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[thirdparty/grsecurity-scrape.git] / test / grsecurity-3.1-4.0.7-201506300712.patch
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73bce251
PK		 1diff --git a/Documentation/dontdiff b/Documentation/dontdiff
2index 9de9813..1462492 100644
3--- a/Documentation/dontdiff
4+++ b/Documentation/dontdiff
5@@ -3,9 +3,11 @@
6 *.bc
7 *.bin
8 *.bz2
9+*.c.[012]*.*
10 *.cis
11 *.cpio
12 *.csp
13+*.dbg
14 *.dsp
15 *.dvi
16 *.elf
17@@ -15,6 +17,7 @@
18 *.gcov
19 *.gen.S
20 *.gif
21+*.gmo
22 *.grep
23 *.grp
24 *.gz
25@@ -51,14 +54,17 @@
26 *.tab.h
27 *.tex
28 *.ver
29+*.vim
30 *.xml
31 *.xz
32 *_MODULES
33+*_reg_safe.h
34 *_vga16.c
35 *~
36 \#*#
37 *.9
38-.*
39+.[^g]*
40+.gen*
41 .*.d
42 .mm
43 53c700_d.h
44@@ -72,9 +78,11 @@ Image
45 Module.markers
46 Module.symvers
47 PENDING
48+PERF*
49 SCCS
50 System.map*
51 TAGS
52+TRACEEVENT-CFLAGS
53 aconf
54 af_names.h
55 aic7*reg.h*
56@@ -83,6 +91,7 @@ aic7*seq.h*
57 aicasm
58 aicdb.h*
59 altivec*.c
60+ashldi3.S
61 asm-offsets.h
62 asm_offsets.h
63 autoconf.h*
64@@ -95,32 +104,40 @@ bounds.h
65 bsetup
66 btfixupprep
67 build
68+builtin-policy.h
69 bvmlinux
70 bzImage*
71 capability_names.h
72 capflags.c
73 classlist.h*
74+clut_vga16.c
75+common-cmds.h
76 comp*.log
77 compile.h*
78 conf
79 config
80 config-*
81 config_data.h*
82+config.c
83 config.mak
84 config.mak.autogen
85+config.tmp
86 conmakehash
87 consolemap_deftbl.c*
88 cpustr.h
89 crc32table.h*
90 cscope.*
91 defkeymap.c
92+devicetable-offsets.h
93 devlist.h*
94 dnotify_test
95 docproc
96 dslm
97+dtc-lexer.lex.c
98 elf2ecoff
99 elfconfig.h*
100 evergreen_reg_safe.h
101+exception_policy.conf
102 fixdep
103 flask.h
104 fore200e_mkfirm
105@@ -128,12 +145,15 @@ fore200e_pca_fw.c*
106 gconf
107 gconf.glade.h
108 gen-devlist
109+gen-kdb_cmds.c
110 gen_crc32table
111 gen_init_cpio
112 generated
113 genheaders
114 genksyms
115 *_gray256.c
116+hash
117+hid-example
118 hpet_example
119 hugepage-mmap
120 hugepage-shm
121@@ -148,14 +168,14 @@ int32.c
122 int4.c
123 int8.c
124 kallsyms
125-kconfig
126+kern_constants.h
127 keywords.c
128 ksym.c*
129 ksym.h*
130 kxgettext
131 lex.c
132 lex.*.c
133-linux
134+lib1funcs.S
135 logo_*.c
136 logo_*_clut224.c
137 logo_*_mono.c
138@@ -165,14 +185,15 @@ mach-types.h
139 machtypes.h
140 map
141 map_hugetlb
142-media
143 mconf
144+mdp
145 miboot*
146 mk_elfconfig
147 mkboot
148 mkbugboot
149 mkcpustr
150 mkdep
151+mkpiggy
152 mkprep
153 mkregtable
154 mktables
155@@ -188,6 +209,8 @@ oui.c*
156 page-types
157 parse.c
158 parse.h
159+parse-events*
160+pasyms.h
161 patches*
162 pca200e.bin
163 pca200e_ecd.bin2
164@@ -197,6 +220,7 @@ perf-archive
165 piggyback
166 piggy.gzip
167 piggy.S
168+pmu-*
169 pnmtologo
170 ppc_defs.h*
171 pss_boot.h
172@@ -206,7 +230,12 @@ r200_reg_safe.h
173 r300_reg_safe.h
174 r420_reg_safe.h
175 r600_reg_safe.h
176+randomize_layout_hash.h
177+randomize_layout_seed.h
178+realmode.lds
179+realmode.relocs
