689 @@ -296,6 +318,13 @@ gp_in_kernel:
19690 if (notify_die(DIE_GPF, "general protection fault", regs, error_code,
19691 X86_TRAP_GP, SIGSEGV) == NOTIFY_STOP)
19692 return;
19693 +
19694 +#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
19695 + if ((regs->cs & 0xFFFF) == __KERNEL_CS || (regs->cs & 0xFFFF) == __KERNEXEC_KERNEL_CS)
19696 + die("PAX: suspicious general protection fault", regs, error_code);
19697 + else
19698 +#endif
19699 +
19700 die("general protection fault", regs, error_code);
19701 }
19702
19703 @@ -431,7 +460,7 @@ dotraplinkage void __kprobes do_debug(struct pt_regs *regs, long error_code)
19704 /* It's safe to allow irq's after DR6 has been saved */
19705 preempt_conditional_sti(regs);
19706
19707 - if (regs->flags & X86_VM_MASK) {
19708 + if (v8086_mode(regs)) {
19709 handle_vm86_trap((struct kernel_vm86_regs *) regs, error_code,
19710 X86_TRAP_DB);
19711 preempt_conditional_cli(regs);
19712 @@ -446,7 +475,7 @@ dotraplinkage void __kprobes do_debug(struct pt_regs *regs, long error_code)
19713 * We already checked v86 mode above, so we can check for kernel mode
19714 * by just checking the CPL of CS.
19715 */
19716 - if ((dr6 & DR_STEP) && !user_mode(regs)) {
19717 + if ((dr6 & DR_STEP) && !user_mode_novm(regs)) {
19718 tsk->thread.debugreg6 &= ~DR_STEP;
19719 set_tsk_thread_flag(tsk, TIF_SINGLESTEP);
19720 regs->flags &= ~X86_EFLAGS_TF;
19721 @@ -477,7 +506,7 @@ void math_error(struct pt_regs *regs, int error_code, int trapnr)
19722 return;
19723 conditional_sti(regs);
19724
19725 - if (!user_mode_vm(regs))
19726 + if (!user_mode(regs))
19727 {
19728 if (!fixup_exception(regs)) {
19729 task->thread.error_code = error_code;
19730 diff --git a/arch/x86/kernel/uprobes.c b/arch/x86/kernel/uprobes.c
19731 index dc4e910..c9dedab 100644
19732 --- a/arch/x86/kernel/uprobes.c
19733 +++ b/arch/x86/kernel/uprobes.c
19734 @@ -606,7 +606,7 @@ int arch_uprobe_exception_notify(struct notifier_block *self, unsigned long val,
19735 int ret = NOTIFY_DONE;
19736
19737 /* We are only interested in userspace traps */
19738 - if (regs && !user_mode_vm(regs))
19739 + if (regs && !user_mode(regs))
19740 return NOTIFY_DONE;
19741
19742 switch (val) {
19743 diff --git a/arch/x86/kernel/verify_cpu.S b/arch/x86/kernel/verify_cpu.S
19744 index b9242ba..50c5edd 100644
19745 --- a/arch/x86/kernel/verify_cpu.S
19746 +++ b/arch/x86/kernel/verify_cpu.S
19747 @@ -20,6 +20,7 @@
19748 * arch/x86/boot/compressed/head_64.S: Boot cpu verification
19749 * arch/x86/kernel/trampoline_64.S: secondary processor verification
19750 * arch/x86/kernel/head_32.S: processor startup
19751 + * arch/x86/kernel/acpi/realmode/wakeup.S: 32bit processor resume
19752 *
19753 * verify_cpu, returns the status of longmode and SSE in register %eax.
19754 * 0: Success 1: Failure
19755 diff --git a/arch/x86/kernel/vm86_32.c b/arch/x86/kernel/vm86_32.c
19756 index 255f58a..5e91150 100644
19757 --- a/arch/x86/kernel/vm86_32.c
19758 +++ b/arch/x86/kernel/vm86_32.c
19759 @@ -41,6 +41,7 @@
19760 #include <linux/ptrace.h>
19761 #include <linux/audit.h>
19762 #include <linux/stddef.h>
19763 +#include <linux/grsecurity.h>
19764
19765 #include <asm/uaccess.h>
19766 #include <asm/io.h>
19767 @@ -148,7 +149,7 @@ struct pt_regs *save_v86_state(struct kernel_vm86_regs *regs)
19768 do_exit(SIGSEGV);
19769 }
19770
19771 - tss = &per_cpu(init_tss, get_cpu());
19772 + tss = init_tss + get_cpu();
19773 current->thread.sp0 = current->thread.saved_sp0;
19774 current->thread.sysenter_cs = __KERNEL_CS;
19775 load_sp0(tss, &current->thread);
19776 @@ -210,6 +211,13 @@ int sys_vm86old(struct vm86_struct __user *v86, struct pt_regs *regs)
19777 struct task_struct *tsk;
19778 int tmp, ret = -EPERM;
19779
19780 +#ifdef CONFIG_GRKERNSEC_VM86
19781 + if (!capable(CAP_SYS_RAWIO)) {
19782 + gr_handle_vm86();
19783 + goto out;
19784 + }
19785 +#endif
19786 +
19787 tsk = current;
19788 if (tsk->thread.saved_sp0)
19789 goto out;
19790 @@ -240,6 +248,14 @@ int sys_vm86(unsigned long cmd, unsigned long arg, struct pt_regs *regs)
19791 int tmp, ret;
19792 struct vm86plus_struct __user *v86;
19793
19794 +#ifdef CONFIG_GRKERNSEC_VM86
19795 + if (!capable(CAP_SYS_RAWIO)) {
19796 + gr_handle_vm86();
19797 + ret = -EPERM;
19798 + goto out;
19799 + }
19800 +#endif
19801 +
19802 tsk = current;
19803 switch (cmd) {
19804 case VM86_REQUEST_IRQ:
19805 @@ -326,7 +342,7 @@ static void do_sys_vm86(struct kernel_vm86_struct *info, struct task_struct *tsk
19806 tsk->thread.saved_fs = info->regs32->fs;
19807 tsk->thread.saved_gs = get_user_gs(info->regs32);
19808
19809 - tss = &per_cpu(init_tss, get_cpu());
19810 + tss = init_tss + get_cpu();
19811 tsk->thread.sp0 = (unsigned long) &info->VM86_TSS_ESP0;
19812 if (cpu_has_sep)
19813 tsk->thread.sysenter_cs = 0;
19814 @@ -533,7 +549,7 @@ static void do_int(struct kernel_vm86_regs *regs, int i,
19815 goto cannot_handle;
19816 if (i == 0x21 && is_revectored(AH(regs), &KVM86->int21_revectored))
19817 goto cannot_handle;
19818 - intr_ptr = (unsigned long __user *) (i << 2);
19819 + intr_ptr = (__force unsigned long __user *) (i << 2);
19820 if (get_user(segoffs, intr_ptr))
19821 goto cannot_handle;
19822 if ((segoffs >> 16) == BIOSSEG)
19823 diff --git a/arch/x86/kernel/vmlinux.lds.S b/arch/x86/kernel/vmlinux.lds.S
19824 index 22a1530..8fbaaad 100644
19825 --- a/arch/x86/kernel/vmlinux.lds.S
19826 +++ b/arch/x86/kernel/vmlinux.lds.S
19827 @@ -26,6 +26,13 @@
19828 #include <asm/page_types.h>
19829 #include <asm/cache.h>
19830 #include <asm/boot.h>
19831 +#include <asm/segment.h>
19832 +
19833 +#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
19834 +#define __KERNEL_TEXT_OFFSET (LOAD_OFFSET + ____LOAD_PHYSICAL_ADDR)
19835 +#else
19836 +#define __KERNEL_TEXT_OFFSET 0
19837 +#endif
19838
19839 #undef i386 /* in case the preprocessor is a 32bit one */
19840
19841 @@ -69,30 +76,43 @@ jiffies_64 = jiffies;
19842
19843 PHDRS {
19844 text PT_LOAD FLAGS(5); /* R_E */
19845 +#ifdef CONFIG_X86_32
19846 + module PT_LOAD FLAGS(5); /* R_E */
19847 +#endif
19848 +#ifdef CONFIG_XEN
19849 + rodata PT_LOAD FLAGS(5); /* R_E */
19850 +#else
19851 + rodata PT_LOAD FLAGS(4); /* R__ */
19852 +#endif
19853 data PT_LOAD FLAGS(6); /* RW_ */
19854 -#ifdef CONFIG_X86_64
19855 + init.begin PT_LOAD FLAGS(6); /* RW_ */
19856 #ifdef CONFIG_SMP
19857 percpu PT_LOAD FLAGS(6); /* RW_ */
19858 #endif
19859 + text.init PT_LOAD FLAGS(5); /* R_E */
19860 + text.exit PT_LOAD FLAGS(5); /* R_E */
19861 init PT_LOAD FLAGS(7); /* RWE */
19862 -#endif
19863 note PT_NOTE FLAGS(0); /* ___ */
19864 }
19865
19866 SECTIONS
19867 {
19868 #ifdef CONFIG_X86_32
19869 - . = LOAD_OFFSET + LOAD_PHYSICAL_ADDR;
19870 - phys_startup_32 = startup_32 - LOAD_OFFSET;
19871 + . = LOAD_OFFSET + ____LOAD_PHYSICAL_ADDR;
19872 #else
19873 - . = __START_KERNEL;
19874 - phys_startup_64 = startup_64 - LOAD_OFFSET;
19875 + . = __START_KERNEL;
19876 #endif
19877
19878 /* Text and read-only data */
19879 - .text : AT(ADDR(.text) - LOAD_OFFSET) {
19880 - _text = .;
19881 + .text (. - __KERNEL_TEXT_OFFSET): AT(ADDR(.text) - LOAD_OFFSET + __KERNEL_TEXT_OFFSET) {
19882 /* bootstrapping code */
19883 +#ifdef CONFIG_X86_32
19884 + phys_startup_32 = startup_32 - LOAD_OFFSET + __KERNEL_TEXT_OFFSET;
19885 +#else
19886 + phys_startup_64 = startup_64 - LOAD_OFFSET + __KERNEL_TEXT_OFFSET;
19887 +#endif
19888 + __LOAD_PHYSICAL_ADDR = . - LOAD_OFFSET + __KERNEL_TEXT_OFFSET;
19889 + _text = .;
19890 HEAD_TEXT
19891 #ifdef CONFIG_X86_32
19892 . = ALIGN(PAGE_SIZE);
19893 @@ -108,13 +128,48 @@ SECTIONS
19894 IRQENTRY_TEXT
19895 *(.fixup)
19896 *(.gnu.warning)
19897 - /* End of text section */
19898 - _etext = .;
19899 } :text = 0x9090
19900
19901 - NOTES :text :note
19902 + . += __KERNEL_TEXT_OFFSET;
19903
19904 - EXCEPTION_TABLE(16) :text = 0x9090
19905 +#ifdef CONFIG_X86_32
19906 + . = ALIGN(PAGE_SIZE);
19907 + .module.text : AT(ADDR(.module.text) - LOAD_OFFSET) {
19908 +
19909 +#if defined(CONFIG_PAX_KERNEXEC) && defined(CONFIG_MODULES)
19910 + MODULES_EXEC_VADDR = .;
19911 + BYTE(0)
19912 + . += (CONFIG_PAX_KERNEXEC_MODULE_TEXT * 1024 * 1024);
19913 + . = ALIGN(HPAGE_SIZE) - 1;
19914 + MODULES_EXEC_END = .;
19915 +#endif
19916 +
19917 + } :module
19918 +#endif
19919 +
19920 + .text.end : AT(ADDR(.text.end) - LOAD_OFFSET) {
19921 + /* End of text section */
19922 + BYTE(0)
19923 + _etext = . - __KERNEL_TEXT_OFFSET;
19924 + }
19925 +
19926 +#ifdef CONFIG_X86_32
19927 + . = ALIGN(PAGE_SIZE);
19928 + .rodata.page_aligned : AT(ADDR(.rodata.page_aligned) - LOAD_OFFSET) {
19929 + *(.idt)
19930 + . = ALIGN(PAGE_SIZE);
19931 + *(.empty_zero_page)
19932 + *(.initial_pg_fixmap)
19933 + *(.initial_pg_pmd)
19934 + *(.initial_page_table)
19935 + *(.swapper_pg_dir)
19936 + } :rodata
19937 +#endif
19938 +
19939 + . = ALIGN(PAGE_SIZE);
19940 + NOTES :rodata :note
19941 +
19942 + EXCEPTION_TABLE(16) :rodata
19943
19944 #if defined(CONFIG_DEBUG_RODATA)
19945 /* .text should occupy whole number of pages */
19946 @@ -126,16 +181,20 @@ SECTIONS
19947
19948 /* Data */
19949 .data : AT(ADDR(.data) - LOAD_OFFSET) {
19950 +
19951 +#ifdef CONFIG_PAX_KERNEXEC
19952 + . = ALIGN(HPAGE_SIZE);
19953 +#else
19954 + . = ALIGN(PAGE_SIZE);
19955 +#endif
19956 +
19957 /* Start of data section */
19958 _sdata = .;
19959
19960 /* init_task */
19961 INIT_TASK_DATA(THREAD_SIZE)
19962
19963 -#ifdef CONFIG_X86_32
19964 - /* 32 bit has nosave before _edata */
19965 NOSAVE_DATA
19966 -#endif
19967
19968 PAGE_ALIGNED_DATA(PAGE_SIZE)
19969
19970 @@ -176,12 +235,19 @@ SECTIONS
19971 #endif /* CONFIG_X86_64 */
19972
19973 /* Init code and data - will be freed after init */
19974 - . = ALIGN(PAGE_SIZE);
19975 .init.begin : AT(ADDR(.init.begin) - LOAD_OFFSET) {
19976 + BYTE(0)
19977 +
19978 +#ifdef CONFIG_PAX_KERNEXEC
19979 + . = ALIGN(HPAGE_SIZE);
19980 +#else
19981 + . = ALIGN(PAGE_SIZE);
19982 +#endif
19983 +
19984 __init_begin = .; /* paired with __init_end */
19985 - }
19986 + } :init.begin
19987
19988 -#if defined(CONFIG_X86_64) && defined(CONFIG_SMP)
19989 +#ifdef CONFIG_SMP
19990 /*
19991 * percpu offsets are zero-based on SMP. PERCPU_VADDR() changes the
19992 * output PHDR, so the next output section - .init.text - should
19993 @@ -190,12 +256,27 @@ SECTIONS
19994 PERCPU_VADDR(INTERNODE_CACHE_BYTES, 0, :percpu)
19995 #endif
19996
19997 - INIT_TEXT_SECTION(PAGE_SIZE)
19998 -#ifdef CONFIG_X86_64
19999 - :init
20000 -#endif
20001 + . = ALIGN(PAGE_SIZE);
20002 + init_begin = .;
20003 + .init.text (. - __KERNEL_TEXT_OFFSET): AT(init_begin - LOAD_OFFSET) {
20004 + VMLINUX_SYMBOL(_sinittext) = .;
20005 + INIT_TEXT
20006 + VMLINUX_SYMBOL(_einittext) = .;
20007 + . = ALIGN(PAGE_SIZE);
20008 + } :text.init
20009
20010 - INIT_DATA_SECTION(16)
20011 + /*
20012 + * .exit.text is discard at runtime, not link time, to deal with
20013 + * references from .altinstructions and .eh_frame
20014 + */
20015 + .exit.text : AT(ADDR(.exit.text) - LOAD_OFFSET + __KERNEL_TEXT_OFFSET) {
20016 + EXIT_TEXT
20017 + . = ALIGN(16);
20018 + } :text.exit
20019 + . = init_begin + SIZEOF(.init.text) + SIZEOF(.exit.text);
20020 +
20021 + . = ALIGN(PAGE_SIZE);
20022 + INIT_DATA_SECTION(16) :init
20023
20024 .x86_cpu_dev.init : AT(ADDR(.x86_cpu_dev.init) - LOAD_OFFSET) {
20025 __x86_cpu_dev_start = .;
20026 @@ -257,19 +338,12 @@ SECTIONS
20027 }
20028
20029 . = ALIGN(8);
20030 - /*
20031 - * .exit.text is discard at runtime, not link time, to deal with
20032 - * references from .altinstructions and .eh_frame
20033 - */
20034 - .exit.text : AT(ADDR(.exit.text) - LOAD_OFFSET) {
20035 - EXIT_TEXT
20036 - }
20037
20038 .exit.data : AT(ADDR(.exit.data) - LOAD_OFFSET) {
20039 EXIT_DATA
20040 }
20041
20042 -#if !defined(CONFIG_X86_64) || !defined(CONFIG_SMP)
20043 +#ifndef CONFIG_SMP
20044 PERCPU_SECTION(INTERNODE_CACHE_BYTES)
20045 #endif
20046
20047 @@ -288,16 +362,10 @@ SECTIONS
20048 .smp_locks : AT(ADDR(.smp_locks) - LOAD_OFFSET) {
20049 __smp_locks = .;
20050 *(.smp_locks)
20051 - . = ALIGN(PAGE_SIZE);
20052 __smp_locks_end = .;
20053 + . = ALIGN(PAGE_SIZE);
20054 }
20055
20056 -#ifdef CONFIG_X86_64
20057 - .data_nosave : AT(ADDR(.data_nosave) - LOAD_OFFSET) {
20058 - NOSAVE_DATA
20059 - }
20060 -#endif
20061 -
20062 /* BSS */
20063 . = ALIGN(PAGE_SIZE);
20064 .bss : AT(ADDR(.bss) - LOAD_OFFSET) {
20065 @@ -313,6 +381,7 @@ SECTIONS
20066 __brk_base = .;
20067 . += 64 * 1024; /* 64k alignment slop space */
20068 *(.brk_reservation) /* areas brk users have reserved */
20069 + . = ALIGN(HPAGE_SIZE);
20070 __brk_limit = .;
20071 }
20072
20073 @@ -339,13 +408,12 @@ SECTIONS
20074 * for the boot processor.
20075 */
20076 #define INIT_PER_CPU(x) init_per_cpu__##x = x + __per_cpu_load
20077 -INIT_PER_CPU(gdt_page);
20078 INIT_PER_CPU(irq_stack_union);
20079
20080 /*
20081 * Build-time check on the image size:
20082 */
20083 -. = ASSERT((_end - _text <= KERNEL_IMAGE_SIZE),
20084 +. = ASSERT((_end - _text - __KERNEL_TEXT_OFFSET <= KERNEL_IMAGE_SIZE),
20085 "kernel image bigger than KERNEL_IMAGE_SIZE");
20086
20087 #ifdef CONFIG_SMP
20088 diff --git a/arch/x86/kernel/vsyscall_64.c b/arch/x86/kernel/vsyscall_64.c
20089 index 5db36ca..2938af9 100644
20090 --- a/arch/x86/kernel/vsyscall_64.c
20091 +++ b/arch/x86/kernel/vsyscall_64.c
20092 @@ -54,15 +54,13 @@
20093 DEFINE_VVAR(int, vgetcpu_mode);
20094 DEFINE_VVAR(struct vsyscall_gtod_data, vsyscall_gtod_data);
20095
20096 -static enum { EMULATE, NATIVE, NONE } vsyscall_mode = EMULATE;
20097 +static enum { EMULATE, NONE } vsyscall_mode = EMULATE;
20098
20099 static int __init vsyscall_setup(char *str)
20100 {
20101 if (str) {
20102 if (!strcmp("emulate", str))
20103 vsyscall_mode = EMULATE;
20104 - else if (!strcmp("native", str))
20105 - vsyscall_mode = NATIVE;
20106 else if (!strcmp("none", str))
20107 vsyscall_mode = NONE;
20108 else
20109 @@ -309,8 +307,7 @@ done:
20110 return true;
20111
20112 sigsegv:
20113 - force_sig(SIGSEGV, current);
20114 - return true;
20115 + do_group_exit(SIGKILL);
20116 }
20117
20118 /*
20119 @@ -363,10 +360,7 @@ void __init map_vsyscall(void)
20120 extern char __vvar_page;
20121 unsigned long physaddr_vvar_page = __pa_symbol(&__vvar_page);
20122
20123 - __set_fixmap(VSYSCALL_FIRST_PAGE, physaddr_vsyscall,
20124 - vsyscall_mode == NATIVE
20125 - ? PAGE_KERNEL_VSYSCALL
20126 - : PAGE_KERNEL_VVAR);
20127 + __set_fixmap(VSYSCALL_FIRST_PAGE, physaddr_vsyscall, PAGE_KERNEL_VVAR);
20128 BUILD_BUG_ON((unsigned long)__fix_to_virt(VSYSCALL_FIRST_PAGE) !=
20129 (unsigned long)VSYSCALL_START);
20130
20131 diff --git a/arch/x86/kernel/x8664_ksyms_64.c b/arch/x86/kernel/x8664_ksyms_64.c
20132 index 9796c2f..f686fbf 100644
20133 --- a/arch/x86/kernel/x8664_ksyms_64.c
20134 +++ b/arch/x86/kernel/x8664_ksyms_64.c
20135 @@ -29,8 +29,6 @@ EXPORT_SYMBOL(__put_user_8);
20136 EXPORT_SYMBOL(copy_user_generic_string);
20137 EXPORT_SYMBOL(copy_user_generic_unrolled);
20138 EXPORT_SYMBOL(__copy_user_nocache);
20139 -EXPORT_SYMBOL(_copy_from_user);
20140 -EXPORT_SYMBOL(_copy_to_user);
20141
20142 EXPORT_SYMBOL(copy_page);
20143 EXPORT_SYMBOL(clear_page);
20144 diff --git a/arch/x86/kernel/xsave.c b/arch/x86/kernel/xsave.c
20145 index bd18149..2ea0183 100644
20146 --- a/arch/x86/kernel/xsave.c
20147 +++ b/arch/x86/kernel/xsave.c
20148 @@ -129,7 +129,7 @@ int check_for_xstate(struct i387_fxsave_struct __user *buf,
20149 fx_sw_user->xstate_size > fx_sw_user->extended_size)
20150 return -EINVAL;
20151
20152 - err = __get_user(magic2, (__u32 *) (((void *)fpstate) +
20153 + err = __get_user(magic2, (__u32 __user *) (((void __user *)fpstate) +
20154 fx_sw_user->extended_size -
20155 FP_XSTATE_MAGIC2_SIZE));
20156 if (err)
20157 @@ -265,7 +265,7 @@ fx_only:
20158 * the other extended state.
20159 */
20160 xrstor_state(init_xstate_buf, pcntxt_mask & ~XSTATE_FPSSE);
20161 - return fxrstor_checking((__force struct i387_fxsave_struct *)buf);
20162 + return fxrstor_checking((struct i387_fxsave_struct __force_kernel *)buf);
20163 }
20164
20165 /*
20166 @@ -294,7 +294,7 @@ int restore_i387_xstate(void __user *buf)
20167 if (use_xsave())
20168 err = restore_user_xstate(buf);
20169 else
20170 - err = fxrstor_checking((__force struct i387_fxsave_struct *)
20171 + err = fxrstor_checking((struct i387_fxsave_struct __force_kernel *)
20172 buf);
20173 if (unlikely(err)) {
20174 /*
20175 diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c
20176 index 7df1c6d..9ea7c79 100644
20177 --- a/arch/x86/kvm/cpuid.c
20178 +++ b/arch/x86/kvm/cpuid.c
20179 @@ -124,15 +124,20 @@ int kvm_vcpu_ioctl_set_cpuid2(struct kvm_vcpu *vcpu,
20180 struct kvm_cpuid2 *cpuid,
20181 struct kvm_cpuid_entry2 __user *entries)
20182 {
20183 - int r;
20184 + int r, i;
20185
20186 r = -E2BIG;
20187 if (cpuid->nent > KVM_MAX_CPUID_ENTRIES)
20188 goto out;
20189 r = -EFAULT;
20190 - if (copy_from_user(&vcpu->arch.cpuid_entries, entries,
20191 - cpuid->nent * sizeof(struct kvm_cpuid_entry2)))
20192 + if (!access_ok(VERIFY_READ, entries, cpuid->nent * sizeof(struct kvm_cpuid_entry2)))
20193 goto out;
20194 + for (i = 0; i < cpuid->nent; ++i) {
20195 + struct kvm_cpuid_entry2 cpuid_entry;
20196 + if (__copy_from_user(&cpuid_entry, entries + i, sizeof(cpuid_entry)))
20197 + goto out;
20198 + vcpu->arch.cpuid_entries[i] = cpuid_entry;
20199 + }
20200 vcpu->arch.cpuid_nent = cpuid->nent;
20201 kvm_apic_set_version(vcpu);
20202 kvm_x86_ops->cpuid_update(vcpu);
20203 @@ -147,15 +152,19 @@ int kvm_vcpu_ioctl_get_cpuid2(struct kvm_vcpu *vcpu,
20204 struct kvm_cpuid2 *cpuid,
20205 struct kvm_cpuid_entry2 __user *entries)
20206 {
20207 - int r;
20208 + int r, i;
20209
20210 r = -E2BIG;
20211 if (cpuid->nent < vcpu->arch.cpuid_nent)
20212 goto out;
20213 r = -EFAULT;
20214 - if (copy_to_user(entries, &vcpu->arch.cpuid_entries,
20215 - vcpu->arch.cpuid_nent * sizeof(struct kvm_cpuid_entry2)))
20216 + if (!access_ok(VERIFY_WRITE, entries, vcpu->arch.cpuid_nent * sizeof(struct kvm_cpuid_entry2)))
20217 goto out;
20218 + for (i = 0; i < vcpu->arch.cpuid_nent; ++i) {
20219 + struct kvm_cpuid_entry2 cpuid_entry = vcpu->arch.cpuid_entries[i];
20220 + if (__copy_to_user(entries + i, &cpuid_entry, sizeof(cpuid_entry)))
20221 + goto out;
20222 + }
20223 return 0;
20224
20225 out:
20226 diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
20227 index f95d242..3b49a90 100644
20228 --- a/arch/x86/kvm/emulate.c
20229 +++ b/arch/x86/kvm/emulate.c
20230 @@ -256,6 +256,7 @@ struct gprefix {
20231
20232 #define ____emulate_2op(ctxt, _op, _x, _y, _suffix, _dsttype) \
20233 do { \
20234 + unsigned long _tmp; \
20235 __asm__ __volatile__ ( \
20236 _PRE_EFLAGS("0", "4", "2") \
20237 _op _suffix " %"_x"3,%1; " \
20238 @@ -270,8 +271,6 @@ struct gprefix {
20239 /* Raw emulation: instruction has two explicit operands. */
20240 #define __emulate_2op_nobyte(ctxt,_op,_wx,_wy,_lx,_ly,_qx,_qy) \
20241 do { \
20242 - unsigned long _tmp; \
20243 - \
20244 switch ((ctxt)->dst.bytes) { \
20245 case 2: \
20246 ____emulate_2op(ctxt,_op,_wx,_wy,"w",u16); \
20247 @@ -287,7 +286,6 @@ struct gprefix {
20248
20249 #define __emulate_2op(ctxt,_op,_bx,_by,_wx,_wy,_lx,_ly,_qx,_qy) \
20250 do { \
20251 - unsigned long _tmp; \
20252 switch ((ctxt)->dst.bytes) { \
20253 case 1: \
20254 ____emulate_2op(ctxt,_op,_bx,_by,"b",u8); \
20255 diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
20256 index 93c1574..d6097dc 100644
20257 --- a/arch/x86/kvm/lapic.c
20258 +++ b/arch/x86/kvm/lapic.c
20259 @@ -54,7 +54,7 @@
20260 #define APIC_BUS_CYCLE_NS 1
20261
20262 /* #define apic_debug(fmt,arg...) printk(KERN_WARNING fmt,##arg) */
20263 -#define apic_debug(fmt, arg...)
20264 +#define apic_debug(fmt, arg...) do {} while (0)
20265
20266 #define APIC_LVT_NUM 6
20267 /* 14 is the version for Xeon and Pentium 8.4.8*/
20268 diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/paging_tmpl.h
20269 index 34f9709..8eca2d5 100644
20270 --- a/arch/x86/kvm/paging_tmpl.h
20271 +++ b/arch/x86/kvm/paging_tmpl.h
20272 @@ -197,7 +197,7 @@ retry_walk:
20273 if (unlikely(kvm_is_error_hva(host_addr)))
20274 goto error;
20275
20276 - ptep_user = (pt_element_t __user *)((void *)host_addr + offset);
20277 + ptep_user = (pt_element_t __force_user *)((void *)host_addr + offset);
20278 if (unlikely(__copy_from_user(&pte, ptep_user, sizeof(pte))))
20279 goto error;
20280
20281 diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
20282 index f75af40..285b18f 100644
20283 --- a/arch/x86/kvm/svm.c
20284 +++ b/arch/x86/kvm/svm.c
20285 @@ -3516,7 +3516,11 @@ static void reload_tss(struct kvm_vcpu *vcpu)
20286 int cpu = raw_smp_processor_id();
20287
20288 struct svm_cpu_data *sd = per_cpu(svm_data, cpu);
20289 +
20290 + pax_open_kernel();
20291 sd->tss_desc->type = 9; /* available 32/64-bit TSS */
20292 + pax_close_kernel();
20293 +
20294 load_TR_desc();
20295 }
20296
20297 @@ -3894,6 +3898,10 @@ static void svm_vcpu_run(struct kvm_vcpu *vcpu)
20298 #endif
20299 #endif
20300
20301 +#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_MEMORY_UDEREF)
20302 + __set_fs(current_thread_info()->addr_limit);
20303 +#endif
20304 +
20305 reload_tss(vcpu);
20306
20307 local_irq_disable();
20308 diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
20309 index 32eb588..19c4fe3 100644
20310 --- a/arch/x86/kvm/vmx.c
20311 +++ b/arch/x86/kvm/vmx.c
20312 @@ -1313,7 +1313,11 @@ static void reload_tss(void)
20313 struct desc_struct *descs;
20314
20315 descs = (void *)gdt->address;
20316 +
20317 + pax_open_kernel();
20318 descs[GDT_ENTRY_TSS].type = 9; /* available TSS */
20319 + pax_close_kernel();
20320 +
20321 load_TR_desc();
20322 }
20323
20324 @@ -1475,8 +1479,8 @@ static void __vmx_load_host_state(struct vcpu_vmx *vmx)
20325 * The sysexit path does not restore ds/es, so we must set them to
20326 * a reasonable value ourselves.
20327 */
20328 - loadsegment(ds, __USER_DS);
20329 - loadsegment(es, __USER_DS);
20330 + loadsegment(ds, __KERNEL_DS);
20331 + loadsegment(es, __KERNEL_DS);
20332 #endif
20333 reload_tss();
20334 #ifdef CONFIG_X86_64
20335 @@ -2653,8 +2657,11 @@ static __init int hardware_setup(void)
20336 if (!cpu_has_vmx_flexpriority())
20337 flexpriority_enabled = 0;
20338
20339 - if (!cpu_has_vmx_tpr_shadow())
20340 - kvm_x86_ops->update_cr8_intercept = NULL;
20341 + if (!cpu_has_vmx_tpr_shadow()) {
20342 + pax_open_kernel();
20343 + *(void **)&kvm_x86_ops->update_cr8_intercept = NULL;
20344 + pax_close_kernel();
20345 + }
20346
20347 if (enable_ept && !cpu_has_vmx_ept_2m_page())
20348 kvm_disable_largepages();
20349 @@ -3680,7 +3687,7 @@ static void vmx_set_constant_host_state(void)
20350 vmcs_writel(HOST_IDTR_BASE, dt.address); /* 22.2.4 */
20351
20352 asm("mov $.Lkvm_vmx_return, %0" : "=r"(tmpl));
20353 - vmcs_writel(HOST_RIP, tmpl); /* 22.2.5 */
20354 + vmcs_writel(HOST_RIP, ktla_ktva(tmpl)); /* 22.2.5 */
20355
20356 rdmsr(MSR_IA32_SYSENTER_CS, low32, high32);
20357 vmcs_write32(HOST_IA32_SYSENTER_CS, low32);
20358 @@ -6218,6 +6225,12 @@ static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu)
20359 "jmp .Lkvm_vmx_return \n\t"
20360 ".Llaunched: " __ex(ASM_VMX_VMRESUME) "\n\t"
20361 ".Lkvm_vmx_return: "
20362 +
20363 +#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
20364 + "ljmp %[cs],$.Lkvm_vmx_return2\n\t"
20365 + ".Lkvm_vmx_return2: "
20366 +#endif
20367 +
20368 /* Save guest registers, load host registers, keep flags */
20369 "mov %0, %c[wordsize](%%"R"sp) \n\t"
20370 "pop %0 \n\t"
20371 @@ -6266,6 +6279,11 @@ static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu)
20372 #endif
20373 [cr2]"i"(offsetof(struct vcpu_vmx, vcpu.arch.cr2)),
20374 [wordsize]"i"(sizeof(ulong))
20375 +
20376 +#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
20377 + ,[cs]"i"(__KERNEL_CS)
20378 +#endif
20379 +
20380 : "cc", "memory"
20381 , R"ax", R"bx", R"di", R"si"
20382 #ifdef CONFIG_X86_64
20383 @@ -6294,6 +6312,16 @@ static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu)
20384 }
20385 }
20386
20387 + asm("mov %0, %%ds; mov %0, %%es; mov %0, %%ss" : : "r"(__KERNEL_DS));
20388 +
20389 +#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
20390 + loadsegment(fs, __KERNEL_PERCPU);
20391 +#endif
20392 +
20393 +#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_MEMORY_UDEREF)
20394 + __set_fs(current_thread_info()->addr_limit);
20395 +#endif
20396 +
20397 vmx->loaded_vmcs->launched = 1;
20398
20399 vmx->exit_reason = vmcs_read32(VM_EXIT_REASON);
20400 diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
20401 index be6d549..b0ba2bf 100644
20402 --- a/arch/x86/kvm/x86.c
20403 +++ b/arch/x86/kvm/x86.c
20404 @@ -1357,8 +1357,8 @@ static int xen_hvm_config(struct kvm_vcpu *vcpu, u64 data)
20405 {
20406 struct kvm *kvm = vcpu->kvm;
20407 int lm = is_long_mode(vcpu);
20408 - u8 *blob_addr = lm ? (u8 *)(long)kvm->arch.xen_hvm_config.blob_addr_64
20409 - : (u8 *)(long)kvm->arch.xen_hvm_config.blob_addr_32;
20410 + u8 __user *blob_addr = lm ? (u8 __user *)(long)kvm->arch.xen_hvm_config.blob_addr_64
20411 + : (u8 __user *)(long)kvm->arch.xen_hvm_config.blob_addr_32;
20412 u8 blob_size = lm ? kvm->arch.xen_hvm_config.blob_size_64
20413 : kvm->arch.xen_hvm_config.blob_size_32;
20414 u32 page_num = data & ~PAGE_MASK;
20415 @@ -2214,6 +2214,8 @@ long kvm_arch_dev_ioctl(struct file *filp,
20416 if (n < msr_list.nmsrs)
20417 goto out;
20418 r = -EFAULT;
20419 + if (num_msrs_to_save > ARRAY_SIZE(msrs_to_save))
20420 + goto out;
20421 if (copy_to_user(user_msr_list->indices, &msrs_to_save,
20422 num_msrs_to_save * sizeof(u32)))
20423 goto out;
20424 @@ -2339,7 +2341,7 @@ static int kvm_vcpu_ioctl_set_lapic(struct kvm_vcpu *vcpu,
20425 static int kvm_vcpu_ioctl_interrupt(struct kvm_vcpu *vcpu,
20426 struct kvm_interrupt *irq)
20427 {
20428 - if (irq->irq < 0 || irq->irq >= 256)
20429 + if (irq->irq >= 256)
20430 return -EINVAL;
20431 if (irqchip_in_kernel(vcpu->kvm))
20432 return -ENXIO;
20433 @@ -4876,7 +4878,7 @@ static void kvm_set_mmio_spte_mask(void)
20434 kvm_mmu_set_mmio_spte_mask(mask);
20435 }
20436
20437 -int kvm_arch_init(void *opaque)
20438 +int kvm_arch_init(const void *opaque)
20439 {
20440 int r;
20441 struct kvm_x86_ops *ops = (struct kvm_x86_ops *)opaque;
20442 diff --git a/arch/x86/lguest/boot.c b/arch/x86/lguest/boot.c
20443 index 642d880..44e0f3f 100644
20444 --- a/arch/x86/lguest/boot.c
20445 +++ b/arch/x86/lguest/boot.c
20446 @@ -1200,9 +1200,10 @@ static __init int early_put_chars(u32 vtermno, const char *buf, int count)
20447 * Rebooting also tells the Host we're finished, but the RESTART flag tells the
20448 * Launcher to reboot us.
20449 */
20450 -static void lguest_restart(char *reason)
20451 +static __noreturn void lguest_restart(char *reason)
20452 {
20453 hcall(LHCALL_SHUTDOWN, __pa(reason), LGUEST_SHUTDOWN_RESTART, 0, 0);
20454 + BUG();
20455 }
20456
20457 /*G:050
20458 diff --git a/arch/x86/lib/atomic64_386_32.S b/arch/x86/lib/atomic64_386_32.S
20459 index 00933d5..3a64af9 100644
20460 --- a/arch/x86/lib/atomic64_386_32.S
20461 +++ b/arch/x86/lib/atomic64_386_32.S
20462 @@ -48,6 +48,10 @@ BEGIN(read)
20463 movl (v), %eax
20464 movl 4(v), %edx
20465 RET_ENDP
20466 +BEGIN(read_unchecked)
20467 + movl (v), %eax
20468 + movl 4(v), %edx
20469 +RET_ENDP
20470 #undef v
20471
20472 #define v %esi
20473 @@ -55,6 +59,10 @@ BEGIN(set)
20474 movl %ebx, (v)
20475 movl %ecx, 4(v)
20476 RET_ENDP
20477 +BEGIN(set_unchecked)
20478 + movl %ebx, (v)
20479 + movl %ecx, 4(v)
20480 +RET_ENDP
20481 #undef v
20482
20483 #define v %esi
20484 @@ -70,6 +78,20 @@ RET_ENDP
20485 BEGIN(add)
20486 addl %eax, (v)
20487 adcl %edx, 4(v)
20488 +
20489 +#ifdef CONFIG_PAX_REFCOUNT
20490 + jno 0f
20491 + subl %eax, (v)
20492 + sbbl %edx, 4(v)
20493 + int $4
20494 +0:
20495 + _ASM_EXTABLE(0b, 0b)
20496 +#endif
20497 +
20498 +RET_ENDP
20499 +BEGIN(add_unchecked)
20500 + addl %eax, (v)
20501 + adcl %edx, 4(v)
20502 RET_ENDP
20503 #undef v
20504
20505 @@ -77,6 +99,24 @@ RET_ENDP
20506 BEGIN(add_return)
20507 addl (v), %eax
20508 adcl 4(v), %edx
20509 +
20510 +#ifdef CONFIG_PAX_REFCOUNT
20511 + into
20512 +1234:
20513 + _ASM_EXTABLE(1234b, 2f)
20514 +#endif
20515 +
20516 + movl %eax, (v)
20517 + movl %edx, 4(v)
20518 +
20519 +#ifdef CONFIG_PAX_REFCOUNT
20520 +2:
20521 +#endif
20522 +
20523 +RET_ENDP
20524 +BEGIN(add_return_unchecked)
20525 + addl (v), %eax
20526 + adcl 4(v), %edx
20527 movl %eax, (v)
20528 movl %edx, 4(v)
20529 RET_ENDP
20530 @@ -86,6 +126,20 @@ RET_ENDP
20531 BEGIN(sub)
20532 subl %eax, (v)
20533 sbbl %edx, 4(v)
20534 +
20535 +#ifdef CONFIG_PAX_REFCOUNT
20536 + jno 0f
20537 + addl %eax, (v)
20538 + adcl %edx, 4(v)
20539 + int $4
20540 +0:
20541 + _ASM_EXTABLE(0b, 0b)
20542 +#endif
20543 +
20544 +RET_ENDP
20545 +BEGIN(sub_unchecked)
20546 + subl %eax, (v)
20547 + sbbl %edx, 4(v)
20548 RET_ENDP
20549 #undef v
20550
20551 @@ -96,6 +150,27 @@ BEGIN(sub_return)
20552 sbbl $0, %edx
20553 addl (v), %eax
20554 adcl 4(v), %edx
20555 +
20556 +#ifdef CONFIG_PAX_REFCOUNT
20557 + into
20558 +1234:
20559 + _ASM_EXTABLE(1234b, 2f)
20560 +#endif
20561 +
20562 + movl %eax, (v)
20563 + movl %edx, 4(v)
20564 +
20565 +#ifdef CONFIG_PAX_REFCOUNT
20566 +2:
20567 +#endif
20568 +
20569 +RET_ENDP
20570 +BEGIN(sub_return_unchecked)
20571 + negl %edx
20572 + negl %eax
20573 + sbbl $0, %edx
20574 + addl (v), %eax
20575 + adcl 4(v), %edx
20576 movl %eax, (v)
20577 movl %edx, 4(v)
20578 RET_ENDP
20579 @@ -105,6 +180,20 @@ RET_ENDP
20580 BEGIN(inc)
20581 addl $1, (v)
20582 adcl $0, 4(v)
20583 +
20584 +#ifdef CONFIG_PAX_REFCOUNT
20585 + jno 0f
20586 + subl $1, (v)
20587 + sbbl $0, 4(v)
20588 + int $4
20589 +0:
20590 + _ASM_EXTABLE(0b, 0b)
20591 +#endif
20592 +
20593 +RET_ENDP
20594 +BEGIN(inc_unchecked)
20595 + addl $1, (v)
20596 + adcl $0, 4(v)
20597 RET_ENDP
20598 #undef v
20599
20600 @@ -114,6 +203,26 @@ BEGIN(inc_return)
20601 movl 4(v), %edx
20602 addl $1, %eax
20603 adcl $0, %edx
20604 +
20605 +#ifdef CONFIG_PAX_REFCOUNT
20606 + into
20607 +1234:
20608 + _ASM_EXTABLE(1234b, 2f)
20609 +#endif
20610 +
20611 + movl %eax, (v)
20612 + movl %edx, 4(v)
20613 +
20614 +#ifdef CONFIG_PAX_REFCOUNT
20615 +2:
20616 +#endif
20617 +
20618 +RET_ENDP
20619 +BEGIN(inc_return_unchecked)
20620 + movl (v), %eax
20621 + movl 4(v), %edx
20622 + addl $1, %eax
20623 + adcl $0, %edx
20624 movl %eax, (v)
20625 movl %edx, 4(v)
20626 RET_ENDP
20627 @@ -123,6 +232,20 @@ RET_ENDP
20628 BEGIN(dec)
20629 subl $1, (v)
20630 sbbl $0, 4(v)
20631 +
20632 +#ifdef CONFIG_PAX_REFCOUNT
20633 + jno 0f
20634 + addl $1, (v)
20635 + adcl $0, 4(v)
20636 + int $4
20637 +0:
20638 + _ASM_EXTABLE(0b, 0b)
20639 +#endif
20640 +
20641 +RET_ENDP
20642 +BEGIN(dec_unchecked)
20643 + subl $1, (v)
20644 + sbbl $0, 4(v)
20645 RET_ENDP
20646 #undef v
20647
20648 @@ -132,6 +255,26 @@ BEGIN(dec_return)
20649 movl 4(v), %edx
20650 subl $1, %eax
20651 sbbl $0, %edx
20652 +
20653 +#ifdef CONFIG_PAX_REFCOUNT
20654 + into
20655 +1234:
20656 + _ASM_EXTABLE(1234b, 2f)
20657 +#endif
20658 +
20659 + movl %eax, (v)
20660 + movl %edx, 4(v)
20661 +
20662 +#ifdef CONFIG_PAX_REFCOUNT
20663 +2:
20664 +#endif
20665 +
20666 +RET_ENDP
20667 +BEGIN(dec_return_unchecked)
20668 + movl (v), %eax
20669 + movl 4(v), %edx
20670 + subl $1, %eax
20671 + sbbl $0, %edx
20672 movl %eax, (v)
20673 movl %edx, 4(v)
20674 RET_ENDP
20675 @@ -143,6 +286,13 @@ BEGIN(add_unless)
20676 adcl %edx, %edi
20677 addl (v), %eax
20678 adcl 4(v), %edx
20679 +
20680 +#ifdef CONFIG_PAX_REFCOUNT
20681 + into
20682 +1234:
20683 + _ASM_EXTABLE(1234b, 2f)
20684 +#endif
20685 +
20686 cmpl %eax, %ecx
20687 je 3f
20688 1:
20689 @@ -168,6 +318,13 @@ BEGIN(inc_not_zero)
20690 1:
20691 addl $1, %eax
20692 adcl $0, %edx
20693 +
20694 +#ifdef CONFIG_PAX_REFCOUNT
20695 + into
20696 +1234:
20697 + _ASM_EXTABLE(1234b, 2f)
20698 +#endif
20699 +
20700 movl %eax, (v)
20701 movl %edx, 4(v)
20702 movl $1, %eax
20703 @@ -186,6 +343,13 @@ BEGIN(dec_if_positive)
20704 movl 4(v), %edx
20705 subl $1, %eax
20706 sbbl $0, %edx
20707 +
20708 +#ifdef CONFIG_PAX_REFCOUNT
20709 + into
20710 +1234:
20711 + _ASM_EXTABLE(1234b, 1f)
20712 +#endif
20713 +
20714 js 1f
20715 movl %eax, (v)
20716 movl %edx, 4(v)
20717 diff --git a/arch/x86/lib/atomic64_cx8_32.S b/arch/x86/lib/atomic64_cx8_32.S
20718 index f5cc9eb..51fa319 100644
20719 --- a/arch/x86/lib/atomic64_cx8_32.S
20720 +++ b/arch/x86/lib/atomic64_cx8_32.S
20721 @@ -35,10 +35,20 @@ ENTRY(atomic64_read_cx8)
20722 CFI_STARTPROC
20723
20724 read64 %ecx
20725 + pax_force_retaddr
20726 ret
20727 CFI_ENDPROC
20728 ENDPROC(atomic64_read_cx8)
20729
20730 +ENTRY(atomic64_read_unchecked_cx8)
20731 + CFI_STARTPROC
20732 +
20733 + read64 %ecx
20734 + pax_force_retaddr
20735 + ret
20736 + CFI_ENDPROC
20737 +ENDPROC(atomic64_read_unchecked_cx8)
20738 +
20739 ENTRY(atomic64_set_cx8)
20740 CFI_STARTPROC
20741
20742 @@ -48,10 +58,25 @@ ENTRY(atomic64_set_cx8)
20743 cmpxchg8b (%esi)
20744 jne 1b
20745
20746 + pax_force_retaddr
20747 ret
20748 CFI_ENDPROC
20749 ENDPROC(atomic64_set_cx8)
20750
20751 +ENTRY(atomic64_set_unchecked_cx8)
20752 + CFI_STARTPROC
20753 +
20754 +1:
20755 +/* we don't need LOCK_PREFIX since aligned 64-bit writes
20756 + * are atomic on 586 and newer */
20757 + cmpxchg8b (%esi)
20758 + jne 1b
20759 +
20760 + pax_force_retaddr
20761 + ret
20762 + CFI_ENDPROC
20763 +ENDPROC(atomic64_set_unchecked_cx8)
20764 +
20765 ENTRY(atomic64_xchg_cx8)
20766 CFI_STARTPROC
20767
20768 @@ -60,12 +85,13 @@ ENTRY(atomic64_xchg_cx8)
20769 cmpxchg8b (%esi)
20770 jne 1b
20771
20772 + pax_force_retaddr
20773 ret
20774 CFI_ENDPROC
20775 ENDPROC(atomic64_xchg_cx8)
20776
20777 -.macro addsub_return func ins insc
20778 -ENTRY(atomic64_\func\()_return_cx8)
20779 +.macro addsub_return func ins insc unchecked=""
20780 +ENTRY(atomic64_\func\()_return\unchecked\()_cx8)
20781 CFI_STARTPROC
20782 SAVE ebp
20783 SAVE ebx
20784 @@ -82,27 +108,44 @@ ENTRY(atomic64_\func\()_return_cx8)
20785 movl %edx, %ecx
20786 \ins\()l %esi, %ebx
20787 \insc\()l %edi, %ecx
20788 +
20789 +.ifb \unchecked
20790 +#ifdef CONFIG_PAX_REFCOUNT
20791 + into
20792 +2:
20793 + _ASM_EXTABLE(2b, 3f)
20794 +#endif
20795 +.endif
20796 +
20797 LOCK_PREFIX
20798 cmpxchg8b (%ebp)
20799 jne 1b
20800 -
20801 -10:
20802 movl %ebx, %eax
20803 movl %ecx, %edx
20804 +
20805 +.ifb \unchecked
20806 +#ifdef CONFIG_PAX_REFCOUNT
20807 +3:
20808 +#endif
20809 +.endif
20810 +
20811 RESTORE edi
20812 RESTORE esi
20813 RESTORE ebx
20814 RESTORE ebp
20815 + pax_force_retaddr
20816 ret
20817 CFI_ENDPROC
20818 -ENDPROC(atomic64_\func\()_return_cx8)
20819 +ENDPROC(atomic64_\func\()_return\unchecked\()_cx8)
20820 .endm
20821
20822 addsub_return add add adc
20823 addsub_return sub sub sbb
20824 +addsub_return add add adc _unchecked
20825 +addsub_return sub sub sbb _unchecked
20826
20827 -.macro incdec_return func ins insc
20828 -ENTRY(atomic64_\func\()_return_cx8)
20829 +.macro incdec_return func ins insc unchecked=""
20830 +ENTRY(atomic64_\func\()_return\unchecked\()_cx8)
20831 CFI_STARTPROC
20832 SAVE ebx
20833
20834 @@ -112,21 +155,39 @@ ENTRY(atomic64_\func\()_return_cx8)
20835 movl %edx, %ecx
20836 \ins\()l $1, %ebx
20837 \insc\()l $0, %ecx
20838 +
20839 +.ifb \unchecked
20840 +#ifdef CONFIG_PAX_REFCOUNT
20841 + into
20842 +2:
20843 + _ASM_EXTABLE(2b, 3f)
20844 +#endif
20845 +.endif
20846 +
20847 LOCK_PREFIX
20848 cmpxchg8b (%esi)
20849 jne 1b
20850
20851 -10:
20852 movl %ebx, %eax
20853 movl %ecx, %edx
20854 +
20855 +.ifb \unchecked
20856 +#ifdef CONFIG_PAX_REFCOUNT
20857 +3:
20858 +#endif
20859 +.endif
20860 +
20861 RESTORE ebx
20862 + pax_force_retaddr
20863 ret
20864 CFI_ENDPROC
20865 -ENDPROC(atomic64_\func\()_return_cx8)
20866 +ENDPROC(atomic64_\func\()_return\unchecked\()_cx8)
20867 .endm
20868
20869 incdec_return inc add adc
20870 incdec_return dec sub sbb
20871 +incdec_return inc add adc _unchecked
20872 +incdec_return dec sub sbb _unchecked
20873
20874 ENTRY(atomic64_dec_if_positive_cx8)
20875 CFI_STARTPROC
20876 @@ -138,6 +199,13 @@ ENTRY(atomic64_dec_if_positive_cx8)
20877 movl %edx, %ecx
20878 subl $1, %ebx
20879 sbb $0, %ecx
20880 +
20881 +#ifdef CONFIG_PAX_REFCOUNT
20882 + into
20883 +1234:
20884 + _ASM_EXTABLE(1234b, 2f)
20885 +#endif
20886 +
20887 js 2f
20888 LOCK_PREFIX
20889 cmpxchg8b (%esi)
20890 @@ -147,6 +215,7 @@ ENTRY(atomic64_dec_if_positive_cx8)
20891 movl %ebx, %eax
20892 movl %ecx, %edx
20893 RESTORE ebx
20894 + pax_force_retaddr
20895 ret
20896 CFI_ENDPROC
20897 ENDPROC(atomic64_dec_if_positive_cx8)
20898 @@ -171,6 +240,13 @@ ENTRY(atomic64_add_unless_cx8)
20899 movl %edx, %ecx
20900 addl %ebp, %ebx
20901 adcl %edi, %ecx
20902 +
20903 +#ifdef CONFIG_PAX_REFCOUNT
20904 + into
20905 +1234:
20906 + _ASM_EXTABLE(1234b, 3f)
20907 +#endif
20908 +
20909 LOCK_PREFIX
20910 cmpxchg8b (%esi)
20911 jne 1b
20912 @@ -181,6 +257,7 @@ ENTRY(atomic64_add_unless_cx8)
20913 CFI_ADJUST_CFA_OFFSET -8
20914 RESTORE ebx
20915 RESTORE ebp
20916 + pax_force_retaddr
20917 ret
20918 4:
20919 cmpl %edx, 4(%esp)
20920 @@ -203,6 +280,13 @@ ENTRY(atomic64_inc_not_zero_cx8)
20921 xorl %ecx, %ecx
20922 addl $1, %ebx
20923 adcl %edx, %ecx
20924 +
20925 +#ifdef CONFIG_PAX_REFCOUNT
20926 + into
20927 +1234:
20928 + _ASM_EXTABLE(1234b, 3f)
20929 +#endif
20930 +
20931 LOCK_PREFIX
20932 cmpxchg8b (%esi)
20933 jne 1b
20934 @@ -210,6 +294,7 @@ ENTRY(atomic64_inc_not_zero_cx8)
20935 movl $1, %eax
20936 3:
20937 RESTORE ebx
20938 + pax_force_retaddr
20939 ret
20940 CFI_ENDPROC
20941 ENDPROC(atomic64_inc_not_zero_cx8)
20942 diff --git a/arch/x86/lib/checksum_32.S b/arch/x86/lib/checksum_32.S
20943 index 2af5df3..62b1a5a 100644
20944 --- a/arch/x86/lib/checksum_32.S
20945 +++ b/arch/x86/lib/checksum_32.S
20946 @@ -29,7 +29,8 @@
20947 #include <asm/dwarf2.h>
20948 #include <asm/errno.h>
20949 #include <asm/asm.h>
20950 -
20951 +#include <asm/segment.h>
20952 +
20953 /*
20954 * computes a partial checksum, e.g. for TCP/UDP fragments
20955 */
20956 @@ -293,9 +294,24 @@ unsigned int csum_partial_copy_generic (const char *src, char *dst,
20957
20958 #define ARGBASE 16
20959 #define FP 12
20960 -
20961 -ENTRY(csum_partial_copy_generic)
20962 +
20963 +ENTRY(csum_partial_copy_generic_to_user)
20964 CFI_STARTPROC
20965 +
20966 +#ifdef CONFIG_PAX_MEMORY_UDEREF
20967 + pushl_cfi %gs
20968 + popl_cfi %es
20969 + jmp csum_partial_copy_generic
20970 +#endif
20971 +
20972 +ENTRY(csum_partial_copy_generic_from_user)
20973 +
20974 +#ifdef CONFIG_PAX_MEMORY_UDEREF
20975 + pushl_cfi %gs
20976 + popl_cfi %ds
20977 +#endif
20978 +
20979 +ENTRY(csum_partial_copy_generic)
20980 subl $4,%esp
20981 CFI_ADJUST_CFA_OFFSET 4
20982 pushl_cfi %edi
20983 @@ -317,7 +333,7 @@ ENTRY(csum_partial_copy_generic)
20984 jmp 4f
20985 SRC(1: movw (%esi), %bx )
20986 addl $2, %esi
20987 -DST( movw %bx, (%edi) )
20988 +DST( movw %bx, %es:(%edi) )
20989 addl $2, %edi
20990 addw %bx, %ax
20991 adcl $0, %eax
20992 @@ -329,30 +345,30 @@ DST( movw %bx, (%edi) )
20993 SRC(1: movl (%esi), %ebx )
20994 SRC( movl 4(%esi), %edx )
20995 adcl %ebx, %eax
20996 -DST( movl %ebx, (%edi) )
20997 +DST( movl %ebx, %es:(%edi) )
20998 adcl %edx, %eax
20999 -DST( movl %edx, 4(%edi) )
21000 +DST( movl %edx, %es:4(%edi) )
21001
21002 SRC( movl 8(%esi), %ebx )
21003 SRC( movl 12(%esi), %edx )
21004 adcl %ebx, %eax
21005 -DST( movl %ebx, 8(%edi) )
21006 +DST( movl %ebx, %es:8(%edi) )
21007 adcl %edx, %eax
21008 -DST( movl %edx, 12(%edi) )
21009 +DST( movl %edx, %es:12(%edi) )
21010
21011 SRC( movl 16(%esi), %ebx )
21012 SRC( movl 20(%esi), %edx )
21013 adcl %ebx, %eax
21014 -DST( movl %ebx, 16(%edi) )
21015 +DST( movl %ebx, %es:16(%edi) )
21016 adcl %edx, %eax
21017 -DST( movl %edx, 20(%edi) )
21018 +DST( movl %edx, %es:20(%edi) )
21019
21020 SRC( movl 24(%esi), %ebx )
21021 SRC( movl 28(%esi), %edx )
21022 adcl %ebx, %eax
21023 -DST( movl %ebx, 24(%edi) )
21024 +DST( movl %ebx, %es:24(%edi) )
21025 adcl %edx, %eax
21026 -DST( movl %edx, 28(%edi) )
21027 +DST( movl %edx, %es:28(%edi) )
21028
21029 lea 32(%esi), %esi
21030 lea 32(%edi), %edi
21031 @@ -366,7 +382,7 @@ DST( movl %edx, 28(%edi) )
21032 shrl $2, %edx # This clears CF
21033 SRC(3: movl (%esi), %ebx )
21034 adcl %ebx, %eax
21035 -DST( movl %ebx, (%edi) )
21036 +DST( movl %ebx, %es:(%edi) )
21037 lea 4(%esi), %esi
21038 lea 4(%edi), %edi
21039 dec %edx
21040 @@ -378,12 +394,12 @@ DST( movl %ebx, (%edi) )
21041 jb 5f
21042 SRC( movw (%esi), %cx )
21043 leal 2(%esi), %esi
21044 -DST( movw %cx, (%edi) )
21045 +DST( movw %cx, %es:(%edi) )
21046 leal 2(%edi), %edi
21047 je 6f
21048 shll $16,%ecx
21049 SRC(5: movb (%esi), %cl )
21050 -DST( movb %cl, (%edi) )
21051 +DST( movb %cl, %es:(%edi) )
21052 6: addl %ecx, %eax
21053 adcl $0, %eax
21054 7:
21055 @@ -394,7 +410,7 @@ DST( movb %cl, (%edi) )
21056
21057 6001:
21058 movl ARGBASE+20(%esp), %ebx # src_err_ptr
21059 - movl $-EFAULT, (%ebx)
21060 + movl $-EFAULT, %ss:(%ebx)
21061
21062 # zero the complete destination - computing the rest
21063 # is too much work
21064 @@ -407,11 +423,15 @@ DST( movb %cl, (%edi) )
21065
21066 6002:
21067 movl ARGBASE+24(%esp), %ebx # dst_err_ptr
21068 - movl $-EFAULT,(%ebx)
21069 + movl $-EFAULT,%ss:(%ebx)
21070 jmp 5000b
21071
21072 .previous
21073
21074 + pushl_cfi %ss
21075 + popl_cfi %ds
21076 + pushl_cfi %ss
21077 + popl_cfi %es
21078 popl_cfi %ebx
21079 CFI_RESTORE ebx
21080 popl_cfi %esi
21081 @@ -421,26 +441,43 @@ DST( movb %cl, (%edi) )
21082 popl_cfi %ecx # equivalent to addl $4,%esp
21083 ret
21084 CFI_ENDPROC
21085 -ENDPROC(csum_partial_copy_generic)
21086 +ENDPROC(csum_partial_copy_generic_to_user)
21087
21088 #else
21089
21090 /* Version for PentiumII/PPro */
21091
21092 #define ROUND1(x) \
21093 + nop; nop; nop; \
21094 SRC(movl x(%esi), %ebx ) ; \
21095 addl %ebx, %eax ; \
21096 - DST(movl %ebx, x(%edi) ) ;
21097 + DST(movl %ebx, %es:x(%edi)) ;
21098
21099 #define ROUND(x) \
21100 + nop; nop; nop; \
21101 SRC(movl x(%esi), %ebx ) ; \
21102 adcl %ebx, %eax ; \
21103 - DST(movl %ebx, x(%edi) ) ;
21104 + DST(movl %ebx, %es:x(%edi)) ;
21105
21106 #define ARGBASE 12
21107 -
21108 -ENTRY(csum_partial_copy_generic)
21109 +
21110 +ENTRY(csum_partial_copy_generic_to_user)
21111 CFI_STARTPROC
21112 +
21113 +#ifdef CONFIG_PAX_MEMORY_UDEREF
21114 + pushl_cfi %gs
21115 + popl_cfi %es
21116 + jmp csum_partial_copy_generic
21117 +#endif
21118 +
21119 +ENTRY(csum_partial_copy_generic_from_user)
21120 +
21121 +#ifdef CONFIG_PAX_MEMORY_UDEREF
21122 + pushl_cfi %gs
21123 + popl_cfi %ds
21124 +#endif
21125 +
21126 +ENTRY(csum_partial_copy_generic)
21127 pushl_cfi %ebx
21128 CFI_REL_OFFSET ebx, 0
21129 pushl_cfi %edi
21130 @@ -461,7 +498,7 @@ ENTRY(csum_partial_copy_generic)
21131 subl %ebx, %edi
21132 lea -1(%esi),%edx
21133 andl $-32,%edx
21134 - lea 3f(%ebx,%ebx), %ebx
21135 + lea 3f(%ebx,%ebx,2), %ebx
21136 testl %esi, %esi
21137 jmp *%ebx
21138 1: addl $64,%esi
21139 @@ -482,19 +519,19 @@ ENTRY(csum_partial_copy_generic)
21140 jb 5f
21141 SRC( movw (%esi), %dx )
21142 leal 2(%esi), %esi
21143 -DST( movw %dx, (%edi) )
21144 +DST( movw %dx, %es:(%edi) )
21145 leal 2(%edi), %edi
21146 je 6f
21147 shll $16,%edx
21148 5:
21149 SRC( movb (%esi), %dl )
21150 -DST( movb %dl, (%edi) )
21151 +DST( movb %dl, %es:(%edi) )
21152 6: addl %edx, %eax
21153 adcl $0, %eax
21154 7:
21155 .section .fixup, "ax"
21156 6001: movl ARGBASE+20(%esp), %ebx # src_err_ptr
21157 - movl $-EFAULT, (%ebx)
21158 + movl $-EFAULT, %ss:(%ebx)
21159 # zero the complete destination (computing the rest is too much work)
21160 movl ARGBASE+8(%esp),%edi # dst
21161 movl ARGBASE+12(%esp),%ecx # len
21162 @@ -502,10 +539,17 @@ DST( movb %dl, (%edi) )
21163 rep; stosb
21164 jmp 7b
21165 6002: movl ARGBASE+24(%esp), %ebx # dst_err_ptr
21166 - movl $-EFAULT, (%ebx)
21167 + movl $-EFAULT, %ss:(%ebx)
21168 jmp 7b
21169 .previous
21170
21171 +#ifdef CONFIG_PAX_MEMORY_UDEREF
21172 + pushl_cfi %ss
21173 + popl_cfi %ds
21174 + pushl_cfi %ss
21175 + popl_cfi %es
21176 +#endif
21177 +
21178 popl_cfi %esi
21179 CFI_RESTORE esi
21180 popl_cfi %edi
21181 @@ -514,7 +558,7 @@ DST( movb %dl, (%edi) )
21182 CFI_RESTORE ebx
21183 ret
21184 CFI_ENDPROC
21185 -ENDPROC(csum_partial_copy_generic)
21186 +ENDPROC(csum_partial_copy_generic_to_user)
21187
21188 #undef ROUND
21189 #undef ROUND1
21190 diff --git a/arch/x86/lib/clear_page_64.S b/arch/x86/lib/clear_page_64.S
21191 index f2145cf..cea889d 100644
21192 --- a/arch/x86/lib/clear_page_64.S
21193 +++ b/arch/x86/lib/clear_page_64.S
21194 @@ -11,6 +11,7 @@ ENTRY(clear_page_c)
21195 movl $4096/8,%ecx
21196 xorl %eax,%eax
21197 rep stosq
21198 + pax_force_retaddr
21199 ret
21200 CFI_ENDPROC
21201 ENDPROC(clear_page_c)
21202 @@ -20,6 +21,7 @@ ENTRY(clear_page_c_e)
21203 movl $4096,%ecx
21204 xorl %eax,%eax
21205 rep stosb
21206 + pax_force_retaddr
21207 ret
21208 CFI_ENDPROC
21209 ENDPROC(clear_page_c_e)
21210 @@ -43,6 +45,7 @@ ENTRY(clear_page)
21211 leaq 64(%rdi),%rdi
21212 jnz .Lloop
21213 nop
21214 + pax_force_retaddr
21215 ret
21216 CFI_ENDPROC
21217 .Lclear_page_end:
21218 @@ -58,7 +61,7 @@ ENDPROC(clear_page)
21219
21220 #include <asm/cpufeature.h>
21221
21222 - .section .altinstr_replacement,"ax"
21223 + .section .altinstr_replacement,"a"
21224 1: .byte 0xeb /* jmp <disp8> */
21225 .byte (clear_page_c - clear_page) - (2f - 1b) /* offset */
21226 2: .byte 0xeb /* jmp <disp8> */
21227 diff --git a/arch/x86/lib/cmpxchg16b_emu.S b/arch/x86/lib/cmpxchg16b_emu.S
21228 index 1e572c5..2a162cd 100644
21229 --- a/arch/x86/lib/cmpxchg16b_emu.S
21230 +++ b/arch/x86/lib/cmpxchg16b_emu.S
21231 @@ -53,11 +53,13 @@ this_cpu_cmpxchg16b_emu:
21232
21233 popf
21234 mov $1, %al
21235 + pax_force_retaddr
21236 ret
21237
21238 not_same:
21239 popf
21240 xor %al,%al
21241 + pax_force_retaddr
21242 ret
21243
21244 CFI_ENDPROC
21245 diff --git a/arch/x86/lib/copy_page_64.S b/arch/x86/lib/copy_page_64.S
21246 index 6b34d04..dccb07f 100644
21247 --- a/arch/x86/lib/copy_page_64.S
21248 +++ b/arch/x86/lib/copy_page_64.S
21249 @@ -9,6 +9,7 @@ copy_page_c:
21250 CFI_STARTPROC
21251 movl $4096/8,%ecx
21252 rep movsq
21253 + pax_force_retaddr
21254 ret
21255 CFI_ENDPROC
21256 ENDPROC(copy_page_c)
21257 @@ -20,12 +21,14 @@ ENDPROC(copy_page_c)
21258
21259 ENTRY(copy_page)
21260 CFI_STARTPROC
21261 - subq $2*8,%rsp
21262 - CFI_ADJUST_CFA_OFFSET 2*8
21263 + subq $3*8,%rsp
21264 + CFI_ADJUST_CFA_OFFSET 3*8
21265 movq %rbx,(%rsp)
21266 CFI_REL_OFFSET rbx, 0
21267 movq %r12,1*8(%rsp)
21268 CFI_REL_OFFSET r12, 1*8
21269 + movq %r13,2*8(%rsp)
21270 + CFI_REL_OFFSET r13, 2*8
21271
21272 movl $(4096/64)-5,%ecx
21273 .p2align 4
21274 @@ -37,7 +40,7 @@ ENTRY(copy_page)
21275 movq 16 (%rsi), %rdx
21276 movq 24 (%rsi), %r8
21277 movq 32 (%rsi), %r9
21278 - movq 40 (%rsi), %r10
21279 + movq 40 (%rsi), %r13
21280 movq 48 (%rsi), %r11
21281 movq 56 (%rsi), %r12
21282
21283 @@ -48,7 +51,7 @@ ENTRY(copy_page)
21284 movq %rdx, 16 (%rdi)
21285 movq %r8, 24 (%rdi)
21286 movq %r9, 32 (%rdi)
21287 - movq %r10, 40 (%rdi)
21288 + movq %r13, 40 (%rdi)
21289 movq %r11, 48 (%rdi)
21290 movq %r12, 56 (%rdi)
21291
21292 @@ -67,7 +70,7 @@ ENTRY(copy_page)
21293 movq 16 (%rsi), %rdx
21294 movq 24 (%rsi), %r8
21295 movq 32 (%rsi), %r9
21296 - movq 40 (%rsi), %r10
21297 + movq 40 (%rsi), %r13
21298 movq 48 (%rsi), %r11
21299 movq 56 (%rsi), %r12
21300
21301 @@ -76,7 +79,7 @@ ENTRY(copy_page)
21302 movq %rdx, 16 (%rdi)
21303 movq %r8, 24 (%rdi)
21304 movq %r9, 32 (%rdi)
21305 - movq %r10, 40 (%rdi)
21306 + movq %r13, 40 (%rdi)
21307 movq %r11, 48 (%rdi)
21308 movq %r12, 56 (%rdi)
21309
21310 @@ -89,8 +92,11 @@ ENTRY(copy_page)
21311 CFI_RESTORE rbx
21312 movq 1*8(%rsp),%r12
21313 CFI_RESTORE r12
21314 - addq $2*8,%rsp
21315 - CFI_ADJUST_CFA_OFFSET -2*8
21316 + movq 2*8(%rsp),%r13
21317 + CFI_RESTORE r13
21318 + addq $3*8,%rsp
21319 + CFI_ADJUST_CFA_OFFSET -3*8
21320 + pax_force_retaddr
21321 ret
21322 .Lcopy_page_end:
21323 CFI_ENDPROC
21324 @@ -101,7 +107,7 @@ ENDPROC(copy_page)
21325
21326 #include <asm/cpufeature.h>
21327
21328 - .section .altinstr_replacement,"ax"
21329 + .section .altinstr_replacement,"a"
21330 1: .byte 0xeb /* jmp <disp8> */
21331 .byte (copy_page_c - copy_page) - (2f - 1b) /* offset */
21332 2:
21333 diff --git a/arch/x86/lib/copy_user_64.S b/arch/x86/lib/copy_user_64.S
21334 index 5b2995f..78e7644 100644
21335 --- a/arch/x86/lib/copy_user_64.S
21336 +++ b/arch/x86/lib/copy_user_64.S
21337 @@ -17,6 +17,7 @@
21338 #include <asm/cpufeature.h>
21339 #include <asm/alternative-asm.h>
21340 #include <asm/asm.h>
21341 +#include <asm/pgtable.h>
21342
21343 /*
21344 * By placing feature2 after feature1 in altinstructions section, we logically
21345 @@ -30,7 +31,7 @@
21346 .byte 0xe9 /* 32bit jump */
21347 .long \orig-1f /* by default jump to orig */
21348 1:
21349 - .section .altinstr_replacement,"ax"
21350 + .section .altinstr_replacement,"a"
21351 2: .byte 0xe9 /* near jump with 32bit immediate */
21352 .long \alt1-1b /* offset */ /* or alternatively to alt1 */
21353 3: .byte 0xe9 /* near jump with 32bit immediate */
21354 @@ -69,47 +70,20 @@
21355 #endif
21356 .endm
21357
21358 -/* Standard copy_to_user with segment limit checking */
21359 -ENTRY(_copy_to_user)
21360 - CFI_STARTPROC
21361 - GET_THREAD_INFO(%rax)
21362 - movq %rdi,%rcx
21363 - addq %rdx,%rcx
21364 - jc bad_to_user
21365 - cmpq TI_addr_limit(%rax),%rcx
21366 - ja bad_to_user
21367 - ALTERNATIVE_JUMP X86_FEATURE_REP_GOOD,X86_FEATURE_ERMS, \
21368 - copy_user_generic_unrolled,copy_user_generic_string, \
21369 - copy_user_enhanced_fast_string
21370 - CFI_ENDPROC
21371 -ENDPROC(_copy_to_user)
21372 -
21373 -/* Standard copy_from_user with segment limit checking */
21374 -ENTRY(_copy_from_user)
21375 - CFI_STARTPROC
21376 - GET_THREAD_INFO(%rax)
21377 - movq %rsi,%rcx
21378 - addq %rdx,%rcx
21379 - jc bad_from_user
21380 - cmpq TI_addr_limit(%rax),%rcx
21381 - ja bad_from_user
21382 - ALTERNATIVE_JUMP X86_FEATURE_REP_GOOD,X86_FEATURE_ERMS, \
21383 - copy_user_generic_unrolled,copy_user_generic_string, \
21384 - copy_user_enhanced_fast_string
21385 - CFI_ENDPROC
21386 -ENDPROC(_copy_from_user)
21387 -
21388 .section .fixup,"ax"
21389 /* must zero dest */
21390 ENTRY(bad_from_user)
21391 bad_from_user:
21392 CFI_STARTPROC
21393 + testl %edx,%edx
21394 + js bad_to_user
21395 movl %edx,%ecx
21396 xorl %eax,%eax
21397 rep
21398 stosb
21399 bad_to_user:
21400 movl %edx,%eax
21401 + pax_force_retaddr
21402 ret
21403 CFI_ENDPROC
21404 ENDPROC(bad_from_user)
21405 @@ -139,19 +113,19 @@ ENTRY(copy_user_generic_unrolled)
21406 jz 17f
21407 1: movq (%rsi),%r8
21408 2: movq 1*8(%rsi),%r9
21409 -3: movq 2*8(%rsi),%r10
21410 +3: movq 2*8(%rsi),%rax
21411 4: movq 3*8(%rsi),%r11
21412 5: movq %r8,(%rdi)
21413 6: movq %r9,1*8(%rdi)
21414 -7: movq %r10,2*8(%rdi)
21415 +7: movq %rax,2*8(%rdi)
21416 8: movq %r11,3*8(%rdi)
21417 9: movq 4*8(%rsi),%r8
21418 10: movq 5*8(%rsi),%r9
21419 -11: movq 6*8(%rsi),%r10
21420 +11: movq 6*8(%rsi),%rax
21421 12: movq 7*8(%rsi),%r11
21422 13: movq %r8,4*8(%rdi)
21423 14: movq %r9,5*8(%rdi)
21424 -15: movq %r10,6*8(%rdi)
21425 +15: movq %rax,6*8(%rdi)
21426 16: movq %r11,7*8(%rdi)
21427 leaq 64(%rsi),%rsi
21428 leaq 64(%rdi),%rdi
21429 @@ -177,6 +151,7 @@ ENTRY(copy_user_generic_unrolled)
21430 decl %ecx
21431 jnz 21b
21432 23: xor %eax,%eax
21433 + pax_force_retaddr
21434 ret
21435
21436 .section .fixup,"ax"
21437 @@ -246,6 +221,7 @@ ENTRY(copy_user_generic_string)
21438 3: rep
21439 movsb
21440 4: xorl %eax,%eax
21441 + pax_force_retaddr
21442 ret
21443
21444 .section .fixup,"ax"
21445 @@ -279,6 +255,7 @@ ENTRY(copy_user_enhanced_fast_string)
21446 1: rep
21447 movsb
21448 2: xorl %eax,%eax
21449 + pax_force_retaddr
21450 ret
21451
21452 .section .fixup,"ax"
21453 diff --git a/arch/x86/lib/copy_user_nocache_64.S b/arch/x86/lib/copy_user_nocache_64.S
21454 index cacddc7..09d49e4 100644
21455 --- a/arch/x86/lib/copy_user_nocache_64.S
21456 +++ b/arch/x86/lib/copy_user_nocache_64.S
21457 @@ -8,6 +8,7 @@
21458
21459 #include <linux/linkage.h>
21460 #include <asm/dwarf2.h>
21461 +#include <asm/alternative-asm.h>
21462
21463 #define FIX_ALIGNMENT 1
21464
21465 @@ -15,6 +16,7 @@
21466 #include <asm/asm-offsets.h>
21467 #include <asm/thread_info.h>
21468 #include <asm/asm.h>
21469 +#include <asm/pgtable.h>
21470
21471 .macro ALIGN_DESTINATION
21472 #ifdef FIX_ALIGNMENT
21473 @@ -48,6 +50,15 @@
21474 */
21475 ENTRY(__copy_user_nocache)
21476 CFI_STARTPROC
21477 +
21478 +#ifdef CONFIG_PAX_MEMORY_UDEREF
21479 + mov $PAX_USER_SHADOW_BASE,%rcx
21480 + cmp %rcx,%rsi
21481 + jae 1f
21482 + add %rcx,%rsi
21483 +1:
21484 +#endif
21485 +
21486 cmpl $8,%edx
21487 jb 20f /* less then 8 bytes, go to byte copy loop */
21488 ALIGN_DESTINATION
21489 @@ -57,19 +68,19 @@ ENTRY(__copy_user_nocache)
21490 jz 17f
21491 1: movq (%rsi),%r8
21492 2: movq 1*8(%rsi),%r9
21493 -3: movq 2*8(%rsi),%r10
21494 +3: movq 2*8(%rsi),%rax
21495 4: movq 3*8(%rsi),%r11
21496 5: movnti %r8,(%rdi)
21497 6: movnti %r9,1*8(%rdi)
21498 -7: movnti %r10,2*8(%rdi)
21499 +7: movnti %rax,2*8(%rdi)
21500 8: movnti %r11,3*8(%rdi)
21501 9: movq 4*8(%rsi),%r8
21502 10: movq 5*8(%rsi),%r9
21503 -11: movq 6*8(%rsi),%r10
21504 +11: movq 6*8(%rsi),%rax
21505 12: movq 7*8(%rsi),%r11
21506 13: movnti %r8,4*8(%rdi)
21507 14: movnti %r9,5*8(%rdi)
21508 -15: movnti %r10,6*8(%rdi)
21509 +15: movnti %rax,6*8(%rdi)
21510 16: movnti %r11,7*8(%rdi)
21511 leaq 64(%rsi),%rsi
21512 leaq 64(%rdi),%rdi
21513 @@ -96,6 +107,7 @@ ENTRY(__copy_user_nocache)
21514 jnz 21b
21515 23: xorl %eax,%eax
21516 sfence
21517 + pax_force_retaddr
21518 ret
21519
21520 .section .fixup,"ax"
21521 diff --git a/arch/x86/lib/csum-copy_64.S b/arch/x86/lib/csum-copy_64.S
21522 index 2419d5f..953ee51 100644
21523 --- a/arch/x86/lib/csum-copy_64.S
21524 +++ b/arch/x86/lib/csum-copy_64.S
21525 @@ -9,6 +9,7 @@
21526 #include <asm/dwarf2.h>
21527 #include <asm/errno.h>
21528 #include <asm/asm.h>
21529 +#include <asm/alternative-asm.h>
21530
21531 /*
21532 * Checksum copy with exception handling.
21533 @@ -220,6 +221,7 @@ ENTRY(csum_partial_copy_generic)
21534 CFI_RESTORE rbp
21535 addq $7*8, %rsp
21536 CFI_ADJUST_CFA_OFFSET -7*8
21537 + pax_force_retaddr 0, 1
21538 ret
21539 CFI_RESTORE_STATE
21540
21541 diff --git a/arch/x86/lib/csum-wrappers_64.c b/arch/x86/lib/csum-wrappers_64.c
21542 index 25b7ae8..3b52ccd 100644
21543 --- a/arch/x86/lib/csum-wrappers_64.c
21544 +++ b/arch/x86/lib/csum-wrappers_64.c
21545 @@ -52,7 +52,13 @@ csum_partial_copy_from_user(const void __user *src, void *dst,
21546 len -= 2;
21547 }
21548 }
21549 - isum = csum_partial_copy_generic((__force const void *)src,
21550 +
21551 +#ifdef CONFIG_PAX_MEMORY_UDEREF
21552 + if ((unsigned long)src < PAX_USER_SHADOW_BASE)
21553 + src += PAX_USER_SHADOW_BASE;
21554 +#endif
21555 +
21556 + isum = csum_partial_copy_generic((const void __force_kernel *)src,
21557 dst, len, isum, errp, NULL);
21558 if (unlikely(*errp))
21559 goto out_err;
21560 @@ -105,7 +111,13 @@ csum_partial_copy_to_user(const void *src, void __user *dst,
21561 }
21562
21563 *errp = 0;
21564 - return csum_partial_copy_generic(src, (void __force *)dst,
21565 +
21566 +#ifdef CONFIG_PAX_MEMORY_UDEREF
21567 + if ((unsigned long)dst < PAX_USER_SHADOW_BASE)
21568 + dst += PAX_USER_SHADOW_BASE;
21569 +#endif
21570 +
21571 + return csum_partial_copy_generic(src, (void __force_kernel *)dst,
21572 len, isum, NULL, errp);
21573 }
21574 EXPORT_SYMBOL(csum_partial_copy_to_user);
21575 diff --git a/arch/x86/lib/getuser.S b/arch/x86/lib/getuser.S
21576 index b33b1fb..219f389 100644
21577 --- a/arch/x86/lib/getuser.S
21578 +++ b/arch/x86/lib/getuser.S
21579 @@ -33,15 +33,38 @@
21580 #include <asm/asm-offsets.h>
21581 #include <asm/thread_info.h>
21582 #include <asm/asm.h>
21583 +#include <asm/segment.h>
21584 +#include <asm/pgtable.h>
21585 +#include <asm/alternative-asm.h>
21586 +
21587 +#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_MEMORY_UDEREF)
21588 +#define __copyuser_seg gs;
21589 +#else
21590 +#define __copyuser_seg
21591 +#endif
21592
21593 .text
21594 ENTRY(__get_user_1)
21595 CFI_STARTPROC
21596 +
21597 +#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF)
21598 GET_THREAD_INFO(%_ASM_DX)
21599 cmp TI_addr_limit(%_ASM_DX),%_ASM_AX
21600 jae bad_get_user
21601 -1: movzb (%_ASM_AX),%edx
21602 +
21603 +#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
21604 + mov $PAX_USER_SHADOW_BASE,%_ASM_DX
21605 + cmp %_ASM_DX,%_ASM_AX
21606 + jae 1234f
21607 + add %_ASM_DX,%_ASM_AX
21608 +1234:
21609 +#endif
21610 +
21611 +#endif
21612 +
21613 +1: __copyuser_seg movzb (%_ASM_AX),%edx
21614 xor %eax,%eax
21615 + pax_force_retaddr
21616 ret
21617 CFI_ENDPROC
21618 ENDPROC(__get_user_1)
21619 @@ -49,12 +72,26 @@ ENDPROC(__get_user_1)
21620 ENTRY(__get_user_2)
21621 CFI_STARTPROC
21622 add $1,%_ASM_AX
21623 +
21624 +#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF)
21625 jc bad_get_user
21626 GET_THREAD_INFO(%_ASM_DX)
21627 cmp TI_addr_limit(%_ASM_DX),%_ASM_AX
21628 jae bad_get_user
21629 -2: movzwl -1(%_ASM_AX),%edx
21630 +
21631 +#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
21632 + mov $PAX_USER_SHADOW_BASE,%_ASM_DX
21633 + cmp %_ASM_DX,%_ASM_AX
21634 + jae 1234f
21635 + add %_ASM_DX,%_ASM_AX
21636 +1234:
21637 +#endif
21638 +
21639 +#endif
21640 +
21641 +2: __copyuser_seg movzwl -1(%_ASM_AX),%edx
21642 xor %eax,%eax
21643 + pax_force_retaddr
21644 ret
21645 CFI_ENDPROC
21646 ENDPROC(__get_user_2)
21647 @@ -62,12 +99,26 @@ ENDPROC(__get_user_2)
21648 ENTRY(__get_user_4)
21649 CFI_STARTPROC
21650 add $3,%_ASM_AX
21651 +
21652 +#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF)
21653 jc bad_get_user
21654 GET_THREAD_INFO(%_ASM_DX)
21655 cmp TI_addr_limit(%_ASM_DX),%_ASM_AX
21656 jae bad_get_user
21657 -3: mov -3(%_ASM_AX),%edx
21658 +
21659 +#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
21660 + mov $PAX_USER_SHADOW_BASE,%_ASM_DX
21661 + cmp %_ASM_DX,%_ASM_AX
21662 + jae 1234f
21663 + add %_ASM_DX,%_ASM_AX
21664 +1234:
21665 +#endif
21666 +
21667 +#endif
21668 +
21669 +3: __copyuser_seg mov -3(%_ASM_AX),%edx
21670 xor %eax,%eax
21671 + pax_force_retaddr
21672 ret
21673 CFI_ENDPROC
21674 ENDPROC(__get_user_4)
21675 @@ -80,8 +131,18 @@ ENTRY(__get_user_8)
21676 GET_THREAD_INFO(%_ASM_DX)
21677 cmp TI_addr_limit(%_ASM_DX),%_ASM_AX
21678 jae bad_get_user
21679 +
21680 +#ifdef CONFIG_PAX_MEMORY_UDEREF
21681 + mov $PAX_USER_SHADOW_BASE,%_ASM_DX
21682 + cmp %_ASM_DX,%_ASM_AX
21683 + jae 1234f
21684 + add %_ASM_DX,%_ASM_AX
21685 +1234:
21686 +#endif
21687 +
21688 4: movq -7(%_ASM_AX),%_ASM_DX
21689 xor %eax,%eax
21690 + pax_force_retaddr
21691 ret
21692 CFI_ENDPROC
21693 ENDPROC(__get_user_8)
21694 @@ -91,6 +152,7 @@ bad_get_user:
21695 CFI_STARTPROC
21696 xor %edx,%edx
21697 mov $(-EFAULT),%_ASM_AX
21698 + pax_force_retaddr
21699 ret
21700 CFI_ENDPROC
21701 END(bad_get_user)
21702 diff --git a/arch/x86/lib/insn.c b/arch/x86/lib/insn.c
21703 index b1e6c4b..21ae8fc 100644
21704 --- a/arch/x86/lib/insn.c
21705 +++ b/arch/x86/lib/insn.c
21706 @@ -21,6 +21,11 @@
21707 #include <linux/string.h>
21708 #include <asm/inat.h>
21709 #include <asm/insn.h>
21710 +#ifdef __KERNEL__
21711 +#include <asm/pgtable_types.h>
21712 +#else
21713 +#define ktla_ktva(addr) addr
21714 +#endif
21715
21716 /* Verify next sizeof(t) bytes can be on the same instruction */
21717 #define validate_next(t, insn, n) \
21718 @@ -49,8 +54,8 @@
21719 void insn_init(struct insn *insn, const void *kaddr, int x86_64)
21720 {
21721 memset(insn, 0, sizeof(*insn));
21722 - insn->kaddr = kaddr;
21723 - insn->next_byte = kaddr;
21724 + insn->kaddr = ktla_ktva(kaddr);
21725 + insn->next_byte = ktla_ktva(kaddr);
21726 insn->x86_64 = x86_64 ? 1 : 0;
21727 insn->opnd_bytes = 4;
21728 if (x86_64)
21729 diff --git a/arch/x86/lib/iomap_copy_64.S b/arch/x86/lib/iomap_copy_64.S
21730 index 05a95e7..326f2fa 100644
21731 --- a/arch/x86/lib/iomap_copy_64.S
21732 +++ b/arch/x86/lib/iomap_copy_64.S
21733 @@ -17,6 +17,7 @@
21734
21735 #include <linux/linkage.h>
21736 #include <asm/dwarf2.h>
21737 +#include <asm/alternative-asm.h>
21738
21739 /*
21740 * override generic version in lib/iomap_copy.c
21741 @@ -25,6 +26,7 @@ ENTRY(__iowrite32_copy)
21742 CFI_STARTPROC
21743 movl %edx,%ecx
21744 rep movsd
21745 + pax_force_retaddr
21746 ret
21747 CFI_ENDPROC
21748 ENDPROC(__iowrite32_copy)
21749 diff --git a/arch/x86/lib/memcpy_64.S b/arch/x86/lib/memcpy_64.S
21750 index 1c273be..da9cc0e 100644
21751 --- a/arch/x86/lib/memcpy_64.S
21752 +++ b/arch/x86/lib/memcpy_64.S
21753 @@ -33,6 +33,7 @@
21754 rep movsq
21755 movl %edx, %ecx
21756 rep movsb
21757 + pax_force_retaddr
21758 ret
21759 .Lmemcpy_e:
21760 .previous
21761 @@ -49,6 +50,7 @@
21762 movq %rdi, %rax
21763 movq %rdx, %rcx
21764 rep movsb
21765 + pax_force_retaddr
21766 ret
21767 .Lmemcpy_e_e:
21768 .previous
21769 @@ -76,13 +78,13 @@ ENTRY(memcpy)
21770 */
21771 movq 0*8(%rsi), %r8
21772 movq 1*8(%rsi), %r9
21773 - movq 2*8(%rsi), %r10
21774 + movq 2*8(%rsi), %rcx
21775 movq 3*8(%rsi), %r11
21776 leaq 4*8(%rsi), %rsi
21777
21778 movq %r8, 0*8(%rdi)
21779 movq %r9, 1*8(%rdi)
21780 - movq %r10, 2*8(%rdi)
21781 + movq %rcx, 2*8(%rdi)
21782 movq %r11, 3*8(%rdi)
21783 leaq 4*8(%rdi), %rdi
21784 jae .Lcopy_forward_loop
21785 @@ -105,12 +107,12 @@ ENTRY(memcpy)
21786 subq $0x20, %rdx
21787 movq -1*8(%rsi), %r8
21788 movq -2*8(%rsi), %r9
21789 - movq -3*8(%rsi), %r10
21790 + movq -3*8(%rsi), %rcx
21791 movq -4*8(%rsi), %r11
21792 leaq -4*8(%rsi), %rsi
21793 movq %r8, -1*8(%rdi)
21794 movq %r9, -2*8(%rdi)
21795 - movq %r10, -3*8(%rdi)
21796 + movq %rcx, -3*8(%rdi)
21797 movq %r11, -4*8(%rdi)
21798 leaq -4*8(%rdi), %rdi
21799 jae .Lcopy_backward_loop
21800 @@ -130,12 +132,13 @@ ENTRY(memcpy)
21801 */
21802 movq 0*8(%rsi), %r8
21803 movq 1*8(%rsi), %r9
21804 - movq -2*8(%rsi, %rdx), %r10
21805 + movq -2*8(%rsi, %rdx), %rcx
21806 movq -1*8(%rsi, %rdx), %r11
21807 movq %r8, 0*8(%rdi)
21808 movq %r9, 1*8(%rdi)
21809 - movq %r10, -2*8(%rdi, %rdx)
21810 + movq %rcx, -2*8(%rdi, %rdx)
21811 movq %r11, -1*8(%rdi, %rdx)
21812 + pax_force_retaddr
21813 retq
21814 .p2align 4
21815 .Lless_16bytes:
21816 @@ -148,6 +151,7 @@ ENTRY(memcpy)
21817 movq -1*8(%rsi, %rdx), %r9
21818 movq %r8, 0*8(%rdi)
21819 movq %r9, -1*8(%rdi, %rdx)
21820 + pax_force_retaddr
21821 retq
21822 .p2align 4
21823 .Lless_8bytes:
21824 @@ -161,6 +165,7 @@ ENTRY(memcpy)
21825 movl -4(%rsi, %rdx), %r8d
21826 movl %ecx, (%rdi)
21827 movl %r8d, -4(%rdi, %rdx)
21828 + pax_force_retaddr
21829 retq
21830 .p2align 4
21831 .Lless_3bytes:
21832 @@ -179,6 +184,7 @@ ENTRY(memcpy)
21833 movb %cl, (%rdi)
21834
21835 .Lend:
21836 + pax_force_retaddr
21837 retq
21838 CFI_ENDPROC
21839 ENDPROC(memcpy)
21840 diff --git a/arch/x86/lib/memmove_64.S b/arch/x86/lib/memmove_64.S
21841 index ee16461..c39c199 100644
21842 --- a/arch/x86/lib/memmove_64.S
21843 +++ b/arch/x86/lib/memmove_64.S
21844 @@ -61,13 +61,13 @@ ENTRY(memmove)
21845 5:
21846 sub $0x20, %rdx
21847 movq 0*8(%rsi), %r11
21848 - movq 1*8(%rsi), %r10
21849 + movq 1*8(%rsi), %rcx
21850 movq 2*8(%rsi), %r9
21851 movq 3*8(%rsi), %r8
21852 leaq 4*8(%rsi), %rsi
21853
21854 movq %r11, 0*8(%rdi)
21855 - movq %r10, 1*8(%rdi)
21856 + movq %rcx, 1*8(%rdi)
21857 movq %r9, 2*8(%rdi)
21858 movq %r8, 3*8(%rdi)
21859 leaq 4*8(%rdi), %rdi
21860 @@ -81,10 +81,10 @@ ENTRY(memmove)
21861 4:
21862 movq %rdx, %rcx
21863 movq -8(%rsi, %rdx), %r11
21864 - lea -8(%rdi, %rdx), %r10
21865 + lea -8(%rdi, %rdx), %r9
21866 shrq $3, %rcx
21867 rep movsq
21868 - movq %r11, (%r10)
21869 + movq %r11, (%r9)
21870 jmp 13f
21871 .Lmemmove_end_forward:
21872
21873 @@ -95,14 +95,14 @@ ENTRY(memmove)
21874 7:
21875 movq %rdx, %rcx
21876 movq (%rsi), %r11
21877 - movq %rdi, %r10
21878 + movq %rdi, %r9
21879 leaq -8(%rsi, %rdx), %rsi
21880 leaq -8(%rdi, %rdx), %rdi
21881 shrq $3, %rcx
21882 std
21883 rep movsq
21884 cld
21885 - movq %r11, (%r10)
21886 + movq %r11, (%r9)
21887 jmp 13f
21888
21889 /*
21890 @@ -127,13 +127,13 @@ ENTRY(memmove)
21891 8:
21892 subq $0x20, %rdx
21893 movq -1*8(%rsi), %r11
21894 - movq -2*8(%rsi), %r10
21895 + movq -2*8(%rsi), %rcx
21896 movq -3*8(%rsi), %r9
21897 movq -4*8(%rsi), %r8
21898 leaq -4*8(%rsi), %rsi
21899
21900 movq %r11, -1*8(%rdi)
21901 - movq %r10, -2*8(%rdi)
21902 + movq %rcx, -2*8(%rdi)
21903 movq %r9, -3*8(%rdi)
21904 movq %r8, -4*8(%rdi)
21905 leaq -4*8(%rdi), %rdi
21906 @@ -151,11 +151,11 @@ ENTRY(memmove)
21907 * Move data from 16 bytes to 31 bytes.
21908 */
21909 movq 0*8(%rsi), %r11
21910 - movq 1*8(%rsi), %r10
21911 + movq 1*8(%rsi), %rcx
21912 movq -2*8(%rsi, %rdx), %r9
21913 movq -1*8(%rsi, %rdx), %r8
21914 movq %r11, 0*8(%rdi)
21915 - movq %r10, 1*8(%rdi)
21916 + movq %rcx, 1*8(%rdi)
21917 movq %r9, -2*8(%rdi, %rdx)
21918 movq %r8, -1*8(%rdi, %rdx)
21919 jmp 13f
21920 @@ -167,9 +167,9 @@ ENTRY(memmove)
21921 * Move data from 8 bytes to 15 bytes.
21922 */
21923 movq 0*8(%rsi), %r11
21924 - movq -1*8(%rsi, %rdx), %r10
21925 + movq -1*8(%rsi, %rdx), %r9
21926 movq %r11, 0*8(%rdi)
21927 - movq %r10, -1*8(%rdi, %rdx)
21928 + movq %r9, -1*8(%rdi, %rdx)
21929 jmp 13f
21930 10:
21931 cmpq $4, %rdx
21932 @@ -178,9 +178,9 @@ ENTRY(memmove)
21933 * Move data from 4 bytes to 7 bytes.
21934 */
21935 movl (%rsi), %r11d
21936 - movl -4(%rsi, %rdx), %r10d
21937 + movl -4(%rsi, %rdx), %r9d
21938 movl %r11d, (%rdi)
21939 - movl %r10d, -4(%rdi, %rdx)
21940 + movl %r9d, -4(%rdi, %rdx)
21941 jmp 13f
21942 11:
21943 cmp $2, %rdx
21944 @@ -189,9 +189,9 @@ ENTRY(memmove)
21945 * Move data from 2 bytes to 3 bytes.
21946 */
21947 movw (%rsi), %r11w
21948 - movw -2(%rsi, %rdx), %r10w
21949 + movw -2(%rsi, %rdx), %r9w
21950 movw %r11w, (%rdi)
21951 - movw %r10w, -2(%rdi, %rdx)
21952 + movw %r9w, -2(%rdi, %rdx)
21953 jmp 13f
21954 12:
21955 cmp $1, %rdx
21956 @@ -202,6 +202,7 @@ ENTRY(memmove)
21957 movb (%rsi), %r11b
21958 movb %r11b, (%rdi)
21959 13:
21960 + pax_force_retaddr
21961 retq
21962 CFI_ENDPROC
21963
21964 @@ -210,6 +211,7 @@ ENTRY(memmove)
21965 /* Forward moving data. */
21966 movq %rdx, %rcx
21967 rep movsb
21968 + pax_force_retaddr
21969 retq
21970 .Lmemmove_end_forward_efs:
21971 .previous
21972 diff --git a/arch/x86/lib/memset_64.S b/arch/x86/lib/memset_64.S
21973 index 2dcb380..963660a 100644
21974 --- a/arch/x86/lib/memset_64.S
21975 +++ b/arch/x86/lib/memset_64.S
21976 @@ -30,6 +30,7 @@
21977 movl %edx,%ecx
21978 rep stosb
21979 movq %r9,%rax
21980 + pax_force_retaddr
21981 ret
21982 .Lmemset_e:
21983 .previous
21984 @@ -52,6 +53,7 @@
21985 movq %rdx,%rcx
21986 rep stosb
21987 movq %r9,%rax
21988 + pax_force_retaddr
21989 ret
21990 .Lmemset_e_e:
21991 .previous
21992 @@ -59,7 +61,7 @@
21993 ENTRY(memset)
21994 ENTRY(__memset)
21995 CFI_STARTPROC
21996 - movq %rdi,%r10
21997 + movq %rdi,%r11
21998
21999 /* expand byte value */
22000 movzbl %sil,%ecx
22001 @@ -117,7 +119,8 @@ ENTRY(__memset)
22002 jnz .Lloop_1
22003
22004 .Lende:
22005 - movq %r10,%rax
22006 + movq %r11,%rax
22007 + pax_force_retaddr
22008 ret
22009
22010 CFI_RESTORE_STATE
22011 diff --git a/arch/x86/lib/mmx_32.c b/arch/x86/lib/mmx_32.c
22012 index c9f2d9b..e7fd2c0 100644
22013 --- a/arch/x86/lib/mmx_32.c
22014 +++ b/arch/x86/lib/mmx_32.c
22015 @@ -29,6 +29,7 @@ void *_mmx_memcpy(void *to, const void *from, size_t len)
22016 {
22017 void *p;
22018 int i;
22019 + unsigned long cr0;
22020
22021 if (unlikely(in_interrupt()))
22022 return __memcpy(to, from, len);
22023 @@ -39,44 +40,72 @@ void *_mmx_memcpy(void *to, const void *from, size_t len)
22024 kernel_fpu_begin();
22025
22026 __asm__ __volatile__ (
22027 - "1: prefetch (%0)\n" /* This set is 28 bytes */
22028 - " prefetch 64(%0)\n"
22029 - " prefetch 128(%0)\n"
22030 - " prefetch 192(%0)\n"
22031 - " prefetch 256(%0)\n"
22032 + "1: prefetch (%1)\n" /* This set is 28 bytes */
22033 + " prefetch 64(%1)\n"
22034 + " prefetch 128(%1)\n"
22035 + " prefetch 192(%1)\n"
22036 + " prefetch 256(%1)\n"
22037 "2: \n"
22038 ".section .fixup, \"ax\"\n"
22039 - "3: movw $0x1AEB, 1b\n" /* jmp on 26 bytes */
22040 + "3: \n"
22041 +
22042 +#ifdef CONFIG_PAX_KERNEXEC
22043 + " movl %%cr0, %0\n"
22044 + " movl %0, %%eax\n"
22045 + " andl $0xFFFEFFFF, %%eax\n"
22046 + " movl %%eax, %%cr0\n"
22047 +#endif
22048 +
22049 + " movw $0x1AEB, 1b\n" /* jmp on 26 bytes */
22050 +
22051 +#ifdef CONFIG_PAX_KERNEXEC
22052 + " movl %0, %%cr0\n"
22053 +#endif
22054 +
22055 " jmp 2b\n"
22056 ".previous\n"
22057 _ASM_EXTABLE(1b, 3b)
22058 - : : "r" (from));
22059 + : "=&r" (cr0) : "r" (from) : "ax");
22060
22061 for ( ; i > 5; i--) {
22062 __asm__ __volatile__ (
22063 - "1: prefetch 320(%0)\n"
22064 - "2: movq (%0), %%mm0\n"
22065 - " movq 8(%0), %%mm1\n"
22066 - " movq 16(%0), %%mm2\n"
22067 - " movq 24(%0), %%mm3\n"
22068 - " movq %%mm0, (%1)\n"
22069 - " movq %%mm1, 8(%1)\n"
22070 - " movq %%mm2, 16(%1)\n"
22071 - " movq %%mm3, 24(%1)\n"
22072 - " movq 32(%0), %%mm0\n"
22073 - " movq 40(%0), %%mm1\n"
22074 - " movq 48(%0), %%mm2\n"
22075 - " movq 56(%0), %%mm3\n"
22076 - " movq %%mm0, 32(%1)\n"
22077 - " movq %%mm1, 40(%1)\n"
22078 - " movq %%mm2, 48(%1)\n"
22079 - " movq %%mm3, 56(%1)\n"
22080 + "1: prefetch 320(%1)\n"
22081 + "2: movq (%1), %%mm0\n"
22082 + " movq 8(%1), %%mm1\n"
22083 + " movq 16(%1), %%mm2\n"
22084 + " movq 24(%1), %%mm3\n"
22085 + " movq %%mm0, (%2)\n"
22086 + " movq %%mm1, 8(%2)\n"
22087 + " movq %%mm2, 16(%2)\n"
22088 + " movq %%mm3, 24(%2)\n"
22089 + " movq 32(%1), %%mm0\n"
22090 + " movq 40(%1), %%mm1\n"
22091 + " movq 48(%1), %%mm2\n"
22092 + " movq 56(%1), %%mm3\n"
22093 + " movq %%mm0, 32(%2)\n"
22094 + " movq %%mm1, 40(%2)\n"
22095 + " movq %%mm2, 48(%2)\n"
22096 + " movq %%mm3, 56(%2)\n"
22097 ".section .fixup, \"ax\"\n"
22098 - "3: movw $0x05EB, 1b\n" /* jmp on 5 bytes */
22099 + "3:\n"
22100 +
22101 +#ifdef CONFIG_PAX_KERNEXEC
22102 + " movl %%cr0, %0\n"
22103 + " movl %0, %%eax\n"
22104 + " andl $0xFFFEFFFF, %%eax\n"
22105 + " movl %%eax, %%cr0\n"
22106 +#endif
22107 +
22108 + " movw $0x05EB, 1b\n" /* jmp on 5 bytes */
22109 +
22110 +#ifdef CONFIG_PAX_KERNEXEC
22111 + " movl %0, %%cr0\n"
22112 +#endif
22113 +
22114 " jmp 2b\n"
22115 ".previous\n"
22116 _ASM_EXTABLE(1b, 3b)
22117 - : : "r" (from), "r" (to) : "memory");
22118 + : "=&r" (cr0) : "r" (from), "r" (to) : "memory", "ax");
22119
22120 from += 64;
22121 to += 64;
22122 @@ -158,6 +187,7 @@ static void fast_clear_page(void *page)
22123 static void fast_copy_page(void *to, void *from)
22124 {
22125 int i;
22126 + unsigned long cr0;
22127
22128 kernel_fpu_begin();
22129
22130 @@ -166,42 +196,70 @@ static void fast_copy_page(void *to, void *from)
22131 * but that is for later. -AV
22132 */
22133 __asm__ __volatile__(
22134 - "1: prefetch (%0)\n"
22135 - " prefetch 64(%0)\n"
22136 - " prefetch 128(%0)\n"
22137 - " prefetch 192(%0)\n"
22138 - " prefetch 256(%0)\n"
22139 + "1: prefetch (%1)\n"
22140 + " prefetch 64(%1)\n"
22141 + " prefetch 128(%1)\n"
22142 + " prefetch 192(%1)\n"
22143 + " prefetch 256(%1)\n"
22144 "2: \n"
22145 ".section .fixup, \"ax\"\n"
22146 - "3: movw $0x1AEB, 1b\n" /* jmp on 26 bytes */
22147 + "3: \n"
22148 +
22149 +#ifdef CONFIG_PAX_KERNEXEC
22150 + " movl %%cr0, %0\n"
22151 + " movl %0, %%eax\n"
22152 + " andl $0xFFFEFFFF, %%eax\n"
22153 + " movl %%eax, %%cr0\n"
22154 +#endif
22155 +
22156 + " movw $0x1AEB, 1b\n" /* jmp on 26 bytes */
22157 +
22158 +#ifdef CONFIG_PAX_KERNEXEC
22159 + " movl %0, %%cr0\n"
22160 +#endif
22161 +
22162 " jmp 2b\n"
22163 ".previous\n"
22164 - _ASM_EXTABLE(1b, 3b) : : "r" (from));
22165 + _ASM_EXTABLE(1b, 3b) : "=&r" (cr0) : "r" (from) : "ax");
22166
22167 for (i = 0; i < (4096-320)/64; i++) {
22168 __asm__ __volatile__ (
22169 - "1: prefetch 320(%0)\n"
22170 - "2: movq (%0), %%mm0\n"
22171 - " movntq %%mm0, (%1)\n"
22172 - " movq 8(%0), %%mm1\n"
22173 - " movntq %%mm1, 8(%1)\n"
22174 - " movq 16(%0), %%mm2\n"
22175 - " movntq %%mm2, 16(%1)\n"
22176 - " movq 24(%0), %%mm3\n"
22177 - " movntq %%mm3, 24(%1)\n"
22178 - " movq 32(%0), %%mm4\n"
22179 - " movntq %%mm4, 32(%1)\n"
22180 - " movq 40(%0), %%mm5\n"
22181 - " movntq %%mm5, 40(%1)\n"
22182 - " movq 48(%0), %%mm6\n"
22183 - " movntq %%mm6, 48(%1)\n"
22184 - " movq 56(%0), %%mm7\n"
22185 - " movntq %%mm7, 56(%1)\n"
22186 + "1: prefetch 320(%1)\n"
22187 + "2: movq (%1), %%mm0\n"
22188 + " movntq %%mm0, (%2)\n"
22189 + " movq 8(%1), %%mm1\n"
22190 + " movntq %%mm1, 8(%2)\n"
22191 + " movq 16(%1), %%mm2\n"
22192 + " movntq %%mm2, 16(%2)\n"
22193 + " movq 24(%1), %%mm3\n"
22194 + " movntq %%mm3, 24(%2)\n"
22195 + " movq 32(%1), %%mm4\n"
22196 + " movntq %%mm4, 32(%2)\n"
22197 + " movq 40(%1), %%mm5\n"
22198 + " movntq %%mm5, 40(%2)\n"
22199 + " movq 48(%1), %%mm6\n"
22200 + " movntq %%mm6, 48(%2)\n"
22201 + " movq 56(%1), %%mm7\n"
22202 + " movntq %%mm7, 56(%2)\n"
22203 ".section .fixup, \"ax\"\n"
22204 - "3: movw $0x05EB, 1b\n" /* jmp on 5 bytes */
22205 + "3:\n"
22206 +
22207 +#ifdef CONFIG_PAX_KERNEXEC
22208 + " movl %%cr0, %0\n"
22209 + " movl %0, %%eax\n"
22210 + " andl $0xFFFEFFFF, %%eax\n"
22211 + " movl %%eax, %%cr0\n"
22212 +#endif
22213 +
22214 + " movw $0x05EB, 1b\n" /* jmp on 5 bytes */
22215 +
22216 +#ifdef CONFIG_PAX_KERNEXEC
22217 + " movl %0, %%cr0\n"
22218 +#endif
22219 +
22220 " jmp 2b\n"
22221 ".previous\n"
22222 - _ASM_EXTABLE(1b, 3b) : : "r" (from), "r" (to) : "memory");
22223 + _ASM_EXTABLE(1b, 3b) : "=&r" (cr0) : "r" (from), "r" (to) : "memory", "ax");
22224
22225 from += 64;
22226 to += 64;
22227 @@ -280,47 +338,76 @@ static void fast_clear_page(void *page)
22228 static void fast_copy_page(void *to, void *from)
22229 {
22230 int i;
22231 + unsigned long cr0;
22232
22233 kernel_fpu_begin();
22234
22235 __asm__ __volatile__ (
22236 - "1: prefetch (%0)\n"
22237 - " prefetch 64(%0)\n"
22238 - " prefetch 128(%0)\n"
22239 - " prefetch 192(%0)\n"
22240 - " prefetch 256(%0)\n"
22241 + "1: prefetch (%1)\n"
22242 + " prefetch 64(%1)\n"
22243 + " prefetch 128(%1)\n"
22244 + " prefetch 192(%1)\n"
22245 + " prefetch 256(%1)\n"
22246 "2: \n"
22247 ".section .fixup, \"ax\"\n"
22248 - "3: movw $0x1AEB, 1b\n" /* jmp on 26 bytes */
22249 + "3: \n"
22250 +
22251 +#ifdef CONFIG_PAX_KERNEXEC
22252 + " movl %%cr0, %0\n"
22253 + " movl %0, %%eax\n"
22254 + " andl $0xFFFEFFFF, %%eax\n"
22255 + " movl %%eax, %%cr0\n"
22256 +#endif
22257 +
22258 + " movw $0x1AEB, 1b\n" /* jmp on 26 bytes */
22259 +
22260 +#ifdef CONFIG_PAX_KERNEXEC
22261 + " movl %0, %%cr0\n"
22262 +#endif
22263 +
22264 " jmp 2b\n"
22265 ".previous\n"
22266 - _ASM_EXTABLE(1b, 3b) : : "r" (from));
22267 + _ASM_EXTABLE(1b, 3b) : "=&r" (cr0) : "r" (from) : "ax");
22268
22269 for (i = 0; i < 4096/64; i++) {
22270 __asm__ __volatile__ (
22271 - "1: prefetch 320(%0)\n"
22272 - "2: movq (%0), %%mm0\n"
22273 - " movq 8(%0), %%mm1\n"
22274 - " movq 16(%0), %%mm2\n"
22275 - " movq 24(%0), %%mm3\n"
22276 - " movq %%mm0, (%1)\n"
22277 - " movq %%mm1, 8(%1)\n"
22278 - " movq %%mm2, 16(%1)\n"
22279 - " movq %%mm3, 24(%1)\n"
22280 - " movq 32(%0), %%mm0\n"
22281 - " movq 40(%0), %%mm1\n"
22282 - " movq 48(%0), %%mm2\n"
22283 - " movq 56(%0), %%mm3\n"
22284 - " movq %%mm0, 32(%1)\n"
22285 - " movq %%mm1, 40(%1)\n"
22286 - " movq %%mm2, 48(%1)\n"
22287 - " movq %%mm3, 56(%1)\n"
22288 + "1: prefetch 320(%1)\n"
22289 + "2: movq (%1), %%mm0\n"
22290 + " movq 8(%1), %%mm1\n"
22291 + " movq 16(%1), %%mm2\n"
22292 + " movq 24(%1), %%mm3\n"
22293 + " movq %%mm0, (%2)\n"
22294 + " movq %%mm1, 8(%2)\n"
22295 + " movq %%mm2, 16(%2)\n"
22296 + " movq %%mm3, 24(%2)\n"
22297 + " movq 32(%1), %%mm0\n"
22298 + " movq 40(%1), %%mm1\n"
22299 + " movq 48(%1), %%mm2\n"
22300 + " movq 56(%1), %%mm3\n"
22301 + " movq %%mm0, 32(%2)\n"
22302 + " movq %%mm1, 40(%2)\n"
22303 + " movq %%mm2, 48(%2)\n"
22304 + " movq %%mm3, 56(%2)\n"
22305 ".section .fixup, \"ax\"\n"
22306 - "3: movw $0x05EB, 1b\n" /* jmp on 5 bytes */
22307 + "3:\n"
22308 +
22309 +#ifdef CONFIG_PAX_KERNEXEC
22310 + " movl %%cr0, %0\n"
22311 + " movl %0, %%eax\n"
22312 + " andl $0xFFFEFFFF, %%eax\n"
22313 + " movl %%eax, %%cr0\n"
22314 +#endif
22315 +
22316 + " movw $0x05EB, 1b\n" /* jmp on 5 bytes */
22317 +
22318 +#ifdef CONFIG_PAX_KERNEXEC
22319 + " movl %0, %%cr0\n"
22320 +#endif
22321 +
22322 " jmp 2b\n"
22323 ".previous\n"
22324 _ASM_EXTABLE(1b, 3b)
22325 - : : "r" (from), "r" (to) : "memory");
22326 + : "=&r" (cr0) : "r" (from), "r" (to) : "memory", "ax");
22327
22328 from += 64;
22329 to += 64;
22330 diff --git a/arch/x86/lib/msr-reg.S b/arch/x86/lib/msr-reg.S
22331 index 69fa106..adda88b 100644
22332 --- a/arch/x86/lib/msr-reg.S
22333 +++ b/arch/x86/lib/msr-reg.S
22334 @@ -3,6 +3,7 @@
22335 #include <asm/dwarf2.h>
22336 #include <asm/asm.h>
22337 #include <asm/msr.h>
22338 +#include <asm/alternative-asm.h>
22339
22340 #ifdef CONFIG_X86_64
22341 /*
22342 @@ -16,7 +17,7 @@ ENTRY(native_\op\()_safe_regs)
22343 CFI_STARTPROC
22344 pushq_cfi %rbx
22345 pushq_cfi %rbp
22346 - movq %rdi, %r10 /* Save pointer */
22347 + movq %rdi, %r9 /* Save pointer */
22348 xorl %r11d, %r11d /* Return value */
22349 movl (%rdi), %eax
22350 movl 4(%rdi), %ecx
22351 @@ -27,16 +28,17 @@ ENTRY(native_\op\()_safe_regs)
22352 movl 28(%rdi), %edi
22353 CFI_REMEMBER_STATE
22354 1: \op
22355 -2: movl %eax, (%r10)
22356 +2: movl %eax, (%r9)
22357 movl %r11d, %eax /* Return value */
22358 - movl %ecx, 4(%r10)
22359 - movl %edx, 8(%r10)
22360 - movl %ebx, 12(%r10)
22361 - movl %ebp, 20(%r10)
22362 - movl %esi, 24(%r10)
22363 - movl %edi, 28(%r10)
22364 + movl %ecx, 4(%r9)
22365 + movl %edx, 8(%r9)
22366 + movl %ebx, 12(%r9)
22367 + movl %ebp, 20(%r9)
22368 + movl %esi, 24(%r9)
22369 + movl %edi, 28(%r9)
22370 popq_cfi %rbp
22371 popq_cfi %rbx
22372 + pax_force_retaddr
22373 ret
22374 3:
22375 CFI_RESTORE_STATE
22376 diff --git a/arch/x86/lib/putuser.S b/arch/x86/lib/putuser.S
22377 index 7f951c8..ebd573a 100644
22378 --- a/arch/x86/lib/putuser.S
22379 +++ b/arch/x86/lib/putuser.S
22380 @@ -15,7 +15,9 @@
22381 #include <asm/thread_info.h>
22382 #include <asm/errno.h>
22383 #include <asm/asm.h>
22384 -
22385 +#include <asm/segment.h>
22386 +#include <asm/pgtable.h>
22387 +#include <asm/alternative-asm.h>
22388
22389 /*
22390 * __put_user_X
22391 @@ -29,52 +31,119 @@
22392 * as they get called from within inline assembly.
22393 */
22394
22395 -#define ENTER CFI_STARTPROC ; \
22396 - GET_THREAD_INFO(%_ASM_BX)
22397 -#define EXIT ret ; \
22398 +#define ENTER CFI_STARTPROC
22399 +#define EXIT pax_force_retaddr; ret ; \
22400 CFI_ENDPROC
22401
22402 +#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
22403 +#define _DEST %_ASM_CX,%_ASM_BX
22404 +#else
22405 +#define _DEST %_ASM_CX
22406 +#endif
22407 +
22408 +#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_MEMORY_UDEREF)
22409 +#define __copyuser_seg gs;
22410 +#else
22411 +#define __copyuser_seg
22412 +#endif
22413 +
22414 .text
22415 ENTRY(__put_user_1)
22416 ENTER
22417 +
22418 +#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF)
22419 + GET_THREAD_INFO(%_ASM_BX)
22420 cmp TI_addr_limit(%_ASM_BX),%_ASM_CX
22421 jae bad_put_user
22422 -1: movb %al,(%_ASM_CX)
22423 +
22424 +#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
22425 + mov $PAX_USER_SHADOW_BASE,%_ASM_BX
22426 + cmp %_ASM_BX,%_ASM_CX
22427 + jb 1234f
22428 + xor %ebx,%ebx
22429 +1234:
22430 +#endif
22431 +
22432 +#endif
22433 +
22434 +1: __copyuser_seg movb %al,(_DEST)
22435 xor %eax,%eax
22436 EXIT
22437 ENDPROC(__put_user_1)
22438
22439 ENTRY(__put_user_2)
22440 ENTER
22441 +
22442 +#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF)
22443 + GET_THREAD_INFO(%_ASM_BX)
22444 mov TI_addr_limit(%_ASM_BX),%_ASM_BX
22445 sub $1,%_ASM_BX
22446 cmp %_ASM_BX,%_ASM_CX
22447 jae bad_put_user
22448 -2: movw %ax,(%_ASM_CX)
22449 +
22450 +#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
22451 + mov $PAX_USER_SHADOW_BASE,%_ASM_BX
22452 + cmp %_ASM_BX,%_ASM_CX
22453 + jb 1234f
22454 + xor %ebx,%ebx
22455 +1234:
22456 +#endif
22457 +
22458 +#endif
22459 +
22460 +2: __copyuser_seg movw %ax,(_DEST)
22461 xor %eax,%eax
22462 EXIT
22463 ENDPROC(__put_user_2)
22464
22465 ENTRY(__put_user_4)
22466 ENTER
22467 +
22468 +#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF)
22469 + GET_THREAD_INFO(%_ASM_BX)
22470 mov TI_addr_limit(%_ASM_BX),%_ASM_BX
22471 sub $3,%_ASM_BX
22472 cmp %_ASM_BX,%_ASM_CX
22473 jae bad_put_user
22474 -3: movl %eax,(%_ASM_CX)
22475 +
22476 +#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
22477 + mov $PAX_USER_SHADOW_BASE,%_ASM_BX
22478 + cmp %_ASM_BX,%_ASM_CX
22479 + jb 1234f
22480 + xor %ebx,%ebx
22481 +1234:
22482 +#endif
22483 +
22484 +#endif
22485 +
22486 +3: __copyuser_seg movl %eax,(_DEST)
22487 xor %eax,%eax
22488 EXIT
22489 ENDPROC(__put_user_4)
22490
22491 ENTRY(__put_user_8)
22492 ENTER
22493 +
22494 +#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF)
22495 + GET_THREAD_INFO(%_ASM_BX)
22496 mov TI_addr_limit(%_ASM_BX),%_ASM_BX
22497 sub $7,%_ASM_BX
22498 cmp %_ASM_BX,%_ASM_CX
22499 jae bad_put_user
22500 -4: mov %_ASM_AX,(%_ASM_CX)
22501 +
22502 +#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
22503 + mov $PAX_USER_SHADOW_BASE,%_ASM_BX
22504 + cmp %_ASM_BX,%_ASM_CX
22505 + jb 1234f
22506 + xor %ebx,%ebx
22507 +1234:
22508 +#endif
22509 +
22510 +#endif
22511 +
22512 +4: __copyuser_seg mov %_ASM_AX,(_DEST)
22513 #ifdef CONFIG_X86_32
22514 -5: movl %edx,4(%_ASM_CX)
22515 +5: __copyuser_seg movl %edx,4(_DEST)
22516 #endif
22517 xor %eax,%eax
22518 EXIT
22519 diff --git a/arch/x86/lib/rwlock.S b/arch/x86/lib/rwlock.S
22520 index 1cad221..de671ee 100644
22521 --- a/arch/x86/lib/rwlock.S
22522 +++ b/arch/x86/lib/rwlock.S
22523 @@ -16,13 +16,34 @@ ENTRY(__write_lock_failed)
22524 FRAME
22525 0: LOCK_PREFIX
22526 WRITE_LOCK_ADD($RW_LOCK_BIAS) (%__lock_ptr)
22527 +
22528 +#ifdef CONFIG_PAX_REFCOUNT
22529 + jno 1234f
22530 + LOCK_PREFIX
22531 + WRITE_LOCK_SUB($RW_LOCK_BIAS) (%__lock_ptr)
22532 + int $4
22533 +1234:
22534 + _ASM_EXTABLE(1234b, 1234b)
22535 +#endif
22536 +
22537 1: rep; nop
22538 cmpl $WRITE_LOCK_CMP, (%__lock_ptr)
22539 jne 1b
22540 LOCK_PREFIX
22541 WRITE_LOCK_SUB($RW_LOCK_BIAS) (%__lock_ptr)
22542 +
22543 +#ifdef CONFIG_PAX_REFCOUNT
22544 + jno 1234f
22545 + LOCK_PREFIX
22546 + WRITE_LOCK_ADD($RW_LOCK_BIAS) (%__lock_ptr)
22547 + int $4
22548 +1234:
22549 + _ASM_EXTABLE(1234b, 1234b)
22550 +#endif
22551 +
22552 jnz 0b
22553 ENDFRAME
22554 + pax_force_retaddr
22555 ret
22556 CFI_ENDPROC
22557 END(__write_lock_failed)
22558 @@ -32,13 +53,34 @@ ENTRY(__read_lock_failed)
22559 FRAME
22560 0: LOCK_PREFIX
22561 READ_LOCK_SIZE(inc) (%__lock_ptr)
22562 +
22563 +#ifdef CONFIG_PAX_REFCOUNT
22564 + jno 1234f
22565 + LOCK_PREFIX
22566 + READ_LOCK_SIZE(dec) (%__lock_ptr)
22567 + int $4
22568 +1234:
22569 + _ASM_EXTABLE(1234b, 1234b)
22570 +#endif
22571 +
22572 1: rep; nop
22573 READ_LOCK_SIZE(cmp) $1, (%__lock_ptr)
22574 js 1b
22575 LOCK_PREFIX
22576 READ_LOCK_SIZE(dec) (%__lock_ptr)
22577 +
22578 +#ifdef CONFIG_PAX_REFCOUNT
22579 + jno 1234f
22580 + LOCK_PREFIX
22581 + READ_LOCK_SIZE(inc) (%__lock_ptr)
22582 + int $4
22583 +1234:
22584 + _ASM_EXTABLE(1234b, 1234b)
22585 +#endif
22586 +
22587 js 0b
22588 ENDFRAME
22589 + pax_force_retaddr
22590 ret
22591 CFI_ENDPROC
22592 END(__read_lock_failed)
22593 diff --git a/arch/x86/lib/rwsem.S b/arch/x86/lib/rwsem.S
22594 index 5dff5f0..cadebf4 100644
22595 --- a/arch/x86/lib/rwsem.S
22596 +++ b/arch/x86/lib/rwsem.S
22597 @@ -94,6 +94,7 @@ ENTRY(call_rwsem_down_read_failed)
22598 __ASM_SIZE(pop,_cfi) %__ASM_REG(dx)
22599 CFI_RESTORE __ASM_REG(dx)
22600 restore_common_regs
22601 + pax_force_retaddr
22602 ret
22603 CFI_ENDPROC
22604 ENDPROC(call_rwsem_down_read_failed)
22605 @@ -104,6 +105,7 @@ ENTRY(call_rwsem_down_write_failed)
22606 movq %rax,%rdi
22607 call rwsem_down_write_failed
22608 restore_common_regs
22609 + pax_force_retaddr
22610 ret
22611 CFI_ENDPROC
22612 ENDPROC(call_rwsem_down_write_failed)
22613 @@ -117,7 +119,8 @@ ENTRY(call_rwsem_wake)
22614 movq %rax,%rdi
22615 call rwsem_wake
22616 restore_common_regs
22617 -1: ret
22618 +1: pax_force_retaddr
22619 + ret
22620 CFI_ENDPROC
22621 ENDPROC(call_rwsem_wake)
22622
22623 @@ -131,6 +134,7 @@ ENTRY(call_rwsem_downgrade_wake)
22624 __ASM_SIZE(pop,_cfi) %__ASM_REG(dx)
22625 CFI_RESTORE __ASM_REG(dx)
22626 restore_common_regs
22627 + pax_force_retaddr
22628 ret
22629 CFI_ENDPROC
22630 ENDPROC(call_rwsem_downgrade_wake)
22631 diff --git a/arch/x86/lib/thunk_64.S b/arch/x86/lib/thunk_64.S
22632 index a63efd6..ccecad8 100644
22633 --- a/arch/x86/lib/thunk_64.S
22634 +++ b/arch/x86/lib/thunk_64.S
22635 @@ -8,6 +8,7 @@
22636 #include <linux/linkage.h>
22637 #include <asm/dwarf2.h>
22638 #include <asm/calling.h>
22639 +#include <asm/alternative-asm.h>
22640
22641 /* rdi: arg1 ... normal C conventions. rax is saved/restored. */
22642 .macro THUNK name, func, put_ret_addr_in_rdi=0
22643 @@ -41,5 +42,6 @@
22644 SAVE_ARGS
22645 restore:
22646 RESTORE_ARGS
22647 + pax_force_retaddr
22648 ret
22649 CFI_ENDPROC
22650 diff --git a/arch/x86/lib/usercopy_32.c b/arch/x86/lib/usercopy_32.c
22651 index 1781b2f..90368dd 100644
22652 --- a/arch/x86/lib/usercopy_32.c
22653 +++ b/arch/x86/lib/usercopy_32.c
22654 @@ -42,10 +42,12 @@ do { \
22655 int __d0; \
22656 might_fault(); \
22657 __asm__ __volatile__( \
22658 + __COPYUSER_SET_ES \
22659 "0: rep; stosl\n" \
22660 " movl %2,%0\n" \
22661 "1: rep; stosb\n" \
22662 "2:\n" \
22663 + __COPYUSER_RESTORE_ES \
22664 ".section .fixup,\"ax\"\n" \
22665 "3: lea 0(%2,%0,4),%0\n" \
22666 " jmp 2b\n" \
22667 @@ -97,7 +99,7 @@ EXPORT_SYMBOL(__clear_user);
22668
22669 #ifdef CONFIG_X86_INTEL_USERCOPY
22670 static unsigned long
22671 -__copy_user_intel(void __user *to, const void *from, unsigned long size)
22672 +__generic_copy_to_user_intel(void __user *to, const void *from, unsigned long size)
22673 {
22674 int d0, d1;
22675 __asm__ __volatile__(
22676 @@ -109,36 +111,36 @@ __copy_user_intel(void __user *to, const void *from, unsigned long size)
22677 " .align 2,0x90\n"
22678 "3: movl 0(%4), %%eax\n"
22679 "4: movl 4(%4), %%edx\n"
22680 - "5: movl %%eax, 0(%3)\n"
22681 - "6: movl %%edx, 4(%3)\n"
22682 + "5: "__copyuser_seg" movl %%eax, 0(%3)\n"
22683 + "6: "__copyuser_seg" movl %%edx, 4(%3)\n"
22684 "7: movl 8(%4), %%eax\n"
22685 "8: movl 12(%4),%%edx\n"
22686 - "9: movl %%eax, 8(%3)\n"
22687 - "10: movl %%edx, 12(%3)\n"
22688 + "9: "__copyuser_seg" movl %%eax, 8(%3)\n"
22689 + "10: "__copyuser_seg" movl %%edx, 12(%3)\n"
22690 "11: movl 16(%4), %%eax\n"
22691 "12: movl 20(%4), %%edx\n"
22692 - "13: movl %%eax, 16(%3)\n"
22693 - "14: movl %%edx, 20(%3)\n"
22694 + "13: "__copyuser_seg" movl %%eax, 16(%3)\n"
22695 + "14: "__copyuser_seg" movl %%edx, 20(%3)\n"
22696 "15: movl 24(%4), %%eax\n"
22697 "16: movl 28(%4), %%edx\n"
22698 - "17: movl %%eax, 24(%3)\n"
22699 - "18: movl %%edx, 28(%3)\n"
22700 + "17: "__copyuser_seg" movl %%eax, 24(%3)\n"
22701 + "18: "__copyuser_seg" movl %%edx, 28(%3)\n"
22702 "19: movl 32(%4), %%eax\n"
22703 "20: movl 36(%4), %%edx\n"
22704 - "21: movl %%eax, 32(%3)\n"
22705 - "22: movl %%edx, 36(%3)\n"
22706 + "21: "__copyuser_seg" movl %%eax, 32(%3)\n"
22707 + "22: "__copyuser_seg" movl %%edx, 36(%3)\n"
22708 "23: movl 40(%4), %%eax\n"
22709 "24: movl 44(%4), %%edx\n"
22710 - "25: movl %%eax, 40(%3)\n"
22711 - "26: movl %%edx, 44(%3)\n"
22712 + "25: "__copyuser_seg" movl %%eax, 40(%3)\n"
22713 + "26: "__copyuser_seg" movl %%edx, 44(%3)\n"
22714 "27: movl 48(%4), %%eax\n"
22715 "28: movl 52(%4), %%edx\n"
22716 - "29: movl %%eax, 48(%3)\n"
22717 - "30: movl %%edx, 52(%3)\n"
22718 + "29: "__copyuser_seg" movl %%eax, 48(%3)\n"
22719 + "30: "__copyuser_seg" movl %%edx, 52(%3)\n"
22720 "31: movl 56(%4), %%eax\n"
22721 "32: movl 60(%4), %%edx\n"
22722 - "33: movl %%eax, 56(%3)\n"
22723 - "34: movl %%edx, 60(%3)\n"
22724 + "33: "__copyuser_seg" movl %%eax, 56(%3)\n"
22725 + "34: "__copyuser_seg" movl %%edx, 60(%3)\n"
22726 " addl $-64, %0\n"
22727 " addl $64, %4\n"
22728 " addl $64, %3\n"
22729 @@ -148,10 +150,12 @@ __copy_user_intel(void __user *to, const void *from, unsigned long size)
22730 " shrl $2, %0\n"
22731 " andl $3, %%eax\n"
22732 " cld\n"
22733 + __COPYUSER_SET_ES
22734 "99: rep; movsl\n"
22735 "36: movl %%eax, %0\n"
22736 "37: rep; movsb\n"
22737 "100:\n"
22738 + __COPYUSER_RESTORE_ES
22739 ".section .fixup,\"ax\"\n"
22740 "101: lea 0(%%eax,%0,4),%0\n"
22741 " jmp 100b\n"
22742 @@ -201,46 +205,150 @@ __copy_user_intel(void __user *to, const void *from, unsigned long size)
22743 }
22744
22745 static unsigned long
22746 +__generic_copy_from_user_intel(void *to, const void __user *from, unsigned long size)
22747 +{
22748 + int d0, d1;
22749 + __asm__ __volatile__(
22750 + " .align 2,0x90\n"
22751 + "1: "__copyuser_seg" movl 32(%4), %%eax\n"
22752 + " cmpl $67, %0\n"
22753 + " jbe 3f\n"
22754 + "2: "__copyuser_seg" movl 64(%4), %%eax\n"
22755 + " .align 2,0x90\n"
22756 + "3: "__copyuser_seg" movl 0(%4), %%eax\n"
22757 + "4: "__copyuser_seg" movl 4(%4), %%edx\n"
22758 + "5: movl %%eax, 0(%3)\n"
22759 + "6: movl %%edx, 4(%3)\n"
22760 + "7: "__copyuser_seg" movl 8(%4), %%eax\n"
22761 + "8: "__copyuser_seg" movl 12(%4),%%edx\n"
22762 + "9: movl %%eax, 8(%3)\n"
22763 + "10: movl %%edx, 12(%3)\n"
22764 + "11: "__copyuser_seg" movl 16(%4), %%eax\n"
22765 + "12: "__copyuser_seg" movl 20(%4), %%edx\n"
22766 + "13: movl %%eax, 16(%3)\n"
22767 + "14: movl %%edx, 20(%3)\n"
22768 + "15: "__copyuser_seg" movl 24(%4), %%eax\n"
22769 + "16: "__copyuser_seg" movl 28(%4), %%edx\n"
22770 + "17: movl %%eax, 24(%3)\n"
22771 + "18: movl %%edx, 28(%3)\n"
22772 + "19: "__copyuser_seg" movl 32(%4), %%eax\n"
22773 + "20: "__copyuser_seg" movl 36(%4), %%edx\n"
22774 + "21: movl %%eax, 32(%3)\n"
22775 + "22: movl %%edx, 36(%3)\n"
22776 + "23: "__copyuser_seg" movl 40(%4), %%eax\n"
22777 + "24: "__copyuser_seg" movl 44(%4), %%edx\n"
22778 + "25: movl %%eax, 40(%3)\n"
22779 + "26: movl %%edx, 44(%3)\n"
22780 + "27: "__copyuser_seg" movl 48(%4), %%eax\n"
22781 + "28: "__copyuser_seg" movl 52(%4), %%edx\n"
22782 + "29: movl %%eax, 48(%3)\n"
22783 + "30: movl %%edx, 52(%3)\n"
22784 + "31: "__copyuser_seg" movl 56(%4), %%eax\n"
22785 + "32: "__copyuser_seg" movl 60(%4), %%edx\n"
22786 + "33: movl %%eax, 56(%3)\n"
22787 + "34: movl %%edx, 60(%3)\n"
22788 + " addl $-64, %0\n"
22789 + " addl $64, %4\n"
22790 + " addl $64, %3\n"
22791 + " cmpl $63, %0\n"
22792 + " ja 1b\n"
22793 + "35: movl %0, %%eax\n"
22794 + " shrl $2, %0\n"
22795 + " andl $3, %%eax\n"
22796 + " cld\n"
22797 + "99: rep; "__copyuser_seg" movsl\n"
22798 + "36: movl %%eax, %0\n"
22799 + "37: rep; "__copyuser_seg" movsb\n"
22800 + "100:\n"
22801 + ".section .fixup,\"ax\"\n"
22802 + "101: lea 0(%%eax,%0,4),%0\n"
22803 + " jmp 100b\n"
22804 + ".previous\n"
22805 + _ASM_EXTABLE(1b,100b)
22806 + _ASM_EXTABLE(2b,100b)
22807 + _ASM_EXTABLE(3b,100b)
22808 + _ASM_EXTABLE(4b,100b)
22809 + _ASM_EXTABLE(5b,100b)
22810 + _ASM_EXTABLE(6b,100b)
22811 + _ASM_EXTABLE(7b,100b)
22812 + _ASM_EXTABLE(8b,100b)
22813 + _ASM_EXTABLE(9b,100b)
22814 + _ASM_EXTABLE(10b,100b)
22815 + _ASM_EXTABLE(11b,100b)
22816 + _ASM_EXTABLE(12b,100b)
22817 + _ASM_EXTABLE(13b,100b)
22818 + _ASM_EXTABLE(14b,100b)
22819 + _ASM_EXTABLE(15b,100b)
22820 + _ASM_EXTABLE(16b,100b)
22821 + _ASM_EXTABLE(17b,100b)
22822 + _ASM_EXTABLE(18b,100b)
22823 + _ASM_EXTABLE(19b,100b)
22824 + _ASM_EXTABLE(20b,100b)
22825 + _ASM_EXTABLE(21b,100b)
22826 + _ASM_EXTABLE(22b,100b)
22827 + _ASM_EXTABLE(23b,100b)
22828 + _ASM_EXTABLE(24b,100b)
22829 + _ASM_EXTABLE(25b,100b)
22830 + _ASM_EXTABLE(26b,100b)
22831 + _ASM_EXTABLE(27b,100b)
22832 + _ASM_EXTABLE(28b,100b)
22833 + _ASM_EXTABLE(29b,100b)
22834 + _ASM_EXTABLE(30b,100b)
22835 + _ASM_EXTABLE(31b,100b)
22836 + _ASM_EXTABLE(32b,100b)
22837 + _ASM_EXTABLE(33b,100b)
22838 + _ASM_EXTABLE(34b,100b)
22839 + _ASM_EXTABLE(35b,100b)
22840 + _ASM_EXTABLE(36b,100b)
22841 + _ASM_EXTABLE(37b,100b)
22842 + _ASM_EXTABLE(99b,101b)
22843 + : "=&c"(size), "=&D" (d0), "=&S" (d1)
22844 + : "1"(to), "2"(from), "0"(size)
22845 + : "eax", "edx", "memory");
22846 + return size;
22847 +}
22848 +
22849 +static unsigned long __size_overflow(3)
22850 __copy_user_zeroing_intel(void *to, const void __user *from, unsigned long size)
22851 {
22852 int d0, d1;
22853 __asm__ __volatile__(
22854 " .align 2,0x90\n"
22855 - "0: movl 32(%4), %%eax\n"
22856 + "0: "__copyuser_seg" movl 32(%4), %%eax\n"
22857 " cmpl $67, %0\n"
22858 " jbe 2f\n"
22859 - "1: movl 64(%4), %%eax\n"
22860 + "1: "__copyuser_seg" movl 64(%4), %%eax\n"
22861 " .align 2,0x90\n"
22862 - "2: movl 0(%4), %%eax\n"
22863 - "21: movl 4(%4), %%edx\n"
22864 + "2: "__copyuser_seg" movl 0(%4), %%eax\n"
22865 + "21: "__copyuser_seg" movl 4(%4), %%edx\n"
22866 " movl %%eax, 0(%3)\n"
22867 " movl %%edx, 4(%3)\n"
22868 - "3: movl 8(%4), %%eax\n"
22869 - "31: movl 12(%4),%%edx\n"
22870 + "3: "__copyuser_seg" movl 8(%4), %%eax\n"
22871 + "31: "__copyuser_seg" movl 12(%4),%%edx\n"
22872 " movl %%eax, 8(%3)\n"
22873 " movl %%edx, 12(%3)\n"
22874 - "4: movl 16(%4), %%eax\n"
22875 - "41: movl 20(%4), %%edx\n"
22876 + "4: "__copyuser_seg" movl 16(%4), %%eax\n"
22877 + "41: "__copyuser_seg" movl 20(%4), %%edx\n"
22878 " movl %%eax, 16(%3)\n"
22879 " movl %%edx, 20(%3)\n"
22880 - "10: movl 24(%4), %%eax\n"
22881 - "51: movl 28(%4), %%edx\n"
22882 + "10: "__copyuser_seg" movl 24(%4), %%eax\n"
22883 + "51: "__copyuser_seg" movl 28(%4), %%edx\n"
22884 " movl %%eax, 24(%3)\n"
22885 " movl %%edx, 28(%3)\n"
22886 - "11: movl 32(%4), %%eax\n"
22887 - "61: movl 36(%4), %%edx\n"
22888 + "11: "__copyuser_seg" movl 32(%4), %%eax\n"
22889 + "61: "__copyuser_seg" movl 36(%4), %%edx\n"
22890 " movl %%eax, 32(%3)\n"
22891 " movl %%edx, 36(%3)\n"
22892 - "12: movl 40(%4), %%eax\n"
22893 - "71: movl 44(%4), %%edx\n"
22894 + "12: "__copyuser_seg" movl 40(%4), %%eax\n"
22895 + "71: "__copyuser_seg" movl 44(%4), %%edx\n"
22896 " movl %%eax, 40(%3)\n"
22897 " movl %%edx, 44(%3)\n"
22898 - "13: movl 48(%4), %%eax\n"
22899 - "81: movl 52(%4), %%edx\n"
22900 + "13: "__copyuser_seg" movl 48(%4), %%eax\n"
22901 + "81: "__copyuser_seg" movl 52(%4), %%edx\n"
22902 " movl %%eax, 48(%3)\n"
22903 " movl %%edx, 52(%3)\n"
22904 - "14: movl 56(%4), %%eax\n"
22905 - "91: movl 60(%4), %%edx\n"
22906 + "14: "__copyuser_seg" movl 56(%4), %%eax\n"
22907 + "91: "__copyuser_seg" movl 60(%4), %%edx\n"
22908 " movl %%eax, 56(%3)\n"
22909 " movl %%edx, 60(%3)\n"
22910 " addl $-64, %0\n"
22911 @@ -252,9 +360,9 @@ __copy_user_zeroing_intel(void *to, const void __user *from, unsigned long size)
22912 " shrl $2, %0\n"
22913 " andl $3, %%eax\n"
22914 " cld\n"
22915 - "6: rep; movsl\n"
22916 + "6: rep; "__copyuser_seg" movsl\n"
22917 " movl %%eax,%0\n"
22918 - "7: rep; movsb\n"
22919 + "7: rep; "__copyuser_seg" movsb\n"
22920 "8:\n"
22921 ".section .fixup,\"ax\"\n"
22922 "9: lea 0(%%eax,%0,4),%0\n"
22923 @@ -297,48 +405,48 @@ __copy_user_zeroing_intel(void *to, const void __user *from, unsigned long size)
22924 * hyoshiok@miraclelinux.com
22925 */
22926
22927 -static unsigned long __copy_user_zeroing_intel_nocache(void *to,
22928 +static unsigned long __size_overflow(3) __copy_user_zeroing_intel_nocache(void *to,
22929 const void __user *from, unsigned long size)
22930 {
22931 int d0, d1;
22932
22933 __asm__ __volatile__(
22934 " .align 2,0x90\n"
22935 - "0: movl 32(%4), %%eax\n"
22936 + "0: "__copyuser_seg" movl 32(%4), %%eax\n"
22937 " cmpl $67, %0\n"
22938 " jbe 2f\n"
22939 - "1: movl 64(%4), %%eax\n"
22940 + "1: "__copyuser_seg" movl 64(%4), %%eax\n"
22941 " .align 2,0x90\n"
22942 - "2: movl 0(%4), %%eax\n"
22943 - "21: movl 4(%4), %%edx\n"
22944 + "2: "__copyuser_seg" movl 0(%4), %%eax\n"
22945 + "21: "__copyuser_seg" movl 4(%4), %%edx\n"
22946 " movnti %%eax, 0(%3)\n"
22947 " movnti %%edx, 4(%3)\n"
22948 - "3: movl 8(%4), %%eax\n"
22949 - "31: movl 12(%4),%%edx\n"
22950 + "3: "__copyuser_seg" movl 8(%4), %%eax\n"
22951 + "31: "__copyuser_seg" movl 12(%4),%%edx\n"
22952 " movnti %%eax, 8(%3)\n"
22953 " movnti %%edx, 12(%3)\n"
22954 - "4: movl 16(%4), %%eax\n"
22955 - "41: movl 20(%4), %%edx\n"
22956 + "4: "__copyuser_seg" movl 16(%4), %%eax\n"
22957 + "41: "__copyuser_seg" movl 20(%4), %%edx\n"
22958 " movnti %%eax, 16(%3)\n"
22959 " movnti %%edx, 20(%3)\n"
22960 - "10: movl 24(%4), %%eax\n"
22961 - "51: movl 28(%4), %%edx\n"
22962 + "10: "__copyuser_seg" movl 24(%4), %%eax\n"
22963 + "51: "__copyuser_seg" movl 28(%4), %%edx\n"
22964 " movnti %%eax, 24(%3)\n"
22965 " movnti %%edx, 28(%3)\n"
22966 - "11: movl 32(%4), %%eax\n"
22967 - "61: movl 36(%4), %%edx\n"
22968 + "11: "__copyuser_seg" movl 32(%4), %%eax\n"
22969 + "61: "__copyuser_seg" movl 36(%4), %%edx\n"
22970 " movnti %%eax, 32(%3)\n"
22971 " movnti %%edx, 36(%3)\n"
22972 - "12: movl 40(%4), %%eax\n"
22973 - "71: movl 44(%4), %%edx\n"
22974 + "12: "__copyuser_seg" movl 40(%4), %%eax\n"
22975 + "71: "__copyuser_seg" movl 44(%4), %%edx\n"
22976 " movnti %%eax, 40(%3)\n"
22977 " movnti %%edx, 44(%3)\n"
22978 - "13: movl 48(%4), %%eax\n"
22979 - "81: movl 52(%4), %%edx\n"
22980 + "13: "__copyuser_seg" movl 48(%4), %%eax\n"
22981 + "81: "__copyuser_seg" movl 52(%4), %%edx\n"
22982 " movnti %%eax, 48(%3)\n"
22983 " movnti %%edx, 52(%3)\n"
22984 - "14: movl 56(%4), %%eax\n"
22985 - "91: movl 60(%4), %%edx\n"
22986 + "14: "__copyuser_seg" movl 56(%4), %%eax\n"
22987 + "91: "__copyuser_seg" movl 60(%4), %%edx\n"
22988 " movnti %%eax, 56(%3)\n"
22989 " movnti %%edx, 60(%3)\n"
22990 " addl $-64, %0\n"
22991 @@ -351,9 +459,9 @@ static unsigned long __copy_user_zeroing_intel_nocache(void *to,
22992 " shrl $2, %0\n"
22993 " andl $3, %%eax\n"
22994 " cld\n"
22995 - "6: rep; movsl\n"
22996 + "6: rep; "__copyuser_seg" movsl\n"
22997 " movl %%eax,%0\n"
22998 - "7: rep; movsb\n"
22999 + "7: rep; "__copyuser_seg" movsb\n"
23000 "8:\n"
23001 ".section .fixup,\"ax\"\n"
23002 "9: lea 0(%%eax,%0,4),%0\n"
23003 @@ -391,48 +499,48 @@ static unsigned long __copy_user_zeroing_intel_nocache(void *to,
23004 return size;
23005 }
23006
23007 -static unsigned long __copy_user_intel_nocache(void *to,
23008 +static unsigned long __size_overflow(3) __copy_user_intel_nocache(void *to,
23009 const void __user *from, unsigned long size)
23010 {
23011 int d0, d1;
23012
23013 __asm__ __volatile__(
23014 " .align 2,0x90\n"
23015 - "0: movl 32(%4), %%eax\n"
23016 + "0: "__copyuser_seg" movl 32(%4), %%eax\n"
23017 " cmpl $67, %0\n"
23018 " jbe 2f\n"
23019 - "1: movl 64(%4), %%eax\n"
23020 + "1: "__copyuser_seg" movl 64(%4), %%eax\n"
23021 " .align 2,0x90\n"
23022 - "2: movl 0(%4), %%eax\n"
23023 - "21: movl 4(%4), %%edx\n"
23024 + "2: "__copyuser_seg" movl 0(%4), %%eax\n"
23025 + "21: "__copyuser_seg" movl 4(%4), %%edx\n"
23026 " movnti %%eax, 0(%3)\n"
23027 " movnti %%edx, 4(%3)\n"
23028 - "3: movl 8(%4), %%eax\n"
23029 - "31: movl 12(%4),%%edx\n"
23030 + "3: "__copyuser_seg" movl 8(%4), %%eax\n"
23031 + "31: "__copyuser_seg" movl 12(%4),%%edx\n"
23032 " movnti %%eax, 8(%3)\n"
23033 " movnti %%edx, 12(%3)\n"
23034 - "4: movl 16(%4), %%eax\n"
23035 - "41: movl 20(%4), %%edx\n"
23036 + "4: "__copyuser_seg" movl 16(%4), %%eax\n"
23037 + "41: "__copyuser_seg" movl 20(%4), %%edx\n"
23038 " movnti %%eax, 16(%3)\n"
23039 " movnti %%edx, 20(%3)\n"
23040 - "10: movl 24(%4), %%eax\n"
23041 - "51: movl 28(%4), %%edx\n"
23042 + "10: "__copyuser_seg" movl 24(%4), %%eax\n"
23043 + "51: "__copyuser_seg" movl 28(%4), %%edx\n"
23044 " movnti %%eax, 24(%3)\n"
23045 " movnti %%edx, 28(%3)\n"
23046 - "11: movl 32(%4), %%eax\n"
23047 - "61: movl 36(%4), %%edx\n"
23048 + "11: "__copyuser_seg" movl 32(%4), %%eax\n"
23049 + "61: "__copyuser_seg" movl 36(%4), %%edx\n"
23050 " movnti %%eax, 32(%3)\n"
23051 " movnti %%edx, 36(%3)\n"
23052 - "12: movl 40(%4), %%eax\n"
23053 - "71: movl 44(%4), %%edx\n"
23054 + "12: "__copyuser_seg" movl 40(%4), %%eax\n"
23055 + "71: "__copyuser_seg" movl 44(%4), %%edx\n"
23056 " movnti %%eax, 40(%3)\n"
23057 " movnti %%edx, 44(%3)\n"
23058 - "13: movl 48(%4), %%eax\n"
23059 - "81: movl 52(%4), %%edx\n"
23060 + "13: "__copyuser_seg" movl 48(%4), %%eax\n"
23061 + "81: "__copyuser_seg" movl 52(%4), %%edx\n"
23062 " movnti %%eax, 48(%3)\n"
23063 " movnti %%edx, 52(%3)\n"
23064 - "14: movl 56(%4), %%eax\n"
23065 - "91: movl 60(%4), %%edx\n"
23066 + "14: "__copyuser_seg" movl 56(%4), %%eax\n"
23067 + "91: "__copyuser_seg" movl 60(%4), %%edx\n"
23068 " movnti %%eax, 56(%3)\n"
23069 " movnti %%edx, 60(%3)\n"
23070 " addl $-64, %0\n"
23071 @@ -445,9 +553,9 @@ static unsigned long __copy_user_intel_nocache(void *to,
23072 " shrl $2, %0\n"
23073 " andl $3, %%eax\n"
23074 " cld\n"
23075 - "6: rep; movsl\n"
23076 + "6: rep; "__copyuser_seg" movsl\n"
23077 " movl %%eax,%0\n"
23078 - "7: rep; movsb\n"
23079 + "7: rep; "__copyuser_seg" movsb\n"
23080 "8:\n"
23081 ".section .fixup,\"ax\"\n"
23082 "9: lea 0(%%eax,%0,4),%0\n"
23083 @@ -487,32 +595,36 @@ static unsigned long __copy_user_intel_nocache(void *to,
23084 */
23085 unsigned long __copy_user_zeroing_intel(void *to, const void __user *from,
23086 unsigned long size);
23087 -unsigned long __copy_user_intel(void __user *to, const void *from,
23088 +unsigned long __generic_copy_to_user_intel(void __user *to, const void *from,
23089 + unsigned long size);
23090 +unsigned long __generic_copy_from_user_intel(void *to, const void __user *from,
23091 unsigned long size);
23092 unsigned long __copy_user_zeroing_intel_nocache(void *to,
23093 const void __user *from, unsigned long size);
23094 #endif /* CONFIG_X86_INTEL_USERCOPY */
23095
23096 /* Generic arbitrary sized copy. */
23097 -#define __copy_user(to, from, size) \
23098 +#define __copy_user(to, from, size, prefix, set, restore) \
23099 do { \
23100 int __d0, __d1, __d2; \
23101 __asm__ __volatile__( \
23102 + set \
23103 " cmp $7,%0\n" \
23104 " jbe 1f\n" \
23105 " movl %1,%0\n" \
23106 " negl %0\n" \
23107 " andl $7,%0\n" \
23108 " subl %0,%3\n" \
23109 - "4: rep; movsb\n" \
23110 + "4: rep; "prefix"movsb\n" \
23111 " movl %3,%0\n" \
23112 " shrl $2,%0\n" \
23113 " andl $3,%3\n" \
23114 " .align 2,0x90\n" \
23115 - "0: rep; movsl\n" \
23116 + "0: rep; "prefix"movsl\n" \
23117 " movl %3,%0\n" \
23118 - "1: rep; movsb\n" \
23119 + "1: rep; "prefix"movsb\n" \
23120 "2:\n" \
23121 + restore \
23122 ".section .fixup,\"ax\"\n" \
23123 "5: addl %3,%0\n" \
23124 " jmp 2b\n" \
23125 @@ -537,14 +649,14 @@ do { \
23126 " negl %0\n" \
23127 " andl $7,%0\n" \
23128 " subl %0,%3\n" \
23129 - "4: rep; movsb\n" \
23130 + "4: rep; "__copyuser_seg"movsb\n" \
23131 " movl %3,%0\n" \
23132 " shrl $2,%0\n" \
23133 " andl $3,%3\n" \
23134 " .align 2,0x90\n" \
23135 - "0: rep; movsl\n" \
23136 + "0: rep; "__copyuser_seg"movsl\n" \
23137 " movl %3,%0\n" \
23138 - "1: rep; movsb\n" \
23139 + "1: rep; "__copyuser_seg"movsb\n" \
23140 "2:\n" \
23141 ".section .fixup,\"ax\"\n" \
23142 "5: addl %3,%0\n" \
23143 @@ -627,9 +739,9 @@ survive:
23144 }
23145 #endif
23146 if (movsl_is_ok(to, from, n))
23147 - __copy_user(to, from, n);
23148 + __copy_user(to, from, n, "", __COPYUSER_SET_ES, __COPYUSER_RESTORE_ES);
23149 else
23150 - n = __copy_user_intel(to, from, n);
23151 + n = __generic_copy_to_user_intel(to, from, n);
23152 return n;
23153 }
23154 EXPORT_SYMBOL(__copy_to_user_ll);
23155 @@ -649,10 +761,9 @@ unsigned long __copy_from_user_ll_nozero(void *to, const void __user *from,
23156 unsigned long n)
23157 {
23158 if (movsl_is_ok(to, from, n))
23159 - __copy_user(to, from, n);
23160 + __copy_user(to, from, n, __copyuser_seg, "", "");
23161 else
23162 - n = __copy_user_intel((void __user *)to,
23163 - (const void *)from, n);
23164 + n = __generic_copy_from_user_intel(to, from, n);
23165 return n;
23166 }
23167 EXPORT_SYMBOL(__copy_from_user_ll_nozero);
23168 @@ -679,65 +790,50 @@ unsigned long __copy_from_user_ll_nocache_nozero(void *to, const void __user *fr
23169 if (n > 64 && cpu_has_xmm2)
23170 n = __copy_user_intel_nocache(to, from, n);
23171 else
23172 - __copy_user(to, from, n);
23173 + __copy_user(to, from, n, __copyuser_seg, "", "");
23174 #else
23175 - __copy_user(to, from, n);
23176 + __copy_user(to, from, n, __copyuser_seg, "", "");
23177 #endif
23178 return n;
23179 }
23180 EXPORT_SYMBOL(__copy_from_user_ll_nocache_nozero);
23181
23182 -/**
23183 - * copy_to_user: - Copy a block of data into user space.
23184 - * @to: Destination address, in user space.
23185 - * @from: Source address, in kernel space.
23186 - * @n: Number of bytes to copy.
23187 - *
23188 - * Context: User context only. This function may sleep.
23189 - *
23190 - * Copy data from kernel space to user space.
23191 - *
23192 - * Returns number of bytes that could not be copied.
23193 - * On success, this will be zero.
23194 - */
23195 -unsigned long
23196 -copy_to_user(void __user *to, const void *from, unsigned long n)
23197 -{
23198 - if (access_ok(VERIFY_WRITE, to, n))
23199 - n = __copy_to_user(to, from, n);
23200 - return n;
23201 -}
23202 -EXPORT_SYMBOL(copy_to_user);
23203 -
23204 -/**
23205 - * copy_from_user: - Copy a block of data from user space.
23206 - * @to: Destination address, in kernel space.
23207 - * @from: Source address, in user space.
23208 - * @n: Number of bytes to copy.
23209 - *
23210 - * Context: User context only. This function may sleep.
23211 - *
23212 - * Copy data from user space to kernel space.
23213 - *
23214 - * Returns number of bytes that could not be copied.
23215 - * On success, this will be zero.
23216 - *
23217 - * If some data could not be copied, this function will pad the copied
23218 - * data to the requested size using zero bytes.
23219 - */
23220 -unsigned long
23221 -_copy_from_user(void *to, const void __user *from, unsigned long n)
23222 -{
23223 - if (access_ok(VERIFY_READ, from, n))
23224 - n = __copy_from_user(to, from, n);
23225 - else
23226 - memset(to, 0, n);
23227 - return n;
23228 -}
23229 -EXPORT_SYMBOL(_copy_from_user);
23230 -
23231 void copy_from_user_overflow(void)
23232 {
23233 WARN(1, "Buffer overflow detected!\n");
23234 }
23235 EXPORT_SYMBOL(copy_from_user_overflow);
23236 +
23237 +void copy_to_user_overflow(void)
23238 +{
23239 + WARN(1, "Buffer overflow detected!\n");
23240 +}
23241 +EXPORT_SYMBOL(copy_to_user_overflow);
23242 +
23243 +#ifdef CONFIG_PAX_MEMORY_UDEREF
23244 +void __set_fs(mm_segment_t x)
23245 +{
23246 + switch (x.seg) {
23247 + case 0:
23248 + loadsegment(gs, 0);
23249 + break;
23250 + case TASK_SIZE_MAX:
23251 + loadsegment(gs, __USER_DS);
23252 + break;
23253 + case -1UL:
23254 + loadsegment(gs, __KERNEL_DS);
23255 + break;
23256 + default:
23257 + BUG();
23258 + }
23259 + return;
23260 +}
23261 +EXPORT_SYMBOL(__set_fs);
23262 +
23263 +void set_fs(mm_segment_t x)
23264 +{
23265 + current_thread_info()->addr_limit = x;
23266 + __set_fs(x);
23267 +}
23268 +EXPORT_SYMBOL(set_fs);
23269 +#endif
23270 diff --git a/arch/x86/lib/usercopy_64.c b/arch/x86/lib/usercopy_64.c
23271 index e5b130b..6690d31 100644
23272 --- a/arch/x86/lib/usercopy_64.c
23273 +++ b/arch/x86/lib/usercopy_64.c
23274 @@ -16,6 +16,12 @@ unsigned long __clear_user(void __user *addr, unsigned long size)
23275 {
23276 long __d0;
23277 might_fault();
23278 +
23279 +#ifdef CONFIG_PAX_MEMORY_UDEREF
23280 + if ((unsigned long)addr < PAX_USER_SHADOW_BASE)
23281 + addr += PAX_USER_SHADOW_BASE;
23282 +#endif
23283 +
23284 /* no memory constraint because it doesn't change any memory gcc knows
23285 about */
23286 asm volatile(
23287 @@ -52,12 +58,20 @@ unsigned long clear_user(void __user *to, unsigned long n)
23288 }
23289 EXPORT_SYMBOL(clear_user);
23290
23291 -unsigned long copy_in_user(void __user *to, const void __user *from, unsigned len)
23292 +unsigned long copy_in_user(void __user *to, const void __user *from, unsigned long len)
23293 {
23294 - if (access_ok(VERIFY_WRITE, to, len) && access_ok(VERIFY_READ, from, len)) {
23295 - return copy_user_generic((__force void *)to, (__force void *)from, len);
23296 - }
23297 - return len;
23298 + if (access_ok(VERIFY_WRITE, to, len) && access_ok(VERIFY_READ, from, len)) {
23299 +
23300 +#ifdef CONFIG_PAX_MEMORY_UDEREF
23301 + if ((unsigned long)to < PAX_USER_SHADOW_BASE)
23302 + to += PAX_USER_SHADOW_BASE;
23303 + if ((unsigned long)from < PAX_USER_SHADOW_BASE)
23304 + from += PAX_USER_SHADOW_BASE;
23305 +#endif
23306 +
23307 + return copy_user_generic((void __force_kernel *)to, (void __force_kernel *)from, len);
23308 + }
23309 + return len;
23310 }
23311 EXPORT_SYMBOL(copy_in_user);
23312
23313 @@ -67,7 +81,7 @@ EXPORT_SYMBOL(copy_in_user);
23314 * it is not necessary to optimize tail handling.
23315 */
23316 unsigned long
23317 -copy_user_handle_tail(char *to, char *from, unsigned len, unsigned zerorest)
23318 +copy_user_handle_tail(char __user *to, char __user *from, unsigned long len, unsigned zerorest)
23319 {
23320 char c;
23321 unsigned zero_len;
23322 @@ -84,3 +98,15 @@ copy_user_handle_tail(char *to, char *from, unsigned len, unsigned zerorest)
23323 break;
23324 return len;
23325 }
23326 +
23327 +void copy_from_user_overflow(void)
23328 +{
23329 + WARN(1, "Buffer overflow detected!\n");
23330 +}
23331 +EXPORT_SYMBOL(copy_from_user_overflow);
23332 +
23333 +void copy_to_user_overflow(void)
23334 +{
23335 + WARN(1, "Buffer overflow detected!\n");
23336 +}
23337 +EXPORT_SYMBOL(copy_to_user_overflow);
23338 diff --git a/arch/x86/mm/extable.c b/arch/x86/mm/extable.c
23339 index 903ec1e..833f340 100644
23340 --- a/arch/x86/mm/extable.c
23341 +++ b/arch/x86/mm/extable.c
23342 @@ -6,12 +6,25 @@
23343 static inline unsigned long
23344 ex_insn_addr(const struct exception_table_entry *x)
23345 {
23346 - return (unsigned long)&x->insn + x->insn;
23347 +//printk(KERN_ERR "fixup %p insn:%x fixup:%x\n", x, x->insn, x->fixup);
23348 + unsigned long reloc = 0;
23349 +
23350 +#if defined(CONFIG_PAX_KERNEXEC) && defined(CONFIG_X86_32)
23351 + reloc = ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR;
23352 +#endif
23353 +
23354 + return (unsigned long)&x->insn + x->insn + reloc;
23355 }
23356 static inline unsigned long
23357 ex_fixup_addr(const struct exception_table_entry *x)
23358 {
23359 - return (unsigned long)&x->fixup + x->fixup;
23360 + unsigned long reloc = 0;
23361 +
23362 +#if defined(CONFIG_PAX_KERNEXEC) && defined(CONFIG_X86_32)
23363 + reloc = ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR;
23364 +#endif
23365 +
23366 + return (unsigned long)&x->fixup + x->fixup + reloc;
23367 }
23368
23369 int fixup_exception(struct pt_regs *regs)
23370 @@ -20,7 +33,7 @@ int fixup_exception(struct pt_regs *regs)
23371 unsigned long new_ip;
23372
23373 #ifdef CONFIG_PNPBIOS
23374 - if (unlikely(SEGMENT_IS_PNP_CODE(regs->cs))) {
23375 + if (unlikely(!v8086_mode(regs) && SEGMENT_IS_PNP_CODE(regs->cs))) {
23376 extern u32 pnp_bios_fault_eip, pnp_bios_fault_esp;
23377 extern u32 pnp_bios_is_utter_crap;
23378 pnp_bios_is_utter_crap = 1;
23379 @@ -34,6 +47,7 @@ int fixup_exception(struct pt_regs *regs)
23380 #endif
23381
23382 fixup = search_exception_tables(regs->ip);
23383 +//printk(KERN_ERR "fixup %p %lx\n", fixup, regs->ip);
23384 if (fixup) {
23385 new_ip = ex_fixup_addr(fixup);
23386
23387 diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
23388 index 76dcd9d..e9dffde 100644
23389 --- a/arch/x86/mm/fault.c
23390 +++ b/arch/x86/mm/fault.c
23391 @@ -13,11 +13,18 @@
23392 #include <linux/perf_event.h> /* perf_sw_event */
23393 #include <linux/hugetlb.h> /* hstate_index_to_shift */
23394 #include <linux/prefetch.h> /* prefetchw */
23395 +#include <linux/unistd.h>
23396 +#include <linux/compiler.h>
23397
23398 #include <asm/traps.h> /* dotraplinkage, ... */
23399 #include <asm/pgalloc.h> /* pgd_*(), ... */
23400 #include <asm/kmemcheck.h> /* kmemcheck_*(), ... */
23401 #include <asm/fixmap.h> /* VSYSCALL_START */
23402 +#include <asm/tlbflush.h>
23403 +
23404 +#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
23405 +#include <asm/stacktrace.h>
23406 +#endif
23407
23408 /*
23409 * Page fault error code bits:
23410 @@ -55,7 +62,7 @@ static inline int __kprobes notify_page_fault(struct pt_regs *regs)
23411 int ret = 0;
23412
23413 /* kprobe_running() needs smp_processor_id() */
23414 - if (kprobes_built_in() && !user_mode_vm(regs)) {
23415 + if (kprobes_built_in() && !user_mode(regs)) {
23416 preempt_disable();
23417 if (kprobe_running() && kprobe_fault_handler(regs, 14))
23418 ret = 1;
23419 @@ -116,7 +123,10 @@ check_prefetch_opcode(struct pt_regs *regs, unsigned char *instr,
23420 return !instr_lo || (instr_lo>>1) == 1;
23421 case 0x00:
23422 /* Prefetch instruction is 0x0F0D or 0x0F18 */
23423 - if (probe_kernel_address(instr, opcode))
23424 + if (user_mode(regs)) {
23425 + if (__copy_from_user_inatomic(&opcode, (unsigned char __force_user *)(instr), 1))
23426 + return 0;
23427 + } else if (probe_kernel_address(instr, opcode))
23428 return 0;
23429
23430 *prefetch = (instr_lo == 0xF) &&
23431 @@ -150,7 +160,10 @@ is_prefetch(struct pt_regs *regs, unsigned long error_code, unsigned long addr)
23432 while (instr < max_instr) {
23433 unsigned char opcode;
23434
23435 - if (probe_kernel_address(instr, opcode))
23436 + if (user_mode(regs)) {
23437 + if (__copy_from_user_inatomic(&opcode, (unsigned char __force_user *)(instr), 1))
23438 + break;
23439 + } else if (probe_kernel_address(instr, opcode))
23440 break;
23441
23442 instr++;
23443 @@ -181,6 +194,34 @@ force_sig_info_fault(int si_signo, int si_code, unsigned long address,
23444 force_sig_info(si_signo, &info, tsk);
23445 }
23446
23447 +#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
23448 +static bool pax_is_fetch_fault(struct pt_regs *regs, unsigned long error_code, unsigned long address);
23449 +#endif
23450 +
23451 +#ifdef CONFIG_PAX_EMUTRAMP
23452 +static int pax_handle_fetch_fault(struct pt_regs *regs);
23453 +#endif
23454 +
23455 +#ifdef CONFIG_PAX_PAGEEXEC
23456 +static inline pmd_t * pax_get_pmd(struct mm_struct *mm, unsigned long address)
23457 +{
23458 + pgd_t *pgd;
23459 + pud_t *pud;
23460 + pmd_t *pmd;
23461 +
23462 + pgd = pgd_offset(mm, address);
23463 + if (!pgd_present(*pgd))
23464 + return NULL;
23465 + pud = pud_offset(pgd, address);
23466 + if (!pud_present(*pud))
23467 + return NULL;
23468 + pmd = pmd_offset(pud, address);
23469 + if (!pmd_present(*pmd))
23470 + return NULL;
23471 + return pmd;
23472 +}
23473 +#endif
23474 +
23475 DEFINE_SPINLOCK(pgd_lock);
23476 LIST_HEAD(pgd_list);
23477
23478 @@ -231,10 +272,22 @@ void vmalloc_sync_all(void)
23479 for (address = VMALLOC_START & PMD_MASK;
23480 address >= TASK_SIZE && address < FIXADDR_TOP;
23481 address += PMD_SIZE) {
23482 +
23483 +#ifdef CONFIG_PAX_PER_CPU_PGD
23484 + unsigned long cpu;
23485 +#else
23486 struct page *page;
23487 +#endif
23488
23489 spin_lock(&pgd_lock);
23490 +
23491 +#ifdef CONFIG_PAX_PER_CPU_PGD
23492 + for (cpu = 0; cpu < nr_cpu_ids; ++cpu) {
23493 + pgd_t *pgd = get_cpu_pgd(cpu);
23494 + pmd_t *ret;
23495 +#else
23496 list_for_each_entry(page, &pgd_list, lru) {
23497 + pgd_t *pgd = page_address(page);
23498 spinlock_t *pgt_lock;
23499 pmd_t *ret;
23500
23501 @@ -242,8 +295,13 @@ void vmalloc_sync_all(void)
23502 pgt_lock = &pgd_page_get_mm(page)->page_table_lock;
23503
23504 spin_lock(pgt_lock);
23505 - ret = vmalloc_sync_one(page_address(page), address);
23506 +#endif
23507 +
23508 + ret = vmalloc_sync_one(pgd, address);
23509 +
23510 +#ifndef CONFIG_PAX_PER_CPU_PGD
23511 spin_unlock(pgt_lock);
23512 +#endif
23513
23514 if (!ret)
23515 break;
23516 @@ -277,6 +335,11 @@ static noinline __kprobes int vmalloc_fault(unsigned long address)
23517 * an interrupt in the middle of a task switch..
23518 */
23519 pgd_paddr = read_cr3();
23520 +
23521 +#ifdef CONFIG_PAX_PER_CPU_PGD
23522 + BUG_ON(__pa(get_cpu_pgd(smp_processor_id())) != (pgd_paddr & PHYSICAL_PAGE_MASK));
23523 +#endif
23524 +
23525 pmd_k = vmalloc_sync_one(__va(pgd_paddr), address);
23526 if (!pmd_k)
23527 return -1;
23528 @@ -372,7 +435,14 @@ static noinline __kprobes int vmalloc_fault(unsigned long address)
23529 * happen within a race in page table update. In the later
23530 * case just flush:
23531 */
23532 +
23533 +#ifdef CONFIG_PAX_PER_CPU_PGD
23534 + BUG_ON(__pa(get_cpu_pgd(smp_processor_id())) != (read_cr3() & PHYSICAL_PAGE_MASK));
23535 + pgd = pgd_offset_cpu(smp_processor_id(), address);
23536 +#else
23537 pgd = pgd_offset(current->active_mm, address);
23538 +#endif
23539 +
23540 pgd_ref = pgd_offset_k(address);
23541 if (pgd_none(*pgd_ref))
23542 return -1;
23543 @@ -540,7 +610,7 @@ static int is_errata93(struct pt_regs *regs, unsigned long address)
23544 static int is_errata100(struct pt_regs *regs, unsigned long address)
23545 {
23546 #ifdef CONFIG_X86_64
23547 - if ((regs->cs == __USER32_CS || (regs->cs & (1<<2))) && (address >> 32))
23548 + if ((regs->cs == __USER32_CS || (regs->cs & SEGMENT_LDT)) && (address >> 32))
23549 return 1;
23550 #endif
23551 return 0;
23552 @@ -567,7 +637,7 @@ static int is_f00f_bug(struct pt_regs *regs, unsigned long address)
23553 }
23554
23555 static const char nx_warning[] = KERN_CRIT
23556 -"kernel tried to execute NX-protected page - exploit attempt? (uid: %d)\n";
23557 +"kernel tried to execute NX-protected page - exploit attempt? (uid: %d, task: %s, pid: %d)\n";
23558
23559 static void
23560 show_fault_oops(struct pt_regs *regs, unsigned long error_code,
23561 @@ -576,15 +646,26 @@ show_fault_oops(struct pt_regs *regs, unsigned long error_code,
23562 if (!oops_may_print())
23563 return;
23564
23565 - if (error_code & PF_INSTR) {
23566 + if ((__supported_pte_mask & _PAGE_NX) && (error_code & PF_INSTR)) {
23567 unsigned int level;
23568
23569 pte_t *pte = lookup_address(address, &level);
23570
23571 if (pte && pte_present(*pte) && !pte_exec(*pte))
23572 - printk(nx_warning, from_kuid(&init_user_ns, current_uid()));
23573 + printk(nx_warning, from_kuid(&init_user_ns, current_uid()), current->comm, task_pid_nr(current));
23574 }
23575
23576 +#ifdef CONFIG_PAX_KERNEXEC
23577 + if (init_mm.start_code <= address && address < init_mm.end_code) {
23578 + if (current->signal->curr_ip)
23579 + printk(KERN_ERR "PAX: From %pI4: %s:%d, uid/euid: %u/%u, attempted to modify kernel code\n",
23580 + &current->signal->curr_ip, current->comm, task_pid_nr(current), current_uid(), current_euid());
23581 + else
23582 + printk(KERN_ERR "PAX: %s:%d, uid/euid: %u/%u, attempted to modify kernel code\n",
23583 + current->comm, task_pid_nr(current), current_uid(), current_euid());
23584 + }
23585 +#endif
23586 +
23587 printk(KERN_ALERT "BUG: unable to handle kernel ");
23588 if (address < PAGE_SIZE)
23589 printk(KERN_CONT "NULL pointer dereference");
23590 @@ -748,6 +829,21 @@ __bad_area_nosemaphore(struct pt_regs *regs, unsigned long error_code,
23591 }
23592 #endif
23593
23594 +#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
23595 + if (pax_is_fetch_fault(regs, error_code, address)) {
23596 +
23597 +#ifdef CONFIG_PAX_EMUTRAMP
23598 + switch (pax_handle_fetch_fault(regs)) {
23599 + case 2:
23600 + return;
23601 + }
23602 +#endif
23603 +
23604 + pax_report_fault(regs, (void *)regs->ip, (void *)regs->sp);
23605 + do_group_exit(SIGKILL);
23606 + }
23607 +#endif
23608 +
23609 if (unlikely(show_unhandled_signals))
23610 show_signal_msg(regs, error_code, address, tsk);
23611
23612 @@ -844,7 +940,7 @@ do_sigbus(struct pt_regs *regs, unsigned long error_code, unsigned long address,
23613 if (fault & (VM_FAULT_HWPOISON|VM_FAULT_HWPOISON_LARGE)) {
23614 printk(KERN_ERR
23615 "MCE: Killing %s:%d due to hardware memory corruption fault at %lx\n",
23616 - tsk->comm, tsk->pid, address);
23617 + tsk->comm, task_pid_nr(tsk), address);
23618 code = BUS_MCEERR_AR;
23619 }
23620 #endif
23621 @@ -900,6 +996,99 @@ static int spurious_fault_check(unsigned long error_code, pte_t *pte)
23622 return 1;
23623 }
23624
23625 +#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_PAGEEXEC)
23626 +static int pax_handle_pageexec_fault(struct pt_regs *regs, struct mm_struct *mm, unsigned long address, unsigned long error_code)
23627 +{
23628 + pte_t *pte;
23629 + pmd_t *pmd;
23630 + spinlock_t *ptl;
23631 + unsigned char pte_mask;
23632 +
23633 + if ((__supported_pte_mask & _PAGE_NX) || (error_code & (PF_PROT|PF_USER)) != (PF_PROT|PF_USER) || v8086_mode(regs) ||
23634 + !(mm->pax_flags & MF_PAX_PAGEEXEC))
23635 + return 0;
23636 +
23637 + /* PaX: it's our fault, let's handle it if we can */
23638 +
23639 + /* PaX: take a look at read faults before acquiring any locks */
23640 + if (unlikely(!(error_code & PF_WRITE) && (regs->ip == address))) {
23641 + /* instruction fetch attempt from a protected page in user mode */
23642 + up_read(&mm->mmap_sem);
23643 +
23644 +#ifdef CONFIG_PAX_EMUTRAMP
23645 + switch (pax_handle_fetch_fault(regs)) {
23646 + case 2:
23647 + return 1;
23648 + }
23649 +#endif
23650 +
23651 + pax_report_fault(regs, (void *)regs->ip, (void *)regs->sp);
23652 + do_group_exit(SIGKILL);
23653 + }
23654 +
23655 + pmd = pax_get_pmd(mm, address);
23656 + if (unlikely(!pmd))
23657 + return 0;
23658 +
23659 + pte = pte_offset_map_lock(mm, pmd, address, &ptl);
23660 + if (unlikely(!(pte_val(*pte) & _PAGE_PRESENT) || pte_user(*pte))) {
23661 + pte_unmap_unlock(pte, ptl);
23662 + return 0;
23663 + }
23664 +
23665 + if (unlikely((error_code & PF_WRITE) && !pte_write(*pte))) {
23666 + /* write attempt to a protected page in user mode */
23667 + pte_unmap_unlock(pte, ptl);
23668 + return 0;
23669 + }
23670 +
23671 +#ifdef CONFIG_SMP
23672 + if (likely(address > get_limit(regs->cs) && cpu_isset(smp_processor_id(), mm->context.cpu_user_cs_mask)))
23673 +#else
23674 + if (likely(address > get_limit(regs->cs)))
23675 +#endif
23676 + {
23677 + set_pte(pte, pte_mkread(*pte));
23678 + __flush_tlb_one(address);
23679 + pte_unmap_unlock(pte, ptl);
23680 + up_read(&mm->mmap_sem);
23681 + return 1;
23682 + }
23683 +
23684 + pte_mask = _PAGE_ACCESSED | _PAGE_USER | ((error_code & PF_WRITE) << (_PAGE_BIT_DIRTY-1));
23685 +
23686 + /*
23687 + * PaX: fill DTLB with user rights and retry
23688 + */
23689 + __asm__ __volatile__ (
23690 + "orb %2,(%1)\n"
23691 +#if defined(CONFIG_M586) || defined(CONFIG_M586TSC)
23692 +/*
23693 + * PaX: let this uncommented 'invlpg' remind us on the behaviour of Intel's
23694 + * (and AMD's) TLBs. namely, they do not cache PTEs that would raise *any*
23695 + * page fault when examined during a TLB load attempt. this is true not only
23696 + * for PTEs holding a non-present entry but also present entries that will
23697 + * raise a page fault (such as those set up by PaX, or the copy-on-write
23698 + * mechanism). in effect it means that we do *not* need to flush the TLBs
23699 + * for our target pages since their PTEs are simply not in the TLBs at all.
23700 +
23701 + * the best thing in omitting it is that we gain around 15-20% speed in the
23702 + * fast path of the page fault handler and can get rid of tracing since we
23703 + * can no longer flush unintended entries.
23704 + */
23705 + "invlpg (%0)\n"
23706 +#endif
23707 + __copyuser_seg"testb $0,(%0)\n"
23708 + "xorb %3,(%1)\n"
23709 + :
23710 + : "r" (address), "r" (pte), "q" (pte_mask), "i" (_PAGE_USER)
23711 + : "memory", "cc");
23712 + pte_unmap_unlock(pte, ptl);
23713 + up_read(&mm->mmap_sem);
23714 + return 1;
23715 +}
23716 +#endif
23717 +
23718 /*
23719 * Handle a spurious fault caused by a stale TLB entry.
23720 *
23721 @@ -972,6 +1161,9 @@ int show_unhandled_signals = 1;
23722 static inline int
23723 access_error(unsigned long error_code, struct vm_area_struct *vma)
23724 {
23725 + if ((__supported_pte_mask & _PAGE_NX) && (error_code & PF_INSTR) && !(vma->vm_flags & VM_EXEC))
23726 + return 1;
23727 +
23728 if (error_code & PF_WRITE) {
23729 /* write, present and write, not present: */
23730 if (unlikely(!(vma->vm_flags & VM_WRITE)))
23731 @@ -1005,18 +1197,33 @@ do_page_fault(struct pt_regs *regs, unsigned long error_code)
23732 {
23733 struct vm_area_struct *vma;
23734 struct task_struct *tsk;
23735 - unsigned long address;
23736 struct mm_struct *mm;
23737 int fault;
23738 int write = error_code & PF_WRITE;
23739 unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE |
23740 (write ? FAULT_FLAG_WRITE : 0);
23741
23742 - tsk = current;
23743 - mm = tsk->mm;
23744 -
23745 /* Get the faulting address: */
23746 - address = read_cr2();
23747 + unsigned long address = read_cr2();
23748 +
23749 +#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
23750 + if (!user_mode(regs) && address < 2 * PAX_USER_SHADOW_BASE) {
23751 + if (!search_exception_tables(regs->ip)) {
23752 + printk(KERN_ERR "PAX: please report this to pageexec@freemail.hu\n");
23753 + bad_area_nosemaphore(regs, error_code, address);
23754 + return;
23755 + }
23756 + if (address < PAX_USER_SHADOW_BASE) {
23757 + printk(KERN_ERR "PAX: please report this to pageexec@freemail.hu\n");
23758 + printk(KERN_ERR "PAX: faulting IP: %pS\n", (void *)regs->ip);
23759 + show_trace_log_lvl(NULL, NULL, (void *)regs->sp, regs->bp, KERN_ERR);
23760 + } else
23761 + address -= PAX_USER_SHADOW_BASE;
23762 + }
23763 +#endif
23764 +
23765 + tsk = current;
23766 + mm = tsk->mm;
23767
23768 /*
23769 * Detect and handle instructions that would cause a page fault for
23770 @@ -1077,7 +1284,7 @@ do_page_fault(struct pt_regs *regs, unsigned long error_code)
23771 * User-mode registers count as a user access even for any
23772 * potential system fault or CPU buglet:
23773 */
23774 - if (user_mode_vm(regs)) {
23775 + if (user_mode(regs)) {
23776 local_irq_enable();
23777 error_code |= PF_USER;
23778 } else {
23779 @@ -1132,6 +1339,11 @@ retry:
23780 might_sleep();
23781 }
23782
23783 +#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_PAGEEXEC)
23784 + if (pax_handle_pageexec_fault(regs, mm, address, error_code))
23785 + return;
23786 +#endif
23787 +
23788 vma = find_vma(mm, address);
23789 if (unlikely(!vma)) {
23790 bad_area(regs, error_code, address);
23791 @@ -1143,18 +1355,24 @@ retry:
23792 bad_area(regs, error_code, address);
23793 return;
23794 }
23795 - if (error_code & PF_USER) {
23796 - /*
23797 - * Accessing the stack below %sp is always a bug.
23798 - * The large cushion allows instructions like enter
23799 - * and pusha to work. ("enter $65535, $31" pushes
23800 - * 32 pointers and then decrements %sp by 65535.)
23801 - */
23802 - if (unlikely(address + 65536 + 32 * sizeof(unsigned long) < regs->sp)) {
23803 - bad_area(regs, error_code, address);
23804 - return;
23805 - }
23806 + /*
23807 + * Accessing the stack below %sp is always a bug.
23808 + * The large cushion allows instructions like enter
23809 + * and pusha to work. ("enter $65535, $31" pushes
23810 + * 32 pointers and then decrements %sp by 65535.)
23811 + */
23812 + if (unlikely(address + 65536 + 32 * sizeof(unsigned long) < task_pt_regs(tsk)->sp)) {
23813 + bad_area(regs, error_code, address);
23814 + return;
23815 }
23816 +
23817 +#ifdef CONFIG_PAX_SEGMEXEC
23818 + if (unlikely((mm->pax_flags & MF_PAX_SEGMEXEC) && vma->vm_end - SEGMEXEC_TASK_SIZE - 1 < address - SEGMEXEC_TASK_SIZE - 1)) {
23819 + bad_area(regs, error_code, address);
23820 + return;
23821 + }
23822 +#endif
23823 +
23824 if (unlikely(expand_stack(vma, address))) {
23825 bad_area(regs, error_code, address);
23826 return;
23827 @@ -1209,3 +1427,292 @@ good_area:
23828
23829 up_read(&mm->mmap_sem);
23830 }
23831 +
23832 +#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
23833 +static bool pax_is_fetch_fault(struct pt_regs *regs, unsigned long error_code, unsigned long address)
23834 +{
23835 + struct mm_struct *mm = current->mm;
23836 + unsigned long ip = regs->ip;
23837 +
23838 + if (v8086_mode(regs))
23839 + ip = ((regs->cs & 0xffff) << 4) + (ip & 0xffff);
23840 +
23841 +#ifdef CONFIG_PAX_PAGEEXEC
23842 + if (mm->pax_flags & MF_PAX_PAGEEXEC) {
23843 + if ((__supported_pte_mask & _PAGE_NX) && (error_code & PF_INSTR))
23844 + return true;
23845 + if (!(error_code & (PF_PROT | PF_WRITE)) && ip == address)
23846 + return true;
23847 + return false;
23848 + }
23849 +#endif
23850 +
23851 +#ifdef CONFIG_PAX_SEGMEXEC
23852 + if (mm->pax_flags & MF_PAX_SEGMEXEC) {
23853 + if (!(error_code & (PF_PROT | PF_WRITE)) && (ip + SEGMEXEC_TASK_SIZE == address))
23854 + return true;
23855 + return false;
23856 + }
23857 +#endif
23858 +
23859 + return false;
23860 +}
23861 +#endif
23862 +
23863 +#ifdef CONFIG_PAX_EMUTRAMP
23864 +static int pax_handle_fetch_fault_32(struct pt_regs *regs)
23865 +{
23866 + int err;
23867 +
23868 + do { /* PaX: libffi trampoline emulation */
23869 + unsigned char mov, jmp;
23870 + unsigned int addr1, addr2;
23871 +
23872 +#ifdef CONFIG_X86_64
23873 + if ((regs->ip + 9) >> 32)
23874 + break;
23875 +#endif
23876 +
23877 + err = get_user(mov, (unsigned char __user *)regs->ip);
23878 + err |= get_user(addr1, (unsigned int __user *)(regs->ip + 1));
23879 + err |= get_user(jmp, (unsigned char __user *)(regs->ip + 5));
23880 + err |= get_user(addr2, (unsigned int __user *)(regs->ip + 6));
23881 +
23882 + if (err)
23883 + break;
23884 +
23885 + if (mov == 0xB8 && jmp == 0xE9) {
23886 + regs->ax = addr1;
23887 + regs->ip = (unsigned int)(regs->ip + addr2 + 10);
23888 + return 2;
23889 + }
23890 + } while (0);
23891 +
23892 + do { /* PaX: gcc trampoline emulation #1 */
23893 + unsigned char mov1, mov2;
23894 + unsigned short jmp;
23895 + unsigned int addr1, addr2;
23896 +
23897 +#ifdef CONFIG_X86_64
23898 + if ((regs->ip + 11) >> 32)
23899 + break;
23900 +#endif
23901 +
23902 + err = get_user(mov1, (unsigned char __user *)regs->ip);
23903 + err |= get_user(addr1, (unsigned int __user *)(regs->ip + 1));
23904 + err |= get_user(mov2, (unsigned char __user *)(regs->ip + 5));
23905 + err |= get_user(addr2, (unsigned int __user *)(regs->ip + 6));
23906 + err |= get_user(jmp, (unsigned short __user *)(regs->ip + 10));
23907 +
23908 + if (err)
23909 + break;
23910 +
23911 + if (mov1 == 0xB9 && mov2 == 0xB8 && jmp == 0xE0FF) {
23912 + regs->cx = addr1;
23913 + regs->ax = addr2;
23914 + regs->ip = addr2;
23915 + return 2;
23916 + }
23917 + } while (0);
23918 +
23919 + do { /* PaX: gcc trampoline emulation #2 */
23920 + unsigned char mov, jmp;
23921 + unsigned int addr1, addr2;
23922 +
23923 +#ifdef CONFIG_X86_64
23924 + if ((regs->ip + 9) >> 32)
23925 + break;
23926 +#endif
23927 +
23928 + err = get_user(mov, (unsigned char __user *)regs->ip);
23929 + err |= get_user(addr1, (unsigned int __user *)(regs->ip + 1));
23930 + err |= get_user(jmp, (unsigned char __user *)(regs->ip + 5));
23931 + err |= get_user(addr2, (unsigned int __user *)(regs->ip + 6));
23932 +
23933 + if (err)
23934 + break;
23935 +
23936 + if (mov == 0xB9 && jmp == 0xE9) {
23937 + regs->cx = addr1;
23938 + regs->ip = (unsigned int)(regs->ip + addr2 + 10);
23939 + return 2;
23940 + }
23941 + } while (0);
23942 +
23943 + return 1; /* PaX in action */
23944 +}
23945 +
23946 +#ifdef CONFIG_X86_64
23947 +static int pax_handle_fetch_fault_64(struct pt_regs *regs)
23948 +{
23949 + int err;
23950 +
23951 + do { /* PaX: libffi trampoline emulation */
23952 + unsigned short mov1, mov2, jmp1;
23953 + unsigned char stcclc, jmp2;
23954 + unsigned long addr1, addr2;
23955 +
23956 + err = get_user(mov1, (unsigned short __user *)regs->ip);
23957 + err |= get_user(addr1, (unsigned long __user *)(regs->ip + 2));
23958 + err |= get_user(mov2, (unsigned short __user *)(regs->ip + 10));
23959 + err |= get_user(addr2, (unsigned long __user *)(regs->ip + 12));
23960 + err |= get_user(stcclc, (unsigned char __user *)(regs->ip + 20));
23961 + err |= get_user(jmp1, (unsigned short __user *)(regs->ip + 21));
23962 + err |= get_user(jmp2, (unsigned char __user *)(regs->ip + 23));
23963 +
23964 + if (err)
23965 + break;
23966 +
23967 + if (mov1 == 0xBB49 && mov2 == 0xBA49 && (stcclc == 0xF8 || stcclc == 0xF9) && jmp1 == 0xFF49 && jmp2 == 0xE3) {
23968 + regs->r11 = addr1;
23969 + regs->r10 = addr2;
23970 + if (stcclc == 0xF8)
23971 + regs->flags &= ~X86_EFLAGS_CF;
23972 + else
23973 + regs->flags |= X86_EFLAGS_CF;
23974 + regs->ip = addr1;
23975 + return 2;
23976 + }
23977 + } while (0);
23978 +
23979 + do { /* PaX: gcc trampoline emulation #1 */
23980 + unsigned short mov1, mov2, jmp1;
23981 + unsigned char jmp2;
23982 + unsigned int addr1;
23983 + unsigned long addr2;
23984 +
23985 + err = get_user(mov1, (unsigned short __user *)regs->ip);
23986 + err |= get_user(addr1, (unsigned int __user *)(regs->ip + 2));
23987 + err |= get_user(mov2, (unsigned short __user *)(regs->ip + 6));
23988 + err |= get_user(addr2, (unsigned long __user *)(regs->ip + 8));
23989 + err |= get_user(jmp1, (unsigned short __user *)(regs->ip + 16));
23990 + err |= get_user(jmp2, (unsigned char __user *)(regs->ip + 18));
23991 +
23992 + if (err)
23993 + break;
23994 +
23995 + if (mov1 == 0xBB41 && mov2 == 0xBA49 && jmp1 == 0xFF49 && jmp2 == 0xE3) {
23996 + regs->r11 = addr1;
23997 + regs->r10 = addr2;
23998 + regs->ip = addr1;
23999 + return 2;
24000 + }
24001 + } while (0);
24002 +
24003 + do { /* PaX: gcc trampoline emulation #2 */
24004 + unsigned short mov1, mov2, jmp1;
24005 + unsigned char jmp2;
24006 + unsigned long addr1, addr2;
24007 +
24008 + err = get_user(mov1, (unsigned short __user *)regs->ip);
24009 + err |= get_user(addr1, (unsigned long __user *)(regs->ip + 2));
24010 + err |= get_user(mov2, (unsigned short __user *)(regs->ip + 10));
24011 + err |= get_user(addr2, (unsigned long __user *)(regs->ip + 12));
24012 + err |= get_user(jmp1, (unsigned short __user *)(regs->ip + 20));
24013 + err |= get_user(jmp2, (unsigned char __user *)(regs->ip + 22));
24014 +
24015 + if (err)
24016 + break;
24017 +
24018 + if (mov1 == 0xBB49 && mov2 == 0xBA49 && jmp1 == 0xFF49 && jmp2 == 0xE3) {
24019 + regs->r11 = addr1;
24020 + regs->r10 = addr2;
24021 + regs->ip = addr1;
24022 + return 2;
24023 + }
24024 + } while (0);
24025 +
24026 + return 1; /* PaX in action */
24027 +}
24028 +#endif
24029 +
24030 +/*
24031 + * PaX: decide what to do with offenders (regs->ip = fault address)
24032 + *
24033 + * returns 1 when task should be killed
24034 + * 2 when gcc trampoline was detected
24035 + */
24036 +static int pax_handle_fetch_fault(struct pt_regs *regs)
24037 +{
24038 + if (v8086_mode(regs))
24039 + return 1;
24040 +
24041 + if (!(current->mm->pax_flags & MF_PAX_EMUTRAMP))
24042 + return 1;
24043 +
24044 +#ifdef CONFIG_X86_32
24045 + return pax_handle_fetch_fault_32(regs);
24046 +#else
24047 + if (regs->cs == __USER32_CS || (regs->cs & SEGMENT_LDT))
24048 + return pax_handle_fetch_fault_32(regs);
24049 + else
24050 + return pax_handle_fetch_fault_64(regs);
24051 +#endif
24052 +}
24053 +#endif
24054 +
24055 +#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
24056 +void pax_report_insns(struct pt_regs *regs, void *pc, void *sp)
24057 +{
24058 + long i;
24059 +
24060 + printk(KERN_ERR "PAX: bytes at PC: ");
24061 + for (i = 0; i < 20; i++) {
24062 + unsigned char c;
24063 + if (get_user(c, (unsigned char __force_user *)pc+i))
24064 + printk(KERN_CONT "?? ");
24065 + else
24066 + printk(KERN_CONT "%02x ", c);
24067 + }
24068 + printk("\n");
24069 +
24070 + printk(KERN_ERR "PAX: bytes at SP-%lu: ", (unsigned long)sizeof(long));
24071 + for (i = -1; i < 80 / (long)sizeof(long); i++) {
24072 + unsigned long c;
24073 + if (get_user(c, (unsigned long __force_user *)sp+i)) {
24074 +#ifdef CONFIG_X86_32
24075 + printk(KERN_CONT "???????? ");
24076 +#else
24077 + if ((regs->cs == __USER32_CS || (regs->cs & SEGMENT_LDT)))
24078 + printk(KERN_CONT "???????? ???????? ");
24079 + else
24080 + printk(KERN_CONT "???????????????? ");
24081 +#endif
24082 + } else {
24083 +#ifdef CONFIG_X86_64
24084 + if ((regs->cs == __USER32_CS || (regs->cs & SEGMENT_LDT))) {
24085 + printk(KERN_CONT "%08x ", (unsigned int)c);
24086 + printk(KERN_CONT "%08x ", (unsigned int)(c >> 32));
24087 + } else
24088 +#endif
24089 + printk(KERN_CONT "%0*lx ", 2 * (int)sizeof(long), c);
24090 + }
24091 + }
24092 + printk("\n");
24093 +}
24094 +#endif
24095 +
24096 +/**
24097 + * probe_kernel_write(): safely attempt to write to a location
24098 + * @dst: address to write to
24099 + * @src: pointer to the data that shall be written
24100 + * @size: size of the data chunk
24101 + *
24102 + * Safely write to address @dst from the buffer at @src. If a kernel fault
24103 + * happens, handle that and return -EFAULT.
24104 + */
24105 +long notrace probe_kernel_write(void *dst, const void *src, size_t size)
24106 +{
24107 + long ret;
24108 + mm_segment_t old_fs = get_fs();
24109 +
24110 + set_fs(KERNEL_DS);
24111 + pagefault_disable();
24112 + pax_open_kernel();
24113 + ret = __copy_to_user_inatomic((void __force_user *)dst, src, size);
24114 + pax_close_kernel();
24115 + pagefault_enable();
24116 + set_fs(old_fs);
24117 +
24118 + return ret ? -EFAULT : 0;
24119 +}
24120 diff --git a/arch/x86/mm/gup.c b/arch/x86/mm/gup.c
24121 index dd74e46..7d26398 100644
24122 --- a/arch/x86/mm/gup.c
24123 +++ b/arch/x86/mm/gup.c
24124 @@ -255,7 +255,7 @@ int __get_user_pages_fast(unsigned long start, int nr_pages, int write,
24125 addr = start;
24126 len = (unsigned long) nr_pages << PAGE_SHIFT;
24127 end = start + len;
24128 - if (unlikely(!access_ok(write ? VERIFY_WRITE : VERIFY_READ,
24129 + if (unlikely(!__access_ok(write ? VERIFY_WRITE : VERIFY_READ,
24130 (void __user *)start, len)))
24131 return 0;
24132
24133 diff --git a/arch/x86/mm/highmem_32.c b/arch/x86/mm/highmem_32.c
24134 index 6f31ee5..8ee4164 100644
24135 --- a/arch/x86/mm/highmem_32.c
24136 +++ b/arch/x86/mm/highmem_32.c
24137 @@ -44,7 +44,11 @@ void *kmap_atomic_prot(struct page *page, pgprot_t prot)
24138 idx = type + KM_TYPE_NR*smp_processor_id();
24139 vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
24140 BUG_ON(!pte_none(*(kmap_pte-idx)));
24141 +
24142 + pax_open_kernel();
24143 set_pte(kmap_pte-idx, mk_pte(page, prot));
24144 + pax_close_kernel();
24145 +
24146 arch_flush_lazy_mmu_mode();
24147
24148 return (void *)vaddr;
24149 diff --git a/arch/x86/mm/hugetlbpage.c b/arch/x86/mm/hugetlbpage.c
24150 index f6679a7..8f795a3 100644
24151 --- a/arch/x86/mm/hugetlbpage.c
24152 +++ b/arch/x86/mm/hugetlbpage.c
24153 @@ -266,13 +266,20 @@ static unsigned long hugetlb_get_unmapped_area_bottomup(struct file *file,
24154 struct hstate *h = hstate_file(file);
24155 struct mm_struct *mm = current->mm;
24156 struct vm_area_struct *vma;
24157 - unsigned long start_addr;
24158 + unsigned long start_addr, pax_task_size = TASK_SIZE;
24159 +
24160 +#ifdef CONFIG_PAX_SEGMEXEC
24161 + if (mm->pax_flags & MF_PAX_SEGMEXEC)
24162 + pax_task_size = SEGMEXEC_TASK_SIZE;
24163 +#endif
24164 +
24165 + pax_task_size -= PAGE_SIZE;
24166
24167 if (len > mm->cached_hole_size) {
24168 - start_addr = mm->free_area_cache;
24169 + start_addr = mm->free_area_cache;
24170 } else {
24171 - start_addr = TASK_UNMAPPED_BASE;
24172 - mm->cached_hole_size = 0;
24173 + start_addr = mm->mmap_base;
24174 + mm->cached_hole_size = 0;
24175 }
24176
24177 full_search:
24178 @@ -280,26 +287,27 @@ full_search:
24179
24180 for (vma = find_vma(mm, addr); ; vma = vma->vm_next) {
24181 /* At this point: (!vma || addr < vma->vm_end). */
24182 - if (TASK_SIZE - len < addr) {
24183 + if (pax_task_size - len < addr) {
24184 /*
24185 * Start a new search - just in case we missed
24186 * some holes.
24187 */
24188 - if (start_addr != TASK_UNMAPPED_BASE) {
24189 - start_addr = TASK_UNMAPPED_BASE;
24190 + if (start_addr != mm->mmap_base) {
24191 + start_addr = mm->mmap_base;
24192 mm->cached_hole_size = 0;
24193 goto full_search;
24194 }
24195 return -ENOMEM;
24196 }
24197 - if (!vma || addr + len <= vma->vm_start) {
24198 - mm->free_area_cache = addr + len;
24199 - return addr;
24200 - }
24201 + if (check_heap_stack_gap(vma, addr, len))
24202 + break;
24203 if (addr + mm->cached_hole_size < vma->vm_start)
24204 mm->cached_hole_size = vma->vm_start - addr;
24205 addr = ALIGN(vma->vm_end, huge_page_size(h));
24206 }
24207 +
24208 + mm->free_area_cache = addr + len;
24209 + return addr;
24210 }
24211
24212 static unsigned long hugetlb_get_unmapped_area_topdown(struct file *file,
24213 @@ -310,9 +318,8 @@ static unsigned long hugetlb_get_unmapped_area_topdown(struct file *file,
24214 struct mm_struct *mm = current->mm;
24215 struct vm_area_struct *vma;
24216 unsigned long base = mm->mmap_base;
24217 - unsigned long addr = addr0;
24218 + unsigned long addr;
24219 unsigned long largest_hole = mm->cached_hole_size;
24220 - unsigned long start_addr;
24221
24222 /* don't allow allocations above current base */
24223 if (mm->free_area_cache > base)
24224 @@ -322,16 +329,15 @@ static unsigned long hugetlb_get_unmapped_area_topdown(struct file *file,
24225 largest_hole = 0;
24226 mm->free_area_cache = base;
24227 }
24228 -try_again:
24229 - start_addr = mm->free_area_cache;
24230
24231 /* make sure it can fit in the remaining address space */
24232 if (mm->free_area_cache < len)
24233 goto fail;
24234
24235 /* either no address requested or can't fit in requested address hole */
24236 - addr = (mm->free_area_cache - len) & huge_page_mask(h);
24237 + addr = mm->free_area_cache - len;
24238 do {
24239 + addr &= huge_page_mask(h);
24240 /*
24241 * Lookup failure means no vma is above this address,
24242 * i.e. return with success:
24243 @@ -340,10 +346,10 @@ try_again:
24244 if (!vma)
24245 return addr;
24246
24247 - if (addr + len <= vma->vm_start) {
24248 + if (check_heap_stack_gap(vma, addr, len)) {
24249 /* remember the address as a hint for next time */
24250 - mm->cached_hole_size = largest_hole;
24251 - return (mm->free_area_cache = addr);
24252 + mm->cached_hole_size = largest_hole;
24253 + return (mm->free_area_cache = addr);
24254 } else if (mm->free_area_cache == vma->vm_end) {
24255 /* pull free_area_cache down to the first hole */
24256 mm->free_area_cache = vma->vm_start;
24257 @@ -352,29 +358,34 @@ try_again:
24258
24259 /* remember the largest hole we saw so far */
24260 if (addr + largest_hole < vma->vm_start)
24261 - largest_hole = vma->vm_start - addr;
24262 + largest_hole = vma->vm_start - addr;
24263
24264 /* try just below the current vma->vm_start */
24265 - addr = (vma->vm_start - len) & huge_page_mask(h);
24266 - } while (len <= vma->vm_start);
24267 + addr = skip_heap_stack_gap(vma, len);
24268 + } while (!IS_ERR_VALUE(addr));
24269
24270 fail:
24271 /*
24272 - * if hint left us with no space for the requested
24273 - * mapping then try again:
24274 - */
24275 - if (start_addr != base) {
24276 - mm->free_area_cache = base;
24277 - largest_hole = 0;
24278 - goto try_again;
24279 - }
24280 - /*
24281 * A failed mmap() very likely causes application failure,
24282 * so fall back to the bottom-up function here. This scenario
24283 * can happen with large stack limits and large mmap()
24284 * allocations.
24285 */
24286 - mm->free_area_cache = TASK_UNMAPPED_BASE;
24287 +
24288 +#ifdef CONFIG_PAX_SEGMEXEC
24289 + if (mm->pax_flags & MF_PAX_SEGMEXEC)
24290 + mm->mmap_base = SEGMEXEC_TASK_UNMAPPED_BASE;
24291 + else
24292 +#endif
24293 +
24294 + mm->mmap_base = TASK_UNMAPPED_BASE;
24295 +
24296 +#ifdef CONFIG_PAX_RANDMMAP
24297 + if (mm->pax_flags & MF_PAX_RANDMMAP)
24298 + mm->mmap_base += mm->delta_mmap;
24299 +#endif
24300 +
24301 + mm->free_area_cache = mm->mmap_base;
24302 mm->cached_hole_size = ~0UL;
24303 addr = hugetlb_get_unmapped_area_bottomup(file, addr0,
24304 len, pgoff, flags);
24305 @@ -382,6 +393,7 @@ fail:
24306 /*
24307 * Restore the topdown base:
24308 */
24309 + mm->mmap_base = base;
24310 mm->free_area_cache = base;
24311 mm->cached_hole_size = ~0UL;
24312
24313 @@ -395,10 +407,19 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
24314 struct hstate *h = hstate_file(file);
24315 struct mm_struct *mm = current->mm;
24316 struct vm_area_struct *vma;
24317 + unsigned long pax_task_size = TASK_SIZE;
24318
24319 if (len & ~huge_page_mask(h))
24320 return -EINVAL;
24321 - if (len > TASK_SIZE)
24322 +
24323 +#ifdef CONFIG_PAX_SEGMEXEC
24324 + if (mm->pax_flags & MF_PAX_SEGMEXEC)
24325 + pax_task_size = SEGMEXEC_TASK_SIZE;
24326 +#endif
24327 +
24328 + pax_task_size -= PAGE_SIZE;
24329 +
24330 + if (len > pax_task_size)
24331 return -ENOMEM;
24332
24333 if (flags & MAP_FIXED) {
24334 @@ -410,8 +431,7 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
24335 if (addr) {
24336 addr = ALIGN(addr, huge_page_size(h));
24337 vma = find_vma(mm, addr);
24338 - if (TASK_SIZE - len >= addr &&
24339 - (!vma || addr + len <= vma->vm_start))
24340 + if (pax_task_size - len >= addr && check_heap_stack_gap(vma, addr, len))
24341 return addr;
24342 }
24343 if (mm->get_unmapped_area == arch_get_unmapped_area)
24344 diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c
24345 index bc4e9d8..ca4c14b 100644
24346 --- a/arch/x86/mm/init.c
24347 +++ b/arch/x86/mm/init.c
24348 @@ -16,6 +16,8 @@
24349 #include <asm/tlb.h>
24350 #include <asm/proto.h>
24351 #include <asm/dma.h> /* for MAX_DMA_PFN */
24352 +#include <asm/desc.h>
24353 +#include <asm/bios_ebda.h>
24354
24355 unsigned long __initdata pgt_buf_start;
24356 unsigned long __meminitdata pgt_buf_end;
24357 @@ -38,7 +40,7 @@ struct map_range {
24358 static void __init find_early_table_space(struct map_range *mr, unsigned long end,
24359 int use_pse, int use_gbpages)
24360 {
24361 - unsigned long puds, pmds, ptes, tables, start = 0, good_end = end;
24362 + unsigned long puds, pmds, ptes, tables, start = 0x100000, good_end = end;
24363 phys_addr_t base;
24364
24365 puds = (end + PUD_SIZE - 1) >> PUD_SHIFT;
24366 @@ -317,10 +319,37 @@ unsigned long __init_refok init_memory_mapping(unsigned long start,
24367 * Access has to be given to non-kernel-ram areas as well, these contain the PCI
24368 * mmio resources as well as potential bios/acpi data regions.
24369 */
24370 +
24371 +#ifdef CONFIG_GRKERNSEC_KMEM
24372 +static unsigned int ebda_start __read_only;
24373 +static unsigned int ebda_end __read_only;
24374 +#endif
24375 +
24376 int devmem_is_allowed(unsigned long pagenr)
24377 {
24378 +#ifdef CONFIG_GRKERNSEC_KMEM
24379 + /* allow BDA */
24380 + if (!pagenr)
24381 + return 1;
24382 + /* allow EBDA */
24383 + if (pagenr >= ebda_start && pagenr < ebda_end)
24384 + return 1;
24385 +#else
24386 + if (!pagenr)
24387 + return 1;
24388 +#ifdef CONFIG_VM86
24389 + if (pagenr < (ISA_START_ADDRESS >> PAGE_SHIFT))
24390 + return 1;
24391 +#endif
24392 +#endif
24393 +
24394 + if ((ISA_START_ADDRESS >> PAGE_SHIFT) <= pagenr && pagenr < (ISA_END_ADDRESS >> PAGE_SHIFT))
24395 + return 1;
24396 +#ifdef CONFIG_GRKERNSEC_KMEM
24397 + /* throw out everything else below 1MB */
24398 if (pagenr <= 256)
24399 - return 1;
24400 + return 0;
24401 +#endif
24402 if (iomem_is_exclusive(pagenr << PAGE_SHIFT))
24403 return 0;
24404 if (!page_is_ram(pagenr))
24405 @@ -377,8 +406,116 @@ void free_init_pages(char *what, unsigned long begin, unsigned long end)
24406 #endif
24407 }
24408
24409 +#ifdef CONFIG_GRKERNSEC_KMEM
24410 +static inline void gr_init_ebda(void)
24411 +{
24412 + unsigned int ebda_addr;
24413 + unsigned int ebda_size = 0;
24414 +
24415 + ebda_addr = get_bios_ebda();
24416 + if (ebda_addr) {
24417 + ebda_size = *(unsigned char *)phys_to_virt(ebda_addr);
24418 + ebda_size <<= 10;
24419 + }
24420 + if (ebda_addr && ebda_size) {
24421 + ebda_start = ebda_addr >> PAGE_SHIFT;
24422 + ebda_end = min((unsigned int)PAGE_ALIGN(ebda_addr + ebda_size), (unsigned int)0xa0000) >> PAGE_SHIFT;
24423 + } else {
24424 + ebda_start = 0x9f000 >> PAGE_SHIFT;
24425 + ebda_end = 0xa0000 >> PAGE_SHIFT;
24426 + }
24427 +}
24428 +#else
24429 +static inline void gr_init_ebda(void) { }
24430 +#endif
24431 +
24432 void free_initmem(void)
24433 {
24434 +#ifdef CONFIG_PAX_KERNEXEC
24435 +#ifdef CONFIG_X86_32
24436 + /* PaX: limit KERNEL_CS to actual size */
24437 + unsigned long addr, limit;
24438 + struct desc_struct d;
24439 + int cpu;
24440 +#else
24441 + pgd_t *pgd;
24442 + pud_t *pud;
24443 + pmd_t *pmd;
24444 + unsigned long addr, end;
24445 +#endif
24446 +#endif
24447 +
24448 + gr_init_ebda();
24449 +
24450 +#ifdef CONFIG_PAX_KERNEXEC
24451 +#ifdef CONFIG_X86_32
24452 + limit = paravirt_enabled() ? ktva_ktla(0xffffffff) : (unsigned long)&_etext;
24453 + limit = (limit - 1UL) >> PAGE_SHIFT;
24454 +
24455 + memset(__LOAD_PHYSICAL_ADDR + PAGE_OFFSET, POISON_FREE_INITMEM, PAGE_SIZE);
24456 + for (cpu = 0; cpu < nr_cpu_ids; cpu++) {
24457 + pack_descriptor(&d, get_desc_base(&get_cpu_gdt_table(cpu)[GDT_ENTRY_KERNEL_CS]), limit, 0x9B, 0xC);
24458 + write_gdt_entry(get_cpu_gdt_table(cpu), GDT_ENTRY_KERNEL_CS, &d, DESCTYPE_S);
24459 + }
24460 +
24461 + /* PaX: make KERNEL_CS read-only */
24462 + addr = PFN_ALIGN(ktla_ktva((unsigned long)&_text));
24463 + if (!paravirt_enabled())
24464 + set_memory_ro(addr, (PFN_ALIGN(_sdata) - addr) >> PAGE_SHIFT);
24465 +/*
24466 + for (addr = ktla_ktva((unsigned long)&_text); addr < (unsigned long)&_sdata; addr += PMD_SIZE) {
24467 + pgd = pgd_offset_k(addr);
24468 + pud = pud_offset(pgd, addr);
24469 + pmd = pmd_offset(pud, addr);
24470 + set_pmd(pmd, __pmd(pmd_val(*pmd) & ~_PAGE_RW));
24471 + }
24472 +*/
24473 +#ifdef CONFIG_X86_PAE
24474 + set_memory_nx(PFN_ALIGN(__init_begin), (PFN_ALIGN(__init_end) - PFN_ALIGN(__init_begin)) >> PAGE_SHIFT);
24475 +/*
24476 + for (addr = (unsigned long)&__init_begin; addr < (unsigned long)&__init_end; addr += PMD_SIZE) {
24477 + pgd = pgd_offset_k(addr);
24478 + pud = pud_offset(pgd, addr);
24479 + pmd = pmd_offset(pud, addr);
24480 + set_pmd(pmd, __pmd(pmd_val(*pmd) | (_PAGE_NX & __supported_pte_mask)));
24481 + }
24482 +*/
24483 +#endif
24484 +
24485 +#ifdef CONFIG_MODULES
24486 + set_memory_4k((unsigned long)MODULES_EXEC_VADDR, (MODULES_EXEC_END - MODULES_EXEC_VADDR) >> PAGE_SHIFT);
24487 +#endif
24488 +
24489 +#else
24490 + /* PaX: make kernel code/rodata read-only, rest non-executable */
24491 + for (addr = __START_KERNEL_map; addr < __START_KERNEL_map + KERNEL_IMAGE_SIZE; addr += PMD_SIZE) {
24492 + pgd = pgd_offset_k(addr);
24493 + pud = pud_offset(pgd, addr);
24494 + pmd = pmd_offset(pud, addr);
24495 + if (!pmd_present(*pmd))
24496 + continue;
24497 + if ((unsigned long)_text <= addr && addr < (unsigned long)_sdata)
24498 + set_pmd(pmd, __pmd(pmd_val(*pmd) & ~_PAGE_RW));
24499 + else
24500 + set_pmd(pmd, __pmd(pmd_val(*pmd) | (_PAGE_NX & __supported_pte_mask)));
24501 + }
24502 +
24503 + addr = (unsigned long)__va(__pa(__START_KERNEL_map));
24504 + end = addr + KERNEL_IMAGE_SIZE;
24505 + for (; addr < end; addr += PMD_SIZE) {
24506 + pgd = pgd_offset_k(addr);
24507 + pud = pud_offset(pgd, addr);
24508 + pmd = pmd_offset(pud, addr);
24509 + if (!pmd_present(*pmd))
24510 + continue;
24511 + if ((unsigned long)__va(__pa(_text)) <= addr && addr < (unsigned long)__va(__pa(_sdata)))
24512 + set_pmd(pmd, __pmd(pmd_val(*pmd) & ~_PAGE_RW));
24513 + }
24514 +#endif
24515 +
24516 + flush_tlb_all();
24517 +#endif
24518 +
24519 free_init_pages("unused kernel memory",
24520 (unsigned long)(&__init_begin),
24521 (unsigned long)(&__init_end));
24522 diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
24523 index 575d86f..4987469 100644
24524 --- a/arch/x86/mm/init_32.c
24525 +++ b/arch/x86/mm/init_32.c
24526 @@ -73,36 +73,6 @@ static __init void *alloc_low_page(void)
24527 }
24528
24529 /*
24530 - * Creates a middle page table and puts a pointer to it in the
24531 - * given global directory entry. This only returns the gd entry
24532 - * in non-PAE compilation mode, since the middle layer is folded.
24533 - */
24534 -static pmd_t * __init one_md_table_init(pgd_t *pgd)
24535 -{
24536 - pud_t *pud;
24537 - pmd_t *pmd_table;
24538 -
24539 -#ifdef CONFIG_X86_PAE
24540 - if (!(pgd_val(*pgd) & _PAGE_PRESENT)) {
24541 - if (after_bootmem)
24542 - pmd_table = (pmd_t *)alloc_bootmem_pages(PAGE_SIZE);
24543 - else
24544 - pmd_table = (pmd_t *)alloc_low_page();
24545 - paravirt_alloc_pmd(&init_mm, __pa(pmd_table) >> PAGE_SHIFT);
24546 - set_pgd(pgd, __pgd(__pa(pmd_table) | _PAGE_PRESENT));
24547 - pud = pud_offset(pgd, 0);
24548 - BUG_ON(pmd_table != pmd_offset(pud, 0));
24549 -
24550 - return pmd_table;
24551 - }
24552 -#endif
24553 - pud = pud_offset(pgd, 0);
24554 - pmd_table = pmd_offset(pud, 0);
24555 -
24556 - return pmd_table;
24557 -}
24558 -
24559 -/*
24560 * Create a page table and place a pointer to it in a middle page
24561 * directory entry:
24562 */
24563 @@ -122,13 +92,28 @@ static pte_t * __init one_page_table_init(pmd_t *pmd)
24564 page_table = (pte_t *)alloc_low_page();
24565
24566 paravirt_alloc_pte(&init_mm, __pa(page_table) >> PAGE_SHIFT);
24567 +#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
24568 + set_pmd(pmd, __pmd(__pa(page_table) | _KERNPG_TABLE));
24569 +#else
24570 set_pmd(pmd, __pmd(__pa(page_table) | _PAGE_TABLE));
24571 +#endif
24572 BUG_ON(page_table != pte_offset_kernel(pmd, 0));
24573 }
24574
24575 return pte_offset_kernel(pmd, 0);
24576 }
24577
24578 +static pmd_t * __init one_md_table_init(pgd_t *pgd)
24579 +{
24580 + pud_t *pud;
24581 + pmd_t *pmd_table;
24582 +
24583 + pud = pud_offset(pgd, 0);
24584 + pmd_table = pmd_offset(pud, 0);
24585 +
24586 + return pmd_table;
24587 +}
24588 +
24589 pmd_t * __init populate_extra_pmd(unsigned long vaddr)
24590 {
24591 int pgd_idx = pgd_index(vaddr);
24592 @@ -202,6 +187,7 @@ page_table_range_init(unsigned long start, unsigned long end, pgd_t *pgd_base)
24593 int pgd_idx, pmd_idx;
24594 unsigned long vaddr;
24595 pgd_t *pgd;
24596 + pud_t *pud;
24597 pmd_t *pmd;
24598 pte_t *pte = NULL;
24599
24600 @@ -211,8 +197,13 @@ page_table_range_init(unsigned long start, unsigned long end, pgd_t *pgd_base)
24601 pgd = pgd_base + pgd_idx;
24602
24603 for ( ; (pgd_idx < PTRS_PER_PGD) && (vaddr != end); pgd++, pgd_idx++) {
24604 - pmd = one_md_table_init(pgd);
24605 - pmd = pmd + pmd_index(vaddr);
24606 + pud = pud_offset(pgd, vaddr);
24607 + pmd = pmd_offset(pud, vaddr);
24608 +
24609 +#ifdef CONFIG_X86_PAE
24610 + paravirt_alloc_pmd(&init_mm, __pa(pmd) >> PAGE_SHIFT);
24611 +#endif
24612 +
24613 for (; (pmd_idx < PTRS_PER_PMD) && (vaddr != end);
24614 pmd++, pmd_idx++) {
24615 pte = page_table_kmap_check(one_page_table_init(pmd),
24616 @@ -224,11 +215,20 @@ page_table_range_init(unsigned long start, unsigned long end, pgd_t *pgd_base)
24617 }
24618 }
24619
24620 -static inline int is_kernel_text(unsigned long addr)
24621 +static inline int is_kernel_text(unsigned long start, unsigned long end)
24622 {
24623 - if (addr >= (unsigned long)_text && addr <= (unsigned long)__init_end)
24624 - return 1;
24625 - return 0;
24626 + if ((start > ktla_ktva((unsigned long)_etext) ||
24627 + end <= ktla_ktva((unsigned long)_stext)) &&
24628 + (start > ktla_ktva((unsigned long)_einittext) ||
24629 + end <= ktla_ktva((unsigned long)_sinittext)) &&
24630 +
24631 +#ifdef CONFIG_ACPI_SLEEP
24632 + (start > (unsigned long)__va(acpi_wakeup_address) + 0x4000 || end <= (unsigned long)__va(acpi_wakeup_address)) &&
24633 +#endif
24634 +
24635 + (start > (unsigned long)__va(0xfffff) || end <= (unsigned long)__va(0xc0000)))
24636 + return 0;
24637 + return 1;
24638 }
24639
24640 /*
24641 @@ -245,9 +245,10 @@ kernel_physical_mapping_init(unsigned long start,
24642 unsigned long last_map_addr = end;
24643 unsigned long start_pfn, end_pfn;
24644 pgd_t *pgd_base = swapper_pg_dir;
24645 - int pgd_idx, pmd_idx, pte_ofs;
24646 + unsigned int pgd_idx, pmd_idx, pte_ofs;
24647 unsigned long pfn;
24648 pgd_t *pgd;
24649 + pud_t *pud;
24650 pmd_t *pmd;
24651 pte_t *pte;
24652 unsigned pages_2m, pages_4k;
24653 @@ -280,8 +281,13 @@ repeat:
24654 pfn = start_pfn;
24655 pgd_idx = pgd_index((pfn<<PAGE_SHIFT) + PAGE_OFFSET);
24656 pgd = pgd_base + pgd_idx;
24657 - for (; pgd_idx < PTRS_PER_PGD; pgd++, pgd_idx++) {
24658 - pmd = one_md_table_init(pgd);
24659 + for (; pgd_idx < PTRS_PER_PGD && pfn < max_low_pfn; pgd++, pgd_idx++) {
24660 + pud = pud_offset(pgd, 0);
24661 + pmd = pmd_offset(pud, 0);
24662 +
24663 +#ifdef CONFIG_X86_PAE
24664 + paravirt_alloc_pmd(&init_mm, __pa(pmd) >> PAGE_SHIFT);
24665 +#endif
24666
24667 if (pfn >= end_pfn)
24668 continue;
24669 @@ -293,14 +299,13 @@ repeat:
24670 #endif
24671 for (; pmd_idx < PTRS_PER_PMD && pfn < end_pfn;
24672 pmd++, pmd_idx++) {
24673 - unsigned int addr = pfn * PAGE_SIZE + PAGE_OFFSET;
24674 + unsigned long address = pfn * PAGE_SIZE + PAGE_OFFSET;
24675
24676 /*
24677 * Map with big pages if possible, otherwise
24678 * create normal page tables:
24679 */
24680 if (use_pse) {
24681 - unsigned int addr2;
24682 pgprot_t prot = PAGE_KERNEL_LARGE;
24683 /*
24684 * first pass will use the same initial
24685 @@ -310,11 +315,7 @@ repeat:
24686 __pgprot(PTE_IDENT_ATTR |
24687 _PAGE_PSE);
24688
24689 - addr2 = (pfn + PTRS_PER_PTE-1) * PAGE_SIZE +
24690 - PAGE_OFFSET + PAGE_SIZE-1;
24691 -
24692 - if (is_kernel_text(addr) ||
24693 - is_kernel_text(addr2))
24694 + if (is_kernel_text(address, address + PMD_SIZE))
24695 prot = PAGE_KERNEL_LARGE_EXEC;
24696
24697 pages_2m++;
24698 @@ -331,7 +332,7 @@ repeat:
24699 pte_ofs = pte_index((pfn<<PAGE_SHIFT) + PAGE_OFFSET);
24700 pte += pte_ofs;
24701 for (; pte_ofs < PTRS_PER_PTE && pfn < end_pfn;
24702 - pte++, pfn++, pte_ofs++, addr += PAGE_SIZE) {
24703 + pte++, pfn++, pte_ofs++, address += PAGE_SIZE) {
24704 pgprot_t prot = PAGE_KERNEL;
24705 /*
24706 * first pass will use the same initial
24707 @@ -339,7 +340,7 @@ repeat:
24708 */
24709 pgprot_t init_prot = __pgprot(PTE_IDENT_ATTR);
24710
24711 - if (is_kernel_text(addr))
24712 + if (is_kernel_text(address, address + PAGE_SIZE))
24713 prot = PAGE_KERNEL_EXEC;
24714
24715 pages_4k++;
24716 @@ -465,7 +466,7 @@ void __init native_pagetable_setup_start(pgd_t *base)
24717
24718 pud = pud_offset(pgd, va);
24719 pmd = pmd_offset(pud, va);
24720 - if (!pmd_present(*pmd))
24721 + if (!pmd_present(*pmd) || pmd_huge(*pmd))
24722 break;
24723
24724 pte = pte_offset_kernel(pmd, va);
24725 @@ -517,12 +518,10 @@ void __init early_ioremap_page_table_range_init(void)
24726
24727 static void __init pagetable_init(void)
24728 {
24729 - pgd_t *pgd_base = swapper_pg_dir;
24730 -
24731 - permanent_kmaps_init(pgd_base);
24732 + permanent_kmaps_init(swapper_pg_dir);
24733 }
24734
24735 -pteval_t __supported_pte_mask __read_mostly = ~(_PAGE_NX | _PAGE_GLOBAL | _PAGE_IOMAP);
24736 +pteval_t __supported_pte_mask __read_only = ~(_PAGE_NX | _PAGE_GLOBAL | _PAGE_IOMAP);
24737 EXPORT_SYMBOL_GPL(__supported_pte_mask);
24738
24739 /* user-defined highmem size */
24740 @@ -734,6 +733,12 @@ void __init mem_init(void)
24741
24742 pci_iommu_alloc();
24743
24744 +#ifdef CONFIG_PAX_PER_CPU_PGD
24745 + clone_pgd_range(get_cpu_pgd(0) + KERNEL_PGD_BOUNDARY,
24746 + swapper_pg_dir + KERNEL_PGD_BOUNDARY,
24747 + KERNEL_PGD_PTRS);
24748 +#endif
24749 +
24750 #ifdef CONFIG_FLATMEM
24751 BUG_ON(!mem_map);
24752 #endif
24753 @@ -760,7 +765,7 @@ void __init mem_init(void)
24754 reservedpages++;
24755
24756 codesize = (unsigned long) &_etext - (unsigned long) &_text;
24757 - datasize = (unsigned long) &_edata - (unsigned long) &_etext;
24758 + datasize = (unsigned long) &_edata - (unsigned long) &_sdata;
24759 initsize = (unsigned long) &__init_end - (unsigned long) &__init_begin;
24760
24761 printk(KERN_INFO "Memory: %luk/%luk available (%dk kernel code, "
24762 @@ -801,10 +806,10 @@ void __init mem_init(void)
24763 ((unsigned long)&__init_end -
24764 (unsigned long)&__init_begin) >> 10,
24765
24766 - (unsigned long)&_etext, (unsigned long)&_edata,
24767 - ((unsigned long)&_edata - (unsigned long)&_etext) >> 10,
24768 + (unsigned long)&_sdata, (unsigned long)&_edata,
24769 + ((unsigned long)&_edata - (unsigned long)&_sdata) >> 10,
24770
24771 - (unsigned long)&_text, (unsigned long)&_etext,
24772 + ktla_ktva((unsigned long)&_text), ktla_ktva((unsigned long)&_etext),
24773 ((unsigned long)&_etext - (unsigned long)&_text) >> 10);
24774
24775 /*
24776 @@ -882,6 +887,7 @@ void set_kernel_text_rw(void)
24777 if (!kernel_set_to_readonly)
24778 return;
24779
24780 + start = ktla_ktva(start);
24781 pr_debug("Set kernel text: %lx - %lx for read write\n",
24782 start, start+size);
24783
24784 @@ -896,6 +902,7 @@ void set_kernel_text_ro(void)
24785 if (!kernel_set_to_readonly)
24786 return;
24787
24788 + start = ktla_ktva(start);
24789 pr_debug("Set kernel text: %lx - %lx for read only\n",
24790 start, start+size);
24791
24792 @@ -924,6 +931,7 @@ void mark_rodata_ro(void)
24793 unsigned long start = PFN_ALIGN(_text);
24794 unsigned long size = PFN_ALIGN(_etext) - start;
24795
24796 + start = ktla_ktva(start);
24797 set_pages_ro(virt_to_page(start), size >> PAGE_SHIFT);
24798 printk(KERN_INFO "Write protecting the kernel text: %luk\n",
24799 size >> 10);
24800 diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
24801 index 2b6b4a3..c17210d 100644
24802 --- a/arch/x86/mm/init_64.c
24803 +++ b/arch/x86/mm/init_64.c
24804 @@ -74,7 +74,7 @@ early_param("gbpages", parse_direct_gbpages_on);
24805 * around without checking the pgd every time.
24806 */
24807
24808 -pteval_t __supported_pte_mask __read_mostly = ~_PAGE_IOMAP;
24809 +pteval_t __supported_pte_mask __read_only = ~(_PAGE_NX | _PAGE_IOMAP);
24810 EXPORT_SYMBOL_GPL(__supported_pte_mask);
24811
24812 int force_personality32;
24813 @@ -107,12 +107,22 @@ void sync_global_pgds(unsigned long start, unsigned long end)
24814
24815 for (address = start; address <= end; address += PGDIR_SIZE) {
24816 const pgd_t *pgd_ref = pgd_offset_k(address);
24817 +
24818 +#ifdef CONFIG_PAX_PER_CPU_PGD
24819 + unsigned long cpu;
24820 +#else
24821 struct page *page;
24822 +#endif
24823
24824 if (pgd_none(*pgd_ref))
24825 continue;
24826
24827 spin_lock(&pgd_lock);
24828 +
24829 +#ifdef CONFIG_PAX_PER_CPU_PGD
24830 + for (cpu = 0; cpu < nr_cpu_ids; ++cpu) {
24831 + pgd_t *pgd = pgd_offset_cpu(cpu, address);
24832 +#else
24833 list_for_each_entry(page, &pgd_list, lru) {
24834 pgd_t *pgd;
24835 spinlock_t *pgt_lock;
24836 @@ -121,6 +131,7 @@ void sync_global_pgds(unsigned long start, unsigned long end)
24837 /* the pgt_lock only for Xen */
24838 pgt_lock = &pgd_page_get_mm(page)->page_table_lock;
24839 spin_lock(pgt_lock);
24840 +#endif
24841
24842 if (pgd_none(*pgd))
24843 set_pgd(pgd, *pgd_ref);
24844 @@ -128,7 +139,10 @@ void sync_global_pgds(unsigned long start, unsigned long end)
24845 BUG_ON(pgd_page_vaddr(*pgd)
24846 != pgd_page_vaddr(*pgd_ref));
24847
24848 +#ifndef CONFIG_PAX_PER_CPU_PGD
24849 spin_unlock(pgt_lock);
24850 +#endif
24851 +
24852 }
24853 spin_unlock(&pgd_lock);
24854 }
24855 @@ -161,7 +175,7 @@ static pud_t *fill_pud(pgd_t *pgd, unsigned long vaddr)
24856 {
24857 if (pgd_none(*pgd)) {
24858 pud_t *pud = (pud_t *)spp_getpage();
24859 - pgd_populate(&init_mm, pgd, pud);
24860 + pgd_populate_kernel(&init_mm, pgd, pud);
24861 if (pud != pud_offset(pgd, 0))
24862 printk(KERN_ERR "PAGETABLE BUG #00! %p <-> %p\n",
24863 pud, pud_offset(pgd, 0));
24864 @@ -173,7 +187,7 @@ static pmd_t *fill_pmd(pud_t *pud, unsigned long vaddr)
24865 {
24866 if (pud_none(*pud)) {
24867 pmd_t *pmd = (pmd_t *) spp_getpage();
24868 - pud_populate(&init_mm, pud, pmd);
24869 + pud_populate_kernel(&init_mm, pud, pmd);
24870 if (pmd != pmd_offset(pud, 0))
24871 printk(KERN_ERR "PAGETABLE BUG #01! %p <-> %p\n",
24872 pmd, pmd_offset(pud, 0));
24873 @@ -202,7 +216,9 @@ void set_pte_vaddr_pud(pud_t *pud_page, unsigned long vaddr, pte_t new_pte)
24874 pmd = fill_pmd(pud, vaddr);
24875 pte = fill_pte(pmd, vaddr);
24876
24877 + pax_open_kernel();
24878 set_pte(pte, new_pte);
24879 + pax_close_kernel();
24880
24881 /*
24882 * It's enough to flush this one mapping.
24883 @@ -261,14 +277,12 @@ static void __init __init_extra_mapping(unsigned long phys, unsigned long size,
24884 pgd = pgd_offset_k((unsigned long)__va(phys));
24885 if (pgd_none(*pgd)) {
24886 pud = (pud_t *) spp_getpage();
24887 - set_pgd(pgd, __pgd(__pa(pud) | _KERNPG_TABLE |
24888 - _PAGE_USER));
24889 + set_pgd(pgd, __pgd(__pa(pud) | _PAGE_TABLE));
24890 }
24891 pud = pud_offset(pgd, (unsigned long)__va(phys));
24892 if (pud_none(*pud)) {
24893 pmd = (pmd_t *) spp_getpage();
24894 - set_pud(pud, __pud(__pa(pmd) | _KERNPG_TABLE |
24895 - _PAGE_USER));
24896 + set_pud(pud, __pud(__pa(pmd) | _PAGE_TABLE));
24897 }
24898 pmd = pmd_offset(pud, phys);
24899 BUG_ON(!pmd_none(*pmd));
24900 @@ -329,7 +343,7 @@ static __ref void *alloc_low_page(unsigned long *phys)
24901 if (pfn >= pgt_buf_top)
24902 panic("alloc_low_page: ran out of memory");
24903
24904 - adr = early_memremap(pfn * PAGE_SIZE, PAGE_SIZE);
24905 + adr = (void __force_kernel *)early_memremap(pfn * PAGE_SIZE, PAGE_SIZE);
24906 clear_page(adr);
24907 *phys = pfn * PAGE_SIZE;
24908 return adr;
24909 @@ -345,7 +359,7 @@ static __ref void *map_low_page(void *virt)
24910
24911 phys = __pa(virt);
24912 left = phys & (PAGE_SIZE - 1);
24913 - adr = early_memremap(phys & PAGE_MASK, PAGE_SIZE);
24914 + adr = (void __force_kernel *)early_memremap(phys & PAGE_MASK, PAGE_SIZE);
24915 adr = (void *)(((unsigned long)adr) | left);
24916
24917 return adr;
24918 @@ -548,7 +562,7 @@ phys_pud_init(pud_t *pud_page, unsigned long addr, unsigned long end,
24919 unmap_low_page(pmd);
24920
24921 spin_lock(&init_mm.page_table_lock);
24922 - pud_populate(&init_mm, pud, __va(pmd_phys));
24923 + pud_populate_kernel(&init_mm, pud, __va(pmd_phys));
24924 spin_unlock(&init_mm.page_table_lock);
24925 }
24926 __flush_tlb_all();
24927 @@ -594,7 +608,7 @@ kernel_physical_mapping_init(unsigned long start,
24928 unmap_low_page(pud);
24929
24930 spin_lock(&init_mm.page_table_lock);
24931 - pgd_populate(&init_mm, pgd, __va(pud_phys));
24932 + pgd_populate_kernel(&init_mm, pgd, __va(pud_phys));
24933 spin_unlock(&init_mm.page_table_lock);
24934 pgd_changed = true;
24935 }
24936 @@ -686,6 +700,12 @@ void __init mem_init(void)
24937
24938 pci_iommu_alloc();
24939
24940 +#ifdef CONFIG_PAX_PER_CPU_PGD
24941 + clone_pgd_range(get_cpu_pgd(0) + KERNEL_PGD_BOUNDARY,
24942 + swapper_pg_dir + KERNEL_PGD_BOUNDARY,
24943 + KERNEL_PGD_PTRS);
24944 +#endif
24945 +
24946 /* clear_bss() already clear the empty_zero_page */
24947
24948 reservedpages = 0;
24949 @@ -846,8 +866,8 @@ int kern_addr_valid(unsigned long addr)
24950 static struct vm_area_struct gate_vma = {
24951 .vm_start = VSYSCALL_START,
24952 .vm_end = VSYSCALL_START + (VSYSCALL_MAPPED_PAGES * PAGE_SIZE),
24953 - .vm_page_prot = PAGE_READONLY_EXEC,
24954 - .vm_flags = VM_READ | VM_EXEC
24955 + .vm_page_prot = PAGE_READONLY,
24956 + .vm_flags = VM_READ
24957 };
24958
24959 struct vm_area_struct *get_gate_vma(struct mm_struct *mm)
24960 @@ -881,7 +901,7 @@ int in_gate_area_no_mm(unsigned long addr)
24961
24962 const char *arch_vma_name(struct vm_area_struct *vma)
24963 {
24964 - if (vma->vm_mm && vma->vm_start == (long)vma->vm_mm->context.vdso)
24965 + if (vma->vm_mm && vma->vm_start == vma->vm_mm->context.vdso)
24966 return "[vdso]";
24967 if (vma == &gate_vma)
24968 return "[vsyscall]";
24969 diff --git a/arch/x86/mm/iomap_32.c b/arch/x86/mm/iomap_32.c
24970 index 7b179b4..6bd1777 100644
24971 --- a/arch/x86/mm/iomap_32.c
24972 +++ b/arch/x86/mm/iomap_32.c
24973 @@ -64,7 +64,11 @@ void *kmap_atomic_prot_pfn(unsigned long pfn, pgprot_t prot)
24974 type = kmap_atomic_idx_push();
24975 idx = type + KM_TYPE_NR * smp_processor_id();
24976 vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
24977 +
24978 + pax_open_kernel();
24979 set_pte(kmap_pte - idx, pfn_pte(pfn, prot));
24980 + pax_close_kernel();
24981 +
24982 arch_flush_lazy_mmu_mode();
24983
24984 return (void *)vaddr;
24985 diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c
24986 index 78fe3f1..8293b6f 100644
24987 --- a/arch/x86/mm/ioremap.c
24988 +++ b/arch/x86/mm/ioremap.c
24989 @@ -97,7 +97,7 @@ static void __iomem *__ioremap_caller(resource_size_t phys_addr,
24990 for (pfn = phys_addr >> PAGE_SHIFT; pfn <= last_pfn; pfn++) {
24991 int is_ram = page_is_ram(pfn);
24992
24993 - if (is_ram && pfn_valid(pfn) && !PageReserved(pfn_to_page(pfn)))
24994 + if (is_ram && pfn_valid(pfn) && (pfn >= 0x100 || !PageReserved(pfn_to_page(pfn))))
24995 return NULL;
24996 WARN_ON_ONCE(is_ram);
24997 }
24998 @@ -315,6 +315,9 @@ void *xlate_dev_mem_ptr(unsigned long phys)
24999
25000 /* If page is RAM, we can use __va. Otherwise ioremap and unmap. */
25001 if (page_is_ram(start >> PAGE_SHIFT))
25002 +#ifdef CONFIG_HIGHMEM
25003 + if ((start >> PAGE_SHIFT) < max_low_pfn)
25004 +#endif
25005 return __va(phys);
25006
25007 addr = (void __force *)ioremap_cache(start, PAGE_SIZE);
25008 @@ -344,7 +347,7 @@ static int __init early_ioremap_debug_setup(char *str)
25009 early_param("early_ioremap_debug", early_ioremap_debug_setup);
25010
25011 static __initdata int after_paging_init;
25012 -static pte_t bm_pte[PAGE_SIZE/sizeof(pte_t)] __page_aligned_bss;
25013 +static pte_t bm_pte[PAGE_SIZE/sizeof(pte_t)] __read_only __aligned(PAGE_SIZE);
25014
25015 static inline pmd_t * __init early_ioremap_pmd(unsigned long addr)
25016 {
25017 @@ -381,8 +384,7 @@ void __init early_ioremap_init(void)
25018 slot_virt[i] = __fix_to_virt(FIX_BTMAP_BEGIN - NR_FIX_BTMAPS*i);
25019
25020 pmd = early_ioremap_pmd(fix_to_virt(FIX_BTMAP_BEGIN));
25021 - memset(bm_pte, 0, sizeof(bm_pte));
25022 - pmd_populate_kernel(&init_mm, pmd, bm_pte);
25023 + pmd_populate_user(&init_mm, pmd, bm_pte);
25024
25025 /*
25026 * The boot-ioremap range spans multiple pmds, for which
25027 diff --git a/arch/x86/mm/kmemcheck/kmemcheck.c b/arch/x86/mm/kmemcheck/kmemcheck.c
25028 index d87dd6d..bf3fa66 100644
25029 --- a/arch/x86/mm/kmemcheck/kmemcheck.c
25030 +++ b/arch/x86/mm/kmemcheck/kmemcheck.c
25031 @@ -622,9 +622,9 @@ bool kmemcheck_fault(struct pt_regs *regs, unsigned long address,
25032 * memory (e.g. tracked pages)? For now, we need this to avoid
25033 * invoking kmemcheck for PnP BIOS calls.
25034 */
25035 - if (regs->flags & X86_VM_MASK)
25036 + if (v8086_mode(regs))
25037 return false;
25038 - if (regs->cs != __KERNEL_CS)
25039 + if (regs->cs != __KERNEL_CS && regs->cs != __KERNEXEC_KERNEL_CS)
25040 return false;
25041
25042 pte = kmemcheck_pte_lookup(address);
25043 diff --git a/arch/x86/mm/mmap.c b/arch/x86/mm/mmap.c
25044 index 845df68..1d8d29f 100644
25045 --- a/arch/x86/mm/mmap.c
25046 +++ b/arch/x86/mm/mmap.c
25047 @@ -52,7 +52,7 @@ static unsigned int stack_maxrandom_size(void)
25048 * Leave an at least ~128 MB hole with possible stack randomization.
25049 */
25050 #define MIN_GAP (128*1024*1024UL + stack_maxrandom_size())
25051 -#define MAX_GAP (TASK_SIZE/6*5)
25052 +#define MAX_GAP (pax_task_size/6*5)
25053
25054 static int mmap_is_legacy(void)
25055 {
25056 @@ -82,27 +82,40 @@ static unsigned long mmap_rnd(void)
25057 return rnd << PAGE_SHIFT;
25058 }
25059
25060 -static unsigned long mmap_base(void)
25061 +static unsigned long mmap_base(struct mm_struct *mm)
25062 {
25063 unsigned long gap = rlimit(RLIMIT_STACK);
25064 + unsigned long pax_task_size = TASK_SIZE;
25065 +
25066 +#ifdef CONFIG_PAX_SEGMEXEC
25067 + if (mm->pax_flags & MF_PAX_SEGMEXEC)
25068 + pax_task_size = SEGMEXEC_TASK_SIZE;
25069 +#endif
25070
25071 if (gap < MIN_GAP)
25072 gap = MIN_GAP;
25073 else if (gap > MAX_GAP)
25074 gap = MAX_GAP;
25075
25076 - return PAGE_ALIGN(TASK_SIZE - gap - mmap_rnd());
25077 + return PAGE_ALIGN(pax_task_size - gap - mmap_rnd());
25078 }
25079
25080 /*
25081 * Bottom-up (legacy) layout on X86_32 did not support randomization, X86_64
25082 * does, but not when emulating X86_32
25083 */
25084 -static unsigned long mmap_legacy_base(void)
25085 +static unsigned long mmap_legacy_base(struct mm_struct *mm)
25086 {
25087 - if (mmap_is_ia32())
25088 + if (mmap_is_ia32()) {
25089 +
25090 +#ifdef CONFIG_PAX_SEGMEXEC
25091 + if (mm->pax_flags & MF_PAX_SEGMEXEC)
25092 + return SEGMEXEC_TASK_UNMAPPED_BASE;
25093 + else
25094 +#endif
25095 +
25096 return TASK_UNMAPPED_BASE;
25097 - else
25098 + } else
25099 return TASK_UNMAPPED_BASE + mmap_rnd();
25100 }
25101
25102 @@ -113,11 +126,23 @@ static unsigned long mmap_legacy_base(void)
25103 void arch_pick_mmap_layout(struct mm_struct *mm)
25104 {
25105 if (mmap_is_legacy()) {
25106 - mm->mmap_base = mmap_legacy_base();
25107 + mm->mmap_base = mmap_legacy_base(mm);
25108 +
25109 +#ifdef CONFIG_PAX_RANDMMAP
25110 + if (mm->pax_flags & MF_PAX_RANDMMAP)
25111 + mm->mmap_base += mm->delta_mmap;
25112 +#endif
25113 +
25114 mm->get_unmapped_area = arch_get_unmapped_area;
25115 mm->unmap_area = arch_unmap_area;
25116 } else {
25117 - mm->mmap_base = mmap_base();
25118 + mm->mmap_base = mmap_base(mm);
25119 +
25120 +#ifdef CONFIG_PAX_RANDMMAP
25121 + if (mm->pax_flags & MF_PAX_RANDMMAP)
25122 + mm->mmap_base -= mm->delta_mmap + mm->delta_stack;
25123 +#endif
25124 +
25125 mm->get_unmapped_area = arch_get_unmapped_area_topdown;
25126 mm->unmap_area = arch_unmap_area_topdown;
25127 }
25128 diff --git a/arch/x86/mm/mmio-mod.c b/arch/x86/mm/mmio-mod.c
25129 index dc0b727..dc9d71a 100644
25130 --- a/arch/x86/mm/mmio-mod.c
25131 +++ b/arch/x86/mm/mmio-mod.c
25132 @@ -194,7 +194,7 @@ static void pre(struct kmmio_probe *p, struct pt_regs *regs,
25133 break;
25134 default:
25135 {
25136 - unsigned char *ip = (unsigned char *)instptr;
25137 + unsigned char *ip = (unsigned char *)ktla_ktva(instptr);
25138 my_trace->opcode = MMIO_UNKNOWN_OP;
25139 my_trace->width = 0;
25140 my_trace->value = (*ip) << 16 | *(ip + 1) << 8 |
25141 @@ -234,7 +234,7 @@ static void post(struct kmmio_probe *p, unsigned long condition,
25142 static void ioremap_trace_core(resource_size_t offset, unsigned long size,
25143 void __iomem *addr)
25144 {
25145 - static atomic_t next_id;
25146 + static atomic_unchecked_t next_id;
25147 struct remap_trace *trace = kmalloc(sizeof(*trace), GFP_KERNEL);
25148 /* These are page-unaligned. */
25149 struct mmiotrace_map map = {
25150 @@ -258,7 +258,7 @@ static void ioremap_trace_core(resource_size_t offset, unsigned long size,
25151 .private = trace
25152 },
25153 .phys = offset,
25154 - .id = atomic_inc_return(&next_id)
25155 + .id = atomic_inc_return_unchecked(&next_id)
25156 };
25157 map.map_id = trace->id;
25158
25159 diff --git a/arch/x86/mm/pageattr-test.c b/arch/x86/mm/pageattr-test.c
25160 index b008656..773eac2 100644
25161 --- a/arch/x86/mm/pageattr-test.c
25162 +++ b/arch/x86/mm/pageattr-test.c
25163 @@ -36,7 +36,7 @@ enum {
25164
25165 static int pte_testbit(pte_t pte)
25166 {
25167 - return pte_flags(pte) & _PAGE_UNUSED1;
25168 + return pte_flags(pte) & _PAGE_CPA_TEST;
25169 }
25170
25171 struct split_state {
25172 diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
25173 index a718e0d..45efc32 100644
25174 --- a/arch/x86/mm/pageattr.c
25175 +++ b/arch/x86/mm/pageattr.c
25176 @@ -261,7 +261,7 @@ static inline pgprot_t static_protections(pgprot_t prot, unsigned long address,
25177 */
25178 #ifdef CONFIG_PCI_BIOS
25179 if (pcibios_enabled && within(pfn, BIOS_BEGIN >> PAGE_SHIFT, BIOS_END >> PAGE_SHIFT))
25180 - pgprot_val(forbidden) |= _PAGE_NX;
25181 + pgprot_val(forbidden) |= _PAGE_NX & __supported_pte_mask;
25182 #endif
25183
25184 /*
25185 @@ -269,9 +269,10 @@ static inline pgprot_t static_protections(pgprot_t prot, unsigned long address,
25186 * Does not cover __inittext since that is gone later on. On
25187 * 64bit we do not enforce !NX on the low mapping
25188 */
25189 - if (within(address, (unsigned long)_text, (unsigned long)_etext))
25190 - pgprot_val(forbidden) |= _PAGE_NX;
25191 + if (within(address, ktla_ktva((unsigned long)_text), ktla_ktva((unsigned long)_etext)))
25192 + pgprot_val(forbidden) |= _PAGE_NX & __supported_pte_mask;
25193
25194 +#ifdef CONFIG_DEBUG_RODATA
25195 /*
25196 * The .rodata section needs to be read-only. Using the pfn
25197 * catches all aliases.
25198 @@ -279,6 +280,7 @@ static inline pgprot_t static_protections(pgprot_t prot, unsigned long address,
25199 if (within(pfn, __pa((unsigned long)__start_rodata) >> PAGE_SHIFT,
25200 __pa((unsigned long)__end_rodata) >> PAGE_SHIFT))
25201 pgprot_val(forbidden) |= _PAGE_RW;
25202 +#endif
25203
25204 #if defined(CONFIG_X86_64) && defined(CONFIG_DEBUG_RODATA)
25205 /*
25206 @@ -317,6 +319,13 @@ static inline pgprot_t static_protections(pgprot_t prot, unsigned long address,
25207 }
25208 #endif
25209
25210 +#ifdef CONFIG_PAX_KERNEXEC
25211 + if (within(pfn, __pa((unsigned long)&_text), __pa((unsigned long)&_sdata))) {
25212 + pgprot_val(forbidden) |= _PAGE_RW;
25213 + pgprot_val(forbidden) |= _PAGE_NX & __supported_pte_mask;
25214 + }
25215 +#endif
25216 +
25217 prot = __pgprot(pgprot_val(prot) & ~pgprot_val(forbidden));
25218
25219 return prot;
25220 @@ -369,23 +378,37 @@ EXPORT_SYMBOL_GPL(lookup_address);
25221 static void __set_pmd_pte(pte_t *kpte, unsigned long address, pte_t pte)
25222 {
25223 /* change init_mm */
25224 + pax_open_kernel();
25225 set_pte_atomic(kpte, pte);
25226 +
25227 #ifdef CONFIG_X86_32
25228 if (!SHARED_KERNEL_PMD) {
25229 +
25230 +#ifdef CONFIG_PAX_PER_CPU_PGD
25231 + unsigned long cpu;
25232 +#else
25233 struct page *page;
25234 +#endif
25235
25236 +#ifdef CONFIG_PAX_PER_CPU_PGD
25237 + for (cpu = 0; cpu < nr_cpu_ids; ++cpu) {
25238 + pgd_t *pgd = get_cpu_pgd(cpu);
25239 +#else
25240 list_for_each_entry(page, &pgd_list, lru) {
25241 - pgd_t *pgd;
25242 + pgd_t *pgd = (pgd_t *)page_address(page);
25243 +#endif
25244 +
25245 pud_t *pud;
25246 pmd_t *pmd;
25247
25248 - pgd = (pgd_t *)page_address(page) + pgd_index(address);
25249 + pgd += pgd_index(address);
25250 pud = pud_offset(pgd, address);
25251 pmd = pmd_offset(pud, address);
25252 set_pte_atomic((pte_t *)pmd, pte);
25253 }
25254 }
25255 #endif
25256 + pax_close_kernel();
25257 }
25258
25259 static int
25260 diff --git a/arch/x86/mm/pat.c b/arch/x86/mm/pat.c
25261 index 3d68ef6..7f69136 100644
25262 --- a/arch/x86/mm/pat.c
25263 +++ b/arch/x86/mm/pat.c
25264 @@ -376,7 +376,7 @@ int free_memtype(u64 start, u64 end)
25265
25266 if (!entry) {
25267 printk(KERN_INFO "%s:%d freeing invalid memtype [mem %#010Lx-%#010Lx]\n",
25268 - current->comm, current->pid, start, end - 1);
25269 + current->comm, task_pid_nr(current), start, end - 1);
25270 return -EINVAL;
25271 }
25272
25273 @@ -506,8 +506,8 @@ static inline int range_is_allowed(unsigned long pfn, unsigned long size)
25274
25275 while (cursor < to) {
25276 if (!devmem_is_allowed(pfn)) {
25277 - printk(KERN_INFO "Program %s tried to access /dev/mem between [mem %#010Lx-%#010Lx]\n",
25278 - current->comm, from, to - 1);
25279 + printk(KERN_INFO "Program %s tried to access /dev/mem between [mem %#010Lx-%#010Lx] (%#010Lx)\n",
25280 + current->comm, from, to - 1, cursor);
25281 return 0;
25282 }
25283 cursor += PAGE_SIZE;
25284 @@ -570,7 +570,7 @@ int kernel_map_sync_memtype(u64 base, unsigned long size, unsigned long flags)
25285 if (ioremap_change_attr((unsigned long)__va(base), id_sz, flags) < 0) {
25286 printk(KERN_INFO "%s:%d ioremap_change_attr failed %s "
25287 "for [mem %#010Lx-%#010Lx]\n",
25288 - current->comm, current->pid,
25289 + current->comm, task_pid_nr(current),
25290 cattr_name(flags),
25291 base, (unsigned long long)(base + size-1));
25292 return -EINVAL;
25293 @@ -605,7 +605,7 @@ static int reserve_pfn_range(u64 paddr, unsigned long size, pgprot_t *vma_prot,
25294 flags = lookup_memtype(paddr);
25295 if (want_flags != flags) {
25296 printk(KERN_WARNING "%s:%d map pfn RAM range req %s for [mem %#010Lx-%#010Lx], got %s\n",
25297 - current->comm, current->pid,
25298 + current->comm, task_pid_nr(current),
25299 cattr_name(want_flags),
25300 (unsigned long long)paddr,
25301 (unsigned long long)(paddr + size - 1),
25302 @@ -627,7 +627,7 @@ static int reserve_pfn_range(u64 paddr, unsigned long size, pgprot_t *vma_prot,
25303 free_memtype(paddr, paddr + size);
25304 printk(KERN_ERR "%s:%d map pfn expected mapping type %s"
25305 " for [mem %#010Lx-%#010Lx], got %s\n",
25306 - current->comm, current->pid,
25307 + current->comm, task_pid_nr(current),
25308 cattr_name(want_flags),
25309 (unsigned long long)paddr,
25310 (unsigned long long)(paddr + size - 1),
25311 diff --git a/arch/x86/mm/pf_in.c b/arch/x86/mm/pf_in.c
25312 index 9f0614d..92ae64a 100644
25313 --- a/arch/x86/mm/pf_in.c
25314 +++ b/arch/x86/mm/pf_in.c
25315 @@ -148,7 +148,7 @@ enum reason_type get_ins_type(unsigned long ins_addr)
25316 int i;
25317 enum reason_type rv = OTHERS;
25318
25319 - p = (unsigned char *)ins_addr;
25320 + p = (unsigned char *)ktla_ktva(ins_addr);
25321 p += skip_prefix(p, &prf);
25322 p += get_opcode(p, &opcode);
25323
25324 @@ -168,7 +168,7 @@ static unsigned int get_ins_reg_width(unsigned long ins_addr)
25325 struct prefix_bits prf;
25326 int i;
25327
25328 - p = (unsigned char *)ins_addr;
25329 + p = (unsigned char *)ktla_ktva(ins_addr);
25330 p += skip_prefix(p, &prf);
25331 p += get_opcode(p, &opcode);
25332
25333 @@ -191,7 +191,7 @@ unsigned int get_ins_mem_width(unsigned long ins_addr)
25334 struct prefix_bits prf;
25335 int i;
25336
25337 - p = (unsigned char *)ins_addr;
25338 + p = (unsigned char *)ktla_ktva(ins_addr);
25339 p += skip_prefix(p, &prf);
25340 p += get_opcode(p, &opcode);
25341
25342 @@ -415,7 +415,7 @@ unsigned long get_ins_reg_val(unsigned long ins_addr, struct pt_regs *regs)
25343 struct prefix_bits prf;
25344 int i;
25345
25346 - p = (unsigned char *)ins_addr;
25347 + p = (unsigned char *)ktla_ktva(ins_addr);
25348 p += skip_prefix(p, &prf);
25349 p += get_opcode(p, &opcode);
25350 for (i = 0; i < ARRAY_SIZE(reg_rop); i++)
25351 @@ -470,7 +470,7 @@ unsigned long get_ins_imm_val(unsigned long ins_addr)
25352 struct prefix_bits prf;
25353 int i;
25354
25355 - p = (unsigned char *)ins_addr;
25356 + p = (unsigned char *)ktla_ktva(ins_addr);
25357 p += skip_prefix(p, &prf);
25358 p += get_opcode(p, &opcode);
25359 for (i = 0; i < ARRAY_SIZE(imm_wop); i++)
25360 diff --git a/arch/x86/mm/pgtable.c b/arch/x86/mm/pgtable.c
25361 index 8573b83..4f3ed7e 100644
25362 --- a/arch/x86/mm/pgtable.c
25363 +++ b/arch/x86/mm/pgtable.c
25364 @@ -84,10 +84,64 @@ static inline void pgd_list_del(pgd_t *pgd)
25365 list_del(&page->lru);
25366 }
25367
25368 -#define UNSHARED_PTRS_PER_PGD \
25369 - (SHARED_KERNEL_PMD ? KERNEL_PGD_BOUNDARY : PTRS_PER_PGD)
25370 +#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
25371 +pgdval_t clone_pgd_mask __read_only = ~_PAGE_PRESENT;
25372
25373 +void __shadow_user_pgds(pgd_t *dst, const pgd_t *src)
25374 +{
25375 + unsigned int count = USER_PGD_PTRS;
25376
25377 + while (count--)
25378 + *dst++ = __pgd((pgd_val(*src++) | (_PAGE_NX & __supported_pte_mask)) & ~_PAGE_USER);
25379 +}
25380 +#endif
25381 +
25382 +#ifdef CONFIG_PAX_PER_CPU_PGD
25383 +void __clone_user_pgds(pgd_t *dst, const pgd_t *src)
25384 +{
25385 + unsigned int count = USER_PGD_PTRS;
25386 +
25387 + while (count--) {
25388 + pgd_t pgd;
25389 +
25390 +#ifdef CONFIG_X86_64
25391 + pgd = __pgd(pgd_val(*src++) | _PAGE_USER);
25392 +#else
25393 + pgd = *src++;
25394 +#endif
25395 +
25396 +#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
25397 + pgd = __pgd(pgd_val(pgd) & clone_pgd_mask);
25398 +#endif
25399 +
25400 + *dst++ = pgd;
25401 + }
25402 +
25403 +}
25404 +#endif
25405 +
25406 +#ifdef CONFIG_X86_64
25407 +#define pxd_t pud_t
25408 +#define pyd_t pgd_t
25409 +#define paravirt_release_pxd(pfn) paravirt_release_pud(pfn)
25410 +#define pxd_free(mm, pud) pud_free((mm), (pud))
25411 +#define pyd_populate(mm, pgd, pud) pgd_populate((mm), (pgd), (pud))
25412 +#define pyd_offset(mm, address) pgd_offset((mm), (address))
25413 +#define PYD_SIZE PGDIR_SIZE
25414 +#else
25415 +#define pxd_t pmd_t
25416 +#define pyd_t pud_t
25417 +#define paravirt_release_pxd(pfn) paravirt_release_pmd(pfn)
25418 +#define pxd_free(mm, pud) pmd_free((mm), (pud))
25419 +#define pyd_populate(mm, pgd, pud) pud_populate((mm), (pgd), (pud))
25420 +#define pyd_offset(mm, address) pud_offset((mm), (address))
25421 +#define PYD_SIZE PUD_SIZE
25422 +#endif
25423 +
25424 +#ifdef CONFIG_PAX_PER_CPU_PGD
25425 +static inline void pgd_ctor(struct mm_struct *mm, pgd_t *pgd) {}
25426 +static inline void pgd_dtor(pgd_t *pgd) {}
25427 +#else
25428 static void pgd_set_mm(pgd_t *pgd, struct mm_struct *mm)
25429 {
25430 BUILD_BUG_ON(sizeof(virt_to_page(pgd)->index) < sizeof(mm));
25431 @@ -128,6 +182,7 @@ static void pgd_dtor(pgd_t *pgd)
25432 pgd_list_del(pgd);
25433 spin_unlock(&pgd_lock);
25434 }
25435 +#endif
25436
25437 /*
25438 * List of all pgd's needed for non-PAE so it can invalidate entries
25439 @@ -140,7 +195,7 @@ static void pgd_dtor(pgd_t *pgd)
25440 * -- wli
25441 */
25442
25443 -#ifdef CONFIG_X86_PAE
25444 +#if defined(CONFIG_X86_32) && defined(CONFIG_X86_PAE)
25445 /*
25446 * In PAE mode, we need to do a cr3 reload (=tlb flush) when
25447 * updating the top-level pagetable entries to guarantee the
25448 @@ -152,7 +207,7 @@ static void pgd_dtor(pgd_t *pgd)
25449 * not shared between pagetables (!SHARED_KERNEL_PMDS), we allocate
25450 * and initialize the kernel pmds here.
25451 */
25452 -#define PREALLOCATED_PMDS UNSHARED_PTRS_PER_PGD
25453 +#define PREALLOCATED_PXDS (SHARED_KERNEL_PMD ? KERNEL_PGD_BOUNDARY : PTRS_PER_PGD)
25454
25455 void pud_populate(struct mm_struct *mm, pud_t *pudp, pmd_t *pmd)
25456 {
25457 @@ -170,36 +225,38 @@ void pud_populate(struct mm_struct *mm, pud_t *pudp, pmd_t *pmd)
25458 */
25459 flush_tlb_mm(mm);
25460 }
25461 +#elif defined(CONFIG_X86_64) && defined(CONFIG_PAX_PER_CPU_PGD)
25462 +#define PREALLOCATED_PXDS USER_PGD_PTRS
25463 #else /* !CONFIG_X86_PAE */
25464
25465 /* No need to prepopulate any pagetable entries in non-PAE modes. */
25466 -#define PREALLOCATED_PMDS 0
25467 +#define PREALLOCATED_PXDS 0
25468
25469 #endif /* CONFIG_X86_PAE */
25470
25471 -static void free_pmds(pmd_t *pmds[])
25472 +static void free_pxds(pxd_t *pxds[])
25473 {
25474 int i;
25475
25476 - for(i = 0; i < PREALLOCATED_PMDS; i++)
25477 - if (pmds[i])
25478 - free_page((unsigned long)pmds[i]);
25479 + for(i = 0; i < PREALLOCATED_PXDS; i++)
25480 + if (pxds[i])
25481 + free_page((unsigned long)pxds[i]);
25482 }
25483
25484 -static int preallocate_pmds(pmd_t *pmds[])
25485 +static int preallocate_pxds(pxd_t *pxds[])
25486 {
25487 int i;
25488 bool failed = false;
25489
25490 - for(i = 0; i < PREALLOCATED_PMDS; i++) {
25491 - pmd_t *pmd = (pmd_t *)__get_free_page(PGALLOC_GFP);
25492 - if (pmd == NULL)
25493 + for(i = 0; i < PREALLOCATED_PXDS; i++) {
25494 + pxd_t *pxd = (pxd_t *)__get_free_page(PGALLOC_GFP);
25495 + if (pxd == NULL)
25496 failed = true;
25497 - pmds[i] = pmd;
25498 + pxds[i] = pxd;
25499 }
25500
25501 if (failed) {
25502 - free_pmds(pmds);
25503 + free_pxds(pxds);
25504 return -ENOMEM;
25505 }
25506
25507 @@ -212,51 +269,55 @@ static int preallocate_pmds(pmd_t *pmds[])
25508 * preallocate which never got a corresponding vma will need to be
25509 * freed manually.
25510 */
25511 -static void pgd_mop_up_pmds(struct mm_struct *mm, pgd_t *pgdp)
25512 +static void pgd_mop_up_pxds(struct mm_struct *mm, pgd_t *pgdp)
25513 {
25514 int i;
25515
25516 - for(i = 0; i < PREALLOCATED_PMDS; i++) {
25517 + for(i = 0; i < PREALLOCATED_PXDS; i++) {
25518 pgd_t pgd = pgdp[i];
25519
25520 if (pgd_val(pgd) != 0) {
25521 - pmd_t *pmd = (pmd_t *)pgd_page_vaddr(pgd);
25522 + pxd_t *pxd = (pxd_t *)pgd_page_vaddr(pgd);
25523
25524 - pgdp[i] = native_make_pgd(0);
25525 + set_pgd(pgdp + i, native_make_pgd(0));
25526
25527 - paravirt_release_pmd(pgd_val(pgd) >> PAGE_SHIFT);
25528 - pmd_free(mm, pmd);
25529 + paravirt_release_pxd(pgd_val(pgd) >> PAGE_SHIFT);
25530 + pxd_free(mm, pxd);
25531 }
25532 }
25533 }
25534
25535 -static void pgd_prepopulate_pmd(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmds[])
25536 +static void pgd_prepopulate_pxd(struct mm_struct *mm, pgd_t *pgd, pxd_t *pxds[])
25537 {
25538 - pud_t *pud;
25539 + pyd_t *pyd;
25540 unsigned long addr;
25541 int i;
25542
25543 - if (PREALLOCATED_PMDS == 0) /* Work around gcc-3.4.x bug */
25544 + if (PREALLOCATED_PXDS == 0) /* Work around gcc-3.4.x bug */
25545 return;
25546
25547 - pud = pud_offset(pgd, 0);
25548 +#ifdef CONFIG_X86_64
25549 + pyd = pyd_offset(mm, 0L);
25550 +#else
25551 + pyd = pyd_offset(pgd, 0L);
25552 +#endif
25553
25554 - for (addr = i = 0; i < PREALLOCATED_PMDS;
25555 - i++, pud++, addr += PUD_SIZE) {
25556 - pmd_t *pmd = pmds[i];
25557 + for (addr = i = 0; i < PREALLOCATED_PXDS;
25558 + i++, pyd++, addr += PYD_SIZE) {
25559 + pxd_t *pxd = pxds[i];
25560
25561 if (i >= KERNEL_PGD_BOUNDARY)
25562 - memcpy(pmd, (pmd_t *)pgd_page_vaddr(swapper_pg_dir[i]),
25563 - sizeof(pmd_t) * PTRS_PER_PMD);
25564 + memcpy(pxd, (pxd_t *)pgd_page_vaddr(swapper_pg_dir[i]),
25565 + sizeof(pxd_t) * PTRS_PER_PMD);
25566
25567 - pud_populate(mm, pud, pmd);
25568 + pyd_populate(mm, pyd, pxd);
25569 }
25570 }
25571
25572 pgd_t *pgd_alloc(struct mm_struct *mm)
25573 {
25574 pgd_t *pgd;
25575 - pmd_t *pmds[PREALLOCATED_PMDS];
25576 + pxd_t *pxds[PREALLOCATED_PXDS];
25577
25578 pgd = (pgd_t *)__get_free_page(PGALLOC_GFP);
25579
25580 @@ -265,11 +326,11 @@ pgd_t *pgd_alloc(struct mm_struct *mm)
25581
25582 mm->pgd = pgd;
25583
25584 - if (preallocate_pmds(pmds) != 0)
25585 + if (preallocate_pxds(pxds) != 0)
25586 goto out_free_pgd;
25587
25588 if (paravirt_pgd_alloc(mm) != 0)
25589 - goto out_free_pmds;
25590 + goto out_free_pxds;
25591
25592 /*
25593 * Make sure that pre-populating the pmds is atomic with
25594 @@ -279,14 +340,14 @@ pgd_t *pgd_alloc(struct mm_struct *mm)
25595 spin_lock(&pgd_lock);
25596
25597 pgd_ctor(mm, pgd);
25598 - pgd_prepopulate_pmd(mm, pgd, pmds);
25599 + pgd_prepopulate_pxd(mm, pgd, pxds);
25600
25601 spin_unlock(&pgd_lock);
25602
25603 return pgd;
25604
25605 -out_free_pmds:
25606 - free_pmds(pmds);
25607 +out_free_pxds:
25608 + free_pxds(pxds);
25609 out_free_pgd:
25610 free_page((unsigned long)pgd);
25611 out:
25612 @@ -295,7 +356,7 @@ out:
25613
25614 void pgd_free(struct mm_struct *mm, pgd_t *pgd)
25615 {
25616 - pgd_mop_up_pmds(mm, pgd);
25617 + pgd_mop_up_pxds(mm, pgd);
25618 pgd_dtor(pgd);
25619 paravirt_pgd_free(mm, pgd);
25620 free_page((unsigned long)pgd);
25621 diff --git a/arch/x86/mm/pgtable_32.c b/arch/x86/mm/pgtable_32.c
25622 index a69bcb8..19068ab 100644
25623 --- a/arch/x86/mm/pgtable_32.c
25624 +++ b/arch/x86/mm/pgtable_32.c
25625 @@ -47,10 +47,13 @@ void set_pte_vaddr(unsigned long vaddr, pte_t pteval)
25626 return;
25627 }
25628 pte = pte_offset_kernel(pmd, vaddr);
25629 +
25630 + pax_open_kernel();
25631 if (pte_val(pteval))
25632 set_pte_at(&init_mm, vaddr, pte, pteval);
25633 else
25634 pte_clear(&init_mm, vaddr, pte);
25635 + pax_close_kernel();
25636
25637 /*
25638 * It's enough to flush this one mapping.
25639 diff --git a/arch/x86/mm/setup_nx.c b/arch/x86/mm/setup_nx.c
25640 index 410531d..0f16030 100644
25641 --- a/arch/x86/mm/setup_nx.c
25642 +++ b/arch/x86/mm/setup_nx.c
25643 @@ -5,8 +5,10 @@
25644 #include <asm/pgtable.h>
25645 #include <asm/proto.h>
25646
25647 +#if defined(CONFIG_X86_64) || defined(CONFIG_X86_PAE)
25648 static int disable_nx __cpuinitdata;
25649
25650 +#ifndef CONFIG_PAX_PAGEEXEC
25651 /*
25652 * noexec = on|off
25653 *
25654 @@ -28,12 +30,17 @@ static int __init noexec_setup(char *str)
25655 return 0;
25656 }
25657 early_param("noexec", noexec_setup);
25658 +#endif
25659 +
25660 +#endif
25661
25662 void __cpuinit x86_configure_nx(void)
25663 {
25664 +#if defined(CONFIG_X86_64) || defined(CONFIG_X86_PAE)
25665 if (cpu_has_nx && !disable_nx)
25666 __supported_pte_mask |= _PAGE_NX;
25667 else
25668 +#endif
25669 __supported_pte_mask &= ~_PAGE_NX;
25670 }
25671
25672 diff --git a/arch/x86/mm/tlb.c b/arch/x86/mm/tlb.c
25673 index 5e57e11..64874249 100644
25674 --- a/arch/x86/mm/tlb.c
25675 +++ b/arch/x86/mm/tlb.c
25676 @@ -66,7 +66,11 @@ void leave_mm(int cpu)
25677 BUG();
25678 if (cpumask_test_cpu(cpu, mm_cpumask(active_mm))) {
25679 cpumask_clear_cpu(cpu, mm_cpumask(active_mm));
25680 +
25681 +#ifndef CONFIG_PAX_PER_CPU_PGD
25682 load_cr3(swapper_pg_dir);
25683 +#endif
25684 +
25685 }
25686 }
25687 EXPORT_SYMBOL_GPL(leave_mm);
25688 diff --git a/arch/x86/net/bpf_jit.S b/arch/x86/net/bpf_jit.S
25689 index 877b9a1..a8ecf42 100644
25690 --- a/arch/x86/net/bpf_jit.S
25691 +++ b/arch/x86/net/bpf_jit.S
25692 @@ -9,6 +9,7 @@
25693 */
25694 #include <linux/linkage.h>
25695 #include <asm/dwarf2.h>
25696 +#include <asm/alternative-asm.h>
25697
25698 /*
25699 * Calling convention :
25700 @@ -35,6 +36,7 @@ sk_load_word_positive_offset:
25701 jle bpf_slow_path_word
25702 mov (SKBDATA,%rsi),%eax
25703 bswap %eax /* ntohl() */
25704 + pax_force_retaddr
25705 ret
25706
25707 sk_load_half:
25708 @@ -52,6 +54,7 @@ sk_load_half_positive_offset:
25709 jle bpf_slow_path_half
25710 movzwl (SKBDATA,%rsi),%eax
25711 rol $8,%ax # ntohs()
25712 + pax_force_retaddr
25713 ret
25714
25715 sk_load_byte:
25716 @@ -66,6 +69,7 @@ sk_load_byte_positive_offset:
25717 cmp %esi,%r9d /* if (offset >= hlen) goto bpf_slow_path_byte */
25718 jle bpf_slow_path_byte
25719 movzbl (SKBDATA,%rsi),%eax
25720 + pax_force_retaddr
25721 ret
25722
25723 /**
25724 @@ -87,6 +91,7 @@ sk_load_byte_msh_positive_offset:
25725 movzbl (SKBDATA,%rsi),%ebx
25726 and $15,%bl
25727 shl $2,%bl
25728 + pax_force_retaddr
25729 ret
25730
25731 /* rsi contains offset and can be scratched */
25732 @@ -109,6 +114,7 @@ bpf_slow_path_word:
25733 js bpf_error
25734 mov -12(%rbp),%eax
25735 bswap %eax
25736 + pax_force_retaddr
25737 ret
25738
25739 bpf_slow_path_half:
25740 @@ -117,12 +123,14 @@ bpf_slow_path_half:
25741 mov -12(%rbp),%ax
25742 rol $8,%ax
25743 movzwl %ax,%eax
25744 + pax_force_retaddr
25745 ret
25746
25747 bpf_slow_path_byte:
25748 bpf_slow_path_common(1)
25749 js bpf_error
25750 movzbl -12(%rbp),%eax
25751 + pax_force_retaddr
25752 ret
25753
25754 bpf_slow_path_byte_msh:
25755 @@ -133,6 +141,7 @@ bpf_slow_path_byte_msh:
25756 and $15,%al
25757 shl $2,%al
25758 xchg %eax,%ebx
25759 + pax_force_retaddr
25760 ret
25761
25762 #define sk_negative_common(SIZE) \
25763 @@ -157,6 +166,7 @@ sk_load_word_negative_offset:
25764 sk_negative_common(4)
25765 mov (%rax), %eax
25766 bswap %eax
25767 + pax_force_retaddr
25768 ret
25769
25770 bpf_slow_path_half_neg:
25771 @@ -168,6 +178,7 @@ sk_load_half_negative_offset:
25772 mov (%rax),%ax
25773 rol $8,%ax
25774 movzwl %ax,%eax
25775 + pax_force_retaddr
25776 ret
25777
25778 bpf_slow_path_byte_neg:
25779 @@ -177,6 +188,7 @@ sk_load_byte_negative_offset:
25780 .globl sk_load_byte_negative_offset
25781 sk_negative_common(1)
25782 movzbl (%rax), %eax
25783 + pax_force_retaddr
25784 ret
25785
25786 bpf_slow_path_byte_msh_neg:
25787 @@ -190,6 +202,7 @@ sk_load_byte_msh_negative_offset:
25788 and $15,%al
25789 shl $2,%al
25790 xchg %eax,%ebx
25791 + pax_force_retaddr
25792 ret
25793
25794 bpf_error:
25795 @@ -197,4 +210,5 @@ bpf_error:
25796 xor %eax,%eax
25797 mov -8(%rbp),%rbx
25798 leaveq
25799 + pax_force_retaddr
25800 ret
25801 diff --git a/arch/x86/net/bpf_jit_comp.c b/arch/x86/net/bpf_jit_comp.c
25802 index 0597f95..a12c36e 100644
25803 --- a/arch/x86/net/bpf_jit_comp.c
25804 +++ b/arch/x86/net/bpf_jit_comp.c
25805 @@ -120,6 +120,11 @@ static inline void bpf_flush_icache(void *start, void *end)
25806 set_fs(old_fs);
25807 }
25808
25809 +struct bpf_jit_work {
25810 + struct work_struct work;
25811 + void *image;
25812 +};
25813 +
25814 #define CHOOSE_LOAD_FUNC(K, func) \
25815 ((int)K < 0 ? ((int)K >= SKF_LL_OFF ? func##_negative_offset : func) : func##_positive_offset)
25816
25817 @@ -146,6 +151,10 @@ void bpf_jit_compile(struct sk_filter *fp)
25818 if (addrs == NULL)
25819 return;
25820
25821 + fp->work = kmalloc(sizeof(*fp->work), GFP_KERNEL);
25822 + if (!fp->work)
25823 + goto out;
25824 +
25825 /* Before first pass, make a rough estimation of addrs[]
25826 * each bpf instruction is translated to less than 64 bytes
25827 */
25828 @@ -589,17 +598,18 @@ cond_branch: f_offset = addrs[i + filter[i].jf] - addrs[i];
25829 break;
25830 default:
25831 /* hmm, too complex filter, give up with jit compiler */
25832 - goto out;
25833 + goto error;
25834 }
25835 ilen = prog - temp;
25836 if (image) {
25837 if (unlikely(proglen + ilen > oldproglen)) {
25838 pr_err("bpb_jit_compile fatal error\n");
25839 - kfree(addrs);
25840 - module_free(NULL, image);
25841 - return;
25842 + module_free_exec(NULL, image);
25843 + goto error;
25844 }
25845 + pax_open_kernel();
25846 memcpy(image + proglen, temp, ilen);
25847 + pax_close_kernel();
25848 }
25849 proglen += ilen;
25850 addrs[i] = proglen;
25851 @@ -620,11 +630,9 @@ cond_branch: f_offset = addrs[i + filter[i].jf] - addrs[i];
25852 break;
25853 }
25854 if (proglen == oldproglen) {
25855 - image = module_alloc(max_t(unsigned int,
25856 - proglen,
25857 - sizeof(struct work_struct)));
25858 + image = module_alloc_exec(proglen);
25859 if (!image)
25860 - goto out;
25861 + goto error;
25862 }
25863 oldproglen = proglen;
25864 }
25865 @@ -640,7 +648,10 @@ cond_branch: f_offset = addrs[i + filter[i].jf] - addrs[i];
25866 bpf_flush_icache(image, image + proglen);
25867
25868 fp->bpf_func = (void *)image;
25869 - }
25870 + } else
25871 +error:
25872 + kfree(fp->work);
25873 +
25874 out:
25875 kfree(addrs);
25876 return;
25877 @@ -648,18 +659,20 @@ out:
25878
25879 static void jit_free_defer(struct work_struct *arg)
25880 {
25881 - module_free(NULL, arg);
25882 + module_free_exec(NULL, ((struct bpf_jit_work *)arg)->image);
25883 + kfree(arg);
25884 }
25885
25886 /* run from softirq, we must use a work_struct to call
25887 - * module_free() from process context
25888 + * module_free_exec() from process context
25889 */
25890 void bpf_jit_free(struct sk_filter *fp)
25891 {
25892 if (fp->bpf_func != sk_run_filter) {
25893 - struct work_struct *work = (struct work_struct *)fp->bpf_func;
25894 + struct work_struct *work = &fp->work->work;
25895
25896 INIT_WORK(work, jit_free_defer);
25897 + fp->work->image = fp->bpf_func;
25898 schedule_work(work);
25899 }
25900 }
25901 diff --git a/arch/x86/oprofile/backtrace.c b/arch/x86/oprofile/backtrace.c
25902 index d6aa6e8..266395a 100644
25903 --- a/arch/x86/oprofile/backtrace.c
25904 +++ b/arch/x86/oprofile/backtrace.c
25905 @@ -46,11 +46,11 @@ dump_user_backtrace_32(struct stack_frame_ia32 *head)
25906 struct stack_frame_ia32 *fp;
25907 unsigned long bytes;
25908
25909 - bytes = copy_from_user_nmi(bufhead, head, sizeof(bufhead));
25910 + bytes = copy_from_user_nmi(bufhead, (const char __force_user *)head, sizeof(bufhead));
25911 if (bytes != sizeof(bufhead))
25912 return NULL;
25913
25914 - fp = (struct stack_frame_ia32 *) compat_ptr(bufhead[0].next_frame);
25915 + fp = (struct stack_frame_ia32 __force_kernel *) compat_ptr(bufhead[0].next_frame);
25916
25917 oprofile_add_trace(bufhead[0].return_address);
25918
25919 @@ -92,7 +92,7 @@ static struct stack_frame *dump_user_backtrace(struct stack_frame *head)
25920 struct stack_frame bufhead[2];
25921 unsigned long bytes;
25922
25923 - bytes = copy_from_user_nmi(bufhead, head, sizeof(bufhead));
25924 + bytes = copy_from_user_nmi(bufhead, (const char __force_user *)head, sizeof(bufhead));
25925 if (bytes != sizeof(bufhead))
25926 return NULL;
25927
25928 @@ -111,7 +111,7 @@ x86_backtrace(struct pt_regs * const regs, unsigned int depth)
25929 {
25930 struct stack_frame *head = (struct stack_frame *)frame_pointer(regs);
25931
25932 - if (!user_mode_vm(regs)) {
25933 + if (!user_mode(regs)) {
25934 unsigned long stack = kernel_stack_pointer(regs);
25935 if (depth)
25936 dump_trace(NULL, regs, (unsigned long *)stack, 0,
25937 diff --git a/arch/x86/pci/mrst.c b/arch/x86/pci/mrst.c
25938 index 140942f..8a5cc55 100644
25939 --- a/arch/x86/pci/mrst.c
25940 +++ b/arch/x86/pci/mrst.c
25941 @@ -238,7 +238,9 @@ int __init pci_mrst_init(void)
25942 printk(KERN_INFO "Intel MID platform detected, using MID PCI ops\n");
25943 pci_mmcfg_late_init();
25944 pcibios_enable_irq = mrst_pci_irq_enable;
25945 - pci_root_ops = pci_mrst_ops;
25946 + pax_open_kernel();
25947 + memcpy((void *)&pci_root_ops, &pci_mrst_ops, sizeof(pci_mrst_ops));
25948 + pax_close_kernel();
25949 pci_soc_mode = 1;
25950 /* Continue with standard init */
25951 return 1;
25952 diff --git a/arch/x86/pci/pcbios.c b/arch/x86/pci/pcbios.c
25953 index da8fe05..7ee6704 100644
25954 --- a/arch/x86/pci/pcbios.c
25955 +++ b/arch/x86/pci/pcbios.c
25956 @@ -79,50 +79,93 @@ union bios32 {
25957 static struct {
25958 unsigned long address;
25959 unsigned short segment;
25960 -} bios32_indirect = { 0, __KERNEL_CS };
25961 +} bios32_indirect __read_only = { 0, __PCIBIOS_CS };
25962
25963 /*
25964 * Returns the entry point for the given service, NULL on error
25965 */
25966
25967 -static unsigned long bios32_service(unsigned long service)
25968 +static unsigned long __devinit bios32_service(unsigned long service)
25969 {
25970 unsigned char return_code; /* %al */
25971 unsigned long address; /* %ebx */
25972 unsigned long length; /* %ecx */
25973 unsigned long entry; /* %edx */
25974 unsigned long flags;
25975 + struct desc_struct d, *gdt;
25976
25977 local_irq_save(flags);
25978 - __asm__("lcall *(%%edi); cld"
25979 +
25980 + gdt = get_cpu_gdt_table(smp_processor_id());
25981 +
25982 + pack_descriptor(&d, 0UL, 0xFFFFFUL, 0x9B, 0xC);
25983 + write_gdt_entry(gdt, GDT_ENTRY_PCIBIOS_CS, &d, DESCTYPE_S);
25984 + pack_descriptor(&d, 0UL, 0xFFFFFUL, 0x93, 0xC);
25985 + write_gdt_entry(gdt, GDT_ENTRY_PCIBIOS_DS, &d, DESCTYPE_S);
25986 +
25987 + __asm__("movw %w7, %%ds; lcall *(%%edi); push %%ss; pop %%ds; cld"
25988 : "=a" (return_code),
25989 "=b" (address),
25990 "=c" (length),
25991 "=d" (entry)
25992 : "0" (service),
25993 "1" (0),
25994 - "D" (&bios32_indirect));
25995 + "D" (&bios32_indirect),
25996 + "r"(__PCIBIOS_DS)
25997 + : "memory");
25998 +
25999 + pax_open_kernel();
26000 + gdt[GDT_ENTRY_PCIBIOS_CS].a = 0;
26001 + gdt[GDT_ENTRY_PCIBIOS_CS].b = 0;
26002 + gdt[GDT_ENTRY_PCIBIOS_DS].a = 0;
26003 + gdt[GDT_ENTRY_PCIBIOS_DS].b = 0;
26004 + pax_close_kernel();
26005 +
26006 local_irq_restore(flags);
26007
26008 switch (return_code) {
26009 - case 0:
26010 - return address + entry;
26011 - case 0x80: /* Not present */
26012 - printk(KERN_WARNING "bios32_service(0x%lx): not present\n", service);
26013 - return 0;
26014 - default: /* Shouldn't happen */
26015 - printk(KERN_WARNING "bios32_service(0x%lx): returned 0x%x -- BIOS bug!\n",
26016 - service, return_code);
26017 + case 0: {
26018 + int cpu;
26019 + unsigned char flags;
26020 +
26021 + printk(KERN_INFO "bios32_service: base:%08lx length:%08lx entry:%08lx\n", address, length, entry);
26022 + if (address >= 0xFFFF0 || length > 0x100000 - address || length <= entry) {
26023 + printk(KERN_WARNING "bios32_service: not valid\n");
26024 return 0;
26025 + }
26026 + address = address + PAGE_OFFSET;
26027 + length += 16UL; /* some BIOSs underreport this... */
26028 + flags = 4;
26029 + if (length >= 64*1024*1024) {
26030 + length >>= PAGE_SHIFT;
26031 + flags |= 8;
26032 + }
26033 +
26034 + for (cpu = 0; cpu < nr_cpu_ids; cpu++) {
26035 + gdt = get_cpu_gdt_table(cpu);
26036 + pack_descriptor(&d, address, length, 0x9b, flags);
26037 + write_gdt_entry(gdt, GDT_ENTRY_PCIBIOS_CS, &d, DESCTYPE_S);
26038 + pack_descriptor(&d, address, length, 0x93, flags);
26039 + write_gdt_entry(gdt, GDT_ENTRY_PCIBIOS_DS, &d, DESCTYPE_S);
26040 + }
26041 + return entry;
26042 + }
26043 + case 0x80: /* Not present */
26044 + printk(KERN_WARNING "bios32_service(0x%lx): not present\n", service);
26045 + return 0;
26046 + default: /* Shouldn't happen */
26047 + printk(KERN_WARNING "bios32_service(0x%lx): returned 0x%x -- BIOS bug!\n",
26048 + service, return_code);
26049 + return 0;
26050 }
26051 }
26052
26053 static struct {
26054 unsigned long address;
26055 unsigned short segment;
26056 -} pci_indirect = { 0, __KERNEL_CS };
26057 +} pci_indirect __read_only = { 0, __PCIBIOS_CS };
26058
26059 -static int pci_bios_present;
26060 +static int pci_bios_present __read_only;
26061
26062 static int __devinit check_pcibios(void)
26063 {
26064 @@ -131,11 +174,13 @@ static int __devinit check_pcibios(void)
26065 unsigned long flags, pcibios_entry;
26066
26067 if ((pcibios_entry = bios32_service(PCI_SERVICE))) {
26068 - pci_indirect.address = pcibios_entry + PAGE_OFFSET;
26069 + pci_indirect.address = pcibios_entry;
26070
26071 local_irq_save(flags);
26072 - __asm__(
26073 - "lcall *(%%edi); cld\n\t"
26074 + __asm__("movw %w6, %%ds\n\t"
26075 + "lcall *%%ss:(%%edi); cld\n\t"
26076 + "push %%ss\n\t"
26077 + "pop %%ds\n\t"
26078 "jc 1f\n\t"
26079 "xor %%ah, %%ah\n"
26080 "1:"
26081 @@ -144,7 +189,8 @@ static int __devinit check_pcibios(void)
26082 "=b" (ebx),
26083 "=c" (ecx)
26084 : "1" (PCIBIOS_PCI_BIOS_PRESENT),
26085 - "D" (&pci_indirect)
26086 + "D" (&pci_indirect),
26087 + "r" (__PCIBIOS_DS)
26088 : "memory");
26089 local_irq_restore(flags);
26090
26091 @@ -189,7 +235,10 @@ static int pci_bios_read(unsigned int seg, unsigned int bus,
26092
26093 switch (len) {
26094 case 1:
26095 - __asm__("lcall *(%%esi); cld\n\t"
26096 + __asm__("movw %w6, %%ds\n\t"
26097 + "lcall *%%ss:(%%esi); cld\n\t"
26098 + "push %%ss\n\t"
26099 + "pop %%ds\n\t"
26100 "jc 1f\n\t"
26101 "xor %%ah, %%ah\n"
26102 "1:"
26103 @@ -198,7 +247,8 @@ static int pci_bios_read(unsigned int seg, unsigned int bus,
26104 : "1" (PCIBIOS_READ_CONFIG_BYTE),
26105 "b" (bx),
26106 "D" ((long)reg),
26107 - "S" (&pci_indirect));
26108 + "S" (&pci_indirect),
26109 + "r" (__PCIBIOS_DS));
26110 /*
26111 * Zero-extend the result beyond 8 bits, do not trust the
26112 * BIOS having done it:
26113 @@ -206,7 +256,10 @@ static int pci_bios_read(unsigned int seg, unsigned int bus,
26114 *value &= 0xff;
26115 break;
26116 case 2:
26117 - __asm__("lcall *(%%esi); cld\n\t"
26118 + __asm__("movw %w6, %%ds\n\t"
26119 + "lcall *%%ss:(%%esi); cld\n\t"
26120 + "push %%ss\n\t"
26121 + "pop %%ds\n\t"
26122 "jc 1f\n\t"
26123 "xor %%ah, %%ah\n"
26124 "1:"
26125 @@ -215,7 +268,8 @@ static int pci_bios_read(unsigned int seg, unsigned int bus,
26126 : "1" (PCIBIOS_READ_CONFIG_WORD),
26127 "b" (bx),
26128 "D" ((long)reg),
26129 - "S" (&pci_indirect));
26130 + "S" (&pci_indirect),
26131 + "r" (__PCIBIOS_DS));
26132 /*
26133 * Zero-extend the result beyond 16 bits, do not trust the
26134 * BIOS having done it:
26135 @@ -223,7 +277,10 @@ static int pci_bios_read(unsigned int seg, unsigned int bus,
26136 *value &= 0xffff;
26137 break;
26138 case 4:
26139 - __asm__("lcall *(%%esi); cld\n\t"
26140 + __asm__("movw %w6, %%ds\n\t"
26141 + "lcall *%%ss:(%%esi); cld\n\t"
26142 + "push %%ss\n\t"
26143 + "pop %%ds\n\t"
26144 "jc 1f\n\t"
26145 "xor %%ah, %%ah\n"
26146 "1:"
26147 @@ -232,7 +289,8 @@ static int pci_bios_read(unsigned int seg, unsigned int bus,
26148 : "1" (PCIBIOS_READ_CONFIG_DWORD),
26149 "b" (bx),
26150 "D" ((long)reg),
26151 - "S" (&pci_indirect));
26152 + "S" (&pci_indirect),
26153 + "r" (__PCIBIOS_DS));
26154 break;
26155 }
26156
26157 @@ -256,7 +314,10 @@ static int pci_bios_write(unsigned int seg, unsigned int bus,
26158
26159 switch (len) {
26160 case 1:
26161 - __asm__("lcall *(%%esi); cld\n\t"
26162 + __asm__("movw %w6, %%ds\n\t"
26163 + "lcall *%%ss:(%%esi); cld\n\t"
26164 + "push %%ss\n\t"
26165 + "pop %%ds\n\t"
26166 "jc 1f\n\t"
26167 "xor %%ah, %%ah\n"
26168 "1:"
26169 @@ -265,10 +326,14 @@ static int pci_bios_write(unsigned int seg, unsigned int bus,
26170 "c" (value),
26171 "b" (bx),
26172 "D" ((long)reg),
26173 - "S" (&pci_indirect));
26174 + "S" (&pci_indirect),
26175 + "r" (__PCIBIOS_DS));
26176 break;
26177 case 2:
26178 - __asm__("lcall *(%%esi); cld\n\t"
26179 + __asm__("movw %w6, %%ds\n\t"
26180 + "lcall *%%ss:(%%esi); cld\n\t"
26181 + "push %%ss\n\t"
26182 + "pop %%ds\n\t"
26183 "jc 1f\n\t"
26184 "xor %%ah, %%ah\n"
26185 "1:"
26186 @@ -277,10 +342,14 @@ static int pci_bios_write(unsigned int seg, unsigned int bus,
26187 "c" (value),
26188 "b" (bx),
26189 "D" ((long)reg),
26190 - "S" (&pci_indirect));
26191 + "S" (&pci_indirect),
26192 + "r" (__PCIBIOS_DS));
26193 break;
26194 case 4:
26195 - __asm__("lcall *(%%esi); cld\n\t"
26196 + __asm__("movw %w6, %%ds\n\t"
26197 + "lcall *%%ss:(%%esi); cld\n\t"
26198 + "push %%ss\n\t"
26199 + "pop %%ds\n\t"
26200 "jc 1f\n\t"
26201 "xor %%ah, %%ah\n"
26202 "1:"
26203 @@ -289,7 +358,8 @@ static int pci_bios_write(unsigned int seg, unsigned int bus,
26204 "c" (value),
26205 "b" (bx),
26206 "D" ((long)reg),
26207 - "S" (&pci_indirect));
26208 + "S" (&pci_indirect),
26209 + "r" (__PCIBIOS_DS));
26210 break;
26211 }
26212
26213 @@ -394,10 +464,13 @@ struct irq_routing_table * pcibios_get_irq_routing_table(void)
26214
26215 DBG("PCI: Fetching IRQ routing table... ");
26216 __asm__("push %%es\n\t"
26217 + "movw %w8, %%ds\n\t"
26218 "push %%ds\n\t"
26219 "pop %%es\n\t"
26220 - "lcall *(%%esi); cld\n\t"
26221 + "lcall *%%ss:(%%esi); cld\n\t"
26222 "pop %%es\n\t"
26223 + "push %%ss\n\t"
26224 + "pop %%ds\n"
26225 "jc 1f\n\t"
26226 "xor %%ah, %%ah\n"
26227 "1:"
26228 @@ -408,7 +481,8 @@ struct irq_routing_table * pcibios_get_irq_routing_table(void)
26229 "1" (0),
26230 "D" ((long) &opt),
26231 "S" (&pci_indirect),
26232 - "m" (opt)
26233 + "m" (opt),
26234 + "r" (__PCIBIOS_DS)
26235 : "memory");
26236 DBG("OK ret=%d, size=%d, map=%x\n", ret, opt.size, map);
26237 if (ret & 0xff00)
26238 @@ -432,7 +506,10 @@ int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq)
26239 {
26240 int ret;
26241
26242 - __asm__("lcall *(%%esi); cld\n\t"
26243 + __asm__("movw %w5, %%ds\n\t"
26244 + "lcall *%%ss:(%%esi); cld\n\t"
26245 + "push %%ss\n\t"
26246 + "pop %%ds\n"
26247 "jc 1f\n\t"
26248 "xor %%ah, %%ah\n"
26249 "1:"
26250 @@ -440,7 +517,8 @@ int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq)
26251 : "0" (PCIBIOS_SET_PCI_HW_INT),
26252 "b" ((dev->bus->number << 8) | dev->devfn),
26253 "c" ((irq << 8) | (pin + 10)),
26254 - "S" (&pci_indirect));
26255 + "S" (&pci_indirect),
26256 + "r" (__PCIBIOS_DS));
26257 return !(ret & 0xff00);
26258 }
26259 EXPORT_SYMBOL(pcibios_set_irq_routing);
26260 diff --git a/arch/x86/platform/efi/efi_32.c b/arch/x86/platform/efi/efi_32.c
26261 index 40e4469..1ab536e 100644
26262 --- a/arch/x86/platform/efi/efi_32.c
26263 +++ b/arch/x86/platform/efi/efi_32.c
26264 @@ -44,11 +44,22 @@ void efi_call_phys_prelog(void)
26265 {
26266 struct desc_ptr gdt_descr;
26267
26268 +#ifdef CONFIG_PAX_KERNEXEC
26269 + struct desc_struct d;
26270 +#endif
26271 +
26272 local_irq_save(efi_rt_eflags);
26273
26274 load_cr3(initial_page_table);
26275 __flush_tlb_all();
26276
26277 +#ifdef CONFIG_PAX_KERNEXEC
26278 + pack_descriptor(&d, 0, 0xFFFFF, 0x9B, 0xC);
26279 + write_gdt_entry(get_cpu_gdt_table(0), GDT_ENTRY_KERNEXEC_EFI_CS, &d, DESCTYPE_S);
26280 + pack_descriptor(&d, 0, 0xFFFFF, 0x93, 0xC);
26281 + write_gdt_entry(get_cpu_gdt_table(0), GDT_ENTRY_KERNEXEC_EFI_DS, &d, DESCTYPE_S);
26282 +#endif
26283 +
26284 gdt_descr.address = __pa(get_cpu_gdt_table(0));
26285 gdt_descr.size = GDT_SIZE - 1;
26286 load_gdt(&gdt_descr);
26287 @@ -58,6 +69,14 @@ void efi_call_phys_epilog(void)
26288 {
26289 struct desc_ptr gdt_descr;
26290
26291 +#ifdef CONFIG_PAX_KERNEXEC
26292 + struct desc_struct d;
26293 +
26294 + memset(&d, 0, sizeof d);
26295 + write_gdt_entry(get_cpu_gdt_table(0), GDT_ENTRY_KERNEXEC_EFI_CS, &d, DESCTYPE_S);
26296 + write_gdt_entry(get_cpu_gdt_table(0), GDT_ENTRY_KERNEXEC_EFI_DS, &d, DESCTYPE_S);
26297 +#endif
26298 +
26299 gdt_descr.address = (unsigned long)get_cpu_gdt_table(0);
26300 gdt_descr.size = GDT_SIZE - 1;
26301 load_gdt(&gdt_descr);
26302 diff --git a/arch/x86/platform/efi/efi_stub_32.S b/arch/x86/platform/efi/efi_stub_32.S
26303 index fbe66e6..eae5e38 100644
26304 --- a/arch/x86/platform/efi/efi_stub_32.S
26305 +++ b/arch/x86/platform/efi/efi_stub_32.S
26306 @@ -6,7 +6,9 @@
26307 */
26308
26309 #include <linux/linkage.h>
26310 +#include <linux/init.h>
26311 #include <asm/page_types.h>
26312 +#include <asm/segment.h>
26313
26314 /*
26315 * efi_call_phys(void *, ...) is a function with variable parameters.
26316 @@ -20,7 +22,7 @@
26317 * service functions will comply with gcc calling convention, too.
26318 */
26319
26320 -.text
26321 +__INIT
26322 ENTRY(efi_call_phys)
26323 /*
26324 * 0. The function can only be called in Linux kernel. So CS has been
26325 @@ -36,10 +38,24 @@ ENTRY(efi_call_phys)
26326 * The mapping of lower virtual memory has been created in prelog and
26327 * epilog.
26328 */
26329 - movl $1f, %edx
26330 - subl $__PAGE_OFFSET, %edx
26331 - jmp *%edx
26332 +#ifdef CONFIG_PAX_KERNEXEC
26333 + movl $(__KERNEXEC_EFI_DS), %edx
26334 + mov %edx, %ds
26335 + mov %edx, %es
26336 + mov %edx, %ss
26337 + addl $2f,(1f)
26338 + ljmp *(1f)
26339 +
26340 +__INITDATA
26341 +1: .long __LOAD_PHYSICAL_ADDR, __KERNEXEC_EFI_CS
26342 +.previous
26343 +
26344 +2:
26345 + subl $2b,(1b)
26346 +#else
26347 + jmp 1f-__PAGE_OFFSET
26348 1:
26349 +#endif
26350
26351 /*
26352 * 2. Now on the top of stack is the return
26353 @@ -47,14 +63,8 @@ ENTRY(efi_call_phys)
26354 * parameter 2, ..., param n. To make things easy, we save the return
26355 * address of efi_call_phys in a global variable.
26356 */
26357 - popl %edx
26358 - movl %edx, saved_return_addr
26359 - /* get the function pointer into ECX*/
26360 - popl %ecx
26361 - movl %ecx, efi_rt_function_ptr
26362 - movl $2f, %edx
26363 - subl $__PAGE_OFFSET, %edx
26364 - pushl %edx
26365 + popl (saved_return_addr)
26366 + popl (efi_rt_function_ptr)
26367
26368 /*
26369 * 3. Clear PG bit in %CR0.
26370 @@ -73,9 +83,8 @@ ENTRY(efi_call_phys)
26371 /*
26372 * 5. Call the physical function.
26373 */
26374 - jmp *%ecx
26375 + call *(efi_rt_function_ptr-__PAGE_OFFSET)
26376
26377 -2:
26378 /*
26379 * 6. After EFI runtime service returns, control will return to
26380 * following instruction. We'd better readjust stack pointer first.
26381 @@ -88,35 +97,36 @@ ENTRY(efi_call_phys)
26382 movl %cr0, %edx
26383 orl $0x80000000, %edx
26384 movl %edx, %cr0
26385 - jmp 1f
26386 -1:
26387 +
26388 /*
26389 * 8. Now restore the virtual mode from flat mode by
26390 * adding EIP with PAGE_OFFSET.
26391 */
26392 - movl $1f, %edx
26393 - jmp *%edx
26394 +#ifdef CONFIG_PAX_KERNEXEC
26395 + movl $(__KERNEL_DS), %edx
26396 + mov %edx, %ds
26397 + mov %edx, %es
26398 + mov %edx, %ss
26399 + ljmp $(__KERNEL_CS),$1f
26400 +#else
26401 + jmp 1f+__PAGE_OFFSET
26402 +#endif
26403 1:
26404
26405 /*
26406 * 9. Balance the stack. And because EAX contain the return value,
26407 * we'd better not clobber it.
26408 */
26409 - leal efi_rt_function_ptr, %edx
26410 - movl (%edx), %ecx
26411 - pushl %ecx
26412 + pushl (efi_rt_function_ptr)
26413
26414 /*
26415 - * 10. Push the saved return address onto the stack and return.
26416 + * 10. Return to the saved return address.
26417 */
26418 - leal saved_return_addr, %edx
26419 - movl (%edx), %ecx
26420 - pushl %ecx
26421 - ret
26422 + jmpl *(saved_return_addr)
26423 ENDPROC(efi_call_phys)
26424 .previous
26425
26426 -.data
26427 +__INITDATA
26428 saved_return_addr:
26429 .long 0
26430 efi_rt_function_ptr:
26431 diff --git a/arch/x86/platform/efi/efi_stub_64.S b/arch/x86/platform/efi/efi_stub_64.S
26432 index 4c07cca..2c8427d 100644
26433 --- a/arch/x86/platform/efi/efi_stub_64.S
26434 +++ b/arch/x86/platform/efi/efi_stub_64.S
26435 @@ -7,6 +7,7 @@
26436 */
26437
26438 #include <linux/linkage.h>
26439 +#include <asm/alternative-asm.h>
26440
26441 #define SAVE_XMM \
26442 mov %rsp, %rax; \
26443 @@ -40,6 +41,7 @@ ENTRY(efi_call0)
26444 call *%rdi
26445 addq $32, %rsp
26446 RESTORE_XMM
26447 + pax_force_retaddr 0, 1
26448 ret
26449 ENDPROC(efi_call0)
26450
26451 @@ -50,6 +52,7 @@ ENTRY(efi_call1)
26452 call *%rdi
26453 addq $32, %rsp
26454 RESTORE_XMM
26455 + pax_force_retaddr 0, 1
26456 ret
26457 ENDPROC(efi_call1)
26458
26459 @@ -60,6 +63,7 @@ ENTRY(efi_call2)
26460 call *%rdi
26461 addq $32, %rsp
26462 RESTORE_XMM
26463 + pax_force_retaddr 0, 1
26464 ret
26465 ENDPROC(efi_call2)
26466
26467 @@ -71,6 +75,7 @@ ENTRY(efi_call3)
26468 call *%rdi
26469 addq $32, %rsp
26470 RESTORE_XMM
26471 + pax_force_retaddr 0, 1
26472 ret
26473 ENDPROC(efi_call3)
26474
26475 @@ -83,6 +88,7 @@ ENTRY(efi_call4)
26476 call *%rdi
26477 addq $32, %rsp
26478 RESTORE_XMM
26479 + pax_force_retaddr 0, 1
26480 ret
26481 ENDPROC(efi_call4)
26482
26483 @@ -96,6 +102,7 @@ ENTRY(efi_call5)
26484 call *%rdi
26485 addq $48, %rsp
26486 RESTORE_XMM
26487 + pax_force_retaddr 0, 1
26488 ret
26489 ENDPROC(efi_call5)
26490
26491 @@ -112,5 +119,6 @@ ENTRY(efi_call6)
26492 call *%rdi
26493 addq $48, %rsp
26494 RESTORE_XMM
26495 + pax_force_retaddr 0, 1
26496 ret
26497 ENDPROC(efi_call6)
26498 diff --git a/arch/x86/platform/mrst/mrst.c b/arch/x86/platform/mrst/mrst.c
26499 index fd41a92..9c33628 100644
26500 --- a/arch/x86/platform/mrst/mrst.c
26501 +++ b/arch/x86/platform/mrst/mrst.c
26502 @@ -78,13 +78,15 @@ struct sfi_rtc_table_entry sfi_mrtc_array[SFI_MRTC_MAX];
26503 EXPORT_SYMBOL_GPL(sfi_mrtc_array);
26504 int sfi_mrtc_num;
26505
26506 -static void mrst_power_off(void)
26507 +static __noreturn void mrst_power_off(void)
26508 {
26509 + BUG();
26510 }
26511
26512 -static void mrst_reboot(void)
26513 +static __noreturn void mrst_reboot(void)
26514 {
26515 intel_scu_ipc_simple_command(IPCMSG_COLD_BOOT, 0);
26516 + BUG();
26517 }
26518
26519 /* parse all the mtimer info to a static mtimer array */
26520 diff --git a/arch/x86/power/cpu.c b/arch/x86/power/cpu.c
26521 index 218cdb1..fd55c08 100644
26522 --- a/arch/x86/power/cpu.c
26523 +++ b/arch/x86/power/cpu.c
26524 @@ -132,7 +132,7 @@ static void do_fpu_end(void)
26525 static void fix_processor_context(void)
26526 {
26527 int cpu = smp_processor_id();
26528 - struct tss_struct *t = &per_cpu(init_tss, cpu);
26529 + struct tss_struct *t = init_tss + cpu;
26530
26531 set_tss_desc(cpu, t); /*
26532 * This just modifies memory; should not be
26533 @@ -142,7 +142,9 @@ static void fix_processor_context(void)
26534 */
26535
26536 #ifdef CONFIG_X86_64
26537 + pax_open_kernel();
26538 get_cpu_gdt_table(cpu)[GDT_ENTRY_TSS].type = 9;
26539 + pax_close_kernel();
26540
26541 syscall_init(); /* This sets MSR_*STAR and related */
26542 #endif
26543 diff --git a/arch/x86/realmode/init.c b/arch/x86/realmode/init.c
26544 index cbca565..35ce1d7 100644
26545 --- a/arch/x86/realmode/init.c
26546 +++ b/arch/x86/realmode/init.c
26547 @@ -62,7 +62,13 @@ void __init setup_real_mode(void)
26548 __va(real_mode_header->trampoline_header);
26549
26550 #ifdef CONFIG_X86_32
26551 - trampoline_header->start = __pa(startup_32_smp);
26552 + trampoline_header->start = __pa(ktla_ktva(startup_32_smp));
26553 +
26554 +#ifdef CONFIG_PAX_KERNEXEC
26555 + trampoline_header->start -= LOAD_PHYSICAL_ADDR;
26556 +#endif
26557 +
26558 + trampoline_header->boot_cs = __BOOT_CS;
26559 trampoline_header->gdt_limit = __BOOT_DS + 7;
26560 trampoline_header->gdt_base = __pa(boot_gdt);
26561 #else
26562 diff --git a/arch/x86/realmode/rm/Makefile b/arch/x86/realmode/rm/Makefile
26563 index 5b84a2d..a004393 100644
26564 --- a/arch/x86/realmode/rm/Makefile
26565 +++ b/arch/x86/realmode/rm/Makefile
26566 @@ -78,5 +78,8 @@ KBUILD_CFLAGS := $(LINUXINCLUDE) -m32 -g -Os -D_SETUP -D__KERNEL__ -D_WAKEUP \
26567 $(call cc-option, -fno-unit-at-a-time)) \
26568 $(call cc-option, -fno-stack-protector) \
26569 $(call cc-option, -mpreferred-stack-boundary=2)
26570 +ifdef CONSTIFY_PLUGIN
26571 +KBUILD_CFLAGS += $(CONSTIFY_PLUGIN) -fplugin-arg-constify_plugin-no-constify
26572 +endif
26573 KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__
26574 GCOV_PROFILE := n
26575 diff --git a/arch/x86/realmode/rm/trampoline_32.S b/arch/x86/realmode/rm/trampoline_32.S
26576 index c1b2791..f9e31c7 100644
26577 --- a/arch/x86/realmode/rm/trampoline_32.S
26578 +++ b/arch/x86/realmode/rm/trampoline_32.S
26579 @@ -25,6 +25,12 @@
26580 #include <asm/page_types.h>
26581 #include "realmode.h"
26582
26583 +#ifdef CONFIG_PAX_KERNEXEC
26584 +#define ta(X) (X)
26585 +#else
26586 +#define ta(X) (pa_ ## X)
26587 +#endif
26588 +
26589 .text
26590 .code16
26591
26592 @@ -39,8 +45,6 @@ ENTRY(trampoline_start)
26593
26594 cli # We should be safe anyway
26595
26596 - movl tr_start, %eax # where we need to go
26597 -
26598 movl $0xA5A5A5A5, trampoline_status
26599 # write marker for master knows we're running
26600
26601 @@ -56,7 +60,7 @@ ENTRY(trampoline_start)
26602 movw $1, %dx # protected mode (PE) bit
26603 lmsw %dx # into protected mode
26604
26605 - ljmpl $__BOOT_CS, $pa_startup_32
26606 + ljmpl *(trampoline_header)
26607
26608 .section ".text32","ax"
26609 .code32
26610 @@ -67,7 +71,7 @@ ENTRY(startup_32) # note: also used from wakeup_asm.S
26611 .balign 8
26612 GLOBAL(trampoline_header)
26613 tr_start: .space 4
26614 - tr_gdt_pad: .space 2
26615 + tr_boot_cs: .space 2
26616 tr_gdt: .space 6
26617 END(trampoline_header)
26618
26619 diff --git a/arch/x86/realmode/rm/trampoline_64.S b/arch/x86/realmode/rm/trampoline_64.S
26620 index bb360dc..3e5945f 100644
26621 --- a/arch/x86/realmode/rm/trampoline_64.S
26622 +++ b/arch/x86/realmode/rm/trampoline_64.S
26623 @@ -107,7 +107,7 @@ ENTRY(startup_32)
26624 wrmsr
26625
26626 # Enable paging and in turn activate Long Mode
26627 - movl $(X86_CR0_PG | X86_CR0_WP | X86_CR0_PE), %eax
26628 + movl $(X86_CR0_PG | X86_CR0_PE), %eax
26629 movl %eax, %cr0
26630
26631 /*
26632 diff --git a/arch/x86/tools/relocs.c b/arch/x86/tools/relocs.c
26633 index 5a1847d..deccb30 100644
26634 --- a/arch/x86/tools/relocs.c
26635 +++ b/arch/x86/tools/relocs.c
26636 @@ -12,10 +12,13 @@
26637 #include <regex.h>
26638 #include <tools/le_byteshift.h>
26639
26640 +#include "../../../include/generated/autoconf.h"
26641 +
26642 static void die(char *fmt, ...);
26643
26644 #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
26645 static Elf32_Ehdr ehdr;
26646 +static Elf32_Phdr *phdr;
26647 static unsigned long reloc_count, reloc_idx;
26648 static unsigned long *relocs;
26649 static unsigned long reloc16_count, reloc16_idx;
26650 @@ -330,9 +333,39 @@ static void read_ehdr(FILE *fp)
26651 }
26652 }
26653
26654 +static void read_phdrs(FILE *fp)
26655 +{
26656 + unsigned int i;
26657 +
26658 + phdr = calloc(ehdr.e_phnum, sizeof(Elf32_Phdr));
26659 + if (!phdr) {
26660 + die("Unable to allocate %d program headers\n",
26661 + ehdr.e_phnum);
26662 + }
26663 + if (fseek(fp, ehdr.e_phoff, SEEK_SET) < 0) {
26664 + die("Seek to %d failed: %s\n",
26665 + ehdr.e_phoff, strerror(errno));
26666 + }
26667 + if (fread(phdr, sizeof(*phdr), ehdr.e_phnum, fp) != ehdr.e_phnum) {
26668 + die("Cannot read ELF program headers: %s\n",
26669 + strerror(errno));
26670 + }
26671 + for(i = 0; i < ehdr.e_phnum; i++) {
26672 + phdr[i].p_type = elf32_to_cpu(phdr[i].p_type);
26673 + phdr[i].p_offset = elf32_to_cpu(phdr[i].p_offset);
26674 + phdr[i].p_vaddr = elf32_to_cpu(phdr[i].p_vaddr);
26675 + phdr[i].p_paddr = elf32_to_cpu(phdr[i].p_paddr);
26676 + phdr[i].p_filesz = elf32_to_cpu(phdr[i].p_filesz);
26677 + phdr[i].p_memsz = elf32_to_cpu(phdr[i].p_memsz);
26678 + phdr[i].p_flags = elf32_to_cpu(phdr[i].p_flags);
26679 + phdr[i].p_align = elf32_to_cpu(phdr[i].p_align);
26680 + }
26681 +
26682 +}
26683 +
26684 static void read_shdrs(FILE *fp)
26685 {
26686 - int i;
26687 + unsigned int i;
26688 Elf32_Shdr shdr;
26689
26690 secs = calloc(ehdr.e_shnum, sizeof(struct section));
26691 @@ -367,7 +400,7 @@ static void read_shdrs(FILE *fp)
26692
26693 static void read_strtabs(FILE *fp)
26694 {
26695 - int i;
26696 + unsigned int i;
26697 for (i = 0; i < ehdr.e_shnum; i++) {
26698 struct section *sec = &secs[i];
26699 if (sec->shdr.sh_type != SHT_STRTAB) {
26700 @@ -392,7 +425,7 @@ static void read_strtabs(FILE *fp)
26701
26702 static void read_symtabs(FILE *fp)
26703 {
26704 - int i,j;
26705 + unsigned int i,j;
26706 for (i = 0; i < ehdr.e_shnum; i++) {
26707 struct section *sec = &secs[i];
26708 if (sec->shdr.sh_type != SHT_SYMTAB) {
26709 @@ -423,9 +456,11 @@ static void read_symtabs(FILE *fp)
26710 }
26711
26712
26713 -static void read_relocs(FILE *fp)
26714 +static void read_relocs(FILE *fp, int use_real_mode)
26715 {
26716 - int i,j;
26717 + unsigned int i,j;
26718 + uint32_t base;
26719 +
26720 for (i = 0; i < ehdr.e_shnum; i++) {
26721 struct section *sec = &secs[i];
26722 if (sec->shdr.sh_type != SHT_REL) {
26723 @@ -445,9 +480,22 @@ static void read_relocs(FILE *fp)
26724 die("Cannot read symbol table: %s\n",
26725 strerror(errno));
26726 }
26727 + base = 0;
26728 +
26729 +#ifdef CONFIG_X86_32
26730 + for (j = 0; !use_real_mode && j < ehdr.e_phnum; j++) {
26731 + if (phdr[j].p_type != PT_LOAD )
26732 + continue;
26733 + 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)
26734 + continue;
26735 + base = CONFIG_PAGE_OFFSET + phdr[j].p_paddr - phdr[j].p_vaddr;
26736 + break;
26737 + }
26738 +#endif
26739 +
26740 for (j = 0; j < sec->shdr.sh_size/sizeof(Elf32_Rel); j++) {
26741 Elf32_Rel *rel = &sec->reltab[j];
26742 - rel->r_offset = elf32_to_cpu(rel->r_offset);
26743 + rel->r_offset = elf32_to_cpu(rel->r_offset) + base;
26744 rel->r_info = elf32_to_cpu(rel->r_info);
26745 }
26746 }
26747 @@ -456,13 +504,13 @@ static void read_relocs(FILE *fp)
26748
26749 static void print_absolute_symbols(void)
26750 {
26751 - int i;
26752 + unsigned int i;
26753 printf("Absolute symbols\n");
26754 printf(" Num: Value Size Type Bind Visibility Name\n");
26755 for (i = 0; i < ehdr.e_shnum; i++) {
26756 struct section *sec = &secs[i];
26757 char *sym_strtab;
26758 - int j;
26759 + unsigned int j;
26760
26761 if (sec->shdr.sh_type != SHT_SYMTAB) {
26762 continue;
26763 @@ -489,14 +537,14 @@ static void print_absolute_symbols(void)
26764
26765 static void print_absolute_relocs(void)
26766 {
26767 - int i, printed = 0;
26768 + unsigned int i, printed = 0;
26769
26770 for (i = 0; i < ehdr.e_shnum; i++) {
26771 struct section *sec = &secs[i];
26772 struct section *sec_applies, *sec_symtab;
26773 char *sym_strtab;
26774 Elf32_Sym *sh_symtab;
26775 - int j;
26776 + unsigned int j;
26777 if (sec->shdr.sh_type != SHT_REL) {
26778 continue;
26779 }
26780 @@ -558,13 +606,13 @@ static void print_absolute_relocs(void)
26781 static void walk_relocs(void (*visit)(Elf32_Rel *rel, Elf32_Sym *sym),
26782 int use_real_mode)
26783 {
26784 - int i;
26785 + unsigned int i;
26786 /* Walk through the relocations */
26787 for (i = 0; i < ehdr.e_shnum; i++) {
26788 char *sym_strtab;
26789 Elf32_Sym *sh_symtab;
26790 struct section *sec_applies, *sec_symtab;
26791 - int j;
26792 + unsigned int j;
26793 struct section *sec = &secs[i];
26794
26795 if (sec->shdr.sh_type != SHT_REL) {
26796 @@ -588,6 +636,24 @@ static void walk_relocs(void (*visit)(Elf32_Rel *rel, Elf32_Sym *sym),
26797 sym = &sh_symtab[ELF32_R_SYM(rel->r_info)];
26798 r_type = ELF32_R_TYPE(rel->r_info);
26799
26800 + if (!use_real_mode) {
26801 + /* Don't relocate actual per-cpu variables, they are absolute indices, not addresses */
26802 + if (!strcmp(sec_name(sym->st_shndx), ".data..percpu") && strcmp(sym_name(sym_strtab, sym), "__per_cpu_load"))
26803 + continue;
26804 +
26805 +#if defined(CONFIG_PAX_KERNEXEC) && defined(CONFIG_X86_32)
26806 + /* Don't relocate actual code, they are relocated implicitly by the base address of KERNEL_CS */
26807 + if (!strcmp(sec_name(sym->st_shndx), ".text.end") && !strcmp(sym_name(sym_strtab, sym), "_etext"))
26808 + continue;
26809 + if (!strcmp(sec_name(sym->st_shndx), ".init.text"))
26810 + continue;
26811 + if (!strcmp(sec_name(sym->st_shndx), ".exit.text"))
26812 + continue;
26813 + if (!strcmp(sec_name(sym->st_shndx), ".text") && strcmp(sym_name(sym_strtab, sym), "__LOAD_PHYSICAL_ADDR"))
26814 + continue;
26815 +#endif
26816 + }
26817 +
26818 shn_abs = sym->st_shndx == SHN_ABS;
26819
26820 switch (r_type) {
26821 @@ -681,7 +747,7 @@ static int write32(unsigned int v, FILE *f)
26822
26823 static void emit_relocs(int as_text, int use_real_mode)
26824 {
26825 - int i;
26826 + unsigned int i;
26827 /* Count how many relocations I have and allocate space for them. */
26828 reloc_count = 0;
26829 walk_relocs(count_reloc, use_real_mode);
26830 @@ -808,10 +874,11 @@ int main(int argc, char **argv)
26831 fname, strerror(errno));
26832 }
26833 read_ehdr(fp);
26834 + read_phdrs(fp);
26835 read_shdrs(fp);
26836 read_strtabs(fp);
26837 read_symtabs(fp);
26838 - read_relocs(fp);
26839 + read_relocs(fp, use_real_mode);
26840 if (show_absolute_syms) {
26841 print_absolute_symbols();
26842 return 0;
26843 diff --git a/arch/x86/vdso/Makefile b/arch/x86/vdso/Makefile
26844 index fd14be1..e3c79c0 100644
26845 --- a/arch/x86/vdso/Makefile
26846 +++ b/arch/x86/vdso/Makefile
26847 @@ -181,7 +181,7 @@ quiet_cmd_vdso = VDSO $@
26848 -Wl,-T,$(filter %.lds,$^) $(filter %.o,$^) && \
26849 sh $(srctree)/$(src)/checkundef.sh '$(NM)' '$@'
26850
26851 -VDSO_LDFLAGS = -fPIC -shared $(call cc-ldoption, -Wl$(comma)--hash-style=sysv)
26852 +VDSO_LDFLAGS = -fPIC -shared -Wl,--no-undefined $(call cc-ldoption, -Wl$(comma)--hash-style=sysv)
26853 GCOV_PROFILE := n
26854
26855 #
26856 diff --git a/arch/x86/vdso/vdso32-setup.c b/arch/x86/vdso/vdso32-setup.c
26857 index 66e6d93..587f435 100644
26858 --- a/arch/x86/vdso/vdso32-setup.c
26859 +++ b/arch/x86/vdso/vdso32-setup.c
26860 @@ -25,6 +25,7 @@
26861 #include <asm/tlbflush.h>
26862 #include <asm/vdso.h>
26863 #include <asm/proto.h>
26864 +#include <asm/mman.h>
26865
26866 enum {
26867 VDSO_DISABLED = 0,
26868 @@ -226,7 +227,7 @@ static inline void map_compat_vdso(int map)
26869 void enable_sep_cpu(void)
26870 {
26871 int cpu = get_cpu();
26872 - struct tss_struct *tss = &per_cpu(init_tss, cpu);
26873 + struct tss_struct *tss = init_tss + cpu;
26874
26875 if (!boot_cpu_has(X86_FEATURE_SEP)) {
26876 put_cpu();
26877 @@ -249,7 +250,7 @@ static int __init gate_vma_init(void)
26878 gate_vma.vm_start = FIXADDR_USER_START;
26879 gate_vma.vm_end = FIXADDR_USER_END;
26880 gate_vma.vm_flags = VM_READ | VM_MAYREAD | VM_EXEC | VM_MAYEXEC;
26881 - gate_vma.vm_page_prot = __P101;
26882 + gate_vma.vm_page_prot = vm_get_page_prot(gate_vma.vm_flags);
26883
26884 return 0;
26885 }
26886 @@ -330,14 +331,14 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
26887 if (compat)
26888 addr = VDSO_HIGH_BASE;
26889 else {
26890 - addr = get_unmapped_area(NULL, 0, PAGE_SIZE, 0, 0);
26891 + addr = get_unmapped_area(NULL, 0, PAGE_SIZE, 0, MAP_EXECUTABLE);
26892 if (IS_ERR_VALUE(addr)) {
26893 ret = addr;
26894 goto up_fail;
26895 }
26896 }
26897
26898 - current->mm->context.vdso = (void *)addr;
26899 + current->mm->context.vdso = addr;
26900
26901 if (compat_uses_vma || !compat) {
26902 /*
26903 @@ -353,11 +354,11 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
26904 }
26905
26906 current_thread_info()->sysenter_return =
26907 - VDSO32_SYMBOL(addr, SYSENTER_RETURN);
26908 + (__force void __user *)VDSO32_SYMBOL(addr, SYSENTER_RETURN);
26909
26910 up_fail:
26911 if (ret)
26912 - current->mm->context.vdso = NULL;
26913 + current->mm->context.vdso = 0;
26914
26915 up_write(&mm->mmap_sem);
26916
26917 @@ -404,8 +405,14 @@ __initcall(ia32_binfmt_init);
26918
26919 const char *arch_vma_name(struct vm_area_struct *vma)
26920 {
26921 - if (vma->vm_mm && vma->vm_start == (long)vma->vm_mm->context.vdso)
26922 + if (vma->vm_mm && vma->vm_start == vma->vm_mm->context.vdso)
26923 return "[vdso]";
26924 +
26925 +#ifdef CONFIG_PAX_SEGMEXEC
26926 + if (vma->vm_mm && vma->vm_mirror && vma->vm_mirror->vm_start == vma->vm_mm->context.vdso)
26927 + return "[vdso]";
26928 +#endif
26929 +
26930 return NULL;
26931 }
26932
26933 @@ -415,7 +422,7 @@ struct vm_area_struct *get_gate_vma(struct mm_struct *mm)
26934 * Check to see if the corresponding task was created in compat vdso
26935 * mode.
26936 */
26937 - if (mm && mm->context.vdso == (void *)VDSO_HIGH_BASE)
26938 + if (mm && mm->context.vdso == VDSO_HIGH_BASE)
26939 return &gate_vma;
26940 return NULL;
26941 }
26942 diff --git a/arch/x86/vdso/vma.c b/arch/x86/vdso/vma.c
26943 index 00aaf04..4a26505 100644
26944 --- a/arch/x86/vdso/vma.c
26945 +++ b/arch/x86/vdso/vma.c
26946 @@ -16,8 +16,6 @@
26947 #include <asm/vdso.h>
26948 #include <asm/page.h>
26949
26950 -unsigned int __read_mostly vdso_enabled = 1;
26951 -
26952 extern char vdso_start[], vdso_end[];
26953 extern unsigned short vdso_sync_cpuid;
26954
26955 @@ -141,7 +139,6 @@ static unsigned long vdso_addr(unsigned long start, unsigned len)
26956 * unaligned here as a result of stack start randomization.
26957 */
26958 addr = PAGE_ALIGN(addr);
26959 - addr = align_addr(addr, NULL, ALIGN_VDSO);
26960
26961 return addr;
26962 }
26963 @@ -154,30 +151,31 @@ static int setup_additional_pages(struct linux_binprm *bprm,
26964 unsigned size)
26965 {
26966 struct mm_struct *mm = current->mm;
26967 - unsigned long addr;
26968 + unsigned long addr = 0;
26969 int ret;
26970
26971 - if (!vdso_enabled)
26972 - return 0;
26973 -
26974 down_write(&mm->mmap_sem);
26975 +
26976 +#ifdef CONFIG_PAX_RANDMMAP
26977 + if (!(mm->pax_flags & MF_PAX_RANDMMAP))
26978 +#endif
26979 +
26980 addr = vdso_addr(mm->start_stack, size);
26981 + addr = align_addr(addr, NULL, ALIGN_VDSO);
26982 addr = get_unmapped_area(NULL, addr, size, 0, 0);
26983 if (IS_ERR_VALUE(addr)) {
26984 ret = addr;
26985 goto up_fail;
26986 }
26987
26988 - current->mm->context.vdso = (void *)addr;
26989 + mm->context.vdso = addr;
26990
26991 ret = install_special_mapping(mm, addr, size,
26992 VM_READ|VM_EXEC|
26993 VM_MAYREAD|VM_MAYWRITE|VM_MAYEXEC,
26994 pages);
26995 - if (ret) {
26996 - current->mm->context.vdso = NULL;
26997 - goto up_fail;
26998 - }
26999 + if (ret)
27000 + mm->context.vdso = 0;
27001
27002 up_fail:
27003 up_write(&mm->mmap_sem);
27004 @@ -197,10 +195,3 @@ int x32_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
27005 vdsox32_size);
27006 }
27007 #endif
27008 -
27009 -static __init int vdso_setup(char *s)
27010 -{
27011 - vdso_enabled = simple_strtoul(s, NULL, 0);
27012 - return 0;
27013 -}
27014 -__setup("vdso=", vdso_setup);
27015 diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
27016 index ff962d4..2bb5e83 100644
27017 --- a/arch/x86/xen/enlighten.c
27018 +++ b/arch/x86/xen/enlighten.c
27019 @@ -97,8 +97,6 @@ EXPORT_SYMBOL_GPL(xen_start_info);
27020
27021 struct shared_info xen_dummy_shared_info;
27022
27023 -void *xen_initial_gdt;
27024 -
27025 RESERVE_BRK(shared_info_page_brk, PAGE_SIZE);
27026 __read_mostly int xen_have_vector_callback;
27027 EXPORT_SYMBOL_GPL(xen_have_vector_callback);
27028 @@ -1175,30 +1173,30 @@ static const struct pv_apic_ops xen_apic_ops __initconst = {
27029 #endif
27030 };
27031
27032 -static void xen_reboot(int reason)
27033 +static __noreturn void xen_reboot(int reason)
27034 {
27035 struct sched_shutdown r = { .reason = reason };
27036
27037 - if (HYPERVISOR_sched_op(SCHEDOP_shutdown, &r))
27038 - BUG();
27039 + HYPERVISOR_sched_op(SCHEDOP_shutdown, &r);
27040 + BUG();
27041 }
27042
27043 -static void xen_restart(char *msg)
27044 +static __noreturn void xen_restart(char *msg)
27045 {
27046 xen_reboot(SHUTDOWN_reboot);
27047 }
27048
27049 -static void xen_emergency_restart(void)
27050 +static __noreturn void xen_emergency_restart(void)
27051 {
27052 xen_reboot(SHUTDOWN_reboot);
27053 }
27054
27055 -static void xen_machine_halt(void)
27056 +static __noreturn void xen_machine_halt(void)
27057 {
27058 xen_reboot(SHUTDOWN_poweroff);
27059 }
27060
27061 -static void xen_machine_power_off(void)
27062 +static __noreturn void xen_machine_power_off(void)
27063 {
27064 if (pm_power_off)
27065 pm_power_off();
27066 @@ -1301,7 +1299,17 @@ asmlinkage void __init xen_start_kernel(void)
27067 __userpte_alloc_gfp &= ~__GFP_HIGHMEM;
27068
27069 /* Work out if we support NX */
27070 - x86_configure_nx();
27071 +#if defined(CONFIG_X86_64) || defined(CONFIG_X86_PAE)
27072 + if ((cpuid_eax(0x80000000) & 0xffff0000) == 0x80000000 &&
27073 + (cpuid_edx(0x80000001) & (1U << (X86_FEATURE_NX & 31)))) {
27074 + unsigned l, h;
27075 +
27076 + __supported_pte_mask |= _PAGE_NX;
27077 + rdmsr(MSR_EFER, l, h);
27078 + l |= EFER_NX;
27079 + wrmsr(MSR_EFER, l, h);
27080 + }
27081 +#endif
27082
27083 xen_setup_features();
27084
27085 @@ -1332,13 +1340,6 @@ asmlinkage void __init xen_start_kernel(void)
27086
27087 machine_ops = xen_machine_ops;
27088
27089 - /*
27090 - * The only reliable way to retain the initial address of the
27091 - * percpu gdt_page is to remember it here, so we can go and
27092 - * mark it RW later, when the initial percpu area is freed.
27093 - */
27094 - xen_initial_gdt = &per_cpu(gdt_page, 0);
27095 -
27096 xen_smp_init();
27097
27098 #ifdef CONFIG_ACPI_NUMA
27099 diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
27100 index 3a73785..0d30df2 100644
27101 --- a/arch/x86/xen/mmu.c
27102 +++ b/arch/x86/xen/mmu.c
27103 @@ -1738,6 +1738,9 @@ pgd_t * __init xen_setup_kernel_pagetable(pgd_t *pgd,
27104 convert_pfn_mfn(init_level4_pgt);
27105 convert_pfn_mfn(level3_ident_pgt);
27106 convert_pfn_mfn(level3_kernel_pgt);
27107 + convert_pfn_mfn(level3_vmalloc_start_pgt);
27108 + convert_pfn_mfn(level3_vmalloc_end_pgt);
27109 + convert_pfn_mfn(level3_vmemmap_pgt);
27110
27111 l3 = m2v(pgd[pgd_index(__START_KERNEL_map)].pgd);
27112 l2 = m2v(l3[pud_index(__START_KERNEL_map)].pud);
27113 @@ -1756,7 +1759,11 @@ pgd_t * __init xen_setup_kernel_pagetable(pgd_t *pgd,
27114 set_page_prot(init_level4_pgt, PAGE_KERNEL_RO);
27115 set_page_prot(level3_ident_pgt, PAGE_KERNEL_RO);
27116 set_page_prot(level3_kernel_pgt, PAGE_KERNEL_RO);
27117 + set_page_prot(level3_vmalloc_start_pgt, PAGE_KERNEL_RO);
27118 + set_page_prot(level3_vmalloc_end_pgt, PAGE_KERNEL_RO);
27119 + set_page_prot(level3_vmemmap_pgt, PAGE_KERNEL_RO);
27120 set_page_prot(level3_user_vsyscall, PAGE_KERNEL_RO);
27121 + set_page_prot(level2_vmemmap_pgt, PAGE_KERNEL_RO);
27122 set_page_prot(level2_kernel_pgt, PAGE_KERNEL_RO);
27123 set_page_prot(level2_fixmap_pgt, PAGE_KERNEL_RO);
27124
27125 @@ -1940,6 +1947,7 @@ static void __init xen_post_allocator_init(void)
27126 pv_mmu_ops.set_pud = xen_set_pud;
27127 #if PAGETABLE_LEVELS == 4
27128 pv_mmu_ops.set_pgd = xen_set_pgd;
27129 + pv_mmu_ops.set_pgd_batched = xen_set_pgd;
27130 #endif
27131
27132 /* This will work as long as patching hasn't happened yet
27133 @@ -2021,6 +2029,7 @@ static const struct pv_mmu_ops xen_mmu_ops __initconst = {
27134 .pud_val = PV_CALLEE_SAVE(xen_pud_val),
27135 .make_pud = PV_CALLEE_SAVE(xen_make_pud),
27136 .set_pgd = xen_set_pgd_hyper,
27137 + .set_pgd_batched = xen_set_pgd_hyper,
27138
27139 .alloc_pud = xen_alloc_pmd_init,
27140 .release_pud = xen_release_pmd_init,
27141 diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c
27142 index afb250d..627075f 100644
27143 --- a/arch/x86/xen/smp.c
27144 +++ b/arch/x86/xen/smp.c
27145 @@ -231,11 +231,6 @@ static void __init xen_smp_prepare_boot_cpu(void)
27146 {
27147 BUG_ON(smp_processor_id() != 0);
27148 native_smp_prepare_boot_cpu();
27149 -
27150 - /* We've switched to the "real" per-cpu gdt, so make sure the
27151 - old memory can be recycled */
27152 - make_lowmem_page_readwrite(xen_initial_gdt);
27153 -
27154 xen_filter_cpu_maps();
27155 xen_setup_vcpu_info_placement();
27156 }
27157 @@ -302,12 +297,12 @@ cpu_initialize_context(unsigned int cpu, struct task_struct *idle)
27158 gdt = get_cpu_gdt_table(cpu);
27159
27160 ctxt->flags = VGCF_IN_KERNEL;
27161 - ctxt->user_regs.ds = __USER_DS;
27162 - ctxt->user_regs.es = __USER_DS;
27163 + ctxt->user_regs.ds = __KERNEL_DS;
27164 + ctxt->user_regs.es = __KERNEL_DS;
27165 ctxt->user_regs.ss = __KERNEL_DS;
27166 #ifdef CONFIG_X86_32
27167 ctxt->user_regs.fs = __KERNEL_PERCPU;
27168 - ctxt->user_regs.gs = __KERNEL_STACK_CANARY;
27169 + savesegment(gs, ctxt->user_regs.gs);
27170 #else
27171 ctxt->gs_base_kernel = per_cpu_offset(cpu);
27172 #endif
27173 @@ -357,13 +352,12 @@ static int __cpuinit xen_cpu_up(unsigned int cpu, struct task_struct *idle)
27174 int rc;
27175
27176 per_cpu(current_task, cpu) = idle;
27177 + per_cpu(current_tinfo, cpu) = &idle->tinfo;
27178 #ifdef CONFIG_X86_32
27179 irq_ctx_init(cpu);
27180 #else
27181 clear_tsk_thread_flag(idle, TIF_FORK);
27182 - per_cpu(kernel_stack, cpu) =
27183 - (unsigned long)task_stack_page(idle) -
27184 - KERNEL_STACK_OFFSET + THREAD_SIZE;
27185 + per_cpu(kernel_stack, cpu) = (unsigned long)task_stack_page(idle) - 16 + THREAD_SIZE;
27186 #endif
27187 xen_setup_runstate_info(cpu);
27188 xen_setup_timer(cpu);
27189 diff --git a/arch/x86/xen/xen-asm_32.S b/arch/x86/xen/xen-asm_32.S
27190 index f9643fc..602e8af 100644
27191 --- a/arch/x86/xen/xen-asm_32.S
27192 +++ b/arch/x86/xen/xen-asm_32.S
27193 @@ -84,14 +84,14 @@ ENTRY(xen_iret)
27194 ESP_OFFSET=4 # bytes pushed onto stack
27195
27196 /*
27197 - * Store vcpu_info pointer for easy access. Do it this way to
27198 - * avoid having to reload %fs
27199 + * Store vcpu_info pointer for easy access.
27200 */
27201 #ifdef CONFIG_SMP
27202 - GET_THREAD_INFO(%eax)
27203 - movl TI_cpu(%eax), %eax
27204 - movl __per_cpu_offset(,%eax,4), %eax
27205 - mov xen_vcpu(%eax), %eax
27206 + push %fs
27207 + mov $(__KERNEL_PERCPU), %eax
27208 + mov %eax, %fs
27209 + mov PER_CPU_VAR(xen_vcpu), %eax
27210 + pop %fs
27211 #else
27212 movl xen_vcpu, %eax
27213 #endif
27214 diff --git a/arch/x86/xen/xen-head.S b/arch/x86/xen/xen-head.S
27215 index aaa7291..3f77960 100644
27216 --- a/arch/x86/xen/xen-head.S
27217 +++ b/arch/x86/xen/xen-head.S
27218 @@ -19,6 +19,17 @@ ENTRY(startup_xen)
27219 #ifdef CONFIG_X86_32
27220 mov %esi,xen_start_info
27221 mov $init_thread_union+THREAD_SIZE,%esp
27222 +#ifdef CONFIG_SMP
27223 + movl $cpu_gdt_table,%edi
27224 + movl $__per_cpu_load,%eax
27225 + movw %ax,__KERNEL_PERCPU + 2(%edi)
27226 + rorl $16,%eax
27227 + movb %al,__KERNEL_PERCPU + 4(%edi)
27228 + movb %ah,__KERNEL_PERCPU + 7(%edi)
27229 + movl $__per_cpu_end - 1,%eax
27230 + subl $__per_cpu_start,%eax
27231 + movw %ax,__KERNEL_PERCPU + 0(%edi)
27232 +#endif
27233 #else
27234 mov %rsi,xen_start_info
27235 mov $init_thread_union+THREAD_SIZE,%rsp
27236 diff --git a/arch/x86/xen/xen-ops.h b/arch/x86/xen/xen-ops.h
27237 index 202d4c1..99b072a 100644
27238 --- a/arch/x86/xen/xen-ops.h
27239 +++ b/arch/x86/xen/xen-ops.h
27240 @@ -10,8 +10,6 @@
27241 extern const char xen_hypervisor_callback[];
27242 extern const char xen_failsafe_callback[];
27243
27244 -extern void *xen_initial_gdt;
27245 -
27246 struct trap_info;
27247 void xen_copy_trap_info(struct trap_info *traps);
27248
27249 diff --git a/arch/xtensa/variants/dc232b/include/variant/core.h b/arch/xtensa/variants/dc232b/include/variant/core.h
27250 index 525bd3d..ef888b1 100644
27251 --- a/arch/xtensa/variants/dc232b/include/variant/core.h
27252 +++ b/arch/xtensa/variants/dc232b/include/variant/core.h
27253 @@ -119,9 +119,9 @@
27254 ----------------------------------------------------------------------*/
27255
27256 #define XCHAL_ICACHE_LINESIZE 32 /* I-cache line size in bytes */
27257 -#define XCHAL_DCACHE_LINESIZE 32 /* D-cache line size in bytes */
27258 #define XCHAL_ICACHE_LINEWIDTH 5 /* log2(I line size in bytes) */
27259 #define XCHAL_DCACHE_LINEWIDTH 5 /* log2(D line size in bytes) */
27260 +#define XCHAL_DCACHE_LINESIZE (_AC(1,UL) << XCHAL_DCACHE_LINEWIDTH) /* D-cache line size in bytes */
27261
27262 #define XCHAL_ICACHE_SIZE 16384 /* I-cache size in bytes or 0 */
27263 #define XCHAL_DCACHE_SIZE 16384 /* D-cache size in bytes or 0 */
27264 diff --git a/arch/xtensa/variants/fsf/include/variant/core.h b/arch/xtensa/variants/fsf/include/variant/core.h
27265 index 2f33760..835e50a 100644
27266 --- a/arch/xtensa/variants/fsf/include/variant/core.h
27267 +++ b/arch/xtensa/variants/fsf/include/variant/core.h
27268 @@ -11,6 +11,7 @@
27269 #ifndef _XTENSA_CORE_H
27270 #define _XTENSA_CORE_H
27271
27272 +#include <linux/const.h>
27273
27274 /****************************************************************************
27275 Parameters Useful for Any Code, USER or PRIVILEGED
27276 @@ -112,9 +113,9 @@
27277 ----------------------------------------------------------------------*/
27278
27279 #define XCHAL_ICACHE_LINESIZE 16 /* I-cache line size in bytes */
27280 -#define XCHAL_DCACHE_LINESIZE 16 /* D-cache line size in bytes */
27281 #define XCHAL_ICACHE_LINEWIDTH 4 /* log2(I line size in bytes) */
27282 #define XCHAL_DCACHE_LINEWIDTH 4 /* log2(D line size in bytes) */
27283 +#define XCHAL_DCACHE_LINESIZE (_AC(1,UL) << XCHAL_DCACHE_LINEWIDTH) /* D-cache line size in bytes */
27284
27285 #define XCHAL_ICACHE_SIZE 8192 /* I-cache size in bytes or 0 */
27286 #define XCHAL_DCACHE_SIZE 8192 /* D-cache size in bytes or 0 */
27287 diff --git a/arch/xtensa/variants/s6000/include/variant/core.h b/arch/xtensa/variants/s6000/include/variant/core.h
27288 index af00795..2bb8105 100644
27289 --- a/arch/xtensa/variants/s6000/include/variant/core.h
27290 +++ b/arch/xtensa/variants/s6000/include/variant/core.h
27291 @@ -11,6 +11,7 @@
27292 #ifndef _XTENSA_CORE_CONFIGURATION_H
27293 #define _XTENSA_CORE_CONFIGURATION_H
27294
27295 +#include <linux/const.h>
27296
27297 /****************************************************************************
27298 Parameters Useful for Any Code, USER or PRIVILEGED
27299 @@ -118,9 +119,9 @@
27300 ----------------------------------------------------------------------*/
27301
27302 #define XCHAL_ICACHE_LINESIZE 16 /* I-cache line size in bytes */
27303 -#define XCHAL_DCACHE_LINESIZE 16 /* D-cache line size in bytes */
27304 #define XCHAL_ICACHE_LINEWIDTH 4 /* log2(I line size in bytes) */
27305 #define XCHAL_DCACHE_LINEWIDTH 4 /* log2(D line size in bytes) */
27306 +#define XCHAL_DCACHE_LINESIZE (_AC(1,UL) << XCHAL_DCACHE_LINEWIDTH) /* D-cache line size in bytes */
27307
27308 #define XCHAL_ICACHE_SIZE 32768 /* I-cache size in bytes or 0 */
27309 #define XCHAL_DCACHE_SIZE 32768 /* D-cache size in bytes or 0 */
27310 diff --git a/block/blk-iopoll.c b/block/blk-iopoll.c
27311 index 58916af..9cb880b 100644
27312 --- a/block/blk-iopoll.c
27313 +++ b/block/blk-iopoll.c
27314 @@ -77,7 +77,7 @@ void blk_iopoll_complete(struct blk_iopoll *iopoll)
27315 }
27316 EXPORT_SYMBOL(blk_iopoll_complete);
27317
27318 -static void blk_iopoll_softirq(struct softirq_action *h)
27319 +static void blk_iopoll_softirq(void)
27320 {
27321 struct list_head *list = &__get_cpu_var(blk_cpu_iopoll);
27322 int rearm = 0, budget = blk_iopoll_budget;
27323 diff --git a/block/blk-map.c b/block/blk-map.c
27324 index 623e1cd..ca1e109 100644
27325 --- a/block/blk-map.c
27326 +++ b/block/blk-map.c
27327 @@ -302,7 +302,7 @@ int blk_rq_map_kern(struct request_queue *q, struct request *rq, void *kbuf,
27328 if (!len || !kbuf)
27329 return -EINVAL;
27330
27331 - do_copy = !blk_rq_aligned(q, addr, len) || object_is_on_stack(kbuf);
27332 + do_copy = !blk_rq_aligned(q, addr, len) || object_starts_on_stack(kbuf);
27333 if (do_copy)
27334 bio = bio_copy_kern(q, kbuf, len, gfp_mask, reading);
27335 else
27336 diff --git a/block/blk-softirq.c b/block/blk-softirq.c
27337 index 467c8de..4bddc6d 100644
27338 --- a/block/blk-softirq.c
27339 +++ b/block/blk-softirq.c
27340 @@ -18,7 +18,7 @@ static DEFINE_PER_CPU(struct list_head, blk_cpu_done);
27341 * Softirq action handler - move entries to local list and loop over them
27342 * while passing them to the queue registered handler.
27343 */
27344 -static void blk_done_softirq(struct softirq_action *h)
27345 +static void blk_done_softirq(void)
27346 {
27347 struct list_head *cpu_list, local_list;
27348
27349 diff --git a/block/bsg.c b/block/bsg.c
27350 index ff64ae3..593560c 100644
27351 --- a/block/bsg.c
27352 +++ b/block/bsg.c
27353 @@ -176,16 +176,24 @@ static int blk_fill_sgv4_hdr_rq(struct request_queue *q, struct request *rq,
27354 struct sg_io_v4 *hdr, struct bsg_device *bd,
27355 fmode_t has_write_perm)
27356 {
27357 + unsigned char tmpcmd[sizeof(rq->__cmd)];
27358 + unsigned char *cmdptr;
27359 +
27360 if (hdr->request_len > BLK_MAX_CDB) {
27361 rq->cmd = kzalloc(hdr->request_len, GFP_KERNEL);
27362 if (!rq->cmd)
27363 return -ENOMEM;
27364 - }
27365 + cmdptr = rq->cmd;
27366 + } else
27367 + cmdptr = tmpcmd;
27368
27369 - if (copy_from_user(rq->cmd, (void __user *)(unsigned long)hdr->request,
27370 + if (copy_from_user(cmdptr, (void __user *)(unsigned long)hdr->request,
27371 hdr->request_len))
27372 return -EFAULT;
27373
27374 + if (cmdptr != rq->cmd)
27375 + memcpy(rq->cmd, cmdptr, hdr->request_len);
27376 +
27377 if (hdr->subprotocol == BSG_SUB_PROTOCOL_SCSI_CMD) {
27378 if (blk_verify_command(rq->cmd, has_write_perm))
27379 return -EPERM;
27380 diff --git a/block/compat_ioctl.c b/block/compat_ioctl.c
27381 index 7c668c8..db3521c 100644
27382 --- a/block/compat_ioctl.c
27383 +++ b/block/compat_ioctl.c
27384 @@ -340,7 +340,7 @@ static int compat_fd_ioctl(struct block_device *bdev, fmode_t mode,
27385 err |= __get_user(f->spec1, &uf->spec1);
27386 err |= __get_user(f->fmt_gap, &uf->fmt_gap);
27387 err |= __get_user(name, &uf->name);
27388 - f->name = compat_ptr(name);
27389 + f->name = (void __force_kernel *)compat_ptr(name);
27390 if (err) {
27391 err = -EFAULT;
27392 goto out;
27393 diff --git a/block/partitions/efi.c b/block/partitions/efi.c
27394 index 6296b40..417c00f 100644
27395 --- a/block/partitions/efi.c
27396 +++ b/block/partitions/efi.c
27397 @@ -234,14 +234,14 @@ static gpt_entry *alloc_read_gpt_entries(struct parsed_partitions *state,
27398 if (!gpt)
27399 return NULL;
27400
27401 + if (!le32_to_cpu(gpt->num_partition_entries))
27402 + return NULL;
27403 + pte = kcalloc(le32_to_cpu(gpt->num_partition_entries), le32_to_cpu(gpt->sizeof_partition_entry), GFP_KERNEL);
27404 + if (!pte)
27405 + return NULL;
27406 +
27407 count = le32_to_cpu(gpt->num_partition_entries) *
27408 le32_to_cpu(gpt->sizeof_partition_entry);
27409 - if (!count)
27410 - return NULL;
27411 - pte = kzalloc(count, GFP_KERNEL);
27412 - if (!pte)
27413 - return NULL;
27414 -
27415 if (read_lba(state, le64_to_cpu(gpt->partition_entry_lba),
27416 (u8 *) pte,
27417 count) < count) {
27418 diff --git a/block/scsi_ioctl.c b/block/scsi_ioctl.c
27419 index 9a87daa..fb17486 100644
27420 --- a/block/scsi_ioctl.c
27421 +++ b/block/scsi_ioctl.c
27422 @@ -223,8 +223,20 @@ EXPORT_SYMBOL(blk_verify_command);
27423 static int blk_fill_sghdr_rq(struct request_queue *q, struct request *rq,
27424 struct sg_io_hdr *hdr, fmode_t mode)
27425 {
27426 - if (copy_from_user(rq->cmd, hdr->cmdp, hdr->cmd_len))
27427 + unsigned char tmpcmd[sizeof(rq->__cmd)];
27428 + unsigned char *cmdptr;
27429 +
27430 + if (rq->cmd != rq->__cmd)
27431 + cmdptr = rq->cmd;
27432 + else
27433 + cmdptr = tmpcmd;
27434 +
27435 + if (copy_from_user(cmdptr, hdr->cmdp, hdr->cmd_len))
27436 return -EFAULT;
27437 +
27438 + if (cmdptr != rq->cmd)
27439 + memcpy(rq->cmd, cmdptr, hdr->cmd_len);
27440 +
27441 if (blk_verify_command(rq->cmd, mode & FMODE_WRITE))
27442 return -EPERM;
27443
27444 @@ -433,6 +445,8 @@ int sg_scsi_ioctl(struct request_queue *q, struct gendisk *disk, fmode_t mode,
27445 int err;
27446 unsigned int in_len, out_len, bytes, opcode, cmdlen;
27447 char *buffer = NULL, sense[SCSI_SENSE_BUFFERSIZE];
27448 + unsigned char tmpcmd[sizeof(rq->__cmd)];
27449 + unsigned char *cmdptr;
27450
27451 if (!sic)
27452 return -EINVAL;
27453 @@ -466,9 +480,18 @@ int sg_scsi_ioctl(struct request_queue *q, struct gendisk *disk, fmode_t mode,
27454 */
27455 err = -EFAULT;
27456 rq->cmd_len = cmdlen;
27457 - if (copy_from_user(rq->cmd, sic->data, cmdlen))
27458 +
27459 + if (rq->cmd != rq->__cmd)
27460 + cmdptr = rq->cmd;
27461 + else
27462 + cmdptr = tmpcmd;
27463 +
27464 + if (copy_from_user(cmdptr, sic->data, cmdlen))
27465 goto error;
27466
27467 + if (rq->cmd != cmdptr)
27468 + memcpy(rq->cmd, cmdptr, cmdlen);
27469 +
27470 if (in_len && copy_from_user(buffer, sic->data + cmdlen, in_len))
27471 goto error;
27472
27473 diff --git a/crypto/cryptd.c b/crypto/cryptd.c
27474 index 671d4d6..5f24030 100644
27475 --- a/crypto/cryptd.c
27476 +++ b/crypto/cryptd.c
27477 @@ -63,7 +63,7 @@ struct cryptd_blkcipher_ctx {
27478
27479 struct cryptd_blkcipher_request_ctx {
27480 crypto_completion_t complete;
27481 -};
27482 +} __no_const;
27483
27484 struct cryptd_hash_ctx {
27485 struct crypto_shash *child;
27486 @@ -80,7 +80,7 @@ struct cryptd_aead_ctx {
27487
27488 struct cryptd_aead_request_ctx {
27489 crypto_completion_t complete;
27490 -};
27491 +} __no_const;
27492
27493 static void cryptd_queue_worker(struct work_struct *work);
27494
27495 diff --git a/drivers/acpi/apei/cper.c b/drivers/acpi/apei/cper.c
27496 index e6defd8..c26a225 100644
27497 --- a/drivers/acpi/apei/cper.c
27498 +++ b/drivers/acpi/apei/cper.c
27499 @@ -38,12 +38,12 @@
27500 */
27501 u64 cper_next_record_id(void)
27502 {
27503 - static atomic64_t seq;
27504 + static atomic64_unchecked_t seq;
27505
27506 - if (!atomic64_read(&seq))
27507 - atomic64_set(&seq, ((u64)get_seconds()) << 32);
27508 + if (!atomic64_read_unchecked(&seq))
27509 + atomic64_set_unchecked(&seq, ((u64)get_seconds()) << 32);
27510
27511 - return atomic64_inc_return(&seq);
27512 + return atomic64_inc_return_unchecked(&seq);
27513 }
27514 EXPORT_SYMBOL_GPL(cper_next_record_id);
27515
27516 diff --git a/drivers/acpi/ec_sys.c b/drivers/acpi/ec_sys.c
27517 index 7586544..636a2f0 100644
27518 --- a/drivers/acpi/ec_sys.c
27519 +++ b/drivers/acpi/ec_sys.c
27520 @@ -12,6 +12,7 @@
27521 #include <linux/acpi.h>
27522 #include <linux/debugfs.h>
27523 #include <linux/module.h>
27524 +#include <linux/uaccess.h>
27525 #include "internal.h"
27526
27527 MODULE_AUTHOR("Thomas Renninger <trenn@suse.de>");
27528 @@ -34,7 +35,7 @@ static ssize_t acpi_ec_read_io(struct file *f, char __user *buf,
27529 * struct acpi_ec *ec = ((struct seq_file *)f->private_data)->private;
27530 */
27531 unsigned int size = EC_SPACE_SIZE;
27532 - u8 *data = (u8 *) buf;
27533 + u8 data;
27534 loff_t init_off = *off;
27535 int err = 0;
27536
27537 @@ -47,9 +48,11 @@ static ssize_t acpi_ec_read_io(struct file *f, char __user *buf,
27538 size = count;
27539
27540 while (size) {
27541 - err = ec_read(*off, &data[*off - init_off]);
27542 + err = ec_read(*off, &data);
27543 if (err)
27544 return err;
27545 + if (put_user(data, &buf[*off - init_off]))
27546 + return -EFAULT;
27547 *off += 1;
27548 size--;
27549 }
27550 @@ -65,7 +68,6 @@ static ssize_t acpi_ec_write_io(struct file *f, const char __user *buf,
27551
27552 unsigned int size = count;
27553 loff_t init_off = *off;
27554 - u8 *data = (u8 *) buf;
27555 int err = 0;
27556
27557 if (*off >= EC_SPACE_SIZE)
27558 @@ -76,7 +78,9 @@ static ssize_t acpi_ec_write_io(struct file *f, const char __user *buf,
27559 }
27560
27561 while (size) {
27562 - u8 byte_write = data[*off - init_off];
27563 + u8 byte_write;
27564 + if (get_user(byte_write, &buf[*off - init_off]))
27565 + return -EFAULT;
27566 err = ec_write(*off, byte_write);
27567 if (err)
27568 return err;
27569 diff --git a/drivers/acpi/proc.c b/drivers/acpi/proc.c
27570 index 251c7b62..000462d 100644
27571 --- a/drivers/acpi/proc.c
27572 +++ b/drivers/acpi/proc.c
27573 @@ -343,19 +343,13 @@ acpi_system_write_wakeup_device(struct file *file,
27574 size_t count, loff_t * ppos)
27575 {
27576 struct list_head *node, *next;
27577 - char strbuf[5];
27578 - char str[5] = "";
27579 - unsigned int len = count;
27580 + char strbuf[5] = {0};
27581
27582 - if (len > 4)
27583 - len = 4;
27584 - if (len < 0)
27585 + if (count > 4)
27586 + count = 4;
27587 + if (copy_from_user(strbuf, buffer, count))
27588 return -EFAULT;
27589 -
27590 - if (copy_from_user(strbuf, buffer, len))
27591 - return -EFAULT;
27592 - strbuf[len] = '\0';
27593 - sscanf(strbuf, "%s", str);
27594 + strbuf[count] = '\0';
27595
27596 mutex_lock(&acpi_device_lock);
27597 list_for_each_safe(node, next, &acpi_wakeup_device_list) {
27598 @@ -364,7 +358,7 @@ acpi_system_write_wakeup_device(struct file *file,
27599 if (!dev->wakeup.flags.valid)
27600 continue;
27601
27602 - if (!strncmp(dev->pnp.bus_id, str, 4)) {
27603 + if (!strncmp(dev->pnp.bus_id, strbuf, 4)) {
27604 if (device_can_wakeup(&dev->dev)) {
27605 bool enable = !device_may_wakeup(&dev->dev);
27606 device_set_wakeup_enable(&dev->dev, enable);
27607 diff --git a/drivers/acpi/processor_driver.c b/drivers/acpi/processor_driver.c
27608 index bbac51e..4c094f9 100644
27609 --- a/drivers/acpi/processor_driver.c
27610 +++ b/drivers/acpi/processor_driver.c
27611 @@ -556,7 +556,7 @@ static int __cpuinit acpi_processor_add(struct acpi_device *device)
27612 return 0;
27613 #endif
27614
27615 - BUG_ON((pr->id >= nr_cpu_ids) || (pr->id < 0));
27616 + BUG_ON(pr->id >= nr_cpu_ids);
27617
27618 /*
27619 * Buggy BIOS check
27620 diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
27621 index cece3a4..0845256 100644
27622 --- a/drivers/ata/libata-core.c
27623 +++ b/drivers/ata/libata-core.c
27624 @@ -4743,7 +4743,7 @@ void ata_qc_free(struct ata_queued_cmd *qc)
27625 struct ata_port *ap;
27626 unsigned int tag;
27627
27628 - WARN_ON_ONCE(qc == NULL); /* ata_qc_from_tag _might_ return NULL */
27629 + BUG_ON(qc == NULL); /* ata_qc_from_tag _might_ return NULL */
27630 ap = qc->ap;
27631
27632 qc->flags = 0;
27633 @@ -4759,7 +4759,7 @@ void __ata_qc_complete(struct ata_queued_cmd *qc)
27634 struct ata_port *ap;
27635 struct ata_link *link;
27636
27637 - WARN_ON_ONCE(qc == NULL); /* ata_qc_from_tag _might_ return NULL */
27638 + BUG_ON(qc == NULL); /* ata_qc_from_tag _might_ return NULL */
27639 WARN_ON_ONCE(!(qc->flags & ATA_QCFLAG_ACTIVE));
27640 ap = qc->ap;
27641 link = qc->dev->link;
27642 @@ -5823,6 +5823,7 @@ static void ata_finalize_port_ops(struct ata_port_operations *ops)
27643 return;
27644
27645 spin_lock(&lock);
27646 + pax_open_kernel();
27647
27648 for (cur = ops->inherits; cur; cur = cur->inherits) {
27649 void **inherit = (void **)cur;
27650 @@ -5836,8 +5837,9 @@ static void ata_finalize_port_ops(struct ata_port_operations *ops)
27651 if (IS_ERR(*pp))
27652 *pp = NULL;
27653
27654 - ops->inherits = NULL;
27655 + *(struct ata_port_operations **)&ops->inherits = NULL;
27656
27657 + pax_close_kernel();
27658 spin_unlock(&lock);
27659 }
27660
27661 diff --git a/drivers/ata/pata_arasan_cf.c b/drivers/ata/pata_arasan_cf.c
27662 index ac6a5be..c7176b1 100644
27663 --- a/drivers/ata/pata_arasan_cf.c
27664 +++ b/drivers/ata/pata_arasan_cf.c
27665 @@ -862,7 +862,9 @@ static int __devinit arasan_cf_probe(struct platform_device *pdev)
27666 /* Handle platform specific quirks */
27667 if (pdata->quirk) {
27668 if (pdata->quirk & CF_BROKEN_PIO) {
27669 - ap->ops->set_piomode = NULL;
27670 + pax_open_kernel();
27671 + *(void **)&ap->ops->set_piomode = NULL;
27672 + pax_close_kernel();
27673 ap->pio_mask = 0;
27674 }
27675 if (pdata->quirk & CF_BROKEN_MWDMA)
27676 diff --git a/drivers/atm/adummy.c b/drivers/atm/adummy.c
27677 index f9b983a..887b9d8 100644
27678 --- a/drivers/atm/adummy.c
27679 +++ b/drivers/atm/adummy.c
27680 @@ -114,7 +114,7 @@ adummy_send(struct atm_vcc *vcc, struct sk_buff *skb)
27681 vcc->pop(vcc, skb);
27682 else
27683 dev_kfree_skb_any(skb);
27684 - atomic_inc(&vcc->stats->tx);
27685 + atomic_inc_unchecked(&vcc->stats->tx);
27686
27687 return 0;
27688 }
27689 diff --git a/drivers/atm/ambassador.c b/drivers/atm/ambassador.c
27690 index 89b30f3..7964211 100644
27691 --- a/drivers/atm/ambassador.c
27692 +++ b/drivers/atm/ambassador.c
27693 @@ -454,7 +454,7 @@ static void tx_complete (amb_dev * dev, tx_out * tx) {
27694 PRINTD (DBG_FLOW|DBG_TX, "tx_complete %p %p", dev, tx);
27695
27696 // VC layer stats
27697 - atomic_inc(&ATM_SKB(skb)->vcc->stats->tx);
27698 + atomic_inc_unchecked(&ATM_SKB(skb)->vcc->stats->tx);
27699
27700 // free the descriptor
27701 kfree (tx_descr);
27702 @@ -495,7 +495,7 @@ static void rx_complete (amb_dev * dev, rx_out * rx) {
27703 dump_skb ("<<<", vc, skb);
27704
27705 // VC layer stats
27706 - atomic_inc(&atm_vcc->stats->rx);
27707 + atomic_inc_unchecked(&atm_vcc->stats->rx);
27708 __net_timestamp(skb);
27709 // end of our responsibility
27710 atm_vcc->push (atm_vcc, skb);
27711 @@ -510,7 +510,7 @@ static void rx_complete (amb_dev * dev, rx_out * rx) {
27712 } else {
27713 PRINTK (KERN_INFO, "dropped over-size frame");
27714 // should we count this?
27715 - atomic_inc(&atm_vcc->stats->rx_drop);
27716 + atomic_inc_unchecked(&atm_vcc->stats->rx_drop);
27717 }
27718
27719 } else {
27720 @@ -1338,7 +1338,7 @@ static int amb_send (struct atm_vcc * atm_vcc, struct sk_buff * skb) {
27721 }
27722
27723 if (check_area (skb->data, skb->len)) {
27724 - atomic_inc(&atm_vcc->stats->tx_err);
27725 + atomic_inc_unchecked(&atm_vcc->stats->tx_err);
27726 return -ENOMEM; // ?