180 recordmcount
181+regdb.c
182 relocs
183 rlim_names.h
184 rn50_reg_safe.h
185@@ -216,8 +245,12 @@ series
186 setup
187 setup.bin
188 setup.elf
189+signing_key*
190+size_overflow_hash.h
191 sImage
192+slabinfo
193 sm_tbl*
194+sortextable
195 split-include
196 syscalltab.h
197 tables.c
198@@ -227,6 +260,7 @@ tftpboot.img
199 timeconst.h
200 times.h*
201 trix_boot.h
202+user_constants.h
203 utsrelease.h*
204 vdso-syms.lds
205 vdso.lds
206@@ -238,13 +272,17 @@ vdso32.lds
207 vdso32.so.dbg
208 vdso64.lds
209 vdso64.so.dbg
210+vdsox32.lds
211+vdsox32-syms.lds
212 version.h*
213 vmImage
214 vmlinux
215 vmlinux-*
216 vmlinux.aout
217 vmlinux.bin.all
218+vmlinux.bin.bz2
219 vmlinux.lds
220+vmlinux.relocs
221 vmlinuz
222 voffset.h
223 vsyscall.lds
224@@ -252,9 +290,12 @@ vsyscall_32.lds
225 wanxlfw.inc
226 uImage
227 unifdef
228+utsrelease.h
229 wakeup.bin
230 wakeup.elf
231 wakeup.lds
232+x509*
233 zImage*
234 zconf.hash.c
235+zconf.lex.c
236 zoffset.h
237diff --git a/Documentation/kbuild/makefiles.txt b/Documentation/kbuild/makefiles.txt
238index 74b6c6d..eac0e77 100644
239--- a/Documentation/kbuild/makefiles.txt
240+++ b/Documentation/kbuild/makefiles.txt
241@@ -23,10 +23,11 @@ This document describes the Linux kernel Makefiles.
242 === 4 Host Program support
243 --- 4.1 Simple Host Program
244 --- 4.2 Composite Host Programs
245- --- 4.3 Using C++ for host programs
246- --- 4.4 Controlling compiler options for host programs
247- --- 4.5 When host programs are actually built
248- --- 4.6 Using hostprogs-$(CONFIG_FOO)
249+ --- 4.3 Defining shared libraries
250+ --- 4.4 Using C++ for host programs
251+ --- 4.5 Controlling compiler options for host programs
252+ --- 4.6 When host programs are actually built
253+ --- 4.7 Using hostprogs-$(CONFIG_FOO)
254
255 === 5 Kbuild clean infrastructure
256
257@@ -643,7 +644,29 @@ Both possibilities are described in the following.
258 Finally, the two .o files are linked to the executable, lxdialog.
259 Note: The syntax <executable>-y is not permitted for host-programs.
260
261---- 4.3 Using C++ for host programs
262+--- 4.3 Defining shared libraries
263+
264+ Objects with extension .so are considered shared libraries, and
265+ will be compiled as position independent objects.
266+ Kbuild provides support for shared libraries, but the usage
267+ shall be restricted.
268+ In the following example the libkconfig.so shared library is used
269+ to link the executable conf.
270+
271+ Example:
272+ #scripts/kconfig/Makefile
273+ hostprogs-y := conf
274+ conf-objs := conf.o libkconfig.so
275+ libkconfig-objs := expr.o type.o
276+
277+ Shared libraries always require a corresponding -objs line, and
278+ in the example above the shared library libkconfig is composed by
279+ the two objects expr.o and type.o.
280+ expr.o and type.o will be built as position independent code and
281+ linked as a shared library libkconfig.so. C++ is not supported for
282+ shared libraries.
283+
284+--- 4.4 Using C++ for host programs
285
286 kbuild offers support for host programs written in C++. This was
287 introduced solely to support kconfig, and is not recommended
288@@ -666,7 +689,7 @@ Both possibilities are described in the following.
289 qconf-cxxobjs := qconf.o
290 qconf-objs := check.o
291
292---- 4.4 Controlling compiler options for host programs
293+--- 4.5 Controlling compiler options for host programs
294
295 When compiling host programs, it is possible to set specific flags.
296 The programs will always be compiled utilising $(HOSTCC) passed
297@@ -694,7 +717,7 @@ Both possibilities are described in the following.
298 When linking qconf, it will be passed the extra option
299 "-L$(QTDIR)/lib".
300
301---- 4.5 When host programs are actually built
302+--- 4.6 When host programs are actually built
303
304 Kbuild will only build host-programs when they are referenced
305 as a prerequisite.
306@@ -725,7 +748,7 @@ Both possibilities are described in the following.
307 This will tell kbuild to build lxdialog even if not referenced in
308 any rule.
309
310---- 4.6 Using hostprogs-$(CONFIG_FOO)
311+--- 4.7 Using hostprogs-$(CONFIG_FOO)
312
313 A typical pattern in a Kbuild file looks like this:
314
315diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
316index 4d68ec8..9546b75 100644
317--- a/Documentation/kernel-parameters.txt
318+++ b/Documentation/kernel-parameters.txt
319@@ -1203,6 +1203,13 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
320 Format: <unsigned int> such that (rxsize & ~0x1fffc0) == 0.
321 Default: 1024
322
323+ grsec_proc_gid= [GRKERNSEC_PROC_USERGROUP] Chooses GID to
324+ ignore grsecurity's /proc restrictions
325+
326+ grsec_sysfs_restrict= Format: 0 | 1
327+ Default: 1
328+ Disables GRKERNSEC_SYSFS_RESTRICT if enabled in config
329+
330 hashdist= [KNL,NUMA] Large hashes allocated during boot
331 are distributed across NUMA nodes. Defaults on
332 for 64-bit NUMA, off otherwise.
333@@ -2300,6 +2307,10 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
334 noexec=on: enable non-executable mappings (default)
335 noexec=off: disable non-executable mappings
336
337+ nopcid [X86-64]
338+ Disable PCID (Process-Context IDentifier) even if it
339+ is supported by the processor.
340+
341 nosmap [X86]
342 Disable SMAP (Supervisor Mode Access Prevention)
343 even if it is supported by processor.
344@@ -2601,6 +2612,30 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
345 the specified number of seconds. This is to be used if
346 your oopses keep scrolling off the screen.
347
348+ pax_nouderef [X86] disables UDEREF. Most likely needed under certain
349+ virtualization environments that don't cope well with the
350+ expand down segment used by UDEREF on X86-32 or the frequent
351+ page table updates on X86-64.
352+
353+ pax_sanitize_slab=
354+ Format: { 0 | 1 | off | fast | full }
355+ Options '0' and '1' are only provided for backward
356+ compatibility, 'off' or 'fast' should be used instead.
357+ 0|off : disable slab object sanitization
358+ 1|fast: enable slab object sanitization excluding
359+ whitelisted slabs (default)
360+ full : sanitize all slabs, even the whitelisted ones
361+
362+ pax_softmode= 0/1 to disable/enable PaX softmode on boot already.
363+
364+ pax_extra_latent_entropy
365+ Enable a very simple form of latent entropy extraction
366+ from the first 4GB of memory as the bootmem allocator
367+ passes the memory pages to the buddy allocator.
368+
369+ pax_weakuderef [X86-64] enables the weaker but faster form of UDEREF
370+ when the processor supports PCID.