27727 }
27728
27729 diff --git a/drivers/atm/atmtcp.c b/drivers/atm/atmtcp.c
27730 index b22d71c..d6e1049 100644
27731 --- a/drivers/atm/atmtcp.c
27732 +++ b/drivers/atm/atmtcp.c
27733 @@ -207,7 +207,7 @@ static int atmtcp_v_send(struct atm_vcc *vcc,struct sk_buff *skb)
27734 if (vcc->pop) vcc->pop(vcc,skb);
27735 else dev_kfree_skb(skb);
27736 if (dev_data) return 0;
27737 - atomic_inc(&vcc->stats->tx_err);
27738 + atomic_inc_unchecked(&vcc->stats->tx_err);
27739 return -ENOLINK;
27740 }
27741 size = skb->len+sizeof(struct atmtcp_hdr);
27742 @@ -215,7 +215,7 @@ static int atmtcp_v_send(struct atm_vcc *vcc,struct sk_buff *skb)
27743 if (!new_skb) {
27744 if (vcc->pop) vcc->pop(vcc,skb);
27745 else dev_kfree_skb(skb);
27746 - atomic_inc(&vcc->stats->tx_err);
27747 + atomic_inc_unchecked(&vcc->stats->tx_err);
27748 return -ENOBUFS;
27749 }
27750 hdr = (void *) skb_put(new_skb,sizeof(struct atmtcp_hdr));
27751 @@ -226,8 +226,8 @@ static int atmtcp_v_send(struct atm_vcc *vcc,struct sk_buff *skb)
27752 if (vcc->pop) vcc->pop(vcc,skb);
27753 else dev_kfree_skb(skb);
27754 out_vcc->push(out_vcc,new_skb);
27755 - atomic_inc(&vcc->stats->tx);
27756 - atomic_inc(&out_vcc->stats->rx);
27757 + atomic_inc_unchecked(&vcc->stats->tx);
27758 + atomic_inc_unchecked(&out_vcc->stats->rx);
27759 return 0;
27760 }
27761
27762 @@ -301,7 +301,7 @@ static int atmtcp_c_send(struct atm_vcc *vcc,struct sk_buff *skb)
27763 out_vcc = find_vcc(dev, ntohs(hdr->vpi), ntohs(hdr->vci));
27764 read_unlock(&vcc_sklist_lock);
27765 if (!out_vcc) {
27766 - atomic_inc(&vcc->stats->tx_err);
27767 + atomic_inc_unchecked(&vcc->stats->tx_err);
27768 goto done;
27769 }
27770 skb_pull(skb,sizeof(struct atmtcp_hdr));
27771 @@ -313,8 +313,8 @@ static int atmtcp_c_send(struct atm_vcc *vcc,struct sk_buff *skb)
27772 __net_timestamp(new_skb);
27773 skb_copy_from_linear_data(skb, skb_put(new_skb, skb->len), skb->len);
27774 out_vcc->push(out_vcc,new_skb);
27775 - atomic_inc(&vcc->stats->tx);
27776 - atomic_inc(&out_vcc->stats->rx);
27777 + atomic_inc_unchecked(&vcc->stats->tx);
27778 + atomic_inc_unchecked(&out_vcc->stats->rx);
27779 done:
27780 if (vcc->pop) vcc->pop(vcc,skb);
27781 else dev_kfree_skb(skb);
27782 diff --git a/drivers/atm/eni.c b/drivers/atm/eni.c
27783 index 2059ee4..faf51c7 100644
27784 --- a/drivers/atm/eni.c
27785 +++ b/drivers/atm/eni.c
27786 @@ -522,7 +522,7 @@ static int rx_aal0(struct atm_vcc *vcc)
27787 DPRINTK(DEV_LABEL "(itf %d): trashing empty cell\n",
27788 vcc->dev->number);
27789 length = 0;
27790 - atomic_inc(&vcc->stats->rx_err);
27791 + atomic_inc_unchecked(&vcc->stats->rx_err);
27792 }
27793 else {
27794 length = ATM_CELL_SIZE-1; /* no HEC */
27795 @@ -577,7 +577,7 @@ static int rx_aal5(struct atm_vcc *vcc)
27796 size);
27797 }
27798 eff = length = 0;
27799 - atomic_inc(&vcc->stats->rx_err);
27800 + atomic_inc_unchecked(&vcc->stats->rx_err);
27801 }
27802 else {
27803 size = (descr & MID_RED_COUNT)*(ATM_CELL_PAYLOAD >> 2);
27804 @@ -594,7 +594,7 @@ static int rx_aal5(struct atm_vcc *vcc)
27805 "(VCI=%d,length=%ld,size=%ld (descr 0x%lx))\n",
27806 vcc->dev->number,vcc->vci,length,size << 2,descr);
27807 length = eff = 0;
27808 - atomic_inc(&vcc->stats->rx_err);
27809 + atomic_inc_unchecked(&vcc->stats->rx_err);
27810 }
27811 }
27812 skb = eff ? atm_alloc_charge(vcc,eff << 2,GFP_ATOMIC) : NULL;
27813 @@ -767,7 +767,7 @@ rx_dequeued++;
27814 vcc->push(vcc,skb);
27815 pushed++;
27816 }
27817 - atomic_inc(&vcc->stats->rx);
27818 + atomic_inc_unchecked(&vcc->stats->rx);
27819 }
27820 wake_up(&eni_dev->rx_wait);
27821 }
27822 @@ -1227,7 +1227,7 @@ static void dequeue_tx(struct atm_dev *dev)
27823 PCI_DMA_TODEVICE);
27824 if (vcc->pop) vcc->pop(vcc,skb);
27825 else dev_kfree_skb_irq(skb);
27826 - atomic_inc(&vcc->stats->tx);
27827 + atomic_inc_unchecked(&vcc->stats->tx);
27828 wake_up(&eni_dev->tx_wait);
27829 dma_complete++;
27830 }
27831 @@ -1567,7 +1567,7 @@ tx_complete++;
27832 /*--------------------------------- entries ---------------------------------*/
27833
27834
27835 -static const char *media_name[] __devinitdata = {
27836 +static const char *media_name[] __devinitconst = {
27837 "MMF", "SMF", "MMF", "03?", /* 0- 3 */
27838 "UTP", "05?", "06?", "07?", /* 4- 7 */
27839 "TAXI","09?", "10?", "11?", /* 8-11 */
27840 diff --git a/drivers/atm/firestream.c b/drivers/atm/firestream.c
27841 index 86fed1b..6dc4721 100644
27842 --- a/drivers/atm/firestream.c
27843 +++ b/drivers/atm/firestream.c
27844 @@ -749,7 +749,7 @@ static void process_txdone_queue (struct fs_dev *dev, struct queue *q)
27845 }
27846 }
27847
27848 - atomic_inc(&ATM_SKB(skb)->vcc->stats->tx);
27849 + atomic_inc_unchecked(&ATM_SKB(skb)->vcc->stats->tx);
27850
27851 fs_dprintk (FS_DEBUG_TXMEM, "i");
27852 fs_dprintk (FS_DEBUG_ALLOC, "Free t-skb: %p\n", skb);
27853 @@ -816,7 +816,7 @@ static void process_incoming (struct fs_dev *dev, struct queue *q)
27854 #endif
27855 skb_put (skb, qe->p1 & 0xffff);
27856 ATM_SKB(skb)->vcc = atm_vcc;
27857 - atomic_inc(&atm_vcc->stats->rx);
27858 + atomic_inc_unchecked(&atm_vcc->stats->rx);
27859 __net_timestamp(skb);
27860 fs_dprintk (FS_DEBUG_ALLOC, "Free rec-skb: %p (pushed)\n", skb);
27861 atm_vcc->push (atm_vcc, skb);
27862 @@ -837,12 +837,12 @@ static void process_incoming (struct fs_dev *dev, struct queue *q)
27863 kfree (pe);
27864 }
27865 if (atm_vcc)
27866 - atomic_inc(&atm_vcc->stats->rx_drop);
27867 + atomic_inc_unchecked(&atm_vcc->stats->rx_drop);
27868 break;
27869 case 0x1f: /* Reassembly abort: no buffers. */
27870 /* Silently increment error counter. */
27871 if (atm_vcc)
27872 - atomic_inc(&atm_vcc->stats->rx_drop);
27873 + atomic_inc_unchecked(&atm_vcc->stats->rx_drop);
27874 break;
27875 default: /* Hmm. Haven't written the code to handle the others yet... -- REW */
27876 printk (KERN_WARNING "Don't know what to do with RX status %x: %s.\n",
27877 diff --git a/drivers/atm/fore200e.c b/drivers/atm/fore200e.c
27878 index 361f5ae..7fc552d 100644
27879 --- a/drivers/atm/fore200e.c
27880 +++ b/drivers/atm/fore200e.c
27881 @@ -933,9 +933,9 @@ fore200e_tx_irq(struct fore200e* fore200e)
27882 #endif
27883 /* check error condition */
27884 if (*entry->status & STATUS_ERROR)
27885 - atomic_inc(&vcc->stats->tx_err);
27886 + atomic_inc_unchecked(&vcc->stats->tx_err);
27887 else
27888 - atomic_inc(&vcc->stats->tx);
27889 + atomic_inc_unchecked(&vcc->stats->tx);
27890 }
27891 }
27892
27893 @@ -1084,7 +1084,7 @@ fore200e_push_rpd(struct fore200e* fore200e, struct atm_vcc* vcc, struct rpd* rp
27894 if (skb == NULL) {
27895 DPRINTK(2, "unable to alloc new skb, rx PDU length = %d\n", pdu_len);
27896
27897 - atomic_inc(&vcc->stats->rx_drop);
27898 + atomic_inc_unchecked(&vcc->stats->rx_drop);
27899 return -ENOMEM;
27900 }
27901
27902 @@ -1127,14 +1127,14 @@ fore200e_push_rpd(struct fore200e* fore200e, struct atm_vcc* vcc, struct rpd* rp
27903
27904 dev_kfree_skb_any(skb);
27905
27906 - atomic_inc(&vcc->stats->rx_drop);
27907 + atomic_inc_unchecked(&vcc->stats->rx_drop);
27908 return -ENOMEM;
27909 }
27910
27911 ASSERT(atomic_read(&sk_atm(vcc)->sk_wmem_alloc) >= 0);
27912
27913 vcc->push(vcc, skb);
27914 - atomic_inc(&vcc->stats->rx);
27915 + atomic_inc_unchecked(&vcc->stats->rx);
27916
27917 ASSERT(atomic_read(&sk_atm(vcc)->sk_wmem_alloc) >= 0);
27918
27919 @@ -1212,7 +1212,7 @@ fore200e_rx_irq(struct fore200e* fore200e)
27920 DPRINTK(2, "damaged PDU on %d.%d.%d\n",
27921 fore200e->atm_dev->number,
27922 entry->rpd->atm_header.vpi, entry->rpd->atm_header.vci);
27923 - atomic_inc(&vcc->stats->rx_err);
27924 + atomic_inc_unchecked(&vcc->stats->rx_err);
27925 }
27926 }
27927
27928 @@ -1657,7 +1657,7 @@ fore200e_send(struct atm_vcc *vcc, struct sk_buff *skb)
27929 goto retry_here;
27930 }
27931
27932 - atomic_inc(&vcc->stats->tx_err);
27933 + atomic_inc_unchecked(&vcc->stats->tx_err);
27934
27935 fore200e->tx_sat++;
27936 DPRINTK(2, "tx queue of device %s is saturated, PDU dropped - heartbeat is %08x\n",
27937 diff --git a/drivers/atm/he.c b/drivers/atm/he.c
27938 index b182c2f..1c6fa8a 100644
27939 --- a/drivers/atm/he.c
27940 +++ b/drivers/atm/he.c
27941 @@ -1709,7 +1709,7 @@ he_service_rbrq(struct he_dev *he_dev, int group)
27942
27943 if (RBRQ_HBUF_ERR(he_dev->rbrq_head)) {
27944 hprintk("HBUF_ERR! (cid 0x%x)\n", cid);
27945 - atomic_inc(&vcc->stats->rx_drop);
27946 + atomic_inc_unchecked(&vcc->stats->rx_drop);
27947 goto return_host_buffers;
27948 }
27949
27950 @@ -1736,7 +1736,7 @@ he_service_rbrq(struct he_dev *he_dev, int group)
27951 RBRQ_LEN_ERR(he_dev->rbrq_head)
27952 ? "LEN_ERR" : "",
27953 vcc->vpi, vcc->vci);
27954 - atomic_inc(&vcc->stats->rx_err);
27955 + atomic_inc_unchecked(&vcc->stats->rx_err);
27956 goto return_host_buffers;
27957 }
27958
27959 @@ -1788,7 +1788,7 @@ he_service_rbrq(struct he_dev *he_dev, int group)
27960 vcc->push(vcc, skb);
27961 spin_lock(&he_dev->global_lock);
27962
27963 - atomic_inc(&vcc->stats->rx);
27964 + atomic_inc_unchecked(&vcc->stats->rx);
27965
27966 return_host_buffers:
27967 ++pdus_assembled;
27968 @@ -2114,7 +2114,7 @@ __enqueue_tpd(struct he_dev *he_dev, struct he_tpd *tpd, unsigned cid)
27969 tpd->vcc->pop(tpd->vcc, tpd->skb);
27970 else
27971 dev_kfree_skb_any(tpd->skb);
27972 - atomic_inc(&tpd->vcc->stats->tx_err);
27973 + atomic_inc_unchecked(&tpd->vcc->stats->tx_err);
27974 }
27975 pci_pool_free(he_dev->tpd_pool, tpd, TPD_ADDR(tpd->status));
27976 return;
27977 @@ -2526,7 +2526,7 @@ he_send(struct atm_vcc *vcc, struct sk_buff *skb)
27978 vcc->pop(vcc, skb);
27979 else
27980 dev_kfree_skb_any(skb);
27981 - atomic_inc(&vcc->stats->tx_err);
27982 + atomic_inc_unchecked(&vcc->stats->tx_err);
27983 return -EINVAL;
27984 }
27985
27986 @@ -2537,7 +2537,7 @@ he_send(struct atm_vcc *vcc, struct sk_buff *skb)
27987 vcc->pop(vcc, skb);
27988 else
27989 dev_kfree_skb_any(skb);
27990 - atomic_inc(&vcc->stats->tx_err);
27991 + atomic_inc_unchecked(&vcc->stats->tx_err);
27992 return -EINVAL;
27993 }
27994 #endif
27995 @@ -2549,7 +2549,7 @@ he_send(struct atm_vcc *vcc, struct sk_buff *skb)
27996 vcc->pop(vcc, skb);
27997 else
27998 dev_kfree_skb_any(skb);
27999 - atomic_inc(&vcc->stats->tx_err);
28000 + atomic_inc_unchecked(&vcc->stats->tx_err);
28001 spin_unlock_irqrestore(&he_dev->global_lock, flags);
28002 return -ENOMEM;
28003 }
28004 @@ -2591,7 +2591,7 @@ he_send(struct atm_vcc *vcc, struct sk_buff *skb)
28005 vcc->pop(vcc, skb);
28006 else
28007 dev_kfree_skb_any(skb);
28008 - atomic_inc(&vcc->stats->tx_err);
28009 + atomic_inc_unchecked(&vcc->stats->tx_err);
28010 spin_unlock_irqrestore(&he_dev->global_lock, flags);
28011 return -ENOMEM;
28012 }
28013 @@ -2622,7 +2622,7 @@ he_send(struct atm_vcc *vcc, struct sk_buff *skb)
28014 __enqueue_tpd(he_dev, tpd, cid);
28015 spin_unlock_irqrestore(&he_dev->global_lock, flags);
28016
28017 - atomic_inc(&vcc->stats->tx);
28018 + atomic_inc_unchecked(&vcc->stats->tx);
28019
28020 return 0;
28021 }
28022 diff --git a/drivers/atm/horizon.c b/drivers/atm/horizon.c
28023 index 7d01c2a..4e3ac01 100644
28024 --- a/drivers/atm/horizon.c
28025 +++ b/drivers/atm/horizon.c
28026 @@ -1034,7 +1034,7 @@ static void rx_schedule (hrz_dev * dev, int irq) {
28027 {
28028 struct atm_vcc * vcc = ATM_SKB(skb)->vcc;
28029 // VC layer stats
28030 - atomic_inc(&vcc->stats->rx);
28031 + atomic_inc_unchecked(&vcc->stats->rx);
28032 __net_timestamp(skb);
28033 // end of our responsibility
28034 vcc->push (vcc, skb);
28035 @@ -1186,7 +1186,7 @@ static void tx_schedule (hrz_dev * const dev, int irq) {
28036 dev->tx_iovec = NULL;
28037
28038 // VC layer stats
28039 - atomic_inc(&ATM_SKB(skb)->vcc->stats->tx);
28040 + atomic_inc_unchecked(&ATM_SKB(skb)->vcc->stats->tx);
28041
28042 // free the skb
28043 hrz_kfree_skb (skb);
28044 diff --git a/drivers/atm/idt77252.c b/drivers/atm/idt77252.c
28045 index 8974bd2..b856f85 100644
28046 --- a/drivers/atm/idt77252.c
28047 +++ b/drivers/atm/idt77252.c
28048 @@ -812,7 +812,7 @@ drain_scq(struct idt77252_dev *card, struct vc_map *vc)
28049 else
28050 dev_kfree_skb(skb);
28051
28052 - atomic_inc(&vcc->stats->tx);
28053 + atomic_inc_unchecked(&vcc->stats->tx);
28054 }
28055
28056 atomic_dec(&scq->used);
28057 @@ -1075,13 +1075,13 @@ dequeue_rx(struct idt77252_dev *card, struct rsq_entry *rsqe)
28058 if ((sb = dev_alloc_skb(64)) == NULL) {
28059 printk("%s: Can't allocate buffers for aal0.\n",
28060 card->name);
28061 - atomic_add(i, &vcc->stats->rx_drop);
28062 + atomic_add_unchecked(i, &vcc->stats->rx_drop);
28063 break;
28064 }
28065 if (!atm_charge(vcc, sb->truesize)) {
28066 RXPRINTK("%s: atm_charge() dropped aal0 packets.\n",
28067 card->name);
28068 - atomic_add(i - 1, &vcc->stats->rx_drop);
28069 + atomic_add_unchecked(i - 1, &vcc->stats->rx_drop);
28070 dev_kfree_skb(sb);
28071 break;
28072 }
28073 @@ -1098,7 +1098,7 @@ dequeue_rx(struct idt77252_dev *card, struct rsq_entry *rsqe)
28074 ATM_SKB(sb)->vcc = vcc;
28075 __net_timestamp(sb);
28076 vcc->push(vcc, sb);
28077 - atomic_inc(&vcc->stats->rx);
28078 + atomic_inc_unchecked(&vcc->stats->rx);
28079
28080 cell += ATM_CELL_PAYLOAD;
28081 }
28082 @@ -1135,13 +1135,13 @@ dequeue_rx(struct idt77252_dev *card, struct rsq_entry *rsqe)
28083 "(CDC: %08x)\n",
28084 card->name, len, rpp->len, readl(SAR_REG_CDC));
28085 recycle_rx_pool_skb(card, rpp);
28086 - atomic_inc(&vcc->stats->rx_err);
28087 + atomic_inc_unchecked(&vcc->stats->rx_err);
28088 return;
28089 }
28090 if (stat & SAR_RSQE_CRC) {
28091 RXPRINTK("%s: AAL5 CRC error.\n", card->name);
28092 recycle_rx_pool_skb(card, rpp);
28093 - atomic_inc(&vcc->stats->rx_err);
28094 + atomic_inc_unchecked(&vcc->stats->rx_err);
28095 return;
28096 }
28097 if (skb_queue_len(&rpp->queue) > 1) {
28098 @@ -1152,7 +1152,7 @@ dequeue_rx(struct idt77252_dev *card, struct rsq_entry *rsqe)
28099 RXPRINTK("%s: Can't alloc RX skb.\n",
28100 card->name);
28101 recycle_rx_pool_skb(card, rpp);
28102 - atomic_inc(&vcc->stats->rx_err);
28103 + atomic_inc_unchecked(&vcc->stats->rx_err);
28104 return;
28105 }
28106 if (!atm_charge(vcc, skb->truesize)) {
28107 @@ -1171,7 +1171,7 @@ dequeue_rx(struct idt77252_dev *card, struct rsq_entry *rsqe)
28108 __net_timestamp(skb);
28109
28110 vcc->push(vcc, skb);
28111 - atomic_inc(&vcc->stats->rx);
28112 + atomic_inc_unchecked(&vcc->stats->rx);
28113
28114 return;
28115 }
28116 @@ -1193,7 +1193,7 @@ dequeue_rx(struct idt77252_dev *card, struct rsq_entry *rsqe)
28117 __net_timestamp(skb);
28118
28119 vcc->push(vcc, skb);
28120 - atomic_inc(&vcc->stats->rx);
28121 + atomic_inc_unchecked(&vcc->stats->rx);
28122
28123 if (skb->truesize > SAR_FB_SIZE_3)
28124 add_rx_skb(card, 3, SAR_FB_SIZE_3, 1);
28125 @@ -1304,14 +1304,14 @@ idt77252_rx_raw(struct idt77252_dev *card)
28126 if (vcc->qos.aal != ATM_AAL0) {
28127 RPRINTK("%s: raw cell for non AAL0 vc %u.%u\n",
28128 card->name, vpi, vci);
28129 - atomic_inc(&vcc->stats->rx_drop);
28130 + atomic_inc_unchecked(&vcc->stats->rx_drop);
28131 goto drop;
28132 }
28133
28134 if ((sb = dev_alloc_skb(64)) == NULL) {
28135 printk("%s: Can't allocate buffers for AAL0.\n",
28136 card->name);
28137 - atomic_inc(&vcc->stats->rx_err);
28138 + atomic_inc_unchecked(&vcc->stats->rx_err);
28139 goto drop;
28140 }
28141
28142 @@ -1330,7 +1330,7 @@ idt77252_rx_raw(struct idt77252_dev *card)
28143 ATM_SKB(sb)->vcc = vcc;
28144 __net_timestamp(sb);
28145 vcc->push(vcc, sb);
28146 - atomic_inc(&vcc->stats->rx);
28147 + atomic_inc_unchecked(&vcc->stats->rx);
28148
28149 drop:
28150 skb_pull(queue, 64);
28151 @@ -1955,13 +1955,13 @@ idt77252_send_skb(struct atm_vcc *vcc, struct sk_buff *skb, int oam)
28152
28153 if (vc == NULL) {
28154 printk("%s: NULL connection in send().\n", card->name);
28155 - atomic_inc(&vcc->stats->tx_err);
28156 + atomic_inc_unchecked(&vcc->stats->tx_err);
28157 dev_kfree_skb(skb);
28158 return -EINVAL;
28159 }
28160 if (!test_bit(VCF_TX, &vc->flags)) {
28161 printk("%s: Trying to transmit on a non-tx VC.\n", card->name);
28162 - atomic_inc(&vcc->stats->tx_err);
28163 + atomic_inc_unchecked(&vcc->stats->tx_err);
28164 dev_kfree_skb(skb);
28165 return -EINVAL;
28166 }
28167 @@ -1973,14 +1973,14 @@ idt77252_send_skb(struct atm_vcc *vcc, struct sk_buff *skb, int oam)
28168 break;
28169 default:
28170 printk("%s: Unsupported AAL: %d\n", card->name, vcc->qos.aal);
28171 - atomic_inc(&vcc->stats->tx_err);
28172 + atomic_inc_unchecked(&vcc->stats->tx_err);
28173 dev_kfree_skb(skb);
28174 return -EINVAL;
28175 }
28176
28177 if (skb_shinfo(skb)->nr_frags != 0) {
28178 printk("%s: No scatter-gather yet.\n", card->name);
28179 - atomic_inc(&vcc->stats->tx_err);
28180 + atomic_inc_unchecked(&vcc->stats->tx_err);
28181 dev_kfree_skb(skb);
28182 return -EINVAL;
28183 }
28184 @@ -1988,7 +1988,7 @@ idt77252_send_skb(struct atm_vcc *vcc, struct sk_buff *skb, int oam)
28185
28186 err = queue_skb(card, vc, skb, oam);
28187 if (err) {
28188 - atomic_inc(&vcc->stats->tx_err);
28189 + atomic_inc_unchecked(&vcc->stats->tx_err);
28190 dev_kfree_skb(skb);
28191 return err;
28192 }
28193 @@ -2011,7 +2011,7 @@ idt77252_send_oam(struct atm_vcc *vcc, void *cell, int flags)
28194 skb = dev_alloc_skb(64);
28195 if (!skb) {
28196 printk("%s: Out of memory in send_oam().\n", card->name);
28197 - atomic_inc(&vcc->stats->tx_err);
28198 + atomic_inc_unchecked(&vcc->stats->tx_err);
28199 return -ENOMEM;
28200 }
28201 atomic_add(skb->truesize, &sk_atm(vcc)->sk_wmem_alloc);
28202 diff --git a/drivers/atm/iphase.c b/drivers/atm/iphase.c
28203 index d438601..8b98495 100644
28204 --- a/drivers/atm/iphase.c
28205 +++ b/drivers/atm/iphase.c
28206 @@ -1145,7 +1145,7 @@ static int rx_pkt(struct atm_dev *dev)
28207 status = (u_short) (buf_desc_ptr->desc_mode);
28208 if (status & (RX_CER | RX_PTE | RX_OFL))
28209 {
28210 - atomic_inc(&vcc->stats->rx_err);
28211 + atomic_inc_unchecked(&vcc->stats->rx_err);
28212 IF_ERR(printk("IA: bad packet, dropping it");)
28213 if (status & RX_CER) {
28214 IF_ERR(printk(" cause: packet CRC error\n");)
28215 @@ -1168,7 +1168,7 @@ static int rx_pkt(struct atm_dev *dev)
28216 len = dma_addr - buf_addr;
28217 if (len > iadev->rx_buf_sz) {
28218 printk("Over %d bytes sdu received, dropped!!!\n", iadev->rx_buf_sz);
28219 - atomic_inc(&vcc->stats->rx_err);
28220 + atomic_inc_unchecked(&vcc->stats->rx_err);
28221 goto out_free_desc;
28222 }
28223
28224 @@ -1318,7 +1318,7 @@ static void rx_dle_intr(struct atm_dev *dev)
28225 ia_vcc = INPH_IA_VCC(vcc);
28226 if (ia_vcc == NULL)
28227 {
28228 - atomic_inc(&vcc->stats->rx_err);
28229 + atomic_inc_unchecked(&vcc->stats->rx_err);
28230 atm_return(vcc, skb->truesize);
28231 dev_kfree_skb_any(skb);
28232 goto INCR_DLE;
28233 @@ -1330,7 +1330,7 @@ static void rx_dle_intr(struct atm_dev *dev)
28234 if ((length > iadev->rx_buf_sz) || (length >
28235 (skb->len - sizeof(struct cpcs_trailer))))
28236 {
28237 - atomic_inc(&vcc->stats->rx_err);
28238 + atomic_inc_unchecked(&vcc->stats->rx_err);
28239 IF_ERR(printk("rx_dle_intr: Bad AAL5 trailer %d (skb len %d)",
28240 length, skb->len);)
28241 atm_return(vcc, skb->truesize);
28242 @@ -1346,7 +1346,7 @@ static void rx_dle_intr(struct atm_dev *dev)
28243
28244 IF_RX(printk("rx_dle_intr: skb push");)
28245 vcc->push(vcc,skb);
28246 - atomic_inc(&vcc->stats->rx);
28247 + atomic_inc_unchecked(&vcc->stats->rx);
28248 iadev->rx_pkt_cnt++;
28249 }
28250 INCR_DLE:
28251 @@ -2826,15 +2826,15 @@ static int ia_ioctl(struct atm_dev *dev, unsigned int cmd, void __user *arg)
28252 {
28253 struct k_sonet_stats *stats;
28254 stats = &PRIV(_ia_dev[board])->sonet_stats;
28255 - printk("section_bip: %d\n", atomic_read(&stats->section_bip));
28256 - printk("line_bip : %d\n", atomic_read(&stats->line_bip));
28257 - printk("path_bip : %d\n", atomic_read(&stats->path_bip));
28258 - printk("line_febe : %d\n", atomic_read(&stats->line_febe));
28259 - printk("path_febe : %d\n", atomic_read(&stats->path_febe));
28260 - printk("corr_hcs : %d\n", atomic_read(&stats->corr_hcs));
28261 - printk("uncorr_hcs : %d\n", atomic_read(&stats->uncorr_hcs));
28262 - printk("tx_cells : %d\n", atomic_read(&stats->tx_cells));
28263 - printk("rx_cells : %d\n", atomic_read(&stats->rx_cells));
28264 + printk("section_bip: %d\n", atomic_read_unchecked(&stats->section_bip));
28265 + printk("line_bip : %d\n", atomic_read_unchecked(&stats->line_bip));
28266 + printk("path_bip : %d\n", atomic_read_unchecked(&stats->path_bip));
28267 + printk("line_febe : %d\n", atomic_read_unchecked(&stats->line_febe));
28268 + printk("path_febe : %d\n", atomic_read_unchecked(&stats->path_febe));
28269 + printk("corr_hcs : %d\n", atomic_read_unchecked(&stats->corr_hcs));
28270 + printk("uncorr_hcs : %d\n", atomic_read_unchecked(&stats->uncorr_hcs));
28271 + printk("tx_cells : %d\n", atomic_read_unchecked(&stats->tx_cells));
28272 + printk("rx_cells : %d\n", atomic_read_unchecked(&stats->rx_cells));
28273 }
28274 ia_cmds.status = 0;
28275 break;
28276 @@ -2939,7 +2939,7 @@ static int ia_pkt_tx (struct atm_vcc *vcc, struct sk_buff *skb) {
28277 if ((desc == 0) || (desc > iadev->num_tx_desc))
28278 {
28279 IF_ERR(printk(DEV_LABEL "invalid desc for send: %d\n", desc);)
28280 - atomic_inc(&vcc->stats->tx);
28281 + atomic_inc_unchecked(&vcc->stats->tx);
28282 if (vcc->pop)
28283 vcc->pop(vcc, skb);
28284 else
28285 @@ -3044,14 +3044,14 @@ static int ia_pkt_tx (struct atm_vcc *vcc, struct sk_buff *skb) {
28286 ATM_DESC(skb) = vcc->vci;
28287 skb_queue_tail(&iadev->tx_dma_q, skb);
28288
28289 - atomic_inc(&vcc->stats->tx);
28290 + atomic_inc_unchecked(&vcc->stats->tx);
28291 iadev->tx_pkt_cnt++;
28292 /* Increment transaction counter */
28293 writel(2, iadev->dma+IPHASE5575_TX_COUNTER);
28294
28295 #if 0
28296 /* add flow control logic */
28297 - if (atomic_read(&vcc->stats->tx) % 20 == 0) {
28298 + if (atomic_read_unchecked(&vcc->stats->tx) % 20 == 0) {
28299 if (iavcc->vc_desc_cnt > 10) {
28300 vcc->tx_quota = vcc->tx_quota * 3 / 4;
28301 printk("Tx1: vcc->tx_quota = %d \n", (u32)vcc->tx_quota );
28302 diff --git a/drivers/atm/lanai.c b/drivers/atm/lanai.c
28303 index 68c7588..7036683 100644
28304 --- a/drivers/atm/lanai.c
28305 +++ b/drivers/atm/lanai.c
28306 @@ -1303,7 +1303,7 @@ static void lanai_send_one_aal5(struct lanai_dev *lanai,
28307 vcc_tx_add_aal5_trailer(lvcc, skb->len, 0, 0);
28308 lanai_endtx(lanai, lvcc);
28309 lanai_free_skb(lvcc->tx.atmvcc, skb);
28310 - atomic_inc(&lvcc->tx.atmvcc->stats->tx);
28311 + atomic_inc_unchecked(&lvcc->tx.atmvcc->stats->tx);
28312 }
28313
28314 /* Try to fill the buffer - don't call unless there is backlog */
28315 @@ -1426,7 +1426,7 @@ static void vcc_rx_aal5(struct lanai_vcc *lvcc, int endptr)
28316 ATM_SKB(skb)->vcc = lvcc->rx.atmvcc;
28317 __net_timestamp(skb);
28318 lvcc->rx.atmvcc->push(lvcc->rx.atmvcc, skb);
28319 - atomic_inc(&lvcc->rx.atmvcc->stats->rx);
28320 + atomic_inc_unchecked(&lvcc->rx.atmvcc->stats->rx);
28321 out:
28322 lvcc->rx.buf.ptr = end;
28323 cardvcc_write(lvcc, endptr, vcc_rxreadptr);
28324 @@ -1667,7 +1667,7 @@ static int handle_service(struct lanai_dev *lanai, u32 s)
28325 DPRINTK("(itf %d) got RX service entry 0x%X for non-AAL5 "
28326 "vcc %d\n", lanai->number, (unsigned int) s, vci);
28327 lanai->stats.service_rxnotaal5++;
28328 - atomic_inc(&lvcc->rx.atmvcc->stats->rx_err);
28329 + atomic_inc_unchecked(&lvcc->rx.atmvcc->stats->rx_err);
28330 return 0;
28331 }
28332 if (likely(!(s & (SERVICE_TRASH | SERVICE_STREAM | SERVICE_CRCERR)))) {
28333 @@ -1679,7 +1679,7 @@ static int handle_service(struct lanai_dev *lanai, u32 s)
28334 int bytes;
28335 read_unlock(&vcc_sklist_lock);
28336 DPRINTK("got trashed rx pdu on vci %d\n", vci);
28337 - atomic_inc(&lvcc->rx.atmvcc->stats->rx_err);
28338 + atomic_inc_unchecked(&lvcc->rx.atmvcc->stats->rx_err);
28339 lvcc->stats.x.aal5.service_trash++;
28340 bytes = (SERVICE_GET_END(s) * 16) -
28341 (((unsigned long) lvcc->rx.buf.ptr) -
28342 @@ -1691,7 +1691,7 @@ static int handle_service(struct lanai_dev *lanai, u32 s)
28343 }
28344 if (s & SERVICE_STREAM) {
28345 read_unlock(&vcc_sklist_lock);
28346 - atomic_inc(&lvcc->rx.atmvcc->stats->rx_err);
28347 + atomic_inc_unchecked(&lvcc->rx.atmvcc->stats->rx_err);
28348 lvcc->stats.x.aal5.service_stream++;
28349 printk(KERN_ERR DEV_LABEL "(itf %d): Got AAL5 stream "
28350 "PDU on VCI %d!\n", lanai->number, vci);
28351 @@ -1699,7 +1699,7 @@ static int handle_service(struct lanai_dev *lanai, u32 s)
28352 return 0;
28353 }
28354 DPRINTK("got rx crc error on vci %d\n", vci);
28355 - atomic_inc(&lvcc->rx.atmvcc->stats->rx_err);
28356 + atomic_inc_unchecked(&lvcc->rx.atmvcc->stats->rx_err);
28357 lvcc->stats.x.aal5.service_rxcrc++;
28358 lvcc->rx.buf.ptr = &lvcc->rx.buf.start[SERVICE_GET_END(s) * 4];
28359 cardvcc_write(lvcc, SERVICE_GET_END(s), vcc_rxreadptr);
28360 diff --git a/drivers/atm/nicstar.c b/drivers/atm/nicstar.c
28361 index 1c70c45..300718d 100644
28362 --- a/drivers/atm/nicstar.c
28363 +++ b/drivers/atm/nicstar.c
28364 @@ -1654,7 +1654,7 @@ static int ns_send(struct atm_vcc *vcc, struct sk_buff *skb)
28365 if ((vc = (vc_map *) vcc->dev_data) == NULL) {
28366 printk("nicstar%d: vcc->dev_data == NULL on ns_send().\n",
28367 card->index);
28368 - atomic_inc(&vcc->stats->tx_err);
28369 + atomic_inc_unchecked(&vcc->stats->tx_err);
28370 dev_kfree_skb_any(skb);
28371 return -EINVAL;
28372 }
28373 @@ -1662,7 +1662,7 @@ static int ns_send(struct atm_vcc *vcc, struct sk_buff *skb)
28374 if (!vc->tx) {
28375 printk("nicstar%d: Trying to transmit on a non-tx VC.\n",
28376 card->index);
28377 - atomic_inc(&vcc->stats->tx_err);
28378 + atomic_inc_unchecked(&vcc->stats->tx_err);
28379 dev_kfree_skb_any(skb);
28380 return -EINVAL;
28381 }
28382 @@ -1670,14 +1670,14 @@ static int ns_send(struct atm_vcc *vcc, struct sk_buff *skb)
28383 if (vcc->qos.aal != ATM_AAL5 && vcc->qos.aal != ATM_AAL0) {
28384 printk("nicstar%d: Only AAL0 and AAL5 are supported.\n",
28385 card->index);
28386 - atomic_inc(&vcc->stats->tx_err);
28387 + atomic_inc_unchecked(&vcc->stats->tx_err);
28388 dev_kfree_skb_any(skb);
28389 return -EINVAL;
28390 }
28391
28392 if (skb_shinfo(skb)->nr_frags != 0) {
28393 printk("nicstar%d: No scatter-gather yet.\n", card->index);
28394 - atomic_inc(&vcc->stats->tx_err);
28395 + atomic_inc_unchecked(&vcc->stats->tx_err);
28396 dev_kfree_skb_any(skb);
28397 return -EINVAL;
28398 }
28399 @@ -1725,11 +1725,11 @@ static int ns_send(struct atm_vcc *vcc, struct sk_buff *skb)
28400 }
28401
28402 if (push_scqe(card, vc, scq, &scqe, skb) != 0) {
28403 - atomic_inc(&vcc->stats->tx_err);
28404 + atomic_inc_unchecked(&vcc->stats->tx_err);
28405 dev_kfree_skb_any(skb);
28406 return -EIO;
28407 }
28408 - atomic_inc(&vcc->stats->tx);
28409 + atomic_inc_unchecked(&vcc->stats->tx);
28410
28411 return 0;
28412 }
28413 @@ -2046,14 +2046,14 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
28414 printk
28415 ("nicstar%d: Can't allocate buffers for aal0.\n",
28416 card->index);
28417 - atomic_add(i, &vcc->stats->rx_drop);
28418 + atomic_add_unchecked(i, &vcc->stats->rx_drop);
28419 break;
28420 }
28421 if (!atm_charge(vcc, sb->truesize)) {
28422 RXPRINTK
28423 ("nicstar%d: atm_charge() dropped aal0 packets.\n",
28424 card->index);
28425 - atomic_add(i - 1, &vcc->stats->rx_drop); /* already increased by 1 */
28426 + atomic_add_unchecked(i - 1, &vcc->stats->rx_drop); /* already increased by 1 */
28427 dev_kfree_skb_any(sb);
28428 break;
28429 }
28430 @@ -2068,7 +2068,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
28431 ATM_SKB(sb)->vcc = vcc;
28432 __net_timestamp(sb);
28433 vcc->push(vcc, sb);
28434 - atomic_inc(&vcc->stats->rx);
28435 + atomic_inc_unchecked(&vcc->stats->rx);
28436 cell += ATM_CELL_PAYLOAD;
28437 }
28438
28439 @@ -2085,7 +2085,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
28440 if (iovb == NULL) {
28441 printk("nicstar%d: Out of iovec buffers.\n",
28442 card->index);
28443 - atomic_inc(&vcc->stats->rx_drop);
28444 + atomic_inc_unchecked(&vcc->stats->rx_drop);
28445 recycle_rx_buf(card, skb);
28446 return;
28447 }
28448 @@ -2109,7 +2109,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
28449 small or large buffer itself. */
28450 } else if (NS_PRV_IOVCNT(iovb) >= NS_MAX_IOVECS) {
28451 printk("nicstar%d: received too big AAL5 SDU.\n", card->index);
28452 - atomic_inc(&vcc->stats->rx_err);
28453 + atomic_inc_unchecked(&vcc->stats->rx_err);
28454 recycle_iovec_rx_bufs(card, (struct iovec *)iovb->data,
28455 NS_MAX_IOVECS);
28456 NS_PRV_IOVCNT(iovb) = 0;
28457 @@ -2129,7 +2129,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
28458 ("nicstar%d: Expected a small buffer, and this is not one.\n",
28459 card->index);
28460 which_list(card, skb);
28461 - atomic_inc(&vcc->stats->rx_err);
28462 + atomic_inc_unchecked(&vcc->stats->rx_err);
28463 recycle_rx_buf(card, skb);
28464 vc->rx_iov = NULL;
28465 recycle_iov_buf(card, iovb);
28466 @@ -2142,7 +2142,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
28467 ("nicstar%d: Expected a large buffer, and this is not one.\n",
28468 card->index);
28469 which_list(card, skb);
28470 - atomic_inc(&vcc->stats->rx_err);
28471 + atomic_inc_unchecked(&vcc->stats->rx_err);
28472 recycle_iovec_rx_bufs(card, (struct iovec *)iovb->data,
28473 NS_PRV_IOVCNT(iovb));
28474 vc->rx_iov = NULL;
28475 @@ -2165,7 +2165,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
28476 printk(" - PDU size mismatch.\n");
28477 else
28478 printk(".\n");
28479 - atomic_inc(&vcc->stats->rx_err);
28480 + atomic_inc_unchecked(&vcc->stats->rx_err);
28481 recycle_iovec_rx_bufs(card, (struct iovec *)iovb->data,
28482 NS_PRV_IOVCNT(iovb));
28483 vc->rx_iov = NULL;
28484 @@ -2179,7 +2179,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
28485 /* skb points to a small buffer */
28486 if (!atm_charge(vcc, skb->truesize)) {
28487 push_rxbufs(card, skb);
28488 - atomic_inc(&vcc->stats->rx_drop);
28489 + atomic_inc_unchecked(&vcc->stats->rx_drop);
28490 } else {
28491 skb_put(skb, len);
28492 dequeue_sm_buf(card, skb);
28493 @@ -2189,7 +2189,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
28494 ATM_SKB(skb)->vcc = vcc;
28495 __net_timestamp(skb);
28496 vcc->push(vcc, skb);
28497 - atomic_inc(&vcc->stats->rx);
28498 + atomic_inc_unchecked(&vcc->stats->rx);
28499 }
28500 } else if (NS_PRV_IOVCNT(iovb) == 2) { /* One small plus one large buffer */
28501 struct sk_buff *sb;
28502 @@ -2200,7 +2200,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
28503 if (len <= NS_SMBUFSIZE) {
28504 if (!atm_charge(vcc, sb->truesize)) {
28505 push_rxbufs(card, sb);
28506 - atomic_inc(&vcc->stats->rx_drop);
28507 + atomic_inc_unchecked(&vcc->stats->rx_drop);
28508 } else {
28509 skb_put(sb, len);
28510 dequeue_sm_buf(card, sb);
28511 @@ -2210,7 +2210,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
28512 ATM_SKB(sb)->vcc = vcc;
28513 __net_timestamp(sb);
28514 vcc->push(vcc, sb);
28515 - atomic_inc(&vcc->stats->rx);
28516 + atomic_inc_unchecked(&vcc->stats->rx);
28517 }
28518
28519 push_rxbufs(card, skb);
28520 @@ -2219,7 +2219,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
28521
28522 if (!atm_charge(vcc, skb->truesize)) {
28523 push_rxbufs(card, skb);
28524 - atomic_inc(&vcc->stats->rx_drop);
28525 + atomic_inc_unchecked(&vcc->stats->rx_drop);
28526 } else {
28527 dequeue_lg_buf(card, skb);
28528 #ifdef NS_USE_DESTRUCTORS
28529 @@ -2232,7 +2232,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
28530 ATM_SKB(skb)->vcc = vcc;
28531 __net_timestamp(skb);
28532 vcc->push(vcc, skb);
28533 - atomic_inc(&vcc->stats->rx);
28534 + atomic_inc_unchecked(&vcc->stats->rx);
28535 }
28536
28537 push_rxbufs(card, sb);
28538 @@ -2253,7 +2253,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
28539 printk
28540 ("nicstar%d: Out of huge buffers.\n",
28541 card->index);
28542 - atomic_inc(&vcc->stats->rx_drop);
28543 + atomic_inc_unchecked(&vcc->stats->rx_drop);
28544 recycle_iovec_rx_bufs(card,
28545 (struct iovec *)
28546 iovb->data,
28547 @@ -2304,7 +2304,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
28548 card->hbpool.count++;
28549 } else
28550 dev_kfree_skb_any(hb);
28551 - atomic_inc(&vcc->stats->rx_drop);
28552 + atomic_inc_unchecked(&vcc->stats->rx_drop);
28553 } else {
28554 /* Copy the small buffer to the huge buffer */
28555 sb = (struct sk_buff *)iov->iov_base;
28556 @@ -2341,7 +2341,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
28557 #endif /* NS_USE_DESTRUCTORS */
28558 __net_timestamp(hb);
28559 vcc->push(vcc, hb);
28560 - atomic_inc(&vcc->stats->rx);
28561 + atomic_inc_unchecked(&vcc->stats->rx);
28562 }
28563 }
28564
28565 diff --git a/drivers/atm/solos-pci.c b/drivers/atm/solos-pci.c
28566 index 9851093..adb2b1e 100644
28567 --- a/drivers/atm/solos-pci.c
28568 +++ b/drivers/atm/solos-pci.c
28569 @@ -714,7 +714,7 @@ void solos_bh(unsigned long card_arg)
28570 }
28571 atm_charge(vcc, skb->truesize);
28572 vcc->push(vcc, skb);
28573 - atomic_inc(&vcc->stats->rx);
28574 + atomic_inc_unchecked(&vcc->stats->rx);
28575 break;
28576
28577 case PKT_STATUS:
28578 @@ -1009,7 +1009,7 @@ static uint32_t fpga_tx(struct solos_card *card)
28579 vcc = SKB_CB(oldskb)->vcc;
28580
28581 if (vcc) {
28582 - atomic_inc(&vcc->stats->tx);
28583 + atomic_inc_unchecked(&vcc->stats->tx);
28584 solos_pop(vcc, oldskb);
28585 } else
28586 dev_kfree_skb_irq(oldskb);
28587 diff --git a/drivers/atm/suni.c b/drivers/atm/suni.c
28588 index 0215934..ce9f5b1 100644
28589 --- a/drivers/atm/suni.c
28590 +++ b/drivers/atm/suni.c
28591 @@ -49,8 +49,8 @@ static DEFINE_SPINLOCK(sunis_lock);
28592
28593
28594 #define ADD_LIMITED(s,v) \
28595 - atomic_add((v),&stats->s); \
28596 - if (atomic_read(&stats->s) < 0) atomic_set(&stats->s,INT_MAX);
28597 + atomic_add_unchecked((v),&stats->s); \
28598 + if (atomic_read_unchecked(&stats->s) < 0) atomic_set_unchecked(&stats->s,INT_MAX);
28599
28600
28601 static void suni_hz(unsigned long from_timer)
28602 diff --git a/drivers/atm/uPD98402.c b/drivers/atm/uPD98402.c
28603 index 5120a96..e2572bd 100644
28604 --- a/drivers/atm/uPD98402.c
28605 +++ b/drivers/atm/uPD98402.c
28606 @@ -42,7 +42,7 @@ static int fetch_stats(struct atm_dev *dev,struct sonet_stats __user *arg,int ze
28607 struct sonet_stats tmp;
28608 int error = 0;
28609
28610 - atomic_add(GET(HECCT),&PRIV(dev)->sonet_stats.uncorr_hcs);
28611 + atomic_add_unchecked(GET(HECCT),&PRIV(dev)->sonet_stats.uncorr_hcs);
28612 sonet_copy_stats(&PRIV(dev)->sonet_stats,&tmp);
28613 if (arg) error = copy_to_user(arg,&tmp,sizeof(tmp));
28614 if (zero && !error) {
28615 @@ -161,9 +161,9 @@ static int uPD98402_ioctl(struct atm_dev *dev,unsigned int cmd,void __user *arg)
28616
28617
28618 #define ADD_LIMITED(s,v) \
28619 - { atomic_add(GET(v),&PRIV(dev)->sonet_stats.s); \
28620 - if (atomic_read(&PRIV(dev)->sonet_stats.s) < 0) \
28621 - atomic_set(&PRIV(dev)->sonet_stats.s,INT_MAX); }
28622 + { atomic_add_unchecked(GET(v),&PRIV(dev)->sonet_stats.s); \
28623 + if (atomic_read_unchecked(&PRIV(dev)->sonet_stats.s) < 0) \
28624 + atomic_set_unchecked(&PRIV(dev)->sonet_stats.s,INT_MAX); }
28625
28626
28627 static void stat_event(struct atm_dev *dev)
28628 @@ -194,7 +194,7 @@ static void uPD98402_int(struct atm_dev *dev)
28629 if (reason & uPD98402_INT_PFM) stat_event(dev);
28630 if (reason & uPD98402_INT_PCO) {
28631 (void) GET(PCOCR); /* clear interrupt cause */
28632 - atomic_add(GET(HECCT),
28633 + atomic_add_unchecked(GET(HECCT),
28634 &PRIV(dev)->sonet_stats.uncorr_hcs);
28635 }
28636 if ((reason & uPD98402_INT_RFO) &&
28637 @@ -222,9 +222,9 @@ static int uPD98402_start(struct atm_dev *dev)
28638 PUT(~(uPD98402_INT_PFM | uPD98402_INT_ALM | uPD98402_INT_RFO |
28639 uPD98402_INT_LOS),PIMR); /* enable them */
28640 (void) fetch_stats(dev,NULL,1); /* clear kernel counters */
28641 - atomic_set(&PRIV(dev)->sonet_stats.corr_hcs,-1);
28642 - atomic_set(&PRIV(dev)->sonet_stats.tx_cells,-1);
28643 - atomic_set(&PRIV(dev)->sonet_stats.rx_cells,-1);
28644 + atomic_set_unchecked(&PRIV(dev)->sonet_stats.corr_hcs,-1);
28645 + atomic_set_unchecked(&PRIV(dev)->sonet_stats.tx_cells,-1);
28646 + atomic_set_unchecked(&PRIV(dev)->sonet_stats.rx_cells,-1);
28647 return 0;
28648 }
28649
28650 diff --git a/drivers/atm/zatm.c b/drivers/atm/zatm.c
28651 index abe4e20..83c4727 100644
28652 --- a/drivers/atm/zatm.c
28653 +++ b/drivers/atm/zatm.c
28654 @@ -459,7 +459,7 @@ printk("dummy: 0x%08lx, 0x%08lx\n",dummy[0],dummy[1]);
28655 }
28656 if (!size) {
28657 dev_kfree_skb_irq(skb);
28658 - if (vcc) atomic_inc(&vcc->stats->rx_err);
28659 + if (vcc) atomic_inc_unchecked(&vcc->stats->rx_err);
28660 continue;
28661 }
28662 if (!atm_charge(vcc,skb->truesize)) {
28663 @@ -469,7 +469,7 @@ printk("dummy: 0x%08lx, 0x%08lx\n",dummy[0],dummy[1]);
28664 skb->len = size;
28665 ATM_SKB(skb)->vcc = vcc;
28666 vcc->push(vcc,skb);
28667 - atomic_inc(&vcc->stats->rx);
28668 + atomic_inc_unchecked(&vcc->stats->rx);
28669 }
28670 zout(pos & 0xffff,MTA(mbx));
28671 #if 0 /* probably a stupid idea */
28672 @@ -733,7 +733,7 @@ if (*ZATM_PRV_DSC(skb) != (uPD98401_TXPD_V | uPD98401_TXPD_DP |
28673 skb_queue_head(&zatm_vcc->backlog,skb);
28674 break;
28675 }
28676 - atomic_inc(&vcc->stats->tx);
28677 + atomic_inc_unchecked(&vcc->stats->tx);
28678 wake_up(&zatm_vcc->tx_wait);
28679 }
28680
28681 diff --git a/drivers/base/devtmpfs.c b/drivers/base/devtmpfs.c
28682 index 765c3a2..771ace6 100644
28683 --- a/drivers/base/devtmpfs.c
28684 +++ b/drivers/base/devtmpfs.c
28685 @@ -368,7 +368,7 @@ int devtmpfs_mount(const char *mntdir)
28686 if (!thread)
28687 return 0;
28688
28689 - err = sys_mount("devtmpfs", (char *)mntdir, "devtmpfs", MS_SILENT, NULL);
28690 + err = sys_mount((char __force_user *)"devtmpfs", (char __force_user *)mntdir, (char __force_user *)"devtmpfs", MS_SILENT, NULL);
28691 if (err)
28692 printk(KERN_INFO "devtmpfs: error mounting %i\n", err);
28693 else
28694 diff --git a/drivers/base/power/wakeup.c b/drivers/base/power/wakeup.c
28695 index cbb463b..babe2cf 100644
28696 --- a/drivers/base/power/wakeup.c
28697 +++ b/drivers/base/power/wakeup.c
28698 @@ -29,14 +29,14 @@ bool events_check_enabled __read_mostly;
28699 * They need to be modified together atomically, so it's better to use one
28700 * atomic variable to hold them both.
28701 */
28702 -static atomic_t combined_event_count = ATOMIC_INIT(0);
28703 +static atomic_unchecked_t combined_event_count = ATOMIC_INIT(0);
28704
28705 #define IN_PROGRESS_BITS (sizeof(int) * 4)
28706 #define MAX_IN_PROGRESS ((1 << IN_PROGRESS_BITS) - 1)
28707
28708 static void split_counters(unsigned int *cnt, unsigned int *inpr)
28709 {
28710 - unsigned int comb = atomic_read(&combined_event_count);
28711 + unsigned int comb = atomic_read_unchecked(&combined_event_count);
28712
28713 *cnt = (comb >> IN_PROGRESS_BITS);
28714 *inpr = comb & MAX_IN_PROGRESS;
28715 @@ -385,7 +385,7 @@ static void wakeup_source_activate(struct wakeup_source *ws)
28716 ws->start_prevent_time = ws->last_time;
28717
28718 /* Increment the counter of events in progress. */
28719 - cec = atomic_inc_return(&combined_event_count);
28720 + cec = atomic_inc_return_unchecked(&combined_event_count);
28721
28722 trace_wakeup_source_activate(ws->name, cec);
28723 }
28724 @@ -511,7 +511,7 @@ static void wakeup_source_deactivate(struct wakeup_source *ws)
28725 * Increment the counter of registered wakeup events and decrement the
28726 * couter of wakeup events in progress simultaneously.
28727 */
28728 - cec = atomic_add_return(MAX_IN_PROGRESS, &combined_event_count);
28729 + cec = atomic_add_return_unchecked(MAX_IN_PROGRESS, &combined_event_count);
28730 trace_wakeup_source_deactivate(ws->name, cec);
28731
28732 split_counters(&cnt, &inpr);
28733 diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
28734 index b0f553b..77b928b 100644
28735 --- a/drivers/block/cciss.c
28736 +++ b/drivers/block/cciss.c
28737 @@ -1198,6 +1198,8 @@ static int cciss_ioctl32_passthru(struct block_device *bdev, fmode_t mode,
28738 int err;
28739 u32 cp;
28740
28741 + memset(&arg64, 0, sizeof(arg64));
28742 +
28743 err = 0;
28744 err |=
28745 copy_from_user(&arg64.LUN_info, &arg32->LUN_info,
28746 @@ -3007,7 +3009,7 @@ static void start_io(ctlr_info_t *h)
28747 while (!list_empty(&h->reqQ)) {
28748 c = list_entry(h->reqQ.next, CommandList_struct, list);
28749 /* can't do anything if fifo is full */
28750 - if ((h->access.fifo_full(h))) {
28751 + if ((h->access->fifo_full(h))) {
28752 dev_warn(&h->pdev->dev, "fifo full\n");
28753 break;
28754 }
28755 @@ -3017,7 +3019,7 @@ static void start_io(ctlr_info_t *h)
28756 h->Qdepth--;
28757
28758 /* Tell the controller execute command */
28759 - h->access.submit_command(h, c);
28760 + h->access->submit_command(h, c);
28761
28762 /* Put job onto the completed Q */
28763 addQ(&h->cmpQ, c);
28764 @@ -3443,17 +3445,17 @@ startio:
28765
28766 static inline unsigned long get_next_completion(ctlr_info_t *h)
28767 {
28768 - return h->access.command_completed(h);
28769 + return h->access->command_completed(h);
28770 }
28771
28772 static inline int interrupt_pending(ctlr_info_t *h)
28773 {
28774 - return h->access.intr_pending(h);
28775 + return h->access->intr_pending(h);
28776 }
28777
28778 static inline long interrupt_not_for_us(ctlr_info_t *h)
28779 {
28780 - return ((h->access.intr_pending(h) == 0) ||
28781 + return ((h->access->intr_pending(h) == 0) ||
28782 (h->interrupts_enabled == 0));
28783 }
28784
28785 @@ -3486,7 +3488,7 @@ static inline u32 next_command(ctlr_info_t *h)
28786 u32 a;
28787
28788 if (unlikely(!(h->transMethod & CFGTBL_Trans_Performant)))
28789 - return h->access.command_completed(h);
28790 + return h->access->command_completed(h);
28791
28792 if ((*(h->reply_pool_head) & 1) == (h->reply_pool_wraparound)) {
28793 a = *(h->reply_pool_head); /* Next cmd in ring buffer */
28794 @@ -4044,7 +4046,7 @@ static void __devinit cciss_put_controller_into_performant_mode(ctlr_info_t *h)
28795 trans_support & CFGTBL_Trans_use_short_tags);
28796
28797 /* Change the access methods to the performant access methods */
28798 - h->access = SA5_performant_access;
28799 + h->access = &SA5_performant_access;
28800 h->transMethod = CFGTBL_Trans_Performant;
28801
28802 return;
28803 @@ -4316,7 +4318,7 @@ static int __devinit cciss_pci_init(ctlr_info_t *h)
28804 if (prod_index < 0)
28805 return -ENODEV;
28806 h->product_name = products[prod_index].product_name;
28807 - h->access = *(products[prod_index].access);
28808 + h->access = products[prod_index].access;
28809
28810 if (cciss_board_disabled(h)) {
28811 dev_warn(&h->pdev->dev, "controller appears to be disabled\n");
28812 @@ -5041,7 +5043,7 @@ reinit_after_soft_reset:
28813 }
28814
28815 /* make sure the board interrupts are off */
28816 - h->access.set_intr_mask(h, CCISS_INTR_OFF);
28817 + h->access->set_intr_mask(h, CCISS_INTR_OFF);
28818 rc = cciss_request_irq(h, do_cciss_msix_intr, do_cciss_intx);
28819 if (rc)
28820 goto clean2;
28821 @@ -5093,7 +5095,7 @@ reinit_after_soft_reset:
28822 * fake ones to scoop up any residual completions.
28823 */
28824 spin_lock_irqsave(&h->lock, flags);
28825 - h->access.set_intr_mask(h, CCISS_INTR_OFF);
28826 + h->access->set_intr_mask(h, CCISS_INTR_OFF);
28827 spin_unlock_irqrestore(&h->lock, flags);
28828 free_irq(h->intr[h->intr_mode], h);
28829 rc = cciss_request_irq(h, cciss_msix_discard_completions,
28830 @@ -5113,9 +5115,9 @@ reinit_after_soft_reset:
28831 dev_info(&h->pdev->dev, "Board READY.\n");
28832 dev_info(&h->pdev->dev,
28833 "Waiting for stale completions to drain.\n");
28834 - h->access.set_intr_mask(h, CCISS_INTR_ON);
28835 + h->access->set_intr_mask(h, CCISS_INTR_ON);
28836 msleep(10000);
28837 - h->access.set_intr_mask(h, CCISS_INTR_OFF);
28838 + h->access->set_intr_mask(h, CCISS_INTR_OFF);
28839
28840 rc = controller_reset_failed(h->cfgtable);
28841 if (rc)
28842 @@ -5138,7 +5140,7 @@ reinit_after_soft_reset:
28843 cciss_scsi_setup(h);
28844
28845 /* Turn the interrupts on so we can service requests */
28846 - h->access.set_intr_mask(h, CCISS_INTR_ON);
28847 + h->access->set_intr_mask(h, CCISS_INTR_ON);
28848
28849 /* Get the firmware version */
28850 inq_buff = kzalloc(sizeof(InquiryData_struct), GFP_KERNEL);
28851 @@ -5211,7 +5213,7 @@ static void cciss_shutdown(struct pci_dev *pdev)
28852 kfree(flush_buf);
28853 if (return_code != IO_OK)
28854 dev_warn(&h->pdev->dev, "Error flushing cache\n");
28855 - h->access.set_intr_mask(h, CCISS_INTR_OFF);
28856 + h->access->set_intr_mask(h, CCISS_INTR_OFF);
28857 free_irq(h->intr[h->intr_mode], h);
28858 }
28859
28860 diff --git a/drivers/block/cciss.h b/drivers/block/cciss.h
28861 index 7fda30e..eb5dfe0 100644
28862 --- a/drivers/block/cciss.h
28863 +++ b/drivers/block/cciss.h
28864 @@ -101,7 +101,7 @@ struct ctlr_info
28865 /* information about each logical volume */
28866 drive_info_struct *drv[CISS_MAX_LUN];
28867
28868 - struct access_method access;
28869 + struct access_method *access;
28870
28871 /* queue and queue Info */
28872 struct list_head reqQ;
28873 diff --git a/drivers/block/cpqarray.c b/drivers/block/cpqarray.c
28874 index 9125bbe..eede5c8 100644
28875 --- a/drivers/block/cpqarray.c
28876 +++ b/drivers/block/cpqarray.c
28877 @@ -404,7 +404,7 @@ static int __devinit cpqarray_register_ctlr( int i, struct pci_dev *pdev)
28878 if (register_blkdev(COMPAQ_SMART2_MAJOR+i, hba[i]->devname)) {
28879 goto Enomem4;
28880 }
28881 - hba[i]->access.set_intr_mask(hba[i], 0);
28882 + hba[i]->access->set_intr_mask(hba[i], 0);
28883 if (request_irq(hba[i]->intr, do_ida_intr,
28884 IRQF_DISABLED|IRQF_SHARED, hba[i]->devname, hba[i]))
28885 {
28886 @@ -459,7 +459,7 @@ static int __devinit cpqarray_register_ctlr( int i, struct pci_dev *pdev)
28887 add_timer(&hba[i]->timer);
28888
28889 /* Enable IRQ now that spinlock and rate limit timer are set up */
28890 - hba[i]->access.set_intr_mask(hba[i], FIFO_NOT_EMPTY);
28891 + hba[i]->access->set_intr_mask(hba[i], FIFO_NOT_EMPTY);
28892
28893 for(j=0; j<NWD; j++) {
28894 struct gendisk *disk = ida_gendisk[i][j];
28895 @@ -694,7 +694,7 @@ DBGINFO(
28896 for(i=0; i<NR_PRODUCTS; i++) {
28897 if (board_id == products[i].board_id) {
28898 c->product_name = products[i].product_name;
28899 - c->access = *(products[i].access);
28900 + c->access = products[i].access;
28901 break;
28902 }
28903 }
28904 @@ -792,7 +792,7 @@ static int __devinit cpqarray_eisa_detect(void)
28905 hba[ctlr]->intr = intr;
28906 sprintf(hba[ctlr]->devname, "ida%d", nr_ctlr);
28907 hba[ctlr]->product_name = products[j].product_name;
28908 - hba[ctlr]->access = *(products[j].access);
28909 + hba[ctlr]->access = products[j].access;
28910 hba[ctlr]->ctlr = ctlr;
28911 hba[ctlr]->board_id = board_id;
28912 hba[ctlr]->pci_dev = NULL; /* not PCI */
28913 @@ -980,7 +980,7 @@ static void start_io(ctlr_info_t *h)
28914
28915 while((c = h->reqQ) != NULL) {
28916 /* Can't do anything if we're busy */
28917 - if (h->access.fifo_full(h) == 0)
28918 + if (h->access->fifo_full(h) == 0)
28919 return;
28920
28921 /* Get the first entry from the request Q */
28922 @@ -988,7 +988,7 @@ static void start_io(ctlr_info_t *h)
28923 h->Qdepth--;
28924
28925 /* Tell the controller to do our bidding */
28926 - h->access.submit_command(h, c);
28927 + h->access->submit_command(h, c);
28928
28929 /* Get onto the completion Q */
28930 addQ(&h->cmpQ, c);
28931 @@ -1050,7 +1050,7 @@ static irqreturn_t do_ida_intr(int irq, void *dev_id)
28932 unsigned long flags;
28933 __u32 a,a1;
28934
28935 - istat = h->access.intr_pending(h);
28936 + istat = h->access->intr_pending(h);
28937 /* Is this interrupt for us? */
28938 if (istat == 0)
28939 return IRQ_NONE;
28940 @@ -1061,7 +1061,7 @@ static irqreturn_t do_ida_intr(int irq, void *dev_id)
28941 */
28942 spin_lock_irqsave(IDA_LOCK(h->ctlr), flags);
28943 if (istat & FIFO_NOT_EMPTY) {
28944 - while((a = h->access.command_completed(h))) {
28945 + while((a = h->access->command_completed(h))) {
28946 a1 = a; a &= ~3;
28947 if ((c = h->cmpQ) == NULL)
28948 {
28949 @@ -1449,11 +1449,11 @@ static int sendcmd(
28950 /*
28951 * Disable interrupt
28952 */
28953 - info_p->access.set_intr_mask(info_p, 0);
28954 + info_p->access->set_intr_mask(info_p, 0);
28955 /* Make sure there is room in the command FIFO */
28956 /* Actually it should be completely empty at this time. */
28957 for (i = 200000; i > 0; i--) {
28958 - temp = info_p->access.fifo_full(info_p);
28959 + temp = info_p->access->fifo_full(info_p);
28960 if (temp != 0) {
28961 break;
28962 }
28963 @@ -1466,7 +1466,7 @@ DBG(
28964 /*
28965 * Send the cmd
28966 */
28967 - info_p->access.submit_command(info_p, c);
28968 + info_p->access->submit_command(info_p, c);
28969 complete = pollcomplete(ctlr);
28970
28971 pci_unmap_single(info_p->pci_dev, (dma_addr_t) c->req.sg[0].addr,
28972 @@ -1549,9 +1549,9 @@ static int revalidate_allvol(ctlr_info_t *host)
28973 * we check the new geometry. Then turn interrupts back on when
28974 * we're done.
28975 */
28976 - host->access.set_intr_mask(host, 0);
28977 + host->access->set_intr_mask(host, 0);
28978 getgeometry(ctlr);
28979 - host->access.set_intr_mask(host, FIFO_NOT_EMPTY);
28980 + host->access->set_intr_mask(host, FIFO_NOT_EMPTY);
28981
28982 for(i=0; i<NWD; i++) {
28983 struct gendisk *disk = ida_gendisk[ctlr][i];
28984 @@ -1591,7 +1591,7 @@ static int pollcomplete(int ctlr)
28985 /* Wait (up to 2 seconds) for a command to complete */
28986
28987 for (i = 200000; i > 0; i--) {
28988 - done = hba[ctlr]->access.command_completed(hba[ctlr]);
28989 + done = hba[ctlr]->access->command_completed(hba[ctlr]);
28990 if (done == 0) {
28991 udelay(10); /* a short fixed delay */
28992 } else
28993 diff --git a/drivers/block/cpqarray.h b/drivers/block/cpqarray.h
28994 index be73e9d..7fbf140 100644
28995 --- a/drivers/block/cpqarray.h
28996 +++ b/drivers/block/cpqarray.h
28997 @@ -99,7 +99,7 @@ struct ctlr_info {
28998 drv_info_t drv[NWD];
28999 struct proc_dir_entry *proc;
29000
29001 - struct access_method access;
29002 + struct access_method *access;
29003
29004 cmdlist_t *reqQ;
29005 cmdlist_t *cmpQ;
29006 diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h
29007 index 02f013a..afeba24 100644
29008 --- a/drivers/block/drbd/drbd_int.h
29009 +++ b/drivers/block/drbd/drbd_int.h
29010 @@ -735,7 +735,7 @@ struct drbd_request;
29011 struct drbd_epoch {
29012 struct list_head list;
29013 unsigned int barrier_nr;
29014 - atomic_t epoch_size; /* increased on every request added. */
29015 + atomic_unchecked_t epoch_size; /* increased on every request added. */
29016 atomic_t active; /* increased on every req. added, and dec on every finished. */
29017 unsigned long flags;
29018 };
29019 @@ -1110,7 +1110,7 @@ struct drbd_conf {
29020 void *int_dig_in;
29021 void *int_dig_vv;
29022 wait_queue_head_t seq_wait;
29023 - atomic_t packet_seq;
29024 + atomic_unchecked_t packet_seq;
29025 unsigned int peer_seq;
29026 spinlock_t peer_seq_lock;
29027 unsigned int minor;
29028 @@ -1651,30 +1651,30 @@ static inline int drbd_setsockopt(struct socket *sock, int level, int optname,
29029
29030 static inline void drbd_tcp_cork(struct socket *sock)
29031 {
29032 - int __user val = 1;
29033 + int val = 1;
29034 (void) drbd_setsockopt(sock, SOL_TCP, TCP_CORK,
29035 - (char __user *)&val, sizeof(val));
29036 + (char __force_user *)&val, sizeof(val));
29037 }
29038
29039 static inline void drbd_tcp_uncork(struct socket *sock)
29040 {
29041 - int __user val = 0;
29042 + int val = 0;
29043 (void) drbd_setsockopt(sock, SOL_TCP, TCP_CORK,
29044 - (char __user *)&val, sizeof(val));
29045 + (char __force_user *)&val, sizeof(val));
29046 }
29047
29048 static inline void drbd_tcp_nodelay(struct socket *sock)
29049 {
29050 - int __user val = 1;
29051 + int val = 1;
29052 (void) drbd_setsockopt(sock, SOL_TCP, TCP_NODELAY,
29053 - (char __user *)&val, sizeof(val));
29054 + (char __force_user *)&val, sizeof(val));
29055 }
29056
29057 static inline void drbd_tcp_quickack(struct socket *sock)
29058 {
29059 - int __user val = 2;
29060 + int val = 2;
29061 (void) drbd_setsockopt(sock, SOL_TCP, TCP_QUICKACK,
29062 - (char __user *)&val, sizeof(val));
29063 + (char __force_user *)&val, sizeof(val));
29064 }
29065
29066 void drbd_bump_write_ordering(struct drbd_conf *mdev, enum write_ordering_e wo);
29067 diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c
29068 index 920ede2..cb827ba 100644
29069 --- a/drivers/block/drbd/drbd_main.c
29070 +++ b/drivers/block/drbd/drbd_main.c
29071 @@ -2555,7 +2555,7 @@ static int _drbd_send_ack(struct drbd_conf *mdev, enum drbd_packets cmd,
29072 p.sector = sector;
29073 p.block_id = block_id;
29074 p.blksize = blksize;
29075 - p.seq_num = cpu_to_be32(atomic_add_return(1, &mdev->packet_seq));
29076 + p.seq_num = cpu_to_be32(atomic_add_return_unchecked(1, &mdev->packet_seq));
29077
29078 if (!mdev->meta.socket || mdev->state.conn < C_CONNECTED)
29079 return false;
29080 @@ -2853,7 +2853,7 @@ int drbd_send_dblock(struct drbd_conf *mdev, struct drbd_request *req)
29081
29082 p.sector = cpu_to_be64(req->sector);
29083 p.block_id = (unsigned long)req;
29084 - p.seq_num = cpu_to_be32(atomic_add_return(1, &mdev->packet_seq));
29085 + p.seq_num = cpu_to_be32(atomic_add_return_unchecked(1, &mdev->packet_seq));
29086
29087 dp_flags = bio_flags_to_wire(mdev, req->master_bio->bi_rw);
29088
29089 @@ -3138,7 +3138,7 @@ void drbd_init_set_defaults(struct drbd_conf *mdev)
29090 atomic_set(&mdev->unacked_cnt, 0);
29091 atomic_set(&mdev->local_cnt, 0);
29092 atomic_set(&mdev->net_cnt, 0);
29093 - atomic_set(&mdev->packet_seq, 0);
29094 + atomic_set_unchecked(&mdev->packet_seq, 0);
29095 atomic_set(&mdev->pp_in_use, 0);
29096 atomic_set(&mdev->pp_in_use_by_net, 0);
29097 atomic_set(&mdev->rs_sect_in, 0);
29098 @@ -3220,8 +3220,8 @@ void drbd_mdev_cleanup(struct drbd_conf *mdev)
29099 mdev->receiver.t_state);
29100
29101 /* no need to lock it, I'm the only thread alive */
29102 - if (atomic_read(&mdev->current_epoch->epoch_size) != 0)
29103 - dev_err(DEV, "epoch_size:%d\n", atomic_read(&mdev->current_epoch->epoch_size));
29104 + if (atomic_read_unchecked(&mdev->current_epoch->epoch_size) != 0)
29105 + dev_err(DEV, "epoch_size:%d\n", atomic_read_unchecked(&mdev->current_epoch->epoch_size));
29106 mdev->al_writ_cnt =
29107 mdev->bm_writ_cnt =
29108 mdev->read_cnt =
29109 diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c
29110 index 6d4de6a..7b7ad4b 100644
29111 --- a/drivers/block/drbd/drbd_nl.c
29112 +++ b/drivers/block/drbd/drbd_nl.c
29113 @@ -2387,7 +2387,7 @@ static void drbd_connector_callback(struct cn_msg *req, struct netlink_skb_parms
29114 module_put(THIS_MODULE);
29115 }
29116
29117 -static atomic_t drbd_nl_seq = ATOMIC_INIT(2); /* two. */
29118 +static atomic_unchecked_t drbd_nl_seq = ATOMIC_INIT(2); /* two. */
29119
29120 static unsigned short *
29121 __tl_add_blob(unsigned short *tl, enum drbd_tags tag, const void *data,
29122 @@ -2458,7 +2458,7 @@ void drbd_bcast_state(struct drbd_conf *mdev, union drbd_state state)
29123 cn_reply->id.idx = CN_IDX_DRBD;
29124 cn_reply->id.val = CN_VAL_DRBD;
29125
29126 - cn_reply->seq = atomic_add_return(1, &drbd_nl_seq);
29127 + cn_reply->seq = atomic_add_return_unchecked(1, &drbd_nl_seq);
29128 cn_reply->ack = 0; /* not used here. */
29129 cn_reply->len = sizeof(struct drbd_nl_cfg_reply) +
29130 (int)((char *)tl - (char *)reply->tag_list);
29131 @@ -2490,7 +2490,7 @@ void drbd_bcast_ev_helper(struct drbd_conf *mdev, char *helper_name)
29132 cn_reply->id.idx = CN_IDX_DRBD;
29133 cn_reply->id.val = CN_VAL_DRBD;
29134
29135 - cn_reply->seq = atomic_add_return(1, &drbd_nl_seq);
29136 + cn_reply->seq = atomic_add_return_unchecked(1, &drbd_nl_seq);
29137 cn_reply->ack = 0; /* not used here. */
29138 cn_reply->len = sizeof(struct drbd_nl_cfg_reply) +
29139 (int)((char *)tl - (char *)reply->tag_list);
29140 @@ -2568,7 +2568,7 @@ void drbd_bcast_ee(struct drbd_conf *mdev,
29141 cn_reply->id.idx = CN_IDX_DRBD;
29142 cn_reply->id.val = CN_VAL_DRBD;
29143
29144 - cn_reply->seq = atomic_add_return(1,&drbd_nl_seq);
29145 + cn_reply->seq = atomic_add_return_unchecked(1,&drbd_nl_seq);
29146 cn_reply->ack = 0; // not used here.
29147 cn_reply->len = sizeof(struct drbd_nl_cfg_reply) +
29148 (int)((char*)tl - (char*)reply->tag_list);
29149 @@ -2607,7 +2607,7 @@ void drbd_bcast_sync_progress(struct drbd_conf *mdev)
29150 cn_reply->id.idx = CN_IDX_DRBD;
29151 cn_reply->id.val = CN_VAL_DRBD;
29152
29153 - cn_reply->seq = atomic_add_return(1, &drbd_nl_seq);
29154 + cn_reply->seq = atomic_add_return_unchecked(1, &drbd_nl_seq);
29155 cn_reply->ack = 0; /* not used here. */
29156 cn_reply->len = sizeof(struct drbd_nl_cfg_reply) +
29157 (int)((char *)tl - (char *)reply->tag_list);
29158 diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c
29159 index ea4836e..272d72a 100644
29160 --- a/drivers/block/drbd/drbd_receiver.c
29161 +++ b/drivers/block/drbd/drbd_receiver.c
29162 @@ -893,7 +893,7 @@ retry:
29163 sock->sk->sk_sndtimeo = mdev->net_conf->timeout*HZ/10;
29164 sock->sk->sk_rcvtimeo = MAX_SCHEDULE_TIMEOUT;
29165
29166 - atomic_set(&mdev->packet_seq, 0);
29167 + atomic_set_unchecked(&mdev->packet_seq, 0);
29168 mdev->peer_seq = 0;
29169
29170 if (drbd_send_protocol(mdev) == -1)
29171 @@ -994,7 +994,7 @@ static enum finish_epoch drbd_may_finish_epoch(struct drbd_conf *mdev,
29172 do {
29173 next_epoch = NULL;
29174
29175 - epoch_size = atomic_read(&epoch->epoch_size);
29176 + epoch_size = atomic_read_unchecked(&epoch->epoch_size);
29177
29178 switch (ev & ~EV_CLEANUP) {
29179 case EV_PUT:
29180 @@ -1030,7 +1030,7 @@ static enum finish_epoch drbd_may_finish_epoch(struct drbd_conf *mdev,
29181 rv = FE_DESTROYED;
29182 } else {
29183 epoch->flags = 0;
29184 - atomic_set(&epoch->epoch_size, 0);
29185 + atomic_set_unchecked(&epoch->epoch_size, 0);
29186 /* atomic_set(&epoch->active, 0); is already zero */
29187 if (rv == FE_STILL_LIVE)
29188 rv = FE_RECYCLED;
29189 @@ -1205,14 +1205,14 @@ static int receive_Barrier(struct drbd_conf *mdev, enum drbd_packets cmd, unsign
29190 drbd_wait_ee_list_empty(mdev, &mdev->active_ee);
29191 drbd_flush(mdev);
29192
29193 - if (atomic_read(&mdev->current_epoch->epoch_size)) {
29194 + if (atomic_read_unchecked(&mdev->current_epoch->epoch_size)) {
29195 epoch = kmalloc(sizeof(struct drbd_epoch), GFP_NOIO);
29196 if (epoch)
29197 break;
29198 }
29199
29200 epoch = mdev->current_epoch;
29201 - wait_event(mdev->ee_wait, atomic_read(&epoch->epoch_size) == 0);
29202 + wait_event(mdev->ee_wait, atomic_read_unchecked(&epoch->epoch_size) == 0);
29203
29204 D_ASSERT(atomic_read(&epoch->active) == 0);
29205 D_ASSERT(epoch->flags == 0);
29206 @@ -1224,11 +1224,11 @@ static int receive_Barrier(struct drbd_conf *mdev, enum drbd_packets cmd, unsign
29207 }
29208
29209 epoch->flags = 0;
29210 - atomic_set(&epoch->epoch_size, 0);
29211 + atomic_set_unchecked(&epoch->epoch_size, 0);
29212 atomic_set(&epoch->active, 0);
29213
29214 spin_lock(&mdev->epoch_lock);
29215 - if (atomic_read(&mdev->current_epoch->epoch_size)) {
29216 + if (atomic_read_unchecked(&mdev->current_epoch->epoch_size)) {
29217 list_add(&epoch->list, &mdev->current_epoch->list);
29218 mdev->current_epoch = epoch;
29219 mdev->epochs++;
29220 @@ -1695,7 +1695,7 @@ static int receive_Data(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned
29221 spin_unlock(&mdev->peer_seq_lock);
29222
29223 drbd_send_ack_dp(mdev, P_NEG_ACK, p, data_size);
29224 - atomic_inc(&mdev->current_epoch->epoch_size);
29225 + atomic_inc_unchecked(&mdev->current_epoch->epoch_size);
29226 return drbd_drain_block(mdev, data_size);
29227 }
29228
29229 @@ -1721,7 +1721,7 @@ static int receive_Data(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned
29230
29231 spin_lock(&mdev->epoch_lock);
29232 e->epoch = mdev->current_epoch;
29233 - atomic_inc(&e->epoch->epoch_size);
29234 + atomic_inc_unchecked(&e->epoch->epoch_size);
29235 atomic_inc(&e->epoch->active);
29236 spin_unlock(&mdev->epoch_lock);
29237
29238 @@ -3936,7 +3936,7 @@ static void drbd_disconnect(struct drbd_conf *mdev)
29239 D_ASSERT(list_empty(&mdev->done_ee));
29240
29241 /* ok, no more ee's on the fly, it is safe to reset the epoch_size */
29242 - atomic_set(&mdev->current_epoch->epoch_size, 0);
29243 + atomic_set_unchecked(&mdev->current_epoch->epoch_size, 0);
29244 D_ASSERT(list_empty(&mdev->current_epoch->list));
29245 }
29246
29247 diff --git a/drivers/block/loop.c b/drivers/block/loop.c
29248 index 3bba655..6151b66 100644
29249 --- a/drivers/block/loop.c
29250 +++ b/drivers/block/loop.c
29251 @@ -226,7 +226,7 @@ static int __do_lo_send_write(struct file *file,
29252 mm_segment_t old_fs = get_fs();
29253
29254 set_fs(get_ds());
29255 - bw = file->f_op->write(file, buf, len, &pos);
29256 + bw = file->f_op->write(file, (const char __force_user *)buf, len, &pos);
29257 set_fs(old_fs);
29258 if (likely(bw == len))
29259 return 0;
29260 diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
29261 index ea6f632..eafb192 100644
29262 --- a/drivers/char/Kconfig
29263 +++ b/drivers/char/Kconfig
29264 @@ -8,7 +8,8 @@ source "drivers/tty/Kconfig"
29265
29266 config DEVKMEM
29267 bool "/dev/kmem virtual device support"
29268 - default y
29269 + default n
29270 + depends on !GRKERNSEC_KMEM
29271 help
29272 Say Y here if you want to support the /dev/kmem device. The
29273 /dev/kmem device is rarely used, but can be used for certain
29274 @@ -581,6 +582,7 @@ config DEVPORT
29275 bool
29276 depends on !M68K
29277 depends on ISA || PCI
29278 + depends on !GRKERNSEC_KMEM
29279 default y
29280
29281 source "drivers/s390/char/Kconfig"
29282 diff --git a/drivers/char/agp/frontend.c b/drivers/char/agp/frontend.c
29283 index 2e04433..22afc64 100644
29284 --- a/drivers/char/agp/frontend.c
29285 +++ b/drivers/char/agp/frontend.c
29286 @@ -817,7 +817,7 @@ static int agpioc_reserve_wrap(struct agp_file_private *priv, void __user *arg)
29287 if (copy_from_user(&reserve, arg, sizeof(struct agp_region)))
29288 return -EFAULT;
29289
29290 - if ((unsigned) reserve.seg_count >= ~0U/sizeof(struct agp_segment))
29291 + if ((unsigned) reserve.seg_count >= ~0U/sizeof(struct agp_segment_priv))
29292 return -EFAULT;
29293
29294 client = agp_find_client_by_pid(reserve.pid);
29295 diff --git a/drivers/char/genrtc.c b/drivers/char/genrtc.c
29296 index 21cb980..f15107c 100644
29297 --- a/drivers/char/genrtc.c
29298 +++ b/drivers/char/genrtc.c
29299 @@ -272,6 +272,7 @@ static int gen_rtc_ioctl(struct file *file,
29300 switch (cmd) {
29301
29302 case RTC_PLL_GET:
29303 + memset(&pll, 0, sizeof(pll));
29304 if (get_rtc_pll(&pll))
29305 return -EINVAL;
29306 else
29307 diff --git a/drivers/char/hpet.c b/drivers/char/hpet.c
29308 index dfd7876..c0b0885 100644
29309 --- a/drivers/char/hpet.c
29310 +++ b/drivers/char/hpet.c
29311 @@ -571,7 +571,7 @@ static inline unsigned long hpet_time_div(struct hpets *hpets,
29312 }
29313
29314 static int
29315 -hpet_ioctl_common(struct hpet_dev *devp, int cmd, unsigned long arg,
29316 +hpet_ioctl_common(struct hpet_dev *devp, unsigned int cmd, unsigned long arg,
29317 struct hpet_info *info)
29318 {
29319 struct hpet_timer __iomem *timer;
29320 diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c
29321 index 2c29942..604c5ba 100644
29322 --- a/drivers/char/ipmi/ipmi_msghandler.c
29323 +++ b/drivers/char/ipmi/ipmi_msghandler.c
29324 @@ -420,7 +420,7 @@ struct ipmi_smi {
29325 struct proc_dir_entry *proc_dir;
29326 char proc_dir_name[10];
29327
29328 - atomic_t stats[IPMI_NUM_STATS];
29329 + atomic_unchecked_t stats[IPMI_NUM_STATS];
29330
29331 /*
29332 * run_to_completion duplicate of smb_info, smi_info
29333 @@ -453,9 +453,9 @@ static DEFINE_MUTEX(smi_watchers_mutex);
29334
29335
29336 #define ipmi_inc_stat(intf, stat) \
29337 - atomic_inc(&(intf)->stats[IPMI_STAT_ ## stat])
29338 + atomic_inc_unchecked(&(intf)->stats[IPMI_STAT_ ## stat])
29339 #define ipmi_get_stat(intf, stat) \
29340 - ((unsigned int) atomic_read(&(intf)->stats[IPMI_STAT_ ## stat]))
29341 + ((unsigned int) atomic_read_unchecked(&(intf)->stats[IPMI_STAT_ ## stat]))
29342
29343 static int is_lan_addr(struct ipmi_addr *addr)
29344 {
29345 @@ -2884,7 +2884,7 @@ int ipmi_register_smi(struct ipmi_smi_handlers *handlers,
29346 INIT_LIST_HEAD(&intf->cmd_rcvrs);
29347 init_waitqueue_head(&intf->waitq);
29348 for (i = 0; i < IPMI_NUM_STATS; i++)
29349 - atomic_set(&intf->stats[i], 0);
29350 + atomic_set_unchecked(&intf->stats[i], 0);
29351
29352 intf->proc_dir = NULL;
29353
29354 diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c
29355 index 1e638ff..a869ef5 100644
29356 --- a/drivers/char/ipmi/ipmi_si_intf.c
29357 +++ b/drivers/char/ipmi/ipmi_si_intf.c
29358 @@ -275,7 +275,7 @@ struct smi_info {
29359 unsigned char slave_addr;
29360
29361 /* Counters and things for the proc filesystem. */
29362 - atomic_t stats[SI_NUM_STATS];
29363 + atomic_unchecked_t stats[SI_NUM_STATS];
29364
29365 struct task_struct *thread;
29366
29367 @@ -284,9 +284,9 @@ struct smi_info {
29368 };
29369
29370 #define smi_inc_stat(smi, stat) \
29371 - atomic_inc(&(smi)->stats[SI_STAT_ ## stat])
29372 + atomic_inc_unchecked(&(smi)->stats[SI_STAT_ ## stat])
29373 #define smi_get_stat(smi, stat) \
29374 - ((unsigned int) atomic_read(&(smi)->stats[SI_STAT_ ## stat]))
29375 + ((unsigned int) atomic_read_unchecked(&(smi)->stats[SI_STAT_ ## stat]))
29376
29377 #define SI_MAX_PARMS 4
29378
29379 @@ -3209,7 +3209,7 @@ static int try_smi_init(struct smi_info *new_smi)
29380 atomic_set(&new_smi->req_events, 0);
29381 new_smi->run_to_completion = 0;
29382 for (i = 0; i < SI_NUM_STATS; i++)
29383 - atomic_set(&new_smi->stats[i], 0);
29384 + atomic_set_unchecked(&new_smi->stats[i], 0);
29385
29386 new_smi->interrupt_disabled = 1;
29387 atomic_set(&new_smi->stop_operation, 0);
29388 diff --git a/drivers/char/mbcs.c b/drivers/char/mbcs.c
29389 index 47ff7e4..0c7d340 100644
29390 --- a/drivers/char/mbcs.c
29391 +++ b/drivers/char/mbcs.c
29392 @@ -799,7 +799,7 @@ static int mbcs_remove(struct cx_dev *dev)
29393 return 0;
29394 }
29395
29396 -static const struct cx_device_id __devinitdata mbcs_id_table[] = {
29397 +static const struct cx_device_id __devinitconst mbcs_id_table[] = {
29398 {
29399 .part_num = MBCS_PART_NUM,
29400 .mfg_num = MBCS_MFG_NUM,
29401 diff --git a/drivers/char/mem.c b/drivers/char/mem.c
29402 index 67c3371..ba8429d 100644
29403 --- a/drivers/char/mem.c
29404 +++ b/drivers/char/mem.c
29405 @@ -18,6 +18,7 @@
29406 #include <linux/raw.h>
29407 #include <linux/tty.h>
29408 #include <linux/capability.h>
29409 +#include <linux/security.h>
29410 #include <linux/ptrace.h>
29411 #include <linux/device.h>
29412 #include <linux/highmem.h>
29413 @@ -35,6 +36,10 @@
29414 # include <linux/efi.h>
29415 #endif
29416
29417 +#if defined(CONFIG_GRKERNSEC) && !defined(CONFIG_GRKERNSEC_NO_RBAC)
29418 +extern const struct file_operations grsec_fops;
29419 +#endif
29420 +
29421 static inline unsigned long size_inside_page(unsigned long start,
29422 unsigned long size)
29423 {
29424 @@ -66,9 +71,13 @@ static inline int range_is_allowed(unsigned long pfn, unsigned long size)
29425
29426 while (cursor < to) {
29427 if (!devmem_is_allowed(pfn)) {
29428 +#ifdef CONFIG_GRKERNSEC_KMEM
29429 + gr_handle_mem_readwrite(from, to);
29430 +#else
29431 printk(KERN_INFO
29432 "Program %s tried to access /dev/mem between %Lx->%Lx.\n",
29433 current->comm, from, to);
29434 +#endif
29435 return 0;
29436 }
29437 cursor += PAGE_SIZE;
29438 @@ -76,6 +85,11 @@ static inline int range_is_allowed(unsigned long pfn, unsigned long size)
29439 }
29440 return 1;
29441 }
29442 +#elif defined(CONFIG_GRKERNSEC_KMEM)
29443 +static inline int range_is_allowed(unsigned long pfn, unsigned long size)
29444 +{
29445 + return 0;
29446 +}
29447 #else
29448 static inline int range_is_allowed(unsigned long pfn, unsigned long size)
29449 {
29450 @@ -118,6 +132,7 @@ static ssize_t read_mem(struct file *file, char __user *buf,
29451
29452 while (count > 0) {
29453 unsigned long remaining;
29454 + char *temp;
29455
29456 sz = size_inside_page(p, count);
29457
29458 @@ -133,7 +148,23 @@ static ssize_t read_mem(struct file *file, char __user *buf,
29459 if (!ptr)
29460 return -EFAULT;
29461
29462 - remaining = copy_to_user(buf, ptr, sz);
29463 +#ifdef CONFIG_PAX_USERCOPY
29464 + temp = kmalloc(sz, GFP_KERNEL|GFP_USERCOPY);
29465 + if (!temp) {
29466 + unxlate_dev_mem_ptr(p, ptr);
29467 + return -ENOMEM;
29468 + }
29469 + memcpy(temp, ptr, sz);
29470 +#else
29471 + temp = ptr;
29472 +#endif
29473 +
29474 + remaining = copy_to_user(buf, temp, sz);
29475 +
29476 +#ifdef CONFIG_PAX_USERCOPY
29477 + kfree(temp);
29478 +#endif
29479 +
29480 unxlate_dev_mem_ptr(p, ptr);
29481 if (remaining)
29482 return -EFAULT;
29483 @@ -396,9 +427,8 @@ static ssize_t read_kmem(struct file *file, char __user *buf,
29484 size_t count, loff_t *ppos)
29485 {
29486 unsigned long p = *ppos;
29487 - ssize_t low_count, read, sz;
29488 + ssize_t low_count, read, sz, err = 0;
29489 char * kbuf; /* k-addr because vread() takes vmlist_lock rwlock */
29490 - int err = 0;
29491
29492 read = 0;
29493 if (p < (unsigned long) high_memory) {
29494 @@ -420,6 +450,8 @@ static ssize_t read_kmem(struct file *file, char __user *buf,
29495 }
29496 #endif
29497 while (low_count > 0) {
29498 + char *temp;
29499 +
29500 sz = size_inside_page(p, low_count);
29501
29502 /*
29503 @@ -429,7 +461,22 @@ static ssize_t read_kmem(struct file *file, char __user *buf,
29504 */
29505 kbuf = xlate_dev_kmem_ptr((char *)p);
29506
29507 - if (copy_to_user(buf, kbuf, sz))
29508 +#ifdef CONFIG_PAX_USERCOPY
29509 + temp = kmalloc(sz, GFP_KERNEL|GFP_USERCOPY);
29510 + if (!temp)
29511 + return -ENOMEM;
29512 + memcpy(temp, kbuf, sz);
29513 +#else
29514 + temp = kbuf;
29515 +#endif
29516 +
29517 + err = copy_to_user(buf, temp, sz);
29518 +
29519 +#ifdef CONFIG_PAX_USERCOPY
29520 + kfree(temp);
29521 +#endif
29522 +
29523 + if (err)
29524 return -EFAULT;
29525 buf += sz;
29526 p += sz;
29527 @@ -831,6 +878,9 @@ static const struct memdev {
29528 #ifdef CONFIG_CRASH_DUMP
29529 [12] = { "oldmem", 0, &oldmem_fops, NULL },
29530 #endif
29531 +#if defined(CONFIG_GRKERNSEC) && !defined(CONFIG_GRKERNSEC_NO_RBAC)
29532 + [13] = { "grsec",S_IRUSR | S_IWUGO, &grsec_fops, NULL },
29533 +#endif
29534 };
29535
29536 static int memory_open(struct inode *inode, struct file *filp)
29537 diff --git a/drivers/char/nvram.c b/drivers/char/nvram.c
29538 index 9df78e2..01ba9ae 100644
29539 --- a/drivers/char/nvram.c
29540 +++ b/drivers/char/nvram.c
29541 @@ -247,7 +247,7 @@ static ssize_t nvram_read(struct file *file, char __user *buf,
29542
29543 spin_unlock_irq(&rtc_lock);
29544
29545 - if (copy_to_user(buf, contents, tmp - contents))
29546 + if (tmp - contents > sizeof(contents) || copy_to_user(buf, contents, tmp - contents))
29547 return -EFAULT;
29548
29549 *ppos = i;
29550 diff --git a/drivers/char/pcmcia/synclink_cs.c b/drivers/char/pcmcia/synclink_cs.c
29551 index 0a484b4..f48ccd1 100644
29552 --- a/drivers/char/pcmcia/synclink_cs.c
29553 +++ b/drivers/char/pcmcia/synclink_cs.c
29554 @@ -2340,9 +2340,9 @@ static void mgslpc_close(struct tty_struct *tty, struct file * filp)
29555
29556 if (debug_level >= DEBUG_LEVEL_INFO)
29557 printk("%s(%d):mgslpc_close(%s) entry, count=%d\n",
29558 - __FILE__,__LINE__, info->device_name, port->count);
29559 + __FILE__,__LINE__, info->device_name, atomic_read(&port->count));
29560
29561 - WARN_ON(!port->count);
29562 + WARN_ON(!atomic_read(&port->count));
29563
29564 if (tty_port_close_start(port, tty, filp) == 0)
29565 goto cleanup;
29566 @@ -2360,7 +2360,7 @@ static void mgslpc_close(struct tty_struct *tty, struct file * filp)
29567 cleanup:
29568 if (debug_level >= DEBUG_LEVEL_INFO)
29569 printk("%s(%d):mgslpc_close(%s) exit, count=%d\n", __FILE__,__LINE__,
29570 - tty->driver->name, port->count);
29571 + tty->driver->name, atomic_read(&port->count));
29572 }
29573
29574 /* Wait until the transmitter is empty.
29575 @@ -2502,7 +2502,7 @@ static int mgslpc_open(struct tty_struct *tty, struct file * filp)
29576
29577 if (debug_level >= DEBUG_LEVEL_INFO)
29578 printk("%s(%d):mgslpc_open(%s), old ref count = %d\n",
29579 - __FILE__,__LINE__,tty->driver->name, port->count);
29580 + __FILE__,__LINE__,tty->driver->name, atomic_read(&port->count));
29581
29582 /* If port is closing, signal caller to try again */
29583 if (tty_hung_up_p(filp) || port->flags & ASYNC_CLOSING){
29584 @@ -2522,11 +2522,11 @@ static int mgslpc_open(struct tty_struct *tty, struct file * filp)
29585 goto cleanup;
29586 }
29587 spin_lock(&port->lock);
29588 - port->count++;
29589 + atomic_inc(&port->count);
29590 spin_unlock(&port->lock);
29591 spin_unlock_irqrestore(&info->netlock, flags);
29592
29593 - if (port->count == 1) {
29594 + if (atomic_read(&port->count) == 1) {
29595 /* 1st open on this device, init hardware */
29596 retval = startup(info, tty);
29597 if (retval < 0)
29598 @@ -3891,7 +3891,7 @@ static int hdlcdev_attach(struct net_device *dev, unsigned short encoding,
29599 unsigned short new_crctype;
29600
29601 /* return error if TTY interface open */
29602 - if (info->port.count)
29603 + if (atomic_read(&info->port.count))
29604 return -EBUSY;
29605
29606 switch (encoding)
29607 @@ -3994,7 +3994,7 @@ static int hdlcdev_open(struct net_device *dev)
29608
29609 /* arbitrate between network and tty opens */
29610 spin_lock_irqsave(&info->netlock, flags);
29611 - if (info->port.count != 0 || info->netcount != 0) {
29612 + if (atomic_read(&info->port.count) != 0 || info->netcount != 0) {
29613 printk(KERN_WARNING "%s: hdlc_open returning busy\n", dev->name);
29614 spin_unlock_irqrestore(&info->netlock, flags);
29615 return -EBUSY;
29616 @@ -4083,7 +4083,7 @@ static int hdlcdev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
29617 printk("%s:hdlcdev_ioctl(%s)\n",__FILE__,dev->name);
29618
29619 /* return error if TTY interface open */
29620 - if (info->port.count)
29621 + if (atomic_read(&info->port.count))
29622 return -EBUSY;
29623
29624 if (cmd != SIOCWANDEV)
29625 diff --git a/drivers/char/random.c b/drivers/char/random.c
29626 index d98b2a6..f0ceb97 100644
29627 --- a/drivers/char/random.c
29628 +++ b/drivers/char/random.c
29629 @@ -272,8 +272,13 @@
29630 /*
29631 * Configuration information
29632 */
29633 +#ifdef CONFIG_GRKERNSEC_RANDNET
29634 +#define INPUT_POOL_WORDS 512
29635 +#define OUTPUT_POOL_WORDS 128
29636 +#else
29637 #define INPUT_POOL_WORDS 128
29638 #define OUTPUT_POOL_WORDS 32
29639 +#endif
29640 #define SEC_XFER_SIZE 512
29641 #define EXTRACT_SIZE 10
29642
29643 @@ -313,10 +318,17 @@ static struct poolinfo {
29644 int poolwords;
29645 int tap1, tap2, tap3, tap4, tap5;
29646 } poolinfo_table[] = {
29647 +#ifdef CONFIG_GRKERNSEC_RANDNET
29648 + /* x^512 + x^411 + x^308 + x^208 +x^104 + x + 1 -- 225 */
29649 + { 512, 411, 308, 208, 104, 1 },
29650 + /* x^128 + x^103 + x^76 + x^51 + x^25 + x + 1 -- 105 */
29651 + { 128, 103, 76, 51, 25, 1 },
29652 +#else
29653 /* x^128 + x^103 + x^76 + x^51 +x^25 + x + 1 -- 105 */
29654 { 128, 103, 76, 51, 25, 1 },
29655 /* x^32 + x^26 + x^20 + x^14 + x^7 + x + 1 -- 15 */
29656 { 32, 26, 20, 14, 7, 1 },
29657 +#endif
29658 #if 0
29659 /* x^2048 + x^1638 + x^1231 + x^819 + x^411 + x + 1 -- 115 */
29660 { 2048, 1638, 1231, 819, 411, 1 },
29661 @@ -527,8 +539,8 @@ static void _mix_pool_bytes(struct entropy_store *r, const void *in,
29662 input_rotate += i ? 7 : 14;
29663 }
29664
29665 - ACCESS_ONCE(r->input_rotate) = input_rotate;
29666 - ACCESS_ONCE(r->add_ptr) = i;
29667 + ACCESS_ONCE_RW(r->input_rotate) = input_rotate;
29668 + ACCESS_ONCE_RW(r->add_ptr) = i;
29669 smp_wmb();
29670
29671 if (out)
29672 @@ -799,6 +811,17 @@ void add_disk_randomness(struct gendisk *disk)
29673 }
29674 #endif
29675
29676 +#ifdef CONFIG_PAX_LATENT_ENTROPY
29677 +u64 latent_entropy;
29678 +
29679 +__init void transfer_latent_entropy(void)
29680 +{
29681 + mix_pool_bytes(&input_pool, &latent_entropy, sizeof(latent_entropy), NULL);
29682 + mix_pool_bytes(&nonblocking_pool, &latent_entropy, sizeof(latent_entropy), NULL);
29683 +// printk(KERN_INFO "PAX: transferring latent entropy: %16llx\n", latent_entropy);
29684 +}
29685 +#endif
29686 +
29687 /*********************************************************************
29688 *
29689 * Entropy extraction routines
29690 @@ -1008,7 +1031,7 @@ static ssize_t extract_entropy_user(struct entropy_store *r, void __user *buf,
29691
29692 extract_buf(r, tmp);
29693 i = min_t(int, nbytes, EXTRACT_SIZE);
29694 - if (copy_to_user(buf, tmp, i)) {
29695 + if (i > sizeof(tmp) || copy_to_user(buf, tmp, i)) {
29696 ret = -EFAULT;
29697 break;
29698 }
29699 @@ -1342,7 +1365,7 @@ EXPORT_SYMBOL(generate_random_uuid);
29700 #include <linux/sysctl.h>
29701
29702 static int min_read_thresh = 8, min_write_thresh;
29703 -static int max_read_thresh = INPUT_POOL_WORDS * 32;
29704 +static int max_read_thresh = OUTPUT_POOL_WORDS * 32;
29705 static int max_write_thresh = INPUT_POOL_WORDS * 32;
29706 static char sysctl_bootid[16];
29707
29708 diff --git a/drivers/char/sonypi.c b/drivers/char/sonypi.c
29709 index 45713f0..8286d21 100644
29710 --- a/drivers/char/sonypi.c
29711 +++ b/drivers/char/sonypi.c
29712 @@ -54,6 +54,7 @@
29713
29714 #include <asm/uaccess.h>
29715 #include <asm/io.h>
29716 +#include <asm/local.h>
29717
29718 #include <linux/sonypi.h>
29719
29720 @@ -490,7 +491,7 @@ static struct sonypi_device {
29721 spinlock_t fifo_lock;
29722 wait_queue_head_t fifo_proc_list;
29723 struct fasync_struct *fifo_async;
29724 - int open_count;
29725 + local_t open_count;
29726 int model;
29727 struct input_dev *input_jog_dev;
29728 struct input_dev *input_key_dev;
29729 @@ -897,7 +898,7 @@ static int sonypi_misc_fasync(int fd, struct file *filp, int on)
29730 static int sonypi_misc_release(struct inode *inode, struct file *file)
29731 {
29732 mutex_lock(&sonypi_device.lock);
29733 - sonypi_device.open_count--;
29734 + local_dec(&sonypi_device.open_count);
29735 mutex_unlock(&sonypi_device.lock);
29736 return 0;
29737 }
29738 @@ -906,9 +907,9 @@ static int sonypi_misc_open(struct inode *inode, struct file *file)
29739 {
29740 mutex_lock(&sonypi_device.lock);
29741 /* Flush input queue on first open */
29742 - if (!sonypi_device.open_count)
29743 + if (!local_read(&sonypi_device.open_count))
29744 kfifo_reset(&sonypi_device.fifo);
29745 - sonypi_device.open_count++;
29746 + local_inc(&sonypi_device.open_count);
29747 mutex_unlock(&sonypi_device.lock);
29748
29749 return 0;
29750 diff --git a/drivers/char/tpm/tpm.c b/drivers/char/tpm/tpm.c
29751 index 08427ab..1ab10b7 100644
29752 --- a/drivers/char/tpm/tpm.c
29753 +++ b/drivers/char/tpm/tpm.c
29754 @@ -415,7 +415,7 @@ static ssize_t tpm_transmit(struct tpm_chip *chip, const char *buf,
29755 chip->vendor.req_complete_val)
29756 goto out_recv;
29757
29758 - if ((status == chip->vendor.req_canceled)) {
29759 + if (status == chip->vendor.req_canceled) {
29760 dev_err(chip->dev, "Operation Canceled\n");
29761 rc = -ECANCELED;
29762 goto out;
29763 diff --git a/drivers/char/tpm/tpm_bios.c b/drivers/char/tpm/tpm_bios.c
29764 index 0636520..169c1d0 100644
29765 --- a/drivers/char/tpm/tpm_bios.c
29766 +++ b/drivers/char/tpm/tpm_bios.c
29767 @@ -173,7 +173,7 @@ static void *tpm_bios_measurements_start(struct seq_file *m, loff_t *pos)
29768 event = addr;
29769
29770 if ((event->event_type == 0 && event->event_size == 0) ||
29771 - ((addr + sizeof(struct tcpa_event) + event->event_size) >= limit))
29772 + (event->event_size >= limit - addr - sizeof(struct tcpa_event)))
29773 return NULL;
29774
29775 return addr;
29776 @@ -198,7 +198,7 @@ static void *tpm_bios_measurements_next(struct seq_file *m, void *v,
29777 return NULL;
29778
29779 if ((event->event_type == 0 && event->event_size == 0) ||
29780 - ((v + sizeof(struct tcpa_event) + event->event_size) >= limit))
29781 + (event->event_size >= limit - v - sizeof(struct tcpa_event)))
29782 return NULL;
29783
29784 (*pos)++;
29785 @@ -291,7 +291,8 @@ static int tpm_binary_bios_measurements_show(struct seq_file *m, void *v)
29786 int i;
29787
29788 for (i = 0; i < sizeof(struct tcpa_event) + event->event_size; i++)
29789 - seq_putc(m, data[i]);
29790 + if (!seq_putc(m, data[i]))
29791 + return -EFAULT;
29792
29793 return 0;
29794 }
29795 @@ -410,8 +411,13 @@ static int read_log(struct tpm_bios_log *log)
29796 log->bios_event_log_end = log->bios_event_log + len;
29797
29798 virt = acpi_os_map_memory(start, len);
29799 + if (!virt) {
29800 + kfree(log->bios_event_log);
29801 + log->bios_event_log = NULL;
29802 + return -EFAULT;
29803 + }
29804
29805 - memcpy(log->bios_event_log, virt, len);
29806 + memcpy(log->bios_event_log, (const char __force_kernel *)virt, len);
29807
29808 acpi_os_unmap_memory(virt, len);
29809 return 0;
29810 diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c
29811 index cdf2f54..e55c197 100644
29812 --- a/drivers/char/virtio_console.c
29813 +++ b/drivers/char/virtio_console.c
29814 @@ -563,7 +563,7 @@ static ssize_t fill_readbuf(struct port *port, char *out_buf, size_t out_count,
29815 if (to_user) {
29816 ssize_t ret;
29817
29818 - ret = copy_to_user(out_buf, buf->buf + buf->offset, out_count);
29819 + ret = copy_to_user((char __force_user *)out_buf, buf->buf + buf->offset, out_count);
29820 if (ret)
29821 return -EFAULT;
29822 } else {
29823 @@ -662,7 +662,7 @@ static ssize_t port_fops_read(struct file *filp, char __user *ubuf,
29824 if (!port_has_data(port) && !port->host_connected)
29825 return 0;
29826
29827 - return fill_readbuf(port, ubuf, count, true);
29828 + return fill_readbuf(port, (char __force_kernel *)ubuf, count, true);
29829 }
29830
29831 static ssize_t port_fops_write(struct file *filp, const char __user *ubuf,
29832 diff --git a/drivers/edac/edac_pci_sysfs.c b/drivers/edac/edac_pci_sysfs.c
29833 index 97f5064..202b6e6 100644
29834 --- a/drivers/edac/edac_pci_sysfs.c
29835 +++ b/drivers/edac/edac_pci_sysfs.c
29836 @@ -26,8 +26,8 @@ static int edac_pci_log_pe = 1; /* log PCI parity errors */
29837 static int edac_pci_log_npe = 1; /* log PCI non-parity error errors */
29838 static int edac_pci_poll_msec = 1000; /* one second workq period */
29839
29840 -static atomic_t pci_parity_count = ATOMIC_INIT(0);
29841 -static atomic_t pci_nonparity_count = ATOMIC_INIT(0);
29842 +static atomic_unchecked_t pci_parity_count = ATOMIC_INIT(0);
29843 +static atomic_unchecked_t pci_nonparity_count = ATOMIC_INIT(0);
29844
29845 static struct kobject *edac_pci_top_main_kobj;
29846 static atomic_t edac_pci_sysfs_refcount = ATOMIC_INIT(0);
29847 @@ -582,7 +582,7 @@ static void edac_pci_dev_parity_test(struct pci_dev *dev)
29848 edac_printk(KERN_CRIT, EDAC_PCI,
29849 "Signaled System Error on %s\n",
29850 pci_name(dev));
29851 - atomic_inc(&pci_nonparity_count);
29852 + atomic_inc_unchecked(&pci_nonparity_count);
29853 }
29854
29855 if (status & (PCI_STATUS_PARITY)) {
29856 @@ -590,7 +590,7 @@ static void edac_pci_dev_parity_test(struct pci_dev *dev)
29857 "Master Data Parity Error on %s\n",
29858 pci_name(dev));
29859
29860 - atomic_inc(&pci_parity_count);
29861 + atomic_inc_unchecked(&pci_parity_count);
29862 }
29863
29864 if (status & (PCI_STATUS_DETECTED_PARITY)) {
29865 @@ -598,7 +598,7 @@ static void edac_pci_dev_parity_test(struct pci_dev *dev)
29866 "Detected Parity Error on %s\n",
29867 pci_name(dev));
29868
29869 - atomic_inc(&pci_parity_count);
29870 + atomic_inc_unchecked(&pci_parity_count);
29871 }
29872 }
29873
29874 @@ -619,7 +619,7 @@ static void edac_pci_dev_parity_test(struct pci_dev *dev)
29875 edac_printk(KERN_CRIT, EDAC_PCI, "Bridge "
29876 "Signaled System Error on %s\n",
29877 pci_name(dev));
29878 - atomic_inc(&pci_nonparity_count);
29879 + atomic_inc_unchecked(&pci_nonparity_count);
29880 }
29881
29882 if (status & (PCI_STATUS_PARITY)) {
29883 @@ -627,7 +627,7 @@ static void edac_pci_dev_parity_test(struct pci_dev *dev)
29884 "Master Data Parity Error on "
29885 "%s\n", pci_name(dev));
29886
29887 - atomic_inc(&pci_parity_count);
29888 + atomic_inc_unchecked(&pci_parity_count);
29889 }
29890
29891 if (status & (PCI_STATUS_DETECTED_PARITY)) {
29892 @@ -635,7 +635,7 @@ static void edac_pci_dev_parity_test(struct pci_dev *dev)
29893 "Detected Parity Error on %s\n",
29894 pci_name(dev));
29895
29896 - atomic_inc(&pci_parity_count);
29897 + atomic_inc_unchecked(&pci_parity_count);
29898 }
29899 }
29900 }
29901 @@ -677,7 +677,7 @@ void edac_pci_do_parity_check(void)
29902 if (!check_pci_errors)
29903 return;
29904
29905 - before_count = atomic_read(&pci_parity_count);
29906 + before_count = atomic_read_unchecked(&pci_parity_count);
29907
29908 /* scan all PCI devices looking for a Parity Error on devices and
29909 * bridges.
29910 @@ -689,7 +689,7 @@ void edac_pci_do_parity_check(void)
29911 /* Only if operator has selected panic on PCI Error */
29912 if (edac_pci_get_panic_on_pe()) {
29913 /* If the count is different 'after' from 'before' */
29914 - if (before_count != atomic_read(&pci_parity_count))
29915 + if (before_count != atomic_read_unchecked(&pci_parity_count))
29916 panic("EDAC: PCI Parity Error");
29917 }
29918 }
29919 diff --git a/drivers/edac/mce_amd.h b/drivers/edac/mce_amd.h
29920 index 8c87a5e..a19cbd7 100644
29921 --- a/drivers/edac/mce_amd.h
29922 +++ b/drivers/edac/mce_amd.h
29923 @@ -80,7 +80,7 @@ extern const char * const ii_msgs[];
29924 struct amd_decoder_ops {
29925 bool (*dc_mce)(u16, u8);
29926 bool (*ic_mce)(u16, u8);
29927 -};
29928 +} __no_const;
29929
29930 void amd_report_gart_errors(bool);
29931 void amd_register_ecc_decoder(void (*f)(int, struct mce *));
29932 diff --git a/drivers/firewire/core-card.c b/drivers/firewire/core-card.c
29933 index 57ea7f4..789e3c3 100644
29934 --- a/drivers/firewire/core-card.c
29935 +++ b/drivers/firewire/core-card.c
29936 @@ -680,7 +680,7 @@ EXPORT_SYMBOL_GPL(fw_card_release);
29937
29938 void fw_core_remove_card(struct fw_card *card)
29939 {
29940 - struct fw_card_driver dummy_driver = dummy_driver_template;
29941 + fw_card_driver_no_const dummy_driver = dummy_driver_template;
29942
29943 card->driver->update_phy_reg(card, 4,
29944 PHY_LINK_ACTIVE | PHY_CONTENDER, 0);
29945 diff --git a/drivers/firewire/core-cdev.c b/drivers/firewire/core-cdev.c
29946 index 2783f69..9f4b0cc 100644
29947 --- a/drivers/firewire/core-cdev.c
29948 +++ b/drivers/firewire/core-cdev.c
29949 @@ -1365,8 +1365,7 @@ static int init_iso_resource(struct client *client,
29950 int ret;
29951
29952 if ((request->channels == 0 && request->bandwidth == 0) ||
29953 - request->bandwidth > BANDWIDTH_AVAILABLE_INITIAL ||
29954 - request->bandwidth < 0)
29955 + request->bandwidth > BANDWIDTH_AVAILABLE_INITIAL)
29956 return -EINVAL;
29957
29958 r = kmalloc(sizeof(*r), GFP_KERNEL);
29959 diff --git a/drivers/firewire/core-transaction.c b/drivers/firewire/core-transaction.c
29960 index 780708d..ad60a66 100644
29961 --- a/drivers/firewire/core-transaction.c
29962 +++ b/drivers/firewire/core-transaction.c
29963 @@ -37,6 +37,7 @@
29964 #include <linux/timer.h>
29965 #include <linux/types.h>
29966 #include <linux/workqueue.h>
29967 +#include <linux/sched.h>
29968
29969 #include <asm/byteorder.h>
29970
29971 diff --git a/drivers/firewire/core.h b/drivers/firewire/core.h
29972 index 515a42c..5ecf3ba 100644
29973 --- a/drivers/firewire/core.h
29974 +++ b/drivers/firewire/core.h
29975 @@ -111,6 +111,7 @@ struct fw_card_driver {
29976
29977 int (*stop_iso)(struct fw_iso_context *ctx);
29978 };
29979 +typedef struct fw_card_driver __no_const fw_card_driver_no_const;
29980
29981 void fw_card_initialize(struct fw_card *card,
29982 const struct fw_card_driver *driver, struct device *device);
29983 diff --git a/drivers/firmware/dmi_scan.c b/drivers/firmware/dmi_scan.c
29984 index b298158..7ed8432 100644
29985 --- a/drivers/firmware/dmi_scan.c
29986 +++ b/drivers/firmware/dmi_scan.c
29987 @@ -452,11 +452,6 @@ void __init dmi_scan_machine(void)
29988 }
29989 }
29990 else {
29991 - /*
29992 - * no iounmap() for that ioremap(); it would be a no-op, but
29993 - * it's so early in setup that sucker gets confused into doing
29994 - * what it shouldn't if we actually call it.
29995 - */
29996 p = dmi_ioremap(0xF0000, 0x10000);
29997 if (p == NULL)
29998 goto error;
29999 @@ -726,7 +721,7 @@ int dmi_walk(void (*decode)(const struct dmi_header *, void *),
30000 if (buf == NULL)
30001 return -1;
30002
30003 - dmi_table(buf, dmi_len, dmi_num, decode, private_data);
30004 + dmi_table((char __force_kernel *)buf, dmi_len, dmi_num, decode, private_data);
30005
30006 iounmap(buf);
30007 return 0;
30008 diff --git a/drivers/gpio/gpio-vr41xx.c b/drivers/gpio/gpio-vr41xx.c
30009 index 82d5c20..44a7177 100644
30010 --- a/drivers/gpio/gpio-vr41xx.c
30011 +++ b/drivers/gpio/gpio-vr41xx.c
30012 @@ -204,7 +204,7 @@ static int giu_get_irq(unsigned int irq)
30013 printk(KERN_ERR "spurious GIU interrupt: %04x(%04x),%04x(%04x)\n",
30014 maskl, pendl, maskh, pendh);
30015
30016 - atomic_inc(&irq_err_count);
30017 + atomic_inc_unchecked(&irq_err_count);
30018
30019 return -EINVAL;
30020 }
30021 diff --git a/drivers/gpu/drm/drm_crtc_helper.c b/drivers/gpu/drm/drm_crtc_helper.c
30022 index 3252e70..b5314ace 100644
30023 --- a/drivers/gpu/drm/drm_crtc_helper.c
30024 +++ b/drivers/gpu/drm/drm_crtc_helper.c
30025 @@ -286,7 +286,7 @@ static bool drm_encoder_crtc_ok(struct drm_encoder *encoder,
30026 struct drm_crtc *tmp;
30027 int crtc_mask = 1;
30028
30029 - WARN(!crtc, "checking null crtc?\n");
30030 + BUG_ON(!crtc);
30031
30032 dev = crtc->dev;
30033
30034 diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c
30035 index 8a9d079..606cdd5 100644
30036 --- a/drivers/gpu/drm/drm_drv.c
30037 +++ b/drivers/gpu/drm/drm_drv.c
30038 @@ -318,7 +318,7 @@ module_exit(drm_core_exit);
30039 /**
30040 * Copy and IOCTL return string to user space
30041 */
30042 -static int drm_copy_field(char *buf, size_t *buf_len, const char *value)
30043 +static int drm_copy_field(char __user *buf, size_t *buf_len, const char *value)
30044 {
30045 int len;
30046
30047 @@ -401,7 +401,7 @@ long drm_ioctl(struct file *filp,
30048 return -ENODEV;
30049
30050 atomic_inc(&dev->ioctl_count);
30051 - atomic_inc(&dev->counts[_DRM_STAT_IOCTLS]);
30052 + atomic_inc_unchecked(&dev->counts[_DRM_STAT_IOCTLS]);
30053 ++file_priv->ioctl_count;
30054
30055 DRM_DEBUG("pid=%d, cmd=0x%02x, nr=0x%02x, dev 0x%lx, auth=%d\n",
30056 diff --git a/drivers/gpu/drm/drm_fops.c b/drivers/gpu/drm/drm_fops.c
30057 index 123de28..43a0897 100644
30058 --- a/drivers/gpu/drm/drm_fops.c
30059 +++ b/drivers/gpu/drm/drm_fops.c
30060 @@ -71,7 +71,7 @@ static int drm_setup(struct drm_device * dev)
30061 }
30062
30063 for (i = 0; i < ARRAY_SIZE(dev->counts); i++)
30064 - atomic_set(&dev->counts[i], 0);
30065 + atomic_set_unchecked(&dev->counts[i], 0);
30066
30067 dev->sigdata.lock = NULL;
30068
30069 @@ -138,8 +138,8 @@ int drm_open(struct inode *inode, struct file *filp)
30070
30071 retcode = drm_open_helper(inode, filp, dev);
30072 if (!retcode) {
30073 - atomic_inc(&dev->counts[_DRM_STAT_OPENS]);
30074 - if (!dev->open_count++)
30075 + atomic_inc_unchecked(&dev->counts[_DRM_STAT_OPENS]);
30076 + if (local_inc_return(&dev->open_count) == 1)
30077 retcode = drm_setup(dev);
30078 }
30079 if (!retcode) {
30080 @@ -482,7 +482,7 @@ int drm_release(struct inode *inode, struct file *filp)
30081
30082 mutex_lock(&drm_global_mutex);
30083
30084 - DRM_DEBUG("open_count = %d\n", dev->open_count);
30085 + DRM_DEBUG("open_count = %ld\n", local_read(&dev->open_count));
30086
30087 if (dev->driver->preclose)
30088 dev->driver->preclose(dev, file_priv);
30089 @@ -491,10 +491,10 @@ int drm_release(struct inode *inode, struct file *filp)
30090 * Begin inline drm_release
30091 */
30092
30093 - DRM_DEBUG("pid = %d, device = 0x%lx, open_count = %d\n",
30094 + DRM_DEBUG("pid = %d, device = 0x%lx, open_count = %ld\n",
30095 task_pid_nr(current),
30096 (long)old_encode_dev(file_priv->minor->device),
30097 - dev->open_count);
30098 + local_read(&dev->open_count));
30099
30100 /* Release any auth tokens that might point to this file_priv,
30101 (do that under the drm_global_mutex) */
30102 @@ -584,8 +584,8 @@ int drm_release(struct inode *inode, struct file *filp)
30103 * End inline drm_release
30104 */
30105
30106 - atomic_inc(&dev->counts[_DRM_STAT_CLOSES]);
30107 - if (!--dev->open_count) {
30108 + atomic_inc_unchecked(&dev->counts[_DRM_STAT_CLOSES]);
30109 + if (local_dec_and_test(&dev->open_count)) {
30110 if (atomic_read(&dev->ioctl_count)) {
30111 DRM_ERROR("Device busy: %d\n",
30112 atomic_read(&dev->ioctl_count));
30113 diff --git a/drivers/gpu/drm/drm_global.c b/drivers/gpu/drm/drm_global.c
30114 index c87dc96..326055d 100644
30115 --- a/drivers/gpu/drm/drm_global.c
30116 +++ b/drivers/gpu/drm/drm_global.c
30117 @@ -36,7 +36,7 @@
30118 struct drm_global_item {
30119 struct mutex mutex;
30120 void *object;
30121 - int refcount;
30122 + atomic_t refcount;
30123 };
30124
30125 static struct drm_global_item glob[DRM_GLOBAL_NUM];
30126 @@ -49,7 +49,7 @@ void drm_global_init(void)
30127 struct drm_global_item *item = &glob[i];
30128 mutex_init(&item->mutex);
30129 item->object = NULL;
30130 - item->refcount = 0;
30131 + atomic_set(&item->refcount, 0);
30132 }
30133 }
30134
30135 @@ -59,7 +59,7 @@ void drm_global_release(void)
30136 for (i = 0; i < DRM_GLOBAL_NUM; ++i) {
30137 struct drm_global_item *item = &glob[i];
30138 BUG_ON(item->object != NULL);
30139 - BUG_ON(item->refcount != 0);
30140 + BUG_ON(atomic_read(&item->refcount) != 0);
30141 }
30142 }
30143
30144 @@ -70,7 +70,7 @@ int drm_global_item_ref(struct drm_global_reference *ref)
30145 void *object;
30146
30147 mutex_lock(&item->mutex);
30148 - if (item->refcount == 0) {
30149 + if (atomic_read(&item->refcount) == 0) {
30150 item->object = kzalloc(ref->size, GFP_KERNEL);
30151 if (unlikely(item->object == NULL)) {
30152 ret = -ENOMEM;
30153 @@ -83,7 +83,7 @@ int drm_global_item_ref(struct drm_global_reference *ref)
30154 goto out_err;
30155
30156 }
30157 - ++item->refcount;
30158 + atomic_inc(&item->refcount);
30159 ref->object = item->object;
30160 object = item->object;
30161 mutex_unlock(&item->mutex);
30162 @@ -100,9 +100,9 @@ void drm_global_item_unref(struct drm_global_reference *ref)
30163 struct drm_global_item *item = &glob[ref->global_type];
30164
30165 mutex_lock(&item->mutex);
30166 - BUG_ON(item->refcount == 0);
30167 + BUG_ON(atomic_read(&item->refcount) == 0);
30168 BUG_ON(ref->object != item->object);
30169 - if (--item->refcount == 0) {
30170 + if (atomic_dec_and_test(&item->refcount)) {
30171 ref->release(ref);
30172 item->object = NULL;
30173 }
30174 diff --git a/drivers/gpu/drm/drm_info.c b/drivers/gpu/drm/drm_info.c
30175 index ab1162d..42587b2 100644
30176 --- a/drivers/gpu/drm/drm_info.c
30177 +++ b/drivers/gpu/drm/drm_info.c
30178 @@ -75,10 +75,14 @@ int drm_vm_info(struct seq_file *m, void *data)
30179 struct drm_local_map *map;
30180 struct drm_map_list *r_list;
30181
30182 - /* Hardcoded from _DRM_FRAME_BUFFER,
30183 - _DRM_REGISTERS, _DRM_SHM, _DRM_AGP, and
30184 - _DRM_SCATTER_GATHER and _DRM_CONSISTENT */
30185 - const char *types[] = { "FB", "REG", "SHM", "AGP", "SG", "PCI" };
30186 + static const char * const types[] = {
30187 + [_DRM_FRAME_BUFFER] = "FB",
30188 + [_DRM_REGISTERS] = "REG",
30189 + [_DRM_SHM] = "SHM",
30190 + [_DRM_AGP] = "AGP",
30191 + [_DRM_SCATTER_GATHER] = "SG",
30192 + [_DRM_CONSISTENT] = "PCI",
30193 + [_DRM_GEM] = "GEM" };
30194 const char *type;
30195 int i;
30196
30197 @@ -89,7 +93,7 @@ int drm_vm_info(struct seq_file *m, void *data)
30198 map = r_list->map;
30199 if (!map)
30200 continue;
30201 - if (map->type < 0 || map->type > 5)
30202 + if (map->type >= ARRAY_SIZE(types))
30203 type = "??";
30204 else
30205 type = types[map->type];
30206 @@ -290,7 +294,11 @@ int drm_vma_info(struct seq_file *m, void *data)
30207 vma->vm_flags & VM_MAYSHARE ? 's' : 'p',
30208 vma->vm_flags & VM_LOCKED ? 'l' : '-',
30209 vma->vm_flags & VM_IO ? 'i' : '-',
30210 +#ifdef CONFIG_GRKERNSEC_HIDESYM
30211 + 0);
30212 +#else
30213 vma->vm_pgoff);
30214 +#endif
30215
30216 #if defined(__i386__)
30217 pgprot = pgprot_val(vma->vm_page_prot);
30218 diff --git a/drivers/gpu/drm/drm_ioc32.c b/drivers/gpu/drm/drm_ioc32.c
30219 index 637fcc3..e890b33 100644
30220 --- a/drivers/gpu/drm/drm_ioc32.c
30221 +++ b/drivers/gpu/drm/drm_ioc32.c
30222 @@ -457,7 +457,7 @@ static int compat_drm_infobufs(struct file *file, unsigned int cmd,
30223 request = compat_alloc_user_space(nbytes);
30224 if (!access_ok(VERIFY_WRITE, request, nbytes))
30225 return -EFAULT;
30226 - list = (struct drm_buf_desc *) (request + 1);
30227 + list = (struct drm_buf_desc __user *) (request + 1);
30228
30229 if (__put_user(count, &request->count)
30230 || __put_user(list, &request->list))
30231 @@ -518,7 +518,7 @@ static int compat_drm_mapbufs(struct file *file, unsigned int cmd,
30232 request = compat_alloc_user_space(nbytes);
30233 if (!access_ok(VERIFY_WRITE, request, nbytes))
30234 return -EFAULT;
30235 - list = (struct drm_buf_pub *) (request + 1);
30236 + list = (struct drm_buf_pub __user *) (request + 1);
30237
30238 if (__put_user(count, &request->count)
30239 || __put_user(list, &request->list))
30240 diff --git a/drivers/gpu/drm/drm_ioctl.c b/drivers/gpu/drm/drm_ioctl.c
30241 index 64a62c6..ceab35e 100644
30242 --- a/drivers/gpu/drm/drm_ioctl.c
30243 +++ b/drivers/gpu/drm/drm_ioctl.c
30244 @@ -252,7 +252,7 @@ int drm_getstats(struct drm_device *dev, void *data,
30245 stats->data[i].value =
30246 (file_priv->master->lock.hw_lock ? file_priv->master->lock.hw_lock->lock : 0);
30247 else
30248 - stats->data[i].value = atomic_read(&dev->counts[i]);
30249 + stats->data[i].value = atomic_read_unchecked(&dev->counts[i]);
30250 stats->data[i].type = dev->types[i];
30251 }
30252
30253 diff --git a/drivers/gpu/drm/drm_lock.c b/drivers/gpu/drm/drm_lock.c
30254 index 5211520..c744d85 100644
30255 --- a/drivers/gpu/drm/drm_lock.c
30256 +++ b/drivers/gpu/drm/drm_lock.c
30257 @@ -90,7 +90,7 @@ int drm_lock(struct drm_device *dev, void *data, struct drm_file *file_priv)
30258 if (drm_lock_take(&master->lock, lock->context)) {
30259 master->lock.file_priv = file_priv;
30260 master->lock.lock_time = jiffies;
30261 - atomic_inc(&dev->counts[_DRM_STAT_LOCKS]);
30262 + atomic_inc_unchecked(&dev->counts[_DRM_STAT_LOCKS]);
30263 break; /* Got lock */
30264 }
30265
30266 @@ -161,7 +161,7 @@ int drm_unlock(struct drm_device *dev, void *data, struct drm_file *file_priv)
30267 return -EINVAL;
30268 }
30269
30270 - atomic_inc(&dev->counts[_DRM_STAT_UNLOCKS]);
30271 + atomic_inc_unchecked(&dev->counts[_DRM_STAT_UNLOCKS]);
30272
30273 if (drm_lock_free(&master->lock, lock->context)) {
30274 /* FIXME: Should really bail out here. */
30275 diff --git a/drivers/gpu/drm/drm_stub.c b/drivers/gpu/drm/drm_stub.c
30276 index 21bcd4a..8e074e0 100644
30277 --- a/drivers/gpu/drm/drm_stub.c
30278 +++ b/drivers/gpu/drm/drm_stub.c
30279 @@ -511,7 +511,7 @@ void drm_unplug_dev(struct drm_device *dev)
30280
30281 drm_device_set_unplugged(dev);
30282
30283 - if (dev->open_count == 0) {
30284 + if (local_read(&dev->open_count) == 0) {
30285 drm_put_dev(dev);
30286 }
30287 mutex_unlock(&drm_global_mutex);
30288 diff --git a/drivers/gpu/drm/i810/i810_dma.c b/drivers/gpu/drm/i810/i810_dma.c
30289 index fa94391..ed26ec8 100644
30290 --- a/drivers/gpu/drm/i810/i810_dma.c
30291 +++ b/drivers/gpu/drm/i810/i810_dma.c
30292 @@ -943,8 +943,8 @@ static int i810_dma_vertex(struct drm_device *dev, void *data,
30293 dma->buflist[vertex->idx],
30294 vertex->discard, vertex->used);
30295
30296 - atomic_add(vertex->used, &dev->counts[_DRM_STAT_SECONDARY]);
30297 - atomic_inc(&dev->counts[_DRM_STAT_DMA]);
30298 + atomic_add_unchecked(vertex->used, &dev->counts[_DRM_STAT_SECONDARY]);
30299 + atomic_inc_unchecked(&dev->counts[_DRM_STAT_DMA]);
30300 sarea_priv->last_enqueue = dev_priv->counter - 1;
30301 sarea_priv->last_dispatch = (int)hw_status[5];
30302
30303 @@ -1104,8 +1104,8 @@ static int i810_dma_mc(struct drm_device *dev, void *data,
30304 i810_dma_dispatch_mc(dev, dma->buflist[mc->idx], mc->used,
30305 mc->last_render);
30306
30307 - atomic_add(mc->used, &dev->counts[_DRM_STAT_SECONDARY]);
30308 - atomic_inc(&dev->counts[_DRM_STAT_DMA]);
30309 + atomic_add_unchecked(mc->used, &dev->counts[_DRM_STAT_SECONDARY]);
30310 + atomic_inc_unchecked(&dev->counts[_DRM_STAT_DMA]);
30311 sarea_priv->last_enqueue = dev_priv->counter - 1;
30312 sarea_priv->last_dispatch = (int)hw_status[5];
30313
30314 diff --git a/drivers/gpu/drm/i810/i810_drv.h b/drivers/gpu/drm/i810/i810_drv.h
30315 index c9339f4..f5e1b9d 100644
30316 --- a/drivers/gpu/drm/i810/i810_drv.h
30317 +++ b/drivers/gpu/drm/i810/i810_drv.h
30318 @@ -108,8 +108,8 @@ typedef struct drm_i810_private {
30319 int page_flipping;
30320
30321 wait_queue_head_t irq_queue;
30322 - atomic_t irq_received;
30323 - atomic_t irq_emitted;
30324 + atomic_unchecked_t irq_received;
30325 + atomic_unchecked_t irq_emitted;
30326
30327 int front_offset;
30328 } drm_i810_private_t;
30329 diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
30330 index 5363e9c..59360d1 100644
30331 --- a/drivers/gpu/drm/i915/i915_debugfs.c
30332 +++ b/drivers/gpu/drm/i915/i915_debugfs.c
30333 @@ -518,7 +518,7 @@ static int i915_interrupt_info(struct seq_file *m, void *data)
30334 I915_READ(GTIMR));
30335 }
30336 seq_printf(m, "Interrupts received: %d\n",
30337 - atomic_read(&dev_priv->irq_received));
30338 + atomic_read_unchecked(&dev_priv->irq_received));
30339 for (i = 0; i < I915_NUM_RINGS; i++) {
30340 if (IS_GEN6(dev) || IS_GEN7(dev)) {
30341 seq_printf(m, "Graphics Interrupt mask (%s): %08x\n",
30342 diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
30343 index 36822b9..b725e1b 100644
30344 --- a/drivers/gpu/drm/i915/i915_dma.c
30345 +++ b/drivers/gpu/drm/i915/i915_dma.c
30346 @@ -1266,7 +1266,7 @@ static bool i915_switcheroo_can_switch(struct pci_dev *pdev)
30347 bool can_switch;
30348
30349 spin_lock(&dev->count_lock);
30350 - can_switch = (dev->open_count == 0);
30351 + can_switch = (local_read(&dev->open_count) == 0);
30352 spin_unlock(&dev->count_lock);
30353 return can_switch;
30354 }
30355 diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
30356 index b0b676a..d107105 100644
30357 --- a/drivers/gpu/drm/i915/i915_drv.h
30358 +++ b/drivers/gpu/drm/i915/i915_drv.h
30359 @@ -268,7 +268,7 @@ struct drm_i915_display_funcs {
30360 /* render clock increase/decrease */
30361 /* display clock increase/decrease */
30362 /* pll clock increase/decrease */
30363 -};
30364 +} __no_const;
30365
30366 struct intel_device_info {
30367 u8 gen;
30368 @@ -386,7 +386,7 @@ typedef struct drm_i915_private {
30369 int current_page;
30370 int page_flipping;
30371
30372 - atomic_t irq_received;
30373 + atomic_unchecked_t irq_received;
30374
30375 /* protects the irq masks */
30376 spinlock_t irq_lock;
30377 @@ -985,7 +985,7 @@ struct drm_i915_gem_object {
30378 * will be page flipped away on the next vblank. When it
30379 * reaches 0, dev_priv->pending_flip_queue will be woken up.
30380 */
30381 - atomic_t pending_flip;
30382 + atomic_unchecked_t pending_flip;
30383 };
30384
30385 #define to_intel_bo(x) container_of(x, struct drm_i915_gem_object, base)
30386 @@ -1434,7 +1434,7 @@ extern struct i2c_adapter *intel_gmbus_get_adapter(
30387 struct drm_i915_private *dev_priv, unsigned port);
30388 extern void intel_gmbus_set_speed(struct i2c_adapter *adapter, int speed);
30389 extern void intel_gmbus_force_bit(struct i2c_adapter *adapter, bool force_bit);
30390 -extern inline bool intel_gmbus_is_forced_bit(struct i2c_adapter *adapter)
30391 +static inline bool intel_gmbus_is_forced_bit(struct i2c_adapter *adapter)
30392 {
30393 return container_of(adapter, struct intel_gmbus, adapter)->force_bit;
30394 }
30395 diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
30396 index 974a9f1..b3ebd45 100644
30397 --- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c
30398 +++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
30399 @@ -189,7 +189,7 @@ i915_gem_object_set_to_gpu_domain(struct drm_i915_gem_object *obj,
30400 i915_gem_clflush_object(obj);
30401
30402 if (obj->base.pending_write_domain)
30403 - cd->flips |= atomic_read(&obj->pending_flip);
30404 + cd->flips |= atomic_read_unchecked(&obj->pending_flip);
30405
30406 /* The actual obj->write_domain will be updated with
30407 * pending_write_domain after we emit the accumulated flush for all
30408 @@ -916,9 +916,9 @@ i915_gem_check_execbuffer(struct drm_i915_gem_execbuffer2 *exec)
30409
30410 static int
30411 validate_exec_list(struct drm_i915_gem_exec_object2 *exec,
30412 - int count)
30413 + unsigned int count)
30414 {
30415 - int i;
30416 + unsigned int i;
30417
30418 for (i = 0; i < count; i++) {
30419 char __user *ptr = (char __user *)(uintptr_t)exec[i].relocs_ptr;
30420 diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
30421 index ed3224c..6618589 100644
30422 --- a/drivers/gpu/drm/i915/i915_irq.c
30423 +++ b/drivers/gpu/drm/i915/i915_irq.c
30424 @@ -433,7 +433,7 @@ static irqreturn_t valleyview_irq_handler(DRM_IRQ_ARGS)
30425 int vblank = 0;
30426 bool blc_event;
30427
30428 - atomic_inc(&dev_priv->irq_received);
30429 + atomic_inc_unchecked(&dev_priv->irq_received);
30430
30431 vblank_status = PIPE_START_VBLANK_INTERRUPT_STATUS |
30432 PIPE_VBLANK_INTERRUPT_STATUS;
30433 @@ -586,7 +586,7 @@ static irqreturn_t ivybridge_irq_handler(DRM_IRQ_ARGS)
30434 irqreturn_t ret = IRQ_NONE;
30435 int i;
30436
30437 - atomic_inc(&dev_priv->irq_received);
30438 + atomic_inc_unchecked(&dev_priv->irq_received);
30439
30440 /* disable master interrupt before clearing iir */
30441 de_ier = I915_READ(DEIER);
30442 @@ -661,7 +661,7 @@ static irqreturn_t ironlake_irq_handler(DRM_IRQ_ARGS)
30443 u32 de_iir, gt_iir, de_ier, pch_iir, pm_iir;
30444 u32 hotplug_mask;
30445
30446 - atomic_inc(&dev_priv->irq_received);
30447 + atomic_inc_unchecked(&dev_priv->irq_received);
30448
30449 /* disable master interrupt before clearing iir */
30450 de_ier = I915_READ(DEIER);
30451 @@ -1646,7 +1646,7 @@ static void ironlake_irq_preinstall(struct drm_device *dev)
30452 {
30453 drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
30454
30455 - atomic_set(&dev_priv->irq_received, 0);
30456 + atomic_set_unchecked(&dev_priv->irq_received, 0);
30457
30458
30459 I915_WRITE(HWSTAM, 0xeffe);
30460 @@ -1673,7 +1673,7 @@ static void valleyview_irq_preinstall(struct drm_device *dev)
30461 drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
30462 int pipe;
30463
30464 - atomic_set(&dev_priv->irq_received, 0);
30465 + atomic_set_unchecked(&dev_priv->irq_received, 0);
30466
30467 /* VLV magic */
30468 I915_WRITE(VLV_IMR, 0);
30469 @@ -1969,7 +1969,7 @@ static void i8xx_irq_preinstall(struct drm_device * dev)
30470 drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
30471 int pipe;
30472
30473 - atomic_set(&dev_priv->irq_received, 0);
30474 + atomic_set_unchecked(&dev_priv->irq_received, 0);
30475
30476 for_each_pipe(pipe)
30477 I915_WRITE(PIPESTAT(pipe), 0);
30478 @@ -2020,7 +2020,7 @@ static irqreturn_t i8xx_irq_handler(DRM_IRQ_ARGS)
30479 I915_DISPLAY_PLANE_A_FLIP_PENDING_INTERRUPT |
30480 I915_DISPLAY_PLANE_B_FLIP_PENDING_INTERRUPT;
30481
30482 - atomic_inc(&dev_priv->irq_received);
30483 + atomic_inc_unchecked(&dev_priv->irq_received);
30484
30485 iir = I915_READ16(IIR);
30486 if (iir == 0)
30487 @@ -2105,7 +2105,7 @@ static void i915_irq_preinstall(struct drm_device * dev)
30488 drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
30489 int pipe;
30490
30491 - atomic_set(&dev_priv->irq_received, 0);
30492 + atomic_set_unchecked(&dev_priv->irq_received, 0);
30493
30494 if (I915_HAS_HOTPLUG(dev)) {
30495 I915_WRITE(PORT_HOTPLUG_EN, 0);
30496 @@ -2200,7 +2200,7 @@ static irqreturn_t i915_irq_handler(DRM_IRQ_ARGS)
30497 };
30498 int pipe, ret = IRQ_NONE;
30499
30500 - atomic_inc(&dev_priv->irq_received);
30501 + atomic_inc_unchecked(&dev_priv->irq_received);
30502
30503 iir = I915_READ(IIR);
30504 do {
30505 @@ -2326,7 +2326,7 @@ static void i965_irq_preinstall(struct drm_device * dev)
30506 drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
30507 int pipe;
30508
30509 - atomic_set(&dev_priv->irq_received, 0);
30510 + atomic_set_unchecked(&dev_priv->irq_received, 0);
30511
30512 if (I915_HAS_HOTPLUG(dev)) {
30513 I915_WRITE(PORT_HOTPLUG_EN, 0);
30514 @@ -2436,7 +2436,7 @@ static irqreturn_t i965_irq_handler(DRM_IRQ_ARGS)
30515 int irq_received;
30516 int ret = IRQ_NONE, pipe;
30517
30518 - atomic_inc(&dev_priv->irq_received);
30519 + atomic_inc_unchecked(&dev_priv->irq_received);
30520
30521 iir = I915_READ(IIR);
30522
30523 diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
30524 index a8538ac..4868a05 100644
30525 --- a/drivers/gpu/drm/i915/intel_display.c
30526 +++ b/drivers/gpu/drm/i915/intel_display.c
30527 @@ -2000,7 +2000,7 @@ intel_finish_fb(struct drm_framebuffer *old_fb)
30528
30529 wait_event(dev_priv->pending_flip_queue,
30530 atomic_read(&dev_priv->mm.wedged) ||
30531 - atomic_read(&obj->pending_flip) == 0);
30532 + atomic_read_unchecked(&obj->pending_flip) == 0);
30533
30534 /* Big Hammer, we also need to ensure that any pending
30535 * MI_WAIT_FOR_EVENT inside a user batch buffer on the
30536 @@ -5925,9 +5925,8 @@ static void do_intel_finish_page_flip(struct drm_device *dev,
30537
30538 obj = work->old_fb_obj;
30539
30540 - atomic_clear_mask(1 << intel_crtc->plane,
30541 - &obj->pending_flip.counter);
30542 - if (atomic_read(&obj->pending_flip) == 0)
30543 + atomic_clear_mask_unchecked(1 << intel_crtc->plane, &obj->pending_flip);
30544 + if (atomic_read_unchecked(&obj->pending_flip) == 0)
30545 wake_up(&dev_priv->pending_flip_queue);
30546
30547 schedule_work(&work->work);
30548 @@ -6264,7 +6263,7 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc,
30549 /* Block clients from rendering to the new back buffer until
30550 * the flip occurs and the object is no longer visible.
30551 */
30552 - atomic_add(1 << intel_crtc->plane, &work->old_fb_obj->pending_flip);
30553 + atomic_add_unchecked(1 << intel_crtc->plane, &work->old_fb_obj->pending_flip);
30554
30555 ret = dev_priv->display.queue_flip(dev, crtc, fb, obj);
30556 if (ret)
30557 @@ -6279,7 +6278,7 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc,
30558 return 0;
30559
30560 cleanup_pending:
30561 - atomic_sub(1 << intel_crtc->plane, &work->old_fb_obj->pending_flip);
30562 + atomic_sub_unchecked(1 << intel_crtc->plane, &work->old_fb_obj->pending_flip);
30563 drm_gem_object_unreference(&work->old_fb_obj->base);
30564 drm_gem_object_unreference(&obj->base);
30565 mutex_unlock(&dev->struct_mutex);
30566 diff --git a/drivers/gpu/drm/mga/mga_drv.h b/drivers/gpu/drm/mga/mga_drv.h
30567 index 54558a0..2d97005 100644
30568 --- a/drivers/gpu/drm/mga/mga_drv.h
30569 +++ b/drivers/gpu/drm/mga/mga_drv.h
30570 @@ -120,9 +120,9 @@ typedef struct drm_mga_private {
30571 u32 clear_cmd;
30572 u32 maccess;
30573
30574 - atomic_t vbl_received; /**< Number of vblanks received. */
30575 + atomic_unchecked_t vbl_received; /**< Number of vblanks received. */
30576 wait_queue_head_t fence_queue;
30577 - atomic_t last_fence_retired;
30578 + atomic_unchecked_t last_fence_retired;
30579 u32 next_fence_to_post;
30580
30581 unsigned int fb_cpp;
30582 diff --git a/drivers/gpu/drm/mga/mga_irq.c b/drivers/gpu/drm/mga/mga_irq.c
30583 index 2581202..f230a8d9 100644
30584 --- a/drivers/gpu/drm/mga/mga_irq.c
30585 +++ b/drivers/gpu/drm/mga/mga_irq.c
30586 @@ -44,7 +44,7 @@ u32 mga_get_vblank_counter(struct drm_device *dev, int crtc)
30587 if (crtc != 0)
30588 return 0;
30589
30590 - return atomic_read(&dev_priv->vbl_received);
30591 + return atomic_read_unchecked(&dev_priv->vbl_received);
30592 }
30593
30594
30595 @@ -60,7 +60,7 @@ irqreturn_t mga_driver_irq_handler(DRM_IRQ_ARGS)
30596 /* VBLANK interrupt */
30597 if (status & MGA_VLINEPEN) {
30598 MGA_WRITE(MGA_ICLEAR, MGA_VLINEICLR);
30599 - atomic_inc(&dev_priv->vbl_received);
30600 + atomic_inc_unchecked(&dev_priv->vbl_received);
30601 drm_handle_vblank(dev, 0);
30602 handled = 1;
30603 }
30604 @@ -79,7 +79,7 @@ irqreturn_t mga_driver_irq_handler(DRM_IRQ_ARGS)
30605 if ((prim_start & ~0x03) != (prim_end & ~0x03))
30606 MGA_WRITE(MGA_PRIMEND, prim_end);
30607
30608 - atomic_inc(&dev_priv->last_fence_retired);
30609 + atomic_inc_unchecked(&dev_priv->last_fence_retired);
30610 DRM_WAKEUP(&dev_priv->fence_queue);
30611 handled = 1;
30612 }
30613 @@ -130,7 +130,7 @@ int mga_driver_fence_wait(struct drm_device *dev, unsigned int *sequence)
30614 * using fences.
30615 */
30616 DRM_WAIT_ON(ret, dev_priv->fence_queue, 3 * DRM_HZ,
30617 - (((cur_fence = atomic_read(&dev_priv->last_fence_retired))
30618 + (((cur_fence = atomic_read_unchecked(&dev_priv->last_fence_retired))
30619 - *sequence) <= (1 << 23)));
30620
30621 *sequence = cur_fence;
30622 diff --git a/drivers/gpu/drm/nouveau/nouveau_bios.c b/drivers/gpu/drm/nouveau/nouveau_bios.c
30623 index 2f11e16..191267e 100644
30624 --- a/drivers/gpu/drm/nouveau/nouveau_bios.c
30625 +++ b/drivers/gpu/drm/nouveau/nouveau_bios.c
30626 @@ -5340,7 +5340,7 @@ parse_bit_U_tbl_entry(struct drm_device *dev, struct nvbios *bios,
30627 struct bit_table {
30628 const char id;
30629 int (* const parse_fn)(struct drm_device *, struct nvbios *, struct bit_entry *);
30630 -};
30631 +} __no_const;
30632
30633 #define BIT_TABLE(id, funcid) ((struct bit_table){ id, parse_bit_##funcid##_tbl_entry })
30634
30635 diff --git a/drivers/gpu/drm/nouveau/nouveau_drv.h b/drivers/gpu/drm/nouveau/nouveau_drv.h
30636 index b863a3a..c55e0dc 100644
30637 --- a/drivers/gpu/drm/nouveau/nouveau_drv.h
30638 +++ b/drivers/gpu/drm/nouveau/nouveau_drv.h
30639 @@ -302,7 +302,7 @@ struct nouveau_exec_engine {
30640 u32 handle, u16 class);
30641 void (*set_tile_region)(struct drm_device *dev, int i);
30642 void (*tlb_flush)(struct drm_device *, int engine);
30643 -};
30644 +} __no_const;
30645
30646 struct nouveau_instmem_engine {
30647 void *priv;
30648 @@ -324,13 +324,13 @@ struct nouveau_instmem_engine {
30649 struct nouveau_mc_engine {
30650 int (*init)(struct drm_device *dev);
30651 void (*takedown)(struct drm_device *dev);
30652 -};
30653 +} __no_const;
30654
30655 struct nouveau_timer_engine {
30656 int (*init)(struct drm_device *dev);
30657 void (*takedown)(struct drm_device *dev);
30658 uint64_t (*read)(struct drm_device *dev);
30659 -};
30660 +} __no_const;
30661
30662 struct nouveau_fb_engine {
30663 int num_tiles;
30664 @@ -547,7 +547,7 @@ struct nouveau_vram_engine {
30665 void (*put)(struct drm_device *, struct nouveau_mem **);
30666
30667 bool (*flags_valid)(struct drm_device *, u32 tile_flags);
30668 -};
30669 +} __no_const;
30670
30671 struct nouveau_engine {
30672 struct nouveau_instmem_engine instmem;
30673 @@ -693,7 +693,7 @@ struct drm_nouveau_private {
30674 struct drm_global_reference mem_global_ref;
30675 struct ttm_bo_global_ref bo_global_ref;
30676 struct ttm_bo_device bdev;
30677 - atomic_t validate_sequence;
30678 + atomic_unchecked_t validate_sequence;
30679 int (*move)(struct nouveau_channel *,
30680 struct ttm_buffer_object *,
30681 struct ttm_mem_reg *, struct ttm_mem_reg *);
30682 diff --git a/drivers/gpu/drm/nouveau/nouveau_gem.c b/drivers/gpu/drm/nouveau/nouveau_gem.c
30683 index 30f5423..abca136 100644
30684 --- a/drivers/gpu/drm/nouveau/nouveau_gem.c
30685 +++ b/drivers/gpu/drm/nouveau/nouveau_gem.c
30686 @@ -319,7 +319,7 @@ validate_init(struct nouveau_channel *chan, struct drm_file *file_priv,
30687 int trycnt = 0;
30688 int ret, i;
30689
30690 - sequence = atomic_add_return(1, &dev_priv->ttm.validate_sequence);
30691 + sequence = atomic_add_return_unchecked(1, &dev_priv->ttm.validate_sequence);
30692 retry:
30693 if (++trycnt > 100000) {
30694 NV_ERROR(dev, "%s failed and gave up.\n", __func__);
30695 diff --git a/drivers/gpu/drm/nouveau/nouveau_state.c b/drivers/gpu/drm/nouveau/nouveau_state.c
30696 index 19706f0..f257368 100644
30697 --- a/drivers/gpu/drm/nouveau/nouveau_state.c
30698 +++ b/drivers/gpu/drm/nouveau/nouveau_state.c
30699 @@ -490,7 +490,7 @@ static bool nouveau_switcheroo_can_switch(struct pci_dev *pdev)
30700 bool can_switch;
30701
30702 spin_lock(&dev->count_lock);
30703 - can_switch = (dev->open_count == 0);
30704 + can_switch = (local_read(&dev->open_count) == 0);
30705 spin_unlock(&dev->count_lock);
30706 return can_switch;
30707 }
30708 diff --git a/drivers/gpu/drm/nouveau/nv50_sor.c b/drivers/gpu/drm/nouveau/nv50_sor.c
30709 index a9514ea..369d511 100644
30710 --- a/drivers/gpu/drm/nouveau/nv50_sor.c
30711 +++ b/drivers/gpu/drm/nouveau/nv50_sor.c
30712 @@ -304,7 +304,7 @@ nv50_sor_dpms(struct drm_encoder *encoder, int mode)
30713 }
30714
30715 if (nv_encoder->dcb->type == OUTPUT_DP) {
30716 - struct dp_train_func func = {
30717 + static struct dp_train_func func = {
30718 .link_set = nv50_sor_dp_link_set,
30719 .train_set = nv50_sor_dp_train_set,
30720 .train_adj = nv50_sor_dp_train_adj
30721 diff --git a/drivers/gpu/drm/nouveau/nvd0_display.c b/drivers/gpu/drm/nouveau/nvd0_display.c
30722 index c486d3c..3a7d6f4 100644
30723 --- a/drivers/gpu/drm/nouveau/nvd0_display.c
30724 +++ b/drivers/gpu/drm/nouveau/nvd0_display.c
30725 @@ -1366,7 +1366,7 @@ nvd0_sor_dpms(struct drm_encoder *encoder, int mode)
30726 nv_wait(dev, 0x61c030 + (or * 0x0800), 0x10000000, 0x00000000);
30727
30728 if (nv_encoder->dcb->type == OUTPUT_DP) {
30729 - struct dp_train_func func = {
30730 + static struct dp_train_func func = {
30731 .link_set = nvd0_sor_dp_link_set,
30732 .train_set = nvd0_sor_dp_train_set,
30733 .train_adj = nvd0_sor_dp_train_adj
30734 diff --git a/drivers/gpu/drm/r128/r128_cce.c b/drivers/gpu/drm/r128/r128_cce.c
30735 index bcac90b..53bfc76 100644
30736 --- a/drivers/gpu/drm/r128/r128_cce.c
30737 +++ b/drivers/gpu/drm/r128/r128_cce.c
30738 @@ -378,7 +378,7 @@ static int r128_do_init_cce(struct drm_device *dev, drm_r128_init_t *init)
30739
30740 /* GH: Simple idle check.
30741 */
30742 - atomic_set(&dev_priv->idle_count, 0);
30743 + atomic_set_unchecked(&dev_priv->idle_count, 0);
30744
30745 /* We don't support anything other than bus-mastering ring mode,
30746 * but the ring can be in either AGP or PCI space for the ring
30747 diff --git a/drivers/gpu/drm/r128/r128_drv.h b/drivers/gpu/drm/r128/r128_drv.h
30748 index 930c71b..499aded 100644
30749 --- a/drivers/gpu/drm/r128/r128_drv.h
30750 +++ b/drivers/gpu/drm/r128/r128_drv.h
30751 @@ -90,14 +90,14 @@ typedef struct drm_r128_private {
30752 int is_pci;
30753 unsigned long cce_buffers_offset;
30754
30755 - atomic_t idle_count;
30756 + atomic_unchecked_t idle_count;
30757
30758 int page_flipping;
30759 int current_page;
30760 u32 crtc_offset;
30761 u32 crtc_offset_cntl;
30762
30763 - atomic_t vbl_received;
30764 + atomic_unchecked_t vbl_received;
30765
30766 u32 color_fmt;
30767 unsigned int front_offset;
30768 diff --git a/drivers/gpu/drm/r128/r128_irq.c b/drivers/gpu/drm/r128/r128_irq.c
30769 index 429d5a0..7e899ed 100644
30770 --- a/drivers/gpu/drm/r128/r128_irq.c
30771 +++ b/drivers/gpu/drm/r128/r128_irq.c
30772 @@ -42,7 +42,7 @@ u32 r128_get_vblank_counter(struct drm_device *dev, int crtc)
30773 if (crtc != 0)
30774 return 0;
30775
30776 - return atomic_read(&dev_priv->vbl_received);
30777 + return atomic_read_unchecked(&dev_priv->vbl_received);
30778 }
30779
30780 irqreturn_t r128_driver_irq_handler(DRM_IRQ_ARGS)
30781 @@ -56,7 +56,7 @@ irqreturn_t r128_driver_irq_handler(DRM_IRQ_ARGS)
30782 /* VBLANK interrupt */
30783 if (status & R128_CRTC_VBLANK_INT) {
30784 R128_WRITE(R128_GEN_INT_STATUS, R128_CRTC_VBLANK_INT_AK);
30785 - atomic_inc(&dev_priv->vbl_received);
30786 + atomic_inc_unchecked(&dev_priv->vbl_received);
30787 drm_handle_vblank(dev, 0);
30788 return IRQ_HANDLED;
30789 }
30790 diff --git a/drivers/gpu/drm/r128/r128_state.c b/drivers/gpu/drm/r128/r128_state.c
30791 index a9e33ce..09edd4b 100644
30792 --- a/drivers/gpu/drm/r128/r128_state.c
30793 +++ b/drivers/gpu/drm/r128/r128_state.c
30794 @@ -321,10 +321,10 @@ static void r128_clear_box(drm_r128_private_t *dev_priv,
30795
30796 static void r128_cce_performance_boxes(drm_r128_private_t *dev_priv)
30797 {
30798 - if (atomic_read(&dev_priv->idle_count) == 0)
30799 + if (atomic_read_unchecked(&dev_priv->idle_count) == 0)
30800 r128_clear_box(dev_priv, 64, 4, 8, 8, 0, 255, 0);
30801 else
30802 - atomic_set(&dev_priv->idle_count, 0);
30803 + atomic_set_unchecked(&dev_priv->idle_count, 0);
30804 }
30805
30806 #endif
30807 diff --git a/drivers/gpu/drm/radeon/mkregtable.c b/drivers/gpu/drm/radeon/mkregtable.c
30808 index 5a82b6b..9e69c73 100644
30809 --- a/drivers/gpu/drm/radeon/mkregtable.c
30810 +++ b/drivers/gpu/drm/radeon/mkregtable.c
30811 @@ -637,14 +637,14 @@ static int parser_auth(struct table *t, const char *filename)
30812 regex_t mask_rex;
30813 regmatch_t match[4];
30814 char buf[1024];
30815 - size_t end;
30816 + long end;
30817 int len;
30818 int done = 0;
30819 int r;
30820 unsigned o;
30821 struct offset *offset;
30822 char last_reg_s[10];
30823 - int last_reg;
30824 + unsigned long last_reg;
30825
30826 if (regcomp
30827 (&mask_rex, "(0x[0-9a-fA-F]*) *([_a-zA-Z0-9]*)", REG_EXTENDED)) {
30828 diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
30829 index fefcca5..20a5b90 100644
30830 --- a/drivers/gpu/drm/radeon/radeon.h
30831 +++ b/drivers/gpu/drm/radeon/radeon.h
30832 @@ -743,7 +743,7 @@ struct r600_blit_cp_primitives {
30833 int x2, int y2);
30834 void (*draw_auto)(struct radeon_device *rdev);
30835 void (*set_default_state)(struct radeon_device *rdev);
30836 -};
30837 +} __no_const;
30838
30839 struct r600_blit {
30840 struct radeon_bo *shader_obj;
30841 @@ -1244,7 +1244,7 @@ struct radeon_asic {
30842 u32 (*page_flip)(struct radeon_device *rdev, int crtc, u64 crtc_base);
30843 void (*post_page_flip)(struct radeon_device *rdev, int crtc);
30844 } pflip;
30845 -};
30846 +} __no_const;
30847
30848 /*
30849 * Asic structures
30850 diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c
30851 index 066c98b..96ab858 100644
30852 --- a/drivers/gpu/drm/radeon/radeon_device.c
30853 +++ b/drivers/gpu/drm/radeon/radeon_device.c
30854 @@ -692,7 +692,7 @@ static bool radeon_switcheroo_can_switch(struct pci_dev *pdev)
30855 bool can_switch;
30856
30857 spin_lock(&dev->count_lock);
30858 - can_switch = (dev->open_count == 0);
30859 + can_switch = (local_read(&dev->open_count) == 0);
30860 spin_unlock(&dev->count_lock);
30861 return can_switch;
30862 }
30863 diff --git a/drivers/gpu/drm/radeon/radeon_drv.h b/drivers/gpu/drm/radeon/radeon_drv.h
30864 index a1b59ca..86f2d44 100644
30865 --- a/drivers/gpu/drm/radeon/radeon_drv.h
30866 +++ b/drivers/gpu/drm/radeon/radeon_drv.h
30867 @@ -255,7 +255,7 @@ typedef struct drm_radeon_private {
30868
30869 /* SW interrupt */
30870 wait_queue_head_t swi_queue;
30871 - atomic_t swi_emitted;
30872 + atomic_unchecked_t swi_emitted;
30873 int vblank_crtc;
30874 uint32_t irq_enable_reg;
30875 uint32_t r500_disp_irq_reg;
30876 diff --git a/drivers/gpu/drm/radeon/radeon_ioc32.c b/drivers/gpu/drm/radeon/radeon_ioc32.c
30877 index 48b7cea..342236f 100644
30878 --- a/drivers/gpu/drm/radeon/radeon_ioc32.c
30879 +++ b/drivers/gpu/drm/radeon/radeon_ioc32.c
30880 @@ -359,7 +359,7 @@ static int compat_radeon_cp_setparam(struct file *file, unsigned int cmd,
30881 request = compat_alloc_user_space(sizeof(*request));
30882 if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
30883 || __put_user(req32.param, &request->param)
30884 - || __put_user((void __user *)(unsigned long)req32.value,
30885 + || __put_user((unsigned long)req32.value,
30886 &request->value))
30887 return -EFAULT;
30888
30889 diff --git a/drivers/gpu/drm/radeon/radeon_irq.c b/drivers/gpu/drm/radeon/radeon_irq.c
30890 index 00da384..32f972d 100644
30891 --- a/drivers/gpu/drm/radeon/radeon_irq.c
30892 +++ b/drivers/gpu/drm/radeon/radeon_irq.c
30893 @@ -225,8 +225,8 @@ static int radeon_emit_irq(struct drm_device * dev)
30894 unsigned int ret;
30895 RING_LOCALS;
30896
30897 - atomic_inc(&dev_priv->swi_emitted);
30898 - ret = atomic_read(&dev_priv->swi_emitted);
30899 + atomic_inc_unchecked(&dev_priv->swi_emitted);
30900 + ret = atomic_read_unchecked(&dev_priv->swi_emitted);
30901
30902 BEGIN_RING(4);
30903 OUT_RING_REG(RADEON_LAST_SWI_REG, ret);
30904 @@ -352,7 +352,7 @@ int radeon_driver_irq_postinstall(struct drm_device *dev)
30905 drm_radeon_private_t *dev_priv =
30906 (drm_radeon_private_t *) dev->dev_private;
30907
30908 - atomic_set(&dev_priv->swi_emitted, 0);
30909 + atomic_set_unchecked(&dev_priv->swi_emitted, 0);
30910 DRM_INIT_WAITQUEUE(&dev_priv->swi_queue);
30911
30912 dev->max_vblank_count = 0x001fffff;
30913 diff --git a/drivers/gpu/drm/radeon/radeon_state.c b/drivers/gpu/drm/radeon/radeon_state.c
30914 index e8422ae..d22d4a8 100644
30915 --- a/drivers/gpu/drm/radeon/radeon_state.c
30916 +++ b/drivers/gpu/drm/radeon/radeon_state.c
30917 @@ -2168,7 +2168,7 @@ static int radeon_cp_clear(struct drm_device *dev, void *data, struct drm_file *
30918 if (sarea_priv->nbox > RADEON_NR_SAREA_CLIPRECTS)
30919 sarea_priv->nbox = RADEON_NR_SAREA_CLIPRECTS;
30920
30921 - if (DRM_COPY_FROM_USER(&depth_boxes, clear->depth_boxes,
30922 + if (sarea_priv->nbox > RADEON_NR_SAREA_CLIPRECTS || DRM_COPY_FROM_USER(&depth_boxes, clear->depth_boxes,
30923 sarea_priv->nbox * sizeof(depth_boxes[0])))
30924 return -EFAULT;
30925
30926 @@ -3031,7 +3031,7 @@ static int radeon_cp_getparam(struct drm_device *dev, void *data, struct drm_fil
30927 {
30928 drm_radeon_private_t *dev_priv = dev->dev_private;
30929 drm_radeon_getparam_t *param = data;
30930 - int value;
30931 + int value = 0;
30932
30933 DRM_DEBUG("pid=%d\n", DRM_CURRENTPID);
30934
30935 diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c
30936 index c94a225..5795d34 100644
30937 --- a/drivers/gpu/drm/radeon/radeon_ttm.c
30938 +++ b/drivers/gpu/drm/radeon/radeon_ttm.c
30939 @@ -852,8 +852,10 @@ int radeon_mmap(struct file *filp, struct vm_area_struct *vma)
30940 }
30941 if (unlikely(ttm_vm_ops == NULL)) {
30942 ttm_vm_ops = vma->vm_ops;
30943 - radeon_ttm_vm_ops = *ttm_vm_ops;
30944 - radeon_ttm_vm_ops.fault = &radeon_ttm_fault;
30945 + pax_open_kernel();
30946 + memcpy((void *)&radeon_ttm_vm_ops, ttm_vm_ops, sizeof(radeon_ttm_vm_ops));
30947 + *(void **)&radeon_ttm_vm_ops.fault = &radeon_ttm_fault;
30948 + pax_close_kernel();
30949 }
30950 vma->vm_ops = &radeon_ttm_vm_ops;
30951 return 0;
30952 diff --git a/drivers/gpu/drm/radeon/rs690.c b/drivers/gpu/drm/radeon/rs690.c
30953 index 159b6a4..fa82487 100644
30954 --- a/drivers/gpu/drm/radeon/rs690.c
30955 +++ b/drivers/gpu/drm/radeon/rs690.c
30956 @@ -304,9 +304,11 @@ void rs690_crtc_bandwidth_compute(struct radeon_device *rdev,
30957 if (rdev->pm.max_bandwidth.full > rdev->pm.sideport_bandwidth.full &&
30958 rdev->pm.sideport_bandwidth.full)
30959 rdev->pm.max_bandwidth = rdev->pm.sideport_bandwidth;
30960 - read_delay_latency.full = dfixed_const(370 * 800 * 1000);
30961 + read_delay_latency.full = dfixed_const(800 * 1000);
30962 read_delay_latency.full = dfixed_div(read_delay_latency,
30963 rdev->pm.igp_sideport_mclk);
30964 + a.full = dfixed_const(370);
30965 + read_delay_latency.full = dfixed_mul(read_delay_latency, a);
30966 } else {
30967 if (rdev->pm.max_bandwidth.full > rdev->pm.k8_bandwidth.full &&
30968 rdev->pm.k8_bandwidth.full)
30969 diff --git a/drivers/gpu/drm/ttm/ttm_page_alloc.c b/drivers/gpu/drm/ttm/ttm_page_alloc.c
30970 index ebc6fac..a8313ed 100644
30971 --- a/drivers/gpu/drm/ttm/ttm_page_alloc.c
30972 +++ b/drivers/gpu/drm/ttm/ttm_page_alloc.c
30973 @@ -394,9 +394,9 @@ static int ttm_pool_get_num_unused_pages(void)
30974 static int ttm_pool_mm_shrink(struct shrinker *shrink,
30975 struct shrink_control *sc)
30976 {
30977 - static atomic_t start_pool = ATOMIC_INIT(0);
30978 + static atomic_unchecked_t start_pool = ATOMIC_INIT(0);
30979 unsigned i;
30980 - unsigned pool_offset = atomic_add_return(1, &start_pool);
30981 + unsigned pool_offset = atomic_add_return_unchecked(1, &start_pool);
30982 struct ttm_page_pool *pool;
30983 int shrink_pages = sc->nr_to_scan;
30984
30985 diff --git a/drivers/gpu/drm/via/via_drv.h b/drivers/gpu/drm/via/via_drv.h
30986 index 88edacc..1e5412b 100644
30987 --- a/drivers/gpu/drm/via/via_drv.h
30988 +++ b/drivers/gpu/drm/via/via_drv.h
30989 @@ -51,7 +51,7 @@ typedef struct drm_via_ring_buffer {
30990 typedef uint32_t maskarray_t[5];
30991
30992 typedef struct drm_via_irq {
30993 - atomic_t irq_received;
30994 + atomic_unchecked_t irq_received;
30995 uint32_t pending_mask;
30996 uint32_t enable_mask;
30997 wait_queue_head_t irq_queue;
30998 @@ -75,7 +75,7 @@ typedef struct drm_via_private {
30999 struct timeval last_vblank;
31000 int last_vblank_valid;
31001 unsigned usec_per_vblank;
31002 - atomic_t vbl_received;
31003 + atomic_unchecked_t vbl_received;
31004 drm_via_state_t hc_state;
31005 char pci_buf[VIA_PCI_BUF_SIZE];
31006 const uint32_t *fire_offsets[VIA_FIRE_BUF_SIZE];
31007 diff --git a/drivers/gpu/drm/via/via_irq.c b/drivers/gpu/drm/via/via_irq.c
31008 index d391f48..10c8ca3 100644
31009 --- a/drivers/gpu/drm/via/via_irq.c
31010 +++ b/drivers/gpu/drm/via/via_irq.c
31011 @@ -102,7 +102,7 @@ u32 via_get_vblank_counter(struct drm_device *dev, int crtc)
31012 if (crtc != 0)
31013 return 0;
31014
31015 - return atomic_read(&dev_priv->vbl_received);
31016 + return atomic_read_unchecked(&dev_priv->vbl_received);
31017 }
31018
31019 irqreturn_t via_driver_irq_handler(DRM_IRQ_ARGS)
31020 @@ -117,8 +117,8 @@ irqreturn_t via_driver_irq_handler(DRM_IRQ_ARGS)
31021
31022 status = VIA_READ(VIA_REG_INTERRUPT);
31023 if (status & VIA_IRQ_VBLANK_PENDING) {
31024 - atomic_inc(&dev_priv->vbl_received);
31025 - if (!(atomic_read(&dev_priv->vbl_received) & 0x0F)) {
31026 + atomic_inc_unchecked(&dev_priv->vbl_received);
31027 + if (!(atomic_read_unchecked(&dev_priv->vbl_received) & 0x0F)) {
31028 do_gettimeofday(&cur_vblank);
31029 if (dev_priv->last_vblank_valid) {
31030 dev_priv->usec_per_vblank =
31031 @@ -128,7 +128,7 @@ irqreturn_t via_driver_irq_handler(DRM_IRQ_ARGS)
31032 dev_priv->last_vblank = cur_vblank;
31033 dev_priv->last_vblank_valid = 1;
31034 }
31035 - if (!(atomic_read(&dev_priv->vbl_received) & 0xFF)) {
31036 + if (!(atomic_read_unchecked(&dev_priv->vbl_received) & 0xFF)) {
31037 DRM_DEBUG("US per vblank is: %u\n",
31038 dev_priv->usec_per_vblank);
31039 }
31040 @@ -138,7 +138,7 @@ irqreturn_t via_driver_irq_handler(DRM_IRQ_ARGS)
31041
31042 for (i = 0; i < dev_priv->num_irqs; ++i) {
31043 if (status & cur_irq->pending_mask) {
31044 - atomic_inc(&cur_irq->irq_received);
31045 + atomic_inc_unchecked(&cur_irq->irq_received);
31046 DRM_WAKEUP(&cur_irq->irq_queue);
31047 handled = 1;
31048 if (dev_priv->irq_map[drm_via_irq_dma0_td] == i)
31049 @@ -243,11 +243,11 @@ via_driver_irq_wait(struct drm_device *dev, unsigned int irq, int force_sequence
31050 DRM_WAIT_ON(ret, cur_irq->irq_queue, 3 * DRM_HZ,
31051 ((VIA_READ(masks[irq][2]) & masks[irq][3]) ==
31052 masks[irq][4]));
31053 - cur_irq_sequence = atomic_read(&cur_irq->irq_received);
31054 + cur_irq_sequence = atomic_read_unchecked(&cur_irq->irq_received);
31055 } else {
31056 DRM_WAIT_ON(ret, cur_irq->irq_queue, 3 * DRM_HZ,
31057 (((cur_irq_sequence =
31058 - atomic_read(&cur_irq->irq_received)) -
31059 + atomic_read_unchecked(&cur_irq->irq_received)) -
31060 *sequence) <= (1 << 23)));
31061 }
31062 *sequence = cur_irq_sequence;
31063 @@ -285,7 +285,7 @@ void via_driver_irq_preinstall(struct drm_device *dev)
31064 }
31065
31066 for (i = 0; i < dev_priv->num_irqs; ++i) {
31067 - atomic_set(&cur_irq->irq_received, 0);
31068 + atomic_set_unchecked(&cur_irq->irq_received, 0);
31069 cur_irq->enable_mask = dev_priv->irq_masks[i][0];
31070 cur_irq->pending_mask = dev_priv->irq_masks[i][1];
31071 DRM_INIT_WAITQUEUE(&cur_irq->irq_queue);
31072 @@ -367,7 +367,7 @@ int via_wait_irq(struct drm_device *dev, void *data, struct drm_file *file_priv)
31073 switch (irqwait->request.type & ~VIA_IRQ_FLAGS_MASK) {
31074 case VIA_IRQ_RELATIVE:
31075 irqwait->request.sequence +=
31076 - atomic_read(&cur_irq->irq_received);
31077 + atomic_read_unchecked(&cur_irq->irq_received);
31078 irqwait->request.type &= ~_DRM_VBLANK_RELATIVE;
31079 case VIA_IRQ_ABSOLUTE:
31080 break;
31081 diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
31082 index d0f2c07..9ebd9c3 100644
31083 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
31084 +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
31085 @@ -263,7 +263,7 @@ struct vmw_private {
31086 * Fencing and IRQs.
31087 */
31088
31089 - atomic_t marker_seq;
31090 + atomic_unchecked_t marker_seq;
31091 wait_queue_head_t fence_queue;
31092 wait_queue_head_t fifo_queue;
31093 int fence_queue_waiters; /* Protected by hw_mutex */
31094 diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c b/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c
31095 index a0c2f12..68ae6cb 100644
31096 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c
31097 +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c
31098 @@ -137,7 +137,7 @@ int vmw_fifo_init(struct vmw_private *dev_priv, struct vmw_fifo_state *fifo)
31099 (unsigned int) min,
31100 (unsigned int) fifo->capabilities);
31101
31102 - atomic_set(&dev_priv->marker_seq, dev_priv->last_read_seqno);
31103 + atomic_set_unchecked(&dev_priv->marker_seq, dev_priv->last_read_seqno);
31104 iowrite32(dev_priv->last_read_seqno, fifo_mem + SVGA_FIFO_FENCE);
31105 vmw_marker_queue_init(&fifo->marker_queue);
31106 return vmw_fifo_send_fence(dev_priv, &dummy);
31107 @@ -355,7 +355,7 @@ void *vmw_fifo_reserve(struct vmw_private *dev_priv, uint32_t bytes)
31108 if (reserveable)
31109 iowrite32(bytes, fifo_mem +
31110 SVGA_FIFO_RESERVED);
31111 - return fifo_mem + (next_cmd >> 2);
31112 + return (__le32 __force_kernel *)fifo_mem + (next_cmd >> 2);
31113 } else {
31114 need_bounce = true;
31115 }
31116 @@ -475,7 +475,7 @@ int vmw_fifo_send_fence(struct vmw_private *dev_priv, uint32_t *seqno)
31117
31118 fm = vmw_fifo_reserve(dev_priv, bytes);
31119 if (unlikely(fm == NULL)) {
31120 - *seqno = atomic_read(&dev_priv->marker_seq);
31121 + *seqno = atomic_read_unchecked(&dev_priv->marker_seq);
31122 ret = -ENOMEM;
31123 (void)vmw_fallback_wait(dev_priv, false, true, *seqno,
31124 false, 3*HZ);
31125 @@ -483,7 +483,7 @@ int vmw_fifo_send_fence(struct vmw_private *dev_priv, uint32_t *seqno)
31126 }
31127
31128 do {
31129 - *seqno = atomic_add_return(1, &dev_priv->marker_seq);
31130 + *seqno = atomic_add_return_unchecked(1, &dev_priv->marker_seq);
31131 } while (*seqno == 0);
31132
31133 if (!(fifo_state->capabilities & SVGA_FIFO_CAP_FENCE)) {
31134 diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_irq.c b/drivers/gpu/drm/vmwgfx/vmwgfx_irq.c
31135 index cabc95f..14b3d77 100644
31136 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_irq.c
31137 +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_irq.c
31138 @@ -107,7 +107,7 @@ bool vmw_seqno_passed(struct vmw_private *dev_priv,
31139 * emitted. Then the fence is stale and signaled.
31140 */
31141
31142 - ret = ((atomic_read(&dev_priv->marker_seq) - seqno)
31143 + ret = ((atomic_read_unchecked(&dev_priv->marker_seq) - seqno)
31144 > VMW_FENCE_WRAP);
31145
31146 return ret;
31147 @@ -138,7 +138,7 @@ int vmw_fallback_wait(struct vmw_private *dev_priv,
31148
31149 if (fifo_idle)
31150 down_read(&fifo_state->rwsem);
31151 - signal_seq = atomic_read(&dev_priv->marker_seq);
31152 + signal_seq = atomic_read_unchecked(&dev_priv->marker_seq);
31153 ret = 0;
31154
31155 for (;;) {
31156 diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_marker.c b/drivers/gpu/drm/vmwgfx/vmwgfx_marker.c
31157 index 8a8725c..afed796 100644
31158 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_marker.c
31159 +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_marker.c
31160 @@ -151,7 +151,7 @@ int vmw_wait_lag(struct vmw_private *dev_priv,
31161 while (!vmw_lag_lt(queue, us)) {
31162 spin_lock(&queue->lock);
31163 if (list_empty(&queue->head))
31164 - seqno = atomic_read(&dev_priv->marker_seq);
31165 + seqno = atomic_read_unchecked(&dev_priv->marker_seq);
31166 else {
31167 marker = list_first_entry(&queue->head,
31168 struct vmw_marker, head);
31169 diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
31170 index 1f6957c..b579481 100644
31171 --- a/drivers/hid/hid-core.c
31172 +++ b/drivers/hid/hid-core.c
31173 @@ -2153,7 +2153,7 @@ static bool hid_ignore(struct hid_device *hdev)
31174
31175 int hid_add_device(struct hid_device *hdev)
31176 {
31177 - static atomic_t id = ATOMIC_INIT(0);
31178 + static atomic_unchecked_t id = ATOMIC_INIT(0);
31179 int ret;
31180
31181 if (WARN_ON(hdev->status & HID_STAT_ADDED))
31182 @@ -2188,7 +2188,7 @@ int hid_add_device(struct hid_device *hdev)
31183 /* XXX hack, any other cleaner solution after the driver core
31184 * is converted to allow more than 20 bytes as the device name? */
31185 dev_set_name(&hdev->dev, "%04X:%04X:%04X.%04X", hdev->bus,
31186 - hdev->vendor, hdev->product, atomic_inc_return(&id));
31187 + hdev->vendor, hdev->product, atomic_inc_return_unchecked(&id));
31188
31189 hid_debug_register(hdev, dev_name(&hdev->dev));
31190 ret = device_add(&hdev->dev);
31191 diff --git a/drivers/hid/hid-wiimote-debug.c b/drivers/hid/hid-wiimote-debug.c
31192 index eec3291..8ed706b 100644
31193 --- a/drivers/hid/hid-wiimote-debug.c
31194 +++ b/drivers/hid/hid-wiimote-debug.c
31195 @@ -66,7 +66,7 @@ static ssize_t wiidebug_eeprom_read(struct file *f, char __user *u, size_t s,
31196 else if (size == 0)
31197 return -EIO;
31198
31199 - if (copy_to_user(u, buf, size))
31200 + if (size > sizeof(buf) || copy_to_user(u, buf, size))
31201 return -EFAULT;
31202
31203 *off += size;
31204 diff --git a/drivers/hid/usbhid/hiddev.c b/drivers/hid/usbhid/hiddev.c
31205 index 14599e2..711c965 100644
31206 --- a/drivers/hid/usbhid/hiddev.c
31207 +++ b/drivers/hid/usbhid/hiddev.c
31208 @@ -625,7 +625,7 @@ static long hiddev_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
31209 break;
31210
31211 case HIDIOCAPPLICATION:
31212 - if (arg < 0 || arg >= hid->maxapplication)
31213 + if (arg >= hid->maxapplication)
31214 break;
31215
31216 for (i = 0; i < hid->maxcollection; i++)
31217 diff --git a/drivers/hv/channel.c b/drivers/hv/channel.c
31218 index 4065374..10ed7dc 100644
31219 --- a/drivers/hv/channel.c
31220 +++ b/drivers/hv/channel.c
31221 @@ -400,8 +400,8 @@ int vmbus_establish_gpadl(struct vmbus_channel *channel, void *kbuffer,
31222 int ret = 0;
31223 int t;
31224
31225 - next_gpadl_handle = atomic_read(&vmbus_connection.next_gpadl_handle);
31226 - atomic_inc(&vmbus_connection.next_gpadl_handle);
31227 + next_gpadl_handle = atomic_read_unchecked(&vmbus_connection.next_gpadl_handle);
31228 + atomic_inc_unchecked(&vmbus_connection.next_gpadl_handle);
31229
31230 ret = create_gpadl_header(kbuffer, size, &msginfo, &msgcount);
31231 if (ret)
31232 diff --git a/drivers/hv/hv.c b/drivers/hv/hv.c
31233 index 86f8885..ab9cb2b 100644
31234 --- a/drivers/hv/hv.c
31235 +++ b/drivers/hv/hv.c
31236 @@ -132,7 +132,7 @@ static u64 do_hypercall(u64 control, void *input, void *output)
31237 u64 output_address = (output) ? virt_to_phys(output) : 0;
31238 u32 output_address_hi = output_address >> 32;
31239 u32 output_address_lo = output_address & 0xFFFFFFFF;
31240 - void *hypercall_page = hv_context.hypercall_page;
31241 + void *hypercall_page = ktva_ktla(hv_context.hypercall_page);
31242
31243 __asm__ __volatile__ ("call *%8" : "=d"(hv_status_hi),
31244 "=a"(hv_status_lo) : "d" (control_hi),
31245 diff --git a/drivers/hv/hyperv_vmbus.h b/drivers/hv/hyperv_vmbus.h
31246 index b9426a6..677ce34 100644
31247 --- a/drivers/hv/hyperv_vmbus.h
31248 +++ b/drivers/hv/hyperv_vmbus.h
31249 @@ -555,7 +555,7 @@ enum vmbus_connect_state {
31250 struct vmbus_connection {
31251 enum vmbus_connect_state conn_state;
31252
31253 - atomic_t next_gpadl_handle;
31254 + atomic_unchecked_t next_gpadl_handle;
31255
31256 /*
31257 * Represents channel interrupts. Each bit position represents a
31258 diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
31259 index a220e57..428f54d 100644
31260 --- a/drivers/hv/vmbus_drv.c
31261 +++ b/drivers/hv/vmbus_drv.c
31262 @@ -663,10 +663,10 @@ int vmbus_device_register(struct hv_device *child_device_obj)
31263 {
31264 int ret = 0;
31265
31266 - static atomic_t device_num = ATOMIC_INIT(0);
31267 + static atomic_unchecked_t device_num = ATOMIC_INIT(0);
31268
31269 dev_set_name(&child_device_obj->device, "vmbus_0_%d",
31270 - atomic_inc_return(&device_num));
31271 + atomic_inc_return_unchecked(&device_num));
31272
31273 child_device_obj->device.bus = &hv_bus;
31274 child_device_obj->device.parent = &hv_acpi_dev->dev;
31275 diff --git a/drivers/hwmon/acpi_power_meter.c b/drivers/hwmon/acpi_power_meter.c
31276 index 34ad5a2..e2b0ae8 100644
31277 --- a/drivers/hwmon/acpi_power_meter.c
31278 +++ b/drivers/hwmon/acpi_power_meter.c
31279 @@ -308,8 +308,6 @@ static ssize_t set_trip(struct device *dev, struct device_attribute *devattr,
31280 return res;
31281
31282 temp /= 1000;
31283 - if (temp < 0)
31284 - return -EINVAL;
31285
31286 mutex_lock(&resource->lock);
31287 resource->trip[attr->index - 7] = temp;
31288 diff --git a/drivers/hwmon/sht15.c b/drivers/hwmon/sht15.c
31289 index 8b011d0..3de24a1 100644
31290 --- a/drivers/hwmon/sht15.c
31291 +++ b/drivers/hwmon/sht15.c
31292 @@ -166,7 +166,7 @@ struct sht15_data {
31293 int supply_uV;
31294 bool supply_uV_valid;
31295 struct work_struct update_supply_work;
31296 - atomic_t interrupt_handled;
31297 + atomic_unchecked_t interrupt_handled;
31298 };
31299
31300 /**
31301 @@ -509,13 +509,13 @@ static int sht15_measurement(struct sht15_data *data,
31302 return ret;
31303
31304 gpio_direction_input(data->pdata->gpio_data);
31305 - atomic_set(&data->interrupt_handled, 0);
31306 + atomic_set_unchecked(&data->interrupt_handled, 0);
31307
31308 enable_irq(gpio_to_irq(data->pdata->gpio_data));
31309 if (gpio_get_value(data->pdata->gpio_data) == 0) {
31310 disable_irq_nosync(gpio_to_irq(data->pdata->gpio_data));
31311 /* Only relevant if the interrupt hasn't occurred. */
31312 - if (!atomic_read(&data->interrupt_handled))
31313 + if (!atomic_read_unchecked(&data->interrupt_handled))
31314 schedule_work(&data->read_work);
31315 }
31316 ret = wait_event_timeout(data->wait_queue,
31317 @@ -782,7 +782,7 @@ static irqreturn_t sht15_interrupt_fired(int irq, void *d)
31318
31319 /* First disable the interrupt */
31320 disable_irq_nosync(irq);
31321 - atomic_inc(&data->interrupt_handled);
31322 + atomic_inc_unchecked(&data->interrupt_handled);
31323 /* Then schedule a reading work struct */
31324 if (data->state != SHT15_READING_NOTHING)
31325 schedule_work(&data->read_work);
31326 @@ -804,11 +804,11 @@ static void sht15_bh_read_data(struct work_struct *work_s)
31327 * If not, then start the interrupt again - care here as could
31328 * have gone low in meantime so verify it hasn't!
31329 */
31330 - atomic_set(&data->interrupt_handled, 0);
31331 + atomic_set_unchecked(&data->interrupt_handled, 0);
31332 enable_irq(gpio_to_irq(data->pdata->gpio_data));
31333 /* If still not occurred or another handler was scheduled */
31334 if (gpio_get_value(data->pdata->gpio_data)
31335 - || atomic_read(&data->interrupt_handled))
31336 + || atomic_read_unchecked(&data->interrupt_handled))
31337 return;
31338 }
31339
31340 diff --git a/drivers/i2c/busses/i2c-amd756-s4882.c b/drivers/i2c/busses/i2c-amd756-s4882.c
31341 index 378fcb5..5e91fa8 100644
31342 --- a/drivers/i2c/busses/i2c-amd756-s4882.c
31343 +++ b/drivers/i2c/busses/i2c-amd756-s4882.c
31344 @@ -43,7 +43,7 @@
31345 extern struct i2c_adapter amd756_smbus;
31346
31347 static struct i2c_adapter *s4882_adapter;
31348 -static struct i2c_algorithm *s4882_algo;
31349 +static i2c_algorithm_no_const *s4882_algo;
31350
31351 /* Wrapper access functions for multiplexed SMBus */
31352 static DEFINE_MUTEX(amd756_lock);
31353 diff --git a/drivers/i2c/busses/i2c-nforce2-s4985.c b/drivers/i2c/busses/i2c-nforce2-s4985.c
31354 index 29015eb..af2d8e9 100644
31355 --- a/drivers/i2c/busses/i2c-nforce2-s4985.c
31356 +++ b/drivers/i2c/busses/i2c-nforce2-s4985.c
31357 @@ -41,7 +41,7 @@
31358 extern struct i2c_adapter *nforce2_smbus;
31359
31360 static struct i2c_adapter *s4985_adapter;
31361 -static struct i2c_algorithm *s4985_algo;
31362 +static i2c_algorithm_no_const *s4985_algo;
31363
31364 /* Wrapper access functions for multiplexed SMBus */
31365 static DEFINE_MUTEX(nforce2_lock);
31366 diff --git a/drivers/i2c/i2c-mux.c b/drivers/i2c/i2c-mux.c
31367 index 1038c38..eb92f51 100644
31368 --- a/drivers/i2c/i2c-mux.c
31369 +++ b/drivers/i2c/i2c-mux.c
31370 @@ -30,7 +30,7 @@
31371 /* multiplexer per channel data */
31372 struct i2c_mux_priv {
31373 struct i2c_adapter adap;
31374 - struct i2c_algorithm algo;
31375 + i2c_algorithm_no_const algo;
31376
31377 struct i2c_adapter *parent;
31378 void *mux_priv; /* the mux chip/device */
31379 diff --git a/drivers/ide/aec62xx.c b/drivers/ide/aec62xx.c
31380 index 57d00ca..0145194 100644
31381 --- a/drivers/ide/aec62xx.c
31382 +++ b/drivers/ide/aec62xx.c
31383 @@ -181,7 +181,7 @@ static const struct ide_port_ops atp86x_port_ops = {
31384 .cable_detect = atp86x_cable_detect,
31385 };
31386
31387 -static const struct ide_port_info aec62xx_chipsets[] __devinitdata = {
31388 +static const struct ide_port_info aec62xx_chipsets[] __devinitconst = {
31389 { /* 0: AEC6210 */
31390 .name = DRV_NAME,
31391 .init_chipset = init_chipset_aec62xx,
31392 diff --git a/drivers/ide/alim15x3.c b/drivers/ide/alim15x3.c
31393 index 2c8016a..911a27c 100644
31394 --- a/drivers/ide/alim15x3.c
31395 +++ b/drivers/ide/alim15x3.c
31396 @@ -512,7 +512,7 @@ static const struct ide_dma_ops ali_dma_ops = {
31397 .dma_sff_read_status = ide_dma_sff_read_status,
31398 };
31399
31400 -static const struct ide_port_info ali15x3_chipset __devinitdata = {
31401 +static const struct ide_port_info ali15x3_chipset __devinitconst = {
31402 .name = DRV_NAME,
31403 .init_chipset = init_chipset_ali15x3,
31404 .init_hwif = init_hwif_ali15x3,
31405 diff --git a/drivers/ide/amd74xx.c b/drivers/ide/amd74xx.c
31406 index 3747b25..56fc995 100644
31407 --- a/drivers/ide/amd74xx.c
31408 +++ b/drivers/ide/amd74xx.c
31409 @@ -223,7 +223,7 @@ static const struct ide_port_ops amd_port_ops = {
31410 .udma_mask = udma, \
31411 }
31412
31413 -static const struct ide_port_info amd74xx_chipsets[] __devinitdata = {
31414 +static const struct ide_port_info amd74xx_chipsets[] __devinitconst = {
31415 /* 0: AMD7401 */ DECLARE_AMD_DEV(0x00, ATA_UDMA2),
31416 /* 1: AMD7409 */ DECLARE_AMD_DEV(ATA_SWDMA2, ATA_UDMA4),
31417 /* 2: AMD7411/7441 */ DECLARE_AMD_DEV(ATA_SWDMA2, ATA_UDMA5),
31418 diff --git a/drivers/ide/atiixp.c b/drivers/ide/atiixp.c
31419 index 15f0ead..cb43480 100644
31420 --- a/drivers/ide/atiixp.c
31421 +++ b/drivers/ide/atiixp.c
31422 @@ -139,7 +139,7 @@ static const struct ide_port_ops atiixp_port_ops = {
31423 .cable_detect = atiixp_cable_detect,
31424 };
31425
31426 -static const struct ide_port_info atiixp_pci_info[] __devinitdata = {
31427 +static const struct ide_port_info atiixp_pci_info[] __devinitconst = {
31428 { /* 0: IXP200/300/400/700 */
31429 .name = DRV_NAME,
31430 .enablebits = {{0x48,0x01,0x00}, {0x48,0x08,0x00}},
31431 diff --git a/drivers/ide/cmd64x.c b/drivers/ide/cmd64x.c
31432 index 5f80312..d1fc438 100644
31433 --- a/drivers/ide/cmd64x.c
31434 +++ b/drivers/ide/cmd64x.c
31435 @@ -327,7 +327,7 @@ static const struct ide_dma_ops cmd646_rev1_dma_ops = {
31436 .dma_sff_read_status = ide_dma_sff_read_status,
31437 };
31438
31439 -static const struct ide_port_info cmd64x_chipsets[] __devinitdata = {
31440 +static const struct ide_port_info cmd64x_chipsets[] __devinitconst = {
31441 { /* 0: CMD643 */
31442 .name = DRV_NAME,
31443 .init_chipset = init_chipset_cmd64x,
31444 diff --git a/drivers/ide/cs5520.c b/drivers/ide/cs5520.c
31445 index 2c1e5f7..1444762 100644
31446 --- a/drivers/ide/cs5520.c
31447 +++ b/drivers/ide/cs5520.c
31448 @@ -94,7 +94,7 @@ static const struct ide_port_ops cs5520_port_ops = {
31449 .set_dma_mode = cs5520_set_dma_mode,
31450 };
31451
31452 -static const struct ide_port_info cyrix_chipset __devinitdata = {
31453 +static const struct ide_port_info cyrix_chipset __devinitconst = {
31454 .name = DRV_NAME,
31455 .enablebits = { { 0x60, 0x01, 0x01 }, { 0x60, 0x02, 0x02 } },
31456 .port_ops = &cs5520_port_ops,
31457 diff --git a/drivers/ide/cs5530.c b/drivers/ide/cs5530.c
31458 index 4dc4eb9..49b40ad 100644
31459 --- a/drivers/ide/cs5530.c
31460 +++ b/drivers/ide/cs5530.c
31461 @@ -245,7 +245,7 @@ static const struct ide_port_ops cs5530_port_ops = {
31462 .udma_filter = cs5530_udma_filter,
31463 };
31464
31465 -static const struct ide_port_info cs5530_chipset __devinitdata = {
31466 +static const struct ide_port_info cs5530_chipset __devinitconst = {
31467 .name = DRV_NAME,
31468 .init_chipset = init_chipset_cs5530,
31469 .init_hwif = init_hwif_cs5530,
31470 diff --git a/drivers/ide/cs5535.c b/drivers/ide/cs5535.c
31471 index 5059faf..18d4c85 100644
31472 --- a/drivers/ide/cs5535.c
31473 +++ b/drivers/ide/cs5535.c
31474 @@ -170,7 +170,7 @@ static const struct ide_port_ops cs5535_port_ops = {
31475 .cable_detect = cs5535_cable_detect,
31476 };
31477
31478 -static const struct ide_port_info cs5535_chipset __devinitdata = {
31479 +static const struct ide_port_info cs5535_chipset __devinitconst = {
31480 .name = DRV_NAME,
31481 .port_ops = &cs5535_port_ops,
31482 .host_flags = IDE_HFLAG_SINGLE | IDE_HFLAG_POST_SET_MODE,
31483 diff --git a/drivers/ide/cy82c693.c b/drivers/ide/cy82c693.c
31484 index 847553f..3ffb49d 100644
31485 --- a/drivers/ide/cy82c693.c
31486 +++ b/drivers/ide/cy82c693.c
31487 @@ -163,7 +163,7 @@ static const struct ide_port_ops cy82c693_port_ops = {
31488 .set_dma_mode = cy82c693_set_dma_mode,
31489 };
31490
31491 -static const struct ide_port_info cy82c693_chipset __devinitdata = {
31492 +static const struct ide_port_info cy82c693_chipset __devinitconst = {
31493 .name = DRV_NAME,
31494 .init_iops = init_iops_cy82c693,
31495 .port_ops = &cy82c693_port_ops,
31496 diff --git a/drivers/ide/hpt366.c b/drivers/ide/hpt366.c
31497 index 58c51cd..4aec3b8 100644
31498 --- a/drivers/ide/hpt366.c
31499 +++ b/drivers/ide/hpt366.c
31500 @@ -443,7 +443,7 @@ static struct hpt_timings hpt37x_timings = {
31501 }
31502 };
31503
31504 -static const struct hpt_info hpt36x __devinitdata = {
31505 +static const struct hpt_info hpt36x __devinitconst = {
31506 .chip_name = "HPT36x",
31507 .chip_type = HPT36x,
31508 .udma_mask = HPT366_ALLOW_ATA66_3 ? (HPT366_ALLOW_ATA66_4 ? ATA_UDMA4 : ATA_UDMA3) : ATA_UDMA2,
31509 @@ -451,7 +451,7 @@ static const struct hpt_info hpt36x __devinitdata = {
31510 .timings = &hpt36x_timings
31511 };
31512
31513 -static const struct hpt_info hpt370 __devinitdata = {
31514 +static const struct hpt_info hpt370 __devinitconst = {
31515 .chip_name = "HPT370",
31516 .chip_type = HPT370,
31517 .udma_mask = HPT370_ALLOW_ATA100_5 ? ATA_UDMA5 : ATA_UDMA4,
31518 @@ -459,7 +459,7 @@ static const struct hpt_info hpt370 __devinitdata = {
31519 .timings = &hpt37x_timings
31520 };
31521
31522 -static const struct hpt_info hpt370a __devinitdata = {
31523 +static const struct hpt_info hpt370a __devinitconst = {
31524 .chip_name = "HPT370A",
31525 .chip_type = HPT370A,
31526 .udma_mask = HPT370_ALLOW_ATA100_5 ? ATA_UDMA5 : ATA_UDMA4,
31527 @@ -467,7 +467,7 @@ static const struct hpt_info hpt370a __devinitdata = {
31528 .timings = &hpt37x_timings
31529 };
31530
31531 -static const struct hpt_info hpt374 __devinitdata = {
31532 +static const struct hpt_info hpt374 __devinitconst = {
31533 .chip_name = "HPT374",
31534 .chip_type = HPT374,
31535 .udma_mask = ATA_UDMA5,
31536 @@ -475,7 +475,7 @@ static const struct hpt_info hpt374 __devinitdata = {
31537 .timings = &hpt37x_timings
31538 };
31539
31540 -static const struct hpt_info hpt372 __devinitdata = {
31541 +static const struct hpt_info hpt372 __devinitconst = {
31542 .chip_name = "HPT372",
31543 .chip_type = HPT372,
31544 .udma_mask = HPT372_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5,
31545 @@ -483,7 +483,7 @@ static const struct hpt_info hpt372 __devinitdata = {
31546 .timings = &hpt37x_timings
31547 };
31548
31549 -static const struct hpt_info hpt372a __devinitdata = {
31550 +static const struct hpt_info hpt372a __devinitconst = {
31551 .chip_name = "HPT372A",
31552 .chip_type = HPT372A,
31553 .udma_mask = HPT372_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5,
31554 @@ -491,7 +491,7 @@ static const struct hpt_info hpt372a __devinitdata = {
31555 .timings = &hpt37x_timings
31556 };
31557
31558 -static const struct hpt_info hpt302 __devinitdata = {
31559 +static const struct hpt_info hpt302 __devinitconst = {
31560 .chip_name = "HPT302",
31561 .chip_type = HPT302,
31562 .udma_mask = HPT302_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5,
31563 @@ -499,7 +499,7 @@ static const struct hpt_info hpt302 __devinitdata = {
31564 .timings = &hpt37x_timings
31565 };
31566
31567 -static const struct hpt_info hpt371 __devinitdata = {
31568 +static const struct hpt_info hpt371 __devinitconst = {
31569 .chip_name = "HPT371",
31570 .chip_type = HPT371,
31571 .udma_mask = HPT371_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5,
31572 @@ -507,7 +507,7 @@ static const struct hpt_info hpt371 __devinitdata = {
31573 .timings = &hpt37x_timings
31574 };
31575
31576 -static const struct hpt_info hpt372n __devinitdata = {
31577 +static const struct hpt_info hpt372n __devinitconst = {
31578 .chip_name = "HPT372N",
31579 .chip_type = HPT372N,
31580 .udma_mask = HPT372_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5,
31581 @@ -515,7 +515,7 @@ static const struct hpt_info hpt372n __devinitdata = {
31582 .timings = &hpt37x_timings
31583 };
31584
31585 -static const struct hpt_info hpt302n __devinitdata = {
31586 +static const struct hpt_info hpt302n __devinitconst = {
31587 .chip_name = "HPT302N",
31588 .chip_type = HPT302N,
31589 .udma_mask = HPT302_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5,
31590 @@ -523,7 +523,7 @@ static const struct hpt_info hpt302n __devinitdata = {
31591 .timings = &hpt37x_timings
31592 };
31593
31594 -static const struct hpt_info hpt371n __devinitdata = {
31595 +static const struct hpt_info hpt371n __devinitconst = {
31596 .chip_name = "HPT371N",
31597 .chip_type = HPT371N,
31598 .udma_mask = HPT371_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5,
31599 @@ -1361,7 +1361,7 @@ static const struct ide_dma_ops hpt36x_dma_ops = {
31600 .dma_sff_read_status = ide_dma_sff_read_status,
31601 };
31602
31603 -static const struct ide_port_info hpt366_chipsets[] __devinitdata = {
31604 +static const struct ide_port_info hpt366_chipsets[] __devinitconst = {
31605 { /* 0: HPT36x */
31606 .name = DRV_NAME,
31607 .init_chipset = init_chipset_hpt366,
31608 diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
31609 index 8126824..55a2798 100644
31610 --- a/drivers/ide/ide-cd.c
31611 +++ b/drivers/ide/ide-cd.c
31612 @@ -768,7 +768,7 @@ static void cdrom_do_block_pc(ide_drive_t *drive, struct request *rq)
31613 alignment = queue_dma_alignment(q) | q->dma_pad_mask;
31614 if ((unsigned long)buf & alignment
31615 || blk_rq_bytes(rq) & q->dma_pad_mask
31616 - || object_is_on_stack(buf))
31617 + || object_starts_on_stack(buf))
31618 drive->dma = 0;
31619 }
31620 }
31621 diff --git a/drivers/ide/ide-pci-generic.c b/drivers/ide/ide-pci-generic.c
31622 index 7f56b73..dab5b67 100644
31623 --- a/drivers/ide/ide-pci-generic.c
31624 +++ b/drivers/ide/ide-pci-generic.c
31625 @@ -53,7 +53,7 @@ static const struct ide_port_ops netcell_port_ops = {
31626 .udma_mask = ATA_UDMA6, \
31627 }
31628
31629 -static const struct ide_port_info generic_chipsets[] __devinitdata = {
31630 +static const struct ide_port_info generic_chipsets[] __devinitconst = {
31631 /* 0: Unknown */
31632 DECLARE_GENERIC_PCI_DEV(0),
31633
31634 diff --git a/drivers/ide/it8172.c b/drivers/ide/it8172.c
31635 index 560e66d..d5dd180 100644
31636 --- a/drivers/ide/it8172.c
31637 +++ b/drivers/ide/it8172.c
31638 @@ -115,7 +115,7 @@ static const struct ide_port_ops it8172_port_ops = {
31639 .set_dma_mode = it8172_set_dma_mode,
31640 };
31641
31642 -static const struct ide_port_info it8172_port_info __devinitdata = {
31643 +static const struct ide_port_info it8172_port_info __devinitconst = {
31644 .name = DRV_NAME,
31645 .port_ops = &it8172_port_ops,
31646 .enablebits = { {0x41, 0x80, 0x80}, {0x00, 0x00, 0x00} },
31647 diff --git a/drivers/ide/it8213.c b/drivers/ide/it8213.c
31648 index 46816ba..1847aeb 100644
31649 --- a/drivers/ide/it8213.c
31650 +++ b/drivers/ide/it8213.c
31651 @@ -156,7 +156,7 @@ static const struct ide_port_ops it8213_port_ops = {
31652 .cable_detect = it8213_cable_detect,
31653 };
31654
31655 -static const struct ide_port_info it8213_chipset __devinitdata = {
31656 +static const struct ide_port_info it8213_chipset __devinitconst = {
31657 .name = DRV_NAME,
31658 .enablebits = { {0x41, 0x80, 0x80} },
31659 .port_ops = &it8213_port_ops,
31660 diff --git a/drivers/ide/it821x.c b/drivers/ide/it821x.c
31661 index 2e3169f..c5611db 100644
31662 --- a/drivers/ide/it821x.c
31663 +++ b/drivers/ide/it821x.c
31664 @@ -630,7 +630,7 @@ static const struct ide_port_ops it821x_port_ops = {
31665 .cable_detect = it821x_cable_detect,
31666 };
31667
31668 -static const struct ide_port_info it821x_chipset __devinitdata = {
31669 +static const struct ide_port_info it821x_chipset __devinitconst = {
31670 .name = DRV_NAME,
31671 .init_chipset = init_chipset_it821x,
31672 .init_hwif = init_hwif_it821x,
31673 diff --git a/drivers/ide/jmicron.c b/drivers/ide/jmicron.c
31674 index 74c2c4a..efddd7d 100644
31675 --- a/drivers/ide/jmicron.c
31676 +++ b/drivers/ide/jmicron.c
31677 @@ -102,7 +102,7 @@ static const struct ide_port_ops jmicron_port_ops = {
31678 .cable_detect = jmicron_cable_detect,
31679 };
31680
31681 -static const struct ide_port_info jmicron_chipset __devinitdata = {
31682 +static const struct ide_port_info jmicron_chipset __devinitconst = {
31683 .name = DRV_NAME,
31684 .enablebits = { { 0x40, 0x01, 0x01 }, { 0x40, 0x10, 0x10 } },
31685 .port_ops = &jmicron_port_ops,
31686 diff --git a/drivers/ide/ns87415.c b/drivers/ide/ns87415.c
31687 index 95327a2..73f78d8 100644
31688 --- a/drivers/ide/ns87415.c
31689 +++ b/drivers/ide/ns87415.c
31690 @@ -293,7 +293,7 @@ static const struct ide_dma_ops ns87415_dma_ops = {
31691 .dma_sff_read_status = superio_dma_sff_read_status,
31692 };
31693
31694 -static const struct ide_port_info ns87415_chipset __devinitdata = {
31695 +static const struct ide_port_info ns87415_chipset __devinitconst = {
31696 .name = DRV_NAME,
31697 .init_hwif = init_hwif_ns87415,
31698 .tp_ops = &ns87415_tp_ops,
31699 diff --git a/drivers/ide/opti621.c b/drivers/ide/opti621.c
31700 index 1a53a4c..39edc66 100644
31701 --- a/drivers/ide/opti621.c
31702 +++ b/drivers/ide/opti621.c
31703 @@ -131,7 +131,7 @@ static const struct ide_port_ops opti621_port_ops = {
31704 .set_pio_mode = opti621_set_pio_mode,
31705 };
31706
31707 -static const struct ide_port_info opti621_chipset __devinitdata = {
31708 +static const struct ide_port_info opti621_chipset __devinitconst = {
31709 .name = DRV_NAME,
31710 .enablebits = { {0x45, 0x80, 0x00}, {0x40, 0x08, 0x00} },
31711 .port_ops = &opti621_port_ops,
31712 diff --git a/drivers/ide/pdc202xx_new.c b/drivers/ide/pdc202xx_new.c
31713 index 9546fe2..2e5ceb6 100644
31714 --- a/drivers/ide/pdc202xx_new.c
31715 +++ b/drivers/ide/pdc202xx_new.c
31716 @@ -465,7 +465,7 @@ static const struct ide_port_ops pdcnew_port_ops = {
31717 .udma_mask = udma, \
31718 }
31719
31720 -static const struct ide_port_info pdcnew_chipsets[] __devinitdata = {
31721 +static const struct ide_port_info pdcnew_chipsets[] __devinitconst = {
31722 /* 0: PDC202{68,70} */ DECLARE_PDCNEW_DEV(ATA_UDMA5),
31723 /* 1: PDC202{69,71,75,76,77} */ DECLARE_PDCNEW_DEV(ATA_UDMA6),
31724 };
31725 diff --git a/drivers/ide/pdc202xx_old.c b/drivers/ide/pdc202xx_old.c
31726 index 3a35ec6..5634510 100644
31727 --- a/drivers/ide/pdc202xx_old.c
31728 +++ b/drivers/ide/pdc202xx_old.c
31729 @@ -270,7 +270,7 @@ static const struct ide_dma_ops pdc2026x_dma_ops = {
31730 .max_sectors = sectors, \
31731 }
31732
31733 -static const struct ide_port_info pdc202xx_chipsets[] __devinitdata = {
31734 +static const struct ide_port_info pdc202xx_chipsets[] __devinitconst = {
31735 { /* 0: PDC20246 */
31736 .name = DRV_NAME,
31737 .init_chipset = init_chipset_pdc202xx,
31738 diff --git a/drivers/ide/piix.c b/drivers/ide/piix.c
31739 index 1892e81..fe0fd60 100644
31740 --- a/drivers/ide/piix.c
31741 +++ b/drivers/ide/piix.c
31742 @@ -344,7 +344,7 @@ static const struct ide_port_ops ich_port_ops = {
31743 .udma_mask = udma, \
31744 }
31745
31746 -static const struct ide_port_info piix_pci_info[] __devinitdata = {
31747 +static const struct ide_port_info piix_pci_info[] __devinitconst = {
31748 /* 0: MPIIX */
31749 { /*
31750 * MPIIX actually has only a single IDE channel mapped to
31751 diff --git a/drivers/ide/rz1000.c b/drivers/ide/rz1000.c
31752 index a6414a8..c04173e 100644
31753 --- a/drivers/ide/rz1000.c
31754 +++ b/drivers/ide/rz1000.c
31755 @@ -38,7 +38,7 @@ static int __devinit rz1000_disable_readahead(struct pci_dev *dev)
31756 }
31757 }
31758
31759 -static const struct ide_port_info rz1000_chipset __devinitdata = {
31760 +static const struct ide_port_info rz1000_chipset __devinitconst = {
31761 .name = DRV_NAME,
31762 .host_flags = IDE_HFLAG_NO_DMA,
31763 };
31764 diff --git a/drivers/ide/sc1200.c b/drivers/ide/sc1200.c
31765 index 356b9b5..d4758eb 100644
31766 --- a/drivers/ide/sc1200.c
31767 +++ b/drivers/ide/sc1200.c
31768 @@ -291,7 +291,7 @@ static const struct ide_dma_ops sc1200_dma_ops = {
31769 .dma_sff_read_status = ide_dma_sff_read_status,
31770 };
31771
31772 -static const struct ide_port_info sc1200_chipset __devinitdata = {
31773 +static const struct ide_port_info sc1200_chipset __devinitconst = {
31774 .name = DRV_NAME,
31775 .port_ops = &sc1200_port_ops,
31776 .dma_ops = &sc1200_dma_ops,
31777 diff --git a/drivers/ide/scc_pata.c b/drivers/ide/scc_pata.c
31778 index b7f5b0c..9701038 100644
31779 --- a/drivers/ide/scc_pata.c
31780 +++ b/drivers/ide/scc_pata.c
31781 @@ -811,7 +811,7 @@ static const struct ide_dma_ops scc_dma_ops = {
31782 .dma_sff_read_status = scc_dma_sff_read_status,
31783 };
31784
31785 -static const struct ide_port_info scc_chipset __devinitdata = {
31786 +static const struct ide_port_info scc_chipset __devinitconst = {
31787 .name = "sccIDE",
31788 .init_iops = init_iops_scc,
31789 .init_dma = scc_init_dma,
31790 diff --git a/drivers/ide/serverworks.c b/drivers/ide/serverworks.c
31791 index 35fb8da..24d72ef 100644
31792 --- a/drivers/ide/serverworks.c
31793 +++ b/drivers/ide/serverworks.c
31794 @@ -337,7 +337,7 @@ static const struct ide_port_ops svwks_port_ops = {
31795 .cable_detect = svwks_cable_detect,
31796 };
31797
31798 -static const struct ide_port_info serverworks_chipsets[] __devinitdata = {
31799 +static const struct ide_port_info serverworks_chipsets[] __devinitconst = {
31800 { /* 0: OSB4 */
31801 .name = DRV_NAME,
31802 .init_chipset = init_chipset_svwks,
31803 diff --git a/drivers/ide/siimage.c b/drivers/ide/siimage.c
31804 index ddeda44..46f7e30 100644
31805 --- a/drivers/ide/siimage.c
31806 +++ b/drivers/ide/siimage.c
31807 @@ -719,7 +719,7 @@ static const struct ide_dma_ops sil_dma_ops = {
31808 .udma_mask = ATA_UDMA6, \
31809 }
31810
31811 -static const struct ide_port_info siimage_chipsets[] __devinitdata = {
31812 +static const struct ide_port_info siimage_chipsets[] __devinitconst = {
31813 /* 0: SiI680 */ DECLARE_SII_DEV(&sil_pata_port_ops),
31814 /* 1: SiI3112 */ DECLARE_SII_DEV(&sil_sata_port_ops)
31815 };
31816 diff --git a/drivers/ide/sis5513.c b/drivers/ide/sis5513.c
31817 index 4a00225..09e61b4 100644
31818 --- a/drivers/ide/sis5513.c
31819 +++ b/drivers/ide/sis5513.c
31820 @@ -563,7 +563,7 @@ static const struct ide_port_ops sis_ata133_port_ops = {
31821 .cable_detect = sis_cable_detect,
31822 };
31823
31824 -static const struct ide_port_info sis5513_chipset __devinitdata = {
31825 +static const struct ide_port_info sis5513_chipset __devinitconst = {
31826 .name = DRV_NAME,
31827 .init_chipset = init_chipset_sis5513,
31828 .enablebits = { {0x4a, 0x02, 0x02}, {0x4a, 0x04, 0x04} },
31829 diff --git a/drivers/ide/sl82c105.c b/drivers/ide/sl82c105.c
31830 index f21dc2a..d051cd2 100644
31831 --- a/drivers/ide/sl82c105.c
31832 +++ b/drivers/ide/sl82c105.c
31833 @@ -299,7 +299,7 @@ static const struct ide_dma_ops sl82c105_dma_ops = {
31834 .dma_sff_read_status = ide_dma_sff_read_status,
31835 };
31836
31837 -static const struct ide_port_info sl82c105_chipset __devinitdata = {
31838 +static const struct ide_port_info sl82c105_chipset __devinitconst = {
31839 .name = DRV_NAME,
31840 .init_chipset = init_chipset_sl82c105,
31841 .enablebits = {{0x40,0x01,0x01}, {0x40,0x10,0x10}},
31842 diff --git a/drivers/ide/slc90e66.c b/drivers/ide/slc90e66.c
31843 index 864ffe0..863a5e9 100644
31844 --- a/drivers/ide/slc90e66.c
31845 +++ b/drivers/ide/slc90e66.c
31846 @@ -132,7 +132,7 @@ static const struct ide_port_ops slc90e66_port_ops = {
31847 .cable_detect = slc90e66_cable_detect,
31848 };
31849
31850 -static const struct ide_port_info slc90e66_chipset __devinitdata = {
31851 +static const struct ide_port_info slc90e66_chipset __devinitconst = {
31852 .name = DRV_NAME,
31853 .enablebits = { {0x41, 0x80, 0x80}, {0x43, 0x80, 0x80} },
31854 .port_ops = &slc90e66_port_ops,
31855 diff --git a/drivers/ide/tc86c001.c b/drivers/ide/tc86c001.c
31856 index 4799d5c..1794678 100644
31857 --- a/drivers/ide/tc86c001.c
31858 +++ b/drivers/ide/tc86c001.c
31859 @@ -192,7 +192,7 @@ static const struct ide_dma_ops tc86c001_dma_ops = {
31860 .dma_sff_read_status = ide_dma_sff_read_status,
31861 };
31862
31863 -static const struct ide_port_info tc86c001_chipset __devinitdata = {
31864 +static const struct ide_port_info tc86c001_chipset __devinitconst = {
31865 .name = DRV_NAME,
31866 .init_hwif = init_hwif_tc86c001,
31867 .port_ops = &tc86c001_port_ops,
31868 diff --git a/drivers/ide/triflex.c b/drivers/ide/triflex.c
31869 index 281c914..55ce1b8 100644
31870 --- a/drivers/ide/triflex.c
31871 +++ b/drivers/ide/triflex.c
31872 @@ -92,7 +92,7 @@ static const struct ide_port_ops triflex_port_ops = {
31873 .set_dma_mode = triflex_set_mode,
31874 };
31875
31876 -static const struct ide_port_info triflex_device __devinitdata = {
31877 +static const struct ide_port_info triflex_device __devinitconst = {
31878 .name = DRV_NAME,
31879 .enablebits = {{0x80, 0x01, 0x01}, {0x80, 0x02, 0x02}},
31880 .port_ops = &triflex_port_ops,
31881 diff --git a/drivers/ide/trm290.c b/drivers/ide/trm290.c
31882 index 4b42ca0..e494a98 100644
31883 --- a/drivers/ide/trm290.c
31884 +++ b/drivers/ide/trm290.c
31885 @@ -324,7 +324,7 @@ static struct ide_dma_ops trm290_dma_ops = {
31886 .dma_check = trm290_dma_check,
31887 };
31888
31889 -static const struct ide_port_info trm290_chipset __devinitdata = {
31890 +static const struct ide_port_info trm290_chipset __devinitconst = {
31891 .name = DRV_NAME,
31892 .init_hwif = init_hwif_trm290,
31893 .tp_ops = &trm290_tp_ops,
31894 diff --git a/drivers/ide/via82cxxx.c b/drivers/ide/via82cxxx.c
31895 index f46f49c..eb77678 100644
31896 --- a/drivers/ide/via82cxxx.c
31897 +++ b/drivers/ide/via82cxxx.c
31898 @@ -403,7 +403,7 @@ static const struct ide_port_ops via_port_ops = {
31899 .cable_detect = via82cxxx_cable_detect,
31900 };
31901
31902 -static const struct ide_port_info via82cxxx_chipset __devinitdata = {
31903 +static const struct ide_port_info via82cxxx_chipset __devinitconst = {
31904 .name = DRV_NAME,
31905 .init_chipset = init_chipset_via82cxxx,
31906 .enablebits = { { 0x40, 0x02, 0x02 }, { 0x40, 0x01, 0x01 } },
31907 diff --git a/drivers/ieee802154/fakehard.c b/drivers/ieee802154/fakehard.c
31908 index 73d4531..c90cd2d 100644
31909 --- a/drivers/ieee802154/fakehard.c
31910 +++ b/drivers/ieee802154/fakehard.c
31911 @@ -386,7 +386,7 @@ static int __devinit ieee802154fake_probe(struct platform_device *pdev)
31912 phy->transmit_power = 0xbf;
31913
31914 dev->netdev_ops = &fake_ops;
31915 - dev->ml_priv = &fake_mlme;
31916 + dev->ml_priv = (void *)&fake_mlme;
31917
31918 priv = netdev_priv(dev);
31919 priv->phy = phy;
31920 diff --git a/drivers/infiniband/core/cm.c b/drivers/infiniband/core/cm.c
31921 index c889aae..6cf5aa7 100644
31922 --- a/drivers/infiniband/core/cm.c
31923 +++ b/drivers/infiniband/core/cm.c
31924 @@ -114,7 +114,7 @@ static char const counter_group_names[CM_COUNTER_GROUPS]
31925
31926 struct cm_counter_group {
31927 struct kobject obj;
31928 - atomic_long_t counter[CM_ATTR_COUNT];
31929 + atomic_long_unchecked_t counter[CM_ATTR_COUNT];
31930 };
31931
31932 struct cm_counter_attribute {
31933 @@ -1394,7 +1394,7 @@ static void cm_dup_req_handler(struct cm_work *work,
31934 struct ib_mad_send_buf *msg = NULL;
31935 int ret;
31936
31937 - atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
31938 + atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
31939 counter[CM_REQ_COUNTER]);
31940
31941 /* Quick state check to discard duplicate REQs. */
31942 @@ -1778,7 +1778,7 @@ static void cm_dup_rep_handler(struct cm_work *work)
31943 if (!cm_id_priv)
31944 return;
31945
31946 - atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
31947 + atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
31948 counter[CM_REP_COUNTER]);
31949 ret = cm_alloc_response_msg(work->port, work->mad_recv_wc, &msg);
31950 if (ret)
31951 @@ -1945,7 +1945,7 @@ static int cm_rtu_handler(struct cm_work *work)
31952 if (cm_id_priv->id.state != IB_CM_REP_SENT &&
31953 cm_id_priv->id.state != IB_CM_MRA_REP_RCVD) {
31954 spin_unlock_irq(&cm_id_priv->lock);
31955 - atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
31956 + atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
31957 counter[CM_RTU_COUNTER]);
31958 goto out;
31959 }
31960 @@ -2128,7 +2128,7 @@ static int cm_dreq_handler(struct cm_work *work)
31961 cm_id_priv = cm_acquire_id(dreq_msg->remote_comm_id,
31962 dreq_msg->local_comm_id);
31963 if (!cm_id_priv) {
31964 - atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
31965 + atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
31966 counter[CM_DREQ_COUNTER]);
31967 cm_issue_drep(work->port, work->mad_recv_wc);
31968 return -EINVAL;
31969 @@ -2153,7 +2153,7 @@ static int cm_dreq_handler(struct cm_work *work)
31970 case IB_CM_MRA_REP_RCVD:
31971 break;
31972 case IB_CM_TIMEWAIT:
31973 - atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
31974 + atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
31975 counter[CM_DREQ_COUNTER]);
31976 if (cm_alloc_response_msg(work->port, work->mad_recv_wc, &msg))
31977 goto unlock;
31978 @@ -2167,7 +2167,7 @@ static int cm_dreq_handler(struct cm_work *work)
31979 cm_free_msg(msg);
31980 goto deref;
31981 case IB_CM_DREQ_RCVD:
31982 - atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
31983 + atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
31984 counter[CM_DREQ_COUNTER]);
31985 goto unlock;
31986 default:
31987 @@ -2534,7 +2534,7 @@ static int cm_mra_handler(struct cm_work *work)
31988 ib_modify_mad(cm_id_priv->av.port->mad_agent,
31989 cm_id_priv->msg, timeout)) {
31990 if (cm_id_priv->id.lap_state == IB_CM_MRA_LAP_RCVD)
31991 - atomic_long_inc(&work->port->
31992 + atomic_long_inc_unchecked(&work->port->
31993 counter_group[CM_RECV_DUPLICATES].
31994 counter[CM_MRA_COUNTER]);
31995 goto out;
31996 @@ -2543,7 +2543,7 @@ static int cm_mra_handler(struct cm_work *work)
31997 break;
31998 case IB_CM_MRA_REQ_RCVD:
31999 case IB_CM_MRA_REP_RCVD:
32000 - atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
32001 + atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
32002 counter[CM_MRA_COUNTER]);
32003 /* fall through */
32004 default:
32005 @@ -2705,7 +2705,7 @@ static int cm_lap_handler(struct cm_work *work)
32006 case IB_CM_LAP_IDLE:
32007 break;
32008 case IB_CM_MRA_LAP_SENT:
32009 - atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
32010 + atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
32011 counter[CM_LAP_COUNTER]);
32012 if (cm_alloc_response_msg(work->port, work->mad_recv_wc, &msg))
32013 goto unlock;
32014 @@ -2721,7 +2721,7 @@ static int cm_lap_handler(struct cm_work *work)
32015 cm_free_msg(msg);
32016 goto deref;
32017 case IB_CM_LAP_RCVD:
32018 - atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
32019 + atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
32020 counter[CM_LAP_COUNTER]);
32021 goto unlock;
32022 default:
32023 @@ -3005,7 +3005,7 @@ static int cm_sidr_req_handler(struct cm_work *work)
32024 cur_cm_id_priv = cm_insert_remote_sidr(cm_id_priv);
32025 if (cur_cm_id_priv) {
32026 spin_unlock_irq(&cm.lock);
32027 - atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
32028 + atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
32029 counter[CM_SIDR_REQ_COUNTER]);
32030 goto out; /* Duplicate message. */
32031 }
32032 @@ -3217,10 +3217,10 @@ static void cm_send_handler(struct ib_mad_agent *mad_agent,
32033 if (!msg->context[0] && (attr_index != CM_REJ_COUNTER))
32034 msg->retries = 1;
32035
32036 - atomic_long_add(1 + msg->retries,
32037 + atomic_long_add_unchecked(1 + msg->retries,
32038 &port->counter_group[CM_XMIT].counter[attr_index]);
32039 if (msg->retries)
32040 - atomic_long_add(msg->retries,
32041 + atomic_long_add_unchecked(msg->retries,
32042 &port->counter_group[CM_XMIT_RETRIES].
32043 counter[attr_index]);
32044
32045 @@ -3430,7 +3430,7 @@ static void cm_recv_handler(struct ib_mad_agent *mad_agent,
32046 }
32047
32048 attr_id = be16_to_cpu(mad_recv_wc->recv_buf.mad->mad_hdr.attr_id);
32049 - atomic_long_inc(&port->counter_group[CM_RECV].
32050 + atomic_long_inc_unchecked(&port->counter_group[CM_RECV].
32051 counter[attr_id - CM_ATTR_ID_OFFSET]);
32052
32053 work = kmalloc(sizeof *work + sizeof(struct ib_sa_path_rec) * paths,
32054 @@ -3635,7 +3635,7 @@ static ssize_t cm_show_counter(struct kobject *obj, struct attribute *attr,
32055 cm_attr = container_of(attr, struct cm_counter_attribute, attr);
32056
32057 return sprintf(buf, "%ld\n",
32058 - atomic_long_read(&group->counter[cm_attr->index]));
32059 + atomic_long_read_unchecked(&group->counter[cm_attr->index]));
32060 }
32061
32062 static const struct sysfs_ops cm_counter_ops = {
32063 diff --git a/drivers/infiniband/core/fmr_pool.c b/drivers/infiniband/core/fmr_pool.c
32064 index 176c8f9..2627b62 100644
32065 --- a/drivers/infiniband/core/fmr_pool.c
32066 +++ b/drivers/infiniband/core/fmr_pool.c
32067 @@ -98,8 +98,8 @@ struct ib_fmr_pool {
32068
32069 struct task_struct *thread;
32070
32071 - atomic_t req_ser;
32072 - atomic_t flush_ser;
32073 + atomic_unchecked_t req_ser;
32074 + atomic_unchecked_t flush_ser;
32075
32076 wait_queue_head_t force_wait;
32077 };
32078 @@ -180,10 +180,10 @@ static int ib_fmr_cleanup_thread(void *pool_ptr)
32079 struct ib_fmr_pool *pool = pool_ptr;
32080
32081 do {
32082 - if (atomic_read(&pool->flush_ser) - atomic_read(&pool->req_ser) < 0) {
32083 + if (atomic_read_unchecked(&pool->flush_ser) - atomic_read_unchecked(&pool->req_ser) < 0) {
32084 ib_fmr_batch_release(pool);
32085
32086 - atomic_inc(&pool->flush_ser);
32087 + atomic_inc_unchecked(&pool->flush_ser);
32088 wake_up_interruptible(&pool->force_wait);
32089
32090 if (pool->flush_function)
32091 @@ -191,7 +191,7 @@ static int ib_fmr_cleanup_thread(void *pool_ptr)
32092 }
32093
32094 set_current_state(TASK_INTERRUPTIBLE);
32095 - if (atomic_read(&pool->flush_ser) - atomic_read(&pool->req_ser) >= 0 &&
32096 + if (atomic_read_unchecked(&pool->flush_ser) - atomic_read_unchecked(&pool->req_ser) >= 0 &&
32097 !kthread_should_stop())
32098 schedule();
32099 __set_current_state(TASK_RUNNING);
32100 @@ -283,8 +283,8 @@ struct ib_fmr_pool *ib_create_fmr_pool(struct ib_pd *pd,
32101 pool->dirty_watermark = params->dirty_watermark;
32102 pool->dirty_len = 0;
32103 spin_lock_init(&pool->pool_lock);
32104 - atomic_set(&pool->req_ser, 0);
32105 - atomic_set(&pool->flush_ser, 0);
32106 + atomic_set_unchecked(&pool->req_ser, 0);
32107 + atomic_set_unchecked(&pool->flush_ser, 0);
32108 init_waitqueue_head(&pool->force_wait);
32109
32110 pool->thread = kthread_run(ib_fmr_cleanup_thread,
32111 @@ -412,11 +412,11 @@ int ib_flush_fmr_pool(struct ib_fmr_pool *pool)
32112 }
32113 spin_unlock_irq(&pool->pool_lock);
32114
32115 - serial = atomic_inc_return(&pool->req_ser);
32116 + serial = atomic_inc_return_unchecked(&pool->req_ser);
32117 wake_up_process(pool->thread);
32118
32119 if (wait_event_interruptible(pool->force_wait,
32120 - atomic_read(&pool->flush_ser) - serial >= 0))
32121 + atomic_read_unchecked(&pool->flush_ser) - serial >= 0))
32122 return -EINTR;
32123
32124 return 0;
32125 @@ -526,7 +526,7 @@ int ib_fmr_pool_unmap(struct ib_pool_fmr *fmr)
32126 } else {
32127 list_add_tail(&fmr->list, &pool->dirty_list);
32128 if (++pool->dirty_len >= pool->dirty_watermark) {
32129 - atomic_inc(&pool->req_ser);
32130 + atomic_inc_unchecked(&pool->req_ser);
32131 wake_up_process(pool->thread);
32132 }
32133 }
32134 diff --git a/drivers/infiniband/hw/cxgb4/mem.c b/drivers/infiniband/hw/cxgb4/mem.c
32135 index 57e07c6..56d09d4 100644
32136 --- a/drivers/infiniband/hw/cxgb4/mem.c
32137 +++ b/drivers/infiniband/hw/cxgb4/mem.c
32138 @@ -122,7 +122,7 @@ static int write_tpt_entry(struct c4iw_rdev *rdev, u32 reset_tpt_entry,
32139 int err;
32140 struct fw_ri_tpte tpt;
32141 u32 stag_idx;
32142 - static atomic_t key;
32143 + static atomic_unchecked_t key;
32144
32145 if (c4iw_fatal_error(rdev))
32146 return -EIO;
32147 @@ -139,7 +139,7 @@ static int write_tpt_entry(struct c4iw_rdev *rdev, u32 reset_tpt_entry,
32148 if (rdev->stats.stag.cur > rdev->stats.stag.max)
32149 rdev->stats.stag.max = rdev->stats.stag.cur;
32150 mutex_unlock(&rdev->stats.lock);
32151 - *stag = (stag_idx << 8) | (atomic_inc_return(&key) & 0xff);
32152 + *stag = (stag_idx << 8) | (atomic_inc_return_unchecked(&key) & 0xff);
32153 }
32154 PDBG("%s stag_state 0x%0x type 0x%0x pdid 0x%0x, stag_idx 0x%x\n",
32155 __func__, stag_state, type, pdid, stag_idx);
32156 diff --git a/drivers/infiniband/hw/ipath/ipath_rc.c b/drivers/infiniband/hw/ipath/ipath_rc.c
32157 index 79b3dbc..96e5fcc 100644
32158 --- a/drivers/infiniband/hw/ipath/ipath_rc.c
32159 +++ b/drivers/infiniband/hw/ipath/ipath_rc.c
32160 @@ -1868,7 +1868,7 @@ void ipath_rc_rcv(struct ipath_ibdev *dev, struct ipath_ib_header *hdr,
32161 struct ib_atomic_eth *ateth;
32162 struct ipath_ack_entry *e;
32163 u64 vaddr;
32164 - atomic64_t *maddr;
32165 + atomic64_unchecked_t *maddr;
32166 u64 sdata;
32167 u32 rkey;
32168 u8 next;
32169 @@ -1903,11 +1903,11 @@ void ipath_rc_rcv(struct ipath_ibdev *dev, struct ipath_ib_header *hdr,
32170 IB_ACCESS_REMOTE_ATOMIC)))
32171 goto nack_acc_unlck;
32172 /* Perform atomic OP and save result. */
32173 - maddr = (atomic64_t *) qp->r_sge.sge.vaddr;
32174 + maddr = (atomic64_unchecked_t *) qp->r_sge.sge.vaddr;
32175 sdata = be64_to_cpu(ateth->swap_data);
32176 e = &qp->s_ack_queue[qp->r_head_ack_queue];
32177 e->atomic_data = (opcode == OP(FETCH_ADD)) ?
32178 - (u64) atomic64_add_return(sdata, maddr) - sdata :
32179 + (u64) atomic64_add_return_unchecked(sdata, maddr) - sdata :
32180 (u64) cmpxchg((u64 *) qp->r_sge.sge.vaddr,
32181 be64_to_cpu(ateth->compare_data),
32182 sdata);
32183 diff --git a/drivers/infiniband/hw/ipath/ipath_ruc.c b/drivers/infiniband/hw/ipath/ipath_ruc.c
32184 index 1f95bba..9530f87 100644
32185 --- a/drivers/infiniband/hw/ipath/ipath_ruc.c
32186 +++ b/drivers/infiniband/hw/ipath/ipath_ruc.c
32187 @@ -266,7 +266,7 @@ static void ipath_ruc_loopback(struct ipath_qp *sqp)
32188 unsigned long flags;
32189 struct ib_wc wc;
32190 u64 sdata;
32191 - atomic64_t *maddr;
32192 + atomic64_unchecked_t *maddr;
32193 enum ib_wc_status send_status;
32194
32195 /*
32196 @@ -382,11 +382,11 @@ again:
32197 IB_ACCESS_REMOTE_ATOMIC)))
32198 goto acc_err;
32199 /* Perform atomic OP and save result. */
32200 - maddr = (atomic64_t *) qp->r_sge.sge.vaddr;
32201 + maddr = (atomic64_unchecked_t *) qp->r_sge.sge.vaddr;
32202 sdata = wqe->wr.wr.atomic.compare_add;
32203 *(u64 *) sqp->s_sge.sge.vaddr =
32204 (wqe->wr.opcode == IB_WR_ATOMIC_FETCH_AND_ADD) ?
32205 - (u64) atomic64_add_return(sdata, maddr) - sdata :
32206 + (u64) atomic64_add_return_unchecked(sdata, maddr) - sdata :
32207 (u64) cmpxchg((u64 *) qp->r_sge.sge.vaddr,
32208 sdata, wqe->wr.wr.atomic.swap);
32209 goto send_comp;
32210 diff --git a/drivers/infiniband/hw/nes/nes.c b/drivers/infiniband/hw/nes/nes.c
32211 index 7140199..da60063 100644
32212 --- a/drivers/infiniband/hw/nes/nes.c
32213 +++ b/drivers/infiniband/hw/nes/nes.c
32214 @@ -103,7 +103,7 @@ MODULE_PARM_DESC(limit_maxrdreqsz, "Limit max read request size to 256 Bytes");
32215 LIST_HEAD(nes_adapter_list);
32216 static LIST_HEAD(nes_dev_list);
32217
32218 -atomic_t qps_destroyed;
32219 +atomic_unchecked_t qps_destroyed;
32220
32221 static unsigned int ee_flsh_adapter;
32222 static unsigned int sysfs_nonidx_addr;
32223 @@ -272,7 +272,7 @@ static void nes_cqp_rem_ref_callback(struct nes_device *nesdev, struct nes_cqp_r
32224 struct nes_qp *nesqp = cqp_request->cqp_callback_pointer;
32225 struct nes_adapter *nesadapter = nesdev->nesadapter;
32226
32227 - atomic_inc(&qps_destroyed);
32228 + atomic_inc_unchecked(&qps_destroyed);
32229
32230 /* Free the control structures */
32231
32232 diff --git a/drivers/infiniband/hw/nes/nes.h b/drivers/infiniband/hw/nes/nes.h
32233 index c438e46..ca30356 100644
32234 --- a/drivers/infiniband/hw/nes/nes.h
32235 +++ b/drivers/infiniband/hw/nes/nes.h
32236 @@ -178,17 +178,17 @@ extern unsigned int nes_debug_level;
32237 extern unsigned int wqm_quanta;
32238 extern struct list_head nes_adapter_list;
32239
32240 -extern atomic_t cm_connects;
32241 -extern atomic_t cm_accepts;
32242 -extern atomic_t cm_disconnects;
32243 -extern atomic_t cm_closes;
32244 -extern atomic_t cm_connecteds;
32245 -extern atomic_t cm_connect_reqs;
32246 -extern atomic_t cm_rejects;
32247 -extern atomic_t mod_qp_timouts;
32248 -extern atomic_t qps_created;
32249 -extern atomic_t qps_destroyed;
32250 -extern atomic_t sw_qps_destroyed;
32251 +extern atomic_unchecked_t cm_connects;
32252 +extern atomic_unchecked_t cm_accepts;
32253 +extern atomic_unchecked_t cm_disconnects;
32254 +extern atomic_unchecked_t cm_closes;
32255 +extern atomic_unchecked_t cm_connecteds;
32256 +extern atomic_unchecked_t cm_connect_reqs;
32257 +extern atomic_unchecked_t cm_rejects;
32258 +extern atomic_unchecked_t mod_qp_timouts;
32259 +extern atomic_unchecked_t qps_created;
32260 +extern atomic_unchecked_t qps_destroyed;
32261 +extern atomic_unchecked_t sw_qps_destroyed;
32262 extern u32 mh_detected;
32263 extern u32 mh_pauses_sent;
32264 extern u32 cm_packets_sent;
32265 @@ -197,16 +197,16 @@ extern u32 cm_packets_created;
32266 extern u32 cm_packets_received;
32267 extern u32 cm_packets_dropped;
32268 extern u32 cm_packets_retrans;
32269 -extern atomic_t cm_listens_created;
32270 -extern atomic_t cm_listens_destroyed;
32271 +extern atomic_unchecked_t cm_listens_created;
32272 +extern atomic_unchecked_t cm_listens_destroyed;
32273 extern u32 cm_backlog_drops;
32274 -extern atomic_t cm_loopbacks;
32275 -extern atomic_t cm_nodes_created;
32276 -extern atomic_t cm_nodes_destroyed;
32277 -extern atomic_t cm_accel_dropped_pkts;
32278 -extern atomic_t cm_resets_recvd;
32279 -extern atomic_t pau_qps_created;
32280 -extern atomic_t pau_qps_destroyed;
32281 +extern atomic_unchecked_t cm_loopbacks;
32282 +extern atomic_unchecked_t cm_nodes_created;
32283 +extern atomic_unchecked_t cm_nodes_destroyed;
32284 +extern atomic_unchecked_t cm_accel_dropped_pkts;
32285 +extern atomic_unchecked_t cm_resets_recvd;
32286 +extern atomic_unchecked_t pau_qps_created;
32287 +extern atomic_unchecked_t pau_qps_destroyed;
32288
32289 extern u32 int_mod_timer_init;
32290 extern u32 int_mod_cq_depth_256;
32291 diff --git a/drivers/infiniband/hw/nes/nes_cm.c b/drivers/infiniband/hw/nes/nes_cm.c
32292 index 020e95c..fbb3450 100644
32293 --- a/drivers/infiniband/hw/nes/nes_cm.c
32294 +++ b/drivers/infiniband/hw/nes/nes_cm.c
32295 @@ -68,14 +68,14 @@ u32 cm_packets_dropped;
32296 u32 cm_packets_retrans;
32297 u32 cm_packets_created;
32298 u32 cm_packets_received;
32299 -atomic_t cm_listens_created;
32300 -atomic_t cm_listens_destroyed;
32301 +atomic_unchecked_t cm_listens_created;
32302 +atomic_unchecked_t cm_listens_destroyed;
32303 u32 cm_backlog_drops;
32304 -atomic_t cm_loopbacks;
32305 -atomic_t cm_nodes_created;
32306 -atomic_t cm_nodes_destroyed;
32307 -atomic_t cm_accel_dropped_pkts;
32308 -atomic_t cm_resets_recvd;
32309 +atomic_unchecked_t cm_loopbacks;
32310 +atomic_unchecked_t cm_nodes_created;
32311 +atomic_unchecked_t cm_nodes_destroyed;
32312 +atomic_unchecked_t cm_accel_dropped_pkts;
32313 +atomic_unchecked_t cm_resets_recvd;
32314
32315 static inline int mini_cm_accelerated(struct nes_cm_core *, struct nes_cm_node *);
32316 static struct nes_cm_listener *mini_cm_listen(struct nes_cm_core *, struct nes_vnic *, struct nes_cm_info *);
32317 @@ -148,13 +148,13 @@ static struct nes_cm_ops nes_cm_api = {
32318
32319 static struct nes_cm_core *g_cm_core;
32320
32321 -atomic_t cm_connects;
32322 -atomic_t cm_accepts;
32323 -atomic_t cm_disconnects;
32324 -atomic_t cm_closes;
32325 -atomic_t cm_connecteds;
32326 -atomic_t cm_connect_reqs;
32327 -atomic_t cm_rejects;
32328 +atomic_unchecked_t cm_connects;
32329 +atomic_unchecked_t cm_accepts;
32330 +atomic_unchecked_t cm_disconnects;
32331 +atomic_unchecked_t cm_closes;
32332 +atomic_unchecked_t cm_connecteds;
32333 +atomic_unchecked_t cm_connect_reqs;
32334 +atomic_unchecked_t cm_rejects;
32335
32336 int nes_add_ref_cm_node(struct nes_cm_node *cm_node)
32337 {
32338 @@ -1279,7 +1279,7 @@ static int mini_cm_dec_refcnt_listen(struct nes_cm_core *cm_core,
32339 kfree(listener);
32340 listener = NULL;
32341 ret = 0;
32342 - atomic_inc(&cm_listens_destroyed);
32343 + atomic_inc_unchecked(&cm_listens_destroyed);
32344 } else {
32345 spin_unlock_irqrestore(&cm_core->listen_list_lock, flags);
32346 }
32347 @@ -1482,7 +1482,7 @@ static struct nes_cm_node *make_cm_node(struct nes_cm_core *cm_core,
32348 cm_node->rem_mac);
32349
32350 add_hte_node(cm_core, cm_node);
32351 - atomic_inc(&cm_nodes_created);
32352 + atomic_inc_unchecked(&cm_nodes_created);
32353
32354 return cm_node;
32355 }
32356 @@ -1540,7 +1540,7 @@ static int rem_ref_cm_node(struct nes_cm_core *cm_core,
32357 }
32358
32359 atomic_dec(&cm_core->node_cnt);
32360 - atomic_inc(&cm_nodes_destroyed);
32361 + atomic_inc_unchecked(&cm_nodes_destroyed);
32362 nesqp = cm_node->nesqp;
32363 if (nesqp) {
32364 nesqp->cm_node = NULL;
32365 @@ -1604,7 +1604,7 @@ static int process_options(struct nes_cm_node *cm_node, u8 *optionsloc,
32366
32367 static void drop_packet(struct sk_buff *skb)
32368 {
32369 - atomic_inc(&cm_accel_dropped_pkts);
32370 + atomic_inc_unchecked(&cm_accel_dropped_pkts);
32371 dev_kfree_skb_any(skb);
32372 }
32373
32374 @@ -1667,7 +1667,7 @@ static void handle_rst_pkt(struct nes_cm_node *cm_node, struct sk_buff *skb,
32375 {
32376
32377 int reset = 0; /* whether to send reset in case of err.. */
32378 - atomic_inc(&cm_resets_recvd);
32379 + atomic_inc_unchecked(&cm_resets_recvd);
32380 nes_debug(NES_DBG_CM, "Received Reset, cm_node = %p, state = %u."
32381 " refcnt=%d\n", cm_node, cm_node->state,
32382 atomic_read(&cm_node->ref_count));
32383 @@ -2308,7 +2308,7 @@ static struct nes_cm_node *mini_cm_connect(struct nes_cm_core *cm_core,
32384 rem_ref_cm_node(cm_node->cm_core, cm_node);
32385 return NULL;
32386 }
32387 - atomic_inc(&cm_loopbacks);
32388 + atomic_inc_unchecked(&cm_loopbacks);
32389 loopbackremotenode->loopbackpartner = cm_node;
32390 loopbackremotenode->tcp_cntxt.rcv_wscale =
32391 NES_CM_DEFAULT_RCV_WND_SCALE;
32392 @@ -2583,7 +2583,7 @@ static int mini_cm_recv_pkt(struct nes_cm_core *cm_core,
32393 nes_queue_mgt_skbs(skb, nesvnic, cm_node->nesqp);
32394 else {
32395 rem_ref_cm_node(cm_core, cm_node);
32396 - atomic_inc(&cm_accel_dropped_pkts);
32397 + atomic_inc_unchecked(&cm_accel_dropped_pkts);
32398 dev_kfree_skb_any(skb);
32399 }
32400 break;
32401 @@ -2891,7 +2891,7 @@ static int nes_cm_disconn_true(struct nes_qp *nesqp)
32402
32403 if ((cm_id) && (cm_id->event_handler)) {
32404 if (issue_disconn) {
32405 - atomic_inc(&cm_disconnects);
32406 + atomic_inc_unchecked(&cm_disconnects);
32407 cm_event.event = IW_CM_EVENT_DISCONNECT;
32408 cm_event.status = disconn_status;
32409 cm_event.local_addr = cm_id->local_addr;
32410 @@ -2913,7 +2913,7 @@ static int nes_cm_disconn_true(struct nes_qp *nesqp)
32411 }
32412
32413 if (issue_close) {
32414 - atomic_inc(&cm_closes);
32415 + atomic_inc_unchecked(&cm_closes);
32416 nes_disconnect(nesqp, 1);
32417
32418 cm_id->provider_data = nesqp;
32419 @@ -3049,7 +3049,7 @@ int nes_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
32420
32421 nes_debug(NES_DBG_CM, "QP%u, cm_node=%p, jiffies = %lu listener = %p\n",
32422 nesqp->hwqp.qp_id, cm_node, jiffies, cm_node->listener);
32423 - atomic_inc(&cm_accepts);
32424 + atomic_inc_unchecked(&cm_accepts);
32425
32426 nes_debug(NES_DBG_CM, "netdev refcnt = %u.\n",
32427 netdev_refcnt_read(nesvnic->netdev));
32428 @@ -3251,7 +3251,7 @@ int nes_reject(struct iw_cm_id *cm_id, const void *pdata, u8 pdata_len)
32429 struct nes_cm_core *cm_core;
32430 u8 *start_buff;
32431
32432 - atomic_inc(&cm_rejects);
32433 + atomic_inc_unchecked(&cm_rejects);
32434 cm_node = (struct nes_cm_node *)cm_id->provider_data;
32435 loopback = cm_node->loopbackpartner;
32436 cm_core = cm_node->cm_core;
32437 @@ -3311,7 +3311,7 @@ int nes_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
32438 ntohl(cm_id->local_addr.sin_addr.s_addr),
32439 ntohs(cm_id->local_addr.sin_port));
32440
32441 - atomic_inc(&cm_connects);
32442 + atomic_inc_unchecked(&cm_connects);
32443 nesqp->active_conn = 1;
32444
32445 /* cache the cm_id in the qp */
32446 @@ -3421,7 +3421,7 @@ int nes_create_listen(struct iw_cm_id *cm_id, int backlog)
32447 g_cm_core->api->stop_listener(g_cm_core, (void *)cm_node);
32448 return err;
32449 }
32450 - atomic_inc(&cm_listens_created);
32451 + atomic_inc_unchecked(&cm_listens_created);
32452 }
32453
32454 cm_id->add_ref(cm_id);
32455 @@ -3522,7 +3522,7 @@ static void cm_event_connected(struct nes_cm_event *event)
32456
32457 if (nesqp->destroyed)
32458 return;
32459 - atomic_inc(&cm_connecteds);
32460 + atomic_inc_unchecked(&cm_connecteds);
32461 nes_debug(NES_DBG_CM, "QP%u attempting to connect to 0x%08X:0x%04X on"
32462 " local port 0x%04X. jiffies = %lu.\n",
32463 nesqp->hwqp.qp_id,
32464 @@ -3709,7 +3709,7 @@ static void cm_event_reset(struct nes_cm_event *event)
32465
32466 cm_id->add_ref(cm_id);
32467 ret = cm_id->event_handler(cm_id, &cm_event);
32468 - atomic_inc(&cm_closes);
32469 + atomic_inc_unchecked(&cm_closes);
32470 cm_event.event = IW_CM_EVENT_CLOSE;
32471 cm_event.status = 0;
32472 cm_event.provider_data = cm_id->provider_data;
32473 @@ -3745,7 +3745,7 @@ static void cm_event_mpa_req(struct nes_cm_event *event)
32474 return;
32475 cm_id = cm_node->cm_id;
32476
32477 - atomic_inc(&cm_connect_reqs);
32478 + atomic_inc_unchecked(&cm_connect_reqs);
32479 nes_debug(NES_DBG_CM, "cm_node = %p - cm_id = %p, jiffies = %lu\n",
32480 cm_node, cm_id, jiffies);
32481
32482 @@ -3785,7 +3785,7 @@ static void cm_event_mpa_reject(struct nes_cm_event *event)
32483 return;
32484 cm_id = cm_node->cm_id;
32485
32486 - atomic_inc(&cm_connect_reqs);
32487 + atomic_inc_unchecked(&cm_connect_reqs);
32488 nes_debug(NES_DBG_CM, "cm_node = %p - cm_id = %p, jiffies = %lu\n",
32489 cm_node, cm_id, jiffies);
32490
32491 diff --git a/drivers/infiniband/hw/nes/nes_mgt.c b/drivers/infiniband/hw/nes/nes_mgt.c
32492 index 3ba7be3..c81f6ff 100644
32493 --- a/drivers/infiniband/hw/nes/nes_mgt.c
32494 +++ b/drivers/infiniband/hw/nes/nes_mgt.c
32495 @@ -40,8 +40,8 @@
32496 #include "nes.h"
32497 #include "nes_mgt.h"
32498
32499 -atomic_t pau_qps_created;
32500 -atomic_t pau_qps_destroyed;
32501 +atomic_unchecked_t pau_qps_created;
32502 +atomic_unchecked_t pau_qps_destroyed;
32503
32504 static void nes_replenish_mgt_rq(struct nes_vnic_mgt *mgtvnic)
32505 {
32506 @@ -621,7 +621,7 @@ void nes_destroy_pau_qp(struct nes_device *nesdev, struct nes_qp *nesqp)
32507 {
32508 struct sk_buff *skb;
32509 unsigned long flags;
32510 - atomic_inc(&pau_qps_destroyed);
32511 + atomic_inc_unchecked(&pau_qps_destroyed);
32512
32513 /* Free packets that have not yet been forwarded */
32514 /* Lock is acquired by skb_dequeue when removing the skb */
32515 @@ -812,7 +812,7 @@ static void nes_mgt_ce_handler(struct nes_device *nesdev, struct nes_hw_nic_cq *
32516 cq->cq_vbase[head].cqe_words[NES_NIC_CQE_HASH_RCVNXT]);
32517 skb_queue_head_init(&nesqp->pau_list);
32518 spin_lock_init(&nesqp->pau_lock);
32519 - atomic_inc(&pau_qps_created);
32520 + atomic_inc_unchecked(&pau_qps_created);
32521 nes_change_quad_hash(nesdev, mgtvnic->nesvnic, nesqp);
32522 }
32523
32524 diff --git a/drivers/infiniband/hw/nes/nes_nic.c b/drivers/infiniband/hw/nes/nes_nic.c
32525 index f3a3ecf..57d311d 100644
32526 --- a/drivers/infiniband/hw/nes/nes_nic.c
32527 +++ b/drivers/infiniband/hw/nes/nes_nic.c
32528 @@ -1277,39 +1277,39 @@ static void nes_netdev_get_ethtool_stats(struct net_device *netdev,
32529 target_stat_values[++index] = mh_detected;
32530 target_stat_values[++index] = mh_pauses_sent;
32531 target_stat_values[++index] = nesvnic->endnode_ipv4_tcp_retransmits;
32532 - target_stat_values[++index] = atomic_read(&cm_connects);
32533 - target_stat_values[++index] = atomic_read(&cm_accepts);
32534 - target_stat_values[++index] = atomic_read(&cm_disconnects);
32535 - target_stat_values[++index] = atomic_read(&cm_connecteds);
32536 - target_stat_values[++index] = atomic_read(&cm_connect_reqs);
32537 - target_stat_values[++index] = atomic_read(&cm_rejects);
32538 - target_stat_values[++index] = atomic_read(&mod_qp_timouts);
32539 - target_stat_values[++index] = atomic_read(&qps_created);
32540 - target_stat_values[++index] = atomic_read(&sw_qps_destroyed);
32541 - target_stat_values[++index] = atomic_read(&qps_destroyed);
32542 - target_stat_values[++index] = atomic_read(&cm_closes);
32543 + target_stat_values[++index] = atomic_read_unchecked(&cm_connects);
32544 + target_stat_values[++index] = atomic_read_unchecked(&cm_accepts);
32545 + target_stat_values[++index] = atomic_read_unchecked(&cm_disconnects);
32546 + target_stat_values[++index] = atomic_read_unchecked(&cm_connecteds);
32547 + target_stat_values[++index] = atomic_read_unchecked(&cm_connect_reqs);
32548 + target_stat_values[++index] = atomic_read_unchecked(&cm_rejects);
32549 + target_stat_values[++index] = atomic_read_unchecked(&mod_qp_timouts);
32550 + target_stat_values[++index] = atomic_read_unchecked(&qps_created);
32551 + target_stat_values[++index] = atomic_read_unchecked(&sw_qps_destroyed);
32552 + target_stat_values[++index] = atomic_read_unchecked(&qps_destroyed);
32553 + target_stat_values[++index] = atomic_read_unchecked(&cm_closes);
32554 target_stat_values[++index] = cm_packets_sent;
32555 target_stat_values[++index] = cm_packets_bounced;
32556 target_stat_values[++index] = cm_packets_created;
32557 target_stat_values[++index] = cm_packets_received;
32558 target_stat_values[++index] = cm_packets_dropped;
32559 target_stat_values[++index] = cm_packets_retrans;
32560 - target_stat_values[++index] = atomic_read(&cm_listens_created);
32561 - target_stat_values[++index] = atomic_read(&cm_listens_destroyed);
32562 + target_stat_values[++index] = atomic_read_unchecked(&cm_listens_created);
32563 + target_stat_values[++index] = atomic_read_unchecked(&cm_listens_destroyed);
32564 target_stat_values[++index] = cm_backlog_drops;
32565 - target_stat_values[++index] = atomic_read(&cm_loopbacks);
32566 - target_stat_values[++index] = atomic_read(&cm_nodes_created);
32567 - target_stat_values[++index] = atomic_read(&cm_nodes_destroyed);
32568 - target_stat_values[++index] = atomic_read(&cm_accel_dropped_pkts);
32569 - target_stat_values[++index] = atomic_read(&cm_resets_recvd);
32570 + target_stat_values[++index] = atomic_read_unchecked(&cm_loopbacks);
32571 + target_stat_values[++index] = atomic_read_unchecked(&cm_nodes_created);
32572 + target_stat_values[++index] = atomic_read_unchecked(&cm_nodes_destroyed);
32573 + target_stat_values[++index] = atomic_read_unchecked(&cm_accel_dropped_pkts);
32574 + target_stat_values[++index] = atomic_read_unchecked(&cm_resets_recvd);
32575 target_stat_values[++index] = nesadapter->free_4kpbl;
32576 target_stat_values[++index] = nesadapter->free_256pbl;
32577 target_stat_values[++index] = int_mod_timer_init;
32578 target_stat_values[++index] = nesvnic->lro_mgr.stats.aggregated;
32579 target_stat_values[++index] = nesvnic->lro_mgr.stats.flushed;
32580 target_stat_values[++index] = nesvnic->lro_mgr.stats.no_desc;
32581 - target_stat_values[++index] = atomic_read(&pau_qps_created);
32582 - target_stat_values[++index] = atomic_read(&pau_qps_destroyed);
32583 + target_stat_values[++index] = atomic_read_unchecked(&pau_qps_created);
32584 + target_stat_values[++index] = atomic_read_unchecked(&pau_qps_destroyed);
32585 }
32586
32587 /**
32588 diff --git a/drivers/infiniband/hw/nes/nes_verbs.c b/drivers/infiniband/hw/nes/nes_verbs.c
32589 index 8b8812d..a5e1133 100644
32590 --- a/drivers/infiniband/hw/nes/nes_verbs.c
32591 +++ b/drivers/infiniband/hw/nes/nes_verbs.c
32592 @@ -46,9 +46,9 @@
32593
32594 #include <rdma/ib_umem.h>
32595
32596 -atomic_t mod_qp_timouts;
32597 -atomic_t qps_created;
32598 -atomic_t sw_qps_destroyed;
32599 +atomic_unchecked_t mod_qp_timouts;
32600 +atomic_unchecked_t qps_created;
32601 +atomic_unchecked_t sw_qps_destroyed;
32602
32603 static void nes_unregister_ofa_device(struct nes_ib_device *nesibdev);
32604
32605 @@ -1131,7 +1131,7 @@ static struct ib_qp *nes_create_qp(struct ib_pd *ibpd,
32606 if (init_attr->create_flags)
32607 return ERR_PTR(-EINVAL);
32608
32609 - atomic_inc(&qps_created);
32610 + atomic_inc_unchecked(&qps_created);
32611 switch (init_attr->qp_type) {
32612 case IB_QPT_RC:
32613 if (nes_drv_opt & NES_DRV_OPT_NO_INLINE_DATA) {
32614 @@ -1460,7 +1460,7 @@ static int nes_destroy_qp(struct ib_qp *ibqp)
32615 struct iw_cm_event cm_event;
32616 int ret = 0;
32617
32618 - atomic_inc(&sw_qps_destroyed);
32619 + atomic_inc_unchecked(&sw_qps_destroyed);
32620 nesqp->destroyed = 1;
32621
32622 /* Blow away the connection if it exists. */
32623 diff --git a/drivers/infiniband/hw/qib/qib.h b/drivers/infiniband/hw/qib/qib.h
32624 index 7e62f41..4c2b8e2 100644
32625 --- a/drivers/infiniband/hw/qib/qib.h
32626 +++ b/drivers/infiniband/hw/qib/qib.h
32627 @@ -51,6 +51,7 @@
32628 #include <linux/completion.h>
32629 #include <linux/kref.h>
32630 #include <linux/sched.h>
32631 +#include <linux/slab.h>
32632
32633 #include "qib_common.h"
32634 #include "qib_verbs.h"
32635 diff --git a/drivers/input/gameport/gameport.c b/drivers/input/gameport/gameport.c
32636 index da739d9..da1c7f4 100644
32637 --- a/drivers/input/gameport/gameport.c
32638 +++ b/drivers/input/gameport/gameport.c
32639 @@ -487,14 +487,14 @@ EXPORT_SYMBOL(gameport_set_phys);
32640 */
32641 static void gameport_init_port(struct gameport *gameport)
32642 {
32643 - static atomic_t gameport_no = ATOMIC_INIT(0);
32644 + static atomic_unchecked_t gameport_no = ATOMIC_INIT(0);
32645
32646 __module_get(THIS_MODULE);
32647
32648 mutex_init(&gameport->drv_mutex);
32649 device_initialize(&gameport->dev);
32650 dev_set_name(&gameport->dev, "gameport%lu",
32651 - (unsigned long)atomic_inc_return(&gameport_no) - 1);
32652 + (unsigned long)atomic_inc_return_unchecked(&gameport_no) - 1);
32653 gameport->dev.bus = &gameport_bus;
32654 gameport->dev.release = gameport_release_port;
32655 if (gameport->parent)
32656 diff --git a/drivers/input/input.c b/drivers/input/input.c
32657 index 8921c61..f5cd63d 100644
32658 --- a/drivers/input/input.c
32659 +++ b/drivers/input/input.c
32660 @@ -1814,7 +1814,7 @@ static void input_cleanse_bitmasks(struct input_dev *dev)
32661 */
32662 int input_register_device(struct input_dev *dev)
32663 {
32664 - static atomic_t input_no = ATOMIC_INIT(0);
32665 + static atomic_unchecked_t input_no = ATOMIC_INIT(0);
32666 struct input_handler *handler;
32667 const char *path;
32668 int error;
32669 @@ -1851,7 +1851,7 @@ int input_register_device(struct input_dev *dev)
32670 dev->setkeycode = input_default_setkeycode;
32671
32672 dev_set_name(&dev->dev, "input%ld",
32673 - (unsigned long) atomic_inc_return(&input_no) - 1);
32674 + (unsigned long) atomic_inc_return_unchecked(&input_no) - 1);
32675
32676 error = device_add(&dev->dev);
32677 if (error)
32678 diff --git a/drivers/input/joystick/sidewinder.c b/drivers/input/joystick/sidewinder.c
32679 index 04c69af..5f92d00 100644
32680 --- a/drivers/input/joystick/sidewinder.c
32681 +++ b/drivers/input/joystick/sidewinder.c
32682 @@ -30,6 +30,7 @@
32683 #include <linux/kernel.h>
32684 #include <linux/module.h>
32685 #include <linux/slab.h>
32686 +#include <linux/sched.h>
32687 #include <linux/init.h>
32688 #include <linux/input.h>
32689 #include <linux/gameport.h>
32690 diff --git a/drivers/input/joystick/xpad.c b/drivers/input/joystick/xpad.c
32691 index 83811e4..0822b90 100644
32692 --- a/drivers/input/joystick/xpad.c
32693 +++ b/drivers/input/joystick/xpad.c
32694 @@ -726,7 +726,7 @@ static void xpad_led_set(struct led_classdev *led_cdev,
32695
32696 static int xpad_led_probe(struct usb_xpad *xpad)
32697 {
32698 - static atomic_t led_seq = ATOMIC_INIT(0);
32699 + static atomic_unchecked_t led_seq = ATOMIC_INIT(0);
32700 long led_no;
32701 struct xpad_led *led;
32702 struct led_classdev *led_cdev;
32703 @@ -739,7 +739,7 @@ static int xpad_led_probe(struct usb_xpad *xpad)
32704 if (!led)
32705 return -ENOMEM;
32706
32707 - led_no = (long)atomic_inc_return(&led_seq) - 1;
32708 + led_no = (long)atomic_inc_return_unchecked(&led_seq) - 1;
32709
32710 snprintf(led->name, sizeof(led->name), "xpad%ld", led_no);
32711 led->xpad = xpad;
32712 diff --git a/drivers/input/mousedev.c b/drivers/input/mousedev.c
32713 index 0110b5a..d3ad144 100644
32714 --- a/drivers/input/mousedev.c
32715 +++ b/drivers/input/mousedev.c
32716 @@ -763,7 +763,7 @@ static ssize_t mousedev_read(struct file *file, char __user *buffer,
32717
32718 spin_unlock_irq(&client->packet_lock);
32719
32720 - if (copy_to_user(buffer, data, count))
32721 + if (count > sizeof(data) || copy_to_user(buffer, data, count))
32722 return -EFAULT;
32723
32724 return count;
32725 diff --git a/drivers/input/serio/serio.c b/drivers/input/serio/serio.c
32726 index d0f7533..fb8215b 100644
32727 --- a/drivers/input/serio/serio.c
32728 +++ b/drivers/input/serio/serio.c
32729 @@ -496,7 +496,7 @@ static void serio_release_port(struct device *dev)
32730 */
32731 static void serio_init_port(struct serio *serio)
32732 {
32733 - static atomic_t serio_no = ATOMIC_INIT(0);
32734 + static atomic_unchecked_t serio_no = ATOMIC_INIT(0);
32735
32736 __module_get(THIS_MODULE);
32737
32738 @@ -507,7 +507,7 @@ static void serio_init_port(struct serio *serio)
32739 mutex_init(&serio->drv_mutex);
32740 device_initialize(&serio->dev);
32741 dev_set_name(&serio->dev, "serio%ld",
32742 - (long)atomic_inc_return(&serio_no) - 1);
32743 + (long)atomic_inc_return_unchecked(&serio_no) - 1);
32744 serio->dev.bus = &serio_bus;
32745 serio->dev.release = serio_release_port;
32746 serio->dev.groups = serio_device_attr_groups;
32747 diff --git a/drivers/isdn/capi/capi.c b/drivers/isdn/capi/capi.c
32748 index 38c4bd8..58965d9 100644
32749 --- a/drivers/isdn/capi/capi.c
32750 +++ b/drivers/isdn/capi/capi.c
32751 @@ -83,8 +83,8 @@ struct capiminor {
32752
32753 struct capi20_appl *ap;
32754 u32 ncci;
32755 - atomic_t datahandle;
32756 - atomic_t msgid;
32757 + atomic_unchecked_t datahandle;
32758 + atomic_unchecked_t msgid;
32759
32760 struct tty_port port;
32761 int ttyinstop;
32762 @@ -392,7 +392,7 @@ gen_data_b3_resp_for(struct capiminor *mp, struct sk_buff *skb)
32763 capimsg_setu16(s, 2, mp->ap->applid);
32764 capimsg_setu8 (s, 4, CAPI_DATA_B3);
32765 capimsg_setu8 (s, 5, CAPI_RESP);
32766 - capimsg_setu16(s, 6, atomic_inc_return(&mp->msgid));
32767 + capimsg_setu16(s, 6, atomic_inc_return_unchecked(&mp->msgid));
32768 capimsg_setu32(s, 8, mp->ncci);
32769 capimsg_setu16(s, 12, datahandle);
32770 }
32771 @@ -513,14 +513,14 @@ static void handle_minor_send(struct capiminor *mp)
32772 mp->outbytes -= len;
32773 spin_unlock_bh(&mp->outlock);
32774
32775 - datahandle = atomic_inc_return(&mp->datahandle);
32776 + datahandle = atomic_inc_return_unchecked(&mp->datahandle);
32777 skb_push(skb, CAPI_DATA_B3_REQ_LEN);
32778 memset(skb->data, 0, CAPI_DATA_B3_REQ_LEN);
32779 capimsg_setu16(skb->data, 0, CAPI_DATA_B3_REQ_LEN);
32780 capimsg_setu16(skb->data, 2, mp->ap->applid);
32781 capimsg_setu8 (skb->data, 4, CAPI_DATA_B3);
32782 capimsg_setu8 (skb->data, 5, CAPI_REQ);
32783 - capimsg_setu16(skb->data, 6, atomic_inc_return(&mp->msgid));
32784 + capimsg_setu16(skb->data, 6, atomic_inc_return_unchecked(&mp->msgid));
32785 capimsg_setu32(skb->data, 8, mp->ncci); /* NCCI */
32786 capimsg_setu32(skb->data, 12, (u32)(long)skb->data);/* Data32 */
32787 capimsg_setu16(skb->data, 16, len); /* Data length */
32788 diff --git a/drivers/isdn/gigaset/interface.c b/drivers/isdn/gigaset/interface.c
32789 index a6d9fd2..afdb8a3 100644
32790 --- a/drivers/isdn/gigaset/interface.c
32791 +++ b/drivers/isdn/gigaset/interface.c
32792 @@ -160,9 +160,9 @@ static int if_open(struct tty_struct *tty, struct file *filp)
32793 }
32794 tty->driver_data = cs;
32795
32796 - ++cs->port.count;
32797 + atomic_inc(&cs->port.count);
32798
32799 - if (cs->port.count == 1) {
32800 + if (atomic_read(&cs->port.count) == 1) {
32801 tty_port_tty_set(&cs->port, tty);
32802 tty->low_latency = 1;
32803 }
32804 @@ -186,9 +186,9 @@ static void if_close(struct tty_struct *tty, struct file *filp)
32805
32806 if (!cs->connected)
32807 gig_dbg(DEBUG_IF, "not connected"); /* nothing to do */
32808 - else if (!cs->port.count)
32809 + else if (!atomic_read(&cs->port.count))
32810 dev_warn(cs->dev, "%s: device not opened\n", __func__);
32811 - else if (!--cs->port.count)
32812 + else if (!atomic_dec_return(&cs->port.count))
32813 tty_port_tty_set(&cs->port, NULL);
32814
32815 mutex_unlock(&cs->mutex);
32816 diff --git a/drivers/isdn/hardware/avm/b1.c b/drivers/isdn/hardware/avm/b1.c
32817 index 821f7ac..28d4030 100644
32818 --- a/drivers/isdn/hardware/avm/b1.c
32819 +++ b/drivers/isdn/hardware/avm/b1.c
32820 @@ -176,7 +176,7 @@ int b1_load_t4file(avmcard *card, capiloaddatapart *t4file)
32821 }
32822 if (left) {
32823 if (t4file->user) {
32824 - if (copy_from_user(buf, dp, left))
32825 + if (left > sizeof buf || copy_from_user(buf, dp, left))
32826 return -EFAULT;
32827 } else {
32828 memcpy(buf, dp, left);
32829 @@ -224,7 +224,7 @@ int b1_load_config(avmcard *card, capiloaddatapart *config)
32830 }
32831 if (left) {
32832 if (config->user) {
32833 - if (copy_from_user(buf, dp, left))
32834 + if (left > sizeof buf || copy_from_user(buf, dp, left))
32835 return -EFAULT;
32836 } else {
32837 memcpy(buf, dp, left);
32838 diff --git a/drivers/isdn/hardware/eicon/divasync.h b/drivers/isdn/hardware/eicon/divasync.h
32839 index dd6b53a..19d9ee6 100644
32840 --- a/drivers/isdn/hardware/eicon/divasync.h
32841 +++ b/drivers/isdn/hardware/eicon/divasync.h
32842 @@ -146,7 +146,7 @@ typedef struct _diva_didd_add_adapter {
32843 } diva_didd_add_adapter_t;
32844 typedef struct _diva_didd_remove_adapter {
32845 IDI_CALL p_request;
32846 -} diva_didd_remove_adapter_t;
32847 +} __no_const diva_didd_remove_adapter_t;
32848 typedef struct _diva_didd_read_adapter_array {
32849 void *buffer;
32850 dword length;
32851 diff --git a/drivers/isdn/hardware/eicon/xdi_adapter.h b/drivers/isdn/hardware/eicon/xdi_adapter.h
32852 index d303e65..28bcb7b 100644
32853 --- a/drivers/isdn/hardware/eicon/xdi_adapter.h
32854 +++ b/drivers/isdn/hardware/eicon/xdi_adapter.h
32855 @@ -44,7 +44,7 @@ typedef struct _xdi_mbox_t {
32856 typedef struct _diva_os_idi_adapter_interface {
32857 diva_init_card_proc_t cleanup_adapter_proc;
32858 diva_cmd_card_proc_t cmd_proc;
32859 -} diva_os_idi_adapter_interface_t;
32860 +} __no_const diva_os_idi_adapter_interface_t;
32861
32862 typedef struct _diva_os_xdi_adapter {
32863 struct list_head link;
32864 diff --git a/drivers/isdn/i4l/isdn_tty.c b/drivers/isdn/i4l/isdn_tty.c
32865 index 7bc5067..fd36232 100644
32866 --- a/drivers/isdn/i4l/isdn_tty.c
32867 +++ b/drivers/isdn/i4l/isdn_tty.c
32868 @@ -1505,9 +1505,9 @@ isdn_tty_open(struct tty_struct *tty, struct file *filp)
32869 port = &info->port;
32870 #ifdef ISDN_DEBUG_MODEM_OPEN
32871 printk(KERN_DEBUG "isdn_tty_open %s, count = %d\n", tty->name,
32872 - port->count);
32873 + atomic_read(&port->count))
32874 #endif
32875 - port->count++;
32876 + atomic_inc(&port->count);
32877 tty->driver_data = info;
32878 port->tty = tty;
32879 tty->port = port;
32880 @@ -1553,7 +1553,7 @@ isdn_tty_close(struct tty_struct *tty, struct file *filp)
32881 #endif
32882 return;
32883 }
32884 - if ((tty->count == 1) && (port->count != 1)) {
32885 + if ((tty->count == 1) && (atomic_read(&port->count) != 1)) {
32886 /*
32887 * Uh, oh. tty->count is 1, which means that the tty
32888 * structure will be freed. Info->count should always
32889 @@ -1562,15 +1562,15 @@ isdn_tty_close(struct tty_struct *tty, struct file *filp)
32890 * serial port won't be shutdown.
32891 */
32892 printk(KERN_ERR "isdn_tty_close: bad port count; tty->count is 1, "
32893 - "info->count is %d\n", port->count);
32894 - port->count = 1;
32895 + "info->count is %d\n", atomic_read(&port->count));
32896 + atomic_set(&port->count, 1);
32897 }
32898 - if (--port->count < 0) {
32899 + if (atomic_dec_return(&port->count) < 0) {
32900 printk(KERN_ERR "isdn_tty_close: bad port count for ttyi%d: %d\n",
32901 - info->line, port->count);
32902 - port->count = 0;
32903 + info->line, atomic_read(&port->count));
32904 + atomic_set(&port->count, 0);
32905 }
32906 - if (port->count) {
32907 + if (atomic_read(&port->count)) {
32908 #ifdef ISDN_DEBUG_MODEM_OPEN
32909 printk(KERN_DEBUG "isdn_tty_close after info->count != 0\n");
32910 #endif
32911 @@ -1624,7 +1624,7 @@ isdn_tty_hangup(struct tty_struct *tty)
32912 if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_hangup"))
32913 return;
32914 isdn_tty_shutdown(info);
32915 - port->count = 0;
32916 + atomic_set(&port->count, 0);
32917 port->flags &= ~ASYNC_NORMAL_ACTIVE;
32918 port->tty = NULL;
32919 wake_up_interruptible(&port->open_wait);
32920 @@ -1964,7 +1964,7 @@ isdn_tty_find_icall(int di, int ch, setup_parm *setup)
32921 for (i = 0; i < ISDN_MAX_CHANNELS; i++) {
32922 modem_info *info = &dev->mdm.info[i];
32923
32924 - if (info->port.count == 0)
32925 + if (atomic_read(&info->port.count) == 0)
32926 continue;
32927 if ((info->emu.mdmreg[REG_SI1] & si2bit[si1]) && /* SI1 is matching */
32928 (info->emu.mdmreg[REG_SI2] == si2)) { /* SI2 is matching */
32929 diff --git a/drivers/isdn/icn/icn.c b/drivers/isdn/icn/icn.c
32930 index e74df7c..03a03ba 100644
32931 --- a/drivers/isdn/icn/icn.c
32932 +++ b/drivers/isdn/icn/icn.c
32933 @@ -1045,7 +1045,7 @@ icn_writecmd(const u_char *buf, int len, int user, icn_card *card)
32934 if (count > len)
32935 count = len;
32936 if (user) {
32937 - if (copy_from_user(msg, buf, count))
32938 + if (count > sizeof msg || copy_from_user(msg, buf, count))
32939 return -EFAULT;
32940 } else
32941 memcpy(msg, buf, count);
32942 diff --git a/drivers/lguest/core.c b/drivers/lguest/core.c
32943 index b5fdcb7..5b6c59f 100644
32944 --- a/drivers/lguest/core.c
32945 +++ b/drivers/lguest/core.c
32946 @@ -92,9 +92,17 @@ static __init int map_switcher(void)
32947 * it's worked so far. The end address needs +1 because __get_vm_area
32948 * allocates an extra guard page, so we need space for that.
32949 */
32950 +
32951 +#if defined(CONFIG_MODULES) && defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
32952 + switcher_vma = __get_vm_area(TOTAL_SWITCHER_PAGES * PAGE_SIZE,
32953 + VM_ALLOC | VM_KERNEXEC, SWITCHER_ADDR, SWITCHER_ADDR
32954 + + (TOTAL_SWITCHER_PAGES+1) * PAGE_SIZE);
32955 +#else
32956 switcher_vma = __get_vm_area(TOTAL_SWITCHER_PAGES * PAGE_SIZE,
32957 VM_ALLOC, SWITCHER_ADDR, SWITCHER_ADDR
32958 + (TOTAL_SWITCHER_PAGES+1) * PAGE_SIZE);
32959 +#endif
32960 +
32961 if (!switcher_vma) {
32962 err = -ENOMEM;
32963 printk("lguest: could not map switcher pages high\n");
32964 @@ -119,7 +127,7 @@ static __init int map_switcher(void)
32965 * Now the Switcher is mapped at the right address, we can't fail!
32966 * Copy in the compiled-in Switcher code (from x86/switcher_32.S).
32967 */
32968 - memcpy(switcher_vma->addr, start_switcher_text,
32969 + memcpy(switcher_vma->addr, ktla_ktva(start_switcher_text),
32970 end_switcher_text - start_switcher_text);
32971
32972 printk(KERN_INFO "lguest: mapped switcher at %p\n",
32973 diff --git a/drivers/lguest/x86/core.c b/drivers/lguest/x86/core.c
32974 index 39809035..ce25c5e 100644
32975 --- a/drivers/lguest/x86/core.c
32976 +++ b/drivers/lguest/x86/core.c
32977 @@ -59,7 +59,7 @@ static struct {
32978 /* Offset from where switcher.S was compiled to where we've copied it */
32979 static unsigned long switcher_offset(void)
32980 {
32981 - return SWITCHER_ADDR - (unsigned long)start_switcher_text;
32982 + return SWITCHER_ADDR - (unsigned long)ktla_ktva(start_switcher_text);
32983 }
32984
32985 /* This cpu's struct lguest_pages. */
32986 @@ -100,7 +100,13 @@ static void copy_in_guest_info(struct lg_cpu *cpu, struct lguest_pages *pages)
32987 * These copies are pretty cheap, so we do them unconditionally: */
32988 /* Save the current Host top-level page directory.
32989 */
32990 +
32991 +#ifdef CONFIG_PAX_PER_CPU_PGD
32992 + pages->state.host_cr3 = read_cr3();
32993 +#else
32994 pages->state.host_cr3 = __pa(current->mm->pgd);
32995 +#endif
32996 +
32997 /*
32998 * Set up the Guest's page tables to see this CPU's pages (and no
32999 * other CPU's pages).
33000 @@ -472,7 +478,7 @@ void __init lguest_arch_host_init(void)
33001 * compiled-in switcher code and the high-mapped copy we just made.
33002 */
33003 for (i = 0; i < IDT_ENTRIES; i++)
33004 - default_idt_entries[i] += switcher_offset();
33005 + default_idt_entries[i] = ktla_ktva(default_idt_entries[i]) + switcher_offset();
33006
33007 /*
33008 * Set up the Switcher's per-cpu areas.
33009 @@ -555,7 +561,7 @@ void __init lguest_arch_host_init(void)
33010 * it will be undisturbed when we switch. To change %cs and jump we
33011 * need this structure to feed to Intel's "lcall" instruction.
33012 */
33013 - lguest_entry.offset = (long)switch_to_guest + switcher_offset();
33014 + lguest_entry.offset = (long)ktla_ktva(switch_to_guest) + switcher_offset();
33015 lguest_entry.segment = LGUEST_CS;
33016
33017 /*
33018 diff --git a/drivers/lguest/x86/switcher_32.S b/drivers/lguest/x86/switcher_32.S
33019 index 40634b0..4f5855e 100644
33020 --- a/drivers/lguest/x86/switcher_32.S
33021 +++ b/drivers/lguest/x86/switcher_32.S
33022 @@ -87,6 +87,7 @@
33023 #include <asm/page.h>
33024 #include <asm/segment.h>
33025 #include <asm/lguest.h>
33026 +#include <asm/processor-flags.h>
33027
33028 // We mark the start of the code to copy
33029 // It's placed in .text tho it's never run here
33030 @@ -149,6 +150,13 @@ ENTRY(switch_to_guest)
33031 // Changes type when we load it: damn Intel!
33032 // For after we switch over our page tables
33033 // That entry will be read-only: we'd crash.
33034 +
33035 +#ifdef CONFIG_PAX_KERNEXEC
33036 + mov %cr0, %edx
33037 + xor $X86_CR0_WP, %edx
33038 + mov %edx, %cr0
33039 +#endif
33040 +
33041 movl $(GDT_ENTRY_TSS*8), %edx
33042 ltr %dx
33043
33044 @@ -157,9 +165,15 @@ ENTRY(switch_to_guest)
33045 // Let's clear it again for our return.
33046 // The GDT descriptor of the Host
33047 // Points to the table after two "size" bytes
33048 - movl (LGUEST_PAGES_host_gdt_desc+2)(%eax), %edx
33049 + movl (LGUEST_PAGES_host_gdt_desc+2)(%eax), %eax
33050 // Clear "used" from type field (byte 5, bit 2)
33051 - andb $0xFD, (GDT_ENTRY_TSS*8 + 5)(%edx)
33052 + andb $0xFD, (GDT_ENTRY_TSS*8 + 5)(%eax)
33053 +
33054 +#ifdef CONFIG_PAX_KERNEXEC
33055 + mov %cr0, %eax
33056 + xor $X86_CR0_WP, %eax
33057 + mov %eax, %cr0
33058 +#endif
33059
33060 // Once our page table's switched, the Guest is live!
33061 // The Host fades as we run this final step.
33062 @@ -295,13 +309,12 @@ deliver_to_host:
33063 // I consulted gcc, and it gave
33064 // These instructions, which I gladly credit:
33065 leal (%edx,%ebx,8), %eax
33066 - movzwl (%eax),%edx
33067 - movl 4(%eax), %eax
33068 - xorw %ax, %ax
33069 - orl %eax, %edx
33070 + movl 4(%eax), %edx
33071 + movw (%eax), %dx
33072 // Now the address of the handler's in %edx
33073 // We call it now: its "iret" drops us home.
33074 - jmp *%edx
33075 + ljmp $__KERNEL_CS, $1f
33076 +1: jmp *%edx
33077
33078 // Every interrupt can come to us here
33079 // But we must truly tell each apart.
33080 diff --git a/drivers/macintosh/macio_asic.c b/drivers/macintosh/macio_asic.c
33081 index 20e5c2c..9e849a9 100644
33082 --- a/drivers/macintosh/macio_asic.c
33083 +++ b/drivers/macintosh/macio_asic.c
33084 @@ -748,7 +748,7 @@ static void __devexit macio_pci_remove(struct pci_dev* pdev)
33085 * MacIO is matched against any Apple ID, it's probe() function
33086 * will then decide wether it applies or not
33087 */
33088 -static const struct pci_device_id __devinitdata pci_ids [] = { {
33089 +static const struct pci_device_id __devinitconst pci_ids [] = { {
33090 .vendor = PCI_VENDOR_ID_APPLE,
33091 .device = PCI_ANY_ID,
33092 .subvendor = PCI_ANY_ID,
33093 diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c
33094 index 15dbe03..743fc65 100644
33095 --- a/drivers/md/bitmap.c
33096 +++ b/drivers/md/bitmap.c
33097 @@ -1786,7 +1786,7 @@ void bitmap_status(struct seq_file *seq, struct bitmap *bitmap)
33098 chunk_kb ? "KB" : "B");
33099 if (bitmap->storage.file) {
33100 seq_printf(seq, ", file: ");
33101 - seq_path(seq, &bitmap->storage.file->f_path, " \t\n");
33102 + seq_path(seq, &bitmap->storage.file->f_path, " \t\n\\");
33103 }
33104
33105 seq_printf(seq, "\n");
33106 diff --git a/drivers/md/dm-ioctl.c b/drivers/md/dm-ioctl.c
33107 index a1a3e6d..1918bfc 100644
33108 --- a/drivers/md/dm-ioctl.c
33109 +++ b/drivers/md/dm-ioctl.c
33110 @@ -1590,7 +1590,7 @@ static int validate_params(uint cmd, struct dm_ioctl *param)
33111 cmd == DM_LIST_VERSIONS_CMD)
33112 return 0;
33113
33114 - if ((cmd == DM_DEV_CREATE_CMD)) {
33115 + if (cmd == DM_DEV_CREATE_CMD) {
33116 if (!*param->name) {
33117 DMWARN("name not supplied when creating device");
33118 return -EINVAL;
33119 diff --git a/drivers/md/dm-raid1.c b/drivers/md/dm-raid1.c
33120 index b58b7a3..8018b19 100644
33121 --- a/drivers/md/dm-raid1.c
33122 +++ b/drivers/md/dm-raid1.c
33123 @@ -40,7 +40,7 @@ enum dm_raid1_error {
33124
33125 struct mirror {
33126 struct mirror_set *ms;
33127 - atomic_t error_count;
33128 + atomic_unchecked_t error_count;
33129 unsigned long error_type;
33130 struct dm_dev *dev;
33131 sector_t offset;
33132 @@ -185,7 +185,7 @@ static struct mirror *get_valid_mirror(struct mirror_set *ms)
33133 struct mirror *m;
33134
33135 for (m = ms->mirror; m < ms->mirror + ms->nr_mirrors; m++)
33136 - if (!atomic_read(&m->error_count))
33137 + if (!atomic_read_unchecked(&m->error_count))
33138 return m;
33139
33140 return NULL;
33141 @@ -217,7 +217,7 @@ static void fail_mirror(struct mirror *m, enum dm_raid1_error error_type)
33142 * simple way to tell if a device has encountered
33143 * errors.
33144 */
33145 - atomic_inc(&m->error_count);
33146 + atomic_inc_unchecked(&m->error_count);
33147
33148 if (test_and_set_bit(error_type, &m->error_type))
33149 return;
33150 @@ -408,7 +408,7 @@ static struct mirror *choose_mirror(struct mirror_set *ms, sector_t sector)
33151 struct mirror *m = get_default_mirror(ms);
33152
33153 do {
33154 - if (likely(!atomic_read(&m->error_count)))
33155 + if (likely(!atomic_read_unchecked(&m->error_count)))
33156 return m;
33157
33158 if (m-- == ms->mirror)
33159 @@ -422,7 +422,7 @@ static int default_ok(struct mirror *m)
33160 {
33161 struct mirror *default_mirror = get_default_mirror(m->ms);
33162
33163 - return !atomic_read(&default_mirror->error_count);
33164 + return !atomic_read_unchecked(&default_mirror->error_count);
33165 }
33166
33167 static int mirror_available(struct mirror_set *ms, struct bio *bio)
33168 @@ -559,7 +559,7 @@ static void do_reads(struct mirror_set *ms, struct bio_list *reads)
33169 */
33170 if (likely(region_in_sync(ms, region, 1)))
33171 m = choose_mirror(ms, bio->bi_sector);
33172 - else if (m && atomic_read(&m->error_count))
33173 + else if (m && atomic_read_unchecked(&m->error_count))
33174 m = NULL;
33175
33176 if (likely(m))
33177 @@ -938,7 +938,7 @@ static int get_mirror(struct mirror_set *ms, struct dm_target *ti,
33178 }
33179
33180 ms->mirror[mirror].ms = ms;
33181 - atomic_set(&(ms->mirror[mirror].error_count), 0);
33182 + atomic_set_unchecked(&(ms->mirror[mirror].error_count), 0);
33183 ms->mirror[mirror].error_type = 0;
33184 ms->mirror[mirror].offset = offset;
33185
33186 @@ -1352,7 +1352,7 @@ static void mirror_resume(struct dm_target *ti)
33187 */
33188 static char device_status_char(struct mirror *m)
33189 {
33190 - if (!atomic_read(&(m->error_count)))
33191 + if (!atomic_read_unchecked(&(m->error_count)))
33192 return 'A';
33193
33194 return (test_bit(DM_RAID1_FLUSH_ERROR, &(m->error_type))) ? 'F' :
33195 diff --git a/drivers/md/dm-stripe.c b/drivers/md/dm-stripe.c
33196 index 35c94ff..20d4c17 100644
33197 --- a/drivers/md/dm-stripe.c
33198 +++ b/drivers/md/dm-stripe.c
33199 @@ -20,7 +20,7 @@ struct stripe {
33200 struct dm_dev *dev;
33201 sector_t physical_start;
33202
33203 - atomic_t error_count;
33204 + atomic_unchecked_t error_count;
33205 };
33206
33207 struct stripe_c {
33208 @@ -193,7 +193,7 @@ static int stripe_ctr(struct dm_target *ti, unsigned int argc, char **argv)
33209 kfree(sc);
33210 return r;
33211 }
33212 - atomic_set(&(sc->stripe[i].error_count), 0);
33213 + atomic_set_unchecked(&(sc->stripe[i].error_count), 0);
33214 }
33215
33216 ti->private = sc;
33217 @@ -315,7 +315,7 @@ static int stripe_status(struct dm_target *ti,
33218 DMEMIT("%d ", sc->stripes);
33219 for (i = 0; i < sc->stripes; i++) {
33220 DMEMIT("%s ", sc->stripe[i].dev->name);
33221 - buffer[i] = atomic_read(&(sc->stripe[i].error_count)) ?
33222 + buffer[i] = atomic_read_unchecked(&(sc->stripe[i].error_count)) ?
33223 'D' : 'A';
33224 }
33225 buffer[i] = '\0';
33226 @@ -362,8 +362,8 @@ static int stripe_end_io(struct dm_target *ti, struct bio *bio,
33227 */
33228 for (i = 0; i < sc->stripes; i++)
33229 if (!strcmp(sc->stripe[i].dev->name, major_minor)) {
33230 - atomic_inc(&(sc->stripe[i].error_count));
33231 - if (atomic_read(&(sc->stripe[i].error_count)) <
33232 + atomic_inc_unchecked(&(sc->stripe[i].error_count));
33233 + if (atomic_read_unchecked(&(sc->stripe[i].error_count)) <
33234 DM_IO_ERROR_THRESHOLD)
33235 schedule_work(&sc->trigger_event);
33236 }
33237 diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
33238 index 2e227fb..44ead1f 100644
33239 --- a/drivers/md/dm-table.c
33240 +++ b/drivers/md/dm-table.c
33241 @@ -390,7 +390,7 @@ static int device_area_is_invalid(struct dm_target *ti, struct dm_dev *dev,
33242 if (!dev_size)
33243 return 0;
33244
33245 - if ((start >= dev_size) || (start + len > dev_size)) {
33246 + if ((start >= dev_size) || (len > dev_size - start)) {
33247 DMWARN("%s: %s too small for target: "
33248 "start=%llu, len=%llu, dev_size=%llu",
33249 dm_device_name(ti->table->md), bdevname(bdev, b),
33250 diff --git a/drivers/md/dm-thin-metadata.c b/drivers/md/dm-thin-metadata.c
33251 index 3e2907f..c28851a 100644
33252 --- a/drivers/md/dm-thin-metadata.c
33253 +++ b/drivers/md/dm-thin-metadata.c
33254 @@ -432,7 +432,7 @@ static int init_pmd(struct dm_pool_metadata *pmd,
33255
33256 pmd->info.tm = tm;
33257 pmd->info.levels = 2;
33258 - pmd->info.value_type.context = pmd->data_sm;
33259 + pmd->info.value_type.context = (dm_space_map_no_const *)pmd->data_sm;
33260 pmd->info.value_type.size = sizeof(__le64);
33261 pmd->info.value_type.inc = data_block_inc;
33262 pmd->info.value_type.dec = data_block_dec;
33263 @@ -451,7 +451,7 @@ static int init_pmd(struct dm_pool_metadata *pmd,
33264
33265 pmd->bl_info.tm = tm;
33266 pmd->bl_info.levels = 1;
33267 - pmd->bl_info.value_type.context = pmd->data_sm;
33268 + pmd->bl_info.value_type.context = (dm_space_map_no_const *)pmd->data_sm;
33269 pmd->bl_info.value_type.size = sizeof(__le64);
33270 pmd->bl_info.value_type.inc = data_block_inc;
33271 pmd->bl_info.value_type.dec = data_block_dec;
33272 diff --git a/drivers/md/dm.c b/drivers/md/dm.c
33273 index e24143c..ce2f21a1 100644
33274 --- a/drivers/md/dm.c
33275 +++ b/drivers/md/dm.c
33276 @@ -176,9 +176,9 @@ struct mapped_device {
33277 /*
33278 * Event handling.
33279 */
33280 - atomic_t event_nr;
33281 + atomic_unchecked_t event_nr;
33282 wait_queue_head_t eventq;
33283 - atomic_t uevent_seq;
33284 + atomic_unchecked_t uevent_seq;
33285 struct list_head uevent_list;
33286 spinlock_t uevent_lock; /* Protect access to uevent_list */
33287
33288 @@ -1845,8 +1845,8 @@ static struct mapped_device *alloc_dev(int minor)
33289 rwlock_init(&md->map_lock);
33290 atomic_set(&md->holders, 1);
33291 atomic_set(&md->open_count, 0);
33292 - atomic_set(&md->event_nr, 0);
33293 - atomic_set(&md->uevent_seq, 0);
33294 + atomic_set_unchecked(&md->event_nr, 0);
33295 + atomic_set_unchecked(&md->uevent_seq, 0);
33296 INIT_LIST_HEAD(&md->uevent_list);
33297 spin_lock_init(&md->uevent_lock);
33298
33299 @@ -1980,7 +1980,7 @@ static void event_callback(void *context)
33300
33301 dm_send_uevents(&uevents, &disk_to_dev(md->disk)->kobj);
33302
33303 - atomic_inc(&md->event_nr);
33304 + atomic_inc_unchecked(&md->event_nr);
33305 wake_up(&md->eventq);
33306 }
33307
33308 @@ -2622,18 +2622,18 @@ int dm_kobject_uevent(struct mapped_device *md, enum kobject_action action,
33309
33310 uint32_t dm_next_uevent_seq(struct mapped_device *md)
33311 {
33312 - return atomic_add_return(1, &md->uevent_seq);
33313 + return atomic_add_return_unchecked(1, &md->uevent_seq);
33314 }
33315
33316 uint32_t dm_get_event_nr(struct mapped_device *md)
33317 {
33318 - return atomic_read(&md->event_nr);
33319 + return atomic_read_unchecked(&md->event_nr);
33320 }
33321
33322 int dm_wait_event(struct mapped_device *md, int event_nr)
33323 {
33324 return wait_event_interruptible(md->eventq,
33325 - (event_nr != atomic_read(&md->event_nr)));
33326 + (event_nr != atomic_read_unchecked(&md->event_nr)));
33327 }
33328
33329 void dm_uevent_add(struct mapped_device *md, struct list_head *elist)
33330 diff --git a/drivers/md/md.c b/drivers/md/md.c
33331 index d5ab449..7e9ed7b 100644
33332 --- a/drivers/md/md.c
33333 +++ b/drivers/md/md.c
33334 @@ -277,10 +277,10 @@ EXPORT_SYMBOL_GPL(md_trim_bio);
33335 * start build, activate spare
33336 */
33337 static DECLARE_WAIT_QUEUE_HEAD(md_event_waiters);
33338 -static atomic_t md_event_count;
33339 +static atomic_unchecked_t md_event_count;
33340 void md_new_event(struct mddev *mddev)
33341 {
33342 - atomic_inc(&md_event_count);
33343 + atomic_inc_unchecked(&md_event_count);
33344 wake_up(&md_event_waiters);
33345 }
33346 EXPORT_SYMBOL_GPL(md_new_event);
33347 @@ -290,7 +290,7 @@ EXPORT_SYMBOL_GPL(md_new_event);
33348 */
33349 static void md_new_event_inintr(struct mddev *mddev)
33350 {
33351 - atomic_inc(&md_event_count);
33352 + atomic_inc_unchecked(&md_event_count);
33353 wake_up(&md_event_waiters);
33354 }
33355
33356 @@ -1565,7 +1565,7 @@ static int super_1_load(struct md_rdev *rdev, struct md_rdev *refdev, int minor_
33357 if ((le32_to_cpu(sb->feature_map) & MD_FEATURE_RESHAPE_ACTIVE) &&
33358 (le32_to_cpu(sb->feature_map) & MD_FEATURE_NEW_OFFSET))
33359 rdev->new_data_offset += (s32)le32_to_cpu(sb->new_offset);
33360 - atomic_set(&rdev->corrected_errors, le32_to_cpu(sb->cnt_corrected_read));
33361 + atomic_set_unchecked(&rdev->corrected_errors, le32_to_cpu(sb->cnt_corrected_read));
33362
33363 rdev->sb_size = le32_to_cpu(sb->max_dev) * 2 + 256;
33364 bmask = queue_logical_block_size(rdev->bdev->bd_disk->queue)-1;
33365 @@ -1809,7 +1809,7 @@ static void super_1_sync(struct mddev *mddev, struct md_rdev *rdev)
33366 else
33367 sb->resync_offset = cpu_to_le64(0);
33368
33369 - sb->cnt_corrected_read = cpu_to_le32(atomic_read(&rdev->corrected_errors));
33370 + sb->cnt_corrected_read = cpu_to_le32(atomic_read_unchecked(&rdev->corrected_errors));
33371
33372 sb->raid_disks = cpu_to_le32(mddev->raid_disks);
33373 sb->size = cpu_to_le64(mddev->dev_sectors);
33374 @@ -2803,7 +2803,7 @@ __ATTR(state, S_IRUGO|S_IWUSR, state_show, state_store);
33375 static ssize_t
33376 errors_show(struct md_rdev *rdev, char *page)
33377 {
33378 - return sprintf(page, "%d\n", atomic_read(&rdev->corrected_errors));
33379 + return sprintf(page, "%d\n", atomic_read_unchecked(&rdev->corrected_errors));
33380 }
33381
33382 static ssize_t
33383 @@ -2812,7 +2812,7 @@ errors_store(struct md_rdev *rdev, const char *buf, size_t len)
33384 char *e;
33385 unsigned long n = simple_strtoul(buf, &e, 10);
33386 if (*buf && (*e == 0 || *e == '\n')) {
33387 - atomic_set(&rdev->corrected_errors, n);
33388 + atomic_set_unchecked(&rdev->corrected_errors, n);
33389 return len;
33390 }
33391 return -EINVAL;
33392 @@ -3259,8 +3259,8 @@ int md_rdev_init(struct md_rdev *rdev)
33393 rdev->sb_loaded = 0;
33394 rdev->bb_page = NULL;
33395 atomic_set(&rdev->nr_pending, 0);
33396 - atomic_set(&rdev->read_errors, 0);
33397 - atomic_set(&rdev->corrected_errors, 0);
33398 + atomic_set_unchecked(&rdev->read_errors, 0);
33399 + atomic_set_unchecked(&rdev->corrected_errors, 0);
33400
33401 INIT_LIST_HEAD(&rdev->same_set);
33402 init_waitqueue_head(&rdev->blocked_wait);
33403 @@ -6997,7 +6997,7 @@ static int md_seq_show(struct seq_file *seq, void *v)
33404
33405 spin_unlock(&pers_lock);
33406 seq_printf(seq, "\n");
33407 - seq->poll_event = atomic_read(&md_event_count);
33408 + seq->poll_event = atomic_read_unchecked(&md_event_count);
33409 return 0;
33410 }
33411 if (v == (void*)2) {
33412 @@ -7100,7 +7100,7 @@ static int md_seq_open(struct inode *inode, struct file *file)
33413 return error;
33414
33415 seq = file->private_data;
33416 - seq->poll_event = atomic_read(&md_event_count);
33417 + seq->poll_event = atomic_read_unchecked(&md_event_count);
33418 return error;
33419 }
33420
33421 @@ -7114,7 +7114,7 @@ static unsigned int mdstat_poll(struct file *filp, poll_table *wait)
33422 /* always allow read */
33423 mask = POLLIN | POLLRDNORM;
33424
33425 - if (seq->poll_event != atomic_read(&md_event_count))
33426 + if (seq->poll_event != atomic_read_unchecked(&md_event_count))
33427 mask |= POLLERR | POLLPRI;
33428 return mask;
33429 }
33430 @@ -7158,7 +7158,7 @@ static int is_mddev_idle(struct mddev *mddev, int init)
33431 struct gendisk *disk = rdev->bdev->bd_contains->bd_disk;
33432 curr_events = (int)part_stat_read(&disk->part0, sectors[0]) +
33433 (int)part_stat_read(&disk->part0, sectors[1]) -
33434 - atomic_read(&disk->sync_io);
33435 + atomic_read_unchecked(&disk->sync_io);
33436 /* sync IO will cause sync_io to increase before the disk_stats
33437 * as sync_io is counted when a request starts, and
33438 * disk_stats is counted when it completes.
33439 diff --git a/drivers/md/md.h b/drivers/md/md.h
33440 index 7b4a3c3..994ad4f 100644
33441 --- a/drivers/md/md.h
33442 +++ b/drivers/md/md.h
33443 @@ -94,13 +94,13 @@ struct md_rdev {
33444 * only maintained for arrays that
33445 * support hot removal
33446 */
33447 - atomic_t read_errors; /* number of consecutive read errors that
33448 + atomic_unchecked_t read_errors; /* number of consecutive read errors that
33449 * we have tried to ignore.
33450 */
33451 struct timespec last_read_error; /* monotonic time since our
33452 * last read error
33453 */
33454 - atomic_t corrected_errors; /* number of corrected read errors,
33455 + atomic_unchecked_t corrected_errors; /* number of corrected read errors,
33456 * for reporting to userspace and storing
33457 * in superblock.
33458 */
33459 @@ -435,7 +435,7 @@ static inline void rdev_dec_pending(struct md_rdev *rdev, struct mddev *mddev)
33460
33461 static inline void md_sync_acct(struct block_device *bdev, unsigned long nr_sectors)
33462 {
33463 - atomic_add(nr_sectors, &bdev->bd_contains->bd_disk->sync_io);
33464 + atomic_add_unchecked(nr_sectors, &bdev->bd_contains->bd_disk->sync_io);
33465 }
33466
33467 struct md_personality
33468 diff --git a/drivers/md/persistent-data/dm-space-map-checker.c b/drivers/md/persistent-data/dm-space-map-checker.c
33469 index fc90c11..c8cd9a9 100644
33470 --- a/drivers/md/persistent-data/dm-space-map-checker.c
33471 +++ b/drivers/md/persistent-data/dm-space-map-checker.c
33472 @@ -167,7 +167,7 @@ static int ca_commit(struct count_array *old, struct count_array *new)
33473 /*----------------------------------------------------------------*/
33474
33475 struct sm_checker {
33476 - struct dm_space_map sm;
33477 + dm_space_map_no_const sm;
33478
33479 struct count_array old_counts;
33480 struct count_array counts;
33481 diff --git a/drivers/md/persistent-data/dm-space-map-disk.c b/drivers/md/persistent-data/dm-space-map-disk.c
33482 index 3d0ed53..35dc592 100644
33483 --- a/drivers/md/persistent-data/dm-space-map-disk.c
33484 +++ b/drivers/md/persistent-data/dm-space-map-disk.c
33485 @@ -23,7 +23,7 @@
33486 * Space map interface.
33487 */
33488 struct sm_disk {
33489 - struct dm_space_map sm;
33490 + dm_space_map_no_const sm;
33491
33492 struct ll_disk ll;
33493 struct ll_disk old_ll;
33494 diff --git a/drivers/md/persistent-data/dm-space-map-metadata.c b/drivers/md/persistent-data/dm-space-map-metadata.c
33495 index e89ae5e..062e4c2 100644
33496 --- a/drivers/md/persistent-data/dm-space-map-metadata.c
33497 +++ b/drivers/md/persistent-data/dm-space-map-metadata.c
33498 @@ -43,7 +43,7 @@ struct block_op {
33499 };
33500
33501 struct sm_metadata {
33502 - struct dm_space_map sm;
33503 + dm_space_map_no_const sm;
33504
33505 struct ll_disk ll;
33506 struct ll_disk old_ll;
33507 diff --git a/drivers/md/persistent-data/dm-space-map.h b/drivers/md/persistent-data/dm-space-map.h
33508 index 1cbfc6b..56e1dbb 100644
33509 --- a/drivers/md/persistent-data/dm-space-map.h
33510 +++ b/drivers/md/persistent-data/dm-space-map.h
33511 @@ -60,6 +60,7 @@ struct dm_space_map {
33512 int (*root_size)(struct dm_space_map *sm, size_t *result);
33513 int (*copy_root)(struct dm_space_map *sm, void *copy_to_here_le, size_t len);
33514 };
33515 +typedef struct dm_space_map __no_const dm_space_map_no_const;
33516
33517 /*----------------------------------------------------------------*/
33518
33519 diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
33520 index 53aec45..250851c 100644
33521 --- a/drivers/md/raid1.c
33522 +++ b/drivers/md/raid1.c
33523 @@ -1685,7 +1685,7 @@ static int fix_sync_read_error(struct r1bio *r1_bio)
33524 if (r1_sync_page_io(rdev, sect, s,
33525 bio->bi_io_vec[idx].bv_page,
33526 READ) != 0)
33527 - atomic_add(s, &rdev->corrected_errors);
33528 + atomic_add_unchecked(s, &rdev->corrected_errors);
33529 }
33530 sectors -= s;
33531 sect += s;
33532 @@ -1907,7 +1907,7 @@ static void fix_read_error(struct r1conf *conf, int read_disk,
33533 test_bit(In_sync, &rdev->flags)) {
33534 if (r1_sync_page_io(rdev, sect, s,
33535 conf->tmppage, READ)) {
33536 - atomic_add(s, &rdev->corrected_errors);
33537 + atomic_add_unchecked(s, &rdev->corrected_errors);
33538 printk(KERN_INFO
33539 "md/raid1:%s: read error corrected "
33540 "(%d sectors at %llu on %s)\n",
33541 diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
33542 index 8da6282..8ec7103 100644
33543 --- a/drivers/md/raid10.c
33544 +++ b/drivers/md/raid10.c
33545 @@ -1784,7 +1784,7 @@ static void end_sync_read(struct bio *bio, int error)
33546 /* The write handler will notice the lack of
33547 * R10BIO_Uptodate and record any errors etc
33548 */
33549 - atomic_add(r10_bio->sectors,
33550 + atomic_add_unchecked(r10_bio->sectors,
33551 &conf->mirrors[d].rdev->corrected_errors);
33552
33553 /* for reconstruct, we always reschedule after a read.
33554 @@ -2133,7 +2133,7 @@ static void check_decay_read_errors(struct mddev *mddev, struct md_rdev *rdev)
33555 {
33556 struct timespec cur_time_mon;
33557 unsigned long hours_since_last;
33558 - unsigned int read_errors = atomic_read(&rdev->read_errors);
33559 + unsigned int read_errors = atomic_read_unchecked(&rdev->read_errors);
33560
33561 ktime_get_ts(&cur_time_mon);
33562
33563 @@ -2155,9 +2155,9 @@ static void check_decay_read_errors(struct mddev *mddev, struct md_rdev *rdev)
33564 * overflowing the shift of read_errors by hours_since_last.
33565 */
33566 if (hours_since_last >= 8 * sizeof(read_errors))
33567 - atomic_set(&rdev->read_errors, 0);
33568 + atomic_set_unchecked(&rdev->read_errors, 0);
33569 else
33570 - atomic_set(&rdev->read_errors, read_errors >> hours_since_last);
33571 + atomic_set_unchecked(&rdev->read_errors, read_errors >> hours_since_last);
33572 }
33573
33574 static int r10_sync_page_io(struct md_rdev *rdev, sector_t sector,
33575 @@ -2211,8 +2211,8 @@ static void fix_read_error(struct r10conf *conf, struct mddev *mddev, struct r10
33576 return;
33577
33578 check_decay_read_errors(mddev, rdev);
33579 - atomic_inc(&rdev->read_errors);
33580 - if (atomic_read(&rdev->read_errors) > max_read_errors) {
33581 + atomic_inc_unchecked(&rdev->read_errors);
33582 + if (atomic_read_unchecked(&rdev->read_errors) > max_read_errors) {
33583 char b[BDEVNAME_SIZE];
33584 bdevname(rdev->bdev, b);
33585
33586 @@ -2220,7 +2220,7 @@ static void fix_read_error(struct r10conf *conf, struct mddev *mddev, struct r10
33587 "md/raid10:%s: %s: Raid device exceeded "
33588 "read_error threshold [cur %d:max %d]\n",
33589 mdname(mddev), b,
33590 - atomic_read(&rdev->read_errors), max_read_errors);
33591 + atomic_read_unchecked(&rdev->read_errors), max_read_errors);
33592 printk(KERN_NOTICE
33593 "md/raid10:%s: %s: Failing raid device\n",
33594 mdname(mddev), b);
33595 @@ -2375,7 +2375,7 @@ static void fix_read_error(struct r10conf *conf, struct mddev *mddev, struct r10
33596 sect +
33597 choose_data_offset(r10_bio, rdev)),
33598 bdevname(rdev->bdev, b));
33599 - atomic_add(s, &rdev->corrected_errors);
33600 + atomic_add_unchecked(s, &rdev->corrected_errors);
33601 }
33602
33603 rdev_dec_pending(rdev, mddev);
33604 diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
33605 index 04348d7..62a4b9b 100644
33606 --- a/drivers/md/raid5.c
33607 +++ b/drivers/md/raid5.c
33608 @@ -1736,19 +1736,19 @@ static void raid5_end_read_request(struct bio * bi, int error)
33609 mdname(conf->mddev), STRIPE_SECTORS,
33610 (unsigned long long)s,
33611 bdevname(rdev->bdev, b));
33612 - atomic_add(STRIPE_SECTORS, &rdev->corrected_errors);
33613 + atomic_add_unchecked(STRIPE_SECTORS, &rdev->corrected_errors);
33614 clear_bit(R5_ReadError, &sh->dev[i].flags);
33615 clear_bit(R5_ReWrite, &sh->dev[i].flags);
33616 }
33617 - if (atomic_read(&rdev->read_errors))
33618 - atomic_set(&rdev->read_errors, 0);
33619 + if (atomic_read_unchecked(&rdev->read_errors))
33620 + atomic_set_unchecked(&rdev->read_errors, 0);
33621 } else {
33622 const char *bdn = bdevname(rdev->bdev, b);
33623 int retry = 0;
33624 int set_bad = 0;
33625
33626 clear_bit(R5_UPTODATE, &sh->dev[i].flags);
33627 - atomic_inc(&rdev->read_errors);
33628 + atomic_inc_unchecked(&rdev->read_errors);
33629 if (test_bit(R5_ReadRepl, &sh->dev[i].flags))
33630 printk_ratelimited(
33631 KERN_WARNING
33632 @@ -1776,7 +1776,7 @@ static void raid5_end_read_request(struct bio * bi, int error)
33633 mdname(conf->mddev),
33634 (unsigned long long)s,
33635 bdn);
33636 - } else if (atomic_read(&rdev->read_errors)
33637 + } else if (atomic_read_unchecked(&rdev->read_errors)
33638 > conf->max_nr_stripes)
33639 printk(KERN_WARNING
33640 "md/raid:%s: Too many read errors, failing device %s.\n",
33641 diff --git a/drivers/media/dvb/ddbridge/ddbridge-core.c b/drivers/media/dvb/ddbridge/ddbridge-core.c
33642 index 131b938..8572ed1 100644
33643 --- a/drivers/media/dvb/ddbridge/ddbridge-core.c
33644 +++ b/drivers/media/dvb/ddbridge/ddbridge-core.c
33645 @@ -1678,7 +1678,7 @@ static struct ddb_info ddb_v6 = {
33646 .subvendor = _subvend, .subdevice = _subdev, \
33647 .driver_data = (unsigned long)&_driverdata }
33648
33649 -static const struct pci_device_id ddb_id_tbl[] __devinitdata = {
33650 +static const struct pci_device_id ddb_id_tbl[] __devinitconst = {
33651 DDB_ID(DDVID, 0x0002, DDVID, 0x0001, ddb_octopus),
33652 DDB_ID(DDVID, 0x0003, DDVID, 0x0001, ddb_octopus),
33653 DDB_ID(DDVID, 0x0003, DDVID, 0x0002, ddb_octopus_le),
33654 diff --git a/drivers/media/dvb/dvb-core/dvb_demux.h b/drivers/media/dvb/dvb-core/dvb_demux.h
33655 index fa7188a..04a045e 100644
33656 --- a/drivers/media/dvb/dvb-core/dvb_demux.h
33657 +++ b/drivers/media/dvb/dvb-core/dvb_demux.h
33658 @@ -73,7 +73,7 @@ struct dvb_demux_feed {
33659 union {
33660 dmx_ts_cb ts;
33661 dmx_section_cb sec;
33662 - } cb;
33663 + } __no_const cb;
33664
33665 struct dvb_demux *demux;
33666 void *priv;
33667 diff --git a/drivers/media/dvb/dvb-core/dvbdev.c b/drivers/media/dvb/dvb-core/dvbdev.c
33668 index 39eab73..60033e7 100644
33669 --- a/drivers/media/dvb/dvb-core/dvbdev.c
33670 +++ b/drivers/media/dvb/dvb-core/dvbdev.c
33671 @@ -192,7 +192,7 @@ int dvb_register_device(struct dvb_adapter *adap, struct dvb_device **pdvbdev,
33672 const struct dvb_device *template, void *priv, int type)
33673 {
33674 struct dvb_device *dvbdev;
33675 - struct file_operations *dvbdevfops;
33676 + file_operations_no_const *dvbdevfops;
33677 struct device *clsdev;
33678 int minor;
33679 int id;
33680 diff --git a/drivers/media/dvb/dvb-usb/az6007.c b/drivers/media/dvb/dvb-usb/az6007.c
33681 index 4008b9c..ce714f5 100644
33682 --- a/drivers/media/dvb/dvb-usb/az6007.c
33683 +++ b/drivers/media/dvb/dvb-usb/az6007.c
33684 @@ -590,7 +590,7 @@ static int az6007_read_mac_addr(struct dvb_usb_device *d, u8 mac[6])
33685 int ret;
33686
33687 ret = az6007_read(d, AZ6007_READ_DATA, 6, 0, st->data, 6);
33688 - memcpy(mac, st->data, sizeof(mac));
33689 + memcpy(mac, st->data, 6);
33690
33691 if (ret > 0)
33692 deb_info("%s: mac is %02x:%02x:%02x:%02x:%02x:%02x\n",
33693 diff --git a/drivers/media/dvb/dvb-usb/cxusb.c b/drivers/media/dvb/dvb-usb/cxusb.c
33694 index 3940bb0..fb3952a 100644
33695 --- a/drivers/media/dvb/dvb-usb/cxusb.c
33696 +++ b/drivers/media/dvb/dvb-usb/cxusb.c
33697 @@ -1068,7 +1068,7 @@ static struct dib0070_config dib7070p_dib0070_config = {
33698
33699 struct dib0700_adapter_state {
33700 int (*set_param_save) (struct dvb_frontend *);
33701 -};
33702 +} __no_const;
33703
33704 static int dib7070_set_param_override(struct dvb_frontend *fe)
33705 {
33706 diff --git a/drivers/media/dvb/dvb-usb/dw2102.c b/drivers/media/dvb/dvb-usb/dw2102.c
33707 index 9382895..ac8093c 100644
33708 --- a/drivers/media/dvb/dvb-usb/dw2102.c
33709 +++ b/drivers/media/dvb/dvb-usb/dw2102.c
33710 @@ -95,7 +95,7 @@ struct su3000_state {
33711
33712 struct s6x0_state {
33713 int (*old_set_voltage)(struct dvb_frontend *f, fe_sec_voltage_t v);
33714 -};
33715 +} __no_const;
33716
33717 /* debug */
33718 static int dvb_usb_dw2102_debug;
33719 diff --git a/drivers/media/dvb/frontends/dib3000.h b/drivers/media/dvb/frontends/dib3000.h
33720 index 404f63a..4796533 100644
33721 --- a/drivers/media/dvb/frontends/dib3000.h
33722 +++ b/drivers/media/dvb/frontends/dib3000.h
33723 @@ -39,7 +39,7 @@ struct dib_fe_xfer_ops
33724 int (*fifo_ctrl)(struct dvb_frontend *fe, int onoff);
33725 int (*pid_ctrl)(struct dvb_frontend *fe, int index, int pid, int onoff);
33726 int (*tuner_pass_ctrl)(struct dvb_frontend *fe, int onoff, u8 pll_ctrl);
33727 -};
33728 +} __no_const;
33729
33730 #if defined(CONFIG_DVB_DIB3000MB) || (defined(CONFIG_DVB_DIB3000MB_MODULE) && defined(MODULE))
33731 extern struct dvb_frontend* dib3000mb_attach(const struct dib3000_config* config,
33732 diff --git a/drivers/media/dvb/ngene/ngene-cards.c b/drivers/media/dvb/ngene/ngene-cards.c
33733 index 7539a5d..06531a6 100644
33734 --- a/drivers/media/dvb/ngene/ngene-cards.c
33735 +++ b/drivers/media/dvb/ngene/ngene-cards.c
33736 @@ -478,7 +478,7 @@ static struct ngene_info ngene_info_m780 = {
33737
33738 /****************************************************************************/
33739
33740 -static const struct pci_device_id ngene_id_tbl[] __devinitdata = {
33741 +static const struct pci_device_id ngene_id_tbl[] __devinitconst = {
33742 NGENE_ID(0x18c3, 0xabc3, ngene_info_cineS2),
33743 NGENE_ID(0x18c3, 0xabc4, ngene_info_cineS2),
33744 NGENE_ID(0x18c3, 0xdb01, ngene_info_satixS2),
33745 diff --git a/drivers/media/radio/radio-cadet.c b/drivers/media/radio/radio-cadet.c
33746 index 16a089f..1661b11 100644
33747 --- a/drivers/media/radio/radio-cadet.c
33748 +++ b/drivers/media/radio/radio-cadet.c
33749 @@ -326,6 +326,8 @@ static ssize_t cadet_read(struct file *file, char __user *data, size_t count, lo
33750 unsigned char readbuf[RDS_BUFFER];
33751 int i = 0;
33752
33753 + if (count > RDS_BUFFER)
33754 + return -EFAULT;
33755 mutex_lock(&dev->lock);
33756 if (dev->rdsstat == 0) {
33757 dev->rdsstat = 1;
33758 @@ -347,7 +349,7 @@ static ssize_t cadet_read(struct file *file, char __user *data, size_t count, lo
33759 readbuf[i++] = dev->rdsbuf[dev->rdsout++];
33760 mutex_unlock(&dev->lock);
33761
33762 - if (copy_to_user(data, readbuf, i))
33763 + if (i > sizeof(readbuf) || copy_to_user(data, readbuf, i))
33764 return -EFAULT;
33765 return i;
33766 }
33767 diff --git a/drivers/media/video/au0828/au0828.h b/drivers/media/video/au0828/au0828.h
33768 index 9cde353..8c6a1c3 100644
33769 --- a/drivers/media/video/au0828/au0828.h
33770 +++ b/drivers/media/video/au0828/au0828.h
33771 @@ -191,7 +191,7 @@ struct au0828_dev {
33772
33773 /* I2C */
33774 struct i2c_adapter i2c_adap;
33775 - struct i2c_algorithm i2c_algo;
33776 + i2c_algorithm_no_const i2c_algo;
33777 struct i2c_client i2c_client;
33778 u32 i2c_rc;
33779
33780 diff --git a/drivers/media/video/cx88/cx88-alsa.c b/drivers/media/video/cx88/cx88-alsa.c
33781 index 04bf662..e0ac026 100644
33782 --- a/drivers/media/video/cx88/cx88-alsa.c
33783 +++ b/drivers/media/video/cx88/cx88-alsa.c
33784 @@ -766,7 +766,7 @@ static struct snd_kcontrol_new snd_cx88_alc_switch = {
33785 * Only boards with eeprom and byte 1 at eeprom=1 have it
33786 */
33787
33788 -static const struct pci_device_id const cx88_audio_pci_tbl[] __devinitdata = {
33789 +static const struct pci_device_id const cx88_audio_pci_tbl[] __devinitconst = {
33790 {0x14f1,0x8801,PCI_ANY_ID,PCI_ANY_ID,0,0,0},
33791 {0x14f1,0x8811,PCI_ANY_ID,PCI_ANY_ID,0,0,0},
33792 {0, }
33793 diff --git a/drivers/media/video/omap/omap_vout.c b/drivers/media/video/omap/omap_vout.c
33794 index 88cf9d9..bbc4b2c 100644
33795 --- a/drivers/media/video/omap/omap_vout.c
33796 +++ b/drivers/media/video/omap/omap_vout.c
33797 @@ -64,7 +64,6 @@ enum omap_vout_channels {
33798 OMAP_VIDEO2,
33799 };
33800
33801 -static struct videobuf_queue_ops video_vbq_ops;
33802 /* Variables configurable through module params*/
33803 static u32 video1_numbuffers = 3;
33804 static u32 video2_numbuffers = 3;
33805 @@ -1000,6 +999,12 @@ static int omap_vout_open(struct file *file)
33806 {
33807 struct videobuf_queue *q;
33808 struct omap_vout_device *vout = NULL;
33809 + static struct videobuf_queue_ops video_vbq_ops = {
33810 + .buf_setup = omap_vout_buffer_setup,
33811 + .buf_prepare = omap_vout_buffer_prepare,
33812 + .buf_release = omap_vout_buffer_release,
33813 + .buf_queue = omap_vout_buffer_queue,
33814 + };
33815
33816 vout = video_drvdata(file);
33817 v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "Entering %s\n", __func__);
33818 @@ -1017,10 +1022,6 @@ static int omap_vout_open(struct file *file)
33819 vout->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
33820
33821 q = &vout->vbq;
33822 - video_vbq_ops.buf_setup = omap_vout_buffer_setup;
33823 - video_vbq_ops.buf_prepare = omap_vout_buffer_prepare;
33824 - video_vbq_ops.buf_release = omap_vout_buffer_release;
33825 - video_vbq_ops.buf_queue = omap_vout_buffer_queue;
33826 spin_lock_init(&vout->vbq_lock);
33827
33828 videobuf_queue_dma_contig_init(q, &video_vbq_ops, q->dev,
33829 diff --git a/drivers/media/video/pvrusb2/pvrusb2-hdw-internal.h b/drivers/media/video/pvrusb2/pvrusb2-hdw-internal.h
33830 index 036952f..80d356d 100644
33831 --- a/drivers/media/video/pvrusb2/pvrusb2-hdw-internal.h
33832 +++ b/drivers/media/video/pvrusb2/pvrusb2-hdw-internal.h
33833 @@ -196,7 +196,7 @@ struct pvr2_hdw {
33834
33835 /* I2C stuff */
33836 struct i2c_adapter i2c_adap;
33837 - struct i2c_algorithm i2c_algo;
33838 + i2c_algorithm_no_const i2c_algo;
33839 pvr2_i2c_func i2c_func[PVR2_I2C_FUNC_CNT];
33840 int i2c_cx25840_hack_state;
33841 int i2c_linked;
33842 diff --git a/drivers/media/video/timblogiw.c b/drivers/media/video/timblogiw.c
33843 index 02194c0..091733b 100644
33844 --- a/drivers/media/video/timblogiw.c
33845 +++ b/drivers/media/video/timblogiw.c
33846 @@ -745,7 +745,7 @@ static int timblogiw_mmap(struct file *file, struct vm_area_struct *vma)
33847
33848 /* Platform device functions */
33849
33850 -static __devinitconst struct v4l2_ioctl_ops timblogiw_ioctl_ops = {
33851 +static __devinitconst v4l2_ioctl_ops_no_const timblogiw_ioctl_ops = {
33852 .vidioc_querycap = timblogiw_querycap,
33853 .vidioc_enum_fmt_vid_cap = timblogiw_enum_fmt,
33854 .vidioc_g_fmt_vid_cap = timblogiw_g_fmt,
33855 @@ -767,7 +767,7 @@ static __devinitconst struct v4l2_ioctl_ops timblogiw_ioctl_ops = {
33856 .vidioc_enum_framesizes = timblogiw_enum_framesizes,
33857 };
33858
33859 -static __devinitconst struct v4l2_file_operations timblogiw_fops = {
33860 +static __devinitconst v4l2_file_operations_no_const timblogiw_fops = {
33861 .owner = THIS_MODULE,
33862 .open = timblogiw_open,
33863 .release = timblogiw_close,
33864 diff --git a/drivers/message/fusion/mptbase.c b/drivers/message/fusion/mptbase.c
33865 index d99db56..a16b959 100644
33866 --- a/drivers/message/fusion/mptbase.c
33867 +++ b/drivers/message/fusion/mptbase.c
33868 @@ -6751,8 +6751,13 @@ static int mpt_iocinfo_proc_show(struct seq_file *m, void *v)
33869 seq_printf(m, " MaxChainDepth = 0x%02x frames\n", ioc->facts.MaxChainDepth);
33870 seq_printf(m, " MinBlockSize = 0x%02x bytes\n", 4*ioc->facts.BlockSize);
33871
33872 +#ifdef CONFIG_GRKERNSEC_HIDESYM
33873 + seq_printf(m, " RequestFrames @ 0x%p (Dma @ 0x%p)\n", NULL, NULL);
33874 +#else
33875 seq_printf(m, " RequestFrames @ 0x%p (Dma @ 0x%p)\n",
33876 (void *)ioc->req_frames, (void *)(ulong)ioc->req_frames_dma);
33877 +#endif
33878 +
33879 /*
33880 * Rounding UP to nearest 4-kB boundary here...
33881 */
33882 diff --git a/drivers/message/fusion/mptsas.c b/drivers/message/fusion/mptsas.c
33883 index 551262e..7551198 100644
33884 --- a/drivers/message/fusion/mptsas.c
33885 +++ b/drivers/message/fusion/mptsas.c
33886 @@ -446,6 +446,23 @@ mptsas_is_end_device(struct mptsas_devinfo * attached)
33887 return 0;
33888 }
33889
33890 +static inline void
33891 +mptsas_set_rphy(MPT_ADAPTER *ioc, struct mptsas_phyinfo *phy_info, struct sas_rphy *rphy)
33892 +{
33893 + if (phy_info->port_details) {
33894 + phy_info->port_details->rphy = rphy;
33895 + dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "sas_rphy_add: rphy=%p\n",
33896 + ioc->name, rphy));
33897 + }
33898 +
33899 + if (rphy) {
33900 + dsaswideprintk(ioc, dev_printk(KERN_DEBUG,
33901 + &rphy->dev, MYIOC_s_FMT "add:", ioc->name));
33902 + dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "rphy=%p release=%p\n",
33903 + ioc->name, rphy, rphy->dev.release));
33904 + }
33905 +}
33906 +
33907 /* no mutex */
33908 static void
33909 mptsas_port_delete(MPT_ADAPTER *ioc, struct mptsas_portinfo_details * port_details)
33910 @@ -484,23 +501,6 @@ mptsas_get_rphy(struct mptsas_phyinfo *phy_info)
33911 return NULL;
33912 }
33913
33914 -static inline void
33915 -mptsas_set_rphy(MPT_ADAPTER *ioc, struct mptsas_phyinfo *phy_info, struct sas_rphy *rphy)
33916 -{
33917 - if (phy_info->port_details) {
33918 - phy_info->port_details->rphy = rphy;
33919 - dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "sas_rphy_add: rphy=%p\n",
33920 - ioc->name, rphy));
33921 - }
33922 -
33923 - if (rphy) {
33924 - dsaswideprintk(ioc, dev_printk(KERN_DEBUG,
33925 - &rphy->dev, MYIOC_s_FMT "add:", ioc->name));
33926 - dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "rphy=%p release=%p\n",
33927 - ioc->name, rphy, rphy->dev.release));
33928 - }
33929 -}
33930 -
33931 static inline struct sas_port *
33932 mptsas_get_port(struct mptsas_phyinfo *phy_info)
33933 {
33934 diff --git a/drivers/message/fusion/mptscsih.c b/drivers/message/fusion/mptscsih.c
33935 index 0c3ced7..1fe34ec 100644
33936 --- a/drivers/message/fusion/mptscsih.c
33937 +++ b/drivers/message/fusion/mptscsih.c
33938 @@ -1270,15 +1270,16 @@ mptscsih_info(struct Scsi_Host *SChost)
33939
33940 h = shost_priv(SChost);
33941
33942 - if (h) {
33943 - if (h->info_kbuf == NULL)
33944 - if ((h->info_kbuf = kmalloc(0x1000 /* 4Kb */, GFP_KERNEL)) == NULL)
33945 - return h->info_kbuf;
33946 - h->info_kbuf[0] = '\0';
33947 + if (!h)
33948 + return NULL;
33949
33950 - mpt_print_ioc_summary(h->ioc, h->info_kbuf, &size, 0, 0);
33951 - h->info_kbuf[size-1] = '\0';
33952 - }
33953 + if (h->info_kbuf == NULL)
33954 + if ((h->info_kbuf = kmalloc(0x1000 /* 4Kb */, GFP_KERNEL)) == NULL)
33955 + return h->info_kbuf;
33956 + h->info_kbuf[0] = '\0';
33957 +
33958 + mpt_print_ioc_summary(h->ioc, h->info_kbuf, &size, 0, 0);
33959 + h->info_kbuf[size-1] = '\0';
33960
33961 return h->info_kbuf;
33962 }
33963 diff --git a/drivers/message/i2o/i2o_proc.c b/drivers/message/i2o/i2o_proc.c
33964 index 506c36f..b137580 100644
33965 --- a/drivers/message/i2o/i2o_proc.c
33966 +++ b/drivers/message/i2o/i2o_proc.c
33967 @@ -255,13 +255,6 @@ static char *scsi_devices[] = {
33968 "Array Controller Device"
33969 };
33970
33971 -static char *chtostr(u8 * chars, int n)
33972 -{
33973 - char tmp[256];
33974 - tmp[0] = 0;
33975 - return strncat(tmp, (char *)chars, n);
33976 -}
33977 -
33978 static int i2o_report_query_status(struct seq_file *seq, int block_status,
33979 char *group)
33980 {
33981 @@ -825,8 +818,7 @@ static int i2o_seq_show_ddm_table(struct seq_file *seq, void *v)
33982
33983 seq_printf(seq, "%-#7x", ddm_table.i2o_vendor_id);
33984 seq_printf(seq, "%-#8x", ddm_table.module_id);
33985 - seq_printf(seq, "%-29s",
33986 - chtostr(ddm_table.module_name_version, 28));
33987 + seq_printf(seq, "%-.28s", ddm_table.module_name_version);
33988 seq_printf(seq, "%9d ", ddm_table.data_size);
33989 seq_printf(seq, "%8d", ddm_table.code_size);
33990
33991 @@ -927,8 +919,8 @@ static int i2o_seq_show_drivers_stored(struct seq_file *seq, void *v)
33992
33993 seq_printf(seq, "%-#7x", dst->i2o_vendor_id);
33994 seq_printf(seq, "%-#8x", dst->module_id);
33995 - seq_printf(seq, "%-29s", chtostr(dst->module_name_version, 28));
33996 - seq_printf(seq, "%-9s", chtostr(dst->date, 8));
33997 + seq_printf(seq, "%-.28s", dst->module_name_version);
33998 + seq_printf(seq, "%-.8s", dst->date);
33999 seq_printf(seq, "%8d ", dst->module_size);
34000 seq_printf(seq, "%8d ", dst->mpb_size);
34001 seq_printf(seq, "0x%04x", dst->module_flags);
34002 @@ -1259,14 +1251,10 @@ static int i2o_seq_show_dev_identity(struct seq_file *seq, void *v)
34003 seq_printf(seq, "Device Class : %s\n", i2o_get_class_name(work16[0]));
34004 seq_printf(seq, "Owner TID : %0#5x\n", work16[2]);
34005 seq_printf(seq, "Parent TID : %0#5x\n", work16[3]);
34006 - seq_printf(seq, "Vendor info : %s\n",
34007 - chtostr((u8 *) (work32 + 2), 16));
34008 - seq_printf(seq, "Product info : %s\n",
34009 - chtostr((u8 *) (work32 + 6), 16));
34010 - seq_printf(seq, "Description : %s\n",
34011 - chtostr((u8 *) (work32 + 10), 16));
34012 - seq_printf(seq, "Product rev. : %s\n",
34013 - chtostr((u8 *) (work32 + 14), 8));
34014 + seq_printf(seq, "Vendor info : %.16s\n", (u8 *) (work32 + 2));
34015 + seq_printf(seq, "Product info : %.16s\n", (u8 *) (work32 + 6));
34016 + seq_printf(seq, "Description : %.16s\n", (u8 *) (work32 + 10));
34017 + seq_printf(seq, "Product rev. : %.8s\n", (u8 *) (work32 + 14));
34018
34019 seq_printf(seq, "Serial number : ");
34020 print_serial_number(seq, (u8 *) (work32 + 16),
34021 @@ -1311,10 +1299,8 @@ static int i2o_seq_show_ddm_identity(struct seq_file *seq, void *v)
34022 }
34023
34024 seq_printf(seq, "Registering DDM TID : 0x%03x\n", result.ddm_tid);
34025 - seq_printf(seq, "Module name : %s\n",
34026 - chtostr(result.module_name, 24));
34027 - seq_printf(seq, "Module revision : %s\n",
34028 - chtostr(result.module_rev, 8));
34029 + seq_printf(seq, "Module name : %.24s\n", result.module_name);
34030 + seq_printf(seq, "Module revision : %.8s\n", result.module_rev);
34031
34032 seq_printf(seq, "Serial number : ");
34033 print_serial_number(seq, result.serial_number, sizeof(result) - 36);
34034 @@ -1345,14 +1331,10 @@ static int i2o_seq_show_uinfo(struct seq_file *seq, void *v)
34035 return 0;
34036 }
34037
34038 - seq_printf(seq, "Device name : %s\n",
34039 - chtostr(result.device_name, 64));
34040 - seq_printf(seq, "Service name : %s\n",
34041 - chtostr(result.service_name, 64));
34042 - seq_printf(seq, "Physical name : %s\n",
34043 - chtostr(result.physical_location, 64));
34044 - seq_printf(seq, "Instance number : %s\n",
34045 - chtostr(result.instance_number, 4));
34046 + seq_printf(seq, "Device name : %.64s\n", result.device_name);
34047 + seq_printf(seq, "Service name : %.64s\n", result.service_name);
34048 + seq_printf(seq, "Physical name : %.64s\n", result.physical_location);
34049 + seq_printf(seq, "Instance number : %.4s\n", result.instance_number);
34050
34051 return 0;
34052 }
34053 diff --git a/drivers/message/i2o/iop.c b/drivers/message/i2o/iop.c
34054 index a8c08f3..155fe3d 100644
34055 --- a/drivers/message/i2o/iop.c
34056 +++ b/drivers/message/i2o/iop.c
34057 @@ -111,10 +111,10 @@ u32 i2o_cntxt_list_add(struct i2o_controller * c, void *ptr)
34058
34059 spin_lock_irqsave(&c->context_list_lock, flags);
34060
34061 - if (unlikely(atomic_inc_and_test(&c->context_list_counter)))
34062 - atomic_inc(&c->context_list_counter);
34063 + if (unlikely(atomic_inc_and_test_unchecked(&c->context_list_counter)))
34064 + atomic_inc_unchecked(&c->context_list_counter);
34065
34066 - entry->context = atomic_read(&c->context_list_counter);
34067 + entry->context = atomic_read_unchecked(&c->context_list_counter);
34068
34069 list_add(&entry->list, &c->context_list);
34070
34071 @@ -1077,7 +1077,7 @@ struct i2o_controller *i2o_iop_alloc(void)
34072
34073 #if BITS_PER_LONG == 64
34074 spin_lock_init(&c->context_list_lock);
34075 - atomic_set(&c->context_list_counter, 0);
34076 + atomic_set_unchecked(&c->context_list_counter, 0);
34077 INIT_LIST_HEAD(&c->context_list);
34078 #endif
34079
34080 diff --git a/drivers/mfd/abx500-core.c b/drivers/mfd/abx500-core.c
34081 index 7ce65f4..e66e9bc 100644
34082 --- a/drivers/mfd/abx500-core.c
34083 +++ b/drivers/mfd/abx500-core.c
34084 @@ -15,7 +15,7 @@ static LIST_HEAD(abx500_list);
34085
34086 struct abx500_device_entry {
34087 struct list_head list;
34088 - struct abx500_ops ops;
34089 + abx500_ops_no_const ops;
34090 struct device *dev;
34091 };
34092
34093 diff --git a/drivers/mfd/janz-cmodio.c b/drivers/mfd/janz-cmodio.c
34094 index 2ea9998..51dabee 100644
34095 --- a/drivers/mfd/janz-cmodio.c
34096 +++ b/drivers/mfd/janz-cmodio.c
34097 @@ -13,6 +13,7 @@
34098
34099 #include <linux/kernel.h>
34100 #include <linux/module.h>
34101 +#include <linux/slab.h>
34102 #include <linux/init.h>
34103 #include <linux/pci.h>
34104 #include <linux/interrupt.h>
34105 diff --git a/drivers/misc/lis3lv02d/lis3lv02d.c b/drivers/misc/lis3lv02d/lis3lv02d.c
34106 index a981e2a..5ca0c8b 100644
34107 --- a/drivers/misc/lis3lv02d/lis3lv02d.c
34108 +++ b/drivers/misc/lis3lv02d/lis3lv02d.c
34109 @@ -466,7 +466,7 @@ static irqreturn_t lis302dl_interrupt(int irq, void *data)
34110 * the lid is closed. This leads to interrupts as soon as a little move
34111 * is done.
34112 */
34113 - atomic_inc(&lis3->count);
34114 + atomic_inc_unchecked(&lis3->count);
34115
34116 wake_up_interruptible(&lis3->misc_wait);
34117 kill_fasync(&lis3->async_queue, SIGIO, POLL_IN);
34118 @@ -552,7 +552,7 @@ static int lis3lv02d_misc_open(struct inode *inode, struct file *file)
34119 if (lis3->pm_dev)
34120 pm_runtime_get_sync(lis3->pm_dev);
34121
34122 - atomic_set(&lis3->count, 0);
34123 + atomic_set_unchecked(&lis3->count, 0);
34124 return 0;
34125 }
34126
34127 @@ -585,7 +585,7 @@ static ssize_t lis3lv02d_misc_read(struct file *file, char __user *buf,
34128 add_wait_queue(&lis3->misc_wait, &wait);
34129 while (true) {
34130 set_current_state(TASK_INTERRUPTIBLE);
34131 - data = atomic_xchg(&lis3->count, 0);
34132 + data = atomic_xchg_unchecked(&lis3->count, 0);
34133 if (data)
34134 break;
34135
34136 @@ -626,7 +626,7 @@ static unsigned int lis3lv02d_misc_poll(struct file *file, poll_table *wait)
34137 struct lis3lv02d, miscdev);
34138
34139 poll_wait(file, &lis3->misc_wait, wait);
34140 - if (atomic_read(&lis3->count))
34141 + if (atomic_read_unchecked(&lis3->count))
34142 return POLLIN | POLLRDNORM;
34143 return 0;
34144 }
34145 diff --git a/drivers/misc/lis3lv02d/lis3lv02d.h b/drivers/misc/lis3lv02d/lis3lv02d.h
34146 index 2b1482a..5d33616 100644
34147 --- a/drivers/misc/lis3lv02d/lis3lv02d.h
34148 +++ b/drivers/misc/lis3lv02d/lis3lv02d.h
34149 @@ -266,7 +266,7 @@ struct lis3lv02d {
34150 struct input_polled_dev *idev; /* input device */
34151 struct platform_device *pdev; /* platform device */
34152 struct regulator_bulk_data regulators[2];
34153 - atomic_t count; /* interrupt count after last read */
34154 + atomic_unchecked_t count; /* interrupt count after last read */
34155 union axis_conversion ac; /* hw -> logical axis */
34156 int mapped_btns[3];
34157
34158 diff --git a/drivers/misc/lkdtm.c b/drivers/misc/lkdtm.c
34159 index 28adefe..08aad69 100644
34160 --- a/drivers/misc/lkdtm.c
34161 +++ b/drivers/misc/lkdtm.c
34162 @@ -477,6 +477,8 @@ static ssize_t lkdtm_debugfs_read(struct file *f, char __user *user_buf,
34163 int i, n, out;
34164
34165 buf = (char *)__get_free_page(GFP_KERNEL);
34166 + if (buf == NULL)
34167 + return -ENOMEM;
34168
34169 n = snprintf(buf, PAGE_SIZE, "Available crash types:\n");
34170 for (i = 0; i < ARRAY_SIZE(cp_type); i++)
34171 diff --git a/drivers/misc/sgi-gru/gruhandles.c b/drivers/misc/sgi-gru/gruhandles.c
34172 index 2f30bad..c4c13d0 100644
34173 --- a/drivers/misc/sgi-gru/gruhandles.c
34174 +++ b/drivers/misc/sgi-gru/gruhandles.c
34175 @@ -44,8 +44,8 @@ static void update_mcs_stats(enum mcs_op op, unsigned long clks)
34176 unsigned long nsec;
34177
34178 nsec = CLKS2NSEC(clks);
34179 - atomic_long_inc(&mcs_op_statistics[op].count);
34180 - atomic_long_add(nsec, &mcs_op_statistics[op].total);
34181 + atomic_long_inc_unchecked(&mcs_op_statistics[op].count);
34182 + atomic_long_add_unchecked(nsec, &mcs_op_statistics[op].total);
34183 if (mcs_op_statistics[op].max < nsec)
34184 mcs_op_statistics[op].max = nsec;
34185 }
34186 diff --git a/drivers/misc/sgi-gru/gruprocfs.c b/drivers/misc/sgi-gru/gruprocfs.c
34187 index 950dbe9..eeef0f8 100644
34188 --- a/drivers/misc/sgi-gru/gruprocfs.c
34189 +++ b/drivers/misc/sgi-gru/gruprocfs.c
34190 @@ -32,9 +32,9 @@
34191
34192 #define printstat(s, f) printstat_val(s, &gru_stats.f, #f)
34193
34194 -static void printstat_val(struct seq_file *s, atomic_long_t *v, char *id)
34195 +static void printstat_val(struct seq_file *s, atomic_long_unchecked_t *v, char *id)
34196 {
34197 - unsigned long val = atomic_long_read(v);
34198 + unsigned long val = atomic_long_read_unchecked(v);
34199
34200 seq_printf(s, "%16lu %s\n", val, id);
34201 }
34202 @@ -134,8 +134,8 @@ static int mcs_statistics_show(struct seq_file *s, void *p)
34203
34204 seq_printf(s, "%-20s%12s%12s%12s\n", "#id", "count", "aver-clks", "max-clks");
34205 for (op = 0; op < mcsop_last; op++) {
34206 - count = atomic_long_read(&mcs_op_statistics[op].count);
34207 - total = atomic_long_read(&mcs_op_statistics[op].total);
34208 + count = atomic_long_read_unchecked(&mcs_op_statistics[op].count);
34209 + total = atomic_long_read_unchecked(&mcs_op_statistics[op].total);
34210 max = mcs_op_statistics[op].max;
34211 seq_printf(s, "%-20s%12ld%12ld%12ld\n", id[op], count,
34212 count ? total / count : 0, max);
34213 diff --git a/drivers/misc/sgi-gru/grutables.h b/drivers/misc/sgi-gru/grutables.h
34214 index 5c3ce24..4915ccb 100644
34215 --- a/drivers/misc/sgi-gru/grutables.h
34216 +++ b/drivers/misc/sgi-gru/grutables.h
34217 @@ -167,82 +167,82 @@ extern unsigned int gru_max_gids;
34218 * GRU statistics.
34219 */
34220 struct gru_stats_s {
34221 - atomic_long_t vdata_alloc;
34222 - atomic_long_t vdata_free;
34223 - atomic_long_t gts_alloc;
34224 - atomic_long_t gts_free;
34225 - atomic_long_t gms_alloc;
34226 - atomic_long_t gms_free;
34227 - atomic_long_t gts_double_allocate;
34228 - atomic_long_t assign_context;
34229 - atomic_long_t assign_context_failed;
34230 - atomic_long_t free_context;
34231 - atomic_long_t load_user_context;
34232 - atomic_long_t load_kernel_context;
34233 - atomic_long_t lock_kernel_context;
34234 - atomic_long_t unlock_kernel_context;
34235 - atomic_long_t steal_user_context;
34236 - atomic_long_t steal_kernel_context;
34237 - atomic_long_t steal_context_failed;
34238 - atomic_long_t nopfn;
34239 - atomic_long_t asid_new;
34240 - atomic_long_t asid_next;
34241 - atomic_long_t asid_wrap;
34242 - atomic_long_t asid_reuse;
34243 - atomic_long_t intr;
34244 - atomic_long_t intr_cbr;
34245 - atomic_long_t intr_tfh;
34246 - atomic_long_t intr_spurious;
34247 - atomic_long_t intr_mm_lock_failed;
34248 - atomic_long_t call_os;
34249 - atomic_long_t call_os_wait_queue;
34250 - atomic_long_t user_flush_tlb;
34251 - atomic_long_t user_unload_context;
34252 - atomic_long_t user_exception;
34253 - atomic_long_t set_context_option;
34254 - atomic_long_t check_context_retarget_intr;
34255 - atomic_long_t check_context_unload;
34256 - atomic_long_t tlb_dropin;
34257 - atomic_long_t tlb_preload_page;
34258 - atomic_long_t tlb_dropin_fail_no_asid;
34259 - atomic_long_t tlb_dropin_fail_upm;
34260 - atomic_long_t tlb_dropin_fail_invalid;
34261 - atomic_long_t tlb_dropin_fail_range_active;
34262 - atomic_long_t tlb_dropin_fail_idle;
34263 - atomic_long_t tlb_dropin_fail_fmm;
34264 - atomic_long_t tlb_dropin_fail_no_exception;
34265 - atomic_long_t tfh_stale_on_fault;
34266 - atomic_long_t mmu_invalidate_range;
34267 - atomic_long_t mmu_invalidate_page;
34268 - atomic_long_t flush_tlb;
34269 - atomic_long_t flush_tlb_gru;
34270 - atomic_long_t flush_tlb_gru_tgh;
34271 - atomic_long_t flush_tlb_gru_zero_asid;
34272 + atomic_long_unchecked_t vdata_alloc;
34273 + atomic_long_unchecked_t vdata_free;
34274 + atomic_long_unchecked_t gts_alloc;
34275 + atomic_long_unchecked_t gts_free;
34276 + atomic_long_unchecked_t gms_alloc;
34277 + atomic_long_unchecked_t gms_free;
34278 + atomic_long_unchecked_t gts_double_allocate;
34279 + atomic_long_unchecked_t assign_context;
34280 + atomic_long_unchecked_t assign_context_failed;
34281 + atomic_long_unchecked_t free_context;
34282 + atomic_long_unchecked_t load_user_context;
34283 + atomic_long_unchecked_t load_kernel_context;
34284 + atomic_long_unchecked_t lock_kernel_context;
34285 + atomic_long_unchecked_t unlock_kernel_context;
34286 + atomic_long_unchecked_t steal_user_context;
34287 + atomic_long_unchecked_t steal_kernel_context;
34288 + atomic_long_unchecked_t steal_context_failed;
34289 + atomic_long_unchecked_t nopfn;
34290 + atomic_long_unchecked_t asid_new;
34291 + atomic_long_unchecked_t asid_next;
34292 + atomic_long_unchecked_t asid_wrap;
34293 + atomic_long_unchecked_t asid_reuse;
34294 + atomic_long_unchecked_t intr;
34295 + atomic_long_unchecked_t intr_cbr;
34296 + atomic_long_unchecked_t intr_tfh;
34297 + atomic_long_unchecked_t intr_spurious;
34298 + atomic_long_unchecked_t intr_mm_lock_failed;
34299 + atomic_long_unchecked_t call_os;
34300 + atomic_long_unchecked_t call_os_wait_queue;
34301 + atomic_long_unchecked_t user_flush_tlb;
34302 + atomic_long_unchecked_t user_unload_context;
34303 + atomic_long_unchecked_t user_exception;
34304 + atomic_long_unchecked_t set_context_option;
34305 + atomic_long_unchecked_t check_context_retarget_intr;
34306 + atomic_long_unchecked_t check_context_unload;
34307 + atomic_long_unchecked_t tlb_dropin;
34308 + atomic_long_unchecked_t tlb_preload_page;
34309 + atomic_long_unchecked_t tlb_dropin_fail_no_asid;
34310 + atomic_long_unchecked_t tlb_dropin_fail_upm;
34311 + atomic_long_unchecked_t tlb_dropin_fail_invalid;
34312 + atomic_long_unchecked_t tlb_dropin_fail_range_active;
34313 + atomic_long_unchecked_t tlb_dropin_fail_idle;
34314 + atomic_long_unchecked_t tlb_dropin_fail_fmm;
34315 + atomic_long_unchecked_t tlb_dropin_fail_no_exception;
34316 + atomic_long_unchecked_t tfh_stale_on_fault;
34317 + atomic_long_unchecked_t mmu_invalidate_range;
34318 + atomic_long_unchecked_t mmu_invalidate_page;
34319 + atomic_long_unchecked_t flush_tlb;
34320 + atomic_long_unchecked_t flush_tlb_gru;
34321 + atomic_long_unchecked_t flush_tlb_gru_tgh;
34322 + atomic_long_unchecked_t flush_tlb_gru_zero_asid;
34323
34324 - atomic_long_t copy_gpa;
34325 - atomic_long_t read_gpa;
34326 + atomic_long_unchecked_t copy_gpa;
34327 + atomic_long_unchecked_t read_gpa;
34328
34329 - atomic_long_t mesq_receive;
34330 - atomic_long_t mesq_receive_none;
34331 - atomic_long_t mesq_send;
34332 - atomic_long_t mesq_send_failed;
34333 - atomic_long_t mesq_noop;
34334 - atomic_long_t mesq_send_unexpected_error;
34335 - atomic_long_t mesq_send_lb_overflow;
34336 - atomic_long_t mesq_send_qlimit_reached;
34337 - atomic_long_t mesq_send_amo_nacked;
34338 - atomic_long_t mesq_send_put_nacked;
34339 - atomic_long_t mesq_page_overflow;
34340 - atomic_long_t mesq_qf_locked;
34341 - atomic_long_t mesq_qf_noop_not_full;
34342 - atomic_long_t mesq_qf_switch_head_failed;
34343 - atomic_long_t mesq_qf_unexpected_error;
34344 - atomic_long_t mesq_noop_unexpected_error;
34345 - atomic_long_t mesq_noop_lb_overflow;
34346 - atomic_long_t mesq_noop_qlimit_reached;
34347 - atomic_long_t mesq_noop_amo_nacked;
34348 - atomic_long_t mesq_noop_put_nacked;
34349 - atomic_long_t mesq_noop_page_overflow;
34350 + atomic_long_unchecked_t mesq_receive;
34351 + atomic_long_unchecked_t mesq_receive_none;
34352 + atomic_long_unchecked_t mesq_send;
34353 + atomic_long_unchecked_t mesq_send_failed;
34354 + atomic_long_unchecked_t mesq_noop;
34355 + atomic_long_unchecked_t mesq_send_unexpected_error;
34356 + atomic_long_unchecked_t mesq_send_lb_overflow;
34357 + atomic_long_unchecked_t mesq_send_qlimit_reached;
34358 + atomic_long_unchecked_t mesq_send_amo_nacked;
34359 + atomic_long_unchecked_t mesq_send_put_nacked;
34360 + atomic_long_unchecked_t mesq_page_overflow;
34361 + atomic_long_unchecked_t mesq_qf_locked;
34362 + atomic_long_unchecked_t mesq_qf_noop_not_full;
34363 + atomic_long_unchecked_t mesq_qf_switch_head_failed;
34364 + atomic_long_unchecked_t mesq_qf_unexpected_error;
34365 + atomic_long_unchecked_t mesq_noop_unexpected_error;
34366 + atomic_long_unchecked_t mesq_noop_lb_overflow;
34367 + atomic_long_unchecked_t mesq_noop_qlimit_reached;
34368 + atomic_long_unchecked_t mesq_noop_amo_nacked;
34369 + atomic_long_unchecked_t mesq_noop_put_nacked;
34370 + atomic_long_unchecked_t mesq_noop_page_overflow;
34371
34372 };
34373
34374 @@ -251,8 +251,8 @@ enum mcs_op {cchop_allocate, cchop_start, cchop_interrupt, cchop_interrupt_sync,
34375 tghop_invalidate, mcsop_last};
34376
34377 struct mcs_op_statistic {
34378 - atomic_long_t count;
34379 - atomic_long_t total;
34380 + atomic_long_unchecked_t count;
34381 + atomic_long_unchecked_t total;
34382 unsigned long max;
34383 };
34384
34385 @@ -275,7 +275,7 @@ extern struct mcs_op_statistic mcs_op_statistics[mcsop_last];
34386
34387 #define STAT(id) do { \
34388 if (gru_options & OPT_STATS) \
34389 - atomic_long_inc(&gru_stats.id); \
34390 + atomic_long_inc_unchecked(&gru_stats.id); \
34391 } while (0)
34392
34393 #ifdef CONFIG_SGI_GRU_DEBUG
34394 diff --git a/drivers/misc/sgi-xp/xp.h b/drivers/misc/sgi-xp/xp.h
34395 index c862cd4..0d176fe 100644
34396 --- a/drivers/misc/sgi-xp/xp.h
34397 +++ b/drivers/misc/sgi-xp/xp.h
34398 @@ -288,7 +288,7 @@ struct xpc_interface {
34399 xpc_notify_func, void *);
34400 void (*received) (short, int, void *);
34401 enum xp_retval (*partid_to_nasids) (short, void *);
34402 -};
34403 +} __no_const;
34404
34405 extern struct xpc_interface xpc_interface;
34406
34407 diff --git a/drivers/misc/sgi-xp/xpc.h b/drivers/misc/sgi-xp/xpc.h
34408 index b94d5f7..7f494c5 100644
34409 --- a/drivers/misc/sgi-xp/xpc.h
34410 +++ b/drivers/misc/sgi-xp/xpc.h
34411 @@ -835,6 +835,7 @@ struct xpc_arch_operations {
34412 void (*received_payload) (struct xpc_channel *, void *);
34413 void (*notify_senders_of_disconnect) (struct xpc_channel *);
34414 };
34415 +typedef struct xpc_arch_operations __no_const xpc_arch_operations_no_const;
34416
34417 /* struct xpc_partition act_state values (for XPC HB) */
34418
34419 @@ -876,7 +877,7 @@ extern struct xpc_registration xpc_registrations[];
34420 /* found in xpc_main.c */
34421 extern struct device *xpc_part;
34422 extern struct device *xpc_chan;
34423 -extern struct xpc_arch_operations xpc_arch_ops;
34424 +extern xpc_arch_operations_no_const xpc_arch_ops;
34425 extern int xpc_disengage_timelimit;
34426 extern int xpc_disengage_timedout;
34427 extern int xpc_activate_IRQ_rcvd;
34428 diff --git a/drivers/misc/sgi-xp/xpc_main.c b/drivers/misc/sgi-xp/xpc_main.c
34429 index 8d082b4..aa749ae 100644
34430 --- a/drivers/misc/sgi-xp/xpc_main.c
34431 +++ b/drivers/misc/sgi-xp/xpc_main.c
34432 @@ -162,7 +162,7 @@ static struct notifier_block xpc_die_notifier = {
34433 .notifier_call = xpc_system_die,
34434 };
34435
34436 -struct xpc_arch_operations xpc_arch_ops;
34437 +xpc_arch_operations_no_const xpc_arch_ops;
34438
34439 /*
34440 * Timer function to enforce the timelimit on the partition disengage.
34441 diff --git a/drivers/misc/ti-st/st_core.c b/drivers/misc/ti-st/st_core.c
34442 index 2b62232..acfaeeb 100644
34443 --- a/drivers/misc/ti-st/st_core.c
34444 +++ b/drivers/misc/ti-st/st_core.c
34445 @@ -349,6 +349,11 @@ void st_int_recv(void *disc_data,
34446 st_gdata->rx_skb = alloc_skb(
34447 st_gdata->list[type]->max_frame_size,
34448 GFP_ATOMIC);
34449 + if (st_gdata->rx_skb == NULL) {
34450 + pr_err("out of memory: dropping\n");
34451 + goto done;
34452 + }
34453 +
34454 skb_reserve(st_gdata->rx_skb,
34455 st_gdata->list[type]->reserve);
34456 /* next 2 required for BT only */
34457 diff --git a/drivers/mmc/host/sdhci-pci.c b/drivers/mmc/host/sdhci-pci.c
34458 index 504da71..9722d43 100644
34459 --- a/drivers/mmc/host/sdhci-pci.c
34460 +++ b/drivers/mmc/host/sdhci-pci.c
34461 @@ -653,7 +653,7 @@ static const struct sdhci_pci_fixes sdhci_via = {
34462 .probe = via_probe,
34463 };
34464
34465 -static const struct pci_device_id pci_ids[] __devinitdata = {
34466 +static const struct pci_device_id pci_ids[] __devinitconst = {
34467 {
34468 .vendor = PCI_VENDOR_ID_RICOH,
34469 .device = PCI_DEVICE_ID_RICOH_R5C822,
34470 diff --git a/drivers/mtd/devices/doc2000.c b/drivers/mtd/devices/doc2000.c
34471 index a4eb8b5..8c0628f 100644
34472 --- a/drivers/mtd/devices/doc2000.c
34473 +++ b/drivers/mtd/devices/doc2000.c
34474 @@ -753,7 +753,7 @@ static int doc_write(struct mtd_info *mtd, loff_t to, size_t len,
34475
34476 /* The ECC will not be calculated correctly if less than 512 is written */
34477 /* DBB-
34478 - if (len != 0x200 && eccbuf)
34479 + if (len != 0x200)
34480 printk(KERN_WARNING
34481 "ECC needs a full sector write (adr: %lx size %lx)\n",
34482 (long) to, (long) len);
34483 diff --git a/drivers/mtd/nand/denali.c b/drivers/mtd/nand/denali.c
34484 index 0650aaf..7718762 100644
34485 --- a/drivers/mtd/nand/denali.c
34486 +++ b/drivers/mtd/nand/denali.c
34487 @@ -26,6 +26,7 @@
34488 #include <linux/pci.h>
34489 #include <linux/mtd/mtd.h>
34490 #include <linux/module.h>
34491 +#include <linux/slab.h>
34492
34493 #include "denali.h"
34494
34495 diff --git a/drivers/mtd/nftlmount.c b/drivers/mtd/nftlmount.c
34496 index 51b9d6a..52af9a7 100644
34497 --- a/drivers/mtd/nftlmount.c
34498 +++ b/drivers/mtd/nftlmount.c
34499 @@ -24,6 +24,7 @@
34500 #include <asm/errno.h>
34501 #include <linux/delay.h>
34502 #include <linux/slab.h>
34503 +#include <linux/sched.h>
34504 #include <linux/mtd/mtd.h>
34505 #include <linux/mtd/nand.h>
34506 #include <linux/mtd/nftl.h>
34507 diff --git a/drivers/net/ethernet/atheros/atlx/atl2.c b/drivers/net/ethernet/atheros/atlx/atl2.c
34508 index 6762dc4..9956862 100644
34509 --- a/drivers/net/ethernet/atheros/atlx/atl2.c
34510 +++ b/drivers/net/ethernet/atheros/atlx/atl2.c
34511 @@ -2859,7 +2859,7 @@ static void atl2_force_ps(struct atl2_hw *hw)
34512 */
34513
34514 #define ATL2_PARAM(X, desc) \
34515 - static const int __devinitdata X[ATL2_MAX_NIC + 1] = ATL2_PARAM_INIT; \
34516 + static const int __devinitconst X[ATL2_MAX_NIC + 1] = ATL2_PARAM_INIT; \
34517 MODULE_PARM(X, "1-" __MODULE_STRING(ATL2_MAX_NIC) "i"); \
34518 MODULE_PARM_DESC(X, desc);
34519 #else
34520 diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.h
34521 index efd80bd..21fcff0 100644
34522 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.h
34523 +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.h
34524 @@ -487,7 +487,7 @@ struct bnx2x_rx_mode_obj {
34525
34526 int (*wait_comp)(struct bnx2x *bp,
34527 struct bnx2x_rx_mode_ramrod_params *p);
34528 -};
34529 +} __no_const;
34530
34531 /********************** Set multicast group ***********************************/
34532
34533 diff --git a/drivers/net/ethernet/broadcom/tg3.h b/drivers/net/ethernet/broadcom/tg3.h
34534 index 93865f8..5448741 100644
34535 --- a/drivers/net/ethernet/broadcom/tg3.h
34536 +++ b/drivers/net/ethernet/broadcom/tg3.h
34537 @@ -140,6 +140,7 @@
34538 #define CHIPREV_ID_5750_A0 0x4000
34539 #define CHIPREV_ID_5750_A1 0x4001
34540 #define CHIPREV_ID_5750_A3 0x4003
34541 +#define CHIPREV_ID_5750_C1 0x4201
34542 #define CHIPREV_ID_5750_C2 0x4202
34543 #define CHIPREV_ID_5752_A0_HW 0x5000
34544 #define CHIPREV_ID_5752_A0 0x6000
34545 diff --git a/drivers/net/ethernet/chelsio/cxgb3/l2t.h b/drivers/net/ethernet/chelsio/cxgb3/l2t.h
34546 index c4e8643..0979484 100644
34547 --- a/drivers/net/ethernet/chelsio/cxgb3/l2t.h
34548 +++ b/drivers/net/ethernet/chelsio/cxgb3/l2t.h
34549 @@ -87,7 +87,7 @@ typedef void (*arp_failure_handler_func)(struct t3cdev * dev,
34550 */
34551 struct l2t_skb_cb {
34552 arp_failure_handler_func arp_failure_handler;
34553 -};
34554 +} __no_const;
34555
34556 #define L2T_SKB_CB(skb) ((struct l2t_skb_cb *)(skb)->cb)
34557
34558 diff --git a/drivers/net/ethernet/dec/tulip/de4x5.c b/drivers/net/ethernet/dec/tulip/de4x5.c
34559 index d3cd489..0fd52dd 100644
34560 --- a/drivers/net/ethernet/dec/tulip/de4x5.c
34561 +++ b/drivers/net/ethernet/dec/tulip/de4x5.c
34562 @@ -5388,7 +5388,7 @@ de4x5_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
34563 for (i=0; i<ETH_ALEN; i++) {
34564 tmp.addr[i] = dev->dev_addr[i];
34565 }
34566 - if (copy_to_user(ioc->data, tmp.addr, ioc->len)) return -EFAULT;
34567 + if (ioc->len > sizeof tmp.addr || copy_to_user(ioc->data, tmp.addr, ioc->len)) return -EFAULT;
34568 break;
34569
34570 case DE4X5_SET_HWADDR: /* Set the hardware address */
34571 @@ -5428,7 +5428,7 @@ de4x5_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
34572 spin_lock_irqsave(&lp->lock, flags);
34573 memcpy(&statbuf, &lp->pktStats, ioc->len);
34574 spin_unlock_irqrestore(&lp->lock, flags);
34575 - if (copy_to_user(ioc->data, &statbuf, ioc->len))
34576 + if (ioc->len > sizeof statbuf || copy_to_user(ioc->data, &statbuf, ioc->len))
34577 return -EFAULT;
34578 break;
34579 }
34580 diff --git a/drivers/net/ethernet/dec/tulip/eeprom.c b/drivers/net/ethernet/dec/tulip/eeprom.c
34581 index ed7d1dc..d426748 100644
34582 --- a/drivers/net/ethernet/dec/tulip/eeprom.c
34583 +++ b/drivers/net/ethernet/dec/tulip/eeprom.c
34584 @@ -79,7 +79,7 @@ static struct eeprom_fixup eeprom_fixups[] __devinitdata = {
34585 {NULL}};
34586
34587
34588 -static const char *block_name[] __devinitdata = {
34589 +static const char *block_name[] __devinitconst = {
34590 "21140 non-MII",
34591 "21140 MII PHY",
34592 "21142 Serial PHY",
34593 diff --git a/drivers/net/ethernet/dec/tulip/uli526x.c b/drivers/net/ethernet/dec/tulip/uli526x.c
34594 index 75d45f8..3d9c55b 100644
34595 --- a/drivers/net/ethernet/dec/tulip/uli526x.c
34596 +++ b/drivers/net/ethernet/dec/tulip/uli526x.c
34597 @@ -129,7 +129,7 @@ struct uli526x_board_info {
34598 struct uli_phy_ops {
34599 void (*write)(struct uli526x_board_info *, u8, u8, u16);
34600 u16 (*read)(struct uli526x_board_info *, u8, u8);
34601 - } phy;
34602 + } __no_const phy;
34603 struct net_device *next_dev; /* next device */
34604 struct pci_dev *pdev; /* PCI device */
34605 spinlock_t lock;
34606 diff --git a/drivers/net/ethernet/dec/tulip/winbond-840.c b/drivers/net/ethernet/dec/tulip/winbond-840.c
34607 index 4d1ffca..7c1ec4d 100644
34608 --- a/drivers/net/ethernet/dec/tulip/winbond-840.c
34609 +++ b/drivers/net/ethernet/dec/tulip/winbond-840.c
34610 @@ -236,7 +236,7 @@ struct pci_id_info {
34611 int drv_flags; /* Driver use, intended as capability flags. */
34612 };
34613
34614 -static const struct pci_id_info pci_id_tbl[] __devinitdata = {
34615 +static const struct pci_id_info pci_id_tbl[] __devinitconst = {
34616 { /* Sometime a Level-One switch card. */
34617 "Winbond W89c840", CanHaveMII | HasBrokenTx | FDXOnNoMII},
34618 { "Winbond W89c840", CanHaveMII | HasBrokenTx},
34619 diff --git a/drivers/net/ethernet/dlink/sundance.c b/drivers/net/ethernet/dlink/sundance.c
34620 index d7bb52a..3b83588 100644
34621 --- a/drivers/net/ethernet/dlink/sundance.c
34622 +++ b/drivers/net/ethernet/dlink/sundance.c
34623 @@ -218,7 +218,7 @@ enum {
34624 struct pci_id_info {
34625 const char *name;
34626 };
34627 -static const struct pci_id_info pci_id_tbl[] __devinitdata = {
34628 +static const struct pci_id_info pci_id_tbl[] __devinitconst = {
34629 {"D-Link DFE-550TX FAST Ethernet Adapter"},
34630 {"D-Link DFE-550FX 100Mbps Fiber-optics Adapter"},
34631 {"D-Link DFE-580TX 4 port Server Adapter"},
34632 diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
34633 index bd5cf7e..c165651 100644
34634 --- a/drivers/net/ethernet/emulex/benet/be_main.c
34635 +++ b/drivers/net/ethernet/emulex/benet/be_main.c
34636 @@ -403,7 +403,7 @@ static void accumulate_16bit_val(u32 *acc, u16 val)
34637
34638 if (wrapped)
34639 newacc += 65536;
34640 - ACCESS_ONCE(*acc) = newacc;
34641 + ACCESS_ONCE_RW(*acc) = newacc;
34642 }
34643
34644 void be_parse_stats(struct be_adapter *adapter)
34645 diff --git a/drivers/net/ethernet/faraday/ftgmac100.c b/drivers/net/ethernet/faraday/ftgmac100.c
34646 index 16b0704..d2c07d7 100644
34647 --- a/drivers/net/ethernet/faraday/ftgmac100.c
34648 +++ b/drivers/net/ethernet/faraday/ftgmac100.c
34649 @@ -31,6 +31,8 @@
34650 #include <linux/netdevice.h>
34651 #include <linux/phy.h>
34652 #include <linux/platform_device.h>
34653 +#include <linux/interrupt.h>
34654 +#include <linux/irqreturn.h>
34655 #include <net/ip.h>
34656
34657 #include "ftgmac100.h"
34658 diff --git a/drivers/net/ethernet/faraday/ftmac100.c b/drivers/net/ethernet/faraday/ftmac100.c
34659 index 829b109..4ae5f6a 100644
34660 --- a/drivers/net/ethernet/faraday/ftmac100.c
34661 +++ b/drivers/net/ethernet/faraday/ftmac100.c
34662 @@ -31,6 +31,8 @@
34663 #include <linux/module.h>
34664 #include <linux/netdevice.h>
34665 #include <linux/platform_device.h>
34666 +#include <linux/interrupt.h>
34667 +#include <linux/irqreturn.h>
34668
34669 #include "ftmac100.h"
34670
34671 diff --git a/drivers/net/ethernet/fealnx.c b/drivers/net/ethernet/fealnx.c
34672 index 9d71c9c..0e4a0ac 100644
34673 --- a/drivers/net/ethernet/fealnx.c
34674 +++ b/drivers/net/ethernet/fealnx.c
34675 @@ -150,7 +150,7 @@ struct chip_info {
34676 int flags;
34677 };
34678
34679 -static const struct chip_info skel_netdrv_tbl[] __devinitdata = {
34680 +static const struct chip_info skel_netdrv_tbl[] __devinitconst = {
34681 { "100/10M Ethernet PCI Adapter", HAS_MII_XCVR },
34682 { "100/10M Ethernet PCI Adapter", HAS_CHIP_XCVR },
34683 { "1000/100/10M Ethernet PCI Adapter", HAS_MII_XCVR },
34684 diff --git a/drivers/net/ethernet/intel/e1000e/e1000.h b/drivers/net/ethernet/intel/e1000e/e1000.h
34685 index 6e6fffb..588f361 100644
34686 --- a/drivers/net/ethernet/intel/e1000e/e1000.h
34687 +++ b/drivers/net/ethernet/intel/e1000e/e1000.h
34688 @@ -181,7 +181,7 @@ struct e1000_info;
34689 #define E1000_TXDCTL_DMA_BURST_ENABLE \
34690 (E1000_TXDCTL_GRAN | /* set descriptor granularity */ \
34691 E1000_TXDCTL_COUNT_DESC | \
34692 - (5 << 16) | /* wthresh must be +1 more than desired */\
34693 + (1 << 16) | /* wthresh must be +1 more than desired */\
34694 (1 << 8) | /* hthresh */ \
34695 0x1f) /* pthresh */
34696
34697 diff --git a/drivers/net/ethernet/intel/e1000e/hw.h b/drivers/net/ethernet/intel/e1000e/hw.h
34698 index ed5b409..ec37828 100644
34699 --- a/drivers/net/ethernet/intel/e1000e/hw.h
34700 +++ b/drivers/net/ethernet/intel/e1000e/hw.h
34701 @@ -797,6 +797,7 @@ struct e1000_mac_operations {
34702 void (*rar_set)(struct e1000_hw *, u8 *, u32);
34703 s32 (*read_mac_addr)(struct e1000_hw *);
34704 };
34705 +typedef struct e1000_mac_operations __no_const e1000_mac_operations_no_const;
34706
34707 /*
34708 * When to use various PHY register access functions:
34709 @@ -837,6 +838,7 @@ struct e1000_phy_operations {
34710 void (*power_up)(struct e1000_hw *);
34711 void (*power_down)(struct e1000_hw *);
34712 };
34713 +typedef struct e1000_phy_operations __no_const e1000_phy_operations_no_const;
34714
34715 /* Function pointers for the NVM. */
34716 struct e1000_nvm_operations {
34717 @@ -849,9 +851,10 @@ struct e1000_nvm_operations {
34718 s32 (*validate)(struct e1000_hw *);
34719 s32 (*write)(struct e1000_hw *, u16, u16, u16 *);
34720 };
34721 +typedef struct e1000_nvm_operations __no_const e1000_nvm_operations_no_const;
34722
34723 struct e1000_mac_info {
34724 - struct e1000_mac_operations ops;
34725 + e1000_mac_operations_no_const ops;
34726 u8 addr[ETH_ALEN];
34727 u8 perm_addr[ETH_ALEN];
34728
34729 @@ -892,7 +895,7 @@ struct e1000_mac_info {
34730 };
34731
34732 struct e1000_phy_info {
34733 - struct e1000_phy_operations ops;
34734 + e1000_phy_operations_no_const ops;
34735
34736 enum e1000_phy_type type;
34737
34738 @@ -926,7 +929,7 @@ struct e1000_phy_info {
34739 };
34740
34741 struct e1000_nvm_info {
34742 - struct e1000_nvm_operations ops;
34743 + e1000_nvm_operations_no_const ops;
34744
34745 enum e1000_nvm_type type;
34746 enum e1000_nvm_override override;
34747 diff --git a/drivers/net/ethernet/intel/igb/e1000_hw.h b/drivers/net/ethernet/intel/igb/e1000_hw.h
34748 index c2a51dc..c2bd262 100644
34749 --- a/drivers/net/ethernet/intel/igb/e1000_hw.h
34750 +++ b/drivers/net/ethernet/intel/igb/e1000_hw.h
34751 @@ -327,6 +327,7 @@ struct e1000_mac_operations {
34752 void (*release_swfw_sync)(struct e1000_hw *, u16);
34753
34754 };
34755 +typedef struct e1000_mac_operations __no_const e1000_mac_operations_no_const;
34756
34757 struct e1000_phy_operations {
34758 s32 (*acquire)(struct e1000_hw *);
34759 @@ -343,6 +344,7 @@ struct e1000_phy_operations {
34760 s32 (*set_d3_lplu_state)(struct e1000_hw *, bool);
34761 s32 (*write_reg)(struct e1000_hw *, u32, u16);
34762 };
34763 +typedef struct e1000_phy_operations __no_const e1000_phy_operations_no_const;
34764
34765 struct e1000_nvm_operations {
34766 s32 (*acquire)(struct e1000_hw *);
34767 @@ -353,6 +355,7 @@ struct e1000_nvm_operations {
34768 s32 (*validate)(struct e1000_hw *);
34769 s32 (*valid_led_default)(struct e1000_hw *, u16 *);
34770 };
34771 +typedef struct e1000_nvm_operations __no_const e1000_nvm_operations_no_const;
34772
34773 struct e1000_info {
34774 s32 (*get_invariants)(struct e1000_hw *);
34775 @@ -364,7 +367,7 @@ struct e1000_info {
34776 extern const struct e1000_info e1000_82575_info;
34777
34778 struct e1000_mac_info {
34779 - struct e1000_mac_operations ops;
34780 + e1000_mac_operations_no_const ops;
34781
34782 u8 addr[6];
34783 u8 perm_addr[6];
34784 @@ -402,7 +405,7 @@ struct e1000_mac_info {
34785 };
34786
34787 struct e1000_phy_info {
34788 - struct e1000_phy_operations ops;
34789 + e1000_phy_operations_no_const ops;
34790
34791 enum e1000_phy_type type;
34792
34793 @@ -437,7 +440,7 @@ struct e1000_phy_info {
34794 };
34795
34796 struct e1000_nvm_info {
34797 - struct e1000_nvm_operations ops;
34798 + e1000_nvm_operations_no_const ops;
34799 enum e1000_nvm_type type;
34800 enum e1000_nvm_override override;
34801
34802 @@ -482,6 +485,7 @@ struct e1000_mbx_operations {
34803 s32 (*check_for_ack)(struct e1000_hw *, u16);
34804 s32 (*check_for_rst)(struct e1000_hw *, u16);
34805 };
34806 +typedef struct e1000_mbx_operations __no_const e1000_mbx_operations_no_const;
34807
34808 struct e1000_mbx_stats {
34809 u32 msgs_tx;
34810 @@ -493,7 +497,7 @@ struct e1000_mbx_stats {
34811 };
34812
34813 struct e1000_mbx_info {
34814 - struct e1000_mbx_operations ops;
34815 + e1000_mbx_operations_no_const ops;
34816 struct e1000_mbx_stats stats;
34817 u32 timeout;
34818 u32 usec_delay;
34819 diff --git a/drivers/net/ethernet/intel/igbvf/vf.h b/drivers/net/ethernet/intel/igbvf/vf.h
34820 index 57db3c6..aa825fc 100644
34821 --- a/drivers/net/ethernet/intel/igbvf/vf.h
34822 +++ b/drivers/net/ethernet/intel/igbvf/vf.h
34823 @@ -189,9 +189,10 @@ struct e1000_mac_operations {
34824 s32 (*read_mac_addr)(struct e1000_hw *);
34825 s32 (*set_vfta)(struct e1000_hw *, u16, bool);
34826 };
34827 +typedef struct e1000_mac_operations __no_const e1000_mac_operations_no_const;
34828
34829 struct e1000_mac_info {
34830 - struct e1000_mac_operations ops;
34831 + e1000_mac_operations_no_const ops;
34832 u8 addr[6];
34833 u8 perm_addr[6];
34834
34835 @@ -213,6 +214,7 @@ struct e1000_mbx_operations {
34836 s32 (*check_for_ack)(struct e1000_hw *);
34837 s32 (*check_for_rst)(struct e1000_hw *);
34838 };
34839 +typedef struct e1000_mbx_operations __no_const e1000_mbx_operations_no_const;
34840
34841 struct e1000_mbx_stats {
34842 u32 msgs_tx;
34843 @@ -224,7 +226,7 @@ struct e1000_mbx_stats {
34844 };
34845
34846 struct e1000_mbx_info {
34847 - struct e1000_mbx_operations ops;
34848 + e1000_mbx_operations_no_const ops;
34849 struct e1000_mbx_stats stats;
34850 u32 timeout;
34851 u32 usec_delay;
34852 diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c
34853 index dcebd12..c1fe8be 100644
34854 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c
34855 +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c
34856 @@ -805,7 +805,7 @@ void ixgbe_ptp_start_cyclecounter(struct ixgbe_adapter *adapter)
34857 /* store the new cycle speed */
34858 adapter->cycle_speed = cycle_speed;
34859
34860 - ACCESS_ONCE(adapter->base_incval) = incval;
34861 + ACCESS_ONCE_RW(adapter->base_incval) = incval;
34862 smp_mb();
34863
34864 /* grab the ptp lock */
34865 diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h b/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
34866 index 204848d..d8aeaec 100644
34867 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
34868 +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
34869 @@ -2791,6 +2791,7 @@ struct ixgbe_eeprom_operations {
34870 s32 (*update_checksum)(struct ixgbe_hw *);
34871 u16 (*calc_checksum)(struct ixgbe_hw *);
34872 };
34873 +typedef struct ixgbe_eeprom_operations __no_const ixgbe_eeprom_operations_no_const;
34874
34875 struct ixgbe_mac_operations {
34876 s32 (*init_hw)(struct ixgbe_hw *);
34877 @@ -2856,6 +2857,7 @@ struct ixgbe_mac_operations {
34878 s32 (*get_thermal_sensor_data)(struct ixgbe_hw *);
34879 s32 (*init_thermal_sensor_thresh)(struct ixgbe_hw *hw);
34880 };
34881 +typedef struct ixgbe_mac_operations __no_const ixgbe_mac_operations_no_const;
34882
34883 struct ixgbe_phy_operations {
34884 s32 (*identify)(struct ixgbe_hw *);
34885 @@ -2875,9 +2877,10 @@ struct ixgbe_phy_operations {
34886 s32 (*write_i2c_eeprom)(struct ixgbe_hw *, u8, u8);
34887 s32 (*check_overtemp)(struct ixgbe_hw *);
34888 };
34889 +typedef struct ixgbe_phy_operations __no_const ixgbe_phy_operations_no_const;
34890
34891 struct ixgbe_eeprom_info {
34892 - struct ixgbe_eeprom_operations ops;
34893 + ixgbe_eeprom_operations_no_const ops;
34894 enum ixgbe_eeprom_type type;
34895 u32 semaphore_delay;
34896 u16 word_size;
34897 @@ -2887,7 +2890,7 @@ struct ixgbe_eeprom_info {
34898
34899 #define IXGBE_FLAGS_DOUBLE_RESET_REQUIRED 0x01
34900 struct ixgbe_mac_info {
34901 - struct ixgbe_mac_operations ops;
34902 + ixgbe_mac_operations_no_const ops;
34903 enum ixgbe_mac_type type;
34904 u8 addr[ETH_ALEN];
34905 u8 perm_addr[ETH_ALEN];
34906 @@ -2916,7 +2919,7 @@ struct ixgbe_mac_info {
34907 };
34908
34909 struct ixgbe_phy_info {
34910 - struct ixgbe_phy_operations ops;
34911 + ixgbe_phy_operations_no_const ops;
34912 struct mdio_if_info mdio;
34913 enum ixgbe_phy_type type;
34914 u32 id;
34915 @@ -2944,6 +2947,7 @@ struct ixgbe_mbx_operations {
34916 s32 (*check_for_ack)(struct ixgbe_hw *, u16);
34917 s32 (*check_for_rst)(struct ixgbe_hw *, u16);
34918 };
34919 +typedef struct ixgbe_mbx_operations __no_const ixgbe_mbx_operations_no_const;
34920
34921 struct ixgbe_mbx_stats {
34922 u32 msgs_tx;
34923 @@ -2955,7 +2959,7 @@ struct ixgbe_mbx_stats {
34924 };
34925
34926 struct ixgbe_mbx_info {
34927 - struct ixgbe_mbx_operations ops;
34928 + ixgbe_mbx_operations_no_const ops;
34929 struct ixgbe_mbx_stats stats;
34930 u32 timeout;
34931 u32 usec_delay;
34932 diff --git a/drivers/net/ethernet/intel/ixgbevf/vf.h b/drivers/net/ethernet/intel/ixgbevf/vf.h
34933 index 25c951d..cc7cf33 100644
34934 --- a/drivers/net/ethernet/intel/ixgbevf/vf.h
34935 +++ b/drivers/net/ethernet/intel/ixgbevf/vf.h
34936 @@ -70,6 +70,7 @@ struct ixgbe_mac_operations {
34937 s32 (*clear_vfta)(struct ixgbe_hw *);
34938 s32 (*set_vfta)(struct ixgbe_hw *, u32, u32, bool);
34939 };
34940 +typedef struct ixgbe_mac_operations __no_const ixgbe_mac_operations_no_const;
34941
34942 enum ixgbe_mac_type {
34943 ixgbe_mac_unknown = 0,
34944 @@ -79,7 +80,7 @@ enum ixgbe_mac_type {
34945 };
34946
34947 struct ixgbe_mac_info {
34948 - struct ixgbe_mac_operations ops;
34949 + ixgbe_mac_operations_no_const ops;
34950 u8 addr[6];
34951 u8 perm_addr[6];
34952
34953 @@ -103,6 +104,7 @@ struct ixgbe_mbx_operations {
34954 s32 (*check_for_ack)(struct ixgbe_hw *);
34955 s32 (*check_for_rst)(struct ixgbe_hw *);
34956 };
34957 +typedef struct ixgbe_mbx_operations __no_const ixgbe_mbx_operations_no_const;
34958
34959 struct ixgbe_mbx_stats {
34960 u32 msgs_tx;
34961 @@ -114,7 +116,7 @@ struct ixgbe_mbx_stats {
34962 };
34963
34964 struct ixgbe_mbx_info {
34965 - struct ixgbe_mbx_operations ops;
34966 + ixgbe_mbx_operations_no_const ops;
34967 struct ixgbe_mbx_stats stats;
34968 u32 timeout;
34969 u32 udelay;
34970 diff --git a/drivers/net/ethernet/mellanox/mlx4/main.c b/drivers/net/ethernet/mellanox/mlx4/main.c
34971 index a0313de..e83a572 100644
34972 --- a/drivers/net/ethernet/mellanox/mlx4/main.c
34973 +++ b/drivers/net/ethernet/mellanox/mlx4/main.c
34974 @@ -41,6 +41,7 @@
34975 #include <linux/slab.h>
34976 #include <linux/io-mapping.h>
34977 #include <linux/delay.h>
34978 +#include <linux/sched.h>
34979
34980 #include <linux/mlx4/device.h>
34981 #include <linux/mlx4/doorbell.h>
34982 diff --git a/drivers/net/ethernet/neterion/vxge/vxge-config.h b/drivers/net/ethernet/neterion/vxge/vxge-config.h
34983 index 5046a64..71ca936 100644
34984 --- a/drivers/net/ethernet/neterion/vxge/vxge-config.h
34985 +++ b/drivers/net/ethernet/neterion/vxge/vxge-config.h
34986 @@ -514,7 +514,7 @@ struct vxge_hw_uld_cbs {
34987 void (*link_down)(struct __vxge_hw_device *devh);
34988 void (*crit_err)(struct __vxge_hw_device *devh,
34989 enum vxge_hw_event type, u64 ext_data);
34990 -};
34991 +} __no_const;
34992
34993 /*
34994 * struct __vxge_hw_blockpool_entry - Block private data structure
34995 diff --git a/drivers/net/ethernet/neterion/vxge/vxge-traffic.h b/drivers/net/ethernet/neterion/vxge/vxge-traffic.h
34996 index 4a518a3..936b334 100644
34997 --- a/drivers/net/ethernet/neterion/vxge/vxge-traffic.h
34998 +++ b/drivers/net/ethernet/neterion/vxge/vxge-traffic.h
34999 @@ -2088,7 +2088,7 @@ struct vxge_hw_mempool_cbs {
35000 struct vxge_hw_mempool_dma *dma_object,
35001 u32 index,
35002 u32 is_last);
35003 -};
35004 +} __no_const;
35005
35006 #define VXGE_HW_VIRTUAL_PATH_HANDLE(vpath) \
35007 ((struct __vxge_hw_vpath_handle *)(vpath)->vpath_handles.next)
35008 diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c
35009 index eb81da4..1592b62 100644
35010 --- a/drivers/net/ethernet/realtek/r8169.c
35011 +++ b/drivers/net/ethernet/realtek/r8169.c
35012 @@ -723,22 +723,22 @@ struct rtl8169_private {
35013 struct mdio_ops {
35014 void (*write)(void __iomem *, int, int);
35015 int (*read)(void __iomem *, int);
35016 - } mdio_ops;
35017 + } __no_const mdio_ops;
35018
35019 struct pll_power_ops {
35020 void (*down)(struct rtl8169_private *);
35021 void (*up)(struct rtl8169_private *);
35022 - } pll_power_ops;
35023 + } __no_const pll_power_ops;
35024
35025 struct jumbo_ops {
35026 void (*enable)(struct rtl8169_private *);
35027 void (*disable)(struct rtl8169_private *);
35028 - } jumbo_ops;
35029 + } __no_const jumbo_ops;
35030
35031 struct csi_ops {
35032 void (*write)(void __iomem *, int, int);
35033 u32 (*read)(void __iomem *, int);
35034 - } csi_ops;
35035 + } __no_const csi_ops;
35036
35037 int (*set_speed)(struct net_device *, u8 aneg, u16 sp, u8 dpx, u32 adv);
35038 int (*get_settings)(struct net_device *, struct ethtool_cmd *);
35039 diff --git a/drivers/net/ethernet/sis/sis190.c b/drivers/net/ethernet/sis/sis190.c
35040 index 4613591..d816601 100644
35041 --- a/drivers/net/ethernet/sis/sis190.c
35042 +++ b/drivers/net/ethernet/sis/sis190.c
35043 @@ -1618,7 +1618,7 @@ static int __devinit sis190_get_mac_addr_from_eeprom(struct pci_dev *pdev,
35044 static int __devinit sis190_get_mac_addr_from_apc(struct pci_dev *pdev,
35045 struct net_device *dev)
35046 {
35047 - static const u16 __devinitdata ids[] = { 0x0965, 0x0966, 0x0968 };
35048 + static const u16 __devinitconst ids[] = { 0x0965, 0x0966, 0x0968 };
35049 struct sis190_private *tp = netdev_priv(dev);
35050 struct pci_dev *isa_bridge;
35051 u8 reg, tmp8;
35052 diff --git a/drivers/net/ethernet/stmicro/stmmac/mmc_core.c b/drivers/net/ethernet/stmicro/stmmac/mmc_core.c
35053 index c07cfe9..81cbf7e 100644
35054 --- a/drivers/net/ethernet/stmicro/stmmac/mmc_core.c
35055 +++ b/drivers/net/ethernet/stmicro/stmmac/mmc_core.c
35056 @@ -140,8 +140,8 @@ void dwmac_mmc_ctrl(void __iomem *ioaddr, unsigned int mode)
35057
35058 writel(value, ioaddr + MMC_CNTRL);
35059
35060 - pr_debug("stmmac: MMC ctrl register (offset 0x%x): 0x%08x\n",
35061 - MMC_CNTRL, value);
35062 +// pr_debug("stmmac: MMC ctrl register (offset 0x%x): 0x%08x\n",
35063 +// MMC_CNTRL, value);
35064 }
35065
35066 /* To mask all all interrupts.*/
35067 diff --git a/drivers/net/hyperv/hyperv_net.h b/drivers/net/hyperv/hyperv_net.h
35068 index 2857ab0..9a1f9b0 100644
35069 --- a/drivers/net/hyperv/hyperv_net.h
35070 +++ b/drivers/net/hyperv/hyperv_net.h
35071 @@ -99,7 +99,7 @@ struct rndis_device {
35072
35073 enum rndis_device_state state;
35074 bool link_state;
35075 - atomic_t new_req_id;
35076 + atomic_unchecked_t new_req_id;
35077
35078 spinlock_t request_lock;
35079 struct list_head req_list;
35080 diff --git a/drivers/net/hyperv/rndis_filter.c b/drivers/net/hyperv/rndis_filter.c
35081 index 981ebb1..b34959b 100644
35082 --- a/drivers/net/hyperv/rndis_filter.c
35083 +++ b/drivers/net/hyperv/rndis_filter.c
35084 @@ -97,7 +97,7 @@ static struct rndis_request *get_rndis_request(struct rndis_device *dev,
35085 * template
35086 */
35087 set = &rndis_msg->msg.set_req;
35088 - set->req_id = atomic_inc_return(&dev->new_req_id);
35089 + set->req_id = atomic_inc_return_unchecked(&dev->new_req_id);
35090
35091 /* Add to the request list */
35092 spin_lock_irqsave(&dev->request_lock, flags);
35093 @@ -648,7 +648,7 @@ static void rndis_filter_halt_device(struct rndis_device *dev)
35094
35095 /* Setup the rndis set */
35096 halt = &request->request_msg.msg.halt_req;
35097 - halt->req_id = atomic_inc_return(&dev->new_req_id);
35098 + halt->req_id = atomic_inc_return_unchecked(&dev->new_req_id);
35099
35100 /* Ignore return since this msg is optional. */
35101 rndis_filter_send_request(dev, request);
35102 diff --git a/drivers/net/ppp/ppp_generic.c b/drivers/net/ppp/ppp_generic.c
35103 index 5c05572..389610b 100644
35104 --- a/drivers/net/ppp/ppp_generic.c
35105 +++ b/drivers/net/ppp/ppp_generic.c
35106 @@ -986,7 +986,6 @@ ppp_net_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
35107 void __user *addr = (void __user *) ifr->ifr_ifru.ifru_data;
35108 struct ppp_stats stats;
35109 struct ppp_comp_stats cstats;
35110 - char *vers;
35111
35112 switch (cmd) {
35113 case SIOCGPPPSTATS:
35114 @@ -1008,8 +1007,7 @@ ppp_net_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
35115 break;
35116
35117 case SIOCGPPPVER:
35118 - vers = PPP_VERSION;
35119 - if (copy_to_user(addr, vers, strlen(vers) + 1))
35120 + if (copy_to_user(addr, PPP_VERSION, sizeof(PPP_VERSION)))
35121 break;
35122 err = 0;
35123 break;
35124 diff --git a/drivers/net/usb/hso.c b/drivers/net/usb/hso.c
35125 index 62f30b4..ff99dfd 100644
35126 --- a/drivers/net/usb/hso.c
35127 +++ b/drivers/net/usb/hso.c
35128 @@ -71,7 +71,7 @@
35129 #include <asm/byteorder.h>
35130 #include <linux/serial_core.h>
35131 #include <linux/serial.h>
35132 -
35133 +#include <asm/local.h>
35134
35135 #define MOD_AUTHOR "Option Wireless"
35136 #define MOD_DESCRIPTION "USB High Speed Option driver"
35137 @@ -1182,7 +1182,7 @@ static void put_rxbuf_data_and_resubmit_ctrl_urb(struct hso_serial *serial)
35138 struct urb *urb;
35139
35140 urb = serial->rx_urb[0];
35141 - if (serial->port.count > 0) {
35142 + if (atomic_read(&serial->port.count) > 0) {
35143 count = put_rxbuf_data(urb, serial);
35144 if (count == -1)
35145 return;
35146 @@ -1218,7 +1218,7 @@ static void hso_std_serial_read_bulk_callback(struct urb *urb)
35147 DUMP1(urb->transfer_buffer, urb->actual_length);
35148
35149 /* Anyone listening? */
35150 - if (serial->port.count == 0)
35151 + if (atomic_read(&serial->port.count) == 0)
35152 return;
35153
35154 if (status == 0) {
35155 @@ -1300,8 +1300,7 @@ static int hso_serial_open(struct tty_struct *tty, struct file *filp)
35156 tty_port_tty_set(&serial->port, tty);
35157
35158 /* check for port already opened, if not set the termios */
35159 - serial->port.count++;
35160 - if (serial->port.count == 1) {
35161 + if (atomic_inc_return(&serial->port.count) == 1) {
35162 serial->rx_state = RX_IDLE;
35163 /* Force default termio settings */
35164 _hso_serial_set_termios(tty, NULL);
35165 @@ -1313,7 +1312,7 @@ static int hso_serial_open(struct tty_struct *tty, struct file *filp)
35166 result = hso_start_serial_device(serial->parent, GFP_KERNEL);
35167 if (result) {
35168 hso_stop_serial_device(serial->parent);
35169 - serial->port.count--;
35170 + atomic_dec(&serial->port.count);
35171 kref_put(&serial->parent->ref, hso_serial_ref_free);
35172 }
35173 } else {
35174 @@ -1350,10 +1349,10 @@ static void hso_serial_close(struct tty_struct *tty, struct file *filp)
35175
35176 /* reset the rts and dtr */
35177 /* do the actual close */
35178 - serial->port.count--;
35179 + atomic_dec(&serial->port.count);
35180
35181 - if (serial->port.count <= 0) {
35182 - serial->port.count = 0;
35183 + if (atomic_read(&serial->port.count) <= 0) {
35184 + atomic_set(&serial->port.count, 0);
35185 tty_port_tty_set(&serial->port, NULL);
35186 if (!usb_gone)
35187 hso_stop_serial_device(serial->parent);
35188 @@ -1429,7 +1428,7 @@ static void hso_serial_set_termios(struct tty_struct *tty, struct ktermios *old)
35189
35190 /* the actual setup */
35191 spin_lock_irqsave(&serial->serial_lock, flags);
35192 - if (serial->port.count)
35193 + if (atomic_read(&serial->port.count))
35194 _hso_serial_set_termios(tty, old);
35195 else
35196 tty->termios = old;
35197 @@ -1888,7 +1887,7 @@ static void intr_callback(struct urb *urb)
35198 D1("Pending read interrupt on port %d\n", i);
35199 spin_lock(&serial->serial_lock);
35200 if (serial->rx_state == RX_IDLE &&
35201 - serial->port.count > 0) {
35202 + atomic_read(&serial->port.count) > 0) {
35203 /* Setup and send a ctrl req read on
35204 * port i */
35205 if (!serial->rx_urb_filled[0]) {
35206 @@ -3079,7 +3078,7 @@ static int hso_resume(struct usb_interface *iface)
35207 /* Start all serial ports */
35208 for (i = 0; i < HSO_SERIAL_TTY_MINORS; i++) {
35209 if (serial_table[i] && (serial_table[i]->interface == iface)) {
35210 - if (dev2ser(serial_table[i])->port.count) {
35211 + if (atomic_read(&dev2ser(serial_table[i])->port.count)) {
35212 result =
35213 hso_start_serial_device(serial_table[i], GFP_NOIO);
35214 hso_kick_transmit(dev2ser(serial_table[i]));
35215 diff --git a/drivers/net/wireless/ath/ath.h b/drivers/net/wireless/ath/ath.h
35216 index 420d69b..74f90a2 100644
35217 --- a/drivers/net/wireless/ath/ath.h
35218 +++ b/drivers/net/wireless/ath/ath.h
35219 @@ -119,6 +119,7 @@ struct ath_ops {
35220 void (*write_flush) (void *);
35221 u32 (*rmw)(void *, u32 reg_offset, u32 set, u32 clr);
35222 };
35223 +typedef struct ath_ops __no_const ath_ops_no_const;
35224
35225 struct ath_common;
35226 struct ath_bus_ops;
35227 diff --git a/drivers/net/wireless/ath/ath9k/ar9002_mac.c b/drivers/net/wireless/ath/ath9k/ar9002_mac.c
35228 index 8d78253..bebbb68 100644
35229 --- a/drivers/net/wireless/ath/ath9k/ar9002_mac.c
35230 +++ b/drivers/net/wireless/ath/ath9k/ar9002_mac.c
35231 @@ -184,8 +184,8 @@ ar9002_set_txdesc(struct ath_hw *ah, void *ds, struct ath_tx_info *i)
35232 ads->ds_txstatus6 = ads->ds_txstatus7 = 0;
35233 ads->ds_txstatus8 = ads->ds_txstatus9 = 0;
35234
35235 - ACCESS_ONCE(ads->ds_link) = i->link;
35236 - ACCESS_ONCE(ads->ds_data) = i->buf_addr[0];
35237 + ACCESS_ONCE_RW(ads->ds_link) = i->link;
35238 + ACCESS_ONCE_RW(ads->ds_data) = i->buf_addr[0];
35239
35240 ctl1 = i->buf_len[0] | (i->is_last ? 0 : AR_TxMore);
35241 ctl6 = SM(i->keytype, AR_EncrType);
35242 @@ -199,26 +199,26 @@ ar9002_set_txdesc(struct ath_hw *ah, void *ds, struct ath_tx_info *i)
35243
35244 if ((i->is_first || i->is_last) &&
35245 i->aggr != AGGR_BUF_MIDDLE && i->aggr != AGGR_BUF_LAST) {
35246 - ACCESS_ONCE(ads->ds_ctl2) = set11nTries(i->rates, 0)
35247 + ACCESS_ONCE_RW(ads->ds_ctl2) = set11nTries(i->rates, 0)
35248 | set11nTries(i->rates, 1)
35249 | set11nTries(i->rates, 2)
35250 | set11nTries(i->rates, 3)
35251 | (i->dur_update ? AR_DurUpdateEna : 0)
35252 | SM(0, AR_BurstDur);
35253
35254 - ACCESS_ONCE(ads->ds_ctl3) = set11nRate(i->rates, 0)
35255 + ACCESS_ONCE_RW(ads->ds_ctl3) = set11nRate(i->rates, 0)
35256 | set11nRate(i->rates, 1)
35257 | set11nRate(i->rates, 2)
35258 | set11nRate(i->rates, 3);
35259 } else {
35260 - ACCESS_ONCE(ads->ds_ctl2) = 0;
35261 - ACCESS_ONCE(ads->ds_ctl3) = 0;
35262 + ACCESS_ONCE_RW(ads->ds_ctl2) = 0;
35263 + ACCESS_ONCE_RW(ads->ds_ctl3) = 0;
35264 }
35265
35266 if (!i->is_first) {
35267 - ACCESS_ONCE(ads->ds_ctl0) = 0;
35268 - ACCESS_ONCE(ads->ds_ctl1) = ctl1;
35269 - ACCESS_ONCE(ads->ds_ctl6) = ctl6;
35270 + ACCESS_ONCE_RW(ads->ds_ctl0) = 0;
35271 + ACCESS_ONCE_RW(ads->ds_ctl1) = ctl1;
35272 + ACCESS_ONCE_RW(ads->ds_ctl6) = ctl6;
35273 return;
35274 }
35275
35276 @@ -243,7 +243,7 @@ ar9002_set_txdesc(struct ath_hw *ah, void *ds, struct ath_tx_info *i)
35277 break;
35278 }
35279
35280 - ACCESS_ONCE(ads->ds_ctl0) = (i->pkt_len & AR_FrameLen)
35281 + ACCESS_ONCE_RW(ads->ds_ctl0) = (i->pkt_len & AR_FrameLen)
35282 | (i->flags & ATH9K_TXDESC_VMF ? AR_VirtMoreFrag : 0)
35283 | SM(i->txpower, AR_XmitPower)
35284 | (i->flags & ATH9K_TXDESC_VEOL ? AR_VEOL : 0)
35285 @@ -253,19 +253,19 @@ ar9002_set_txdesc(struct ath_hw *ah, void *ds, struct ath_tx_info *i)
35286 | (i->flags & ATH9K_TXDESC_RTSENA ? AR_RTSEnable :
35287 (i->flags & ATH9K_TXDESC_CTSENA ? AR_CTSEnable : 0));
35288
35289 - ACCESS_ONCE(ads->ds_ctl1) = ctl1;
35290 - ACCESS_ONCE(ads->ds_ctl6) = ctl6;
35291 + ACCESS_ONCE_RW(ads->ds_ctl1) = ctl1;
35292 + ACCESS_ONCE_RW(ads->ds_ctl6) = ctl6;
35293
35294 if (i->aggr == AGGR_BUF_MIDDLE || i->aggr == AGGR_BUF_LAST)
35295 return;
35296
35297 - ACCESS_ONCE(ads->ds_ctl4) = set11nPktDurRTSCTS(i->rates, 0)
35298 + ACCESS_ONCE_RW(ads->ds_ctl4) = set11nPktDurRTSCTS(i->rates, 0)
35299 | set11nPktDurRTSCTS(i->rates, 1);
35300
35301 - ACCESS_ONCE(ads->ds_ctl5) = set11nPktDurRTSCTS(i->rates, 2)
35302 + ACCESS_ONCE_RW(ads->ds_ctl5) = set11nPktDurRTSCTS(i->rates, 2)
35303 | set11nPktDurRTSCTS(i->rates, 3);
35304
35305 - ACCESS_ONCE(ads->ds_ctl7) = set11nRateFlags(i->rates, 0)
35306 + ACCESS_ONCE_RW(ads->ds_ctl7) = set11nRateFlags(i->rates, 0)
35307 | set11nRateFlags(i->rates, 1)
35308 | set11nRateFlags(i->rates, 2)
35309 | set11nRateFlags(i->rates, 3)
35310 diff --git a/drivers/net/wireless/ath/ath9k/ar9003_mac.c b/drivers/net/wireless/ath/ath9k/ar9003_mac.c
35311 index d9e0824..1a874e7 100644
35312 --- a/drivers/net/wireless/ath/ath9k/ar9003_mac.c
35313 +++ b/drivers/net/wireless/ath/ath9k/ar9003_mac.c
35314 @@ -39,47 +39,47 @@ ar9003_set_txdesc(struct ath_hw *ah, void *ds, struct ath_tx_info *i)
35315 (i->qcu << AR_TxQcuNum_S) | desc_len;
35316
35317 checksum += val;
35318 - ACCESS_ONCE(ads->info) = val;
35319 + ACCESS_ONCE_RW(ads->info) = val;
35320
35321 checksum += i->link;
35322 - ACCESS_ONCE(ads->link) = i->link;
35323 + ACCESS_ONCE_RW(ads->link) = i->link;
35324
35325 checksum += i->buf_addr[0];
35326 - ACCESS_ONCE(ads->data0) = i->buf_addr[0];
35327 + ACCESS_ONCE_RW(ads->data0) = i->buf_addr[0];
35328 checksum += i->buf_addr[1];
35329 - ACCESS_ONCE(ads->data1) = i->buf_addr[1];
35330 + ACCESS_ONCE_RW(ads->data1) = i->buf_addr[1];
35331 checksum += i->buf_addr[2];
35332 - ACCESS_ONCE(ads->data2) = i->buf_addr[2];
35333 + ACCESS_ONCE_RW(ads->data2) = i->buf_addr[2];
35334 checksum += i->buf_addr[3];
35335 - ACCESS_ONCE(ads->data3) = i->buf_addr[3];
35336 + ACCESS_ONCE_RW(ads->data3) = i->buf_addr[3];
35337
35338 checksum += (val = (i->buf_len[0] << AR_BufLen_S) & AR_BufLen);
35339 - ACCESS_ONCE(ads->ctl3) = val;
35340 + ACCESS_ONCE_RW(ads->ctl3) = val;
35341 checksum += (val = (i->buf_len[1] << AR_BufLen_S) & AR_BufLen);
35342 - ACCESS_ONCE(ads->ctl5) = val;
35343 + ACCESS_ONCE_RW(ads->ctl5) = val;
35344 checksum += (val = (i->buf_len[2] << AR_BufLen_S) & AR_BufLen);
35345 - ACCESS_ONCE(ads->ctl7) = val;
35346 + ACCESS_ONCE_RW(ads->ctl7) = val;
35347 checksum += (val = (i->buf_len[3] << AR_BufLen_S) & AR_BufLen);
35348 - ACCESS_ONCE(ads->ctl9) = val;
35349 + ACCESS_ONCE_RW(ads->ctl9) = val;
35350
35351 checksum = (u16) (((checksum & 0xffff) + (checksum >> 16)) & 0xffff);
35352 - ACCESS_ONCE(ads->ctl10) = checksum;
35353 + ACCESS_ONCE_RW(ads->ctl10) = checksum;
35354
35355 if (i->is_first || i->is_last) {
35356 - ACCESS_ONCE(ads->ctl13) = set11nTries(i->rates, 0)
35357 + ACCESS_ONCE_RW(ads->ctl13) = set11nTries(i->rates, 0)
35358 | set11nTries(i->rates, 1)
35359 | set11nTries(i->rates, 2)
35360 | set11nTries(i->rates, 3)
35361 | (i->dur_update ? AR_DurUpdateEna : 0)
35362 | SM(0, AR_BurstDur);
35363
35364 - ACCESS_ONCE(ads->ctl14) = set11nRate(i->rates, 0)
35365 + ACCESS_ONCE_RW(ads->ctl14) = set11nRate(i->rates, 0)
35366 | set11nRate(i->rates, 1)
35367 | set11nRate(i->rates, 2)
35368 | set11nRate(i->rates, 3);
35369 } else {
35370 - ACCESS_ONCE(ads->ctl13) = 0;
35371 - ACCESS_ONCE(ads->ctl14) = 0;
35372 + ACCESS_ONCE_RW(ads->ctl13) = 0;
35373 + ACCESS_ONCE_RW(ads->ctl14) = 0;
35374 }
35375
35376 ads->ctl20 = 0;
35377 @@ -89,17 +89,17 @@ ar9003_set_txdesc(struct ath_hw *ah, void *ds, struct ath_tx_info *i)
35378
35379 ctl17 = SM(i->keytype, AR_EncrType);
35380 if (!i->is_first) {
35381 - ACCESS_ONCE(ads->ctl11) = 0;
35382 - ACCESS_ONCE(ads->ctl12) = i->is_last ? 0 : AR_TxMore;
35383 - ACCESS_ONCE(ads->ctl15) = 0;
35384 - ACCESS_ONCE(ads->ctl16) = 0;
35385 - ACCESS_ONCE(ads->ctl17) = ctl17;
35386 - ACCESS_ONCE(ads->ctl18) = 0;
35387 - ACCESS_ONCE(ads->ctl19) = 0;
35388 + ACCESS_ONCE_RW(ads->ctl11) = 0;
35389 + ACCESS_ONCE_RW(ads->ctl12) = i->is_last ? 0 : AR_TxMore;
35390 + ACCESS_ONCE_RW(ads->ctl15) = 0;
35391 + ACCESS_ONCE_RW(ads->ctl16) = 0;
35392 + ACCESS_ONCE_RW(ads->ctl17) = ctl17;
35393 + ACCESS_ONCE_RW(ads->ctl18) = 0;
35394 + ACCESS_ONCE_RW(ads->ctl19) = 0;
35395 return;
35396 }
35397
35398 - ACCESS_ONCE(ads->ctl11) = (i->pkt_len & AR_FrameLen)
35399 + ACCESS_ONCE_RW(ads->ctl11) = (i->pkt_len & AR_FrameLen)
35400 | (i->flags & ATH9K_TXDESC_VMF ? AR_VirtMoreFrag : 0)
35401 | SM(i->txpower, AR_XmitPower)
35402 | (i->flags & ATH9K_TXDESC_VEOL ? AR_VEOL : 0)
35403 @@ -135,22 +135,22 @@ ar9003_set_txdesc(struct ath_hw *ah, void *ds, struct ath_tx_info *i)
35404 val = (i->flags & ATH9K_TXDESC_PAPRD) >> ATH9K_TXDESC_PAPRD_S;
35405 ctl12 |= SM(val, AR_PAPRDChainMask);
35406
35407 - ACCESS_ONCE(ads->ctl12) = ctl12;
35408 - ACCESS_ONCE(ads->ctl17) = ctl17;
35409 + ACCESS_ONCE_RW(ads->ctl12) = ctl12;
35410 + ACCESS_ONCE_RW(ads->ctl17) = ctl17;
35411
35412 - ACCESS_ONCE(ads->ctl15) = set11nPktDurRTSCTS(i->rates, 0)
35413 + ACCESS_ONCE_RW(ads->ctl15) = set11nPktDurRTSCTS(i->rates, 0)
35414 | set11nPktDurRTSCTS(i->rates, 1);
35415
35416 - ACCESS_ONCE(ads->ctl16) = set11nPktDurRTSCTS(i->rates, 2)
35417 + ACCESS_ONCE_RW(ads->ctl16) = set11nPktDurRTSCTS(i->rates, 2)
35418 | set11nPktDurRTSCTS(i->rates, 3);
35419
35420 - ACCESS_ONCE(ads->ctl18) = set11nRateFlags(i->rates, 0)
35421 + ACCESS_ONCE_RW(ads->ctl18) = set11nRateFlags(i->rates, 0)
35422 | set11nRateFlags(i->rates, 1)
35423 | set11nRateFlags(i->rates, 2)
35424 | set11nRateFlags(i->rates, 3)
35425 | SM(i->rtscts_rate, AR_RTSCTSRate);
35426
35427 - ACCESS_ONCE(ads->ctl19) = AR_Not_Sounding;
35428 + ACCESS_ONCE_RW(ads->ctl19) = AR_Not_Sounding;
35429 }
35430
35431 static u16 ar9003_calc_ptr_chksum(struct ar9003_txc *ads)
35432 diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h
35433 index 02f5007..bd0bd8f 100644
35434 --- a/drivers/net/wireless/ath/ath9k/hw.h
35435 +++ b/drivers/net/wireless/ath/ath9k/hw.h
35436 @@ -610,7 +610,7 @@ struct ath_hw_private_ops {
35437
35438 /* ANI */
35439 void (*ani_cache_ini_regs)(struct ath_hw *ah);
35440 -};
35441 +} __no_const;
35442
35443 /**
35444 * struct ath_hw_ops - callbacks used by hardware code and driver code
35445 @@ -640,7 +640,7 @@ struct ath_hw_ops {
35446 void (*antdiv_comb_conf_set)(struct ath_hw *ah,
35447 struct ath_hw_antcomb_conf *antconf);
35448
35449 -};
35450 +} __no_const;
35451
35452 struct ath_nf_limits {
35453 s16 max;
35454 @@ -660,7 +660,7 @@ enum ath_cal_list {
35455 #define AH_FASTCC 0x4
35456
35457 struct ath_hw {
35458 - struct ath_ops reg_ops;
35459 + ath_ops_no_const reg_ops;
35460
35461 struct ieee80211_hw *hw;
35462 struct ath_common common;
35463 diff --git a/drivers/net/wireless/brcm80211/brcmsmac/phy/phy_int.h b/drivers/net/wireless/brcm80211/brcmsmac/phy/phy_int.h
35464 index af00e2c..ab04d34 100644
35465 --- a/drivers/net/wireless/brcm80211/brcmsmac/phy/phy_int.h
35466 +++ b/drivers/net/wireless/brcm80211/brcmsmac/phy/phy_int.h
35467 @@ -545,7 +545,7 @@ struct phy_func_ptr {
35468 void (*carrsuppr)(struct brcms_phy *);
35469 s32 (*rxsigpwr)(struct brcms_phy *, s32);
35470 void (*detach)(struct brcms_phy *);
35471 -};
35472 +} __no_const;
35473
35474 struct brcms_phy {
35475 struct brcms_phy_pub pubpi_ro;
35476 diff --git a/drivers/net/wireless/iwlegacy/3945-mac.c b/drivers/net/wireless/iwlegacy/3945-mac.c
35477 index faec404..a5277f1 100644
35478 --- a/drivers/net/wireless/iwlegacy/3945-mac.c
35479 +++ b/drivers/net/wireless/iwlegacy/3945-mac.c
35480 @@ -3611,7 +3611,9 @@ il3945_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
35481 */
35482 if (il3945_mod_params.disable_hw_scan) {
35483 D_INFO("Disabling hw_scan\n");
35484 - il3945_mac_ops.hw_scan = NULL;
35485 + pax_open_kernel();
35486 + *(void **)&il3945_mac_ops.hw_scan = NULL;
35487 + pax_close_kernel();
35488 }
35489
35490 D_INFO("*** LOAD DRIVER ***\n");
35491 diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c
35492 index a0b7cfd..20b49f7 100644
35493 --- a/drivers/net/wireless/mac80211_hwsim.c
35494 +++ b/drivers/net/wireless/mac80211_hwsim.c
35495 @@ -1752,9 +1752,11 @@ static int __init init_mac80211_hwsim(void)
35496 return -EINVAL;
35497
35498 if (fake_hw_scan) {
35499 - mac80211_hwsim_ops.hw_scan = mac80211_hwsim_hw_scan;
35500 - mac80211_hwsim_ops.sw_scan_start = NULL;
35501 - mac80211_hwsim_ops.sw_scan_complete = NULL;
35502 + pax_open_kernel();
35503 + *(void **)&mac80211_hwsim_ops.hw_scan = mac80211_hwsim_hw_scan;
35504 + *(void **)&mac80211_hwsim_ops.sw_scan_start = NULL;
35505 + *(void **)&mac80211_hwsim_ops.sw_scan_complete = NULL;
35506 + pax_close_kernel();
35507 }
35508
35509 spin_lock_init(&hwsim_radio_lock);
35510 diff --git a/drivers/net/wireless/mwifiex/main.h b/drivers/net/wireless/mwifiex/main.h
35511 index bd3b0bf..f9db92a 100644
35512 --- a/drivers/net/wireless/mwifiex/main.h
35513 +++ b/drivers/net/wireless/mwifiex/main.h
35514 @@ -567,7 +567,7 @@ struct mwifiex_if_ops {
35515 int (*event_complete) (struct mwifiex_adapter *, struct sk_buff *);
35516 int (*data_complete) (struct mwifiex_adapter *, struct sk_buff *);
35517 int (*dnld_fw) (struct mwifiex_adapter *, struct mwifiex_fw_image *);
35518 -};
35519 +} __no_const;
35520
35521 struct mwifiex_adapter {
35522 u8 iface_type;
35523 diff --git a/drivers/net/wireless/rndis_wlan.c b/drivers/net/wireless/rndis_wlan.c
35524 index dfcd02a..a42a59d 100644
35525 --- a/drivers/net/wireless/rndis_wlan.c
35526 +++ b/drivers/net/wireless/rndis_wlan.c
35527 @@ -1235,7 +1235,7 @@ static int set_rts_threshold(struct usbnet *usbdev, u32 rts_threshold)
35528
35529 netdev_dbg(usbdev->net, "%s(): %i\n", __func__, rts_threshold);
35530
35531 - if (rts_threshold < 0 || rts_threshold > 2347)
35532 + if (rts_threshold > 2347)
35533 rts_threshold = 2347;
35534
35535 tmp = cpu_to_le32(rts_threshold);
35536 diff --git a/drivers/net/wireless/rt2x00/rt2x00.h b/drivers/net/wireless/rt2x00/rt2x00.h
35537 index 8f75402..eed109d 100644
35538 --- a/drivers/net/wireless/rt2x00/rt2x00.h
35539 +++ b/drivers/net/wireless/rt2x00/rt2x00.h
35540 @@ -396,7 +396,7 @@ struct rt2x00_intf {
35541 * for hardware which doesn't support hardware
35542 * sequence counting.