371+
372 pcbit= [HW,ISDN]
373
374 pcd. [PARIDE]
375diff --git a/Makefile b/Makefile
376index bd76a8e..ed02758 100644
377--- a/Makefile
378+++ b/Makefile
379@@ -298,7 +298,9 @@ CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
380 HOSTCC = gcc
381 HOSTCXX = g++
382 HOSTCFLAGS = -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 -fomit-frame-pointer -std=gnu89
383-HOSTCXXFLAGS = -O2
384+HOSTCFLAGS = -W -Wno-unused-parameter -Wno-missing-field-initializers -fno-delete-null-pointer-checks
385+HOSTCFLAGS += $(call cc-option, -Wno-empty-body)
386+HOSTCXXFLAGS = -O2 -Wall -W -Wno-array-bounds
387
388 ifeq ($(shell $(HOSTCC) -v 2>&1 | grep -c "clang version"), 1)
389 HOSTCFLAGS += -Wno-unused-value -Wno-unused-parameter \
390@@ -446,8 +448,8 @@ export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \
391 # Rules shared between *config targets and build targets
392
393 # Basic helpers built in scripts/
394-PHONY += scripts_basic
395-scripts_basic:
396+PHONY += scripts_basic gcc-plugins
397+scripts_basic: gcc-plugins
398 $(Q)$(MAKE) $(build)=scripts/basic
399 $(Q)rm -f .tmp_quiet_recordmcount
400
401@@ -622,6 +624,74 @@ endif
402 # Tell gcc to never replace conditional load with a non-conditional one
403 KBUILD_CFLAGS += $(call cc-option,--param=allow-store-data-races=0)
404
405+ifndef DISABLE_PAX_PLUGINS
406+ifeq ($(call cc-ifversion, -ge, 0408, y), y)
407+PLUGINCC := $(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-plugin.sh "$(HOSTCXX)" "$(HOSTCXX)" "$(CC)")
408+else
409+PLUGINCC := $(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-plugin.sh "$(HOSTCC)" "$(HOSTCXX)" "$(CC)")
410+endif
411+ifneq ($(PLUGINCC),)
412+ifdef CONFIG_PAX_CONSTIFY_PLUGIN
413+CONSTIFY_PLUGIN_CFLAGS := -fplugin=$(objtree)/tools/gcc/constify_plugin.so -DCONSTIFY_PLUGIN
414+endif
415+ifdef CONFIG_PAX_MEMORY_STACKLEAK
416+STACKLEAK_PLUGIN_CFLAGS := -fplugin=$(objtree)/tools/gcc/stackleak_plugin.so -DSTACKLEAK_PLUGIN
417+STACKLEAK_PLUGIN_CFLAGS += -fplugin-arg-stackleak_plugin-track-lowest-sp=100
418+endif
419+ifdef CONFIG_KALLOCSTAT_PLUGIN
420+KALLOCSTAT_PLUGIN_CFLAGS := -fplugin=$(objtree)/tools/gcc/kallocstat_plugin.so
421+endif
422+ifdef CONFIG_PAX_KERNEXEC_PLUGIN
423+KERNEXEC_PLUGIN_CFLAGS := -fplugin=$(objtree)/tools/gcc/kernexec_plugin.so
424+KERNEXEC_PLUGIN_CFLAGS += -fplugin-arg-kernexec_plugin-method=$(CONFIG_PAX_KERNEXEC_PLUGIN_METHOD) -DKERNEXEC_PLUGIN
425+KERNEXEC_PLUGIN_AFLAGS := -DKERNEXEC_PLUGIN