35543 */
35544 - atomic_t seqno;
35545 + atomic_unchecked_t seqno;
35546 };
35547
35548 static inline struct rt2x00_intf* vif_to_intf(struct ieee80211_vif *vif)
35549 diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.c b/drivers/net/wireless/rt2x00/rt2x00queue.c
35550 index 2fd8301..9767e8c 100644
35551 --- a/drivers/net/wireless/rt2x00/rt2x00queue.c
35552 +++ b/drivers/net/wireless/rt2x00/rt2x00queue.c
35553 @@ -240,9 +240,9 @@ static void rt2x00queue_create_tx_descriptor_seq(struct rt2x00_dev *rt2x00dev,
35554 * sequence counter given by mac80211.
35555 */
35556 if (test_bit(ENTRY_TXD_FIRST_FRAGMENT, &txdesc->flags))
35557 - seqno = atomic_add_return(0x10, &intf->seqno);
35558 + seqno = atomic_add_return_unchecked(0x10, &intf->seqno);
35559 else
35560 - seqno = atomic_read(&intf->seqno);
35561 + seqno = atomic_read_unchecked(&intf->seqno);
35562
35563 hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG);
35564 hdr->seq_ctrl |= cpu_to_le16(seqno);
35565 diff --git a/drivers/net/wireless/ti/wl1251/wl1251.h b/drivers/net/wireless/ti/wl1251/wl1251.h
35566 index 9d8f581..0f6589e 100644
35567 --- a/drivers/net/wireless/ti/wl1251/wl1251.h
35568 +++ b/drivers/net/wireless/ti/wl1251/wl1251.h
35569 @@ -266,7 +266,7 @@ struct wl1251_if_operations {
35570 void (*reset)(struct wl1251 *wl);
35571 void (*enable_irq)(struct wl1251 *wl);
35572 void (*disable_irq)(struct wl1251 *wl);
35573 -};
35574 +} __no_const;
35575
35576 struct wl1251 {
35577 struct ieee80211_hw *hw;
35578 diff --git a/drivers/net/wireless/ti/wlcore/wlcore.h b/drivers/net/wireless/ti/wlcore/wlcore.h
35579 index 0b3f0b5..62f68bd 100644
35580 --- a/drivers/net/wireless/ti/wlcore/wlcore.h
35581 +++ b/drivers/net/wireless/ti/wlcore/wlcore.h
35582 @@ -61,7 +61,7 @@ struct wlcore_ops {
35583 struct wl12xx_vif *wlvif);
35584 s8 (*get_pg_ver)(struct wl1271 *wl);
35585 void (*get_mac)(struct wl1271 *wl);
35586 -};
35587 +} __no_const;
35588
35589 enum wlcore_partitions {
35590 PART_DOWN,
35591 diff --git a/drivers/oprofile/buffer_sync.c b/drivers/oprofile/buffer_sync.c
35592 index f34b5b2..b5abb9f 100644
35593 --- a/drivers/oprofile/buffer_sync.c
35594 +++ b/drivers/oprofile/buffer_sync.c
35595 @@ -343,7 +343,7 @@ static void add_data(struct op_entry *entry, struct mm_struct *mm)
35596 if (cookie == NO_COOKIE)
35597 offset = pc;
35598 if (cookie == INVALID_COOKIE) {
35599 - atomic_inc(&oprofile_stats.sample_lost_no_mapping);
35600 + atomic_inc_unchecked(&oprofile_stats.sample_lost_no_mapping);
35601 offset = pc;
35602 }
35603 if (cookie != last_cookie) {
35604 @@ -387,14 +387,14 @@ add_sample(struct mm_struct *mm, struct op_sample *s, int in_kernel)
35605 /* add userspace sample */
35606
35607 if (!mm) {
35608 - atomic_inc(&oprofile_stats.sample_lost_no_mm);
35609 + atomic_inc_unchecked(&oprofile_stats.sample_lost_no_mm);
35610 return 0;
35611 }
35612
35613 cookie = lookup_dcookie(mm, s->eip, &offset);
35614
35615 if (cookie == INVALID_COOKIE) {
35616 - atomic_inc(&oprofile_stats.sample_lost_no_mapping);
35617 + atomic_inc_unchecked(&oprofile_stats.sample_lost_no_mapping);
35618 return 0;
35619 }
35620
35621 @@ -563,7 +563,7 @@ void sync_buffer(int cpu)
35622 /* ignore backtraces if failed to add a sample */
35623 if (state == sb_bt_start) {
35624 state = sb_bt_ignore;
35625 - atomic_inc(&oprofile_stats.bt_lost_no_mapping);
35626 + atomic_inc_unchecked(&oprofile_stats.bt_lost_no_mapping);
35627 }
35628 }
35629 release_mm(mm);
35630 diff --git a/drivers/oprofile/event_buffer.c b/drivers/oprofile/event_buffer.c
35631 index c0cc4e7..44d4e54 100644
35632 --- a/drivers/oprofile/event_buffer.c
35633 +++ b/drivers/oprofile/event_buffer.c
35634 @@ -53,7 +53,7 @@ void add_event_entry(unsigned long value)
35635 }
35636
35637 if (buffer_pos == buffer_size) {
35638 - atomic_inc(&oprofile_stats.event_lost_overflow);
35639 + atomic_inc_unchecked(&oprofile_stats.event_lost_overflow);
35640 return;
35641 }
35642
35643 diff --git a/drivers/oprofile/oprof.c b/drivers/oprofile/oprof.c
35644 index ed2c3ec..deda85a 100644
35645 --- a/drivers/oprofile/oprof.c
35646 +++ b/drivers/oprofile/oprof.c
35647 @@ -110,7 +110,7 @@ static void switch_worker(struct work_struct *work)
35648 if (oprofile_ops.switch_events())
35649 return;
35650
35651 - atomic_inc(&oprofile_stats.multiplex_counter);
35652 + atomic_inc_unchecked(&oprofile_stats.multiplex_counter);
35653 start_switch_worker();
35654 }
35655
35656 diff --git a/drivers/oprofile/oprofile_stats.c b/drivers/oprofile/oprofile_stats.c
35657 index 917d28e..d62d981 100644
35658 --- a/drivers/oprofile/oprofile_stats.c
35659 +++ b/drivers/oprofile/oprofile_stats.c
35660 @@ -30,11 +30,11 @@ void oprofile_reset_stats(void)
35661 cpu_buf->sample_invalid_eip = 0;
35662 }
35663
35664 - atomic_set(&oprofile_stats.sample_lost_no_mm, 0);
35665 - atomic_set(&oprofile_stats.sample_lost_no_mapping, 0);
35666 - atomic_set(&oprofile_stats.event_lost_overflow, 0);
35667 - atomic_set(&oprofile_stats.bt_lost_no_mapping, 0);
35668 - atomic_set(&oprofile_stats.multiplex_counter, 0);
35669 + atomic_set_unchecked(&oprofile_stats.sample_lost_no_mm, 0);
35670 + atomic_set_unchecked(&oprofile_stats.sample_lost_no_mapping, 0);
35671 + atomic_set_unchecked(&oprofile_stats.event_lost_overflow, 0);
35672 + atomic_set_unchecked(&oprofile_stats.bt_lost_no_mapping, 0);
35673 + atomic_set_unchecked(&oprofile_stats.multiplex_counter, 0);
35674 }
35675
35676
35677 diff --git a/drivers/oprofile/oprofile_stats.h b/drivers/oprofile/oprofile_stats.h
35678 index 38b6fc0..b5cbfce 100644
35679 --- a/drivers/oprofile/oprofile_stats.h
35680 +++ b/drivers/oprofile/oprofile_stats.h
35681 @@ -13,11 +13,11 @@
35682 #include <linux/atomic.h>
35683
35684 struct oprofile_stat_struct {
35685 - atomic_t sample_lost_no_mm;
35686 - atomic_t sample_lost_no_mapping;
35687 - atomic_t bt_lost_no_mapping;
35688 - atomic_t event_lost_overflow;
35689 - atomic_t multiplex_counter;
35690 + atomic_unchecked_t sample_lost_no_mm;
35691 + atomic_unchecked_t sample_lost_no_mapping;
35692 + atomic_unchecked_t bt_lost_no_mapping;
35693 + atomic_unchecked_t event_lost_overflow;
35694 + atomic_unchecked_t multiplex_counter;
35695 };
35696
35697 extern struct oprofile_stat_struct oprofile_stats;
35698 diff --git a/drivers/oprofile/oprofilefs.c b/drivers/oprofile/oprofilefs.c
35699 index 849357c..b83c1e0 100644
35700 --- a/drivers/oprofile/oprofilefs.c
35701 +++ b/drivers/oprofile/oprofilefs.c
35702 @@ -185,7 +185,7 @@ static const struct file_operations atomic_ro_fops = {
35703
35704
35705 int oprofilefs_create_ro_atomic(struct super_block *sb, struct dentry *root,
35706 - char const *name, atomic_t *val)
35707 + char const *name, atomic_unchecked_t *val)
35708 {
35709 return __oprofilefs_create_file(sb, root, name,
35710 &atomic_ro_fops, 0444, val);
35711 diff --git a/drivers/parport/procfs.c b/drivers/parport/procfs.c
35712 index 3f56bc0..707d642 100644
35713 --- a/drivers/parport/procfs.c
35714 +++ b/drivers/parport/procfs.c
35715 @@ -64,7 +64,7 @@ static int do_active_device(ctl_table *table, int write,
35716
35717 *ppos += len;
35718
35719 - return copy_to_user(result, buffer, len) ? -EFAULT : 0;
35720 + return (len > sizeof buffer || copy_to_user(result, buffer, len)) ? -EFAULT : 0;
35721 }
35722
35723 #ifdef CONFIG_PARPORT_1284
35724 @@ -106,7 +106,7 @@ static int do_autoprobe(ctl_table *table, int write,
35725
35726 *ppos += len;
35727
35728 - return copy_to_user (result, buffer, len) ? -EFAULT : 0;
35729 + return (len > sizeof buffer || copy_to_user (result, buffer, len)) ? -EFAULT : 0;
35730 }
35731 #endif /* IEEE1284.3 support. */
35732
35733 diff --git a/drivers/pci/hotplug/cpci_hotplug.h b/drivers/pci/hotplug/cpci_hotplug.h
35734 index 9fff878..ad0ad53 100644
35735 --- a/drivers/pci/hotplug/cpci_hotplug.h
35736 +++ b/drivers/pci/hotplug/cpci_hotplug.h
35737 @@ -59,7 +59,7 @@ struct cpci_hp_controller_ops {
35738 int (*hardware_test) (struct slot* slot, u32 value);
35739 u8 (*get_power) (struct slot* slot);
35740 int (*set_power) (struct slot* slot, int value);
35741 -};
35742 +} __no_const;
35743
35744 struct cpci_hp_controller {
35745 unsigned int irq;
35746 diff --git a/drivers/pci/hotplug/cpqphp_nvram.c b/drivers/pci/hotplug/cpqphp_nvram.c
35747 index 76ba8a1..20ca857 100644
35748 --- a/drivers/pci/hotplug/cpqphp_nvram.c
35749 +++ b/drivers/pci/hotplug/cpqphp_nvram.c
35750 @@ -428,9 +428,13 @@ static u32 store_HRT (void __iomem *rom_start)
35751
35752 void compaq_nvram_init (void __iomem *rom_start)
35753 {
35754 +
35755 +#ifndef CONFIG_PAX_KERNEXEC
35756 if (rom_start) {
35757 compaq_int15_entry_point = (rom_start + ROM_INT15_PHY_ADDR - ROM_PHY_ADDR);
35758 }
35759 +#endif
35760 +
35761 dbg("int15 entry = %p\n", compaq_int15_entry_point);
35762
35763 /* initialize our int15 lock */
35764 diff --git a/drivers/pci/pcie/aspm.c b/drivers/pci/pcie/aspm.c
35765 index b500840..d7159d3 100644
35766 --- a/drivers/pci/pcie/aspm.c
35767 +++ b/drivers/pci/pcie/aspm.c
35768 @@ -27,9 +27,9 @@
35769 #define MODULE_PARAM_PREFIX "pcie_aspm."
35770
35771 /* Note: those are not register definitions */
35772 -#define ASPM_STATE_L0S_UP (1) /* Upstream direction L0s state */
35773 -#define ASPM_STATE_L0S_DW (2) /* Downstream direction L0s state */
35774 -#define ASPM_STATE_L1 (4) /* L1 state */
35775 +#define ASPM_STATE_L0S_UP (1U) /* Upstream direction L0s state */
35776 +#define ASPM_STATE_L0S_DW (2U) /* Downstream direction L0s state */
35777 +#define ASPM_STATE_L1 (4U) /* L1 state */
35778 #define ASPM_STATE_L0S (ASPM_STATE_L0S_UP | ASPM_STATE_L0S_DW)
35779 #define ASPM_STATE_ALL (ASPM_STATE_L0S | ASPM_STATE_L1)
35780
35781 diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
35782 index 658ac97..05e1b90 100644
35783 --- a/drivers/pci/probe.c
35784 +++ b/drivers/pci/probe.c
35785 @@ -137,7 +137,7 @@ int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type,
35786 u16 orig_cmd;
35787 struct pci_bus_region region;
35788
35789 - mask = type ? PCI_ROM_ADDRESS_MASK : ~0;
35790 + mask = type ? (u32)PCI_ROM_ADDRESS_MASK : ~0;
35791
35792 if (!dev->mmio_always_on) {
35793 pci_read_config_word(dev, PCI_COMMAND, &orig_cmd);
35794 diff --git a/drivers/pci/proc.c b/drivers/pci/proc.c
35795 index 27911b5..5b6db88 100644
35796 --- a/drivers/pci/proc.c
35797 +++ b/drivers/pci/proc.c
35798 @@ -476,7 +476,16 @@ static const struct file_operations proc_bus_pci_dev_operations = {
35799 static int __init pci_proc_init(void)
35800 {
35801 struct pci_dev *dev = NULL;
35802 +
35803 +#ifdef CONFIG_GRKERNSEC_PROC_ADD
35804 +#ifdef CONFIG_GRKERNSEC_PROC_USER
35805 + proc_bus_pci_dir = proc_mkdir_mode("bus/pci", S_IRUSR | S_IXUSR, NULL);
35806 +#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
35807 + proc_bus_pci_dir = proc_mkdir_mode("bus/pci", S_IRUSR | S_IXUSR | S_IRGRP | S_IXGRP, NULL);
35808 +#endif
35809 +#else
35810 proc_bus_pci_dir = proc_mkdir("bus/pci", NULL);
35811 +#endif
35812 proc_create("devices", 0, proc_bus_pci_dir,
35813 &proc_bus_pci_dev_operations);
35814 proc_initialized = 1;
35815 diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
35816 index 8b5610d..a4c22bb 100644
35817 --- a/drivers/platform/x86/thinkpad_acpi.c
35818 +++ b/drivers/platform/x86/thinkpad_acpi.c
35819 @@ -2094,7 +2094,7 @@ static int hotkey_mask_get(void)
35820 return 0;
35821 }
35822
35823 -void static hotkey_mask_warn_incomplete_mask(void)
35824 +static void hotkey_mask_warn_incomplete_mask(void)
35825 {
35826 /* log only what the user can fix... */
35827 const u32 wantedmask = hotkey_driver_mask &
35828 @@ -2325,11 +2325,6 @@ static void hotkey_read_nvram(struct tp_nvram_state *n, const u32 m)
35829 }
35830 }
35831
35832 -static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn,
35833 - struct tp_nvram_state *newn,
35834 - const u32 event_mask)
35835 -{
35836 -
35837 #define TPACPI_COMPARE_KEY(__scancode, __member) \
35838 do { \
35839 if ((event_mask & (1 << __scancode)) && \
35840 @@ -2343,36 +2338,42 @@ static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn,
35841 tpacpi_hotkey_send_key(__scancode); \
35842 } while (0)
35843
35844 - void issue_volchange(const unsigned int oldvol,
35845 - const unsigned int newvol)
35846 - {
35847 - unsigned int i = oldvol;
35848 +static void issue_volchange(const unsigned int oldvol,
35849 + const unsigned int newvol,
35850 + const u32 event_mask)
35851 +{
35852 + unsigned int i = oldvol;
35853
35854 - while (i > newvol) {
35855 - TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN);
35856 - i--;
35857 - }
35858 - while (i < newvol) {
35859 - TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP);
35860 - i++;
35861 - }
35862 + while (i > newvol) {
35863 + TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN);
35864 + i--;
35865 }
35866 + while (i < newvol) {
35867 + TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP);
35868 + i++;
35869 + }
35870 +}
35871
35872 - void issue_brightnesschange(const unsigned int oldbrt,
35873 - const unsigned int newbrt)
35874 - {
35875 - unsigned int i = oldbrt;
35876 +static void issue_brightnesschange(const unsigned int oldbrt,
35877 + const unsigned int newbrt,
35878 + const u32 event_mask)
35879 +{
35880 + unsigned int i = oldbrt;
35881
35882 - while (i > newbrt) {
35883 - TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND);
35884 - i--;
35885 - }
35886 - while (i < newbrt) {
35887 - TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME);
35888 - i++;
35889 - }
35890 + while (i > newbrt) {
35891 + TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND);
35892 + i--;
35893 + }
35894 + while (i < newbrt) {
35895 + TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME);
35896 + i++;
35897 }
35898 +}
35899
35900 +static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn,
35901 + struct tp_nvram_state *newn,
35902 + const u32 event_mask)
35903 +{
35904 TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_THINKPAD, thinkpad_toggle);
35905 TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNSPACE, zoom_toggle);
35906 TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF7, display_toggle);
35907 @@ -2406,7 +2407,7 @@ static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn,
35908 oldn->volume_level != newn->volume_level) {
35909 /* recently muted, or repeated mute keypress, or
35910 * multiple presses ending in mute */
35911 - issue_volchange(oldn->volume_level, newn->volume_level);
35912 + issue_volchange(oldn->volume_level, newn->volume_level, event_mask);
35913 TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_MUTE);
35914 }
35915 } else {
35916 @@ -2416,7 +2417,7 @@ static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn,
35917 TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP);
35918 }
35919 if (oldn->volume_level != newn->volume_level) {
35920 - issue_volchange(oldn->volume_level, newn->volume_level);
35921 + issue_volchange(oldn->volume_level, newn->volume_level, event_mask);
35922 } else if (oldn->volume_toggle != newn->volume_toggle) {
35923 /* repeated vol up/down keypress at end of scale ? */
35924 if (newn->volume_level == 0)
35925 @@ -2429,7 +2430,8 @@ static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn,
35926 /* handle brightness */
35927 if (oldn->brightness_level != newn->brightness_level) {
35928 issue_brightnesschange(oldn->brightness_level,
35929 - newn->brightness_level);
35930 + newn->brightness_level,
35931 + event_mask);
35932 } else if (oldn->brightness_toggle != newn->brightness_toggle) {
35933 /* repeated key presses that didn't change state */
35934 if (newn->brightness_level == 0)
35935 @@ -2438,10 +2440,10 @@ static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn,
35936 && !tp_features.bright_unkfw)
35937 TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME);
35938 }
35939 +}
35940
35941 #undef TPACPI_COMPARE_KEY
35942 #undef TPACPI_MAY_SEND_KEY
35943 -}
35944
35945 /*
35946 * Polling driver
35947 diff --git a/drivers/pnp/pnpbios/bioscalls.c b/drivers/pnp/pnpbios/bioscalls.c
35948 index 769d265..a3a05ca 100644
35949 --- a/drivers/pnp/pnpbios/bioscalls.c
35950 +++ b/drivers/pnp/pnpbios/bioscalls.c
35951 @@ -58,7 +58,7 @@ do { \
35952 set_desc_limit(&gdt[(selname) >> 3], (size) - 1); \
35953 } while(0)
35954
35955 -static struct desc_struct bad_bios_desc = GDT_ENTRY_INIT(0x4092,
35956 +static const struct desc_struct bad_bios_desc = GDT_ENTRY_INIT(0x4093,
35957 (unsigned long)__va(0x400UL), PAGE_SIZE - 0x400 - 1);
35958
35959 /*
35960 @@ -95,7 +95,10 @@ static inline u16 call_pnp_bios(u16 func, u16 arg1, u16 arg2, u16 arg3,
35961
35962 cpu = get_cpu();
35963 save_desc_40 = get_cpu_gdt_table(cpu)[0x40 / 8];
35964 +
35965 + pax_open_kernel();
35966 get_cpu_gdt_table(cpu)[0x40 / 8] = bad_bios_desc;
35967 + pax_close_kernel();
35968
35969 /* On some boxes IRQ's during PnP BIOS calls are deadly. */
35970 spin_lock_irqsave(&pnp_bios_lock, flags);
35971 @@ -133,7 +136,10 @@ static inline u16 call_pnp_bios(u16 func, u16 arg1, u16 arg2, u16 arg3,
35972 :"memory");
35973 spin_unlock_irqrestore(&pnp_bios_lock, flags);
35974
35975 + pax_open_kernel();
35976 get_cpu_gdt_table(cpu)[0x40 / 8] = save_desc_40;
35977 + pax_close_kernel();
35978 +
35979 put_cpu();
35980
35981 /* If we get here and this is set then the PnP BIOS faulted on us. */
35982 @@ -467,7 +473,7 @@ int pnp_bios_read_escd(char *data, u32 nvram_base)
35983 return status;
35984 }
35985
35986 -void pnpbios_calls_init(union pnp_bios_install_struct *header)
35987 +void __init pnpbios_calls_init(union pnp_bios_install_struct *header)
35988 {
35989 int i;
35990
35991 @@ -475,6 +481,8 @@ void pnpbios_calls_init(union pnp_bios_install_struct *header)
35992 pnp_bios_callpoint.offset = header->fields.pm16offset;
35993 pnp_bios_callpoint.segment = PNP_CS16;
35994
35995 + pax_open_kernel();
35996 +
35997 for_each_possible_cpu(i) {
35998 struct desc_struct *gdt = get_cpu_gdt_table(i);
35999 if (!gdt)
36000 @@ -486,4 +494,6 @@ void pnpbios_calls_init(union pnp_bios_install_struct *header)
36001 set_desc_base(&gdt[GDT_ENTRY_PNPBIOS_DS],
36002 (unsigned long)__va(header->fields.pm16dseg));
36003 }
36004 +
36005 + pax_close_kernel();
36006 }
36007 diff --git a/drivers/pnp/resource.c b/drivers/pnp/resource.c
36008 index b0ecacb..7c9da2e 100644
36009 --- a/drivers/pnp/resource.c
36010 +++ b/drivers/pnp/resource.c
36011 @@ -360,7 +360,7 @@ int pnp_check_irq(struct pnp_dev *dev, struct resource *res)
36012 return 1;
36013
36014 /* check if the resource is valid */
36015 - if (*irq < 0 || *irq > 15)
36016 + if (*irq > 15)
36017 return 0;
36018
36019 /* check if the resource is reserved */
36020 @@ -424,7 +424,7 @@ int pnp_check_dma(struct pnp_dev *dev, struct resource *res)
36021 return 1;
36022
36023 /* check if the resource is valid */
36024 - if (*dma < 0 || *dma == 4 || *dma > 7)
36025 + if (*dma == 4 || *dma > 7)
36026 return 0;
36027
36028 /* check if the resource is reserved */
36029 diff --git a/drivers/power/bq27x00_battery.c b/drivers/power/bq27x00_battery.c
36030 index f5d6d37..739f6a9 100644
36031 --- a/drivers/power/bq27x00_battery.c
36032 +++ b/drivers/power/bq27x00_battery.c
36033 @@ -72,7 +72,7 @@
36034 struct bq27x00_device_info;
36035 struct bq27x00_access_methods {
36036 int (*read)(struct bq27x00_device_info *di, u8 reg, bool single);
36037 -};
36038 +} __no_const;
36039
36040 enum bq27x00_chip { BQ27000, BQ27500 };
36041
36042 diff --git a/drivers/regulator/max8660.c b/drivers/regulator/max8660.c
36043 index 8d53174..04c65de 100644
36044 --- a/drivers/regulator/max8660.c
36045 +++ b/drivers/regulator/max8660.c
36046 @@ -333,8 +333,10 @@ static int __devinit max8660_probe(struct i2c_client *client,
36047 max8660->shadow_regs[MAX8660_OVER1] = 5;
36048 } else {
36049 /* Otherwise devices can be toggled via software */
36050 - max8660_dcdc_ops.enable = max8660_dcdc_enable;
36051 - max8660_dcdc_ops.disable = max8660_dcdc_disable;
36052 + pax_open_kernel();
36053 + *(void **)&max8660_dcdc_ops.enable = max8660_dcdc_enable;
36054 + *(void **)&max8660_dcdc_ops.disable = max8660_dcdc_disable;
36055 + pax_close_kernel();
36056 }
36057
36058 /*
36059 diff --git a/drivers/regulator/mc13892-regulator.c b/drivers/regulator/mc13892-regulator.c
36060 index 970a233..ee1f241 100644
36061 --- a/drivers/regulator/mc13892-regulator.c
36062 +++ b/drivers/regulator/mc13892-regulator.c
36063 @@ -566,10 +566,12 @@ static int __devinit mc13892_regulator_probe(struct platform_device *pdev)
36064 }
36065 mc13xxx_unlock(mc13892);
36066
36067 - mc13892_regulators[MC13892_VCAM].desc.ops->set_mode
36068 + pax_open_kernel();
36069 + *(void **)&mc13892_regulators[MC13892_VCAM].desc.ops->set_mode
36070 = mc13892_vcam_set_mode;
36071 - mc13892_regulators[MC13892_VCAM].desc.ops->get_mode
36072 + *(void **)&mc13892_regulators[MC13892_VCAM].desc.ops->get_mode
36073 = mc13892_vcam_get_mode;
36074 + pax_close_kernel();
36075
36076 mc13xxx_data = mc13xxx_parse_regulators_dt(pdev, mc13892_regulators,
36077 ARRAY_SIZE(mc13892_regulators));
36078 diff --git a/drivers/rtc/rtc-dev.c b/drivers/rtc/rtc-dev.c
36079 index cace6d3..f623fda 100644
36080 --- a/drivers/rtc/rtc-dev.c
36081 +++ b/drivers/rtc/rtc-dev.c
36082 @@ -14,6 +14,7 @@
36083 #include <linux/module.h>
36084 #include <linux/rtc.h>
36085 #include <linux/sched.h>
36086 +#include <linux/grsecurity.h>
36087 #include "rtc-core.h"
36088
36089 static dev_t rtc_devt;
36090 @@ -345,6 +346,8 @@ static long rtc_dev_ioctl(struct file *file,
36091 if (copy_from_user(&tm, uarg, sizeof(tm)))
36092 return -EFAULT;
36093
36094 + gr_log_timechange();
36095 +
36096 return rtc_set_time(rtc, &tm);
36097
36098 case RTC_PIE_ON:
36099 diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h
36100 index 3fcf627..f334910 100644
36101 --- a/drivers/scsi/aacraid/aacraid.h
36102 +++ b/drivers/scsi/aacraid/aacraid.h
36103 @@ -492,7 +492,7 @@ struct adapter_ops
36104 int (*adapter_scsi)(struct fib * fib, struct scsi_cmnd * cmd);
36105 /* Administrative operations */
36106 int (*adapter_comm)(struct aac_dev * dev, int comm);
36107 -};
36108 +} __no_const;
36109
36110 /*
36111 * Define which interrupt handler needs to be installed
36112 diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c
36113 index 0d279c44..3d25a97 100644
36114 --- a/drivers/scsi/aacraid/linit.c
36115 +++ b/drivers/scsi/aacraid/linit.c
36116 @@ -93,7 +93,7 @@ static DECLARE_PCI_DEVICE_TABLE(aac_pci_tbl) = {
36117 #elif defined(__devinitconst)
36118 static const struct pci_device_id aac_pci_tbl[] __devinitconst = {
36119 #else
36120 -static const struct pci_device_id aac_pci_tbl[] __devinitdata = {
36121 +static const struct pci_device_id aac_pci_tbl[] __devinitconst = {
36122 #endif
36123 { 0x1028, 0x0001, 0x1028, 0x0001, 0, 0, 0 }, /* PERC 2/Si (Iguana/PERC2Si) */
36124 { 0x1028, 0x0002, 0x1028, 0x0002, 0, 0, 1 }, /* PERC 3/Di (Opal/PERC3Di) */
36125 diff --git a/drivers/scsi/aic94xx/aic94xx_init.c b/drivers/scsi/aic94xx/aic94xx_init.c
36126 index ff80552..1c4120c 100644
36127 --- a/drivers/scsi/aic94xx/aic94xx_init.c
36128 +++ b/drivers/scsi/aic94xx/aic94xx_init.c
36129 @@ -1012,7 +1012,7 @@ static struct sas_domain_function_template aic94xx_transport_functions = {
36130 .lldd_ata_set_dmamode = asd_set_dmamode,
36131 };
36132
36133 -static const struct pci_device_id aic94xx_pci_table[] __devinitdata = {
36134 +static const struct pci_device_id aic94xx_pci_table[] __devinitconst = {
36135 {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x410),0, 0, 1},
36136 {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x412),0, 0, 1},
36137 {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x416),0, 0, 1},
36138 diff --git a/drivers/scsi/bfa/bfa.h b/drivers/scsi/bfa/bfa.h
36139 index 4ad7e36..d004679 100644
36140 --- a/drivers/scsi/bfa/bfa.h
36141 +++ b/drivers/scsi/bfa/bfa.h
36142 @@ -196,7 +196,7 @@ struct bfa_hwif_s {
36143 u32 *end);
36144 int cpe_vec_q0;
36145 int rme_vec_q0;
36146 -};
36147 +} __no_const;
36148 typedef void (*bfa_cb_iocfc_t) (void *cbarg, enum bfa_status status);
36149
36150 struct bfa_faa_cbfn_s {
36151 diff --git a/drivers/scsi/bfa/bfa_fcpim.c b/drivers/scsi/bfa/bfa_fcpim.c
36152 index f0f80e2..8ec946b 100644
36153 --- a/drivers/scsi/bfa/bfa_fcpim.c
36154 +++ b/drivers/scsi/bfa/bfa_fcpim.c
36155 @@ -3715,7 +3715,7 @@ bfa_fcp_attach(struct bfa_s *bfa, void *bfad, struct bfa_iocfc_cfg_s *cfg,
36156
36157 bfa_iotag_attach(fcp);
36158
36159 - fcp->itn_arr = (struct bfa_itn_s *) bfa_mem_kva_curp(fcp);
36160 + fcp->itn_arr = (bfa_itn_s_no_const *) bfa_mem_kva_curp(fcp);
36161 bfa_mem_kva_curp(fcp) = (u8 *)fcp->itn_arr +
36162 (fcp->num_itns * sizeof(struct bfa_itn_s));
36163 memset(fcp->itn_arr, 0,
36164 @@ -3773,7 +3773,7 @@ bfa_itn_create(struct bfa_s *bfa, struct bfa_rport_s *rport,
36165 void (*isr)(struct bfa_s *bfa, struct bfi_msg_s *m))
36166 {
36167 struct bfa_fcp_mod_s *fcp = BFA_FCP_MOD(bfa);
36168 - struct bfa_itn_s *itn;
36169 + bfa_itn_s_no_const *itn;
36170
36171 itn = BFA_ITN_FROM_TAG(fcp, rport->rport_tag);
36172 itn->isr = isr;
36173 diff --git a/drivers/scsi/bfa/bfa_fcpim.h b/drivers/scsi/bfa/bfa_fcpim.h
36174 index 36f26da..38a34a8 100644
36175 --- a/drivers/scsi/bfa/bfa_fcpim.h
36176 +++ b/drivers/scsi/bfa/bfa_fcpim.h
36177 @@ -37,6 +37,7 @@ struct bfa_iotag_s {
36178 struct bfa_itn_s {
36179 bfa_isr_func_t isr;
36180 };
36181 +typedef struct bfa_itn_s __no_const bfa_itn_s_no_const;
36182
36183 void bfa_itn_create(struct bfa_s *bfa, struct bfa_rport_s *rport,
36184 void (*isr)(struct bfa_s *bfa, struct bfi_msg_s *m));
36185 @@ -147,7 +148,7 @@ struct bfa_fcp_mod_s {
36186 struct list_head iotag_tio_free_q; /* free IO resources */
36187 struct list_head iotag_unused_q; /* unused IO resources*/
36188 struct bfa_iotag_s *iotag_arr;
36189 - struct bfa_itn_s *itn_arr;
36190 + bfa_itn_s_no_const *itn_arr;
36191 int num_ioim_reqs;
36192 int num_fwtio_reqs;
36193 int num_itns;
36194 diff --git a/drivers/scsi/bfa/bfa_ioc.h b/drivers/scsi/bfa/bfa_ioc.h
36195 index 1a99d4b..e85d64b 100644
36196 --- a/drivers/scsi/bfa/bfa_ioc.h
36197 +++ b/drivers/scsi/bfa/bfa_ioc.h
36198 @@ -258,7 +258,7 @@ struct bfa_ioc_cbfn_s {
36199 bfa_ioc_disable_cbfn_t disable_cbfn;
36200 bfa_ioc_hbfail_cbfn_t hbfail_cbfn;
36201 bfa_ioc_reset_cbfn_t reset_cbfn;
36202 -};
36203 +} __no_const;
36204
36205 /*
36206 * IOC event notification mechanism.
36207 @@ -346,7 +346,7 @@ struct bfa_ioc_hwif_s {
36208 void (*ioc_sync_ack) (struct bfa_ioc_s *ioc);
36209 bfa_boolean_t (*ioc_sync_complete) (struct bfa_ioc_s *ioc);
36210 bfa_boolean_t (*ioc_lpu_read_stat) (struct bfa_ioc_s *ioc);
36211 -};
36212 +} __no_const;
36213
36214 /*
36215 * Queue element to wait for room in request queue. FIFO order is
36216 diff --git a/drivers/scsi/hosts.c b/drivers/scsi/hosts.c
36217 index b48c24f..dac0fbc 100644
36218 --- a/drivers/scsi/hosts.c
36219 +++ b/drivers/scsi/hosts.c
36220 @@ -42,7 +42,7 @@
36221 #include "scsi_logging.h"
36222
36223
36224 -static atomic_t scsi_host_next_hn; /* host_no for next new host */
36225 +static atomic_unchecked_t scsi_host_next_hn; /* host_no for next new host */
36226
36227
36228 static void scsi_host_cls_release(struct device *dev)
36229 @@ -361,7 +361,7 @@ struct Scsi_Host *scsi_host_alloc(struct scsi_host_template *sht, int privsize)
36230 * subtract one because we increment first then return, but we need to
36231 * know what the next host number was before increment
36232 */
36233 - shost->host_no = atomic_inc_return(&scsi_host_next_hn) - 1;
36234 + shost->host_no = atomic_inc_return_unchecked(&scsi_host_next_hn) - 1;
36235 shost->dma_channel = 0xff;
36236
36237 /* These three are default values which can be overridden */
36238 diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
36239 index 796482b..d08435c 100644
36240 --- a/drivers/scsi/hpsa.c
36241 +++ b/drivers/scsi/hpsa.c
36242 @@ -536,7 +536,7 @@ static inline u32 next_command(struct ctlr_info *h, u8 q)
36243 unsigned long flags;
36244
36245 if (unlikely(!(h->transMethod & CFGTBL_Trans_Performant)))
36246 - return h->access.command_completed(h, q);
36247 + return h->access->command_completed(h, q);
36248
36249 if ((rq->head[rq->current_entry] & 1) == rq->wraparound) {
36250 a = rq->head[rq->current_entry];
36251 @@ -3354,7 +3354,7 @@ static void start_io(struct ctlr_info *h)
36252 while (!list_empty(&h->reqQ)) {
36253 c = list_entry(h->reqQ.next, struct CommandList, list);
36254 /* can't do anything if fifo is full */
36255 - if ((h->access.fifo_full(h))) {
36256 + if ((h->access->fifo_full(h))) {
36257 dev_warn(&h->pdev->dev, "fifo full\n");
36258 break;
36259 }
36260 @@ -3376,7 +3376,7 @@ static void start_io(struct ctlr_info *h)
36261
36262 /* Tell the controller execute command */
36263 spin_unlock_irqrestore(&h->lock, flags);
36264 - h->access.submit_command(h, c);
36265 + h->access->submit_command(h, c);
36266 spin_lock_irqsave(&h->lock, flags);
36267 }
36268 spin_unlock_irqrestore(&h->lock, flags);
36269 @@ -3384,17 +3384,17 @@ static void start_io(struct ctlr_info *h)
36270
36271 static inline unsigned long get_next_completion(struct ctlr_info *h, u8 q)
36272 {
36273 - return h->access.command_completed(h, q);
36274 + return h->access->command_completed(h, q);
36275 }
36276
36277 static inline bool interrupt_pending(struct ctlr_info *h)
36278 {
36279 - return h->access.intr_pending(h);
36280 + return h->access->intr_pending(h);
36281 }
36282
36283 static inline long interrupt_not_for_us(struct ctlr_info *h)
36284 {
36285 - return (h->access.intr_pending(h) == 0) ||
36286 + return (h->access->intr_pending(h) == 0) ||
36287 (h->interrupts_enabled == 0);
36288 }
36289
36290 @@ -4298,7 +4298,7 @@ static int __devinit hpsa_pci_init(struct ctlr_info *h)
36291 if (prod_index < 0)
36292 return -ENODEV;
36293 h->product_name = products[prod_index].product_name;
36294 - h->access = *(products[prod_index].access);
36295 + h->access = products[prod_index].access;
36296
36297 pci_disable_link_state(h->pdev, PCIE_LINK_STATE_L0S |
36298 PCIE_LINK_STATE_L1 | PCIE_LINK_STATE_CLKPM);
36299 @@ -4580,7 +4580,7 @@ static void controller_lockup_detected(struct ctlr_info *h)
36300
36301 assert_spin_locked(&lockup_detector_lock);
36302 remove_ctlr_from_lockup_detector_list(h);
36303 - h->access.set_intr_mask(h, HPSA_INTR_OFF);
36304 + h->access->set_intr_mask(h, HPSA_INTR_OFF);
36305 spin_lock_irqsave(&h->lock, flags);
36306 h->lockup_detected = readl(h->vaddr + SA5_SCRATCHPAD_OFFSET);
36307 spin_unlock_irqrestore(&h->lock, flags);
36308 @@ -4758,7 +4758,7 @@ reinit_after_soft_reset:
36309 }
36310
36311 /* make sure the board interrupts are off */
36312 - h->access.set_intr_mask(h, HPSA_INTR_OFF);
36313 + h->access->set_intr_mask(h, HPSA_INTR_OFF);
36314
36315 if (hpsa_request_irq(h, do_hpsa_intr_msi, do_hpsa_intr_intx))
36316 goto clean2;
36317 @@ -4792,7 +4792,7 @@ reinit_after_soft_reset:
36318 * fake ones to scoop up any residual completions.
36319 */
36320 spin_lock_irqsave(&h->lock, flags);
36321 - h->access.set_intr_mask(h, HPSA_INTR_OFF);
36322 + h->access->set_intr_mask(h, HPSA_INTR_OFF);
36323 spin_unlock_irqrestore(&h->lock, flags);
36324 free_irqs(h);
36325 rc = hpsa_request_irq(h, hpsa_msix_discard_completions,
36326 @@ -4811,9 +4811,9 @@ reinit_after_soft_reset:
36327 dev_info(&h->pdev->dev, "Board READY.\n");
36328 dev_info(&h->pdev->dev,
36329 "Waiting for stale completions to drain.\n");
36330 - h->access.set_intr_mask(h, HPSA_INTR_ON);
36331 + h->access->set_intr_mask(h, HPSA_INTR_ON);
36332 msleep(10000);
36333 - h->access.set_intr_mask(h, HPSA_INTR_OFF);
36334 + h->access->set_intr_mask(h, HPSA_INTR_OFF);
36335
36336 rc = controller_reset_failed(h->cfgtable);
36337 if (rc)
36338 @@ -4834,7 +4834,7 @@ reinit_after_soft_reset:
36339 }
36340
36341 /* Turn the interrupts on so we can service requests */
36342 - h->access.set_intr_mask(h, HPSA_INTR_ON);
36343 + h->access->set_intr_mask(h, HPSA_INTR_ON);
36344
36345 hpsa_hba_inquiry(h);
36346 hpsa_register_scsi(h); /* hook ourselves into SCSI subsystem */
36347 @@ -4886,7 +4886,7 @@ static void hpsa_shutdown(struct pci_dev *pdev)
36348 * To write all data in the battery backed cache to disks
36349 */
36350 hpsa_flush_cache(h);
36351 - h->access.set_intr_mask(h, HPSA_INTR_OFF);
36352 + h->access->set_intr_mask(h, HPSA_INTR_OFF);
36353 hpsa_free_irqs_and_disable_msix(h);
36354 }
36355
36356 @@ -5055,7 +5055,7 @@ static __devinit void hpsa_enter_performant_mode(struct ctlr_info *h,
36357 return;
36358 }
36359 /* Change the access methods to the performant access methods */
36360 - h->access = SA5_performant_access;
36361 + h->access = &SA5_performant_access;
36362 h->transMethod = CFGTBL_Trans_Performant;
36363 }
36364
36365 diff --git a/drivers/scsi/hpsa.h b/drivers/scsi/hpsa.h
36366 index 9816479..c5d4e97 100644
36367 --- a/drivers/scsi/hpsa.h
36368 +++ b/drivers/scsi/hpsa.h
36369 @@ -79,7 +79,7 @@ struct ctlr_info {
36370 unsigned int msix_vector;
36371 unsigned int msi_vector;
36372 int intr_mode; /* either PERF_MODE_INT or SIMPLE_MODE_INT */
36373 - struct access_method access;
36374 + struct access_method *access;
36375
36376 /* queue and queue Info */
36377 struct list_head reqQ;
36378 diff --git a/drivers/scsi/ips.h b/drivers/scsi/ips.h
36379 index f2df059..a3a9930 100644
36380 --- a/drivers/scsi/ips.h
36381 +++ b/drivers/scsi/ips.h
36382 @@ -1027,7 +1027,7 @@ typedef struct {
36383 int (*intr)(struct ips_ha *);
36384 void (*enableint)(struct ips_ha *);
36385 uint32_t (*statupd)(struct ips_ha *);
36386 -} ips_hw_func_t;
36387 +} __no_const ips_hw_func_t;
36388
36389 typedef struct ips_ha {
36390 uint8_t ha_id[IPS_MAX_CHANNELS+1];
36391 diff --git a/drivers/scsi/libfc/fc_exch.c b/drivers/scsi/libfc/fc_exch.c
36392 index aceffad..c35c08d 100644
36393 --- a/drivers/scsi/libfc/fc_exch.c
36394 +++ b/drivers/scsi/libfc/fc_exch.c
36395 @@ -105,12 +105,12 @@ struct fc_exch_mgr {
36396 * all together if not used XXX
36397 */
36398 struct {
36399 - atomic_t no_free_exch;
36400 - atomic_t no_free_exch_xid;
36401 - atomic_t xid_not_found;
36402 - atomic_t xid_busy;
36403 - atomic_t seq_not_found;
36404 - atomic_t non_bls_resp;
36405 + atomic_unchecked_t no_free_exch;
36406 + atomic_unchecked_t no_free_exch_xid;
36407 + atomic_unchecked_t xid_not_found;
36408 + atomic_unchecked_t xid_busy;
36409 + atomic_unchecked_t seq_not_found;
36410 + atomic_unchecked_t non_bls_resp;
36411 } stats;
36412 };
36413
36414 @@ -719,7 +719,7 @@ static struct fc_exch *fc_exch_em_alloc(struct fc_lport *lport,
36415 /* allocate memory for exchange */
36416 ep = mempool_alloc(mp->ep_pool, GFP_ATOMIC);
36417 if (!ep) {
36418 - atomic_inc(&mp->stats.no_free_exch);
36419 + atomic_inc_unchecked(&mp->stats.no_free_exch);
36420 goto out;
36421 }
36422 memset(ep, 0, sizeof(*ep));
36423 @@ -780,7 +780,7 @@ out:
36424 return ep;
36425 err:
36426 spin_unlock_bh(&pool->lock);
36427 - atomic_inc(&mp->stats.no_free_exch_xid);
36428 + atomic_inc_unchecked(&mp->stats.no_free_exch_xid);
36429 mempool_free(ep, mp->ep_pool);
36430 return NULL;
36431 }
36432 @@ -923,7 +923,7 @@ static enum fc_pf_rjt_reason fc_seq_lookup_recip(struct fc_lport *lport,
36433 xid = ntohs(fh->fh_ox_id); /* we originated exch */
36434 ep = fc_exch_find(mp, xid);
36435 if (!ep) {
36436 - atomic_inc(&mp->stats.xid_not_found);
36437 + atomic_inc_unchecked(&mp->stats.xid_not_found);
36438 reject = FC_RJT_OX_ID;
36439 goto out;
36440 }
36441 @@ -953,7 +953,7 @@ static enum fc_pf_rjt_reason fc_seq_lookup_recip(struct fc_lport *lport,
36442 ep = fc_exch_find(mp, xid);
36443 if ((f_ctl & FC_FC_FIRST_SEQ) && fc_sof_is_init(fr_sof(fp))) {
36444 if (ep) {
36445 - atomic_inc(&mp->stats.xid_busy);
36446 + atomic_inc_unchecked(&mp->stats.xid_busy);
36447 reject = FC_RJT_RX_ID;
36448 goto rel;
36449 }
36450 @@ -964,7 +964,7 @@ static enum fc_pf_rjt_reason fc_seq_lookup_recip(struct fc_lport *lport,
36451 }
36452 xid = ep->xid; /* get our XID */
36453 } else if (!ep) {
36454 - atomic_inc(&mp->stats.xid_not_found);
36455 + atomic_inc_unchecked(&mp->stats.xid_not_found);
36456 reject = FC_RJT_RX_ID; /* XID not found */
36457 goto out;
36458 }
36459 @@ -981,7 +981,7 @@ static enum fc_pf_rjt_reason fc_seq_lookup_recip(struct fc_lport *lport,
36460 } else {
36461 sp = &ep->seq;
36462 if (sp->id != fh->fh_seq_id) {
36463 - atomic_inc(&mp->stats.seq_not_found);
36464 + atomic_inc_unchecked(&mp->stats.seq_not_found);
36465 if (f_ctl & FC_FC_END_SEQ) {
36466 /*
36467 * Update sequence_id based on incoming last
36468 @@ -1431,22 +1431,22 @@ static void fc_exch_recv_seq_resp(struct fc_exch_mgr *mp, struct fc_frame *fp)
36469
36470 ep = fc_exch_find(mp, ntohs(fh->fh_ox_id));
36471 if (!ep) {
36472 - atomic_inc(&mp->stats.xid_not_found);
36473 + atomic_inc_unchecked(&mp->stats.xid_not_found);
36474 goto out;
36475 }
36476 if (ep->esb_stat & ESB_ST_COMPLETE) {
36477 - atomic_inc(&mp->stats.xid_not_found);
36478 + atomic_inc_unchecked(&mp->stats.xid_not_found);
36479 goto rel;
36480 }
36481 if (ep->rxid == FC_XID_UNKNOWN)
36482 ep->rxid = ntohs(fh->fh_rx_id);
36483 if (ep->sid != 0 && ep->sid != ntoh24(fh->fh_d_id)) {
36484 - atomic_inc(&mp->stats.xid_not_found);
36485 + atomic_inc_unchecked(&mp->stats.xid_not_found);
36486 goto rel;
36487 }
36488 if (ep->did != ntoh24(fh->fh_s_id) &&
36489 ep->did != FC_FID_FLOGI) {
36490 - atomic_inc(&mp->stats.xid_not_found);
36491 + atomic_inc_unchecked(&mp->stats.xid_not_found);
36492 goto rel;
36493 }
36494 sof = fr_sof(fp);
36495 @@ -1455,7 +1455,7 @@ static void fc_exch_recv_seq_resp(struct fc_exch_mgr *mp, struct fc_frame *fp)
36496 sp->ssb_stat |= SSB_ST_RESP;
36497 sp->id = fh->fh_seq_id;
36498 } else if (sp->id != fh->fh_seq_id) {
36499 - atomic_inc(&mp->stats.seq_not_found);
36500 + atomic_inc_unchecked(&mp->stats.seq_not_found);
36501 goto rel;
36502 }
36503
36504 @@ -1519,9 +1519,9 @@ static void fc_exch_recv_resp(struct fc_exch_mgr *mp, struct fc_frame *fp)
36505 sp = fc_seq_lookup_orig(mp, fp); /* doesn't hold sequence */
36506
36507 if (!sp)
36508 - atomic_inc(&mp->stats.xid_not_found);
36509 + atomic_inc_unchecked(&mp->stats.xid_not_found);
36510 else
36511 - atomic_inc(&mp->stats.non_bls_resp);
36512 + atomic_inc_unchecked(&mp->stats.non_bls_resp);
36513
36514 fc_frame_free(fp);
36515 }
36516 diff --git a/drivers/scsi/libsas/sas_ata.c b/drivers/scsi/libsas/sas_ata.c
36517 index d109cc3..09f4e7d 100644
36518 --- a/drivers/scsi/libsas/sas_ata.c
36519 +++ b/drivers/scsi/libsas/sas_ata.c
36520 @@ -529,7 +529,7 @@ static struct ata_port_operations sas_sata_ops = {
36521 .postreset = ata_std_postreset,
36522 .error_handler = ata_std_error_handler,
36523 .post_internal_cmd = sas_ata_post_internal,
36524 - .qc_defer = ata_std_qc_defer,
36525 + .qc_defer = ata_std_qc_defer,
36526 .qc_prep = ata_noop_qc_prep,
36527 .qc_issue = sas_ata_qc_issue,
36528 .qc_fill_rtf = sas_ata_qc_fill_rtf,
36529 diff --git a/drivers/scsi/lpfc/Makefile b/drivers/scsi/lpfc/Makefile
36530 index fe5d396..e93d526 100644
36531 --- a/drivers/scsi/lpfc/Makefile
36532 +++ b/drivers/scsi/lpfc/Makefile
36533 @@ -22,7 +22,7 @@
36534 ccflags-$(GCOV) := -fprofile-arcs -ftest-coverage
36535 ccflags-$(GCOV) += -O0
36536
36537 -ccflags-y += -Werror
36538 +#ccflags-y += -Werror
36539
36540 obj-$(CONFIG_SCSI_LPFC) := lpfc.o
36541
36542 diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h
36543 index e5da6da..c888d48 100644
36544 --- a/drivers/scsi/lpfc/lpfc.h
36545 +++ b/drivers/scsi/lpfc/lpfc.h
36546 @@ -416,7 +416,7 @@ struct lpfc_vport {
36547 struct dentry *debug_nodelist;
36548 struct dentry *vport_debugfs_root;
36549 struct lpfc_debugfs_trc *disc_trc;
36550 - atomic_t disc_trc_cnt;
36551 + atomic_unchecked_t disc_trc_cnt;
36552 #endif
36553 uint8_t stat_data_enabled;
36554 uint8_t stat_data_blocked;
36555 @@ -830,8 +830,8 @@ struct lpfc_hba {
36556 struct timer_list fabric_block_timer;
36557 unsigned long bit_flags;
36558 #define FABRIC_COMANDS_BLOCKED 0
36559 - atomic_t num_rsrc_err;
36560 - atomic_t num_cmd_success;
36561 + atomic_unchecked_t num_rsrc_err;
36562 + atomic_unchecked_t num_cmd_success;
36563 unsigned long last_rsrc_error_time;
36564 unsigned long last_ramp_down_time;
36565 unsigned long last_ramp_up_time;
36566 @@ -867,7 +867,7 @@ struct lpfc_hba {
36567
36568 struct dentry *debug_slow_ring_trc;
36569 struct lpfc_debugfs_trc *slow_ring_trc;
36570 - atomic_t slow_ring_trc_cnt;
36571 + atomic_unchecked_t slow_ring_trc_cnt;
36572 /* iDiag debugfs sub-directory */
36573 struct dentry *idiag_root;
36574 struct dentry *idiag_pci_cfg;
36575 diff --git a/drivers/scsi/lpfc/lpfc_debugfs.c b/drivers/scsi/lpfc/lpfc_debugfs.c
36576 index 3217d63..c417981 100644
36577 --- a/drivers/scsi/lpfc/lpfc_debugfs.c
36578 +++ b/drivers/scsi/lpfc/lpfc_debugfs.c
36579 @@ -106,7 +106,7 @@ MODULE_PARM_DESC(lpfc_debugfs_mask_disc_trc,
36580
36581 #include <linux/debugfs.h>
36582
36583 -static atomic_t lpfc_debugfs_seq_trc_cnt = ATOMIC_INIT(0);
36584 +static atomic_unchecked_t lpfc_debugfs_seq_trc_cnt = ATOMIC_INIT(0);
36585 static unsigned long lpfc_debugfs_start_time = 0L;
36586
36587 /* iDiag */
36588 @@ -147,7 +147,7 @@ lpfc_debugfs_disc_trc_data(struct lpfc_vport *vport, char *buf, int size)
36589 lpfc_debugfs_enable = 0;
36590
36591 len = 0;
36592 - index = (atomic_read(&vport->disc_trc_cnt) + 1) &
36593 + index = (atomic_read_unchecked(&vport->disc_trc_cnt) + 1) &
36594 (lpfc_debugfs_max_disc_trc - 1);
36595 for (i = index; i < lpfc_debugfs_max_disc_trc; i++) {
36596 dtp = vport->disc_trc + i;
36597 @@ -213,7 +213,7 @@ lpfc_debugfs_slow_ring_trc_data(struct lpfc_hba *phba, char *buf, int size)
36598 lpfc_debugfs_enable = 0;
36599
36600 len = 0;
36601 - index = (atomic_read(&phba->slow_ring_trc_cnt) + 1) &
36602 + index = (atomic_read_unchecked(&phba->slow_ring_trc_cnt) + 1) &
36603 (lpfc_debugfs_max_slow_ring_trc - 1);
36604 for (i = index; i < lpfc_debugfs_max_slow_ring_trc; i++) {
36605 dtp = phba->slow_ring_trc + i;
36606 @@ -636,14 +636,14 @@ lpfc_debugfs_disc_trc(struct lpfc_vport *vport, int mask, char *fmt,
36607 !vport || !vport->disc_trc)
36608 return;
36609
36610 - index = atomic_inc_return(&vport->disc_trc_cnt) &
36611 + index = atomic_inc_return_unchecked(&vport->disc_trc_cnt) &
36612 (lpfc_debugfs_max_disc_trc - 1);
36613 dtp = vport->disc_trc + index;
36614 dtp->fmt = fmt;
36615 dtp->data1 = data1;
36616 dtp->data2 = data2;
36617 dtp->data3 = data3;
36618 - dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt);
36619 + dtp->seq_cnt = atomic_inc_return_unchecked(&lpfc_debugfs_seq_trc_cnt);
36620 dtp->jif = jiffies;
36621 #endif
36622 return;
36623 @@ -674,14 +674,14 @@ lpfc_debugfs_slow_ring_trc(struct lpfc_hba *phba, char *fmt,
36624 !phba || !phba->slow_ring_trc)
36625 return;
36626
36627 - index = atomic_inc_return(&phba->slow_ring_trc_cnt) &
36628 + index = atomic_inc_return_unchecked(&phba->slow_ring_trc_cnt) &
36629 (lpfc_debugfs_max_slow_ring_trc - 1);
36630 dtp = phba->slow_ring_trc + index;
36631 dtp->fmt = fmt;
36632 dtp->data1 = data1;
36633 dtp->data2 = data2;
36634 dtp->data3 = data3;
36635 - dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt);
36636 + dtp->seq_cnt = atomic_inc_return_unchecked(&lpfc_debugfs_seq_trc_cnt);
36637 dtp->jif = jiffies;
36638 #endif
36639 return;
36640 @@ -4090,7 +4090,7 @@ lpfc_debugfs_initialize(struct lpfc_vport *vport)
36641 "slow_ring buffer\n");
36642 goto debug_failed;
36643 }
36644 - atomic_set(&phba->slow_ring_trc_cnt, 0);
36645 + atomic_set_unchecked(&phba->slow_ring_trc_cnt, 0);
36646 memset(phba->slow_ring_trc, 0,
36647 (sizeof(struct lpfc_debugfs_trc) *
36648 lpfc_debugfs_max_slow_ring_trc));
36649 @@ -4136,7 +4136,7 @@ lpfc_debugfs_initialize(struct lpfc_vport *vport)
36650 "buffer\n");
36651 goto debug_failed;
36652 }
36653 - atomic_set(&vport->disc_trc_cnt, 0);
36654 + atomic_set_unchecked(&vport->disc_trc_cnt, 0);
36655
36656 snprintf(name, sizeof(name), "discovery_trace");
36657 vport->debug_disc_trc =
36658 diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
36659 index 411ed48..967f553 100644
36660 --- a/drivers/scsi/lpfc/lpfc_init.c
36661 +++ b/drivers/scsi/lpfc/lpfc_init.c
36662 @@ -10341,8 +10341,10 @@ lpfc_init(void)
36663 "misc_register returned with status %d", error);
36664
36665 if (lpfc_enable_npiv) {
36666 - lpfc_transport_functions.vport_create = lpfc_vport_create;
36667 - lpfc_transport_functions.vport_delete = lpfc_vport_delete;
36668 + pax_open_kernel();
36669 + *(void **)&lpfc_transport_functions.vport_create = lpfc_vport_create;
36670 + *(void **)&lpfc_transport_functions.vport_delete = lpfc_vport_delete;
36671 + pax_close_kernel();
36672 }
36673 lpfc_transport_template =
36674 fc_attach_transport(&lpfc_transport_functions);
36675 diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
36676 index 66e0906..1620281 100644
36677 --- a/drivers/scsi/lpfc/lpfc_scsi.c
36678 +++ b/drivers/scsi/lpfc/lpfc_scsi.c
36679 @@ -311,7 +311,7 @@ lpfc_rampdown_queue_depth(struct lpfc_hba *phba)
36680 uint32_t evt_posted;
36681
36682 spin_lock_irqsave(&phba->hbalock, flags);
36683 - atomic_inc(&phba->num_rsrc_err);
36684 + atomic_inc_unchecked(&phba->num_rsrc_err);
36685 phba->last_rsrc_error_time = jiffies;
36686
36687 if ((phba->last_ramp_down_time + QUEUE_RAMP_DOWN_INTERVAL) > jiffies) {
36688 @@ -352,7 +352,7 @@ lpfc_rampup_queue_depth(struct lpfc_vport *vport,
36689 unsigned long flags;
36690 struct lpfc_hba *phba = vport->phba;
36691 uint32_t evt_posted;
36692 - atomic_inc(&phba->num_cmd_success);
36693 + atomic_inc_unchecked(&phba->num_cmd_success);
36694
36695 if (vport->cfg_lun_queue_depth <= queue_depth)
36696 return;
36697 @@ -396,8 +396,8 @@ lpfc_ramp_down_queue_handler(struct lpfc_hba *phba)
36698 unsigned long num_rsrc_err, num_cmd_success;
36699 int i;
36700
36701 - num_rsrc_err = atomic_read(&phba->num_rsrc_err);
36702 - num_cmd_success = atomic_read(&phba->num_cmd_success);
36703 + num_rsrc_err = atomic_read_unchecked(&phba->num_rsrc_err);
36704 + num_cmd_success = atomic_read_unchecked(&phba->num_cmd_success);
36705
36706 /*
36707 * The error and success command counters are global per
36708 @@ -425,8 +425,8 @@ lpfc_ramp_down_queue_handler(struct lpfc_hba *phba)
36709 }
36710 }
36711 lpfc_destroy_vport_work_array(phba, vports);
36712 - atomic_set(&phba->num_rsrc_err, 0);
36713 - atomic_set(&phba->num_cmd_success, 0);
36714 + atomic_set_unchecked(&phba->num_rsrc_err, 0);
36715 + atomic_set_unchecked(&phba->num_cmd_success, 0);
36716 }
36717
36718 /**
36719 @@ -460,8 +460,8 @@ lpfc_ramp_up_queue_handler(struct lpfc_hba *phba)
36720 }
36721 }
36722 lpfc_destroy_vport_work_array(phba, vports);
36723 - atomic_set(&phba->num_rsrc_err, 0);
36724 - atomic_set(&phba->num_cmd_success, 0);
36725 + atomic_set_unchecked(&phba->num_rsrc_err, 0);
36726 + atomic_set_unchecked(&phba->num_cmd_success, 0);
36727 }
36728
36729 /**
36730 diff --git a/drivers/scsi/pmcraid.c b/drivers/scsi/pmcraid.c
36731 index ea8a0b4..812a124 100644
36732 --- a/drivers/scsi/pmcraid.c
36733 +++ b/drivers/scsi/pmcraid.c
36734 @@ -200,8 +200,8 @@ static int pmcraid_slave_alloc(struct scsi_device *scsi_dev)
36735 res->scsi_dev = scsi_dev;
36736 scsi_dev->hostdata = res;
36737 res->change_detected = 0;
36738 - atomic_set(&res->read_failures, 0);
36739 - atomic_set(&res->write_failures, 0);
36740 + atomic_set_unchecked(&res->read_failures, 0);
36741 + atomic_set_unchecked(&res->write_failures, 0);
36742 rc = 0;
36743 }
36744 spin_unlock_irqrestore(&pinstance->resource_lock, lock_flags);
36745 @@ -2676,9 +2676,9 @@ static int pmcraid_error_handler(struct pmcraid_cmd *cmd)
36746
36747 /* If this was a SCSI read/write command keep count of errors */
36748 if (SCSI_CMD_TYPE(scsi_cmd->cmnd[0]) == SCSI_READ_CMD)
36749 - atomic_inc(&res->read_failures);
36750 + atomic_inc_unchecked(&res->read_failures);
36751 else if (SCSI_CMD_TYPE(scsi_cmd->cmnd[0]) == SCSI_WRITE_CMD)
36752 - atomic_inc(&res->write_failures);
36753 + atomic_inc_unchecked(&res->write_failures);
36754
36755 if (!RES_IS_GSCSI(res->cfg_entry) &&
36756 masked_ioasc != PMCRAID_IOASC_HW_DEVICE_BUS_STATUS_ERROR) {
36757 @@ -3534,7 +3534,7 @@ static int pmcraid_queuecommand_lck(
36758 * block of scsi_cmd which is re-used (e.g. cancel/abort), which uses
36759 * hrrq_id assigned here in queuecommand
36760 */
36761 - ioarcb->hrrq_id = atomic_add_return(1, &(pinstance->last_message_id)) %
36762 + ioarcb->hrrq_id = atomic_add_return_unchecked(1, &(pinstance->last_message_id)) %
36763 pinstance->num_hrrq;
36764 cmd->cmd_done = pmcraid_io_done;
36765
36766 @@ -3859,7 +3859,7 @@ static long pmcraid_ioctl_passthrough(
36767 * block of scsi_cmd which is re-used (e.g. cancel/abort), which uses
36768 * hrrq_id assigned here in queuecommand
36769 */
36770 - ioarcb->hrrq_id = atomic_add_return(1, &(pinstance->last_message_id)) %
36771 + ioarcb->hrrq_id = atomic_add_return_unchecked(1, &(pinstance->last_message_id)) %
36772 pinstance->num_hrrq;
36773
36774 if (request_size) {
36775 @@ -4497,7 +4497,7 @@ static void pmcraid_worker_function(struct work_struct *workp)
36776
36777 pinstance = container_of(workp, struct pmcraid_instance, worker_q);
36778 /* add resources only after host is added into system */
36779 - if (!atomic_read(&pinstance->expose_resources))
36780 + if (!atomic_read_unchecked(&pinstance->expose_resources))
36781 return;
36782
36783 fw_version = be16_to_cpu(pinstance->inq_data->fw_version);
36784 @@ -5331,8 +5331,8 @@ static int __devinit pmcraid_init_instance(
36785 init_waitqueue_head(&pinstance->reset_wait_q);
36786
36787 atomic_set(&pinstance->outstanding_cmds, 0);
36788 - atomic_set(&pinstance->last_message_id, 0);
36789 - atomic_set(&pinstance->expose_resources, 0);
36790 + atomic_set_unchecked(&pinstance->last_message_id, 0);
36791 + atomic_set_unchecked(&pinstance->expose_resources, 0);
36792
36793 INIT_LIST_HEAD(&pinstance->free_res_q);
36794 INIT_LIST_HEAD(&pinstance->used_res_q);
36795 @@ -6047,7 +6047,7 @@ static int __devinit pmcraid_probe(
36796 /* Schedule worker thread to handle CCN and take care of adding and
36797 * removing devices to OS
36798 */
36799 - atomic_set(&pinstance->expose_resources, 1);
36800 + atomic_set_unchecked(&pinstance->expose_resources, 1);
36801 schedule_work(&pinstance->worker_q);
36802 return rc;
36803
36804 diff --git a/drivers/scsi/pmcraid.h b/drivers/scsi/pmcraid.h
36805 index e1d150f..6c6df44 100644
36806 --- a/drivers/scsi/pmcraid.h
36807 +++ b/drivers/scsi/pmcraid.h
36808 @@ -748,7 +748,7 @@ struct pmcraid_instance {
36809 struct pmcraid_isr_param hrrq_vector[PMCRAID_NUM_MSIX_VECTORS];
36810
36811 /* Message id as filled in last fired IOARCB, used to identify HRRQ */
36812 - atomic_t last_message_id;
36813 + atomic_unchecked_t last_message_id;
36814
36815 /* configuration table */
36816 struct pmcraid_config_table *cfg_table;
36817 @@ -777,7 +777,7 @@ struct pmcraid_instance {
36818 atomic_t outstanding_cmds;
36819
36820 /* should add/delete resources to mid-layer now ?*/
36821 - atomic_t expose_resources;
36822 + atomic_unchecked_t expose_resources;
36823
36824
36825
36826 @@ -813,8 +813,8 @@ struct pmcraid_resource_entry {
36827 struct pmcraid_config_table_entry_ext cfg_entry_ext;
36828 };
36829 struct scsi_device *scsi_dev; /* Link scsi_device structure */
36830 - atomic_t read_failures; /* count of failed READ commands */
36831 - atomic_t write_failures; /* count of failed WRITE commands */
36832 + atomic_unchecked_t read_failures; /* count of failed READ commands */
36833 + atomic_unchecked_t write_failures; /* count of failed WRITE commands */
36834
36835 /* To indicate add/delete/modify during CCN */
36836 u8 change_detected;
36837 diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c
36838 index 5ab9530..2dd80f7 100644
36839 --- a/drivers/scsi/qla2xxx/qla_attr.c
36840 +++ b/drivers/scsi/qla2xxx/qla_attr.c
36841 @@ -1855,7 +1855,7 @@ qla24xx_vport_disable(struct fc_vport *fc_vport, bool disable)
36842 return 0;
36843 }
36844
36845 -struct fc_function_template qla2xxx_transport_functions = {
36846 +fc_function_template_no_const qla2xxx_transport_functions = {
36847
36848 .show_host_node_name = 1,
36849 .show_host_port_name = 1,
36850 @@ -1902,7 +1902,7 @@ struct fc_function_template qla2xxx_transport_functions = {
36851 .bsg_timeout = qla24xx_bsg_timeout,
36852 };
36853
36854 -struct fc_function_template qla2xxx_transport_vport_functions = {
36855 +fc_function_template_no_const qla2xxx_transport_vport_functions = {
36856
36857 .show_host_node_name = 1,
36858 .show_host_port_name = 1,
36859 diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h
36860 index 39007f5..7fafc64 100644
36861 --- a/drivers/scsi/qla2xxx/qla_def.h
36862 +++ b/drivers/scsi/qla2xxx/qla_def.h
36863 @@ -2284,7 +2284,7 @@ struct isp_operations {
36864 int (*start_scsi) (srb_t *);
36865 int (*abort_isp) (struct scsi_qla_host *);
36866 int (*iospace_config)(struct qla_hw_data*);
36867 -};
36868 +} __no_const;
36869
36870 /* MSI-X Support *************************************************************/
36871
36872 diff --git a/drivers/scsi/qla2xxx/qla_gbl.h b/drivers/scsi/qla2xxx/qla_gbl.h
36873 index 9eacd2d..d79629c 100644
36874 --- a/drivers/scsi/qla2xxx/qla_gbl.h
36875 +++ b/drivers/scsi/qla2xxx/qla_gbl.h
36876 @@ -484,8 +484,8 @@ extern void qla2x00_get_sym_node_name(scsi_qla_host_t *, uint8_t *);
36877 struct device_attribute;
36878 extern struct device_attribute *qla2x00_host_attrs[];
36879 struct fc_function_template;
36880 -extern struct fc_function_template qla2xxx_transport_functions;
36881 -extern struct fc_function_template qla2xxx_transport_vport_functions;
36882 +extern fc_function_template_no_const qla2xxx_transport_functions;
36883 +extern fc_function_template_no_const qla2xxx_transport_vport_functions;
36884 extern void qla2x00_alloc_sysfs_attr(scsi_qla_host_t *);
36885 extern void qla2x00_free_sysfs_attr(scsi_qla_host_t *);
36886 extern void qla2x00_init_host_attr(scsi_qla_host_t *);
36887 diff --git a/drivers/scsi/qla4xxx/ql4_def.h b/drivers/scsi/qla4xxx/ql4_def.h
36888 index 96a5616..eeb185a 100644
36889 --- a/drivers/scsi/qla4xxx/ql4_def.h
36890 +++ b/drivers/scsi/qla4xxx/ql4_def.h
36891 @@ -268,7 +268,7 @@ struct ddb_entry {
36892 * (4000 only) */
36893 atomic_t relogin_timer; /* Max Time to wait for
36894 * relogin to complete */
36895 - atomic_t relogin_retry_count; /* Num of times relogin has been
36896 + atomic_unchecked_t relogin_retry_count; /* Num of times relogin has been
36897 * retried */
36898 uint32_t default_time2wait; /* Default Min time between
36899 * relogins (+aens) */
36900 diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c
36901 index cd15678..f7e6846 100644
36902 --- a/drivers/scsi/qla4xxx/ql4_os.c
36903 +++ b/drivers/scsi/qla4xxx/ql4_os.c
36904 @@ -2615,12 +2615,12 @@ static void qla4xxx_check_relogin_flash_ddb(struct iscsi_cls_session *cls_sess)
36905 */
36906 if (!iscsi_is_session_online(cls_sess)) {
36907 /* Reset retry relogin timer */
36908 - atomic_inc(&ddb_entry->relogin_retry_count);
36909 + atomic_inc_unchecked(&ddb_entry->relogin_retry_count);
36910 DEBUG2(ql4_printk(KERN_INFO, ha,
36911 "%s: index[%d] relogin timed out-retrying"
36912 " relogin (%d), retry (%d)\n", __func__,
36913 ddb_entry->fw_ddb_index,
36914 - atomic_read(&ddb_entry->relogin_retry_count),
36915 + atomic_read_unchecked(&ddb_entry->relogin_retry_count),
36916 ddb_entry->default_time2wait + 4));
36917 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
36918 atomic_set(&ddb_entry->retry_relogin_timer,
36919 @@ -4517,7 +4517,7 @@ static void qla4xxx_setup_flash_ddb_entry(struct scsi_qla_host *ha,
36920
36921 atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY);
36922 atomic_set(&ddb_entry->relogin_timer, 0);
36923 - atomic_set(&ddb_entry->relogin_retry_count, 0);
36924 + atomic_set_unchecked(&ddb_entry->relogin_retry_count, 0);
36925 def_timeout = le16_to_cpu(ddb_entry->fw_ddb_entry.def_timeout);
36926 ddb_entry->default_relogin_timeout =
36927 (def_timeout > LOGIN_TOV) && (def_timeout < LOGIN_TOV * 10) ?
36928 diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c
36929 index bbbc9c9..ce22f77 100644
36930 --- a/drivers/scsi/scsi.c
36931 +++ b/drivers/scsi/scsi.c
36932 @@ -659,7 +659,7 @@ int scsi_dispatch_cmd(struct scsi_cmnd *cmd)
36933 unsigned long timeout;
36934 int rtn = 0;
36935
36936 - atomic_inc(&cmd->device->iorequest_cnt);
36937 + atomic_inc_unchecked(&cmd->device->iorequest_cnt);
36938
36939 /* check if the device is still usable */
36940 if (unlikely(cmd->device->sdev_state == SDEV_DEL)) {
36941 diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
36942 index 495db80..fb37d59 100644
36943 --- a/drivers/scsi/scsi_lib.c
36944 +++ b/drivers/scsi/scsi_lib.c
36945 @@ -1422,7 +1422,7 @@ static void scsi_kill_request(struct request *req, struct request_queue *q)
36946 shost = sdev->host;
36947 scsi_init_cmd_errh(cmd);
36948 cmd->result = DID_NO_CONNECT << 16;
36949 - atomic_inc(&cmd->device->iorequest_cnt);
36950 + atomic_inc_unchecked(&cmd->device->iorequest_cnt);
36951
36952 /*
36953 * SCSI request completion path will do scsi_device_unbusy(),
36954 @@ -1448,9 +1448,9 @@ static void scsi_softirq_done(struct request *rq)
36955
36956 INIT_LIST_HEAD(&cmd->eh_entry);
36957
36958 - atomic_inc(&cmd->device->iodone_cnt);
36959 + atomic_inc_unchecked(&cmd->device->iodone_cnt);
36960 if (cmd->result)
36961 - atomic_inc(&cmd->device->ioerr_cnt);
36962 + atomic_inc_unchecked(&cmd->device->ioerr_cnt);
36963
36964 disposition = scsi_decide_disposition(cmd);
36965 if (disposition != SUCCESS &&
36966 diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c
36967 index bb7c482..7551a95 100644
36968 --- a/drivers/scsi/scsi_sysfs.c
36969 +++ b/drivers/scsi/scsi_sysfs.c
36970 @@ -660,7 +660,7 @@ show_iostat_##field(struct device *dev, struct device_attribute *attr, \
36971 char *buf) \
36972 { \
36973 struct scsi_device *sdev = to_scsi_device(dev); \
36974 - unsigned long long count = atomic_read(&sdev->field); \
36975 + unsigned long long count = atomic_read_unchecked(&sdev->field); \
36976 return snprintf(buf, 20, "0x%llx\n", count); \
36977 } \
36978 static DEVICE_ATTR(field, S_IRUGO, show_iostat_##field, NULL)
36979 diff --git a/drivers/scsi/scsi_tgt_lib.c b/drivers/scsi/scsi_tgt_lib.c
36980 index 84a1fdf..693b0d6 100644
36981 --- a/drivers/scsi/scsi_tgt_lib.c
36982 +++ b/drivers/scsi/scsi_tgt_lib.c
36983 @@ -362,7 +362,7 @@ static int scsi_map_user_pages(struct scsi_tgt_cmd *tcmd, struct scsi_cmnd *cmd,
36984 int err;
36985
36986 dprintk("%lx %u\n", uaddr, len);
36987 - err = blk_rq_map_user(q, rq, NULL, (void *)uaddr, len, GFP_KERNEL);
36988 + err = blk_rq_map_user(q, rq, NULL, (void __user *)uaddr, len, GFP_KERNEL);
36989 if (err) {
36990 /*
36991 * TODO: need to fixup sg_tablesize, max_segment_size,
36992 diff --git a/drivers/scsi/scsi_transport_fc.c b/drivers/scsi/scsi_transport_fc.c
36993 index 5797604..289a5b5 100644
36994 --- a/drivers/scsi/scsi_transport_fc.c
36995 +++ b/drivers/scsi/scsi_transport_fc.c
36996 @@ -498,7 +498,7 @@ static DECLARE_TRANSPORT_CLASS(fc_vport_class,
36997 * Netlink Infrastructure
36998 */
36999
37000 -static atomic_t fc_event_seq;
37001 +static atomic_unchecked_t fc_event_seq;
37002
37003 /**
37004 * fc_get_event_number - Obtain the next sequential FC event number
37005 @@ -511,7 +511,7 @@ static atomic_t fc_event_seq;
37006 u32
37007 fc_get_event_number(void)
37008 {
37009 - return atomic_add_return(1, &fc_event_seq);
37010 + return atomic_add_return_unchecked(1, &fc_event_seq);
37011 }
37012 EXPORT_SYMBOL(fc_get_event_number);
37013
37014 @@ -659,7 +659,7 @@ static __init int fc_transport_init(void)
37015 {
37016 int error;
37017
37018 - atomic_set(&fc_event_seq, 0);
37019 + atomic_set_unchecked(&fc_event_seq, 0);
37020
37021 error = transport_class_register(&fc_host_class);
37022 if (error)
37023 @@ -849,7 +849,7 @@ static int fc_str_to_dev_loss(const char *buf, unsigned long *val)
37024 char *cp;
37025
37026 *val = simple_strtoul(buf, &cp, 0);
37027 - if ((*cp && (*cp != '\n')) || (*val < 0))
37028 + if (*cp && (*cp != '\n'))
37029 return -EINVAL;
37030 /*
37031 * Check for overflow; dev_loss_tmo is u32
37032 diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c
37033 index 1cf640e..78e9014 100644
37034 --- a/drivers/scsi/scsi_transport_iscsi.c
37035 +++ b/drivers/scsi/scsi_transport_iscsi.c
37036 @@ -79,7 +79,7 @@ struct iscsi_internal {
37037 struct transport_container session_cont;
37038 };
37039
37040 -static atomic_t iscsi_session_nr; /* sysfs session id for next new session */
37041 +static atomic_unchecked_t iscsi_session_nr; /* sysfs session id for next new session */
37042 static struct workqueue_struct *iscsi_eh_timer_workq;
37043
37044 static DEFINE_IDA(iscsi_sess_ida);
37045 @@ -1064,7 +1064,7 @@ int iscsi_add_session(struct iscsi_cls_session *session, unsigned int target_id)
37046 int err;
37047
37048 ihost = shost->shost_data;
37049 - session->sid = atomic_add_return(1, &iscsi_session_nr);
37050 + session->sid = atomic_add_return_unchecked(1, &iscsi_session_nr);
37051
37052 if (target_id == ISCSI_MAX_TARGET) {
37053 id = ida_simple_get(&iscsi_sess_ida, 0, 0, GFP_KERNEL);
37054 @@ -2940,7 +2940,7 @@ static __init int iscsi_transport_init(void)
37055 printk(KERN_INFO "Loading iSCSI transport class v%s.\n",
37056 ISCSI_TRANSPORT_VERSION);
37057
37058 - atomic_set(&iscsi_session_nr, 0);
37059 + atomic_set_unchecked(&iscsi_session_nr, 0);
37060
37061 err = class_register(&iscsi_transport_class);
37062 if (err)
37063 diff --git a/drivers/scsi/scsi_transport_srp.c b/drivers/scsi/scsi_transport_srp.c
37064 index 21a045e..ec89e03 100644
37065 --- a/drivers/scsi/scsi_transport_srp.c
37066 +++ b/drivers/scsi/scsi_transport_srp.c
37067 @@ -33,7 +33,7 @@
37068 #include "scsi_transport_srp_internal.h"
37069
37070 struct srp_host_attrs {
37071 - atomic_t next_port_id;
37072 + atomic_unchecked_t next_port_id;
37073 };
37074 #define to_srp_host_attrs(host) ((struct srp_host_attrs *)(host)->shost_data)
37075
37076 @@ -62,7 +62,7 @@ static int srp_host_setup(struct transport_container *tc, struct device *dev,
37077 struct Scsi_Host *shost = dev_to_shost(dev);
37078 struct srp_host_attrs *srp_host = to_srp_host_attrs(shost);
37079
37080 - atomic_set(&srp_host->next_port_id, 0);
37081 + atomic_set_unchecked(&srp_host->next_port_id, 0);
37082 return 0;
37083 }
37084
37085 @@ -211,7 +211,7 @@ struct srp_rport *srp_rport_add(struct Scsi_Host *shost,
37086 memcpy(rport->port_id, ids->port_id, sizeof(rport->port_id));
37087 rport->roles = ids->roles;
37088
37089 - id = atomic_inc_return(&to_srp_host_attrs(shost)->next_port_id);
37090 + id = atomic_inc_return_unchecked(&to_srp_host_attrs(shost)->next_port_id);
37091 dev_set_name(&rport->dev, "port-%d:%d", shost->host_no, id);
37092
37093 transport_setup_device(&rport->dev);
37094 diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
37095 index 9c5c5f2..8414557 100644
37096 --- a/drivers/scsi/sg.c
37097 +++ b/drivers/scsi/sg.c
37098 @@ -1101,7 +1101,7 @@ sg_ioctl(struct file *filp, unsigned int cmd_in, unsigned long arg)
37099 sdp->disk->disk_name,
37100 MKDEV(SCSI_GENERIC_MAJOR, sdp->index),
37101 NULL,
37102 - (char *)arg);
37103 + (char __user *)arg);
37104 case BLKTRACESTART:
37105 return blk_trace_startstop(sdp->device->request_queue, 1);
37106 case BLKTRACESTOP:
37107 diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
37108 index 1041cb8..4a946fa 100644
37109 --- a/drivers/spi/spi.c
37110 +++ b/drivers/spi/spi.c
37111 @@ -1453,7 +1453,7 @@ int spi_bus_unlock(struct spi_master *master)
37112 EXPORT_SYMBOL_GPL(spi_bus_unlock);
37113
37114 /* portable code must never pass more than 32 bytes */
37115 -#define SPI_BUFSIZ max(32,SMP_CACHE_BYTES)
37116 +#define SPI_BUFSIZ max(32UL,SMP_CACHE_BYTES)
37117
37118 static u8 *buf;
37119
37120 diff --git a/drivers/staging/octeon/ethernet-rx.c b/drivers/staging/octeon/ethernet-rx.c
37121 index 34afc16..ffe44dd 100644
37122 --- a/drivers/staging/octeon/ethernet-rx.c
37123 +++ b/drivers/staging/octeon/ethernet-rx.c
37124 @@ -421,11 +421,11 @@ static int cvm_oct_napi_poll(struct napi_struct *napi, int budget)
37125 /* Increment RX stats for virtual ports */
37126 if (work->ipprt >= CVMX_PIP_NUM_INPUT_PORTS) {
37127 #ifdef CONFIG_64BIT
37128 - atomic64_add(1, (atomic64_t *)&priv->stats.rx_packets);
37129 - atomic64_add(skb->len, (atomic64_t *)&priv->stats.rx_bytes);
37130 + atomic64_add_unchecked(1, (atomic64_unchecked_t *)&priv->stats.rx_packets);
37131 + atomic64_add_unchecked(skb->len, (atomic64_unchecked_t *)&priv->stats.rx_bytes);
37132 #else
37133 - atomic_add(1, (atomic_t *)&priv->stats.rx_packets);
37134 - atomic_add(skb->len, (atomic_t *)&priv->stats.rx_bytes);
37135 + atomic_add_unchecked(1, (atomic_unchecked_t *)&priv->stats.rx_packets);
37136 + atomic_add_unchecked(skb->len, (atomic_unchecked_t *)&priv->stats.rx_bytes);
37137 #endif
37138 }
37139 netif_receive_skb(skb);
37140 @@ -437,9 +437,9 @@ static int cvm_oct_napi_poll(struct napi_struct *napi, int budget)
37141 dev->name);
37142 */
37143 #ifdef CONFIG_64BIT
37144 - atomic64_add(1, (atomic64_t *)&priv->stats.rx_dropped);
37145 + atomic64_unchecked_add(1, (atomic64_unchecked_t *)&priv->stats.rx_dropped);
37146 #else
37147 - atomic_add(1, (atomic_t *)&priv->stats.rx_dropped);
37148 + atomic_add_unchecked(1, (atomic_unchecked_t *)&priv->stats.rx_dropped);
37149 #endif
37150 dev_kfree_skb_irq(skb);
37151 }
37152 diff --git a/drivers/staging/octeon/ethernet.c b/drivers/staging/octeon/ethernet.c
37153 index 18f7a79..cc3bc24 100644
37154 --- a/drivers/staging/octeon/ethernet.c
37155 +++ b/drivers/staging/octeon/ethernet.c
37156 @@ -259,11 +259,11 @@ static struct net_device_stats *cvm_oct_common_get_stats(struct net_device *dev)
37157 * since the RX tasklet also increments it.
37158 */
37159 #ifdef CONFIG_64BIT
37160 - atomic64_add(rx_status.dropped_packets,
37161 - (atomic64_t *)&priv->stats.rx_dropped);
37162 + atomic64_add_unchecked(rx_status.dropped_packets,
37163 + (atomic64_unchecked_t *)&priv->stats.rx_dropped);
37164 #else
37165 - atomic_add(rx_status.dropped_packets,
37166 - (atomic_t *)&priv->stats.rx_dropped);
37167 + atomic_add_unchecked(rx_status.dropped_packets,
37168 + (atomic_unchecked_t *)&priv->stats.rx_dropped);
37169 #endif
37170 }
37171
37172 diff --git a/drivers/staging/rtl8712/rtl871x_io.h b/drivers/staging/rtl8712/rtl871x_io.h
37173 index dc23395..cf7e9b1 100644
37174 --- a/drivers/staging/rtl8712/rtl871x_io.h
37175 +++ b/drivers/staging/rtl8712/rtl871x_io.h
37176 @@ -108,7 +108,7 @@ struct _io_ops {
37177 u8 *pmem);
37178 u32 (*_write_port)(struct intf_hdl *pintfhdl, u32 addr, u32 cnt,
37179 u8 *pmem);
37180 -};
37181 +} __no_const;
37182
37183 struct io_req {
37184 struct list_head list;
37185 diff --git a/drivers/staging/sbe-2t3e3/netdev.c b/drivers/staging/sbe-2t3e3/netdev.c
37186 index c7b5e8b..783d6cb 100644
37187 --- a/drivers/staging/sbe-2t3e3/netdev.c
37188 +++ b/drivers/staging/sbe-2t3e3/netdev.c
37189 @@ -51,7 +51,7 @@ int t3e3_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
37190 t3e3_if_config(sc, cmd_2t3e3, (char *)&param, &resp, &rlen);
37191
37192 if (rlen)
37193 - if (copy_to_user(data, &resp, rlen))
37194 + if (rlen > sizeof resp || copy_to_user(data, &resp, rlen))
37195 return -EFAULT;
37196
37197 return 0;
37198 diff --git a/drivers/staging/speakup/speakup_soft.c b/drivers/staging/speakup/speakup_soft.c
37199 index 42cdafe..2769103 100644
37200 --- a/drivers/staging/speakup/speakup_soft.c
37201 +++ b/drivers/staging/speakup/speakup_soft.c
37202 @@ -241,11 +241,11 @@ static ssize_t softsynth_read(struct file *fp, char *buf, size_t count,
37203 break;
37204 } else if (!initialized) {
37205 if (*init) {
37206 - ch = *init;
37207 init++;
37208 } else {
37209 initialized = 1;
37210 }
37211 + ch = *init;
37212 } else {
37213 ch = synth_buffer_getc();
37214 }
37215 diff --git a/drivers/staging/usbip/usbip_common.h b/drivers/staging/usbip/usbip_common.h
37216 index 5d89c0f..9261317 100644
37217 --- a/drivers/staging/usbip/usbip_common.h
37218 +++ b/drivers/staging/usbip/usbip_common.h
37219 @@ -289,7 +289,7 @@ struct usbip_device {
37220 void (*shutdown)(struct usbip_device *);
37221 void (*reset)(struct usbip_device *);
37222 void (*unusable)(struct usbip_device *);
37223 - } eh_ops;
37224 + } __no_const eh_ops;
37225 };
37226
37227 #define kthread_get_run(threadfn, data, namefmt, ...) \
37228 diff --git a/drivers/staging/usbip/vhci.h b/drivers/staging/usbip/vhci.h
37229 index 88b3298..3783eee 100644
37230 --- a/drivers/staging/usbip/vhci.h
37231 +++ b/drivers/staging/usbip/vhci.h
37232 @@ -88,7 +88,7 @@ struct vhci_hcd {
37233 unsigned resuming:1;
37234 unsigned long re_timeout;
37235
37236 - atomic_t seqnum;
37237 + atomic_unchecked_t seqnum;
37238
37239 /*
37240 * NOTE:
37241 diff --git a/drivers/staging/usbip/vhci_hcd.c b/drivers/staging/usbip/vhci_hcd.c
37242 index f708cba..2de6d72 100644
37243 --- a/drivers/staging/usbip/vhci_hcd.c
37244 +++ b/drivers/staging/usbip/vhci_hcd.c
37245 @@ -488,7 +488,7 @@ static void vhci_tx_urb(struct urb *urb)
37246 return;
37247 }
37248
37249 - priv->seqnum = atomic_inc_return(&the_controller->seqnum);
37250 + priv->seqnum = atomic_inc_return_unchecked(&the_controller->seqnum);
37251 if (priv->seqnum == 0xffff)
37252 dev_info(&urb->dev->dev, "seqnum max\n");
37253
37254 @@ -740,7 +740,7 @@ static int vhci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status)
37255 return -ENOMEM;
37256 }
37257
37258 - unlink->seqnum = atomic_inc_return(&the_controller->seqnum);
37259 + unlink->seqnum = atomic_inc_return_unchecked(&the_controller->seqnum);
37260 if (unlink->seqnum == 0xffff)
37261 pr_info("seqnum max\n");
37262
37263 @@ -928,7 +928,7 @@ static int vhci_start(struct usb_hcd *hcd)
37264 vdev->rhport = rhport;
37265 }
37266
37267 - atomic_set(&vhci->seqnum, 0);
37268 + atomic_set_unchecked(&vhci->seqnum, 0);
37269 spin_lock_init(&vhci->lock);
37270
37271 hcd->power_budget = 0; /* no limit */
37272 diff --git a/drivers/staging/usbip/vhci_rx.c b/drivers/staging/usbip/vhci_rx.c
37273 index f0eaf04..5a82e06 100644
37274 --- a/drivers/staging/usbip/vhci_rx.c
37275 +++ b/drivers/staging/usbip/vhci_rx.c
37276 @@ -77,7 +77,7 @@ static void vhci_recv_ret_submit(struct vhci_device *vdev,
37277 if (!urb) {
37278 pr_err("cannot find a urb of seqnum %u\n", pdu->base.seqnum);
37279 pr_info("max seqnum %d\n",
37280 - atomic_read(&the_controller->seqnum));
37281 + atomic_read_unchecked(&the_controller->seqnum));
37282 usbip_event_add(ud, VDEV_EVENT_ERROR_TCP);
37283 return;
37284 }
37285 diff --git a/drivers/staging/vt6655/hostap.c b/drivers/staging/vt6655/hostap.c
37286 index 7735027..30eed13 100644
37287 --- a/drivers/staging/vt6655/hostap.c
37288 +++ b/drivers/staging/vt6655/hostap.c
37289 @@ -79,14 +79,13 @@ static int msglevel =MSG_LEVEL_INFO;
37290 *
37291 */
37292
37293 +static net_device_ops_no_const apdev_netdev_ops;
37294 +
37295 static int hostap_enable_hostapd(PSDevice pDevice, int rtnl_locked)
37296 {
37297 PSDevice apdev_priv;
37298 struct net_device *dev = pDevice->dev;
37299 int ret;
37300 - const struct net_device_ops apdev_netdev_ops = {
37301 - .ndo_start_xmit = pDevice->tx_80211,
37302 - };
37303
37304 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "%s: Enabling hostapd mode\n", dev->name);
37305
37306 @@ -98,6 +97,8 @@ static int hostap_enable_hostapd(PSDevice pDevice, int rtnl_locked)
37307 *apdev_priv = *pDevice;
37308 memcpy(pDevice->apdev->dev_addr, dev->dev_addr, ETH_ALEN);
37309
37310 + /* only half broken now */
37311 + apdev_netdev_ops.ndo_start_xmit = pDevice->tx_80211;
37312 pDevice->apdev->netdev_ops = &apdev_netdev_ops;
37313
37314 pDevice->apdev->type = ARPHRD_IEEE80211;
37315 diff --git a/drivers/staging/vt6656/hostap.c b/drivers/staging/vt6656/hostap.c
37316 index 51b5adf..098e320 100644
37317 --- a/drivers/staging/vt6656/hostap.c
37318 +++ b/drivers/staging/vt6656/hostap.c
37319 @@ -80,14 +80,13 @@ static int msglevel =MSG_LEVEL_INFO;
37320 *
37321 */
37322
37323 +static net_device_ops_no_const apdev_netdev_ops;
37324 +
37325 static int hostap_enable_hostapd(PSDevice pDevice, int rtnl_locked)
37326 {
37327 PSDevice apdev_priv;
37328 struct net_device *dev = pDevice->dev;
37329 int ret;
37330 - const struct net_device_ops apdev_netdev_ops = {
37331 - .ndo_start_xmit = pDevice->tx_80211,
37332 - };
37333
37334 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "%s: Enabling hostapd mode\n", dev->name);
37335
37336 @@ -99,6 +98,8 @@ static int hostap_enable_hostapd(PSDevice pDevice, int rtnl_locked)
37337 *apdev_priv = *pDevice;
37338 memcpy(pDevice->apdev->dev_addr, dev->dev_addr, ETH_ALEN);
37339
37340 + /* only half broken now */
37341 + apdev_netdev_ops.ndo_start_xmit = pDevice->tx_80211;
37342 pDevice->apdev->netdev_ops = &apdev_netdev_ops;
37343
37344 pDevice->apdev->type = ARPHRD_IEEE80211;
37345 diff --git a/drivers/staging/wlan-ng/hfa384x_usb.c b/drivers/staging/wlan-ng/hfa384x_usb.c
37346 index 7843dfd..3db105f 100644
37347 --- a/drivers/staging/wlan-ng/hfa384x_usb.c
37348 +++ b/drivers/staging/wlan-ng/hfa384x_usb.c
37349 @@ -204,7 +204,7 @@ static void unlocked_usbctlx_complete(hfa384x_t *hw, hfa384x_usbctlx_t *ctlx);
37350
37351 struct usbctlx_completor {
37352 int (*complete) (struct usbctlx_completor *);
37353 -};
37354 +} __no_const;
37355
37356 static int
37357 hfa384x_usbctlx_complete_sync(hfa384x_t *hw,
37358 diff --git a/drivers/staging/zcache/tmem.c b/drivers/staging/zcache/tmem.c
37359 index 1ca66ea..76f1343 100644
37360 --- a/drivers/staging/zcache/tmem.c
37361 +++ b/drivers/staging/zcache/tmem.c
37362 @@ -39,7 +39,7 @@
37363 * A tmem host implementation must use this function to register callbacks
37364 * for memory allocation.
37365 */
37366 -static struct tmem_hostops tmem_hostops;
37367 +static tmem_hostops_no_const tmem_hostops;
37368
37369 static void tmem_objnode_tree_init(void);
37370
37371 @@ -53,7 +53,7 @@ void tmem_register_hostops(struct tmem_hostops *m)
37372 * A tmem host implementation must use this function to register
37373 * callbacks for a page-accessible memory (PAM) implementation
37374 */
37375 -static struct tmem_pamops tmem_pamops;
37376 +static tmem_pamops_no_const tmem_pamops;
37377
37378 void tmem_register_pamops(struct tmem_pamops *m)
37379 {
37380 diff --git a/drivers/staging/zcache/tmem.h b/drivers/staging/zcache/tmem.h
37381 index 0d4aa82..f7832d4 100644
37382 --- a/drivers/staging/zcache/tmem.h
37383 +++ b/drivers/staging/zcache/tmem.h
37384 @@ -180,6 +180,7 @@ struct tmem_pamops {
37385 void (*new_obj)(struct tmem_obj *);
37386 int (*replace_in_obj)(void *, struct tmem_obj *);
37387 };
37388 +typedef struct tmem_pamops __no_const tmem_pamops_no_const;
37389 extern void tmem_register_pamops(struct tmem_pamops *m);
37390
37391 /* memory allocation methods provided by the host implementation */
37392 @@ -189,6 +190,7 @@ struct tmem_hostops {
37393 struct tmem_objnode *(*objnode_alloc)(struct tmem_pool *);
37394 void (*objnode_free)(struct tmem_objnode *, struct tmem_pool *);
37395 };
37396 +typedef struct tmem_hostops __no_const tmem_hostops_no_const;
37397 extern void tmem_register_hostops(struct tmem_hostops *m);
37398
37399 /* core tmem accessor functions */
37400 diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
37401 index c6c385f..b23c65d 100644
37402 --- a/drivers/target/target_core_transport.c
37403 +++ b/drivers/target/target_core_transport.c
37404 @@ -1233,7 +1233,7 @@ struct se_device *transport_add_device_to_core_hba(
37405 spin_lock_init(&dev->se_port_lock);
37406 spin_lock_init(&dev->se_tmr_lock);
37407 spin_lock_init(&dev->qf_cmd_lock);
37408 - atomic_set(&dev->dev_ordered_id, 0);
37409 + atomic_set_unchecked(&dev->dev_ordered_id, 0);
37410
37411 se_dev_set_default_attribs(dev, dev_limits);
37412
37413 @@ -1402,7 +1402,7 @@ static int transport_check_alloc_task_attr(struct se_cmd *cmd)
37414 * Used to determine when ORDERED commands should go from
37415 * Dormant to Active status.
37416 */
37417 - cmd->se_ordered_id = atomic_inc_return(&cmd->se_dev->dev_ordered_id);
37418 + cmd->se_ordered_id = atomic_inc_return_unchecked(&cmd->se_dev->dev_ordered_id);
37419 smp_mb__after_atomic_inc();
37420 pr_debug("Allocated se_ordered_id: %u for Task Attr: 0x%02x on %s\n",
37421 cmd->se_ordered_id, cmd->sam_task_attr,
37422 diff --git a/drivers/tty/cyclades.c b/drivers/tty/cyclades.c
37423 index e61cabd..7617d26 100644
37424 --- a/drivers/tty/cyclades.c
37425 +++ b/drivers/tty/cyclades.c
37426 @@ -1589,10 +1589,10 @@ static int cy_open(struct tty_struct *tty, struct file *filp)
37427 printk(KERN_DEBUG "cyc:cy_open ttyC%d, count = %d\n", info->line,
37428 info->port.count);
37429 #endif
37430 - info->port.count++;
37431 + atomic_inc(&info->port.count);
37432 #ifdef CY_DEBUG_COUNT
37433 printk(KERN_DEBUG "cyc:cy_open (%d): incrementing count to %d\n",
37434 - current->pid, info->port.count);
37435 + current->pid, atomic_read(&info->port.count));
37436 #endif
37437
37438 /*
37439 @@ -3987,7 +3987,7 @@ static int cyclades_proc_show(struct seq_file *m, void *v)
37440 for (j = 0; j < cy_card[i].nports; j++) {
37441 info = &cy_card[i].ports[j];
37442
37443 - if (info->port.count) {
37444 + if (atomic_read(&info->port.count)) {
37445 /* XXX is the ldisc num worth this? */
37446 struct tty_struct *tty;
37447 struct tty_ldisc *ld;
37448 diff --git a/drivers/tty/hvc/hvc_console.c b/drivers/tty/hvc/hvc_console.c
37449 index 2d691eb..be02ebd 100644
37450 --- a/drivers/tty/hvc/hvc_console.c
37451 +++ b/drivers/tty/hvc/hvc_console.c
37452 @@ -315,7 +315,7 @@ static int hvc_open(struct tty_struct *tty, struct file * filp)
37453
37454 spin_lock_irqsave(&hp->port.lock, flags);
37455 /* Check and then increment for fast path open. */
37456 - if (hp->port.count++ > 0) {
37457 + if (atomic_inc_return(&hp->port.count) > 1) {
37458 spin_unlock_irqrestore(&hp->port.lock, flags);
37459 hvc_kick();
37460 return 0;
37461 @@ -366,7 +366,7 @@ static void hvc_close(struct tty_struct *tty, struct file * filp)
37462
37463 spin_lock_irqsave(&hp->port.lock, flags);
37464
37465 - if (--hp->port.count == 0) {
37466 + if (atomic_dec_return(&hp->port.count) == 0) {
37467 spin_unlock_irqrestore(&hp->port.lock, flags);
37468 /* We are done with the tty pointer now. */
37469 tty_port_tty_set(&hp->port, NULL);
37470 @@ -384,9 +384,9 @@ static void hvc_close(struct tty_struct *tty, struct file * filp)
37471 */
37472 tty_wait_until_sent_from_close(tty, HVC_CLOSE_WAIT);
37473 } else {
37474 - if (hp->port.count < 0)
37475 + if (atomic_read(&hp->port.count) < 0)
37476 printk(KERN_ERR "hvc_close %X: oops, count is %d\n",
37477 - hp->vtermno, hp->port.count);
37478 + hp->vtermno, atomic_read(&hp->port.count));
37479 spin_unlock_irqrestore(&hp->port.lock, flags);
37480 }
37481
37482 @@ -412,13 +412,13 @@ static void hvc_hangup(struct tty_struct *tty)
37483 * open->hangup case this can be called after the final close so prevent
37484 * that from happening for now.
37485 */
37486 - if (hp->port.count <= 0) {
37487 + if (atomic_read(&hp->port.count) <= 0) {
37488 spin_unlock_irqrestore(&hp->port.lock, flags);
37489 return;
37490 }
37491
37492 - temp_open_count = hp->port.count;
37493 - hp->port.count = 0;
37494 + temp_open_count = atomic_read(&hp->port.count);
37495 + atomic_set(&hp->port.count, 0);
37496 spin_unlock_irqrestore(&hp->port.lock, flags);
37497 tty_port_tty_set(&hp->port, NULL);
37498
37499 @@ -471,7 +471,7 @@ static int hvc_write(struct tty_struct *tty, const unsigned char *buf, int count
37500 return -EPIPE;
37501
37502 /* FIXME what's this (unprotected) check for? */
37503 - if (hp->port.count <= 0)
37504 + if (atomic_read(&hp->port.count) <= 0)
37505 return -EIO;
37506
37507 spin_lock_irqsave(&hp->lock, flags);
37508 diff --git a/drivers/tty/hvc/hvcs.c b/drivers/tty/hvc/hvcs.c
37509 index d56788c..12d8f85 100644
37510 --- a/drivers/tty/hvc/hvcs.c
37511 +++ b/drivers/tty/hvc/hvcs.c
37512 @@ -83,6 +83,7 @@
37513 #include <asm/hvcserver.h>
37514 #include <asm/uaccess.h>
37515 #include <asm/vio.h>
37516 +#include <asm/local.h>
37517
37518 /*
37519 * 1.3.0 -> 1.3.1 In hvcs_open memset(..,0x00,..) instead of memset(..,0x3F,00).
37520 @@ -416,7 +417,7 @@ static ssize_t hvcs_vterm_state_store(struct device *dev, struct device_attribut
37521
37522 spin_lock_irqsave(&hvcsd->lock, flags);
37523
37524 - if (hvcsd->port.count > 0) {
37525 + if (atomic_read(&hvcsd->port.count) > 0) {
37526 spin_unlock_irqrestore(&hvcsd->lock, flags);
37527 printk(KERN_INFO "HVCS: vterm state unchanged. "
37528 "The hvcs device node is still in use.\n");
37529 @@ -1134,7 +1135,7 @@ static int hvcs_open(struct tty_struct *tty, struct file *filp)
37530 if ((retval = hvcs_partner_connect(hvcsd)))
37531 goto error_release;
37532
37533 - hvcsd->port.count = 1;
37534 + atomic_set(&hvcsd->port.count, 1);
37535 hvcsd->port.tty = tty;
37536 tty->driver_data = hvcsd;
37537
37538 @@ -1168,7 +1169,7 @@ fast_open:
37539
37540 spin_lock_irqsave(&hvcsd->lock, flags);
37541 tty_port_get(&hvcsd->port);
37542 - hvcsd->port.count++;
37543 + atomic_inc(&hvcsd->port.count);
37544 hvcsd->todo_mask |= HVCS_SCHED_READ;
37545 spin_unlock_irqrestore(&hvcsd->lock, flags);
37546
37547 @@ -1212,7 +1213,7 @@ static void hvcs_close(struct tty_struct *tty, struct file *filp)
37548 hvcsd = tty->driver_data;
37549
37550 spin_lock_irqsave(&hvcsd->lock, flags);
37551 - if (--hvcsd->port.count == 0) {
37552 + if (atomic_dec_and_test(&hvcsd->port.count)) {
37553
37554 vio_disable_interrupts(hvcsd->vdev);
37555
37556 @@ -1238,10 +1239,10 @@ static void hvcs_close(struct tty_struct *tty, struct file *filp)
37557 free_irq(irq, hvcsd);
37558 tty_port_put(&hvcsd->port);
37559 return;
37560 - } else if (hvcsd->port.count < 0) {
37561 + } else if (atomic_read(&hvcsd->port.count) < 0) {
37562 printk(KERN_ERR "HVCS: vty-server@%X open_count: %d"
37563 " is missmanaged.\n",
37564 - hvcsd->vdev->unit_address, hvcsd->port.count);
37565 + hvcsd->vdev->unit_address, atomic_read(&hvcsd->port.count));
37566 }
37567
37568 spin_unlock_irqrestore(&hvcsd->lock, flags);
37569 @@ -1257,7 +1258,7 @@ static void hvcs_hangup(struct tty_struct * tty)
37570
37571 spin_lock_irqsave(&hvcsd->lock, flags);
37572 /* Preserve this so that we know how many kref refs to put */
37573 - temp_open_count = hvcsd->port.count;
37574 + temp_open_count = atomic_read(&hvcsd->port.count);
37575
37576 /*
37577 * Don't kref put inside the spinlock because the destruction
37578 @@ -1272,7 +1273,7 @@ static void hvcs_hangup(struct tty_struct * tty)
37579 tty->driver_data = NULL;
37580 hvcsd->port.tty = NULL;
37581
37582 - hvcsd->port.count = 0;
37583 + atomic_set(&hvcsd->port.count, 0);
37584
37585 /* This will drop any buffered data on the floor which is OK in a hangup
37586 * scenario. */
37587 @@ -1343,7 +1344,7 @@ static int hvcs_write(struct tty_struct *tty,
37588 * the middle of a write operation? This is a crummy place to do this
37589 * but we want to keep it all in the spinlock.
37590 */
37591 - if (hvcsd->port.count <= 0) {
37592 + if (atomic_read(&hvcsd->port.count) <= 0) {
37593 spin_unlock_irqrestore(&hvcsd->lock, flags);
37594 return -ENODEV;
37595 }
37596 @@ -1417,7 +1418,7 @@ static int hvcs_write_room(struct tty_struct *tty)
37597 {
37598 struct hvcs_struct *hvcsd = tty->driver_data;
37599
37600 - if (!hvcsd || hvcsd->port.count <= 0)
37601 + if (!hvcsd || atomic_read(&hvcsd->port.count) <= 0)
37602 return 0;
37603
37604 return HVCS_BUFF_LEN - hvcsd->chars_in_buffer;
37605 diff --git a/drivers/tty/ipwireless/tty.c b/drivers/tty/ipwireless/tty.c
37606 index f8b5fa0..4ba9f89 100644
37607 --- a/drivers/tty/ipwireless/tty.c
37608 +++ b/drivers/tty/ipwireless/tty.c
37609 @@ -29,6 +29,7 @@
37610 #include <linux/tty_driver.h>
37611 #include <linux/tty_flip.h>
37612 #include <linux/uaccess.h>
37613 +#include <asm/local.h>
37614
37615 #include "tty.h"
37616 #include "network.h"
37617 @@ -99,10 +100,10 @@ static int ipw_open(struct tty_struct *linux_tty, struct file *filp)
37618 mutex_unlock(&tty->ipw_tty_mutex);
37619 return -ENODEV;
37620 }
37621 - if (tty->port.count == 0)
37622 + if (atomic_read(&tty->port.count) == 0)
37623 tty->tx_bytes_queued = 0;
37624
37625 - tty->port.count++;
37626 + atomic_inc(&tty->port.count);
37627
37628 tty->port.tty = linux_tty;
37629 linux_tty->driver_data = tty;
37630 @@ -118,9 +119,7 @@ static int ipw_open(struct tty_struct *linux_tty, struct file *filp)
37631
37632 static void do_ipw_close(struct ipw_tty *tty)
37633 {
37634 - tty->port.count--;
37635 -
37636 - if (tty->port.count == 0) {
37637 + if (atomic_dec_return(&tty->port.count) == 0) {
37638 struct tty_struct *linux_tty = tty->port.tty;
37639
37640 if (linux_tty != NULL) {
37641 @@ -141,7 +140,7 @@ static void ipw_hangup(struct tty_struct *linux_tty)
37642 return;
37643
37644 mutex_lock(&tty->ipw_tty_mutex);
37645 - if (tty->port.count == 0) {
37646 + if (atomic_read(&tty->port.count) == 0) {
37647 mutex_unlock(&tty->ipw_tty_mutex);
37648 return;
37649 }
37650 @@ -170,7 +169,7 @@ void ipwireless_tty_received(struct ipw_tty *tty, unsigned char *data,
37651 return;
37652 }
37653
37654 - if (!tty->port.count) {
37655 + if (!atomic_read(&tty->port.count)) {
37656 mutex_unlock(&tty->ipw_tty_mutex);
37657 return;
37658 }
37659 @@ -212,7 +211,7 @@ static int ipw_write(struct tty_struct *linux_tty,
37660 return -ENODEV;
37661
37662 mutex_lock(&tty->ipw_tty_mutex);
37663 - if (!tty->port.count) {
37664 + if (!atomic_read(&tty->port.count)) {
37665 mutex_unlock(&tty->ipw_tty_mutex);
37666 return -EINVAL;
37667 }
37668 @@ -252,7 +251,7 @@ static int ipw_write_room(struct tty_struct *linux_tty)
37669 if (!tty)
37670 return -ENODEV;
37671
37672 - if (!tty->port.count)
37673 + if (!atomic_read(&tty->port.count))
37674 return -EINVAL;
37675
37676 room = IPWIRELESS_TX_QUEUE_SIZE - tty->tx_bytes_queued;
37677 @@ -294,7 +293,7 @@ static int ipw_chars_in_buffer(struct tty_struct *linux_tty)
37678 if (!tty)
37679 return 0;
37680
37681 - if (!tty->port.count)
37682 + if (!atomic_read(&tty->port.count))
37683 return 0;
37684
37685 return tty->tx_bytes_queued;
37686 @@ -375,7 +374,7 @@ static int ipw_tiocmget(struct tty_struct *linux_tty)
37687 if (!tty)
37688 return -ENODEV;
37689
37690 - if (!tty->port.count)
37691 + if (!atomic_read(&tty->port.count))
37692 return -EINVAL;
37693
37694 return get_control_lines(tty);
37695 @@ -391,7 +390,7 @@ ipw_tiocmset(struct tty_struct *linux_tty,
37696 if (!tty)
37697 return -ENODEV;
37698
37699 - if (!tty->port.count)
37700 + if (!atomic_read(&tty->port.count))
37701 return -EINVAL;
37702
37703 return set_control_lines(tty, set, clear);
37704 @@ -405,7 +404,7 @@ static int ipw_ioctl(struct tty_struct *linux_tty,
37705 if (!tty)
37706 return -ENODEV;
37707
37708 - if (!tty->port.count)
37709 + if (!atomic_read(&tty->port.count))
37710 return -EINVAL;
37711
37712 /* FIXME: Exactly how is the tty object locked here .. */
37713 @@ -561,7 +560,7 @@ void ipwireless_tty_free(struct ipw_tty *tty)
37714 * are gone */
37715 mutex_lock(&ttyj->ipw_tty_mutex);
37716 }
37717 - while (ttyj->port.count)
37718 + while (atomic_read(&ttyj->port.count))
37719 do_ipw_close(ttyj);
37720 ipwireless_disassociate_network_ttys(network,
37721 ttyj->channel_idx);
37722 diff --git a/drivers/tty/moxa.c b/drivers/tty/moxa.c
37723 index 324467d..504cc25 100644
37724 --- a/drivers/tty/moxa.c
37725 +++ b/drivers/tty/moxa.c
37726 @@ -1172,7 +1172,7 @@ static int moxa_open(struct tty_struct *tty, struct file *filp)
37727 }
37728
37729 ch = &brd->ports[port % MAX_PORTS_PER_BOARD];
37730 - ch->port.count++;
37731 + atomic_inc(&ch->port.count);
37732 tty->driver_data = ch;
37733 tty_port_tty_set(&ch->port, tty);
37734 mutex_lock(&ch->port.mutex);
37735 diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c
37736 index c43b683..4dab83e 100644
37737 --- a/drivers/tty/n_gsm.c
37738 +++ b/drivers/tty/n_gsm.c
37739 @@ -1629,7 +1629,7 @@ static struct gsm_dlci *gsm_dlci_alloc(struct gsm_mux *gsm, int addr)
37740 kref_init(&dlci->ref);
37741 mutex_init(&dlci->mutex);
37742 dlci->fifo = &dlci->_fifo;
37743 - if (kfifo_alloc(&dlci->_fifo, 4096, GFP_KERNEL) < 0) {
37744 + if (kfifo_alloc(&dlci->_fifo, 4096, GFP_KERNEL)) {
37745 kfree(dlci);
37746 return NULL;
37747 }
37748 @@ -2895,7 +2895,7 @@ static int gsmtty_open(struct tty_struct *tty, struct file *filp)
37749 if (dlci == NULL)
37750 return -ENOMEM;
37751 port = &dlci->port;
37752 - port->count++;
37753 + atomic_inc(&port->count);
37754 tty->driver_data = dlci;
37755 dlci_get(dlci);
37756 dlci_get(dlci->gsm->dlci[0]);
37757 diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c
37758 index ee1c268..0e97caf 100644
37759 --- a/drivers/tty/n_tty.c
37760 +++ b/drivers/tty/n_tty.c
37761 @@ -2123,6 +2123,7 @@ void n_tty_inherit_ops(struct tty_ldisc_ops *ops)
37762 {
37763 *ops = tty_ldisc_N_TTY;
37764 ops->owner = NULL;
37765 - ops->refcount = ops->flags = 0;
37766 + atomic_set(&ops->refcount, 0);
37767 + ops->flags = 0;
37768 }
37769 EXPORT_SYMBOL_GPL(n_tty_inherit_ops);
37770 diff --git a/drivers/tty/pty.c b/drivers/tty/pty.c
37771 index 5505ffc..7affff9 100644
37772 --- a/drivers/tty/pty.c
37773 +++ b/drivers/tty/pty.c
37774 @@ -718,8 +718,10 @@ static void __init unix98_pty_init(void)
37775 panic("Couldn't register Unix98 pts driver");
37776
37777 /* Now create the /dev/ptmx special device */
37778 + pax_open_kernel();
37779 tty_default_fops(&ptmx_fops);
37780 - ptmx_fops.open = ptmx_open;
37781 + *(void **)&ptmx_fops.open = ptmx_open;
37782 + pax_close_kernel();
37783
37784 cdev_init(&ptmx_cdev, &ptmx_fops);
37785 if (cdev_add(&ptmx_cdev, MKDEV(TTYAUX_MAJOR, 2), 1) ||
37786 diff --git a/drivers/tty/rocket.c b/drivers/tty/rocket.c
37787 index 777d5f9..56d67ca 100644
37788 --- a/drivers/tty/rocket.c
37789 +++ b/drivers/tty/rocket.c
37790 @@ -924,7 +924,7 @@ static int rp_open(struct tty_struct *tty, struct file *filp)
37791 tty->driver_data = info;
37792 tty_port_tty_set(port, tty);
37793
37794 - if (port->count++ == 0) {
37795 + if (atomic_inc_return(&port->count) == 1) {
37796 atomic_inc(&rp_num_ports_open);
37797
37798 #ifdef ROCKET_DEBUG_OPEN
37799 @@ -933,7 +933,7 @@ static int rp_open(struct tty_struct *tty, struct file *filp)
37800 #endif
37801 }
37802 #ifdef ROCKET_DEBUG_OPEN
37803 - printk(KERN_INFO "rp_open ttyR%d, count=%d\n", info->line, info->port.count);
37804 + printk(KERN_INFO "rp_open ttyR%d, count=%d\n", info->line, atomic-read(&info->port.count));
37805 #endif
37806
37807 /*
37808 @@ -1528,7 +1528,7 @@ static void rp_hangup(struct tty_struct *tty)
37809 spin_unlock_irqrestore(&info->port.lock, flags);
37810 return;
37811 }
37812 - if (info->port.count)
37813 + if (atomic_read(&info->port.count))
37814 atomic_dec(&rp_num_ports_open);
37815 clear_bit((info->aiop * 8) + info->chan, (void *) &xmit_flags[info->board]);
37816 spin_unlock_irqrestore(&info->port.lock, flags);
37817 diff --git a/drivers/tty/serial/kgdboc.c b/drivers/tty/serial/kgdboc.c
37818 index 2b42a01..32a2ed3 100644
37819 --- a/drivers/tty/serial/kgdboc.c
37820 +++ b/drivers/tty/serial/kgdboc.c
37821 @@ -24,8 +24,9 @@
37822 #define MAX_CONFIG_LEN 40
37823
37824 static struct kgdb_io kgdboc_io_ops;
37825 +static struct kgdb_io kgdboc_io_ops_console;
37826
37827 -/* -1 = init not run yet, 0 = unconfigured, 1 = configured. */
37828 +/* -1 = init not run yet, 0 = unconfigured, 1/2 = configured. */
37829 static int configured = -1;
37830
37831 static char config[MAX_CONFIG_LEN];
37832 @@ -148,6 +149,8 @@ static void cleanup_kgdboc(void)
37833 kgdboc_unregister_kbd();
37834 if (configured == 1)
37835 kgdb_unregister_io_module(&kgdboc_io_ops);
37836 + else if (configured == 2)
37837 + kgdb_unregister_io_module(&kgdboc_io_ops_console);
37838 }
37839
37840 static int configure_kgdboc(void)
37841 @@ -157,13 +160,13 @@ static int configure_kgdboc(void)
37842 int err;
37843 char *cptr = config;
37844 struct console *cons;
37845 + int is_console = 0;
37846
37847 err = kgdboc_option_setup(config);
37848 if (err || !strlen(config) || isspace(config[0]))
37849 goto noconfig;
37850
37851 err = -ENODEV;
37852 - kgdboc_io_ops.is_console = 0;
37853 kgdb_tty_driver = NULL;
37854
37855 kgdboc_use_kms = 0;
37856 @@ -184,7 +187,7 @@ static int configure_kgdboc(void)
37857 int idx;
37858 if (cons->device && cons->device(cons, &idx) == p &&
37859 idx == tty_line) {
37860 - kgdboc_io_ops.is_console = 1;
37861 + is_console = 1;
37862 break;
37863 }
37864 cons = cons->next;
37865 @@ -194,12 +197,16 @@ static int configure_kgdboc(void)
37866 kgdb_tty_line = tty_line;
37867
37868 do_register:
37869 - err = kgdb_register_io_module(&kgdboc_io_ops);
37870 + if (is_console) {
37871 + err = kgdb_register_io_module(&kgdboc_io_ops_console);
37872 + configured = 2;
37873 + } else {
37874 + err = kgdb_register_io_module(&kgdboc_io_ops);
37875 + configured = 1;
37876 + }
37877 if (err)
37878 goto noconfig;
37879
37880 - configured = 1;
37881 -
37882 return 0;
37883
37884 noconfig:
37885 @@ -213,7 +220,7 @@ noconfig:
37886 static int __init init_kgdboc(void)
37887 {
37888 /* Already configured? */
37889 - if (configured == 1)
37890 + if (configured >= 1)
37891 return 0;
37892
37893 return configure_kgdboc();
37894 @@ -262,7 +269,7 @@ static int param_set_kgdboc_var(const char *kmessage, struct kernel_param *kp)
37895 if (config[len - 1] == '\n')
37896 config[len - 1] = '\0';
37897
37898 - if (configured == 1)
37899 + if (configured >= 1)
37900 cleanup_kgdboc();
37901
37902 /* Go and configure with the new params. */
37903 @@ -302,6 +309,15 @@ static struct kgdb_io kgdboc_io_ops = {
37904 .post_exception = kgdboc_post_exp_handler,
37905 };
37906
37907 +static struct kgdb_io kgdboc_io_ops_console = {
37908 + .name = "kgdboc",
37909 + .read_char = kgdboc_get_char,
37910 + .write_char = kgdboc_put_char,
37911 + .pre_exception = kgdboc_pre_exp_handler,
37912 + .post_exception = kgdboc_post_exp_handler,
37913 + .is_console = 1
37914 +};
37915 +
37916 #ifdef CONFIG_KGDB_SERIAL_CONSOLE
37917 /* This is only available if kgdboc is a built in for early debugging */
37918 static int __init kgdboc_early_init(char *opt)
37919 diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c
37920 index 246b823..9e0db76 100644
37921 --- a/drivers/tty/serial/serial_core.c
37922 +++ b/drivers/tty/serial/serial_core.c
37923 @@ -1392,7 +1392,7 @@ static void uart_hangup(struct tty_struct *tty)
37924 uart_flush_buffer(tty);
37925 uart_shutdown(tty, state);
37926 spin_lock_irqsave(&port->lock, flags);
37927 - port->count = 0;
37928 + atomic_set(&port->count, 0);
37929 clear_bit(ASYNCB_NORMAL_ACTIVE, &port->flags);
37930 spin_unlock_irqrestore(&port->lock, flags);
37931 tty_port_tty_set(port, NULL);
37932 @@ -1488,7 +1488,7 @@ static int uart_open(struct tty_struct *tty, struct file *filp)
37933 goto end;
37934 }
37935
37936 - port->count++;
37937 + atomic_inc(&port->count);
37938 if (!state->uart_port || state->uart_port->flags & UPF_DEAD) {
37939 retval = -ENXIO;
37940 goto err_dec_count;
37941 @@ -1515,7 +1515,7 @@ static int uart_open(struct tty_struct *tty, struct file *filp)
37942 /*
37943 * Make sure the device is in D0 state.
37944 */
37945 - if (port->count == 1)
37946 + if (atomic_read(&port->count) == 1)
37947 uart_change_pm(state, 0);
37948
37949 /*
37950 @@ -1533,7 +1533,7 @@ static int uart_open(struct tty_struct *tty, struct file *filp)
37951 end:
37952 return retval;
37953 err_dec_count:
37954 - port->count--;
37955 + atomic_inc(&port->count);
37956 mutex_unlock(&port->mutex);
37957 goto end;
37958 }
37959 diff --git a/drivers/tty/synclink.c b/drivers/tty/synclink.c
37960 index 593d40a..bdc61f3 100644
37961 --- a/drivers/tty/synclink.c
37962 +++ b/drivers/tty/synclink.c
37963 @@ -3095,7 +3095,7 @@ static void mgsl_close(struct tty_struct *tty, struct file * filp)
37964
37965 if (debug_level >= DEBUG_LEVEL_INFO)
37966 printk("%s(%d):mgsl_close(%s) entry, count=%d\n",
37967 - __FILE__,__LINE__, info->device_name, info->port.count);
37968 + __FILE__,__LINE__, info->device_name, atomic_read(&info->port.count));
37969
37970 if (tty_port_close_start(&info->port, tty, filp) == 0)
37971 goto cleanup;
37972 @@ -3113,7 +3113,7 @@ static void mgsl_close(struct tty_struct *tty, struct file * filp)
37973 cleanup:
37974 if (debug_level >= DEBUG_LEVEL_INFO)
37975 printk("%s(%d):mgsl_close(%s) exit, count=%d\n", __FILE__,__LINE__,
37976 - tty->driver->name, info->port.count);
37977 + tty->driver->name, atomic_read(&info->port.count));
37978
37979 } /* end of mgsl_close() */
37980
37981 @@ -3212,8 +3212,8 @@ static void mgsl_hangup(struct tty_struct *tty)
37982
37983 mgsl_flush_buffer(tty);
37984 shutdown(info);
37985 -
37986 - info->port.count = 0;
37987 +
37988 + atomic_set(&info->port.count, 0);
37989 info->port.flags &= ~ASYNC_NORMAL_ACTIVE;
37990 info->port.tty = NULL;
37991
37992 @@ -3302,12 +3302,12 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
37993
37994 if (debug_level >= DEBUG_LEVEL_INFO)
37995 printk("%s(%d):block_til_ready before block on %s count=%d\n",
37996 - __FILE__,__LINE__, tty->driver->name, port->count );
37997 + __FILE__,__LINE__, tty->driver->name, atomic_read(&port->count));
37998
37999 spin_lock_irqsave(&info->irq_spinlock, flags);
38000 if (!tty_hung_up_p(filp)) {
38001 extra_count = true;
38002 - port->count--;
38003 + atomic_dec(&port->count);
38004 }
38005 spin_unlock_irqrestore(&info->irq_spinlock, flags);
38006 port->blocked_open++;
38007 @@ -3336,7 +3336,7 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
38008
38009 if (debug_level >= DEBUG_LEVEL_INFO)
38010 printk("%s(%d):block_til_ready blocking on %s count=%d\n",
38011 - __FILE__,__LINE__, tty->driver->name, port->count );
38012 + __FILE__,__LINE__, tty->driver->name, atomic_read(&port->count));
38013
38014 tty_unlock();
38015 schedule();
38016 @@ -3348,12 +3348,12 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
38017
38018 /* FIXME: Racy on hangup during close wait */
38019 if (extra_count)
38020 - port->count++;
38021 + atomic_inc(&port->count);
38022 port->blocked_open--;
38023
38024 if (debug_level >= DEBUG_LEVEL_INFO)
38025 printk("%s(%d):block_til_ready after blocking on %s count=%d\n",
38026 - __FILE__,__LINE__, tty->driver->name, port->count );
38027 + __FILE__,__LINE__, tty->driver->name, atomic_read(&port->count));
38028
38029 if (!retval)
38030 port->flags |= ASYNC_NORMAL_ACTIVE;
38031 @@ -3398,7 +3398,7 @@ static int mgsl_open(struct tty_struct *tty, struct file * filp)
38032
38033 if (debug_level >= DEBUG_LEVEL_INFO)
38034 printk("%s(%d):mgsl_open(%s), old ref count = %d\n",
38035 - __FILE__,__LINE__,tty->driver->name, info->port.count);
38036 + __FILE__,__LINE__,tty->driver->name, atomic_read(&info->port.count));
38037
38038 /* If port is closing, signal caller to try again */
38039 if (tty_hung_up_p(filp) || info->port.flags & ASYNC_CLOSING){
38040 @@ -3417,10 +3417,10 @@ static int mgsl_open(struct tty_struct *tty, struct file * filp)
38041 spin_unlock_irqrestore(&info->netlock, flags);
38042 goto cleanup;
38043 }
38044 - info->port.count++;
38045 + atomic_inc(&info->port.count);
38046 spin_unlock_irqrestore(&info->netlock, flags);
38047
38048 - if (info->port.count == 1) {
38049 + if (atomic_read(&info->port.count) == 1) {
38050 /* 1st open on this device, init hardware */
38051 retval = startup(info);
38052 if (retval < 0)
38053 @@ -3444,8 +3444,8 @@ cleanup:
38054 if (retval) {
38055 if (tty->count == 1)
38056 info->port.tty = NULL; /* tty layer will release tty struct */
38057 - if(info->port.count)
38058 - info->port.count--;
38059 + if (atomic_read(&info->port.count))
38060 + atomic_dec(&info->port.count);
38061 }
38062
38063 return retval;
38064 @@ -7653,7 +7653,7 @@ static int hdlcdev_attach(struct net_device *dev, unsigned short encoding,
38065 unsigned short new_crctype;
38066
38067 /* return error if TTY interface open */
38068 - if (info->port.count)
38069 + if (atomic_read(&info->port.count))
38070 return -EBUSY;
38071
38072 switch (encoding)
38073 @@ -7748,7 +7748,7 @@ static int hdlcdev_open(struct net_device *dev)
38074
38075 /* arbitrate between network and tty opens */
38076 spin_lock_irqsave(&info->netlock, flags);
38077 - if (info->port.count != 0 || info->netcount != 0) {
38078 + if (atomic_read(&info->port.count) != 0 || info->netcount != 0) {
38079 printk(KERN_WARNING "%s: hdlc_open returning busy\n", dev->name);
38080 spin_unlock_irqrestore(&info->netlock, flags);
38081 return -EBUSY;
38082 @@ -7834,7 +7834,7 @@ static int hdlcdev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
38083 printk("%s:hdlcdev_ioctl(%s)\n",__FILE__,dev->name);
38084
38085 /* return error if TTY interface open */
38086 - if (info->port.count)
38087 + if (atomic_read(&info->port.count))
38088 return -EBUSY;
38089
38090 if (cmd != SIOCWANDEV)
38091 diff --git a/drivers/tty/synclink_gt.c b/drivers/tty/synclink_gt.c
38092 index aa1debf..9297a16 100644
38093 --- a/drivers/tty/synclink_gt.c
38094 +++ b/drivers/tty/synclink_gt.c
38095 @@ -671,7 +671,7 @@ static int open(struct tty_struct *tty, struct file *filp)
38096 tty->driver_data = info;
38097 info->port.tty = tty;
38098
38099 - DBGINFO(("%s open, old ref count = %d\n", info->device_name, info->port.count));
38100 + DBGINFO(("%s open, old ref count = %d\n", info->device_name, atomic_read(&info->port.count)));
38101
38102 /* If port is closing, signal caller to try again */
38103 if (tty_hung_up_p(filp) || info->port.flags & ASYNC_CLOSING){
38104 @@ -692,10 +692,10 @@ static int open(struct tty_struct *tty, struct file *filp)
38105 mutex_unlock(&info->port.mutex);
38106 goto cleanup;
38107 }
38108 - info->port.count++;
38109 + atomic_inc(&info->port.count);
38110 spin_unlock_irqrestore(&info->netlock, flags);
38111
38112 - if (info->port.count == 1) {
38113 + if (atomic_read(&info->port.count) == 1) {
38114 /* 1st open on this device, init hardware */
38115 retval = startup(info);
38116 if (retval < 0) {
38117 @@ -716,8 +716,8 @@ cleanup:
38118 if (retval) {
38119 if (tty->count == 1)
38120 info->port.tty = NULL; /* tty layer will release tty struct */
38121 - if(info->port.count)
38122 - info->port.count--;
38123 + if(atomic_read(&info->port.count))
38124 + atomic_dec(&info->port.count);
38125 }
38126
38127 DBGINFO(("%s open rc=%d\n", info->device_name, retval));
38128 @@ -730,7 +730,7 @@ static void close(struct tty_struct *tty, struct file *filp)
38129
38130 if (sanity_check(info, tty->name, "close"))
38131 return;
38132 - DBGINFO(("%s close entry, count=%d\n", info->device_name, info->port.count));
38133 + DBGINFO(("%s close entry, count=%d\n", info->device_name, atomic_read(&info->port.count)));
38134
38135 if (tty_port_close_start(&info->port, tty, filp) == 0)
38136 goto cleanup;
38137 @@ -747,7 +747,7 @@ static void close(struct tty_struct *tty, struct file *filp)
38138 tty_port_close_end(&info->port, tty);
38139 info->port.tty = NULL;
38140 cleanup:
38141 - DBGINFO(("%s close exit, count=%d\n", tty->driver->name, info->port.count));
38142 + DBGINFO(("%s close exit, count=%d\n", tty->driver->name, atomic_read(&info->port.count)));
38143 }
38144
38145 static void hangup(struct tty_struct *tty)
38146 @@ -765,7 +765,7 @@ static void hangup(struct tty_struct *tty)
38147 shutdown(info);
38148
38149 spin_lock_irqsave(&info->port.lock, flags);
38150 - info->port.count = 0;
38151 + atomic_set(&info->port.count, 0);
38152 info->port.flags &= ~ASYNC_NORMAL_ACTIVE;
38153 info->port.tty = NULL;
38154 spin_unlock_irqrestore(&info->port.lock, flags);
38155 @@ -1450,7 +1450,7 @@ static int hdlcdev_attach(struct net_device *dev, unsigned short encoding,
38156 unsigned short new_crctype;
38157
38158 /* return error if TTY interface open */
38159 - if (info->port.count)
38160 + if (atomic_read(&info->port.count))
38161 return -EBUSY;
38162
38163 DBGINFO(("%s hdlcdev_attach\n", info->device_name));
38164 @@ -1545,7 +1545,7 @@ static int hdlcdev_open(struct net_device *dev)
38165
38166 /* arbitrate between network and tty opens */
38167 spin_lock_irqsave(&info->netlock, flags);
38168 - if (info->port.count != 0 || info->netcount != 0) {
38169 + if (atomic_read(&info->port.count) != 0 || info->netcount != 0) {
38170 DBGINFO(("%s hdlc_open busy\n", dev->name));
38171 spin_unlock_irqrestore(&info->netlock, flags);
38172 return -EBUSY;
38173 @@ -1630,7 +1630,7 @@ static int hdlcdev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
38174 DBGINFO(("%s hdlcdev_ioctl\n", dev->name));
38175
38176 /* return error if TTY interface open */
38177 - if (info->port.count)
38178 + if (atomic_read(&info->port.count))
38179 return -EBUSY;
38180
38181 if (cmd != SIOCWANDEV)
38182 @@ -2419,7 +2419,7 @@ static irqreturn_t slgt_interrupt(int dummy, void *dev_id)
38183 if (port == NULL)
38184 continue;
38185 spin_lock(&port->lock);
38186 - if ((port->port.count || port->netcount) &&
38187 + if ((atomic_read(&port->port.count) || port->netcount) &&
38188 port->pending_bh && !port->bh_running &&
38189 !port->bh_requested) {
38190 DBGISR(("%s bh queued\n", port->device_name));
38191 @@ -3308,7 +3308,7 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
38192 spin_lock_irqsave(&info->lock, flags);
38193 if (!tty_hung_up_p(filp)) {
38194 extra_count = true;
38195 - port->count--;
38196 + atomic_dec(&port->count);
38197 }
38198 spin_unlock_irqrestore(&info->lock, flags);
38199 port->blocked_open++;
38200 @@ -3345,7 +3345,7 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
38201 remove_wait_queue(&port->open_wait, &wait);
38202
38203 if (extra_count)
38204 - port->count++;
38205 + atomic_inc(&port->count);
38206 port->blocked_open--;
38207
38208 if (!retval)
38209 diff --git a/drivers/tty/synclinkmp.c b/drivers/tty/synclinkmp.c
38210 index a3dddc1..8905ab2 100644
38211 --- a/drivers/tty/synclinkmp.c
38212 +++ b/drivers/tty/synclinkmp.c
38213 @@ -742,7 +742,7 @@ static int open(struct tty_struct *tty, struct file *filp)
38214
38215 if (debug_level >= DEBUG_LEVEL_INFO)
38216 printk("%s(%d):%s open(), old ref count = %d\n",
38217 - __FILE__,__LINE__,tty->driver->name, info->port.count);
38218 + __FILE__,__LINE__,tty->driver->name, atomic_read(&info->port.count));
38219
38220 /* If port is closing, signal caller to try again */
38221 if (tty_hung_up_p(filp) || info->port.flags & ASYNC_CLOSING){
38222 @@ -761,10 +761,10 @@ static int open(struct tty_struct *tty, struct file *filp)
38223 spin_unlock_irqrestore(&info->netlock, flags);
38224 goto cleanup;
38225 }
38226 - info->port.count++;
38227 + atomic_inc(&info->port.count);
38228 spin_unlock_irqrestore(&info->netlock, flags);
38229
38230 - if (info->port.count == 1) {
38231 + if (atomic_read(&info->port.count) == 1) {
38232 /* 1st open on this device, init hardware */
38233 retval = startup(info);
38234 if (retval < 0)
38235 @@ -788,8 +788,8 @@ cleanup:
38236 if (retval) {
38237 if (tty->count == 1)
38238 info->port.tty = NULL; /* tty layer will release tty struct */
38239 - if(info->port.count)
38240 - info->port.count--;
38241 + if(atomic_read(&info->port.count))
38242 + atomic_dec(&info->port.count);
38243 }
38244
38245 return retval;
38246 @@ -807,7 +807,7 @@ static void close(struct tty_struct *tty, struct file *filp)
38247
38248 if (debug_level >= DEBUG_LEVEL_INFO)
38249 printk("%s(%d):%s close() entry, count=%d\n",
38250 - __FILE__,__LINE__, info->device_name, info->port.count);
38251 + __FILE__,__LINE__, info->device_name, atomic_read(&info->port.count));
38252
38253 if (tty_port_close_start(&info->port, tty, filp) == 0)
38254 goto cleanup;
38255 @@ -826,7 +826,7 @@ static void close(struct tty_struct *tty, struct file *filp)
38256 cleanup:
38257 if (debug_level >= DEBUG_LEVEL_INFO)
38258 printk("%s(%d):%s close() exit, count=%d\n", __FILE__,__LINE__,
38259 - tty->driver->name, info->port.count);
38260 + tty->driver->name, atomic_read(&info->port.count));
38261 }
38262
38263 /* Called by tty_hangup() when a hangup is signaled.
38264 @@ -849,7 +849,7 @@ static void hangup(struct tty_struct *tty)
38265 shutdown(info);
38266
38267 spin_lock_irqsave(&info->port.lock, flags);
38268 - info->port.count = 0;
38269 + atomic_set(&info->port.count, 0);
38270 info->port.flags &= ~ASYNC_NORMAL_ACTIVE;
38271 info->port.tty = NULL;
38272 spin_unlock_irqrestore(&info->port.lock, flags);
38273 @@ -1557,7 +1557,7 @@ static int hdlcdev_attach(struct net_device *dev, unsigned short encoding,
38274 unsigned short new_crctype;
38275
38276 /* return error if TTY interface open */
38277 - if (info->port.count)
38278 + if (atomic_read(&info->port.count))
38279 return -EBUSY;
38280
38281 switch (encoding)
38282 @@ -1652,7 +1652,7 @@ static int hdlcdev_open(struct net_device *dev)
38283
38284 /* arbitrate between network and tty opens */
38285 spin_lock_irqsave(&info->netlock, flags);
38286 - if (info->port.count != 0 || info->netcount != 0) {
38287 + if (atomic_read(&info->port.count) != 0 || info->netcount != 0) {
38288 printk(KERN_WARNING "%s: hdlc_open returning busy\n", dev->name);
38289 spin_unlock_irqrestore(&info->netlock, flags);
38290 return -EBUSY;
38291 @@ -1738,7 +1738,7 @@ static int hdlcdev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
38292 printk("%s:hdlcdev_ioctl(%s)\n",__FILE__,dev->name);
38293
38294 /* return error if TTY interface open */
38295 - if (info->port.count)
38296 + if (atomic_read(&info->port.count))
38297 return -EBUSY;
38298
38299 if (cmd != SIOCWANDEV)
38300 @@ -2623,7 +2623,7 @@ static irqreturn_t synclinkmp_interrupt(int dummy, void *dev_id)
38301 * do not request bottom half processing if the
38302 * device is not open in a normal mode.
38303 */
38304 - if ( port && (port->port.count || port->netcount) &&
38305 + if ( port && (atomic_read(&port->port.count) || port->netcount) &&
38306 port->pending_bh && !port->bh_running &&
38307 !port->bh_requested ) {
38308 if ( debug_level >= DEBUG_LEVEL_ISR )
38309 @@ -3321,12 +3321,12 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
38310
38311 if (debug_level >= DEBUG_LEVEL_INFO)
38312 printk("%s(%d):%s block_til_ready() before block, count=%d\n",
38313 - __FILE__,__LINE__, tty->driver->name, port->count );
38314 + __FILE__,__LINE__, tty->driver->name, atomic_read(&port->count));
38315
38316 spin_lock_irqsave(&info->lock, flags);
38317 if (!tty_hung_up_p(filp)) {
38318 extra_count = true;
38319 - port->count--;
38320 + atomic_dec(&port->count);
38321 }
38322 spin_unlock_irqrestore(&info->lock, flags);
38323 port->blocked_open++;
38324 @@ -3355,7 +3355,7 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
38325
38326 if (debug_level >= DEBUG_LEVEL_INFO)
38327 printk("%s(%d):%s block_til_ready() count=%d\n",
38328 - __FILE__,__LINE__, tty->driver->name, port->count );
38329 + __FILE__,__LINE__, tty->driver->name, atomic_read(&port->count));
38330
38331 tty_unlock();
38332 schedule();
38333 @@ -3366,12 +3366,12 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
38334 remove_wait_queue(&port->open_wait, &wait);
38335
38336 if (extra_count)
38337 - port->count++;
38338 + atomic_inc(&port->count);
38339 port->blocked_open--;
38340
38341 if (debug_level >= DEBUG_LEVEL_INFO)
38342 printk("%s(%d):%s block_til_ready() after, count=%d\n",
38343 - __FILE__,__LINE__, tty->driver->name, port->count );
38344 + __FILE__,__LINE__, tty->driver->name, atomic_read(&port->count));
38345
38346 if (!retval)
38347 port->flags |= ASYNC_NORMAL_ACTIVE;
38348 diff --git a/drivers/tty/sysrq.c b/drivers/tty/sysrq.c
38349 index 05728894..b9d44c6 100644
38350 --- a/drivers/tty/sysrq.c
38351 +++ b/drivers/tty/sysrq.c
38352 @@ -865,7 +865,7 @@ EXPORT_SYMBOL(unregister_sysrq_key);
38353 static ssize_t write_sysrq_trigger(struct file *file, const char __user *buf,
38354 size_t count, loff_t *ppos)
38355 {
38356 - if (count) {
38357 + if (count && capable(CAP_SYS_ADMIN)) {
38358 char c;
38359
38360 if (get_user(c, buf))
38361 diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
38362 index b425c79..08a3f06 100644
38363 --- a/drivers/tty/tty_io.c
38364 +++ b/drivers/tty/tty_io.c
38365 @@ -3283,7 +3283,7 @@ EXPORT_SYMBOL_GPL(get_current_tty);
38366
38367 void tty_default_fops(struct file_operations *fops)
38368 {
38369 - *fops = tty_fops;
38370 + memcpy((void *)fops, &tty_fops, sizeof(tty_fops));
38371 }
38372
38373 /*
38374 diff --git a/drivers/tty/tty_ldisc.c b/drivers/tty/tty_ldisc.c
38375 index 9911eb6..5abe0e1 100644
38376 --- a/drivers/tty/tty_ldisc.c
38377 +++ b/drivers/tty/tty_ldisc.c
38378 @@ -56,7 +56,7 @@ static void put_ldisc(struct tty_ldisc *ld)
38379 if (atomic_dec_and_lock(&ld->users, &tty_ldisc_lock)) {
38380 struct tty_ldisc_ops *ldo = ld->ops;
38381
38382 - ldo->refcount--;
38383 + atomic_dec(&ldo->refcount);
38384 module_put(ldo->owner);
38385 spin_unlock_irqrestore(&tty_ldisc_lock, flags);
38386
38387 @@ -91,7 +91,7 @@ int tty_register_ldisc(int disc, struct tty_ldisc_ops *new_ldisc)
38388 spin_lock_irqsave(&tty_ldisc_lock, flags);
38389 tty_ldiscs[disc] = new_ldisc;
38390 new_ldisc->num = disc;
38391 - new_ldisc->refcount = 0;
38392 + atomic_set(&new_ldisc->refcount, 0);
38393 spin_unlock_irqrestore(&tty_ldisc_lock, flags);
38394
38395 return ret;
38396 @@ -119,7 +119,7 @@ int tty_unregister_ldisc(int disc)
38397 return -EINVAL;
38398
38399 spin_lock_irqsave(&tty_ldisc_lock, flags);
38400 - if (tty_ldiscs[disc]->refcount)
38401 + if (atomic_read(&tty_ldiscs[disc]->refcount))
38402 ret = -EBUSY;
38403 else
38404 tty_ldiscs[disc] = NULL;
38405 @@ -140,7 +140,7 @@ static struct tty_ldisc_ops *get_ldops(int disc)
38406 if (ldops) {
38407 ret = ERR_PTR(-EAGAIN);
38408 if (try_module_get(ldops->owner)) {
38409 - ldops->refcount++;
38410 + atomic_inc(&ldops->refcount);
38411 ret = ldops;
38412 }
38413 }
38414 @@ -153,7 +153,7 @@ static void put_ldops(struct tty_ldisc_ops *ldops)
38415 unsigned long flags;
38416
38417 spin_lock_irqsave(&tty_ldisc_lock, flags);
38418 - ldops->refcount--;
38419 + atomic_dec(&ldops->refcount);
38420 module_put(ldops->owner);
38421 spin_unlock_irqrestore(&tty_ldisc_lock, flags);
38422 }
38423 diff --git a/drivers/tty/tty_port.c b/drivers/tty/tty_port.c
38424 index bf6e238..d401c04 100644
38425 --- a/drivers/tty/tty_port.c
38426 +++ b/drivers/tty/tty_port.c
38427 @@ -138,7 +138,7 @@ void tty_port_hangup(struct tty_port *port)
38428 unsigned long flags;
38429
38430 spin_lock_irqsave(&port->lock, flags);
38431 - port->count = 0;
38432 + atomic_set(&port->count, 0);
38433 port->flags &= ~ASYNC_NORMAL_ACTIVE;
38434 if (port->tty) {
38435 set_bit(TTY_IO_ERROR, &port->tty->flags);
38436 @@ -264,7 +264,7 @@ int tty_port_block_til_ready(struct tty_port *port,
38437 /* The port lock protects the port counts */
38438 spin_lock_irqsave(&port->lock, flags);
38439 if (!tty_hung_up_p(filp))
38440 - port->count--;
38441 + atomic_dec(&port->count);
38442 port->blocked_open++;
38443 spin_unlock_irqrestore(&port->lock, flags);
38444
38445 @@ -306,7 +306,7 @@ int tty_port_block_til_ready(struct tty_port *port,
38446 we must not mess that up further */
38447 spin_lock_irqsave(&port->lock, flags);
38448 if (!tty_hung_up_p(filp))
38449 - port->count++;
38450 + atomic_inc(&port->count);
38451 port->blocked_open--;
38452 if (retval == 0)
38453 port->flags |= ASYNC_NORMAL_ACTIVE;
38454 @@ -326,19 +326,19 @@ int tty_port_close_start(struct tty_port *port,
38455 return 0;
38456 }
38457
38458 - if (tty->count == 1 && port->count != 1) {
38459 + if (tty->count == 1 && atomic_read(&port->count) != 1) {
38460 printk(KERN_WARNING
38461 "tty_port_close_start: tty->count = 1 port count = %d.\n",
38462 - port->count);
38463 - port->count = 1;
38464 + atomic_read(&port->count));
38465 + atomic_set(&port->count, 1);
38466 }
38467 - if (--port->count < 0) {
38468 + if (atomic_dec_return(&port->count) < 0) {
38469 printk(KERN_WARNING "tty_port_close_start: count = %d\n",
38470 - port->count);
38471 - port->count = 0;
38472 + atomic_read(&port->count));
38473 + atomic_set(&port->count, 0);
38474 }
38475
38476 - if (port->count) {
38477 + if (atomic_read(&port->count)) {
38478 spin_unlock_irqrestore(&port->lock, flags);
38479 if (port->ops->drop)
38480 port->ops->drop(port);
38481 @@ -418,7 +418,7 @@ int tty_port_open(struct tty_port *port, struct tty_struct *tty,
38482 {
38483 spin_lock_irq(&port->lock);
38484 if (!tty_hung_up_p(filp))
38485 - ++port->count;
38486 + atomic_inc(&port->count);
38487 spin_unlock_irq(&port->lock);
38488 tty_port_tty_set(port, tty);
38489
38490 diff --git a/drivers/tty/vt/keyboard.c b/drivers/tty/vt/keyboard.c
38491 index 48cc6f2..85584dd 100644
38492 --- a/drivers/tty/vt/keyboard.c
38493 +++ b/drivers/tty/vt/keyboard.c
38494 @@ -659,6 +659,16 @@ static void k_spec(struct vc_data *vc, unsigned char value, char up_flag)
38495 kbd->kbdmode == VC_OFF) &&
38496 value != KVAL(K_SAK))
38497 return; /* SAK is allowed even in raw mode */
38498 +
38499 +#if defined(CONFIG_GRKERNSEC_PROC) || defined(CONFIG_GRKERNSEC_PROC_MEMMAP)
38500 + {
38501 + void *func = fn_handler[value];
38502 + if (func == fn_show_state || func == fn_show_ptregs ||
38503 + func == fn_show_mem)
38504 + return;
38505 + }
38506 +#endif
38507 +
38508 fn_handler[value](vc);
38509 }
38510
38511 @@ -1808,9 +1818,6 @@ int vt_do_kdsk_ioctl(int cmd, struct kbentry __user *user_kbe, int perm,
38512 if (copy_from_user(&tmp, user_kbe, sizeof(struct kbentry)))
38513 return -EFAULT;
38514
38515 - if (!capable(CAP_SYS_TTY_CONFIG))
38516 - perm = 0;
38517 -
38518 switch (cmd) {
38519 case KDGKBENT:
38520 /* Ensure another thread doesn't free it under us */
38521 @@ -1825,6 +1832,9 @@ int vt_do_kdsk_ioctl(int cmd, struct kbentry __user *user_kbe, int perm,
38522 spin_unlock_irqrestore(&kbd_event_lock, flags);
38523 return put_user(val, &user_kbe->kb_value);
38524 case KDSKBENT:
38525 + if (!capable(CAP_SYS_TTY_CONFIG))
38526 + perm = 0;
38527 +
38528 if (!perm)
38529 return -EPERM;
38530 if (!i && v == K_NOSUCHMAP) {
38531 @@ -1915,9 +1925,6 @@ int vt_do_kdgkb_ioctl(int cmd, struct kbsentry __user *user_kdgkb, int perm)
38532 int i, j, k;
38533 int ret;
38534
38535 - if (!capable(CAP_SYS_TTY_CONFIG))
38536 - perm = 0;
38537 -
38538 kbs = kmalloc(sizeof(*kbs), GFP_KERNEL);
38539 if (!kbs) {
38540 ret = -ENOMEM;
38541 @@ -1951,6 +1958,9 @@ int vt_do_kdgkb_ioctl(int cmd, struct kbsentry __user *user_kdgkb, int perm)
38542 kfree(kbs);
38543 return ((p && *p) ? -EOVERFLOW : 0);
38544 case KDSKBSENT:
38545 + if (!capable(CAP_SYS_TTY_CONFIG))
38546 + perm = 0;
38547 +
38548 if (!perm) {
38549 ret = -EPERM;
38550 goto reterr;
38551 diff --git a/drivers/uio/uio.c b/drivers/uio/uio.c
38552 index a783d53..cb30d94 100644
38553 --- a/drivers/uio/uio.c
38554 +++ b/drivers/uio/uio.c
38555 @@ -25,6 +25,7 @@
38556 #include <linux/kobject.h>
38557 #include <linux/cdev.h>
38558 #include <linux/uio_driver.h>
38559 +#include <asm/local.h>
38560
38561 #define UIO_MAX_DEVICES (1U << MINORBITS)
38562
38563 @@ -32,10 +33,10 @@ struct uio_device {
38564 struct module *owner;
38565 struct device *dev;
38566 int minor;
38567 - atomic_t event;
38568 + atomic_unchecked_t event;
38569 struct fasync_struct *async_queue;
38570 wait_queue_head_t wait;
38571 - int vma_count;
38572 + local_t vma_count;
38573 struct uio_info *info;
38574 struct kobject *map_dir;
38575 struct kobject *portio_dir;
38576 @@ -242,7 +243,7 @@ static ssize_t show_event(struct device *dev,
38577 struct device_attribute *attr, char *buf)
38578 {
38579 struct uio_device *idev = dev_get_drvdata(dev);
38580 - return sprintf(buf, "%u\n", (unsigned int)atomic_read(&idev->event));
38581 + return sprintf(buf, "%u\n", (unsigned int)atomic_read_unchecked(&idev->event));
38582 }
38583
38584 static struct device_attribute uio_class_attributes[] = {
38585 @@ -408,7 +409,7 @@ void uio_event_notify(struct uio_info *info)
38586 {
38587 struct uio_device *idev = info->uio_dev;
38588
38589 - atomic_inc(&idev->event);
38590 + atomic_inc_unchecked(&idev->event);
38591 wake_up_interruptible(&idev->wait);
38592 kill_fasync(&idev->async_queue, SIGIO, POLL_IN);
38593 }
38594 @@ -461,7 +462,7 @@ static int uio_open(struct inode *inode, struct file *filep)
38595 }
38596
38597 listener->dev = idev;
38598 - listener->event_count = atomic_read(&idev->event);
38599 + listener->event_count = atomic_read_unchecked(&idev->event);
38600 filep->private_data = listener;
38601
38602 if (idev->info->open) {
38603 @@ -512,7 +513,7 @@ static unsigned int uio_poll(struct file *filep, poll_table *wait)
38604 return -EIO;
38605
38606 poll_wait(filep, &idev->wait, wait);
38607 - if (listener->event_count != atomic_read(&idev->event))
38608 + if (listener->event_count != atomic_read_unchecked(&idev->event))
38609 return POLLIN | POLLRDNORM;
38610 return 0;
38611 }
38612 @@ -537,7 +538,7 @@ static ssize_t uio_read(struct file *filep, char __user *buf,
38613 do {
38614 set_current_state(TASK_INTERRUPTIBLE);
38615
38616 - event_count = atomic_read(&idev->event);
38617 + event_count = atomic_read_unchecked(&idev->event);
38618 if (event_count != listener->event_count) {
38619 if (copy_to_user(buf, &event_count, count))
38620 retval = -EFAULT;
38621 @@ -606,13 +607,13 @@ static int uio_find_mem_index(struct vm_area_struct *vma)
38622 static void uio_vma_open(struct vm_area_struct *vma)
38623 {
38624 struct uio_device *idev = vma->vm_private_data;
38625 - idev->vma_count++;
38626 + local_inc(&idev->vma_count);
38627 }
38628
38629 static void uio_vma_close(struct vm_area_struct *vma)
38630 {
38631 struct uio_device *idev = vma->vm_private_data;
38632 - idev->vma_count--;
38633 + local_dec(&idev->vma_count);
38634 }
38635
38636 static int uio_vma_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
38637 @@ -821,7 +822,7 @@ int __uio_register_device(struct module *owner,
38638 idev->owner = owner;
38639 idev->info = info;
38640 init_waitqueue_head(&idev->wait);
38641 - atomic_set(&idev->event, 0);
38642 + atomic_set_unchecked(&idev->event, 0);
38643
38644 ret = uio_get_minor(idev);
38645 if (ret)
38646 diff --git a/drivers/usb/atm/cxacru.c b/drivers/usb/atm/cxacru.c
38647 index b7eb86a..36d28af 100644
38648 --- a/drivers/usb/atm/cxacru.c
38649 +++ b/drivers/usb/atm/cxacru.c
38650 @@ -473,7 +473,7 @@ static ssize_t cxacru_sysfs_store_adsl_config(struct device *dev,
38651 ret = sscanf(buf + pos, "%x=%x%n", &index, &value, &tmp);
38652 if (ret < 2)
38653 return -EINVAL;
38654 - if (index < 0 || index > 0x7f)
38655 + if (index > 0x7f)
38656 return -EINVAL;
38657 pos += tmp;
38658
38659 diff --git a/drivers/usb/atm/usbatm.c b/drivers/usb/atm/usbatm.c
38660 index ee62b35..b663594 100644
38661 --- a/drivers/usb/atm/usbatm.c
38662 +++ b/drivers/usb/atm/usbatm.c
38663 @@ -333,7 +333,7 @@ static void usbatm_extract_one_cell(struct usbatm_data *instance, unsigned char
38664 if (printk_ratelimit())
38665 atm_warn(instance, "%s: OAM not supported (vpi %d, vci %d)!\n",
38666 __func__, vpi, vci);
38667 - atomic_inc(&vcc->stats->rx_err);
38668 + atomic_inc_unchecked(&vcc->stats->rx_err);
38669 return;
38670 }
38671
38672 @@ -361,7 +361,7 @@ static void usbatm_extract_one_cell(struct usbatm_data *instance, unsigned char
38673 if (length > ATM_MAX_AAL5_PDU) {
38674 atm_rldbg(instance, "%s: bogus length %u (vcc: 0x%p)!\n",
38675 __func__, length, vcc);
38676 - atomic_inc(&vcc->stats->rx_err);
38677 + atomic_inc_unchecked(&vcc->stats->rx_err);
38678 goto out;
38679 }
38680
38681 @@ -370,14 +370,14 @@ static void usbatm_extract_one_cell(struct usbatm_data *instance, unsigned char
38682 if (sarb->len < pdu_length) {
38683 atm_rldbg(instance, "%s: bogus pdu_length %u (sarb->len: %u, vcc: 0x%p)!\n",
38684 __func__, pdu_length, sarb->len, vcc);
38685 - atomic_inc(&vcc->stats->rx_err);
38686 + atomic_inc_unchecked(&vcc->stats->rx_err);
38687 goto out;
38688 }
38689
38690 if (crc32_be(~0, skb_tail_pointer(sarb) - pdu_length, pdu_length) != 0xc704dd7b) {
38691 atm_rldbg(instance, "%s: packet failed crc check (vcc: 0x%p)!\n",
38692 __func__, vcc);
38693 - atomic_inc(&vcc->stats->rx_err);
38694 + atomic_inc_unchecked(&vcc->stats->rx_err);
38695 goto out;
38696 }
38697
38698 @@ -387,7 +387,7 @@ static void usbatm_extract_one_cell(struct usbatm_data *instance, unsigned char
38699 if (printk_ratelimit())
38700 atm_err(instance, "%s: no memory for skb (length: %u)!\n",
38701 __func__, length);
38702 - atomic_inc(&vcc->stats->rx_drop);
38703 + atomic_inc_unchecked(&vcc->stats->rx_drop);
38704 goto out;
38705 }
38706
38707 @@ -412,7 +412,7 @@ static void usbatm_extract_one_cell(struct usbatm_data *instance, unsigned char
38708
38709 vcc->push(vcc, skb);
38710
38711 - atomic_inc(&vcc->stats->rx);
38712 + atomic_inc_unchecked(&vcc->stats->rx);
38713 out:
38714 skb_trim(sarb, 0);
38715 }
38716 @@ -615,7 +615,7 @@ static void usbatm_tx_process(unsigned long data)
38717 struct atm_vcc *vcc = UDSL_SKB(skb)->atm.vcc;
38718
38719 usbatm_pop(vcc, skb);
38720 - atomic_inc(&vcc->stats->tx);
38721 + atomic_inc_unchecked(&vcc->stats->tx);
38722
38723 skb = skb_dequeue(&instance->sndqueue);
38724 }
38725 @@ -770,11 +770,11 @@ static int usbatm_atm_proc_read(struct atm_dev *atm_dev, loff_t * pos, char *pag
38726 if (!left--)
38727 return sprintf(page,
38728 "AAL5: tx %d ( %d err ), rx %d ( %d err, %d drop )\n",
38729 - atomic_read(&atm_dev->stats.aal5.tx),
38730 - atomic_read(&atm_dev->stats.aal5.tx_err),
38731 - atomic_read(&atm_dev->stats.aal5.rx),
38732 - atomic_read(&atm_dev->stats.aal5.rx_err),
38733 - atomic_read(&atm_dev->stats.aal5.rx_drop));
38734 + atomic_read_unchecked(&atm_dev->stats.aal5.tx),
38735 + atomic_read_unchecked(&atm_dev->stats.aal5.tx_err),
38736 + atomic_read_unchecked(&atm_dev->stats.aal5.rx),
38737 + atomic_read_unchecked(&atm_dev->stats.aal5.rx_err),
38738 + atomic_read_unchecked(&atm_dev->stats.aal5.rx_drop));
38739
38740 if (!left--) {
38741 if (instance->disconnected)
38742 diff --git a/drivers/usb/core/devices.c b/drivers/usb/core/devices.c
38743 index d956965..4179a77 100644
38744 --- a/drivers/usb/core/devices.c
38745 +++ b/drivers/usb/core/devices.c
38746 @@ -126,7 +126,7 @@ static const char format_endpt[] =
38747 * time it gets called.
38748 */
38749 static struct device_connect_event {
38750 - atomic_t count;
38751 + atomic_unchecked_t count;
38752 wait_queue_head_t wait;
38753 } device_event = {
38754 .count = ATOMIC_INIT(1),
38755 @@ -164,7 +164,7 @@ static const struct class_info clas_info[] = {
38756
38757 void usbfs_conn_disc_event(void)
38758 {
38759 - atomic_add(2, &device_event.count);
38760 + atomic_add_unchecked(2, &device_event.count);
38761 wake_up(&device_event.wait);
38762 }
38763
38764 @@ -648,7 +648,7 @@ static unsigned int usb_device_poll(struct file *file,
38765
38766 poll_wait(file, &device_event.wait, wait);
38767
38768 - event_count = atomic_read(&device_event.count);
38769 + event_count = atomic_read_unchecked(&device_event.count);
38770 if (file->f_version != event_count) {
38771 file->f_version = event_count;
38772 return POLLIN | POLLRDNORM;
38773 diff --git a/drivers/usb/early/ehci-dbgp.c b/drivers/usb/early/ehci-dbgp.c
38774 index 347bb05..63e1b73 100644
38775 --- a/drivers/usb/early/ehci-dbgp.c
38776 +++ b/drivers/usb/early/ehci-dbgp.c
38777 @@ -97,7 +97,8 @@ static inline u32 dbgp_len_update(u32 x, u32 len)
38778
38779 #ifdef CONFIG_KGDB
38780 static struct kgdb_io kgdbdbgp_io_ops;
38781 -#define dbgp_kgdb_mode (dbg_io_ops == &kgdbdbgp_io_ops)
38782 +static struct kgdb_io kgdbdbgp_io_ops_console;
38783 +#define dbgp_kgdb_mode (dbg_io_ops == &kgdbdbgp_io_ops || dbg_io_ops == &kgdbdbgp_io_ops_console)
38784 #else
38785 #define dbgp_kgdb_mode (0)
38786 #endif
38787 @@ -1035,6 +1036,13 @@ static struct kgdb_io kgdbdbgp_io_ops = {
38788 .write_char = kgdbdbgp_write_char,
38789 };
38790
38791 +static struct kgdb_io kgdbdbgp_io_ops_console = {
38792 + .name = "kgdbdbgp",
38793 + .read_char = kgdbdbgp_read_char,
38794 + .write_char = kgdbdbgp_write_char,
38795 + .is_console = 1
38796 +};
38797 +
38798 static int kgdbdbgp_wait_time;
38799
38800 static int __init kgdbdbgp_parse_config(char *str)
38801 @@ -1050,8 +1058,10 @@ static int __init kgdbdbgp_parse_config(char *str)
38802 ptr++;
38803 kgdbdbgp_wait_time = simple_strtoul(ptr, &ptr, 10);
38804 }
38805 - kgdb_register_io_module(&kgdbdbgp_io_ops);
38806 - kgdbdbgp_io_ops.is_console = early_dbgp_console.index != -1;
38807 + if (early_dbgp_console.index != -1)
38808 + kgdb_register_io_module(&kgdbdbgp_io_ops_console);
38809 + else
38810 + kgdb_register_io_module(&kgdbdbgp_io_ops);
38811
38812 return 0;
38813 }
38814 diff --git a/drivers/usb/gadget/u_serial.c b/drivers/usb/gadget/u_serial.c
38815 index 5b3f5ff..6e00893 100644
38816 --- a/drivers/usb/gadget/u_serial.c
38817 +++ b/drivers/usb/gadget/u_serial.c
38818 @@ -731,9 +731,9 @@ static int gs_open(struct tty_struct *tty, struct file *file)
38819 spin_lock_irq(&port->port_lock);
38820
38821 /* already open? Great. */
38822 - if (port->port.count) {
38823 + if (atomic_read(&port->port.count)) {
38824 status = 0;
38825 - port->port.count++;
38826 + atomic_inc(&port->port.count);
38827
38828 /* currently opening/closing? wait ... */
38829 } else if (port->openclose) {
38830 @@ -792,7 +792,7 @@ static int gs_open(struct tty_struct *tty, struct file *file)
38831 tty->driver_data = port;
38832 port->port.tty = tty;
38833
38834 - port->port.count = 1;
38835 + atomic_set(&port->port.count, 1);
38836 port->openclose = false;
38837
38838 /* if connected, start the I/O stream */
38839 @@ -834,11 +834,11 @@ static void gs_close(struct tty_struct *tty, struct file *file)
38840
38841 spin_lock_irq(&port->port_lock);
38842
38843 - if (port->port.count != 1) {
38844 - if (port->port.count == 0)
38845 + if (atomic_read(&port->port.count) != 1) {
38846 + if (atomic_read(&port->port.count) == 0)
38847 WARN_ON(1);
38848 else
38849 - --port->port.count;
38850 + atomic_dec(&port->port.count);
38851 goto exit;
38852 }
38853
38854 @@ -848,7 +848,7 @@ static void gs_close(struct tty_struct *tty, struct file *file)
38855 * and sleep if necessary
38856 */
38857 port->openclose = true;
38858 - port->port.count = 0;
38859 + atomic_set(&port->port.count, 0);
38860
38861 gser = port->port_usb;
38862 if (gser && gser->disconnect)
38863 @@ -1152,7 +1152,7 @@ static int gs_closed(struct gs_port *port)
38864 int cond;
38865
38866 spin_lock_irq(&port->port_lock);
38867 - cond = (port->port.count == 0) && !port->openclose;
38868 + cond = (atomic_read(&port->port.count) == 0) && !port->openclose;
38869 spin_unlock_irq(&port->port_lock);
38870 return cond;
38871 }
38872 @@ -1265,7 +1265,7 @@ int gserial_connect(struct gserial *gser, u8 port_num)
38873 /* if it's already open, start I/O ... and notify the serial
38874 * protocol about open/close status (connect/disconnect).
38875 */
38876 - if (port->port.count) {
38877 + if (atomic_read(&port->port.count)) {
38878 pr_debug("gserial_connect: start ttyGS%d\n", port->port_num);
38879 gs_start_io(port);
38880 if (gser->connect)
38881 @@ -1312,7 +1312,7 @@ void gserial_disconnect(struct gserial *gser)
38882
38883 port->port_usb = NULL;
38884 gser->ioport = NULL;
38885 - if (port->port.count > 0 || port->openclose) {
38886 + if (atomic_read(&port->port.count) > 0 || port->openclose) {
38887 wake_up_interruptible(&port->drain_wait);
38888 if (port->port.tty)
38889 tty_hangup(port->port.tty);
38890 @@ -1328,7 +1328,7 @@ void gserial_disconnect(struct gserial *gser)
38891
38892 /* finally, free any unused/unusable I/O buffers */
38893 spin_lock_irqsave(&port->port_lock, flags);
38894 - if (port->port.count == 0 && !port->openclose)
38895 + if (atomic_read(&port->port.count) == 0 && !port->openclose)
38896 gs_buf_free(&port->port_write_buf);
38897 gs_free_requests(gser->out, &port->read_pool, NULL);
38898 gs_free_requests(gser->out, &port->read_queue, NULL);
38899 diff --git a/drivers/usb/serial/console.c b/drivers/usb/serial/console.c
38900 index b9cca6d..75c75df 100644
38901 --- a/drivers/usb/serial/console.c
38902 +++ b/drivers/usb/serial/console.c
38903 @@ -127,7 +127,7 @@ static int usb_console_setup(struct console *co, char *options)
38904
38905 info->port = port;
38906
38907 - ++port->port.count;
38908 + atomic_inc(&port->port.count);
38909 if (!test_bit(ASYNCB_INITIALIZED, &port->port.flags)) {
38910 if (serial->type->set_termios) {
38911 /*
38912 @@ -177,7 +177,7 @@ static int usb_console_setup(struct console *co, char *options)
38913 }
38914 /* Now that any required fake tty operations are completed restore
38915 * the tty port count */
38916 - --port->port.count;
38917 + atomic_dec(&port->port.count);
38918 /* The console is special in terms of closing the device so
38919 * indicate this port is now acting as a system console. */
38920 port->port.console = 1;
38921 @@ -190,7 +190,7 @@ static int usb_console_setup(struct console *co, char *options)
38922 free_tty:
38923 kfree(tty);
38924 reset_open_count:
38925 - port->port.count = 0;
38926 + atomic_set(&port->port.count, 0);
38927 usb_autopm_put_interface(serial->interface);
38928 error_get_interface:
38929 usb_serial_put(serial);
38930 diff --git a/drivers/usb/wusbcore/wa-hc.h b/drivers/usb/wusbcore/wa-hc.h
38931 index d6bea3e..60b250e 100644
38932 --- a/drivers/usb/wusbcore/wa-hc.h
38933 +++ b/drivers/usb/wusbcore/wa-hc.h
38934 @@ -192,7 +192,7 @@ struct wahc {
38935 struct list_head xfer_delayed_list;
38936 spinlock_t xfer_list_lock;
38937 struct work_struct xfer_work;
38938 - atomic_t xfer_id_count;
38939 + atomic_unchecked_t xfer_id_count;
38940 };
38941
38942
38943 @@ -246,7 +246,7 @@ static inline void wa_init(struct wahc *wa)
38944 INIT_LIST_HEAD(&wa->xfer_delayed_list);
38945 spin_lock_init(&wa->xfer_list_lock);
38946 INIT_WORK(&wa->xfer_work, wa_urb_enqueue_run);
38947 - atomic_set(&wa->xfer_id_count, 1);
38948 + atomic_set_unchecked(&wa->xfer_id_count, 1);
38949 }
38950
38951 /**
38952 diff --git a/drivers/usb/wusbcore/wa-xfer.c b/drivers/usb/wusbcore/wa-xfer.c
38953 index 57c01ab..8a05959 100644
38954 --- a/drivers/usb/wusbcore/wa-xfer.c
38955 +++ b/drivers/usb/wusbcore/wa-xfer.c
38956 @@ -296,7 +296,7 @@ out:
38957 */
38958 static void wa_xfer_id_init(struct wa_xfer *xfer)
38959 {
38960 - xfer->id = atomic_add_return(1, &xfer->wa->xfer_id_count);
38961 + xfer->id = atomic_add_return_unchecked(1, &xfer->wa->xfer_id_count);
38962 }
38963
38964 /*
38965 diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
38966 index 112156f..eb81154 100644
38967 --- a/drivers/vhost/vhost.c
38968 +++ b/drivers/vhost/vhost.c
38969 @@ -635,7 +635,7 @@ static long vhost_set_memory(struct vhost_dev *d, struct vhost_memory __user *m)
38970 return 0;
38971 }
38972
38973 -static long vhost_set_vring(struct vhost_dev *d, int ioctl, void __user *argp)
38974 +static long vhost_set_vring(struct vhost_dev *d, unsigned int ioctl, void __user *argp)
38975 {
38976 struct file *eventfp, *filep = NULL,
38977 *pollstart = NULL, *pollstop = NULL;
38978 diff --git a/drivers/video/aty/aty128fb.c b/drivers/video/aty/aty128fb.c
38979 index b0b2ac3..89a4399 100644
38980 --- a/drivers/video/aty/aty128fb.c
38981 +++ b/drivers/video/aty/aty128fb.c
38982 @@ -148,7 +148,7 @@ enum {
38983 };
38984
38985 /* Must match above enum */
38986 -static const char *r128_family[] __devinitdata = {
38987 +static const char *r128_family[] __devinitconst = {
38988 "AGP",
38989 "PCI",
38990 "PRO AGP",
38991 diff --git a/drivers/video/fbcmap.c b/drivers/video/fbcmap.c
38992 index 5c3960d..15cf8fc 100644
38993 --- a/drivers/video/fbcmap.c
38994 +++ b/drivers/video/fbcmap.c
38995 @@ -285,8 +285,7 @@ int fb_set_user_cmap(struct fb_cmap_user *cmap, struct fb_info *info)
38996 rc = -ENODEV;
38997 goto out;
38998 }
38999 - if (cmap->start < 0 || (!info->fbops->fb_setcolreg &&
39000 - !info->fbops->fb_setcmap)) {
39001 + if (!info->fbops->fb_setcolreg && !info->fbops->fb_setcmap) {
39002 rc = -EINVAL;
39003 goto out1;
39004 }
39005 diff --git a/drivers/video/fbmem.c b/drivers/video/fbmem.c
39006 index 0dff12a..2ef47b3 100644
39007 --- a/drivers/video/fbmem.c
39008 +++ b/drivers/video/fbmem.c
39009 @@ -428,7 +428,7 @@ static void fb_do_show_logo(struct fb_info *info, struct fb_image *image,
39010 image->dx += image->width + 8;
39011 }
39012 } else if (rotate == FB_ROTATE_UD) {
39013 - for (x = 0; x < num && image->dx >= 0; x++) {
39014 + for (x = 0; x < num && (__s32)image->dx >= 0; x++) {
39015 info->fbops->fb_imageblit(info, image);
39016 image->dx -= image->width + 8;
39017 }
39018 @@ -440,7 +440,7 @@ static void fb_do_show_logo(struct fb_info *info, struct fb_image *image,
39019 image->dy += image->height + 8;
39020 }
39021 } else if (rotate == FB_ROTATE_CCW) {
39022 - for (x = 0; x < num && image->dy >= 0; x++) {
39023 + for (x = 0; x < num && (__s32)image->dy >= 0; x++) {
39024 info->fbops->fb_imageblit(info, image);
39025 image->dy -= image->height + 8;
39026 }
39027 @@ -1166,7 +1166,7 @@ static long do_fb_ioctl(struct fb_info *info, unsigned int cmd,
39028 return -EFAULT;
39029 if (con2fb.console < 1 || con2fb.console > MAX_NR_CONSOLES)
39030 return -EINVAL;
39031 - if (con2fb.framebuffer < 0 || con2fb.framebuffer >= FB_MAX)
39032 + if (con2fb.framebuffer >= FB_MAX)
39033 return -EINVAL;
39034 if (!registered_fb[con2fb.framebuffer])
39035 request_module("fb%d", con2fb.framebuffer);
39036 diff --git a/drivers/video/geode/gx1fb_core.c b/drivers/video/geode/gx1fb_core.c
39037 index 5a5d092..265c5ed 100644
39038 --- a/drivers/video/geode/gx1fb_core.c
39039 +++ b/drivers/video/geode/gx1fb_core.c
39040 @@ -29,7 +29,7 @@ static int crt_option = 1;
39041 static char panel_option[32] = "";
39042
39043 /* Modes relevant to the GX1 (taken from modedb.c) */
39044 -static const struct fb_videomode __devinitdata gx1_modedb[] = {
39045 +static const struct fb_videomode __devinitconst gx1_modedb[] = {
39046 /* 640x480-60 VESA */
39047 { NULL, 60, 640, 480, 39682, 48, 16, 33, 10, 96, 2,
39048 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
39049 diff --git a/drivers/video/gxt4500.c b/drivers/video/gxt4500.c
39050 index 0fad23f..0e9afa4 100644
39051 --- a/drivers/video/gxt4500.c
39052 +++ b/drivers/video/gxt4500.c
39053 @@ -156,7 +156,7 @@ struct gxt4500_par {
39054 static char *mode_option;
39055
39056 /* default mode: 1280x1024 @ 60 Hz, 8 bpp */
39057 -static const struct fb_videomode defaultmode __devinitdata = {
39058 +static const struct fb_videomode defaultmode __devinitconst = {
39059 .refresh = 60,
39060 .xres = 1280,
39061 .yres = 1024,
39062 @@ -581,7 +581,7 @@ static int gxt4500_blank(int blank, struct fb_info *info)
39063 return 0;
39064 }
39065
39066 -static const struct fb_fix_screeninfo gxt4500_fix __devinitdata = {
39067 +static const struct fb_fix_screeninfo gxt4500_fix __devinitconst = {
39068 .id = "IBM GXT4500P",
39069 .type = FB_TYPE_PACKED_PIXELS,
39070 .visual = FB_VISUAL_PSEUDOCOLOR,
39071 diff --git a/drivers/video/i810/i810_accel.c b/drivers/video/i810/i810_accel.c
39072 index 7672d2e..b56437f 100644
39073 --- a/drivers/video/i810/i810_accel.c
39074 +++ b/drivers/video/i810/i810_accel.c
39075 @@ -73,6 +73,7 @@ static inline int wait_for_space(struct fb_info *info, u32 space)
39076 }
39077 }
39078 printk("ringbuffer lockup!!!\n");
39079 + printk("head:%u tail:%u iring.size:%u space:%u\n", head, tail, par->iring.size, space);
39080 i810_report_error(mmio);
39081 par->dev_flags |= LOCKUP;
39082 info->pixmap.scan_align = 1;
39083 diff --git a/drivers/video/i810/i810_main.c b/drivers/video/i810/i810_main.c
39084 index b83f361..2b05a91 100644
39085 --- a/drivers/video/i810/i810_main.c
39086 +++ b/drivers/video/i810/i810_main.c
39087 @@ -97,7 +97,7 @@ static int i810fb_blank (int blank_mode, struct fb_info *info);
39088 static void i810fb_release_resource (struct fb_info *info, struct i810fb_par *par);
39089
39090 /* PCI */
39091 -static const char *i810_pci_list[] __devinitdata = {
39092 +static const char *i810_pci_list[] __devinitconst = {
39093 "Intel(R) 810 Framebuffer Device" ,
39094 "Intel(R) 810-DC100 Framebuffer Device" ,
39095 "Intel(R) 810E Framebuffer Device" ,
39096 diff --git a/drivers/video/jz4740_fb.c b/drivers/video/jz4740_fb.c
39097 index de36693..3c63fc2 100644
39098 --- a/drivers/video/jz4740_fb.c
39099 +++ b/drivers/video/jz4740_fb.c
39100 @@ -136,7 +136,7 @@ struct jzfb {
39101 uint32_t pseudo_palette[16];
39102 };
39103
39104 -static const struct fb_fix_screeninfo jzfb_fix __devinitdata = {
39105 +static const struct fb_fix_screeninfo jzfb_fix __devinitconst = {
39106 .id = "JZ4740 FB",
39107 .type = FB_TYPE_PACKED_PIXELS,
39108 .visual = FB_VISUAL_TRUECOLOR,
39109 diff --git a/drivers/video/logo/logo_linux_clut224.ppm b/drivers/video/logo/logo_linux_clut224.ppm
39110 index 3c14e43..eafa544 100644
39111 --- a/drivers/video/logo/logo_linux_clut224.ppm
39112 +++ b/drivers/video/logo/logo_linux_clut224.ppm
39113 @@ -1,1604 +1,1123 @@
39114 P3
39115 -# Standard 224-color Linux logo
39116 80 80
39117 255
39118 - 0 0 0 0 0 0 0 0 0 0 0 0
39119 - 0 0 0 0 0 0 0 0 0 0 0 0
39120 - 0 0 0 0 0 0 0 0 0 0 0 0
39121 - 0 0 0 0 0 0 0 0 0 0 0 0
39122 - 0 0 0 0 0 0 0 0 0 0 0 0
39123 - 0 0 0 0 0 0 0 0 0 0 0 0
39124 - 0 0 0 0 0 0 0 0 0 0 0 0
39125 - 0 0 0 0 0 0 0 0 0 0 0 0
39126 - 0 0 0 0 0 0 0 0 0 0 0 0
39127 - 6 6 6 6 6 6 10 10 10 10 10 10
39128 - 10 10 10 6 6 6 6 6 6 6 6 6
39129 - 0 0 0 0 0 0 0 0 0 0 0 0
39130 - 0 0 0 0 0 0 0 0 0 0 0 0
39131 - 0 0 0 0 0 0 0 0 0 0 0 0
39132 - 0 0 0 0 0 0 0 0 0 0 0 0
39133 - 0 0 0 0 0 0 0 0 0 0 0 0
39134 - 0 0 0 0 0 0 0 0 0 0 0 0
39135 - 0 0 0 0 0 0 0 0 0 0 0 0
39136 - 0 0 0 0 0 0 0 0 0 0 0 0
39137 - 0 0 0 0 0 0 0 0 0 0 0 0
39138 - 0 0 0 0 0 0 0 0 0 0 0 0
39139 - 0 0 0 0 0 0 0 0 0 0 0 0
39140 - 0 0 0 0 0 0 0 0 0 0 0 0
39141 - 0 0 0 0 0 0 0 0 0 0 0 0
39142 - 0 0 0 0 0 0 0 0 0 0 0 0
39143 - 0 0 0 0 0 0 0 0 0 0 0 0
39144 - 0 0 0 0 0 0 0 0 0 0 0 0
39145 - 0 0 0 0 0 0 0 0 0 0 0 0
39146 - 0 0 0 6 6 6 10 10 10 14 14 14
39147 - 22 22 22 26 26 26 30 30 30 34 34 34
39148 - 30 30 30 30 30 30 26 26 26 18 18 18
39149 - 14 14 14 10 10 10 6 6 6 0 0 0
39150 - 0 0 0 0 0 0 0 0 0 0 0 0
39151 - 0 0 0 0 0 0 0 0 0 0 0 0
39152 - 0 0 0 0 0 0 0 0 0 0 0 0
39153 - 0 0 0 0 0 0 0 0 0 0 0 0
39154 - 0 0 0 0 0 0 0 0 0 0 0 0
39155 - 0 0 0 0 0 0 0 0 0 0 0 0
39156 - 0 0 0 0 0 0 0 0 0 0 0 0
39157 - 0 0 0 0 0 0 0 0 0 0 0 0
39158 - 0 0 0 0 0 0 0 0 0 0 0 0
39159 - 0 0 0 0 0 1 0 0 1 0 0 0
39160 - 0 0 0 0 0 0 0 0 0 0 0 0
39161 - 0 0 0 0 0 0 0 0 0 0 0 0
39162 - 0 0 0 0 0 0 0 0 0 0 0 0
39163 - 0 0 0 0 0 0 0 0 0 0 0 0
39164 - 0 0 0 0 0 0 0 0 0 0 0 0
39165 - 0 0 0 0 0 0 0 0 0 0 0 0
39166 - 6 6 6 14 14 14 26 26 26 42 42 42
39167 - 54 54 54 66 66 66 78 78 78 78 78 78
39168 - 78 78 78 74 74 74 66 66 66 54 54 54
39169 - 42 42 42 26 26 26 18 18 18 10 10 10
39170 - 6 6 6 0 0 0 0 0 0 0 0 0
39171 - 0 0 0 0 0 0 0 0 0 0 0 0
39172 - 0 0 0 0 0 0 0 0 0 0 0 0
39173 - 0 0 0 0 0 0 0 0 0 0 0 0
39174 - 0 0 0 0 0 0 0 0 0 0 0 0
39175 - 0 0 0 0 0 0 0 0 0 0 0 0
39176 - 0 0 0 0 0 0 0 0 0 0 0 0
39177 - 0 0 0 0 0 0 0 0 0 0 0 0
39178 - 0 0 0 0 0 0 0 0 0 0 0 0
39179 - 0 0 1 0 0 0 0 0 0 0 0 0
39180 - 0 0 0 0 0 0 0 0 0 0 0 0
39181 - 0 0 0 0 0 0 0 0 0 0 0 0
39182 - 0 0 0 0 0 0 0 0 0 0 0 0
39183 - 0 0 0 0 0 0 0 0 0 0 0 0
39184 - 0 0 0 0 0 0 0 0 0 0 0 0
39185 - 0 0 0 0 0 0 0 0 0 10 10 10
39186 - 22 22 22 42 42 42 66 66 66 86 86 86
39187 - 66 66 66 38 38 38 38 38 38 22 22 22
39188 - 26 26 26 34 34 34 54 54 54 66 66 66
39189 - 86 86 86 70 70 70 46 46 46 26 26 26
39190 - 14 14 14 6 6 6 0 0 0 0 0 0
39191 - 0 0 0 0 0 0 0 0 0 0 0 0
39192 - 0 0 0 0 0 0 0 0 0 0 0 0
39193 - 0 0 0 0 0 0 0 0 0 0 0 0
39194 - 0 0 0 0 0 0 0 0 0 0 0 0
39195 - 0 0 0 0 0 0 0 0 0 0 0 0
39196 - 0 0 0 0 0 0 0 0 0 0 0 0
39197 - 0 0 0 0 0 0 0 0 0 0 0 0
39198 - 0 0 0 0 0 0 0 0 0 0 0 0
39199 - 0 0 1 0 0 1 0 0 1 0 0 0
39200 - 0 0 0 0 0 0 0 0 0 0 0 0
39201 - 0 0 0 0 0 0 0 0 0 0 0 0
39202 - 0 0 0 0 0 0 0 0 0 0 0 0
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41761 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
41762 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
41763 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
41764 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
41765 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
41766 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
41767 +4 4 4 4 4 4
41768 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
41769 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
41770 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
41771 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 5 5 5
41772 +4 3 3 6 6 6 4 3 3 6 6 6 6 6 6 6 6 6
41773 +4 0 0 6 6 6 4 0 0 6 6 6 6 6 6 6 6 6
41774 +6 6 6 4 3 3 5 5 5 4 4 4 4 4 4 4 4 4
41775 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
41776 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
41777 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
41778 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
41779 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
41780 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
41781 +4 4 4 4 4 4
41782 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
41783 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
41784 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
41785 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
41786 +4 4 4 5 5 5 4 3 3 5 5 5 4 0 0 6 6 6
41787 +6 6 6 4 0 0 6 6 6 6 6 6 4 0 0 6 6 6
41788 +4 3 3 5 5 5 5 5 5 4 4 4 4 4 4 4 4 4
41789 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
41790 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
41791 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
41792 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
41793 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
41794 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
41795 +4 4 4 4 4 4
41796 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
41797 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
41798 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
41799 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
41800 +4 4 4 5 5 5 4 3 3 5 5 5 6 6 6 4 3 3
41801 +4 3 3 6 6 6 6 6 6 4 3 3 6 6 6 4 3 3
41802 +5 5 5 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
41803 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
41804 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
41805 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
41806 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
41807 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
41808 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
41809 +4 4 4 4 4 4
41810 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
41811 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
41812 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
41813 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
41814 +4 4 4 4 4 4 4 4 4 5 5 5 4 3 3 6 6 6
41815 +5 5 5 4 3 3 4 3 3 4 3 3 5 5 5 5 5 5
41816 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
41817 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
41818 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
41819 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
41820 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
41821 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
41822 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
41823 +4 4 4 4 4 4
41824 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
41825 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
41826 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
41827 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
41828 +4 4 4 4 4 4 4 4 4 4 4 4 5 5 5 4 3 3
41829 +5 5 5 4 3 3 5 5 5 5 5 5 4 4 4 4 4 4
41830 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
41831 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
41832 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
41833 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
41834 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
41835 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
41836 +4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
41837 +4 4 4 4 4 4
41838 diff --git a/drivers/video/udlfb.c b/drivers/video/udlfb.c
41839 index 8af6414..658c030 100644
41840 --- a/drivers/video/udlfb.c
41841 +++ b/drivers/video/udlfb.c
41842 @@ -620,11 +620,11 @@ int dlfb_handle_damage(struct dlfb_data *dev, int x, int y,
41843 dlfb_urb_completion(urb);
41844
41845 error:
41846 - atomic_add(bytes_sent, &dev->bytes_sent);
41847 - atomic_add(bytes_identical, &dev->bytes_identical);
41848 - atomic_add(width*height*2, &dev->bytes_rendered);
41849 + atomic_add_unchecked(bytes_sent, &dev->bytes_sent);
41850 + atomic_add_unchecked(bytes_identical, &dev->bytes_identical);
41851 + atomic_add_unchecked(width*height*2, &dev->bytes_rendered);
41852 end_cycles = get_cycles();
41853 - atomic_add(((unsigned int) ((end_cycles - start_cycles)
41854 + atomic_add_unchecked(((unsigned int) ((end_cycles - start_cycles)
41855 >> 10)), /* Kcycles */
41856 &dev->cpu_kcycles_used);
41857
41858 @@ -745,11 +745,11 @@ static void dlfb_dpy_deferred_io(struct fb_info *info,
41859 dlfb_urb_completion(urb);
41860
41861 error:
41862 - atomic_add(bytes_sent, &dev->bytes_sent);
41863 - atomic_add(bytes_identical, &dev->bytes_identical);
41864 - atomic_add(bytes_rendered, &dev->bytes_rendered);
41865 + atomic_add_unchecked(bytes_sent, &dev->bytes_sent);
41866 + atomic_add_unchecked(bytes_identical, &dev->bytes_identical);
41867 + atomic_add_unchecked(bytes_rendered, &dev->bytes_rendered);
41868 end_cycles = get_cycles();
41869 - atomic_add(((unsigned int) ((end_cycles - start_cycles)
41870 + atomic_add_unchecked(((unsigned int) ((end_cycles - start_cycles)
41871 >> 10)), /* Kcycles */
41872 &dev->cpu_kcycles_used);
41873 }
41874 @@ -1373,7 +1373,7 @@ static ssize_t metrics_bytes_rendered_show(struct device *fbdev,
41875 struct fb_info *fb_info = dev_get_drvdata(fbdev);
41876 struct dlfb_data *dev = fb_info->par;
41877 return snprintf(buf, PAGE_SIZE, "%u\n",
41878 - atomic_read(&dev->bytes_rendered));
41879 + atomic_read_unchecked(&dev->bytes_rendered));
41880 }
41881
41882 static ssize_t metrics_bytes_identical_show(struct device *fbdev,
41883 @@ -1381,7 +1381,7 @@ static ssize_t metrics_bytes_identical_show(struct device *fbdev,
41884 struct fb_info *fb_info = dev_get_drvdata(fbdev);
41885 struct dlfb_data *dev = fb_info->par;
41886 return snprintf(buf, PAGE_SIZE, "%u\n",
41887 - atomic_read(&dev->bytes_identical));
41888 + atomic_read_unchecked(&dev->bytes_identical));
41889 }
41890
41891 static ssize_t metrics_bytes_sent_show(struct device *fbdev,
41892 @@ -1389,7 +1389,7 @@ static ssize_t metrics_bytes_sent_show(struct device *fbdev,
41893 struct fb_info *fb_info = dev_get_drvdata(fbdev);
41894 struct dlfb_data *dev = fb_info->par;
41895 return snprintf(buf, PAGE_SIZE, "%u\n",
41896 - atomic_read(&dev->bytes_sent));
41897 + atomic_read_unchecked(&dev->bytes_sent));
41898 }
41899
41900 static ssize_t metrics_cpu_kcycles_used_show(struct device *fbdev,
41901 @@ -1397,7 +1397,7 @@ static ssize_t metrics_cpu_kcycles_used_show(struct device *fbdev,
41902 struct fb_info *fb_info = dev_get_drvdata(fbdev);
41903 struct dlfb_data *dev = fb_info->par;
41904 return snprintf(buf, PAGE_SIZE, "%u\n",
41905 - atomic_read(&dev->cpu_kcycles_used));
41906 + atomic_read_unchecked(&dev->cpu_kcycles_used));
41907 }
41908
41909 static ssize_t edid_show(
41910 @@ -1457,10 +1457,10 @@ static ssize_t metrics_reset_store(struct device *fbdev,
41911 struct fb_info *fb_info = dev_get_drvdata(fbdev);
41912 struct dlfb_data *dev = fb_info->par;
41913
41914 - atomic_set(&dev->bytes_rendered, 0);
41915 - atomic_set(&dev->bytes_identical, 0);
41916 - atomic_set(&dev->bytes_sent, 0);
41917 - atomic_set(&dev->cpu_kcycles_used, 0);
41918 + atomic_set_unchecked(&dev->bytes_rendered, 0);
41919 + atomic_set_unchecked(&dev->bytes_identical, 0);
41920 + atomic_set_unchecked(&dev->bytes_sent, 0);
41921 + atomic_set_unchecked(&dev->cpu_kcycles_used, 0);
41922
41923 return count;
41924 }
41925 diff --git a/drivers/video/uvesafb.c b/drivers/video/uvesafb.c
41926 index b0e2a42..e2df3ad 100644
41927 --- a/drivers/video/uvesafb.c
41928 +++ b/drivers/video/uvesafb.c
41929 @@ -19,6 +19,7 @@
41930 #include <linux/io.h>
41931 #include <linux/mutex.h>
41932 #include <linux/slab.h>
41933 +#include <linux/moduleloader.h>
41934 #include <video/edid.h>
41935 #include <video/uvesafb.h>
41936 #ifdef CONFIG_X86
41937 @@ -569,10 +570,32 @@ static int __devinit uvesafb_vbe_getpmi(struct uvesafb_ktask *task,
41938 if ((task->t.regs.eax & 0xffff) != 0x4f || task->t.regs.es < 0xc000) {
41939 par->pmi_setpal = par->ypan = 0;
41940 } else {
41941 +
41942 +#ifdef CONFIG_PAX_KERNEXEC
41943 +#ifdef CONFIG_MODULES
41944 + par->pmi_code = module_alloc_exec((u16)task->t.regs.ecx);
41945 +#endif
41946 + if (!par->pmi_code) {
41947 + par->pmi_setpal = par->ypan = 0;
41948 + return 0;
41949 + }
41950 +#endif
41951 +
41952 par->pmi_base = (u16 *)phys_to_virt(((u32)task->t.regs.es << 4)
41953 + task->t.regs.edi);
41954 +
41955 +#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
41956 + pax_open_kernel();
41957 + memcpy(par->pmi_code, par->pmi_base, (u16)task->t.regs.ecx);
41958 + pax_close_kernel();
41959 +
41960 + par->pmi_start = ktva_ktla(par->pmi_code + par->pmi_base[1]);
41961 + par->pmi_pal = ktva_ktla(par->pmi_code + par->pmi_base[2]);
41962 +#else
41963 par->pmi_start = (u8 *)par->pmi_base + par->pmi_base[1];
41964 par->pmi_pal = (u8 *)par->pmi_base + par->pmi_base[2];
41965 +#endif
41966 +
41967 printk(KERN_INFO "uvesafb: protected mode interface info at "
41968 "%04x:%04x\n",
41969 (u16)task->t.regs.es, (u16)task->t.regs.edi);
41970 @@ -816,13 +839,14 @@ static int __devinit uvesafb_vbe_init(struct fb_info *info)
41971 par->ypan = ypan;
41972
41973 if (par->pmi_setpal || par->ypan) {
41974 +#if !defined(CONFIG_MODULES) || !defined(CONFIG_PAX_KERNEXEC)
41975 if (__supported_pte_mask & _PAGE_NX) {
41976 par->pmi_setpal = par->ypan = 0;
41977 printk(KERN_WARNING "uvesafb: NX protection is actively."
41978 "We have better not to use the PMI.\n");
41979 - } else {
41980 + } else
41981 +#endif
41982 uvesafb_vbe_getpmi(task, par);
41983 - }
41984 }
41985 #else
41986 /* The protected mode interface is not available on non-x86. */
41987 @@ -1836,6 +1860,11 @@ out:
41988 if (par->vbe_modes)
41989 kfree(par->vbe_modes);
41990
41991 +#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
41992 + if (par->pmi_code)
41993 + module_free_exec(NULL, par->pmi_code);
41994 +#endif
41995 +
41996 framebuffer_release(info);
41997 return err;
41998 }
41999 @@ -1862,6 +1891,12 @@ static int uvesafb_remove(struct platform_device *dev)
42000 kfree(par->vbe_state_orig);
42001 if (par->vbe_state_saved)
42002 kfree(par->vbe_state_saved);
42003 +
42004 +#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
42005 + if (par->pmi_code)
42006 + module_free_exec(NULL, par->pmi_code);
42007 +#endif
42008 +
42009 }
42010
42011 framebuffer_release(info);
42012 diff --git a/drivers/video/vesafb.c b/drivers/video/vesafb.c
42013 index 501b340..86bd4cf 100644
42014 --- a/drivers/video/vesafb.c
42015 +++ b/drivers/video/vesafb.c
42016 @@ -9,6 +9,7 @@
42017 */
42018
42019 #include <linux/module.h>
42020 +#include <linux/moduleloader.h>
42021 #include <linux/kernel.h>
42022 #include <linux/errno.h>
42023 #include <linux/string.h>
42024 @@ -52,8 +53,8 @@ static int vram_remap __initdata; /* Set amount of memory to be used */
42025 static int vram_total __initdata; /* Set total amount of memory */
42026 static int pmi_setpal __read_mostly = 1; /* pmi for palette changes ??? */
42027 static int ypan __read_mostly; /* 0..nothing, 1..ypan, 2..ywrap */
42028 -static void (*pmi_start)(void) __read_mostly;
42029 -static void (*pmi_pal) (void) __read_mostly;
42030 +static void (*pmi_start)(void) __read_only;
42031 +static void (*pmi_pal) (void) __read_only;
42032 static int depth __read_mostly;
42033 static int vga_compat __read_mostly;
42034 /* --------------------------------------------------------------------- */
42035 @@ -233,6 +234,7 @@ static int __init vesafb_probe(struct platform_device *dev)
42036 unsigned int size_vmode;
42037 unsigned int size_remap;
42038 unsigned int size_total;
42039 + void *pmi_code = NULL;
42040
42041 if (screen_info.orig_video_isVGA != VIDEO_TYPE_VLFB)
42042 return -ENODEV;
42043 @@ -275,10 +277,6 @@ static int __init vesafb_probe(struct platform_device *dev)
42044 size_remap = size_total;
42045 vesafb_fix.smem_len = size_remap;
42046
42047 -#ifndef __i386__
42048 - screen_info.vesapm_seg = 0;
42049 -#endif
42050 -
42051 if (!request_mem_region(vesafb_fix.smem_start, size_total, "vesafb")) {
42052 printk(KERN_WARNING
42053 "vesafb: cannot reserve video memory at 0x%lx\n",
42054 @@ -307,9 +305,21 @@ static int __init vesafb_probe(struct platform_device *dev)
42055 printk(KERN_INFO "vesafb: mode is %dx%dx%d, linelength=%d, pages=%d\n",
42056 vesafb_defined.xres, vesafb_defined.yres, vesafb_defined.bits_per_pixel, vesafb_fix.line_length, screen_info.pages);
42057
42058 +#ifdef __i386__
42059 +
42060 +#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
42061 + pmi_code = module_alloc_exec(screen_info.vesapm_size);
42062 + if (!pmi_code)
42063 +#elif !defined(CONFIG_PAX_KERNEXEC)
42064 + if (0)
42065 +#endif
42066 +
42067 +#endif
42068 + screen_info.vesapm_seg = 0;
42069 +
42070 if (screen_info.vesapm_seg) {
42071 - printk(KERN_INFO "vesafb: protected mode interface info at %04x:%04x\n",
42072 - screen_info.vesapm_seg,screen_info.vesapm_off);
42073 + printk(KERN_INFO "vesafb: protected mode interface info at %04x:%04x %04x bytes\n",
42074 + screen_info.vesapm_seg,screen_info.vesapm_off,screen_info.vesapm_size);
42075 }
42076
42077 if (screen_info.vesapm_seg < 0xc000)
42078 @@ -317,9 +327,25 @@ static int __init vesafb_probe(struct platform_device *dev)
42079
42080 if (ypan || pmi_setpal) {
42081 unsigned short *pmi_base;
42082 +
42083 pmi_base = (unsigned short*)phys_to_virt(((unsigned long)screen_info.vesapm_seg << 4) + screen_info.vesapm_off);
42084 - pmi_start = (void*)((char*)pmi_base + pmi_base[1]);
42085 - pmi_pal = (void*)((char*)pmi_base + pmi_base[2]);
42086 +
42087 +#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
42088 + pax_open_kernel();
42089 + memcpy(pmi_code, pmi_base, screen_info.vesapm_size);
42090 +#else
42091 + pmi_code = pmi_base;
42092 +#endif
42093 +
42094 + pmi_start = (void*)((char*)pmi_code + pmi_base[1]);
42095 + pmi_pal = (void*)((char*)pmi_code + pmi_base[2]);
42096 +
42097 +#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
42098 + pmi_start = ktva_ktla(pmi_start);
42099 + pmi_pal = ktva_ktla(pmi_pal);
42100 + pax_close_kernel();
42101 +#endif
42102 +
42103 printk(KERN_INFO "vesafb: pmi: set display start = %p, set palette = %p\n",pmi_start,pmi_pal);
42104 if (pmi_base[3]) {
42105 printk(KERN_INFO "vesafb: pmi: ports = ");
42106 @@ -488,6 +514,11 @@ static int __init vesafb_probe(struct platform_device *dev)
42107 info->node, info->fix.id);
42108 return 0;
42109 err:
42110 +
42111 +#if defined(__i386__) && defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
42112 + module_free_exec(NULL, pmi_code);
42113 +#endif
42114 +
42115 if (info->screen_base)
42116 iounmap(info->screen_base);
42117 framebuffer_release(info);
42118 diff --git a/drivers/video/via/via_clock.h b/drivers/video/via/via_clock.h
42119 index 88714ae..16c2e11 100644
42120 --- a/drivers/video/via/via_clock.h
42121 +++ b/drivers/video/via/via_clock.h
42122 @@ -56,7 +56,7 @@ struct via_clock {
42123
42124 void (*set_engine_pll_state)(u8 state);
42125 void (*set_engine_pll)(struct via_pll_config config);
42126 -};
42127 +} __no_const;
42128
42129
42130 static inline u32 get_pll_internal_frequency(u32 ref_freq,
42131 diff --git a/drivers/xen/xen-pciback/conf_space.h b/drivers/xen/xen-pciback/conf_space.h
42132 index e56c934..fc22f4b 100644
42133 --- a/drivers/xen/xen-pciback/conf_space.h
42134 +++ b/drivers/xen/xen-pciback/conf_space.h
42135 @@ -44,15 +44,15 @@ struct config_field {
42136 struct {
42137 conf_dword_write write;
42138 conf_dword_read read;
42139 - } dw;
42140 + } __no_const dw;
42141 struct {
42142 conf_word_write write;
42143 conf_word_read read;
42144 - } w;
42145 + } __no_const w;
42146 struct {
42147 conf_byte_write write;
42148 conf_byte_read read;
42149 - } b;
42150 + } __no_const b;
42151 } u;
42152 struct list_head list;
42153 };
42154 diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c
42155 index 57ccb75..f6d05f8 100644
42156 --- a/fs/9p/vfs_inode.c
42157 +++ b/fs/9p/vfs_inode.c
42158 @@ -1303,7 +1303,7 @@ static void *v9fs_vfs_follow_link(struct dentry *dentry, struct nameidata *nd)
42159 void
42160 v9fs_vfs_put_link(struct dentry *dentry, struct nameidata *nd, void *p)
42161 {
42162 - char *s = nd_get_link(nd);
42163 + const char *s = nd_get_link(nd);
42164
42165 p9_debug(P9_DEBUG_VFS, " %s %s\n",
42166 dentry->d_name.name, IS_ERR(s) ? "<error>" : s);
42167 diff --git a/fs/Kconfig.binfmt b/fs/Kconfig.binfmt
42168 index 0225742..1cd4732 100644
42169 --- a/fs/Kconfig.binfmt
42170 +++ b/fs/Kconfig.binfmt
42171 @@ -89,7 +89,7 @@ config HAVE_AOUT
42172
42173 config BINFMT_AOUT
42174 tristate "Kernel support for a.out and ECOFF binaries"
42175 - depends on HAVE_AOUT
42176 + depends on HAVE_AOUT && BROKEN
42177 ---help---
42178 A.out (Assembler.OUTput) is a set of formats for libraries and
42179 executables used in the earliest versions of UNIX. Linux used
42180 diff --git a/fs/aio.c b/fs/aio.c
42181 index 55c4c76..11aee6f 100644
42182 --- a/fs/aio.c
42183 +++ b/fs/aio.c
42184 @@ -118,7 +118,7 @@ static int aio_setup_ring(struct kioctx *ctx)
42185 size += sizeof(struct io_event) * nr_events;
42186 nr_pages = (size + PAGE_SIZE-1) >> PAGE_SHIFT;
42187
42188 - if (nr_pages < 0)
42189 + if (nr_pages <= 0)
42190 return -EINVAL;
42191
42192 nr_events = (PAGE_SIZE * nr_pages - sizeof(struct aio_ring)) / sizeof(struct io_event);
42193 @@ -1440,18 +1440,19 @@ static ssize_t aio_fsync(struct kiocb *iocb)
42194 static ssize_t aio_setup_vectored_rw(int type, struct kiocb *kiocb, bool compat)
42195 {
42196 ssize_t ret;
42197 + struct iovec iovstack;
42198
42199 #ifdef CONFIG_COMPAT
42200 if (compat)
42201 ret = compat_rw_copy_check_uvector(type,
42202 (struct compat_iovec __user *)kiocb->ki_buf,
42203 - kiocb->ki_nbytes, 1, &kiocb->ki_inline_vec,
42204 + kiocb->ki_nbytes, 1, &iovstack,
42205 &kiocb->ki_iovec);
42206 else
42207 #endif
42208 ret = rw_copy_check_uvector(type,
42209 (struct iovec __user *)kiocb->ki_buf,
42210 - kiocb->ki_nbytes, 1, &kiocb->ki_inline_vec,
42211 + kiocb->ki_nbytes, 1, &iovstack,
42212 &kiocb->ki_iovec);
42213 if (ret < 0)
42214 goto out;
42215 @@ -1460,6 +1461,10 @@ static ssize_t aio_setup_vectored_rw(int type, struct kiocb *kiocb, bool compat)
42216 if (ret < 0)
42217 goto out;
42218
42219 + if (kiocb->ki_iovec == &iovstack) {
42220 + kiocb->ki_inline_vec = iovstack;
42221 + kiocb->ki_iovec = &kiocb->ki_inline_vec;
42222 + }
42223 kiocb->ki_nr_segs = kiocb->ki_nbytes;
42224 kiocb->ki_cur_seg = 0;
42225 /* ki_nbytes/left now reflect bytes instead of segs */
42226 diff --git a/fs/attr.c b/fs/attr.c
42227 index 0da9095..1386693 100644
42228 --- a/fs/attr.c
42229 +++ b/fs/attr.c
42230 @@ -99,6 +99,7 @@ int inode_newsize_ok(const struct inode *inode, loff_t offset)
42231 unsigned long limit;
42232
42233 limit = rlimit(RLIMIT_FSIZE);
42234 + gr_learn_resource(current, RLIMIT_FSIZE, (unsigned long)offset, 1);
42235 if (limit != RLIM_INFINITY && offset > limit)
42236 goto out_sig;
42237 if (offset > inode->i_sb->s_maxbytes)
42238 diff --git a/fs/autofs4/waitq.c b/fs/autofs4/waitq.c
42239 index da8876d..9f3e6d8 100644
42240 --- a/fs/autofs4/waitq.c
42241 +++ b/fs/autofs4/waitq.c
42242 @@ -61,7 +61,7 @@ static int autofs4_write(struct autofs_sb_info *sbi,
42243 {
42244 unsigned long sigpipe, flags;
42245 mm_segment_t fs;
42246 - const char *data = (const char *)addr;
42247 + const char __user *data = (const char __force_user *)addr;
42248 ssize_t wr = 0;
42249
42250 sigpipe = sigismember(&current->pending.signal, SIGPIPE);
42251 diff --git a/fs/befs/linuxvfs.c b/fs/befs/linuxvfs.c
42252 index e18da23..affc30e 100644
42253 --- a/fs/befs/linuxvfs.c
42254 +++ b/fs/befs/linuxvfs.c
42255 @@ -502,7 +502,7 @@ static void befs_put_link(struct dentry *dentry, struct nameidata *nd, void *p)
42256 {
42257 befs_inode_info *befs_ino = BEFS_I(dentry->d_inode);
42258 if (befs_ino->i_flags & BEFS_LONG_SYMLINK) {
42259 - char *link = nd_get_link(nd);
42260 + const char *link = nd_get_link(nd);
42261 if (!IS_ERR(link))
42262 kfree(link);
42263 }
42264 diff --git a/fs/binfmt_aout.c b/fs/binfmt_aout.c
42265 index d146e18..12d1bd1 100644
42266 --- a/fs/binfmt_aout.c
42267 +++ b/fs/binfmt_aout.c
42268 @@ -16,6 +16,7 @@
42269 #include <linux/string.h>
42270 #include <linux/fs.h>
42271 #include <linux/file.h>
42272 +#include <linux/security.h>
42273 #include <linux/stat.h>
42274 #include <linux/fcntl.h>
42275 #include <linux/ptrace.h>
42276 @@ -83,6 +84,8 @@ static int aout_core_dump(struct coredump_params *cprm)
42277 #endif
42278 # define START_STACK(u) ((void __user *)u.start_stack)
42279
42280 + memset(&dump, 0, sizeof(dump));
42281 +
42282 fs = get_fs();
42283 set_fs(KERNEL_DS);
42284 has_dumped = 1;
42285 @@ -94,10 +97,12 @@ static int aout_core_dump(struct coredump_params *cprm)
42286
42287 /* If the size of the dump file exceeds the rlimit, then see what would happen
42288 if we wrote the stack, but not the data area. */
42289 + gr_learn_resource(current, RLIMIT_CORE, (dump.u_dsize + dump.u_ssize+1) * PAGE_SIZE, 1);
42290 if ((dump.u_dsize + dump.u_ssize+1) * PAGE_SIZE > cprm->limit)
42291 dump.u_dsize = 0;
42292
42293 /* Make sure we have enough room to write the stack and data areas. */
42294 + gr_learn_resource(current, RLIMIT_CORE, (dump.u_ssize + 1) * PAGE_SIZE, 1);
42295 if ((dump.u_ssize + 1) * PAGE_SIZE > cprm->limit)
42296 dump.u_ssize = 0;
42297
42298 @@ -231,6 +236,8 @@ static int load_aout_binary(struct linux_binprm * bprm, struct pt_regs * regs)
42299 rlim = rlimit(RLIMIT_DATA);
42300 if (rlim >= RLIM_INFINITY)
42301 rlim = ~0;
42302 +
42303 + gr_learn_resource(current, RLIMIT_DATA, ex.a_data + ex.a_bss, 1);
42304 if (ex.a_data + ex.a_bss > rlim)
42305 return -ENOMEM;
42306
42307 @@ -265,6 +272,27 @@ static int load_aout_binary(struct linux_binprm * bprm, struct pt_regs * regs)
42308
42309 install_exec_creds(bprm);
42310
42311 +#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)
42312 + current->mm->pax_flags = 0UL;
42313 +#endif
42314 +
42315 +#ifdef CONFIG_PAX_PAGEEXEC
42316 + if (!(N_FLAGS(ex) & F_PAX_PAGEEXEC)) {
42317 + current->mm->pax_flags |= MF_PAX_PAGEEXEC;
42318 +
42319 +#ifdef CONFIG_PAX_EMUTRAMP
42320 + if (N_FLAGS(ex) & F_PAX_EMUTRAMP)
42321 + current->mm->pax_flags |= MF_PAX_EMUTRAMP;
42322 +#endif
42323 +
42324 +#ifdef CONFIG_PAX_MPROTECT
42325 + if (!(N_FLAGS(ex) & F_PAX_MPROTECT))
42326 + current->mm->pax_flags |= MF_PAX_MPROTECT;
42327 +#endif
42328 +
42329 + }
42330 +#endif
42331 +
42332 if (N_MAGIC(ex) == OMAGIC) {
42333 unsigned long text_addr, map_size;
42334 loff_t pos;
42335 @@ -330,7 +358,7 @@ static int load_aout_binary(struct linux_binprm * bprm, struct pt_regs * regs)
42336 }
42337
42338 error = vm_mmap(bprm->file, N_DATADDR(ex), ex.a_data,
42339 - PROT_READ | PROT_WRITE | PROT_EXEC,
42340 + PROT_READ | PROT_WRITE,
42341 MAP_FIXED | MAP_PRIVATE | MAP_DENYWRITE | MAP_EXECUTABLE,
42342 fd_offset + ex.a_text);
42343 if (error != N_DATADDR(ex)) {
42344 diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
42345 index 1b52956..271266e 100644
42346 --- a/fs/binfmt_elf.c
42347 +++ b/fs/binfmt_elf.c
42348 @@ -32,6 +32,7 @@
42349 #include <linux/elf.h>
42350 #include <linux/utsname.h>
42351 #include <linux/coredump.h>
42352 +#include <linux/xattr.h>
42353 #include <asm/uaccess.h>
42354 #include <asm/param.h>
42355 #include <asm/page.h>
42356 @@ -52,6 +53,10 @@ static int elf_core_dump(struct coredump_params *cprm);
42357 #define elf_core_dump NULL
42358 #endif
42359
42360 +#ifdef CONFIG_PAX_MPROTECT
42361 +static void elf_handle_mprotect(struct vm_area_struct *vma, unsigned long newflags);
42362 +#endif
42363 +
42364 #if ELF_EXEC_PAGESIZE > PAGE_SIZE
42365 #define ELF_MIN_ALIGN ELF_EXEC_PAGESIZE
42366 #else
42367 @@ -71,6 +76,11 @@ static struct linux_binfmt elf_format = {
42368 .load_binary = load_elf_binary,
42369 .load_shlib = load_elf_library,
42370 .core_dump = elf_core_dump,
42371 +
42372 +#ifdef CONFIG_PAX_MPROTECT
42373 + .handle_mprotect= elf_handle_mprotect,
42374 +#endif
42375 +
42376 .min_coredump = ELF_EXEC_PAGESIZE,
42377 };
42378
42379 @@ -78,6 +88,8 @@ static struct linux_binfmt elf_format = {
42380
42381 static int set_brk(unsigned long start, unsigned long end)
42382 {
42383 + unsigned long e = end;
42384 +
42385 start = ELF_PAGEALIGN(start);
42386 end = ELF_PAGEALIGN(end);
42387 if (end > start) {
42388 @@ -86,7 +98,7 @@ static int set_brk(unsigned long start, unsigned long end)
42389 if (BAD_ADDR(addr))
42390 return addr;
42391 }
42392 - current->mm->start_brk = current->mm->brk = end;
42393 + current->mm->start_brk = current->mm->brk = e;
42394 return 0;
42395 }
42396
42397 @@ -147,12 +159,13 @@ create_elf_tables(struct linux_binprm *bprm, struct elfhdr *exec,
42398 elf_addr_t __user *u_rand_bytes;
42399 const char *k_platform = ELF_PLATFORM;
42400 const char *k_base_platform = ELF_BASE_PLATFORM;
42401 - unsigned char k_rand_bytes[16];
42402 + u32 k_rand_bytes[4];
42403 int items;
42404 elf_addr_t *elf_info;
42405 int ei_index = 0;
42406 const struct cred *cred = current_cred();
42407 struct vm_area_struct *vma;
42408 + unsigned long saved_auxv[AT_VECTOR_SIZE];
42409
42410 /*
42411 * In some cases (e.g. Hyper-Threading), we want to avoid L1
42412 @@ -194,8 +207,12 @@ create_elf_tables(struct linux_binprm *bprm, struct elfhdr *exec,
42413 * Generate 16 random bytes for userspace PRNG seeding.
42414 */
42415 get_random_bytes(k_rand_bytes, sizeof(k_rand_bytes));
42416 - u_rand_bytes = (elf_addr_t __user *)
42417 - STACK_ALLOC(p, sizeof(k_rand_bytes));
42418 + srandom32(k_rand_bytes[0] ^ random32());
42419 + srandom32(k_rand_bytes[1] ^ random32());
42420 + srandom32(k_rand_bytes[2] ^ random32());
42421 + srandom32(k_rand_bytes[3] ^ random32());
42422 + p = STACK_ROUND(p, sizeof(k_rand_bytes));
42423 + u_rand_bytes = (elf_addr_t __user *) p;
42424 if (__copy_to_user(u_rand_bytes, k_rand_bytes, sizeof(k_rand_bytes)))
42425 return -EFAULT;
42426
42427 @@ -307,9 +324,11 @@ create_elf_tables(struct linux_binprm *bprm, struct elfhdr *exec,
42428 return -EFAULT;
42429 current->mm->env_end = p;
42430
42431 + memcpy(saved_auxv, elf_info, ei_index * sizeof(elf_addr_t));
42432 +
42433 /* Put the elf_info on the stack in the right place. */
42434 sp = (elf_addr_t __user *)envp + 1;
42435 - if (copy_to_user(sp, elf_info, ei_index * sizeof(elf_addr_t)))
42436 + if (copy_to_user(sp, saved_auxv, ei_index * sizeof(elf_addr_t)))
42437 return -EFAULT;
42438 return 0;
42439 }
42440 @@ -378,10 +397,10 @@ static unsigned long load_elf_interp(struct elfhdr *interp_elf_ex,
42441 {
42442 struct elf_phdr *elf_phdata;
42443 struct elf_phdr *eppnt;
42444 - unsigned long load_addr = 0;
42445 + unsigned long load_addr = 0, pax_task_size = TASK_SIZE;
42446 int load_addr_set = 0;
42447 unsigned long last_bss = 0, elf_bss = 0;
42448 - unsigned long error = ~0UL;
42449 + unsigned long error = -EINVAL;
42450 unsigned long total_size;
42451 int retval, i, size;
42452
42453 @@ -427,6 +446,11 @@ static unsigned long load_elf_interp(struct elfhdr *interp_elf_ex,
42454 goto out_close;
42455 }
42456
42457 +#ifdef CONFIG_PAX_SEGMEXEC
42458 + if (current->mm->pax_flags & MF_PAX_SEGMEXEC)
42459 + pax_task_size = SEGMEXEC_TASK_SIZE;
42460 +#endif
42461 +
42462 eppnt = elf_phdata;
42463 for (i = 0; i < interp_elf_ex->e_phnum; i++, eppnt++) {
42464 if (eppnt->p_type == PT_LOAD) {
42465 @@ -470,8 +494,8 @@ static unsigned long load_elf_interp(struct elfhdr *interp_elf_ex,
42466 k = load_addr + eppnt->p_vaddr;
42467 if (BAD_ADDR(k) ||
42468 eppnt->p_filesz > eppnt->p_memsz ||
42469 - eppnt->p_memsz > TASK_SIZE ||
42470 - TASK_SIZE - eppnt->p_memsz < k) {
42471 + eppnt->p_memsz > pax_task_size ||
42472 + pax_task_size - eppnt->p_memsz < k) {
42473 error = -ENOMEM;
42474 goto out_close;
42475 }
42476 @@ -523,6 +547,311 @@ out:
42477 return error;
42478 }
42479
42480 +#ifdef CONFIG_PAX_PT_PAX_FLAGS
42481 +#ifdef CONFIG_PAX_SOFTMODE
42482 +static unsigned long pax_parse_pt_pax_softmode(const struct elf_phdr * const elf_phdata)
42483 +{
42484 + unsigned long pax_flags = 0UL;
42485 +
42486 +#ifdef CONFIG_PAX_PAGEEXEC
42487 + if (elf_phdata->p_flags & PF_PAGEEXEC)
42488 + pax_flags |= MF_PAX_PAGEEXEC;
42489 +#endif
42490 +
42491 +#ifdef CONFIG_PAX_SEGMEXEC
42492 + if (elf_phdata->p_flags & PF_SEGMEXEC)
42493 + pax_flags |= MF_PAX_SEGMEXEC;
42494 +#endif
42495 +
42496 +#ifdef CONFIG_PAX_EMUTRAMP
42497 + if (elf_phdata->p_flags & PF_EMUTRAMP)
42498 + pax_flags |= MF_PAX_EMUTRAMP;
42499 +#endif
42500 +
42501 +#ifdef CONFIG_PAX_MPROTECT
42502 + if (elf_phdata->p_flags & PF_MPROTECT)
42503 + pax_flags |= MF_PAX_MPROTECT;
42504 +#endif
42505 +
42506 +#if defined(CONFIG_PAX_RANDMMAP) || defined(CONFIG_PAX_RANDUSTACK)
42507 + if (randomize_va_space && (elf_phdata->p_flags & PF_RANDMMAP))
42508 + pax_flags |= MF_PAX_RANDMMAP;
42509 +#endif
42510 +
42511 + return pax_flags;
42512 +}
42513 +#endif
42514 +
42515 +static unsigned long pax_parse_pt_pax_hardmode(const struct elf_phdr * const elf_phdata)
42516 +{
42517 + unsigned long pax_flags = 0UL;
42518 +
42519 +#ifdef CONFIG_PAX_PAGEEXEC
42520 + if (!(elf_phdata->p_flags & PF_NOPAGEEXEC))
42521 + pax_flags |= MF_PAX_PAGEEXEC;
42522 +#endif
42523 +
42524 +#ifdef CONFIG_PAX_SEGMEXEC
42525 + if (!(elf_phdata->p_flags & PF_NOSEGMEXEC))
42526 + pax_flags |= MF_PAX_SEGMEXEC;
42527 +#endif
42528 +
42529 +#ifdef CONFIG_PAX_EMUTRAMP
42530 + if (!(elf_phdata->p_flags & PF_NOEMUTRAMP))
42531 + pax_flags |= MF_PAX_EMUTRAMP;
42532 +#endif
42533 +
42534 +#ifdef CONFIG_PAX_MPROTECT
42535 + if (!(elf_phdata->p_flags & PF_NOMPROTECT))
42536 + pax_flags |= MF_PAX_MPROTECT;
42537 +#endif
42538 +
42539 +#if defined(CONFIG_PAX_RANDMMAP) || defined(CONFIG_PAX_RANDUSTACK)
42540 + if (randomize_va_space && !(elf_phdata->p_flags & PF_NORANDMMAP))
42541 + pax_flags |= MF_PAX_RANDMMAP;
42542 +#endif
42543 +
42544 + return pax_flags;
42545 +}
42546 +#endif
42547 +
42548 +#ifdef CONFIG_PAX_XATTR_PAX_FLAGS
42549 +#ifdef CONFIG_PAX_SOFTMODE
42550 +static unsigned long pax_parse_xattr_pax_softmode(unsigned long pax_flags_softmode)
42551 +{
42552 + unsigned long pax_flags = 0UL;
42553 +
42554 +#ifdef CONFIG_PAX_PAGEEXEC
42555 + if (pax_flags_softmode & MF_PAX_PAGEEXEC)
42556 + pax_flags |= MF_PAX_PAGEEXEC;
42557 +#endif
42558 +
42559 +#ifdef CONFIG_PAX_SEGMEXEC
42560 + if (pax_flags_softmode & MF_PAX_SEGMEXEC)
42561 + pax_flags |= MF_PAX_SEGMEXEC;
42562 +#endif
42563 +
42564 +#ifdef CONFIG_PAX_EMUTRAMP
42565 + if (pax_flags_softmode & MF_PAX_EMUTRAMP)
42566 + pax_flags |= MF_PAX_EMUTRAMP;
42567 +#endif
42568 +
42569 +#ifdef CONFIG_PAX_MPROTECT
42570 + if (pax_flags_softmode & MF_PAX_MPROTECT)
42571 + pax_flags |= MF_PAX_MPROTECT;
42572 +#endif
42573 +
42574 +#if defined(CONFIG_PAX_RANDMMAP) || defined(CONFIG_PAX_RANDUSTACK)
42575 + if (randomize_va_space && (pax_flags_softmode & MF_PAX_RANDMMAP))
42576 + pax_flags |= MF_PAX_RANDMMAP;
42577 +#endif
42578 +
42579 + return pax_flags;
42580 +}
42581 +#endif
42582 +
42583 +static unsigned long pax_parse_xattr_pax_hardmode(unsigned long pax_flags_hardmode)
42584 +{
42585 + unsigned long pax_flags = 0UL;
42586 +
42587 +#ifdef CONFIG_PAX_PAGEEXEC
42588 + if (!(pax_flags_hardmode & MF_PAX_PAGEEXEC))
42589 + pax_flags |= MF_PAX_PAGEEXEC;
42590 +#endif
42591 +
42592 +#ifdef CONFIG_PAX_SEGMEXEC
42593 + if (!(pax_flags_hardmode & MF_PAX_SEGMEXEC))
42594 + pax_flags |= MF_PAX_SEGMEXEC;
42595 +#endif
42596 +
42597 +#ifdef CONFIG_PAX_EMUTRAMP
42598 + if (!(pax_flags_hardmode & MF_PAX_EMUTRAMP))
42599 + pax_flags |= MF_PAX_EMUTRAMP;
42600 +#endif
42601 +
42602 +#ifdef CONFIG_PAX_MPROTECT
42603 + if (!(pax_flags_hardmode & MF_PAX_MPROTECT))
42604 + pax_flags |= MF_PAX_MPROTECT;
42605 +#endif
42606 +
42607 +#if defined(CONFIG_PAX_RANDMMAP) || defined(CONFIG_PAX_RANDUSTACK)
42608 + if (randomize_va_space && !(pax_flags_hardmode & MF_PAX_RANDMMAP))
42609 + pax_flags |= MF_PAX_RANDMMAP;
42610 +#endif
42611 +
42612 + return pax_flags;
42613 +}
42614 +#endif
42615 +
42616 +#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)
42617 +static unsigned long pax_parse_ei_pax(const struct elfhdr * const elf_ex)
42618 +{
42619 + unsigned long pax_flags = 0UL;
42620 +
42621 +#ifdef CONFIG_PAX_EI_PAX
42622 +
42623 +#ifdef CONFIG_PAX_PAGEEXEC
42624 + if (!(elf_ex->e_ident[EI_PAX] & EF_PAX_PAGEEXEC))
42625 + pax_flags |= MF_PAX_PAGEEXEC;
42626 +#endif
42627 +
42628 +#ifdef CONFIG_PAX_SEGMEXEC
42629 + if (!(elf_ex->e_ident[EI_PAX] & EF_PAX_SEGMEXEC))
42630 + pax_flags |= MF_PAX_SEGMEXEC;
42631 +#endif
42632 +
42633 +#ifdef CONFIG_PAX_EMUTRAMP
42634 + if ((pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) && (elf_ex->e_ident[EI_PAX] & EF_PAX_EMUTRAMP))
42635 + pax_flags |= MF_PAX_EMUTRAMP;
42636 +#endif
42637 +
42638 +#ifdef CONFIG_PAX_MPROTECT
42639 + if ((pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) && !(elf_ex->e_ident[EI_PAX] & EF_PAX_MPROTECT))
42640 + pax_flags |= MF_PAX_MPROTECT;
42641 +#endif
42642 +
42643 +#ifdef CONFIG_PAX_ASLR
42644 + if (randomize_va_space && !(elf_ex->e_ident[EI_PAX] & EF_PAX_RANDMMAP))
42645 + pax_flags |= MF_PAX_RANDMMAP;
42646 +#endif
42647 +
42648 +#else
42649 +
42650 +#ifdef CONFIG_PAX_PAGEEXEC
42651 + pax_flags |= MF_PAX_PAGEEXEC;
42652 +#endif
42653 +
42654 +#ifdef CONFIG_PAX_SEGMEXEC
42655 + pax_flags |= MF_PAX_SEGMEXEC;
42656 +#endif
42657 +
42658 +#ifdef CONFIG_PAX_MPROTECT
42659 + pax_flags |= MF_PAX_MPROTECT;
42660 +#endif
42661 +
42662 +#ifdef CONFIG_PAX_RANDMMAP
42663 + if (randomize_va_space)
42664 + pax_flags |= MF_PAX_RANDMMAP;
42665 +#endif
42666 +
42667 +#endif
42668 +
42669 + return pax_flags;
42670 +}
42671 +
42672 +static unsigned long pax_parse_pt_pax(const struct elfhdr * const elf_ex, const struct elf_phdr * const elf_phdata)
42673 +{
42674 +
42675 +#ifdef CONFIG_PAX_PT_PAX_FLAGS
42676 + unsigned long i;
42677 +
42678 + for (i = 0UL; i < elf_ex->e_phnum; i++)
42679 + if (elf_phdata[i].p_type == PT_PAX_FLAGS) {
42680 + if (((elf_phdata[i].p_flags & PF_PAGEEXEC) && (elf_phdata[i].p_flags & PF_NOPAGEEXEC)) ||
42681 + ((elf_phdata[i].p_flags & PF_SEGMEXEC) && (elf_phdata[i].p_flags & PF_NOSEGMEXEC)) ||
42682 + ((elf_phdata[i].p_flags & PF_EMUTRAMP) && (elf_phdata[i].p_flags & PF_NOEMUTRAMP)) ||
42683 + ((elf_phdata[i].p_flags & PF_MPROTECT) && (elf_phdata[i].p_flags & PF_NOMPROTECT)) ||
42684 + ((elf_phdata[i].p_flags & PF_RANDMMAP) && (elf_phdata[i].p_flags & PF_NORANDMMAP)))
42685 + return ~0UL;
42686 +
42687 +#ifdef CONFIG_PAX_SOFTMODE
42688 + if (pax_softmode)
42689 + return pax_parse_pt_pax_softmode(&elf_phdata[i]);
42690 + else
42691 +#endif
42692 +
42693 + return pax_parse_pt_pax_hardmode(&elf_phdata[i]);
42694 + break;
42695 + }
42696 +#endif
42697 +
42698 + return ~0UL;
42699 +}
42700 +
42701 +static unsigned long pax_parse_xattr_pax(struct file * const file)
42702 +{
42703 +
42704 +#ifdef CONFIG_PAX_XATTR_PAX_FLAGS
42705 + ssize_t xattr_size, i;
42706 + unsigned char xattr_value[5];
42707 + unsigned long pax_flags_hardmode = 0UL, pax_flags_softmode = 0UL;
42708 +
42709 + xattr_size = vfs_getxattr(file->f_path.dentry, XATTR_NAME_PAX_FLAGS, xattr_value, sizeof xattr_value);
42710 + if (xattr_size <= 0)
42711 + return ~0UL;
42712 +
42713 + for (i = 0; i < xattr_size; i++)
42714 + switch (xattr_value[i]) {
42715 + default:
42716 + return ~0UL;
42717 +
42718 +#define parse_flag(option1, option2, flag) \
42719 + case option1: \
42720 + pax_flags_hardmode |= MF_PAX_##flag; \
42721 + break; \
42722 + case option2: \
42723 + pax_flags_softmode |= MF_PAX_##flag; \
42724 + break;
42725 +
42726 + parse_flag('p', 'P', PAGEEXEC);
42727 + parse_flag('e', 'E', EMUTRAMP);
42728 + parse_flag('m', 'M', MPROTECT);
42729 + parse_flag('r', 'R', RANDMMAP);
42730 + parse_flag('s', 'S', SEGMEXEC);
42731 +
42732 +#undef parse_flag
42733 + }
42734 +
42735 + if (pax_flags_hardmode & pax_flags_softmode)
42736 + return ~0UL;
42737 +
42738 +#ifdef CONFIG_PAX_SOFTMODE
42739 + if (pax_softmode)
42740 + return pax_parse_xattr_pax_softmode(pax_flags_softmode);
42741 + else
42742 +#endif
42743 +
42744 + return pax_parse_xattr_pax_hardmode(pax_flags_hardmode);
42745 +#else
42746 + return ~0UL;
42747 +#endif
42748 +
42749 +}
42750 +
42751 +static long pax_parse_pax_flags(const struct elfhdr * const elf_ex, const struct elf_phdr * const elf_phdata, struct file * const file)
42752 +{
42753 + unsigned long pax_flags, pt_pax_flags, xattr_pax_flags;
42754 +
42755 + pax_flags = pax_parse_ei_pax(elf_ex);
42756 + pt_pax_flags = pax_parse_pt_pax(elf_ex, elf_phdata);
42757 + xattr_pax_flags = pax_parse_xattr_pax(file);
42758 +
42759 + if (pt_pax_flags == ~0UL)
42760 + pt_pax_flags = xattr_pax_flags;
42761 + else if (xattr_pax_flags == ~0UL)
42762 + xattr_pax_flags = pt_pax_flags;
42763 + if (pt_pax_flags != xattr_pax_flags)
42764 + return -EINVAL;
42765 + if (pt_pax_flags != ~0UL)
42766 + pax_flags = pt_pax_flags;
42767 +
42768 +#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_PAX_SEGMEXEC)
42769 + if ((pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) == (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) {
42770 + if ((__supported_pte_mask & _PAGE_NX))
42771 + pax_flags &= ~MF_PAX_SEGMEXEC;
42772 + else
42773 + pax_flags &= ~MF_PAX_PAGEEXEC;
42774 + }
42775 +#endif
42776 +
42777 + if (0 > pax_check_flags(&pax_flags))
42778 + return -EINVAL;
42779 +
42780 + current->mm->pax_flags = pax_flags;
42781 + return 0;
42782 +}
42783 +#endif
42784 +
42785 /*
42786 * These are the functions used to load ELF style executables and shared
42787 * libraries. There is no binary dependent code anywhere else.
42788 @@ -539,6 +868,11 @@ static unsigned long randomize_stack_top(unsigned long stack_top)
42789 {
42790 unsigned int random_variable = 0;
42791
42792 +#ifdef CONFIG_PAX_RANDUSTACK
42793 + if (randomize_va_space)
42794 + return stack_top - current->mm->delta_stack;
42795 +#endif
42796 +
42797 if ((current->flags & PF_RANDOMIZE) &&
42798 !(current->personality & ADDR_NO_RANDOMIZE)) {
42799 random_variable = get_random_int() & STACK_RND_MASK;
42800 @@ -557,7 +891,7 @@ static int load_elf_binary(struct linux_binprm *bprm, struct pt_regs *regs)
42801 unsigned long load_addr = 0, load_bias = 0;
42802 int load_addr_set = 0;
42803 char * elf_interpreter = NULL;
42804 - unsigned long error;
42805 + unsigned long error = 0;
42806 struct elf_phdr *elf_ppnt, *elf_phdata;
42807 unsigned long elf_bss, elf_brk;
42808 int retval, i;
42809 @@ -567,11 +901,11 @@ static int load_elf_binary(struct linux_binprm *bprm, struct pt_regs *regs)
42810 unsigned long start_code, end_code, start_data, end_data;
42811 unsigned long reloc_func_desc __maybe_unused = 0;
42812 int executable_stack = EXSTACK_DEFAULT;
42813 - unsigned long def_flags = 0;
42814 struct {
42815 struct elfhdr elf_ex;
42816 struct elfhdr interp_elf_ex;
42817 } *loc;
42818 + unsigned long pax_task_size = TASK_SIZE;
42819
42820 loc = kmalloc(sizeof(*loc), GFP_KERNEL);
42821 if (!loc) {
42822 @@ -707,11 +1041,81 @@ static int load_elf_binary(struct linux_binprm *bprm, struct pt_regs *regs)
42823 goto out_free_dentry;
42824
42825 /* OK, This is the point of no return */
42826 - current->mm->def_flags = def_flags;
42827 +
42828 +#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)
42829 + current->mm->pax_flags = 0UL;
42830 +#endif
42831 +
42832 +#ifdef CONFIG_PAX_DLRESOLVE
42833 + current->mm->call_dl_resolve = 0UL;
42834 +#endif
42835 +
42836 +#if defined(CONFIG_PPC32) && defined(CONFIG_PAX_EMUSIGRT)
42837 + current->mm->call_syscall = 0UL;
42838 +#endif
42839 +
42840 +#ifdef CONFIG_PAX_ASLR
42841 + current->mm->delta_mmap = 0UL;
42842 + current->mm->delta_stack = 0UL;
42843 +#endif
42844 +
42845 + current->mm->def_flags = 0;
42846 +
42847 +#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)
42848 + if (0 > pax_parse_pax_flags(&loc->elf_ex, elf_phdata, bprm->file)) {
42849 + send_sig(SIGKILL, current, 0);
42850 + goto out_free_dentry;
42851 + }
42852 +#endif
42853 +
42854 +#ifdef CONFIG_PAX_HAVE_ACL_FLAGS
42855 + pax_set_initial_flags(bprm);
42856 +#elif defined(CONFIG_PAX_HOOK_ACL_FLAGS)
42857 + if (pax_set_initial_flags_func)
42858 + (pax_set_initial_flags_func)(bprm);
42859 +#endif
42860 +
42861 +#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT
42862 + if ((current->mm->pax_flags & MF_PAX_PAGEEXEC) && !(__supported_pte_mask & _PAGE_NX)) {
42863 + current->mm->context.user_cs_limit = PAGE_SIZE;
42864 + current->mm->def_flags |= VM_PAGEEXEC;
42865 + }
42866 +#endif
42867 +
42868 +#ifdef CONFIG_PAX_SEGMEXEC
42869 + if (current->mm->pax_flags & MF_PAX_SEGMEXEC) {
42870 + current->mm->context.user_cs_base = SEGMEXEC_TASK_SIZE;
42871 + current->mm->context.user_cs_limit = TASK_SIZE-SEGMEXEC_TASK_SIZE;
42872 + pax_task_size = SEGMEXEC_TASK_SIZE;
42873 + current->mm->def_flags |= VM_NOHUGEPAGE;
42874 + }
42875 +#endif
42876 +
42877 +#if defined(CONFIG_ARCH_TRACK_EXEC_LIMIT) || defined(CONFIG_PAX_SEGMEXEC)
42878 + if (current->mm->pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) {
42879 + set_user_cs(current->mm->context.user_cs_base, current->mm->context.user_cs_limit, get_cpu());
42880 + put_cpu();
42881 + }
42882 +#endif
42883
42884 /* Do this immediately, since STACK_TOP as used in setup_arg_pages
42885 may depend on the personality. */
42886 SET_PERSONALITY(loc->elf_ex);
42887 +
42888 +#ifdef CONFIG_PAX_ASLR
42889 + if (current->mm->pax_flags & MF_PAX_RANDMMAP) {
42890 + current->mm->delta_mmap = (pax_get_random_long() & ((1UL << PAX_DELTA_MMAP_LEN)-1)) << PAGE_SHIFT;
42891 + current->mm->delta_stack = (pax_get_random_long() & ((1UL << PAX_DELTA_STACK_LEN)-1)) << PAGE_SHIFT;
42892 + }
42893 +#endif
42894 +
42895 +#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
42896 + if (current->mm->pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) {
42897 + executable_stack = EXSTACK_DISABLE_X;
42898 + current->personality &= ~READ_IMPLIES_EXEC;
42899 + } else
42900 +#endif
42901 +
42902 if (elf_read_implies_exec(loc->elf_ex, executable_stack))
42903 current->personality |= READ_IMPLIES_EXEC;
42904
42905 @@ -802,6 +1206,20 @@ static int load_elf_binary(struct linux_binprm *bprm, struct pt_regs *regs)
42906 #else
42907 load_bias = ELF_PAGESTART(ELF_ET_DYN_BASE - vaddr);
42908 #endif
42909 +
42910 +#ifdef CONFIG_PAX_RANDMMAP
42911 + /* PaX: randomize base address at the default exe base if requested */
42912 + if ((current->mm->pax_flags & MF_PAX_RANDMMAP) && elf_interpreter) {
42913 +#ifdef CONFIG_SPARC64
42914 + load_bias = (pax_get_random_long() & ((1UL << PAX_DELTA_MMAP_LEN) - 1)) << (PAGE_SHIFT+1);
42915 +#else
42916 + load_bias = (pax_get_random_long() & ((1UL << PAX_DELTA_MMAP_LEN) - 1)) << PAGE_SHIFT;
42917 +#endif
42918 + load_bias = ELF_PAGESTART(PAX_ELF_ET_DYN_BASE - vaddr + load_bias);
42919 + elf_flags |= MAP_FIXED;
42920 + }
42921 +#endif
42922 +
42923 }
42924
42925 error = elf_map(bprm->file, load_bias + vaddr, elf_ppnt,
42926 @@ -834,9 +1252,9 @@ static int load_elf_binary(struct linux_binprm *bprm, struct pt_regs *regs)
42927 * allowed task size. Note that p_filesz must always be
42928 * <= p_memsz so it is only necessary to check p_memsz.
42929 */
42930 - if (BAD_ADDR(k) || elf_ppnt->p_filesz > elf_ppnt->p_memsz ||
42931 - elf_ppnt->p_memsz > TASK_SIZE ||
42932 - TASK_SIZE - elf_ppnt->p_memsz < k) {
42933 + if (k >= pax_task_size || elf_ppnt->p_filesz > elf_ppnt->p_memsz ||
42934 + elf_ppnt->p_memsz > pax_task_size ||
42935 + pax_task_size - elf_ppnt->p_memsz < k) {
42936 /* set_brk can never work. Avoid overflows. */
42937 send_sig(SIGKILL, current, 0);
42938 retval = -EINVAL;
42939 @@ -875,11 +1293,41 @@ static int load_elf_binary(struct linux_binprm *bprm, struct pt_regs *regs)
42940 goto out_free_dentry;
42941 }
42942 if (likely(elf_bss != elf_brk) && unlikely(padzero(elf_bss))) {
42943 - send_sig(SIGSEGV, current, 0);
42944 - retval = -EFAULT; /* Nobody gets to see this, but.. */
42945 - goto out_free_dentry;
42946 + /*
42947 + * This bss-zeroing can fail if the ELF
42948 + * file specifies odd protections. So
42949 + * we don't check the return value
42950 + */
42951 }
42952
42953 +#ifdef CONFIG_PAX_RANDMMAP
42954 + if (current->mm->pax_flags & MF_PAX_RANDMMAP) {
42955 + unsigned long start, size;
42956 +
42957 + start = ELF_PAGEALIGN(elf_brk);
42958 + size = PAGE_SIZE + ((pax_get_random_long() & ((1UL << 22) - 1UL)) << 4);
42959 + down_read(&current->mm->mmap_sem);
42960 + retval = -ENOMEM;
42961 + if (!find_vma_intersection(current->mm, start, start + size + PAGE_SIZE)) {
42962 + unsigned long prot = PROT_NONE;
42963 +
42964 + up_read(&current->mm->mmap_sem);
42965 + current->mm->brk_gap = PAGE_ALIGN(size) >> PAGE_SHIFT;
42966 +// if (current->personality & ADDR_NO_RANDOMIZE)
42967 +// prot = PROT_READ;
42968 + start = vm_mmap(NULL, start, size, prot, MAP_ANONYMOUS | MAP_FIXED | MAP_PRIVATE, 0);
42969 + retval = IS_ERR_VALUE(start) ? start : 0;
42970 + } else
42971 + up_read(&current->mm->mmap_sem);
42972 + if (retval == 0)
42973 + retval = set_brk(start + size, start + size + PAGE_SIZE);
42974 + if (retval < 0) {
42975 + send_sig(SIGKILL, current, 0);
42976 + goto out_free_dentry;
42977 + }
42978 + }
42979 +#endif
42980 +
42981 if (elf_interpreter) {
42982 unsigned long uninitialized_var(interp_map_addr);
42983
42984 @@ -1107,7 +1555,7 @@ static bool always_dump_vma(struct vm_area_struct *vma)
42985 * Decide what to dump of a segment, part, all or none.
42986 */
42987 static unsigned long vma_dump_size(struct vm_area_struct *vma,
42988 - unsigned long mm_flags)
42989 + unsigned long mm_flags, long signr)
42990 {
42991 #define FILTER(type) (mm_flags & (1UL << MMF_DUMP_##type))
42992
42993 @@ -1144,7 +1592,7 @@ static unsigned long vma_dump_size(struct vm_area_struct *vma,
42994 if (vma->vm_file == NULL)
42995 return 0;
42996
42997 - if (FILTER(MAPPED_PRIVATE))
42998 + if (signr == SIGKILL || FILTER(MAPPED_PRIVATE))
42999 goto whole;
43000
43001 /*
43002 @@ -1366,9 +1814,9 @@ static void fill_auxv_note(struct memelfnote *note, struct mm_struct *mm)
43003 {
43004 elf_addr_t *auxv = (elf_addr_t *) mm->saved_auxv;
43005 int i = 0;
43006 - do
43007 + do {
43008 i += 2;
43009 - while (auxv[i - 2] != AT_NULL);
43010 + } while (auxv[i - 2] != AT_NULL);
43011 fill_note(note, "CORE", NT_AUXV, i * sizeof(elf_addr_t), auxv);
43012 }
43013
43014 @@ -1890,14 +2338,14 @@ static void fill_extnum_info(struct elfhdr *elf, struct elf_shdr *shdr4extnum,
43015 }
43016
43017 static size_t elf_core_vma_data_size(struct vm_area_struct *gate_vma,
43018 - unsigned long mm_flags)
43019 + struct coredump_params *cprm)
43020 {
43021 struct vm_area_struct *vma;
43022 size_t size = 0;
43023
43024 for (vma = first_vma(current, gate_vma); vma != NULL;
43025 vma = next_vma(vma, gate_vma))
43026 - size += vma_dump_size(vma, mm_flags);
43027 + size += vma_dump_size(vma, cprm->mm_flags, cprm->signr);
43028 return size;
43029 }
43030
43031 @@ -1991,7 +2439,7 @@ static int elf_core_dump(struct coredump_params *cprm)
43032
43033 dataoff = offset = roundup(offset, ELF_EXEC_PAGESIZE);
43034
43035 - offset += elf_core_vma_data_size(gate_vma, cprm->mm_flags);
43036 + offset += elf_core_vma_data_size(gate_vma, cprm);
43037 offset += elf_core_extra_data_size();
43038 e_shoff = offset;
43039
43040 @@ -2005,10 +2453,12 @@ static int elf_core_dump(struct coredump_params *cprm)
43041 offset = dataoff;
43042
43043 size += sizeof(*elf);
43044 + gr_learn_resource(current, RLIMIT_CORE, size, 1);
43045 if (size > cprm->limit || !dump_write(cprm->file, elf, sizeof(*elf)))
43046 goto end_coredump;
43047
43048 size += sizeof(*phdr4note);
43049 + gr_learn_resource(current, RLIMIT_CORE, size, 1);
43050 if (size > cprm->limit
43051 || !dump_write(cprm->file, phdr4note, sizeof(*phdr4note)))
43052 goto end_coredump;
43053 @@ -2022,7 +2472,7 @@ static int elf_core_dump(struct coredump_params *cprm)
43054 phdr.p_offset = offset;
43055 phdr.p_vaddr = vma->vm_start;
43056 phdr.p_paddr = 0;
43057 - phdr.p_filesz = vma_dump_size(vma, cprm->mm_flags);
43058 + phdr.p_filesz = vma_dump_size(vma, cprm->mm_flags, cprm->signr);
43059 phdr.p_memsz = vma->vm_end - vma->vm_start;
43060 offset += phdr.p_filesz;
43061 phdr.p_flags = vma->vm_flags & VM_READ ? PF_R : 0;
43062 @@ -2033,6 +2483,7 @@ static int elf_core_dump(struct coredump_params *cprm)
43063 phdr.p_align = ELF_EXEC_PAGESIZE;
43064
43065 size += sizeof(phdr);
43066 + gr_learn_resource(current, RLIMIT_CORE, size, 1);
43067 if (size > cprm->limit
43068 || !dump_write(cprm->file, &phdr, sizeof(phdr)))
43069 goto end_coredump;
43070 @@ -2057,7 +2508,7 @@ static int elf_core_dump(struct coredump_params *cprm)
43071 unsigned long addr;
43072 unsigned long end;
43073
43074 - end = vma->vm_start + vma_dump_size(vma, cprm->mm_flags);
43075 + end = vma->vm_start + vma_dump_size(vma, cprm->mm_flags, cprm->signr);
43076
43077 for (addr = vma->vm_start; addr < end; addr += PAGE_SIZE) {
43078 struct page *page;
43079 @@ -2066,6 +2517,7 @@ static int elf_core_dump(struct coredump_params *cprm)
43080 page = get_dump_page(addr);
43081 if (page) {
43082 void *kaddr = kmap(page);
43083 + gr_learn_resource(current, RLIMIT_CORE, size + PAGE_SIZE, 1);
43084 stop = ((size += PAGE_SIZE) > cprm->limit) ||
43085 !dump_write(cprm->file, kaddr,
43086 PAGE_SIZE);
43087 @@ -2083,6 +2535,7 @@ static int elf_core_dump(struct coredump_params *cprm)
43088
43089 if (e_phnum == PN_XNUM) {
43090 size += sizeof(*shdr4extnum);
43091 + gr_learn_resource(current, RLIMIT_CORE, size, 1);
43092 if (size > cprm->limit
43093 || !dump_write(cprm->file, shdr4extnum,
43094 sizeof(*shdr4extnum)))
43095 @@ -2103,6 +2556,97 @@ out:
43096
43097 #endif /* CONFIG_ELF_CORE */
43098
43099 +#ifdef CONFIG_PAX_MPROTECT
43100 +/* PaX: non-PIC ELF libraries need relocations on their executable segments
43101 + * therefore we'll grant them VM_MAYWRITE once during their life. Similarly
43102 + * we'll remove VM_MAYWRITE for good on RELRO segments.
43103 + *
43104 + * The checks favour ld-linux.so behaviour which operates on a per ELF segment
43105 + * basis because we want to allow the common case and not the special ones.
43106 + */
43107 +static void elf_handle_mprotect(struct vm_area_struct *vma, unsigned long newflags)
43108 +{
43109 + struct elfhdr elf_h;
43110 + struct elf_phdr elf_p;
43111 + unsigned long i;
43112 + unsigned long oldflags;
43113 + bool is_textrel_rw, is_textrel_rx, is_relro;
43114 +
43115 + if (!(vma->vm_mm->pax_flags & MF_PAX_MPROTECT))
43116 + return;
43117 +
43118 + oldflags = vma->vm_flags & (VM_MAYEXEC | VM_MAYWRITE | VM_MAYREAD | VM_EXEC | VM_WRITE | VM_READ);
43119 + newflags &= VM_MAYEXEC | VM_MAYWRITE | VM_MAYREAD | VM_EXEC | VM_WRITE | VM_READ;
43120 +
43121 +#ifdef CONFIG_PAX_ELFRELOCS
43122 + /* possible TEXTREL */
43123 + is_textrel_rw = vma->vm_file && !vma->anon_vma && oldflags == (VM_MAYEXEC | VM_MAYREAD | VM_EXEC | VM_READ) && newflags == (VM_WRITE | VM_READ);
43124 + is_textrel_rx = vma->vm_file && vma->anon_vma && oldflags == (VM_MAYEXEC | VM_MAYWRITE | VM_MAYREAD | VM_WRITE | VM_READ) && newflags == (VM_EXEC | VM_READ);
43125 +#else
43126 + is_textrel_rw = false;
43127 + is_textrel_rx = false;
43128 +#endif
43129 +
43130 + /* possible RELRO */
43131 + is_relro = vma->vm_file && vma->anon_vma && oldflags == (VM_MAYWRITE | VM_MAYREAD | VM_READ) && newflags == (VM_MAYWRITE | VM_MAYREAD | VM_READ);
43132 +
43133 + if (!is_textrel_rw && !is_textrel_rx && !is_relro)
43134 + return;
43135 +
43136 + if (sizeof(elf_h) != kernel_read(vma->vm_file, 0UL, (char *)&elf_h, sizeof(elf_h)) ||
43137 + memcmp(elf_h.e_ident, ELFMAG, SELFMAG) ||
43138 +
43139 +#ifdef CONFIG_PAX_ETEXECRELOCS
43140 + ((is_textrel_rw || is_textrel_rx) && (elf_h.e_type != ET_DYN && elf_h.e_type != ET_EXEC)) ||
43141 +#else
43142 + ((is_textrel_rw || is_textrel_rx) && elf_h.e_type != ET_DYN) ||
43143 +#endif
43144 +
43145 + (is_relro && (elf_h.e_type != ET_DYN && elf_h.e_type != ET_EXEC)) ||
43146 + !elf_check_arch(&elf_h) ||
43147 + elf_h.e_phentsize != sizeof(struct elf_phdr) ||
43148 + elf_h.e_phnum > 65536UL / sizeof(struct elf_phdr))
43149 + return;
43150 +
43151 + for (i = 0UL; i < elf_h.e_phnum; i++) {
43152 + if (sizeof(elf_p) != kernel_read(vma->vm_file, elf_h.e_phoff + i*sizeof(elf_p), (char *)&elf_p, sizeof(elf_p)))
43153 + return;
43154 + switch (elf_p.p_type) {
43155 + case PT_DYNAMIC:
43156 + if (!is_textrel_rw && !is_textrel_rx)
43157 + continue;
43158 + i = 0UL;
43159 + while ((i+1) * sizeof(elf_dyn) <= elf_p.p_filesz) {
43160 + elf_dyn dyn;
43161 +
43162 + if (sizeof(dyn) != kernel_read(vma->vm_file, elf_p.p_offset + i*sizeof(dyn), (char *)&dyn, sizeof(dyn)))
43163 + return;
43164 + if (dyn.d_tag == DT_NULL)
43165 + return;
43166 + if (dyn.d_tag == DT_TEXTREL || (dyn.d_tag == DT_FLAGS && (dyn.d_un.d_val & DF_TEXTREL))) {
43167 + gr_log_textrel(vma);
43168 + if (is_textrel_rw)
43169 + vma->vm_flags |= VM_MAYWRITE;
43170 + else
43171 + /* PaX: disallow write access after relocs are done, hopefully noone else needs it... */
43172 + vma->vm_flags &= ~VM_MAYWRITE;
43173 + return;
43174 + }
43175 + i++;
43176 + }
43177 + return;
43178 +
43179 + case PT_GNU_RELRO:
43180 + if (!is_relro)
43181 + continue;
43182 + if ((elf_p.p_offset >> PAGE_SHIFT) == vma->vm_pgoff && ELF_PAGEALIGN(elf_p.p_memsz) == vma->vm_end - vma->vm_start)
43183 + vma->vm_flags &= ~VM_MAYWRITE;
43184 + return;
43185 + }
43186 + }
43187 +}
43188 +#endif
43189 +
43190 static int __init init_elf_binfmt(void)
43191 {
43192 register_binfmt(&elf_format);
43193 diff --git a/fs/binfmt_flat.c b/fs/binfmt_flat.c
43194 index 178cb70..8972997 100644
43195 --- a/fs/binfmt_flat.c
43196 +++ b/fs/binfmt_flat.c
43197 @@ -562,7 +562,9 @@ static int load_flat_file(struct linux_binprm * bprm,
43198 realdatastart = (unsigned long) -ENOMEM;
43199 printk("Unable to allocate RAM for process data, errno %d\n",
43200 (int)-realdatastart);
43201 + down_write(&current->mm->mmap_sem);
43202 vm_munmap(textpos, text_len);
43203 + up_write(&current->mm->mmap_sem);
43204 ret = realdatastart;
43205 goto err;
43206 }
43207 @@ -586,8 +588,10 @@ static int load_flat_file(struct linux_binprm * bprm,
43208 }
43209 if (IS_ERR_VALUE(result)) {
43210 printk("Unable to read data+bss, errno %d\n", (int)-result);
43211 + down_write(&current->mm->mmap_sem);
43212 vm_munmap(textpos, text_len);
43213 vm_munmap(realdatastart, len);
43214 + up_write(&current->mm->mmap_sem);
43215 ret = result;
43216 goto err;
43217 }
43218 @@ -654,8 +658,10 @@ static int load_flat_file(struct linux_binprm * bprm,
43219 }
43220 if (IS_ERR_VALUE(result)) {
43221 printk("Unable to read code+data+bss, errno %d\n",(int)-result);
43222 + down_write(&current->mm->mmap_sem);
43223 vm_munmap(textpos, text_len + data_len + extra +
43224 MAX_SHARED_LIBS * sizeof(unsigned long));
43225 + up_write(&current->mm->mmap_sem);
43226 ret = result;
43227 goto err;
43228 }
43229 diff --git a/fs/bio.c b/fs/bio.c
43230 index 73922ab..16642dd 100644
43231 --- a/fs/bio.c
43232 +++ b/fs/bio.c
43233 @@ -841,7 +841,7 @@ struct bio *bio_copy_user_iov(struct request_queue *q,
43234 /*
43235 * Overflow, abort
43236 */
43237 - if (end < start)
43238 + if (end < start || end - start > INT_MAX - nr_pages)
43239 return ERR_PTR(-EINVAL);
43240
43241 nr_pages += end - start;
43242 @@ -975,7 +975,7 @@ static struct bio *__bio_map_user_iov(struct request_queue *q,
43243 /*
43244 * Overflow, abort
43245 */
43246 - if (end < start)
43247 + if (end < start || end - start > INT_MAX - nr_pages)
43248 return ERR_PTR(-EINVAL);
43249
43250 nr_pages += end - start;
43251 @@ -1237,7 +1237,7 @@ static void bio_copy_kern_endio(struct bio *bio, int err)
43252 const int read = bio_data_dir(bio) == READ;
43253 struct bio_map_data *bmd = bio->bi_private;
43254 int i;
43255 - char *p = bmd->sgvecs[0].iov_base;
43256 + char *p = (char __force_kernel *)bmd->sgvecs[0].iov_base;
43257
43258 __bio_for_each_segment(bvec, bio, i, 0) {
43259 char *addr = page_address(bvec->bv_page);
43260 diff --git a/fs/block_dev.c b/fs/block_dev.c
43261 index c2bbe1f..9dfbc23 100644
43262 --- a/fs/block_dev.c
43263 +++ b/fs/block_dev.c
43264 @@ -704,7 +704,7 @@ static bool bd_may_claim(struct block_device *bdev, struct block_device *whole,
43265 else if (bdev->bd_contains == bdev)
43266 return true; /* is a whole device which isn't held */
43267
43268 - else if (whole->bd_holder == bd_may_claim)
43269 + else if (whole->bd_holder == (void *)bd_may_claim)
43270 return true; /* is a partition of a device that is being partitioned */
43271 else if (whole->bd_holder != NULL)
43272 return false; /* is a partition of a held device */
43273 diff --git a/fs/btrfs/check-integrity.c b/fs/btrfs/check-integrity.c
43274 index da6e936..1598dd0 100644
43275 --- a/fs/btrfs/check-integrity.c
43276 +++ b/fs/btrfs/check-integrity.c
43277 @@ -155,7 +155,7 @@ struct btrfsic_block {
43278 union {
43279 bio_end_io_t *bio;
43280 bh_end_io_t *bh;
43281 - } orig_bio_bh_end_io;
43282 + } __no_const orig_bio_bh_end_io;
43283 int submit_bio_bh_rw;
43284 u64 flush_gen; /* only valid if !never_written */
43285 };
43286 diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
43287 index 8206b39..06d5654 100644
43288 --- a/fs/btrfs/ctree.c
43289 +++ b/fs/btrfs/ctree.c
43290 @@ -973,9 +973,12 @@ static noinline int __btrfs_cow_block(struct btrfs_trans_handle *trans,
43291 free_extent_buffer(buf);
43292 add_root_to_dirty_list(root);
43293 } else {
43294 - if (root->root_key.objectid == BTRFS_TREE_RELOC_OBJECTID)
43295 - parent_start = parent->start;
43296 - else
43297 + if (root->root_key.objectid == BTRFS_TREE_RELOC_OBJECTID) {
43298 + if (parent)
43299 + parent_start = parent->start;
43300 + else
43301 + parent_start = 0;
43302 + } else
43303 parent_start = 0;
43304
43305 WARN_ON(trans->transid != btrfs_header_generation(parent));
43306 diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
43307 index a7d1921..a32dba2 100644
43308 --- a/fs/btrfs/inode.c
43309 +++ b/fs/btrfs/inode.c
43310 @@ -7111,7 +7111,7 @@ fail:
43311 return -ENOMEM;
43312 }
43313
43314 -static int btrfs_getattr(struct vfsmount *mnt,
43315 +int btrfs_getattr(struct vfsmount *mnt,
43316 struct dentry *dentry, struct kstat *stat)
43317 {
43318 struct inode *inode = dentry->d_inode;
43319 @@ -7125,6 +7125,14 @@ static int btrfs_getattr(struct vfsmount *mnt,
43320 return 0;
43321 }
43322
43323 +EXPORT_SYMBOL(btrfs_getattr);
43324 +
43325 +dev_t get_btrfs_dev_from_inode(struct inode *inode)
43326 +{
43327 + return BTRFS_I(inode)->root->anon_dev;
43328 +}
43329 +EXPORT_SYMBOL(get_btrfs_dev_from_inode);
43330 +
43331 /*
43332 * If a file is moved, it will inherit the cow and compression flags of the new
43333 * directory.
43334 diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
43335 index 0e92e57..8b560de 100644
43336 --- a/fs/btrfs/ioctl.c
43337 +++ b/fs/btrfs/ioctl.c
43338 @@ -2902,9 +2902,12 @@ long btrfs_ioctl_space_info(struct btrfs_root *root, void __user *arg)
43339 for (i = 0; i < num_types; i++) {
43340 struct btrfs_space_info *tmp;
43341
43342 + /* Don't copy in more than we allocated */
43343 if (!slot_count)
43344 break;
43345
43346 + slot_count--;
43347 +
43348 info = NULL;
43349 rcu_read_lock();
43350 list_for_each_entry_rcu(tmp, &root->fs_info->space_info,
43351 @@ -2926,10 +2929,7 @@ long btrfs_ioctl_space_info(struct btrfs_root *root, void __user *arg)
43352 memcpy(dest, &space, sizeof(space));
43353 dest++;
43354 space_args.total_spaces++;
43355 - slot_count--;
43356 }
43357 - if (!slot_count)
43358 - break;
43359 }
43360 up_read(&info->groups_sem);
43361 }
43362 diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c
43363 index 646ee21..f020f87 100644
43364 --- a/fs/btrfs/relocation.c
43365 +++ b/fs/btrfs/relocation.c
43366 @@ -1268,7 +1268,7 @@ static int __update_reloc_root(struct btrfs_root *root, int del)
43367 }
43368 spin_unlock(&rc->reloc_root_tree.lock);
43369
43370 - BUG_ON((struct btrfs_root *)node->data != root);
43371 + BUG_ON(!node || (struct btrfs_root *)node->data != root);
43372
43373 if (!del) {
43374 spin_lock(&rc->reloc_root_tree.lock);
43375 diff --git a/fs/cachefiles/bind.c b/fs/cachefiles/bind.c
43376 index 622f469..e8d2d55 100644
43377 --- a/fs/cachefiles/bind.c
43378 +++ b/fs/cachefiles/bind.c
43379 @@ -39,13 +39,11 @@ int cachefiles_daemon_bind(struct cachefiles_cache *cache, char *args)
43380 args);
43381
43382 /* start by checking things over */
43383 - ASSERT(cache->fstop_percent >= 0 &&
43384 - cache->fstop_percent < cache->fcull_percent &&
43385 + ASSERT(cache->fstop_percent < cache->fcull_percent &&
43386 cache->fcull_percent < cache->frun_percent &&
43387 cache->frun_percent < 100);
43388
43389 - ASSERT(cache->bstop_percent >= 0 &&
43390 - cache->bstop_percent < cache->bcull_percent &&
43391 + ASSERT(cache->bstop_percent < cache->bcull_percent &&
43392 cache->bcull_percent < cache->brun_percent &&
43393 cache->brun_percent < 100);
43394
43395 diff --git a/fs/cachefiles/daemon.c b/fs/cachefiles/daemon.c
43396 index 0a1467b..6a53245 100644
43397 --- a/fs/cachefiles/daemon.c
43398 +++ b/fs/cachefiles/daemon.c
43399 @@ -196,7 +196,7 @@ static ssize_t cachefiles_daemon_read(struct file *file, char __user *_buffer,
43400 if (n > buflen)
43401 return -EMSGSIZE;
43402
43403 - if (copy_to_user(_buffer, buffer, n) != 0)
43404 + if (n > sizeof(buffer) || copy_to_user(_buffer, buffer, n) != 0)
43405 return -EFAULT;
43406
43407 return n;
43408 @@ -222,7 +222,7 @@ static ssize_t cachefiles_daemon_write(struct file *file,
43409 if (test_bit(CACHEFILES_DEAD, &cache->flags))
43410 return -EIO;
43411
43412 - if (datalen < 0 || datalen > PAGE_SIZE - 1)
43413 + if (datalen > PAGE_SIZE - 1)
43414 return -EOPNOTSUPP;
43415
43416 /* drag the command string into the kernel so we can parse it */
43417 @@ -386,7 +386,7 @@ static int cachefiles_daemon_fstop(struct cachefiles_cache *cache, char *args)
43418 if (args[0] != '%' || args[1] != '\0')
43419 return -EINVAL;
43420
43421 - if (fstop < 0 || fstop >= cache->fcull_percent)
43422 + if (fstop >= cache->fcull_percent)
43423 return cachefiles_daemon_range_error(cache, args);
43424
43425 cache->fstop_percent = fstop;
43426 @@ -458,7 +458,7 @@ static int cachefiles_daemon_bstop(struct cachefiles_cache *cache, char *args)
43427 if (args[0] != '%' || args[1] != '\0')
43428 return -EINVAL;
43429
43430 - if (bstop < 0 || bstop >= cache->bcull_percent)
43431 + if (bstop >= cache->bcull_percent)
43432 return cachefiles_daemon_range_error(cache, args);
43433
43434 cache->bstop_percent = bstop;
43435 diff --git a/fs/cachefiles/internal.h b/fs/cachefiles/internal.h
43436 index bd6bc1b..b627b53 100644
43437 --- a/fs/cachefiles/internal.h
43438 +++ b/fs/cachefiles/internal.h
43439 @@ -57,7 +57,7 @@ struct cachefiles_cache {
43440 wait_queue_head_t daemon_pollwq; /* poll waitqueue for daemon */
43441 struct rb_root active_nodes; /* active nodes (can't be culled) */
43442 rwlock_t active_lock; /* lock for active_nodes */
43443 - atomic_t gravecounter; /* graveyard uniquifier */
43444 + atomic_unchecked_t gravecounter; /* graveyard uniquifier */
43445 unsigned frun_percent; /* when to stop culling (% files) */
43446 unsigned fcull_percent; /* when to start culling (% files) */
43447 unsigned fstop_percent; /* when to stop allocating (% files) */
43448 @@ -169,19 +169,19 @@ extern int cachefiles_check_in_use(struct cachefiles_cache *cache,
43449 * proc.c
43450 */
43451 #ifdef CONFIG_CACHEFILES_HISTOGRAM
43452 -extern atomic_t cachefiles_lookup_histogram[HZ];
43453 -extern atomic_t cachefiles_mkdir_histogram[HZ];
43454 -extern atomic_t cachefiles_create_histogram[HZ];
43455 +extern atomic_unchecked_t cachefiles_lookup_histogram[HZ];
43456 +extern atomic_unchecked_t cachefiles_mkdir_histogram[HZ];
43457 +extern atomic_unchecked_t cachefiles_create_histogram[HZ];
43458
43459 extern int __init cachefiles_proc_init(void);
43460 extern void cachefiles_proc_cleanup(void);
43461 static inline
43462 -void cachefiles_hist(atomic_t histogram[], unsigned long start_jif)
43463 +void cachefiles_hist(atomic_unchecked_t histogram[], unsigned long start_jif)
43464 {
43465 unsigned long jif = jiffies - start_jif;
43466 if (jif >= HZ)
43467 jif = HZ - 1;
43468 - atomic_inc(&histogram[jif]);
43469 + atomic_inc_unchecked(&histogram[jif]);
43470 }
43471
43472 #else
43473 diff --git a/fs/cachefiles/namei.c b/fs/cachefiles/namei.c
43474 index 7f0771d..87d4f36 100644
43475 --- a/fs/cachefiles/namei.c
43476 +++ b/fs/cachefiles/namei.c
43477 @@ -318,7 +318,7 @@ try_again:
43478 /* first step is to make up a grave dentry in the graveyard */
43479 sprintf(nbuffer, "%08x%08x",
43480 (uint32_t) get_seconds(),
43481 - (uint32_t) atomic_inc_return(&cache->gravecounter));
43482 + (uint32_t) atomic_inc_return_unchecked(&cache->gravecounter));
43483
43484 /* do the multiway lock magic */
43485 trap = lock_rename(cache->graveyard, dir);
43486 diff --git a/fs/cachefiles/proc.c b/fs/cachefiles/proc.c
43487 index eccd339..4c1d995 100644
43488 --- a/fs/cachefiles/proc.c
43489 +++ b/fs/cachefiles/proc.c
43490 @@ -14,9 +14,9 @@
43491 #include <linux/seq_file.h>
43492 #include "internal.h"
43493
43494 -atomic_t cachefiles_lookup_histogram[HZ];
43495 -atomic_t cachefiles_mkdir_histogram[HZ];
43496 -atomic_t cachefiles_create_histogram[HZ];
43497 +atomic_unchecked_t cachefiles_lookup_histogram[HZ];
43498 +atomic_unchecked_t cachefiles_mkdir_histogram[HZ];
43499 +atomic_unchecked_t cachefiles_create_histogram[HZ];
43500
43501 /*
43502 * display the latency histogram
43503 @@ -35,9 +35,9 @@ static int cachefiles_histogram_show(struct seq_file *m, void *v)
43504 return 0;
43505 default:
43506 index = (unsigned long) v - 3;
43507 - x = atomic_read(&cachefiles_lookup_histogram[index]);
43508 - y = atomic_read(&cachefiles_mkdir_histogram[index]);
43509 - z = atomic_read(&cachefiles_create_histogram[index]);
43510 + x = atomic_read_unchecked(&cachefiles_lookup_histogram[index]);
43511 + y = atomic_read_unchecked(&cachefiles_mkdir_histogram[index]);
43512 + z = atomic_read_unchecked(&cachefiles_create_histogram[index]);
43513 if (x == 0 && y == 0 && z == 0)
43514 return 0;
43515
43516 diff --git a/fs/cachefiles/rdwr.c b/fs/cachefiles/rdwr.c
43517 index 0e3c092..818480e 100644
43518 --- a/fs/cachefiles/rdwr.c
43519 +++ b/fs/cachefiles/rdwr.c
43520 @@ -945,7 +945,7 @@ int cachefiles_write_page(struct fscache_storage *op, struct page *page)
43521 old_fs = get_fs();
43522 set_fs(KERNEL_DS);
43523 ret = file->f_op->write(
43524 - file, (const void __user *) data, len, &pos);
43525 + file, (const void __force_user *) data, len, &pos);
43526 set_fs(old_fs);
43527 kunmap(page);
43528 if (ret != len)
43529 diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c
43530 index 3e8094b..cb3ff3d 100644
43531 --- a/fs/ceph/dir.c
43532 +++ b/fs/ceph/dir.c
43533 @@ -244,7 +244,7 @@ static int ceph_readdir(struct file *filp, void *dirent, filldir_t filldir)
43534 struct ceph_fs_client *fsc = ceph_inode_to_client(inode);
43535 struct ceph_mds_client *mdsc = fsc->mdsc;
43536 unsigned frag = fpos_frag(filp->f_pos);
43537 - int off = fpos_off(filp->f_pos);
43538 + unsigned int off = fpos_off(filp->f_pos);
43539 int err;
43540 u32 ftype;
43541 struct ceph_mds_reply_info_parsed *rinfo;
43542 @@ -598,7 +598,7 @@ static struct dentry *ceph_lookup(struct inode *dir, struct dentry *dentry,
43543 if (nd &&
43544 (nd->flags & LOOKUP_OPEN) &&
43545 !(nd->intent.open.flags & O_CREAT)) {
43546 - int mode = nd->intent.open.create_mode & ~current->fs->umask;
43547 + int mode = nd->intent.open.create_mode & ~current_umask();
43548 return ceph_lookup_open(dir, dentry, nd, mode, 1);
43549 }
43550
43551 diff --git a/fs/cifs/cifs_debug.c b/fs/cifs/cifs_debug.c
43552 index e814052..28dcdf7 100644
43553 --- a/fs/cifs/cifs_debug.c
43554 +++ b/fs/cifs/cifs_debug.c
43555 @@ -267,8 +267,8 @@ static ssize_t cifs_stats_proc_write(struct file *file,
43556
43557 if (c == '1' || c == 'y' || c == 'Y' || c == '0') {
43558 #ifdef CONFIG_CIFS_STATS2
43559 - atomic_set(&totBufAllocCount, 0);
43560 - atomic_set(&totSmBufAllocCount, 0);
43561 + atomic_set_unchecked(&totBufAllocCount, 0);
43562 + atomic_set_unchecked(&totSmBufAllocCount, 0);
43563 #endif /* CONFIG_CIFS_STATS2 */
43564 spin_lock(&cifs_tcp_ses_lock);
43565 list_for_each(tmp1, &cifs_tcp_ses_list) {
43566 @@ -281,25 +281,25 @@ static ssize_t cifs_stats_proc_write(struct file *file,
43567 tcon = list_entry(tmp3,
43568 struct cifs_tcon,
43569 tcon_list);
43570 - atomic_set(&tcon->num_smbs_sent, 0);
43571 - atomic_set(&tcon->num_writes, 0);
43572 - atomic_set(&tcon->num_reads, 0);
43573 - atomic_set(&tcon->num_oplock_brks, 0);
43574 - atomic_set(&tcon->num_opens, 0);
43575 - atomic_set(&tcon->num_posixopens, 0);
43576 - atomic_set(&tcon->num_posixmkdirs, 0);
43577 - atomic_set(&tcon->num_closes, 0);
43578 - atomic_set(&tcon->num_deletes, 0);
43579 - atomic_set(&tcon->num_mkdirs, 0);
43580 - atomic_set(&tcon->num_rmdirs, 0);
43581 - atomic_set(&tcon->num_renames, 0);
43582 - atomic_set(&tcon->num_t2renames, 0);
43583 - atomic_set(&tcon->num_ffirst, 0);
43584 - atomic_set(&tcon->num_fnext, 0);
43585 - atomic_set(&tcon->num_fclose, 0);
43586 - atomic_set(&tcon->num_hardlinks, 0);
43587 - atomic_set(&tcon->num_symlinks, 0);
43588 - atomic_set(&tcon->num_locks, 0);
43589 + atomic_set_unchecked(&tcon->num_smbs_sent, 0);
43590 + atomic_set_unchecked(&tcon->num_writes, 0);
43591 + atomic_set_unchecked(&tcon->num_reads, 0);
43592 + atomic_set_unchecked(&tcon->num_oplock_brks, 0);
43593 + atomic_set_unchecked(&tcon->num_opens, 0);
43594 + atomic_set_unchecked(&tcon->num_posixopens, 0);
43595 + atomic_set_unchecked(&tcon->num_posixmkdirs, 0);
43596 + atomic_set_unchecked(&tcon->num_closes, 0);
43597 + atomic_set_unchecked(&tcon->num_deletes, 0);
43598 + atomic_set_unchecked(&tcon->num_mkdirs, 0);
43599 + atomic_set_unchecked(&tcon->num_rmdirs, 0);
43600 + atomic_set_unchecked(&tcon->num_renames, 0);
43601 + atomic_set_unchecked(&tcon->num_t2renames, 0);
43602 + atomic_set_unchecked(&tcon->num_ffirst, 0);
43603 + atomic_set_unchecked(&tcon->num_fnext, 0);
43604 + atomic_set_unchecked(&tcon->num_fclose, 0);
43605 + atomic_set_unchecked(&tcon->num_hardlinks, 0);
43606 + atomic_set_unchecked(&tcon->num_symlinks, 0);
43607 + atomic_set_unchecked(&tcon->num_locks, 0);
43608 }
43609 }
43610 }
43611 @@ -329,8 +329,8 @@ static int cifs_stats_proc_show(struct seq_file *m, void *v)
43612 smBufAllocCount.counter, cifs_min_small);
43613 #ifdef CONFIG_CIFS_STATS2
43614 seq_printf(m, "Total Large %d Small %d Allocations\n",
43615 - atomic_read(&totBufAllocCount),
43616 - atomic_read(&totSmBufAllocCount));
43617 + atomic_read_unchecked(&totBufAllocCount),
43618 + atomic_read_unchecked(&totSmBufAllocCount));
43619 #endif /* CONFIG_CIFS_STATS2 */
43620
43621 seq_printf(m, "Operations (MIDs): %d\n", atomic_read(&midCount));
43622 @@ -359,41 +359,41 @@ static int cifs_stats_proc_show(struct seq_file *m, void *v)
43623 if (tcon->need_reconnect)
43624 seq_puts(m, "\tDISCONNECTED ");
43625 seq_printf(m, "\nSMBs: %d Oplock Breaks: %d",
43626 - atomic_read(&tcon->num_smbs_sent),
43627 - atomic_read(&tcon->num_oplock_brks));
43628 + atomic_read_unchecked(&tcon->num_smbs_sent),
43629 + atomic_read_unchecked(&tcon->num_oplock_brks));
43630 seq_printf(m, "\nReads: %d Bytes: %lld",
43631 - atomic_read(&tcon->num_reads),
43632 + atomic_read_unchecked(&tcon->num_reads),
43633 (long long)(tcon->bytes_read));
43634 seq_printf(m, "\nWrites: %d Bytes: %lld",
43635 - atomic_read(&tcon->num_writes),
43636 + atomic_read_unchecked(&tcon->num_writes),
43637 (long long)(tcon->bytes_written));
43638 seq_printf(m, "\nFlushes: %d",
43639 - atomic_read(&tcon->num_flushes));
43640 + atomic_read_unchecked(&tcon->num_flushes));
43641 seq_printf(m, "\nLocks: %d HardLinks: %d "
43642 "Symlinks: %d",
43643 - atomic_read(&tcon->num_locks),
43644 - atomic_read(&tcon->num_hardlinks),
43645 - atomic_read(&tcon->num_symlinks));
43646 + atomic_read_unchecked(&tcon->num_locks),
43647 + atomic_read_unchecked(&tcon->num_hardlinks),
43648 + atomic_read_unchecked(&tcon->num_symlinks));
43649 seq_printf(m, "\nOpens: %d Closes: %d "
43650 "Deletes: %d",
43651 - atomic_read(&tcon->num_opens),
43652 - atomic_read(&tcon->num_closes),
43653 - atomic_read(&tcon->num_deletes));
43654 + atomic_read_unchecked(&tcon->num_opens),
43655 + atomic_read_unchecked(&tcon->num_closes),
43656 + atomic_read_unchecked(&tcon->num_deletes));
43657 seq_printf(m, "\nPosix Opens: %d "
43658 "Posix Mkdirs: %d",
43659 - atomic_read(&tcon->num_posixopens),
43660 - atomic_read(&tcon->num_posixmkdirs));
43661 + atomic_read_unchecked(&tcon->num_posixopens),
43662 + atomic_read_unchecked(&tcon->num_posixmkdirs));
43663 seq_printf(m, "\nMkdirs: %d Rmdirs: %d",
43664 - atomic_read(&tcon->num_mkdirs),
43665 - atomic_read(&tcon->num_rmdirs));
43666 + atomic_read_unchecked(&tcon->num_mkdirs),
43667 + atomic_read_unchecked(&tcon->num_rmdirs));
43668 seq_printf(m, "\nRenames: %d T2 Renames %d",
43669 - atomic_read(&tcon->num_renames),
43670 - atomic_read(&tcon->num_t2renames));
43671 + atomic_read_unchecked(&tcon->num_renames),
43672 + atomic_read_unchecked(&tcon->num_t2renames));
43673 seq_printf(m, "\nFindFirst: %d FNext %d "
43674 "FClose %d",
43675 - atomic_read(&tcon->num_ffirst),
43676 - atomic_read(&tcon->num_fnext),
43677 - atomic_read(&tcon->num_fclose));
43678 + atomic_read_unchecked(&tcon->num_ffirst),
43679 + atomic_read_unchecked(&tcon->num_fnext),
43680 + atomic_read_unchecked(&tcon->num_fclose));
43681 }
43682 }
43683 }
43684 diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
43685 index 8b6e344..303a662 100644
43686 --- a/fs/cifs/cifsfs.c
43687 +++ b/fs/cifs/cifsfs.c
43688 @@ -994,7 +994,7 @@ cifs_init_request_bufs(void)
43689 cifs_req_cachep = kmem_cache_create("cifs_request",
43690 CIFSMaxBufSize +
43691 MAX_CIFS_HDR_SIZE, 0,
43692 - SLAB_HWCACHE_ALIGN, NULL);
43693 + SLAB_HWCACHE_ALIGN | SLAB_USERCOPY, NULL);
43694 if (cifs_req_cachep == NULL)
43695 return -ENOMEM;
43696
43697 @@ -1021,7 +1021,7 @@ cifs_init_request_bufs(void)
43698 efficient to alloc 1 per page off the slab compared to 17K (5page)
43699 alloc of large cifs buffers even when page debugging is on */
43700 cifs_sm_req_cachep = kmem_cache_create("cifs_small_rq",
43701 - MAX_CIFS_SMALL_BUFFER_SIZE, 0, SLAB_HWCACHE_ALIGN,
43702 + MAX_CIFS_SMALL_BUFFER_SIZE, 0, SLAB_HWCACHE_ALIGN | SLAB_USERCOPY,
43703 NULL);
43704 if (cifs_sm_req_cachep == NULL) {
43705 mempool_destroy(cifs_req_poolp);
43706 @@ -1106,8 +1106,8 @@ init_cifs(void)
43707 atomic_set(&bufAllocCount, 0);
43708 atomic_set(&smBufAllocCount, 0);
43709 #ifdef CONFIG_CIFS_STATS2
43710 - atomic_set(&totBufAllocCount, 0);
43711 - atomic_set(&totSmBufAllocCount, 0);
43712 + atomic_set_unchecked(&totBufAllocCount, 0);
43713 + atomic_set_unchecked(&totSmBufAllocCount, 0);
43714 #endif /* CONFIG_CIFS_STATS2 */
43715
43716 atomic_set(&midCount, 0);
43717 diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
43718 index d86ba9f..e80049d 100644
43719 --- a/fs/cifs/cifsglob.h
43720 +++ b/fs/cifs/cifsglob.h
43721 @@ -491,28 +491,28 @@ struct cifs_tcon {
43722 __u16 Flags; /* optional support bits */
43723 enum statusEnum tidStatus;
43724 #ifdef CONFIG_CIFS_STATS
43725 - atomic_t num_smbs_sent;
43726 - atomic_t num_writes;
43727 - atomic_t num_reads;
43728 - atomic_t num_flushes;
43729 - atomic_t num_oplock_brks;
43730 - atomic_t num_opens;
43731 - atomic_t num_closes;
43732 - atomic_t num_deletes;
43733 - atomic_t num_mkdirs;
43734 - atomic_t num_posixopens;
43735 - atomic_t num_posixmkdirs;
43736 - atomic_t num_rmdirs;
43737 - atomic_t num_renames;
43738 - atomic_t num_t2renames;
43739 - atomic_t num_ffirst;
43740 - atomic_t num_fnext;
43741 - atomic_t num_fclose;
43742 - atomic_t num_hardlinks;
43743 - atomic_t num_symlinks;
43744 - atomic_t num_locks;
43745 - atomic_t num_acl_get;
43746 - atomic_t num_acl_set;
43747 + atomic_unchecked_t num_smbs_sent;
43748 + atomic_unchecked_t num_writes;
43749 + atomic_unchecked_t num_reads;
43750 + atomic_unchecked_t num_flushes;
43751 + atomic_unchecked_t num_oplock_brks;
43752 + atomic_unchecked_t num_opens;
43753 + atomic_unchecked_t num_closes;
43754 + atomic_unchecked_t num_deletes;
43755 + atomic_unchecked_t num_mkdirs;
43756 + atomic_unchecked_t num_posixopens;
43757 + atomic_unchecked_t num_posixmkdirs;
43758 + atomic_unchecked_t num_rmdirs;
43759 + atomic_unchecked_t num_renames;
43760 + atomic_unchecked_t num_t2renames;
43761 + atomic_unchecked_t num_ffirst;
43762 + atomic_unchecked_t num_fnext;
43763 + atomic_unchecked_t num_fclose;
43764 + atomic_unchecked_t num_hardlinks;
43765 + atomic_unchecked_t num_symlinks;
43766 + atomic_unchecked_t num_locks;
43767 + atomic_unchecked_t num_acl_get;
43768 + atomic_unchecked_t num_acl_set;
43769 #ifdef CONFIG_CIFS_STATS2
43770 unsigned long long time_writes;
43771 unsigned long long time_reads;
43772 @@ -735,7 +735,7 @@ convert_delimiter(char *path, char delim)
43773 }
43774
43775 #ifdef CONFIG_CIFS_STATS
43776 -#define cifs_stats_inc atomic_inc
43777 +#define cifs_stats_inc atomic_inc_unchecked
43778
43779 static inline void cifs_stats_bytes_written(struct cifs_tcon *tcon,
43780 unsigned int bytes)
43781 @@ -1093,8 +1093,8 @@ GLOBAL_EXTERN atomic_t tconInfoReconnectCount;
43782 /* Various Debug counters */
43783 GLOBAL_EXTERN atomic_t bufAllocCount; /* current number allocated */
43784 #ifdef CONFIG_CIFS_STATS2
43785 -GLOBAL_EXTERN atomic_t totBufAllocCount; /* total allocated over all time */
43786 -GLOBAL_EXTERN atomic_t totSmBufAllocCount;
43787 +GLOBAL_EXTERN atomic_unchecked_t totBufAllocCount; /* total allocated over all time */
43788 +GLOBAL_EXTERN atomic_unchecked_t totSmBufAllocCount;
43789 #endif
43790 GLOBAL_EXTERN atomic_t smBufAllocCount;
43791 GLOBAL_EXTERN atomic_t midCount;
43792 diff --git a/fs/cifs/link.c b/fs/cifs/link.c
43793 index 6b0e064..94e6c3c 100644
43794 --- a/fs/cifs/link.c
43795 +++ b/fs/cifs/link.c
43796 @@ -600,7 +600,7 @@ symlink_exit:
43797
43798 void cifs_put_link(struct dentry *direntry, struct nameidata *nd, void *cookie)
43799 {
43800 - char *p = nd_get_link(nd);
43801 + const char *p = nd_get_link(nd);
43802 if (!IS_ERR(p))
43803 kfree(p);
43804 }
43805 diff --git a/fs/cifs/misc.c b/fs/cifs/misc.c
43806 index 557506a..2fd3816 100644
43807 --- a/fs/cifs/misc.c
43808 +++ b/fs/cifs/misc.c
43809 @@ -156,7 +156,7 @@ cifs_buf_get(void)
43810 memset(ret_buf, 0, sizeof(struct smb_hdr) + 3);
43811 atomic_inc(&bufAllocCount);
43812 #ifdef CONFIG_CIFS_STATS2
43813 - atomic_inc(&totBufAllocCount);
43814 + atomic_inc_unchecked(&totBufAllocCount);
43815 #endif /* CONFIG_CIFS_STATS2 */
43816 }
43817
43818 @@ -191,7 +191,7 @@ cifs_small_buf_get(void)
43819 /* memset(ret_buf, 0, sizeof(struct smb_hdr) + 27);*/
43820 atomic_inc(&smBufAllocCount);
43821 #ifdef CONFIG_CIFS_STATS2
43822 - atomic_inc(&totSmBufAllocCount);
43823 + atomic_inc_unchecked(&totSmBufAllocCount);
43824 #endif /* CONFIG_CIFS_STATS2 */
43825
43826 }
43827 diff --git a/fs/coda/cache.c b/fs/coda/cache.c
43828 index 6901578..d402eb5 100644
43829 --- a/fs/coda/cache.c
43830 +++ b/fs/coda/cache.c
43831 @@ -24,7 +24,7 @@
43832 #include "coda_linux.h"
43833 #include "coda_cache.h"
43834
43835 -static atomic_t permission_epoch = ATOMIC_INIT(0);
43836 +static atomic_unchecked_t permission_epoch = ATOMIC_INIT(0);
43837
43838 /* replace or extend an acl cache hit */
43839 void coda_cache_enter(struct inode *inode, int mask)
43840 @@ -32,7 +32,7 @@ void coda_cache_enter(struct inode *inode, int mask)
43841 struct coda_inode_info *cii = ITOC(inode);
43842
43843 spin_lock(&cii->c_lock);
43844 - cii->c_cached_epoch = atomic_read(&permission_epoch);
43845 + cii->c_cached_epoch = atomic_read_unchecked(&permission_epoch);
43846 if (cii->c_uid != current_fsuid()) {
43847 cii->c_uid = current_fsuid();
43848 cii->c_cached_perm = mask;
43849 @@ -46,14 +46,14 @@ void coda_cache_clear_inode(struct inode *inode)
43850 {
43851 struct coda_inode_info *cii = ITOC(inode);
43852 spin_lock(&cii->c_lock);
43853 - cii->c_cached_epoch = atomic_read(&permission_epoch) - 1;
43854 + cii->c_cached_epoch = atomic_read_unchecked(&permission_epoch) - 1;
43855 spin_unlock(&cii->c_lock);
43856 }
43857
43858 /* remove all acl caches */
43859 void coda_cache_clear_all(struct super_block *sb)
43860 {
43861 - atomic_inc(&permission_epoch);
43862 + atomic_inc_unchecked(&permission_epoch);
43863 }
43864
43865
43866 @@ -66,7 +66,7 @@ int coda_cache_check(struct inode *inode, int mask)
43867 spin_lock(&cii->c_lock);
43868 hit = (mask & cii->c_cached_perm) == mask &&
43869 cii->c_uid == current_fsuid() &&
43870 - cii->c_cached_epoch == atomic_read(&permission_epoch);
43871 + cii->c_cached_epoch == atomic_read_unchecked(&permission_epoch);
43872 spin_unlock(&cii->c_lock);
43873
43874 return hit;
43875 diff --git a/fs/compat.c b/fs/compat.c
43876 index 6161255..512b1a1 100644
43877 --- a/fs/compat.c
43878 +++ b/fs/compat.c
43879 @@ -490,7 +490,7 @@ compat_sys_io_setup(unsigned nr_reqs, u32 __user *ctx32p)
43880
43881 set_fs(KERNEL_DS);
43882 /* The __user pointer cast is valid because of the set_fs() */
43883 - ret = sys_io_setup(nr_reqs, (aio_context_t __user *) &ctx64);
43884 + ret = sys_io_setup(nr_reqs, (aio_context_t __force_user *) &ctx64);
43885 set_fs(oldfs);
43886 /* truncating is ok because it's a user address */
43887 if (!ret)
43888 @@ -548,7 +548,7 @@ ssize_t compat_rw_copy_check_uvector(int type,
43889 goto out;
43890
43891 ret = -EINVAL;
43892 - if (nr_segs > UIO_MAXIOV || nr_segs < 0)
43893 + if (nr_segs > UIO_MAXIOV)
43894 goto out;
43895 if (nr_segs > fast_segs) {
43896 ret = -ENOMEM;
43897 @@ -831,6 +831,7 @@ struct compat_old_linux_dirent {
43898
43899 struct compat_readdir_callback {
43900 struct compat_old_linux_dirent __user *dirent;
43901 + struct file * file;
43902 int result;
43903 };
43904
43905 @@ -848,6 +849,10 @@ static int compat_fillonedir(void *__buf, const char *name, int namlen,
43906 buf->result = -EOVERFLOW;
43907 return -EOVERFLOW;
43908 }
43909 +
43910 + if (!gr_acl_handle_filldir(buf->file, name, namlen, ino))
43911 + return 0;
43912 +
43913 buf->result++;
43914 dirent = buf->dirent;
43915 if (!access_ok(VERIFY_WRITE, dirent,
43916 @@ -880,6 +885,7 @@ asmlinkage long compat_sys_old_readdir(unsigned int fd,
43917
43918 buf.result = 0;
43919 buf.dirent = dirent;
43920 + buf.file = file;
43921
43922 error = vfs_readdir(file, compat_fillonedir, &buf);
43923 if (buf.result)
43924 @@ -899,6 +905,7 @@ struct compat_linux_dirent {
43925 struct compat_getdents_callback {
43926 struct compat_linux_dirent __user *current_dir;
43927 struct compat_linux_dirent __user *previous;
43928 + struct file * file;
43929 int count;
43930 int error;
43931 };
43932 @@ -920,6 +927,10 @@ static int compat_filldir(void *__buf, const char *name, int namlen,
43933 buf->error = -EOVERFLOW;
43934 return -EOVERFLOW;
43935 }
43936 +
43937 + if (!gr_acl_handle_filldir(buf->file, name, namlen, ino))
43938 + return 0;
43939 +
43940 dirent = buf->previous;
43941 if (dirent) {
43942 if (__put_user(offset, &dirent->d_off))
43943 @@ -966,6 +977,7 @@ asmlinkage long compat_sys_getdents(unsigned int fd,
43944 buf.previous = NULL;
43945 buf.count = count;
43946 buf.error = 0;
43947 + buf.file = file;
43948
43949 error = vfs_readdir(file, compat_filldir, &buf);
43950 if (error >= 0)
43951 @@ -986,6 +998,7 @@ asmlinkage long compat_sys_getdents(unsigned int fd,
43952 struct compat_getdents_callback64 {
43953 struct linux_dirent64 __user *current_dir;
43954 struct linux_dirent64 __user *previous;
43955 + struct file * file;
43956 int count;
43957 int error;
43958 };
43959 @@ -1002,6 +1015,10 @@ static int compat_filldir64(void * __buf, const char * name, int namlen, loff_t
43960 buf->error = -EINVAL; /* only used if we fail.. */
43961 if (reclen > buf->count)
43962 return -EINVAL;
43963 +
43964 + if (!gr_acl_handle_filldir(buf->file, name, namlen, ino))
43965 + return 0;
43966 +
43967 dirent = buf->previous;
43968
43969 if (dirent) {
43970 @@ -1052,13 +1069,14 @@ asmlinkage long compat_sys_getdents64(unsigned int fd,
43971 buf.previous = NULL;
43972 buf.count = count;
43973 buf.error = 0;
43974 + buf.file = file;
43975
43976 error = vfs_readdir(file, compat_filldir64, &buf);
43977 if (error >= 0)
43978 error = buf.error;
43979 lastdirent = buf.previous;
43980 if (lastdirent) {
43981 - typeof(lastdirent->d_off) d_off = file->f_pos;
43982 + typeof(((struct linux_dirent64 *)0)->d_off) d_off = file->f_pos;
43983 if (__put_user_unaligned(d_off, &lastdirent->d_off))
43984 error = -EFAULT;
43985 else
43986 diff --git a/fs/compat_binfmt_elf.c b/fs/compat_binfmt_elf.c
43987 index 112e45a..b59845b 100644
43988 --- a/fs/compat_binfmt_elf.c
43989 +++ b/fs/compat_binfmt_elf.c
43990 @@ -30,11 +30,13 @@
43991 #undef elf_phdr
43992 #undef elf_shdr
43993 #undef elf_note
43994 +#undef elf_dyn
43995 #undef elf_addr_t
43996 #define elfhdr elf32_hdr
43997 #define elf_phdr elf32_phdr
43998 #define elf_shdr elf32_shdr
43999 #define elf_note elf32_note
44000 +#define elf_dyn Elf32_Dyn
44001 #define elf_addr_t Elf32_Addr
44002
44003 /*
44004 diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c
44005 index debdfe0..75d31d4 100644
44006 --- a/fs/compat_ioctl.c
44007 +++ b/fs/compat_ioctl.c
44008 @@ -210,6 +210,8 @@ static int do_video_set_spu_palette(unsigned int fd, unsigned int cmd,
44009
44010 err = get_user(palp, &up->palette);
44011 err |= get_user(length, &up->length);
44012 + if (err)
44013 + return -EFAULT;
44014
44015 up_native = compat_alloc_user_space(sizeof(struct video_spu_palette));
44016 err = put_user(compat_ptr(palp), &up_native->palette);
44017 @@ -621,7 +623,7 @@ static int serial_struct_ioctl(unsigned fd, unsigned cmd,
44018 return -EFAULT;
44019 if (__get_user(udata, &ss32->iomem_base))
44020 return -EFAULT;
44021 - ss.iomem_base = compat_ptr(udata);
44022 + ss.iomem_base = (unsigned char __force_kernel *)compat_ptr(udata);
44023 if (__get_user(ss.iomem_reg_shift, &ss32->iomem_reg_shift) ||
44024 __get_user(ss.port_high, &ss32->port_high))
44025 return -EFAULT;
44026 @@ -796,7 +798,7 @@ static int compat_ioctl_preallocate(struct file *file,
44027 copy_in_user(&p->l_len, &p32->l_len, sizeof(s64)) ||
44028 copy_in_user(&p->l_sysid, &p32->l_sysid, sizeof(s32)) ||
44029 copy_in_user(&p->l_pid, &p32->l_pid, sizeof(u32)) ||
44030 - copy_in_user(&p->l_pad, &p32->l_pad, 4*sizeof(u32)))
44031 + copy_in_user(p->l_pad, &p32->l_pad, 4*sizeof(u32)))
44032 return -EFAULT;
44033
44034 return ioctl_preallocate(file, p);
44035 @@ -1610,8 +1612,8 @@ asmlinkage long compat_sys_ioctl(unsigned int fd, unsigned int cmd,
44036 static int __init init_sys32_ioctl_cmp(const void *p, const void *q)
44037 {
44038 unsigned int a, b;
44039 - a = *(unsigned int *)p;
44040 - b = *(unsigned int *)q;
44041 + a = *(const unsigned int *)p;
44042 + b = *(const unsigned int *)q;
44043 if (a > b)
44044 return 1;
44045 if (a < b)
44046 diff --git a/fs/configfs/dir.c b/fs/configfs/dir.c
44047 index 7e6c52d..94bc756 100644
44048 --- a/fs/configfs/dir.c
44049 +++ b/fs/configfs/dir.c
44050 @@ -1564,7 +1564,8 @@ static int configfs_readdir(struct file * filp, void * dirent, filldir_t filldir
44051 }
44052 for (p=q->next; p!= &parent_sd->s_children; p=p->next) {
44053 struct configfs_dirent *next;
44054 - const char * name;
44055 + const unsigned char * name;
44056 + char d_name[sizeof(next->s_dentry->d_iname)];
44057 int len;
44058 struct inode *inode = NULL;
44059
44060 @@ -1574,7 +1575,12 @@ static int configfs_readdir(struct file * filp, void * dirent, filldir_t filldir
44061 continue;
44062
44063 name = configfs_get_name(next);
44064 - len = strlen(name);
44065 + if (next->s_dentry && name == next->s_dentry->d_iname) {
44066 + len = next->s_dentry->d_name.len;
44067 + memcpy(d_name, name, len);
44068 + name = d_name;
44069 + } else
44070 + len = strlen(name);
44071
44072 /*
44073 * We'll have a dentry and an inode for
44074 diff --git a/fs/dcache.c b/fs/dcache.c
44075 index 4046904..5e31505 100644
44076 --- a/fs/dcache.c
44077 +++ b/fs/dcache.c
44078 @@ -3154,7 +3154,7 @@ void __init vfs_caches_init(unsigned long mempages)
44079 mempages -= reserve;
44080
44081 names_cachep = kmem_cache_create("names_cache", PATH_MAX, 0,
44082 - SLAB_HWCACHE_ALIGN|SLAB_PANIC, NULL);
44083 + SLAB_HWCACHE_ALIGN|SLAB_PANIC|SLAB_USERCOPY, NULL);
44084
44085 dcache_init();
44086 inode_init();
44087 diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c
44088 index b80bc84..0d46d1a 100644
44089 --- a/fs/debugfs/inode.c
44090 +++ b/fs/debugfs/inode.c
44091 @@ -408,7 +408,11 @@ EXPORT_SYMBOL_GPL(debugfs_create_file);
44092 struct dentry *debugfs_create_dir(const char *name, struct dentry *parent)
44093 {
44094 return debugfs_create_file(name,
44095 +#ifdef CONFIG_GRKERNSEC_SYSFS_RESTRICT
44096 + S_IFDIR | S_IRWXU,
44097 +#else
44098 S_IFDIR | S_IRWXU | S_IRUGO | S_IXUGO,
44099 +#endif
44100 parent, NULL, NULL);
44101 }
44102 EXPORT_SYMBOL_GPL(debugfs_create_dir);
44103 diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c
44104 index a07441a..046fc0d 100644
44105 --- a/fs/ecryptfs/inode.c
44106 +++ b/fs/ecryptfs/inode.c
44107 @@ -671,7 +671,7 @@ static int ecryptfs_readlink_lower(struct dentry *dentry, char **buf,
44108 old_fs = get_fs();
44109 set_fs(get_ds());
44110 rc = lower_dentry->d_inode->i_op->readlink(lower_dentry,
44111 - (char __user *)lower_buf,
44112 + (char __force_user *)lower_buf,
44113 PATH_MAX);
44114 set_fs(old_fs);
44115 if (rc < 0)
44116 @@ -703,7 +703,7 @@ out:
44117 static void
44118 ecryptfs_put_link(struct dentry *dentry, struct nameidata *nd, void *ptr)
44119 {
44120 - char *buf = nd_get_link(nd);
44121 + const char *buf = nd_get_link(nd);
44122 if (!IS_ERR(buf)) {
44123 /* Free the char* */
44124 kfree(buf);
44125 diff --git a/fs/ecryptfs/miscdev.c b/fs/ecryptfs/miscdev.c
44126 index c0038f6..47ab347 100644
44127 --- a/fs/ecryptfs/miscdev.c
44128 +++ b/fs/ecryptfs/miscdev.c
44129 @@ -355,7 +355,7 @@ check_list:
44130 goto out_unlock_msg_ctx;
44131 i = PKT_TYPE_SIZE + PKT_CTR_SIZE;
44132 if (msg_ctx->msg) {
44133 - if (copy_to_user(&buf[i], packet_length, packet_length_size))
44134 + if (packet_length_size > sizeof(packet_length) || copy_to_user(&buf[i], packet_length, packet_length_size))
44135 goto out_unlock_msg_ctx;
44136 i += packet_length_size;
44137 if (copy_to_user(&buf[i], msg_ctx->msg, msg_ctx->msg_size))
44138 diff --git a/fs/ecryptfs/read_write.c b/fs/ecryptfs/read_write.c
44139 index b2a34a1..162fa69 100644
44140 --- a/fs/ecryptfs/read_write.c
44141 +++ b/fs/ecryptfs/read_write.c
44142 @@ -48,7 +48,7 @@ int ecryptfs_write_lower(struct inode *ecryptfs_inode, char *data,
44143 return -EIO;
44144 fs_save = get_fs();
44145 set_fs(get_ds());
44146 - rc = vfs_write(lower_file, data, size, &offset);
44147 + rc = vfs_write(lower_file, (const char __force_user *)data, size, &offset);
44148 set_fs(fs_save);
44149 mark_inode_dirty_sync(ecryptfs_inode);
44150 return rc;
44151 @@ -244,7 +244,7 @@ int ecryptfs_read_lower(char *data, loff_t offset, size_t size,
44152 return -EIO;
44153 fs_save = get_fs();
44154 set_fs(get_ds());
44155 - rc = vfs_read(lower_file, data, size, &offset);
44156 + rc = vfs_read(lower_file, (char __force_user *)data, size, &offset);
44157 set_fs(fs_save);
44158 return rc;
44159 }
44160 diff --git a/fs/exec.c b/fs/exec.c
44161 index e95aeed..a943469 100644
44162 --- a/fs/exec.c
44163 +++ b/fs/exec.c
44164 @@ -55,6 +55,15 @@
44165 #include <linux/pipe_fs_i.h>
44166 #include <linux/oom.h>
44167 #include <linux/compat.h>
44168 +#include <linux/random.h>
44169 +#include <linux/seq_file.h>
44170 +
44171 +#ifdef CONFIG_PAX_REFCOUNT
44172 +#include <linux/kallsyms.h>
44173 +#include <linux/kdebug.h>
44174 +#endif
44175 +
44176 +#include <trace/events/fs.h>
44177
44178 #include <asm/uaccess.h>
44179 #include <asm/mmu_context.h>
44180 @@ -66,6 +75,18 @@
44181
44182 #include <trace/events/sched.h>
44183
44184 +#ifdef CONFIG_PAX_HAVE_ACL_FLAGS
44185 +void __weak pax_set_initial_flags(struct linux_binprm *bprm)
44186 +{
44187 + WARN_ONCE(1, "PAX: PAX_HAVE_ACL_FLAGS was enabled without providing the pax_set_initial_flags callback, this is probably not what you wanted.\n");
44188 +}
44189 +#endif
44190 +
44191 +#ifdef CONFIG_PAX_HOOK_ACL_FLAGS
44192 +void (*pax_set_initial_flags_func)(struct linux_binprm *bprm);
44193 +EXPORT_SYMBOL(pax_set_initial_flags_func);
44194 +#endif
44195 +
44196 int core_uses_pid;
44197 char core_pattern[CORENAME_MAX_SIZE] = "core";
44198 unsigned int core_pipe_limit;
44199 @@ -75,7 +96,7 @@ struct core_name {
44200 char *corename;
44201 int used, size;
44202 };
44203 -static atomic_t call_count = ATOMIC_INIT(1);
44204 +static atomic_unchecked_t call_count = ATOMIC_INIT(1);
44205
44206 /* The maximal length of core_pattern is also specified in sysctl.c */
44207
44208 @@ -191,18 +212,10 @@ static struct page *get_arg_page(struct linux_binprm *bprm, unsigned long pos,
44209 int write)
44210 {
44211 struct page *page;
44212 - int ret;
44213
44214 -#ifdef CONFIG_STACK_GROWSUP
44215 - if (write) {
44216 - ret = expand_downwards(bprm->vma, pos);
44217 - if (ret < 0)
44218 - return NULL;
44219 - }
44220 -#endif
44221 - ret = get_user_pages(current, bprm->mm, pos,
44222 - 1, write, 1, &page, NULL);
44223 - if (ret <= 0)
44224 + if (0 > expand_downwards(bprm->vma, pos))
44225 + return NULL;
44226 + if (0 >= get_user_pages(current, bprm->mm, pos, 1, write, 1, &page, NULL))
44227 return NULL;
44228
44229 if (write) {
44230 @@ -218,6 +231,17 @@ static struct page *get_arg_page(struct linux_binprm *bprm, unsigned long pos,
44231 if (size <= ARG_MAX)
44232 return page;
44233
44234 +#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
44235 + // only allow 512KB for argv+env on suid/sgid binaries
44236 + // to prevent easy ASLR exhaustion
44237 + if (((bprm->cred->euid != current_euid()) ||
44238 + (bprm->cred->egid != current_egid())) &&
44239 + (size > (512 * 1024))) {
44240 + put_page(page);
44241 + return NULL;
44242 + }
44243 +#endif
44244 +
44245 /*
44246 * Limit to 1/4-th the stack size for the argv+env strings.
44247 * This ensures that:
44248 @@ -277,6 +301,11 @@ static int __bprm_mm_init(struct linux_binprm *bprm)
44249 vma->vm_end = STACK_TOP_MAX;
44250 vma->vm_start = vma->vm_end - PAGE_SIZE;
44251 vma->vm_flags = VM_STACK_FLAGS | VM_STACK_INCOMPLETE_SETUP;
44252 +
44253 +#ifdef CONFIG_PAX_SEGMEXEC
44254 + vma->vm_flags &= ~(VM_EXEC | VM_MAYEXEC);
44255 +#endif
44256 +
44257 vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
44258 INIT_LIST_HEAD(&vma->anon_vma_chain);
44259
44260 @@ -287,6 +316,12 @@ static int __bprm_mm_init(struct linux_binprm *bprm)
44261 mm->stack_vm = mm->total_vm = 1;
44262 up_write(&mm->mmap_sem);
44263 bprm->p = vma->vm_end - sizeof(void *);
44264 +
44265 +#ifdef CONFIG_PAX_RANDUSTACK
44266 + if (randomize_va_space)
44267 + bprm->p ^= random32() & ~PAGE_MASK;
44268 +#endif
44269 +
44270 return 0;
44271 err:
44272 up_write(&mm->mmap_sem);
44273 @@ -395,19 +430,7 @@ err:
44274 return err;
44275 }
44276
44277 -struct user_arg_ptr {
44278 -#ifdef CONFIG_COMPAT
44279 - bool is_compat;
44280 -#endif
44281 - union {
44282 - const char __user *const __user *native;
44283 -#ifdef CONFIG_COMPAT
44284 - compat_uptr_t __user *compat;
44285 -#endif
44286 - } ptr;
44287 -};
44288 -
44289 -static const char __user *get_user_arg_ptr(struct user_arg_ptr argv, int nr)
44290 +const char __user *get_user_arg_ptr(struct user_arg_ptr argv, int nr)
44291 {
44292 const char __user *native;
44293
44294 @@ -416,14 +439,14 @@ static const char __user *get_user_arg_ptr(struct user_arg_ptr argv, int nr)
44295 compat_uptr_t compat;
44296
44297 if (get_user(compat, argv.ptr.compat + nr))
44298 - return ERR_PTR(-EFAULT);
44299 + return (const char __force_user *)ERR_PTR(-EFAULT);
44300
44301 return compat_ptr(compat);
44302 }
44303 #endif
44304
44305 if (get_user(native, argv.ptr.native + nr))
44306 - return ERR_PTR(-EFAULT);
44307 + return (const char __force_user *)ERR_PTR(-EFAULT);
44308
44309 return native;
44310 }
44311 @@ -442,7 +465,7 @@ static int count(struct user_arg_ptr argv, int max)
44312 if (!p)
44313 break;
44314
44315 - if (IS_ERR(p))
44316 + if (IS_ERR((const char __force_kernel *)p))
44317 return -EFAULT;
44318
44319 if (i++ >= max)
44320 @@ -476,7 +499,7 @@ static int copy_strings(int argc, struct user_arg_ptr argv,
44321
44322 ret = -EFAULT;
44323 str = get_user_arg_ptr(argv, argc);
44324 - if (IS_ERR(str))
44325 + if (IS_ERR((const char __force_kernel *)str))
44326 goto out;
44327
44328 len = strnlen_user(str, MAX_ARG_STRLEN);
44329 @@ -558,7 +581,7 @@ int copy_strings_kernel(int argc, const char *const *__argv,
44330 int r;
44331 mm_segment_t oldfs = get_fs();
44332 struct user_arg_ptr argv = {
44333 - .ptr.native = (const char __user *const __user *)__argv,
44334 + .ptr.native = (const char __force_user *const __force_user *)__argv,
44335 };
44336
44337 set_fs(KERNEL_DS);
44338 @@ -593,7 +616,8 @@ static int shift_arg_pages(struct vm_area_struct *vma, unsigned long shift)
44339 unsigned long new_end = old_end - shift;
44340 struct mmu_gather tlb;
44341
44342 - BUG_ON(new_start > new_end);
44343 + if (new_start >= new_end || new_start < mmap_min_addr)
44344 + return -ENOMEM;
44345
44346 /*
44347 * ensure there are no vmas between where we want to go
44348 @@ -602,6 +626,10 @@ static int shift_arg_pages(struct vm_area_struct *vma, unsigned long shift)
44349 if (vma != find_vma(mm, new_start))
44350 return -EFAULT;
44351
44352 +#ifdef CONFIG_PAX_SEGMEXEC
44353 + BUG_ON(pax_find_mirror_vma(vma));
44354 +#endif
44355 +
44356 /*
44357 * cover the whole range: [new_start, old_end)
44358 */
44359 @@ -682,10 +710,6 @@ int setup_arg_pages(struct linux_binprm *bprm,
44360 stack_top = arch_align_stack(stack_top);
44361 stack_top = PAGE_ALIGN(stack_top);
44362
44363 - if (unlikely(stack_top < mmap_min_addr) ||
44364 - unlikely(vma->vm_end - vma->vm_start >= stack_top - mmap_min_addr))
44365 - return -ENOMEM;
44366 -
44367 stack_shift = vma->vm_end - stack_top;
44368
44369 bprm->p -= stack_shift;
44370 @@ -697,8 +721,28 @@ int setup_arg_pages(struct linux_binprm *bprm,
44371 bprm->exec -= stack_shift;
44372
44373 down_write(&mm->mmap_sem);
44374 +
44375 + /* Move stack pages down in memory. */
44376 + if (stack_shift) {
44377 + ret = shift_arg_pages(vma, stack_shift);
44378 + if (ret)
44379 + goto out_unlock;
44380 + }
44381 +
44382 vm_flags = VM_STACK_FLAGS;
44383
44384 +#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
44385 + if (mm->pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) {
44386 + vm_flags &= ~VM_EXEC;
44387 +
44388 +#ifdef CONFIG_PAX_MPROTECT
44389 + if (mm->pax_flags & MF_PAX_MPROTECT)
44390 + vm_flags &= ~VM_MAYEXEC;
44391 +#endif
44392 +
44393 + }
44394 +#endif
44395 +
44396 /*
44397 * Adjust stack execute permissions; explicitly enable for
44398 * EXSTACK_ENABLE_X, disable for EXSTACK_DISABLE_X and leave alone
44399 @@ -717,13 +761,6 @@ int setup_arg_pages(struct linux_binprm *bprm,
44400 goto out_unlock;
44401 BUG_ON(prev != vma);
44402
44403 - /* Move stack pages down in memory. */
44404 - if (stack_shift) {
44405 - ret = shift_arg_pages(vma, stack_shift);
44406 - if (ret)
44407 - goto out_unlock;
44408 - }
44409 -
44410 /* mprotect_fixup is overkill to remove the temporary stack flags */
44411 vma->vm_flags &= ~VM_STACK_INCOMPLETE_SETUP;
44412
44413 @@ -781,6 +818,8 @@ struct file *open_exec(const char *name)
44414
44415 fsnotify_open(file);
44416
44417 + trace_open_exec(name);
44418 +
44419 err = deny_write_access(file);
44420 if (err)
44421 goto exit;
44422 @@ -804,7 +843,7 @@ int kernel_read(struct file *file, loff_t offset,
44423 old_fs = get_fs();
44424 set_fs(get_ds());
44425 /* The cast to a user pointer is valid due to the set_fs() */
44426 - result = vfs_read(file, (void __user *)addr, count, &pos);
44427 + result = vfs_read(file, (void __force_user *)addr, count, &pos);
44428 set_fs(old_fs);
44429 return result;
44430 }
44431 @@ -1257,7 +1296,7 @@ static int check_unsafe_exec(struct linux_binprm *bprm)
44432 }
44433 rcu_read_unlock();
44434
44435 - if (p->fs->users > n_fs) {
44436 + if (atomic_read(&p->fs->users) > n_fs) {
44437 bprm->unsafe |= LSM_UNSAFE_SHARE;
44438 } else {
44439 res = -EAGAIN;
44440 @@ -1460,6 +1499,28 @@ int search_binary_handler(struct linux_binprm *bprm,struct pt_regs *regs)
44441
44442 EXPORT_SYMBOL(search_binary_handler);
44443
44444 +#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
44445 +static DEFINE_PER_CPU(u64, exec_counter);
44446 +static int __init init_exec_counters(void)
44447 +{
44448 + unsigned int cpu;
44449 +
44450 + for_each_possible_cpu(cpu) {
44451 + per_cpu(exec_counter, cpu) = (u64)cpu;
44452 + }
44453 +
44454 + return 0;
44455 +}
44456 +early_initcall(init_exec_counters);
44457 +static inline void increment_exec_counter(void)
44458 +{
44459 + BUILD_BUG_ON(NR_CPUS > (1 << 16));
44460 + current->exec_id = this_cpu_add_return(exec_counter, 1 << 16);
44461 +}
44462 +#else
44463 +static inline void increment_exec_counter(void) {}
44464 +#endif
44465 +
44466 /*
44467 * sys_execve() executes a new program.
44468 */
44469 @@ -1468,6 +1529,11 @@ static int do_execve_common(const char *filename,
44470 struct user_arg_ptr envp,
44471 struct pt_regs *regs)
44472 {
44473 +#ifdef CONFIG_GRKERNSEC
44474 + struct file *old_exec_file;
44475 + struct acl_subject_label *old_acl;
44476 + struct rlimit old_rlim[RLIM_NLIMITS];
44477 +#endif
44478 struct linux_binprm *bprm;
44479 struct file *file;
44480 struct files_struct *displaced;
44481 @@ -1475,6 +1541,8 @@ static int do_execve_common(const char *filename,
44482 int retval;
44483 const struct cred *cred = current_cred();
44484
44485 + gr_learn_resource(current, RLIMIT_NPROC, atomic_read(&current->cred->user->processes), 1);
44486 +
44487 /*
44488 * We move the actual failure in case of RLIMIT_NPROC excess from
44489 * set*uid() to execve() because too many poorly written programs
44490 @@ -1515,12 +1583,27 @@ static int do_execve_common(const char *filename,
44491 if (IS_ERR(file))
44492 goto out_unmark;
44493
44494 + if (gr_ptrace_readexec(file, bprm->unsafe)) {
44495 + retval = -EPERM;
44496 + goto out_file;
44497 + }
44498 +
44499 sched_exec();
44500
44501 bprm->file = file;
44502 bprm->filename = filename;
44503 bprm->interp = filename;
44504
44505 + if (gr_process_user_ban()) {
44506 + retval = -EPERM;
44507 + goto out_file;
44508 + }
44509 +
44510 + if (!gr_acl_handle_execve(file->f_dentry, file->f_vfsmnt)) {
44511 + retval = -EACCES;
44512 + goto out_file;
44513 + }
44514 +
44515 retval = bprm_mm_init(bprm);
44516 if (retval)
44517 goto out_file;
44518 @@ -1537,24 +1620,65 @@ static int do_execve_common(const char *filename,
44519 if (retval < 0)
44520 goto out;
44521
44522 +#ifdef CONFIG_GRKERNSEC
44523 + old_acl = current->acl;
44524 + memcpy(old_rlim, current->signal->rlim, sizeof(old_rlim));
44525 + old_exec_file = current->exec_file;
44526 + get_file(file);
44527 + current->exec_file = file;
44528 +#endif
44529 +#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
44530 + /* limit suid stack to 8MB
44531 + we saved the old limits above and will restore them if this exec fails
44532 + */
44533 + if (((bprm->cred->euid != current_euid()) || (bprm->cred->egid != current_egid())) &&
44534 + (old_rlim[RLIMIT_STACK].rlim_cur > (8 * 1024 * 1024)))
44535 + current->signal->rlim[RLIMIT_STACK].rlim_cur = 8 * 1024 * 1024;
44536 +#endif
44537 +
44538 + if (!gr_tpe_allow(file)) {
44539 + retval = -EACCES;
44540 + goto out_fail;
44541 + }
44542 +
44543 + if (gr_check_crash_exec(file)) {
44544 + retval = -EACCES;
44545 + goto out_fail;
44546 + }
44547 +
44548 + retval = gr_set_proc_label(file->f_dentry, file->f_vfsmnt,
44549 + bprm->unsafe);
44550 + if (retval < 0)
44551 + goto out_fail;
44552 +
44553 retval = copy_strings_kernel(1, &bprm->filename, bprm);
44554 if (retval < 0)
44555 - goto out;
44556 + goto out_fail;
44557
44558 bprm->exec = bprm->p;
44559 retval = copy_strings(bprm->envc, envp, bprm);
44560 if (retval < 0)
44561 - goto out;
44562 + goto out_fail;
44563
44564 retval = copy_strings(bprm->argc, argv, bprm);
44565 if (retval < 0)
44566 - goto out;
44567 + goto out_fail;
44568 +
44569 + gr_log_chroot_exec(file->f_dentry, file->f_vfsmnt);
44570 +
44571 + gr_handle_exec_args(bprm, argv);
44572
44573 retval = search_binary_handler(bprm,regs);
44574 if (retval < 0)
44575 - goto out;
44576 + goto out_fail;
44577 +#ifdef CONFIG_GRKERNSEC
44578 + if (old_exec_file)
44579 + fput(old_exec_file);
44580 +#endif
44581
44582 /* execve succeeded */
44583 +
44584 + increment_exec_counter();
44585 current->fs->in_exec = 0;
44586 current->in_execve = 0;
44587 acct_update_integrals(current);
44588 @@ -1563,6 +1687,14 @@ static int do_execve_common(const char *filename,
44589 put_files_struct(displaced);
44590 return retval;
44591
44592 +out_fail:
44593 +#ifdef CONFIG_GRKERNSEC
44594 + current->acl = old_acl;
44595 + memcpy(current->signal->rlim, old_rlim, sizeof(old_rlim));
44596 + fput(current->exec_file);
44597 + current->exec_file = old_exec_file;
44598 +#endif
44599 +
44600 out:
44601 if (bprm->mm) {
44602 acct_arg_size(bprm, 0);
44603 @@ -1636,7 +1768,7 @@ static int expand_corename(struct core_name *cn)
44604 {
44605 char *old_corename = cn->corename;
44606
44607 - cn->size = CORENAME_MAX_SIZE * atomic_inc_return(&call_count);
44608 + cn->size = CORENAME_MAX_SIZE * atomic_inc_return_unchecked(&call_count);
44609 cn->corename = krealloc(old_corename, cn->size, GFP_KERNEL);
44610
44611 if (!cn->corename) {
44612 @@ -1733,7 +1865,7 @@ static int format_corename(struct core_name *cn, long signr)
44613 int pid_in_pattern = 0;
44614 int err = 0;
44615
44616 - cn->size = CORENAME_MAX_SIZE * atomic_read(&call_count);
44617 + cn->size = CORENAME_MAX_SIZE * atomic_read_unchecked(&call_count);
44618 cn->corename = kmalloc(cn->size, GFP_KERNEL);
44619 cn->used = 0;
44620
44621 @@ -1830,6 +1962,250 @@ out:
44622 return ispipe;
44623 }
44624
44625 +int pax_check_flags(unsigned long *flags)
44626 +{
44627 + int retval = 0;
44628 +
44629 +#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_SEGMEXEC)
44630 + if (*flags & MF_PAX_SEGMEXEC)
44631 + {
44632 + *flags &= ~MF_PAX_SEGMEXEC;
44633 + retval = -EINVAL;
44634 + }
44635 +#endif
44636 +
44637 + if ((*flags & MF_PAX_PAGEEXEC)
44638 +
44639 +#ifdef CONFIG_PAX_PAGEEXEC
44640 + && (*flags & MF_PAX_SEGMEXEC)
44641 +#endif
44642 +
44643 + )
44644 + {
44645 + *flags &= ~MF_PAX_PAGEEXEC;
44646 + retval = -EINVAL;
44647 + }
44648 +
44649 + if ((*flags & MF_PAX_MPROTECT)
44650 +
44651 +#ifdef CONFIG_PAX_MPROTECT
44652 + && !(*flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC))
44653 +#endif
44654 +
44655 + )
44656 + {
44657 + *flags &= ~MF_PAX_MPROTECT;
44658 + retval = -EINVAL;
44659 + }
44660 +
44661 + if ((*flags & MF_PAX_EMUTRAMP)
44662 +
44663 +#ifdef CONFIG_PAX_EMUTRAMP
44664 + && !(*flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC))
44665 +#endif
44666 +
44667 + )
44668 + {
44669 + *flags &= ~MF_PAX_EMUTRAMP;
44670 + retval = -EINVAL;
44671 + }
44672 +
44673 + return retval;
44674 +}
44675 +
44676 +EXPORT_SYMBOL(pax_check_flags);
44677 +
44678 +#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
44679 +void pax_report_fault(struct pt_regs *regs, void *pc, void *sp)
44680 +{
44681 + struct task_struct *tsk = current;
44682 + struct mm_struct *mm = current->mm;
44683 + char *buffer_exec = (char *)__get_free_page(GFP_KERNEL);
44684 + char *buffer_fault = (char *)__get_free_page(GFP_KERNEL);
44685 + char *path_exec = NULL;
44686 + char *path_fault = NULL;
44687 + unsigned long start = 0UL, end = 0UL, offset = 0UL;
44688 +
44689 + if (buffer_exec && buffer_fault) {
44690 + struct vm_area_struct *vma, *vma_exec = NULL, *vma_fault = NULL;
44691 +
44692 + down_read(&mm->mmap_sem);
44693 + vma = mm->mmap;
44694 + while (vma && (!vma_exec || !vma_fault)) {
44695 + if ((vma->vm_flags & VM_EXECUTABLE) && vma->vm_file)
44696 + vma_exec = vma;
44697 + if (vma->vm_start <= (unsigned long)pc && (unsigned long)pc < vma->vm_end)
44698 + vma_fault = vma;
44699 + vma = vma->vm_next;
44700 + }
44701 + if (vma_exec) {
44702 + path_exec = d_path(&vma_exec->vm_file->f_path, buffer_exec, PAGE_SIZE);
44703 + if (IS_ERR(path_exec))
44704 + path_exec = "<path too long>";
44705 + else {
44706 + path_exec = mangle_path(buffer_exec, path_exec, "\t\n\\");
44707 + if (path_exec) {
44708 + *path_exec = 0;
44709 + path_exec = buffer_exec;
44710 + } else
44711 + path_exec = "<path too long>";
44712 + }
44713 + }
44714 + if (vma_fault) {
44715 + start = vma_fault->vm_start;
44716 + end = vma_fault->vm_end;
44717 + offset = vma_fault->vm_pgoff << PAGE_SHIFT;
44718 + if (vma_fault->vm_file) {
44719 + path_fault = d_path(&vma_fault->vm_file->f_path, buffer_fault, PAGE_SIZE);
44720 + if (IS_ERR(path_fault))
44721 + path_fault = "<path too long>";
44722 + else {
44723 + path_fault = mangle_path(buffer_fault, path_fault, "\t\n\\");
44724 + if (path_fault) {
44725 + *path_fault = 0;
44726 + path_fault = buffer_fault;
44727 + } else
44728 + path_fault = "<path too long>";
44729 + }
44730 + } else
44731 + path_fault = "<anonymous mapping>";
44732 + }
44733 + up_read(&mm->mmap_sem);
44734 + }
44735 + if (tsk->signal->curr_ip)
44736 + printk(KERN_ERR "PAX: From %pI4: execution attempt in: %s, %08lx-%08lx %08lx\n", &tsk->signal->curr_ip, path_fault, start, end, offset);
44737 + else
44738 + printk(KERN_ERR "PAX: execution attempt in: %s, %08lx-%08lx %08lx\n", path_fault, start, end, offset);
44739 + printk(KERN_ERR "PAX: terminating task: %s(%s):%d, uid/euid: %u/%u, "
44740 + "PC: %p, SP: %p\n", path_exec, tsk->comm, task_pid_nr(tsk),
44741 + task_uid(tsk), task_euid(tsk), pc, sp);
44742 + free_page((unsigned long)buffer_exec);
44743 + free_page((unsigned long)buffer_fault);
44744 + pax_report_insns(regs, pc, sp);
44745 + do_coredump(SIGKILL, SIGKILL, regs);
44746 +}
44747 +#endif
44748 +
44749 +#ifdef CONFIG_PAX_REFCOUNT
44750 +void pax_report_refcount_overflow(struct pt_regs *regs)
44751 +{
44752 + if (current->signal->curr_ip)
44753 + printk(KERN_ERR "PAX: From %pI4: refcount overflow detected in: %s:%d, uid/euid: %u/%u\n",
44754 + &current->signal->curr_ip, current->comm, task_pid_nr(current), current_uid(), current_euid());
44755 + else
44756 + printk(KERN_ERR "PAX: refcount overflow detected in: %s:%d, uid/euid: %u/%u\n",
44757 + current->comm, task_pid_nr(current), current_uid(), current_euid());
44758 + print_symbol(KERN_ERR "PAX: refcount overflow occured at: %s\n", instruction_pointer(regs));
44759 + show_regs(regs);
44760 + force_sig_info(SIGKILL, SEND_SIG_FORCED, current);
44761 +}
44762 +#endif
44763 +
44764 +#ifdef CONFIG_PAX_USERCOPY
44765 +/* 0: not at all, 1: fully, 2: fully inside frame, -1: partially (implies an error) */
44766 +static noinline int check_stack_object(const void *obj, unsigned long len)
44767 +{
44768 + const void * const stack = task_stack_page(current);
44769 + const void * const stackend = stack + THREAD_SIZE;
44770 +
44771 +#if defined(CONFIG_FRAME_POINTER) && defined(CONFIG_X86)
44772 + const void *frame = NULL;
44773 + const void *oldframe;
44774 +#endif
44775 +
44776 + if (obj + len < obj)
44777 + return -1;
44778 +
44779 + if (obj + len <= stack || stackend <= obj)
44780 + return 0;
44781 +
44782 + if (obj < stack || stackend < obj + len)
44783 + return -1;
44784 +
44785 +#if defined(CONFIG_FRAME_POINTER) && defined(CONFIG_X86)
44786 + oldframe = __builtin_frame_address(1);
44787 + if (oldframe)
44788 + frame = __builtin_frame_address(2);
44789 + /*
44790 + low ----------------------------------------------> high
44791 + [saved bp][saved ip][args][local vars][saved bp][saved ip]
44792 + ^----------------^
44793 + allow copies only within here
44794 + */
44795 + while (stack <= frame && frame < stackend) {
44796 + /* if obj + len extends past the last frame, this
44797 + check won't pass and the next frame will be 0,
44798 + causing us to bail out and correctly report
44799 + the copy as invalid
44800 + */
44801 + if (obj + len <= frame)
44802 + return obj >= oldframe + 2 * sizeof(void *) ? 2 : -1;
44803 + oldframe = frame;
44804 + frame = *(const void * const *)frame;
44805 + }
44806 + return -1;
44807 +#else
44808 + return 1;
44809 +#endif
44810 +}
44811 +
44812 +static __noreturn void pax_report_usercopy(const void *ptr, unsigned long len, bool to, const char *type)
44813 +{
44814 + if (current->signal->curr_ip)
44815 + printk(KERN_ERR "PAX: From %pI4: kernel memory %s attempt detected %s %p (%s) (%lu bytes)\n",
44816 + &current->signal->curr_ip, to ? "leak" : "overwrite", to ? "from" : "to", ptr, type ? : "unknown", len);
44817 + else
44818 + printk(KERN_ERR "PAX: kernel memory %s attempt detected %s %p (%s) (%lu bytes)\n",
44819 + to ? "leak" : "overwrite", to ? "from" : "to", ptr, type ? : "unknown", len);
44820 + dump_stack();
44821 + gr_handle_kernel_exploit();
44822 + do_group_exit(SIGKILL);
44823 +}
44824 +#endif
44825 +
44826 +void check_object_size(const void *ptr, unsigned long n, bool to)
44827 +{
44828 +
44829 +#ifdef CONFIG_PAX_USERCOPY
44830 + const char *type;
44831 +
44832 + if (!n)
44833 + return;
44834 +
44835 + type = check_heap_object(ptr, n, to);
44836 + if (!type) {
44837 + if (check_stack_object(ptr, n) != -1)
44838 + return;
44839 + type = "<process stack>";
44840 + }
44841 +
44842 + pax_report_usercopy(ptr, n, to, type);
44843 +#endif
44844 +
44845 +}
44846 +EXPORT_SYMBOL(check_object_size);
44847 +
44848 +#ifdef CONFIG_PAX_MEMORY_STACKLEAK
44849 +void pax_track_stack(void)
44850 +{
44851 + unsigned long sp = (unsigned long)&sp;
44852 + if (sp < current_thread_info()->lowest_stack &&
44853 + sp > (unsigned long)task_stack_page(current))
44854 + current_thread_info()->lowest_stack = sp;
44855 +}
44856 +EXPORT_SYMBOL(pax_track_stack);
44857 +#endif
44858 +
44859 +#ifdef CONFIG_PAX_SIZE_OVERFLOW
44860 +void report_size_overflow(const char *file, unsigned int line, const char *func, const char *ssa_name)
44861 +{
44862 + printk(KERN_ERR "PAX: size overflow detected in function %s %s:%u %s", func, file, line, ssa_name);
44863 + dump_stack();
44864 + do_group_exit(SIGKILL);
44865 +}
44866 +EXPORT_SYMBOL(report_size_overflow);
44867 +#endif
44868 +
44869 static int zap_process(struct task_struct *start, int exit_code)
44870 {
44871 struct task_struct *t;
44872 @@ -2002,17 +2378,17 @@ static void coredump_finish(struct mm_struct *mm)
44873 void set_dumpable(struct mm_struct *mm, int value)
44874 {
44875 switch (value) {
44876 - case 0:
44877 + case SUID_DUMPABLE_DISABLED:
44878 clear_bit(MMF_DUMPABLE, &mm->flags);
44879 smp_wmb();
44880 clear_bit(MMF_DUMP_SECURELY, &mm->flags);
44881 break;
44882 - case 1:
44883 + case SUID_DUMPABLE_ENABLED:
44884 set_bit(MMF_DUMPABLE, &mm->flags);
44885 smp_wmb();
44886 clear_bit(MMF_DUMP_SECURELY, &mm->flags);
44887 break;
44888 - case 2:
44889 + case SUID_DUMPABLE_SAFE:
44890 set_bit(MMF_DUMP_SECURELY, &mm->flags);
44891 smp_wmb();
44892 set_bit(MMF_DUMPABLE, &mm->flags);
44893 @@ -2025,7 +2401,7 @@ static int __get_dumpable(unsigned long mm_flags)
44894 int ret;
44895
44896 ret = mm_flags & MMF_DUMPABLE_MASK;
44897 - return (ret >= 2) ? 2 : ret;
44898 + return (ret > SUID_DUMPABLE_ENABLED) ? SUID_DUMPABLE_SAFE : ret;
44899 }
44900
44901 int get_dumpable(struct mm_struct *mm)
44902 @@ -2040,17 +2416,17 @@ static void wait_for_dump_helpers(struct file *file)
44903 pipe = file->f_path.dentry->d_inode->i_pipe;
44904
44905 pipe_lock(pipe);
44906 - pipe->readers++;
44907 - pipe->writers--;
44908 + atomic_inc(&pipe->readers);
44909 + atomic_dec(&pipe->writers);
44910
44911 - while ((pipe->readers > 1) && (!signal_pending(current))) {
44912 + while ((atomic_read(&pipe->readers) > 1) && (!signal_pending(current))) {
44913 wake_up_interruptible_sync(&pipe->wait);
44914 kill_fasync(&pipe->fasync_readers, SIGIO, POLL_IN);
44915 pipe_wait(pipe);
44916 }
44917
44918 - pipe->readers--;
44919 - pipe->writers++;
44920 + atomic_dec(&pipe->readers);
44921 + atomic_inc(&pipe->writers);
44922 pipe_unlock(pipe);
44923
44924 }
44925 @@ -2111,7 +2487,8 @@ void do_coredump(long signr, int exit_code, struct pt_regs *regs)
44926 int retval = 0;
44927 int flag = 0;
44928 int ispipe;
44929 - static atomic_t core_dump_count = ATOMIC_INIT(0);
44930 + bool need_nonrelative = false;
44931 + static atomic_unchecked_t core_dump_count = ATOMIC_INIT(0);
44932 struct coredump_params cprm = {
44933 .signr = signr,
44934 .regs = regs,
44935 @@ -2126,6 +2503,9 @@ void do_coredump(long signr, int exit_code, struct pt_regs *regs)
44936
44937 audit_core_dumps(signr);
44938
44939 + if (signr == SIGSEGV || signr == SIGBUS || signr == SIGKILL || signr == SIGILL)
44940 + gr_handle_brute_attach(current, cprm.mm_flags);
44941 +
44942 binfmt = mm->binfmt;
44943 if (!binfmt || !binfmt->core_dump)
44944 goto fail;
44945 @@ -2136,14 +2516,16 @@ void do_coredump(long signr, int exit_code, struct pt_regs *regs)
44946 if (!cred)
44947 goto fail;
44948 /*
44949 - * We cannot trust fsuid as being the "true" uid of the
44950 - * process nor do we know its entire history. We only know it
44951 - * was tainted so we dump it as root in mode 2.
44952 + * We cannot trust fsuid as being the "true" uid of the process
44953 + * nor do we know its entire history. We only know it was tainted
44954 + * so we dump it as root in mode 2, and only into a controlled
44955 + * environment (pipe handler or fully qualified path).
44956 */
44957 - if (__get_dumpable(cprm.mm_flags) == 2) {
44958 + if (__get_dumpable(cprm.mm_flags) == SUID_DUMPABLE_SAFE) {
44959 /* Setuid core dump mode */
44960 flag = O_EXCL; /* Stop rewrite attacks */
44961 cred->fsuid = GLOBAL_ROOT_UID; /* Dump root private */
44962 + need_nonrelative = true;
44963 }
44964
44965 retval = coredump_wait(exit_code, &core_state);
44966 @@ -2193,7 +2575,7 @@ void do_coredump(long signr, int exit_code, struct pt_regs *regs)
44967 }
44968 cprm.limit = RLIM_INFINITY;
44969
44970 - dump_count = atomic_inc_return(&core_dump_count);
44971 + dump_count = atomic_inc_return_unchecked(&core_dump_count);
44972 if (core_pipe_limit && (core_pipe_limit < dump_count)) {
44973 printk(KERN_WARNING "Pid %d(%s) over core_pipe_limit\n",
44974 task_tgid_vnr(current), current->comm);
44975 @@ -2220,9 +2602,19 @@ void do_coredump(long signr, int exit_code, struct pt_regs *regs)
44976 } else {
44977 struct inode *inode;
44978
44979 + gr_learn_resource(current, RLIMIT_CORE, binfmt->min_coredump, 1);
44980 +
44981 if (cprm.limit < binfmt->min_coredump)
44982 goto fail_unlock;
44983
44984 + if (need_nonrelative && cn.corename[0] != '/') {
44985 + printk(KERN_WARNING "Pid %d(%s) can only dump core "\
44986 + "to fully qualified path!\n",
44987 + task_tgid_vnr(current), current->comm);
44988 + printk(KERN_WARNING "Skipping core dump\n");
44989 + goto fail_unlock;
44990 + }
44991 +
44992 cprm.file = filp_open(cn.corename,
44993 O_CREAT | 2 | O_NOFOLLOW | O_LARGEFILE | flag,
44994 0600);
44995 @@ -2263,7 +2655,7 @@ close_fail:
44996 filp_close(cprm.file, NULL);
44997 fail_dropcount:
44998 if (ispipe)
44999 - atomic_dec(&core_dump_count);
45000 + atomic_dec_unchecked(&core_dump_count);
45001 fail_unlock:
45002 kfree(cn.corename);
45003 fail_corename:
45004 @@ -2282,7 +2674,7 @@ fail:
45005 */
45006 int dump_write(struct file *file, const void *addr, int nr)
45007 {
45008 - return access_ok(VERIFY_READ, addr, nr) && file->f_op->write(file, addr, nr, &file->f_pos) == nr;
45009 + return access_ok(VERIFY_READ, addr, nr) && file->f_op->write(file, (const char __force_user *)addr, nr, &file->f_pos) == nr;
45010 }
45011 EXPORT_SYMBOL(dump_write);
45012
45013 diff --git a/fs/ext2/balloc.c b/fs/ext2/balloc.c
45014 index 1c36139..cf6b350 100644
45015 --- a/fs/ext2/balloc.c
45016 +++ b/fs/ext2/balloc.c
45017 @@ -1190,10 +1190,10 @@ static int ext2_has_free_blocks(struct ext2_sb_info *sbi)
45018
45019 free_blocks = percpu_counter_read_positive(&sbi->s_freeblocks_counter);
45020 root_blocks = le32_to_cpu(sbi->s_es->s_r_blocks_count);
45021 - if (free_blocks < root_blocks + 1 && !capable(CAP_SYS_RESOURCE) &&
45022 + if (free_blocks < root_blocks + 1 &&
45023 !uid_eq(sbi->s_resuid, current_fsuid()) &&
45024 (gid_eq(sbi->s_resgid, GLOBAL_ROOT_GID) ||
45025 - !in_group_p (sbi->s_resgid))) {
45026 + !in_group_p (sbi->s_resgid)) && !capable_nolog(CAP_SYS_RESOURCE)) {
45027 return 0;
45028 }
45029 return 1;
45030 diff --git a/fs/ext3/balloc.c b/fs/ext3/balloc.c
45031 index 25cd608..9ed5294 100644
45032 --- a/fs/ext3/balloc.c
45033 +++ b/fs/ext3/balloc.c
45034 @@ -1438,10 +1438,10 @@ static int ext3_has_free_blocks(struct ext3_sb_info *sbi, int use_reservation)
45035
45036 free_blocks = percpu_counter_read_positive(&sbi->s_freeblocks_counter);
45037 root_blocks = le32_to_cpu(sbi->s_es->s_r_blocks_count);
45038 - if (free_blocks < root_blocks + 1 && !capable(CAP_SYS_RESOURCE) &&
45039 + if (free_blocks < root_blocks + 1 &&
45040 !use_reservation && !uid_eq(sbi->s_resuid, current_fsuid()) &&
45041 (gid_eq(sbi->s_resgid, GLOBAL_ROOT_GID) ||
45042 - !in_group_p (sbi->s_resgid))) {
45043 + !in_group_p (sbi->s_resgid)) && !capable_nolog(CAP_SYS_RESOURCE)) {
45044 return 0;
45045 }
45046 return 1;
45047 diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c
45048 index d23b31c..0585239 100644
45049 --- a/fs/ext4/balloc.c
45050 +++ b/fs/ext4/balloc.c
45051 @@ -488,8 +488,8 @@ static int ext4_has_free_clusters(struct ext4_sb_info *sbi,
45052 /* Hm, nope. Are (enough) root reserved clusters available? */
45053 if (uid_eq(sbi->s_resuid, current_fsuid()) ||
45054 (!gid_eq(sbi->s_resgid, GLOBAL_ROOT_GID) && in_group_p(sbi->s_resgid)) ||
45055 - capable(CAP_SYS_RESOURCE) ||
45056 - (flags & EXT4_MB_USE_ROOT_BLOCKS)) {
45057 + (flags & EXT4_MB_USE_ROOT_BLOCKS) ||
45058 + capable_nolog(CAP_SYS_RESOURCE)) {
45059
45060 if (free_clusters >= (nclusters + dirty_clusters))
45061 return 1;
45062 diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
45063 index 01434f2..bd995b4 100644
45064 --- a/fs/ext4/ext4.h
45065 +++ b/fs/ext4/ext4.h
45066 @@ -1246,19 +1246,19 @@ struct ext4_sb_info {
45067 unsigned long s_mb_last_start;
45068
45069 /* stats for buddy allocator */
45070 - atomic_t s_bal_reqs; /* number of reqs with len > 1 */
45071 - atomic_t s_bal_success; /* we found long enough chunks */
45072 - atomic_t s_bal_allocated; /* in blocks */
45073 - atomic_t s_bal_ex_scanned; /* total extents scanned */
45074 - atomic_t s_bal_goals; /* goal hits */
45075 - atomic_t s_bal_breaks; /* too long searches */
45076 - atomic_t s_bal_2orders; /* 2^order hits */
45077 + atomic_unchecked_t s_bal_reqs; /* number of reqs with len > 1 */
45078 + atomic_unchecked_t s_bal_success; /* we found long enough chunks */
45079 + atomic_unchecked_t s_bal_allocated; /* in blocks */
45080 + atomic_unchecked_t s_bal_ex_scanned; /* total extents scanned */
45081 + atomic_unchecked_t s_bal_goals; /* goal hits */
45082 + atomic_unchecked_t s_bal_breaks; /* too long searches */
45083 + atomic_unchecked_t s_bal_2orders; /* 2^order hits */
45084 spinlock_t s_bal_lock;
45085 unsigned long s_mb_buddies_generated;
45086 unsigned long long s_mb_generation_time;
45087 - atomic_t s_mb_lost_chunks;
45088 - atomic_t s_mb_preallocated;
45089 - atomic_t s_mb_discarded;
45090 + atomic_unchecked_t s_mb_lost_chunks;
45091 + atomic_unchecked_t s_mb_preallocated;
45092 + atomic_unchecked_t s_mb_discarded;
45093 atomic_t s_lock_busy;
45094
45095 /* locality groups */
45096 diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
45097 index 1cd6994..5799d45 100644
45098 --- a/fs/ext4/mballoc.c
45099 +++ b/fs/ext4/mballoc.c
45100 @@ -1747,7 +1747,7 @@ void ext4_mb_simple_scan_group(struct ext4_allocation_context *ac,
45101 BUG_ON(ac->ac_b_ex.fe_len != ac->ac_g_ex.fe_len);
45102
45103 if (EXT4_SB(sb)->s_mb_stats)
45104 - atomic_inc(&EXT4_SB(sb)->s_bal_2orders);
45105 + atomic_inc_unchecked(&EXT4_SB(sb)->s_bal_2orders);
45106
45107 break;
45108 }
45109 @@ -2041,7 +2041,7 @@ repeat:
45110 ac->ac_status = AC_STATUS_CONTINUE;
45111 ac->ac_flags |= EXT4_MB_HINT_FIRST;
45112 cr = 3;
45113 - atomic_inc(&sbi->s_mb_lost_chunks);
45114 + atomic_inc_unchecked(&sbi->s_mb_lost_chunks);
45115 goto repeat;
45116 }
45117 }
45118 @@ -2545,25 +2545,25 @@ int ext4_mb_release(struct super_block *sb)
45119 if (sbi->s_mb_stats) {
45120 ext4_msg(sb, KERN_INFO,
45121 "mballoc: %u blocks %u reqs (%u success)",
45122 - atomic_read(&sbi->s_bal_allocated),
45123 - atomic_read(&sbi->s_bal_reqs),
45124 - atomic_read(&sbi->s_bal_success));
45125 + atomic_read_unchecked(&sbi->s_bal_allocated),
45126 + atomic_read_unchecked(&sbi->s_bal_reqs),
45127 + atomic_read_unchecked(&sbi->s_bal_success));
45128 ext4_msg(sb, KERN_INFO,
45129 "mballoc: %u extents scanned, %u goal hits, "
45130 "%u 2^N hits, %u breaks, %u lost",
45131 - atomic_read(&sbi->s_bal_ex_scanned),
45132 - atomic_read(&sbi->s_bal_goals),
45133 - atomic_read(&sbi->s_bal_2orders),
45134 - atomic_read(&sbi->s_bal_breaks),
45135 - atomic_read(&sbi->s_mb_lost_chunks));
45136 + atomic_read_unchecked(&sbi->s_bal_ex_scanned),
45137 + atomic_read_unchecked(&sbi->s_bal_goals),
45138 + atomic_read_unchecked(&sbi->s_bal_2orders),
45139 + atomic_read_unchecked(&sbi->s_bal_breaks),
45140 + atomic_read_unchecked(&sbi->s_mb_lost_chunks));
45141 ext4_msg(sb, KERN_INFO,
45142 "mballoc: %lu generated and it took %Lu",
45143 sbi->s_mb_buddies_generated,
45144 sbi->s_mb_generation_time);
45145 ext4_msg(sb, KERN_INFO,
45146 "mballoc: %u preallocated, %u discarded",
45147 - atomic_read(&sbi->s_mb_preallocated),
45148 - atomic_read(&sbi->s_mb_discarded));
45149 + atomic_read_unchecked(&sbi->s_mb_preallocated),
45150 + atomic_read_unchecked(&sbi->s_mb_discarded));
45151 }
45152
45153 free_percpu(sbi->s_locality_groups);
45154 @@ -3047,16 +3047,16 @@ static void ext4_mb_collect_stats(struct ext4_allocation_context *ac)
45155 struct ext4_sb_info *sbi = EXT4_SB(ac->ac_sb);
45156
45157 if (sbi->s_mb_stats && ac->ac_g_ex.fe_len > 1) {
45158 - atomic_inc(&sbi->s_bal_reqs);
45159 - atomic_add(ac->ac_b_ex.fe_len, &sbi->s_bal_allocated);
45160 + atomic_inc_unchecked(&sbi->s_bal_reqs);
45161 + atomic_add_unchecked(ac->ac_b_ex.fe_len, &sbi->s_bal_allocated);
45162 if (ac->ac_b_ex.fe_len >= ac->ac_o_ex.fe_len)
45163 - atomic_inc(&sbi->s_bal_success);
45164 - atomic_add(ac->ac_found, &sbi->s_bal_ex_scanned);
45165 + atomic_inc_unchecked(&sbi->s_bal_success);
45166 + atomic_add_unchecked(ac->ac_found, &sbi->s_bal_ex_scanned);
45167 if (ac->ac_g_ex.fe_start == ac->ac_b_ex.fe_start &&
45168 ac->ac_g_ex.fe_group == ac->ac_b_ex.fe_group)
45169 - atomic_inc(&sbi->s_bal_goals);
45170 + atomic_inc_unchecked(&sbi->s_bal_goals);
45171 if (ac->ac_found > sbi->s_mb_max_to_scan)
45172 - atomic_inc(&sbi->s_bal_breaks);
45173 + atomic_inc_unchecked(&sbi->s_bal_breaks);
45174 }
45175
45176 if (ac->ac_op == EXT4_MB_HISTORY_ALLOC)
45177 @@ -3456,7 +3456,7 @@ ext4_mb_new_inode_pa(struct ext4_allocation_context *ac)
45178 trace_ext4_mb_new_inode_pa(ac, pa);
45179
45180 ext4_mb_use_inode_pa(ac, pa);
45181 - atomic_add(pa->pa_free, &sbi->s_mb_preallocated);
45182 + atomic_add_unchecked(pa->pa_free, &sbi->s_mb_preallocated);
45183
45184 ei = EXT4_I(ac->ac_inode);
45185 grp = ext4_get_group_info(sb, ac->ac_b_ex.fe_group);
45186 @@ -3516,7 +3516,7 @@ ext4_mb_new_group_pa(struct ext4_allocation_context *ac)
45187 trace_ext4_mb_new_group_pa(ac, pa);
45188
45189 ext4_mb_use_group_pa(ac, pa);
45190 - atomic_add(pa->pa_free, &EXT4_SB(sb)->s_mb_preallocated);
45191 + atomic_add_unchecked(pa->pa_free, &EXT4_SB(sb)->s_mb_preallocated);
45192
45193 grp = ext4_get_group_info(sb, ac->ac_b_ex.fe_group);
45194 lg = ac->ac_lg;
45195 @@ -3605,7 +3605,7 @@ ext4_mb_release_inode_pa(struct ext4_buddy *e4b, struct buffer_head *bitmap_bh,
45196 * from the bitmap and continue.
45197 */
45198 }
45199 - atomic_add(free, &sbi->s_mb_discarded);
45200 + atomic_add_unchecked(free, &sbi->s_mb_discarded);
45201
45202 return err;
45203 }
45204 @@ -3623,7 +3623,7 @@ ext4_mb_release_group_pa(struct ext4_buddy *e4b,
45205 ext4_get_group_no_and_offset(sb, pa->pa_pstart, &group, &bit);
45206 BUG_ON(group != e4b->bd_group && pa->pa_len != 0);
45207 mb_free_blocks(pa->pa_inode, e4b, bit, pa->pa_len);
45208 - atomic_add(pa->pa_len, &EXT4_SB(sb)->s_mb_discarded);
45209 + atomic_add_unchecked(pa->pa_len, &EXT4_SB(sb)->s_mb_discarded);
45210 trace_ext4_mballoc_discard(sb, NULL, group, bit, pa->pa_len);
45211
45212 return 0;
45213 diff --git a/fs/fcntl.c b/fs/fcntl.c
45214 index 81b70e6..d9ae6cf 100644
45215 --- a/fs/fcntl.c
45216 +++ b/fs/fcntl.c
45217 @@ -224,6 +224,11 @@ int __f_setown(struct file *filp, struct pid *pid, enum pid_type type,
45218 if (err)
45219 return err;
45220
45221 + if (gr_handle_chroot_fowner(pid, type))
45222 + return -ENOENT;
45223 + if (gr_check_protected_task_fowner(pid, type))
45224 + return -EACCES;
45225 +
45226 f_modown(filp, pid, type, force);
45227 return 0;
45228 }
45229 @@ -266,7 +271,7 @@ pid_t f_getown(struct file *filp)
45230
45231 static int f_setown_ex(struct file *filp, unsigned long arg)
45232 {
45233 - struct f_owner_ex * __user owner_p = (void * __user)arg;
45234 + struct f_owner_ex __user *owner_p = (void __user *)arg;
45235 struct f_owner_ex owner;
45236 struct pid *pid;
45237 int type;
45238 @@ -306,7 +311,7 @@ static int f_setown_ex(struct file *filp, unsigned long arg)
45239
45240 static int f_getown_ex(struct file *filp, unsigned long arg)
45241 {
45242 - struct f_owner_ex * __user owner_p = (void * __user)arg;
45243 + struct f_owner_ex __user *owner_p = (void __user *)arg;
45244 struct f_owner_ex owner;
45245 int ret = 0;
45246
45247 @@ -348,6 +353,7 @@ static long do_fcntl(int fd, unsigned int cmd, unsigned long arg,
45248 switch (cmd) {
45249 case F_DUPFD:
45250 case F_DUPFD_CLOEXEC:
45251 + gr_learn_resource(current, RLIMIT_NOFILE, arg, 0);
45252 if (arg >= rlimit(RLIMIT_NOFILE))
45253 break;
45254 err = alloc_fd(arg, cmd == F_DUPFD_CLOEXEC ? O_CLOEXEC : 0);
45255 diff --git a/fs/fifo.c b/fs/fifo.c
45256 index cf6f434..3d7942c 100644
45257 --- a/fs/fifo.c
45258 +++ b/fs/fifo.c
45259 @@ -59,10 +59,10 @@ static int fifo_open(struct inode *inode, struct file *filp)
45260 */
45261 filp->f_op = &read_pipefifo_fops;
45262 pipe->r_counter++;
45263 - if (pipe->readers++ == 0)
45264 + if (atomic_inc_return(&pipe->readers) == 1)
45265 wake_up_partner(inode);
45266
45267 - if (!pipe->writers) {
45268 + if (!atomic_read(&pipe->writers)) {
45269 if ((filp->f_flags & O_NONBLOCK)) {
45270 /* suppress POLLHUP until we have
45271 * seen a writer */
45272 @@ -81,15 +81,15 @@ static int fifo_open(struct inode *inode, struct file *filp)
45273 * errno=ENXIO when there is no process reading the FIFO.
45274 */
45275 ret = -ENXIO;
45276 - if ((filp->f_flags & O_NONBLOCK) && !pipe->readers)
45277 + if ((filp->f_flags & O_NONBLOCK) && !atomic_read(&pipe->readers))
45278 goto err;
45279
45280 filp->f_op = &write_pipefifo_fops;
45281 pipe->w_counter++;
45282 - if (!pipe->writers++)
45283 + if (atomic_inc_return(&pipe->writers) == 1)
45284 wake_up_partner(inode);
45285
45286 - if (!pipe->readers) {
45287 + if (!atomic_read(&pipe->readers)) {
45288 if (wait_for_partner(inode, &pipe->r_counter))
45289 goto err_wr;
45290 }
45291 @@ -104,11 +104,11 @@ static int fifo_open(struct inode *inode, struct file *filp)
45292 */
45293 filp->f_op = &rdwr_pipefifo_fops;
45294
45295 - pipe->readers++;
45296 - pipe->writers++;
45297 + atomic_inc(&pipe->readers);
45298 + atomic_inc(&pipe->writers);
45299 pipe->r_counter++;
45300 pipe->w_counter++;
45301 - if (pipe->readers == 1 || pipe->writers == 1)
45302 + if (atomic_read(&pipe->readers) == 1 || atomic_read(&pipe->writers) == 1)
45303 wake_up_partner(inode);
45304 break;
45305
45306 @@ -122,19 +122,19 @@ static int fifo_open(struct inode *inode, struct file *filp)
45307 return 0;
45308
45309 err_rd:
45310 - if (!--pipe->readers)
45311 + if (atomic_dec_and_test(&pipe->readers))
45312 wake_up_interruptible(&pipe->wait);
45313 ret = -ERESTARTSYS;
45314 goto err;
45315
45316 err_wr:
45317 - if (!--pipe->writers)
45318 + if (atomic_dec_and_test(&pipe->writers))
45319 wake_up_interruptible(&pipe->wait);
45320 ret = -ERESTARTSYS;
45321 goto err;
45322
45323 err:
45324 - if (!pipe->readers && !pipe->writers)
45325 + if (!atomic_read(&pipe->readers) && !atomic_read(&pipe->writers))
45326 free_pipe_info(inode);
45327
45328 err_nocleanup:
45329 diff --git a/fs/file.c b/fs/file.c
45330 index ba3f605..fade102 100644
45331 --- a/fs/file.c
45332 +++ b/fs/file.c
45333 @@ -15,6 +15,7 @@
45334 #include <linux/slab.h>
45335 #include <linux/vmalloc.h>
45336 #include <linux/file.h>
45337 +#include <linux/security.h>
45338 #include <linux/fdtable.h>
45339 #include <linux/bitops.h>
45340 #include <linux/interrupt.h>
45341 @@ -255,6 +256,7 @@ int expand_files(struct files_struct *files, int nr)
45342 * N.B. For clone tasks sharing a files structure, this test
45343 * will limit the total number of files that can be opened.
45344 */
45345 + gr_learn_resource(current, RLIMIT_NOFILE, nr, 0);
45346 if (nr >= rlimit(RLIMIT_NOFILE))
45347 return -EMFILE;
45348
45349 diff --git a/fs/filesystems.c b/fs/filesystems.c
45350 index 96f2428..f5eeb8e 100644
45351 --- a/fs/filesystems.c
45352 +++ b/fs/filesystems.c
45353 @@ -273,7 +273,12 @@ struct file_system_type *get_fs_type(const char *name)
45354 int len = dot ? dot - name : strlen(name);
45355
45356 fs = __get_fs_type(name, len);
45357 +
45358 +#ifdef CONFIG_GRKERNSEC_MODHARDEN
45359 + if (!fs && (___request_module(true, "grsec_modharden_fs", "%.*s", len, name) == 0))
45360 +#else
45361 if (!fs && (request_module("%.*s", len, name) == 0))
45362 +#endif
45363 fs = __get_fs_type(name, len);
45364
45365 if (dot && fs && !(fs->fs_flags & FS_HAS_SUBTYPE)) {
45366 diff --git a/fs/fs_struct.c b/fs/fs_struct.c
45367 index e159e68..e7d2a6f 100644
45368 --- a/fs/fs_struct.c
45369 +++ b/fs/fs_struct.c
45370 @@ -4,6 +4,7 @@
45371 #include <linux/path.h>
45372 #include <linux/slab.h>
45373 #include <linux/fs_struct.h>
45374 +#include <linux/grsecurity.h>
45375 #include "internal.h"
45376
45377 static inline void path_get_longterm(struct path *path)
45378 @@ -31,6 +32,7 @@ void set_fs_root(struct fs_struct *fs, struct path *path)
45379 write_seqcount_begin(&fs->seq);
45380 old_root = fs->root;
45381 fs->root = *path;
45382 + gr_set_chroot_entries(current, path);
45383 write_seqcount_end(&fs->seq);
45384 spin_unlock(&fs->lock);
45385 if (old_root.dentry)
45386 @@ -65,6 +67,17 @@ static inline int replace_path(struct path *p, const struct path *old, const str
45387 return 1;
45388 }
45389
45390 +static inline int replace_root_path(struct task_struct *task, struct path *p, const struct path *old, struct path *new)
45391 +{
45392 + if (likely(p->dentry != old->dentry || p->mnt != old->mnt))
45393 + return 0;
45394 + *p = *new;
45395 +
45396 + gr_set_chroot_entries(task, new);
45397 +
45398 + return 1;
45399 +}
45400 +
45401 void chroot_fs_refs(struct path *old_root, struct path *new_root)
45402 {
45403 struct task_struct *g, *p;
45404 @@ -79,7 +92,7 @@ void chroot_fs_refs(struct path *old_root, struct path *new_root)
45405 int hits = 0;
45406 spin_lock(&fs->lock);
45407 write_seqcount_begin(&fs->seq);
45408 - hits += replace_path(&fs->root, old_root, new_root);
45409 + hits += replace_root_path(p, &fs->root, old_root, new_root);
45410 hits += replace_path(&fs->pwd, old_root, new_root);
45411 write_seqcount_end(&fs->seq);
45412 while (hits--) {
45413 @@ -111,7 +124,8 @@ void exit_fs(struct task_struct *tsk)
45414 task_lock(tsk);
45415 spin_lock(&fs->lock);
45416 tsk->fs = NULL;
45417 - kill = !--fs->users;
45418 + gr_clear_chroot_entries(tsk);
45419 + kill = !atomic_dec_return(&fs->users);
45420 spin_unlock(&fs->lock);
45421 task_unlock(tsk);
45422 if (kill)
45423 @@ -124,7 +138,7 @@ struct fs_struct *copy_fs_struct(struct fs_struct *old)
45424 struct fs_struct *fs = kmem_cache_alloc(fs_cachep, GFP_KERNEL);
45425 /* We don't need to lock fs - think why ;-) */
45426 if (fs) {
45427 - fs->users = 1;
45428 + atomic_set(&fs->users, 1);
45429 fs->in_exec = 0;
45430 spin_lock_init(&fs->lock);
45431 seqcount_init(&fs->seq);
45432 @@ -133,6 +147,9 @@ struct fs_struct *copy_fs_struct(struct fs_struct *old)
45433 spin_lock(&old->lock);
45434 fs->root = old->root;
45435 path_get_longterm(&fs->root);
45436 + /* instead of calling gr_set_chroot_entries here,
45437 + we call it from every caller of this function
45438 + */
45439 fs->pwd = old->pwd;
45440 path_get_longterm(&fs->pwd);
45441 spin_unlock(&old->lock);
45442 @@ -151,8 +168,9 @@ int unshare_fs_struct(void)
45443
45444 task_lock(current);
45445 spin_lock(&fs->lock);
45446 - kill = !--fs->users;
45447 + kill = !atomic_dec_return(&fs->users);
45448 current->fs = new_fs;
45449 + gr_set_chroot_entries(current, &new_fs->root);
45450 spin_unlock(&fs->lock);
45451 task_unlock(current);
45452
45453 @@ -165,13 +183,13 @@ EXPORT_SYMBOL_GPL(unshare_fs_struct);
45454
45455 int current_umask(void)
45456 {
45457 - return current->fs->umask;
45458 + return current->fs->umask | gr_acl_umask();
45459 }
45460 EXPORT_SYMBOL(current_umask);
45461
45462 /* to be mentioned only in INIT_TASK */
45463 struct fs_struct init_fs = {
45464 - .users = 1,
45465 + .users = ATOMIC_INIT(1),
45466 .lock = __SPIN_LOCK_UNLOCKED(init_fs.lock),
45467 .seq = SEQCNT_ZERO,
45468 .umask = 0022,
45469 @@ -187,12 +205,13 @@ void daemonize_fs_struct(void)
45470 task_lock(current);
45471
45472 spin_lock(&init_fs.lock);
45473 - init_fs.users++;
45474 + atomic_inc(&init_fs.users);
45475 spin_unlock(&init_fs.lock);
45476
45477 spin_lock(&fs->lock);
45478 current->fs = &init_fs;
45479 - kill = !--fs->users;
45480 + gr_set_chroot_entries(current, &current->fs->root);
45481 + kill = !atomic_dec_return(&fs->users);
45482 spin_unlock(&fs->lock);
45483
45484 task_unlock(current);
45485 diff --git a/fs/fscache/cookie.c b/fs/fscache/cookie.c
45486 index 9905350..02eaec4 100644
45487 --- a/fs/fscache/cookie.c
45488 +++ b/fs/fscache/cookie.c
45489 @@ -68,11 +68,11 @@ struct fscache_cookie *__fscache_acquire_cookie(
45490 parent ? (char *) parent->def->name : "<no-parent>",
45491 def->name, netfs_data);
45492
45493 - fscache_stat(&fscache_n_acquires);
45494 + fscache_stat_unchecked(&fscache_n_acquires);
45495
45496 /* if there's no parent cookie, then we don't create one here either */
45497 if (!parent) {
45498 - fscache_stat(&fscache_n_acquires_null);
45499 + fscache_stat_unchecked(&fscache_n_acquires_null);
45500 _leave(" [no parent]");
45501 return NULL;
45502 }
45503 @@ -87,7 +87,7 @@ struct fscache_cookie *__fscache_acquire_cookie(
45504 /* allocate and initialise a cookie */
45505 cookie = kmem_cache_alloc(fscache_cookie_jar, GFP_KERNEL);
45506 if (!cookie) {
45507 - fscache_stat(&fscache_n_acquires_oom);
45508 + fscache_stat_unchecked(&fscache_n_acquires_oom);
45509 _leave(" [ENOMEM]");
45510 return NULL;
45511 }
45512 @@ -109,13 +109,13 @@ struct fscache_cookie *__fscache_acquire_cookie(
45513
45514 switch (cookie->def->type) {
45515 case FSCACHE_COOKIE_TYPE_INDEX:
45516 - fscache_stat(&fscache_n_cookie_index);
45517 + fscache_stat_unchecked(&fscache_n_cookie_index);
45518 break;
45519 case FSCACHE_COOKIE_TYPE_DATAFILE:
45520 - fscache_stat(&fscache_n_cookie_data);
45521 + fscache_stat_unchecked(&fscache_n_cookie_data);
45522 break;
45523 default:
45524 - fscache_stat(&fscache_n_cookie_special);
45525 + fscache_stat_unchecked(&fscache_n_cookie_special);
45526 break;
45527 }
45528
45529 @@ -126,13 +126,13 @@ struct fscache_cookie *__fscache_acquire_cookie(
45530 if (fscache_acquire_non_index_cookie(cookie) < 0) {
45531 atomic_dec(&parent->n_children);
45532 __fscache_cookie_put(cookie);
45533 - fscache_stat(&fscache_n_acquires_nobufs);
45534 + fscache_stat_unchecked(&fscache_n_acquires_nobufs);
45535 _leave(" = NULL");
45536 return NULL;
45537 }
45538 }
45539
45540 - fscache_stat(&fscache_n_acquires_ok);
45541 + fscache_stat_unchecked(&fscache_n_acquires_ok);
45542 _leave(" = %p", cookie);
45543 return cookie;
45544 }
45545 @@ -168,7 +168,7 @@ static int fscache_acquire_non_index_cookie(struct fscache_cookie *cookie)
45546 cache = fscache_select_cache_for_object(cookie->parent);
45547 if (!cache) {
45548 up_read(&fscache_addremove_sem);
45549 - fscache_stat(&fscache_n_acquires_no_cache);
45550 + fscache_stat_unchecked(&fscache_n_acquires_no_cache);
45551 _leave(" = -ENOMEDIUM [no cache]");
45552 return -ENOMEDIUM;
45553 }
45554 @@ -256,12 +256,12 @@ static int fscache_alloc_object(struct fscache_cache *cache,
45555 object = cache->ops->alloc_object(cache, cookie);
45556 fscache_stat_d(&fscache_n_cop_alloc_object);
45557 if (IS_ERR(object)) {
45558 - fscache_stat(&fscache_n_object_no_alloc);
45559 + fscache_stat_unchecked(&fscache_n_object_no_alloc);
45560 ret = PTR_ERR(object);
45561 goto error;
45562 }
45563
45564 - fscache_stat(&fscache_n_object_alloc);
45565 + fscache_stat_unchecked(&fscache_n_object_alloc);
45566
45567 object->debug_id = atomic_inc_return(&fscache_object_debug_id);
45568
45569 @@ -377,10 +377,10 @@ void __fscache_update_cookie(struct fscache_cookie *cookie)
45570 struct fscache_object *object;
45571 struct hlist_node *_p;
45572
45573 - fscache_stat(&fscache_n_updates);
45574 + fscache_stat_unchecked(&fscache_n_updates);
45575
45576 if (!cookie) {
45577 - fscache_stat(&fscache_n_updates_null);
45578 + fscache_stat_unchecked(&fscache_n_updates_null);
45579 _leave(" [no cookie]");
45580 return;
45581 }
45582 @@ -414,12 +414,12 @@ void __fscache_relinquish_cookie(struct fscache_cookie *cookie, int retire)
45583 struct fscache_object *object;
45584 unsigned long event;
45585
45586 - fscache_stat(&fscache_n_relinquishes);
45587 + fscache_stat_unchecked(&fscache_n_relinquishes);
45588 if (retire)
45589 - fscache_stat(&fscache_n_relinquishes_retire);
45590 + fscache_stat_unchecked(&fscache_n_relinquishes_retire);
45591
45592 if (!cookie) {
45593 - fscache_stat(&fscache_n_relinquishes_null);
45594 + fscache_stat_unchecked(&fscache_n_relinquishes_null);
45595 _leave(" [no cookie]");
45596 return;
45597 }
45598 @@ -435,7 +435,7 @@ void __fscache_relinquish_cookie(struct fscache_cookie *cookie, int retire)
45599
45600 /* wait for the cookie to finish being instantiated (or to fail) */
45601 if (test_bit(FSCACHE_COOKIE_CREATING, &cookie->flags)) {
45602 - fscache_stat(&fscache_n_relinquishes_waitcrt);
45603 + fscache_stat_unchecked(&fscache_n_relinquishes_waitcrt);
45604 wait_on_bit(&cookie->flags, FSCACHE_COOKIE_CREATING,
45605 fscache_wait_bit, TASK_UNINTERRUPTIBLE);
45606 }
45607 diff --git a/fs/fscache/internal.h b/fs/fscache/internal.h
45608 index f6aad48..88dcf26 100644
45609 --- a/fs/fscache/internal.h
45610 +++ b/fs/fscache/internal.h
45611 @@ -144,94 +144,94 @@ extern void fscache_proc_cleanup(void);
45612 extern atomic_t fscache_n_ops_processed[FSCACHE_MAX_THREADS];
45613 extern atomic_t fscache_n_objs_processed[FSCACHE_MAX_THREADS];
45614
45615 -extern atomic_t fscache_n_op_pend;
45616 -extern atomic_t fscache_n_op_run;
45617 -extern atomic_t fscache_n_op_enqueue;
45618 -extern atomic_t fscache_n_op_deferred_release;
45619 -extern atomic_t fscache_n_op_release;
45620 -extern atomic_t fscache_n_op_gc;
45621 -extern atomic_t fscache_n_op_cancelled;
45622 -extern atomic_t fscache_n_op_rejected;
45623 +extern atomic_unchecked_t fscache_n_op_pend;
45624 +extern atomic_unchecked_t fscache_n_op_run;
45625 +extern atomic_unchecked_t fscache_n_op_enqueue;
45626 +extern atomic_unchecked_t fscache_n_op_deferred_release;
45627 +extern atomic_unchecked_t fscache_n_op_release;
45628 +extern atomic_unchecked_t fscache_n_op_gc;
45629 +extern atomic_unchecked_t fscache_n_op_cancelled;
45630 +extern atomic_unchecked_t fscache_n_op_rejected;
45631
45632 -extern atomic_t fscache_n_attr_changed;
45633 -extern atomic_t fscache_n_attr_changed_ok;
45634 -extern atomic_t fscache_n_attr_changed_nobufs;
45635 -extern atomic_t fscache_n_attr_changed_nomem;
45636 -extern atomic_t fscache_n_attr_changed_calls;
45637 +extern atomic_unchecked_t fscache_n_attr_changed;
45638 +extern atomic_unchecked_t fscache_n_attr_changed_ok;
45639 +extern atomic_unchecked_t fscache_n_attr_changed_nobufs;
45640 +extern atomic_unchecked_t fscache_n_attr_changed_nomem;
45641 +extern atomic_unchecked_t fscache_n_attr_changed_calls;
45642
45643 -extern atomic_t fscache_n_allocs;
45644 -extern atomic_t fscache_n_allocs_ok;
45645 -extern atomic_t fscache_n_allocs_wait;
45646 -extern atomic_t fscache_n_allocs_nobufs;
45647 -extern atomic_t fscache_n_allocs_intr;
45648 -extern atomic_t fscache_n_allocs_object_dead;
45649 -extern atomic_t fscache_n_alloc_ops;
45650 -extern atomic_t fscache_n_alloc_op_waits;
45651 +extern atomic_unchecked_t fscache_n_allocs;
45652 +extern atomic_unchecked_t fscache_n_allocs_ok;
45653 +extern atomic_unchecked_t fscache_n_allocs_wait;
45654 +extern atomic_unchecked_t fscache_n_allocs_nobufs;
45655 +extern atomic_unchecked_t fscache_n_allocs_intr;
45656 +extern atomic_unchecked_t fscache_n_allocs_object_dead;
45657 +extern atomic_unchecked_t fscache_n_alloc_ops;
45658 +extern atomic_unchecked_t fscache_n_alloc_op_waits;
45659
45660 -extern atomic_t fscache_n_retrievals;
45661 -extern atomic_t fscache_n_retrievals_ok;
45662 -extern atomic_t fscache_n_retrievals_wait;
45663 -extern atomic_t fscache_n_retrievals_nodata;
45664 -extern atomic_t fscache_n_retrievals_nobufs;
45665 -extern atomic_t fscache_n_retrievals_intr;
45666 -extern atomic_t fscache_n_retrievals_nomem;
45667 -extern atomic_t fscache_n_retrievals_object_dead;
45668 -extern atomic_t fscache_n_retrieval_ops;
45669 -extern atomic_t fscache_n_retrieval_op_waits;
45670 +extern atomic_unchecked_t fscache_n_retrievals;
45671 +extern atomic_unchecked_t fscache_n_retrievals_ok;
45672 +extern atomic_unchecked_t fscache_n_retrievals_wait;
45673 +extern atomic_unchecked_t fscache_n_retrievals_nodata;
45674 +extern atomic_unchecked_t fscache_n_retrievals_nobufs;
45675 +extern atomic_unchecked_t fscache_n_retrievals_intr;
45676 +extern atomic_unchecked_t fscache_n_retrievals_nomem;
45677 +extern atomic_unchecked_t fscache_n_retrievals_object_dead;
45678 +extern atomic_unchecked_t fscache_n_retrieval_ops;
45679 +extern atomic_unchecked_t fscache_n_retrieval_op_waits;
45680
45681 -extern atomic_t fscache_n_stores;
45682 -extern atomic_t fscache_n_stores_ok;
45683 -extern atomic_t fscache_n_stores_again;
45684 -extern atomic_t fscache_n_stores_nobufs;
45685 -extern atomic_t fscache_n_stores_oom;
45686 -extern atomic_t fscache_n_store_ops;
45687 -extern atomic_t fscache_n_store_calls;
45688 -extern atomic_t fscache_n_store_pages;
45689 -extern atomic_t fscache_n_store_radix_deletes;
45690 -extern atomic_t fscache_n_store_pages_over_limit;
45691 +extern atomic_unchecked_t fscache_n_stores;
45692 +extern atomic_unchecked_t fscache_n_stores_ok;
45693 +extern atomic_unchecked_t fscache_n_stores_again;
45694 +extern atomic_unchecked_t fscache_n_stores_nobufs;
45695 +extern atomic_unchecked_t fscache_n_stores_oom;
45696 +extern atomic_unchecked_t fscache_n_store_ops;
45697 +extern atomic_unchecked_t fscache_n_store_calls;
45698 +extern atomic_unchecked_t fscache_n_store_pages;
45699 +extern atomic_unchecked_t fscache_n_store_radix_deletes;
45700 +extern atomic_unchecked_t fscache_n_store_pages_over_limit;
45701
45702 -extern atomic_t fscache_n_store_vmscan_not_storing;
45703 -extern atomic_t fscache_n_store_vmscan_gone;
45704 -extern atomic_t fscache_n_store_vmscan_busy;
45705 -extern atomic_t fscache_n_store_vmscan_cancelled;
45706 +extern atomic_unchecked_t fscache_n_store_vmscan_not_storing;
45707 +extern atomic_unchecked_t fscache_n_store_vmscan_gone;
45708 +extern atomic_unchecked_t fscache_n_store_vmscan_busy;
45709 +extern atomic_unchecked_t fscache_n_store_vmscan_cancelled;
45710
45711 -extern atomic_t fscache_n_marks;
45712 -extern atomic_t fscache_n_uncaches;
45713 +extern atomic_unchecked_t fscache_n_marks;
45714 +extern atomic_unchecked_t fscache_n_uncaches;
45715
45716 -extern atomic_t fscache_n_acquires;
45717 -extern atomic_t fscache_n_acquires_null;
45718 -extern atomic_t fscache_n_acquires_no_cache;
45719 -extern atomic_t fscache_n_acquires_ok;
45720 -extern atomic_t fscache_n_acquires_nobufs;
45721 -extern atomic_t fscache_n_acquires_oom;
45722 +extern atomic_unchecked_t fscache_n_acquires;
45723 +extern atomic_unchecked_t fscache_n_acquires_null;
45724 +extern atomic_unchecked_t fscache_n_acquires_no_cache;
45725 +extern atomic_unchecked_t fscache_n_acquires_ok;
45726 +extern atomic_unchecked_t fscache_n_acquires_nobufs;
45727 +extern atomic_unchecked_t fscache_n_acquires_oom;
45728
45729 -extern atomic_t fscache_n_updates;
45730 -extern atomic_t fscache_n_updates_null;
45731 -extern atomic_t fscache_n_updates_run;
45732 +extern atomic_unchecked_t fscache_n_updates;
45733 +extern atomic_unchecked_t fscache_n_updates_null;
45734 +extern atomic_unchecked_t fscache_n_updates_run;
45735
45736 -extern atomic_t fscache_n_relinquishes;
45737 -extern atomic_t fscache_n_relinquishes_null;
45738 -extern atomic_t fscache_n_relinquishes_waitcrt;
45739 -extern atomic_t fscache_n_relinquishes_retire;
45740 +extern atomic_unchecked_t fscache_n_relinquishes;
45741 +extern atomic_unchecked_t fscache_n_relinquishes_null;
45742 +extern atomic_unchecked_t fscache_n_relinquishes_waitcrt;
45743 +extern atomic_unchecked_t fscache_n_relinquishes_retire;
45744
45745 -extern atomic_t fscache_n_cookie_index;
45746 -extern atomic_t fscache_n_cookie_data;
45747 -extern atomic_t fscache_n_cookie_special;
45748 +extern atomic_unchecked_t fscache_n_cookie_index;
45749 +extern atomic_unchecked_t fscache_n_cookie_data;
45750 +extern atomic_unchecked_t fscache_n_cookie_special;
45751
45752 -extern atomic_t fscache_n_object_alloc;
45753 -extern atomic_t fscache_n_object_no_alloc;
45754 -extern atomic_t fscache_n_object_lookups;
45755 -extern atomic_t fscache_n_object_lookups_negative;
45756 -extern atomic_t fscache_n_object_lookups_positive;
45757 -extern atomic_t fscache_n_object_lookups_timed_out;
45758 -extern atomic_t fscache_n_object_created;
45759 -extern atomic_t fscache_n_object_avail;
45760 -extern atomic_t fscache_n_object_dead;
45761 +extern atomic_unchecked_t fscache_n_object_alloc;
45762 +extern atomic_unchecked_t fscache_n_object_no_alloc;
45763 +extern atomic_unchecked_t fscache_n_object_lookups;
45764 +extern atomic_unchecked_t fscache_n_object_lookups_negative;
45765 +extern atomic_unchecked_t fscache_n_object_lookups_positive;
45766 +extern atomic_unchecked_t fscache_n_object_lookups_timed_out;
45767 +extern atomic_unchecked_t fscache_n_object_created;
45768 +extern atomic_unchecked_t fscache_n_object_avail;
45769 +extern atomic_unchecked_t fscache_n_object_dead;
45770
45771 -extern atomic_t fscache_n_checkaux_none;
45772 -extern atomic_t fscache_n_checkaux_okay;
45773 -extern atomic_t fscache_n_checkaux_update;
45774 -extern atomic_t fscache_n_checkaux_obsolete;
45775 +extern atomic_unchecked_t fscache_n_checkaux_none;
45776 +extern atomic_unchecked_t fscache_n_checkaux_okay;
45777 +extern atomic_unchecked_t fscache_n_checkaux_update;
45778 +extern atomic_unchecked_t fscache_n_checkaux_obsolete;
45779
45780 extern atomic_t fscache_n_cop_alloc_object;
45781 extern atomic_t fscache_n_cop_lookup_object;
45782 @@ -255,6 +255,11 @@ static inline void fscache_stat(atomic_t *stat)
45783 atomic_inc(stat);
45784 }
45785
45786 +static inline void fscache_stat_unchecked(atomic_unchecked_t *stat)
45787 +{
45788 + atomic_inc_unchecked(stat);
45789 +}
45790 +
45791 static inline void fscache_stat_d(atomic_t *stat)
45792 {
45793 atomic_dec(stat);
45794 @@ -267,6 +272,7 @@ extern const struct file_operations fscache_stats_fops;
45795
45796 #define __fscache_stat(stat) (NULL)
45797 #define fscache_stat(stat) do {} while (0)
45798 +#define fscache_stat_unchecked(stat) do {} while (0)
45799 #define fscache_stat_d(stat) do {} while (0)
45800 #endif
45801
45802 diff --git a/fs/fscache/object.c b/fs/fscache/object.c
45803 index b6b897c..0ffff9c 100644
45804 --- a/fs/fscache/object.c
45805 +++ b/fs/fscache/object.c
45806 @@ -128,7 +128,7 @@ static void fscache_object_state_machine(struct fscache_object *object)
45807 /* update the object metadata on disk */
45808 case FSCACHE_OBJECT_UPDATING:
45809 clear_bit(FSCACHE_OBJECT_EV_UPDATE, &object->events);
45810 - fscache_stat(&fscache_n_updates_run);
45811 + fscache_stat_unchecked(&fscache_n_updates_run);
45812 fscache_stat(&fscache_n_cop_update_object);
45813 object->cache->ops->update_object(object);
45814 fscache_stat_d(&fscache_n_cop_update_object);
45815 @@ -217,7 +217,7 @@ static void fscache_object_state_machine(struct fscache_object *object)
45816 spin_lock(&object->lock);
45817 object->state = FSCACHE_OBJECT_DEAD;
45818 spin_unlock(&object->lock);
45819 - fscache_stat(&fscache_n_object_dead);
45820 + fscache_stat_unchecked(&fscache_n_object_dead);
45821 goto terminal_transit;
45822
45823 /* handle the parent cache of this object being withdrawn from
45824 @@ -232,7 +232,7 @@ static void fscache_object_state_machine(struct fscache_object *object)
45825 spin_lock(&object->lock);
45826 object->state = FSCACHE_OBJECT_DEAD;
45827 spin_unlock(&object->lock);
45828 - fscache_stat(&fscache_n_object_dead);
45829 + fscache_stat_unchecked(&fscache_n_object_dead);
45830 goto terminal_transit;
45831
45832 /* complain about the object being woken up once it is
45833 @@ -461,7 +461,7 @@ static void fscache_lookup_object(struct fscache_object *object)
45834 parent->cookie->def->name, cookie->def->name,
45835 object->cache->tag->name);
45836
45837 - fscache_stat(&fscache_n_object_lookups);
45838 + fscache_stat_unchecked(&fscache_n_object_lookups);
45839 fscache_stat(&fscache_n_cop_lookup_object);
45840 ret = object->cache->ops->lookup_object(object);
45841 fscache_stat_d(&fscache_n_cop_lookup_object);
45842 @@ -472,7 +472,7 @@ static void fscache_lookup_object(struct fscache_object *object)
45843 if (ret == -ETIMEDOUT) {
45844 /* probably stuck behind another object, so move this one to
45845 * the back of the queue */
45846 - fscache_stat(&fscache_n_object_lookups_timed_out);
45847 + fscache_stat_unchecked(&fscache_n_object_lookups_timed_out);
45848 set_bit(FSCACHE_OBJECT_EV_REQUEUE, &object->events);
45849 }
45850
45851 @@ -495,7 +495,7 @@ void fscache_object_lookup_negative(struct fscache_object *object)
45852
45853 spin_lock(&object->lock);
45854 if (object->state == FSCACHE_OBJECT_LOOKING_UP) {
45855 - fscache_stat(&fscache_n_object_lookups_negative);
45856 + fscache_stat_unchecked(&fscache_n_object_lookups_negative);
45857
45858 /* transit here to allow write requests to begin stacking up
45859 * and read requests to begin returning ENODATA */
45860 @@ -541,7 +541,7 @@ void fscache_obtained_object(struct fscache_object *object)
45861 * result, in which case there may be data available */
45862 spin_lock(&object->lock);
45863 if (object->state == FSCACHE_OBJECT_LOOKING_UP) {
45864 - fscache_stat(&fscache_n_object_lookups_positive);
45865 + fscache_stat_unchecked(&fscache_n_object_lookups_positive);
45866
45867 clear_bit(FSCACHE_COOKIE_NO_DATA_YET, &cookie->flags);
45868
45869 @@ -555,7 +555,7 @@ void fscache_obtained_object(struct fscache_object *object)
45870 set_bit(FSCACHE_OBJECT_EV_REQUEUE, &object->events);
45871 } else {
45872 ASSERTCMP(object->state, ==, FSCACHE_OBJECT_CREATING);
45873 - fscache_stat(&fscache_n_object_created);
45874 + fscache_stat_unchecked(&fscache_n_object_created);
45875
45876 object->state = FSCACHE_OBJECT_AVAILABLE;
45877 spin_unlock(&object->lock);
45878 @@ -602,7 +602,7 @@ static void fscache_object_available(struct fscache_object *object)
45879 fscache_enqueue_dependents(object);
45880
45881 fscache_hist(fscache_obj_instantiate_histogram, object->lookup_jif);
45882 - fscache_stat(&fscache_n_object_avail);
45883 + fscache_stat_unchecked(&fscache_n_object_avail);
45884
45885 _leave("");
45886 }
45887 @@ -861,7 +861,7 @@ enum fscache_checkaux fscache_check_aux(struct fscache_object *object,
45888 enum fscache_checkaux result;
45889
45890 if (!object->cookie->def->check_aux) {
45891 - fscache_stat(&fscache_n_checkaux_none);
45892 + fscache_stat_unchecked(&fscache_n_checkaux_none);
45893 return FSCACHE_CHECKAUX_OKAY;
45894 }
45895
45896 @@ -870,17 +870,17 @@ enum fscache_checkaux fscache_check_aux(struct fscache_object *object,
45897 switch (result) {
45898 /* entry okay as is */
45899 case FSCACHE_CHECKAUX_OKAY:
45900 - fscache_stat(&fscache_n_checkaux_okay);
45901 + fscache_stat_unchecked(&fscache_n_checkaux_okay);
45902 break;
45903
45904 /* entry requires update */
45905 case FSCACHE_CHECKAUX_NEEDS_UPDATE:
45906 - fscache_stat(&fscache_n_checkaux_update);
45907 + fscache_stat_unchecked(&fscache_n_checkaux_update);
45908 break;
45909
45910 /* entry requires deletion */
45911 case FSCACHE_CHECKAUX_OBSOLETE:
45912 - fscache_stat(&fscache_n_checkaux_obsolete);
45913 + fscache_stat_unchecked(&fscache_n_checkaux_obsolete);
45914 break;
45915
45916 default:
45917 diff --git a/fs/fscache/operation.c b/fs/fscache/operation.c
45918 index 30afdfa..2256596 100644
45919 --- a/fs/fscache/operation.c
45920 +++ b/fs/fscache/operation.c
45921 @@ -17,7 +17,7 @@
45922 #include <linux/slab.h>
45923 #include "internal.h"
45924
45925 -atomic_t fscache_op_debug_id;
45926 +atomic_unchecked_t fscache_op_debug_id;
45927 EXPORT_SYMBOL(fscache_op_debug_id);
45928
45929 /**
45930 @@ -38,7 +38,7 @@ void fscache_enqueue_operation(struct fscache_operation *op)
45931 ASSERTCMP(op->object->state, >=, FSCACHE_OBJECT_AVAILABLE);
45932 ASSERTCMP(atomic_read(&op->usage), >, 0);
45933
45934 - fscache_stat(&fscache_n_op_enqueue);
45935 + fscache_stat_unchecked(&fscache_n_op_enqueue);
45936 switch (op->flags & FSCACHE_OP_TYPE) {
45937 case FSCACHE_OP_ASYNC:
45938 _debug("queue async");
45939 @@ -69,7 +69,7 @@ static void fscache_run_op(struct fscache_object *object,
45940 wake_up_bit(&op->flags, FSCACHE_OP_WAITING);
45941 if (op->processor)
45942 fscache_enqueue_operation(op);
45943 - fscache_stat(&fscache_n_op_run);
45944 + fscache_stat_unchecked(&fscache_n_op_run);
45945 }
45946
45947 /*
45948 @@ -98,11 +98,11 @@ int fscache_submit_exclusive_op(struct fscache_object *object,
45949 if (object->n_ops > 1) {
45950 atomic_inc(&op->usage);
45951 list_add_tail(&op->pend_link, &object->pending_ops);
45952 - fscache_stat(&fscache_n_op_pend);
45953 + fscache_stat_unchecked(&fscache_n_op_pend);
45954 } else if (!list_empty(&object->pending_ops)) {
45955 atomic_inc(&op->usage);
45956 list_add_tail(&op->pend_link, &object->pending_ops);
45957 - fscache_stat(&fscache_n_op_pend);
45958 + fscache_stat_unchecked(&fscache_n_op_pend);
45959 fscache_start_operations(object);
45960 } else {
45961 ASSERTCMP(object->n_in_progress, ==, 0);
45962 @@ -118,7 +118,7 @@ int fscache_submit_exclusive_op(struct fscache_object *object,
45963 object->n_exclusive++; /* reads and writes must wait */
45964 atomic_inc(&op->usage);
45965 list_add_tail(&op->pend_link, &object->pending_ops);
45966 - fscache_stat(&fscache_n_op_pend);
45967 + fscache_stat_unchecked(&fscache_n_op_pend);
45968 ret = 0;
45969 } else {
45970 /* not allowed to submit ops in any other state */
45971 @@ -203,11 +203,11 @@ int fscache_submit_op(struct fscache_object *object,
45972 if (object->n_exclusive > 0) {
45973 atomic_inc(&op->usage);
45974 list_add_tail(&op->pend_link, &object->pending_ops);
45975 - fscache_stat(&fscache_n_op_pend);
45976 + fscache_stat_unchecked(&fscache_n_op_pend);
45977 } else if (!list_empty(&object->pending_ops)) {
45978 atomic_inc(&op->usage);
45979 list_add_tail(&op->pend_link, &object->pending_ops);
45980 - fscache_stat(&fscache_n_op_pend);
45981 + fscache_stat_unchecked(&fscache_n_op_pend);
45982 fscache_start_operations(object);
45983 } else {
45984 ASSERTCMP(object->n_exclusive, ==, 0);
45985 @@ -219,12 +219,12 @@ int fscache_submit_op(struct fscache_object *object,
45986 object->n_ops++;
45987 atomic_inc(&op->usage);
45988 list_add_tail(&op->pend_link, &object->pending_ops);
45989 - fscache_stat(&fscache_n_op_pend);
45990 + fscache_stat_unchecked(&fscache_n_op_pend);
45991 ret = 0;
45992 } else if (object->state == FSCACHE_OBJECT_DYING ||
45993 object->state == FSCACHE_OBJECT_LC_DYING ||
45994 object->state == FSCACHE_OBJECT_WITHDRAWING) {
45995 - fscache_stat(&fscache_n_op_rejected);
45996 + fscache_stat_unchecked(&fscache_n_op_rejected);
45997 ret = -ENOBUFS;
45998 } else if (!test_bit(FSCACHE_IOERROR, &object->cache->flags)) {
45999 fscache_report_unexpected_submission(object, op, ostate);
46000 @@ -294,7 +294,7 @@ int fscache_cancel_op(struct fscache_operation *op)
46001
46002 ret = -EBUSY;
46003 if (!list_empty(&op->pend_link)) {
46004 - fscache_stat(&fscache_n_op_cancelled);
46005 + fscache_stat_unchecked(&fscache_n_op_cancelled);
46006 list_del_init(&op->pend_link);
46007 object->n_ops--;
46008 if (test_bit(FSCACHE_OP_EXCLUSIVE, &op->flags))
46009 @@ -331,7 +331,7 @@ void fscache_put_operation(struct fscache_operation *op)
46010 if (test_and_set_bit(FSCACHE_OP_DEAD, &op->flags))
46011 BUG();
46012
46013 - fscache_stat(&fscache_n_op_release);
46014 + fscache_stat_unchecked(&fscache_n_op_release);
46015
46016 if (op->release) {
46017 op->release(op);
46018 @@ -348,7 +348,7 @@ void fscache_put_operation(struct fscache_operation *op)
46019 * lock, and defer it otherwise */
46020 if (!spin_trylock(&object->lock)) {
46021 _debug("defer put");
46022 - fscache_stat(&fscache_n_op_deferred_release);
46023 + fscache_stat_unchecked(&fscache_n_op_deferred_release);
46024
46025 cache = object->cache;
46026 spin_lock(&cache->op_gc_list_lock);
46027 @@ -410,7 +410,7 @@ void fscache_operation_gc(struct work_struct *work)
46028
46029 _debug("GC DEFERRED REL OBJ%x OP%x",
46030 object->debug_id, op->debug_id);
46031 - fscache_stat(&fscache_n_op_gc);
46032 + fscache_stat_unchecked(&fscache_n_op_gc);
46033
46034 ASSERTCMP(atomic_read(&op->usage), ==, 0);
46035
46036 diff --git a/fs/fscache/page.c b/fs/fscache/page.c
46037 index 3f7a59b..cf196cc 100644
46038 --- a/fs/fscache/page.c
46039 +++ b/fs/fscache/page.c
46040 @@ -60,7 +60,7 @@ bool __fscache_maybe_release_page(struct fscache_cookie *cookie,
46041 val = radix_tree_lookup(&cookie->stores, page->index);
46042 if (!val) {
46043 rcu_read_unlock();
46044 - fscache_stat(&fscache_n_store_vmscan_not_storing);
46045 + fscache_stat_unchecked(&fscache_n_store_vmscan_not_storing);
46046 __fscache_uncache_page(cookie, page);
46047 return true;
46048 }
46049 @@ -90,11 +90,11 @@ bool __fscache_maybe_release_page(struct fscache_cookie *cookie,
46050 spin_unlock(&cookie->stores_lock);
46051
46052 if (xpage) {
46053 - fscache_stat(&fscache_n_store_vmscan_cancelled);
46054 - fscache_stat(&fscache_n_store_radix_deletes);
46055 + fscache_stat_unchecked(&fscache_n_store_vmscan_cancelled);
46056 + fscache_stat_unchecked(&fscache_n_store_radix_deletes);
46057 ASSERTCMP(xpage, ==, page);
46058 } else {
46059 - fscache_stat(&fscache_n_store_vmscan_gone);
46060 + fscache_stat_unchecked(&fscache_n_store_vmscan_gone);
46061 }
46062
46063 wake_up_bit(&cookie->flags, 0);
46064 @@ -107,7 +107,7 @@ page_busy:
46065 /* we might want to wait here, but that could deadlock the allocator as
46066 * the work threads writing to the cache may all end up sleeping
46067 * on memory allocation */
46068 - fscache_stat(&fscache_n_store_vmscan_busy);
46069 + fscache_stat_unchecked(&fscache_n_store_vmscan_busy);
46070 return false;
46071 }
46072 EXPORT_SYMBOL(__fscache_maybe_release_page);
46073 @@ -131,7 +131,7 @@ static void fscache_end_page_write(struct fscache_object *object,
46074 FSCACHE_COOKIE_STORING_TAG);
46075 if (!radix_tree_tag_get(&cookie->stores, page->index,
46076 FSCACHE_COOKIE_PENDING_TAG)) {
46077 - fscache_stat(&fscache_n_store_radix_deletes);
46078 + fscache_stat_unchecked(&fscache_n_store_radix_deletes);
46079 xpage = radix_tree_delete(&cookie->stores, page->index);
46080 }
46081 spin_unlock(&cookie->stores_lock);
46082 @@ -152,7 +152,7 @@ static void fscache_attr_changed_op(struct fscache_operation *op)
46083
46084 _enter("{OBJ%x OP%x}", object->debug_id, op->debug_id);
46085
46086 - fscache_stat(&fscache_n_attr_changed_calls);
46087 + fscache_stat_unchecked(&fscache_n_attr_changed_calls);
46088
46089 if (fscache_object_is_active(object)) {
46090 fscache_stat(&fscache_n_cop_attr_changed);
46091 @@ -177,11 +177,11 @@ int __fscache_attr_changed(struct fscache_cookie *cookie)
46092
46093 ASSERTCMP(cookie->def->type, !=, FSCACHE_COOKIE_TYPE_INDEX);
46094
46095 - fscache_stat(&fscache_n_attr_changed);
46096 + fscache_stat_unchecked(&fscache_n_attr_changed);
46097
46098 op = kzalloc(sizeof(*op), GFP_KERNEL);
46099 if (!op) {
46100 - fscache_stat(&fscache_n_attr_changed_nomem);
46101 + fscache_stat_unchecked(&fscache_n_attr_changed_nomem);
46102 _leave(" = -ENOMEM");
46103 return -ENOMEM;
46104 }
46105 @@ -199,7 +199,7 @@ int __fscache_attr_changed(struct fscache_cookie *cookie)
46106 if (fscache_submit_exclusive_op(object, op) < 0)
46107 goto nobufs;
46108 spin_unlock(&cookie->lock);
46109 - fscache_stat(&fscache_n_attr_changed_ok);
46110 + fscache_stat_unchecked(&fscache_n_attr_changed_ok);
46111 fscache_put_operation(op);
46112 _leave(" = 0");
46113 return 0;
46114 @@ -207,7 +207,7 @@ int __fscache_attr_changed(struct fscache_cookie *cookie)
46115 nobufs:
46116 spin_unlock(&cookie->lock);
46117 kfree(op);
46118 - fscache_stat(&fscache_n_attr_changed_nobufs);
46119 + fscache_stat_unchecked(&fscache_n_attr_changed_nobufs);
46120 _leave(" = %d", -ENOBUFS);
46121 return -ENOBUFS;
46122 }
46123 @@ -243,7 +243,7 @@ static struct fscache_retrieval *fscache_alloc_retrieval(
46124 /* allocate a retrieval operation and attempt to submit it */
46125 op = kzalloc(sizeof(*op), GFP_NOIO);
46126 if (!op) {
46127 - fscache_stat(&fscache_n_retrievals_nomem);
46128 + fscache_stat_unchecked(&fscache_n_retrievals_nomem);
46129 return NULL;
46130 }
46131
46132 @@ -271,13 +271,13 @@ static int fscache_wait_for_deferred_lookup(struct fscache_cookie *cookie)
46133 return 0;
46134 }
46135
46136 - fscache_stat(&fscache_n_retrievals_wait);
46137 + fscache_stat_unchecked(&fscache_n_retrievals_wait);
46138
46139 jif = jiffies;
46140 if (wait_on_bit(&cookie->flags, FSCACHE_COOKIE_LOOKING_UP,
46141 fscache_wait_bit_interruptible,
46142 TASK_INTERRUPTIBLE) != 0) {
46143 - fscache_stat(&fscache_n_retrievals_intr);
46144 + fscache_stat_unchecked(&fscache_n_retrievals_intr);
46145 _leave(" = -ERESTARTSYS");
46146 return -ERESTARTSYS;
46147 }
46148 @@ -295,8 +295,8 @@ static int fscache_wait_for_deferred_lookup(struct fscache_cookie *cookie)
46149 */
46150 static int fscache_wait_for_retrieval_activation(struct fscache_object *object,
46151 struct fscache_retrieval *op,
46152 - atomic_t *stat_op_waits,
46153 - atomic_t *stat_object_dead)
46154 + atomic_unchecked_t *stat_op_waits,
46155 + atomic_unchecked_t *stat_object_dead)
46156 {
46157 int ret;
46158
46159 @@ -304,7 +304,7 @@ static int fscache_wait_for_retrieval_activation(struct fscache_object *object,
46160 goto check_if_dead;
46161
46162 _debug(">>> WT");
46163 - fscache_stat(stat_op_waits);
46164 + fscache_stat_unchecked(stat_op_waits);
46165 if (wait_on_bit(&op->op.flags, FSCACHE_OP_WAITING,
46166 fscache_wait_bit_interruptible,
46167 TASK_INTERRUPTIBLE) < 0) {
46168 @@ -321,7 +321,7 @@ static int fscache_wait_for_retrieval_activation(struct fscache_object *object,
46169
46170 check_if_dead:
46171 if (unlikely(fscache_object_is_dead(object))) {
46172 - fscache_stat(stat_object_dead);
46173 + fscache_stat_unchecked(stat_object_dead);
46174 return -ENOBUFS;
46175 }
46176 return 0;
46177 @@ -348,7 +348,7 @@ int __fscache_read_or_alloc_page(struct fscache_cookie *cookie,
46178
46179 _enter("%p,%p,,,", cookie, page);
46180
46181 - fscache_stat(&fscache_n_retrievals);
46182 + fscache_stat_unchecked(&fscache_n_retrievals);
46183
46184 if (hlist_empty(&cookie->backing_objects))
46185 goto nobufs;
46186 @@ -381,7 +381,7 @@ int __fscache_read_or_alloc_page(struct fscache_cookie *cookie,
46187 goto nobufs_unlock;
46188 spin_unlock(&cookie->lock);
46189
46190 - fscache_stat(&fscache_n_retrieval_ops);
46191 + fscache_stat_unchecked(&fscache_n_retrieval_ops);
46192
46193 /* pin the netfs read context in case we need to do the actual netfs
46194 * read because we've encountered a cache read failure */
46195 @@ -411,15 +411,15 @@ int __fscache_read_or_alloc_page(struct fscache_cookie *cookie,
46196
46197 error:
46198 if (ret == -ENOMEM)
46199 - fscache_stat(&fscache_n_retrievals_nomem);
46200 + fscache_stat_unchecked(&fscache_n_retrievals_nomem);
46201 else if (ret == -ERESTARTSYS)
46202 - fscache_stat(&fscache_n_retrievals_intr);
46203 + fscache_stat_unchecked(&fscache_n_retrievals_intr);
46204 else if (ret == -ENODATA)
46205 - fscache_stat(&fscache_n_retrievals_nodata);
46206 + fscache_stat_unchecked(&fscache_n_retrievals_nodata);
46207 else if (ret < 0)
46208 - fscache_stat(&fscache_n_retrievals_nobufs);
46209 + fscache_stat_unchecked(&fscache_n_retrievals_nobufs);
46210 else
46211 - fscache_stat(&fscache_n_retrievals_ok);
46212 + fscache_stat_unchecked(&fscache_n_retrievals_ok);
46213
46214 fscache_put_retrieval(op);
46215 _leave(" = %d", ret);
46216 @@ -429,7 +429,7 @@ nobufs_unlock:
46217 spin_unlock(&cookie->lock);
46218 kfree(op);
46219 nobufs:
46220 - fscache_stat(&fscache_n_retrievals_nobufs);
46221 + fscache_stat_unchecked(&fscache_n_retrievals_nobufs);
46222 _leave(" = -ENOBUFS");
46223 return -ENOBUFS;
46224 }
46225 @@ -467,7 +467,7 @@ int __fscache_read_or_alloc_pages(struct fscache_cookie *cookie,
46226
46227 _enter("%p,,%d,,,", cookie, *nr_pages);
46228
46229 - fscache_stat(&fscache_n_retrievals);
46230 + fscache_stat_unchecked(&fscache_n_retrievals);
46231
46232 if (hlist_empty(&cookie->backing_objects))
46233 goto nobufs;
46234 @@ -497,7 +497,7 @@ int __fscache_read_or_alloc_pages(struct fscache_cookie *cookie,
46235 goto nobufs_unlock;
46236 spin_unlock(&cookie->lock);
46237
46238 - fscache_stat(&fscache_n_retrieval_ops);
46239 + fscache_stat_unchecked(&fscache_n_retrieval_ops);
46240
46241 /* pin the netfs read context in case we need to do the actual netfs
46242 * read because we've encountered a cache read failure */
46243 @@ -527,15 +527,15 @@ int __fscache_read_or_alloc_pages(struct fscache_cookie *cookie,
46244
46245 error:
46246 if (ret == -ENOMEM)
46247 - fscache_stat(&fscache_n_retrievals_nomem);
46248 + fscache_stat_unchecked(&fscache_n_retrievals_nomem);
46249 else if (ret == -ERESTARTSYS)
46250 - fscache_stat(&fscache_n_retrievals_intr);
46251 + fscache_stat_unchecked(&fscache_n_retrievals_intr);
46252 else if (ret == -ENODATA)
46253 - fscache_stat(&fscache_n_retrievals_nodata);
46254 + fscache_stat_unchecked(&fscache_n_retrievals_nodata);
46255 else if (ret < 0)
46256 - fscache_stat(&fscache_n_retrievals_nobufs);
46257 + fscache_stat_unchecked(&fscache_n_retrievals_nobufs);
46258 else
46259 - fscache_stat(&fscache_n_retrievals_ok);
46260 + fscache_stat_unchecked(&fscache_n_retrievals_ok);
46261
46262 fscache_put_retrieval(op);
46263 _leave(" = %d", ret);
46264 @@ -545,7 +545,7 @@ nobufs_unlock:
46265 spin_unlock(&cookie->lock);
46266 kfree(op);
46267 nobufs:
46268 - fscache_stat(&fscache_n_retrievals_nobufs);
46269 + fscache_stat_unchecked(&fscache_n_retrievals_nobufs);
46270 _leave(" = -ENOBUFS");
46271 return -ENOBUFS;
46272 }
46273 @@ -569,7 +569,7 @@ int __fscache_alloc_page(struct fscache_cookie *cookie,
46274
46275 _enter("%p,%p,,,", cookie, page);
46276
46277 - fscache_stat(&fscache_n_allocs);
46278 + fscache_stat_unchecked(&fscache_n_allocs);
46279
46280 if (hlist_empty(&cookie->backing_objects))
46281 goto nobufs;
46282 @@ -595,7 +595,7 @@ int __fscache_alloc_page(struct fscache_cookie *cookie,
46283 goto nobufs_unlock;
46284 spin_unlock(&cookie->lock);
46285
46286 - fscache_stat(&fscache_n_alloc_ops);
46287 + fscache_stat_unchecked(&fscache_n_alloc_ops);
46288
46289 ret = fscache_wait_for_retrieval_activation(
46290 object, op,
46291 @@ -611,11 +611,11 @@ int __fscache_alloc_page(struct fscache_cookie *cookie,
46292
46293 error:
46294 if (ret == -ERESTARTSYS)
46295 - fscache_stat(&fscache_n_allocs_intr);
46296 + fscache_stat_unchecked(&fscache_n_allocs_intr);
46297 else if (ret < 0)
46298 - fscache_stat(&fscache_n_allocs_nobufs);
46299 + fscache_stat_unchecked(&fscache_n_allocs_nobufs);
46300 else
46301 - fscache_stat(&fscache_n_allocs_ok);
46302 + fscache_stat_unchecked(&fscache_n_allocs_ok);
46303
46304 fscache_put_retrieval(op);
46305 _leave(" = %d", ret);
46306 @@ -625,7 +625,7 @@ nobufs_unlock:
46307 spin_unlock(&cookie->lock);
46308 kfree(op);
46309 nobufs:
46310 - fscache_stat(&fscache_n_allocs_nobufs);
46311 + fscache_stat_unchecked(&fscache_n_allocs_nobufs);
46312 _leave(" = -ENOBUFS");
46313 return -ENOBUFS;
46314 }
46315 @@ -666,7 +666,7 @@ static void fscache_write_op(struct fscache_operation *_op)
46316
46317 spin_lock(&cookie->stores_lock);
46318
46319 - fscache_stat(&fscache_n_store_calls);
46320 + fscache_stat_unchecked(&fscache_n_store_calls);
46321
46322 /* find a page to store */
46323 page = NULL;
46324 @@ -677,7 +677,7 @@ static void fscache_write_op(struct fscache_operation *_op)
46325 page = results[0];
46326 _debug("gang %d [%lx]", n, page->index);
46327 if (page->index > op->store_limit) {
46328 - fscache_stat(&fscache_n_store_pages_over_limit);
46329 + fscache_stat_unchecked(&fscache_n_store_pages_over_limit);
46330 goto superseded;
46331 }
46332
46333 @@ -689,7 +689,7 @@ static void fscache_write_op(struct fscache_operation *_op)
46334 spin_unlock(&cookie->stores_lock);
46335 spin_unlock(&object->lock);
46336
46337 - fscache_stat(&fscache_n_store_pages);
46338 + fscache_stat_unchecked(&fscache_n_store_pages);
46339 fscache_stat(&fscache_n_cop_write_page);
46340 ret = object->cache->ops->write_page(op, page);
46341 fscache_stat_d(&fscache_n_cop_write_page);
46342 @@ -757,7 +757,7 @@ int __fscache_write_page(struct fscache_cookie *cookie,
46343 ASSERTCMP(cookie->def->type, !=, FSCACHE_COOKIE_TYPE_INDEX);
46344 ASSERT(PageFsCache(page));
46345
46346 - fscache_stat(&fscache_n_stores);
46347 + fscache_stat_unchecked(&fscache_n_stores);
46348
46349 op = kzalloc(sizeof(*op), GFP_NOIO);
46350 if (!op)
46351 @@ -808,7 +808,7 @@ int __fscache_write_page(struct fscache_cookie *cookie,
46352 spin_unlock(&cookie->stores_lock);
46353 spin_unlock(&object->lock);
46354
46355 - op->op.debug_id = atomic_inc_return(&fscache_op_debug_id);
46356 + op->op.debug_id = atomic_inc_return_unchecked(&fscache_op_debug_id);
46357 op->store_limit = object->store_limit;
46358
46359 if (fscache_submit_op(object, &op->op) < 0)
46360 @@ -816,8 +816,8 @@ int __fscache_write_page(struct fscache_cookie *cookie,
46361
46362 spin_unlock(&cookie->lock);
46363 radix_tree_preload_end();
46364 - fscache_stat(&fscache_n_store_ops);
46365 - fscache_stat(&fscache_n_stores_ok);
46366 + fscache_stat_unchecked(&fscache_n_store_ops);
46367 + fscache_stat_unchecked(&fscache_n_stores_ok);
46368
46369 /* the work queue now carries its own ref on the object */
46370 fscache_put_operation(&op->op);
46371 @@ -825,14 +825,14 @@ int __fscache_write_page(struct fscache_cookie *cookie,
46372 return 0;
46373
46374 already_queued:
46375 - fscache_stat(&fscache_n_stores_again);
46376 + fscache_stat_unchecked(&fscache_n_stores_again);
46377 already_pending:
46378 spin_unlock(&cookie->stores_lock);
46379 spin_unlock(&object->lock);
46380 spin_unlock(&cookie->lock);
46381 radix_tree_preload_end();
46382 kfree(op);
46383 - fscache_stat(&fscache_n_stores_ok);
46384 + fscache_stat_unchecked(&fscache_n_stores_ok);
46385 _leave(" = 0");
46386 return 0;
46387
46388 @@ -851,14 +851,14 @@ nobufs:
46389 spin_unlock(&cookie->lock);
46390 radix_tree_preload_end();
46391 kfree(op);
46392 - fscache_stat(&fscache_n_stores_nobufs);
46393 + fscache_stat_unchecked(&fscache_n_stores_nobufs);
46394 _leave(" = -ENOBUFS");
46395 return -ENOBUFS;
46396
46397 nomem_free:
46398 kfree(op);
46399 nomem:
46400 - fscache_stat(&fscache_n_stores_oom);
46401 + fscache_stat_unchecked(&fscache_n_stores_oom);
46402 _leave(" = -ENOMEM");
46403 return -ENOMEM;
46404 }
46405 @@ -876,7 +876,7 @@ void __fscache_uncache_page(struct fscache_cookie *cookie, struct page *page)
46406 ASSERTCMP(cookie->def->type, !=, FSCACHE_COOKIE_TYPE_INDEX);
46407 ASSERTCMP(page, !=, NULL);
46408
46409 - fscache_stat(&fscache_n_uncaches);
46410 + fscache_stat_unchecked(&fscache_n_uncaches);
46411
46412 /* cache withdrawal may beat us to it */
46413 if (!PageFsCache(page))
46414 @@ -929,7 +929,7 @@ void fscache_mark_pages_cached(struct fscache_retrieval *op,
46415 unsigned long loop;
46416
46417 #ifdef CONFIG_FSCACHE_STATS
46418 - atomic_add(pagevec->nr, &fscache_n_marks);
46419 + atomic_add_unchecked(pagevec->nr, &fscache_n_marks);
46420 #endif
46421
46422 for (loop = 0; loop < pagevec->nr; loop++) {
46423 diff --git a/fs/fscache/stats.c b/fs/fscache/stats.c
46424 index 4765190..2a067f2 100644
46425 --- a/fs/fscache/stats.c
46426 +++ b/fs/fscache/stats.c
46427 @@ -18,95 +18,95 @@
46428 /*
46429 * operation counters
46430 */
46431 -atomic_t fscache_n_op_pend;
46432 -atomic_t fscache_n_op_run;
46433 -atomic_t fscache_n_op_enqueue;
46434 -atomic_t fscache_n_op_requeue;
46435 -atomic_t fscache_n_op_deferred_release;
46436 -atomic_t fscache_n_op_release;
46437 -atomic_t fscache_n_op_gc;
46438 -atomic_t fscache_n_op_cancelled;
46439 -atomic_t fscache_n_op_rejected;
46440 +atomic_unchecked_t fscache_n_op_pend;
46441 +atomic_unchecked_t fscache_n_op_run;
46442 +atomic_unchecked_t fscache_n_op_enqueue;
46443 +atomic_unchecked_t fscache_n_op_requeue;
46444 +atomic_unchecked_t fscache_n_op_deferred_release;
46445 +atomic_unchecked_t fscache_n_op_release;
46446 +atomic_unchecked_t fscache_n_op_gc;
46447 +atomic_unchecked_t fscache_n_op_cancelled;
46448 +atomic_unchecked_t fscache_n_op_rejected;
46449
46450 -atomic_t fscache_n_attr_changed;
46451 -atomic_t fscache_n_attr_changed_ok;
46452 -atomic_t fscache_n_attr_changed_nobufs;
46453 -atomic_t fscache_n_attr_changed_nomem;
46454 -atomic_t fscache_n_attr_changed_calls;
46455 +atomic_unchecked_t fscache_n_attr_changed;
46456 +atomic_unchecked_t fscache_n_attr_changed_ok;
46457 +atomic_unchecked_t fscache_n_attr_changed_nobufs;
46458 +atomic_unchecked_t fscache_n_attr_changed_nomem;
46459 +atomic_unchecked_t fscache_n_attr_changed_calls;
46460
46461 -atomic_t fscache_n_allocs;
46462 -atomic_t fscache_n_allocs_ok;
46463 -atomic_t fscache_n_allocs_wait;
46464 -atomic_t fscache_n_allocs_nobufs;
46465 -atomic_t fscache_n_allocs_intr;
46466 -atomic_t fscache_n_allocs_object_dead;
46467 -atomic_t fscache_n_alloc_ops;
46468 -atomic_t fscache_n_alloc_op_waits;
46469 +atomic_unchecked_t fscache_n_allocs;
46470 +atomic_unchecked_t fscache_n_allocs_ok;
46471 +atomic_unchecked_t fscache_n_allocs_wait;
46472 +atomic_unchecked_t fscache_n_allocs_nobufs;
46473 +atomic_unchecked_t fscache_n_allocs_intr;
46474 +atomic_unchecked_t fscache_n_allocs_object_dead;
46475 +atomic_unchecked_t fscache_n_alloc_ops;
46476 +atomic_unchecked_t fscache_n_alloc_op_waits;
46477
46478 -atomic_t fscache_n_retrievals;
46479 -atomic_t fscache_n_retrievals_ok;
46480 -atomic_t fscache_n_retrievals_wait;
46481 -atomic_t fscache_n_retrievals_nodata;
46482 -atomic_t fscache_n_retrievals_nobufs;
46483 -atomic_t fscache_n_retrievals_intr;
46484 -atomic_t fscache_n_retrievals_nomem;
46485 -atomic_t fscache_n_retrievals_object_dead;
46486 -atomic_t fscache_n_retrieval_ops;
46487 -atomic_t fscache_n_retrieval_op_waits;
46488 +atomic_unchecked_t fscache_n_retrievals;
46489 +atomic_unchecked_t fscache_n_retrievals_ok;
46490 +atomic_unchecked_t fscache_n_retrievals_wait;
46491 +atomic_unchecked_t fscache_n_retrievals_nodata;
46492 +atomic_unchecked_t fscache_n_retrievals_nobufs;
46493 +atomic_unchecked_t fscache_n_retrievals_intr;
46494 +atomic_unchecked_t fscache_n_retrievals_nomem;
46495 +atomic_unchecked_t fscache_n_retrievals_object_dead;
46496 +atomic_unchecked_t fscache_n_retrieval_ops;
46497 +atomic_unchecked_t fscache_n_retrieval_op_waits;
46498
46499 -atomic_t fscache_n_stores;
46500 -atomic_t fscache_n_stores_ok;
46501 -atomic_t fscache_n_stores_again;
46502 -atomic_t fscache_n_stores_nobufs;
46503 -atomic_t fscache_n_stores_oom;
46504 -atomic_t fscache_n_store_ops;
46505 -atomic_t fscache_n_store_calls;
46506 -atomic_t fscache_n_store_pages;
46507 -atomic_t fscache_n_store_radix_deletes;
46508 -atomic_t fscache_n_store_pages_over_limit;
46509 +atomic_unchecked_t fscache_n_stores;
46510 +atomic_unchecked_t fscache_n_stores_ok;
46511 +atomic_unchecked_t fscache_n_stores_again;
46512 +atomic_unchecked_t fscache_n_stores_nobufs;
46513 +atomic_unchecked_t fscache_n_stores_oom;
46514 +atomic_unchecked_t fscache_n_store_ops;
46515 +atomic_unchecked_t fscache_n_store_calls;
46516 +atomic_unchecked_t fscache_n_store_pages;
46517 +atomic_unchecked_t fscache_n_store_radix_deletes;
46518 +atomic_unchecked_t fscache_n_store_pages_over_limit;
46519
46520 -atomic_t fscache_n_store_vmscan_not_storing;
46521 -atomic_t fscache_n_store_vmscan_gone;
46522 -atomic_t fscache_n_store_vmscan_busy;
46523 -atomic_t fscache_n_store_vmscan_cancelled;
46524 +atomic_unchecked_t fscache_n_store_vmscan_not_storing;
46525 +atomic_unchecked_t fscache_n_store_vmscan_gone;
46526 +atomic_unchecked_t fscache_n_store_vmscan_busy;
46527 +atomic_unchecked_t fscache_n_store_vmscan_cancelled;
46528
46529 -atomic_t fscache_n_marks;
46530 -atomic_t fscache_n_uncaches;
46531 +atomic_unchecked_t fscache_n_marks;
46532 +atomic_unchecked_t fscache_n_uncaches;
46533
46534 -atomic_t fscache_n_acquires;
46535 -atomic_t fscache_n_acquires_null;
46536 -atomic_t fscache_n_acquires_no_cache;
46537 -atomic_t fscache_n_acquires_ok;
46538 -atomic_t fscache_n_acquires_nobufs;
46539 -atomic_t fscache_n_acquires_oom;
46540 +atomic_unchecked_t fscache_n_acquires;
46541 +atomic_unchecked_t fscache_n_acquires_null;
46542 +atomic_unchecked_t fscache_n_acquires_no_cache;
46543 +atomic_unchecked_t fscache_n_acquires_ok;
46544 +atomic_unchecked_t fscache_n_acquires_nobufs;
46545 +atomic_unchecked_t fscache_n_acquires_oom;
46546
46547 -atomic_t fscache_n_updates;
46548 -atomic_t fscache_n_updates_null;
46549 -atomic_t fscache_n_updates_run;
46550 +atomic_unchecked_t fscache_n_updates;
46551 +atomic_unchecked_t fscache_n_updates_null;
46552 +atomic_unchecked_t fscache_n_updates_run;
46553
46554 -atomic_t fscache_n_relinquishes;
46555 -atomic_t fscache_n_relinquishes_null;
46556 -atomic_t fscache_n_relinquishes_waitcrt;
46557 -atomic_t fscache_n_relinquishes_retire;
46558 +atomic_unchecked_t fscache_n_relinquishes;
46559 +atomic_unchecked_t fscache_n_relinquishes_null;
46560 +atomic_unchecked_t fscache_n_relinquishes_waitcrt;
46561 +atomic_unchecked_t fscache_n_relinquishes_retire;
46562
46563 -atomic_t fscache_n_cookie_index;
46564 -atomic_t fscache_n_cookie_data;
46565 -atomic_t fscache_n_cookie_special;
46566 +atomic_unchecked_t fscache_n_cookie_index;
46567 +atomic_unchecked_t fscache_n_cookie_data;
46568 +atomic_unchecked_t fscache_n_cookie_special;
46569
46570 -atomic_t fscache_n_object_alloc;
46571 -atomic_t fscache_n_object_no_alloc;
46572 -atomic_t fscache_n_object_lookups;
46573 -atomic_t fscache_n_object_lookups_negative;
46574 -atomic_t fscache_n_object_lookups_positive;
46575 -atomic_t fscache_n_object_lookups_timed_out;
46576 -atomic_t fscache_n_object_created;
46577 -atomic_t fscache_n_object_avail;
46578 -atomic_t fscache_n_object_dead;
46579 +atomic_unchecked_t fscache_n_object_alloc;
46580 +atomic_unchecked_t fscache_n_object_no_alloc;
46581 +atomic_unchecked_t fscache_n_object_lookups;
46582 +atomic_unchecked_t fscache_n_object_lookups_negative;
46583 +atomic_unchecked_t fscache_n_object_lookups_positive;
46584 +atomic_unchecked_t fscache_n_object_lookups_timed_out;
46585 +atomic_unchecked_t fscache_n_object_created;
46586 +atomic_unchecked_t fscache_n_object_avail;
46587 +atomic_unchecked_t fscache_n_object_dead;
46588
46589 -atomic_t fscache_n_checkaux_none;
46590 -atomic_t fscache_n_checkaux_okay;
46591 -atomic_t fscache_n_checkaux_update;
46592 -atomic_t fscache_n_checkaux_obsolete;
46593 +atomic_unchecked_t fscache_n_checkaux_none;
46594 +atomic_unchecked_t fscache_n_checkaux_okay;
46595 +atomic_unchecked_t fscache_n_checkaux_update;
46596 +atomic_unchecked_t fscache_n_checkaux_obsolete;
46597
46598 atomic_t fscache_n_cop_alloc_object;
46599 atomic_t fscache_n_cop_lookup_object;
46600 @@ -133,113 +133,113 @@ static int fscache_stats_show(struct seq_file *m, void *v)
46601 seq_puts(m, "FS-Cache statistics\n");
46602
46603 seq_printf(m, "Cookies: idx=%u dat=%u spc=%u\n",
46604 - atomic_read(&fscache_n_cookie_index),
46605 - atomic_read(&fscache_n_cookie_data),
46606 - atomic_read(&fscache_n_cookie_special));
46607 + atomic_read_unchecked(&fscache_n_cookie_index),
46608 + atomic_read_unchecked(&fscache_n_cookie_data),
46609 + atomic_read_unchecked(&fscache_n_cookie_special));
46610
46611 seq_printf(m, "Objects: alc=%u nal=%u avl=%u ded=%u\n",
46612 - atomic_read(&fscache_n_object_alloc),
46613 - atomic_read(&fscache_n_object_no_alloc),
46614 - atomic_read(&fscache_n_object_avail),
46615 - atomic_read(&fscache_n_object_dead));
46616 + atomic_read_unchecked(&fscache_n_object_alloc),
46617 + atomic_read_unchecked(&fscache_n_object_no_alloc),
46618 + atomic_read_unchecked(&fscache_n_object_avail),
46619 + atomic_read_unchecked(&fscache_n_object_dead));
46620 seq_printf(m, "ChkAux : non=%u ok=%u upd=%u obs=%u\n",
46621 - atomic_read(&fscache_n_checkaux_none),
46622 - atomic_read(&fscache_n_checkaux_okay),
46623 - atomic_read(&fscache_n_checkaux_update),
46624 - atomic_read(&fscache_n_checkaux_obsolete));
46625 + atomic_read_unchecked(&fscache_n_checkaux_none),
46626 + atomic_read_unchecked(&fscache_n_checkaux_okay),
46627 + atomic_read_unchecked(&fscache_n_checkaux_update),
46628 + atomic_read_unchecked(&fscache_n_checkaux_obsolete));
46629
46630 seq_printf(m, "Pages : mrk=%u unc=%u\n",
46631 - atomic_read(&fscache_n_marks),
46632 - atomic_read(&fscache_n_uncaches));
46633 + atomic_read_unchecked(&fscache_n_marks),
46634 + atomic_read_unchecked(&fscache_n_uncaches));
46635
46636 seq_printf(m, "Acquire: n=%u nul=%u noc=%u ok=%u nbf=%u"
46637 " oom=%u\n",
46638 - atomic_read(&fscache_n_acquires),
46639 - atomic_read(&fscache_n_acquires_null),
46640 - atomic_read(&fscache_n_acquires_no_cache),
46641 - atomic_read(&fscache_n_acquires_ok),
46642 - atomic_read(&fscache_n_acquires_nobufs),
46643 - atomic_read(&fscache_n_acquires_oom));
46644 + atomic_read_unchecked(&fscache_n_acquires),
46645 + atomic_read_unchecked(&fscache_n_acquires_null),
46646 + atomic_read_unchecked(&fscache_n_acquires_no_cache),
46647 + atomic_read_unchecked(&fscache_n_acquires_ok),
46648 + atomic_read_unchecked(&fscache_n_acquires_nobufs),
46649 + atomic_read_unchecked(&fscache_n_acquires_oom));
46650
46651 seq_printf(m, "Lookups: n=%u neg=%u pos=%u crt=%u tmo=%u\n",
46652 - atomic_read(&fscache_n_object_lookups),
46653 - atomic_read(&fscache_n_object_lookups_negative),
46654 - atomic_read(&fscache_n_object_lookups_positive),
46655 - atomic_read(&fscache_n_object_created),
46656 - atomic_read(&fscache_n_object_lookups_timed_out));
46657 + atomic_read_unchecked(&fscache_n_object_lookups),
46658 + atomic_read_unchecked(&fscache_n_object_lookups_negative),
46659 + atomic_read_unchecked(&fscache_n_object_lookups_positive),
46660 + atomic_read_unchecked(&fscache_n_object_created),
46661 + atomic_read_unchecked(&fscache_n_object_lookups_timed_out));
46662
46663 seq_printf(m, "Updates: n=%u nul=%u run=%u\n",
46664 - atomic_read(&fscache_n_updates),
46665 - atomic_read(&fscache_n_updates_null),
46666 - atomic_read(&fscache_n_updates_run));
46667 + atomic_read_unchecked(&fscache_n_updates),
46668 + atomic_read_unchecked(&fscache_n_updates_null),
46669 + atomic_read_unchecked(&fscache_n_updates_run));
46670
46671 seq_printf(m, "Relinqs: n=%u nul=%u wcr=%u rtr=%u\n",
46672 - atomic_read(&fscache_n_relinquishes),
46673 - atomic_read(&fscache_n_relinquishes_null),
46674 - atomic_read(&fscache_n_relinquishes_waitcrt),
46675 - atomic_read(&fscache_n_relinquishes_retire));
46676 + atomic_read_unchecked(&fscache_n_relinquishes),
46677 + atomic_read_unchecked(&fscache_n_relinquishes_null),
46678 + atomic_read_unchecked(&fscache_n_relinquishes_waitcrt),
46679 + atomic_read_unchecked(&fscache_n_relinquishes_retire));
46680
46681 seq_printf(m, "AttrChg: n=%u ok=%u nbf=%u oom=%u run=%u\n",
46682 - atomic_read(&fscache_n_attr_changed),
46683 - atomic_read(&fscache_n_attr_changed_ok),
46684 - atomic_read(&fscache_n_attr_changed_nobufs),
46685 - atomic_read(&fscache_n_attr_changed_nomem),
46686 - atomic_read(&fscache_n_attr_changed_calls));
46687 + atomic_read_unchecked(&fscache_n_attr_changed),
46688 + atomic_read_unchecked(&fscache_n_attr_changed_ok),
46689 + atomic_read_unchecked(&fscache_n_attr_changed_nobufs),
46690 + atomic_read_unchecked(&fscache_n_attr_changed_nomem),
46691 + atomic_read_unchecked(&fscache_n_attr_changed_calls));
46692
46693 seq_printf(m, "Allocs : n=%u ok=%u wt=%u nbf=%u int=%u\n",
46694 - atomic_read(&fscache_n_allocs),
46695 - atomic_read(&fscache_n_allocs_ok),
46696 - atomic_read(&fscache_n_allocs_wait),
46697 - atomic_read(&fscache_n_allocs_nobufs),
46698 - atomic_read(&fscache_n_allocs_intr));
46699 + atomic_read_unchecked(&fscache_n_allocs),
46700 + atomic_read_unchecked(&fscache_n_allocs_ok),
46701 + atomic_read_unchecked(&fscache_n_allocs_wait),
46702 + atomic_read_unchecked(&fscache_n_allocs_nobufs),
46703 + atomic_read_unchecked(&fscache_n_allocs_intr));
46704 seq_printf(m, "Allocs : ops=%u owt=%u abt=%u\n",
46705 - atomic_read(&fscache_n_alloc_ops),
46706 - atomic_read(&fscache_n_alloc_op_waits),
46707 - atomic_read(&fscache_n_allocs_object_dead));
46708 + atomic_read_unchecked(&fscache_n_alloc_ops),
46709 + atomic_read_unchecked(&fscache_n_alloc_op_waits),
46710 + atomic_read_unchecked(&fscache_n_allocs_object_dead));
46711
46712 seq_printf(m, "Retrvls: n=%u ok=%u wt=%u nod=%u nbf=%u"
46713 " int=%u oom=%u\n",
46714 - atomic_read(&fscache_n_retrievals),
46715 - atomic_read(&fscache_n_retrievals_ok),
46716 - atomic_read(&fscache_n_retrievals_wait),
46717 - atomic_read(&fscache_n_retrievals_nodata),
46718 - atomic_read(&fscache_n_retrievals_nobufs),
46719 - atomic_read(&fscache_n_retrievals_intr),
46720 - atomic_read(&fscache_n_retrievals_nomem));
46721 + atomic_read_unchecked(&fscache_n_retrievals),
46722 + atomic_read_unchecked(&fscache_n_retrievals_ok),
46723 + atomic_read_unchecked(&fscache_n_retrievals_wait),
46724 + atomic_read_unchecked(&fscache_n_retrievals_nodata),
46725 + atomic_read_unchecked(&fscache_n_retrievals_nobufs),
46726 + atomic_read_unchecked(&fscache_n_retrievals_intr),
46727 + atomic_read_unchecked(&fscache_n_retrievals_nomem));
46728 seq_printf(m, "Retrvls: ops=%u owt=%u abt=%u\n",
46729 - atomic_read(&fscache_n_retrieval_ops),
46730 - atomic_read(&fscache_n_retrieval_op_waits),
46731 - atomic_read(&fscache_n_retrievals_object_dead));
46732 + atomic_read_unchecked(&fscache_n_retrieval_ops),
46733 + atomic_read_unchecked(&fscache_n_retrieval_op_waits),
46734 + atomic_read_unchecked(&fscache_n_retrievals_object_dead));
46735
46736 seq_printf(m, "Stores : n=%u ok=%u agn=%u nbf=%u oom=%u\n",
46737 - atomic_read(&fscache_n_stores),
46738 - atomic_read(&fscache_n_stores_ok),
46739 - atomic_read(&fscache_n_stores_again),
46740 - atomic_read(&fscache_n_stores_nobufs),
46741 - atomic_read(&fscache_n_stores_oom));
46742 + atomic_read_unchecked(&fscache_n_stores),
46743 + atomic_read_unchecked(&fscache_n_stores_ok),
46744 + atomic_read_unchecked(&fscache_n_stores_again),
46745 + atomic_read_unchecked(&fscache_n_stores_nobufs),
46746 + atomic_read_unchecked(&fscache_n_stores_oom));
46747 seq_printf(m, "Stores : ops=%u run=%u pgs=%u rxd=%u olm=%u\n",
46748 - atomic_read(&fscache_n_store_ops),
46749 - atomic_read(&fscache_n_store_calls),
46750 - atomic_read(&fscache_n_store_pages),
46751 - atomic_read(&fscache_n_store_radix_deletes),
46752 - atomic_read(&fscache_n_store_pages_over_limit));
46753 + atomic_read_unchecked(&fscache_n_store_ops),
46754 + atomic_read_unchecked(&fscache_n_store_calls),
46755 + atomic_read_unchecked(&fscache_n_store_pages),
46756 + atomic_read_unchecked(&fscache_n_store_radix_deletes),
46757 + atomic_read_unchecked(&fscache_n_store_pages_over_limit));
46758
46759 seq_printf(m, "VmScan : nos=%u gon=%u bsy=%u can=%u\n",
46760 - atomic_read(&fscache_n_store_vmscan_not_storing),
46761 - atomic_read(&fscache_n_store_vmscan_gone),
46762 - atomic_read(&fscache_n_store_vmscan_busy),
46763 - atomic_read(&fscache_n_store_vmscan_cancelled));
46764 + atomic_read_unchecked(&fscache_n_store_vmscan_not_storing),
46765 + atomic_read_unchecked(&fscache_n_store_vmscan_gone),
46766 + atomic_read_unchecked(&fscache_n_store_vmscan_busy),
46767 + atomic_read_unchecked(&fscache_n_store_vmscan_cancelled));
46768
46769 seq_printf(m, "Ops : pend=%u run=%u enq=%u can=%u rej=%u\n",
46770 - atomic_read(&fscache_n_op_pend),
46771 - atomic_read(&fscache_n_op_run),
46772 - atomic_read(&fscache_n_op_enqueue),
46773 - atomic_read(&fscache_n_op_cancelled),
46774 - atomic_read(&fscache_n_op_rejected));
46775 + atomic_read_unchecked(&fscache_n_op_pend),
46776 + atomic_read_unchecked(&fscache_n_op_run),
46777 + atomic_read_unchecked(&fscache_n_op_enqueue),
46778 + atomic_read_unchecked(&fscache_n_op_cancelled),
46779 + atomic_read_unchecked(&fscache_n_op_rejected));
46780 seq_printf(m, "Ops : dfr=%u rel=%u gc=%u\n",
46781 - atomic_read(&fscache_n_op_deferred_release),
46782 - atomic_read(&fscache_n_op_release),
46783 - atomic_read(&fscache_n_op_gc));
46784 + atomic_read_unchecked(&fscache_n_op_deferred_release),
46785 + atomic_read_unchecked(&fscache_n_op_release),
46786 + atomic_read_unchecked(&fscache_n_op_gc));
46787
46788 seq_printf(m, "CacheOp: alo=%d luo=%d luc=%d gro=%d\n",
46789 atomic_read(&fscache_n_cop_alloc_object),
46790 diff --git a/fs/fuse/cuse.c b/fs/fuse/cuse.c
46791 index 3426521..3b75162 100644
46792 --- a/fs/fuse/cuse.c
46793 +++ b/fs/fuse/cuse.c
46794 @@ -587,10 +587,12 @@ static int __init cuse_init(void)
46795 INIT_LIST_HEAD(&cuse_conntbl[i]);
46796
46797 /* inherit and extend fuse_dev_operations */
46798 - cuse_channel_fops = fuse_dev_operations;
46799 - cuse_channel_fops.owner = THIS_MODULE;
46800 - cuse_channel_fops.open = cuse_channel_open;
46801 - cuse_channel_fops.release = cuse_channel_release;
46802 + pax_open_kernel();
46803 + memcpy((void *)&cuse_channel_fops, &fuse_dev_operations, sizeof(fuse_dev_operations));
46804 + *(void **)&cuse_channel_fops.owner = THIS_MODULE;
46805 + *(void **)&cuse_channel_fops.open = cuse_channel_open;
46806 + *(void **)&cuse_channel_fops.release = cuse_channel_release;
46807 + pax_close_kernel();
46808
46809 cuse_class = class_create(THIS_MODULE, "cuse");
46810 if (IS_ERR(cuse_class))
46811 diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
46812 index 7df2b5e..5804aa7 100644
46813 --- a/fs/fuse/dev.c
46814 +++ b/fs/fuse/dev.c
46815 @@ -1242,7 +1242,7 @@ static ssize_t fuse_dev_splice_read(struct file *in, loff_t *ppos,
46816 ret = 0;
46817 pipe_lock(pipe);
46818
46819 - if (!pipe->readers) {
46820 + if (!atomic_read(&pipe->readers)) {
46821 send_sig(SIGPIPE, current, 0);
46822 if (!ret)
46823 ret = -EPIPE;
46824 diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
46825 index 334e0b1..fc571e8 100644
46826 --- a/fs/fuse/dir.c
46827 +++ b/fs/fuse/dir.c
46828 @@ -1189,7 +1189,7 @@ static char *read_link(struct dentry *dentry)
46829 return link;
46830 }
46831
46832 -static void free_link(char *link)
46833 +static void free_link(const char *link)
46834 {
46835 if (!IS_ERR(link))
46836 free_page((unsigned long) link);
46837 diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
46838 index a9ba244..d9df391 100644
46839 --- a/fs/gfs2/inode.c
46840 +++ b/fs/gfs2/inode.c
46841 @@ -1496,7 +1496,7 @@ out:
46842
46843 static void gfs2_put_link(struct dentry *dentry, struct nameidata *nd, void *p)
46844 {
46845 - char *s = nd_get_link(nd);
46846 + const char *s = nd_get_link(nd);
46847 if (!IS_ERR(s))
46848 kfree(s);
46849 }
46850 diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
46851 index cc9281b..58996fb 100644
46852 --- a/fs/hugetlbfs/inode.c
46853 +++ b/fs/hugetlbfs/inode.c
46854 @@ -920,7 +920,7 @@ static struct file_system_type hugetlbfs_fs_type = {
46855 .kill_sb = kill_litter_super,
46856 };
46857
46858 -static struct vfsmount *hugetlbfs_vfsmount;
46859 +struct vfsmount *hugetlbfs_vfsmount;
46860
46861 static int can_do_hugetlb_shm(void)
46862 {
46863 diff --git a/fs/inode.c b/fs/inode.c
46864 index c99163b..a11ad40 100644
46865 --- a/fs/inode.c
46866 +++ b/fs/inode.c
46867 @@ -867,8 +867,8 @@ unsigned int get_next_ino(void)
46868
46869 #ifdef CONFIG_SMP
46870 if (unlikely((res & (LAST_INO_BATCH-1)) == 0)) {
46871 - static atomic_t shared_last_ino;
46872 - int next = atomic_add_return(LAST_INO_BATCH, &shared_last_ino);
46873 + static atomic_unchecked_t shared_last_ino;
46874 + int next = atomic_add_return_unchecked(LAST_INO_BATCH, &shared_last_ino);
46875
46876 res = next - LAST_INO_BATCH;
46877 }
46878 diff --git a/fs/jffs2/erase.c b/fs/jffs2/erase.c
46879 index 4a6cf28..d3a29d3 100644
46880 --- a/fs/jffs2/erase.c
46881 +++ b/fs/jffs2/erase.c
46882 @@ -452,7 +452,8 @@ static void jffs2_mark_erased_block(struct jffs2_sb_info *c, struct jffs2_eraseb
46883 struct jffs2_unknown_node marker = {
46884 .magic = cpu_to_je16(JFFS2_MAGIC_BITMASK),
46885 .nodetype = cpu_to_je16(JFFS2_NODETYPE_CLEANMARKER),
46886 - .totlen = cpu_to_je32(c->cleanmarker_size)
46887 + .totlen = cpu_to_je32(c->cleanmarker_size),
46888 + .hdr_crc = cpu_to_je32(0)
46889 };
46890
46891 jffs2_prealloc_raw_node_refs(c, jeb, 1);
46892 diff --git a/fs/jffs2/wbuf.c b/fs/jffs2/wbuf.c
46893 index 6f4529d..bf12806 100644
46894 --- a/fs/jffs2/wbuf.c
46895 +++ b/fs/jffs2/wbuf.c
46896 @@ -1023,7 +1023,8 @@ static const struct jffs2_unknown_node oob_cleanmarker =
46897 {
46898 .magic = constant_cpu_to_je16(JFFS2_MAGIC_BITMASK),
46899 .nodetype = constant_cpu_to_je16(JFFS2_NODETYPE_CLEANMARKER),
46900 - .totlen = constant_cpu_to_je32(8)
46901 + .totlen = constant_cpu_to_je32(8),
46902 + .hdr_crc = constant_cpu_to_je32(0)
46903 };
46904
46905 /*
46906 diff --git a/fs/jfs/super.c b/fs/jfs/super.c
46907 index 4a82950..bcaa0cb 100644
46908 --- a/fs/jfs/super.c
46909 +++ b/fs/jfs/super.c
46910 @@ -801,7 +801,7 @@ static int __init init_jfs_fs(void)
46911
46912 jfs_inode_cachep =
46913 kmem_cache_create("jfs_ip", sizeof(struct jfs_inode_info), 0,
46914 - SLAB_RECLAIM_ACCOUNT|SLAB_MEM_SPREAD,
46915 + SLAB_RECLAIM_ACCOUNT|SLAB_MEM_SPREAD|SLAB_USERCOPY,
46916 init_once);
46917 if (jfs_inode_cachep == NULL)
46918 return -ENOMEM;
46919 diff --git a/fs/libfs.c b/fs/libfs.c
46920 index f86ec27..4734776 100644
46921 --- a/fs/libfs.c
46922 +++ b/fs/libfs.c
46923 @@ -165,6 +165,9 @@ int dcache_readdir(struct file * filp, void * dirent, filldir_t filldir)
46924
46925 for (p=q->next; p != &dentry->d_subdirs; p=p->next) {
46926 struct dentry *next;
46927 + char d_name[sizeof(next->d_iname)];
46928 + const unsigned char *name;
46929 +
46930 next = list_entry(p, struct dentry, d_u.d_child);
46931 spin_lock_nested(&next->d_lock, DENTRY_D_LOCK_NESTED);
46932 if (!simple_positive(next)) {
46933 @@ -174,7 +177,12 @@ int dcache_readdir(struct file * filp, void * dirent, filldir_t filldir)
46934
46935 spin_unlock(&next->d_lock);
46936 spin_unlock(&dentry->d_lock);
46937 - if (filldir(dirent, next->d_name.name,
46938 + name = next->d_name.name;
46939 + if (name == next->d_iname) {
46940 + memcpy(d_name, name, next->d_name.len);
46941 + name = d_name;
46942 + }
46943 + if (filldir(dirent, name,
46944 next->d_name.len, filp->f_pos,
46945 next->d_inode->i_ino,
46946 dt_type(next->d_inode)) < 0)
46947 diff --git a/fs/lockd/clntproc.c b/fs/lockd/clntproc.c
46948 index 8392cb8..80d6193 100644
46949 --- a/fs/lockd/clntproc.c
46950 +++ b/fs/lockd/clntproc.c
46951 @@ -36,11 +36,11 @@ static const struct rpc_call_ops nlmclnt_cancel_ops;
46952 /*
46953 * Cookie counter for NLM requests
46954 */
46955 -static atomic_t nlm_cookie = ATOMIC_INIT(0x1234);
46956 +static atomic_unchecked_t nlm_cookie = ATOMIC_INIT(0x1234);
46957
46958 void nlmclnt_next_cookie(struct nlm_cookie *c)
46959 {
46960 - u32 cookie = atomic_inc_return(&nlm_cookie);
46961 + u32 cookie = atomic_inc_return_unchecked(&nlm_cookie);
46962
46963 memcpy(c->data, &cookie, 4);
46964 c->len=4;
46965 diff --git a/fs/locks.c b/fs/locks.c
46966 index 82c3533..34e929c 100644
46967 --- a/fs/locks.c
46968 +++ b/fs/locks.c
46969 @@ -2076,16 +2076,16 @@ void locks_remove_flock(struct file *filp)
46970 return;
46971
46972 if (filp->f_op && filp->f_op->flock) {
46973 - struct file_lock fl = {
46974 + struct file_lock flock = {
46975 .fl_pid = current->tgid,
46976 .fl_file = filp,
46977 .fl_flags = FL_FLOCK,
46978 .fl_type = F_UNLCK,
46979 .fl_end = OFFSET_MAX,
46980 };
46981 - filp->f_op->flock(filp, F_SETLKW, &fl);
46982 - if (fl.fl_ops && fl.fl_ops->fl_release_private)
46983 - fl.fl_ops->fl_release_private(&fl);
46984 + filp->f_op->flock(filp, F_SETLKW, &flock);
46985 + if (flock.fl_ops && flock.fl_ops->fl_release_private)
46986 + flock.fl_ops->fl_release_private(&flock);
46987 }
46988
46989 lock_flocks();
46990 diff --git a/fs/namei.c b/fs/namei.c
46991 index 7d69419..10c6af6 100644
46992 --- a/fs/namei.c
46993 +++ b/fs/namei.c
46994 @@ -265,16 +265,32 @@ int generic_permission(struct inode *inode, int mask)
46995 if (ret != -EACCES)
46996 return ret;
46997
46998 +#ifdef CONFIG_GRKERNSEC
46999 + /* we'll block if we have to log due to a denied capability use */
47000 + if (mask & MAY_NOT_BLOCK)
47001 + return -ECHILD;
47002 +#endif
47003 +
47004 if (S_ISDIR(inode->i_mode)) {
47005 /* DACs are overridable for directories */
47006 - if (inode_capable(inode, CAP_DAC_OVERRIDE))
47007 - return 0;
47008 if (!(mask & MAY_WRITE))
47009 - if (inode_capable(inode, CAP_DAC_READ_SEARCH))
47010 + if (inode_capable_nolog(inode, CAP_DAC_OVERRIDE) ||
47011 + inode_capable(inode, CAP_DAC_READ_SEARCH))
47012 return 0;
47013 + if (inode_capable(inode, CAP_DAC_OVERRIDE))
47014 + return 0;
47015 return -EACCES;
47016 }
47017 /*
47018 + * Searching includes executable on directories, else just read.
47019 + */
47020 + mask &= MAY_READ | MAY_WRITE | MAY_EXEC;
47021 + if (mask == MAY_READ)
47022 + if (inode_capable_nolog(inode, CAP_DAC_OVERRIDE) ||
47023 + inode_capable(inode, CAP_DAC_READ_SEARCH))
47024 + return 0;
47025 +
47026 + /*
47027 * Read/write DACs are always overridable.
47028 * Executable DACs are overridable when there is
47029 * at least one exec bit set.
47030 @@ -283,14 +299,6 @@ int generic_permission(struct inode *inode, int mask)
47031 if (inode_capable(inode, CAP_DAC_OVERRIDE))
47032 return 0;
47033
47034 - /*
47035 - * Searching includes executable on directories, else just read.
47036 - */
47037 - mask &= MAY_READ | MAY_WRITE | MAY_EXEC;
47038 - if (mask == MAY_READ)
47039 - if (inode_capable(inode, CAP_DAC_READ_SEARCH))
47040 - return 0;
47041 -
47042 return -EACCES;
47043 }
47044
47045 @@ -639,11 +647,19 @@ follow_link(struct path *link, struct nameidata *nd, void **p)
47046 return error;
47047 }
47048
47049 + if (gr_handle_follow_link(dentry->d_parent->d_inode,
47050 + dentry->d_inode, dentry, nd->path.mnt)) {
47051 + error = -EACCES;
47052 + *p = ERR_PTR(error); /* no ->put_link(), please */
47053 + path_put(&nd->path);
47054 + return error;
47055 + }
47056 +
47057 nd->last_type = LAST_BIND;
47058 *p = dentry->d_inode->i_op->follow_link(dentry, nd);
47059 error = PTR_ERR(*p);
47060 if (!IS_ERR(*p)) {
47061 - char *s = nd_get_link(nd);
47062 + const char *s = nd_get_link(nd);
47063 error = 0;
47064 if (s)
47065 error = __vfs_follow_link(nd, s);
47066 @@ -1386,6 +1402,8 @@ static inline int nested_symlink(struct path *path, struct nameidata *nd)
47067 if (!res)
47068 res = walk_component(nd, path, &nd->last,
47069 nd->last_type, LOOKUP_FOLLOW);
47070 + if (res >= 0 && gr_handle_symlink_owner(&link, nd->inode))
47071 + res = -EACCES;
47072 put_link(nd, &link, cookie);
47073 } while (res > 0);
47074
47075 @@ -1779,6 +1797,8 @@ static int path_lookupat(int dfd, const char *name,
47076 err = follow_link(&link, nd, &cookie);
47077 if (!err)
47078 err = lookup_last(nd, &path);
47079 + if (!err && gr_handle_symlink_owner(&link, nd->inode))
47080 + err = -EACCES;
47081 put_link(nd, &link, cookie);
47082 }
47083 }
47084 @@ -1786,6 +1806,21 @@ static int path_lookupat(int dfd, const char *name,
47085 if (!err)
47086 err = complete_walk(nd);
47087
47088 + if (!(nd->flags & LOOKUP_PARENT)) {
47089 +#ifdef CONFIG_GRKERNSEC
47090 + if (flags & LOOKUP_RCU) {
47091 + if (!err)
47092 + path_put(&nd->path);
47093 + err = -ECHILD;
47094 + } else
47095 +#endif
47096 + if (!gr_acl_handle_hidden_file(nd->path.dentry, nd->path.mnt)) {
47097 + if (!err)
47098 + path_put(&nd->path);
47099 + err = -ENOENT;
47100 + }
47101 + }
47102 +
47103 if (!err && nd->flags & LOOKUP_DIRECTORY) {
47104 if (!nd->inode->i_op->lookup) {
47105 path_put(&nd->path);
47106 @@ -1813,6 +1848,15 @@ static int do_path_lookup(int dfd, const char *name,
47107 retval = path_lookupat(dfd, name, flags | LOOKUP_REVAL, nd);
47108
47109 if (likely(!retval)) {
47110 + if (*name != '/' && nd->path.dentry && nd->inode) {
47111 +#ifdef CONFIG_GRKERNSEC
47112 + if (flags & LOOKUP_RCU)
47113 + return -ECHILD;
47114 +#endif
47115 + if (!gr_chroot_fchdir(nd->path.dentry, nd->path.mnt))
47116 + return -ENOENT;
47117 + }
47118 +
47119 if (unlikely(!audit_dummy_context())) {
47120 if (nd->path.dentry && nd->inode)
47121 audit_inode(name, nd->path.dentry);
47122 @@ -2155,6 +2199,13 @@ static int may_open(struct path *path, int acc_mode, int flag)
47123 if (flag & O_NOATIME && !inode_owner_or_capable(inode))
47124 return -EPERM;
47125
47126 + if (gr_handle_rofs_blockwrite(dentry, path->mnt, acc_mode))
47127 + return -EPERM;
47128 + if (gr_handle_rawio(inode))
47129 + return -EPERM;
47130 + if (!gr_acl_handle_open(dentry, path->mnt, acc_mode))
47131 + return -EACCES;
47132 +
47133 return 0;
47134 }
47135
47136 @@ -2190,7 +2241,7 @@ static inline int open_to_namei_flags(int flag)
47137 /*
47138 * Handle the last step of open()
47139 */
47140 -static struct file *do_last(struct nameidata *nd, struct path *path,
47141 +static struct file *do_last(struct nameidata *nd, struct path *path, struct path *link,
47142 const struct open_flags *op, const char *pathname)
47143 {
47144 struct dentry *dir = nd->path.dentry;
47145 @@ -2220,16 +2271,44 @@ static struct file *do_last(struct nameidata *nd, struct path *path,
47146 error = complete_walk(nd);
47147 if (error)
47148 return ERR_PTR(error);
47149 +#ifdef CONFIG_GRKERNSEC
47150 + if (nd->flags & LOOKUP_RCU) {
47151 + error = -ECHILD;
47152 + goto exit;
47153 + }
47154 +#endif
47155 + if (!gr_acl_handle_hidden_file(nd->path.dentry, nd->path.mnt)) {
47156 + error = -ENOENT;
47157 + goto exit;
47158 + }
47159 audit_inode(pathname, nd->path.dentry);
47160 if (open_flag & O_CREAT) {
47161 error = -EISDIR;
47162 goto exit;
47163 }
47164 + if (link && gr_handle_symlink_owner(link, nd->inode)) {
47165 + error = -EACCES;
47166 + goto exit;
47167 + }
47168 goto ok;
47169 case LAST_BIND:
47170 error = complete_walk(nd);
47171 if (error)
47172 return ERR_PTR(error);
47173 +#ifdef CONFIG_GRKERNSEC
47174 + if (nd->flags & LOOKUP_RCU) {
47175 + error = -ECHILD;
47176 + goto exit;
47177 + }
47178 +#endif
47179 + if (!gr_acl_handle_hidden_file(dir, nd->path.mnt)) {
47180 + error = -ENOENT;
47181 + goto exit;
47182 + }
47183 + if (link && gr_handle_symlink_owner(link, nd->inode)) {
47184 + error = -EACCES;
47185 + goto exit;
47186 + }
47187 audit_inode(pathname, dir);
47188 goto ok;
47189 }
47190 @@ -2285,6 +2364,12 @@ retry_lookup:
47191 /* Negative dentry, just create the file */
47192 if (!dentry->d_inode) {
47193 umode_t mode = op->mode;
47194 +
47195 + if (!gr_acl_handle_creat(path->dentry, nd->path.dentry, path->mnt, open_flag, acc_mode, mode)) {
47196 + error = -EACCES;
47197 + goto exit_mutex_unlock;
47198 + }
47199 +
47200 if (!IS_POSIXACL(dir->d_inode))
47201 mode &= ~current_umask();
47202 /*
47203 @@ -2308,6 +2393,8 @@ retry_lookup:
47204 error = vfs_create(dir->d_inode, dentry, mode, nd);
47205 if (error)
47206 goto exit_mutex_unlock;
47207 + else
47208 + gr_handle_create(path->dentry, path->mnt);
47209 mutex_unlock(&dir->d_inode->i_mutex);
47210 dput(nd->path.dentry);
47211 nd->path.dentry = dentry;
47212 @@ -2317,6 +2404,23 @@ retry_lookup:
47213 /*
47214 * It already exists.
47215 */
47216 +
47217 + if (!gr_acl_handle_hidden_file(dentry, nd->path.mnt)) {
47218 + error = -ENOENT;
47219 + goto exit_mutex_unlock;
47220 + }
47221 + if (link && gr_handle_symlink_owner(link, dentry->d_inode)) {
47222 + error = -EACCES;
47223 + goto exit_mutex_unlock;
47224 + }
47225 +
47226 + /* only check if O_CREAT is specified, all other checks need to go
47227 + into may_open */
47228 + if (gr_handle_fifo(path->dentry, path->mnt, dir, open_flag, acc_mode)) {
47229 + error = -EACCES;
47230 + goto exit_mutex_unlock;
47231 + }
47232 +
47233 mutex_unlock(&dir->d_inode->i_mutex);
47234 audit_inode(pathname, path->dentry);
47235
47236 @@ -2349,6 +2453,11 @@ finish_lookup:
47237 }
47238 }
47239 BUG_ON(inode != path->dentry->d_inode);
47240 + /* if we're resolving a symlink to another symlink */
47241 + if (link && gr_handle_symlink_owner(link, inode)) {
47242 + error = -EACCES;
47243 + goto exit;
47244 + }
47245 return NULL;
47246 }
47247
47248 @@ -2358,7 +2467,6 @@ finish_lookup:
47249 save_parent.dentry = nd->path.dentry;
47250 save_parent.mnt = mntget(path->mnt);
47251 nd->path.dentry = path->dentry;
47252 -
47253 }
47254 nd->inode = inode;
47255 /* Why this, you ask? _Now_ we might have grown LOOKUP_JUMPED... */
47256 @@ -2367,6 +2475,21 @@ finish_lookup:
47257 path_put(&save_parent);
47258 return ERR_PTR(error);
47259 }
47260 +#ifdef CONFIG_GRKERNSEC
47261 + if (nd->flags & LOOKUP_RCU) {
47262 + error = -ECHILD;
47263 + goto exit;
47264 + }
47265 +#endif
47266 + if (!gr_acl_handle_hidden_file(nd->path.dentry, nd->path.mnt)) {
47267 + error = -ENOENT;
47268 + goto exit;
47269 + }
47270 + if (link && gr_handle_symlink_owner(link, nd->inode)) {
47271 + error = -EACCES;
47272 + goto exit;
47273 + }
47274 +
47275 error = -EISDIR;
47276 if ((open_flag & O_CREAT) && S_ISDIR(nd->inode->i_mode))
47277 goto exit;
47278 @@ -2461,7 +2584,7 @@ static struct file *path_openat(int dfd, const char *pathname,
47279 if (unlikely(error))
47280 goto out_filp;
47281
47282 - filp = do_last(nd, &path, op, pathname);
47283 + filp = do_last(nd, &path, NULL, op, pathname);
47284 while (unlikely(!filp)) { /* trailing symlink */
47285 struct path link = path;
47286 void *cookie;
47287 @@ -2476,8 +2599,9 @@ static struct file *path_openat(int dfd, const char *pathname,
47288 error = follow_link(&link, nd, &cookie);
47289 if (unlikely(error))
47290 filp = ERR_PTR(error);
47291 - else
47292 - filp = do_last(nd, &path, op, pathname);
47293 + else {
47294 + filp = do_last(nd, &path, &link, op, pathname);
47295 + }
47296 put_link(nd, &link, cookie);
47297 }
47298 out:
47299 @@ -2577,6 +2701,11 @@ struct dentry *kern_path_create(int dfd, const char *pathname, struct path *path
47300 *path = nd.path;
47301 return dentry;
47302 eexist:
47303 + if (!gr_acl_handle_hidden_file(dentry, nd.path.mnt)) {
47304 + dput(dentry);
47305 + dentry = ERR_PTR(-ENOENT);
47306 + goto fail;
47307 + }
47308 dput(dentry);
47309 dentry = ERR_PTR(-EEXIST);
47310 fail:
47311 @@ -2599,6 +2728,20 @@ struct dentry *user_path_create(int dfd, const char __user *pathname, struct pat
47312 }
47313 EXPORT_SYMBOL(user_path_create);
47314
47315 +static struct dentry *user_path_create_with_name(int dfd, const char __user *pathname, struct path *path, char **to, int is_dir)
47316 +{
47317 + char *tmp = getname(pathname);
47318 + struct dentry *res;
47319 + if (IS_ERR(tmp))
47320 + return ERR_CAST(tmp);
47321 + res = kern_path_create(dfd, tmp, path, is_dir);
47322 + if (IS_ERR(res))
47323 + putname(tmp);
47324 + else
47325 + *to = tmp;
47326 + return res;
47327 +}
47328 +
47329 int vfs_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev)
47330 {
47331 int error = may_create(dir, dentry);
47332 @@ -2665,6 +2808,17 @@ SYSCALL_DEFINE4(mknodat, int, dfd, const char __user *, filename, umode_t, mode,
47333 error = mnt_want_write(path.mnt);
47334 if (error)
47335 goto out_dput;
47336 +
47337 + if (gr_handle_chroot_mknod(dentry, path.mnt, mode)) {
47338 + error = -EPERM;
47339 + goto out_drop_write;
47340 + }
47341 +
47342 + if (!gr_acl_handle_mknod(dentry, path.dentry, path.mnt, mode)) {
47343 + error = -EACCES;
47344 + goto out_drop_write;
47345 + }
47346 +
47347 error = security_path_mknod(&path, dentry, mode, dev);
47348 if (error)
47349 goto out_drop_write;
47350 @@ -2682,6 +2836,9 @@ SYSCALL_DEFINE4(mknodat, int, dfd, const char __user *, filename, umode_t, mode,
47351 }
47352 out_drop_write:
47353 mnt_drop_write(path.mnt);
47354 +
47355 + if (!error)
47356 + gr_handle_create(dentry, path.mnt);
47357 out_dput:
47358 dput(dentry);
47359 mutex_unlock(&path.dentry->d_inode->i_mutex);
47360 @@ -2735,12 +2892,21 @@ SYSCALL_DEFINE3(mkdirat, int, dfd, const char __user *, pathname, umode_t, mode)
47361 error = mnt_want_write(path.mnt);
47362 if (error)
47363 goto out_dput;
47364 +
47365 + if (!gr_acl_handle_mkdir(dentry, path.dentry, path.mnt)) {
47366 + error = -EACCES;
47367 + goto out_drop_write;
47368 + }
47369 +
47370 error = security_path_mkdir(&path, dentry, mode);
47371 if (error)
47372 goto out_drop_write;
47373 error = vfs_mkdir(path.dentry->d_inode, dentry, mode);
47374 out_drop_write:
47375 mnt_drop_write(path.mnt);
47376 +
47377 + if (!error)
47378 + gr_handle_create(dentry, path.mnt);
47379 out_dput:
47380 dput(dentry);
47381 mutex_unlock(&path.dentry->d_inode->i_mutex);
47382 @@ -2820,6 +2986,8 @@ static long do_rmdir(int dfd, const char __user *pathname)
47383 char * name;
47384 struct dentry *dentry;
47385 struct nameidata nd;
47386 + ino_t saved_ino = 0;
47387 + dev_t saved_dev = 0;
47388
47389 error = user_path_parent(dfd, pathname, &nd, &name);
47390 if (error)
47391 @@ -2848,6 +3016,15 @@ static long do_rmdir(int dfd, const char __user *pathname)
47392 error = -ENOENT;
47393 goto exit3;
47394 }
47395 +
47396 + saved_ino = dentry->d_inode->i_ino;
47397 + saved_dev = gr_get_dev_from_dentry(dentry);
47398 +
47399 + if (!gr_acl_handle_rmdir(dentry, nd.path.mnt)) {
47400 + error = -EACCES;
47401 + goto exit3;
47402 + }
47403 +
47404 error = mnt_want_write(nd.path.mnt);
47405 if (error)
47406 goto exit3;
47407 @@ -2855,6 +3032,8 @@ static long do_rmdir(int dfd, const char __user *pathname)
47408 if (error)
47409 goto exit4;
47410 error = vfs_rmdir(nd.path.dentry->d_inode, dentry);
47411 + if (!error && (saved_dev || saved_ino))
47412 + gr_handle_delete(saved_ino, saved_dev);
47413 exit4:
47414 mnt_drop_write(nd.path.mnt);
47415 exit3:
47416 @@ -2917,6 +3096,8 @@ static long do_unlinkat(int dfd, const char __user *pathname)
47417 struct dentry *dentry;
47418 struct nameidata nd;
47419 struct inode *inode = NULL;
47420 + ino_t saved_ino = 0;
47421 + dev_t saved_dev = 0;
47422
47423 error = user_path_parent(dfd, pathname, &nd, &name);
47424 if (error)
47425 @@ -2939,6 +3120,16 @@ static long do_unlinkat(int dfd, const char __user *pathname)
47426 if (!inode)
47427 goto slashes;
47428 ihold(inode);
47429 +
47430 + if (inode->i_nlink <= 1) {
47431 + saved_ino = inode->i_ino;
47432 + saved_dev = gr_get_dev_from_dentry(dentry);
47433 + }
47434 + if (!gr_acl_handle_unlink(dentry, nd.path.mnt)) {
47435 + error = -EACCES;
47436 + goto exit2;
47437 + }
47438 +
47439 error = mnt_want_write(nd.path.mnt);
47440 if (error)
47441 goto exit2;
47442 @@ -2946,6 +3137,8 @@ static long do_unlinkat(int dfd, const char __user *pathname)
47443 if (error)
47444 goto exit3;
47445 error = vfs_unlink(nd.path.dentry->d_inode, dentry);
47446 + if (!error && (saved_ino || saved_dev))
47447 + gr_handle_delete(saved_ino, saved_dev);
47448 exit3:
47449 mnt_drop_write(nd.path.mnt);
47450 exit2:
47451 @@ -3021,10 +3214,18 @@ SYSCALL_DEFINE3(symlinkat, const char __user *, oldname,
47452 error = mnt_want_write(path.mnt);
47453 if (error)
47454 goto out_dput;
47455 +
47456 + if (!gr_acl_handle_symlink(dentry, path.dentry, path.mnt, from)) {
47457 + error = -EACCES;
47458 + goto out_drop_write;
47459 + }
47460 +
47461 error = security_path_symlink(&path, dentry, from);
47462 if (error)
47463 goto out_drop_write;
47464 error = vfs_symlink(path.dentry->d_inode, dentry, from);
47465 + if (!error)
47466 + gr_handle_create(dentry, path.mnt);
47467 out_drop_write:
47468 mnt_drop_write(path.mnt);
47469 out_dput:
47470 @@ -3099,6 +3300,7 @@ SYSCALL_DEFINE5(linkat, int, olddfd, const char __user *, oldname,
47471 {
47472 struct dentry *new_dentry;
47473 struct path old_path, new_path;
47474 + char *to = NULL;
47475 int how = 0;
47476 int error;
47477
47478 @@ -3122,7 +3324,7 @@ SYSCALL_DEFINE5(linkat, int, olddfd, const char __user *, oldname,
47479 if (error)
47480 return error;
47481
47482 - new_dentry = user_path_create(newdfd, newname, &new_path, 0);
47483 + new_dentry = user_path_create_with_name(newdfd, newname, &new_path, &to, 0);
47484 error = PTR_ERR(new_dentry);
47485 if (IS_ERR(new_dentry))
47486 goto out;
47487 @@ -3133,13 +3335,30 @@ SYSCALL_DEFINE5(linkat, int, olddfd, const char __user *, oldname,
47488 error = mnt_want_write(new_path.mnt);
47489 if (error)
47490 goto out_dput;
47491 +
47492 + if (gr_handle_hardlink(old_path.dentry, old_path.mnt,
47493 + old_path.dentry->d_inode,
47494 + old_path.dentry->d_inode->i_mode, to)) {
47495 + error = -EACCES;
47496 + goto out_drop_write;
47497 + }
47498 +
47499 + if (!gr_acl_handle_link(new_dentry, new_path.dentry, new_path.mnt,
47500 + old_path.dentry, old_path.mnt, to)) {
47501 + error = -EACCES;
47502 + goto out_drop_write;
47503 + }
47504 +
47505 error = security_path_link(old_path.dentry, &new_path, new_dentry);
47506 if (error)
47507 goto out_drop_write;
47508 error = vfs_link(old_path.dentry, new_path.dentry->d_inode, new_dentry);
47509 + if (!error)
47510 + gr_handle_create(new_dentry, new_path.mnt);
47511 out_drop_write:
47512 mnt_drop_write(new_path.mnt);
47513 out_dput:
47514 + putname(to);
47515 dput(new_dentry);
47516 mutex_unlock(&new_path.dentry->d_inode->i_mutex);
47517 path_put(&new_path);
47518 @@ -3373,6 +3592,12 @@ SYSCALL_DEFINE4(renameat, int, olddfd, const char __user *, oldname,
47519 if (new_dentry == trap)
47520 goto exit5;
47521
47522 + error = gr_acl_handle_rename(new_dentry, new_dir, newnd.path.mnt,
47523 + old_dentry, old_dir->d_inode, oldnd.path.mnt,
47524 + to);
47525 + if (error)
47526 + goto exit5;
47527 +
47528 error = mnt_want_write(oldnd.path.mnt);
47529 if (error)
47530 goto exit5;
47531 @@ -3382,6 +3607,9 @@ SYSCALL_DEFINE4(renameat, int, olddfd, const char __user *, oldname,
47532 goto exit6;
47533 error = vfs_rename(old_dir->d_inode, old_dentry,
47534 new_dir->d_inode, new_dentry);
47535 + if (!error)
47536 + gr_handle_rename(old_dir->d_inode, new_dir->d_inode, old_dentry,
47537 + new_dentry, oldnd.path.mnt, new_dentry->d_inode ? 1 : 0);
47538 exit6:
47539 mnt_drop_write(oldnd.path.mnt);
47540 exit5:
47541 @@ -3407,6 +3635,8 @@ SYSCALL_DEFINE2(rename, const char __user *, oldname, const char __user *, newna
47542
47543 int vfs_readlink(struct dentry *dentry, char __user *buffer, int buflen, const char *link)
47544 {
47545 + char tmpbuf[64];
47546 + const char *newlink;
47547 int len;
47548
47549 len = PTR_ERR(link);
47550 @@ -3416,7 +3646,14 @@ int vfs_readlink(struct dentry *dentry, char __user *buffer, int buflen, const c
47551 len = strlen(link);
47552 if (len > (unsigned) buflen)
47553 len = buflen;
47554 - if (copy_to_user(buffer, link, len))
47555 +
47556 + if (len < sizeof(tmpbuf)) {
47557 + memcpy(tmpbuf, link, len);
47558 + newlink = tmpbuf;
47559 + } else
47560 + newlink = link;
47561 +
47562 + if (copy_to_user(buffer, newlink, len))
47563 len = -EFAULT;
47564 out:
47565 return len;
47566 diff --git a/fs/namespace.c b/fs/namespace.c
47567 index 1e4a5fe..a5ce747 100644
47568 --- a/fs/namespace.c
47569 +++ b/fs/namespace.c
47570 @@ -1157,6 +1157,9 @@ static int do_umount(struct mount *mnt, int flags)
47571 if (!(sb->s_flags & MS_RDONLY))
47572 retval = do_remount_sb(sb, MS_RDONLY, NULL, 0);
47573 up_write(&sb->s_umount);
47574 +
47575 + gr_log_remount(mnt->mnt_devname, retval);
47576 +
47577 return retval;
47578 }
47579
47580 @@ -1176,6 +1179,9 @@ static int do_umount(struct mount *mnt, int flags)
47581 br_write_unlock(&vfsmount_lock);
47582 up_write(&namespace_sem);
47583 release_mounts(&umount_list);
47584 +
47585 + gr_log_unmount(mnt->mnt_devname, retval);
47586 +
47587 return retval;
47588 }
47589
47590 @@ -2177,6 +2183,16 @@ long do_mount(char *dev_name, char *dir_name, char *type_page,
47591 MS_NOATIME | MS_NODIRATIME | MS_RELATIME| MS_KERNMOUNT |
47592 MS_STRICTATIME);
47593
47594 + if (gr_handle_rofs_mount(path.dentry, path.mnt, mnt_flags)) {
47595 + retval = -EPERM;
47596 + goto dput_out;
47597 + }
47598 +
47599 + if (gr_handle_chroot_mount(path.dentry, path.mnt, dev_name)) {
47600 + retval = -EPERM;
47601 + goto dput_out;
47602 + }
47603 +
47604 if (flags & MS_REMOUNT)
47605 retval = do_remount(&path, flags & ~MS_REMOUNT, mnt_flags,
47606 data_page);
47607 @@ -2191,6 +2207,9 @@ long do_mount(char *dev_name, char *dir_name, char *type_page,
47608 dev_name, data_page);
47609 dput_out:
47610 path_put(&path);
47611 +
47612 + gr_log_mount(dev_name, dir_name, retval);
47613 +
47614 return retval;
47615 }
47616
47617 @@ -2472,6 +2491,11 @@ SYSCALL_DEFINE2(pivot_root, const char __user *, new_root,
47618 if (error)
47619 goto out2;
47620
47621 + if (gr_handle_chroot_pivot()) {
47622 + error = -EPERM;
47623 + goto out2;
47624 + }
47625 +
47626 get_fs_root(current->fs, &root);
47627 error = lock_mount(&old);
47628 if (error)
47629 diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
47630 index f729698..2bac081 100644
47631 --- a/fs/nfs/inode.c
47632 +++ b/fs/nfs/inode.c
47633 @@ -152,7 +152,7 @@ static void nfs_zap_caches_locked(struct inode *inode)
47634 nfsi->attrtimeo = NFS_MINATTRTIMEO(inode);
47635 nfsi->attrtimeo_timestamp = jiffies;
47636
47637 - memset(NFS_COOKIEVERF(inode), 0, sizeof(NFS_COOKIEVERF(inode)));
47638 + memset(NFS_COOKIEVERF(inode), 0, sizeof(NFS_I(inode)->cookieverf));
47639 if (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode))
47640 nfsi->cache_validity |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_DATA|NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL|NFS_INO_REVAL_PAGECACHE;
47641 else
47642 @@ -1008,16 +1008,16 @@ static int nfs_size_need_update(const struct inode *inode, const struct nfs_fatt
47643 return nfs_size_to_loff_t(fattr->size) > i_size_read(inode);
47644 }
47645
47646 -static atomic_long_t nfs_attr_generation_counter;
47647 +static atomic_long_unchecked_t nfs_attr_generation_counter;
47648
47649 static unsigned long nfs_read_attr_generation_counter(void)
47650 {
47651 - return atomic_long_read(&nfs_attr_generation_counter);
47652 + return atomic_long_read_unchecked(&nfs_attr_generation_counter);
47653 }
47654
47655 unsigned long nfs_inc_attr_generation_counter(void)
47656 {
47657 - return atomic_long_inc_return(&nfs_attr_generation_counter);
47658 + return atomic_long_inc_return_unchecked(&nfs_attr_generation_counter);
47659 }
47660
47661 void nfs_fattr_init(struct nfs_fattr *fattr)
47662 diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
47663 index c8bd9c3..4f83416 100644
47664 --- a/fs/nfsd/vfs.c
47665 +++ b/fs/nfsd/vfs.c
47666 @@ -933,7 +933,7 @@ nfsd_vfs_read(struct svc_rqst *rqstp, struct svc_fh *fhp, struct file *file,
47667 } else {
47668 oldfs = get_fs();
47669 set_fs(KERNEL_DS);
47670 - host_err = vfs_readv(file, (struct iovec __user *)vec, vlen, &offset);
47671 + host_err = vfs_readv(file, (struct iovec __force_user *)vec, vlen, &offset);
47672 set_fs(oldfs);
47673 }
47674
47675 @@ -1037,7 +1037,7 @@ nfsd_vfs_write(struct svc_rqst *rqstp, struct svc_fh *fhp, struct file *file,
47676
47677 /* Write the data. */
47678 oldfs = get_fs(); set_fs(KERNEL_DS);
47679 - host_err = vfs_writev(file, (struct iovec __user *)vec, vlen, &offset);
47680 + host_err = vfs_writev(file, (struct iovec __force_user *)vec, vlen, &offset);
47681 set_fs(oldfs);
47682 if (host_err < 0)
47683 goto out_nfserr;
47684 @@ -1573,7 +1573,7 @@ nfsd_readlink(struct svc_rqst *rqstp, struct svc_fh *fhp, char *buf, int *lenp)
47685 */
47686
47687 oldfs = get_fs(); set_fs(KERNEL_DS);
47688 - host_err = inode->i_op->readlink(path.dentry, buf, *lenp);
47689 + host_err = inode->i_op->readlink(path.dentry, (char __force_user *)buf, *lenp);
47690 set_fs(oldfs);
47691
47692 if (host_err < 0)
47693 diff --git a/fs/notify/fanotify/fanotify_user.c b/fs/notify/fanotify/fanotify_user.c
47694 index 3568c8a..e0240d8 100644
47695 --- a/fs/notify/fanotify/fanotify_user.c
47696 +++ b/fs/notify/fanotify/fanotify_user.c
47697 @@ -278,7 +278,8 @@ static ssize_t copy_event_to_user(struct fsnotify_group *group,
47698 goto out_close_fd;
47699
47700 ret = -EFAULT;
47701 - if (copy_to_user(buf, &fanotify_event_metadata,
47702 + if (fanotify_event_metadata.event_len > sizeof fanotify_event_metadata ||
47703 + copy_to_user(buf, &fanotify_event_metadata,
47704 fanotify_event_metadata.event_len))
47705 goto out_kill_access_response;
47706
47707 diff --git a/fs/notify/notification.c b/fs/notify/notification.c
47708 index c887b13..0fdf472 100644
47709 --- a/fs/notify/notification.c
47710 +++ b/fs/notify/notification.c
47711 @@ -57,7 +57,7 @@ static struct kmem_cache *fsnotify_event_holder_cachep;
47712 * get set to 0 so it will never get 'freed'
47713 */
47714 static struct fsnotify_event *q_overflow_event;
47715 -static atomic_t fsnotify_sync_cookie = ATOMIC_INIT(0);
47716 +static atomic_unchecked_t fsnotify_sync_cookie = ATOMIC_INIT(0);
47717
47718 /**
47719 * fsnotify_get_cookie - return a unique cookie for use in synchronizing events.
47720 @@ -65,7 +65,7 @@ static atomic_t fsnotify_sync_cookie = ATOMIC_INIT(0);
47721 */
47722 u32 fsnotify_get_cookie(void)
47723 {
47724 - return atomic_inc_return(&fsnotify_sync_cookie);
47725 + return atomic_inc_return_unchecked(&fsnotify_sync_cookie);
47726 }
47727 EXPORT_SYMBOL_GPL(fsnotify_get_cookie);
47728
47729 diff --git a/fs/ntfs/dir.c b/fs/ntfs/dir.c
47730 index 99e3610..02c1068 100644
47731 --- a/fs/ntfs/dir.c
47732 +++ b/fs/ntfs/dir.c
47733 @@ -1329,7 +1329,7 @@ find_next_index_buffer:
47734 ia = (INDEX_ALLOCATION*)(kaddr + (ia_pos & ~PAGE_CACHE_MASK &
47735 ~(s64)(ndir->itype.index.block_size - 1)));
47736 /* Bounds checks. */
47737 - if (unlikely((u8*)ia < kaddr || (u8*)ia > kaddr + PAGE_CACHE_SIZE)) {
47738 + if (unlikely(!kaddr || (u8*)ia < kaddr || (u8*)ia > kaddr + PAGE_CACHE_SIZE)) {
47739 ntfs_error(sb, "Out of bounds check failed. Corrupt directory "
47740 "inode 0x%lx or driver bug.", vdir->i_ino);
47741 goto err_out;
47742 diff --git a/fs/ntfs/file.c b/fs/ntfs/file.c
47743 index 7389d2d..dfd5dbe 100644
47744 --- a/fs/ntfs/file.c
47745 +++ b/fs/ntfs/file.c
47746 @@ -2231,6 +2231,6 @@ const struct inode_operations ntfs_file_inode_ops = {
47747 #endif /* NTFS_RW */
47748 };
47749
47750 -const struct file_operations ntfs_empty_file_ops = {};
47751 +const struct file_operations ntfs_empty_file_ops __read_only;
47752
47753 -const struct inode_operations ntfs_empty_inode_ops = {};
47754 +const struct inode_operations ntfs_empty_inode_ops __read_only;
47755 diff --git a/fs/ocfs2/localalloc.c b/fs/ocfs2/localalloc.c
47756 index 210c352..a174f83 100644
47757 --- a/fs/ocfs2/localalloc.c
47758 +++ b/fs/ocfs2/localalloc.c
47759 @@ -1283,7 +1283,7 @@ static int ocfs2_local_alloc_slide_window(struct ocfs2_super *osb,
47760 goto bail;
47761 }
47762
47763 - atomic_inc(&osb->alloc_stats.moves);
47764 + atomic_inc_unchecked(&osb->alloc_stats.moves);
47765
47766 bail:
47767 if (handle)
47768 diff --git a/fs/ocfs2/ocfs2.h b/fs/ocfs2/ocfs2.h
47769 index d355e6e..578d905 100644
47770 --- a/fs/ocfs2/ocfs2.h
47771 +++ b/fs/ocfs2/ocfs2.h
47772 @@ -235,11 +235,11 @@ enum ocfs2_vol_state
47773
47774 struct ocfs2_alloc_stats
47775 {
47776 - atomic_t moves;
47777 - atomic_t local_data;
47778 - atomic_t bitmap_data;
47779 - atomic_t bg_allocs;
47780 - atomic_t bg_extends;
47781 + atomic_unchecked_t moves;
47782 + atomic_unchecked_t local_data;
47783 + atomic_unchecked_t bitmap_data;
47784 + atomic_unchecked_t bg_allocs;
47785 + atomic_unchecked_t bg_extends;
47786 };
47787
47788 enum ocfs2_local_alloc_state
47789 diff --git a/fs/ocfs2/suballoc.c b/fs/ocfs2/suballoc.c
47790 index f169da4..9112253 100644
47791 --- a/fs/ocfs2/suballoc.c
47792 +++ b/fs/ocfs2/suballoc.c
47793 @@ -872,7 +872,7 @@ static int ocfs2_reserve_suballoc_bits(struct ocfs2_super *osb,
47794 mlog_errno(status);
47795 goto bail;
47796 }
47797 - atomic_inc(&osb->alloc_stats.bg_extends);
47798 + atomic_inc_unchecked(&osb->alloc_stats.bg_extends);
47799
47800 /* You should never ask for this much metadata */
47801 BUG_ON(bits_wanted >
47802 @@ -2008,7 +2008,7 @@ int ocfs2_claim_metadata(handle_t *handle,
47803 mlog_errno(status);
47804 goto bail;
47805 }
47806 - atomic_inc(&OCFS2_SB(ac->ac_inode->i_sb)->alloc_stats.bg_allocs);
47807 + atomic_inc_unchecked(&OCFS2_SB(ac->ac_inode->i_sb)->alloc_stats.bg_allocs);
47808
47809 *suballoc_loc = res.sr_bg_blkno;
47810 *suballoc_bit_start = res.sr_bit_offset;
47811 @@ -2172,7 +2172,7 @@ int ocfs2_claim_new_inode_at_loc(handle_t *handle,
47812 trace_ocfs2_claim_new_inode_at_loc((unsigned long long)di_blkno,
47813 res->sr_bits);
47814
47815 - atomic_inc(&OCFS2_SB(ac->ac_inode->i_sb)->alloc_stats.bg_allocs);
47816 + atomic_inc_unchecked(&OCFS2_SB(ac->ac_inode->i_sb)->alloc_stats.bg_allocs);
47817
47818 BUG_ON(res->sr_bits != 1);
47819
47820 @@ -2214,7 +2214,7 @@ int ocfs2_claim_new_inode(handle_t *handle,
47821 mlog_errno(status);
47822 goto bail;
47823 }
47824 - atomic_inc(&OCFS2_SB(ac->ac_inode->i_sb)->alloc_stats.bg_allocs);
47825 + atomic_inc_unchecked(&OCFS2_SB(ac->ac_inode->i_sb)->alloc_stats.bg_allocs);
47826
47827 BUG_ON(res.sr_bits != 1);
47828
47829 @@ -2318,7 +2318,7 @@ int __ocfs2_claim_clusters(handle_t *handle,
47830 cluster_start,
47831 num_clusters);
47832 if (!status)
47833 - atomic_inc(&osb->alloc_stats.local_data);
47834 + atomic_inc_unchecked(&osb->alloc_stats.local_data);
47835 } else {
47836 if (min_clusters > (osb->bitmap_cpg - 1)) {
47837 /* The only paths asking for contiguousness
47838 @@ -2344,7 +2344,7 @@ int __ocfs2_claim_clusters(handle_t *handle,
47839 ocfs2_desc_bitmap_to_cluster_off(ac->ac_inode,
47840 res.sr_bg_blkno,
47841 res.sr_bit_offset);
47842 - atomic_inc(&osb->alloc_stats.bitmap_data);
47843 + atomic_inc_unchecked(&osb->alloc_stats.bitmap_data);
47844 *num_clusters = res.sr_bits;
47845 }
47846 }
47847 diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c
47848 index 68f4541..89cfe6a 100644
47849 --- a/fs/ocfs2/super.c
47850 +++ b/fs/ocfs2/super.c
47851 @@ -301,11 +301,11 @@ static int ocfs2_osb_dump(struct ocfs2_super *osb, char *buf, int len)
47852 "%10s => GlobalAllocs: %d LocalAllocs: %d "
47853 "SubAllocs: %d LAWinMoves: %d SAExtends: %d\n",
47854 "Stats",
47855 - atomic_read(&osb->alloc_stats.bitmap_data),
47856 - atomic_read(&osb->alloc_stats.local_data),
47857 - atomic_read(&osb->alloc_stats.bg_allocs),
47858 - atomic_read(&osb->alloc_stats.moves),
47859 - atomic_read(&osb->alloc_stats.bg_extends));
47860 + atomic_read_unchecked(&osb->alloc_stats.bitmap_data),
47861 + atomic_read_unchecked(&osb->alloc_stats.local_data),
47862 + atomic_read_unchecked(&osb->alloc_stats.bg_allocs),
47863 + atomic_read_unchecked(&osb->alloc_stats.moves),
47864 + atomic_read_unchecked(&osb->alloc_stats.bg_extends));
47865
47866 out += snprintf(buf + out, len - out,
47867 "%10s => State: %u Descriptor: %llu Size: %u bits "
47868 @@ -2116,11 +2116,11 @@ static int ocfs2_initialize_super(struct super_block *sb,
47869 spin_lock_init(&osb->osb_xattr_lock);
47870 ocfs2_init_steal_slots(osb);
47871
47872 - atomic_set(&osb->alloc_stats.moves, 0);
47873 - atomic_set(&osb->alloc_stats.local_data, 0);
47874 - atomic_set(&osb->alloc_stats.bitmap_data, 0);
47875 - atomic_set(&osb->alloc_stats.bg_allocs, 0);
47876 - atomic_set(&osb->alloc_stats.bg_extends, 0);
47877 + atomic_set_unchecked(&osb->alloc_stats.moves, 0);
47878 + atomic_set_unchecked(&osb->alloc_stats.local_data, 0);
47879 + atomic_set_unchecked(&osb->alloc_stats.bitmap_data, 0);
47880 + atomic_set_unchecked(&osb->alloc_stats.bg_allocs, 0);
47881 + atomic_set_unchecked(&osb->alloc_stats.bg_extends, 0);
47882
47883 /* Copy the blockcheck stats from the superblock probe */
47884 osb->osb_ecc_stats = *stats;
47885 diff --git a/fs/open.c b/fs/open.c
47886 index 1540632..79d7242 100644
47887 --- a/fs/open.c
47888 +++ b/fs/open.c
47889 @@ -31,6 +31,8 @@
47890 #include <linux/ima.h>
47891 #include <linux/dnotify.h>
47892
47893 +#define CREATE_TRACE_POINTS
47894 +#include <trace/events/fs.h>
47895 #include "internal.h"
47896
47897 int do_truncate(struct dentry *dentry, loff_t length, unsigned int time_attrs,
47898 @@ -112,6 +114,10 @@ static long do_sys_truncate(const char __user *pathname, loff_t length)
47899 error = locks_verify_truncate(inode, NULL, length);
47900 if (!error)
47901 error = security_path_truncate(&path);
47902 +
47903 + if (!error && !gr_acl_handle_truncate(path.dentry, path.mnt))
47904 + error = -EACCES;
47905 +
47906 if (!error)
47907 error = do_truncate(path.dentry, length, 0, NULL);
47908
47909 @@ -359,6 +365,9 @@ SYSCALL_DEFINE3(faccessat, int, dfd, const char __user *, filename, int, mode)
47910 if (__mnt_is_readonly(path.mnt))
47911 res = -EROFS;
47912
47913 + if (!res && !gr_acl_handle_access(path.dentry, path.mnt, mode))
47914 + res = -EACCES;
47915 +
47916 out_path_release:
47917 path_put(&path);
47918 out:
47919 @@ -385,6 +394,8 @@ SYSCALL_DEFINE1(chdir, const char __user *, filename)
47920 if (error)
47921 goto dput_and_out;
47922
47923 + gr_log_chdir(path.dentry, path.mnt);
47924 +
47925 set_fs_pwd(current->fs, &path);
47926
47927 dput_and_out:
47928 @@ -411,6 +422,13 @@ SYSCALL_DEFINE1(fchdir, unsigned int, fd)
47929 goto out_putf;
47930
47931 error = inode_permission(inode, MAY_EXEC | MAY_CHDIR);
47932 +
47933 + if (!error && !gr_chroot_fchdir(file->f_path.dentry, file->f_path.mnt))
47934 + error = -EPERM;
47935 +
47936 + if (!error)
47937 + gr_log_chdir(file->f_path.dentry, file->f_path.mnt);
47938 +
47939 if (!error)
47940 set_fs_pwd(current->fs, &file->f_path);
47941 out_putf:
47942 @@ -439,7 +457,13 @@ SYSCALL_DEFINE1(chroot, const char __user *, filename)
47943 if (error)
47944 goto dput_and_out;
47945
47946 + if (gr_handle_chroot_chroot(path.dentry, path.mnt))
47947 + goto dput_and_out;
47948 +
47949 set_fs_root(current->fs, &path);
47950 +
47951 + gr_handle_chroot_chdir(&path);
47952 +
47953 error = 0;
47954 dput_and_out:
47955 path_put(&path);
47956 @@ -457,6 +481,16 @@ static int chmod_common(struct path *path, umode_t mode)
47957 if (error)
47958 return error;
47959 mutex_lock(&inode->i_mutex);
47960 +
47961 + if (!gr_acl_handle_chmod(path->dentry, path->mnt, &mode)) {
47962 + error = -EACCES;
47963 + goto out_unlock;
47964 + }
47965 + if (gr_handle_chroot_chmod(path->dentry, path->mnt, mode)) {
47966 + error = -EACCES;
47967 + goto out_unlock;
47968 + }
47969 +
47970 error = security_path_chmod(path, mode);
47971 if (error)
47972 goto out_unlock;
47973 @@ -512,6 +546,9 @@ static int chown_common(struct path *path, uid_t user, gid_t group)
47974 uid = make_kuid(current_user_ns(), user);
47975 gid = make_kgid(current_user_ns(), group);
47976
47977 + if (!gr_acl_handle_chown(path->dentry, path->mnt))
47978 + return -EACCES;
47979 +
47980 newattrs.ia_valid = ATTR_CTIME;
47981 if (user != (uid_t) -1) {
47982 if (!uid_valid(uid))
47983 @@ -1035,6 +1072,7 @@ long do_sys_open(int dfd, const char __user *filename, int flags, umode_t mode)
47984 } else {
47985 fsnotify_open(f);
47986 fd_install(fd, f);
47987 + trace_do_sys_open(tmp, flags, mode);
47988 }
47989 }
47990 putname(tmp);
47991 diff --git a/fs/pipe.c b/fs/pipe.c
47992 index 49c1065..13b9e12 100644
47993 --- a/fs/pipe.c
47994 +++ b/fs/pipe.c
47995 @@ -438,9 +438,9 @@ redo:
47996 }
47997 if (bufs) /* More to do? */
47998 continue;
47999 - if (!pipe->writers)
48000 + if (!atomic_read(&pipe->writers))
48001 break;
48002 - if (!pipe->waiting_writers) {
48003 + if (!atomic_read(&pipe->waiting_writers)) {
48004 /* syscall merging: Usually we must not sleep
48005 * if O_NONBLOCK is set, or if we got some data.
48006 * But if a writer sleeps in kernel space, then
48007 @@ -504,7 +504,7 @@ pipe_write(struct kiocb *iocb, const struct iovec *_iov,
48008 mutex_lock(&inode->i_mutex);
48009 pipe = inode->i_pipe;
48010
48011 - if (!pipe->readers) {
48012 + if (!atomic_read(&pipe->readers)) {
48013 send_sig(SIGPIPE, current, 0);
48014 ret = -EPIPE;
48015 goto out;
48016 @@ -553,7 +553,7 @@ redo1:
48017 for (;;) {
48018 int bufs;
48019
48020 - if (!pipe->readers) {
48021 + if (!atomic_read(&pipe->readers)) {
48022 send_sig(SIGPIPE, current, 0);
48023 if (!ret)
48024 ret = -EPIPE;
48025 @@ -644,9 +644,9 @@ redo2:
48026 kill_fasync(&pipe->fasync_readers, SIGIO, POLL_IN);
48027 do_wakeup = 0;
48028 }
48029 - pipe->waiting_writers++;
48030 + atomic_inc(&pipe->waiting_writers);
48031 pipe_wait(pipe);
48032 - pipe->waiting_writers--;
48033 + atomic_dec(&pipe->waiting_writers);
48034 }
48035 out:
48036 mutex_unlock(&inode->i_mutex);
48037 @@ -716,7 +716,7 @@ pipe_poll(struct file *filp, poll_table *wait)
48038 mask = 0;
48039 if (filp->f_mode & FMODE_READ) {
48040 mask = (nrbufs > 0) ? POLLIN | POLLRDNORM : 0;
48041 - if (!pipe->writers && filp->f_version != pipe->w_counter)
48042 + if (!atomic_read(&pipe->writers) && filp->f_version != pipe->w_counter)
48043 mask |= POLLHUP;
48044 }
48045
48046 @@ -726,7 +726,7 @@ pipe_poll(struct file *filp, poll_table *wait)
48047 * Most Unices do not set POLLERR for FIFOs but on Linux they
48048 * behave exactly like pipes for poll().
48049 */
48050 - if (!pipe->readers)
48051 + if (!atomic_read(&pipe->readers))
48052 mask |= POLLERR;
48053 }
48054
48055 @@ -740,10 +740,10 @@ pipe_release(struct inode *inode, int decr, int decw)
48056
48057 mutex_lock(&inode->i_mutex);
48058 pipe = inode->i_pipe;
48059 - pipe->readers -= decr;
48060 - pipe->writers -= decw;
48061 + atomic_sub(decr, &pipe->readers);
48062 + atomic_sub(decw, &pipe->writers);
48063
48064 - if (!pipe->readers && !pipe->writers) {
48065 + if (!atomic_read(&pipe->readers) && !atomic_read(&pipe->writers)) {
48066 free_pipe_info(inode);
48067 } else {
48068 wake_up_interruptible_sync_poll(&pipe->wait, POLLIN | POLLOUT | POLLRDNORM | POLLWRNORM | POLLERR | POLLHUP);
48069 @@ -833,7 +833,7 @@ pipe_read_open(struct inode *inode, struct file *filp)
48070
48071 if (inode->i_pipe) {
48072 ret = 0;
48073 - inode->i_pipe->readers++;
48074 + atomic_inc(&inode->i_pipe->readers);
48075 }
48076
48077 mutex_unlock(&inode->i_mutex);
48078 @@ -850,7 +850,7 @@ pipe_write_open(struct inode *inode, struct file *filp)
48079
48080 if (inode->i_pipe) {
48081 ret = 0;
48082 - inode->i_pipe->writers++;
48083 + atomic_inc(&inode->i_pipe->writers);
48084 }
48085
48086 mutex_unlock(&inode->i_mutex);
48087 @@ -868,9 +868,9 @@ pipe_rdwr_open(struct inode *inode, struct file *filp)
48088 if (inode->i_pipe) {
48089 ret = 0;
48090 if (filp->f_mode & FMODE_READ)
48091 - inode->i_pipe->readers++;
48092 + atomic_inc(&inode->i_pipe->readers);
48093 if (filp->f_mode & FMODE_WRITE)
48094 - inode->i_pipe->writers++;
48095 + atomic_inc(&inode->i_pipe->writers);
48096 }
48097
48098 mutex_unlock(&inode->i_mutex);
48099 @@ -962,7 +962,7 @@ void free_pipe_info(struct inode *inode)
48100 inode->i_pipe = NULL;
48101 }
48102
48103 -static struct vfsmount *pipe_mnt __read_mostly;
48104 +struct vfsmount *pipe_mnt __read_mostly;
48105
48106 /*
48107 * pipefs_dname() is called from d_path().
48108 @@ -992,7 +992,8 @@ static struct inode * get_pipe_inode(void)
48109 goto fail_iput;
48110 inode->i_pipe = pipe;
48111
48112 - pipe->readers = pipe->writers = 1;
48113 + atomic_set(&pipe->readers, 1);
48114 + atomic_set(&pipe->writers, 1);
48115 inode->i_fop = &rdwr_pipefifo_fops;
48116
48117 /*
48118 diff --git a/fs/proc/Kconfig b/fs/proc/Kconfig
48119 index 15af622..0e9f4467 100644
48120 --- a/fs/proc/Kconfig
48121 +++ b/fs/proc/Kconfig
48122 @@ -30,12 +30,12 @@ config PROC_FS
48123
48124 config PROC_KCORE
48125 bool "/proc/kcore support" if !ARM
48126 - depends on PROC_FS && MMU
48127 + depends on PROC_FS && MMU && !GRKERNSEC_PROC_ADD
48128
48129 config PROC_VMCORE
48130 bool "/proc/vmcore support"
48131 - depends on PROC_FS && CRASH_DUMP
48132 - default y
48133 + depends on PROC_FS && CRASH_DUMP && !GRKERNSEC
48134 + default n
48135 help
48136 Exports the dump image of crashed kernel in ELF format.
48137
48138 @@ -59,8 +59,8 @@ config PROC_SYSCTL
48139 limited in memory.
48140
48141 config PROC_PAGE_MONITOR
48142 - default y
48143 - depends on PROC_FS && MMU
48144 + default n
48145 + depends on PROC_FS && MMU && !GRKERNSEC
48146 bool "Enable /proc page monitoring" if EXPERT
48147 help
48148 Various /proc files exist to monitor process memory utilization:
48149 diff --git a/fs/proc/array.c b/fs/proc/array.c
48150 index c1c207c..5179411 100644
48151 --- a/fs/proc/array.c
48152 +++ b/fs/proc/array.c
48153 @@ -60,6 +60,7 @@
48154 #include <linux/tty.h>
48155 #include <linux/string.h>
48156 #include <linux/mman.h>
48157 +#include <linux/grsecurity.h>
48158 #include <linux/proc_fs.h>
48159 #include <linux/ioport.h>
48160 #include <linux/uaccess.h>
48161 @@ -346,6 +347,21 @@ static void task_cpus_allowed(struct seq_file *m, struct task_struct *task)
48162 seq_putc(m, '\n');
48163 }
48164
48165 +#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)
48166 +static inline void task_pax(struct seq_file *m, struct task_struct *p)
48167 +{
48168 + if (p->mm)
48169 + seq_printf(m, "PaX:\t%c%c%c%c%c\n",
48170 + p->mm->pax_flags & MF_PAX_PAGEEXEC ? 'P' : 'p',
48171 + p->mm->pax_flags & MF_PAX_EMUTRAMP ? 'E' : 'e',
48172 + p->mm->pax_flags & MF_PAX_MPROTECT ? 'M' : 'm',
48173 + p->mm->pax_flags & MF_PAX_RANDMMAP ? 'R' : 'r',
48174 + p->mm->pax_flags & MF_PAX_SEGMEXEC ? 'S' : 's');
48175 + else
48176 + seq_printf(m, "PaX:\t-----\n");
48177 +}
48178 +#endif
48179 +
48180 int proc_pid_status(struct seq_file *m, struct pid_namespace *ns,
48181 struct pid *pid, struct task_struct *task)
48182 {
48183 @@ -363,9 +379,24 @@ int proc_pid_status(struct seq_file *m, struct pid_namespace *ns,
48184 task_cpus_allowed(m, task);
48185 cpuset_task_status_allowed(m, task);
48186 task_context_switch_counts(m, task);
48187 +
48188 +#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)
48189 + task_pax(m, task);
48190 +#endif
48191 +
48192 +#if defined(CONFIG_GRKERNSEC) && !defined(CONFIG_GRKERNSEC_NO_RBAC)
48193 + task_grsec_rbac(m, task);
48194 +#endif
48195 +
48196 return 0;
48197 }
48198
48199 +#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
48200 +#define PAX_RAND_FLAGS(_mm) (_mm != NULL && _mm != current->mm && \
48201 + (_mm->pax_flags & MF_PAX_RANDMMAP || \
48202 + _mm->pax_flags & MF_PAX_SEGMEXEC))
48203 +#endif
48204 +
48205 static int do_task_stat(struct seq_file *m, struct pid_namespace *ns,
48206 struct pid *pid, struct task_struct *task, int whole)
48207 {
48208 @@ -387,6 +418,13 @@ static int do_task_stat(struct seq_file *m, struct pid_namespace *ns,
48209 char tcomm[sizeof(task->comm)];
48210 unsigned long flags;
48211
48212 +#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
48213 + if (current->exec_id != m->exec_id) {
48214 + gr_log_badprocpid("stat");
48215 + return 0;
48216 + }
48217 +#endif
48218 +
48219 state = *get_task_state(task);
48220 vsize = eip = esp = 0;
48221 permitted = ptrace_may_access(task, PTRACE_MODE_READ | PTRACE_MODE_NOAUDIT);
48222 @@ -458,6 +496,19 @@ static int do_task_stat(struct seq_file *m, struct pid_namespace *ns,
48223 gtime = task->gtime;
48224 }
48225
48226 +#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
48227 + if (PAX_RAND_FLAGS(mm)) {
48228 + eip = 0;
48229 + esp = 0;
48230 + wchan = 0;
48231 + }
48232 +#endif
48233 +#ifdef CONFIG_GRKERNSEC_HIDESYM
48234 + wchan = 0;
48235 + eip =0;
48236 + esp =0;
48237 +#endif
48238 +
48239 /* scale priority and nice values from timeslices to -20..20 */
48240 /* to make it look like a "normal" Unix priority/nice value */
48241 priority = task_prio(task);
48242 @@ -494,9 +545,15 @@ static int do_task_stat(struct seq_file *m, struct pid_namespace *ns,
48243 seq_put_decimal_ull(m, ' ', vsize);
48244 seq_put_decimal_ull(m, ' ', mm ? get_mm_rss(mm) : 0);
48245 seq_put_decimal_ull(m, ' ', rsslim);
48246 +#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
48247 + seq_put_decimal_ull(m, ' ', PAX_RAND_FLAGS(mm) ? 1 : (mm ? (permitted ? mm->start_code : 1) : 0));
48248 + seq_put_decimal_ull(m, ' ', PAX_RAND_FLAGS(mm) ? 1 : (mm ? (permitted ? mm->end_code : 1) : 0));
48249 + seq_put_decimal_ull(m, ' ', PAX_RAND_FLAGS(mm) ? 0 : ((permitted && mm) ? mm->start_stack : 0));
48250 +#else
48251 seq_put_decimal_ull(m, ' ', mm ? (permitted ? mm->start_code : 1) : 0);
48252 seq_put_decimal_ull(m, ' ', mm ? (permitted ? mm->end_code : 1) : 0);
48253 seq_put_decimal_ull(m, ' ', (permitted && mm) ? mm->start_stack : 0);
48254 +#endif
48255 seq_put_decimal_ull(m, ' ', esp);
48256 seq_put_decimal_ull(m, ' ', eip);
48257 /* The signal information here is obsolete.
48258 @@ -518,7 +575,11 @@ static int do_task_stat(struct seq_file *m, struct pid_namespace *ns,
48259 seq_put_decimal_ull(m, ' ', cputime_to_clock_t(gtime));
48260 seq_put_decimal_ll(m, ' ', cputime_to_clock_t(cgtime));
48261
48262 - if (mm && permitted) {
48263 + if (mm && permitted
48264 +#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
48265 + && !PAX_RAND_FLAGS(mm)
48266 +#endif
48267 + ) {
48268 seq_put_decimal_ull(m, ' ', mm->start_data);
48269 seq_put_decimal_ull(m, ' ', mm->end_data);
48270 seq_put_decimal_ull(m, ' ', mm->start_brk);
48271 @@ -556,8 +617,15 @@ int proc_pid_statm(struct seq_file *m, struct pid_namespace *ns,
48272 struct pid *pid, struct task_struct *task)
48273 {
48274 unsigned long size = 0, resident = 0, shared = 0, text = 0, data = 0;
48275 - struct mm_struct *mm = get_task_mm(task);
48276 + struct mm_struct *mm;
48277
48278 +#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
48279 + if (current->exec_id != m->exec_id) {
48280 + gr_log_badprocpid("statm");
48281 + return 0;
48282 + }
48283 +#endif
48284 + mm = get_task_mm(task);
48285 if (mm) {
48286 size = task_statm(mm, &shared, &text, &data, &resident);
48287 mmput(mm);
48288 @@ -580,6 +648,21 @@ int proc_pid_statm(struct seq_file *m, struct pid_namespace *ns,
48289 return 0;
48290 }
48291
48292 +#ifdef CONFIG_GRKERNSEC_PROC_IPADDR
48293 +int proc_pid_ipaddr(struct task_struct *task, char *buffer)
48294 +{
48295 + u32 curr_ip = 0;
48296 + unsigned long flags;
48297 +
48298 + if (lock_task_sighand(task, &flags)) {
48299 + curr_ip = task->signal->curr_ip;
48300 + unlock_task_sighand(task, &flags);
48301 + }
48302 +
48303 + return sprintf(buffer, "%pI4\n", &curr_ip);
48304 +}
48305 +#endif
48306 +
48307 #ifdef CONFIG_CHECKPOINT_RESTORE
48308 static struct pid *
48309 get_children_pid(struct inode *inode, struct pid *pid_prev, loff_t pos)
48310 diff --git a/fs/proc/base.c b/fs/proc/base.c
48311 index 437195f..cd2210d 100644
48312 --- a/fs/proc/base.c
48313 +++ b/fs/proc/base.c
48314 @@ -110,6 +110,14 @@ struct pid_entry {
48315 union proc_op op;
48316 };
48317
48318 +struct getdents_callback {
48319 + struct linux_dirent __user * current_dir;
48320 + struct linux_dirent __user * previous;
48321 + struct file * file;
48322 + int count;
48323 + int error;
48324 +};
48325 +
48326 #define NOD(NAME, MODE, IOP, FOP, OP) { \
48327 .name = (NAME), \
48328 .len = sizeof(NAME) - 1, \
48329 @@ -209,6 +217,9 @@ static int proc_pid_cmdline(struct task_struct *task, char * buffer)
48330 if (!mm->arg_end)
48331 goto out_mm; /* Shh! No looking before we're done */
48332
48333 + if (gr_acl_handle_procpidmem(task))
48334 + goto out_mm;
48335 +
48336 len = mm->arg_end - mm->arg_start;
48337
48338 if (len > PAGE_SIZE)
48339 @@ -236,12 +247,28 @@ out:
48340 return res;
48341 }
48342
48343 +#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
48344 +#define PAX_RAND_FLAGS(_mm) (_mm != NULL && _mm != current->mm && \
48345 + (_mm->pax_flags & MF_PAX_RANDMMAP || \
48346 + _mm->pax_flags & MF_PAX_SEGMEXEC))
48347 +#endif
48348 +
48349 static int proc_pid_auxv(struct task_struct *task, char *buffer)
48350 {
48351 struct mm_struct *mm = mm_access(task, PTRACE_MODE_READ);
48352 int res = PTR_ERR(mm);
48353 if (mm && !IS_ERR(mm)) {
48354 unsigned int nwords = 0;
48355 +
48356 +#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
48357 + /* allow if we're currently ptracing this task */
48358 + if (PAX_RAND_FLAGS(mm) &&
48359 + (!(task->ptrace & PT_PTRACED) || (task->parent != current))) {
48360 + mmput(mm);
48361 + return 0;
48362 + }
48363 +#endif
48364 +
48365 do {
48366 nwords += 2;
48367 } while (mm->saved_auxv[nwords - 2] != 0); /* AT_NULL */
48368 @@ -255,7 +282,7 @@ static int proc_pid_auxv(struct task_struct *task, char *buffer)
48369 }
48370
48371
48372 -#ifdef CONFIG_KALLSYMS
48373 +#if defined(CONFIG_KALLSYMS) && !defined(CONFIG_GRKERNSEC_HIDESYM)
48374 /*
48375 * Provides a wchan file via kallsyms in a proper one-value-per-file format.
48376 * Returns the resolved symbol. If that fails, simply return the address.
48377 @@ -294,7 +321,7 @@ static void unlock_trace(struct task_struct *task)
48378 mutex_unlock(&task->signal->cred_guard_mutex);
48379 }
48380
48381 -#ifdef CONFIG_STACKTRACE
48382 +#if defined(CONFIG_STACKTRACE) && !defined(CONFIG_GRKERNSEC_HIDESYM)
48383
48384 #define MAX_STACK_TRACE_DEPTH 64
48385
48386 @@ -486,7 +513,7 @@ static int proc_pid_limits(struct task_struct *task, char *buffer)
48387 return count;
48388 }
48389
48390 -#ifdef CONFIG_HAVE_ARCH_TRACEHOOK
48391 +#if defined(CONFIG_HAVE_ARCH_TRACEHOOK) && !defined(CONFIG_GRKERNSEC_PROC_MEMMAP)
48392 static int proc_pid_syscall(struct task_struct *task, char *buffer)
48393 {
48394 long nr;
48395 @@ -515,7 +542,7 @@ static int proc_pid_syscall(struct task_struct *task, char *buffer)
48396 /************************************************************************/
48397
48398 /* permission checks */
48399 -static int proc_fd_access_allowed(struct inode *inode)
48400 +static int proc_fd_access_allowed(struct inode *inode, unsigned int log)
48401 {
48402 struct task_struct *task;
48403 int allowed = 0;
48404 @@ -525,7 +552,10 @@ static int proc_fd_access_allowed(struct inode *inode)
48405 */
48406 task = get_proc_task(inode);
48407 if (task) {
48408 - allowed = ptrace_may_access(task, PTRACE_MODE_READ);
48409 + if (log)
48410 + allowed = ptrace_may_access(task, PTRACE_MODE_READ);
48411 + else
48412 + allowed = ptrace_may_access(task, PTRACE_MODE_READ | PTRACE_MODE_NOAUDIT);
48413 put_task_struct(task);
48414 }
48415 return allowed;
48416 @@ -563,10 +593,35 @@ static bool has_pid_permissions(struct pid_namespace *pid,
48417 struct task_struct *task,
48418 int hide_pid_min)
48419 {
48420 + if (gr_pid_is_chrooted(task) || gr_check_hidden_task(task))
48421 + return false;
48422 +
48423 +#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
48424 + rcu_read_lock();
48425 + {
48426 + const struct cred *tmpcred = current_cred();
48427 + const struct cred *cred = __task_cred(task);
48428 +
48429 + if (!tmpcred->uid || (tmpcred->uid == cred->uid)
48430 +#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
48431 + || in_group_p(CONFIG_GRKERNSEC_PROC_GID)
48432 +#endif
48433 + ) {
48434 + rcu_read_unlock();
48435 + return true;
48436 + }
48437 + }
48438 + rcu_read_unlock();
48439 +
48440 + if (!pid->hide_pid)
48441 + return false;
48442 +#endif
48443 +
48444 if (pid->hide_pid < hide_pid_min)
48445 return true;
48446 if (in_group_p(pid->pid_gid))
48447 return true;
48448 +
48449 return ptrace_may_access(task, PTRACE_MODE_READ);
48450 }
48451
48452 @@ -584,7 +639,11 @@ static int proc_pid_permission(struct inode *inode, int mask)
48453 put_task_struct(task);
48454
48455 if (!has_perms) {
48456 +#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
48457 + {
48458 +#else
48459 if (pid->hide_pid == 2) {
48460 +#endif
48461 /*
48462 * Let's make getdents(), stat(), and open()
48463 * consistent with each other. If a process
48464 @@ -682,6 +741,11 @@ static int __mem_open(struct inode *inode, struct file *file, unsigned int mode)
48465 if (!task)
48466 return -ESRCH;
48467
48468 + if (gr_acl_handle_procpidmem(task)) {
48469 + put_task_struct(task);
48470 + return -EPERM;
48471 + }
48472 +
48473 mm = mm_access(task, mode);
48474 put_task_struct(task);
48475
48476 @@ -695,16 +759,24 @@ static int __mem_open(struct inode *inode, struct file *file, unsigned int mode)
48477 mmput(mm);
48478 }
48479
48480 - /* OK to pass negative loff_t, we can catch out-of-range */
48481 - file->f_mode |= FMODE_UNSIGNED_OFFSET;
48482 file->private_data = mm;
48483
48484 +#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
48485 + file->f_version = current->exec_id;
48486 +#endif
48487 +
48488 return 0;
48489 }
48490
48491 static int mem_open(struct inode *inode, struct file *file)
48492 {
48493 - return __mem_open(inode, file, PTRACE_MODE_ATTACH);
48494 + int ret;
48495 + ret = __mem_open(inode, file, PTRACE_MODE_ATTACH);
48496 +
48497 + /* OK to pass negative loff_t, we can catch out-of-range */
48498 + file->f_mode |= FMODE_UNSIGNED_OFFSET;
48499 +
48500 + return ret;
48501 }
48502
48503 static ssize_t mem_rw(struct file *file, char __user *buf,
48504 @@ -715,6 +787,17 @@ static ssize_t mem_rw(struct file *file, char __user *buf,
48505 ssize_t copied;
48506 char *page;
48507
48508 +#ifdef CONFIG_GRKERNSEC
48509 + if (write)
48510 + return -EPERM;
48511 +#endif
48512 +#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
48513 + if (file->f_version != current->exec_id) {
48514 + gr_log_badprocpid("mem");
48515 + return 0;
48516 + }
48517 +#endif
48518 +
48519 if (!mm)
48520 return 0;
48521
48522 @@ -819,6 +902,13 @@ static ssize_t environ_read(struct file *file, char __user *buf,
48523 if (!mm)
48524 return 0;
48525
48526 +#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
48527 + if (file->f_version != current->exec_id) {
48528 + gr_log_badprocpid("environ");
48529 + return 0;
48530 + }
48531 +#endif
48532 +
48533 page = (char *)__get_free_page(GFP_TEMPORARY);
48534 if (!page)
48535 return -ENOMEM;
48536 @@ -827,15 +917,17 @@ static ssize_t environ_read(struct file *file, char __user *buf,
48537 if (!atomic_inc_not_zero(&mm->mm_users))
48538 goto free;
48539 while (count > 0) {
48540 - int this_len, retval, max_len;
48541 + size_t this_len, max_len;
48542 + int retval;
48543 +
48544 + if (src >= (mm->env_end - mm->env_start))
48545 + break;
48546
48547 this_len = mm->env_end - (mm->env_start + src);
48548
48549 - if (this_len <= 0)
48550 - break;
48551
48552 - max_len = (count > PAGE_SIZE) ? PAGE_SIZE : count;
48553 - this_len = (this_len > max_len) ? max_len : this_len;
48554 + max_len = min_t(size_t, PAGE_SIZE, count);
48555 + this_len = min(max_len, this_len);
48556
48557 retval = access_remote_vm(mm, (mm->env_start + src),
48558 page, this_len, 0);
48559 @@ -1433,7 +1525,7 @@ static void *proc_pid_follow_link(struct dentry *dentry, struct nameidata *nd)
48560 path_put(&nd->path);
48561
48562 /* Are we allowed to snoop on the tasks file descriptors? */
48563 - if (!proc_fd_access_allowed(inode))
48564 + if (!proc_fd_access_allowed(inode, 0))
48565 goto out;
48566
48567 error = PROC_I(inode)->op.proc_get_link(dentry, &nd->path);
48568 @@ -1472,8 +1564,18 @@ static int proc_pid_readlink(struct dentry * dentry, char __user * buffer, int b
48569 struct path path;
48570
48571 /* Are we allowed to snoop on the tasks file descriptors? */
48572 - if (!proc_fd_access_allowed(inode))
48573 - goto out;
48574 + /* logging this is needed for learning on chromium to work properly,
48575 + but we don't want to flood the logs from 'ps' which does a readlink
48576 + on /proc/fd/2 of tasks in the listing, nor do we want 'ps' to learn
48577 + CAP_SYS_PTRACE as it's not necessary for its basic functionality
48578 + */
48579 + if (dentry->d_name.name[0] == '2' && dentry->d_name.name[1] == '\0') {
48580 + if (!proc_fd_access_allowed(inode,0))
48581 + goto out;
48582 + } else {
48583 + if (!proc_fd_access_allowed(inode,1))
48584 + goto out;
48585 + }
48586
48587 error = PROC_I(inode)->op.proc_get_link(dentry, &path);
48588 if (error)
48589 @@ -1538,7 +1640,11 @@ struct inode *proc_pid_make_inode(struct super_block * sb, struct task_struct *t
48590 rcu_read_lock();
48591 cred = __task_cred(task);
48592 inode->i_uid = cred->euid;
48593 +#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
48594 + inode->i_gid = CONFIG_GRKERNSEC_PROC_GID;
48595 +#else
48596 inode->i_gid = cred->egid;
48597 +#endif
48598 rcu_read_unlock();
48599 }
48600 security_task_to_inode(task, inode);
48601 @@ -1574,10 +1680,19 @@ int pid_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat)
48602 return -ENOENT;
48603 }
48604 if ((inode->i_mode == (S_IFDIR|S_IRUGO|S_IXUGO)) ||
48605 +#ifdef CONFIG_GRKERNSEC_PROC_USER
48606 + (inode->i_mode == (S_IFDIR|S_IRUSR|S_IXUSR)) ||
48607 +#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
48608 + (inode->i_mode == (S_IFDIR|S_IRUSR|S_IRGRP|S_IXUSR|S_IXGRP)) ||
48609 +#endif
48610 task_dumpable(task)) {
48611 cred = __task_cred(task);
48612 stat->uid = cred->euid;
48613 +#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
48614 + stat->gid = CONFIG_GRKERNSEC_PROC_GID;
48615 +#else
48616 stat->gid = cred->egid;
48617 +#endif
48618 }
48619 }
48620 rcu_read_unlock();
48621 @@ -1615,11 +1730,20 @@ int pid_revalidate(struct dentry *dentry, struct nameidata *nd)
48622
48623 if (task) {
48624 if ((inode->i_mode == (S_IFDIR|S_IRUGO|S_IXUGO)) ||
48625 +#ifdef CONFIG_GRKERNSEC_PROC_USER
48626 + (inode->i_mode == (S_IFDIR|S_IRUSR|S_IXUSR)) ||
48627 +#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
48628 + (inode->i_mode == (S_IFDIR|S_IRUSR|S_IRGRP|S_IXUSR|S_IXGRP)) ||
48629 +#endif
48630 task_dumpable(task)) {
48631 rcu_read_lock();
48632 cred = __task_cred(task);
48633 inode->i_uid = cred->euid;
48634 +#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
48635 + inode->i_gid = CONFIG_GRKERNSEC_PROC_GID;
48636 +#else
48637 inode->i_gid = cred->egid;
48638 +#endif
48639 rcu_read_unlock();
48640 } else {
48641 inode->i_uid = GLOBAL_ROOT_UID;
48642 @@ -1737,7 +1861,8 @@ static int proc_fd_info(struct inode *inode, struct path *path, char *info)
48643 int fd = proc_fd(inode);
48644
48645 if (task) {
48646 - files = get_files_struct(task);
48647 + if (!gr_acl_handle_procpidmem(task))
48648 + files = get_files_struct(task);
48649 put_task_struct(task);
48650 }
48651 if (files) {
48652 @@ -2336,11 +2461,21 @@ static const struct file_operations proc_map_files_operations = {
48653 */
48654 static int proc_fd_permission(struct inode *inode, int mask)
48655 {
48656 + struct task_struct *task;
48657 int rv = generic_permission(inode, mask);
48658 - if (rv == 0)
48659 - return 0;
48660 +
48661 if (task_pid(current) == proc_pid(inode))
48662 rv = 0;
48663 +
48664 + task = get_proc_task(inode);
48665 + if (task == NULL)
48666 + return rv;
48667 +
48668 + if (gr_acl_handle_procpidmem(task))
48669 + rv = -EACCES;
48670 +
48671 + put_task_struct(task);
48672 +
48673 return rv;
48674 }
48675
48676 @@ -2450,6 +2585,9 @@ static struct dentry *proc_pident_lookup(struct inode *dir,
48677 if (!task)
48678 goto out_no_task;
48679
48680 + if (gr_pid_is_chrooted(task) || gr_check_hidden_task(task))
48681 + goto out;
48682 +
48683 /*
48684 * Yes, it does not scale. And it should not. Don't add
48685 * new entries into /proc/<tgid>/ without very good reasons.
48686 @@ -2494,6 +2632,9 @@ static int proc_pident_readdir(struct file *filp,
48687 if (!task)
48688 goto out_no_task;
48689
48690 + if (gr_pid_is_chrooted(task) || gr_check_hidden_task(task))
48691 + goto out;
48692 +
48693 ret = 0;
48694 i = filp->f_pos;
48695 switch (i) {
48696 @@ -2764,7 +2905,7 @@ static void *proc_self_follow_link(struct dentry *dentry, struct nameidata *nd)
48697 static void proc_self_put_link(struct dentry *dentry, struct nameidata *nd,
48698 void *cookie)
48699 {
48700 - char *s = nd_get_link(nd);
48701 + const char *s = nd_get_link(nd);
48702 if (!IS_ERR(s))
48703 __putname(s);
48704 }
48705 @@ -3033,7 +3174,7 @@ static const struct pid_entry tgid_base_stuff[] = {
48706 REG("autogroup", S_IRUGO|S_IWUSR, proc_pid_sched_autogroup_operations),
48707 #endif
48708 REG("comm", S_IRUGO|S_IWUSR, proc_pid_set_comm_operations),
48709 -#ifdef CONFIG_HAVE_ARCH_TRACEHOOK
48710 +#if defined(CONFIG_HAVE_ARCH_TRACEHOOK) && !defined(CONFIG_GRKERNSEC_PROC_MEMMAP)
48711 INF("syscall", S_IRUGO, proc_pid_syscall),
48712 #endif
48713 INF("cmdline", S_IRUGO, proc_pid_cmdline),
48714 @@ -3058,10 +3199,10 @@ static const struct pid_entry tgid_base_stuff[] = {
48715 #ifdef CONFIG_SECURITY
48716 DIR("attr", S_IRUGO|S_IXUGO, proc_attr_dir_inode_operations, proc_attr_dir_operations),
48717 #endif
48718 -#ifdef CONFIG_KALLSYMS
48719 +#if defined(CONFIG_KALLSYMS) && !defined(CONFIG_GRKERNSEC_HIDESYM)
48720 INF("wchan", S_IRUGO, proc_pid_wchan),
48721 #endif
48722 -#ifdef CONFIG_STACKTRACE
48723 +#if defined(CONFIG_STACKTRACE) && !defined(CONFIG_GRKERNSEC_HIDESYM)
48724 ONE("stack", S_IRUGO, proc_pid_stack),
48725 #endif
48726 #ifdef CONFIG_SCHEDSTATS
48727 @@ -3095,6 +3236,9 @@ static const struct pid_entry tgid_base_stuff[] = {
48728 #ifdef CONFIG_HARDWALL
48729 INF("hardwall", S_IRUGO, proc_pid_hardwall),
48730 #endif
48731 +#ifdef CONFIG_GRKERNSEC_PROC_IPADDR
48732 + INF("ipaddr", S_IRUSR, proc_pid_ipaddr),
48733 +#endif
48734 #ifdef CONFIG_USER_NS
48735 REG("uid_map", S_IRUGO|S_IWUSR, proc_uid_map_operations),
48736 REG("gid_map", S_IRUGO|S_IWUSR, proc_gid_map_operations),
48737 @@ -3225,7 +3369,14 @@ static struct dentry *proc_pid_instantiate(struct inode *dir,
48738 if (!inode)
48739 goto out;
48740
48741 +#ifdef CONFIG_GRKERNSEC_PROC_USER
48742 + inode->i_mode = S_IFDIR|S_IRUSR|S_IXUSR;
48743 +#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
48744 + inode->i_gid = CONFIG_GRKERNSEC_PROC_GID;
48745 + inode->i_mode = S_IFDIR|S_IRUSR|S_IRGRP|S_IXUSR|S_IXGRP;
48746 +#else
48747 inode->i_mode = S_IFDIR|S_IRUGO|S_IXUGO;
48748 +#endif
48749 inode->i_op = &proc_tgid_base_inode_operations;
48750 inode->i_fop = &proc_tgid_base_operations;
48751 inode->i_flags|=S_IMMUTABLE;
48752 @@ -3267,7 +3418,11 @@ struct dentry *proc_pid_lookup(struct inode *dir, struct dentry * dentry, struct
48753 if (!task)
48754 goto out;
48755
48756 + if (gr_pid_is_chrooted(task) || gr_check_hidden_task(task))
48757 + goto out_put_task;
48758 +
48759 result = proc_pid_instantiate(dir, dentry, task, NULL);
48760 +out_put_task:
48761 put_task_struct(task);
48762 out:
48763 return result;
48764 @@ -3330,6 +3485,8 @@ static int proc_pid_fill_cache(struct file *filp, void *dirent, filldir_t filldi
48765 static int fake_filldir(void *buf, const char *name, int namelen,
48766 loff_t offset, u64 ino, unsigned d_type)
48767 {
48768 + struct getdents_callback * __buf = (struct getdents_callback *) buf;
48769 + __buf->error = -EINVAL;
48770 return 0;
48771 }
48772
48773 @@ -3396,7 +3553,7 @@ static const struct pid_entry tid_base_stuff[] = {
48774 REG("sched", S_IRUGO|S_IWUSR, proc_pid_sched_operations),
48775 #endif
48776 REG("comm", S_IRUGO|S_IWUSR, proc_pid_set_comm_operations),
48777 -#ifdef CONFIG_HAVE_ARCH_TRACEHOOK
48778 +#if defined(CONFIG_HAVE_ARCH_TRACEHOOK) && !defined(CONFIG_GRKERNSEC_PROC_MEMMAP)
48779 INF("syscall", S_IRUGO, proc_pid_syscall),
48780 #endif
48781 INF("cmdline", S_IRUGO, proc_pid_cmdline),
48782 @@ -3423,10 +3580,10 @@ static const struct pid_entry tid_base_stuff[] = {
48783 #ifdef CONFIG_SECURITY
48784 DIR("attr", S_IRUGO|S_IXUGO, proc_attr_dir_inode_operations, proc_attr_dir_operations),
48785 #endif
48786 -#ifdef CONFIG_KALLSYMS
48787 +#if defined(CONFIG_KALLSYMS) && !defined(CONFIG_GRKERNSEC_HIDESYM)
48788 INF("wchan", S_IRUGO, proc_pid_wchan),
48789 #endif
48790 -#ifdef CONFIG_STACKTRACE
48791 +#if defined(CONFIG_STACKTRACE) && !defined(CONFIG_GRKERNSEC_HIDESYM)
48792 ONE("stack", S_IRUGO, proc_pid_stack),
48793 #endif
48794 #ifdef CONFIG_SCHEDSTATS
48795 diff --git a/fs/proc/cmdline.c b/fs/proc/cmdline.c
48796 index 82676e3..5f8518a 100644
48797 --- a/fs/proc/cmdline.c
48798 +++ b/fs/proc/cmdline.c
48799 @@ -23,7 +23,11 @@ static const struct file_operations cmdline_proc_fops = {
48800
48801 static int __init proc_cmdline_init(void)
48802 {
48803 +#ifdef CONFIG_GRKERNSEC_PROC_ADD
48804 + proc_create_grsec("cmdline", 0, NULL, &cmdline_proc_fops);
48805 +#else
48806 proc_create("cmdline", 0, NULL, &cmdline_proc_fops);
48807 +#endif
48808 return 0;
48809 }
48810 module_init(proc_cmdline_init);
48811 diff --git a/fs/proc/devices.c b/fs/proc/devices.c
48812 index b143471..bb105e5 100644
48813 --- a/fs/proc/devices.c
48814 +++ b/fs/proc/devices.c
48815 @@ -64,7 +64,11 @@ static const struct file_operations proc_devinfo_operations = {
48816
48817 static int __init proc_devices_init(void)
48818 {
48819 +#ifdef CONFIG_GRKERNSEC_PROC_ADD
48820 + proc_create_grsec("devices", 0, NULL, &proc_devinfo_operations);
48821 +#else
48822 proc_create("devices", 0, NULL, &proc_devinfo_operations);
48823 +#endif
48824 return 0;
48825 }
48826 module_init(proc_devices_init);
48827 diff --git a/fs/proc/inode.c b/fs/proc/inode.c
48828 index 7ac817b..abab1a5 100644
48829 --- a/fs/proc/inode.c
48830 +++ b/fs/proc/inode.c
48831 @@ -21,11 +21,17 @@
48832 #include <linux/seq_file.h>
48833 #include <linux/slab.h>
48834 #include <linux/mount.h>
48835 +#include <linux/grsecurity.h>
48836
48837 #include <asm/uaccess.h>
48838
48839 #include "internal.h"
48840
48841 +#ifdef CONFIG_PROC_SYSCTL
48842 +extern const struct inode_operations proc_sys_inode_operations;
48843 +extern const struct inode_operations proc_sys_dir_operations;
48844 +#endif
48845 +
48846 static void proc_evict_inode(struct inode *inode)
48847 {
48848 struct proc_dir_entry *de;
48849 @@ -51,6 +57,13 @@ static void proc_evict_inode(struct inode *inode)
48850 ns_ops = PROC_I(inode)->ns_ops;
48851 if (ns_ops && ns_ops->put)
48852 ns_ops->put(PROC_I(inode)->ns);
48853 +
48854 +#ifdef CONFIG_PROC_SYSCTL
48855 + if (inode->i_op == &proc_sys_inode_operations ||
48856 + inode->i_op == &proc_sys_dir_operations)
48857 + gr_handle_delete(inode->i_ino, inode->i_sb->s_dev);
48858 +#endif
48859 +
48860 }
48861
48862 static struct kmem_cache * proc_inode_cachep;
48863 @@ -456,7 +469,11 @@ struct inode *proc_get_inode(struct super_block *sb, struct proc_dir_entry *de)
48864 if (de->mode) {
48865 inode->i_mode = de->mode;
48866 inode->i_uid = de->uid;
48867 +#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
48868 + inode->i_gid = CONFIG_GRKERNSEC_PROC_GID;
48869 +#else
48870 inode->i_gid = de->gid;
48871 +#endif
48872 }
48873 if (de->size)
48874 inode->i_size = de->size;
48875 diff --git a/fs/proc/internal.h b/fs/proc/internal.h
48876 index eca4aca..19166b2 100644
48877 --- a/fs/proc/internal.h
48878 +++ b/fs/proc/internal.h
48879 @@ -52,6 +52,9 @@ extern int proc_pid_status(struct seq_file *m, struct pid_namespace *ns,
48880 struct pid *pid, struct task_struct *task);
48881 extern int proc_pid_statm(struct seq_file *m, struct pid_namespace *ns,
48882 struct pid *pid, struct task_struct *task);
48883 +#ifdef CONFIG_GRKERNSEC_PROC_IPADDR
48884 +extern int proc_pid_ipaddr(struct task_struct *task, char *buffer);
48885 +#endif
48886 extern loff_t mem_lseek(struct file *file, loff_t offset, int orig);
48887
48888 extern const struct file_operations proc_tid_children_operations;
48889 diff --git a/fs/proc/kcore.c b/fs/proc/kcore.c
48890 index 86c67ee..cdca321 100644
48891 --- a/fs/proc/kcore.c
48892 +++ b/fs/proc/kcore.c
48893 @@ -480,9 +480,10 @@ read_kcore(struct file *file, char __user *buffer, size_t buflen, loff_t *fpos)
48894 * the addresses in the elf_phdr on our list.
48895 */
48896 start = kc_offset_to_vaddr(*fpos - elf_buflen);
48897 - if ((tsz = (PAGE_SIZE - (start & ~PAGE_MASK))) > buflen)
48898 + tsz = PAGE_SIZE - (start & ~PAGE_MASK);
48899 + if (tsz > buflen)
48900 tsz = buflen;
48901 -
48902 +
48903 while (buflen) {
48904 struct kcore_list *m;
48905
48906 @@ -511,20 +512,23 @@ read_kcore(struct file *file, char __user *buffer, size_t buflen, loff_t *fpos)
48907 kfree(elf_buf);
48908 } else {
48909 if (kern_addr_valid(start)) {
48910 - unsigned long n;
48911 + char *elf_buf;
48912 + mm_segment_t oldfs;
48913
48914 - n = copy_to_user(buffer, (char *)start, tsz);
48915 - /*
48916 - * We cannot distinguish between fault on source
48917 - * and fault on destination. When this happens
48918 - * we clear too and hope it will trigger the
48919 - * EFAULT again.
48920 - */
48921 - if (n) {
48922 - if (clear_user(buffer + tsz - n,
48923 - n))
48924 + elf_buf = kmalloc(tsz, GFP_KERNEL);
48925 + if (!elf_buf)
48926 + return -ENOMEM;
48927 + oldfs = get_fs();
48928 + set_fs(KERNEL_DS);
48929 + if (!__copy_from_user(elf_buf, (const void __user *)start, tsz)) {
48930 + set_fs(oldfs);
48931 + if (copy_to_user(buffer, elf_buf, tsz)) {
48932 + kfree(elf_buf);
48933 return -EFAULT;
48934 + }
48935 }
48936 + set_fs(oldfs);
48937 + kfree(elf_buf);
48938 } else {
48939 if (clear_user(buffer, tsz))
48940 return -EFAULT;
48941 @@ -544,6 +548,9 @@ read_kcore(struct file *file, char __user *buffer, size_t buflen, loff_t *fpos)
48942
48943 static int open_kcore(struct inode *inode, struct file *filp)
48944 {
48945 +#if defined(CONFIG_GRKERNSEC_PROC_ADD) || defined(CONFIG_GRKERNSEC_HIDESYM)
48946 + return -EPERM;
48947 +#endif
48948 if (!capable(CAP_SYS_RAWIO))
48949 return -EPERM;
48950 if (kcore_need_update)
48951 diff --git a/fs/proc/meminfo.c b/fs/proc/meminfo.c
48952 index 80e4645..53e5fcf 100644
48953 --- a/fs/proc/meminfo.c
48954 +++ b/fs/proc/meminfo.c
48955 @@ -158,7 +158,7 @@ static int meminfo_proc_show(struct seq_file *m, void *v)
48956 vmi.used >> 10,
48957 vmi.largest_chunk >> 10
48958 #ifdef CONFIG_MEMORY_FAILURE
48959 - ,atomic_long_read(&mce_bad_pages) << (PAGE_SHIFT - 10)
48960 + ,atomic_long_read_unchecked(&mce_bad_pages) << (PAGE_SHIFT - 10)
48961 #endif
48962 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
48963 ,K(global_page_state(NR_ANON_TRANSPARENT_HUGEPAGES) *
48964 diff --git a/fs/proc/nommu.c b/fs/proc/nommu.c
48965 index b1822dd..df622cb 100644
48966 --- a/fs/proc/nommu.c
48967 +++ b/fs/proc/nommu.c
48968 @@ -66,7 +66,7 @@ static int nommu_region_show(struct seq_file *m, struct vm_region *region)
48969 if (len < 1)
48970 len = 1;
48971 seq_printf(m, "%*c", len, ' ');
48972 - seq_path(m, &file->f_path, "");
48973 + seq_path(m, &file->f_path, "\n\\");
48974 }
48975
48976 seq_putc(m, '\n');
48977 diff --git a/fs/proc/proc_net.c b/fs/proc/proc_net.c
48978 index 06e1cc1..177cd98 100644
48979 --- a/fs/proc/proc_net.c
48980 +++ b/fs/proc/proc_net.c
48981 @@ -105,6 +105,17 @@ static struct net *get_proc_task_net(struct inode *dir)
48982 struct task_struct *task;
48983 struct nsproxy *ns;
48984 struct net *net = NULL;
48985 +#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
48986 + const struct cred *cred = current_cred();
48987 +#endif
48988 +
48989 +#ifdef CONFIG_GRKERNSEC_PROC_USER
48990 + if (cred->fsuid)
48991 + return net;
48992 +#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
48993 + if (cred->fsuid && !in_group_p(CONFIG_GRKERNSEC_PROC_GID))
48994 + return net;
48995 +#endif
48996
48997 rcu_read_lock();
48998 task = pid_task(proc_pid(dir), PIDTYPE_PID);
48999 diff --git a/fs/proc/proc_sysctl.c b/fs/proc/proc_sysctl.c
49000 index 3476bca..cb6d86a 100644
49001 --- a/fs/proc/proc_sysctl.c
49002 +++ b/fs/proc/proc_sysctl.c
49003 @@ -12,11 +12,15 @@
49004 #include <linux/module.h>
49005 #include "internal.h"
49006
49007 +extern int gr_handle_chroot_sysctl(const int op);
49008 +extern int gr_handle_sysctl_mod(const char *dirname, const char *name,
49009 + const int op);
49010 +
49011 static const struct dentry_operations proc_sys_dentry_operations;
49012 static const struct file_operations proc_sys_file_operations;
49013 -static const struct inode_operations proc_sys_inode_operations;
49014 +const struct inode_operations proc_sys_inode_operations;
49015 static const struct file_operations proc_sys_dir_file_operations;
49016 -static const struct inode_operations proc_sys_dir_operations;
49017 +const struct inode_operations proc_sys_dir_operations;
49018
49019 void proc_sys_poll_notify(struct ctl_table_poll *poll)
49020 {
49021 @@ -470,8 +474,14 @@ static struct dentry *proc_sys_lookup(struct inode *dir, struct dentry *dentry,
49022
49023 err = NULL;
49024 d_set_d_op(dentry, &proc_sys_dentry_operations);
49025 +
49026 + gr_handle_proc_create(dentry, inode);
49027 +
49028 d_add(dentry, inode);
49029
49030 + if (!gr_acl_handle_hidden_file(dentry, nd->path.mnt))
49031 + err = ERR_PTR(-ENOENT);
49032 +
49033 out:
49034 sysctl_head_finish(head);
49035 return err;
49036 @@ -483,18 +493,20 @@ static ssize_t proc_sys_call_handler(struct file *filp, void __user *buf,
49037 struct inode *inode = filp->f_path.dentry->d_inode;
49038 struct ctl_table_header *head = grab_header(inode);
49039 struct ctl_table *table = PROC_I(inode)->sysctl_entry;
49040 + int op = write ? MAY_WRITE : MAY_READ;
49041 ssize_t error;
49042 size_t res;
49043
49044 if (IS_ERR(head))
49045 return PTR_ERR(head);
49046
49047 +
49048 /*
49049 * At this point we know that the sysctl was not unregistered
49050 * and won't be until we finish.
49051 */
49052 error = -EPERM;
49053 - if (sysctl_perm(head->root, table, write ? MAY_WRITE : MAY_READ))
49054 + if (sysctl_perm(head->root, table, op))
49055 goto out;
49056
49057 /* if that can happen at all, it should be -EINVAL, not -EISDIR */
49058 @@ -502,6 +514,22 @@ static ssize_t proc_sys_call_handler(struct file *filp, void __user *buf,
49059 if (!table->proc_handler)
49060 goto out;
49061
49062 +#ifdef CONFIG_GRKERNSEC
49063 + error = -EPERM;
49064 + if (gr_handle_chroot_sysctl(op))
49065 + goto out;
49066 + dget(filp->f_path.dentry);
49067 + if (gr_handle_sysctl_mod(filp->f_path.dentry->d_parent->d_name.name, table->procname, op)) {
49068 + dput(filp->f_path.dentry);
49069 + goto out;
49070 + }
49071 + dput(filp->f_path.dentry);
49072 + if (!gr_acl_handle_open(filp->f_path.dentry, filp->f_path.mnt, op))
49073 + goto out;
49074 + if (write && !capable(CAP_SYS_ADMIN))
49075 + goto out;
49076 +#endif
49077 +
49078 /* careful: calling conventions are nasty here */
49079 res = count;
49080 error = table->proc_handler(table, write, buf, &res, ppos);
49081 @@ -599,6 +627,9 @@ static int proc_sys_fill_cache(struct file *filp, void *dirent,
49082 return -ENOMEM;
49083 } else {
49084 d_set_d_op(child, &proc_sys_dentry_operations);
49085 +
49086 + gr_handle_proc_create(child, inode);
49087 +
49088 d_add(child, inode);
49089 }
49090 } else {
49091 @@ -642,6 +673,9 @@ static int scan(struct ctl_table_header *head, ctl_table *table,
49092 if ((*pos)++ < file->f_pos)
49093 return 0;
49094
49095 + if (!gr_acl_handle_hidden_file(file->f_path.dentry, file->f_path.mnt))
49096 + return 0;
49097 +
49098 if (unlikely(S_ISLNK(table->mode)))
49099 res = proc_sys_link_fill_cache(file, dirent, filldir, head, table);
49100 else
49101 @@ -759,6 +793,9 @@ static int proc_sys_getattr(struct vfsmount *mnt, struct dentry *dentry, struct
49102 if (IS_ERR(head))
49103 return PTR_ERR(head);
49104
49105 + if (table && !gr_acl_handle_hidden_file(dentry, mnt))
49106 + return -ENOENT;
49107 +
49108 generic_fillattr(inode, stat);
49109 if (table)
49110 stat->mode = (stat->mode & S_IFMT) | table->mode;
49111 @@ -781,13 +818,13 @@ static const struct file_operations proc_sys_dir_file_operations = {
49112 .llseek = generic_file_llseek,
49113 };
49114
49115 -static const struct inode_operations proc_sys_inode_operations = {
49116 +const struct inode_operations proc_sys_inode_operations = {
49117 .permission = proc_sys_permission,
49118 .setattr = proc_sys_setattr,
49119 .getattr = proc_sys_getattr,
49120 };
49121
49122 -static const struct inode_operations proc_sys_dir_operations = {
49123 +const struct inode_operations proc_sys_dir_operations = {
49124 .lookup = proc_sys_lookup,
49125 .permission = proc_sys_permission,
49126 .setattr = proc_sys_setattr,
49127 diff --git a/fs/proc/root.c b/fs/proc/root.c
49128 index 7c30fce..b3d3aa2 100644
49129 --- a/fs/proc/root.c
49130 +++ b/fs/proc/root.c
49131 @@ -188,7 +188,15 @@ void __init proc_root_init(void)
49132 #ifdef CONFIG_PROC_DEVICETREE
49133 proc_device_tree_init();
49134 #endif
49135 +#ifdef CONFIG_GRKERNSEC_PROC_ADD
49136 +#ifdef CONFIG_GRKERNSEC_PROC_USER
49137 + proc_mkdir_mode("bus", S_IRUSR | S_IXUSR, NULL);
49138 +#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
49139 + proc_mkdir_mode("bus", S_IRUSR | S_IXUSR | S_IRGRP | S_IXGRP, NULL);
49140 +#endif
49141 +#else
49142 proc_mkdir("bus", NULL);
49143 +#endif
49144 proc_sys_init();
49145 }
49146
49147 diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
49148 index 4540b8f..1b9772f 100644
49149 --- a/fs/proc/task_mmu.c
49150 +++ b/fs/proc/task_mmu.c
49151 @@ -11,12 +11,19 @@
49152 #include <linux/rmap.h>
49153 #include <linux/swap.h>
49154 #include <linux/swapops.h>
49155 +#include <linux/grsecurity.h>
49156
49157 #include <asm/elf.h>
49158 #include <asm/uaccess.h>
49159 #include <asm/tlbflush.h>
49160 #include "internal.h"
49161
49162 +#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
49163 +#define PAX_RAND_FLAGS(_mm) (_mm != NULL && _mm != current->mm && \
49164 + (_mm->pax_flags & MF_PAX_RANDMMAP || \
49165 + _mm->pax_flags & MF_PAX_SEGMEXEC))
49166 +#endif
49167 +
49168 void task_mem(struct seq_file *m, struct mm_struct *mm)
49169 {
49170 unsigned long data, text, lib, swap;
49171 @@ -52,8 +59,13 @@ void task_mem(struct seq_file *m, struct mm_struct *mm)
49172 "VmExe:\t%8lu kB\n"
49173 "VmLib:\t%8lu kB\n"
49174 "VmPTE:\t%8lu kB\n"
49175 - "VmSwap:\t%8lu kB\n",
49176 - hiwater_vm << (PAGE_SHIFT-10),
49177 + "VmSwap:\t%8lu kB\n"
49178 +
49179 +#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT
49180 + "CsBase:\t%8lx\nCsLim:\t%8lx\n"
49181 +#endif
49182 +
49183 + ,hiwater_vm << (PAGE_SHIFT-10),
49184 (total_vm - mm->reserved_vm) << (PAGE_SHIFT-10),
49185 mm->locked_vm << (PAGE_SHIFT-10),
49186 mm->pinned_vm << (PAGE_SHIFT-10),
49187 @@ -62,7 +74,19 @@ void task_mem(struct seq_file *m, struct mm_struct *mm)
49188 data << (PAGE_SHIFT-10),
49189 mm->stack_vm << (PAGE_SHIFT-10), text, lib,
49190 (PTRS_PER_PTE*sizeof(pte_t)*mm->nr_ptes) >> 10,
49191 - swap << (PAGE_SHIFT-10));
49192 + swap << (PAGE_SHIFT-10)
49193 +
49194 +#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT
49195 +#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
49196 + , PAX_RAND_FLAGS(mm) ? 0 : mm->context.user_cs_base
49197 + , PAX_RAND_FLAGS(mm) ? 0 : mm->context.user_cs_limit
49198 +#else
49199 + , mm->context.user_cs_base
49200 + , mm->context.user_cs_limit
49201 +#endif
49202 +#endif
49203 +
49204 + );
49205 }
49206
49207 unsigned long task_vsize(struct mm_struct *mm)
49208 @@ -231,13 +255,13 @@ show_map_vma(struct seq_file *m, struct vm_area_struct *vma, int is_pid)
49209 pgoff = ((loff_t)vma->vm_pgoff) << PAGE_SHIFT;
49210 }
49211
49212 - /* We don't show the stack guard page in /proc/maps */
49213 +#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
49214 + start = PAX_RAND_FLAGS(mm) ? 0UL : vma->vm_start;
49215 + end = PAX_RAND_FLAGS(mm) ? 0UL : vma->vm_end;
49216 +#else
49217 start = vma->vm_start;
49218 - if (stack_guard_page_start(vma, start))
49219 - start += PAGE_SIZE;
49220 end = vma->vm_end;
49221 - if (stack_guard_page_end(vma, end))
49222 - end -= PAGE_SIZE;
49223 +#endif
49224
49225 seq_printf(m, "%08lx-%08lx %c%c%c%c %08llx %02x:%02x %lu %n",
49226 start,
49227 @@ -246,7 +270,11 @@ show_map_vma(struct seq_file *m, struct vm_area_struct *vma, int is_pid)
49228 flags & VM_WRITE ? 'w' : '-',
49229 flags & VM_EXEC ? 'x' : '-',
49230 flags & VM_MAYSHARE ? 's' : 'p',
49231 +#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
49232 + PAX_RAND_FLAGS(mm) ? 0UL : pgoff,
49233 +#else
49234 pgoff,
49235 +#endif
49236 MAJOR(dev), MINOR(dev), ino, &len);
49237
49238 /*
49239 @@ -255,7 +283,7 @@ show_map_vma(struct seq_file *m, struct vm_area_struct *vma, int is_pid)
49240 */
49241 if (file) {
49242 pad_len_spaces(m, len);
49243 - seq_path(m, &file->f_path, "\n");
49244 + seq_path(m, &file->f_path, "\n\\");
49245 goto done;
49246 }
49247
49248 @@ -281,8 +309,9 @@ show_map_vma(struct seq_file *m, struct vm_area_struct *vma, int is_pid)
49249 * Thread stack in /proc/PID/task/TID/maps or
49250 * the main process stack.
49251 */
49252 - if (!is_pid || (vma->vm_start <= mm->start_stack &&
49253 - vma->vm_end >= mm->start_stack)) {
49254 + if (!is_pid || (vma->vm_flags & (VM_GROWSDOWN | VM_GROWSUP)) ||
49255 + (vma->vm_start <= mm->start_stack &&
49256 + vma->vm_end >= mm->start_stack)) {
49257 name = "[stack]";
49258 } else {
49259 /* Thread stack in /proc/PID/maps */
49260 @@ -306,6 +335,13 @@ static int show_map(struct seq_file *m, void *v, int is_pid)
49261 struct proc_maps_private *priv = m->private;
49262 struct task_struct *task = priv->task;
49263
49264 +#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
49265 + if (current->exec_id != m->exec_id) {
49266 + gr_log_badprocpid("maps");
49267 + return 0;
49268 + }
49269 +#endif
49270 +
49271 show_map_vma(m, vma, is_pid);
49272
49273 if (m->count < m->size) /* vma is copied successfully */
49274 @@ -492,12 +528,23 @@ static int show_smap(struct seq_file *m, void *v, int is_pid)
49275 .private = &mss,
49276 };
49277
49278 +#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
49279 + if (current->exec_id != m->exec_id) {
49280 + gr_log_badprocpid("smaps");
49281 + return 0;
49282 + }
49283 +#endif
49284 memset(&mss, 0, sizeof mss);
49285 - mss.vma = vma;
49286 - /* mmap_sem is held in m_start */
49287 - if (vma->vm_mm && !is_vm_hugetlb_page(vma))
49288 - walk_page_range(vma->vm_start, vma->vm_end, &smaps_walk);
49289 -
49290 +#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
49291 + if (!PAX_RAND_FLAGS(vma->vm_mm)) {
49292 +#endif
49293 + mss.vma = vma;
49294 + /* mmap_sem is held in m_start */
49295 + if (vma->vm_mm && !is_vm_hugetlb_page(vma))
49296 + walk_page_range(vma->vm_start, vma->vm_end, &smaps_walk);
49297 +#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
49298 + }
49299 +#endif
49300 show_map_vma(m, vma, is_pid);
49301
49302 seq_printf(m,
49303 @@ -515,7 +562,11 @@ static int show_smap(struct seq_file *m, void *v, int is_pid)
49304 "KernelPageSize: %8lu kB\n"
49305 "MMUPageSize: %8lu kB\n"
49306 "Locked: %8lu kB\n",
49307 +#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
49308 + PAX_RAND_FLAGS(vma->vm_mm) ? 0UL : (vma->vm_end - vma->vm_start) >> 10,
49309 +#else
49310 (vma->vm_end - vma->vm_start) >> 10,
49311 +#endif
49312 mss.resident >> 10,
49313 (unsigned long)(mss.pss >> (10 + PSS_SHIFT)),
49314 mss.shared_clean >> 10,
49315 @@ -1164,6 +1215,13 @@ static int show_numa_map(struct seq_file *m, void *v, int is_pid)
49316 int n;
49317 char buffer[50];
49318
49319 +#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
49320 + if (current->exec_id != m->exec_id) {
49321 + gr_log_badprocpid("numa_maps");
49322 + return 0;
49323 + }
49324 +#endif
49325 +
49326 if (!mm)
49327 return 0;
49328
49329 @@ -1181,11 +1239,15 @@ static int show_numa_map(struct seq_file *m, void *v, int is_pid)
49330 mpol_to_str(buffer, sizeof(buffer), pol, 0);
49331 mpol_cond_put(pol);
49332
49333 +#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
49334 + seq_printf(m, "%08lx %s", PAX_RAND_FLAGS(vma->vm_mm) ? 0UL : vma->vm_start, buffer);
49335 +#else
49336 seq_printf(m, "%08lx %s", vma->vm_start, buffer);
49337 +#endif
49338
49339 if (file) {
49340 seq_printf(m, " file=");
49341 - seq_path(m, &file->f_path, "\n\t= ");
49342 + seq_path(m, &file->f_path, "\n\t\\= ");
49343 } else if (vma->vm_start <= mm->brk && vma->vm_end >= mm->start_brk) {
49344 seq_printf(m, " heap");
49345 } else {
49346 diff --git a/fs/proc/task_nommu.c b/fs/proc/task_nommu.c
49347 index 1ccfa53..0848f95 100644
49348 --- a/fs/proc/task_nommu.c
49349 +++ b/fs/proc/task_nommu.c
49350 @@ -51,7 +51,7 @@ void task_mem(struct seq_file *m, struct mm_struct *mm)
49351 else
49352 bytes += kobjsize(mm);
49353
49354 - if (current->fs && current->fs->users > 1)
49355 + if (current->fs && atomic_read(&current->fs->users) > 1)
49356 sbytes += kobjsize(current->fs);
49357 else
49358 bytes += kobjsize(current->fs);
49359 @@ -168,7 +168,7 @@ static int nommu_vma_show(struct seq_file *m, struct vm_area_struct *vma,
49360
49361 if (file) {
49362 pad_len_spaces(m, len);
49363 - seq_path(m, &file->f_path, "");
49364 + seq_path(m, &file->f_path, "\n\\");
49365 } else if (mm) {
49366 pid_t tid = vm_is_stack(priv->task, vma, is_pid);
49367
49368 diff --git a/fs/quota/netlink.c b/fs/quota/netlink.c
49369 index d67908b..d13f6a6 100644
49370 --- a/fs/quota/netlink.c
49371 +++ b/fs/quota/netlink.c
49372 @@ -33,7 +33,7 @@ static struct genl_family quota_genl_family = {
49373 void quota_send_warning(short type, unsigned int id, dev_t dev,
49374 const char warntype)
49375 {
49376 - static atomic_t seq;
49377 + static atomic_unchecked_t seq;
49378 struct sk_buff *skb;
49379 void *msg_head;
49380 int ret;
49381 @@ -49,7 +49,7 @@ void quota_send_warning(short type, unsigned int id, dev_t dev,
49382 "VFS: Not enough memory to send quota warning.\n");
49383 return;
49384 }
49385 - msg_head = genlmsg_put(skb, 0, atomic_add_return(1, &seq),
49386 + msg_head = genlmsg_put(skb, 0, atomic_add_return_unchecked(1, &seq),
49387 &quota_genl_family, 0, QUOTA_NL_C_WARNING);
49388 if (!msg_head) {
49389 printk(KERN_ERR
49390 diff --git a/fs/readdir.c b/fs/readdir.c
49391 index 39e3370..20d446d 100644
49392 --- a/fs/readdir.c
49393 +++ b/fs/readdir.c
49394 @@ -17,6 +17,7 @@
49395 #include <linux/security.h>
49396 #include <linux/syscalls.h>
49397 #include <linux/unistd.h>
49398 +#include <linux/namei.h>
49399
49400 #include <asm/uaccess.h>
49401
49402 @@ -67,6 +68,7 @@ struct old_linux_dirent {
49403
49404 struct readdir_callback {
49405 struct old_linux_dirent __user * dirent;
49406 + struct file * file;
49407 int result;
49408 };
49409
49410 @@ -84,6 +86,10 @@ static int fillonedir(void * __buf, const char * name, int namlen, loff_t offset
49411 buf->result = -EOVERFLOW;
49412 return -EOVERFLOW;
49413 }
49414 +
49415 + if (!gr_acl_handle_filldir(buf->file, name, namlen, ino))
49416 + return 0;
49417 +
49418 buf->result++;
49419 dirent = buf->dirent;
49420 if (!access_ok(VERIFY_WRITE, dirent,
49421 @@ -116,6 +122,7 @@ SYSCALL_DEFINE3(old_readdir, unsigned int, fd,
49422
49423 buf.result = 0;
49424 buf.dirent = dirent;
49425 + buf.file = file;
49426
49427 error = vfs_readdir(file, fillonedir, &buf);
49428 if (buf.result)
49429 @@ -141,6 +148,7 @@ struct linux_dirent {
49430 struct getdents_callback {
49431 struct linux_dirent __user * current_dir;
49432 struct linux_dirent __user * previous;
49433 + struct file * file;
49434 int count;
49435 int error;
49436 };
49437 @@ -162,6 +170,10 @@ static int filldir(void * __buf, const char * name, int namlen, loff_t offset,
49438 buf->error = -EOVERFLOW;
49439 return -EOVERFLOW;
49440 }
49441 +
49442 + if (!gr_acl_handle_filldir(buf->file, name, namlen, ino))
49443 + return 0;
49444 +
49445 dirent = buf->previous;
49446 if (dirent) {
49447 if (__put_user(offset, &dirent->d_off))
49448 @@ -208,6 +220,7 @@ SYSCALL_DEFINE3(getdents, unsigned int, fd,
49449 buf.previous = NULL;
49450 buf.count = count;
49451 buf.error = 0;
49452 + buf.file = file;
49453
49454 error = vfs_readdir(file, filldir, &buf);
49455 if (error >= 0)
49456 @@ -226,6 +239,7 @@ SYSCALL_DEFINE3(getdents, unsigned int, fd,
49457 struct getdents_callback64 {
49458 struct linux_dirent64 __user * current_dir;
49459 struct linux_dirent64 __user * previous;
49460 + struct file *file;
49461 int count;
49462 int error;
49463 };
49464 @@ -241,6 +255,10 @@ static int filldir64(void * __buf, const char * name, int namlen, loff_t offset,
49465 buf->error = -EINVAL; /* only used if we fail.. */
49466 if (reclen > buf->count)
49467 return -EINVAL;
49468 +
49469 + if (!gr_acl_handle_filldir(buf->file, name, namlen, ino))
49470 + return 0;
49471 +
49472 dirent = buf->previous;
49473 if (dirent) {
49474 if (__put_user(offset, &dirent->d_off))
49475 @@ -287,6 +305,7 @@ SYSCALL_DEFINE3(getdents64, unsigned int, fd,
49476
49477 buf.current_dir = dirent;
49478 buf.previous = NULL;
49479 + buf.file = file;
49480 buf.count = count;
49481 buf.error = 0;
49482
49483 @@ -295,7 +314,7 @@ SYSCALL_DEFINE3(getdents64, unsigned int, fd,
49484 error = buf.error;
49485 lastdirent = buf.previous;
49486 if (lastdirent) {
49487 - typeof(lastdirent->d_off) d_off = file->f_pos;
49488 + typeof(((struct linux_dirent64 *)0)->d_off) d_off = file->f_pos;
49489 if (__put_user(d_off, &lastdirent->d_off))
49490 error = -EFAULT;
49491 else
49492 diff --git a/fs/reiserfs/do_balan.c b/fs/reiserfs/do_balan.c
49493 index 2b7882b..1c5ef48 100644
49494 --- a/fs/reiserfs/do_balan.c
49495 +++ b/fs/reiserfs/do_balan.c
49496 @@ -2051,7 +2051,7 @@ void do_balance(struct tree_balance *tb, /* tree_balance structure */
49497 return;
49498 }
49499
49500 - atomic_inc(&(fs_generation(tb->tb_sb)));
49501 + atomic_inc_unchecked(&(fs_generation(tb->tb_sb)));
49502 do_balance_starts(tb);
49503
49504 /* balance leaf returns 0 except if combining L R and S into
49505 diff --git a/fs/reiserfs/procfs.c b/fs/reiserfs/procfs.c
49506 index 2c1ade6..8c59d8d 100644
49507 --- a/fs/reiserfs/procfs.c
49508 +++ b/fs/reiserfs/procfs.c
49509 @@ -112,7 +112,7 @@ static int show_super(struct seq_file *m, struct super_block *sb)
49510 "SMALL_TAILS " : "NO_TAILS ",
49511 replay_only(sb) ? "REPLAY_ONLY " : "",
49512 convert_reiserfs(sb) ? "CONV " : "",
49513 - atomic_read(&r->s_generation_counter),
49514 + atomic_read_unchecked(&r->s_generation_counter),
49515 SF(s_disk_reads), SF(s_disk_writes), SF(s_fix_nodes),
49516 SF(s_do_balance), SF(s_unneeded_left_neighbor),
49517 SF(s_good_search_by_key_reada), SF(s_bmaps),
49518 diff --git a/fs/reiserfs/reiserfs.h b/fs/reiserfs/reiserfs.h
49519 index 33215f5..c5d427a 100644
49520 --- a/fs/reiserfs/reiserfs.h
49521 +++ b/fs/reiserfs/reiserfs.h
49522 @@ -453,7 +453,7 @@ struct reiserfs_sb_info {
49523 /* Comment? -Hans */
49524 wait_queue_head_t s_wait;
49525 /* To be obsoleted soon by per buffer seals.. -Hans */
49526 - atomic_t s_generation_counter; // increased by one every time the
49527 + atomic_unchecked_t s_generation_counter; // increased by one every time the
49528 // tree gets re-balanced
49529 unsigned long s_properties; /* File system properties. Currently holds
49530 on-disk FS format */
49531 @@ -1978,7 +1978,7 @@ static inline loff_t max_reiserfs_offset(struct inode *inode)
49532 #define REISERFS_USER_MEM 1 /* reiserfs user memory mode */
49533
49534 #define fs_generation(s) (REISERFS_SB(s)->s_generation_counter)
49535 -#define get_generation(s) atomic_read (&fs_generation(s))
49536 +#define get_generation(s) atomic_read_unchecked (&fs_generation(s))
49537 #define FILESYSTEM_CHANGED_TB(tb) (get_generation((tb)->tb_sb) != (tb)->fs_gen)
49538 #define __fs_changed(gen,s) (gen != get_generation (s))
49539 #define fs_changed(gen,s) \
49540 diff --git a/fs/select.c b/fs/select.c
49541 index db14c78..3aae1bd 100644
49542 --- a/fs/select.c
49543 +++ b/fs/select.c
49544 @@ -20,6 +20,7 @@
49545 #include <linux/export.h>
49546 #include <linux/slab.h>
49547 #include <linux/poll.h>
49548 +#include <linux/security.h>
49549 #include <linux/personality.h> /* for STICKY_TIMEOUTS */
49550 #include <linux/file.h>
49551 #include <linux/fdtable.h>
49552 @@ -831,6 +832,7 @@ int do_sys_poll(struct pollfd __user *ufds, unsigned int nfds,
49553 struct poll_list *walk = head;
49554 unsigned long todo = nfds;
49555
49556 + gr_learn_resource(current, RLIMIT_NOFILE, nfds, 1);
49557 if (nfds > rlimit(RLIMIT_NOFILE))
49558 return -EINVAL;
49559
49560 diff --git a/fs/seq_file.c b/fs/seq_file.c
49561 index 0cbd049..64e705c 100644
49562 --- a/fs/seq_file.c
49563 +++ b/fs/seq_file.c
49564 @@ -9,6 +9,7 @@
49565 #include <linux/export.h>
49566 #include <linux/seq_file.h>
49567 #include <linux/slab.h>
49568 +#include <linux/sched.h>
49569
49570 #include <asm/uaccess.h>
49571 #include <asm/page.h>
49572 @@ -56,6 +57,9 @@ int seq_open(struct file *file, const struct seq_operations *op)
49573 memset(p, 0, sizeof(*p));
49574 mutex_init(&p->lock);
49575 p->op = op;
49576 +#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
49577 + p->exec_id = current->exec_id;
49578 +#endif
49579
49580 /*
49581 * Wrappers around seq_open(e.g. swaps_open) need to be
49582 @@ -92,7 +96,7 @@ static int traverse(struct seq_file *m, loff_t offset)
49583 return 0;
49584 }
49585 if (!m->buf) {
49586 - m->buf = kmalloc(m->size = PAGE_SIZE, GFP_KERNEL);
49587 + m->buf = kmalloc(m->size = PAGE_SIZE, GFP_KERNEL | GFP_USERCOPY);
49588 if (!m->buf)
49589 return -ENOMEM;
49590 }
49591 @@ -132,7 +136,7 @@ static int traverse(struct seq_file *m, loff_t offset)
49592 Eoverflow:
49593 m->op->stop(m, p);
49594 kfree(m->buf);
49595 - m->buf = kmalloc(m->size <<= 1, GFP_KERNEL);
49596 + m->buf = kmalloc(m->size <<= 1, GFP_KERNEL | GFP_USERCOPY);
49597 return !m->buf ? -ENOMEM : -EAGAIN;
49598 }
49599
49600 @@ -187,7 +191,7 @@ ssize_t seq_read(struct file *file, char __user *buf, size_t size, loff_t *ppos)
49601
49602 /* grab buffer if we didn't have one */
49603 if (!m->buf) {
49604 - m->buf = kmalloc(m->size = PAGE_SIZE, GFP_KERNEL);
49605 + m->buf = kmalloc(m->size = PAGE_SIZE, GFP_KERNEL | GFP_USERCOPY);
49606 if (!m->buf)
49607 goto Enomem;
49608 }
49609 @@ -228,7 +232,7 @@ ssize_t seq_read(struct file *file, char __user *buf, size_t size, loff_t *ppos)
49610 goto Fill;
49611 m->op->stop(m, p);
49612 kfree(m->buf);
49613 - m->buf = kmalloc(m->size <<= 1, GFP_KERNEL);
49614 + m->buf = kmalloc(m->size <<= 1, GFP_KERNEL | GFP_USERCOPY);
49615 if (!m->buf)
49616 goto Enomem;
49617 m->count = 0;
49618 @@ -567,7 +571,7 @@ static void single_stop(struct seq_file *p, void *v)
49619 int single_open(struct file *file, int (*show)(struct seq_file *, void *),
49620 void *data)
49621 {
49622 - struct seq_operations *op = kmalloc(sizeof(*op), GFP_KERNEL);
49623 + seq_operations_no_const *op = kmalloc(sizeof(*op), GFP_KERNEL);
49624 int res = -ENOMEM;
49625
49626 if (op) {
49627 diff --git a/fs/splice.c b/fs/splice.c
49628 index 7bf08fa..eb35c2f 100644
49629 --- a/fs/splice.c
49630 +++ b/fs/splice.c
49631 @@ -194,7 +194,7 @@ ssize_t splice_to_pipe(struct pipe_inode_info *pipe,
49632 pipe_lock(pipe);
49633
49634 for (;;) {
49635 - if (!pipe->readers) {
49636 + if (!atomic_read(&pipe->readers)) {
49637 send_sig(SIGPIPE, current, 0);
49638 if (!ret)
49639 ret = -EPIPE;
49640 @@ -248,9 +248,9 @@ ssize_t splice_to_pipe(struct pipe_inode_info *pipe,
49641 do_wakeup = 0;
49642 }
49643
49644 - pipe->waiting_writers++;
49645 + atomic_inc(&pipe->waiting_writers);
49646 pipe_wait(pipe);
49647 - pipe->waiting_writers--;
49648 + atomic_dec(&pipe->waiting_writers);
49649 }
49650
49651 pipe_unlock(pipe);
49652 @@ -563,7 +563,7 @@ static ssize_t kernel_readv(struct file *file, const struct iovec *vec,
49653 old_fs = get_fs();
49654 set_fs(get_ds());
49655 /* The cast to a user pointer is valid due to the set_fs() */
49656 - res = vfs_readv(file, (const struct iovec __user *)vec, vlen, &pos);
49657 + res = vfs_readv(file, (const struct iovec __force_user *)vec, vlen, &pos);
49658 set_fs(old_fs);
49659
49660 return res;
49661 @@ -578,7 +578,7 @@ static ssize_t kernel_write(struct file *file, const char *buf, size_t count,
49662 old_fs = get_fs();
49663 set_fs(get_ds());
49664 /* The cast to a user pointer is valid due to the set_fs() */
49665 - res = vfs_write(file, (const char __user *)buf, count, &pos);
49666 + res = vfs_write(file, (const char __force_user *)buf, count, &pos);
49667 set_fs(old_fs);
49668
49669 return res;
49670 @@ -630,7 +630,7 @@ ssize_t default_file_splice_read(struct file *in, loff_t *ppos,
49671 goto err;
49672
49673 this_len = min_t(size_t, len, PAGE_CACHE_SIZE - offset);
49674 - vec[i].iov_base = (void __user *) page_address(page);
49675 + vec[i].iov_base = (void __force_user *) page_address(page);
49676 vec[i].iov_len = this_len;
49677 spd.pages[i] = page;
49678 spd.nr_pages++;
49679 @@ -849,10 +849,10 @@ EXPORT_SYMBOL(splice_from_pipe_feed);
49680 int splice_from_pipe_next(struct pipe_inode_info *pipe, struct splice_desc *sd)
49681 {
49682 while (!pipe->nrbufs) {
49683 - if (!pipe->writers)
49684 + if (!atomic_read(&pipe->writers))
49685 return 0;
49686
49687 - if (!pipe->waiting_writers && sd->num_spliced)
49688 + if (!atomic_read(&pipe->waiting_writers) && sd->num_spliced)
49689 return 0;
49690
49691 if (sd->flags & SPLICE_F_NONBLOCK)
49692 @@ -1187,7 +1187,7 @@ ssize_t splice_direct_to_actor(struct file *in, struct splice_desc *sd,
49693 * out of the pipe right after the splice_to_pipe(). So set
49694 * PIPE_READERS appropriately.
49695 */
49696 - pipe->readers = 1;
49697 + atomic_set(&pipe->readers, 1);
49698
49699 current->splice_pipe = pipe;
49700 }
49701 @@ -1740,9 +1740,9 @@ static int ipipe_prep(struct pipe_inode_info *pipe, unsigned int flags)
49702 ret = -ERESTARTSYS;
49703 break;
49704 }
49705 - if (!pipe->writers)
49706 + if (!atomic_read(&pipe->writers))
49707 break;
49708 - if (!pipe->waiting_writers) {
49709 + if (!atomic_read(&pipe->waiting_writers)) {
49710 if (flags & SPLICE_F_NONBLOCK) {
49711 ret = -EAGAIN;
49712 break;
49713 @@ -1774,7 +1774,7 @@ static int opipe_prep(struct pipe_inode_info *pipe, unsigned int flags)
49714 pipe_lock(pipe);
49715
49716 while (pipe->nrbufs >= pipe->buffers) {
49717 - if (!pipe->readers) {
49718 + if (!atomic_read(&pipe->readers)) {
49719 send_sig(SIGPIPE, current, 0);
49720 ret = -EPIPE;
49721 break;
49722 @@ -1787,9 +1787,9 @@ static int opipe_prep(struct pipe_inode_info *pipe, unsigned int flags)
49723 ret = -ERESTARTSYS;
49724 break;
49725 }
49726 - pipe->waiting_writers++;
49727 + atomic_inc(&pipe->waiting_writers);
49728 pipe_wait(pipe);
49729 - pipe->waiting_writers--;
49730 + atomic_dec(&pipe->waiting_writers);
49731 }
49732
49733 pipe_unlock(pipe);
49734 @@ -1825,14 +1825,14 @@ retry:
49735 pipe_double_lock(ipipe, opipe);
49736
49737 do {
49738 - if (!opipe->readers) {
49739 + if (!atomic_read(&opipe->readers)) {
49740 send_sig(SIGPIPE, current, 0);
49741 if (!ret)
49742 ret = -EPIPE;
49743 break;
49744 }
49745
49746 - if (!ipipe->nrbufs && !ipipe->writers)
49747 + if (!ipipe->nrbufs && !atomic_read(&ipipe->writers))
49748 break;
49749
49750 /*
49751 @@ -1929,7 +1929,7 @@ static int link_pipe(struct pipe_inode_info *ipipe,
49752 pipe_double_lock(ipipe, opipe);
49753
49754 do {
49755 - if (!opipe->readers) {
49756 + if (!atomic_read(&opipe->readers)) {
49757 send_sig(SIGPIPE, current, 0);
49758 if (!ret)
49759 ret = -EPIPE;
49760 @@ -1974,7 +1974,7 @@ static int link_pipe(struct pipe_inode_info *ipipe,
49761 * return EAGAIN if we have the potential of some data in the
49762 * future, otherwise just return 0
49763 */
49764 - if (!ret && ipipe->waiting_writers && (flags & SPLICE_F_NONBLOCK))
49765 + if (!ret && atomic_read(&ipipe->waiting_writers) && (flags & SPLICE_F_NONBLOCK))
49766 ret = -EAGAIN;
49767
49768 pipe_unlock(ipipe);
49769 diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c
49770 index e6bb9b2..d8e3951 100644
49771 --- a/fs/sysfs/dir.c
49772 +++ b/fs/sysfs/dir.c
49773 @@ -678,6 +678,18 @@ static int create_dir(struct kobject *kobj, struct sysfs_dirent *parent_sd,
49774 struct sysfs_dirent *sd;
49775 int rc;
49776
49777 +#ifdef CONFIG_GRKERNSEC_SYSFS_RESTRICT
49778 + const char *parent_name = parent_sd->s_name;
49779 +
49780 + mode = S_IFDIR | S_IRWXU;
49781 +
49782 + if ((!strcmp(parent_name, "") && (!strcmp(name, "devices") || !strcmp(name, "fs"))) ||
49783 + (!strcmp(parent_name, "devices") && !strcmp(name, "system")) ||
49784 + (!strcmp(parent_name, "fs") && (!strcmp(name, "selinux") || !strcmp(name, "fuse"))) ||
49785 + (!strcmp(parent_name, "system") && !strcmp(name, "cpu")))
49786 + mode = S_IFDIR | S_IRWXU | S_IRUGO | S_IXUGO;
49787 +#endif
49788 +
49789 /* allocate */
49790 sd = sysfs_new_dirent(name, mode, SYSFS_DIR);
49791 if (!sd)
49792 diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
49793 index 00012e3..8392349 100644
49794 --- a/fs/sysfs/file.c
49795 +++ b/fs/sysfs/file.c
49796 @@ -37,7 +37,7 @@ static DEFINE_SPINLOCK(sysfs_open_dirent_lock);
49797
49798 struct sysfs_open_dirent {
49799 atomic_t refcnt;
49800 - atomic_t event;
49801 + atomic_unchecked_t event;
49802 wait_queue_head_t poll;
49803 struct list_head buffers; /* goes through sysfs_buffer.list */
49804 };
49805 @@ -81,7 +81,7 @@ static int fill_read_buffer(struct dentry * dentry, struct sysfs_buffer * buffer
49806 if (!sysfs_get_active(attr_sd))
49807 return -ENODEV;
49808
49809 - buffer->event = atomic_read(&attr_sd->s_attr.open->event);
49810 + buffer->event = atomic_read_unchecked(&attr_sd->s_attr.open->event);
49811 count = ops->show(kobj, attr_sd->s_attr.attr, buffer->page);
49812
49813 sysfs_put_active(attr_sd);
49814 @@ -287,7 +287,7 @@ static int sysfs_get_open_dirent(struct sysfs_dirent *sd,
49815 return -ENOMEM;
49816
49817 atomic_set(&new_od->refcnt, 0);
49818 - atomic_set(&new_od->event, 1);
49819 + atomic_set_unchecked(&new_od->event, 1);
49820 init_waitqueue_head(&new_od->poll);
49821 INIT_LIST_HEAD(&new_od->buffers);
49822 goto retry;
49823 @@ -432,7 +432,7 @@ static unsigned int sysfs_poll(struct file *filp, poll_table *wait)
49824
49825 sysfs_put_active(attr_sd);
49826
49827 - if (buffer->event != atomic_read(&od->event))
49828 + if (buffer->event != atomic_read_unchecked(&od->event))
49829 goto trigger;
49830
49831 return DEFAULT_POLLMASK;
49832 @@ -451,7 +451,7 @@ void sysfs_notify_dirent(struct sysfs_dirent *sd)
49833
49834 od = sd->s_attr.open;
49835 if (od) {
49836 - atomic_inc(&od->event);
49837 + atomic_inc_unchecked(&od->event);
49838 wake_up_interruptible(&od->poll);
49839 }
49840
49841 diff --git a/fs/sysfs/symlink.c b/fs/sysfs/symlink.c
49842 index a7ac78f..02158e1 100644
49843 --- a/fs/sysfs/symlink.c
49844 +++ b/fs/sysfs/symlink.c
49845 @@ -286,7 +286,7 @@ static void *sysfs_follow_link(struct dentry *dentry, struct nameidata *nd)
49846
49847 static void sysfs_put_link(struct dentry *dentry, struct nameidata *nd, void *cookie)
49848 {
49849 - char *page = nd_get_link(nd);
49850 + const char *page = nd_get_link(nd);
49851 if (!IS_ERR(page))
49852 free_page((unsigned long)page);
49853 }
49854 diff --git a/fs/udf/misc.c b/fs/udf/misc.c
49855 index c175b4d..8f36a16 100644
49856 --- a/fs/udf/misc.c
49857 +++ b/fs/udf/misc.c
49858 @@ -289,7 +289,7 @@ void udf_new_tag(char *data, uint16_t ident, uint16_t version, uint16_t snum,
49859
49860 u8 udf_tag_checksum(const struct tag *t)
49861 {
49862 - u8 *data = (u8 *)t;
49863 + const u8 *data = (const u8 *)t;
49864 u8 checksum = 0;
49865 int i;
49866 for (i = 0; i < sizeof(struct tag); ++i)
49867 diff --git a/fs/utimes.c b/fs/utimes.c
49868 index fa4dbe4..e12d1b9 100644
49869 --- a/fs/utimes.c
49870 +++ b/fs/utimes.c
49871 @@ -1,6 +1,7 @@
49872 #include <linux/compiler.h>
49873 #include <linux/file.h>
49874 #include <linux/fs.h>
49875 +#include <linux/security.h>
49876 #include <linux/linkage.h>
49877 #include <linux/mount.h>
49878 #include <linux/namei.h>
49879 @@ -101,6 +102,12 @@ static int utimes_common(struct path *path, struct timespec *times)
49880 goto mnt_drop_write_and_out;
49881 }
49882 }
49883 +
49884 + if (!gr_acl_handle_utime(path->dentry, path->mnt)) {
49885 + error = -EACCES;
49886 + goto mnt_drop_write_and_out;
49887 + }
49888 +
49889 mutex_lock(&inode->i_mutex);
49890 error = notify_change(path->dentry, &newattrs);
49891 mutex_unlock(&inode->i_mutex);
49892 diff --git a/fs/xattr.c b/fs/xattr.c
49893 index 1d7ac37..23cb9ec 100644
49894 --- a/fs/xattr.c
49895 +++ b/fs/xattr.c
49896 @@ -316,7 +316,7 @@ EXPORT_SYMBOL_GPL(vfs_removexattr);
49897 * Extended attribute SET operations
49898 */
49899 static long
49900 -setxattr(struct dentry *d, const char __user *name, const void __user *value,
49901 +setxattr(struct path *path, const char __user *name, const void __user *value,
49902 size_t size, int flags)
49903 {
49904 int error;
49905 @@ -349,7 +349,12 @@ setxattr(struct dentry *d, const char __user *name, const void __user *value,
49906 }
49907 }
49908
49909 - error = vfs_setxattr(d, kname, kvalue, size, flags);
49910 + if (!gr_acl_handle_setxattr(path->dentry, path->mnt)) {
49911 + error = -EACCES;
49912 + goto out;
49913 + }
49914 +
49915 + error = vfs_setxattr(path->dentry, kname, kvalue, size, flags);
49916 out:
49917 if (vvalue)
49918 vfree(vvalue);
49919 @@ -370,7 +375,7 @@ SYSCALL_DEFINE5(setxattr, const char __user *, pathname,
49920 return error;
49921 error = mnt_want_write(path.mnt);
49922 if (!error) {
49923 - error = setxattr(path.dentry, name, value, size, flags);
49924 + error = setxattr(&path, name, value, size, flags);
49925 mnt_drop_write(path.mnt);
49926 }
49927 path_put(&path);
49928 @@ -389,7 +394,7 @@ SYSCALL_DEFINE5(lsetxattr, const char __user *, pathname,
49929 return error;
49930 error = mnt_want_write(path.mnt);
49931 if (!error) {
49932 - error = setxattr(path.dentry, name, value, size, flags);
49933 + error = setxattr(&path, name, value, size, flags);
49934 mnt_drop_write(path.mnt);
49935 }
49936 path_put(&path);
49937 @@ -401,17 +406,15 @@ SYSCALL_DEFINE5(fsetxattr, int, fd, const char __user *, name,
49938 {
49939 int fput_needed;
49940 struct file *f;
49941 - struct dentry *dentry;
49942 int error = -EBADF;
49943
49944 f = fget_light(fd, &fput_needed);
49945 if (!f)
49946 return error;
49947 - dentry = f->f_path.dentry;
49948 - audit_inode(NULL, dentry);
49949 + audit_inode(NULL, f->f_path.dentry);
49950 error = mnt_want_write_file(f);
49951 if (!error) {
49952 - error = setxattr(dentry, name, value, size, flags);
49953 + error = setxattr(&f->f_path, name, value, size, flags);
49954 mnt_drop_write_file(f);
49955 }
49956 fput_light(f, fput_needed);
49957 diff --git a/fs/xattr_acl.c b/fs/xattr_acl.c
49958 index 69d06b0..c0996e5 100644
49959 --- a/fs/xattr_acl.c
49960 +++ b/fs/xattr_acl.c
49961 @@ -17,8 +17,8 @@
49962 struct posix_acl *
49963 posix_acl_from_xattr(const void *value, size_t size)
49964 {
49965 - posix_acl_xattr_header *header = (posix_acl_xattr_header *)value;
49966 - posix_acl_xattr_entry *entry = (posix_acl_xattr_entry *)(header+1), *end;
49967 + const posix_acl_xattr_header *header = (const posix_acl_xattr_header *)value;
49968 + const posix_acl_xattr_entry *entry = (const posix_acl_xattr_entry *)(header+1), *end;
49969 int count;
49970 struct posix_acl *acl;
49971 struct posix_acl_entry *acl_e;
49972 diff --git a/fs/xfs/xfs_bmap.c b/fs/xfs/xfs_bmap.c
49973 index 58b815e..595ddee 100644
49974 --- a/fs/xfs/xfs_bmap.c
49975 +++ b/fs/xfs/xfs_bmap.c
49976 @@ -189,7 +189,7 @@ xfs_bmap_validate_ret(
49977 int nmap,
49978 int ret_nmap);
49979 #else
49980 -#define xfs_bmap_validate_ret(bno,len,flags,mval,onmap,nmap)
49981 +#define xfs_bmap_validate_ret(bno,len,flags,mval,onmap,nmap) do {} while (0)
49982 #endif /* DEBUG */
49983
49984 STATIC int
49985 diff --git a/fs/xfs/xfs_dir2_sf.c b/fs/xfs/xfs_dir2_sf.c
49986 index 19bf0c5..9f26b02 100644
49987 --- a/fs/xfs/xfs_dir2_sf.c
49988 +++ b/fs/xfs/xfs_dir2_sf.c
49989 @@ -851,7 +851,15 @@ xfs_dir2_sf_getdents(
49990 }
49991
49992 ino = xfs_dir2_sfe_get_ino(sfp, sfep);
49993 - if (filldir(dirent, (char *)sfep->name, sfep->namelen,
49994 + if (dp->i_df.if_u1.if_data == dp->i_df.if_u2.if_inline_data) {
49995 + char name[sfep->namelen];
49996 + memcpy(name, sfep->name, sfep->namelen);
49997 + if (filldir(dirent, name, sfep->namelen,
49998 + off & 0x7fffffff, ino, DT_UNKNOWN)) {
49999 + *offset = off & 0x7fffffff;
50000 + return 0;
50001 + }
50002 + } else if (filldir(dirent, (char *)sfep->name, sfep->namelen,
50003 off & 0x7fffffff, ino, DT_UNKNOWN)) {
50004 *offset = off & 0x7fffffff;
50005 return 0;
50006 diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c
50007 index 3a05a41..320bec6 100644
50008 --- a/fs/xfs/xfs_ioctl.c
50009 +++ b/fs/xfs/xfs_ioctl.c
50010 @@ -126,7 +126,7 @@ xfs_find_handle(
50011 }
50012
50013 error = -EFAULT;
50014 - if (copy_to_user(hreq->ohandle, &handle, hsize) ||
50015 + if (hsize > sizeof handle || copy_to_user(hreq->ohandle, &handle, hsize) ||
50016 copy_to_user(hreq->ohandlen, &hsize, sizeof(__s32)))
50017 goto out_put;
50018
50019 diff --git a/fs/xfs/xfs_iops.c b/fs/xfs/xfs_iops.c
50020 index 1a25fd8..e935581 100644
50021 --- a/fs/xfs/xfs_iops.c
50022 +++ b/fs/xfs/xfs_iops.c
50023 @@ -394,7 +394,7 @@ xfs_vn_put_link(
50024 struct nameidata *nd,
50025 void *p)
50026 {
50027 - char *s = nd_get_link(nd);
50028 + const char *s = nd_get_link(nd);
50029
50030 if (!IS_ERR(s))
50031 kfree(s);
50032 diff --git a/grsecurity/Kconfig b/grsecurity/Kconfig
50033 new file mode 100644
50034 index 0000000..4d533f1
50035 --- /dev/null
50036 +++ b/grsecurity/Kconfig
50037 @@ -0,0 +1,941 @@
50038 +#
50039 +# grecurity configuration
50040 +#
50041 +menu "Memory Protections"
50042 +depends on GRKERNSEC
50043 +
50044 +config GRKERNSEC_KMEM
50045 + bool "Deny reading/writing to /dev/kmem, /dev/mem, and /dev/port"
50046 + default y if GRKERNSEC_CONFIG_AUTO
50047 + select STRICT_DEVMEM if (X86 || ARM || TILE || S390)
50048 + help
50049 + If you say Y here, /dev/kmem and /dev/mem won't be allowed to
50050 + be written to or read from to modify or leak the contents of the running
50051 + kernel. /dev/port will also not be allowed to be opened. If you have module
50052 + support disabled, enabling this will close up four ways that are
50053 + currently used to insert malicious code into the running kernel.
50054 + Even with all these features enabled, we still highly recommend that
50055 + you use the RBAC system, as it is still possible for an attacker to
50056 + modify the running kernel through privileged I/O granted by ioperm/iopl.
50057 + If you are not using XFree86, you may be able to stop this additional
50058 + case by enabling the 'Disable privileged I/O' option. Though nothing
50059 + legitimately writes to /dev/kmem, XFree86 does need to write to /dev/mem,
50060 + but only to video memory, which is the only writing we allow in this
50061 + case. If /dev/kmem or /dev/mem are mmaped without PROT_WRITE, they will
50062 + not be allowed to mprotect it with PROT_WRITE later.
50063 + It is highly recommended that you say Y here if you meet all the
50064 + conditions above.
50065 +
50066 +config GRKERNSEC_VM86
50067 + bool "Restrict VM86 mode"
50068 + default y if (GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_SERVER)
50069 + depends on X86_32
50070 +
50071 + help
50072 + If you say Y here, only processes with CAP_SYS_RAWIO will be able to
50073 + make use of a special execution mode on 32bit x86 processors called
50074 + Virtual 8086 (VM86) mode. XFree86 may need vm86 mode for certain
50075 + video cards and will still work with this option enabled. The purpose
50076 + of the option is to prevent exploitation of emulation errors in
50077 + virtualization of vm86 mode like the one discovered in VMWare in 2009.
50078 + Nearly all users should be able to enable this option.
50079 +
50080 +config GRKERNSEC_IO
50081 + bool "Disable privileged I/O"
50082 + default y if (GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_SERVER)
50083 + depends on X86
50084 + select RTC_CLASS
50085 + select RTC_INTF_DEV
50086 + select RTC_DRV_CMOS
50087 +
50088 + help
50089 + If you say Y here, all ioperm and iopl calls will return an error.
50090 + Ioperm and iopl can be used to modify the running kernel.
50091 + Unfortunately, some programs need this access to operate properly,
50092 + the most notable of which are XFree86 and hwclock. hwclock can be
50093 + remedied by having RTC support in the kernel, so real-time
50094 + clock support is enabled if this option is enabled, to ensure
50095 + that hwclock operates correctly. XFree86 still will not
50096 + operate correctly with this option enabled, so DO NOT CHOOSE Y
50097 + IF YOU USE XFree86. If you use XFree86 and you still want to
50098 + protect your kernel against modification, use the RBAC system.
50099 +
50100 +config GRKERNSEC_PROC_MEMMAP
50101 + bool "Harden ASLR against information leaks and entropy reduction"
50102 + default y if (GRKERNSEC_CONFIG_AUTO || PAX_NOEXEC || PAX_ASLR)
50103 + depends on PAX_NOEXEC || PAX_ASLR
50104 + help
50105 + If you say Y here, the /proc/<pid>/maps and /proc/<pid>/stat files will
50106 + give no information about the addresses of its mappings if
50107 + PaX features that rely on random addresses are enabled on the task.
50108 + In addition to sanitizing this information and disabling other
50109 + dangerous sources of information, this option causes reads of sensitive
50110 + /proc/<pid> entries where the file descriptor was opened in a different
50111 + task than the one performing the read. Such attempts are logged.
50112 + This option also limits argv/env strings for suid/sgid binaries
50113 + to 512KB to prevent a complete exhaustion of the stack entropy provided
50114 + by ASLR. Finally, it places an 8MB stack resource limit on suid/sgid
50115 + binaries to prevent alternative mmap layouts from being abused.
50116 +
50117 + If you use PaX it is essential that you say Y here as it closes up
50118 + several holes that make full ASLR useless locally.
50119 +
50120 +config GRKERNSEC_BRUTE
50121 + bool "Deter exploit bruteforcing"
50122 + default y if GRKERNSEC_CONFIG_AUTO
50123 + help
50124 + If you say Y here, attempts to bruteforce exploits against forking
50125 + daemons such as apache or sshd, as well as against suid/sgid binaries
50126 + will be deterred. When a child of a forking daemon is killed by PaX
50127 + or crashes due to an illegal instruction or other suspicious signal,
50128 + the parent process will be delayed 30 seconds upon every subsequent
50129 + fork until the administrator is able to assess the situation and
50130 + restart the daemon.
50131 + In the suid/sgid case, the attempt is logged, the user has all their
50132 + processes terminated, and they are prevented from executing any further
50133 + processes for 15 minutes.
50134 + It is recommended that you also enable signal logging in the auditing
50135 + section so that logs are generated when a process triggers a suspicious
50136 + signal.
50137 + If the sysctl option is enabled, a sysctl option with name
50138 + "deter_bruteforce" is created.
50139 +
50140 +
50141 +config GRKERNSEC_MODHARDEN
50142 + bool "Harden module auto-loading"
50143 + default y if GRKERNSEC_CONFIG_AUTO
50144 + depends on MODULES
50145 + help
50146 + If you say Y here, module auto-loading in response to use of some
50147 + feature implemented by an unloaded module will be restricted to
50148 + root users. Enabling this option helps defend against attacks
50149 + by unprivileged users who abuse the auto-loading behavior to
50150 + cause a vulnerable module to load that is then exploited.
50151 +
50152 + If this option prevents a legitimate use of auto-loading for a
50153 + non-root user, the administrator can execute modprobe manually
50154 + with the exact name of the module mentioned in the alert log.
50155 + Alternatively, the administrator can add the module to the list
50156 + of modules loaded at boot by modifying init scripts.
50157 +
50158 + Modification of init scripts will most likely be needed on
50159 + Ubuntu servers with encrypted home directory support enabled,
50160 + as the first non-root user logging in will cause the ecb(aes),
50161 + ecb(aes)-all, cbc(aes), and cbc(aes)-all modules to be loaded.
50162 +
50163 +config GRKERNSEC_HIDESYM
50164 + bool "Hide kernel symbols"
50165 + default y if GRKERNSEC_CONFIG_AUTO
50166 + select PAX_USERCOPY_SLABS
50167 + help
50168 + If you say Y here, getting information on loaded modules, and
50169 + displaying all kernel symbols through a syscall will be restricted
50170 + to users with CAP_SYS_MODULE. For software compatibility reasons,
50171 + /proc/kallsyms will be restricted to the root user. The RBAC
50172 + system can hide that entry even from root.
50173 +
50174 + This option also prevents leaking of kernel addresses through
50175 + several /proc entries.
50176 +
50177 + Note that this option is only effective provided the following
50178 + conditions are met:
50179 + 1) The kernel using grsecurity is not precompiled by some distribution
50180 + 2) You have also enabled GRKERNSEC_DMESG
50181 + 3) You are using the RBAC system and hiding other files such as your
50182 + kernel image and System.map. Alternatively, enabling this option
50183 + causes the permissions on /boot, /lib/modules, and the kernel
50184 + source directory to change at compile time to prevent
50185 + reading by non-root users.
50186 + If the above conditions are met, this option will aid in providing a
50187 + useful protection against local kernel exploitation of overflows
50188 + and arbitrary read/write vulnerabilities.
50189 +
50190 +config GRKERNSEC_KERN_LOCKOUT
50191 + bool "Active kernel exploit response"
50192 + default y if GRKERNSEC_CONFIG_AUTO
50193 + depends on X86 || ARM || PPC || SPARC
50194 + help
50195 + If you say Y here, when a PaX alert is triggered due to suspicious
50196 + activity in the kernel (from KERNEXEC/UDEREF/USERCOPY)
50197 + or an OOPS occurs due to bad memory accesses, instead of just
50198 + terminating the offending process (and potentially allowing
50199 + a subsequent exploit from the same user), we will take one of two
50200 + actions:
50201 + If the user was root, we will panic the system
50202 + If the user was non-root, we will log the attempt, terminate
50203 + all processes owned by the user, then prevent them from creating
50204 + any new processes until the system is restarted
50205 + This deters repeated kernel exploitation/bruteforcing attempts
50206 + and is useful for later forensics.
50207 +
50208 +endmenu
50209 +menu "Role Based Access Control Options"
50210 +depends on GRKERNSEC
50211 +
50212 +config GRKERNSEC_RBAC_DEBUG
50213 + bool
50214 +
50215 +config GRKERNSEC_NO_RBAC
50216 + bool "Disable RBAC system"
50217 + help
50218 + If you say Y here, the /dev/grsec device will be removed from the kernel,
50219 + preventing the RBAC system from being enabled. You should only say Y
50220 + here if you have no intention of using the RBAC system, so as to prevent
50221 + an attacker with root access from misusing the RBAC system to hide files
50222 + and processes when loadable module support and /dev/[k]mem have been
50223 + locked down.
50224 +
50225 +config GRKERNSEC_ACL_HIDEKERN
50226 + bool "Hide kernel processes"
50227 + help
50228 + If you say Y here, all kernel threads will be hidden to all
50229 + processes but those whose subject has the "view hidden processes"
50230 + flag.
50231 +
50232 +config GRKERNSEC_ACL_MAXTRIES
50233 + int "Maximum tries before password lockout"
50234 + default 3
50235 + help
50236 + This option enforces the maximum number of times a user can attempt
50237 + to authorize themselves with the grsecurity RBAC system before being
50238 + denied the ability to attempt authorization again for a specified time.
50239 + The lower the number, the harder it will be to brute-force a password.
50240 +
50241 +config GRKERNSEC_ACL_TIMEOUT
50242 + int "Time to wait after max password tries, in seconds"
50243 + default 30
50244 + help
50245 + This option specifies the time the user must wait after attempting to
50246 + authorize to the RBAC system with the maximum number of invalid
50247 + passwords. The higher the number, the harder it will be to brute-force
50248 + a password.
50249 +
50250 +endmenu
50251 +menu "Filesystem Protections"
50252 +depends on GRKERNSEC
50253 +
50254 +config GRKERNSEC_PROC
50255 + bool "Proc restrictions"
50256 + default y if GRKERNSEC_CONFIG_AUTO
50257 + help
50258 + If you say Y here, the permissions of the /proc filesystem
50259 + will be altered to enhance system security and privacy. You MUST
50260 + choose either a user only restriction or a user and group restriction.
50261 + Depending upon the option you choose, you can either restrict users to
50262 + see only the processes they themselves run, or choose a group that can
50263 + view all processes and files normally restricted to root if you choose
50264 + the "restrict to user only" option. NOTE: If you're running identd or
50265 + ntpd as a non-root user, you will have to run it as the group you
50266 + specify here.
50267 +
50268 +config GRKERNSEC_PROC_USER
50269 + bool "Restrict /proc to user only"
50270 + depends on GRKERNSEC_PROC
50271 + help
50272 + If you say Y here, non-root users will only be able to view their own
50273 + processes, and restricts them from viewing network-related information,
50274 + and viewing kernel symbol and module information.
50275 +
50276 +config GRKERNSEC_PROC_USERGROUP
50277 + bool "Allow special group"
50278 + default y if GRKERNSEC_CONFIG_AUTO
50279 + depends on GRKERNSEC_PROC && !GRKERNSEC_PROC_USER
50280 + help
50281 + If you say Y here, you will be able to select a group that will be
50282 + able to view all processes and network-related information. If you've
50283 + enabled GRKERNSEC_HIDESYM, kernel and symbol information may still
50284 + remain hidden. This option is useful if you want to run identd as
50285 + a non-root user.
50286 +
50287 +config GRKERNSEC_PROC_GID
50288 + int "GID for special group"
50289 + depends on GRKERNSEC_PROC_USERGROUP
50290 + default 1001
50291 +
50292 +config GRKERNSEC_PROC_ADD
50293 + bool "Additional restrictions"
50294 + default y if GRKERNSEC_CONFIG_AUTO
50295 + depends on GRKERNSEC_PROC_USER || GRKERNSEC_PROC_USERGROUP
50296 + help
50297 + If you say Y here, additional restrictions will be placed on
50298 + /proc that keep normal users from viewing device information and
50299 + slabinfo information that could be useful for exploits.
50300 +
50301 +config GRKERNSEC_LINK
50302 + bool "Linking restrictions"
50303 + default y if GRKERNSEC_CONFIG_AUTO
50304 + help
50305 + If you say Y here, /tmp race exploits will be prevented, since users
50306 + will no longer be able to follow symlinks owned by other users in
50307 + world-writable +t directories (e.g. /tmp), unless the owner of the
50308 + symlink is the owner of the directory. users will also not be
50309 + able to hardlink to files they do not own. If the sysctl option is
50310 + enabled, a sysctl option with name "linking_restrictions" is created.
50311 +
50312 +config GRKERNSEC_SYMLINKOWN
50313 + bool "Kernel-enforced SymlinksIfOwnerMatch"
50314 + default y if GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_SERVER
50315 + help
50316 + Apache's SymlinksIfOwnerMatch option has an inherent race condition
50317 + that prevents it from being used as a security feature. As Apache
50318 + verifies the symlink by performing a stat() against the target of
50319 + the symlink before it is followed, an attacker can setup a symlink
50320 + to point to a same-owned file, then replace the symlink with one
50321 + that targets another user's file just after Apache "validates" the
50322 + symlink -- a classic TOCTOU race. If you say Y here, a complete,
50323 + race-free replacement for Apache's "SymlinksIfOwnerMatch" option
50324 + will be in place for the group you specify. If the sysctl option
50325 + is enabled, a sysctl option with name "enforce_symlinksifowner" is
50326 + created.
50327 +
50328 +config GRKERNSEC_SYMLINKOWN_GID
50329 + int "GID for users with kernel-enforced SymlinksIfOwnerMatch"
50330 + depends on GRKERNSEC_SYMLINKOWN
50331 + default 1006
50332 + help
50333 + Setting this GID determines what group kernel-enforced
50334 + SymlinksIfOwnerMatch will be enabled for. If the sysctl option
50335 + is enabled, a sysctl option with name "symlinkown_gid" is created.
50336 +
50337 +config GRKERNSEC_FIFO
50338 + bool "FIFO restrictions"
50339 + default y if GRKERNSEC_CONFIG_AUTO
50340 + help
50341 + If you say Y here, users will not be able to write to FIFOs they don't
50342 + own in world-writable +t directories (e.g. /tmp), unless the owner of
50343 + the FIFO is the same owner of the directory it's held in. If the sysctl
50344 + option is enabled, a sysctl option with name "fifo_restrictions" is
50345 + created.
50346 +
50347 +config GRKERNSEC_SYSFS_RESTRICT
50348 + bool "Sysfs/debugfs restriction"
50349 + default y if (GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_SERVER)
50350 + depends on SYSFS
50351 + help
50352 + If you say Y here, sysfs (the pseudo-filesystem mounted at /sys) and
50353 + any filesystem normally mounted under it (e.g. debugfs) will be
50354 + mostly accessible only by root. These filesystems generally provide access
50355 + to hardware and debug information that isn't appropriate for unprivileged
50356 + users of the system. Sysfs and debugfs have also become a large source
50357 + of new vulnerabilities, ranging from infoleaks to local compromise.
50358 + There has been very little oversight with an eye toward security involved
50359 + in adding new exporters of information to these filesystems, so their
50360 + use is discouraged.
50361 + For reasons of compatibility, a few directories have been whitelisted
50362 + for access by non-root users:
50363 + /sys/fs/selinux
50364 + /sys/fs/fuse
50365 + /sys/devices/system/cpu
50366 +
50367 +config GRKERNSEC_ROFS
50368 + bool "Runtime read-only mount protection"
50369 + help
50370 + If you say Y here, a sysctl option with name "romount_protect" will
50371 + be created. By setting this option to 1 at runtime, filesystems
50372 + will be protected in the following ways:
50373 + * No new writable mounts will be allowed
50374 + * Existing read-only mounts won't be able to be remounted read/write
50375 + * Write operations will be denied on all block devices
50376 + This option acts independently of grsec_lock: once it is set to 1,
50377 + it cannot be turned off. Therefore, please be mindful of the resulting
50378 + behavior if this option is enabled in an init script on a read-only
50379 + filesystem. This feature is mainly intended for secure embedded systems.
50380 +
50381 +config GRKERNSEC_CHROOT
50382 + bool "Chroot jail restrictions"
50383 + default y if GRKERNSEC_CONFIG_AUTO
50384 + help
50385 + If you say Y here, you will be able to choose several options that will
50386 + make breaking out of a chrooted jail much more difficult. If you
50387 + encounter no software incompatibilities with the following options, it
50388 + is recommended that you enable each one.
50389 +
50390 +config GRKERNSEC_CHROOT_MOUNT
50391 + bool "Deny mounts"
50392 + default y if GRKERNSEC_CONFIG_AUTO
50393 + depends on GRKERNSEC_CHROOT
50394 + help
50395 + If you say Y here, processes inside a chroot will not be able to
50396 + mount or remount filesystems. If the sysctl option is enabled, a
50397 + sysctl option with name "chroot_deny_mount" is created.
50398 +
50399 +config GRKERNSEC_CHROOT_DOUBLE
50400 + bool "Deny double-chroots"
50401 + default y if GRKERNSEC_CONFIG_AUTO
50402 + depends on GRKERNSEC_CHROOT
50403 + help
50404 + If you say Y here, processes inside a chroot will not be able to chroot
50405 + again outside the chroot. This is a widely used method of breaking
50406 + out of a chroot jail and should not be allowed. If the sysctl
50407 + option is enabled, a sysctl option with name
50408 + "chroot_deny_chroot" is created.
50409 +
50410 +config GRKERNSEC_CHROOT_PIVOT
50411 + bool "Deny pivot_root in chroot"
50412 + default y if GRKERNSEC_CONFIG_AUTO
50413 + depends on GRKERNSEC_CHROOT
50414 + help
50415 + If you say Y here, processes inside a chroot will not be able to use
50416 + a function called pivot_root() that was introduced in Linux 2.3.41. It
50417 + works similar to chroot in that it changes the root filesystem. This
50418 + function could be misused in a chrooted process to attempt to break out
50419 + of the chroot, and therefore should not be allowed. If the sysctl
50420 + option is enabled, a sysctl option with name "chroot_deny_pivot" is
50421 + created.
50422 +
50423 +config GRKERNSEC_CHROOT_CHDIR
50424 + bool "Enforce chdir(\"/\") on all chroots"
50425 + default y if GRKERNSEC_CONFIG_AUTO
50426 + depends on GRKERNSEC_CHROOT
50427 + help
50428 + If you say Y here, the current working directory of all newly-chrooted
50429 + applications will be set to the the root directory of the chroot.
50430 + The man page on chroot(2) states:
50431 + Note that this call does not change the current working
50432 + directory, so that `.' can be outside the tree rooted at
50433 + `/'. In particular, the super-user can escape from a
50434 + `chroot jail' by doing `mkdir foo; chroot foo; cd ..'.
50435 +
50436 + It is recommended that you say Y here, since it's not known to break
50437 + any software. If the sysctl option is enabled, a sysctl option with
50438 + name "chroot_enforce_chdir" is created.
50439 +
50440 +config GRKERNSEC_CHROOT_CHMOD
50441 + bool "Deny (f)chmod +s"
50442 + default y if GRKERNSEC_CONFIG_AUTO
50443 + depends on GRKERNSEC_CHROOT
50444 + help
50445 + If you say Y here, processes inside a chroot will not be able to chmod
50446 + or fchmod files to make them have suid or sgid bits. This protects
50447 + against another published method of breaking a chroot. If the sysctl
50448 + option is enabled, a sysctl option with name "chroot_deny_chmod" is
50449 + created.
50450 +
50451 +config GRKERNSEC_CHROOT_FCHDIR
50452 + bool "Deny fchdir out of chroot"
50453 + default y if GRKERNSEC_CONFIG_AUTO
50454 + depends on GRKERNSEC_CHROOT
50455 + help
50456 + If you say Y here, a well-known method of breaking chroots by fchdir'ing
50457 + to a file descriptor of the chrooting process that points to a directory
50458 + outside the filesystem will be stopped. If the sysctl option
50459 + is enabled, a sysctl option with name "chroot_deny_fchdir" is created.
50460 +
50461 +config GRKERNSEC_CHROOT_MKNOD
50462 + bool "Deny mknod"
50463 + default y if GRKERNSEC_CONFIG_AUTO
50464 + depends on GRKERNSEC_CHROOT
50465 + help
50466 + If you say Y here, processes inside a chroot will not be allowed to
50467 + mknod. The problem with using mknod inside a chroot is that it
50468 + would allow an attacker to create a device entry that is the same
50469 + as one on the physical root of your system, which could range from
50470 + anything from the console device to a device for your harddrive (which
50471 + they could then use to wipe the drive or steal data). It is recommended
50472 + that you say Y here, unless you run into software incompatibilities.
50473 + If the sysctl option is enabled, a sysctl option with name
50474 + "chroot_deny_mknod" is created.
50475 +
50476 +config GRKERNSEC_CHROOT_SHMAT
50477 + bool "Deny shmat() out of chroot"
50478 + default y if GRKERNSEC_CONFIG_AUTO
50479 + depends on GRKERNSEC_CHROOT
50480 + help
50481 + If you say Y here, processes inside a chroot will not be able to attach
50482 + to shared memory segments that were created outside of the chroot jail.
50483 + It is recommended that you say Y here. If the sysctl option is enabled,
50484 + a sysctl option with name "chroot_deny_shmat" is created.
50485 +
50486 +config GRKERNSEC_CHROOT_UNIX
50487 + bool "Deny access to abstract AF_UNIX sockets out of chroot"
50488 + default y if GRKERNSEC_CONFIG_AUTO
50489 + depends on GRKERNSEC_CHROOT
50490 + help
50491 + If you say Y here, processes inside a chroot will not be able to
50492 + connect to abstract (meaning not belonging to a filesystem) Unix
50493 + domain sockets that were bound outside of a chroot. It is recommended
50494 + that you say Y here. If the sysctl option is enabled, a sysctl option
50495 + with name "chroot_deny_unix" is created.
50496 +
50497 +config GRKERNSEC_CHROOT_FINDTASK
50498 + bool "Protect outside processes"
50499 + default y if GRKERNSEC_CONFIG_AUTO
50500 + depends on GRKERNSEC_CHROOT
50501 + help
50502 + If you say Y here, processes inside a chroot will not be able to
50503 + kill, send signals with fcntl, ptrace, capget, getpgid, setpgid,
50504 + getsid, or view any process outside of the chroot. If the sysctl
50505 + option is enabled, a sysctl option with name "chroot_findtask" is
50506 + created.
50507 +
50508 +config GRKERNSEC_CHROOT_NICE
50509 + bool "Restrict priority changes"
50510 + default y if GRKERNSEC_CONFIG_AUTO
50511 + depends on GRKERNSEC_CHROOT
50512 + help
50513 + If you say Y here, processes inside a chroot will not be able to raise
50514 + the priority of processes in the chroot, or alter the priority of
50515 + processes outside the chroot. This provides more security than simply
50516 + removing CAP_SYS_NICE from the process' capability set. If the
50517 + sysctl option is enabled, a sysctl option with name "chroot_restrict_nice"
50518 + is created.
50519 +
50520 +config GRKERNSEC_CHROOT_SYSCTL
50521 + bool "Deny sysctl writes"
50522 + default y if GRKERNSEC_CONFIG_AUTO
50523 + depends on GRKERNSEC_CHROOT
50524 + help
50525 + If you say Y here, an attacker in a chroot will not be able to
50526 + write to sysctl entries, either by sysctl(2) or through a /proc
50527 + interface. It is strongly recommended that you say Y here. If the
50528 + sysctl option is enabled, a sysctl option with name
50529 + "chroot_deny_sysctl" is created.
50530 +
50531 +config GRKERNSEC_CHROOT_CAPS
50532 + bool "Capability restrictions"
50533 + default y if GRKERNSEC_CONFIG_AUTO
50534 + depends on GRKERNSEC_CHROOT
50535 + help
50536 + If you say Y here, the capabilities on all processes within a
50537 + chroot jail will be lowered to stop module insertion, raw i/o,
50538 + system and net admin tasks, rebooting the system, modifying immutable
50539 + files, modifying IPC owned by another, and changing the system time.
50540 + This is left an option because it can break some apps. Disable this
50541 + if your chrooted apps are having problems performing those kinds of
50542 + tasks. If the sysctl option is enabled, a sysctl option with
50543 + name "chroot_caps" is created.
50544 +
50545 +endmenu
50546 +menu "Kernel Auditing"
50547 +depends on GRKERNSEC
50548 +
50549 +config GRKERNSEC_AUDIT_GROUP
50550 + bool "Single group for auditing"
50551 + help
50552 + If you say Y here, the exec, chdir, and (un)mount logging features
50553 + will only operate on a group you specify. This option is recommended
50554 + if you only want to watch certain users instead of having a large
50555 + amount of logs from the entire system. If the sysctl option is enabled,
50556 + a sysctl option with name "audit_group" is created.
50557 +
50558 +config GRKERNSEC_AUDIT_GID
50559 + int "GID for auditing"
50560 + depends on GRKERNSEC_AUDIT_GROUP
50561 + default 1007
50562 +
50563 +config GRKERNSEC_EXECLOG
50564 + bool "Exec logging"
50565 + help
50566 + If you say Y here, all execve() calls will be logged (since the
50567 + other exec*() calls are frontends to execve(), all execution
50568 + will be logged). Useful for shell-servers that like to keep track
50569 + of their users. If the sysctl option is enabled, a sysctl option with
50570 + name "exec_logging" is created.
50571 + WARNING: This option when enabled will produce a LOT of logs, especially
50572 + on an active system.
50573 +
50574 +config GRKERNSEC_RESLOG
50575 + bool "Resource logging"
50576 + default y if GRKERNSEC_CONFIG_AUTO
50577 + help
50578 + If you say Y here, all attempts to overstep resource limits will
50579 + be logged with the resource name, the requested size, and the current
50580 + limit. It is highly recommended that you say Y here. If the sysctl
50581 + option is enabled, a sysctl option with name "resource_logging" is
50582 + created. If the RBAC system is enabled, the sysctl value is ignored.
50583 +
50584 +config GRKERNSEC_CHROOT_EXECLOG
50585 + bool "Log execs within chroot"
50586 + help
50587 + If you say Y here, all executions inside a chroot jail will be logged
50588 + to syslog. This can cause a large amount of logs if certain
50589 + applications (eg. djb's daemontools) are installed on the system, and
50590 + is therefore left as an option. If the sysctl option is enabled, a
50591 + sysctl option with name "chroot_execlog" is created.
50592 +
50593 +config GRKERNSEC_AUDIT_PTRACE
50594 + bool "Ptrace logging"
50595 + help
50596 + If you say Y here, all attempts to attach to a process via ptrace
50597 + will be logged. If the sysctl option is enabled, a sysctl option
50598 + with name "audit_ptrace" is created.
50599 +
50600 +config GRKERNSEC_AUDIT_CHDIR
50601 + bool "Chdir logging"
50602 + help
50603 + If you say Y here, all chdir() calls will be logged. If the sysctl
50604 + option is enabled, a sysctl option with name "audit_chdir" is created.
50605 +
50606 +config GRKERNSEC_AUDIT_MOUNT
50607 + bool "(Un)Mount logging"
50608 + help
50609 + If you say Y here, all mounts and unmounts will be logged. If the
50610 + sysctl option is enabled, a sysctl option with name "audit_mount" is
50611 + created.
50612 +
50613 +config GRKERNSEC_SIGNAL
50614 + bool "Signal logging"
50615 + default y if GRKERNSEC_CONFIG_AUTO
50616 + help
50617 + If you say Y here, certain important signals will be logged, such as
50618 + SIGSEGV, which will as a result inform you of when a error in a program
50619 + occurred, which in some cases could mean a possible exploit attempt.
50620 + If the sysctl option is enabled, a sysctl option with name
50621 + "signal_logging" is created.
50622 +
50623 +config GRKERNSEC_FORKFAIL
50624 + bool "Fork failure logging"
50625 + help
50626 + If you say Y here, all failed fork() attempts will be logged.
50627 + This could suggest a fork bomb, or someone attempting to overstep
50628 + their process limit. If the sysctl option is enabled, a sysctl option
50629 + with name "forkfail_logging" is created.
50630 +
50631 +config GRKERNSEC_TIME
50632 + bool "Time change logging"
50633 + default y if GRKERNSEC_CONFIG_AUTO
50634 + help
50635 + If you say Y here, any changes of the system clock will be logged.
50636 + If the sysctl option is enabled, a sysctl option with name
50637 + "timechange_logging" is created.
50638 +
50639 +config GRKERNSEC_PROC_IPADDR
50640 + bool "/proc/<pid>/ipaddr support"
50641 + default y if GRKERNSEC_CONFIG_AUTO
50642 + help
50643 + If you say Y here, a new entry will be added to each /proc/<pid>
50644 + directory that contains the IP address of the person using the task.
50645 + The IP is carried across local TCP and AF_UNIX stream sockets.
50646 + This information can be useful for IDS/IPSes to perform remote response
50647 + to a local attack. The entry is readable by only the owner of the
50648 + process (and root if he has CAP_DAC_OVERRIDE, which can be removed via
50649 + the RBAC system), and thus does not create privacy concerns.
50650 +
50651 +config GRKERNSEC_RWXMAP_LOG
50652 + bool 'Denied RWX mmap/mprotect logging'
50653 + default y if GRKERNSEC_CONFIG_AUTO
50654 + depends on PAX_MPROTECT && !PAX_EMUPLT && !PAX_EMUSIGRT
50655 + help
50656 + If you say Y here, calls to mmap() and mprotect() with explicit
50657 + usage of PROT_WRITE and PROT_EXEC together will be logged when
50658 + denied by the PAX_MPROTECT feature. If the sysctl option is
50659 + enabled, a sysctl option with name "rwxmap_logging" is created.
50660 +
50661 +config GRKERNSEC_AUDIT_TEXTREL
50662 + bool 'ELF text relocations logging (READ HELP)'
50663 + depends on PAX_MPROTECT
50664 + help
50665 + If you say Y here, text relocations will be logged with the filename
50666 + of the offending library or binary. The purpose of the feature is
50667 + to help Linux distribution developers get rid of libraries and
50668 + binaries that need text relocations which hinder the future progress
50669 + of PaX. Only Linux distribution developers should say Y here, and
50670 + never on a production machine, as this option creates an information
50671 + leak that could aid an attacker in defeating the randomization of
50672 + a single memory region. If the sysctl option is enabled, a sysctl
50673 + option with name "audit_textrel" is created.
50674 +
50675 +endmenu
50676 +
50677 +menu "Executable Protections"
50678 +depends on GRKERNSEC
50679 +
50680 +config GRKERNSEC_DMESG
50681 + bool "Dmesg(8) restriction"
50682 + default y if GRKERNSEC_CONFIG_AUTO
50683 + help
50684 + If you say Y here, non-root users will not be able to use dmesg(8)
50685 + to view up to the last 4kb of messages in the kernel's log buffer.
50686 + The kernel's log buffer often contains kernel addresses and other
50687 + identifying information useful to an attacker in fingerprinting a
50688 + system for a targeted exploit.
50689 + If the sysctl option is enabled, a sysctl option with name "dmesg" is
50690 + created.
50691 +
50692 +config GRKERNSEC_HARDEN_PTRACE
50693 + bool "Deter ptrace-based process snooping"
50694 + default y if GRKERNSEC_CONFIG_AUTO
50695 + help
50696 + If you say Y here, TTY sniffers and other malicious monitoring
50697 + programs implemented through ptrace will be defeated. If you
50698 + have been using the RBAC system, this option has already been
50699 + enabled for several years for all users, with the ability to make
50700 + fine-grained exceptions.
50701 +
50702 + This option only affects the ability of non-root users to ptrace
50703 + processes that are not a descendent of the ptracing process.
50704 + This means that strace ./binary and gdb ./binary will still work,
50705 + but attaching to arbitrary processes will not. If the sysctl
50706 + option is enabled, a sysctl option with name "harden_ptrace" is
50707 + created.
50708 +
50709 +config GRKERNSEC_PTRACE_READEXEC
50710 + bool "Require read access to ptrace sensitive binaries"
50711 + default y if GRKERNSEC_CONFIG_AUTO
50712 + help
50713 + If you say Y here, unprivileged users will not be able to ptrace unreadable
50714 + binaries. This option is useful in environments that
50715 + remove the read bits (e.g. file mode 4711) from suid binaries to
50716 + prevent infoleaking of their contents. This option adds
50717 + consistency to the use of that file mode, as the binary could normally
50718 + be read out when run without privileges while ptracing.
50719 +
50720 + If the sysctl option is enabled, a sysctl option with name "ptrace_readexec"
50721 + is created.
50722 +
50723 +config GRKERNSEC_SETXID
50724 + bool "Enforce consistent multithreaded privileges"
50725 + default y if GRKERNSEC_CONFIG_AUTO
50726 + depends on (X86 || SPARC64 || PPC || ARM || MIPS)
50727 + help
50728 + If you say Y here, a change from a root uid to a non-root uid
50729 + in a multithreaded application will cause the resulting uids,
50730 + gids, supplementary groups, and capabilities in that thread
50731 + to be propagated to the other threads of the process. In most
50732 + cases this is unnecessary, as glibc will emulate this behavior
50733 + on behalf of the application. Other libcs do not act in the
50734 + same way, allowing the other threads of the process to continue
50735 + running with root privileges. If the sysctl option is enabled,
50736 + a sysctl option with name "consistent_setxid" is created.
50737 +
50738 +config GRKERNSEC_TPE
50739 + bool "Trusted Path Execution (TPE)"
50740 + default y if GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_SERVER
50741 + help
50742 + If you say Y here, you will be able to choose a gid to add to the
50743 + supplementary groups of users you want to mark as "untrusted."
50744 + These users will not be able to execute any files that are not in
50745 + root-owned directories writable only by root. If the sysctl option
50746 + is enabled, a sysctl option with name "tpe" is created.
50747 +
50748 +config GRKERNSEC_TPE_ALL
50749 + bool "Partially restrict all non-root users"
50750 + depends on GRKERNSEC_TPE
50751 + help
50752 + If you say Y here, all non-root users will be covered under
50753 + a weaker TPE restriction. This is separate from, and in addition to,
50754 + the main TPE options that you have selected elsewhere. Thus, if a
50755 + "trusted" GID is chosen, this restriction applies to even that GID.
50756 + Under this restriction, all non-root users will only be allowed to
50757 + execute files in directories they own that are not group or
50758 + world-writable, or in directories owned by root and writable only by
50759 + root. If the sysctl option is enabled, a sysctl option with name
50760 + "tpe_restrict_all" is created.
50761 +
50762 +config GRKERNSEC_TPE_INVERT
50763 + bool "Invert GID option"
50764 + depends on GRKERNSEC_TPE
50765 + help
50766 + If you say Y here, the group you specify in the TPE configuration will
50767 + decide what group TPE restrictions will be *disabled* for. This
50768 + option is useful if you want TPE restrictions to be applied to most
50769 + users on the system. If the sysctl option is enabled, a sysctl option
50770 + with name "tpe_invert" is created. Unlike other sysctl options, this
50771 + entry will default to on for backward-compatibility.
50772 +
50773 +config GRKERNSEC_TPE_GID
50774 + int "GID for untrusted users"
50775 + depends on GRKERNSEC_TPE && !GRKERNSEC_TPE_INVERT
50776 + default 1005
50777 + help
50778 + Setting this GID determines what group TPE restrictions will be
50779 + *enabled* for. If the sysctl option is enabled, a sysctl option
50780 + with name "tpe_gid" is created.
50781 +
50782 +config GRKERNSEC_TPE_GID
50783 + int "GID for trusted users"
50784 + depends on GRKERNSEC_TPE && GRKERNSEC_TPE_INVERT
50785 + default 1005
50786 + help
50787 + Setting this GID determines what group TPE restrictions will be
50788 + *disabled* for. If the sysctl option is enabled, a sysctl option
50789 + with name "tpe_gid" is created.
50790 +
50791 +endmenu
50792 +menu "Network Protections"
50793 +depends on GRKERNSEC
50794 +
50795 +config GRKERNSEC_RANDNET
50796 + bool "Larger entropy pools"
50797 + default y if GRKERNSEC_CONFIG_AUTO
50798 + help
50799 + If you say Y here, the entropy pools used for many features of Linux
50800 + and grsecurity will be doubled in size. Since several grsecurity
50801 + features use additional randomness, it is recommended that you say Y
50802 + here. Saying Y here has a similar effect as modifying
50803 + /proc/sys/kernel/random/poolsize.
50804 +
50805 +config GRKERNSEC_BLACKHOLE
50806 + bool "TCP/UDP blackhole and LAST_ACK DoS prevention"
50807 + default y if GRKERNSEC_CONFIG_AUTO
50808 + depends on NET
50809 + help
50810 + If you say Y here, neither TCP resets nor ICMP
50811 + destination-unreachable packets will be sent in response to packets
50812 + sent to ports for which no associated listening process exists.
50813 + This feature supports both IPV4 and IPV6 and exempts the
50814 + loopback interface from blackholing. Enabling this feature
50815 + makes a host more resilient to DoS attacks and reduces network
50816 + visibility against scanners.
50817 +
50818 + The blackhole feature as-implemented is equivalent to the FreeBSD
50819 + blackhole feature, as it prevents RST responses to all packets, not
50820 + just SYNs. Under most application behavior this causes no
50821 + problems, but applications (like haproxy) may not close certain
50822 + connections in a way that cleanly terminates them on the remote
50823 + end, leaving the remote host in LAST_ACK state. Because of this
50824 + side-effect and to prevent intentional LAST_ACK DoSes, this
50825 + feature also adds automatic mitigation against such attacks.
50826 + The mitigation drastically reduces the amount of time a socket
50827 + can spend in LAST_ACK state. If you're using haproxy and not
50828 + all servers it connects to have this option enabled, consider
50829 + disabling this feature on the haproxy host.
50830 +
50831 + If the sysctl option is enabled, two sysctl options with names
50832 + "ip_blackhole" and "lastack_retries" will be created.
50833 + While "ip_blackhole" takes the standard zero/non-zero on/off
50834 + toggle, "lastack_retries" uses the same kinds of values as
50835 + "tcp_retries1" and "tcp_retries2". The default value of 4
50836 + prevents a socket from lasting more than 45 seconds in LAST_ACK
50837 + state.
50838 +
50839 +config GRKERNSEC_SOCKET
50840 + bool "Socket restrictions"
50841 + depends on NET
50842 + help
50843 + If you say Y here, you will be able to choose from several options.
50844 + If you assign a GID on your system and add it to the supplementary
50845 + groups of users you want to restrict socket access to, this patch
50846 + will perform up to three things, based on the option(s) you choose.
50847 +
50848 +config GRKERNSEC_SOCKET_ALL
50849 + bool "Deny any sockets to group"
50850 + depends on GRKERNSEC_SOCKET
50851 + help
50852 + If you say Y here, you will be able to choose a GID of whose users will
50853 + be unable to connect to other hosts from your machine or run server
50854 + applications from your machine. If the sysctl option is enabled, a
50855 + sysctl option with name "socket_all" is created.
50856 +
50857 +config GRKERNSEC_SOCKET_ALL_GID
50858 + int "GID to deny all sockets for"
50859 + depends on GRKERNSEC_SOCKET_ALL
50860 + default 1004
50861 + help
50862 + Here you can choose the GID to disable socket access for. Remember to
50863 + add the users you want socket access disabled for to the GID
50864 + specified here. If the sysctl option is enabled, a sysctl option
50865 + with name "socket_all_gid" is created.
50866 +
50867 +config GRKERNSEC_SOCKET_CLIENT
50868 + bool "Deny client sockets to group"
50869 + depends on GRKERNSEC_SOCKET
50870 + help
50871 + If you say Y here, you will be able to choose a GID of whose users will
50872 + be unable to connect to other hosts from your machine, but will be
50873 + able to run servers. If this option is enabled, all users in the group
50874 + you specify will have to use passive mode when initiating ftp transfers
50875 + from the shell on your machine. If the sysctl option is enabled, a
50876 + sysctl option with name "socket_client" is created.
50877 +
50878 +config GRKERNSEC_SOCKET_CLIENT_GID
50879 + int "GID to deny client sockets for"
50880 + depends on GRKERNSEC_SOCKET_CLIENT
50881 + default 1003
50882 + help
50883 + Here you can choose the GID to disable client socket access for.
50884 + Remember to add the users you want client socket access disabled for to
50885 + the GID specified here. If the sysctl option is enabled, a sysctl
50886 + option with name "socket_client_gid" is created.
50887 +
50888 +config GRKERNSEC_SOCKET_SERVER
50889 + bool "Deny server sockets to group"
50890 + depends on GRKERNSEC_SOCKET
50891 + help
50892 + If you say Y here, you will be able to choose a GID of whose users will
50893 + be unable to run server applications from your machine. If the sysctl
50894 + option is enabled, a sysctl option with name "socket_server" is created.
50895 +
50896 +config GRKERNSEC_SOCKET_SERVER_GID
50897 + int "GID to deny server sockets for"
50898 + depends on GRKERNSEC_SOCKET_SERVER
50899 + default 1002
50900 + help
50901 + Here you can choose the GID to disable server socket access for.
50902 + Remember to add the users you want server socket access disabled for to
50903 + the GID specified here. If the sysctl option is enabled, a sysctl
50904 + option with name "socket_server_gid" is created.
50905 +
50906 +endmenu
50907 +menu "Sysctl Support"
50908 +depends on GRKERNSEC && SYSCTL
50909 +
50910 +config GRKERNSEC_SYSCTL
50911 + bool "Sysctl support"
50912 + default y if GRKERNSEC_CONFIG_AUTO
50913 + help
50914 + If you say Y here, you will be able to change the options that
50915 + grsecurity runs with at bootup, without having to recompile your
50916 + kernel. You can echo values to files in /proc/sys/kernel/grsecurity
50917 + to enable (1) or disable (0) various features. All the sysctl entries
50918 + are mutable until the "grsec_lock" entry is set to a non-zero value.
50919 + All features enabled in the kernel configuration are disabled at boot
50920 + if you do not say Y to the "Turn on features by default" option.
50921 + All options should be set at startup, and the grsec_lock entry should
50922 + be set to a non-zero value after all the options are set.
50923 + *THIS IS EXTREMELY IMPORTANT*
50924 +
50925 +config GRKERNSEC_SYSCTL_DISTRO
50926 + bool "Extra sysctl support for distro makers (READ HELP)"
50927 + depends on GRKERNSEC_SYSCTL && GRKERNSEC_IO
50928 + help
50929 + If you say Y here, additional sysctl options will be created
50930 + for features that affect processes running as root. Therefore,
50931 + it is critical when using this option that the grsec_lock entry be
50932 + enabled after boot. Only distros with prebuilt kernel packages
50933 + with this option enabled that can ensure grsec_lock is enabled
50934 + after boot should use this option.
50935 + *Failure to set grsec_lock after boot makes all grsec features
50936 + this option covers useless*
50937 +
50938 + Currently this option creates the following sysctl entries:
50939 + "Disable Privileged I/O": "disable_priv_io"
50940 +
50941 +config GRKERNSEC_SYSCTL_ON
50942 + bool "Turn on features by default"
50943 + default y if GRKERNSEC_CONFIG_AUTO
50944 + depends on GRKERNSEC_SYSCTL
50945 + help
50946 + If you say Y here, instead of having all features enabled in the
50947 + kernel configuration disabled at boot time, the features will be
50948 + enabled at boot time. It is recommended you say Y here unless
50949 + there is some reason you would want all sysctl-tunable features to
50950 + be disabled by default. As mentioned elsewhere, it is important
50951 + to enable the grsec_lock entry once you have finished modifying
50952 + the sysctl entries.
50953 +
50954 +endmenu
50955 +menu "Logging Options"
50956 +depends on GRKERNSEC
50957 +
50958 +config GRKERNSEC_FLOODTIME
50959 + int "Seconds in between log messages (minimum)"
50960 + default 10
50961 + help
50962 + This option allows you to enforce the number of seconds between
50963 + grsecurity log messages. The default should be suitable for most
50964 + people, however, if you choose to change it, choose a value small enough
50965 + to allow informative logs to be produced, but large enough to
50966 + prevent flooding.
50967 +
50968 +config GRKERNSEC_FLOODBURST
50969 + int "Number of messages in a burst (maximum)"
50970 + default 6
50971 + help
50972 + This option allows you to choose the maximum number of messages allowed
50973 + within the flood time interval you chose in a separate option. The
50974 + default should be suitable for most people, however if you find that
50975 + many of your logs are being interpreted as flooding, you may want to
50976 + raise this value.
50977 +
50978 +endmenu
50979 diff --git a/grsecurity/Makefile b/grsecurity/Makefile
50980 new file mode 100644
50981 index 0000000..1b9afa9
50982 --- /dev/null
50983 +++ b/grsecurity/Makefile
50984 @@ -0,0 +1,38 @@
50985 +# grsecurity's ACL system was originally written in 2001 by Michael Dalton
50986 +# during 2001-2009 it has been completely redesigned by Brad Spengler
50987 +# into an RBAC system
50988 +#
50989 +# All code in this directory and various hooks inserted throughout the kernel
50990 +# are copyright Brad Spengler - Open Source Security, Inc., and released
50991 +# under the GPL v2 or higher
50992 +
50993 +KBUILD_CFLAGS += -Werror
50994 +
50995 +obj-y = grsec_chdir.o grsec_chroot.o grsec_exec.o grsec_fifo.o grsec_fork.o \
50996 + grsec_mount.o grsec_sig.o grsec_sysctl.o \
50997 + grsec_time.o grsec_tpe.o grsec_link.o grsec_pax.o grsec_ptrace.o
50998 +
50999 +obj-$(CONFIG_GRKERNSEC) += grsec_init.o grsum.o gracl.o gracl_segv.o \
51000 + gracl_cap.o gracl_alloc.o gracl_shm.o grsec_mem.o gracl_fs.o \
51001 + gracl_learn.o grsec_log.o
51002 +obj-$(CONFIG_GRKERNSEC_RESLOG) += gracl_res.o
51003 +
51004 +ifdef CONFIG_NET
51005 +obj-y += grsec_sock.o
51006 +obj-$(CONFIG_GRKERNSEC) += gracl_ip.o
51007 +endif
51008 +
51009 +ifndef CONFIG_GRKERNSEC
51010 +obj-y += grsec_disabled.o
51011 +endif
51012 +
51013 +ifdef CONFIG_GRKERNSEC_HIDESYM
51014 +extra-y := grsec_hidesym.o
51015 +$(obj)/grsec_hidesym.o:
51016 + @-chmod -f 500 /boot
51017 + @-chmod -f 500 /lib/modules
51018 + @-chmod -f 500 /lib64/modules
51019 + @-chmod -f 500 /lib32/modules
51020 + @-chmod -f 700 .
51021 + @echo ' grsec: protected kernel image paths'
51022 +endif
51023 diff --git a/grsecurity/gracl.c b/grsecurity/gracl.c
51024 new file mode 100644
51025 index 0000000..1561617
51026 --- /dev/null
51027 +++ b/grsecurity/gracl.c
51028 @@ -0,0 +1,4017 @@
51029 +#include <linux/kernel.h>
51030 +#include <linux/module.h>
51031 +#include <linux/sched.h>
51032 +#include <linux/mm.h>
51033 +#include <linux/file.h>
51034 +#include <linux/fs.h>
51035 +#include <linux/namei.h>
51036 +#include <linux/mount.h>
51037 +#include <linux/tty.h>
51038 +#include <linux/proc_fs.h>
51039 +#include <linux/lglock.h>
51040 +#include <linux/slab.h>
51041 +#include <linux/vmalloc.h>
51042 +#include <linux/types.h>
51043 +#include <linux/sysctl.h>
51044 +#include <linux/netdevice.h>
51045 +#include <linux/ptrace.h>
51046 +#include <linux/gracl.h>
51047 +#include <linux/gralloc.h>
51048 +#include <linux/security.h>
51049 +#include <linux/grinternal.h>
51050 +#include <linux/pid_namespace.h>
51051 +#include <linux/stop_machine.h>
51052 +#include <linux/fdtable.h>
51053 +#include <linux/percpu.h>
51054 +#include <linux/lglock.h>
51055 +#include "../fs/mount.h"
51056 +
51057 +#include <asm/uaccess.h>
51058 +#include <asm/errno.h>
51059 +#include <asm/mman.h>
51060 +
51061 +extern struct lglock vfsmount_lock;
51062 +
51063 +static struct acl_role_db acl_role_set;
51064 +static struct name_db name_set;
51065 +static struct inodev_db inodev_set;
51066 +
51067 +/* for keeping track of userspace pointers used for subjects, so we
51068 + can share references in the kernel as well
51069 +*/
51070 +
51071 +static struct path real_root;
51072 +
51073 +static struct acl_subj_map_db subj_map_set;
51074 +
51075 +static struct acl_role_label *default_role;
51076 +
51077 +static struct acl_role_label *role_list;
51078 +
51079 +static u16 acl_sp_role_value;
51080 +
51081 +extern char *gr_shared_page[4];
51082 +static DEFINE_MUTEX(gr_dev_mutex);
51083 +DEFINE_RWLOCK(gr_inode_lock);
51084 +
51085 +struct gr_arg *gr_usermode;
51086 +
51087 +static unsigned int gr_status __read_only = GR_STATUS_INIT;
51088 +
51089 +extern int chkpw(struct gr_arg *entry, unsigned char *salt, unsigned char *sum);
51090 +extern void gr_clear_learn_entries(void);
51091 +
51092 +#ifdef CONFIG_GRKERNSEC_RESLOG
51093 +extern void gr_log_resource(const struct task_struct *task,
51094 + const int res, const unsigned long wanted, const int gt);
51095 +#endif
51096 +
51097 +unsigned char *gr_system_salt;
51098 +unsigned char *gr_system_sum;
51099 +
51100 +static struct sprole_pw **acl_special_roles = NULL;
51101 +static __u16 num_sprole_pws = 0;
51102 +
51103 +static struct acl_role_label *kernel_role = NULL;
51104 +
51105 +static unsigned int gr_auth_attempts = 0;
51106 +static unsigned long gr_auth_expires = 0UL;
51107 +
51108 +#ifdef CONFIG_NET
51109 +extern struct vfsmount *sock_mnt;
51110 +#endif
51111 +
51112 +extern struct vfsmount *pipe_mnt;
51113 +extern struct vfsmount *shm_mnt;
51114 +#ifdef CONFIG_HUGETLBFS
51115 +extern struct vfsmount *hugetlbfs_vfsmount;
51116 +#endif
51117 +
51118 +static struct acl_object_label *fakefs_obj_rw;
51119 +static struct acl_object_label *fakefs_obj_rwx;
51120 +
51121 +extern int gr_init_uidset(void);
51122 +extern void gr_free_uidset(void);
51123 +extern void gr_remove_uid(uid_t uid);
51124 +extern int gr_find_uid(uid_t uid);
51125 +
51126 +__inline__ int
51127 +gr_acl_is_enabled(void)
51128 +{
51129 + return (gr_status & GR_READY);
51130 +}
51131 +
51132 +#ifdef CONFIG_BTRFS_FS
51133 +extern dev_t get_btrfs_dev_from_inode(struct inode *inode);
51134 +extern int btrfs_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat);
51135 +#endif
51136 +
51137 +static inline dev_t __get_dev(const struct dentry *dentry)
51138 +{
51139 +#ifdef CONFIG_BTRFS_FS
51140 + if (dentry->d_inode->i_op && dentry->d_inode->i_op->getattr == &btrfs_getattr)
51141 + return get_btrfs_dev_from_inode(dentry->d_inode);
51142 + else
51143 +#endif
51144 + return dentry->d_inode->i_sb->s_dev;
51145 +}
51146 +
51147 +dev_t gr_get_dev_from_dentry(struct dentry *dentry)
51148 +{
51149 + return __get_dev(dentry);
51150 +}
51151 +
51152 +static char gr_task_roletype_to_char(struct task_struct *task)
51153 +{
51154 + switch (task->role->roletype &
51155 + (GR_ROLE_DEFAULT | GR_ROLE_USER | GR_ROLE_GROUP |
51156 + GR_ROLE_SPECIAL)) {
51157 + case GR_ROLE_DEFAULT:
51158 + return 'D';
51159 + case GR_ROLE_USER:
51160 + return 'U';
51161 + case GR_ROLE_GROUP:
51162 + return 'G';
51163 + case GR_ROLE_SPECIAL:
51164 + return 'S';
51165 + }
51166 +
51167 + return 'X';
51168 +}
51169 +
51170 +char gr_roletype_to_char(void)
51171 +{
51172 + return gr_task_roletype_to_char(current);
51173 +}
51174 +
51175 +__inline__ int
51176 +gr_acl_tpe_check(void)
51177 +{
51178 + if (unlikely(!(gr_status & GR_READY)))
51179 + return 0;
51180 + if (current->role->roletype & GR_ROLE_TPE)
51181 + return 1;
51182 + else
51183 + return 0;
51184 +}
51185 +
51186 +int
51187 +gr_handle_rawio(const struct inode *inode)
51188 +{
51189 +#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS
51190 + if (inode && S_ISBLK(inode->i_mode) &&
51191 + grsec_enable_chroot_caps && proc_is_chrooted(current) &&
51192 + !capable(CAP_SYS_RAWIO))
51193 + return 1;
51194 +#endif
51195 + return 0;
51196 +}
51197 +
51198 +static int
51199 +gr_streq(const char *a, const char *b, const unsigned int lena, const unsigned int lenb)
51200 +{
51201 + if (likely(lena != lenb))
51202 + return 0;
51203 +
51204 + return !memcmp(a, b, lena);
51205 +}
51206 +
51207 +static int prepend(char **buffer, int *buflen, const char *str, int namelen)
51208 +{
51209 + *buflen -= namelen;
51210 + if (*buflen < 0)
51211 + return -ENAMETOOLONG;
51212 + *buffer -= namelen;
51213 + memcpy(*buffer, str, namelen);
51214 + return 0;
51215 +}
51216 +
51217 +static int prepend_name(char **buffer, int *buflen, struct qstr *name)
51218 +{
51219 + return prepend(buffer, buflen, name->name, name->len);
51220 +}
51221 +
51222 +static int prepend_path(const struct path *path, struct path *root,
51223 + char **buffer, int *buflen)
51224 +{
51225 + struct dentry *dentry = path->dentry;
51226 + struct vfsmount *vfsmnt = path->mnt;
51227 + struct mount *mnt = real_mount(vfsmnt);
51228 + bool slash = false;
51229 + int error = 0;
51230 +
51231 + while (dentry != root->dentry || vfsmnt != root->mnt) {
51232 + struct dentry * parent;
51233 +
51234 + if (dentry == vfsmnt->mnt_root || IS_ROOT(dentry)) {
51235 + /* Global root? */
51236 + if (!mnt_has_parent(mnt)) {
51237 + goto out;
51238 + }
51239 + dentry = mnt->mnt_mountpoint;
51240 + mnt = mnt->mnt_parent;
51241 + vfsmnt = &mnt->mnt;
51242 + continue;
51243 + }
51244 + parent = dentry->d_parent;
51245 + prefetch(parent);
51246 + spin_lock(&dentry->d_lock);
51247 + error = prepend_name(buffer, buflen, &dentry->d_name);
51248 + spin_unlock(&dentry->d_lock);
51249 + if (!error)
51250 + error = prepend(buffer, buflen, "/", 1);
51251 + if (error)
51252 + break;
51253 +
51254 + slash = true;
51255 + dentry = parent;
51256 + }
51257 +
51258 +out:
51259 + if (!error && !slash)
51260 + error = prepend(buffer, buflen, "/", 1);
51261 +
51262 + return error;
51263 +}
51264 +
51265 +/* this must be called with vfsmount_lock and rename_lock held */
51266 +
51267 +static char *__our_d_path(const struct path *path, struct path *root,
51268 + char *buf, int buflen)
51269 +{
51270 + char *res = buf + buflen;
51271 + int error;
51272 +
51273 + prepend(&res, &buflen, "\0", 1);
51274 + error = prepend_path(path, root, &res, &buflen);
51275 + if (error)
51276 + return ERR_PTR(error);
51277 +
51278 + return res;
51279 +}
51280 +
51281 +static char *
51282 +gen_full_path(struct path *path, struct path *root, char *buf, int buflen)
51283 +{
51284 + char *retval;
51285 +
51286 + retval = __our_d_path(path, root, buf, buflen);
51287 + if (unlikely(IS_ERR(retval)))
51288 + retval = strcpy(buf, "<path too long>");
51289 + else if (unlikely(retval[1] == '/' && retval[2] == '\0'))
51290 + retval[1] = '\0';
51291 +
51292 + return retval;
51293 +}
51294 +
51295 +static char *
51296 +__d_real_path(const struct dentry *dentry, const struct vfsmount *vfsmnt,
51297 + char *buf, int buflen)
51298 +{
51299 + struct path path;
51300 + char *res;
51301 +
51302 + path.dentry = (struct dentry *)dentry;
51303 + path.mnt = (struct vfsmount *)vfsmnt;
51304 +
51305 + /* we can use real_root.dentry, real_root.mnt, because this is only called
51306 + by the RBAC system */
51307 + res = gen_full_path(&path, &real_root, buf, buflen);
51308 +
51309 + return res;
51310 +}
51311 +
51312 +static char *
51313 +d_real_path(const struct dentry *dentry, const struct vfsmount *vfsmnt,
51314 + char *buf, int buflen)
51315 +{
51316 + char *res;
51317 + struct path path;
51318 + struct path root;
51319 + struct task_struct *reaper = init_pid_ns.child_reaper;
51320 +
51321 + path.dentry = (struct dentry *)dentry;
51322 + path.mnt = (struct vfsmount *)vfsmnt;
51323 +
51324 + /* we can't use real_root.dentry, real_root.mnt, because they belong only to the RBAC system */
51325 + get_fs_root(reaper->fs, &root);
51326 +
51327 + write_seqlock(&rename_lock);
51328 + br_read_lock(&vfsmount_lock);
51329 + res = gen_full_path(&path, &root, buf, buflen);
51330 + br_read_unlock(&vfsmount_lock);
51331 + write_sequnlock(&rename_lock);
51332 +
51333 + path_put(&root);
51334 + return res;
51335 +}
51336 +
51337 +static char *
51338 +gr_to_filename_rbac(const struct dentry *dentry, const struct vfsmount *mnt)
51339 +{
51340 + char *ret;
51341 + write_seqlock(&rename_lock);
51342 + br_read_lock(&vfsmount_lock);
51343 + ret = __d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[0],smp_processor_id()),
51344 + PAGE_SIZE);
51345 + br_read_unlock(&vfsmount_lock);
51346 + write_sequnlock(&rename_lock);
51347 + return ret;
51348 +}
51349 +
51350 +static char *
51351 +gr_to_proc_filename_rbac(const struct dentry *dentry, const struct vfsmount *mnt)
51352 +{
51353 + char *ret;
51354 + char *buf;
51355 + int buflen;
51356 +
51357 + write_seqlock(&rename_lock);
51358 + br_read_lock(&vfsmount_lock);
51359 + buf = per_cpu_ptr(gr_shared_page[0], smp_processor_id());
51360 + ret = __d_real_path(dentry, mnt, buf, PAGE_SIZE - 6);
51361 + buflen = (int)(ret - buf);
51362 + if (buflen >= 5)
51363 + prepend(&ret, &buflen, "/proc", 5);
51364 + else
51365 + ret = strcpy(buf, "<path too long>");
51366 + br_read_unlock(&vfsmount_lock);
51367 + write_sequnlock(&rename_lock);
51368 + return ret;
51369 +}
51370 +
51371 +char *
51372 +gr_to_filename_nolock(const struct dentry *dentry, const struct vfsmount *mnt)
51373 +{
51374 + return __d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[0],smp_processor_id()),
51375 + PAGE_SIZE);
51376 +}
51377 +
51378 +char *
51379 +gr_to_filename(const struct dentry *dentry, const struct vfsmount *mnt)
51380 +{
51381 + return d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[0], smp_processor_id()),
51382 + PAGE_SIZE);
51383 +}
51384 +
51385 +char *
51386 +gr_to_filename1(const struct dentry *dentry, const struct vfsmount *mnt)
51387 +{
51388 + return d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[1], smp_processor_id()),
51389 + PAGE_SIZE);
51390 +}
51391 +
51392 +char *
51393 +gr_to_filename2(const struct dentry *dentry, const struct vfsmount *mnt)
51394 +{
51395 + return d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[2], smp_processor_id()),
51396 + PAGE_SIZE);
51397 +}
51398 +
51399 +char *
51400 +gr_to_filename3(const struct dentry *dentry, const struct vfsmount *mnt)
51401 +{
51402 + return d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[3], smp_processor_id()),
51403 + PAGE_SIZE);
51404 +}
51405 +
51406 +__inline__ __u32
51407 +to_gr_audit(const __u32 reqmode)
51408 +{
51409 + /* masks off auditable permission flags, then shifts them to create
51410 + auditing flags, and adds the special case of append auditing if
51411 + we're requesting write */
51412 + return (((reqmode & ~GR_AUDITS) << 10) | ((reqmode & GR_WRITE) ? GR_AUDIT_APPEND : 0));
51413 +}
51414 +
51415 +struct acl_subject_label *
51416 +lookup_subject_map(const struct acl_subject_label *userp)
51417 +{
51418 + unsigned int index = shash(userp, subj_map_set.s_size);
51419 + struct subject_map *match;
51420 +
51421 + match = subj_map_set.s_hash[index];
51422 +
51423 + while (match && match->user != userp)
51424 + match = match->next;
51425 +
51426 + if (match != NULL)
51427 + return match->kernel;
51428 + else
51429 + return NULL;
51430 +}
51431 +
51432 +static void
51433 +insert_subj_map_entry(struct subject_map *subjmap)
51434 +{
51435 + unsigned int index = shash(subjmap->user, subj_map_set.s_size);
51436 + struct subject_map **curr;
51437 +
51438 + subjmap->prev = NULL;
51439 +
51440 + curr = &subj_map_set.s_hash[index];
51441 + if (*curr != NULL)
51442 + (*curr)->prev = subjmap;
51443 +
51444 + subjmap->next = *curr;
51445 + *curr = subjmap;
51446 +
51447 + return;
51448 +}
51449 +
51450 +static struct acl_role_label *
51451 +lookup_acl_role_label(const struct task_struct *task, const uid_t uid,
51452 + const gid_t gid)
51453 +{
51454 + unsigned int index = rhash(uid, GR_ROLE_USER, acl_role_set.r_size);
51455 + struct acl_role_label *match;
51456 + struct role_allowed_ip *ipp;
51457 + unsigned int x;
51458 + u32 curr_ip = task->signal->curr_ip;
51459 +
51460 + task->signal->saved_ip = curr_ip;
51461 +
51462 + match = acl_role_set.r_hash[index];
51463 +
51464 + while (match) {
51465 + if ((match->roletype & (GR_ROLE_DOMAIN | GR_ROLE_USER)) == (GR_ROLE_DOMAIN | GR_ROLE_USER)) {
51466 + for (x = 0; x < match->domain_child_num; x++) {
51467 + if (match->domain_children[x] == uid)
51468 + goto found;
51469 + }
51470 + } else if (match->uidgid == uid && match->roletype & GR_ROLE_USER)
51471 + break;
51472 + match = match->next;
51473 + }
51474 +found:
51475 + if (match == NULL) {
51476 + try_group:
51477 + index = rhash(gid, GR_ROLE_GROUP, acl_role_set.r_size);
51478 + match = acl_role_set.r_hash[index];
51479 +
51480 + while (match) {
51481 + if ((match->roletype & (GR_ROLE_DOMAIN | GR_ROLE_GROUP)) == (GR_ROLE_DOMAIN | GR_ROLE_GROUP)) {
51482 + for (x = 0; x < match->domain_child_num; x++) {
51483 + if (match->domain_children[x] == gid)
51484 + goto found2;
51485 + }
51486 + } else if (match->uidgid == gid && match->roletype & GR_ROLE_GROUP)
51487 + break;
51488 + match = match->next;
51489 + }
51490 +found2:
51491 + if (match == NULL)
51492 + match = default_role;
51493 + if (match->allowed_ips == NULL)
51494 + return match;
51495 + else {
51496 + for (ipp = match->allowed_ips; ipp; ipp = ipp->next) {
51497 + if (likely
51498 + ((ntohl(curr_ip) & ipp->netmask) ==
51499 + (ntohl(ipp->addr) & ipp->netmask)))
51500 + return match;
51501 + }
51502 + match = default_role;
51503 + }
51504 + } else if (match->allowed_ips == NULL) {
51505 + return match;
51506 + } else {
51507 + for (ipp = match->allowed_ips; ipp; ipp = ipp->next) {
51508 + if (likely
51509 + ((ntohl(curr_ip) & ipp->netmask) ==
51510 + (ntohl(ipp->addr) & ipp->netmask)))
51511 + return match;
51512 + }
51513 + goto try_group;
51514 + }
51515 +
51516 + return match;
51517 +}
51518 +
51519 +struct acl_subject_label *
51520 +lookup_acl_subj_label(const ino_t ino, const dev_t dev,
51521 + const struct acl_role_label *role)
51522 +{
51523 + unsigned int index = fhash(ino, dev, role->subj_hash_size);
51524 + struct acl_subject_label *match;
51525 +
51526 + match = role->subj_hash[index];
51527 +
51528 + while (match && (match->inode != ino || match->device != dev ||
51529 + (match->mode & GR_DELETED))) {
51530 + match = match->next;
51531 + }
51532 +
51533 + if (match && !(match->mode & GR_DELETED))
51534 + return match;
51535 + else
51536 + return NULL;
51537 +}
51538 +
51539 +struct acl_subject_label *
51540 +lookup_acl_subj_label_deleted(const ino_t ino, const dev_t dev,
51541 + const struct acl_role_label *role)
51542 +{
51543 + unsigned int index = fhash(ino, dev, role->subj_hash_size);
51544 + struct acl_subject_label *match;
51545 +
51546 + match = role->subj_hash[index];
51547 +
51548 + while (match && (match->inode != ino || match->device != dev ||
51549 + !(match->mode & GR_DELETED))) {
51550 + match = match->next;
51551 + }
51552 +
51553 + if (match && (match->mode & GR_DELETED))
51554 + return match;
51555 + else
51556 + return NULL;
51557 +}
51558 +
51559 +static struct acl_object_label *
51560 +lookup_acl_obj_label(const ino_t ino, const dev_t dev,
51561 + const struct acl_subject_label *subj)
51562 +{
51563 + unsigned int index = fhash(ino, dev, subj->obj_hash_size);
51564 + struct acl_object_label *match;
51565 +
51566 + match = subj->obj_hash[index];
51567 +
51568 + while (match && (match->inode != ino || match->device != dev ||
51569 + (match->mode & GR_DELETED))) {
51570 + match = match->next;
51571 + }
51572 +
51573 + if (match && !(match->mode & GR_DELETED))
51574 + return match;
51575 + else
51576 + return NULL;
51577 +}
51578 +
51579 +static struct acl_object_label *
51580 +lookup_acl_obj_label_create(const ino_t ino, const dev_t dev,
51581 + const struct acl_subject_label *subj)
51582 +{
51583 + unsigned int index = fhash(ino, dev, subj->obj_hash_size);
51584 + struct acl_object_label *match;
51585 +
51586 + match = subj->obj_hash[index];
51587 +
51588 + while (match && (match->inode != ino || match->device != dev ||
51589 + !(match->mode & GR_DELETED))) {
51590 + match = match->next;
51591 + }
51592 +
51593 + if (match && (match->mode & GR_DELETED))
51594 + return match;
51595 +
51596 + match = subj->obj_hash[index];
51597 +
51598 + while (match && (match->inode != ino || match->device != dev ||
51599 + (match->mode & GR_DELETED))) {
51600 + match = match->next;
51601 + }
51602 +
51603 + if (match && !(match->mode & GR_DELETED))
51604 + return match;
51605 + else
51606 + return NULL;
51607 +}
51608 +
51609 +static struct name_entry *
51610 +lookup_name_entry(const char *name)
51611 +{
51612 + unsigned int len = strlen(name);
51613 + unsigned int key = full_name_hash(name, len);
51614 + unsigned int index = key % name_set.n_size;
51615 + struct name_entry *match;
51616 +
51617 + match = name_set.n_hash[index];
51618 +
51619 + while (match && (match->key != key || !gr_streq(match->name, name, match->len, len)))
51620 + match = match->next;
51621 +
51622 + return match;
51623 +}
51624 +
51625 +static struct name_entry *
51626 +lookup_name_entry_create(const char *name)
51627 +{
51628 + unsigned int len = strlen(name);
51629 + unsigned int key = full_name_hash(name, len);
51630 + unsigned int index = key % name_set.n_size;
51631 + struct name_entry *match;
51632 +
51633 + match = name_set.n_hash[index];
51634 +
51635 + while (match && (match->key != key || !gr_streq(match->name, name, match->len, len) ||
51636 + !match->deleted))
51637 + match = match->next;
51638 +
51639 + if (match && match->deleted)
51640 + return match;
51641 +
51642 + match = name_set.n_hash[index];
51643 +
51644 + while (match && (match->key != key || !gr_streq(match->name, name, match->len, len) ||
51645 + match->deleted))
51646 + match = match->next;
51647 +
51648 + if (match && !match->deleted)
51649 + return match;
51650 + else
51651 + return NULL;
51652 +}
51653 +
51654 +static struct inodev_entry *
51655 +lookup_inodev_entry(const ino_t ino, const dev_t dev)
51656 +{
51657 + unsigned int index = fhash(ino, dev, inodev_set.i_size);
51658 + struct inodev_entry *match;
51659 +
51660 + match = inodev_set.i_hash[index];
51661 +
51662 + while (match && (match->nentry->inode != ino || match->nentry->device != dev))
51663 + match = match->next;
51664 +
51665 + return match;
51666 +}
51667 +
51668 +static void
51669 +insert_inodev_entry(struct inodev_entry *entry)
51670 +{
51671 + unsigned int index = fhash(entry->nentry->inode, entry->nentry->device,
51672 + inodev_set.i_size);
51673 + struct inodev_entry **curr;
51674 +
51675 + entry->prev = NULL;
51676 +
51677 + curr = &inodev_set.i_hash[index];
51678 + if (*curr != NULL)
51679 + (*curr)->prev = entry;
51680 +
51681 + entry->next = *curr;
51682 + *curr = entry;
51683 +
51684 + return;
51685 +}
51686 +
51687 +static void
51688 +__insert_acl_role_label(struct acl_role_label *role, uid_t uidgid)
51689 +{
51690 + unsigned int index =
51691 + rhash(uidgid, role->roletype & (GR_ROLE_USER | GR_ROLE_GROUP), acl_role_set.r_size);
51692 + struct acl_role_label **curr;
51693 + struct acl_role_label *tmp, *tmp2;
51694 +
51695 + curr = &acl_role_set.r_hash[index];
51696 +
51697 + /* simple case, slot is empty, just set it to our role */
51698 + if (*curr == NULL) {
51699 + *curr = role;
51700 + } else {
51701 + /* example:
51702 + 1 -> 2 -> 3 (adding 2 -> 3 to here)
51703 + 2 -> 3
51704 + */
51705 + /* first check to see if we can already be reached via this slot */
51706 + tmp = *curr;
51707 + while (tmp && tmp != role)
51708 + tmp = tmp->next;
51709 + if (tmp == role) {
51710 + /* we don't need to add ourselves to this slot's chain */
51711 + return;
51712 + }
51713 + /* we need to add ourselves to this chain, two cases */
51714 + if (role->next == NULL) {
51715 + /* simple case, append the current chain to our role */
51716 + role->next = *curr;
51717 + *curr = role;
51718 + } else {
51719 + /* 1 -> 2 -> 3 -> 4
51720 + 2 -> 3 -> 4
51721 + 3 -> 4 (adding 1 -> 2 -> 3 -> 4 to here)
51722 + */
51723 + /* trickier case: walk our role's chain until we find
51724 + the role for the start of the current slot's chain */
51725 + tmp = role;
51726 + tmp2 = *curr;
51727 + while (tmp->next && tmp->next != tmp2)
51728 + tmp = tmp->next;
51729 + if (tmp->next == tmp2) {
51730 + /* from example above, we found 3, so just
51731 + replace this slot's chain with ours */
51732 + *curr = role;
51733 + } else {
51734 + /* we didn't find a subset of our role's chain
51735 + in the current slot's chain, so append their
51736 + chain to ours, and set us as the first role in
51737 + the slot's chain
51738 +
51739 + we could fold this case with the case above,
51740 + but making it explicit for clarity
51741 + */
51742 + tmp->next = tmp2;
51743 + *curr = role;
51744 + }
51745 + }
51746 + }
51747 +
51748 + return;
51749 +}
51750 +
51751 +static void
51752 +insert_acl_role_label(struct acl_role_label *role)
51753 +{
51754 + int i;
51755 +
51756 + if (role_list == NULL) {
51757 + role_list = role;
51758 + role->prev = NULL;
51759 + } else {
51760 + role->prev = role_list;
51761 + role_list = role;
51762 + }
51763 +
51764 + /* used for hash chains */
51765 + role->next = NULL;
51766 +
51767 + if (role->roletype & GR_ROLE_DOMAIN) {
51768 + for (i = 0; i < role->domain_child_num; i++)
51769 + __insert_acl_role_label(role, role->domain_children[i]);
51770 + } else
51771 + __insert_acl_role_label(role, role->uidgid);
51772 +}
51773 +
51774 +static int
51775 +insert_name_entry(char *name, const ino_t inode, const dev_t device, __u8 deleted)
51776 +{
51777 + struct name_entry **curr, *nentry;
51778 + struct inodev_entry *ientry;
51779 + unsigned int len = strlen(name);
51780 + unsigned int key = full_name_hash(name, len);
51781 + unsigned int index = key % name_set.n_size;
51782 +
51783 + curr = &name_set.n_hash[index];
51784 +
51785 + while (*curr && ((*curr)->key != key || !gr_streq((*curr)->name, name, (*curr)->len, len)))
51786 + curr = &((*curr)->next);
51787 +
51788 + if (*curr != NULL)
51789 + return 1;
51790 +
51791 + nentry = acl_alloc(sizeof (struct name_entry));
51792 + if (nentry == NULL)
51793 + return 0;
51794 + ientry = acl_alloc(sizeof (struct inodev_entry));
51795 + if (ientry == NULL)
51796 + return 0;
51797 + ientry->nentry = nentry;
51798 +
51799 + nentry->key = key;
51800 + nentry->name = name;
51801 + nentry->inode = inode;
51802 + nentry->device = device;
51803 + nentry->len = len;
51804 + nentry->deleted = deleted;
51805 +
51806 + nentry->prev = NULL;
51807 + curr = &name_set.n_hash[index];
51808 + if (*curr != NULL)
51809 + (*curr)->prev = nentry;
51810 + nentry->next = *curr;
51811 + *curr = nentry;
51812 +
51813 + /* insert us into the table searchable by inode/dev */
51814 + insert_inodev_entry(ientry);
51815 +
51816 + return 1;
51817 +}
51818 +
51819 +static void
51820 +insert_acl_obj_label(struct acl_object_label *obj,
51821 + struct acl_subject_label *subj)
51822 +{
51823 + unsigned int index =
51824 + fhash(obj->inode, obj->device, subj->obj_hash_size);
51825 + struct acl_object_label **curr;
51826 +
51827 +
51828 + obj->prev = NULL;
51829 +
51830 + curr = &subj->obj_hash[index];
51831 + if (*curr != NULL)
51832 + (*curr)->prev = obj;
51833 +
51834 + obj->next = *curr;
51835 + *curr = obj;
51836 +
51837 + return;
51838 +}
51839 +
51840 +static void
51841 +insert_acl_subj_label(struct acl_subject_label *obj,
51842 + struct acl_role_label *role)
51843 +{
51844 + unsigned int index = fhash(obj->inode, obj->device, role->subj_hash_size);
51845 + struct acl_subject_label **curr;
51846 +
51847 + obj->prev = NULL;
51848 +
51849 + curr = &role->subj_hash[index];
51850 + if (*curr != NULL)
51851 + (*curr)->prev = obj;
51852 +
51853 + obj->next = *curr;
51854 + *curr = obj;
51855 +
51856 + return;
51857 +}
51858 +
51859 +/* allocating chained hash tables, so optimal size is where lambda ~ 1 */
51860 +
51861 +static void *
51862 +create_table(__u32 * len, int elementsize)
51863 +{
51864 + unsigned int table_sizes[] = {
51865 + 7, 13, 31, 61, 127, 251, 509, 1021, 2039, 4093, 8191, 16381,
51866 + 32749, 65521, 131071, 262139, 524287, 1048573, 2097143,
51867 + 4194301, 8388593, 16777213, 33554393, 67108859
51868 + };
51869 + void *newtable = NULL;
51870 + unsigned int pwr = 0;
51871 +
51872 + while ((pwr < ((sizeof (table_sizes) / sizeof (table_sizes[0])) - 1)) &&
51873 + table_sizes[pwr] <= *len)
51874 + pwr++;
51875 +
51876 + if (table_sizes[pwr] <= *len || (table_sizes[pwr] > ULONG_MAX / elementsize))
51877 + return newtable;
51878 +
51879 + if ((table_sizes[pwr] * elementsize) <= PAGE_SIZE)
51880 + newtable =
51881 + kmalloc(table_sizes[pwr] * elementsize, GFP_KERNEL);
51882 + else
51883 + newtable = vmalloc(table_sizes[pwr] * elementsize);
51884 +
51885 + *len = table_sizes[pwr];
51886 +
51887 + return newtable;
51888 +}
51889 +
51890 +static int
51891 +init_variables(const struct gr_arg *arg)
51892 +{
51893 + struct task_struct *reaper = init_pid_ns.child_reaper;
51894 + unsigned int stacksize;
51895 +
51896 + subj_map_set.s_size = arg->role_db.num_subjects;
51897 + acl_role_set.r_size = arg->role_db.num_roles + arg->role_db.num_domain_children;
51898 + name_set.n_size = arg->role_db.num_objects;
51899 + inodev_set.i_size = arg->role_db.num_objects;
51900 +
51901 + if (!subj_map_set.s_size || !acl_role_set.r_size ||
51902 + !name_set.n_size || !inodev_set.i_size)
51903 + return 1;
51904 +
51905 + if (!gr_init_uidset())
51906 + return 1;
51907 +
51908 + /* set up the stack that holds allocation info */
51909 +
51910 + stacksize = arg->role_db.num_pointers + 5;
51911 +
51912 + if (!acl_alloc_stack_init(stacksize))
51913 + return 1;
51914 +
51915 + /* grab reference for the real root dentry and vfsmount */
51916 + get_fs_root(reaper->fs, &real_root);
51917 +
51918 +#ifdef CONFIG_GRKERNSEC_RBAC_DEBUG
51919 + printk(KERN_ALERT "Obtained real root device=%d, inode=%lu\n", __get_dev(real_root.dentry), real_root.dentry->d_inode->i_ino);
51920 +#endif
51921 +
51922 + fakefs_obj_rw = acl_alloc(sizeof(struct acl_object_label));
51923 + if (fakefs_obj_rw == NULL)
51924 + return 1;
51925 + fakefs_obj_rw->mode = GR_FIND | GR_READ | GR_WRITE;
51926 +
51927 + fakefs_obj_rwx = acl_alloc(sizeof(struct acl_object_label));
51928 + if (fakefs_obj_rwx == NULL)
51929 + return 1;
51930 + fakefs_obj_rwx->mode = GR_FIND | GR_READ | GR_WRITE | GR_EXEC;
51931 +
51932 + subj_map_set.s_hash =
51933 + (struct subject_map **) create_table(&subj_map_set.s_size, sizeof(void *));
51934 + acl_role_set.r_hash =
51935 + (struct acl_role_label **) create_table(&acl_role_set.r_size, sizeof(void *));
51936 + name_set.n_hash = (struct name_entry **) create_table(&name_set.n_size, sizeof(void *));
51937 + inodev_set.i_hash =
51938 + (struct inodev_entry **) create_table(&inodev_set.i_size, sizeof(void *));
51939 +
51940 + if (!subj_map_set.s_hash || !acl_role_set.r_hash ||
51941 + !name_set.n_hash || !inodev_set.i_hash)
51942 + return 1;
51943 +
51944 + memset(subj_map_set.s_hash, 0,
51945 + sizeof(struct subject_map *) * subj_map_set.s_size);
51946 + memset(acl_role_set.r_hash, 0,
51947 + sizeof (struct acl_role_label *) * acl_role_set.r_size);
51948 + memset(name_set.n_hash, 0,
51949 + sizeof (struct name_entry *) * name_set.n_size);
51950 + memset(inodev_set.i_hash, 0,
51951 + sizeof (struct inodev_entry *) * inodev_set.i_size);
51952 +
51953 + return 0;
51954 +}
51955 +
51956 +/* free information not needed after startup
51957 + currently contains user->kernel pointer mappings for subjects
51958 +*/
51959 +
51960 +static void
51961 +free_init_variables(void)
51962 +{
51963 + __u32 i;
51964 +
51965 + if (subj_map_set.s_hash) {
51966 + for (i = 0; i < subj_map_set.s_size; i++) {
51967 + if (subj_map_set.s_hash[i]) {
51968 + kfree(subj_map_set.s_hash[i]);
51969 + subj_map_set.s_hash[i] = NULL;
51970 + }
51971 + }
51972 +
51973 + if ((subj_map_set.s_size * sizeof (struct subject_map *)) <=
51974 + PAGE_SIZE)
51975 + kfree(subj_map_set.s_hash);
51976 + else
51977 + vfree(subj_map_set.s_hash);
51978 + }
51979 +
51980 + return;
51981 +}
51982 +
51983 +static void
51984 +free_variables(void)
51985 +{
51986 + struct acl_subject_label *s;
51987 + struct acl_role_label *r;
51988 + struct task_struct *task, *task2;
51989 + unsigned int x;
51990 +
51991 + gr_clear_learn_entries();
51992 +
51993 + read_lock(&tasklist_lock);
51994 + do_each_thread(task2, task) {
51995 + task->acl_sp_role = 0;
51996 + task->acl_role_id = 0;
51997 + task->acl = NULL;
51998 + task->role = NULL;
51999 + } while_each_thread(task2, task);
52000 + read_unlock(&tasklist_lock);
52001 +
52002 + /* release the reference to the real root dentry and vfsmount */
52003 + path_put(&real_root);
52004 + memset(&real_root, 0, sizeof(real_root));
52005 +
52006 + /* free all object hash tables */
52007 +
52008 + FOR_EACH_ROLE_START(r)
52009 + if (r->subj_hash == NULL)
52010 + goto next_role;
52011 + FOR_EACH_SUBJECT_START(r, s, x)
52012 + if (s->obj_hash == NULL)
52013 + break;
52014 + if ((s->obj_hash_size * sizeof (struct acl_object_label *)) <= PAGE_SIZE)
52015 + kfree(s->obj_hash);
52016 + else
52017 + vfree(s->obj_hash);
52018 + FOR_EACH_SUBJECT_END(s, x)
52019 + FOR_EACH_NESTED_SUBJECT_START(r, s)
52020 + if (s->obj_hash == NULL)
52021 + break;
52022 + if ((s->obj_hash_size * sizeof (struct acl_object_label *)) <= PAGE_SIZE)
52023 + kfree(s->obj_hash);
52024 + else
52025 + vfree(s->obj_hash);
52026 + FOR_EACH_NESTED_SUBJECT_END(s)
52027 + if ((r->subj_hash_size * sizeof (struct acl_subject_label *)) <= PAGE_SIZE)
52028 + kfree(r->subj_hash);
52029 + else
52030 + vfree(r->subj_hash);
52031 + r->subj_hash = NULL;
52032 +next_role:
52033 + FOR_EACH_ROLE_END(r)
52034 +
52035 + acl_free_all();
52036 +
52037 + if (acl_role_set.r_hash) {
52038 + if ((acl_role_set.r_size * sizeof (struct acl_role_label *)) <=
52039 + PAGE_SIZE)
52040 + kfree(acl_role_set.r_hash);
52041 + else
52042 + vfree(acl_role_set.r_hash);
52043 + }
52044 + if (name_set.n_hash) {
52045 + if ((name_set.n_size * sizeof (struct name_entry *)) <=
52046 + PAGE_SIZE)
52047 + kfree(name_set.n_hash);
52048 + else
52049 + vfree(name_set.n_hash);
52050 + }
52051 +
52052 + if (inodev_set.i_hash) {
52053 + if ((inodev_set.i_size * sizeof (struct inodev_entry *)) <=
52054 + PAGE_SIZE)
52055 + kfree(inodev_set.i_hash);
52056 + else
52057 + vfree(inodev_set.i_hash);
52058 + }
52059 +
52060 + gr_free_uidset();
52061 +
52062 + memset(&name_set, 0, sizeof (struct name_db));
52063 + memset(&inodev_set, 0, sizeof (struct inodev_db));
52064 + memset(&acl_role_set, 0, sizeof (struct acl_role_db));
52065 + memset(&subj_map_set, 0, sizeof (struct acl_subj_map_db));
52066 +
52067 + default_role = NULL;
52068 + kernel_role = NULL;
52069 + role_list = NULL;
52070 +
52071 + return;
52072 +}
52073 +
52074 +static __u32
52075 +count_user_objs(struct acl_object_label *userp)
52076 +{
52077 + struct acl_object_label o_tmp;
52078 + __u32 num = 0;
52079 +
52080 + while (userp) {
52081 + if (copy_from_user(&o_tmp, userp,
52082 + sizeof (struct acl_object_label)))
52083 + break;
52084 +
52085 + userp = o_tmp.prev;
52086 + num++;
52087 + }
52088 +
52089 + return num;
52090 +}
52091 +
52092 +static struct acl_subject_label *
52093 +do_copy_user_subj(struct acl_subject_label *userp, struct acl_role_label *role);
52094 +
52095 +static int
52096 +copy_user_glob(struct acl_object_label *obj)
52097 +{
52098 + struct acl_object_label *g_tmp, **guser;
52099 + unsigned int len;
52100 + char *tmp;
52101 +
52102 + if (obj->globbed == NULL)
52103 + return 0;
52104 +
52105 + guser = &obj->globbed;
52106 + while (*guser) {
52107 + g_tmp = (struct acl_object_label *)
52108 + acl_alloc(sizeof (struct acl_object_label));
52109 + if (g_tmp == NULL)
52110 + return -ENOMEM;
52111 +
52112 + if (copy_from_user(g_tmp, *guser,
52113 + sizeof (struct acl_object_label)))
52114 + return -EFAULT;
52115 +
52116 + len = strnlen_user(g_tmp->filename, PATH_MAX);
52117 +
52118 + if (!len || len >= PATH_MAX)
52119 + return -EINVAL;
52120 +
52121 + if ((tmp = (char *) acl_alloc(len)) == NULL)
52122 + return -ENOMEM;
52123 +
52124 + if (copy_from_user(tmp, g_tmp->filename, len))
52125 + return -EFAULT;
52126 + tmp[len-1] = '\0';
52127 + g_tmp->filename = tmp;
52128 +
52129 + *guser = g_tmp;
52130 + guser = &(g_tmp->next);
52131 + }
52132 +
52133 + return 0;
52134 +}
52135 +
52136 +static int
52137 +copy_user_objs(struct acl_object_label *userp, struct acl_subject_label *subj,
52138 + struct acl_role_label *role)
52139 +{
52140 + struct acl_object_label *o_tmp;
52141 + unsigned int len;
52142 + int ret;
52143 + char *tmp;
52144 +
52145 + while (userp) {
52146 + if ((o_tmp = (struct acl_object_label *)
52147 + acl_alloc(sizeof (struct acl_object_label))) == NULL)
52148 + return -ENOMEM;
52149 +
52150 + if (copy_from_user(o_tmp, userp,
52151 + sizeof (struct acl_object_label)))
52152 + return -EFAULT;
52153 +
52154 + userp = o_tmp->prev;
52155 +
52156 + len = strnlen_user(o_tmp->filename, PATH_MAX);
52157 +
52158 + if (!len || len >= PATH_MAX)
52159 + return -EINVAL;
52160 +
52161 + if ((tmp = (char *) acl_alloc(len)) == NULL)
52162 + return -ENOMEM;
52163 +
52164 + if (copy_from_user(tmp, o_tmp->filename, len))
52165 + return -EFAULT;
52166 + tmp[len-1] = '\0';
52167 + o_tmp->filename = tmp;
52168 +
52169 + insert_acl_obj_label(o_tmp, subj);
52170 + if (!insert_name_entry(o_tmp->filename, o_tmp->inode,
52171 + o_tmp->device, (o_tmp->mode & GR_DELETED) ? 1 : 0))
52172 + return -ENOMEM;
52173 +
52174 + ret = copy_user_glob(o_tmp);
52175 + if (ret)
52176 + return ret;
52177 +
52178 + if (o_tmp->nested) {
52179 + o_tmp->nested = do_copy_user_subj(o_tmp->nested, role);
52180 + if (IS_ERR(o_tmp->nested))
52181 + return PTR_ERR(o_tmp->nested);
52182 +
52183 + /* insert into nested subject list */
52184 + o_tmp->nested->next = role->hash->first;
52185 + role->hash->first = o_tmp->nested;
52186 + }
52187 + }
52188 +
52189 + return 0;
52190 +}
52191 +
52192 +static __u32
52193 +count_user_subjs(struct acl_subject_label *userp)
52194 +{
52195 + struct acl_subject_label s_tmp;
52196 + __u32 num = 0;
52197 +
52198 + while (userp) {
52199 + if (copy_from_user(&s_tmp, userp,
52200 + sizeof (struct acl_subject_label)))
52201 + break;
52202 +
52203 + userp = s_tmp.prev;
52204 + /* do not count nested subjects against this count, since
52205 + they are not included in the hash table, but are
52206 + attached to objects. We have already counted
52207 + the subjects in userspace for the allocation
52208 + stack
52209 + */
52210 + if (!(s_tmp.mode & GR_NESTED))
52211 + num++;
52212 + }
52213 +
52214 + return num;
52215 +}
52216 +
52217 +static int
52218 +copy_user_allowedips(struct acl_role_label *rolep)
52219 +{
52220 + struct role_allowed_ip *ruserip, *rtmp = NULL, *rlast;
52221 +
52222 + ruserip = rolep->allowed_ips;
52223 +
52224 + while (ruserip) {
52225 + rlast = rtmp;
52226 +
52227 + if ((rtmp = (struct role_allowed_ip *)
52228 + acl_alloc(sizeof (struct role_allowed_ip))) == NULL)
52229 + return -ENOMEM;
52230 +
52231 + if (copy_from_user(rtmp, ruserip,
52232 + sizeof (struct role_allowed_ip)))
52233 + return -EFAULT;
52234 +
52235 + ruserip = rtmp->prev;
52236 +
52237 + if (!rlast) {
52238 + rtmp->prev = NULL;
52239 + rolep->allowed_ips = rtmp;
52240 + } else {
52241 + rlast->next = rtmp;
52242 + rtmp->prev = rlast;
52243 + }
52244 +
52245 + if (!ruserip)
52246 + rtmp->next = NULL;
52247 + }
52248 +
52249 + return 0;
52250 +}
52251 +
52252 +static int
52253 +copy_user_transitions(struct acl_role_label *rolep)
52254 +{
52255 + struct role_transition *rusertp, *rtmp = NULL, *rlast;
52256 +
52257 + unsigned int len;
52258 + char *tmp;
52259 +
52260 + rusertp = rolep->transitions;
52261 +
52262 + while (rusertp) {
52263 + rlast = rtmp;
52264 +
52265 + if ((rtmp = (struct role_transition *)
52266 + acl_alloc(sizeof (struct role_transition))) == NULL)
52267 + return -ENOMEM;
52268 +
52269 + if (copy_from_user(rtmp, rusertp,
52270 + sizeof (struct role_transition)))
52271 + return -EFAULT;
52272 +
52273 + rusertp = rtmp->prev;
52274 +
52275 + len = strnlen_user(rtmp->rolename, GR_SPROLE_LEN);
52276 +
52277 + if (!len || len >= GR_SPROLE_LEN)
52278 + return -EINVAL;
52279 +
52280 + if ((tmp = (char *) acl_alloc(len)) == NULL)
52281 + return -ENOMEM;
52282 +
52283 + if (copy_from_user(tmp, rtmp->rolename, len))
52284 + return -EFAULT;
52285 + tmp[len-1] = '\0';
52286 + rtmp->rolename = tmp;
52287 +
52288 + if (!rlast) {
52289 + rtmp->prev = NULL;
52290 + rolep->transitions = rtmp;
52291 + } else {
52292 + rlast->next = rtmp;
52293 + rtmp->prev = rlast;
52294 + }
52295 +
52296 + if (!rusertp)
52297 + rtmp->next = NULL;
52298 + }
52299 +
52300 + return 0;
52301 +}
52302 +
52303 +static struct acl_subject_label *
52304 +do_copy_user_subj(struct acl_subject_label *userp, struct acl_role_label *role)
52305 +{
52306 + struct acl_subject_label *s_tmp = NULL, *s_tmp2;
52307 + unsigned int len;
52308 + char *tmp;
52309 + __u32 num_objs;
52310 + struct acl_ip_label **i_tmp, *i_utmp2;
52311 + struct gr_hash_struct ghash;
52312 + struct subject_map *subjmap;
52313 + unsigned int i_num;
52314 + int err;
52315 +
52316 + s_tmp = lookup_subject_map(userp);
52317 +
52318 + /* we've already copied this subject into the kernel, just return
52319 + the reference to it, and don't copy it over again
52320 + */
52321 + if (s_tmp)
52322 + return(s_tmp);
52323 +
52324 + if ((s_tmp = (struct acl_subject_label *)
52325 + acl_alloc(sizeof (struct acl_subject_label))) == NULL)
52326 + return ERR_PTR(-ENOMEM);
52327 +
52328 + subjmap = (struct subject_map *)kmalloc(sizeof (struct subject_map), GFP_KERNEL);
52329 + if (subjmap == NULL)
52330 + return ERR_PTR(-ENOMEM);
52331 +
52332 + subjmap->user = userp;
52333 + subjmap->kernel = s_tmp;
52334 + insert_subj_map_entry(subjmap);
52335 +
52336 + if (copy_from_user(s_tmp, userp,
52337 + sizeof (struct acl_subject_label)))
52338 + return ERR_PTR(-EFAULT);
52339 +
52340 + len = strnlen_user(s_tmp->filename, PATH_MAX);
52341 +
52342 + if (!len || len >= PATH_MAX)
52343 + return ERR_PTR(-EINVAL);
52344 +
52345 + if ((tmp = (char *) acl_alloc(len)) == NULL)
52346 + return ERR_PTR(-ENOMEM);
52347 +
52348 + if (copy_from_user(tmp, s_tmp->filename, len))
52349 + return ERR_PTR(-EFAULT);
52350 + tmp[len-1] = '\0';
52351 + s_tmp->filename = tmp;
52352 +
52353 + if (!strcmp(s_tmp->filename, "/"))
52354 + role->root_label = s_tmp;
52355 +
52356 + if (copy_from_user(&ghash, s_tmp->hash, sizeof(struct gr_hash_struct)))
52357 + return ERR_PTR(-EFAULT);
52358 +
52359 + /* copy user and group transition tables */
52360 +
52361 + if (s_tmp->user_trans_num) {
52362 + uid_t *uidlist;
52363 +
52364 + uidlist = (uid_t *)acl_alloc_num(s_tmp->user_trans_num, sizeof(uid_t));
52365 + if (uidlist == NULL)
52366 + return ERR_PTR(-ENOMEM);
52367 + if (copy_from_user(uidlist, s_tmp->user_transitions, s_tmp->user_trans_num * sizeof(uid_t)))
52368 + return ERR_PTR(-EFAULT);
52369 +
52370 + s_tmp->user_transitions = uidlist;
52371 + }
52372 +
52373 + if (s_tmp->group_trans_num) {
52374 + gid_t *gidlist;
52375 +
52376 + gidlist = (gid_t *)acl_alloc_num(s_tmp->group_trans_num, sizeof(gid_t));
52377 + if (gidlist == NULL)
52378 + return ERR_PTR(-ENOMEM);
52379 + if (copy_from_user(gidlist, s_tmp->group_transitions, s_tmp->group_trans_num * sizeof(gid_t)))
52380 + return ERR_PTR(-EFAULT);
52381 +
52382 + s_tmp->group_transitions = gidlist;
52383 + }
52384 +
52385 + /* set up object hash table */
52386 + num_objs = count_user_objs(ghash.first);
52387 +
52388 + s_tmp->obj_hash_size = num_objs;
52389 + s_tmp->obj_hash =
52390 + (struct acl_object_label **)
52391 + create_table(&(s_tmp->obj_hash_size), sizeof(void *));
52392 +
52393 + if (!s_tmp->obj_hash)
52394 + return ERR_PTR(-ENOMEM);
52395 +
52396 + memset(s_tmp->obj_hash, 0,
52397 + s_tmp->obj_hash_size *
52398 + sizeof (struct acl_object_label *));
52399 +
52400 + /* add in objects */
52401 + err = copy_user_objs(ghash.first, s_tmp, role);
52402 +
52403 + if (err)
52404 + return ERR_PTR(err);
52405 +
52406 + /* set pointer for parent subject */
52407 + if (s_tmp->parent_subject) {
52408 + s_tmp2 = do_copy_user_subj(s_tmp->parent_subject, role);
52409 +
52410 + if (IS_ERR(s_tmp2))
52411 + return s_tmp2;
52412 +
52413 + s_tmp->parent_subject = s_tmp2;
52414 + }
52415 +
52416 + /* add in ip acls */
52417 +
52418 + if (!s_tmp->ip_num) {
52419 + s_tmp->ips = NULL;
52420 + goto insert;
52421 + }
52422 +
52423 + i_tmp =
52424 + (struct acl_ip_label **) acl_alloc_num(s_tmp->ip_num,
52425 + sizeof (struct acl_ip_label *));
52426 +
52427 + if (!i_tmp)
52428 + return ERR_PTR(-ENOMEM);
52429 +
52430 + for (i_num = 0; i_num < s_tmp->ip_num; i_num++) {
52431 + *(i_tmp + i_num) =
52432 + (struct acl_ip_label *)
52433 + acl_alloc(sizeof (struct acl_ip_label));
52434 + if (!*(i_tmp + i_num))
52435 + return ERR_PTR(-ENOMEM);
52436 +
52437 + if (copy_from_user
52438 + (&i_utmp2, s_tmp->ips + i_num,
52439 + sizeof (struct acl_ip_label *)))
52440 + return ERR_PTR(-EFAULT);
52441 +
52442 + if (copy_from_user
52443 + (*(i_tmp + i_num), i_utmp2,
52444 + sizeof (struct acl_ip_label)))
52445 + return ERR_PTR(-EFAULT);
52446 +
52447 + if ((*(i_tmp + i_num))->iface == NULL)
52448 + continue;
52449 +
52450 + len = strnlen_user((*(i_tmp + i_num))->iface, IFNAMSIZ);
52451 + if (!len || len >= IFNAMSIZ)
52452 + return ERR_PTR(-EINVAL);
52453 + tmp = acl_alloc(len);
52454 + if (tmp == NULL)
52455 + return ERR_PTR(-ENOMEM);
52456 + if (copy_from_user(tmp, (*(i_tmp + i_num))->iface, len))
52457 + return ERR_PTR(-EFAULT);
52458 + (*(i_tmp + i_num))->iface = tmp;
52459 + }
52460 +
52461 + s_tmp->ips = i_tmp;
52462 +
52463 +insert:
52464 + if (!insert_name_entry(s_tmp->filename, s_tmp->inode,
52465 + s_tmp->device, (s_tmp->mode & GR_DELETED) ? 1 : 0))
52466 + return ERR_PTR(-ENOMEM);
52467 +
52468 + return s_tmp;
52469 +}
52470 +
52471 +static int
52472 +copy_user_subjs(struct acl_subject_label *userp, struct acl_role_label *role)
52473 +{
52474 + struct acl_subject_label s_pre;
52475 + struct acl_subject_label * ret;
52476 + int err;
52477 +
52478 + while (userp) {
52479 + if (copy_from_user(&s_pre, userp,
52480 + sizeof (struct acl_subject_label)))
52481 + return -EFAULT;
52482 +
52483 + /* do not add nested subjects here, add
52484 + while parsing objects
52485 + */
52486 +
52487 + if (s_pre.mode & GR_NESTED) {
52488 + userp = s_pre.prev;
52489 + continue;
52490 + }
52491 +
52492 + ret = do_copy_user_subj(userp, role);
52493 +
52494 + err = PTR_ERR(ret);
52495 + if (IS_ERR(ret))
52496 + return err;
52497 +
52498 + insert_acl_subj_label(ret, role);
52499 +
52500 + userp = s_pre.prev;
52501 + }
52502 +
52503 + return 0;
52504 +}
52505 +
52506 +static int
52507 +copy_user_acl(struct gr_arg *arg)
52508 +{
52509 + struct acl_role_label *r_tmp = NULL, **r_utmp, *r_utmp2;
52510 + struct sprole_pw *sptmp;
52511 + struct gr_hash_struct *ghash;
52512 + uid_t *domainlist;
52513 + unsigned int r_num;
52514 + unsigned int len;
52515 + char *tmp;
52516 + int err = 0;
52517 + __u16 i;
52518 + __u32 num_subjs;
52519 +
52520 + /* we need a default and kernel role */
52521 + if (arg->role_db.num_roles < 2)
52522 + return -EINVAL;
52523 +
52524 + /* copy special role authentication info from userspace */
52525 +
52526 + num_sprole_pws = arg->num_sprole_pws;
52527 + acl_special_roles = (struct sprole_pw **) acl_alloc_num(num_sprole_pws, sizeof(struct sprole_pw *));
52528 +
52529 + if (!acl_special_roles && num_sprole_pws)
52530 + return -ENOMEM;
52531 +
52532 + for (i = 0; i < num_sprole_pws; i++) {
52533 + sptmp = (struct sprole_pw *) acl_alloc(sizeof(struct sprole_pw));
52534 + if (!sptmp)
52535 + return -ENOMEM;
52536 + if (copy_from_user(sptmp, arg->sprole_pws + i,
52537 + sizeof (struct sprole_pw)))
52538 + return -EFAULT;
52539 +
52540 + len = strnlen_user(sptmp->rolename, GR_SPROLE_LEN);
52541 +
52542 + if (!len || len >= GR_SPROLE_LEN)
52543 + return -EINVAL;
52544 +
52545 + if ((tmp = (char *) acl_alloc(len)) == NULL)
52546 + return -ENOMEM;
52547 +
52548 + if (copy_from_user(tmp, sptmp->rolename, len))
52549 + return -EFAULT;
52550 +
52551 + tmp[len-1] = '\0';
52552 +#ifdef CONFIG_GRKERNSEC_RBAC_DEBUG
52553 + printk(KERN_ALERT "Copying special role %s\n", tmp);
52554 +#endif
52555 + sptmp->rolename = tmp;
52556 + acl_special_roles[i] = sptmp;
52557 + }
52558 +
52559 + r_utmp = (struct acl_role_label **) arg->role_db.r_table;
52560 +
52561 + for (r_num = 0; r_num < arg->role_db.num_roles; r_num++) {
52562 + r_tmp = acl_alloc(sizeof (struct acl_role_label));
52563 +
52564 + if (!r_tmp)
52565 + return -ENOMEM;
52566 +
52567 + if (copy_from_user(&r_utmp2, r_utmp + r_num,
52568 + sizeof (struct acl_role_label *)))
52569 + return -EFAULT;
52570 +
52571 + if (copy_from_user(r_tmp, r_utmp2,
52572 + sizeof (struct acl_role_label)))
52573 + return -EFAULT;
52574 +
52575 + len = strnlen_user(r_tmp->rolename, GR_SPROLE_LEN);
52576 +
52577 + if (!len || len >= PATH_MAX)
52578 + return -EINVAL;
52579 +
52580 + if ((tmp = (char *) acl_alloc(len)) == NULL)
52581 + return -ENOMEM;
52582 +
52583 + if (copy_from_user(tmp, r_tmp->rolename, len))
52584 + return -EFAULT;
52585 +
52586 + tmp[len-1] = '\0';
52587 + r_tmp->rolename = tmp;
52588 +
52589 + if (!strcmp(r_tmp->rolename, "default")
52590 + && (r_tmp->roletype & GR_ROLE_DEFAULT)) {
52591 + default_role = r_tmp;
52592 + } else if (!strcmp(r_tmp->rolename, ":::kernel:::")) {
52593 + kernel_role = r_tmp;
52594 + }
52595 +
52596 + if ((ghash = (struct gr_hash_struct *) acl_alloc(sizeof(struct gr_hash_struct))) == NULL)
52597 + return -ENOMEM;
52598 +
52599 + if (copy_from_user(ghash, r_tmp->hash, sizeof(struct gr_hash_struct)))
52600 + return -EFAULT;
52601 +
52602 + r_tmp->hash = ghash;
52603 +
52604 + num_subjs = count_user_subjs(r_tmp->hash->first);
52605 +
52606 + r_tmp->subj_hash_size = num_subjs;
52607 + r_tmp->subj_hash =
52608 + (struct acl_subject_label **)
52609 + create_table(&(r_tmp->subj_hash_size), sizeof(void *));
52610 +
52611 + if (!r_tmp->subj_hash)
52612 + return -ENOMEM;
52613 +
52614 + err = copy_user_allowedips(r_tmp);
52615 + if (err)
52616 + return err;
52617 +
52618 + /* copy domain info */
52619 + if (r_tmp->domain_children != NULL) {
52620 + domainlist = acl_alloc_num(r_tmp->domain_child_num, sizeof(uid_t));
52621 + if (domainlist == NULL)
52622 + return -ENOMEM;
52623 +
52624 + if (copy_from_user(domainlist, r_tmp->domain_children, r_tmp->domain_child_num * sizeof(uid_t)))
52625 + return -EFAULT;
52626 +
52627 + r_tmp->domain_children = domainlist;
52628 + }
52629 +
52630 + err = copy_user_transitions(r_tmp);
52631 + if (err)
52632 + return err;
52633 +
52634 + memset(r_tmp->subj_hash, 0,
52635 + r_tmp->subj_hash_size *
52636 + sizeof (struct acl_subject_label *));
52637 +
52638 + err = copy_user_subjs(r_tmp->hash->first, r_tmp);
52639 +
52640 + if (err)
52641 + return err;
52642 +
52643 + /* set nested subject list to null */
52644 + r_tmp->hash->first = NULL;
52645 +
52646 + insert_acl_role_label(r_tmp);
52647 + }
52648 +
52649 + if (default_role == NULL || kernel_role == NULL)
52650 + return -EINVAL;
52651 +
52652 + return err;
52653 +}
52654 +
52655 +static int
52656 +gracl_init(struct gr_arg *args)
52657 +{
52658 + int error = 0;
52659 +
52660 + memcpy(gr_system_salt, args->salt, GR_SALT_LEN);
52661 + memcpy(gr_system_sum, args->sum, GR_SHA_LEN);
52662 +
52663 + if (init_variables(args)) {
52664 + gr_log_str(GR_DONT_AUDIT_GOOD, GR_INITF_ACL_MSG, GR_VERSION);
52665 + error = -ENOMEM;
52666 + free_variables();
52667 + goto out;
52668 + }
52669 +
52670 + error = copy_user_acl(args);
52671 + free_init_variables();
52672 + if (error) {
52673 + free_variables();
52674 + goto out;
52675 + }
52676 +
52677 + if ((error = gr_set_acls(0))) {
52678 + free_variables();
52679 + goto out;
52680 + }
52681 +
52682 + pax_open_kernel();
52683 + gr_status |= GR_READY;
52684 + pax_close_kernel();
52685 +
52686 + out:
52687 + return error;
52688 +}
52689 +
52690 +/* derived from glibc fnmatch() 0: match, 1: no match*/
52691 +
52692 +static int
52693 +glob_match(const char *p, const char *n)
52694 +{
52695 + char c;
52696 +
52697 + while ((c = *p++) != '\0') {
52698 + switch (c) {
52699 + case '?':
52700 + if (*n == '\0')
52701 + return 1;
52702 + else if (*n == '/')
52703 + return 1;
52704 + break;
52705 + case '\\':
52706 + if (*n != c)
52707 + return 1;
52708 + break;
52709 + case '*':
52710 + for (c = *p++; c == '?' || c == '*'; c = *p++) {
52711 + if (*n == '/')
52712 + return 1;
52713 + else if (c == '?') {
52714 + if (*n == '\0')
52715 + return 1;
52716 + else
52717 + ++n;
52718 + }
52719 + }
52720 + if (c == '\0') {
52721 + return 0;
52722 + } else {
52723 + const char *endp;
52724 +
52725 + if ((endp = strchr(n, '/')) == NULL)
52726 + endp = n + strlen(n);
52727 +
52728 + if (c == '[') {
52729 + for (--p; n < endp; ++n)
52730 + if (!glob_match(p, n))
52731 + return 0;
52732 + } else if (c == '/') {
52733 + while (*n != '\0' && *n != '/')
52734 + ++n;
52735 + if (*n == '/' && !glob_match(p, n + 1))
52736 + return 0;
52737 + } else {
52738 + for (--p; n < endp; ++n)
52739 + if (*n == c && !glob_match(p, n))
52740 + return 0;
52741 + }
52742 +
52743 + return 1;
52744 + }
52745 + case '[':
52746 + {
52747 + int not;
52748 + char cold;
52749 +
52750 + if (*n == '\0' || *n == '/')
52751 + return 1;
52752 +
52753 + not = (*p == '!' || *p == '^');
52754 + if (not)
52755 + ++p;
52756 +
52757 + c = *p++;
52758 + for (;;) {
52759 + unsigned char fn = (unsigned char)*n;
52760 +
52761 + if (c == '\0')
52762 + return 1;
52763 + else {
52764 + if (c == fn)
52765 + goto matched;
52766 + cold = c;
52767 + c = *p++;
52768 +
52769 + if (c == '-' && *p != ']') {
52770 + unsigned char cend = *p++;
52771 +
52772 + if (cend == '\0')
52773 + return 1;
52774 +
52775 + if (cold <= fn && fn <= cend)
52776 + goto matched;
52777 +
52778 + c = *p++;
52779 + }
52780 + }
52781 +
52782 + if (c == ']')
52783 + break;
52784 + }
52785 + if (!not)
52786 + return 1;
52787 + break;
52788 + matched:
52789 + while (c != ']') {
52790 + if (c == '\0')
52791 + return 1;
52792 +
52793 + c = *p++;
52794 + }
52795 + if (not)
52796 + return 1;
52797 + }
52798 + break;
52799 + default:
52800 + if (c != *n)
52801 + return 1;
52802 + }
52803 +
52804 + ++n;
52805 + }
52806 +
52807 + if (*n == '\0')
52808 + return 0;
52809 +
52810 + if (*n == '/')
52811 + return 0;
52812 +
52813 + return 1;
52814 +}
52815 +
52816 +static struct acl_object_label *
52817 +chk_glob_label(struct acl_object_label *globbed,
52818 + const struct dentry *dentry, const struct vfsmount *mnt, char **path)
52819 +{
52820 + struct acl_object_label *tmp;
52821 +
52822 + if (*path == NULL)
52823 + *path = gr_to_filename_nolock(dentry, mnt);
52824 +
52825 + tmp = globbed;
52826 +
52827 + while (tmp) {
52828 + if (!glob_match(tmp->filename, *path))
52829 + return tmp;
52830 + tmp = tmp->next;
52831 + }
52832 +
52833 + return NULL;
52834 +}
52835 +
52836 +static struct acl_object_label *
52837 +__full_lookup(const struct dentry *orig_dentry, const struct vfsmount *orig_mnt,
52838 + const ino_t curr_ino, const dev_t curr_dev,
52839 + const struct acl_subject_label *subj, char **path, const int checkglob)
52840 +{
52841 + struct acl_subject_label *tmpsubj;
52842 + struct acl_object_label *retval;
52843 + struct acl_object_label *retval2;
52844 +
52845 + tmpsubj = (struct acl_subject_label *) subj;
52846 + read_lock(&gr_inode_lock);
52847 + do {
52848 + retval = lookup_acl_obj_label(curr_ino, curr_dev, tmpsubj);
52849 + if (retval) {
52850 + if (checkglob && retval->globbed) {
52851 + retval2 = chk_glob_label(retval->globbed, orig_dentry, orig_mnt, path);
52852 + if (retval2)
52853 + retval = retval2;
52854 + }
52855 + break;
52856 + }
52857 + } while ((tmpsubj = tmpsubj->parent_subject));
52858 + read_unlock(&gr_inode_lock);
52859 +
52860 + return retval;
52861 +}
52862 +
52863 +static __inline__ struct acl_object_label *
52864 +full_lookup(const struct dentry *orig_dentry, const struct vfsmount *orig_mnt,
52865 + struct dentry *curr_dentry,
52866 + const struct acl_subject_label *subj, char **path, const int checkglob)
52867 +{
52868 + int newglob = checkglob;
52869 + ino_t inode;
52870 + dev_t device;
52871 +
52872 + /* if we aren't checking a subdirectory of the original path yet, don't do glob checking
52873 + as we don't want a / * rule to match instead of the / object
52874 + don't do this for create lookups that call this function though, since they're looking up
52875 + on the parent and thus need globbing checks on all paths
52876 + */
52877 + if (orig_dentry == curr_dentry && newglob != GR_CREATE_GLOB)
52878 + newglob = GR_NO_GLOB;
52879 +
52880 + spin_lock(&curr_dentry->d_lock);
52881 + inode = curr_dentry->d_inode->i_ino;
52882 + device = __get_dev(curr_dentry);
52883 + spin_unlock(&curr_dentry->d_lock);
52884 +
52885 + return __full_lookup(orig_dentry, orig_mnt, inode, device, subj, path, newglob);
52886 +}
52887 +
52888 +static struct acl_object_label *
52889 +__chk_obj_label(const struct dentry *l_dentry, const struct vfsmount *l_mnt,
52890 + const struct acl_subject_label *subj, char *path, const int checkglob)
52891 +{
52892 + struct dentry *dentry = (struct dentry *) l_dentry;
52893 + struct vfsmount *mnt = (struct vfsmount *) l_mnt;
52894 + struct mount *real_mnt = real_mount(mnt);
52895 + struct acl_object_label *retval;
52896 + struct dentry *parent;
52897 +
52898 + write_seqlock(&rename_lock);
52899 + br_read_lock(&vfsmount_lock);
52900 +
52901 + if (unlikely((mnt == shm_mnt && dentry->d_inode->i_nlink == 0) || mnt == pipe_mnt ||
52902 +#ifdef CONFIG_NET
52903 + mnt == sock_mnt ||
52904 +#endif
52905 +#ifdef CONFIG_HUGETLBFS
52906 + (mnt == hugetlbfs_vfsmount && dentry->d_inode->i_nlink == 0) ||
52907 +#endif
52908 + /* ignore Eric Biederman */
52909 + IS_PRIVATE(l_dentry->d_inode))) {
52910 + retval = (subj->mode & GR_SHMEXEC) ? fakefs_obj_rwx : fakefs_obj_rw;
52911 + goto out;
52912 + }
52913 +
52914 + for (;;) {
52915 + if (dentry == real_root.dentry && mnt == real_root.mnt)
52916 + break;
52917 +
52918 + if (dentry == mnt->mnt_root || IS_ROOT(dentry)) {
52919 + if (!mnt_has_parent(real_mnt))
52920 + break;
52921 +
52922 + retval = full_lookup(l_dentry, l_mnt, dentry, subj, &path, checkglob);
52923 + if (retval != NULL)
52924 + goto out;
52925 +
52926 + dentry = real_mnt->mnt_mountpoint;
52927 + real_mnt = real_mnt->mnt_parent;
52928 + mnt = &real_mnt->mnt;
52929 + continue;
52930 + }
52931 +
52932 + parent = dentry->d_parent;
52933 + retval = full_lookup(l_dentry, l_mnt, dentry, subj, &path, checkglob);
52934 + if (retval != NULL)
52935 + goto out;
52936 +
52937 + dentry = parent;
52938 + }
52939 +
52940 + retval = full_lookup(l_dentry, l_mnt, dentry, subj, &path, checkglob);
52941 +
52942 + /* real_root is pinned so we don't have to hold a reference */
52943 + if (retval == NULL)
52944 + retval = full_lookup(l_dentry, l_mnt, real_root.dentry, subj, &path, checkglob);
52945 +out:
52946 + br_read_unlock(&vfsmount_lock);
52947 + write_sequnlock(&rename_lock);
52948 +
52949 + BUG_ON(retval == NULL);
52950 +
52951 + return retval;
52952 +}
52953 +
52954 +static __inline__ struct acl_object_label *
52955 +chk_obj_label(const struct dentry *l_dentry, const struct vfsmount *l_mnt,
52956 + const struct acl_subject_label *subj)
52957 +{
52958 + char *path = NULL;
52959 + return __chk_obj_label(l_dentry, l_mnt, subj, path, GR_REG_GLOB);
52960 +}
52961 +
52962 +static __inline__ struct acl_object_label *
52963 +chk_obj_label_noglob(const struct dentry *l_dentry, const struct vfsmount *l_mnt,
52964 + const struct acl_subject_label *subj)
52965 +{
52966 + char *path = NULL;
52967 + return __chk_obj_label(l_dentry, l_mnt, subj, path, GR_NO_GLOB);
52968 +}
52969 +
52970 +static __inline__ struct acl_object_label *
52971 +chk_obj_create_label(const struct dentry *l_dentry, const struct vfsmount *l_mnt,
52972 + const struct acl_subject_label *subj, char *path)
52973 +{
52974 + return __chk_obj_label(l_dentry, l_mnt, subj, path, GR_CREATE_GLOB);
52975 +}
52976 +
52977 +static struct acl_subject_label *
52978 +chk_subj_label(const struct dentry *l_dentry, const struct vfsmount *l_mnt,
52979 + const struct acl_role_label *role)
52980 +{
52981 + struct dentry *dentry = (struct dentry *) l_dentry;
52982 + struct vfsmount *mnt = (struct vfsmount *) l_mnt;
52983 + struct mount *real_mnt = real_mount(mnt);
52984 + struct acl_subject_label *retval;
52985 + struct dentry *parent;
52986 +
52987 + write_seqlock(&rename_lock);
52988 + br_read_lock(&vfsmount_lock);
52989 +
52990 + for (;;) {
52991 + if (dentry == real_root.dentry && mnt == real_root.mnt)
52992 + break;
52993 + if (dentry == mnt->mnt_root || IS_ROOT(dentry)) {
52994 + if (!mnt_has_parent(real_mnt))
52995 + break;
52996 +
52997 + spin_lock(&dentry->d_lock);
52998 + read_lock(&gr_inode_lock);
52999 + retval =
53000 + lookup_acl_subj_label(dentry->d_inode->i_ino,
53001 + __get_dev(dentry), role);
53002 + read_unlock(&gr_inode_lock);
53003 + spin_unlock(&dentry->d_lock);
53004 + if (retval != NULL)
53005 + goto out;
53006 +
53007 + dentry = real_mnt->mnt_mountpoint;
53008 + real_mnt = real_mnt->mnt_parent;
53009 + mnt = &real_mnt->mnt;
53010 + continue;
53011 + }
53012 +
53013 + spin_lock(&dentry->d_lock);
53014 + read_lock(&gr_inode_lock);
53015 + retval = lookup_acl_subj_label(dentry->d_inode->i_ino,
53016 + __get_dev(dentry), role);
53017 + read_unlock(&gr_inode_lock);
53018 + parent = dentry->d_parent;
53019 + spin_unlock(&dentry->d_lock);
53020 +
53021 + if (retval != NULL)
53022 + goto out;
53023 +
53024 + dentry = parent;
53025 + }
53026 +
53027 + spin_lock(&dentry->d_lock);
53028 + read_lock(&gr_inode_lock);
53029 + retval = lookup_acl_subj_label(dentry->d_inode->i_ino,
53030 + __get_dev(dentry), role);
53031 + read_unlock(&gr_inode_lock);
53032 + spin_unlock(&dentry->d_lock);
53033 +
53034 + if (unlikely(retval == NULL)) {
53035 + /* real_root is pinned, we don't need to hold a reference */
53036 + read_lock(&gr_inode_lock);
53037 + retval = lookup_acl_subj_label(real_root.dentry->d_inode->i_ino,
53038 + __get_dev(real_root.dentry), role);
53039 + read_unlock(&gr_inode_lock);
53040 + }
53041 +out:
53042 + br_read_unlock(&vfsmount_lock);
53043 + write_sequnlock(&rename_lock);
53044 +
53045 + BUG_ON(retval == NULL);
53046 +
53047 + return retval;
53048 +}
53049 +
53050 +static void
53051 +gr_log_learn(const struct dentry *dentry, const struct vfsmount *mnt, const __u32 mode)
53052 +{
53053 + struct task_struct *task = current;
53054 + const struct cred *cred = current_cred();
53055 +
53056 + security_learn(GR_LEARN_AUDIT_MSG, task->role->rolename, task->role->roletype,
53057 + cred->uid, cred->gid, task->exec_file ? gr_to_filename1(task->exec_file->f_path.dentry,
53058 + task->exec_file->f_path.mnt) : task->acl->filename, task->acl->filename,
53059 + 1UL, 1UL, gr_to_filename(dentry, mnt), (unsigned long) mode, &task->signal->saved_ip);
53060 +
53061 + return;
53062 +}
53063 +
53064 +static void
53065 +gr_log_learn_id_change(const char type, const unsigned int real,
53066 + const unsigned int effective, const unsigned int fs)
53067 +{
53068 + struct task_struct *task = current;
53069 + const struct cred *cred = current_cred();
53070 +
53071 + security_learn(GR_ID_LEARN_MSG, task->role->rolename, task->role->roletype,
53072 + cred->uid, cred->gid, task->exec_file ? gr_to_filename1(task->exec_file->f_path.dentry,
53073 + task->exec_file->f_path.mnt) : task->acl->filename, task->acl->filename,
53074 + type, real, effective, fs, &task->signal->saved_ip);
53075 +
53076 + return;
53077 +}
53078 +
53079 +__u32
53080 +gr_search_file(const struct dentry * dentry, const __u32 mode,
53081 + const struct vfsmount * mnt)
53082 +{
53083 + __u32 retval = mode;
53084 + struct acl_subject_label *curracl;
53085 + struct acl_object_label *currobj;
53086 +
53087 + if (unlikely(!(gr_status & GR_READY)))
53088 + return (mode & ~GR_AUDITS);
53089 +
53090 + curracl = current->acl;
53091 +
53092 + currobj = chk_obj_label(dentry, mnt, curracl);
53093 + retval = currobj->mode & mode;
53094 +
53095 + /* if we're opening a specified transfer file for writing
53096 + (e.g. /dev/initctl), then transfer our role to init
53097 + */
53098 + if (unlikely(currobj->mode & GR_INIT_TRANSFER && retval & GR_WRITE &&
53099 + current->role->roletype & GR_ROLE_PERSIST)) {
53100 + struct task_struct *task = init_pid_ns.child_reaper;
53101 +
53102 + if (task->role != current->role) {
53103 + task->acl_sp_role = 0;
53104 + task->acl_role_id = current->acl_role_id;
53105 + task->role = current->role;
53106 + rcu_read_lock();
53107 + read_lock(&grsec_exec_file_lock);
53108 + gr_apply_subject_to_task(task);
53109 + read_unlock(&grsec_exec_file_lock);
53110 + rcu_read_unlock();
53111 + gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_INIT_TRANSFER_MSG);
53112 + }
53113 + }
53114 +
53115 + if (unlikely
53116 + ((curracl->mode & (GR_LEARN | GR_INHERITLEARN)) && !(mode & GR_NOPTRACE)
53117 + && (retval != (mode & ~(GR_AUDITS | GR_SUPPRESS))))) {
53118 + __u32 new_mode = mode;
53119 +
53120 + new_mode &= ~(GR_AUDITS | GR_SUPPRESS);
53121 +
53122 + retval = new_mode;
53123 +
53124 + if (new_mode & GR_EXEC && curracl->mode & GR_INHERITLEARN)
53125 + new_mode |= GR_INHERIT;
53126 +
53127 + if (!(mode & GR_NOLEARN))
53128 + gr_log_learn(dentry, mnt, new_mode);
53129 + }
53130 +
53131 + return retval;
53132 +}
53133 +
53134 +struct acl_object_label *gr_get_create_object(const struct dentry *new_dentry,
53135 + const struct dentry *parent,
53136 + const struct vfsmount *mnt)
53137 +{
53138 + struct name_entry *match;
53139 + struct acl_object_label *matchpo;
53140 + struct acl_subject_label *curracl;
53141 + char *path;
53142 +
53143 + if (unlikely(!(gr_status & GR_READY)))
53144 + return NULL;
53145 +
53146 + preempt_disable();
53147 + path = gr_to_filename_rbac(new_dentry, mnt);
53148 + match = lookup_name_entry_create(path);
53149 +
53150 + curracl = current->acl;
53151 +
53152 + if (match) {
53153 + read_lock(&gr_inode_lock);
53154 + matchpo = lookup_acl_obj_label_create(match->inode, match->device, curracl);
53155 + read_unlock(&gr_inode_lock);
53156 +
53157 + if (matchpo) {
53158 + preempt_enable();
53159 + return matchpo;
53160 + }
53161 + }
53162 +
53163 + // lookup parent
53164 +
53165 + matchpo = chk_obj_create_label(parent, mnt, curracl, path);
53166 +
53167 + preempt_enable();
53168 + return matchpo;
53169 +}
53170 +
53171 +__u32
53172 +gr_check_create(const struct dentry * new_dentry, const struct dentry * parent,
53173 + const struct vfsmount * mnt, const __u32 mode)
53174 +{
53175 + struct acl_object_label *matchpo;
53176 + __u32 retval;
53177 +
53178 + if (unlikely(!(gr_status & GR_READY)))
53179 + return (mode & ~GR_AUDITS);
53180 +
53181 + matchpo = gr_get_create_object(new_dentry, parent, mnt);
53182 +
53183 + retval = matchpo->mode & mode;
53184 +
53185 + if ((retval != (mode & ~(GR_AUDITS | GR_SUPPRESS)))
53186 + && (current->acl->mode & (GR_LEARN | GR_INHERITLEARN))) {
53187 + __u32 new_mode = mode;
53188 +
53189 + new_mode &= ~(GR_AUDITS | GR_SUPPRESS);
53190 +
53191 + gr_log_learn(new_dentry, mnt, new_mode);
53192 + return new_mode;
53193 + }
53194 +
53195 + return retval;
53196 +}
53197 +
53198 +__u32
53199 +gr_check_link(const struct dentry * new_dentry,
53200 + const struct dentry * parent_dentry,
53201 + const struct vfsmount * parent_mnt,
53202 + const struct dentry * old_dentry, const struct vfsmount * old_mnt)
53203 +{
53204 + struct acl_object_label *obj;
53205 + __u32 oldmode, newmode;
53206 + __u32 needmode;
53207 + __u32 checkmodes = GR_FIND | GR_APPEND | GR_WRITE | GR_EXEC | GR_SETID | GR_READ |
53208 + GR_DELETE | GR_INHERIT;
53209 +
53210 + if (unlikely(!(gr_status & GR_READY)))
53211 + return (GR_CREATE | GR_LINK);
53212 +
53213 + obj = chk_obj_label(old_dentry, old_mnt, current->acl);
53214 + oldmode = obj->mode;
53215 +
53216 + obj = gr_get_create_object(new_dentry, parent_dentry, parent_mnt);
53217 + newmode = obj->mode;
53218 +
53219 + needmode = newmode & checkmodes;
53220 +
53221 + // old name for hardlink must have at least the permissions of the new name
53222 + if ((oldmode & needmode) != needmode)
53223 + goto bad;
53224 +
53225 + // if old name had restrictions/auditing, make sure the new name does as well
53226 + needmode = oldmode & (GR_NOPTRACE | GR_PTRACERD | GR_INHERIT | GR_AUDITS);
53227 +
53228 + // don't allow hardlinking of suid/sgid/fcapped files without permission
53229 + if (is_privileged_binary(old_dentry))
53230 + needmode |= GR_SETID;
53231 +
53232 + if ((newmode & needmode) != needmode)
53233 + goto bad;
53234 +
53235 + // enforce minimum permissions
53236 + if ((newmode & (GR_CREATE | GR_LINK)) == (GR_CREATE | GR_LINK))
53237 + return newmode;
53238 +bad:
53239 + needmode = oldmode;
53240 + if (is_privileged_binary(old_dentry))
53241 + needmode |= GR_SETID;
53242 +
53243 + if (current->acl->mode & (GR_LEARN | GR_INHERITLEARN)) {
53244 + gr_log_learn(old_dentry, old_mnt, needmode | GR_CREATE | GR_LINK);
53245 + return (GR_CREATE | GR_LINK);
53246 + } else if (newmode & GR_SUPPRESS)
53247 + return GR_SUPPRESS;
53248 + else
53249 + return 0;
53250 +}
53251 +
53252 +int
53253 +gr_check_hidden_task(const struct task_struct *task)
53254 +{
53255 + if (unlikely(!(gr_status & GR_READY)))
53256 + return 0;
53257 +
53258 + if (!(task->acl->mode & GR_PROCFIND) && !(current->acl->mode & GR_VIEW))
53259 + return 1;
53260 +
53261 + return 0;
53262 +}
53263 +
53264 +int
53265 +gr_check_protected_task(const struct task_struct *task)
53266 +{
53267 + if (unlikely(!(gr_status & GR_READY) || !task))
53268 + return 0;
53269 +
53270 + if ((task->acl->mode & GR_PROTECTED) && !(current->acl->mode & GR_KILL) &&
53271 + task->acl != current->acl)
53272 + return 1;
53273 +
53274 + return 0;
53275 +}
53276 +
53277 +int
53278 +gr_check_protected_task_fowner(struct pid *pid, enum pid_type type)
53279 +{
53280 + struct task_struct *p;
53281 + int ret = 0;
53282 +
53283 + if (unlikely(!(gr_status & GR_READY) || !pid))
53284 + return ret;
53285 +
53286 + read_lock(&tasklist_lock);
53287 + do_each_pid_task(pid, type, p) {
53288 + if ((p->acl->mode & GR_PROTECTED) && !(current->acl->mode & GR_KILL) &&
53289 + p->acl != current->acl) {
53290 + ret = 1;
53291 + goto out;
53292 + }
53293 + } while_each_pid_task(pid, type, p);
53294 +out:
53295 + read_unlock(&tasklist_lock);
53296 +
53297 + return ret;
53298 +}
53299 +
53300 +void
53301 +gr_copy_label(struct task_struct *tsk)
53302 +{
53303 + tsk->signal->used_accept = 0;
53304 + tsk->acl_sp_role = 0;
53305 + tsk->acl_role_id = current->acl_role_id;
53306 + tsk->acl = current->acl;
53307 + tsk->role = current->role;
53308 + tsk->signal->curr_ip = current->signal->curr_ip;
53309 + tsk->signal->saved_ip = current->signal->saved_ip;
53310 + if (current->exec_file)
53311 + get_file(current->exec_file);
53312 + tsk->exec_file = current->exec_file;
53313 + tsk->is_writable = current->is_writable;
53314 + if (unlikely(current->signal->used_accept)) {
53315 + current->signal->curr_ip = 0;
53316 + current->signal->saved_ip = 0;
53317 + }
53318 +
53319 + return;
53320 +}
53321 +
53322 +static void
53323 +gr_set_proc_res(struct task_struct *task)
53324 +{
53325 + struct acl_subject_label *proc;
53326 + unsigned short i;
53327 +
53328 + proc = task->acl;
53329 +
53330 + if (proc->mode & (GR_LEARN | GR_INHERITLEARN))
53331 + return;
53332 +
53333 + for (i = 0; i < RLIM_NLIMITS; i++) {
53334 + if (!(proc->resmask & (1 << i)))
53335 + continue;
53336 +
53337 + task->signal->rlim[i].rlim_cur = proc->res[i].rlim_cur;
53338 + task->signal->rlim[i].rlim_max = proc->res[i].rlim_max;
53339 + }
53340 +
53341 + return;
53342 +}
53343 +
53344 +extern int __gr_process_user_ban(struct user_struct *user);
53345 +
53346 +int
53347 +gr_check_user_change(int real, int effective, int fs)
53348 +{
53349 + unsigned int i;
53350 + __u16 num;
53351 + uid_t *uidlist;
53352 + int curuid;
53353 + int realok = 0;
53354 + int effectiveok = 0;
53355 + int fsok = 0;
53356 +
53357 +#if defined(CONFIG_GRKERNSEC_KERN_LOCKOUT) || defined(CONFIG_GRKERNSEC_BRUTE)
53358 + struct user_struct *user;
53359 +
53360 + if (real == -1)
53361 + goto skipit;
53362 +
53363 + user = find_user(real);
53364 + if (user == NULL)
53365 + goto skipit;
53366 +
53367 + if (__gr_process_user_ban(user)) {
53368 + /* for find_user */
53369 + free_uid(user);
53370 + return 1;
53371 + }
53372 +
53373 + /* for find_user */
53374 + free_uid(user);
53375 +
53376 +skipit:
53377 +#endif
53378 +
53379 + if (unlikely(!(gr_status & GR_READY)))
53380 + return 0;
53381 +
53382 + if (current->acl->mode & (GR_LEARN | GR_INHERITLEARN))
53383 + gr_log_learn_id_change('u', real, effective, fs);
53384 +
53385 + num = current->acl->user_trans_num;
53386 + uidlist = current->acl->user_transitions;
53387 +
53388 + if (uidlist == NULL)
53389 + return 0;
53390 +
53391 + if (real == -1)
53392 + realok = 1;
53393 + if (effective == -1)
53394 + effectiveok = 1;
53395 + if (fs == -1)
53396 + fsok = 1;
53397 +
53398 + if (current->acl->user_trans_type & GR_ID_ALLOW) {
53399 + for (i = 0; i < num; i++) {
53400 + curuid = (int)uidlist[i];
53401 + if (real == curuid)
53402 + realok = 1;
53403 + if (effective == curuid)
53404 + effectiveok = 1;
53405 + if (fs == curuid)
53406 + fsok = 1;
53407 + }
53408 + } else if (current->acl->user_trans_type & GR_ID_DENY) {
53409 + for (i = 0; i < num; i++) {
53410 + curuid = (int)uidlist[i];
53411 + if (real == curuid)
53412 + break;
53413 + if (effective == curuid)
53414 + break;
53415 + if (fs == curuid)
53416 + break;
53417 + }
53418 + /* not in deny list */
53419 + if (i == num) {
53420 + realok = 1;
53421 + effectiveok = 1;
53422 + fsok = 1;
53423 + }
53424 + }
53425 +
53426 + if (realok && effectiveok && fsok)
53427 + return 0;
53428 + else {
53429 + gr_log_int(GR_DONT_AUDIT, GR_USRCHANGE_ACL_MSG, realok ? (effectiveok ? (fsok ? 0 : fs) : effective) : real);
53430 + return 1;
53431 + }
53432 +}
53433 +
53434 +int
53435 +gr_check_group_change(int real, int effective, int fs)
53436 +{
53437 + unsigned int i;
53438 + __u16 num;
53439 + gid_t *gidlist;
53440 + int curgid;
53441 + int realok = 0;
53442 + int effectiveok = 0;
53443 + int fsok = 0;
53444 +
53445 + if (unlikely(!(gr_status & GR_READY)))
53446 + return 0;
53447 +
53448 + if (current->acl->mode & (GR_LEARN | GR_INHERITLEARN))
53449 + gr_log_learn_id_change('g', real, effective, fs);
53450 +
53451 + num = current->acl->group_trans_num;
53452 + gidlist = current->acl->group_transitions;
53453 +
53454 + if (gidlist == NULL)
53455 + return 0;
53456 +
53457 + if (real == -1)
53458 + realok = 1;
53459 + if (effective == -1)
53460 + effectiveok = 1;
53461 + if (fs == -1)
53462 + fsok = 1;
53463 +
53464 + if (current->acl->group_trans_type & GR_ID_ALLOW) {
53465 + for (i = 0; i < num; i++) {
53466 + curgid = (int)gidlist[i];
53467 + if (real == curgid)
53468 + realok = 1;
53469 + if (effective == curgid)
53470 + effectiveok = 1;
53471 + if (fs == curgid)
53472 + fsok = 1;
53473 + }
53474 + } else if (current->acl->group_trans_type & GR_ID_DENY) {
53475 + for (i = 0; i < num; i++) {
53476 + curgid = (int)gidlist[i];
53477 + if (real == curgid)
53478 + break;
53479 + if (effective == curgid)
53480 + break;
53481 + if (fs == curgid)
53482 + break;
53483 + }
53484 + /* not in deny list */
53485 + if (i == num) {
53486 + realok = 1;
53487 + effectiveok = 1;
53488 + fsok = 1;
53489 + }
53490 + }
53491 +
53492 + if (realok && effectiveok && fsok)
53493 + return 0;
53494 + else {
53495 + gr_log_int(GR_DONT_AUDIT, GR_GRPCHANGE_ACL_MSG, realok ? (effectiveok ? (fsok ? 0 : fs) : effective) : real);
53496 + return 1;
53497 + }
53498 +}
53499 +
53500 +extern int gr_acl_is_capable(const int cap);
53501 +
53502 +void
53503 +gr_set_role_label(struct task_struct *task, const uid_t uid, const uid_t gid)
53504 +{
53505 + struct acl_role_label *role = task->role;
53506 + struct acl_subject_label *subj = NULL;
53507 + struct acl_object_label *obj;
53508 + struct file *filp;
53509 +
53510 + if (unlikely(!(gr_status & GR_READY)))
53511 + return;
53512 +
53513 + filp = task->exec_file;
53514 +
53515 + /* kernel process, we'll give them the kernel role */
53516 + if (unlikely(!filp)) {
53517 + task->role = kernel_role;
53518 + task->acl = kernel_role->root_label;
53519 + return;
53520 + } else if (!task->role || !(task->role->roletype & GR_ROLE_SPECIAL))
53521 + role = lookup_acl_role_label(task, uid, gid);
53522 +
53523 + /* don't change the role if we're not a privileged process */
53524 + if (role && task->role != role &&
53525 + (((role->roletype & GR_ROLE_USER) && !gr_acl_is_capable(CAP_SETUID)) ||
53526 + ((role->roletype & GR_ROLE_GROUP) && !gr_acl_is_capable(CAP_SETGID))))
53527 + return;
53528 +
53529 + /* perform subject lookup in possibly new role
53530 + we can use this result below in the case where role == task->role
53531 + */
53532 + subj = chk_subj_label(filp->f_path.dentry, filp->f_path.mnt, role);
53533 +
53534 + /* if we changed uid/gid, but result in the same role
53535 + and are using inheritance, don't lose the inherited subject
53536 + if current subject is other than what normal lookup
53537 + would result in, we arrived via inheritance, don't
53538 + lose subject
53539 + */
53540 + if (role != task->role || (!(task->acl->mode & GR_INHERITLEARN) &&
53541 + (subj == task->acl)))
53542 + task->acl = subj;
53543 +
53544 + task->role = role;
53545 +
53546 + task->is_writable = 0;
53547 +
53548 + /* ignore additional mmap checks for processes that are writable
53549 + by the default ACL */
53550 + obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, default_role->root_label);
53551 + if (unlikely(obj->mode & GR_WRITE))
53552 + task->is_writable = 1;
53553 + obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, task->role->root_label);
53554 + if (unlikely(obj->mode & GR_WRITE))
53555 + task->is_writable = 1;
53556 +
53557 +#ifdef CONFIG_GRKERNSEC_RBAC_DEBUG
53558 + printk(KERN_ALERT "Set role label for (%s:%d): role:%s, subject:%s\n", task->comm, task->pid, task->role->rolename, task->acl->filename);
53559 +#endif
53560 +
53561 + gr_set_proc_res(task);
53562 +
53563 + return;
53564 +}
53565 +
53566 +int
53567 +gr_set_proc_label(const struct dentry *dentry, const struct vfsmount *mnt,
53568 + const int unsafe_flags)
53569 +{
53570 + struct task_struct *task = current;
53571 + struct acl_subject_label *newacl;
53572 + struct acl_object_label *obj;
53573 + __u32 retmode;
53574 +
53575 + if (unlikely(!(gr_status & GR_READY)))
53576 + return 0;
53577 +
53578 + newacl = chk_subj_label(dentry, mnt, task->role);
53579 +
53580 + /* special handling for if we did an strace -f -p <pid> from an admin role, where pid then
53581 + did an exec
53582 + */
53583 + rcu_read_lock();
53584 + read_lock(&tasklist_lock);
53585 + if (task->ptrace && task->parent && ((task->parent->role->roletype & GR_ROLE_GOD) ||
53586 + (task->parent->acl->mode & GR_POVERRIDE))) {
53587 + read_unlock(&tasklist_lock);
53588 + rcu_read_unlock();
53589 + goto skip_check;
53590 + }
53591 + read_unlock(&tasklist_lock);
53592 + rcu_read_unlock();
53593 +
53594 + if (unsafe_flags && !(task->acl->mode & GR_POVERRIDE) && (task->acl != newacl) &&
53595 + !(task->role->roletype & GR_ROLE_GOD) &&
53596 + !gr_search_file(dentry, GR_PTRACERD, mnt) &&
53597 + !(task->acl->mode & (GR_LEARN | GR_INHERITLEARN))) {
53598 + if (unsafe_flags & LSM_UNSAFE_SHARE)
53599 + gr_log_fs_generic(GR_DONT_AUDIT, GR_UNSAFESHARE_EXEC_ACL_MSG, dentry, mnt);
53600 + else
53601 + gr_log_fs_generic(GR_DONT_AUDIT, GR_PTRACE_EXEC_ACL_MSG, dentry, mnt);
53602 + return -EACCES;
53603 + }
53604 +
53605 +skip_check:
53606 +
53607 + obj = chk_obj_label(dentry, mnt, task->acl);
53608 + retmode = obj->mode & (GR_INHERIT | GR_AUDIT_INHERIT);
53609 +
53610 + if (!(task->acl->mode & GR_INHERITLEARN) &&
53611 + ((newacl->mode & GR_LEARN) || !(retmode & GR_INHERIT))) {
53612 + if (obj->nested)
53613 + task->acl = obj->nested;
53614 + else
53615 + task->acl = newacl;
53616 + } else if (retmode & GR_INHERIT && retmode & GR_AUDIT_INHERIT)
53617 + gr_log_str_fs(GR_DO_AUDIT, GR_INHERIT_ACL_MSG, task->acl->filename, dentry, mnt);
53618 +
53619 + task->is_writable = 0;
53620 +
53621 + /* ignore additional mmap checks for processes that are writable
53622 + by the default ACL */
53623 + obj = chk_obj_label(dentry, mnt, default_role->root_label);
53624 + if (unlikely(obj->mode & GR_WRITE))
53625 + task->is_writable = 1;
53626 + obj = chk_obj_label(dentry, mnt, task->role->root_label);
53627 + if (unlikely(obj->mode & GR_WRITE))
53628 + task->is_writable = 1;
53629 +
53630 + gr_set_proc_res(task);
53631 +
53632 +#ifdef CONFIG_GRKERNSEC_RBAC_DEBUG
53633 + printk(KERN_ALERT "Set subject label for (%s:%d): role:%s, subject:%s\n", task->comm, task->pid, task->role->rolename, task->acl->filename);
53634 +#endif
53635 + return 0;
53636 +}
53637 +
53638 +/* always called with valid inodev ptr */
53639 +static void
53640 +do_handle_delete(struct inodev_entry *inodev, const ino_t ino, const dev_t dev)
53641 +{
53642 + struct acl_object_label *matchpo;
53643 + struct acl_subject_label *matchps;
53644 + struct acl_subject_label *subj;
53645 + struct acl_role_label *role;
53646 + unsigned int x;
53647 +
53648 + FOR_EACH_ROLE_START(role)
53649 + FOR_EACH_SUBJECT_START(role, subj, x)
53650 + if ((matchpo = lookup_acl_obj_label(ino, dev, subj)) != NULL)
53651 + matchpo->mode |= GR_DELETED;
53652 + FOR_EACH_SUBJECT_END(subj,x)
53653 + FOR_EACH_NESTED_SUBJECT_START(role, subj)
53654 + if (subj->inode == ino && subj->device == dev)
53655 + subj->mode |= GR_DELETED;
53656 + FOR_EACH_NESTED_SUBJECT_END(subj)
53657 + if ((matchps = lookup_acl_subj_label(ino, dev, role)) != NULL)
53658 + matchps->mode |= GR_DELETED;
53659 + FOR_EACH_ROLE_END(role)
53660 +
53661 + inodev->nentry->deleted = 1;
53662 +
53663 + return;
53664 +}
53665 +
53666 +void
53667 +gr_handle_delete(const ino_t ino, const dev_t dev)
53668 +{
53669 + struct inodev_entry *inodev;
53670 +
53671 + if (unlikely(!(gr_status & GR_READY)))
53672 + return;
53673 +
53674 + write_lock(&gr_inode_lock);
53675 + inodev = lookup_inodev_entry(ino, dev);
53676 + if (inodev != NULL)
53677 + do_handle_delete(inodev, ino, dev);
53678 + write_unlock(&gr_inode_lock);
53679 +
53680 + return;
53681 +}
53682 +
53683 +static void
53684 +update_acl_obj_label(const ino_t oldinode, const dev_t olddevice,
53685 + const ino_t newinode, const dev_t newdevice,
53686 + struct acl_subject_label *subj)
53687 +{
53688 + unsigned int index = fhash(oldinode, olddevice, subj->obj_hash_size);
53689 + struct acl_object_label *match;
53690 +
53691 + match = subj->obj_hash[index];
53692 +
53693 + while (match && (match->inode != oldinode ||
53694 + match->device != olddevice ||
53695 + !(match->mode & GR_DELETED)))
53696 + match = match->next;
53697 +
53698 + if (match && (match->inode == oldinode)
53699 + && (match->device == olddevice)
53700 + && (match->mode & GR_DELETED)) {
53701 + if (match->prev == NULL) {
53702 + subj->obj_hash[index] = match->next;
53703 + if (match->next != NULL)
53704 + match->next->prev = NULL;
53705 + } else {
53706 + match->prev->next = match->next;
53707 + if (match->next != NULL)
53708 + match->next->prev = match->prev;
53709 + }
53710 + match->prev = NULL;
53711 + match->next = NULL;
53712 + match->inode = newinode;
53713 + match->device = newdevice;
53714 + match->mode &= ~GR_DELETED;
53715 +
53716 + insert_acl_obj_label(match, subj);
53717 + }
53718 +
53719 + return;
53720 +}
53721 +
53722 +static void
53723 +update_acl_subj_label(const ino_t oldinode, const dev_t olddevice,
53724 + const ino_t newinode, const dev_t newdevice,
53725 + struct acl_role_label *role)
53726 +{
53727 + unsigned int index = fhash(oldinode, olddevice, role->subj_hash_size);
53728 + struct acl_subject_label *match;
53729 +
53730 + match = role->subj_hash[index];
53731 +
53732 + while (match && (match->inode != oldinode ||
53733 + match->device != olddevice ||
53734 + !(match->mode & GR_DELETED)))
53735 + match = match->next;
53736 +
53737 + if (match && (match->inode == oldinode)
53738 + && (match->device == olddevice)
53739 + && (match->mode & GR_DELETED)) {
53740 + if (match->prev == NULL) {
53741 + role->subj_hash[index] = match->next;
53742 + if (match->next != NULL)
53743 + match->next->prev = NULL;
53744 + } else {
53745 + match->prev->next = match->next;
53746 + if (match->next != NULL)
53747 + match->next->prev = match->prev;
53748 + }
53749 + match->prev = NULL;
53750 + match->next = NULL;
53751 + match->inode = newinode;
53752 + match->device = newdevice;
53753 + match->mode &= ~GR_DELETED;
53754 +
53755 + insert_acl_subj_label(match, role);
53756 + }
53757 +
53758 + return;
53759 +}
53760 +
53761 +static void
53762 +update_inodev_entry(const ino_t oldinode, const dev_t olddevice,
53763 + const ino_t newinode, const dev_t newdevice)
53764 +{
53765 + unsigned int index = fhash(oldinode, olddevice, inodev_set.i_size);
53766 + struct inodev_entry *match;
53767 +
53768 + match = inodev_set.i_hash[index];
53769 +
53770 + while (match && (match->nentry->inode != oldinode ||
53771 + match->nentry->device != olddevice || !match->nentry->deleted))
53772 + match = match->next;
53773 +
53774 + if (match && (match->nentry->inode == oldinode)
53775 + && (match->nentry->device == olddevice) &&
53776 + match->nentry->deleted) {
53777 + if (match->prev == NULL) {
53778 + inodev_set.i_hash[index] = match->next;
53779 + if (match->next != NULL)
53780 + match->next->prev = NULL;
53781 + } else {
53782 + match->prev->next = match->next;
53783 + if (match->next != NULL)
53784 + match->next->prev = match->prev;
53785 + }
53786 + match->prev = NULL;
53787 + match->next = NULL;
53788 + match->nentry->inode = newinode;
53789 + match->nentry->device = newdevice;
53790 + match->nentry->deleted = 0;
53791 +
53792 + insert_inodev_entry(match);
53793 + }
53794 +
53795 + return;
53796 +}
53797 +
53798 +static void
53799 +__do_handle_create(const struct name_entry *matchn, ino_t ino, dev_t dev)
53800 +{
53801 + struct acl_subject_label *subj;
53802 + struct acl_role_label *role;
53803 + unsigned int x;
53804 +
53805 + FOR_EACH_ROLE_START(role)
53806 + update_acl_subj_label(matchn->inode, matchn->device, ino, dev, role);
53807 +
53808 + FOR_EACH_NESTED_SUBJECT_START(role, subj)
53809 + if ((subj->inode == ino) && (subj->device == dev)) {
53810 + subj->inode = ino;
53811 + subj->device = dev;
53812 + }
53813 + FOR_EACH_NESTED_SUBJECT_END(subj)
53814 + FOR_EACH_SUBJECT_START(role, subj, x)
53815 + update_acl_obj_label(matchn->inode, matchn->device,
53816 + ino, dev, subj);
53817 + FOR_EACH_SUBJECT_END(subj,x)
53818 + FOR_EACH_ROLE_END(role)
53819 +
53820 + update_inodev_entry(matchn->inode, matchn->device, ino, dev);
53821 +
53822 + return;
53823 +}
53824 +
53825 +static void
53826 +do_handle_create(const struct name_entry *matchn, const struct dentry *dentry,
53827 + const struct vfsmount *mnt)
53828 +{
53829 + ino_t ino = dentry->d_inode->i_ino;
53830 + dev_t dev = __get_dev(dentry);
53831 +
53832 + __do_handle_create(matchn, ino, dev);
53833 +
53834 + return;
53835 +}
53836 +
53837 +void
53838 +gr_handle_create(const struct dentry *dentry, const struct vfsmount *mnt)
53839 +{
53840 + struct name_entry *matchn;
53841 +
53842 + if (unlikely(!(gr_status & GR_READY)))
53843 + return;
53844 +
53845 + preempt_disable();
53846 + matchn = lookup_name_entry(gr_to_filename_rbac(dentry, mnt));
53847 +
53848 + if (unlikely((unsigned long)matchn)) {
53849 + write_lock(&gr_inode_lock);
53850 + do_handle_create(matchn, dentry, mnt);
53851 + write_unlock(&gr_inode_lock);
53852 + }
53853 + preempt_enable();
53854 +
53855 + return;
53856 +}
53857 +
53858 +void
53859 +gr_handle_proc_create(const struct dentry *dentry, const struct inode *inode)
53860 +{
53861 + struct name_entry *matchn;
53862 +
53863 + if (unlikely(!(gr_status & GR_READY)))
53864 + return;
53865 +
53866 + preempt_disable();
53867 + matchn = lookup_name_entry(gr_to_proc_filename_rbac(dentry, init_pid_ns.proc_mnt));
53868 +
53869 + if (unlikely((unsigned long)matchn)) {
53870 + write_lock(&gr_inode_lock);
53871 + __do_handle_create(matchn, inode->i_ino, inode->i_sb->s_dev);
53872 + write_unlock(&gr_inode_lock);
53873 + }
53874 + preempt_enable();
53875 +
53876 + return;
53877 +}
53878 +
53879 +void
53880 +gr_handle_rename(struct inode *old_dir, struct inode *new_dir,
53881 + struct dentry *old_dentry,
53882 + struct dentry *new_dentry,
53883 + struct vfsmount *mnt, const __u8 replace)
53884 +{
53885 + struct name_entry *matchn;
53886 + struct inodev_entry *inodev;
53887 + struct inode *inode = new_dentry->d_inode;
53888 + ino_t old_ino = old_dentry->d_inode->i_ino;
53889 + dev_t old_dev = __get_dev(old_dentry);
53890 +
53891 + /* vfs_rename swaps the name and parent link for old_dentry and
53892 + new_dentry
53893 + at this point, old_dentry has the new name, parent link, and inode
53894 + for the renamed file
53895 + if a file is being replaced by a rename, new_dentry has the inode
53896 + and name for the replaced file
53897 + */
53898 +
53899 + if (unlikely(!(gr_status & GR_READY)))
53900 + return;
53901 +
53902 + preempt_disable();
53903 + matchn = lookup_name_entry(gr_to_filename_rbac(old_dentry, mnt));
53904 +
53905 + /* we wouldn't have to check d_inode if it weren't for
53906 + NFS silly-renaming
53907 + */
53908 +
53909 + write_lock(&gr_inode_lock);
53910 + if (unlikely(replace && inode)) {
53911 + ino_t new_ino = inode->i_ino;
53912 + dev_t new_dev = __get_dev(new_dentry);
53913 +
53914 + inodev = lookup_inodev_entry(new_ino, new_dev);
53915 + if (inodev != NULL && ((inode->i_nlink <= 1) || S_ISDIR(inode->i_mode)))
53916 + do_handle_delete(inodev, new_ino, new_dev);
53917 + }
53918 +
53919 + inodev = lookup_inodev_entry(old_ino, old_dev);
53920 + if (inodev != NULL && ((old_dentry->d_inode->i_nlink <= 1) || S_ISDIR(old_dentry->d_inode->i_mode)))
53921 + do_handle_delete(inodev, old_ino, old_dev);
53922 +
53923 + if (unlikely((unsigned long)matchn))
53924 + do_handle_create(matchn, old_dentry, mnt);
53925 +
53926 + write_unlock(&gr_inode_lock);
53927 + preempt_enable();
53928 +
53929 + return;
53930 +}
53931 +
53932 +static int
53933 +lookup_special_role_auth(__u16 mode, const char *rolename, unsigned char **salt,
53934 + unsigned char **sum)
53935 +{
53936 + struct acl_role_label *r;
53937 + struct role_allowed_ip *ipp;
53938 + struct role_transition *trans;
53939 + unsigned int i;
53940 + int found = 0;
53941 + u32 curr_ip = current->signal->curr_ip;
53942 +
53943 + current->signal->saved_ip = curr_ip;
53944 +
53945 + /* check transition table */
53946 +
53947 + for (trans = current->role->transitions; trans; trans = trans->next) {
53948 + if (!strcmp(rolename, trans->rolename)) {
53949 + found = 1;
53950 + break;
53951 + }
53952 + }
53953 +
53954 + if (!found)
53955 + return 0;
53956 +
53957 + /* handle special roles that do not require authentication
53958 + and check ip */
53959 +
53960 + FOR_EACH_ROLE_START(r)
53961 + if (!strcmp(rolename, r->rolename) &&
53962 + (r->roletype & GR_ROLE_SPECIAL)) {
53963 + found = 0;
53964 + if (r->allowed_ips != NULL) {
53965 + for (ipp = r->allowed_ips; ipp; ipp = ipp->next) {
53966 + if ((ntohl(curr_ip) & ipp->netmask) ==
53967 + (ntohl(ipp->addr) & ipp->netmask))
53968 + found = 1;
53969 + }
53970 + } else
53971 + found = 2;
53972 + if (!found)
53973 + return 0;
53974 +
53975 + if (((mode == GR_SPROLE) && (r->roletype & GR_ROLE_NOPW)) ||
53976 + ((mode == GR_SPROLEPAM) && (r->roletype & GR_ROLE_PAM))) {
53977 + *salt = NULL;
53978 + *sum = NULL;
53979 + return 1;
53980 + }
53981 + }
53982 + FOR_EACH_ROLE_END(r)
53983 +
53984 + for (i = 0; i < num_sprole_pws; i++) {
53985 + if (!strcmp(rolename, acl_special_roles[i]->rolename)) {
53986 + *salt = acl_special_roles[i]->salt;
53987 + *sum = acl_special_roles[i]->sum;
53988 + return 1;
53989 + }
53990 + }
53991 +
53992 + return 0;
53993 +}
53994 +
53995 +static void
53996 +assign_special_role(char *rolename)
53997 +{
53998 + struct acl_object_label *obj;
53999 + struct acl_role_label *r;
54000 + struct acl_role_label *assigned = NULL;
54001 + struct task_struct *tsk;
54002 + struct file *filp;
54003 +
54004 + FOR_EACH_ROLE_START(r)
54005 + if (!strcmp(rolename, r->rolename) &&
54006 + (r->roletype & GR_ROLE_SPECIAL)) {
54007 + assigned = r;
54008 + break;
54009 + }
54010 + FOR_EACH_ROLE_END(r)
54011 +
54012 + if (!assigned)
54013 + return;
54014 +
54015 + read_lock(&tasklist_lock);
54016 + read_lock(&grsec_exec_file_lock);
54017 +
54018 + tsk = current->real_parent;
54019 + if (tsk == NULL)
54020 + goto out_unlock;
54021 +
54022 + filp = tsk->exec_file;
54023 + if (filp == NULL)
54024 + goto out_unlock;
54025 +
54026 + tsk->is_writable = 0;
54027 +
54028 + tsk->acl_sp_role = 1;
54029 + tsk->acl_role_id = ++acl_sp_role_value;
54030 + tsk->role = assigned;
54031 + tsk->acl = chk_subj_label(filp->f_path.dentry, filp->f_path.mnt, tsk->role);
54032 +
54033 + /* ignore additional mmap checks for processes that are writable
54034 + by the default ACL */
54035 + obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, default_role->root_label);
54036 + if (unlikely(obj->mode & GR_WRITE))
54037 + tsk->is_writable = 1;
54038 + obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, tsk->role->root_label);
54039 + if (unlikely(obj->mode & GR_WRITE))
54040 + tsk->is_writable = 1;
54041 +
54042 +#ifdef CONFIG_GRKERNSEC_RBAC_DEBUG
54043 + printk(KERN_ALERT "Assigning special role:%s subject:%s to process (%s:%d)\n", tsk->role->rolename, tsk->acl->filename, tsk->comm, tsk->pid);
54044 +#endif
54045 +
54046 +out_unlock:
54047 + read_unlock(&grsec_exec_file_lock);
54048 + read_unlock(&tasklist_lock);
54049 + return;
54050 +}
54051 +
54052 +int gr_check_secure_terminal(struct task_struct *task)
54053 +{
54054 + struct task_struct *p, *p2, *p3;
54055 + struct files_struct *files;
54056 + struct fdtable *fdt;
54057 + struct file *our_file = NULL, *file;
54058 + int i;
54059 +
54060 + if (task->signal->tty == NULL)
54061 + return 1;
54062 +
54063 + files = get_files_struct(task);
54064 + if (files != NULL) {
54065 + rcu_read_lock();
54066 + fdt = files_fdtable(files);
54067 + for (i=0; i < fdt->max_fds; i++) {
54068 + file = fcheck_files(files, i);
54069 + if (file && (our_file == NULL) && (file->private_data == task->signal->tty)) {
54070 + get_file(file);
54071 + our_file = file;
54072 + }
54073 + }
54074 + rcu_read_unlock();
54075 + put_files_struct(files);
54076 + }
54077 +
54078 + if (our_file == NULL)
54079 + return 1;
54080 +
54081 + read_lock(&tasklist_lock);
54082 + do_each_thread(p2, p) {
54083 + files = get_files_struct(p);
54084 + if (files == NULL ||
54085 + (p->signal && p->signal->tty == task->signal->tty)) {
54086 + if (files != NULL)
54087 + put_files_struct(files);
54088 + continue;
54089 + }
54090 + rcu_read_lock();
54091 + fdt = files_fdtable(files);
54092 + for (i=0; i < fdt->max_fds; i++) {
54093 + file = fcheck_files(files, i);
54094 + if (file && S_ISCHR(file->f_path.dentry->d_inode->i_mode) &&
54095 + file->f_path.dentry->d_inode->i_rdev == our_file->f_path.dentry->d_inode->i_rdev) {
54096 + p3 = task;
54097 + while (p3->pid > 0) {
54098 + if (p3 == p)
54099 + break;
54100 + p3 = p3->real_parent;
54101 + }
54102 + if (p3 == p)
54103 + break;
54104 + gr_log_ttysniff(GR_DONT_AUDIT_GOOD, GR_TTYSNIFF_ACL_MSG, p);
54105 + gr_handle_alertkill(p);
54106 + rcu_read_unlock();
54107 + put_files_struct(files);
54108 + read_unlock(&tasklist_lock);
54109 + fput(our_file);
54110 + return 0;
54111 + }
54112 + }
54113 + rcu_read_unlock();
54114 + put_files_struct(files);
54115 + } while_each_thread(p2, p);
54116 + read_unlock(&tasklist_lock);
54117 +
54118 + fput(our_file);
54119 + return 1;
54120 +}
54121 +
54122 +static int gr_rbac_disable(void *unused)
54123 +{
54124 + pax_open_kernel();
54125 + gr_status &= ~GR_READY;
54126 + pax_close_kernel();
54127 +
54128 + return 0;
54129 +}
54130 +
54131 +ssize_t
54132 +write_grsec_handler(struct file *file, const char * buf, size_t count, loff_t *ppos)
54133 +{
54134 + struct gr_arg_wrapper uwrap;
54135 + unsigned char *sprole_salt = NULL;
54136 + unsigned char *sprole_sum = NULL;
54137 + int error = sizeof (struct gr_arg_wrapper);
54138 + int error2 = 0;
54139 +
54140 + mutex_lock(&gr_dev_mutex);
54141 +
54142 + if ((gr_status & GR_READY) && !(current->acl->mode & GR_KERNELAUTH)) {
54143 + error = -EPERM;
54144 + goto out;
54145 + }
54146 +
54147 + if (count != sizeof (struct gr_arg_wrapper)) {
54148 + gr_log_int_int(GR_DONT_AUDIT_GOOD, GR_DEV_ACL_MSG, (int)count, (int)sizeof(struct gr_arg_wrapper));
54149 + error = -EINVAL;
54150 + goto out;
54151 + }
54152 +
54153 +
54154 + if (gr_auth_expires && time_after_eq(get_seconds(), gr_auth_expires)) {
54155 + gr_auth_expires = 0;
54156 + gr_auth_attempts = 0;
54157 + }
54158 +
54159 + if (copy_from_user(&uwrap, buf, sizeof (struct gr_arg_wrapper))) {
54160 + error = -EFAULT;
54161 + goto out;
54162 + }
54163 +
54164 + if ((uwrap.version != GRSECURITY_VERSION) || (uwrap.size != sizeof(struct gr_arg))) {
54165 + error = -EINVAL;
54166 + goto out;
54167 + }
54168 +
54169 + if (copy_from_user(gr_usermode, uwrap.arg, sizeof (struct gr_arg))) {
54170 + error = -EFAULT;
54171 + goto out;
54172 + }
54173 +
54174 + if (gr_usermode->mode != GR_SPROLE && gr_usermode->mode != GR_SPROLEPAM &&
54175 + gr_auth_attempts >= CONFIG_GRKERNSEC_ACL_MAXTRIES &&
54176 + time_after(gr_auth_expires, get_seconds())) {
54177 + error = -EBUSY;
54178 + goto out;
54179 + }
54180 +
54181 + /* if non-root trying to do anything other than use a special role,
54182 + do not attempt authentication, do not count towards authentication
54183 + locking
54184 + */
54185 +
54186 + if (gr_usermode->mode != GR_SPROLE && gr_usermode->mode != GR_STATUS &&
54187 + gr_usermode->mode != GR_UNSPROLE && gr_usermode->mode != GR_SPROLEPAM &&
54188 + !uid_eq(current_uid(), GLOBAL_ROOT_UID)) {
54189 + error = -EPERM;
54190 + goto out;
54191 + }
54192 +
54193 + /* ensure pw and special role name are null terminated */
54194 +
54195 + gr_usermode->pw[GR_PW_LEN - 1] = '\0';
54196 + gr_usermode->sp_role[GR_SPROLE_LEN - 1] = '\0';
54197 +
54198 + /* Okay.