426+endif
427+ifdef CONFIG_GRKERNSEC_RANDSTRUCT
428+RANDSTRUCT_PLUGIN_CFLAGS := -fplugin=$(objtree)/tools/gcc/randomize_layout_plugin.so -DRANDSTRUCT_PLUGIN
429+ifdef CONFIG_GRKERNSEC_RANDSTRUCT_PERFORMANCE
430+RANDSTRUCT_PLUGIN_CFLAGS += -fplugin-arg-randomize_layout_plugin-performance-mode
431+endif
432+endif
433+ifdef CONFIG_CHECKER_PLUGIN
434+ifeq ($(call cc-ifversion, -ge, 0406, y), y)
435+CHECKER_PLUGIN_CFLAGS := -fplugin=$(objtree)/tools/gcc/checker_plugin.so -DCHECKER_PLUGIN
436+endif
437+endif
438+COLORIZE_PLUGIN_CFLAGS := -fplugin=$(objtree)/tools/gcc/colorize_plugin.so
439+ifdef CONFIG_PAX_SIZE_OVERFLOW
440+SIZE_OVERFLOW_PLUGIN_CFLAGS := -fplugin=$(objtree)/tools/gcc/size_overflow_plugin/size_overflow_plugin.so -DSIZE_OVERFLOW_PLUGIN
441+endif
442+ifdef CONFIG_PAX_LATENT_ENTROPY
443+LATENT_ENTROPY_PLUGIN_CFLAGS := -fplugin=$(objtree)/tools/gcc/latent_entropy_plugin.so -DLATENT_ENTROPY_PLUGIN
444+endif
445+ifdef CONFIG_PAX_MEMORY_STRUCTLEAK
446+STRUCTLEAK_PLUGIN_CFLAGS := -fplugin=$(objtree)/tools/gcc/structleak_plugin.so -DSTRUCTLEAK_PLUGIN
447+endif
448+INITIFY_PLUGIN_CFLAGS := -fplugin=$(objtree)/tools/gcc/initify_plugin.so -DINITIFY_PLUGIN
449+GCC_PLUGINS_CFLAGS := $(CONSTIFY_PLUGIN_CFLAGS) $(STACKLEAK_PLUGIN_CFLAGS) $(KALLOCSTAT_PLUGIN_CFLAGS)
450+GCC_PLUGINS_CFLAGS += $(KERNEXEC_PLUGIN_CFLAGS) $(CHECKER_PLUGIN_CFLAGS) $(COLORIZE_PLUGIN_CFLAGS)
451+GCC_PLUGINS_CFLAGS += $(SIZE_OVERFLOW_PLUGIN_CFLAGS) $(LATENT_ENTROPY_PLUGIN_CFLAGS) $(STRUCTLEAK_PLUGIN_CFLAGS)
452+GCC_PLUGINS_CFLAGS += $(INITIFY_PLUGIN_CFLAGS)
453+GCC_PLUGINS_CFLAGS += $(RANDSTRUCT_PLUGIN_CFLAGS)
454+GCC_PLUGINS_AFLAGS := $(KERNEXEC_PLUGIN_AFLAGS)
455+export PLUGINCC GCC_PLUGINS_CFLAGS GCC_PLUGINS_AFLAGS CONSTIFY_PLUGIN LATENT_ENTROPY_PLUGIN_CFLAGS
456+ifeq ($(KBUILD_EXTMOD),)
457+gcc-plugins:
458+ $(Q)$(MAKE) $(build)=tools/gcc
459+else
460+gcc-plugins: ;
461+endif
462+else
463+gcc-plugins:
464+ifeq ($(call cc-ifversion, -ge, 0405, y), y)
465+ $(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.))
466+else
467+ $(Q)echo "warning, your gcc version does not support plugins, you should upgrade it to gcc 4.5 at least"
468+endif
469+ $(Q)echo "PAX_MEMORY_STACKLEAK, constification, PAX_LATENT_ENTROPY and other features will be less secure. PAX_SIZE_OVERFLOW will not be active."
470+endif
471+endif
472+
473 ifdef CONFIG_READABLE_ASM
474 # Disable optimizations that make assembler listings hard to read.