54199 + * We have our enough of the argument structure..(we have yet
54200 + * to copy_from_user the tables themselves) . Copy the tables
54201 + * only if we need them, i.e. for loading operations. */
54202 +
54203 + switch (gr_usermode->mode) {
54204 + case GR_STATUS:
54205 + if (gr_status & GR_READY) {
54206 + error = 1;
54207 + if (!gr_check_secure_terminal(current))
54208 + error = 3;
54209 + } else
54210 + error = 2;
54211 + goto out;
54212 + case GR_SHUTDOWN:
54213 + if ((gr_status & GR_READY)
54214 + && !(chkpw(gr_usermode, gr_system_salt, gr_system_sum))) {
54215 + stop_machine(gr_rbac_disable, NULL, NULL);
54216 + free_variables();
54217 + memset(gr_usermode, 0, sizeof (struct gr_arg));
54218 + memset(gr_system_salt, 0, GR_SALT_LEN);
54219 + memset(gr_system_sum, 0, GR_SHA_LEN);
54220 + gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_SHUTS_ACL_MSG);
54221 + } else if (gr_status & GR_READY) {
54222 + gr_log_noargs(GR_DONT_AUDIT, GR_SHUTF_ACL_MSG);
54223 + error = -EPERM;
54224 + } else {
54225 + gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_SHUTI_ACL_MSG);
54226 + error = -EAGAIN;
54227 + }
54228 + break;
54229 + case GR_ENABLE:
54230 + if (!(gr_status & GR_READY) && !(error2 = gracl_init(gr_usermode)))
54231 + gr_log_str(GR_DONT_AUDIT_GOOD, GR_ENABLE_ACL_MSG, GR_VERSION);
54232 + else {
54233 + if (gr_status & GR_READY)
54234 + error = -EAGAIN;
54235 + else
54236 + error = error2;
54237 + gr_log_str(GR_DONT_AUDIT, GR_ENABLEF_ACL_MSG, GR_VERSION);
54238 + }
54239 + break;
54240 + case GR_RELOAD:
54241 + if (!(gr_status & GR_READY)) {
54242 + gr_log_str(GR_DONT_AUDIT_GOOD, GR_RELOADI_ACL_MSG, GR_VERSION);
54243 + error = -EAGAIN;
54244 + } else if (!(chkpw(gr_usermode, gr_system_salt, gr_system_sum))) {
54245 + stop_machine(gr_rbac_disable, NULL, NULL);
54246 + free_variables();
54247 + error2 = gracl_init(gr_usermode);
54248 + if (!error2)
54249 + gr_log_str(GR_DONT_AUDIT_GOOD, GR_RELOAD_ACL_MSG, GR_VERSION);
54250 + else {
54251 + gr_log_str(GR_DONT_AUDIT, GR_RELOADF_ACL_MSG, GR_VERSION);
54252 + error = error2;
54253 + }
54254 + } else {
54255 + gr_log_str(GR_DONT_AUDIT, GR_RELOADF_ACL_MSG, GR_VERSION);
54256 + error = -EPERM;
54257 + }
54258 + break;
54259 + case GR_SEGVMOD:
54260 + if (unlikely(!(gr_status & GR_READY))) {
54261 + gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_SEGVMODI_ACL_MSG);
54262 + error = -EAGAIN;
54263 + break;
54264 + }
54265 +
54266 + if (!(chkpw(gr_usermode, gr_system_salt, gr_system_sum))) {
54267 + gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_SEGVMODS_ACL_MSG);
54268 + if (gr_usermode->segv_device && gr_usermode->segv_inode) {
54269 + struct acl_subject_label *segvacl;
54270 + segvacl =
54271 + lookup_acl_subj_label(gr_usermode->segv_inode,
54272 + gr_usermode->segv_device,
54273 + current->role);
54274 + if (segvacl) {
54275 + segvacl->crashes = 0;
54276 + segvacl->expires = 0;
54277 + }
54278 + } else if (gr_find_uid(gr_usermode->segv_uid) >= 0) {
54279 + gr_remove_uid(gr_usermode->segv_uid);
54280 + }
54281 + } else {
54282 + gr_log_noargs(GR_DONT_AUDIT, GR_SEGVMODF_ACL_MSG);
54283 + error = -EPERM;
54284 + }
54285 + break;
54286 + case GR_SPROLE:
54287 + case GR_SPROLEPAM:
54288 + if (unlikely(!(gr_status & GR_READY))) {
54289 + gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_SPROLEI_ACL_MSG);
54290 + error = -EAGAIN;
54291 + break;
54292 + }
54293 +
54294 + if (current->role->expires && time_after_eq(get_seconds(), current->role->expires)) {
54295 + current->role->expires = 0;
54296 + current->role->auth_attempts = 0;
54297 + }
54298 +
54299 + if (current->role->auth_attempts >= CONFIG_GRKERNSEC_ACL_MAXTRIES &&
54300 + time_after(current->role->expires, get_seconds())) {
54301 + error = -EBUSY;
54302 + goto out;
54303 + }
54304 +
54305 + if (lookup_special_role_auth
54306 + (gr_usermode->mode, gr_usermode->sp_role, &sprole_salt, &sprole_sum)
54307 + && ((!sprole_salt && !sprole_sum)
54308 + || !(chkpw(gr_usermode, sprole_salt, sprole_sum)))) {
54309 + char *p = "";
54310 + assign_special_role(gr_usermode->sp_role);
54311 + read_lock(&tasklist_lock);
54312 + if (current->real_parent)
54313 + p = current->real_parent->role->rolename;
54314 + read_unlock(&tasklist_lock);
54315 + gr_log_str_int(GR_DONT_AUDIT_GOOD, GR_SPROLES_ACL_MSG,
54316 + p, acl_sp_role_value);
54317 + } else {
54318 + gr_log_str(GR_DONT_AUDIT, GR_SPROLEF_ACL_MSG, gr_usermode->sp_role);
54319 + error = -EPERM;
54320 + if(!(current->role->auth_attempts++))
54321 + current->role->expires = get_seconds() + CONFIG_GRKERNSEC_ACL_TIMEOUT;
54322 +
54323 + goto out;
54324 + }
54325 + break;
54326 + case GR_UNSPROLE:
54327 + if (unlikely(!(gr_status & GR_READY))) {
54328 + gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_UNSPROLEI_ACL_MSG);
54329 + error = -EAGAIN;
54330 + break;
54331 + }
54332 +
54333 + if (current->role->roletype & GR_ROLE_SPECIAL) {
54334 + char *p = "";
54335 + int i = 0;
54336 +
54337 + read_lock(&tasklist_lock);
54338 + if (current->real_parent) {
54339 + p = current->real_parent->role->rolename;
54340 + i = current->real_parent->acl_role_id;
54341 + }
54342 + read_unlock(&tasklist_lock);
54343 +
54344 + gr_log_str_int(GR_DONT_AUDIT_GOOD, GR_UNSPROLES_ACL_MSG, p, i);
54345 + gr_set_acls(1);
54346 + } else {
54347 + error = -EPERM;
54348 + goto out;
54349 + }
54350 + break;
54351 + default:
54352 + gr_log_int(GR_DONT_AUDIT, GR_INVMODE_ACL_MSG, gr_usermode->mode);
54353 + error = -EINVAL;
54354 + break;
54355 + }
54356 +
54357 + if (error != -EPERM)
54358 + goto out;
54359 +
54360 + if(!(gr_auth_attempts++))
54361 + gr_auth_expires = get_seconds() + CONFIG_GRKERNSEC_ACL_TIMEOUT;
54362 +
54363 + out:
54364 + mutex_unlock(&gr_dev_mutex);
54365 + return error;
54366 +}
54367 +
54368 +/* must be called with
54369 + rcu_read_lock();
54370 + read_lock(&tasklist_lock);
54371 + read_lock(&grsec_exec_file_lock);
54372 +*/
54373 +int gr_apply_subject_to_task(struct task_struct *task)
54374 +{
54375 + struct acl_object_label *obj;
54376 + char *tmpname;
54377 + struct acl_subject_label *tmpsubj;
54378 + struct file *filp;
54379 + struct name_entry *nmatch;
54380 +
54381 + filp = task->exec_file;
54382 + if (filp == NULL)
54383 + return 0;
54384 +
54385 + /* the following is to apply the correct subject
54386 + on binaries running when the RBAC system
54387 + is enabled, when the binaries have been
54388 + replaced or deleted since their execution
54389 + -----
54390 + when the RBAC system starts, the inode/dev
54391 + from exec_file will be one the RBAC system
54392 + is unaware of. It only knows the inode/dev
54393 + of the present file on disk, or the absence
54394 + of it.
54395 + */
54396 + preempt_disable();
54397 + tmpname = gr_to_filename_rbac(filp->f_path.dentry, filp->f_path.mnt);
54398 +
54399 + nmatch = lookup_name_entry(tmpname);
54400 + preempt_enable();
54401 + tmpsubj = NULL;
54402 + if (nmatch) {
54403 + if (nmatch->deleted)
54404 + tmpsubj = lookup_acl_subj_label_deleted(nmatch->inode, nmatch->device, task->role);
54405 + else
54406 + tmpsubj = lookup_acl_subj_label(nmatch->inode, nmatch->device, task->role);
54407 + if (tmpsubj != NULL)
54408 + task->acl = tmpsubj;
54409 + }
54410 + if (tmpsubj == NULL)
54411 + task->acl = chk_subj_label(filp->f_path.dentry, filp->f_path.mnt,
54412 + task->role);
54413 + if (task->acl) {
54414 + task->is_writable = 0;
54415 + /* ignore additional mmap checks for processes that are writable
54416 + by the default ACL */
54417 + obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, default_role->root_label);
54418 + if (unlikely(obj->mode & GR_WRITE))
54419 + task->is_writable = 1;
54420 + obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, task->role->root_label);
54421 + if (unlikely(obj->mode & GR_WRITE))
54422 + task->is_writable = 1;
54423 +
54424 + gr_set_proc_res(task);
54425 +
54426 +#ifdef CONFIG_GRKERNSEC_RBAC_DEBUG
54427 + printk(KERN_ALERT "gr_set_acls for (%s:%d): role:%s, subject:%s\n", task->comm, task->pid, task->role->rolename, task->acl->filename);
54428 +#endif
54429 + } else {
54430 + return 1;
54431 + }
54432 +
54433 + return 0;
54434 +}
54435 +
54436 +int
54437 +gr_set_acls(const int type)
54438 +{
54439 + struct task_struct *task, *task2;
54440 + struct acl_role_label *role = current->role;
54441 + __u16 acl_role_id = current->acl_role_id;
54442 + const struct cred *cred;
54443 + int ret;
54444 +
54445 + rcu_read_lock();
54446 + read_lock(&tasklist_lock);
54447 + read_lock(&grsec_exec_file_lock);
54448 + do_each_thread(task2, task) {
54449 + /* check to see if we're called from the exit handler,
54450 + if so, only replace ACLs that have inherited the admin
54451 + ACL */
54452 +
54453 + if (type && (task->role != role ||
54454 + task->acl_role_id != acl_role_id))
54455 + continue;
54456 +
54457 + task->acl_role_id = 0;
54458 + task->acl_sp_role = 0;
54459 +
54460 + if (task->exec_file) {
54461 + cred = __task_cred(task);
54462 + task->role = lookup_acl_role_label(task, cred->uid, cred->gid);
54463 + ret = gr_apply_subject_to_task(task);
54464 + if (ret) {
54465 + read_unlock(&grsec_exec_file_lock);
54466 + read_unlock(&tasklist_lock);
54467 + rcu_read_unlock();
54468 + gr_log_str_int(GR_DONT_AUDIT_GOOD, GR_DEFACL_MSG, task->comm, task->pid);
54469 + return ret;
54470 + }
54471 + } else {
54472 + // it's a kernel process
54473 + task->role = kernel_role;
54474 + task->acl = kernel_role->root_label;
54475 +#ifdef CONFIG_GRKERNSEC_ACL_HIDEKERN
54476 + task->acl->mode &= ~GR_PROCFIND;
54477 +#endif
54478 + }
54479 + } while_each_thread(task2, task);
54480 + read_unlock(&grsec_exec_file_lock);
54481 + read_unlock(&tasklist_lock);
54482 + rcu_read_unlock();
54483 +
54484 + return 0;
54485 +}
54486 +
54487 +void
54488 +gr_learn_resource(const struct task_struct *task,
54489 + const int res, const unsigned long wanted, const int gt)
54490 +{
54491 + struct acl_subject_label *acl;
54492 + const struct cred *cred;
54493 +
54494 + if (unlikely((gr_status & GR_READY) &&
54495 + task->acl && (task->acl->mode & (GR_LEARN | GR_INHERITLEARN))))
54496 + goto skip_reslog;
54497 +
54498 +#ifdef CONFIG_GRKERNSEC_RESLOG
54499 + gr_log_resource(task, res, wanted, gt);
54500 +#endif
54501 + skip_reslog:
54502 +
54503 + if (unlikely(!(gr_status & GR_READY) || !wanted || res >= GR_NLIMITS))
54504 + return;
54505 +
54506 + acl = task->acl;
54507 +
54508 + if (likely(!acl || !(acl->mode & (GR_LEARN | GR_INHERITLEARN)) ||
54509 + !(acl->resmask & (1 << (unsigned short) res))))
54510 + return;
54511 +
54512 + if (wanted >= acl->res[res].rlim_cur) {
54513 + unsigned long res_add;
54514 +
54515 + res_add = wanted;
54516 + switch (res) {
54517 + case RLIMIT_CPU:
54518 + res_add += GR_RLIM_CPU_BUMP;
54519 + break;
54520 + case RLIMIT_FSIZE:
54521 + res_add += GR_RLIM_FSIZE_BUMP;
54522 + break;
54523 + case RLIMIT_DATA:
54524 + res_add += GR_RLIM_DATA_BUMP;
54525 + break;
54526 + case RLIMIT_STACK:
54527 + res_add += GR_RLIM_STACK_BUMP;
54528 + break;
54529 + case RLIMIT_CORE:
54530 + res_add += GR_RLIM_CORE_BUMP;
54531 + break;
54532 + case RLIMIT_RSS:
54533 + res_add += GR_RLIM_RSS_BUMP;
54534 + break;
54535 + case RLIMIT_NPROC:
54536 + res_add += GR_RLIM_NPROC_BUMP;
54537 + break;
54538 + case RLIMIT_NOFILE:
54539 + res_add += GR_RLIM_NOFILE_BUMP;
54540 + break;
54541 + case RLIMIT_MEMLOCK:
54542 + res_add += GR_RLIM_MEMLOCK_BUMP;
54543 + break;
54544 + case RLIMIT_AS:
54545 + res_add += GR_RLIM_AS_BUMP;
54546 + break;
54547 + case RLIMIT_LOCKS:
54548 + res_add += GR_RLIM_LOCKS_BUMP;
54549 + break;
54550 + case RLIMIT_SIGPENDING:
54551 + res_add += GR_RLIM_SIGPENDING_BUMP;
54552 + break;
54553 + case RLIMIT_MSGQUEUE:
54554 + res_add += GR_RLIM_MSGQUEUE_BUMP;
54555 + break;
54556 + case RLIMIT_NICE:
54557 + res_add += GR_RLIM_NICE_BUMP;
54558 + break;
54559 + case RLIMIT_RTPRIO:
54560 + res_add += GR_RLIM_RTPRIO_BUMP;
54561 + break;
54562 + case RLIMIT_RTTIME:
54563 + res_add += GR_RLIM_RTTIME_BUMP;
54564 + break;
54565 + }
54566 +
54567 + acl->res[res].rlim_cur = res_add;
54568 +
54569 + if (wanted > acl->res[res].rlim_max)
54570 + acl->res[res].rlim_max = res_add;
54571 +
54572 + /* only log the subject filename, since resource logging is supported for
54573 + single-subject learning only */
54574 + rcu_read_lock();
54575 + cred = __task_cred(task);
54576 + security_learn(GR_LEARN_AUDIT_MSG, task->role->rolename,
54577 + task->role->roletype, cred->uid, cred->gid, acl->filename,
54578 + acl->filename, acl->res[res].rlim_cur, acl->res[res].rlim_max,
54579 + "", (unsigned long) res, &task->signal->saved_ip);
54580 + rcu_read_unlock();
54581 + }
54582 +
54583 + return;
54584 +}
54585 +
54586 +#if defined(CONFIG_PAX_HAVE_ACL_FLAGS) && (defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR))
54587 +void
54588 +pax_set_initial_flags(struct linux_binprm *bprm)
54589 +{
54590 + struct task_struct *task = current;
54591 + struct acl_subject_label *proc;
54592 + unsigned long flags;
54593 +
54594 + if (unlikely(!(gr_status & GR_READY)))
54595 + return;
54596 +
54597 + flags = pax_get_flags(task);
54598 +
54599 + proc = task->acl;
54600 +
54601 + if (proc->pax_flags & GR_PAX_DISABLE_PAGEEXEC)
54602 + flags &= ~MF_PAX_PAGEEXEC;
54603 + if (proc->pax_flags & GR_PAX_DISABLE_SEGMEXEC)
54604 + flags &= ~MF_PAX_SEGMEXEC;
54605 + if (proc->pax_flags & GR_PAX_DISABLE_RANDMMAP)
54606 + flags &= ~MF_PAX_RANDMMAP;
54607 + if (proc->pax_flags & GR_PAX_DISABLE_EMUTRAMP)
54608 + flags &= ~MF_PAX_EMUTRAMP;
54609 + if (proc->pax_flags & GR_PAX_DISABLE_MPROTECT)
54610 + flags &= ~MF_PAX_MPROTECT;
54611 +
54612 + if (proc->pax_flags & GR_PAX_ENABLE_PAGEEXEC)
54613 + flags |= MF_PAX_PAGEEXEC;
54614 + if (proc->pax_flags & GR_PAX_ENABLE_SEGMEXEC)
54615 + flags |= MF_PAX_SEGMEXEC;
54616 + if (proc->pax_flags & GR_PAX_ENABLE_RANDMMAP)
54617 + flags |= MF_PAX_RANDMMAP;
54618 + if (proc->pax_flags & GR_PAX_ENABLE_EMUTRAMP)
54619 + flags |= MF_PAX_EMUTRAMP;
54620 + if (proc->pax_flags & GR_PAX_ENABLE_MPROTECT)
54621 + flags |= MF_PAX_MPROTECT;
54622 +
54623 + pax_set_flags(task, flags);
54624 +
54625 + return;
54626 +}
54627 +#endif
54628 +
54629 +int
54630 +gr_handle_proc_ptrace(struct task_struct *task)
54631 +{
54632 + struct file *filp;
54633 + struct task_struct *tmp = task;
54634 + struct task_struct *curtemp = current;
54635 + __u32 retmode;
54636 +
54637 +#ifndef CONFIG_GRKERNSEC_HARDEN_PTRACE
54638 + if (unlikely(!(gr_status & GR_READY)))
54639 + return 0;
54640 +#endif
54641 +
54642 + read_lock(&tasklist_lock);
54643 + read_lock(&grsec_exec_file_lock);
54644 + filp = task->exec_file;
54645 +
54646 + while (tmp->pid > 0) {
54647 + if (tmp == curtemp)
54648 + break;
54649 + tmp = tmp->real_parent;
54650 + }
54651 +
54652 + if (!filp || (tmp->pid == 0 && ((grsec_enable_harden_ptrace && !uid_eq(current_uid(), GLOBAL_ROOT_UID) && !(gr_status & GR_READY)) ||
54653 + ((gr_status & GR_READY) && !(current->acl->mode & GR_RELAXPTRACE))))) {
54654 + read_unlock(&grsec_exec_file_lock);
54655 + read_unlock(&tasklist_lock);
54656 + return 1;
54657 + }
54658 +
54659 +#ifdef CONFIG_GRKERNSEC_HARDEN_PTRACE
54660 + if (!(gr_status & GR_READY)) {
54661 + read_unlock(&grsec_exec_file_lock);
54662 + read_unlock(&tasklist_lock);
54663 + return 0;
54664 + }
54665 +#endif
54666 +
54667 + retmode = gr_search_file(filp->f_path.dentry, GR_NOPTRACE, filp->f_path.mnt);
54668 + read_unlock(&grsec_exec_file_lock);
54669 + read_unlock(&tasklist_lock);
54670 +
54671 + if (retmode & GR_NOPTRACE)
54672 + return 1;
54673 +
54674 + if (!(current->acl->mode & GR_POVERRIDE) && !(current->role->roletype & GR_ROLE_GOD)
54675 + && (current->acl != task->acl || (current->acl != current->role->root_label
54676 + && current->pid != task->pid)))
54677 + return 1;
54678 +
54679 + return 0;
54680 +}
54681 +
54682 +void task_grsec_rbac(struct seq_file *m, struct task_struct *p)
54683 +{
54684 + if (unlikely(!(gr_status & GR_READY)))
54685 + return;
54686 +
54687 + if (!(current->role->roletype & GR_ROLE_GOD))
54688 + return;
54689 +
54690 + seq_printf(m, "RBAC:\t%.64s:%c:%.950s\n",
54691 + p->role->rolename, gr_task_roletype_to_char(p),
54692 + p->acl->filename);
54693 +}
54694 +
54695 +int
54696 +gr_handle_ptrace(struct task_struct *task, const long request)
54697 +{
54698 + struct task_struct *tmp = task;
54699 + struct task_struct *curtemp = current;
54700 + __u32 retmode;
54701 +
54702 +#ifndef CONFIG_GRKERNSEC_HARDEN_PTRACE
54703 + if (unlikely(!(gr_status & GR_READY)))
54704 + return 0;
54705 +#endif
54706 + if (request == PTRACE_ATTACH || request == PTRACE_SEIZE) {
54707 + read_lock(&tasklist_lock);
54708 + while (tmp->pid > 0) {
54709 + if (tmp == curtemp)
54710 + break;
54711 + tmp = tmp->real_parent;
54712 + }
54713 +
54714 + if (tmp->pid == 0 && ((grsec_enable_harden_ptrace && !uid_eq(current_uid(), GLOBAL_ROOT_UID) && !(gr_status & GR_READY)) ||
54715 + ((gr_status & GR_READY) && !(current->acl->mode & GR_RELAXPTRACE)))) {
54716 + read_unlock(&tasklist_lock);
54717 + gr_log_ptrace(GR_DONT_AUDIT, GR_PTRACE_ACL_MSG, task);
54718 + return 1;
54719 + }
54720 + read_unlock(&tasklist_lock);
54721 + }
54722 +
54723 +#ifdef CONFIG_GRKERNSEC_HARDEN_PTRACE
54724 + if (!(gr_status & GR_READY))
54725 + return 0;
54726 +#endif
54727 +
54728 + read_lock(&grsec_exec_file_lock);
54729 + if (unlikely(!task->exec_file)) {
54730 + read_unlock(&grsec_exec_file_lock);
54731 + return 0;
54732 + }
54733 +
54734 + retmode = gr_search_file(task->exec_file->f_path.dentry, GR_PTRACERD | GR_NOPTRACE, task->exec_file->f_path.mnt);
54735 + read_unlock(&grsec_exec_file_lock);
54736 +
54737 + if (retmode & GR_NOPTRACE) {
54738 + gr_log_ptrace(GR_DONT_AUDIT, GR_PTRACE_ACL_MSG, task);
54739 + return 1;
54740 + }
54741 +
54742 + if (retmode & GR_PTRACERD) {
54743 + switch (request) {
54744 + case PTRACE_SEIZE:
54745 + case PTRACE_POKETEXT:
54746 + case PTRACE_POKEDATA:
54747 + case PTRACE_POKEUSR:
54748 +#if !defined(CONFIG_PPC32) && !defined(CONFIG_PPC64) && !defined(CONFIG_PARISC) && !defined(CONFIG_ALPHA) && !defined(CONFIG_IA64)
54749 + case PTRACE_SETREGS:
54750 + case PTRACE_SETFPREGS:
54751 +#endif
54752 +#ifdef CONFIG_X86
54753 + case PTRACE_SETFPXREGS:
54754 +#endif
54755 +#ifdef CONFIG_ALTIVEC
54756 + case PTRACE_SETVRREGS:
54757 +#endif
54758 + return 1;
54759 + default:
54760 + return 0;
54761 + }
54762 + } else if (!(current->acl->mode & GR_POVERRIDE) &&
54763 + !(current->role->roletype & GR_ROLE_GOD) &&
54764 + (current->acl != task->acl)) {
54765 + gr_log_ptrace(GR_DONT_AUDIT, GR_PTRACE_ACL_MSG, task);
54766 + return 1;
54767 + }
54768 +
54769 + return 0;
54770 +}
54771 +
54772 +static int is_writable_mmap(const struct file *filp)
54773 +{
54774 + struct task_struct *task = current;
54775 + struct acl_object_label *obj, *obj2;
54776 +
54777 + if (gr_status & GR_READY && !(task->acl->mode & GR_OVERRIDE) &&
54778 + !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))) {
54779 + obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, default_role->root_label);
54780 + obj2 = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt,
54781 + task->role->root_label);
54782 + if (unlikely((obj->mode & GR_WRITE) || (obj2->mode & GR_WRITE))) {
54783 + gr_log_fs_generic(GR_DONT_AUDIT, GR_WRITLIB_ACL_MSG, filp->f_path.dentry, filp->f_path.mnt);
54784 + return 1;
54785 + }
54786 + }
54787 + return 0;
54788 +}
54789 +
54790 +int
54791 +gr_acl_handle_mmap(const struct file *file, const unsigned long prot)
54792 +{
54793 + __u32 mode;
54794 +
54795 + if (unlikely(!file || !(prot & PROT_EXEC)))
54796 + return 1;
54797 +
54798 + if (is_writable_mmap(file))
54799 + return 0;
54800 +
54801 + mode =
54802 + gr_search_file(file->f_path.dentry,
54803 + GR_EXEC | GR_AUDIT_EXEC | GR_SUPPRESS,
54804 + file->f_path.mnt);
54805 +
54806 + if (!gr_tpe_allow(file))
54807 + return 0;
54808 +
54809 + if (unlikely(!(mode & GR_EXEC) && !(mode & GR_SUPPRESS))) {
54810 + gr_log_fs_rbac_generic(GR_DONT_AUDIT, GR_MMAP_ACL_MSG, file->f_path.dentry, file->f_path.mnt);
54811 + return 0;
54812 + } else if (unlikely(!(mode & GR_EXEC))) {
54813 + return 0;
54814 + } else if (unlikely(mode & GR_EXEC && mode & GR_AUDIT_EXEC)) {
54815 + gr_log_fs_rbac_generic(GR_DO_AUDIT, GR_MMAP_ACL_MSG, file->f_path.dentry, file->f_path.mnt);
54816 + return 1;
54817 + }
54818 +
54819 + return 1;
54820 +}
54821 +
54822 +int
54823 +gr_acl_handle_mprotect(const struct file *file, const unsigned long prot)
54824 +{
54825 + __u32 mode;
54826 +
54827 + if (unlikely(!file || !(prot & PROT_EXEC)))
54828 + return 1;
54829 +
54830 + if (is_writable_mmap(file))
54831 + return 0;
54832 +
54833 + mode =
54834 + gr_search_file(file->f_path.dentry,
54835 + GR_EXEC | GR_AUDIT_EXEC | GR_SUPPRESS,
54836 + file->f_path.mnt);
54837 +
54838 + if (!gr_tpe_allow(file))
54839 + return 0;
54840 +
54841 + if (unlikely(!(mode & GR_EXEC) && !(mode & GR_SUPPRESS))) {
54842 + gr_log_fs_rbac_generic(GR_DONT_AUDIT, GR_MPROTECT_ACL_MSG, file->f_path.dentry, file->f_path.mnt);
54843 + return 0;
54844 + } else if (unlikely(!(mode & GR_EXEC))) {
54845 + return 0;
54846 + } else if (unlikely(mode & GR_EXEC && mode & GR_AUDIT_EXEC)) {
54847 + gr_log_fs_rbac_generic(GR_DO_AUDIT, GR_MPROTECT_ACL_MSG, file->f_path.dentry, file->f_path.mnt);
54848 + return 1;
54849 + }
54850 +
54851 + return 1;
54852 +}
54853 +
54854 +void
54855 +gr_acl_handle_psacct(struct task_struct *task, const long code)
54856 +{
54857 + unsigned long runtime;
54858 + unsigned long cputime;
54859 + unsigned int wday, cday;
54860 + __u8 whr, chr;
54861 + __u8 wmin, cmin;
54862 + __u8 wsec, csec;
54863 + struct timespec timeval;
54864 +
54865 + if (unlikely(!(gr_status & GR_READY) || !task->acl ||
54866 + !(task->acl->mode & GR_PROCACCT)))
54867 + return;
54868 +
54869 + do_posix_clock_monotonic_gettime(&timeval);
54870 + runtime = timeval.tv_sec - task->start_time.tv_sec;
54871 + wday = runtime / (3600 * 24);
54872 + runtime -= wday * (3600 * 24);
54873 + whr = runtime / 3600;
54874 + runtime -= whr * 3600;
54875 + wmin = runtime / 60;
54876 + runtime -= wmin * 60;
54877 + wsec = runtime;
54878 +
54879 + cputime = (task->utime + task->stime) / HZ;
54880 + cday = cputime / (3600 * 24);
54881 + cputime -= cday * (3600 * 24);
54882 + chr = cputime / 3600;
54883 + cputime -= chr * 3600;
54884 + cmin = cputime / 60;
54885 + cputime -= cmin * 60;
54886 + csec = cputime;
54887 +
54888 + gr_log_procacct(GR_DO_AUDIT, GR_ACL_PROCACCT_MSG, task, wday, whr, wmin, wsec, cday, chr, cmin, csec, code);
54889 +
54890 + return;
54891 +}
54892 +
54893 +void gr_set_kernel_label(struct task_struct *task)
54894 +{
54895 + if (gr_status & GR_READY) {
54896 + task->role = kernel_role;
54897 + task->acl = kernel_role->root_label;
54898 + }
54899 + return;
54900 +}
54901 +
54902 +#ifdef CONFIG_TASKSTATS
54903 +int gr_is_taskstats_denied(int pid)
54904 +{
54905 + struct task_struct *task;
54906 +#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
54907 + const struct cred *cred;
54908 +#endif
54909 + int ret = 0;
54910 +
54911 + /* restrict taskstats viewing to un-chrooted root users
54912 + who have the 'view' subject flag if the RBAC system is enabled
54913 + */
54914 +
54915 + rcu_read_lock();
54916 + read_lock(&tasklist_lock);
54917 + task = find_task_by_vpid(pid);
54918 + if (task) {
54919 +#ifdef CONFIG_GRKERNSEC_CHROOT
54920 + if (proc_is_chrooted(task))
54921 + ret = -EACCES;
54922 +#endif
54923 +#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
54924 + cred = __task_cred(task);
54925 +#ifdef CONFIG_GRKERNSEC_PROC_USER
54926 + if (!uid_eq(cred->uid, GLOBAL_ROOT_UID))
54927 + ret = -EACCES;
54928 +#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
54929 + if (!uid_eq(cred->uid, GLOBAL_ROOT_UID) && !groups_search(cred->group_info, CONFIG_GRKERNSEC_PROC_GID))
54930 + ret = -EACCES;
54931 +#endif
54932 +#endif
54933 + if (gr_status & GR_READY) {
54934 + if (!(task->acl->mode & GR_VIEW))
54935 + ret = -EACCES;
54936 + }
54937 + } else
54938 + ret = -ENOENT;
54939 +
54940 + read_unlock(&tasklist_lock);
54941 + rcu_read_unlock();
54942 +
54943 + return ret;
54944 +}
54945 +#endif
54946 +
54947 +/* AUXV entries are filled via a descendant of search_binary_handler
54948 + after we've already applied the subject for the target
54949 +*/
54950 +int gr_acl_enable_at_secure(void)
54951 +{
54952 + if (unlikely(!(gr_status & GR_READY)))
54953 + return 0;
54954 +
54955 + if (current->acl->mode & GR_ATSECURE)
54956 + return 1;
54957 +
54958 + return 0;
54959 +}
54960 +
54961 +int gr_acl_handle_filldir(const struct file *file, const char *name, const unsigned int namelen, const ino_t ino)
54962 +{
54963 + struct task_struct *task = current;
54964 + struct dentry *dentry = file->f_path.dentry;
54965 + struct vfsmount *mnt = file->f_path.mnt;
54966 + struct acl_object_label *obj, *tmp;
54967 + struct acl_subject_label *subj;
54968 + unsigned int bufsize;
54969 + int is_not_root;
54970 + char *path;
54971 + dev_t dev = __get_dev(dentry);
54972 +
54973 + if (unlikely(!(gr_status & GR_READY)))
54974 + return 1;
54975 +
54976 + if (task->acl->mode & (GR_LEARN | GR_INHERITLEARN))
54977 + return 1;
54978 +
54979 + /* ignore Eric Biederman */
54980 + if (IS_PRIVATE(dentry->d_inode))
54981 + return 1;
54982 +
54983 + subj = task->acl;
54984 + read_lock(&gr_inode_lock);
54985 + do {
54986 + obj = lookup_acl_obj_label(ino, dev, subj);
54987 + if (obj != NULL) {
54988 + read_unlock(&gr_inode_lock);
54989 + return (obj->mode & GR_FIND) ? 1 : 0;
54990 + }
54991 + } while ((subj = subj->parent_subject));
54992 + read_unlock(&gr_inode_lock);
54993 +
54994 + /* this is purely an optimization since we're looking for an object
54995 + for the directory we're doing a readdir on
54996 + if it's possible for any globbed object to match the entry we're
54997 + filling into the directory, then the object we find here will be
54998 + an anchor point with attached globbed objects
54999 + */
55000 + obj = chk_obj_label_noglob(dentry, mnt, task->acl);
55001 + if (obj->globbed == NULL)
55002 + return (obj->mode & GR_FIND) ? 1 : 0;
55003 +
55004 + is_not_root = ((obj->filename[0] == '/') &&
55005 + (obj->filename[1] == '\0')) ? 0 : 1;
55006 + bufsize = PAGE_SIZE - namelen - is_not_root;
55007 +
55008 + /* check bufsize > PAGE_SIZE || bufsize == 0 */
55009 + if (unlikely((bufsize - 1) > (PAGE_SIZE - 1)))
55010 + return 1;
55011 +
55012 + preempt_disable();
55013 + path = d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[0], smp_processor_id()),
55014 + bufsize);
55015 +
55016 + bufsize = strlen(path);
55017 +
55018 + /* if base is "/", don't append an additional slash */
55019 + if (is_not_root)
55020 + *(path + bufsize) = '/';
55021 + memcpy(path + bufsize + is_not_root, name, namelen);
55022 + *(path + bufsize + namelen + is_not_root) = '\0';
55023 +
55024 + tmp = obj->globbed;
55025 + while (tmp) {
55026 + if (!glob_match(tmp->filename, path)) {
55027 + preempt_enable();
55028 + return (tmp->mode & GR_FIND) ? 1 : 0;
55029 + }
55030 + tmp = tmp->next;
55031 + }
55032 + preempt_enable();
55033 + return (obj->mode & GR_FIND) ? 1 : 0;
55034 +}
55035 +
55036 +#ifdef CONFIG_NETFILTER_XT_MATCH_GRADM_MODULE
55037 +EXPORT_SYMBOL(gr_acl_is_enabled);
55038 +#endif
55039 +EXPORT_SYMBOL(gr_learn_resource);
55040 +EXPORT_SYMBOL(gr_set_kernel_label);
55041 +#ifdef CONFIG_SECURITY
55042 +EXPORT_SYMBOL(gr_check_user_change);
55043 +EXPORT_SYMBOL(gr_check_group_change);
55044 +#endif
55045 +
55046 diff --git a/grsecurity/gracl_alloc.c b/grsecurity/gracl_alloc.c
55047 new file mode 100644
55048 index 0000000..34fefda
55049 --- /dev/null
55050 +++ b/grsecurity/gracl_alloc.c
55051 @@ -0,0 +1,105 @@
55052 +#include <linux/kernel.h>
55053 +#include <linux/mm.h>
55054 +#include <linux/slab.h>
55055 +#include <linux/vmalloc.h>
55056 +#include <linux/gracl.h>
55057 +#include <linux/grsecurity.h>
55058 +
55059 +static unsigned long alloc_stack_next = 1;
55060 +static unsigned long alloc_stack_size = 1;
55061 +static void **alloc_stack;
55062 +
55063 +static __inline__ int
55064 +alloc_pop(void)
55065 +{
55066 + if (alloc_stack_next == 1)
55067 + return 0;
55068 +
55069 + kfree(alloc_stack[alloc_stack_next - 2]);
55070 +
55071 + alloc_stack_next--;
55072 +
55073 + return 1;
55074 +}
55075 +
55076 +static __inline__ int
55077 +alloc_push(void *buf)
55078 +{
55079 + if (alloc_stack_next >= alloc_stack_size)
55080 + return 1;
55081 +
55082 + alloc_stack[alloc_stack_next - 1] = buf;
55083 +
55084 + alloc_stack_next++;
55085 +
55086 + return 0;
55087 +}
55088 +
55089 +void *
55090 +acl_alloc(unsigned long len)
55091 +{
55092 + void *ret = NULL;
55093 +
55094 + if (!len || len > PAGE_SIZE)
55095 + goto out;
55096 +
55097 + ret = kmalloc(len, GFP_KERNEL);
55098 +
55099 + if (ret) {
55100 + if (alloc_push(ret)) {
55101 + kfree(ret);
55102 + ret = NULL;
55103 + }
55104 + }
55105 +
55106 +out:
55107 + return ret;
55108 +}
55109 +
55110 +void *
55111 +acl_alloc_num(unsigned long num, unsigned long len)
55112 +{
55113 + if (!len || (num > (PAGE_SIZE / len)))
55114 + return NULL;
55115 +
55116 + return acl_alloc(num * len);
55117 +}
55118 +
55119 +void
55120 +acl_free_all(void)
55121 +{
55122 + if (gr_acl_is_enabled() || !alloc_stack)
55123 + return;
55124 +
55125 + while (alloc_pop()) ;
55126 +
55127 + if (alloc_stack) {
55128 + if ((alloc_stack_size * sizeof (void *)) <= PAGE_SIZE)
55129 + kfree(alloc_stack);
55130 + else
55131 + vfree(alloc_stack);
55132 + }
55133 +
55134 + alloc_stack = NULL;
55135 + alloc_stack_size = 1;
55136 + alloc_stack_next = 1;
55137 +
55138 + return;
55139 +}
55140 +
55141 +int
55142 +acl_alloc_stack_init(unsigned long size)
55143 +{
55144 + if ((size * sizeof (void *)) <= PAGE_SIZE)
55145 + alloc_stack =
55146 + (void **) kmalloc(size * sizeof (void *), GFP_KERNEL);
55147 + else
55148 + alloc_stack = (void **) vmalloc(size * sizeof (void *));
55149 +
55150 + alloc_stack_size = size;
55151 +
55152 + if (!alloc_stack)
55153 + return 0;
55154 + else
55155 + return 1;
55156 +}
55157 diff --git a/grsecurity/gracl_cap.c b/grsecurity/gracl_cap.c
55158 new file mode 100644
55159 index 0000000..6d21049
55160 --- /dev/null
55161 +++ b/grsecurity/gracl_cap.c
55162 @@ -0,0 +1,110 @@
55163 +#include <linux/kernel.h>
55164 +#include <linux/module.h>
55165 +#include <linux/sched.h>
55166 +#include <linux/gracl.h>
55167 +#include <linux/grsecurity.h>
55168 +#include <linux/grinternal.h>
55169 +
55170 +extern const char *captab_log[];
55171 +extern int captab_log_entries;
55172 +
55173 +int gr_task_acl_is_capable(const struct task_struct *task, const struct cred *cred, const int cap)
55174 +{
55175 + struct acl_subject_label *curracl;
55176 + kernel_cap_t cap_drop = __cap_empty_set, cap_mask = __cap_empty_set;
55177 + kernel_cap_t cap_audit = __cap_empty_set;
55178 +
55179 + if (!gr_acl_is_enabled())
55180 + return 1;
55181 +
55182 + curracl = task->acl;
55183 +
55184 + cap_drop = curracl->cap_lower;
55185 + cap_mask = curracl->cap_mask;
55186 + cap_audit = curracl->cap_invert_audit;
55187 +
55188 + while ((curracl = curracl->parent_subject)) {
55189 + /* if the cap isn't specified in the current computed mask but is specified in the
55190 + current level subject, and is lowered in the current level subject, then add
55191 + it to the set of dropped capabilities
55192 + otherwise, add the current level subject's mask to the current computed mask
55193 + */
55194 + if (!cap_raised(cap_mask, cap) && cap_raised(curracl->cap_mask, cap)) {
55195 + cap_raise(cap_mask, cap);
55196 + if (cap_raised(curracl->cap_lower, cap))
55197 + cap_raise(cap_drop, cap);
55198 + if (cap_raised(curracl->cap_invert_audit, cap))
55199 + cap_raise(cap_audit, cap);
55200 + }
55201 + }
55202 +
55203 + if (!cap_raised(cap_drop, cap)) {
55204 + if (cap_raised(cap_audit, cap))
55205 + gr_log_cap(GR_DO_AUDIT, GR_CAP_ACL_MSG2, task, captab_log[cap]);
55206 + return 1;
55207 + }
55208 +
55209 + curracl = task->acl;
55210 +
55211 + if ((curracl->mode & (GR_LEARN | GR_INHERITLEARN))
55212 + && cap_raised(cred->cap_effective, cap)) {
55213 + security_learn(GR_LEARN_AUDIT_MSG, task->role->rolename,
55214 + task->role->roletype, cred->uid,
55215 + cred->gid, task->exec_file ?
55216 + gr_to_filename(task->exec_file->f_path.dentry,
55217 + task->exec_file->f_path.mnt) : curracl->filename,
55218 + curracl->filename, 0UL,
55219 + 0UL, "", (unsigned long) cap, &task->signal->saved_ip);
55220 + return 1;
55221 + }
55222 +
55223 + if ((cap >= 0) && (cap < captab_log_entries) && cap_raised(cred->cap_effective, cap) && !cap_raised(cap_audit, cap))
55224 + gr_log_cap(GR_DONT_AUDIT, GR_CAP_ACL_MSG, task, captab_log[cap]);
55225 +
55226 + return 0;
55227 +}
55228 +
55229 +int
55230 +gr_acl_is_capable(const int cap)
55231 +{
55232 + return gr_task_acl_is_capable(current, current_cred(), cap);
55233 +}
55234 +
55235 +int gr_task_acl_is_capable_nolog(const struct task_struct *task, const int cap)
55236 +{
55237 + struct acl_subject_label *curracl;
55238 + kernel_cap_t cap_drop = __cap_empty_set, cap_mask = __cap_empty_set;
55239 +
55240 + if (!gr_acl_is_enabled())
55241 + return 1;
55242 +
55243 + curracl = task->acl;
55244 +
55245 + cap_drop = curracl->cap_lower;
55246 + cap_mask = curracl->cap_mask;
55247 +
55248 + while ((curracl = curracl->parent_subject)) {
55249 + /* if the cap isn't specified in the current computed mask but is specified in the
55250 + current level subject, and is lowered in the current level subject, then add
55251 + it to the set of dropped capabilities
55252 + otherwise, add the current level subject's mask to the current computed mask
55253 + */
55254 + if (!cap_raised(cap_mask, cap) && cap_raised(curracl->cap_mask, cap)) {
55255 + cap_raise(cap_mask, cap);
55256 + if (cap_raised(curracl->cap_lower, cap))
55257 + cap_raise(cap_drop, cap);
55258 + }
55259 + }
55260 +
55261 + if (!cap_raised(cap_drop, cap))
55262 + return 1;
55263 +
55264 + return 0;
55265 +}
55266 +
55267 +int
55268 +gr_acl_is_capable_nolog(const int cap)
55269 +{
55270 + return gr_task_acl_is_capable_nolog(current, cap);
55271 +}
55272 +
55273 diff --git a/grsecurity/gracl_fs.c b/grsecurity/gracl_fs.c
55274 new file mode 100644
55275 index 0000000..d28e241
55276 --- /dev/null
55277 +++ b/grsecurity/gracl_fs.c
55278 @@ -0,0 +1,437 @@
55279 +#include <linux/kernel.h>
55280 +#include <linux/sched.h>
55281 +#include <linux/types.h>
55282 +#include <linux/fs.h>
55283 +#include <linux/file.h>
55284 +#include <linux/stat.h>
55285 +#include <linux/grsecurity.h>
55286 +#include <linux/grinternal.h>
55287 +#include <linux/gracl.h>
55288 +
55289 +umode_t
55290 +gr_acl_umask(void)
55291 +{
55292 + if (unlikely(!gr_acl_is_enabled()))
55293 + return 0;
55294 +
55295 + return current->role->umask;
55296 +}
55297 +
55298 +__u32
55299 +gr_acl_handle_hidden_file(const struct dentry * dentry,
55300 + const struct vfsmount * mnt)
55301 +{
55302 + __u32 mode;
55303 +
55304 + if (unlikely(!dentry->d_inode))
55305 + return GR_FIND;
55306 +
55307 + mode =
55308 + gr_search_file(dentry, GR_FIND | GR_AUDIT_FIND | GR_SUPPRESS, mnt);
55309 +
55310 + if (unlikely(mode & GR_FIND && mode & GR_AUDIT_FIND)) {
55311 + gr_log_fs_rbac_generic(GR_DO_AUDIT, GR_HIDDEN_ACL_MSG, dentry, mnt);
55312 + return mode;
55313 + } else if (unlikely(!(mode & GR_FIND) && !(mode & GR_SUPPRESS))) {
55314 + gr_log_fs_rbac_generic(GR_DONT_AUDIT, GR_HIDDEN_ACL_MSG, dentry, mnt);
55315 + return 0;
55316 + } else if (unlikely(!(mode & GR_FIND)))
55317 + return 0;
55318 +
55319 + return GR_FIND;
55320 +}
55321 +
55322 +__u32
55323 +gr_acl_handle_open(const struct dentry * dentry, const struct vfsmount * mnt,
55324 + int acc_mode)
55325 +{
55326 + __u32 reqmode = GR_FIND;
55327 + __u32 mode;
55328 +
55329 + if (unlikely(!dentry->d_inode))
55330 + return reqmode;
55331 +
55332 + if (acc_mode & MAY_APPEND)
55333 + reqmode |= GR_APPEND;
55334 + else if (acc_mode & MAY_WRITE)
55335 + reqmode |= GR_WRITE;
55336 + if ((acc_mode & MAY_READ) && !S_ISDIR(dentry->d_inode->i_mode))
55337 + reqmode |= GR_READ;
55338 +
55339 + mode =
55340 + gr_search_file(dentry, reqmode | to_gr_audit(reqmode) | GR_SUPPRESS,
55341 + mnt);
55342 +
55343 + if (unlikely(((mode & reqmode) == reqmode) && mode & GR_AUDITS)) {
55344 + gr_log_fs_rbac_mode2(GR_DO_AUDIT, GR_OPEN_ACL_MSG, dentry, mnt,
55345 + reqmode & GR_READ ? " reading" : "",
55346 + reqmode & GR_WRITE ? " writing" : reqmode &
55347 + GR_APPEND ? " appending" : "");
55348 + return reqmode;
55349 + } else
55350 + if (unlikely((mode & reqmode) != reqmode && !(mode & GR_SUPPRESS)))
55351 + {
55352 + gr_log_fs_rbac_mode2(GR_DONT_AUDIT, GR_OPEN_ACL_MSG, dentry, mnt,
55353 + reqmode & GR_READ ? " reading" : "",
55354 + reqmode & GR_WRITE ? " writing" : reqmode &
55355 + GR_APPEND ? " appending" : "");
55356 + return 0;
55357 + } else if (unlikely((mode & reqmode) != reqmode))
55358 + return 0;
55359 +
55360 + return reqmode;
55361 +}
55362 +
55363 +__u32
55364 +gr_acl_handle_creat(const struct dentry * dentry,
55365 + const struct dentry * p_dentry,
55366 + const struct vfsmount * p_mnt, int open_flags, int acc_mode,
55367 + const int imode)
55368 +{
55369 + __u32 reqmode = GR_WRITE | GR_CREATE;
55370 + __u32 mode;
55371 +
55372 + if (acc_mode & MAY_APPEND)
55373 + reqmode |= GR_APPEND;
55374 + // if a directory was required or the directory already exists, then
55375 + // don't count this open as a read
55376 + if ((acc_mode & MAY_READ) &&
55377 + !((open_flags & O_DIRECTORY) || (dentry->d_inode && S_ISDIR(dentry->d_inode->i_mode))))
55378 + reqmode |= GR_READ;
55379 + if ((open_flags & O_CREAT) &&
55380 + ((imode & S_ISUID) || ((imode & (S_ISGID | S_IXGRP)) == (S_ISGID | S_IXGRP))))
55381 + reqmode |= GR_SETID;
55382 +
55383 + mode =
55384 + gr_check_create(dentry, p_dentry, p_mnt,
55385 + reqmode | to_gr_audit(reqmode) | GR_SUPPRESS);
55386 +
55387 + if (unlikely(((mode & reqmode) == reqmode) && mode & GR_AUDITS)) {
55388 + gr_log_fs_rbac_mode2(GR_DO_AUDIT, GR_CREATE_ACL_MSG, dentry, p_mnt,
55389 + reqmode & GR_READ ? " reading" : "",
55390 + reqmode & GR_WRITE ? " writing" : reqmode &
55391 + GR_APPEND ? " appending" : "");
55392 + return reqmode;
55393 + } else
55394 + if (unlikely((mode & reqmode) != reqmode && !(mode & GR_SUPPRESS)))
55395 + {
55396 + gr_log_fs_rbac_mode2(GR_DONT_AUDIT, GR_CREATE_ACL_MSG, dentry, p_mnt,
55397 + reqmode & GR_READ ? " reading" : "",
55398 + reqmode & GR_WRITE ? " writing" : reqmode &
55399 + GR_APPEND ? " appending" : "");
55400 + return 0;
55401 + } else if (unlikely((mode & reqmode) != reqmode))
55402 + return 0;
55403 +
55404 + return reqmode;
55405 +}
55406 +
55407 +__u32
55408 +gr_acl_handle_access(const struct dentry * dentry, const struct vfsmount * mnt,
55409 + const int fmode)
55410 +{
55411 + __u32 mode, reqmode = GR_FIND;
55412 +
55413 + if ((fmode & S_IXOTH) && !S_ISDIR(dentry->d_inode->i_mode))
55414 + reqmode |= GR_EXEC;
55415 + if (fmode & S_IWOTH)
55416 + reqmode |= GR_WRITE;
55417 + if (fmode & S_IROTH)
55418 + reqmode |= GR_READ;
55419 +
55420 + mode =
55421 + gr_search_file(dentry, reqmode | to_gr_audit(reqmode) | GR_SUPPRESS,
55422 + mnt);
55423 +
55424 + if (unlikely(((mode & reqmode) == reqmode) && mode & GR_AUDITS)) {
55425 + gr_log_fs_rbac_mode3(GR_DO_AUDIT, GR_ACCESS_ACL_MSG, dentry, mnt,
55426 + reqmode & GR_READ ? " reading" : "",
55427 + reqmode & GR_WRITE ? " writing" : "",
55428 + reqmode & GR_EXEC ? " executing" : "");
55429 + return reqmode;
55430 + } else
55431 + if (unlikely((mode & reqmode) != reqmode && !(mode & GR_SUPPRESS)))
55432 + {
55433 + gr_log_fs_rbac_mode3(GR_DONT_AUDIT, GR_ACCESS_ACL_MSG, dentry, mnt,
55434 + reqmode & GR_READ ? " reading" : "",
55435 + reqmode & GR_WRITE ? " writing" : "",
55436 + reqmode & GR_EXEC ? " executing" : "");
55437 + return 0;
55438 + } else if (unlikely((mode & reqmode) != reqmode))
55439 + return 0;
55440 +
55441 + return reqmode;
55442 +}
55443 +
55444 +static __u32 generic_fs_handler(const struct dentry *dentry, const struct vfsmount *mnt, __u32 reqmode, const char *fmt)
55445 +{
55446 + __u32 mode;
55447 +
55448 + mode = gr_search_file(dentry, reqmode | to_gr_audit(reqmode) | GR_SUPPRESS, mnt);
55449 +
55450 + if (unlikely(((mode & (reqmode)) == (reqmode)) && mode & GR_AUDITS)) {
55451 + gr_log_fs_rbac_generic(GR_DO_AUDIT, fmt, dentry, mnt);
55452 + return mode;
55453 + } else if (unlikely((mode & (reqmode)) != (reqmode) && !(mode & GR_SUPPRESS))) {
55454 + gr_log_fs_rbac_generic(GR_DONT_AUDIT, fmt, dentry, mnt);
55455 + return 0;
55456 + } else if (unlikely((mode & (reqmode)) != (reqmode)))
55457 + return 0;
55458 +
55459 + return (reqmode);
55460 +}
55461 +
55462 +__u32
55463 +gr_acl_handle_rmdir(const struct dentry * dentry, const struct vfsmount * mnt)
55464 +{
55465 + return generic_fs_handler(dentry, mnt, GR_WRITE | GR_DELETE , GR_RMDIR_ACL_MSG);
55466 +}
55467 +
55468 +__u32
55469 +gr_acl_handle_unlink(const struct dentry *dentry, const struct vfsmount *mnt)
55470 +{
55471 + return generic_fs_handler(dentry, mnt, GR_WRITE | GR_DELETE , GR_UNLINK_ACL_MSG);
55472 +}
55473 +
55474 +__u32
55475 +gr_acl_handle_truncate(const struct dentry *dentry, const struct vfsmount *mnt)
55476 +{
55477 + return generic_fs_handler(dentry, mnt, GR_WRITE, GR_TRUNCATE_ACL_MSG);
55478 +}
55479 +
55480 +__u32
55481 +gr_acl_handle_utime(const struct dentry *dentry, const struct vfsmount *mnt)
55482 +{
55483 + return generic_fs_handler(dentry, mnt, GR_WRITE, GR_ATIME_ACL_MSG);
55484 +}
55485 +
55486 +__u32
55487 +gr_acl_handle_chmod(const struct dentry *dentry, const struct vfsmount *mnt,
55488 + umode_t *modeptr)
55489 +{
55490 + umode_t mode;
55491 +
55492 + *modeptr &= ~gr_acl_umask();
55493 + mode = *modeptr;
55494 +
55495 + if (unlikely(dentry->d_inode && S_ISSOCK(dentry->d_inode->i_mode)))
55496 + return 1;
55497 +
55498 + if (unlikely(dentry->d_inode && !S_ISDIR(dentry->d_inode->i_mode) &&
55499 + ((mode & S_ISUID) || ((mode & (S_ISGID | S_IXGRP)) == (S_ISGID | S_IXGRP))))) {
55500 + return generic_fs_handler(dentry, mnt, GR_WRITE | GR_SETID,
55501 + GR_CHMOD_ACL_MSG);
55502 + } else {
55503 + return generic_fs_handler(dentry, mnt, GR_WRITE, GR_CHMOD_ACL_MSG);
55504 + }
55505 +}
55506 +
55507 +__u32
55508 +gr_acl_handle_chown(const struct dentry *dentry, const struct vfsmount *mnt)
55509 +{
55510 + return generic_fs_handler(dentry, mnt, GR_WRITE, GR_CHOWN_ACL_MSG);
55511 +}
55512 +
55513 +__u32
55514 +gr_acl_handle_setxattr(const struct dentry *dentry, const struct vfsmount *mnt)
55515 +{
55516 + return generic_fs_handler(dentry, mnt, GR_WRITE, GR_SETXATTR_ACL_MSG);
55517 +}
55518 +
55519 +__u32
55520 +gr_acl_handle_execve(const struct dentry *dentry, const struct vfsmount *mnt)
55521 +{
55522 + return generic_fs_handler(dentry, mnt, GR_EXEC, GR_EXEC_ACL_MSG);
55523 +}
55524 +
55525 +__u32
55526 +gr_acl_handle_unix(const struct dentry *dentry, const struct vfsmount *mnt)
55527 +{
55528 + return generic_fs_handler(dentry, mnt, GR_READ | GR_WRITE,
55529 + GR_UNIXCONNECT_ACL_MSG);
55530 +}
55531 +
55532 +/* hardlinks require at minimum create and link permission,
55533 + any additional privilege required is based on the
55534 + privilege of the file being linked to
55535 +*/
55536 +__u32
55537 +gr_acl_handle_link(const struct dentry * new_dentry,
55538 + const struct dentry * parent_dentry,
55539 + const struct vfsmount * parent_mnt,
55540 + const struct dentry * old_dentry,
55541 + const struct vfsmount * old_mnt, const char *to)
55542 +{
55543 + __u32 mode;
55544 + __u32 needmode = GR_CREATE | GR_LINK;
55545 + __u32 needaudit = GR_AUDIT_CREATE | GR_AUDIT_LINK;
55546 +
55547 + mode =
55548 + gr_check_link(new_dentry, parent_dentry, parent_mnt, old_dentry,
55549 + old_mnt);
55550 +
55551 + if (unlikely(((mode & needmode) == needmode) && (mode & needaudit))) {
55552 + gr_log_fs_rbac_str(GR_DO_AUDIT, GR_LINK_ACL_MSG, old_dentry, old_mnt, to);
55553 + return mode;
55554 + } else if (unlikely(((mode & needmode) != needmode) && !(mode & GR_SUPPRESS))) {
55555 + gr_log_fs_rbac_str(GR_DONT_AUDIT, GR_LINK_ACL_MSG, old_dentry, old_mnt, to);
55556 + return 0;
55557 + } else if (unlikely((mode & needmode) != needmode))
55558 + return 0;
55559 +
55560 + return 1;
55561 +}
55562 +
55563 +__u32
55564 +gr_acl_handle_symlink(const struct dentry * new_dentry,
55565 + const struct dentry * parent_dentry,
55566 + const struct vfsmount * parent_mnt, const char *from)
55567 +{
55568 + __u32 needmode = GR_WRITE | GR_CREATE;
55569 + __u32 mode;
55570 +
55571 + mode =
55572 + gr_check_create(new_dentry, parent_dentry, parent_mnt,
55573 + GR_CREATE | GR_AUDIT_CREATE |
55574 + GR_WRITE | GR_AUDIT_WRITE | GR_SUPPRESS);
55575 +
55576 + if (unlikely(mode & GR_WRITE && mode & GR_AUDITS)) {
55577 + gr_log_fs_str_rbac(GR_DO_AUDIT, GR_SYMLINK_ACL_MSG, from, new_dentry, parent_mnt);
55578 + return mode;
55579 + } else if (unlikely(((mode & needmode) != needmode) && !(mode & GR_SUPPRESS))) {
55580 + gr_log_fs_str_rbac(GR_DONT_AUDIT, GR_SYMLINK_ACL_MSG, from, new_dentry, parent_mnt);
55581 + return 0;
55582 + } else if (unlikely((mode & needmode) != needmode))
55583 + return 0;
55584 +
55585 + return (GR_WRITE | GR_CREATE);
55586 +}
55587 +
55588 +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)
55589 +{
55590 + __u32 mode;
55591 +
55592 + mode = gr_check_create(new_dentry, parent_dentry, parent_mnt, reqmode | to_gr_audit(reqmode) | GR_SUPPRESS);
55593 +
55594 + if (unlikely(((mode & (reqmode)) == (reqmode)) && mode & GR_AUDITS)) {
55595 + gr_log_fs_rbac_generic(GR_DO_AUDIT, fmt, new_dentry, parent_mnt);
55596 + return mode;
55597 + } else if (unlikely((mode & (reqmode)) != (reqmode) && !(mode & GR_SUPPRESS))) {
55598 + gr_log_fs_rbac_generic(GR_DONT_AUDIT, fmt, new_dentry, parent_mnt);
55599 + return 0;
55600 + } else if (unlikely((mode & (reqmode)) != (reqmode)))
55601 + return 0;
55602 +
55603 + return (reqmode);
55604 +}
55605 +
55606 +__u32
55607 +gr_acl_handle_mknod(const struct dentry * new_dentry,
55608 + const struct dentry * parent_dentry,
55609 + const struct vfsmount * parent_mnt,
55610 + const int mode)
55611 +{
55612 + __u32 reqmode = GR_WRITE | GR_CREATE;
55613 + if (unlikely((mode & S_ISUID) || ((mode & (S_ISGID | S_IXGRP)) == (S_ISGID | S_IXGRP))))
55614 + reqmode |= GR_SETID;
55615 +
55616 + return generic_fs_create_handler(new_dentry, parent_dentry, parent_mnt,
55617 + reqmode, GR_MKNOD_ACL_MSG);
55618 +}
55619 +
55620 +__u32
55621 +gr_acl_handle_mkdir(const struct dentry *new_dentry,
55622 + const struct dentry *parent_dentry,
55623 + const struct vfsmount *parent_mnt)
55624 +{
55625 + return generic_fs_create_handler(new_dentry, parent_dentry, parent_mnt,
55626 + GR_WRITE | GR_CREATE, GR_MKDIR_ACL_MSG);
55627 +}
55628 +
55629 +#define RENAME_CHECK_SUCCESS(old, new) \
55630 + (((old & (GR_WRITE | GR_READ)) == (GR_WRITE | GR_READ)) && \
55631 + ((new & (GR_WRITE | GR_READ)) == (GR_WRITE | GR_READ)))
55632 +
55633 +int
55634 +gr_acl_handle_rename(struct dentry *new_dentry,
55635 + struct dentry *parent_dentry,
55636 + const struct vfsmount *parent_mnt,
55637 + struct dentry *old_dentry,
55638 + struct inode *old_parent_inode,
55639 + struct vfsmount *old_mnt, const char *newname)
55640 +{
55641 + __u32 comp1, comp2;
55642 + int error = 0;
55643 +
55644 + if (unlikely(!gr_acl_is_enabled()))
55645 + return 0;
55646 +
55647 + if (!new_dentry->d_inode) {
55648 + comp1 = gr_check_create(new_dentry, parent_dentry, parent_mnt,
55649 + GR_READ | GR_WRITE | GR_CREATE | GR_AUDIT_READ |
55650 + GR_AUDIT_WRITE | GR_AUDIT_CREATE | GR_SUPPRESS);
55651 + comp2 = gr_search_file(old_dentry, GR_READ | GR_WRITE |
55652 + GR_DELETE | GR_AUDIT_DELETE |
55653 + GR_AUDIT_READ | GR_AUDIT_WRITE |
55654 + GR_SUPPRESS, old_mnt);
55655 + } else {
55656 + comp1 = gr_search_file(new_dentry, GR_READ | GR_WRITE |
55657 + GR_CREATE | GR_DELETE |
55658 + GR_AUDIT_CREATE | GR_AUDIT_DELETE |
55659 + GR_AUDIT_READ | GR_AUDIT_WRITE |
55660 + GR_SUPPRESS, parent_mnt);
55661 + comp2 =
55662 + gr_search_file(old_dentry,
55663 + GR_READ | GR_WRITE | GR_AUDIT_READ |
55664 + GR_DELETE | GR_AUDIT_DELETE |
55665 + GR_AUDIT_WRITE | GR_SUPPRESS, old_mnt);
55666 + }
55667 +
55668 + if (RENAME_CHECK_SUCCESS(comp1, comp2) &&
55669 + ((comp1 & GR_AUDITS) || (comp2 & GR_AUDITS)))
55670 + gr_log_fs_rbac_str(GR_DO_AUDIT, GR_RENAME_ACL_MSG, old_dentry, old_mnt, newname);
55671 + else if (!RENAME_CHECK_SUCCESS(comp1, comp2) && !(comp1 & GR_SUPPRESS)
55672 + && !(comp2 & GR_SUPPRESS)) {
55673 + gr_log_fs_rbac_str(GR_DONT_AUDIT, GR_RENAME_ACL_MSG, old_dentry, old_mnt, newname);
55674 + error = -EACCES;
55675 + } else if (unlikely(!RENAME_CHECK_SUCCESS(comp1, comp2)))
55676 + error = -EACCES;
55677 +
55678 + return error;
55679 +}
55680 +
55681 +void
55682 +gr_acl_handle_exit(void)
55683 +{
55684 + u16 id;
55685 + char *rolename;
55686 + struct file *exec_file;
55687 +
55688 + if (unlikely(current->acl_sp_role && gr_acl_is_enabled() &&
55689 + !(current->role->roletype & GR_ROLE_PERSIST))) {
55690 + id = current->acl_role_id;
55691 + rolename = current->role->rolename;
55692 + gr_set_acls(1);
55693 + gr_log_str_int(GR_DONT_AUDIT_GOOD, GR_SPROLEL_ACL_MSG, rolename, id);
55694 + }
55695 +
55696 + write_lock(&grsec_exec_file_lock);
55697 + exec_file = current->exec_file;
55698 + current->exec_file = NULL;
55699 + write_unlock(&grsec_exec_file_lock);
55700 +
55701 + if (exec_file)
55702 + fput(exec_file);
55703 +}
55704 +
55705 +int
55706 +gr_acl_handle_procpidmem(const struct task_struct *task)
55707 +{
55708 + if (unlikely(!gr_acl_is_enabled()))
55709 + return 0;
55710 +
55711 + if (task != current && task->acl->mode & GR_PROTPROCFD)
55712 + return -EACCES;
55713 +
55714 + return 0;
55715 +}
55716 diff --git a/grsecurity/gracl_ip.c b/grsecurity/gracl_ip.c
55717 new file mode 100644
55718 index 0000000..58800a7
55719 --- /dev/null
55720 +++ b/grsecurity/gracl_ip.c
55721 @@ -0,0 +1,384 @@
55722 +#include <linux/kernel.h>
55723 +#include <asm/uaccess.h>
55724 +#include <asm/errno.h>
55725 +#include <net/sock.h>
55726 +#include <linux/file.h>
55727 +#include <linux/fs.h>
55728 +#include <linux/net.h>
55729 +#include <linux/in.h>
55730 +#include <linux/skbuff.h>
55731 +#include <linux/ip.h>
55732 +#include <linux/udp.h>
55733 +#include <linux/types.h>
55734 +#include <linux/sched.h>
55735 +#include <linux/netdevice.h>
55736 +#include <linux/inetdevice.h>
55737 +#include <linux/gracl.h>
55738 +#include <linux/grsecurity.h>
55739 +#include <linux/grinternal.h>
55740 +
55741 +#define GR_BIND 0x01
55742 +#define GR_CONNECT 0x02
55743 +#define GR_INVERT 0x04
55744 +#define GR_BINDOVERRIDE 0x08
55745 +#define GR_CONNECTOVERRIDE 0x10
55746 +#define GR_SOCK_FAMILY 0x20
55747 +
55748 +static const char * gr_protocols[IPPROTO_MAX] = {
55749 + "ip", "icmp", "igmp", "ggp", "ipencap", "st", "tcp", "cbt",
55750 + "egp", "igp", "bbn-rcc", "nvp", "pup", "argus", "emcon", "xnet",
55751 + "chaos", "udp", "mux", "dcn", "hmp", "prm", "xns-idp", "trunk-1",
55752 + "trunk-2", "leaf-1", "leaf-2", "rdp", "irtp", "iso-tp4", "netblt", "mfe-nsp",
55753 + "merit-inp", "sep", "3pc", "idpr", "xtp", "ddp", "idpr-cmtp", "tp++",
55754 + "il", "ipv6", "sdrp", "ipv6-route", "ipv6-frag", "idrp", "rsvp", "gre",
55755 + "mhrp", "bna", "ipv6-crypt", "ipv6-auth", "i-nlsp", "swipe", "narp", "mobile",
55756 + "tlsp", "skip", "ipv6-icmp", "ipv6-nonxt", "ipv6-opts", "unknown:61", "cftp", "unknown:63",
55757 + "sat-expak", "kryptolan", "rvd", "ippc", "unknown:68", "sat-mon", "visa", "ipcv",
55758 + "cpnx", "cphb", "wsn", "pvp", "br-sat-mon", "sun-nd", "wb-mon", "wb-expak",
55759 + "iso-ip", "vmtp", "secure-vmtp", "vines", "ttp", "nfsnet-igp", "dgp", "tcf",
55760 + "eigrp", "ospf", "sprite-rpc", "larp", "mtp", "ax.25", "ipip", "micp",
55761 + "scc-sp", "etherip", "encap", "unknown:99", "gmtp", "ifmp", "pnni", "pim",
55762 + "aris", "scps", "qnx", "a/n", "ipcomp", "snp", "compaq-peer", "ipx-in-ip",
55763 + "vrrp", "pgm", "unknown:114", "l2tp", "ddx", "iatp", "stp", "srp",
55764 + "uti", "smp", "sm", "ptp", "isis", "fire", "crtp", "crdup",
55765 + "sscopmce", "iplt", "sps", "pipe", "sctp", "fc", "unkown:134", "unknown:135",
55766 + "unknown:136", "unknown:137", "unknown:138", "unknown:139", "unknown:140", "unknown:141", "unknown:142", "unknown:143",
55767 + "unknown:144", "unknown:145", "unknown:146", "unknown:147", "unknown:148", "unknown:149", "unknown:150", "unknown:151",
55768 + "unknown:152", "unknown:153", "unknown:154", "unknown:155", "unknown:156", "unknown:157", "unknown:158", "unknown:159",
55769 + "unknown:160", "unknown:161", "unknown:162", "unknown:163", "unknown:164", "unknown:165", "unknown:166", "unknown:167",
55770 + "unknown:168", "unknown:169", "unknown:170", "unknown:171", "unknown:172", "unknown:173", "unknown:174", "unknown:175",
55771 + "unknown:176", "unknown:177", "unknown:178", "unknown:179", "unknown:180", "unknown:181", "unknown:182", "unknown:183",
55772 + "unknown:184", "unknown:185", "unknown:186", "unknown:187", "unknown:188", "unknown:189", "unknown:190", "unknown:191",
55773 + "unknown:192", "unknown:193", "unknown:194", "unknown:195", "unknown:196", "unknown:197", "unknown:198", "unknown:199",
55774 + "unknown:200", "unknown:201", "unknown:202", "unknown:203", "unknown:204", "unknown:205", "unknown:206", "unknown:207",
55775 + "unknown:208", "unknown:209", "unknown:210", "unknown:211", "unknown:212", "unknown:213", "unknown:214", "unknown:215",
55776 + "unknown:216", "unknown:217", "unknown:218", "unknown:219", "unknown:220", "unknown:221", "unknown:222", "unknown:223",
55777 + "unknown:224", "unknown:225", "unknown:226", "unknown:227", "unknown:228", "unknown:229", "unknown:230", "unknown:231",
55778 + "unknown:232", "unknown:233", "unknown:234", "unknown:235", "unknown:236", "unknown:237", "unknown:238", "unknown:239",
55779 + "unknown:240", "unknown:241", "unknown:242", "unknown:243", "unknown:244", "unknown:245", "unknown:246", "unknown:247",
55780 + "unknown:248", "unknown:249", "unknown:250", "unknown:251", "unknown:252", "unknown:253", "unknown:254", "unknown:255",
55781 + };
55782 +
55783 +static const char * gr_socktypes[SOCK_MAX] = {
55784 + "unknown:0", "stream", "dgram", "raw", "rdm", "seqpacket", "unknown:6",
55785 + "unknown:7", "unknown:8", "unknown:9", "packet"
55786 + };
55787 +
55788 +static const char * gr_sockfamilies[AF_MAX+1] = {
55789 + "unspec", "unix", "inet", "ax25", "ipx", "appletalk", "netrom", "bridge", "atmpvc", "x25",
55790 + "inet6", "rose", "decnet", "netbeui", "security", "key", "netlink", "packet", "ash",
55791 + "econet", "atmsvc", "rds", "sna", "irda", "ppox", "wanpipe", "llc", "fam_27", "fam_28",
55792 + "tipc", "bluetooth", "iucv", "rxrpc", "isdn", "phonet", "ieee802154", "ciaf"
55793 + };
55794 +
55795 +const char *
55796 +gr_proto_to_name(unsigned char proto)
55797 +{
55798 + return gr_protocols[proto];
55799 +}
55800 +
55801 +const char *
55802 +gr_socktype_to_name(unsigned char type)
55803 +{
55804 + return gr_socktypes[type];
55805 +}
55806 +
55807 +const char *
55808 +gr_sockfamily_to_name(unsigned char family)
55809 +{
55810 + return gr_sockfamilies[family];
55811 +}
55812 +
55813 +int
55814 +gr_search_socket(const int domain, const int type, const int protocol)
55815 +{
55816 + struct acl_subject_label *curr;
55817 + const struct cred *cred = current_cred();
55818 +
55819 + if (unlikely(!gr_acl_is_enabled()))
55820 + goto exit;
55821 +
55822 + if ((domain < 0) || (type < 0) || (protocol < 0) ||
55823 + (domain >= AF_MAX) || (type >= SOCK_MAX) || (protocol >= IPPROTO_MAX))
55824 + goto exit; // let the kernel handle it
55825 +
55826 + curr = current->acl;
55827 +
55828 + if (curr->sock_families[domain / 32] & (1 << (domain % 32))) {
55829 + /* the family is allowed, if this is PF_INET allow it only if
55830 + the extra sock type/protocol checks pass */
55831 + if (domain == PF_INET)
55832 + goto inet_check;
55833 + goto exit;
55834 + } else {
55835 + if (curr->mode & (GR_LEARN | GR_INHERITLEARN)) {
55836 + __u32 fakeip = 0;
55837 + security_learn(GR_IP_LEARN_MSG, current->role->rolename,
55838 + current->role->roletype, cred->uid,
55839 + cred->gid, current->exec_file ?
55840 + gr_to_filename(current->exec_file->f_path.dentry,
55841 + current->exec_file->f_path.mnt) :
55842 + curr->filename, curr->filename,
55843 + &fakeip, domain, 0, 0, GR_SOCK_FAMILY,
55844 + &current->signal->saved_ip);
55845 + goto exit;
55846 + }
55847 + goto exit_fail;
55848 + }
55849 +
55850 +inet_check:
55851 + /* the rest of this checking is for IPv4 only */
55852 + if (!curr->ips)
55853 + goto exit;
55854 +
55855 + if ((curr->ip_type & (1 << type)) &&
55856 + (curr->ip_proto[protocol / 32] & (1 << (protocol % 32))))
55857 + goto exit;
55858 +
55859 + if (curr->mode & (GR_LEARN | GR_INHERITLEARN)) {
55860 + /* we don't place acls on raw sockets , and sometimes
55861 + dgram/ip sockets are opened for ioctl and not
55862 + bind/connect, so we'll fake a bind learn log */
55863 + if (type == SOCK_RAW || type == SOCK_PACKET) {
55864 + __u32 fakeip = 0;
55865 + security_learn(GR_IP_LEARN_MSG, current->role->rolename,
55866 + current->role->roletype, cred->uid,
55867 + cred->gid, current->exec_file ?
55868 + gr_to_filename(current->exec_file->f_path.dentry,
55869 + current->exec_file->f_path.mnt) :
55870 + curr->filename, curr->filename,
55871 + &fakeip, 0, type,
55872 + protocol, GR_CONNECT, &current->signal->saved_ip);
55873 + } else if ((type == SOCK_DGRAM) && (protocol == IPPROTO_IP)) {
55874 + __u32 fakeip = 0;
55875 + security_learn(GR_IP_LEARN_MSG, current->role->rolename,
55876 + current->role->roletype, cred->uid,
55877 + cred->gid, current->exec_file ?
55878 + gr_to_filename(current->exec_file->f_path.dentry,
55879 + current->exec_file->f_path.mnt) :
55880 + curr->filename, curr->filename,
55881 + &fakeip, 0, type,
55882 + protocol, GR_BIND, &current->signal->saved_ip);
55883 + }
55884 + /* we'll log when they use connect or bind */
55885 + goto exit;
55886 + }
55887 +
55888 +exit_fail:
55889 + if (domain == PF_INET)
55890 + gr_log_str3(GR_DONT_AUDIT, GR_SOCK_MSG, gr_sockfamily_to_name(domain),
55891 + gr_socktype_to_name(type), gr_proto_to_name(protocol));
55892 + else
55893 + gr_log_str2_int(GR_DONT_AUDIT, GR_SOCK_NOINET_MSG, gr_sockfamily_to_name(domain),
55894 + gr_socktype_to_name(type), protocol);
55895 +
55896 + return 0;
55897 +exit:
55898 + return 1;
55899 +}
55900 +
55901 +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)
55902 +{
55903 + if ((ip->mode & mode) &&
55904 + (ip_port >= ip->low) &&
55905 + (ip_port <= ip->high) &&
55906 + ((ntohl(ip_addr) & our_netmask) ==
55907 + (ntohl(our_addr) & our_netmask))
55908 + && (ip->proto[protocol / 32] & (1 << (protocol % 32)))
55909 + && (ip->type & (1 << type))) {
55910 + if (ip->mode & GR_INVERT)
55911 + return 2; // specifically denied
55912 + else
55913 + return 1; // allowed
55914 + }
55915 +
55916 + return 0; // not specifically allowed, may continue parsing
55917 +}
55918 +
55919 +static int
55920 +gr_search_connectbind(const int full_mode, struct sock *sk,
55921 + struct sockaddr_in *addr, const int type)
55922 +{
55923 + char iface[IFNAMSIZ] = {0};
55924 + struct acl_subject_label *curr;
55925 + struct acl_ip_label *ip;
55926 + struct inet_sock *isk;
55927 + struct net_device *dev;
55928 + struct in_device *idev;
55929 + unsigned long i;
55930 + int ret;
55931 + int mode = full_mode & (GR_BIND | GR_CONNECT);
55932 + __u32 ip_addr = 0;
55933 + __u32 our_addr;
55934 + __u32 our_netmask;
55935 + char *p;
55936 + __u16 ip_port = 0;
55937 + const struct cred *cred = current_cred();
55938 +
55939 + if (unlikely(!gr_acl_is_enabled() || sk->sk_family != PF_INET))
55940 + return 0;
55941 +
55942 + curr = current->acl;
55943 + isk = inet_sk(sk);
55944 +
55945 + /* INADDR_ANY overriding for binds, inaddr_any_override is already in network order */
55946 + if ((full_mode & GR_BINDOVERRIDE) && addr->sin_addr.s_addr == htonl(INADDR_ANY) && curr->inaddr_any_override != 0)
55947 + addr->sin_addr.s_addr = curr->inaddr_any_override;
55948 + if ((full_mode & GR_CONNECT) && isk->inet_saddr == htonl(INADDR_ANY) && curr->inaddr_any_override != 0) {
55949 + struct sockaddr_in saddr;
55950 + int err;
55951 +
55952 + saddr.sin_family = AF_INET;
55953 + saddr.sin_addr.s_addr = curr->inaddr_any_override;
55954 + saddr.sin_port = isk->inet_sport;
55955 +
55956 + err = security_socket_bind(sk->sk_socket, (struct sockaddr *)&saddr, sizeof(struct sockaddr_in));
55957 + if (err)
55958 + return err;
55959 +
55960 + err = sk->sk_socket->ops->bind(sk->sk_socket, (struct sockaddr *)&saddr, sizeof(struct sockaddr_in));
55961 + if (err)
55962 + return err;
55963 + }
55964 +
55965 + if (!curr->ips)
55966 + return 0;
55967 +
55968 + ip_addr = addr->sin_addr.s_addr;
55969 + ip_port = ntohs(addr->sin_port);
55970 +
55971 + if (curr->mode & (GR_LEARN | GR_INHERITLEARN)) {
55972 + security_learn(GR_IP_LEARN_MSG, current->role->rolename,
55973 + current->role->roletype, cred->uid,
55974 + cred->gid, current->exec_file ?
55975 + gr_to_filename(current->exec_file->f_path.dentry,
55976 + current->exec_file->f_path.mnt) :
55977 + curr->filename, curr->filename,
55978 + &ip_addr, ip_port, type,
55979 + sk->sk_protocol, mode, &current->signal->saved_ip);
55980 + return 0;
55981 + }
55982 +
55983 + for (i = 0; i < curr->ip_num; i++) {
55984 + ip = *(curr->ips + i);
55985 + if (ip->iface != NULL) {
55986 + strncpy(iface, ip->iface, IFNAMSIZ - 1);
55987 + p = strchr(iface, ':');
55988 + if (p != NULL)
55989 + *p = '\0';
55990 + dev = dev_get_by_name(sock_net(sk), iface);
55991 + if (dev == NULL)
55992 + continue;
55993 + idev = in_dev_get(dev);
55994 + if (idev == NULL) {
55995 + dev_put(dev);
55996 + continue;
55997 + }
55998 + rcu_read_lock();
55999 + for_ifa(idev) {
56000 + if (!strcmp(ip->iface, ifa->ifa_label)) {
56001 + our_addr = ifa->ifa_address;
56002 + our_netmask = 0xffffffff;
56003 + ret = check_ip_policy(ip, ip_addr, ip_port, sk->sk_protocol, mode, type, our_addr, our_netmask);
56004 + if (ret == 1) {
56005 + rcu_read_unlock();
56006 + in_dev_put(idev);
56007 + dev_put(dev);
56008 + return 0;
56009 + } else if (ret == 2) {
56010 + rcu_read_unlock();
56011 + in_dev_put(idev);
56012 + dev_put(dev);
56013 + goto denied;
56014 + }
56015 + }
56016 + } endfor_ifa(idev);
56017 + rcu_read_unlock();
56018 + in_dev_put(idev);
56019 + dev_put(dev);
56020 + } else {
56021 + our_addr = ip->addr;
56022 + our_netmask = ip->netmask;
56023 + ret = check_ip_policy(ip, ip_addr, ip_port, sk->sk_protocol, mode, type, our_addr, our_netmask);
56024 + if (ret == 1)
56025 + return 0;
56026 + else if (ret == 2)
56027 + goto denied;
56028 + }
56029 + }
56030 +
56031 +denied:
56032 + if (mode == GR_BIND)
56033 + 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));
56034 + else if (mode == GR_CONNECT)
56035 + 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));
56036 +
56037 + return -EACCES;
56038 +}
56039 +
56040 +int
56041 +gr_search_connect(struct socket *sock, struct sockaddr_in *addr)
56042 +{
56043 + /* always allow disconnection of dgram sockets with connect */
56044 + if (addr->sin_family == AF_UNSPEC)
56045 + return 0;
56046 + return gr_search_connectbind(GR_CONNECT | GR_CONNECTOVERRIDE, sock->sk, addr, sock->type);
56047 +}
56048 +
56049 +int
56050 +gr_search_bind(struct socket *sock, struct sockaddr_in *addr)
56051 +{
56052 + return gr_search_connectbind(GR_BIND | GR_BINDOVERRIDE, sock->sk, addr, sock->type);
56053 +}
56054 +
56055 +int gr_search_listen(struct socket *sock)
56056 +{
56057 + struct sock *sk = sock->sk;
56058 + struct sockaddr_in addr;
56059 +
56060 + addr.sin_addr.s_addr = inet_sk(sk)->inet_saddr;
56061 + addr.sin_port = inet_sk(sk)->inet_sport;
56062 +
56063 + return gr_search_connectbind(GR_BIND | GR_CONNECTOVERRIDE, sock->sk, &addr, sock->type);
56064 +}
56065 +
56066 +int gr_search_accept(struct socket *sock)
56067 +{
56068 + struct sock *sk = sock->sk;
56069 + struct sockaddr_in addr;
56070 +
56071 + addr.sin_addr.s_addr = inet_sk(sk)->inet_saddr;
56072 + addr.sin_port = inet_sk(sk)->inet_sport;
56073 +
56074 + return gr_search_connectbind(GR_BIND | GR_CONNECTOVERRIDE, sock->sk, &addr, sock->type);
56075 +}
56076 +
56077 +int
56078 +gr_search_udp_sendmsg(struct sock *sk, struct sockaddr_in *addr)
56079 +{
56080 + if (addr)
56081 + return gr_search_connectbind(GR_CONNECT, sk, addr, SOCK_DGRAM);
56082 + else {
56083 + struct sockaddr_in sin;
56084 + const struct inet_sock *inet = inet_sk(sk);
56085 +
56086 + sin.sin_addr.s_addr = inet->inet_daddr;
56087 + sin.sin_port = inet->inet_dport;
56088 +
56089 + return gr_search_connectbind(GR_CONNECT | GR_CONNECTOVERRIDE, sk, &sin, SOCK_DGRAM);
56090 + }
56091 +}
56092 +
56093 +int
56094 +gr_search_udp_recvmsg(struct sock *sk, const struct sk_buff *skb)
56095 +{
56096 + struct sockaddr_in sin;
56097 +
56098 + if (unlikely(skb->len < sizeof (struct udphdr)))
56099 + return 0; // skip this packet
56100 +
56101 + sin.sin_addr.s_addr = ip_hdr(skb)->saddr;
56102 + sin.sin_port = udp_hdr(skb)->source;
56103 +
56104 + return gr_search_connectbind(GR_CONNECT | GR_CONNECTOVERRIDE, sk, &sin, SOCK_DGRAM);
56105 +}
56106 diff --git a/grsecurity/gracl_learn.c b/grsecurity/gracl_learn.c
56107 new file mode 100644
56108 index 0000000..25f54ef
56109 --- /dev/null
56110 +++ b/grsecurity/gracl_learn.c
56111 @@ -0,0 +1,207 @@
56112 +#include <linux/kernel.h>
56113 +#include <linux/mm.h>
56114 +#include <linux/sched.h>
56115 +#include <linux/poll.h>
56116 +#include <linux/string.h>
56117 +#include <linux/file.h>
56118 +#include <linux/types.h>
56119 +#include <linux/vmalloc.h>
56120 +#include <linux/grinternal.h>
56121 +
56122 +extern ssize_t write_grsec_handler(struct file * file, const char __user * buf,
56123 + size_t count, loff_t *ppos);
56124 +extern int gr_acl_is_enabled(void);
56125 +
56126 +static DECLARE_WAIT_QUEUE_HEAD(learn_wait);
56127 +static int gr_learn_attached;
56128 +
56129 +/* use a 512k buffer */
56130 +#define LEARN_BUFFER_SIZE (512 * 1024)
56131 +
56132 +static DEFINE_SPINLOCK(gr_learn_lock);
56133 +static DEFINE_MUTEX(gr_learn_user_mutex);
56134 +
56135 +/* we need to maintain two buffers, so that the kernel context of grlearn
56136 + uses a semaphore around the userspace copying, and the other kernel contexts
56137 + use a spinlock when copying into the buffer, since they cannot sleep
56138 +*/
56139 +static char *learn_buffer;
56140 +static char *learn_buffer_user;
56141 +static int learn_buffer_len;
56142 +static int learn_buffer_user_len;
56143 +
56144 +static ssize_t
56145 +read_learn(struct file *file, char __user * buf, size_t count, loff_t * ppos)
56146 +{
56147 + DECLARE_WAITQUEUE(wait, current);
56148 + ssize_t retval = 0;
56149 +
56150 + add_wait_queue(&learn_wait, &wait);
56151 + set_current_state(TASK_INTERRUPTIBLE);
56152 + do {
56153 + mutex_lock(&gr_learn_user_mutex);
56154 + spin_lock(&gr_learn_lock);
56155 + if (learn_buffer_len)
56156 + break;
56157 + spin_unlock(&gr_learn_lock);
56158 + mutex_unlock(&gr_learn_user_mutex);
56159 + if (file->f_flags & O_NONBLOCK) {
56160 + retval = -EAGAIN;
56161 + goto out;
56162 + }
56163 + if (signal_pending(current)) {
56164 + retval = -ERESTARTSYS;
56165 + goto out;
56166 + }
56167 +
56168 + schedule();
56169 + } while (1);
56170 +
56171 + memcpy(learn_buffer_user, learn_buffer, learn_buffer_len);
56172 + learn_buffer_user_len = learn_buffer_len;
56173 + retval = learn_buffer_len;
56174 + learn_buffer_len = 0;
56175 +
56176 + spin_unlock(&gr_learn_lock);
56177 +
56178 + if (copy_to_user(buf, learn_buffer_user, learn_buffer_user_len))
56179 + retval = -EFAULT;
56180 +
56181 + mutex_unlock(&gr_learn_user_mutex);
56182 +out:
56183 + set_current_state(TASK_RUNNING);
56184 + remove_wait_queue(&learn_wait, &wait);
56185 + return retval;
56186 +}
56187 +
56188 +static unsigned int
56189 +poll_learn(struct file * file, poll_table * wait)
56190 +{
56191 + poll_wait(file, &learn_wait, wait);
56192 +
56193 + if (learn_buffer_len)
56194 + return (POLLIN | POLLRDNORM);
56195 +
56196 + return 0;
56197 +}
56198 +
56199 +void
56200 +gr_clear_learn_entries(void)
56201 +{
56202 + char *tmp;
56203 +
56204 + mutex_lock(&gr_learn_user_mutex);
56205 + spin_lock(&gr_learn_lock);
56206 + tmp = learn_buffer;
56207 + learn_buffer = NULL;
56208 + spin_unlock(&gr_learn_lock);
56209 + if (tmp)
56210 + vfree(tmp);
56211 + if (learn_buffer_user != NULL) {
56212 + vfree(learn_buffer_user);
56213 + learn_buffer_user = NULL;
56214 + }
56215 + learn_buffer_len = 0;
56216 + mutex_unlock(&gr_learn_user_mutex);
56217 +
56218 + return;
56219 +}
56220 +
56221 +void
56222 +gr_add_learn_entry(const char *fmt, ...)
56223 +{
56224 + va_list args;
56225 + unsigned int len;
56226 +
56227 + if (!gr_learn_attached)
56228 + return;
56229 +
56230 + spin_lock(&gr_learn_lock);
56231 +
56232 + /* leave a gap at the end so we know when it's "full" but don't have to
56233 + compute the exact length of the string we're trying to append
56234 + */
56235 + if (learn_buffer_len > LEARN_BUFFER_SIZE - 16384) {
56236 + spin_unlock(&gr_learn_lock);
56237 + wake_up_interruptible(&learn_wait);
56238 + return;
56239 + }
56240 + if (learn_buffer == NULL) {
56241 + spin_unlock(&gr_learn_lock);
56242 + return;
56243 + }
56244 +
56245 + va_start(args, fmt);
56246 + len = vsnprintf(learn_buffer + learn_buffer_len, LEARN_BUFFER_SIZE - learn_buffer_len, fmt, args);
56247 + va_end(args);
56248 +
56249 + learn_buffer_len += len + 1;
56250 +
56251 + spin_unlock(&gr_learn_lock);
56252 + wake_up_interruptible(&learn_wait);
56253 +
56254 + return;
56255 +}
56256 +
56257 +static int
56258 +open_learn(struct inode *inode, struct file *file)
56259 +{
56260 + if (file->f_mode & FMODE_READ && gr_learn_attached)
56261 + return -EBUSY;
56262 + if (file->f_mode & FMODE_READ) {
56263 + int retval = 0;
56264 + mutex_lock(&gr_learn_user_mutex);
56265 + if (learn_buffer == NULL)
56266 + learn_buffer = vmalloc(LEARN_BUFFER_SIZE);
56267 + if (learn_buffer_user == NULL)
56268 + learn_buffer_user = vmalloc(LEARN_BUFFER_SIZE);
56269 + if (learn_buffer == NULL) {
56270 + retval = -ENOMEM;
56271 + goto out_error;
56272 + }
56273 + if (learn_buffer_user == NULL) {
56274 + retval = -ENOMEM;
56275 + goto out_error;
56276 + }
56277 + learn_buffer_len = 0;
56278 + learn_buffer_user_len = 0;
56279 + gr_learn_attached = 1;
56280 +out_error:
56281 + mutex_unlock(&gr_learn_user_mutex);
56282 + return retval;
56283 + }
56284 + return 0;
56285 +}
56286 +
56287 +static int
56288 +close_learn(struct inode *inode, struct file *file)
56289 +{
56290 + if (file->f_mode & FMODE_READ) {
56291 + char *tmp = NULL;
56292 + mutex_lock(&gr_learn_user_mutex);
56293 + spin_lock(&gr_learn_lock);
56294 + tmp = learn_buffer;
56295 + learn_buffer = NULL;
56296 + spin_unlock(&gr_learn_lock);
56297 + if (tmp)
56298 + vfree(tmp);
56299 + if (learn_buffer_user != NULL) {
56300 + vfree(learn_buffer_user);
56301 + learn_buffer_user = NULL;
56302 + }
56303 + learn_buffer_len = 0;
56304 + learn_buffer_user_len = 0;
56305 + gr_learn_attached = 0;
56306 + mutex_unlock(&gr_learn_user_mutex);
56307 + }
56308 +
56309 + return 0;
56310 +}
56311 +
56312 +const struct file_operations grsec_fops = {
56313 + .read = read_learn,
56314 + .write = write_grsec_handler,
56315 + .open = open_learn,
56316 + .release = close_learn,
56317 + .poll = poll_learn,
56318 +};
56319 diff --git a/grsecurity/gracl_res.c b/grsecurity/gracl_res.c
56320 new file mode 100644
56321 index 0000000..39645c9
56322 --- /dev/null
56323 +++ b/grsecurity/gracl_res.c
56324 @@ -0,0 +1,68 @@
56325 +#include <linux/kernel.h>
56326 +#include <linux/sched.h>
56327 +#include <linux/gracl.h>
56328 +#include <linux/grinternal.h>
56329 +
56330 +static const char *restab_log[] = {
56331 + [RLIMIT_CPU] = "RLIMIT_CPU",
56332 + [RLIMIT_FSIZE] = "RLIMIT_FSIZE",
56333 + [RLIMIT_DATA] = "RLIMIT_DATA",
56334 + [RLIMIT_STACK] = "RLIMIT_STACK",
56335 + [RLIMIT_CORE] = "RLIMIT_CORE",
56336 + [RLIMIT_RSS] = "RLIMIT_RSS",
56337 + [RLIMIT_NPROC] = "RLIMIT_NPROC",
56338 + [RLIMIT_NOFILE] = "RLIMIT_NOFILE",
56339 + [RLIMIT_MEMLOCK] = "RLIMIT_MEMLOCK",
56340 + [RLIMIT_AS] = "RLIMIT_AS",
56341 + [RLIMIT_LOCKS] = "RLIMIT_LOCKS",
56342 + [RLIMIT_SIGPENDING] = "RLIMIT_SIGPENDING",
56343 + [RLIMIT_MSGQUEUE] = "RLIMIT_MSGQUEUE",
56344 + [RLIMIT_NICE] = "RLIMIT_NICE",
56345 + [RLIMIT_RTPRIO] = "RLIMIT_RTPRIO",
56346 + [RLIMIT_RTTIME] = "RLIMIT_RTTIME",
56347 + [GR_CRASH_RES] = "RLIMIT_CRASH"
56348 +};
56349 +
56350 +void
56351 +gr_log_resource(const struct task_struct *task,
56352 + const int res, const unsigned long wanted, const int gt)
56353 +{
56354 + const struct cred *cred;
56355 + unsigned long rlim;
56356 +
56357 + if (!gr_acl_is_enabled() && !grsec_resource_logging)
56358 + return;
56359 +
56360 + // not yet supported resource
56361 + if (unlikely(!restab_log[res]))
56362 + return;
56363 +
56364 + if (res == RLIMIT_CPU || res == RLIMIT_RTTIME)
56365 + rlim = task_rlimit_max(task, res);
56366 + else
56367 + rlim = task_rlimit(task, res);
56368 +
56369 + if (likely((rlim == RLIM_INFINITY) || (gt && wanted <= rlim) || (!gt && wanted < rlim)))
56370 + return;
56371 +
56372 + rcu_read_lock();
56373 + cred = __task_cred(task);
56374 +
56375 + if (res == RLIMIT_NPROC &&
56376 + (cap_raised(cred->cap_effective, CAP_SYS_ADMIN) ||
56377 + cap_raised(cred->cap_effective, CAP_SYS_RESOURCE)))
56378 + goto out_rcu_unlock;
56379 + else if (res == RLIMIT_MEMLOCK &&
56380 + cap_raised(cred->cap_effective, CAP_IPC_LOCK))
56381 + goto out_rcu_unlock;
56382 + else if (res == RLIMIT_NICE && cap_raised(cred->cap_effective, CAP_SYS_NICE))
56383 + goto out_rcu_unlock;
56384 + rcu_read_unlock();
56385 +
56386 + gr_log_res_ulong2_str(GR_DONT_AUDIT, GR_RESOURCE_MSG, task, wanted, restab_log[res], rlim);
56387 +
56388 + return;
56389 +out_rcu_unlock:
56390 + rcu_read_unlock();
56391 + return;
56392 +}
56393 diff --git a/grsecurity/gracl_segv.c b/grsecurity/gracl_segv.c
56394 new file mode 100644
56395 index 0000000..25197e9
56396 --- /dev/null
56397 +++ b/grsecurity/gracl_segv.c
56398 @@ -0,0 +1,299 @@
56399 +#include <linux/kernel.h>
56400 +#include <linux/mm.h>
56401 +#include <asm/uaccess.h>
56402 +#include <asm/errno.h>
56403 +#include <asm/mman.h>
56404 +#include <net/sock.h>
56405 +#include <linux/file.h>
56406 +#include <linux/fs.h>
56407 +#include <linux/net.h>
56408 +#include <linux/in.h>
56409 +#include <linux/slab.h>
56410 +#include <linux/types.h>
56411 +#include <linux/sched.h>
56412 +#include <linux/timer.h>
56413 +#include <linux/gracl.h>
56414 +#include <linux/grsecurity.h>
56415 +#include <linux/grinternal.h>
56416 +
56417 +static struct crash_uid *uid_set;
56418 +static unsigned short uid_used;
56419 +static DEFINE_SPINLOCK(gr_uid_lock);
56420 +extern rwlock_t gr_inode_lock;
56421 +extern struct acl_subject_label *
56422 + lookup_acl_subj_label(const ino_t inode, const dev_t dev,
56423 + struct acl_role_label *role);
56424 +
56425 +#ifdef CONFIG_BTRFS_FS
56426 +extern dev_t get_btrfs_dev_from_inode(struct inode *inode);
56427 +extern int btrfs_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat);
56428 +#endif
56429 +
56430 +static inline dev_t __get_dev(const struct dentry *dentry)
56431 +{
56432 +#ifdef CONFIG_BTRFS_FS
56433 + if (dentry->d_inode->i_op && dentry->d_inode->i_op->getattr == &btrfs_getattr)
56434 + return get_btrfs_dev_from_inode(dentry->d_inode);
56435 + else
56436 +#endif
56437 + return dentry->d_inode->i_sb->s_dev;
56438 +}
56439 +
56440 +int
56441 +gr_init_uidset(void)
56442 +{
56443 + uid_set =
56444 + kmalloc(GR_UIDTABLE_MAX * sizeof (struct crash_uid), GFP_KERNEL);
56445 + uid_used = 0;
56446 +
56447 + return uid_set ? 1 : 0;
56448 +}
56449 +
56450 +void
56451 +gr_free_uidset(void)
56452 +{
56453 + if (uid_set)
56454 + kfree(uid_set);
56455 +
56456 + return;
56457 +}
56458 +
56459 +int
56460 +gr_find_uid(const uid_t uid)
56461 +{
56462 + struct crash_uid *tmp = uid_set;
56463 + uid_t buid;
56464 + int low = 0, high = uid_used - 1, mid;
56465 +
56466 + while (high >= low) {
56467 + mid = (low + high) >> 1;
56468 + buid = tmp[mid].uid;
56469 + if (buid == uid)
56470 + return mid;
56471 + if (buid > uid)
56472 + high = mid - 1;
56473 + if (buid < uid)
56474 + low = mid + 1;
56475 + }
56476 +
56477 + return -1;
56478 +}
56479 +
56480 +static __inline__ void
56481 +gr_insertsort(void)
56482 +{
56483 + unsigned short i, j;
56484 + struct crash_uid index;
56485 +
56486 + for (i = 1; i < uid_used; i++) {
56487 + index = uid_set[i];
56488 + j = i;
56489 + while ((j > 0) && uid_set[j - 1].uid > index.uid) {
56490 + uid_set[j] = uid_set[j - 1];
56491 + j--;
56492 + }
56493 + uid_set[j] = index;
56494 + }
56495 +
56496 + return;
56497 +}
56498 +
56499 +static __inline__ void
56500 +gr_insert_uid(const uid_t uid, const unsigned long expires)
56501 +{
56502 + int loc;
56503 +
56504 + if (uid_used == GR_UIDTABLE_MAX)
56505 + return;
56506 +
56507 + loc = gr_find_uid(uid);
56508 +
56509 + if (loc >= 0) {
56510 + uid_set[loc].expires = expires;
56511 + return;
56512 + }
56513 +
56514 + uid_set[uid_used].uid = uid;
56515 + uid_set[uid_used].expires = expires;
56516 + uid_used++;
56517 +
56518 + gr_insertsort();
56519 +
56520 + return;
56521 +}
56522 +
56523 +void
56524 +gr_remove_uid(const unsigned short loc)
56525 +{
56526 + unsigned short i;
56527 +
56528 + for (i = loc + 1; i < uid_used; i++)
56529 + uid_set[i - 1] = uid_set[i];
56530 +
56531 + uid_used--;
56532 +
56533 + return;
56534 +}
56535 +
56536 +int
56537 +gr_check_crash_uid(const uid_t uid)
56538 +{
56539 + int loc;
56540 + int ret = 0;
56541 +
56542 + if (unlikely(!gr_acl_is_enabled()))
56543 + return 0;
56544 +
56545 + spin_lock(&gr_uid_lock);
56546 + loc = gr_find_uid(uid);
56547 +
56548 + if (loc < 0)
56549 + goto out_unlock;
56550 +
56551 + if (time_before_eq(uid_set[loc].expires, get_seconds()))
56552 + gr_remove_uid(loc);
56553 + else
56554 + ret = 1;
56555 +
56556 +out_unlock:
56557 + spin_unlock(&gr_uid_lock);
56558 + return ret;
56559 +}
56560 +
56561 +static __inline__ int
56562 +proc_is_setxid(const struct cred *cred)
56563 +{
56564 + if (!uid_eq(cred->uid, cred->euid) || !uid_eq(cred->uid, cred->suid) ||
56565 + !uid_eq(cred->uid, cred->fsuid))
56566 + return 1;
56567 + if (!uid_eq(cred->gid, cred->egid) || !uid_eq(cred->gid, cred->sgid) ||
56568 + !uid_eq(cred->gid, cred->fsgid))
56569 + return 1;
56570 +
56571 + return 0;
56572 +}
56573 +
56574 +extern int gr_fake_force_sig(int sig, struct task_struct *t);
56575 +
56576 +void
56577 +gr_handle_crash(struct task_struct *task, const int sig)
56578 +{
56579 + struct acl_subject_label *curr;
56580 + struct task_struct *tsk, *tsk2;
56581 + const struct cred *cred;
56582 + const struct cred *cred2;
56583 +
56584 + if (sig != SIGSEGV && sig != SIGKILL && sig != SIGBUS && sig != SIGILL)
56585 + return;
56586 +
56587 + if (unlikely(!gr_acl_is_enabled()))
56588 + return;
56589 +
56590 + curr = task->acl;
56591 +
56592 + if (!(curr->resmask & (1 << GR_CRASH_RES)))
56593 + return;
56594 +
56595 + if (time_before_eq(curr->expires, get_seconds())) {
56596 + curr->expires = 0;
56597 + curr->crashes = 0;
56598 + }
56599 +
56600 + curr->crashes++;
56601 +
56602 + if (!curr->expires)
56603 + curr->expires = get_seconds() + curr->res[GR_CRASH_RES].rlim_max;
56604 +
56605 + if ((curr->crashes >= curr->res[GR_CRASH_RES].rlim_cur) &&
56606 + time_after(curr->expires, get_seconds())) {
56607 + rcu_read_lock();
56608 + cred = __task_cred(task);
56609 + if (!uid_eq(cred->uid, GLOBAL_ROOT_UID) && proc_is_setxid(cred)) {
56610 + gr_log_crash1(GR_DONT_AUDIT, GR_SEGVSTART_ACL_MSG, task, curr->res[GR_CRASH_RES].rlim_max);
56611 + spin_lock(&gr_uid_lock);
56612 + gr_insert_uid(cred->uid, curr->expires);
56613 + spin_unlock(&gr_uid_lock);
56614 + curr->expires = 0;
56615 + curr->crashes = 0;
56616 + read_lock(&tasklist_lock);
56617 + do_each_thread(tsk2, tsk) {
56618 + cred2 = __task_cred(tsk);
56619 + if (tsk != task && uid_eq(cred2->uid, cred->uid))
56620 + gr_fake_force_sig(SIGKILL, tsk);
56621 + } while_each_thread(tsk2, tsk);
56622 + read_unlock(&tasklist_lock);
56623 + } else {
56624 + gr_log_crash2(GR_DONT_AUDIT, GR_SEGVNOSUID_ACL_MSG, task, curr->res[GR_CRASH_RES].rlim_max);
56625 + read_lock(&tasklist_lock);
56626 + read_lock(&grsec_exec_file_lock);
56627 + do_each_thread(tsk2, tsk) {
56628 + if (likely(tsk != task)) {
56629 + // if this thread has the same subject as the one that triggered
56630 + // RES_CRASH and it's the same binary, kill it
56631 + if (tsk->acl == task->acl && tsk->exec_file == task->exec_file)
56632 + gr_fake_force_sig(SIGKILL, tsk);
56633 + }
56634 + } while_each_thread(tsk2, tsk);
56635 + read_unlock(&grsec_exec_file_lock);
56636 + read_unlock(&tasklist_lock);
56637 + }
56638 + rcu_read_unlock();
56639 + }
56640 +
56641 + return;
56642 +}
56643 +
56644 +int
56645 +gr_check_crash_exec(const struct file *filp)
56646 +{
56647 + struct acl_subject_label *curr;
56648 +
56649 + if (unlikely(!gr_acl_is_enabled()))
56650 + return 0;
56651 +
56652 + read_lock(&gr_inode_lock);
56653 + curr = lookup_acl_subj_label(filp->f_path.dentry->d_inode->i_ino,
56654 + __get_dev(filp->f_path.dentry),
56655 + current->role);
56656 + read_unlock(&gr_inode_lock);
56657 +
56658 + if (!curr || !(curr->resmask & (1 << GR_CRASH_RES)) ||
56659 + (!curr->crashes && !curr->expires))
56660 + return 0;
56661 +
56662 + if ((curr->crashes >= curr->res[GR_CRASH_RES].rlim_cur) &&
56663 + time_after(curr->expires, get_seconds()))
56664 + return 1;
56665 + else if (time_before_eq(curr->expires, get_seconds())) {
56666 + curr->crashes = 0;
56667 + curr->expires = 0;
56668 + }
56669 +
56670 + return 0;
56671 +}
56672 +
56673 +void
56674 +gr_handle_alertkill(struct task_struct *task)
56675 +{
56676 + struct acl_subject_label *curracl;
56677 + __u32 curr_ip;
56678 + struct task_struct *p, *p2;
56679 +
56680 + if (unlikely(!gr_acl_is_enabled()))
56681 + return;
56682 +
56683 + curracl = task->acl;
56684 + curr_ip = task->signal->curr_ip;
56685 +
56686 + if ((curracl->mode & GR_KILLIPPROC) && curr_ip) {
56687 + read_lock(&tasklist_lock);
56688 + do_each_thread(p2, p) {
56689 + if (p->signal->curr_ip == curr_ip)
56690 + gr_fake_force_sig(SIGKILL, p);
56691 + } while_each_thread(p2, p);
56692 + read_unlock(&tasklist_lock);
56693 + } else if (curracl->mode & GR_KILLPROC)
56694 + gr_fake_force_sig(SIGKILL, task);
56695 +
56696 + return;
56697 +}
56698 diff --git a/grsecurity/gracl_shm.c b/grsecurity/gracl_shm.c
56699 new file mode 100644
56700 index 0000000..9d83a69
56701 --- /dev/null
56702 +++ b/grsecurity/gracl_shm.c
56703 @@ -0,0 +1,40 @@
56704 +#include <linux/kernel.h>
56705 +#include <linux/mm.h>
56706 +#include <linux/sched.h>
56707 +#include <linux/file.h>
56708 +#include <linux/ipc.h>
56709 +#include <linux/gracl.h>
56710 +#include <linux/grsecurity.h>
56711 +#include <linux/grinternal.h>
56712 +
56713 +int
56714 +gr_handle_shmat(const pid_t shm_cprid, const pid_t shm_lapid,
56715 + const time_t shm_createtime, const uid_t cuid, const int shmid)
56716 +{
56717 + struct task_struct *task;
56718 +
56719 + if (!gr_acl_is_enabled())
56720 + return 1;
56721 +
56722 + rcu_read_lock();
56723 + read_lock(&tasklist_lock);
56724 +
56725 + task = find_task_by_vpid(shm_cprid);
56726 +
56727 + if (unlikely(!task))
56728 + task = find_task_by_vpid(shm_lapid);
56729 +
56730 + if (unlikely(task && (time_before_eq((unsigned long)task->start_time.tv_sec, (unsigned long)shm_createtime) ||
56731 + (task->pid == shm_lapid)) &&
56732 + (task->acl->mode & GR_PROTSHM) &&
56733 + (task->acl != current->acl))) {
56734 + read_unlock(&tasklist_lock);
56735 + rcu_read_unlock();
56736 + gr_log_int3(GR_DONT_AUDIT, GR_SHMAT_ACL_MSG, cuid, shm_cprid, shmid);
56737 + return 0;
56738 + }
56739 + read_unlock(&tasklist_lock);
56740 + rcu_read_unlock();
56741 +
56742 + return 1;
56743 +}
56744 diff --git a/grsecurity/grsec_chdir.c b/grsecurity/grsec_chdir.c
56745 new file mode 100644
56746 index 0000000..bc0be01
56747 --- /dev/null
56748 +++ b/grsecurity/grsec_chdir.c
56749 @@ -0,0 +1,19 @@
56750 +#include <linux/kernel.h>
56751 +#include <linux/sched.h>
56752 +#include <linux/fs.h>
56753 +#include <linux/file.h>
56754 +#include <linux/grsecurity.h>
56755 +#include <linux/grinternal.h>
56756 +
56757 +void
56758 +gr_log_chdir(const struct dentry *dentry, const struct vfsmount *mnt)
56759 +{
56760 +#ifdef CONFIG_GRKERNSEC_AUDIT_CHDIR
56761 + if ((grsec_enable_chdir && grsec_enable_group &&
56762 + in_group_p(grsec_audit_gid)) || (grsec_enable_chdir &&
56763 + !grsec_enable_group)) {
56764 + gr_log_fs_generic(GR_DO_AUDIT, GR_CHDIR_AUDIT_MSG, dentry, mnt);
56765 + }
56766 +#endif
56767 + return;
56768 +}
56769 diff --git a/grsecurity/grsec_chroot.c b/grsecurity/grsec_chroot.c
56770 new file mode 100644
56771 index 0000000..9807ee2
56772 --- /dev/null
56773 +++ b/grsecurity/grsec_chroot.c
56774 @@ -0,0 +1,368 @@
56775 +#include <linux/kernel.h>
56776 +#include <linux/module.h>
56777 +#include <linux/sched.h>
56778 +#include <linux/file.h>
56779 +#include <linux/fs.h>
56780 +#include <linux/mount.h>
56781 +#include <linux/types.h>
56782 +#include "../fs/mount.h"
56783 +#include <linux/grsecurity.h>
56784 +#include <linux/grinternal.h>
56785 +
56786 +void gr_set_chroot_entries(struct task_struct *task, struct path *path)
56787 +{
56788 +#ifdef CONFIG_GRKERNSEC
56789 + if (task->pid > 1 && path->dentry != init_task.fs->root.dentry &&
56790 + path->dentry != task->nsproxy->mnt_ns->root->mnt.mnt_root)
56791 + task->gr_is_chrooted = 1;
56792 + else
56793 + task->gr_is_chrooted = 0;
56794 +
56795 + task->gr_chroot_dentry = path->dentry;
56796 +#endif
56797 + return;
56798 +}
56799 +
56800 +void gr_clear_chroot_entries(struct task_struct *task)
56801 +{
56802 +#ifdef CONFIG_GRKERNSEC
56803 + task->gr_is_chrooted = 0;
56804 + task->gr_chroot_dentry = NULL;
56805 +#endif
56806 + return;
56807 +}
56808 +
56809 +int
56810 +gr_handle_chroot_unix(const pid_t pid)
56811 +{
56812 +#ifdef CONFIG_GRKERNSEC_CHROOT_UNIX
56813 + struct task_struct *p;
56814 +
56815 + if (unlikely(!grsec_enable_chroot_unix))
56816 + return 1;
56817 +
56818 + if (likely(!proc_is_chrooted(current)))
56819 + return 1;
56820 +
56821 + rcu_read_lock();
56822 + read_lock(&tasklist_lock);
56823 + p = find_task_by_vpid_unrestricted(pid);
56824 + if (unlikely(p && !have_same_root(current, p))) {
56825 + read_unlock(&tasklist_lock);
56826 + rcu_read_unlock();
56827 + gr_log_noargs(GR_DONT_AUDIT, GR_UNIX_CHROOT_MSG);
56828 + return 0;
56829 + }
56830 + read_unlock(&tasklist_lock);
56831 + rcu_read_unlock();
56832 +#endif
56833 + return 1;
56834 +}
56835 +
56836 +int
56837 +gr_handle_chroot_nice(void)
56838 +{
56839 +#ifdef CONFIG_GRKERNSEC_CHROOT_NICE
56840 + if (grsec_enable_chroot_nice && proc_is_chrooted(current)) {
56841 + gr_log_noargs(GR_DONT_AUDIT, GR_NICE_CHROOT_MSG);
56842 + return -EPERM;
56843 + }
56844 +#endif
56845 + return 0;
56846 +}
56847 +
56848 +int
56849 +gr_handle_chroot_setpriority(struct task_struct *p, const int niceval)
56850 +{
56851 +#ifdef CONFIG_GRKERNSEC_CHROOT_NICE
56852 + if (grsec_enable_chroot_nice && (niceval < task_nice(p))
56853 + && proc_is_chrooted(current)) {
56854 + gr_log_str_int(GR_DONT_AUDIT, GR_PRIORITY_CHROOT_MSG, p->comm, p->pid);
56855 + return -EACCES;
56856 + }
56857 +#endif
56858 + return 0;
56859 +}
56860 +
56861 +int
56862 +gr_handle_chroot_rawio(const struct inode *inode)
56863 +{
56864 +#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS
56865 + if (grsec_enable_chroot_caps && proc_is_chrooted(current) &&
56866 + inode && S_ISBLK(inode->i_mode) && !capable(CAP_SYS_RAWIO))
56867 + return 1;
56868 +#endif
56869 + return 0;
56870 +}
56871 +
56872 +int
56873 +gr_handle_chroot_fowner(struct pid *pid, enum pid_type type)
56874 +{
56875 +#ifdef CONFIG_GRKERNSEC_CHROOT_FINDTASK
56876 + struct task_struct *p;
56877 + int ret = 0;
56878 + if (!grsec_enable_chroot_findtask || !proc_is_chrooted(current) || !pid)
56879 + return ret;
56880 +
56881 + read_lock(&tasklist_lock);
56882 + do_each_pid_task(pid, type, p) {
56883 + if (!have_same_root(current, p)) {
56884 + ret = 1;
56885 + goto out;
56886 + }
56887 + } while_each_pid_task(pid, type, p);
56888 +out:
56889 + read_unlock(&tasklist_lock);
56890 + return ret;
56891 +#endif
56892 + return 0;
56893 +}
56894 +
56895 +int
56896 +gr_pid_is_chrooted(struct task_struct *p)
56897 +{
56898 +#ifdef CONFIG_GRKERNSEC_CHROOT_FINDTASK
56899 + if (!grsec_enable_chroot_findtask || !proc_is_chrooted(current) || p == NULL)
56900 + return 0;
56901 +
56902 + if ((p->exit_state & (EXIT_ZOMBIE | EXIT_DEAD)) ||
56903 + !have_same_root(current, p)) {
56904 + return 1;
56905 + }
56906 +#endif
56907 + return 0;
56908 +}
56909 +
56910 +EXPORT_SYMBOL(gr_pid_is_chrooted);
56911 +
56912 +#if defined(CONFIG_GRKERNSEC_CHROOT_DOUBLE) || defined(CONFIG_GRKERNSEC_CHROOT_FCHDIR)
56913 +int gr_is_outside_chroot(const struct dentry *u_dentry, const struct vfsmount *u_mnt)
56914 +{
56915 + struct path path, currentroot;
56916 + int ret = 0;
56917 +
56918 + path.dentry = (struct dentry *)u_dentry;
56919 + path.mnt = (struct vfsmount *)u_mnt;
56920 + get_fs_root(current->fs, &currentroot);
56921 + if (path_is_under(&path, &currentroot))
56922 + ret = 1;
56923 + path_put(&currentroot);
56924 +
56925 + return ret;
56926 +}
56927 +#endif
56928 +
56929 +int
56930 +gr_chroot_fchdir(struct dentry *u_dentry, struct vfsmount *u_mnt)
56931 +{
56932 +#ifdef CONFIG_GRKERNSEC_CHROOT_FCHDIR
56933 + if (!grsec_enable_chroot_fchdir)
56934 + return 1;
56935 +
56936 + if (!proc_is_chrooted(current))
56937 + return 1;
56938 + else if (!gr_is_outside_chroot(u_dentry, u_mnt)) {
56939 + gr_log_fs_generic(GR_DONT_AUDIT, GR_CHROOT_FCHDIR_MSG, u_dentry, u_mnt);
56940 + return 0;
56941 + }
56942 +#endif
56943 + return 1;
56944 +}
56945 +
56946 +int
56947 +gr_chroot_shmat(const pid_t shm_cprid, const pid_t shm_lapid,
56948 + const time_t shm_createtime)
56949 +{
56950 +#ifdef CONFIG_GRKERNSEC_CHROOT_SHMAT
56951 + struct task_struct *p;
56952 + time_t starttime;
56953 +
56954 + if (unlikely(!grsec_enable_chroot_shmat))
56955 + return 1;
56956 +
56957 + if (likely(!proc_is_chrooted(current)))
56958 + return 1;
56959 +
56960 + rcu_read_lock();
56961 + read_lock(&tasklist_lock);
56962 +
56963 + if ((p = find_task_by_vpid_unrestricted(shm_cprid))) {
56964 + starttime = p->start_time.tv_sec;
56965 + if (time_before_eq((unsigned long)starttime, (unsigned long)shm_createtime)) {
56966 + if (have_same_root(current, p)) {
56967 + goto allow;
56968 + } else {
56969 + read_unlock(&tasklist_lock);
56970 + rcu_read_unlock();
56971 + gr_log_noargs(GR_DONT_AUDIT, GR_SHMAT_CHROOT_MSG);
56972 + return 0;
56973 + }
56974 + }
56975 + /* creator exited, pid reuse, fall through to next check */
56976 + }
56977 + if ((p = find_task_by_vpid_unrestricted(shm_lapid))) {
56978 + if (unlikely(!have_same_root(current, p))) {
56979 + read_unlock(&tasklist_lock);
56980 + rcu_read_unlock();
56981 + gr_log_noargs(GR_DONT_AUDIT, GR_SHMAT_CHROOT_MSG);
56982 + return 0;
56983 + }
56984 + }
56985 +
56986 +allow:
56987 + read_unlock(&tasklist_lock);
56988 + rcu_read_unlock();
56989 +#endif
56990 + return 1;
56991 +}
56992 +
56993 +void
56994 +gr_log_chroot_exec(const struct dentry *dentry, const struct vfsmount *mnt)
56995 +{
56996 +#ifdef CONFIG_GRKERNSEC_CHROOT_EXECLOG
56997 + if (grsec_enable_chroot_execlog && proc_is_chrooted(current))
56998 + gr_log_fs_generic(GR_DO_AUDIT, GR_EXEC_CHROOT_MSG, dentry, mnt);
56999 +#endif
57000 + return;
57001 +}
57002 +
57003 +int
57004 +gr_handle_chroot_mknod(const struct dentry *dentry,
57005 + const struct vfsmount *mnt, const int mode)
57006 +{
57007 +#ifdef CONFIG_GRKERNSEC_CHROOT_MKNOD
57008 + if (grsec_enable_chroot_mknod && !S_ISFIFO(mode) && !S_ISREG(mode) &&
57009 + proc_is_chrooted(current)) {
57010 + gr_log_fs_generic(GR_DONT_AUDIT, GR_MKNOD_CHROOT_MSG, dentry, mnt);
57011 + return -EPERM;
57012 + }
57013 +#endif
57014 + return 0;
57015 +}
57016 +
57017 +int
57018 +gr_handle_chroot_mount(const struct dentry *dentry,
57019 + const struct vfsmount *mnt, const char *dev_name)
57020 +{
57021 +#ifdef CONFIG_GRKERNSEC_CHROOT_MOUNT
57022 + if (grsec_enable_chroot_mount && proc_is_chrooted(current)) {
57023 + gr_log_str_fs(GR_DONT_AUDIT, GR_MOUNT_CHROOT_MSG, dev_name ? dev_name : "none", dentry, mnt);
57024 + return -EPERM;
57025 + }
57026 +#endif
57027 + return 0;
57028 +}
57029 +
57030 +int
57031 +gr_handle_chroot_pivot(void)
57032 +{
57033 +#ifdef CONFIG_GRKERNSEC_CHROOT_PIVOT
57034 + if (grsec_enable_chroot_pivot && proc_is_chrooted(current)) {
57035 + gr_log_noargs(GR_DONT_AUDIT, GR_PIVOT_CHROOT_MSG);
57036 + return -EPERM;
57037 + }
57038 +#endif
57039 + return 0;
57040 +}
57041 +
57042 +int
57043 +gr_handle_chroot_chroot(const struct dentry *dentry, const struct vfsmount *mnt)
57044 +{
57045 +#ifdef CONFIG_GRKERNSEC_CHROOT_DOUBLE
57046 + if (grsec_enable_chroot_double && proc_is_chrooted(current) &&
57047 + !gr_is_outside_chroot(dentry, mnt)) {
57048 + gr_log_fs_generic(GR_DONT_AUDIT, GR_CHROOT_CHROOT_MSG, dentry, mnt);
57049 + return -EPERM;
57050 + }
57051 +#endif
57052 + return 0;
57053 +}
57054 +
57055 +extern const char *captab_log[];
57056 +extern int captab_log_entries;
57057 +
57058 +int
57059 +gr_task_chroot_is_capable(const struct task_struct *task, const struct cred *cred, const int cap)
57060 +{
57061 +#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS
57062 + if (grsec_enable_chroot_caps && proc_is_chrooted(task)) {
57063 + kernel_cap_t chroot_caps = GR_CHROOT_CAPS;
57064 + if (cap_raised(chroot_caps, cap)) {
57065 + if (cap_raised(cred->cap_effective, cap) && cap < captab_log_entries) {
57066 + gr_log_cap(GR_DONT_AUDIT, GR_CAP_CHROOT_MSG, task, captab_log[cap]);
57067 + }
57068 + return 0;
57069 + }
57070 + }
57071 +#endif
57072 + return 1;
57073 +}
57074 +
57075 +int
57076 +gr_chroot_is_capable(const int cap)
57077 +{
57078 +#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS
57079 + return gr_task_chroot_is_capable(current, current_cred(), cap);
57080 +#endif
57081 + return 1;
57082 +}
57083 +
57084 +int
57085 +gr_task_chroot_is_capable_nolog(const struct task_struct *task, const int cap)
57086 +{
57087 +#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS
57088 + if (grsec_enable_chroot_caps && proc_is_chrooted(task)) {
57089 + kernel_cap_t chroot_caps = GR_CHROOT_CAPS;
57090 + if (cap_raised(chroot_caps, cap)) {
57091 + return 0;
57092 + }
57093 + }
57094 +#endif
57095 + return 1;
57096 +}
57097 +
57098 +int
57099 +gr_chroot_is_capable_nolog(const int cap)
57100 +{
57101 +#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS
57102 + return gr_task_chroot_is_capable_nolog(current, cap);
57103 +#endif
57104 + return 1;
57105 +}
57106 +
57107 +int
57108 +gr_handle_chroot_sysctl(const int op)
57109 +{
57110 +#ifdef CONFIG_GRKERNSEC_CHROOT_SYSCTL
57111 + if (grsec_enable_chroot_sysctl && (op & MAY_WRITE) &&
57112 + proc_is_chrooted(current))
57113 + return -EACCES;
57114 +#endif
57115 + return 0;
57116 +}
57117 +
57118 +void
57119 +gr_handle_chroot_chdir(struct path *path)
57120 +{
57121 +#ifdef CONFIG_GRKERNSEC_CHROOT_CHDIR
57122 + if (grsec_enable_chroot_chdir)
57123 + set_fs_pwd(current->fs, path);
57124 +#endif
57125 + return;
57126 +}
57127 +
57128 +int
57129 +gr_handle_chroot_chmod(const struct dentry *dentry,
57130 + const struct vfsmount *mnt, const int mode)
57131 +{
57132 +#ifdef CONFIG_GRKERNSEC_CHROOT_CHMOD
57133 + /* allow chmod +s on directories, but not files */
57134 + if (grsec_enable_chroot_chmod && !S_ISDIR(dentry->d_inode->i_mode) &&
57135 + ((mode & S_ISUID) || ((mode & (S_ISGID | S_IXGRP)) == (S_ISGID | S_IXGRP))) &&
57136 + proc_is_chrooted(current)) {
57137 + gr_log_fs_generic(GR_DONT_AUDIT, GR_CHMOD_CHROOT_MSG, dentry, mnt);
57138 + return -EPERM;
57139 + }
57140 +#endif
57141 + return 0;
57142 +}
57143 diff --git a/grsecurity/grsec_disabled.c b/grsecurity/grsec_disabled.c
57144 new file mode 100644
57145 index 0000000..213ad8b
57146 --- /dev/null
57147 +++ b/grsecurity/grsec_disabled.c
57148 @@ -0,0 +1,437 @@
57149 +#include <linux/kernel.h>
57150 +#include <linux/module.h>
57151 +#include <linux/sched.h>
57152 +#include <linux/file.h>
57153 +#include <linux/fs.h>
57154 +#include <linux/kdev_t.h>
57155 +#include <linux/net.h>
57156 +#include <linux/in.h>
57157 +#include <linux/ip.h>
57158 +#include <linux/skbuff.h>
57159 +#include <linux/sysctl.h>
57160 +
57161 +#ifdef CONFIG_PAX_HAVE_ACL_FLAGS
57162 +void
57163 +pax_set_initial_flags(struct linux_binprm *bprm)
57164 +{
57165 + return;
57166 +}
57167 +#endif
57168 +
57169 +#ifdef CONFIG_SYSCTL
57170 +__u32
57171 +gr_handle_sysctl(const struct ctl_table * table, const int op)
57172 +{
57173 + return 0;
57174 +}
57175 +#endif
57176 +
57177 +#ifdef CONFIG_TASKSTATS
57178 +int gr_is_taskstats_denied(int pid)
57179 +{
57180 + return 0;
57181 +}
57182 +#endif
57183 +
57184 +int
57185 +gr_acl_is_enabled(void)
57186 +{
57187 + return 0;
57188 +}
57189 +
57190 +void
57191 +gr_handle_proc_create(const struct dentry *dentry, const struct inode *inode)
57192 +{
57193 + return;
57194 +}
57195 +
57196 +int
57197 +gr_handle_rawio(const struct inode *inode)
57198 +{
57199 + return 0;
57200 +}
57201 +
57202 +void
57203 +gr_acl_handle_psacct(struct task_struct *task, const long code)
57204 +{
57205 + return;
57206 +}
57207 +
57208 +int
57209 +gr_handle_ptrace(struct task_struct *task, const long request)
57210 +{
57211 + return 0;
57212 +}
57213 +
57214 +int
57215 +gr_handle_proc_ptrace(struct task_struct *task)
57216 +{
57217 + return 0;
57218 +}
57219 +
57220 +void
57221 +gr_learn_resource(const struct task_struct *task,
57222 + const int res, const unsigned long wanted, const int gt)
57223 +{
57224 + return;
57225 +}
57226 +
57227 +int
57228 +gr_set_acls(const int type)
57229 +{
57230 + return 0;
57231 +}
57232 +
57233 +int
57234 +gr_check_hidden_task(const struct task_struct *tsk)
57235 +{
57236 + return 0;
57237 +}
57238 +
57239 +int
57240 +gr_check_protected_task(const struct task_struct *task)
57241 +{
57242 + return 0;
57243 +}
57244 +
57245 +int
57246 +gr_check_protected_task_fowner(struct pid *pid, enum pid_type type)
57247 +{
57248 + return 0;
57249 +}
57250 +
57251 +void
57252 +gr_copy_label(struct task_struct *tsk)
57253 +{
57254 + return;
57255 +}
57256 +
57257 +void
57258 +gr_set_pax_flags(struct task_struct *task)
57259 +{
57260 + return;
57261 +}
57262 +
57263 +int
57264 +gr_set_proc_label(const struct dentry *dentry, const struct vfsmount *mnt,
57265 + const int unsafe_share)
57266 +{
57267 + return 0;
57268 +}
57269 +
57270 +void
57271 +gr_handle_delete(const ino_t ino, const dev_t dev)
57272 +{
57273 + return;
57274 +}
57275 +
57276 +void
57277 +gr_handle_create(const struct dentry *dentry, const struct vfsmount *mnt)
57278 +{
57279 + return;
57280 +}
57281 +
57282 +void
57283 +gr_handle_crash(struct task_struct *task, const int sig)
57284 +{
57285 + return;
57286 +}
57287 +
57288 +int
57289 +gr_check_crash_exec(const struct file *filp)
57290 +{
57291 + return 0;
57292 +}
57293 +
57294 +int
57295 +gr_check_crash_uid(const uid_t uid)
57296 +{
57297 + return 0;
57298 +}
57299 +
57300 +void
57301 +gr_handle_rename(struct inode *old_dir, struct inode *new_dir,
57302 + struct dentry *old_dentry,
57303 + struct dentry *new_dentry,
57304 + struct vfsmount *mnt, const __u8 replace)
57305 +{
57306 + return;
57307 +}
57308 +
57309 +int
57310 +gr_search_socket(const int family, const int type, const int protocol)
57311 +{
57312 + return 1;
57313 +}
57314 +
57315 +int
57316 +gr_search_connectbind(const int mode, const struct socket *sock,
57317 + const struct sockaddr_in *addr)
57318 +{
57319 + return 0;
57320 +}
57321 +
57322 +void
57323 +gr_handle_alertkill(struct task_struct *task)
57324 +{
57325 + return;
57326 +}
57327 +
57328 +__u32
57329 +gr_acl_handle_execve(const struct dentry * dentry, const struct vfsmount * mnt)
57330 +{
57331 + return 1;
57332 +}
57333 +
57334 +__u32
57335 +gr_acl_handle_hidden_file(const struct dentry * dentry,
57336 + const struct vfsmount * mnt)
57337 +{
57338 + return 1;
57339 +}
57340 +
57341 +__u32
57342 +gr_acl_handle_open(const struct dentry * dentry, const struct vfsmount * mnt,
57343 + int acc_mode)
57344 +{
57345 + return 1;
57346 +}
57347 +
57348 +__u32
57349 +gr_acl_handle_rmdir(const struct dentry * dentry, const struct vfsmount * mnt)
57350 +{
57351 + return 1;
57352 +}
57353 +
57354 +__u32
57355 +gr_acl_handle_unlink(const struct dentry * dentry, const struct vfsmount * mnt)
57356 +{
57357 + return 1;
57358 +}
57359 +
57360 +int
57361 +gr_acl_handle_mmap(const struct file *file, const unsigned long prot,
57362 + unsigned int *vm_flags)
57363 +{
57364 + return 1;
57365 +}
57366 +
57367 +__u32
57368 +gr_acl_handle_truncate(const struct dentry * dentry,
57369 + const struct vfsmount * mnt)
57370 +{
57371 + return 1;
57372 +}
57373 +
57374 +__u32
57375 +gr_acl_handle_utime(const struct dentry * dentry, const struct vfsmount * mnt)
57376 +{
57377 + return 1;
57378 +}
57379 +
57380 +__u32
57381 +gr_acl_handle_access(const struct dentry * dentry,
57382 + const struct vfsmount * mnt, const int fmode)
57383 +{
57384 + return 1;
57385 +}
57386 +
57387 +__u32
57388 +gr_acl_handle_chmod(const struct dentry * dentry, const struct vfsmount * mnt,
57389 + umode_t *mode)
57390 +{
57391 + return 1;
57392 +}
57393 +
57394 +__u32
57395 +gr_acl_handle_chown(const struct dentry * dentry, const struct vfsmount * mnt)
57396 +{
57397 + return 1;
57398 +}
57399 +
57400 +__u32
57401 +gr_acl_handle_setxattr(const struct dentry * dentry, const struct vfsmount * mnt)
57402 +{
57403 + return 1;
57404 +}
57405 +
57406 +void
57407 +grsecurity_init(void)
57408 +{
57409 + return;
57410 +}
57411 +
57412 +umode_t gr_acl_umask(void)
57413 +{
57414 + return 0;
57415 +}
57416 +
57417 +__u32
57418 +gr_acl_handle_mknod(const struct dentry * new_dentry,
57419 + const struct dentry * parent_dentry,
57420 + const struct vfsmount * parent_mnt,
57421 + const int mode)
57422 +{
57423 + return 1;
57424 +}
57425 +
57426 +__u32
57427 +gr_acl_handle_mkdir(const struct dentry * new_dentry,
57428 + const struct dentry * parent_dentry,
57429 + const struct vfsmount * parent_mnt)
57430 +{
57431 + return 1;
57432 +}
57433 +
57434 +__u32
57435 +gr_acl_handle_symlink(const struct dentry * new_dentry,
57436 + const struct dentry * parent_dentry,
57437 + const struct vfsmount * parent_mnt, const char *from)
57438 +{
57439 + return 1;
57440 +}
57441 +
57442 +__u32
57443 +gr_acl_handle_link(const struct dentry * new_dentry,
57444 + const struct dentry * parent_dentry,
57445 + const struct vfsmount * parent_mnt,
57446 + const struct dentry * old_dentry,
57447 + const struct vfsmount * old_mnt, const char *to)
57448 +{
57449 + return 1;
57450 +}
57451 +
57452 +int
57453 +gr_acl_handle_rename(const struct dentry *new_dentry,
57454 + const struct dentry *parent_dentry,
57455 + const struct vfsmount *parent_mnt,
57456 + const struct dentry *old_dentry,
57457 + const struct inode *old_parent_inode,
57458 + const struct vfsmount *old_mnt, const char *newname)
57459 +{
57460 + return 0;
57461 +}
57462 +
57463 +int
57464 +gr_acl_handle_filldir(const struct file *file, const char *name,
57465 + const int namelen, const ino_t ino)
57466 +{
57467 + return 1;
57468 +}
57469 +
57470 +int
57471 +gr_handle_shmat(const pid_t shm_cprid, const pid_t shm_lapid,
57472 + const time_t shm_createtime, const uid_t cuid, const int shmid)
57473 +{
57474 + return 1;
57475 +}
57476 +
57477 +int
57478 +gr_search_bind(const struct socket *sock, const struct sockaddr_in *addr)
57479 +{
57480 + return 0;
57481 +}
57482 +
57483 +int
57484 +gr_search_accept(const struct socket *sock)
57485 +{
57486 + return 0;
57487 +}
57488 +
57489 +int
57490 +gr_search_listen(const struct socket *sock)
57491 +{
57492 + return 0;
57493 +}
57494 +
57495 +int
57496 +gr_search_connect(const struct socket *sock, const struct sockaddr_in *addr)
57497 +{
57498 + return 0;
57499 +}
57500 +
57501 +__u32
57502 +gr_acl_handle_unix(const struct dentry * dentry, const struct vfsmount * mnt)
57503 +{
57504 + return 1;
57505 +}
57506 +
57507 +__u32
57508 +gr_acl_handle_creat(const struct dentry * dentry,
57509 + const struct dentry * p_dentry,
57510 + const struct vfsmount * p_mnt, int open_flags, int acc_mode,
57511 + const int imode)
57512 +{
57513 + return 1;
57514 +}
57515 +
57516 +void
57517 +gr_acl_handle_exit(void)
57518 +{
57519 + return;
57520 +}
57521 +
57522 +int
57523 +gr_acl_handle_mprotect(const struct file *file, const unsigned long prot)
57524 +{
57525 + return 1;
57526 +}
57527 +
57528 +void
57529 +gr_set_role_label(const uid_t uid, const gid_t gid)
57530 +{
57531 + return;
57532 +}
57533 +
57534 +int
57535 +gr_acl_handle_procpidmem(const struct task_struct *task)
57536 +{
57537 + return 0;
57538 +}
57539 +
57540 +int
57541 +gr_search_udp_recvmsg(const struct sock *sk, const struct sk_buff *skb)
57542 +{
57543 + return 0;
57544 +}
57545 +
57546 +int
57547 +gr_search_udp_sendmsg(const struct sock *sk, const struct sockaddr_in *addr)
57548 +{
57549 + return 0;
57550 +}
57551 +
57552 +void
57553 +gr_set_kernel_label(struct task_struct *task)
57554 +{
57555 + return;
57556 +}
57557 +
57558 +int
57559 +gr_check_user_change(int real, int effective, int fs)
57560 +{
57561 + return 0;
57562 +}
57563 +
57564 +int
57565 +gr_check_group_change(int real, int effective, int fs)
57566 +{
57567 + return 0;
57568 +}
57569 +
57570 +int gr_acl_enable_at_secure(void)
57571 +{
57572 + return 0;
57573 +}
57574 +
57575 +dev_t gr_get_dev_from_dentry(struct dentry *dentry)
57576 +{
57577 + return dentry->d_inode->i_sb->s_dev;
57578 +}
57579 +
57580 +EXPORT_SYMBOL(gr_learn_resource);
57581 +EXPORT_SYMBOL(gr_set_kernel_label);
57582 +#ifdef CONFIG_SECURITY
57583 +EXPORT_SYMBOL(gr_check_user_change);
57584 +EXPORT_SYMBOL(gr_check_group_change);
57585 +#endif
57586 diff --git a/grsecurity/grsec_exec.c b/grsecurity/grsec_exec.c
57587 new file mode 100644
57588 index 0000000..abfa971
57589 --- /dev/null
57590 +++ b/grsecurity/grsec_exec.c
57591 @@ -0,0 +1,174 @@
57592 +#include <linux/kernel.h>
57593 +#include <linux/sched.h>
57594 +#include <linux/file.h>
57595 +#include <linux/binfmts.h>
57596 +#include <linux/fs.h>
57597 +#include <linux/types.h>
57598 +#include <linux/grdefs.h>
57599 +#include <linux/grsecurity.h>
57600 +#include <linux/grinternal.h>
57601 +#include <linux/capability.h>
57602 +#include <linux/module.h>
57603 +
57604 +#include <asm/uaccess.h>
57605 +
57606 +#ifdef CONFIG_GRKERNSEC_EXECLOG
57607 +static char gr_exec_arg_buf[132];
57608 +static DEFINE_MUTEX(gr_exec_arg_mutex);
57609 +#endif
57610 +
57611 +extern const char __user *get_user_arg_ptr(struct user_arg_ptr argv, int nr);
57612 +
57613 +void
57614 +gr_handle_exec_args(struct linux_binprm *bprm, struct user_arg_ptr argv)
57615 +{
57616 +#ifdef CONFIG_GRKERNSEC_EXECLOG
57617 + char *grarg = gr_exec_arg_buf;
57618 + unsigned int i, x, execlen = 0;
57619 + char c;
57620 +
57621 + if (!((grsec_enable_execlog && grsec_enable_group &&
57622 + in_group_p(grsec_audit_gid))
57623 + || (grsec_enable_execlog && !grsec_enable_group)))
57624 + return;
57625 +
57626 + mutex_lock(&gr_exec_arg_mutex);
57627 + memset(grarg, 0, sizeof(gr_exec_arg_buf));
57628 +
57629 + for (i = 0; i < bprm->argc && execlen < 128; i++) {
57630 + const char __user *p;
57631 + unsigned int len;
57632 +
57633 + p = get_user_arg_ptr(argv, i);
57634 + if (IS_ERR(p))
57635 + goto log;
57636 +
57637 + len = strnlen_user(p, 128 - execlen);
57638 + if (len > 128 - execlen)
57639 + len = 128 - execlen;
57640 + else if (len > 0)
57641 + len--;
57642 + if (copy_from_user(grarg + execlen, p, len))
57643 + goto log;
57644 +
57645 + /* rewrite unprintable characters */
57646 + for (x = 0; x < len; x++) {
57647 + c = *(grarg + execlen + x);
57648 + if (c < 32 || c > 126)
57649 + *(grarg + execlen + x) = ' ';
57650 + }
57651 +
57652 + execlen += len;
57653 + *(grarg + execlen) = ' ';
57654 + *(grarg + execlen + 1) = '\0';
57655 + execlen++;
57656 + }
57657 +
57658 + log:
57659 + gr_log_fs_str(GR_DO_AUDIT, GR_EXEC_AUDIT_MSG, bprm->file->f_path.dentry,
57660 + bprm->file->f_path.mnt, grarg);
57661 + mutex_unlock(&gr_exec_arg_mutex);
57662 +#endif
57663 + return;
57664 +}
57665 +
57666 +#ifdef CONFIG_GRKERNSEC
57667 +extern int gr_acl_is_capable(const int cap);
57668 +extern int gr_acl_is_capable_nolog(const int cap);
57669 +extern int gr_task_acl_is_capable(const struct task_struct *task, const struct cred *cred, const int cap);
57670 +extern int gr_task_acl_is_capable_nolog(const struct task_struct *task, const int cap);
57671 +extern int gr_chroot_is_capable(const int cap);
57672 +extern int gr_chroot_is_capable_nolog(const int cap);
57673 +extern int gr_task_chroot_is_capable(const struct task_struct *task, const struct cred *cred, const int cap);
57674 +extern int gr_task_chroot_is_capable_nolog(const struct task_struct *task, const int cap);
57675 +#endif
57676 +
57677 +const char *captab_log[] = {
57678 + "CAP_CHOWN",
57679 + "CAP_DAC_OVERRIDE",
57680 + "CAP_DAC_READ_SEARCH",
57681 + "CAP_FOWNER",
57682 + "CAP_FSETID",
57683 + "CAP_KILL",
57684 + "CAP_SETGID",
57685 + "CAP_SETUID",
57686 + "CAP_SETPCAP",
57687 + "CAP_LINUX_IMMUTABLE",
57688 + "CAP_NET_BIND_SERVICE",
57689 + "CAP_NET_BROADCAST",
57690 + "CAP_NET_ADMIN",
57691 + "CAP_NET_RAW",
57692 + "CAP_IPC_LOCK",
57693 + "CAP_IPC_OWNER",
57694 + "CAP_SYS_MODULE",
57695 + "CAP_SYS_RAWIO",
57696 + "CAP_SYS_CHROOT",
57697 + "CAP_SYS_PTRACE",
57698 + "CAP_SYS_PACCT",
57699 + "CAP_SYS_ADMIN",
57700 + "CAP_SYS_BOOT",
57701 + "CAP_SYS_NICE",
57702 + "CAP_SYS_RESOURCE",
57703 + "CAP_SYS_TIME",
57704 + "CAP_SYS_TTY_CONFIG",
57705 + "CAP_MKNOD",
57706 + "CAP_LEASE",
57707 + "CAP_AUDIT_WRITE",
57708 + "CAP_AUDIT_CONTROL",
57709 + "CAP_SETFCAP",
57710 + "CAP_MAC_OVERRIDE",
57711 + "CAP_MAC_ADMIN",
57712 + "CAP_SYSLOG",
57713 + "CAP_WAKE_ALARM"
57714 +};
57715 +
57716 +int captab_log_entries = sizeof(captab_log)/sizeof(captab_log[0]);
57717 +
57718 +int gr_is_capable(const int cap)
57719 +{
57720 +#ifdef CONFIG_GRKERNSEC
57721 + if (gr_acl_is_capable(cap) && gr_chroot_is_capable(cap))
57722 + return 1;
57723 + return 0;
57724 +#else
57725 + return 1;
57726 +#endif
57727 +}
57728 +
57729 +int gr_task_is_capable(const struct task_struct *task, const struct cred *cred, const int cap)
57730 +{
57731 +#ifdef CONFIG_GRKERNSEC
57732 + if (gr_task_acl_is_capable(task, cred, cap) && gr_task_chroot_is_capable(task, cred, cap))
57733 + return 1;
57734 + return 0;
57735 +#else
57736 + return 1;
57737 +#endif
57738 +}
57739 +
57740 +int gr_is_capable_nolog(const int cap)
57741 +{
57742 +#ifdef CONFIG_GRKERNSEC
57743 + if (gr_acl_is_capable_nolog(cap) && gr_chroot_is_capable_nolog(cap))
57744 + return 1;
57745 + return 0;
57746 +#else
57747 + return 1;
57748 +#endif
57749 +}
57750 +
57751 +int gr_task_is_capable_nolog(const struct task_struct *task, const int cap)
57752 +{
57753 +#ifdef CONFIG_GRKERNSEC
57754 + if (gr_task_acl_is_capable_nolog(task, cap) && gr_task_chroot_is_capable_nolog(task, cap))
57755 + return 1;
57756 + return 0;
57757 +#else
57758 + return 1;
57759 +#endif
57760 +}
57761 +
57762 +EXPORT_SYMBOL(gr_is_capable);
57763 +EXPORT_SYMBOL(gr_is_capable_nolog);
57764 +EXPORT_SYMBOL(gr_task_is_capable);
57765 +EXPORT_SYMBOL(gr_task_is_capable_nolog);
57766 diff --git a/grsecurity/grsec_fifo.c b/grsecurity/grsec_fifo.c
57767 new file mode 100644
57768 index 0000000..d3ee748
57769 --- /dev/null
57770 +++ b/grsecurity/grsec_fifo.c
57771 @@ -0,0 +1,24 @@
57772 +#include <linux/kernel.h>
57773 +#include <linux/sched.h>
57774 +#include <linux/fs.h>
57775 +#include <linux/file.h>
57776 +#include <linux/grinternal.h>
57777 +
57778 +int
57779 +gr_handle_fifo(const struct dentry *dentry, const struct vfsmount *mnt,
57780 + const struct dentry *dir, const int flag, const int acc_mode)
57781 +{
57782 +#ifdef CONFIG_GRKERNSEC_FIFO
57783 + const struct cred *cred = current_cred();
57784 +
57785 + if (grsec_enable_fifo && S_ISFIFO(dentry->d_inode->i_mode) &&
57786 + !(flag & O_EXCL) && (dir->d_inode->i_mode & S_ISVTX) &&
57787 + (dentry->d_inode->i_uid != dir->d_inode->i_uid) &&
57788 + (cred->fsuid != dentry->d_inode->i_uid)) {
57789 + if (!inode_permission(dentry->d_inode, acc_mode))
57790 + gr_log_fs_int2(GR_DONT_AUDIT, GR_FIFO_MSG, dentry, mnt, dentry->d_inode->i_uid, dentry->d_inode->i_gid);
57791 + return -EACCES;
57792 + }
57793 +#endif
57794 + return 0;
57795 +}
57796 diff --git a/grsecurity/grsec_fork.c b/grsecurity/grsec_fork.c
57797 new file mode 100644
57798 index 0000000..8ca18bf
57799 --- /dev/null
57800 +++ b/grsecurity/grsec_fork.c
57801 @@ -0,0 +1,23 @@
57802 +#include <linux/kernel.h>
57803 +#include <linux/sched.h>
57804 +#include <linux/grsecurity.h>
57805 +#include <linux/grinternal.h>
57806 +#include <linux/errno.h>
57807 +
57808 +void
57809 +gr_log_forkfail(const int retval)
57810 +{
57811 +#ifdef CONFIG_GRKERNSEC_FORKFAIL
57812 + if (grsec_enable_forkfail && (retval == -EAGAIN || retval == -ENOMEM)) {
57813 + switch (retval) {
57814 + case -EAGAIN:
57815 + gr_log_str(GR_DONT_AUDIT, GR_FAILFORK_MSG, "EAGAIN");
57816 + break;
57817 + case -ENOMEM:
57818 + gr_log_str(GR_DONT_AUDIT, GR_FAILFORK_MSG, "ENOMEM");
57819 + break;
57820 + }
57821 + }
57822 +#endif
57823 + return;
57824 +}
57825 diff --git a/grsecurity/grsec_init.c b/grsecurity/grsec_init.c
57826 new file mode 100644
57827 index 0000000..05a6015
57828 --- /dev/null
57829 +++ b/grsecurity/grsec_init.c
57830 @@ -0,0 +1,283 @@
57831 +#include <linux/kernel.h>
57832 +#include <linux/sched.h>
57833 +#include <linux/mm.h>
57834 +#include <linux/gracl.h>
57835 +#include <linux/slab.h>
57836 +#include <linux/vmalloc.h>
57837 +#include <linux/percpu.h>
57838 +#include <linux/module.h>
57839 +
57840 +int grsec_enable_ptrace_readexec;
57841 +int grsec_enable_setxid;
57842 +int grsec_enable_symlinkown;
57843 +int grsec_symlinkown_gid;
57844 +int grsec_enable_brute;
57845 +int grsec_enable_link;
57846 +int grsec_enable_dmesg;
57847 +int grsec_enable_harden_ptrace;
57848 +int grsec_enable_fifo;
57849 +int grsec_enable_execlog;
57850 +int grsec_enable_signal;
57851 +int grsec_enable_forkfail;
57852 +int grsec_enable_audit_ptrace;
57853 +int grsec_enable_time;
57854 +int grsec_enable_audit_textrel;
57855 +int grsec_enable_group;
57856 +int grsec_audit_gid;
57857 +int grsec_enable_chdir;
57858 +int grsec_enable_mount;
57859 +int grsec_enable_rofs;
57860 +int grsec_enable_chroot_findtask;
57861 +int grsec_enable_chroot_mount;
57862 +int grsec_enable_chroot_shmat;
57863 +int grsec_enable_chroot_fchdir;
57864 +int grsec_enable_chroot_double;
57865 +int grsec_enable_chroot_pivot;
57866 +int grsec_enable_chroot_chdir;
57867 +int grsec_enable_chroot_chmod;
57868 +int grsec_enable_chroot_mknod;
57869 +int grsec_enable_chroot_nice;
57870 +int grsec_enable_chroot_execlog;
57871 +int grsec_enable_chroot_caps;
57872 +int grsec_enable_chroot_sysctl;
57873 +int grsec_enable_chroot_unix;
57874 +int grsec_enable_tpe;
57875 +int grsec_tpe_gid;
57876 +int grsec_enable_blackhole;
57877 +#ifdef CONFIG_IPV6_MODULE
57878 +EXPORT_SYMBOL(grsec_enable_blackhole);
57879 +#endif
57880 +int grsec_lastack_retries;
57881 +int grsec_enable_tpe_all;
57882 +int grsec_enable_tpe_invert;
57883 +int grsec_enable_socket_all;
57884 +int grsec_socket_all_gid;
57885 +int grsec_enable_socket_client;
57886 +int grsec_socket_client_gid;
57887 +int grsec_enable_socket_server;
57888 +int grsec_socket_server_gid;
57889 +int grsec_resource_logging;
57890 +int grsec_disable_privio;
57891 +int grsec_enable_log_rwxmaps;
57892 +int grsec_lock;
57893 +
57894 +DEFINE_SPINLOCK(grsec_alert_lock);
57895 +unsigned long grsec_alert_wtime = 0;
57896 +unsigned long grsec_alert_fyet = 0;
57897 +
57898 +DEFINE_SPINLOCK(grsec_audit_lock);
57899 +
57900 +DEFINE_RWLOCK(grsec_exec_file_lock);
57901 +
57902 +char *gr_shared_page[4];
57903 +
57904 +char *gr_alert_log_fmt;
57905 +char *gr_audit_log_fmt;
57906 +char *gr_alert_log_buf;
57907 +char *gr_audit_log_buf;
57908 +
57909 +extern struct gr_arg *gr_usermode;
57910 +extern unsigned char *gr_system_salt;
57911 +extern unsigned char *gr_system_sum;
57912 +
57913 +void __init
57914 +grsecurity_init(void)
57915 +{
57916 + int j;
57917 + /* create the per-cpu shared pages */
57918 +
57919 +#ifdef CONFIG_X86
57920 + memset((char *)(0x41a + PAGE_OFFSET), 0, 36);
57921 +#endif
57922 +
57923 + for (j = 0; j < 4; j++) {
57924 + gr_shared_page[j] = (char *)__alloc_percpu(PAGE_SIZE, __alignof__(unsigned long long));
57925 + if (gr_shared_page[j] == NULL) {
57926 + panic("Unable to allocate grsecurity shared page");
57927 + return;
57928 + }
57929 + }
57930 +
57931 + /* allocate log buffers */
57932 + gr_alert_log_fmt = kmalloc(512, GFP_KERNEL);
57933 + if (!gr_alert_log_fmt) {
57934 + panic("Unable to allocate grsecurity alert log format buffer");
57935 + return;
57936 + }
57937 + gr_audit_log_fmt = kmalloc(512, GFP_KERNEL);
57938 + if (!gr_audit_log_fmt) {
57939 + panic("Unable to allocate grsecurity audit log format buffer");
57940 + return;
57941 + }
57942 + gr_alert_log_buf = (char *) get_zeroed_page(GFP_KERNEL);
57943 + if (!gr_alert_log_buf) {
57944 + panic("Unable to allocate grsecurity alert log buffer");
57945 + return;
57946 + }
57947 + gr_audit_log_buf = (char *) get_zeroed_page(GFP_KERNEL);
57948 + if (!gr_audit_log_buf) {
57949 + panic("Unable to allocate grsecurity audit log buffer");
57950 + return;
57951 + }
57952 +
57953 + /* allocate memory for authentication structure */
57954 + gr_usermode = kmalloc(sizeof(struct gr_arg), GFP_KERNEL);
57955 + gr_system_salt = kmalloc(GR_SALT_LEN, GFP_KERNEL);
57956 + gr_system_sum = kmalloc(GR_SHA_LEN, GFP_KERNEL);
57957 +
57958 + if (!gr_usermode || !gr_system_salt || !gr_system_sum) {
57959 + panic("Unable to allocate grsecurity authentication structure");
57960 + return;
57961 + }
57962 +
57963 +
57964 +#ifdef CONFIG_GRKERNSEC_IO
57965 +#if !defined(CONFIG_GRKERNSEC_SYSCTL_DISTRO)
57966 + grsec_disable_privio = 1;
57967 +#elif defined(CONFIG_GRKERNSEC_SYSCTL_ON)
57968 + grsec_disable_privio = 1;
57969 +#else
57970 + grsec_disable_privio = 0;
57971 +#endif
57972 +#endif
57973 +
57974 +#ifdef CONFIG_GRKERNSEC_TPE_INVERT
57975 + /* for backward compatibility, tpe_invert always defaults to on if
57976 + enabled in the kernel
57977 + */
57978 + grsec_enable_tpe_invert = 1;
57979 +#endif
57980 +
57981 +#if !defined(CONFIG_GRKERNSEC_SYSCTL) || defined(CONFIG_GRKERNSEC_SYSCTL_ON)
57982 +#ifndef CONFIG_GRKERNSEC_SYSCTL
57983 + grsec_lock = 1;
57984 +#endif
57985 +
57986 +#ifdef CONFIG_GRKERNSEC_AUDIT_TEXTREL
57987 + grsec_enable_audit_textrel = 1;
57988 +#endif
57989 +#ifdef CONFIG_GRKERNSEC_RWXMAP_LOG
57990 + grsec_enable_log_rwxmaps = 1;
57991 +#endif
57992 +#ifdef CONFIG_GRKERNSEC_AUDIT_GROUP
57993 + grsec_enable_group = 1;
57994 + grsec_audit_gid = CONFIG_GRKERNSEC_AUDIT_GID;
57995 +#endif
57996 +#ifdef CONFIG_GRKERNSEC_PTRACE_READEXEC
57997 + grsec_enable_ptrace_readexec = 1;
57998 +#endif
57999 +#ifdef CONFIG_GRKERNSEC_AUDIT_CHDIR
58000 + grsec_enable_chdir = 1;
58001 +#endif
58002 +#ifdef CONFIG_GRKERNSEC_HARDEN_PTRACE
58003 + grsec_enable_harden_ptrace = 1;
58004 +#endif
58005 +#ifdef CONFIG_GRKERNSEC_AUDIT_MOUNT
58006 + grsec_enable_mount = 1;
58007 +#endif
58008 +#ifdef CONFIG_GRKERNSEC_LINK
58009 + grsec_enable_link = 1;
58010 +#endif
58011 +#ifdef CONFIG_GRKERNSEC_BRUTE
58012 + grsec_enable_brute = 1;
58013 +#endif
58014 +#ifdef CONFIG_GRKERNSEC_DMESG
58015 + grsec_enable_dmesg = 1;
58016 +#endif
58017 +#ifdef CONFIG_GRKERNSEC_BLACKHOLE
58018 + grsec_enable_blackhole = 1;
58019 + grsec_lastack_retries = 4;
58020 +#endif
58021 +#ifdef CONFIG_GRKERNSEC_FIFO
58022 + grsec_enable_fifo = 1;
58023 +#endif
58024 +#ifdef CONFIG_GRKERNSEC_EXECLOG
58025 + grsec_enable_execlog = 1;
58026 +#endif
58027 +#ifdef CONFIG_GRKERNSEC_SETXID
58028 + grsec_enable_setxid = 1;
58029 +#endif
58030 +#ifdef CONFIG_GRKERNSEC_SIGNAL
58031 + grsec_enable_signal = 1;
58032 +#endif
58033 +#ifdef CONFIG_GRKERNSEC_FORKFAIL
58034 + grsec_enable_forkfail = 1;
58035 +#endif
58036 +#ifdef CONFIG_GRKERNSEC_TIME
58037 + grsec_enable_time = 1;
58038 +#endif
58039 +#ifdef CONFIG_GRKERNSEC_RESLOG
58040 + grsec_resource_logging = 1;
58041 +#endif
58042 +#ifdef CONFIG_GRKERNSEC_CHROOT_FINDTASK
58043 + grsec_enable_chroot_findtask = 1;
58044 +#endif
58045 +#ifdef CONFIG_GRKERNSEC_CHROOT_UNIX
58046 + grsec_enable_chroot_unix = 1;
58047 +#endif
58048 +#ifdef CONFIG_GRKERNSEC_CHROOT_MOUNT
58049 + grsec_enable_chroot_mount = 1;
58050 +#endif
58051 +#ifdef CONFIG_GRKERNSEC_CHROOT_FCHDIR
58052 + grsec_enable_chroot_fchdir = 1;
58053 +#endif
58054 +#ifdef CONFIG_GRKERNSEC_CHROOT_SHMAT
58055 + grsec_enable_chroot_shmat = 1;
58056 +#endif
58057 +#ifdef CONFIG_GRKERNSEC_AUDIT_PTRACE
58058 + grsec_enable_audit_ptrace = 1;
58059 +#endif
58060 +#ifdef CONFIG_GRKERNSEC_CHROOT_DOUBLE
58061 + grsec_enable_chroot_double = 1;
58062 +#endif
58063 +#ifdef CONFIG_GRKERNSEC_CHROOT_PIVOT
58064 + grsec_enable_chroot_pivot = 1;
58065 +#endif
58066 +#ifdef CONFIG_GRKERNSEC_CHROOT_CHDIR
58067 + grsec_enable_chroot_chdir = 1;
58068 +#endif
58069 +#ifdef CONFIG_GRKERNSEC_CHROOT_CHMOD
58070 + grsec_enable_chroot_chmod = 1;
58071 +#endif
58072 +#ifdef CONFIG_GRKERNSEC_CHROOT_MKNOD
58073 + grsec_enable_chroot_mknod = 1;
58074 +#endif
58075 +#ifdef CONFIG_GRKERNSEC_CHROOT_NICE
58076 + grsec_enable_chroot_nice = 1;
58077 +#endif
58078 +#ifdef CONFIG_GRKERNSEC_CHROOT_EXECLOG
58079 + grsec_enable_chroot_execlog = 1;
58080 +#endif
58081 +#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS
58082 + grsec_enable_chroot_caps = 1;
58083 +#endif
58084 +#ifdef CONFIG_GRKERNSEC_CHROOT_SYSCTL
58085 + grsec_enable_chroot_sysctl = 1;
58086 +#endif
58087 +#ifdef CONFIG_GRKERNSEC_SYMLINKOWN
58088 + grsec_enable_symlinkown = 1;
58089 + grsec_symlinkown_gid = CONFIG_GRKERNSEC_SYMLINKOWN_GID;
58090 +#endif
58091 +#ifdef CONFIG_GRKERNSEC_TPE
58092 + grsec_enable_tpe = 1;
58093 + grsec_tpe_gid = CONFIG_GRKERNSEC_TPE_GID;
58094 +#ifdef CONFIG_GRKERNSEC_TPE_ALL
58095 + grsec_enable_tpe_all = 1;
58096 +#endif
58097 +#endif
58098 +#ifdef CONFIG_GRKERNSEC_SOCKET_ALL
58099 + grsec_enable_socket_all = 1;
58100 + grsec_socket_all_gid = CONFIG_GRKERNSEC_SOCKET_ALL_GID;
58101 +#endif
58102 +#ifdef CONFIG_GRKERNSEC_SOCKET_CLIENT
58103 + grsec_enable_socket_client = 1;
58104 + grsec_socket_client_gid = CONFIG_GRKERNSEC_SOCKET_CLIENT_GID;
58105 +#endif
58106 +#ifdef CONFIG_GRKERNSEC_SOCKET_SERVER
58107 + grsec_enable_socket_server = 1;
58108 + grsec_socket_server_gid = CONFIG_GRKERNSEC_SOCKET_SERVER_GID;
58109 +#endif
58110 +#endif
58111 +
58112 + return;
58113 +}
58114 diff --git a/grsecurity/grsec_link.c b/grsecurity/grsec_link.c
58115 new file mode 100644
58116 index 0000000..589481f
58117 --- /dev/null
58118 +++ b/grsecurity/grsec_link.c
58119 @@ -0,0 +1,58 @@
58120 +#include <linux/kernel.h>
58121 +#include <linux/sched.h>
58122 +#include <linux/fs.h>
58123 +#include <linux/file.h>
58124 +#include <linux/grinternal.h>
58125 +
58126 +int gr_handle_symlink_owner(const struct path *link, const struct inode *target)
58127 +{
58128 +#ifdef CONFIG_GRKERNSEC_SYMLINKOWN
58129 + const struct inode *link_inode = link->dentry->d_inode;
58130 +
58131 + if (grsec_enable_symlinkown && in_group_p(grsec_symlinkown_gid) &&
58132 + /* ignore root-owned links, e.g. /proc/self */
58133 + !uid_eq(link_inode->i_uid, GLOBAL_ROOT_UID) && target &&
58134 + !uid_eq(link_inode->i_uid, target->i_uid)) {
58135 + gr_log_fs_int2(GR_DONT_AUDIT, GR_SYMLINKOWNER_MSG, link->dentry, link->mnt, link_inode->i_uid, target->i_uid);
58136 + return 1;
58137 + }
58138 +#endif
58139 + return 0;
58140 +}
58141 +
58142 +int
58143 +gr_handle_follow_link(const struct inode *parent,
58144 + const struct inode *inode,
58145 + const struct dentry *dentry, const struct vfsmount *mnt)
58146 +{
58147 +#ifdef CONFIG_GRKERNSEC_LINK
58148 + const struct cred *cred = current_cred();
58149 +
58150 + if (grsec_enable_link && S_ISLNK(inode->i_mode) &&
58151 + (parent->i_mode & S_ISVTX) && !uid_eq(parent->i_uid, inode->i_uid) &&
58152 + (parent->i_mode & S_IWOTH) && !uid_eq(cred->fsuid, inode->i_uid)) {
58153 + gr_log_fs_int2(GR_DONT_AUDIT, GR_SYMLINK_MSG, dentry, mnt, inode->i_uid, inode->i_gid);
58154 + return -EACCES;
58155 + }
58156 +#endif
58157 + return 0;
58158 +}
58159 +
58160 +int
58161 +gr_handle_hardlink(const struct dentry *dentry,
58162 + const struct vfsmount *mnt,
58163 + struct inode *inode, const int mode, const char *to)
58164 +{
58165 +#ifdef CONFIG_GRKERNSEC_LINK
58166 + const struct cred *cred = current_cred();
58167 +
58168 + if (grsec_enable_link && !uid_eq(cred->fsuid, inode->i_uid) &&
58169 + (!S_ISREG(mode) || is_privileged_binary(dentry) ||
58170 + (inode_permission(inode, MAY_READ | MAY_WRITE))) &&
58171 + !capable(CAP_FOWNER) && !uid_eq(cred->uid, GLOBAL_ROOT_UID)) {
58172 + gr_log_fs_int2_str(GR_DONT_AUDIT, GR_HARDLINK_MSG, dentry, mnt, inode->i_uid, inode->i_gid, to);
58173 + return -EPERM;
58174 + }
58175 +#endif
58176 + return 0;
58177 +}
58178 diff --git a/grsecurity/grsec_log.c b/grsecurity/grsec_log.c
58179 new file mode 100644
58180 index 0000000..a45d2e9
58181 --- /dev/null
58182 +++ b/grsecurity/grsec_log.c
58183 @@ -0,0 +1,322 @@
58184 +#include <linux/kernel.h>
58185 +#include <linux/sched.h>
58186 +#include <linux/file.h>
58187 +#include <linux/tty.h>
58188 +#include <linux/fs.h>
58189 +#include <linux/grinternal.h>
58190 +
58191 +#ifdef CONFIG_TREE_PREEMPT_RCU
58192 +#define DISABLE_PREEMPT() preempt_disable()
58193 +#define ENABLE_PREEMPT() preempt_enable()
58194 +#else
58195 +#define DISABLE_PREEMPT()
58196 +#define ENABLE_PREEMPT()
58197 +#endif
58198 +
58199 +#define BEGIN_LOCKS(x) \
58200 + DISABLE_PREEMPT(); \
58201 + rcu_read_lock(); \
58202 + read_lock(&tasklist_lock); \
58203 + read_lock(&grsec_exec_file_lock); \
58204 + if (x != GR_DO_AUDIT) \
58205 + spin_lock(&grsec_alert_lock); \
58206 + else \
58207 + spin_lock(&grsec_audit_lock)
58208 +
58209 +#define END_LOCKS(x) \
58210 + if (x != GR_DO_AUDIT) \
58211 + spin_unlock(&grsec_alert_lock); \
58212 + else \
58213 + spin_unlock(&grsec_audit_lock); \
58214 + read_unlock(&grsec_exec_file_lock); \
58215 + read_unlock(&tasklist_lock); \
58216 + rcu_read_unlock(); \
58217 + ENABLE_PREEMPT(); \
58218 + if (x == GR_DONT_AUDIT) \
58219 + gr_handle_alertkill(current)
58220 +
58221 +enum {
58222 + FLOODING,
58223 + NO_FLOODING
58224 +};
58225 +
58226 +extern char *gr_alert_log_fmt;
58227 +extern char *gr_audit_log_fmt;
58228 +extern char *gr_alert_log_buf;
58229 +extern char *gr_audit_log_buf;
58230 +
58231 +static int gr_log_start(int audit)
58232 +{
58233 + char *loglevel = (audit == GR_DO_AUDIT) ? KERN_INFO : KERN_ALERT;
58234 + char *fmt = (audit == GR_DO_AUDIT) ? gr_audit_log_fmt : gr_alert_log_fmt;
58235 + char *buf = (audit == GR_DO_AUDIT) ? gr_audit_log_buf : gr_alert_log_buf;
58236 +#if (CONFIG_GRKERNSEC_FLOODTIME > 0 && CONFIG_GRKERNSEC_FLOODBURST > 0)
58237 + unsigned long curr_secs = get_seconds();
58238 +
58239 + if (audit == GR_DO_AUDIT)
58240 + goto set_fmt;
58241 +
58242 + if (!grsec_alert_wtime || time_after(curr_secs, grsec_alert_wtime + CONFIG_GRKERNSEC_FLOODTIME)) {
58243 + grsec_alert_wtime = curr_secs;
58244 + grsec_alert_fyet = 0;
58245 + } else if (time_before_eq(curr_secs, grsec_alert_wtime + CONFIG_GRKERNSEC_FLOODTIME)
58246 + && (grsec_alert_fyet < CONFIG_GRKERNSEC_FLOODBURST)) {
58247 + grsec_alert_fyet++;
58248 + } else if (grsec_alert_fyet == CONFIG_GRKERNSEC_FLOODBURST) {
58249 + grsec_alert_wtime = curr_secs;
58250 + grsec_alert_fyet++;
58251 + printk(KERN_ALERT "grsec: more alerts, logging disabled for %d seconds\n", CONFIG_GRKERNSEC_FLOODTIME);
58252 + return FLOODING;
58253 + }
58254 + else return FLOODING;
58255 +
58256 +set_fmt:
58257 +#endif
58258 + memset(buf, 0, PAGE_SIZE);
58259 + if (current->signal->curr_ip && gr_acl_is_enabled()) {
58260 + sprintf(fmt, "%s%s", loglevel, "grsec: From %pI4: (%.64s:%c:%.950s) ");
58261 + snprintf(buf, PAGE_SIZE - 1, fmt, &current->signal->curr_ip, current->role->rolename, gr_roletype_to_char(), current->acl->filename);
58262 + } else if (current->signal->curr_ip) {
58263 + sprintf(fmt, "%s%s", loglevel, "grsec: From %pI4: ");
58264 + snprintf(buf, PAGE_SIZE - 1, fmt, &current->signal->curr_ip);
58265 + } else if (gr_acl_is_enabled()) {
58266 + sprintf(fmt, "%s%s", loglevel, "grsec: (%.64s:%c:%.950s) ");
58267 + snprintf(buf, PAGE_SIZE - 1, fmt, current->role->rolename, gr_roletype_to_char(), current->acl->filename);
58268 + } else {
58269 + sprintf(fmt, "%s%s", loglevel, "grsec: ");
58270 + strcpy(buf, fmt);
58271 + }
58272 +
58273 + return NO_FLOODING;
58274 +}
58275 +
58276 +static void gr_log_middle(int audit, const char *msg, va_list ap)
58277 + __attribute__ ((format (printf, 2, 0)));
58278 +
58279 +static void gr_log_middle(int audit, const char *msg, va_list ap)
58280 +{
58281 + char *buf = (audit == GR_DO_AUDIT) ? gr_audit_log_buf : gr_alert_log_buf;
58282 + unsigned int len = strlen(buf);
58283 +
58284 + vsnprintf(buf + len, PAGE_SIZE - len - 1, msg, ap);
58285 +
58286 + return;
58287 +}
58288 +
58289 +static void gr_log_middle_varargs(int audit, const char *msg, ...)
58290 + __attribute__ ((format (printf, 2, 3)));
58291 +
58292 +static void gr_log_middle_varargs(int audit, const char *msg, ...)
58293 +{
58294 + char *buf = (audit == GR_DO_AUDIT) ? gr_audit_log_buf : gr_alert_log_buf;
58295 + unsigned int len = strlen(buf);
58296 + va_list ap;
58297 +
58298 + va_start(ap, msg);
58299 + vsnprintf(buf + len, PAGE_SIZE - len - 1, msg, ap);
58300 + va_end(ap);
58301 +
58302 + return;
58303 +}
58304 +
58305 +static void gr_log_end(int audit, int append_default)
58306 +{
58307 + char *buf = (audit == GR_DO_AUDIT) ? gr_audit_log_buf : gr_alert_log_buf;
58308 +
58309 + if (append_default) {
58310 + unsigned int len = strlen(buf);
58311 + snprintf(buf + len, PAGE_SIZE - len - 1, DEFAULTSECMSG, DEFAULTSECARGS(current, current_cred(), __task_cred(current->real_parent)));
58312 + }
58313 +
58314 + printk("%s\n", buf);
58315 +
58316 + return;
58317 +}
58318 +
58319 +void gr_log_varargs(int audit, const char *msg, int argtypes, ...)
58320 +{
58321 + int logtype;
58322 + char *result = (audit == GR_DO_AUDIT) ? "successful" : "denied";
58323 + char *str1 = NULL, *str2 = NULL, *str3 = NULL;
58324 + void *voidptr = NULL;
58325 + int num1 = 0, num2 = 0;
58326 + unsigned long ulong1 = 0, ulong2 = 0;
58327 + struct dentry *dentry = NULL;
58328 + struct vfsmount *mnt = NULL;
58329 + struct file *file = NULL;
58330 + struct task_struct *task = NULL;
58331 + const struct cred *cred, *pcred;
58332 + va_list ap;
58333 +
58334 + BEGIN_LOCKS(audit);
58335 + logtype = gr_log_start(audit);
58336 + if (logtype == FLOODING) {
58337 + END_LOCKS(audit);
58338 + return;
58339 + }
58340 + va_start(ap, argtypes);
58341 + switch (argtypes) {
58342 + case GR_TTYSNIFF:
58343 + task = va_arg(ap, struct task_struct *);
58344 + gr_log_middle_varargs(audit, msg, &task->signal->curr_ip, gr_task_fullpath0(task), task->comm, task->pid, gr_parent_task_fullpath0(task), task->real_parent->comm, task->real_parent->pid);
58345 + break;
58346 + case GR_SYSCTL_HIDDEN:
58347 + str1 = va_arg(ap, char *);
58348 + gr_log_middle_varargs(audit, msg, result, str1);
58349 + break;
58350 + case GR_RBAC:
58351 + dentry = va_arg(ap, struct dentry *);
58352 + mnt = va_arg(ap, struct vfsmount *);
58353 + gr_log_middle_varargs(audit, msg, result, gr_to_filename(dentry, mnt));
58354 + break;
58355 + case GR_RBAC_STR:
58356 + dentry = va_arg(ap, struct dentry *);
58357 + mnt = va_arg(ap, struct vfsmount *);
58358 + str1 = va_arg(ap, char *);
58359 + gr_log_middle_varargs(audit, msg, result, gr_to_filename(dentry, mnt), str1);
58360 + break;
58361 + case GR_STR_RBAC:
58362 + str1 = va_arg(ap, char *);
58363 + dentry = va_arg(ap, struct dentry *);
58364 + mnt = va_arg(ap, struct vfsmount *);
58365 + gr_log_middle_varargs(audit, msg, result, str1, gr_to_filename(dentry, mnt));
58366 + break;
58367 + case GR_RBAC_MODE2:
58368 + dentry = va_arg(ap, struct dentry *);
58369 + mnt = va_arg(ap, struct vfsmount *);
58370 + str1 = va_arg(ap, char *);
58371 + str2 = va_arg(ap, char *);
58372 + gr_log_middle_varargs(audit, msg, result, gr_to_filename(dentry, mnt), str1, str2);
58373 + break;
58374 + case GR_RBAC_MODE3:
58375 + dentry = va_arg(ap, struct dentry *);
58376 + mnt = va_arg(ap, struct vfsmount *);
58377 + str1 = va_arg(ap, char *);
58378 + str2 = va_arg(ap, char *);
58379 + str3 = va_arg(ap, char *);
58380 + gr_log_middle_varargs(audit, msg, result, gr_to_filename(dentry, mnt), str1, str2, str3);
58381 + break;
58382 + case GR_FILENAME:
58383 + dentry = va_arg(ap, struct dentry *);
58384 + mnt = va_arg(ap, struct vfsmount *);
58385 + gr_log_middle_varargs(audit, msg, gr_to_filename(dentry, mnt));
58386 + break;
58387 + case GR_STR_FILENAME:
58388 + str1 = va_arg(ap, char *);
58389 + dentry = va_arg(ap, struct dentry *);
58390 + mnt = va_arg(ap, struct vfsmount *);
58391 + gr_log_middle_varargs(audit, msg, str1, gr_to_filename(dentry, mnt));
58392 + break;
58393 + case GR_FILENAME_STR:
58394 + dentry = va_arg(ap, struct dentry *);
58395 + mnt = va_arg(ap, struct vfsmount *);
58396 + str1 = va_arg(ap, char *);
58397 + gr_log_middle_varargs(audit, msg, gr_to_filename(dentry, mnt), str1);
58398 + break;
58399 + case GR_FILENAME_TWO_INT:
58400 + dentry = va_arg(ap, struct dentry *);
58401 + mnt = va_arg(ap, struct vfsmount *);
58402 + num1 = va_arg(ap, int);
58403 + num2 = va_arg(ap, int);
58404 + gr_log_middle_varargs(audit, msg, gr_to_filename(dentry, mnt), num1, num2);
58405 + break;
58406 + case GR_FILENAME_TWO_INT_STR:
58407 + dentry = va_arg(ap, struct dentry *);
58408 + mnt = va_arg(ap, struct vfsmount *);
58409 + num1 = va_arg(ap, int);
58410 + num2 = va_arg(ap, int);
58411 + str1 = va_arg(ap, char *);
58412 + gr_log_middle_varargs(audit, msg, gr_to_filename(dentry, mnt), num1, num2, str1);
58413 + break;
58414 + case GR_TEXTREL:
58415 + file = va_arg(ap, struct file *);
58416 + ulong1 = va_arg(ap, unsigned long);
58417 + ulong2 = va_arg(ap, unsigned long);
58418 + gr_log_middle_varargs(audit, msg, file ? gr_to_filename(file->f_path.dentry, file->f_path.mnt) : "<anonymous mapping>", ulong1, ulong2);
58419 + break;
58420 + case GR_PTRACE:
58421 + task = va_arg(ap, struct task_struct *);
58422 + 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);
58423 + break;
58424 + case GR_RESOURCE:
58425 + task = va_arg(ap, struct task_struct *);
58426 + cred = __task_cred(task);
58427 + pcred = __task_cred(task->real_parent);
58428 + ulong1 = va_arg(ap, unsigned long);
58429 + str1 = va_arg(ap, char *);
58430 + ulong2 = va_arg(ap, unsigned long);
58431 + gr_log_middle_varargs(audit, msg, ulong1, str1, ulong2, gr_task_fullpath(task), task->comm, task->pid, cred->uid, cred->euid, cred->gid, cred->egid, gr_parent_task_fullpath(task), task->real_parent->comm, task->real_parent->pid, pcred->uid, pcred->euid, pcred->gid, pcred->egid);
58432 + break;
58433 + case GR_CAP:
58434 + task = va_arg(ap, struct task_struct *);
58435 + cred = __task_cred(task);
58436 + pcred = __task_cred(task->real_parent);
58437 + str1 = va_arg(ap, char *);
58438 + gr_log_middle_varargs(audit, msg, str1, gr_task_fullpath(task), task->comm, task->pid, cred->uid, cred->euid, cred->gid, cred->egid, gr_parent_task_fullpath(task), task->real_parent->comm, task->real_parent->pid, pcred->uid, pcred->euid, pcred->gid, pcred->egid);
58439 + break;
58440 + case GR_SIG:
58441 + str1 = va_arg(ap, char *);
58442 + voidptr = va_arg(ap, void *);
58443 + gr_log_middle_varargs(audit, msg, str1, voidptr);
58444 + break;
58445 + case GR_SIG2:
58446 + task = va_arg(ap, struct task_struct *);
58447 + cred = __task_cred(task);
58448 + pcred = __task_cred(task->real_parent);
58449 + num1 = va_arg(ap, int);
58450 + gr_log_middle_varargs(audit, msg, num1, gr_task_fullpath0(task), task->comm, task->pid, cred->uid, cred->euid, cred->gid, cred->egid, gr_parent_task_fullpath0(task), task->real_parent->comm, task->real_parent->pid, pcred->uid, pcred->euid, pcred->gid, pcred->egid);
58451 + break;
58452 + case GR_CRASH1:
58453 + task = va_arg(ap, struct task_struct *);
58454 + cred = __task_cred(task);
58455 + pcred = __task_cred(task->real_parent);
58456 + ulong1 = va_arg(ap, unsigned long);
58457 + gr_log_middle_varargs(audit, msg, gr_task_fullpath(task), task->comm, task->pid, cred->uid, cred->euid, cred->gid, cred->egid, gr_parent_task_fullpath(task), task->real_parent->comm, task->real_parent->pid, pcred->uid, pcred->euid, pcred->gid, pcred->egid, cred->uid, ulong1);
58458 + break;
58459 + case GR_CRASH2:
58460 + task = va_arg(ap, struct task_struct *);
58461 + cred = __task_cred(task);
58462 + pcred = __task_cred(task->real_parent);
58463 + ulong1 = va_arg(ap, unsigned long);
58464 + gr_log_middle_varargs(audit, msg, gr_task_fullpath(task), task->comm, task->pid, cred->uid, cred->euid, cred->gid, cred->egid, gr_parent_task_fullpath(task), task->real_parent->comm, task->real_parent->pid, pcred->uid, pcred->euid, pcred->gid, pcred->egid, ulong1);
58465 + break;
58466 + case GR_RWXMAP:
58467 + file = va_arg(ap, struct file *);
58468 + gr_log_middle_varargs(audit, msg, file ? gr_to_filename(file->f_path.dentry, file->f_path.mnt) : "<anonymous mapping>");
58469 + break;
58470 + case GR_PSACCT:
58471 + {
58472 + unsigned int wday, cday;
58473 + __u8 whr, chr;
58474 + __u8 wmin, cmin;
58475 + __u8 wsec, csec;
58476 + char cur_tty[64] = { 0 };
58477 + char parent_tty[64] = { 0 };
58478 +
58479 + task = va_arg(ap, struct task_struct *);
58480 + wday = va_arg(ap, unsigned int);
58481 + cday = va_arg(ap, unsigned int);
58482 + whr = va_arg(ap, int);
58483 + chr = va_arg(ap, int);
58484 + wmin = va_arg(ap, int);
58485 + cmin = va_arg(ap, int);
58486 + wsec = va_arg(ap, int);
58487 + csec = va_arg(ap, int);
58488 + ulong1 = va_arg(ap, unsigned long);
58489 + cred = __task_cred(task);
58490 + pcred = __task_cred(task->real_parent);
58491 +
58492 + gr_log_middle_varargs(audit, msg, gr_task_fullpath(task), task->comm, task->pid, &task->signal->curr_ip, tty_name(task->signal->tty, cur_tty), cred->uid, cred->euid, cred->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->real_parent->pid, &task->real_parent->signal->curr_ip, tty_name(task->real_parent->signal->tty, parent_tty), pcred->uid, pcred->euid, pcred->gid, pcred->egid);
58493 + }
58494 + break;
58495 + default:
58496 + gr_log_middle(audit, msg, ap);
58497 + }
58498 + va_end(ap);
58499 + // these don't need DEFAULTSECARGS printed on the end
58500 + if (argtypes == GR_CRASH1 || argtypes == GR_CRASH2)
58501 + gr_log_end(audit, 0);
58502 + else
58503 + gr_log_end(audit, 1);
58504 + END_LOCKS(audit);
58505 +}
58506 diff --git a/grsecurity/grsec_mem.c b/grsecurity/grsec_mem.c
58507 new file mode 100644
58508 index 0000000..f536303
58509 --- /dev/null
58510 +++ b/grsecurity/grsec_mem.c
58511 @@ -0,0 +1,40 @@
58512 +#include <linux/kernel.h>
58513 +#include <linux/sched.h>
58514 +#include <linux/mm.h>
58515 +#include <linux/mman.h>
58516 +#include <linux/grinternal.h>
58517 +
58518 +void
58519 +gr_handle_ioperm(void)
58520 +{
58521 + gr_log_noargs(GR_DONT_AUDIT, GR_IOPERM_MSG);
58522 + return;
58523 +}
58524 +
58525 +void
58526 +gr_handle_iopl(void)
58527 +{
58528 + gr_log_noargs(GR_DONT_AUDIT, GR_IOPL_MSG);
58529 + return;
58530 +}
58531 +
58532 +void
58533 +gr_handle_mem_readwrite(u64 from, u64 to)
58534 +{
58535 + gr_log_two_u64(GR_DONT_AUDIT, GR_MEM_READWRITE_MSG, from, to);
58536 + return;
58537 +}
58538 +
58539 +void
58540 +gr_handle_vm86(void)
58541 +{
58542 + gr_log_noargs(GR_DONT_AUDIT, GR_VM86_MSG);
58543 + return;
58544 +}
58545 +
58546 +void
58547 +gr_log_badprocpid(const char *entry)
58548 +{
58549 + gr_log_str(GR_DONT_AUDIT, GR_BADPROCPID_MSG, entry);
58550 + return;
58551 +}
58552 diff --git a/grsecurity/grsec_mount.c b/grsecurity/grsec_mount.c
58553 new file mode 100644
58554 index 0000000..2131422
58555 --- /dev/null
58556 +++ b/grsecurity/grsec_mount.c
58557 @@ -0,0 +1,62 @@
58558 +#include <linux/kernel.h>
58559 +#include <linux/sched.h>
58560 +#include <linux/mount.h>
58561 +#include <linux/grsecurity.h>
58562 +#include <linux/grinternal.h>
58563 +
58564 +void
58565 +gr_log_remount(const char *devname, const int retval)
58566 +{
58567 +#ifdef CONFIG_GRKERNSEC_AUDIT_MOUNT
58568 + if (grsec_enable_mount && (retval >= 0))
58569 + gr_log_str(GR_DO_AUDIT, GR_REMOUNT_AUDIT_MSG, devname ? devname : "none");
58570 +#endif
58571 + return;
58572 +}
58573 +
58574 +void
58575 +gr_log_unmount(const char *devname, const int retval)
58576 +{
58577 +#ifdef CONFIG_GRKERNSEC_AUDIT_MOUNT
58578 + if (grsec_enable_mount && (retval >= 0))
58579 + gr_log_str(GR_DO_AUDIT, GR_UNMOUNT_AUDIT_MSG, devname ? devname : "none");
58580 +#endif
58581 + return;
58582 +}
58583 +
58584 +void
58585 +gr_log_mount(const char *from, const char *to, const int retval)
58586 +{
58587 +#ifdef CONFIG_GRKERNSEC_AUDIT_MOUNT
58588 + if (grsec_enable_mount && (retval >= 0))
58589 + gr_log_str_str(GR_DO_AUDIT, GR_MOUNT_AUDIT_MSG, from ? from : "none", to);
58590 +#endif
58591 + return;
58592 +}
58593 +
58594 +int
58595 +gr_handle_rofs_mount(struct dentry *dentry, struct vfsmount *mnt, int mnt_flags)
58596 +{
58597 +#ifdef CONFIG_GRKERNSEC_ROFS
58598 + if (grsec_enable_rofs && !(mnt_flags & MNT_READONLY)) {
58599 + gr_log_fs_generic(GR_DO_AUDIT, GR_ROFS_MOUNT_MSG, dentry, mnt);
58600 + return -EPERM;
58601 + } else
58602 + return 0;
58603 +#endif
58604 + return 0;
58605 +}
58606 +
58607 +int
58608 +gr_handle_rofs_blockwrite(struct dentry *dentry, struct vfsmount *mnt, int acc_mode)
58609 +{
58610 +#ifdef CONFIG_GRKERNSEC_ROFS
58611 + if (grsec_enable_rofs && (acc_mode & MAY_WRITE) &&
58612 + dentry->d_inode && S_ISBLK(dentry->d_inode->i_mode)) {
58613 + gr_log_fs_generic(GR_DO_AUDIT, GR_ROFS_BLOCKWRITE_MSG, dentry, mnt);
58614 + return -EPERM;
58615 + } else
58616 + return 0;
58617 +#endif
58618 + return 0;
58619 +}
58620 diff --git a/grsecurity/grsec_pax.c b/grsecurity/grsec_pax.c
58621 new file mode 100644
58622 index 0000000..a3b12a0
58623 --- /dev/null
58624 +++ b/grsecurity/grsec_pax.c
58625 @@ -0,0 +1,36 @@
58626 +#include <linux/kernel.h>
58627 +#include <linux/sched.h>
58628 +#include <linux/mm.h>
58629 +#include <linux/file.h>
58630 +#include <linux/grinternal.h>
58631 +#include <linux/grsecurity.h>
58632 +
58633 +void
58634 +gr_log_textrel(struct vm_area_struct * vma)
58635 +{
58636 +#ifdef CONFIG_GRKERNSEC_AUDIT_TEXTREL
58637 + if (grsec_enable_audit_textrel)
58638 + gr_log_textrel_ulong_ulong(GR_DO_AUDIT, GR_TEXTREL_AUDIT_MSG, vma->vm_file, vma->vm_start, vma->vm_pgoff);
58639 +#endif
58640 + return;
58641 +}
58642 +
58643 +void
58644 +gr_log_rwxmmap(struct file *file)
58645 +{
58646 +#ifdef CONFIG_GRKERNSEC_RWXMAP_LOG
58647 + if (grsec_enable_log_rwxmaps)
58648 + gr_log_rwxmap(GR_DONT_AUDIT, GR_RWXMMAP_MSG, file);
58649 +#endif
58650 + return;
58651 +}
58652 +
58653 +void
58654 +gr_log_rwxmprotect(struct file *file)
58655 +{
58656 +#ifdef CONFIG_GRKERNSEC_RWXMAP_LOG
58657 + if (grsec_enable_log_rwxmaps)
58658 + gr_log_rwxmap(GR_DONT_AUDIT, GR_RWXMPROTECT_MSG, file);
58659 +#endif
58660 + return;
58661 +}
58662 diff --git a/grsecurity/grsec_ptrace.c b/grsecurity/grsec_ptrace.c
58663 new file mode 100644
58664 index 0000000..f7f29aa
58665 --- /dev/null
58666 +++ b/grsecurity/grsec_ptrace.c
58667 @@ -0,0 +1,30 @@
58668 +#include <linux/kernel.h>
58669 +#include <linux/sched.h>
58670 +#include <linux/grinternal.h>
58671 +#include <linux/security.h>
58672 +
58673 +void
58674 +gr_audit_ptrace(struct task_struct *task)
58675 +{
58676 +#ifdef CONFIG_GRKERNSEC_AUDIT_PTRACE
58677 + if (grsec_enable_audit_ptrace)
58678 + gr_log_ptrace(GR_DO_AUDIT, GR_PTRACE_AUDIT_MSG, task);
58679 +#endif
58680 + return;
58681 +}
58682 +
58683 +int
58684 +gr_ptrace_readexec(struct file *file, int unsafe_flags)
58685 +{
58686 +#ifdef CONFIG_GRKERNSEC_PTRACE_READEXEC
58687 + const struct dentry *dentry = file->f_path.dentry;
58688 + const struct vfsmount *mnt = file->f_path.mnt;
58689 +
58690 + if (grsec_enable_ptrace_readexec && (unsafe_flags & LSM_UNSAFE_PTRACE) &&
58691 + (inode_permission(dentry->d_inode, MAY_READ) || !gr_acl_handle_open(dentry, mnt, MAY_READ))) {
58692 + gr_log_fs_generic(GR_DONT_AUDIT, GR_PTRACE_READEXEC_MSG, dentry, mnt);
58693 + return -EACCES;
58694 + }
58695 +#endif
58696 + return 0;
58697 +}
58698 diff --git a/grsecurity/grsec_sig.c b/grsecurity/grsec_sig.c
58699 new file mode 100644
58700 index 0000000..b4ac94c
58701 --- /dev/null
58702 +++ b/grsecurity/grsec_sig.c
58703 @@ -0,0 +1,209 @@
58704 +#include <linux/kernel.h>
58705 +#include <linux/sched.h>
58706 +#include <linux/delay.h>
58707 +#include <linux/grsecurity.h>
58708 +#include <linux/grinternal.h>
58709 +#include <linux/hardirq.h>
58710 +
58711 +char *signames[] = {
58712 + [SIGSEGV] = "Segmentation fault",
58713 + [SIGILL] = "Illegal instruction",
58714 + [SIGABRT] = "Abort",
58715 + [SIGBUS] = "Invalid alignment/Bus error"
58716 +};
58717 +
58718 +void
58719 +gr_log_signal(const int sig, const void *addr, const struct task_struct *t)
58720 +{
58721 +#ifdef CONFIG_GRKERNSEC_SIGNAL
58722 + if (grsec_enable_signal && ((sig == SIGSEGV) || (sig == SIGILL) ||
58723 + (sig == SIGABRT) || (sig == SIGBUS))) {
58724 + if (t->pid == current->pid) {
58725 + gr_log_sig_addr(GR_DONT_AUDIT_GOOD, GR_UNISIGLOG_MSG, signames[sig], addr);
58726 + } else {
58727 + gr_log_sig_task(GR_DONT_AUDIT_GOOD, GR_DUALSIGLOG_MSG, t, sig);
58728 + }
58729 + }
58730 +#endif
58731 + return;
58732 +}
58733 +
58734 +int
58735 +gr_handle_signal(const struct task_struct *p, const int sig)
58736 +{
58737 +#ifdef CONFIG_GRKERNSEC
58738 + /* ignore the 0 signal for protected task checks */
58739 + if (current->pid > 1 && sig && gr_check_protected_task(p)) {
58740 + gr_log_sig_task(GR_DONT_AUDIT, GR_SIG_ACL_MSG, p, sig);
58741 + return -EPERM;
58742 + } else if (gr_pid_is_chrooted((struct task_struct *)p)) {
58743 + return -EPERM;
58744 + }
58745 +#endif
58746 + return 0;
58747 +}
58748 +
58749 +#ifdef CONFIG_GRKERNSEC
58750 +extern int specific_send_sig_info(int sig, struct siginfo *info, struct task_struct *t);
58751 +
58752 +int gr_fake_force_sig(int sig, struct task_struct *t)
58753 +{
58754 + unsigned long int flags;
58755 + int ret, blocked, ignored;
58756 + struct k_sigaction *action;
58757 +
58758 + spin_lock_irqsave(&t->sighand->siglock, flags);
58759 + action = &t->sighand->action[sig-1];
58760 + ignored = action->sa.sa_handler == SIG_IGN;
58761 + blocked = sigismember(&t->blocked, sig);
58762 + if (blocked || ignored) {
58763 + action->sa.sa_handler = SIG_DFL;
58764 + if (blocked) {
58765 + sigdelset(&t->blocked, sig);
58766 + recalc_sigpending_and_wake(t);
58767 + }
58768 + }
58769 + if (action->sa.sa_handler == SIG_DFL)
58770 + t->signal->flags &= ~SIGNAL_UNKILLABLE;
58771 + ret = specific_send_sig_info(sig, SEND_SIG_PRIV, t);
58772 +
58773 + spin_unlock_irqrestore(&t->sighand->siglock, flags);
58774 +
58775 + return ret;
58776 +}
58777 +#endif
58778 +
58779 +#ifdef CONFIG_GRKERNSEC_BRUTE
58780 +#define GR_USER_BAN_TIME (15 * 60)
58781 +
58782 +static int __get_dumpable(unsigned long mm_flags)
58783 +{
58784 + int ret;
58785 +
58786 + ret = mm_flags & MMF_DUMPABLE_MASK;
58787 + return (ret >= 2) ? 2 : ret;
58788 +}
58789 +#endif
58790 +
58791 +void gr_handle_brute_attach(struct task_struct *p, unsigned long mm_flags)
58792 +{
58793 +#ifdef CONFIG_GRKERNSEC_BRUTE
58794 + kuid_t uid = GLOBAL_ROOT_UID;
58795 +
58796 + if (!grsec_enable_brute)
58797 + return;
58798 +
58799 + rcu_read_lock();
58800 + read_lock(&tasklist_lock);
58801 + read_lock(&grsec_exec_file_lock);
58802 + if (p->real_parent && p->real_parent->exec_file == p->exec_file)
58803 + p->real_parent->brute = 1;
58804 + else {
58805 + const struct cred *cred = __task_cred(p), *cred2;
58806 + struct task_struct *tsk, *tsk2;
58807 +
58808 + if (!__get_dumpable(mm_flags) && !uid_eq(cred->uid, GLOBAL_ROOT_UID)) {
58809 + struct user_struct *user;
58810 +
58811 + uid = cred->uid;
58812 +
58813 + /* this is put upon execution past expiration */
58814 + user = find_user(uid);
58815 + if (user == NULL)
58816 + goto unlock;
58817 + user->banned = 1;
58818 + user->ban_expires = get_seconds() + GR_USER_BAN_TIME;
58819 + if (user->ban_expires == ~0UL)
58820 + user->ban_expires--;
58821 +
58822 + do_each_thread(tsk2, tsk) {
58823 + cred2 = __task_cred(tsk);
58824 + if (tsk != p && uid_eq(cred2->uid, uid))
58825 + gr_fake_force_sig(SIGKILL, tsk);
58826 + } while_each_thread(tsk2, tsk);
58827 + }
58828 + }
58829 +unlock:
58830 + read_unlock(&grsec_exec_file_lock);
58831 + read_unlock(&tasklist_lock);
58832 + rcu_read_unlock();
58833 +
58834 + if (!uid_eq(uid, GLOBAL_ROOT_UID))
58835 + printk(KERN_ALERT "grsec: bruteforce prevention initiated against uid %u, banning for %d minutes\n",
58836 + from_kuid_munged(&init_user_ns, uid), GR_USER_BAN_TIME / 60);
58837 +
58838 +#endif
58839 + return;
58840 +}
58841 +
58842 +void gr_handle_brute_check(void)
58843 +{
58844 +#ifdef CONFIG_GRKERNSEC_BRUTE
58845 + if (current->brute)
58846 + msleep(30 * 1000);
58847 +#endif
58848 + return;
58849 +}
58850 +
58851 +void gr_handle_kernel_exploit(void)
58852 +{
58853 +#ifdef CONFIG_GRKERNSEC_KERN_LOCKOUT
58854 + const struct cred *cred;
58855 + struct task_struct *tsk, *tsk2;
58856 + struct user_struct *user;
58857 + kuid_t uid;
58858 +
58859 + if (in_irq() || in_serving_softirq() || in_nmi())
58860 + panic("grsec: halting the system due to suspicious kernel crash caused in interrupt context");
58861 +
58862 + uid = current_uid();
58863 +
58864 + if (uid_eq(uid, GLOBAL_ROOT_UID))
58865 + panic("grsec: halting the system due to suspicious kernel crash caused by root");
58866 + else {
58867 + /* kill all the processes of this user, hold a reference
58868 + to their creds struct, and prevent them from creating
58869 + another process until system reset
58870 + */
58871 + printk(KERN_ALERT "grsec: banning user with uid %u until system restart for suspicious kernel crash\n",
58872 + from_kuid_munged(&init_user_ns, uid));
58873 + /* we intentionally leak this ref */
58874 + user = get_uid(current->cred->user);
58875 + if (user) {
58876 + user->banned = 1;
58877 + user->ban_expires = ~0UL;
58878 + }
58879 +
58880 + read_lock(&tasklist_lock);
58881 + do_each_thread(tsk2, tsk) {
58882 + cred = __task_cred(tsk);
58883 + if (uid_eq(cred->uid, uid))
58884 + gr_fake_force_sig(SIGKILL, tsk);
58885 + } while_each_thread(tsk2, tsk);
58886 + read_unlock(&tasklist_lock);
58887 + }
58888 +#endif
58889 +}
58890 +
58891 +int __gr_process_user_ban(struct user_struct *user)
58892 +{
58893 +#if defined(CONFIG_GRKERNSEC_KERN_LOCKOUT) || defined(CONFIG_GRKERNSEC_BRUTE)
58894 + if (unlikely(user->banned)) {
58895 + if (user->ban_expires != ~0UL && time_after_eq(get_seconds(), user->ban_expires)) {
58896 + user->banned = 0;
58897 + user->ban_expires = 0;
58898 + free_uid(user);
58899 + } else
58900 + return -EPERM;
58901 + }
58902 +#endif
58903 + return 0;
58904 +}
58905 +
58906 +int gr_process_user_ban(void)
58907 +{
58908 +#if defined(CONFIG_GRKERNSEC_KERN_LOCKOUT) || defined(CONFIG_GRKERNSEC_BRUTE)
58909 + return __gr_process_user_ban(current->cred->user);
58910 +#endif
58911 + return 0;
58912 +}
58913 diff --git a/grsecurity/grsec_sock.c b/grsecurity/grsec_sock.c
58914 new file mode 100644
58915 index 0000000..4030d57
58916 --- /dev/null
58917 +++ b/grsecurity/grsec_sock.c
58918 @@ -0,0 +1,244 @@
58919 +#include <linux/kernel.h>
58920 +#include <linux/module.h>
58921 +#include <linux/sched.h>
58922 +#include <linux/file.h>
58923 +#include <linux/net.h>
58924 +#include <linux/in.h>
58925 +#include <linux/ip.h>
58926 +#include <net/sock.h>
58927 +#include <net/inet_sock.h>
58928 +#include <linux/grsecurity.h>
58929 +#include <linux/grinternal.h>
58930 +#include <linux/gracl.h>
58931 +
58932 +extern int gr_search_udp_recvmsg(const struct sock *sk, const struct sk_buff *skb);
58933 +extern int gr_search_udp_sendmsg(const struct sock *sk, const struct sockaddr_in *addr);
58934 +
58935 +EXPORT_SYMBOL(gr_search_udp_recvmsg);
58936 +EXPORT_SYMBOL(gr_search_udp_sendmsg);
58937 +
58938 +#ifdef CONFIG_UNIX_MODULE
58939 +EXPORT_SYMBOL(gr_acl_handle_unix);
58940 +EXPORT_SYMBOL(gr_acl_handle_mknod);
58941 +EXPORT_SYMBOL(gr_handle_chroot_unix);
58942 +EXPORT_SYMBOL(gr_handle_create);
58943 +#endif
58944 +
58945 +#ifdef CONFIG_GRKERNSEC
58946 +#define gr_conn_table_size 32749
58947 +struct conn_table_entry {
58948 + struct conn_table_entry *next;
58949 + struct signal_struct *sig;
58950 +};
58951 +
58952 +struct conn_table_entry *gr_conn_table[gr_conn_table_size];
58953 +DEFINE_SPINLOCK(gr_conn_table_lock);
58954 +
58955 +extern const char * gr_socktype_to_name(unsigned char type);
58956 +extern const char * gr_proto_to_name(unsigned char proto);
58957 +extern const char * gr_sockfamily_to_name(unsigned char family);
58958 +
58959 +static __inline__ int
58960 +conn_hash(__u32 saddr, __u32 daddr, __u16 sport, __u16 dport, unsigned int size)
58961 +{
58962 + return ((daddr + saddr + (sport << 8) + (dport << 16)) % size);
58963 +}
58964 +
58965 +static __inline__ int
58966 +conn_match(const struct signal_struct *sig, __u32 saddr, __u32 daddr,
58967 + __u16 sport, __u16 dport)
58968 +{
58969 + if (unlikely(sig->gr_saddr == saddr && sig->gr_daddr == daddr &&
58970 + sig->gr_sport == sport && sig->gr_dport == dport))
58971 + return 1;
58972 + else
58973 + return 0;
58974 +}
58975 +
58976 +static void gr_add_to_task_ip_table_nolock(struct signal_struct *sig, struct conn_table_entry *newent)
58977 +{
58978 + struct conn_table_entry **match;
58979 + unsigned int index;
58980 +
58981 + index = conn_hash(sig->gr_saddr, sig->gr_daddr,
58982 + sig->gr_sport, sig->gr_dport,
58983 + gr_conn_table_size);
58984 +
58985 + newent->sig = sig;
58986 +
58987 + match = &gr_conn_table[index];
58988 + newent->next = *match;
58989 + *match = newent;
58990 +
58991 + return;
58992 +}
58993 +
58994 +static void gr_del_task_from_ip_table_nolock(struct signal_struct *sig)
58995 +{
58996 + struct conn_table_entry *match, *last = NULL;
58997 + unsigned int index;
58998 +
58999 + index = conn_hash(sig->gr_saddr, sig->gr_daddr,
59000 + sig->gr_sport, sig->gr_dport,
59001 + gr_conn_table_size);
59002 +
59003 + match = gr_conn_table[index];
59004 + while (match && !conn_match(match->sig,
59005 + sig->gr_saddr, sig->gr_daddr, sig->gr_sport,
59006 + sig->gr_dport)) {
59007 + last = match;
59008 + match = match->next;
59009 + }
59010 +
59011 + if (match) {
59012 + if (last)
59013 + last->next = match->next;
59014 + else
59015 + gr_conn_table[index] = NULL;
59016 + kfree(match);
59017 + }
59018 +
59019 + return;
59020 +}
59021 +
59022 +static struct signal_struct * gr_lookup_task_ip_table(__u32 saddr, __u32 daddr,
59023 + __u16 sport, __u16 dport)
59024 +{
59025 + struct conn_table_entry *match;
59026 + unsigned int index;
59027 +
59028 + index = conn_hash(saddr, daddr, sport, dport, gr_conn_table_size);
59029 +
59030 + match = gr_conn_table[index];
59031 + while (match && !conn_match(match->sig, saddr, daddr, sport, dport))
59032 + match = match->next;
59033 +
59034 + if (match)
59035 + return match->sig;
59036 + else
59037 + return NULL;
59038 +}
59039 +
59040 +#endif
59041 +
59042 +void gr_update_task_in_ip_table(struct task_struct *task, const struct inet_sock *inet)
59043 +{
59044 +#ifdef CONFIG_GRKERNSEC
59045 + struct signal_struct *sig = task->signal;
59046 + struct conn_table_entry *newent;
59047 +
59048 + newent = kmalloc(sizeof(struct conn_table_entry), GFP_ATOMIC);
59049 + if (newent == NULL)
59050 + return;
59051 + /* no bh lock needed since we are called with bh disabled */
59052 + spin_lock(&gr_conn_table_lock);
59053 + gr_del_task_from_ip_table_nolock(sig);
59054 + sig->gr_saddr = inet->inet_rcv_saddr;
59055 + sig->gr_daddr = inet->inet_daddr;
59056 + sig->gr_sport = inet->inet_sport;
59057 + sig->gr_dport = inet->inet_dport;
59058 + gr_add_to_task_ip_table_nolock(sig, newent);
59059 + spin_unlock(&gr_conn_table_lock);
59060 +#endif
59061 + return;
59062 +}
59063 +
59064 +void gr_del_task_from_ip_table(struct task_struct *task)
59065 +{
59066 +#ifdef CONFIG_GRKERNSEC
59067 + spin_lock_bh(&gr_conn_table_lock);
59068 + gr_del_task_from_ip_table_nolock(task->signal);
59069 + spin_unlock_bh(&gr_conn_table_lock);
59070 +#endif
59071 + return;
59072 +}
59073 +
59074 +void
59075 +gr_attach_curr_ip(const struct sock *sk)
59076 +{
59077 +#ifdef CONFIG_GRKERNSEC
59078 + struct signal_struct *p, *set;
59079 + const struct inet_sock *inet = inet_sk(sk);
59080 +
59081 + if (unlikely(sk->sk_protocol != IPPROTO_TCP))
59082 + return;
59083 +
59084 + set = current->signal;
59085 +
59086 + spin_lock_bh(&gr_conn_table_lock);
59087 + p = gr_lookup_task_ip_table(inet->inet_daddr, inet->inet_rcv_saddr,
59088 + inet->inet_dport, inet->inet_sport);
59089 + if (unlikely(p != NULL)) {
59090 + set->curr_ip = p->curr_ip;
59091 + set->used_accept = 1;
59092 + gr_del_task_from_ip_table_nolock(p);
59093 + spin_unlock_bh(&gr_conn_table_lock);
59094 + return;
59095 + }
59096 + spin_unlock_bh(&gr_conn_table_lock);
59097 +
59098 + set->curr_ip = inet->inet_daddr;
59099 + set->used_accept = 1;
59100 +#endif
59101 + return;
59102 +}
59103 +
59104 +int
59105 +gr_handle_sock_all(const int family, const int type, const int protocol)
59106 +{
59107 +#ifdef CONFIG_GRKERNSEC_SOCKET_ALL
59108 + if (grsec_enable_socket_all && in_group_p(grsec_socket_all_gid) &&
59109 + (family != AF_UNIX)) {
59110 + if (family == AF_INET)
59111 + gr_log_str3(GR_DONT_AUDIT, GR_SOCK_MSG, gr_sockfamily_to_name(family), gr_socktype_to_name(type), gr_proto_to_name(protocol));
59112 + else
59113 + gr_log_str2_int(GR_DONT_AUDIT, GR_SOCK_NOINET_MSG, gr_sockfamily_to_name(family), gr_socktype_to_name(type), protocol);
59114 + return -EACCES;
59115 + }
59116 +#endif
59117 + return 0;
59118 +}
59119 +
59120 +int
59121 +gr_handle_sock_server(const struct sockaddr *sck)
59122 +{
59123 +#ifdef CONFIG_GRKERNSEC_SOCKET_SERVER
59124 + if (grsec_enable_socket_server &&
59125 + in_group_p(grsec_socket_server_gid) &&
59126 + sck && (sck->sa_family != AF_UNIX) &&
59127 + (sck->sa_family != AF_LOCAL)) {
59128 + gr_log_noargs(GR_DONT_AUDIT, GR_BIND_MSG);
59129 + return -EACCES;
59130 + }
59131 +#endif
59132 + return 0;
59133 +}
59134 +
59135 +int
59136 +gr_handle_sock_server_other(const struct sock *sck)
59137 +{
59138 +#ifdef CONFIG_GRKERNSEC_SOCKET_SERVER
59139 + if (grsec_enable_socket_server &&
59140 + in_group_p(grsec_socket_server_gid) &&
59141 + sck && (sck->sk_family != AF_UNIX) &&
59142 + (sck->sk_family != AF_LOCAL)) {
59143 + gr_log_noargs(GR_DONT_AUDIT, GR_BIND_MSG);
59144 + return -EACCES;
59145 + }
59146 +#endif
59147 + return 0;
59148 +}
59149 +
59150 +int
59151 +gr_handle_sock_client(const struct sockaddr *sck)
59152 +{
59153 +#ifdef CONFIG_GRKERNSEC_SOCKET_CLIENT
59154 + if (grsec_enable_socket_client && in_group_p(grsec_socket_client_gid) &&
59155 + sck && (sck->sa_family != AF_UNIX) &&
59156 + (sck->sa_family != AF_LOCAL)) {
59157 + gr_log_noargs(GR_DONT_AUDIT, GR_CONNECT_MSG);
59158 + return -EACCES;
59159 + }
59160 +#endif
59161 + return 0;
59162 +}
59163 diff --git a/grsecurity/grsec_sysctl.c b/grsecurity/grsec_sysctl.c
59164 new file mode 100644
59165 index 0000000..f55ef0f
59166 --- /dev/null
59167 +++ b/grsecurity/grsec_sysctl.c
59168 @@ -0,0 +1,469 @@
59169 +#include <linux/kernel.h>
59170 +#include <linux/sched.h>
59171 +#include <linux/sysctl.h>
59172 +#include <linux/grsecurity.h>
59173 +#include <linux/grinternal.h>
59174 +
59175 +int
59176 +gr_handle_sysctl_mod(const char *dirname, const char *name, const int op)
59177 +{
59178 +#ifdef CONFIG_GRKERNSEC_SYSCTL
59179 + if (dirname == NULL || name == NULL)
59180 + return 0;
59181 + if (!strcmp(dirname, "grsecurity") && grsec_lock && (op & MAY_WRITE)) {
59182 + gr_log_str(GR_DONT_AUDIT, GR_SYSCTL_MSG, name);
59183 + return -EACCES;
59184 + }
59185 +#endif
59186 + return 0;
59187 +}
59188 +
59189 +#ifdef CONFIG_GRKERNSEC_ROFS
59190 +static int __maybe_unused one = 1;
59191 +#endif
59192 +
59193 +#if defined(CONFIG_GRKERNSEC_SYSCTL) || defined(CONFIG_GRKERNSEC_ROFS)
59194 +struct ctl_table grsecurity_table[] = {
59195 +#ifdef CONFIG_GRKERNSEC_SYSCTL
59196 +#ifdef CONFIG_GRKERNSEC_SYSCTL_DISTRO
59197 +#ifdef CONFIG_GRKERNSEC_IO
59198 + {
59199 + .procname = "disable_priv_io",
59200 + .data = &grsec_disable_privio,
59201 + .maxlen = sizeof(int),
59202 + .mode = 0600,
59203 + .proc_handler = &proc_dointvec,
59204 + },
59205 +#endif
59206 +#endif
59207 +#ifdef CONFIG_GRKERNSEC_LINK
59208 + {
59209 + .procname = "linking_restrictions",
59210 + .data = &grsec_enable_link,
59211 + .maxlen = sizeof(int),
59212 + .mode = 0600,
59213 + .proc_handler = &proc_dointvec,
59214 + },
59215 +#endif
59216 +#ifdef CONFIG_GRKERNSEC_SYMLINKOWN
59217 + {
59218 + .procname = "enforce_symlinksifowner",
59219 + .data = &grsec_enable_symlinkown,
59220 + .maxlen = sizeof(int),
59221 + .mode = 0600,
59222 + .proc_handler = &proc_dointvec,
59223 + },
59224 + {
59225 + .procname = "symlinkown_gid",
59226 + .data = &grsec_symlinkown_gid,
59227 + .maxlen = sizeof(int),
59228 + .mode = 0600,
59229 + .proc_handler = &proc_dointvec,
59230 + },
59231 +#endif
59232 +#ifdef CONFIG_GRKERNSEC_BRUTE
59233 + {
59234 + .procname = "deter_bruteforce",
59235 + .data = &grsec_enable_brute,
59236 + .maxlen = sizeof(int),
59237 + .mode = 0600,
59238 + .proc_handler = &proc_dointvec,
59239 + },
59240 +#endif
59241 +#ifdef CONFIG_GRKERNSEC_FIFO
59242 + {
59243 + .procname = "fifo_restrictions",
59244 + .data = &grsec_enable_fifo,
59245 + .maxlen = sizeof(int),
59246 + .mode = 0600,
59247 + .proc_handler = &proc_dointvec,
59248 + },
59249 +#endif
59250 +#ifdef CONFIG_GRKERNSEC_PTRACE_READEXEC
59251 + {
59252 + .procname = "ptrace_readexec",
59253 + .data = &grsec_enable_ptrace_readexec,
59254 + .maxlen = sizeof(int),
59255 + .mode = 0600,
59256 + .proc_handler = &proc_dointvec,
59257 + },
59258 +#endif
59259 +#ifdef CONFIG_GRKERNSEC_SETXID
59260 + {
59261 + .procname = "consistent_setxid",
59262 + .data = &grsec_enable_setxid,
59263 + .maxlen = sizeof(int),
59264 + .mode = 0600,
59265 + .proc_handler = &proc_dointvec,
59266 + },
59267 +#endif
59268 +#ifdef CONFIG_GRKERNSEC_BLACKHOLE
59269 + {
59270 + .procname = "ip_blackhole",
59271 + .data = &grsec_enable_blackhole,
59272 + .maxlen = sizeof(int),
59273 + .mode = 0600,
59274 + .proc_handler = &proc_dointvec,
59275 + },
59276 + {
59277 + .procname = "lastack_retries",
59278 + .data = &grsec_lastack_retries,
59279 + .maxlen = sizeof(int),
59280 + .mode = 0600,
59281 + .proc_handler = &proc_dointvec,
59282 + },
59283 +#endif
59284 +#ifdef CONFIG_GRKERNSEC_EXECLOG
59285 + {
59286 + .procname = "exec_logging",
59287 + .data = &grsec_enable_execlog,
59288 + .maxlen = sizeof(int),
59289 + .mode = 0600,
59290 + .proc_handler = &proc_dointvec,
59291 + },
59292 +#endif
59293 +#ifdef CONFIG_GRKERNSEC_RWXMAP_LOG
59294 + {
59295 + .procname = "rwxmap_logging",
59296 + .data = &grsec_enable_log_rwxmaps,
59297 + .maxlen = sizeof(int),
59298 + .mode = 0600,
59299 + .proc_handler = &proc_dointvec,
59300 + },
59301 +#endif
59302 +#ifdef CONFIG_GRKERNSEC_SIGNAL
59303 + {
59304 + .procname = "signal_logging",
59305 + .data = &grsec_enable_signal,
59306 + .maxlen = sizeof(int),
59307 + .mode = 0600,
59308 + .proc_handler = &proc_dointvec,
59309 + },
59310 +#endif
59311 +#ifdef CONFIG_GRKERNSEC_FORKFAIL
59312 + {
59313 + .procname = "forkfail_logging",
59314 + .data = &grsec_enable_forkfail,
59315 + .maxlen = sizeof(int),
59316 + .mode = 0600,
59317 + .proc_handler = &proc_dointvec,
59318 + },
59319 +#endif
59320 +#ifdef CONFIG_GRKERNSEC_TIME
59321 + {
59322 + .procname = "timechange_logging",
59323 + .data = &grsec_enable_time,
59324 + .maxlen = sizeof(int),
59325 + .mode = 0600,
59326 + .proc_handler = &proc_dointvec,
59327 + },
59328 +#endif
59329 +#ifdef CONFIG_GRKERNSEC_CHROOT_SHMAT
59330 + {
59331 + .procname = "chroot_deny_shmat",
59332 + .data = &grsec_enable_chroot_shmat,
59333 + .maxlen = sizeof(int),
59334 + .mode = 0600,
59335 + .proc_handler = &proc_dointvec,
59336 + },
59337 +#endif
59338 +#ifdef CONFIG_GRKERNSEC_CHROOT_UNIX
59339 + {
59340 + .procname = "chroot_deny_unix",
59341 + .data = &grsec_enable_chroot_unix,
59342 + .maxlen = sizeof(int),
59343 + .mode = 0600,
59344 + .proc_handler = &proc_dointvec,
59345 + },
59346 +#endif
59347 +#ifdef CONFIG_GRKERNSEC_CHROOT_MOUNT
59348 + {
59349 + .procname = "chroot_deny_mount",
59350 + .data = &grsec_enable_chroot_mount,
59351 + .maxlen = sizeof(int),
59352 + .mode = 0600,
59353 + .proc_handler = &proc_dointvec,
59354 + },
59355 +#endif
59356 +#ifdef CONFIG_GRKERNSEC_CHROOT_FCHDIR
59357 + {
59358 + .procname = "chroot_deny_fchdir",
59359 + .data = &grsec_enable_chroot_fchdir,
59360 + .maxlen = sizeof(int),
59361 + .mode = 0600,
59362 + .proc_handler = &proc_dointvec,
59363 + },
59364 +#endif
59365 +#ifdef CONFIG_GRKERNSEC_CHROOT_DOUBLE
59366 + {
59367 + .procname = "chroot_deny_chroot",
59368 + .data = &grsec_enable_chroot_double,
59369 + .maxlen = sizeof(int),
59370 + .mode = 0600,
59371 + .proc_handler = &proc_dointvec,
59372 + },
59373 +#endif
59374 +#ifdef CONFIG_GRKERNSEC_CHROOT_PIVOT
59375 + {
59376 + .procname = "chroot_deny_pivot",
59377 + .data = &grsec_enable_chroot_pivot,
59378 + .maxlen = sizeof(int),
59379 + .mode = 0600,
59380 + .proc_handler = &proc_dointvec,
59381 + },
59382 +#endif
59383 +#ifdef CONFIG_GRKERNSEC_CHROOT_CHDIR
59384 + {
59385 + .procname = "chroot_enforce_chdir",
59386 + .data = &grsec_enable_chroot_chdir,
59387 + .maxlen = sizeof(int),
59388 + .mode = 0600,
59389 + .proc_handler = &proc_dointvec,
59390 + },
59391 +#endif
59392 +#ifdef CONFIG_GRKERNSEC_CHROOT_CHMOD
59393 + {
59394 + .procname = "chroot_deny_chmod",
59395 + .data = &grsec_enable_chroot_chmod,
59396 + .maxlen = sizeof(int),
59397 + .mode = 0600,
59398 + .proc_handler = &proc_dointvec,
59399 + },
59400 +#endif
59401 +#ifdef CONFIG_GRKERNSEC_CHROOT_MKNOD
59402 + {
59403 + .procname = "chroot_deny_mknod",
59404 + .data = &grsec_enable_chroot_mknod,
59405 + .maxlen = sizeof(int),
59406 + .mode = 0600,
59407 + .proc_handler = &proc_dointvec,
59408 + },
59409 +#endif
59410 +#ifdef CONFIG_GRKERNSEC_CHROOT_NICE
59411 + {
59412 + .procname = "chroot_restrict_nice",
59413 + .data = &grsec_enable_chroot_nice,
59414 + .maxlen = sizeof(int),
59415 + .mode = 0600,
59416 + .proc_handler = &proc_dointvec,
59417 + },
59418 +#endif
59419 +#ifdef CONFIG_GRKERNSEC_CHROOT_EXECLOG
59420 + {
59421 + .procname = "chroot_execlog",
59422 + .data = &grsec_enable_chroot_execlog,
59423 + .maxlen = sizeof(int),
59424 + .mode = 0600,
59425 + .proc_handler = &proc_dointvec,
59426 + },
59427 +#endif
59428 +#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS
59429 + {
59430 + .procname = "chroot_caps",
59431 + .data = &grsec_enable_chroot_caps,
59432 + .maxlen = sizeof(int),
59433 + .mode = 0600,
59434 + .proc_handler = &proc_dointvec,
59435 + },
59436 +#endif
59437 +#ifdef CONFIG_GRKERNSEC_CHROOT_SYSCTL
59438 + {
59439 + .procname = "chroot_deny_sysctl",
59440 + .data = &grsec_enable_chroot_sysctl,
59441 + .maxlen = sizeof(int),
59442 + .mode = 0600,
59443 + .proc_handler = &proc_dointvec,
59444 + },
59445 +#endif
59446 +#ifdef CONFIG_GRKERNSEC_TPE
59447 + {
59448 + .procname = "tpe",
59449 + .data = &grsec_enable_tpe,
59450 + .maxlen = sizeof(int),
59451 + .mode = 0600,
59452 + .proc_handler = &proc_dointvec,
59453 + },
59454 + {
59455 + .procname = "tpe_gid",
59456 + .data = &grsec_tpe_gid,
59457 + .maxlen = sizeof(int),
59458 + .mode = 0600,
59459 + .proc_handler = &proc_dointvec,
59460 + },
59461 +#endif
59462 +#ifdef CONFIG_GRKERNSEC_TPE_INVERT
59463 + {
59464 + .procname = "tpe_invert",
59465 + .data = &grsec_enable_tpe_invert,
59466 + .maxlen = sizeof(int),
59467 + .mode = 0600,
59468 + .proc_handler = &proc_dointvec,
59469 + },
59470 +#endif
59471 +#ifdef CONFIG_GRKERNSEC_TPE_ALL
59472 + {
59473 + .procname = "tpe_restrict_all",
59474 + .data = &grsec_enable_tpe_all,
59475 + .maxlen = sizeof(int),
59476 + .mode = 0600,
59477 + .proc_handler = &proc_dointvec,
59478 + },
59479 +#endif
59480 +#ifdef CONFIG_GRKERNSEC_SOCKET_ALL
59481 + {
59482 + .procname = "socket_all",
59483 + .data = &grsec_enable_socket_all,
59484 + .maxlen = sizeof(int),
59485 + .mode = 0600,
59486 + .proc_handler = &proc_dointvec,
59487 + },
59488 + {
59489 + .procname = "socket_all_gid",
59490 + .data = &grsec_socket_all_gid,
59491 + .maxlen = sizeof(int),
59492 + .mode = 0600,
59493 + .proc_handler = &proc_dointvec,
59494 + },
59495 +#endif
59496 +#ifdef CONFIG_GRKERNSEC_SOCKET_CLIENT
59497 + {
59498 + .procname = "socket_client",
59499 + .data = &grsec_enable_socket_client,
59500 + .maxlen = sizeof(int),
59501 + .mode = 0600,
59502 + .proc_handler = &proc_dointvec,
59503 + },
59504 + {
59505 + .procname = "socket_client_gid",
59506 + .data = &grsec_socket_client_gid,
59507 + .maxlen = sizeof(int),
59508 + .mode = 0600,
59509 + .proc_handler = &proc_dointvec,
59510 + },
59511 +#endif
59512 +#ifdef CONFIG_GRKERNSEC_SOCKET_SERVER
59513 + {
59514 + .procname = "socket_server",
59515 + .data = &grsec_enable_socket_server,
59516 + .maxlen = sizeof(int),
59517 + .mode = 0600,
59518 + .proc_handler = &proc_dointvec,
59519 + },
59520 + {
59521 + .procname = "socket_server_gid",
59522 + .data = &grsec_socket_server_gid,
59523 + .maxlen = sizeof(int),
59524 + .mode = 0600,
59525 + .proc_handler = &proc_dointvec,
59526 + },
59527 +#endif
59528 +#ifdef CONFIG_GRKERNSEC_AUDIT_GROUP
59529 + {
59530 + .procname = "audit_group",
59531 + .data = &grsec_enable_group,
59532 + .maxlen = sizeof(int),
59533 + .mode = 0600,
59534 + .proc_handler = &proc_dointvec,
59535 + },
59536 + {
59537 + .procname = "audit_gid",
59538 + .data = &grsec_audit_gid,
59539 + .maxlen = sizeof(int),
59540 + .mode = 0600,
59541 + .proc_handler = &proc_dointvec,
59542 + },
59543 +#endif
59544 +#ifdef CONFIG_GRKERNSEC_AUDIT_CHDIR
59545 + {
59546 + .procname = "audit_chdir",
59547 + .data = &grsec_enable_chdir,
59548 + .maxlen = sizeof(int),
59549 + .mode = 0600,
59550 + .proc_handler = &proc_dointvec,
59551 + },
59552 +#endif
59553 +#ifdef CONFIG_GRKERNSEC_AUDIT_MOUNT
59554 + {
59555 + .procname = "audit_mount",
59556 + .data = &grsec_enable_mount,
59557 + .maxlen = sizeof(int),
59558 + .mode = 0600,
59559 + .proc_handler = &proc_dointvec,
59560 + },
59561 +#endif
59562 +#ifdef CONFIG_GRKERNSEC_AUDIT_TEXTREL
59563 + {
59564 + .procname = "audit_textrel",
59565 + .data = &grsec_enable_audit_textrel,
59566 + .maxlen = sizeof(int),
59567 + .mode = 0600,
59568 + .proc_handler = &proc_dointvec,
59569 + },
59570 +#endif
59571 +#ifdef CONFIG_GRKERNSEC_DMESG
59572 + {
59573 + .procname = "dmesg",
59574 + .data = &grsec_enable_dmesg,
59575 + .maxlen = sizeof(int),
59576 + .mode = 0600,
59577 + .proc_handler = &proc_dointvec,
59578 + },
59579 +#endif
59580 +#ifdef CONFIG_GRKERNSEC_CHROOT_FINDTASK
59581 + {
59582 + .procname = "chroot_findtask",
59583 + .data = &grsec_enable_chroot_findtask,
59584 + .maxlen = sizeof(int),
59585 + .mode = 0600,
59586 + .proc_handler = &proc_dointvec,
59587 + },
59588 +#endif
59589 +#ifdef CONFIG_GRKERNSEC_RESLOG
59590 + {
59591 + .procname = "resource_logging",
59592 + .data = &grsec_resource_logging,
59593 + .maxlen = sizeof(int),
59594 + .mode = 0600,
59595 + .proc_handler = &proc_dointvec,
59596 + },
59597 +#endif
59598 +#ifdef CONFIG_GRKERNSEC_AUDIT_PTRACE
59599 + {
59600 + .procname = "audit_ptrace",
59601 + .data = &grsec_enable_audit_ptrace,
59602 + .maxlen = sizeof(int),
59603 + .mode = 0600,
59604 + .proc_handler = &proc_dointvec,
59605 + },
59606 +#endif
59607 +#ifdef CONFIG_GRKERNSEC_HARDEN_PTRACE
59608 + {
59609 + .procname = "harden_ptrace",
59610 + .data = &grsec_enable_harden_ptrace,
59611 + .maxlen = sizeof(int),
59612 + .mode = 0600,
59613 + .proc_handler = &proc_dointvec,
59614 + },
59615 +#endif
59616 + {
59617 + .procname = "grsec_lock",
59618 + .data = &grsec_lock,
59619 + .maxlen = sizeof(int),
59620 + .mode = 0600,
59621 + .proc_handler = &proc_dointvec,
59622 + },
59623 +#endif
59624 +#ifdef CONFIG_GRKERNSEC_ROFS
59625 + {
59626 + .procname = "romount_protect",
59627 + .data = &grsec_enable_rofs,
59628 + .maxlen = sizeof(int),
59629 + .mode = 0600,
59630 + .proc_handler = &proc_dointvec_minmax,
59631 + .extra1 = &one,
59632 + .extra2 = &one,
59633 + },
59634 +#endif
59635 + { }
59636 +};
59637 +#endif
59638 diff --git a/grsecurity/grsec_time.c b/grsecurity/grsec_time.c
59639 new file mode 100644
59640 index 0000000..0dc13c3
59641 --- /dev/null
59642 +++ b/grsecurity/grsec_time.c
59643 @@ -0,0 +1,16 @@
59644 +#include <linux/kernel.h>
59645 +#include <linux/sched.h>
59646 +#include <linux/grinternal.h>
59647 +#include <linux/module.h>
59648 +
59649 +void
59650 +gr_log_timechange(void)
59651 +{
59652 +#ifdef CONFIG_GRKERNSEC_TIME
59653 + if (grsec_enable_time)
59654 + gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_TIME_MSG);
59655 +#endif
59656 + return;
59657 +}
59658 +
59659 +EXPORT_SYMBOL(gr_log_timechange);
59660 diff --git a/grsecurity/grsec_tpe.c b/grsecurity/grsec_tpe.c
59661 new file mode 100644
59662 index 0000000..07e0dc0
59663 --- /dev/null
59664 +++ b/grsecurity/grsec_tpe.c
59665 @@ -0,0 +1,73 @@
59666 +#include <linux/kernel.h>
59667 +#include <linux/sched.h>
59668 +#include <linux/file.h>
59669 +#include <linux/fs.h>
59670 +#include <linux/grinternal.h>
59671 +
59672 +extern int gr_acl_tpe_check(void);
59673 +
59674 +int
59675 +gr_tpe_allow(const struct file *file)
59676 +{
59677 +#ifdef CONFIG_GRKERNSEC
59678 + struct inode *inode = file->f_path.dentry->d_parent->d_inode;
59679 + const struct cred *cred = current_cred();
59680 + char *msg = NULL;
59681 + char *msg2 = NULL;
59682 +
59683 + // never restrict root
59684 + if (!cred->uid)
59685 + return 1;
59686 +
59687 + if (grsec_enable_tpe) {
59688 +#ifdef CONFIG_GRKERNSEC_TPE_INVERT
59689 + if (grsec_enable_tpe_invert && !in_group_p(grsec_tpe_gid))
59690 + msg = "not being in trusted group";
59691 + else if (!grsec_enable_tpe_invert && in_group_p(grsec_tpe_gid))
59692 + msg = "being in untrusted group";
59693 +#else
59694 + if (in_group_p(grsec_tpe_gid))
59695 + msg = "being in untrusted group";
59696 +#endif
59697 + }
59698 + if (!msg && gr_acl_tpe_check())
59699 + msg = "being in untrusted role";
59700 +
59701 + // not in any affected group/role
59702 + if (!msg)
59703 + goto next_check;
59704 +
59705 + if (inode->i_uid)
59706 + msg2 = "file in non-root-owned directory";
59707 + else if (inode->i_mode & S_IWOTH)
59708 + msg2 = "file in world-writable directory";
59709 + else if (inode->i_mode & S_IWGRP)
59710 + msg2 = "file in group-writable directory";
59711 +
59712 + if (msg && msg2) {
59713 + char fullmsg[70] = {0};
59714 + snprintf(fullmsg, sizeof(fullmsg)-1, "%s and %s", msg, msg2);
59715 + gr_log_str_fs(GR_DONT_AUDIT, GR_EXEC_TPE_MSG, fullmsg, file->f_path.dentry, file->f_path.mnt);
59716 + return 0;
59717 + }
59718 + msg = NULL;
59719 +next_check:
59720 +#ifdef CONFIG_GRKERNSEC_TPE_ALL
59721 + if (!grsec_enable_tpe || !grsec_enable_tpe_all)
59722 + return 1;
59723 +
59724 + if (inode->i_uid && (inode->i_uid != cred->uid))
59725 + msg = "directory not owned by user";
59726 + else if (inode->i_mode & S_IWOTH)
59727 + msg = "file in world-writable directory";
59728 + else if (inode->i_mode & S_IWGRP)
59729 + msg = "file in group-writable directory";
59730 +
59731 + if (msg) {
59732 + gr_log_str_fs(GR_DONT_AUDIT, GR_EXEC_TPE_MSG, msg, file->f_path.dentry, file->f_path.mnt);
59733 + return 0;
59734 + }
59735 +#endif
59736 +#endif
59737 + return 1;
59738 +}
59739 diff --git a/grsecurity/grsum.c b/grsecurity/grsum.c
59740 new file mode 100644
59741 index 0000000..9f7b1ac
59742 --- /dev/null
59743 +++ b/grsecurity/grsum.c
59744 @@ -0,0 +1,61 @@
59745 +#include <linux/err.h>
59746 +#include <linux/kernel.h>
59747 +#include <linux/sched.h>
59748 +#include <linux/mm.h>
59749 +#include <linux/scatterlist.h>
59750 +#include <linux/crypto.h>
59751 +#include <linux/gracl.h>
59752 +
59753 +
59754 +#if !defined(CONFIG_CRYPTO) || defined(CONFIG_CRYPTO_MODULE) || !defined(CONFIG_CRYPTO_SHA256) || defined(CONFIG_CRYPTO_SHA256_MODULE)
59755 +#error "crypto and sha256 must be built into the kernel"
59756 +#endif
59757 +
59758 +int
59759 +chkpw(struct gr_arg *entry, unsigned char *salt, unsigned char *sum)
59760 +{
59761 + char *p;
59762 + struct crypto_hash *tfm;
59763 + struct hash_desc desc;
59764 + struct scatterlist sg;
59765 + unsigned char temp_sum[GR_SHA_LEN];
59766 + volatile int retval = 0;
59767 + volatile int dummy = 0;
59768 + unsigned int i;
59769 +
59770 + sg_init_table(&sg, 1);
59771 +
59772 + tfm = crypto_alloc_hash("sha256", 0, CRYPTO_ALG_ASYNC);
59773 + if (IS_ERR(tfm)) {
59774 + /* should never happen, since sha256 should be built in */
59775 + return 1;
59776 + }
59777 +
59778 + desc.tfm = tfm;
59779 + desc.flags = 0;
59780 +
59781 + crypto_hash_init(&desc);
59782 +
59783 + p = salt;
59784 + sg_set_buf(&sg, p, GR_SALT_LEN);
59785 + crypto_hash_update(&desc, &sg, sg.length);
59786 +
59787 + p = entry->pw;
59788 + sg_set_buf(&sg, p, strlen(p));
59789 +
59790 + crypto_hash_update(&desc, &sg, sg.length);
59791 +
59792 + crypto_hash_final(&desc, temp_sum);
59793 +
59794 + memset(entry->pw, 0, GR_PW_LEN);
59795 +
59796 + for (i = 0; i < GR_SHA_LEN; i++)
59797 + if (sum[i] != temp_sum[i])
59798 + retval = 1;
59799 + else
59800 + dummy = 1; // waste a cycle
59801 +
59802 + crypto_free_hash(tfm);
59803 +
59804 + return retval;
59805 +}
59806 diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
59807 index 9e6e1c6..d47b906 100644
59808 --- a/include/acpi/acpi_bus.h
59809 +++ b/include/acpi/acpi_bus.h
59810 @@ -138,7 +138,7 @@ struct acpi_device_ops {
59811 acpi_op_bind bind;
59812 acpi_op_unbind unbind;
59813 acpi_op_notify notify;
59814 -};
59815 +} __no_const;
59816
59817 #define ACPI_DRIVER_ALL_NOTIFY_EVENTS 0x1 /* system AND device events */
59818
59819 diff --git a/include/asm-generic/atomic-long.h b/include/asm-generic/atomic-long.h
59820 index b7babf0..3ba8aee 100644
59821 --- a/include/asm-generic/atomic-long.h
59822 +++ b/include/asm-generic/atomic-long.h
59823 @@ -22,6 +22,12 @@
59824
59825 typedef atomic64_t atomic_long_t;
59826
59827 +#ifdef CONFIG_PAX_REFCOUNT
59828 +typedef atomic64_unchecked_t atomic_long_unchecked_t;
59829 +#else
59830 +typedef atomic64_t atomic_long_unchecked_t;
59831 +#endif
59832 +
59833 #define ATOMIC_LONG_INIT(i) ATOMIC64_INIT(i)
59834
59835 static inline long atomic_long_read(atomic_long_t *l)
59836 @@ -31,6 +37,15 @@ static inline long atomic_long_read(atomic_long_t *l)
59837 return (long)atomic64_read(v);
59838 }
59839
59840 +#ifdef CONFIG_PAX_REFCOUNT
59841 +static inline long atomic_long_read_unchecked(atomic_long_unchecked_t *l)
59842 +{
59843 + atomic64_unchecked_t *v = (atomic64_unchecked_t *)l;
59844 +
59845 + return (long)atomic64_read_unchecked(v);
59846 +}
59847 +#endif
59848 +
59849 static inline void atomic_long_set(atomic_long_t *l, long i)
59850 {
59851 atomic64_t *v = (atomic64_t *)l;
59852 @@ -38,6 +53,15 @@ static inline void atomic_long_set(atomic_long_t *l, long i)
59853 atomic64_set(v, i);
59854 }
59855
59856 +#ifdef CONFIG_PAX_REFCOUNT
59857 +static inline void atomic_long_set_unchecked(atomic_long_unchecked_t *l, long i)
59858 +{
59859 + atomic64_unchecked_t *v = (atomic64_unchecked_t *)l;
59860 +
59861 + atomic64_set_unchecked(v, i);
59862 +}
59863 +#endif
59864 +
59865 static inline void atomic_long_inc(atomic_long_t *l)
59866 {
59867 atomic64_t *v = (atomic64_t *)l;
59868 @@ -45,6 +69,15 @@ static inline void atomic_long_inc(atomic_long_t *l)
59869 atomic64_inc(v);
59870 }
59871
59872 +#ifdef CONFIG_PAX_REFCOUNT
59873 +static inline void atomic_long_inc_unchecked(atomic_long_unchecked_t *l)
59874 +{
59875 + atomic64_unchecked_t *v = (atomic64_unchecked_t *)l;
59876 +
59877 + atomic64_inc_unchecked(v);
59878 +}
59879 +#endif
59880 +
59881 static inline void atomic_long_dec(atomic_long_t *l)
59882 {
59883 atomic64_t *v = (atomic64_t *)l;
59884 @@ -52,6 +85,15 @@ static inline void atomic_long_dec(atomic_long_t *l)
59885 atomic64_dec(v);
59886 }
59887
59888 +#ifdef CONFIG_PAX_REFCOUNT
59889 +static inline void atomic_long_dec_unchecked(atomic_long_unchecked_t *l)
59890 +{
59891 + atomic64_unchecked_t *v = (atomic64_unchecked_t *)l;
59892 +
59893 + atomic64_dec_unchecked(v);
59894 +}
59895 +#endif
59896 +
59897 static inline void atomic_long_add(long i, atomic_long_t *l)
59898 {
59899 atomic64_t *v = (atomic64_t *)l;
59900 @@ -59,6 +101,15 @@ static inline void atomic_long_add(long i, atomic_long_t *l)
59901 atomic64_add(i, v);
59902 }
59903
59904 +#ifdef CONFIG_PAX_REFCOUNT
59905 +static inline void atomic_long_add_unchecked(long i, atomic_long_unchecked_t *l)
59906 +{
59907 + atomic64_unchecked_t *v = (atomic64_unchecked_t *)l;
59908 +
59909 + atomic64_add_unchecked(i, v);
59910 +}
59911 +#endif
59912 +
59913 static inline void atomic_long_sub(long i, atomic_long_t *l)
59914 {
59915 atomic64_t *v = (atomic64_t *)l;
59916 @@ -66,6 +117,15 @@ static inline void atomic_long_sub(long i, atomic_long_t *l)
59917 atomic64_sub(i, v);
59918 }
59919
59920 +#ifdef CONFIG_PAX_REFCOUNT
59921 +static inline void atomic_long_sub_unchecked(long i, atomic_long_unchecked_t *l)
59922 +{
59923 + atomic64_unchecked_t *v = (atomic64_unchecked_t *)l;
59924 +
59925 + atomic64_sub_unchecked(i, v);
59926 +}
59927 +#endif
59928 +
59929 static inline int atomic_long_sub_and_test(long i, atomic_long_t *l)
59930 {
59931 atomic64_t *v = (atomic64_t *)l;
59932 @@ -115,6 +175,15 @@ static inline long atomic_long_inc_return(atomic_long_t *l)
59933 return (long)atomic64_inc_return(v);
59934 }
59935
59936 +#ifdef CONFIG_PAX_REFCOUNT
59937 +static inline long atomic_long_inc_return_unchecked(atomic_long_unchecked_t *l)
59938 +{
59939 + atomic64_unchecked_t *v = (atomic64_unchecked_t *)l;
59940 +
59941 + return (long)atomic64_inc_return_unchecked(v);
59942 +}
59943 +#endif
59944 +
59945 static inline long atomic_long_dec_return(atomic_long_t *l)
59946 {
59947 atomic64_t *v = (atomic64_t *)l;
59948 @@ -140,6 +209,12 @@ static inline long atomic_long_add_unless(atomic_long_t *l, long a, long u)
59949
59950 typedef atomic_t atomic_long_t;
59951
59952 +#ifdef CONFIG_PAX_REFCOUNT
59953 +typedef atomic_unchecked_t atomic_long_unchecked_t;
59954 +#else
59955 +typedef atomic_t atomic_long_unchecked_t;
59956 +#endif
59957 +
59958 #define ATOMIC_LONG_INIT(i) ATOMIC_INIT(i)
59959 static inline long atomic_long_read(atomic_long_t *l)
59960 {
59961 @@ -148,6 +223,15 @@ static inline long atomic_long_read(atomic_long_t *l)
59962 return (long)atomic_read(v);
59963 }
59964
59965 +#ifdef CONFIG_PAX_REFCOUNT
59966 +static inline long atomic_long_read_unchecked(atomic_long_unchecked_t *l)
59967 +{
59968 + atomic_unchecked_t *v = (atomic_unchecked_t *)l;
59969 +
59970 + return (long)atomic_read_unchecked(v);
59971 +}
59972 +#endif
59973 +
59974 static inline void atomic_long_set(atomic_long_t *l, long i)
59975 {
59976 atomic_t *v = (atomic_t *)l;
59977 @@ -155,6 +239,15 @@ static inline void atomic_long_set(atomic_long_t *l, long i)
59978 atomic_set(v, i);
59979 }
59980
59981 +#ifdef CONFIG_PAX_REFCOUNT
59982 +static inline void atomic_long_set_unchecked(atomic_long_unchecked_t *l, long i)
59983 +{
59984 + atomic_unchecked_t *v = (atomic_unchecked_t *)l;
59985 +
59986 + atomic_set_unchecked(v, i);
59987 +}
59988 +#endif
59989 +
59990 static inline void atomic_long_inc(atomic_long_t *l)
59991 {
59992 atomic_t *v = (atomic_t *)l;
59993 @@ -162,6 +255,15 @@ static inline void atomic_long_inc(atomic_long_t *l)
59994 atomic_inc(v);
59995 }
59996
59997 +#ifdef CONFIG_PAX_REFCOUNT
59998 +static inline void atomic_long_inc_unchecked(atomic_long_unchecked_t *l)
59999 +{
60000 + atomic_unchecked_t *v = (atomic_unchecked_t *)l;
60001 +
60002 + atomic_inc_unchecked(v);
60003 +}
60004 +#endif
60005 +
60006 static inline void atomic_long_dec(atomic_long_t *l)
60007 {
60008 atomic_t *v = (atomic_t *)l;
60009 @@ -169,6 +271,15 @@ static inline void atomic_long_dec(atomic_long_t *l)
60010 atomic_dec(v);
60011 }
60012
60013 +#ifdef CONFIG_PAX_REFCOUNT
60014 +static inline void atomic_long_dec_unchecked(atomic_long_unchecked_t *l)
60015 +{
60016 + atomic_unchecked_t *v = (atomic_unchecked_t *)l;
60017 +
60018 + atomic_dec_unchecked(v);
60019 +}
60020 +#endif
60021 +
60022 static inline void atomic_long_add(long i, atomic_long_t *l)
60023 {
60024 atomic_t *v = (atomic_t *)l;
60025 @@ -176,6 +287,15 @@ static inline void atomic_long_add(long i, atomic_long_t *l)
60026 atomic_add(i, v);
60027 }
60028
60029 +#ifdef CONFIG_PAX_REFCOUNT
60030 +static inline void atomic_long_add_unchecked(long i, atomic_long_unchecked_t *l)
60031 +{
60032 + atomic_unchecked_t *v = (atomic_unchecked_t *)l;
60033 +
60034 + atomic_add_unchecked(i, v);
60035 +}
60036 +#endif
60037 +
60038 static inline void atomic_long_sub(long i, atomic_long_t *l)
60039 {
60040 atomic_t *v = (atomic_t *)l;
60041 @@ -183,6 +303,15 @@ static inline void atomic_long_sub(long i, atomic_long_t *l)
60042 atomic_sub(i, v);
60043 }
60044
60045 +#ifdef CONFIG_PAX_REFCOUNT
60046 +static inline void atomic_long_sub_unchecked(long i, atomic_long_unchecked_t *l)
60047 +{
60048 + atomic_unchecked_t *v = (atomic_unchecked_t *)l;
60049 +
60050 + atomic_sub_unchecked(i, v);
60051 +}
60052 +#endif
60053 +
60054 static inline int atomic_long_sub_and_test(long i, atomic_long_t *l)
60055 {
60056 atomic_t *v = (atomic_t *)l;
60057 @@ -232,6 +361,15 @@ static inline long atomic_long_inc_return(atomic_long_t *l)
60058 return (long)atomic_inc_return(v);
60059 }
60060
60061 +#ifdef CONFIG_PAX_REFCOUNT
60062 +static inline long atomic_long_inc_return_unchecked(atomic_long_unchecked_t *l)
60063 +{
60064 + atomic_unchecked_t *v = (atomic_unchecked_t *)l;
60065 +
60066 + return (long)atomic_inc_return_unchecked(v);
60067 +}
60068 +#endif
60069 +
60070 static inline long atomic_long_dec_return(atomic_long_t *l)
60071 {
60072 atomic_t *v = (atomic_t *)l;
60073 @@ -255,4 +393,55 @@ static inline long atomic_long_add_unless(atomic_long_t *l, long a, long u)
60074
60075 #endif /* BITS_PER_LONG == 64 */
60076
60077 +#ifdef CONFIG_PAX_REFCOUNT
60078 +static inline void pax_refcount_needs_these_functions(void)
60079 +{
60080 + atomic_read_unchecked((atomic_unchecked_t *)NULL);
60081 + atomic_set_unchecked((atomic_unchecked_t *)NULL, 0);
60082 + atomic_add_unchecked(0, (atomic_unchecked_t *)NULL);
60083 + atomic_sub_unchecked(0, (atomic_unchecked_t *)NULL);
60084 + atomic_inc_unchecked((atomic_unchecked_t *)NULL);
60085 + (void)atomic_inc_and_test_unchecked((atomic_unchecked_t *)NULL);
60086 + atomic_inc_return_unchecked((atomic_unchecked_t *)NULL);
60087 + atomic_add_return_unchecked(0, (atomic_unchecked_t *)NULL);
60088 + atomic_dec_unchecked((atomic_unchecked_t *)NULL);
60089 + atomic_cmpxchg_unchecked((atomic_unchecked_t *)NULL, 0, 0);
60090 + (void)atomic_xchg_unchecked((atomic_unchecked_t *)NULL, 0);
60091 +#ifdef CONFIG_X86
60092 + atomic_clear_mask_unchecked(0, NULL);
60093 + atomic_set_mask_unchecked(0, NULL);
60094 +#endif
60095 +
60096 + atomic_long_read_unchecked((atomic_long_unchecked_t *)NULL);
60097 + atomic_long_set_unchecked((atomic_long_unchecked_t *)NULL, 0);
60098 + atomic_long_add_unchecked(0, (atomic_long_unchecked_t *)NULL);
60099 + atomic_long_sub_unchecked(0, (atomic_long_unchecked_t *)NULL);
60100 + atomic_long_inc_unchecked((atomic_long_unchecked_t *)NULL);
60101 + atomic_long_inc_return_unchecked((atomic_long_unchecked_t *)NULL);
60102 + atomic_long_dec_unchecked((atomic_long_unchecked_t *)NULL);
60103 +}
60104 +#else
60105 +#define atomic_read_unchecked(v) atomic_read(v)
60106 +#define atomic_set_unchecked(v, i) atomic_set((v), (i))
60107 +#define atomic_add_unchecked(i, v) atomic_add((i), (v))
60108 +#define atomic_sub_unchecked(i, v) atomic_sub((i), (v))
60109 +#define atomic_inc_unchecked(v) atomic_inc(v)
60110 +#define atomic_inc_and_test_unchecked(v) atomic_inc_and_test(v)
60111 +#define atomic_inc_return_unchecked(v) atomic_inc_return(v)
60112 +#define atomic_add_return_unchecked(i, v) atomic_add_return((i), (v))
60113 +#define atomic_dec_unchecked(v) atomic_dec(v)
60114 +#define atomic_cmpxchg_unchecked(v, o, n) atomic_cmpxchg((v), (o), (n))
60115 +#define atomic_xchg_unchecked(v, i) atomic_xchg((v), (i))
60116 +#define atomic_clear_mask_unchecked(mask, v) atomic_clear_mask((mask), (v))
60117 +#define atomic_set_mask_unchecked(mask, v) atomic_set_mask((mask), (v))
60118 +
60119 +#define atomic_long_read_unchecked(v) atomic_long_read(v)
60120 +#define atomic_long_set_unchecked(v, i) atomic_long_set((v), (i))
60121 +#define atomic_long_add_unchecked(i, v) atomic_long_add((i), (v))
60122 +#define atomic_long_sub_unchecked(i, v) atomic_long_sub((i), (v))
60123 +#define atomic_long_inc_unchecked(v) atomic_long_inc(v)
60124 +#define atomic_long_inc_return_unchecked(v) atomic_long_inc_return(v)
60125 +#define atomic_long_dec_unchecked(v) atomic_long_dec(v)
60126 +#endif
60127 +
60128 #endif /* _ASM_GENERIC_ATOMIC_LONG_H */
60129 diff --git a/include/asm-generic/atomic.h b/include/asm-generic/atomic.h
60130 index 1ced641..c896ee8 100644
60131 --- a/include/asm-generic/atomic.h
60132 +++ b/include/asm-generic/atomic.h
60133 @@ -159,7 +159,7 @@ static inline int __atomic_add_unless(atomic_t *v, int a, int u)
60134 * Atomically clears the bits set in @mask from @v
60135 */
60136 #ifndef atomic_clear_mask
60137 -static inline void atomic_clear_mask(unsigned long mask, atomic_t *v)
60138 +static inline void atomic_clear_mask(unsigned int mask, atomic_t *v)
60139 {
60140 unsigned long flags;
60141
60142 diff --git a/include/asm-generic/atomic64.h b/include/asm-generic/atomic64.h
60143 index b18ce4f..2ee2843 100644
60144 --- a/include/asm-generic/atomic64.h
60145 +++ b/include/asm-generic/atomic64.h
60146 @@ -16,6 +16,8 @@ typedef struct {
60147 long long counter;
60148 } atomic64_t;
60149
60150 +typedef atomic64_t atomic64_unchecked_t;
60151 +
60152 #define ATOMIC64_INIT(i) { (i) }
60153
60154 extern long long atomic64_read(const atomic64_t *v);
60155 @@ -39,4 +41,14 @@ extern int atomic64_add_unless(atomic64_t *v, long long a, long long u);
60156 #define atomic64_dec_and_test(v) (atomic64_dec_return((v)) == 0)
60157 #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1LL, 0LL)
60158
60159 +#define atomic64_read_unchecked(v) atomic64_read(v)
60160 +#define atomic64_set_unchecked(v, i) atomic64_set((v), (i))
60161 +#define atomic64_add_unchecked(a, v) atomic64_add((a), (v))
60162 +#define atomic64_add_return_unchecked(a, v) atomic64_add_return((a), (v))
60163 +#define atomic64_sub_unchecked(a, v) atomic64_sub((a), (v))
60164 +#define atomic64_inc_unchecked(v) atomic64_inc(v)
60165 +#define atomic64_inc_return_unchecked(v) atomic64_inc_return(v)
60166 +#define atomic64_dec_unchecked(v) atomic64_dec(v)
60167 +#define atomic64_cmpxchg_unchecked(v, o, n) atomic64_cmpxchg((v), (o), (n))
60168 +
60169 #endif /* _ASM_GENERIC_ATOMIC64_H */
60170 diff --git a/include/asm-generic/cache.h b/include/asm-generic/cache.h
60171 index 1bfcfe5..e04c5c9 100644
60172 --- a/include/asm-generic/cache.h
60173 +++ b/include/asm-generic/cache.h
60174 @@ -6,7 +6,7 @@
60175 * cache lines need to provide their own cache.h.
60176 */
60177
60178 -#define L1_CACHE_SHIFT 5
60179 -#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
60180 +#define L1_CACHE_SHIFT 5UL
60181 +#define L1_CACHE_BYTES (1UL << L1_CACHE_SHIFT)
60182
60183 #endif /* __ASM_GENERIC_CACHE_H */
60184 diff --git a/include/asm-generic/emergency-restart.h b/include/asm-generic/emergency-restart.h
60185 index 0d68a1e..b74a761 100644
60186 --- a/include/asm-generic/emergency-restart.h
60187 +++ b/include/asm-generic/emergency-restart.h
60188 @@ -1,7 +1,7 @@
60189 #ifndef _ASM_GENERIC_EMERGENCY_RESTART_H
60190 #define _ASM_GENERIC_EMERGENCY_RESTART_H
60191
60192 -static inline void machine_emergency_restart(void)
60193 +static inline __noreturn void machine_emergency_restart(void)
60194 {
60195 machine_restart(NULL);
60196 }
60197 diff --git a/include/asm-generic/kmap_types.h b/include/asm-generic/kmap_types.h
60198 index 0232ccb..13d9165 100644
60199 --- a/include/asm-generic/kmap_types.h
60200 +++ b/include/asm-generic/kmap_types.h
60201 @@ -29,10 +29,11 @@ KMAP_D(16) KM_IRQ_PTE,
60202 KMAP_D(17) KM_NMI,
60203 KMAP_D(18) KM_NMI_PTE,
60204 KMAP_D(19) KM_KDB,
60205 +KMAP_D(20) KM_CLEARPAGE,
60206 /*
60207 * Remember to update debug_kmap_atomic() when adding new kmap types!
60208 */
60209 -KMAP_D(20) KM_TYPE_NR
60210 +KMAP_D(21) KM_TYPE_NR
60211 };
60212
60213 #undef KMAP_D
60214 diff --git a/include/asm-generic/local.h b/include/asm-generic/local.h
60215 index 9ceb03b..2efbcbd 100644
60216 --- a/include/asm-generic/local.h
60217 +++ b/include/asm-generic/local.h
60218 @@ -39,6 +39,7 @@ typedef struct
60219 #define local_add_return(i, l) atomic_long_add_return((i), (&(l)->a))
60220 #define local_sub_return(i, l) atomic_long_sub_return((i), (&(l)->a))
60221 #define local_inc_return(l) atomic_long_inc_return(&(l)->a)
60222 +#define local_dec_return(l) atomic_long_dec_return(&(l)->a)
60223
60224 #define local_cmpxchg(l, o, n) atomic_long_cmpxchg((&(l)->a), (o), (n))
60225 #define local_xchg(l, n) atomic_long_xchg((&(l)->a), (n))
60226 diff --git a/include/asm-generic/pgtable-nopmd.h b/include/asm-generic/pgtable-nopmd.h
60227 index 725612b..9cc513a 100644
60228 --- a/include/asm-generic/pgtable-nopmd.h
60229 +++ b/include/asm-generic/pgtable-nopmd.h
60230 @@ -1,14 +1,19 @@
60231 #ifndef _PGTABLE_NOPMD_H
60232 #define _PGTABLE_NOPMD_H
60233
60234 -#ifndef __ASSEMBLY__
60235 -
60236 #include <asm-generic/pgtable-nopud.h>
60237
60238 -struct mm_struct;
60239 -
60240 #define __PAGETABLE_PMD_FOLDED
60241
60242 +#define PMD_SHIFT PUD_SHIFT
60243 +#define PTRS_PER_PMD 1
60244 +#define PMD_SIZE (_AC(1,UL) << PMD_SHIFT)
60245 +#define PMD_MASK (~(PMD_SIZE-1))
60246 +
60247 +#ifndef __ASSEMBLY__
60248 +
60249 +struct mm_struct;
60250 +
60251 /*
60252 * Having the pmd type consist of a pud gets the size right, and allows
60253 * us to conceptually access the pud entry that this pmd is folded into
60254 @@ -16,11 +21,6 @@ struct mm_struct;
60255 */
60256 typedef struct { pud_t pud; } pmd_t;
60257
60258 -#define PMD_SHIFT PUD_SHIFT
60259 -#define PTRS_PER_PMD 1
60260 -#define PMD_SIZE (1UL << PMD_SHIFT)
60261 -#define PMD_MASK (~(PMD_SIZE-1))
60262 -
60263 /*
60264 * The "pud_xxx()" functions here are trivial for a folded two-level
60265 * setup: the pmd is never bad, and a pmd always exists (as it's folded
60266 diff --git a/include/asm-generic/pgtable-nopud.h b/include/asm-generic/pgtable-nopud.h
60267 index 810431d..0ec4804f 100644
60268 --- a/include/asm-generic/pgtable-nopud.h
60269 +++ b/include/asm-generic/pgtable-nopud.h
60270 @@ -1,10 +1,15 @@
60271 #ifndef _PGTABLE_NOPUD_H
60272 #define _PGTABLE_NOPUD_H
60273
60274 -#ifndef __ASSEMBLY__
60275 -
60276 #define __PAGETABLE_PUD_FOLDED
60277
60278 +#define PUD_SHIFT PGDIR_SHIFT
60279 +#define PTRS_PER_PUD 1
60280 +#define PUD_SIZE (_AC(1,UL) << PUD_SHIFT)
60281 +#define PUD_MASK (~(PUD_SIZE-1))
60282 +
60283 +#ifndef __ASSEMBLY__
60284 +
60285 /*
60286 * Having the pud type consist of a pgd gets the size right, and allows
60287 * us to conceptually access the pgd entry that this pud is folded into
60288 @@ -12,11 +17,6 @@
60289 */
60290 typedef struct { pgd_t pgd; } pud_t;
60291
60292 -#define PUD_SHIFT PGDIR_SHIFT
60293 -#define PTRS_PER_PUD 1
60294 -#define PUD_SIZE (1UL << PUD_SHIFT)
60295 -#define PUD_MASK (~(PUD_SIZE-1))
60296 -
60297 /*
60298 * The "pgd_xxx()" functions here are trivial for a folded two-level
60299 * setup: the pud is never bad, and a pud always exists (as it's folded
60300 @@ -29,6 +29,7 @@ static inline void pgd_clear(pgd_t *pgd) { }
60301 #define pud_ERROR(pud) (pgd_ERROR((pud).pgd))
60302
60303 #define pgd_populate(mm, pgd, pud) do { } while (0)
60304 +#define pgd_populate_kernel(mm, pgd, pud) do { } while (0)
60305 /*
60306 * (puds are folded into pgds so this doesn't get actually called,
60307 * but the define is needed for a generic inline function.)
60308 diff --git a/include/asm-generic/pgtable.h b/include/asm-generic/pgtable.h
60309 index ff4947b..f48183f 100644
60310 --- a/include/asm-generic/pgtable.h
60311 +++ b/include/asm-generic/pgtable.h
60312 @@ -530,6 +530,14 @@ static inline int pmd_trans_unstable(pmd_t *pmd)
60313 #endif
60314 }
60315
60316 +#ifndef __HAVE_ARCH_PAX_OPEN_KERNEL
60317 +static inline unsigned long pax_open_kernel(void) { return 0; }
60318 +#endif
60319 +
60320 +#ifndef __HAVE_ARCH_PAX_CLOSE_KERNEL
60321 +static inline unsigned long pax_close_kernel(void) { return 0; }
60322 +#endif
60323 +
60324 #endif /* CONFIG_MMU */
60325
60326 #endif /* !__ASSEMBLY__ */
60327 diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
60328 index 4e2e1cc..12c266b 100644
60329 --- a/include/asm-generic/vmlinux.lds.h
60330 +++ b/include/asm-generic/vmlinux.lds.h
60331 @@ -218,6 +218,7 @@
60332 .rodata : AT(ADDR(.rodata) - LOAD_OFFSET) { \
60333 VMLINUX_SYMBOL(__start_rodata) = .; \
60334 *(.rodata) *(.rodata.*) \
60335 + *(.data..read_only) \
60336 *(__vermagic) /* Kernel version magic */ \
60337 . = ALIGN(8); \
60338 VMLINUX_SYMBOL(__start___tracepoints_ptrs) = .; \
60339 @@ -716,17 +717,18 @@
60340 * section in the linker script will go there too. @phdr should have
60341 * a leading colon.
60342 *
60343 - * Note that this macros defines __per_cpu_load as an absolute symbol.
60344 + * Note that this macros defines per_cpu_load as an absolute symbol.
60345 * If there is no need to put the percpu section at a predetermined
60346 * address, use PERCPU_SECTION.
60347 */
60348 #define PERCPU_VADDR(cacheline, vaddr, phdr) \
60349 - VMLINUX_SYMBOL(__per_cpu_load) = .; \
60350 - .data..percpu vaddr : AT(VMLINUX_SYMBOL(__per_cpu_load) \
60351 + per_cpu_load = .; \
60352 + .data..percpu vaddr : AT(VMLINUX_SYMBOL(per_cpu_load) \
60353 - LOAD_OFFSET) { \
60354 + VMLINUX_SYMBOL(__per_cpu_load) = . + per_cpu_load; \
60355 PERCPU_INPUT(cacheline) \
60356 } phdr \
60357 - . = VMLINUX_SYMBOL(__per_cpu_load) + SIZEOF(.data..percpu);
60358 + . = VMLINUX_SYMBOL(per_cpu_load) + SIZEOF(.data..percpu);
60359
60360 /**
60361 * PERCPU_SECTION - define output section for percpu area, simple version
60362 diff --git a/include/drm/drmP.h b/include/drm/drmP.h
60363 index 31ad880..4e79884 100644
60364 --- a/include/drm/drmP.h
60365 +++ b/include/drm/drmP.h
60366 @@ -72,6 +72,7 @@
60367 #include <linux/workqueue.h>
60368 #include <linux/poll.h>
60369 #include <asm/pgalloc.h>
60370 +#include <asm/local.h>
60371 #include "drm.h"
60372
60373 #include <linux/idr.h>
60374 @@ -1074,7 +1075,7 @@ struct drm_device {
60375
60376 /** \name Usage Counters */
60377 /*@{ */
60378 - int open_count; /**< Outstanding files open */
60379 + local_t open_count; /**< Outstanding files open */
60380 atomic_t ioctl_count; /**< Outstanding IOCTLs pending */
60381 atomic_t vma_count; /**< Outstanding vma areas open */
60382 int buf_use; /**< Buffers in use -- cannot alloc */
60383 @@ -1085,7 +1086,7 @@ struct drm_device {
60384 /*@{ */
60385 unsigned long counters;
60386 enum drm_stat_type types[15];
60387 - atomic_t counts[15];
60388 + atomic_unchecked_t counts[15];
60389 /*@} */
60390
60391 struct list_head filelist;
60392 diff --git a/include/drm/drm_crtc_helper.h b/include/drm/drm_crtc_helper.h
60393 index 7988e55..ec974c9 100644
60394 --- a/include/drm/drm_crtc_helper.h
60395 +++ b/include/drm/drm_crtc_helper.h
60396 @@ -81,7 +81,7 @@ struct drm_crtc_helper_funcs {
60397
60398 /* disable crtc when not in use - more explicit than dpms off */
60399 void (*disable)(struct drm_crtc *crtc);
60400 -};
60401 +} __no_const;
60402
60403 /**
60404 * drm_encoder_helper_funcs - helper operations for encoders
60405 @@ -109,7 +109,7 @@ struct drm_encoder_helper_funcs {
60406 struct drm_connector *connector);
60407 /* disable encoder when not in use - more explicit than dpms off */
60408 void (*disable)(struct drm_encoder *encoder);
60409 -};
60410 +} __no_const;
60411
60412 /**
60413 * drm_connector_helper_funcs - helper operations for connectors
60414 diff --git a/include/drm/ttm/ttm_memory.h b/include/drm/ttm/ttm_memory.h
60415 index d6d1da4..fdd1ac5 100644
60416 --- a/include/drm/ttm/ttm_memory.h
60417 +++ b/include/drm/ttm/ttm_memory.h
60418 @@ -48,7 +48,7 @@
60419
60420 struct ttm_mem_shrink {
60421 int (*do_shrink) (struct ttm_mem_shrink *);
60422 -};
60423 +} __no_const;
60424
60425 /**
60426 * struct ttm_mem_global - Global memory accounting structure.
60427 diff --git a/include/linux/a.out.h b/include/linux/a.out.h
60428 index e86dfca..40cc55f 100644
60429 --- a/include/linux/a.out.h
60430 +++ b/include/linux/a.out.h
60431 @@ -39,6 +39,14 @@ enum machine_type {
60432 M_MIPS2 = 152 /* MIPS R6000/R4000 binary */
60433 };
60434
60435 +/* Constants for the N_FLAGS field */
60436 +#define F_PAX_PAGEEXEC 1 /* Paging based non-executable pages */
60437 +#define F_PAX_EMUTRAMP 2 /* Emulate trampolines */
60438 +#define F_PAX_MPROTECT 4 /* Restrict mprotect() */
60439 +#define F_PAX_RANDMMAP 8 /* Randomize mmap() base */
60440 +/*#define F_PAX_RANDEXEC 16*/ /* Randomize ET_EXEC base */
60441 +#define F_PAX_SEGMEXEC 32 /* Segmentation based non-executable pages */
60442 +
60443 #if !defined (N_MAGIC)
60444 #define N_MAGIC(exec) ((exec).a_info & 0xffff)
60445 #endif
60446 diff --git a/include/linux/atmdev.h b/include/linux/atmdev.h
60447 index 06fd4bb..1caec0d 100644
60448 --- a/include/linux/atmdev.h
60449 +++ b/include/linux/atmdev.h
60450 @@ -237,7 +237,7 @@ struct compat_atm_iobuf {
60451 #endif
60452
60453 struct k_atm_aal_stats {
60454 -#define __HANDLE_ITEM(i) atomic_t i
60455 +#define __HANDLE_ITEM(i) atomic_unchecked_t i
60456 __AAL_STAT_ITEMS
60457 #undef __HANDLE_ITEM
60458 };
60459 diff --git a/include/linux/binfmts.h b/include/linux/binfmts.h
60460 index 366422b..1fa7f84 100644
60461 --- a/include/linux/binfmts.h
60462 +++ b/include/linux/binfmts.h
60463 @@ -89,6 +89,7 @@ struct linux_binfmt {
60464 int (*load_binary)(struct linux_binprm *, struct pt_regs * regs);
60465 int (*load_shlib)(struct file *);
60466 int (*core_dump)(struct coredump_params *cprm);
60467 + void (*handle_mprotect)(struct vm_area_struct *vma, unsigned long newflags);
60468 unsigned long min_coredump; /* minimal dump size */
60469 };
60470
60471 diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
60472 index 07954b0..cb2ae71 100644
60473 --- a/include/linux/blkdev.h
60474 +++ b/include/linux/blkdev.h
60475 @@ -1393,7 +1393,7 @@ struct block_device_operations {
60476 /* this callback is with swap_lock and sometimes page table lock held */
60477 void (*swap_slot_free_notify) (struct block_device *, unsigned long);
60478 struct module *owner;
60479 -};
60480 +} __do_const;
60481
60482 extern int __blkdev_driver_ioctl(struct block_device *, fmode_t, unsigned int,
60483 unsigned long);
60484 diff --git a/include/linux/blktrace_api.h b/include/linux/blktrace_api.h
60485 index 4d1a074..88f929a 100644
60486 --- a/include/linux/blktrace_api.h
60487 +++ b/include/linux/blktrace_api.h
60488 @@ -162,7 +162,7 @@ struct blk_trace {
60489 struct dentry *dir;
60490 struct dentry *dropped_file;
60491 struct dentry *msg_file;
60492 - atomic_t dropped;
60493 + atomic_unchecked_t dropped;
60494 };
60495
60496 extern int blk_trace_ioctl(struct block_device *, unsigned, char __user *);
60497 diff --git a/include/linux/byteorder/little_endian.h b/include/linux/byteorder/little_endian.h
60498 index 83195fb..0b0f77d 100644
60499 --- a/include/linux/byteorder/little_endian.h
60500 +++ b/include/linux/byteorder/little_endian.h
60501 @@ -42,51 +42,51 @@
60502
60503 static inline __le64 __cpu_to_le64p(const __u64 *p)
60504 {
60505 - return (__force __le64)*p;
60506 + return (__force const __le64)*p;
60507 }
60508 static inline __u64 __le64_to_cpup(const __le64 *p)
60509 {
60510 - return (__force __u64)*p;
60511 + return (__force const __u64)*p;
60512 }
60513 static inline __le32 __cpu_to_le32p(const __u32 *p)
60514 {
60515 - return (__force __le32)*p;
60516 + return (__force const __le32)*p;
60517 }
60518 static inline __u32 __le32_to_cpup(const __le32 *p)
60519 {
60520 - return (__force __u32)*p;
60521 + return (__force const __u32)*p;
60522 }
60523 static inline __le16 __cpu_to_le16p(const __u16 *p)
60524 {
60525 - return (__force __le16)*p;
60526 + return (__force const __le16)*p;
60527 }
60528 static inline __u16 __le16_to_cpup(const __le16 *p)
60529 {
60530 - return (__force __u16)*p;
60531 + return (__force const __u16)*p;
60532 }
60533 static inline __be64 __cpu_to_be64p(const __u64 *p)
60534 {
60535 - return (__force __be64)__swab64p(p);
60536 + return (__force const __be64)__swab64p(p);
60537 }
60538 static inline __u64 __be64_to_cpup(const __be64 *p)
60539 {
60540 - return __swab64p((__u64 *)p);
60541 + return __swab64p((const __u64 *)p);
60542 }
60543 static inline __be32 __cpu_to_be32p(const __u32 *p)
60544 {
60545 - return (__force __be32)__swab32p(p);
60546 + return (__force const __be32)__swab32p(p);
60547 }
60548 static inline __u32 __be32_to_cpup(const __be32 *p)
60549 {
60550 - return __swab32p((__u32 *)p);
60551 + return __swab32p((const __u32 *)p);
60552 }
60553 static inline __be16 __cpu_to_be16p(const __u16 *p)
60554 {
60555 - return (__force __be16)__swab16p(p);
60556 + return (__force const __be16)__swab16p(p);
60557 }
60558 static inline __u16 __be16_to_cpup(const __be16 *p)
60559 {
60560 - return __swab16p((__u16 *)p);
60561 + return __swab16p((const __u16 *)p);
60562 }
60563 #define __cpu_to_le64s(x) do { (void)(x); } while (0)
60564 #define __le64_to_cpus(x) do { (void)(x); } while (0)
60565 diff --git a/include/linux/cache.h b/include/linux/cache.h
60566 index 4c57065..4307975 100644
60567 --- a/include/linux/cache.h
60568 +++ b/include/linux/cache.h
60569 @@ -16,6 +16,10 @@
60570 #define __read_mostly
60571 #endif
60572
60573 +#ifndef __read_only
60574 +#define __read_only __read_mostly
60575 +#endif
60576 +
60577 #ifndef ____cacheline_aligned
60578 #define ____cacheline_aligned __attribute__((__aligned__(SMP_CACHE_BYTES)))
60579 #endif
60580 diff --git a/include/linux/capability.h b/include/linux/capability.h
60581 index d10b7ed..0288b79 100644
60582 --- a/include/linux/capability.h
60583 +++ b/include/linux/capability.h
60584 @@ -553,10 +553,15 @@ extern bool capable(int cap);
60585 extern bool ns_capable(struct user_namespace *ns, int cap);
60586 extern bool nsown_capable(int cap);
60587 extern bool inode_capable(const struct inode *inode, int cap);
60588 +extern bool capable_nolog(int cap);
60589 +extern bool ns_capable_nolog(struct user_namespace *ns, int cap);
60590 +extern bool inode_capable_nolog(const struct inode *inode, int cap);
60591
60592 /* audit system wants to get cap info from files as well */
60593 extern int get_vfs_caps_from_disk(const struct dentry *dentry, struct cpu_vfs_cap_data *cpu_caps);
60594
60595 +extern int is_privileged_binary(const struct dentry *dentry);
60596 +
60597 #endif /* __KERNEL__ */
60598
60599 #endif /* !_LINUX_CAPABILITY_H */
60600 diff --git a/include/linux/cleancache.h b/include/linux/cleancache.h
60601 index 42e55de..1cd0e66 100644
60602 --- a/include/linux/cleancache.h
60603 +++ b/include/linux/cleancache.h
60604 @@ -31,7 +31,7 @@ struct cleancache_ops {
60605 void (*invalidate_page)(int, struct cleancache_filekey, pgoff_t);
60606 void (*invalidate_inode)(int, struct cleancache_filekey);
60607 void (*invalidate_fs)(int);
60608 -};
60609 +} __no_const;
60610
60611 extern struct cleancache_ops
60612 cleancache_register_ops(struct cleancache_ops *ops);
60613 diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h
60614 index 4a0b483..f1f70ba 100644
60615 --- a/include/linux/clk-provider.h
60616 +++ b/include/linux/clk-provider.h
60617 @@ -110,6 +110,7 @@ struct clk_ops {
60618 unsigned long);
60619 void (*init)(struct clk_hw *hw);
60620 };
60621 +typedef struct clk_ops __no_const clk_ops_no_const;
60622
60623 /**
60624 * struct clk_init_data - holds init data that's common to all clocks and is
60625 diff --git a/include/linux/compiler-gcc4.h b/include/linux/compiler-gcc4.h
60626 index 2f40791..9c9e13c 100644
60627 --- a/include/linux/compiler-gcc4.h
60628 +++ b/include/linux/compiler-gcc4.h
60629 @@ -32,6 +32,20 @@
60630 #define __linktime_error(message) __attribute__((__error__(message)))
60631
60632 #if __GNUC_MINOR__ >= 5
60633 +
60634 +#ifdef CONSTIFY_PLUGIN
60635 +#define __no_const __attribute__((no_const))
60636 +#define __do_const __attribute__((do_const))
60637 +#endif
60638 +
60639 +#ifdef SIZE_OVERFLOW_PLUGIN
60640 +#define __size_overflow(...) __attribute__((size_overflow(__VA_ARGS__)))
60641 +#endif
60642 +
60643 +#ifdef LATENT_ENTROPY_PLUGIN
60644 +#define __latent_entropy __attribute__((latent_entropy))
60645 +#endif
60646 +
60647 /*
60648 * Mark a position in code as unreachable. This can be used to
60649 * suppress control flow warnings after asm blocks that transfer
60650 @@ -47,6 +61,11 @@
60651 #define __noclone __attribute__((__noclone__))
60652
60653 #endif
60654 +
60655 +#define __alloc_size(...) __attribute((alloc_size(__VA_ARGS__)))
60656 +#define __bos(ptr, arg) __builtin_object_size((ptr), (arg))
60657 +#define __bos0(ptr) __bos((ptr), 0)
60658 +#define __bos1(ptr) __bos((ptr), 1)
60659 #endif
60660
60661 #if __GNUC_MINOR__ > 0
60662 diff --git a/include/linux/compiler.h b/include/linux/compiler.h
60663 index 923d093..1fef491 100644
60664 --- a/include/linux/compiler.h
60665 +++ b/include/linux/compiler.h
60666 @@ -5,31 +5,62 @@
60667
60668 #ifdef __CHECKER__
60669 # define __user __attribute__((noderef, address_space(1)))
60670 +# define __force_user __force __user
60671 # define __kernel __attribute__((address_space(0)))
60672 +# define __force_kernel __force __kernel
60673 # define __safe __attribute__((safe))
60674 # define __force __attribute__((force))
60675 # define __nocast __attribute__((nocast))
60676 # define __iomem __attribute__((noderef, address_space(2)))
60677 +# define __force_iomem __force __iomem
60678 # define __acquires(x) __attribute__((context(x,0,1)))
60679 # define __releases(x) __attribute__((context(x,1,0)))
60680 # define __acquire(x) __context__(x,1)
60681 # define __release(x) __context__(x,-1)
60682 # define __cond_lock(x,c) ((c) ? ({ __acquire(x); 1; }) : 0)
60683 # define __percpu __attribute__((noderef, address_space(3)))
60684 +# define __force_percpu __force __percpu
60685 #ifdef CONFIG_SPARSE_RCU_POINTER
60686 # define __rcu __attribute__((noderef, address_space(4)))
60687 +# define __force_rcu __force __rcu
60688 #else
60689 # define __rcu
60690 +# define __force_rcu
60691 #endif
60692 extern void __chk_user_ptr(const volatile void __user *);
60693 extern void __chk_io_ptr(const volatile void __iomem *);
60694 +#elif defined(CHECKER_PLUGIN)
60695 +//# define __user
60696 +//# define __force_user
60697 +//# define __kernel
60698 +//# define __force_kernel
60699 +# define __safe
60700 +# define __force
60701 +# define __nocast
60702 +# define __iomem
60703 +# define __force_iomem
60704 +# define __chk_user_ptr(x) (void)0
60705 +# define __chk_io_ptr(x) (void)0
60706 +# define __builtin_warning(x, y...) (1)
60707 +# define __acquires(x)
60708 +# define __releases(x)
60709 +# define __acquire(x) (void)0
60710 +# define __release(x) (void)0
60711 +# define __cond_lock(x,c) (c)
60712 +# define __percpu
60713 +# define __force_percpu
60714 +# define __rcu
60715 +# define __force_rcu
60716 #else
60717 # define __user
60718 +# define __force_user
60719 # define __kernel
60720 +# define __force_kernel
60721 # define __safe
60722 # define __force
60723 # define __nocast
60724 # define __iomem
60725 +# define __force_iomem
60726 # define __chk_user_ptr(x) (void)0
60727 # define __chk_io_ptr(x) (void)0
60728 # define __builtin_warning(x, y...) (1)
60729 @@ -39,7 +70,9 @@ extern void __chk_io_ptr(const volatile void __iomem *);
60730 # define __release(x) (void)0
60731 # define __cond_lock(x,c) (c)
60732 # define __percpu
60733 +# define __force_percpu
60734 # define __rcu
60735 +# define __force_rcu
60736 #endif
60737
60738 #ifdef __KERNEL__
60739 @@ -264,6 +297,22 @@ void ftrace_likely_update(struct ftrace_branch_data *f, int val, int expect);
60740 # define __attribute_const__ /* unimplemented */
60741 #endif
60742
60743 +#ifndef __no_const
60744 +# define __no_const
60745 +#endif
60746 +
60747 +#ifndef __do_const
60748 +# define __do_const
60749 +#endif
60750 +
60751 +#ifndef __size_overflow
60752 +# define __size_overflow(...)
60753 +#endif
60754 +
60755 +#ifndef __latent_entropy
60756 +# define __latent_entropy
60757 +#endif
60758 +
60759 /*
60760 * Tell gcc if a function is cold. The compiler will assume any path
60761 * directly leading to the call is unlikely.
60762 @@ -273,6 +322,22 @@ void ftrace_likely_update(struct ftrace_branch_data *f, int val, int expect);
60763 #define __cold
60764 #endif
60765
60766 +#ifndef __alloc_size
60767 +#define __alloc_size(...)
60768 +#endif
60769 +
60770 +#ifndef __bos
60771 +#define __bos(ptr, arg)
60772 +#endif
60773 +
60774 +#ifndef __bos0
60775 +#define __bos0(ptr)
60776 +#endif
60777 +
60778 +#ifndef __bos1
60779 +#define __bos1(ptr)
60780 +#endif
60781 +
60782 /* Simple shorthand for a section definition */
60783 #ifndef __section
60784 # define __section(S) __attribute__ ((__section__(#S)))
60785 @@ -308,6 +373,7 @@ void ftrace_likely_update(struct ftrace_branch_data *f, int val, int expect);
60786 * use is to mediate communication between process-level code and irq/NMI
60787 * handlers, all running on the same CPU.
60788 */
60789 -#define ACCESS_ONCE(x) (*(volatile typeof(x) *)&(x))
60790 +#define ACCESS_ONCE(x) (*(volatile const typeof(x) *)&(x))
60791 +#define ACCESS_ONCE_RW(x) (*(volatile typeof(x) *)&(x))
60792
60793 #endif /* __LINUX_COMPILER_H */
60794 diff --git a/include/linux/cred.h b/include/linux/cred.h
60795 index ebbed2c..908cc2c 100644
60796 --- a/include/linux/cred.h
60797 +++ b/include/linux/cred.h
60798 @@ -208,6 +208,9 @@ static inline void validate_creds_for_do_exit(struct task_struct *tsk)
60799 static inline void validate_process_creds(void)
60800 {
60801 }
60802 +static inline void validate_task_creds(struct task_struct *task)
60803 +{
60804 +}
60805 #endif
60806
60807 /**
60808 diff --git a/include/linux/crypto.h b/include/linux/crypto.h
60809 index b92eadf..b4ecdc1 100644
60810 --- a/include/linux/crypto.h
60811 +++ b/include/linux/crypto.h
60812 @@ -373,7 +373,7 @@ struct cipher_tfm {
60813 const u8 *key, unsigned int keylen);
60814 void (*cit_encrypt_one)(struct crypto_tfm *tfm, u8 *dst, const u8 *src);
60815 void (*cit_decrypt_one)(struct crypto_tfm *tfm, u8 *dst, const u8 *src);
60816 -};
60817 +} __no_const;
60818
60819 struct hash_tfm {
60820 int (*init)(struct hash_desc *desc);
60821 @@ -394,13 +394,13 @@ struct compress_tfm {
60822 int (*cot_decompress)(struct crypto_tfm *tfm,
60823 const u8 *src, unsigned int slen,
60824 u8 *dst, unsigned int *dlen);
60825 -};
60826 +} __no_const;
60827
60828 struct rng_tfm {
60829 int (*rng_gen_random)(struct crypto_rng *tfm, u8 *rdata,
60830 unsigned int dlen);
60831 int (*rng_reset)(struct crypto_rng *tfm, u8 *seed, unsigned int slen);
60832 -};
60833 +} __no_const;
60834
60835 #define crt_ablkcipher crt_u.ablkcipher
60836 #define crt_aead crt_u.aead
60837 diff --git a/include/linux/decompress/mm.h b/include/linux/decompress/mm.h
60838 index 7925bf0..d5143d2 100644
60839 --- a/include/linux/decompress/mm.h
60840 +++ b/include/linux/decompress/mm.h
60841 @@ -77,7 +77,7 @@ static void free(void *where)
60842 * warnings when not needed (indeed large_malloc / large_free are not
60843 * needed by inflate */
60844
60845 -#define malloc(a) kmalloc(a, GFP_KERNEL)
60846 +#define malloc(a) kmalloc((a), GFP_KERNEL)
60847 #define free(a) kfree(a)
60848
60849 #define large_malloc(a) vmalloc(a)
60850 diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
60851 index dfc099e..e583e66 100644
60852 --- a/include/linux/dma-mapping.h
60853 +++ b/include/linux/dma-mapping.h
60854 @@ -51,7 +51,7 @@ struct dma_map_ops {
60855 u64 (*get_required_mask)(struct device *dev);
60856 #endif
60857 int is_phys;
60858 -};
60859 +} __do_const;
60860
60861 #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : ((1ULL<<(n))-1))
60862
60863 diff --git a/include/linux/efi.h b/include/linux/efi.h
60864 index ec45ccd..9923c32 100644
60865 --- a/include/linux/efi.h
60866 +++ b/include/linux/efi.h
60867 @@ -635,7 +635,7 @@ struct efivar_operations {
60868 efi_get_variable_t *get_variable;
60869 efi_get_next_variable_t *get_next_variable;
60870 efi_set_variable_t *set_variable;
60871 -};
60872 +} __no_const;
60873
60874 struct efivars {
60875 /*
60876 diff --git a/include/linux/elf.h b/include/linux/elf.h
60877 index 999b4f5..57753b4 100644
60878 --- a/include/linux/elf.h
60879 +++ b/include/linux/elf.h
60880 @@ -40,6 +40,17 @@ typedef __s64 Elf64_Sxword;
60881 #define PT_GNU_EH_FRAME 0x6474e550
60882
60883 #define PT_GNU_STACK (PT_LOOS + 0x474e551)
60884 +#define PT_GNU_RELRO (PT_LOOS + 0x474e552)
60885 +
60886 +#define PT_PAX_FLAGS (PT_LOOS + 0x5041580)
60887 +
60888 +/* Constants for the e_flags field */
60889 +#define EF_PAX_PAGEEXEC 1 /* Paging based non-executable pages */
60890 +#define EF_PAX_EMUTRAMP 2 /* Emulate trampolines */
60891 +#define EF_PAX_MPROTECT 4 /* Restrict mprotect() */
60892 +#define EF_PAX_RANDMMAP 8 /* Randomize mmap() base */
60893 +/*#define EF_PAX_RANDEXEC 16*/ /* Randomize ET_EXEC base */
60894 +#define EF_PAX_SEGMEXEC 32 /* Segmentation based non-executable pages */
60895
60896 /*
60897 * Extended Numbering
60898 @@ -97,6 +108,8 @@ typedef __s64 Elf64_Sxword;
60899 #define DT_DEBUG 21
60900 #define DT_TEXTREL 22
60901 #define DT_JMPREL 23
60902 +#define DT_FLAGS 30
60903 + #define DF_TEXTREL 0x00000004
60904 #define DT_ENCODING 32
60905 #define OLD_DT_LOOS 0x60000000
60906 #define DT_LOOS 0x6000000d
60907 @@ -243,6 +256,19 @@ typedef struct elf64_hdr {
60908 #define PF_W 0x2
60909 #define PF_X 0x1
60910
60911 +#define PF_PAGEEXEC (1U << 4) /* Enable PAGEEXEC */
60912 +#define PF_NOPAGEEXEC (1U << 5) /* Disable PAGEEXEC */
60913 +#define PF_SEGMEXEC (1U << 6) /* Enable SEGMEXEC */
60914 +#define PF_NOSEGMEXEC (1U << 7) /* Disable SEGMEXEC */
60915 +#define PF_MPROTECT (1U << 8) /* Enable MPROTECT */
60916 +#define PF_NOMPROTECT (1U << 9) /* Disable MPROTECT */
60917 +/*#define PF_RANDEXEC (1U << 10)*/ /* Enable RANDEXEC */
60918 +/*#define PF_NORANDEXEC (1U << 11)*/ /* Disable RANDEXEC */
60919 +#define PF_EMUTRAMP (1U << 12) /* Enable EMUTRAMP */
60920 +#define PF_NOEMUTRAMP (1U << 13) /* Disable EMUTRAMP */
60921 +#define PF_RANDMMAP (1U << 14) /* Enable RANDMMAP */
60922 +#define PF_NORANDMMAP (1U << 15) /* Disable RANDMMAP */
60923 +
60924 typedef struct elf32_phdr{
60925 Elf32_Word p_type;
60926 Elf32_Off p_offset;
60927 @@ -335,6 +361,8 @@ typedef struct elf64_shdr {
60928 #define EI_OSABI 7
60929 #define EI_PAD 8
60930
60931 +#define EI_PAX 14
60932 +
60933 #define ELFMAG0 0x7f /* EI_MAG */
60934 #define ELFMAG1 'E'
60935 #define ELFMAG2 'L'
60936 @@ -421,6 +449,7 @@ extern Elf32_Dyn _DYNAMIC [];
60937 #define elf_note elf32_note
60938 #define elf_addr_t Elf32_Off
60939 #define Elf_Half Elf32_Half
60940 +#define elf_dyn Elf32_Dyn
60941
60942 #else
60943
60944 @@ -431,6 +460,7 @@ extern Elf64_Dyn _DYNAMIC [];
60945 #define elf_note elf64_note
60946 #define elf_addr_t Elf64_Off
60947 #define Elf_Half Elf64_Half
60948 +#define elf_dyn Elf64_Dyn
60949
60950 #endif
60951
60952 diff --git a/include/linux/filter.h b/include/linux/filter.h
60953 index 82b0135..917914d 100644
60954 --- a/include/linux/filter.h
60955 +++ b/include/linux/filter.h
60956 @@ -146,6 +146,7 @@ struct compat_sock_fprog {
60957
60958 struct sk_buff;
60959 struct sock;
60960 +struct bpf_jit_work;
60961
60962 struct sk_filter
60963 {
60964 @@ -153,6 +154,9 @@ struct sk_filter
60965 unsigned int len; /* Number of filter blocks */
60966 unsigned int (*bpf_func)(const struct sk_buff *skb,
60967 const struct sock_filter *filter);
60968 +#ifdef CONFIG_BPF_JIT
60969 + struct bpf_jit_work *work;
60970 +#endif
60971 struct rcu_head rcu;
60972 struct sock_filter insns[0];
60973 };
60974 diff --git a/include/linux/firewire.h b/include/linux/firewire.h
60975 index 7edcf10..714d5e8 100644
60976 --- a/include/linux/firewire.h
60977 +++ b/include/linux/firewire.h
60978 @@ -430,7 +430,7 @@ struct fw_iso_context {
60979 union {
60980 fw_iso_callback_t sc;
60981 fw_iso_mc_callback_t mc;
60982 - } callback;
60983 + } __no_const callback;
60984 void *callback_data;
60985 };
60986
60987 diff --git a/include/linux/frontswap.h b/include/linux/frontswap.h
60988 index 0e4e2ee..4ff4312 100644
60989 --- a/include/linux/frontswap.h
60990 +++ b/include/linux/frontswap.h
60991 @@ -11,7 +11,7 @@ struct frontswap_ops {
60992 int (*load)(unsigned, pgoff_t, struct page *);
60993 void (*invalidate_page)(unsigned, pgoff_t);
60994 void (*invalidate_area)(unsigned);
60995 -};
60996 +} __no_const;
60997
60998 extern bool frontswap_enabled;
60999 extern struct frontswap_ops
61000 diff --git a/include/linux/fs.h b/include/linux/fs.h
61001 index 17fd887..8eebca0 100644
61002 --- a/include/linux/fs.h
61003 +++ b/include/linux/fs.h
61004 @@ -1663,7 +1663,8 @@ struct file_operations {
61005 int (*setlease)(struct file *, long, struct file_lock **);
61006 long (*fallocate)(struct file *file, int mode, loff_t offset,
61007 loff_t len);
61008 -};
61009 +} __do_const;
61010 +typedef struct file_operations __no_const file_operations_no_const;
61011
61012 struct inode_operations {
61013 struct dentry * (*lookup) (struct inode *,struct dentry *, struct nameidata *);
61014 diff --git a/include/linux/fs_struct.h b/include/linux/fs_struct.h
61015 index 003dc0f..3c4ea97 100644
61016 --- a/include/linux/fs_struct.h
61017 +++ b/include/linux/fs_struct.h
61018 @@ -6,7 +6,7 @@
61019 #include <linux/seqlock.h>
61020
61021 struct fs_struct {
61022 - int users;
61023 + atomic_t users;
61024 spinlock_t lock;
61025 seqcount_t seq;
61026 int umask;
61027 diff --git a/include/linux/fscache-cache.h b/include/linux/fscache-cache.h
61028 index ce31408..b1ad003 100644
61029 --- a/include/linux/fscache-cache.h
61030 +++ b/include/linux/fscache-cache.h
61031 @@ -102,7 +102,7 @@ struct fscache_operation {
61032 fscache_operation_release_t release;
61033 };
61034
61035 -extern atomic_t fscache_op_debug_id;
61036 +extern atomic_unchecked_t fscache_op_debug_id;
61037 extern void fscache_op_work_func(struct work_struct *work);
61038
61039 extern void fscache_enqueue_operation(struct fscache_operation *);
61040 @@ -122,7 +122,7 @@ static inline void fscache_operation_init(struct fscache_operation *op,
61041 {
61042 INIT_WORK(&op->work, fscache_op_work_func);
61043 atomic_set(&op->usage, 1);
61044 - op->debug_id = atomic_inc_return(&fscache_op_debug_id);
61045 + op->debug_id = atomic_inc_return_unchecked(&fscache_op_debug_id);
61046 op->processor = processor;
61047 op->release = release;
61048 INIT_LIST_HEAD(&op->pend_link);
61049 diff --git a/include/linux/fsnotify.h b/include/linux/fsnotify.h
61050 index a6dfe69..569586df 100644
61051 --- a/include/linux/fsnotify.h
61052 +++ b/include/linux/fsnotify.h
61053 @@ -315,7 +315,7 @@ static inline void fsnotify_change(struct dentry *dentry, unsigned int ia_valid)
61054 */
61055 static inline const unsigned char *fsnotify_oldname_init(const unsigned char *name)
61056 {
61057 - return kstrdup(name, GFP_KERNEL);
61058 + return (const unsigned char *)kstrdup((const char *)name, GFP_KERNEL);
61059 }
61060
61061 /*
61062 diff --git a/include/linux/fsnotify_backend.h b/include/linux/fsnotify_backend.h
61063 index 63d966d..cdcb717 100644
61064 --- a/include/linux/fsnotify_backend.h
61065 +++ b/include/linux/fsnotify_backend.h
61066 @@ -105,6 +105,7 @@ struct fsnotify_ops {
61067 void (*freeing_mark)(struct fsnotify_mark *mark, struct fsnotify_group *group);
61068 void (*free_event_priv)(struct fsnotify_event_private_data *priv);
61069 };
61070 +typedef struct fsnotify_ops __no_const fsnotify_ops_no_const;
61071
61072 /*
61073 * A group is a "thing" that wants to receive notification about filesystem
61074 diff --git a/include/linux/ftrace_event.h b/include/linux/ftrace_event.h
61075 index 176a939..1462211 100644
61076 --- a/include/linux/ftrace_event.h
61077 +++ b/include/linux/ftrace_event.h
61078 @@ -97,7 +97,7 @@ struct trace_event_functions {
61079 trace_print_func raw;
61080 trace_print_func hex;
61081 trace_print_func binary;
61082 -};
61083 +} __no_const;
61084
61085 struct trace_event {
61086 struct hlist_node node;
61087 @@ -263,7 +263,7 @@ extern int trace_define_field(struct ftrace_event_call *call, const char *type,
61088 extern int trace_add_event_call(struct ftrace_event_call *call);
61089 extern void trace_remove_event_call(struct ftrace_event_call *call);
61090
61091 -#define is_signed_type(type) (((type)(-1)) < 0)
61092 +#define is_signed_type(type) (((type)(-1)) < (type)1)
61093
61094 int trace_set_clr_event(const char *system, const char *event, int set);
61095
61096 diff --git a/include/linux/genhd.h b/include/linux/genhd.h
61097 index 017a7fb..33a8507 100644
61098 --- a/include/linux/genhd.h
61099 +++ b/include/linux/genhd.h
61100 @@ -185,7 +185,7 @@ struct gendisk {
61101 struct kobject *slave_dir;
61102
61103 struct timer_rand_state *random;
61104 - atomic_t sync_io; /* RAID */
61105 + atomic_unchecked_t sync_io; /* RAID */
61106 struct disk_events *ev;
61107 #ifdef CONFIG_BLK_DEV_INTEGRITY
61108 struct blk_integrity *integrity;
61109 diff --git a/include/linux/gfp.h b/include/linux/gfp.h
61110 index 1e49be4..b8a9305 100644
61111 --- a/include/linux/gfp.h
61112 +++ b/include/linux/gfp.h
61113 @@ -38,6 +38,12 @@ struct vm_area_struct;
61114 #define ___GFP_OTHER_NODE 0x800000u
61115 #define ___GFP_WRITE 0x1000000u
61116
61117 +#ifdef CONFIG_PAX_USERCOPY_SLABS
61118 +#define ___GFP_USERCOPY 0x2000000u
61119 +#else
61120 +#define ___GFP_USERCOPY 0
61121 +#endif
61122 +
61123 /*
61124 * GFP bitmasks..
61125 *
61126 @@ -87,6 +93,7 @@ struct vm_area_struct;
61127 #define __GFP_NO_KSWAPD ((__force gfp_t)___GFP_NO_KSWAPD)
61128 #define __GFP_OTHER_NODE ((__force gfp_t)___GFP_OTHER_NODE) /* On behalf of other node */
61129 #define __GFP_WRITE ((__force gfp_t)___GFP_WRITE) /* Allocator intends to dirty page */
61130 +#define __GFP_USERCOPY ((__force gfp_t)___GFP_USERCOPY)/* Allocator intends to copy page to/from userland */
61131
61132 /*
61133 * This may seem redundant, but it's a way of annotating false positives vs.
61134 @@ -94,7 +101,7 @@ struct vm_area_struct;
61135 */
61136 #define __GFP_NOTRACK_FALSE_POSITIVE (__GFP_NOTRACK)
61137
61138 -#define __GFP_BITS_SHIFT 25 /* Room for N __GFP_FOO bits */
61139 +#define __GFP_BITS_SHIFT 26 /* Room for N __GFP_FOO bits */
61140 #define __GFP_BITS_MASK ((__force gfp_t)((1 << __GFP_BITS_SHIFT) - 1))
61141
61142 /* This equals 0, but use constants in case they ever change */
61143 @@ -148,6 +155,8 @@ struct vm_area_struct;
61144 /* 4GB DMA on some platforms */
61145 #define GFP_DMA32 __GFP_DMA32
61146
61147 +#define GFP_USERCOPY __GFP_USERCOPY
61148 +
61149 /* Convert GFP flags to their corresponding migrate type */
61150 static inline int allocflags_to_migratetype(gfp_t gfp_flags)
61151 {
61152 diff --git a/include/linux/gracl.h b/include/linux/gracl.h
61153 new file mode 100644
61154 index 0000000..c938b1f
61155 --- /dev/null
61156 +++ b/include/linux/gracl.h
61157 @@ -0,0 +1,319 @@
61158 +#ifndef GR_ACL_H
61159 +#define GR_ACL_H
61160 +
61161 +#include <linux/grdefs.h>
61162 +#include <linux/resource.h>
61163 +#include <linux/capability.h>
61164 +#include <linux/dcache.h>
61165 +#include <asm/resource.h>
61166 +
61167 +/* Major status information */
61168 +
61169 +#define GR_VERSION "grsecurity 2.9.1"
61170 +#define GRSECURITY_VERSION 0x2901
61171 +
61172 +enum {
61173 + GR_SHUTDOWN = 0,
61174 + GR_ENABLE = 1,
61175 + GR_SPROLE = 2,
61176 + GR_RELOAD = 3,
61177 + GR_SEGVMOD = 4,
61178 + GR_STATUS = 5,
61179 + GR_UNSPROLE = 6,
61180 + GR_PASSSET = 7,
61181 + GR_SPROLEPAM = 8,
61182 +};
61183 +
61184 +/* Password setup definitions
61185 + * kernel/grhash.c */
61186 +enum {
61187 + GR_PW_LEN = 128,
61188 + GR_SALT_LEN = 16,
61189 + GR_SHA_LEN = 32,
61190 +};
61191 +
61192 +enum {
61193 + GR_SPROLE_LEN = 64,
61194 +};
61195 +
61196 +enum {
61197 + GR_NO_GLOB = 0,
61198 + GR_REG_GLOB,
61199 + GR_CREATE_GLOB
61200 +};
61201 +
61202 +#define GR_NLIMITS 32
61203 +
61204 +/* Begin Data Structures */
61205 +
61206 +struct sprole_pw {
61207 + unsigned char *rolename;
61208 + unsigned char salt[GR_SALT_LEN];
61209 + unsigned char sum[GR_SHA_LEN]; /* 256-bit SHA hash of the password */
61210 +};
61211 +
61212 +struct name_entry {
61213 + __u32 key;
61214 + ino_t inode;
61215 + dev_t device;
61216 + char *name;
61217 + __u16 len;
61218 + __u8 deleted;
61219 + struct name_entry *prev;
61220 + struct name_entry *next;
61221 +};
61222 +
61223 +struct inodev_entry {
61224 + struct name_entry *nentry;
61225 + struct inodev_entry *prev;
61226 + struct inodev_entry *next;
61227 +};
61228 +
61229 +struct acl_role_db {
61230 + struct acl_role_label **r_hash;
61231 + __u32 r_size;
61232 +};
61233 +
61234 +struct inodev_db {
61235 + struct inodev_entry **i_hash;
61236 + __u32 i_size;
61237 +};
61238 +
61239 +struct name_db {
61240 + struct name_entry **n_hash;
61241 + __u32 n_size;
61242 +};
61243 +
61244 +struct crash_uid {
61245 + uid_t uid;
61246 + unsigned long expires;
61247 +};
61248 +
61249 +struct gr_hash_struct {
61250 + void **table;
61251 + void **nametable;
61252 + void *first;
61253 + __u32 table_size;
61254 + __u32 used_size;
61255 + int type;
61256 +};
61257 +
61258 +/* Userspace Grsecurity ACL data structures */
61259 +
61260 +struct acl_subject_label {
61261 + char *filename;
61262 + ino_t inode;
61263 + dev_t device;
61264 + __u32 mode;
61265 + kernel_cap_t cap_mask;
61266 + kernel_cap_t cap_lower;
61267 + kernel_cap_t cap_invert_audit;
61268 +
61269 + struct rlimit res[GR_NLIMITS];
61270 + __u32 resmask;
61271 +
61272 + __u8 user_trans_type;
61273 + __u8 group_trans_type;
61274 + uid_t *user_transitions;
61275 + gid_t *group_transitions;
61276 + __u16 user_trans_num;
61277 + __u16 group_trans_num;
61278 +
61279 + __u32 sock_families[2];
61280 + __u32 ip_proto[8];
61281 + __u32 ip_type;
61282 + struct acl_ip_label **ips;
61283 + __u32 ip_num;
61284 + __u32 inaddr_any_override;
61285 +
61286 + __u32 crashes;
61287 + unsigned long expires;
61288 +
61289 + struct acl_subject_label *parent_subject;
61290 + struct gr_hash_struct *hash;
61291 + struct acl_subject_label *prev;
61292 + struct acl_subject_label *next;
61293 +
61294 + struct acl_object_label **obj_hash;
61295 + __u32 obj_hash_size;
61296 + __u16 pax_flags;
61297 +};
61298 +
61299 +struct role_allowed_ip {
61300 + __u32 addr;
61301 + __u32 netmask;
61302 +
61303 + struct role_allowed_ip *prev;
61304 + struct role_allowed_ip *next;
61305 +};
61306 +
61307 +struct role_transition {
61308 + char *rolename;
61309 +
61310 + struct role_transition *prev;
61311 + struct role_transition *next;
61312 +};
61313 +
61314 +struct acl_role_label {
61315 + char *rolename;
61316 + uid_t uidgid;
61317 + __u16 roletype;
61318 +
61319 + __u16 auth_attempts;
61320 + unsigned long expires;
61321 +
61322 + struct acl_subject_label *root_label;
61323 + struct gr_hash_struct *hash;
61324 +
61325 + struct acl_role_label *prev;
61326 + struct acl_role_label *next;
61327 +
61328 + struct role_transition *transitions;
61329 + struct role_allowed_ip *allowed_ips;
61330 + uid_t *domain_children;
61331 + __u16 domain_child_num;
61332 +
61333 + umode_t umask;
61334 +
61335 + struct acl_subject_label **subj_hash;
61336 + __u32 subj_hash_size;
61337 +};
61338 +
61339 +struct user_acl_role_db {
61340 + struct acl_role_label **r_table;
61341 + __u32 num_pointers; /* Number of allocations to track */
61342 + __u32 num_roles; /* Number of roles */
61343 + __u32 num_domain_children; /* Number of domain children */
61344 + __u32 num_subjects; /* Number of subjects */
61345 + __u32 num_objects; /* Number of objects */
61346 +};
61347 +
61348 +struct acl_object_label {
61349 + char *filename;
61350 + ino_t inode;
61351 + dev_t device;
61352 + __u32 mode;
61353 +
61354 + struct acl_subject_label *nested;
61355 + struct acl_object_label *globbed;
61356 +
61357 + /* next two structures not used */
61358 +
61359 + struct acl_object_label *prev;
61360 + struct acl_object_label *next;
61361 +};
61362 +
61363 +struct acl_ip_label {
61364 + char *iface;
61365 + __u32 addr;
61366 + __u32 netmask;
61367 + __u16 low, high;
61368 + __u8 mode;
61369 + __u32 type;
61370 + __u32 proto[8];
61371 +
61372 + /* next two structures not used */
61373 +
61374 + struct acl_ip_label *prev;
61375 + struct acl_ip_label *next;
61376 +};
61377 +
61378 +struct gr_arg {
61379 + struct user_acl_role_db role_db;
61380 + unsigned char pw[GR_PW_LEN];
61381 + unsigned char salt[GR_SALT_LEN];
61382 + unsigned char sum[GR_SHA_LEN];
61383 + unsigned char sp_role[GR_SPROLE_LEN];
61384 + struct sprole_pw *sprole_pws;
61385 + dev_t segv_device;
61386 + ino_t segv_inode;
61387 + uid_t segv_uid;
61388 + __u16 num_sprole_pws;
61389 + __u16 mode;
61390 +};
61391 +
61392 +struct gr_arg_wrapper {
61393 + struct gr_arg *arg;
61394 + __u32 version;
61395 + __u32 size;
61396 +};
61397 +
61398 +struct subject_map {
61399 + struct acl_subject_label *user;
61400 + struct acl_subject_label *kernel;
61401 + struct subject_map *prev;
61402 + struct subject_map *next;
61403 +};
61404 +
61405 +struct acl_subj_map_db {
61406 + struct subject_map **s_hash;
61407 + __u32 s_size;
61408 +};
61409 +
61410 +/* End Data Structures Section */
61411 +
61412 +/* Hash functions generated by empirical testing by Brad Spengler
61413 + Makes good use of the low bits of the inode. Generally 0-1 times
61414 + in loop for successful match. 0-3 for unsuccessful match.
61415 + Shift/add algorithm with modulus of table size and an XOR*/
61416 +
61417 +static __inline__ unsigned int
61418 +rhash(const uid_t uid, const __u16 type, const unsigned int sz)
61419 +{
61420 + return ((((uid + type) << (16 + type)) ^ uid) % sz);
61421 +}
61422 +
61423 + static __inline__ unsigned int
61424 +shash(const struct acl_subject_label *userp, const unsigned int sz)
61425 +{
61426 + return ((const unsigned long)userp % sz);
61427 +}
61428 +
61429 +static __inline__ unsigned int
61430 +fhash(const ino_t ino, const dev_t dev, const unsigned int sz)
61431 +{
61432 + return (((ino + dev) ^ ((ino << 13) + (ino << 23) + (dev << 9))) % sz);
61433 +}
61434 +
61435 +static __inline__ unsigned int
61436 +nhash(const char *name, const __u16 len, const unsigned int sz)
61437 +{
61438 + return full_name_hash((const unsigned char *)name, len) % sz;
61439 +}
61440 +
61441 +#define FOR_EACH_ROLE_START(role) \
61442 + role = role_list; \
61443 + while (role) {
61444 +
61445 +#define FOR_EACH_ROLE_END(role) \
61446 + role = role->prev; \
61447 + }
61448 +
61449 +#define FOR_EACH_SUBJECT_START(role,subj,iter) \
61450 + subj = NULL; \
61451 + iter = 0; \
61452 + while (iter < role->subj_hash_size) { \
61453 + if (subj == NULL) \
61454 + subj = role->subj_hash[iter]; \
61455 + if (subj == NULL) { \
61456 + iter++; \
61457 + continue; \
61458 + }
61459 +
61460 +#define FOR_EACH_SUBJECT_END(subj,iter) \
61461 + subj = subj->next; \
61462 + if (subj == NULL) \
61463 + iter++; \
61464 + }
61465 +
61466 +
61467 +#define FOR_EACH_NESTED_SUBJECT_START(role,subj) \
61468 + subj = role->hash->first; \
61469 + while (subj != NULL) {
61470 +
61471 +#define FOR_EACH_NESTED_SUBJECT_END(subj) \
61472 + subj = subj->next; \
61473 + }
61474 +
61475 +#endif
61476 +
61477 diff --git a/include/linux/gralloc.h b/include/linux/gralloc.h
61478 new file mode 100644
61479 index 0000000..323ecf2
61480 --- /dev/null
61481 +++ b/include/linux/gralloc.h
61482 @@ -0,0 +1,9 @@
61483 +#ifndef __GRALLOC_H
61484 +#define __GRALLOC_H
61485 +
61486 +void acl_free_all(void);
61487 +int acl_alloc_stack_init(unsigned long size);
61488 +void *acl_alloc(unsigned long len);
61489 +void *acl_alloc_num(unsigned long num, unsigned long len);
61490 +
61491 +#endif
61492 diff --git a/include/linux/grdefs.h b/include/linux/grdefs.h
61493 new file mode 100644
61494 index 0000000..b30e9bc
61495 --- /dev/null
61496 +++ b/include/linux/grdefs.h
61497 @@ -0,0 +1,140 @@
61498 +#ifndef GRDEFS_H
61499 +#define GRDEFS_H
61500 +
61501 +/* Begin grsecurity status declarations */
61502 +
61503 +enum {
61504 + GR_READY = 0x01,
61505 + GR_STATUS_INIT = 0x00 // disabled state
61506 +};
61507 +
61508 +/* Begin ACL declarations */
61509 +
61510 +/* Role flags */
61511 +
61512 +enum {
61513 + GR_ROLE_USER = 0x0001,
61514 + GR_ROLE_GROUP = 0x0002,
61515 + GR_ROLE_DEFAULT = 0x0004,
61516 + GR_ROLE_SPECIAL = 0x0008,
61517 + GR_ROLE_AUTH = 0x0010,
61518 + GR_ROLE_NOPW = 0x0020,
61519 + GR_ROLE_GOD = 0x0040,
61520 + GR_ROLE_LEARN = 0x0080,
61521 + GR_ROLE_TPE = 0x0100,
61522 + GR_ROLE_DOMAIN = 0x0200,
61523 + GR_ROLE_PAM = 0x0400,
61524 + GR_ROLE_PERSIST = 0x0800
61525 +};
61526 +
61527 +/* ACL Subject and Object mode flags */
61528 +enum {
61529 + GR_DELETED = 0x80000000
61530 +};
61531 +
61532 +/* ACL Object-only mode flags */
61533 +enum {
61534 + GR_READ = 0x00000001,
61535 + GR_APPEND = 0x00000002,
61536 + GR_WRITE = 0x00000004,
61537 + GR_EXEC = 0x00000008,
61538 + GR_FIND = 0x00000010,
61539 + GR_INHERIT = 0x00000020,
61540 + GR_SETID = 0x00000040,
61541 + GR_CREATE = 0x00000080,
61542 + GR_DELETE = 0x00000100,
61543 + GR_LINK = 0x00000200,
61544 + GR_AUDIT_READ = 0x00000400,
61545 + GR_AUDIT_APPEND = 0x00000800,
61546 + GR_AUDIT_WRITE = 0x00001000,
61547 + GR_AUDIT_EXEC = 0x00002000,
61548 + GR_AUDIT_FIND = 0x00004000,
61549 + GR_AUDIT_INHERIT= 0x00008000,
61550 + GR_AUDIT_SETID = 0x00010000,
61551 + GR_AUDIT_CREATE = 0x00020000,
61552 + GR_AUDIT_DELETE = 0x00040000,
61553 + GR_AUDIT_LINK = 0x00080000,
61554 + GR_PTRACERD = 0x00100000,
61555 + GR_NOPTRACE = 0x00200000,
61556 + GR_SUPPRESS = 0x00400000,
61557 + GR_NOLEARN = 0x00800000,
61558 + GR_INIT_TRANSFER= 0x01000000
61559 +};
61560 +
61561 +#define GR_AUDITS (GR_AUDIT_READ | GR_AUDIT_WRITE | GR_AUDIT_APPEND | GR_AUDIT_EXEC | \
61562 + GR_AUDIT_FIND | GR_AUDIT_INHERIT | GR_AUDIT_SETID | \
61563 + GR_AUDIT_CREATE | GR_AUDIT_DELETE | GR_AUDIT_LINK)
61564 +
61565 +/* ACL subject-only mode flags */
61566 +enum {
61567 + GR_KILL = 0x00000001,
61568 + GR_VIEW = 0x00000002,
61569 + GR_PROTECTED = 0x00000004,
61570 + GR_LEARN = 0x00000008,
61571 + GR_OVERRIDE = 0x00000010,
61572 + /* just a placeholder, this mode is only used in userspace */
61573 + GR_DUMMY = 0x00000020,
61574 + GR_PROTSHM = 0x00000040,
61575 + GR_KILLPROC = 0x00000080,
61576 + GR_KILLIPPROC = 0x00000100,
61577 + /* just a placeholder, this mode is only used in userspace */
61578 + GR_NOTROJAN = 0x00000200,
61579 + GR_PROTPROCFD = 0x00000400,
61580 + GR_PROCACCT = 0x00000800,
61581 + GR_RELAXPTRACE = 0x00001000,
61582 + GR_NESTED = 0x00002000,
61583 + GR_INHERITLEARN = 0x00004000,
61584 + GR_PROCFIND = 0x00008000,
61585 + GR_POVERRIDE = 0x00010000,
61586 + GR_KERNELAUTH = 0x00020000,
61587 + GR_ATSECURE = 0x00040000,
61588 + GR_SHMEXEC = 0x00080000
61589 +};
61590 +
61591 +enum {
61592 + GR_PAX_ENABLE_SEGMEXEC = 0x0001,
61593 + GR_PAX_ENABLE_PAGEEXEC = 0x0002,
61594 + GR_PAX_ENABLE_MPROTECT = 0x0004,
61595 + GR_PAX_ENABLE_RANDMMAP = 0x0008,
61596 + GR_PAX_ENABLE_EMUTRAMP = 0x0010,
61597 + GR_PAX_DISABLE_SEGMEXEC = 0x0100,
61598 + GR_PAX_DISABLE_PAGEEXEC = 0x0200,
61599 + GR_PAX_DISABLE_MPROTECT = 0x0400,
61600 + GR_PAX_DISABLE_RANDMMAP = 0x0800,
61601 + GR_PAX_DISABLE_EMUTRAMP = 0x1000,
61602 +};
61603 +
61604 +enum {
61605 + GR_ID_USER = 0x01,
61606 + GR_ID_GROUP = 0x02,
61607 +};
61608 +
61609 +enum {
61610 + GR_ID_ALLOW = 0x01,
61611 + GR_ID_DENY = 0x02,
61612 +};
61613 +
61614 +#define GR_CRASH_RES 31
61615 +#define GR_UIDTABLE_MAX 500
61616 +
61617 +/* begin resource learning section */
61618 +enum {
61619 + GR_RLIM_CPU_BUMP = 60,
61620 + GR_RLIM_FSIZE_BUMP = 50000,
61621 + GR_RLIM_DATA_BUMP = 10000,
61622 + GR_RLIM_STACK_BUMP = 1000,
61623 + GR_RLIM_CORE_BUMP = 10000,
61624 + GR_RLIM_RSS_BUMP = 500000,
61625 + GR_RLIM_NPROC_BUMP = 1,
61626 + GR_RLIM_NOFILE_BUMP = 5,
61627 + GR_RLIM_MEMLOCK_BUMP = 50000,
61628 + GR_RLIM_AS_BUMP = 500000,
61629 + GR_RLIM_LOCKS_BUMP = 2,
61630 + GR_RLIM_SIGPENDING_BUMP = 5,
61631 + GR_RLIM_MSGQUEUE_BUMP = 10000,
61632 + GR_RLIM_NICE_BUMP = 1,
61633 + GR_RLIM_RTPRIO_BUMP = 1,
61634 + GR_RLIM_RTTIME_BUMP = 1000000
61635 +};
61636 +
61637 +#endif
61638 diff --git a/include/linux/grinternal.h b/include/linux/grinternal.h
61639 new file mode 100644
61640 index 0000000..c9292f7
61641 --- /dev/null
61642 +++ b/include/linux/grinternal.h
61643 @@ -0,0 +1,223 @@
61644 +#ifndef __GRINTERNAL_H
61645 +#define __GRINTERNAL_H
61646 +
61647 +#ifdef CONFIG_GRKERNSEC
61648 +
61649 +#include <linux/fs.h>
61650 +#include <linux/mnt_namespace.h>
61651 +#include <linux/nsproxy.h>
61652 +#include <linux/gracl.h>
61653 +#include <linux/grdefs.h>
61654 +#include <linux/grmsg.h>
61655 +
61656 +void gr_add_learn_entry(const char *fmt, ...)
61657 + __attribute__ ((format (printf, 1, 2)));
61658 +__u32 gr_search_file(const struct dentry *dentry, const __u32 mode,
61659 + const struct vfsmount *mnt);
61660 +__u32 gr_check_create(const struct dentry *new_dentry,
61661 + const struct dentry *parent,
61662 + const struct vfsmount *mnt, const __u32 mode);
61663 +int gr_check_protected_task(const struct task_struct *task);
61664 +__u32 to_gr_audit(const __u32 reqmode);
61665 +int gr_set_acls(const int type);
61666 +int gr_apply_subject_to_task(struct task_struct *task);
61667 +int gr_acl_is_enabled(void);
61668 +char gr_roletype_to_char(void);
61669 +
61670 +void gr_handle_alertkill(struct task_struct *task);
61671 +char *gr_to_filename(const struct dentry *dentry,
61672 + const struct vfsmount *mnt);
61673 +char *gr_to_filename1(const struct dentry *dentry,
61674 + const struct vfsmount *mnt);
61675 +char *gr_to_filename2(const struct dentry *dentry,
61676 + const struct vfsmount *mnt);
61677 +char *gr_to_filename3(const struct dentry *dentry,
61678 + const struct vfsmount *mnt);
61679 +
61680 +extern int grsec_enable_ptrace_readexec;
61681 +extern int grsec_enable_harden_ptrace;
61682 +extern int grsec_enable_link;
61683 +extern int grsec_enable_fifo;
61684 +extern int grsec_enable_execve;
61685 +extern int grsec_enable_shm;
61686 +extern int grsec_enable_execlog;
61687 +extern int grsec_enable_signal;
61688 +extern int grsec_enable_audit_ptrace;
61689 +extern int grsec_enable_forkfail;
61690 +extern int grsec_enable_time;
61691 +extern int grsec_enable_rofs;
61692 +extern int grsec_enable_chroot_shmat;
61693 +extern int grsec_enable_chroot_mount;
61694 +extern int grsec_enable_chroot_double;
61695 +extern int grsec_enable_chroot_pivot;
61696 +extern int grsec_enable_chroot_chdir;
61697 +extern int grsec_enable_chroot_chmod;
61698 +extern int grsec_enable_chroot_mknod;
61699 +extern int grsec_enable_chroot_fchdir;
61700 +extern int grsec_enable_chroot_nice;
61701 +extern int grsec_enable_chroot_execlog;
61702 +extern int grsec_enable_chroot_caps;
61703 +extern int grsec_enable_chroot_sysctl;
61704 +extern int grsec_enable_chroot_unix;
61705 +extern int grsec_enable_symlinkown;
61706 +extern int grsec_symlinkown_gid;
61707 +extern int grsec_enable_tpe;
61708 +extern int grsec_tpe_gid;
61709 +extern int grsec_enable_tpe_all;
61710 +extern int grsec_enable_tpe_invert;
61711 +extern int grsec_enable_socket_all;
61712 +extern int grsec_socket_all_gid;
61713 +extern int grsec_enable_socket_client;
61714 +extern int grsec_socket_client_gid;
61715 +extern int grsec_enable_socket_server;
61716 +extern int grsec_socket_server_gid;
61717 +extern int grsec_audit_gid;
61718 +extern int grsec_enable_group;
61719 +extern int grsec_enable_audit_textrel;
61720 +extern int grsec_enable_log_rwxmaps;
61721 +extern int grsec_enable_mount;
61722 +extern int grsec_enable_chdir;
61723 +extern int grsec_resource_logging;
61724 +extern int grsec_enable_blackhole;
61725 +extern int grsec_lastack_retries;
61726 +extern int grsec_enable_brute;
61727 +extern int grsec_lock;
61728 +
61729 +extern spinlock_t grsec_alert_lock;
61730 +extern unsigned long grsec_alert_wtime;
61731 +extern unsigned long grsec_alert_fyet;
61732 +
61733 +extern spinlock_t grsec_audit_lock;
61734 +
61735 +extern rwlock_t grsec_exec_file_lock;
61736 +
61737 +#define gr_task_fullpath(tsk) ((tsk)->exec_file ? \
61738 + gr_to_filename2((tsk)->exec_file->f_path.dentry, \
61739 + (tsk)->exec_file->f_vfsmnt) : "/")
61740 +
61741 +#define gr_parent_task_fullpath(tsk) ((tsk)->real_parent->exec_file ? \
61742 + gr_to_filename3((tsk)->real_parent->exec_file->f_path.dentry, \
61743 + (tsk)->real_parent->exec_file->f_vfsmnt) : "/")
61744 +
61745 +#define gr_task_fullpath0(tsk) ((tsk)->exec_file ? \
61746 + gr_to_filename((tsk)->exec_file->f_path.dentry, \
61747 + (tsk)->exec_file->f_vfsmnt) : "/")
61748 +
61749 +#define gr_parent_task_fullpath0(tsk) ((tsk)->real_parent->exec_file ? \
61750 + gr_to_filename1((tsk)->real_parent->exec_file->f_path.dentry, \
61751 + (tsk)->real_parent->exec_file->f_vfsmnt) : "/")
61752 +
61753 +#define proc_is_chrooted(tsk_a) ((tsk_a)->gr_is_chrooted)
61754 +
61755 +#define have_same_root(tsk_a,tsk_b) ((tsk_a)->gr_chroot_dentry == (tsk_b)->gr_chroot_dentry)
61756 +
61757 +#define DEFAULTSECARGS(task, cred, pcred) gr_task_fullpath(task), (task)->comm, \
61758 + (task)->pid, (cred)->uid, \
61759 + (cred)->euid, (cred)->gid, (cred)->egid, \
61760 + gr_parent_task_fullpath(task), \
61761 + (task)->real_parent->comm, (task)->real_parent->pid, \
61762 + (pcred)->uid, (pcred)->euid, \
61763 + (pcred)->gid, (pcred)->egid
61764 +
61765 +#define GR_CHROOT_CAPS {{ \
61766 + CAP_TO_MASK(CAP_LINUX_IMMUTABLE) | CAP_TO_MASK(CAP_NET_ADMIN) | \
61767 + CAP_TO_MASK(CAP_SYS_MODULE) | CAP_TO_MASK(CAP_SYS_RAWIO) | \
61768 + CAP_TO_MASK(CAP_SYS_PACCT) | CAP_TO_MASK(CAP_SYS_ADMIN) | \
61769 + CAP_TO_MASK(CAP_SYS_BOOT) | CAP_TO_MASK(CAP_SYS_TIME) | \
61770 + CAP_TO_MASK(CAP_NET_RAW) | CAP_TO_MASK(CAP_SYS_TTY_CONFIG) | \
61771 + CAP_TO_MASK(CAP_IPC_OWNER) | CAP_TO_MASK(CAP_SETFCAP), \
61772 + CAP_TO_MASK(CAP_SYSLOG) | CAP_TO_MASK(CAP_MAC_ADMIN) }}
61773 +
61774 +#define security_learn(normal_msg,args...) \
61775 +({ \
61776 + read_lock(&grsec_exec_file_lock); \
61777 + gr_add_learn_entry(normal_msg "\n", ## args); \
61778 + read_unlock(&grsec_exec_file_lock); \
61779 +})
61780 +
61781 +enum {
61782 + GR_DO_AUDIT,
61783 + GR_DONT_AUDIT,
61784 + /* used for non-audit messages that we shouldn't kill the task on */
61785 + GR_DONT_AUDIT_GOOD
61786 +};
61787 +
61788 +enum {
61789 + GR_TTYSNIFF,
61790 + GR_RBAC,
61791 + GR_RBAC_STR,
61792 + GR_STR_RBAC,
61793 + GR_RBAC_MODE2,
61794 + GR_RBAC_MODE3,
61795 + GR_FILENAME,
61796 + GR_SYSCTL_HIDDEN,
61797 + GR_NOARGS,
61798 + GR_ONE_INT,
61799 + GR_ONE_INT_TWO_STR,
61800 + GR_ONE_STR,
61801 + GR_STR_INT,
61802 + GR_TWO_STR_INT,
61803 + GR_TWO_INT,
61804 + GR_TWO_U64,
61805 + GR_THREE_INT,
61806 + GR_FIVE_INT_TWO_STR,
61807 + GR_TWO_STR,
61808 + GR_THREE_STR,
61809 + GR_FOUR_STR,
61810 + GR_STR_FILENAME,
61811 + GR_FILENAME_STR,
61812 + GR_FILENAME_TWO_INT,
61813 + GR_FILENAME_TWO_INT_STR,
61814 + GR_TEXTREL,
61815 + GR_PTRACE,
61816 + GR_RESOURCE,
61817 + GR_CAP,
61818 + GR_SIG,
61819 + GR_SIG2,
61820 + GR_CRASH1,
61821 + GR_CRASH2,
61822 + GR_PSACCT,
61823 + GR_RWXMAP
61824 +};
61825 +
61826 +#define gr_log_hidden_sysctl(audit, msg, str) gr_log_varargs(audit, msg, GR_SYSCTL_HIDDEN, str)
61827 +#define gr_log_ttysniff(audit, msg, task) gr_log_varargs(audit, msg, GR_TTYSNIFF, task)
61828 +#define gr_log_fs_rbac_generic(audit, msg, dentry, mnt) gr_log_varargs(audit, msg, GR_RBAC, dentry, mnt)
61829 +#define gr_log_fs_rbac_str(audit, msg, dentry, mnt, str) gr_log_varargs(audit, msg, GR_RBAC_STR, dentry, mnt, str)
61830 +#define gr_log_fs_str_rbac(audit, msg, str, dentry, mnt) gr_log_varargs(audit, msg, GR_STR_RBAC, str, dentry, mnt)
61831 +#define gr_log_fs_rbac_mode2(audit, msg, dentry, mnt, str1, str2) gr_log_varargs(audit, msg, GR_RBAC_MODE2, dentry, mnt, str1, str2)
61832 +#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)
61833 +#define gr_log_fs_generic(audit, msg, dentry, mnt) gr_log_varargs(audit, msg, GR_FILENAME, dentry, mnt)
61834 +#define gr_log_noargs(audit, msg) gr_log_varargs(audit, msg, GR_NOARGS)
61835 +#define gr_log_int(audit, msg, num) gr_log_varargs(audit, msg, GR_ONE_INT, num)
61836 +#define gr_log_int_str2(audit, msg, num, str1, str2) gr_log_varargs(audit, msg, GR_ONE_INT_TWO_STR, num, str1, str2)
61837 +#define gr_log_str(audit, msg, str) gr_log_varargs(audit, msg, GR_ONE_STR, str)
61838 +#define gr_log_str_int(audit, msg, str, num) gr_log_varargs(audit, msg, GR_STR_INT, str, num)
61839 +#define gr_log_int_int(audit, msg, num1, num2) gr_log_varargs(audit, msg, GR_TWO_INT, num1, num2)
61840 +#define gr_log_two_u64(audit, msg, num1, num2) gr_log_varargs(audit, msg, GR_TWO_U64, num1, num2)
61841 +#define gr_log_int3(audit, msg, num1, num2, num3) gr_log_varargs(audit, msg, GR_THREE_INT, num1, num2, num3)
61842 +#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)
61843 +#define gr_log_str_str(audit, msg, str1, str2) gr_log_varargs(audit, msg, GR_TWO_STR, str1, str2)
61844 +#define gr_log_str2_int(audit, msg, str1, str2, num) gr_log_varargs(audit, msg, GR_TWO_STR_INT, str1, str2, num)
61845 +#define gr_log_str3(audit, msg, str1, str2, str3) gr_log_varargs(audit, msg, GR_THREE_STR, str1, str2, str3)
61846 +#define gr_log_str4(audit, msg, str1, str2, str3, str4) gr_log_varargs(audit, msg, GR_FOUR_STR, str1, str2, str3, str4)
61847 +#define gr_log_str_fs(audit, msg, str, dentry, mnt) gr_log_varargs(audit, msg, GR_STR_FILENAME, str, dentry, mnt)
61848 +#define gr_log_fs_str(audit, msg, dentry, mnt, str) gr_log_varargs(audit, msg, GR_FILENAME_STR, dentry, mnt, str)
61849 +#define gr_log_fs_int2(audit, msg, dentry, mnt, num1, num2) gr_log_varargs(audit, msg, GR_FILENAME_TWO_INT, dentry, mnt, num1, num2)
61850 +#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)
61851 +#define gr_log_textrel_ulong_ulong(audit, msg, file, ulong1, ulong2) gr_log_varargs(audit, msg, GR_TEXTREL, file, ulong1, ulong2)
61852 +#define gr_log_ptrace(audit, msg, task) gr_log_varargs(audit, msg, GR_PTRACE, task)
61853 +#define gr_log_res_ulong2_str(audit, msg, task, ulong1, str, ulong2) gr_log_varargs(audit, msg, GR_RESOURCE, task, ulong1, str, ulong2)
61854 +#define gr_log_cap(audit, msg, task, str) gr_log_varargs(audit, msg, GR_CAP, task, str)
61855 +#define gr_log_sig_addr(audit, msg, str, addr) gr_log_varargs(audit, msg, GR_SIG, str, addr)
61856 +#define gr_log_sig_task(audit, msg, task, num) gr_log_varargs(audit, msg, GR_SIG2, task, num)
61857 +#define gr_log_crash1(audit, msg, task, ulong) gr_log_varargs(audit, msg, GR_CRASH1, task, ulong)
61858 +#define gr_log_crash2(audit, msg, task, ulong1) gr_log_varargs(audit, msg, GR_CRASH2, task, ulong1)
61859 +#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)
61860 +#define gr_log_rwxmap(audit, msg, str) gr_log_varargs(audit, msg, GR_RWXMAP, str)
61861 +
61862 +void gr_log_varargs(int audit, const char *msg, int argtypes, ...);
61863 +
61864 +#endif
61865 +
61866 +#endif
61867 diff --git a/include/linux/grmsg.h b/include/linux/grmsg.h
61868 new file mode 100644
61869 index 0000000..54f4e85
61870 --- /dev/null
61871 +++ b/include/linux/grmsg.h
61872 @@ -0,0 +1,110 @@
61873 +#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"
61874 +#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"
61875 +#define GR_PTRACE_ACL_MSG "denied ptrace of %.950s(%.16s:%d) by "
61876 +#define GR_STOPMOD_MSG "denied modification of module state by "
61877 +#define GR_ROFS_BLOCKWRITE_MSG "denied write to block device %.950s by "
61878 +#define GR_ROFS_MOUNT_MSG "denied writable mount of %.950s by "
61879 +#define GR_IOPERM_MSG "denied use of ioperm() by "
61880 +#define GR_IOPL_MSG "denied use of iopl() by "
61881 +#define GR_SHMAT_ACL_MSG "denied attach of shared memory of UID %u, PID %d, ID %u by "
61882 +#define GR_UNIX_CHROOT_MSG "denied connect() to abstract AF_UNIX socket outside of chroot by "
61883 +#define GR_SHMAT_CHROOT_MSG "denied attach of shared memory outside of chroot by "
61884 +#define GR_MEM_READWRITE_MSG "denied access of range %Lx -> %Lx in /dev/mem by "
61885 +#define GR_SYMLINK_MSG "not following symlink %.950s owned by %d.%d by "
61886 +#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"
61887 +#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"
61888 +#define GR_HIDDEN_ACL_MSG "%s access to hidden file %.950s by "
61889 +#define GR_OPEN_ACL_MSG "%s open of %.950s for%s%s by "
61890 +#define GR_CREATE_ACL_MSG "%s create of %.950s for%s%s by "
61891 +#define GR_FIFO_MSG "denied writing FIFO %.950s of %d.%d by "
61892 +#define GR_MKNOD_CHROOT_MSG "denied mknod of %.950s from chroot by "
61893 +#define GR_MKNOD_ACL_MSG "%s mknod of %.950s by "
61894 +#define GR_UNIXCONNECT_ACL_MSG "%s connect() to the unix domain socket %.950s by "
61895 +#define GR_TTYSNIFF_ACL_MSG "terminal being sniffed by IP:%pI4 %.480s[%.16s:%d], parent %.480s[%.16s:%d] against "
61896 +#define GR_MKDIR_ACL_MSG "%s mkdir of %.950s by "
61897 +#define GR_RMDIR_ACL_MSG "%s rmdir of %.950s by "
61898 +#define GR_UNLINK_ACL_MSG "%s unlink of %.950s by "
61899 +#define GR_SYMLINK_ACL_MSG "%s symlink from %.480s to %.480s by "
61900 +#define GR_HARDLINK_MSG "denied hardlink of %.930s (owned by %d.%d) to %.30s for "
61901 +#define GR_LINK_ACL_MSG "%s link of %.480s to %.480s by "
61902 +#define GR_INHERIT_ACL_MSG "successful inherit of %.480s's ACL for %.480s by "
61903 +#define GR_RENAME_ACL_MSG "%s rename of %.480s to %.480s by "
61904 +#define GR_UNSAFESHARE_EXEC_ACL_MSG "denied exec with cloned fs of %.950s by "
61905 +#define GR_PTRACE_EXEC_ACL_MSG "denied ptrace of %.950s by "
61906 +#define GR_EXEC_ACL_MSG "%s execution of %.950s by "
61907 +#define GR_EXEC_TPE_MSG "denied untrusted exec (due to %.70s) of %.950s by "
61908 +#define GR_SEGVSTART_ACL_MSG "possible exploit bruteforcing on " DEFAULTSECMSG " banning uid %u from login for %lu seconds"
61909 +#define GR_SEGVNOSUID_ACL_MSG "possible exploit bruteforcing on " DEFAULTSECMSG " banning execution for %lu seconds"
61910 +#define GR_MOUNT_CHROOT_MSG "denied mount of %.256s as %.930s from chroot by "
61911 +#define GR_PIVOT_CHROOT_MSG "denied pivot_root from chroot by "
61912 +#define GR_TRUNCATE_ACL_MSG "%s truncate of %.950s by "
61913 +#define GR_ATIME_ACL_MSG "%s access time change of %.950s by "
61914 +#define GR_ACCESS_ACL_MSG "%s access of %.950s for%s%s%s by "
61915 +#define GR_CHROOT_CHROOT_MSG "denied double chroot to %.950s by "
61916 +#define GR_CHMOD_CHROOT_MSG "denied chmod +s of %.950s by "
61917 +#define GR_CHMOD_ACL_MSG "%s chmod of %.950s by "
61918 +#define GR_CHROOT_FCHDIR_MSG "denied fchdir outside of chroot to %.950s by "
61919 +#define GR_CHOWN_ACL_MSG "%s chown of %.950s by "
61920 +#define GR_SETXATTR_ACL_MSG "%s setting extended attributes of %.950s by "
61921 +#define GR_WRITLIB_ACL_MSG "denied load of writable library %.950s by "
61922 +#define GR_INITF_ACL_MSG "init_variables() failed %s by "
61923 +#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"
61924 +#define GR_DEV_ACL_MSG "/dev/grsec: %d bytes sent %d required, being fed garbage by "
61925 +#define GR_SHUTS_ACL_MSG "shutdown auth success for "
61926 +#define GR_SHUTF_ACL_MSG "shutdown auth failure for "
61927 +#define GR_SHUTI_ACL_MSG "ignoring shutdown for disabled RBAC system for "
61928 +#define GR_SEGVMODS_ACL_MSG "segvmod auth success for "
61929 +#define GR_SEGVMODF_ACL_MSG "segvmod auth failure for "
61930 +#define GR_SEGVMODI_ACL_MSG "ignoring segvmod for disabled RBAC system for "
61931 +#define GR_ENABLE_ACL_MSG "%s RBAC system loaded by "
61932 +#define GR_ENABLEF_ACL_MSG "unable to load %s for "
61933 +#define GR_RELOADI_ACL_MSG "ignoring reload request for disabled RBAC system"
61934 +#define GR_RELOAD_ACL_MSG "%s RBAC system reloaded by "
61935 +#define GR_RELOADF_ACL_MSG "failed reload of %s for "
61936 +#define GR_SPROLEI_ACL_MSG "ignoring change to special role for disabled RBAC system for "
61937 +#define GR_SPROLES_ACL_MSG "successful change to special role %s (id %d) by "
61938 +#define GR_SPROLEL_ACL_MSG "special role %s (id %d) exited by "
61939 +#define GR_SPROLEF_ACL_MSG "special role %s failure for "
61940 +#define GR_UNSPROLEI_ACL_MSG "ignoring unauth of special role for disabled RBAC system for "
61941 +#define GR_UNSPROLES_ACL_MSG "successful unauth of special role %s (id %d) by "
61942 +#define GR_INVMODE_ACL_MSG "invalid mode %d by "
61943 +#define GR_PRIORITY_CHROOT_MSG "denied priority change of process (%.16s:%d) by "
61944 +#define GR_FAILFORK_MSG "failed fork with errno %s by "
61945 +#define GR_NICE_CHROOT_MSG "denied priority change by "
61946 +#define GR_UNISIGLOG_MSG "%.32s occurred at %p in "
61947 +#define GR_DUALSIGLOG_MSG "signal %d sent to " DEFAULTSECMSG " by "
61948 +#define GR_SIG_ACL_MSG "denied send of signal %d to protected task " DEFAULTSECMSG " by "
61949 +#define GR_SYSCTL_MSG "denied modification of grsecurity sysctl value : %.32s by "
61950 +#define GR_SYSCTL_ACL_MSG "%s sysctl of %.950s for%s%s by "
61951 +#define GR_TIME_MSG "time set by "
61952 +#define GR_DEFACL_MSG "fatal: unable to find subject for (%.16s:%d), loaded by "
61953 +#define GR_MMAP_ACL_MSG "%s executable mmap of %.950s by "
61954 +#define GR_MPROTECT_ACL_MSG "%s executable mprotect of %.950s by "
61955 +#define GR_SOCK_MSG "denied socket(%.16s,%.16s,%.16s) by "
61956 +#define GR_SOCK_NOINET_MSG "denied socket(%.16s,%.16s,%d) by "
61957 +#define GR_BIND_MSG "denied bind() by "
61958 +#define GR_CONNECT_MSG "denied connect() by "
61959 +#define GR_BIND_ACL_MSG "denied bind() to %pI4 port %u sock type %.16s protocol %.16s by "
61960 +#define GR_CONNECT_ACL_MSG "denied connect() to %pI4 port %u sock type %.16s protocol %.16s by "
61961 +#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"
61962 +#define GR_EXEC_CHROOT_MSG "exec of %.980s within chroot by process "
61963 +#define GR_CAP_ACL_MSG "use of %s denied for "
61964 +#define GR_CAP_CHROOT_MSG "use of %s in chroot denied for "
61965 +#define GR_CAP_ACL_MSG2 "use of %s permitted for "
61966 +#define GR_USRCHANGE_ACL_MSG "change to uid %u denied for "
61967 +#define GR_GRPCHANGE_ACL_MSG "change to gid %u denied for "
61968 +#define GR_REMOUNT_AUDIT_MSG "remount of %.256s by "
61969 +#define GR_UNMOUNT_AUDIT_MSG "unmount of %.256s by "
61970 +#define GR_MOUNT_AUDIT_MSG "mount of %.256s to %.256s by "
61971 +#define GR_CHDIR_AUDIT_MSG "chdir to %.980s by "
61972 +#define GR_EXEC_AUDIT_MSG "exec of %.930s (%.128s) by "
61973 +#define GR_RESOURCE_MSG "denied resource overstep by requesting %lu for %.16s against limit %lu for "
61974 +#define GR_RWXMMAP_MSG "denied RWX mmap of %.950s by "
61975 +#define GR_RWXMPROTECT_MSG "denied RWX mprotect of %.950s by "
61976 +#define GR_TEXTREL_AUDIT_MSG "text relocation in %s, VMA:0x%08lx 0x%08lx by "
61977 +#define GR_VM86_MSG "denied use of vm86 by "
61978 +#define GR_PTRACE_AUDIT_MSG "process %.950s(%.16s:%d) attached to via ptrace by "
61979 +#define GR_PTRACE_READEXEC_MSG "denied ptrace of unreadable binary %.950s by "
61980 +#define GR_INIT_TRANSFER_MSG "persistent special role transferred privilege to init by "
61981 +#define GR_BADPROCPID_MSG "denied read of sensitive /proc/pid/%s entry via fd passed across exec by "
61982 +#define GR_SYMLINKOWNER_MSG "denied following symlink %.950s since symlink owner %u does not match target owner %u, by "
61983 diff --git a/include/linux/grsecurity.h b/include/linux/grsecurity.h
61984 new file mode 100644
61985 index 0000000..38bfb04
61986 --- /dev/null
61987 +++ b/include/linux/grsecurity.h
61988 @@ -0,0 +1,233 @@
61989 +#ifndef GR_SECURITY_H
61990 +#define GR_SECURITY_H
61991 +#include <linux/fs.h>
61992 +#include <linux/fs_struct.h>
61993 +#include <linux/binfmts.h>
61994 +#include <linux/gracl.h>
61995 +
61996 +/* notify of brain-dead configs */
61997 +#if defined(CONFIG_GRKERNSEC_PROC_USER) && defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
61998 +#error "CONFIG_GRKERNSEC_PROC_USER and CONFIG_GRKERNSEC_PROC_USERGROUP cannot both be enabled."
61999 +#endif
62000 +#if defined(CONFIG_PAX_NOEXEC) && !defined(CONFIG_PAX_PAGEEXEC) && !defined(CONFIG_PAX_SEGMEXEC) && !defined(CONFIG_PAX_KERNEXEC)
62001 +#error "CONFIG_PAX_NOEXEC enabled, but PAGEEXEC, SEGMEXEC, and KERNEXEC are disabled."
62002 +#endif
62003 +#if defined(CONFIG_PAX_ASLR) && !defined(CONFIG_PAX_RANDKSTACK) && !defined(CONFIG_PAX_RANDUSTACK) && !defined(CONFIG_PAX_RANDMMAP)
62004 +#error "CONFIG_PAX_ASLR enabled, but RANDKSTACK, RANDUSTACK, and RANDMMAP are disabled."
62005 +#endif
62006 +#if defined(CONFIG_PAX) && !defined(CONFIG_PAX_NOEXEC) && !defined(CONFIG_PAX_ASLR)
62007 +#error "CONFIG_PAX enabled, but no PaX options are enabled."
62008 +#endif
62009 +
62010 +#include <linux/compat.h>
62011 +
62012 +struct user_arg_ptr {
62013 +#ifdef CONFIG_COMPAT
62014 + bool is_compat;
62015 +#endif
62016 + union {
62017 + const char __user *const __user *native;
62018 +#ifdef CONFIG_COMPAT
62019 + compat_uptr_t __user *compat;
62020 +#endif
62021 + } ptr;
62022 +};
62023 +
62024 +void gr_handle_brute_attach(struct task_struct *p, unsigned long mm_flags);
62025 +void gr_handle_brute_check(void);
62026 +void gr_handle_kernel_exploit(void);
62027 +int gr_process_user_ban(void);
62028 +
62029 +char gr_roletype_to_char(void);
62030 +
62031 +int gr_acl_enable_at_secure(void);
62032 +
62033 +int gr_check_user_change(int real, int effective, int fs);
62034 +int gr_check_group_change(int real, int effective, int fs);
62035 +
62036 +void gr_del_task_from_ip_table(struct task_struct *p);
62037 +
62038 +int gr_pid_is_chrooted(struct task_struct *p);
62039 +int gr_handle_chroot_fowner(struct pid *pid, enum pid_type type);
62040 +int gr_handle_chroot_nice(void);
62041 +int gr_handle_chroot_sysctl(const int op);
62042 +int gr_handle_chroot_setpriority(struct task_struct *p,
62043 + const int niceval);
62044 +int gr_chroot_fchdir(struct dentry *u_dentry, struct vfsmount *u_mnt);
62045 +int gr_handle_chroot_chroot(const struct dentry *dentry,
62046 + const struct vfsmount *mnt);
62047 +void gr_handle_chroot_chdir(struct path *path);
62048 +int gr_handle_chroot_chmod(const struct dentry *dentry,
62049 + const struct vfsmount *mnt, const int mode);
62050 +int gr_handle_chroot_mknod(const struct dentry *dentry,
62051 + const struct vfsmount *mnt, const int mode);
62052 +int gr_handle_chroot_mount(const struct dentry *dentry,
62053 + const struct vfsmount *mnt,
62054 + const char *dev_name);
62055 +int gr_handle_chroot_pivot(void);
62056 +int gr_handle_chroot_unix(const pid_t pid);
62057 +
62058 +int gr_handle_rawio(const struct inode *inode);
62059 +
62060 +void gr_handle_ioperm(void);
62061 +void gr_handle_iopl(void);
62062 +
62063 +umode_t gr_acl_umask(void);
62064 +
62065 +int gr_tpe_allow(const struct file *file);
62066 +
62067 +void gr_set_chroot_entries(struct task_struct *task, struct path *path);
62068 +void gr_clear_chroot_entries(struct task_struct *task);
62069 +
62070 +void gr_log_forkfail(const int retval);
62071 +void gr_log_timechange(void);
62072 +void gr_log_signal(const int sig, const void *addr, const struct task_struct *t);
62073 +void gr_log_chdir(const struct dentry *dentry,
62074 + const struct vfsmount *mnt);
62075 +void gr_log_chroot_exec(const struct dentry *dentry,
62076 + const struct vfsmount *mnt);
62077 +void gr_handle_exec_args(struct linux_binprm *bprm, struct user_arg_ptr argv);
62078 +void gr_log_remount(const char *devname, const int retval);
62079 +void gr_log_unmount(const char *devname, const int retval);
62080 +void gr_log_mount(const char *from, const char *to, const int retval);
62081 +void gr_log_textrel(struct vm_area_struct *vma);
62082 +void gr_log_rwxmmap(struct file *file);
62083 +void gr_log_rwxmprotect(struct file *file);
62084 +
62085 +int gr_handle_follow_link(const struct inode *parent,
62086 + const struct inode *inode,
62087 + const struct dentry *dentry,
62088 + const struct vfsmount *mnt);
62089 +int gr_handle_fifo(const struct dentry *dentry,
62090 + const struct vfsmount *mnt,
62091 + const struct dentry *dir, const int flag,
62092 + const int acc_mode);
62093 +int gr_handle_hardlink(const struct dentry *dentry,
62094 + const struct vfsmount *mnt,
62095 + struct inode *inode,
62096 + const int mode, const char *to);
62097 +
62098 +int gr_is_capable(const int cap);
62099 +int gr_is_capable_nolog(const int cap);
62100 +int gr_task_is_capable(const struct task_struct *task, const struct cred *cred, const int cap);
62101 +int gr_task_is_capable_nolog(const struct task_struct *task, const int cap);
62102 +
62103 +void gr_learn_resource(const struct task_struct *task, const int limit,
62104 + const unsigned long wanted, const int gt);
62105 +void gr_copy_label(struct task_struct *tsk);
62106 +void gr_handle_crash(struct task_struct *task, const int sig);
62107 +int gr_handle_signal(const struct task_struct *p, const int sig);
62108 +int gr_check_crash_uid(const uid_t uid);
62109 +int gr_check_protected_task(const struct task_struct *task);
62110 +int gr_check_protected_task_fowner(struct pid *pid, enum pid_type type);
62111 +int gr_acl_handle_mmap(const struct file *file,
62112 + const unsigned long prot);
62113 +int gr_acl_handle_mprotect(const struct file *file,
62114 + const unsigned long prot);
62115 +int gr_check_hidden_task(const struct task_struct *tsk);
62116 +__u32 gr_acl_handle_truncate(const struct dentry *dentry,
62117 + const struct vfsmount *mnt);
62118 +__u32 gr_acl_handle_utime(const struct dentry *dentry,
62119 + const struct vfsmount *mnt);
62120 +__u32 gr_acl_handle_access(const struct dentry *dentry,
62121 + const struct vfsmount *mnt, const int fmode);
62122 +__u32 gr_acl_handle_chmod(const struct dentry *dentry,
62123 + const struct vfsmount *mnt, umode_t *mode);
62124 +__u32 gr_acl_handle_chown(const struct dentry *dentry,
62125 + const struct vfsmount *mnt);
62126 +__u32 gr_acl_handle_setxattr(const struct dentry *dentry,
62127 + const struct vfsmount *mnt);
62128 +int gr_handle_ptrace(struct task_struct *task, const long request);
62129 +int gr_handle_proc_ptrace(struct task_struct *task);
62130 +__u32 gr_acl_handle_execve(const struct dentry *dentry,
62131 + const struct vfsmount *mnt);
62132 +int gr_check_crash_exec(const struct file *filp);
62133 +int gr_acl_is_enabled(void);
62134 +void gr_set_kernel_label(struct task_struct *task);
62135 +void gr_set_role_label(struct task_struct *task, const uid_t uid,
62136 + const gid_t gid);
62137 +int gr_set_proc_label(const struct dentry *dentry,
62138 + const struct vfsmount *mnt,
62139 + const int unsafe_flags);
62140 +__u32 gr_acl_handle_hidden_file(const struct dentry *dentry,
62141 + const struct vfsmount *mnt);
62142 +__u32 gr_acl_handle_open(const struct dentry *dentry,
62143 + const struct vfsmount *mnt, int acc_mode);
62144 +__u32 gr_acl_handle_creat(const struct dentry *dentry,
62145 + const struct dentry *p_dentry,
62146 + const struct vfsmount *p_mnt,
62147 + int open_flags, int acc_mode, const int imode);
62148 +void gr_handle_create(const struct dentry *dentry,
62149 + const struct vfsmount *mnt);
62150 +void gr_handle_proc_create(const struct dentry *dentry,
62151 + const struct inode *inode);
62152 +__u32 gr_acl_handle_mknod(const struct dentry *new_dentry,
62153 + const struct dentry *parent_dentry,
62154 + const struct vfsmount *parent_mnt,
62155 + const int mode);
62156 +__u32 gr_acl_handle_mkdir(const struct dentry *new_dentry,
62157 + const struct dentry *parent_dentry,
62158 + const struct vfsmount *parent_mnt);
62159 +__u32 gr_acl_handle_rmdir(const struct dentry *dentry,
62160 + const struct vfsmount *mnt);
62161 +void gr_handle_delete(const ino_t ino, const dev_t dev);
62162 +__u32 gr_acl_handle_unlink(const struct dentry *dentry,
62163 + const struct vfsmount *mnt);
62164 +__u32 gr_acl_handle_symlink(const struct dentry *new_dentry,
62165 + const struct dentry *parent_dentry,
62166 + const struct vfsmount *parent_mnt,
62167 + const char *from);
62168 +__u32 gr_acl_handle_link(const struct dentry *new_dentry,
62169 + const struct dentry *parent_dentry,
62170 + const struct vfsmount *parent_mnt,
62171 + const struct dentry *old_dentry,
62172 + const struct vfsmount *old_mnt, const char *to);
62173 +int gr_handle_symlink_owner(const struct path *link, const struct inode *target);
62174 +int gr_acl_handle_rename(struct dentry *new_dentry,
62175 + struct dentry *parent_dentry,
62176 + const struct vfsmount *parent_mnt,
62177 + struct dentry *old_dentry,
62178 + struct inode *old_parent_inode,
62179 + struct vfsmount *old_mnt, const char *newname);
62180 +void gr_handle_rename(struct inode *old_dir, struct inode *new_dir,
62181 + struct dentry *old_dentry,
62182 + struct dentry *new_dentry,
62183 + struct vfsmount *mnt, const __u8 replace);
62184 +__u32 gr_check_link(const struct dentry *new_dentry,
62185 + const struct dentry *parent_dentry,
62186 + const struct vfsmount *parent_mnt,
62187 + const struct dentry *old_dentry,
62188 + const struct vfsmount *old_mnt);
62189 +int gr_acl_handle_filldir(const struct file *file, const char *name,
62190 + const unsigned int namelen, const ino_t ino);
62191 +
62192 +__u32 gr_acl_handle_unix(const struct dentry *dentry,
62193 + const struct vfsmount *mnt);
62194 +void gr_acl_handle_exit(void);
62195 +void gr_acl_handle_psacct(struct task_struct *task, const long code);
62196 +int gr_acl_handle_procpidmem(const struct task_struct *task);
62197 +int gr_handle_rofs_mount(struct dentry *dentry, struct vfsmount *mnt, int mnt_flags);
62198 +int gr_handle_rofs_blockwrite(struct dentry *dentry, struct vfsmount *mnt, int acc_mode);
62199 +void gr_audit_ptrace(struct task_struct *task);
62200 +dev_t gr_get_dev_from_dentry(struct dentry *dentry);
62201 +
62202 +int gr_ptrace_readexec(struct file *file, int unsafe_flags);
62203 +
62204 +#ifdef CONFIG_GRKERNSEC
62205 +void task_grsec_rbac(struct seq_file *m, struct task_struct *p);
62206 +void gr_handle_vm86(void);
62207 +void gr_handle_mem_readwrite(u64 from, u64 to);
62208 +
62209 +void gr_log_badprocpid(const char *entry);
62210 +
62211 +extern int grsec_enable_dmesg;
62212 +extern int grsec_disable_privio;
62213 +#ifdef CONFIG_GRKERNSEC_CHROOT_FINDTASK
62214 +extern int grsec_enable_chroot_findtask;
62215 +#endif
62216 +#ifdef CONFIG_GRKERNSEC_SETXID
62217 +extern int grsec_enable_setxid;
62218 +#endif
62219 +#endif
62220 +
62221 +#endif
62222 diff --git a/include/linux/grsock.h b/include/linux/grsock.h
62223 new file mode 100644
62224 index 0000000..e7ffaaf
62225 --- /dev/null
62226 +++ b/include/linux/grsock.h
62227 @@ -0,0 +1,19 @@
62228 +#ifndef __GRSOCK_H
62229 +#define __GRSOCK_H
62230 +
62231 +extern void gr_attach_curr_ip(const struct sock *sk);
62232 +extern int gr_handle_sock_all(const int family, const int type,
62233 + const int protocol);
62234 +extern int gr_handle_sock_server(const struct sockaddr *sck);
62235 +extern int gr_handle_sock_server_other(const struct sock *sck);
62236 +extern int gr_handle_sock_client(const struct sockaddr *sck);
62237 +extern int gr_search_connect(struct socket * sock,
62238 + struct sockaddr_in * addr);
62239 +extern int gr_search_bind(struct socket * sock,
62240 + struct sockaddr_in * addr);
62241 +extern int gr_search_listen(struct socket * sock);
62242 +extern int gr_search_accept(struct socket * sock);
62243 +extern int gr_search_socket(const int domain, const int type,
62244 + const int protocol);
62245 +
62246 +#endif
62247 diff --git a/include/linux/hid.h b/include/linux/hid.h
62248 index 449fa38..b37c8cc 100644
62249 --- a/include/linux/hid.h
62250 +++ b/include/linux/hid.h
62251 @@ -704,7 +704,7 @@ struct hid_ll_driver {
62252 unsigned int code, int value);
62253
62254 int (*parse)(struct hid_device *hdev);
62255 -};
62256 +} __no_const;
62257
62258 #define PM_HINT_FULLON 1<<5
62259 #define PM_HINT_NORMAL 1<<1
62260 diff --git a/include/linux/highmem.h b/include/linux/highmem.h
62261 index d3999b4..1304cb4 100644
62262 --- a/include/linux/highmem.h
62263 +++ b/include/linux/highmem.h
62264 @@ -221,6 +221,18 @@ static inline void clear_highpage(struct page *page)
62265 kunmap_atomic(kaddr);
62266 }
62267
62268 +static inline void sanitize_highpage(struct page *page)
62269 +{
62270 + void *kaddr;
62271 + unsigned long flags;
62272 +
62273 + local_irq_save(flags);
62274 + kaddr = kmap_atomic(page);
62275 + clear_page(kaddr);
62276 + kunmap_atomic(kaddr);
62277 + local_irq_restore(flags);
62278 +}
62279 +
62280 static inline void zero_user_segments(struct page *page,
62281 unsigned start1, unsigned end1,
62282 unsigned start2, unsigned end2)
62283 diff --git a/include/linux/i2c.h b/include/linux/i2c.h
62284 index ddfa041..a44cfff 100644
62285 --- a/include/linux/i2c.h
62286 +++ b/include/linux/i2c.h
62287 @@ -366,6 +366,7 @@ struct i2c_algorithm {
62288 /* To determine what the adapter supports */
62289 u32 (*functionality) (struct i2c_adapter *);
62290 };
62291 +typedef struct i2c_algorithm __no_const i2c_algorithm_no_const;
62292
62293 /*
62294 * i2c_adapter is the structure used to identify a physical i2c bus along
62295 diff --git a/include/linux/i2o.h b/include/linux/i2o.h
62296 index d23c3c2..eb63c81 100644
62297 --- a/include/linux/i2o.h
62298 +++ b/include/linux/i2o.h
62299 @@ -565,7 +565,7 @@ struct i2o_controller {
62300 struct i2o_device *exec; /* Executive */
62301 #if BITS_PER_LONG == 64
62302 spinlock_t context_list_lock; /* lock for context_list */
62303 - atomic_t context_list_counter; /* needed for unique contexts */
62304 + atomic_unchecked_t context_list_counter; /* needed for unique contexts */
62305 struct list_head context_list; /* list of context id's
62306 and pointers */
62307 #endif
62308 diff --git a/include/linux/if_team.h b/include/linux/if_team.h
62309 index 8185f57..7b2d222 100644
62310 --- a/include/linux/if_team.h
62311 +++ b/include/linux/if_team.h
62312 @@ -74,6 +74,7 @@ struct team_mode_ops {
62313 void (*port_leave)(struct team *team, struct team_port *port);
62314 void (*port_change_mac)(struct team *team, struct team_port *port);
62315 };
62316 +typedef struct team_mode_ops __no_const team_mode_ops_no_const;
62317
62318 enum team_option_type {
62319 TEAM_OPTION_TYPE_U32,
62320 @@ -136,7 +137,7 @@ struct team {
62321 struct list_head option_inst_list; /* list of option instances */
62322
62323 const struct team_mode *mode;
62324 - struct team_mode_ops ops;
62325 + team_mode_ops_no_const ops;
62326 long mode_priv[TEAM_MODE_PRIV_LONGS];
62327 };
62328
62329 diff --git a/include/linux/init.h b/include/linux/init.h
62330 index 6b95109..bcbdd68 100644
62331 --- a/include/linux/init.h
62332 +++ b/include/linux/init.h
62333 @@ -39,9 +39,15 @@
62334 * Also note, that this data cannot be "const".
62335 */
62336
62337 +#ifdef MODULE
62338 +#define add_latent_entropy
62339 +#else
62340 +#define add_latent_entropy __latent_entropy
62341 +#endif
62342 +
62343 /* These are for everybody (although not all archs will actually
62344 discard it in modules) */
62345 -#define __init __section(.init.text) __cold notrace
62346 +#define __init __section(.init.text) __cold notrace add_latent_entropy
62347 #define __initdata __section(.init.data)
62348 #define __initconst __section(.init.rodata)
62349 #define __exitdata __section(.exit.data)
62350 @@ -83,7 +89,7 @@
62351 #define __exit __section(.exit.text) __exitused __cold notrace
62352
62353 /* Used for HOTPLUG */
62354 -#define __devinit __section(.devinit.text) __cold notrace
62355 +#define __devinit __section(.devinit.text) __cold notrace add_latent_entropy
62356 #define __devinitdata __section(.devinit.data)
62357 #define __devinitconst __section(.devinit.rodata)
62358 #define __devexit __section(.devexit.text) __exitused __cold notrace
62359 @@ -91,7 +97,7 @@
62360 #define __devexitconst __section(.devexit.rodata)
62361
62362 /* Used for HOTPLUG_CPU */
62363 -#define __cpuinit __section(.cpuinit.text) __cold notrace
62364 +#define __cpuinit __section(.cpuinit.text) __cold notrace add_latent_entropy
62365 #define __cpuinitdata __section(.cpuinit.data)
62366 #define __cpuinitconst __section(.cpuinit.rodata)
62367 #define __cpuexit __section(.cpuexit.text) __exitused __cold notrace
62368 @@ -99,7 +105,7 @@
62369 #define __cpuexitconst __section(.cpuexit.rodata)
62370
62371 /* Used for MEMORY_HOTPLUG */
62372 -#define __meminit __section(.meminit.text) __cold notrace
62373 +#define __meminit __section(.meminit.text) __cold notrace add_latent_entropy
62374 #define __meminitdata __section(.meminit.data)
62375 #define __meminitconst __section(.meminit.rodata)
62376 #define __memexit __section(.memexit.text) __exitused __cold notrace
62377 @@ -294,13 +300,13 @@ void __init parse_early_options(char *cmdline);
62378
62379 /* Each module must use one module_init(). */
62380 #define module_init(initfn) \
62381 - static inline initcall_t __inittest(void) \
62382 + static inline __used initcall_t __inittest(void) \
62383 { return initfn; } \
62384 int init_module(void) __attribute__((alias(#initfn)));
62385
62386 /* This is only required if you want to be unloadable. */
62387 #define module_exit(exitfn) \
62388 - static inline exitcall_t __exittest(void) \
62389 + static inline __used exitcall_t __exittest(void) \
62390 { return exitfn; } \
62391 void cleanup_module(void) __attribute__((alias(#exitfn)));
62392
62393 diff --git a/include/linux/init_task.h b/include/linux/init_task.h
62394 index 9e65eff..b131e8b 100644
62395 --- a/include/linux/init_task.h
62396 +++ b/include/linux/init_task.h
62397 @@ -134,6 +134,12 @@ extern struct cred init_cred;
62398
62399 #define INIT_TASK_COMM "swapper"
62400
62401 +#ifdef CONFIG_X86
62402 +#define INIT_TASK_THREAD_INFO .tinfo = INIT_THREAD_INFO,
62403 +#else
62404 +#define INIT_TASK_THREAD_INFO
62405 +#endif
62406 +
62407 /*
62408 * INIT_TASK is used to set up the first task table, touch at
62409 * your own risk!. Base=0, limit=0x1fffff (=2MB)
62410 @@ -172,6 +178,7 @@ extern struct cred init_cred;
62411 RCU_INIT_POINTER(.cred, &init_cred), \
62412 .comm = INIT_TASK_COMM, \
62413 .thread = INIT_THREAD, \
62414 + INIT_TASK_THREAD_INFO \
62415 .fs = &init_fs, \
62416 .files = &init_files, \
62417 .signal = &init_signals, \
62418 diff --git a/include/linux/intel-iommu.h b/include/linux/intel-iommu.h
62419 index e6ca56d..8583707 100644
62420 --- a/include/linux/intel-iommu.h
62421 +++ b/include/linux/intel-iommu.h
62422 @@ -296,7 +296,7 @@ struct iommu_flush {
62423 u8 fm, u64 type);
62424 void (*flush_iotlb)(struct intel_iommu *iommu, u16 did, u64 addr,
62425 unsigned int size_order, u64 type);
62426 -};
62427 +} __no_const;
62428
62429 enum {
62430 SR_DMAR_FECTL_REG,
62431 diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h
62432 index e68a8e5..811b9af 100644
62433 --- a/include/linux/interrupt.h
62434 +++ b/include/linux/interrupt.h
62435 @@ -435,7 +435,7 @@ enum
62436 /* map softirq index to softirq name. update 'softirq_to_name' in
62437 * kernel/softirq.c when adding a new softirq.
62438 */
62439 -extern char *softirq_to_name[NR_SOFTIRQS];
62440 +extern const char * const softirq_to_name[NR_SOFTIRQS];
62441
62442 /* softirq mask and active fields moved to irq_cpustat_t in
62443 * asm/hardirq.h to get better cache usage. KAO
62444 @@ -443,12 +443,12 @@ extern char *softirq_to_name[NR_SOFTIRQS];
62445
62446 struct softirq_action
62447 {
62448 - void (*action)(struct softirq_action *);
62449 + void (*action)(void);
62450 };
62451
62452 asmlinkage void do_softirq(void);
62453 asmlinkage void __do_softirq(void);
62454 -extern void open_softirq(int nr, void (*action)(struct softirq_action *));
62455 +extern void open_softirq(int nr, void (*action)(void));
62456 extern void softirq_init(void);
62457 extern void __raise_softirq_irqoff(unsigned int nr);
62458
62459 diff --git a/include/linux/kallsyms.h b/include/linux/kallsyms.h
62460 index 6883e19..06992b1 100644
62461 --- a/include/linux/kallsyms.h
62462 +++ b/include/linux/kallsyms.h
62463 @@ -15,7 +15,8 @@
62464
62465 struct module;
62466
62467 -#ifdef CONFIG_KALLSYMS
62468 +#if !defined(__INCLUDED_BY_HIDESYM) || !defined(CONFIG_KALLSYMS)
62469 +#if defined(CONFIG_KALLSYMS) && !defined(CONFIG_GRKERNSEC_HIDESYM)
62470 /* Lookup the address for a symbol. Returns 0 if not found. */
62471 unsigned long kallsyms_lookup_name(const char *name);
62472
62473 @@ -106,6 +107,17 @@ static inline int lookup_symbol_attrs(unsigned long addr, unsigned long *size, u
62474 /* Stupid that this does nothing, but I didn't create this mess. */
62475 #define __print_symbol(fmt, addr)
62476 #endif /*CONFIG_KALLSYMS*/
62477 +#else /* when included by kallsyms.c, vsnprintf.c, or
62478 + arch/x86/kernel/dumpstack.c, with HIDESYM enabled */
62479 +extern void __print_symbol(const char *fmt, unsigned long address);
62480 +extern int sprint_backtrace(char *buffer, unsigned long address);
62481 +extern int sprint_symbol(char *buffer, unsigned long address);
62482 +extern int sprint_symbol_no_offset(char *buffer, unsigned long address);
62483 +const char *kallsyms_lookup(unsigned long addr,
62484 + unsigned long *symbolsize,
62485 + unsigned long *offset,
62486 + char **modname, char *namebuf);
62487 +#endif
62488
62489 /* This macro allows us to keep printk typechecking */
62490 static __printf(1, 2)
62491 diff --git a/include/linux/kgdb.h b/include/linux/kgdb.h
62492 index c4d2fc1..5df9c19 100644
62493 --- a/include/linux/kgdb.h
62494 +++ b/include/linux/kgdb.h
62495 @@ -53,7 +53,7 @@ extern int kgdb_connected;
62496 extern int kgdb_io_module_registered;
62497
62498 extern atomic_t kgdb_setting_breakpoint;
62499 -extern atomic_t kgdb_cpu_doing_single_step;
62500 +extern atomic_unchecked_t kgdb_cpu_doing_single_step;
62501
62502 extern struct task_struct *kgdb_usethread;
62503 extern struct task_struct *kgdb_contthread;
62504 @@ -252,7 +252,7 @@ struct kgdb_arch {
62505 void (*disable_hw_break)(struct pt_regs *regs);
62506 void (*remove_all_hw_break)(void);
62507 void (*correct_hw_break)(void);
62508 -};
62509 +} __do_const;
62510
62511 /**
62512 * struct kgdb_io - Describe the interface for an I/O driver to talk with KGDB.
62513 @@ -277,7 +277,7 @@ struct kgdb_io {
62514 void (*pre_exception) (void);
62515 void (*post_exception) (void);
62516 int is_console;
62517 -};
62518 +} __do_const;
62519
62520 extern struct kgdb_arch arch_kgdb_ops;
62521
62522 diff --git a/include/linux/kmod.h b/include/linux/kmod.h
62523 index 5398d58..5883a34 100644
62524 --- a/include/linux/kmod.h
62525 +++ b/include/linux/kmod.h
62526 @@ -34,6 +34,8 @@ extern char modprobe_path[]; /* for sysctl */
62527 * usually useless though. */
62528 extern __printf(2, 3)
62529 int __request_module(bool wait, const char *name, ...);
62530 +extern __printf(3, 4)
62531 +int ___request_module(bool wait, char *param_name, const char *name, ...);
62532 #define request_module(mod...) __request_module(true, mod)
62533 #define request_module_nowait(mod...) __request_module(false, mod)
62534 #define try_then_request_module(x, mod...) \
62535 diff --git a/include/linux/kref.h b/include/linux/kref.h
62536 index 9c07dce..a92fa71 100644
62537 --- a/include/linux/kref.h
62538 +++ b/include/linux/kref.h
62539 @@ -63,7 +63,7 @@ static inline void kref_get(struct kref *kref)
62540 static inline int kref_sub(struct kref *kref, unsigned int count,
62541 void (*release)(struct kref *kref))
62542 {
62543 - WARN_ON(release == NULL);
62544 + BUG_ON(release == NULL);
62545
62546 if (atomic_sub_and_test((int) count, &kref->refcount)) {
62547 release(kref);
62548 diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
62549 index 96c158a..1864db5 100644
62550 --- a/include/linux/kvm_host.h
62551 +++ b/include/linux/kvm_host.h
62552 @@ -345,7 +345,7 @@ void kvm_vcpu_uninit(struct kvm_vcpu *vcpu);
62553 void vcpu_load(struct kvm_vcpu *vcpu);
62554 void vcpu_put(struct kvm_vcpu *vcpu);
62555
62556 -int kvm_init(void *opaque, unsigned vcpu_size, unsigned vcpu_align,
62557 +int kvm_init(const void *opaque, unsigned vcpu_size, unsigned vcpu_align,
62558 struct module *module);
62559 void kvm_exit(void);
62560
62561 @@ -511,7 +511,7 @@ int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu,
62562 struct kvm_guest_debug *dbg);
62563 int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run);
62564
62565 -int kvm_arch_init(void *opaque);
62566 +int kvm_arch_init(const void *opaque);
62567 void kvm_arch_exit(void);
62568
62569 int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu);
62570 diff --git a/include/linux/libata.h b/include/linux/libata.h
62571 index 6e887c7..4539601 100644
62572 --- a/include/linux/libata.h
62573 +++ b/include/linux/libata.h
62574 @@ -910,7 +910,7 @@ struct ata_port_operations {
62575 * fields must be pointers.
62576 */
62577 const struct ata_port_operations *inherits;
62578 -};
62579 +} __do_const;
62580
62581 struct ata_port_info {
62582 unsigned long flags;
62583 diff --git a/include/linux/memory.h b/include/linux/memory.h
62584 index 1ac7f6e..a5794d0 100644
62585 --- a/include/linux/memory.h
62586 +++ b/include/linux/memory.h
62587 @@ -143,7 +143,7 @@ struct memory_accessor {
62588 size_t count);
62589 ssize_t (*write)(struct memory_accessor *, const char *buf,
62590 off_t offset, size_t count);
62591 -};
62592 +} __no_const;
62593
62594 /*
62595 * Kernel text modification mutex, used for code patching. Users of this lock
62596 diff --git a/include/linux/mfd/abx500.h b/include/linux/mfd/abx500.h
62597 index 1318ca6..7521340 100644
62598 --- a/include/linux/mfd/abx500.h
62599 +++ b/include/linux/mfd/abx500.h
62600 @@ -452,6 +452,7 @@ struct abx500_ops {
62601 int (*event_registers_startup_state_get) (struct device *, u8 *);
62602 int (*startup_irq_enabled) (struct device *, unsigned int);
62603 };
62604 +typedef struct abx500_ops __no_const abx500_ops_no_const;
62605
62606 int abx500_register_ops(struct device *core_dev, struct abx500_ops *ops);
62607 void abx500_remove_ops(struct device *dev);
62608 diff --git a/include/linux/mfd/abx500/ux500_chargalg.h b/include/linux/mfd/abx500/ux500_chargalg.h
62609 index 9b07725..3d55001 100644
62610 --- a/include/linux/mfd/abx500/ux500_chargalg.h
62611 +++ b/include/linux/mfd/abx500/ux500_chargalg.h
62612 @@ -19,7 +19,7 @@ struct ux500_charger_ops {
62613 int (*enable) (struct ux500_charger *, int, int, int);
62614 int (*kick_wd) (struct ux500_charger *);
62615 int (*update_curr) (struct ux500_charger *, int);
62616 -};
62617 +} __no_const;
62618
62619 /**
62620 * struct ux500_charger - power supply ux500 charger sub class
62621 diff --git a/include/linux/mm.h b/include/linux/mm.h
62622 index f9f279c..198da78 100644
62623 --- a/include/linux/mm.h
62624 +++ b/include/linux/mm.h
62625 @@ -116,7 +116,14 @@ extern unsigned int kobjsize(const void *objp);
62626
62627 #define VM_CAN_NONLINEAR 0x08000000 /* Has ->fault & does nonlinear pages */
62628 #define VM_MIXEDMAP 0x10000000 /* Can contain "struct page" and pure PFN pages */
62629 +
62630 +#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_X86_32)
62631 +#define VM_SAO 0x00000000 /* Strong Access Ordering (powerpc) */
62632 +#define VM_PAGEEXEC 0x20000000 /* vma->vm_page_prot needs special handling */
62633 +#else
62634 #define VM_SAO 0x20000000 /* Strong Access Ordering (powerpc) */
62635 +#endif
62636 +
62637 #define VM_PFN_AT_MMAP 0x40000000 /* PFNMAP vma that is fully mapped at mmap time */
62638 #define VM_MERGEABLE 0x80000000 /* KSM may merge identical pages */
62639
62640 @@ -1009,34 +1016,6 @@ int set_page_dirty(struct page *page);
62641 int set_page_dirty_lock(struct page *page);
62642 int clear_page_dirty_for_io(struct page *page);
62643
62644 -/* Is the vma a continuation of the stack vma above it? */
62645 -static inline int vma_growsdown(struct vm_area_struct *vma, unsigned long addr)
62646 -{
62647 - return vma && (vma->vm_end == addr) && (vma->vm_flags & VM_GROWSDOWN);
62648 -}
62649 -
62650 -static inline int stack_guard_page_start(struct vm_area_struct *vma,
62651 - unsigned long addr)
62652 -{
62653 - return (vma->vm_flags & VM_GROWSDOWN) &&
62654 - (vma->vm_start == addr) &&
62655 - !vma_growsdown(vma->vm_prev, addr);
62656 -}
62657 -
62658 -/* Is the vma a continuation of the stack vma below it? */
62659 -static inline int vma_growsup(struct vm_area_struct *vma, unsigned long addr)
62660 -{
62661 - return vma && (vma->vm_start == addr) && (vma->vm_flags & VM_GROWSUP);
62662 -}
62663 -
62664 -static inline int stack_guard_page_end(struct vm_area_struct *vma,
62665 - unsigned long addr)
62666 -{
62667 - return (vma->vm_flags & VM_GROWSUP) &&
62668 - (vma->vm_end == addr) &&
62669 - !vma_growsup(vma->vm_next, addr);
62670 -}
62671 -
62672 extern pid_t
62673 vm_is_stack(struct task_struct *task, struct vm_area_struct *vma, int in_group);
62674
62675 @@ -1135,6 +1114,15 @@ static inline void sync_mm_rss(struct mm_struct *mm)
62676 }
62677 #endif
62678
62679 +#ifdef CONFIG_MMU
62680 +pgprot_t vm_get_page_prot(vm_flags_t vm_flags);
62681 +#else
62682 +static inline pgprot_t vm_get_page_prot(vm_flags_t vm_flags)
62683 +{
62684 + return __pgprot(0);
62685 +}
62686 +#endif
62687 +
62688 int vma_wants_writenotify(struct vm_area_struct *vma);
62689
62690 extern pte_t *__get_locked_pte(struct mm_struct *mm, unsigned long addr,
62691 @@ -1153,8 +1141,15 @@ static inline int __pud_alloc(struct mm_struct *mm, pgd_t *pgd,
62692 {
62693 return 0;
62694 }
62695 +
62696 +static inline int __pud_alloc_kernel(struct mm_struct *mm, pgd_t *pgd,
62697 + unsigned long address)
62698 +{
62699 + return 0;
62700 +}
62701 #else
62702 int __pud_alloc(struct mm_struct *mm, pgd_t *pgd, unsigned long address);
62703 +int __pud_alloc_kernel(struct mm_struct *mm, pgd_t *pgd, unsigned long address);
62704 #endif
62705
62706 #ifdef __PAGETABLE_PMD_FOLDED
62707 @@ -1163,8 +1158,15 @@ static inline int __pmd_alloc(struct mm_struct *mm, pud_t *pud,
62708 {
62709 return 0;
62710 }
62711 +
62712 +static inline int __pmd_alloc_kernel(struct mm_struct *mm, pud_t *pud,
62713 + unsigned long address)
62714 +{
62715 + return 0;
62716 +}
62717 #else
62718 int __pmd_alloc(struct mm_struct *mm, pud_t *pud, unsigned long address);
62719 +int __pmd_alloc_kernel(struct mm_struct *mm, pud_t *pud, unsigned long address);
62720 #endif
62721
62722 int __pte_alloc(struct mm_struct *mm, struct vm_area_struct *vma,
62723 @@ -1182,11 +1184,23 @@ static inline pud_t *pud_alloc(struct mm_struct *mm, pgd_t *pgd, unsigned long a
62724 NULL: pud_offset(pgd, address);
62725 }
62726
62727 +static inline pud_t *pud_alloc_kernel(struct mm_struct *mm, pgd_t *pgd, unsigned long address)
62728 +{
62729 + return (unlikely(pgd_none(*pgd)) && __pud_alloc_kernel(mm, pgd, address))?
62730 + NULL: pud_offset(pgd, address);
62731 +}
62732 +
62733 static inline pmd_t *pmd_alloc(struct mm_struct *mm, pud_t *pud, unsigned long address)
62734 {
62735 return (unlikely(pud_none(*pud)) && __pmd_alloc(mm, pud, address))?
62736 NULL: pmd_offset(pud, address);
62737 }
62738 +
62739 +static inline pmd_t *pmd_alloc_kernel(struct mm_struct *mm, pud_t *pud, unsigned long address)
62740 +{
62741 + return (unlikely(pud_none(*pud)) && __pmd_alloc_kernel(mm, pud, address))?
62742 + NULL: pmd_offset(pud, address);
62743 +}
62744 #endif /* CONFIG_MMU && !__ARCH_HAS_4LEVEL_HACK */
62745
62746 #if USE_SPLIT_PTLOCKS
62747 @@ -1396,6 +1410,7 @@ extern unsigned long do_mmap_pgoff(struct file *, unsigned long,
62748 unsigned long, unsigned long,
62749 unsigned long, unsigned long);
62750 extern int do_munmap(struct mm_struct *, unsigned long, size_t);
62751 +extern int __do_munmap(struct mm_struct *, unsigned long, size_t);
62752
62753 /* These take the mm semaphore themselves */
62754 extern unsigned long vm_brk(unsigned long, unsigned long);
62755 @@ -1458,6 +1473,10 @@ extern struct vm_area_struct * find_vma(struct mm_struct * mm, unsigned long add
62756 extern struct vm_area_struct * find_vma_prev(struct mm_struct * mm, unsigned long addr,
62757 struct vm_area_struct **pprev);
62758
62759 +extern struct vm_area_struct *pax_find_mirror_vma(struct vm_area_struct *vma);
62760 +extern __must_check long pax_mirror_vma(struct vm_area_struct *vma_m, struct vm_area_struct *vma);
62761 +extern void pax_mirror_file_pte(struct vm_area_struct *vma, unsigned long address, struct page *page_m, spinlock_t *ptl);
62762 +
62763 /* Look up the first VMA which intersects the interval start_addr..end_addr-1,
62764 NULL if none. Assume start_addr < end_addr. */
62765 static inline struct vm_area_struct * find_vma_intersection(struct mm_struct * mm, unsigned long start_addr, unsigned long end_addr)
62766 @@ -1486,15 +1505,6 @@ static inline struct vm_area_struct *find_exact_vma(struct mm_struct *mm,
62767 return vma;
62768 }
62769
62770 -#ifdef CONFIG_MMU
62771 -pgprot_t vm_get_page_prot(unsigned long vm_flags);
62772 -#else
62773 -static inline pgprot_t vm_get_page_prot(unsigned long vm_flags)
62774 -{
62775 - return __pgprot(0);
62776 -}
62777 -#endif
62778 -
62779 struct vm_area_struct *find_extend_vma(struct mm_struct *, unsigned long addr);
62780 int remap_pfn_range(struct vm_area_struct *, unsigned long addr,
62781 unsigned long pfn, unsigned long size, pgprot_t);
62782 @@ -1599,7 +1609,7 @@ extern int unpoison_memory(unsigned long pfn);
62783 extern int sysctl_memory_failure_early_kill;
62784 extern int sysctl_memory_failure_recovery;
62785 extern void shake_page(struct page *p, int access);
62786 -extern atomic_long_t mce_bad_pages;
62787 +extern atomic_long_unchecked_t mce_bad_pages;
62788 extern int soft_offline_page(struct page *page, int flags);
62789
62790 extern void dump_page(struct page *page);
62791 @@ -1630,5 +1640,11 @@ static inline unsigned int debug_guardpage_minorder(void) { return 0; }
62792 static inline bool page_is_guard(struct page *page) { return false; }
62793 #endif /* CONFIG_DEBUG_PAGEALLOC */
62794
62795 +#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT
62796 +extern void track_exec_limit(struct mm_struct *mm, unsigned long start, unsigned long end, unsigned long prot);
62797 +#else
62798 +static inline void track_exec_limit(struct mm_struct *mm, unsigned long start, unsigned long end, unsigned long prot) {}
62799 +#endif
62800 +
62801 #endif /* __KERNEL__ */
62802 #endif /* _LINUX_MM_H */
62803 diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
62804 index 704a626..bb0705a 100644
62805 --- a/include/linux/mm_types.h
62806 +++ b/include/linux/mm_types.h
62807 @@ -263,6 +263,8 @@ struct vm_area_struct {
62808 #ifdef CONFIG_NUMA
62809 struct mempolicy *vm_policy; /* NUMA policy for the VMA */
62810 #endif
62811 +
62812 + struct vm_area_struct *vm_mirror;/* PaX: mirror vma or NULL */
62813 };
62814
62815 struct core_thread {
62816 @@ -337,7 +339,7 @@ struct mm_struct {
62817 unsigned long def_flags;
62818 unsigned long nr_ptes; /* Page table pages */
62819 unsigned long start_code, end_code, start_data, end_data;
62820 - unsigned long start_brk, brk, start_stack;
62821 + unsigned long brk_gap, start_brk, brk, start_stack;
62822 unsigned long arg_start, arg_end, env_start, env_end;
62823
62824 unsigned long saved_auxv[AT_VECTOR_SIZE]; /* for /proc/PID/auxv */
62825 @@ -389,6 +391,24 @@ struct mm_struct {
62826 struct cpumask cpumask_allocation;
62827 #endif
62828 struct uprobes_state uprobes_state;
62829 +
62830 +#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)
62831 + unsigned long pax_flags;
62832 +#endif
62833 +
62834 +#ifdef CONFIG_PAX_DLRESOLVE
62835 + unsigned long call_dl_resolve;
62836 +#endif
62837 +
62838 +#if defined(CONFIG_PPC32) && defined(CONFIG_PAX_EMUSIGRT)
62839 + unsigned long call_syscall;
62840 +#endif
62841 +
62842 +#ifdef CONFIG_PAX_ASLR
62843 + unsigned long delta_mmap; /* randomized offset */
62844 + unsigned long delta_stack; /* randomized offset */
62845 +#endif
62846 +
62847 };
62848
62849 static inline void mm_init_cpumask(struct mm_struct *mm)
62850 diff --git a/include/linux/mmu_notifier.h b/include/linux/mmu_notifier.h
62851 index 1d1b1e1..2a13c78 100644
62852 --- a/include/linux/mmu_notifier.h
62853 +++ b/include/linux/mmu_notifier.h
62854 @@ -255,12 +255,12 @@ static inline void mmu_notifier_mm_destroy(struct mm_struct *mm)
62855 */
62856 #define ptep_clear_flush_notify(__vma, __address, __ptep) \
62857 ({ \
62858 - pte_t __pte; \
62859 + pte_t ___pte; \
62860 struct vm_area_struct *___vma = __vma; \
62861 unsigned long ___address = __address; \
62862 - __pte = ptep_clear_flush(___vma, ___address, __ptep); \
62863 + ___pte = ptep_clear_flush(___vma, ___address, __ptep); \
62864 mmu_notifier_invalidate_page(___vma->vm_mm, ___address); \
62865 - __pte; \
62866 + ___pte; \
62867 })
62868
62869 #define pmdp_clear_flush_notify(__vma, __address, __pmdp) \
62870 diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
62871 index 68c569f..5f43753 100644
62872 --- a/include/linux/mmzone.h
62873 +++ b/include/linux/mmzone.h
62874 @@ -411,7 +411,7 @@ struct zone {
62875 unsigned long flags; /* zone flags, see below */
62876
62877 /* Zone statistics */
62878 - atomic_long_t vm_stat[NR_VM_ZONE_STAT_ITEMS];
62879 + atomic_long_unchecked_t vm_stat[NR_VM_ZONE_STAT_ITEMS];
62880
62881 /*
62882 * The target ratio of ACTIVE_ANON to INACTIVE_ANON pages on
62883 diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h
62884 index 5db9382..50e801d 100644
62885 --- a/include/linux/mod_devicetable.h
62886 +++ b/include/linux/mod_devicetable.h
62887 @@ -12,7 +12,7 @@
62888 typedef unsigned long kernel_ulong_t;
62889 #endif
62890
62891 -#define PCI_ANY_ID (~0)
62892 +#define PCI_ANY_ID ((__u16)~0)
62893
62894 struct pci_device_id {
62895 __u32 vendor, device; /* Vendor and device ID or PCI_ANY_ID*/
62896 @@ -131,7 +131,7 @@ struct usb_device_id {
62897 #define USB_DEVICE_ID_MATCH_INT_SUBCLASS 0x0100
62898 #define USB_DEVICE_ID_MATCH_INT_PROTOCOL 0x0200
62899
62900 -#define HID_ANY_ID (~0)
62901 +#define HID_ANY_ID (~0U)
62902 #define HID_BUS_ANY 0xffff
62903 #define HID_GROUP_ANY 0x0000
62904
62905 diff --git a/include/linux/module.h b/include/linux/module.h
62906 index fbcafe2..e5d9587 100644
62907 --- a/include/linux/module.h
62908 +++ b/include/linux/module.h
62909 @@ -17,6 +17,7 @@
62910 #include <linux/moduleparam.h>
62911 #include <linux/tracepoint.h>
62912 #include <linux/export.h>
62913 +#include <linux/fs.h>
62914
62915 #include <linux/percpu.h>
62916 #include <asm/module.h>
62917 @@ -273,19 +274,16 @@ struct module
62918 int (*init)(void);
62919
62920 /* If this is non-NULL, vfree after init() returns */
62921 - void *module_init;
62922 + void *module_init_rx, *module_init_rw;
62923
62924 /* Here is the actual code + data, vfree'd on unload. */
62925 - void *module_core;
62926 + void *module_core_rx, *module_core_rw;
62927
62928 /* Here are the sizes of the init and core sections */
62929 - unsigned int init_size, core_size;
62930 + unsigned int init_size_rw, core_size_rw;
62931
62932 /* The size of the executable code in each section. */
62933 - unsigned int init_text_size, core_text_size;
62934 -
62935 - /* Size of RO sections of the module (text+rodata) */
62936 - unsigned int init_ro_size, core_ro_size;
62937 + unsigned int init_size_rx, core_size_rx;
62938
62939 /* Arch-specific module values */
62940 struct mod_arch_specific arch;
62941 @@ -341,6 +339,10 @@ struct module
62942 #ifdef CONFIG_EVENT_TRACING
62943 struct ftrace_event_call **trace_events;
62944 unsigned int num_trace_events;
62945 + struct file_operations trace_id;
62946 + struct file_operations trace_enable;
62947 + struct file_operations trace_format;
62948 + struct file_operations trace_filter;
62949 #endif
62950 #ifdef CONFIG_FTRACE_MCOUNT_RECORD
62951 unsigned int num_ftrace_callsites;
62952 @@ -388,16 +390,46 @@ bool is_module_address(unsigned long addr);
62953 bool is_module_percpu_address(unsigned long addr);
62954 bool is_module_text_address(unsigned long addr);
62955
62956 +static inline int within_module_range(unsigned long addr, void *start, unsigned long size)
62957 +{
62958 +
62959 +#ifdef CONFIG_PAX_KERNEXEC
62960 + if (ktla_ktva(addr) >= (unsigned long)start &&
62961 + ktla_ktva(addr) < (unsigned long)start + size)
62962 + return 1;
62963 +#endif
62964 +
62965 + return ((void *)addr >= start && (void *)addr < start + size);
62966 +}
62967 +
62968 +static inline int within_module_core_rx(unsigned long addr, struct module *mod)
62969 +{
62970 + return within_module_range(addr, mod->module_core_rx, mod->core_size_rx);
62971 +}
62972 +
62973 +static inline int within_module_core_rw(unsigned long addr, struct module *mod)
62974 +{
62975 + return within_module_range(addr, mod->module_core_rw, mod->core_size_rw);
62976 +}
62977 +
62978 +static inline int within_module_init_rx(unsigned long addr, struct module *mod)
62979 +{
62980 + return within_module_range(addr, mod->module_init_rx, mod->init_size_rx);
62981 +}
62982 +
62983 +static inline int within_module_init_rw(unsigned long addr, struct module *mod)
62984 +{
62985 + return within_module_range(addr, mod->module_init_rw, mod->init_size_rw);
62986 +}
62987 +
62988 static inline int within_module_core(unsigned long addr, struct module *mod)
62989 {
62990 - return (unsigned long)mod->module_core <= addr &&
62991 - addr < (unsigned long)mod->module_core + mod->core_size;
62992 + return within_module_core_rx(addr, mod) || within_module_core_rw(addr, mod);
62993 }
62994
62995 static inline int within_module_init(unsigned long addr, struct module *mod)
62996 {
62997 - return (unsigned long)mod->module_init <= addr &&
62998 - addr < (unsigned long)mod->module_init + mod->init_size;
62999 + return within_module_init_rx(addr, mod) || within_module_init_rw(addr, mod);
63000 }
63001
63002 /* Search for module by name: must hold module_mutex. */
63003 diff --git a/include/linux/moduleloader.h b/include/linux/moduleloader.h
63004 index b2be02e..72d2f78 100644
63005 --- a/include/linux/moduleloader.h
63006 +++ b/include/linux/moduleloader.h
63007 @@ -23,11 +23,23 @@ unsigned int arch_mod_section_prepend(struct module *mod, unsigned int section);
63008
63009 /* Allocator used for allocating struct module, core sections and init
63010 sections. Returns NULL on failure. */
63011 -void *module_alloc(unsigned long size);
63012 +void *module_alloc(unsigned long size) __size_overflow(1);
63013 +
63014 +#ifdef CONFIG_PAX_KERNEXEC
63015 +void *module_alloc_exec(unsigned long size) __size_overflow(1);
63016 +#else
63017 +#define module_alloc_exec(x) module_alloc(x)
63018 +#endif
63019
63020 /* Free memory returned from module_alloc. */
63021 void module_free(struct module *mod, void *module_region);
63022
63023 +#ifdef CONFIG_PAX_KERNEXEC
63024 +void module_free_exec(struct module *mod, void *module_region);
63025 +#else
63026 +#define module_free_exec(x, y) module_free((x), (y))
63027 +#endif
63028 +
63029 /* Apply the given relocation to the (simplified) ELF. Return -error
63030 or 0. */
63031 int apply_relocate(Elf_Shdr *sechdrs,
63032 diff --git a/include/linux/moduleparam.h b/include/linux/moduleparam.h
63033 index d6a5806..7c13347 100644
63034 --- a/include/linux/moduleparam.h
63035 +++ b/include/linux/moduleparam.h
63036 @@ -286,7 +286,7 @@ static inline void __kernel_param_unlock(void)
63037 * @len is usually just sizeof(string).
63038 */
63039 #define module_param_string(name, string, len, perm) \
63040 - static const struct kparam_string __param_string_##name \
63041 + static const struct kparam_string __param_string_##name __used \
63042 = { len, string }; \
63043 __module_param_call(MODULE_PARAM_PREFIX, name, \
63044 &param_ops_string, \
63045 @@ -425,7 +425,7 @@ extern int param_set_bint(const char *val, const struct kernel_param *kp);
63046 */
63047 #define module_param_array_named(name, array, type, nump, perm) \
63048 param_check_##type(name, &(array)[0]); \
63049 - static const struct kparam_array __param_arr_##name \
63050 + static const struct kparam_array __param_arr_##name __used \
63051 = { .max = ARRAY_SIZE(array), .num = nump, \
63052 .ops = &param_ops_##type, \
63053 .elemsize = sizeof(array[0]), .elem = array }; \
63054 diff --git a/include/linux/namei.h b/include/linux/namei.h
63055 index ffc0213..2c1f2cb 100644
63056 --- a/include/linux/namei.h
63057 +++ b/include/linux/namei.h
63058 @@ -24,7 +24,7 @@ struct nameidata {
63059 unsigned seq;
63060 int last_type;
63061 unsigned depth;
63062 - char *saved_names[MAX_NESTED_LINKS + 1];
63063 + const char *saved_names[MAX_NESTED_LINKS + 1];
63064
63065 /* Intent data */
63066 union {
63067 @@ -94,12 +94,12 @@ extern int follow_up(struct path *);
63068 extern struct dentry *lock_rename(struct dentry *, struct dentry *);
63069 extern void unlock_rename(struct dentry *, struct dentry *);
63070
63071 -static inline void nd_set_link(struct nameidata *nd, char *path)
63072 +static inline void nd_set_link(struct nameidata *nd, const char *path)
63073 {
63074 nd->saved_names[nd->depth] = path;
63075 }
63076
63077 -static inline char *nd_get_link(struct nameidata *nd)
63078 +static inline const char *nd_get_link(const struct nameidata *nd)
63079 {
63080 return nd->saved_names[nd->depth];
63081 }
63082 diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
63083 index d94cb14..e64c951 100644
63084 --- a/include/linux/netdevice.h
63085 +++ b/include/linux/netdevice.h
63086 @@ -1026,6 +1026,7 @@ struct net_device_ops {
63087 struct net_device *dev,
63088 int idx);
63089 };
63090 +typedef struct net_device_ops __no_const net_device_ops_no_const;
63091
63092 /*
63093 * The DEVICE structure.
63094 @@ -1087,7 +1088,7 @@ struct net_device {
63095 int iflink;
63096
63097 struct net_device_stats stats;
63098 - atomic_long_t rx_dropped; /* dropped packets by core network
63099 + atomic_long_unchecked_t rx_dropped; /* dropped packets by core network
63100 * Do not use this in drivers.
63101 */
63102
63103 diff --git a/include/linux/netfilter/xt_gradm.h b/include/linux/netfilter/xt_gradm.h
63104 new file mode 100644
63105 index 0000000..33f4af8
63106 --- /dev/null
63107 +++ b/include/linux/netfilter/xt_gradm.h
63108 @@ -0,0 +1,9 @@
63109 +#ifndef _LINUX_NETFILTER_XT_GRADM_H
63110 +#define _LINUX_NETFILTER_XT_GRADM_H 1
63111 +
63112 +struct xt_gradm_mtinfo {
63113 + __u16 flags;
63114 + __u16 invflags;
63115 +};
63116 +
63117 +#endif
63118 diff --git a/include/linux/of_pdt.h b/include/linux/of_pdt.h
63119 index c65a18a..0c05f3a 100644
63120 --- a/include/linux/of_pdt.h
63121 +++ b/include/linux/of_pdt.h
63122 @@ -32,7 +32,7 @@ struct of_pdt_ops {
63123
63124 /* return 0 on success; fill in 'len' with number of bytes in path */
63125 int (*pkg2path)(phandle node, char *buf, const int buflen, int *len);
63126 -};
63127 +} __no_const;
63128
63129 extern void *prom_early_alloc(unsigned long size);
63130
63131 diff --git a/include/linux/oprofile.h b/include/linux/oprofile.h
63132 index a4c5624..79d6d88 100644
63133 --- a/include/linux/oprofile.h
63134 +++ b/include/linux/oprofile.h
63135 @@ -139,9 +139,9 @@ int oprofilefs_create_ulong(struct super_block * sb, struct dentry * root,
63136 int oprofilefs_create_ro_ulong(struct super_block * sb, struct dentry * root,
63137 char const * name, ulong * val);
63138
63139 -/** Create a file for read-only access to an atomic_t. */
63140 +/** Create a file for read-only access to an atomic_unchecked_t. */
63141 int oprofilefs_create_ro_atomic(struct super_block * sb, struct dentry * root,
63142 - char const * name, atomic_t * val);
63143 + char const * name, atomic_unchecked_t * val);
63144
63145 /** create a directory */
63146 struct dentry * oprofilefs_mkdir(struct super_block * sb, struct dentry * root,
63147 diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
63148 index 45db49f..386788e 100644
63149 --- a/include/linux/perf_event.h
63150 +++ b/include/linux/perf_event.h
63151 @@ -879,8 +879,8 @@ struct perf_event {
63152
63153 enum perf_event_active_state state;
63154 unsigned int attach_state;
63155 - local64_t count;
63156 - atomic64_t child_count;
63157 + local64_t count; /* PaX: fix it one day */
63158 + atomic64_unchecked_t child_count;
63159
63160 /*
63161 * These are the total time in nanoseconds that the event
63162 @@ -931,8 +931,8 @@ struct perf_event {
63163 * These accumulate total time (in nanoseconds) that children
63164 * events have been enabled and running, respectively.
63165 */
63166 - atomic64_t child_total_time_enabled;
63167 - atomic64_t child_total_time_running;
63168 + atomic64_unchecked_t child_total_time_enabled;
63169 + atomic64_unchecked_t child_total_time_running;
63170
63171 /*
63172 * Protect attach/detach and child_list:
63173 diff --git a/include/linux/personality.h b/include/linux/personality.h
63174 index 8fc7dd1a..c19d89e 100644
63175 --- a/include/linux/personality.h
63176 +++ b/include/linux/personality.h
63177 @@ -44,6 +44,7 @@ enum {
63178 #define PER_CLEAR_ON_SETID (READ_IMPLIES_EXEC | \
63179 ADDR_NO_RANDOMIZE | \
63180 ADDR_COMPAT_LAYOUT | \
63181 + ADDR_LIMIT_3GB | \
63182 MMAP_PAGE_ZERO)
63183
63184 /*
63185 diff --git a/include/linux/pipe_fs_i.h b/include/linux/pipe_fs_i.h
63186 index e1ac1ce..0675fed 100644
63187 --- a/include/linux/pipe_fs_i.h
63188 +++ b/include/linux/pipe_fs_i.h
63189 @@ -45,9 +45,9 @@ struct pipe_buffer {
63190 struct pipe_inode_info {
63191 wait_queue_head_t wait;
63192 unsigned int nrbufs, curbuf, buffers;
63193 - unsigned int readers;
63194 - unsigned int writers;
63195 - unsigned int waiting_writers;
63196 + atomic_t readers;
63197 + atomic_t writers;
63198 + atomic_t waiting_writers;
63199 unsigned int r_counter;
63200 unsigned int w_counter;
63201 struct page *tmp_page;
63202 diff --git a/include/linux/pm_runtime.h b/include/linux/pm_runtime.h
63203 index f271860..6b3bec5 100644
63204 --- a/include/linux/pm_runtime.h
63205 +++ b/include/linux/pm_runtime.h
63206 @@ -97,7 +97,7 @@ static inline bool pm_runtime_callbacks_present(struct device *dev)
63207
63208 static inline void pm_runtime_mark_last_busy(struct device *dev)
63209 {
63210 - ACCESS_ONCE(dev->power.last_busy) = jiffies;
63211 + ACCESS_ONCE_RW(dev->power.last_busy) = jiffies;
63212 }
63213
63214 #else /* !CONFIG_PM_RUNTIME */
63215 diff --git a/include/linux/poison.h b/include/linux/poison.h
63216 index 2110a81..13a11bb 100644
63217 --- a/include/linux/poison.h
63218 +++ b/include/linux/poison.h
63219 @@ -19,8 +19,8 @@
63220 * under normal circumstances, used to verify that nobody uses
63221 * non-initialized list entries.
63222 */
63223 -#define LIST_POISON1 ((void *) 0x00100100 + POISON_POINTER_DELTA)
63224 -#define LIST_POISON2 ((void *) 0x00200200 + POISON_POINTER_DELTA)
63225 +#define LIST_POISON1 ((void *) (long)0xFFFFFF01)
63226 +#define LIST_POISON2 ((void *) (long)0xFFFFFF02)
63227
63228 /********** include/linux/timer.h **********/
63229 /*
63230 diff --git a/include/linux/preempt.h b/include/linux/preempt.h
63231 index 5a710b9..0b0dab9 100644
63232 --- a/include/linux/preempt.h
63233 +++ b/include/linux/preempt.h
63234 @@ -126,7 +126,7 @@ struct preempt_ops {
63235 void (*sched_in)(struct preempt_notifier *notifier, int cpu);
63236 void (*sched_out)(struct preempt_notifier *notifier,
63237 struct task_struct *next);
63238 -};
63239 +} __no_const;
63240
63241 /**
63242 * preempt_notifier - key for installing preemption notifiers
63243 diff --git a/include/linux/printk.h b/include/linux/printk.h
63244 index 1bec2f7..b66e833 100644
63245 --- a/include/linux/printk.h
63246 +++ b/include/linux/printk.h
63247 @@ -94,6 +94,8 @@ void early_printk(const char *fmt, ...);
63248 extern int printk_needs_cpu(int cpu);
63249 extern void printk_tick(void);
63250
63251 +extern int kptr_restrict;
63252 +
63253 #ifdef CONFIG_PRINTK
63254 asmlinkage __printf(5, 0)
63255 int vprintk_emit(int facility, int level,
63256 @@ -128,7 +130,6 @@ extern bool printk_timed_ratelimit(unsigned long *caller_jiffies,
63257
63258 extern int printk_delay_msec;
63259 extern int dmesg_restrict;
63260 -extern int kptr_restrict;
63261
63262 void log_buf_kexec_setup(void);
63263 void __init setup_log_buf(int early);
63264 diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h
63265 index 3fd2e87..d93a721 100644
63266 --- a/include/linux/proc_fs.h
63267 +++ b/include/linux/proc_fs.h
63268 @@ -155,6 +155,18 @@ static inline struct proc_dir_entry *proc_create(const char *name, umode_t mode,
63269 return proc_create_data(name, mode, parent, proc_fops, NULL);
63270 }
63271
63272 +static inline struct proc_dir_entry *proc_create_grsec(const char *name, umode_t mode,
63273 + struct proc_dir_entry *parent, const struct file_operations *proc_fops)
63274 +{
63275 +#ifdef CONFIG_GRKERNSEC_PROC_USER
63276 + return proc_create_data(name, S_IRUSR, parent, proc_fops, NULL);
63277 +#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
63278 + return proc_create_data(name, S_IRUSR | S_IRGRP, parent, proc_fops, NULL);
63279 +#else
63280 + return proc_create_data(name, mode, parent, proc_fops, NULL);
63281 +#endif
63282 +}
63283 +
63284 static inline struct proc_dir_entry *create_proc_read_entry(const char *name,
63285 umode_t mode, struct proc_dir_entry *base,
63286 read_proc_t *read_proc, void * data)
63287 @@ -258,7 +270,7 @@ union proc_op {
63288 int (*proc_show)(struct seq_file *m,
63289 struct pid_namespace *ns, struct pid *pid,
63290 struct task_struct *task);
63291 -};
63292 +} __no_const;
63293
63294 struct ctl_table_header;
63295 struct ctl_table;
63296 diff --git a/include/linux/random.h b/include/linux/random.h
63297 index ac621ce..c1215f3 100644
63298 --- a/include/linux/random.h
63299 +++ b/include/linux/random.h
63300 @@ -53,6 +53,10 @@ extern void add_input_randomness(unsigned int type, unsigned int code,
63301 unsigned int value);
63302 extern void add_interrupt_randomness(int irq, int irq_flags);
63303
63304 +#ifdef CONFIG_PAX_LATENT_ENTROPY
63305 +extern void transfer_latent_entropy(void);
63306 +#endif
63307 +
63308 extern void get_random_bytes(void *buf, int nbytes);
63309 extern void get_random_bytes_arch(void *buf, int nbytes);
63310 void generate_random_uuid(unsigned char uuid_out[16]);
63311 @@ -69,12 +73,17 @@ void srandom32(u32 seed);
63312
63313 u32 prandom32(struct rnd_state *);
63314
63315 +static inline unsigned long pax_get_random_long(void)
63316 +{
63317 + return random32() + (sizeof(long) > 4 ? (unsigned long)random32() << 32 : 0);
63318 +}
63319 +
63320 /*
63321 * Handle minimum values for seeds
63322 */
63323 static inline u32 __seed(u32 x, u32 m)
63324 {
63325 - return (x < m) ? x + m : x;
63326 + return (x <= m) ? x + m + 1 : x;
63327 }
63328
63329 /**
63330 diff --git a/include/linux/reboot.h b/include/linux/reboot.h
63331 index e0879a7..a12f962 100644
63332 --- a/include/linux/reboot.h
63333 +++ b/include/linux/reboot.h
63334 @@ -52,9 +52,9 @@ extern int unregister_reboot_notifier(struct notifier_block *);
63335 * Architecture-specific implementations of sys_reboot commands.
63336 */
63337
63338 -extern void machine_restart(char *cmd);
63339 -extern void machine_halt(void);
63340 -extern void machine_power_off(void);
63341 +extern void machine_restart(char *cmd) __noreturn;
63342 +extern void machine_halt(void) __noreturn;
63343 +extern void machine_power_off(void) __noreturn;
63344
63345 extern void machine_shutdown(void);
63346 struct pt_regs;
63347 @@ -65,9 +65,9 @@ extern void machine_crash_shutdown(struct pt_regs *);
63348 */
63349
63350 extern void kernel_restart_prepare(char *cmd);
63351 -extern void kernel_restart(char *cmd);
63352 -extern void kernel_halt(void);
63353 -extern void kernel_power_off(void);
63354 +extern void kernel_restart(char *cmd) __noreturn;
63355 +extern void kernel_halt(void) __noreturn;
63356 +extern void kernel_power_off(void) __noreturn;
63357
63358 extern int C_A_D; /* for sysctl */
63359 void ctrl_alt_del(void);
63360 @@ -81,7 +81,7 @@ extern int orderly_poweroff(bool force);
63361 * Emergency restart, callable from an interrupt handler.
63362 */
63363
63364 -extern void emergency_restart(void);
63365 +extern void emergency_restart(void) __noreturn;
63366 #include <asm/emergency-restart.h>
63367
63368 #endif
63369 diff --git a/include/linux/relay.h b/include/linux/relay.h
63370 index 91cacc3..b55ff74 100644
63371 --- a/include/linux/relay.h
63372 +++ b/include/linux/relay.h
63373 @@ -160,7 +160,7 @@ struct rchan_callbacks
63374 * The callback should return 0 if successful, negative if not.
63375 */
63376 int (*remove_buf_file)(struct dentry *dentry);
63377 -};
63378 +} __no_const;
63379
63380 /*
63381 * CONFIG_RELAY kernel API, kernel/relay.c
63382 diff --git a/include/linux/rfkill.h b/include/linux/rfkill.h
63383 index 6fdf027..ff72610 100644
63384 --- a/include/linux/rfkill.h
63385 +++ b/include/linux/rfkill.h
63386 @@ -147,6 +147,7 @@ struct rfkill_ops {
63387 void (*query)(struct rfkill *rfkill, void *data);
63388 int (*set_block)(void *data, bool blocked);
63389 };
63390 +typedef struct rfkill_ops __no_const rfkill_ops_no_const;
63391
63392 #if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE)
63393 /**
63394 diff --git a/include/linux/rio.h b/include/linux/rio.h
63395 index a90ebad..fd87b5d 100644
63396 --- a/include/linux/rio.h
63397 +++ b/include/linux/rio.h
63398 @@ -321,7 +321,7 @@ struct rio_ops {
63399 int mbox, void *buffer, size_t len);
63400 int (*add_inb_buffer)(struct rio_mport *mport, int mbox, void *buf);
63401 void *(*get_inb_message)(struct rio_mport *mport, int mbox);
63402 -};
63403 +} __no_const;
63404
63405 #define RIO_RESOURCE_MEM 0x00000100
63406 #define RIO_RESOURCE_DOORBELL 0x00000200
63407 diff --git a/include/linux/rmap.h b/include/linux/rmap.h
63408 index 3fce545..b4fed6e 100644
63409 --- a/include/linux/rmap.h
63410 +++ b/include/linux/rmap.h
63411 @@ -119,9 +119,9 @@ static inline void anon_vma_unlock(struct anon_vma *anon_vma)
63412 void anon_vma_init(void); /* create anon_vma_cachep */
63413 int anon_vma_prepare(struct vm_area_struct *);
63414 void unlink_anon_vmas(struct vm_area_struct *);
63415 -int anon_vma_clone(struct vm_area_struct *, struct vm_area_struct *);
63416 +int anon_vma_clone(struct vm_area_struct *, const struct vm_area_struct *);
63417 void anon_vma_moveto_tail(struct vm_area_struct *);
63418 -int anon_vma_fork(struct vm_area_struct *, struct vm_area_struct *);
63419 +int anon_vma_fork(struct vm_area_struct *, const struct vm_area_struct *);
63420
63421 static inline void anon_vma_merge(struct vm_area_struct *vma,
63422 struct vm_area_struct *next)
63423 diff --git a/include/linux/sched.h b/include/linux/sched.h
63424 index 4a1f493..5812aeb 100644
63425 --- a/include/linux/sched.h
63426 +++ b/include/linux/sched.h
63427 @@ -101,6 +101,7 @@ struct bio_list;
63428 struct fs_struct;
63429 struct perf_event_context;
63430 struct blk_plug;
63431 +struct linux_binprm;
63432
63433 /*
63434 * List of flags we want to share for kernel threads,
63435 @@ -384,10 +385,13 @@ struct user_namespace;
63436 #define DEFAULT_MAX_MAP_COUNT (USHRT_MAX - MAPCOUNT_ELF_CORE_MARGIN)
63437
63438 extern int sysctl_max_map_count;
63439 +extern unsigned long sysctl_heap_stack_gap;
63440
63441 #include <linux/aio.h>
63442
63443 #ifdef CONFIG_MMU
63444 +extern bool check_heap_stack_gap(const struct vm_area_struct *vma, unsigned long addr, unsigned long len);
63445 +extern unsigned long skip_heap_stack_gap(const struct vm_area_struct *vma, unsigned long len);
63446 extern void arch_pick_mmap_layout(struct mm_struct *mm);
63447 extern unsigned long
63448 arch_get_unmapped_area(struct file *, unsigned long, unsigned long,
63449 @@ -406,6 +410,11 @@ static inline void arch_pick_mmap_layout(struct mm_struct *mm) {}
63450 extern void set_dumpable(struct mm_struct *mm, int value);
63451 extern int get_dumpable(struct mm_struct *mm);
63452
63453 +/* get/set_dumpable() values */
63454 +#define SUID_DUMPABLE_DISABLED 0
63455 +#define SUID_DUMPABLE_ENABLED 1
63456 +#define SUID_DUMPABLE_SAFE 2
63457 +
63458 /* mm flags */
63459 /* dumpable bits */
63460 #define MMF_DUMPABLE 0 /* core dump is permitted */
63461 @@ -646,6 +655,17 @@ struct signal_struct {
63462 #ifdef CONFIG_TASKSTATS
63463 struct taskstats *stats;
63464 #endif
63465 +
63466 +#ifdef CONFIG_GRKERNSEC
63467 + u32 curr_ip;
63468 + u32 saved_ip;
63469 + u32 gr_saddr;
63470 + u32 gr_daddr;
63471 + u16 gr_sport;
63472 + u16 gr_dport;
63473 + u8 used_accept:1;
63474 +#endif
63475 +
63476 #ifdef CONFIG_AUDIT
63477 unsigned audit_tty;
63478 struct tty_audit_buf *tty_audit_buf;
63479 @@ -729,6 +749,11 @@ struct user_struct {
63480 struct key *session_keyring; /* UID's default session keyring */
63481 #endif
63482
63483 +#if defined(CONFIG_GRKERNSEC_KERN_LOCKOUT) || defined(CONFIG_GRKERNSEC_BRUTE)
63484 + unsigned int banned;
63485 + unsigned long ban_expires;
63486 +#endif
63487 +
63488 /* Hash table maintenance information */
63489 struct hlist_node uidhash_node;
63490 kuid_t uid;
63491 @@ -1348,8 +1373,8 @@ struct task_struct {
63492 struct list_head thread_group;
63493
63494 struct completion *vfork_done; /* for vfork() */
63495 - int __user *set_child_tid; /* CLONE_CHILD_SETTID */
63496 - int __user *clear_child_tid; /* CLONE_CHILD_CLEARTID */
63497 + pid_t __user *set_child_tid; /* CLONE_CHILD_SETTID */
63498 + pid_t __user *clear_child_tid; /* CLONE_CHILD_CLEARTID */
63499
63500 cputime_t utime, stime, utimescaled, stimescaled;
63501 cputime_t gtime;
63502 @@ -1365,11 +1390,6 @@ struct task_struct {
63503 struct task_cputime cputime_expires;
63504 struct list_head cpu_timers[3];
63505
63506 -/* process credentials */
63507 - const struct cred __rcu *real_cred; /* objective and real subjective task
63508 - * credentials (COW) */
63509 - const struct cred __rcu *cred; /* effective (overridable) subjective task
63510 - * credentials (COW) */
63511 char comm[TASK_COMM_LEN]; /* executable name excluding path
63512 - access with [gs]et_task_comm (which lock
63513 it with task_lock())
63514 @@ -1386,8 +1406,16 @@ struct task_struct {
63515 #endif
63516 /* CPU-specific state of this task */
63517 struct thread_struct thread;
63518 +/* thread_info moved to task_struct */
63519 +#ifdef CONFIG_X86
63520 + struct thread_info tinfo;
63521 +#endif
63522 /* filesystem information */
63523 struct fs_struct *fs;
63524 +
63525 + const struct cred __rcu *cred; /* effective (overridable) subjective task
63526 + * credentials (COW) */
63527 +
63528 /* open file information */
63529 struct files_struct *files;
63530 /* namespaces */
63531 @@ -1431,6 +1459,11 @@ struct task_struct {
63532 struct rt_mutex_waiter *pi_blocked_on;
63533 #endif
63534
63535 +/* process credentials */
63536 + const struct cred __rcu *real_cred; /* objective and real subjective task
63537 + * credentials (COW) */
63538 + struct cred *replacement_session_keyring; /* for KEYCTL_SESSION_TO_PARENT */
63539 +
63540 #ifdef CONFIG_DEBUG_MUTEXES
63541 /* mutex deadlock detection */
63542 struct mutex_waiter *blocked_on;
63543 @@ -1547,6 +1580,27 @@ struct task_struct {
63544 unsigned long default_timer_slack_ns;
63545
63546 struct list_head *scm_work_list;
63547 +
63548 +#ifdef CONFIG_GRKERNSEC
63549 + /* grsecurity */
63550 +#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
63551 + u64 exec_id;
63552 +#endif
63553 +#ifdef CONFIG_GRKERNSEC_SETXID
63554 + const struct cred *delayed_cred;
63555 +#endif
63556 + struct dentry *gr_chroot_dentry;
63557 + struct acl_subject_label *acl;
63558 + struct acl_role_label *role;
63559 + struct file *exec_file;
63560 + u16 acl_role_id;
63561 + /* is this the task that authenticated to the special role */
63562 + u8 acl_sp_role;
63563 + u8 is_writable;
63564 + u8 brute;
63565 + u8 gr_is_chrooted;
63566 +#endif
63567 +
63568 #ifdef CONFIG_FUNCTION_GRAPH_TRACER
63569 /* Index of current stored address in ret_stack */
63570 int curr_ret_stack;
63571 @@ -1585,6 +1639,51 @@ struct task_struct {
63572 #endif
63573 };
63574
63575 +#define MF_PAX_PAGEEXEC 0x01000000 /* Paging based non-executable pages */
63576 +#define MF_PAX_EMUTRAMP 0x02000000 /* Emulate trampolines */
63577 +#define MF_PAX_MPROTECT 0x04000000 /* Restrict mprotect() */
63578 +#define MF_PAX_RANDMMAP 0x08000000 /* Randomize mmap() base */
63579 +/*#define MF_PAX_RANDEXEC 0x10000000*/ /* Randomize ET_EXEC base */
63580 +#define MF_PAX_SEGMEXEC 0x20000000 /* Segmentation based non-executable pages */
63581 +
63582 +#ifdef CONFIG_PAX_SOFTMODE
63583 +extern int pax_softmode;
63584 +#endif
63585 +
63586 +extern int pax_check_flags(unsigned long *);
63587 +
63588 +/* if tsk != current then task_lock must be held on it */
63589 +#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)
63590 +static inline unsigned long pax_get_flags(struct task_struct *tsk)
63591 +{
63592 + if (likely(tsk->mm))
63593 + return tsk->mm->pax_flags;
63594 + else
63595 + return 0UL;
63596 +}
63597 +
63598 +/* if tsk != current then task_lock must be held on it */
63599 +static inline long pax_set_flags(struct task_struct *tsk, unsigned long flags)
63600 +{
63601 + if (likely(tsk->mm)) {
63602 + tsk->mm->pax_flags = flags;
63603 + return 0;
63604 + }
63605 + return -EINVAL;
63606 +}
63607 +#endif
63608 +
63609 +#ifdef CONFIG_PAX_HAVE_ACL_FLAGS
63610 +extern void pax_set_initial_flags(struct linux_binprm *bprm);
63611 +#elif defined(CONFIG_PAX_HOOK_ACL_FLAGS)
63612 +extern void (*pax_set_initial_flags_func)(struct linux_binprm *bprm);
63613 +#endif
63614 +
63615 +extern void pax_report_fault(struct pt_regs *regs, void *pc, void *sp);
63616 +extern void pax_report_insns(struct pt_regs *regs, void *pc, void *sp);
63617 +extern void pax_report_refcount_overflow(struct pt_regs *regs);
63618 +extern void check_object_size(const void *ptr, unsigned long n, bool to);
63619 +
63620 /* Future-safe accessor for struct task_struct's cpus_allowed. */
63621 #define tsk_cpus_allowed(tsk) (&(tsk)->cpus_allowed)
63622
63623 @@ -2112,7 +2211,9 @@ void yield(void);
63624 extern struct exec_domain default_exec_domain;
63625
63626 union thread_union {
63627 +#ifndef CONFIG_X86
63628 struct thread_info thread_info;
63629 +#endif
63630 unsigned long stack[THREAD_SIZE/sizeof(long)];
63631 };
63632
63633 @@ -2145,6 +2246,7 @@ extern struct pid_namespace init_pid_ns;
63634 */
63635
63636 extern struct task_struct *find_task_by_vpid(pid_t nr);
63637 +extern struct task_struct *find_task_by_vpid_unrestricted(pid_t nr);
63638 extern struct task_struct *find_task_by_pid_ns(pid_t nr,
63639 struct pid_namespace *ns);
63640
63641 @@ -2301,7 +2403,7 @@ extern void __cleanup_sighand(struct sighand_struct *);
63642 extern void exit_itimers(struct signal_struct *);
63643 extern void flush_itimer_signals(void);
63644
63645 -extern void do_group_exit(int);
63646 +extern __noreturn void do_group_exit(int);
63647
63648 extern void daemonize(const char *, ...);
63649 extern int allow_signal(int);
63650 @@ -2502,9 +2604,9 @@ static inline unsigned long *end_of_stack(struct task_struct *p)
63651
63652 #endif
63653
63654 -static inline int object_is_on_stack(void *obj)
63655 +static inline int object_starts_on_stack(void *obj)
63656 {
63657 - void *stack = task_stack_page(current);
63658 + const void *stack = task_stack_page(current);
63659
63660 return (obj >= stack) && (obj < (stack + THREAD_SIZE));
63661 }
63662 diff --git a/include/linux/screen_info.h b/include/linux/screen_info.h
63663 index 899fbb4..1cb4138 100644
63664 --- a/include/linux/screen_info.h
63665 +++ b/include/linux/screen_info.h
63666 @@ -43,7 +43,8 @@ struct screen_info {
63667 __u16 pages; /* 0x32 */
63668 __u16 vesa_attributes; /* 0x34 */
63669 __u32 capabilities; /* 0x36 */
63670 - __u8 _reserved[6]; /* 0x3a */
63671 + __u16 vesapm_size; /* 0x3a */
63672 + __u8 _reserved[4]; /* 0x3c */
63673 } __attribute__((packed));
63674
63675 #define VIDEO_TYPE_MDA 0x10 /* Monochrome Text Display */
63676 diff --git a/include/linux/security.h b/include/linux/security.h
63677 index 3dea6a9..81fd81f 100644
63678 --- a/include/linux/security.h
63679 +++ b/include/linux/security.h
63680 @@ -26,6 +26,7 @@
63681 #include <linux/capability.h>
63682 #include <linux/slab.h>
63683 #include <linux/err.h>
63684 +#include <linux/grsecurity.h>
63685
63686 struct linux_binprm;
63687 struct cred;
63688 diff --git a/include/linux/seq_file.h b/include/linux/seq_file.h
63689 index fc61854..d7c490b 100644
63690 --- a/include/linux/seq_file.h
63691 +++ b/include/linux/seq_file.h
63692 @@ -25,6 +25,9 @@ struct seq_file {
63693 struct mutex lock;
63694 const struct seq_operations *op;
63695 int poll_event;
63696 +#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
63697 + u64 exec_id;
63698 +#endif
63699 void *private;
63700 };
63701
63702 @@ -34,6 +37,7 @@ struct seq_operations {
63703 void * (*next) (struct seq_file *m, void *v, loff_t *pos);
63704 int (*show) (struct seq_file *m, void *v);
63705 };
63706 +typedef struct seq_operations __no_const seq_operations_no_const;
63707
63708 #define SEQ_SKIP 1
63709
63710 diff --git a/include/linux/shm.h b/include/linux/shm.h
63711 index 92808b8..c28cac4 100644
63712 --- a/include/linux/shm.h
63713 +++ b/include/linux/shm.h
63714 @@ -98,6 +98,10 @@ struct shmid_kernel /* private to the kernel */
63715
63716 /* The task created the shm object. NULL if the task is dead. */
63717 struct task_struct *shm_creator;
63718 +#ifdef CONFIG_GRKERNSEC
63719 + time_t shm_createtime;
63720 + pid_t shm_lapid;
63721 +#endif
63722 };
63723
63724 /* shm_mode upper byte flags */
63725 diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
63726 index 642cb73..7ff7f9f 100644
63727 --- a/include/linux/skbuff.h
63728 +++ b/include/linux/skbuff.h
63729 @@ -680,7 +680,7 @@ static inline struct skb_shared_hwtstamps *skb_hwtstamps(struct sk_buff *skb)
63730 */
63731 static inline int skb_queue_empty(const struct sk_buff_head *list)
63732 {
63733 - return list->next == (struct sk_buff *)list;
63734 + return list->next == (const struct sk_buff *)list;
63735 }
63736
63737 /**
63738 @@ -693,7 +693,7 @@ static inline int skb_queue_empty(const struct sk_buff_head *list)
63739 static inline bool skb_queue_is_last(const struct sk_buff_head *list,
63740 const struct sk_buff *skb)
63741 {
63742 - return skb->next == (struct sk_buff *)list;
63743 + return skb->next == (const struct sk_buff *)list;
63744 }
63745
63746 /**
63747 @@ -706,7 +706,7 @@ static inline bool skb_queue_is_last(const struct sk_buff_head *list,
63748 static inline bool skb_queue_is_first(const struct sk_buff_head *list,
63749 const struct sk_buff *skb)
63750 {
63751 - return skb->prev == (struct sk_buff *)list;
63752 + return skb->prev == (const struct sk_buff *)list;
63753 }
63754
63755 /**
63756 @@ -1605,7 +1605,7 @@ static inline int pskb_network_may_pull(struct sk_buff *skb, unsigned int len)
63757 * NET_IP_ALIGN(2) + ethernet_header(14) + IP_header(20/40) + ports(8)
63758 */
63759 #ifndef NET_SKB_PAD
63760 -#define NET_SKB_PAD max(32, L1_CACHE_BYTES)
63761 +#define NET_SKB_PAD max(_AC(32,UL), L1_CACHE_BYTES)
63762 #endif
63763
63764 extern int ___pskb_trim(struct sk_buff *skb, unsigned int len);
63765 diff --git a/include/linux/slab.h b/include/linux/slab.h
63766 index 67d5d94..bbd740b 100644
63767 --- a/include/linux/slab.h
63768 +++ b/include/linux/slab.h
63769 @@ -11,12 +11,20 @@
63770
63771 #include <linux/gfp.h>
63772 #include <linux/types.h>
63773 +#include <linux/err.h>
63774
63775 /*
63776 * Flags to pass to kmem_cache_create().
63777 * The ones marked DEBUG are only valid if CONFIG_SLAB_DEBUG is set.
63778 */
63779 #define SLAB_DEBUG_FREE 0x00000100UL /* DEBUG: Perform (expensive) checks on free */
63780 +
63781 +#ifdef CONFIG_PAX_USERCOPY_SLABS
63782 +#define SLAB_USERCOPY 0x00000200UL /* PaX: Allow copying objs to/from userland */
63783 +#else
63784 +#define SLAB_USERCOPY 0x00000000UL
63785 +#endif
63786 +
63787 #define SLAB_RED_ZONE 0x00000400UL /* DEBUG: Red zone objs in a cache */
63788 #define SLAB_POISON 0x00000800UL /* DEBUG: Poison objects */
63789 #define SLAB_HWCACHE_ALIGN 0x00002000UL /* Align objs on cache lines */
63790 @@ -87,10 +95,13 @@
63791 * ZERO_SIZE_PTR can be passed to kfree though in the same way that NULL can.
63792 * Both make kfree a no-op.
63793 */
63794 -#define ZERO_SIZE_PTR ((void *)16)
63795 +#define ZERO_SIZE_PTR \
63796 +({ \
63797 + BUILD_BUG_ON(!(MAX_ERRNO & ~PAGE_MASK));\
63798 + (void *)(-MAX_ERRNO-1L); \
63799 +})
63800
63801 -#define ZERO_OR_NULL_PTR(x) ((unsigned long)(x) <= \
63802 - (unsigned long)ZERO_SIZE_PTR)
63803 +#define ZERO_OR_NULL_PTR(x) ((unsigned long)(x) - 1 >= (unsigned long)ZERO_SIZE_PTR - 1)
63804
63805 /*
63806 * struct kmem_cache related prototypes
63807 @@ -161,6 +172,8 @@ void * __must_check krealloc(const void *, size_t, gfp_t);
63808 void kfree(const void *);
63809 void kzfree(const void *);
63810 size_t ksize(const void *);
63811 +const char *check_heap_object(const void *ptr, unsigned long n, bool to);
63812 +bool is_usercopy_object(const void *ptr);
63813
63814 /*
63815 * Allocator specific definitions. These are mainly used to establish optimized
63816 @@ -298,7 +311,7 @@ static inline void *kmem_cache_alloc_node(struct kmem_cache *cachep,
63817 */
63818 #if defined(CONFIG_DEBUG_SLAB) || defined(CONFIG_SLUB) || \
63819 (defined(CONFIG_SLAB) && defined(CONFIG_TRACING))
63820 -extern void *__kmalloc_track_caller(size_t, gfp_t, unsigned long);
63821 +extern void *__kmalloc_track_caller(size_t, gfp_t, unsigned long) __size_overflow(1);
63822 #define kmalloc_track_caller(size, flags) \
63823 __kmalloc_track_caller(size, flags, _RET_IP_)
63824 #else
63825 @@ -317,7 +330,7 @@ extern void *__kmalloc_track_caller(size_t, gfp_t, unsigned long);
63826 */
63827 #if defined(CONFIG_DEBUG_SLAB) || defined(CONFIG_SLUB) || \
63828 (defined(CONFIG_SLAB) && defined(CONFIG_TRACING))
63829 -extern void *__kmalloc_node_track_caller(size_t, gfp_t, int, unsigned long);
63830 +extern void *__kmalloc_node_track_caller(size_t, gfp_t, int, unsigned long) __size_overflow(1);
63831 #define kmalloc_node_track_caller(size, flags, node) \
63832 __kmalloc_node_track_caller(size, flags, node, \
63833 _RET_IP_)
63834 diff --git a/include/linux/slab_def.h b/include/linux/slab_def.h
63835 index fbd1117..0a3d314 100644
63836 --- a/include/linux/slab_def.h
63837 +++ b/include/linux/slab_def.h
63838 @@ -66,10 +66,10 @@ struct kmem_cache {
63839 unsigned long node_allocs;
63840 unsigned long node_frees;
63841 unsigned long node_overflow;
63842 - atomic_t allochit;
63843 - atomic_t allocmiss;
63844 - atomic_t freehit;
63845 - atomic_t freemiss;
63846 + atomic_unchecked_t allochit;
63847 + atomic_unchecked_t allocmiss;
63848 + atomic_unchecked_t freehit;
63849 + atomic_unchecked_t freemiss;
63850
63851 /*
63852 * If debugging is enabled, then the allocator can add additional
63853 @@ -103,11 +103,16 @@ struct cache_sizes {
63854 #ifdef CONFIG_ZONE_DMA
63855 struct kmem_cache *cs_dmacachep;
63856 #endif
63857 +
63858 +#ifdef CONFIG_PAX_USERCOPY_SLABS
63859 + struct kmem_cache *cs_usercopycachep;
63860 +#endif
63861 +
63862 };
63863 extern struct cache_sizes malloc_sizes[];
63864
63865 void *kmem_cache_alloc(struct kmem_cache *, gfp_t);
63866 -void *__kmalloc(size_t size, gfp_t flags);
63867 +void *__kmalloc(size_t size, gfp_t flags) __size_overflow(1);
63868
63869 #ifdef CONFIG_TRACING
63870 extern void *kmem_cache_alloc_trace(size_t size,
63871 @@ -150,6 +155,13 @@ found:
63872 cachep = malloc_sizes[i].cs_dmacachep;
63873 else
63874 #endif
63875 +
63876 +#ifdef CONFIG_PAX_USERCOPY_SLABS
63877 + if (flags & GFP_USERCOPY)
63878 + cachep = malloc_sizes[i].cs_usercopycachep;
63879 + else
63880 +#endif
63881 +
63882 cachep = malloc_sizes[i].cs_cachep;
63883
63884 ret = kmem_cache_alloc_trace(size, cachep, flags);
63885 @@ -160,7 +172,7 @@ found:
63886 }
63887
63888 #ifdef CONFIG_NUMA
63889 -extern void *__kmalloc_node(size_t size, gfp_t flags, int node);
63890 +extern void *__kmalloc_node(size_t size, gfp_t flags, int node) __size_overflow(1);
63891 extern void *kmem_cache_alloc_node(struct kmem_cache *, gfp_t flags, int node);
63892
63893 #ifdef CONFIG_TRACING
63894 @@ -203,6 +215,13 @@ found:
63895 cachep = malloc_sizes[i].cs_dmacachep;
63896 else
63897 #endif
63898 +
63899 +#ifdef CONFIG_PAX_USERCOPY_SLABS
63900 + if (flags & GFP_USERCOPY)
63901 + cachep = malloc_sizes[i].cs_usercopycachep;
63902 + else
63903 +#endif
63904 +
63905 cachep = malloc_sizes[i].cs_cachep;
63906
63907 return kmem_cache_alloc_node_trace(size, cachep, flags, node);
63908 diff --git a/include/linux/slob_def.h b/include/linux/slob_def.h
63909 index 0ec00b3..22b4715 100644
63910 --- a/include/linux/slob_def.h
63911 +++ b/include/linux/slob_def.h
63912 @@ -9,7 +9,7 @@ static __always_inline void *kmem_cache_alloc(struct kmem_cache *cachep,
63913 return kmem_cache_alloc_node(cachep, flags, -1);
63914 }
63915
63916 -void *__kmalloc_node(size_t size, gfp_t flags, int node);
63917 +void *__kmalloc_node(size_t size, gfp_t flags, int node) __size_overflow(1);
63918
63919 static __always_inline void *kmalloc_node(size_t size, gfp_t flags, int node)
63920 {
63921 @@ -29,7 +29,7 @@ static __always_inline void *kmalloc(size_t size, gfp_t flags)
63922 return __kmalloc_node(size, flags, -1);
63923 }
63924
63925 -static __always_inline void *__kmalloc(size_t size, gfp_t flags)
63926 +static __always_inline __size_overflow(1) void *__kmalloc(size_t size, gfp_t flags)
63927 {
63928 return kmalloc(size, flags);
63929 }
63930 diff --git a/include/linux/slub_def.h b/include/linux/slub_def.h
63931 index c2f8c8b..d992a41 100644
63932 --- a/include/linux/slub_def.h
63933 +++ b/include/linux/slub_def.h
63934 @@ -92,7 +92,7 @@ struct kmem_cache {
63935 struct kmem_cache_order_objects max;
63936 struct kmem_cache_order_objects min;
63937 gfp_t allocflags; /* gfp flags to use on each alloc */
63938 - int refcount; /* Refcount for slab cache destroy */
63939 + atomic_t refcount; /* Refcount for slab cache destroy */
63940 void (*ctor)(void *);
63941 int inuse; /* Offset to metadata */
63942 int align; /* Alignment */
63943 @@ -153,7 +153,7 @@ extern struct kmem_cache *kmalloc_caches[SLUB_PAGE_SHIFT];
63944 * Sorry that the following has to be that ugly but some versions of GCC
63945 * have trouble with constant propagation and loops.
63946 */
63947 -static __always_inline int kmalloc_index(size_t size)
63948 +static __always_inline __size_overflow(1) int kmalloc_index(size_t size)
63949 {
63950 if (!size)
63951 return 0;
63952 @@ -218,7 +218,7 @@ static __always_inline struct kmem_cache *kmalloc_slab(size_t size)
63953 }
63954
63955 void *kmem_cache_alloc(struct kmem_cache *, gfp_t);
63956 -void *__kmalloc(size_t size, gfp_t flags);
63957 +void *__kmalloc(size_t size, gfp_t flags) __alloc_size(1) __size_overflow(1);
63958
63959 static __always_inline void *
63960 kmalloc_order(size_t size, gfp_t flags, unsigned int order)
63961 @@ -259,7 +259,7 @@ kmalloc_order_trace(size_t size, gfp_t flags, unsigned int order)
63962 }
63963 #endif
63964
63965 -static __always_inline void *kmalloc_large(size_t size, gfp_t flags)
63966 +static __always_inline __size_overflow(1) void *kmalloc_large(size_t size, gfp_t flags)
63967 {
63968 unsigned int order = get_order(size);
63969 return kmalloc_order_trace(size, flags, order);
63970 @@ -284,7 +284,7 @@ static __always_inline void *kmalloc(size_t size, gfp_t flags)
63971 }
63972
63973 #ifdef CONFIG_NUMA
63974 -void *__kmalloc_node(size_t size, gfp_t flags, int node);
63975 +void *__kmalloc_node(size_t size, gfp_t flags, int node) __size_overflow(1);
63976 void *kmem_cache_alloc_node(struct kmem_cache *, gfp_t flags, int node);
63977
63978 #ifdef CONFIG_TRACING
63979 diff --git a/include/linux/sonet.h b/include/linux/sonet.h
63980 index de8832d..0147b46 100644
63981 --- a/include/linux/sonet.h
63982 +++ b/include/linux/sonet.h
63983 @@ -61,7 +61,7 @@ struct sonet_stats {
63984 #include <linux/atomic.h>
63985
63986 struct k_sonet_stats {
63987 -#define __HANDLE_ITEM(i) atomic_t i
63988 +#define __HANDLE_ITEM(i) atomic_unchecked_t i
63989 __SONET_ITEMS
63990 #undef __HANDLE_ITEM
63991 };
63992 diff --git a/include/linux/sunrpc/clnt.h b/include/linux/sunrpc/clnt.h
63993 index 523547e..2cb7140 100644
63994 --- a/include/linux/sunrpc/clnt.h
63995 +++ b/include/linux/sunrpc/clnt.h
63996 @@ -174,9 +174,9 @@ static inline unsigned short rpc_get_port(const struct sockaddr *sap)
63997 {
63998 switch (sap->sa_family) {
63999 case AF_INET:
64000 - return ntohs(((struct sockaddr_in *)sap)->sin_port);
64001 + return ntohs(((const struct sockaddr_in *)sap)->sin_port);
64002 case AF_INET6:
64003 - return ntohs(((struct sockaddr_in6 *)sap)->sin6_port);
64004 + return ntohs(((const struct sockaddr_in6 *)sap)->sin6_port);
64005 }
64006 return 0;
64007 }
64008 @@ -209,7 +209,7 @@ static inline bool __rpc_cmp_addr4(const struct sockaddr *sap1,
64009 static inline bool __rpc_copy_addr4(struct sockaddr *dst,
64010 const struct sockaddr *src)
64011 {
64012 - const struct sockaddr_in *ssin = (struct sockaddr_in *) src;
64013 + const struct sockaddr_in *ssin = (const struct sockaddr_in *) src;
64014 struct sockaddr_in *dsin = (struct sockaddr_in *) dst;
64015
64016 dsin->sin_family = ssin->sin_family;
64017 @@ -312,7 +312,7 @@ static inline u32 rpc_get_scope_id(const struct sockaddr *sa)
64018 if (sa->sa_family != AF_INET6)
64019 return 0;
64020
64021 - return ((struct sockaddr_in6 *) sa)->sin6_scope_id;
64022 + return ((const struct sockaddr_in6 *) sa)->sin6_scope_id;
64023 }
64024
64025 #endif /* __KERNEL__ */
64026 diff --git a/include/linux/sunrpc/sched.h b/include/linux/sunrpc/sched.h
64027 index dc0c3cc..8503fb6 100644
64028 --- a/include/linux/sunrpc/sched.h
64029 +++ b/include/linux/sunrpc/sched.h
64030 @@ -106,6 +106,7 @@ struct rpc_call_ops {
64031 void (*rpc_count_stats)(struct rpc_task *, void *);
64032 void (*rpc_release)(void *);
64033 };
64034 +typedef struct rpc_call_ops __no_const rpc_call_ops_no_const;
64035
64036 struct rpc_task_setup {
64037 struct rpc_task *task;
64038 diff --git a/include/linux/sunrpc/svc_rdma.h b/include/linux/sunrpc/svc_rdma.h
64039 index 0b8e3e6..33e0a01 100644
64040 --- a/include/linux/sunrpc/svc_rdma.h
64041 +++ b/include/linux/sunrpc/svc_rdma.h
64042 @@ -53,15 +53,15 @@ extern unsigned int svcrdma_ord;
64043 extern unsigned int svcrdma_max_requests;
64044 extern unsigned int svcrdma_max_req_size;
64045
64046 -extern atomic_t rdma_stat_recv;
64047 -extern atomic_t rdma_stat_read;
64048 -extern atomic_t rdma_stat_write;
64049 -extern atomic_t rdma_stat_sq_starve;
64050 -extern atomic_t rdma_stat_rq_starve;
64051 -extern atomic_t rdma_stat_rq_poll;
64052 -extern atomic_t rdma_stat_rq_prod;
64053 -extern atomic_t rdma_stat_sq_poll;
64054 -extern atomic_t rdma_stat_sq_prod;
64055 +extern atomic_unchecked_t rdma_stat_recv;
64056 +extern atomic_unchecked_t rdma_stat_read;
64057 +extern atomic_unchecked_t rdma_stat_write;
64058 +extern atomic_unchecked_t rdma_stat_sq_starve;
64059 +extern atomic_unchecked_t rdma_stat_rq_starve;
64060 +extern atomic_unchecked_t rdma_stat_rq_poll;
64061 +extern atomic_unchecked_t rdma_stat_rq_prod;
64062 +extern atomic_unchecked_t rdma_stat_sq_poll;
64063 +extern atomic_unchecked_t rdma_stat_sq_prod;
64064
64065 #define RPCRDMA_VERSION 1
64066
64067 diff --git a/include/linux/sysctl.h b/include/linux/sysctl.h
64068 index c34b4c8..a65b67d 100644
64069 --- a/include/linux/sysctl.h
64070 +++ b/include/linux/sysctl.h
64071 @@ -155,7 +155,11 @@ enum
64072 KERN_PANIC_ON_NMI=76, /* int: whether we will panic on an unrecovered */
64073 };
64074
64075 -
64076 +#ifdef CONFIG_PAX_SOFTMODE
64077 +enum {
64078 + PAX_SOFTMODE=1 /* PaX: disable/enable soft mode */
64079 +};
64080 +#endif
64081
64082 /* CTL_VM names: */
64083 enum
64084 @@ -948,6 +952,8 @@ typedef int proc_handler (struct ctl_table *ctl, int write,
64085
64086 extern int proc_dostring(struct ctl_table *, int,
64087 void __user *, size_t *, loff_t *);
64088 +extern int proc_dostring_modpriv(struct ctl_table *, int,
64089 + void __user *, size_t *, loff_t *);
64090 extern int proc_dointvec(struct ctl_table *, int,
64091 void __user *, size_t *, loff_t *);
64092 extern int proc_dointvec_minmax(struct ctl_table *, int,
64093 diff --git a/include/linux/tty.h b/include/linux/tty.h
64094 index 9f47ab5..73da944 100644
64095 --- a/include/linux/tty.h
64096 +++ b/include/linux/tty.h
64097 @@ -225,7 +225,7 @@ struct tty_port {
64098 const struct tty_port_operations *ops; /* Port operations */
64099 spinlock_t lock; /* Lock protecting tty field */
64100 int blocked_open; /* Waiting to open */
64101 - int count; /* Usage count */
64102 + atomic_t count; /* Usage count */
64103 wait_queue_head_t open_wait; /* Open waiters */
64104 wait_queue_head_t close_wait; /* Close waiters */
64105 wait_queue_head_t delta_msr_wait; /* Modem status change */
64106 @@ -525,7 +525,7 @@ extern int tty_port_open(struct tty_port *port,
64107 struct tty_struct *tty, struct file *filp);
64108 static inline int tty_port_users(struct tty_port *port)
64109 {
64110 - return port->count + port->blocked_open;
64111 + return atomic_read(&port->count) + port->blocked_open;
64112 }
64113
64114 extern int tty_register_ldisc(int disc, struct tty_ldisc_ops *new_ldisc);
64115 diff --git a/include/linux/tty_ldisc.h b/include/linux/tty_ldisc.h
64116 index fb79dd8d..07d4773 100644
64117 --- a/include/linux/tty_ldisc.h
64118 +++ b/include/linux/tty_ldisc.h
64119 @@ -149,7 +149,7 @@ struct tty_ldisc_ops {
64120
64121 struct module *owner;
64122
64123 - int refcount;
64124 + atomic_t refcount;
64125 };
64126
64127 struct tty_ldisc {
64128 diff --git a/include/linux/types.h b/include/linux/types.h
64129 index 9c1bd53..c2370f6 100644
64130 --- a/include/linux/types.h
64131 +++ b/include/linux/types.h
64132 @@ -220,10 +220,26 @@ typedef struct {
64133 int counter;
64134 } atomic_t;
64135
64136 +#ifdef CONFIG_PAX_REFCOUNT
64137 +typedef struct {
64138 + int counter;
64139 +} atomic_unchecked_t;
64140 +#else
64141 +typedef atomic_t atomic_unchecked_t;
64142 +#endif
64143 +
64144 #ifdef CONFIG_64BIT
64145 typedef struct {
64146 long counter;
64147 } atomic64_t;
64148 +
64149 +#ifdef CONFIG_PAX_REFCOUNT
64150 +typedef struct {
64151 + long counter;
64152 +} atomic64_unchecked_t;
64153 +#else
64154 +typedef atomic64_t atomic64_unchecked_t;
64155 +#endif
64156 #endif
64157
64158 struct list_head {
64159 diff --git a/include/linux/uaccess.h b/include/linux/uaccess.h
64160 index 5ca0951..ab496a5 100644
64161 --- a/include/linux/uaccess.h
64162 +++ b/include/linux/uaccess.h
64163 @@ -76,11 +76,11 @@ static inline unsigned long __copy_from_user_nocache(void *to,
64164 long ret; \
64165 mm_segment_t old_fs = get_fs(); \
64166 \
64167 - set_fs(KERNEL_DS); \
64168 pagefault_disable(); \
64169 - ret = __copy_from_user_inatomic(&(retval), (__force typeof(retval) __user *)(addr), sizeof(retval)); \
64170 - pagefault_enable(); \
64171 + set_fs(KERNEL_DS); \
64172 + ret = __copy_from_user_inatomic(&(retval), (typeof(retval) __force_user *)(addr), sizeof(retval)); \
64173 set_fs(old_fs); \
64174 + pagefault_enable(); \
64175 ret; \
64176 })
64177
64178 diff --git a/include/linux/unaligned/access_ok.h b/include/linux/unaligned/access_ok.h
64179 index 99c1b4d..bb94261 100644
64180 --- a/include/linux/unaligned/access_ok.h
64181 +++ b/include/linux/unaligned/access_ok.h
64182 @@ -6,32 +6,32 @@
64183
64184 static inline u16 get_unaligned_le16(const void *p)
64185 {
64186 - return le16_to_cpup((__le16 *)p);
64187 + return le16_to_cpup((const __le16 *)p);
64188 }
64189
64190 static inline u32 get_unaligned_le32(const void *p)
64191 {
64192 - return le32_to_cpup((__le32 *)p);
64193 + return le32_to_cpup((const __le32 *)p);
64194 }
64195
64196 static inline u64 get_unaligned_le64(const void *p)
64197 {
64198 - return le64_to_cpup((__le64 *)p);
64199 + return le64_to_cpup((const __le64 *)p);
64200 }
64201
64202 static inline u16 get_unaligned_be16(const void *p)
64203 {
64204 - return be16_to_cpup((__be16 *)p);
64205 + return be16_to_cpup((const __be16 *)p);
64206 }
64207
64208 static inline u32 get_unaligned_be32(const void *p)
64209 {
64210 - return be32_to_cpup((__be32 *)p);
64211 + return be32_to_cpup((const __be32 *)p);
64212 }
64213
64214 static inline u64 get_unaligned_be64(const void *p)
64215 {
64216 - return be64_to_cpup((__be64 *)p);
64217 + return be64_to_cpup((const __be64 *)p);
64218 }
64219
64220 static inline void put_unaligned_le16(u16 val, void *p)
64221 diff --git a/include/linux/usb/renesas_usbhs.h b/include/linux/usb/renesas_usbhs.h
64222 index 547e59c..db6ad19 100644
64223 --- a/include/linux/usb/renesas_usbhs.h
64224 +++ b/include/linux/usb/renesas_usbhs.h
64225 @@ -39,7 +39,7 @@ enum {
64226 */
64227 struct renesas_usbhs_driver_callback {
64228 int (*notify_hotplug)(struct platform_device *pdev);
64229 -};
64230 +} __no_const;
64231
64232 /*
64233 * callback functions for platform
64234 @@ -97,7 +97,7 @@ struct renesas_usbhs_platform_callback {
64235 * VBUS control is needed for Host
64236 */
64237 int (*set_vbus)(struct platform_device *pdev, int enable);
64238 -};
64239 +} __no_const;
64240
64241 /*
64242 * parameters for renesas usbhs
64243 diff --git a/include/linux/vermagic.h b/include/linux/vermagic.h
64244 index 6f8fbcf..8259001 100644
64245 --- a/include/linux/vermagic.h
64246 +++ b/include/linux/vermagic.h
64247 @@ -25,9 +25,35 @@
64248 #define MODULE_ARCH_VERMAGIC ""
64249 #endif
64250
64251 +#ifdef CONFIG_PAX_REFCOUNT
64252 +#define MODULE_PAX_REFCOUNT "REFCOUNT "
64253 +#else
64254 +#define MODULE_PAX_REFCOUNT ""
64255 +#endif
64256 +
64257 +#ifdef CONSTIFY_PLUGIN
64258 +#define MODULE_CONSTIFY_PLUGIN "CONSTIFY_PLUGIN "
64259 +#else
64260 +#define MODULE_CONSTIFY_PLUGIN ""
64261 +#endif
64262 +
64263 +#ifdef STACKLEAK_PLUGIN
64264 +#define MODULE_STACKLEAK_PLUGIN "STACKLEAK_PLUGIN "
64265 +#else
64266 +#define MODULE_STACKLEAK_PLUGIN ""
64267 +#endif
64268 +
64269 +#ifdef CONFIG_GRKERNSEC
64270 +#define MODULE_GRSEC "GRSEC "
64271 +#else
64272 +#define MODULE_GRSEC ""
64273 +#endif
64274 +
64275 #define VERMAGIC_STRING \
64276 UTS_RELEASE " " \
64277 MODULE_VERMAGIC_SMP MODULE_VERMAGIC_PREEMPT \
64278 MODULE_VERMAGIC_MODULE_UNLOAD MODULE_VERMAGIC_MODVERSIONS \
64279 - MODULE_ARCH_VERMAGIC
64280 + MODULE_ARCH_VERMAGIC \
64281 + MODULE_PAX_REFCOUNT MODULE_CONSTIFY_PLUGIN MODULE_STACKLEAK_PLUGIN \
64282 + MODULE_GRSEC
64283
64284 diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h
64285 index dcdfc2b..ec79ab5 100644
64286 --- a/include/linux/vmalloc.h
64287 +++ b/include/linux/vmalloc.h
64288 @@ -14,6 +14,11 @@ struct vm_area_struct; /* vma defining user mapping in mm_types.h */
64289 #define VM_USERMAP 0x00000008 /* suitable for remap_vmalloc_range */
64290 #define VM_VPAGES 0x00000010 /* buffer for pages was vmalloc'ed */
64291 #define VM_UNLIST 0x00000020 /* vm_struct is not listed in vmlist */
64292 +
64293 +#if defined(CONFIG_MODULES) && defined(CONFIG_X86) && defined(CONFIG_PAX_KERNEXEC)
64294 +#define VM_KERNEXEC 0x00000040 /* allocate from executable kernel memory range */
64295 +#endif
64296 +
64297 /* bits [20..32] reserved for arch specific ioremap internals */
64298
64299 /*
64300 @@ -62,7 +67,7 @@ extern void *vmalloc_32_user(unsigned long size);
64301 extern void *__vmalloc(unsigned long size, gfp_t gfp_mask, pgprot_t prot);
64302 extern void *__vmalloc_node_range(unsigned long size, unsigned long align,
64303 unsigned long start, unsigned long end, gfp_t gfp_mask,
64304 - pgprot_t prot, int node, void *caller);
64305 + pgprot_t prot, int node, void *caller) __size_overflow(1);
64306 extern void vfree(const void *addr);
64307
64308 extern void *vmap(struct page **pages, unsigned int count,
64309 @@ -123,8 +128,8 @@ extern struct vm_struct *alloc_vm_area(size_t size, pte_t **ptes);
64310 extern void free_vm_area(struct vm_struct *area);
64311
64312 /* for /dev/kmem */
64313 -extern long vread(char *buf, char *addr, unsigned long count);
64314 -extern long vwrite(char *buf, char *addr, unsigned long count);
64315 +extern long vread(char *buf, char *addr, unsigned long count) __size_overflow(3);
64316 +extern long vwrite(char *buf, char *addr, unsigned long count) __size_overflow(3);
64317
64318 /*
64319 * Internals. Dont't use..
64320 diff --git a/include/linux/vmstat.h b/include/linux/vmstat.h
64321 index 65efb92..137adbb 100644
64322 --- a/include/linux/vmstat.h
64323 +++ b/include/linux/vmstat.h
64324 @@ -87,18 +87,18 @@ static inline void vm_events_fold_cpu(int cpu)
64325 /*
64326 * Zone based page accounting with per cpu differentials.
64327 */
64328 -extern atomic_long_t vm_stat[NR_VM_ZONE_STAT_ITEMS];
64329 +extern atomic_long_unchecked_t vm_stat[NR_VM_ZONE_STAT_ITEMS];
64330
64331 static inline void zone_page_state_add(long x, struct zone *zone,
64332 enum zone_stat_item item)
64333 {
64334 - atomic_long_add(x, &zone->vm_stat[item]);
64335 - atomic_long_add(x, &vm_stat[item]);
64336 + atomic_long_add_unchecked(x, &zone->vm_stat[item]);
64337 + atomic_long_add_unchecked(x, &vm_stat[item]);
64338 }
64339
64340 static inline unsigned long global_page_state(enum zone_stat_item item)
64341 {
64342 - long x = atomic_long_read(&vm_stat[item]);
64343 + long x = atomic_long_read_unchecked(&vm_stat[item]);
64344 #ifdef CONFIG_SMP
64345 if (x < 0)
64346 x = 0;
64347 @@ -109,7 +109,7 @@ static inline unsigned long global_page_state(enum zone_stat_item item)
64348 static inline unsigned long zone_page_state(struct zone *zone,
64349 enum zone_stat_item item)
64350 {
64351 - long x = atomic_long_read(&zone->vm_stat[item]);
64352 + long x = atomic_long_read_unchecked(&zone->vm_stat[item]);
64353 #ifdef CONFIG_SMP
64354 if (x < 0)
64355 x = 0;
64356 @@ -126,7 +126,7 @@ static inline unsigned long zone_page_state(struct zone *zone,
64357 static inline unsigned long zone_page_state_snapshot(struct zone *zone,
64358 enum zone_stat_item item)
64359 {
64360 - long x = atomic_long_read(&zone->vm_stat[item]);
64361 + long x = atomic_long_read_unchecked(&zone->vm_stat[item]);
64362
64363 #ifdef CONFIG_SMP
64364 int cpu;
64365 @@ -221,8 +221,8 @@ static inline void __mod_zone_page_state(struct zone *zone,
64366
64367 static inline void __inc_zone_state(struct zone *zone, enum zone_stat_item item)
64368 {
64369 - atomic_long_inc(&zone->vm_stat[item]);
64370 - atomic_long_inc(&vm_stat[item]);
64371 + atomic_long_inc_unchecked(&zone->vm_stat[item]);
64372 + atomic_long_inc_unchecked(&vm_stat[item]);
64373 }
64374
64375 static inline void __inc_zone_page_state(struct page *page,
64376 @@ -233,8 +233,8 @@ static inline void __inc_zone_page_state(struct page *page,
64377
64378 static inline void __dec_zone_state(struct zone *zone, enum zone_stat_item item)
64379 {
64380 - atomic_long_dec(&zone->vm_stat[item]);
64381 - atomic_long_dec(&vm_stat[item]);
64382 + atomic_long_dec_unchecked(&zone->vm_stat[item]);
64383 + atomic_long_dec_unchecked(&vm_stat[item]);
64384 }
64385
64386 static inline void __dec_zone_page_state(struct page *page,
64387 diff --git a/include/linux/xattr.h b/include/linux/xattr.h
64388 index e5d1220..ef6e406 100644
64389 --- a/include/linux/xattr.h
64390 +++ b/include/linux/xattr.h
64391 @@ -57,6 +57,11 @@
64392 #define XATTR_POSIX_ACL_DEFAULT "posix_acl_default"
64393 #define XATTR_NAME_POSIX_ACL_DEFAULT XATTR_SYSTEM_PREFIX XATTR_POSIX_ACL_DEFAULT
64394
64395 +/* User namespace */
64396 +#define XATTR_PAX_PREFIX XATTR_USER_PREFIX "pax."
64397 +#define XATTR_PAX_FLAGS_SUFFIX "flags"
64398 +#define XATTR_NAME_PAX_FLAGS XATTR_PAX_PREFIX XATTR_PAX_FLAGS_SUFFIX
64399 +
64400 #ifdef __KERNEL__
64401
64402 #include <linux/types.h>
64403 diff --git a/include/media/saa7146_vv.h b/include/media/saa7146_vv.h
64404 index 944ecdf..a3994fc 100644
64405 --- a/include/media/saa7146_vv.h
64406 +++ b/include/media/saa7146_vv.h
64407 @@ -161,8 +161,8 @@ struct saa7146_ext_vv
64408 int (*std_callback)(struct saa7146_dev*, struct saa7146_standard *);
64409
64410 /* the extension can override this */
64411 - struct v4l2_ioctl_ops vid_ops;
64412 - struct v4l2_ioctl_ops vbi_ops;
64413 + v4l2_ioctl_ops_no_const vid_ops;
64414 + v4l2_ioctl_ops_no_const vbi_ops;
64415 /* pointer to the saa7146 core ops */
64416 const struct v4l2_ioctl_ops *core_ops;
64417
64418 diff --git a/include/media/v4l2-dev.h b/include/media/v4l2-dev.h
64419 index a056e6e..31023a5 100644
64420 --- a/include/media/v4l2-dev.h
64421 +++ b/include/media/v4l2-dev.h
64422 @@ -73,7 +73,8 @@ struct v4l2_file_operations {
64423 int (*mmap) (struct file *, struct vm_area_struct *);
64424 int (*open) (struct file *);
64425 int (*release) (struct file *);
64426 -};
64427 +} __do_const;
64428 +typedef struct v4l2_file_operations __no_const v4l2_file_operations_no_const;
64429
64430 /*
64431 * Newer version of video_device, handled by videodev2.c
64432 diff --git a/include/media/v4l2-ioctl.h b/include/media/v4l2-ioctl.h
64433 index d8b76f7..7d5aa18 100644
64434 --- a/include/media/v4l2-ioctl.h
64435 +++ b/include/media/v4l2-ioctl.h
64436 @@ -287,7 +287,7 @@ struct v4l2_ioctl_ops {
64437 long (*vidioc_default) (struct file *file, void *fh,
64438 bool valid_prio, int cmd, void *arg);
64439 };
64440 -
64441 +typedef struct v4l2_ioctl_ops __no_const v4l2_ioctl_ops_no_const;
64442
64443 /* v4l debugging and diagnostics */
64444
64445 diff --git a/include/net/caif/caif_hsi.h b/include/net/caif/caif_hsi.h
64446 index 439dadc..1c67e3f 100644
64447 --- a/include/net/caif/caif_hsi.h
64448 +++ b/include/net/caif/caif_hsi.h
64449 @@ -98,7 +98,7 @@ struct cfhsi_drv {
64450 void (*rx_done_cb) (struct cfhsi_drv *drv);
64451 void (*wake_up_cb) (struct cfhsi_drv *drv);
64452 void (*wake_down_cb) (struct cfhsi_drv *drv);
64453 -};
64454 +} __no_const;
64455
64456 /* Structure implemented by HSI device. */
64457 struct cfhsi_dev {
64458 diff --git a/include/net/caif/cfctrl.h b/include/net/caif/cfctrl.h
64459 index 9e5425b..8136ffc 100644
64460 --- a/include/net/caif/cfctrl.h
64461 +++ b/include/net/caif/cfctrl.h
64462 @@ -52,7 +52,7 @@ struct cfctrl_rsp {
64463 void (*radioset_rsp)(void);
64464 void (*reject_rsp)(struct cflayer *layer, u8 linkid,
64465 struct cflayer *client_layer);
64466 -};
64467 +} __no_const;
64468
64469 /* Link Setup Parameters for CAIF-Links. */
64470 struct cfctrl_link_param {
64471 @@ -101,8 +101,8 @@ struct cfctrl_request_info {
64472 struct cfctrl {
64473 struct cfsrvl serv;
64474 struct cfctrl_rsp res;
64475 - atomic_t req_seq_no;
64476 - atomic_t rsp_seq_no;
64477 + atomic_unchecked_t req_seq_no;
64478 + atomic_unchecked_t rsp_seq_no;
64479 struct list_head list;
64480 /* Protects from simultaneous access to first_req list */
64481 spinlock_t info_list_lock;
64482 diff --git a/include/net/flow.h b/include/net/flow.h
64483 index 6c469db..7743b8e 100644
64484 --- a/include/net/flow.h
64485 +++ b/include/net/flow.h
64486 @@ -221,6 +221,6 @@ extern struct flow_cache_object *flow_cache_lookup(
64487
64488 extern void flow_cache_flush(void);
64489 extern void flow_cache_flush_deferred(void);
64490 -extern atomic_t flow_cache_genid;
64491 +extern atomic_unchecked_t flow_cache_genid;
64492
64493 #endif
64494 diff --git a/include/net/inetpeer.h b/include/net/inetpeer.h
64495 index 2040bff..f4c0733 100644
64496 --- a/include/net/inetpeer.h
64497 +++ b/include/net/inetpeer.h
64498 @@ -51,8 +51,8 @@ struct inet_peer {
64499 */
64500 union {
64501 struct {
64502 - atomic_t rid; /* Frag reception counter */
64503 - atomic_t ip_id_count; /* IP ID for the next packet */
64504 + atomic_unchecked_t rid; /* Frag reception counter */
64505 + atomic_unchecked_t ip_id_count; /* IP ID for the next packet */
64506 __u32 tcp_ts;
64507 __u32 tcp_ts_stamp;
64508 };
64509 @@ -118,11 +118,11 @@ static inline int inet_getid(struct inet_peer *p, int more)
64510 more++;
64511 inet_peer_refcheck(p);
64512 do {
64513 - old = atomic_read(&p->ip_id_count);
64514 + old = atomic_read_unchecked(&p->ip_id_count);
64515 new = old + more;
64516 if (!new)
64517 new = 1;
64518 - } while (atomic_cmpxchg(&p->ip_id_count, old, new) != old);
64519 + } while (atomic_cmpxchg_unchecked(&p->ip_id_count, old, new) != old);
64520 return new;
64521 }
64522
64523 diff --git a/include/net/ip_fib.h b/include/net/ip_fib.h
64524 index 78df0866..00e5c9b 100644
64525 --- a/include/net/ip_fib.h
64526 +++ b/include/net/ip_fib.h
64527 @@ -146,7 +146,7 @@ extern __be32 fib_info_update_nh_saddr(struct net *net, struct fib_nh *nh);
64528
64529 #define FIB_RES_SADDR(net, res) \
64530 ((FIB_RES_NH(res).nh_saddr_genid == \
64531 - atomic_read(&(net)->ipv4.dev_addr_genid)) ? \
64532 + atomic_read_unchecked(&(net)->ipv4.dev_addr_genid)) ? \
64533 FIB_RES_NH(res).nh_saddr : \
64534 fib_info_update_nh_saddr((net), &FIB_RES_NH(res)))
64535 #define FIB_RES_GW(res) (FIB_RES_NH(res).nh_gw)
64536 diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h
64537 index 95374d1..2300e36 100644
64538 --- a/include/net/ip_vs.h
64539 +++ b/include/net/ip_vs.h
64540 @@ -510,7 +510,7 @@ struct ip_vs_conn {
64541 struct ip_vs_conn *control; /* Master control connection */
64542 atomic_t n_control; /* Number of controlled ones */
64543 struct ip_vs_dest *dest; /* real server */
64544 - atomic_t in_pkts; /* incoming packet counter */
64545 + atomic_unchecked_t in_pkts; /* incoming packet counter */
64546
64547 /* packet transmitter for different forwarding methods. If it
64548 mangles the packet, it must return NF_DROP or better NF_STOLEN,
64549 @@ -648,7 +648,7 @@ struct ip_vs_dest {
64550 __be16 port; /* port number of the server */
64551 union nf_inet_addr addr; /* IP address of the server */
64552 volatile unsigned int flags; /* dest status flags */
64553 - atomic_t conn_flags; /* flags to copy to conn */
64554 + atomic_unchecked_t conn_flags; /* flags to copy to conn */
64555 atomic_t weight; /* server weight */
64556
64557 atomic_t refcnt; /* reference counter */
64558 diff --git a/include/net/irda/ircomm_core.h b/include/net/irda/ircomm_core.h
64559 index 69b610a..fe3962c 100644
64560 --- a/include/net/irda/ircomm_core.h
64561 +++ b/include/net/irda/ircomm_core.h
64562 @@ -51,7 +51,7 @@ typedef struct {
64563 int (*connect_response)(struct ircomm_cb *, struct sk_buff *);
64564 int (*disconnect_request)(struct ircomm_cb *, struct sk_buff *,
64565 struct ircomm_info *);
64566 -} call_t;
64567 +} __no_const call_t;
64568
64569 struct ircomm_cb {
64570 irda_queue_t queue;
64571 diff --git a/include/net/irda/ircomm_tty.h b/include/net/irda/ircomm_tty.h
64572 index 59ba38bc..d515662 100644
64573 --- a/include/net/irda/ircomm_tty.h
64574 +++ b/include/net/irda/ircomm_tty.h
64575 @@ -35,6 +35,7 @@
64576 #include <linux/termios.h>
64577 #include <linux/timer.h>
64578 #include <linux/tty.h> /* struct tty_struct */
64579 +#include <asm/local.h>
64580
64581 #include <net/irda/irias_object.h>
64582 #include <net/irda/ircomm_core.h>
64583 @@ -105,8 +106,8 @@ struct ircomm_tty_cb {
64584 unsigned short close_delay;
64585 unsigned short closing_wait; /* time to wait before closing */
64586
64587 - int open_count;
64588 - int blocked_open; /* # of blocked opens */
64589 + local_t open_count;
64590 + local_t blocked_open; /* # of blocked opens */
64591
64592 /* Protect concurent access to :
64593 * o self->open_count
64594 diff --git a/include/net/iucv/af_iucv.h b/include/net/iucv/af_iucv.h
64595 index cc7c197..9f2da2a 100644
64596 --- a/include/net/iucv/af_iucv.h
64597 +++ b/include/net/iucv/af_iucv.h
64598 @@ -141,7 +141,7 @@ struct iucv_sock {
64599 struct iucv_sock_list {
64600 struct hlist_head head;
64601 rwlock_t lock;
64602 - atomic_t autobind_name;
64603 + atomic_unchecked_t autobind_name;
64604 };
64605
64606 unsigned int iucv_sock_poll(struct file *file, struct socket *sock,
64607 diff --git a/include/net/neighbour.h b/include/net/neighbour.h
64608 index 6cdfeed..55a0256 100644
64609 --- a/include/net/neighbour.h
64610 +++ b/include/net/neighbour.h
64611 @@ -123,7 +123,7 @@ struct neigh_ops {
64612 void (*error_report)(struct neighbour *, struct sk_buff *);
64613 int (*output)(struct neighbour *, struct sk_buff *);
64614 int (*connected_output)(struct neighbour *, struct sk_buff *);
64615 -};
64616 +} __do_const;
64617
64618 struct pneigh_entry {
64619 struct pneigh_entry *next;
64620 diff --git a/include/net/netlink.h b/include/net/netlink.h
64621 index 785f37a..c81dc0c 100644
64622 --- a/include/net/netlink.h
64623 +++ b/include/net/netlink.h
64624 @@ -520,7 +520,7 @@ static inline void *nlmsg_get_pos(struct sk_buff *skb)
64625 static inline void nlmsg_trim(struct sk_buff *skb, const void *mark)
64626 {
64627 if (mark)
64628 - skb_trim(skb, (unsigned char *) mark - skb->data);
64629 + skb_trim(skb, (const unsigned char *) mark - skb->data);
64630 }
64631
64632 /**
64633 diff --git a/include/net/netns/ipv4.h b/include/net/netns/ipv4.h
64634 index bbd023a..97c6d0d 100644
64635 --- a/include/net/netns/ipv4.h
64636 +++ b/include/net/netns/ipv4.h
64637 @@ -57,8 +57,8 @@ struct netns_ipv4 {
64638 unsigned int sysctl_ping_group_range[2];
64639 long sysctl_tcp_mem[3];
64640
64641 - atomic_t rt_genid;
64642 - atomic_t dev_addr_genid;
64643 + atomic_unchecked_t rt_genid;
64644 + atomic_unchecked_t dev_addr_genid;
64645
64646 #ifdef CONFIG_IP_MROUTE
64647 #ifndef CONFIG_IP_MROUTE_MULTIPLE_TABLES
64648 diff --git a/include/net/sctp/sctp.h b/include/net/sctp/sctp.h
64649 index a2ef814..31a8e3f 100644
64650 --- a/include/net/sctp/sctp.h
64651 +++ b/include/net/sctp/sctp.h
64652 @@ -318,9 +318,9 @@ do { \
64653
64654 #else /* SCTP_DEBUG */
64655
64656 -#define SCTP_DEBUG_PRINTK(whatever...)
64657 -#define SCTP_DEBUG_PRINTK_CONT(fmt, args...)
64658 -#define SCTP_DEBUG_PRINTK_IPADDR(whatever...)
64659 +#define SCTP_DEBUG_PRINTK(whatever...) do {} while (0)
64660 +#define SCTP_DEBUG_PRINTK_CONT(fmt, args...) do {} while (0)
64661 +#define SCTP_DEBUG_PRINTK_IPADDR(whatever...) do {} while (0)
64662 #define SCTP_ENABLE_DEBUG
64663 #define SCTP_DISABLE_DEBUG
64664 #define SCTP_ASSERT(expr, str, func)
64665 diff --git a/include/net/sock.h b/include/net/sock.h
64666 index 4a45216..7af2578 100644
64667 --- a/include/net/sock.h
64668 +++ b/include/net/sock.h
64669 @@ -303,7 +303,7 @@ struct sock {
64670 #ifdef CONFIG_RPS
64671 __u32 sk_rxhash;
64672 #endif
64673 - atomic_t sk_drops;
64674 + atomic_unchecked_t sk_drops;
64675 int sk_rcvbuf;
64676
64677 struct sk_filter __rcu *sk_filter;
64678 @@ -1726,7 +1726,7 @@ static inline void sk_nocaps_add(struct sock *sk, netdev_features_t flags)
64679 }
64680
64681 static inline int skb_do_copy_data_nocache(struct sock *sk, struct sk_buff *skb,
64682 - char __user *from, char *to,
64683 + char __user *from, unsigned char *to,
64684 int copy, int offset)
64685 {
64686 if (skb->ip_summed == CHECKSUM_NONE) {
64687 diff --git a/include/net/tcp.h b/include/net/tcp.h
64688 index e79aa48..9929421 100644
64689 --- a/include/net/tcp.h
64690 +++ b/include/net/tcp.h
64691 @@ -1459,7 +1459,7 @@ struct tcp_seq_afinfo {
64692 char *name;
64693 sa_family_t family;
64694 const struct file_operations *seq_fops;
64695 - struct seq_operations seq_ops;
64696 + seq_operations_no_const seq_ops;
64697 };
64698
64699 struct tcp_iter_state {
64700 diff --git a/include/net/udp.h b/include/net/udp.h
64701 index 065f379..b661b40 100644
64702 --- a/include/net/udp.h
64703 +++ b/include/net/udp.h
64704 @@ -244,7 +244,7 @@ struct udp_seq_afinfo {
64705 sa_family_t family;
64706 struct udp_table *udp_table;
64707 const struct file_operations *seq_fops;
64708 - struct seq_operations seq_ops;
64709 + seq_operations_no_const seq_ops;
64710 };
64711
64712 struct udp_iter_state {
64713 diff --git a/include/net/xfrm.h b/include/net/xfrm.h
64714 index e0a55df..5890bca07 100644
64715 --- a/include/net/xfrm.h
64716 +++ b/include/net/xfrm.h
64717 @@ -505,7 +505,7 @@ struct xfrm_policy {
64718 struct timer_list timer;
64719
64720 struct flow_cache_object flo;
64721 - atomic_t genid;
64722 + atomic_unchecked_t genid;
64723 u32 priority;
64724 u32 index;
64725 struct xfrm_mark mark;
64726 diff --git a/include/rdma/iw_cm.h b/include/rdma/iw_cm.h
64727 index 1a046b1..ee0bef0 100644
64728 --- a/include/rdma/iw_cm.h
64729 +++ b/include/rdma/iw_cm.h
64730 @@ -122,7 +122,7 @@ struct iw_cm_verbs {
64731 int backlog);
64732
64733 int (*destroy_listen)(struct iw_cm_id *cm_id);
64734 -};
64735 +} __no_const;
64736
64737 /**
64738 * iw_create_cm_id - Create an IW CM identifier.
64739 diff --git a/include/scsi/libfc.h b/include/scsi/libfc.h
64740 index 8f9dfba..610ab6c 100644
64741 --- a/include/scsi/libfc.h
64742 +++ b/include/scsi/libfc.h
64743 @@ -756,6 +756,7 @@ struct libfc_function_template {
64744 */
64745 void (*disc_stop_final) (struct fc_lport *);
64746 };
64747 +typedef struct libfc_function_template __no_const libfc_function_template_no_const;
64748
64749 /**
64750 * struct fc_disc - Discovery context
64751 @@ -861,7 +862,7 @@ struct fc_lport {
64752 struct fc_vport *vport;
64753
64754 /* Operational Information */
64755 - struct libfc_function_template tt;
64756 + libfc_function_template_no_const tt;
64757 u8 link_up;
64758 u8 qfull;
64759 enum fc_lport_state state;
64760 diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h
64761 index ba96988..ecf2eb9 100644
64762 --- a/include/scsi/scsi_device.h
64763 +++ b/include/scsi/scsi_device.h
64764 @@ -163,9 +163,9 @@ struct scsi_device {
64765 unsigned int max_device_blocked; /* what device_blocked counts down from */
64766 #define SCSI_DEFAULT_DEVICE_BLOCKED 3
64767
64768 - atomic_t iorequest_cnt;
64769 - atomic_t iodone_cnt;
64770 - atomic_t ioerr_cnt;
64771 + atomic_unchecked_t iorequest_cnt;
64772 + atomic_unchecked_t iodone_cnt;
64773 + atomic_unchecked_t ioerr_cnt;
64774
64775 struct device sdev_gendev,
64776 sdev_dev;
64777 diff --git a/include/scsi/scsi_transport_fc.h b/include/scsi/scsi_transport_fc.h
64778 index 719faf1..07b6728 100644
64779 --- a/include/scsi/scsi_transport_fc.h
64780 +++ b/include/scsi/scsi_transport_fc.h
64781 @@ -739,7 +739,8 @@ struct fc_function_template {
64782 unsigned long show_host_system_hostname:1;
64783
64784 unsigned long disable_target_scan:1;
64785 -};
64786 +} __do_const;
64787 +typedef struct fc_function_template __no_const fc_function_template_no_const;
64788
64789
64790 /**
64791 diff --git a/include/sound/ak4xxx-adda.h b/include/sound/ak4xxx-adda.h
64792 index 030b87c..98a6954 100644
64793 --- a/include/sound/ak4xxx-adda.h
64794 +++ b/include/sound/ak4xxx-adda.h
64795 @@ -35,7 +35,7 @@ struct snd_ak4xxx_ops {
64796 void (*write)(struct snd_akm4xxx *ak, int chip, unsigned char reg,
64797 unsigned char val);
64798 void (*set_rate_val)(struct snd_akm4xxx *ak, unsigned int rate);
64799 -};
64800 +} __no_const;
64801
64802 #define AK4XXX_IMAGE_SIZE (AK4XXX_MAX_CHIPS * 16) /* 64 bytes */
64803
64804 diff --git a/include/sound/hwdep.h b/include/sound/hwdep.h
64805 index 8c05e47..2b5df97 100644
64806 --- a/include/sound/hwdep.h
64807 +++ b/include/sound/hwdep.h
64808 @@ -49,7 +49,7 @@ struct snd_hwdep_ops {
64809 struct snd_hwdep_dsp_status *status);
64810 int (*dsp_load)(struct snd_hwdep *hw,
64811 struct snd_hwdep_dsp_image *image);
64812 -};
64813 +} __no_const;
64814
64815 struct snd_hwdep {
64816 struct snd_card *card;
64817 diff --git a/include/sound/info.h b/include/sound/info.h
64818 index 9ca1a49..aba1728 100644
64819 --- a/include/sound/info.h
64820 +++ b/include/sound/info.h
64821 @@ -44,7 +44,7 @@ struct snd_info_entry_text {
64822 struct snd_info_buffer *buffer);
64823 void (*write)(struct snd_info_entry *entry,
64824 struct snd_info_buffer *buffer);
64825 -};
64826 +} __no_const;
64827
64828 struct snd_info_entry_ops {
64829 int (*open)(struct snd_info_entry *entry,
64830 diff --git a/include/sound/pcm.h b/include/sound/pcm.h
64831 index 0d11128..814178e 100644
64832 --- a/include/sound/pcm.h
64833 +++ b/include/sound/pcm.h
64834 @@ -81,6 +81,7 @@ struct snd_pcm_ops {
64835 int (*mmap)(struct snd_pcm_substream *substream, struct vm_area_struct *vma);
64836 int (*ack)(struct snd_pcm_substream *substream);
64837 };
64838 +typedef struct snd_pcm_ops __no_const snd_pcm_ops_no_const;
64839
64840 /*
64841 *
64842 diff --git a/include/sound/sb16_csp.h b/include/sound/sb16_csp.h
64843 index af1b49e..a5d55a5 100644
64844 --- a/include/sound/sb16_csp.h
64845 +++ b/include/sound/sb16_csp.h
64846 @@ -146,7 +146,7 @@ struct snd_sb_csp_ops {
64847 int (*csp_start) (struct snd_sb_csp * p, int sample_width, int channels);
64848 int (*csp_stop) (struct snd_sb_csp * p);
64849 int (*csp_qsound_transfer) (struct snd_sb_csp * p);
64850 -};
64851 +} __no_const;
64852
64853 /*
64854 * CSP private data
64855 diff --git a/include/sound/soc.h b/include/sound/soc.h
64856 index c703871..f7fbbbd 100644
64857 --- a/include/sound/soc.h
64858 +++ b/include/sound/soc.h
64859 @@ -757,7 +757,7 @@ struct snd_soc_platform_driver {
64860 unsigned int (*read)(struct snd_soc_platform *, unsigned int);
64861 int (*write)(struct snd_soc_platform *, unsigned int, unsigned int);
64862 int (*bespoke_trigger)(struct snd_pcm_substream *, int);
64863 -};
64864 +} __do_const;
64865
64866 struct snd_soc_platform {
64867 const char *name;
64868 @@ -949,7 +949,7 @@ struct snd_soc_pcm_runtime {
64869 struct snd_soc_dai_link *dai_link;
64870 struct mutex pcm_mutex;
64871 enum snd_soc_pcm_subclass pcm_subclass;
64872 - struct snd_pcm_ops ops;
64873 + snd_pcm_ops_no_const ops;
64874
64875 unsigned int dev_registered:1;
64876
64877 diff --git a/include/sound/tea575x-tuner.h b/include/sound/tea575x-tuner.h
64878 index 0c3c2fb..d9d9990 100644
64879 --- a/include/sound/tea575x-tuner.h
64880 +++ b/include/sound/tea575x-tuner.h
64881 @@ -44,7 +44,7 @@ struct snd_tea575x_ops {
64882
64883 struct snd_tea575x {
64884 struct v4l2_device *v4l2_dev;
64885 - struct v4l2_file_operations fops;
64886 + v4l2_file_operations_no_const fops;
64887 struct video_device vd; /* video device */
64888 int radio_nr; /* radio_nr */
64889 bool tea5759; /* 5759 chip is present */
64890 diff --git a/include/sound/ymfpci.h b/include/sound/ymfpci.h
64891 index 4119966..1a4671c 100644
64892 --- a/include/sound/ymfpci.h
64893 +++ b/include/sound/ymfpci.h
64894 @@ -358,7 +358,7 @@ struct snd_ymfpci {
64895 spinlock_t reg_lock;
64896 spinlock_t voice_lock;
64897 wait_queue_head_t interrupt_sleep;
64898 - atomic_t interrupt_sleep_count;
64899 + atomic_unchecked_t interrupt_sleep_count;
64900 struct snd_info_entry *proc_entry;
64901 const struct firmware *dsp_microcode;
64902 const struct firmware *controller_microcode;
64903 diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h
64904 index 362e0d9..36b9a83 100644
64905 --- a/include/target/target_core_base.h
64906 +++ b/include/target/target_core_base.h
64907 @@ -441,7 +441,7 @@ struct t10_reservation_ops {
64908 int (*t10_seq_non_holder)(struct se_cmd *, unsigned char *, u32);
64909 int (*t10_pr_register)(struct se_cmd *);
64910 int (*t10_pr_clear)(struct se_cmd *);
64911 -};
64912 +} __no_const;
64913
64914 struct t10_reservation {
64915 /* Reservation effects all target ports */
64916 @@ -780,7 +780,7 @@ struct se_device {
64917 spinlock_t stats_lock;
64918 /* Active commands on this virtual SE device */
64919 atomic_t simple_cmds;
64920 - atomic_t dev_ordered_id;
64921 + atomic_unchecked_t dev_ordered_id;
64922 atomic_t execute_tasks;
64923 atomic_t dev_ordered_sync;
64924 atomic_t dev_qf_count;
64925 diff --git a/include/trace/events/fs.h b/include/trace/events/fs.h
64926 new file mode 100644
64927 index 0000000..2efe49d
64928 --- /dev/null
64929 +++ b/include/trace/events/fs.h
64930 @@ -0,0 +1,53 @@
64931 +#undef TRACE_SYSTEM
64932 +#define TRACE_SYSTEM fs
64933 +
64934 +#if !defined(_TRACE_FS_H) || defined(TRACE_HEADER_MULTI_READ)
64935 +#define _TRACE_FS_H
64936 +
64937 +#include <linux/fs.h>
64938 +#include <linux/tracepoint.h>
64939 +
64940 +TRACE_EVENT(do_sys_open,
64941 +
64942 + TP_PROTO(char *filename, int flags, int mode),
64943 +
64944 + TP_ARGS(filename, flags, mode),
64945 +
64946 + TP_STRUCT__entry(
64947 + __string( filename, filename )
64948 + __field( int, flags )
64949 + __field( int, mode )
64950 + ),
64951 +
64952 + TP_fast_assign(
64953 + __assign_str(filename, filename);
64954 + __entry->flags = flags;
64955 + __entry->mode = mode;
64956 + ),
64957 +
64958 + TP_printk("\"%s\" %x %o",
64959 + __get_str(filename), __entry->flags, __entry->mode)
64960 +);
64961 +
64962 +TRACE_EVENT(open_exec,
64963 +
64964 + TP_PROTO(const char *filename),
64965 +
64966 + TP_ARGS(filename),
64967 +
64968 + TP_STRUCT__entry(
64969 + __string( filename, filename )
64970 + ),
64971 +
64972 + TP_fast_assign(
64973 + __assign_str(filename, filename);
64974 + ),
64975 +
64976 + TP_printk("\"%s\"",
64977 + __get_str(filename))
64978 +);
64979 +
64980 +#endif /* _TRACE_FS_H */
64981 +
64982 +/* This part must be outside protection */
64983 +#include <trace/define_trace.h>
64984 diff --git a/include/trace/events/irq.h b/include/trace/events/irq.h
64985 index 1c09820..7f5ec79 100644
64986 --- a/include/trace/events/irq.h
64987 +++ b/include/trace/events/irq.h
64988 @@ -36,7 +36,7 @@ struct softirq_action;
64989 */
64990 TRACE_EVENT(irq_handler_entry,
64991
64992 - TP_PROTO(int irq, struct irqaction *action),
64993 + TP_PROTO(int irq, const struct irqaction *action),
64994
64995 TP_ARGS(irq, action),
64996
64997 @@ -66,7 +66,7 @@ TRACE_EVENT(irq_handler_entry,
64998 */
64999 TRACE_EVENT(irq_handler_exit,
65000
65001 - TP_PROTO(int irq, struct irqaction *action, int ret),
65002 + TP_PROTO(int irq, const struct irqaction *action, int ret),
65003
65004 TP_ARGS(irq, action, ret),
65005
65006 diff --git a/include/video/udlfb.h b/include/video/udlfb.h
65007 index f9466fa..f4e2b81 100644
65008 --- a/include/video/udlfb.h
65009 +++ b/include/video/udlfb.h
65010 @@ -53,10 +53,10 @@ struct dlfb_data {
65011 u32 pseudo_palette[256];
65012 int blank_mode; /*one of FB_BLANK_ */
65013 /* blit-only rendering path metrics, exposed through sysfs */
65014 - atomic_t bytes_rendered; /* raw pixel-bytes driver asked to render */
65015 - atomic_t bytes_identical; /* saved effort with backbuffer comparison */
65016 - atomic_t bytes_sent; /* to usb, after compression including overhead */
65017 - atomic_t cpu_kcycles_used; /* transpired during pixel processing */
65018 + atomic_unchecked_t bytes_rendered; /* raw pixel-bytes driver asked to render */
65019 + atomic_unchecked_t bytes_identical; /* saved effort with backbuffer comparison */
65020 + atomic_unchecked_t bytes_sent; /* to usb, after compression including overhead */
65021 + atomic_unchecked_t cpu_kcycles_used; /* transpired during pixel processing */
65022 };
65023
65024 #define NR_USB_REQUEST_I2C_SUB_IO 0x02
65025 diff --git a/include/video/uvesafb.h b/include/video/uvesafb.h
65026 index 0993a22..32ba2fe 100644
65027 --- a/include/video/uvesafb.h
65028 +++ b/include/video/uvesafb.h
65029 @@ -177,6 +177,7 @@ struct uvesafb_par {
65030 u8 ypan; /* 0 - nothing, 1 - ypan, 2 - ywrap */
65031 u8 pmi_setpal; /* PMI for palette changes */
65032 u16 *pmi_base; /* protected mode interface location */
65033 + u8 *pmi_code; /* protected mode code location */
65034 void *pmi_start;
65035 void *pmi_pal;
65036 u8 *vbe_state_orig; /*
65037 diff --git a/init/Kconfig b/init/Kconfig
65038 index d07dcf9..fa47d0e 100644
65039 --- a/init/Kconfig
65040 +++ b/init/Kconfig
65041 @@ -835,6 +835,7 @@ endif # CGROUPS
65042
65043 config CHECKPOINT_RESTORE
65044 bool "Checkpoint/restore support" if EXPERT
65045 + depends on !GRKERNSEC
65046 default n
65047 help
65048 Enables additional kernel features in a sake of checkpoint/restore.
65049 @@ -1014,6 +1015,7 @@ config UIDGID_CONVERTED
65050 # Security modules
65051 depends on SECURITY_TOMOYO = n
65052 depends on SECURITY_APPARMOR = n
65053 + depends on GRKERNSEC = n
65054
65055 config UIDGID_STRICT_TYPE_CHECKS
65056 bool "Require conversions between uid/gids and their internal representation"
65057 @@ -1401,7 +1403,7 @@ config SLUB_DEBUG
65058
65059 config COMPAT_BRK
65060 bool "Disable heap randomization"
65061 - default y
65062 + default n
65063 help
65064 Randomizing heap placement makes heap exploits harder, but it
65065 also breaks ancient binaries (including anything libc5 based).
65066 @@ -1584,7 +1586,7 @@ config INIT_ALL_POSSIBLE
65067 config STOP_MACHINE
65068 bool
65069 default y
65070 - depends on (SMP && MODULE_UNLOAD) || HOTPLUG_CPU
65071 + depends on (SMP && MODULE_UNLOAD) || HOTPLUG_CPU || GRKERNSEC
65072 help
65073 Need stop_machine() primitive.
65074
65075 diff --git a/init/Makefile b/init/Makefile
65076 index 7bc47ee..6da2dc7 100644
65077 --- a/init/Makefile
65078 +++ b/init/Makefile
65079 @@ -2,6 +2,9 @@
65080 # Makefile for the linux kernel.
65081 #
65082
65083 +ccflags-y := $(GCC_PLUGINS_CFLAGS)
65084 +asflags-y := $(GCC_PLUGINS_AFLAGS)
65085 +
65086 obj-y := main.o version.o mounts.o
65087 ifneq ($(CONFIG_BLK_DEV_INITRD),y)
65088 obj-y += noinitramfs.o
65089 diff --git a/init/do_mounts.c b/init/do_mounts.c
65090 index d3f0aee..c9322f5 100644
65091 --- a/init/do_mounts.c
65092 +++ b/init/do_mounts.c
65093 @@ -336,11 +336,11 @@ static void __init get_fs_names(char *page)
65094 static int __init do_mount_root(char *name, char *fs, int flags, void *data)
65095 {
65096 struct super_block *s;
65097 - int err = sys_mount(name, "/root", fs, flags, data);
65098 + int err = sys_mount((char __force_user *)name, (char __force_user *)"/root", (char __force_user *)fs, flags, (void __force_user *)data);
65099 if (err)
65100 return err;
65101
65102 - sys_chdir("/root");
65103 + sys_chdir((const char __force_user *)"/root");
65104 s = current->fs->pwd.dentry->d_sb;
65105 ROOT_DEV = s->s_dev;
65106 printk(KERN_INFO
65107 @@ -460,18 +460,18 @@ void __init change_floppy(char *fmt, ...)
65108 va_start(args, fmt);
65109 vsprintf(buf, fmt, args);
65110 va_end(args);
65111 - fd = sys_open("/dev/root", O_RDWR | O_NDELAY, 0);
65112 + fd = sys_open((char __user *)"/dev/root", O_RDWR | O_NDELAY, 0);
65113 if (fd >= 0) {
65114 sys_ioctl(fd, FDEJECT, 0);
65115 sys_close(fd);
65116 }
65117 printk(KERN_NOTICE "VFS: Insert %s and press ENTER\n", buf);
65118 - fd = sys_open("/dev/console", O_RDWR, 0);
65119 + fd = sys_open((__force const char __user *)"/dev/console", O_RDWR, 0);
65120 if (fd >= 0) {
65121 sys_ioctl(fd, TCGETS, (long)&termios);
65122 termios.c_lflag &= ~ICANON;
65123 sys_ioctl(fd, TCSETSF, (long)&termios);
65124 - sys_read(fd, &c, 1);
65125 + sys_read(fd, (char __user *)&c, 1);
65126 termios.c_lflag |= ICANON;
65127 sys_ioctl(fd, TCSETSF, (long)&termios);
65128 sys_close(fd);
65129 @@ -565,6 +565,6 @@ void __init prepare_namespace(void)
65130 mount_root();
65131 out:
65132 devtmpfs_mount("dev");
65133 - sys_mount(".", "/", NULL, MS_MOVE, NULL);
65134 - sys_chroot(".");
65135 + sys_mount((char __force_user *)".", (char __force_user *)"/", NULL, MS_MOVE, NULL);
65136 + sys_chroot((const char __force_user *)".");
65137 }
65138 diff --git a/init/do_mounts.h b/init/do_mounts.h
65139 index f5b978a..69dbfe8 100644
65140 --- a/init/do_mounts.h
65141 +++ b/init/do_mounts.h
65142 @@ -15,15 +15,15 @@ extern int root_mountflags;
65143
65144 static inline int create_dev(char *name, dev_t dev)
65145 {
65146 - sys_unlink(name);
65147 - return sys_mknod(name, S_IFBLK|0600, new_encode_dev(dev));
65148 + sys_unlink((char __force_user *)name);
65149 + return sys_mknod((char __force_user *)name, S_IFBLK|0600, new_encode_dev(dev));
65150 }
65151
65152 #if BITS_PER_LONG == 32
65153 static inline u32 bstat(char *name)
65154 {
65155 struct stat64 stat;
65156 - if (sys_stat64(name, &stat) != 0)
65157 + if (sys_stat64((char __force_user *)name, (struct stat64 __force_user *)&stat) != 0)
65158 return 0;
65159 if (!S_ISBLK(stat.st_mode))
65160 return 0;
65161 @@ -35,7 +35,7 @@ static inline u32 bstat(char *name)
65162 static inline u32 bstat(char *name)
65163 {
65164 struct stat stat;
65165 - if (sys_newstat(name, &stat) != 0)
65166 + if (sys_newstat((const char __force_user *)name, (struct stat __force_user *)&stat) != 0)
65167 return 0;
65168 if (!S_ISBLK(stat.st_mode))
65169 return 0;
65170 diff --git a/init/do_mounts_initrd.c b/init/do_mounts_initrd.c
65171 index 135959a2..28a3f43 100644
65172 --- a/init/do_mounts_initrd.c
65173 +++ b/init/do_mounts_initrd.c
65174 @@ -53,13 +53,13 @@ static void __init handle_initrd(void)
65175 create_dev("/dev/root.old", Root_RAM0);
65176 /* mount initrd on rootfs' /root */
65177 mount_block_root("/dev/root.old", root_mountflags & ~MS_RDONLY);
65178 - sys_mkdir("/old", 0700);
65179 - root_fd = sys_open("/", 0, 0);
65180 - old_fd = sys_open("/old", 0, 0);
65181 + sys_mkdir((const char __force_user *)"/old", 0700);
65182 + root_fd = sys_open((const char __force_user *)"/", 0, 0);
65183 + old_fd = sys_open((const char __force_user *)"/old", 0, 0);
65184 /* move initrd over / and chdir/chroot in initrd root */
65185 - sys_chdir("/root");
65186 - sys_mount(".", "/", NULL, MS_MOVE, NULL);
65187 - sys_chroot(".");
65188 + sys_chdir((const char __force_user *)"/root");
65189 + sys_mount((char __force_user *)".", (char __force_user *)"/", NULL, MS_MOVE, NULL);
65190 + sys_chroot((const char __force_user *)".");
65191
65192 /*
65193 * In case that a resume from disk is carried out by linuxrc or one of
65194 @@ -76,15 +76,15 @@ static void __init handle_initrd(void)
65195
65196 /* move initrd to rootfs' /old */
65197 sys_fchdir(old_fd);
65198 - sys_mount("/", ".", NULL, MS_MOVE, NULL);
65199 + sys_mount((char __force_user *)"/", (char __force_user *)".", NULL, MS_MOVE, NULL);
65200 /* switch root and cwd back to / of rootfs */
65201 sys_fchdir(root_fd);
65202 - sys_chroot(".");
65203 + sys_chroot((const char __force_user *)".");
65204 sys_close(old_fd);
65205 sys_close(root_fd);
65206
65207 if (new_decode_dev(real_root_dev) == Root_RAM0) {
65208 - sys_chdir("/old");
65209 + sys_chdir((const char __force_user *)"/old");
65210 return;
65211 }
65212
65213 @@ -92,17 +92,17 @@ static void __init handle_initrd(void)
65214 mount_root();
65215
65216 printk(KERN_NOTICE "Trying to move old root to /initrd ... ");
65217 - error = sys_mount("/old", "/root/initrd", NULL, MS_MOVE, NULL);
65218 + error = sys_mount((char __force_user *)"/old", (char __force_user *)"/root/initrd", NULL, MS_MOVE, NULL);
65219 if (!error)
65220 printk("okay\n");
65221 else {
65222 - int fd = sys_open("/dev/root.old", O_RDWR, 0);
65223 + int fd = sys_open((const char __force_user *)"/dev/root.old", O_RDWR, 0);
65224 if (error == -ENOENT)
65225 printk("/initrd does not exist. Ignored.\n");
65226 else
65227 printk("failed\n");
65228 printk(KERN_NOTICE "Unmounting old root\n");
65229 - sys_umount("/old", MNT_DETACH);
65230 + sys_umount((char __force_user *)"/old", MNT_DETACH);
65231 printk(KERN_NOTICE "Trying to free ramdisk memory ... ");
65232 if (fd < 0) {
65233 error = fd;
65234 @@ -125,11 +125,11 @@ int __init initrd_load(void)
65235 * mounted in the normal path.
65236 */
65237 if (rd_load_image("/initrd.image") && ROOT_DEV != Root_RAM0) {
65238 - sys_unlink("/initrd.image");
65239 + sys_unlink((const char __force_user *)"/initrd.image");
65240 handle_initrd();
65241 return 1;
65242 }
65243 }
65244 - sys_unlink("/initrd.image");
65245 + sys_unlink((const char __force_user *)"/initrd.image");
65246 return 0;
65247 }
65248 diff --git a/init/do_mounts_md.c b/init/do_mounts_md.c
65249 index 8cb6db5..d729f50 100644
65250 --- a/init/do_mounts_md.c
65251 +++ b/init/do_mounts_md.c
65252 @@ -180,7 +180,7 @@ static void __init md_setup_drive(void)
65253 partitioned ? "_d" : "", minor,
65254 md_setup_args[ent].device_names);
65255
65256 - fd = sys_open(name, 0, 0);
65257 + fd = sys_open((char __force_user *)name, 0, 0);
65258 if (fd < 0) {
65259 printk(KERN_ERR "md: open failed - cannot start "
65260 "array %s\n", name);
65261 @@ -243,7 +243,7 @@ static void __init md_setup_drive(void)
65262 * array without it
65263 */
65264 sys_close(fd);
65265 - fd = sys_open(name, 0, 0);
65266 + fd = sys_open((char __force_user *)name, 0, 0);
65267 sys_ioctl(fd, BLKRRPART, 0);
65268 }
65269 sys_close(fd);
65270 @@ -293,7 +293,7 @@ static void __init autodetect_raid(void)
65271
65272 wait_for_device_probe();
65273
65274 - fd = sys_open("/dev/md0", 0, 0);
65275 + fd = sys_open((const char __force_user *) "/dev/md0", 0, 0);
65276 if (fd >= 0) {
65277 sys_ioctl(fd, RAID_AUTORUN, raid_autopart);
65278 sys_close(fd);
65279 diff --git a/init/init_task.c b/init/init_task.c
65280 index 8b2f399..f0797c9 100644
65281 --- a/init/init_task.c
65282 +++ b/init/init_task.c
65283 @@ -20,5 +20,9 @@ EXPORT_SYMBOL(init_task);
65284 * Initial thread structure. Alignment of this is handled by a special
65285 * linker map entry.
65286 */
65287 +#ifdef CONFIG_X86
65288 +union thread_union init_thread_union __init_task_data;
65289 +#else
65290 union thread_union init_thread_union __init_task_data =
65291 { INIT_THREAD_INFO(init_task) };
65292 +#endif
65293 diff --git a/init/initramfs.c b/init/initramfs.c
65294 index 84c6bf1..8899338 100644
65295 --- a/init/initramfs.c
65296 +++ b/init/initramfs.c
65297 @@ -84,7 +84,7 @@ static void __init free_hash(void)
65298 }
65299 }
65300
65301 -static long __init do_utime(char *filename, time_t mtime)
65302 +static long __init do_utime(char __force_user *filename, time_t mtime)
65303 {
65304 struct timespec t[2];
65305
65306 @@ -119,7 +119,7 @@ static void __init dir_utime(void)
65307 struct dir_entry *de, *tmp;
65308 list_for_each_entry_safe(de, tmp, &dir_list, list) {
65309 list_del(&de->list);
65310 - do_utime(de->name, de->mtime);
65311 + do_utime((char __force_user *)de->name, de->mtime);
65312 kfree(de->name);
65313 kfree(de);
65314 }
65315 @@ -281,7 +281,7 @@ static int __init maybe_link(void)
65316 if (nlink >= 2) {
65317 char *old = find_link(major, minor, ino, mode, collected);
65318 if (old)
65319 - return (sys_link(old, collected) < 0) ? -1 : 1;
65320 + return (sys_link((char __force_user *)old, (char __force_user *)collected) < 0) ? -1 : 1;
65321 }
65322 return 0;
65323 }
65324 @@ -290,11 +290,11 @@ static void __init clean_path(char *path, umode_t mode)
65325 {
65326 struct stat st;
65327
65328 - if (!sys_newlstat(path, &st) && (st.st_mode^mode) & S_IFMT) {
65329 + if (!sys_newlstat((char __force_user *)path, (struct stat __force_user *)&st) && (st.st_mode^mode) & S_IFMT) {
65330 if (S_ISDIR(st.st_mode))
65331 - sys_rmdir(path);
65332 + sys_rmdir((char __force_user *)path);
65333 else
65334 - sys_unlink(path);
65335 + sys_unlink((char __force_user *)path);
65336 }
65337 }
65338
65339 @@ -315,7 +315,7 @@ static int __init do_name(void)
65340 int openflags = O_WRONLY|O_CREAT;
65341 if (ml != 1)
65342 openflags |= O_TRUNC;
65343 - wfd = sys_open(collected, openflags, mode);
65344 + wfd = sys_open((char __force_user *)collected, openflags, mode);
65345
65346 if (wfd >= 0) {
65347 sys_fchown(wfd, uid, gid);
65348 @@ -327,17 +327,17 @@ static int __init do_name(void)
65349 }
65350 }
65351 } else if (S_ISDIR(mode)) {
65352 - sys_mkdir(collected, mode);
65353 - sys_chown(collected, uid, gid);
65354 - sys_chmod(collected, mode);
65355 + sys_mkdir((char __force_user *)collected, mode);
65356 + sys_chown((char __force_user *)collected, uid, gid);
65357 + sys_chmod((char __force_user *)collected, mode);
65358 dir_add(collected, mtime);
65359 } else if (S_ISBLK(mode) || S_ISCHR(mode) ||
65360 S_ISFIFO(mode) || S_ISSOCK(mode)) {
65361 if (maybe_link() == 0) {
65362 - sys_mknod(collected, mode, rdev);
65363 - sys_chown(collected, uid, gid);
65364 - sys_chmod(collected, mode);
65365 - do_utime(collected, mtime);
65366 + sys_mknod((char __force_user *)collected, mode, rdev);
65367 + sys_chown((char __force_user *)collected, uid, gid);
65368 + sys_chmod((char __force_user *)collected, mode);
65369 + do_utime((char __force_user *)collected, mtime);
65370 }
65371 }
65372 return 0;
65373 @@ -346,15 +346,15 @@ static int __init do_name(void)
65374 static int __init do_copy(void)
65375 {
65376 if (count >= body_len) {
65377 - sys_write(wfd, victim, body_len);
65378 + sys_write(wfd, (char __force_user *)victim, body_len);
65379 sys_close(wfd);
65380 - do_utime(vcollected, mtime);
65381 + do_utime((char __force_user *)vcollected, mtime);
65382 kfree(vcollected);
65383 eat(body_len);
65384 state = SkipIt;
65385 return 0;
65386 } else {
65387 - sys_write(wfd, victim, count);
65388 + sys_write(wfd, (char __force_user *)victim, count);
65389 body_len -= count;
65390 eat(count);
65391 return 1;
65392 @@ -365,9 +365,9 @@ static int __init do_symlink(void)
65393 {
65394 collected[N_ALIGN(name_len) + body_len] = '\0';
65395 clean_path(collected, 0);
65396 - sys_symlink(collected + N_ALIGN(name_len), collected);
65397 - sys_lchown(collected, uid, gid);
65398 - do_utime(collected, mtime);
65399 + sys_symlink((char __force_user *)collected + N_ALIGN(name_len), (char __force_user *)collected);
65400 + sys_lchown((char __force_user *)collected, uid, gid);
65401 + do_utime((char __force_user *)collected, mtime);
65402 state = SkipIt;
65403 next_state = Reset;
65404 return 0;
65405 diff --git a/init/main.c b/init/main.c
65406 index b5cc0a7..5605c91 100644
65407 --- a/init/main.c
65408 +++ b/init/main.c
65409 @@ -95,6 +95,8 @@ static inline void mark_rodata_ro(void) { }
65410 extern void tc_init(void);
65411 #endif
65412
65413 +extern void grsecurity_init(void);
65414 +
65415 /*
65416 * Debug helper: via this flag we know that we are in 'early bootup code'
65417 * where only the boot processor is running with IRQ disabled. This means
65418 @@ -148,6 +150,49 @@ static int __init set_reset_devices(char *str)
65419
65420 __setup("reset_devices", set_reset_devices);
65421
65422 +#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
65423 +extern char pax_enter_kernel_user[];
65424 +extern char pax_exit_kernel_user[];
65425 +extern pgdval_t clone_pgd_mask;
65426 +#endif
65427 +
65428 +#if defined(CONFIG_X86) && defined(CONFIG_PAX_MEMORY_UDEREF)
65429 +static int __init setup_pax_nouderef(char *str)
65430 +{
65431 +#ifdef CONFIG_X86_32
65432 + unsigned int cpu;
65433 + struct desc_struct *gdt;
65434 +
65435 + for (cpu = 0; cpu < nr_cpu_ids; cpu++) {
65436 + gdt = get_cpu_gdt_table(cpu);
65437 + gdt[GDT_ENTRY_KERNEL_DS].type = 3;
65438 + gdt[GDT_ENTRY_KERNEL_DS].limit = 0xf;
65439 + gdt[GDT_ENTRY_DEFAULT_USER_CS].limit = 0xf;
65440 + gdt[GDT_ENTRY_DEFAULT_USER_DS].limit = 0xf;
65441 + }
65442 + asm("mov %0, %%ds; mov %0, %%es; mov %0, %%ss" : : "r" (__KERNEL_DS) : "memory");
65443 +#else
65444 + memcpy(pax_enter_kernel_user, (unsigned char []){0xc3}, 1);
65445 + memcpy(pax_exit_kernel_user, (unsigned char []){0xc3}, 1);
65446 + clone_pgd_mask = ~(pgdval_t)0UL;
65447 +#endif
65448 +
65449 + return 0;
65450 +}
65451 +early_param("pax_nouderef", setup_pax_nouderef);
65452 +#endif
65453 +
65454 +#ifdef CONFIG_PAX_SOFTMODE
65455 +int pax_softmode;
65456 +
65457 +static int __init setup_pax_softmode(char *str)
65458 +{
65459 + get_option(&str, &pax_softmode);
65460 + return 1;
65461 +}
65462 +__setup("pax_softmode=", setup_pax_softmode);
65463 +#endif
65464 +
65465 static const char * argv_init[MAX_INIT_ARGS+2] = { "init", NULL, };
65466 const char * envp_init[MAX_INIT_ENVS+2] = { "HOME=/", "TERM=linux", NULL, };
65467 static const char *panic_later, *panic_param;
65468 @@ -674,6 +719,7 @@ int __init_or_module do_one_initcall(initcall_t fn)
65469 {
65470 int count = preempt_count();
65471 int ret;
65472 + const char *msg1 = "", *msg2 = "";
65473
65474 if (initcall_debug)
65475 ret = do_one_initcall_debug(fn);
65476 @@ -686,15 +732,15 @@ int __init_or_module do_one_initcall(initcall_t fn)
65477 sprintf(msgbuf, "error code %d ", ret);
65478
65479 if (preempt_count() != count) {
65480 - strlcat(msgbuf, "preemption imbalance ", sizeof(msgbuf));
65481 + msg1 = " preemption imbalance";
65482 preempt_count() = count;
65483 }
65484 if (irqs_disabled()) {
65485 - strlcat(msgbuf, "disabled interrupts ", sizeof(msgbuf));
65486 + msg2 = " disabled interrupts";
65487 local_irq_enable();
65488 }
65489 - if (msgbuf[0]) {
65490 - printk("initcall %pF returned with %s\n", fn, msgbuf);
65491 + if (msgbuf[0] || *msg1 || *msg2) {
65492 + printk("initcall %pF returned with %s%s%s\n", fn, msgbuf, msg1, msg2);
65493 }
65494
65495 return ret;
65496 @@ -747,8 +793,14 @@ static void __init do_initcall_level(int level)
65497 level, level,
65498 &repair_env_string);
65499
65500 - for (fn = initcall_levels[level]; fn < initcall_levels[level+1]; fn++)
65501 + for (fn = initcall_levels[level]; fn < initcall_levels[level+1]; fn++) {
65502 do_one_initcall(*fn);
65503 +
65504 +#ifdef CONFIG_PAX_LATENT_ENTROPY
65505 + transfer_latent_entropy();
65506 +#endif
65507 +
65508 + }
65509 }
65510
65511 static void __init do_initcalls(void)
65512 @@ -782,8 +834,14 @@ static void __init do_pre_smp_initcalls(void)
65513 {
65514 initcall_t *fn;
65515
65516 - for (fn = __initcall_start; fn < __initcall0_start; fn++)
65517 + for (fn = __initcall_start; fn < __initcall0_start; fn++) {
65518 do_one_initcall(*fn);
65519 +
65520 +#ifdef CONFIG_PAX_LATENT_ENTROPY
65521 + transfer_latent_entropy();
65522 +#endif
65523 +
65524 + }
65525 }
65526
65527 static void run_init_process(const char *init_filename)
65528 @@ -865,7 +923,7 @@ static int __init kernel_init(void * unused)
65529 do_basic_setup();
65530
65531 /* Open the /dev/console on the rootfs, this should never fail */
65532 - if (sys_open((const char __user *) "/dev/console", O_RDWR, 0) < 0)
65533 + if (sys_open((const char __force_user *) "/dev/console", O_RDWR, 0) < 0)
65534 printk(KERN_WARNING "Warning: unable to open an initial console.\n");
65535
65536 (void) sys_dup(0);
65537 @@ -878,11 +936,13 @@ static int __init kernel_init(void * unused)
65538 if (!ramdisk_execute_command)
65539 ramdisk_execute_command = "/init";
65540
65541 - if (sys_access((const char __user *) ramdisk_execute_command, 0) != 0) {
65542 + if (sys_access((const char __force_user *) ramdisk_execute_command, 0) != 0) {
65543 ramdisk_execute_command = NULL;
65544 prepare_namespace();
65545 }
65546
65547 + grsecurity_init();
65548 +
65549 /*
65550 * Ok, we have completed the initial bootup, and
65551 * we're essentially up and running. Get rid of the
65552 diff --git a/ipc/mqueue.c b/ipc/mqueue.c
65553 index 8ce5769..4666884 100644
65554 --- a/ipc/mqueue.c
65555 +++ b/ipc/mqueue.c
65556 @@ -279,6 +279,7 @@ static struct inode *mqueue_get_inode(struct super_block *sb,
65557 mq_bytes = mq_treesize + (info->attr.mq_maxmsg *
65558 info->attr.mq_msgsize);
65559
65560 + gr_learn_resource(current, RLIMIT_MSGQUEUE, u->mq_bytes + mq_bytes, 1);
65561 spin_lock(&mq_lock);
65562 if (u->mq_bytes + mq_bytes < u->mq_bytes ||
65563 u->mq_bytes + mq_bytes > rlimit(RLIMIT_MSGQUEUE)) {
65564 diff --git a/ipc/msg.c b/ipc/msg.c
65565 index 7385de2..a8180e08 100644
65566 --- a/ipc/msg.c
65567 +++ b/ipc/msg.c
65568 @@ -309,18 +309,19 @@ static inline int msg_security(struct kern_ipc_perm *ipcp, int msgflg)
65569 return security_msg_queue_associate(msq, msgflg);
65570 }
65571
65572 +static struct ipc_ops msg_ops = {
65573 + .getnew = newque,
65574 + .associate = msg_security,
65575 + .more_checks = NULL
65576 +};
65577 +
65578 SYSCALL_DEFINE2(msgget, key_t, key, int, msgflg)
65579 {
65580 struct ipc_namespace *ns;
65581 - struct ipc_ops msg_ops;
65582 struct ipc_params msg_params;
65583
65584 ns = current->nsproxy->ipc_ns;
65585
65586 - msg_ops.getnew = newque;
65587 - msg_ops.associate = msg_security;
65588 - msg_ops.more_checks = NULL;
65589 -
65590 msg_params.key = key;
65591 msg_params.flg = msgflg;
65592
65593 diff --git a/ipc/sem.c b/ipc/sem.c
65594 index 5215a81..cfc0cac 100644
65595 --- a/ipc/sem.c
65596 +++ b/ipc/sem.c
65597 @@ -364,10 +364,15 @@ static inline int sem_more_checks(struct kern_ipc_perm *ipcp,
65598 return 0;
65599 }
65600
65601 +static struct ipc_ops sem_ops = {
65602 + .getnew = newary,
65603 + .associate = sem_security,
65604 + .more_checks = sem_more_checks
65605 +};
65606 +
65607 SYSCALL_DEFINE3(semget, key_t, key, int, nsems, int, semflg)
65608 {
65609 struct ipc_namespace *ns;
65610 - struct ipc_ops sem_ops;
65611 struct ipc_params sem_params;
65612
65613 ns = current->nsproxy->ipc_ns;
65614 @@ -375,10 +380,6 @@ SYSCALL_DEFINE3(semget, key_t, key, int, nsems, int, semflg)
65615 if (nsems < 0 || nsems > ns->sc_semmsl)
65616 return -EINVAL;
65617
65618 - sem_ops.getnew = newary;
65619 - sem_ops.associate = sem_security;
65620 - sem_ops.more_checks = sem_more_checks;
65621 -
65622 sem_params.key = key;
65623 sem_params.flg = semflg;
65624 sem_params.u.nsems = nsems;
65625 diff --git a/ipc/shm.c b/ipc/shm.c
65626 index 41c1285..cf6404c 100644
65627 --- a/ipc/shm.c
65628 +++ b/ipc/shm.c
65629 @@ -69,6 +69,14 @@ static void shm_destroy (struct ipc_namespace *ns, struct shmid_kernel *shp);
65630 static int sysvipc_shm_proc_show(struct seq_file *s, void *it);
65631 #endif
65632
65633 +#ifdef CONFIG_GRKERNSEC
65634 +extern int gr_handle_shmat(const pid_t shm_cprid, const pid_t shm_lapid,
65635 + const time_t shm_createtime, const uid_t cuid,
65636 + const int shmid);
65637 +extern int gr_chroot_shmat(const pid_t shm_cprid, const pid_t shm_lapid,
65638 + const time_t shm_createtime);
65639 +#endif
65640 +
65641 void shm_init_ns(struct ipc_namespace *ns)
65642 {
65643 ns->shm_ctlmax = SHMMAX;
65644 @@ -520,6 +528,14 @@ static int newseg(struct ipc_namespace *ns, struct ipc_params *params)
65645 shp->shm_lprid = 0;
65646 shp->shm_atim = shp->shm_dtim = 0;
65647 shp->shm_ctim = get_seconds();
65648 +#ifdef CONFIG_GRKERNSEC
65649 + {
65650 + struct timespec timeval;
65651 + do_posix_clock_monotonic_gettime(&timeval);
65652 +
65653 + shp->shm_createtime = timeval.tv_sec;
65654 + }
65655 +#endif
65656 shp->shm_segsz = size;
65657 shp->shm_nattch = 0;
65658 shp->shm_file = file;
65659 @@ -571,18 +587,19 @@ static inline int shm_more_checks(struct kern_ipc_perm *ipcp,
65660 return 0;
65661 }
65662
65663 +static struct ipc_ops shm_ops = {
65664 + .getnew = newseg,
65665 + .associate = shm_security,
65666 + .more_checks = shm_more_checks
65667 +};
65668 +
65669 SYSCALL_DEFINE3(shmget, key_t, key, size_t, size, int, shmflg)
65670 {
65671 struct ipc_namespace *ns;
65672 - struct ipc_ops shm_ops;
65673 struct ipc_params shm_params;
65674
65675 ns = current->nsproxy->ipc_ns;
65676
65677 - shm_ops.getnew = newseg;
65678 - shm_ops.associate = shm_security;
65679 - shm_ops.more_checks = shm_more_checks;
65680 -
65681 shm_params.key = key;
65682 shm_params.flg = shmflg;
65683 shm_params.u.size = size;
65684 @@ -1000,6 +1017,12 @@ long do_shmat(int shmid, char __user *shmaddr, int shmflg, ulong *raddr)
65685 f_mode = FMODE_READ | FMODE_WRITE;
65686 }
65687 if (shmflg & SHM_EXEC) {
65688 +
65689 +#ifdef CONFIG_PAX_MPROTECT
65690 + if (current->mm->pax_flags & MF_PAX_MPROTECT)
65691 + goto out;
65692 +#endif
65693 +
65694 prot |= PROT_EXEC;
65695 acc_mode |= S_IXUGO;
65696 }
65697 @@ -1023,9 +1046,21 @@ long do_shmat(int shmid, char __user *shmaddr, int shmflg, ulong *raddr)
65698 if (err)
65699 goto out_unlock;
65700
65701 +#ifdef CONFIG_GRKERNSEC
65702 + if (!gr_handle_shmat(shp->shm_cprid, shp->shm_lapid, shp->shm_createtime,
65703 + shp->shm_perm.cuid, shmid) ||
65704 + !gr_chroot_shmat(shp->shm_cprid, shp->shm_lapid, shp->shm_createtime)) {
65705 + err = -EACCES;
65706 + goto out_unlock;
65707 + }
65708 +#endif
65709 +
65710 path = shp->shm_file->f_path;
65711 path_get(&path);
65712 shp->shm_nattch++;
65713 +#ifdef CONFIG_GRKERNSEC
65714 + shp->shm_lapid = current->pid;
65715 +#endif
65716 size = i_size_read(path.dentry->d_inode);
65717 shm_unlock(shp);
65718
65719 diff --git a/kernel/acct.c b/kernel/acct.c
65720 index 02e6167..54824f7 100644
65721 --- a/kernel/acct.c
65722 +++ b/kernel/acct.c
65723 @@ -550,7 +550,7 @@ static void do_acct_process(struct bsd_acct_struct *acct,
65724 */
65725 flim = current->signal->rlim[RLIMIT_FSIZE].rlim_cur;
65726 current->signal->rlim[RLIMIT_FSIZE].rlim_cur = RLIM_INFINITY;
65727 - file->f_op->write(file, (char *)&ac,
65728 + file->f_op->write(file, (char __force_user *)&ac,
65729 sizeof(acct_t), &file->f_pos);
65730 current->signal->rlim[RLIMIT_FSIZE].rlim_cur = flim;
65731 set_fs(fs);
65732 diff --git a/kernel/audit.c b/kernel/audit.c
65733 index 1c7f2c6..9ba5359 100644
65734 --- a/kernel/audit.c
65735 +++ b/kernel/audit.c
65736 @@ -115,7 +115,7 @@ u32 audit_sig_sid = 0;
65737 3) suppressed due to audit_rate_limit
65738 4) suppressed due to audit_backlog_limit
65739 */
65740 -static atomic_t audit_lost = ATOMIC_INIT(0);
65741 +static atomic_unchecked_t audit_lost = ATOMIC_INIT(0);
65742
65743 /* The netlink socket. */
65744 static struct sock *audit_sock;
65745 @@ -237,7 +237,7 @@ void audit_log_lost(const char *message)
65746 unsigned long now;
65747 int print;
65748
65749 - atomic_inc(&audit_lost);
65750 + atomic_inc_unchecked(&audit_lost);
65751
65752 print = (audit_failure == AUDIT_FAIL_PANIC || !audit_rate_limit);
65753
65754 @@ -256,7 +256,7 @@ void audit_log_lost(const char *message)
65755 printk(KERN_WARNING
65756 "audit: audit_lost=%d audit_rate_limit=%d "
65757 "audit_backlog_limit=%d\n",
65758 - atomic_read(&audit_lost),
65759 + atomic_read_unchecked(&audit_lost),
65760 audit_rate_limit,
65761 audit_backlog_limit);
65762 audit_panic(message);
65763 @@ -689,7 +689,7 @@ static int audit_receive_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
65764 status_set.pid = audit_pid;
65765 status_set.rate_limit = audit_rate_limit;
65766 status_set.backlog_limit = audit_backlog_limit;
65767 - status_set.lost = atomic_read(&audit_lost);
65768 + status_set.lost = atomic_read_unchecked(&audit_lost);
65769 status_set.backlog = skb_queue_len(&audit_skb_queue);
65770 audit_send_reply(NETLINK_CB(skb).pid, seq, AUDIT_GET, 0, 0,
65771 &status_set, sizeof(status_set));
65772 diff --git a/kernel/auditsc.c b/kernel/auditsc.c
65773 index 4b96415..d8c16ee 100644
65774 --- a/kernel/auditsc.c
65775 +++ b/kernel/auditsc.c
65776 @@ -2289,7 +2289,7 @@ int auditsc_get_stamp(struct audit_context *ctx,
65777 }
65778
65779 /* global counter which is incremented every time something logs in */
65780 -static atomic_t session_id = ATOMIC_INIT(0);
65781 +static atomic_unchecked_t session_id = ATOMIC_INIT(0);
65782
65783 /**
65784 * audit_set_loginuid - set current task's audit_context loginuid
65785 @@ -2313,7 +2313,7 @@ int audit_set_loginuid(uid_t loginuid)
65786 return -EPERM;
65787 #endif /* CONFIG_AUDIT_LOGINUID_IMMUTABLE */
65788
65789 - sessionid = atomic_inc_return(&session_id);
65790 + sessionid = atomic_inc_return_unchecked(&session_id);
65791 if (context && context->in_syscall) {
65792 struct audit_buffer *ab;
65793
65794 diff --git a/kernel/capability.c b/kernel/capability.c
65795 index 493d972..ea17248 100644
65796 --- a/kernel/capability.c
65797 +++ b/kernel/capability.c
65798 @@ -202,6 +202,9 @@ SYSCALL_DEFINE2(capget, cap_user_header_t, header, cap_user_data_t, dataptr)
65799 * before modification is attempted and the application
65800 * fails.
65801 */
65802 + if (tocopy > ARRAY_SIZE(kdata))
65803 + return -EFAULT;
65804 +
65805 if (copy_to_user(dataptr, kdata, tocopy
65806 * sizeof(struct __user_cap_data_struct))) {
65807 return -EFAULT;
65808 @@ -303,10 +306,11 @@ bool has_ns_capability(struct task_struct *t,
65809 int ret;
65810
65811 rcu_read_lock();
65812 - ret = security_capable(__task_cred(t), ns, cap);
65813 + ret = security_capable(__task_cred(t), ns, cap) == 0 &&
65814 + gr_task_is_capable(t, __task_cred(t), cap);
65815 rcu_read_unlock();
65816
65817 - return (ret == 0);
65818 + return ret;
65819 }
65820
65821 /**
65822 @@ -343,10 +347,10 @@ bool has_ns_capability_noaudit(struct task_struct *t,
65823 int ret;
65824
65825 rcu_read_lock();
65826 - ret = security_capable_noaudit(__task_cred(t), ns, cap);
65827 + ret = security_capable_noaudit(__task_cred(t), ns, cap) == 0 && gr_task_is_capable_nolog(t, cap);
65828 rcu_read_unlock();
65829
65830 - return (ret == 0);
65831 + return ret;
65832 }
65833
65834 /**
65835 @@ -384,7 +388,7 @@ bool ns_capable(struct user_namespace *ns, int cap)
65836 BUG();
65837 }
65838
65839 - if (security_capable(current_cred(), ns, cap) == 0) {
65840 + if (security_capable(current_cred(), ns, cap) == 0 && gr_is_capable(cap)) {
65841 current->flags |= PF_SUPERPRIV;
65842 return true;
65843 }
65844 @@ -392,6 +396,21 @@ bool ns_capable(struct user_namespace *ns, int cap)
65845 }
65846 EXPORT_SYMBOL(ns_capable);
65847
65848 +bool ns_capable_nolog(struct user_namespace *ns, int cap)
65849 +{
65850 + if (unlikely(!cap_valid(cap))) {
65851 + printk(KERN_CRIT "capable() called with invalid cap=%u\n", cap);
65852 + BUG();
65853 + }
65854 +
65855 + if (security_capable(current_cred(), ns, cap) == 0 && gr_is_capable_nolog(cap)) {
65856 + current->flags |= PF_SUPERPRIV;
65857 + return true;
65858 + }
65859 + return false;
65860 +}
65861 +EXPORT_SYMBOL(ns_capable_nolog);
65862 +
65863 /**
65864 * capable - Determine if the current task has a superior capability in effect
65865 * @cap: The capability to be tested for
65866 @@ -408,6 +427,12 @@ bool capable(int cap)
65867 }
65868 EXPORT_SYMBOL(capable);
65869
65870 +bool capable_nolog(int cap)
65871 +{
65872 + return ns_capable_nolog(&init_user_ns, cap);
65873 +}
65874 +EXPORT_SYMBOL(capable_nolog);
65875 +
65876 /**
65877 * nsown_capable - Check superior capability to one's own user_ns
65878 * @cap: The capability in question
65879 @@ -440,3 +465,10 @@ bool inode_capable(const struct inode *inode, int cap)
65880
65881 return ns_capable(ns, cap) && kuid_has_mapping(ns, inode->i_uid);
65882 }
65883 +
65884 +bool inode_capable_nolog(const struct inode *inode, int cap)
65885 +{
65886 + struct user_namespace *ns = current_user_ns();
65887 +
65888 + return ns_capable_nolog(ns, cap) && kuid_has_mapping(ns, inode->i_uid);
65889 +}
65890 diff --git a/kernel/compat.c b/kernel/compat.c
65891 index c28a306..b4d0cf3 100644
65892 --- a/kernel/compat.c
65893 +++ b/kernel/compat.c
65894 @@ -13,6 +13,7 @@
65895
65896 #include <linux/linkage.h>
65897 #include <linux/compat.h>
65898 +#include <linux/module.h>
65899 #include <linux/errno.h>
65900 #include <linux/time.h>
65901 #include <linux/signal.h>
65902 @@ -220,7 +221,7 @@ static long compat_nanosleep_restart(struct restart_block *restart)
65903 mm_segment_t oldfs;
65904 long ret;
65905
65906 - restart->nanosleep.rmtp = (struct timespec __user *) &rmt;
65907 + restart->nanosleep.rmtp = (struct timespec __force_user *) &rmt;
65908 oldfs = get_fs();
65909 set_fs(KERNEL_DS);
65910 ret = hrtimer_nanosleep_restart(restart);
65911 @@ -252,7 +253,7 @@ asmlinkage long compat_sys_nanosleep(struct compat_timespec __user *rqtp,
65912 oldfs = get_fs();
65913 set_fs(KERNEL_DS);
65914 ret = hrtimer_nanosleep(&tu,
65915 - rmtp ? (struct timespec __user *)&rmt : NULL,
65916 + rmtp ? (struct timespec __force_user *)&rmt : NULL,
65917 HRTIMER_MODE_REL, CLOCK_MONOTONIC);
65918 set_fs(oldfs);
65919
65920 @@ -361,7 +362,7 @@ asmlinkage long compat_sys_sigpending(compat_old_sigset_t __user *set)
65921 mm_segment_t old_fs = get_fs();
65922
65923 set_fs(KERNEL_DS);
65924 - ret = sys_sigpending((old_sigset_t __user *) &s);
65925 + ret = sys_sigpending((old_sigset_t __force_user *) &s);
65926 set_fs(old_fs);
65927 if (ret == 0)
65928 ret = put_user(s, set);
65929 @@ -451,7 +452,7 @@ asmlinkage long compat_sys_old_getrlimit(unsigned int resource,
65930 mm_segment_t old_fs = get_fs();
65931
65932 set_fs(KERNEL_DS);
65933 - ret = sys_old_getrlimit(resource, &r);
65934 + ret = sys_old_getrlimit(resource, (struct rlimit __force_user *)&r);
65935 set_fs(old_fs);
65936
65937 if (!ret) {
65938 @@ -523,7 +524,7 @@ asmlinkage long compat_sys_getrusage(int who, struct compat_rusage __user *ru)
65939 mm_segment_t old_fs = get_fs();
65940
65941 set_fs(KERNEL_DS);
65942 - ret = sys_getrusage(who, (struct rusage __user *) &r);
65943 + ret = sys_getrusage(who, (struct rusage __force_user *) &r);
65944 set_fs(old_fs);
65945
65946 if (ret)
65947 @@ -550,8 +551,8 @@ compat_sys_wait4(compat_pid_t pid, compat_uint_t __user *stat_addr, int options,
65948 set_fs (KERNEL_DS);
65949 ret = sys_wait4(pid,
65950 (stat_addr ?
65951 - (unsigned int __user *) &status : NULL),
65952 - options, (struct rusage __user *) &r);
65953 + (unsigned int __force_user *) &status : NULL),
65954 + options, (struct rusage __force_user *) &r);
65955 set_fs (old_fs);
65956
65957 if (ret > 0) {
65958 @@ -576,8 +577,8 @@ asmlinkage long compat_sys_waitid(int which, compat_pid_t pid,
65959 memset(&info, 0, sizeof(info));
65960
65961 set_fs(KERNEL_DS);
65962 - ret = sys_waitid(which, pid, (siginfo_t __user *)&info, options,
65963 - uru ? (struct rusage __user *)&ru : NULL);
65964 + ret = sys_waitid(which, pid, (siginfo_t __force_user *)&info, options,
65965 + uru ? (struct rusage __force_user *)&ru : NULL);
65966 set_fs(old_fs);
65967
65968 if ((ret < 0) || (info.si_signo == 0))
65969 @@ -707,8 +708,8 @@ long compat_sys_timer_settime(timer_t timer_id, int flags,
65970 oldfs = get_fs();
65971 set_fs(KERNEL_DS);
65972 err = sys_timer_settime(timer_id, flags,
65973 - (struct itimerspec __user *) &newts,
65974 - (struct itimerspec __user *) &oldts);
65975 + (struct itimerspec __force_user *) &newts,
65976 + (struct itimerspec __force_user *) &oldts);
65977 set_fs(oldfs);
65978 if (!err && old && put_compat_itimerspec(old, &oldts))
65979 return -EFAULT;
65980 @@ -725,7 +726,7 @@ long compat_sys_timer_gettime(timer_t timer_id,
65981 oldfs = get_fs();
65982 set_fs(KERNEL_DS);
65983 err = sys_timer_gettime(timer_id,
65984 - (struct itimerspec __user *) &ts);
65985 + (struct itimerspec __force_user *) &ts);
65986 set_fs(oldfs);
65987 if (!err && put_compat_itimerspec(setting, &ts))
65988 return -EFAULT;
65989 @@ -744,7 +745,7 @@ long compat_sys_clock_settime(clockid_t which_clock,
65990 oldfs = get_fs();
65991 set_fs(KERNEL_DS);
65992 err = sys_clock_settime(which_clock,
65993 - (struct timespec __user *) &ts);
65994 + (struct timespec __force_user *) &ts);
65995 set_fs(oldfs);
65996 return err;
65997 }
65998 @@ -759,7 +760,7 @@ long compat_sys_clock_gettime(clockid_t which_clock,
65999 oldfs = get_fs();
66000 set_fs(KERNEL_DS);
66001 err = sys_clock_gettime(which_clock,
66002 - (struct timespec __user *) &ts);
66003 + (struct timespec __force_user *) &ts);
66004 set_fs(oldfs);
66005 if (!err && put_compat_timespec(&ts, tp))
66006 return -EFAULT;
66007 @@ -779,7 +780,7 @@ long compat_sys_clock_adjtime(clockid_t which_clock,
66008
66009 oldfs = get_fs();
66010 set_fs(KERNEL_DS);
66011 - ret = sys_clock_adjtime(which_clock, (struct timex __user *) &txc);
66012 + ret = sys_clock_adjtime(which_clock, (struct timex __force_user *) &txc);
66013 set_fs(oldfs);
66014
66015 err = compat_put_timex(utp, &txc);
66016 @@ -799,7 +800,7 @@ long compat_sys_clock_getres(clockid_t which_clock,
66017 oldfs = get_fs();
66018 set_fs(KERNEL_DS);
66019 err = sys_clock_getres(which_clock,
66020 - (struct timespec __user *) &ts);
66021 + (struct timespec __force_user *) &ts);
66022 set_fs(oldfs);
66023 if (!err && tp && put_compat_timespec(&ts, tp))
66024 return -EFAULT;
66025 @@ -811,9 +812,9 @@ static long compat_clock_nanosleep_restart(struct restart_block *restart)
66026 long err;
66027 mm_segment_t oldfs;
66028 struct timespec tu;
66029 - struct compat_timespec *rmtp = restart->nanosleep.compat_rmtp;
66030 + struct compat_timespec __user *rmtp = restart->nanosleep.compat_rmtp;
66031
66032 - restart->nanosleep.rmtp = (struct timespec __user *) &tu;
66033 + restart->nanosleep.rmtp = (struct timespec __force_user *) &tu;
66034 oldfs = get_fs();
66035 set_fs(KERNEL_DS);
66036 err = clock_nanosleep_restart(restart);
66037 @@ -845,8 +846,8 @@ long compat_sys_clock_nanosleep(clockid_t which_clock, int flags,
66038 oldfs = get_fs();
66039 set_fs(KERNEL_DS);
66040 err = sys_clock_nanosleep(which_clock, flags,
66041 - (struct timespec __user *) &in,
66042 - (struct timespec __user *) &out);
66043 + (struct timespec __force_user *) &in,
66044 + (struct timespec __force_user *) &out);
66045 set_fs(oldfs);
66046
66047 if ((err == -ERESTART_RESTARTBLOCK) && rmtp &&
66048 diff --git a/kernel/configs.c b/kernel/configs.c
66049 index 42e8fa0..9e7406b 100644
66050 --- a/kernel/configs.c
66051 +++ b/kernel/configs.c
66052 @@ -74,8 +74,19 @@ static int __init ikconfig_init(void)
66053 struct proc_dir_entry *entry;
66054
66055 /* create the current config file */
66056 +#if defined(CONFIG_GRKERNSEC_PROC_ADD) || defined(CONFIG_GRKERNSEC_HIDESYM)
66057 +#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_HIDESYM)
66058 + entry = proc_create("config.gz", S_IFREG | S_IRUSR, NULL,
66059 + &ikconfig_file_ops);
66060 +#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
66061 + entry = proc_create("config.gz", S_IFREG | S_IRUSR | S_IRGRP, NULL,
66062 + &ikconfig_file_ops);
66063 +#endif
66064 +#else
66065 entry = proc_create("config.gz", S_IFREG | S_IRUGO, NULL,
66066 &ikconfig_file_ops);
66067 +#endif
66068 +
66069 if (!entry)
66070 return -ENOMEM;
66071
66072 diff --git a/kernel/cred.c b/kernel/cred.c
66073 index de728ac..e3c267c 100644
66074 --- a/kernel/cred.c
66075 +++ b/kernel/cred.c
66076 @@ -207,6 +207,16 @@ void exit_creds(struct task_struct *tsk)
66077 validate_creds(cred);
66078 alter_cred_subscribers(cred, -1);
66079 put_cred(cred);
66080 +
66081 +#ifdef CONFIG_GRKERNSEC_SETXID
66082 + cred = (struct cred *) tsk->delayed_cred;
66083 + if (cred != NULL) {
66084 + tsk->delayed_cred = NULL;
66085 + validate_creds(cred);
66086 + alter_cred_subscribers(cred, -1);
66087 + put_cred(cred);
66088 + }
66089 +#endif
66090 }
66091
66092 /**
66093 @@ -469,7 +479,7 @@ error_put:
66094 * Always returns 0 thus allowing this function to be tail-called at the end
66095 * of, say, sys_setgid().
66096 */
66097 -int commit_creds(struct cred *new)
66098 +static int __commit_creds(struct cred *new)
66099 {
66100 struct task_struct *task = current;
66101 const struct cred *old = task->real_cred;
66102 @@ -488,6 +498,8 @@ int commit_creds(struct cred *new)
66103
66104 get_cred(new); /* we will require a ref for the subj creds too */
66105
66106 + gr_set_role_label(task, new->uid, new->gid);
66107 +
66108 /* dumpability changes */
66109 if (!uid_eq(old->euid, new->euid) ||
66110 !gid_eq(old->egid, new->egid) ||
66111 @@ -537,6 +549,101 @@ int commit_creds(struct cred *new)
66112 put_cred(old);
66113 return 0;
66114 }
66115 +#ifdef CONFIG_GRKERNSEC_SETXID
66116 +extern int set_user(struct cred *new);
66117 +
66118 +void gr_delayed_cred_worker(void)
66119 +{
66120 + const struct cred *new = current->delayed_cred;
66121 + struct cred *ncred;
66122 +
66123 + current->delayed_cred = NULL;
66124 +
66125 + if (current_uid() && new != NULL) {
66126 + // from doing get_cred on it when queueing this
66127 + put_cred(new);
66128 + return;
66129 + } else if (new == NULL)
66130 + return;
66131 +
66132 + ncred = prepare_creds();
66133 + if (!ncred)
66134 + goto die;
66135 + // uids
66136 + ncred->uid = new->uid;
66137 + ncred->euid = new->euid;
66138 + ncred->suid = new->suid;
66139 + ncred->fsuid = new->fsuid;
66140 + // gids
66141 + ncred->gid = new->gid;
66142 + ncred->egid = new->egid;
66143 + ncred->sgid = new->sgid;
66144 + ncred->fsgid = new->fsgid;
66145 + // groups
66146 + if (set_groups(ncred, new->group_info) < 0) {
66147 + abort_creds(ncred);
66148 + goto die;
66149 + }
66150 + // caps
66151 + ncred->securebits = new->securebits;
66152 + ncred->cap_inheritable = new->cap_inheritable;
66153 + ncred->cap_permitted = new->cap_permitted;
66154 + ncred->cap_effective = new->cap_effective;
66155 + ncred->cap_bset = new->cap_bset;
66156 +
66157 + if (set_user(ncred)) {
66158 + abort_creds(ncred);
66159 + goto die;
66160 + }
66161 +
66162 + // from doing get_cred on it when queueing this
66163 + put_cred(new);
66164 +
66165 + __commit_creds(ncred);
66166 + return;
66167 +die:
66168 + // from doing get_cred on it when queueing this
66169 + put_cred(new);
66170 + do_group_exit(SIGKILL);
66171 +}
66172 +#endif
66173 +
66174 +int commit_creds(struct cred *new)
66175 +{
66176 +#ifdef CONFIG_GRKERNSEC_SETXID
66177 + int ret;
66178 + int schedule_it = 0;
66179 + struct task_struct *t;
66180 +
66181 + /* we won't get called with tasklist_lock held for writing
66182 + and interrupts disabled as the cred struct in that case is
66183 + init_cred
66184 + */
66185 + if (grsec_enable_setxid && !current_is_single_threaded() &&
66186 + !current_uid() && new->uid) {
66187 + schedule_it = 1;
66188 + }
66189 + ret = __commit_creds(new);
66190 + if (schedule_it) {
66191 + rcu_read_lock();
66192 + read_lock(&tasklist_lock);
66193 + for (t = next_thread(current); t != current;
66194 + t = next_thread(t)) {
66195 + if (t->delayed_cred == NULL) {
66196 + t->delayed_cred = get_cred(new);
66197 + set_tsk_thread_flag(t, TIF_GRSEC_SETXID);
66198 + set_tsk_need_resched(t);
66199 + }
66200 + }
66201 + read_unlock(&tasklist_lock);
66202 + rcu_read_unlock();
66203 + }
66204 + return ret;
66205 +#else
66206 + return __commit_creds(new);
66207 +#endif
66208 +}
66209 +
66210 EXPORT_SYMBOL(commit_creds);
66211
66212 /**
66213 diff --git a/kernel/debug/debug_core.c b/kernel/debug/debug_core.c
66214 index 0557f24..1a00d9a 100644
66215 --- a/kernel/debug/debug_core.c
66216 +++ b/kernel/debug/debug_core.c
66217 @@ -122,7 +122,7 @@ static DEFINE_RAW_SPINLOCK(dbg_slave_lock);
66218 */
66219 static atomic_t masters_in_kgdb;
66220 static atomic_t slaves_in_kgdb;
66221 -static atomic_t kgdb_break_tasklet_var;
66222 +static atomic_unchecked_t kgdb_break_tasklet_var;
66223 atomic_t kgdb_setting_breakpoint;
66224
66225 struct task_struct *kgdb_usethread;
66226 @@ -132,7 +132,7 @@ int kgdb_single_step;
66227 static pid_t kgdb_sstep_pid;
66228
66229 /* to keep track of the CPU which is doing the single stepping*/
66230 -atomic_t kgdb_cpu_doing_single_step = ATOMIC_INIT(-1);
66231 +atomic_unchecked_t kgdb_cpu_doing_single_step = ATOMIC_INIT(-1);
66232
66233 /*
66234 * If you are debugging a problem where roundup (the collection of
66235 @@ -540,7 +540,7 @@ return_normal:
66236 * kernel will only try for the value of sstep_tries before
66237 * giving up and continuing on.
66238 */
66239 - if (atomic_read(&kgdb_cpu_doing_single_step) != -1 &&
66240 + if (atomic_read_unchecked(&kgdb_cpu_doing_single_step) != -1 &&
66241 (kgdb_info[cpu].task &&
66242 kgdb_info[cpu].task->pid != kgdb_sstep_pid) && --sstep_tries) {
66243 atomic_set(&kgdb_active, -1);
66244 @@ -634,8 +634,8 @@ cpu_master_loop:
66245 }
66246
66247 kgdb_restore:
66248 - if (atomic_read(&kgdb_cpu_doing_single_step) != -1) {
66249 - int sstep_cpu = atomic_read(&kgdb_cpu_doing_single_step);
66250 + if (atomic_read_unchecked(&kgdb_cpu_doing_single_step) != -1) {
66251 + int sstep_cpu = atomic_read_unchecked(&kgdb_cpu_doing_single_step);
66252 if (kgdb_info[sstep_cpu].task)
66253 kgdb_sstep_pid = kgdb_info[sstep_cpu].task->pid;
66254 else
66255 @@ -861,18 +861,18 @@ static void kgdb_unregister_callbacks(void)
66256 static void kgdb_tasklet_bpt(unsigned long ing)
66257 {
66258 kgdb_breakpoint();
66259 - atomic_set(&kgdb_break_tasklet_var, 0);
66260 + atomic_set_unchecked(&kgdb_break_tasklet_var, 0);
66261 }
66262
66263 static DECLARE_TASKLET(kgdb_tasklet_breakpoint, kgdb_tasklet_bpt, 0);
66264
66265 void kgdb_schedule_breakpoint(void)
66266 {
66267 - if (atomic_read(&kgdb_break_tasklet_var) ||
66268 + if (atomic_read_unchecked(&kgdb_break_tasklet_var) ||
66269 atomic_read(&kgdb_active) != -1 ||
66270 atomic_read(&kgdb_setting_breakpoint))
66271 return;
66272 - atomic_inc(&kgdb_break_tasklet_var);
66273 + atomic_inc_unchecked(&kgdb_break_tasklet_var);
66274 tasklet_schedule(&kgdb_tasklet_breakpoint);
66275 }
66276 EXPORT_SYMBOL_GPL(kgdb_schedule_breakpoint);
66277 diff --git a/kernel/debug/kdb/kdb_main.c b/kernel/debug/kdb/kdb_main.c
66278 index 1f91413..362a0a1 100644
66279 --- a/kernel/debug/kdb/kdb_main.c
66280 +++ b/kernel/debug/kdb/kdb_main.c
66281 @@ -1984,7 +1984,7 @@ static int kdb_lsmod(int argc, const char **argv)
66282 list_for_each_entry(mod, kdb_modules, list) {
66283
66284 kdb_printf("%-20s%8u 0x%p ", mod->name,
66285 - mod->core_size, (void *)mod);
66286 + mod->core_size_rx + mod->core_size_rw, (void *)mod);
66287 #ifdef CONFIG_MODULE_UNLOAD
66288 kdb_printf("%4ld ", module_refcount(mod));
66289 #endif
66290 @@ -1994,7 +1994,7 @@ static int kdb_lsmod(int argc, const char **argv)
66291 kdb_printf(" (Loading)");
66292 else
66293 kdb_printf(" (Live)");
66294 - kdb_printf(" 0x%p", mod->module_core);
66295 + kdb_printf(" 0x%p 0x%p", mod->module_core_rx, mod->module_core_rw);
66296
66297 #ifdef CONFIG_MODULE_UNLOAD
66298 {
66299 diff --git a/kernel/events/core.c b/kernel/events/core.c
66300 index d7d71d6..f54b76f 100644
66301 --- a/kernel/events/core.c
66302 +++ b/kernel/events/core.c
66303 @@ -181,7 +181,7 @@ int perf_proc_update_handler(struct ctl_table *table, int write,
66304 return 0;
66305 }
66306
66307 -static atomic64_t perf_event_id;
66308 +static atomic64_unchecked_t perf_event_id;
66309
66310 static void cpu_ctx_sched_out(struct perf_cpu_context *cpuctx,
66311 enum event_type_t event_type);
66312 @@ -2663,7 +2663,7 @@ static void __perf_event_read(void *info)
66313
66314 static inline u64 perf_event_count(struct perf_event *event)
66315 {
66316 - return local64_read(&event->count) + atomic64_read(&event->child_count);
66317 + return local64_read(&event->count) + atomic64_read_unchecked(&event->child_count);
66318 }
66319
66320 static u64 perf_event_read(struct perf_event *event)
66321 @@ -2987,9 +2987,9 @@ u64 perf_event_read_value(struct perf_event *event, u64 *enabled, u64 *running)
66322 mutex_lock(&event->child_mutex);
66323 total += perf_event_read(event);
66324 *enabled += event->total_time_enabled +
66325 - atomic64_read(&event->child_total_time_enabled);
66326 + atomic64_read_unchecked(&event->child_total_time_enabled);
66327 *running += event->total_time_running +
66328 - atomic64_read(&event->child_total_time_running);
66329 + atomic64_read_unchecked(&event->child_total_time_running);
66330
66331 list_for_each_entry(child, &event->child_list, child_list) {
66332 total += perf_event_read(child);
66333 @@ -3396,10 +3396,10 @@ void perf_event_update_userpage(struct perf_event *event)
66334 userpg->offset -= local64_read(&event->hw.prev_count);
66335
66336 userpg->time_enabled = enabled +
66337 - atomic64_read(&event->child_total_time_enabled);
66338 + atomic64_read_unchecked(&event->child_total_time_enabled);
66339
66340 userpg->time_running = running +
66341 - atomic64_read(&event->child_total_time_running);
66342 + atomic64_read_unchecked(&event->child_total_time_running);
66343
66344 arch_perf_update_userpage(userpg, now);
66345
66346 @@ -3832,11 +3832,11 @@ static void perf_output_read_one(struct perf_output_handle *handle,
66347 values[n++] = perf_event_count(event);
66348 if (read_format & PERF_FORMAT_TOTAL_TIME_ENABLED) {
66349 values[n++] = enabled +
66350 - atomic64_read(&event->child_total_time_enabled);
66351 + atomic64_read_unchecked(&event->child_total_time_enabled);
66352 }
66353 if (read_format & PERF_FORMAT_TOTAL_TIME_RUNNING) {
66354 values[n++] = running +
66355 - atomic64_read(&event->child_total_time_running);
66356 + atomic64_read_unchecked(&event->child_total_time_running);
66357 }
66358 if (read_format & PERF_FORMAT_ID)
66359 values[n++] = primary_event_id(event);
66360 @@ -4514,12 +4514,12 @@ static void perf_event_mmap_event(struct perf_mmap_event *mmap_event)
66361 * need to add enough zero bytes after the string to handle
66362 * the 64bit alignment we do later.
66363 */
66364 - buf = kzalloc(PATH_MAX + sizeof(u64), GFP_KERNEL);
66365 + buf = kzalloc(PATH_MAX, GFP_KERNEL);
66366 if (!buf) {
66367 name = strncpy(tmp, "//enomem", sizeof(tmp));
66368 goto got_name;
66369 }
66370 - name = d_path(&file->f_path, buf, PATH_MAX);
66371 + name = d_path(&file->f_path, buf, PATH_MAX - sizeof(u64));
66372 if (IS_ERR(name)) {
66373 name = strncpy(tmp, "//toolong", sizeof(tmp));
66374 goto got_name;
66375 @@ -5931,7 +5931,7 @@ perf_event_alloc(struct perf_event_attr *attr, int cpu,
66376 event->parent = parent_event;
66377
66378 event->ns = get_pid_ns(current->nsproxy->pid_ns);
66379 - event->id = atomic64_inc_return(&perf_event_id);
66380 + event->id = atomic64_inc_return_unchecked(&perf_event_id);
66381
66382 event->state = PERF_EVENT_STATE_INACTIVE;
66383
66384 @@ -6493,10 +6493,10 @@ static void sync_child_event(struct perf_event *child_event,
66385 /*
66386 * Add back the child's count to the parent's count:
66387 */
66388 - atomic64_add(child_val, &parent_event->child_count);
66389 - atomic64_add(child_event->total_time_enabled,
66390 + atomic64_add_unchecked(child_val, &parent_event->child_count);
66391 + atomic64_add_unchecked(child_event->total_time_enabled,
66392 &parent_event->child_total_time_enabled);
66393 - atomic64_add(child_event->total_time_running,
66394 + atomic64_add_unchecked(child_event->total_time_running,
66395 &parent_event->child_total_time_running);
66396
66397 /*
66398 diff --git a/kernel/exit.c b/kernel/exit.c
66399 index 46ce8da..c648f3a 100644
66400 --- a/kernel/exit.c
66401 +++ b/kernel/exit.c
66402 @@ -59,6 +59,10 @@
66403 #include <asm/pgtable.h>
66404 #include <asm/mmu_context.h>
66405
66406 +#ifdef CONFIG_GRKERNSEC
66407 +extern rwlock_t grsec_exec_file_lock;
66408 +#endif
66409 +
66410 static void exit_mm(struct task_struct * tsk);
66411
66412 static void __unhash_process(struct task_struct *p, bool group_dead)
66413 @@ -182,6 +186,10 @@ void release_task(struct task_struct * p)
66414 struct task_struct *leader;
66415 int zap_leader;
66416 repeat:
66417 +#ifdef CONFIG_NET
66418 + gr_del_task_from_ip_table(p);
66419 +#endif
66420 +
66421 /* don't need to get the RCU readlock here - the process is dead and
66422 * can't be modifying its own credentials. But shut RCU-lockdep up */
66423 rcu_read_lock();
66424 @@ -394,7 +402,7 @@ int allow_signal(int sig)
66425 * know it'll be handled, so that they don't get converted to
66426 * SIGKILL or just silently dropped.
66427 */
66428 - current->sighand->action[(sig)-1].sa.sa_handler = (void __user *)2;
66429 + current->sighand->action[(sig)-1].sa.sa_handler = (__force void __user *)2;
66430 recalc_sigpending();
66431 spin_unlock_irq(&current->sighand->siglock);
66432 return 0;
66433 @@ -430,6 +438,17 @@ void daemonize(const char *name, ...)
66434 vsnprintf(current->comm, sizeof(current->comm), name, args);
66435 va_end(args);
66436
66437 +#ifdef CONFIG_GRKERNSEC
66438 + write_lock(&grsec_exec_file_lock);
66439 + if (current->exec_file) {
66440 + fput(current->exec_file);
66441 + current->exec_file = NULL;
66442 + }
66443 + write_unlock(&grsec_exec_file_lock);
66444 +#endif
66445 +
66446 + gr_set_kernel_label(current);
66447 +
66448 /*
66449 * If we were started as result of loading a module, close all of the
66450 * user space pages. We don't need them, and if we didn't close them
66451 @@ -907,6 +926,8 @@ void do_exit(long code)
66452 struct task_struct *tsk = current;
66453 int group_dead;
66454
66455 + set_fs(USER_DS);
66456 +
66457 profile_task_exit(tsk);
66458
66459 WARN_ON(blk_needs_flush_plug(tsk));
66460 @@ -923,7 +944,6 @@ void do_exit(long code)
66461 * mm_release()->clear_child_tid() from writing to a user-controlled
66462 * kernel address.
66463 */
66464 - set_fs(USER_DS);
66465
66466 ptrace_event(PTRACE_EVENT_EXIT, code);
66467
66468 @@ -985,6 +1005,9 @@ void do_exit(long code)
66469 tsk->exit_code = code;
66470 taskstats_exit(tsk, group_dead);
66471
66472 + gr_acl_handle_psacct(tsk, code);
66473 + gr_acl_handle_exit();
66474 +
66475 exit_mm(tsk);
66476
66477 if (group_dead)
66478 @@ -1101,7 +1124,7 @@ SYSCALL_DEFINE1(exit, int, error_code)
66479 * Take down every thread in the group. This is called by fatal signals
66480 * as well as by sys_exit_group (below).
66481 */
66482 -void
66483 +__noreturn void
66484 do_group_exit(int exit_code)
66485 {
66486 struct signal_struct *sig = current->signal;
66487 diff --git a/kernel/fork.c b/kernel/fork.c
66488 index f00e319..c212fbc 100644
66489 --- a/kernel/fork.c
66490 +++ b/kernel/fork.c
66491 @@ -321,7 +321,7 @@ static struct task_struct *dup_task_struct(struct task_struct *orig)
66492 *stackend = STACK_END_MAGIC; /* for overflow detection */
66493
66494 #ifdef CONFIG_CC_STACKPROTECTOR
66495 - tsk->stack_canary = get_random_int();
66496 + tsk->stack_canary = pax_get_random_long();
66497 #endif
66498
66499 /*
66500 @@ -345,13 +345,78 @@ out:
66501 }
66502
66503 #ifdef CONFIG_MMU
66504 +static struct vm_area_struct *dup_vma(struct mm_struct *mm, struct mm_struct *oldmm, struct vm_area_struct *mpnt)
66505 +{
66506 + struct vm_area_struct *tmp;
66507 + unsigned long charge;
66508 + struct mempolicy *pol;
66509 + struct file *file;
66510 +
66511 + charge = 0;
66512 + if (mpnt->vm_flags & VM_ACCOUNT) {
66513 + unsigned long len;
66514 + len = (mpnt->vm_end - mpnt->vm_start) >> PAGE_SHIFT;
66515 + if (security_vm_enough_memory_mm(oldmm, len)) /* sic */
66516 + goto fail_nomem;
66517 + charge = len;
66518 + }
66519 + tmp = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL);
66520 + if (!tmp)
66521 + goto fail_nomem;
66522 + *tmp = *mpnt;
66523 + tmp->vm_mm = mm;
66524 + INIT_LIST_HEAD(&tmp->anon_vma_chain);
66525 + pol = mpol_dup(vma_policy(mpnt));
66526 + if (IS_ERR(pol))
66527 + goto fail_nomem_policy;
66528 + vma_set_policy(tmp, pol);
66529 + if (anon_vma_fork(tmp, mpnt))
66530 + goto fail_nomem_anon_vma_fork;
66531 + tmp->vm_flags &= ~VM_LOCKED;
66532 + tmp->vm_next = tmp->vm_prev = NULL;
66533 + tmp->vm_mirror = NULL;
66534 + file = tmp->vm_file;
66535 + if (file) {
66536 + struct inode *inode = file->f_path.dentry->d_inode;
66537 + struct address_space *mapping = file->f_mapping;
66538 +
66539 + get_file(file);
66540 + if (tmp->vm_flags & VM_DENYWRITE)
66541 + atomic_dec(&inode->i_writecount);
66542 + mutex_lock(&mapping->i_mmap_mutex);
66543 + if (tmp->vm_flags & VM_SHARED)
66544 + mapping->i_mmap_writable++;
66545 + flush_dcache_mmap_lock(mapping);
66546 + /* insert tmp into the share list, just after mpnt */
66547 + vma_prio_tree_add(tmp, mpnt);
66548 + flush_dcache_mmap_unlock(mapping);
66549 + mutex_unlock(&mapping->i_mmap_mutex);
66550 + }
66551 +
66552 + /*
66553 + * Clear hugetlb-related page reserves for children. This only
66554 + * affects MAP_PRIVATE mappings. Faults generated by the child
66555 + * are not guaranteed to succeed, even if read-only
66556 + */
66557 + if (is_vm_hugetlb_page(tmp))
66558 + reset_vma_resv_huge_pages(tmp);
66559 +
66560 + return tmp;
66561 +
66562 +fail_nomem_anon_vma_fork:
66563 + mpol_put(pol);
66564 +fail_nomem_policy:
66565 + kmem_cache_free(vm_area_cachep, tmp);
66566 +fail_nomem:
66567 + vm_unacct_memory(charge);
66568 + return NULL;
66569 +}
66570 +
66571 static int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm)
66572 {
66573 struct vm_area_struct *mpnt, *tmp, *prev, **pprev;
66574 struct rb_node **rb_link, *rb_parent;
66575 int retval;
66576 - unsigned long charge;
66577 - struct mempolicy *pol;
66578
66579 down_write(&oldmm->mmap_sem);
66580 flush_cache_dup_mm(oldmm);
66581 @@ -363,8 +428,8 @@ static int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm)
66582 mm->locked_vm = 0;
66583 mm->mmap = NULL;
66584 mm->mmap_cache = NULL;
66585 - mm->free_area_cache = oldmm->mmap_base;
66586 - mm->cached_hole_size = ~0UL;
66587 + mm->free_area_cache = oldmm->free_area_cache;
66588 + mm->cached_hole_size = oldmm->cached_hole_size;
66589 mm->map_count = 0;
66590 cpumask_clear(mm_cpumask(mm));
66591 mm->mm_rb = RB_ROOT;
66592 @@ -380,8 +445,6 @@ static int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm)
66593
66594 prev = NULL;
66595 for (mpnt = oldmm->mmap; mpnt; mpnt = mpnt->vm_next) {
66596 - struct file *file;
66597 -
66598 if (mpnt->vm_flags & VM_DONTCOPY) {
66599 long pages = vma_pages(mpnt);
66600 mm->total_vm -= pages;
66601 @@ -389,54 +452,11 @@ static int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm)
66602 -pages);
66603 continue;
66604 }
66605 - charge = 0;
66606 - if (mpnt->vm_flags & VM_ACCOUNT) {
66607 - unsigned long len;
66608 - len = (mpnt->vm_end - mpnt->vm_start) >> PAGE_SHIFT;
66609 - if (security_vm_enough_memory_mm(oldmm, len)) /* sic */
66610 - goto fail_nomem;
66611 - charge = len;
66612 + tmp = dup_vma(mm, oldmm, mpnt);
66613 + if (!tmp) {
66614 + retval = -ENOMEM;
66615 + goto out;
66616 }
66617 - tmp = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL);
66618 - if (!tmp)
66619 - goto fail_nomem;
66620 - *tmp = *mpnt;
66621 - INIT_LIST_HEAD(&tmp->anon_vma_chain);
66622 - pol = mpol_dup(vma_policy(mpnt));
66623 - retval = PTR_ERR(pol);
66624 - if (IS_ERR(pol))
66625 - goto fail_nomem_policy;
66626 - vma_set_policy(tmp, pol);
66627 - tmp->vm_mm = mm;
66628 - if (anon_vma_fork(tmp, mpnt))
66629 - goto fail_nomem_anon_vma_fork;
66630 - tmp->vm_flags &= ~VM_LOCKED;
66631 - tmp->vm_next = tmp->vm_prev = NULL;
66632 - file = tmp->vm_file;
66633 - if (file) {
66634 - struct inode *inode = file->f_path.dentry->d_inode;
66635 - struct address_space *mapping = file->f_mapping;
66636 -
66637 - get_file(file);
66638 - if (tmp->vm_flags & VM_DENYWRITE)
66639 - atomic_dec(&inode->i_writecount);
66640 - mutex_lock(&mapping->i_mmap_mutex);
66641 - if (tmp->vm_flags & VM_SHARED)
66642 - mapping->i_mmap_writable++;
66643 - flush_dcache_mmap_lock(mapping);
66644 - /* insert tmp into the share list, just after mpnt */
66645 - vma_prio_tree_add(tmp, mpnt);
66646 - flush_dcache_mmap_unlock(mapping);
66647 - mutex_unlock(&mapping->i_mmap_mutex);
66648 - }
66649 -
66650 - /*
66651 - * Clear hugetlb-related page reserves for children. This only
66652 - * affects MAP_PRIVATE mappings. Faults generated by the child
66653 - * are not guaranteed to succeed, even if read-only
66654 - */
66655 - if (is_vm_hugetlb_page(tmp))
66656 - reset_vma_resv_huge_pages(tmp);
66657
66658 /*
66659 * Link in the new vma and copy the page table entries.
66660 @@ -459,9 +479,34 @@ static int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm)
66661 if (retval)
66662 goto out;
66663
66664 - if (file && uprobe_mmap(tmp))
66665 + if (tmp->vm_file && uprobe_mmap(tmp))
66666 goto out;
66667 }
66668 +
66669 +#ifdef CONFIG_PAX_SEGMEXEC
66670 + if (oldmm->pax_flags & MF_PAX_SEGMEXEC) {
66671 + struct vm_area_struct *mpnt_m;
66672 +
66673 + for (mpnt = oldmm->mmap, mpnt_m = mm->mmap; mpnt; mpnt = mpnt->vm_next, mpnt_m = mpnt_m->vm_next) {
66674 + BUG_ON(!mpnt_m || mpnt_m->vm_mirror || mpnt->vm_mm != oldmm || mpnt_m->vm_mm != mm);
66675 +
66676 + if (!mpnt->vm_mirror)
66677 + continue;
66678 +
66679 + if (mpnt->vm_end <= SEGMEXEC_TASK_SIZE) {
66680 + BUG_ON(mpnt->vm_mirror->vm_mirror != mpnt);
66681 + mpnt->vm_mirror = mpnt_m;
66682 + } else {
66683 + BUG_ON(mpnt->vm_mirror->vm_mirror == mpnt || mpnt->vm_mirror->vm_mirror->vm_mm != mm);
66684 + mpnt_m->vm_mirror = mpnt->vm_mirror->vm_mirror;
66685 + mpnt_m->vm_mirror->vm_mirror = mpnt_m;
66686 + mpnt->vm_mirror->vm_mirror = mpnt;
66687 + }
66688 + }
66689 + BUG_ON(mpnt_m);
66690 + }
66691 +#endif
66692 +
66693 /* a new mm has just been created */
66694 arch_dup_mmap(oldmm, mm);
66695 retval = 0;
66696 @@ -470,14 +515,6 @@ out:
66697 flush_tlb_mm(oldmm);
66698 up_write(&oldmm->mmap_sem);
66699 return retval;
66700 -fail_nomem_anon_vma_fork:
66701 - mpol_put(pol);
66702 -fail_nomem_policy:
66703 - kmem_cache_free(vm_area_cachep, tmp);
66704 -fail_nomem:
66705 - retval = -ENOMEM;
66706 - vm_unacct_memory(charge);
66707 - goto out;
66708 }
66709
66710 static inline int mm_alloc_pgd(struct mm_struct *mm)
66711 @@ -714,8 +751,8 @@ struct mm_struct *mm_access(struct task_struct *task, unsigned int mode)
66712 return ERR_PTR(err);
66713
66714 mm = get_task_mm(task);
66715 - if (mm && mm != current->mm &&
66716 - !ptrace_may_access(task, mode)) {
66717 + if (mm && ((mm != current->mm && !ptrace_may_access(task, mode)) ||
66718 + (mode == PTRACE_MODE_ATTACH && (gr_handle_proc_ptrace(task) || gr_acl_handle_procpidmem(task))))) {
66719 mmput(mm);
66720 mm = ERR_PTR(-EACCES);
66721 }
66722 @@ -936,13 +973,14 @@ static int copy_fs(unsigned long clone_flags, struct task_struct *tsk)
66723 spin_unlock(&fs->lock);
66724 return -EAGAIN;
66725 }
66726 - fs->users++;
66727 + atomic_inc(&fs->users);
66728 spin_unlock(&fs->lock);
66729 return 0;
66730 }
66731 tsk->fs = copy_fs_struct(fs);
66732 if (!tsk->fs)
66733 return -ENOMEM;
66734 + gr_set_chroot_entries(tsk, &tsk->fs->root);
66735 return 0;
66736 }
66737
66738 @@ -1209,6 +1247,9 @@ static struct task_struct *copy_process(unsigned long clone_flags,
66739 DEBUG_LOCKS_WARN_ON(!p->softirqs_enabled);
66740 #endif
66741 retval = -EAGAIN;
66742 +
66743 + gr_learn_resource(p, RLIMIT_NPROC, atomic_read(&p->real_cred->user->processes), 0);
66744 +
66745 if (atomic_read(&p->real_cred->user->processes) >=
66746 task_rlimit(p, RLIMIT_NPROC)) {
66747 if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RESOURCE) &&
66748 @@ -1431,6 +1472,9 @@ static struct task_struct *copy_process(unsigned long clone_flags,
66749 /* Need tasklist lock for parent etc handling! */
66750 write_lock_irq(&tasklist_lock);
66751
66752 + /* synchronizes with gr_set_acls() */
66753 + gr_copy_label(p);
66754 +
66755 /* CLONE_PARENT re-uses the old parent */
66756 if (clone_flags & (CLONE_PARENT|CLONE_THREAD)) {
66757 p->real_parent = current->real_parent;
66758 @@ -1541,6 +1585,8 @@ bad_fork_cleanup_count:
66759 bad_fork_free:
66760 free_task(p);
66761 fork_out:
66762 + gr_log_forkfail(retval);
66763 +
66764 return ERR_PTR(retval);
66765 }
66766
66767 @@ -1641,6 +1687,8 @@ long do_fork(unsigned long clone_flags,
66768 if (clone_flags & CLONE_PARENT_SETTID)
66769 put_user(nr, parent_tidptr);
66770
66771 + gr_handle_brute_check();
66772 +
66773 if (clone_flags & CLONE_VFORK) {
66774 p->vfork_done = &vfork;
66775 init_completion(&vfork);
66776 @@ -1739,7 +1787,7 @@ static int unshare_fs(unsigned long unshare_flags, struct fs_struct **new_fsp)
66777 return 0;
66778
66779 /* don't need lock here; in the worst case we'll do useless copy */
66780 - if (fs->users == 1)
66781 + if (atomic_read(&fs->users) == 1)
66782 return 0;
66783
66784 *new_fsp = copy_fs_struct(fs);
66785 @@ -1828,7 +1876,8 @@ SYSCALL_DEFINE1(unshare, unsigned long, unshare_flags)
66786 fs = current->fs;
66787 spin_lock(&fs->lock);
66788 current->fs = new_fs;
66789 - if (--fs->users)
66790 + gr_set_chroot_entries(current, &current->fs->root);
66791 + if (atomic_dec_return(&fs->users))
66792 new_fs = NULL;
66793 else
66794 new_fs = fs;
66795 diff --git a/kernel/futex.c b/kernel/futex.c
66796 index 3717e7b..473c750 100644
66797 --- a/kernel/futex.c
66798 +++ b/kernel/futex.c
66799 @@ -54,6 +54,7 @@
66800 #include <linux/mount.h>
66801 #include <linux/pagemap.h>
66802 #include <linux/syscalls.h>
66803 +#include <linux/ptrace.h>
66804 #include <linux/signal.h>
66805 #include <linux/export.h>
66806 #include <linux/magic.h>
66807 @@ -239,6 +240,11 @@ get_futex_key(u32 __user *uaddr, int fshared, union futex_key *key, int rw)
66808 struct page *page, *page_head;
66809 int err, ro = 0;
66810
66811 +#ifdef CONFIG_PAX_SEGMEXEC
66812 + if ((mm->pax_flags & MF_PAX_SEGMEXEC) && address >= SEGMEXEC_TASK_SIZE)
66813 + return -EFAULT;
66814 +#endif
66815 +
66816 /*
66817 * The futex address must be "naturally" aligned.
66818 */
66819 @@ -2714,6 +2720,7 @@ static int __init futex_init(void)
66820 {
66821 u32 curval;
66822 int i;
66823 + mm_segment_t oldfs;
66824
66825 /*
66826 * This will fail and we want it. Some arch implementations do
66827 @@ -2725,8 +2732,11 @@ static int __init futex_init(void)
66828 * implementation, the non-functional ones will return
66829 * -ENOSYS.
66830 */
66831 + oldfs = get_fs();
66832 + set_fs(USER_DS);
66833 if (cmpxchg_futex_value_locked(&curval, NULL, 0, 0) == -EFAULT)
66834 futex_cmpxchg_enabled = 1;
66835 + set_fs(oldfs);
66836
66837 for (i = 0; i < ARRAY_SIZE(futex_queues); i++) {
66838 plist_head_init(&futex_queues[i].chain);
66839 diff --git a/kernel/gcov/base.c b/kernel/gcov/base.c
66840 index 9b22d03..6295b62 100644
66841 --- a/kernel/gcov/base.c
66842 +++ b/kernel/gcov/base.c
66843 @@ -102,11 +102,6 @@ void gcov_enable_events(void)
66844 }
66845
66846 #ifdef CONFIG_MODULES
66847 -static inline int within(void *addr, void *start, unsigned long size)
66848 -{
66849 - return ((addr >= start) && (addr < start + size));
66850 -}
66851 -
66852 /* Update list and generate events when modules are unloaded. */
66853 static int gcov_module_notifier(struct notifier_block *nb, unsigned long event,
66854 void *data)
66855 @@ -121,7 +116,7 @@ static int gcov_module_notifier(struct notifier_block *nb, unsigned long event,
66856 prev = NULL;
66857 /* Remove entries located in module from linked list. */
66858 for (info = gcov_info_head; info; info = info->next) {
66859 - if (within(info, mod->module_core, mod->core_size)) {
66860 + if (within_module_core_rw((unsigned long)info, mod)) {
66861 if (prev)
66862 prev->next = info->next;
66863 else
66864 diff --git a/kernel/hrtimer.c b/kernel/hrtimer.c
66865 index 6db7a5e..25b6648 100644
66866 --- a/kernel/hrtimer.c
66867 +++ b/kernel/hrtimer.c
66868 @@ -1407,7 +1407,7 @@ void hrtimer_peek_ahead_timers(void)
66869 local_irq_restore(flags);
66870 }
66871
66872 -static void run_hrtimer_softirq(struct softirq_action *h)
66873 +static void run_hrtimer_softirq(void)
66874 {
66875 struct hrtimer_cpu_base *cpu_base = &__get_cpu_var(hrtimer_bases);
66876
66877 diff --git a/kernel/jump_label.c b/kernel/jump_label.c
66878 index 4304919..408c4c0 100644
66879 --- a/kernel/jump_label.c
66880 +++ b/kernel/jump_label.c
66881 @@ -13,6 +13,7 @@
66882 #include <linux/sort.h>
66883 #include <linux/err.h>
66884 #include <linux/static_key.h>
66885 +#include <linux/mm.h>
66886
66887 #ifdef HAVE_JUMP_LABEL
66888
66889 @@ -50,7 +51,9 @@ jump_label_sort_entries(struct jump_entry *start, struct jump_entry *stop)
66890
66891 size = (((unsigned long)stop - (unsigned long)start)
66892 / sizeof(struct jump_entry));
66893 + pax_open_kernel();
66894 sort(start, size, sizeof(struct jump_entry), jump_label_cmp, NULL);
66895 + pax_close_kernel();
66896 }
66897
66898 static void jump_label_update(struct static_key *key, int enable);
66899 @@ -356,10 +359,12 @@ static void jump_label_invalidate_module_init(struct module *mod)
66900 struct jump_entry *iter_stop = iter_start + mod->num_jump_entries;
66901 struct jump_entry *iter;
66902
66903 + pax_open_kernel();
66904 for (iter = iter_start; iter < iter_stop; iter++) {
66905 if (within_module_init(iter->code, mod))
66906 iter->code = 0;
66907 }
66908 + pax_close_kernel();
66909 }
66910
66911 static int
66912 diff --git a/kernel/kallsyms.c b/kernel/kallsyms.c
66913 index 2169fee..45c017a 100644
66914 --- a/kernel/kallsyms.c
66915 +++ b/kernel/kallsyms.c
66916 @@ -11,6 +11,9 @@
66917 * Changed the compression method from stem compression to "table lookup"
66918 * compression (see scripts/kallsyms.c for a more complete description)
66919 */
66920 +#ifdef CONFIG_GRKERNSEC_HIDESYM
66921 +#define __INCLUDED_BY_HIDESYM 1
66922 +#endif
66923 #include <linux/kallsyms.h>
66924 #include <linux/module.h>
66925 #include <linux/init.h>
66926 @@ -53,12 +56,33 @@ extern const unsigned long kallsyms_markers[] __attribute__((weak));
66927
66928 static inline int is_kernel_inittext(unsigned long addr)
66929 {
66930 + if (system_state != SYSTEM_BOOTING)
66931 + return 0;
66932 +
66933 if (addr >= (unsigned long)_sinittext
66934 && addr <= (unsigned long)_einittext)
66935 return 1;
66936 return 0;
66937 }
66938
66939 +#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
66940 +#ifdef CONFIG_MODULES
66941 +static inline int is_module_text(unsigned long addr)
66942 +{
66943 + if ((unsigned long)MODULES_EXEC_VADDR <= addr && addr <= (unsigned long)MODULES_EXEC_END)
66944 + return 1;
66945 +
66946 + addr = ktla_ktva(addr);
66947 + return (unsigned long)MODULES_EXEC_VADDR <= addr && addr <= (unsigned long)MODULES_EXEC_END;
66948 +}
66949 +#else
66950 +static inline int is_module_text(unsigned long addr)
66951 +{
66952 + return 0;
66953 +}
66954 +#endif
66955 +#endif
66956 +
66957 static inline int is_kernel_text(unsigned long addr)
66958 {
66959 if ((addr >= (unsigned long)_stext && addr <= (unsigned long)_etext) ||
66960 @@ -69,13 +93,28 @@ static inline int is_kernel_text(unsigned long addr)
66961
66962 static inline int is_kernel(unsigned long addr)
66963 {
66964 +
66965 +#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
66966 + if (is_kernel_text(addr) || is_kernel_inittext(addr))
66967 + return 1;
66968 +
66969 + if (ktla_ktva((unsigned long)_text) <= addr && addr < (unsigned long)_end)
66970 +#else
66971 if (addr >= (unsigned long)_stext && addr <= (unsigned long)_end)
66972 +#endif
66973 +
66974 return 1;
66975 return in_gate_area_no_mm(addr);
66976 }
66977
66978 static int is_ksym_addr(unsigned long addr)
66979 {
66980 +
66981 +#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
66982 + if (is_module_text(addr))
66983 + return 0;
66984 +#endif
66985 +
66986 if (all_var)
66987 return is_kernel(addr);
66988
66989 @@ -470,7 +509,6 @@ static unsigned long get_ksymbol_core(struct kallsym_iter *iter)
66990
66991 static void reset_iter(struct kallsym_iter *iter, loff_t new_pos)
66992 {
66993 - iter->name[0] = '\0';
66994 iter->nameoff = get_symbol_offset(new_pos);
66995 iter->pos = new_pos;
66996 }
66997 @@ -518,6 +556,11 @@ static int s_show(struct seq_file *m, void *p)
66998 {
66999 struct kallsym_iter *iter = m->private;
67000
67001 +#ifdef CONFIG_GRKERNSEC_HIDESYM
67002 + if (current_uid())
67003 + return 0;
67004 +#endif
67005 +
67006 /* Some debugging symbols have no name. Ignore them. */
67007 if (!iter->name[0])
67008 return 0;
67009 @@ -531,6 +574,7 @@ static int s_show(struct seq_file *m, void *p)
67010 */
67011 type = iter->exported ? toupper(iter->type) :
67012 tolower(iter->type);
67013 +
67014 seq_printf(m, "%pK %c %s\t[%s]\n", (void *)iter->value,
67015 type, iter->name, iter->module_name);
67016 } else
67017 @@ -556,7 +600,7 @@ static int kallsyms_open(struct inode *inode, struct file *file)
67018 struct kallsym_iter *iter;
67019 int ret;
67020
67021 - iter = kmalloc(sizeof(*iter), GFP_KERNEL);
67022 + iter = kzalloc(sizeof(*iter), GFP_KERNEL);
67023 if (!iter)
67024 return -ENOMEM;
67025 reset_iter(iter, 0);
67026 diff --git a/kernel/kexec.c b/kernel/kexec.c
67027 index 4e2e472..cd0c7ae 100644
67028 --- a/kernel/kexec.c
67029 +++ b/kernel/kexec.c
67030 @@ -1046,7 +1046,8 @@ asmlinkage long compat_sys_kexec_load(unsigned long entry,
67031 unsigned long flags)
67032 {
67033 struct compat_kexec_segment in;
67034 - struct kexec_segment out, __user *ksegments;
67035 + struct kexec_segment out;
67036 + struct kexec_segment __user *ksegments;
67037 unsigned long i, result;
67038
67039 /* Don't allow clients that don't understand the native
67040 diff --git a/kernel/kmod.c b/kernel/kmod.c
67041 index ff2c7cb..085d7af 100644
67042 --- a/kernel/kmod.c
67043 +++ b/kernel/kmod.c
67044 @@ -66,7 +66,7 @@ static void free_modprobe_argv(struct subprocess_info *info)
67045 kfree(info->argv);
67046 }
67047
67048 -static int call_modprobe(char *module_name, int wait)
67049 +static int call_modprobe(char *module_name, char *module_param, int wait)
67050 {
67051 static char *envp[] = {
67052 "HOME=/",
67053 @@ -75,7 +75,7 @@ static int call_modprobe(char *module_name, int wait)
67054 NULL
67055 };
67056
67057 - char **argv = kmalloc(sizeof(char *[5]), GFP_KERNEL);
67058 + char **argv = kmalloc(sizeof(char *[6]), GFP_KERNEL);
67059 if (!argv)
67060 goto out;
67061
67062 @@ -87,7 +87,8 @@ static int call_modprobe(char *module_name, int wait)
67063 argv[1] = "-q";
67064 argv[2] = "--";
67065 argv[3] = module_name; /* check free_modprobe_argv() */
67066 - argv[4] = NULL;
67067 + argv[4] = module_param;
67068 + argv[5] = NULL;
67069
67070 return call_usermodehelper_fns(modprobe_path, argv, envp,
67071 wait | UMH_KILLABLE, NULL, free_modprobe_argv, NULL);
67072 @@ -112,9 +113,8 @@ out:
67073 * If module auto-loading support is disabled then this function
67074 * becomes a no-operation.
67075 */
67076 -int __request_module(bool wait, const char *fmt, ...)
67077 +static int ____request_module(bool wait, char *module_param, const char *fmt, va_list ap)
67078 {
67079 - va_list args;
67080 char module_name[MODULE_NAME_LEN];
67081 unsigned int max_modprobes;
67082 int ret;
67083 @@ -122,9 +122,7 @@ int __request_module(bool wait, const char *fmt, ...)
67084 #define MAX_KMOD_CONCURRENT 50 /* Completely arbitrary value - KAO */
67085 static int kmod_loop_msg;
67086
67087 - va_start(args, fmt);
67088 - ret = vsnprintf(module_name, MODULE_NAME_LEN, fmt, args);
67089 - va_end(args);
67090 + ret = vsnprintf(module_name, MODULE_NAME_LEN, fmt, ap);
67091 if (ret >= MODULE_NAME_LEN)
67092 return -ENAMETOOLONG;
67093
67094 @@ -132,6 +130,20 @@ int __request_module(bool wait, const char *fmt, ...)
67095 if (ret)
67096 return ret;
67097
67098 +#ifdef CONFIG_GRKERNSEC_MODHARDEN
67099 + if (!current_uid()) {
67100 + /* hack to workaround consolekit/udisks stupidity */
67101 + read_lock(&tasklist_lock);
67102 + if (!strcmp(current->comm, "mount") &&
67103 + current->real_parent && !strncmp(current->real_parent->comm, "udisk", 5)) {
67104 + read_unlock(&tasklist_lock);
67105 + printk(KERN_ALERT "grsec: denied attempt to auto-load fs module %.64s by udisks\n", module_name);
67106 + return -EPERM;
67107 + }
67108 + read_unlock(&tasklist_lock);
67109 + }
67110 +#endif
67111 +
67112 /* If modprobe needs a service that is in a module, we get a recursive
67113 * loop. Limit the number of running kmod threads to max_threads/2 or
67114 * MAX_KMOD_CONCURRENT, whichever is the smaller. A cleaner method
67115 @@ -160,11 +172,52 @@ int __request_module(bool wait, const char *fmt, ...)
67116
67117 trace_module_request(module_name, wait, _RET_IP_);
67118
67119 - ret = call_modprobe(module_name, wait ? UMH_WAIT_PROC : UMH_WAIT_EXEC);
67120 + ret = call_modprobe(module_name, module_param, wait ? UMH_WAIT_PROC : UMH_WAIT_EXEC);
67121
67122 atomic_dec(&kmod_concurrent);
67123 return ret;
67124 }
67125 +
67126 +int ___request_module(bool wait, char *module_param, const char *fmt, ...)
67127 +{
67128 + va_list args;
67129 + int ret;
67130 +
67131 + va_start(args, fmt);
67132 + ret = ____request_module(wait, module_param, fmt, args);
67133 + va_end(args);
67134 +
67135 + return ret;
67136 +}
67137 +
67138 +int __request_module(bool wait, const char *fmt, ...)
67139 +{
67140 + va_list args;
67141 + int ret;
67142 +
67143 +#ifdef CONFIG_GRKERNSEC_MODHARDEN
67144 + if (current_uid()) {
67145 + char module_param[MODULE_NAME_LEN];
67146 +
67147 + memset(module_param, 0, sizeof(module_param));
67148 +
67149 + snprintf(module_param, sizeof(module_param) - 1, "grsec_modharden_normal%u_", current_uid());
67150 +
67151 + va_start(args, fmt);
67152 + ret = ____request_module(wait, module_param, fmt, args);
67153 + va_end(args);
67154 +
67155 + return ret;
67156 + }
67157 +#endif
67158 +
67159 + va_start(args, fmt);
67160 + ret = ____request_module(wait, NULL, fmt, args);
67161 + va_end(args);
67162 +
67163 + return ret;
67164 +}
67165 +
67166 EXPORT_SYMBOL(__request_module);
67167 #endif /* CONFIG_MODULES */
67168
67169 @@ -266,7 +319,7 @@ static int wait_for_helper(void *data)
67170 *
67171 * Thus the __user pointer cast is valid here.
67172 */
67173 - sys_wait4(pid, (int __user *)&ret, 0, NULL);
67174 + sys_wait4(pid, (int __force_user *)&ret, 0, NULL);
67175
67176 /*
67177 * If ret is 0, either ____call_usermodehelper failed and the
67178 diff --git a/kernel/kprobes.c b/kernel/kprobes.c
67179 index c62b854..cb67968 100644
67180 --- a/kernel/kprobes.c
67181 +++ b/kernel/kprobes.c
67182 @@ -185,7 +185,7 @@ static kprobe_opcode_t __kprobes *__get_insn_slot(struct kprobe_insn_cache *c)
67183 * kernel image and loaded module images reside. This is required
67184 * so x86_64 can correctly handle the %rip-relative fixups.
67185 */
67186 - kip->insns = module_alloc(PAGE_SIZE);
67187 + kip->insns = module_alloc_exec(PAGE_SIZE);
67188 if (!kip->insns) {
67189 kfree(kip);
67190 return NULL;
67191 @@ -225,7 +225,7 @@ static int __kprobes collect_one_slot(struct kprobe_insn_page *kip, int idx)
67192 */
67193 if (!list_is_singular(&kip->list)) {
67194 list_del(&kip->list);
67195 - module_free(NULL, kip->insns);
67196 + module_free_exec(NULL, kip->insns);
67197 kfree(kip);
67198 }
67199 return 1;
67200 @@ -1955,7 +1955,7 @@ static int __init init_kprobes(void)
67201 {
67202 int i, err = 0;
67203 unsigned long offset = 0, size = 0;
67204 - char *modname, namebuf[128];
67205 + char *modname, namebuf[KSYM_NAME_LEN];
67206 const char *symbol_name;
67207 void *addr;
67208 struct kprobe_blackpoint *kb;
67209 @@ -2081,7 +2081,7 @@ static int __kprobes show_kprobe_addr(struct seq_file *pi, void *v)
67210 const char *sym = NULL;
67211 unsigned int i = *(loff_t *) v;
67212 unsigned long offset = 0;
67213 - char *modname, namebuf[128];
67214 + char *modname, namebuf[KSYM_NAME_LEN];
67215
67216 head = &kprobe_table[i];
67217 preempt_disable();
67218 diff --git a/kernel/ksysfs.c b/kernel/ksysfs.c
67219 index 4e316e1..5501eef 100644
67220 --- a/kernel/ksysfs.c
67221 +++ b/kernel/ksysfs.c
67222 @@ -47,6 +47,8 @@ static ssize_t uevent_helper_store(struct kobject *kobj,
67223 {
67224 if (count+1 > UEVENT_HELPER_PATH_LEN)
67225 return -ENOENT;
67226 + if (!capable(CAP_SYS_ADMIN))
67227 + return -EPERM;
67228 memcpy(uevent_helper, buf, count);
67229 uevent_helper[count] = '\0';
67230 if (count && uevent_helper[count-1] == '\n')
67231 diff --git a/kernel/lockdep.c b/kernel/lockdep.c
67232 index ea9ee45..67ebc8f 100644
67233 --- a/kernel/lockdep.c
67234 +++ b/kernel/lockdep.c
67235 @@ -590,6 +590,10 @@ static int static_obj(void *obj)
67236 end = (unsigned long) &_end,
67237 addr = (unsigned long) obj;
67238
67239 +#ifdef CONFIG_PAX_KERNEXEC
67240 + start = ktla_ktva(start);
67241 +#endif
67242 +
67243 /*
67244 * static variable?
67245 */
67246 @@ -730,6 +734,7 @@ register_lock_class(struct lockdep_map *lock, unsigned int subclass, int force)
67247 if (!static_obj(lock->key)) {
67248 debug_locks_off();
67249 printk("INFO: trying to register non-static key.\n");
67250 + printk("lock:%pS key:%pS.\n", lock, lock->key);
67251 printk("the code is fine but needs lockdep annotation.\n");
67252 printk("turning off the locking correctness validator.\n");
67253 dump_stack();
67254 @@ -3042,7 +3047,7 @@ static int __lock_acquire(struct lockdep_map *lock, unsigned int subclass,
67255 if (!class)
67256 return 0;
67257 }
67258 - atomic_inc((atomic_t *)&class->ops);
67259 + atomic_inc_unchecked((atomic_unchecked_t *)&class->ops);
67260 if (very_verbose(class)) {
67261 printk("\nacquire class [%p] %s", class->key, class->name);
67262 if (class->name_version > 1)
67263 diff --git a/kernel/lockdep_proc.c b/kernel/lockdep_proc.c
67264 index 91c32a0..b2c71c5 100644
67265 --- a/kernel/lockdep_proc.c
67266 +++ b/kernel/lockdep_proc.c
67267 @@ -39,7 +39,7 @@ static void l_stop(struct seq_file *m, void *v)
67268
67269 static void print_name(struct seq_file *m, struct lock_class *class)
67270 {
67271 - char str[128];
67272 + char str[KSYM_NAME_LEN];
67273 const char *name = class->name;
67274
67275 if (!name) {
67276 diff --git a/kernel/module.c b/kernel/module.c
67277 index 4edbd9c..165e780 100644
67278 --- a/kernel/module.c
67279 +++ b/kernel/module.c
67280 @@ -58,6 +58,7 @@
67281 #include <linux/jump_label.h>
67282 #include <linux/pfn.h>
67283 #include <linux/bsearch.h>
67284 +#include <linux/grsecurity.h>
67285
67286 #define CREATE_TRACE_POINTS
67287 #include <trace/events/module.h>
67288 @@ -114,7 +115,8 @@ static BLOCKING_NOTIFIER_HEAD(module_notify_list);
67289
67290 /* Bounds of module allocation, for speeding __module_address.
67291 * Protected by module_mutex. */
67292 -static unsigned long module_addr_min = -1UL, module_addr_max = 0;
67293 +static unsigned long module_addr_min_rw = -1UL, module_addr_max_rw = 0;
67294 +static unsigned long module_addr_min_rx = -1UL, module_addr_max_rx = 0;
67295
67296 int register_module_notifier(struct notifier_block * nb)
67297 {
67298 @@ -278,7 +280,7 @@ bool each_symbol_section(bool (*fn)(const struct symsearch *arr,
67299 return true;
67300
67301 list_for_each_entry_rcu(mod, &modules, list) {
67302 - struct symsearch arr[] = {
67303 + struct symsearch modarr[] = {
67304 { mod->syms, mod->syms + mod->num_syms, mod->crcs,
67305 NOT_GPL_ONLY, false },
67306 { mod->gpl_syms, mod->gpl_syms + mod->num_gpl_syms,
67307 @@ -300,7 +302,7 @@ bool each_symbol_section(bool (*fn)(const struct symsearch *arr,
67308 #endif
67309 };
67310
67311 - if (each_symbol_in_section(arr, ARRAY_SIZE(arr), mod, fn, data))
67312 + if (each_symbol_in_section(modarr, ARRAY_SIZE(modarr), mod, fn, data))
67313 return true;
67314 }
67315 return false;
67316 @@ -432,7 +434,7 @@ static inline void __percpu *mod_percpu(struct module *mod)
67317 static int percpu_modalloc(struct module *mod,
67318 unsigned long size, unsigned long align)
67319 {
67320 - if (align > PAGE_SIZE) {
67321 + if (align-1 >= PAGE_SIZE) {
67322 printk(KERN_WARNING "%s: per-cpu alignment %li > %li\n",
67323 mod->name, align, PAGE_SIZE);
67324 align = PAGE_SIZE;
67325 @@ -1032,7 +1034,7 @@ struct module_attribute module_uevent =
67326 static ssize_t show_coresize(struct module_attribute *mattr,
67327 struct module_kobject *mk, char *buffer)
67328 {
67329 - return sprintf(buffer, "%u\n", mk->mod->core_size);
67330 + return sprintf(buffer, "%u\n", mk->mod->core_size_rx + mk->mod->core_size_rw);
67331 }
67332
67333 static struct module_attribute modinfo_coresize =
67334 @@ -1041,7 +1043,7 @@ static struct module_attribute modinfo_coresize =
67335 static ssize_t show_initsize(struct module_attribute *mattr,
67336 struct module_kobject *mk, char *buffer)
67337 {
67338 - return sprintf(buffer, "%u\n", mk->mod->init_size);
67339 + return sprintf(buffer, "%u\n", mk->mod->init_size_rx + mk->mod->init_size_rw);
67340 }
67341
67342 static struct module_attribute modinfo_initsize =
67343 @@ -1255,7 +1257,7 @@ resolve_symbol_wait(struct module *mod,
67344 */
67345 #ifdef CONFIG_SYSFS
67346
67347 -#ifdef CONFIG_KALLSYMS
67348 +#if defined(CONFIG_KALLSYMS) && !defined(CONFIG_GRKERNSEC_HIDESYM)
67349 static inline bool sect_empty(const Elf_Shdr *sect)
67350 {
67351 return !(sect->sh_flags & SHF_ALLOC) || sect->sh_size == 0;
67352 @@ -1721,21 +1723,21 @@ static void set_section_ro_nx(void *base,
67353
67354 static void unset_module_core_ro_nx(struct module *mod)
67355 {
67356 - set_page_attributes(mod->module_core + mod->core_text_size,
67357 - mod->module_core + mod->core_size,
67358 + set_page_attributes(mod->module_core_rw,
67359 + mod->module_core_rw + mod->core_size_rw,
67360 set_memory_x);
67361 - set_page_attributes(mod->module_core,
67362 - mod->module_core + mod->core_ro_size,
67363 + set_page_attributes(mod->module_core_rx,
67364 + mod->module_core_rx + mod->core_size_rx,
67365 set_memory_rw);
67366 }
67367
67368 static void unset_module_init_ro_nx(struct module *mod)
67369 {
67370 - set_page_attributes(mod->module_init + mod->init_text_size,
67371 - mod->module_init + mod->init_size,
67372 + set_page_attributes(mod->module_init_rw,
67373 + mod->module_init_rw + mod->init_size_rw,
67374 set_memory_x);
67375 - set_page_attributes(mod->module_init,
67376 - mod->module_init + mod->init_ro_size,
67377 + set_page_attributes(mod->module_init_rx,
67378 + mod->module_init_rx + mod->init_size_rx,
67379 set_memory_rw);
67380 }
67381
67382 @@ -1746,14 +1748,14 @@ void set_all_modules_text_rw(void)
67383
67384 mutex_lock(&module_mutex);
67385 list_for_each_entry_rcu(mod, &modules, list) {
67386 - if ((mod->module_core) && (mod->core_text_size)) {
67387 - set_page_attributes(mod->module_core,
67388 - mod->module_core + mod->core_text_size,
67389 + if ((mod->module_core_rx) && (mod->core_size_rx)) {
67390 + set_page_attributes(mod->module_core_rx,
67391 + mod->module_core_rx + mod->core_size_rx,
67392 set_memory_rw);
67393 }
67394 - if ((mod->module_init) && (mod->init_text_size)) {
67395 - set_page_attributes(mod->module_init,
67396 - mod->module_init + mod->init_text_size,
67397 + if ((mod->module_init_rx) && (mod->init_size_rx)) {
67398 + set_page_attributes(mod->module_init_rx,
67399 + mod->module_init_rx + mod->init_size_rx,
67400 set_memory_rw);
67401 }
67402 }
67403 @@ -1767,14 +1769,14 @@ void set_all_modules_text_ro(void)
67404
67405 mutex_lock(&module_mutex);
67406 list_for_each_entry_rcu(mod, &modules, list) {
67407 - if ((mod->module_core) && (mod->core_text_size)) {
67408 - set_page_attributes(mod->module_core,
67409 - mod->module_core + mod->core_text_size,
67410 + if ((mod->module_core_rx) && (mod->core_size_rx)) {
67411 + set_page_attributes(mod->module_core_rx,
67412 + mod->module_core_rx + mod->core_size_rx,
67413 set_memory_ro);
67414 }
67415 - if ((mod->module_init) && (mod->init_text_size)) {
67416 - set_page_attributes(mod->module_init,
67417 - mod->module_init + mod->init_text_size,
67418 + if ((mod->module_init_rx) && (mod->init_size_rx)) {
67419 + set_page_attributes(mod->module_init_rx,
67420 + mod->module_init_rx + mod->init_size_rx,
67421 set_memory_ro);
67422 }
67423 }
67424 @@ -1820,16 +1822,19 @@ static void free_module(struct module *mod)
67425
67426 /* This may be NULL, but that's OK */
67427 unset_module_init_ro_nx(mod);
67428 - module_free(mod, mod->module_init);
67429 + module_free(mod, mod->module_init_rw);
67430 + module_free_exec(mod, mod->module_init_rx);
67431 kfree(mod->args);
67432 percpu_modfree(mod);
67433
67434 /* Free lock-classes: */
67435 - lockdep_free_key_range(mod->module_core, mod->core_size);
67436 + lockdep_free_key_range(mod->module_core_rx, mod->core_size_rx);
67437 + lockdep_free_key_range(mod->module_core_rw, mod->core_size_rw);
67438
67439 /* Finally, free the core (containing the module structure) */
67440 unset_module_core_ro_nx(mod);
67441 - module_free(mod, mod->module_core);
67442 + module_free_exec(mod, mod->module_core_rx);
67443 + module_free(mod, mod->module_core_rw);
67444
67445 #ifdef CONFIG_MPU
67446 update_protections(current->mm);
67447 @@ -1899,9 +1904,31 @@ static int simplify_symbols(struct module *mod, const struct load_info *info)
67448 int ret = 0;
67449 const struct kernel_symbol *ksym;
67450
67451 +#ifdef CONFIG_GRKERNSEC_MODHARDEN
67452 + int is_fs_load = 0;
67453 + int register_filesystem_found = 0;
67454 + char *p;
67455 +
67456 + p = strstr(mod->args, "grsec_modharden_fs");
67457 + if (p) {
67458 + char *endptr = p + strlen("grsec_modharden_fs");
67459 + /* copy \0 as well */
67460 + memmove(p, endptr, strlen(mod->args) - (unsigned int)(endptr - mod->args) + 1);
67461 + is_fs_load = 1;
67462 + }
67463 +#endif
67464 +
67465 for (i = 1; i < symsec->sh_size / sizeof(Elf_Sym); i++) {
67466 const char *name = info->strtab + sym[i].st_name;
67467
67468 +#ifdef CONFIG_GRKERNSEC_MODHARDEN
67469 + /* it's a real shame this will never get ripped and copied
67470 + upstream! ;(
67471 + */
67472 + if (is_fs_load && !strcmp(name, "register_filesystem"))
67473 + register_filesystem_found = 1;
67474 +#endif
67475 +
67476 switch (sym[i].st_shndx) {
67477 case SHN_COMMON:
67478 /* We compiled with -fno-common. These are not
67479 @@ -1922,7 +1949,9 @@ static int simplify_symbols(struct module *mod, const struct load_info *info)
67480 ksym = resolve_symbol_wait(mod, info, name);
67481 /* Ok if resolved. */
67482 if (ksym && !IS_ERR(ksym)) {
67483 + pax_open_kernel();
67484 sym[i].st_value = ksym->value;
67485 + pax_close_kernel();
67486 break;
67487 }
67488
67489 @@ -1941,11 +1970,20 @@ static int simplify_symbols(struct module *mod, const struct load_info *info)
67490 secbase = (unsigned long)mod_percpu(mod);
67491 else
67492 secbase = info->sechdrs[sym[i].st_shndx].sh_addr;
67493 + pax_open_kernel();
67494 sym[i].st_value += secbase;
67495 + pax_close_kernel();
67496 break;
67497 }
67498 }
67499
67500 +#ifdef CONFIG_GRKERNSEC_MODHARDEN
67501 + if (is_fs_load && !register_filesystem_found) {
67502 + printk(KERN_ALERT "grsec: Denied attempt to load non-fs module %.64s through mount\n", mod->name);
67503 + ret = -EPERM;
67504 + }
67505 +#endif
67506 +
67507 return ret;
67508 }
67509
67510 @@ -2049,22 +2087,12 @@ static void layout_sections(struct module *mod, struct load_info *info)
67511 || s->sh_entsize != ~0UL
67512 || strstarts(sname, ".init"))
67513 continue;
67514 - s->sh_entsize = get_offset(mod, &mod->core_size, s, i);
67515 + if ((s->sh_flags & SHF_WRITE) || !(s->sh_flags & SHF_ALLOC))
67516 + s->sh_entsize = get_offset(mod, &mod->core_size_rw, s, i);
67517 + else
67518 + s->sh_entsize = get_offset(mod, &mod->core_size_rx, s, i);
67519 pr_debug("\t%s\n", sname);
67520 }
67521 - switch (m) {
67522 - case 0: /* executable */
67523 - mod->core_size = debug_align(mod->core_size);
67524 - mod->core_text_size = mod->core_size;
67525 - break;
67526 - case 1: /* RO: text and ro-data */
67527 - mod->core_size = debug_align(mod->core_size);
67528 - mod->core_ro_size = mod->core_size;
67529 - break;
67530 - case 3: /* whole core */
67531 - mod->core_size = debug_align(mod->core_size);
67532 - break;
67533 - }
67534 }
67535
67536 pr_debug("Init section allocation order:\n");
67537 @@ -2078,23 +2106,13 @@ static void layout_sections(struct module *mod, struct load_info *info)
67538 || s->sh_entsize != ~0UL
67539 || !strstarts(sname, ".init"))
67540 continue;
67541 - s->sh_entsize = (get_offset(mod, &mod->init_size, s, i)
67542 - | INIT_OFFSET_MASK);
67543 + if ((s->sh_flags & SHF_WRITE) || !(s->sh_flags & SHF_ALLOC))
67544 + s->sh_entsize = get_offset(mod, &mod->init_size_rw, s, i);
67545 + else
67546 + s->sh_entsize = get_offset(mod, &mod->init_size_rx, s, i);
67547 + s->sh_entsize |= INIT_OFFSET_MASK;
67548 pr_debug("\t%s\n", sname);
67549 }
67550 - switch (m) {
67551 - case 0: /* executable */
67552 - mod->init_size = debug_align(mod->init_size);
67553 - mod->init_text_size = mod->init_size;
67554 - break;
67555 - case 1: /* RO: text and ro-data */
67556 - mod->init_size = debug_align(mod->init_size);
67557 - mod->init_ro_size = mod->init_size;
67558 - break;
67559 - case 3: /* whole init */
67560 - mod->init_size = debug_align(mod->init_size);
67561 - break;
67562 - }
67563 }
67564 }
67565
67566 @@ -2266,7 +2284,7 @@ static void layout_symtab(struct module *mod, struct load_info *info)
67567
67568 /* Put symbol section at end of init part of module. */
67569 symsect->sh_flags |= SHF_ALLOC;
67570 - symsect->sh_entsize = get_offset(mod, &mod->init_size, symsect,
67571 + symsect->sh_entsize = get_offset(mod, &mod->init_size_rx, symsect,
67572 info->index.sym) | INIT_OFFSET_MASK;
67573 pr_debug("\t%s\n", info->secstrings + symsect->sh_name);
67574
67575 @@ -2281,13 +2299,13 @@ static void layout_symtab(struct module *mod, struct load_info *info)
67576 }
67577
67578 /* Append room for core symbols at end of core part. */
67579 - info->symoffs = ALIGN(mod->core_size, symsect->sh_addralign ?: 1);
67580 - info->stroffs = mod->core_size = info->symoffs + ndst * sizeof(Elf_Sym);
67581 - mod->core_size += strtab_size;
67582 + info->symoffs = ALIGN(mod->core_size_rx, symsect->sh_addralign ?: 1);
67583 + info->stroffs = mod->core_size_rx = info->symoffs + ndst * sizeof(Elf_Sym);
67584 + mod->core_size_rx += strtab_size;
67585
67586 /* Put string table section at end of init part of module. */
67587 strsect->sh_flags |= SHF_ALLOC;
67588 - strsect->sh_entsize = get_offset(mod, &mod->init_size, strsect,
67589 + strsect->sh_entsize = get_offset(mod, &mod->init_size_rx, strsect,
67590 info->index.str) | INIT_OFFSET_MASK;
67591 pr_debug("\t%s\n", info->secstrings + strsect->sh_name);
67592 }
67593 @@ -2305,12 +2323,14 @@ static void add_kallsyms(struct module *mod, const struct load_info *info)
67594 /* Make sure we get permanent strtab: don't use info->strtab. */
67595 mod->strtab = (void *)info->sechdrs[info->index.str].sh_addr;
67596
67597 + pax_open_kernel();
67598 +
67599 /* Set types up while we still have access to sections. */
67600 for (i = 0; i < mod->num_symtab; i++)
67601 mod->symtab[i].st_info = elf_type(&mod->symtab[i], info);
67602
67603 - mod->core_symtab = dst = mod->module_core + info->symoffs;
67604 - mod->core_strtab = s = mod->module_core + info->stroffs;
67605 + mod->core_symtab = dst = mod->module_core_rx + info->symoffs;
67606 + mod->core_strtab = s = mod->module_core_rx + info->stroffs;
67607 src = mod->symtab;
67608 *dst = *src;
67609 *s++ = 0;
67610 @@ -2323,6 +2343,8 @@ static void add_kallsyms(struct module *mod, const struct load_info *info)
67611 s += strlcpy(s, &mod->strtab[src->st_name], KSYM_NAME_LEN) + 1;
67612 }
67613 mod->core_num_syms = ndst;
67614 +
67615 + pax_close_kernel();
67616 }
67617 #else
67618 static inline void layout_symtab(struct module *mod, struct load_info *info)
67619 @@ -2356,17 +2378,33 @@ void * __weak module_alloc(unsigned long size)
67620 return size == 0 ? NULL : vmalloc_exec(size);
67621 }
67622
67623 -static void *module_alloc_update_bounds(unsigned long size)
67624 +static void *module_alloc_update_bounds_rw(unsigned long size)
67625 {
67626 void *ret = module_alloc(size);
67627
67628 if (ret) {
67629 mutex_lock(&module_mutex);
67630 /* Update module bounds. */
67631 - if ((unsigned long)ret < module_addr_min)
67632 - module_addr_min = (unsigned long)ret;
67633 - if ((unsigned long)ret + size > module_addr_max)
67634 - module_addr_max = (unsigned long)ret + size;
67635 + if ((unsigned long)ret < module_addr_min_rw)
67636 + module_addr_min_rw = (unsigned long)ret;
67637 + if ((unsigned long)ret + size > module_addr_max_rw)
67638 + module_addr_max_rw = (unsigned long)ret + size;
67639 + mutex_unlock(&module_mutex);
67640 + }
67641 + return ret;
67642 +}
67643 +
67644 +static void *module_alloc_update_bounds_rx(unsigned long size)
67645 +{
67646 + void *ret = module_alloc_exec(size);
67647 +
67648 + if (ret) {
67649 + mutex_lock(&module_mutex);
67650 + /* Update module bounds. */
67651 + if ((unsigned long)ret < module_addr_min_rx)
67652 + module_addr_min_rx = (unsigned long)ret;
67653 + if ((unsigned long)ret + size > module_addr_max_rx)
67654 + module_addr_max_rx = (unsigned long)ret + size;
67655 mutex_unlock(&module_mutex);
67656 }
67657 return ret;
67658 @@ -2544,8 +2582,14 @@ static struct module *setup_load_info(struct load_info *info)
67659 static int check_modinfo(struct module *mod, struct load_info *info)
67660 {
67661 const char *modmagic = get_modinfo(info, "vermagic");
67662 + const char *license = get_modinfo(info, "license");
67663 int err;
67664
67665 +#ifdef CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_OR
67666 + if (!license || !license_is_gpl_compatible(license))
67667 + return -ENOEXEC;
67668 +#endif
67669 +
67670 /* This is allowed: modprobe --force will invalidate it. */
67671 if (!modmagic) {
67672 err = try_to_force_load(mod, "bad vermagic");
67673 @@ -2568,7 +2612,7 @@ static int check_modinfo(struct module *mod, struct load_info *info)
67674 }
67675
67676 /* Set up license info based on the info section */
67677 - set_license(mod, get_modinfo(info, "license"));
67678 + set_license(mod, license);
67679
67680 return 0;
67681 }
67682 @@ -2662,7 +2706,7 @@ static int move_module(struct module *mod, struct load_info *info)
67683 void *ptr;
67684
67685 /* Do the allocs. */
67686 - ptr = module_alloc_update_bounds(mod->core_size);
67687 + ptr = module_alloc_update_bounds_rw(mod->core_size_rw);
67688 /*
67689 * The pointer to this block is stored in the module structure
67690 * which is inside the block. Just mark it as not being a
67691 @@ -2672,23 +2716,50 @@ static int move_module(struct module *mod, struct load_info *info)
67692 if (!ptr)
67693 return -ENOMEM;
67694
67695 - memset(ptr, 0, mod->core_size);
67696 - mod->module_core = ptr;
67697 + memset(ptr, 0, mod->core_size_rw);
67698 + mod->module_core_rw = ptr;
67699
67700 - ptr = module_alloc_update_bounds(mod->init_size);
67701 + ptr = module_alloc_update_bounds_rw(mod->init_size_rw);
67702 /*
67703 * The pointer to this block is stored in the module structure
67704 * which is inside the block. This block doesn't need to be
67705 * scanned as it contains data and code that will be freed
67706 * after the module is initialized.
67707 */
67708 - kmemleak_ignore(ptr);
67709 - if (!ptr && mod->init_size) {
67710 - module_free(mod, mod->module_core);
67711 + kmemleak_not_leak(ptr);
67712 + if (!ptr && mod->init_size_rw) {
67713 + module_free(mod, mod->module_core_rw);
67714 return -ENOMEM;
67715 }
67716 - memset(ptr, 0, mod->init_size);
67717 - mod->module_init = ptr;
67718 + memset(ptr, 0, mod->init_size_rw);
67719 + mod->module_init_rw = ptr;
67720 +
67721 + ptr = module_alloc_update_bounds_rx(mod->core_size_rx);
67722 + kmemleak_not_leak(ptr);
67723 + if (!ptr) {
67724 + module_free(mod, mod->module_init_rw);
67725 + module_free(mod, mod->module_core_rw);
67726 + return -ENOMEM;
67727 + }
67728 +
67729 + pax_open_kernel();
67730 + memset(ptr, 0, mod->core_size_rx);
67731 + pax_close_kernel();
67732 + mod->module_core_rx = ptr;
67733 +
67734 + ptr = module_alloc_update_bounds_rx(mod->init_size_rx);
67735 + kmemleak_not_leak(ptr);
67736 + if (!ptr && mod->init_size_rx) {
67737 + module_free_exec(mod, mod->module_core_rx);
67738 + module_free(mod, mod->module_init_rw);
67739 + module_free(mod, mod->module_core_rw);
67740 + return -ENOMEM;
67741 + }
67742 +
67743 + pax_open_kernel();
67744 + memset(ptr, 0, mod->init_size_rx);
67745 + pax_close_kernel();
67746 + mod->module_init_rx = ptr;
67747
67748 /* Transfer each section which specifies SHF_ALLOC */
67749 pr_debug("final section addresses:\n");
67750 @@ -2699,16 +2770,45 @@ static int move_module(struct module *mod, struct load_info *info)
67751 if (!(shdr->sh_flags & SHF_ALLOC))
67752 continue;
67753
67754 - if (shdr->sh_entsize & INIT_OFFSET_MASK)
67755 - dest = mod->module_init
67756 - + (shdr->sh_entsize & ~INIT_OFFSET_MASK);
67757 - else
67758 - dest = mod->module_core + shdr->sh_entsize;
67759 + if (shdr->sh_entsize & INIT_OFFSET_MASK) {
67760 + if ((shdr->sh_flags & SHF_WRITE) || !(shdr->sh_flags & SHF_ALLOC))
67761 + dest = mod->module_init_rw
67762 + + (shdr->sh_entsize & ~INIT_OFFSET_MASK);
67763 + else
67764 + dest = mod->module_init_rx
67765 + + (shdr->sh_entsize & ~INIT_OFFSET_MASK);
67766 + } else {
67767 + if ((shdr->sh_flags & SHF_WRITE) || !(shdr->sh_flags & SHF_ALLOC))
67768 + dest = mod->module_core_rw + shdr->sh_entsize;
67769 + else
67770 + dest = mod->module_core_rx + shdr->sh_entsize;
67771 + }
67772 +
67773 + if (shdr->sh_type != SHT_NOBITS) {
67774 +
67775 +#ifdef CONFIG_PAX_KERNEXEC
67776 +#ifdef CONFIG_X86_64
67777 + if ((shdr->sh_flags & SHF_WRITE) && (shdr->sh_flags & SHF_EXECINSTR))
67778 + set_memory_x((unsigned long)dest, (shdr->sh_size + PAGE_SIZE) >> PAGE_SHIFT);
67779 +#endif
67780 + if (!(shdr->sh_flags & SHF_WRITE) && (shdr->sh_flags & SHF_ALLOC)) {
67781 + pax_open_kernel();
67782 + memcpy(dest, (void *)shdr->sh_addr, shdr->sh_size);
67783 + pax_close_kernel();
67784 + } else
67785 +#endif
67786
67787 - if (shdr->sh_type != SHT_NOBITS)
67788 memcpy(dest, (void *)shdr->sh_addr, shdr->sh_size);
67789 + }
67790 /* Update sh_addr to point to copy in image. */
67791 - shdr->sh_addr = (unsigned long)dest;
67792 +
67793 +#ifdef CONFIG_PAX_KERNEXEC
67794 + if (shdr->sh_flags & SHF_EXECINSTR)
67795 + shdr->sh_addr = ktva_ktla((unsigned long)dest);
67796 + else
67797 +#endif
67798 +
67799 + shdr->sh_addr = (unsigned long)dest;
67800 pr_debug("\t0x%lx %s\n",
67801 (long)shdr->sh_addr, info->secstrings + shdr->sh_name);
67802 }
67803 @@ -2759,12 +2859,12 @@ static void flush_module_icache(const struct module *mod)
67804 * Do it before processing of module parameters, so the module
67805 * can provide parameter accessor functions of its own.
67806 */
67807 - if (mod->module_init)
67808 - flush_icache_range((unsigned long)mod->module_init,
67809 - (unsigned long)mod->module_init
67810 - + mod->init_size);
67811 - flush_icache_range((unsigned long)mod->module_core,
67812 - (unsigned long)mod->module_core + mod->core_size);
67813 + if (mod->module_init_rx)
67814 + flush_icache_range((unsigned long)mod->module_init_rx,
67815 + (unsigned long)mod->module_init_rx
67816 + + mod->init_size_rx);
67817 + flush_icache_range((unsigned long)mod->module_core_rx,
67818 + (unsigned long)mod->module_core_rx + mod->core_size_rx);
67819
67820 set_fs(old_fs);
67821 }
67822 @@ -2834,8 +2934,10 @@ out:
67823 static void module_deallocate(struct module *mod, struct load_info *info)
67824 {
67825 percpu_modfree(mod);
67826 - module_free(mod, mod->module_init);
67827 - module_free(mod, mod->module_core);
67828 + module_free_exec(mod, mod->module_init_rx);
67829 + module_free_exec(mod, mod->module_core_rx);
67830 + module_free(mod, mod->module_init_rw);
67831 + module_free(mod, mod->module_core_rw);
67832 }
67833
67834 int __weak module_finalize(const Elf_Ehdr *hdr,
67835 @@ -2848,7 +2950,9 @@ int __weak module_finalize(const Elf_Ehdr *hdr,
67836 static int post_relocation(struct module *mod, const struct load_info *info)
67837 {
67838 /* Sort exception table now relocations are done. */
67839 + pax_open_kernel();
67840 sort_extable(mod->extable, mod->extable + mod->num_exentries);
67841 + pax_close_kernel();
67842
67843 /* Copy relocated percpu area over. */
67844 percpu_modcopy(mod, (void *)info->sechdrs[info->index.pcpu].sh_addr,
67845 @@ -2899,9 +3003,38 @@ static struct module *load_module(void __user *umod,
67846 if (err)
67847 goto free_unload;
67848
67849 + /* Now copy in args */
67850 + mod->args = strndup_user(uargs, ~0UL >> 1);
67851 + if (IS_ERR(mod->args)) {
67852 + err = PTR_ERR(mod->args);
67853 + goto free_unload;
67854 + }
67855 +
67856 /* Set up MODINFO_ATTR fields */
67857 setup_modinfo(mod, &info);
67858
67859 +#ifdef CONFIG_GRKERNSEC_MODHARDEN
67860 + {
67861 + char *p, *p2;
67862 +
67863 + if (strstr(mod->args, "grsec_modharden_netdev")) {
67864 + 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);
67865 + err = -EPERM;
67866 + goto free_modinfo;
67867 + } else if ((p = strstr(mod->args, "grsec_modharden_normal"))) {
67868 + p += strlen("grsec_modharden_normal");
67869 + p2 = strstr(p, "_");
67870 + if (p2) {
67871 + *p2 = '\0';
67872 + printk(KERN_ALERT "grsec: denied kernel module auto-load of %.64s by uid %.9s\n", mod->name, p);
67873 + *p2 = '_';
67874 + }
67875 + err = -EPERM;
67876 + goto free_modinfo;
67877 + }
67878 + }
67879 +#endif
67880 +
67881 /* Fix up syms, so that st_value is a pointer to location. */
67882 err = simplify_symbols(mod, &info);
67883 if (err < 0)
67884 @@ -2917,13 +3050,6 @@ static struct module *load_module(void __user *umod,
67885
67886 flush_module_icache(mod);
67887
67888 - /* Now copy in args */
67889 - mod->args = strndup_user(uargs, ~0UL >> 1);
67890 - if (IS_ERR(mod->args)) {
67891 - err = PTR_ERR(mod->args);
67892 - goto free_arch_cleanup;
67893 - }
67894 -
67895 /* Mark state as coming so strong_try_module_get() ignores us. */
67896 mod->state = MODULE_STATE_COMING;
67897
67898 @@ -2981,11 +3107,10 @@ static struct module *load_module(void __user *umod,
67899 unlock:
67900 mutex_unlock(&module_mutex);
67901 synchronize_sched();
67902 - kfree(mod->args);
67903 - free_arch_cleanup:
67904 module_arch_cleanup(mod);
67905 free_modinfo:
67906 free_modinfo(mod);
67907 + kfree(mod->args);
67908 free_unload:
67909 module_unload_free(mod);
67910 free_module:
67911 @@ -3026,16 +3151,16 @@ SYSCALL_DEFINE3(init_module, void __user *, umod,
67912 MODULE_STATE_COMING, mod);
67913
67914 /* Set RO and NX regions for core */
67915 - set_section_ro_nx(mod->module_core,
67916 - mod->core_text_size,
67917 - mod->core_ro_size,
67918 - mod->core_size);
67919 + set_section_ro_nx(mod->module_core_rx,
67920 + mod->core_size_rx,
67921 + mod->core_size_rx,
67922 + mod->core_size_rx);
67923
67924 /* Set RO and NX regions for init */
67925 - set_section_ro_nx(mod->module_init,
67926 - mod->init_text_size,
67927 - mod->init_ro_size,
67928 - mod->init_size);
67929 + set_section_ro_nx(mod->module_init_rx,
67930 + mod->init_size_rx,
67931 + mod->init_size_rx,
67932 + mod->init_size_rx);
67933
67934 do_mod_ctors(mod);
67935 /* Start the module */
67936 @@ -3081,11 +3206,12 @@ SYSCALL_DEFINE3(init_module, void __user *, umod,
67937 mod->strtab = mod->core_strtab;
67938 #endif
67939 unset_module_init_ro_nx(mod);
67940 - module_free(mod, mod->module_init);
67941 - mod->module_init = NULL;
67942 - mod->init_size = 0;
67943 - mod->init_ro_size = 0;
67944 - mod->init_text_size = 0;
67945 + module_free(mod, mod->module_init_rw);
67946 + module_free_exec(mod, mod->module_init_rx);
67947 + mod->module_init_rw = NULL;
67948 + mod->module_init_rx = NULL;
67949 + mod->init_size_rw = 0;
67950 + mod->init_size_rx = 0;
67951 mutex_unlock(&module_mutex);
67952
67953 return 0;
67954 @@ -3116,10 +3242,16 @@ static const char *get_ksymbol(struct module *mod,
67955 unsigned long nextval;
67956
67957 /* At worse, next value is at end of module */
67958 - if (within_module_init(addr, mod))
67959 - nextval = (unsigned long)mod->module_init+mod->init_text_size;
67960 + if (within_module_init_rx(addr, mod))
67961 + nextval = (unsigned long)mod->module_init_rx+mod->init_size_rx;
67962 + else if (within_module_init_rw(addr, mod))
67963 + nextval = (unsigned long)mod->module_init_rw+mod->init_size_rw;
67964 + else if (within_module_core_rx(addr, mod))
67965 + nextval = (unsigned long)mod->module_core_rx+mod->core_size_rx;
67966 + else if (within_module_core_rw(addr, mod))
67967 + nextval = (unsigned long)mod->module_core_rw+mod->core_size_rw;
67968 else
67969 - nextval = (unsigned long)mod->module_core+mod->core_text_size;
67970 + return NULL;
67971
67972 /* Scan for closest preceding symbol, and next symbol. (ELF
67973 starts real symbols at 1). */
67974 @@ -3354,7 +3486,7 @@ static int m_show(struct seq_file *m, void *p)
67975 char buf[8];
67976
67977 seq_printf(m, "%s %u",
67978 - mod->name, mod->init_size + mod->core_size);
67979 + mod->name, mod->init_size_rx + mod->init_size_rw + mod->core_size_rx + mod->core_size_rw);
67980 print_unload_info(m, mod);
67981
67982 /* Informative for users. */
67983 @@ -3363,7 +3495,7 @@ static int m_show(struct seq_file *m, void *p)
67984 mod->state == MODULE_STATE_COMING ? "Loading":
67985 "Live");
67986 /* Used by oprofile and other similar tools. */
67987 - seq_printf(m, " 0x%pK", mod->module_core);
67988 + seq_printf(m, " 0x%pK 0x%pK", mod->module_core_rx, mod->module_core_rw);
67989
67990 /* Taints info */
67991 if (mod->taints)
67992 @@ -3399,7 +3531,17 @@ static const struct file_operations proc_modules_operations = {
67993
67994 static int __init proc_modules_init(void)
67995 {
67996 +#ifndef CONFIG_GRKERNSEC_HIDESYM
67997 +#ifdef CONFIG_GRKERNSEC_PROC_USER
67998 + proc_create("modules", S_IRUSR, NULL, &proc_modules_operations);
67999 +#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
68000 + proc_create("modules", S_IRUSR | S_IRGRP, NULL, &proc_modules_operations);
68001 +#else
68002 proc_create("modules", 0, NULL, &proc_modules_operations);
68003 +#endif
68004 +#else
68005 + proc_create("modules", S_IRUSR, NULL, &proc_modules_operations);
68006 +#endif
68007 return 0;
68008 }
68009 module_init(proc_modules_init);
68010 @@ -3458,12 +3600,12 @@ struct module *__module_address(unsigned long addr)
68011 {
68012 struct module *mod;
68013
68014 - if (addr < module_addr_min || addr > module_addr_max)
68015 + if ((addr < module_addr_min_rx || addr > module_addr_max_rx) &&
68016 + (addr < module_addr_min_rw || addr > module_addr_max_rw))
68017 return NULL;
68018
68019 list_for_each_entry_rcu(mod, &modules, list)
68020 - if (within_module_core(addr, mod)
68021 - || within_module_init(addr, mod))
68022 + if (within_module_init(addr, mod) || within_module_core(addr, mod))
68023 return mod;
68024 return NULL;
68025 }
68026 @@ -3497,11 +3639,20 @@ bool is_module_text_address(unsigned long addr)
68027 */
68028 struct module *__module_text_address(unsigned long addr)
68029 {
68030 - struct module *mod = __module_address(addr);
68031 + struct module *mod;
68032 +
68033 +#ifdef CONFIG_X86_32
68034 + addr = ktla_ktva(addr);
68035 +#endif
68036 +
68037 + if (addr < module_addr_min_rx || addr > module_addr_max_rx)
68038 + return NULL;
68039 +
68040 + mod = __module_address(addr);
68041 +
68042 if (mod) {
68043 /* Make sure it's within the text section. */
68044 - if (!within(addr, mod->module_init, mod->init_text_size)
68045 - && !within(addr, mod->module_core, mod->core_text_size))
68046 + if (!within_module_init_rx(addr, mod) && !within_module_core_rx(addr, mod))
68047 mod = NULL;
68048 }
68049 return mod;
68050 diff --git a/kernel/mutex-debug.c b/kernel/mutex-debug.c
68051 index 7e3443f..b2a1e6b 100644
68052 --- a/kernel/mutex-debug.c
68053 +++ b/kernel/mutex-debug.c
68054 @@ -49,21 +49,21 @@ void debug_mutex_free_waiter(struct mutex_waiter *waiter)
68055 }
68056
68057 void debug_mutex_add_waiter(struct mutex *lock, struct mutex_waiter *waiter,
68058 - struct thread_info *ti)
68059 + struct task_struct *task)
68060 {
68061 SMP_DEBUG_LOCKS_WARN_ON(!spin_is_locked(&lock->wait_lock));
68062
68063 /* Mark the current thread as blocked on the lock: */
68064 - ti->task->blocked_on = waiter;
68065 + task->blocked_on = waiter;
68066 }
68067
68068 void mutex_remove_waiter(struct mutex *lock, struct mutex_waiter *waiter,
68069 - struct thread_info *ti)
68070 + struct task_struct *task)
68071 {
68072 DEBUG_LOCKS_WARN_ON(list_empty(&waiter->list));
68073 - DEBUG_LOCKS_WARN_ON(waiter->task != ti->task);
68074 - DEBUG_LOCKS_WARN_ON(ti->task->blocked_on != waiter);
68075 - ti->task->blocked_on = NULL;
68076 + DEBUG_LOCKS_WARN_ON(waiter->task != task);
68077 + DEBUG_LOCKS_WARN_ON(task->blocked_on != waiter);
68078 + task->blocked_on = NULL;
68079
68080 list_del_init(&waiter->list);
68081 waiter->task = NULL;
68082 diff --git a/kernel/mutex-debug.h b/kernel/mutex-debug.h
68083 index 0799fd3..d06ae3b 100644
68084 --- a/kernel/mutex-debug.h
68085 +++ b/kernel/mutex-debug.h
68086 @@ -20,9 +20,9 @@ extern void debug_mutex_wake_waiter(struct mutex *lock,
68087 extern void debug_mutex_free_waiter(struct mutex_waiter *waiter);
68088 extern void debug_mutex_add_waiter(struct mutex *lock,
68089 struct mutex_waiter *waiter,
68090 - struct thread_info *ti);
68091 + struct task_struct *task);
68092 extern void mutex_remove_waiter(struct mutex *lock, struct mutex_waiter *waiter,
68093 - struct thread_info *ti);
68094 + struct task_struct *task);
68095 extern void debug_mutex_unlock(struct mutex *lock);
68096 extern void debug_mutex_init(struct mutex *lock, const char *name,
68097 struct lock_class_key *key);
68098 diff --git a/kernel/mutex.c b/kernel/mutex.c
68099 index a307cc9..27fd2e9 100644
68100 --- a/kernel/mutex.c
68101 +++ b/kernel/mutex.c
68102 @@ -198,7 +198,7 @@ __mutex_lock_common(struct mutex *lock, long state, unsigned int subclass,
68103 spin_lock_mutex(&lock->wait_lock, flags);
68104
68105 debug_mutex_lock_common(lock, &waiter);
68106 - debug_mutex_add_waiter(lock, &waiter, task_thread_info(task));
68107 + debug_mutex_add_waiter(lock, &waiter, task);
68108
68109 /* add waiting tasks to the end of the waitqueue (FIFO): */
68110 list_add_tail(&waiter.list, &lock->wait_list);
68111 @@ -227,8 +227,7 @@ __mutex_lock_common(struct mutex *lock, long state, unsigned int subclass,
68112 * TASK_UNINTERRUPTIBLE case.)
68113 */
68114 if (unlikely(signal_pending_state(state, task))) {
68115 - mutex_remove_waiter(lock, &waiter,
68116 - task_thread_info(task));
68117 + mutex_remove_waiter(lock, &waiter, task);
68118 mutex_release(&lock->dep_map, 1, ip);
68119 spin_unlock_mutex(&lock->wait_lock, flags);
68120
68121 @@ -247,7 +246,7 @@ __mutex_lock_common(struct mutex *lock, long state, unsigned int subclass,
68122 done:
68123 lock_acquired(&lock->dep_map, ip);
68124 /* got the lock - rejoice! */
68125 - mutex_remove_waiter(lock, &waiter, current_thread_info());
68126 + mutex_remove_waiter(lock, &waiter, task);
68127 mutex_set_owner(lock);
68128
68129 /* set it to 0 if there are no waiters left: */
68130 diff --git a/kernel/panic.c b/kernel/panic.c
68131 index d2a5f4e..5edc1d9 100644
68132 --- a/kernel/panic.c
68133 +++ b/kernel/panic.c
68134 @@ -75,6 +75,14 @@ void panic(const char *fmt, ...)
68135 int state = 0;
68136
68137 /*
68138 + * Disable local interrupts. This will prevent panic_smp_self_stop
68139 + * from deadlocking the first cpu that invokes the panic, since
68140 + * there is nothing to prevent an interrupt handler (that runs
68141 + * after the panic_lock is acquired) from invoking panic again.
68142 + */
68143 + local_irq_disable();
68144 +
68145 + /*
68146 * It's possible to come here directly from a panic-assertion and
68147 * not have preempt disabled. Some functions called from here want
68148 * preempt to be disabled. No point enabling it later though...
68149 @@ -402,7 +410,7 @@ static void warn_slowpath_common(const char *file, int line, void *caller,
68150 const char *board;
68151
68152 printk(KERN_WARNING "------------[ cut here ]------------\n");
68153 - printk(KERN_WARNING "WARNING: at %s:%d %pS()\n", file, line, caller);
68154 + printk(KERN_WARNING "WARNING: at %s:%d %pA()\n", file, line, caller);
68155 board = dmi_get_system_info(DMI_PRODUCT_NAME);
68156 if (board)
68157 printk(KERN_WARNING "Hardware name: %s\n", board);
68158 @@ -457,7 +465,8 @@ EXPORT_SYMBOL(warn_slowpath_null);
68159 */
68160 void __stack_chk_fail(void)
68161 {
68162 - panic("stack-protector: Kernel stack is corrupted in: %p\n",
68163 + dump_stack();
68164 + panic("stack-protector: Kernel stack is corrupted in: %pA\n",
68165 __builtin_return_address(0));
68166 }
68167 EXPORT_SYMBOL(__stack_chk_fail);
68168 diff --git a/kernel/pid.c b/kernel/pid.c
68169 index e86b291a..e8b0fb5 100644
68170 --- a/kernel/pid.c
68171 +++ b/kernel/pid.c
68172 @@ -33,6 +33,7 @@
68173 #include <linux/rculist.h>
68174 #include <linux/bootmem.h>
68175 #include <linux/hash.h>
68176 +#include <linux/security.h>
68177 #include <linux/pid_namespace.h>
68178 #include <linux/init_task.h>
68179 #include <linux/syscalls.h>
68180 @@ -45,7 +46,7 @@ struct pid init_struct_pid = INIT_STRUCT_PID;
68181
68182 int pid_max = PID_MAX_DEFAULT;
68183
68184 -#define RESERVED_PIDS 300
68185 +#define RESERVED_PIDS 500
68186
68187 int pid_max_min = RESERVED_PIDS + 1;
68188 int pid_max_max = PID_MAX_LIMIT;
68189 @@ -420,10 +421,18 @@ EXPORT_SYMBOL(pid_task);
68190 */
68191 struct task_struct *find_task_by_pid_ns(pid_t nr, struct pid_namespace *ns)
68192 {
68193 + struct task_struct *task;
68194 +
68195 rcu_lockdep_assert(rcu_read_lock_held(),
68196 "find_task_by_pid_ns() needs rcu_read_lock()"
68197 " protection");
68198 - return pid_task(find_pid_ns(nr, ns), PIDTYPE_PID);
68199 +
68200 + task = pid_task(find_pid_ns(nr, ns), PIDTYPE_PID);
68201 +
68202 + if (gr_pid_is_chrooted(task))
68203 + return NULL;
68204 +
68205 + return task;
68206 }
68207
68208 struct task_struct *find_task_by_vpid(pid_t vnr)
68209 @@ -431,6 +440,14 @@ struct task_struct *find_task_by_vpid(pid_t vnr)
68210 return find_task_by_pid_ns(vnr, current->nsproxy->pid_ns);
68211 }
68212
68213 +struct task_struct *find_task_by_vpid_unrestricted(pid_t vnr)
68214 +{
68215 + rcu_lockdep_assert(rcu_read_lock_held(),
68216 + "find_task_by_pid_ns() needs rcu_read_lock()"
68217 + " protection");
68218 + return pid_task(find_pid_ns(vnr, current->nsproxy->pid_ns), PIDTYPE_PID);
68219 +}
68220 +
68221 struct pid *get_task_pid(struct task_struct *task, enum pid_type type)
68222 {
68223 struct pid *pid;
68224 diff --git a/kernel/posix-cpu-timers.c b/kernel/posix-cpu-timers.c
68225 index 125cb67..a4d1c30 100644
68226 --- a/kernel/posix-cpu-timers.c
68227 +++ b/kernel/posix-cpu-timers.c
68228 @@ -6,6 +6,7 @@
68229 #include <linux/posix-timers.h>
68230 #include <linux/errno.h>
68231 #include <linux/math64.h>
68232 +#include <linux/security.h>
68233 #include <asm/uaccess.h>
68234 #include <linux/kernel_stat.h>
68235 #include <trace/events/timer.h>
68236 @@ -1578,14 +1579,14 @@ struct k_clock clock_posix_cpu = {
68237
68238 static __init int init_posix_cpu_timers(void)
68239 {
68240 - struct k_clock process = {
68241 + static struct k_clock process = {
68242 .clock_getres = process_cpu_clock_getres,
68243 .clock_get = process_cpu_clock_get,
68244 .timer_create = process_cpu_timer_create,
68245 .nsleep = process_cpu_nsleep,
68246 .nsleep_restart = process_cpu_nsleep_restart,
68247 };
68248 - struct k_clock thread = {
68249 + static struct k_clock thread = {
68250 .clock_getres = thread_cpu_clock_getres,
68251 .clock_get = thread_cpu_clock_get,
68252 .timer_create = thread_cpu_timer_create,
68253 diff --git a/kernel/posix-timers.c b/kernel/posix-timers.c
68254 index 69185ae..cc2847a 100644
68255 --- a/kernel/posix-timers.c
68256 +++ b/kernel/posix-timers.c
68257 @@ -43,6 +43,7 @@
68258 #include <linux/idr.h>
68259 #include <linux/posix-clock.h>
68260 #include <linux/posix-timers.h>
68261 +#include <linux/grsecurity.h>
68262 #include <linux/syscalls.h>
68263 #include <linux/wait.h>
68264 #include <linux/workqueue.h>
68265 @@ -129,7 +130,7 @@ static DEFINE_SPINLOCK(idr_lock);
68266 * which we beg off on and pass to do_sys_settimeofday().
68267 */
68268
68269 -static struct k_clock posix_clocks[MAX_CLOCKS];
68270 +static struct k_clock *posix_clocks[MAX_CLOCKS];
68271
68272 /*
68273 * These ones are defined below.
68274 @@ -227,7 +228,7 @@ static int posix_get_boottime(const clockid_t which_clock, struct timespec *tp)
68275 */
68276 static __init int init_posix_timers(void)
68277 {
68278 - struct k_clock clock_realtime = {
68279 + static struct k_clock clock_realtime = {
68280 .clock_getres = hrtimer_get_res,
68281 .clock_get = posix_clock_realtime_get,
68282 .clock_set = posix_clock_realtime_set,
68283 @@ -239,7 +240,7 @@ static __init int init_posix_timers(void)
68284 .timer_get = common_timer_get,
68285 .timer_del = common_timer_del,
68286 };
68287 - struct k_clock clock_monotonic = {
68288 + static struct k_clock clock_monotonic = {
68289 .clock_getres = hrtimer_get_res,
68290 .clock_get = posix_ktime_get_ts,
68291 .nsleep = common_nsleep,
68292 @@ -249,19 +250,19 @@ static __init int init_posix_timers(void)
68293 .timer_get = common_timer_get,
68294 .timer_del = common_timer_del,
68295 };
68296 - struct k_clock clock_monotonic_raw = {
68297 + static struct k_clock clock_monotonic_raw = {
68298 .clock_getres = hrtimer_get_res,
68299 .clock_get = posix_get_monotonic_raw,
68300 };
68301 - struct k_clock clock_realtime_coarse = {
68302 + static struct k_clock clock_realtime_coarse = {
68303 .clock_getres = posix_get_coarse_res,
68304 .clock_get = posix_get_realtime_coarse,
68305 };
68306 - struct k_clock clock_monotonic_coarse = {
68307 + static struct k_clock clock_monotonic_coarse = {
68308 .clock_getres = posix_get_coarse_res,
68309 .clock_get = posix_get_monotonic_coarse,
68310 };
68311 - struct k_clock clock_boottime = {
68312 + static struct k_clock clock_boottime = {
68313 .clock_getres = hrtimer_get_res,
68314 .clock_get = posix_get_boottime,
68315 .nsleep = common_nsleep,
68316 @@ -473,7 +474,7 @@ void posix_timers_register_clock(const clockid_t clock_id,
68317 return;
68318 }
68319
68320 - posix_clocks[clock_id] = *new_clock;
68321 + posix_clocks[clock_id] = new_clock;
68322 }
68323 EXPORT_SYMBOL_GPL(posix_timers_register_clock);
68324
68325 @@ -519,9 +520,9 @@ static struct k_clock *clockid_to_kclock(const clockid_t id)
68326 return (id & CLOCKFD_MASK) == CLOCKFD ?
68327 &clock_posix_dynamic : &clock_posix_cpu;
68328
68329 - if (id >= MAX_CLOCKS || !posix_clocks[id].clock_getres)
68330 + if (id >= MAX_CLOCKS || !posix_clocks[id] || !posix_clocks[id]->clock_getres)
68331 return NULL;
68332 - return &posix_clocks[id];
68333 + return posix_clocks[id];
68334 }
68335
68336 static int common_timer_create(struct k_itimer *new_timer)
68337 @@ -959,6 +960,13 @@ SYSCALL_DEFINE2(clock_settime, const clockid_t, which_clock,
68338 if (copy_from_user(&new_tp, tp, sizeof (*tp)))
68339 return -EFAULT;
68340
68341 + /* only the CLOCK_REALTIME clock can be set, all other clocks
68342 + have their clock_set fptr set to a nosettime dummy function
68343 + CLOCK_REALTIME has a NULL clock_set fptr which causes it to
68344 + call common_clock_set, which calls do_sys_settimeofday, which
68345 + we hook
68346 + */
68347 +
68348 return kc->clock_set(which_clock, &new_tp);
68349 }
68350
68351 diff --git a/kernel/power/poweroff.c b/kernel/power/poweroff.c
68352 index d523593..68197a4 100644
68353 --- a/kernel/power/poweroff.c
68354 +++ b/kernel/power/poweroff.c
68355 @@ -37,7 +37,7 @@ static struct sysrq_key_op sysrq_poweroff_op = {
68356 .enable_mask = SYSRQ_ENABLE_BOOT,
68357 };
68358
68359 -static int pm_sysrq_init(void)
68360 +static int __init pm_sysrq_init(void)
68361 {
68362 register_sysrq_key('o', &sysrq_poweroff_op);
68363 return 0;
68364 diff --git a/kernel/power/process.c b/kernel/power/process.c
68365 index 19db29f..33b52b6 100644
68366 --- a/kernel/power/process.c
68367 +++ b/kernel/power/process.c
68368 @@ -33,6 +33,7 @@ static int try_to_freeze_tasks(bool user_only)
68369 u64 elapsed_csecs64;
68370 unsigned int elapsed_csecs;
68371 bool wakeup = false;
68372 + bool timedout = false;
68373
68374 do_gettimeofday(&start);
68375
68376 @@ -43,6 +44,8 @@ static int try_to_freeze_tasks(bool user_only)
68377
68378 while (true) {
68379 todo = 0;
68380 + if (time_after(jiffies, end_time))
68381 + timedout = true;
68382 read_lock(&tasklist_lock);
68383 do_each_thread(g, p) {
68384 if (p == current || !freeze_task(p))
68385 @@ -58,9 +61,13 @@ static int try_to_freeze_tasks(bool user_only)
68386 * guaranteed that TASK_STOPPED/TRACED -> TASK_RUNNING
68387 * transition can't race with task state testing here.
68388 */
68389 - if (!task_is_stopped_or_traced(p) &&
68390 - !freezer_should_skip(p))
68391 + if (!task_is_stopped_or_traced(p) && !freezer_should_skip(p)) {
68392 todo++;
68393 + if (timedout) {
68394 + printk(KERN_ERR "Task refusing to freeze:\n");
68395 + sched_show_task(p);
68396 + }
68397 + }
68398 } while_each_thread(g, p);
68399 read_unlock(&tasklist_lock);
68400
68401 @@ -69,7 +76,7 @@ static int try_to_freeze_tasks(bool user_only)
68402 todo += wq_busy;
68403 }
68404
68405 - if (!todo || time_after(jiffies, end_time))
68406 + if (!todo || timedout)
68407 break;
68408
68409 if (pm_wakeup_pending()) {
68410 diff --git a/kernel/printk.c b/kernel/printk.c
68411 index 146827f..a501fec 100644
68412 --- a/kernel/printk.c
68413 +++ b/kernel/printk.c
68414 @@ -782,6 +782,11 @@ static int check_syslog_permissions(int type, bool from_file)
68415 if (from_file && type != SYSLOG_ACTION_OPEN)
68416 return 0;
68417
68418 +#ifdef CONFIG_GRKERNSEC_DMESG
68419 + if (grsec_enable_dmesg && !capable(CAP_SYSLOG) && !capable_nolog(CAP_SYS_ADMIN))
68420 + return -EPERM;
68421 +#endif
68422 +
68423 if (syslog_action_restricted(type)) {
68424 if (capable(CAP_SYSLOG))
68425 return 0;
68426 diff --git a/kernel/profile.c b/kernel/profile.c
68427 index 76b8e77..a2930e8 100644
68428 --- a/kernel/profile.c
68429 +++ b/kernel/profile.c
68430 @@ -39,7 +39,7 @@ struct profile_hit {
68431 /* Oprofile timer tick hook */
68432 static int (*timer_hook)(struct pt_regs *) __read_mostly;
68433
68434 -static atomic_t *prof_buffer;
68435 +static atomic_unchecked_t *prof_buffer;
68436 static unsigned long prof_len, prof_shift;
68437
68438 int prof_on __read_mostly;
68439 @@ -281,7 +281,7 @@ static void profile_flip_buffers(void)
68440 hits[i].pc = 0;
68441 continue;
68442 }
68443 - atomic_add(hits[i].hits, &prof_buffer[hits[i].pc]);
68444 + atomic_add_unchecked(hits[i].hits, &prof_buffer[hits[i].pc]);
68445 hits[i].hits = hits[i].pc = 0;
68446 }
68447 }
68448 @@ -342,9 +342,9 @@ static void do_profile_hits(int type, void *__pc, unsigned int nr_hits)
68449 * Add the current hit(s) and flush the write-queue out
68450 * to the global buffer:
68451 */
68452 - atomic_add(nr_hits, &prof_buffer[pc]);
68453 + atomic_add_unchecked(nr_hits, &prof_buffer[pc]);
68454 for (i = 0; i < NR_PROFILE_HIT; ++i) {
68455 - atomic_add(hits[i].hits, &prof_buffer[hits[i].pc]);
68456 + atomic_add_unchecked(hits[i].hits, &prof_buffer[hits[i].pc]);
68457 hits[i].pc = hits[i].hits = 0;
68458 }
68459 out:
68460 @@ -419,7 +419,7 @@ static void do_profile_hits(int type, void *__pc, unsigned int nr_hits)
68461 {
68462 unsigned long pc;
68463 pc = ((unsigned long)__pc - (unsigned long)_stext) >> prof_shift;
68464 - atomic_add(nr_hits, &prof_buffer[min(pc, prof_len - 1)]);
68465 + atomic_add_unchecked(nr_hits, &prof_buffer[min(pc, prof_len - 1)]);
68466 }
68467 #endif /* !CONFIG_SMP */
68468
68469 @@ -517,7 +517,7 @@ read_profile(struct file *file, char __user *buf, size_t count, loff_t *ppos)
68470 return -EFAULT;
68471 buf++; p++; count--; read++;
68472 }
68473 - pnt = (char *)prof_buffer + p - sizeof(atomic_t);
68474 + pnt = (char *)prof_buffer + p - sizeof(atomic_unchecked_t);
68475 if (copy_to_user(buf, (void *)pnt, count))
68476 return -EFAULT;
68477 read += count;
68478 @@ -548,7 +548,7 @@ static ssize_t write_profile(struct file *file, const char __user *buf,
68479 }
68480 #endif
68481 profile_discard_flip_buffers();
68482 - memset(prof_buffer, 0, prof_len * sizeof(atomic_t));
68483 + memset(prof_buffer, 0, prof_len * sizeof(atomic_unchecked_t));
68484 return count;
68485 }
68486
68487 diff --git a/kernel/ptrace.c b/kernel/ptrace.c
68488 index a232bb5..2a65ef9 100644
68489 --- a/kernel/ptrace.c
68490 +++ b/kernel/ptrace.c
68491 @@ -279,7 +279,7 @@ static int ptrace_attach(struct task_struct *task, long request,
68492
68493 if (seize)
68494 flags |= PT_SEIZED;
68495 - if (ns_capable(task_user_ns(task), CAP_SYS_PTRACE))
68496 + if (ns_capable_nolog(task_user_ns(task), CAP_SYS_PTRACE))
68497 flags |= PT_PTRACE_CAP;
68498 task->ptrace = flags;
68499
68500 @@ -486,7 +486,7 @@ int ptrace_readdata(struct task_struct *tsk, unsigned long src, char __user *dst
68501 break;
68502 return -EIO;
68503 }
68504 - if (copy_to_user(dst, buf, retval))
68505 + if (retval > sizeof(buf) || copy_to_user(dst, buf, retval))
68506 return -EFAULT;
68507 copied += retval;
68508 src += retval;
68509 @@ -671,7 +671,7 @@ int ptrace_request(struct task_struct *child, long request,
68510 bool seized = child->ptrace & PT_SEIZED;
68511 int ret = -EIO;
68512 siginfo_t siginfo, *si;
68513 - void __user *datavp = (void __user *) data;
68514 + void __user *datavp = (__force void __user *) data;
68515 unsigned long __user *datalp = datavp;
68516 unsigned long flags;
68517
68518 @@ -873,14 +873,21 @@ SYSCALL_DEFINE4(ptrace, long, request, long, pid, unsigned long, addr,
68519 goto out;
68520 }
68521
68522 + if (gr_handle_ptrace(child, request)) {
68523 + ret = -EPERM;
68524 + goto out_put_task_struct;
68525 + }
68526 +
68527 if (request == PTRACE_ATTACH || request == PTRACE_SEIZE) {
68528 ret = ptrace_attach(child, request, addr, data);
68529 /*
68530 * Some architectures need to do book-keeping after
68531 * a ptrace attach.
68532 */
68533 - if (!ret)
68534 + if (!ret) {
68535 arch_ptrace_attach(child);
68536 + gr_audit_ptrace(child);
68537 + }
68538 goto out_put_task_struct;
68539 }
68540
68541 @@ -906,7 +913,7 @@ int generic_ptrace_peekdata(struct task_struct *tsk, unsigned long addr,
68542 copied = access_process_vm(tsk, addr, &tmp, sizeof(tmp), 0);
68543 if (copied != sizeof(tmp))
68544 return -EIO;
68545 - return put_user(tmp, (unsigned long __user *)data);
68546 + return put_user(tmp, (__force unsigned long __user *)data);
68547 }
68548
68549 int generic_ptrace_pokedata(struct task_struct *tsk, unsigned long addr,
68550 @@ -1016,14 +1023,21 @@ asmlinkage long compat_sys_ptrace(compat_long_t request, compat_long_t pid,
68551 goto out;
68552 }
68553
68554 + if (gr_handle_ptrace(child, request)) {
68555 + ret = -EPERM;
68556 + goto out_put_task_struct;
68557 + }
68558 +
68559 if (request == PTRACE_ATTACH || request == PTRACE_SEIZE) {
68560 ret = ptrace_attach(child, request, addr, data);
68561 /*
68562 * Some architectures need to do book-keeping after
68563 * a ptrace attach.
68564 */
68565 - if (!ret)
68566 + if (!ret) {
68567 arch_ptrace_attach(child);
68568 + gr_audit_ptrace(child);
68569 + }
68570 goto out_put_task_struct;
68571 }
68572
68573 diff --git a/kernel/rcutiny.c b/kernel/rcutiny.c
68574 index 37a5444..eec170a 100644
68575 --- a/kernel/rcutiny.c
68576 +++ b/kernel/rcutiny.c
68577 @@ -46,7 +46,7 @@
68578 struct rcu_ctrlblk;
68579 static void invoke_rcu_callbacks(void);
68580 static void __rcu_process_callbacks(struct rcu_ctrlblk *rcp);
68581 -static void rcu_process_callbacks(struct softirq_action *unused);
68582 +static void rcu_process_callbacks(void);
68583 static void __call_rcu(struct rcu_head *head,
68584 void (*func)(struct rcu_head *rcu),
68585 struct rcu_ctrlblk *rcp);
68586 @@ -307,7 +307,7 @@ static void __rcu_process_callbacks(struct rcu_ctrlblk *rcp)
68587 rcu_is_callbacks_kthread()));
68588 }
68589
68590 -static void rcu_process_callbacks(struct softirq_action *unused)
68591 +static void rcu_process_callbacks(void)
68592 {
68593 __rcu_process_callbacks(&rcu_sched_ctrlblk);
68594 __rcu_process_callbacks(&rcu_bh_ctrlblk);
68595 diff --git a/kernel/rcutiny_plugin.h b/kernel/rcutiny_plugin.h
68596 index fc31a2d..be2ec04 100644
68597 --- a/kernel/rcutiny_plugin.h
68598 +++ b/kernel/rcutiny_plugin.h
68599 @@ -939,7 +939,7 @@ static int rcu_kthread(void *arg)
68600 have_rcu_kthread_work = morework;
68601 local_irq_restore(flags);
68602 if (work)
68603 - rcu_process_callbacks(NULL);
68604 + rcu_process_callbacks();
68605 schedule_timeout_interruptible(1); /* Leave CPU for others. */
68606 }
68607
68608 diff --git a/kernel/rcutorture.c b/kernel/rcutorture.c
68609 index e66b34a..4b8b626 100644
68610 --- a/kernel/rcutorture.c
68611 +++ b/kernel/rcutorture.c
68612 @@ -163,12 +163,12 @@ static DEFINE_PER_CPU(long [RCU_TORTURE_PIPE_LEN + 1], rcu_torture_count) =
68613 { 0 };
68614 static DEFINE_PER_CPU(long [RCU_TORTURE_PIPE_LEN + 1], rcu_torture_batch) =
68615 { 0 };
68616 -static atomic_t rcu_torture_wcount[RCU_TORTURE_PIPE_LEN + 1];
68617 -static atomic_t n_rcu_torture_alloc;
68618 -static atomic_t n_rcu_torture_alloc_fail;
68619 -static atomic_t n_rcu_torture_free;
68620 -static atomic_t n_rcu_torture_mberror;
68621 -static atomic_t n_rcu_torture_error;
68622 +static atomic_unchecked_t rcu_torture_wcount[RCU_TORTURE_PIPE_LEN + 1];
68623 +static atomic_unchecked_t n_rcu_torture_alloc;
68624 +static atomic_unchecked_t n_rcu_torture_alloc_fail;
68625 +static atomic_unchecked_t n_rcu_torture_free;
68626 +static atomic_unchecked_t n_rcu_torture_mberror;
68627 +static atomic_unchecked_t n_rcu_torture_error;
68628 static long n_rcu_torture_barrier_error;
68629 static long n_rcu_torture_boost_ktrerror;
68630 static long n_rcu_torture_boost_rterror;
68631 @@ -265,11 +265,11 @@ rcu_torture_alloc(void)
68632
68633 spin_lock_bh(&rcu_torture_lock);
68634 if (list_empty(&rcu_torture_freelist)) {
68635 - atomic_inc(&n_rcu_torture_alloc_fail);
68636 + atomic_inc_unchecked(&n_rcu_torture_alloc_fail);
68637 spin_unlock_bh(&rcu_torture_lock);
68638 return NULL;
68639 }
68640 - atomic_inc(&n_rcu_torture_alloc);
68641 + atomic_inc_unchecked(&n_rcu_torture_alloc);
68642 p = rcu_torture_freelist.next;
68643 list_del_init(p);
68644 spin_unlock_bh(&rcu_torture_lock);
68645 @@ -282,7 +282,7 @@ rcu_torture_alloc(void)
68646 static void
68647 rcu_torture_free(struct rcu_torture *p)
68648 {
68649 - atomic_inc(&n_rcu_torture_free);
68650 + atomic_inc_unchecked(&n_rcu_torture_free);
68651 spin_lock_bh(&rcu_torture_lock);
68652 list_add_tail(&p->rtort_free, &rcu_torture_freelist);
68653 spin_unlock_bh(&rcu_torture_lock);
68654 @@ -403,7 +403,7 @@ rcu_torture_cb(struct rcu_head *p)
68655 i = rp->rtort_pipe_count;
68656 if (i > RCU_TORTURE_PIPE_LEN)
68657 i = RCU_TORTURE_PIPE_LEN;
68658 - atomic_inc(&rcu_torture_wcount[i]);
68659 + atomic_inc_unchecked(&rcu_torture_wcount[i]);
68660 if (++rp->rtort_pipe_count >= RCU_TORTURE_PIPE_LEN) {
68661 rp->rtort_mbtest = 0;
68662 rcu_torture_free(rp);
68663 @@ -451,7 +451,7 @@ static void rcu_sync_torture_deferred_free(struct rcu_torture *p)
68664 i = rp->rtort_pipe_count;
68665 if (i > RCU_TORTURE_PIPE_LEN)
68666 i = RCU_TORTURE_PIPE_LEN;
68667 - atomic_inc(&rcu_torture_wcount[i]);
68668 + atomic_inc_unchecked(&rcu_torture_wcount[i]);
68669 if (++rp->rtort_pipe_count >= RCU_TORTURE_PIPE_LEN) {
68670 rp->rtort_mbtest = 0;
68671 list_del(&rp->rtort_free);
68672 @@ -983,7 +983,7 @@ rcu_torture_writer(void *arg)
68673 i = old_rp->rtort_pipe_count;
68674 if (i > RCU_TORTURE_PIPE_LEN)
68675 i = RCU_TORTURE_PIPE_LEN;
68676 - atomic_inc(&rcu_torture_wcount[i]);
68677 + atomic_inc_unchecked(&rcu_torture_wcount[i]);
68678 old_rp->rtort_pipe_count++;
68679 cur_ops->deferred_free(old_rp);
68680 }
68681 @@ -1064,7 +1064,7 @@ static void rcu_torture_timer(unsigned long unused)
68682 }
68683 do_trace_rcu_torture_read(cur_ops->name, &p->rtort_rcu);
68684 if (p->rtort_mbtest == 0)
68685 - atomic_inc(&n_rcu_torture_mberror);
68686 + atomic_inc_unchecked(&n_rcu_torture_mberror);
68687 spin_lock(&rand_lock);
68688 cur_ops->read_delay(&rand);
68689 n_rcu_torture_timers++;
68690 @@ -1128,7 +1128,7 @@ rcu_torture_reader(void *arg)
68691 }
68692 do_trace_rcu_torture_read(cur_ops->name, &p->rtort_rcu);
68693 if (p->rtort_mbtest == 0)
68694 - atomic_inc(&n_rcu_torture_mberror);
68695 + atomic_inc_unchecked(&n_rcu_torture_mberror);
68696 cur_ops->read_delay(&rand);
68697 preempt_disable();
68698 pipe_count = p->rtort_pipe_count;
68699 @@ -1191,10 +1191,10 @@ rcu_torture_printk(char *page)
68700 rcu_torture_current,
68701 rcu_torture_current_version,
68702 list_empty(&rcu_torture_freelist),
68703 - atomic_read(&n_rcu_torture_alloc),
68704 - atomic_read(&n_rcu_torture_alloc_fail),
68705 - atomic_read(&n_rcu_torture_free),
68706 - atomic_read(&n_rcu_torture_mberror),
68707 + atomic_read_unchecked(&n_rcu_torture_alloc),
68708 + atomic_read_unchecked(&n_rcu_torture_alloc_fail),
68709 + atomic_read_unchecked(&n_rcu_torture_free),
68710 + atomic_read_unchecked(&n_rcu_torture_mberror),
68711 n_rcu_torture_boost_ktrerror,
68712 n_rcu_torture_boost_rterror,
68713 n_rcu_torture_boost_failure,
68714 @@ -1208,14 +1208,14 @@ rcu_torture_printk(char *page)
68715 n_barrier_attempts,
68716 n_rcu_torture_barrier_error);
68717 cnt += sprintf(&page[cnt], "\n%s%s ", torture_type, TORTURE_FLAG);
68718 - if (atomic_read(&n_rcu_torture_mberror) != 0 ||
68719 + if (atomic_read_unchecked(&n_rcu_torture_mberror) != 0 ||
68720 n_rcu_torture_barrier_error != 0 ||
68721 n_rcu_torture_boost_ktrerror != 0 ||
68722 n_rcu_torture_boost_rterror != 0 ||
68723 n_rcu_torture_boost_failure != 0 ||
68724 i > 1) {
68725 cnt += sprintf(&page[cnt], "!!! ");
68726 - atomic_inc(&n_rcu_torture_error);
68727 + atomic_inc_unchecked(&n_rcu_torture_error);
68728 WARN_ON_ONCE(1);
68729 }
68730 cnt += sprintf(&page[cnt], "Reader Pipe: ");
68731 @@ -1229,7 +1229,7 @@ rcu_torture_printk(char *page)
68732 cnt += sprintf(&page[cnt], "Free-Block Circulation: ");
68733 for (i = 0; i < RCU_TORTURE_PIPE_LEN + 1; i++) {
68734 cnt += sprintf(&page[cnt], " %d",
68735 - atomic_read(&rcu_torture_wcount[i]));
68736 + atomic_read_unchecked(&rcu_torture_wcount[i]));
68737 }
68738 cnt += sprintf(&page[cnt], "\n");
68739 if (cur_ops->stats)
68740 @@ -1888,7 +1888,7 @@ rcu_torture_cleanup(void)
68741
68742 if (cur_ops->cleanup)
68743 cur_ops->cleanup();
68744 - if (atomic_read(&n_rcu_torture_error) || n_rcu_torture_barrier_error)
68745 + if (atomic_read_unchecked(&n_rcu_torture_error) || n_rcu_torture_barrier_error)
68746 rcu_torture_print_module_parms(cur_ops, "End of test: FAILURE");
68747 else if (n_online_successes != n_online_attempts ||
68748 n_offline_successes != n_offline_attempts)
68749 @@ -1958,18 +1958,18 @@ rcu_torture_init(void)
68750
68751 rcu_torture_current = NULL;
68752 rcu_torture_current_version = 0;
68753 - atomic_set(&n_rcu_torture_alloc, 0);
68754 - atomic_set(&n_rcu_torture_alloc_fail, 0);
68755 - atomic_set(&n_rcu_torture_free, 0);
68756 - atomic_set(&n_rcu_torture_mberror, 0);
68757 - atomic_set(&n_rcu_torture_error, 0);
68758 + atomic_set_unchecked(&n_rcu_torture_alloc, 0);
68759 + atomic_set_unchecked(&n_rcu_torture_alloc_fail, 0);
68760 + atomic_set_unchecked(&n_rcu_torture_free, 0);
68761 + atomic_set_unchecked(&n_rcu_torture_mberror, 0);
68762 + atomic_set_unchecked(&n_rcu_torture_error, 0);
68763 n_rcu_torture_barrier_error = 0;
68764 n_rcu_torture_boost_ktrerror = 0;
68765 n_rcu_torture_boost_rterror = 0;
68766 n_rcu_torture_boost_failure = 0;
68767 n_rcu_torture_boosts = 0;
68768 for (i = 0; i < RCU_TORTURE_PIPE_LEN + 1; i++)
68769 - atomic_set(&rcu_torture_wcount[i], 0);
68770 + atomic_set_unchecked(&rcu_torture_wcount[i], 0);
68771 for_each_possible_cpu(cpu) {
68772 for (i = 0; i < RCU_TORTURE_PIPE_LEN + 1; i++) {
68773 per_cpu(rcu_torture_count, cpu)[i] = 0;
68774 diff --git a/kernel/rcutree.c b/kernel/rcutree.c
68775 index 4b97bba..b92c9d2 100644
68776 --- a/kernel/rcutree.c
68777 +++ b/kernel/rcutree.c
68778 @@ -366,9 +366,9 @@ static void rcu_idle_enter_common(struct rcu_dynticks *rdtp, long long oldval)
68779 rcu_prepare_for_idle(smp_processor_id());
68780 /* CPUs seeing atomic_inc() must see prior RCU read-side crit sects */
68781 smp_mb__before_atomic_inc(); /* See above. */
68782 - atomic_inc(&rdtp->dynticks);
68783 + atomic_inc_unchecked(&rdtp->dynticks);
68784 smp_mb__after_atomic_inc(); /* Force ordering with next sojourn. */
68785 - WARN_ON_ONCE(atomic_read(&rdtp->dynticks) & 0x1);
68786 + WARN_ON_ONCE(atomic_read_unchecked(&rdtp->dynticks) & 0x1);
68787
68788 /*
68789 * The idle task is not permitted to enter the idle loop while
68790 @@ -457,10 +457,10 @@ void rcu_irq_exit(void)
68791 static void rcu_idle_exit_common(struct rcu_dynticks *rdtp, long long oldval)
68792 {
68793 smp_mb__before_atomic_inc(); /* Force ordering w/previous sojourn. */
68794 - atomic_inc(&rdtp->dynticks);
68795 + atomic_inc_unchecked(&rdtp->dynticks);
68796 /* CPUs seeing atomic_inc() must see later RCU read-side crit sects */
68797 smp_mb__after_atomic_inc(); /* See above. */
68798 - WARN_ON_ONCE(!(atomic_read(&rdtp->dynticks) & 0x1));
68799 + WARN_ON_ONCE(!(atomic_read_unchecked(&rdtp->dynticks) & 0x1));
68800 rcu_cleanup_after_idle(smp_processor_id());
68801 trace_rcu_dyntick("End", oldval, rdtp->dynticks_nesting);
68802 if (!is_idle_task(current)) {
68803 @@ -554,14 +554,14 @@ void rcu_nmi_enter(void)
68804 struct rcu_dynticks *rdtp = &__get_cpu_var(rcu_dynticks);
68805
68806 if (rdtp->dynticks_nmi_nesting == 0 &&
68807 - (atomic_read(&rdtp->dynticks) & 0x1))
68808 + (atomic_read_unchecked(&rdtp->dynticks) & 0x1))
68809 return;
68810 rdtp->dynticks_nmi_nesting++;
68811 smp_mb__before_atomic_inc(); /* Force delay from prior write. */
68812 - atomic_inc(&rdtp->dynticks);
68813 + atomic_inc_unchecked(&rdtp->dynticks);
68814 /* CPUs seeing atomic_inc() must see later RCU read-side crit sects */
68815 smp_mb__after_atomic_inc(); /* See above. */
68816 - WARN_ON_ONCE(!(atomic_read(&rdtp->dynticks) & 0x1));
68817 + WARN_ON_ONCE(!(atomic_read_unchecked(&rdtp->dynticks) & 0x1));
68818 }
68819
68820 /**
68821 @@ -580,9 +580,9 @@ void rcu_nmi_exit(void)
68822 return;
68823 /* CPUs seeing atomic_inc() must see prior RCU read-side crit sects */
68824 smp_mb__before_atomic_inc(); /* See above. */
68825 - atomic_inc(&rdtp->dynticks);
68826 + atomic_inc_unchecked(&rdtp->dynticks);
68827 smp_mb__after_atomic_inc(); /* Force delay to next write. */
68828 - WARN_ON_ONCE(atomic_read(&rdtp->dynticks) & 0x1);
68829 + WARN_ON_ONCE(atomic_read_unchecked(&rdtp->dynticks) & 0x1);
68830 }
68831
68832 #ifdef CONFIG_PROVE_RCU
68833 @@ -598,7 +598,7 @@ int rcu_is_cpu_idle(void)
68834 int ret;
68835
68836 preempt_disable();
68837 - ret = (atomic_read(&__get_cpu_var(rcu_dynticks).dynticks) & 0x1) == 0;
68838 + ret = (atomic_read_unchecked(&__get_cpu_var(rcu_dynticks).dynticks) & 0x1) == 0;
68839 preempt_enable();
68840 return ret;
68841 }
68842 @@ -668,7 +668,7 @@ int rcu_is_cpu_rrupt_from_idle(void)
68843 */
68844 static int dyntick_save_progress_counter(struct rcu_data *rdp)
68845 {
68846 - rdp->dynticks_snap = atomic_add_return(0, &rdp->dynticks->dynticks);
68847 + rdp->dynticks_snap = atomic_add_return_unchecked(0, &rdp->dynticks->dynticks);
68848 return (rdp->dynticks_snap & 0x1) == 0;
68849 }
68850
68851 @@ -683,7 +683,7 @@ static int rcu_implicit_dynticks_qs(struct rcu_data *rdp)
68852 unsigned int curr;
68853 unsigned int snap;
68854
68855 - curr = (unsigned int)atomic_add_return(0, &rdp->dynticks->dynticks);
68856 + curr = (unsigned int)atomic_add_return_unchecked(0, &rdp->dynticks->dynticks);
68857 snap = (unsigned int)rdp->dynticks_snap;
68858
68859 /*
68860 @@ -713,10 +713,10 @@ static int jiffies_till_stall_check(void)
68861 * for CONFIG_RCU_CPU_STALL_TIMEOUT.
68862 */
68863 if (till_stall_check < 3) {
68864 - ACCESS_ONCE(rcu_cpu_stall_timeout) = 3;
68865 + ACCESS_ONCE_RW(rcu_cpu_stall_timeout) = 3;
68866 till_stall_check = 3;
68867 } else if (till_stall_check > 300) {
68868 - ACCESS_ONCE(rcu_cpu_stall_timeout) = 300;
68869 + ACCESS_ONCE_RW(rcu_cpu_stall_timeout) = 300;
68870 till_stall_check = 300;
68871 }
68872 return till_stall_check * HZ + RCU_STALL_DELAY_DELTA;
68873 @@ -1824,7 +1824,7 @@ __rcu_process_callbacks(struct rcu_state *rsp, struct rcu_data *rdp)
68874 /*
68875 * Do RCU core processing for the current CPU.
68876 */
68877 -static void rcu_process_callbacks(struct softirq_action *unused)
68878 +static void rcu_process_callbacks(void)
68879 {
68880 trace_rcu_utilization("Start RCU core");
68881 __rcu_process_callbacks(&rcu_sched_state,
68882 @@ -2042,8 +2042,8 @@ void synchronize_rcu_bh(void)
68883 }
68884 EXPORT_SYMBOL_GPL(synchronize_rcu_bh);
68885
68886 -static atomic_t sync_sched_expedited_started = ATOMIC_INIT(0);
68887 -static atomic_t sync_sched_expedited_done = ATOMIC_INIT(0);
68888 +static atomic_unchecked_t sync_sched_expedited_started = ATOMIC_INIT(0);
68889 +static atomic_unchecked_t sync_sched_expedited_done = ATOMIC_INIT(0);
68890
68891 static int synchronize_sched_expedited_cpu_stop(void *data)
68892 {
68893 @@ -2104,7 +2104,7 @@ void synchronize_sched_expedited(void)
68894 int firstsnap, s, snap, trycount = 0;
68895
68896 /* Note that atomic_inc_return() implies full memory barrier. */
68897 - firstsnap = snap = atomic_inc_return(&sync_sched_expedited_started);
68898 + firstsnap = snap = atomic_inc_return_unchecked(&sync_sched_expedited_started);
68899 get_online_cpus();
68900 WARN_ON_ONCE(cpu_is_offline(raw_smp_processor_id()));
68901
68902 @@ -2126,7 +2126,7 @@ void synchronize_sched_expedited(void)
68903 }
68904
68905 /* Check to see if someone else did our work for us. */
68906 - s = atomic_read(&sync_sched_expedited_done);
68907 + s = atomic_read_unchecked(&sync_sched_expedited_done);
68908 if (UINT_CMP_GE((unsigned)s, (unsigned)firstsnap)) {
68909 smp_mb(); /* ensure test happens before caller kfree */
68910 return;
68911 @@ -2141,7 +2141,7 @@ void synchronize_sched_expedited(void)
68912 * grace period works for us.
68913 */
68914 get_online_cpus();
68915 - snap = atomic_read(&sync_sched_expedited_started);
68916 + snap = atomic_read_unchecked(&sync_sched_expedited_started);
68917 smp_mb(); /* ensure read is before try_stop_cpus(). */
68918 }
68919
68920 @@ -2152,12 +2152,12 @@ void synchronize_sched_expedited(void)
68921 * than we did beat us to the punch.
68922 */
68923 do {
68924 - s = atomic_read(&sync_sched_expedited_done);
68925 + s = atomic_read_unchecked(&sync_sched_expedited_done);
68926 if (UINT_CMP_GE((unsigned)s, (unsigned)snap)) {
68927 smp_mb(); /* ensure test happens before caller kfree */
68928 break;
68929 }
68930 - } while (atomic_cmpxchg(&sync_sched_expedited_done, s, snap) != s);
68931 + } while (atomic_cmpxchg_unchecked(&sync_sched_expedited_done, s, snap) != s);
68932
68933 put_online_cpus();
68934 }
68935 @@ -2421,7 +2421,7 @@ rcu_boot_init_percpu_data(int cpu, struct rcu_state *rsp)
68936 rdp->qlen = 0;
68937 rdp->dynticks = &per_cpu(rcu_dynticks, cpu);
68938 WARN_ON_ONCE(rdp->dynticks->dynticks_nesting != DYNTICK_TASK_EXIT_IDLE);
68939 - WARN_ON_ONCE(atomic_read(&rdp->dynticks->dynticks) != 1);
68940 + WARN_ON_ONCE(atomic_read_unchecked(&rdp->dynticks->dynticks) != 1);
68941 rdp->cpu = cpu;
68942 rdp->rsp = rsp;
68943 raw_spin_unlock_irqrestore(&rnp->lock, flags);
68944 @@ -2449,8 +2449,8 @@ rcu_init_percpu_data(int cpu, struct rcu_state *rsp, int preemptible)
68945 rdp->n_force_qs_snap = rsp->n_force_qs;
68946 rdp->blimit = blimit;
68947 rdp->dynticks->dynticks_nesting = DYNTICK_TASK_EXIT_IDLE;
68948 - atomic_set(&rdp->dynticks->dynticks,
68949 - (atomic_read(&rdp->dynticks->dynticks) & ~0x1) + 1);
68950 + atomic_set_unchecked(&rdp->dynticks->dynticks,
68951 + (atomic_read_unchecked(&rdp->dynticks->dynticks) & ~0x1) + 1);
68952 rcu_prepare_for_idle_init(cpu);
68953 raw_spin_unlock(&rnp->lock); /* irqs remain disabled. */
68954
68955 diff --git a/kernel/rcutree.h b/kernel/rcutree.h
68956 index 19b61ac..5c60a94 100644
68957 --- a/kernel/rcutree.h
68958 +++ b/kernel/rcutree.h
68959 @@ -83,7 +83,7 @@ struct rcu_dynticks {
68960 long long dynticks_nesting; /* Track irq/process nesting level. */
68961 /* Process level is worth LLONG_MAX/2. */
68962 int dynticks_nmi_nesting; /* Track NMI nesting level. */
68963 - atomic_t dynticks; /* Even value for idle, else odd. */
68964 + atomic_unchecked_t dynticks;/* Even value for idle, else odd. */
68965 #ifdef CONFIG_RCU_FAST_NO_HZ
68966 int dyntick_drain; /* Prepare-for-idle state variable. */
68967 unsigned long dyntick_holdoff;
68968 diff --git a/kernel/rcutree_plugin.h b/kernel/rcutree_plugin.h
68969 index 3e48994..d94f03a 100644
68970 --- a/kernel/rcutree_plugin.h
68971 +++ b/kernel/rcutree_plugin.h
68972 @@ -909,7 +909,7 @@ void synchronize_rcu_expedited(void)
68973
68974 /* Clean up and exit. */
68975 smp_mb(); /* ensure expedited GP seen before counter increment. */
68976 - ACCESS_ONCE(sync_rcu_preempt_exp_count)++;
68977 + ACCESS_ONCE_RW(sync_rcu_preempt_exp_count)++;
68978 unlock_mb_ret:
68979 mutex_unlock(&sync_rcu_preempt_exp_mutex);
68980 mb_ret:
68981 diff --git a/kernel/rcutree_trace.c b/kernel/rcutree_trace.c
68982 index d4bc16d..c234a5c 100644
68983 --- a/kernel/rcutree_trace.c
68984 +++ b/kernel/rcutree_trace.c
68985 @@ -68,7 +68,7 @@ static void print_one_rcu_data(struct seq_file *m, struct rcu_data *rdp)
68986 rdp->passed_quiesce, rdp->passed_quiesce_gpnum,
68987 rdp->qs_pending);
68988 seq_printf(m, " dt=%d/%llx/%d df=%lu",
68989 - atomic_read(&rdp->dynticks->dynticks),
68990 + atomic_read_unchecked(&rdp->dynticks->dynticks),
68991 rdp->dynticks->dynticks_nesting,
68992 rdp->dynticks->dynticks_nmi_nesting,
68993 rdp->dynticks_fqs);
68994 @@ -140,7 +140,7 @@ static void print_one_rcu_data_csv(struct seq_file *m, struct rcu_data *rdp)
68995 rdp->passed_quiesce, rdp->passed_quiesce_gpnum,
68996 rdp->qs_pending);
68997 seq_printf(m, ",%d,%llx,%d,%lu",
68998 - atomic_read(&rdp->dynticks->dynticks),
68999 + atomic_read_unchecked(&rdp->dynticks->dynticks),
69000 rdp->dynticks->dynticks_nesting,
69001 rdp->dynticks->dynticks_nmi_nesting,
69002 rdp->dynticks_fqs);
69003 diff --git a/kernel/resource.c b/kernel/resource.c
69004 index e1d2b8e..24820bb 100644
69005 --- a/kernel/resource.c
69006 +++ b/kernel/resource.c
69007 @@ -141,8 +141,18 @@ static const struct file_operations proc_iomem_operations = {
69008
69009 static int __init ioresources_init(void)
69010 {
69011 +#ifdef CONFIG_GRKERNSEC_PROC_ADD
69012 +#ifdef CONFIG_GRKERNSEC_PROC_USER
69013 + proc_create("ioports", S_IRUSR, NULL, &proc_ioports_operations);
69014 + proc_create("iomem", S_IRUSR, NULL, &proc_iomem_operations);
69015 +#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
69016 + proc_create("ioports", S_IRUSR | S_IRGRP, NULL, &proc_ioports_operations);
69017 + proc_create("iomem", S_IRUSR | S_IRGRP, NULL, &proc_iomem_operations);
69018 +#endif
69019 +#else
69020 proc_create("ioports", 0, NULL, &proc_ioports_operations);
69021 proc_create("iomem", 0, NULL, &proc_iomem_operations);
69022 +#endif
69023 return 0;
69024 }
69025 __initcall(ioresources_init);
69026 diff --git a/kernel/rtmutex-tester.c b/kernel/rtmutex-tester.c
69027 index 98ec494..4241d6d 100644
69028 --- a/kernel/rtmutex-tester.c
69029 +++ b/kernel/rtmutex-tester.c
69030 @@ -20,7 +20,7 @@
69031 #define MAX_RT_TEST_MUTEXES 8
69032
69033 static spinlock_t rttest_lock;
69034 -static atomic_t rttest_event;
69035 +static atomic_unchecked_t rttest_event;
69036
69037 struct test_thread_data {
69038 int opcode;
69039 @@ -61,7 +61,7 @@ static int handle_op(struct test_thread_data *td, int lockwakeup)
69040
69041 case RTTEST_LOCKCONT:
69042 td->mutexes[td->opdata] = 1;
69043 - td->event = atomic_add_return(1, &rttest_event);
69044 + td->event = atomic_add_return_unchecked(1, &rttest_event);
69045 return 0;
69046
69047 case RTTEST_RESET:
69048 @@ -74,7 +74,7 @@ static int handle_op(struct test_thread_data *td, int lockwakeup)
69049 return 0;
69050
69051 case RTTEST_RESETEVENT:
69052 - atomic_set(&rttest_event, 0);
69053 + atomic_set_unchecked(&rttest_event, 0);
69054 return 0;
69055
69056 default:
69057 @@ -91,9 +91,9 @@ static int handle_op(struct test_thread_data *td, int lockwakeup)
69058 return ret;
69059
69060 td->mutexes[id] = 1;
69061 - td->event = atomic_add_return(1, &rttest_event);
69062 + td->event = atomic_add_return_unchecked(1, &rttest_event);
69063 rt_mutex_lock(&mutexes[id]);
69064 - td->event = atomic_add_return(1, &rttest_event);
69065 + td->event = atomic_add_return_unchecked(1, &rttest_event);
69066 td->mutexes[id] = 4;
69067 return 0;
69068
69069 @@ -104,9 +104,9 @@ static int handle_op(struct test_thread_data *td, int lockwakeup)
69070 return ret;
69071
69072 td->mutexes[id] = 1;
69073 - td->event = atomic_add_return(1, &rttest_event);
69074 + td->event = atomic_add_return_unchecked(1, &rttest_event);
69075 ret = rt_mutex_lock_interruptible(&mutexes[id], 0);
69076 - td->event = atomic_add_return(1, &rttest_event);
69077 + td->event = atomic_add_return_unchecked(1, &rttest_event);
69078 td->mutexes[id] = ret ? 0 : 4;
69079 return ret ? -EINTR : 0;
69080
69081 @@ -115,9 +115,9 @@ static int handle_op(struct test_thread_data *td, int lockwakeup)
69082 if (id < 0 || id >= MAX_RT_TEST_MUTEXES || td->mutexes[id] != 4)
69083 return ret;
69084
69085 - td->event = atomic_add_return(1, &rttest_event);
69086 + td->event = atomic_add_return_unchecked(1, &rttest_event);
69087 rt_mutex_unlock(&mutexes[id]);
69088 - td->event = atomic_add_return(1, &rttest_event);
69089 + td->event = atomic_add_return_unchecked(1, &rttest_event);
69090 td->mutexes[id] = 0;
69091 return 0;
69092
69093 @@ -164,7 +164,7 @@ void schedule_rt_mutex_test(struct rt_mutex *mutex)
69094 break;
69095
69096 td->mutexes[dat] = 2;
69097 - td->event = atomic_add_return(1, &rttest_event);
69098 + td->event = atomic_add_return_unchecked(1, &rttest_event);
69099 break;
69100
69101 default:
69102 @@ -184,7 +184,7 @@ void schedule_rt_mutex_test(struct rt_mutex *mutex)
69103 return;
69104
69105 td->mutexes[dat] = 3;
69106 - td->event = atomic_add_return(1, &rttest_event);
69107 + td->event = atomic_add_return_unchecked(1, &rttest_event);
69108 break;
69109
69110 case RTTEST_LOCKNOWAIT:
69111 @@ -196,7 +196,7 @@ void schedule_rt_mutex_test(struct rt_mutex *mutex)
69112 return;
69113
69114 td->mutexes[dat] = 1;
69115 - td->event = atomic_add_return(1, &rttest_event);
69116 + td->event = atomic_add_return_unchecked(1, &rttest_event);
69117 return;
69118
69119 default:
69120 diff --git a/kernel/sched/auto_group.c b/kernel/sched/auto_group.c
69121 index 0984a21..939f183 100644
69122 --- a/kernel/sched/auto_group.c
69123 +++ b/kernel/sched/auto_group.c
69124 @@ -11,7 +11,7 @@
69125
69126 unsigned int __read_mostly sysctl_sched_autogroup_enabled = 1;
69127 static struct autogroup autogroup_default;
69128 -static atomic_t autogroup_seq_nr;
69129 +static atomic_unchecked_t autogroup_seq_nr;
69130
69131 void __init autogroup_init(struct task_struct *init_task)
69132 {
69133 @@ -78,7 +78,7 @@ static inline struct autogroup *autogroup_create(void)
69134
69135 kref_init(&ag->kref);
69136 init_rwsem(&ag->lock);
69137 - ag->id = atomic_inc_return(&autogroup_seq_nr);
69138 + ag->id = atomic_inc_return_unchecked(&autogroup_seq_nr);
69139 ag->tg = tg;
69140 #ifdef CONFIG_RT_GROUP_SCHED
69141 /*
69142 diff --git a/kernel/sched/core.c b/kernel/sched/core.c
69143 index 468bdd4..b941572 100644
69144 --- a/kernel/sched/core.c
69145 +++ b/kernel/sched/core.c
69146 @@ -4097,6 +4097,8 @@ int can_nice(const struct task_struct *p, const int nice)
69147 /* convert nice value [19,-20] to rlimit style value [1,40] */
69148 int nice_rlim = 20 - nice;
69149
69150 + gr_learn_resource(p, RLIMIT_NICE, nice_rlim, 1);
69151 +
69152 return (nice_rlim <= task_rlimit(p, RLIMIT_NICE) ||
69153 capable(CAP_SYS_NICE));
69154 }
69155 @@ -4130,7 +4132,8 @@ SYSCALL_DEFINE1(nice, int, increment)
69156 if (nice > 19)
69157 nice = 19;
69158
69159 - if (increment < 0 && !can_nice(current, nice))
69160 + if (increment < 0 && (!can_nice(current, nice) ||
69161 + gr_handle_chroot_nice()))
69162 return -EPERM;
69163
69164 retval = security_task_setnice(current, nice);
69165 @@ -4284,6 +4287,7 @@ recheck:
69166 unsigned long rlim_rtprio =
69167 task_rlimit(p, RLIMIT_RTPRIO);
69168
69169 + gr_learn_resource(p, RLIMIT_RTPRIO, param->sched_priority, 1);
69170 /* can't set/change the rt policy */
69171 if (policy != p->policy && !rlim_rtprio)
69172 return -EPERM;
69173 diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
69174 index c099cc6..06aec4f 100644
69175 --- a/kernel/sched/fair.c
69176 +++ b/kernel/sched/fair.c
69177 @@ -4846,7 +4846,7 @@ static void nohz_idle_balance(int this_cpu, enum cpu_idle_type idle) { }
69178 * run_rebalance_domains is triggered when needed from the scheduler tick.
69179 * Also triggered for nohz idle balancing (with nohz_balancing_kick set).
69180 */
69181 -static void run_rebalance_domains(struct softirq_action *h)
69182 +static void run_rebalance_domains(void)
69183 {
69184 int this_cpu = smp_processor_id();
69185 struct rq *this_rq = cpu_rq(this_cpu);
69186 diff --git a/kernel/signal.c b/kernel/signal.c
69187 index 6771027..763e51e 100644
69188 --- a/kernel/signal.c
69189 +++ b/kernel/signal.c
69190 @@ -48,12 +48,12 @@ static struct kmem_cache *sigqueue_cachep;
69191
69192 int print_fatal_signals __read_mostly;
69193
69194 -static void __user *sig_handler(struct task_struct *t, int sig)
69195 +static __sighandler_t sig_handler(struct task_struct *t, int sig)
69196 {
69197 return t->sighand->action[sig - 1].sa.sa_handler;
69198 }
69199
69200 -static int sig_handler_ignored(void __user *handler, int sig)
69201 +static int sig_handler_ignored(__sighandler_t handler, int sig)
69202 {
69203 /* Is it explicitly or implicitly ignored? */
69204 return handler == SIG_IGN ||
69205 @@ -62,7 +62,7 @@ static int sig_handler_ignored(void __user *handler, int sig)
69206
69207 static int sig_task_ignored(struct task_struct *t, int sig, bool force)
69208 {
69209 - void __user *handler;
69210 + __sighandler_t handler;
69211
69212 handler = sig_handler(t, sig);
69213
69214 @@ -366,6 +366,9 @@ __sigqueue_alloc(int sig, struct task_struct *t, gfp_t flags, int override_rlimi
69215 atomic_inc(&user->sigpending);
69216 rcu_read_unlock();
69217
69218 + if (!override_rlimit)
69219 + gr_learn_resource(t, RLIMIT_SIGPENDING, atomic_read(&user->sigpending), 1);
69220 +
69221 if (override_rlimit ||
69222 atomic_read(&user->sigpending) <=
69223 task_rlimit(t, RLIMIT_SIGPENDING)) {
69224 @@ -490,7 +493,7 @@ flush_signal_handlers(struct task_struct *t, int force_default)
69225
69226 int unhandled_signal(struct task_struct *tsk, int sig)
69227 {
69228 - void __user *handler = tsk->sighand->action[sig-1].sa.sa_handler;
69229 + __sighandler_t handler = tsk->sighand->action[sig-1].sa.sa_handler;
69230 if (is_global_init(tsk))
69231 return 1;
69232 if (handler != SIG_IGN && handler != SIG_DFL)
69233 @@ -816,6 +819,13 @@ static int check_kill_permission(int sig, struct siginfo *info,
69234 }
69235 }
69236
69237 + /* allow glibc communication via tgkill to other threads in our
69238 + thread group */
69239 + if ((info == SEND_SIG_NOINFO || info->si_code != SI_TKILL ||
69240 + sig != (SIGRTMIN+1) || task_tgid_vnr(t) != info->si_pid)
69241 + && gr_handle_signal(t, sig))
69242 + return -EPERM;
69243 +
69244 return security_task_kill(t, info, sig, 0);
69245 }
69246
69247 @@ -1197,7 +1207,7 @@ __group_send_sig_info(int sig, struct siginfo *info, struct task_struct *p)
69248 return send_signal(sig, info, p, 1);
69249 }
69250
69251 -static int
69252 +int
69253 specific_send_sig_info(int sig, struct siginfo *info, struct task_struct *t)
69254 {
69255 return send_signal(sig, info, t, 0);
69256 @@ -1234,6 +1244,7 @@ force_sig_info(int sig, struct siginfo *info, struct task_struct *t)
69257 unsigned long int flags;
69258 int ret, blocked, ignored;
69259 struct k_sigaction *action;
69260 + int is_unhandled = 0;
69261
69262 spin_lock_irqsave(&t->sighand->siglock, flags);
69263 action = &t->sighand->action[sig-1];
69264 @@ -1248,9 +1259,18 @@ force_sig_info(int sig, struct siginfo *info, struct task_struct *t)
69265 }
69266 if (action->sa.sa_handler == SIG_DFL)
69267 t->signal->flags &= ~SIGNAL_UNKILLABLE;
69268 + if (action->sa.sa_handler == SIG_IGN || action->sa.sa_handler == SIG_DFL)
69269 + is_unhandled = 1;
69270 ret = specific_send_sig_info(sig, info, t);
69271 spin_unlock_irqrestore(&t->sighand->siglock, flags);
69272
69273 + /* only deal with unhandled signals, java etc trigger SIGSEGV during
69274 + normal operation */
69275 + if (is_unhandled) {
69276 + gr_log_signal(sig, !is_si_special(info) ? info->si_addr : NULL, t);
69277 + gr_handle_crash(t, sig);
69278 + }
69279 +
69280 return ret;
69281 }
69282
69283 @@ -1317,8 +1337,11 @@ int group_send_sig_info(int sig, struct siginfo *info, struct task_struct *p)
69284 ret = check_kill_permission(sig, info, p);
69285 rcu_read_unlock();
69286
69287 - if (!ret && sig)
69288 + if (!ret && sig) {
69289 ret = do_send_sig_info(sig, info, p, true);
69290 + if (!ret)
69291 + gr_log_signal(sig, !is_si_special(info) ? info->si_addr : NULL, p);
69292 + }
69293
69294 return ret;
69295 }
69296 @@ -2858,7 +2881,15 @@ do_send_specific(pid_t tgid, pid_t pid, int sig, struct siginfo *info)
69297 int error = -ESRCH;
69298
69299 rcu_read_lock();
69300 - p = find_task_by_vpid(pid);
69301 +#ifdef CONFIG_GRKERNSEC_CHROOT_FINDTASK
69302 + /* allow glibc communication via tgkill to other threads in our
69303 + thread group */
69304 + if (grsec_enable_chroot_findtask && info->si_code == SI_TKILL &&
69305 + sig == (SIGRTMIN+1) && tgid == info->si_pid)
69306 + p = find_task_by_vpid_unrestricted(pid);
69307 + else
69308 +#endif
69309 + p = find_task_by_vpid(pid);
69310 if (p && (tgid <= 0 || task_tgid_vnr(p) == tgid)) {
69311 error = check_kill_permission(sig, info, p);
69312 /*
69313 diff --git a/kernel/smp.c b/kernel/smp.c
69314 index d0ae5b2..b87c5a8 100644
69315 --- a/kernel/smp.c
69316 +++ b/kernel/smp.c
69317 @@ -582,22 +582,22 @@ int smp_call_function(smp_call_func_t func, void *info, int wait)
69318 }
69319 EXPORT_SYMBOL(smp_call_function);
69320
69321 -void ipi_call_lock(void)
69322 +void ipi_call_lock(void) __acquires(call_function.lock)
69323 {
69324 raw_spin_lock(&call_function.lock);
69325 }
69326
69327 -void ipi_call_unlock(void)
69328 +void ipi_call_unlock(void) __releases(call_function.lock)
69329 {
69330 raw_spin_unlock(&call_function.lock);
69331 }
69332
69333 -void ipi_call_lock_irq(void)
69334 +void ipi_call_lock_irq(void) __acquires(call_function.lock)
69335 {
69336 raw_spin_lock_irq(&call_function.lock);
69337 }
69338
69339 -void ipi_call_unlock_irq(void)
69340 +void ipi_call_unlock_irq(void) __releases(call_function.lock)
69341 {
69342 raw_spin_unlock_irq(&call_function.lock);
69343 }
69344 diff --git a/kernel/softirq.c b/kernel/softirq.c
69345 index 671f959..91c51cb 100644
69346 --- a/kernel/softirq.c
69347 +++ b/kernel/softirq.c
69348 @@ -56,7 +56,7 @@ static struct softirq_action softirq_vec[NR_SOFTIRQS] __cacheline_aligned_in_smp
69349
69350 DEFINE_PER_CPU(struct task_struct *, ksoftirqd);
69351
69352 -char *softirq_to_name[NR_SOFTIRQS] = {
69353 +const char * const softirq_to_name[NR_SOFTIRQS] = {
69354 "HI", "TIMER", "NET_TX", "NET_RX", "BLOCK", "BLOCK_IOPOLL",
69355 "TASKLET", "SCHED", "HRTIMER", "RCU"
69356 };
69357 @@ -235,7 +235,7 @@ restart:
69358 kstat_incr_softirqs_this_cpu(vec_nr);
69359
69360 trace_softirq_entry(vec_nr);
69361 - h->action(h);
69362 + h->action();
69363 trace_softirq_exit(vec_nr);
69364 if (unlikely(prev_count != preempt_count())) {
69365 printk(KERN_ERR "huh, entered softirq %u %s %p"
69366 @@ -381,9 +381,11 @@ void __raise_softirq_irqoff(unsigned int nr)
69367 or_softirq_pending(1UL << nr);
69368 }
69369
69370 -void open_softirq(int nr, void (*action)(struct softirq_action *))
69371 +void open_softirq(int nr, void (*action)(void))
69372 {
69373 - softirq_vec[nr].action = action;
69374 + pax_open_kernel();
69375 + *(void **)&softirq_vec[nr].action = action;
69376 + pax_close_kernel();
69377 }
69378
69379 /*
69380 @@ -437,7 +439,7 @@ void __tasklet_hi_schedule_first(struct tasklet_struct *t)
69381
69382 EXPORT_SYMBOL(__tasklet_hi_schedule_first);
69383
69384 -static void tasklet_action(struct softirq_action *a)
69385 +static void tasklet_action(void)
69386 {
69387 struct tasklet_struct *list;
69388
69389 @@ -472,7 +474,7 @@ static void tasklet_action(struct softirq_action *a)
69390 }
69391 }
69392
69393 -static void tasklet_hi_action(struct softirq_action *a)
69394 +static void tasklet_hi_action(void)
69395 {
69396 struct tasklet_struct *list;
69397
69398 diff --git a/kernel/srcu.c b/kernel/srcu.c
69399 index 2095be3..9a5b89d 100644
69400 --- a/kernel/srcu.c
69401 +++ b/kernel/srcu.c
69402 @@ -302,9 +302,9 @@ int __srcu_read_lock(struct srcu_struct *sp)
69403 preempt_disable();
69404 idx = rcu_dereference_index_check(sp->completed,
69405 rcu_read_lock_sched_held()) & 0x1;
69406 - ACCESS_ONCE(this_cpu_ptr(sp->per_cpu_ref)->c[idx]) += 1;
69407 + ACCESS_ONCE_RW(this_cpu_ptr(sp->per_cpu_ref)->c[idx]) += 1;
69408 smp_mb(); /* B */ /* Avoid leaking the critical section. */
69409 - ACCESS_ONCE(this_cpu_ptr(sp->per_cpu_ref)->seq[idx]) += 1;
69410 + ACCESS_ONCE_RW(this_cpu_ptr(sp->per_cpu_ref)->seq[idx]) += 1;
69411 preempt_enable();
69412 return idx;
69413 }
69414 @@ -320,7 +320,7 @@ void __srcu_read_unlock(struct srcu_struct *sp, int idx)
69415 {
69416 preempt_disable();
69417 smp_mb(); /* C */ /* Avoid leaking the critical section. */
69418 - ACCESS_ONCE(this_cpu_ptr(sp->per_cpu_ref)->c[idx]) -= 1;
69419 + ACCESS_ONCE_RW(this_cpu_ptr(sp->per_cpu_ref)->c[idx]) -= 1;
69420 preempt_enable();
69421 }
69422 EXPORT_SYMBOL_GPL(__srcu_read_unlock);
69423 diff --git a/kernel/sys.c b/kernel/sys.c
69424 index 2d39a84..f778b49 100644
69425 --- a/kernel/sys.c
69426 +++ b/kernel/sys.c
69427 @@ -157,6 +157,12 @@ static int set_one_prio(struct task_struct *p, int niceval, int error)
69428 error = -EACCES;
69429 goto out;
69430 }
69431 +
69432 + if (gr_handle_chroot_setpriority(p, niceval)) {
69433 + error = -EACCES;
69434 + goto out;
69435 + }
69436 +
69437 no_nice = security_task_setnice(p, niceval);
69438 if (no_nice) {
69439 error = no_nice;
69440 @@ -594,6 +600,9 @@ SYSCALL_DEFINE2(setregid, gid_t, rgid, gid_t, egid)
69441 goto error;
69442 }
69443
69444 + if (gr_check_group_change(new->gid, new->egid, -1))
69445 + goto error;
69446 +
69447 if (rgid != (gid_t) -1 ||
69448 (egid != (gid_t) -1 && !gid_eq(kegid, old->gid)))
69449 new->sgid = new->egid;
69450 @@ -629,6 +638,10 @@ SYSCALL_DEFINE1(setgid, gid_t, gid)
69451 old = current_cred();
69452
69453 retval = -EPERM;
69454 +
69455 + if (gr_check_group_change(kgid, kgid, kgid))
69456 + goto error;
69457 +
69458 if (nsown_capable(CAP_SETGID))
69459 new->gid = new->egid = new->sgid = new->fsgid = kgid;
69460 else if (gid_eq(kgid, old->gid) || gid_eq(kgid, old->sgid))
69461 @@ -646,7 +659,7 @@ error:
69462 /*
69463 * change the user struct in a credentials set to match the new UID
69464 */
69465 -static int set_user(struct cred *new)
69466 +int set_user(struct cred *new)
69467 {
69468 struct user_struct *new_user;
69469
69470 @@ -726,6 +739,9 @@ SYSCALL_DEFINE2(setreuid, uid_t, ruid, uid_t, euid)
69471 goto error;
69472 }
69473
69474 + if (gr_check_user_change(new->uid, new->euid, -1))
69475 + goto error;
69476 +
69477 if (!uid_eq(new->uid, old->uid)) {
69478 retval = set_user(new);
69479 if (retval < 0)
69480 @@ -776,6 +792,12 @@ SYSCALL_DEFINE1(setuid, uid_t, uid)
69481 old = current_cred();
69482
69483 retval = -EPERM;
69484 +
69485 + if (gr_check_crash_uid(kuid))
69486 + goto error;
69487 + if (gr_check_user_change(kuid, kuid, kuid))
69488 + goto error;
69489 +
69490 if (nsown_capable(CAP_SETUID)) {
69491 new->suid = new->uid = kuid;
69492 if (!uid_eq(kuid, old->uid)) {
69493 @@ -845,6 +867,9 @@ SYSCALL_DEFINE3(setresuid, uid_t, ruid, uid_t, euid, uid_t, suid)
69494 goto error;
69495 }
69496
69497 + if (gr_check_user_change(kruid, keuid, -1))
69498 + goto error;
69499 +
69500 if (ruid != (uid_t) -1) {
69501 new->uid = kruid;
69502 if (!uid_eq(kruid, old->uid)) {
69503 @@ -927,6 +952,9 @@ SYSCALL_DEFINE3(setresgid, gid_t, rgid, gid_t, egid, gid_t, sgid)
69504 goto error;
69505 }
69506
69507 + if (gr_check_group_change(krgid, kegid, -1))
69508 + goto error;
69509 +
69510 if (rgid != (gid_t) -1)
69511 new->gid = krgid;
69512 if (egid != (gid_t) -1)
69513 @@ -980,6 +1008,9 @@ SYSCALL_DEFINE1(setfsuid, uid_t, uid)
69514 if (!uid_valid(kuid))
69515 return old_fsuid;
69516
69517 + if (gr_check_user_change(-1, -1, kuid))
69518 + goto error;
69519 +
69520 new = prepare_creds();
69521 if (!new)
69522 return old_fsuid;
69523 @@ -994,6 +1025,7 @@ SYSCALL_DEFINE1(setfsuid, uid_t, uid)
69524 }
69525 }
69526
69527 +error:
69528 abort_creds(new);
69529 return old_fsuid;
69530
69531 @@ -1026,12 +1058,16 @@ SYSCALL_DEFINE1(setfsgid, gid_t, gid)
69532 if (gid_eq(kgid, old->gid) || gid_eq(kgid, old->egid) ||
69533 gid_eq(kgid, old->sgid) || gid_eq(kgid, old->fsgid) ||
69534 nsown_capable(CAP_SETGID)) {
69535 + if (gr_check_group_change(-1, -1, kgid))
69536 + goto error;
69537 +
69538 if (!gid_eq(kgid, old->fsgid)) {
69539 new->fsgid = kgid;
69540 goto change_okay;
69541 }
69542 }
69543
69544 +error:
69545 abort_creds(new);
69546 return old_fsgid;
69547
69548 @@ -1283,7 +1319,10 @@ static int override_release(char __user *release, int len)
69549 }
69550 v = ((LINUX_VERSION_CODE >> 8) & 0xff) + 40;
69551 snprintf(buf, len, "2.6.%u%s", v, rest);
69552 - ret = copy_to_user(release, buf, len);
69553 + if (len > sizeof(buf))
69554 + ret = -EFAULT;
69555 + else
69556 + ret = copy_to_user(release, buf, len);
69557 }
69558 return ret;
69559 }
69560 @@ -1337,19 +1376,19 @@ SYSCALL_DEFINE1(olduname, struct oldold_utsname __user *, name)
69561 return -EFAULT;
69562
69563 down_read(&uts_sem);
69564 - error = __copy_to_user(&name->sysname, &utsname()->sysname,
69565 + error = __copy_to_user(name->sysname, &utsname()->sysname,
69566 __OLD_UTS_LEN);
69567 error |= __put_user(0, name->sysname + __OLD_UTS_LEN);
69568 - error |= __copy_to_user(&name->nodename, &utsname()->nodename,
69569 + error |= __copy_to_user(name->nodename, &utsname()->nodename,
69570 __OLD_UTS_LEN);
69571 error |= __put_user(0, name->nodename + __OLD_UTS_LEN);
69572 - error |= __copy_to_user(&name->release, &utsname()->release,
69573 + error |= __copy_to_user(name->release, &utsname()->release,
69574 __OLD_UTS_LEN);
69575 error |= __put_user(0, name->release + __OLD_UTS_LEN);
69576 - error |= __copy_to_user(&name->version, &utsname()->version,
69577 + error |= __copy_to_user(name->version, &utsname()->version,
69578 __OLD_UTS_LEN);
69579 error |= __put_user(0, name->version + __OLD_UTS_LEN);
69580 - error |= __copy_to_user(&name->machine, &utsname()->machine,
69581 + error |= __copy_to_user(name->machine, &utsname()->machine,
69582 __OLD_UTS_LEN);
69583 error |= __put_user(0, name->machine + __OLD_UTS_LEN);
69584 up_read(&uts_sem);
69585 @@ -2024,7 +2063,7 @@ SYSCALL_DEFINE5(prctl, int, option, unsigned long, arg2, unsigned long, arg3,
69586 error = get_dumpable(me->mm);
69587 break;
69588 case PR_SET_DUMPABLE:
69589 - if (arg2 < 0 || arg2 > 1) {
69590 + if (arg2 > 1) {
69591 error = -EINVAL;
69592 break;
69593 }
69594 diff --git a/kernel/sysctl.c b/kernel/sysctl.c
69595 index 4ab1187..33f4f2b 100644
69596 --- a/kernel/sysctl.c
69597 +++ b/kernel/sysctl.c
69598 @@ -91,7 +91,6 @@
69599
69600
69601 #if defined(CONFIG_SYSCTL)
69602 -
69603 /* External variables not in a header file. */
69604 extern int sysctl_overcommit_memory;
69605 extern int sysctl_overcommit_ratio;
69606 @@ -169,10 +168,13 @@ static int proc_taint(struct ctl_table *table, int write,
69607 void __user *buffer, size_t *lenp, loff_t *ppos);
69608 #endif
69609
69610 -#ifdef CONFIG_PRINTK
69611 static int proc_dointvec_minmax_sysadmin(struct ctl_table *table, int write,
69612 void __user *buffer, size_t *lenp, loff_t *ppos);
69613 -#endif
69614 +
69615 +static int proc_dointvec_minmax_coredump(struct ctl_table *table, int write,
69616 + void __user *buffer, size_t *lenp, loff_t *ppos);
69617 +static int proc_dostring_coredump(struct ctl_table *table, int write,
69618 + void __user *buffer, size_t *lenp, loff_t *ppos);
69619
69620 #ifdef CONFIG_MAGIC_SYSRQ
69621 /* Note: sysrq code uses it's own private copy */
69622 @@ -196,6 +198,8 @@ static int sysrq_sysctl_handler(ctl_table *table, int write,
69623
69624 #endif
69625
69626 +extern struct ctl_table grsecurity_table[];
69627 +
69628 static struct ctl_table kern_table[];
69629 static struct ctl_table vm_table[];
69630 static struct ctl_table fs_table[];
69631 @@ -210,6 +214,20 @@ extern struct ctl_table epoll_table[];
69632 int sysctl_legacy_va_layout;
69633 #endif
69634
69635 +#ifdef CONFIG_PAX_SOFTMODE
69636 +static ctl_table pax_table[] = {
69637 + {
69638 + .procname = "softmode",
69639 + .data = &pax_softmode,
69640 + .maxlen = sizeof(unsigned int),
69641 + .mode = 0600,
69642 + .proc_handler = &proc_dointvec,
69643 + },
69644 +
69645 + { }
69646 +};
69647 +#endif
69648 +
69649 /* The default sysctl tables: */
69650
69651 static struct ctl_table sysctl_base_table[] = {
69652 @@ -256,6 +274,22 @@ static int max_extfrag_threshold = 1000;
69653 #endif
69654
69655 static struct ctl_table kern_table[] = {
69656 +#if defined(CONFIG_GRKERNSEC_SYSCTL) || defined(CONFIG_GRKERNSEC_ROFS)
69657 + {
69658 + .procname = "grsecurity",
69659 + .mode = 0500,
69660 + .child = grsecurity_table,
69661 + },
69662 +#endif
69663 +
69664 +#ifdef CONFIG_PAX_SOFTMODE
69665 + {
69666 + .procname = "pax",
69667 + .mode = 0500,
69668 + .child = pax_table,
69669 + },
69670 +#endif
69671 +
69672 {
69673 .procname = "sched_child_runs_first",
69674 .data = &sysctl_sched_child_runs_first,
69675 @@ -410,7 +444,7 @@ static struct ctl_table kern_table[] = {
69676 .data = core_pattern,
69677 .maxlen = CORENAME_MAX_SIZE,
69678 .mode = 0644,
69679 - .proc_handler = proc_dostring,
69680 + .proc_handler = proc_dostring_coredump,
69681 },
69682 {
69683 .procname = "core_pipe_limit",
69684 @@ -540,7 +574,7 @@ static struct ctl_table kern_table[] = {
69685 .data = &modprobe_path,
69686 .maxlen = KMOD_PATH_LEN,
69687 .mode = 0644,
69688 - .proc_handler = proc_dostring,
69689 + .proc_handler = proc_dostring_modpriv,
69690 },
69691 {
69692 .procname = "modules_disabled",
69693 @@ -707,16 +741,20 @@ static struct ctl_table kern_table[] = {
69694 .extra1 = &zero,
69695 .extra2 = &one,
69696 },
69697 +#endif
69698 {
69699 .procname = "kptr_restrict",
69700 .data = &kptr_restrict,
69701 .maxlen = sizeof(int),
69702 .mode = 0644,
69703 .proc_handler = proc_dointvec_minmax_sysadmin,
69704 +#ifdef CONFIG_GRKERNSEC_HIDESYM
69705 + .extra1 = &two,
69706 +#else
69707 .extra1 = &zero,
69708 +#endif
69709 .extra2 = &two,
69710 },
69711 -#endif
69712 {
69713 .procname = "ngroups_max",
69714 .data = &ngroups_max,
69715 @@ -1215,6 +1253,13 @@ static struct ctl_table vm_table[] = {
69716 .proc_handler = proc_dointvec_minmax,
69717 .extra1 = &zero,
69718 },
69719 + {
69720 + .procname = "heap_stack_gap",
69721 + .data = &sysctl_heap_stack_gap,
69722 + .maxlen = sizeof(sysctl_heap_stack_gap),
69723 + .mode = 0644,
69724 + .proc_handler = proc_doulongvec_minmax,
69725 + },
69726 #else
69727 {
69728 .procname = "nr_trim_pages",
69729 @@ -1498,7 +1543,7 @@ static struct ctl_table fs_table[] = {
69730 .data = &suid_dumpable,
69731 .maxlen = sizeof(int),
69732 .mode = 0644,
69733 - .proc_handler = proc_dointvec_minmax,
69734 + .proc_handler = proc_dointvec_minmax_coredump,
69735 .extra1 = &zero,
69736 .extra2 = &two,
69737 },
69738 @@ -1645,6 +1690,16 @@ int proc_dostring(struct ctl_table *table, int write,
69739 buffer, lenp, ppos);
69740 }
69741
69742 +int proc_dostring_modpriv(struct ctl_table *table, int write,
69743 + void __user *buffer, size_t *lenp, loff_t *ppos)
69744 +{
69745 + if (write && !capable(CAP_SYS_MODULE))
69746 + return -EPERM;
69747 +
69748 + return _proc_do_string(table->data, table->maxlen, write,
69749 + buffer, lenp, ppos);
69750 +}
69751 +
69752 static size_t proc_skip_spaces(char **buf)
69753 {
69754 size_t ret;
69755 @@ -1750,6 +1805,8 @@ static int proc_put_long(void __user **buf, size_t *size, unsigned long val,
69756 len = strlen(tmp);
69757 if (len > *size)
69758 len = *size;
69759 + if (len > sizeof(tmp))
69760 + len = sizeof(tmp);
69761 if (copy_to_user(*buf, tmp, len))
69762 return -EFAULT;
69763 *size -= len;
69764 @@ -1942,7 +1999,6 @@ static int proc_taint(struct ctl_table *table, int write,
69765 return err;
69766 }
69767
69768 -#ifdef CONFIG_PRINTK
69769 static int proc_dointvec_minmax_sysadmin(struct ctl_table *table, int write,
69770 void __user *buffer, size_t *lenp, loff_t *ppos)
69771 {
69772 @@ -1951,7 +2007,6 @@ static int proc_dointvec_minmax_sysadmin(struct ctl_table *table, int write,
69773
69774 return proc_dointvec_minmax(table, write, buffer, lenp, ppos);
69775 }
69776 -#endif
69777
69778 struct do_proc_dointvec_minmax_conv_param {
69779 int *min;
69780 @@ -2009,6 +2064,34 @@ int proc_dointvec_minmax(struct ctl_table *table, int write,
69781 do_proc_dointvec_minmax_conv, &param);
69782 }
69783
69784 +static void validate_coredump_safety(void)
69785 +{
69786 + if (suid_dumpable == SUID_DUMPABLE_SAFE &&
69787 + core_pattern[0] != '/' && core_pattern[0] != '|') {
69788 + printk(KERN_WARNING "Unsafe core_pattern used with "\
69789 + "suid_dumpable=2. Pipe handler or fully qualified "\
69790 + "core dump path required.\n");
69791 + }
69792 +}
69793 +
69794 +static int proc_dointvec_minmax_coredump(struct ctl_table *table, int write,
69795 + void __user *buffer, size_t *lenp, loff_t *ppos)
69796 +{
69797 + int error = proc_dointvec_minmax(table, write, buffer, lenp, ppos);
69798 + if (!error)
69799 + validate_coredump_safety();
69800 + return error;
69801 +}
69802 +
69803 +static int proc_dostring_coredump(struct ctl_table *table, int write,
69804 + void __user *buffer, size_t *lenp, loff_t *ppos)
69805 +{
69806 + int error = proc_dostring(table, write, buffer, lenp, ppos);
69807 + if (!error)
69808 + validate_coredump_safety();
69809 + return error;
69810 +}
69811 +
69812 static int __do_proc_doulongvec_minmax(void *data, struct ctl_table *table, int write,
69813 void __user *buffer,
69814 size_t *lenp, loff_t *ppos,
69815 @@ -2066,8 +2149,11 @@ static int __do_proc_doulongvec_minmax(void *data, struct ctl_table *table, int
69816 *i = val;
69817 } else {
69818 val = convdiv * (*i) / convmul;
69819 - if (!first)
69820 + if (!first) {
69821 err = proc_put_char(&buffer, &left, '\t');
69822 + if (err)
69823 + break;
69824 + }
69825 err = proc_put_long(&buffer, &left, val, false);
69826 if (err)
69827 break;
69828 @@ -2459,6 +2545,12 @@ int proc_dostring(struct ctl_table *table, int write,
69829 return -ENOSYS;
69830 }
69831
69832 +int proc_dostring_modpriv(struct ctl_table *table, int write,
69833 + void __user *buffer, size_t *lenp, loff_t *ppos)
69834 +{
69835 + return -ENOSYS;
69836 +}
69837 +
69838 int proc_dointvec(struct ctl_table *table, int write,
69839 void __user *buffer, size_t *lenp, loff_t *ppos)
69840 {
69841 @@ -2515,5 +2607,6 @@ EXPORT_SYMBOL(proc_dointvec_minmax);
69842 EXPORT_SYMBOL(proc_dointvec_userhz_jiffies);
69843 EXPORT_SYMBOL(proc_dointvec_ms_jiffies);
69844 EXPORT_SYMBOL(proc_dostring);
69845 +EXPORT_SYMBOL(proc_dostring_modpriv);
69846 EXPORT_SYMBOL(proc_doulongvec_minmax);
69847 EXPORT_SYMBOL(proc_doulongvec_ms_jiffies_minmax);
69848 diff --git a/kernel/sysctl_binary.c b/kernel/sysctl_binary.c
69849 index a650694..aaeeb20 100644
69850 --- a/kernel/sysctl_binary.c
69851 +++ b/kernel/sysctl_binary.c
69852 @@ -989,7 +989,7 @@ static ssize_t bin_intvec(struct file *file,
69853 int i;
69854
69855 set_fs(KERNEL_DS);
69856 - result = vfs_read(file, buffer, BUFSZ - 1, &pos);
69857 + result = vfs_read(file, (char __force_user *)buffer, BUFSZ - 1, &pos);
69858 set_fs(old_fs);
69859 if (result < 0)
69860 goto out_kfree;
69861 @@ -1034,7 +1034,7 @@ static ssize_t bin_intvec(struct file *file,
69862 }
69863
69864 set_fs(KERNEL_DS);
69865 - result = vfs_write(file, buffer, str - buffer, &pos);
69866 + result = vfs_write(file, (const char __force_user *)buffer, str - buffer, &pos);
69867 set_fs(old_fs);
69868 if (result < 0)
69869 goto out_kfree;
69870 @@ -1067,7 +1067,7 @@ static ssize_t bin_ulongvec(struct file *file,
69871 int i;
69872
69873 set_fs(KERNEL_DS);
69874 - result = vfs_read(file, buffer, BUFSZ - 1, &pos);
69875 + result = vfs_read(file, (char __force_user *)buffer, BUFSZ - 1, &pos);
69876 set_fs(old_fs);
69877 if (result < 0)
69878 goto out_kfree;
69879 @@ -1112,7 +1112,7 @@ static ssize_t bin_ulongvec(struct file *file,
69880 }
69881
69882 set_fs(KERNEL_DS);
69883 - result = vfs_write(file, buffer, str - buffer, &pos);
69884 + result = vfs_write(file, (const char __force_user *)buffer, str - buffer, &pos);
69885 set_fs(old_fs);
69886 if (result < 0)
69887 goto out_kfree;
69888 @@ -1138,7 +1138,7 @@ static ssize_t bin_uuid(struct file *file,
69889 int i;
69890
69891 set_fs(KERNEL_DS);
69892 - result = vfs_read(file, buf, sizeof(buf) - 1, &pos);
69893 + result = vfs_read(file, (char __force_user *)buf, sizeof(buf) - 1, &pos);
69894 set_fs(old_fs);
69895 if (result < 0)
69896 goto out;
69897 @@ -1185,7 +1185,7 @@ static ssize_t bin_dn_node_address(struct file *file,
69898 __le16 dnaddr;
69899
69900 set_fs(KERNEL_DS);
69901 - result = vfs_read(file, buf, sizeof(buf) - 1, &pos);
69902 + result = vfs_read(file, (char __force_user *)buf, sizeof(buf) - 1, &pos);
69903 set_fs(old_fs);
69904 if (result < 0)
69905 goto out;
69906 @@ -1233,7 +1233,7 @@ static ssize_t bin_dn_node_address(struct file *file,
69907 le16_to_cpu(dnaddr) & 0x3ff);
69908
69909 set_fs(KERNEL_DS);
69910 - result = vfs_write(file, buf, len, &pos);
69911 + result = vfs_write(file, (const char __force_user *)buf, len, &pos);
69912 set_fs(old_fs);
69913 if (result < 0)
69914 goto out;
69915 diff --git a/kernel/taskstats.c b/kernel/taskstats.c
69916 index e660464..c8b9e67 100644
69917 --- a/kernel/taskstats.c
69918 +++ b/kernel/taskstats.c
69919 @@ -27,9 +27,12 @@
69920 #include <linux/cgroup.h>
69921 #include <linux/fs.h>
69922 #include <linux/file.h>
69923 +#include <linux/grsecurity.h>
69924 #include <net/genetlink.h>
69925 #include <linux/atomic.h>
69926
69927 +extern int gr_is_taskstats_denied(int pid);
69928 +
69929 /*
69930 * Maximum length of a cpumask that can be specified in
69931 * the TASKSTATS_CMD_ATTR_REGISTER/DEREGISTER_CPUMASK attribute
69932 @@ -556,6 +559,9 @@ err:
69933
69934 static int taskstats_user_cmd(struct sk_buff *skb, struct genl_info *info)
69935 {
69936 + if (gr_is_taskstats_denied(current->pid))
69937 + return -EACCES;
69938 +
69939 if (info->attrs[TASKSTATS_CMD_ATTR_REGISTER_CPUMASK])
69940 return cmd_attr_register_cpumask(info);
69941 else if (info->attrs[TASKSTATS_CMD_ATTR_DEREGISTER_CPUMASK])
69942 diff --git a/kernel/time.c b/kernel/time.c
69943 index ba744cf..267b7c5 100644
69944 --- a/kernel/time.c
69945 +++ b/kernel/time.c
69946 @@ -163,6 +163,11 @@ int do_sys_settimeofday(const struct timespec *tv, const struct timezone *tz)
69947 return error;
69948
69949 if (tz) {
69950 + /* we log in do_settimeofday called below, so don't log twice
69951 + */
69952 + if (!tv)
69953 + gr_log_timechange();
69954 +
69955 sys_tz = *tz;
69956 update_vsyscall_tz();
69957 if (firsttime) {
69958 diff --git a/kernel/time/alarmtimer.c b/kernel/time/alarmtimer.c
69959 index aa27d39..34d221c 100644
69960 --- a/kernel/time/alarmtimer.c
69961 +++ b/kernel/time/alarmtimer.c
69962 @@ -779,7 +779,7 @@ static int __init alarmtimer_init(void)
69963 struct platform_device *pdev;
69964 int error = 0;
69965 int i;
69966 - struct k_clock alarm_clock = {
69967 + static struct k_clock alarm_clock = {
69968 .clock_getres = alarm_clock_getres,
69969 .clock_get = alarm_clock_get,
69970 .timer_create = alarm_timer_create,
69971 diff --git a/kernel/time/tick-broadcast.c b/kernel/time/tick-broadcast.c
69972 index f113755..ec24223 100644
69973 --- a/kernel/time/tick-broadcast.c
69974 +++ b/kernel/time/tick-broadcast.c
69975 @@ -115,7 +115,7 @@ int tick_device_uses_broadcast(struct clock_event_device *dev, int cpu)
69976 * then clear the broadcast bit.
69977 */
69978 if (!(dev->features & CLOCK_EVT_FEAT_C3STOP)) {
69979 - int cpu = smp_processor_id();
69980 + cpu = smp_processor_id();
69981
69982 cpumask_clear_cpu(cpu, tick_get_broadcast_mask());
69983 tick_broadcast_clear_oneshot(cpu);
69984 diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c
69985 index 3447cfa..291806b 100644
69986 --- a/kernel/time/timekeeping.c
69987 +++ b/kernel/time/timekeeping.c
69988 @@ -14,6 +14,7 @@
69989 #include <linux/init.h>
69990 #include <linux/mm.h>
69991 #include <linux/sched.h>
69992 +#include <linux/grsecurity.h>
69993 #include <linux/syscore_ops.h>
69994 #include <linux/clocksource.h>
69995 #include <linux/jiffies.h>
69996 @@ -387,6 +388,8 @@ int do_settimeofday(const struct timespec *tv)
69997 if ((unsigned long)tv->tv_nsec >= NSEC_PER_SEC)
69998 return -EINVAL;
69999
70000 + gr_log_timechange();
70001 +
70002 write_seqlock_irqsave(&timekeeper.lock, flags);
70003
70004 timekeeping_forward_now();
70005 diff --git a/kernel/time/timer_list.c b/kernel/time/timer_list.c
70006 index 3258455..f35227d 100644
70007 --- a/kernel/time/timer_list.c
70008 +++ b/kernel/time/timer_list.c
70009 @@ -38,12 +38,16 @@ DECLARE_PER_CPU(struct hrtimer_cpu_base, hrtimer_bases);
70010
70011 static void print_name_offset(struct seq_file *m, void *sym)
70012 {
70013 +#ifdef CONFIG_GRKERNSEC_HIDESYM
70014 + SEQ_printf(m, "<%p>", NULL);
70015 +#else
70016 char symname[KSYM_NAME_LEN];
70017
70018 if (lookup_symbol_name((unsigned long)sym, symname) < 0)
70019 SEQ_printf(m, "<%pK>", sym);
70020 else
70021 SEQ_printf(m, "%s", symname);
70022 +#endif
70023 }
70024
70025 static void
70026 @@ -112,7 +116,11 @@ next_one:
70027 static void
70028 print_base(struct seq_file *m, struct hrtimer_clock_base *base, u64 now)
70029 {
70030 +#ifdef CONFIG_GRKERNSEC_HIDESYM
70031 + SEQ_printf(m, " .base: %p\n", NULL);
70032 +#else
70033 SEQ_printf(m, " .base: %pK\n", base);
70034 +#endif
70035 SEQ_printf(m, " .index: %d\n",
70036 base->index);
70037 SEQ_printf(m, " .resolution: %Lu nsecs\n",
70038 @@ -293,7 +301,11 @@ static int __init init_timer_list_procfs(void)
70039 {
70040 struct proc_dir_entry *pe;
70041
70042 +#ifdef CONFIG_GRKERNSEC_PROC_ADD
70043 + pe = proc_create("timer_list", 0400, NULL, &timer_list_fops);
70044 +#else
70045 pe = proc_create("timer_list", 0444, NULL, &timer_list_fops);
70046 +#endif
70047 if (!pe)
70048 return -ENOMEM;
70049 return 0;
70050 diff --git a/kernel/time/timer_stats.c b/kernel/time/timer_stats.c
70051 index 0b537f2..9e71eca 100644
70052 --- a/kernel/time/timer_stats.c
70053 +++ b/kernel/time/timer_stats.c
70054 @@ -116,7 +116,7 @@ static ktime_t time_start, time_stop;
70055 static unsigned long nr_entries;
70056 static struct entry entries[MAX_ENTRIES];
70057
70058 -static atomic_t overflow_count;
70059 +static atomic_unchecked_t overflow_count;
70060
70061 /*
70062 * The entries are in a hash-table, for fast lookup:
70063 @@ -140,7 +140,7 @@ static void reset_entries(void)
70064 nr_entries = 0;
70065 memset(entries, 0, sizeof(entries));
70066 memset(tstat_hash_table, 0, sizeof(tstat_hash_table));
70067 - atomic_set(&overflow_count, 0);
70068 + atomic_set_unchecked(&overflow_count, 0);
70069 }
70070
70071 static struct entry *alloc_entry(void)
70072 @@ -261,7 +261,7 @@ void timer_stats_update_stats(void *timer, pid_t pid, void *startf,
70073 if (likely(entry))
70074 entry->count++;
70075 else
70076 - atomic_inc(&overflow_count);
70077 + atomic_inc_unchecked(&overflow_count);
70078
70079 out_unlock:
70080 raw_spin_unlock_irqrestore(lock, flags);
70081 @@ -269,12 +269,16 @@ void timer_stats_update_stats(void *timer, pid_t pid, void *startf,
70082
70083 static void print_name_offset(struct seq_file *m, unsigned long addr)
70084 {
70085 +#ifdef CONFIG_GRKERNSEC_HIDESYM
70086 + seq_printf(m, "<%p>", NULL);
70087 +#else
70088 char symname[KSYM_NAME_LEN];
70089
70090 if (lookup_symbol_name(addr, symname) < 0)
70091 seq_printf(m, "<%p>", (void *)addr);
70092 else
70093 seq_printf(m, "%s", symname);
70094 +#endif
70095 }
70096
70097 static int tstats_show(struct seq_file *m, void *v)
70098 @@ -300,9 +304,9 @@ static int tstats_show(struct seq_file *m, void *v)
70099
70100 seq_puts(m, "Timer Stats Version: v0.2\n");
70101 seq_printf(m, "Sample period: %ld.%03ld s\n", period.tv_sec, ms);
70102 - if (atomic_read(&overflow_count))
70103 + if (atomic_read_unchecked(&overflow_count))
70104 seq_printf(m, "Overflow: %d entries\n",
70105 - atomic_read(&overflow_count));
70106 + atomic_read_unchecked(&overflow_count));
70107
70108 for (i = 0; i < nr_entries; i++) {
70109 entry = entries + i;
70110 @@ -417,7 +421,11 @@ static int __init init_tstats_procfs(void)
70111 {
70112 struct proc_dir_entry *pe;
70113
70114 +#ifdef CONFIG_GRKERNSEC_PROC_ADD
70115 + pe = proc_create("timer_stats", 0600, NULL, &tstats_fops);
70116 +#else
70117 pe = proc_create("timer_stats", 0644, NULL, &tstats_fops);
70118 +#endif
70119 if (!pe)
70120 return -ENOMEM;
70121 return 0;
70122 diff --git a/kernel/timer.c b/kernel/timer.c
70123 index 6ec7e7e..cbc448b 100644
70124 --- a/kernel/timer.c
70125 +++ b/kernel/timer.c
70126 @@ -1362,7 +1362,7 @@ void update_process_times(int user_tick)
70127 /*
70128 * This function runs timers and the timer-tq in bottom half context.