475 # reorder blocks reorders the control in the function
476@@ -714,7 +784,7 @@ KBUILD_CFLAGS += $(call cc-option, -gsplit-dwarf, -g)
477 else
478 KBUILD_CFLAGS += -g
479 endif
480-KBUILD_AFLAGS += -Wa,-gdwarf-2
481+KBUILD_AFLAGS += -Wa,--gdwarf-2
482 endif
483 ifdef CONFIG_DEBUG_INFO_DWARF4
484 KBUILD_CFLAGS += $(call cc-option, -gdwarf-4,)
485@@ -884,7 +954,7 @@ export mod_sign_cmd
486
487
488 ifeq ($(KBUILD_EXTMOD),)
489-core-y += kernel/ mm/ fs/ ipc/ security/ crypto/ block/
490+core-y += kernel/ mm/ fs/ ipc/ security/ crypto/ block/ grsecurity/
491
492 vmlinux-dirs := $(patsubst %/,%,$(filter %/, $(init-y) $(init-m) \
493 $(core-y) $(core-m) $(drivers-y) $(drivers-m) \
494@@ -934,6 +1004,8 @@ endif
495
496 # The actual objects are generated when descending,
497 # make sure no implicit rule kicks in
498+$(filter-out $(init-y),$(vmlinux-deps)): KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS)
499+$(filter-out $(init-y),$(vmlinux-deps)): KBUILD_AFLAGS += $(GCC_PLUGINS_AFLAGS)
500 $(sort $(vmlinux-deps)): $(vmlinux-dirs) ;
501
502 # Handle descending into subdirectories listed in $(vmlinux-dirs)
503@@ -943,7 +1015,7 @@ $(sort $(vmlinux-deps)): $(vmlinux-dirs) ;
504 # Error messages still appears in the original language
505
506 PHONY += $(vmlinux-dirs)
507-$(vmlinux-dirs): prepare scripts
508+$(vmlinux-dirs): gcc-plugins prepare scripts
509 $(Q)$(MAKE) $(build)=$@
510
511 define filechk_kernel.release
512@@ -986,10 +1058,13 @@ prepare1: prepare2 $(version_h) include/generated/utsrelease.h \
513
514 archprepare: archheaders archscripts prepare1 scripts_basic
515
516+prepare0: KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS)
517+prepare0: KBUILD_AFLAGS += $(GCC_PLUGINS_AFLAGS)
518 prepare0: archprepare FORCE
519 $(Q)$(MAKE) $(build)=.
520
521 # All the preparing..
522+prepare: KBUILD_CFLAGS := $(filter-out $(GCC_PLUGINS_CFLAGS),$(KBUILD_CFLAGS))
523 prepare: prepare0
524
525 # Generate some files
526@@ -1103,6 +1178,8 @@ all: modules
527 # using awk while concatenating to the final file.
528
529 PHONY += modules
530+modules: KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS)
531+modules: KBUILD_AFLAGS += $(GCC_PLUGINS_AFLAGS)
532 modules: $(vmlinux-dirs) $(if $(KBUILD_BUILTIN),vmlinux) modules.builtin
533 $(Q)$(AWK) '!x[$$0]++' $(vmlinux-dirs:%=$(objtree)/%/modules.order) > $(objtree)/modules.order
534 @$(kecho) ' Building modules, stage 2.';
535@@ -1118,7 +1195,7 @@ modules.builtin: $(vmlinux-dirs:%=%/modules.builtin)
536
537 # Target to prepare building external modules
538 PHONY += modules_prepare
539-modules_prepare: prepare scripts
540+modules_prepare: gcc-plugins prepare scripts
541
542 # Target to install modules
543 PHONY += modules_install
544@@ -1184,7 +1261,10 @@ MRPROPER_FILES += .config .config.old .version .old_version \
545 Module.symvers tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \
546 signing_key.priv signing_key.x509 x509.genkey \
547 extra_certificates signing_key.x509.keyid \
548- signing_key.x509.signer vmlinux-gdb.py
549+ signing_key.x509.signer vmlinux-gdb.py \
550+ tools/gcc/size_overflow_plugin/size_overflow_hash_aux.h \
551+ tools/gcc/size_overflow_plugin/size_overflow_hash.h \
552+ tools/gcc/randomize_layout_seed.h
553
554 # clean - Delete most, but leave enough to build external modules
555 #
556@@ -1223,7 +1303,7 @@ distclean: mrproper
557 @find $(srctree) $(RCS_FIND_IGNORE) \
558 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \
559 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
560- -o -name '.*.rej' -o -name '*%' -o -name 'core' \) \
561+ -o -name '.*.rej' -o -name '*.so' -o -name '*%' -o -name 'core' \) \
562 -type f -print | xargs rm -f
563
564
565@@ -1389,6 +1469,8 @@ PHONY += $(module-dirs) modules
566 $(module-dirs): crmodverdir $(objtree)/Module.symvers