70129 */
70130 -static void run_timer_softirq(struct softirq_action *h)
70131 +static void run_timer_softirq(void)
70132 {
70133 struct tvec_base *base = __this_cpu_read(tvec_bases);
70134
70135 diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c
70136 index c0bd030..62a1927 100644
70137 --- a/kernel/trace/blktrace.c
70138 +++ b/kernel/trace/blktrace.c
70139 @@ -317,7 +317,7 @@ static ssize_t blk_dropped_read(struct file *filp, char __user *buffer,
70140 struct blk_trace *bt = filp->private_data;
70141 char buf[16];
70142
70143 - snprintf(buf, sizeof(buf), "%u\n", atomic_read(&bt->dropped));
70144 + snprintf(buf, sizeof(buf), "%u\n", atomic_read_unchecked(&bt->dropped));
70145
70146 return simple_read_from_buffer(buffer, count, ppos, buf, strlen(buf));
70147 }
70148 @@ -375,7 +375,7 @@ static int blk_subbuf_start_callback(struct rchan_buf *buf, void *subbuf,
70149 return 1;
70150
70151 bt = buf->chan->private_data;
70152 - atomic_inc(&bt->dropped);
70153 + atomic_inc_unchecked(&bt->dropped);
70154 return 0;
70155 }
70156
70157 @@ -476,7 +476,7 @@ int do_blk_trace_setup(struct request_queue *q, char *name, dev_t dev,
70158
70159 bt->dir = dir;
70160 bt->dev = dev;
70161 - atomic_set(&bt->dropped, 0);
70162 + atomic_set_unchecked(&bt->dropped, 0);
70163
70164 ret = -EIO;
70165 bt->dropped_file = debugfs_create_file("dropped", 0444, dir, bt,
70166 diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
70167 index a008663..30d7429 100644
70168 --- a/kernel/trace/ftrace.c
70169 +++ b/kernel/trace/ftrace.c
70170 @@ -1785,12 +1785,17 @@ ftrace_code_disable(struct module *mod, struct dyn_ftrace *rec)
70171 if (unlikely(ftrace_disabled))
70172 return 0;
70173
70174 + ret = ftrace_arch_code_modify_prepare();
70175 + FTRACE_WARN_ON(ret);
70176 + if (ret)
70177 + return 0;
70178 +
70179 ret = ftrace_make_nop(mod, rec, MCOUNT_ADDR);
70180 + FTRACE_WARN_ON(ftrace_arch_code_modify_post_process());
70181 if (ret) {
70182 ftrace_bug(ret, ip);
70183 - return 0;
70184 }
70185 - return 1;
70186 + return ret ? 0 : 1;
70187 }
70188
70189 /*
70190 @@ -2885,7 +2890,7 @@ static void ftrace_free_entry_rcu(struct rcu_head *rhp)
70191
70192 int
70193 register_ftrace_function_probe(char *glob, struct ftrace_probe_ops *ops,
70194 - void *data)
70195 + void *data)
70196 {
70197 struct ftrace_func_probe *entry;
70198 struct ftrace_page *pg;
70199 @@ -3697,8 +3702,10 @@ static int ftrace_process_locs(struct module *mod,
70200 if (!count)
70201 return 0;
70202
70203 + pax_open_kernel();
70204 sort(start, count, sizeof(*start),
70205 ftrace_cmp_ips, ftrace_swap_ips);
70206 + pax_close_kernel();
70207
70208 start_pg = ftrace_allocate_pages(count);
70209 if (!start_pg)
70210 diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
70211 index a7fa070..403bc8d 100644
70212 --- a/kernel/trace/trace.c
70213 +++ b/kernel/trace/trace.c
70214 @@ -4421,10 +4421,9 @@ static const struct file_operations tracing_dyn_info_fops = {
70215 };
70216 #endif
70217
70218 -static struct dentry *d_tracer;
70219 -
70220 struct dentry *tracing_init_dentry(void)
70221 {
70222 + static struct dentry *d_tracer;
70223 static int once;
70224
70225 if (d_tracer)
70226 @@ -4444,10 +4443,9 @@ struct dentry *tracing_init_dentry(void)
70227 return d_tracer;
70228 }
70229
70230 -static struct dentry *d_percpu;
70231 -
70232 struct dentry *tracing_dentry_percpu(void)
70233 {
70234 + static struct dentry *d_percpu;
70235 static int once;
70236 struct dentry *d_tracer;
70237
70238 diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c
70239 index 29111da..d190fe2 100644
70240 --- a/kernel/trace/trace_events.c
70241 +++ b/kernel/trace/trace_events.c
70242 @@ -1308,10 +1308,6 @@ static LIST_HEAD(ftrace_module_file_list);
70243 struct ftrace_module_file_ops {
70244 struct list_head list;
70245 struct module *mod;
70246 - struct file_operations id;
70247 - struct file_operations enable;
70248 - struct file_operations format;
70249 - struct file_operations filter;
70250 };
70251
70252 static struct ftrace_module_file_ops *
70253 @@ -1332,17 +1328,12 @@ trace_create_file_ops(struct module *mod)
70254
70255 file_ops->mod = mod;
70256
70257 - file_ops->id = ftrace_event_id_fops;
70258 - file_ops->id.owner = mod;
70259 -
70260 - file_ops->enable = ftrace_enable_fops;
70261 - file_ops->enable.owner = mod;
70262 -
70263 - file_ops->filter = ftrace_event_filter_fops;
70264 - file_ops->filter.owner = mod;
70265 -
70266 - file_ops->format = ftrace_event_format_fops;
70267 - file_ops->format.owner = mod;
70268 + pax_open_kernel();
70269 + *(void **)&mod->trace_id.owner = mod;
70270 + *(void **)&mod->trace_enable.owner = mod;
70271 + *(void **)&mod->trace_filter.owner = mod;
70272 + *(void **)&mod->trace_format.owner = mod;
70273 + pax_close_kernel();
70274
70275 list_add(&file_ops->list, &ftrace_module_file_list);
70276
70277 @@ -1366,8 +1357,8 @@ static void trace_module_add_events(struct module *mod)
70278
70279 for_each_event(call, start, end) {
70280 __trace_add_event_call(*call, mod,
70281 - &file_ops->id, &file_ops->enable,
70282 - &file_ops->filter, &file_ops->format);
70283 + &mod->trace_id, &mod->trace_enable,
70284 + &mod->trace_filter, &mod->trace_format);
70285 }
70286 }
70287
70288 diff --git a/kernel/trace/trace_mmiotrace.c b/kernel/trace/trace_mmiotrace.c
70289 index fd3c8aa..5f324a6 100644
70290 --- a/kernel/trace/trace_mmiotrace.c
70291 +++ b/kernel/trace/trace_mmiotrace.c
70292 @@ -24,7 +24,7 @@ struct header_iter {
70293 static struct trace_array *mmio_trace_array;
70294 static bool overrun_detected;
70295 static unsigned long prev_overruns;
70296 -static atomic_t dropped_count;
70297 +static atomic_unchecked_t dropped_count;
70298
70299 static void mmio_reset_data(struct trace_array *tr)
70300 {
70301 @@ -127,7 +127,7 @@ static void mmio_close(struct trace_iterator *iter)
70302
70303 static unsigned long count_overruns(struct trace_iterator *iter)
70304 {
70305 - unsigned long cnt = atomic_xchg(&dropped_count, 0);
70306 + unsigned long cnt = atomic_xchg_unchecked(&dropped_count, 0);
70307 unsigned long over = ring_buffer_overruns(iter->tr->buffer);
70308
70309 if (over > prev_overruns)
70310 @@ -317,7 +317,7 @@ static void __trace_mmiotrace_rw(struct trace_array *tr,
70311 event = trace_buffer_lock_reserve(buffer, TRACE_MMIO_RW,
70312 sizeof(*entry), 0, pc);
70313 if (!event) {
70314 - atomic_inc(&dropped_count);
70315 + atomic_inc_unchecked(&dropped_count);
70316 return;
70317 }
70318 entry = ring_buffer_event_data(event);
70319 @@ -347,7 +347,7 @@ static void __trace_mmiotrace_map(struct trace_array *tr,
70320 event = trace_buffer_lock_reserve(buffer, TRACE_MMIO_MAP,
70321 sizeof(*entry), 0, pc);
70322 if (!event) {
70323 - atomic_inc(&dropped_count);
70324 + atomic_inc_unchecked(&dropped_count);
70325 return;
70326 }
70327 entry = ring_buffer_event_data(event);
70328 diff --git a/kernel/trace/trace_output.c b/kernel/trace/trace_output.c
70329 index df611a0..10d8b32 100644
70330 --- a/kernel/trace/trace_output.c
70331 +++ b/kernel/trace/trace_output.c
70332 @@ -278,7 +278,7 @@ int trace_seq_path(struct trace_seq *s, const struct path *path)
70333
70334 p = d_path(path, s->buffer + s->len, PAGE_SIZE - s->len);
70335 if (!IS_ERR(p)) {
70336 - p = mangle_path(s->buffer + s->len, p, "\n");
70337 + p = mangle_path(s->buffer + s->len, p, "\n\\");
70338 if (p) {
70339 s->len = p - s->buffer;
70340 return 1;
70341 diff --git a/kernel/trace/trace_stack.c b/kernel/trace/trace_stack.c
70342 index d4545f4..a9010a1 100644
70343 --- a/kernel/trace/trace_stack.c
70344 +++ b/kernel/trace/trace_stack.c
70345 @@ -53,7 +53,7 @@ static inline void check_stack(void)
70346 return;
70347
70348 /* we do not handle interrupt stacks yet */
70349 - if (!object_is_on_stack(&this_size))
70350 + if (!object_starts_on_stack(&this_size))
70351 return;
70352
70353 local_irq_save(flags);
70354 diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
70355 index ff5bdee..3eaeba6 100644
70356 --- a/lib/Kconfig.debug
70357 +++ b/lib/Kconfig.debug
70358 @@ -1165,6 +1165,7 @@ config LATENCYTOP
70359 depends on DEBUG_KERNEL
70360 depends on STACKTRACE_SUPPORT
70361 depends on PROC_FS
70362 + depends on !GRKERNSEC_HIDESYM
70363 select FRAME_POINTER if !MIPS && !PPC && !S390 && !MICROBLAZE && !ARM_UNWIND
70364 select KALLSYMS
70365 select KALLSYMS_ALL
70366 diff --git a/lib/bitmap.c b/lib/bitmap.c
70367 index 06fdfa1..97c5c7d 100644
70368 --- a/lib/bitmap.c
70369 +++ b/lib/bitmap.c
70370 @@ -422,7 +422,7 @@ int __bitmap_parse(const char *buf, unsigned int buflen,
70371 {
70372 int c, old_c, totaldigits, ndigits, nchunks, nbits;
70373 u32 chunk;
70374 - const char __user __force *ubuf = (const char __user __force *)buf;
70375 + const char __user *ubuf = (const char __force_user *)buf;
70376
70377 bitmap_zero(maskp, nmaskbits);
70378
70379 @@ -507,7 +507,7 @@ int bitmap_parse_user(const char __user *ubuf,
70380 {
70381 if (!access_ok(VERIFY_READ, ubuf, ulen))
70382 return -EFAULT;
70383 - return __bitmap_parse((const char __force *)ubuf,
70384 + return __bitmap_parse((const char __force_kernel *)ubuf,
70385 ulen, 1, maskp, nmaskbits);
70386
70387 }
70388 @@ -598,7 +598,7 @@ static int __bitmap_parselist(const char *buf, unsigned int buflen,
70389 {
70390 unsigned a, b;
70391 int c, old_c, totaldigits;
70392 - const char __user __force *ubuf = (const char __user __force *)buf;
70393 + const char __user *ubuf = (const char __force_user *)buf;
70394 int exp_digit, in_range;
70395
70396 totaldigits = c = 0;
70397 @@ -698,7 +698,7 @@ int bitmap_parselist_user(const char __user *ubuf,
70398 {
70399 if (!access_ok(VERIFY_READ, ubuf, ulen))
70400 return -EFAULT;
70401 - return __bitmap_parselist((const char __force *)ubuf,
70402 + return __bitmap_parselist((const char __force_kernel *)ubuf,
70403 ulen, 1, maskp, nmaskbits);
70404 }
70405 EXPORT_SYMBOL(bitmap_parselist_user);
70406 diff --git a/lib/bug.c b/lib/bug.c
70407 index a28c141..2bd3d95 100644
70408 --- a/lib/bug.c
70409 +++ b/lib/bug.c
70410 @@ -133,6 +133,8 @@ enum bug_trap_type report_bug(unsigned long bugaddr, struct pt_regs *regs)
70411 return BUG_TRAP_TYPE_NONE;
70412
70413 bug = find_bug(bugaddr);
70414 + if (!bug)
70415 + return BUG_TRAP_TYPE_NONE;
70416
70417 file = NULL;
70418 line = 0;
70419 diff --git a/lib/debugobjects.c b/lib/debugobjects.c
70420 index d11808c..dc2d6f8 100644
70421 --- a/lib/debugobjects.c
70422 +++ b/lib/debugobjects.c
70423 @@ -287,7 +287,7 @@ static void debug_object_is_on_stack(void *addr, int onstack)
70424 if (limit > 4)
70425 return;
70426
70427 - is_on_stack = object_is_on_stack(addr);
70428 + is_on_stack = object_starts_on_stack(addr);
70429 if (is_on_stack == onstack)
70430 return;
70431
70432 diff --git a/lib/devres.c b/lib/devres.c
70433 index 80b9c76..9e32279 100644
70434 --- a/lib/devres.c
70435 +++ b/lib/devres.c
70436 @@ -80,7 +80,7 @@ EXPORT_SYMBOL(devm_ioremap_nocache);
70437 void devm_iounmap(struct device *dev, void __iomem *addr)
70438 {
70439 WARN_ON(devres_destroy(dev, devm_ioremap_release, devm_ioremap_match,
70440 - (void *)addr));
70441 + (void __force *)addr));
70442 iounmap(addr);
70443 }
70444 EXPORT_SYMBOL(devm_iounmap);
70445 @@ -192,7 +192,7 @@ void devm_ioport_unmap(struct device *dev, void __iomem *addr)
70446 {
70447 ioport_unmap(addr);
70448 WARN_ON(devres_destroy(dev, devm_ioport_map_release,
70449 - devm_ioport_map_match, (void *)addr));
70450 + devm_ioport_map_match, (void __force *)addr));
70451 }
70452 EXPORT_SYMBOL(devm_ioport_unmap);
70453
70454 diff --git a/lib/dma-debug.c b/lib/dma-debug.c
70455 index 66ce414..6f0a0dd 100644
70456 --- a/lib/dma-debug.c
70457 +++ b/lib/dma-debug.c
70458 @@ -924,7 +924,7 @@ out:
70459
70460 static void check_for_stack(struct device *dev, void *addr)
70461 {
70462 - if (object_is_on_stack(addr))
70463 + if (object_starts_on_stack(addr))
70464 err_printk(dev, NULL, "DMA-API: device driver maps memory from"
70465 "stack [addr=%p]\n", addr);
70466 }
70467 diff --git a/lib/extable.c b/lib/extable.c
70468 index 4cac81e..4d66cfc 100644
70469 --- a/lib/extable.c
70470 +++ b/lib/extable.c
70471 @@ -13,6 +13,7 @@
70472 #include <linux/init.h>
70473 #include <linux/sort.h>
70474 #include <asm/uaccess.h>
70475 +#include <asm/pgtable.h>
70476
70477 #ifndef ARCH_HAS_SORT_EXTABLE
70478 /*
70479 diff --git a/lib/inflate.c b/lib/inflate.c
70480 index 013a761..c28f3fc 100644
70481 --- a/lib/inflate.c
70482 +++ b/lib/inflate.c
70483 @@ -269,7 +269,7 @@ static void free(void *where)
70484 malloc_ptr = free_mem_ptr;
70485 }
70486 #else
70487 -#define malloc(a) kmalloc(a, GFP_KERNEL)
70488 +#define malloc(a) kmalloc((a), GFP_KERNEL)
70489 #define free(a) kfree(a)
70490 #endif
70491
70492 diff --git a/lib/ioremap.c b/lib/ioremap.c
70493 index 0c9216c..863bd89 100644
70494 --- a/lib/ioremap.c
70495 +++ b/lib/ioremap.c
70496 @@ -38,7 +38,7 @@ static inline int ioremap_pmd_range(pud_t *pud, unsigned long addr,
70497 unsigned long next;
70498
70499 phys_addr -= addr;
70500 - pmd = pmd_alloc(&init_mm, pud, addr);
70501 + pmd = pmd_alloc_kernel(&init_mm, pud, addr);
70502 if (!pmd)
70503 return -ENOMEM;
70504 do {
70505 @@ -56,7 +56,7 @@ static inline int ioremap_pud_range(pgd_t *pgd, unsigned long addr,
70506 unsigned long next;
70507
70508 phys_addr -= addr;
70509 - pud = pud_alloc(&init_mm, pgd, addr);
70510 + pud = pud_alloc_kernel(&init_mm, pgd, addr);
70511 if (!pud)
70512 return -ENOMEM;
70513 do {
70514 diff --git a/lib/is_single_threaded.c b/lib/is_single_threaded.c
70515 index bd2bea9..6b3c95e 100644
70516 --- a/lib/is_single_threaded.c
70517 +++ b/lib/is_single_threaded.c
70518 @@ -22,6 +22,9 @@ bool current_is_single_threaded(void)
70519 struct task_struct *p, *t;
70520 bool ret;
70521
70522 + if (!mm)
70523 + return true;
70524 +
70525 if (atomic_read(&task->signal->live) != 1)
70526 return false;
70527
70528 diff --git a/lib/radix-tree.c b/lib/radix-tree.c
70529 index e796429..6e38f9f 100644
70530 --- a/lib/radix-tree.c
70531 +++ b/lib/radix-tree.c
70532 @@ -92,7 +92,7 @@ struct radix_tree_preload {
70533 int nr;
70534 struct radix_tree_node *nodes[RADIX_TREE_PRELOAD_SIZE];
70535 };
70536 -static DEFINE_PER_CPU(struct radix_tree_preload, radix_tree_preloads) = { 0, };
70537 +static DEFINE_PER_CPU(struct radix_tree_preload, radix_tree_preloads);
70538
70539 static inline void *ptr_to_indirect(void *ptr)
70540 {
70541 diff --git a/lib/vsprintf.c b/lib/vsprintf.c
70542 index 598a73e..5c5aeb5 100644
70543 --- a/lib/vsprintf.c
70544 +++ b/lib/vsprintf.c
70545 @@ -16,6 +16,9 @@
70546 * - scnprintf and vscnprintf
70547 */
70548
70549 +#ifdef CONFIG_GRKERNSEC_HIDESYM
70550 +#define __INCLUDED_BY_HIDESYM 1
70551 +#endif
70552 #include <stdarg.h>
70553 #include <linux/module.h> /* for KSYM_SYMBOL_LEN */
70554 #include <linux/types.h>
70555 @@ -536,7 +539,7 @@ char *symbol_string(char *buf, char *end, void *ptr,
70556 char sym[KSYM_SYMBOL_LEN];
70557 if (ext == 'B')
70558 sprint_backtrace(sym, value);
70559 - else if (ext != 'f' && ext != 's')
70560 + else if (ext != 'f' && ext != 's' && ext != 'a')
70561 sprint_symbol(sym, value);
70562 else
70563 sprint_symbol_no_offset(sym, value);
70564 @@ -912,7 +915,11 @@ char *netdev_feature_string(char *buf, char *end, const u8 *addr,
70565 return number(buf, end, *(const netdev_features_t *)addr, spec);
70566 }
70567
70568 +#ifdef CONFIG_GRKERNSEC_HIDESYM
70569 +int kptr_restrict __read_mostly = 2;
70570 +#else
70571 int kptr_restrict __read_mostly;
70572 +#endif
70573
70574 /*
70575 * Show a '%p' thing. A kernel extension is that the '%p' is followed
70576 @@ -926,6 +933,8 @@ int kptr_restrict __read_mostly;
70577 * - 'S' For symbolic direct pointers with offset
70578 * - 's' For symbolic direct pointers without offset
70579 * - 'B' For backtraced symbolic direct pointers with offset
70580 + * - 'A' For symbolic direct pointers with offset approved for use with GRKERNSEC_HIDESYM
70581 + * - 'a' For symbolic direct pointers without offset approved for use with GRKERNSEC_HIDESYM
70582 * - 'R' For decoded struct resource, e.g., [mem 0x0-0x1f 64bit pref]
70583 * - 'r' For raw struct resource, e.g., [mem 0x0-0x1f flags 0x201]
70584 * - 'M' For a 6-byte MAC address, it prints the address in the
70585 @@ -973,12 +982,12 @@ char *pointer(const char *fmt, char *buf, char *end, void *ptr,
70586
70587 if (!ptr && *fmt != 'K') {
70588 /*
70589 - * Print (null) with the same width as a pointer so it makes
70590 + * Print (nil) with the same width as a pointer so it makes
70591 * tabular output look nice.
70592 */
70593 if (spec.field_width == -1)
70594 spec.field_width = default_width;
70595 - return string(buf, end, "(null)", spec);
70596 + return string(buf, end, "(nil)", spec);
70597 }
70598
70599 switch (*fmt) {
70600 @@ -988,6 +997,13 @@ char *pointer(const char *fmt, char *buf, char *end, void *ptr,
70601 /* Fallthrough */
70602 case 'S':
70603 case 's':
70604 +#ifdef CONFIG_GRKERNSEC_HIDESYM
70605 + break;
70606 +#else
70607 + return symbol_string(buf, end, ptr, spec, *fmt);
70608 +#endif
70609 + case 'A':
70610 + case 'a':
70611 case 'B':
70612 return symbol_string(buf, end, ptr, spec, *fmt);
70613 case 'R':
70614 @@ -1025,6 +1041,8 @@ char *pointer(const char *fmt, char *buf, char *end, void *ptr,
70615 va_end(va);
70616 return buf;
70617 }
70618 + case 'P':
70619 + break;
70620 case 'K':
70621 /*
70622 * %pK cannot be used in IRQ context because its test
70623 @@ -1048,6 +1066,21 @@ char *pointer(const char *fmt, char *buf, char *end, void *ptr,
70624 }
70625 break;
70626 }
70627 +
70628 +#ifdef CONFIG_GRKERNSEC_HIDESYM
70629 + /* 'P' = approved pointers to copy to userland,
70630 + as in the /proc/kallsyms case, as we make it display nothing
70631 + for non-root users, and the real contents for root users
70632 + Also ignore 'K' pointers, since we force their NULLing for non-root users
70633 + above
70634 + */
70635 + if (ptr > TASK_SIZE && *fmt != 'P' && *fmt != 'K' && is_usercopy_object(buf)) {
70636 + printk(KERN_ALERT "grsec: kernel infoleak detected! Please report this log to spender@grsecurity.net.\n");
70637 + dump_stack();
70638 + ptr = NULL;
70639 + }
70640 +#endif
70641 +
70642 spec.flags |= SMALL;
70643 if (spec.field_width == -1) {
70644 spec.field_width = default_width;
70645 @@ -1759,11 +1792,11 @@ int bstr_printf(char *buf, size_t size, const char *fmt, const u32 *bin_buf)
70646 typeof(type) value; \
70647 if (sizeof(type) == 8) { \
70648 args = PTR_ALIGN(args, sizeof(u32)); \
70649 - *(u32 *)&value = *(u32 *)args; \
70650 - *((u32 *)&value + 1) = *(u32 *)(args + 4); \
70651 + *(u32 *)&value = *(const u32 *)args; \
70652 + *((u32 *)&value + 1) = *(const u32 *)(args + 4); \
70653 } else { \
70654 args = PTR_ALIGN(args, sizeof(type)); \
70655 - value = *(typeof(type) *)args; \
70656 + value = *(const typeof(type) *)args; \
70657 } \
70658 args += sizeof(type); \
70659 value; \
70660 @@ -1826,7 +1859,7 @@ int bstr_printf(char *buf, size_t size, const char *fmt, const u32 *bin_buf)
70661 case FORMAT_TYPE_STR: {
70662 const char *str_arg = args;
70663 args += strlen(str_arg) + 1;
70664 - str = string(str, end, (char *)str_arg, spec);
70665 + str = string(str, end, str_arg, spec);
70666 break;
70667 }
70668
70669 diff --git a/localversion-grsec b/localversion-grsec
70670 new file mode 100644
70671 index 0000000..7cd6065
70672 --- /dev/null
70673 +++ b/localversion-grsec
70674 @@ -0,0 +1 @@
70675 +-grsec
70676 diff --git a/mm/Kconfig b/mm/Kconfig
70677 index 82fed4e..979e814 100644
70678 --- a/mm/Kconfig
70679 +++ b/mm/Kconfig
70680 @@ -247,10 +247,10 @@ config KSM
70681 root has set /sys/kernel/mm/ksm/run to 1 (if CONFIG_SYSFS is set).
70682
70683 config DEFAULT_MMAP_MIN_ADDR
70684 - int "Low address space to protect from user allocation"
70685 + int "Low address space to protect from user allocation"
70686 depends on MMU
70687 - default 4096
70688 - help
70689 + default 65536
70690 + help
70691 This is the portion of low virtual memory which should be protected
70692 from userspace allocation. Keeping a user from writing to low pages
70693 can help reduce the impact of kernel NULL pointer bugs.
70694 @@ -280,7 +280,7 @@ config MEMORY_FAILURE
70695
70696 config HWPOISON_INJECT
70697 tristate "HWPoison pages injector"
70698 - depends on MEMORY_FAILURE && DEBUG_KERNEL && PROC_FS
70699 + depends on MEMORY_FAILURE && DEBUG_KERNEL && PROC_FS && !GRKERNSEC
70700 select PROC_PAGE_MONITOR
70701
70702 config NOMMU_INITIAL_TRIM_EXCESS
70703 diff --git a/mm/filemap.c b/mm/filemap.c
70704 index a4a5260..6151dc5 100644
70705 --- a/mm/filemap.c
70706 +++ b/mm/filemap.c
70707 @@ -1723,7 +1723,7 @@ int generic_file_mmap(struct file * file, struct vm_area_struct * vma)
70708 struct address_space *mapping = file->f_mapping;
70709
70710 if (!mapping->a_ops->readpage)
70711 - return -ENOEXEC;
70712 + return -ENODEV;
70713 file_accessed(file);
70714 vma->vm_ops = &generic_file_vm_ops;
70715 vma->vm_flags |= VM_CAN_NONLINEAR;
70716 @@ -2064,6 +2064,7 @@ inline int generic_write_checks(struct file *file, loff_t *pos, size_t *count, i
70717 *pos = i_size_read(inode);
70718
70719 if (limit != RLIM_INFINITY) {
70720 + gr_learn_resource(current, RLIMIT_FSIZE,*pos, 0);
70721 if (*pos >= limit) {
70722 send_sig(SIGXFSZ, current, 0);
70723 return -EFBIG;
70724 diff --git a/mm/fremap.c b/mm/fremap.c
70725 index 9ed4fd4..c42648d 100644
70726 --- a/mm/fremap.c
70727 +++ b/mm/fremap.c
70728 @@ -155,6 +155,11 @@ SYSCALL_DEFINE5(remap_file_pages, unsigned long, start, unsigned long, size,
70729 retry:
70730 vma = find_vma(mm, start);
70731
70732 +#ifdef CONFIG_PAX_SEGMEXEC
70733 + if (vma && (mm->pax_flags & MF_PAX_SEGMEXEC) && (vma->vm_flags & VM_MAYEXEC))
70734 + goto out;
70735 +#endif
70736 +
70737 /*
70738 * Make sure the vma is shared, that it supports prefaulting,
70739 * and that the remapped range is valid and fully within
70740 diff --git a/mm/highmem.c b/mm/highmem.c
70741 index 57d82c6..e9e0552 100644
70742 --- a/mm/highmem.c
70743 +++ b/mm/highmem.c
70744 @@ -125,9 +125,10 @@ static void flush_all_zero_pkmaps(void)
70745 * So no dangers, even with speculative execution.
70746 */
70747 page = pte_page(pkmap_page_table[i]);
70748 + pax_open_kernel();
70749 pte_clear(&init_mm, (unsigned long)page_address(page),
70750 &pkmap_page_table[i]);
70751 -
70752 + pax_close_kernel();
70753 set_page_address(page, NULL);
70754 need_flush = 1;
70755 }
70756 @@ -186,9 +187,11 @@ start:
70757 }
70758 }
70759 vaddr = PKMAP_ADDR(last_pkmap_nr);
70760 +
70761 + pax_open_kernel();
70762 set_pte_at(&init_mm, vaddr,
70763 &(pkmap_page_table[last_pkmap_nr]), mk_pte(page, kmap_prot));
70764 -
70765 + pax_close_kernel();
70766 pkmap_count[last_pkmap_nr] = 1;
70767 set_page_address(page, (void *)vaddr);
70768
70769 diff --git a/mm/huge_memory.c b/mm/huge_memory.c
70770 index 57c4b93..24b8f59 100644
70771 --- a/mm/huge_memory.c
70772 +++ b/mm/huge_memory.c
70773 @@ -735,7 +735,7 @@ out:
70774 * run pte_offset_map on the pmd, if an huge pmd could
70775 * materialize from under us from a different thread.
70776 */
70777 - if (unlikely(__pte_alloc(mm, vma, pmd, address)))
70778 + if (unlikely(pmd_none(*pmd) && __pte_alloc(mm, vma, pmd, address)))
70779 return VM_FAULT_OOM;
70780 /* if an huge pmd materialized from under us just retry later */
70781 if (unlikely(pmd_trans_huge(*pmd)))
70782 diff --git a/mm/hugetlb.c b/mm/hugetlb.c
70783 index 19558df..f7743b3 100644
70784 --- a/mm/hugetlb.c
70785 +++ b/mm/hugetlb.c
70786 @@ -2463,6 +2463,27 @@ static int unmap_ref_private(struct mm_struct *mm, struct vm_area_struct *vma,
70787 return 1;
70788 }
70789
70790 +#ifdef CONFIG_PAX_SEGMEXEC
70791 +static void pax_mirror_huge_pte(struct vm_area_struct *vma, unsigned long address, struct page *page_m)
70792 +{
70793 + struct mm_struct *mm = vma->vm_mm;
70794 + struct vm_area_struct *vma_m;
70795 + unsigned long address_m;
70796 + pte_t *ptep_m;
70797 +
70798 + vma_m = pax_find_mirror_vma(vma);
70799 + if (!vma_m)
70800 + return;
70801 +
70802 + BUG_ON(address >= SEGMEXEC_TASK_SIZE);
70803 + address_m = address + SEGMEXEC_TASK_SIZE;
70804 + ptep_m = huge_pte_offset(mm, address_m & HPAGE_MASK);
70805 + get_page(page_m);
70806 + hugepage_add_anon_rmap(page_m, vma_m, address_m);
70807 + set_huge_pte_at(mm, address_m, ptep_m, make_huge_pte(vma_m, page_m, 0));
70808 +}
70809 +#endif
70810 +
70811 /*
70812 * Hugetlb_cow() should be called with page lock of the original hugepage held.
70813 * Called with hugetlb_instantiation_mutex held and pte_page locked so we
70814 @@ -2575,6 +2596,11 @@ retry_avoidcopy:
70815 make_huge_pte(vma, new_page, 1));
70816 page_remove_rmap(old_page);
70817 hugepage_add_new_anon_rmap(new_page, vma, address);
70818 +
70819 +#ifdef CONFIG_PAX_SEGMEXEC
70820 + pax_mirror_huge_pte(vma, address, new_page);
70821 +#endif
70822 +
70823 /* Make the old page be freed below */
70824 new_page = old_page;
70825 mmu_notifier_invalidate_range_end(mm,
70826 @@ -2729,6 +2755,10 @@ retry:
70827 && (vma->vm_flags & VM_SHARED)));
70828 set_huge_pte_at(mm, address, ptep, new_pte);
70829
70830 +#ifdef CONFIG_PAX_SEGMEXEC
70831 + pax_mirror_huge_pte(vma, address, page);
70832 +#endif
70833 +
70834 if ((flags & FAULT_FLAG_WRITE) && !(vma->vm_flags & VM_SHARED)) {
70835 /* Optimization, do the COW without a second fault */
70836 ret = hugetlb_cow(mm, vma, address, ptep, new_pte, page);
70837 @@ -2758,6 +2788,10 @@ int hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma,
70838 static DEFINE_MUTEX(hugetlb_instantiation_mutex);
70839 struct hstate *h = hstate_vma(vma);
70840
70841 +#ifdef CONFIG_PAX_SEGMEXEC
70842 + struct vm_area_struct *vma_m;
70843 +#endif
70844 +
70845 address &= huge_page_mask(h);
70846
70847 ptep = huge_pte_offset(mm, address);
70848 @@ -2771,6 +2805,26 @@ int hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma,
70849 VM_FAULT_SET_HINDEX(h - hstates);
70850 }
70851
70852 +#ifdef CONFIG_PAX_SEGMEXEC
70853 + vma_m = pax_find_mirror_vma(vma);
70854 + if (vma_m) {
70855 + unsigned long address_m;
70856 +
70857 + if (vma->vm_start > vma_m->vm_start) {
70858 + address_m = address;
70859 + address -= SEGMEXEC_TASK_SIZE;
70860 + vma = vma_m;
70861 + h = hstate_vma(vma);
70862 + } else
70863 + address_m = address + SEGMEXEC_TASK_SIZE;
70864 +
70865 + if (!huge_pte_alloc(mm, address_m, huge_page_size(h)))
70866 + return VM_FAULT_OOM;
70867 + address_m &= HPAGE_MASK;
70868 + unmap_hugepage_range(vma, address_m, address_m + HPAGE_SIZE, NULL);
70869 + }
70870 +#endif
70871 +
70872 ptep = huge_pte_alloc(mm, address, huge_page_size(h));
70873 if (!ptep)
70874 return VM_FAULT_OOM;
70875 diff --git a/mm/internal.h b/mm/internal.h
70876 index 8052379..47029d1 100644
70877 --- a/mm/internal.h
70878 +++ b/mm/internal.h
70879 @@ -95,6 +95,7 @@ extern void putback_lru_page(struct page *page);
70880 * in mm/page_alloc.c
70881 */
70882 extern void __free_pages_bootmem(struct page *page, unsigned int order);
70883 +extern void free_compound_page(struct page *page);
70884 extern void prep_compound_page(struct page *page, unsigned long order);
70885 #ifdef CONFIG_MEMORY_FAILURE
70886 extern bool is_free_buddy_page(struct page *page);
70887 diff --git a/mm/kmemleak.c b/mm/kmemleak.c
70888 index 45eb621..6ccd8ea 100644
70889 --- a/mm/kmemleak.c
70890 +++ b/mm/kmemleak.c
70891 @@ -363,7 +363,7 @@ static void print_unreferenced(struct seq_file *seq,
70892
70893 for (i = 0; i < object->trace_len; i++) {
70894 void *ptr = (void *)object->trace[i];
70895 - seq_printf(seq, " [<%p>] %pS\n", ptr, ptr);
70896 + seq_printf(seq, " [<%p>] %pA\n", ptr, ptr);
70897 }
70898 }
70899
70900 diff --git a/mm/maccess.c b/mm/maccess.c
70901 index d53adf9..03a24bf 100644
70902 --- a/mm/maccess.c
70903 +++ b/mm/maccess.c
70904 @@ -26,7 +26,7 @@ long __probe_kernel_read(void *dst, const void *src, size_t size)
70905 set_fs(KERNEL_DS);
70906 pagefault_disable();
70907 ret = __copy_from_user_inatomic(dst,
70908 - (__force const void __user *)src, size);
70909 + (const void __force_user *)src, size);
70910 pagefault_enable();
70911 set_fs(old_fs);
70912
70913 @@ -53,7 +53,7 @@ long __probe_kernel_write(void *dst, const void *src, size_t size)
70914
70915 set_fs(KERNEL_DS);
70916 pagefault_disable();
70917 - ret = __copy_to_user_inatomic((__force void __user *)dst, src, size);
70918 + ret = __copy_to_user_inatomic((void __force_user *)dst, src, size);
70919 pagefault_enable();
70920 set_fs(old_fs);
70921
70922 diff --git a/mm/madvise.c b/mm/madvise.c
70923 index 14d260f..b2a80fd 100644
70924 --- a/mm/madvise.c
70925 +++ b/mm/madvise.c
70926 @@ -48,6 +48,10 @@ static long madvise_behavior(struct vm_area_struct * vma,
70927 pgoff_t pgoff;
70928 unsigned long new_flags = vma->vm_flags;
70929
70930 +#ifdef CONFIG_PAX_SEGMEXEC
70931 + struct vm_area_struct *vma_m;
70932 +#endif
70933 +
70934 switch (behavior) {
70935 case MADV_NORMAL:
70936 new_flags = new_flags & ~VM_RAND_READ & ~VM_SEQ_READ;
70937 @@ -119,6 +123,13 @@ success:
70938 /*
70939 * vm_flags is protected by the mmap_sem held in write mode.
70940 */
70941 +
70942 +#ifdef CONFIG_PAX_SEGMEXEC
70943 + vma_m = pax_find_mirror_vma(vma);
70944 + if (vma_m)
70945 + vma_m->vm_flags = new_flags & ~(VM_WRITE | VM_MAYWRITE | VM_ACCOUNT);
70946 +#endif
70947 +
70948 vma->vm_flags = new_flags;
70949
70950 out:
70951 @@ -177,6 +188,11 @@ static long madvise_dontneed(struct vm_area_struct * vma,
70952 struct vm_area_struct ** prev,
70953 unsigned long start, unsigned long end)
70954 {
70955 +
70956 +#ifdef CONFIG_PAX_SEGMEXEC
70957 + struct vm_area_struct *vma_m;
70958 +#endif
70959 +
70960 *prev = vma;
70961 if (vma->vm_flags & (VM_LOCKED|VM_HUGETLB|VM_PFNMAP))
70962 return -EINVAL;
70963 @@ -189,6 +205,21 @@ static long madvise_dontneed(struct vm_area_struct * vma,
70964 zap_page_range(vma, start, end - start, &details);
70965 } else
70966 zap_page_range(vma, start, end - start, NULL);
70967 +
70968 +#ifdef CONFIG_PAX_SEGMEXEC
70969 + vma_m = pax_find_mirror_vma(vma);
70970 + if (vma_m) {
70971 + if (unlikely(vma->vm_flags & VM_NONLINEAR)) {
70972 + struct zap_details details = {
70973 + .nonlinear_vma = vma_m,
70974 + .last_index = ULONG_MAX,
70975 + };
70976 + zap_page_range(vma, start + SEGMEXEC_TASK_SIZE, end - start, &details);
70977 + } else
70978 + zap_page_range(vma, start + SEGMEXEC_TASK_SIZE, end - start, NULL);
70979 + }
70980 +#endif
70981 +
70982 return 0;
70983 }
70984
70985 @@ -393,6 +424,16 @@ SYSCALL_DEFINE3(madvise, unsigned long, start, size_t, len_in, int, behavior)
70986 if (end < start)
70987 goto out;
70988
70989 +#ifdef CONFIG_PAX_SEGMEXEC
70990 + if (current->mm->pax_flags & MF_PAX_SEGMEXEC) {
70991 + if (end > SEGMEXEC_TASK_SIZE)
70992 + goto out;
70993 + } else
70994 +#endif
70995 +
70996 + if (end > TASK_SIZE)
70997 + goto out;
70998 +
70999 error = 0;
71000 if (end == start)
71001 goto out;
71002 diff --git a/mm/memory-failure.c b/mm/memory-failure.c
71003 index 6de0d61..da836cf 100644
71004 --- a/mm/memory-failure.c
71005 +++ b/mm/memory-failure.c
71006 @@ -61,7 +61,7 @@ int sysctl_memory_failure_early_kill __read_mostly = 0;
71007
71008 int sysctl_memory_failure_recovery __read_mostly = 1;
71009
71010 -atomic_long_t mce_bad_pages __read_mostly = ATOMIC_LONG_INIT(0);
71011 +atomic_long_unchecked_t mce_bad_pages __read_mostly = ATOMIC_LONG_INIT(0);
71012
71013 #if defined(CONFIG_HWPOISON_INJECT) || defined(CONFIG_HWPOISON_INJECT_MODULE)
71014
71015 @@ -202,7 +202,7 @@ static int kill_proc(struct task_struct *t, unsigned long addr, int trapno,
71016 pfn, t->comm, t->pid);
71017 si.si_signo = SIGBUS;
71018 si.si_errno = 0;
71019 - si.si_addr = (void *)addr;
71020 + si.si_addr = (void __user *)addr;
71021 #ifdef __ARCH_SI_TRAPNO
71022 si.si_trapno = trapno;
71023 #endif
71024 @@ -1038,7 +1038,7 @@ int memory_failure(unsigned long pfn, int trapno, int flags)
71025 }
71026
71027 nr_pages = 1 << compound_trans_order(hpage);
71028 - atomic_long_add(nr_pages, &mce_bad_pages);
71029 + atomic_long_add_unchecked(nr_pages, &mce_bad_pages);
71030
71031 /*
71032 * We need/can do nothing about count=0 pages.
71033 @@ -1068,7 +1068,7 @@ int memory_failure(unsigned long pfn, int trapno, int flags)
71034 if (!PageHWPoison(hpage)
71035 || (hwpoison_filter(p) && TestClearPageHWPoison(p))
71036 || (p != hpage && TestSetPageHWPoison(hpage))) {
71037 - atomic_long_sub(nr_pages, &mce_bad_pages);
71038 + atomic_long_sub_unchecked(nr_pages, &mce_bad_pages);
71039 return 0;
71040 }
71041 set_page_hwpoison_huge_page(hpage);
71042 @@ -1126,7 +1126,7 @@ int memory_failure(unsigned long pfn, int trapno, int flags)
71043 }
71044 if (hwpoison_filter(p)) {
71045 if (TestClearPageHWPoison(p))
71046 - atomic_long_sub(nr_pages, &mce_bad_pages);
71047 + atomic_long_sub_unchecked(nr_pages, &mce_bad_pages);
71048 unlock_page(hpage);
71049 put_page(hpage);
71050 return 0;
71051 @@ -1321,7 +1321,7 @@ int unpoison_memory(unsigned long pfn)
71052 return 0;
71053 }
71054 if (TestClearPageHWPoison(p))
71055 - atomic_long_sub(nr_pages, &mce_bad_pages);
71056 + atomic_long_sub_unchecked(nr_pages, &mce_bad_pages);
71057 pr_info("MCE: Software-unpoisoned free page %#lx\n", pfn);
71058 return 0;
71059 }
71060 @@ -1335,7 +1335,7 @@ int unpoison_memory(unsigned long pfn)
71061 */
71062 if (TestClearPageHWPoison(page)) {
71063 pr_info("MCE: Software-unpoisoned page %#lx\n", pfn);
71064 - atomic_long_sub(nr_pages, &mce_bad_pages);
71065 + atomic_long_sub_unchecked(nr_pages, &mce_bad_pages);
71066 freeit = 1;
71067 if (PageHuge(page))
71068 clear_page_hwpoison_huge_page(page);
71069 @@ -1448,7 +1448,7 @@ static int soft_offline_huge_page(struct page *page, int flags)
71070 }
71071 done:
71072 if (!PageHWPoison(hpage))
71073 - atomic_long_add(1 << compound_trans_order(hpage), &mce_bad_pages);
71074 + atomic_long_add_unchecked(1 << compound_trans_order(hpage), &mce_bad_pages);
71075 set_page_hwpoison_huge_page(hpage);
71076 dequeue_hwpoisoned_huge_page(hpage);
71077 /* keep elevated page count for bad page */
71078 @@ -1579,7 +1579,7 @@ int soft_offline_page(struct page *page, int flags)
71079 return ret;
71080
71081 done:
71082 - atomic_long_add(1, &mce_bad_pages);
71083 + atomic_long_add_unchecked(1, &mce_bad_pages);
71084 SetPageHWPoison(page);
71085 /* keep elevated page count for bad page */
71086 return ret;
71087 diff --git a/mm/memory.c b/mm/memory.c
71088 index 2466d12..08be4f6 100644
71089 --- a/mm/memory.c
71090 +++ b/mm/memory.c
71091 @@ -434,8 +434,12 @@ static inline void free_pmd_range(struct mmu_gather *tlb, pud_t *pud,
71092 return;
71093
71094 pmd = pmd_offset(pud, start);
71095 +
71096 +#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_PER_CPU_PGD)
71097 pud_clear(pud);
71098 pmd_free_tlb(tlb, pmd, start);
71099 +#endif
71100 +
71101 }
71102
71103 static inline void free_pud_range(struct mmu_gather *tlb, pgd_t *pgd,
71104 @@ -466,9 +470,12 @@ static inline void free_pud_range(struct mmu_gather *tlb, pgd_t *pgd,
71105 if (end - 1 > ceiling - 1)
71106 return;
71107
71108 +#if !defined(CONFIG_X86_64) || !defined(CONFIG_PAX_PER_CPU_PGD)
71109 pud = pud_offset(pgd, start);
71110 pgd_clear(pgd);
71111 pud_free_tlb(tlb, pud, start);
71112 +#endif
71113 +
71114 }
71115
71116 /*
71117 @@ -1602,12 +1609,6 @@ no_page_table:
71118 return page;
71119 }
71120
71121 -static inline int stack_guard_page(struct vm_area_struct *vma, unsigned long addr)
71122 -{
71123 - return stack_guard_page_start(vma, addr) ||
71124 - stack_guard_page_end(vma, addr+PAGE_SIZE);
71125 -}
71126 -
71127 /**
71128 * __get_user_pages() - pin user pages in memory
71129 * @tsk: task_struct of target task
71130 @@ -1680,10 +1681,10 @@ int __get_user_pages(struct task_struct *tsk, struct mm_struct *mm,
71131 (VM_MAYREAD | VM_MAYWRITE) : (VM_READ | VM_WRITE);
71132 i = 0;
71133
71134 - do {
71135 + while (nr_pages) {
71136 struct vm_area_struct *vma;
71137
71138 - vma = find_extend_vma(mm, start);
71139 + vma = find_vma(mm, start);
71140 if (!vma && in_gate_area(mm, start)) {
71141 unsigned long pg = start & PAGE_MASK;
71142 pgd_t *pgd;
71143 @@ -1731,7 +1732,7 @@ int __get_user_pages(struct task_struct *tsk, struct mm_struct *mm,
71144 goto next_page;
71145 }
71146
71147 - if (!vma ||
71148 + if (!vma || start < vma->vm_start ||
71149 (vma->vm_flags & (VM_IO | VM_PFNMAP)) ||
71150 !(vm_flags & vma->vm_flags))
71151 return i ? : -EFAULT;
71152 @@ -1758,11 +1759,6 @@ int __get_user_pages(struct task_struct *tsk, struct mm_struct *mm,
71153 int ret;
71154 unsigned int fault_flags = 0;
71155
71156 - /* For mlock, just skip the stack guard page. */
71157 - if (foll_flags & FOLL_MLOCK) {
71158 - if (stack_guard_page(vma, start))
71159 - goto next_page;
71160 - }
71161 if (foll_flags & FOLL_WRITE)
71162 fault_flags |= FAULT_FLAG_WRITE;
71163 if (nonblocking)
71164 @@ -1836,7 +1832,7 @@ next_page:
71165 start += PAGE_SIZE;
71166 nr_pages--;
71167 } while (nr_pages && start < vma->vm_end);
71168 - } while (nr_pages);
71169 + }
71170 return i;
71171 }
71172 EXPORT_SYMBOL(__get_user_pages);
71173 @@ -2043,6 +2039,10 @@ static int insert_page(struct vm_area_struct *vma, unsigned long addr,
71174 page_add_file_rmap(page);
71175 set_pte_at(mm, addr, pte, mk_pte(page, prot));
71176
71177 +#ifdef CONFIG_PAX_SEGMEXEC
71178 + pax_mirror_file_pte(vma, addr, page, ptl);
71179 +#endif
71180 +
71181 retval = 0;
71182 pte_unmap_unlock(pte, ptl);
71183 return retval;
71184 @@ -2077,10 +2077,22 @@ out:
71185 int vm_insert_page(struct vm_area_struct *vma, unsigned long addr,
71186 struct page *page)
71187 {
71188 +
71189 +#ifdef CONFIG_PAX_SEGMEXEC
71190 + struct vm_area_struct *vma_m;
71191 +#endif
71192 +
71193 if (addr < vma->vm_start || addr >= vma->vm_end)
71194 return -EFAULT;
71195 if (!page_count(page))
71196 return -EINVAL;
71197 +
71198 +#ifdef CONFIG_PAX_SEGMEXEC
71199 + vma_m = pax_find_mirror_vma(vma);
71200 + if (vma_m)
71201 + vma_m->vm_flags |= VM_INSERTPAGE;
71202 +#endif
71203 +
71204 vma->vm_flags |= VM_INSERTPAGE;
71205 return insert_page(vma, addr, page, vma->vm_page_prot);
71206 }
71207 @@ -2166,6 +2178,7 @@ int vm_insert_mixed(struct vm_area_struct *vma, unsigned long addr,
71208 unsigned long pfn)
71209 {
71210 BUG_ON(!(vma->vm_flags & VM_MIXEDMAP));
71211 + BUG_ON(vma->vm_mirror);
71212
71213 if (addr < vma->vm_start || addr >= vma->vm_end)
71214 return -EFAULT;
71215 @@ -2373,7 +2386,9 @@ static int apply_to_pmd_range(struct mm_struct *mm, pud_t *pud,
71216
71217 BUG_ON(pud_huge(*pud));
71218
71219 - pmd = pmd_alloc(mm, pud, addr);
71220 + pmd = (mm == &init_mm) ?
71221 + pmd_alloc_kernel(mm, pud, addr) :
71222 + pmd_alloc(mm, pud, addr);
71223 if (!pmd)
71224 return -ENOMEM;
71225 do {
71226 @@ -2393,7 +2408,9 @@ static int apply_to_pud_range(struct mm_struct *mm, pgd_t *pgd,
71227 unsigned long next;
71228 int err;
71229
71230 - pud = pud_alloc(mm, pgd, addr);
71231 + pud = (mm == &init_mm) ?
71232 + pud_alloc_kernel(mm, pgd, addr) :
71233 + pud_alloc(mm, pgd, addr);
71234 if (!pud)
71235 return -ENOMEM;
71236 do {
71237 @@ -2481,6 +2498,186 @@ static inline void cow_user_page(struct page *dst, struct page *src, unsigned lo
71238 copy_user_highpage(dst, src, va, vma);
71239 }
71240
71241 +#ifdef CONFIG_PAX_SEGMEXEC
71242 +static void pax_unmap_mirror_pte(struct vm_area_struct *vma, unsigned long address, pmd_t *pmd)
71243 +{
71244 + struct mm_struct *mm = vma->vm_mm;
71245 + spinlock_t *ptl;
71246 + pte_t *pte, entry;
71247 +
71248 + pte = pte_offset_map_lock(mm, pmd, address, &ptl);
71249 + entry = *pte;
71250 + if (!pte_present(entry)) {
71251 + if (!pte_none(entry)) {
71252 + BUG_ON(pte_file(entry));
71253 + free_swap_and_cache(pte_to_swp_entry(entry));
71254 + pte_clear_not_present_full(mm, address, pte, 0);
71255 + }
71256 + } else {
71257 + struct page *page;
71258 +
71259 + flush_cache_page(vma, address, pte_pfn(entry));
71260 + entry = ptep_clear_flush(vma, address, pte);
71261 + BUG_ON(pte_dirty(entry));
71262 + page = vm_normal_page(vma, address, entry);
71263 + if (page) {
71264 + update_hiwater_rss(mm);
71265 + if (PageAnon(page))
71266 + dec_mm_counter_fast(mm, MM_ANONPAGES);
71267 + else
71268 + dec_mm_counter_fast(mm, MM_FILEPAGES);
71269 + page_remove_rmap(page);
71270 + page_cache_release(page);
71271 + }
71272 + }
71273 + pte_unmap_unlock(pte, ptl);
71274 +}
71275 +
71276 +/* PaX: if vma is mirrored, synchronize the mirror's PTE
71277 + *
71278 + * the ptl of the lower mapped page is held on entry and is not released on exit
71279 + * or inside to ensure atomic changes to the PTE states (swapout, mremap, munmap, etc)
71280 + */
71281 +static void pax_mirror_anon_pte(struct vm_area_struct *vma, unsigned long address, struct page *page_m, spinlock_t *ptl)
71282 +{
71283 + struct mm_struct *mm = vma->vm_mm;
71284 + unsigned long address_m;
71285 + spinlock_t *ptl_m;
71286 + struct vm_area_struct *vma_m;
71287 + pmd_t *pmd_m;
71288 + pte_t *pte_m, entry_m;
71289 +
71290 + BUG_ON(!page_m || !PageAnon(page_m));
71291 +
71292 + vma_m = pax_find_mirror_vma(vma);
71293 + if (!vma_m)
71294 + return;
71295 +
71296 + BUG_ON(!PageLocked(page_m));
71297 + BUG_ON(address >= SEGMEXEC_TASK_SIZE);
71298 + address_m = address + SEGMEXEC_TASK_SIZE;
71299 + pmd_m = pmd_offset(pud_offset(pgd_offset(mm, address_m), address_m), address_m);
71300 + pte_m = pte_offset_map(pmd_m, address_m);
71301 + ptl_m = pte_lockptr(mm, pmd_m);
71302 + if (ptl != ptl_m) {
71303 + spin_lock_nested(ptl_m, SINGLE_DEPTH_NESTING);
71304 + if (!pte_none(*pte_m))
71305 + goto out;
71306 + }
71307 +
71308 + entry_m = pfn_pte(page_to_pfn(page_m), vma_m->vm_page_prot);
71309 + page_cache_get(page_m);
71310 + page_add_anon_rmap(page_m, vma_m, address_m);
71311 + inc_mm_counter_fast(mm, MM_ANONPAGES);
71312 + set_pte_at(mm, address_m, pte_m, entry_m);
71313 + update_mmu_cache(vma_m, address_m, entry_m);
71314 +out:
71315 + if (ptl != ptl_m)
71316 + spin_unlock(ptl_m);
71317 + pte_unmap(pte_m);
71318 + unlock_page(page_m);
71319 +}
71320 +
71321 +void pax_mirror_file_pte(struct vm_area_struct *vma, unsigned long address, struct page *page_m, spinlock_t *ptl)
71322 +{
71323 + struct mm_struct *mm = vma->vm_mm;
71324 + unsigned long address_m;
71325 + spinlock_t *ptl_m;
71326 + struct vm_area_struct *vma_m;
71327 + pmd_t *pmd_m;
71328 + pte_t *pte_m, entry_m;
71329 +
71330 + BUG_ON(!page_m || PageAnon(page_m));
71331 +
71332 + vma_m = pax_find_mirror_vma(vma);
71333 + if (!vma_m)
71334 + return;
71335 +
71336 + BUG_ON(address >= SEGMEXEC_TASK_SIZE);
71337 + address_m = address + SEGMEXEC_TASK_SIZE;
71338 + pmd_m = pmd_offset(pud_offset(pgd_offset(mm, address_m), address_m), address_m);
71339 + pte_m = pte_offset_map(pmd_m, address_m);
71340 + ptl_m = pte_lockptr(mm, pmd_m);
71341 + if (ptl != ptl_m) {
71342 + spin_lock_nested(ptl_m, SINGLE_DEPTH_NESTING);
71343 + if (!pte_none(*pte_m))
71344 + goto out;
71345 + }
71346 +
71347 + entry_m = pfn_pte(page_to_pfn(page_m), vma_m->vm_page_prot);
71348 + page_cache_get(page_m);
71349 + page_add_file_rmap(page_m);
71350 + inc_mm_counter_fast(mm, MM_FILEPAGES);
71351 + set_pte_at(mm, address_m, pte_m, entry_m);
71352 + update_mmu_cache(vma_m, address_m, entry_m);
71353 +out:
71354 + if (ptl != ptl_m)
71355 + spin_unlock(ptl_m);
71356 + pte_unmap(pte_m);
71357 +}
71358 +
71359 +static void pax_mirror_pfn_pte(struct vm_area_struct *vma, unsigned long address, unsigned long pfn_m, spinlock_t *ptl)
71360 +{
71361 + struct mm_struct *mm = vma->vm_mm;
71362 + unsigned long address_m;
71363 + spinlock_t *ptl_m;
71364 + struct vm_area_struct *vma_m;
71365 + pmd_t *pmd_m;
71366 + pte_t *pte_m, entry_m;
71367 +
71368 + vma_m = pax_find_mirror_vma(vma);
71369 + if (!vma_m)
71370 + return;
71371 +
71372 + BUG_ON(address >= SEGMEXEC_TASK_SIZE);
71373 + address_m = address + SEGMEXEC_TASK_SIZE;
71374 + pmd_m = pmd_offset(pud_offset(pgd_offset(mm, address_m), address_m), address_m);
71375 + pte_m = pte_offset_map(pmd_m, address_m);
71376 + ptl_m = pte_lockptr(mm, pmd_m);
71377 + if (ptl != ptl_m) {
71378 + spin_lock_nested(ptl_m, SINGLE_DEPTH_NESTING);
71379 + if (!pte_none(*pte_m))
71380 + goto out;
71381 + }
71382 +
71383 + entry_m = pfn_pte(pfn_m, vma_m->vm_page_prot);
71384 + set_pte_at(mm, address_m, pte_m, entry_m);
71385 +out:
71386 + if (ptl != ptl_m)
71387 + spin_unlock(ptl_m);
71388 + pte_unmap(pte_m);
71389 +}
71390 +
71391 +static void pax_mirror_pte(struct vm_area_struct *vma, unsigned long address, pte_t *pte, pmd_t *pmd, spinlock_t *ptl)
71392 +{
71393 + struct page *page_m;
71394 + pte_t entry;
71395 +
71396 + if (!(vma->vm_mm->pax_flags & MF_PAX_SEGMEXEC))
71397 + goto out;
71398 +
71399 + entry = *pte;
71400 + page_m = vm_normal_page(vma, address, entry);
71401 + if (!page_m)
71402 + pax_mirror_pfn_pte(vma, address, pte_pfn(entry), ptl);
71403 + else if (PageAnon(page_m)) {
71404 + if (pax_find_mirror_vma(vma)) {
71405 + pte_unmap_unlock(pte, ptl);
71406 + lock_page(page_m);
71407 + pte = pte_offset_map_lock(vma->vm_mm, pmd, address, &ptl);
71408 + if (pte_same(entry, *pte))
71409 + pax_mirror_anon_pte(vma, address, page_m, ptl);
71410 + else
71411 + unlock_page(page_m);
71412 + }
71413 + } else
71414 + pax_mirror_file_pte(vma, address, page_m, ptl);
71415 +
71416 +out:
71417 + pte_unmap_unlock(pte, ptl);
71418 +}
71419 +#endif
71420 +
71421 /*
71422 * This routine handles present pages, when users try to write
71423 * to a shared page. It is done by copying the page to a new address
71424 @@ -2692,6 +2889,12 @@ gotten:
71425 */
71426 page_table = pte_offset_map_lock(mm, pmd, address, &ptl);
71427 if (likely(pte_same(*page_table, orig_pte))) {
71428 +
71429 +#ifdef CONFIG_PAX_SEGMEXEC
71430 + if (pax_find_mirror_vma(vma))
71431 + BUG_ON(!trylock_page(new_page));
71432 +#endif
71433 +
71434 if (old_page) {
71435 if (!PageAnon(old_page)) {
71436 dec_mm_counter_fast(mm, MM_FILEPAGES);
71437 @@ -2743,6 +2946,10 @@ gotten:
71438 page_remove_rmap(old_page);
71439 }
71440
71441 +#ifdef CONFIG_PAX_SEGMEXEC
71442 + pax_mirror_anon_pte(vma, address, new_page, ptl);
71443 +#endif
71444 +
71445 /* Free the old page.. */
71446 new_page = old_page;
71447 ret |= VM_FAULT_WRITE;
71448 @@ -3022,6 +3229,11 @@ static int do_swap_page(struct mm_struct *mm, struct vm_area_struct *vma,
71449 swap_free(entry);
71450 if (vm_swap_full() || (vma->vm_flags & VM_LOCKED) || PageMlocked(page))
71451 try_to_free_swap(page);
71452 +
71453 +#ifdef CONFIG_PAX_SEGMEXEC
71454 + if ((flags & FAULT_FLAG_WRITE) || !pax_find_mirror_vma(vma))
71455 +#endif
71456 +
71457 unlock_page(page);
71458 if (swapcache) {
71459 /*
71460 @@ -3045,6 +3257,11 @@ static int do_swap_page(struct mm_struct *mm, struct vm_area_struct *vma,
71461
71462 /* No need to invalidate - it was non-present before */
71463 update_mmu_cache(vma, address, page_table);
71464 +
71465 +#ifdef CONFIG_PAX_SEGMEXEC
71466 + pax_mirror_anon_pte(vma, address, page, ptl);
71467 +#endif
71468 +
71469 unlock:
71470 pte_unmap_unlock(page_table, ptl);
71471 out:
71472 @@ -3064,40 +3281,6 @@ out_release:
71473 }
71474
71475 /*
71476 - * This is like a special single-page "expand_{down|up}wards()",
71477 - * except we must first make sure that 'address{-|+}PAGE_SIZE'
71478 - * doesn't hit another vma.
71479 - */
71480 -static inline int check_stack_guard_page(struct vm_area_struct *vma, unsigned long address)
71481 -{
71482 - address &= PAGE_MASK;
71483 - if ((vma->vm_flags & VM_GROWSDOWN) && address == vma->vm_start) {
71484 - struct vm_area_struct *prev = vma->vm_prev;
71485 -
71486 - /*
71487 - * Is there a mapping abutting this one below?
71488 - *
71489 - * That's only ok if it's the same stack mapping
71490 - * that has gotten split..
71491 - */
71492 - if (prev && prev->vm_end == address)
71493 - return prev->vm_flags & VM_GROWSDOWN ? 0 : -ENOMEM;
71494 -
71495 - expand_downwards(vma, address - PAGE_SIZE);
71496 - }
71497 - if ((vma->vm_flags & VM_GROWSUP) && address + PAGE_SIZE == vma->vm_end) {
71498 - struct vm_area_struct *next = vma->vm_next;
71499 -
71500 - /* As VM_GROWSDOWN but s/below/above/ */
71501 - if (next && next->vm_start == address + PAGE_SIZE)
71502 - return next->vm_flags & VM_GROWSUP ? 0 : -ENOMEM;
71503 -
71504 - expand_upwards(vma, address + PAGE_SIZE);
71505 - }
71506 - return 0;
71507 -}
71508 -
71509 -/*
71510 * We enter with non-exclusive mmap_sem (to exclude vma changes,
71511 * but allow concurrent faults), and pte mapped but not yet locked.
71512 * We return with mmap_sem still held, but pte unmapped and unlocked.
71513 @@ -3106,27 +3289,23 @@ static int do_anonymous_page(struct mm_struct *mm, struct vm_area_struct *vma,
71514 unsigned long address, pte_t *page_table, pmd_t *pmd,
71515 unsigned int flags)
71516 {
71517 - struct page *page;
71518 + struct page *page = NULL;
71519 spinlock_t *ptl;
71520 pte_t entry;
71521
71522 - pte_unmap(page_table);
71523 -
71524 - /* Check if we need to add a guard page to the stack */
71525 - if (check_stack_guard_page(vma, address) < 0)
71526 - return VM_FAULT_SIGBUS;
71527 -
71528 - /* Use the zero-page for reads */
71529 if (!(flags & FAULT_FLAG_WRITE)) {
71530 entry = pte_mkspecial(pfn_pte(my_zero_pfn(address),
71531 vma->vm_page_prot));
71532 - page_table = pte_offset_map_lock(mm, pmd, address, &ptl);
71533 + ptl = pte_lockptr(mm, pmd);
71534 + spin_lock(ptl);
71535 if (!pte_none(*page_table))
71536 goto unlock;
71537 goto setpte;
71538 }
71539
71540 /* Allocate our own private page. */
71541 + pte_unmap(page_table);
71542 +
71543 if (unlikely(anon_vma_prepare(vma)))
71544 goto oom;
71545 page = alloc_zeroed_user_highpage_movable(vma, address);
71546 @@ -3145,6 +3324,11 @@ static int do_anonymous_page(struct mm_struct *mm, struct vm_area_struct *vma,
71547 if (!pte_none(*page_table))
71548 goto release;
71549
71550 +#ifdef CONFIG_PAX_SEGMEXEC
71551 + if (pax_find_mirror_vma(vma))
71552 + BUG_ON(!trylock_page(page));
71553 +#endif
71554 +
71555 inc_mm_counter_fast(mm, MM_ANONPAGES);
71556 page_add_new_anon_rmap(page, vma, address);
71557 setpte:
71558 @@ -3152,6 +3336,12 @@ setpte:
71559
71560 /* No need to invalidate - it was non-present before */
71561 update_mmu_cache(vma, address, page_table);
71562 +
71563 +#ifdef CONFIG_PAX_SEGMEXEC
71564 + if (page)
71565 + pax_mirror_anon_pte(vma, address, page, ptl);
71566 +#endif
71567 +
71568 unlock:
71569 pte_unmap_unlock(page_table, ptl);
71570 return 0;
71571 @@ -3295,6 +3485,12 @@ static int __do_fault(struct mm_struct *mm, struct vm_area_struct *vma,
71572 */
71573 /* Only go through if we didn't race with anybody else... */
71574 if (likely(pte_same(*page_table, orig_pte))) {
71575 +
71576 +#ifdef CONFIG_PAX_SEGMEXEC
71577 + if (anon && pax_find_mirror_vma(vma))
71578 + BUG_ON(!trylock_page(page));
71579 +#endif
71580 +
71581 flush_icache_page(vma, page);
71582 entry = mk_pte(page, vma->vm_page_prot);
71583 if (flags & FAULT_FLAG_WRITE)
71584 @@ -3314,6 +3510,14 @@ static int __do_fault(struct mm_struct *mm, struct vm_area_struct *vma,
71585
71586 /* no need to invalidate: a not-present page won't be cached */
71587 update_mmu_cache(vma, address, page_table);
71588 +
71589 +#ifdef CONFIG_PAX_SEGMEXEC
71590 + if (anon)
71591 + pax_mirror_anon_pte(vma, address, page, ptl);
71592 + else
71593 + pax_mirror_file_pte(vma, address, page, ptl);
71594 +#endif
71595 +
71596 } else {
71597 if (cow_page)
71598 mem_cgroup_uncharge_page(cow_page);
71599 @@ -3467,6 +3671,12 @@ int handle_pte_fault(struct mm_struct *mm,
71600 if (flags & FAULT_FLAG_WRITE)
71601 flush_tlb_fix_spurious_fault(vma, address);
71602 }
71603 +
71604 +#ifdef CONFIG_PAX_SEGMEXEC
71605 + pax_mirror_pte(vma, address, pte, pmd, ptl);
71606 + return 0;
71607 +#endif
71608 +
71609 unlock:
71610 pte_unmap_unlock(pte, ptl);
71611 return 0;
71612 @@ -3483,6 +3693,10 @@ int handle_mm_fault(struct mm_struct *mm, struct vm_area_struct *vma,
71613 pmd_t *pmd;
71614 pte_t *pte;
71615
71616 +#ifdef CONFIG_PAX_SEGMEXEC
71617 + struct vm_area_struct *vma_m;
71618 +#endif
71619 +
71620 __set_current_state(TASK_RUNNING);
71621
71622 count_vm_event(PGFAULT);
71623 @@ -3494,6 +3708,34 @@ int handle_mm_fault(struct mm_struct *mm, struct vm_area_struct *vma,
71624 if (unlikely(is_vm_hugetlb_page(vma)))
71625 return hugetlb_fault(mm, vma, address, flags);
71626
71627 +#ifdef CONFIG_PAX_SEGMEXEC
71628 + vma_m = pax_find_mirror_vma(vma);
71629 + if (vma_m) {
71630 + unsigned long address_m;
71631 + pgd_t *pgd_m;
71632 + pud_t *pud_m;
71633 + pmd_t *pmd_m;
71634 +
71635 + if (vma->vm_start > vma_m->vm_start) {
71636 + address_m = address;
71637 + address -= SEGMEXEC_TASK_SIZE;
71638 + vma = vma_m;
71639 + } else
71640 + address_m = address + SEGMEXEC_TASK_SIZE;
71641 +
71642 + pgd_m = pgd_offset(mm, address_m);
71643 + pud_m = pud_alloc(mm, pgd_m, address_m);
71644 + if (!pud_m)
71645 + return VM_FAULT_OOM;
71646 + pmd_m = pmd_alloc(mm, pud_m, address_m);
71647 + if (!pmd_m)
71648 + return VM_FAULT_OOM;
71649 + if (!pmd_present(*pmd_m) && __pte_alloc(mm, vma_m, pmd_m, address_m))
71650 + return VM_FAULT_OOM;
71651 + pax_unmap_mirror_pte(vma_m, address_m, pmd_m);
71652 + }
71653 +#endif
71654 +
71655 retry:
71656 pgd = pgd_offset(mm, address);
71657 pud = pud_alloc(mm, pgd, address);
71658 @@ -3535,7 +3777,7 @@ retry:
71659 * run pte_offset_map on the pmd, if an huge pmd could
71660 * materialize from under us from a different thread.
71661 */
71662 - if (unlikely(pmd_none(*pmd)) && __pte_alloc(mm, vma, pmd, address))
71663 + if (unlikely(pmd_none(*pmd) && __pte_alloc(mm, vma, pmd, address)))
71664 return VM_FAULT_OOM;
71665 /* if an huge pmd materialized from under us just retry later */
71666 if (unlikely(pmd_trans_huge(*pmd)))
71667 @@ -3572,6 +3814,23 @@ int __pud_alloc(struct mm_struct *mm, pgd_t *pgd, unsigned long address)
71668 spin_unlock(&mm->page_table_lock);
71669 return 0;
71670 }
71671 +
71672 +int __pud_alloc_kernel(struct mm_struct *mm, pgd_t *pgd, unsigned long address)
71673 +{
71674 + pud_t *new = pud_alloc_one(mm, address);
71675 + if (!new)
71676 + return -ENOMEM;
71677 +
71678 + smp_wmb(); /* See comment in __pte_alloc */
71679 +
71680 + spin_lock(&mm->page_table_lock);
71681 + if (pgd_present(*pgd)) /* Another has populated it */
71682 + pud_free(mm, new);
71683 + else
71684 + pgd_populate_kernel(mm, pgd, new);
71685 + spin_unlock(&mm->page_table_lock);
71686 + return 0;
71687 +}
71688 #endif /* __PAGETABLE_PUD_FOLDED */
71689
71690 #ifndef __PAGETABLE_PMD_FOLDED
71691 @@ -3602,6 +3861,30 @@ int __pmd_alloc(struct mm_struct *mm, pud_t *pud, unsigned long address)
71692 spin_unlock(&mm->page_table_lock);
71693 return 0;
71694 }
71695 +
71696 +int __pmd_alloc_kernel(struct mm_struct *mm, pud_t *pud, unsigned long address)
71697 +{
71698 + pmd_t *new = pmd_alloc_one(mm, address);
71699 + if (!new)
71700 + return -ENOMEM;
71701 +
71702 + smp_wmb(); /* See comment in __pte_alloc */
71703 +
71704 + spin_lock(&mm->page_table_lock);
71705 +#ifndef __ARCH_HAS_4LEVEL_HACK
71706 + if (pud_present(*pud)) /* Another has populated it */
71707 + pmd_free(mm, new);
71708 + else
71709 + pud_populate_kernel(mm, pud, new);
71710 +#else
71711 + if (pgd_present(*pud)) /* Another has populated it */
71712 + pmd_free(mm, new);
71713 + else
71714 + pgd_populate_kernel(mm, pud, new);
71715 +#endif /* __ARCH_HAS_4LEVEL_HACK */
71716 + spin_unlock(&mm->page_table_lock);
71717 + return 0;
71718 +}
71719 #endif /* __PAGETABLE_PMD_FOLDED */
71720
71721 int make_pages_present(unsigned long addr, unsigned long end)
71722 @@ -3639,7 +3922,7 @@ static int __init gate_vma_init(void)
71723 gate_vma.vm_start = FIXADDR_USER_START;
71724 gate_vma.vm_end = FIXADDR_USER_END;
71725 gate_vma.vm_flags = VM_READ | VM_MAYREAD | VM_EXEC | VM_MAYEXEC;
71726 - gate_vma.vm_page_prot = __P101;
71727 + gate_vma.vm_page_prot = vm_get_page_prot(gate_vma.vm_flags);
71728
71729 return 0;
71730 }
71731 diff --git a/mm/mempolicy.c b/mm/mempolicy.c
71732 index 1d771e4..f9a6808 100644
71733 --- a/mm/mempolicy.c
71734 +++ b/mm/mempolicy.c
71735 @@ -619,6 +619,10 @@ static int mbind_range(struct mm_struct *mm, unsigned long start,
71736 unsigned long vmstart;
71737 unsigned long vmend;
71738
71739 +#ifdef CONFIG_PAX_SEGMEXEC
71740 + struct vm_area_struct *vma_m;
71741 +#endif
71742 +
71743 vma = find_vma(mm, start);
71744 if (!vma || vma->vm_start > start)
71745 return -EFAULT;
71746 @@ -672,6 +676,16 @@ static int mbind_range(struct mm_struct *mm, unsigned long start,
71747 if (err)
71748 goto out;
71749 }
71750 +
71751 +#ifdef CONFIG_PAX_SEGMEXEC
71752 + vma_m = pax_find_mirror_vma(vma);
71753 + if (vma_m && vma_m->vm_ops && vma_m->vm_ops->set_policy) {
71754 + err = vma_m->vm_ops->set_policy(vma_m, new_pol);
71755 + if (err)
71756 + goto out;
71757 + }
71758 +#endif
71759 +
71760 }
71761
71762 out:
71763 @@ -1125,6 +1139,17 @@ static long do_mbind(unsigned long start, unsigned long len,
71764
71765 if (end < start)
71766 return -EINVAL;
71767 +
71768 +#ifdef CONFIG_PAX_SEGMEXEC
71769 + if (mm->pax_flags & MF_PAX_SEGMEXEC) {
71770 + if (end > SEGMEXEC_TASK_SIZE)
71771 + return -EINVAL;
71772 + } else
71773 +#endif
71774 +
71775 + if (end > TASK_SIZE)
71776 + return -EINVAL;
71777 +
71778 if (end == start)
71779 return 0;
71780
71781 @@ -1348,8 +1373,7 @@ SYSCALL_DEFINE4(migrate_pages, pid_t, pid, unsigned long, maxnode,
71782 */
71783 tcred = __task_cred(task);
71784 if (!uid_eq(cred->euid, tcred->suid) && !uid_eq(cred->euid, tcred->uid) &&
71785 - !uid_eq(cred->uid, tcred->suid) && !uid_eq(cred->uid, tcred->uid) &&
71786 - !capable(CAP_SYS_NICE)) {
71787 + !uid_eq(cred->uid, tcred->suid) && !capable(CAP_SYS_NICE)) {
71788 rcu_read_unlock();
71789 err = -EPERM;
71790 goto out_put;
71791 @@ -1380,6 +1404,15 @@ SYSCALL_DEFINE4(migrate_pages, pid_t, pid, unsigned long, maxnode,
71792 goto out;
71793 }
71794
71795 +#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
71796 + if (mm != current->mm &&
71797 + (mm->pax_flags & MF_PAX_RANDMMAP || mm->pax_flags & MF_PAX_SEGMEXEC)) {
71798 + mmput(mm);
71799 + err = -EPERM;
71800 + goto out;
71801 + }
71802 +#endif
71803 +
71804 err = do_migrate_pages(mm, old, new,
71805 capable(CAP_SYS_NICE) ? MPOL_MF_MOVE_ALL : MPOL_MF_MOVE);
71806
71807 diff --git a/mm/mlock.c b/mm/mlock.c
71808 index ef726e8..cd7f1ec 100644
71809 --- a/mm/mlock.c
71810 +++ b/mm/mlock.c
71811 @@ -13,6 +13,7 @@
71812 #include <linux/pagemap.h>
71813 #include <linux/mempolicy.h>
71814 #include <linux/syscalls.h>
71815 +#include <linux/security.h>
71816 #include <linux/sched.h>
71817 #include <linux/export.h>
71818 #include <linux/rmap.h>
71819 @@ -376,7 +377,7 @@ static int do_mlock(unsigned long start, size_t len, int on)
71820 {
71821 unsigned long nstart, end, tmp;
71822 struct vm_area_struct * vma, * prev;
71823 - int error;
71824 + int error = 0;
71825
71826 VM_BUG_ON(start & ~PAGE_MASK);
71827 VM_BUG_ON(len != PAGE_ALIGN(len));
71828 @@ -385,6 +386,9 @@ static int do_mlock(unsigned long start, size_t len, int on)
71829 return -EINVAL;
71830 if (end == start)
71831 return 0;
71832 + if (end > TASK_SIZE)
71833 + return -EINVAL;
71834 +
71835 vma = find_vma(current->mm, start);
71836 if (!vma || vma->vm_start > start)
71837 return -ENOMEM;
71838 @@ -396,6 +400,11 @@ static int do_mlock(unsigned long start, size_t len, int on)
71839 for (nstart = start ; ; ) {
71840 vm_flags_t newflags;
71841
71842 +#ifdef CONFIG_PAX_SEGMEXEC
71843 + if ((current->mm->pax_flags & MF_PAX_SEGMEXEC) && (vma->vm_start >= SEGMEXEC_TASK_SIZE))
71844 + break;
71845 +#endif
71846 +
71847 /* Here we know that vma->vm_start <= nstart < vma->vm_end. */
71848
71849 newflags = vma->vm_flags | VM_LOCKED;
71850 @@ -501,6 +510,7 @@ SYSCALL_DEFINE2(mlock, unsigned long, start, size_t, len)
71851 lock_limit >>= PAGE_SHIFT;
71852
71853 /* check against resource limits */
71854 + gr_learn_resource(current, RLIMIT_MEMLOCK, (current->mm->locked_vm << PAGE_SHIFT) + len, 1);
71855 if ((locked <= lock_limit) || capable(CAP_IPC_LOCK))
71856 error = do_mlock(start, len, 1);
71857 up_write(&current->mm->mmap_sem);
71858 @@ -524,17 +534,23 @@ SYSCALL_DEFINE2(munlock, unsigned long, start, size_t, len)
71859 static int do_mlockall(int flags)
71860 {
71861 struct vm_area_struct * vma, * prev = NULL;
71862 - unsigned int def_flags = 0;
71863
71864 if (flags & MCL_FUTURE)
71865 - def_flags = VM_LOCKED;
71866 - current->mm->def_flags = def_flags;
71867 + current->mm->def_flags |= VM_LOCKED;
71868 + else
71869 + current->mm->def_flags &= ~VM_LOCKED;
71870 if (flags == MCL_FUTURE)
71871 goto out;
71872
71873 for (vma = current->mm->mmap; vma ; vma = prev->vm_next) {
71874 vm_flags_t newflags;
71875
71876 +#ifdef CONFIG_PAX_SEGMEXEC
71877 + if ((current->mm->pax_flags & MF_PAX_SEGMEXEC) && (vma->vm_start >= SEGMEXEC_TASK_SIZE))
71878 + break;
71879 +#endif
71880 +
71881 + BUG_ON(vma->vm_end > TASK_SIZE);
71882 newflags = vma->vm_flags | VM_LOCKED;
71883 if (!(flags & MCL_CURRENT))
71884 newflags &= ~VM_LOCKED;
71885 @@ -567,6 +583,7 @@ SYSCALL_DEFINE1(mlockall, int, flags)
71886 lock_limit >>= PAGE_SHIFT;
71887
71888 ret = -ENOMEM;
71889 + gr_learn_resource(current, RLIMIT_MEMLOCK, current->mm->total_vm << PAGE_SHIFT, 1);
71890 if (!(flags & MCL_CURRENT) || (current->mm->total_vm <= lock_limit) ||
71891 capable(CAP_IPC_LOCK))
71892 ret = do_mlockall(flags);
71893 diff --git a/mm/mmap.c b/mm/mmap.c
71894 index 3edfcdf..4a27ae9 100644
71895 --- a/mm/mmap.c
71896 +++ b/mm/mmap.c
71897 @@ -47,6 +47,16 @@
71898 #define arch_rebalance_pgtables(addr, len) (addr)
71899 #endif
71900
71901 +static inline void verify_mm_writelocked(struct mm_struct *mm)
71902 +{
71903 +#if defined(CONFIG_DEBUG_VM) || defined(CONFIG_PAX)
71904 + if (unlikely(down_read_trylock(&mm->mmap_sem))) {
71905 + up_read(&mm->mmap_sem);
71906 + BUG();
71907 + }
71908 +#endif
71909 +}
71910 +
71911 static void unmap_region(struct mm_struct *mm,
71912 struct vm_area_struct *vma, struct vm_area_struct *prev,
71913 unsigned long start, unsigned long end);
71914 @@ -72,22 +82,32 @@ static void unmap_region(struct mm_struct *mm,
71915 * x: (no) no x: (no) yes x: (no) yes x: (yes) yes
71916 *
71917 */
71918 -pgprot_t protection_map[16] = {
71919 +pgprot_t protection_map[16] __read_only = {
71920 __P000, __P001, __P010, __P011, __P100, __P101, __P110, __P111,
71921 __S000, __S001, __S010, __S011, __S100, __S101, __S110, __S111
71922 };
71923
71924 -pgprot_t vm_get_page_prot(unsigned long vm_flags)
71925 +pgprot_t vm_get_page_prot(vm_flags_t vm_flags)
71926 {
71927 - return __pgprot(pgprot_val(protection_map[vm_flags &
71928 + pgprot_t prot = __pgprot(pgprot_val(protection_map[vm_flags &
71929 (VM_READ|VM_WRITE|VM_EXEC|VM_SHARED)]) |
71930 pgprot_val(arch_vm_get_page_prot(vm_flags)));
71931 +
71932 +#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_X86_32)
71933 + if (!(__supported_pte_mask & _PAGE_NX) &&
71934 + (vm_flags & (VM_PAGEEXEC | VM_EXEC)) == VM_PAGEEXEC &&
71935 + (vm_flags & (VM_READ | VM_WRITE)))
71936 + prot = __pgprot(pte_val(pte_exprotect(__pte(pgprot_val(prot)))));
71937 +#endif
71938 +
71939 + return prot;
71940 }
71941 EXPORT_SYMBOL(vm_get_page_prot);
71942
71943 int sysctl_overcommit_memory __read_mostly = OVERCOMMIT_GUESS; /* heuristic overcommit */
71944 int sysctl_overcommit_ratio __read_mostly = 50; /* default is 50% */
71945 int sysctl_max_map_count __read_mostly = DEFAULT_MAX_MAP_COUNT;
71946 +unsigned long sysctl_heap_stack_gap __read_mostly = 64*1024;
71947 /*
71948 * Make sure vm_committed_as in one cacheline and not cacheline shared with
71949 * other variables. It can be updated by several CPUs frequently.
71950 @@ -229,6 +249,7 @@ static struct vm_area_struct *remove_vma(struct vm_area_struct *vma)
71951 struct vm_area_struct *next = vma->vm_next;
71952
71953 might_sleep();
71954 + BUG_ON(vma->vm_mirror);
71955 if (vma->vm_ops && vma->vm_ops->close)
71956 vma->vm_ops->close(vma);
71957 if (vma->vm_file) {
71958 @@ -275,6 +296,7 @@ SYSCALL_DEFINE1(brk, unsigned long, brk)
71959 * not page aligned -Ram Gupta
71960 */
71961 rlim = rlimit(RLIMIT_DATA);
71962 + gr_learn_resource(current, RLIMIT_DATA, (brk - mm->start_brk) + (mm->end_data - mm->start_data), 1);
71963 if (rlim < RLIM_INFINITY && (brk - mm->start_brk) +
71964 (mm->end_data - mm->start_data) > rlim)
71965 goto out;
71966 @@ -708,6 +730,12 @@ static int
71967 can_vma_merge_before(struct vm_area_struct *vma, unsigned long vm_flags,
71968 struct anon_vma *anon_vma, struct file *file, pgoff_t vm_pgoff)
71969 {
71970 +
71971 +#ifdef CONFIG_PAX_SEGMEXEC
71972 + if ((vma->vm_mm->pax_flags & MF_PAX_SEGMEXEC) && vma->vm_start == SEGMEXEC_TASK_SIZE)
71973 + return 0;
71974 +#endif
71975 +
71976 if (is_mergeable_vma(vma, file, vm_flags) &&
71977 is_mergeable_anon_vma(anon_vma, vma->anon_vma, vma)) {
71978 if (vma->vm_pgoff == vm_pgoff)
71979 @@ -727,6 +755,12 @@ static int
71980 can_vma_merge_after(struct vm_area_struct *vma, unsigned long vm_flags,
71981 struct anon_vma *anon_vma, struct file *file, pgoff_t vm_pgoff)
71982 {
71983 +
71984 +#ifdef CONFIG_PAX_SEGMEXEC
71985 + if ((vma->vm_mm->pax_flags & MF_PAX_SEGMEXEC) && vma->vm_end == SEGMEXEC_TASK_SIZE)
71986 + return 0;
71987 +#endif
71988 +
71989 if (is_mergeable_vma(vma, file, vm_flags) &&
71990 is_mergeable_anon_vma(anon_vma, vma->anon_vma, vma)) {
71991 pgoff_t vm_pglen;
71992 @@ -769,13 +803,20 @@ can_vma_merge_after(struct vm_area_struct *vma, unsigned long vm_flags,
71993 struct vm_area_struct *vma_merge(struct mm_struct *mm,
71994 struct vm_area_struct *prev, unsigned long addr,
71995 unsigned long end, unsigned long vm_flags,
71996 - struct anon_vma *anon_vma, struct file *file,
71997 + struct anon_vma *anon_vma, struct file *file,
71998 pgoff_t pgoff, struct mempolicy *policy)
71999 {
72000 pgoff_t pglen = (end - addr) >> PAGE_SHIFT;
72001 struct vm_area_struct *area, *next;
72002 int err;
72003
72004 +#ifdef CONFIG_PAX_SEGMEXEC
72005 + unsigned long addr_m = addr + SEGMEXEC_TASK_SIZE, end_m = end + SEGMEXEC_TASK_SIZE;
72006 + struct vm_area_struct *area_m = NULL, *next_m = NULL, *prev_m = NULL;
72007 +
72008 + BUG_ON((mm->pax_flags & MF_PAX_SEGMEXEC) && SEGMEXEC_TASK_SIZE < end);
72009 +#endif
72010 +
72011 /*
72012 * We later require that vma->vm_flags == vm_flags,
72013 * so this tests vma->vm_flags & VM_SPECIAL, too.
72014 @@ -791,6 +832,15 @@ struct vm_area_struct *vma_merge(struct mm_struct *mm,
72015 if (next && next->vm_end == end) /* cases 6, 7, 8 */
72016 next = next->vm_next;
72017
72018 +#ifdef CONFIG_PAX_SEGMEXEC
72019 + if (prev)
72020 + prev_m = pax_find_mirror_vma(prev);
72021 + if (area)
72022 + area_m = pax_find_mirror_vma(area);
72023 + if (next)
72024 + next_m = pax_find_mirror_vma(next);
72025 +#endif
72026 +
72027 /*
72028 * Can it merge with the predecessor?
72029 */
72030 @@ -810,9 +860,24 @@ struct vm_area_struct *vma_merge(struct mm_struct *mm,
72031 /* cases 1, 6 */
72032 err = vma_adjust(prev, prev->vm_start,
72033 next->vm_end, prev->vm_pgoff, NULL);
72034 - } else /* cases 2, 5, 7 */
72035 +
72036 +#ifdef CONFIG_PAX_SEGMEXEC
72037 + if (!err && prev_m)
72038 + err = vma_adjust(prev_m, prev_m->vm_start,
72039 + next_m->vm_end, prev_m->vm_pgoff, NULL);
72040 +#endif
72041 +
72042 + } else { /* cases 2, 5, 7 */
72043 err = vma_adjust(prev, prev->vm_start,
72044 end, prev->vm_pgoff, NULL);
72045 +
72046 +#ifdef CONFIG_PAX_SEGMEXEC
72047 + if (!err && prev_m)
72048 + err = vma_adjust(prev_m, prev_m->vm_start,
72049 + end_m, prev_m->vm_pgoff, NULL);
72050 +#endif
72051 +
72052 + }
72053 if (err)
72054 return NULL;
72055 khugepaged_enter_vma_merge(prev);
72056 @@ -826,12 +891,27 @@ struct vm_area_struct *vma_merge(struct mm_struct *mm,
72057 mpol_equal(policy, vma_policy(next)) &&
72058 can_vma_merge_before(next, vm_flags,
72059 anon_vma, file, pgoff+pglen)) {
72060 - if (prev && addr < prev->vm_end) /* case 4 */
72061 + if (prev && addr < prev->vm_end) { /* case 4 */
72062 err = vma_adjust(prev, prev->vm_start,
72063 addr, prev->vm_pgoff, NULL);
72064 - else /* cases 3, 8 */
72065 +
72066 +#ifdef CONFIG_PAX_SEGMEXEC
72067 + if (!err && prev_m)
72068 + err = vma_adjust(prev_m, prev_m->vm_start,
72069 + addr_m, prev_m->vm_pgoff, NULL);
72070 +#endif
72071 +
72072 + } else { /* cases 3, 8 */
72073 err = vma_adjust(area, addr, next->vm_end,
72074 next->vm_pgoff - pglen, NULL);
72075 +
72076 +#ifdef CONFIG_PAX_SEGMEXEC
72077 + if (!err && area_m)
72078 + err = vma_adjust(area_m, addr_m, next_m->vm_end,
72079 + next_m->vm_pgoff - pglen, NULL);
72080 +#endif
72081 +
72082 + }
72083 if (err)
72084 return NULL;
72085 khugepaged_enter_vma_merge(area);
72086 @@ -940,14 +1020,11 @@ none:
72087 void vm_stat_account(struct mm_struct *mm, unsigned long flags,
72088 struct file *file, long pages)
72089 {
72090 - const unsigned long stack_flags
72091 - = VM_STACK_FLAGS & (VM_GROWSUP|VM_GROWSDOWN);
72092 -
72093 if (file) {
72094 mm->shared_vm += pages;
72095 if ((flags & (VM_EXEC|VM_WRITE)) == VM_EXEC)
72096 mm->exec_vm += pages;
72097 - } else if (flags & stack_flags)
72098 + } else if (flags & (VM_GROWSUP|VM_GROWSDOWN))
72099 mm->stack_vm += pages;
72100 if (flags & (VM_RESERVED|VM_IO))
72101 mm->reserved_vm += pages;
72102 @@ -985,7 +1062,7 @@ unsigned long do_mmap_pgoff(struct file *file, unsigned long addr,
72103 * (the exception is when the underlying filesystem is noexec
72104 * mounted, in which case we dont add PROT_EXEC.)
72105 */
72106 - if ((prot & PROT_READ) && (current->personality & READ_IMPLIES_EXEC))
72107 + if ((prot & (PROT_READ | PROT_WRITE)) && (current->personality & READ_IMPLIES_EXEC))
72108 if (!(file && (file->f_path.mnt->mnt_flags & MNT_NOEXEC)))
72109 prot |= PROT_EXEC;
72110
72111 @@ -1011,7 +1088,7 @@ unsigned long do_mmap_pgoff(struct file *file, unsigned long addr,
72112 /* Obtain the address to map to. we verify (or select) it and ensure
72113 * that it represents a valid section of the address space.
72114 */
72115 - addr = get_unmapped_area(file, addr, len, pgoff, flags);
72116 + addr = get_unmapped_area(file, addr, len, pgoff, flags | ((prot & PROT_EXEC) ? MAP_EXECUTABLE : 0));
72117 if (addr & ~PAGE_MASK)
72118 return addr;
72119
72120 @@ -1022,6 +1099,36 @@ unsigned long do_mmap_pgoff(struct file *file, unsigned long addr,
72121 vm_flags = calc_vm_prot_bits(prot) | calc_vm_flag_bits(flags) |
72122 mm->def_flags | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC;
72123
72124 +#ifdef CONFIG_PAX_MPROTECT
72125 + if (mm->pax_flags & MF_PAX_MPROTECT) {
72126 +#ifndef CONFIG_PAX_MPROTECT_COMPAT
72127 + if ((vm_flags & (VM_WRITE | VM_EXEC)) == (VM_WRITE | VM_EXEC)) {
72128 + gr_log_rwxmmap(file);
72129 +
72130 +#ifdef CONFIG_PAX_EMUPLT
72131 + vm_flags &= ~VM_EXEC;
72132 +#else
72133 + return -EPERM;
72134 +#endif
72135 +
72136 + }
72137 +
72138 + if (!(vm_flags & VM_EXEC))
72139 + vm_flags &= ~VM_MAYEXEC;
72140 +#else
72141 + if ((vm_flags & (VM_WRITE | VM_EXEC)) != VM_EXEC)
72142 + vm_flags &= ~(VM_EXEC | VM_MAYEXEC);
72143 +#endif
72144 + else
72145 + vm_flags &= ~VM_MAYWRITE;
72146 + }
72147 +#endif
72148 +
72149 +#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_X86_32)
72150 + if ((mm->pax_flags & MF_PAX_PAGEEXEC) && file)
72151 + vm_flags &= ~VM_PAGEEXEC;
72152 +#endif
72153 +
72154 if (flags & MAP_LOCKED)
72155 if (!can_do_mlock())
72156 return -EPERM;
72157 @@ -1033,6 +1140,7 @@ unsigned long do_mmap_pgoff(struct file *file, unsigned long addr,
72158 locked += mm->locked_vm;
72159 lock_limit = rlimit(RLIMIT_MEMLOCK);
72160 lock_limit >>= PAGE_SHIFT;
72161 + gr_learn_resource(current, RLIMIT_MEMLOCK, locked << PAGE_SHIFT, 1);
72162 if (locked > lock_limit && !capable(CAP_IPC_LOCK))
72163 return -EAGAIN;
72164 }
72165 @@ -1099,6 +1207,9 @@ unsigned long do_mmap_pgoff(struct file *file, unsigned long addr,
72166 }
72167 }
72168
72169 + if (!gr_acl_handle_mmap(file, prot))
72170 + return -EACCES;
72171 +
72172 return mmap_region(file, addr, len, flags, vm_flags, pgoff);
72173 }
72174
72175 @@ -1175,7 +1286,7 @@ int vma_wants_writenotify(struct vm_area_struct *vma)
72176 vm_flags_t vm_flags = vma->vm_flags;
72177
72178 /* If it was private or non-writable, the write bit is already clear */
72179 - if ((vm_flags & (VM_WRITE|VM_SHARED)) != ((VM_WRITE|VM_SHARED)))
72180 + if ((vm_flags & (VM_WRITE|VM_SHARED)) != (VM_WRITE|VM_SHARED))
72181 return 0;
72182
72183 /* The backer wishes to know when pages are first written to? */
72184 @@ -1224,14 +1335,24 @@ unsigned long mmap_region(struct file *file, unsigned long addr,
72185 unsigned long charged = 0;
72186 struct inode *inode = file ? file->f_path.dentry->d_inode : NULL;
72187
72188 +#ifdef CONFIG_PAX_SEGMEXEC
72189 + struct vm_area_struct *vma_m = NULL;
72190 +#endif
72191 +
72192 + /*
72193 + * mm->mmap_sem is required to protect against another thread
72194 + * changing the mappings in case we sleep.
72195 + */
72196 + verify_mm_writelocked(mm);
72197 +
72198 /* Clear old maps */
72199 error = -ENOMEM;
72200 -munmap_back:
72201 vma = find_vma_prepare(mm, addr, &prev, &rb_link, &rb_parent);
72202 if (vma && vma->vm_start < addr + len) {
72203 if (do_munmap(mm, addr, len))
72204 return -ENOMEM;
72205 - goto munmap_back;
72206 + vma = find_vma_prepare(mm, addr, &prev, &rb_link, &rb_parent);
72207 + BUG_ON(vma && vma->vm_start < addr + len);
72208 }
72209
72210 /* Check against address space limit. */
72211 @@ -1280,6 +1401,16 @@ munmap_back:
72212 goto unacct_error;
72213 }
72214
72215 +#ifdef CONFIG_PAX_SEGMEXEC
72216 + if ((mm->pax_flags & MF_PAX_SEGMEXEC) && (vm_flags & VM_EXEC)) {
72217 + vma_m = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
72218 + if (!vma_m) {
72219 + error = -ENOMEM;
72220 + goto free_vma;
72221 + }
72222 + }
72223 +#endif
72224 +
72225 vma->vm_mm = mm;
72226 vma->vm_start = addr;
72227 vma->vm_end = addr + len;
72228 @@ -1304,6 +1435,19 @@ munmap_back:
72229 error = file->f_op->mmap(file, vma);
72230 if (error)
72231 goto unmap_and_free_vma;
72232 +
72233 +#ifdef CONFIG_PAX_SEGMEXEC
72234 + if (vma_m && (vm_flags & VM_EXECUTABLE))
72235 + added_exe_file_vma(mm);
72236 +#endif
72237 +
72238 +#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_X86_32)
72239 + if ((mm->pax_flags & MF_PAX_PAGEEXEC) && !(vma->vm_flags & VM_SPECIAL)) {
72240 + vma->vm_flags |= VM_PAGEEXEC;
72241 + vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
72242 + }
72243 +#endif
72244 +
72245 if (vm_flags & VM_EXECUTABLE)
72246 added_exe_file_vma(mm);
72247
72248 @@ -1341,6 +1485,11 @@ munmap_back:
72249 vma_link(mm, vma, prev, rb_link, rb_parent);
72250 file = vma->vm_file;
72251
72252 +#ifdef CONFIG_PAX_SEGMEXEC
72253 + if (vma_m)
72254 + BUG_ON(pax_mirror_vma(vma_m, vma));
72255 +#endif
72256 +
72257 /* Once vma denies write, undo our temporary denial count */
72258 if (correct_wcount)
72259 atomic_inc(&inode->i_writecount);
72260 @@ -1349,6 +1498,7 @@ out:
72261
72262 mm->total_vm += len >> PAGE_SHIFT;
72263 vm_stat_account(mm, vm_flags, file, len >> PAGE_SHIFT);
72264 + track_exec_limit(mm, addr, addr + len, vm_flags);
72265 if (vm_flags & VM_LOCKED) {
72266 if (!mlock_vma_pages_range(vma, addr, addr + len))
72267 mm->locked_vm += (len >> PAGE_SHIFT);
72268 @@ -1371,6 +1521,12 @@ unmap_and_free_vma:
72269 unmap_region(mm, vma, prev, vma->vm_start, vma->vm_end);
72270 charged = 0;
72271 free_vma:
72272 +
72273 +#ifdef CONFIG_PAX_SEGMEXEC
72274 + if (vma_m)
72275 + kmem_cache_free(vm_area_cachep, vma_m);
72276 +#endif
72277 +
72278 kmem_cache_free(vm_area_cachep, vma);
72279 unacct_error:
72280 if (charged)
72281 @@ -1378,6 +1534,44 @@ unacct_error:
72282 return error;
72283 }
72284
72285 +bool check_heap_stack_gap(const struct vm_area_struct *vma, unsigned long addr, unsigned long len)
72286 +{
72287 + if (!vma) {
72288 +#ifdef CONFIG_STACK_GROWSUP
72289 + if (addr > sysctl_heap_stack_gap)
72290 + vma = find_vma(current->mm, addr - sysctl_heap_stack_gap);
72291 + else
72292 + vma = find_vma(current->mm, 0);
72293 + if (vma && (vma->vm_flags & VM_GROWSUP))
72294 + return false;
72295 +#endif
72296 + return true;
72297 + }
72298 +
72299 + if (addr + len > vma->vm_start)
72300 + return false;
72301 +
72302 + if (vma->vm_flags & VM_GROWSDOWN)
72303 + return sysctl_heap_stack_gap <= vma->vm_start - addr - len;
72304 +#ifdef CONFIG_STACK_GROWSUP
72305 + else if (vma->vm_prev && (vma->vm_prev->vm_flags & VM_GROWSUP))
72306 + return addr - vma->vm_prev->vm_end <= sysctl_heap_stack_gap;
72307 +#endif
72308 +
72309 + return true;
72310 +}
72311 +
72312 +unsigned long skip_heap_stack_gap(const struct vm_area_struct *vma, unsigned long len)
72313 +{
72314 + if (vma->vm_start < len)
72315 + return -ENOMEM;
72316 + if (!(vma->vm_flags & VM_GROWSDOWN))
72317 + return vma->vm_start - len;
72318 + if (sysctl_heap_stack_gap <= vma->vm_start - len)
72319 + return vma->vm_start - len - sysctl_heap_stack_gap;
72320 + return -ENOMEM;
72321 +}
72322 +
72323 /* Get an address range which is currently unmapped.
72324 * For shmat() with addr=0.
72325 *
72326 @@ -1404,18 +1598,23 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
72327 if (flags & MAP_FIXED)
72328 return addr;
72329
72330 +#ifdef CONFIG_PAX_RANDMMAP
72331 + if (!(mm->pax_flags & MF_PAX_RANDMMAP))
72332 +#endif
72333 +
72334 if (addr) {
72335 addr = PAGE_ALIGN(addr);
72336 - vma = find_vma(mm, addr);
72337 - if (TASK_SIZE - len >= addr &&
72338 - (!vma || addr + len <= vma->vm_start))
72339 - return addr;
72340 + if (TASK_SIZE - len >= addr) {
72341 + vma = find_vma(mm, addr);
72342 + if (check_heap_stack_gap(vma, addr, len))
72343 + return addr;
72344 + }
72345 }
72346 if (len > mm->cached_hole_size) {
72347 - start_addr = addr = mm->free_area_cache;
72348 + start_addr = addr = mm->free_area_cache;
72349 } else {
72350 - start_addr = addr = TASK_UNMAPPED_BASE;
72351 - mm->cached_hole_size = 0;
72352 + start_addr = addr = mm->mmap_base;
72353 + mm->cached_hole_size = 0;
72354 }
72355
72356 full_search:
72357 @@ -1426,34 +1625,40 @@ full_search:
72358 * Start a new search - just in case we missed
72359 * some holes.
72360 */
72361 - if (start_addr != TASK_UNMAPPED_BASE) {
72362 - addr = TASK_UNMAPPED_BASE;
72363 - start_addr = addr;
72364 + if (start_addr != mm->mmap_base) {
72365 + start_addr = addr = mm->mmap_base;
72366 mm->cached_hole_size = 0;
72367 goto full_search;
72368 }
72369 return -ENOMEM;
72370 }
72371 - if (!vma || addr + len <= vma->vm_start) {
72372 - /*
72373 - * Remember the place where we stopped the search:
72374 - */
72375 - mm->free_area_cache = addr + len;
72376 - return addr;
72377 - }
72378 + if (check_heap_stack_gap(vma, addr, len))
72379 + break;
72380 if (addr + mm->cached_hole_size < vma->vm_start)
72381 mm->cached_hole_size = vma->vm_start - addr;
72382 addr = vma->vm_end;
72383 }
72384 +
72385 + /*
72386 + * Remember the place where we stopped the search:
72387 + */
72388 + mm->free_area_cache = addr + len;
72389 + return addr;
72390 }
72391 #endif
72392
72393 void arch_unmap_area(struct mm_struct *mm, unsigned long addr)
72394 {
72395 +
72396 +#ifdef CONFIG_PAX_SEGMEXEC
72397 + if ((mm->pax_flags & MF_PAX_SEGMEXEC) && SEGMEXEC_TASK_SIZE <= addr)
72398 + return;
72399 +#endif
72400 +
72401 /*
72402 * Is this a new hole at the lowest possible address?
72403 */
72404 - if (addr >= TASK_UNMAPPED_BASE && addr < mm->free_area_cache)
72405 + if (addr >= mm->mmap_base && addr < mm->free_area_cache)
72406 mm->free_area_cache = addr;
72407 }
72408
72409 @@ -1469,7 +1674,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
72410 {
72411 struct vm_area_struct *vma;
72412 struct mm_struct *mm = current->mm;
72413 - unsigned long addr = addr0, start_addr;
72414 + unsigned long base = mm->mmap_base, addr = addr0, start_addr;
72415
72416 /* requested length too big for entire address space */
72417 if (len > TASK_SIZE)
72418 @@ -1478,13 +1683,18 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
72419 if (flags & MAP_FIXED)
72420 return addr;
72421
72422 +#ifdef CONFIG_PAX_RANDMMAP
72423 + if (!(mm->pax_flags & MF_PAX_RANDMMAP))
72424 +#endif
72425 +
72426 /* requesting a specific address */
72427 if (addr) {
72428 addr = PAGE_ALIGN(addr);
72429 - vma = find_vma(mm, addr);
72430 - if (TASK_SIZE - len >= addr &&
72431 - (!vma || addr + len <= vma->vm_start))
72432 - return addr;
72433 + if (TASK_SIZE - len >= addr) {
72434 + vma = find_vma(mm, addr);
72435 + if (check_heap_stack_gap(vma, addr, len))
72436 + return addr;
72437 + }
72438 }
72439
72440 /* check if free_area_cache is useful for us */
72441 @@ -1508,7 +1718,7 @@ try_again:
72442 * return with success:
72443 */
72444 vma = find_vma(mm, addr);
72445 - if (!vma || addr+len <= vma->vm_start)
72446 + if (check_heap_stack_gap(vma, addr, len))
72447 /* remember the address as a hint for next time */
72448 return (mm->free_area_cache = addr);
72449
72450 @@ -1517,8 +1727,8 @@ try_again:
72451 mm->cached_hole_size = vma->vm_start - addr;
72452
72453 /* try just below the current vma->vm_start */
72454 - addr = vma->vm_start-len;
72455 - } while (len < vma->vm_start);
72456 + addr = skip_heap_stack_gap(vma, len);
72457 + } while (!IS_ERR_VALUE(addr));
72458
72459 fail:
72460 /*
72461 @@ -1541,13 +1751,21 @@ fail:
72462 * can happen with large stack limits and large mmap()
72463 * allocations.
72464 */
72465 + mm->mmap_base = TASK_UNMAPPED_BASE;
72466 +
72467 +#ifdef CONFIG_PAX_RANDMMAP
72468 + if (mm->pax_flags & MF_PAX_RANDMMAP)
72469 + mm->mmap_base += mm->delta_mmap;
72470 +#endif
72471 +
72472 + mm->free_area_cache = mm->mmap_base;
72473 mm->cached_hole_size = ~0UL;
72474 - mm->free_area_cache = TASK_UNMAPPED_BASE;
72475 addr = arch_get_unmapped_area(filp, addr0, len, pgoff, flags);
72476 /*
72477 * Restore the topdown base:
72478 */
72479 - mm->free_area_cache = mm->mmap_base;
72480 + mm->mmap_base = base;
72481 + mm->free_area_cache = base;
72482 mm->cached_hole_size = ~0UL;
72483
72484 return addr;
72485 @@ -1556,6 +1774,12 @@ fail:
72486
72487 void arch_unmap_area_topdown(struct mm_struct *mm, unsigned long addr)
72488 {
72489 +
72490 +#ifdef CONFIG_PAX_SEGMEXEC
72491 + if ((mm->pax_flags & MF_PAX_SEGMEXEC) && SEGMEXEC_TASK_SIZE <= addr)
72492 + return;
72493 +#endif
72494 +
72495 /*
72496 * Is this a new hole at the highest possible address?
72497 */
72498 @@ -1563,8 +1787,10 @@ void arch_unmap_area_topdown(struct mm_struct *mm, unsigned long addr)
72499 mm->free_area_cache = addr;
72500
72501 /* dont allow allocations above current base */
72502 - if (mm->free_area_cache > mm->mmap_base)
72503 + if (mm->free_area_cache > mm->mmap_base) {
72504 mm->free_area_cache = mm->mmap_base;
72505 + mm->cached_hole_size = ~0UL;
72506 + }
72507 }
72508
72509 unsigned long
72510 @@ -1663,6 +1889,28 @@ find_vma_prev(struct mm_struct *mm, unsigned long addr,
72511 return vma;
72512 }
72513
72514 +#ifdef CONFIG_PAX_SEGMEXEC
72515 +struct vm_area_struct *pax_find_mirror_vma(struct vm_area_struct *vma)
72516 +{
72517 + struct vm_area_struct *vma_m;
72518 +
72519 + BUG_ON(!vma || vma->vm_start >= vma->vm_end);
72520 + if (!(vma->vm_mm->pax_flags & MF_PAX_SEGMEXEC) || !(vma->vm_flags & VM_EXEC)) {
72521 + BUG_ON(vma->vm_mirror);
72522 + return NULL;
72523 + }
72524 + BUG_ON(vma->vm_start < SEGMEXEC_TASK_SIZE && SEGMEXEC_TASK_SIZE < vma->vm_end);
72525 + vma_m = vma->vm_mirror;
72526 + BUG_ON(!vma_m || vma_m->vm_mirror != vma);
72527 + BUG_ON(vma->vm_file != vma_m->vm_file);
72528 + BUG_ON(vma->vm_end - vma->vm_start != vma_m->vm_end - vma_m->vm_start);
72529 + BUG_ON(vma->vm_pgoff != vma_m->vm_pgoff);
72530 + BUG_ON(vma->anon_vma != vma_m->anon_vma && vma->anon_vma->root != vma_m->anon_vma->root);
72531 + BUG_ON((vma->vm_flags ^ vma_m->vm_flags) & ~(VM_WRITE | VM_MAYWRITE | VM_ACCOUNT | VM_LOCKED | VM_RESERVED));
72532 + return vma_m;
72533 +}
72534 +#endif
72535 +
72536 /*
72537 * Verify that the stack growth is acceptable and
72538 * update accounting. This is shared with both the
72539 @@ -1679,6 +1927,7 @@ static int acct_stack_growth(struct vm_area_struct *vma, unsigned long size, uns
72540 return -ENOMEM;
72541
72542 /* Stack limit test */
72543 + gr_learn_resource(current, RLIMIT_STACK, size, 1);
72544 if (size > ACCESS_ONCE(rlim[RLIMIT_STACK].rlim_cur))
72545 return -ENOMEM;
72546
72547 @@ -1689,6 +1938,7 @@ static int acct_stack_growth(struct vm_area_struct *vma, unsigned long size, uns
72548 locked = mm->locked_vm + grow;
72549 limit = ACCESS_ONCE(rlim[RLIMIT_MEMLOCK].rlim_cur);
72550 limit >>= PAGE_SHIFT;
72551 + gr_learn_resource(current, RLIMIT_MEMLOCK, locked << PAGE_SHIFT, 1);
72552 if (locked > limit && !capable(CAP_IPC_LOCK))
72553 return -ENOMEM;
72554 }
72555 @@ -1719,37 +1969,48 @@ static int acct_stack_growth(struct vm_area_struct *vma, unsigned long size, uns
72556 * PA-RISC uses this for its stack; IA64 for its Register Backing Store.
72557 * vma is the last one with address > vma->vm_end. Have to extend vma.
72558 */
72559 +#ifndef CONFIG_IA64
72560 +static
72561 +#endif
72562 int expand_upwards(struct vm_area_struct *vma, unsigned long address)
72563 {
72564 int error;
72565 + bool locknext;
72566
72567 if (!(vma->vm_flags & VM_GROWSUP))
72568 return -EFAULT;
72569
72570 + /* Also guard against wrapping around to address 0. */
72571 + if (address < PAGE_ALIGN(address+1))
72572 + address = PAGE_ALIGN(address+1);
72573 + else
72574 + return -ENOMEM;
72575 +
72576 /*
72577 * We must make sure the anon_vma is allocated
72578 * so that the anon_vma locking is not a noop.
72579 */
72580 if (unlikely(anon_vma_prepare(vma)))
72581 return -ENOMEM;
72582 + locknext = vma->vm_next && (vma->vm_next->vm_flags & VM_GROWSDOWN);
72583 + if (locknext && anon_vma_prepare(vma->vm_next))
72584 + return -ENOMEM;
72585 vma_lock_anon_vma(vma);
72586 + if (locknext)
72587 + vma_lock_anon_vma(vma->vm_next);
72588
72589 /*
72590 * vma->vm_start/vm_end cannot change under us because the caller
72591 * is required to hold the mmap_sem in read mode. We need the
72592 - * anon_vma lock to serialize against concurrent expand_stacks.
72593 - * Also guard against wrapping around to address 0.
72594 + * anon_vma locks to serialize against concurrent expand_stacks
72595 + * and expand_upwards.
72596 */
72597 - if (address < PAGE_ALIGN(address+4))
72598 - address = PAGE_ALIGN(address+4);
72599 - else {
72600 - vma_unlock_anon_vma(vma);
72601 - return -ENOMEM;
72602 - }
72603 error = 0;
72604
72605 /* Somebody else might have raced and expanded it already */
72606 - if (address > vma->vm_end) {
72607 + 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)
72608 + error = -ENOMEM;
72609 + else if (address > vma->vm_end && (!locknext || vma->vm_next->vm_start >= address)) {
72610 unsigned long size, grow;
72611
72612 size = address - vma->vm_start;
72613 @@ -1764,6 +2025,8 @@ int expand_upwards(struct vm_area_struct *vma, unsigned long address)
72614 }
72615 }
72616 }
72617 + if (locknext)
72618 + vma_unlock_anon_vma(vma->vm_next);
72619 vma_unlock_anon_vma(vma);
72620 khugepaged_enter_vma_merge(vma);
72621 return error;
72622 @@ -1777,6 +2040,8 @@ int expand_downwards(struct vm_area_struct *vma,
72623 unsigned long address)
72624 {
72625 int error;
72626 + bool lockprev = false;
72627 + struct vm_area_struct *prev;
72628
72629 /*
72630 * We must make sure the anon_vma is allocated
72631 @@ -1790,6 +2055,15 @@ int expand_downwards(struct vm_area_struct *vma,
72632 if (error)
72633 return error;
72634
72635 + prev = vma->vm_prev;
72636 +#if defined(CONFIG_STACK_GROWSUP) || defined(CONFIG_IA64)
72637 + lockprev = prev && (prev->vm_flags & VM_GROWSUP);
72638 +#endif
72639 + if (lockprev && anon_vma_prepare(prev))
72640 + return -ENOMEM;
72641 + if (lockprev)
72642 + vma_lock_anon_vma(prev);
72643 +
72644 vma_lock_anon_vma(vma);
72645
72646 /*
72647 @@ -1799,9 +2073,17 @@ int expand_downwards(struct vm_area_struct *vma,
72648 */
72649
72650 /* Somebody else might have raced and expanded it already */
72651 - if (address < vma->vm_start) {
72652 + if (prev && (prev->vm_flags & (VM_READ | VM_WRITE | VM_EXEC)) && address - prev->vm_end < sysctl_heap_stack_gap)
72653 + error = -ENOMEM;
72654 + else if (address < vma->vm_start && (!lockprev || prev->vm_end <= address)) {
72655 unsigned long size, grow;
72656
72657 +#ifdef CONFIG_PAX_SEGMEXEC
72658 + struct vm_area_struct *vma_m;
72659 +
72660 + vma_m = pax_find_mirror_vma(vma);
72661 +#endif
72662 +
72663 size = vma->vm_end - address;
72664 grow = (vma->vm_start - address) >> PAGE_SHIFT;
72665
72666 @@ -1811,11 +2093,22 @@ int expand_downwards(struct vm_area_struct *vma,
72667 if (!error) {
72668 vma->vm_start = address;
72669 vma->vm_pgoff -= grow;
72670 + track_exec_limit(vma->vm_mm, vma->vm_start, vma->vm_end, vma->vm_flags);
72671 +
72672 +#ifdef CONFIG_PAX_SEGMEXEC
72673 + if (vma_m) {
72674 + vma_m->vm_start -= grow << PAGE_SHIFT;
72675 + vma_m->vm_pgoff -= grow;
72676 + }
72677 +#endif
72678 +
72679 perf_event_mmap(vma);
72680 }
72681 }
72682 }
72683 vma_unlock_anon_vma(vma);
72684 + if (lockprev)
72685 + vma_unlock_anon_vma(prev);
72686 khugepaged_enter_vma_merge(vma);
72687 return error;
72688 }
72689 @@ -1887,6 +2180,13 @@ static void remove_vma_list(struct mm_struct *mm, struct vm_area_struct *vma)
72690 do {
72691 long nrpages = vma_pages(vma);
72692
72693 +#ifdef CONFIG_PAX_SEGMEXEC
72694 + if ((mm->pax_flags & MF_PAX_SEGMEXEC) && (vma->vm_start >= SEGMEXEC_TASK_SIZE)) {
72695 + vma = remove_vma(vma);
72696 + continue;
72697 + }
72698 +#endif
72699 +
72700 if (vma->vm_flags & VM_ACCOUNT)
72701 nr_accounted += nrpages;
72702 mm->total_vm -= nrpages;
72703 @@ -1933,6 +2233,16 @@ detach_vmas_to_be_unmapped(struct mm_struct *mm, struct vm_area_struct *vma,
72704 insertion_point = (prev ? &prev->vm_next : &mm->mmap);
72705 vma->vm_prev = NULL;
72706 do {
72707 +
72708 +#ifdef CONFIG_PAX_SEGMEXEC
72709 + if (vma->vm_mirror) {
72710 + BUG_ON(!vma->vm_mirror->vm_mirror || vma->vm_mirror->vm_mirror != vma);
72711 + vma->vm_mirror->vm_mirror = NULL;
72712 + vma->vm_mirror->vm_flags &= ~VM_EXEC;
72713 + vma->vm_mirror = NULL;
72714 + }
72715 +#endif
72716 +
72717 rb_erase(&vma->vm_rb, &mm->mm_rb);
72718 mm->map_count--;
72719 tail_vma = vma;
72720 @@ -1961,14 +2271,33 @@ static int __split_vma(struct mm_struct * mm, struct vm_area_struct * vma,
72721 struct vm_area_struct *new;
72722 int err = -ENOMEM;
72723
72724 +#ifdef CONFIG_PAX_SEGMEXEC
72725 + struct vm_area_struct *vma_m, *new_m = NULL;
72726 + unsigned long addr_m = addr + SEGMEXEC_TASK_SIZE;
72727 +#endif
72728 +
72729 if (is_vm_hugetlb_page(vma) && (addr &
72730 ~(huge_page_mask(hstate_vma(vma)))))
72731 return -EINVAL;
72732
72733 +#ifdef CONFIG_PAX_SEGMEXEC
72734 + vma_m = pax_find_mirror_vma(vma);
72735 +#endif
72736 +
72737 new = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL);
72738 if (!new)
72739 goto out_err;
72740
72741 +#ifdef CONFIG_PAX_SEGMEXEC
72742 + if (vma_m) {
72743 + new_m = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL);
72744 + if (!new_m) {
72745 + kmem_cache_free(vm_area_cachep, new);
72746 + goto out_err;
72747 + }
72748 + }
72749 +#endif
72750 +
72751 /* most fields are the same, copy all, and then fixup */
72752 *new = *vma;
72753
72754 @@ -1981,6 +2310,22 @@ static int __split_vma(struct mm_struct * mm, struct vm_area_struct * vma,
72755 new->vm_pgoff += ((addr - vma->vm_start) >> PAGE_SHIFT);
72756 }
72757
72758 +#ifdef CONFIG_PAX_SEGMEXEC
72759 + if (vma_m) {
72760 + *new_m = *vma_m;
72761 + INIT_LIST_HEAD(&new_m->anon_vma_chain);
72762 + new_m->vm_mirror = new;
72763 + new->vm_mirror = new_m;
72764 +
72765 + if (new_below)
72766 + new_m->vm_end = addr_m;
72767 + else {
72768 + new_m->vm_start = addr_m;
72769 + new_m->vm_pgoff += ((addr_m - vma_m->vm_start) >> PAGE_SHIFT);
72770 + }
72771 + }
72772 +#endif
72773 +
72774 pol = mpol_dup(vma_policy(vma));
72775 if (IS_ERR(pol)) {
72776 err = PTR_ERR(pol);
72777 @@ -2006,6 +2351,42 @@ static int __split_vma(struct mm_struct * mm, struct vm_area_struct * vma,
72778 else
72779 err = vma_adjust(vma, vma->vm_start, addr, vma->vm_pgoff, new);
72780
72781 +#ifdef CONFIG_PAX_SEGMEXEC
72782 + if (!err && vma_m) {
72783 + if (anon_vma_clone(new_m, vma_m))
72784 + goto out_free_mpol;
72785 +
72786 + mpol_get(pol);
72787 + vma_set_policy(new_m, pol);
72788 +
72789 + if (new_m->vm_file) {
72790 + get_file(new_m->vm_file);
72791 + if (vma_m->vm_flags & VM_EXECUTABLE)
72792 + added_exe_file_vma(mm);
72793 + }
72794 +
72795 + if (new_m->vm_ops && new_m->vm_ops->open)
72796 + new_m->vm_ops->open(new_m);
72797 +
72798 + if (new_below)
72799 + err = vma_adjust(vma_m, addr_m, vma_m->vm_end, vma_m->vm_pgoff +
72800 + ((addr_m - new_m->vm_start) >> PAGE_SHIFT), new_m);
72801 + else
72802 + err = vma_adjust(vma_m, vma_m->vm_start, addr_m, vma_m->vm_pgoff, new_m);
72803 +
72804 + if (err) {
72805 + if (new_m->vm_ops && new_m->vm_ops->close)
72806 + new_m->vm_ops->close(new_m);
72807 + if (new_m->vm_file) {
72808 + if (vma_m->vm_flags & VM_EXECUTABLE)
72809 + removed_exe_file_vma(mm);
72810 + fput(new_m->vm_file);
72811 + }
72812 + mpol_put(pol);
72813 + }
72814 + }
72815 +#endif
72816 +
72817 /* Success. */
72818 if (!err)
72819 return 0;
72820 @@ -2018,10 +2399,18 @@ static int __split_vma(struct mm_struct * mm, struct vm_area_struct * vma,
72821 removed_exe_file_vma(mm);
72822 fput(new->vm_file);
72823 }
72824 - unlink_anon_vmas(new);
72825 out_free_mpol:
72826 mpol_put(pol);
72827 out_free_vma:
72828 +
72829 +#ifdef CONFIG_PAX_SEGMEXEC
72830 + if (new_m) {
72831 + unlink_anon_vmas(new_m);
72832 + kmem_cache_free(vm_area_cachep, new_m);
72833 + }
72834 +#endif
72835 +
72836 + unlink_anon_vmas(new);
72837 kmem_cache_free(vm_area_cachep, new);
72838 out_err:
72839 return err;
72840 @@ -2034,6 +2423,15 @@ static int __split_vma(struct mm_struct * mm, struct vm_area_struct * vma,
72841 int split_vma(struct mm_struct *mm, struct vm_area_struct *vma,
72842 unsigned long addr, int new_below)
72843 {
72844 +
72845 +#ifdef CONFIG_PAX_SEGMEXEC
72846 + if (mm->pax_flags & MF_PAX_SEGMEXEC) {
72847 + BUG_ON(vma->vm_end > SEGMEXEC_TASK_SIZE);
72848 + if (mm->map_count >= sysctl_max_map_count-1)
72849 + return -ENOMEM;
72850 + } else
72851 +#endif
72852 +
72853 if (mm->map_count >= sysctl_max_map_count)
72854 return -ENOMEM;
72855
72856 @@ -2045,11 +2443,30 @@ int split_vma(struct mm_struct *mm, struct vm_area_struct *vma,
72857 * work. This now handles partial unmappings.
72858 * Jeremy Fitzhardinge <jeremy@goop.org>
72859 */
72860 +#ifdef CONFIG_PAX_SEGMEXEC
72861 int do_munmap(struct mm_struct *mm, unsigned long start, size_t len)
72862 {
72863 + int ret = __do_munmap(mm, start, len);
72864 + if (ret || !(mm->pax_flags & MF_PAX_SEGMEXEC))
72865 + return ret;
72866 +
72867 + return __do_munmap(mm, start + SEGMEXEC_TASK_SIZE, len);
72868 +}
72869 +
72870 +int __do_munmap(struct mm_struct *mm, unsigned long start, size_t len)
72871 +#else
72872 +int do_munmap(struct mm_struct *mm, unsigned long start, size_t len)
72873 +#endif
72874 +{
72875 unsigned long end;
72876 struct vm_area_struct *vma, *prev, *last;
72877
72878 + /*
72879 + * mm->mmap_sem is required to protect against another thread
72880 + * changing the mappings in case we sleep.
72881 + */
72882 + verify_mm_writelocked(mm);
72883 +
72884 if ((start & ~PAGE_MASK) || start > TASK_SIZE || len > TASK_SIZE-start)
72885 return -EINVAL;
72886
72887 @@ -2124,6 +2541,8 @@ int do_munmap(struct mm_struct *mm, unsigned long start, size_t len)
72888 /* Fix up all other VM information */
72889 remove_vma_list(mm, vma);
72890
72891 + track_exec_limit(mm, start, end, 0UL);
72892 +
72893 return 0;
72894 }
72895
72896 @@ -2132,6 +2551,13 @@ int vm_munmap(unsigned long start, size_t len)
72897 int ret;
72898 struct mm_struct *mm = current->mm;
72899
72900 +
72901 +#ifdef CONFIG_PAX_SEGMEXEC
72902 + if ((mm->pax_flags & MF_PAX_SEGMEXEC) &&
72903 + (len > SEGMEXEC_TASK_SIZE || start > SEGMEXEC_TASK_SIZE-len))
72904 + return -EINVAL;
72905 +#endif
72906 +
72907 down_write(&mm->mmap_sem);
72908 ret = do_munmap(mm, start, len);
72909 up_write(&mm->mmap_sem);
72910 @@ -2145,16 +2571,6 @@ SYSCALL_DEFINE2(munmap, unsigned long, addr, size_t, len)
72911 return vm_munmap(addr, len);
72912 }
72913
72914 -static inline void verify_mm_writelocked(struct mm_struct *mm)
72915 -{
72916 -#ifdef CONFIG_DEBUG_VM
72917 - if (unlikely(down_read_trylock(&mm->mmap_sem))) {
72918 - WARN_ON(1);
72919 - up_read(&mm->mmap_sem);
72920 - }
72921 -#endif
72922 -}
72923 -
72924 /*
72925 * this is really a simplified "do_mmap". it only handles
72926 * anonymous maps. eventually we may be able to do some
72927 @@ -2168,6 +2584,7 @@ static unsigned long do_brk(unsigned long addr, unsigned long len)
72928 struct rb_node ** rb_link, * rb_parent;
72929 pgoff_t pgoff = addr >> PAGE_SHIFT;
72930 int error;
72931 + unsigned long charged;
72932
72933 len = PAGE_ALIGN(len);
72934 if (!len)
72935 @@ -2175,16 +2592,30 @@ static unsigned long do_brk(unsigned long addr, unsigned long len)
72936
72937 flags = VM_DATA_DEFAULT_FLAGS | VM_ACCOUNT | mm->def_flags;
72938
72939 +#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
72940 + if (mm->pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) {
72941 + flags &= ~VM_EXEC;
72942 +
72943 +#ifdef CONFIG_PAX_MPROTECT
72944 + if (mm->pax_flags & MF_PAX_MPROTECT)
72945 + flags &= ~VM_MAYEXEC;
72946 +#endif
72947 +
72948 + }
72949 +#endif
72950 +
72951 error = get_unmapped_area(NULL, addr, len, 0, MAP_FIXED);
72952 if (error & ~PAGE_MASK)
72953 return error;
72954
72955 + charged = len >> PAGE_SHIFT;
72956 +
72957 /*
72958 * mlock MCL_FUTURE?
72959 */
72960 if (mm->def_flags & VM_LOCKED) {
72961 unsigned long locked, lock_limit;
72962 - locked = len >> PAGE_SHIFT;
72963 + locked = charged;
72964 locked += mm->locked_vm;
72965 lock_limit = rlimit(RLIMIT_MEMLOCK);
72966 lock_limit >>= PAGE_SHIFT;
72967 @@ -2201,22 +2632,22 @@ static unsigned long do_brk(unsigned long addr, unsigned long len)
72968 /*
72969 * Clear old maps. this also does some error checking for us
72970 */
72971 - munmap_back:
72972 vma = find_vma_prepare(mm, addr, &prev, &rb_link, &rb_parent);
72973 if (vma && vma->vm_start < addr + len) {
72974 if (do_munmap(mm, addr, len))
72975 return -ENOMEM;
72976 - goto munmap_back;
72977 - }
72978 + vma = find_vma_prepare(mm, addr, &prev, &rb_link, &rb_parent);
72979 + BUG_ON(vma && vma->vm_start < addr + len);
72980 + }
72981
72982 /* Check against address space limits *after* clearing old maps... */
72983 - if (!may_expand_vm(mm, len >> PAGE_SHIFT))
72984 + if (!may_expand_vm(mm, charged))
72985 return -ENOMEM;
72986
72987 if (mm->map_count > sysctl_max_map_count)
72988 return -ENOMEM;
72989
72990 - if (security_vm_enough_memory_mm(mm, len >> PAGE_SHIFT))
72991 + if (security_vm_enough_memory_mm(mm, charged))
72992 return -ENOMEM;
72993
72994 /* Can we just expand an old private anonymous mapping? */
72995 @@ -2230,7 +2661,7 @@ static unsigned long do_brk(unsigned long addr, unsigned long len)
72996 */
72997 vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
72998 if (!vma) {
72999 - vm_unacct_memory(len >> PAGE_SHIFT);
73000 + vm_unacct_memory(charged);
73001 return -ENOMEM;
73002 }
73003
73004 @@ -2244,11 +2675,12 @@ static unsigned long do_brk(unsigned long addr, unsigned long len)
73005 vma_link(mm, vma, prev, rb_link, rb_parent);
73006 out:
73007 perf_event_mmap(vma);
73008 - mm->total_vm += len >> PAGE_SHIFT;
73009 + mm->total_vm += charged;
73010 if (flags & VM_LOCKED) {
73011 if (!mlock_vma_pages_range(vma, addr, addr + len))
73012 - mm->locked_vm += (len >> PAGE_SHIFT);
73013 + mm->locked_vm += charged;
73014 }
73015 + track_exec_limit(mm, addr, addr + len, flags);
73016 return addr;
73017 }
73018
73019 @@ -2306,6 +2738,7 @@ void exit_mmap(struct mm_struct *mm)
73020 while (vma) {
73021 if (vma->vm_flags & VM_ACCOUNT)
73022 nr_accounted += vma_pages(vma);
73023 + vma->vm_mirror = NULL;
73024 vma = remove_vma(vma);
73025 }
73026 vm_unacct_memory(nr_accounted);
73027 @@ -2322,6 +2755,13 @@ int insert_vm_struct(struct mm_struct * mm, struct vm_area_struct * vma)
73028 struct vm_area_struct * __vma, * prev;
73029 struct rb_node ** rb_link, * rb_parent;
73030
73031 +#ifdef CONFIG_PAX_SEGMEXEC
73032 + struct vm_area_struct *vma_m = NULL;
73033 +#endif
73034 +
73035 + if (security_mmap_addr(vma->vm_start))
73036 + return -EPERM;
73037 +
73038 /*
73039 * The vm_pgoff of a purely anonymous vma should be irrelevant
73040 * until its first write fault, when page's anon_vma and index
73041 @@ -2348,7 +2788,21 @@ int insert_vm_struct(struct mm_struct * mm, struct vm_area_struct * vma)
73042 if (vma->vm_file && uprobe_mmap(vma))
73043 return -EINVAL;
73044
73045 +#ifdef CONFIG_PAX_SEGMEXEC
73046 + if ((mm->pax_flags & MF_PAX_SEGMEXEC) && (vma->vm_flags & VM_EXEC)) {
73047 + vma_m = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
73048 + if (!vma_m)
73049 + return -ENOMEM;
73050 + }
73051 +#endif
73052 +
73053 vma_link(mm, vma, prev, rb_link, rb_parent);
73054 +
73055 +#ifdef CONFIG_PAX_SEGMEXEC
73056 + if (vma_m)
73057 + BUG_ON(pax_mirror_vma(vma_m, vma));
73058 +#endif
73059 +
73060 return 0;
73061 }
73062
73063 @@ -2367,6 +2821,8 @@ struct vm_area_struct *copy_vma(struct vm_area_struct **vmap,
73064 struct mempolicy *pol;
73065 bool faulted_in_anon_vma = true;
73066
73067 + BUG_ON(vma->vm_mirror);
73068 +
73069 /*
73070 * If anonymous vma has not yet been faulted, update new pgoff
73071 * to match new location, to increase its chance of merging.
73072 @@ -2438,6 +2894,39 @@ struct vm_area_struct *copy_vma(struct vm_area_struct **vmap,
73073 return NULL;
73074 }
73075
73076 +#ifdef CONFIG_PAX_SEGMEXEC
73077 +long pax_mirror_vma(struct vm_area_struct *vma_m, struct vm_area_struct *vma)
73078 +{
73079 + struct vm_area_struct *prev_m;
73080 + struct rb_node **rb_link_m, *rb_parent_m;
73081 + struct mempolicy *pol_m;
73082 +
73083 + BUG_ON(!(vma->vm_mm->pax_flags & MF_PAX_SEGMEXEC) || !(vma->vm_flags & VM_EXEC));
73084 + BUG_ON(vma->vm_mirror || vma_m->vm_mirror);
73085 + BUG_ON(!mpol_equal(vma_policy(vma), vma_policy(vma_m)));
73086 + *vma_m = *vma;
73087 + INIT_LIST_HEAD(&vma_m->anon_vma_chain);
73088 + if (anon_vma_clone(vma_m, vma))
73089 + return -ENOMEM;
73090 + pol_m = vma_policy(vma_m);
73091 + mpol_get(pol_m);
73092 + vma_set_policy(vma_m, pol_m);
73093 + vma_m->vm_start += SEGMEXEC_TASK_SIZE;
73094 + vma_m->vm_end += SEGMEXEC_TASK_SIZE;
73095 + vma_m->vm_flags &= ~(VM_WRITE | VM_MAYWRITE | VM_ACCOUNT | VM_LOCKED);
73096 + vma_m->vm_page_prot = vm_get_page_prot(vma_m->vm_flags);
73097 + if (vma_m->vm_file)
73098 + get_file(vma_m->vm_file);
73099 + if (vma_m->vm_ops && vma_m->vm_ops->open)
73100 + vma_m->vm_ops->open(vma_m);
73101 + find_vma_prepare(vma->vm_mm, vma_m->vm_start, &prev_m, &rb_link_m, &rb_parent_m);
73102 + vma_link(vma->vm_mm, vma_m, prev_m, rb_link_m, rb_parent_m);
73103 + vma_m->vm_mirror = vma;
73104 + vma->vm_mirror = vma_m;
73105 + return 0;
73106 +}
73107 +#endif
73108 +
73109 /*
73110 * Return true if the calling process may expand its vm space by the passed
73111 * number of pages
73112 @@ -2449,6 +2938,12 @@ int may_expand_vm(struct mm_struct *mm, unsigned long npages)
73113
73114 lim = rlimit(RLIMIT_AS) >> PAGE_SHIFT;
73115
73116 +#ifdef CONFIG_PAX_RANDMMAP
73117 + if (mm->pax_flags & MF_PAX_RANDMMAP)
73118 + cur -= mm->brk_gap;
73119 +#endif
73120 +
73121 + gr_learn_resource(current, RLIMIT_AS, (cur + npages) << PAGE_SHIFT, 1);
73122 if (cur + npages > lim)
73123 return 0;
73124 return 1;
73125 @@ -2519,6 +3014,22 @@ int install_special_mapping(struct mm_struct *mm,
73126 vma->vm_start = addr;
73127 vma->vm_end = addr + len;
73128
73129 +#ifdef CONFIG_PAX_MPROTECT
73130 + if (mm->pax_flags & MF_PAX_MPROTECT) {
73131 +#ifndef CONFIG_PAX_MPROTECT_COMPAT
73132 + if ((vm_flags & (VM_WRITE | VM_EXEC)) == (VM_WRITE | VM_EXEC))
73133 + return -EPERM;
73134 + if (!(vm_flags & VM_EXEC))
73135 + vm_flags &= ~VM_MAYEXEC;
73136 +#else
73137 + if ((vm_flags & (VM_WRITE | VM_EXEC)) != VM_EXEC)
73138 + vm_flags &= ~(VM_EXEC | VM_MAYEXEC);
73139 +#endif
73140 + else
73141 + vm_flags &= ~VM_MAYWRITE;
73142 + }
73143 +#endif
73144 +
73145 vma->vm_flags = vm_flags | mm->def_flags | VM_DONTEXPAND;
73146 vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
73147
73148 diff --git a/mm/mprotect.c b/mm/mprotect.c
73149 index a409926..8b32e6d 100644
73150 --- a/mm/mprotect.c
73151 +++ b/mm/mprotect.c
73152 @@ -23,10 +23,17 @@
73153 #include <linux/mmu_notifier.h>
73154 #include <linux/migrate.h>
73155 #include <linux/perf_event.h>
73156 +
73157 +#ifdef CONFIG_PAX_MPROTECT
73158 +#include <linux/elf.h>
73159 +#include <linux/binfmts.h>
73160 +#endif
73161 +
73162 #include <asm/uaccess.h>
73163 #include <asm/pgtable.h>
73164 #include <asm/cacheflush.h>
73165 #include <asm/tlbflush.h>
73166 +#include <asm/mmu_context.h>
73167
73168 #ifndef pgprot_modify
73169 static inline pgprot_t pgprot_modify(pgprot_t oldprot, pgprot_t newprot)
73170 @@ -141,6 +148,48 @@ static void change_protection(struct vm_area_struct *vma,
73171 flush_tlb_range(vma, start, end);
73172 }
73173
73174 +#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT
73175 +/* called while holding the mmap semaphor for writing except stack expansion */
73176 +void track_exec_limit(struct mm_struct *mm, unsigned long start, unsigned long end, unsigned long prot)
73177 +{
73178 + unsigned long oldlimit, newlimit = 0UL;
73179 +
73180 + if (!(mm->pax_flags & MF_PAX_PAGEEXEC) || (__supported_pte_mask & _PAGE_NX))
73181 + return;
73182 +
73183 + spin_lock(&mm->page_table_lock);
73184 + oldlimit = mm->context.user_cs_limit;
73185 + if ((prot & VM_EXEC) && oldlimit < end)
73186 + /* USER_CS limit moved up */
73187 + newlimit = end;
73188 + else if (!(prot & VM_EXEC) && start < oldlimit && oldlimit <= end)
73189 + /* USER_CS limit moved down */
73190 + newlimit = start;
73191 +
73192 + if (newlimit) {
73193 + mm->context.user_cs_limit = newlimit;
73194 +
73195 +#ifdef CONFIG_SMP
73196 + wmb();
73197 + cpus_clear(mm->context.cpu_user_cs_mask);
73198 + cpu_set(smp_processor_id(), mm->context.cpu_user_cs_mask);
73199 +#endif
73200 +
73201 + set_user_cs(mm->context.user_cs_base, mm->context.user_cs_limit, smp_processor_id());
73202 + }
73203 + spin_unlock(&mm->page_table_lock);
73204 + if (newlimit == end) {
73205 + struct vm_area_struct *vma = find_vma(mm, oldlimit);
73206 +
73207 + for (; vma && vma->vm_start < end; vma = vma->vm_next)
73208 + if (is_vm_hugetlb_page(vma))
73209 + hugetlb_change_protection(vma, vma->vm_start, vma->vm_end, vma->vm_page_prot);
73210 + else
73211 + change_protection(vma, vma->vm_start, vma->vm_end, vma->vm_page_prot, vma_wants_writenotify(vma));
73212 + }
73213 +}
73214 +#endif
73215 +
73216 int
73217 mprotect_fixup(struct vm_area_struct *vma, struct vm_area_struct **pprev,
73218 unsigned long start, unsigned long end, unsigned long newflags)
73219 @@ -153,11 +202,29 @@ mprotect_fixup(struct vm_area_struct *vma, struct vm_area_struct **pprev,
73220 int error;
73221 int dirty_accountable = 0;
73222
73223 +#ifdef CONFIG_PAX_SEGMEXEC
73224 + struct vm_area_struct *vma_m = NULL;
73225 + unsigned long start_m, end_m;
73226 +
73227 + start_m = start + SEGMEXEC_TASK_SIZE;
73228 + end_m = end + SEGMEXEC_TASK_SIZE;
73229 +#endif
73230 +
73231 if (newflags == oldflags) {
73232 *pprev = vma;
73233 return 0;
73234 }
73235
73236 + if (newflags & (VM_READ | VM_WRITE | VM_EXEC)) {
73237 + struct vm_area_struct *prev = vma->vm_prev, *next = vma->vm_next;
73238 +
73239 + if (next && (next->vm_flags & VM_GROWSDOWN) && sysctl_heap_stack_gap > next->vm_start - end)
73240 + return -ENOMEM;
73241 +
73242 + if (prev && (prev->vm_flags & VM_GROWSUP) && sysctl_heap_stack_gap > start - prev->vm_end)
73243 + return -ENOMEM;
73244 + }
73245 +
73246 /*
73247 * If we make a private mapping writable we increase our commit;
73248 * but (without finer accounting) cannot reduce our commit if we
73249 @@ -174,6 +241,42 @@ mprotect_fixup(struct vm_area_struct *vma, struct vm_area_struct **pprev,
73250 }
73251 }
73252
73253 +#ifdef CONFIG_PAX_SEGMEXEC
73254 + if ((mm->pax_flags & MF_PAX_SEGMEXEC) && ((oldflags ^ newflags) & VM_EXEC)) {
73255 + if (start != vma->vm_start) {
73256 + error = split_vma(mm, vma, start, 1);
73257 + if (error)
73258 + goto fail;
73259 + BUG_ON(!*pprev || (*pprev)->vm_next == vma);
73260 + *pprev = (*pprev)->vm_next;
73261 + }
73262 +
73263 + if (end != vma->vm_end) {
73264 + error = split_vma(mm, vma, end, 0);
73265 + if (error)
73266 + goto fail;
73267 + }
73268 +
73269 + if (pax_find_mirror_vma(vma)) {
73270 + error = __do_munmap(mm, start_m, end_m - start_m);
73271 + if (error)
73272 + goto fail;
73273 + } else {
73274 + vma_m = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
73275 + if (!vma_m) {
73276 + error = -ENOMEM;
73277 + goto fail;
73278 + }
73279 + vma->vm_flags = newflags;
73280 + error = pax_mirror_vma(vma_m, vma);
73281 + if (error) {
73282 + vma->vm_flags = oldflags;
73283 + goto fail;
73284 + }
73285 + }
73286 + }
73287 +#endif
73288 +
73289 /*
73290 * First try to merge with previous and/or next vma.
73291 */
73292 @@ -204,9 +307,21 @@ success:
73293 * vm_flags and vm_page_prot are protected by the mmap_sem
73294 * held in write mode.
73295 */
73296 +
73297 +#ifdef CONFIG_PAX_SEGMEXEC
73298 + if ((mm->pax_flags & MF_PAX_SEGMEXEC) && (newflags & VM_EXEC) && ((vma->vm_flags ^ newflags) & VM_READ))
73299 + pax_find_mirror_vma(vma)->vm_flags ^= VM_READ;
73300 +#endif
73301 +
73302 vma->vm_flags = newflags;
73303 +
73304 +#ifdef CONFIG_PAX_MPROTECT
73305 + if (mm->binfmt && mm->binfmt->handle_mprotect)
73306 + mm->binfmt->handle_mprotect(vma, newflags);
73307 +#endif
73308 +
73309 vma->vm_page_prot = pgprot_modify(vma->vm_page_prot,
73310 - vm_get_page_prot(newflags));
73311 + vm_get_page_prot(vma->vm_flags));
73312
73313 if (vma_wants_writenotify(vma)) {
73314 vma->vm_page_prot = vm_get_page_prot(newflags & ~VM_SHARED);
73315 @@ -248,6 +363,17 @@ SYSCALL_DEFINE3(mprotect, unsigned long, start, size_t, len,
73316 end = start + len;
73317 if (end <= start)
73318 return -ENOMEM;
73319 +
73320 +#ifdef CONFIG_PAX_SEGMEXEC
73321 + if (current->mm->pax_flags & MF_PAX_SEGMEXEC) {
73322 + if (end > SEGMEXEC_TASK_SIZE)
73323 + return -EINVAL;
73324 + } else
73325 +#endif
73326 +
73327 + if (end > TASK_SIZE)
73328 + return -EINVAL;
73329 +
73330 if (!arch_validate_prot(prot))
73331 return -EINVAL;
73332
73333 @@ -255,7 +381,7 @@ SYSCALL_DEFINE3(mprotect, unsigned long, start, size_t, len,
73334 /*
73335 * Does the application expect PROT_READ to imply PROT_EXEC:
73336 */
73337 - if ((prot & PROT_READ) && (current->personality & READ_IMPLIES_EXEC))
73338 + if ((prot & (PROT_READ | PROT_WRITE)) && (current->personality & READ_IMPLIES_EXEC))
73339 prot |= PROT_EXEC;
73340
73341 vm_flags = calc_vm_prot_bits(prot);
73342 @@ -288,6 +414,11 @@ SYSCALL_DEFINE3(mprotect, unsigned long, start, size_t, len,
73343 if (start > vma->vm_start)
73344 prev = vma;
73345
73346 +#ifdef CONFIG_PAX_MPROTECT
73347 + if (current->mm->binfmt && current->mm->binfmt->handle_mprotect)
73348 + current->mm->binfmt->handle_mprotect(vma, vm_flags);
73349 +#endif
73350 +
73351 for (nstart = start ; ; ) {
73352 unsigned long newflags;
73353
73354 @@ -297,6 +428,14 @@ SYSCALL_DEFINE3(mprotect, unsigned long, start, size_t, len,
73355
73356 /* newflags >> 4 shift VM_MAY% in place of VM_% */
73357 if ((newflags & ~(newflags >> 4)) & (VM_READ | VM_WRITE | VM_EXEC)) {
73358 + if (prot & (PROT_WRITE | PROT_EXEC))
73359 + gr_log_rwxmprotect(vma->vm_file);
73360 +
73361 + error = -EACCES;
73362 + goto out;
73363 + }
73364 +
73365 + if (!gr_acl_handle_mprotect(vma->vm_file, prot)) {
73366 error = -EACCES;
73367 goto out;
73368 }
73369 @@ -311,6 +450,9 @@ SYSCALL_DEFINE3(mprotect, unsigned long, start, size_t, len,
73370 error = mprotect_fixup(vma, &prev, nstart, tmp, newflags);
73371 if (error)
73372 goto out;
73373 +
73374 + track_exec_limit(current->mm, nstart, tmp, vm_flags);
73375 +
73376 nstart = tmp;
73377
73378 if (nstart < prev->vm_end)
73379 diff --git a/mm/mremap.c b/mm/mremap.c
73380 index 21fed20..6822658 100644
73381 --- a/mm/mremap.c
73382 +++ b/mm/mremap.c
73383 @@ -106,6 +106,12 @@ static void move_ptes(struct vm_area_struct *vma, pmd_t *old_pmd,
73384 continue;
73385 pte = ptep_get_and_clear(mm, old_addr, old_pte);
73386 pte = move_pte(pte, new_vma->vm_page_prot, old_addr, new_addr);
73387 +
73388 +#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT
73389 + if (!(__supported_pte_mask & _PAGE_NX) && (new_vma->vm_flags & (VM_PAGEEXEC | VM_EXEC)) == VM_PAGEEXEC)
73390 + pte = pte_exprotect(pte);
73391 +#endif
73392 +
73393 set_pte_at(mm, new_addr, new_pte, pte);
73394 }
73395
73396 @@ -299,6 +305,11 @@ static struct vm_area_struct *vma_to_resize(unsigned long addr,
73397 if (is_vm_hugetlb_page(vma))
73398 goto Einval;
73399
73400 +#ifdef CONFIG_PAX_SEGMEXEC
73401 + if (pax_find_mirror_vma(vma))
73402 + goto Einval;
73403 +#endif
73404 +
73405 /* We can't remap across vm area boundaries */
73406 if (old_len > vma->vm_end - addr)
73407 goto Efault;
73408 @@ -355,20 +366,25 @@ static unsigned long mremap_to(unsigned long addr,
73409 unsigned long ret = -EINVAL;
73410 unsigned long charged = 0;
73411 unsigned long map_flags;
73412 + unsigned long pax_task_size = TASK_SIZE;
73413
73414 if (new_addr & ~PAGE_MASK)
73415 goto out;
73416
73417 - if (new_len > TASK_SIZE || new_addr > TASK_SIZE - new_len)
73418 +#ifdef CONFIG_PAX_SEGMEXEC
73419 + if (mm->pax_flags & MF_PAX_SEGMEXEC)
73420 + pax_task_size = SEGMEXEC_TASK_SIZE;
73421 +#endif
73422 +
73423 + pax_task_size -= PAGE_SIZE;
73424 +
73425 + if (new_len > TASK_SIZE || new_addr > pax_task_size - new_len)
73426 goto out;
73427
73428 /* Check if the location we're moving into overlaps the
73429 * old location at all, and fail if it does.
73430 */
73431 - if ((new_addr <= addr) && (new_addr+new_len) > addr)
73432 - goto out;
73433 -
73434 - if ((addr <= new_addr) && (addr+old_len) > new_addr)
73435 + if (addr + old_len > new_addr && new_addr + new_len > addr)
73436 goto out;
73437
73438 ret = do_munmap(mm, new_addr, new_len);
73439 @@ -436,6 +452,7 @@ SYSCALL_DEFINE5(mremap, unsigned long, addr, unsigned long, old_len,
73440 struct vm_area_struct *vma;
73441 unsigned long ret = -EINVAL;
73442 unsigned long charged = 0;
73443 + unsigned long pax_task_size = TASK_SIZE;
73444
73445 down_write(&current->mm->mmap_sem);
73446
73447 @@ -456,6 +473,17 @@ SYSCALL_DEFINE5(mremap, unsigned long, addr, unsigned long, old_len,
73448 if (!new_len)
73449 goto out;
73450
73451 +#ifdef CONFIG_PAX_SEGMEXEC
73452 + if (mm->pax_flags & MF_PAX_SEGMEXEC)
73453 + pax_task_size = SEGMEXEC_TASK_SIZE;
73454 +#endif
73455 +
73456 + pax_task_size -= PAGE_SIZE;
73457 +
73458 + if (new_len > pax_task_size || addr > pax_task_size-new_len ||
73459 + old_len > pax_task_size || addr > pax_task_size-old_len)
73460 + goto out;
73461 +
73462 if (flags & MREMAP_FIXED) {
73463 if (flags & MREMAP_MAYMOVE)
73464 ret = mremap_to(addr, old_len, new_addr, new_len);
73465 @@ -505,6 +533,7 @@ SYSCALL_DEFINE5(mremap, unsigned long, addr, unsigned long, old_len,
73466 addr + new_len);
73467 }
73468 ret = addr;
73469 + track_exec_limit(vma->vm_mm, vma->vm_start, addr + new_len, vma->vm_flags);
73470 goto out;
73471 }
73472 }
73473 @@ -528,7 +557,12 @@ SYSCALL_DEFINE5(mremap, unsigned long, addr, unsigned long, old_len,
73474 goto out;
73475 }
73476
73477 + map_flags = vma->vm_flags;
73478 ret = move_vma(vma, addr, old_len, new_len, new_addr);
73479 + if (!(ret & ~PAGE_MASK)) {
73480 + track_exec_limit(current->mm, addr, addr + old_len, 0UL);
73481 + track_exec_limit(current->mm, new_addr, new_addr + new_len, map_flags);
73482 + }
73483 }
73484 out:
73485 if (ret & ~PAGE_MASK)
73486 diff --git a/mm/nommu.c b/mm/nommu.c
73487 index d4b0c10..ed421b5 100644
73488 --- a/mm/nommu.c
73489 +++ b/mm/nommu.c
73490 @@ -62,7 +62,6 @@ int sysctl_overcommit_memory = OVERCOMMIT_GUESS; /* heuristic overcommit */
73491 int sysctl_overcommit_ratio = 50; /* default is 50% */
73492 int sysctl_max_map_count = DEFAULT_MAX_MAP_COUNT;
73493 int sysctl_nr_trim_pages = CONFIG_NOMMU_INITIAL_TRIM_EXCESS;
73494 -int heap_stack_gap = 0;
73495
73496 atomic_long_t mmap_pages_allocated;
73497
73498 @@ -827,15 +826,6 @@ struct vm_area_struct *find_vma(struct mm_struct *mm, unsigned long addr)
73499 EXPORT_SYMBOL(find_vma);
73500
73501 /*
73502 - * find a VMA
73503 - * - we don't extend stack VMAs under NOMMU conditions
73504 - */
73505 -struct vm_area_struct *find_extend_vma(struct mm_struct *mm, unsigned long addr)
73506 -{
73507 - return find_vma(mm, addr);
73508 -}
73509 -
73510 -/*
73511 * expand a stack to a given address
73512 * - not supported under NOMMU conditions
73513 */
73514 @@ -1551,6 +1541,7 @@ int split_vma(struct mm_struct *mm, struct vm_area_struct *vma,
73515
73516 /* most fields are the same, copy all, and then fixup */
73517 *new = *vma;
73518 + INIT_LIST_HEAD(&new->anon_vma_chain);
73519 *region = *vma->vm_region;
73520 new->vm_region = region;
73521
73522 diff --git a/mm/page_alloc.c b/mm/page_alloc.c
73523 index 201b508..1fb51ca 100644
73524 --- a/mm/page_alloc.c
73525 +++ b/mm/page_alloc.c
73526 @@ -336,7 +336,7 @@ out:
73527 * This usage means that zero-order pages may not be compound.
73528 */
73529
73530 -static void free_compound_page(struct page *page)
73531 +void free_compound_page(struct page *page)
73532 {
73533 __free_pages_ok(page, compound_order(page));
73534 }
73535 @@ -693,6 +693,10 @@ static bool free_pages_prepare(struct page *page, unsigned int order)
73536 int i;
73537 int bad = 0;
73538
73539 +#ifdef CONFIG_PAX_MEMORY_SANITIZE
73540 + unsigned long index = 1UL << order;
73541 +#endif
73542 +
73543 trace_mm_page_free(page, order);
73544 kmemcheck_free_shadow(page, order);
73545
73546 @@ -708,6 +712,12 @@ static bool free_pages_prepare(struct page *page, unsigned int order)
73547 debug_check_no_obj_freed(page_address(page),
73548 PAGE_SIZE << order);
73549 }
73550 +
73551 +#ifdef CONFIG_PAX_MEMORY_SANITIZE
73552 + for (; index; --index)
73553 + sanitize_highpage(page + index - 1);
73554 +#endif
73555 +
73556 arch_free_page(page, order);
73557 kernel_map_pages(page, 1 << order, 0);
73558
73559 @@ -849,8 +859,10 @@ static int prep_new_page(struct page *page, int order, gfp_t gfp_flags)
73560 arch_alloc_page(page, order);
73561 kernel_map_pages(page, 1 << order, 1);
73562
73563 +#ifndef CONFIG_PAX_MEMORY_SANITIZE
73564 if (gfp_flags & __GFP_ZERO)
73565 prep_zero_page(page, order, gfp_flags);
73566 +#endif
73567
73568 if (order && (gfp_flags & __GFP_COMP))
73569 prep_compound_page(page, order);
73570 @@ -3579,7 +3591,13 @@ static int pageblock_is_reserved(unsigned long start_pfn, unsigned long end_pfn)
73571 unsigned long pfn;
73572
73573 for (pfn = start_pfn; pfn < end_pfn; pfn++) {
73574 +#ifdef CONFIG_X86_32
73575 + /* boot failures in VMware 8 on 32bit vanilla since
73576 + this change */
73577 + if (!pfn_valid(pfn) || PageReserved(pfn_to_page(pfn)))
73578 +#else
73579 if (!pfn_valid_within(pfn) || PageReserved(pfn_to_page(pfn)))
73580 +#endif
73581 return 1;
73582 }
73583 return 0;
73584 diff --git a/mm/percpu.c b/mm/percpu.c
73585 index bb4be74..a43ea85 100644
73586 --- a/mm/percpu.c
73587 +++ b/mm/percpu.c
73588 @@ -122,7 +122,7 @@ static unsigned int pcpu_low_unit_cpu __read_mostly;
73589 static unsigned int pcpu_high_unit_cpu __read_mostly;
73590
73591 /* the address of the first chunk which starts with the kernel static area */
73592 -void *pcpu_base_addr __read_mostly;
73593 +void *pcpu_base_addr __read_only;
73594 EXPORT_SYMBOL_GPL(pcpu_base_addr);
73595
73596 static const int *pcpu_unit_map __read_mostly; /* cpu -> unit */
73597 diff --git a/mm/process_vm_access.c b/mm/process_vm_access.c
73598 index 926b466..b23df53 100644
73599 --- a/mm/process_vm_access.c
73600 +++ b/mm/process_vm_access.c
73601 @@ -13,6 +13,7 @@
73602 #include <linux/uio.h>
73603 #include <linux/sched.h>
73604 #include <linux/highmem.h>
73605 +#include <linux/security.h>
73606 #include <linux/ptrace.h>
73607 #include <linux/slab.h>
73608 #include <linux/syscalls.h>
73609 @@ -258,19 +259,19 @@ static ssize_t process_vm_rw_core(pid_t pid, const struct iovec *lvec,
73610 size_t iov_l_curr_offset = 0;
73611 ssize_t iov_len;
73612
73613 + return -ENOSYS; // PaX: until properly audited
73614 +
73615 /*
73616 * Work out how many pages of struct pages we're going to need
73617 * when eventually calling get_user_pages
73618 */
73619 for (i = 0; i < riovcnt; i++) {
73620 iov_len = rvec[i].iov_len;
73621 - if (iov_len > 0) {
73622 - nr_pages_iov = ((unsigned long)rvec[i].iov_base
73623 - + iov_len)
73624 - / PAGE_SIZE - (unsigned long)rvec[i].iov_base
73625 - / PAGE_SIZE + 1;
73626 - nr_pages = max(nr_pages, nr_pages_iov);
73627 - }
73628 + if (iov_len <= 0)
73629 + continue;
73630 + nr_pages_iov = ((unsigned long)rvec[i].iov_base + iov_len) / PAGE_SIZE -
73631 + (unsigned long)rvec[i].iov_base / PAGE_SIZE + 1;
73632 + nr_pages = max(nr_pages, nr_pages_iov);
73633 }
73634
73635 if (nr_pages == 0)
73636 @@ -298,6 +299,11 @@ static ssize_t process_vm_rw_core(pid_t pid, const struct iovec *lvec,
73637 goto free_proc_pages;
73638 }
73639
73640 + if (gr_handle_ptrace(task, vm_write ? PTRACE_POKETEXT : PTRACE_ATTACH)) {
73641 + rc = -EPERM;
73642 + goto put_task_struct;
73643 + }
73644 +
73645 mm = mm_access(task, PTRACE_MODE_ATTACH);
73646 if (!mm || IS_ERR(mm)) {
73647 rc = IS_ERR(mm) ? PTR_ERR(mm) : -ESRCH;
73648 diff --git a/mm/rmap.c b/mm/rmap.c
73649 index 0f3b7cd..c5652b6 100644
73650 --- a/mm/rmap.c
73651 +++ b/mm/rmap.c
73652 @@ -167,6 +167,10 @@ int anon_vma_prepare(struct vm_area_struct *vma)
73653 struct anon_vma *anon_vma = vma->anon_vma;
73654 struct anon_vma_chain *avc;
73655
73656 +#ifdef CONFIG_PAX_SEGMEXEC
73657 + struct anon_vma_chain *avc_m = NULL;
73658 +#endif
73659 +
73660 might_sleep();
73661 if (unlikely(!anon_vma)) {
73662 struct mm_struct *mm = vma->vm_mm;
73663 @@ -176,6 +180,12 @@ int anon_vma_prepare(struct vm_area_struct *vma)
73664 if (!avc)
73665 goto out_enomem;
73666
73667 +#ifdef CONFIG_PAX_SEGMEXEC
73668 + avc_m = anon_vma_chain_alloc(GFP_KERNEL);
73669 + if (!avc_m)
73670 + goto out_enomem_free_avc;
73671 +#endif
73672 +
73673 anon_vma = find_mergeable_anon_vma(vma);
73674 allocated = NULL;
73675 if (!anon_vma) {
73676 @@ -189,6 +199,18 @@ int anon_vma_prepare(struct vm_area_struct *vma)
73677 /* page_table_lock to protect against threads */
73678 spin_lock(&mm->page_table_lock);
73679 if (likely(!vma->anon_vma)) {
73680 +
73681 +#ifdef CONFIG_PAX_SEGMEXEC
73682 + struct vm_area_struct *vma_m = pax_find_mirror_vma(vma);
73683 +
73684 + if (vma_m) {
73685 + BUG_ON(vma_m->anon_vma);
73686 + vma_m->anon_vma = anon_vma;
73687 + anon_vma_chain_link(vma_m, avc_m, anon_vma);
73688 + avc_m = NULL;
73689 + }
73690 +#endif
73691 +
73692 vma->anon_vma = anon_vma;
73693 anon_vma_chain_link(vma, avc, anon_vma);
73694 allocated = NULL;
73695 @@ -199,12 +221,24 @@ int anon_vma_prepare(struct vm_area_struct *vma)
73696
73697 if (unlikely(allocated))
73698 put_anon_vma(allocated);
73699 +
73700 +#ifdef CONFIG_PAX_SEGMEXEC
73701 + if (unlikely(avc_m))
73702 + anon_vma_chain_free(avc_m);
73703 +#endif
73704 +
73705 if (unlikely(avc))
73706 anon_vma_chain_free(avc);
73707 }
73708 return 0;
73709
73710 out_enomem_free_avc:
73711 +
73712 +#ifdef CONFIG_PAX_SEGMEXEC
73713 + if (avc_m)
73714 + anon_vma_chain_free(avc_m);
73715 +#endif
73716 +
73717 anon_vma_chain_free(avc);
73718 out_enomem:
73719 return -ENOMEM;
73720 @@ -240,7 +274,7 @@ static inline void unlock_anon_vma_root(struct anon_vma *root)
73721 * Attach the anon_vmas from src to dst.
73722 * Returns 0 on success, -ENOMEM on failure.
73723 */
73724 -int anon_vma_clone(struct vm_area_struct *dst, struct vm_area_struct *src)
73725 +int anon_vma_clone(struct vm_area_struct *dst, const struct vm_area_struct *src)
73726 {
73727 struct anon_vma_chain *avc, *pavc;
73728 struct anon_vma *root = NULL;
73729 @@ -318,7 +352,7 @@ void anon_vma_moveto_tail(struct vm_area_struct *dst)
73730 * the corresponding VMA in the parent process is attached to.
73731 * Returns 0 on success, non-zero on failure.
73732 */
73733 -int anon_vma_fork(struct vm_area_struct *vma, struct vm_area_struct *pvma)
73734 +int anon_vma_fork(struct vm_area_struct *vma, const struct vm_area_struct *pvma)
73735 {
73736 struct anon_vma_chain *avc;
73737 struct anon_vma *anon_vma;
73738 diff --git a/mm/shmem.c b/mm/shmem.c
73739 index bd10636..5c16d49 100644
73740 --- a/mm/shmem.c
73741 +++ b/mm/shmem.c
73742 @@ -31,7 +31,7 @@
73743 #include <linux/export.h>
73744 #include <linux/swap.h>
73745
73746 -static struct vfsmount *shm_mnt;
73747 +struct vfsmount *shm_mnt;
73748
73749 #ifdef CONFIG_SHMEM
73750 /*
73751 @@ -75,7 +75,7 @@ static struct vfsmount *shm_mnt;
73752 #define BOGO_DIRENT_SIZE 20
73753
73754 /* Symlink up to this size is kmalloc'ed instead of using a swappable page */
73755 -#define SHORT_SYMLINK_LEN 128
73756 +#define SHORT_SYMLINK_LEN 64
73757
73758 struct shmem_xattr {
73759 struct list_head list; /* anchored by shmem_inode_info->xattr_list */
73760 @@ -2590,8 +2590,7 @@ int shmem_fill_super(struct super_block *sb, void *data, int silent)
73761 int err = -ENOMEM;
73762
73763 /* Round up to L1_CACHE_BYTES to resist false sharing */
73764 - sbinfo = kzalloc(max((int)sizeof(struct shmem_sb_info),
73765 - L1_CACHE_BYTES), GFP_KERNEL);
73766 + sbinfo = kzalloc(max(sizeof(struct shmem_sb_info), L1_CACHE_BYTES), GFP_KERNEL);
73767 if (!sbinfo)
73768 return -ENOMEM;
73769
73770 diff --git a/mm/slab.c b/mm/slab.c
73771 index e901a36..ca479fc 100644
73772 --- a/mm/slab.c
73773 +++ b/mm/slab.c
73774 @@ -153,7 +153,7 @@
73775
73776 /* Legal flag mask for kmem_cache_create(). */
73777 #if DEBUG
73778 -# define CREATE_MASK (SLAB_RED_ZONE | \
73779 +# define CREATE_MASK (SLAB_USERCOPY | SLAB_RED_ZONE | \
73780 SLAB_POISON | SLAB_HWCACHE_ALIGN | \
73781 SLAB_CACHE_DMA | \
73782 SLAB_STORE_USER | \
73783 @@ -161,7 +161,7 @@
73784 SLAB_DESTROY_BY_RCU | SLAB_MEM_SPREAD | \
73785 SLAB_DEBUG_OBJECTS | SLAB_NOLEAKTRACE | SLAB_NOTRACK)
73786 #else
73787 -# define CREATE_MASK (SLAB_HWCACHE_ALIGN | \
73788 +# define CREATE_MASK (SLAB_USERCOPY | SLAB_HWCACHE_ALIGN | \
73789 SLAB_CACHE_DMA | \
73790 SLAB_RECLAIM_ACCOUNT | SLAB_PANIC | \
73791 SLAB_DESTROY_BY_RCU | SLAB_MEM_SPREAD | \
73792 @@ -290,7 +290,7 @@ struct kmem_list3 {
73793 * Need this for bootstrapping a per node allocator.
73794 */
73795 #define NUM_INIT_LISTS (3 * MAX_NUMNODES)
73796 -static struct kmem_list3 __initdata initkmem_list3[NUM_INIT_LISTS];
73797 +static struct kmem_list3 initkmem_list3[NUM_INIT_LISTS];
73798 #define CACHE_CACHE 0
73799 #define SIZE_AC MAX_NUMNODES
73800 #define SIZE_L3 (2 * MAX_NUMNODES)
73801 @@ -391,10 +391,10 @@ static void kmem_list3_init(struct kmem_list3 *parent)
73802 if ((x)->max_freeable < i) \
73803 (x)->max_freeable = i; \
73804 } while (0)
73805 -#define STATS_INC_ALLOCHIT(x) atomic_inc(&(x)->allochit)
73806 -#define STATS_INC_ALLOCMISS(x) atomic_inc(&(x)->allocmiss)
73807 -#define STATS_INC_FREEHIT(x) atomic_inc(&(x)->freehit)
73808 -#define STATS_INC_FREEMISS(x) atomic_inc(&(x)->freemiss)
73809 +#define STATS_INC_ALLOCHIT(x) atomic_inc_unchecked(&(x)->allochit)
73810 +#define STATS_INC_ALLOCMISS(x) atomic_inc_unchecked(&(x)->allocmiss)
73811 +#define STATS_INC_FREEHIT(x) atomic_inc_unchecked(&(x)->freehit)
73812 +#define STATS_INC_FREEMISS(x) atomic_inc_unchecked(&(x)->freemiss)
73813 #else
73814 #define STATS_INC_ACTIVE(x) do { } while (0)
73815 #define STATS_DEC_ACTIVE(x) do { } while (0)
73816 @@ -542,7 +542,7 @@ static inline void *index_to_obj(struct kmem_cache *cache, struct slab *slab,
73817 * reciprocal_divide(offset, cache->reciprocal_buffer_size)
73818 */
73819 static inline unsigned int obj_to_index(const struct kmem_cache *cache,
73820 - const struct slab *slab, void *obj)
73821 + const struct slab *slab, const void *obj)
73822 {
73823 u32 offset = (obj - slab->s_mem);
73824 return reciprocal_divide(offset, cache->reciprocal_buffer_size);
73825 @@ -563,12 +563,13 @@ EXPORT_SYMBOL(malloc_sizes);
73826 struct cache_names {
73827 char *name;
73828 char *name_dma;
73829 + char *name_usercopy;
73830 };
73831
73832 static struct cache_names __initdata cache_names[] = {
73833 -#define CACHE(x) { .name = "size-" #x, .name_dma = "size-" #x "(DMA)" },
73834 +#define CACHE(x) { .name = "size-" #x, .name_dma = "size-" #x "(DMA)", .name_usercopy = "size-" #x "(USERCOPY)" },
73835 #include <linux/kmalloc_sizes.h>
73836 - {NULL,}
73837 + {NULL}
73838 #undef CACHE
73839 };
73840
73841 @@ -756,6 +757,12 @@ static inline struct kmem_cache *__find_general_cachep(size_t size,
73842 if (unlikely(gfpflags & GFP_DMA))
73843 return csizep->cs_dmacachep;
73844 #endif
73845 +
73846 +#ifdef CONFIG_PAX_USERCOPY_SLABS
73847 + if (unlikely(gfpflags & GFP_USERCOPY))
73848 + return csizep->cs_usercopycachep;
73849 +#endif
73850 +
73851 return csizep->cs_cachep;
73852 }
73853
73854 @@ -1588,7 +1595,7 @@ void __init kmem_cache_init(void)
73855 sizes[INDEX_AC].cs_cachep = kmem_cache_create(names[INDEX_AC].name,
73856 sizes[INDEX_AC].cs_size,
73857 ARCH_KMALLOC_MINALIGN,
73858 - ARCH_KMALLOC_FLAGS|SLAB_PANIC,
73859 + ARCH_KMALLOC_FLAGS|SLAB_PANIC|SLAB_USERCOPY,
73860 NULL);
73861
73862 if (INDEX_AC != INDEX_L3) {
73863 @@ -1596,7 +1603,7 @@ void __init kmem_cache_init(void)
73864 kmem_cache_create(names[INDEX_L3].name,
73865 sizes[INDEX_L3].cs_size,
73866 ARCH_KMALLOC_MINALIGN,
73867 - ARCH_KMALLOC_FLAGS|SLAB_PANIC,
73868 + ARCH_KMALLOC_FLAGS|SLAB_PANIC|SLAB_USERCOPY,
73869 NULL);
73870 }
73871
73872 @@ -1614,7 +1621,7 @@ void __init kmem_cache_init(void)
73873 sizes->cs_cachep = kmem_cache_create(names->name,
73874 sizes->cs_size,
73875 ARCH_KMALLOC_MINALIGN,
73876 - ARCH_KMALLOC_FLAGS|SLAB_PANIC,
73877 + ARCH_KMALLOC_FLAGS|SLAB_PANIC|SLAB_USERCOPY,
73878 NULL);
73879 }
73880 #ifdef CONFIG_ZONE_DMA
73881 @@ -1626,6 +1633,16 @@ void __init kmem_cache_init(void)
73882 SLAB_PANIC,
73883 NULL);
73884 #endif
73885 +
73886 +#ifdef CONFIG_PAX_USERCOPY_SLABS
73887 + sizes->cs_usercopycachep = kmem_cache_create(
73888 + names->name_usercopy,
73889 + sizes->cs_size,
73890 + ARCH_KMALLOC_MINALIGN,
73891 + ARCH_KMALLOC_FLAGS|SLAB_PANIC|SLAB_USERCOPY,
73892 + NULL);
73893 +#endif
73894 +
73895 sizes++;
73896 names++;
73897 }
73898 @@ -4390,10 +4407,10 @@ static int s_show(struct seq_file *m, void *p)
73899 }
73900 /* cpu stats */
73901 {
73902 - unsigned long allochit = atomic_read(&cachep->allochit);
73903 - unsigned long allocmiss = atomic_read(&cachep->allocmiss);
73904 - unsigned long freehit = atomic_read(&cachep->freehit);
73905 - unsigned long freemiss = atomic_read(&cachep->freemiss);
73906 + unsigned long allochit = atomic_read_unchecked(&cachep->allochit);
73907 + unsigned long allocmiss = atomic_read_unchecked(&cachep->allocmiss);
73908 + unsigned long freehit = atomic_read_unchecked(&cachep->freehit);
73909 + unsigned long freemiss = atomic_read_unchecked(&cachep->freemiss);
73910
73911 seq_printf(m, " : cpustat %6lu %6lu %6lu %6lu",
73912 allochit, allocmiss, freehit, freemiss);
73913 @@ -4652,13 +4669,68 @@ static int __init slab_proc_init(void)
73914 {
73915 proc_create("slabinfo",S_IWUSR|S_IRUSR,NULL,&proc_slabinfo_operations);
73916 #ifdef CONFIG_DEBUG_SLAB_LEAK
73917 - proc_create("slab_allocators", 0, NULL, &proc_slabstats_operations);
73918 + proc_create("slab_allocators", S_IRUSR, NULL, &proc_slabstats_operations);
73919 #endif
73920 return 0;
73921 }
73922 module_init(slab_proc_init);
73923 #endif
73924
73925 +bool is_usercopy_object(const void *ptr)
73926 +{
73927 + struct page *page;
73928 + struct kmem_cache *cachep;
73929 +
73930 + if (ZERO_OR_NULL_PTR(ptr))
73931 + return false;
73932 +
73933 + if (!virt_addr_valid(ptr))
73934 + return false;
73935 +
73936 + page = virt_to_head_page(ptr);
73937 +
73938 + if (!PageSlab(page))
73939 + return false;
73940 +
73941 + cachep = page_get_cache(page);
73942 + return cachep->flags & SLAB_USERCOPY;
73943 +}
73944 +
73945 +#ifdef CONFIG_PAX_USERCOPY
73946 +const char *check_heap_object(const void *ptr, unsigned long n, bool to)
73947 +{
73948 + struct page *page;
73949 + struct kmem_cache *cachep;
73950 + struct slab *slabp;
73951 + unsigned int objnr;
73952 + unsigned long offset;
73953 +
73954 + if (ZERO_OR_NULL_PTR(ptr))
73955 + return "<null>";
73956 +
73957 + if (!virt_addr_valid(ptr))
73958 + return NULL;
73959 +
73960 + page = virt_to_head_page(ptr);
73961 +
73962 + if (!PageSlab(page))
73963 + return NULL;
73964 +
73965 + cachep = page_get_cache(page);
73966 + if (!(cachep->flags & SLAB_USERCOPY))
73967 + return cachep->name;
73968 +
73969 + slabp = page_get_slab(page);
73970 + objnr = obj_to_index(cachep, slabp, ptr);
73971 + BUG_ON(objnr >= cachep->num);
73972 + offset = ptr - index_to_obj(cachep, slabp, objnr) - obj_offset(cachep);
73973 + if (offset <= obj_size(cachep) && n <= obj_size(cachep) - offset)
73974 + return NULL;
73975 +
73976 + return cachep->name;
73977 +}
73978 +#endif
73979 +
73980 /**
73981 * ksize - get the actual amount of memory allocated for a given object
73982 * @objp: Pointer to the object
73983 diff --git a/mm/slob.c b/mm/slob.c
73984 index 8105be4..3c15e57 100644
73985 --- a/mm/slob.c
73986 +++ b/mm/slob.c
73987 @@ -29,7 +29,7 @@
73988 * If kmalloc is asked for objects of PAGE_SIZE or larger, it calls
73989 * alloc_pages() directly, allocating compound pages so the page order
73990 * does not have to be separately tracked, and also stores the exact
73991 - * allocation size in page->private so that it can be used to accurately
73992 + * allocation size in slob_page->size so that it can be used to accurately
73993 * provide ksize(). These objects are detected in kfree() because slob_page()
73994 * is false for them.
73995 *
73996 @@ -58,6 +58,7 @@
73997 */
73998
73999 #include <linux/kernel.h>
74000 +#include <linux/sched.h>
74001 #include <linux/slab.h>
74002 #include <linux/mm.h>
74003 #include <linux/swap.h> /* struct reclaim_state */
74004 @@ -102,7 +103,8 @@ struct slob_page {
74005 unsigned long flags; /* mandatory */
74006 atomic_t _count; /* mandatory */
74007 slobidx_t units; /* free units left in page */
74008 - unsigned long pad[2];
74009 + unsigned long pad[1];
74010 + unsigned long size; /* size when >=PAGE_SIZE */
74011 slob_t *free; /* first free slob_t in page */
74012 struct list_head list; /* linked list of free pages */
74013 };
74014 @@ -135,7 +137,7 @@ static LIST_HEAD(free_slob_large);
74015 */
74016 static inline int is_slob_page(struct slob_page *sp)
74017 {
74018 - return PageSlab((struct page *)sp);
74019 + return PageSlab((struct page *)sp) && !sp->size;
74020 }
74021
74022 static inline void set_slob_page(struct slob_page *sp)
74023 @@ -150,7 +152,7 @@ static inline void clear_slob_page(struct slob_page *sp)
74024
74025 static inline struct slob_page *slob_page(const void *addr)
74026 {
74027 - return (struct slob_page *)virt_to_page(addr);
74028 + return (struct slob_page *)virt_to_head_page(addr);
74029 }
74030
74031 /*
74032 @@ -210,7 +212,7 @@ static void set_slob(slob_t *s, slobidx_t size, slob_t *next)
74033 /*
74034 * Return the size of a slob block.
74035 */
74036 -static slobidx_t slob_units(slob_t *s)
74037 +static slobidx_t slob_units(const slob_t *s)
74038 {
74039 if (s->units > 0)
74040 return s->units;
74041 @@ -220,7 +222,7 @@ static slobidx_t slob_units(slob_t *s)
74042 /*
74043 * Return the next free slob block pointer after this one.
74044 */
74045 -static slob_t *slob_next(slob_t *s)
74046 +static slob_t *slob_next(const slob_t *s)
74047 {
74048 slob_t *base = (slob_t *)((unsigned long)s & PAGE_MASK);
74049 slobidx_t next;
74050 @@ -235,7 +237,7 @@ static slob_t *slob_next(slob_t *s)
74051 /*
74052 * Returns true if s is the last free block in its page.
74053 */
74054 -static int slob_last(slob_t *s)
74055 +static int slob_last(const slob_t *s)
74056 {
74057 return !((unsigned long)slob_next(s) & ~PAGE_MASK);
74058 }
74059 @@ -254,6 +256,7 @@ static void *slob_new_pages(gfp_t gfp, int order, int node)
74060 if (!page)
74061 return NULL;
74062
74063 + set_slob_page(page);
74064 return page_address(page);
74065 }
74066
74067 @@ -370,11 +373,11 @@ static void *slob_alloc(size_t size, gfp_t gfp, int align, int node)
74068 if (!b)
74069 return NULL;
74070 sp = slob_page(b);
74071 - set_slob_page(sp);
74072
74073 spin_lock_irqsave(&slob_lock, flags);
74074 sp->units = SLOB_UNITS(PAGE_SIZE);
74075 sp->free = b;
74076 + sp->size = 0;
74077 INIT_LIST_HEAD(&sp->list);
74078 set_slob(b, SLOB_UNITS(PAGE_SIZE), b + SLOB_UNITS(PAGE_SIZE));
74079 set_slob_page_free(sp, slob_list);
74080 @@ -476,10 +479,9 @@ out:
74081 * End of slob allocator proper. Begin kmem_cache_alloc and kmalloc frontend.
74082 */
74083
74084 -void *__kmalloc_node(size_t size, gfp_t gfp, int node)
74085 +static void *__kmalloc_node_align(size_t size, gfp_t gfp, int node, int align)
74086 {
74087 - unsigned int *m;
74088 - int align = max(ARCH_KMALLOC_MINALIGN, ARCH_SLAB_MINALIGN);
74089 + slob_t *m;
74090 void *ret;
74091
74092 gfp &= gfp_allowed_mask;
74093 @@ -494,7 +496,10 @@ void *__kmalloc_node(size_t size, gfp_t gfp, int node)
74094
74095 if (!m)
74096 return NULL;
74097 - *m = size;
74098 + BUILD_BUG_ON(ARCH_KMALLOC_MINALIGN < 2 * SLOB_UNIT);
74099 + BUILD_BUG_ON(ARCH_SLAB_MINALIGN < 2 * SLOB_UNIT);
74100 + m[0].units = size;
74101 + m[1].units = align;
74102 ret = (void *)m + align;
74103
74104 trace_kmalloc_node(_RET_IP_, ret,
74105 @@ -506,16 +511,25 @@ void *__kmalloc_node(size_t size, gfp_t gfp, int node)
74106 gfp |= __GFP_COMP;
74107 ret = slob_new_pages(gfp, order, node);
74108 if (ret) {
74109 - struct page *page;
74110 - page = virt_to_page(ret);
74111 - page->private = size;
74112 + struct slob_page *sp;
74113 + sp = slob_page(ret);
74114 + sp->size = size;
74115 }
74116
74117 trace_kmalloc_node(_RET_IP_, ret,
74118 size, PAGE_SIZE << order, gfp, node);
74119 }
74120
74121 - kmemleak_alloc(ret, size, 1, gfp);
74122 + return ret;
74123 +}
74124 +
74125 +void *__kmalloc_node(size_t size, gfp_t gfp, int node)
74126 +{
74127 + int align = max(ARCH_KMALLOC_MINALIGN, ARCH_SLAB_MINALIGN);
74128 + void *ret = __kmalloc_node_align(size, gfp, node, align);
74129 +
74130 + if (!ZERO_OR_NULL_PTR(ret))
74131 + kmemleak_alloc(ret, size, 1, gfp);
74132 return ret;
74133 }
74134 EXPORT_SYMBOL(__kmalloc_node);
74135 @@ -533,13 +547,83 @@ void kfree(const void *block)
74136 sp = slob_page(block);
74137 if (is_slob_page(sp)) {
74138 int align = max(ARCH_KMALLOC_MINALIGN, ARCH_SLAB_MINALIGN);
74139 - unsigned int *m = (unsigned int *)(block - align);
74140 - slob_free(m, *m + align);
74141 - } else
74142 + slob_t *m = (slob_t *)(block - align);
74143 + slob_free(m, m[0].units + align);
74144 + } else {
74145 + clear_slob_page(sp);
74146 + free_slob_page(sp);
74147 + sp->size = 0;
74148 put_page(&sp->page);
74149 + }
74150 }
74151 EXPORT_SYMBOL(kfree);
74152
74153 +bool is_usercopy_object(const void *ptr)
74154 +{
74155 + return false;
74156 +}
74157 +
74158 +#ifdef CONFIG_PAX_USERCOPY
74159 +const char *check_heap_object(const void *ptr, unsigned long n, bool to)
74160 +{
74161 + struct slob_page *sp;
74162 + const slob_t *free;
74163 + const void *base;
74164 + unsigned long flags;
74165 +
74166 + if (ZERO_OR_NULL_PTR(ptr))
74167 + return "<null>";
74168 +
74169 + if (!virt_addr_valid(ptr))
74170 + return NULL;
74171 +
74172 + sp = slob_page(ptr);
74173 + if (!PageSlab((struct page *)sp))
74174 + return NULL;
74175 +
74176 + if (sp->size) {
74177 + base = page_address(&sp->page);
74178 + if (base <= ptr && n <= sp->size - (ptr - base))
74179 + return NULL;
74180 + return "<slob>";
74181 + }
74182 +
74183 + /* some tricky double walking to find the chunk */
74184 + spin_lock_irqsave(&slob_lock, flags);
74185 + base = (void *)((unsigned long)ptr & PAGE_MASK);
74186 + free = sp->free;
74187 +
74188 + while (!slob_last(free) && (void *)free <= ptr) {
74189 + base = free + slob_units(free);
74190 + free = slob_next(free);
74191 + }
74192 +
74193 + while (base < (void *)free) {
74194 + slobidx_t m = ((slob_t *)base)[0].units, align = ((slob_t *)base)[1].units;
74195 + int size = SLOB_UNIT * SLOB_UNITS(m + align);
74196 + int offset;
74197 +
74198 + if (ptr < base + align)
74199 + break;
74200 +
74201 + offset = ptr - base - align;
74202 + if (offset >= m) {
74203 + base += size;
74204 + continue;
74205 + }
74206 +
74207 + if (n > m - offset)
74208 + break;
74209 +
74210 + spin_unlock_irqrestore(&slob_lock, flags);
74211 + return NULL;
74212 + }
74213 +
74214 + spin_unlock_irqrestore(&slob_lock, flags);
74215 + return "<slob>";
74216 +}
74217 +#endif
74218 +
74219 /* can't use ksize for kmem_cache_alloc memory, only kmalloc */
74220 size_t ksize(const void *block)
74221 {
74222 @@ -552,10 +636,10 @@ size_t ksize(const void *block)
74223 sp = slob_page(block);
74224 if (is_slob_page(sp)) {
74225 int align = max(ARCH_KMALLOC_MINALIGN, ARCH_SLAB_MINALIGN);
74226 - unsigned int *m = (unsigned int *)(block - align);
74227 - return SLOB_UNITS(*m) * SLOB_UNIT;
74228 + slob_t *m = (slob_t *)(block - align);
74229 + return SLOB_UNITS(m[0].units) * SLOB_UNIT;
74230 } else
74231 - return sp->page.private;
74232 + return sp->size;
74233 }
74234 EXPORT_SYMBOL(ksize);
74235
74236 @@ -571,8 +655,13 @@ struct kmem_cache *kmem_cache_create(const char *name, size_t size,
74237 {
74238 struct kmem_cache *c;
74239
74240 +#ifdef CONFIG_PAX_USERCOPY_SLABS
74241 + c = __kmalloc_node_align(sizeof(struct kmem_cache),
74242 + GFP_KERNEL, -1, ARCH_KMALLOC_MINALIGN);
74243 +#else
74244 c = slob_alloc(sizeof(struct kmem_cache),
74245 GFP_KERNEL, ARCH_KMALLOC_MINALIGN, -1);
74246 +#endif
74247
74248 if (c) {
74249 c->name = name;
74250 @@ -614,17 +703,25 @@ void *kmem_cache_alloc_node(struct kmem_cache *c, gfp_t flags, int node)
74251
74252 lockdep_trace_alloc(flags);
74253
74254 +#ifdef CONFIG_PAX_USERCOPY_SLABS
74255 + b = __kmalloc_node_align(c->size, flags, node, c->align);
74256 +#else
74257 if (c->size < PAGE_SIZE) {
74258 b = slob_alloc(c->size, flags, c->align, node);
74259 trace_kmem_cache_alloc_node(_RET_IP_, b, c->size,
74260 SLOB_UNITS(c->size) * SLOB_UNIT,
74261 flags, node);
74262 } else {
74263 + struct slob_page *sp;
74264 +
74265 b = slob_new_pages(flags, get_order(c->size), node);
74266 + sp = slob_page(b);
74267 + sp->size = c->size;
74268 trace_kmem_cache_alloc_node(_RET_IP_, b, c->size,
74269 PAGE_SIZE << get_order(c->size),
74270 flags, node);
74271 }
74272 +#endif
74273
74274 if (c->ctor)
74275 c->ctor(b);
74276 @@ -636,10 +733,16 @@ EXPORT_SYMBOL(kmem_cache_alloc_node);
74277
74278 static void __kmem_cache_free(void *b, int size)
74279 {
74280 - if (size < PAGE_SIZE)
74281 + struct slob_page *sp = slob_page(b);
74282 +
74283 + if (is_slob_page(sp))
74284 slob_free(b, size);
74285 - else
74286 + else {
74287 + clear_slob_page(sp);
74288 + free_slob_page(sp);
74289 + sp->size = 0;
74290 slob_free_pages(b, get_order(size));
74291 + }
74292 }
74293
74294 static void kmem_rcu_free(struct rcu_head *head)
74295 @@ -652,17 +755,31 @@ static void kmem_rcu_free(struct rcu_head *head)
74296
74297 void kmem_cache_free(struct kmem_cache *c, void *b)
74298 {
74299 + int size = c->size;
74300 +
74301 +#ifdef CONFIG_PAX_USERCOPY_SLABS
74302 + if (size + c->align < PAGE_SIZE) {
74303 + size += c->align;
74304 + b -= c->align;
74305 + }
74306 +#endif
74307 +
74308 kmemleak_free_recursive(b, c->flags);
74309 if (unlikely(c->flags & SLAB_DESTROY_BY_RCU)) {
74310 struct slob_rcu *slob_rcu;
74311 - slob_rcu = b + (c->size - sizeof(struct slob_rcu));
74312 - slob_rcu->size = c->size;
74313 + slob_rcu = b + (size - sizeof(struct slob_rcu));
74314 + slob_rcu->size = size;
74315 call_rcu(&slob_rcu->head, kmem_rcu_free);
74316 } else {
74317 - __kmem_cache_free(b, c->size);
74318 + __kmem_cache_free(b, size);
74319 }
74320
74321 +#ifdef CONFIG_PAX_USERCOPY_SLABS
74322 + trace_kfree(_RET_IP_, b);
74323 +#else
74324 trace_kmem_cache_free(_RET_IP_, b);
74325 +#endif
74326 +
74327 }
74328 EXPORT_SYMBOL(kmem_cache_free);
74329
74330 diff --git a/mm/slub.c b/mm/slub.c
74331 index 8c691fa..ff23a85 100644
74332 --- a/mm/slub.c
74333 +++ b/mm/slub.c
74334 @@ -209,7 +209,7 @@ struct track {
74335
74336 enum track_item { TRACK_ALLOC, TRACK_FREE };
74337
74338 -#ifdef CONFIG_SYSFS
74339 +#if defined(CONFIG_SYSFS) && !defined(CONFIG_GRKERNSEC_PROC_ADD)
74340 static int sysfs_slab_add(struct kmem_cache *);
74341 static int sysfs_slab_alias(struct kmem_cache *, const char *);
74342 static void sysfs_slab_remove(struct kmem_cache *);
74343 @@ -538,7 +538,7 @@ static void print_track(const char *s, struct track *t)
74344 if (!t->addr)
74345 return;
74346
74347 - printk(KERN_ERR "INFO: %s in %pS age=%lu cpu=%u pid=%d\n",
74348 + printk(KERN_ERR "INFO: %s in %pA age=%lu cpu=%u pid=%d\n",
74349 s, (void *)t->addr, jiffies - t->when, t->cpu, t->pid);
74350 #ifdef CONFIG_STACKTRACE
74351 {
74352 @@ -2603,6 +2603,8 @@ void kmem_cache_free(struct kmem_cache *s, void *x)
74353
74354 page = virt_to_head_page(x);
74355
74356 + BUG_ON(!PageSlab(page));
74357 +
74358 slab_free(s, page, x, _RET_IP_);
74359
74360 trace_kmem_cache_free(_RET_IP_, x);
74361 @@ -2636,7 +2638,7 @@ static int slub_min_objects;
74362 * Merge control. If this is set then no merging of slab caches will occur.
74363 * (Could be removed. This was introduced to pacify the merge skeptics.)
74364 */
74365 -static int slub_nomerge;
74366 +static int slub_nomerge = 1;
74367
74368 /*
74369 * Calculate the order of allocation given an slab object size.
74370 @@ -3089,7 +3091,7 @@ static int kmem_cache_open(struct kmem_cache *s,
74371 else
74372 s->cpu_partial = 30;
74373
74374 - s->refcount = 1;
74375 + atomic_set(&s->refcount, 1);
74376 #ifdef CONFIG_NUMA
74377 s->remote_node_defrag_ratio = 1000;
74378 #endif
74379 @@ -3193,8 +3195,7 @@ static inline int kmem_cache_close(struct kmem_cache *s)
74380 void kmem_cache_destroy(struct kmem_cache *s)
74381 {
74382 down_write(&slub_lock);
74383 - s->refcount--;
74384 - if (!s->refcount) {
74385 + if (atomic_dec_and_test(&s->refcount)) {
74386 list_del(&s->list);
74387 up_write(&slub_lock);
74388 if (kmem_cache_close(s)) {
74389 @@ -3223,6 +3224,10 @@ static struct kmem_cache *kmem_cache;
74390 static struct kmem_cache *kmalloc_dma_caches[SLUB_PAGE_SHIFT];
74391 #endif
74392
74393 +#ifdef CONFIG_PAX_USERCOPY_SLABS
74394 +static struct kmem_cache *kmalloc_usercopy_caches[SLUB_PAGE_SHIFT];
74395 +#endif
74396 +
74397 static int __init setup_slub_min_order(char *str)
74398 {
74399 get_option(&str, &slub_min_order);
74400 @@ -3337,6 +3342,13 @@ static struct kmem_cache *get_slab(size_t size, gfp_t flags)
74401 return kmalloc_dma_caches[index];
74402
74403 #endif
74404 +
74405 +#ifdef CONFIG_PAX_USERCOPY_SLABS
74406 + if (flags & SLAB_USERCOPY)
74407 + return kmalloc_usercopy_caches[index];
74408 +
74409 +#endif
74410 +
74411 return kmalloc_caches[index];
74412 }
74413
74414 @@ -3405,6 +3417,56 @@ void *__kmalloc_node(size_t size, gfp_t flags, int node)
74415 EXPORT_SYMBOL(__kmalloc_node);
74416 #endif
74417
74418 +bool is_usercopy_object(const void *ptr)
74419 +{
74420 + struct page *page;
74421 + struct kmem_cache *s;
74422 +
74423 + if (ZERO_OR_NULL_PTR(ptr))
74424 + return false;
74425 +
74426 + if (!virt_addr_valid(ptr))
74427 + return false;
74428 +
74429 + page = virt_to_head_page(ptr);
74430 +
74431 + if (!PageSlab(page))
74432 + return false;
74433 +
74434 + s = page->slab;
74435 + return s->flags & SLAB_USERCOPY;
74436 +}
74437 +
74438 +#ifdef CONFIG_PAX_USERCOPY
74439 +const char *check_heap_object(const void *ptr, unsigned long n, bool to)
74440 +{
74441 + struct page *page;
74442 + struct kmem_cache *s;
74443 + unsigned long offset;
74444 +
74445 + if (ZERO_OR_NULL_PTR(ptr))
74446 + return "<null>";
74447 +
74448 + if (!virt_addr_valid(ptr))
74449 + return NULL;
74450 +
74451 + page = virt_to_head_page(ptr);
74452 +
74453 + if (!PageSlab(page))
74454 + return NULL;
74455 +
74456 + s = page->slab;
74457 + if (!(s->flags & SLAB_USERCOPY))
74458 + return s->name;
74459 +
74460 + offset = (ptr - page_address(page)) % s->size;
74461 + if (offset <= s->objsize && n <= s->objsize - offset)
74462 + return NULL;
74463 +
74464 + return s->name;
74465 +}
74466 +#endif
74467 +
74468 size_t ksize(const void *object)
74469 {
74470 struct page *page;
74471 @@ -3679,7 +3741,7 @@ static void __init kmem_cache_bootstrap_fixup(struct kmem_cache *s)
74472 int node;
74473
74474 list_add(&s->list, &slab_caches);
74475 - s->refcount = -1;
74476 + atomic_set(&s->refcount, -1);
74477
74478 for_each_node_state(node, N_NORMAL_MEMORY) {
74479 struct kmem_cache_node *n = get_node(s, node);
74480 @@ -3799,17 +3861,17 @@ void __init kmem_cache_init(void)
74481
74482 /* Caches that are not of the two-to-the-power-of size */
74483 if (KMALLOC_MIN_SIZE <= 32) {
74484 - kmalloc_caches[1] = create_kmalloc_cache("kmalloc-96", 96, 0);
74485 + kmalloc_caches[1] = create_kmalloc_cache("kmalloc-96", 96, SLAB_USERCOPY);
74486 caches++;
74487 }
74488
74489 if (KMALLOC_MIN_SIZE <= 64) {
74490 - kmalloc_caches[2] = create_kmalloc_cache("kmalloc-192", 192, 0);
74491 + kmalloc_caches[2] = create_kmalloc_cache("kmalloc-192", 192, SLAB_USERCOPY);
74492 caches++;
74493 }
74494
74495 for (i = KMALLOC_SHIFT_LOW; i < SLUB_PAGE_SHIFT; i++) {
74496 - kmalloc_caches[i] = create_kmalloc_cache("kmalloc", 1 << i, 0);
74497 + kmalloc_caches[i] = create_kmalloc_cache("kmalloc", 1 << i, SLAB_USERCOPY);
74498 caches++;
74499 }
74500
74501 @@ -3851,6 +3913,22 @@ void __init kmem_cache_init(void)
74502 }
74503 }
74504 #endif
74505 +
74506 +#ifdef CONFIG_PAX_USERCOPY_SLABS
74507 + for (i = 0; i < SLUB_PAGE_SHIFT; i++) {
74508 + struct kmem_cache *s = kmalloc_caches[i];
74509 +
74510 + if (s && s->size) {
74511 + char *name = kasprintf(GFP_NOWAIT,
74512 + "usercopy-kmalloc-%d", s->objsize);
74513 +
74514 + BUG_ON(!name);
74515 + kmalloc_usercopy_caches[i] = create_kmalloc_cache(name,
74516 + s->objsize, SLAB_USERCOPY);
74517 + }
74518 + }
74519 +#endif
74520 +
74521 printk(KERN_INFO
74522 "SLUB: Genslabs=%d, HWalign=%d, Order=%d-%d, MinObjects=%d,"
74523 " CPUs=%d, Nodes=%d\n",
74524 @@ -3877,7 +3955,7 @@ static int slab_unmergeable(struct kmem_cache *s)
74525 /*
74526 * We may have set a slab to be unmergeable during bootstrap.
74527 */
74528 - if (s->refcount < 0)
74529 + if (atomic_read(&s->refcount) < 0)
74530 return 1;
74531
74532 return 0;
74533 @@ -3936,7 +4014,7 @@ struct kmem_cache *kmem_cache_create(const char *name, size_t size,
74534 down_write(&slub_lock);
74535 s = find_mergeable(size, align, flags, name, ctor);
74536 if (s) {
74537 - s->refcount++;
74538 + atomic_inc(&s->refcount);
74539 /*
74540 * Adjust the object sizes so that we clear
74541 * the complete object on kzalloc.
74542 @@ -3945,7 +4023,7 @@ struct kmem_cache *kmem_cache_create(const char *name, size_t size,
74543 s->inuse = max_t(int, s->inuse, ALIGN(size, sizeof(void *)));
74544
74545 if (sysfs_slab_alias(s, name)) {
74546 - s->refcount--;
74547 + atomic_dec(&s->refcount);
74548 goto err;
74549 }
74550 up_write(&slub_lock);
74551 @@ -4074,7 +4152,7 @@ void *__kmalloc_node_track_caller(size_t size, gfp_t gfpflags,
74552 }
74553 #endif
74554
74555 -#ifdef CONFIG_SYSFS
74556 +#if defined(CONFIG_SYSFS) && !defined(CONFIG_GRKERNSEC_PROC_ADD)
74557 static int count_inuse(struct page *page)
74558 {
74559 return page->inuse;
74560 @@ -4461,12 +4539,12 @@ static void resiliency_test(void)
74561 validate_slab_cache(kmalloc_caches[9]);
74562 }
74563 #else
74564 -#ifdef CONFIG_SYSFS
74565 +#if defined(CONFIG_SYSFS) && !defined(CONFIG_GRKERNSEC_PROC_ADD)
74566 static void resiliency_test(void) {};
74567 #endif
74568 #endif
74569
74570 -#ifdef CONFIG_SYSFS
74571 +#if defined(CONFIG_SYSFS) && !defined(CONFIG_GRKERNSEC_PROC_ADD)
74572 enum slab_stat_type {
74573 SL_ALL, /* All slabs */
74574 SL_PARTIAL, /* Only partially allocated slabs */
74575 @@ -4709,7 +4787,7 @@ SLAB_ATTR_RO(ctor);
74576
74577 static ssize_t aliases_show(struct kmem_cache *s, char *buf)
74578 {
74579 - return sprintf(buf, "%d\n", s->refcount - 1);
74580 + return sprintf(buf, "%d\n", atomic_read(&s->refcount) - 1);
74581 }
74582 SLAB_ATTR_RO(aliases);
74583
74584 @@ -5280,6 +5358,7 @@ static char *create_unique_id(struct kmem_cache *s)
74585 return name;
74586 }
74587
74588 +#if defined(CONFIG_SYSFS) && !defined(CONFIG_GRKERNSEC_PROC_ADD)
74589 static int sysfs_slab_add(struct kmem_cache *s)
74590 {
74591 int err;
74592 @@ -5342,6 +5421,7 @@ static void sysfs_slab_remove(struct kmem_cache *s)
74593 kobject_del(&s->kobj);
74594 kobject_put(&s->kobj);
74595 }
74596 +#endif
74597
74598 /*
74599 * Need to buffer aliases during bootup until sysfs becomes
74600 @@ -5355,6 +5435,7 @@ struct saved_alias {
74601
74602 static struct saved_alias *alias_list;
74603
74604 +#if defined(CONFIG_SYSFS) && !defined(CONFIG_GRKERNSEC_PROC_ADD)
74605 static int sysfs_slab_alias(struct kmem_cache *s, const char *name)
74606 {
74607 struct saved_alias *al;
74608 @@ -5377,6 +5458,7 @@ static int sysfs_slab_alias(struct kmem_cache *s, const char *name)
74609 alias_list = al;
74610 return 0;
74611 }
74612 +#endif
74613
74614 static int __init slab_sysfs_init(void)
74615 {
74616 diff --git a/mm/sparse-vmemmap.c b/mm/sparse-vmemmap.c
74617 index 1b7e22a..3fcd4f3 100644
74618 --- a/mm/sparse-vmemmap.c
74619 +++ b/mm/sparse-vmemmap.c
74620 @@ -128,7 +128,7 @@ pud_t * __meminit vmemmap_pud_populate(pgd_t *pgd, unsigned long addr, int node)
74621 void *p = vmemmap_alloc_block(PAGE_SIZE, node);
74622 if (!p)
74623 return NULL;
74624 - pud_populate(&init_mm, pud, p);
74625 + pud_populate_kernel(&init_mm, pud, p);
74626 }
74627 return pud;
74628 }
74629 @@ -140,7 +140,7 @@ pgd_t * __meminit vmemmap_pgd_populate(unsigned long addr, int node)
74630 void *p = vmemmap_alloc_block(PAGE_SIZE, node);
74631 if (!p)
74632 return NULL;
74633 - pgd_populate(&init_mm, pgd, p);
74634 + pgd_populate_kernel(&init_mm, pgd, p);
74635 }
74636 return pgd;
74637 }
74638 diff --git a/mm/swap.c b/mm/swap.c
74639 index 4e7e2ec..0c57830 100644
74640 --- a/mm/swap.c
74641 +++ b/mm/swap.c
74642 @@ -30,6 +30,7 @@
74643 #include <linux/backing-dev.h>
74644 #include <linux/memcontrol.h>
74645 #include <linux/gfp.h>
74646 +#include <linux/hugetlb.h>
74647
74648 #include "internal.h"
74649
74650 @@ -72,6 +73,8 @@ static void __put_compound_page(struct page *page)
74651
74652 __page_cache_release(page);
74653 dtor = get_compound_page_dtor(page);
74654 + if (!PageHuge(page))
74655 + BUG_ON(dtor != free_compound_page);
74656 (*dtor)(page);
74657 }
74658
74659 diff --git a/mm/swapfile.c b/mm/swapfile.c
74660 index 71373d0..11fa7d9 100644
74661 --- a/mm/swapfile.c
74662 +++ b/mm/swapfile.c
74663 @@ -63,7 +63,7 @@ static DEFINE_MUTEX(swapon_mutex);
74664
74665 static DECLARE_WAIT_QUEUE_HEAD(proc_poll_wait);
74666 /* Activity counter to indicate that a swapon or swapoff has occurred */
74667 -static atomic_t proc_poll_event = ATOMIC_INIT(0);
74668 +static atomic_unchecked_t proc_poll_event = ATOMIC_INIT(0);
74669
74670 static inline unsigned char swap_count(unsigned char ent)
74671 {
74672 @@ -1663,7 +1663,7 @@ SYSCALL_DEFINE1(swapoff, const char __user *, specialfile)
74673 }
74674 filp_close(swap_file, NULL);
74675 err = 0;
74676 - atomic_inc(&proc_poll_event);
74677 + atomic_inc_unchecked(&proc_poll_event);
74678 wake_up_interruptible(&proc_poll_wait);
74679
74680 out_dput:
74681 @@ -1679,8 +1679,8 @@ static unsigned swaps_poll(struct file *file, poll_table *wait)
74682
74683 poll_wait(file, &proc_poll_wait, wait);
74684
74685 - if (seq->poll_event != atomic_read(&proc_poll_event)) {
74686 - seq->poll_event = atomic_read(&proc_poll_event);
74687 + if (seq->poll_event != atomic_read_unchecked(&proc_poll_event)) {
74688 + seq->poll_event = atomic_read_unchecked(&proc_poll_event);
74689 return POLLIN | POLLRDNORM | POLLERR | POLLPRI;
74690 }
74691
74692 @@ -1778,7 +1778,7 @@ static int swaps_open(struct inode *inode, struct file *file)
74693 return ret;
74694
74695 seq = file->private_data;
74696 - seq->poll_event = atomic_read(&proc_poll_event);
74697 + seq->poll_event = atomic_read_unchecked(&proc_poll_event);
74698 return 0;
74699 }
74700
74701 @@ -2120,7 +2120,7 @@ SYSCALL_DEFINE2(swapon, const char __user *, specialfile, int, swap_flags)
74702 (frontswap_map) ? "FS" : "");
74703
74704 mutex_unlock(&swapon_mutex);
74705 - atomic_inc(&proc_poll_event);
74706 + atomic_inc_unchecked(&proc_poll_event);
74707 wake_up_interruptible(&proc_poll_wait);
74708
74709 if (S_ISREG(inode->i_mode))
74710 diff --git a/mm/util.c b/mm/util.c
74711 index 8c7265a..c96d884 100644
74712 --- a/mm/util.c
74713 +++ b/mm/util.c
74714 @@ -285,6 +285,12 @@ done:
74715 void arch_pick_mmap_layout(struct mm_struct *mm)
74716 {
74717 mm->mmap_base = TASK_UNMAPPED_BASE;
74718 +
74719 +#ifdef CONFIG_PAX_RANDMMAP
74720 + if (mm->pax_flags & MF_PAX_RANDMMAP)
74721 + mm->mmap_base += mm->delta_mmap;
74722 +#endif
74723 +
74724 mm->get_unmapped_area = arch_get_unmapped_area;
74725 mm->unmap_area = arch_unmap_area;
74726 }
74727 diff --git a/mm/vmalloc.c b/mm/vmalloc.c
74728 index 2aad499..4006a74 100644
74729 --- a/mm/vmalloc.c
74730 +++ b/mm/vmalloc.c
74731 @@ -39,8 +39,19 @@ static void vunmap_pte_range(pmd_t *pmd, unsigned long addr, unsigned long end)
74732
74733 pte = pte_offset_kernel(pmd, addr);
74734 do {
74735 - pte_t ptent = ptep_get_and_clear(&init_mm, addr, pte);
74736 - WARN_ON(!pte_none(ptent) && !pte_present(ptent));
74737 +
74738 +#if defined(CONFIG_MODULES) && defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
74739 + if ((unsigned long)MODULES_EXEC_VADDR <= addr && addr < (unsigned long)MODULES_EXEC_END) {
74740 + BUG_ON(!pte_exec(*pte));
74741 + set_pte_at(&init_mm, addr, pte, pfn_pte(__pa(addr) >> PAGE_SHIFT, PAGE_KERNEL_EXEC));
74742 + continue;
74743 + }
74744 +#endif
74745 +
74746 + {
74747 + pte_t ptent = ptep_get_and_clear(&init_mm, addr, pte);
74748 + WARN_ON(!pte_none(ptent) && !pte_present(ptent));
74749 + }
74750 } while (pte++, addr += PAGE_SIZE, addr != end);
74751 }
74752
74753 @@ -91,6 +102,7 @@ static int vmap_pte_range(pmd_t *pmd, unsigned long addr,
74754 unsigned long end, pgprot_t prot, struct page **pages, int *nr)
74755 {
74756 pte_t *pte;
74757 + int ret = -ENOMEM;
74758
74759 /*
74760 * nr is a running index into the array which helps higher level
74761 @@ -100,17 +112,30 @@ static int vmap_pte_range(pmd_t *pmd, unsigned long addr,
74762 pte = pte_alloc_kernel(pmd, addr);
74763 if (!pte)
74764 return -ENOMEM;
74765 +
74766 + pax_open_kernel();
74767 do {
74768 struct page *page = pages[*nr];
74769
74770 - if (WARN_ON(!pte_none(*pte)))
74771 - return -EBUSY;
74772 - if (WARN_ON(!page))
74773 - return -ENOMEM;
74774 +#if defined(CONFIG_MODULES) && defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
74775 + if (pgprot_val(prot) & _PAGE_NX)
74776 +#endif
74777 +
74778 + if (WARN_ON(!pte_none(*pte))) {
74779 + ret = -EBUSY;
74780 + goto out;
74781 + }
74782 + if (WARN_ON(!page)) {
74783 + ret = -ENOMEM;
74784 + goto out;
74785 + }
74786 set_pte_at(&init_mm, addr, pte, mk_pte(page, prot));
74787 (*nr)++;
74788 } while (pte++, addr += PAGE_SIZE, addr != end);
74789 - return 0;
74790 + ret = 0;
74791 +out:
74792 + pax_close_kernel();
74793 + return ret;
74794 }
74795
74796 static int vmap_pmd_range(pud_t *pud, unsigned long addr,
74797 @@ -119,7 +144,7 @@ static int vmap_pmd_range(pud_t *pud, unsigned long addr,
74798 pmd_t *pmd;
74799 unsigned long next;
74800
74801 - pmd = pmd_alloc(&init_mm, pud, addr);
74802 + pmd = pmd_alloc_kernel(&init_mm, pud, addr);
74803 if (!pmd)
74804 return -ENOMEM;
74805 do {
74806 @@ -136,7 +161,7 @@ static int vmap_pud_range(pgd_t *pgd, unsigned long addr,
74807 pud_t *pud;
74808 unsigned long next;
74809
74810 - pud = pud_alloc(&init_mm, pgd, addr);
74811 + pud = pud_alloc_kernel(&init_mm, pgd, addr);
74812 if (!pud)
74813 return -ENOMEM;
74814 do {
74815 @@ -191,11 +216,20 @@ int is_vmalloc_or_module_addr(const void *x)
74816 * and fall back on vmalloc() if that fails. Others
74817 * just put it in the vmalloc space.
74818 */
74819 -#if defined(CONFIG_MODULES) && defined(MODULES_VADDR)
74820 +#ifdef CONFIG_MODULES
74821 +#ifdef MODULES_VADDR
74822 unsigned long addr = (unsigned long)x;
74823 if (addr >= MODULES_VADDR && addr < MODULES_END)
74824 return 1;
74825 #endif
74826 +
74827 +#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
74828 + if (x >= (const void *)MODULES_EXEC_VADDR && x < (const void *)MODULES_EXEC_END)
74829 + return 1;
74830 +#endif
74831 +
74832 +#endif
74833 +
74834 return is_vmalloc_addr(x);
74835 }
74836
74837 @@ -216,8 +250,14 @@ struct page *vmalloc_to_page(const void *vmalloc_addr)
74838
74839 if (!pgd_none(*pgd)) {
74840 pud_t *pud = pud_offset(pgd, addr);
74841 +#ifdef CONFIG_X86
74842 + if (!pud_large(*pud))
74843 +#endif
74844 if (!pud_none(*pud)) {
74845 pmd_t *pmd = pmd_offset(pud, addr);
74846 +#ifdef CONFIG_X86
74847 + if (!pmd_large(*pmd))
74848 +#endif
74849 if (!pmd_none(*pmd)) {
74850 pte_t *ptep, pte;
74851
74852 @@ -329,7 +369,7 @@ static void purge_vmap_area_lazy(void);
74853 * Allocate a region of KVA of the specified size and alignment, within the
74854 * vstart and vend.
74855 */
74856 -static struct vmap_area *alloc_vmap_area(unsigned long size,
74857 +static __size_overflow(1) struct vmap_area *alloc_vmap_area(unsigned long size,
74858 unsigned long align,
74859 unsigned long vstart, unsigned long vend,
74860 int node, gfp_t gfp_mask)
74861 @@ -1320,6 +1360,16 @@ static struct vm_struct *__get_vm_area_node(unsigned long size,
74862 struct vm_struct *area;
74863
74864 BUG_ON(in_interrupt());
74865 +
74866 +#if defined(CONFIG_MODULES) && defined(CONFIG_X86) && defined(CONFIG_PAX_KERNEXEC)
74867 + if (flags & VM_KERNEXEC) {
74868 + if (start != VMALLOC_START || end != VMALLOC_END)
74869 + return NULL;
74870 + start = (unsigned long)MODULES_EXEC_VADDR;
74871 + end = (unsigned long)MODULES_EXEC_END;
74872 + }
74873 +#endif
74874 +
74875 if (flags & VM_IOREMAP) {
74876 int bit = fls(size);
74877
74878 @@ -1552,6 +1602,11 @@ void *vmap(struct page **pages, unsigned int count,
74879 if (count > totalram_pages)
74880 return NULL;
74881
74882 +#if defined(CONFIG_MODULES) && defined(CONFIG_X86) && defined(CONFIG_PAX_KERNEXEC)
74883 + if (!(pgprot_val(prot) & _PAGE_NX))
74884 + flags |= VM_KERNEXEC;
74885 +#endif
74886 +
74887 area = get_vm_area_caller((count << PAGE_SHIFT), flags,
74888 __builtin_return_address(0));
74889 if (!area)
74890 @@ -1653,6 +1708,13 @@ void *__vmalloc_node_range(unsigned long size, unsigned long align,
74891 if (!size || (size >> PAGE_SHIFT) > totalram_pages)
74892 goto fail;
74893
74894 +#if defined(CONFIG_MODULES) && defined(CONFIG_X86) && defined(CONFIG_PAX_KERNEXEC)
74895 + if (!(pgprot_val(prot) & _PAGE_NX))
74896 + area = __get_vm_area_node(size, align, VM_ALLOC | VM_UNLIST | VM_KERNEXEC,
74897 + VMALLOC_START, VMALLOC_END, node, gfp_mask, caller);
74898 + else
74899 +#endif
74900 +
74901 area = __get_vm_area_node(size, align, VM_ALLOC | VM_UNLIST,
74902 start, end, node, gfp_mask, caller);
74903 if (!area)
74904 @@ -1826,10 +1888,9 @@ EXPORT_SYMBOL(vzalloc_node);
74905 * For tight control over page level allocator and protection flags
74906 * use __vmalloc() instead.
74907 */
74908 -
74909 void *vmalloc_exec(unsigned long size)
74910 {
74911 - return __vmalloc_node(size, 1, GFP_KERNEL | __GFP_HIGHMEM, PAGE_KERNEL_EXEC,
74912 + return __vmalloc_node(size, 1, GFP_KERNEL | __GFP_HIGHMEM | __GFP_ZERO, PAGE_KERNEL_EXEC,
74913 -1, __builtin_return_address(0));
74914 }
74915
74916 @@ -2124,6 +2185,8 @@ int remap_vmalloc_range(struct vm_area_struct *vma, void *addr,
74917 unsigned long uaddr = vma->vm_start;
74918 unsigned long usize = vma->vm_end - vma->vm_start;
74919
74920 + BUG_ON(vma->vm_mirror);
74921 +
74922 if ((PAGE_SIZE-1) & (unsigned long)addr)
74923 return -EINVAL;
74924
74925 diff --git a/mm/vmstat.c b/mm/vmstat.c
74926 index 1bbbbd9..ff35669 100644
74927 --- a/mm/vmstat.c
74928 +++ b/mm/vmstat.c
74929 @@ -78,7 +78,7 @@ void vm_events_fold_cpu(int cpu)
74930 *
74931 * vm_stat contains the global counters
74932 */
74933 -atomic_long_t vm_stat[NR_VM_ZONE_STAT_ITEMS] __cacheline_aligned_in_smp;
74934 +atomic_long_unchecked_t vm_stat[NR_VM_ZONE_STAT_ITEMS] __cacheline_aligned_in_smp;
74935 EXPORT_SYMBOL(vm_stat);
74936
74937 #ifdef CONFIG_SMP
74938 @@ -454,7 +454,7 @@ void refresh_cpu_vm_stats(int cpu)
74939 v = p->vm_stat_diff[i];
74940 p->vm_stat_diff[i] = 0;
74941 local_irq_restore(flags);
74942 - atomic_long_add(v, &zone->vm_stat[i]);
74943 + atomic_long_add_unchecked(v, &zone->vm_stat[i]);
74944 global_diff[i] += v;
74945 #ifdef CONFIG_NUMA
74946 /* 3 seconds idle till flush */
74947 @@ -492,7 +492,7 @@ void refresh_cpu_vm_stats(int cpu)
74948
74949 for (i = 0; i < NR_VM_ZONE_STAT_ITEMS; i++)
74950 if (global_diff[i])
74951 - atomic_long_add(global_diff[i], &vm_stat[i]);
74952 + atomic_long_add_unchecked(global_diff[i], &vm_stat[i]);
74953 }
74954
74955 #endif
74956 @@ -1211,10 +1211,20 @@ static int __init setup_vmstat(void)
74957 start_cpu_timer(cpu);
74958 #endif
74959 #ifdef CONFIG_PROC_FS
74960 - proc_create("buddyinfo", S_IRUGO, NULL, &fragmentation_file_operations);
74961 - proc_create("pagetypeinfo", S_IRUGO, NULL, &pagetypeinfo_file_ops);
74962 - proc_create("vmstat", S_IRUGO, NULL, &proc_vmstat_file_operations);
74963 - proc_create("zoneinfo", S_IRUGO, NULL, &proc_zoneinfo_file_operations);
74964 + {
74965 + mode_t gr_mode = S_IRUGO;
74966 +#ifdef CONFIG_GRKERNSEC_PROC_ADD
74967 + gr_mode = S_IRUSR;
74968 +#endif
74969 + proc_create("buddyinfo", gr_mode, NULL, &fragmentation_file_operations);
74970 + proc_create("pagetypeinfo", gr_mode, NULL, &pagetypeinfo_file_ops);
74971 +#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
74972 + proc_create("vmstat", gr_mode | S_IRGRP, NULL, &proc_vmstat_file_operations);
74973 +#else
74974 + proc_create("vmstat", gr_mode, NULL, &proc_vmstat_file_operations);
74975 +#endif
74976 + proc_create("zoneinfo", gr_mode, NULL, &proc_zoneinfo_file_operations);
74977 + }
74978 #endif
74979 return 0;
74980 }
74981 diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c
74982 index 9096bcb..43ed7bb 100644
74983 --- a/net/8021q/vlan.c
74984 +++ b/net/8021q/vlan.c
74985 @@ -557,8 +557,7 @@ static int vlan_ioctl_handler(struct net *net, void __user *arg)
74986 err = -EPERM;
74987 if (!capable(CAP_NET_ADMIN))
74988 break;
74989 - if ((args.u.name_type >= 0) &&
74990 - (args.u.name_type < VLAN_NAME_TYPE_HIGHEST)) {
74991 + if (args.u.name_type < VLAN_NAME_TYPE_HIGHEST) {
74992 struct vlan_net *vn;
74993
74994 vn = net_generic(net, vlan_net_id);
74995 diff --git a/net/9p/trans_fd.c b/net/9p/trans_fd.c
74996 index 6449bae..8c1f454 100644
74997 --- a/net/9p/trans_fd.c
74998 +++ b/net/9p/trans_fd.c
74999 @@ -425,7 +425,7 @@ static int p9_fd_write(struct p9_client *client, void *v, int len)
75000 oldfs = get_fs();
75001 set_fs(get_ds());
75002 /* The cast to a user pointer is valid due to the set_fs() */
75003 - ret = vfs_write(ts->wr, (__force void __user *)v, len, &ts->wr->f_pos);
75004 + ret = vfs_write(ts->wr, (void __force_user *)v, len, &ts->wr->f_pos);
75005 set_fs(oldfs);
75006
75007 if (ret <= 0 && ret != -ERESTARTSYS && ret != -EAGAIN)
75008 diff --git a/net/atm/atm_misc.c b/net/atm/atm_misc.c
75009 index 876fbe8..8bbea9f 100644
75010 --- a/net/atm/atm_misc.c
75011 +++ b/net/atm/atm_misc.c
75012 @@ -17,7 +17,7 @@ int atm_charge(struct atm_vcc *vcc, int truesize)
75013 if (atomic_read(&sk_atm(vcc)->sk_rmem_alloc) <= sk_atm(vcc)->sk_rcvbuf)
75014 return 1;
75015 atm_return(vcc, truesize);
75016 - atomic_inc(&vcc->stats->rx_drop);
75017 + atomic_inc_unchecked(&vcc->stats->rx_drop);
75018 return 0;
75019 }
75020 EXPORT_SYMBOL(atm_charge);
75021 @@ -39,7 +39,7 @@ struct sk_buff *atm_alloc_charge(struct atm_vcc *vcc, int pdu_size,
75022 }
75023 }
75024 atm_return(vcc, guess);
75025 - atomic_inc(&vcc->stats->rx_drop);
75026 + atomic_inc_unchecked(&vcc->stats->rx_drop);
75027 return NULL;
75028 }
75029 EXPORT_SYMBOL(atm_alloc_charge);
75030 @@ -86,7 +86,7 @@ EXPORT_SYMBOL(atm_pcr_goal);
75031
75032 void sonet_copy_stats(struct k_sonet_stats *from, struct sonet_stats *to)
75033 {
75034 -#define __HANDLE_ITEM(i) to->i = atomic_read(&from->i)
75035 +#define __HANDLE_ITEM(i) to->i = atomic_read_unchecked(&from->i)
75036 __SONET_ITEMS
75037 #undef __HANDLE_ITEM
75038 }
75039 @@ -94,7 +94,7 @@ EXPORT_SYMBOL(sonet_copy_stats);
75040
75041 void sonet_subtract_stats(struct k_sonet_stats *from, struct sonet_stats *to)
75042 {
75043 -#define __HANDLE_ITEM(i) atomic_sub(to->i, &from->i)
75044 +#define __HANDLE_ITEM(i) atomic_sub_unchecked(to->i,&from->i)
75045 __SONET_ITEMS
75046 #undef __HANDLE_ITEM
75047 }
75048 diff --git a/net/atm/lec.h b/net/atm/lec.h
75049 index a86aff9..3a0d6f6 100644
75050 --- a/net/atm/lec.h
75051 +++ b/net/atm/lec.h
75052 @@ -48,7 +48,7 @@ struct lane2_ops {
75053 const u8 *tlvs, u32 sizeoftlvs);
75054 void (*associate_indicator) (struct net_device *dev, const u8 *mac_addr,
75055 const u8 *tlvs, u32 sizeoftlvs);
75056 -};
75057 +} __no_const;
75058
75059 /*
75060 * ATM LAN Emulation supports both LLC & Dix Ethernet EtherType
75061 diff --git a/net/atm/mpc.h b/net/atm/mpc.h
75062 index 0919a88..a23d54e 100644
75063 --- a/net/atm/mpc.h
75064 +++ b/net/atm/mpc.h
75065 @@ -33,7 +33,7 @@ struct mpoa_client {
75066 struct mpc_parameters parameters; /* parameters for this client */
75067
75068 const struct net_device_ops *old_ops;
75069 - struct net_device_ops new_ops;
75070 + net_device_ops_no_const new_ops;
75071 };
75072
75073
75074 diff --git a/net/atm/proc.c b/net/atm/proc.c
75075 index 0d020de..011c7bb 100644
75076 --- a/net/atm/proc.c
75077 +++ b/net/atm/proc.c
75078 @@ -45,9 +45,9 @@ static void add_stats(struct seq_file *seq, const char *aal,
75079 const struct k_atm_aal_stats *stats)
75080 {
75081 seq_printf(seq, "%s ( %d %d %d %d %d )", aal,
75082 - atomic_read(&stats->tx), atomic_read(&stats->tx_err),
75083 - atomic_read(&stats->rx), atomic_read(&stats->rx_err),
75084 - atomic_read(&stats->rx_drop));
75085 + atomic_read_unchecked(&stats->tx),atomic_read_unchecked(&stats->tx_err),
75086 + atomic_read_unchecked(&stats->rx),atomic_read_unchecked(&stats->rx_err),
75087 + atomic_read_unchecked(&stats->rx_drop));
75088 }
75089
75090 static void atm_dev_info(struct seq_file *seq, const struct atm_dev *dev)
75091 diff --git a/net/atm/resources.c b/net/atm/resources.c
75092 index 23f45ce..c748f1a 100644
75093 --- a/net/atm/resources.c
75094 +++ b/net/atm/resources.c
75095 @@ -160,7 +160,7 @@ EXPORT_SYMBOL(atm_dev_deregister);
75096 static void copy_aal_stats(struct k_atm_aal_stats *from,
75097 struct atm_aal_stats *to)
75098 {
75099 -#define __HANDLE_ITEM(i) to->i = atomic_read(&from->i)
75100 +#define __HANDLE_ITEM(i) to->i = atomic_read_unchecked(&from->i)
75101 __AAL_STAT_ITEMS
75102 #undef __HANDLE_ITEM
75103 }
75104 @@ -168,7 +168,7 @@ static void copy_aal_stats(struct k_atm_aal_stats *from,
75105 static void subtract_aal_stats(struct k_atm_aal_stats *from,
75106 struct atm_aal_stats *to)
75107 {
75108 -#define __HANDLE_ITEM(i) atomic_sub(to->i, &from->i)
75109 +#define __HANDLE_ITEM(i) atomic_sub_unchecked(to->i, &from->i)
75110 __AAL_STAT_ITEMS
75111 #undef __HANDLE_ITEM
75112 }
75113 diff --git a/net/batman-adv/bat_iv_ogm.c b/net/batman-adv/bat_iv_ogm.c
75114 index dc53798..dc66333 100644
75115 --- a/net/batman-adv/bat_iv_ogm.c
75116 +++ b/net/batman-adv/bat_iv_ogm.c
75117 @@ -63,7 +63,7 @@ static int bat_iv_ogm_iface_enable(struct hard_iface *hard_iface)
75118
75119 /* randomize initial seqno to avoid collision */
75120 get_random_bytes(&random_seqno, sizeof(random_seqno));
75121 - atomic_set(&hard_iface->seqno, random_seqno);
75122 + atomic_set_unchecked(&hard_iface->seqno, random_seqno);
75123
75124 hard_iface->packet_len = BATMAN_OGM_HLEN;
75125 hard_iface->packet_buff = kmalloc(hard_iface->packet_len, GFP_ATOMIC);
75126 @@ -572,7 +572,7 @@ static void bat_iv_ogm_schedule(struct hard_iface *hard_iface,
75127
75128 /* change sequence number to network order */
75129 batman_ogm_packet->seqno =
75130 - htonl((uint32_t)atomic_read(&hard_iface->seqno));
75131 + htonl((uint32_t)atomic_read_unchecked(&hard_iface->seqno));
75132
75133 batman_ogm_packet->ttvn = atomic_read(&bat_priv->ttvn);
75134 batman_ogm_packet->tt_crc = htons((uint16_t)
75135 @@ -592,7 +592,7 @@ static void bat_iv_ogm_schedule(struct hard_iface *hard_iface,
75136 else
75137 batman_ogm_packet->gw_flags = NO_FLAGS;
75138
75139 - atomic_inc(&hard_iface->seqno);
75140 + atomic_inc_unchecked(&hard_iface->seqno);
75141
75142 slide_own_bcast_window(hard_iface);
75143 bat_iv_ogm_queue_add(bat_priv, hard_iface->packet_buff,
75144 @@ -956,7 +956,7 @@ static void bat_iv_ogm_process(const struct ethhdr *ethhdr,
75145 return;
75146
75147 /* could be changed by schedule_own_packet() */
75148 - if_incoming_seqno = atomic_read(&if_incoming->seqno);
75149 + if_incoming_seqno = atomic_read_unchecked(&if_incoming->seqno);
75150
75151 has_directlink_flag = (batman_ogm_packet->flags & DIRECTLINK ? 1 : 0);
75152
75153 diff --git a/net/batman-adv/hard-interface.c b/net/batman-adv/hard-interface.c
75154 index dc334fa..766a01a 100644
75155 --- a/net/batman-adv/hard-interface.c
75156 +++ b/net/batman-adv/hard-interface.c
75157 @@ -321,7 +321,7 @@ int hardif_enable_interface(struct hard_iface *hard_iface,
75158 hard_iface->batman_adv_ptype.dev = hard_iface->net_dev;
75159 dev_add_pack(&hard_iface->batman_adv_ptype);
75160
75161 - atomic_set(&hard_iface->frag_seqno, 1);
75162 + atomic_set_unchecked(&hard_iface->frag_seqno, 1);
75163 bat_info(hard_iface->soft_iface, "Adding interface: %s\n",
75164 hard_iface->net_dev->name);
75165
75166 @@ -444,7 +444,7 @@ static struct hard_iface *hardif_add_interface(struct net_device *net_dev)
75167 * This can't be called via a bat_priv callback because
75168 * we have no bat_priv yet.
75169 */
75170 - atomic_set(&hard_iface->seqno, 1);
75171 + atomic_set_unchecked(&hard_iface->seqno, 1);
75172 hard_iface->packet_buff = NULL;
75173
75174 return hard_iface;
75175 diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c
75176 index a0ec0e4..7beb587 100644
75177 --- a/net/batman-adv/soft-interface.c
75178 +++ b/net/batman-adv/soft-interface.c
75179 @@ -214,7 +214,7 @@ static int interface_tx(struct sk_buff *skb, struct net_device *soft_iface)
75180
75181 /* set broadcast sequence number */
75182 bcast_packet->seqno =
75183 - htonl(atomic_inc_return(&bat_priv->bcast_seqno));
75184 + htonl(atomic_inc_return_unchecked(&bat_priv->bcast_seqno));
75185
75186 add_bcast_packet_to_list(bat_priv, skb, 1);
75187
75188 @@ -390,7 +390,7 @@ struct net_device *softif_create(const char *name)
75189 atomic_set(&bat_priv->batman_queue_left, BATMAN_QUEUE_LEN);
75190
75191 atomic_set(&bat_priv->mesh_state, MESH_INACTIVE);
75192 - atomic_set(&bat_priv->bcast_seqno, 1);
75193 + atomic_set_unchecked(&bat_priv->bcast_seqno, 1);
75194 atomic_set(&bat_priv->ttvn, 0);
75195 atomic_set(&bat_priv->tt_local_changes, 0);
75196 atomic_set(&bat_priv->tt_ogm_append_cnt, 0);
75197 diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h
75198 index 61308e8..2e142b2 100644
75199 --- a/net/batman-adv/types.h
75200 +++ b/net/batman-adv/types.h
75201 @@ -38,8 +38,8 @@ struct hard_iface {
75202 int16_t if_num;
75203 char if_status;
75204 struct net_device *net_dev;
75205 - atomic_t seqno;
75206 - atomic_t frag_seqno;
75207 + atomic_unchecked_t seqno;
75208 + atomic_unchecked_t frag_seqno;
75209 unsigned char *packet_buff;
75210 int packet_len;
75211 struct kobject *hardif_obj;
75212 @@ -163,7 +163,7 @@ struct bat_priv {
75213 atomic_t orig_interval; /* uint */
75214 atomic_t hop_penalty; /* uint */
75215 atomic_t log_level; /* uint */
75216 - atomic_t bcast_seqno;
75217 + atomic_unchecked_t bcast_seqno;
75218 atomic_t bcast_queue_left;
75219 atomic_t batman_queue_left;
75220 atomic_t ttvn; /* translation table version number */
75221 diff --git a/net/batman-adv/unicast.c b/net/batman-adv/unicast.c
75222 index 74175c2..32f8901 100644
75223 --- a/net/batman-adv/unicast.c
75224 +++ b/net/batman-adv/unicast.c
75225 @@ -264,7 +264,7 @@ int frag_send_skb(struct sk_buff *skb, struct bat_priv *bat_priv,
75226 frag1->flags = UNI_FRAG_HEAD | large_tail;
75227 frag2->flags = large_tail;
75228
75229 - seqno = atomic_add_return(2, &hard_iface->frag_seqno);
75230 + seqno = atomic_add_return_unchecked(2, &hard_iface->frag_seqno);
75231 frag1->seqno = htons(seqno - 1);
75232 frag2->seqno = htons(seqno);
75233
75234 diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
75235 index 4554e80..b778671 100644
75236 --- a/net/bluetooth/l2cap_core.c
75237 +++ b/net/bluetooth/l2cap_core.c
75238 @@ -2798,8 +2798,10 @@ static int l2cap_parse_conf_rsp(struct l2cap_chan *chan, void *rsp, int len, voi
75239 break;
75240
75241 case L2CAP_CONF_RFC:
75242 - if (olen == sizeof(rfc))
75243 - memcpy(&rfc, (void *)val, olen);
75244 + if (olen != sizeof(rfc))
75245 + break;
75246 +
75247 + memcpy(&rfc, (void *)val, olen);
75248
75249 if (test_bit(CONF_STATE2_DEVICE, &chan->conf_state) &&
75250 rfc.mode != chan->mode)
75251 diff --git a/net/bluetooth/rfcomm/tty.c b/net/bluetooth/rfcomm/tty.c
75252 index d1820ff..d414b0e 100644
75253 --- a/net/bluetooth/rfcomm/tty.c
75254 +++ b/net/bluetooth/rfcomm/tty.c
75255 @@ -314,7 +314,7 @@ static void rfcomm_dev_del(struct rfcomm_dev *dev)
75256 BUG_ON(test_and_set_bit(RFCOMM_TTY_RELEASED, &dev->flags));
75257
75258 spin_lock_irqsave(&dev->port.lock, flags);
75259 - if (dev->port.count > 0) {
75260 + if (atomic_read(&dev->port.count) > 0) {
75261 spin_unlock_irqrestore(&dev->port.lock, flags);
75262 return;
75263 }
75264 @@ -669,10 +669,10 @@ static int rfcomm_tty_open(struct tty_struct *tty, struct file *filp)
75265 return -ENODEV;
75266
75267 BT_DBG("dev %p dst %s channel %d opened %d", dev, batostr(&dev->dst),
75268 - dev->channel, dev->port.count);
75269 + dev->channel, atomic_read(&dev->port.count));
75270
75271 spin_lock_irqsave(&dev->port.lock, flags);
75272 - if (++dev->port.count > 1) {
75273 + if (atomic_inc_return(&dev->port.count) > 1) {
75274 spin_unlock_irqrestore(&dev->port.lock, flags);
75275 return 0;
75276 }
75277 @@ -737,10 +737,10 @@ static void rfcomm_tty_close(struct tty_struct *tty, struct file *filp)
75278 return;
75279
75280 BT_DBG("tty %p dev %p dlc %p opened %d", tty, dev, dev->dlc,
75281 - dev->port.count);
75282 + atomic_read(&dev->port.count));
75283
75284 spin_lock_irqsave(&dev->port.lock, flags);
75285 - if (!--dev->port.count) {
75286 + if (!atomic_dec_return(&dev->port.count)) {
75287 spin_unlock_irqrestore(&dev->port.lock, flags);
75288 if (dev->tty_dev->parent)
75289 device_move(dev->tty_dev, NULL, DPM_ORDER_DEV_LAST);
75290 diff --git a/net/bridge/netfilter/ebtables.c b/net/bridge/netfilter/ebtables.c
75291 index 5fe2ff3..10968b5 100644
75292 --- a/net/bridge/netfilter/ebtables.c
75293 +++ b/net/bridge/netfilter/ebtables.c
75294 @@ -1523,7 +1523,7 @@ static int do_ebt_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
75295 tmp.valid_hooks = t->table->valid_hooks;
75296 }
75297 mutex_unlock(&ebt_mutex);
75298 - if (copy_to_user(user, &tmp, *len) != 0){
75299 + if (*len > sizeof(tmp) || copy_to_user(user, &tmp, *len) != 0){
75300 BUGPRINT("c2u Didn't work\n");
75301 ret = -EFAULT;
75302 break;
75303 diff --git a/net/caif/cfctrl.c b/net/caif/cfctrl.c
75304 index 047cd0e..461fd28 100644
75305 --- a/net/caif/cfctrl.c
75306 +++ b/net/caif/cfctrl.c
75307 @@ -10,6 +10,7 @@
75308 #include <linux/spinlock.h>
75309 #include <linux/slab.h>
75310 #include <linux/pkt_sched.h>
75311 +#include <linux/sched.h>
75312 #include <net/caif/caif_layer.h>
75313 #include <net/caif/cfpkt.h>
75314 #include <net/caif/cfctrl.h>
75315 @@ -43,8 +44,8 @@ struct cflayer *cfctrl_create(void)
75316 memset(&dev_info, 0, sizeof(dev_info));
75317 dev_info.id = 0xff;
75318 cfsrvl_init(&this->serv, 0, &dev_info, false);
75319 - atomic_set(&this->req_seq_no, 1);
75320 - atomic_set(&this->rsp_seq_no, 1);
75321 + atomic_set_unchecked(&this->req_seq_no, 1);
75322 + atomic_set_unchecked(&this->rsp_seq_no, 1);
75323 this->serv.layer.receive = cfctrl_recv;
75324 sprintf(this->serv.layer.name, "ctrl");
75325 this->serv.layer.ctrlcmd = cfctrl_ctrlcmd;
75326 @@ -130,8 +131,8 @@ static void cfctrl_insert_req(struct cfctrl *ctrl,
75327 struct cfctrl_request_info *req)
75328 {
75329 spin_lock_bh(&ctrl->info_list_lock);
75330 - atomic_inc(&ctrl->req_seq_no);
75331 - req->sequence_no = atomic_read(&ctrl->req_seq_no);
75332 + atomic_inc_unchecked(&ctrl->req_seq_no);
75333 + req->sequence_no = atomic_read_unchecked(&ctrl->req_seq_no);
75334 list_add_tail(&req->list, &ctrl->list);
75335 spin_unlock_bh(&ctrl->info_list_lock);
75336 }
75337 @@ -149,7 +150,7 @@ static struct cfctrl_request_info *cfctrl_remove_req(struct cfctrl *ctrl,
75338 if (p != first)
75339 pr_warn("Requests are not received in order\n");
75340
75341 - atomic_set(&ctrl->rsp_seq_no,
75342 + atomic_set_unchecked(&ctrl->rsp_seq_no,
75343 p->sequence_no);
75344 list_del(&p->list);
75345 goto out;
75346 diff --git a/net/can/gw.c b/net/can/gw.c
75347 index b41acf2..3affb3a 100644
75348 --- a/net/can/gw.c
75349 +++ b/net/can/gw.c
75350 @@ -96,7 +96,7 @@ struct cf_mod {
75351 struct {
75352 void (*xor)(struct can_frame *cf, struct cgw_csum_xor *xor);
75353 void (*crc8)(struct can_frame *cf, struct cgw_csum_crc8 *crc8);
75354 - } csumfunc;
75355 + } __no_const csumfunc;
75356 };
75357
75358
75359 diff --git a/net/compat.c b/net/compat.c
75360 index 74ed1d7..62f7ea6 100644
75361 --- a/net/compat.c
75362 +++ b/net/compat.c
75363 @@ -71,9 +71,9 @@ int get_compat_msghdr(struct msghdr *kmsg, struct compat_msghdr __user *umsg)
75364 __get_user(kmsg->msg_controllen, &umsg->msg_controllen) ||
75365 __get_user(kmsg->msg_flags, &umsg->msg_flags))
75366 return -EFAULT;
75367 - kmsg->msg_name = compat_ptr(tmp1);
75368 - kmsg->msg_iov = compat_ptr(tmp2);
75369 - kmsg->msg_control = compat_ptr(tmp3);
75370 + kmsg->msg_name = (void __force_kernel *)compat_ptr(tmp1);
75371 + kmsg->msg_iov = (void __force_kernel *)compat_ptr(tmp2);
75372 + kmsg->msg_control = (void __force_kernel *)compat_ptr(tmp3);
75373 return 0;
75374 }
75375
75376 @@ -85,7 +85,7 @@ int verify_compat_iovec(struct msghdr *kern_msg, struct iovec *kern_iov,
75377
75378 if (kern_msg->msg_namelen) {
75379 if (mode == VERIFY_READ) {
75380 - int err = move_addr_to_kernel(kern_msg->msg_name,
75381 + int err = move_addr_to_kernel((void __force_user *)kern_msg->msg_name,
75382 kern_msg->msg_namelen,
75383 kern_address);
75384 if (err < 0)
75385 @@ -96,7 +96,7 @@ int verify_compat_iovec(struct msghdr *kern_msg, struct iovec *kern_iov,
75386 kern_msg->msg_name = NULL;
75387
75388 tot_len = iov_from_user_compat_to_kern(kern_iov,
75389 - (struct compat_iovec __user *)kern_msg->msg_iov,
75390 + (struct compat_iovec __force_user *)kern_msg->msg_iov,
75391 kern_msg->msg_iovlen);
75392 if (tot_len >= 0)
75393 kern_msg->msg_iov = kern_iov;
75394 @@ -116,20 +116,20 @@ int verify_compat_iovec(struct msghdr *kern_msg, struct iovec *kern_iov,
75395
75396 #define CMSG_COMPAT_FIRSTHDR(msg) \
75397 (((msg)->msg_controllen) >= sizeof(struct compat_cmsghdr) ? \
75398 - (struct compat_cmsghdr __user *)((msg)->msg_control) : \
75399 + (struct compat_cmsghdr __force_user *)((msg)->msg_control) : \
75400 (struct compat_cmsghdr __user *)NULL)
75401
75402 #define CMSG_COMPAT_OK(ucmlen, ucmsg, mhdr) \
75403 ((ucmlen) >= sizeof(struct compat_cmsghdr) && \
75404 (ucmlen) <= (unsigned long) \
75405 ((mhdr)->msg_controllen - \
75406 - ((char *)(ucmsg) - (char *)(mhdr)->msg_control)))
75407 + ((char __force_kernel *)(ucmsg) - (char *)(mhdr)->msg_control)))
75408
75409 static inline struct compat_cmsghdr __user *cmsg_compat_nxthdr(struct msghdr *msg,
75410 struct compat_cmsghdr __user *cmsg, int cmsg_len)
75411 {
75412 char __user *ptr = (char __user *)cmsg + CMSG_COMPAT_ALIGN(cmsg_len);
75413 - if ((unsigned long)(ptr + 1 - (char __user *)msg->msg_control) >
75414 + if ((unsigned long)(ptr + 1 - (char __force_user *)msg->msg_control) >
75415 msg->msg_controllen)
75416 return NULL;
75417 return (struct compat_cmsghdr __user *)ptr;
75418 @@ -219,7 +219,7 @@ Efault:
75419
75420 int put_cmsg_compat(struct msghdr *kmsg, int level, int type, int len, void *data)
75421 {
75422 - struct compat_cmsghdr __user *cm = (struct compat_cmsghdr __user *) kmsg->msg_control;
75423 + struct compat_cmsghdr __user *cm = (struct compat_cmsghdr __force_user *) kmsg->msg_control;
75424 struct compat_cmsghdr cmhdr;
75425 struct compat_timeval ctv;
75426 struct compat_timespec cts[3];
75427 @@ -275,7 +275,7 @@ int put_cmsg_compat(struct msghdr *kmsg, int level, int type, int len, void *dat
75428
75429 void scm_detach_fds_compat(struct msghdr *kmsg, struct scm_cookie *scm)
75430 {
75431 - struct compat_cmsghdr __user *cm = (struct compat_cmsghdr __user *) kmsg->msg_control;
75432 + struct compat_cmsghdr __user *cm = (struct compat_cmsghdr __force_user *) kmsg->msg_control;
75433 int fdmax = (kmsg->msg_controllen - sizeof(struct compat_cmsghdr)) / sizeof(int);
75434 int fdnum = scm->fp->count;
75435 struct file **fp = scm->fp->fp;
75436 @@ -364,7 +364,7 @@ static int do_set_sock_timeout(struct socket *sock, int level,
75437 return -EFAULT;
75438 old_fs = get_fs();
75439 set_fs(KERNEL_DS);
75440 - err = sock_setsockopt(sock, level, optname, (char *)&ktime, sizeof(ktime));
75441 + err = sock_setsockopt(sock, level, optname, (char __force_user *)&ktime, sizeof(ktime));
75442 set_fs(old_fs);
75443
75444 return err;
75445 @@ -425,7 +425,7 @@ static int do_get_sock_timeout(struct socket *sock, int level, int optname,
75446 len = sizeof(ktime);
75447 old_fs = get_fs();
75448 set_fs(KERNEL_DS);
75449 - err = sock_getsockopt(sock, level, optname, (char *) &ktime, &len);
75450 + err = sock_getsockopt(sock, level, optname, (char __force_user *) &ktime, (int __force_user *)&len);
75451 set_fs(old_fs);
75452
75453 if (!err) {
75454 @@ -568,7 +568,7 @@ int compat_mc_setsockopt(struct sock *sock, int level, int optname,
75455 case MCAST_JOIN_GROUP:
75456 case MCAST_LEAVE_GROUP:
75457 {
75458 - struct compat_group_req __user *gr32 = (void *)optval;
75459 + struct compat_group_req __user *gr32 = (void __user *)optval;
75460 struct group_req __user *kgr =
75461 compat_alloc_user_space(sizeof(struct group_req));
75462 u32 interface;
75463 @@ -589,7 +589,7 @@ int compat_mc_setsockopt(struct sock *sock, int level, int optname,
75464 case MCAST_BLOCK_SOURCE:
75465 case MCAST_UNBLOCK_SOURCE:
75466 {
75467 - struct compat_group_source_req __user *gsr32 = (void *)optval;
75468 + struct compat_group_source_req __user *gsr32 = (void __user *)optval;
75469 struct group_source_req __user *kgsr = compat_alloc_user_space(
75470 sizeof(struct group_source_req));
75471 u32 interface;
75472 @@ -610,7 +610,7 @@ int compat_mc_setsockopt(struct sock *sock, int level, int optname,
75473 }
75474 case MCAST_MSFILTER:
75475 {
75476 - struct compat_group_filter __user *gf32 = (void *)optval;
75477 + struct compat_group_filter __user *gf32 = (void __user *)optval;
75478 struct group_filter __user *kgf;
75479 u32 interface, fmode, numsrc;
75480
75481 @@ -648,7 +648,7 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
75482 char __user *optval, int __user *optlen,
75483 int (*getsockopt)(struct sock *, int, int, char __user *, int __user *))
75484 {
75485 - struct compat_group_filter __user *gf32 = (void *)optval;
75486 + struct compat_group_filter __user *gf32 = (void __user *)optval;
75487 struct group_filter __user *kgf;
75488 int __user *koptlen;
75489 u32 interface, fmode, numsrc;
75490 diff --git a/net/core/datagram.c b/net/core/datagram.c
75491 index ae6acf6..d5c8f66 100644
75492 --- a/net/core/datagram.c
75493 +++ b/net/core/datagram.c
75494 @@ -290,7 +290,7 @@ int skb_kill_datagram(struct sock *sk, struct sk_buff *skb, unsigned int flags)
75495 }
75496
75497 kfree_skb(skb);
75498 - atomic_inc(&sk->sk_drops);
75499 + atomic_inc_unchecked(&sk->sk_drops);
75500 sk_mem_reclaim_partial(sk);
75501
75502 return err;
75503 diff --git a/net/core/dev.c b/net/core/dev.c
75504 index a000840..566cee1 100644
75505 --- a/net/core/dev.c
75506 +++ b/net/core/dev.c
75507 @@ -1135,9 +1135,13 @@ void dev_load(struct net *net, const char *name)
75508 if (no_module && capable(CAP_NET_ADMIN))
75509 no_module = request_module("netdev-%s", name);
75510 if (no_module && capable(CAP_SYS_MODULE)) {
75511 +#ifdef CONFIG_GRKERNSEC_MODHARDEN
75512 + ___request_module(true, "grsec_modharden_netdev", "%s", name);
75513 +#else
75514 if (!request_module("%s", name))
75515 pr_warn("Loading kernel module for a network device with CAP_SYS_MODULE (deprecated). Use CAP_NET_ADMIN and alias netdev-%s instead.\n",
75516 name);
75517 +#endif
75518 }
75519 }
75520 EXPORT_SYMBOL(dev_load);
75521 @@ -1602,7 +1606,7 @@ int dev_forward_skb(struct net_device *dev, struct sk_buff *skb)
75522 {
75523 if (skb_shinfo(skb)->tx_flags & SKBTX_DEV_ZEROCOPY) {
75524 if (skb_copy_ubufs(skb, GFP_ATOMIC)) {
75525 - atomic_long_inc(&dev->rx_dropped);
75526 + atomic_long_inc_unchecked(&dev->rx_dropped);
75527 kfree_skb(skb);
75528 return NET_RX_DROP;
75529 }
75530 @@ -1612,7 +1616,7 @@ int dev_forward_skb(struct net_device *dev, struct sk_buff *skb)
75531 nf_reset(skb);
75532
75533 if (unlikely(!is_skb_forwardable(dev, skb))) {
75534 - atomic_long_inc(&dev->rx_dropped);
75535 + atomic_long_inc_unchecked(&dev->rx_dropped);
75536 kfree_skb(skb);
75537 return NET_RX_DROP;
75538 }
75539 @@ -2041,7 +2045,7 @@ static int illegal_highdma(struct net_device *dev, struct sk_buff *skb)
75540
75541 struct dev_gso_cb {
75542 void (*destructor)(struct sk_buff *skb);
75543 -};
75544 +} __no_const;
75545
75546 #define DEV_GSO_CB(skb) ((struct dev_gso_cb *)(skb)->cb)
75547
75548 @@ -2876,7 +2880,7 @@ enqueue:
75549
75550 local_irq_restore(flags);
75551
75552 - atomic_long_inc(&skb->dev->rx_dropped);
75553 + atomic_long_inc_unchecked(&skb->dev->rx_dropped);
75554 kfree_skb(skb);
75555 return NET_RX_DROP;
75556 }
75557 @@ -2948,7 +2952,7 @@ int netif_rx_ni(struct sk_buff *skb)
75558 }
75559 EXPORT_SYMBOL(netif_rx_ni);
75560
75561 -static void net_tx_action(struct softirq_action *h)
75562 +static void net_tx_action(void)
75563 {
75564 struct softnet_data *sd = &__get_cpu_var(softnet_data);
75565
75566 @@ -3235,7 +3239,7 @@ ncls:
75567 if (pt_prev) {
75568 ret = pt_prev->func(skb, skb->dev, pt_prev, orig_dev);
75569 } else {
75570 - atomic_long_inc(&skb->dev->rx_dropped);
75571 + atomic_long_inc_unchecked(&skb->dev->rx_dropped);
75572 kfree_skb(skb);
75573 /* Jamal, now you will not able to escape explaining
75574 * me how you were going to use this. :-)
75575 @@ -3800,7 +3804,7 @@ void netif_napi_del(struct napi_struct *napi)
75576 }
75577 EXPORT_SYMBOL(netif_napi_del);
75578
75579 -static void net_rx_action(struct softirq_action *h)
75580 +static void net_rx_action(void)
75581 {
75582 struct softnet_data *sd = &__get_cpu_var(softnet_data);
75583 unsigned long time_limit = jiffies + 2;
75584 @@ -4270,8 +4274,13 @@ static int ptype_seq_show(struct seq_file *seq, void *v)
75585 else
75586 seq_printf(seq, "%04x", ntohs(pt->type));
75587
75588 +#ifdef CONFIG_GRKERNSEC_HIDESYM
75589 + seq_printf(seq, " %-8s %p\n",
75590 + pt->dev ? pt->dev->name : "", NULL);
75591 +#else
75592 seq_printf(seq, " %-8s %pF\n",
75593 pt->dev ? pt->dev->name : "", pt->func);
75594 +#endif
75595 }
75596
75597 return 0;
75598 @@ -5823,7 +5832,7 @@ struct rtnl_link_stats64 *dev_get_stats(struct net_device *dev,
75599 } else {
75600 netdev_stats_to_stats64(storage, &dev->stats);
75601 }
75602 - storage->rx_dropped += atomic_long_read(&dev->rx_dropped);
75603 + storage->rx_dropped += atomic_long_read_unchecked(&dev->rx_dropped);
75604 return storage;
75605 }
75606 EXPORT_SYMBOL(dev_get_stats);
75607 diff --git a/net/core/flow.c b/net/core/flow.c
75608 index e318c7e..168b1d0 100644
75609 --- a/net/core/flow.c
75610 +++ b/net/core/flow.c
75611 @@ -61,7 +61,7 @@ struct flow_cache {
75612 struct timer_list rnd_timer;
75613 };
75614
75615 -atomic_t flow_cache_genid = ATOMIC_INIT(0);
75616 +atomic_unchecked_t flow_cache_genid = ATOMIC_INIT(0);
75617 EXPORT_SYMBOL(flow_cache_genid);
75618 static struct flow_cache flow_cache_global;
75619 static struct kmem_cache *flow_cachep __read_mostly;
75620 @@ -86,7 +86,7 @@ static void flow_cache_new_hashrnd(unsigned long arg)
75621
75622 static int flow_entry_valid(struct flow_cache_entry *fle)
75623 {
75624 - if (atomic_read(&flow_cache_genid) != fle->genid)
75625 + if (atomic_read_unchecked(&flow_cache_genid) != fle->genid)
75626 return 0;
75627 if (fle->object && !fle->object->ops->check(fle->object))
75628 return 0;
75629 @@ -259,7 +259,7 @@ flow_cache_lookup(struct net *net, const struct flowi *key, u16 family, u8 dir,
75630 hlist_add_head(&fle->u.hlist, &fcp->hash_table[hash]);
75631 fcp->hash_count++;
75632 }
75633 - } else if (likely(fle->genid == atomic_read(&flow_cache_genid))) {
75634 + } else if (likely(fle->genid == atomic_read_unchecked(&flow_cache_genid))) {
75635 flo = fle->object;
75636 if (!flo)
75637 goto ret_object;
75638 @@ -280,7 +280,7 @@ nocache:
75639 }
75640 flo = resolver(net, key, family, dir, flo, ctx);
75641 if (fle) {
75642 - fle->genid = atomic_read(&flow_cache_genid);
75643 + fle->genid = atomic_read_unchecked(&flow_cache_genid);
75644 if (!IS_ERR(flo))
75645 fle->object = flo;
75646 else
75647 diff --git a/net/core/iovec.c b/net/core/iovec.c
75648 index 7e7aeb0..2a998cb 100644
75649 --- a/net/core/iovec.c
75650 +++ b/net/core/iovec.c
75651 @@ -42,7 +42,7 @@ int verify_iovec(struct msghdr *m, struct iovec *iov, struct sockaddr_storage *a
75652 if (m->msg_namelen) {
75653 if (mode == VERIFY_READ) {
75654 void __user *namep;
75655 - namep = (void __user __force *) m->msg_name;
75656 + namep = (void __force_user *) m->msg_name;
75657 err = move_addr_to_kernel(namep, m->msg_namelen,
75658 address);
75659 if (err < 0)
75660 @@ -54,7 +54,7 @@ int verify_iovec(struct msghdr *m, struct iovec *iov, struct sockaddr_storage *a
75661 }
75662
75663 size = m->msg_iovlen * sizeof(struct iovec);
75664 - if (copy_from_user(iov, (void __user __force *) m->msg_iov, size))
75665 + if (copy_from_user(iov, (void __force_user *) m->msg_iov, size))
75666 return -EFAULT;
75667
75668 m->msg_iov = iov;
75669 diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
75670 index 6c50ac0..6b4c038 100644
75671 --- a/net/core/rtnetlink.c
75672 +++ b/net/core/rtnetlink.c
75673 @@ -58,7 +58,7 @@ struct rtnl_link {
75674 rtnl_doit_func doit;
75675 rtnl_dumpit_func dumpit;
75676 rtnl_calcit_func calcit;
75677 -};
75678 +} __no_const;
75679
75680 static DEFINE_MUTEX(rtnl_mutex);
75681
75682 diff --git a/net/core/scm.c b/net/core/scm.c
75683 index 611c5ef..88f6d6d 100644
75684 --- a/net/core/scm.c
75685 +++ b/net/core/scm.c
75686 @@ -219,7 +219,7 @@ EXPORT_SYMBOL(__scm_send);
75687 int put_cmsg(struct msghdr * msg, int level, int type, int len, void *data)
75688 {
75689 struct cmsghdr __user *cm
75690 - = (__force struct cmsghdr __user *)msg->msg_control;
75691 + = (struct cmsghdr __force_user *)msg->msg_control;
75692 struct cmsghdr cmhdr;
75693 int cmlen = CMSG_LEN(len);
75694 int err;
75695 @@ -242,7 +242,7 @@ int put_cmsg(struct msghdr * msg, int level, int type, int len, void *data)
75696 err = -EFAULT;
75697 if (copy_to_user(cm, &cmhdr, sizeof cmhdr))
75698 goto out;
75699 - if (copy_to_user(CMSG_DATA(cm), data, cmlen - sizeof(struct cmsghdr)))
75700 + if (copy_to_user((void __force_user *)CMSG_DATA((void __force_kernel *)cm), data, cmlen - sizeof(struct cmsghdr)))
75701 goto out;
75702 cmlen = CMSG_SPACE(len);
75703 if (msg->msg_controllen < cmlen)
75704 @@ -258,7 +258,7 @@ EXPORT_SYMBOL(put_cmsg);
75705 void scm_detach_fds(struct msghdr *msg, struct scm_cookie *scm)
75706 {
75707 struct cmsghdr __user *cm
75708 - = (__force struct cmsghdr __user*)msg->msg_control;
75709 + = (struct cmsghdr __force_user *)msg->msg_control;
75710
75711 int fdmax = 0;
75712 int fdnum = scm->fp->count;
75713 @@ -278,7 +278,7 @@ void scm_detach_fds(struct msghdr *msg, struct scm_cookie *scm)
75714 if (fdnum < fdmax)
75715 fdmax = fdnum;
75716
75717 - for (i=0, cmfptr=(__force int __user *)CMSG_DATA(cm); i<fdmax;
75718 + for (i=0, cmfptr=(int __force_user *)CMSG_DATA((void __force_kernel *)cm); i<fdmax;
75719 i++, cmfptr++)
75720 {
75721 int new_fd;
75722 diff --git a/net/core/sock.c b/net/core/sock.c
75723 index 9e5b71f..66dec30 100644
75724 --- a/net/core/sock.c
75725 +++ b/net/core/sock.c
75726 @@ -344,7 +344,7 @@ int sock_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
75727 struct sk_buff_head *list = &sk->sk_receive_queue;
75728
75729 if (atomic_read(&sk->sk_rmem_alloc) >= sk->sk_rcvbuf) {
75730 - atomic_inc(&sk->sk_drops);
75731 + atomic_inc_unchecked(&sk->sk_drops);
75732 trace_sock_rcvqueue_full(sk, skb);
75733 return -ENOMEM;
75734 }
75735 @@ -354,7 +354,7 @@ int sock_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
75736 return err;
75737
75738 if (!sk_rmem_schedule(sk, skb->truesize)) {
75739 - atomic_inc(&sk->sk_drops);
75740 + atomic_inc_unchecked(&sk->sk_drops);
75741 return -ENOBUFS;
75742 }
75743
75744 @@ -374,7 +374,7 @@ int sock_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
75745 skb_dst_force(skb);
75746
75747 spin_lock_irqsave(&list->lock, flags);
75748 - skb->dropcount = atomic_read(&sk->sk_drops);
75749 + skb->dropcount = atomic_read_unchecked(&sk->sk_drops);
75750 __skb_queue_tail(list, skb);
75751 spin_unlock_irqrestore(&list->lock, flags);
75752
75753 @@ -394,7 +394,7 @@ int sk_receive_skb(struct sock *sk, struct sk_buff *skb, const int nested)
75754 skb->dev = NULL;
75755
75756 if (sk_rcvqueues_full(sk, skb, sk->sk_rcvbuf)) {
75757 - atomic_inc(&sk->sk_drops);
75758 + atomic_inc_unchecked(&sk->sk_drops);
75759 goto discard_and_relse;
75760 }
75761 if (nested)
75762 @@ -412,7 +412,7 @@ int sk_receive_skb(struct sock *sk, struct sk_buff *skb, const int nested)
75763 mutex_release(&sk->sk_lock.dep_map, 1, _RET_IP_);
75764 } else if (sk_add_backlog(sk, skb, sk->sk_rcvbuf)) {
75765 bh_unlock_sock(sk);
75766 - atomic_inc(&sk->sk_drops);
75767 + atomic_inc_unchecked(&sk->sk_drops);
75768 goto discard_and_relse;
75769 }
75770
75771 @@ -976,7 +976,7 @@ int sock_getsockopt(struct socket *sock, int level, int optname,
75772 if (len > sizeof(peercred))
75773 len = sizeof(peercred);
75774 cred_to_ucred(sk->sk_peer_pid, sk->sk_peer_cred, &peercred);
75775 - if (copy_to_user(optval, &peercred, len))
75776 + if (len > sizeof(peercred) || copy_to_user(optval, &peercred, len))
75777 return -EFAULT;
75778 goto lenout;
75779 }
75780 @@ -989,7 +989,7 @@ int sock_getsockopt(struct socket *sock, int level, int optname,
75781 return -ENOTCONN;
75782 if (lv < len)
75783 return -EINVAL;
75784 - if (copy_to_user(optval, address, len))
75785 + if (len > sizeof(address) || copy_to_user(optval, address, len))
75786 return -EFAULT;
75787 goto lenout;
75788 }
75789 @@ -1035,7 +1035,7 @@ int sock_getsockopt(struct socket *sock, int level, int optname,
75790
75791 if (len > lv)
75792 len = lv;
75793 - if (copy_to_user(optval, &v, len))
75794 + if (len > sizeof(v) || copy_to_user(optval, &v, len))
75795 return -EFAULT;
75796 lenout:
75797 if (put_user(len, optlen))
75798 @@ -2124,7 +2124,7 @@ void sock_init_data(struct socket *sock, struct sock *sk)
75799 */
75800 smp_wmb();
75801 atomic_set(&sk->sk_refcnt, 1);
75802 - atomic_set(&sk->sk_drops, 0);
75803 + atomic_set_unchecked(&sk->sk_drops, 0);
75804 }
75805 EXPORT_SYMBOL(sock_init_data);
75806
75807 diff --git a/net/core/sock_diag.c b/net/core/sock_diag.c
75808 index 5fd1467..8b70900 100644
75809 --- a/net/core/sock_diag.c
75810 +++ b/net/core/sock_diag.c
75811 @@ -16,20 +16,27 @@ static DEFINE_MUTEX(sock_diag_table_mutex);
75812
75813 int sock_diag_check_cookie(void *sk, __u32 *cookie)
75814 {
75815 +#ifndef CONFIG_GRKERNSEC_HIDESYM
75816 if ((cookie[0] != INET_DIAG_NOCOOKIE ||
75817 cookie[1] != INET_DIAG_NOCOOKIE) &&
75818 ((u32)(unsigned long)sk != cookie[0] ||
75819 (u32)((((unsigned long)sk) >> 31) >> 1) != cookie[1]))
75820 return -ESTALE;
75821 else
75822 +#endif
75823 return 0;
75824 }
75825 EXPORT_SYMBOL_GPL(sock_diag_check_cookie);
75826
75827 void sock_diag_save_cookie(void *sk, __u32 *cookie)
75828 {
75829 +#ifdef CONFIG_GRKERNSEC_HIDESYM
75830 + cookie[0] = 0;
75831 + cookie[1] = 0;
75832 +#else
75833 cookie[0] = (u32)(unsigned long)sk;
75834 cookie[1] = (u32)(((unsigned long)sk >> 31) >> 1);
75835 +#endif
75836 }
75837 EXPORT_SYMBOL_GPL(sock_diag_save_cookie);
75838
75839 diff --git a/net/decnet/sysctl_net_decnet.c b/net/decnet/sysctl_net_decnet.c
75840 index a55eecc..dd8428c 100644
75841 --- a/net/decnet/sysctl_net_decnet.c
75842 +++ b/net/decnet/sysctl_net_decnet.c
75843 @@ -174,7 +174,7 @@ static int dn_node_address_handler(ctl_table *table, int write,
75844
75845 if (len > *lenp) len = *lenp;
75846
75847 - if (copy_to_user(buffer, addr, len))
75848 + if (len > sizeof addr || copy_to_user(buffer, addr, len))
75849 return -EFAULT;
75850
75851 *lenp = len;
75852 @@ -237,7 +237,7 @@ static int dn_def_dev_handler(ctl_table *table, int write,
75853
75854 if (len > *lenp) len = *lenp;
75855
75856 - if (copy_to_user(buffer, devname, len))
75857 + if (len > sizeof devname || copy_to_user(buffer, devname, len))
75858 return -EFAULT;
75859
75860 *lenp = len;
75861 diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c
75862 index 3854411..2201a94 100644
75863 --- a/net/ipv4/fib_frontend.c
75864 +++ b/net/ipv4/fib_frontend.c
75865 @@ -969,12 +969,12 @@ static int fib_inetaddr_event(struct notifier_block *this, unsigned long event,
75866 #ifdef CONFIG_IP_ROUTE_MULTIPATH
75867 fib_sync_up(dev);
75868 #endif
75869 - atomic_inc(&net->ipv4.dev_addr_genid);
75870 + atomic_inc_unchecked(&net->ipv4.dev_addr_genid);
75871 rt_cache_flush(dev_net(dev), -1);
75872 break;
75873 case NETDEV_DOWN:
75874 fib_del_ifaddr(ifa, NULL);
75875 - atomic_inc(&net->ipv4.dev_addr_genid);
75876 + atomic_inc_unchecked(&net->ipv4.dev_addr_genid);
75877 if (ifa->ifa_dev->ifa_list == NULL) {
75878 /* Last address was deleted from this interface.
75879 * Disable IP.
75880 @@ -1010,7 +1010,7 @@ static int fib_netdev_event(struct notifier_block *this, unsigned long event, vo
75881 #ifdef CONFIG_IP_ROUTE_MULTIPATH
75882 fib_sync_up(dev);
75883 #endif
75884 - atomic_inc(&net->ipv4.dev_addr_genid);
75885 + atomic_inc_unchecked(&net->ipv4.dev_addr_genid);
75886 rt_cache_flush(dev_net(dev), -1);
75887 break;
75888 case NETDEV_DOWN:
75889 diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c
75890 index e5b7182..570a90e 100644
75891 --- a/net/ipv4/fib_semantics.c
75892 +++ b/net/ipv4/fib_semantics.c
75893 @@ -698,7 +698,7 @@ __be32 fib_info_update_nh_saddr(struct net *net, struct fib_nh *nh)
75894 nh->nh_saddr = inet_select_addr(nh->nh_dev,
75895 nh->nh_gw,
75896 nh->nh_parent->fib_scope);
75897 - nh->nh_saddr_genid = atomic_read(&net->ipv4.dev_addr_genid);
75898 + nh->nh_saddr_genid = atomic_read_unchecked(&net->ipv4.dev_addr_genid);
75899
75900 return nh->nh_saddr;
75901 }
75902 diff --git a/net/ipv4/inet_hashtables.c b/net/ipv4/inet_hashtables.c
75903 index 7880af9..70f92a3 100644
75904 --- a/net/ipv4/inet_hashtables.c
75905 +++ b/net/ipv4/inet_hashtables.c
75906 @@ -18,12 +18,15 @@
75907 #include <linux/sched.h>
75908 #include <linux/slab.h>
75909 #include <linux/wait.h>
75910 +#include <linux/security.h>
75911
75912 #include <net/inet_connection_sock.h>
75913 #include <net/inet_hashtables.h>
75914 #include <net/secure_seq.h>
75915 #include <net/ip.h>
75916
75917 +extern void gr_update_task_in_ip_table(struct task_struct *task, const struct inet_sock *inet);
75918 +
75919 /*
75920 * Allocate and initialize a new local port bind bucket.
75921 * The bindhash mutex for snum's hash chain must be held here.
75922 @@ -530,6 +533,8 @@ ok:
75923 twrefcnt += inet_twsk_bind_unhash(tw, hinfo);
75924 spin_unlock(&head->lock);
75925
75926 + gr_update_task_in_ip_table(current, inet_sk(sk));
75927 +
75928 if (tw) {
75929 inet_twsk_deschedule(tw, death_row);
75930 while (twrefcnt) {
75931 diff --git a/net/ipv4/inetpeer.c b/net/ipv4/inetpeer.c
75932 index dfba343..c827d50 100644
75933 --- a/net/ipv4/inetpeer.c
75934 +++ b/net/ipv4/inetpeer.c
75935 @@ -487,8 +487,8 @@ relookup:
75936 if (p) {
75937 p->daddr = *daddr;
75938 atomic_set(&p->refcnt, 1);
75939 - atomic_set(&p->rid, 0);
75940 - atomic_set(&p->ip_id_count,
75941 + atomic_set_unchecked(&p->rid, 0);
75942 + atomic_set_unchecked(&p->ip_id_count,
75943 (daddr->family == AF_INET) ?
75944 secure_ip_id(daddr->addr.a4) :
75945 secure_ipv6_id(daddr->addr.a6));
75946 diff --git a/net/ipv4/ip_fragment.c b/net/ipv4/ip_fragment.c
75947 index 9dbd3dd..0c59fb2 100644
75948 --- a/net/ipv4/ip_fragment.c
75949 +++ b/net/ipv4/ip_fragment.c
75950 @@ -318,7 +318,7 @@ static inline int ip_frag_too_far(struct ipq *qp)
75951 return 0;
75952
75953 start = qp->rid;
75954 - end = atomic_inc_return(&peer->rid);
75955 + end = atomic_inc_return_unchecked(&peer->rid);
75956 qp->rid = end;
75957
75958 rc = qp->q.fragments && (end - start) > max;
75959 diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c
75960 index 0d11f23..2bb3f64 100644
75961 --- a/net/ipv4/ip_sockglue.c
75962 +++ b/net/ipv4/ip_sockglue.c
75963 @@ -1142,7 +1142,8 @@ static int do_ip_getsockopt(struct sock *sk, int level, int optname,
75964 len = min_t(unsigned int, len, opt->optlen);
75965 if (put_user(len, optlen))
75966 return -EFAULT;
75967 - if (copy_to_user(optval, opt->__data, len))
75968 + if ((len > (sizeof(optbuf) - sizeof(struct ip_options))) ||
75969 + copy_to_user(optval, opt->__data, len))
75970 return -EFAULT;
75971 return 0;
75972 }
75973 @@ -1273,7 +1274,7 @@ static int do_ip_getsockopt(struct sock *sk, int level, int optname,
75974 if (sk->sk_type != SOCK_STREAM)
75975 return -ENOPROTOOPT;
75976
75977 - msg.msg_control = optval;
75978 + msg.msg_control = (void __force_kernel *)optval;
75979 msg.msg_controllen = len;
75980 msg.msg_flags = flags;
75981
75982 diff --git a/net/ipv4/ipconfig.c b/net/ipv4/ipconfig.c
75983 index 67e8a6b..386764d 100644
75984 --- a/net/ipv4/ipconfig.c
75985 +++ b/net/ipv4/ipconfig.c
75986 @@ -321,7 +321,7 @@ static int __init ic_devinet_ioctl(unsigned int cmd, struct ifreq *arg)
75987
75988 mm_segment_t oldfs = get_fs();
75989 set_fs(get_ds());
75990 - res = devinet_ioctl(&init_net, cmd, (struct ifreq __user *) arg);
75991 + res = devinet_ioctl(&init_net, cmd, (struct ifreq __force_user *) arg);
75992 set_fs(oldfs);
75993 return res;
75994 }
75995 @@ -332,7 +332,7 @@ static int __init ic_dev_ioctl(unsigned int cmd, struct ifreq *arg)
75996
75997 mm_segment_t oldfs = get_fs();
75998 set_fs(get_ds());
75999 - res = dev_ioctl(&init_net, cmd, (struct ifreq __user *) arg);
76000 + res = dev_ioctl(&init_net, cmd, (struct ifreq __force_user *) arg);
76001 set_fs(oldfs);
76002 return res;
76003 }
76004 @@ -343,7 +343,7 @@ static int __init ic_route_ioctl(unsigned int cmd, struct rtentry *arg)
76005
76006 mm_segment_t oldfs = get_fs();
76007 set_fs(get_ds());
76008 - res = ip_rt_ioctl(&init_net, cmd, (void __user *) arg);
76009 + res = ip_rt_ioctl(&init_net, cmd, (void __force_user *) arg);
76010 set_fs(oldfs);
76011 return res;
76012 }
76013 diff --git a/net/ipv4/ping.c b/net/ipv4/ping.c
76014 index 2c00e8b..45b3bdd 100644
76015 --- a/net/ipv4/ping.c
76016 +++ b/net/ipv4/ping.c
76017 @@ -845,7 +845,7 @@ static void ping_format_sock(struct sock *sp, struct seq_file *f,
76018 sk_rmem_alloc_get(sp),
76019 0, 0L, 0, sock_i_uid(sp), 0, sock_i_ino(sp),
76020 atomic_read(&sp->sk_refcnt), sp,
76021 - atomic_read(&sp->sk_drops), len);
76022 + atomic_read_unchecked(&sp->sk_drops), len);
76023 }
76024
76025 static int ping_seq_show(struct seq_file *seq, void *v)
76026 diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c
76027 index 4032b81..625143c 100644
76028 --- a/net/ipv4/raw.c
76029 +++ b/net/ipv4/raw.c
76030 @@ -304,7 +304,7 @@ static int raw_rcv_skb(struct sock *sk, struct sk_buff *skb)
76031 int raw_rcv(struct sock *sk, struct sk_buff *skb)
76032 {
76033 if (!xfrm4_policy_check(sk, XFRM_POLICY_IN, skb)) {
76034 - atomic_inc(&sk->sk_drops);
76035 + atomic_inc_unchecked(&sk->sk_drops);
76036 kfree_skb(skb);
76037 return NET_RX_DROP;
76038 }
76039 @@ -740,16 +740,20 @@ static int raw_init(struct sock *sk)
76040
76041 static int raw_seticmpfilter(struct sock *sk, char __user *optval, int optlen)
76042 {
76043 + struct icmp_filter filter;
76044 +
76045 if (optlen > sizeof(struct icmp_filter))
76046 optlen = sizeof(struct icmp_filter);
76047 - if (copy_from_user(&raw_sk(sk)->filter, optval, optlen))
76048 + if (copy_from_user(&filter, optval, optlen))
76049 return -EFAULT;
76050 + raw_sk(sk)->filter = filter;
76051 return 0;
76052 }
76053
76054 static int raw_geticmpfilter(struct sock *sk, char __user *optval, int __user *optlen)
76055 {
76056 int len, ret = -EFAULT;
76057 + struct icmp_filter filter;
76058
76059 if (get_user(len, optlen))
76060 goto out;
76061 @@ -759,8 +763,8 @@ static int raw_geticmpfilter(struct sock *sk, char __user *optval, int __user *o
76062 if (len > sizeof(struct icmp_filter))
76063 len = sizeof(struct icmp_filter);
76064 ret = -EFAULT;
76065 - if (put_user(len, optlen) ||
76066 - copy_to_user(optval, &raw_sk(sk)->filter, len))
76067 + filter = raw_sk(sk)->filter;
76068 + if (put_user(len, optlen) || len > sizeof filter || copy_to_user(optval, &filter, len))
76069 goto out;
76070 ret = 0;
76071 out: return ret;
76072 @@ -988,7 +992,13 @@ static void raw_sock_seq_show(struct seq_file *seq, struct sock *sp, int i)
76073 sk_wmem_alloc_get(sp),
76074 sk_rmem_alloc_get(sp),
76075 0, 0L, 0, sock_i_uid(sp), 0, sock_i_ino(sp),
76076 - atomic_read(&sp->sk_refcnt), sp, atomic_read(&sp->sk_drops));
76077 + atomic_read(&sp->sk_refcnt),
76078 +#ifdef CONFIG_GRKERNSEC_HIDESYM
76079 + NULL,
76080 +#else
76081 + sp,
76082 +#endif
76083 + atomic_read_unchecked(&sp->sk_drops));
76084 }
76085
76086 static int raw_seq_show(struct seq_file *seq, void *v)
76087 diff --git a/net/ipv4/route.c b/net/ipv4/route.c
76088 index 98b30d0..cfa3cf7 100644
76089 --- a/net/ipv4/route.c
76090 +++ b/net/ipv4/route.c
76091 @@ -313,7 +313,7 @@ static inline unsigned int rt_hash(__be32 daddr, __be32 saddr, int idx,
76092
76093 static inline int rt_genid(struct net *net)
76094 {
76095 - return atomic_read(&net->ipv4.rt_genid);
76096 + return atomic_read_unchecked(&net->ipv4.rt_genid);
76097 }
76098
76099 #ifdef CONFIG_PROC_FS
76100 @@ -937,7 +937,7 @@ static void rt_cache_invalidate(struct net *net)
76101 unsigned char shuffle;
76102
76103 get_random_bytes(&shuffle, sizeof(shuffle));
76104 - atomic_add(shuffle + 1U, &net->ipv4.rt_genid);
76105 + atomic_add_unchecked(shuffle + 1U, &net->ipv4.rt_genid);
76106 inetpeer_invalidate_tree(AF_INET);
76107 }
76108
76109 @@ -3011,7 +3011,7 @@ static int rt_fill_info(struct net *net,
76110 error = rt->dst.error;
76111 if (peer) {
76112 inet_peer_refcheck(rt->peer);
76113 - id = atomic_read(&peer->ip_id_count) & 0xffff;
76114 + id = atomic_read_unchecked(&peer->ip_id_count) & 0xffff;
76115 if (peer->tcp_ts_stamp) {
76116 ts = peer->tcp_ts;
76117 tsage = get_seconds() - peer->tcp_ts_stamp;
76118 diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
76119 index c8d28c4..e40f75a 100644
76120 --- a/net/ipv4/tcp_ipv4.c
76121 +++ b/net/ipv4/tcp_ipv4.c
76122 @@ -90,6 +90,10 @@ int sysctl_tcp_low_latency __read_mostly;
76123 EXPORT_SYMBOL(sysctl_tcp_low_latency);
76124
76125
76126 +#ifdef CONFIG_GRKERNSEC_BLACKHOLE
76127 +extern int grsec_enable_blackhole;
76128 +#endif
76129 +
76130 #ifdef CONFIG_TCP_MD5SIG
76131 static int tcp_v4_md5_hash_hdr(char *md5_hash, const struct tcp_md5sig_key *key,
76132 __be32 daddr, __be32 saddr, const struct tcphdr *th);
76133 @@ -1656,6 +1660,9 @@ int tcp_v4_do_rcv(struct sock *sk, struct sk_buff *skb)
76134 return 0;
76135
76136 reset:
76137 +#ifdef CONFIG_GRKERNSEC_BLACKHOLE
76138 + if (!grsec_enable_blackhole)
76139 +#endif
76140 tcp_v4_send_reset(rsk, skb);
76141 discard:
76142 kfree_skb(skb);
76143 @@ -1718,12 +1725,19 @@ int tcp_v4_rcv(struct sk_buff *skb)
76144 TCP_SKB_CB(skb)->sacked = 0;
76145
76146 sk = __inet_lookup_skb(&tcp_hashinfo, skb, th->source, th->dest);
76147 - if (!sk)
76148 + if (!sk) {
76149 +#ifdef CONFIG_GRKERNSEC_BLACKHOLE
76150 + ret = 1;
76151 +#endif
76152 goto no_tcp_socket;
76153 -
76154 + }
76155 process:
76156 - if (sk->sk_state == TCP_TIME_WAIT)
76157 + if (sk->sk_state == TCP_TIME_WAIT) {
76158 +#ifdef CONFIG_GRKERNSEC_BLACKHOLE
76159 + ret = 2;
76160 +#endif
76161 goto do_time_wait;
76162 + }
76163
76164 if (unlikely(iph->ttl < inet_sk(sk)->min_ttl)) {
76165 NET_INC_STATS_BH(net, LINUX_MIB_TCPMINTTLDROP);
76166 @@ -1774,6 +1788,10 @@ no_tcp_socket:
76167 bad_packet:
76168 TCP_INC_STATS_BH(net, TCP_MIB_INERRS);
76169 } else {
76170 +#ifdef CONFIG_GRKERNSEC_BLACKHOLE
76171 + if (!grsec_enable_blackhole || (ret == 1 &&
76172 + (skb->dev->flags & IFF_LOOPBACK)))
76173 +#endif
76174 tcp_v4_send_reset(NULL, skb);
76175 }
76176
76177 @@ -2386,7 +2404,11 @@ static void get_openreq4(const struct sock *sk, const struct request_sock *req,
76178 0, /* non standard timer */
76179 0, /* open_requests have no inode */
76180 atomic_read(&sk->sk_refcnt),
76181 +#ifdef CONFIG_GRKERNSEC_HIDESYM
76182 + NULL,
76183 +#else
76184 req,
76185 +#endif
76186 len);
76187 }
76188
76189 @@ -2436,7 +2458,12 @@ static void get_tcp4_sock(struct sock *sk, struct seq_file *f, int i, int *len)
76190 sock_i_uid(sk),
76191 icsk->icsk_probes_out,
76192 sock_i_ino(sk),
76193 - atomic_read(&sk->sk_refcnt), sk,
76194 + atomic_read(&sk->sk_refcnt),
76195 +#ifdef CONFIG_GRKERNSEC_HIDESYM
76196 + NULL,
76197 +#else
76198 + sk,
76199 +#endif
76200 jiffies_to_clock_t(icsk->icsk_rto),
76201 jiffies_to_clock_t(icsk->icsk_ack.ato),
76202 (icsk->icsk_ack.quick << 1) | icsk->icsk_ack.pingpong,
76203 @@ -2464,7 +2491,13 @@ static void get_timewait4_sock(const struct inet_timewait_sock *tw,
76204 " %02X %08X:%08X %02X:%08lX %08X %5d %8d %d %d %pK%n",
76205 i, src, srcp, dest, destp, tw->tw_substate, 0, 0,
76206 3, jiffies_to_clock_t(ttd), 0, 0, 0, 0,
76207 - atomic_read(&tw->tw_refcnt), tw, len);
76208 + atomic_read(&tw->tw_refcnt),
76209 +#ifdef CONFIG_GRKERNSEC_HIDESYM
76210 + NULL,
76211 +#else
76212 + tw,
76213 +#endif
76214 + len);
76215 }
76216
76217 #define TMPSZ 150
76218 diff --git a/net/ipv4/tcp_minisocks.c b/net/ipv4/tcp_minisocks.c
76219 index b85d9fe..4b0eed9 100644
76220 --- a/net/ipv4/tcp_minisocks.c
76221 +++ b/net/ipv4/tcp_minisocks.c
76222 @@ -27,6 +27,10 @@
76223 #include <net/inet_common.h>
76224 #include <net/xfrm.h>
76225
76226 +#ifdef CONFIG_GRKERNSEC_BLACKHOLE
76227 +extern int grsec_enable_blackhole;
76228 +#endif
76229 +
76230 int sysctl_tcp_syncookies __read_mostly = 1;
76231 EXPORT_SYMBOL(sysctl_tcp_syncookies);
76232
76233 @@ -754,6 +758,10 @@ listen_overflow:
76234
76235 embryonic_reset:
76236 NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_EMBRYONICRSTS);
76237 +
76238 +#ifdef CONFIG_GRKERNSEC_BLACKHOLE
76239 + if (!grsec_enable_blackhole)
76240 +#endif
76241 if (!(flg & TCP_FLAG_RST))
76242 req->rsk_ops->send_reset(sk, skb);
76243
76244 diff --git a/net/ipv4/tcp_probe.c b/net/ipv4/tcp_probe.c
76245 index 4526fe6..1a34e43 100644
76246 --- a/net/ipv4/tcp_probe.c
76247 +++ b/net/ipv4/tcp_probe.c
76248 @@ -204,7 +204,7 @@ static ssize_t tcpprobe_read(struct file *file, char __user *buf,
76249 if (cnt + width >= len)
76250 break;
76251
76252 - if (copy_to_user(buf + cnt, tbuf, width))
76253 + if (width > sizeof tbuf || copy_to_user(buf + cnt, tbuf, width))
76254 return -EFAULT;
76255 cnt += width;
76256 }
76257 diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c
76258 index e911e6c..d0a9356 100644
76259 --- a/net/ipv4/tcp_timer.c
76260 +++ b/net/ipv4/tcp_timer.c
76261 @@ -22,6 +22,10 @@
76262 #include <linux/gfp.h>
76263 #include <net/tcp.h>
76264
76265 +#ifdef CONFIG_GRKERNSEC_BLACKHOLE
76266 +extern int grsec_lastack_retries;
76267 +#endif
76268 +
76269 int sysctl_tcp_syn_retries __read_mostly = TCP_SYN_RETRIES;
76270 int sysctl_tcp_synack_retries __read_mostly = TCP_SYNACK_RETRIES;
76271 int sysctl_tcp_keepalive_time __read_mostly = TCP_KEEPALIVE_TIME;
76272 @@ -196,6 +200,13 @@ static int tcp_write_timeout(struct sock *sk)
76273 }
76274 }
76275
76276 +#ifdef CONFIG_GRKERNSEC_BLACKHOLE
76277 + if ((sk->sk_state == TCP_LAST_ACK) &&
76278 + (grsec_lastack_retries > 0) &&
76279 + (grsec_lastack_retries < retry_until))
76280 + retry_until = grsec_lastack_retries;
76281 +#endif
76282 +
76283 if (retransmits_timed_out(sk, retry_until,
76284 syn_set ? 0 : icsk->icsk_user_timeout, syn_set)) {
76285 /* Has it gone just too far? */
76286 diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
76287 index eaca736..60488ae 100644
76288 --- a/net/ipv4/udp.c
76289 +++ b/net/ipv4/udp.c
76290 @@ -87,6 +87,7 @@
76291 #include <linux/types.h>
76292 #include <linux/fcntl.h>
76293 #include <linux/module.h>
76294 +#include <linux/security.h>
76295 #include <linux/socket.h>
76296 #include <linux/sockios.h>
76297 #include <linux/igmp.h>
76298 @@ -110,6 +111,10 @@
76299 #include <linux/static_key.h>
76300 #include "udp_impl.h"
76301
76302 +#ifdef CONFIG_GRKERNSEC_BLACKHOLE
76303 +extern int grsec_enable_blackhole;
76304 +#endif
76305 +
76306 struct udp_table udp_table __read_mostly;
76307 EXPORT_SYMBOL(udp_table);
76308
76309 @@ -568,6 +573,9 @@ found:
76310 return s;
76311 }
76312
76313 +extern int gr_search_udp_recvmsg(struct sock *sk, const struct sk_buff *skb);
76314 +extern int gr_search_udp_sendmsg(struct sock *sk, struct sockaddr_in *addr);
76315 +
76316 /*
76317 * This routine is called by the ICMP module when it gets some
76318 * sort of error condition. If err < 0 then the socket should
76319 @@ -859,9 +867,18 @@ int udp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
76320 dport = usin->sin_port;
76321 if (dport == 0)
76322 return -EINVAL;
76323 +
76324 + err = gr_search_udp_sendmsg(sk, usin);
76325 + if (err)
76326 + return err;
76327 } else {
76328 if (sk->sk_state != TCP_ESTABLISHED)
76329 return -EDESTADDRREQ;
76330 +
76331 + err = gr_search_udp_sendmsg(sk, NULL);
76332 + if (err)
76333 + return err;
76334 +
76335 daddr = inet->inet_daddr;
76336 dport = inet->inet_dport;
76337 /* Open fast path for connected socket.
76338 @@ -1103,7 +1120,7 @@ static unsigned int first_packet_length(struct sock *sk)
76339 udp_lib_checksum_complete(skb)) {
76340 UDP_INC_STATS_BH(sock_net(sk), UDP_MIB_INERRORS,
76341 IS_UDPLITE(sk));
76342 - atomic_inc(&sk->sk_drops);
76343 + atomic_inc_unchecked(&sk->sk_drops);
76344 __skb_unlink(skb, rcvq);
76345 __skb_queue_tail(&list_kill, skb);
76346 }
76347 @@ -1189,6 +1206,10 @@ try_again:
76348 if (!skb)
76349 goto out;
76350
76351 + err = gr_search_udp_recvmsg(sk, skb);
76352 + if (err)
76353 + goto out_free;
76354 +
76355 ulen = skb->len - sizeof(struct udphdr);
76356 copied = len;
76357 if (copied > ulen)
76358 @@ -1498,7 +1519,7 @@ int udp_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
76359
76360 drop:
76361 UDP_INC_STATS_BH(sock_net(sk), UDP_MIB_INERRORS, is_udplite);
76362 - atomic_inc(&sk->sk_drops);
76363 + atomic_inc_unchecked(&sk->sk_drops);
76364 kfree_skb(skb);
76365 return -1;
76366 }
76367 @@ -1517,7 +1538,7 @@ static void flush_stack(struct sock **stack, unsigned int count,
76368 skb1 = (i == final) ? skb : skb_clone(skb, GFP_ATOMIC);
76369
76370 if (!skb1) {
76371 - atomic_inc(&sk->sk_drops);
76372 + atomic_inc_unchecked(&sk->sk_drops);
76373 UDP_INC_STATS_BH(sock_net(sk), UDP_MIB_RCVBUFERRORS,
76374 IS_UDPLITE(sk));
76375 UDP_INC_STATS_BH(sock_net(sk), UDP_MIB_INERRORS,
76376 @@ -1686,6 +1707,9 @@ int __udp4_lib_rcv(struct sk_buff *skb, struct udp_table *udptable,
76377 goto csum_error;
76378
76379 UDP_INC_STATS_BH(net, UDP_MIB_NOPORTS, proto == IPPROTO_UDPLITE);
76380 +#ifdef CONFIG_GRKERNSEC_BLACKHOLE
76381 + if (!grsec_enable_blackhole || (skb->dev->flags & IFF_LOOPBACK))
76382 +#endif
76383 icmp_send(skb, ICMP_DEST_UNREACH, ICMP_PORT_UNREACH, 0);
76384
76385 /*
76386 @@ -2104,8 +2128,13 @@ static void udp4_format_sock(struct sock *sp, struct seq_file *f,
76387 sk_wmem_alloc_get(sp),
76388 sk_rmem_alloc_get(sp),
76389 0, 0L, 0, sock_i_uid(sp), 0, sock_i_ino(sp),
76390 - atomic_read(&sp->sk_refcnt), sp,
76391 - atomic_read(&sp->sk_drops), len);
76392 + atomic_read(&sp->sk_refcnt),
76393 +#ifdef CONFIG_GRKERNSEC_HIDESYM
76394 + NULL,
76395 +#else
76396 + sp,
76397 +#endif
76398 + atomic_read_unchecked(&sp->sk_drops), len);
76399 }
76400
76401 int udp4_seq_show(struct seq_file *seq, void *v)
76402 diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
76403 index 8f6411c..5767579 100644
76404 --- a/net/ipv6/addrconf.c
76405 +++ b/net/ipv6/addrconf.c
76406 @@ -2145,7 +2145,7 @@ int addrconf_set_dstaddr(struct net *net, void __user *arg)
76407 p.iph.ihl = 5;
76408 p.iph.protocol = IPPROTO_IPV6;
76409 p.iph.ttl = 64;
76410 - ifr.ifr_ifru.ifru_data = (__force void __user *)&p;
76411 + ifr.ifr_ifru.ifru_data = (void __force_user *)&p;
76412
76413 if (ops->ndo_do_ioctl) {
76414 mm_segment_t oldfs = get_fs();
76415 diff --git a/net/ipv6/inet6_connection_sock.c b/net/ipv6/inet6_connection_sock.c
76416 index e6cee52..cf47476 100644
76417 --- a/net/ipv6/inet6_connection_sock.c
76418 +++ b/net/ipv6/inet6_connection_sock.c
76419 @@ -178,7 +178,7 @@ void __inet6_csk_dst_store(struct sock *sk, struct dst_entry *dst,
76420 #ifdef CONFIG_XFRM
76421 {
76422 struct rt6_info *rt = (struct rt6_info *)dst;
76423 - rt->rt6i_flow_cache_genid = atomic_read(&flow_cache_genid);
76424 + rt->rt6i_flow_cache_genid = atomic_read_unchecked(&flow_cache_genid);
76425 }
76426 #endif
76427 }
76428 @@ -193,7 +193,7 @@ struct dst_entry *__inet6_csk_dst_check(struct sock *sk, u32 cookie)
76429 #ifdef CONFIG_XFRM
76430 if (dst) {
76431 struct rt6_info *rt = (struct rt6_info *)dst;
76432 - if (rt->rt6i_flow_cache_genid != atomic_read(&flow_cache_genid)) {
76433 + if (rt->rt6i_flow_cache_genid != atomic_read_unchecked(&flow_cache_genid)) {
76434 __sk_dst_reset(sk);
76435 dst = NULL;
76436 }
76437 diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c
76438 index ba6d13d..6899122 100644
76439 --- a/net/ipv6/ipv6_sockglue.c
76440 +++ b/net/ipv6/ipv6_sockglue.c
76441 @@ -989,7 +989,7 @@ static int do_ipv6_getsockopt(struct sock *sk, int level, int optname,
76442 if (sk->sk_type != SOCK_STREAM)
76443 return -ENOPROTOOPT;
76444
76445 - msg.msg_control = optval;
76446 + msg.msg_control = (void __force_kernel *)optval;
76447 msg.msg_controllen = len;
76448 msg.msg_flags = flags;
76449
76450 diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
76451 index 93d6983..8e54c4d 100644
76452 --- a/net/ipv6/raw.c
76453 +++ b/net/ipv6/raw.c
76454 @@ -377,7 +377,7 @@ static inline int rawv6_rcv_skb(struct sock *sk, struct sk_buff *skb)
76455 {
76456 if ((raw6_sk(sk)->checksum || rcu_access_pointer(sk->sk_filter)) &&
76457 skb_checksum_complete(skb)) {
76458 - atomic_inc(&sk->sk_drops);
76459 + atomic_inc_unchecked(&sk->sk_drops);
76460 kfree_skb(skb);
76461 return NET_RX_DROP;
76462 }
76463 @@ -405,7 +405,7 @@ int rawv6_rcv(struct sock *sk, struct sk_buff *skb)
76464 struct raw6_sock *rp = raw6_sk(sk);
76465
76466 if (!xfrm6_policy_check(sk, XFRM_POLICY_IN, skb)) {
76467 - atomic_inc(&sk->sk_drops);
76468 + atomic_inc_unchecked(&sk->sk_drops);
76469 kfree_skb(skb);
76470 return NET_RX_DROP;
76471 }
76472 @@ -429,7 +429,7 @@ int rawv6_rcv(struct sock *sk, struct sk_buff *skb)
76473
76474 if (inet->hdrincl) {
76475 if (skb_checksum_complete(skb)) {
76476 - atomic_inc(&sk->sk_drops);
76477 + atomic_inc_unchecked(&sk->sk_drops);
76478 kfree_skb(skb);
76479 return NET_RX_DROP;
76480 }
76481 @@ -602,7 +602,7 @@ out:
76482 return err;
76483 }
76484
76485 -static int rawv6_send_hdrinc(struct sock *sk, void *from, int length,
76486 +static int rawv6_send_hdrinc(struct sock *sk, void *from, unsigned int length,
76487 struct flowi6 *fl6, struct dst_entry **dstp,
76488 unsigned int flags)
76489 {
76490 @@ -914,12 +914,15 @@ do_confirm:
76491 static int rawv6_seticmpfilter(struct sock *sk, int level, int optname,
76492 char __user *optval, int optlen)
76493 {
76494 + struct icmp6_filter filter;
76495 +
76496 switch (optname) {
76497 case ICMPV6_FILTER:
76498 if (optlen > sizeof(struct icmp6_filter))
76499 optlen = sizeof(struct icmp6_filter);
76500 - if (copy_from_user(&raw6_sk(sk)->filter, optval, optlen))
76501 + if (copy_from_user(&filter, optval, optlen))
76502 return -EFAULT;
76503 + raw6_sk(sk)->filter = filter;
76504 return 0;
76505 default:
76506 return -ENOPROTOOPT;
76507 @@ -932,6 +935,7 @@ static int rawv6_geticmpfilter(struct sock *sk, int level, int optname,
76508 char __user *optval, int __user *optlen)
76509 {
76510 int len;
76511 + struct icmp6_filter filter;
76512
76513 switch (optname) {
76514 case ICMPV6_FILTER:
76515 @@ -943,7 +947,8 @@ static int rawv6_geticmpfilter(struct sock *sk, int level, int optname,
76516 len = sizeof(struct icmp6_filter);
76517 if (put_user(len, optlen))
76518 return -EFAULT;
76519 - if (copy_to_user(optval, &raw6_sk(sk)->filter, len))
76520 + filter = raw6_sk(sk)->filter;
76521 + if (len > sizeof filter || copy_to_user(optval, &filter, len))
76522 return -EFAULT;
76523 return 0;
76524 default:
76525 @@ -1250,7 +1255,13 @@ static void raw6_sock_seq_show(struct seq_file *seq, struct sock *sp, int i)
76526 0, 0L, 0,
76527 sock_i_uid(sp), 0,
76528 sock_i_ino(sp),
76529 - atomic_read(&sp->sk_refcnt), sp, atomic_read(&sp->sk_drops));
76530 + atomic_read(&sp->sk_refcnt),
76531 +#ifdef CONFIG_GRKERNSEC_HIDESYM
76532 + NULL,
76533 +#else
76534 + sp,
76535 +#endif
76536 + atomic_read_unchecked(&sp->sk_drops));
76537 }
76538
76539 static int raw6_seq_show(struct seq_file *seq, void *v)
76540 diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
76541 index 9df64a5..39875da 100644
76542 --- a/net/ipv6/tcp_ipv6.c
76543 +++ b/net/ipv6/tcp_ipv6.c
76544 @@ -94,6 +94,10 @@ static struct tcp_md5sig_key *tcp_v6_md5_do_lookup(struct sock *sk,
76545 }
76546 #endif
76547
76548 +#ifdef CONFIG_GRKERNSEC_BLACKHOLE
76549 +extern int grsec_enable_blackhole;
76550 +#endif
76551 +
76552 static void tcp_v6_hash(struct sock *sk)
76553 {
76554 if (sk->sk_state != TCP_CLOSE) {
76555 @@ -1544,6 +1548,9 @@ static int tcp_v6_do_rcv(struct sock *sk, struct sk_buff *skb)
76556 return 0;
76557
76558 reset:
76559 +#ifdef CONFIG_GRKERNSEC_BLACKHOLE
76560 + if (!grsec_enable_blackhole)
76561 +#endif
76562 tcp_v6_send_reset(sk, skb);
76563 discard:
76564 if (opt_skb)
76565 @@ -1625,12 +1632,20 @@ static int tcp_v6_rcv(struct sk_buff *skb)
76566 TCP_SKB_CB(skb)->sacked = 0;
76567
76568 sk = __inet6_lookup_skb(&tcp_hashinfo, skb, th->source, th->dest);
76569 - if (!sk)
76570 + if (!sk) {
76571 +#ifdef CONFIG_GRKERNSEC_BLACKHOLE
76572 + ret = 1;
76573 +#endif
76574 goto no_tcp_socket;
76575 + }
76576
76577 process:
76578 - if (sk->sk_state == TCP_TIME_WAIT)
76579 + if (sk->sk_state == TCP_TIME_WAIT) {
76580 +#ifdef CONFIG_GRKERNSEC_BLACKHOLE
76581 + ret = 2;
76582 +#endif
76583 goto do_time_wait;
76584 + }
76585
76586 if (hdr->hop_limit < inet6_sk(sk)->min_hopcount) {
76587 NET_INC_STATS_BH(net, LINUX_MIB_TCPMINTTLDROP);
76588 @@ -1679,6 +1694,10 @@ no_tcp_socket:
76589 bad_packet:
76590 TCP_INC_STATS_BH(net, TCP_MIB_INERRS);
76591 } else {
76592 +#ifdef CONFIG_GRKERNSEC_BLACKHOLE
76593 + if (!grsec_enable_blackhole || (ret == 1 &&
76594 + (skb->dev->flags & IFF_LOOPBACK)))
76595 +#endif
76596 tcp_v6_send_reset(NULL, skb);
76597 }
76598
76599 @@ -1885,7 +1904,13 @@ static void get_openreq6(struct seq_file *seq,
76600 uid,
76601 0, /* non standard timer */
76602 0, /* open_requests have no inode */
76603 - 0, req);
76604 + 0,
76605 +#ifdef CONFIG_GRKERNSEC_HIDESYM
76606 + NULL
76607 +#else
76608 + req
76609 +#endif
76610 + );
76611 }
76612
76613 static void get_tcp6_sock(struct seq_file *seq, struct sock *sp, int i)
76614 @@ -1935,7 +1960,12 @@ static void get_tcp6_sock(struct seq_file *seq, struct sock *sp, int i)
76615 sock_i_uid(sp),
76616 icsk->icsk_probes_out,
76617 sock_i_ino(sp),
76618 - atomic_read(&sp->sk_refcnt), sp,
76619 + atomic_read(&sp->sk_refcnt),
76620 +#ifdef CONFIG_GRKERNSEC_HIDESYM
76621 + NULL,
76622 +#else
76623 + sp,
76624 +#endif
76625 jiffies_to_clock_t(icsk->icsk_rto),
76626 jiffies_to_clock_t(icsk->icsk_ack.ato),
76627 (icsk->icsk_ack.quick << 1 ) | icsk->icsk_ack.pingpong,
76628 @@ -1970,7 +2000,13 @@ static void get_timewait6_sock(struct seq_file *seq,
76629 dest->s6_addr32[2], dest->s6_addr32[3], destp,
76630 tw->tw_substate, 0, 0,
76631 3, jiffies_to_clock_t(ttd), 0, 0, 0, 0,
76632 - atomic_read(&tw->tw_refcnt), tw);
76633 + atomic_read(&tw->tw_refcnt),
76634 +#ifdef CONFIG_GRKERNSEC_HIDESYM
76635 + NULL
76636 +#else
76637 + tw
76638 +#endif
76639 + );
76640 }
76641
76642 static int tcp6_seq_show(struct seq_file *seq, void *v)
76643 diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
76644 index f05099f..ea613f0 100644
76645 --- a/net/ipv6/udp.c
76646 +++ b/net/ipv6/udp.c
76647 @@ -50,6 +50,10 @@
76648 #include <linux/seq_file.h>
76649 #include "udp_impl.h"
76650
76651 +#ifdef CONFIG_GRKERNSEC_BLACKHOLE
76652 +extern int grsec_enable_blackhole;
76653 +#endif
76654 +
76655 int ipv6_rcv_saddr_equal(const struct sock *sk, const struct sock *sk2)
76656 {
76657 const struct in6_addr *sk_rcv_saddr6 = &inet6_sk(sk)->rcv_saddr;
76658 @@ -615,7 +619,7 @@ int udpv6_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
76659 return rc;
76660 drop:
76661 UDP6_INC_STATS_BH(sock_net(sk), UDP_MIB_INERRORS, is_udplite);
76662 - atomic_inc(&sk->sk_drops);
76663 + atomic_inc_unchecked(&sk->sk_drops);
76664 kfree_skb(skb);
76665 return -1;
76666 }
76667 @@ -673,7 +677,7 @@ static void flush_stack(struct sock **stack, unsigned int count,
76668 if (likely(skb1 == NULL))
76669 skb1 = (i == final) ? skb : skb_clone(skb, GFP_ATOMIC);
76670 if (!skb1) {
76671 - atomic_inc(&sk->sk_drops);
76672 + atomic_inc_unchecked(&sk->sk_drops);
76673 UDP6_INC_STATS_BH(sock_net(sk), UDP_MIB_RCVBUFERRORS,
76674 IS_UDPLITE(sk));
76675 UDP6_INC_STATS_BH(sock_net(sk), UDP_MIB_INERRORS,
76676 @@ -844,6 +848,9 @@ int __udp6_lib_rcv(struct sk_buff *skb, struct udp_table *udptable,
76677 goto discard;
76678
76679 UDP6_INC_STATS_BH(net, UDP_MIB_NOPORTS, proto == IPPROTO_UDPLITE);
76680 +#ifdef CONFIG_GRKERNSEC_BLACKHOLE
76681 + if (!grsec_enable_blackhole || (skb->dev->flags & IFF_LOOPBACK))
76682 +#endif
76683 icmpv6_send(skb, ICMPV6_DEST_UNREACH, ICMPV6_PORT_UNREACH, 0);
76684
76685 kfree_skb(skb);
76686 @@ -1453,8 +1460,13 @@ static void udp6_sock_seq_show(struct seq_file *seq, struct sock *sp, int bucket
76687 0, 0L, 0,
76688 sock_i_uid(sp), 0,
76689 sock_i_ino(sp),
76690 - atomic_read(&sp->sk_refcnt), sp,
76691 - atomic_read(&sp->sk_drops));
76692 + atomic_read(&sp->sk_refcnt),
76693 +#ifdef CONFIG_GRKERNSEC_HIDESYM
76694 + NULL,
76695 +#else
76696 + sp,
76697 +#endif
76698 + atomic_read_unchecked(&sp->sk_drops));
76699 }
76700
76701 int udp6_seq_show(struct seq_file *seq, void *v)
76702 diff --git a/net/irda/ircomm/ircomm_tty.c b/net/irda/ircomm/ircomm_tty.c
76703 index 6b9d5a0..4dffaf1 100644
76704 --- a/net/irda/ircomm/ircomm_tty.c
76705 +++ b/net/irda/ircomm/ircomm_tty.c
76706 @@ -281,16 +281,16 @@ static int ircomm_tty_block_til_ready(struct ircomm_tty_cb *self,
76707 add_wait_queue(&self->open_wait, &wait);
76708
76709 IRDA_DEBUG(2, "%s(%d):block_til_ready before block on %s open_count=%d\n",
76710 - __FILE__,__LINE__, tty->driver->name, self->open_count );
76711 + __FILE__,__LINE__, tty->driver->name, local_read(&self->open_count) );
76712
76713 /* As far as I can see, we protect open_count - Jean II */
76714 spin_lock_irqsave(&self->spinlock, flags);
76715 if (!tty_hung_up_p(filp)) {
76716 extra_count = 1;
76717 - self->open_count--;
76718 + local_dec(&self->open_count);
76719 }
76720 spin_unlock_irqrestore(&self->spinlock, flags);
76721 - self->blocked_open++;
76722 + local_inc(&self->blocked_open);
76723
76724 while (1) {
76725 if (tty->termios->c_cflag & CBAUD) {
76726 @@ -330,7 +330,7 @@ static int ircomm_tty_block_til_ready(struct ircomm_tty_cb *self,
76727 }
76728
76729 IRDA_DEBUG(1, "%s(%d):block_til_ready blocking on %s open_count=%d\n",
76730 - __FILE__,__LINE__, tty->driver->name, self->open_count );
76731 + __FILE__,__LINE__, tty->driver->name, local_read(&self->open_count) );
76732
76733 schedule();
76734 }
76735 @@ -341,13 +341,13 @@ static int ircomm_tty_block_til_ready(struct ircomm_tty_cb *self,
76736 if (extra_count) {
76737 /* ++ is not atomic, so this should be protected - Jean II */
76738 spin_lock_irqsave(&self->spinlock, flags);
76739 - self->open_count++;
76740 + local_inc(&self->open_count);
76741 spin_unlock_irqrestore(&self->spinlock, flags);
76742 }
76743 - self->blocked_open--;
76744 + local_dec(&self->blocked_open);
76745
76746 IRDA_DEBUG(1, "%s(%d):block_til_ready after blocking on %s open_count=%d\n",
76747 - __FILE__,__LINE__, tty->driver->name, self->open_count);
76748 + __FILE__,__LINE__, tty->driver->name, local_read(&self->open_count));
76749
76750 if (!retval)
76751 self->flags |= ASYNC_NORMAL_ACTIVE;
76752 @@ -412,14 +412,14 @@ static int ircomm_tty_open(struct tty_struct *tty, struct file *filp)
76753 }
76754 /* ++ is not atomic, so this should be protected - Jean II */
76755 spin_lock_irqsave(&self->spinlock, flags);
76756 - self->open_count++;
76757 + local_inc(&self->open_count);
76758
76759 tty->driver_data = self;
76760 self->tty = tty;
76761 spin_unlock_irqrestore(&self->spinlock, flags);
76762
76763 IRDA_DEBUG(1, "%s(), %s%d, count = %d\n", __func__ , tty->driver->name,
76764 - self->line, self->open_count);
76765 + self->line, local_read(&self->open_count));
76766
76767 /* Not really used by us, but lets do it anyway */
76768 self->tty->low_latency = (self->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
76769 @@ -505,7 +505,7 @@ static void ircomm_tty_close(struct tty_struct *tty, struct file *filp)
76770 return;
76771 }
76772
76773 - if ((tty->count == 1) && (self->open_count != 1)) {
76774 + if ((tty->count == 1) && (local_read(&self->open_count) != 1)) {
76775 /*
76776 * Uh, oh. tty->count is 1, which means that the tty
76777 * structure will be freed. state->count should always
76778 @@ -515,16 +515,16 @@ static void ircomm_tty_close(struct tty_struct *tty, struct file *filp)
76779 */
76780 IRDA_DEBUG(0, "%s(), bad serial port count; "
76781 "tty->count is 1, state->count is %d\n", __func__ ,
76782 - self->open_count);
76783 - self->open_count = 1;
76784 + local_read(&self->open_count));
76785 + local_set(&self->open_count, 1);
76786 }
76787
76788 - if (--self->open_count < 0) {
76789 + if (local_dec_return(&self->open_count) < 0) {
76790 IRDA_ERROR("%s(), bad serial port count for ttys%d: %d\n",
76791 - __func__, self->line, self->open_count);
76792 - self->open_count = 0;
76793 + __func__, self->line, local_read(&self->open_count));
76794 + local_set(&self->open_count, 0);
76795 }
76796 - if (self->open_count) {
76797 + if (local_read(&self->open_count)) {
76798 spin_unlock_irqrestore(&self->spinlock, flags);
76799
76800 IRDA_DEBUG(0, "%s(), open count > 0\n", __func__ );
76801 @@ -556,7 +556,7 @@ static void ircomm_tty_close(struct tty_struct *tty, struct file *filp)
76802 tty->closing = 0;
76803 self->tty = NULL;
76804
76805 - if (self->blocked_open) {
76806 + if (local_read(&self->blocked_open)) {
76807 if (self->close_delay)
76808 schedule_timeout_interruptible(self->close_delay);
76809 wake_up_interruptible(&self->open_wait);
76810 @@ -1008,7 +1008,7 @@ static void ircomm_tty_hangup(struct tty_struct *tty)
76811 spin_lock_irqsave(&self->spinlock, flags);
76812 self->flags &= ~ASYNC_NORMAL_ACTIVE;
76813 self->tty = NULL;
76814 - self->open_count = 0;
76815 + local_set(&self->open_count, 0);
76816 spin_unlock_irqrestore(&self->spinlock, flags);
76817
76818 wake_up_interruptible(&self->open_wait);
76819 @@ -1355,7 +1355,7 @@ static void ircomm_tty_line_info(struct ircomm_tty_cb *self, struct seq_file *m)
76820 seq_putc(m, '\n');
76821
76822 seq_printf(m, "Role: %s\n", self->client ? "client" : "server");
76823 - seq_printf(m, "Open count: %d\n", self->open_count);
76824 + seq_printf(m, "Open count: %d\n", local_read(&self->open_count));
76825 seq_printf(m, "Max data size: %d\n", self->max_data_size);
76826 seq_printf(m, "Max header size: %d\n", self->max_header_size);
76827
76828 diff --git a/net/iucv/af_iucv.c b/net/iucv/af_iucv.c
76829 index cd6f7a9..e63fe89 100644
76830 --- a/net/iucv/af_iucv.c
76831 +++ b/net/iucv/af_iucv.c
76832 @@ -782,10 +782,10 @@ static int iucv_sock_autobind(struct sock *sk)
76833
76834 write_lock_bh(&iucv_sk_list.lock);
76835
76836 - sprintf(name, "%08x", atomic_inc_return(&iucv_sk_list.autobind_name));
76837 + sprintf(name, "%08x", atomic_inc_return_unchecked(&iucv_sk_list.autobind_name));
76838 while (__iucv_get_sock_by_name(name)) {
76839 sprintf(name, "%08x",
76840 - atomic_inc_return(&iucv_sk_list.autobind_name));
76841 + atomic_inc_return_unchecked(&iucv_sk_list.autobind_name));
76842 }
76843
76844 write_unlock_bh(&iucv_sk_list.lock);
76845 diff --git a/net/key/af_key.c b/net/key/af_key.c
76846 index 34e4185..8823368 100644
76847 --- a/net/key/af_key.c
76848 +++ b/net/key/af_key.c
76849 @@ -3016,10 +3016,10 @@ static int pfkey_send_policy_notify(struct xfrm_policy *xp, int dir, const struc
76850 static u32 get_acqseq(void)
76851 {
76852 u32 res;
76853 - static atomic_t acqseq;
76854 + static atomic_unchecked_t acqseq;
76855
76856 do {
76857 - res = atomic_inc_return(&acqseq);
76858 + res = atomic_inc_return_unchecked(&acqseq);
76859 } while (!res);
76860 return res;
76861 }
76862 diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
76863 index 3f3cd50..d2cf249 100644
76864 --- a/net/mac80211/ieee80211_i.h
76865 +++ b/net/mac80211/ieee80211_i.h
76866 @@ -28,6 +28,7 @@
76867 #include <net/ieee80211_radiotap.h>
76868 #include <net/cfg80211.h>
76869 #include <net/mac80211.h>
76870 +#include <asm/local.h>
76871 #include "key.h"
76872 #include "sta_info.h"
76873
76874 @@ -863,7 +864,7 @@ struct ieee80211_local {
76875 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
76876 spinlock_t queue_stop_reason_lock;
76877
76878 - int open_count;
76879 + local_t open_count;
76880 int monitors, cooked_mntrs;
76881 /* number of interfaces with corresponding FIF_ flags */
76882 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll,
76883 diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
76884 index 8664111..1d6a065 100644
76885 --- a/net/mac80211/iface.c
76886 +++ b/net/mac80211/iface.c
76887 @@ -328,7 +328,7 @@ static int ieee80211_do_open(struct net_device *dev, bool coming_up)
76888 break;
76889 }
76890
76891 - if (local->open_count == 0) {
76892 + if (local_read(&local->open_count) == 0) {
76893 res = drv_start(local);
76894 if (res)
76895 goto err_del_bss;
76896 @@ -371,7 +371,7 @@ static int ieee80211_do_open(struct net_device *dev, bool coming_up)
76897 break;
76898 }
76899
76900 - if (local->monitors == 0 && local->open_count == 0) {
76901 + if (local->monitors == 0 && local_read(&local->open_count) == 0) {
76902 res = ieee80211_add_virtual_monitor(local);
76903 if (res)
76904 goto err_stop;
76905 @@ -468,7 +468,7 @@ static int ieee80211_do_open(struct net_device *dev, bool coming_up)
76906 mutex_unlock(&local->mtx);
76907
76908 if (coming_up)
76909 - local->open_count++;
76910 + local_inc(&local->open_count);
76911
76912 if (hw_reconf_flags)
76913 ieee80211_hw_config(local, hw_reconf_flags);
76914 @@ -481,7 +481,7 @@ static int ieee80211_do_open(struct net_device *dev, bool coming_up)
76915 err_del_interface:
76916 drv_remove_interface(local, sdata);
76917 err_stop:
76918 - if (!local->open_count)
76919 + if (!local_read(&local->open_count))
76920 drv_stop(local);
76921 err_del_bss:
76922 sdata->bss = NULL;
76923 @@ -613,7 +613,7 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
76924 }
76925
76926 if (going_down)
76927 - local->open_count--;
76928 + local_dec(&local->open_count);
76929
76930 switch (sdata->vif.type) {
76931 case NL80211_IFTYPE_AP_VLAN:
76932 @@ -685,7 +685,7 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
76933
76934 ieee80211_recalc_ps(local, -1);
76935
76936 - if (local->open_count == 0) {
76937 + if (local_read(&local->open_count) == 0) {
76938 if (local->ops->napi_poll)
76939 napi_disable(&local->napi);
76940 ieee80211_clear_tx_pending(local);
76941 @@ -717,7 +717,7 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
76942 }
76943 spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
76944
76945 - if (local->monitors == local->open_count && local->monitors > 0)
76946 + if (local->monitors == local_read(&local->open_count) && local->monitors > 0)
76947 ieee80211_add_virtual_monitor(local);
76948 }
76949
76950 diff --git a/net/mac80211/main.c b/net/mac80211/main.c
76951 index f5548e9..474a15f 100644
76952 --- a/net/mac80211/main.c
76953 +++ b/net/mac80211/main.c
76954 @@ -166,7 +166,7 @@ int ieee80211_hw_config(struct ieee80211_local *local, u32 changed)
76955 local->hw.conf.power_level = power;
76956 }
76957
76958 - if (changed && local->open_count) {
76959 + if (changed && local_read(&local->open_count)) {
76960 ret = drv_config(local, changed);
76961 /*
76962 * Goal:
76963 diff --git a/net/mac80211/pm.c b/net/mac80211/pm.c
76964 index af1c4e2..24dbbe3 100644
76965 --- a/net/mac80211/pm.c
76966 +++ b/net/mac80211/pm.c
76967 @@ -34,7 +34,7 @@ int __ieee80211_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
76968 struct ieee80211_sub_if_data *sdata;
76969 struct sta_info *sta;
76970
76971 - if (!local->open_count)
76972 + if (!local_read(&local->open_count))
76973 goto suspend;
76974
76975 ieee80211_scan_cancel(local);
76976 @@ -72,7 +72,7 @@ int __ieee80211_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
76977 cancel_work_sync(&local->dynamic_ps_enable_work);
76978 del_timer_sync(&local->dynamic_ps_timer);
76979
76980 - local->wowlan = wowlan && local->open_count;
76981 + local->wowlan = wowlan && local_read(&local->open_count);
76982 if (local->wowlan) {
76983 int err = drv_suspend(local, wowlan);
76984 if (err < 0) {
76985 @@ -132,7 +132,7 @@ int __ieee80211_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
76986 drv_remove_interface(local, sdata);
76987
76988 /* stop hardware - this must stop RX */
76989 - if (local->open_count)
76990 + if (local_read(&local->open_count))
76991 ieee80211_stop_device(local);
76992
76993 suspend:
76994 diff --git a/net/mac80211/rate.c b/net/mac80211/rate.c
76995 index 3313c11..bec9f17 100644
76996 --- a/net/mac80211/rate.c
76997 +++ b/net/mac80211/rate.c
76998 @@ -494,7 +494,7 @@ int ieee80211_init_rate_ctrl_alg(struct ieee80211_local *local,
76999
77000 ASSERT_RTNL();
77001
77002 - if (local->open_count)
77003 + if (local_read(&local->open_count))
77004 return -EBUSY;
77005
77006 if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) {
77007 diff --git a/net/mac80211/rc80211_pid_debugfs.c b/net/mac80211/rc80211_pid_debugfs.c
77008 index c97a065..ff61928 100644
77009 --- a/net/mac80211/rc80211_pid_debugfs.c
77010 +++ b/net/mac80211/rc80211_pid_debugfs.c
77011 @@ -193,7 +193,7 @@ static ssize_t rate_control_pid_events_read(struct file *file, char __user *buf,
77012
77013 spin_unlock_irqrestore(&events->lock, status);
77014
77015 - if (copy_to_user(buf, pb, p))
77016 + if (p > sizeof(pb) || copy_to_user(buf, pb, p))
77017 return -EFAULT;
77018
77019 return p;
77020 diff --git a/net/mac80211/util.c b/net/mac80211/util.c
77021 index f564b5e..22fee47 100644
77022 --- a/net/mac80211/util.c
77023 +++ b/net/mac80211/util.c
77024 @@ -1224,7 +1224,7 @@ int ieee80211_reconfig(struct ieee80211_local *local)
77025 }
77026 #endif
77027 /* everything else happens only if HW was up & running */
77028 - if (!local->open_count)
77029 + if (!local_read(&local->open_count))
77030 goto wake_up;
77031
77032 /*
77033 diff --git a/net/netfilter/Kconfig b/net/netfilter/Kconfig
77034 index 209c1ed..39484dc 100644
77035 --- a/net/netfilter/Kconfig
77036 +++ b/net/netfilter/Kconfig
77037 @@ -851,6 +851,16 @@ config NETFILTER_XT_MATCH_ESP
77038
77039 To compile it as a module, choose M here. If unsure, say N.
77040
77041 +config NETFILTER_XT_MATCH_GRADM
77042 + tristate '"gradm" match support'
77043 + depends on NETFILTER_XTABLES && NETFILTER_ADVANCED
77044 + depends on GRKERNSEC && !GRKERNSEC_NO_RBAC
77045 + ---help---
77046 + The gradm match allows to match on grsecurity RBAC being enabled.
77047 + It is useful when iptables rules are applied early on bootup to
77048 + prevent connections to the machine (except from a trusted host)
77049 + while the RBAC system is disabled.
77050 +
77051 config NETFILTER_XT_MATCH_HASHLIMIT
77052 tristate '"hashlimit" match support'
77053 depends on (IP6_NF_IPTABLES || IP6_NF_IPTABLES=n)
77054 diff --git a/net/netfilter/Makefile b/net/netfilter/Makefile
77055 index 4e7960c..89e48d4 100644
77056 --- a/net/netfilter/Makefile
77057 +++ b/net/netfilter/Makefile
77058 @@ -87,6 +87,7 @@ obj-$(CONFIG_NETFILTER_XT_MATCH_DEVGROUP) += xt_devgroup.o
77059 obj-$(CONFIG_NETFILTER_XT_MATCH_DSCP) += xt_dscp.o
77060 obj-$(CONFIG_NETFILTER_XT_MATCH_ECN) += xt_ecn.o
77061 obj-$(CONFIG_NETFILTER_XT_MATCH_ESP) += xt_esp.o
77062 +obj-$(CONFIG_NETFILTER_XT_MATCH_GRADM) += xt_gradm.o
77063 obj-$(CONFIG_NETFILTER_XT_MATCH_HASHLIMIT) += xt_hashlimit.o
77064 obj-$(CONFIG_NETFILTER_XT_MATCH_HELPER) += xt_helper.o
77065 obj-$(CONFIG_NETFILTER_XT_MATCH_HL) += xt_hl.o
77066 diff --git a/net/netfilter/ipvs/ip_vs_conn.c b/net/netfilter/ipvs/ip_vs_conn.c
77067 index 1548df9..98ad9b4 100644
77068 --- a/net/netfilter/ipvs/ip_vs_conn.c
77069 +++ b/net/netfilter/ipvs/ip_vs_conn.c
77070 @@ -557,7 +557,7 @@ ip_vs_bind_dest(struct ip_vs_conn *cp, struct ip_vs_dest *dest)
77071 /* Increase the refcnt counter of the dest */
77072 atomic_inc(&dest->refcnt);
77073
77074 - conn_flags = atomic_read(&dest->conn_flags);
77075 + conn_flags = atomic_read_unchecked(&dest->conn_flags);
77076 if (cp->protocol != IPPROTO_UDP)
77077 conn_flags &= ~IP_VS_CONN_F_ONE_PACKET;
77078 flags = cp->flags;
77079 @@ -902,7 +902,7 @@ ip_vs_conn_new(const struct ip_vs_conn_param *p,
77080 atomic_set(&cp->refcnt, 1);
77081
77082 atomic_set(&cp->n_control, 0);
77083 - atomic_set(&cp->in_pkts, 0);
77084 + atomic_set_unchecked(&cp->in_pkts, 0);
77085
77086 atomic_inc(&ipvs->conn_count);
77087 if (flags & IP_VS_CONN_F_NO_CPORT)
77088 @@ -1183,7 +1183,7 @@ static inline int todrop_entry(struct ip_vs_conn *cp)
77089
77090 /* Don't drop the entry if its number of incoming packets is not
77091 located in [0, 8] */
77092 - i = atomic_read(&cp->in_pkts);
77093 + i = atomic_read_unchecked(&cp->in_pkts);
77094 if (i > 8 || i < 0) return 0;
77095
77096 if (!todrop_rate[i]) return 0;
77097 diff --git a/net/netfilter/ipvs/ip_vs_core.c b/net/netfilter/ipvs/ip_vs_core.c
77098 index a54b018c..07e0120 100644
77099 --- a/net/netfilter/ipvs/ip_vs_core.c
77100 +++ b/net/netfilter/ipvs/ip_vs_core.c
77101 @@ -562,7 +562,7 @@ int ip_vs_leave(struct ip_vs_service *svc, struct sk_buff *skb,
77102 ret = cp->packet_xmit(skb, cp, pd->pp);
77103 /* do not touch skb anymore */
77104
77105 - atomic_inc(&cp->in_pkts);
77106 + atomic_inc_unchecked(&cp->in_pkts);
77107 ip_vs_conn_put(cp);
77108 return ret;
77109 }
77110 @@ -1611,7 +1611,7 @@ ip_vs_in(unsigned int hooknum, struct sk_buff *skb, int af)
77111 if (cp->flags & IP_VS_CONN_F_ONE_PACKET)
77112 pkts = sysctl_sync_threshold(ipvs);
77113 else
77114 - pkts = atomic_add_return(1, &cp->in_pkts);
77115 + pkts = atomic_add_return_unchecked(1, &cp->in_pkts);
77116
77117 if (ipvs->sync_state & IP_VS_STATE_MASTER)
77118 ip_vs_sync_conn(net, cp, pkts);
77119 diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c
77120 index 84444dd..86adaa0 100644
77121 --- a/net/netfilter/ipvs/ip_vs_ctl.c
77122 +++ b/net/netfilter/ipvs/ip_vs_ctl.c
77123 @@ -788,7 +788,7 @@ __ip_vs_update_dest(struct ip_vs_service *svc, struct ip_vs_dest *dest,
77124 ip_vs_rs_hash(ipvs, dest);
77125 write_unlock_bh(&ipvs->rs_lock);
77126 }
77127 - atomic_set(&dest->conn_flags, conn_flags);
77128 + atomic_set_unchecked(&dest->conn_flags, conn_flags);
77129
77130 /* bind the service */
77131 if (!dest->svc) {
77132 @@ -2074,7 +2074,7 @@ static int ip_vs_info_seq_show(struct seq_file *seq, void *v)
77133 " %-7s %-6d %-10d %-10d\n",
77134 &dest->addr.in6,
77135 ntohs(dest->port),
77136 - ip_vs_fwd_name(atomic_read(&dest->conn_flags)),
77137 + ip_vs_fwd_name(atomic_read_unchecked(&dest->conn_flags)),
77138 atomic_read(&dest->weight),
77139 atomic_read(&dest->activeconns),
77140 atomic_read(&dest->inactconns));
77141 @@ -2085,7 +2085,7 @@ static int ip_vs_info_seq_show(struct seq_file *seq, void *v)
77142 "%-7s %-6d %-10d %-10d\n",
77143 ntohl(dest->addr.ip),
77144 ntohs(dest->port),
77145 - ip_vs_fwd_name(atomic_read(&dest->conn_flags)),
77146 + ip_vs_fwd_name(atomic_read_unchecked(&dest->conn_flags)),
77147 atomic_read(&dest->weight),
77148 atomic_read(&dest->activeconns),
77149 atomic_read(&dest->inactconns));
77150 @@ -2555,7 +2555,7 @@ __ip_vs_get_dest_entries(struct net *net, const struct ip_vs_get_dests *get,
77151
77152 entry.addr = dest->addr.ip;
77153 entry.port = dest->port;
77154 - entry.conn_flags = atomic_read(&dest->conn_flags);
77155 + entry.conn_flags = atomic_read_unchecked(&dest->conn_flags);
77156 entry.weight = atomic_read(&dest->weight);
77157 entry.u_threshold = dest->u_threshold;
77158 entry.l_threshold = dest->l_threshold;
77159 @@ -3089,7 +3089,7 @@ static int ip_vs_genl_fill_dest(struct sk_buff *skb, struct ip_vs_dest *dest)
77160 if (nla_put(skb, IPVS_DEST_ATTR_ADDR, sizeof(dest->addr), &dest->addr) ||
77161 nla_put_u16(skb, IPVS_DEST_ATTR_PORT, dest->port) ||
77162 nla_put_u32(skb, IPVS_DEST_ATTR_FWD_METHOD,
77163 - (atomic_read(&dest->conn_flags) &
77164 + (atomic_read_unchecked(&dest->conn_flags) &
77165 IP_VS_CONN_F_FWD_MASK)) ||
77166 nla_put_u32(skb, IPVS_DEST_ATTR_WEIGHT,
77167 atomic_read(&dest->weight)) ||
77168 diff --git a/net/netfilter/ipvs/ip_vs_sync.c b/net/netfilter/ipvs/ip_vs_sync.c
77169 index effa10c..9058928 100644
77170 --- a/net/netfilter/ipvs/ip_vs_sync.c
77171 +++ b/net/netfilter/ipvs/ip_vs_sync.c
77172 @@ -596,7 +596,7 @@ static void ip_vs_sync_conn_v0(struct net *net, struct ip_vs_conn *cp,
77173 cp = cp->control;
77174 if (cp) {
77175 if (cp->flags & IP_VS_CONN_F_TEMPLATE)
77176 - pkts = atomic_add_return(1, &cp->in_pkts);
77177 + pkts = atomic_add_return_unchecked(1, &cp->in_pkts);
77178 else
77179 pkts = sysctl_sync_threshold(ipvs);
77180 ip_vs_sync_conn(net, cp->control, pkts);
77181 @@ -758,7 +758,7 @@ control:
77182 if (!cp)
77183 return;
77184 if (cp->flags & IP_VS_CONN_F_TEMPLATE)
77185 - pkts = atomic_add_return(1, &cp->in_pkts);
77186 + pkts = atomic_add_return_unchecked(1, &cp->in_pkts);
77187 else
77188 pkts = sysctl_sync_threshold(ipvs);
77189 goto sloop;
77190 @@ -885,7 +885,7 @@ static void ip_vs_proc_conn(struct net *net, struct ip_vs_conn_param *param,
77191
77192 if (opt)
77193 memcpy(&cp->in_seq, opt, sizeof(*opt));
77194 - atomic_set(&cp->in_pkts, sysctl_sync_threshold(ipvs));
77195 + atomic_set_unchecked(&cp->in_pkts, sysctl_sync_threshold(ipvs));
77196 cp->state = state;
77197 cp->old_state = cp->state;
77198 /*
77199 diff --git a/net/netfilter/ipvs/ip_vs_xmit.c b/net/netfilter/ipvs/ip_vs_xmit.c
77200 index 7fd66de..e6fb361 100644
77201 --- a/net/netfilter/ipvs/ip_vs_xmit.c
77202 +++ b/net/netfilter/ipvs/ip_vs_xmit.c
77203 @@ -1151,7 +1151,7 @@ ip_vs_icmp_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
77204 else
77205 rc = NF_ACCEPT;
77206 /* do not touch skb anymore */
77207 - atomic_inc(&cp->in_pkts);
77208 + atomic_inc_unchecked(&cp->in_pkts);
77209 goto out;
77210 }
77211
77212 @@ -1272,7 +1272,7 @@ ip_vs_icmp_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp,
77213 else
77214 rc = NF_ACCEPT;
77215 /* do not touch skb anymore */
77216 - atomic_inc(&cp->in_pkts);
77217 + atomic_inc_unchecked(&cp->in_pkts);
77218 goto out;
77219 }
77220
77221 diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c
77222 index ac3af97..c134c21 100644
77223 --- a/net/netfilter/nf_conntrack_core.c
77224 +++ b/net/netfilter/nf_conntrack_core.c
77225 @@ -1530,6 +1530,10 @@ err_proto:
77226 #define UNCONFIRMED_NULLS_VAL ((1<<30)+0)
77227 #define DYING_NULLS_VAL ((1<<30)+1)
77228
77229 +#ifdef CONFIG_GRKERNSEC_HIDESYM
77230 +static atomic_unchecked_t conntrack_cache_id = ATOMIC_INIT(0);
77231 +#endif
77232 +
77233 static int nf_conntrack_init_net(struct net *net)
77234 {
77235 int ret;
77236 @@ -1543,7 +1547,11 @@ static int nf_conntrack_init_net(struct net *net)
77237 goto err_stat;
77238 }
77239
77240 +#ifdef CONFIG_GRKERNSEC_HIDESYM
77241 + net->ct.slabname = kasprintf(GFP_KERNEL, "nf_conntrack_%08lx", atomic_inc_return_unchecked(&conntrack_cache_id));
77242 +#else
77243 net->ct.slabname = kasprintf(GFP_KERNEL, "nf_conntrack_%p", net);
77244 +#endif
77245 if (!net->ct.slabname) {
77246 ret = -ENOMEM;
77247 goto err_slabname;
77248 diff --git a/net/netfilter/nfnetlink_log.c b/net/netfilter/nfnetlink_log.c
77249 index 3c3cfc0..7a6ea1a 100644
77250 --- a/net/netfilter/nfnetlink_log.c
77251 +++ b/net/netfilter/nfnetlink_log.c
77252 @@ -70,7 +70,7 @@ struct nfulnl_instance {
77253 };
77254
77255 static DEFINE_SPINLOCK(instances_lock);
77256 -static atomic_t global_seq;
77257 +static atomic_unchecked_t global_seq;
77258
77259 #define INSTANCE_BUCKETS 16
77260 static struct hlist_head instance_table[INSTANCE_BUCKETS];
77261 @@ -517,7 +517,7 @@ __build_packet_message(struct nfulnl_instance *inst,
77262 /* global sequence number */
77263 if ((inst->flags & NFULNL_CFG_F_SEQ_GLOBAL) &&
77264 nla_put_be32(inst->skb, NFULA_SEQ_GLOBAL,
77265 - htonl(atomic_inc_return(&global_seq))))
77266 + htonl(atomic_inc_return_unchecked(&global_seq))))
77267 goto nla_put_failure;
77268
77269 if (data_len) {
77270 diff --git a/net/netfilter/xt_gradm.c b/net/netfilter/xt_gradm.c
77271 new file mode 100644
77272 index 0000000..6905327
77273 --- /dev/null
77274 +++ b/net/netfilter/xt_gradm.c
77275 @@ -0,0 +1,51 @@
77276 +/*
77277 + * gradm match for netfilter
77278 + * Copyright © Zbigniew Krzystolik, 2010
77279 + *
77280 + * This program is free software; you can redistribute it and/or modify
77281 + * it under the terms of the GNU General Public License; either version
77282 + * 2 or 3 as published by the Free Software Foundation.
77283 + */
77284 +#include <linux/module.h>
77285 +#include <linux/moduleparam.h>
77286 +#include <linux/skbuff.h>
77287 +#include <linux/netfilter/x_tables.h>
77288 +#include <linux/grsecurity.h>
77289 +#include <linux/netfilter/xt_gradm.h>
77290 +
77291 +static bool
77292 +gradm_mt(const struct sk_buff *skb, struct xt_action_param *par)
77293 +{
77294 + const struct xt_gradm_mtinfo *info = par->matchinfo;
77295 + bool retval = false;
77296 + if (gr_acl_is_enabled())
77297 + retval = true;
77298 + return retval ^ info->invflags;
77299 +}
77300 +
77301 +static struct xt_match gradm_mt_reg __read_mostly = {
77302 + .name = "gradm",
77303 + .revision = 0,
77304 + .family = NFPROTO_UNSPEC,
77305 + .match = gradm_mt,
77306 + .matchsize = XT_ALIGN(sizeof(struct xt_gradm_mtinfo)),
77307 + .me = THIS_MODULE,
77308 +};
77309 +
77310 +static int __init gradm_mt_init(void)
77311 +{
77312 + return xt_register_match(&gradm_mt_reg);
77313 +}
77314 +
77315 +static void __exit gradm_mt_exit(void)
77316 +{
77317 + xt_unregister_match(&gradm_mt_reg);
77318 +}
77319 +
77320 +module_init(gradm_mt_init);
77321 +module_exit(gradm_mt_exit);
77322 +MODULE_AUTHOR("Zbigniew Krzystolik <zbyniu@destrukcja.pl>");
77323 +MODULE_DESCRIPTION("Xtables: Grsecurity RBAC match");
77324 +MODULE_LICENSE("GPL");
77325 +MODULE_ALIAS("ipt_gradm");
77326 +MODULE_ALIAS("ip6t_gradm");
77327 diff --git a/net/netfilter/xt_statistic.c b/net/netfilter/xt_statistic.c
77328 index 4fe4fb4..87a89e5 100644
77329 --- a/net/netfilter/xt_statistic.c
77330 +++ b/net/netfilter/xt_statistic.c
77331 @@ -19,7 +19,7 @@
77332 #include <linux/module.h>
77333
77334 struct xt_statistic_priv {
77335 - atomic_t count;
77336 + atomic_unchecked_t count;
77337 } ____cacheline_aligned_in_smp;
77338
77339 MODULE_LICENSE("GPL");
77340 @@ -42,9 +42,9 @@ statistic_mt(const struct sk_buff *skb, struct xt_action_param *par)
77341 break;
77342 case XT_STATISTIC_MODE_NTH:
77343 do {
77344 - oval = atomic_read(&info->master->count);
77345 + oval = atomic_read_unchecked(&info->master->count);
77346 nval = (oval == info->u.nth.every) ? 0 : oval + 1;
77347 - } while (atomic_cmpxchg(&info->master->count, oval, nval) != oval);
77348 + } while (atomic_cmpxchg_unchecked(&info->master->count, oval, nval) != oval);
77349 if (nval == 0)
77350 ret = !ret;
77351 break;
77352 @@ -64,7 +64,7 @@ static int statistic_mt_check(const struct xt_mtchk_param *par)
77353 info->master = kzalloc(sizeof(*info->master), GFP_KERNEL);
77354 if (info->master == NULL)
77355 return -ENOMEM;
77356 - atomic_set(&info->master->count, info->u.nth.count);
77357 + atomic_set_unchecked(&info->master->count, info->u.nth.count);
77358
77359 return 0;
77360 }
77361 diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
77362 index b3025a6..d63a537 100644
77363 --- a/net/netlink/af_netlink.c
77364 +++ b/net/netlink/af_netlink.c
77365 @@ -753,7 +753,7 @@ static void netlink_overrun(struct sock *sk)
77366 sk->sk_error_report(sk);
77367 }
77368 }
77369 - atomic_inc(&sk->sk_drops);
77370 + atomic_inc_unchecked(&sk->sk_drops);
77371 }
77372
77373 static struct sock *netlink_getsockbypid(struct sock *ssk, u32 pid)
77374 @@ -2022,7 +2022,7 @@ static int netlink_seq_show(struct seq_file *seq, void *v)
77375 sk_wmem_alloc_get(s),
77376 nlk->cb,
77377 atomic_read(&s->sk_refcnt),
77378 - atomic_read(&s->sk_drops),
77379 + atomic_read_unchecked(&s->sk_drops),
77380 sock_i_ino(s)
77381 );
77382
77383 diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c
77384 index 06592d8..64860f6 100644
77385 --- a/net/netrom/af_netrom.c
77386 +++ b/net/netrom/af_netrom.c
77387 @@ -838,6 +838,7 @@ static int nr_getname(struct socket *sock, struct sockaddr *uaddr,
77388 struct sock *sk = sock->sk;
77389 struct nr_sock *nr = nr_sk(sk);
77390
77391 + memset(sax, 0, sizeof(*sax));
77392 lock_sock(sk);
77393 if (peer != 0) {
77394 if (sk->sk_state != TCP_ESTABLISHED) {
77395 @@ -852,7 +853,6 @@ static int nr_getname(struct socket *sock, struct sockaddr *uaddr,
77396 *uaddr_len = sizeof(struct full_sockaddr_ax25);
77397 } else {
77398 sax->fsa_ax25.sax25_family = AF_NETROM;
77399 - sax->fsa_ax25.sax25_ndigis = 0;
77400 sax->fsa_ax25.sax25_call = nr->source_addr;
77401 *uaddr_len = sizeof(struct sockaddr_ax25);
77402 }
77403 diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
77404 index 0f66174..e7cb04c 100644
77405 --- a/net/packet/af_packet.c
77406 +++ b/net/packet/af_packet.c
77407 @@ -1687,7 +1687,7 @@ static int packet_rcv(struct sk_buff *skb, struct net_device *dev,
77408
77409 spin_lock(&sk->sk_receive_queue.lock);
77410 po->stats.tp_packets++;
77411 - skb->dropcount = atomic_read(&sk->sk_drops);
77412 + skb->dropcount = atomic_read_unchecked(&sk->sk_drops);
77413 __skb_queue_tail(&sk->sk_receive_queue, skb);
77414 spin_unlock(&sk->sk_receive_queue.lock);
77415 sk->sk_data_ready(sk, skb->len);
77416 @@ -1696,7 +1696,7 @@ static int packet_rcv(struct sk_buff *skb, struct net_device *dev,
77417 drop_n_acct:
77418 spin_lock(&sk->sk_receive_queue.lock);
77419 po->stats.tp_drops++;
77420 - atomic_inc(&sk->sk_drops);
77421 + atomic_inc_unchecked(&sk->sk_drops);
77422 spin_unlock(&sk->sk_receive_queue.lock);
77423
77424 drop_n_restore:
77425 @@ -2641,6 +2641,7 @@ out:
77426
77427 static int packet_recv_error(struct sock *sk, struct msghdr *msg, int len)
77428 {
77429 + struct sock_extended_err ee;
77430 struct sock_exterr_skb *serr;
77431 struct sk_buff *skb, *skb2;
77432 int copied, err;
77433 @@ -2662,8 +2663,9 @@ static int packet_recv_error(struct sock *sk, struct msghdr *msg, int len)
77434 sock_recv_timestamp(msg, sk, skb);
77435
77436 serr = SKB_EXT_ERR(skb);
77437 + ee = serr->ee;
77438 put_cmsg(msg, SOL_PACKET, PACKET_TX_TIMESTAMP,
77439 - sizeof(serr->ee), &serr->ee);
77440 + sizeof ee, &ee);
77441
77442 msg->msg_flags |= MSG_ERRQUEUE;
77443 err = copied;
77444 @@ -3275,7 +3277,7 @@ static int packet_getsockopt(struct socket *sock, int level, int optname,
77445 case PACKET_HDRLEN:
77446 if (len > sizeof(int))
77447 len = sizeof(int);
77448 - if (copy_from_user(&val, optval, len))
77449 + if (len > sizeof(val) || copy_from_user(&val, optval, len))
77450 return -EFAULT;
77451 switch (val) {
77452 case TPACKET_V1:
77453 @@ -3314,7 +3316,7 @@ static int packet_getsockopt(struct socket *sock, int level, int optname,
77454 len = lv;
77455 if (put_user(len, optlen))
77456 return -EFAULT;
77457 - if (copy_to_user(optval, data, len))
77458 + if (len > sizeof(st) || copy_to_user(optval, data, len))
77459 return -EFAULT;
77460 return 0;
77461 }
77462 diff --git a/net/phonet/af_phonet.c b/net/phonet/af_phonet.c
77463 index 5a940db..f0b9c12 100644
77464 --- a/net/phonet/af_phonet.c
77465 +++ b/net/phonet/af_phonet.c
77466 @@ -41,7 +41,7 @@ static struct phonet_protocol *phonet_proto_get(unsigned int protocol)
77467 {
77468 struct phonet_protocol *pp;
77469
77470 - if (protocol >= PHONET_NPROTO)
77471 + if (protocol < 0 || protocol >= PHONET_NPROTO)
77472 return NULL;
77473
77474 rcu_read_lock();
77475 @@ -469,7 +469,7 @@ int __init_or_module phonet_proto_register(unsigned int protocol,
77476 {
77477 int err = 0;
77478
77479 - if (protocol >= PHONET_NPROTO)
77480 + if (protocol < 0 || protocol >= PHONET_NPROTO)
77481 return -EINVAL;
77482
77483 err = proto_register(pp->prot, 1);
77484 diff --git a/net/phonet/pep.c b/net/phonet/pep.c
77485 index 576f22c..bc7a71b 100644
77486 --- a/net/phonet/pep.c
77487 +++ b/net/phonet/pep.c
77488 @@ -388,7 +388,7 @@ static int pipe_do_rcv(struct sock *sk, struct sk_buff *skb)
77489
77490 case PNS_PEP_CTRL_REQ:
77491 if (skb_queue_len(&pn->ctrlreq_queue) >= PNPIPE_CTRLREQ_MAX) {
77492 - atomic_inc(&sk->sk_drops);
77493 + atomic_inc_unchecked(&sk->sk_drops);
77494 break;
77495 }
77496 __skb_pull(skb, 4);
77497 @@ -409,7 +409,7 @@ static int pipe_do_rcv(struct sock *sk, struct sk_buff *skb)
77498 }
77499
77500 if (pn->rx_credits == 0) {
77501 - atomic_inc(&sk->sk_drops);
77502 + atomic_inc_unchecked(&sk->sk_drops);
77503 err = -ENOBUFS;
77504 break;
77505 }
77506 @@ -580,7 +580,7 @@ static int pipe_handler_do_rcv(struct sock *sk, struct sk_buff *skb)
77507 }
77508
77509 if (pn->rx_credits == 0) {
77510 - atomic_inc(&sk->sk_drops);
77511 + atomic_inc_unchecked(&sk->sk_drops);
77512 err = NET_RX_DROP;
77513 break;
77514 }
77515 diff --git a/net/phonet/socket.c b/net/phonet/socket.c
77516 index 0acc943..c727611 100644
77517 --- a/net/phonet/socket.c
77518 +++ b/net/phonet/socket.c
77519 @@ -613,8 +613,13 @@ static int pn_sock_seq_show(struct seq_file *seq, void *v)
77520 pn->resource, sk->sk_state,
77521 sk_wmem_alloc_get(sk), sk_rmem_alloc_get(sk),
77522 sock_i_uid(sk), sock_i_ino(sk),
77523 - atomic_read(&sk->sk_refcnt), sk,
77524 - atomic_read(&sk->sk_drops), &len);
77525 + atomic_read(&sk->sk_refcnt),
77526 +#ifdef CONFIG_GRKERNSEC_HIDESYM
77527 + NULL,
77528 +#else
77529 + sk,
77530 +#endif
77531 + atomic_read_unchecked(&sk->sk_drops), &len);
77532 }
77533 seq_printf(seq, "%*s\n", 127 - len, "");
77534 return 0;
77535 diff --git a/net/rds/cong.c b/net/rds/cong.c
77536 index e5b65ac..f3b6fb7 100644
77537 --- a/net/rds/cong.c
77538 +++ b/net/rds/cong.c
77539 @@ -78,7 +78,7 @@
77540 * finds that the saved generation number is smaller than the global generation
77541 * number, it wakes up the process.
77542 */
77543 -static atomic_t rds_cong_generation = ATOMIC_INIT(0);
77544 +static atomic_unchecked_t rds_cong_generation = ATOMIC_INIT(0);
77545
77546 /*
77547 * Congestion monitoring
77548 @@ -233,7 +233,7 @@ void rds_cong_map_updated(struct rds_cong_map *map, uint64_t portmask)
77549 rdsdebug("waking map %p for %pI4\n",
77550 map, &map->m_addr);
77551 rds_stats_inc(s_cong_update_received);
77552 - atomic_inc(&rds_cong_generation);
77553 + atomic_inc_unchecked(&rds_cong_generation);
77554 if (waitqueue_active(&map->m_waitq))
77555 wake_up(&map->m_waitq);
77556 if (waitqueue_active(&rds_poll_waitq))
77557 @@ -259,7 +259,7 @@ EXPORT_SYMBOL_GPL(rds_cong_map_updated);
77558
77559 int rds_cong_updated_since(unsigned long *recent)
77560 {
77561 - unsigned long gen = atomic_read(&rds_cong_generation);
77562 + unsigned long gen = atomic_read_unchecked(&rds_cong_generation);
77563
77564 if (likely(*recent == gen))
77565 return 0;
77566 diff --git a/net/rds/ib.h b/net/rds/ib.h
77567 index 8d2b3d5..227ec5b 100644
77568 --- a/net/rds/ib.h
77569 +++ b/net/rds/ib.h
77570 @@ -128,7 +128,7 @@ struct rds_ib_connection {
77571 /* sending acks */
77572 unsigned long i_ack_flags;
77573 #ifdef KERNEL_HAS_ATOMIC64
77574 - atomic64_t i_ack_next; /* next ACK to send */
77575 + atomic64_unchecked_t i_ack_next; /* next ACK to send */
77576 #else
77577 spinlock_t i_ack_lock; /* protect i_ack_next */
77578 u64 i_ack_next; /* next ACK to send */
77579 diff --git a/net/rds/ib_cm.c b/net/rds/ib_cm.c
77580 index a1e1162..265e129 100644
77581 --- a/net/rds/ib_cm.c
77582 +++ b/net/rds/ib_cm.c
77583 @@ -718,7 +718,7 @@ void rds_ib_conn_shutdown(struct rds_connection *conn)
77584 /* Clear the ACK state */
77585 clear_bit(IB_ACK_IN_FLIGHT, &ic->i_ack_flags);
77586 #ifdef KERNEL_HAS_ATOMIC64
77587 - atomic64_set(&ic->i_ack_next, 0);
77588 + atomic64_set_unchecked(&ic->i_ack_next, 0);
77589 #else
77590 ic->i_ack_next = 0;
77591 #endif
77592 diff --git a/net/rds/ib_recv.c b/net/rds/ib_recv.c
77593 index 8d19491..05a3e65 100644
77594 --- a/net/rds/ib_recv.c
77595 +++ b/net/rds/ib_recv.c
77596 @@ -592,7 +592,7 @@ static u64 rds_ib_get_ack(struct rds_ib_connection *ic)
77597 static void rds_ib_set_ack(struct rds_ib_connection *ic, u64 seq,
77598 int ack_required)
77599 {
77600 - atomic64_set(&ic->i_ack_next, seq);
77601 + atomic64_set_unchecked(&ic->i_ack_next, seq);
77602 if (ack_required) {
77603 smp_mb__before_clear_bit();
77604 set_bit(IB_ACK_REQUESTED, &ic->i_ack_flags);
77605 @@ -604,7 +604,7 @@ static u64 rds_ib_get_ack(struct rds_ib_connection *ic)
77606 clear_bit(IB_ACK_REQUESTED, &ic->i_ack_flags);
77607 smp_mb__after_clear_bit();
77608
77609 - return atomic64_read(&ic->i_ack_next);
77610 + return atomic64_read_unchecked(&ic->i_ack_next);
77611 }
77612 #endif
77613
77614 diff --git a/net/rds/iw.h b/net/rds/iw.h
77615 index 04ce3b1..48119a6 100644
77616 --- a/net/rds/iw.h
77617 +++ b/net/rds/iw.h
77618 @@ -134,7 +134,7 @@ struct rds_iw_connection {
77619 /* sending acks */
77620 unsigned long i_ack_flags;
77621 #ifdef KERNEL_HAS_ATOMIC64
77622 - atomic64_t i_ack_next; /* next ACK to send */
77623 + atomic64_unchecked_t i_ack_next; /* next ACK to send */
77624 #else
77625 spinlock_t i_ack_lock; /* protect i_ack_next */
77626 u64 i_ack_next; /* next ACK to send */
77627 diff --git a/net/rds/iw_cm.c b/net/rds/iw_cm.c
77628 index a91e1db..cf3053f 100644
77629 --- a/net/rds/iw_cm.c
77630 +++ b/net/rds/iw_cm.c
77631 @@ -663,7 +663,7 @@ void rds_iw_conn_shutdown(struct rds_connection *conn)
77632 /* Clear the ACK state */
77633 clear_bit(IB_ACK_IN_FLIGHT, &ic->i_ack_flags);
77634 #ifdef KERNEL_HAS_ATOMIC64
77635 - atomic64_set(&ic->i_ack_next, 0);
77636 + atomic64_set_unchecked(&ic->i_ack_next, 0);
77637 #else
77638 ic->i_ack_next = 0;
77639 #endif
77640 diff --git a/net/rds/iw_recv.c b/net/rds/iw_recv.c
77641 index 4503335..db566b4 100644
77642 --- a/net/rds/iw_recv.c
77643 +++ b/net/rds/iw_recv.c
77644 @@ -427,7 +427,7 @@ static u64 rds_iw_get_ack(struct rds_iw_connection *ic)
77645 static void rds_iw_set_ack(struct rds_iw_connection *ic, u64 seq,
77646 int ack_required)
77647 {
77648 - atomic64_set(&ic->i_ack_next, seq);
77649 + atomic64_set_unchecked(&ic->i_ack_next, seq);
77650 if (ack_required) {
77651 smp_mb__before_clear_bit();
77652 set_bit(IB_ACK_REQUESTED, &ic->i_ack_flags);
77653 @@ -439,7 +439,7 @@ static u64 rds_iw_get_ack(struct rds_iw_connection *ic)
77654 clear_bit(IB_ACK_REQUESTED, &ic->i_ack_flags);
77655 smp_mb__after_clear_bit();
77656
77657 - return atomic64_read(&ic->i_ack_next);
77658 + return atomic64_read_unchecked(&ic->i_ack_next);
77659 }
77660 #endif
77661
77662 diff --git a/net/rds/recv.c b/net/rds/recv.c
77663 index 5c6e9f1..9f0f17c 100644
77664 --- a/net/rds/recv.c
77665 +++ b/net/rds/recv.c
77666 @@ -410,6 +410,8 @@ int rds_recvmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *msg,
77667
77668 rdsdebug("size %zu flags 0x%x timeo %ld\n", size, msg_flags, timeo);
77669
77670 + msg->msg_namelen = 0;
77671 +
77672 if (msg_flags & MSG_OOB)
77673 goto out;
77674
77675 @@ -485,6 +487,7 @@ int rds_recvmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *msg,
77676 sin->sin_port = inc->i_hdr.h_sport;
77677 sin->sin_addr.s_addr = inc->i_saddr;
77678 memset(sin->sin_zero, 0, sizeof(sin->sin_zero));
77679 + msg->msg_namelen = sizeof(*sin);
77680 }
77681 break;
77682 }
77683 diff --git a/net/rds/tcp.c b/net/rds/tcp.c
77684 index edac9ef..16bcb98 100644
77685 --- a/net/rds/tcp.c
77686 +++ b/net/rds/tcp.c
77687 @@ -59,7 +59,7 @@ void rds_tcp_nonagle(struct socket *sock)
77688 int val = 1;
77689
77690 set_fs(KERNEL_DS);
77691 - sock->ops->setsockopt(sock, SOL_TCP, TCP_NODELAY, (char __user *)&val,
77692 + sock->ops->setsockopt(sock, SOL_TCP, TCP_NODELAY, (char __force_user *)&val,
77693 sizeof(val));
77694 set_fs(oldfs);
77695 }
77696 diff --git a/net/rds/tcp_send.c b/net/rds/tcp_send.c
77697 index 1b4fd68..2234175 100644
77698 --- a/net/rds/tcp_send.c
77699 +++ b/net/rds/tcp_send.c
77700 @@ -43,7 +43,7 @@ static void rds_tcp_cork(struct socket *sock, int val)
77701
77702 oldfs = get_fs();
77703 set_fs(KERNEL_DS);
77704 - sock->ops->setsockopt(sock, SOL_TCP, TCP_CORK, (char __user *)&val,
77705 + sock->ops->setsockopt(sock, SOL_TCP, TCP_CORK, (char __force_user *)&val,
77706 sizeof(val));
77707 set_fs(oldfs);
77708 }
77709 diff --git a/net/rxrpc/af_rxrpc.c b/net/rxrpc/af_rxrpc.c
77710 index 05996d0..5a1dfe0 100644
77711 --- a/net/rxrpc/af_rxrpc.c
77712 +++ b/net/rxrpc/af_rxrpc.c
77713 @@ -39,7 +39,7 @@ static const struct proto_ops rxrpc_rpc_ops;
77714 __be32 rxrpc_epoch;
77715
77716 /* current debugging ID */
77717 -atomic_t rxrpc_debug_id;
77718 +atomic_unchecked_t rxrpc_debug_id;
77719
77720 /* count of skbs currently in use */
77721 atomic_t rxrpc_n_skbs;
77722 diff --git a/net/rxrpc/ar-ack.c b/net/rxrpc/ar-ack.c
77723 index e4d9cbc..b229649 100644
77724 --- a/net/rxrpc/ar-ack.c
77725 +++ b/net/rxrpc/ar-ack.c
77726 @@ -175,7 +175,7 @@ static void rxrpc_resend(struct rxrpc_call *call)
77727
77728 _enter("{%d,%d,%d,%d},",
77729 call->acks_hard, call->acks_unacked,
77730 - atomic_read(&call->sequence),
77731 + atomic_read_unchecked(&call->sequence),
77732 CIRC_CNT(call->acks_head, call->acks_tail, call->acks_winsz));
77733
77734 stop = 0;
77735 @@ -199,7 +199,7 @@ static void rxrpc_resend(struct rxrpc_call *call)
77736
77737 /* each Tx packet has a new serial number */
77738 sp->hdr.serial =
77739 - htonl(atomic_inc_return(&call->conn->serial));
77740 + htonl(atomic_inc_return_unchecked(&call->conn->serial));
77741
77742 hdr = (struct rxrpc_header *) txb->head;
77743 hdr->serial = sp->hdr.serial;
77744 @@ -403,7 +403,7 @@ static void rxrpc_rotate_tx_window(struct rxrpc_call *call, u32 hard)
77745 */
77746 static void rxrpc_clear_tx_window(struct rxrpc_call *call)
77747 {
77748 - rxrpc_rotate_tx_window(call, atomic_read(&call->sequence));
77749 + rxrpc_rotate_tx_window(call, atomic_read_unchecked(&call->sequence));
77750 }
77751
77752 /*
77753 @@ -629,7 +629,7 @@ process_further:
77754
77755 latest = ntohl(sp->hdr.serial);
77756 hard = ntohl(ack.firstPacket);
77757 - tx = atomic_read(&call->sequence);
77758 + tx = atomic_read_unchecked(&call->sequence);
77759
77760 _proto("Rx ACK %%%u { m=%hu f=#%u p=#%u s=%%%u r=%s n=%u }",
77761 latest,
77762 @@ -1161,7 +1161,7 @@ void rxrpc_process_call(struct work_struct *work)
77763 goto maybe_reschedule;
77764
77765 send_ACK_with_skew:
77766 - ack.maxSkew = htons(atomic_read(&call->conn->hi_serial) -
77767 + ack.maxSkew = htons(atomic_read_unchecked(&call->conn->hi_serial) -
77768 ntohl(ack.serial));
77769 send_ACK:
77770 mtu = call->conn->trans->peer->if_mtu;
77771 @@ -1173,7 +1173,7 @@ send_ACK:
77772 ackinfo.rxMTU = htonl(5692);
77773 ackinfo.jumbo_max = htonl(4);
77774
77775 - hdr.serial = htonl(atomic_inc_return(&call->conn->serial));
77776 + hdr.serial = htonl(atomic_inc_return_unchecked(&call->conn->serial));
77777 _proto("Tx ACK %%%u { m=%hu f=#%u p=#%u s=%%%u r=%s n=%u }",
77778 ntohl(hdr.serial),
77779 ntohs(ack.maxSkew),
77780 @@ -1191,7 +1191,7 @@ send_ACK:
77781 send_message:
77782 _debug("send message");
77783
77784 - hdr.serial = htonl(atomic_inc_return(&call->conn->serial));
77785 + hdr.serial = htonl(atomic_inc_return_unchecked(&call->conn->serial));
77786 _proto("Tx %s %%%u", rxrpc_pkts[hdr.type], ntohl(hdr.serial));
77787 send_message_2:
77788
77789 diff --git a/net/rxrpc/ar-call.c b/net/rxrpc/ar-call.c
77790 index a3bbb36..3341fb9 100644
77791 --- a/net/rxrpc/ar-call.c
77792 +++ b/net/rxrpc/ar-call.c
77793 @@ -83,7 +83,7 @@ static struct rxrpc_call *rxrpc_alloc_call(gfp_t gfp)
77794 spin_lock_init(&call->lock);
77795 rwlock_init(&call->state_lock);
77796 atomic_set(&call->usage, 1);
77797 - call->debug_id = atomic_inc_return(&rxrpc_debug_id);
77798 + call->debug_id = atomic_inc_return_unchecked(&rxrpc_debug_id);
77799 call->state = RXRPC_CALL_CLIENT_SEND_REQUEST;
77800
77801 memset(&call->sock_node, 0xed, sizeof(call->sock_node));
77802 diff --git a/net/rxrpc/ar-connection.c b/net/rxrpc/ar-connection.c
77803 index 4106ca9..a338d7a 100644
77804 --- a/net/rxrpc/ar-connection.c
77805 +++ b/net/rxrpc/ar-connection.c
77806 @@ -206,7 +206,7 @@ static struct rxrpc_connection *rxrpc_alloc_connection(gfp_t gfp)
77807 rwlock_init(&conn->lock);
77808 spin_lock_init(&conn->state_lock);
77809 atomic_set(&conn->usage, 1);
77810 - conn->debug_id = atomic_inc_return(&rxrpc_debug_id);
77811 + conn->debug_id = atomic_inc_return_unchecked(&rxrpc_debug_id);
77812 conn->avail_calls = RXRPC_MAXCALLS;
77813 conn->size_align = 4;
77814 conn->header_size = sizeof(struct rxrpc_header);
77815 diff --git a/net/rxrpc/ar-connevent.c b/net/rxrpc/ar-connevent.c
77816 index e7ed43a..6afa140 100644
77817 --- a/net/rxrpc/ar-connevent.c
77818 +++ b/net/rxrpc/ar-connevent.c
77819 @@ -109,7 +109,7 @@ static int rxrpc_abort_connection(struct rxrpc_connection *conn,
77820
77821 len = iov[0].iov_len + iov[1].iov_len;
77822
77823 - hdr.serial = htonl(atomic_inc_return(&conn->serial));
77824 + hdr.serial = htonl(atomic_inc_return_unchecked(&conn->serial));
77825 _proto("Tx CONN ABORT %%%u { %d }", ntohl(hdr.serial), abort_code);
77826
77827 ret = kernel_sendmsg(conn->trans->local->socket, &msg, iov, 2, len);
77828 diff --git a/net/rxrpc/ar-input.c b/net/rxrpc/ar-input.c
77829 index 529572f..c758ca7 100644
77830 --- a/net/rxrpc/ar-input.c
77831 +++ b/net/rxrpc/ar-input.c
77832 @@ -340,9 +340,9 @@ void rxrpc_fast_process_packet(struct rxrpc_call *call, struct sk_buff *skb)
77833 /* track the latest serial number on this connection for ACK packet
77834 * information */
77835 serial = ntohl(sp->hdr.serial);
77836 - hi_serial = atomic_read(&call->conn->hi_serial);
77837 + hi_serial = atomic_read_unchecked(&call->conn->hi_serial);
77838 while (serial > hi_serial)
77839 - hi_serial = atomic_cmpxchg(&call->conn->hi_serial, hi_serial,
77840 + hi_serial = atomic_cmpxchg_unchecked(&call->conn->hi_serial, hi_serial,
77841 serial);
77842
77843 /* request ACK generation for any ACK or DATA packet that requests
77844 diff --git a/net/rxrpc/ar-internal.h b/net/rxrpc/ar-internal.h
77845 index a693aca..81e7293 100644
77846 --- a/net/rxrpc/ar-internal.h
77847 +++ b/net/rxrpc/ar-internal.h
77848 @@ -272,8 +272,8 @@ struct rxrpc_connection {
77849 int error; /* error code for local abort */
77850 int debug_id; /* debug ID for printks */
77851 unsigned int call_counter; /* call ID counter */
77852 - atomic_t serial; /* packet serial number counter */
77853 - atomic_t hi_serial; /* highest serial number received */
77854 + atomic_unchecked_t serial; /* packet serial number counter */
77855 + atomic_unchecked_t hi_serial; /* highest serial number received */
77856 u8 avail_calls; /* number of calls available */
77857 u8 size_align; /* data size alignment (for security) */
77858 u8 header_size; /* rxrpc + security header size */
77859 @@ -346,7 +346,7 @@ struct rxrpc_call {
77860 spinlock_t lock;
77861 rwlock_t state_lock; /* lock for state transition */
77862 atomic_t usage;
77863 - atomic_t sequence; /* Tx data packet sequence counter */
77864 + atomic_unchecked_t sequence; /* Tx data packet sequence counter */
77865 u32 abort_code; /* local/remote abort code */
77866 enum { /* current state of call */
77867 RXRPC_CALL_CLIENT_SEND_REQUEST, /* - client sending request phase */
77868 @@ -420,7 +420,7 @@ static inline void rxrpc_abort_call(struct rxrpc_call *call, u32 abort_code)
77869 */
77870 extern atomic_t rxrpc_n_skbs;
77871 extern __be32 rxrpc_epoch;
77872 -extern atomic_t rxrpc_debug_id;
77873 +extern atomic_unchecked_t rxrpc_debug_id;
77874 extern struct workqueue_struct *rxrpc_workqueue;
77875
77876 /*
77877 diff --git a/net/rxrpc/ar-local.c b/net/rxrpc/ar-local.c
77878 index 87f7135..74d3703 100644
77879 --- a/net/rxrpc/ar-local.c
77880 +++ b/net/rxrpc/ar-local.c
77881 @@ -45,7 +45,7 @@ struct rxrpc_local *rxrpc_alloc_local(struct sockaddr_rxrpc *srx)
77882 spin_lock_init(&local->lock);
77883 rwlock_init(&local->services_lock);
77884 atomic_set(&local->usage, 1);
77885 - local->debug_id = atomic_inc_return(&rxrpc_debug_id);
77886 + local->debug_id = atomic_inc_return_unchecked(&rxrpc_debug_id);
77887 memcpy(&local->srx, srx, sizeof(*srx));
77888 }
77889
77890 diff --git a/net/rxrpc/ar-output.c b/net/rxrpc/ar-output.c
77891 index 16ae887..d24f12b 100644
77892 --- a/net/rxrpc/ar-output.c
77893 +++ b/net/rxrpc/ar-output.c
77894 @@ -682,9 +682,9 @@ static int rxrpc_send_data(struct kiocb *iocb,
77895 sp->hdr.cid = call->cid;
77896 sp->hdr.callNumber = call->call_id;
77897 sp->hdr.seq =
77898 - htonl(atomic_inc_return(&call->sequence));
77899 + htonl(atomic_inc_return_unchecked(&call->sequence));
77900 sp->hdr.serial =
77901 - htonl(atomic_inc_return(&conn->serial));
77902 + htonl(atomic_inc_return_unchecked(&conn->serial));
77903 sp->hdr.type = RXRPC_PACKET_TYPE_DATA;
77904 sp->hdr.userStatus = 0;
77905 sp->hdr.securityIndex = conn->security_ix;
77906 diff --git a/net/rxrpc/ar-peer.c b/net/rxrpc/ar-peer.c
77907 index bebaa43..2644591 100644
77908 --- a/net/rxrpc/ar-peer.c
77909 +++ b/net/rxrpc/ar-peer.c
77910 @@ -72,7 +72,7 @@ static struct rxrpc_peer *rxrpc_alloc_peer(struct sockaddr_rxrpc *srx,
77911 INIT_LIST_HEAD(&peer->error_targets);
77912 spin_lock_init(&peer->lock);
77913 atomic_set(&peer->usage, 1);
77914 - peer->debug_id = atomic_inc_return(&rxrpc_debug_id);
77915 + peer->debug_id = atomic_inc_return_unchecked(&rxrpc_debug_id);
77916 memcpy(&peer->srx, srx, sizeof(*srx));
77917
77918 rxrpc_assess_MTU_size(peer);
77919 diff --git a/net/rxrpc/ar-proc.c b/net/rxrpc/ar-proc.c
77920 index 38047f7..9f48511 100644
77921 --- a/net/rxrpc/ar-proc.c
77922 +++ b/net/rxrpc/ar-proc.c
77923 @@ -164,8 +164,8 @@ static int rxrpc_connection_seq_show(struct seq_file *seq, void *v)
77924 atomic_read(&conn->usage),
77925 rxrpc_conn_states[conn->state],
77926 key_serial(conn->key),
77927 - atomic_read(&conn->serial),
77928 - atomic_read(&conn->hi_serial));
77929 + atomic_read_unchecked(&conn->serial),
77930 + atomic_read_unchecked(&conn->hi_serial));
77931
77932 return 0;
77933 }
77934 diff --git a/net/rxrpc/ar-transport.c b/net/rxrpc/ar-transport.c
77935 index 92df566..87ec1bf 100644
77936 --- a/net/rxrpc/ar-transport.c
77937 +++ b/net/rxrpc/ar-transport.c
77938 @@ -47,7 +47,7 @@ static struct rxrpc_transport *rxrpc_alloc_transport(struct rxrpc_local *local,
77939 spin_lock_init(&trans->client_lock);
77940 rwlock_init(&trans->conn_lock);
77941 atomic_set(&trans->usage, 1);
77942 - trans->debug_id = atomic_inc_return(&rxrpc_debug_id);
77943 + trans->debug_id = atomic_inc_return_unchecked(&rxrpc_debug_id);
77944
77945 if (peer->srx.transport.family == AF_INET) {
77946 switch (peer->srx.transport_type) {
77947 diff --git a/net/rxrpc/rxkad.c b/net/rxrpc/rxkad.c
77948 index f226709..0e735a8 100644
77949 --- a/net/rxrpc/rxkad.c
77950 +++ b/net/rxrpc/rxkad.c
77951 @@ -610,7 +610,7 @@ static int rxkad_issue_challenge(struct rxrpc_connection *conn)
77952
77953 len = iov[0].iov_len + iov[1].iov_len;
77954
77955 - hdr.serial = htonl(atomic_inc_return(&conn->serial));
77956 + hdr.serial = htonl(atomic_inc_return_unchecked(&conn->serial));
77957 _proto("Tx CHALLENGE %%%u", ntohl(hdr.serial));
77958
77959 ret = kernel_sendmsg(conn->trans->local->socket, &msg, iov, 2, len);
77960 @@ -660,7 +660,7 @@ static int rxkad_send_response(struct rxrpc_connection *conn,
77961
77962 len = iov[0].iov_len + iov[1].iov_len + iov[2].iov_len;
77963
77964 - hdr->serial = htonl(atomic_inc_return(&conn->serial));
77965 + hdr->serial = htonl(atomic_inc_return_unchecked(&conn->serial));
77966 _proto("Tx RESPONSE %%%u", ntohl(hdr->serial));
77967
77968 ret = kernel_sendmsg(conn->trans->local->socket, &msg, iov, 3, len);
77969 diff --git a/net/sctp/proc.c b/net/sctp/proc.c
77970 index 1e2eee8..ce3967e 100644
77971 --- a/net/sctp/proc.c
77972 +++ b/net/sctp/proc.c
77973 @@ -319,7 +319,8 @@ static int sctp_assocs_seq_show(struct seq_file *seq, void *v)
77974 seq_printf(seq,
77975 "%8pK %8pK %-3d %-3d %-2d %-4d "
77976 "%4d %8d %8d %7d %5lu %-5d %5d ",
77977 - assoc, sk, sctp_sk(sk)->type, sk->sk_state,
77978 + assoc, sk,
77979 + sctp_sk(sk)->type, sk->sk_state,
77980 assoc->state, hash,
77981 assoc->assoc_id,
77982 assoc->sndbuf_used,
77983 diff --git a/net/sctp/socket.c b/net/sctp/socket.c
77984 index 31c7bfc..bc380ae 100644
77985 --- a/net/sctp/socket.c
77986 +++ b/net/sctp/socket.c
77987 @@ -4577,7 +4577,7 @@ static int sctp_getsockopt_peer_addrs(struct sock *sk, int len,
77988 addrlen = sctp_get_af_specific(temp.sa.sa_family)->sockaddr_len;
77989 if (space_left < addrlen)
77990 return -ENOMEM;
77991 - if (copy_to_user(to, &temp, addrlen))
77992 + if (addrlen > sizeof(temp) || copy_to_user(to, &temp, addrlen))
77993 return -EFAULT;
77994 to += addrlen;
77995 cnt++;
77996 diff --git a/net/socket.c b/net/socket.c
77997 index 0452dca..7e9758c 100644
77998 --- a/net/socket.c
77999 +++ b/net/socket.c
78000 @@ -88,6 +88,7 @@
78001 #include <linux/nsproxy.h>
78002 #include <linux/magic.h>
78003 #include <linux/slab.h>
78004 +#include <linux/in.h>
78005
78006 #include <asm/uaccess.h>
78007 #include <asm/unistd.h>
78008 @@ -105,6 +106,8 @@
78009 #include <linux/sockios.h>
78010 #include <linux/atalk.h>
78011
78012 +#include <linux/grsock.h>
78013 +
78014 static int sock_no_open(struct inode *irrelevant, struct file *dontcare);
78015 static ssize_t sock_aio_read(struct kiocb *iocb, const struct iovec *iov,
78016 unsigned long nr_segs, loff_t pos);
78017 @@ -321,7 +324,7 @@ static struct dentry *sockfs_mount(struct file_system_type *fs_type,
78018 &sockfs_dentry_operations, SOCKFS_MAGIC);
78019 }
78020
78021 -static struct vfsmount *sock_mnt __read_mostly;
78022 +struct vfsmount *sock_mnt __read_mostly;
78023
78024 static struct file_system_type sock_fs_type = {
78025 .name = "sockfs",
78026 @@ -1210,6 +1213,8 @@ int __sock_create(struct net *net, int family, int type, int protocol,
78027 return -EAFNOSUPPORT;
78028 if (type < 0 || type >= SOCK_MAX)
78029 return -EINVAL;
78030 + if (protocol < 0)
78031 + return -EINVAL;
78032
78033 /* Compatibility.
78034
78035 @@ -1341,6 +1346,16 @@ SYSCALL_DEFINE3(socket, int, family, int, type, int, protocol)
78036 if (SOCK_NONBLOCK != O_NONBLOCK && (flags & SOCK_NONBLOCK))
78037 flags = (flags & ~SOCK_NONBLOCK) | O_NONBLOCK;
78038
78039 + if(!gr_search_socket(family, type, protocol)) {
78040 + retval = -EACCES;
78041 + goto out;
78042 + }
78043 +
78044 + if (gr_handle_sock_all(family, type, protocol)) {
78045 + retval = -EACCES;
78046 + goto out;
78047 + }
78048 +
78049 retval = sock_create(family, type, protocol, &sock);
78050 if (retval < 0)
78051 goto out;
78052 @@ -1453,6 +1468,14 @@ SYSCALL_DEFINE3(bind, int, fd, struct sockaddr __user *, umyaddr, int, addrlen)
78053 if (sock) {
78054 err = move_addr_to_kernel(umyaddr, addrlen, &address);
78055 if (err >= 0) {
78056 + if (gr_handle_sock_server((struct sockaddr *)&address)) {
78057 + err = -EACCES;
78058 + goto error;
78059 + }
78060 + err = gr_search_bind(sock, (struct sockaddr_in *)&address);
78061 + if (err)
78062 + goto error;
78063 +
78064 err = security_socket_bind(sock,
78065 (struct sockaddr *)&address,
78066 addrlen);
78067 @@ -1461,6 +1484,7 @@ SYSCALL_DEFINE3(bind, int, fd, struct sockaddr __user *, umyaddr, int, addrlen)
78068 (struct sockaddr *)
78069 &address, addrlen);
78070 }
78071 +error:
78072 fput_light(sock->file, fput_needed);
78073 }
78074 return err;
78075 @@ -1484,10 +1508,20 @@ SYSCALL_DEFINE2(listen, int, fd, int, backlog)
78076 if ((unsigned int)backlog > somaxconn)
78077 backlog = somaxconn;
78078
78079 + if (gr_handle_sock_server_other(sock->sk)) {
78080 + err = -EPERM;
78081 + goto error;
78082 + }
78083 +
78084 + err = gr_search_listen(sock);
78085 + if (err)
78086 + goto error;
78087 +
78088 err = security_socket_listen(sock, backlog);
78089 if (!err)
78090 err = sock->ops->listen(sock, backlog);
78091
78092 +error:
78093 fput_light(sock->file, fput_needed);
78094 }
78095 return err;
78096 @@ -1531,6 +1565,18 @@ SYSCALL_DEFINE4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr,
78097 newsock->type = sock->type;
78098 newsock->ops = sock->ops;
78099
78100 + if (gr_handle_sock_server_other(sock->sk)) {
78101 + err = -EPERM;
78102 + sock_release(newsock);
78103 + goto out_put;
78104 + }
78105 +
78106 + err = gr_search_accept(sock);
78107 + if (err) {
78108 + sock_release(newsock);
78109 + goto out_put;
78110 + }
78111 +
78112 /*
78113 * We don't need try_module_get here, as the listening socket (sock)
78114 * has the protocol module (sock->ops->owner) held.
78115 @@ -1569,6 +1615,8 @@ SYSCALL_DEFINE4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr,
78116 fd_install(newfd, newfile);
78117 err = newfd;
78118
78119 + gr_attach_curr_ip(newsock->sk);
78120 +
78121 out_put:
78122 fput_light(sock->file, fput_needed);
78123 out:
78124 @@ -1601,6 +1649,7 @@ SYSCALL_DEFINE3(connect, int, fd, struct sockaddr __user *, uservaddr,
78125 int, addrlen)
78126 {
78127 struct socket *sock;
78128 + struct sockaddr *sck;
78129 struct sockaddr_storage address;
78130 int err, fput_needed;
78131
78132 @@ -1611,6 +1660,17 @@ SYSCALL_DEFINE3(connect, int, fd, struct sockaddr __user *, uservaddr,
78133 if (err < 0)
78134 goto out_put;
78135
78136 + sck = (struct sockaddr *)&address;
78137 +
78138 + if (gr_handle_sock_client(sck)) {
78139 + err = -EACCES;
78140 + goto out_put;
78141 + }
78142 +
78143 + err = gr_search_connect(sock, (struct sockaddr_in *)sck);
78144 + if (err)
78145 + goto out_put;
78146 +
78147 err =
78148 security_socket_connect(sock, (struct sockaddr *)&address, addrlen);
78149 if (err)
78150 @@ -1965,7 +2025,7 @@ static int __sys_sendmsg(struct socket *sock, struct msghdr __user *msg,
78151 * checking falls down on this.