567 $(Q)$(MAKE) $(build)=$(patsubst _module_%,%,$@)
568
569+modules: KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS)
570+modules: KBUILD_AFLAGS += $(GCC_PLUGINS_AFLAGS)
571 modules: $(module-dirs)
572 @$(kecho) ' Building modules, stage 2.';
573 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
574@@ -1529,17 +1611,21 @@ else
575 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))
576 endif
577
578-%.s: %.c prepare scripts FORCE
579+%.s: KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS)
580+%.s: KBUILD_AFLAGS += $(GCC_PLUGINS_AFLAGS)
581+%.s: %.c gcc-plugins prepare scripts FORCE
582 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
583 %.i: %.c prepare scripts FORCE
584 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
585-%.o: %.c prepare scripts FORCE
586+%.o: KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS)
587+%.o: KBUILD_AFLAGS += $(GCC_PLUGINS_AFLAGS)
588+%.o: %.c gcc-plugins prepare scripts FORCE
589 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
590 %.lst: %.c prepare scripts FORCE
591 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
592-%.s: %.S prepare scripts FORCE
593+%.s: %.S gcc-plugins prepare scripts FORCE
594 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
595-%.o: %.S prepare scripts FORCE
596+%.o: %.S gcc-plugins prepare scripts FORCE
597 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
598 %.symtypes: %.c prepare scripts FORCE
599 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
600@@ -1551,11 +1637,15 @@ endif
601 $(build)=$(build-dir)
602 # Make sure the latest headers are built for Documentation
603 Documentation/: headers_install
604-%/: prepare scripts FORCE
605+%/: KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS)
606+%/: KBUILD_AFLAGS += $(GCC_PLUGINS_AFLAGS)
607+%/: gcc-plugins prepare scripts FORCE
608 $(cmd_crmodverdir)
609 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
610 $(build)=$(build-dir)
611-%.ko: prepare scripts FORCE
612+%.ko: KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS)
613+%.ko: KBUILD_AFLAGS += $(GCC_PLUGINS_AFLAGS)
614+%.ko: gcc-plugins prepare scripts FORCE
615 $(cmd_crmodverdir)
616 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
617 $(build)=$(build-dir) $(@:.ko=.o)
618diff --git a/arch/alpha/include/asm/atomic.h b/arch/alpha/include/asm/atomic.h
619index 8f8eafb..3405f46 100644
620--- a/arch/alpha/include/asm/atomic.h
621+++ b/arch/alpha/include/asm/atomic.h
622@@ -239,4 +239,14 @@ static inline long atomic64_dec_if_positive(atomic64_t *v)
623 #define atomic_dec(v) atomic_sub(1,(v))
624 #define atomic64_dec(v) atomic64_sub(1,(v))
625
626+#define atomic64_read_unchecked(v) atomic64_read(v)
627+#define atomic64_set_unchecked(v, i) atomic64_set((v), (i))
628+#define atomic64_add_unchecked(a, v) atomic64_add((a), (v))
629+#define atomic64_add_return_unchecked(a, v) atomic64_add_return((a), (v))
630+#define atomic64_sub_unchecked(a, v) atomic64_sub((a), (v))
631+#define atomic64_inc_unchecked(v) atomic64_inc(v)
632+#define atomic64_inc_return_unchecked(v) atomic64_inc_return(v)
633+#define atomic64_dec_unchecked(v) atomic64_dec(v)
634+#define atomic64_cmpxchg_unchecked(v, o, n) atomic64_cmpxchg((v), (o), (n))
635+
636 #endif /* _ALPHA_ATOMIC_H */
637diff --git a/arch/alpha/include/asm/cache.h b/arch/alpha/include/asm/cache.h
638index ad368a9..fbe0f25 100644
639--- a/arch/alpha/include/asm/cache.h
640+++ b/arch/alpha/include/asm/cache.h
641@@ -4,19 +4,19 @@
642 #ifndef __ARCH_ALPHA_CACHE_H
643 #define __ARCH_ALPHA_CACHE_H
644
645+#include <linux/const.h>
646
647 /* Bytes per L1 (data) cache line. */
648 #if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_EV6)
649-# define L1_CACHE_BYTES 64
650 # define L1_CACHE_SHIFT 6
651 #else
652 /* Both EV4 and EV5 are write-through, read-allocate,
653 direct-mapped, physical.