78152 */
78153 if (copy_from_user(ctl_buf,
78154 - (void __user __force *)msg_sys->msg_control,
78155 + (void __force_user *)msg_sys->msg_control,
78156 ctl_len))
78157 goto out_freectl;
78158 msg_sys->msg_control = ctl_buf;
78159 @@ -2133,7 +2193,7 @@ static int __sys_recvmsg(struct socket *sock, struct msghdr __user *msg,
78160 * kernel msghdr to use the kernel address space)
78161 */
78162
78163 - uaddr = (__force void __user *)msg_sys->msg_name;
78164 + uaddr = (void __force_user *)msg_sys->msg_name;
78165 uaddr_len = COMPAT_NAMELEN(msg);
78166 if (MSG_CMSG_COMPAT & flags) {
78167 err = verify_compat_iovec(msg_sys, iov, &addr, VERIFY_WRITE);
78168 @@ -2761,7 +2821,7 @@ static int ethtool_ioctl(struct net *net, struct compat_ifreq __user *ifr32)
78169 }
78170
78171 ifr = compat_alloc_user_space(buf_size);
78172 - rxnfc = (void *)ifr + ALIGN(sizeof(struct ifreq), 8);
78173 + rxnfc = (void __user *)ifr + ALIGN(sizeof(struct ifreq), 8);
78174
78175 if (copy_in_user(&ifr->ifr_name, &ifr32->ifr_name, IFNAMSIZ))
78176 return -EFAULT;
78177 @@ -2785,12 +2845,12 @@ static int ethtool_ioctl(struct net *net, struct compat_ifreq __user *ifr32)
78178 offsetof(struct ethtool_rxnfc, fs.ring_cookie));
78179
78180 if (copy_in_user(rxnfc, compat_rxnfc,
78181 - (void *)(&rxnfc->fs.m_ext + 1) -
78182 - (void *)rxnfc) ||
78183 + (void __user *)(&rxnfc->fs.m_ext + 1) -
78184 + (void __user *)rxnfc) ||
78185 copy_in_user(&rxnfc->fs.ring_cookie,
78186 &compat_rxnfc->fs.ring_cookie,
78187 - (void *)(&rxnfc->fs.location + 1) -
78188 - (void *)&rxnfc->fs.ring_cookie) ||
78189 + (void __user *)(&rxnfc->fs.location + 1) -
78190 + (void __user *)&rxnfc->fs.ring_cookie) ||
78191 copy_in_user(&rxnfc->rule_cnt, &compat_rxnfc->rule_cnt,
78192 sizeof(rxnfc->rule_cnt)))
78193 return -EFAULT;
78194 @@ -2802,12 +2862,12 @@ static int ethtool_ioctl(struct net *net, struct compat_ifreq __user *ifr32)
78195
78196 if (convert_out) {
78197 if (copy_in_user(compat_rxnfc, rxnfc,
78198 - (const void *)(&rxnfc->fs.m_ext + 1) -
78199 - (const void *)rxnfc) ||
78200 + (const void __user *)(&rxnfc->fs.m_ext + 1) -
78201 + (const void __user *)rxnfc) ||
78202 copy_in_user(&compat_rxnfc->fs.ring_cookie,
78203 &rxnfc->fs.ring_cookie,
78204 - (const void *)(&rxnfc->fs.location + 1) -
78205 - (const void *)&rxnfc->fs.ring_cookie) ||
78206 + (const void __user *)(&rxnfc->fs.location + 1) -
78207 + (const void __user *)&rxnfc->fs.ring_cookie) ||
78208 copy_in_user(&compat_rxnfc->rule_cnt, &rxnfc->rule_cnt,
78209 sizeof(rxnfc->rule_cnt)))
78210 return -EFAULT;
78211 @@ -2877,7 +2937,7 @@ static int bond_ioctl(struct net *net, unsigned int cmd,
78212 old_fs = get_fs();
78213 set_fs(KERNEL_DS);
78214 err = dev_ioctl(net, cmd,
78215 - (struct ifreq __user __force *) &kifr);
78216 + (struct ifreq __force_user *) &kifr);
78217 set_fs(old_fs);
78218
78219 return err;
78220 @@ -2986,7 +3046,7 @@ static int compat_sioc_ifmap(struct net *net, unsigned int cmd,
78221
78222 old_fs = get_fs();
78223 set_fs(KERNEL_DS);
78224 - err = dev_ioctl(net, cmd, (void __user __force *)&ifr);
78225 + err = dev_ioctl(net, cmd, (void __force_user *)&ifr);
78226 set_fs(old_fs);
78227
78228 if (cmd == SIOCGIFMAP && !err) {
78229 @@ -3091,7 +3151,7 @@ static int routing_ioctl(struct net *net, struct socket *sock,
78230 ret |= __get_user(rtdev, &(ur4->rt_dev));
78231 if (rtdev) {
78232 ret |= copy_from_user(devname, compat_ptr(rtdev), 15);
78233 - r4.rt_dev = (char __user __force *)devname;
78234 + r4.rt_dev = (char __force_user *)devname;
78235 devname[15] = 0;
78236 } else
78237 r4.rt_dev = NULL;
78238 @@ -3317,8 +3377,8 @@ int kernel_getsockopt(struct socket *sock, int level, int optname,
78239 int __user *uoptlen;
78240 int err;
78241
78242 - uoptval = (char __user __force *) optval;
78243 - uoptlen = (int __user __force *) optlen;
78244 + uoptval = (char __force_user *) optval;
78245 + uoptlen = (int __force_user *) optlen;
78246
78247 set_fs(KERNEL_DS);
78248 if (level == SOL_SOCKET)
78249 @@ -3338,7 +3398,7 @@ int kernel_setsockopt(struct socket *sock, int level, int optname,
78250 char __user *uoptval;
78251 int err;
78252
78253 - uoptval = (char __user __force *) optval;
78254 + uoptval = (char __force_user *) optval;
78255
78256 set_fs(KERNEL_DS);
78257 if (level == SOL_SOCKET)
78258 diff --git a/net/sunrpc/sched.c b/net/sunrpc/sched.c
78259 index eda32ae..1c9fa7c 100644
78260 --- a/net/sunrpc/sched.c
78261 +++ b/net/sunrpc/sched.c
78262 @@ -240,9 +240,9 @@ static int rpc_wait_bit_killable(void *word)
78263 #ifdef RPC_DEBUG
78264 static void rpc_task_set_debuginfo(struct rpc_task *task)
78265 {
78266 - static atomic_t rpc_pid;
78267 + static atomic_unchecked_t rpc_pid;
78268
78269 - task->tk_pid = atomic_inc_return(&rpc_pid);
78270 + task->tk_pid = atomic_inc_return_unchecked(&rpc_pid);
78271 }
78272 #else
78273 static inline void rpc_task_set_debuginfo(struct rpc_task *task)
78274 diff --git a/net/sunrpc/xprtrdma/svc_rdma.c b/net/sunrpc/xprtrdma/svc_rdma.c
78275 index 8343737..677025e 100644
78276 --- a/net/sunrpc/xprtrdma/svc_rdma.c
78277 +++ b/net/sunrpc/xprtrdma/svc_rdma.c
78278 @@ -62,15 +62,15 @@ unsigned int svcrdma_max_req_size = RPCRDMA_MAX_REQ_SIZE;
78279 static unsigned int min_max_inline = 4096;
78280 static unsigned int max_max_inline = 65536;
78281
78282 -atomic_t rdma_stat_recv;
78283 -atomic_t rdma_stat_read;
78284 -atomic_t rdma_stat_write;
78285 -atomic_t rdma_stat_sq_starve;
78286 -atomic_t rdma_stat_rq_starve;
78287 -atomic_t rdma_stat_rq_poll;
78288 -atomic_t rdma_stat_rq_prod;
78289 -atomic_t rdma_stat_sq_poll;
78290 -atomic_t rdma_stat_sq_prod;
78291 +atomic_unchecked_t rdma_stat_recv;
78292 +atomic_unchecked_t rdma_stat_read;
78293 +atomic_unchecked_t rdma_stat_write;
78294 +atomic_unchecked_t rdma_stat_sq_starve;
78295 +atomic_unchecked_t rdma_stat_rq_starve;
78296 +atomic_unchecked_t rdma_stat_rq_poll;
78297 +atomic_unchecked_t rdma_stat_rq_prod;
78298 +atomic_unchecked_t rdma_stat_sq_poll;
78299 +atomic_unchecked_t rdma_stat_sq_prod;
78300
78301 /* Temporary NFS request map and context caches */
78302 struct kmem_cache *svc_rdma_map_cachep;
78303 @@ -110,7 +110,7 @@ static int read_reset_stat(ctl_table *table, int write,
78304 len -= *ppos;
78305 if (len > *lenp)
78306 len = *lenp;
78307 - if (len && copy_to_user(buffer, str_buf, len))
78308 + if (len > sizeof str_buf || (len && copy_to_user(buffer, str_buf, len)))
78309 return -EFAULT;
78310 *lenp = len;
78311 *ppos += len;
78312 @@ -151,63 +151,63 @@ static ctl_table svcrdma_parm_table[] = {
78313 {
78314 .procname = "rdma_stat_read",
78315 .data = &rdma_stat_read,
78316 - .maxlen = sizeof(atomic_t),
78317 + .maxlen = sizeof(atomic_unchecked_t),
78318 .mode = 0644,
78319 .proc_handler = read_reset_stat,
78320 },
78321 {
78322 .procname = "rdma_stat_recv",
78323 .data = &rdma_stat_recv,
78324 - .maxlen = sizeof(atomic_t),
78325 + .maxlen = sizeof(atomic_unchecked_t),
78326 .mode = 0644,
78327 .proc_handler = read_reset_stat,
78328 },
78329 {
78330 .procname = "rdma_stat_write",
78331 .data = &rdma_stat_write,
78332 - .maxlen = sizeof(atomic_t),
78333 + .maxlen = sizeof(atomic_unchecked_t),
78334 .mode = 0644,
78335 .proc_handler = read_reset_stat,
78336 },
78337 {
78338 .procname = "rdma_stat_sq_starve",
78339 .data = &rdma_stat_sq_starve,
78340 - .maxlen = sizeof(atomic_t),
78341 + .maxlen = sizeof(atomic_unchecked_t),
78342 .mode = 0644,
78343 .proc_handler = read_reset_stat,
78344 },
78345 {
78346 .procname = "rdma_stat_rq_starve",
78347 .data = &rdma_stat_rq_starve,
78348 - .maxlen = sizeof(atomic_t),
78349 + .maxlen = sizeof(atomic_unchecked_t),
78350 .mode = 0644,
78351 .proc_handler = read_reset_stat,
78352 },
78353 {
78354 .procname = "rdma_stat_rq_poll",
78355 .data = &rdma_stat_rq_poll,
78356 - .maxlen = sizeof(atomic_t),
78357 + .maxlen = sizeof(atomic_unchecked_t),
78358 .mode = 0644,
78359 .proc_handler = read_reset_stat,
78360 },
78361 {
78362 .procname = "rdma_stat_rq_prod",
78363 .data = &rdma_stat_rq_prod,
78364 - .maxlen = sizeof(atomic_t),
78365 + .maxlen = sizeof(atomic_unchecked_t),
78366 .mode = 0644,
78367 .proc_handler = read_reset_stat,
78368 },
78369 {
78370 .procname = "rdma_stat_sq_poll",
78371 .data = &rdma_stat_sq_poll,
78372 - .maxlen = sizeof(atomic_t),
78373 + .maxlen = sizeof(atomic_unchecked_t),
78374 .mode = 0644,
78375 .proc_handler = read_reset_stat,
78376 },
78377 {
78378 .procname = "rdma_stat_sq_prod",
78379 .data = &rdma_stat_sq_prod,
78380 - .maxlen = sizeof(atomic_t),
78381 + .maxlen = sizeof(atomic_unchecked_t),
78382 .mode = 0644,
78383 .proc_handler = read_reset_stat,
78384 },
78385 diff --git a/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c b/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c
78386 index 41cb63b..c4a1489 100644
78387 --- a/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c
78388 +++ b/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c
78389 @@ -501,7 +501,7 @@ next_sge:
78390 svc_rdma_put_context(ctxt, 0);
78391 goto out;
78392 }
78393 - atomic_inc(&rdma_stat_read);
78394 + atomic_inc_unchecked(&rdma_stat_read);
78395
78396 if (read_wr.num_sge < chl_map->ch[ch_no].count) {
78397 chl_map->ch[ch_no].count -= read_wr.num_sge;
78398 @@ -611,7 +611,7 @@ int svc_rdma_recvfrom(struct svc_rqst *rqstp)
78399 dto_q);
78400 list_del_init(&ctxt->dto_q);
78401 } else {
78402 - atomic_inc(&rdma_stat_rq_starve);
78403 + atomic_inc_unchecked(&rdma_stat_rq_starve);
78404 clear_bit(XPT_DATA, &xprt->xpt_flags);
78405 ctxt = NULL;
78406 }
78407 @@ -631,7 +631,7 @@ int svc_rdma_recvfrom(struct svc_rqst *rqstp)
78408 dprintk("svcrdma: processing ctxt=%p on xprt=%p, rqstp=%p, status=%d\n",
78409 ctxt, rdma_xprt, rqstp, ctxt->wc_status);
78410 BUG_ON(ctxt->wc_status != IB_WC_SUCCESS);
78411 - atomic_inc(&rdma_stat_recv);
78412 + atomic_inc_unchecked(&rdma_stat_recv);
78413
78414 /* Build up the XDR from the receive buffers. */
78415 rdma_build_arg_xdr(rqstp, ctxt, ctxt->byte_len);
78416 diff --git a/net/sunrpc/xprtrdma/svc_rdma_sendto.c b/net/sunrpc/xprtrdma/svc_rdma_sendto.c
78417 index 42eb7ba..c887c45 100644
78418 --- a/net/sunrpc/xprtrdma/svc_rdma_sendto.c
78419 +++ b/net/sunrpc/xprtrdma/svc_rdma_sendto.c
78420 @@ -362,7 +362,7 @@ static int send_write(struct svcxprt_rdma *xprt, struct svc_rqst *rqstp,
78421 write_wr.wr.rdma.remote_addr = to;
78422
78423 /* Post It */
78424 - atomic_inc(&rdma_stat_write);
78425 + atomic_inc_unchecked(&rdma_stat_write);
78426 if (svc_rdma_send(xprt, &write_wr))
78427 goto err;
78428 return 0;
78429 diff --git a/net/sunrpc/xprtrdma/svc_rdma_transport.c b/net/sunrpc/xprtrdma/svc_rdma_transport.c
78430 index 73b428b..5f3f8f3 100644
78431 --- a/net/sunrpc/xprtrdma/svc_rdma_transport.c
78432 +++ b/net/sunrpc/xprtrdma/svc_rdma_transport.c
78433 @@ -292,7 +292,7 @@ static void rq_cq_reap(struct svcxprt_rdma *xprt)
78434 return;
78435
78436 ib_req_notify_cq(xprt->sc_rq_cq, IB_CQ_NEXT_COMP);
78437 - atomic_inc(&rdma_stat_rq_poll);
78438 + atomic_inc_unchecked(&rdma_stat_rq_poll);
78439
78440 while ((ret = ib_poll_cq(xprt->sc_rq_cq, 1, &wc)) > 0) {
78441 ctxt = (struct svc_rdma_op_ctxt *)(unsigned long)wc.wr_id;
78442 @@ -314,7 +314,7 @@ static void rq_cq_reap(struct svcxprt_rdma *xprt)
78443 }
78444
78445 if (ctxt)
78446 - atomic_inc(&rdma_stat_rq_prod);
78447 + atomic_inc_unchecked(&rdma_stat_rq_prod);
78448
78449 set_bit(XPT_DATA, &xprt->sc_xprt.xpt_flags);
78450 /*
78451 @@ -386,7 +386,7 @@ static void sq_cq_reap(struct svcxprt_rdma *xprt)
78452 return;
78453
78454 ib_req_notify_cq(xprt->sc_sq_cq, IB_CQ_NEXT_COMP);
78455 - atomic_inc(&rdma_stat_sq_poll);
78456 + atomic_inc_unchecked(&rdma_stat_sq_poll);
78457 while ((ret = ib_poll_cq(cq, 1, &wc)) > 0) {
78458 if (wc.status != IB_WC_SUCCESS)
78459 /* Close the transport */
78460 @@ -404,7 +404,7 @@ static void sq_cq_reap(struct svcxprt_rdma *xprt)
78461 }
78462
78463 if (ctxt)
78464 - atomic_inc(&rdma_stat_sq_prod);
78465 + atomic_inc_unchecked(&rdma_stat_sq_prod);
78466 }
78467
78468 static void sq_comp_handler(struct ib_cq *cq, void *cq_context)
78469 @@ -1266,7 +1266,7 @@ int svc_rdma_send(struct svcxprt_rdma *xprt, struct ib_send_wr *wr)
78470 spin_lock_bh(&xprt->sc_lock);
78471 if (xprt->sc_sq_depth < atomic_read(&xprt->sc_sq_count) + wr_count) {
78472 spin_unlock_bh(&xprt->sc_lock);
78473 - atomic_inc(&rdma_stat_sq_starve);
78474 + atomic_inc_unchecked(&rdma_stat_sq_starve);
78475
78476 /* See if we can opportunistically reap SQ WR to make room */
78477 sq_cq_reap(xprt);
78478 diff --git a/net/sysctl_net.c b/net/sysctl_net.c
78479 index e3a6e37..be2ea77 100644
78480 --- a/net/sysctl_net.c
78481 +++ b/net/sysctl_net.c
78482 @@ -43,7 +43,7 @@ static int net_ctl_permissions(struct ctl_table_root *root,
78483 struct ctl_table *table)
78484 {
78485 /* Allow network administrator to have same access as root. */
78486 - if (capable(CAP_NET_ADMIN)) {
78487 + if (capable_nolog(CAP_NET_ADMIN)) {
78488 int mode = (table->mode >> 6) & 7;
78489 return (mode << 6) | (mode << 3) | mode;
78490 }
78491 diff --git a/net/tipc/link.c b/net/tipc/link.c
78492 index 7a614f4..b14dbd2 100644
78493 --- a/net/tipc/link.c
78494 +++ b/net/tipc/link.c
78495 @@ -1164,7 +1164,7 @@ static int link_send_sections_long(struct tipc_port *sender,
78496 struct tipc_msg fragm_hdr;
78497 struct sk_buff *buf, *buf_chain, *prev;
78498 u32 fragm_crs, fragm_rest, hsz, sect_rest;
78499 - const unchar *sect_crs;
78500 + const unchar __user *sect_crs;
78501 int curr_sect;
78502 u32 fragm_no;
78503
78504 @@ -1205,7 +1205,7 @@ again:
78505
78506 if (!sect_rest) {
78507 sect_rest = msg_sect[++curr_sect].iov_len;
78508 - sect_crs = (const unchar *)msg_sect[curr_sect].iov_base;
78509 + sect_crs = (const unchar __user *)msg_sect[curr_sect].iov_base;
78510 }
78511
78512 if (sect_rest < fragm_rest)
78513 @@ -1224,7 +1224,7 @@ error:
78514 }
78515 } else
78516 skb_copy_to_linear_data_offset(buf, fragm_crs,
78517 - sect_crs, sz);
78518 + (const void __force_kernel *)sect_crs, sz);
78519 sect_crs += sz;
78520 sect_rest -= sz;
78521 fragm_crs += sz;
78522 diff --git a/net/tipc/msg.c b/net/tipc/msg.c
78523 index deea0d2..fa13bd7 100644
78524 --- a/net/tipc/msg.c
78525 +++ b/net/tipc/msg.c
78526 @@ -98,7 +98,7 @@ int tipc_msg_build(struct tipc_msg *hdr, struct iovec const *msg_sect,
78527 msg_sect[cnt].iov_len);
78528 else
78529 skb_copy_to_linear_data_offset(*buf, pos,
78530 - msg_sect[cnt].iov_base,
78531 + (const void __force_kernel *)msg_sect[cnt].iov_base,
78532 msg_sect[cnt].iov_len);
78533 pos += msg_sect[cnt].iov_len;
78534 }
78535 diff --git a/net/tipc/subscr.c b/net/tipc/subscr.c
78536 index f976e9cd..560d055 100644
78537 --- a/net/tipc/subscr.c
78538 +++ b/net/tipc/subscr.c
78539 @@ -96,7 +96,7 @@ static void subscr_send_event(struct tipc_subscription *sub,
78540 {
78541 struct iovec msg_sect;
78542
78543 - msg_sect.iov_base = (void *)&sub->evt;
78544 + msg_sect.iov_base = (void __force_user *)&sub->evt;
78545 msg_sect.iov_len = sizeof(struct tipc_event);
78546
78547 sub->evt.event = htohl(event, sub->swap);
78548 diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
78549 index 641f2e4..a63f5e1 100644
78550 --- a/net/unix/af_unix.c
78551 +++ b/net/unix/af_unix.c
78552 @@ -780,6 +780,12 @@ static struct sock *unix_find_other(struct net *net,
78553 err = -ECONNREFUSED;
78554 if (!S_ISSOCK(inode->i_mode))
78555 goto put_fail;
78556 +
78557 + if (!gr_acl_handle_unix(path.dentry, path.mnt)) {
78558 + err = -EACCES;
78559 + goto put_fail;
78560 + }
78561 +
78562 u = unix_find_socket_byinode(inode);
78563 if (!u)
78564 goto put_fail;
78565 @@ -800,6 +806,13 @@ static struct sock *unix_find_other(struct net *net,
78566 if (u) {
78567 struct dentry *dentry;
78568 dentry = unix_sk(u)->path.dentry;
78569 +
78570 + if (!gr_handle_chroot_unix(pid_vnr(u->sk_peer_pid))) {
78571 + err = -EPERM;
78572 + sock_put(u);
78573 + goto fail;
78574 + }
78575 +
78576 if (dentry)
78577 touch_atime(&unix_sk(u)->path);
78578 } else
78579 @@ -882,11 +895,18 @@ static int unix_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
78580 err = security_path_mknod(&path, dentry, mode, 0);
78581 if (err)
78582 goto out_mknod_drop_write;
78583 + if (!gr_acl_handle_mknod(dentry, path.dentry, path.mnt, mode)) {
78584 + err = -EACCES;
78585 + goto out_mknod_drop_write;
78586 + }
78587 err = vfs_mknod(path.dentry->d_inode, dentry, mode, 0);
78588 out_mknod_drop_write:
78589 mnt_drop_write(path.mnt);
78590 if (err)
78591 goto out_mknod_dput;
78592 +
78593 + gr_handle_create(dentry, path.mnt);
78594 +
78595 mutex_unlock(&path.dentry->d_inode->i_mutex);
78596 dput(path.dentry);
78597 path.dentry = dentry;
78598 diff --git a/net/wireless/core.h b/net/wireless/core.h
78599 index bc686ef..27845e6 100644
78600 --- a/net/wireless/core.h
78601 +++ b/net/wireless/core.h
78602 @@ -27,7 +27,7 @@ struct cfg80211_registered_device {
78603 struct mutex mtx;
78604
78605 /* rfkill support */
78606 - struct rfkill_ops rfkill_ops;
78607 + rfkill_ops_no_const rfkill_ops;
78608 struct rfkill *rfkill;
78609 struct work_struct rfkill_sync;
78610
78611 diff --git a/net/wireless/wext-core.c b/net/wireless/wext-core.c
78612 index b0eb7aa..7d73e82 100644
78613 --- a/net/wireless/wext-core.c
78614 +++ b/net/wireless/wext-core.c
78615 @@ -748,8 +748,7 @@ static int ioctl_standard_iw_point(struct iw_point *iwp, unsigned int cmd,
78616 */
78617
78618 /* Support for very large requests */
78619 - if ((descr->flags & IW_DESCR_FLAG_NOMAX) &&
78620 - (user_length > descr->max_tokens)) {
78621 + if (user_length > descr->max_tokens) {
78622 /* Allow userspace to GET more than max so
78623 * we can support any size GET requests.
78624 * There is still a limit : -ENOMEM.
78625 @@ -788,22 +787,6 @@ static int ioctl_standard_iw_point(struct iw_point *iwp, unsigned int cmd,
78626 }
78627 }
78628
78629 - if (IW_IS_GET(cmd) && !(descr->flags & IW_DESCR_FLAG_NOMAX)) {
78630 - /*
78631 - * If this is a GET, but not NOMAX, it means that the extra
78632 - * data is not bounded by userspace, but by max_tokens. Thus
78633 - * set the length to max_tokens. This matches the extra data
78634 - * allocation.
78635 - * The driver should fill it with the number of tokens it
78636 - * provided, and it may check iwp->length rather than having
78637 - * knowledge of max_tokens. If the driver doesn't change the
78638 - * iwp->length, this ioctl just copies back max_token tokens
78639 - * filled with zeroes. Hopefully the driver isn't claiming
78640 - * them to be valid data.
78641 - */
78642 - iwp->length = descr->max_tokens;
78643 - }
78644 -
78645 err = handler(dev, info, (union iwreq_data *) iwp, extra);
78646
78647 iwp->length += essid_compat;
78648 diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
78649 index ccfbd32..9b61cf9f 100644
78650 --- a/net/xfrm/xfrm_policy.c
78651 +++ b/net/xfrm/xfrm_policy.c
78652 @@ -300,7 +300,7 @@ static void xfrm_policy_kill(struct xfrm_policy *policy)
78653 {
78654 policy->walk.dead = 1;
78655
78656 - atomic_inc(&policy->genid);
78657 + atomic_inc_unchecked(&policy->genid);
78658
78659 if (del_timer(&policy->timer))
78660 xfrm_pol_put(policy);
78661 @@ -584,7 +584,7 @@ int xfrm_policy_insert(int dir, struct xfrm_policy *policy, int excl)
78662 hlist_add_head(&policy->bydst, chain);
78663 xfrm_pol_hold(policy);
78664 net->xfrm.policy_count[dir]++;
78665 - atomic_inc(&flow_cache_genid);
78666 + atomic_inc_unchecked(&flow_cache_genid);
78667 if (delpol)
78668 __xfrm_policy_unlink(delpol, dir);
78669 policy->index = delpol ? delpol->index : xfrm_gen_index(net, dir);
78670 @@ -1532,7 +1532,7 @@ free_dst:
78671 goto out;
78672 }
78673
78674 -static int inline
78675 +static inline int
78676 xfrm_dst_alloc_copy(void **target, const void *src, int size)
78677 {
78678 if (!*target) {
78679 @@ -1544,7 +1544,7 @@ xfrm_dst_alloc_copy(void **target, const void *src, int size)
78680 return 0;
78681 }
78682
78683 -static int inline
78684 +static inline int
78685 xfrm_dst_update_parent(struct dst_entry *dst, const struct xfrm_selector *sel)
78686 {
78687 #ifdef CONFIG_XFRM_SUB_POLICY
78688 @@ -1556,7 +1556,7 @@ xfrm_dst_update_parent(struct dst_entry *dst, const struct xfrm_selector *sel)
78689 #endif
78690 }
78691
78692 -static int inline
78693 +static inline int
78694 xfrm_dst_update_origin(struct dst_entry *dst, const struct flowi *fl)
78695 {
78696 #ifdef CONFIG_XFRM_SUB_POLICY
78697 @@ -1650,7 +1650,7 @@ xfrm_resolve_and_create_bundle(struct xfrm_policy **pols, int num_pols,
78698
78699 xdst->num_pols = num_pols;
78700 memcpy(xdst->pols, pols, sizeof(struct xfrm_policy*) * num_pols);
78701 - xdst->policy_genid = atomic_read(&pols[0]->genid);
78702 + xdst->policy_genid = atomic_read_unchecked(&pols[0]->genid);
78703
78704 return xdst;
78705 }
78706 @@ -2350,7 +2350,7 @@ static int xfrm_bundle_ok(struct xfrm_dst *first)
78707 if (xdst->xfrm_genid != dst->xfrm->genid)
78708 return 0;
78709 if (xdst->num_pols > 0 &&
78710 - xdst->policy_genid != atomic_read(&xdst->pols[0]->genid))
78711 + xdst->policy_genid != atomic_read_unchecked(&xdst->pols[0]->genid))
78712 return 0;
78713
78714 mtu = dst_mtu(dst->child);
78715 @@ -2887,7 +2887,7 @@ static int xfrm_policy_migrate(struct xfrm_policy *pol,
78716 sizeof(pol->xfrm_vec[i].saddr));
78717 pol->xfrm_vec[i].encap_family = mp->new_family;
78718 /* flush bundles */
78719 - atomic_inc(&pol->genid);
78720 + atomic_inc_unchecked(&pol->genid);
78721 }
78722 }
78723
78724 diff --git a/scripts/Makefile.build b/scripts/Makefile.build
78725 index ff1720d..ed8475e 100644
78726 --- a/scripts/Makefile.build
78727 +++ b/scripts/Makefile.build
78728 @@ -111,7 +111,7 @@ endif
78729 endif
78730
78731 # Do not include host rules unless needed
78732 -ifneq ($(hostprogs-y)$(hostprogs-m),)
78733 +ifneq ($(hostprogs-y)$(hostprogs-m)$(hostlibs-y)$(hostlibs-m)$(hostcxxlibs-y)$(hostcxxlibs-m),)
78734 include scripts/Makefile.host
78735 endif
78736
78737 diff --git a/scripts/Makefile.clean b/scripts/Makefile.clean
78738 index 686cb0d..9d653bf 100644
78739 --- a/scripts/Makefile.clean
78740 +++ b/scripts/Makefile.clean
78741 @@ -43,7 +43,8 @@ subdir-ymn := $(addprefix $(obj)/,$(subdir-ymn))
78742 __clean-files := $(extra-y) $(always) \
78743 $(targets) $(clean-files) \
78744 $(host-progs) \
78745 - $(hostprogs-y) $(hostprogs-m) $(hostprogs-)
78746 + $(hostprogs-y) $(hostprogs-m) $(hostprogs-) \
78747 + $(hostlibs-y) $(hostlibs-m) $(hostlibs-)
78748
78749 __clean-files := $(filter-out $(no-clean-files), $(__clean-files))
78750
78751 diff --git a/scripts/Makefile.host b/scripts/Makefile.host
78752 index 1ac414f..38575f7 100644
78753 --- a/scripts/Makefile.host
78754 +++ b/scripts/Makefile.host
78755 @@ -31,6 +31,8 @@
78756 # Note: Shared libraries consisting of C++ files are not supported
78757
78758 __hostprogs := $(sort $(hostprogs-y) $(hostprogs-m))
78759 +__hostlibs := $(sort $(hostlibs-y) $(hostlibs-m))
78760 +__hostcxxlibs := $(sort $(hostcxxlibs-y) $(hostcxxlibs-m))
78761
78762 # C code
78763 # Executables compiled from a single .c file
78764 @@ -54,11 +56,15 @@ host-cxxobjs := $(sort $(foreach m,$(host-cxxmulti),$($(m)-cxxobjs)))
78765 # Shared libaries (only .c supported)
78766 # Shared libraries (.so) - all .so files referenced in "xxx-objs"
78767 host-cshlib := $(sort $(filter %.so, $(host-cobjs)))
78768 +host-cshlib += $(sort $(filter %.so, $(__hostlibs)))
78769 +host-cxxshlib := $(sort $(filter %.so, $(__hostcxxlibs)))
78770 # Remove .so files from "xxx-objs"
78771 host-cobjs := $(filter-out %.so,$(host-cobjs))
78772 +host-cxxobjs := $(filter-out %.so,$(host-cxxobjs))
78773
78774 -#Object (.o) files used by the shared libaries
78775 +# Object (.o) files used by the shared libaries
78776 host-cshobjs := $(sort $(foreach m,$(host-cshlib),$($(m:.so=-objs))))
78777 +host-cxxshobjs := $(sort $(foreach m,$(host-cxxshlib),$($(m:.so=-objs))))
78778
78779 # output directory for programs/.o files
78780 # hostprogs-y := tools/build may have been specified. Retrieve directory
78781 @@ -82,7 +88,9 @@ host-cobjs := $(addprefix $(obj)/,$(host-cobjs))
78782 host-cxxmulti := $(addprefix $(obj)/,$(host-cxxmulti))
78783 host-cxxobjs := $(addprefix $(obj)/,$(host-cxxobjs))
78784 host-cshlib := $(addprefix $(obj)/,$(host-cshlib))
78785 +host-cxxshlib := $(addprefix $(obj)/,$(host-cxxshlib))
78786 host-cshobjs := $(addprefix $(obj)/,$(host-cshobjs))
78787 +host-cxxshobjs := $(addprefix $(obj)/,$(host-cxxshobjs))
78788 host-objdirs := $(addprefix $(obj)/,$(host-objdirs))
78789
78790 obj-dirs += $(host-objdirs)
78791 @@ -156,6 +164,13 @@ quiet_cmd_host-cshobjs = HOSTCC -fPIC $@
78792 $(host-cshobjs): $(obj)/%.o: $(src)/%.c FORCE
78793 $(call if_changed_dep,host-cshobjs)
78794
78795 +# Compile .c file, create position independent .o file
78796 +# host-cxxshobjs -> .o
78797 +quiet_cmd_host-cxxshobjs = HOSTCXX -fPIC $@
78798 + cmd_host-cxxshobjs = $(HOSTCXX) $(hostcxx_flags) -fPIC -c -o $@ $<
78799 +$(host-cxxshobjs): $(obj)/%.o: $(src)/%.c FORCE
78800 + $(call if_changed_dep,host-cxxshobjs)
78801 +
78802 # Link a shared library, based on position independent .o files
78803 # *.o -> .so shared library (host-cshlib)
78804 quiet_cmd_host-cshlib = HOSTLLD -shared $@
78805 @@ -165,6 +180,15 @@ quiet_cmd_host-cshlib = HOSTLLD -shared $@
78806 $(host-cshlib): $(obj)/%: $(host-cshobjs) FORCE
78807 $(call if_changed,host-cshlib)
78808
78809 +# Link a shared library, based on position independent .o files
78810 +# *.o -> .so shared library (host-cxxshlib)
78811 +quiet_cmd_host-cxxshlib = HOSTLLD -shared $@
78812 + cmd_host-cxxshlib = $(HOSTCXX) $(HOSTLDFLAGS) -shared -o $@ \
78813 + $(addprefix $(obj)/,$($(@F:.so=-objs))) \
78814 + $(HOST_LOADLIBES) $(HOSTLOADLIBES_$(@F))
78815 +$(host-cxxshlib): $(obj)/%: $(host-cxxshobjs) FORCE
78816 + $(call if_changed,host-cxxshlib)
78817 +
78818 targets += $(host-csingle) $(host-cmulti) $(host-cobjs)\
78819 - $(host-cxxmulti) $(host-cxxobjs) $(host-cshlib) $(host-cshobjs)
78820 + $(host-cxxmulti) $(host-cxxobjs) $(host-cshlib) $(host-cshobjs) $(host-cxxshlib) $(host-cxxshobjs)
78821
78822 diff --git a/scripts/basic/fixdep.c b/scripts/basic/fixdep.c
78823 index cb1f50c..cef2a7c 100644
78824 --- a/scripts/basic/fixdep.c
78825 +++ b/scripts/basic/fixdep.c
78826 @@ -161,7 +161,7 @@ static unsigned int strhash(const char *str, unsigned int sz)
78827 /*
78828 * Lookup a value in the configuration string.
78829 */
78830 -static int is_defined_config(const char *name, int len, unsigned int hash)
78831 +static int is_defined_config(const char *name, unsigned int len, unsigned int hash)
78832 {
78833 struct item *aux;
78834
78835 @@ -211,10 +211,10 @@ static void clear_config(void)
78836 /*
78837 * Record the use of a CONFIG_* word.
78838 */
78839 -static void use_config(const char *m, int slen)
78840 +static void use_config(const char *m, unsigned int slen)
78841 {
78842 unsigned int hash = strhash(m, slen);
78843 - int c, i;
78844 + unsigned int c, i;
78845
78846 if (is_defined_config(m, slen, hash))
78847 return;
78848 @@ -235,9 +235,9 @@ static void use_config(const char *m, int slen)
78849
78850 static void parse_config_file(const char *map, size_t len)
78851 {
78852 - const int *end = (const int *) (map + len);
78853 + const unsigned int *end = (const unsigned int *) (map + len);
78854 /* start at +1, so that p can never be < map */
78855 - const int *m = (const int *) map + 1;
78856 + const unsigned int *m = (const unsigned int *) map + 1;
78857 const char *p, *q;
78858
78859 for (; m < end; m++) {
78860 @@ -406,7 +406,7 @@ static void print_deps(void)
78861 static void traps(void)
78862 {
78863 static char test[] __attribute__((aligned(sizeof(int)))) = "CONF";
78864 - int *p = (int *)test;
78865 + unsigned int *p = (unsigned int *)test;
78866
78867 if (*p != INT_CONF) {
78868 fprintf(stderr, "fixdep: sizeof(int) != 4 or wrong endianess? %#x\n",
78869 diff --git a/scripts/gcc-plugin.sh b/scripts/gcc-plugin.sh
78870 new file mode 100644
78871 index 0000000..008ac1a
78872 --- /dev/null
78873 +++ b/scripts/gcc-plugin.sh
78874 @@ -0,0 +1,17 @@
78875 +#!/bin/bash
78876 +plugincc=`$1 -x c -shared - -o /dev/null -I\`$3 -print-file-name=plugin\`/include 2>&1 <<EOF
78877 +#include "gcc-plugin.h"
78878 +#include "tree.h"
78879 +#include "tm.h"
78880 +#include "rtl.h"
78881 +#ifdef ENABLE_BUILD_WITH_CXX
78882 +#warning $2
78883 +#else
78884 +#warning $1
78885 +#endif
78886 +EOF`
78887 +if [ $? -eq 0 ]
78888 +then
78889 + [[ "$plugincc" =~ "$1" ]] && echo "$1"
78890 + [[ "$plugincc" =~ "$2" ]] && echo "$2"
78891 +fi
78892 diff --git a/scripts/link-vmlinux.sh b/scripts/link-vmlinux.sh
78893 index cd9c6c6..0c8f0fa 100644
78894 --- a/scripts/link-vmlinux.sh
78895 +++ b/scripts/link-vmlinux.sh
78896 @@ -147,7 +147,7 @@ else
78897 fi;
78898
78899 # final build of init/
78900 -${MAKE} -f "${srctree}/scripts/Makefile.build" obj=init
78901 +${MAKE} -f "${srctree}/scripts/Makefile.build" obj=init GCC_PLUGINS_CFLAGS="${GCC_PLUGINS_CFLAGS}" GCC_PLUGINS_AFLAGS="${GCC_PLUGINS_AFLAGS}"
78902
78903 kallsymso=""
78904 kallsyms_vmlinux=""
78905 diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c
78906 index 5759751..b170367 100644
78907 --- a/scripts/mod/file2alias.c
78908 +++ b/scripts/mod/file2alias.c
78909 @@ -128,7 +128,7 @@ static void device_id_check(const char *modname, const char *device_id,
78910 unsigned long size, unsigned long id_size,
78911 void *symval)
78912 {
78913 - int i;
78914 + unsigned int i;
78915
78916 if (size % id_size || size < id_size) {
78917 if (cross_build != 0)
78918 @@ -158,7 +158,7 @@ static void device_id_check(const char *modname, const char *device_id,
78919 /* USB is special because the bcdDevice can be matched against a numeric range */
78920 /* Looks like "usb:vNpNdNdcNdscNdpNicNiscNipN" */
78921 static void do_usb_entry(struct usb_device_id *id,
78922 - unsigned int bcdDevice_initial, int bcdDevice_initial_digits,
78923 + unsigned int bcdDevice_initial, unsigned int bcdDevice_initial_digits,
78924 unsigned char range_lo, unsigned char range_hi,
78925 unsigned char max, struct module *mod)
78926 {
78927 @@ -259,7 +259,7 @@ static void do_usb_entry_multi(struct usb_device_id *id, struct module *mod)
78928 {
78929 unsigned int devlo, devhi;
78930 unsigned char chi, clo, max;
78931 - int ndigits;
78932 + unsigned int ndigits;
78933
78934 id->match_flags = TO_NATIVE(id->match_flags);
78935 id->idVendor = TO_NATIVE(id->idVendor);
78936 @@ -504,7 +504,7 @@ static void do_pnp_device_entry(void *symval, unsigned long size,
78937 for (i = 0; i < count; i++) {
78938 const char *id = (char *)devs[i].id;
78939 char acpi_id[sizeof(devs[0].id)];
78940 - int j;
78941 + unsigned int j;
78942
78943 buf_printf(&mod->dev_table_buf,
78944 "MODULE_ALIAS(\"pnp:d%s*\");\n", id);
78945 @@ -534,7 +534,7 @@ static void do_pnp_card_entries(void *symval, unsigned long size,
78946
78947 for (j = 0; j < PNP_MAX_DEVICES; j++) {
78948 const char *id = (char *)card->devs[j].id;
78949 - int i2, j2;
78950 + unsigned int i2, j2;
78951 int dup = 0;
78952
78953 if (!id[0])
78954 @@ -560,7 +560,7 @@ static void do_pnp_card_entries(void *symval, unsigned long size,
78955 /* add an individual alias for every device entry */
78956 if (!dup) {
78957 char acpi_id[sizeof(card->devs[0].id)];
78958 - int k;
78959 + unsigned int k;
78960
78961 buf_printf(&mod->dev_table_buf,
78962 "MODULE_ALIAS(\"pnp:d%s*\");\n", id);
78963 @@ -885,7 +885,7 @@ static void dmi_ascii_filter(char *d, const char *s)
78964 static int do_dmi_entry(const char *filename, struct dmi_system_id *id,
78965 char *alias)
78966 {
78967 - int i, j;
78968 + unsigned int i, j;
78969
78970 sprintf(alias, "dmi*");
78971
78972 diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
78973 index 0f84bb3..2d42035 100644
78974 --- a/scripts/mod/modpost.c
78975 +++ b/scripts/mod/modpost.c
78976 @@ -925,6 +925,7 @@ enum mismatch {
78977 ANY_INIT_TO_ANY_EXIT,
78978 ANY_EXIT_TO_ANY_INIT,
78979 EXPORT_TO_INIT_EXIT,
78980 + DATA_TO_TEXT
78981 };
78982
78983 struct sectioncheck {
78984 @@ -1033,6 +1034,12 @@ const struct sectioncheck sectioncheck[] = {
78985 .tosec = { INIT_SECTIONS, EXIT_SECTIONS, NULL },
78986 .mismatch = EXPORT_TO_INIT_EXIT,
78987 .symbol_white_list = { DEFAULT_SYMBOL_WHITE_LIST, NULL },
78988 +},
78989 +/* Do not reference code from writable data */
78990 +{
78991 + .fromsec = { DATA_SECTIONS, NULL },
78992 + .tosec = { TEXT_SECTIONS, NULL },
78993 + .mismatch = DATA_TO_TEXT
78994 }
78995 };
78996
78997 @@ -1155,10 +1162,10 @@ static Elf_Sym *find_elf_symbol(struct elf_info *elf, Elf64_Sword addr,
78998 continue;
78999 if (ELF_ST_TYPE(sym->st_info) == STT_SECTION)
79000 continue;
79001 - if (sym->st_value == addr)
79002 - return sym;
79003 /* Find a symbol nearby - addr are maybe negative */
79004 d = sym->st_value - addr;
79005 + if (d == 0)
79006 + return sym;
79007 if (d < 0)
79008 d = addr - sym->st_value;
79009 if (d < distance) {
79010 @@ -1437,6 +1444,14 @@ static void report_sec_mismatch(const char *modname,
79011 tosym, prl_to, prl_to, tosym);
79012 free(prl_to);
79013 break;
79014 + case DATA_TO_TEXT:
79015 +#if 0
79016 + fprintf(stderr,
79017 + "The %s %s:%s references\n"
79018 + "the %s %s:%s%s\n",
79019 + from, fromsec, fromsym, to, tosec, tosym, to_p);
79020 +#endif
79021 + break;
79022 }
79023 fprintf(stderr, "\n");
79024 }
79025 @@ -1671,7 +1686,7 @@ static void section_rel(const char *modname, struct elf_info *elf,
79026 static void check_sec_ref(struct module *mod, const char *modname,
79027 struct elf_info *elf)
79028 {
79029 - int i;
79030 + unsigned int i;
79031 Elf_Shdr *sechdrs = elf->sechdrs;
79032
79033 /* Walk through all sections */
79034 @@ -1769,7 +1784,7 @@ void __attribute__((format(printf, 2, 3))) buf_printf(struct buffer *buf,
79035 va_end(ap);
79036 }
79037
79038 -void buf_write(struct buffer *buf, const char *s, int len)
79039 +void buf_write(struct buffer *buf, const char *s, unsigned int len)
79040 {
79041 if (buf->size - buf->pos < len) {
79042 buf->size += len + SZ;
79043 @@ -1987,7 +2002,7 @@ static void write_if_changed(struct buffer *b, const char *fname)
79044 if (fstat(fileno(file), &st) < 0)
79045 goto close_write;
79046
79047 - if (st.st_size != b->pos)
79048 + if (st.st_size != (off_t)b->pos)
79049 goto close_write;
79050
79051 tmp = NOFAIL(malloc(b->pos));
79052 diff --git a/scripts/mod/modpost.h b/scripts/mod/modpost.h
79053 index 51207e4..f7d603d 100644
79054 --- a/scripts/mod/modpost.h
79055 +++ b/scripts/mod/modpost.h
79056 @@ -92,15 +92,15 @@ void *do_nofail(void *ptr, const char *expr);
79057
79058 struct buffer {
79059 char *p;
79060 - int pos;
79061 - int size;
79062 + unsigned int pos;
79063 + unsigned int size;
79064 };
79065
79066 void __attribute__((format(printf, 2, 3)))
79067 buf_printf(struct buffer *buf, const char *fmt, ...);
79068
79069 void
79070 -buf_write(struct buffer *buf, const char *s, int len);
79071 +buf_write(struct buffer *buf, const char *s, unsigned int len);
79072
79073 struct module {
79074 struct module *next;
79075 diff --git a/scripts/mod/sumversion.c b/scripts/mod/sumversion.c
79076 index 9dfcd6d..099068e 100644
79077 --- a/scripts/mod/sumversion.c
79078 +++ b/scripts/mod/sumversion.c
79079 @@ -470,7 +470,7 @@ static void write_version(const char *filename, const char *sum,
79080 goto out;
79081 }
79082
79083 - if (write(fd, sum, strlen(sum)+1) != strlen(sum)+1) {
79084 + if (write(fd, sum, strlen(sum)+1) != (ssize_t)strlen(sum)+1) {
79085 warn("writing sum in %s failed: %s\n",
79086 filename, strerror(errno));
79087 goto out;
79088 diff --git a/scripts/pnmtologo.c b/scripts/pnmtologo.c
79089 index 5c11312..72742b5 100644
79090 --- a/scripts/pnmtologo.c
79091 +++ b/scripts/pnmtologo.c
79092 @@ -237,14 +237,14 @@ static void write_header(void)
79093 fprintf(out, " * Linux logo %s\n", logoname);
79094 fputs(" */\n\n", out);
79095 fputs("#include <linux/linux_logo.h>\n\n", out);
79096 - fprintf(out, "static unsigned char %s_data[] __initdata = {\n",
79097 + fprintf(out, "static unsigned char %s_data[] = {\n",
79098 logoname);
79099 }
79100
79101 static void write_footer(void)
79102 {
79103 fputs("\n};\n\n", out);
79104 - fprintf(out, "const struct linux_logo %s __initconst = {\n", logoname);
79105 + fprintf(out, "const struct linux_logo %s = {\n", logoname);
79106 fprintf(out, "\t.type\t\t= %s,\n", logo_types[logo_type]);
79107 fprintf(out, "\t.width\t\t= %d,\n", logo_width);
79108 fprintf(out, "\t.height\t\t= %d,\n", logo_height);
79109 @@ -374,7 +374,7 @@ static void write_logo_clut224(void)
79110 fputs("\n};\n\n", out);
79111
79112 /* write logo clut */
79113 - fprintf(out, "static unsigned char %s_clut[] __initdata = {\n",
79114 + fprintf(out, "static unsigned char %s_clut[] = {\n",
79115 logoname);
79116 write_hex_cnt = 0;
79117 for (i = 0; i < logo_clutsize; i++) {
79118 diff --git a/security/Kconfig b/security/Kconfig
79119 index e9c6ac7..4349785 100644
79120 --- a/security/Kconfig
79121 +++ b/security/Kconfig
79122 @@ -4,6 +4,876 @@
79123
79124 menu "Security options"
79125
79126 +menu "Grsecurity"
79127 +
79128 + config ARCH_TRACK_EXEC_LIMIT
79129 + bool
79130 +
79131 + config PAX_KERNEXEC_PLUGIN
79132 + bool
79133 +
79134 + config PAX_PER_CPU_PGD
79135 + bool
79136 +
79137 + config TASK_SIZE_MAX_SHIFT
79138 + int
79139 + depends on X86_64
79140 + default 47 if !PAX_PER_CPU_PGD
79141 + default 42 if PAX_PER_CPU_PGD
79142 +
79143 + config PAX_ENABLE_PAE
79144 + bool
79145 + default y if (X86_32 && (MPENTIUM4 || MK8 || MPSC || MCORE2 || MATOM))
79146 +
79147 + config PAX_USERCOPY_SLABS
79148 + bool
79149 +
79150 +config GRKERNSEC
79151 + bool "Grsecurity"
79152 + select CRYPTO
79153 + select CRYPTO_SHA256
79154 + select PROC_FS
79155 + select STOP_MACHINE
79156 + help
79157 + If you say Y here, you will be able to configure many features
79158 + that will enhance the security of your system. It is highly
79159 + recommended that you say Y here and read through the help
79160 + for each option so that you fully understand the features and
79161 + can evaluate their usefulness for your machine.
79162 +
79163 +choice
79164 + prompt "Configuration Method"
79165 + depends on GRKERNSEC
79166 + default GRKERNSEC_CONFIG_CUSTOM
79167 + help
79168 +
79169 +config GRKERNSEC_CONFIG_AUTO
79170 + bool "Automatic"
79171 + help
79172 + If you choose this configuration method, you'll be able to answer a small
79173 + number of simple questions about how you plan to use this kernel.
79174 + The settings of grsecurity and PaX will be automatically configured for
79175 + the highest commonly-used settings within the provided constraints.
79176 +
79177 + If you require additional configuration, custom changes can still be made
79178 + from the "custom configuration" menu.
79179 +
79180 +config GRKERNSEC_CONFIG_CUSTOM
79181 + bool "Custom"
79182 + help
79183 + If you choose this configuration method, you'll be able to configure all
79184 + grsecurity and PaX settings manually. Via this method, no options are
79185 + automatically enabled.
79186 +
79187 +endchoice
79188 +
79189 +choice
79190 + prompt "Usage Type"
79191 + depends on (GRKERNSEC && GRKERNSEC_CONFIG_AUTO)
79192 + default GRKERNSEC_CONFIG_SERVER
79193 + help
79194 +
79195 +config GRKERNSEC_CONFIG_SERVER
79196 + bool "Server"
79197 + help
79198 + Choose this option if you plan to use this kernel on a server.
79199 +
79200 +config GRKERNSEC_CONFIG_DESKTOP
79201 + bool "Desktop"
79202 + help
79203 + Choose this option if you plan to use this kernel on a desktop.
79204 +
79205 +endchoice
79206 +
79207 +choice
79208 + prompt "Virtualization Type"
79209 + depends on (GRKERNSEC && X86 && GRKERNSEC_CONFIG_AUTO)
79210 + default GRKERNSEC_CONFIG_VIRT_NONE
79211 + help
79212 +
79213 +config GRKERNSEC_CONFIG_VIRT_NONE
79214 + bool "None"
79215 + help
79216 + Choose this option if this kernel will be run on bare metal.
79217 +
79218 +config GRKERNSEC_CONFIG_VIRT_GUEST
79219 + bool "Guest"
79220 + help
79221 + Choose this option if this kernel will be run as a VM guest.
79222 +
79223 +config GRKERNSEC_CONFIG_VIRT_HOST
79224 + bool "Host"
79225 + help
79226 + Choose this option if this kernel will be run as a VM host.
79227 +
79228 +endchoice
79229 +
79230 +choice
79231 + prompt "Virtualization Hardware"
79232 + depends on (GRKERNSEC && X86 && GRKERNSEC_CONFIG_AUTO && (GRKERNSEC_CONFIG_VIRT_GUEST || GRKERNSEC_CONFIG_VIRT_HOST))
79233 + help
79234 +
79235 +config GRKERNSEC_CONFIG_VIRT_EPT
79236 + bool "EPT/RVI Processor Support"
79237 + depends on X86
79238 + help
79239 + Choose this option if your CPU supports the EPT or RVI features of 2nd-gen
79240 + hardware virtualization. This allows for additional kernel hardening protections
79241 + to operate without additional performance impact.
79242 +
79243 + To see if your Intel processor supports EPT, see:
79244 + http://ark.intel.com/Products/VirtualizationTechnology
79245 + (Most Core i3/5/7 support EPT)
79246 +
79247 + To see if your AMD processor supports RVI, see:
79248 + http://support.amd.com/us/kbarticles/Pages/GPU120AMDRVICPUsHyperVWin8.aspx
79249 +
79250 +config GRKERNSEC_CONFIG_VIRT_SOFT
79251 + bool "First-gen/No Hardware Virtualization"
79252 + help
79253 + Choose this option if you use an Atom/Pentium/Core 2 processor that either doesn't
79254 + support hardware virtualization or doesn't support the EPT/RVI extensions.
79255 +
79256 +endchoice
79257 +
79258 +choice
79259 + prompt "Virtualization Software"
79260 + depends on (GRKERNSEC && GRKERNSEC_CONFIG_AUTO && (GRKERNSEC_CONFIG_VIRT_GUEST || GRKERNSEC_CONFIG_VIRT_HOST))
79261 + help
79262 +
79263 +config GRKERNSEC_CONFIG_VIRT_XEN
79264 + bool "Xen"
79265 + help
79266 + Choose this option if this kernel is running as a Xen guest or host.
79267 +
79268 +config GRKERNSEC_CONFIG_VIRT_VMWARE
79269 + bool "VMWare"
79270 + help
79271 + Choose this option if this kernel is running as a VMWare guest or host.
79272 +
79273 +config GRKERNSEC_CONFIG_VIRT_KVM
79274 + bool "KVM"
79275 + help
79276 + Choose this option if this kernel is running as a KVM guest or host.
79277 +
79278 +config GRKERNSEC_CONFIG_VIRT_VIRTUALBOX
79279 + bool "VirtualBox"
79280 + help
79281 + Choose this option if this kernel is running as a VirtualBox guest or host.
79282 +
79283 +endchoice
79284 +
79285 +choice
79286 + prompt "Required Priorities"
79287 + depends on (GRKERNSEC && GRKERNSEC_CONFIG_AUTO)
79288 + default GRKERNSEC_CONFIG_PRIORITY_PERF
79289 + help
79290 +
79291 +config GRKERNSEC_CONFIG_PRIORITY_PERF
79292 + bool "Performance"
79293 + help
79294 + Choose this option if performance is of highest priority for this deployment
79295 + of grsecurity. Features like UDEREF on a 64bit kernel, kernel stack clearing,
79296 + and freed memory sanitizing will be disabled.
79297 +
79298 +config GRKERNSEC_CONFIG_PRIORITY_SECURITY
79299 + bool "Security"
79300 + help
79301 + Choose this option if security is of highest priority for this deployment of
79302 + grsecurity. UDEREF, kernel stack clearing, and freed memory sanitizing will
79303 + be enabled for this kernel. In a worst-case scenario, these features can
79304 + introduce a 20% performance hit (UDEREF on x64 contributing half of this hit).
79305 +
79306 +endchoice
79307 +
79308 +menu "Default Special Groups"
79309 +depends on (GRKERNSEC && GRKERNSEC_CONFIG_AUTO)
79310 +
79311 +config GRKERNSEC_PROC_GID
79312 + int "GID exempted from /proc restrictions"
79313 + default 1001
79314 + help
79315 + Setting this GID determines which group will be exempted from
79316 + grsecurity's /proc restrictions, allowing users of the specified
79317 + group to view network statistics and the existence of other users'
79318 + processes on the system.
79319 +
79320 +config GRKERNSEC_TPE_GID
79321 + int "GID for untrusted users"
79322 + depends on GRKERNSEC_CONFIG_SERVER
79323 + default 1005
79324 + help
79325 + Setting this GID determines which group untrusted users should
79326 + be added to. These users will be placed under grsecurity's Trusted Path
79327 + Execution mechanism, preventing them from executing their own binaries.
79328 + The users will only be able to execute binaries in directories owned and
79329 + writable only by the root user.
79330 +
79331 +config GRKERNSEC_SYMLINKOWN_GID
79332 + int "GID for users with kernel-enforced SymlinksIfOwnerMatch"
79333 + depends on GRKERNSEC_CONFIG_SERVER
79334 + default 1006
79335 + help
79336 + Setting this GID determines what group kernel-enforced
79337 + SymlinksIfOwnerMatch will be enabled for. If the sysctl option
79338 + is enabled, a sysctl option with name "symlinkown_gid" is created.
79339 +
79340 +
79341 +endmenu
79342 +
79343 +menu "Customize Configuration"
79344 +depends on GRKERNSEC
79345 +
79346 +menu "PaX"
79347 +
79348 +config PAX
79349 + bool "Enable various PaX features"
79350 + default y if GRKERNSEC_CONFIG_AUTO
79351 + depends on GRKERNSEC && (ALPHA || ARM || AVR32 || IA64 || MIPS || PARISC || PPC || SPARC || X86)
79352 + help
79353 + This allows you to enable various PaX features. PaX adds
79354 + intrusion prevention mechanisms to the kernel that reduce
79355 + the risks posed by exploitable memory corruption bugs.
79356 +
79357 +menu "PaX Control"
79358 + depends on PAX
79359 +
79360 +config PAX_SOFTMODE
79361 + bool 'Support soft mode'
79362 + help
79363 + Enabling this option will allow you to run PaX in soft mode, that
79364 + is, PaX features will not be enforced by default, only on executables
79365 + marked explicitly. You must also enable PT_PAX_FLAGS or XATTR_PAX_FLAGS
79366 + support as they are the only way to mark executables for soft mode use.
79367 +
79368 + Soft mode can be activated by using the "pax_softmode=1" kernel command
79369 + line option on boot. Furthermore you can control various PaX features
79370 + at runtime via the entries in /proc/sys/kernel/pax.
79371 +
79372 +config PAX_EI_PAX
79373 + bool 'Use legacy ELF header marking'
79374 + default y if GRKERNSEC_CONFIG_AUTO
79375 + help
79376 + Enabling this option will allow you to control PaX features on
79377 + a per executable basis via the 'chpax' utility available at
79378 + http://pax.grsecurity.net/. The control flags will be read from
79379 + an otherwise reserved part of the ELF header. This marking has
79380 + numerous drawbacks (no support for soft-mode, toolchain does not
79381 + know about the non-standard use of the ELF header) therefore it
79382 + has been deprecated in favour of PT_PAX_FLAGS and XATTR_PAX_FLAGS
79383 + support.
79384 +
79385 + Note that if you enable PT_PAX_FLAGS or XATTR_PAX_FLAGS marking
79386 + support as well, they will override the legacy EI_PAX marks.
79387 +
79388 + If you enable none of the marking options then all applications
79389 + will run with PaX enabled on them by default.
79390 +
79391 +config PAX_PT_PAX_FLAGS
79392 + bool 'Use ELF program header marking'
79393 + default y if GRKERNSEC_CONFIG_AUTO
79394 + help
79395 + Enabling this option will allow you to control PaX features on
79396 + a per executable basis via the 'paxctl' utility available at
79397 + http://pax.grsecurity.net/. The control flags will be read from
79398 + a PaX specific ELF program header (PT_PAX_FLAGS). This marking
79399 + has the benefits of supporting both soft mode and being fully
79400 + integrated into the toolchain (the binutils patch is available
79401 + from http://pax.grsecurity.net).
79402 +
79403 + Note that if you enable the legacy EI_PAX marking support as well,
79404 + the EI_PAX marks will be overridden by the PT_PAX_FLAGS marks.
79405 +
79406 + If you enable both PT_PAX_FLAGS and XATTR_PAX_FLAGS support then you
79407 + must make sure that the marks are the same if a binary has both marks.
79408 +
79409 + If you enable none of the marking options then all applications
79410 + will run with PaX enabled on them by default.
79411 +
79412 +config PAX_XATTR_PAX_FLAGS
79413 + bool 'Use filesystem extended attributes marking'
79414 + default y if GRKERNSEC_CONFIG_AUTO
79415 + select CIFS_XATTR if CIFS
79416 + select EXT2_FS_XATTR if EXT2_FS
79417 + select EXT3_FS_XATTR if EXT3_FS
79418 + select EXT4_FS_XATTR if EXT4_FS
79419 + select JFFS2_FS_XATTR if JFFS2_FS
79420 + select REISERFS_FS_XATTR if REISERFS_FS
79421 + select SQUASHFS_XATTR if SQUASHFS
79422 + select TMPFS_XATTR if TMPFS
79423 + select UBIFS_FS_XATTR if UBIFS_FS
79424 + help
79425 + Enabling this option will allow you to control PaX features on
79426 + a per executable basis via the 'setfattr' utility. The control
79427 + flags will be read from the user.pax.flags extended attribute of
79428 + the file. This marking has the benefit of supporting binary-only
79429 + applications that self-check themselves (e.g., skype) and would
79430 + not tolerate chpax/paxctl changes. The main drawback is that
79431 + extended attributes are not supported by some filesystems (e.g.,
79432 + isofs, udf, vfat) so copying files through such filesystems will
79433 + lose the extended attributes and these PaX markings.
79434 +
79435 + Note that if you enable the legacy EI_PAX marking support as well,
79436 + the EI_PAX marks will be overridden by the XATTR_PAX_FLAGS marks.
79437 +
79438 + If you enable both PT_PAX_FLAGS and XATTR_PAX_FLAGS support then you
79439 + must make sure that the marks are the same if a binary has both marks.
79440 +
79441 + If you enable none of the marking options then all applications
79442 + will run with PaX enabled on them by default.
79443 +
79444 +choice
79445 + prompt 'MAC system integration'
79446 + default PAX_HAVE_ACL_FLAGS
79447 + help
79448 + Mandatory Access Control systems have the option of controlling
79449 + PaX flags on a per executable basis, choose the method supported
79450 + by your particular system.
79451 +
79452 + - "none": if your MAC system does not interact with PaX,
79453 + - "direct": if your MAC system defines pax_set_initial_flags() itself,
79454 + - "hook": if your MAC system uses the pax_set_initial_flags_func callback.
79455 +
79456 + NOTE: this option is for developers/integrators only.
79457 +
79458 + config PAX_NO_ACL_FLAGS
79459 + bool 'none'
79460 +
79461 + config PAX_HAVE_ACL_FLAGS
79462 + bool 'direct'
79463 +
79464 + config PAX_HOOK_ACL_FLAGS
79465 + bool 'hook'
79466 +endchoice
79467 +
79468 +endmenu
79469 +
79470 +menu "Non-executable pages"
79471 + depends on PAX
79472 +
79473 +config PAX_NOEXEC
79474 + bool "Enforce non-executable pages"
79475 + default y if GRKERNSEC_CONFIG_AUTO
79476 + depends on ALPHA || (ARM && (CPU_V6 || CPU_V7)) || IA64 || MIPS || PARISC || PPC || S390 || SPARC || X86
79477 + help
79478 + By design some architectures do not allow for protecting memory
79479 + pages against execution or even if they do, Linux does not make
79480 + use of this feature. In practice this means that if a page is
79481 + readable (such as the stack or heap) it is also executable.
79482 +
79483 + There is a well known exploit technique that makes use of this
79484 + fact and a common programming mistake where an attacker can
79485 + introduce code of his choice somewhere in the attacked program's
79486 + memory (typically the stack or the heap) and then execute it.
79487 +
79488 + If the attacked program was running with different (typically
79489 + higher) privileges than that of the attacker, then he can elevate
79490 + his own privilege level (e.g. get a root shell, write to files for
79491 + which he does not have write access to, etc).
79492 +
79493 + Enabling this option will let you choose from various features
79494 + that prevent the injection and execution of 'foreign' code in
79495 + a program.
79496 +
79497 + This will also break programs that rely on the old behaviour and
79498 + expect that dynamically allocated memory via the malloc() family
79499 + of functions is executable (which it is not). Notable examples
79500 + are the XFree86 4.x server, the java runtime and wine.
79501 +
79502 +config PAX_PAGEEXEC
79503 + bool "Paging based non-executable pages"
79504 + default y if GRKERNSEC_CONFIG_AUTO
79505 + 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)
79506 + select S390_SWITCH_AMODE if S390
79507 + select S390_EXEC_PROTECT if S390
79508 + select ARCH_TRACK_EXEC_LIMIT if X86_32
79509 + help
79510 + This implementation is based on the paging feature of the CPU.
79511 + On i386 without hardware non-executable bit support there is a
79512 + variable but usually low performance impact, however on Intel's
79513 + P4 core based CPUs it is very high so you should not enable this
79514 + for kernels meant to be used on such CPUs.
79515 +
79516 + On alpha, avr32, ia64, parisc, sparc, sparc64, x86_64 and i386
79517 + with hardware non-executable bit support there is no performance
79518 + impact, on ppc the impact is negligible.
79519 +
79520 + Note that several architectures require various emulations due to
79521 + badly designed userland ABIs, this will cause a performance impact
79522 + but will disappear as soon as userland is fixed. For example, ppc
79523 + userland MUST have been built with secure-plt by a recent toolchain.
79524 +
79525 +config PAX_SEGMEXEC
79526 + bool "Segmentation based non-executable pages"
79527 + default y if GRKERNSEC_CONFIG_AUTO
79528 + depends on PAX_NOEXEC && X86_32
79529 + help
79530 + This implementation is based on the segmentation feature of the
79531 + CPU and has a very small performance impact, however applications
79532 + will be limited to a 1.5 GB address space instead of the normal
79533 + 3 GB.
79534 +
79535 +config PAX_EMUTRAMP
79536 + bool "Emulate trampolines" if (PAX_PAGEEXEC || PAX_SEGMEXEC) && (PARISC || X86)
79537 + default y if PARISC
79538 + help
79539 + There are some programs and libraries that for one reason or
79540 + another attempt to execute special small code snippets from
79541 + non-executable memory pages. Most notable examples are the
79542 + signal handler return code generated by the kernel itself and
79543 + the GCC trampolines.
79544 +
79545 + If you enabled CONFIG_PAX_PAGEEXEC or CONFIG_PAX_SEGMEXEC then
79546 + such programs will no longer work under your kernel.
79547 +
79548 + As a remedy you can say Y here and use the 'chpax' or 'paxctl'
79549 + utilities to enable trampoline emulation for the affected programs
79550 + yet still have the protection provided by the non-executable pages.
79551 +
79552 + On parisc you MUST enable this option and EMUSIGRT as well, otherwise
79553 + your system will not even boot.
79554 +
79555 + Alternatively you can say N here and use the 'chpax' or 'paxctl'
79556 + utilities to disable CONFIG_PAX_PAGEEXEC and CONFIG_PAX_SEGMEXEC
79557 + for the affected files.
79558 +
79559 + NOTE: enabling this feature *may* open up a loophole in the
79560 + protection provided by non-executable pages that an attacker
79561 + could abuse. Therefore the best solution is to not have any
79562 + files on your system that would require this option. This can
79563 + be achieved by not using libc5 (which relies on the kernel
79564 + signal handler return code) and not using or rewriting programs
79565 + that make use of the nested function implementation of GCC.
79566 + Skilled users can just fix GCC itself so that it implements
79567 + nested function calls in a way that does not interfere with PaX.
79568 +
79569 +config PAX_EMUSIGRT
79570 + bool "Automatically emulate sigreturn trampolines"
79571 + depends on PAX_EMUTRAMP && PARISC
79572 + default y
79573 + help
79574 + Enabling this option will have the kernel automatically detect
79575 + and emulate signal return trampolines executing on the stack
79576 + that would otherwise lead to task termination.
79577 +
79578 + This solution is intended as a temporary one for users with
79579 + legacy versions of libc (libc5, glibc 2.0, uClibc before 0.9.17,
79580 + Modula-3 runtime, etc) or executables linked to such, basically
79581 + everything that does not specify its own SA_RESTORER function in
79582 + normal executable memory like glibc 2.1+ does.
79583 +
79584 + On parisc you MUST enable this option, otherwise your system will
79585 + not even boot.
79586 +
79587 + NOTE: this feature cannot be disabled on a per executable basis
79588 + and since it *does* open up a loophole in the protection provided
79589 + by non-executable pages, the best solution is to not have any
79590 + files on your system that would require this option.
79591 +
79592 +config PAX_MPROTECT
79593 + bool "Restrict mprotect()"
79594 + default y if GRKERNSEC_CONFIG_AUTO
79595 + depends on (PAX_PAGEEXEC || PAX_SEGMEXEC)
79596 + help
79597 + Enabling this option will prevent programs from
79598 + - changing the executable status of memory pages that were
79599 + not originally created as executable,
79600 + - making read-only executable pages writable again,
79601 + - creating executable pages from anonymous memory,
79602 + - making read-only-after-relocations (RELRO) data pages writable again.
79603 +
79604 + You should say Y here to complete the protection provided by
79605 + the enforcement of non-executable pages.
79606 +
79607 + NOTE: you can use the 'chpax' or 'paxctl' utilities to control
79608 + this feature on a per file basis.
79609 +
79610 +config PAX_MPROTECT_COMPAT
79611 + bool "Use legacy/compat protection demoting (read help)"
79612 + default y if (GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_DESKTOP)
79613 + depends on PAX_MPROTECT
79614 + help
79615 + The current implementation of PAX_MPROTECT denies RWX allocations/mprotects
79616 + by sending the proper error code to the application. For some broken
79617 + userland, this can cause problems with Python or other applications. The
79618 + current implementation however allows for applications like clamav to
79619 + detect if JIT compilation/execution is allowed and to fall back gracefully
79620 + to an interpreter-based mode if it does not. While we encourage everyone
79621 + to use the current implementation as-is and push upstream to fix broken
79622 + userland (note that the RWX logging option can assist with this), in some
79623 + environments this may not be possible. Having to disable MPROTECT
79624 + completely on certain binaries reduces the security benefit of PaX,
79625 + so this option is provided for those environments to revert to the old
79626 + behavior.
79627 +
79628 +config PAX_ELFRELOCS
79629 + bool "Allow ELF text relocations (read help)"
79630 + depends on PAX_MPROTECT
79631 + default n
79632 + help
79633 + Non-executable pages and mprotect() restrictions are effective
79634 + in preventing the introduction of new executable code into an
79635 + attacked task's address space. There remain only two venues
79636 + for this kind of attack: if the attacker can execute already
79637 + existing code in the attacked task then he can either have it
79638 + create and mmap() a file containing his code or have it mmap()
79639 + an already existing ELF library that does not have position
79640 + independent code in it and use mprotect() on it to make it
79641 + writable and copy his code there. While protecting against
79642 + the former approach is beyond PaX, the latter can be prevented
79643 + by having only PIC ELF libraries on one's system (which do not
79644 + need to relocate their code). If you are sure this is your case,
79645 + as is the case with all modern Linux distributions, then leave
79646 + this option disabled. You should say 'n' here.
79647 +
79648 +config PAX_ETEXECRELOCS
79649 + bool "Allow ELF ET_EXEC text relocations"
79650 + depends on PAX_MPROTECT && (ALPHA || IA64 || PARISC)
79651 + select PAX_ELFRELOCS
79652 + default y
79653 + help
79654 + On some architectures there are incorrectly created applications
79655 + that require text relocations and would not work without enabling
79656 + this option. If you are an alpha, ia64 or parisc user, you should
79657 + enable this option and disable it once you have made sure that
79658 + none of your applications need it.
79659 +
79660 +config PAX_EMUPLT
79661 + bool "Automatically emulate ELF PLT"
79662 + depends on PAX_MPROTECT && (ALPHA || PARISC || SPARC)
79663 + default y
79664 + help
79665 + Enabling this option will have the kernel automatically detect
79666 + and emulate the Procedure Linkage Table entries in ELF files.
79667 + On some architectures such entries are in writable memory, and
79668 + become non-executable leading to task termination. Therefore
79669 + it is mandatory that you enable this option on alpha, parisc,
79670 + sparc and sparc64, otherwise your system would not even boot.
79671 +
79672 + NOTE: this feature *does* open up a loophole in the protection
79673 + provided by the non-executable pages, therefore the proper
79674 + solution is to modify the toolchain to produce a PLT that does
79675 + not need to be writable.
79676 +
79677 +config PAX_DLRESOLVE
79678 + bool 'Emulate old glibc resolver stub'
79679 + depends on PAX_EMUPLT && SPARC
79680 + default n
79681 + help
79682 + This option is needed if userland has an old glibc (before 2.4)
79683 + that puts a 'save' instruction into the runtime generated resolver
79684 + stub that needs special emulation.
79685 +
79686 +config PAX_KERNEXEC
79687 + bool "Enforce non-executable kernel pages"
79688 + default y if GRKERNSEC_CONFIG_AUTO && (GRKERNSEC_CONFIG_VIRT_NONE || (GRKERNSEC_CONFIG_VIRT_EPT && GRKERNSEC_CONFIG_VIRT_GUEST) || (GRKERNSEC_CONFIG_VIRT_EPT && GRKERNSEC_CONFIG_VIRT_KVM))
79689 + depends on (PPC || X86) && (!X86_32 || X86_WP_WORKS_OK) && !XEN
79690 + select PAX_PER_CPU_PGD if X86_64 || (X86_32 && X86_PAE)
79691 + select PAX_KERNEXEC_PLUGIN if X86_64
79692 + help
79693 + This is the kernel land equivalent of PAGEEXEC and MPROTECT,
79694 + that is, enabling this option will make it harder to inject
79695 + and execute 'foreign' code in kernel memory itself.
79696 +
79697 + Note that on x86_64 kernels there is a known regression when
79698 + this feature and KVM/VMX are both enabled in the host kernel.
79699 +
79700 +choice
79701 + prompt "Return Address Instrumentation Method"
79702 + default PAX_KERNEXEC_PLUGIN_METHOD_BTS
79703 + depends on PAX_KERNEXEC_PLUGIN
79704 + help
79705 + Select the method used to instrument function pointer dereferences.
79706 + Note that binary modules cannot be instrumented by this approach.
79707 +
79708 + config PAX_KERNEXEC_PLUGIN_METHOD_BTS
79709 + bool "bts"
79710 + help
79711 + This method is compatible with binary only modules but has
79712 + a higher runtime overhead.
79713 +
79714 + config PAX_KERNEXEC_PLUGIN_METHOD_OR
79715 + bool "or"
79716 + depends on !PARAVIRT
79717 + help
79718 + This method is incompatible with binary only modules but has
79719 + a lower runtime overhead.
79720 +endchoice
79721 +
79722 +config PAX_KERNEXEC_PLUGIN_METHOD
79723 + string
79724 + default "bts" if PAX_KERNEXEC_PLUGIN_METHOD_BTS
79725 + default "or" if PAX_KERNEXEC_PLUGIN_METHOD_OR
79726 + default ""
79727 +
79728 +config PAX_KERNEXEC_MODULE_TEXT
79729 + int "Minimum amount of memory reserved for module code"
79730 + default "4" if (!GRKERNSEC_CONFIG_AUTO || GRKERNSEC_CONFIG_SERVER)
79731 + default "12" if (GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_DESKTOP)
79732 + depends on PAX_KERNEXEC && X86_32 && MODULES
79733 + help
79734 + Due to implementation details the kernel must reserve a fixed
79735 + amount of memory for module code at compile time that cannot be
79736 + changed at runtime. Here you can specify the minimum amount
79737 + in MB that will be reserved. Due to the same implementation
79738 + details this size will always be rounded up to the next 2/4 MB
79739 + boundary (depends on PAE) so the actually available memory for
79740 + module code will usually be more than this minimum.
79741 +
79742 + The default 4 MB should be enough for most users but if you have
79743 + an excessive number of modules (e.g., most distribution configs
79744 + compile many drivers as modules) or use huge modules such as
79745 + nvidia's kernel driver, you will need to adjust this amount.
79746 + A good rule of thumb is to look at your currently loaded kernel
79747 + modules and add up their sizes.
79748 +
79749 +endmenu
79750 +
79751 +menu "Address Space Layout Randomization"
79752 + depends on PAX
79753 +
79754 +config PAX_ASLR
79755 + bool "Address Space Layout Randomization"
79756 + default y if GRKERNSEC_CONFIG_AUTO
79757 + help
79758 + Many if not most exploit techniques rely on the knowledge of
79759 + certain addresses in the attacked program. The following options
79760 + will allow the kernel to apply a certain amount of randomization
79761 + to specific parts of the program thereby forcing an attacker to
79762 + guess them in most cases. Any failed guess will most likely crash
79763 + the attacked program which allows the kernel to detect such attempts
79764 + and react on them. PaX itself provides no reaction mechanisms,
79765 + instead it is strongly encouraged that you make use of Nergal's
79766 + segvguard (ftp://ftp.pl.openwall.com/misc/segvguard/) or grsecurity's
79767 + (http://www.grsecurity.net/) built-in crash detection features or
79768 + develop one yourself.
79769 +
79770 + By saying Y here you can choose to randomize the following areas:
79771 + - top of the task's kernel stack
79772 + - top of the task's userland stack
79773 + - base address for mmap() requests that do not specify one
79774 + (this includes all libraries)
79775 + - base address of the main executable
79776 +
79777 + It is strongly recommended to say Y here as address space layout
79778 + randomization has negligible impact on performance yet it provides
79779 + a very effective protection.
79780 +
79781 + NOTE: you can use the 'chpax' or 'paxctl' utilities to control
79782 + this feature on a per file basis.
79783 +
79784 +config PAX_RANDKSTACK
79785 + bool "Randomize kernel stack base"
79786 + default y if GRKERNSEC_CONFIG_AUTO
79787 + depends on X86_TSC && X86
79788 + help
79789 + By saying Y here the kernel will randomize every task's kernel
79790 + stack on every system call. This will not only force an attacker
79791 + to guess it but also prevent him from making use of possible
79792 + leaked information about it.
79793 +
79794 + Since the kernel stack is a rather scarce resource, randomization
79795 + may cause unexpected stack overflows, therefore you should very
79796 + carefully test your system. Note that once enabled in the kernel
79797 + configuration, this feature cannot be disabled on a per file basis.
79798 +
79799 +config PAX_RANDUSTACK
79800 + bool "Randomize user stack base"
79801 + default y if GRKERNSEC_CONFIG_AUTO
79802 + depends on PAX_ASLR
79803 + help
79804 + By saying Y here the kernel will randomize every task's userland
79805 + stack. The randomization is done in two steps where the second
79806 + one may apply a big amount of shift to the top of the stack and
79807 + cause problems for programs that want to use lots of memory (more
79808 + than 2.5 GB if SEGMEXEC is not active, or 1.25 GB when it is).
79809 + For this reason the second step can be controlled by 'chpax' or
79810 + 'paxctl' on a per file basis.
79811 +
79812 +config PAX_RANDMMAP
79813 + bool "Randomize mmap() base"
79814 + default y if GRKERNSEC_CONFIG_AUTO
79815 + depends on PAX_ASLR
79816 + help
79817 + By saying Y here the kernel will use a randomized base address for
79818 + mmap() requests that do not specify one themselves. As a result
79819 + all dynamically loaded libraries will appear at random addresses
79820 + and therefore be harder to exploit by a technique where an attacker
79821 + attempts to execute library code for his purposes (e.g. spawn a
79822 + shell from an exploited program that is running at an elevated
79823 + privilege level).
79824 +
79825 + Furthermore, if a program is relinked as a dynamic ELF file, its
79826 + base address will be randomized as well, completing the full
79827 + randomization of the address space layout. Attacking such programs
79828 + becomes a guess game. You can find an example of doing this at
79829 + http://pax.grsecurity.net/et_dyn.tar.gz and practical samples at
79830 + http://www.grsecurity.net/grsec-gcc-specs.tar.gz .
79831 +
79832 + NOTE: you can use the 'chpax' or 'paxctl' utilities to control this
79833 + feature on a per file basis.
79834 +
79835 +endmenu
79836 +
79837 +menu "Miscellaneous hardening features"
79838 +
79839 +config PAX_MEMORY_SANITIZE
79840 + bool "Sanitize all freed memory"
79841 + default y if (GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_PRIORITY_SECURITY)
79842 + depends on !HIBERNATION
79843 + help
79844 + By saying Y here the kernel will erase memory pages as soon as they
79845 + are freed. This in turn reduces the lifetime of data stored in the
79846 + pages, making it less likely that sensitive information such as
79847 + passwords, cryptographic secrets, etc stay in memory for too long.
79848 +
79849 + This is especially useful for programs whose runtime is short, long
79850 + lived processes and the kernel itself benefit from this as long as
79851 + they operate on whole memory pages and ensure timely freeing of pages
79852 + that may hold sensitive information.
79853 +
79854 + The tradeoff is performance impact, on a single CPU system kernel
79855 + compilation sees a 3% slowdown, other systems and workloads may vary
79856 + and you are advised to test this feature on your expected workload
79857 + before deploying it.
79858 +
79859 + Note that this feature does not protect data stored in live pages,
79860 + e.g., process memory swapped to disk may stay there for a long time.
79861 +
79862 +config PAX_MEMORY_STACKLEAK
79863 + bool "Sanitize kernel stack"
79864 + default y if (GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_PRIORITY_SECURITY)
79865 + depends on X86
79866 + help
79867 + By saying Y here the kernel will erase the kernel stack before it
79868 + returns from a system call. This in turn reduces the information
79869 + that a kernel stack leak bug can reveal.
79870 +
79871 + Note that such a bug can still leak information that was put on
79872 + the stack by the current system call (the one eventually triggering
79873 + the bug) but traces of earlier system calls on the kernel stack
79874 + cannot leak anymore.
79875 +
79876 + The tradeoff is performance impact: on a single CPU system kernel
79877 + compilation sees a 1% slowdown, other systems and workloads may vary
79878 + and you are advised to test this feature on your expected workload
79879 + before deploying it.
79880 +
79881 + Note: full support for this feature requires gcc with plugin support
79882 + so make sure your compiler is at least gcc 4.5.0. Using older gcc
79883 + versions means that functions with large enough stack frames may
79884 + leave uninitialized memory behind that may be exposed to a later
79885 + syscall leaking the stack.
79886 +
79887 +config PAX_MEMORY_UDEREF
79888 + bool "Prevent invalid userland pointer dereference"
79889 + default y if GRKERNSEC_CONFIG_AUTO && (X86_32 || (X86_64 && GRKERNSEC_CONFIG_PRIORITY_SECURITY)) && (GRKERNSEC_CONFIG_VIRT_NONE || GRKERNSEC_CONFIG_VIRT_EPT)
79890 + depends on X86 && !UML_X86 && !XEN
79891 + select PAX_PER_CPU_PGD if X86_64
79892 + help
79893 + By saying Y here the kernel will be prevented from dereferencing
79894 + userland pointers in contexts where the kernel expects only kernel
79895 + pointers. This is both a useful runtime debugging feature and a
79896 + security measure that prevents exploiting a class of kernel bugs.
79897 +
79898 + The tradeoff is that some virtualization solutions may experience
79899 + a huge slowdown and therefore you should not enable this feature
79900 + for kernels meant to run in such environments. Whether a given VM
79901 + solution is affected or not is best determined by simply trying it
79902 + out, the performance impact will be obvious right on boot as this
79903 + mechanism engages from very early on. A good rule of thumb is that
79904 + VMs running on CPUs without hardware virtualization support (i.e.,
79905 + the majority of IA-32 CPUs) will likely experience the slowdown.
79906 +
79907 +config PAX_REFCOUNT
79908 + bool "Prevent various kernel object reference counter overflows"
79909 + default y if GRKERNSEC_CONFIG_AUTO
79910 + depends on GRKERNSEC && ((ARM && (CPU_32v6 || CPU_32v6K || CPU_32v7)) || SPARC64 || X86)
79911 + help
79912 + By saying Y here the kernel will detect and prevent overflowing
79913 + various (but not all) kinds of object reference counters. Such
79914 + overflows can normally occur due to bugs only and are often, if
79915 + not always, exploitable.
79916 +
79917 + The tradeoff is that data structures protected by an overflowed
79918 + refcount will never be freed and therefore will leak memory. Note
79919 + that this leak also happens even without this protection but in
79920 + that case the overflow can eventually trigger the freeing of the
79921 + data structure while it is still being used elsewhere, resulting
79922 + in the exploitable situation that this feature prevents.
79923 +
79924 + Since this has a negligible performance impact, you should enable
79925 + this feature.
79926 +
79927 +config PAX_USERCOPY
79928 + bool "Harden heap object copies between kernel and userland"
79929 + default y if GRKERNSEC_CONFIG_AUTO
79930 + depends on X86 || PPC || SPARC || ARM
79931 + depends on GRKERNSEC && (SLAB || SLUB || SLOB)
79932 + select PAX_USERCOPY_SLABS
79933 + help
79934 + By saying Y here the kernel will enforce the size of heap objects
79935 + when they are copied in either direction between the kernel and
79936 + userland, even if only a part of the heap object is copied.
79937 +
79938 + Specifically, this checking prevents information leaking from the
79939 + kernel heap during kernel to userland copies (if the kernel heap
79940 + object is otherwise fully initialized) and prevents kernel heap
79941 + overflows during userland to kernel copies.
79942 +
79943 + Note that the current implementation provides the strictest bounds
79944 + checks for the SLUB allocator.
79945 +
79946 + Enabling this option also enables per-slab cache protection against
79947 + data in a given cache being copied into/out of via userland
79948 + accessors. Though the whitelist of regions will be reduced over
79949 + time, it notably protects important data structures like task structs.
79950 +
79951 + If frame pointers are enabled on x86, this option will also restrict
79952 + copies into and out of the kernel stack to local variables within a
79953 + single frame.
79954 +
79955 + Since this has a negligible performance impact, you should enable
79956 + this feature.
79957 +
79958 +config PAX_SIZE_OVERFLOW
79959 + bool "Prevent various integer overflows in function size parameters"
79960 + default y if GRKERNSEC_CONFIG_AUTO
79961 + depends on X86
79962 + help
79963 + By saying Y here the kernel recomputes expressions of function
79964 + arguments marked by a size_overflow attribute with double integer
79965 + precision (DImode/TImode for 32/64 bit integer types).
79966 +
79967 + The recomputed argument is checked against INT_MAX and an event
79968 + is logged on overflow and the triggering process is killed.
79969 +
79970 + Homepage:
79971 + http://www.grsecurity.net/~ephox/overflow_plugin/
79972 +
79973 +config PAX_LATENT_ENTROPY
79974 + bool "Generate some entropy during boot"
79975 + default y if GRKERNSEC_CONFIG_AUTO
79976 + help
79977 + By saying Y here the kernel will instrument early boot code to
79978 + extract some entropy from both original and artificially created
79979 + program state. This will help especially embedded systems where
79980 + there is little 'natural' source of entropy normally. The cost
79981 + is some slowdown of the boot process.
79982 +
79983 + Note that entropy extracted this way is not cryptographically
79984 + secure!
79985 +
79986 +endmenu
79987 +
79988 +endmenu
79989 +
79990 +source grsecurity/Kconfig
79991 +
79992 +endmenu
79993 +
79994 +endmenu
79995 +
79996 source security/keys/Kconfig
79997
79998 config SECURITY_DMESG_RESTRICT
79999 @@ -103,7 +973,7 @@ config INTEL_TXT
80000 config LSM_MMAP_MIN_ADDR
80001 int "Low address space for LSM to protect from user allocation"
80002 depends on SECURITY && SECURITY_SELINUX
80003 - default 32768 if ARM
80004 + default 32768 if ALPHA || ARM || PARISC || SPARC32
80005 default 65536
80006 help
80007 This is the portion of low virtual memory which should be protected
80008 diff --git a/security/apparmor/lsm.c b/security/apparmor/lsm.c
80009 index 8ea39aa..8569ac5 100644
80010 --- a/security/apparmor/lsm.c
80011 +++ b/security/apparmor/lsm.c
80012 @@ -614,7 +614,7 @@ static int apparmor_task_setrlimit(struct task_struct *task,
80013 return error;
80014 }
80015
80016 -static struct security_operations apparmor_ops = {
80017 +static struct security_operations apparmor_ops __read_only = {
80018 .name = "apparmor",
80019
80020 .ptrace_access_check = apparmor_ptrace_access_check,
80021 diff --git a/security/commoncap.c b/security/commoncap.c
80022 index 6dbae46..d5611fd 100644
80023 --- a/security/commoncap.c
80024 +++ b/security/commoncap.c
80025 @@ -415,6 +415,32 @@ int get_vfs_caps_from_disk(const struct dentry *dentry, struct cpu_vfs_cap_data
80026 return 0;
80027 }
80028
80029 +/* returns:
80030 + 1 for suid privilege
80031 + 2 for sgid privilege
80032 + 3 for fscap privilege
80033 +*/
80034 +int is_privileged_binary(const struct dentry *dentry)
80035 +{
80036 + struct cpu_vfs_cap_data capdata;
80037 + struct inode *inode = dentry->d_inode;
80038 +
80039 + if (!inode || S_ISDIR(inode->i_mode))
80040 + return 0;
80041 +
80042 + if (inode->i_mode & S_ISUID)
80043 + return 1;
80044 + if ((inode->i_mode & (S_ISGID | S_IXGRP)) == (S_ISGID | S_IXGRP))
80045 + return 2;
80046 +
80047 + if (!get_vfs_caps_from_disk(dentry, &capdata)) {
80048 + if (!cap_isclear(capdata.inheritable) || !cap_isclear(capdata.permitted))
80049 + return 3;
80050 + }
80051 +
80052 + return 0;
80053 +}
80054 +
80055 /*
80056 * Attempt to get the on-exec apply capability sets for an executable file from
80057 * its xattrs and, if present, apply them to the proposed credentials being
80058 @@ -583,6 +609,9 @@ int cap_bprm_secureexec(struct linux_binprm *bprm)
80059 const struct cred *cred = current_cred();
80060 kuid_t root_uid = make_kuid(cred->user_ns, 0);
80061
80062 + if (gr_acl_enable_at_secure())
80063 + return 1;
80064 +
80065 if (!uid_eq(cred->uid, root_uid)) {
80066 if (bprm->cap_effective)
80067 return 1;
80068 diff --git a/security/integrity/ima/ima.h b/security/integrity/ima/ima.h
80069 index 3ccf7ac..d73ad64 100644
80070 --- a/security/integrity/ima/ima.h
80071 +++ b/security/integrity/ima/ima.h
80072 @@ -86,8 +86,8 @@ void ima_add_violation(struct inode *inode, const unsigned char *filename,
80073 extern spinlock_t ima_queue_lock;
80074
80075 struct ima_h_table {
80076 - atomic_long_t len; /* number of stored measurements in the list */
80077 - atomic_long_t violations;
80078 + atomic_long_unchecked_t len; /* number of stored measurements in the list */
80079 + atomic_long_unchecked_t violations;
80080 struct hlist_head queue[IMA_MEASURE_HTABLE_SIZE];
80081 };
80082 extern struct ima_h_table ima_htable;
80083 diff --git a/security/integrity/ima/ima_api.c b/security/integrity/ima/ima_api.c
80084 index 88a2788..581ab92 100644
80085 --- a/security/integrity/ima/ima_api.c
80086 +++ b/security/integrity/ima/ima_api.c
80087 @@ -75,7 +75,7 @@ void ima_add_violation(struct inode *inode, const unsigned char *filename,
80088 int result;
80089
80090 /* can overflow, only indicator */
80091 - atomic_long_inc(&ima_htable.violations);
80092 + atomic_long_inc_unchecked(&ima_htable.violations);
80093
80094 entry = kmalloc(sizeof(*entry), GFP_KERNEL);
80095 if (!entry) {
80096 diff --git a/security/integrity/ima/ima_fs.c b/security/integrity/ima/ima_fs.c
80097 index e1aa2b4..52027bf 100644
80098 --- a/security/integrity/ima/ima_fs.c
80099 +++ b/security/integrity/ima/ima_fs.c
80100 @@ -28,12 +28,12 @@
80101 static int valid_policy = 1;
80102 #define TMPBUFLEN 12
80103 static ssize_t ima_show_htable_value(char __user *buf, size_t count,
80104 - loff_t *ppos, atomic_long_t *val)
80105 + loff_t *ppos, atomic_long_unchecked_t *val)
80106 {
80107 char tmpbuf[TMPBUFLEN];
80108 ssize_t len;
80109
80110 - len = scnprintf(tmpbuf, TMPBUFLEN, "%li\n", atomic_long_read(val));
80111 + len = scnprintf(tmpbuf, TMPBUFLEN, "%li\n", atomic_long_read_unchecked(val));
80112 return simple_read_from_buffer(buf, count, ppos, tmpbuf, len);
80113 }
80114
80115 diff --git a/security/integrity/ima/ima_queue.c b/security/integrity/ima/ima_queue.c
80116 index 55a6271..ad829c3 100644
80117 --- a/security/integrity/ima/ima_queue.c
80118 +++ b/security/integrity/ima/ima_queue.c
80119 @@ -81,7 +81,7 @@ static int ima_add_digest_entry(struct ima_template_entry *entry)
80120 INIT_LIST_HEAD(&qe->later);
80121 list_add_tail_rcu(&qe->later, &ima_measurements);
80122
80123 - atomic_long_inc(&ima_htable.len);
80124 + atomic_long_inc_unchecked(&ima_htable.len);
80125 key = ima_hash_key(entry->digest);
80126 hlist_add_head_rcu(&qe->hnext, &ima_htable.queue[key]);
80127 return 0;
80128 diff --git a/security/keys/compat.c b/security/keys/compat.c
80129 index c92d42b..341e7ea 100644
80130 --- a/security/keys/compat.c
80131 +++ b/security/keys/compat.c
80132 @@ -44,7 +44,7 @@ long compat_keyctl_instantiate_key_iov(
80133 if (ret == 0)
80134 goto no_payload_free;
80135
80136 - ret = keyctl_instantiate_key_common(id, iov, ioc, ret, ringid);
80137 + ret = keyctl_instantiate_key_common(id, (const struct iovec __force_user *)iov, ioc, ret, ringid);
80138
80139 if (iov != iovstack)
80140 kfree(iov);
80141 diff --git a/security/keys/keyctl.c b/security/keys/keyctl.c
80142 index 0f5b3f0..b8d47c1 100644
80143 --- a/security/keys/keyctl.c
80144 +++ b/security/keys/keyctl.c
80145 @@ -966,7 +966,7 @@ static int keyctl_change_reqkey_auth(struct key *key)
80146 /*
80147 * Copy the iovec data from userspace
80148 */
80149 -static long copy_from_user_iovec(void *buffer, const struct iovec *iov,
80150 +static long copy_from_user_iovec(void *buffer, const struct iovec __user *iov,
80151 unsigned ioc)
80152 {
80153 for (; ioc > 0; ioc--) {
80154 @@ -988,7 +988,7 @@ static long copy_from_user_iovec(void *buffer, const struct iovec *iov,
80155 * If successful, 0 will be returned.
80156 */
80157 long keyctl_instantiate_key_common(key_serial_t id,
80158 - const struct iovec *payload_iov,
80159 + const struct iovec __user *payload_iov,
80160 unsigned ioc,
80161 size_t plen,
80162 key_serial_t ringid)
80163 @@ -1083,7 +1083,7 @@ long keyctl_instantiate_key(key_serial_t id,
80164 [0].iov_len = plen
80165 };
80166
80167 - return keyctl_instantiate_key_common(id, iov, 1, plen, ringid);
80168 + return keyctl_instantiate_key_common(id, (const struct iovec __force_user *)iov, 1, plen, ringid);
80169 }
80170
80171 return keyctl_instantiate_key_common(id, NULL, 0, 0, ringid);
80172 @@ -1116,7 +1116,7 @@ long keyctl_instantiate_key_iov(key_serial_t id,
80173 if (ret == 0)
80174 goto no_payload_free;
80175
80176 - ret = keyctl_instantiate_key_common(id, iov, ioc, ret, ringid);
80177 + ret = keyctl_instantiate_key_common(id, (const struct iovec __force_user *)iov, ioc, ret, ringid);
80178
80179 if (iov != iovstack)
80180 kfree(iov);
80181 diff --git a/security/keys/keyring.c b/security/keys/keyring.c
80182 index 7445875..262834f 100644
80183 --- a/security/keys/keyring.c
80184 +++ b/security/keys/keyring.c
80185 @@ -227,16 +227,16 @@ static long keyring_read(const struct key *keyring,
80186 ret = -EFAULT;
80187
80188 for (loop = 0; loop < klist->nkeys; loop++) {
80189 + key_serial_t serial;
80190 key = rcu_deref_link_locked(klist, loop,
80191 keyring);
80192 + serial = key->serial;
80193
80194 tmp = sizeof(key_serial_t);
80195 if (tmp > buflen)
80196 tmp = buflen;
80197
80198 - if (copy_to_user(buffer,
80199 - &key->serial,
80200 - tmp) != 0)
80201 + if (copy_to_user(buffer, &serial, tmp))
80202 goto error;
80203
80204 buflen -= tmp;
80205 diff --git a/security/min_addr.c b/security/min_addr.c
80206 index f728728..6457a0c 100644
80207 --- a/security/min_addr.c
80208 +++ b/security/min_addr.c
80209 @@ -14,6 +14,7 @@ unsigned long dac_mmap_min_addr = CONFIG_DEFAULT_MMAP_MIN_ADDR;
80210 */
80211 static void update_mmap_min_addr(void)
80212 {
80213 +#ifndef SPARC
80214 #ifdef CONFIG_LSM_MMAP_MIN_ADDR
80215 if (dac_mmap_min_addr > CONFIG_LSM_MMAP_MIN_ADDR)
80216 mmap_min_addr = dac_mmap_min_addr;
80217 @@ -22,6 +23,7 @@ static void update_mmap_min_addr(void)
80218 #else
80219 mmap_min_addr = dac_mmap_min_addr;
80220 #endif
80221 +#endif
80222 }
80223
80224 /*
80225 diff --git a/security/security.c b/security/security.c
80226 index 860aeb3..45765c0 100644
80227 --- a/security/security.c
80228 +++ b/security/security.c
80229 @@ -20,6 +20,7 @@
80230 #include <linux/ima.h>
80231 #include <linux/evm.h>
80232 #include <linux/fsnotify.h>
80233 +#include <linux/mm.h>
80234 #include <linux/mman.h>
80235 #include <linux/mount.h>
80236 #include <linux/personality.h>
80237 @@ -32,8 +33,8 @@
80238 static __initdata char chosen_lsm[SECURITY_NAME_MAX + 1] =
80239 CONFIG_DEFAULT_SECURITY;
80240
80241 -static struct security_operations *security_ops;
80242 -static struct security_operations default_security_ops = {
80243 +static struct security_operations *security_ops __read_only;
80244 +static struct security_operations default_security_ops __read_only = {
80245 .name = "default",
80246 };
80247
80248 @@ -74,7 +75,9 @@ int __init security_init(void)
80249
80250 void reset_security_ops(void)
80251 {
80252 + pax_open_kernel();
80253 security_ops = &default_security_ops;
80254 + pax_close_kernel();
80255 }
80256
80257 /* Save user chosen LSM */
80258 diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
80259 index db10db2..99a640f 100644
80260 --- a/security/selinux/hooks.c
80261 +++ b/security/selinux/hooks.c
80262 @@ -95,8 +95,6 @@
80263
80264 #define NUM_SEL_MNT_OPTS 5
80265
80266 -extern struct security_operations *security_ops;
80267 -
80268 /* SECMARK reference count */
80269 static atomic_t selinux_secmark_refcount = ATOMIC_INIT(0);
80270
80271 @@ -5511,7 +5509,7 @@ static int selinux_key_getsecurity(struct key *key, char **_buffer)
80272
80273 #endif
80274
80275 -static struct security_operations selinux_ops = {
80276 +static struct security_operations selinux_ops __read_only = {
80277 .name = "selinux",
80278
80279 .ptrace_access_check = selinux_ptrace_access_check,
80280 diff --git a/security/selinux/include/xfrm.h b/security/selinux/include/xfrm.h
80281 index c220f31..89fab3f 100644
80282 --- a/security/selinux/include/xfrm.h
80283 +++ b/security/selinux/include/xfrm.h
80284 @@ -50,7 +50,7 @@ int selinux_xfrm_decode_session(struct sk_buff *skb, u32 *sid, int ckall);
80285
80286 static inline void selinux_xfrm_notify_policyload(void)
80287 {
80288 - atomic_inc(&flow_cache_genid);
80289 + atomic_inc_unchecked(&flow_cache_genid);
80290 }
80291 #else
80292 static inline int selinux_xfrm_enabled(void)
80293 diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
80294 index ee0bb57..57fcd43 100644
80295 --- a/security/smack/smack_lsm.c
80296 +++ b/security/smack/smack_lsm.c
80297 @@ -3432,7 +3432,7 @@ static int smack_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
80298 return 0;
80299 }
80300
80301 -struct security_operations smack_ops = {
80302 +struct security_operations smack_ops __read_only = {
80303 .name = "smack",
80304
80305 .ptrace_access_check = smack_ptrace_access_check,
80306 diff --git a/security/tomoyo/tomoyo.c b/security/tomoyo/tomoyo.c
80307 index c2d04a5..e6a1aeb 100644
80308 --- a/security/tomoyo/tomoyo.c
80309 +++ b/security/tomoyo/tomoyo.c
80310 @@ -501,7 +501,7 @@ static int tomoyo_socket_sendmsg(struct socket *sock, struct msghdr *msg,
80311 * tomoyo_security_ops is a "struct security_operations" which is used for
80312 * registering TOMOYO.
80313 */
80314 -static struct security_operations tomoyo_security_ops = {
80315 +static struct security_operations tomoyo_security_ops __read_only = {
80316 .name = "tomoyo",
80317 .cred_alloc_blank = tomoyo_cred_alloc_blank,
80318 .cred_prepare = tomoyo_cred_prepare,
80319 diff --git a/security/yama/Kconfig b/security/yama/Kconfig
80320 index 51d6709..1f3dbe2 100644
80321 --- a/security/yama/Kconfig
80322 +++ b/security/yama/Kconfig
80323 @@ -1,6 +1,6 @@
80324 config SECURITY_YAMA
80325 bool "Yama support"
80326 - depends on SECURITY
80327 + depends on SECURITY && !GRKERNSEC
80328 select SECURITYFS
80329 select SECURITY_PATH
80330 default n
80331 diff --git a/sound/aoa/codecs/onyx.c b/sound/aoa/codecs/onyx.c
80332 index 270790d..c67dfcb 100644
80333 --- a/sound/aoa/codecs/onyx.c
80334 +++ b/sound/aoa/codecs/onyx.c
80335 @@ -54,7 +54,7 @@ struct onyx {
80336 spdif_locked:1,
80337 analog_locked:1,
80338 original_mute:2;
80339 - int open_count;
80340 + local_t open_count;
80341 struct codec_info *codec_info;
80342
80343 /* mutex serializes concurrent access to the device
80344 @@ -753,7 +753,7 @@ static int onyx_open(struct codec_info_item *cii,
80345 struct onyx *onyx = cii->codec_data;
80346
80347 mutex_lock(&onyx->mutex);
80348 - onyx->open_count++;
80349 + local_inc(&onyx->open_count);
80350 mutex_unlock(&onyx->mutex);
80351
80352 return 0;
80353 @@ -765,8 +765,7 @@ static int onyx_close(struct codec_info_item *cii,
80354 struct onyx *onyx = cii->codec_data;
80355
80356 mutex_lock(&onyx->mutex);
80357 - onyx->open_count--;
80358 - if (!onyx->open_count)
80359 + if (local_dec_and_test(&onyx->open_count))
80360 onyx->spdif_locked = onyx->analog_locked = 0;
80361 mutex_unlock(&onyx->mutex);
80362
80363 diff --git a/sound/aoa/codecs/onyx.h b/sound/aoa/codecs/onyx.h
80364 index ffd2025..df062c9 100644
80365 --- a/sound/aoa/codecs/onyx.h
80366 +++ b/sound/aoa/codecs/onyx.h
80367 @@ -11,6 +11,7 @@
80368 #include <linux/i2c.h>
80369 #include <asm/pmac_low_i2c.h>
80370 #include <asm/prom.h>
80371 +#include <asm/local.h>
80372
80373 /* PCM3052 register definitions */
80374
80375 diff --git a/sound/core/oss/pcm_oss.c b/sound/core/oss/pcm_oss.c
80376 index 08fde00..0bf641a 100644
80377 --- a/sound/core/oss/pcm_oss.c
80378 +++ b/sound/core/oss/pcm_oss.c
80379 @@ -1189,10 +1189,10 @@ snd_pcm_sframes_t snd_pcm_oss_write3(struct snd_pcm_substream *substream, const
80380 if (in_kernel) {
80381 mm_segment_t fs;
80382 fs = snd_enter_user();
80383 - ret = snd_pcm_lib_write(substream, (void __force __user *)ptr, frames);
80384 + ret = snd_pcm_lib_write(substream, (void __force_user *)ptr, frames);
80385 snd_leave_user(fs);
80386 } else {
80387 - ret = snd_pcm_lib_write(substream, (void __force __user *)ptr, frames);
80388 + ret = snd_pcm_lib_write(substream, (void __force_user *)ptr, frames);
80389 }
80390 if (ret != -EPIPE && ret != -ESTRPIPE)
80391 break;
80392 @@ -1234,10 +1234,10 @@ snd_pcm_sframes_t snd_pcm_oss_read3(struct snd_pcm_substream *substream, char *p
80393 if (in_kernel) {
80394 mm_segment_t fs;
80395 fs = snd_enter_user();
80396 - ret = snd_pcm_lib_read(substream, (void __force __user *)ptr, frames);
80397 + ret = snd_pcm_lib_read(substream, (void __force_user *)ptr, frames);
80398 snd_leave_user(fs);
80399 } else {
80400 - ret = snd_pcm_lib_read(substream, (void __force __user *)ptr, frames);
80401 + ret = snd_pcm_lib_read(substream, (void __force_user *)ptr, frames);
80402 }
80403 if (ret == -EPIPE) {
80404 if (runtime->status->state == SNDRV_PCM_STATE_DRAINING) {
80405 @@ -1337,7 +1337,7 @@ static ssize_t snd_pcm_oss_write2(struct snd_pcm_substream *substream, const cha
80406 struct snd_pcm_plugin_channel *channels;
80407 size_t oss_frame_bytes = (runtime->oss.plugin_first->src_width * runtime->oss.plugin_first->src_format.channels) / 8;
80408 if (!in_kernel) {
80409 - if (copy_from_user(runtime->oss.buffer, (const char __force __user *)buf, bytes))
80410 + if (copy_from_user(runtime->oss.buffer, (const char __force_user *)buf, bytes))
80411 return -EFAULT;
80412 buf = runtime->oss.buffer;
80413 }
80414 @@ -1407,7 +1407,7 @@ static ssize_t snd_pcm_oss_write1(struct snd_pcm_substream *substream, const cha
80415 }
80416 } else {
80417 tmp = snd_pcm_oss_write2(substream,
80418 - (const char __force *)buf,
80419 + (const char __force_kernel *)buf,
80420 runtime->oss.period_bytes, 0);
80421 if (tmp <= 0)
80422 goto err;
80423 @@ -1433,7 +1433,7 @@ static ssize_t snd_pcm_oss_read2(struct snd_pcm_substream *substream, char *buf,
80424 struct snd_pcm_runtime *runtime = substream->runtime;
80425 snd_pcm_sframes_t frames, frames1;
80426 #ifdef CONFIG_SND_PCM_OSS_PLUGINS
80427 - char __user *final_dst = (char __force __user *)buf;
80428 + char __user *final_dst = (char __force_user *)buf;
80429 if (runtime->oss.plugin_first) {
80430 struct snd_pcm_plugin_channel *channels;
80431 size_t oss_frame_bytes = (runtime->oss.plugin_last->dst_width * runtime->oss.plugin_last->dst_format.channels) / 8;
80432 @@ -1495,7 +1495,7 @@ static ssize_t snd_pcm_oss_read1(struct snd_pcm_substream *substream, char __use
80433 xfer += tmp;
80434 runtime->oss.buffer_used -= tmp;
80435 } else {
80436 - tmp = snd_pcm_oss_read2(substream, (char __force *)buf,
80437 + tmp = snd_pcm_oss_read2(substream, (char __force_kernel *)buf,
80438 runtime->oss.period_bytes, 0);
80439 if (tmp <= 0)
80440 goto err;
80441 @@ -1663,7 +1663,7 @@ static int snd_pcm_oss_sync(struct snd_pcm_oss_file *pcm_oss_file)
80442 size1);
80443 size1 /= runtime->channels; /* frames */
80444 fs = snd_enter_user();
80445 - snd_pcm_lib_write(substream, (void __force __user *)runtime->oss.buffer, size1);
80446 + snd_pcm_lib_write(substream, (void __force_user *)runtime->oss.buffer, size1);
80447 snd_leave_user(fs);
80448 }
80449 } else if (runtime->access == SNDRV_PCM_ACCESS_RW_NONINTERLEAVED) {
80450 diff --git a/sound/core/pcm_compat.c b/sound/core/pcm_compat.c
80451 index 91cdf94..4085161 100644
80452 --- a/sound/core/pcm_compat.c
80453 +++ b/sound/core/pcm_compat.c
80454 @@ -31,7 +31,7 @@ static int snd_pcm_ioctl_delay_compat(struct snd_pcm_substream *substream,
80455 int err;
80456
80457 fs = snd_enter_user();
80458 - err = snd_pcm_delay(substream, &delay);
80459 + err = snd_pcm_delay(substream, (snd_pcm_sframes_t __force_user *)&delay);
80460 snd_leave_user(fs);
80461 if (err < 0)
80462 return err;
80463 diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
80464 index 53b5ada..2db94c8 100644
80465 --- a/sound/core/pcm_native.c
80466 +++ b/sound/core/pcm_native.c
80467 @@ -2780,11 +2780,11 @@ int snd_pcm_kernel_ioctl(struct snd_pcm_substream *substream,
80468 switch (substream->stream) {
80469 case SNDRV_PCM_STREAM_PLAYBACK:
80470 result = snd_pcm_playback_ioctl1(NULL, substream, cmd,
80471 - (void __user *)arg);
80472 + (void __force_user *)arg);
80473 break;
80474 case SNDRV_PCM_STREAM_CAPTURE:
80475 result = snd_pcm_capture_ioctl1(NULL, substream, cmd,
80476 - (void __user *)arg);
80477 + (void __force_user *)arg);
80478 break;
80479 default:
80480 result = -EINVAL;
80481 diff --git a/sound/core/seq/seq_device.c b/sound/core/seq/seq_device.c
80482 index 5cf8d65..912a79c 100644
80483 --- a/sound/core/seq/seq_device.c
80484 +++ b/sound/core/seq/seq_device.c
80485 @@ -64,7 +64,7 @@ struct ops_list {
80486 int argsize; /* argument size */
80487
80488 /* operators */
80489 - struct snd_seq_dev_ops ops;
80490 + struct snd_seq_dev_ops *ops;
80491
80492 /* registred devices */
80493 struct list_head dev_list; /* list of devices */
80494 @@ -333,7 +333,7 @@ int snd_seq_device_register_driver(char *id, struct snd_seq_dev_ops *entry,
80495
80496 mutex_lock(&ops->reg_mutex);
80497 /* copy driver operators */
80498 - ops->ops = *entry;
80499 + ops->ops = entry;
80500 ops->driver |= DRIVER_LOADED;
80501 ops->argsize = argsize;
80502
80503 @@ -463,7 +463,7 @@ static int init_device(struct snd_seq_device *dev, struct ops_list *ops)
80504 dev->name, ops->id, ops->argsize, dev->argsize);
80505 return -EINVAL;
80506 }
80507 - if (ops->ops.init_device(dev) >= 0) {
80508 + if (ops->ops->init_device(dev) >= 0) {
80509 dev->status = SNDRV_SEQ_DEVICE_REGISTERED;
80510 ops->num_init_devices++;
80511 } else {
80512 @@ -490,7 +490,7 @@ static int free_device(struct snd_seq_device *dev, struct ops_list *ops)
80513 dev->name, ops->id, ops->argsize, dev->argsize);
80514 return -EINVAL;
80515 }
80516 - if ((result = ops->ops.free_device(dev)) >= 0 || result == -ENXIO) {
80517 + if ((result = ops->ops->free_device(dev)) >= 0 || result == -ENXIO) {
80518 dev->status = SNDRV_SEQ_DEVICE_FREE;
80519 dev->driver_data = NULL;
80520 ops->num_init_devices--;
80521 diff --git a/sound/drivers/mts64.c b/sound/drivers/mts64.c
80522 index 621e60e..f4543f5 100644
80523 --- a/sound/drivers/mts64.c
80524 +++ b/sound/drivers/mts64.c
80525 @@ -29,6 +29,7 @@
80526 #include <sound/initval.h>
80527 #include <sound/rawmidi.h>
80528 #include <sound/control.h>
80529 +#include <asm/local.h>
80530
80531 #define CARD_NAME "Miditerminal 4140"
80532 #define DRIVER_NAME "MTS64"
80533 @@ -67,7 +68,7 @@ struct mts64 {
80534 struct pardevice *pardev;
80535 int pardev_claimed;
80536
80537 - int open_count;
80538 + local_t open_count;
80539 int current_midi_output_port;
80540 int current_midi_input_port;
80541 u8 mode[MTS64_NUM_INPUT_PORTS];
80542 @@ -697,7 +698,7 @@ static int snd_mts64_rawmidi_open(struct snd_rawmidi_substream *substream)
80543 {
80544 struct mts64 *mts = substream->rmidi->private_data;
80545
80546 - if (mts->open_count == 0) {
80547 + if (local_read(&mts->open_count) == 0) {
80548 /* We don't need a spinlock here, because this is just called
80549 if the device has not been opened before.
80550 So there aren't any IRQs from the device */
80551 @@ -705,7 +706,7 @@ static int snd_mts64_rawmidi_open(struct snd_rawmidi_substream *substream)
80552
80553 msleep(50);
80554 }
80555 - ++(mts->open_count);
80556 + local_inc(&mts->open_count);
80557
80558 return 0;
80559 }
80560 @@ -715,8 +716,7 @@ static int snd_mts64_rawmidi_close(struct snd_rawmidi_substream *substream)
80561 struct mts64 *mts = substream->rmidi->private_data;
80562 unsigned long flags;
80563
80564 - --(mts->open_count);
80565 - if (mts->open_count == 0) {
80566 + if (local_dec_return(&mts->open_count) == 0) {
80567 /* We need the spinlock_irqsave here because we can still
80568 have IRQs at this point */
80569 spin_lock_irqsave(&mts->lock, flags);
80570 @@ -725,8 +725,8 @@ static int snd_mts64_rawmidi_close(struct snd_rawmidi_substream *substream)
80571
80572 msleep(500);
80573
80574 - } else if (mts->open_count < 0)
80575 - mts->open_count = 0;
80576 + } else if (local_read(&mts->open_count) < 0)
80577 + local_set(&mts->open_count, 0);
80578
80579 return 0;
80580 }
80581 diff --git a/sound/drivers/opl4/opl4_lib.c b/sound/drivers/opl4/opl4_lib.c
80582 index b953fb4..1999c01 100644
80583 --- a/sound/drivers/opl4/opl4_lib.c
80584 +++ b/sound/drivers/opl4/opl4_lib.c
80585 @@ -29,7 +29,7 @@ MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>");
80586 MODULE_DESCRIPTION("OPL4 driver");
80587 MODULE_LICENSE("GPL");
80588
80589 -static void inline snd_opl4_wait(struct snd_opl4 *opl4)
80590 +static inline void snd_opl4_wait(struct snd_opl4 *opl4)
80591 {
80592 int timeout = 10;
80593 while ((inb(opl4->fm_port) & OPL4_STATUS_BUSY) && --timeout > 0)
80594 diff --git a/sound/drivers/portman2x4.c b/sound/drivers/portman2x4.c
80595 index 3e32bd3..46fc152 100644
80596 --- a/sound/drivers/portman2x4.c
80597 +++ b/sound/drivers/portman2x4.c
80598 @@ -48,6 +48,7 @@
80599 #include <sound/initval.h>
80600 #include <sound/rawmidi.h>
80601 #include <sound/control.h>
80602 +#include <asm/local.h>
80603
80604 #define CARD_NAME "Portman 2x4"
80605 #define DRIVER_NAME "portman"
80606 @@ -85,7 +86,7 @@ struct portman {
80607 struct pardevice *pardev;
80608 int pardev_claimed;
80609
80610 - int open_count;
80611 + local_t open_count;
80612 int mode[PORTMAN_NUM_INPUT_PORTS];
80613 struct snd_rawmidi_substream *midi_input[PORTMAN_NUM_INPUT_PORTS];
80614 };
80615 diff --git a/sound/firewire/amdtp.c b/sound/firewire/amdtp.c
80616 index ea995af..f1bfa37 100644
80617 --- a/sound/firewire/amdtp.c
80618 +++ b/sound/firewire/amdtp.c
80619 @@ -389,7 +389,7 @@ static void queue_out_packet(struct amdtp_out_stream *s, unsigned int cycle)
80620 ptr = s->pcm_buffer_pointer + data_blocks;
80621 if (ptr >= pcm->runtime->buffer_size)
80622 ptr -= pcm->runtime->buffer_size;
80623 - ACCESS_ONCE(s->pcm_buffer_pointer) = ptr;
80624 + ACCESS_ONCE_RW(s->pcm_buffer_pointer) = ptr;
80625
80626 s->pcm_period_pointer += data_blocks;
80627 if (s->pcm_period_pointer >= pcm->runtime->period_size) {
80628 @@ -557,7 +557,7 @@ EXPORT_SYMBOL(amdtp_out_stream_pcm_pointer);
80629 */
80630 void amdtp_out_stream_update(struct amdtp_out_stream *s)
80631 {
80632 - ACCESS_ONCE(s->source_node_id_field) =
80633 + ACCESS_ONCE_RW(s->source_node_id_field) =
80634 (fw_parent_device(s->unit)->card->node_id & 0x3f) << 24;
80635 }
80636 EXPORT_SYMBOL(amdtp_out_stream_update);
80637 diff --git a/sound/firewire/amdtp.h b/sound/firewire/amdtp.h
80638 index b680c5e..061b7a0 100644
80639 --- a/sound/firewire/amdtp.h
80640 +++ b/sound/firewire/amdtp.h
80641 @@ -139,7 +139,7 @@ static inline bool amdtp_out_streaming_error(struct amdtp_out_stream *s)
80642 static inline void amdtp_out_stream_pcm_trigger(struct amdtp_out_stream *s,
80643 struct snd_pcm_substream *pcm)
80644 {
80645 - ACCESS_ONCE(s->pcm) = pcm;
80646 + ACCESS_ONCE_RW(s->pcm) = pcm;
80647 }
80648
80649 static inline bool cip_sfc_is_base_44100(enum cip_sfc sfc)
80650 diff --git a/sound/firewire/isight.c b/sound/firewire/isight.c
80651 index d428ffe..751ef78 100644
80652 --- a/sound/firewire/isight.c
80653 +++ b/sound/firewire/isight.c
80654 @@ -96,7 +96,7 @@ static void isight_update_pointers(struct isight *isight, unsigned int count)
80655 ptr += count;
80656 if (ptr >= runtime->buffer_size)
80657 ptr -= runtime->buffer_size;
80658 - ACCESS_ONCE(isight->buffer_pointer) = ptr;
80659 + ACCESS_ONCE_RW(isight->buffer_pointer) = ptr;
80660
80661 isight->period_counter += count;
80662 if (isight->period_counter >= runtime->period_size) {
80663 @@ -307,7 +307,7 @@ static int isight_hw_params(struct snd_pcm_substream *substream,
80664 if (err < 0)
80665 return err;
80666
80667 - ACCESS_ONCE(isight->pcm_active) = true;
80668 + ACCESS_ONCE_RW(isight->pcm_active) = true;
80669
80670 return 0;
80671 }
80672 @@ -340,7 +340,7 @@ static int isight_hw_free(struct snd_pcm_substream *substream)
80673 {
80674 struct isight *isight = substream->private_data;
80675
80676 - ACCESS_ONCE(isight->pcm_active) = false;
80677 + ACCESS_ONCE_RW(isight->pcm_active) = false;
80678
80679 mutex_lock(&isight->mutex);
80680 isight_stop_streaming(isight);
80681 @@ -433,10 +433,10 @@ static int isight_trigger(struct snd_pcm_substream *substream, int cmd)
80682
80683 switch (cmd) {
80684 case SNDRV_PCM_TRIGGER_START:
80685 - ACCESS_ONCE(isight->pcm_running) = true;
80686 + ACCESS_ONCE_RW(isight->pcm_running) = true;
80687 break;
80688 case SNDRV_PCM_TRIGGER_STOP:
80689 - ACCESS_ONCE(isight->pcm_running) = false;
80690 + ACCESS_ONCE_RW(isight->pcm_running) = false;
80691 break;
80692 default:
80693 return -EINVAL;
80694 diff --git a/sound/isa/cmi8330.c b/sound/isa/cmi8330.c
80695 index 7bd5e33..1fcab12 100644
80696 --- a/sound/isa/cmi8330.c
80697 +++ b/sound/isa/cmi8330.c
80698 @@ -172,7 +172,7 @@ struct snd_cmi8330 {
80699
80700 struct snd_pcm *pcm;
80701 struct snd_cmi8330_stream {
80702 - struct snd_pcm_ops ops;
80703 + snd_pcm_ops_no_const ops;
80704 snd_pcm_open_callback_t open;
80705 void *private_data; /* sb or wss */
80706 } streams[2];
80707 diff --git a/sound/oss/sb_audio.c b/sound/oss/sb_audio.c
80708 index 733b014..56ce96f 100644
80709 --- a/sound/oss/sb_audio.c
80710 +++ b/sound/oss/sb_audio.c
80711 @@ -901,7 +901,7 @@ sb16_copy_from_user(int dev,
80712 buf16 = (signed short *)(localbuf + localoffs);
80713 while (c)
80714 {
80715 - locallen = (c >= LBUFCOPYSIZE ? LBUFCOPYSIZE : c);
80716 + locallen = ((unsigned)c >= LBUFCOPYSIZE ? LBUFCOPYSIZE : c);
80717 if (copy_from_user(lbuf8,
80718 userbuf+useroffs + p,
80719 locallen))
80720 diff --git a/sound/oss/swarm_cs4297a.c b/sound/oss/swarm_cs4297a.c
80721 index 09d4648..cf234c7 100644
80722 --- a/sound/oss/swarm_cs4297a.c
80723 +++ b/sound/oss/swarm_cs4297a.c
80724 @@ -2606,7 +2606,6 @@ static int __init cs4297a_init(void)
80725 {
80726 struct cs4297a_state *s;
80727 u32 pwr, id;
80728 - mm_segment_t fs;
80729 int rval;
80730 #ifndef CONFIG_BCM_CS4297A_CSWARM
80731 u64 cfg;
80732 @@ -2696,22 +2695,23 @@ static int __init cs4297a_init(void)
80733 if (!rval) {
80734 char *sb1250_duart_present;
80735
80736 +#if 0
80737 + mm_segment_t fs;
80738 fs = get_fs();
80739 set_fs(KERNEL_DS);
80740 -#if 0
80741 val = SOUND_MASK_LINE;
80742 mixer_ioctl(s, SOUND_MIXER_WRITE_RECSRC, (unsigned long) &val);
80743 for (i = 0; i < ARRAY_SIZE(initvol); i++) {
80744 val = initvol[i].vol;
80745 mixer_ioctl(s, initvol[i].mixch, (unsigned long) &val);
80746 }
80747 + set_fs(fs);
80748 // cs4297a_write_ac97(s, 0x18, 0x0808);
80749 #else
80750 // cs4297a_write_ac97(s, 0x5e, 0x180);
80751 cs4297a_write_ac97(s, 0x02, 0x0808);
80752 cs4297a_write_ac97(s, 0x18, 0x0808);
80753 #endif
80754 - set_fs(fs);
80755
80756 list_add(&s->list, &cs4297a_devs);
80757
80758 diff --git a/sound/pci/hda/hda_codec.h b/sound/pci/hda/hda_codec.h
80759 index 2fdaadb..7df8fc6 100644
80760 --- a/sound/pci/hda/hda_codec.h
80761 +++ b/sound/pci/hda/hda_codec.h
80762 @@ -611,7 +611,7 @@ struct hda_bus_ops {
80763 /* notify power-up/down from codec to controller */
80764 void (*pm_notify)(struct hda_bus *bus);
80765 #endif
80766 -};
80767 +} __no_const;
80768
80769 /* template to pass to the bus constructor */
80770 struct hda_bus_template {
80771 @@ -711,6 +711,7 @@ struct hda_codec_ops {
80772 #endif
80773 void (*reboot_notify)(struct hda_codec *codec);
80774 };
80775 +typedef struct hda_codec_ops __no_const hda_codec_ops_no_const;
80776
80777 /* record for amp information cache */
80778 struct hda_cache_head {
80779 @@ -741,7 +742,7 @@ struct hda_pcm_ops {
80780 struct snd_pcm_substream *substream);
80781 int (*cleanup)(struct hda_pcm_stream *info, struct hda_codec *codec,
80782 struct snd_pcm_substream *substream);
80783 -};
80784 +} __no_const;
80785
80786 /* PCM information for each substream */
80787 struct hda_pcm_stream {
80788 @@ -799,7 +800,7 @@ struct hda_codec {
80789 const char *modelname; /* model name for preset */
80790
80791 /* set by patch */
80792 - struct hda_codec_ops patch_ops;
80793 + hda_codec_ops_no_const patch_ops;
80794
80795 /* PCM to create, set by patch_ops.build_pcms callback */
80796 unsigned int num_pcms;
80797 diff --git a/sound/pci/ice1712/ice1712.h b/sound/pci/ice1712/ice1712.h
80798 index 0da778a..bc38b84 100644
80799 --- a/sound/pci/ice1712/ice1712.h
80800 +++ b/sound/pci/ice1712/ice1712.h
80801 @@ -269,7 +269,7 @@ struct snd_ak4xxx_private {
80802 unsigned int mask_flags; /* total mask bits */
80803 struct snd_akm4xxx_ops {
80804 void (*set_rate_val)(struct snd_akm4xxx *ak, unsigned int rate);
80805 - } ops;
80806 + } __no_const ops;
80807 };
80808
80809 struct snd_ice1712_spdif {
80810 @@ -285,7 +285,7 @@ struct snd_ice1712_spdif {
80811 int (*default_put)(struct snd_ice1712 *, struct snd_ctl_elem_value *ucontrol);
80812 void (*stream_get)(struct snd_ice1712 *, struct snd_ctl_elem_value *ucontrol);
80813 int (*stream_put)(struct snd_ice1712 *, struct snd_ctl_elem_value *ucontrol);
80814 - } ops;
80815 + } __no_const ops;
80816 };
80817
80818
80819 diff --git a/sound/pci/ymfpci/ymfpci_main.c b/sound/pci/ymfpci/ymfpci_main.c
80820 index a8159b81..5f006a5 100644
80821 --- a/sound/pci/ymfpci/ymfpci_main.c
80822 +++ b/sound/pci/ymfpci/ymfpci_main.c
80823 @@ -203,8 +203,8 @@ static void snd_ymfpci_hw_stop(struct snd_ymfpci *chip)
80824 if ((snd_ymfpci_readl(chip, YDSXGR_STATUS) & 2) == 0)
80825 break;
80826 }
80827 - if (atomic_read(&chip->interrupt_sleep_count)) {
80828 - atomic_set(&chip->interrupt_sleep_count, 0);
80829 + if (atomic_read_unchecked(&chip->interrupt_sleep_count)) {
80830 + atomic_set_unchecked(&chip->interrupt_sleep_count, 0);
80831 wake_up(&chip->interrupt_sleep);
80832 }
80833 __end:
80834 @@ -788,7 +788,7 @@ static void snd_ymfpci_irq_wait(struct snd_ymfpci *chip)
80835 continue;
80836 init_waitqueue_entry(&wait, current);
80837 add_wait_queue(&chip->interrupt_sleep, &wait);
80838 - atomic_inc(&chip->interrupt_sleep_count);
80839 + atomic_inc_unchecked(&chip->interrupt_sleep_count);
80840 schedule_timeout_uninterruptible(msecs_to_jiffies(50));
80841 remove_wait_queue(&chip->interrupt_sleep, &wait);
80842 }
80843 @@ -826,8 +826,8 @@ static irqreturn_t snd_ymfpci_interrupt(int irq, void *dev_id)
80844 snd_ymfpci_writel(chip, YDSXGR_MODE, mode);
80845 spin_unlock(&chip->reg_lock);
80846
80847 - if (atomic_read(&chip->interrupt_sleep_count)) {
80848 - atomic_set(&chip->interrupt_sleep_count, 0);
80849 + if (atomic_read_unchecked(&chip->interrupt_sleep_count)) {
80850 + atomic_set_unchecked(&chip->interrupt_sleep_count, 0);
80851 wake_up(&chip->interrupt_sleep);
80852 }
80853 }
80854 @@ -2398,7 +2398,7 @@ int __devinit snd_ymfpci_create(struct snd_card *card,
80855 spin_lock_init(&chip->reg_lock);
80856 spin_lock_init(&chip->voice_lock);
80857 init_waitqueue_head(&chip->interrupt_sleep);
80858 - atomic_set(&chip->interrupt_sleep_count, 0);
80859 + atomic_set_unchecked(&chip->interrupt_sleep_count, 0);
80860 chip->card = card;
80861 chip->pci = pci;
80862 chip->irq = -1;
80863 diff --git a/tools/gcc/.gitignore b/tools/gcc/.gitignore
80864 new file mode 100644
80865 index 0000000..50f2f2f
80866 --- /dev/null
80867 +++ b/tools/gcc/.gitignore
80868 @@ -0,0 +1 @@
80869 +size_overflow_hash.h
80870 diff --git a/tools/gcc/Makefile b/tools/gcc/Makefile
80871 new file mode 100644
80872 index 0000000..1d09b7e
80873 --- /dev/null
80874 +++ b/tools/gcc/Makefile
80875 @@ -0,0 +1,43 @@
80876 +#CC := gcc
80877 +#PLUGIN_SOURCE_FILES := pax_plugin.c
80878 +#PLUGIN_OBJECT_FILES := $(patsubst %.c,%.o,$(PLUGIN_SOURCE_FILES))
80879 +GCCPLUGINS_DIR := $(shell $(CC) -print-file-name=plugin)
80880 +#CFLAGS += -I$(GCCPLUGINS_DIR)/include -fPIC -O2 -Wall -W -std=gnu99
80881 +
80882 +ifeq ($(PLUGINCC),$(HOSTCC))
80883 +HOSTLIBS := hostlibs
80884 +HOST_EXTRACFLAGS += -I$(GCCPLUGINS_DIR)/include -I$(GCCPLUGINS_DIR)/include/c-family -std=gnu99 -ggdb
80885 +else
80886 +HOSTLIBS := hostcxxlibs
80887 +HOST_EXTRACXXFLAGS += -I$(GCCPLUGINS_DIR)/include -I$(GCCPLUGINS_DIR)/include/c-family -std=gnu++98 -ggdb -Wno-unused-parameter
80888 +endif
80889 +
80890 +$(HOSTLIBS)-y := constify_plugin.so
80891 +$(HOSTLIBS)-$(CONFIG_PAX_MEMORY_STACKLEAK) += stackleak_plugin.so
80892 +$(HOSTLIBS)-$(CONFIG_KALLOCSTAT_PLUGIN) += kallocstat_plugin.so
80893 +$(HOSTLIBS)-$(CONFIG_PAX_KERNEXEC_PLUGIN) += kernexec_plugin.so
80894 +$(HOSTLIBS)-$(CONFIG_CHECKER_PLUGIN) += checker_plugin.so
80895 +$(HOSTLIBS)-y += colorize_plugin.so
80896 +$(HOSTLIBS)-$(CONFIG_PAX_SIZE_OVERFLOW) += size_overflow_plugin.so
80897 +$(HOSTLIBS)-$(CONFIG_PAX_LATENT_ENTROPY) += latent_entropy_plugin.so
80898 +
80899 +always := $($(HOSTLIBS)-y)
80900 +
80901 +constify_plugin-objs := constify_plugin.o
80902 +stackleak_plugin-objs := stackleak_plugin.o
80903 +kallocstat_plugin-objs := kallocstat_plugin.o
80904 +kernexec_plugin-objs := kernexec_plugin.o
80905 +checker_plugin-objs := checker_plugin.o
80906 +colorize_plugin-objs := colorize_plugin.o
80907 +size_overflow_plugin-objs := size_overflow_plugin.o
80908 +latent_entropy_plugin-objs := latent_entropy_plugin.o
80909 +
80910 +$(obj)/size_overflow_plugin.o: $(objtree)/$(obj)/size_overflow_hash.h
80911 +
80912 +quiet_cmd_build_size_overflow_hash = GENHASH $@
80913 + cmd_build_size_overflow_hash = \
80914 + $(CONFIG_SHELL) $(srctree)/$(src)/generate_size_overflow_hash.sh -d $< -o $@
80915 +$(objtree)/$(obj)/size_overflow_hash.h: $(src)/size_overflow_hash.data FORCE
80916 + $(call if_changed,build_size_overflow_hash)
80917 +
80918 +targets += size_overflow_hash.h
80919 diff --git a/tools/gcc/checker_plugin.c b/tools/gcc/checker_plugin.c
80920 new file mode 100644
80921 index 0000000..d41b5af
80922 --- /dev/null
80923 +++ b/tools/gcc/checker_plugin.c
80924 @@ -0,0 +1,171 @@
80925 +/*
80926 + * Copyright 2011 by the PaX Team <pageexec@freemail.hu>
80927 + * Licensed under the GPL v2
80928 + *
80929 + * Note: the choice of the license means that the compilation process is
80930 + * NOT 'eligible' as defined by gcc's library exception to the GPL v3,
80931 + * but for the kernel it doesn't matter since it doesn't link against
80932 + * any of the gcc libraries
80933 + *
80934 + * gcc plugin to implement various sparse (source code checker) features
80935 + *
80936 + * TODO:
80937 + * - define separate __iomem, __percpu and __rcu address spaces (lots of code to patch)
80938 + *
80939 + * BUGS:
80940 + * - none known
80941 + */
80942 +#include "gcc-plugin.h"
80943 +#include "config.h"
80944 +#include "system.h"
80945 +#include "coretypes.h"
80946 +#include "tree.h"
80947 +#include "tree-pass.h"
80948 +#include "flags.h"
80949 +#include "intl.h"
80950 +#include "toplev.h"
80951 +#include "plugin.h"
80952 +//#include "expr.h" where are you...
80953 +#include "diagnostic.h"
80954 +#include "plugin-version.h"
80955 +#include "tm.h"
80956 +#include "function.h"
80957 +#include "basic-block.h"
80958 +#include "gimple.h"
80959 +#include "rtl.h"
80960 +#include "emit-rtl.h"
80961 +#include "tree-flow.h"
80962 +#include "target.h"
80963 +
80964 +extern void c_register_addr_space (const char *str, addr_space_t as);
80965 +extern enum machine_mode default_addr_space_pointer_mode (addr_space_t);
80966 +extern enum machine_mode default_addr_space_address_mode (addr_space_t);
80967 +extern bool default_addr_space_valid_pointer_mode(enum machine_mode mode, addr_space_t as);
80968 +extern bool default_addr_space_legitimate_address_p(enum machine_mode mode, rtx mem, bool strict, addr_space_t as);
80969 +extern rtx default_addr_space_legitimize_address(rtx x, rtx oldx, enum machine_mode mode, addr_space_t as);
80970 +
80971 +extern void print_gimple_stmt(FILE *, gimple, int, int);
80972 +extern rtx emit_move_insn(rtx x, rtx y);
80973 +
80974 +int plugin_is_GPL_compatible;
80975 +
80976 +static struct plugin_info checker_plugin_info = {
80977 + .version = "201111150100",
80978 +};
80979 +
80980 +#define ADDR_SPACE_KERNEL 0
80981 +#define ADDR_SPACE_FORCE_KERNEL 1
80982 +#define ADDR_SPACE_USER 2
80983 +#define ADDR_SPACE_FORCE_USER 3
80984 +#define ADDR_SPACE_IOMEM 0
80985 +#define ADDR_SPACE_FORCE_IOMEM 0
80986 +#define ADDR_SPACE_PERCPU 0
80987 +#define ADDR_SPACE_FORCE_PERCPU 0
80988 +#define ADDR_SPACE_RCU 0
80989 +#define ADDR_SPACE_FORCE_RCU 0
80990 +
80991 +static enum machine_mode checker_addr_space_pointer_mode(addr_space_t addrspace)
80992 +{
80993 + return default_addr_space_pointer_mode(ADDR_SPACE_GENERIC);
80994 +}
80995 +
80996 +static enum machine_mode checker_addr_space_address_mode(addr_space_t addrspace)
80997 +{
80998 + return default_addr_space_address_mode(ADDR_SPACE_GENERIC);
80999 +}
81000 +
81001 +static bool checker_addr_space_valid_pointer_mode(enum machine_mode mode, addr_space_t as)
81002 +{
81003 + return default_addr_space_valid_pointer_mode(mode, as);
81004 +}
81005 +
81006 +static bool checker_addr_space_legitimate_address_p(enum machine_mode mode, rtx mem, bool strict, addr_space_t as)
81007 +{
81008 + return default_addr_space_legitimate_address_p(mode, mem, strict, ADDR_SPACE_GENERIC);
81009 +}
81010 +
81011 +static rtx checker_addr_space_legitimize_address(rtx x, rtx oldx, enum machine_mode mode, addr_space_t as)
81012 +{
81013 + return default_addr_space_legitimize_address(x, oldx, mode, as);
81014 +}
81015 +
81016 +static bool checker_addr_space_subset_p(addr_space_t subset, addr_space_t superset)
81017 +{
81018 + if (subset == ADDR_SPACE_FORCE_KERNEL && superset == ADDR_SPACE_KERNEL)
81019 + return true;
81020 +
81021 + if (subset == ADDR_SPACE_FORCE_USER && superset == ADDR_SPACE_USER)
81022 + return true;
81023 +
81024 + if (subset == ADDR_SPACE_FORCE_IOMEM && superset == ADDR_SPACE_IOMEM)
81025 + return true;
81026 +
81027 + if (subset == ADDR_SPACE_KERNEL && superset == ADDR_SPACE_FORCE_USER)
81028 + return true;
81029 +
81030 + if (subset == ADDR_SPACE_KERNEL && superset == ADDR_SPACE_FORCE_IOMEM)
81031 + return true;
81032 +
81033 + if (subset == ADDR_SPACE_USER && superset == ADDR_SPACE_FORCE_KERNEL)
81034 + return true;
81035 +
81036 + if (subset == ADDR_SPACE_IOMEM && superset == ADDR_SPACE_FORCE_KERNEL)
81037 + return true;
81038 +
81039 + return subset == superset;
81040 +}
81041 +
81042 +static rtx checker_addr_space_convert(rtx op, tree from_type, tree to_type)
81043 +{
81044 +// addr_space_t from_as = TYPE_ADDR_SPACE(TREE_TYPE(from_type));
81045 +// addr_space_t to_as = TYPE_ADDR_SPACE(TREE_TYPE(to_type));
81046 +
81047 + return op;
81048 +}
81049 +
81050 +static void register_checker_address_spaces(void *event_data, void *data)
81051 +{
81052 + c_register_addr_space("__kernel", ADDR_SPACE_KERNEL);
81053 + c_register_addr_space("__force_kernel", ADDR_SPACE_FORCE_KERNEL);
81054 + c_register_addr_space("__user", ADDR_SPACE_USER);
81055 + c_register_addr_space("__force_user", ADDR_SPACE_FORCE_USER);
81056 +// c_register_addr_space("__iomem", ADDR_SPACE_IOMEM);
81057 +// c_register_addr_space("__force_iomem", ADDR_SPACE_FORCE_IOMEM);
81058 +// c_register_addr_space("__percpu", ADDR_SPACE_PERCPU);
81059 +// c_register_addr_space("__force_percpu", ADDR_SPACE_FORCE_PERCPU);
81060 +// c_register_addr_space("__rcu", ADDR_SPACE_RCU);
81061 +// c_register_addr_space("__force_rcu", ADDR_SPACE_FORCE_RCU);
81062 +
81063 + targetm.addr_space.pointer_mode = checker_addr_space_pointer_mode;
81064 + targetm.addr_space.address_mode = checker_addr_space_address_mode;
81065 + targetm.addr_space.valid_pointer_mode = checker_addr_space_valid_pointer_mode;
81066 + targetm.addr_space.legitimate_address_p = checker_addr_space_legitimate_address_p;
81067 +// targetm.addr_space.legitimize_address = checker_addr_space_legitimize_address;
81068 + targetm.addr_space.subset_p = checker_addr_space_subset_p;
81069 + targetm.addr_space.convert = checker_addr_space_convert;
81070 +}
81071 +
81072 +int plugin_init(struct plugin_name_args *plugin_info, struct plugin_gcc_version *version)
81073 +{
81074 + const char * const plugin_name = plugin_info->base_name;
81075 + const int argc = plugin_info->argc;
81076 + const struct plugin_argument * const argv = plugin_info->argv;
81077 + int i;
81078 +
81079 + if (!plugin_default_version_check(version, &gcc_version)) {
81080 + error(G_("incompatible gcc/plugin versions"));
81081 + return 1;
81082 + }
81083 +
81084 + register_callback(plugin_name, PLUGIN_INFO, NULL, &checker_plugin_info);
81085 +
81086 + for (i = 0; i < argc; ++i)
81087 + error(G_("unkown option '-fplugin-arg-%s-%s'"), plugin_name, argv[i].key);
81088 +
81089 + if (TARGET_64BIT == 0)
81090 + return 0;
81091 +
81092 + register_callback(plugin_name, PLUGIN_PRAGMAS, register_checker_address_spaces, NULL);
81093 +
81094 + return 0;
81095 +}
81096 diff --git a/tools/gcc/colorize_plugin.c b/tools/gcc/colorize_plugin.c
81097 new file mode 100644
81098 index 0000000..846aeb0
81099 --- /dev/null
81100 +++ b/tools/gcc/colorize_plugin.c
81101 @@ -0,0 +1,148 @@
81102 +/*
81103 + * Copyright 2012 by PaX Team <pageexec@freemail.hu>
81104 + * Licensed under the GPL v2
81105 + *
81106 + * Note: the choice of the license means that the compilation process is
81107 + * NOT 'eligible' as defined by gcc's library exception to the GPL v3,
81108 + * but for the kernel it doesn't matter since it doesn't link against
81109 + * any of the gcc libraries
81110 + *
81111 + * gcc plugin to colorize diagnostic output
81112 + *
81113 + */
81114 +
81115 +#include "gcc-plugin.h"
81116 +#include "config.h"
81117 +#include "system.h"
81118 +#include "coretypes.h"
81119 +#include "tree.h"
81120 +#include "tree-pass.h"
81121 +#include "flags.h"
81122 +#include "intl.h"
81123 +#include "toplev.h"
81124 +#include "plugin.h"
81125 +#include "diagnostic.h"
81126 +#include "plugin-version.h"
81127 +#include "tm.h"
81128 +
81129 +int plugin_is_GPL_compatible;
81130 +
81131 +static struct plugin_info colorize_plugin_info = {
81132 + .version = "201203092200",
81133 + .help = NULL,
81134 +};
81135 +
81136 +#define GREEN "\033[32m\033[2m"
81137 +#define LIGHTGREEN "\033[32m\033[1m"
81138 +#define YELLOW "\033[33m\033[2m"
81139 +#define LIGHTYELLOW "\033[33m\033[1m"
81140 +#define RED "\033[31m\033[2m"
81141 +#define LIGHTRED "\033[31m\033[1m"
81142 +#define BLUE "\033[34m\033[2m"
81143 +#define LIGHTBLUE "\033[34m\033[1m"
81144 +#define BRIGHT "\033[m\033[1m"
81145 +#define NORMAL "\033[m"
81146 +
81147 +static diagnostic_starter_fn old_starter;
81148 +static diagnostic_finalizer_fn old_finalizer;
81149 +
81150 +static void start_colorize(diagnostic_context *context, diagnostic_info *diagnostic)
81151 +{
81152 + const char *color;
81153 + char *newprefix;
81154 +
81155 + switch (diagnostic->kind) {
81156 + case DK_NOTE:
81157 + color = LIGHTBLUE;
81158 + break;
81159 +
81160 + case DK_PEDWARN:
81161 + case DK_WARNING:
81162 + color = LIGHTYELLOW;
81163 + break;
81164 +
81165 + case DK_ERROR:
81166 + case DK_FATAL:
81167 + case DK_ICE:
81168 + case DK_PERMERROR:
81169 + case DK_SORRY:
81170 + color = LIGHTRED;
81171 + break;
81172 +
81173 + default:
81174 + color = NORMAL;
81175 + }
81176 +
81177 + old_starter(context, diagnostic);
81178 + if (-1 == asprintf(&newprefix, "%s%s" NORMAL, color, context->printer->prefix))
81179 + return;
81180 + pp_destroy_prefix(context->printer);
81181 + pp_set_prefix(context->printer, newprefix);
81182 +}
81183 +
81184 +static void finalize_colorize(diagnostic_context *context, diagnostic_info *diagnostic)
81185 +{
81186 + old_finalizer(context, diagnostic);
81187 +}
81188 +
81189 +static void colorize_arm(void)
81190 +{
81191 + old_starter = diagnostic_starter(global_dc);
81192 + old_finalizer = diagnostic_finalizer(global_dc);
81193 +
81194 + diagnostic_starter(global_dc) = start_colorize;
81195 + diagnostic_finalizer(global_dc) = finalize_colorize;
81196 +}
81197 +
81198 +static unsigned int execute_colorize_rearm(void)
81199 +{
81200 + if (diagnostic_starter(global_dc) == start_colorize)
81201 + return 0;
81202 +
81203 + colorize_arm();
81204 + return 0;
81205 +}
81206 +
81207 +struct simple_ipa_opt_pass pass_ipa_colorize_rearm = {
81208 + .pass = {
81209 + .type = SIMPLE_IPA_PASS,
81210 + .name = "colorize_rearm",
81211 + .gate = NULL,
81212 + .execute = execute_colorize_rearm,
81213 + .sub = NULL,
81214 + .next = NULL,
81215 + .static_pass_number = 0,
81216 + .tv_id = TV_NONE,
81217 + .properties_required = 0,
81218 + .properties_provided = 0,
81219 + .properties_destroyed = 0,
81220 + .todo_flags_start = 0,
81221 + .todo_flags_finish = 0
81222 + }
81223 +};
81224 +
81225 +static void colorize_start_unit(void *gcc_data, void *user_data)
81226 +{
81227 + colorize_arm();
81228 +}
81229 +
81230 +int plugin_init(struct plugin_name_args *plugin_info, struct plugin_gcc_version *version)
81231 +{
81232 + const char * const plugin_name = plugin_info->base_name;
81233 + struct register_pass_info colorize_rearm_pass_info = {
81234 + .pass = &pass_ipa_colorize_rearm.pass,
81235 + .reference_pass_name = "*free_lang_data",
81236 + .ref_pass_instance_number = 1,
81237 + .pos_op = PASS_POS_INSERT_AFTER
81238 + };
81239 +
81240 + if (!plugin_default_version_check(version, &gcc_version)) {
81241 + error(G_("incompatible gcc/plugin versions"));
81242 + return 1;
81243 + }
81244 +
81245 + register_callback(plugin_name, PLUGIN_INFO, NULL, &colorize_plugin_info);
81246 + register_callback(plugin_name, PLUGIN_START_UNIT, &colorize_start_unit, NULL);
81247 + register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &colorize_rearm_pass_info);
81248 + return 0;
81249 +}
81250 diff --git a/tools/gcc/constify_plugin.c b/tools/gcc/constify_plugin.c
81251 new file mode 100644
81252 index 0000000..048d4ff
81253 --- /dev/null
81254 +++ b/tools/gcc/constify_plugin.c
81255 @@ -0,0 +1,328 @@
81256 +/*
81257 + * Copyright 2011 by Emese Revfy <re.emese@gmail.com>
81258 + * Copyright 2011 by PaX Team <pageexec@freemail.hu>
81259 + * Licensed under the GPL v2, or (at your option) v3
81260 + *
81261 + * This gcc plugin constifies all structures which contain only function pointers or are explicitly marked for constification.
81262 + *
81263 + * Homepage:
81264 + * http://www.grsecurity.net/~ephox/const_plugin/
81265 + *
81266 + * Usage:
81267 + * $ gcc -I`gcc -print-file-name=plugin`/include -fPIC -shared -O2 -o constify_plugin.so constify_plugin.c
81268 + * $ gcc -fplugin=constify_plugin.so test.c -O2
81269 + */
81270 +
81271 +#include "gcc-plugin.h"
81272 +#include "config.h"
81273 +#include "system.h"
81274 +#include "coretypes.h"
81275 +#include "tree.h"
81276 +#include "tree-pass.h"
81277 +#include "flags.h"
81278 +#include "intl.h"
81279 +#include "toplev.h"
81280 +#include "plugin.h"
81281 +#include "diagnostic.h"
81282 +#include "plugin-version.h"
81283 +#include "tm.h"
81284 +#include "function.h"
81285 +#include "basic-block.h"
81286 +#include "gimple.h"
81287 +#include "rtl.h"
81288 +#include "emit-rtl.h"
81289 +#include "tree-flow.h"
81290 +
81291 +#define C_TYPE_FIELDS_READONLY(TYPE) TREE_LANG_FLAG_1(TYPE)
81292 +
81293 +int plugin_is_GPL_compatible;
81294 +
81295 +static struct plugin_info const_plugin_info = {
81296 + .version = "201205300030",
81297 + .help = "no-constify\tturn off constification\n",
81298 +};
81299 +
81300 +static void deconstify_tree(tree node);
81301 +
81302 +static void deconstify_type(tree type)
81303 +{
81304 + tree field;
81305 +
81306 + for (field = TYPE_FIELDS(type); field; field = TREE_CHAIN(field)) {
81307 + tree type = TREE_TYPE(field);
81308 +
81309 + if (TREE_CODE(type) != RECORD_TYPE && TREE_CODE(type) != UNION_TYPE)
81310 + continue;
81311 + if (!TYPE_READONLY(type))
81312 + continue;
81313 +
81314 + deconstify_tree(field);
81315 + }
81316 + TYPE_READONLY(type) = 0;
81317 + C_TYPE_FIELDS_READONLY(type) = 0;
81318 +}
81319 +
81320 +static void deconstify_tree(tree node)
81321 +{
81322 + tree old_type, new_type, field;
81323 +
81324 + old_type = TREE_TYPE(node);
81325 +
81326 + gcc_assert(TYPE_READONLY(old_type) && (TYPE_QUALS(old_type) & TYPE_QUAL_CONST));
81327 +
81328 + new_type = build_qualified_type(old_type, TYPE_QUALS(old_type) & ~TYPE_QUAL_CONST);
81329 + TYPE_FIELDS(new_type) = copy_list(TYPE_FIELDS(new_type));
81330 + for (field = TYPE_FIELDS(new_type); field; field = TREE_CHAIN(field))
81331 + DECL_FIELD_CONTEXT(field) = new_type;
81332 +
81333 + deconstify_type(new_type);
81334 +
81335 + TREE_READONLY(node) = 0;
81336 + TREE_TYPE(node) = new_type;
81337 +}
81338 +
81339 +static tree handle_no_const_attribute(tree *node, tree name, tree args, int flags, bool *no_add_attrs)
81340 +{
81341 + tree type;
81342 +
81343 + *no_add_attrs = true;
81344 + if (TREE_CODE(*node) == FUNCTION_DECL) {
81345 + error("%qE attribute does not apply to functions", name);
81346 + return NULL_TREE;
81347 + }
81348 +
81349 + if (TREE_CODE(*node) == VAR_DECL) {
81350 + error("%qE attribute does not apply to variables", name);
81351 + return NULL_TREE;
81352 + }
81353 +
81354 + if (TYPE_P(*node)) {
81355 + if (TREE_CODE(*node) == RECORD_TYPE || TREE_CODE(*node) == UNION_TYPE)
81356 + *no_add_attrs = false;
81357 + else
81358 + error("%qE attribute applies to struct and union types only", name);
81359 + return NULL_TREE;
81360 + }
81361 +
81362 + type = TREE_TYPE(*node);
81363 +
81364 + if (TREE_CODE(type) != RECORD_TYPE && TREE_CODE(type) != UNION_TYPE) {
81365 + error("%qE attribute applies to struct and union types only", name);
81366 + return NULL_TREE;
81367 + }
81368 +
81369 + if (lookup_attribute(IDENTIFIER_POINTER(name), TYPE_ATTRIBUTES(type))) {
81370 + error("%qE attribute is already applied to the type", name);
81371 + return NULL_TREE;
81372 + }
81373 +
81374 + if (TREE_CODE(*node) == TYPE_DECL && !TYPE_READONLY(type)) {
81375 + error("%qE attribute used on type that is not constified", name);
81376 + return NULL_TREE;
81377 + }
81378 +
81379 + if (TREE_CODE(*node) == TYPE_DECL) {
81380 + deconstify_tree(*node);
81381 + return NULL_TREE;
81382 + }
81383 +
81384 + return NULL_TREE;
81385 +}
81386 +
81387 +static void constify_type(tree type)
81388 +{
81389 + TYPE_READONLY(type) = 1;
81390 + C_TYPE_FIELDS_READONLY(type) = 1;
81391 +}
81392 +
81393 +static tree handle_do_const_attribute(tree *node, tree name, tree args, int flags, bool *no_add_attrs)
81394 +{
81395 + *no_add_attrs = true;
81396 + if (!TYPE_P(*node)) {
81397 + error("%qE attribute applies to types only", name);
81398 + return NULL_TREE;
81399 + }
81400 +
81401 + if (TREE_CODE(*node) != RECORD_TYPE && TREE_CODE(*node) != UNION_TYPE) {
81402 + error("%qE attribute applies to struct and union types only", name);
81403 + return NULL_TREE;
81404 + }
81405 +
81406 + *no_add_attrs = false;
81407 + constify_type(*node);
81408 + return NULL_TREE;
81409 +}
81410 +
81411 +static struct attribute_spec no_const_attr = {
81412 + .name = "no_const",
81413 + .min_length = 0,
81414 + .max_length = 0,
81415 + .decl_required = false,
81416 + .type_required = false,
81417 + .function_type_required = false,
81418 + .handler = handle_no_const_attribute,
81419 +#if BUILDING_GCC_VERSION >= 4007
81420 + .affects_type_identity = true
81421 +#endif
81422 +};
81423 +
81424 +static struct attribute_spec do_const_attr = {
81425 + .name = "do_const",
81426 + .min_length = 0,
81427 + .max_length = 0,
81428 + .decl_required = false,
81429 + .type_required = false,
81430 + .function_type_required = false,
81431 + .handler = handle_do_const_attribute,
81432 +#if BUILDING_GCC_VERSION >= 4007
81433 + .affects_type_identity = true
81434 +#endif
81435 +};
81436 +
81437 +static void register_attributes(void *event_data, void *data)
81438 +{
81439 + register_attribute(&no_const_attr);
81440 + register_attribute(&do_const_attr);
81441 +}
81442 +
81443 +static bool is_fptr(tree field)
81444 +{
81445 + tree ptr = TREE_TYPE(field);
81446 +
81447 + if (TREE_CODE(ptr) != POINTER_TYPE)
81448 + return false;
81449 +
81450 + return TREE_CODE(TREE_TYPE(ptr)) == FUNCTION_TYPE;
81451 +}
81452 +
81453 +static bool walk_struct(tree node)
81454 +{
81455 + tree field;
81456 +
81457 + if (TYPE_FIELDS(node) == NULL_TREE)
81458 + return false;
81459 +
81460 + if (lookup_attribute("no_const", TYPE_ATTRIBUTES(node))) {
81461 + gcc_assert(!TYPE_READONLY(node));
81462 + deconstify_type(node);
81463 + return false;
81464 + }
81465 +
81466 + for (field = TYPE_FIELDS(node); field; field = TREE_CHAIN(field)) {
81467 + tree type = TREE_TYPE(field);
81468 + enum tree_code code = TREE_CODE(type);
81469 + if (code == RECORD_TYPE || code == UNION_TYPE) {
81470 + if (!(walk_struct(type)))
81471 + return false;
81472 + } else if (!is_fptr(field) && !TREE_READONLY(field))
81473 + return false;
81474 + }
81475 + return true;
81476 +}
81477 +
81478 +static void finish_type(void *event_data, void *data)
81479 +{
81480 + tree type = (tree)event_data;
81481 +
81482 + if (type == NULL_TREE)
81483 + return;
81484 +
81485 + if (TYPE_READONLY(type))
81486 + return;
81487 +
81488 + if (walk_struct(type))
81489 + constify_type(type);
81490 +}
81491 +
81492 +static unsigned int check_local_variables(void);
81493 +
81494 +struct gimple_opt_pass pass_local_variable = {
81495 + {
81496 + .type = GIMPLE_PASS,
81497 + .name = "check_local_variables",
81498 + .gate = NULL,
81499 + .execute = check_local_variables,
81500 + .sub = NULL,
81501 + .next = NULL,
81502 + .static_pass_number = 0,
81503 + .tv_id = TV_NONE,
81504 + .properties_required = 0,
81505 + .properties_provided = 0,
81506 + .properties_destroyed = 0,
81507 + .todo_flags_start = 0,
81508 + .todo_flags_finish = 0
81509 + }
81510 +};
81511 +
81512 +static unsigned int check_local_variables(void)
81513 +{
81514 + tree var;
81515 + referenced_var_iterator rvi;
81516 +
81517 +#if BUILDING_GCC_VERSION == 4005
81518 + FOR_EACH_REFERENCED_VAR(var, rvi) {
81519 +#else
81520 + FOR_EACH_REFERENCED_VAR(cfun, var, rvi) {
81521 +#endif
81522 + tree type = TREE_TYPE(var);
81523 +
81524 + if (!DECL_P(var) || TREE_STATIC(var) || DECL_EXTERNAL(var))
81525 + continue;
81526 +
81527 + if (TREE_CODE(type) != RECORD_TYPE && TREE_CODE(type) != UNION_TYPE)
81528 + continue;
81529 +
81530 + if (!TYPE_READONLY(type))
81531 + continue;
81532 +
81533 +// if (lookup_attribute("no_const", DECL_ATTRIBUTES(var)))
81534 +// continue;
81535 +
81536 +// if (lookup_attribute("no_const", TYPE_ATTRIBUTES(type)))
81537 +// continue;
81538 +
81539 + if (walk_struct(type)) {
81540 + error_at(DECL_SOURCE_LOCATION(var), "constified variable %qE cannot be local", var);
81541 + return 1;
81542 + }
81543 + }
81544 + return 0;
81545 +}
81546 +
81547 +int plugin_init(struct plugin_name_args *plugin_info, struct plugin_gcc_version *version)
81548 +{
81549 + const char * const plugin_name = plugin_info->base_name;
81550 + const int argc = plugin_info->argc;
81551 + const struct plugin_argument * const argv = plugin_info->argv;
81552 + int i;
81553 + bool constify = true;
81554 +
81555 + struct register_pass_info local_variable_pass_info = {
81556 + .pass = &pass_local_variable.pass,
81557 + .reference_pass_name = "*referenced_vars",
81558 + .ref_pass_instance_number = 1,
81559 + .pos_op = PASS_POS_INSERT_AFTER
81560 + };
81561 +
81562 + if (!plugin_default_version_check(version, &gcc_version)) {
81563 + error(G_("incompatible gcc/plugin versions"));
81564 + return 1;
81565 + }
81566 +
81567 + for (i = 0; i < argc; ++i) {
81568 + if (!(strcmp(argv[i].key, "no-constify"))) {
81569 + constify = false;
81570 + continue;
81571 + }
81572 + error(G_("unkown option '-fplugin-arg-%s-%s'"), plugin_name, argv[i].key);
81573 + }
81574 +
81575 + register_callback(plugin_name, PLUGIN_INFO, NULL, &const_plugin_info);
81576 + if (constify) {
81577 + register_callback(plugin_name, PLUGIN_FINISH_TYPE, finish_type, NULL);
81578 + register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &local_variable_pass_info);
81579 + }
81580 + register_callback(plugin_name, PLUGIN_ATTRIBUTES, register_attributes, NULL);
81581 +
81582 + return 0;
81583 +}
81584 diff --git a/tools/gcc/generate_size_overflow_hash.sh b/tools/gcc/generate_size_overflow_hash.sh
81585 new file mode 100644
81586 index 0000000..68b646e
81587 --- /dev/null
81588 +++ b/tools/gcc/generate_size_overflow_hash.sh
81589 @@ -0,0 +1,94 @@
81590 +#!/bin/bash
81591 +
81592 +# This script generates the hash table (size_overflow_hash.h) for the size_overflow gcc plugin (size_overflow_plugin.c).
81593 +
81594 +header1="size_overflow_hash.h"
81595 +database="size_overflow_hash.data"
81596 +n=65536
81597 +
81598 +usage() {
81599 +cat <<EOF
81600 +usage: $0 options
81601 +OPTIONS:
81602 + -h|--help help
81603 + -o header file
81604 + -d database file
81605 + -n hash array size
81606 +EOF
81607 + return 0
81608 +}
81609 +
81610 +while true
81611 +do
81612 + case "$1" in
81613 + -h|--help) usage && exit 0;;
81614 + -n) n=$2; shift 2;;
81615 + -o) header1="$2"; shift 2;;
81616 + -d) database="$2"; shift 2;;
81617 + --) shift 1; break ;;
81618 + *) break ;;
81619 + esac
81620 +done
81621 +
81622 +create_defines() {
81623 + for i in `seq 1 10`
81624 + do
81625 + echo -e "#define PARAM"$i" (1U << "$i")" >> "$header1"
81626 + done
81627 + echo >> "$header1"
81628 +}
81629 +
81630 +create_structs () {
81631 + rm -f "$header1"
81632 +
81633 + create_defines
81634 +
81635 + cat "$database" | while read data
81636 + do
81637 + data_array=($data)
81638 + struct_hash_name="${data_array[0]}"
81639 + funcn="${data_array[1]}"
81640 + params="${data_array[2]}"
81641 + next="${data_array[5]}"
81642 +
81643 + echo "const struct size_overflow_hash $struct_hash_name = {" >> "$header1"
81644 +
81645 + echo -e "\t.next\t= $next,\n\t.name\t= \"$funcn\"," >> "$header1"
81646 + echo -en "\t.param\t= " >> "$header1"
81647 + line=
81648 + for param_num in ${params//-/ };
81649 + do
81650 + line="${line}PARAM"$param_num"|"
81651 + done
81652 +
81653 + echo -e "${line%?},\n};\n" >> "$header1"
81654 + done
81655 +}
81656 +
81657 +create_headers () {
81658 + echo "const struct size_overflow_hash * const size_overflow_hash[$n] = {" >> "$header1"
81659 +}
81660 +
81661 +create_array_elements () {
81662 + index=0
81663 + grep -v "nohasharray" $database | sort -n -k 4 | while read data
81664 + do
81665 + data_array=($data)
81666 + i="${data_array[3]}"
81667 + hash="${data_array[4]}"
81668 + while [[ $index -lt $i ]]
81669 + do
81670 + echo -e "\t["$index"]\t= NULL," >> "$header1"
81671 + index=$(($index + 1))
81672 + done
81673 + index=$(($index + 1))
81674 + echo -e "\t["$i"]\t= &"$hash"," >> "$header1"
81675 + done
81676 + echo '};' >> $header1
81677 +}
81678 +
81679 +create_structs
81680 +create_headers
81681 +create_array_elements
81682 +
81683 +exit 0
81684 diff --git a/tools/gcc/kallocstat_plugin.c b/tools/gcc/kallocstat_plugin.c
81685 new file mode 100644
81686 index 0000000..a86e422
81687 --- /dev/null
81688 +++ b/tools/gcc/kallocstat_plugin.c
81689 @@ -0,0 +1,167 @@
81690 +/*
81691 + * Copyright 2011 by the PaX Team <pageexec@freemail.hu>
81692 + * Licensed under the GPL v2
81693 + *
81694 + * Note: the choice of the license means that the compilation process is
81695 + * NOT 'eligible' as defined by gcc's library exception to the GPL v3,
81696 + * but for the kernel it doesn't matter since it doesn't link against
81697 + * any of the gcc libraries
81698 + *
81699 + * gcc plugin to find the distribution of k*alloc sizes
81700 + *
81701 + * TODO:
81702 + *
81703 + * BUGS:
81704 + * - none known
81705 + */
81706 +#include "gcc-plugin.h"
81707 +#include "config.h"
81708 +#include "system.h"
81709 +#include "coretypes.h"
81710 +#include "tree.h"
81711 +#include "tree-pass.h"
81712 +#include "flags.h"
81713 +#include "intl.h"
81714 +#include "toplev.h"
81715 +#include "plugin.h"
81716 +//#include "expr.h" where are you...
81717 +#include "diagnostic.h"
81718 +#include "plugin-version.h"
81719 +#include "tm.h"
81720 +#include "function.h"
81721 +#include "basic-block.h"
81722 +#include "gimple.h"
81723 +#include "rtl.h"
81724 +#include "emit-rtl.h"
81725 +
81726 +extern void print_gimple_stmt(FILE *, gimple, int, int);
81727 +
81728 +int plugin_is_GPL_compatible;
81729 +
81730 +static const char * const kalloc_functions[] = {
81731 + "__kmalloc",
81732 + "kmalloc",
81733 + "kmalloc_large",
81734 + "kmalloc_node",
81735 + "kmalloc_order",
81736 + "kmalloc_order_trace",
81737 + "kmalloc_slab",
81738 + "kzalloc",
81739 + "kzalloc_node",
81740 +};
81741 +
81742 +static struct plugin_info kallocstat_plugin_info = {
81743 + .version = "201111150100",
81744 +};
81745 +
81746 +static unsigned int execute_kallocstat(void);
81747 +
81748 +static struct gimple_opt_pass kallocstat_pass = {
81749 + .pass = {
81750 + .type = GIMPLE_PASS,
81751 + .name = "kallocstat",
81752 + .gate = NULL,
81753 + .execute = execute_kallocstat,
81754 + .sub = NULL,
81755 + .next = NULL,
81756 + .static_pass_number = 0,
81757 + .tv_id = TV_NONE,
81758 + .properties_required = 0,
81759 + .properties_provided = 0,
81760 + .properties_destroyed = 0,
81761 + .todo_flags_start = 0,
81762 + .todo_flags_finish = 0
81763 + }
81764 +};
81765 +
81766 +static bool is_kalloc(const char *fnname)
81767 +{
81768 + size_t i;
81769 +
81770 + for (i = 0; i < ARRAY_SIZE(kalloc_functions); i++)
81771 + if (!strcmp(fnname, kalloc_functions[i]))
81772 + return true;
81773 + return false;
81774 +}
81775 +
81776 +static unsigned int execute_kallocstat(void)
81777 +{
81778 + basic_block bb;
81779 +
81780 + // 1. loop through BBs and GIMPLE statements
81781 + FOR_EACH_BB(bb) {
81782 + gimple_stmt_iterator gsi;
81783 + for (gsi = gsi_start_bb(bb); !gsi_end_p(gsi); gsi_next(&gsi)) {
81784 + // gimple match:
81785 + tree fndecl, size;
81786 + gimple call_stmt;
81787 + const char *fnname;
81788 +
81789 + // is it a call
81790 + call_stmt = gsi_stmt(gsi);
81791 + if (!is_gimple_call(call_stmt))
81792 + continue;
81793 + fndecl = gimple_call_fndecl(call_stmt);
81794 + if (fndecl == NULL_TREE)
81795 + continue;
81796 + if (TREE_CODE(fndecl) != FUNCTION_DECL)
81797 + continue;
81798 +
81799 + // is it a call to k*alloc
81800 + fnname = IDENTIFIER_POINTER(DECL_NAME(fndecl));
81801 + if (!is_kalloc(fnname))
81802 + continue;
81803 +
81804 + // is the size arg the result of a simple const assignment
81805 + size = gimple_call_arg(call_stmt, 0);
81806 + while (true) {
81807 + gimple def_stmt;
81808 + expanded_location xloc;
81809 + size_t size_val;
81810 +
81811 + if (TREE_CODE(size) != SSA_NAME)
81812 + break;
81813 + def_stmt = SSA_NAME_DEF_STMT(size);
81814 + if (!def_stmt || !is_gimple_assign(def_stmt))
81815 + break;
81816 + if (gimple_num_ops(def_stmt) != 2)
81817 + break;
81818 + size = gimple_assign_rhs1(def_stmt);
81819 + if (!TREE_CONSTANT(size))
81820 + continue;
81821 + xloc = expand_location(gimple_location(def_stmt));
81822 + if (!xloc.file)
81823 + xloc = expand_location(DECL_SOURCE_LOCATION(current_function_decl));
81824 + size_val = TREE_INT_CST_LOW(size);
81825 + fprintf(stderr, "kallocsize: %8zu %8zx %s %s:%u\n", size_val, size_val, fnname, xloc.file, xloc.line);
81826 + break;
81827 + }
81828 +//print_gimple_stmt(stderr, call_stmt, 0, TDF_LINENO);
81829 +//debug_tree(gimple_call_fn(call_stmt));
81830 +//print_node(stderr, "pax", fndecl, 4);
81831 + }
81832 + }
81833 +
81834 + return 0;
81835 +}
81836 +
81837 +int plugin_init(struct plugin_name_args *plugin_info, struct plugin_gcc_version *version)
81838 +{
81839 + const char * const plugin_name = plugin_info->base_name;
81840 + struct register_pass_info kallocstat_pass_info = {
81841 + .pass = &kallocstat_pass.pass,
81842 + .reference_pass_name = "ssa",
81843 + .ref_pass_instance_number = 1,
81844 + .pos_op = PASS_POS_INSERT_AFTER
81845 + };
81846 +
81847 + if (!plugin_default_version_check(version, &gcc_version)) {
81848 + error(G_("incompatible gcc/plugin versions"));
81849 + return 1;
81850 + }
81851 +
81852 + register_callback(plugin_name, PLUGIN_INFO, NULL, &kallocstat_plugin_info);
81853 + register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &kallocstat_pass_info);
81854 +
81855 + return 0;
81856 +}
81857 diff --git a/tools/gcc/kernexec_plugin.c b/tools/gcc/kernexec_plugin.c
81858 new file mode 100644
81859 index 0000000..98011fa
81860 --- /dev/null
81861 +++ b/tools/gcc/kernexec_plugin.c
81862 @@ -0,0 +1,427 @@
81863 +/*
81864 + * Copyright 2011 by the PaX Team <pageexec@freemail.hu>
81865 + * Licensed under the GPL v2
81866 + *
81867 + * Note: the choice of the license means that the compilation process is
81868 + * NOT 'eligible' as defined by gcc's library exception to the GPL v3,
81869 + * but for the kernel it doesn't matter since it doesn't link against
81870 + * any of the gcc libraries
81871 + *
81872 + * gcc plugin to make KERNEXEC/amd64 almost as good as it is on i386
81873 + *
81874 + * TODO:
81875 + *
81876 + * BUGS:
81877 + * - none known
81878 + */
81879 +#include "gcc-plugin.h"
81880 +#include "config.h"
81881 +#include "system.h"
81882 +#include "coretypes.h"
81883 +#include "tree.h"
81884 +#include "tree-pass.h"
81885 +#include "flags.h"
81886 +#include "intl.h"
81887 +#include "toplev.h"
81888 +#include "plugin.h"
81889 +//#include "expr.h" where are you...
81890 +#include "diagnostic.h"
81891 +#include "plugin-version.h"
81892 +#include "tm.h"
81893 +#include "function.h"
81894 +#include "basic-block.h"
81895 +#include "gimple.h"
81896 +#include "rtl.h"
81897 +#include "emit-rtl.h"
81898 +#include "tree-flow.h"
81899 +
81900 +extern void print_gimple_stmt(FILE *, gimple, int, int);
81901 +extern rtx emit_move_insn(rtx x, rtx y);
81902 +
81903 +int plugin_is_GPL_compatible;
81904 +
81905 +static struct plugin_info kernexec_plugin_info = {
81906 + .version = "201111291120",
81907 + .help = "method=[bts|or]\tinstrumentation method\n"
81908 +};
81909 +
81910 +static unsigned int execute_kernexec_reload(void);
81911 +static unsigned int execute_kernexec_fptr(void);
81912 +static unsigned int execute_kernexec_retaddr(void);
81913 +static bool kernexec_cmodel_check(void);
81914 +
81915 +static void (*kernexec_instrument_fptr)(gimple_stmt_iterator *);
81916 +static void (*kernexec_instrument_retaddr)(rtx);
81917 +
81918 +static struct gimple_opt_pass kernexec_reload_pass = {
81919 + .pass = {
81920 + .type = GIMPLE_PASS,
81921 + .name = "kernexec_reload",
81922 + .gate = kernexec_cmodel_check,
81923 + .execute = execute_kernexec_reload,
81924 + .sub = NULL,
81925 + .next = NULL,
81926 + .static_pass_number = 0,
81927 + .tv_id = TV_NONE,
81928 + .properties_required = 0,
81929 + .properties_provided = 0,
81930 + .properties_destroyed = 0,
81931 + .todo_flags_start = 0,
81932 + .todo_flags_finish = TODO_verify_ssa | TODO_verify_stmts | TODO_dump_func | TODO_remove_unused_locals | TODO_update_ssa_no_phi
81933 + }
81934 +};
81935 +
81936 +static struct gimple_opt_pass kernexec_fptr_pass = {
81937 + .pass = {
81938 + .type = GIMPLE_PASS,
81939 + .name = "kernexec_fptr",
81940 + .gate = kernexec_cmodel_check,
81941 + .execute = execute_kernexec_fptr,
81942 + .sub = NULL,
81943 + .next = NULL,
81944 + .static_pass_number = 0,
81945 + .tv_id = TV_NONE,
81946 + .properties_required = 0,
81947 + .properties_provided = 0,
81948 + .properties_destroyed = 0,
81949 + .todo_flags_start = 0,
81950 + .todo_flags_finish = TODO_verify_ssa | TODO_verify_stmts | TODO_dump_func | TODO_remove_unused_locals | TODO_update_ssa_no_phi
81951 + }
81952 +};
81953 +
81954 +static struct rtl_opt_pass kernexec_retaddr_pass = {
81955 + .pass = {
81956 + .type = RTL_PASS,
81957 + .name = "kernexec_retaddr",
81958 + .gate = kernexec_cmodel_check,
81959 + .execute = execute_kernexec_retaddr,
81960 + .sub = NULL,
81961 + .next = NULL,
81962 + .static_pass_number = 0,
81963 + .tv_id = TV_NONE,
81964 + .properties_required = 0,
81965 + .properties_provided = 0,
81966 + .properties_destroyed = 0,
81967 + .todo_flags_start = 0,
81968 + .todo_flags_finish = TODO_dump_func | TODO_ggc_collect
81969 + }
81970 +};
81971 +
81972 +static bool kernexec_cmodel_check(void)
81973 +{
81974 + tree section;
81975 +
81976 + if (ix86_cmodel != CM_KERNEL)
81977 + return false;
81978 +
81979 + section = lookup_attribute("section", DECL_ATTRIBUTES(current_function_decl));
81980 + if (!section || !TREE_VALUE(section))
81981 + return true;
81982 +
81983 + section = TREE_VALUE(TREE_VALUE(section));
81984 + if (strncmp(TREE_STRING_POINTER(section), ".vsyscall_", 10))
81985 + return true;
81986 +
81987 + return false;
81988 +}
81989 +
81990 +/*
81991 + * add special KERNEXEC instrumentation: reload %r10 after it has been clobbered
81992 + */
81993 +static void kernexec_reload_fptr_mask(gimple_stmt_iterator *gsi)
81994 +{
81995 + gimple asm_movabs_stmt;
81996 +
81997 + // build asm volatile("movabs $0x8000000000000000, %%r10\n\t" : : : );
81998 + asm_movabs_stmt = gimple_build_asm_vec("movabs $0x8000000000000000, %%r10\n\t", NULL, NULL, NULL, NULL);
81999 + gimple_asm_set_volatile(asm_movabs_stmt, true);
82000 + gsi_insert_after(gsi, asm_movabs_stmt, GSI_CONTINUE_LINKING);
82001 + update_stmt(asm_movabs_stmt);
82002 +}
82003 +
82004 +/*
82005 + * find all asm() stmts that clobber r10 and add a reload of r10
82006 + */
82007 +static unsigned int execute_kernexec_reload(void)
82008 +{
82009 + basic_block bb;
82010 +
82011 + // 1. loop through BBs and GIMPLE statements
82012 + FOR_EACH_BB(bb) {
82013 + gimple_stmt_iterator gsi;
82014 +
82015 + for (gsi = gsi_start_bb(bb); !gsi_end_p(gsi); gsi_next(&gsi)) {
82016 + // gimple match: __asm__ ("" : : : "r10");
82017 + gimple asm_stmt;
82018 + size_t nclobbers;
82019 +
82020 + // is it an asm ...
82021 + asm_stmt = gsi_stmt(gsi);
82022 + if (gimple_code(asm_stmt) != GIMPLE_ASM)
82023 + continue;
82024 +
82025 + // ... clobbering r10
82026 + nclobbers = gimple_asm_nclobbers(asm_stmt);
82027 + while (nclobbers--) {
82028 + tree op = gimple_asm_clobber_op(asm_stmt, nclobbers);
82029 + if (strcmp(TREE_STRING_POINTER(TREE_VALUE(op)), "r10"))
82030 + continue;
82031 + kernexec_reload_fptr_mask(&gsi);
82032 +//print_gimple_stmt(stderr, asm_stmt, 0, TDF_LINENO);
82033 + break;
82034 + }
82035 + }
82036 + }
82037 +
82038 + return 0;
82039 +}
82040 +
82041 +/*
82042 + * add special KERNEXEC instrumentation: force MSB of fptr to 1, which will produce
82043 + * a non-canonical address from a userland ptr and will just trigger a GPF on dereference
82044 + */
82045 +static void kernexec_instrument_fptr_bts(gimple_stmt_iterator *gsi)
82046 +{
82047 + gimple assign_intptr, assign_new_fptr, call_stmt;
82048 + tree intptr, old_fptr, new_fptr, kernexec_mask;
82049 +
82050 + call_stmt = gsi_stmt(*gsi);
82051 + old_fptr = gimple_call_fn(call_stmt);
82052 +
82053 + // create temporary unsigned long variable used for bitops and cast fptr to it
82054 + intptr = create_tmp_var(long_unsigned_type_node, "kernexec_bts");
82055 + add_referenced_var(intptr);
82056 + mark_sym_for_renaming(intptr);
82057 + assign_intptr = gimple_build_assign(intptr, fold_convert(long_unsigned_type_node, old_fptr));
82058 + gsi_insert_before(gsi, assign_intptr, GSI_SAME_STMT);
82059 + update_stmt(assign_intptr);
82060 +
82061 + // apply logical or to temporary unsigned long and bitmask
82062 + kernexec_mask = build_int_cstu(long_long_unsigned_type_node, 0x8000000000000000LL);
82063 +// kernexec_mask = build_int_cstu(long_long_unsigned_type_node, 0xffffffff80000000LL);
82064 + assign_intptr = gimple_build_assign(intptr, fold_build2(BIT_IOR_EXPR, long_long_unsigned_type_node, intptr, kernexec_mask));
82065 + gsi_insert_before(gsi, assign_intptr, GSI_SAME_STMT);
82066 + update_stmt(assign_intptr);
82067 +
82068 + // cast temporary unsigned long back to a temporary fptr variable
82069 + new_fptr = create_tmp_var(TREE_TYPE(old_fptr), "kernexec_fptr");
82070 + add_referenced_var(new_fptr);
82071 + mark_sym_for_renaming(new_fptr);
82072 + assign_new_fptr = gimple_build_assign(new_fptr, fold_convert(TREE_TYPE(old_fptr), intptr));
82073 + gsi_insert_before(gsi, assign_new_fptr, GSI_SAME_STMT);
82074 + update_stmt(assign_new_fptr);
82075 +
82076 + // replace call stmt fn with the new fptr
82077 + gimple_call_set_fn(call_stmt, new_fptr);
82078 + update_stmt(call_stmt);
82079 +}
82080 +
82081 +static void kernexec_instrument_fptr_or(gimple_stmt_iterator *gsi)
82082 +{
82083 + gimple asm_or_stmt, call_stmt;
82084 + tree old_fptr, new_fptr, input, output;
82085 + VEC(tree, gc) *inputs = NULL;
82086 + VEC(tree, gc) *outputs = NULL;
82087 +
82088 + call_stmt = gsi_stmt(*gsi);
82089 + old_fptr = gimple_call_fn(call_stmt);
82090 +
82091 + // create temporary fptr variable
82092 + new_fptr = create_tmp_var(TREE_TYPE(old_fptr), "kernexec_or");
82093 + add_referenced_var(new_fptr);
82094 + mark_sym_for_renaming(new_fptr);
82095 +
82096 + // build asm volatile("orq %%r10, %0\n\t" : "=r"(new_fptr) : "0"(old_fptr));
82097 + input = build_tree_list(NULL_TREE, build_string(2, "0"));
82098 + input = chainon(NULL_TREE, build_tree_list(input, old_fptr));
82099 + output = build_tree_list(NULL_TREE, build_string(3, "=r"));
82100 + output = chainon(NULL_TREE, build_tree_list(output, new_fptr));
82101 + VEC_safe_push(tree, gc, inputs, input);
82102 + VEC_safe_push(tree, gc, outputs, output);
82103 + asm_or_stmt = gimple_build_asm_vec("orq %%r10, %0\n\t", inputs, outputs, NULL, NULL);
82104 + gimple_asm_set_volatile(asm_or_stmt, true);
82105 + gsi_insert_before(gsi, asm_or_stmt, GSI_SAME_STMT);
82106 + update_stmt(asm_or_stmt);
82107 +
82108 + // replace call stmt fn with the new fptr
82109 + gimple_call_set_fn(call_stmt, new_fptr);
82110 + update_stmt(call_stmt);
82111 +}
82112 +
82113 +/*
82114 + * find all C level function pointer dereferences and forcibly set the highest bit of the pointer
82115 + */
82116 +static unsigned int execute_kernexec_fptr(void)
82117 +{
82118 + basic_block bb;
82119 +
82120 + // 1. loop through BBs and GIMPLE statements
82121 + FOR_EACH_BB(bb) {
82122 + gimple_stmt_iterator gsi;
82123 +
82124 + for (gsi = gsi_start_bb(bb); !gsi_end_p(gsi); gsi_next(&gsi)) {
82125 + // gimple match: h_1 = get_fptr (); D.2709_3 = h_1 (x_2(D));
82126 + tree fn;
82127 + gimple call_stmt;
82128 +
82129 + // is it a call ...
82130 + call_stmt = gsi_stmt(gsi);
82131 + if (!is_gimple_call(call_stmt))
82132 + continue;
82133 + fn = gimple_call_fn(call_stmt);
82134 + if (TREE_CODE(fn) == ADDR_EXPR)
82135 + continue;
82136 + if (TREE_CODE(fn) != SSA_NAME)
82137 + gcc_unreachable();
82138 +
82139 + // ... through a function pointer
82140 + fn = SSA_NAME_VAR(fn);
82141 + if (TREE_CODE(fn) != VAR_DECL && TREE_CODE(fn) != PARM_DECL)
82142 + continue;
82143 + fn = TREE_TYPE(fn);
82144 + if (TREE_CODE(fn) != POINTER_TYPE)
82145 + continue;
82146 + fn = TREE_TYPE(fn);
82147 + if (TREE_CODE(fn) != FUNCTION_TYPE)
82148 + continue;
82149 +
82150 + kernexec_instrument_fptr(&gsi);
82151 +
82152 +//debug_tree(gimple_call_fn(call_stmt));
82153 +//print_gimple_stmt(stderr, call_stmt, 0, TDF_LINENO);
82154 + }
82155 + }
82156 +
82157 + return 0;
82158 +}
82159 +
82160 +// add special KERNEXEC instrumentation: btsq $63,(%rsp) just before retn
82161 +static void kernexec_instrument_retaddr_bts(rtx insn)
82162 +{
82163 + rtx btsq;
82164 + rtvec argvec, constraintvec, labelvec;
82165 + int line;
82166 +
82167 + // create asm volatile("btsq $63,(%%rsp)":::)
82168 + argvec = rtvec_alloc(0);
82169 + constraintvec = rtvec_alloc(0);
82170 + labelvec = rtvec_alloc(0);
82171 + line = expand_location(RTL_LOCATION(insn)).line;
82172 + btsq = gen_rtx_ASM_OPERANDS(VOIDmode, "btsq $63,(%%rsp)", empty_string, 0, argvec, constraintvec, labelvec, line);
82173 + MEM_VOLATILE_P(btsq) = 1;
82174 +// RTX_FRAME_RELATED_P(btsq) = 1; // not for ASM_OPERANDS
82175 + emit_insn_before(btsq, insn);
82176 +}
82177 +
82178 +// add special KERNEXEC instrumentation: orq %r10,(%rsp) just before retn
82179 +static void kernexec_instrument_retaddr_or(rtx insn)
82180 +{
82181 + rtx orq;
82182 + rtvec argvec, constraintvec, labelvec;
82183 + int line;
82184 +
82185 + // create asm volatile("orq %%r10,(%%rsp)":::)
82186 + argvec = rtvec_alloc(0);
82187 + constraintvec = rtvec_alloc(0);
82188 + labelvec = rtvec_alloc(0);
82189 + line = expand_location(RTL_LOCATION(insn)).line;
82190 + orq = gen_rtx_ASM_OPERANDS(VOIDmode, "orq %%r10,(%%rsp)", empty_string, 0, argvec, constraintvec, labelvec, line);
82191 + MEM_VOLATILE_P(orq) = 1;
82192 +// RTX_FRAME_RELATED_P(orq) = 1; // not for ASM_OPERANDS
82193 + emit_insn_before(orq, insn);
82194 +}
82195 +
82196 +/*
82197 + * find all asm level function returns and forcibly set the highest bit of the return address
82198 + */
82199 +static unsigned int execute_kernexec_retaddr(void)
82200 +{
82201 + rtx insn;
82202 +
82203 + // 1. find function returns
82204 + for (insn = get_insns(); insn; insn = NEXT_INSN(insn)) {
82205 + // rtl match: (jump_insn 41 40 42 2 (return) fptr.c:42 634 {return_internal} (nil))
82206 + // (jump_insn 12 9 11 2 (parallel [ (return) (unspec [ (0) ] UNSPEC_REP) ]) fptr.c:46 635 {return_internal_long} (nil))
82207 + rtx body;
82208 +
82209 + // is it a retn
82210 + if (!JUMP_P(insn))
82211 + continue;
82212 + body = PATTERN(insn);
82213 + if (GET_CODE(body) == PARALLEL)
82214 + body = XVECEXP(body, 0, 0);
82215 + if (GET_CODE(body) != RETURN)
82216 + continue;
82217 + kernexec_instrument_retaddr(insn);
82218 + }
82219 +
82220 +// print_simple_rtl(stderr, get_insns());
82221 +// print_rtl(stderr, get_insns());
82222 +
82223 + return 0;
82224 +}
82225 +
82226 +int plugin_init(struct plugin_name_args *plugin_info, struct plugin_gcc_version *version)
82227 +{
82228 + const char * const plugin_name = plugin_info->base_name;
82229 + const int argc = plugin_info->argc;
82230 + const struct plugin_argument * const argv = plugin_info->argv;
82231 + int i;
82232 + struct register_pass_info kernexec_reload_pass_info = {
82233 + .pass = &kernexec_reload_pass.pass,
82234 + .reference_pass_name = "ssa",
82235 + .ref_pass_instance_number = 1,
82236 + .pos_op = PASS_POS_INSERT_AFTER
82237 + };
82238 + struct register_pass_info kernexec_fptr_pass_info = {
82239 + .pass = &kernexec_fptr_pass.pass,
82240 + .reference_pass_name = "ssa",
82241 + .ref_pass_instance_number = 1,
82242 + .pos_op = PASS_POS_INSERT_AFTER
82243 + };
82244 + struct register_pass_info kernexec_retaddr_pass_info = {
82245 + .pass = &kernexec_retaddr_pass.pass,
82246 + .reference_pass_name = "pro_and_epilogue",
82247 + .ref_pass_instance_number = 1,
82248 + .pos_op = PASS_POS_INSERT_AFTER
82249 + };
82250 +
82251 + if (!plugin_default_version_check(version, &gcc_version)) {
82252 + error(G_("incompatible gcc/plugin versions"));
82253 + return 1;
82254 + }
82255 +
82256 + register_callback(plugin_name, PLUGIN_INFO, NULL, &kernexec_plugin_info);
82257 +
82258 + if (TARGET_64BIT == 0)
82259 + return 0;
82260 +
82261 + for (i = 0; i < argc; ++i) {
82262 + if (!strcmp(argv[i].key, "method")) {
82263 + if (!argv[i].value) {
82264 + error(G_("no value supplied for option '-fplugin-arg-%s-%s'"), plugin_name, argv[i].key);
82265 + continue;
82266 + }
82267 + if (!strcmp(argv[i].value, "bts")) {
82268 + kernexec_instrument_fptr = kernexec_instrument_fptr_bts;
82269 + kernexec_instrument_retaddr = kernexec_instrument_retaddr_bts;
82270 + } else if (!strcmp(argv[i].value, "or")) {
82271 + kernexec_instrument_fptr = kernexec_instrument_fptr_or;
82272 + kernexec_instrument_retaddr = kernexec_instrument_retaddr_or;
82273 + fix_register("r10", 1, 1);
82274 + } else
82275 + error(G_("invalid option argument '-fplugin-arg-%s-%s=%s'"), plugin_name, argv[i].key, argv[i].value);
82276 + continue;
82277 + }
82278 + error(G_("unkown option '-fplugin-arg-%s-%s'"), plugin_name, argv[i].key);
82279 + }
82280 + if (!kernexec_instrument_fptr || !kernexec_instrument_retaddr)
82281 + error(G_("no instrumentation method was selected via '-fplugin-arg-%s-method'"), plugin_name);
82282 +
82283 + if (kernexec_instrument_fptr == kernexec_instrument_fptr_or)
82284 + register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &kernexec_reload_pass_info);
82285 + register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &kernexec_fptr_pass_info);
82286 + register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &kernexec_retaddr_pass_info);
82287 +
82288 + return 0;
82289 +}
82290 diff --git a/tools/gcc/latent_entropy_plugin.c b/tools/gcc/latent_entropy_plugin.c
82291 new file mode 100644
82292 index 0000000..b8008f7
82293 --- /dev/null
82294 +++ b/tools/gcc/latent_entropy_plugin.c
82295 @@ -0,0 +1,295 @@
82296 +/*
82297 + * Copyright 2012 by the PaX Team <pageexec@freemail.hu>
82298 + * Licensed under the GPL v2
82299 + *
82300 + * Note: the choice of the license means that the compilation process is
82301 + * NOT 'eligible' as defined by gcc's library exception to the GPL v3,
82302 + * but for the kernel it doesn't matter since it doesn't link against
82303 + * any of the gcc libraries
82304 + *
82305 + * gcc plugin to help generate a little bit of entropy from program state,
82306 + * used during boot in the kernel
82307 + *
82308 + * TODO:
82309 + * - add ipa pass to identify not explicitly marked candidate functions
82310 + * - mix in more program state (function arguments/return values, loop variables, etc)
82311 + * - more instrumentation control via attribute parameters
82312 + *
82313 + * BUGS:
82314 + * - LTO needs -flto-partition=none for now
82315 + */
82316 +#include "gcc-plugin.h"
82317 +#include "config.h"
82318 +#include "system.h"
82319 +#include "coretypes.h"
82320 +#include "tree.h"
82321 +#include "tree-pass.h"
82322 +#include "flags.h"
82323 +#include "intl.h"
82324 +#include "toplev.h"
82325 +#include "plugin.h"
82326 +//#include "expr.h" where are you...
82327 +#include "diagnostic.h"
82328 +#include "plugin-version.h"
82329 +#include "tm.h"
82330 +#include "function.h"
82331 +#include "basic-block.h"
82332 +#include "gimple.h"
82333 +#include "rtl.h"
82334 +#include "emit-rtl.h"
82335 +#include "tree-flow.h"
82336 +
82337 +int plugin_is_GPL_compatible;
82338 +
82339 +static tree latent_entropy_decl;
82340 +
82341 +static struct plugin_info latent_entropy_plugin_info = {
82342 + .version = "201207271820",
82343 + .help = NULL
82344 +};
82345 +
82346 +static unsigned int execute_latent_entropy(void);
82347 +static bool gate_latent_entropy(void);
82348 +
82349 +static struct gimple_opt_pass latent_entropy_pass = {
82350 + .pass = {
82351 + .type = GIMPLE_PASS,
82352 + .name = "latent_entropy",
82353 + .gate = gate_latent_entropy,
82354 + .execute = execute_latent_entropy,
82355 + .sub = NULL,
82356 + .next = NULL,
82357 + .static_pass_number = 0,
82358 + .tv_id = TV_NONE,
82359 + .properties_required = PROP_gimple_leh | PROP_cfg,
82360 + .properties_provided = 0,
82361 + .properties_destroyed = 0,
82362 + .todo_flags_start = 0, //TODO_verify_ssa | TODO_verify_flow | TODO_verify_stmts,
82363 + .todo_flags_finish = TODO_verify_ssa | TODO_verify_stmts | TODO_dump_func | TODO_update_ssa
82364 + }
82365 +};
82366 +
82367 +static tree handle_latent_entropy_attribute(tree *node, tree name, tree args, int flags, bool *no_add_attrs)
82368 +{
82369 + if (TREE_CODE(*node) != FUNCTION_DECL) {
82370 + *no_add_attrs = true;
82371 + error("%qE attribute only applies to functions", name);
82372 + }
82373 + return NULL_TREE;
82374 +}
82375 +
82376 +static struct attribute_spec latent_entropy_attr = {
82377 + .name = "latent_entropy",
82378 + .min_length = 0,
82379 + .max_length = 0,
82380 + .decl_required = true,
82381 + .type_required = false,
82382 + .function_type_required = false,
82383 + .handler = handle_latent_entropy_attribute,
82384 +#if BUILDING_GCC_VERSION >= 4007
82385 + .affects_type_identity = false
82386 +#endif
82387 +};
82388 +
82389 +static void register_attributes(void *event_data, void *data)
82390 +{
82391 + register_attribute(&latent_entropy_attr);
82392 +}
82393 +
82394 +static bool gate_latent_entropy(void)
82395 +{
82396 + tree latent_entropy_attr;
82397 +
82398 + latent_entropy_attr = lookup_attribute("latent_entropy", DECL_ATTRIBUTES(current_function_decl));
82399 + return latent_entropy_attr != NULL_TREE;
82400 +}
82401 +
82402 +static unsigned HOST_WIDE_INT seed;
82403 +static unsigned HOST_WIDE_INT get_random_const(void)
82404 +{
82405 + seed = (seed >> 1U) ^ (-(seed & 1ULL) & 0xD800000000000000ULL);
82406 + return seed;
82407 +}
82408 +
82409 +static enum tree_code get_op(tree *rhs)
82410 +{
82411 + static enum tree_code op;
82412 + unsigned HOST_WIDE_INT random_const;
82413 +
82414 + random_const = get_random_const();
82415 +
82416 + switch (op) {
82417 + case BIT_XOR_EXPR:
82418 + op = PLUS_EXPR;
82419 + break;
82420 +
82421 + case PLUS_EXPR:
82422 + if (rhs) {
82423 + op = LROTATE_EXPR;
82424 + random_const &= HOST_BITS_PER_WIDE_INT - 1;
82425 + break;
82426 + }
82427 +
82428 + case LROTATE_EXPR:
82429 + default:
82430 + op = BIT_XOR_EXPR;
82431 + break;
82432 + }
82433 + if (rhs)
82434 + *rhs = build_int_cstu(unsigned_intDI_type_node, random_const);
82435 + return op;
82436 +}
82437 +
82438 +static void perturb_local_entropy(basic_block bb, tree local_entropy)
82439 +{
82440 + gimple_stmt_iterator gsi;
82441 + gimple assign;
82442 + tree addxorrol, rhs;
82443 + enum tree_code op;
82444 +
82445 + op = get_op(&rhs);
82446 + addxorrol = fold_build2_loc(UNKNOWN_LOCATION, op, unsigned_intDI_type_node, local_entropy, rhs);
82447 + assign = gimple_build_assign(local_entropy, addxorrol);
82448 + find_referenced_vars_in(assign);
82449 +//debug_bb(bb);
82450 + gsi = gsi_after_labels(bb);
82451 + gsi_insert_before(&gsi, assign, GSI_NEW_STMT);
82452 + update_stmt(assign);
82453 +}
82454 +
82455 +static void perturb_latent_entropy(basic_block bb, tree rhs)
82456 +{
82457 + gimple_stmt_iterator gsi;
82458 + gimple assign;
82459 + tree addxorrol, temp;
82460 +
82461 + // 1. create temporary copy of latent_entropy
82462 + temp = create_tmp_var(unsigned_intDI_type_node, "temp_latent_entropy");
82463 + add_referenced_var(temp);
82464 + mark_sym_for_renaming(temp);
82465 +
82466 + // 2. read...
82467 + assign = gimple_build_assign(temp, latent_entropy_decl);
82468 + find_referenced_vars_in(assign);
82469 + gsi = gsi_after_labels(bb);
82470 + gsi_insert_after(&gsi, assign, GSI_NEW_STMT);
82471 + update_stmt(assign);
82472 +
82473 + // 3. ...modify...
82474 + addxorrol = fold_build2_loc(UNKNOWN_LOCATION, get_op(NULL), unsigned_intDI_type_node, temp, rhs);
82475 + assign = gimple_build_assign(temp, addxorrol);
82476 + find_referenced_vars_in(assign);
82477 + gsi_insert_after(&gsi, assign, GSI_NEW_STMT);
82478 + update_stmt(assign);
82479 +
82480 + // 4. ...write latent_entropy
82481 + assign = gimple_build_assign(latent_entropy_decl, temp);
82482 + find_referenced_vars_in(assign);
82483 + gsi_insert_after(&gsi, assign, GSI_NEW_STMT);
82484 + update_stmt(assign);
82485 +}
82486 +
82487 +static unsigned int execute_latent_entropy(void)
82488 +{
82489 + basic_block bb;
82490 + gimple assign;
82491 + gimple_stmt_iterator gsi;
82492 + tree local_entropy;
82493 +
82494 + if (!latent_entropy_decl) {
82495 + struct varpool_node *node;
82496 +
82497 + for (node = varpool_nodes; node; node = node->next) {
82498 + tree var = node->decl;
82499 + if (strcmp(IDENTIFIER_POINTER(DECL_NAME(var)), "latent_entropy"))
82500 + continue;
82501 + latent_entropy_decl = var;
82502 +// debug_tree(var);
82503 + break;
82504 + }
82505 + if (!latent_entropy_decl) {
82506 +// debug_tree(current_function_decl);
82507 + return 0;
82508 + }
82509 + }
82510 +
82511 +//fprintf(stderr, "latent_entropy: %s\n", IDENTIFIER_POINTER(DECL_NAME(current_function_decl)));
82512 +
82513 + // 1. create local entropy variable
82514 + local_entropy = create_tmp_var(unsigned_intDI_type_node, "local_entropy");
82515 + add_referenced_var(local_entropy);
82516 + mark_sym_for_renaming(local_entropy);
82517 +
82518 + // 2. initialize local entropy variable
82519 + bb = split_block_after_labels(ENTRY_BLOCK_PTR)->dest;
82520 + if (dom_info_available_p(CDI_DOMINATORS))
82521 + set_immediate_dominator(CDI_DOMINATORS, bb, ENTRY_BLOCK_PTR);
82522 + gsi = gsi_start_bb(bb);
82523 +
82524 + assign = gimple_build_assign(local_entropy, build_int_cstu(unsigned_intDI_type_node, get_random_const()));
82525 +// gimple_set_location(assign, loc);
82526 + find_referenced_vars_in(assign);
82527 + gsi_insert_after(&gsi, assign, GSI_NEW_STMT);
82528 + update_stmt(assign);
82529 + bb = bb->next_bb;
82530 +
82531 + // 3. instrument each BB with an operation on the local entropy variable
82532 + while (bb != EXIT_BLOCK_PTR) {
82533 + perturb_local_entropy(bb, local_entropy);
82534 + bb = bb->next_bb;
82535 + };
82536 +
82537 + // 4. mix local entropy into the global entropy variable
82538 + perturb_latent_entropy(EXIT_BLOCK_PTR->prev_bb, local_entropy);
82539 + return 0;
82540 +}
82541 +
82542 +static void start_unit_callback(void *gcc_data, void *user_data)
82543 +{
82544 +#if BUILDING_GCC_VERSION >= 4007
82545 + seed = get_random_seed(false);
82546 +#else
82547 + sscanf(get_random_seed(false), "%" HOST_WIDE_INT_PRINT "x", &seed);
82548 + seed *= seed;
82549 +#endif
82550 +
82551 + if (in_lto_p)
82552 + return;
82553 +
82554 + // extern u64 latent_entropy
82555 + latent_entropy_decl = build_decl(UNKNOWN_LOCATION, VAR_DECL, get_identifier("latent_entropy"), unsigned_intDI_type_node);
82556 +
82557 + TREE_STATIC(latent_entropy_decl) = 1;
82558 + TREE_PUBLIC(latent_entropy_decl) = 1;
82559 + TREE_USED(latent_entropy_decl) = 1;
82560 + TREE_THIS_VOLATILE(latent_entropy_decl) = 1;
82561 + DECL_EXTERNAL(latent_entropy_decl) = 1;
82562 + DECL_ARTIFICIAL(latent_entropy_decl) = 0;
82563 + DECL_INITIAL(latent_entropy_decl) = NULL;
82564 +// DECL_ASSEMBLER_NAME(latent_entropy_decl);
82565 +// varpool_finalize_decl(latent_entropy_decl);
82566 +// varpool_mark_needed_node(latent_entropy_decl);
82567 +}
82568 +
82569 +int plugin_init(struct plugin_name_args *plugin_info, struct plugin_gcc_version *version)
82570 +{
82571 + const char * const plugin_name = plugin_info->base_name;
82572 + struct register_pass_info latent_entropy_pass_info = {
82573 + .pass = &latent_entropy_pass.pass,
82574 + .reference_pass_name = "optimized",
82575 + .ref_pass_instance_number = 1,
82576 + .pos_op = PASS_POS_INSERT_BEFORE
82577 + };
82578 +
82579 + if (!plugin_default_version_check(version, &gcc_version)) {
82580 + error(G_("incompatible gcc/plugin versions"));
82581 + return 1;
82582 + }
82583 +
82584 + register_callback(plugin_name, PLUGIN_INFO, NULL, &latent_entropy_plugin_info);
82585 + register_callback ("start_unit", PLUGIN_START_UNIT, &start_unit_callback, NULL);
82586 + register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &latent_entropy_pass_info);
82587 + register_callback(plugin_name, PLUGIN_ATTRIBUTES, register_attributes, NULL);
82588 +
82589 + return 0;
82590 +}
82591 diff --git a/tools/gcc/size_overflow_hash.data b/tools/gcc/size_overflow_hash.data
82592 new file mode 100644
82593 index 0000000..036c9c6
82594 --- /dev/null
82595 +++ b/tools/gcc/size_overflow_hash.data
82596 @@ -0,0 +1,3057 @@
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84036 +_001539_hash t3_init_l2t 1 8261 _001539_hash NULL
84037 +_001540_hash team_options_register 3 20091 _001540_hash NULL
84038 +_001541_hash tipc_send2name 6 16809 _001541_hash NULL
84039 +_001542_hash tipc_send2port 5 63935 _001542_hash NULL
84040 +_001543_hash tipc_send 4 51238 _001543_hash NULL
84041 +_001544_hash tm6000_i2c_recv_regs16 5 2949 _001544_hash NULL
84042 +_001545_hash tm6000_i2c_recv_regs 5 46215 _001545_hash NULL
84043 +_001546_hash tm6000_i2c_send_regs 5 20250 _001546_hash NULL
84044 +_001547_hash tnode_new 3 44757 _001547_hash NULL
84045 +_001548_hash tomoyo_read_self 3 33539 _001548_hash NULL
84046 +_001549_hash tomoyo_update_domain 2 5498 _001549_hash NULL
84047 +_001550_hash tomoyo_update_policy 2 40458 _001550_hash NULL
84048 +_001551_hash tpm_read 3 50344 _001551_hash NULL
84049 +_001552_hash TSS_rawhmac 3 17486 _001552_hash NULL
84050 +_001553_hash tt3650_ci_msg 4 57219 _001553_hash NULL
84051 +_001554_hash tun_get_user 3 33178 _001554_hash NULL
84052 +_001555_hash ubi_dbg_dump_flash 4 3870 _001555_hash NULL
84053 +_001556_hash ubi_io_write 4-5 15870 _001556_hash &_000954_hash
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84055 +_001559_hash unix_seqpacket_sendmsg 4 27893 _001559_hash NULL
84056 +_001560_hash unlink1 3 63059 _001560_hash NULL
84057 +_001562_hash usb_allocate_stream_buffers 3 8964 _001562_hash NULL
84058 +_001563_hash usbdev_read 3 45114 _001563_hash NULL
84059 +_001564_hash usblp_read 3 57342 _001564_hash NULL
84060 +_001565_hash usbtmc_read 3 32377 _001565_hash NULL
84061 +_001566_hash usbvision_v4l2_read 3 34386 _001566_hash NULL
84062 +_001567_hash _usb_writeN_sync 4 31682 _001567_hash NULL
84063 +_001568_hash user_read 3 51881 _001568_hash NULL
84064 +_001569_hash v4l_stk_read 3 39672 _001569_hash NULL
84065 +_001570_hash vcs_read 3 8017 _001570_hash NULL
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84068 +_001573_hash venus_link 5 32165 _001573_hash NULL
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84072 +_001577_hash venus_rename 4-5 17707 _001577_hash NULL
84073 +_001579_hash venus_rmdir 4 45564 _001579_hash NULL
84074 +_001580_hash venus_symlink 4-6 23570 _001580_hash NULL
84075 +_001582_hash vfs_readlink 3 54368 _001582_hash NULL
84076 +_001583_hash vfs_readv 3 38011 _001583_hash NULL
84077 +_001584_hash vfs_writev 3 25278 _001584_hash NULL
84078 +_001585_hash vga_arb_read 3 4886 _001585_hash NULL
84079 +_001586_hash vhci_put_user 4 12604 _001586_hash NULL
84080 +_001587_hash vhost_add_used_n 3 10760 _001587_hash NULL
84081 +_001588_hash __videobuf_copy_to_user 4 15423 _001588_hash NULL
84082 +_001589_hash videobuf_pages_to_sg 2 3708 _001589_hash NULL
84083 +_001590_hash videobuf_vmalloc_to_sg 2 4548 _001590_hash NULL
84084 +_001591_hash virtnet_send_command 5-6 61993 _001591_hash NULL
84085 +_001593_hash vmbus_establish_gpadl 3 4495 _001593_hash NULL
84086 +_001594_hash vol_cdev_read 3 8968 _001594_hash &_001501_hash
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84088 +_001596_hash wdm_read 3 6549 _001596_hash NULL
84089 +_001597_hash wusb_prf 7 54261 _001597_hash &_000063_hash
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84091 +_001599_hash xfs_buf_get_uncached 2 51477 _001599_hash NULL
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84093 +_001601_hash xfs_efi_init 2 5476 _001601_hash NULL
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84095 +_001603_hash xfs_iext_realloc_indirect 2 59211 _001603_hash NULL
84096 +_001604_hash xfs_inumbers_fmt 3 12817 _001604_hash NULL
84097 +_001605_hash xlog_recover_add_to_cont_trans 4 44102 _001605_hash NULL
84098 +_001606_hash xz_dec_lzma2_create 2 36353 _002745_hash NULL nohasharray
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84100 +_001608_hash aat2870_reg_read_file 3 12221 _001608_hash NULL
84101 +_001609_hash add_sctp_bind_addr 3 12269 _001609_hash NULL
84102 +_001610_hash aes_decrypt_fail_read 3 54815 _001610_hash NULL
84103 +_001611_hash aes_decrypt_interrupt_read 3 19910 _001611_hash NULL
84104 +_001612_hash aes_decrypt_packets_read 3 10155 _001612_hash NULL
84105 +_001613_hash aes_encrypt_fail_read 3 32562 _001613_hash NULL
84106 +_001614_hash aes_encrypt_interrupt_read 3 39919 _001614_hash NULL
84107 +_001615_hash aes_encrypt_packets_read 3 48666 _001615_hash NULL
84108 +_001616_hash afs_cell_lookup 2 8482 _001616_hash NULL
84109 +_001617_hash agp_allocate_memory 2 58761 _001617_hash NULL
84110 +_001618_hash __alloc_bootmem 1 31498 _001618_hash NULL
84111 +_001619_hash __alloc_bootmem_low 1 43423 _003150_hash NULL nohasharray
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84114 +_001622_hash __alloc_ei_netdev 1 29338 _001622_hash NULL
84115 +_001623_hash __alloc_eip_netdev 1 51549 _001623_hash NULL
84116 +_001624_hash alloc_libipw 1 22708 _001624_hash NULL
84117 +_001625_hash alloc_pg_vec 2 8533 _001625_hash NULL
84118 +_001626_hash alloc_sja1000dev 1 17868 _001626_hash NULL
84119 +_001627_hash alloc_targets 2 8074 _001627_hash NULL
84120 +_001630_hash ath6kl_disconnect_timeout_read 3 3650 _001630_hash NULL
84121 +_001631_hash ath6kl_endpoint_stats_read 3 41554 _001631_hash NULL
84122 +_001632_hash ath6kl_fwlog_mask_read 3 2050 _001632_hash NULL
84123 +_001633_hash ath6kl_keepalive_read 3 44303 _001633_hash NULL
84124 +_001634_hash ath6kl_listen_int_read 3 10355 _001634_hash NULL
84125 +_001635_hash ath6kl_lrssi_roam_read 3 61022 _001635_hash NULL
84126 +_001636_hash ath6kl_regdump_read 3 14393 _001636_hash NULL
84127 +_001637_hash ath6kl_regread_read 3 25884 _001637_hash NULL
84128 +_001638_hash ath6kl_regwrite_read 3 48747 _001638_hash NULL
84129 +_001639_hash ath6kl_roam_table_read 3 26166 _001639_hash NULL
84130 +_001640_hash ath9k_debugfs_read_buf 3 25316 _001640_hash NULL
84131 +_001641_hash atk_debugfs_ggrp_read 3 29522 _001641_hash NULL
84132 +_001642_hash b43_debugfs_read 3 24425 _001642_hash NULL
84133 +_001643_hash b43legacy_debugfs_read 3 2473 _001643_hash NULL
84134 +_001644_hash bcm_recvmsg 4 43992 _001644_hash NULL
84135 +_001645_hash bfad_debugfs_read 3 13119 _001645_hash NULL
84136 +_001646_hash bfad_debugfs_read_regrd 3 57830 _001646_hash NULL
84137 +_001647_hash blk_init_tags 1 30592 _001647_hash NULL
84138 +_001648_hash blk_queue_init_tags 2 44355 _002686_hash NULL nohasharray
84139 +_001649_hash blk_rq_map_kern 4 47004 _001649_hash NULL
84140 +_001650_hash bm_entry_read 3 10976 _001650_hash NULL
84141 +_001651_hash bm_status_read 3 19583 _001651_hash NULL
84142 +_001652_hash bnad_debugfs_read 3 50665 _001652_hash NULL
84143 +_001653_hash bnad_debugfs_read_regrd 3 51308 _001653_hash NULL
84144 +_001654_hash btmrvl_curpsmode_read 3 46939 _001654_hash NULL
84145 +_001655_hash btmrvl_gpiogap_read 3 4718 _001655_hash NULL
84146 +_001656_hash btmrvl_hscfgcmd_read 3 56303 _001656_hash NULL
84147 +_001657_hash btmrvl_hscmd_read 3 1614 _001657_hash NULL
84148 +_001658_hash btmrvl_hsmode_read 3 1647 _001658_hash NULL
84149 +_001659_hash btmrvl_hsstate_read 3 920 _001659_hash NULL
84150 +_001660_hash btmrvl_pscmd_read 3 24308 _001660_hash NULL
84151 +_001661_hash btmrvl_psmode_read 3 22395 _001661_hash NULL
84152 +_001662_hash btmrvl_psstate_read 3 50683 _001662_hash NULL
84153 +_001663_hash btmrvl_txdnldready_read 3 413 _001663_hash NULL
84154 +_001664_hash btrfs_add_link 5 9973 _001664_hash NULL
84155 +_001665_hash btrfs_discard_extent 2 38547 _001665_hash NULL
84156 +_001666_hash btrfs_find_create_tree_block 3 55812 _001666_hash NULL
84157 +_001667_hash btrfsic_map_block 2 56751 _001667_hash NULL
84158 +_001668_hash caif_stream_recvmsg 4 13173 _001668_hash NULL
84159 +_001669_hash carl9170_alloc 1 27 _001669_hash NULL
84160 +_001670_hash carl9170_debugfs_read 3 47738 _001670_hash NULL
84161 +_001671_hash cgroup_read_s64 5 19570 _001671_hash NULL
84162 +_001672_hash cgroup_read_u64 5 45532 _001672_hash NULL
84163 +_001673_hash channel_type_read 3 47308 _001673_hash NULL
84164 +_001674_hash codec_list_read_file 3 24910 _001674_hash NULL
84165 +_001675_hash configfs_read_file 3 1683 _001675_hash NULL
84166 +_001676_hash cpuset_common_file_read 5 8800 _001676_hash NULL
84167 +_001677_hash create_subvol 4 2347 _001677_hash NULL
84168 +_001678_hash cx18_copy_mdl_to_user 4 45549 _001678_hash NULL
84169 +_001679_hash dai_list_read_file 3 25421 _001679_hash NULL
84170 +_001680_hash dapm_bias_read_file 3 64715 _001680_hash NULL
84171 +_001681_hash dapm_widget_power_read_file 3 59950 _001754_hash NULL nohasharray
84172 +_001684_hash dbgfs_frame 3 45917 _001684_hash NULL
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84174 +_001686_hash debugfs_read 3 62535 _001686_hash NULL
84175 +_001687_hash debug_output 3 18575 _001687_hash NULL
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84178 +_001690_hash dma_memcpy_pg_to_iovec 6 1725 _001690_hash NULL
84179 +_001691_hash dma_memcpy_to_iovec 5 12173 _001691_hash NULL
84180 +_001692_hash dma_rx_errors_read 3 52045 _001692_hash NULL
84181 +_001693_hash dma_rx_requested_read 3 65354 _001693_hash NULL
84182 +_001694_hash dma_show_regs 3 35266 _001694_hash NULL
84183 +_001695_hash dma_tx_errors_read 3 46060 _001695_hash NULL
84184 +_001696_hash dma_tx_requested_read 3 16110 _001775_hash NULL nohasharray
84185 +_001697_hash dm_exception_table_init 2 39645 _001697_hash &_001103_hash
84186 +_001698_hash dn_recvmsg 4 17213 _001698_hash NULL
84187 +_001699_hash dns_resolver_read 3 54658 _001699_hash NULL
84188 +_001700_hash do_msgrcv 4 5590 _001700_hash NULL
84189 +_001701_hash driver_state_read 3 17194 _001701_hash &_001394_hash
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84191 +_001703_hash dvb_dmxdev_buffer_read 4 20682 _001703_hash NULL
84192 +_001704_hash dvb_dvr_do_ioctl 3 43355 _001704_hash NULL
84193 +_001705_hash econet_recvmsg 4 40978 _001705_hash NULL
84194 +_001706_hash event_calibration_read 3 21083 _001706_hash NULL
84195 +_001707_hash event_heart_beat_read 3 48961 _001707_hash NULL
84196 +_001708_hash event_oom_late_read 3 61175 _001708_hash &_001014_hash
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84201 +_001713_hash event_tx_stuck_read 3 19305 _001713_hash NULL
84202 +_001714_hash excessive_retries_read 3 60425 _001714_hash NULL
84203 +_001715_hash fallback_on_nodma_alloc 2 35332 _001715_hash NULL
84204 +_001716_hash filter_read 3 61692 _001716_hash NULL
84205 +_001717_hash format_devstat_counter 3 32550 _001717_hash NULL
84206 +_001718_hash fragmentation_threshold_read 3 61718 _001718_hash NULL
84207 +_001719_hash fuse_conn_limit_read 3 20084 _001719_hash NULL
84208 +_001720_hash fuse_conn_waiting_read 3 49762 _001720_hash NULL
84209 +_001721_hash generic_readlink 3 32654 _001721_hash NULL
84210 +_001722_hash gpio_power_read 3 36059 _001722_hash NULL
84211 +_001723_hash hash_recvmsg 4 50924 _001723_hash NULL
84212 +_001724_hash ht40allow_map_read 3 55209 _002830_hash NULL nohasharray
84213 +_001725_hash hwflags_read 3 52318 _001725_hash NULL
84214 +_001726_hash hysdn_conf_read 3 42324 _003205_hash NULL nohasharray
84215 +_001727_hash i2400m_rx_stats_read 3 57706 _001727_hash NULL
84216 +_001728_hash i2400m_tx_stats_read 3 28527 _001728_hash NULL
84217 +_001729_hash idmouse_read 3 63374 _001729_hash NULL
84218 +_001730_hash ieee80211_if_read 3 6785 _001730_hash NULL
84219 +_001731_hash ieee80211_rx_bss_info 3 61630 _001731_hash NULL
84220 +_001732_hash ikconfig_read_current 3 1658 _001732_hash NULL
84221 +_001733_hash il3945_sta_dbgfs_stats_table_read 3 48802 _001733_hash NULL
84222 +_001734_hash il3945_ucode_general_stats_read 3 46111 _001734_hash NULL
84223 +_001735_hash il3945_ucode_rx_stats_read 3 3048 _001735_hash NULL
84224 +_001736_hash il3945_ucode_tx_stats_read 3 36016 _001736_hash NULL
84225 +_001737_hash il4965_rs_sta_dbgfs_rate_scale_data_read 3 37792 _001737_hash NULL
84226 +_001738_hash il4965_rs_sta_dbgfs_scale_table_read 3 38564 _001738_hash NULL
84227 +_001739_hash il4965_rs_sta_dbgfs_stats_table_read 3 49206 _001739_hash NULL
84228 +_001740_hash il4965_ucode_general_stats_read 3 56277 _001740_hash NULL
84229 +_001741_hash il4965_ucode_rx_stats_read 3 61948 _001741_hash NULL
84230 +_001742_hash il4965_ucode_tx_stats_read 3 12064 _001742_hash NULL
84231 +_001743_hash il_dbgfs_chain_noise_read 3 38044 _001743_hash NULL
84232 +_001744_hash il_dbgfs_channels_read 3 25005 _001744_hash NULL
84233 +_001745_hash il_dbgfs_disable_ht40_read 3 42386 _001745_hash NULL
84234 +_001746_hash il_dbgfs_fh_reg_read 3 40993 _001746_hash NULL
84235 +_001747_hash il_dbgfs_force_reset_read 3 57517 _001747_hash NULL
84236 +_001748_hash il_dbgfs_interrupt_read 3 3351 _001748_hash NULL
84237 +_001749_hash il_dbgfs_missed_beacon_read 3 59956 _001749_hash NULL
84238 +_001750_hash il_dbgfs_nvm_read 3 12288 _001750_hash NULL
84239 +_001751_hash il_dbgfs_power_save_status_read 3 43165 _001751_hash NULL
84240 +_001752_hash il_dbgfs_qos_read 3 33615 _001752_hash NULL
84241 +_001753_hash il_dbgfs_rxon_filter_flags_read 3 19281 _001753_hash NULL
84242 +_001754_hash il_dbgfs_rxon_flags_read 3 59950 _001754_hash &_001681_hash
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84244 +_001756_hash il_dbgfs_rx_stats_read 3 15243 _001756_hash NULL
84245 +_001757_hash il_dbgfs_sensitivity_read 3 2370 _001757_hash NULL
84246 +_001758_hash il_dbgfs_sram_read 3 62296 _001758_hash NULL
84247 +_001759_hash il_dbgfs_stations_read 3 21532 _001759_hash NULL
84248 +_001760_hash il_dbgfs_status_read 3 58388 _001760_hash NULL
84249 +_001761_hash il_dbgfs_tx_queue_read 3 55668 _001761_hash NULL
84250 +_001762_hash il_dbgfs_tx_stats_read 3 32913 _001762_hash NULL
84251 +_001763_hash ima_show_htable_value 2 57136 _001763_hash NULL
84252 +_001765_hash ipw_write 3 59807 _001765_hash NULL
84253 +_001766_hash irda_recvmsg_stream 4 35280 _001766_hash NULL
84254 +_001767_hash iscsi_tcp_conn_setup 2 16376 _001767_hash NULL
84255 +_001768_hash isr_cmd_cmplt_read 3 53439 _001768_hash NULL
84256 +_001769_hash isr_commands_read 3 41398 _001769_hash NULL
84257 +_001770_hash isr_decrypt_done_read 3 49490 _001770_hash NULL
84258 +_001771_hash isr_dma0_done_read 3 8574 _001771_hash NULL
84259 +_001772_hash isr_dma1_done_read 3 48159 _001772_hash NULL
84260 +_001773_hash isr_fiqs_read 3 34687 _001773_hash NULL
84261 +_001774_hash isr_host_acknowledges_read 3 54136 _001774_hash NULL
84262 +_001775_hash isr_hw_pm_mode_changes_read 3 16110 _001775_hash &_001696_hash
84263 +_001776_hash isr_irqs_read 3 9181 _001776_hash NULL
84264 +_001777_hash isr_low_rssi_read 3 64789 _001777_hash NULL
84265 +_001778_hash isr_pci_pm_read 3 30271 _001778_hash NULL
84266 +_001779_hash isr_rx_headers_read 3 38325 _001779_hash NULL
84267 +_001780_hash isr_rx_mem_overflow_read 3 43025 _001780_hash NULL
84268 +_001781_hash isr_rx_procs_read 3 31804 _001781_hash NULL
84269 +_001782_hash isr_rx_rdys_read 3 35283 _001782_hash NULL
84270 +_001783_hash isr_tx_exch_complete_read 3 16103 _001783_hash NULL
84271 +_001784_hash isr_tx_procs_read 3 23084 _001784_hash NULL
84272 +_001785_hash isr_wakeups_read 3 49607 _001785_hash NULL
84273 +_001786_hash ivtv_read 3 57796 _001786_hash NULL
84274 +_001787_hash iwl_dbgfs_bt_traffic_read 3 35534 _001787_hash NULL
84275 +_001788_hash iwl_dbgfs_chain_noise_read 3 46355 _001788_hash NULL
84276 +_001789_hash iwl_dbgfs_channels_read 3 6784 _001789_hash NULL
84277 +_001790_hash iwl_dbgfs_current_sleep_command_read 3 2081 _001790_hash NULL
84278 +_001791_hash iwl_dbgfs_disable_ht40_read 3 35761 _001791_hash NULL
84279 +_001792_hash iwl_dbgfs_fh_reg_read 3 879 _001792_hash &_000393_hash
84280 +_001793_hash iwl_dbgfs_force_reset_read 3 62628 _001793_hash NULL
84281 +_001794_hash iwl_dbgfs_interrupt_read 3 23574 _001794_hash NULL
84282 +_001795_hash iwl_dbgfs_log_event_read 3 2107 _001795_hash NULL
84283 +_001796_hash iwl_dbgfs_missed_beacon_read 3 50584 _001796_hash NULL
84284 +_001797_hash iwl_dbgfs_nvm_read 3 23845 _001797_hash NULL
84285 +_001798_hash iwl_dbgfs_plcp_delta_read 3 55407 _001798_hash NULL
84286 +_001799_hash iwl_dbgfs_power_save_status_read 3 54392 _001799_hash NULL
84287 +_001800_hash iwl_dbgfs_protection_mode_read 3 13943 _001800_hash NULL
84288 +_001801_hash iwl_dbgfs_qos_read 3 11753 _001801_hash NULL
84289 +_001802_hash iwl_dbgfs_reply_tx_error_read 3 19205 _001802_hash NULL
84290 +_001803_hash iwl_dbgfs_rx_handlers_read 3 18708 _001803_hash NULL
84291 +_001804_hash iwl_dbgfs_rxon_filter_flags_read 3 28832 _001804_hash NULL
84292 +_001805_hash iwl_dbgfs_rxon_flags_read 3 20795 _001805_hash NULL
84293 +_001806_hash iwl_dbgfs_rx_queue_read 3 19943 _001806_hash NULL
84294 +_001807_hash iwl_dbgfs_rx_statistics_read 3 62687 _001807_hash &_000425_hash
84295 +_001808_hash iwl_dbgfs_sensitivity_read 3 63116 _003026_hash NULL nohasharray
84296 +_001809_hash iwl_dbgfs_sleep_level_override_read 3 3038 _001809_hash NULL
84297 +_001810_hash iwl_dbgfs_sram_read 3 44505 _001810_hash NULL
84298 +_001811_hash iwl_dbgfs_stations_read 3 9309 _001811_hash NULL
84299 +_001812_hash iwl_dbgfs_status_read 3 5171 _001812_hash NULL
84300 +_001813_hash iwl_dbgfs_temperature_read 3 29224 _001813_hash NULL
84301 +_001814_hash iwl_dbgfs_thermal_throttling_read 3 38779 _001814_hash NULL
84302 +_001815_hash iwl_dbgfs_traffic_log_read 3 58870 _001815_hash NULL
84303 +_001816_hash iwl_dbgfs_tx_queue_read 3 4635 _001816_hash NULL
84304 +_001817_hash iwl_dbgfs_tx_statistics_read 3 314 _001817_hash NULL
84305 +_001818_hash iwl_dbgfs_ucode_bt_stats_read 3 42820 _001818_hash NULL
84306 +_001819_hash iwl_dbgfs_ucode_general_stats_read 3 49199 _001819_hash NULL
84307 +_001820_hash iwl_dbgfs_ucode_rx_stats_read 3 58023 _001820_hash NULL
84308 +_001821_hash iwl_dbgfs_ucode_tracing_read 3 47983 _001821_hash &_000349_hash
84309 +_001822_hash iwl_dbgfs_ucode_tx_stats_read 3 31611 _001822_hash NULL
84310 +_001823_hash iwl_dbgfs_wowlan_sram_read 3 540 _001823_hash NULL
84311 +_001824_hash iwm_if_alloc 1 17027 _001824_hash &_001314_hash
84312 +_001825_hash kernel_readv 3 35617 _001825_hash NULL
84313 +_001826_hash key_algorithm_read 3 57946 _001826_hash NULL
84314 +_001827_hash key_icverrors_read 3 20895 _001827_hash NULL
84315 +_001828_hash key_key_read 3 3241 _001828_hash NULL
84316 +_001829_hash key_replays_read 3 62746 _001829_hash NULL
84317 +_001830_hash key_rx_spec_read 3 12736 _001830_hash NULL
84318 +_001831_hash key_tx_spec_read 3 4862 _001831_hash NULL
84319 +_001832_hash __kfifo_to_user 3 36555 _002199_hash NULL nohasharray
84320 +_001833_hash __kfifo_to_user_r 3 39123 _001833_hash NULL
84321 +_001834_hash kmem_zalloc_greedy 2-3 65268 _001834_hash NULL
84322 +_001836_hash l2cap_chan_send 3 49995 _001836_hash NULL
84323 +_001837_hash l2cap_sar_segment_sdu 3 27701 _001837_hash NULL
84324 +_001838_hash lbs_debugfs_read 3 30721 _001838_hash NULL
84325 +_001839_hash lbs_dev_info 3 51023 _001839_hash NULL
84326 +_001840_hash lbs_host_sleep_read 3 31013 _001840_hash NULL
84327 +_001841_hash lbs_rdbbp_read 3 45805 _001841_hash NULL
84328 +_001842_hash lbs_rdmac_read 3 418 _001842_hash NULL
84329 +_001843_hash lbs_rdrf_read 3 41431 _001843_hash NULL
84330 +_001844_hash lbs_sleepparams_read 3 10840 _001844_hash NULL
84331 +_001845_hash lbs_threshold_read 5 21046 _001845_hash NULL
84332 +_001846_hash libfc_vport_create 2 4415 _001846_hash NULL
84333 +_001847_hash lkdtm_debugfs_read 3 45752 _001847_hash NULL
84334 +_001848_hash llcp_sock_recvmsg 4 13556 _001848_hash NULL
84335 +_001849_hash long_retry_limit_read 3 59766 _001849_hash NULL
84336 +_001850_hash lpfc_debugfs_dif_err_read 3 36303 _001850_hash NULL
84337 +_001851_hash lpfc_debugfs_read 3 16566 _001851_hash NULL
84338 +_001852_hash lpfc_idiag_baracc_read 3 58466 _002447_hash NULL nohasharray
84339 +_001853_hash lpfc_idiag_ctlacc_read 3 33943 _001853_hash NULL
84340 +_001854_hash lpfc_idiag_drbacc_read 3 15948 _001854_hash NULL
84341 +_001855_hash lpfc_idiag_extacc_read 3 48301 _001855_hash NULL
84342 +_001856_hash lpfc_idiag_mbxacc_read 3 28061 _001856_hash NULL
84343 +_001857_hash lpfc_idiag_pcicfg_read 3 50334 _001857_hash NULL
84344 +_001858_hash lpfc_idiag_queacc_read 3 13950 _001858_hash NULL
84345 +_001859_hash lpfc_idiag_queinfo_read 3 55662 _001859_hash NULL
84346 +_001860_hash mac80211_format_buffer 2 41010 _001860_hash NULL
84347 +_001861_hash macvtap_put_user 4 55609 _001861_hash NULL
84348 +_001862_hash macvtap_sendmsg 4 30629 _001862_hash NULL
84349 +_001863_hash mic_calc_failure_read 3 59700 _001863_hash NULL
84350 +_001864_hash mic_rx_pkts_read 3 27972 _001864_hash NULL
84351 +_001865_hash minstrel_stats_read 3 17290 _001865_hash NULL
84352 +_001866_hash mmc_ext_csd_read 3 13205 _001866_hash NULL
84353 +_001867_hash mon_bin_read 3 6841 _001867_hash NULL
84354 +_001868_hash mon_stat_read 3 25238 _001868_hash NULL
84355 +_001870_hash mqueue_read_file 3 6228 _001870_hash NULL
84356 +_001871_hash mwifiex_debug_read 3 53074 _001871_hash NULL
84357 +_001872_hash mwifiex_getlog_read 3 54269 _001872_hash NULL
84358 +_001873_hash mwifiex_info_read 3 53447 _001873_hash NULL
84359 +_001874_hash mwifiex_rdeeprom_read 3 51429 _001874_hash NULL
84360 +_001875_hash mwifiex_regrdwr_read 3 34472 _001875_hash NULL
84361 +_001876_hash nfsd_vfs_read 6 62605 _003003_hash NULL nohasharray
84362 +_001877_hash nfsd_vfs_write 6 54577 _001877_hash NULL
84363 +_001878_hash nfs_idmap_lookup_id 2 10660 _001878_hash NULL
84364 +_001879_hash o2hb_debug_read 3 37851 _001879_hash NULL
84365 +_001880_hash o2net_debug_read 3 52105 _001880_hash NULL
84366 +_001881_hash ocfs2_control_read 3 56405 _001881_hash NULL
84367 +_001882_hash ocfs2_debug_read 3 14507 _001882_hash NULL
84368 +_001883_hash ocfs2_readlink 3 50656 _001883_hash NULL
84369 +_001884_hash oom_adjust_read 3 25127 _001884_hash NULL
84370 +_001885_hash oom_score_adj_read 3 39921 _002116_hash NULL nohasharray
84371 +_001886_hash oprofilefs_str_to_user 3 42182 _001886_hash NULL
84372 +_001887_hash oprofilefs_ulong_to_user 3 11582 _001887_hash NULL
84373 +_001888_hash _osd_req_list_objects 6 4204 _001888_hash NULL
84374 +_001889_hash osd_req_read_kern 5 59990 _001889_hash NULL
84375 +_001890_hash osd_req_write_kern 5 53486 _001890_hash NULL
84376 +_001891_hash p54_init_common 1 23850 _001891_hash NULL
84377 +_001892_hash packet_sendmsg 4 24954 _001892_hash NULL
84378 +_001893_hash page_readlink 3 23346 _001893_hash NULL
84379 +_001894_hash pcf50633_write_block 3 2124 _001894_hash NULL
84380 +_001895_hash platform_list_read_file 3 34734 _001895_hash NULL
84381 +_001896_hash pm860x_bulk_write 3 43875 _001896_hash NULL
84382 +_001897_hash pm_qos_power_read 3 55891 _001897_hash NULL
84383 +_001898_hash pms_read 3 53873 _001898_hash NULL
84384 +_001899_hash port_show_regs 3 5904 _001899_hash NULL
84385 +_001900_hash proc_coredump_filter_read 3 39153 _001900_hash NULL
84386 +_001901_hash proc_fdinfo_read 3 62043 _001901_hash NULL
84387 +_001902_hash proc_info_read 3 63344 _001902_hash NULL
84388 +_001903_hash proc_loginuid_read 3 15631 _001903_hash NULL
84389 +_001904_hash proc_pid_attr_read 3 10173 _001904_hash NULL
84390 +_001905_hash proc_pid_readlink 3 52186 _001905_hash NULL
84391 +_001906_hash proc_read 3 43614 _001906_hash NULL
84392 +_001907_hash proc_self_readlink 3 38094 _001907_hash NULL
84393 +_001908_hash proc_sessionid_read 3 6911 _002038_hash NULL nohasharray
84394 +_001909_hash provide_user_output 3 41105 _001909_hash NULL
84395 +_001910_hash ps_pspoll_max_apturn_read 3 6699 _001910_hash NULL
84396 +_001911_hash ps_pspoll_timeouts_read 3 11776 _001911_hash NULL
84397 +_001912_hash ps_pspoll_utilization_read 3 5361 _001912_hash NULL
84398 +_001913_hash pstore_file_read 3 57288 _001913_hash NULL
84399 +_001914_hash ps_upsd_max_apturn_read 3 19918 _001914_hash NULL
84400 +_001915_hash ps_upsd_max_sptime_read 3 63362 _001915_hash NULL
84401 +_001916_hash ps_upsd_timeouts_read 3 28924 _001916_hash NULL
84402 +_001917_hash ps_upsd_utilization_read 3 51669 _001917_hash NULL
84403 +_001918_hash pvr2_v4l2_read 3 18006 _001918_hash NULL
84404 +_001919_hash pwr_disable_ps_read 3 13176 _001919_hash NULL
84405 +_001920_hash pwr_elp_enter_read 3 5324 _001920_hash NULL
84406 +_001921_hash pwr_enable_ps_read 3 17686 _001921_hash NULL
84407 +_001922_hash pwr_fix_tsf_ps_read 3 26627 _001922_hash NULL
84408 +_001923_hash pwr_missing_bcns_read 3 25824 _001923_hash NULL
84409 +_001924_hash pwr_power_save_off_read 3 18355 _001924_hash NULL
84410 +_001925_hash pwr_ps_enter_read 3 26935 _001925_hash &_000501_hash
84411 +_001926_hash pwr_rcvd_awake_beacons_read 3 50505 _001926_hash NULL
84412 +_001927_hash pwr_rcvd_beacons_read 3 52836 _001927_hash NULL
84413 +_001928_hash pwr_tx_without_ps_read 3 48423 _001928_hash NULL
84414 +_001929_hash pwr_tx_with_ps_read 3 60851 _001929_hash NULL
84415 +_001930_hash pwr_wake_on_host_read 3 26321 _001930_hash NULL
84416 +_001931_hash pwr_wake_on_timer_exp_read 3 22640 _001931_hash NULL
84417 +_001932_hash queues_read 3 24877 _001932_hash NULL
84418 +_001933_hash raw_recvmsg 4 17277 _001933_hash NULL
84419 +_001934_hash rcname_read 3 25919 _001934_hash NULL
84420 +_001935_hash read_4k_modal_eeprom 3 30212 _001935_hash NULL
84421 +_001936_hash read_9287_modal_eeprom 3 59327 _001936_hash NULL
84422 +_001937_hash reada_find_extent 2 63486 _001937_hash NULL
84423 +_001938_hash read_def_modal_eeprom 3 14041 _001938_hash NULL
84424 +_001939_hash read_enabled_file_bool 3 37744 _001939_hash NULL
84425 +_001940_hash read_file_ani 3 23161 _001940_hash NULL
84426 +_001941_hash read_file_antenna 3 13574 _001941_hash NULL
84427 +_001942_hash read_file_base_eeprom 3 42168 _001942_hash NULL
84428 +_001943_hash read_file_beacon 3 32595 _001943_hash NULL
84429 +_001944_hash read_file_blob 3 57406 _001944_hash NULL
84430 +_001945_hash read_file_bool 3 4180 _001945_hash NULL
84431 +_001946_hash read_file_credit_dist_stats 3 54367 _001946_hash NULL
84432 +_001947_hash read_file_debug 3 58256 _001947_hash NULL
84433 +_001948_hash read_file_disable_ani 3 6536 _001948_hash NULL
84434 +_001949_hash read_file_dma 3 9530 _001949_hash NULL
84435 +_001950_hash read_file_dump_nfcal 3 18766 _001950_hash NULL
84436 +_001951_hash read_file_frameerrors 3 64001 _001951_hash NULL
84437 +_001952_hash read_file_interrupt 3 61742 _001959_hash NULL nohasharray
84438 +_001953_hash read_file_misc 3 9948 _001953_hash NULL
84439 +_001954_hash read_file_modal_eeprom 3 39909 _001954_hash NULL
84440 +_001955_hash read_file_queue 3 40895 _001955_hash NULL
84441 +_001956_hash read_file_rcstat 3 22854 _001956_hash NULL
84442 +_001957_hash read_file_recv 3 48232 _001957_hash NULL
84443 +_001958_hash read_file_regidx 3 33370 _001958_hash NULL
84444 +_001959_hash read_file_regval 3 61742 _001959_hash &_001952_hash
84445 +_001960_hash read_file_reset 3 52310 _001960_hash NULL
84446 +_001961_hash read_file_rx_chainmask 3 41605 _001961_hash NULL
84447 +_001962_hash read_file_slot 3 50111 _001962_hash NULL
84448 +_001963_hash read_file_stations 3 35795 _001963_hash NULL
84449 +_001964_hash read_file_tgt_int_stats 3 20697 _001964_hash NULL
84450 +_001965_hash read_file_tgt_rx_stats 3 33944 _001965_hash NULL
84451 +_001966_hash read_file_tgt_stats 3 8959 _001966_hash NULL
84452 +_001967_hash read_file_tgt_tx_stats 3 51847 _001967_hash NULL
84453 +_001968_hash read_file_tx_chainmask 3 3829 _001968_hash NULL
84454 +_001969_hash read_file_war_stats 3 292 _001969_hash NULL
84455 +_001970_hash read_file_xmit 3 21487 _001970_hash NULL
84456 +_001971_hash read_from_oldmem 2 3337 _001971_hash NULL
84457 +_001972_hash read_oldmem 3 55658 _001972_hash NULL
84458 +_001973_hash regmap_name_read_file 3 39379 _001973_hash NULL
84459 +_001974_hash repair_io_failure 4 4815 _001974_hash NULL
84460 +_001975_hash request_key_and_link 4 42693 _001975_hash NULL
84461 +_001976_hash res_counter_read 4 33499 _001976_hash NULL
84462 +_001977_hash retry_count_read 3 52129 _001977_hash NULL
84463 +_001978_hash rs_sta_dbgfs_rate_scale_data_read 3 47165 _001978_hash NULL
84464 +_001979_hash rs_sta_dbgfs_scale_table_read 3 40262 _001979_hash NULL
84465 +_001980_hash rs_sta_dbgfs_stats_table_read 3 56573 _001980_hash NULL
84466 +_001981_hash rts_threshold_read 3 44384 _001981_hash NULL
84467 +_001982_hash rx_dropped_read 3 44799 _001982_hash NULL
84468 +_001983_hash rx_fcs_err_read 3 62844 _001983_hash NULL
84469 +_001984_hash rx_hdr_overflow_read 3 64407 _001984_hash NULL
84470 +_001985_hash rx_hw_stuck_read 3 57179 _001985_hash NULL
84471 +_001986_hash rx_out_of_mem_read 3 10157 _001986_hash NULL
84472 +_001987_hash rx_path_reset_read 3 23801 _001987_hash NULL
84473 +_001988_hash rxpipe_beacon_buffer_thres_host_int_trig_rx_data_read 3 55106 _001988_hash NULL
84474 +_001989_hash rxpipe_descr_host_int_trig_rx_data_read 3 22001 _003089_hash NULL nohasharray
84475 +_001990_hash rxpipe_missed_beacon_host_int_trig_rx_data_read 3 63405 _001990_hash NULL
84476 +_001991_hash rxpipe_rx_prep_beacon_drop_read 3 2403 _001991_hash NULL
84477 +_001992_hash rxpipe_tx_xfr_host_int_trig_rx_data_read 3 35538 _001992_hash NULL
84478 +_001993_hash rx_reset_counter_read 3 58001 _001993_hash NULL
84479 +_001994_hash rx_xfr_hint_trig_read 3 40283 _001994_hash NULL
84480 +_001995_hash s5m_bulk_write 3 4833 _001995_hash NULL
84481 +_001996_hash scrub_setup_recheck_block 3-4 56245 _001996_hash NULL
84482 +_001998_hash scsi_adjust_queue_depth 3 12802 _001998_hash NULL
84483 +_001999_hash selinux_inode_notifysecctx 3 36896 _001999_hash NULL
84484 +_002000_hash sel_read_avc_cache_threshold 3 33942 _002000_hash NULL
84485 +_002001_hash sel_read_avc_hash_stats 3 1984 _002001_hash NULL
84486 +_002002_hash sel_read_bool 3 24236 _002002_hash NULL
84487 +_002003_hash sel_read_checkreqprot 3 33068 _002003_hash NULL
84488 +_002004_hash sel_read_class 3 12669 _002541_hash NULL nohasharray
84489 +_002005_hash sel_read_enforce 3 2828 _002005_hash NULL
84490 +_002006_hash sel_read_handle_status 3 56139 _002006_hash NULL
84491 +_002007_hash sel_read_handle_unknown 3 57933 _002007_hash NULL
84492 +_002008_hash sel_read_initcon 3 32362 _002008_hash NULL
84493 +_002009_hash sel_read_mls 3 25369 _002009_hash NULL
84494 +_002010_hash sel_read_perm 3 42302 _002010_hash NULL
84495 +_002011_hash sel_read_policy 3 55947 _002011_hash NULL
84496 +_002012_hash sel_read_policycap 3 28544 _002012_hash NULL
84497 +_002013_hash sel_read_policyvers 3 55 _002013_hash NULL
84498 +_002014_hash send_msg 4 37323 _002014_hash NULL
84499 +_002015_hash send_packet 4 52960 _002015_hash NULL
84500 +_002016_hash short_retry_limit_read 3 4687 _002016_hash NULL
84501 +_002017_hash simple_attr_read 3 24738 _002017_hash NULL
84502 +_002018_hash simple_transaction_read 3 17076 _002018_hash NULL
84503 +_002019_hash skb_copy_datagram_const_iovec 2-5-4 48102 _002019_hash NULL
84504 +_002022_hash skb_copy_datagram_iovec 2-4 5806 _002022_hash NULL
84505 +_002024_hash smk_read_ambient 3 61220 _002024_hash NULL
84506 +_002025_hash smk_read_direct 3 15803 _002025_hash NULL
84507 +_002026_hash smk_read_doi 3 30813 _002026_hash NULL
84508 +_002027_hash smk_read_logging 3 37804 _002027_hash NULL
84509 +_002028_hash smk_read_onlycap 3 3855 _002028_hash NULL
84510 +_002029_hash snapshot_read 3 22601 _002029_hash NULL
84511 +_002030_hash snd_cs4281_BA0_read 5 6847 _002030_hash NULL
84512 +_002031_hash snd_cs4281_BA1_read 5 20323 _002031_hash NULL
84513 +_002032_hash snd_cs46xx_io_read 5 45734 _002032_hash NULL
84514 +_002033_hash snd_gus_dram_read 4 56686 _002033_hash NULL
84515 +_002034_hash snd_pcm_oss_read 3 28317 _002034_hash NULL
84516 +_002035_hash snd_rme32_capture_copy 5 39653 _002035_hash NULL
84517 +_002036_hash snd_rme96_capture_copy 5 58484 _002036_hash NULL
84518 +_002037_hash snd_soc_hw_bulk_write_raw 4 14245 _002037_hash NULL
84519 +_002038_hash spi_show_regs 3 6911 _002038_hash &_001908_hash
84520 +_002039_hash sta_agg_status_read 3 14058 _002039_hash NULL
84521 +_002040_hash sta_connected_time_read 3 17435 _002040_hash NULL
84522 +_002041_hash sta_flags_read 3 56710 _002041_hash NULL
84523 +_002042_hash sta_ht_capa_read 3 10366 _002042_hash NULL
84524 +_002043_hash sta_last_seq_ctrl_read 3 19106 _002043_hash NULL
84525 +_002044_hash sta_num_ps_buf_frames_read 3 1488 _002044_hash NULL
84526 +_002045_hash st_read 3 51251 _002045_hash NULL
84527 +_002046_hash supply_map_read_file 3 10608 _002046_hash NULL
84528 +_002047_hash sysfs_read_file 3 42113 _002047_hash NULL
84529 +_002048_hash sys_lgetxattr 4 45531 _002048_hash NULL
84530 +_002049_hash sys_preadv 3 17100 _002049_hash NULL
84531 +_002050_hash sys_pwritev 3 41722 _002050_hash NULL
84532 +_002051_hash sys_readv 3 50664 _002051_hash NULL
84533 +_002052_hash sys_rt_sigpending 2 24961 _002052_hash NULL
84534 +_002053_hash sys_writev 3 28384 _002053_hash NULL
84535 +_002054_hash test_iso_queue 5 62534 _002054_hash NULL
84536 +_002055_hash ts_read 3 44687 _002055_hash NULL
84537 +_002056_hash TSS_authhmac 3 12839 _002056_hash NULL
84538 +_002057_hash TSS_checkhmac1 5 31429 _002057_hash NULL
84539 +_002058_hash TSS_checkhmac2 5-7 40520 _002058_hash NULL
84540 +_002060_hash tt3650_ci_msg_locked 4 8013 _002060_hash NULL
84541 +_002061_hash tun_sendmsg 4 10337 _002061_hash NULL
84542 +_002062_hash tx_internal_desc_overflow_read 3 47300 _002062_hash NULL
84543 +_002063_hash tx_queue_len_read 3 1463 _002063_hash NULL
84544 +_002064_hash tx_queue_status_read 3 44978 _002064_hash NULL
84545 +_002065_hash ubi_io_write_data 4-5 40305 _002065_hash NULL
84546 +_002067_hash uhci_debug_read 3 5911 _002067_hash NULL
84547 +_002068_hash unix_stream_recvmsg 4 35210 _002068_hash NULL
84548 +_002069_hash uvc_debugfs_stats_read 3 56651 _002069_hash NULL
84549 +_002070_hash vhost_add_used_and_signal_n 4 8038 _002070_hash NULL
84550 +_002071_hash vifs_state_read 3 33762 _002071_hash NULL
84551 +_002072_hash vmbus_open 2-3 12154 _002072_hash NULL
84552 +_002074_hash waiters_read 3 40902 _002074_hash NULL
84553 +_002075_hash wep_addr_key_count_read 3 20174 _002075_hash NULL
84554 +_002076_hash wep_decrypt_fail_read 3 58567 _002076_hash NULL
84555 +_002077_hash wep_default_key_count_read 3 43035 _002077_hash NULL
84556 +_002078_hash wep_interrupt_read 3 41492 _002078_hash NULL
84557 +_002079_hash wep_key_not_found_read 3 13377 _002079_hash &_000915_hash
84558 +_002080_hash wep_packets_read 3 18751 _002080_hash NULL
84559 +_002081_hash wl1271_format_buffer 2 20834 _002081_hash NULL
84560 +_002082_hash wm8994_bulk_write 3 13615 _002082_hash NULL
84561 +_002083_hash wusb_prf_256 7 29203 _002083_hash NULL
84562 +_002084_hash wusb_prf_64 7 51065 _002084_hash NULL
84563 +_002085_hash xfs_buf_read_uncached 4 27519 _002085_hash NULL
84564 +_002086_hash xfs_iext_add 3 41422 _002086_hash NULL
84565 +_002087_hash xfs_iext_remove_direct 3 40744 _002087_hash NULL
84566 +_002088_hash xfs_trans_get_efd 3 51148 _002088_hash NULL
84567 +_002089_hash xfs_trans_get_efi 2 7898 _002089_hash NULL
84568 +_002090_hash xlog_get_bp 2 23229 _002090_hash NULL
84569 +_002091_hash xz_dec_init 2 29029 _002091_hash NULL
84570 +_002092_hash aac_change_queue_depth 2 825 _002092_hash NULL
84571 +_002093_hash agp_allocate_memory_wrap 1 16576 _002093_hash NULL
84572 +_002094_hash arcmsr_adjust_disk_queue_depth 2 16756 _002094_hash NULL
84573 +_002095_hash atalk_recvmsg 4 22053 _002095_hash NULL
84574 +_002097_hash atomic_read_file 3 16227 _002097_hash NULL
84575 +_002098_hash ax25_recvmsg 4 64441 _002098_hash NULL
84576 +_002099_hash beacon_interval_read 3 7091 _002099_hash NULL
84577 +_002100_hash btrfs_init_new_buffer 4 55761 _002100_hash NULL
84578 +_002101_hash btrfs_mksubvol 3 39479 _002101_hash NULL
84579 +_002102_hash bt_sock_recvmsg 4 12316 _002102_hash NULL
84580 +_002103_hash bt_sock_stream_recvmsg 4 52518 _002103_hash NULL
84581 +_002104_hash caif_seqpkt_recvmsg 4 32241 _002104_hash NULL
84582 +_002105_hash cpu_type_read 3 36540 _002105_hash NULL
84583 +_002106_hash cx18_read 3 23699 _002106_hash NULL
84584 +_002107_hash dccp_recvmsg 4 16056 _002107_hash NULL
84585 +_002108_hash depth_read 3 31112 _002108_hash NULL
84586 +_002109_hash dfs_global_file_read 3 7787 _002109_hash NULL
84587 +_002110_hash dgram_recvmsg 4 23104 _002110_hash NULL
84588 +_002111_hash dma_skb_copy_datagram_iovec 3-5 21516 _002111_hash NULL
84589 +_002113_hash dtim_interval_read 3 654 _002113_hash NULL
84590 +_002114_hash dynamic_ps_timeout_read 3 10110 _002114_hash NULL
84591 +_002115_hash enable_read 3 2117 _002115_hash NULL
84592 +_002116_hash exofs_read_kern 6 39921 _002116_hash &_001885_hash
84593 +_002117_hash fc_change_queue_depth 2 36841 _002117_hash NULL
84594 +_002118_hash forced_ps_read 3 31685 _002118_hash NULL
84595 +_002119_hash frequency_read 3 64031 _003106_hash NULL nohasharray
84596 +_002120_hash get_alua_req 3 4166 _002120_hash NULL
84597 +_002121_hash get_rdac_req 3 45882 _002121_hash NULL
84598 +_002122_hash hci_sock_recvmsg 4 7072 _002122_hash NULL
84599 +_002123_hash hpsa_change_queue_depth 2 15449 _002123_hash NULL
84600 +_002124_hash hptiop_adjust_disk_queue_depth 2 20122 _002124_hash NULL
84601 +_002125_hash ide_queue_pc_tail 5 11673 _002125_hash NULL
84602 +_002126_hash ide_raw_taskfile 4 42355 _002126_hash NULL
84603 +_002127_hash idetape_queue_rw_tail 3 29562 _002127_hash NULL
84604 +_002128_hash ieee80211_if_read_aid 3 9705 _002128_hash NULL
84605 +_002129_hash ieee80211_if_read_auto_open_plinks 3 38268 _002129_hash NULL
84606 +_002130_hash ieee80211_if_read_ave_beacon 3 64924 _002130_hash NULL
84607 +_002131_hash ieee80211_if_read_bssid 3 35161 _002131_hash NULL
84608 +_002132_hash ieee80211_if_read_channel_type 3 23884 _002132_hash NULL
84609 +_002133_hash ieee80211_if_read_dot11MeshConfirmTimeout 3 60670 _002133_hash NULL
84610 +_002134_hash ieee80211_if_read_dot11MeshGateAnnouncementProtocol 3 14486 _002134_hash NULL
84611 +_002135_hash ieee80211_if_read_dot11MeshHoldingTimeout 3 47356 _002135_hash NULL
84612 +_002136_hash ieee80211_if_read_dot11MeshHWMPactivePathTimeout 3 7368 _002136_hash NULL
84613 +_002137_hash ieee80211_if_read_dot11MeshHWMPmaxPREQretries 3 59829 _002137_hash NULL
84614 +_002138_hash ieee80211_if_read_dot11MeshHWMPnetDiameterTraversalTime 3 1589 _002138_hash NULL
84615 +_002139_hash ieee80211_if_read_dot11MeshHWMPperrMinInterval 3 17346 _002139_hash NULL
84616 +_002140_hash ieee80211_if_read_dot11MeshHWMPpreqMinInterval 3 24208 _002140_hash NULL
84617 +_002141_hash ieee80211_if_read_dot11MeshHWMPRannInterval 3 2249 _002141_hash NULL
84618 +_002142_hash ieee80211_if_read_dot11MeshHWMPRootMode 3 51441 _002142_hash NULL
84619 +_002143_hash ieee80211_if_read_dot11MeshMaxPeerLinks 3 23878 _002143_hash NULL
84620 +_002144_hash ieee80211_if_read_dot11MeshMaxRetries 3 12756 _002144_hash NULL
84621 +_002145_hash ieee80211_if_read_dot11MeshRetryTimeout 3 52168 _002145_hash NULL
84622 +_002146_hash ieee80211_if_read_dot11MeshTTL 3 58307 _002146_hash NULL
84623 +_002147_hash ieee80211_if_read_dropped_frames_congestion 3 32603 _002147_hash NULL
84624 +_002148_hash ieee80211_if_read_dropped_frames_no_route 3 33383 _002148_hash NULL
84625 +_002149_hash ieee80211_if_read_dropped_frames_ttl 3 44500 _002149_hash NULL
84626 +_002150_hash ieee80211_if_read_drop_unencrypted 3 37053 _002150_hash NULL
84627 +_002151_hash ieee80211_if_read_dtim_count 3 38419 _002151_hash NULL
84628 +_002152_hash ieee80211_if_read_element_ttl 3 18869 _002152_hash NULL
84629 +_002153_hash ieee80211_if_read_estab_plinks 3 32533 _002153_hash NULL
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84631 +_002155_hash ieee80211_if_read_fwded_frames 3 36520 _002155_hash NULL
84632 +_002156_hash ieee80211_if_read_fwded_mcast 3 39571 _002156_hash &_000151_hash
84633 +_002157_hash ieee80211_if_read_fwded_unicast 3 59740 _002859_hash NULL nohasharray
84634 +_002158_hash ieee80211_if_read_last_beacon 3 31257 _002158_hash NULL
84635 +_002159_hash ieee80211_if_read_min_discovery_timeout 3 13946 _002159_hash NULL
84636 +_002160_hash ieee80211_if_read_num_buffered_multicast 3 12716 _002160_hash NULL
84637 +_002161_hash ieee80211_if_read_num_sta_authorized 3 56177 _002161_hash NULL
84638 +_002162_hash ieee80211_if_read_num_sta_ps 3 34722 _002162_hash NULL
84639 +_002163_hash ieee80211_if_read_path_refresh_time 3 25545 _002163_hash NULL
84640 +_002164_hash ieee80211_if_read_peer 3 45233 _002164_hash NULL
84641 +_002165_hash ieee80211_if_read_rc_rateidx_mask_2ghz 3 61570 _002165_hash NULL
84642 +_002166_hash ieee80211_if_read_rc_rateidx_mask_5ghz 3 27183 _002166_hash NULL
84643 +_002167_hash ieee80211_if_read_rc_rateidx_mcs_mask_2ghz 3 37675 _002167_hash NULL
84644 +_002168_hash ieee80211_if_read_rc_rateidx_mcs_mask_5ghz 3 44423 _002168_hash NULL
84645 +_002169_hash ieee80211_if_read_rssi_threshold 3 49260 _002169_hash NULL
84646 +_002170_hash ieee80211_if_read_smps 3 27416 _002170_hash NULL
84647 +_002171_hash ieee80211_if_read_state 3 9813 _002280_hash NULL nohasharray
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84649 +_002173_hash ieee80211_if_read_tsf 3 16420 _002173_hash NULL
84650 +_002174_hash ieee80211_if_read_uapsd_max_sp_len 3 15067 _002174_hash NULL
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84652 +_002176_hash ieee80211_rx_mgmt_beacon 3 24430 _002176_hash NULL
84653 +_002177_hash ieee80211_rx_mgmt_probe_resp 3 6918 _002177_hash NULL
84654 +_002178_hash ima_show_htable_violations 3 10619 _002178_hash NULL
84655 +_002179_hash ima_show_measurements_count 3 23536 _002179_hash NULL
84656 +_002180_hash insert_one_name 7 61668 _002180_hash NULL
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84658 +_002182_hash ip_recv_error 3 23109 _002182_hash NULL
84659 +_002183_hash ipv6_recv_error 3 56347 _002183_hash NULL
84660 +_002184_hash ipv6_recv_rxpmtu 3 7142 _002184_hash NULL
84661 +_002185_hash ipx_recvmsg 4 44366 _002185_hash NULL
84662 +_002186_hash irda_recvmsg_dgram 4 32631 _002186_hash NULL
84663 +_002187_hash iscsi_change_queue_depth 2 23416 _002187_hash NULL
84664 +_002188_hash ivtv_read_pos 3 34400 _002188_hash &_000303_hash
84665 +_002189_hash key_conf_hw_key_idx_read 3 25003 _002189_hash NULL
84666 +_002190_hash key_conf_keyidx_read 3 42443 _002190_hash NULL
84667 +_002191_hash key_conf_keylen_read 3 49758 _002191_hash NULL
84668 +_002192_hash key_flags_read 3 25931 _002192_hash NULL
84669 +_002193_hash key_ifindex_read 3 31411 _002193_hash NULL
84670 +_002194_hash key_tx_rx_count_read 3 44742 _002194_hash NULL
84671 +_002195_hash l2cap_sock_sendmsg 4 63427 _002195_hash NULL
84672 +_002196_hash l2tp_ip_recvmsg 4 22681 _002196_hash NULL
84673 +_002197_hash llc_ui_recvmsg 4 3826 _002197_hash NULL
84674 +_002198_hash lpfc_change_queue_depth 2 25905 _002198_hash NULL
84675 +_002199_hash macvtap_do_read 4 36555 _002199_hash &_001832_hash
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84677 +_002201_hash megasas_change_queue_depth 2 32747 _002201_hash NULL
84678 +_002202_hash mptscsih_change_queue_depth 2 26036 _002202_hash NULL
84679 +_002203_hash NCR_700_change_queue_depth 2 31742 _002203_hash NULL
84680 +_002204_hash netlink_recvmsg 4 61600 _002204_hash NULL
84681 +_002205_hash nfsctl_transaction_read 3 48250 _002205_hash NULL
84682 +_002206_hash nfs_map_group_to_gid 3 15892 _002206_hash NULL
84683 +_002207_hash nfs_map_name_to_uid 3 51132 _002207_hash NULL
84684 +_002208_hash nr_recvmsg 4 12649 _002208_hash NULL
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84686 +_002210_hash osd_req_list_partition_objects 5 56464 _002210_hash NULL
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84688 +_002213_hash packet_recvmsg 4 47700 _002213_hash NULL
84689 +_002214_hash pep_recvmsg 4 19402 _002214_hash NULL
84690 +_002215_hash pfkey_recvmsg 4 53604 _002215_hash NULL
84691 +_002216_hash ping_recvmsg 4 25597 _002216_hash NULL
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84693 +_002218_hash pn_recvmsg 4 30887 _002218_hash NULL
84694 +_002219_hash pointer_size_read 3 51863 _002219_hash NULL
84695 +_002220_hash power_read 3 15939 _002220_hash NULL
84696 +_002221_hash pppoe_recvmsg 4 15073 _002221_hash NULL
84697 +_002222_hash pppol2tp_recvmsg 4 57742 _002222_hash NULL
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84699 +_002224_hash qla2x00_change_queue_depth 2 24742 _002224_hash NULL
84700 +_002225_hash raw_recvmsg 4 52529 _002225_hash NULL
84701 +_002226_hash rawsock_recvmsg 4 12144 _002226_hash NULL
84702 +_002227_hash rawv6_recvmsg 4 30265 _002227_hash NULL
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84705 +_002230_hash reada_tree_block_flagged 3 18402 _002230_hash NULL
84706 +_002231_hash read_tree_block 3 841 _002231_hash NULL
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84709 +_002235_hash recv_stream 4 30138 _002235_hash NULL
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84712 +_002238_hash request_key_async_with_auxdata 4 46624 _002238_hash NULL
84713 +_002239_hash request_key_with_auxdata 4 24515 _002239_hash NULL
84714 +_002240_hash rose_recvmsg 4 2368 _002240_hash NULL
84715 +_002241_hash rxrpc_recvmsg 4 26233 _002241_hash NULL
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84717 +_002243_hash rx_streaming_interval_read 3 55291 _002243_hash NULL
84718 +_002244_hash sas_change_queue_depth 2 18555 _002244_hash NULL
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84720 +_002246_hash scsi_deactivate_tcq 2 47086 _002246_hash NULL
84721 +_002247_hash scsi_execute 5 33596 _002247_hash NULL
84722 +_002248_hash _scsih_adjust_queue_depth 2 1083 _002248_hash NULL
84723 +_002249_hash scsi_init_shared_tag_map 2 59812 _002249_hash NULL
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84726 +_002252_hash send_stream 4 3397 _002252_hash NULL
84727 +_002253_hash skb_copy_and_csum_datagram_iovec 2 24466 _002253_hash NULL
84728 +_002255_hash snd_gf1_mem_proc_dump 5 16926 _002255_hash NULL
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84730 +_002257_hash sta_dev_read 3 14782 _002257_hash NULL
84731 +_002258_hash sta_inactive_ms_read 3 25690 _002258_hash NULL
84732 +_002259_hash sta_last_signal_read 3 31818 _002259_hash NULL
84733 +_002260_hash stats_dot11ACKFailureCount_read 3 45558 _002260_hash NULL
84734 +_002261_hash stats_dot11FCSErrorCount_read 3 28154 _002261_hash NULL
84735 +_002262_hash stats_dot11RTSFailureCount_read 3 43948 _002262_hash NULL
84736 +_002263_hash stats_dot11RTSSuccessCount_read 3 33065 _002263_hash NULL
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84739 +_002266_hash sys_msgrcv 3 959 _002266_hash NULL
84740 +_002267_hash tcm_loop_change_queue_depth 2 42454 _002267_hash NULL
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84742 +_002269_hash tcp_recvmsg 4 31238 _002269_hash NULL
84743 +_002270_hash timeout_read 3 47915 _002270_hash NULL
84744 +_002271_hash total_ps_buffered_read 3 16365 _002271_hash NULL
84745 +_002272_hash tun_put_user 4 59849 _002272_hash NULL
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84747 +_002274_hash tw_change_queue_depth 2 11116 _002274_hash NULL
84748 +_002275_hash twl_change_queue_depth 2 41342 _002275_hash NULL
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84750 +_002278_hash ubi_eba_write_leb_st 5 27896 _002278_hash NULL
84751 +_002279_hash udp_recvmsg 4 42558 _002279_hash NULL
84752 +_002280_hash udpv6_recvmsg 4 9813 _002280_hash &_002171_hash
84753 +_002281_hash ulong_read_file 3 42304 _002281_hash &_000511_hash
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84755 +_002283_hash user_power_read 3 39414 _002283_hash NULL
84756 +_002284_hash vcc_recvmsg 4 37198 _002284_hash NULL
84757 +_002285_hash wep_iv_read 3 54744 _002285_hash NULL
84758 +_002286_hash x25_recvmsg 4 42777 _002286_hash NULL
84759 +_002287_hash xfs_iext_insert 3 18667 _002287_hash NULL
84760 +_002288_hash xfs_iext_remove 3 50909 _002288_hash NULL
84761 +_002289_hash xlog_find_verify_log_record 2 18870 _002289_hash NULL
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84763 +_002291_hash cx18_read_pos 3 4683 _002291_hash NULL
84764 +_002292_hash l2cap_sock_recvmsg 4 59886 _002292_hash NULL
84765 +_002293_hash osd_req_list_dev_partitions 4 60027 _002293_hash NULL
84766 +_002294_hash osd_req_list_partition_collections 5 38223 _002294_hash NULL
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84768 +_002296_hash qla2x00_handle_queue_full 2 24365 _002296_hash NULL
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84773 +_002301_hash submit_inquiry 3 42108 _002301_hash NULL
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84775 +_002303_hash tun_do_read 4 50800 _002303_hash NULL
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84777 +_002305_hash ubi_leb_write 4-5 41691 _002305_hash NULL
84778 +_002307_hash unix_seqpacket_recvmsg 4 23062 _002307_hash NULL
84779 +_002308_hash write_leb 5 36957 _002308_hash NULL
84780 +_002309_hash ch_do_scsi 4 31171 _002309_hash NULL
84781 +_002310_hash dbg_leb_write 4-5 20478 _002310_hash NULL
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84783 +_002313_hash scsi_vpd_inquiry 4 30040 _002313_hash NULL
84784 +_002314_hash ses_recv_diag 4 47143 _002314_hash &_000673_hash
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84789 +_002321_hash ubi_write 4-5 30809 _002321_hash NULL
84790 +_002322_hash dbg_leb_change 4 19969 _002322_hash NULL
84791 +_002323_hash gluebi_write 3 27905 _002323_hash NULL
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84793 +_002325_hash sd_do_mode_sense 5 11507 _002325_hash NULL
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84796 +_002328_hash fixup_leb 3 43256 _002328_hash NULL
84797 +_002329_hash recover_head 3 17904 _002329_hash NULL
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84803 +_002336_hash BcmCopySection 5 2035 _002336_hash NULL
84804 +_002337_hash buffer_from_user 3 51826 _002337_hash NULL
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84825 +_002359_hash iio_debugfs_read_reg 3 60908 _002359_hash NULL
84826 +_002360_hash iio_debugfs_write_reg 3 22742 _002360_hash NULL
84827 +_002361_hash iio_event_chrdev_read 3 54757 _002361_hash NULL
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84829 +_002363_hash iio_read_first_n_sw_rb 2 51911 _002363_hash NULL
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84836 +_002370_hash lirc_write 3 20604 _002370_hash NULL
84837 +_002371_hash _malloc 1 54077 _002371_hash NULL
84838 +_002372_hash mei_read 3 6507 _002372_hash NULL
84839 +_002373_hash mei_write 3 4005 _002373_hash NULL
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84841 +_002375_hash msg_set 3 51725 _002375_hash NULL
84842 +_002376_hash newpart 6 47485 _002376_hash NULL
84843 +_002377_hash OS_kmalloc 1 36909 _002377_hash NULL
84844 +_002378_hash pcpu_alloc_bootmem 2 62074 _002378_hash NULL
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84846 +_002380_hash resource_from_user 3 30341 _002380_hash NULL
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84848 +_002382_hash sca3000_read_first_n_hw_rb 2 11479 _002382_hash NULL
84849 +_002383_hash send_midi_async 3 57463 _002383_hash NULL
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84853 +_002387_hash sep_lli_table_secure_dma 2-3 64042 _002387_hash NULL
84854 +_002389_hash sep_lock_user_pages 2-3 57470 _002389_hash &_002154_hash
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84856 +_002393_hash sep_read 3 17161 _002393_hash NULL
84857 +_002394_hash TransmitTcb 4 12989 _002394_hash NULL
84858 +_002395_hash ValidateDSDParamsChecksum 3 63654 _002395_hash NULL
84859 +_002396_hash Wb35Reg_BurstWrite 4 62327 _002396_hash NULL
84860 +_002397_hash __alloc_bootmem_low_node 2 25726 _002397_hash &_001499_hash
84861 +_002398_hash __alloc_bootmem_node 2 1992 _002398_hash NULL
84862 +_002399_hash alloc_irq_cpu_rmap 1 28459 _002399_hash NULL
84863 +_002400_hash alloc_ring 2-4 18278 _002400_hash NULL
84864 +_002402_hash c4iw_init_resource 2-3 30393 _002402_hash NULL
84865 +_002404_hash cxio_hal_init_resource 2-7-6 29771 _002404_hash &_000284_hash
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84867 +_002408_hash disk_expand_part_tbl 2 30561 _002408_hash NULL
84868 +_002409_hash InterfaceTransmitPacket 3 42058 _002409_hash NULL
84869 +_002410_hash line6_dumpreq_init 3 34473 _002410_hash NULL
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84876 +_002417_hash variax_alloc_sysex_buffer 3 15237 _002417_hash NULL
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84879 +_002420_hash __alloc_bootmem_node_high 2 65076 _002420_hash NULL
84880 +_002421_hash ceph_msgpool_init 3 33312 _002421_hash NULL
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84884 +_002426_hash variax_set_raw2 4 32374 _002426_hash NULL
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84887 +_002429_hash biovec_create_pools 2 9575 _002429_hash NULL
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84889 +_002431_hash prison_create 1 43623 _002431_hash NULL
84890 +_002432_hash unlink_simple 3 47506 _002432_hash NULL
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84892 +_002434_hash alloc_ieee80211_rsl 1 34564 _002434_hash NULL
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84896 +_002438_hash alloc_rx_desc_ring 2 18016 _002438_hash NULL
84897 +_002439_hash alloc_subdevices 2 43300 _002439_hash NULL
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84899 +_002441_hash atomic_stats_read 3 36228 _002441_hash NULL
84900 +_002442_hash capabilities_read 3 58457 _002442_hash NULL
84901 +_002443_hash comedi_read 3 13199 _002443_hash NULL
84902 +_002444_hash comedi_write 3 47926 _002444_hash NULL
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84904 +_002446_hash compat_do_ip6t_set_ctl 4 3184 _002446_hash NULL
84905 +_002447_hash compat_do_ipt_set_ctl 4 58466 _002447_hash &_001852_hash
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85524 +_003123_hash blk_dropped_read 3 4168 _003123_hash NULL
85525 +_003124_hash blk_msg_write 3 13655 _003124_hash NULL
85526 +_003125_hash brcmf_usbdev_qinit 2 19090 _003125_hash &_001533_hash
85527 +_003126_hash brcmf_usb_dl_cmd 4 53130 _003126_hash NULL
85528 +_003127_hash broadsheetfb_write 3 39976 _003127_hash NULL
85529 +_003128_hash broadsheet_spiflash_rewrite_sector 2 54864 _003128_hash NULL
85530 +_003129_hash cyttsp_probe 4 1940 _003129_hash NULL
85531 +_003130_hash da9052_group_write 3 4534 _003130_hash NULL
85532 +_003131_hash dccpprobe_read 3 52549 _003131_hash NULL
85533 +_003132_hash drm_property_create_bitmask 5 30195 _003132_hash NULL
85534 +_003133_hash dtim_interval_write 3 30489 _003133_hash NULL
85535 +_003134_hash dynamic_ps_timeout_write 3 37713 _003134_hash NULL
85536 +_003135_hash event_enable_read 3 7074 _003135_hash NULL
85537 +_003136_hash event_enable_write 3 45238 _003136_hash NULL
85538 +_003137_hash event_filter_read 3 23494 _003137_hash NULL
85539 +_003138_hash event_filter_write 3 56609 _003138_hash NULL
85540 +_003139_hash event_id_read 3 64288 _003139_hash &_001240_hash
85541 +_003140_hash f_audio_buffer_alloc 1 41110 _003140_hash NULL
85542 +_003141_hash fb_sys_read 3 13778 _003141_hash NULL
85543 +_003142_hash fb_sys_write 3 33130 _003142_hash NULL
85544 +_003143_hash forced_ps_write 3 37209 _003143_hash NULL
85545 +_003144_hash __fprog_create 2 41263 _003144_hash NULL
85546 +_003145_hash fq_codel_zalloc 1 15378 _003145_hash NULL
85547 +_003146_hash ftrace_pid_write 3 39710 _003146_hash NULL
85548 +_003147_hash ftrace_profile_read 3 21327 _003147_hash NULL
85549 +_003148_hash ftrace_profile_write 3 53327 _003148_hash NULL
85550 +_003149_hash ftrace_write 3 29551 _003149_hash NULL
85551 +_003150_hash gdm_wimax_netif_rx 3 43423 _003150_hash &_001619_hash
85552 +_003151_hash gpio_power_write 3 1991 _003151_hash NULL
85553 +_003152_hash hecubafb_write 3 26942 _003152_hash NULL
85554 +_003153_hash hsc_msg_alloc 1 60990 _003153_hash NULL
85555 +_003154_hash hsc_write 3 55875 _003154_hash NULL
85556 +_003155_hash hsi_alloc_controller 1 41802 _003155_hash NULL
85557 +_003156_hash hsi_register_board_info 2 13820 _003156_hash NULL
85558 +_003157_hash i915_ring_stop_read 3 42549 _003157_hash NULL
85559 +_003158_hash i915_ring_stop_write 3 59010 _003158_hash NULL
85560 +_003159_hash ieee802154_alloc_device 1 13767 _003159_hash NULL
85561 +_003160_hash intel_sdvo_write_cmd 4 54377 _003160_hash &_000815_hash
85562 +_003161_hash ivtvfb_write 3 40023 _003161_hash NULL
85563 +_003162_hash metronomefb_write 3 8823 _003162_hash NULL
85564 +_003163_hash mwifiex_usb_submit_rx_urb 2 54558 _003163_hash NULL
85565 +_003164_hash nfc_hci_hcp_message_tx 6 14534 _003164_hash NULL
85566 +_003165_hash nfc_hci_set_param 5 40697 _003165_hash NULL
85567 +_003166_hash nfc_shdlc_alloc_skb 2 12741 _003166_hash NULL
85568 +_003167_hash odev_update 2 50169 _003167_hash NULL
85569 +_003168_hash oz_add_farewell 5 20652 _003168_hash NULL
85570 +_003169_hash oz_cdev_read 3 20659 _003169_hash NULL
85571 +_003170_hash oz_cdev_write 3 33852 _003170_hash NULL
85572 +_003171_hash oz_ep_alloc 2 5587 _003171_hash NULL
85573 +_003172_hash oz_events_read 3 47535 _003172_hash NULL
85574 +_003173_hash pmcraid_copy_sglist 3 38431 _003173_hash NULL
85575 +_003174_hash prctl_set_mm 3 64538 _003174_hash NULL
85576 +_003175_hash ptp_filter_init 2 36780 _003175_hash NULL
85577 +_003176_hash rb_simple_read 3 45972 _003176_hash NULL
85578 +_003177_hash rb_simple_write 3 20890 _003177_hash NULL
85579 +_003178_hash read_file_dfs 3 43145 _003178_hash NULL
85580 +_003179_hash rx_streaming_always_write 3 32357 _003179_hash NULL
85581 +_003180_hash rx_streaming_interval_write 3 50120 _003180_hash NULL
85582 +_003181_hash shmem_pread_fast 3 34147 _003181_hash NULL
85583 +_003182_hash shmem_pread_slow 3 3198 _003182_hash NULL
85584 +_003183_hash shmem_pwrite_fast 3 46842 _003183_hash NULL
85585 +_003184_hash shmem_pwrite_slow 3 31741 _003184_hash NULL
85586 +_003185_hash show_header 3 4722 _003185_hash &_000736_hash
85587 +_003186_hash split_scan_timeout_write 3 52128 _003186_hash NULL
85588 +_003187_hash stack_max_size_read 3 1445 _003187_hash NULL
85589 +_003188_hash stack_max_size_write 3 36068 _003188_hash NULL
85590 +_003189_hash subsystem_filter_read 3 62310 _003189_hash NULL
85591 +_003190_hash subsystem_filter_write 3 13022 _003190_hash NULL
85592 +_003191_hash suspend_dtim_interval_write 3 48854 _003191_hash NULL
85593 +_003192_hash system_enable_read 3 25815 _003192_hash NULL
85594 +_003193_hash system_enable_write 3 61396 _003193_hash NULL
85595 +_003194_hash trace_options_core_read 3 47390 _003194_hash NULL
85596 +_003195_hash trace_options_core_write 3 61551 _003195_hash NULL
85597 +_003196_hash trace_options_read 3 11419 _003196_hash NULL
85598 +_003197_hash trace_options_write 3 48275 _003197_hash NULL
85599 +_003198_hash trace_parser_get_init 2 31379 _003198_hash NULL
85600 +_003199_hash traceprobe_probes_write 3 64969 _003199_hash NULL
85601 +_003200_hash trace_seq_to_user 3 65398 _003200_hash NULL
85602 +_003201_hash tracing_buffers_read 3 11124 _003201_hash NULL
85603 +_003202_hash tracing_clock_write 3 27961 _003202_hash NULL
85604 +_003203_hash tracing_cpumask_read 3 7010 _003203_hash NULL
85605 +_003204_hash tracing_ctrl_read 3 46922 _003204_hash NULL
85606 +_003205_hash tracing_ctrl_write 3 42324 _003205_hash &_001726_hash
85607 +_003206_hash tracing_entries_read 3 8345 _003206_hash NULL
85608 +_003207_hash tracing_entries_write 3 60563 _003207_hash NULL
85609 +_003208_hash tracing_max_lat_read 3 8890 _003208_hash NULL
85610 +_003209_hash tracing_max_lat_write 3 8728 _003209_hash NULL
85611 +_003210_hash tracing_read_dyn_info 3 45468 _003210_hash NULL
85612 +_003211_hash tracing_readme_read 3 16493 _003211_hash NULL
85613 +_003212_hash tracing_saved_cmdlines_read 3 21434 _003212_hash NULL
85614 +_003213_hash tracing_set_trace_read 3 44122 _003213_hash NULL
85615 +_003214_hash tracing_set_trace_write 3 57096 _003214_hash NULL
85616 +_003215_hash tracing_stats_read 3 34537 _003215_hash NULL
85617 +_003216_hash tracing_total_entries_read 3 62817 _003216_hash NULL
85618 +_003217_hash tracing_trace_options_write 3 153 _003217_hash NULL
85619 +_003218_hash ttm_put_pages 2 9179 _003218_hash NULL
85620 +_003219_hash udl_prime_create 2 57159 _003219_hash NULL
85621 +_003220_hash ufx_alloc_urb_list 3 10349 _003220_hash NULL
85622 +_003221_hash u_memcpya 2-3 30139 _003221_hash NULL
85623 +_003223_hash viafb_dfph_proc_write 3 49288 _003223_hash NULL
85624 +_003224_hash viafb_dfpl_proc_write 3 627 _003224_hash NULL
85625 +_003225_hash viafb_dvp0_proc_write 3 23023 _003225_hash NULL
85626 +_003226_hash viafb_dvp1_proc_write 3 48864 _003226_hash NULL
85627 +_003227_hash viafb_vt1636_proc_write 3 16018 _003227_hash NULL
85628 +_003228_hash vivi_read 3 23073 _003228_hash NULL
85629 +_003229_hash wl1271_rx_filter_alloc_field 5 46721 _003229_hash NULL
85630 +_003230_hash wl12xx_cmd_build_probe_req 6-8 3098 _003230_hash NULL
85631 +_003232_hash wlcore_alloc_hw 1 7785 _003232_hash NULL
85632 +_003233_hash alloc_and_copy_ftrace_hash 1 29368 _003233_hash NULL
85633 +_003234_hash create_trace_probe 1 20175 _003234_hash NULL
85634 +_003235_hash create_trace_uprobe 1 13184 _003235_hash NULL
85635 +_003236_hash intel_sdvo_set_value 4 2311 _003236_hash NULL
85636 +_003237_hash mmio_read 4 40348 _003237_hash NULL
85637 +_003238_hash nfc_hci_execute_cmd 5 43882 _003238_hash NULL
85638 +_003239_hash nfc_hci_send_event 5 21452 _003239_hash NULL
85639 +_003240_hash nfc_hci_send_response 5 56462 _003240_hash NULL
85640 +_003241_hash picolcd_fb_write 3 2318 _003241_hash NULL
85641 +_003242_hash probes_write 3 29711 _003242_hash NULL
85642 +_003243_hash sys_prctl 4 8766 _003243_hash NULL
85643 +_003244_hash tracing_read_pipe 3 35312 _003244_hash NULL
85644 +_003245_hash brcmf_usb_attach 1-2 44656 _003245_hash NULL
85645 +_003247_hash dlfb_ops_write 3 64150 _003247_hash NULL
85646 +_003248_hash nfc_hci_send_cmd 5 55714 _003248_hash NULL
85647 +_003249_hash ufx_ops_write 3 54848 _003249_hash NULL
85648 +_003250_hash viafb_iga1_odev_proc_write 3 36241 _003250_hash NULL
85649 +_003251_hash viafb_iga2_odev_proc_write 3 2363 _003251_hash NULL
85650 +_003252_hash xenfb_write 3 43412 _003252_hash NULL
85651 +_003253_hash acl_alloc 1 35979 _003253_hash NULL
85652 +_003254_hash acl_alloc_stack_init 1 60630 _003254_hash NULL
85653 +_003255_hash acl_alloc_num 1-2 60778 _003255_hash NULL
85654 diff --git a/tools/gcc/size_overflow_plugin.c b/tools/gcc/size_overflow_plugin.c
85655 new file mode 100644
85656 index 0000000..e9310fa
85657 --- /dev/null
85658 +++ b/tools/gcc/size_overflow_plugin.c
85659 @@ -0,0 +1,1612 @@
85660 +/*
85661 + * Copyright 2011, 2012 by Emese Revfy <re.emese@gmail.com>
85662 + * Licensed under the GPL v2, or (at your option) v3
85663 + *
85664 + * Homepage:
85665 + * http://www.grsecurity.net/~ephox/overflow_plugin/
85666 + *
85667 + * This plugin recomputes expressions of function arguments marked by a size_overflow attribute
85668 + * with double integer precision (DImode/TImode for 32/64 bit integer types).
85669 + * The recomputed argument is checked against TYPE_MAX and an event is logged on overflow and the triggering process is killed.
85670 + *
85671 + * Usage:
85672 + * $ gcc -I`gcc -print-file-name=plugin`/include/c-family -I`gcc -print-file-name=plugin`/include -fPIC -shared -O2 -ggdb -Wall -W -Wno-missing-field-initializers -o size_overflow_plugin.so size_overflow_plugin.c
85673 + * $ gcc -fplugin=size_overflow_plugin.so test.c -O2
85674 + */
85675 +
85676 +#include "gcc-plugin.h"
85677 +#include "config.h"
85678 +#include "system.h"
85679 +#include "coretypes.h"
85680 +#include "tree.h"
85681 +#include "tree-pass.h"
85682 +#include "intl.h"
85683 +#include "plugin-version.h"
85684 +#include "tm.h"
85685 +#include "toplev.h"
85686 +#include "function.h"
85687 +#include "tree-flow.h"
85688 +#include "plugin.h"
85689 +#include "gimple.h"
85690 +#include "c-common.h"
85691 +#include "diagnostic.h"
85692 +#include "cfgloop.h"
85693 +
85694 +struct size_overflow_hash {
85695 + const struct size_overflow_hash * const next;
85696 + const char * const name;
85697 + const unsigned int param;
85698 +};
85699 +
85700 +#include "size_overflow_hash.h"
85701 +
85702 +#define __unused __attribute__((__unused__))
85703 +#define NAME(node) IDENTIFIER_POINTER(DECL_NAME(node))
85704 +#define NAME_LEN(node) IDENTIFIER_LENGTH(DECL_NAME(node))
85705 +#define BEFORE_STMT true
85706 +#define AFTER_STMT false
85707 +#define CREATE_NEW_VAR NULL_TREE
85708 +#define CODES_LIMIT 32
85709 +#define MAX_PARAM 10
85710 +#define MY_STMT GF_PLF_1
85711 +#define NO_CAST_CHECK GF_PLF_2
85712 +
85713 +#if BUILDING_GCC_VERSION == 4005
85714 +#define DECL_CHAIN(NODE) (TREE_CHAIN(DECL_MINIMAL_CHECK(NODE)))
85715 +#endif
85716 +
85717 +int plugin_is_GPL_compatible;
85718 +void debug_gimple_stmt(gimple gs);
85719 +
85720 +static tree expand(struct pointer_set_t *visited, bool *potentionally_overflowed, tree lhs);
85721 +static tree report_size_overflow_decl;
85722 +static const_tree const_char_ptr_type_node;
85723 +static unsigned int handle_function(void);
85724 +static void check_size_overflow(gimple stmt, tree size_overflow_type, tree cast_rhs, tree rhs, bool *potentionally_overflowed, bool before);
85725 +static tree get_size_overflow_type(gimple stmt, tree node);
85726 +static tree dup_assign(struct pointer_set_t *visited, bool *potentionally_overflowed, gimple oldstmt, tree size_overflow_type, tree rhs1, tree rhs2, tree __unused rhs3);
85727 +
85728 +static struct plugin_info size_overflow_plugin_info = {
85729 + .version = "20120820beta",
85730 + .help = "no-size-overflow\tturn off size overflow checking\n",
85731 +};
85732 +
85733 +static tree handle_size_overflow_attribute(tree *node, tree __unused name, tree args, int __unused flags, bool *no_add_attrs)
85734 +{
85735 + unsigned int arg_count;
85736 +
85737 + if (TREE_CODE(*node) == FUNCTION_DECL)
85738 + arg_count = type_num_arguments(TREE_TYPE(*node));
85739 + else if (TREE_CODE(*node) == FUNCTION_TYPE || TREE_CODE(*node) == METHOD_TYPE)
85740 + arg_count = type_num_arguments(*node);
85741 + else {
85742 + *no_add_attrs = true;
85743 + error("%qE attribute only applies to functions", name);
85744 + return NULL_TREE;
85745 + }
85746 +
85747 + for (; args; args = TREE_CHAIN(args)) {
85748 + tree position = TREE_VALUE(args);
85749 + if (TREE_CODE(position) != INTEGER_CST || TREE_INT_CST_HIGH(position) || TREE_INT_CST_LOW(position) < 1 || TREE_INT_CST_LOW(position) > arg_count ) {
85750 + error("handle_size_overflow_attribute: overflow parameter outside range.");
85751 + *no_add_attrs = true;
85752 + }
85753 + }
85754 + return NULL_TREE;
85755 +}
85756 +
85757 +static struct attribute_spec size_overflow_attr = {
85758 + .name = "size_overflow",
85759 + .min_length = 1,
85760 + .max_length = -1,
85761 + .decl_required = true,
85762 + .type_required = false,
85763 + .function_type_required = false,
85764 + .handler = handle_size_overflow_attribute,
85765 +#if BUILDING_GCC_VERSION >= 4007
85766 + .affects_type_identity = false
85767 +#endif
85768 +};
85769 +
85770 +static void register_attributes(void __unused *event_data, void __unused *data)
85771 +{
85772 + register_attribute(&size_overflow_attr);
85773 +}
85774 +
85775 +// http://www.team5150.com/~andrew/noncryptohashzoo2~/CrapWow.html
85776 +static unsigned int CrapWow(const char *key, unsigned int len, unsigned int seed)
85777 +{
85778 +#define cwfold( a, b, lo, hi ) { p = (unsigned int)(a) * (unsigned long long)(b); lo ^= (unsigned int)p; hi ^= (unsigned int)(p >> 32); }
85779 +#define cwmixa( in ) { cwfold( in, m, k, h ); }
85780 +#define cwmixb( in ) { cwfold( in, n, h, k ); }
85781 +
85782 + unsigned int m = 0x57559429;
85783 + unsigned int n = 0x5052acdb;
85784 + const unsigned int *key4 = (const unsigned int *)key;
85785 + unsigned int h = len;
85786 + unsigned int k = len + seed + n;
85787 + unsigned long long p;
85788 +
85789 + while (len >= 8) {
85790 + cwmixb(key4[0]) cwmixa(key4[1]) key4 += 2;
85791 + len -= 8;
85792 + }
85793 + if (len >= 4) {
85794 + cwmixb(key4[0]) key4 += 1;
85795 + len -= 4;
85796 + }
85797 + if (len)
85798 + cwmixa(key4[0] & ((1 << (len * 8)) - 1 ));
85799 + cwmixb(h ^ (k + n));
85800 + return k ^ h;
85801 +
85802 +#undef cwfold
85803 +#undef cwmixa
85804 +#undef cwmixb
85805 +}
85806 +
85807 +static inline unsigned int get_hash_num(const char *fndecl, const char *tree_codes, unsigned int len, unsigned int seed)
85808 +{
85809 + unsigned int fn = CrapWow(fndecl, strlen(fndecl), seed) & 0xffff;
85810 + unsigned int codes = CrapWow(tree_codes, len, seed) & 0xffff;
85811 + return fn ^ codes;
85812 +}
85813 +
85814 +static inline const_tree get_original_function_decl(const_tree fndecl)
85815 +{
85816 + if (DECL_ABSTRACT_ORIGIN(fndecl))
85817 + return DECL_ABSTRACT_ORIGIN(fndecl);
85818 + return fndecl;
85819 +}
85820 +
85821 +static inline gimple get_def_stmt(const_tree node)
85822 +{
85823 + gcc_assert(node != NULL_TREE);
85824 + gcc_assert(TREE_CODE(node) == SSA_NAME);
85825 + return SSA_NAME_DEF_STMT(node);
85826 +}
85827 +
85828 +static unsigned char get_tree_code(tree type)
85829 +{
85830 + switch (TREE_CODE(type)) {
85831 + case ARRAY_TYPE:
85832 + return 0;
85833 + case BOOLEAN_TYPE:
85834 + return 1;
85835 + case ENUMERAL_TYPE:
85836 + return 2;
85837 + case FUNCTION_TYPE:
85838 + return 3;
85839 + case INTEGER_TYPE:
85840 + return 4;
85841 + case POINTER_TYPE:
85842 + return 5;
85843 + case RECORD_TYPE:
85844 + return 6;
85845 + case UNION_TYPE:
85846 + return 7;
85847 + case VOID_TYPE:
85848 + return 8;
85849 + case REAL_TYPE:
85850 + return 9;
85851 + case VECTOR_TYPE:
85852 + return 10;
85853 + case REFERENCE_TYPE:
85854 + return 11;
85855 + default:
85856 + debug_tree(type);
85857 + gcc_unreachable();
85858 + }
85859 +}
85860 +
85861 +static size_t add_type_codes(tree type, unsigned char *tree_codes, size_t len)
85862 +{
85863 + gcc_assert(type != NULL_TREE);
85864 +
85865 + while (type && len < CODES_LIMIT) {
85866 + tree_codes[len] = get_tree_code(type);
85867 + len++;
85868 + type = TREE_TYPE(type);
85869 + }
85870 + return len;
85871 +}
85872 +
85873 +static unsigned int get_function_decl(const_tree fndecl, unsigned char *tree_codes)
85874 +{
85875 + tree arg;
85876 + const_tree result, type = TREE_TYPE(fndecl);
85877 + enum tree_code code = TREE_CODE(type);
85878 + size_t len = 0;
85879 +
85880 + gcc_assert(code == FUNCTION_TYPE);
85881 +
85882 + arg = TYPE_ARG_TYPES(type);
85883 + // skip builtins __builtin_constant_p
85884 + if (!arg && DECL_BUILT_IN(fndecl))
85885 + return 0;
85886 + gcc_assert(arg != NULL_TREE);
85887 +
85888 + if (TREE_CODE_CLASS(code) == tcc_type)
85889 + result = type;
85890 + else
85891 + result = DECL_RESULT(fndecl);
85892 +
85893 + gcc_assert(result != NULL_TREE);
85894 + len = add_type_codes(TREE_TYPE(result), tree_codes, len);
85895 +
85896 + while (arg && len < CODES_LIMIT) {
85897 + len = add_type_codes(TREE_VALUE(arg), tree_codes, len);
85898 + arg = TREE_CHAIN(arg);
85899 + }
85900 +
85901 + gcc_assert(len != 0);
85902 + return len;
85903 +}
85904 +
85905 +static const struct size_overflow_hash *get_function_hash(const_tree fndecl)
85906 +{
85907 + unsigned int hash;
85908 + const struct size_overflow_hash *entry;
85909 + unsigned char tree_codes[CODES_LIMIT];
85910 + size_t len;
85911 + const char *func_name = NAME(fndecl);
85912 +
85913 + len = get_function_decl(fndecl, tree_codes);
85914 + if (len == 0)
85915 + return NULL;
85916 +
85917 + hash = get_hash_num(func_name, (const char*) tree_codes, len, 0);
85918 +
85919 + entry = size_overflow_hash[hash];
85920 + while (entry) {
85921 + if (!strcmp(entry->name, func_name))
85922 + return entry;
85923 + entry = entry->next;
85924 + }
85925 +
85926 + return NULL;
85927 +}
85928 +
85929 +static void check_arg_type(const_tree arg)
85930 +{
85931 + const_tree type = TREE_TYPE(arg);
85932 + enum tree_code code = TREE_CODE(type);
85933 +
85934 + gcc_assert(code == INTEGER_TYPE || code == ENUMERAL_TYPE ||
85935 + (code == POINTER_TYPE && TREE_CODE(TREE_TYPE(type)) == VOID_TYPE) ||
85936 + (code == POINTER_TYPE && TREE_CODE(TREE_TYPE(type)) == INTEGER_TYPE));
85937 +}
85938 +
85939 +static int find_arg_number(const_tree arg, const_tree func)
85940 +{
85941 + tree var;
85942 + bool match = false;
85943 + unsigned int argnum = 1;
85944 +
85945 + if (TREE_CODE(arg) == SSA_NAME)
85946 + arg = SSA_NAME_VAR(arg);
85947 +
85948 + for (var = DECL_ARGUMENTS(func); var; var = TREE_CHAIN(var)) {
85949 + if (strcmp(NAME(arg), NAME(var))) {
85950 + argnum++;
85951 + continue;
85952 + }
85953 + check_arg_type(var);
85954 +
85955 + match = true;
85956 + break;
85957 + }
85958 + if (!match) {
85959 + warning(0, "find_arg_number: cannot find the %s argument in %s", NAME(arg), NAME(func));
85960 + return 0;
85961 + }
85962 + return argnum;
85963 +}
85964 +
85965 +static void print_missing_msg(const_tree func, unsigned int argnum)
85966 +{
85967 + unsigned int new_hash;
85968 + size_t len;
85969 + unsigned char tree_codes[CODES_LIMIT];
85970 + location_t loc = DECL_SOURCE_LOCATION(func);
85971 + const char *curfunc = NAME(func);
85972 +
85973 + len = get_function_decl(func, tree_codes);
85974 + new_hash = get_hash_num(curfunc, (const char *) tree_codes, len, 0);
85975 + inform(loc, "Function %s is missing from the size_overflow hash table +%s+%d+%u+", curfunc, curfunc, argnum, new_hash);
85976 +}
85977 +
85978 +static void check_missing_attribute(const_tree arg)
85979 +{
85980 + const_tree type = TREE_TYPE(arg);
85981 + const_tree func = get_original_function_decl(current_function_decl);
85982 + unsigned int argnum;
85983 + const struct size_overflow_hash *hash;
85984 +
85985 + gcc_assert(TREE_CODE(arg) != COMPONENT_REF);
85986 +
85987 + if (TREE_CODE(type) == POINTER_TYPE)
85988 + return;
85989 +
85990 + if (lookup_attribute("size_overflow", DECL_ATTRIBUTES(func)))
85991 + return;
85992 +
85993 + argnum = find_arg_number(arg, func);
85994 + if (argnum == 0)
85995 + return;
85996 +
85997 + hash = get_function_hash(func);
85998 + if (!hash || !(hash->param & (1U << argnum)))
85999 + print_missing_msg(func, argnum);
86000 +}
86001 +
86002 +static tree create_new_var(tree type)
86003 +{
86004 + tree new_var = create_tmp_var(type, "cicus");
86005 +
86006 + add_referenced_var(new_var);
86007 + mark_sym_for_renaming(new_var);
86008 + return new_var;
86009 +}
86010 +
86011 +static gimple create_binary_assign(enum tree_code code, gimple stmt, tree rhs1, tree rhs2)
86012 +{
86013 + gimple assign;
86014 + gimple_stmt_iterator gsi = gsi_for_stmt(stmt);
86015 + tree type = TREE_TYPE(rhs1);
86016 + tree lhs = create_new_var(type);
86017 +
86018 + assign = gimple_build_assign_with_ops(code, lhs, rhs1, rhs2);
86019 + gimple_set_lhs(assign, make_ssa_name(lhs, assign));
86020 +
86021 + gsi_insert_before(&gsi, assign, GSI_NEW_STMT);
86022 + update_stmt(assign);
86023 + gimple_set_plf(assign, MY_STMT, true);
86024 + return assign;
86025 +}
86026 +
86027 +static bool is_bool(const_tree node)
86028 +{
86029 + const_tree type;
86030 +
86031 + if (node == NULL_TREE)
86032 + return false;
86033 +
86034 + type = TREE_TYPE(node);
86035 + if (!INTEGRAL_TYPE_P(type))
86036 + return false;
86037 + if (TREE_CODE(type) == BOOLEAN_TYPE)
86038 + return true;
86039 + if (TYPE_PRECISION(type) == 1)
86040 + return true;
86041 + return false;
86042 +}
86043 +
86044 +static tree cast_a_tree(tree type, tree var)
86045 +{
86046 + gcc_assert(type != NULL_TREE);
86047 + gcc_assert(var != NULL_TREE);
86048 + gcc_assert(fold_convertible_p(type, var));
86049 +
86050 + return fold_convert(type, var);
86051 +}
86052 +
86053 +static gimple build_cast_stmt(tree dst_type, tree rhs, tree lhs, gimple_stmt_iterator *gsi, bool before)
86054 +{
86055 + gimple assign;
86056 +
86057 + gcc_assert(dst_type != NULL_TREE && rhs != NULL_TREE);
86058 + if (gsi_end_p(*gsi) && before == BEFORE_STMT)
86059 + gcc_unreachable();
86060 +
86061 + if (lhs == CREATE_NEW_VAR)
86062 + lhs = create_new_var(dst_type);
86063 +
86064 + assign = gimple_build_assign(lhs, cast_a_tree(dst_type, rhs));
86065 +
86066 + if (!gsi_end_p(*gsi)) {
86067 + location_t loc = gimple_location(gsi_stmt(*gsi));
86068 + gimple_set_location(assign, loc);
86069 + }
86070 +
86071 + gimple_set_lhs(assign, make_ssa_name(lhs, assign));
86072 +
86073 + if (before)
86074 + gsi_insert_before(gsi, assign, GSI_NEW_STMT);
86075 + else
86076 + gsi_insert_after(gsi, assign, GSI_NEW_STMT);
86077 + update_stmt(assign);
86078 + gimple_set_plf(assign, MY_STMT, true);
86079 +
86080 + return assign;
86081 +}
86082 +
86083 +static tree cast_to_new_size_overflow_type(gimple stmt, tree new_rhs1, tree size_overflow_type, bool before)
86084 +{
86085 + const_gimple assign;
86086 + gimple_stmt_iterator gsi;
86087 +
86088 + if (new_rhs1 == NULL_TREE)
86089 + return NULL_TREE;
86090 +
86091 + if (!useless_type_conversion_p(TREE_TYPE(new_rhs1), size_overflow_type)) {
86092 + gsi = gsi_for_stmt(stmt);
86093 + assign = build_cast_stmt(size_overflow_type, new_rhs1, CREATE_NEW_VAR, &gsi, before);
86094 + return gimple_get_lhs(assign);
86095 + }
86096 + return new_rhs1;
86097 +}
86098 +
86099 +static tree follow_overflow_type_and_dup(struct pointer_set_t *visited, bool *potentionally_overflowed, gimple stmt, tree node, tree new_rhs1, tree new_rhs2, tree new_rhs3)
86100 +{
86101 + tree size_overflow_type = get_size_overflow_type(stmt, node);
86102 +
86103 + new_rhs1 = cast_to_new_size_overflow_type(stmt, new_rhs1, size_overflow_type, BEFORE_STMT);
86104 +
86105 + if (new_rhs2 != NULL_TREE)
86106 + new_rhs2 = cast_to_new_size_overflow_type(stmt, new_rhs2, size_overflow_type, BEFORE_STMT);
86107 +
86108 + if (new_rhs3 != NULL_TREE)
86109 + new_rhs3 = cast_to_new_size_overflow_type(stmt, new_rhs3, size_overflow_type, BEFORE_STMT);
86110 +
86111 + return dup_assign(visited, potentionally_overflowed, stmt, size_overflow_type, new_rhs1, new_rhs2, new_rhs3);
86112 +}
86113 +
86114 +static tree create_assign(struct pointer_set_t *visited, bool *potentionally_overflowed, gimple oldstmt, tree rhs1, bool before)
86115 +{
86116 + const_tree oldstmt_rhs1;
86117 + tree size_overflow_type, lhs;
86118 + enum tree_code code;
86119 + gimple stmt;
86120 + gimple_stmt_iterator gsi;
86121 +
86122 + if (!*potentionally_overflowed)
86123 + return NULL_TREE;
86124 +
86125 + if (rhs1 == NULL_TREE) {
86126 + debug_gimple_stmt(oldstmt);
86127 + error("create_assign: rhs1 is NULL_TREE");
86128 + gcc_unreachable();
86129 + }
86130 +
86131 + if (gimple_code(oldstmt) == GIMPLE_ASM)
86132 + lhs = rhs1;
86133 + else
86134 + lhs = gimple_get_lhs(oldstmt);
86135 +
86136 + oldstmt_rhs1 = gimple_assign_rhs1(oldstmt);
86137 + code = TREE_CODE(oldstmt_rhs1);
86138 + if (code == PARM_DECL || (code == SSA_NAME && gimple_code(get_def_stmt(oldstmt_rhs1)) == GIMPLE_NOP))
86139 + check_missing_attribute(oldstmt_rhs1);
86140 +
86141 + gsi = gsi_for_stmt(oldstmt);
86142 + pointer_set_insert(visited, oldstmt);
86143 + if (lookup_stmt_eh_lp(oldstmt) != 0) {
86144 + basic_block next_bb, cur_bb;
86145 + const_edge e;
86146 +
86147 + gcc_assert(before == false);
86148 + gcc_assert(stmt_can_throw_internal(oldstmt));
86149 + gcc_assert(gimple_code(oldstmt) == GIMPLE_CALL);
86150 + gcc_assert(!gsi_end_p(gsi));
86151 +
86152 + cur_bb = gimple_bb(oldstmt);
86153 + next_bb = cur_bb->next_bb;
86154 + e = find_edge(cur_bb, next_bb);
86155 + gcc_assert(e != NULL);
86156 + gcc_assert(e->flags & EDGE_FALLTHRU);
86157 +
86158 + gsi = gsi_after_labels(next_bb);
86159 + gcc_assert(!gsi_end_p(gsi));
86160 +
86161 + before = true;
86162 + oldstmt = gsi_stmt(gsi);
86163 + pointer_set_insert(visited, oldstmt);
86164 + }
86165 +
86166 + size_overflow_type = get_size_overflow_type(oldstmt, lhs);
86167 +
86168 + stmt = build_cast_stmt(size_overflow_type, rhs1, CREATE_NEW_VAR, &gsi, before);
86169 + gimple_set_plf(stmt, MY_STMT, true);
86170 + return gimple_get_lhs(stmt);
86171 +}
86172 +
86173 +static tree dup_assign(struct pointer_set_t *visited, bool *potentionally_overflowed, gimple oldstmt, tree size_overflow_type, tree rhs1, tree rhs2, tree __unused rhs3)
86174 +{
86175 + gimple stmt;
86176 + gimple_stmt_iterator gsi;
86177 + tree new_var, lhs = gimple_get_lhs(oldstmt);
86178 +
86179 + if (!*potentionally_overflowed)
86180 + return NULL_TREE;
86181 +
86182 + if (gimple_plf(oldstmt, MY_STMT))
86183 + return lhs;
86184 +
86185 + if (gimple_num_ops(oldstmt) != 4 && rhs1 == NULL_TREE) {
86186 + rhs1 = gimple_assign_rhs1(oldstmt);
86187 + rhs1 = create_assign(visited, potentionally_overflowed, oldstmt, rhs1, BEFORE_STMT);
86188 + }
86189 + if (gimple_num_ops(oldstmt) == 3 && rhs2 == NULL_TREE) {
86190 + rhs2 = gimple_assign_rhs2(oldstmt);
86191 + rhs2 = create_assign(visited, potentionally_overflowed, oldstmt, rhs2, BEFORE_STMT);
86192 + }
86193 +
86194 + stmt = gimple_copy(oldstmt);
86195 + gimple_set_location(stmt, gimple_location(oldstmt));
86196 + gimple_set_plf(stmt, MY_STMT, true);
86197 +
86198 + if (gimple_assign_rhs_code(oldstmt) == WIDEN_MULT_EXPR)
86199 + gimple_assign_set_rhs_code(stmt, MULT_EXPR);
86200 +
86201 + if (is_bool(lhs))
86202 + new_var = SSA_NAME_VAR(lhs);
86203 + else
86204 + new_var = create_new_var(size_overflow_type);
86205 + new_var = make_ssa_name(new_var, stmt);
86206 + gimple_set_lhs(stmt, new_var);
86207 +
86208 + if (rhs1 != NULL_TREE) {
86209 + if (!gimple_assign_cast_p(oldstmt))
86210 + rhs1 = cast_a_tree(size_overflow_type, rhs1);
86211 + gimple_assign_set_rhs1(stmt, rhs1);
86212 + }
86213 +
86214 + if (rhs2 != NULL_TREE)
86215 + gimple_assign_set_rhs2(stmt, rhs2);
86216 +#if BUILDING_GCC_VERSION >= 4007
86217 + if (rhs3 != NULL_TREE)
86218 + gimple_assign_set_rhs3(stmt, rhs3);
86219 +#endif
86220 + gimple_set_vuse(stmt, gimple_vuse(oldstmt));
86221 + gimple_set_vdef(stmt, gimple_vdef(oldstmt));
86222 +
86223 + gsi = gsi_for_stmt(oldstmt);
86224 + gsi_insert_after(&gsi, stmt, GSI_SAME_STMT);
86225 + update_stmt(stmt);
86226 + pointer_set_insert(visited, oldstmt);
86227 + return gimple_get_lhs(stmt);
86228 +}
86229 +
86230 +static gimple overflow_create_phi_node(gimple oldstmt, tree result)
86231 +{
86232 + basic_block bb;
86233 + gimple phi;
86234 + gimple_stmt_iterator gsi = gsi_for_stmt(oldstmt);
86235 +
86236 + bb = gsi_bb(gsi);
86237 +
86238 + phi = create_phi_node(result, bb);
86239 + gsi = gsi_last(phi_nodes(bb));
86240 + gsi_remove(&gsi, false);
86241 +
86242 + gsi = gsi_for_stmt(oldstmt);
86243 + gsi_insert_after(&gsi, phi, GSI_NEW_STMT);
86244 + gimple_set_bb(phi, bb);
86245 + gimple_set_plf(phi, MY_STMT, true);
86246 + return phi;
86247 +}
86248 +
86249 +static basic_block create_a_first_bb(void)
86250 +{
86251 + basic_block first_bb;
86252 +
86253 + first_bb = split_block_after_labels(ENTRY_BLOCK_PTR)->dest;
86254 + if (dom_info_available_p(CDI_DOMINATORS))
86255 + set_immediate_dominator(CDI_DOMINATORS, first_bb, ENTRY_BLOCK_PTR);
86256 + return first_bb;
86257 +}
86258 +
86259 +static tree cast_old_phi_arg(gimple oldstmt, tree size_overflow_type, tree arg, tree new_var, unsigned int i)
86260 +{
86261 + basic_block bb;
86262 + const_gimple newstmt;
86263 + gimple_stmt_iterator gsi;
86264 + bool before = BEFORE_STMT;
86265 +
86266 + if (TREE_CODE(arg) == SSA_NAME && gimple_code(get_def_stmt(arg)) != GIMPLE_NOP) {
86267 + gsi = gsi_for_stmt(get_def_stmt(arg));
86268 + newstmt = build_cast_stmt(size_overflow_type, arg, new_var, &gsi, AFTER_STMT);
86269 + return gimple_get_lhs(newstmt);
86270 + }
86271 +
86272 + bb = gimple_phi_arg_edge(oldstmt, i)->src;
86273 + gsi = gsi_after_labels(bb);
86274 + if (bb->index == 0) {
86275 + bb = create_a_first_bb();
86276 + gsi = gsi_start_bb(bb);
86277 + }
86278 + if (gsi_end_p(gsi))
86279 + before = AFTER_STMT;
86280 + newstmt = build_cast_stmt(size_overflow_type, arg, new_var, &gsi, before);
86281 + return gimple_get_lhs(newstmt);
86282 +}
86283 +
86284 +static const_gimple handle_new_phi_arg(const_tree arg, tree new_var, tree new_rhs)
86285 +{
86286 + gimple newstmt;
86287 + gimple_stmt_iterator gsi;
86288 + void (*gsi_insert)(gimple_stmt_iterator *, gimple, enum gsi_iterator_update);
86289 + gimple def_newstmt = get_def_stmt(new_rhs);
86290 +
86291 + gsi_insert = gsi_insert_after;
86292 + gsi = gsi_for_stmt(def_newstmt);
86293 +
86294 + switch (gimple_code(get_def_stmt(arg))) {
86295 + case GIMPLE_PHI:
86296 + newstmt = gimple_build_assign(new_var, new_rhs);
86297 + gsi = gsi_after_labels(gimple_bb(def_newstmt));
86298 + gsi_insert = gsi_insert_before;
86299 + break;
86300 + case GIMPLE_ASM:
86301 + case GIMPLE_CALL:
86302 + newstmt = gimple_build_assign(new_var, new_rhs);
86303 + break;
86304 + case GIMPLE_ASSIGN:
86305 + newstmt = gimple_build_assign(new_var, gimple_get_lhs(def_newstmt));
86306 + break;
86307 + default:
86308 + /* unknown gimple_code (handle_build_new_phi_arg) */
86309 + gcc_unreachable();
86310 + }
86311 +
86312 + gimple_set_lhs(newstmt, make_ssa_name(new_var, newstmt));
86313 + gsi_insert(&gsi, newstmt, GSI_NEW_STMT);
86314 + gimple_set_plf(newstmt, MY_STMT, true);
86315 + update_stmt(newstmt);
86316 + return newstmt;
86317 +}
86318 +
86319 +static tree build_new_phi_arg(struct pointer_set_t *visited, bool *potentionally_overflowed, tree size_overflow_type, tree arg, tree new_var)
86320 +{
86321 + const_gimple newstmt;
86322 + tree new_rhs;
86323 +
86324 + new_rhs = expand(visited, potentionally_overflowed, arg);
86325 + if (new_rhs == NULL_TREE)
86326 + return NULL_TREE;
86327 +
86328 + new_rhs = cast_to_new_size_overflow_type(get_def_stmt(new_rhs), new_rhs, size_overflow_type, AFTER_STMT);
86329 +
86330 + newstmt = handle_new_phi_arg(arg, new_var, new_rhs);
86331 + return gimple_get_lhs(newstmt);
86332 +}
86333 +
86334 +static tree build_new_phi(struct pointer_set_t *visited, bool *potentionally_overflowed, tree orig_result)
86335 +{
86336 + gimple phi, oldstmt = get_def_stmt(orig_result);
86337 + tree new_result, size_overflow_type;
86338 + unsigned int i;
86339 + unsigned int n = gimple_phi_num_args(oldstmt);
86340 +
86341 + size_overflow_type = get_size_overflow_type(oldstmt, orig_result);
86342 +
86343 + new_result = create_new_var(size_overflow_type);
86344 +
86345 + pointer_set_insert(visited, oldstmt);
86346 + phi = overflow_create_phi_node(oldstmt, new_result);
86347 + for (i = 0; i < n; i++) {
86348 + tree arg, lhs;
86349 +
86350 + arg = gimple_phi_arg_def(oldstmt, i);
86351 + if (is_gimple_constant(arg))
86352 + arg = cast_a_tree(size_overflow_type, arg);
86353 + lhs = build_new_phi_arg(visited, potentionally_overflowed, size_overflow_type, arg, new_result);
86354 + if (lhs == NULL_TREE)
86355 + lhs = cast_old_phi_arg(oldstmt, size_overflow_type, arg, new_result, i);
86356 + add_phi_arg(phi, lhs, gimple_phi_arg_edge(oldstmt, i), gimple_location(oldstmt));
86357 + }
86358 +
86359 + update_stmt(phi);
86360 + return gimple_phi_result(phi);
86361 +}
86362 +
86363 +static tree change_assign_rhs(gimple stmt, const_tree orig_rhs, tree new_rhs)
86364 +{
86365 + const_gimple assign;
86366 + gimple_stmt_iterator gsi = gsi_for_stmt(stmt);
86367 + tree origtype = TREE_TYPE(orig_rhs);
86368 +
86369 + gcc_assert(gimple_code(stmt) == GIMPLE_ASSIGN);
86370 +
86371 + assign = build_cast_stmt(origtype, new_rhs, CREATE_NEW_VAR, &gsi, BEFORE_STMT);
86372 + return gimple_get_lhs(assign);
86373 +}
86374 +
86375 +static void change_rhs1(gimple stmt, tree new_rhs1)
86376 +{
86377 + tree assign_rhs;
86378 + const_tree rhs = gimple_assign_rhs1(stmt);
86379 +
86380 + assign_rhs = change_assign_rhs(stmt, rhs, new_rhs1);
86381 + gimple_assign_set_rhs1(stmt, assign_rhs);
86382 + update_stmt(stmt);
86383 +}
86384 +
86385 +static bool check_mode_type(const_gimple stmt)
86386 +{
86387 + const_tree lhs = gimple_get_lhs(stmt);
86388 + const_tree lhs_type = TREE_TYPE(lhs);
86389 + const_tree rhs_type = TREE_TYPE(gimple_assign_rhs1(stmt));
86390 + enum machine_mode lhs_mode = TYPE_MODE(lhs_type);
86391 + enum machine_mode rhs_mode = TYPE_MODE(rhs_type);
86392 +
86393 + if (rhs_mode == lhs_mode && TYPE_UNSIGNED(rhs_type) == TYPE_UNSIGNED(lhs_type))
86394 + return false;
86395 +
86396 + if (rhs_mode == SImode && lhs_mode == DImode && (TYPE_UNSIGNED(rhs_type) || !TYPE_UNSIGNED(lhs_type)))
86397 + return false;
86398 +
86399 + return true;
86400 +}
86401 +
86402 +static bool check_undefined_integer_operation(const_gimple stmt)
86403 +{
86404 + const_gimple def_stmt;
86405 + const_tree lhs = gimple_get_lhs(stmt);
86406 + const_tree rhs1 = gimple_assign_rhs1(stmt);
86407 + const_tree rhs1_type = TREE_TYPE(rhs1);
86408 + const_tree lhs_type = TREE_TYPE(lhs);
86409 +
86410 + if (TYPE_MODE(rhs1_type) != TYPE_MODE(lhs_type) || TYPE_UNSIGNED(rhs1_type) == TYPE_UNSIGNED(lhs_type))
86411 + return false;
86412 +
86413 + def_stmt = get_def_stmt(rhs1);
86414 + if (gimple_code(def_stmt) != GIMPLE_ASSIGN)
86415 + return false;
86416 +
86417 + if (gimple_assign_rhs_code(def_stmt) != MINUS_EXPR)
86418 + return false;
86419 + return true;
86420 +}
86421 +
86422 +static bool is_a_cast_and_const_overflow(const_tree no_const_rhs)
86423 +{
86424 + const_tree rhs1, lhs, rhs1_type, lhs_type;
86425 + enum machine_mode lhs_mode, rhs_mode;
86426 + gimple def_stmt = get_def_stmt(no_const_rhs);
86427 +
86428 + if (!gimple_assign_cast_p(def_stmt))
86429 + return false;
86430 +
86431 + rhs1 = gimple_assign_rhs1(def_stmt);
86432 + lhs = gimple_get_lhs(def_stmt);
86433 + rhs1_type = TREE_TYPE(rhs1);
86434 + lhs_type = TREE_TYPE(lhs);
86435 + rhs_mode = TYPE_MODE(rhs1_type);
86436 + lhs_mode = TYPE_MODE(lhs_type);
86437 + if (TYPE_UNSIGNED(lhs_type) == TYPE_UNSIGNED(rhs1_type) || lhs_mode != rhs_mode)
86438 + return false;
86439 +
86440 + return true;
86441 +}
86442 +
86443 +static tree handle_unary_rhs(struct pointer_set_t *visited, bool *potentionally_overflowed, gimple stmt)
86444 +{
86445 + tree size_overflow_type, lhs = gimple_get_lhs(stmt);
86446 + tree new_rhs1, rhs1 = gimple_assign_rhs1(stmt);
86447 + const_tree rhs1_type = TREE_TYPE(rhs1);
86448 + const_tree lhs_type = TREE_TYPE(lhs);
86449 +
86450 + *potentionally_overflowed = true;
86451 +
86452 + new_rhs1 = expand(visited, potentionally_overflowed, rhs1);
86453 +
86454 + if (new_rhs1 == NULL_TREE || TREE_CODE(rhs1_type) == POINTER_TYPE)
86455 + return create_assign(visited, potentionally_overflowed, stmt, lhs, AFTER_STMT);
86456 +
86457 + if (gimple_plf(stmt, MY_STMT))
86458 + return lhs;
86459 +
86460 + if (gimple_plf(stmt, NO_CAST_CHECK))
86461 + return follow_overflow_type_and_dup(visited, potentionally_overflowed, stmt, rhs1, new_rhs1, NULL_TREE, NULL_TREE);
86462 +
86463 + if (gimple_assign_rhs_code(stmt) == BIT_NOT_EXPR) {
86464 + size_overflow_type = get_size_overflow_type(stmt, rhs1);
86465 + new_rhs1 = cast_to_new_size_overflow_type(stmt, new_rhs1, size_overflow_type, BEFORE_STMT);
86466 + check_size_overflow(stmt, size_overflow_type, new_rhs1, rhs1, potentionally_overflowed, BEFORE_STMT);
86467 + return create_assign(visited, potentionally_overflowed, stmt, lhs, AFTER_STMT);
86468 + }
86469 +
86470 + if (!gimple_assign_cast_p(stmt) || check_undefined_integer_operation(stmt))
86471 + return follow_overflow_type_and_dup(visited, potentionally_overflowed, stmt, lhs, new_rhs1, NULL_TREE, NULL_TREE);
86472 +
86473 + size_overflow_type = get_size_overflow_type(stmt, rhs1);
86474 + new_rhs1 = cast_to_new_size_overflow_type(stmt, new_rhs1, size_overflow_type, BEFORE_STMT);
86475 +
86476 + change_rhs1(stmt, new_rhs1);
86477 + check_size_overflow(stmt, size_overflow_type, new_rhs1, rhs1, potentionally_overflowed, BEFORE_STMT);
86478 +
86479 + rhs1 = gimple_assign_rhs1(stmt);
86480 + rhs1_type = TREE_TYPE(rhs1);
86481 + if (TYPE_UNSIGNED(rhs1_type) != TYPE_UNSIGNED(lhs_type))
86482 + return create_assign(visited, potentionally_overflowed, stmt, rhs1, AFTER_STMT);
86483 +
86484 + if (!check_mode_type(stmt))
86485 + return create_assign(visited, potentionally_overflowed, stmt, lhs, AFTER_STMT);
86486 +
86487 + size_overflow_type = get_size_overflow_type(stmt, lhs);
86488 + new_rhs1 = cast_to_new_size_overflow_type(stmt, new_rhs1, size_overflow_type, BEFORE_STMT);
86489 +
86490 + check_size_overflow(stmt, size_overflow_type, new_rhs1, lhs, potentionally_overflowed, BEFORE_STMT);
86491 +
86492 + return create_assign(visited, potentionally_overflowed, stmt, lhs, AFTER_STMT);
86493 +}
86494 +
86495 +static tree handle_unary_ops(struct pointer_set_t *visited, bool *potentionally_overflowed, tree lhs)
86496 +{
86497 + gimple def_stmt = get_def_stmt(lhs);
86498 + tree rhs1 = gimple_assign_rhs1(def_stmt);
86499 +
86500 + if (is_gimple_constant(rhs1))
86501 + return create_assign(visited, potentionally_overflowed, def_stmt, lhs, AFTER_STMT);
86502 +
86503 + gcc_assert(TREE_CODE(rhs1) != COND_EXPR);
86504 + switch (TREE_CODE(rhs1)) {
86505 + case SSA_NAME:
86506 + return handle_unary_rhs(visited, potentionally_overflowed, def_stmt);
86507 + case ARRAY_REF:
86508 + case BIT_FIELD_REF:
86509 + case ADDR_EXPR:
86510 + case COMPONENT_REF:
86511 + case INDIRECT_REF:
86512 +#if BUILDING_GCC_VERSION >= 4006
86513 + case MEM_REF:
86514 +#endif
86515 + case PARM_DECL:
86516 + case TARGET_MEM_REF:
86517 + case VAR_DECL:
86518 + return create_assign(visited, potentionally_overflowed, def_stmt, lhs, AFTER_STMT);
86519 +
86520 + default:
86521 + debug_gimple_stmt(def_stmt);
86522 + debug_tree(rhs1);
86523 + gcc_unreachable();
86524 + }
86525 +}
86526 +
86527 +static void insert_cond(basic_block cond_bb, tree arg, enum tree_code cond_code, tree type_value)
86528 +{
86529 + gimple cond_stmt;
86530 + gimple_stmt_iterator gsi = gsi_last_bb(cond_bb);
86531 +
86532 + cond_stmt = gimple_build_cond(cond_code, arg, type_value, NULL_TREE, NULL_TREE);
86533 + gsi_insert_after(&gsi, cond_stmt, GSI_CONTINUE_LINKING);
86534 + update_stmt(cond_stmt);
86535 +}
86536 +
86537 +static tree create_string_param(tree string)
86538 +{
86539 + tree i_type, a_type;
86540 + const int length = TREE_STRING_LENGTH(string);
86541 +
86542 + gcc_assert(length > 0);
86543 +
86544 + i_type = build_index_type(build_int_cst(NULL_TREE, length - 1));
86545 + a_type = build_array_type(char_type_node, i_type);
86546 +
86547 + TREE_TYPE(string) = a_type;
86548 + TREE_CONSTANT(string) = 1;
86549 + TREE_READONLY(string) = 1;
86550 +
86551 + return build1(ADDR_EXPR, ptr_type_node, string);
86552 +}
86553 +
86554 +static void insert_cond_result(basic_block bb_true, const_gimple stmt, const_tree arg, bool min)
86555 +{
86556 + gimple func_stmt;
86557 + const_gimple def_stmt;
86558 + const_tree loc_line;
86559 + tree loc_file, ssa_name, current_func;
86560 + expanded_location xloc;
86561 + char ssa_name_buf[256];
86562 + gimple_stmt_iterator gsi = gsi_start_bb(bb_true);
86563 +
86564 + def_stmt = get_def_stmt(arg);
86565 + xloc = expand_location(gimple_location(def_stmt));
86566 +
86567 + if (!gimple_has_location(def_stmt)) {
86568 + xloc = expand_location(gimple_location(stmt));
86569 + if (!gimple_has_location(stmt))
86570 + xloc = expand_location(DECL_SOURCE_LOCATION(current_function_decl));
86571 + }
86572 +
86573 + loc_line = build_int_cstu(unsigned_type_node, xloc.line);
86574 +
86575 + loc_file = build_string(strlen(xloc.file) + 1, xloc.file);
86576 + loc_file = create_string_param(loc_file);
86577 +
86578 + current_func = build_string(NAME_LEN(current_function_decl) + 1, NAME(current_function_decl));
86579 + current_func = create_string_param(current_func);
86580 +
86581 + snprintf(ssa_name_buf, 256, "%s_%u (%s)\n", NAME(SSA_NAME_VAR(arg)), SSA_NAME_VERSION(arg), min ? "min" : "max");
86582 + ssa_name = build_string(256, ssa_name_buf);
86583 + ssa_name = create_string_param(ssa_name);
86584 +
86585 + // void report_size_overflow(const char *file, unsigned int line, const char *func, const char *ssa_name)
86586 + func_stmt = gimple_build_call(report_size_overflow_decl, 4, loc_file, loc_line, current_func, ssa_name);
86587 +
86588 + gsi_insert_after(&gsi, func_stmt, GSI_CONTINUE_LINKING);
86589 +}
86590 +
86591 +static void __unused print_the_code_insertions(const_gimple stmt)
86592 +{
86593 + location_t loc = gimple_location(stmt);
86594 +
86595 + inform(loc, "Integer size_overflow check applied here.");
86596 +}
86597 +
86598 +static void insert_check_size_overflow(gimple stmt, enum tree_code cond_code, tree arg, tree type_value, bool before, bool min)
86599 +{
86600 + basic_block cond_bb, join_bb, bb_true;
86601 + edge e;
86602 + gimple_stmt_iterator gsi = gsi_for_stmt(stmt);
86603 +
86604 + cond_bb = gimple_bb(stmt);
86605 + if (before)
86606 + gsi_prev(&gsi);
86607 + if (gsi_end_p(gsi))
86608 + e = split_block_after_labels(cond_bb);
86609 + else
86610 + e = split_block(cond_bb, gsi_stmt(gsi));
86611 + cond_bb = e->src;
86612 + join_bb = e->dest;
86613 + e->flags = EDGE_FALSE_VALUE;
86614 + e->probability = REG_BR_PROB_BASE;
86615 +
86616 + bb_true = create_empty_bb(cond_bb);
86617 + make_edge(cond_bb, bb_true, EDGE_TRUE_VALUE);
86618 + make_edge(cond_bb, join_bb, EDGE_FALSE_VALUE);
86619 + make_edge(bb_true, join_bb, EDGE_FALLTHRU);
86620 +
86621 + if (dom_info_available_p(CDI_DOMINATORS)) {
86622 + set_immediate_dominator(CDI_DOMINATORS, bb_true, cond_bb);
86623 + set_immediate_dominator(CDI_DOMINATORS, join_bb, cond_bb);
86624 + }
86625 +
86626 + if (current_loops != NULL) {
86627 + gcc_assert(cond_bb->loop_father == join_bb->loop_father);
86628 + add_bb_to_loop(bb_true, cond_bb->loop_father);
86629 + }
86630 +
86631 + insert_cond(cond_bb, arg, cond_code, type_value);
86632 + insert_cond_result(bb_true, stmt, arg, min);
86633 +
86634 +// print_the_code_insertions(stmt);
86635 +}
86636 +
86637 +static void check_size_overflow(gimple stmt, tree size_overflow_type, tree cast_rhs, tree rhs, bool *potentionally_overflowed, bool before)
86638 +{
86639 + const_tree rhs_type = TREE_TYPE(rhs);
86640 + tree cast_rhs_type, type_max_type, type_min_type, type_max, type_min;
86641 +
86642 + gcc_assert(rhs_type != NULL_TREE);
86643 + gcc_assert(TREE_CODE(rhs_type) == INTEGER_TYPE || TREE_CODE(rhs_type) == BOOLEAN_TYPE || TREE_CODE(rhs_type) == ENUMERAL_TYPE);
86644 +
86645 + if (!*potentionally_overflowed)
86646 + return;
86647 +
86648 + type_max = cast_a_tree(size_overflow_type, TYPE_MAX_VALUE(rhs_type));
86649 + type_min = cast_a_tree(size_overflow_type, TYPE_MIN_VALUE(rhs_type));
86650 +
86651 + gcc_assert(!TREE_OVERFLOW(type_max));
86652 +
86653 + cast_rhs_type = TREE_TYPE(cast_rhs);
86654 + type_max_type = TREE_TYPE(type_max);
86655 + type_min_type = TREE_TYPE(type_min);
86656 + gcc_assert(useless_type_conversion_p(cast_rhs_type, type_max_type));
86657 + gcc_assert(useless_type_conversion_p(type_max_type, type_min_type));
86658 +
86659 + insert_check_size_overflow(stmt, GT_EXPR, cast_rhs, type_max, before, false);
86660 + insert_check_size_overflow(stmt, LT_EXPR, cast_rhs, type_min, before, true);
86661 +}
86662 +
86663 +static tree get_size_overflow_type_for_intentional_overflow(gimple def_stmt, tree change_rhs)
86664 +{
86665 + gimple change_rhs_def_stmt;
86666 + tree lhs = gimple_get_lhs(def_stmt);
86667 + tree lhs_type = TREE_TYPE(lhs);
86668 + tree rhs1_type = TREE_TYPE(gimple_assign_rhs1(def_stmt));
86669 + tree rhs2_type = TREE_TYPE(gimple_assign_rhs2(def_stmt));
86670 +
86671 + if (change_rhs == NULL_TREE)
86672 + return get_size_overflow_type(def_stmt, lhs);
86673 +
86674 + change_rhs_def_stmt = get_def_stmt(change_rhs);
86675 +
86676 + if (TREE_CODE_CLASS(gimple_assign_rhs_code(def_stmt)) == tcc_comparison)
86677 + return get_size_overflow_type(change_rhs_def_stmt, change_rhs);
86678 +
86679 + if (gimple_assign_rhs_code(def_stmt) == LSHIFT_EXPR)
86680 + return get_size_overflow_type(change_rhs_def_stmt, change_rhs);
86681 +
86682 + if (gimple_assign_rhs_code(def_stmt) == RSHIFT_EXPR)
86683 + return get_size_overflow_type(change_rhs_def_stmt, change_rhs);
86684 +
86685 + if (!useless_type_conversion_p(lhs_type, rhs1_type) || !useless_type_conversion_p(rhs1_type, rhs2_type)) {
86686 + debug_gimple_stmt(def_stmt);
86687 + gcc_unreachable();
86688 + }
86689 +
86690 + return get_size_overflow_type(def_stmt, lhs);
86691 +}
86692 +
86693 +static bool is_a_constant_overflow(const_gimple stmt, const_tree rhs)
86694 +{
86695 + if (gimple_assign_rhs_code(stmt) == MIN_EXPR)
86696 + return false;
86697 + if (!is_gimple_constant(rhs))
86698 + return false;
86699 + return true;
86700 +}
86701 +
86702 +static tree get_cast_def_stmt_rhs(const_tree new_rhs)
86703 +{
86704 + gimple def_stmt;
86705 +
86706 + def_stmt = get_def_stmt(new_rhs);
86707 + // get_size_overflow_type
86708 + if (LONG_TYPE_SIZE != GET_MODE_BITSIZE(SImode))
86709 + gcc_assert(gimple_assign_cast_p(def_stmt));
86710 + return gimple_assign_rhs1(def_stmt);
86711 +}
86712 +
86713 +static tree cast_to_int_TI_type_and_check(bool *potentionally_overflowed, gimple stmt, tree new_rhs)
86714 +{
86715 + gimple_stmt_iterator gsi;
86716 + const_gimple cast_stmt;
86717 + gimple def_stmt;
86718 + enum machine_mode mode = TYPE_MODE(TREE_TYPE(new_rhs));
86719 +
86720 + if (mode != TImode && mode != DImode) {
86721 + def_stmt = get_def_stmt(new_rhs);
86722 + gcc_assert(gimple_assign_cast_p(def_stmt));
86723 + new_rhs = gimple_assign_rhs1(def_stmt);
86724 + mode = TYPE_MODE(TREE_TYPE(new_rhs));
86725 + }
86726 +
86727 + gcc_assert(mode == TImode || mode == DImode);
86728 +
86729 + if (mode == TYPE_MODE(intTI_type_node) && useless_type_conversion_p(TREE_TYPE(new_rhs), intTI_type_node))
86730 + return new_rhs;
86731 +
86732 + gsi = gsi_for_stmt(stmt);
86733 + cast_stmt = build_cast_stmt(intTI_type_node, new_rhs, CREATE_NEW_VAR, &gsi, BEFORE_STMT);
86734 + new_rhs = gimple_get_lhs(cast_stmt);
86735 +
86736 + if (mode == DImode)
86737 + return new_rhs;
86738 +
86739 + check_size_overflow(stmt, intTI_type_node, new_rhs, new_rhs, potentionally_overflowed, BEFORE_STMT);
86740 +
86741 + return new_rhs;
86742 +}
86743 +
86744 +static bool is_an_integer_trunction(const_gimple stmt)
86745 +{
86746 + gimple rhs1_def_stmt, rhs2_def_stmt;
86747 + const_tree rhs1_def_stmt_rhs1, rhs2_def_stmt_rhs1;
86748 + enum machine_mode rhs1_def_stmt_rhs1_mode, rhs2_def_stmt_rhs1_mode;
86749 + const_tree rhs1 = gimple_assign_rhs1(stmt);
86750 + const_tree rhs2 = gimple_assign_rhs2(stmt);
86751 + enum machine_mode rhs1_mode = TYPE_MODE(TREE_TYPE(rhs1));
86752 + enum machine_mode rhs2_mode = TYPE_MODE(TREE_TYPE(rhs2));
86753 +
86754 + if (is_gimple_constant(rhs1) || is_gimple_constant(rhs2))
86755 + return false;
86756 +
86757 + gcc_assert(TREE_CODE(rhs1) == SSA_NAME && TREE_CODE(rhs2) == SSA_NAME);
86758 +
86759 + if (gimple_assign_rhs_code(stmt) != MINUS_EXPR || rhs1_mode != SImode || rhs2_mode != SImode)
86760 + return false;
86761 +
86762 + rhs1_def_stmt = get_def_stmt(rhs1);
86763 + rhs2_def_stmt = get_def_stmt(rhs2);
86764 + if (!gimple_assign_cast_p(rhs1_def_stmt) || !gimple_assign_cast_p(rhs2_def_stmt))
86765 + return false;
86766 +
86767 + rhs1_def_stmt_rhs1 = gimple_assign_rhs1(rhs1_def_stmt);
86768 + rhs2_def_stmt_rhs1 = gimple_assign_rhs1(rhs2_def_stmt);
86769 + rhs1_def_stmt_rhs1_mode = TYPE_MODE(TREE_TYPE(rhs1_def_stmt_rhs1));
86770 + rhs2_def_stmt_rhs1_mode = TYPE_MODE(TREE_TYPE(rhs2_def_stmt_rhs1));
86771 + if (rhs1_def_stmt_rhs1_mode != DImode || rhs2_def_stmt_rhs1_mode != DImode)
86772 + return false;
86773 +
86774 + gimple_set_plf(rhs1_def_stmt, NO_CAST_CHECK, true);
86775 + gimple_set_plf(rhs2_def_stmt, NO_CAST_CHECK, true);
86776 + return true;
86777 +}
86778 +
86779 +static tree handle_integer_truncation(struct pointer_set_t *visited, bool *potentionally_overflowed, tree lhs)
86780 +{
86781 + tree new_rhs1, new_rhs2;
86782 + tree new_rhs1_def_stmt_rhs1, new_rhs2_def_stmt_rhs1, new_lhs;
86783 + tree new_rhs1_def_stmt_rhs1_type, new_rhs2_def_stmt_rhs1_type;
86784 + gimple assign, stmt = get_def_stmt(lhs);
86785 + tree rhs1 = gimple_assign_rhs1(stmt);
86786 + tree rhs2 = gimple_assign_rhs2(stmt);
86787 +
86788 + if (!is_an_integer_trunction(stmt))
86789 + return NULL_TREE;
86790 +
86791 + new_rhs1 = expand(visited, potentionally_overflowed, rhs1);
86792 + new_rhs2 = expand(visited, potentionally_overflowed, rhs2);
86793 +
86794 + new_rhs1_def_stmt_rhs1 = get_cast_def_stmt_rhs(new_rhs1);
86795 + new_rhs2_def_stmt_rhs1 = get_cast_def_stmt_rhs(new_rhs2);
86796 +
86797 + new_rhs1_def_stmt_rhs1_type = TREE_TYPE(new_rhs1_def_stmt_rhs1);
86798 + new_rhs2_def_stmt_rhs1_type = TREE_TYPE(new_rhs2_def_stmt_rhs1);
86799 +
86800 + if (!useless_type_conversion_p(new_rhs1_def_stmt_rhs1_type, new_rhs2_def_stmt_rhs1_type)) {
86801 + new_rhs1_def_stmt_rhs1 = cast_to_int_TI_type_and_check(potentionally_overflowed, stmt, new_rhs1_def_stmt_rhs1);
86802 + new_rhs2_def_stmt_rhs1 = cast_to_int_TI_type_and_check(potentionally_overflowed, stmt, new_rhs2_def_stmt_rhs1);
86803 + }
86804 +
86805 + assign = create_binary_assign(MINUS_EXPR, stmt, new_rhs1_def_stmt_rhs1, new_rhs2_def_stmt_rhs1);
86806 + new_lhs = gimple_get_lhs(assign);
86807 + check_size_overflow(assign, TREE_TYPE(new_lhs), new_lhs, rhs1, potentionally_overflowed, AFTER_STMT);
86808 +
86809 + return follow_overflow_type_and_dup(visited, potentionally_overflowed, stmt, lhs, new_rhs1, new_rhs2, NULL_TREE);
86810 +}
86811 +
86812 +static bool is_a_neg_overflow(const_gimple stmt, const_tree rhs)
86813 +{
86814 + const_gimple def_stmt;
86815 +
86816 + if (TREE_CODE(rhs) != SSA_NAME)
86817 + return false;
86818 +
86819 + if (gimple_assign_rhs_code(stmt) != PLUS_EXPR)
86820 + return false;
86821 +
86822 + def_stmt = get_def_stmt(rhs);
86823 + if (gimple_code(def_stmt) != GIMPLE_ASSIGN || gimple_assign_rhs_code(def_stmt) != BIT_NOT_EXPR)
86824 + return false;
86825 +
86826 + return true;
86827 +}
86828 +
86829 +static tree handle_intentional_overflow(struct pointer_set_t *visited, bool *potentionally_overflowed, bool check_overflow, gimple stmt, tree change_rhs, tree new_rhs1, tree new_rhs2)
86830 +{
86831 + tree new_rhs, size_overflow_type, orig_rhs;
86832 + void (*gimple_assign_set_rhs)(gimple, tree);
86833 + tree rhs1 = gimple_assign_rhs1(stmt);
86834 + tree rhs2 = gimple_assign_rhs2(stmt);
86835 + tree lhs = gimple_get_lhs(stmt);
86836 +
86837 + if (change_rhs == NULL_TREE)
86838 + return create_assign(visited, potentionally_overflowed, stmt, lhs, AFTER_STMT);
86839 +
86840 + if (new_rhs2 == NULL_TREE) {
86841 + size_overflow_type = get_size_overflow_type_for_intentional_overflow(stmt, new_rhs1);
86842 + new_rhs2 = cast_a_tree(size_overflow_type, rhs2);
86843 + orig_rhs = rhs1;
86844 + gimple_assign_set_rhs = &gimple_assign_set_rhs1;
86845 + } else {
86846 + size_overflow_type = get_size_overflow_type_for_intentional_overflow(stmt, new_rhs2);
86847 + new_rhs1 = cast_a_tree(size_overflow_type, rhs1);
86848 + orig_rhs = rhs2;
86849 + gimple_assign_set_rhs = &gimple_assign_set_rhs2;
86850 + }
86851 +
86852 + change_rhs = cast_to_new_size_overflow_type(stmt, change_rhs, size_overflow_type, BEFORE_STMT);
86853 +
86854 + if (check_overflow)
86855 + check_size_overflow(stmt, size_overflow_type, change_rhs, orig_rhs, potentionally_overflowed, BEFORE_STMT);
86856 +
86857 + new_rhs = change_assign_rhs(stmt, orig_rhs, change_rhs);
86858 + gimple_assign_set_rhs(stmt, new_rhs);
86859 + update_stmt(stmt);
86860 +
86861 + return create_assign(visited, potentionally_overflowed, stmt, lhs, AFTER_STMT);
86862 +}
86863 +
86864 +static tree handle_binary_ops(struct pointer_set_t *visited, bool *potentionally_overflowed, tree lhs)
86865 +{
86866 + tree rhs1, rhs2, new_lhs;
86867 + gimple def_stmt = get_def_stmt(lhs);
86868 + tree new_rhs1 = NULL_TREE;
86869 + tree new_rhs2 = NULL_TREE;
86870 +
86871 + rhs1 = gimple_assign_rhs1(def_stmt);
86872 + rhs2 = gimple_assign_rhs2(def_stmt);
86873 +
86874 + /* no DImode/TImode division in the 32/64 bit kernel */
86875 + switch (gimple_assign_rhs_code(def_stmt)) {
86876 + case RDIV_EXPR:
86877 + case TRUNC_DIV_EXPR:
86878 + case CEIL_DIV_EXPR:
86879 + case FLOOR_DIV_EXPR:
86880 + case ROUND_DIV_EXPR:
86881 + case TRUNC_MOD_EXPR:
86882 + case CEIL_MOD_EXPR:
86883 + case FLOOR_MOD_EXPR:
86884 + case ROUND_MOD_EXPR:
86885 + case EXACT_DIV_EXPR:
86886 + case POINTER_PLUS_EXPR:
86887 + case BIT_AND_EXPR:
86888 + return create_assign(visited, potentionally_overflowed, def_stmt, lhs, AFTER_STMT);
86889 + default:
86890 + break;
86891 + }
86892 +
86893 + *potentionally_overflowed = true;
86894 +
86895 + new_lhs = handle_integer_truncation(visited, potentionally_overflowed, lhs);
86896 + if (new_lhs != NULL_TREE)
86897 + return new_lhs;
86898 +
86899 + if (TREE_CODE(rhs1) == SSA_NAME)
86900 + new_rhs1 = expand(visited, potentionally_overflowed, rhs1);
86901 + if (TREE_CODE(rhs2) == SSA_NAME)
86902 + new_rhs2 = expand(visited, potentionally_overflowed, rhs2);
86903 +
86904 + if (is_a_neg_overflow(def_stmt, rhs2))
86905 + return handle_intentional_overflow(visited, potentionally_overflowed, true, def_stmt, new_rhs1, new_rhs1, NULL_TREE);
86906 + if (is_a_neg_overflow(def_stmt, rhs1))
86907 + return handle_intentional_overflow(visited, potentionally_overflowed, true, def_stmt, new_rhs2, NULL_TREE, new_rhs2);
86908 +
86909 + if (is_a_constant_overflow(def_stmt, rhs2))
86910 + return handle_intentional_overflow(visited, potentionally_overflowed, !is_a_cast_and_const_overflow(rhs1), def_stmt, new_rhs1, new_rhs1, NULL_TREE);
86911 + if (is_a_constant_overflow(def_stmt, rhs1))
86912 + return handle_intentional_overflow(visited, potentionally_overflowed, !is_a_cast_and_const_overflow(rhs2), def_stmt, new_rhs2, NULL_TREE, new_rhs2);
86913 +
86914 + return follow_overflow_type_and_dup(visited, potentionally_overflowed, def_stmt, lhs, new_rhs1, new_rhs2, NULL_TREE);
86915 +}
86916 +
86917 +#if BUILDING_GCC_VERSION >= 4007
86918 +static tree get_new_rhs(struct pointer_set_t *visited, bool *potentionally_overflowed, tree size_overflow_type, tree rhs)
86919 +{
86920 + if (is_gimple_constant(rhs))
86921 + return cast_a_tree(size_overflow_type, rhs);
86922 + if (TREE_CODE(rhs) != SSA_NAME)
86923 + return NULL_TREE;
86924 + return expand(visited, potentionally_overflowed, rhs);
86925 +}
86926 +
86927 +static tree handle_ternary_ops(struct pointer_set_t *visited, bool *potentionally_overflowed, tree lhs)
86928 +{
86929 + tree rhs1, rhs2, rhs3, new_rhs1, new_rhs2, new_rhs3, size_overflow_type;
86930 + gimple def_stmt = get_def_stmt(lhs);
86931 +
86932 + *potentionally_overflowed = true;
86933 +
86934 + size_overflow_type = get_size_overflow_type(def_stmt, lhs);
86935 +
86936 + rhs1 = gimple_assign_rhs1(def_stmt);
86937 + rhs2 = gimple_assign_rhs2(def_stmt);
86938 + rhs3 = gimple_assign_rhs3(def_stmt);
86939 + new_rhs1 = get_new_rhs(visited, potentionally_overflowed, size_overflow_type, rhs1);
86940 + new_rhs2 = get_new_rhs(visited, potentionally_overflowed, size_overflow_type, rhs2);
86941 + new_rhs3 = get_new_rhs(visited, potentionally_overflowed, size_overflow_type, rhs3);
86942 +
86943 + return follow_overflow_type_and_dup(visited, potentionally_overflowed, def_stmt, lhs, new_rhs1, new_rhs2, new_rhs3);
86944 +}
86945 +#endif
86946 +
86947 +static tree get_size_overflow_type(gimple stmt, tree node)
86948 +{
86949 + tree type;
86950 +
86951 + gcc_assert(node != NULL_TREE);
86952 +
86953 + type = TREE_TYPE(node);
86954 +
86955 + if (gimple_plf(stmt, MY_STMT))
86956 + return TREE_TYPE(node);
86957 +
86958 + switch (TYPE_MODE(type)) {
86959 + case QImode:
86960 + return (TYPE_UNSIGNED(type)) ? unsigned_intHI_type_node : intHI_type_node;
86961 + case HImode:
86962 + return (TYPE_UNSIGNED(type)) ? unsigned_intSI_type_node : intSI_type_node;
86963 + case SImode:
86964 + return (TYPE_UNSIGNED(type)) ? unsigned_intDI_type_node : intDI_type_node;
86965 + case DImode:
86966 + if (LONG_TYPE_SIZE == GET_MODE_BITSIZE(SImode))
86967 + return (TYPE_UNSIGNED(type)) ? unsigned_intDI_type_node : intDI_type_node;
86968 + return (TYPE_UNSIGNED(type)) ? unsigned_intTI_type_node : intTI_type_node;
86969 + default:
86970 + debug_tree(node);
86971 + error("get_size_overflow_type: unsupported gcc configuration.");
86972 + gcc_unreachable();
86973 + }
86974 +}
86975 +
86976 +static tree expand_visited(gimple def_stmt)
86977 +{
86978 + const_gimple next_stmt;
86979 + gimple_stmt_iterator gsi = gsi_for_stmt(def_stmt);
86980 +
86981 + gsi_next(&gsi);
86982 + next_stmt = gsi_stmt(gsi);
86983 +
86984 + switch (gimple_code(next_stmt)) {
86985 + case GIMPLE_ASSIGN:
86986 + return gimple_get_lhs(next_stmt);
86987 + case GIMPLE_PHI:
86988 + return gimple_phi_result(next_stmt);
86989 + case GIMPLE_CALL:
86990 + return gimple_call_lhs(next_stmt);
86991 + default:
86992 + return NULL_TREE;
86993 + }
86994 +}
86995 +
86996 +static tree expand(struct pointer_set_t *visited, bool *potentionally_overflowed, tree lhs)
86997 +{
86998 + gimple def_stmt;
86999 + enum tree_code code = TREE_CODE(TREE_TYPE(lhs));
87000 +
87001 + if (is_gimple_constant(lhs))
87002 + return NULL_TREE;
87003 +
87004 + if (TREE_CODE(lhs) == ADDR_EXPR)
87005 + return NULL_TREE;
87006 +
87007 + gcc_assert(code == INTEGER_TYPE || code == POINTER_TYPE || code == BOOLEAN_TYPE || code == ENUMERAL_TYPE);
87008 +
87009 + if (TREE_CODE(SSA_NAME_VAR(lhs)) == PARM_DECL)
87010 + check_missing_attribute(lhs);
87011 +
87012 + def_stmt = get_def_stmt(lhs);
87013 +
87014 + if (!def_stmt)
87015 + return NULL_TREE;
87016 +
87017 + if (gimple_plf(def_stmt, MY_STMT))
87018 + return lhs;
87019 +
87020 + if (pointer_set_contains(visited, def_stmt))
87021 + return expand_visited(def_stmt);
87022 +
87023 + switch (gimple_code(def_stmt)) {
87024 + case GIMPLE_NOP:
87025 + check_missing_attribute(lhs);
87026 + return NULL_TREE;
87027 + case GIMPLE_PHI:
87028 + return build_new_phi(visited, potentionally_overflowed, lhs);
87029 + case GIMPLE_CALL:
87030 + case GIMPLE_ASM:
87031 + return create_assign(visited, potentionally_overflowed, def_stmt, lhs, AFTER_STMT);
87032 + case GIMPLE_ASSIGN:
87033 + switch (gimple_num_ops(def_stmt)) {
87034 + case 2:
87035 + return handle_unary_ops(visited, potentionally_overflowed, lhs);
87036 + case 3:
87037 + return handle_binary_ops(visited, potentionally_overflowed, lhs);
87038 +#if BUILDING_GCC_VERSION >= 4007
87039 + case 4:
87040 + return handle_ternary_ops(visited, potentionally_overflowed, lhs);
87041 +#endif
87042 + }
87043 + default:
87044 + debug_gimple_stmt(def_stmt);
87045 + error("expand: unknown gimple code");
87046 + gcc_unreachable();
87047 + }
87048 +}
87049 +
87050 +static void change_function_arg(gimple stmt, const_tree origarg, unsigned int argnum, tree newarg)
87051 +{
87052 + const_gimple assign;
87053 + gimple_stmt_iterator gsi = gsi_for_stmt(stmt);
87054 + tree origtype = TREE_TYPE(origarg);
87055 +
87056 + gcc_assert(gimple_code(stmt) == GIMPLE_CALL);
87057 +
87058 + assign = build_cast_stmt(origtype, newarg, CREATE_NEW_VAR, &gsi, BEFORE_STMT);
87059 +
87060 + gimple_call_set_arg(stmt, argnum, gimple_get_lhs(assign));
87061 + update_stmt(stmt);
87062 +}
87063 +
87064 +static tree get_function_arg(unsigned int argnum, const_gimple stmt, const_tree fndecl)
87065 +{
87066 + const char *origid;
87067 + tree arg;
87068 + const_tree origarg;
87069 +
87070 + if (!DECL_ABSTRACT_ORIGIN(fndecl)) {
87071 + gcc_assert(gimple_call_num_args(stmt) > argnum);
87072 + return gimple_call_arg(stmt, argnum);
87073 + }
87074 +
87075 + origarg = DECL_ARGUMENTS(DECL_ABSTRACT_ORIGIN(fndecl));
87076 + while (origarg && argnum) {
87077 + argnum--;
87078 + origarg = TREE_CHAIN(origarg);
87079 + }
87080 +
87081 + gcc_assert(argnum == 0);
87082 +
87083 + gcc_assert(origarg != NULL_TREE);
87084 + origid = NAME(origarg);
87085 + for (arg = DECL_ARGUMENTS(fndecl); arg; arg = TREE_CHAIN(arg)) {
87086 + if (!strcmp(origid, NAME(arg)))
87087 + return arg;
87088 + }
87089 + return NULL_TREE;
87090 +}
87091 +
87092 +static void handle_function_arg(gimple stmt, const_tree fndecl, unsigned int argnum)
87093 +{
87094 + struct pointer_set_t *visited;
87095 + tree arg, newarg;
87096 + bool potentionally_overflowed;
87097 +
87098 + arg = get_function_arg(argnum, stmt, fndecl);
87099 + if (arg == NULL_TREE)
87100 + return;
87101 +
87102 + if (is_gimple_constant(arg))
87103 + return;
87104 + if (TREE_CODE(arg) != SSA_NAME)
87105 + return;
87106 +
87107 + check_arg_type(arg);
87108 +
87109 + visited = pointer_set_create();
87110 + potentionally_overflowed = false;
87111 + newarg = expand(visited, &potentionally_overflowed, arg);
87112 + pointer_set_destroy(visited);
87113 +
87114 + if (newarg == NULL_TREE || !potentionally_overflowed)
87115 + return;
87116 +
87117 + change_function_arg(stmt, arg, argnum, newarg);
87118 +
87119 + check_size_overflow(stmt, TREE_TYPE(newarg), newarg, arg, &potentionally_overflowed, BEFORE_STMT);
87120 +}
87121 +
87122 +static void handle_function_by_attribute(gimple stmt, const_tree attr, const_tree fndecl)
87123 +{
87124 + tree p = TREE_VALUE(attr);
87125 + do {
87126 + handle_function_arg(stmt, fndecl, TREE_INT_CST_LOW(TREE_VALUE(p))-1);
87127 + p = TREE_CHAIN(p);
87128 + } while (p);
87129 +}
87130 +
87131 +static void handle_function_by_hash(gimple stmt, const_tree fndecl)
87132 +{
87133 + const_tree orig_fndecl;
87134 + unsigned int num;
87135 + const struct size_overflow_hash *hash;
87136 +
87137 + orig_fndecl = get_original_function_decl(fndecl);
87138 + hash = get_function_hash(orig_fndecl);
87139 + if (!hash)
87140 + return;
87141 +
87142 + for (num = 1; num <= MAX_PARAM; num++)
87143 + if (hash->param & (1U << num))
87144 + handle_function_arg(stmt, fndecl, num - 1);
87145 +}
87146 +
87147 +static void set_plf_false(void)
87148 +{
87149 + basic_block bb;
87150 +
87151 + FOR_ALL_BB(bb) {
87152 + gimple_stmt_iterator si;
87153 +
87154 + for (si = gsi_start_bb(bb); !gsi_end_p(si); gsi_next(&si))
87155 + gimple_set_plf(gsi_stmt(si), MY_STMT, false);
87156 + for (si = gsi_start_phis(bb); !gsi_end_p(si); gsi_next(&si))
87157 + gimple_set_plf(gsi_stmt(si), MY_STMT, false);
87158 + }
87159 +}
87160 +
87161 +static unsigned int handle_function(void)
87162 +{
87163 + basic_block next, bb = ENTRY_BLOCK_PTR->next_bb;
87164 +
87165 + set_plf_false();
87166 +
87167 + do {
87168 + gimple_stmt_iterator gsi;
87169 + next = bb->next_bb;
87170 +
87171 + for (gsi = gsi_start_bb(bb); !gsi_end_p(gsi); gsi_next(&gsi)) {
87172 + const_tree fndecl, attr;
87173 + gimple stmt = gsi_stmt(gsi);
87174 +
87175 + if (!(is_gimple_call(stmt)))
87176 + continue;
87177 + fndecl = gimple_call_fndecl(stmt);
87178 + if (fndecl == NULL_TREE)
87179 + continue;
87180 + if (gimple_call_num_args(stmt) == 0)
87181 + continue;
87182 + attr = lookup_attribute("size_overflow", DECL_ATTRIBUTES(fndecl));
87183 + if (!attr || !TREE_VALUE(attr))
87184 + handle_function_by_hash(stmt, fndecl);
87185 + else
87186 + handle_function_by_attribute(stmt, attr, fndecl);
87187 + gsi = gsi_for_stmt(stmt);
87188 + next = gimple_bb(stmt)->next_bb;
87189 + }
87190 + bb = next;
87191 + } while (bb);
87192 + return 0;
87193 +}
87194 +
87195 +static struct gimple_opt_pass size_overflow_pass = {
87196 + .pass = {
87197 + .type = GIMPLE_PASS,
87198 + .name = "size_overflow",
87199 + .gate = NULL,
87200 + .execute = handle_function,
87201 + .sub = NULL,
87202 + .next = NULL,
87203 + .static_pass_number = 0,
87204 + .tv_id = TV_NONE,
87205 + .properties_required = PROP_cfg | PROP_referenced_vars,
87206 + .properties_provided = 0,
87207 + .properties_destroyed = 0,
87208 + .todo_flags_start = 0,
87209 + .todo_flags_finish = TODO_verify_ssa | TODO_verify_stmts | TODO_dump_func | TODO_remove_unused_locals | TODO_update_ssa_no_phi | TODO_cleanup_cfg | TODO_ggc_collect | TODO_verify_flow
87210 + }
87211 +};
87212 +
87213 +static void start_unit_callback(void __unused *gcc_data, void __unused *user_data)
87214 +{
87215 + tree fntype;
87216 +
87217 + const_char_ptr_type_node = build_pointer_type(build_type_variant(char_type_node, 1, 0));
87218 +
87219 + // void report_size_overflow(const char *loc_file, unsigned int loc_line, const char *current_func, const char *ssa_var)
87220 + fntype = build_function_type_list(void_type_node,
87221 + const_char_ptr_type_node,
87222 + unsigned_type_node,
87223 + const_char_ptr_type_node,
87224 + const_char_ptr_type_node,
87225 + NULL_TREE);
87226 + report_size_overflow_decl = build_fn_decl("report_size_overflow", fntype);
87227 +
87228 + DECL_ASSEMBLER_NAME(report_size_overflow_decl);
87229 + TREE_PUBLIC(report_size_overflow_decl) = 1;
87230 + DECL_EXTERNAL(report_size_overflow_decl) = 1;
87231 + DECL_ARTIFICIAL(report_size_overflow_decl) = 1;
87232 + TREE_THIS_VOLATILE(report_size_overflow_decl) = 1;
87233 +}
87234 +
87235 +int plugin_init(struct plugin_name_args *plugin_info, struct plugin_gcc_version *version)
87236 +{
87237 + int i;
87238 + const char * const plugin_name = plugin_info->base_name;
87239 + const int argc = plugin_info->argc;
87240 + const struct plugin_argument * const argv = plugin_info->argv;
87241 + bool enable = true;
87242 +
87243 + struct register_pass_info size_overflow_pass_info = {
87244 + .pass = &size_overflow_pass.pass,
87245 + .reference_pass_name = "ssa",
87246 + .ref_pass_instance_number = 1,
87247 + .pos_op = PASS_POS_INSERT_AFTER
87248 + };
87249 +
87250 + if (!plugin_default_version_check(version, &gcc_version)) {
87251 + error(G_("incompatible gcc/plugin versions"));
87252 + return 1;
87253 + }
87254 +
87255 + for (i = 0; i < argc; ++i) {
87256 + if (!strcmp(argv[i].key, "no-size-overflow")) {
87257 + enable = false;
87258 + continue;
87259 + }
87260 + error(G_("unkown option '-fplugin-arg-%s-%s'"), plugin_name, argv[i].key);
87261 + }
87262 +
87263 + register_callback(plugin_name, PLUGIN_INFO, NULL, &size_overflow_plugin_info);
87264 + if (enable) {
87265 + register_callback("start_unit", PLUGIN_START_UNIT, &start_unit_callback, NULL);
87266 + register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &size_overflow_pass_info);
87267 + }
87268 + register_callback(plugin_name, PLUGIN_ATTRIBUTES, register_attributes, NULL);
87269 +
87270 + return 0;
87271 +}
87272 diff --git a/tools/gcc/stackleak_plugin.c b/tools/gcc/stackleak_plugin.c
87273 new file mode 100644
87274 index 0000000..38d2014
87275 --- /dev/null
87276 +++ b/tools/gcc/stackleak_plugin.c
87277 @@ -0,0 +1,313 @@
87278 +/*
87279 + * Copyright 2011 by the PaX Team <pageexec@freemail.hu>
87280 + * Licensed under the GPL v2
87281 + *
87282 + * Note: the choice of the license means that the compilation process is
87283 + * NOT 'eligible' as defined by gcc's library exception to the GPL v3,
87284 + * but for the kernel it doesn't matter since it doesn't link against
87285 + * any of the gcc libraries
87286 + *
87287 + * gcc plugin to help implement various PaX features
87288 + *
87289 + * - track lowest stack pointer
87290 + *
87291 + * TODO:
87292 + * - initialize all local variables
87293 + *
87294 + * BUGS:
87295 + * - none known
87296 + */
87297 +#include "gcc-plugin.h"
87298 +#include "config.h"
87299 +#include "system.h"
87300 +#include "coretypes.h"
87301 +#include "tree.h"
87302 +#include "tree-pass.h"
87303 +#include "flags.h"
87304 +#include "intl.h"
87305 +#include "toplev.h"
87306 +#include "plugin.h"
87307 +//#include "expr.h" where are you...
87308 +#include "diagnostic.h"
87309 +#include "plugin-version.h"
87310 +#include "tm.h"
87311 +#include "function.h"
87312 +#include "basic-block.h"
87313 +#include "gimple.h"
87314 +#include "rtl.h"
87315 +#include "emit-rtl.h"
87316 +
87317 +extern void print_gimple_stmt(FILE *, gimple, int, int);
87318 +
87319 +int plugin_is_GPL_compatible;
87320 +
87321 +static int track_frame_size = -1;
87322 +static const char track_function[] = "pax_track_stack";
87323 +static const char check_function[] = "pax_check_alloca";
87324 +static bool init_locals;
87325 +
87326 +static struct plugin_info stackleak_plugin_info = {
87327 + .version = "201203140940",
87328 + .help = "track-lowest-sp=nn\ttrack sp in functions whose frame size is at least nn bytes\n"
87329 +// "initialize-locals\t\tforcibly initialize all stack frames\n"
87330 +};
87331 +
87332 +static bool gate_stackleak_track_stack(void);
87333 +static unsigned int execute_stackleak_tree_instrument(void);
87334 +static unsigned int execute_stackleak_final(void);
87335 +
87336 +static struct gimple_opt_pass stackleak_tree_instrument_pass = {
87337 + .pass = {
87338 + .type = GIMPLE_PASS,
87339 + .name = "stackleak_tree_instrument",
87340 + .gate = gate_stackleak_track_stack,
87341 + .execute = execute_stackleak_tree_instrument,
87342 + .sub = NULL,
87343 + .next = NULL,
87344 + .static_pass_number = 0,
87345 + .tv_id = TV_NONE,
87346 + .properties_required = PROP_gimple_leh | PROP_cfg,
87347 + .properties_provided = 0,
87348 + .properties_destroyed = 0,
87349 + .todo_flags_start = 0, //TODO_verify_ssa | TODO_verify_flow | TODO_verify_stmts,
87350 + .todo_flags_finish = TODO_verify_ssa | TODO_verify_stmts | TODO_dump_func | TODO_update_ssa
87351 + }
87352 +};
87353 +
87354 +static struct rtl_opt_pass stackleak_final_rtl_opt_pass = {
87355 + .pass = {
87356 + .type = RTL_PASS,
87357 + .name = "stackleak_final",
87358 + .gate = gate_stackleak_track_stack,
87359 + .execute = execute_stackleak_final,
87360 + .sub = NULL,
87361 + .next = NULL,
87362 + .static_pass_number = 0,
87363 + .tv_id = TV_NONE,
87364 + .properties_required = 0,
87365 + .properties_provided = 0,
87366 + .properties_destroyed = 0,
87367 + .todo_flags_start = 0,
87368 + .todo_flags_finish = TODO_dump_func
87369 + }
87370 +};
87371 +
87372 +static bool gate_stackleak_track_stack(void)
87373 +{
87374 + return track_frame_size >= 0;
87375 +}
87376 +
87377 +static void stackleak_check_alloca(gimple_stmt_iterator *gsi)
87378 +{
87379 + gimple check_alloca;
87380 + tree fntype, fndecl, alloca_size;
87381 +
87382 + fntype = build_function_type_list(void_type_node, long_unsigned_type_node, NULL_TREE);
87383 + fndecl = build_fn_decl(check_function, fntype);
87384 + DECL_ASSEMBLER_NAME(fndecl); // for LTO
87385 +
87386 + // insert call to void pax_check_alloca(unsigned long size)
87387 + alloca_size = gimple_call_arg(gsi_stmt(*gsi), 0);
87388 + check_alloca = gimple_build_call(fndecl, 1, alloca_size);
87389 + gsi_insert_before(gsi, check_alloca, GSI_SAME_STMT);
87390 +}
87391 +
87392 +static void stackleak_add_instrumentation(gimple_stmt_iterator *gsi)
87393 +{
87394 + gimple track_stack;
87395 + tree fntype, fndecl;
87396 +
87397 + fntype = build_function_type_list(void_type_node, NULL_TREE);
87398 + fndecl = build_fn_decl(track_function, fntype);
87399 + DECL_ASSEMBLER_NAME(fndecl); // for LTO
87400 +
87401 + // insert call to void pax_track_stack(void)
87402 + track_stack = gimple_build_call(fndecl, 0);
87403 + gsi_insert_after(gsi, track_stack, GSI_CONTINUE_LINKING);
87404 +}
87405 +
87406 +#if BUILDING_GCC_VERSION == 4005
87407 +static bool gimple_call_builtin_p(gimple stmt, enum built_in_function code)
87408 +{
87409 + tree fndecl;
87410 +
87411 + if (!is_gimple_call(stmt))
87412 + return false;
87413 + fndecl = gimple_call_fndecl(stmt);
87414 + if (!fndecl)
87415 + return false;
87416 + if (DECL_BUILT_IN_CLASS(fndecl) != BUILT_IN_NORMAL)
87417 + return false;
87418 +// print_node(stderr, "pax", fndecl, 4);
87419 + return DECL_FUNCTION_CODE(fndecl) == code;
87420 +}
87421 +#endif
87422 +
87423 +static bool is_alloca(gimple stmt)
87424 +{
87425 + if (gimple_call_builtin_p(stmt, BUILT_IN_ALLOCA))
87426 + return true;
87427 +
87428 +#if BUILDING_GCC_VERSION >= 4007
87429 + if (gimple_call_builtin_p(stmt, BUILT_IN_ALLOCA_WITH_ALIGN))
87430 + return true;
87431 +#endif
87432 +
87433 + return false;
87434 +}
87435 +
87436 +static unsigned int execute_stackleak_tree_instrument(void)
87437 +{
87438 + basic_block bb, entry_bb;
87439 + bool prologue_instrumented = false, is_leaf = true;
87440 +
87441 + entry_bb = ENTRY_BLOCK_PTR_FOR_FUNCTION(cfun)->next_bb;
87442 +
87443 + // 1. loop through BBs and GIMPLE statements
87444 + FOR_EACH_BB(bb) {
87445 + gimple_stmt_iterator gsi;
87446 +
87447 + for (gsi = gsi_start_bb(bb); !gsi_end_p(gsi); gsi_next(&gsi)) {
87448 + gimple stmt;
87449 +
87450 + stmt = gsi_stmt(gsi);
87451 +
87452 + if (is_gimple_call(stmt))
87453 + is_leaf = false;
87454 +
87455 + // gimple match: align 8 built-in BUILT_IN_NORMAL:BUILT_IN_ALLOCA attributes <tree_list 0xb7576450>
87456 + if (!is_alloca(stmt))
87457 + continue;
87458 +
87459 + // 2. insert stack overflow check before each __builtin_alloca call
87460 + stackleak_check_alloca(&gsi);
87461 +
87462 + // 3. insert track call after each __builtin_alloca call
87463 + stackleak_add_instrumentation(&gsi);
87464 + if (bb == entry_bb)
87465 + prologue_instrumented = true;
87466 + }
87467 + }
87468 +
87469 + // special cases for some bad linux code: taking the address of static inline functions will materialize them
87470 + // but we mustn't instrument some of them as the resulting stack alignment required by the function call ABI
87471 + // will break other assumptions regarding the expected (but not otherwise enforced) register clobbering ABI.
87472 + // case in point: native_save_fl on amd64 when optimized for size clobbers rdx if it were instrumented here.
87473 + if (is_leaf && !TREE_PUBLIC(current_function_decl) && DECL_DECLARED_INLINE_P(current_function_decl))
87474 + return 0;
87475 + if (is_leaf && !strncmp(IDENTIFIER_POINTER(DECL_NAME(current_function_decl)), "_paravirt_", 10))
87476 + return 0;
87477 +
87478 + // 4. insert track call at the beginning
87479 + if (!prologue_instrumented) {
87480 + gimple_stmt_iterator gsi;
87481 +
87482 + bb = split_block_after_labels(ENTRY_BLOCK_PTR)->dest;
87483 + if (dom_info_available_p(CDI_DOMINATORS))
87484 + set_immediate_dominator(CDI_DOMINATORS, bb, ENTRY_BLOCK_PTR);
87485 + gsi = gsi_start_bb(bb);
87486 + stackleak_add_instrumentation(&gsi);
87487 + }
87488 +
87489 + return 0;
87490 +}
87491 +
87492 +static unsigned int execute_stackleak_final(void)
87493 +{
87494 + rtx insn;
87495 +
87496 + if (cfun->calls_alloca)
87497 + return 0;
87498 +
87499 + // keep calls only if function frame is big enough
87500 + if (get_frame_size() >= track_frame_size)
87501 + return 0;
87502 +
87503 + // 1. find pax_track_stack calls
87504 + for (insn = get_insns(); insn; insn = NEXT_INSN(insn)) {
87505 + // 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))
87506 + rtx body;
87507 +
87508 + if (!CALL_P(insn))
87509 + continue;
87510 + body = PATTERN(insn);
87511 + if (GET_CODE(body) != CALL)
87512 + continue;
87513 + body = XEXP(body, 0);
87514 + if (GET_CODE(body) != MEM)
87515 + continue;
87516 + body = XEXP(body, 0);
87517 + if (GET_CODE(body) != SYMBOL_REF)
87518 + continue;
87519 + if (strcmp(XSTR(body, 0), track_function))
87520 + continue;
87521 +// warning(0, "track_frame_size: %d %ld %d", cfun->calls_alloca, get_frame_size(), track_frame_size);
87522 + // 2. delete call
87523 + insn = delete_insn_and_edges(insn);
87524 +#if BUILDING_GCC_VERSION >= 4007
87525 + if (GET_CODE(insn) == NOTE && NOTE_KIND(insn) == NOTE_INSN_CALL_ARG_LOCATION)
87526 + insn = delete_insn_and_edges(insn);
87527 +#endif
87528 + }
87529 +
87530 +// print_simple_rtl(stderr, get_insns());
87531 +// print_rtl(stderr, get_insns());
87532 +// warning(0, "track_frame_size: %d %ld %d", cfun->calls_alloca, get_frame_size(), track_frame_size);
87533 +
87534 + return 0;
87535 +}
87536 +
87537 +int plugin_init(struct plugin_name_args *plugin_info, struct plugin_gcc_version *version)
87538 +{
87539 + const char * const plugin_name = plugin_info->base_name;
87540 + const int argc = plugin_info->argc;
87541 + const struct plugin_argument * const argv = plugin_info->argv;
87542 + int i;
87543 + struct register_pass_info stackleak_tree_instrument_pass_info = {
87544 + .pass = &stackleak_tree_instrument_pass.pass,
87545 +// .reference_pass_name = "tree_profile",
87546 + .reference_pass_name = "optimized",
87547 + .ref_pass_instance_number = 1,
87548 + .pos_op = PASS_POS_INSERT_BEFORE
87549 + };
87550 + struct register_pass_info stackleak_final_pass_info = {
87551 + .pass = &stackleak_final_rtl_opt_pass.pass,
87552 + .reference_pass_name = "final",
87553 + .ref_pass_instance_number = 1,
87554 + .pos_op = PASS_POS_INSERT_BEFORE
87555 + };
87556 +
87557 + if (!plugin_default_version_check(version, &gcc_version)) {
87558 + error(G_("incompatible gcc/plugin versions"));
87559 + return 1;
87560 + }
87561 +
87562 + register_callback(plugin_name, PLUGIN_INFO, NULL, &stackleak_plugin_info);
87563 +
87564 + for (i = 0; i < argc; ++i) {
87565 + if (!strcmp(argv[i].key, "track-lowest-sp")) {
87566 + if (!argv[i].value) {
87567 + error(G_("no value supplied for option '-fplugin-arg-%s-%s'"), plugin_name, argv[i].key);
87568 + continue;
87569 + }
87570 + track_frame_size = atoi(argv[i].value);
87571 + if (argv[i].value[0] < '0' || argv[i].value[0] > '9' || track_frame_size < 0)
87572 + error(G_("invalid option argument '-fplugin-arg-%s-%s=%s'"), plugin_name, argv[i].key, argv[i].value);
87573 + continue;
87574 + }
87575 + if (!strcmp(argv[i].key, "initialize-locals")) {
87576 + if (argv[i].value) {
87577 + error(G_("invalid option argument '-fplugin-arg-%s-%s=%s'"), plugin_name, argv[i].key, argv[i].value);
87578 + continue;
87579 + }
87580 + init_locals = true;
87581 + continue;
87582 + }
87583 + error(G_("unkown option '-fplugin-arg-%s-%s'"), plugin_name, argv[i].key);
87584 + }
87585 +
87586 + register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &stackleak_tree_instrument_pass_info);
87587 + register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &stackleak_final_pass_info);
87588 +
87589 + return 0;
87590 +}
87591 diff --git a/tools/perf/util/include/asm/alternative-asm.h b/tools/perf/util/include/asm/alternative-asm.h
87592 index 6789d78..4afd019 100644
87593 --- a/tools/perf/util/include/asm/alternative-asm.h
87594 +++ b/tools/perf/util/include/asm/alternative-asm.h
87595 @@ -5,4 +5,7 @@
87596
87597 #define altinstruction_entry #
87598
87599 + .macro pax_force_retaddr rip=0, reload=0
87600 + .endm
87601 +
87602 #endif
87603 diff --git a/usr/gen_init_cpio.c b/usr/gen_init_cpio.c
87604 index af0f22f..9a7d479 100644
87605 --- a/usr/gen_init_cpio.c
87606 +++ b/usr/gen_init_cpio.c
87607 @@ -303,7 +303,7 @@ static int cpio_mkfile(const char *name, const char *location,
87608 int retval;
87609 int rc = -1;
87610 int namesize;
87611 - int i;
87612 + unsigned int i;
87613
87614 mode |= S_IFREG;
87615
87616 @@ -392,9 +392,10 @@ static char *cpio_replace_env(char *new_location)
87617 *env_var = *expanded = '\0';
87618 strncat(env_var, start + 2, end - start - 2);
87619 strncat(expanded, new_location, start - new_location);
87620 - strncat(expanded, getenv(env_var), PATH_MAX);
87621 - strncat(expanded, end + 1, PATH_MAX);
87622 + strncat(expanded, getenv(env_var), PATH_MAX - strlen(expanded));
87623 + strncat(expanded, end + 1, PATH_MAX - strlen(expanded));
87624 strncpy(new_location, expanded, PATH_MAX);
87625 + new_location[PATH_MAX] = 0;
87626 } else
87627 break;
87628 }
87629 diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
87630 index 44ee712..7da730b 100644
87631 --- a/virt/kvm/kvm_main.c
87632 +++ b/virt/kvm/kvm_main.c
87633 @@ -75,7 +75,7 @@ LIST_HEAD(vm_list);
87634
87635 static cpumask_var_t cpus_hardware_enabled;
87636 static int kvm_usage_count = 0;
87637 -static atomic_t hardware_enable_failed;
87638 +static atomic_unchecked_t hardware_enable_failed;
87639
87640 struct kmem_cache *kvm_vcpu_cache;
87641 EXPORT_SYMBOL_GPL(kvm_vcpu_cache);
87642 @@ -2291,7 +2291,7 @@ static void hardware_enable_nolock(void *junk)
87643
87644 if (r) {
87645 cpumask_clear_cpu(cpu, cpus_hardware_enabled);
87646 - atomic_inc(&hardware_enable_failed);
87647 + atomic_inc_unchecked(&hardware_enable_failed);
87648 printk(KERN_INFO "kvm: enabling virtualization on "
87649 "CPU%d failed\n", cpu);
87650 }
87651 @@ -2345,10 +2345,10 @@ static int hardware_enable_all(void)
87652
87653 kvm_usage_count++;
87654 if (kvm_usage_count == 1) {
87655 - atomic_set(&hardware_enable_failed, 0);
87656 + atomic_set_unchecked(&hardware_enable_failed, 0);
87657 on_each_cpu(hardware_enable_nolock, NULL, 1);
87658
87659 - if (atomic_read(&hardware_enable_failed)) {
87660 + if (atomic_read_unchecked(&hardware_enable_failed)) {
87661 hardware_disable_all_nolock();
87662 r = -EBUSY;
87663 }
87664 @@ -2709,7 +2709,7 @@ static void kvm_sched_out(struct preempt_notifier *pn,
87665 kvm_arch_vcpu_put(vcpu);
87666 }
87667
87668 -int kvm_init(void *opaque, unsigned vcpu_size, unsigned vcpu_align,
87669 +int kvm_init(const void *opaque, unsigned vcpu_size, unsigned vcpu_align,
87670 struct module *module)
87671 {
87672 int r;
87673 @@ -2772,7 +2772,7 @@ int kvm_init(void *opaque, unsigned vcpu_size, unsigned vcpu_align,
87674 if (!vcpu_align)
87675 vcpu_align = __alignof__(struct kvm_vcpu);
87676 kvm_vcpu_cache = kmem_cache_create("kvm_vcpu", vcpu_size, vcpu_align,
87677 - 0, NULL);
87678 + SLAB_USERCOPY, NULL);
87679 if (!kvm_vcpu_cache) {
87680 r = -ENOMEM;
87681 goto out_free_3;
87682 @@ -2782,9 +2782,11 @@ int kvm_init(void *opaque, unsigned vcpu_size, unsigned vcpu_align,
87683 if (r)
87684 goto out_free;
87685
87686 - kvm_chardev_ops.owner = module;
87687 - kvm_vm_fops.owner = module;
87688 - kvm_vcpu_fops.owner = module;
87689 + pax_open_kernel();
87690 + *(void **)&kvm_chardev_ops.owner = module;
87691 + *(void **)&kvm_vm_fops.owner = module;
87692 + *(void **)&kvm_vcpu_fops.owner = module;
87693 + pax_close_kernel();
87694
87695 r = misc_register(&kvm_dev);
87696 if (r) {
Unofficial grsecurity patch archive (https://github.com/slashbeast/grsecurity-scrape)