654 */
655-# define L1_CACHE_BYTES 32
656 # define L1_CACHE_SHIFT 5
657 #endif
658
659+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
660 #define SMP_CACHE_BYTES L1_CACHE_BYTES
661
662 #endif
663diff --git a/arch/alpha/include/asm/elf.h b/arch/alpha/include/asm/elf.h
664index 968d999..d36b2df 100644
665--- a/arch/alpha/include/asm/elf.h
666+++ b/arch/alpha/include/asm/elf.h
667@@ -91,6 +91,13 @@ typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
668
669 #define ELF_ET_DYN_BASE (TASK_UNMAPPED_BASE + 0x1000000)
670
671+#ifdef CONFIG_PAX_ASLR
672+#define PAX_ELF_ET_DYN_BASE (current->personality & ADDR_LIMIT_32BIT ? 0x10000 : 0x120000000UL)
673+
674+#define PAX_DELTA_MMAP_LEN (current->personality & ADDR_LIMIT_32BIT ? 14 : 28)
675+#define PAX_DELTA_STACK_LEN (current->personality & ADDR_LIMIT_32BIT ? 14 : 19)
676+#endif
677+
678 /* $0 is set by ld.so to a pointer to a function which might be
679 registered using atexit. This provides a mean for the dynamic
680 linker to call DT_FINI functions for shared libraries that have
681diff --git a/arch/alpha/include/asm/pgalloc.h b/arch/alpha/include/asm/pgalloc.h
682index aab14a0..b4fa3e7 100644
683--- a/arch/alpha/include/asm/pgalloc.h
684+++ b/arch/alpha/include/asm/pgalloc.h
685@@ -29,6 +29,12 @@ pgd_populate(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmd)
686 pgd_set(pgd, pmd);
687 }
688
689+static inline void
690+pgd_populate_kernel(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmd)
691+{
692+ pgd_populate(mm, pgd, pmd);
693+}
694+
695 extern pgd_t *pgd_alloc(struct mm_struct *mm);
696
697 static inline void
698diff --git a/arch/alpha/include/asm/pgtable.h b/arch/alpha/include/asm/pgtable.h
699index a9a1195..e9b8417 100644
700--- a/arch/alpha/include/asm/pgtable.h
701+++ b/arch/alpha/include/asm/pgtable.h
702@@ -101,6 +101,17 @@ struct vm_area_struct;
703 #define PAGE_SHARED __pgprot(_PAGE_VALID | __ACCESS_BITS)
704 #define PAGE_COPY __pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOW)
705 #define PAGE_READONLY __pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOW)
706+
707+#ifdef CONFIG_PAX_PAGEEXEC
708+# define PAGE_SHARED_NOEXEC __pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOE)
709+# define PAGE_COPY_NOEXEC __pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOW | _PAGE_FOE)
710+# define PAGE_READONLY_NOEXEC __pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOW | _PAGE_FOE)
711+#else
712+# define PAGE_SHARED_NOEXEC PAGE_SHARED
713+# define PAGE_COPY_NOEXEC PAGE_COPY
714+# define PAGE_READONLY_NOEXEC PAGE_READONLY
715+#endif
716+
717 #define PAGE_KERNEL __pgprot(_PAGE_VALID | _PAGE_ASM | _PAGE_KRE | _PAGE_KWE)
718
719 #define _PAGE_NORMAL(x) __pgprot(_PAGE_VALID | __ACCESS_BITS | (x))
720diff --git a/arch/alpha/kernel/module.c b/arch/alpha/kernel/module.c
721index 2fd00b7..cfd5069 100644
722--- a/arch/alpha/kernel/module.c
723+++ b/arch/alpha/kernel/module.c
724@@ -160,7 +160,7 @@ apply_relocate_add(Elf64_Shdr *sechdrs, const char *strtab,
725
726 /* The small sections were sorted to the end of the segment.
727 The following should definitely cover them. */
728- gp = (u64)me->module_core + me->core_size - 0x8000;
729+ gp = (u64)me->module_core_rw + me->core_size_rw - 0x8000;
730 got = sechdrs[me->arch.gotsecindex].sh_addr;
731
732 for (i = 0; i < n; i++) {
733diff --git a/arch/alpha/kernel/osf_sys.c b/arch/alpha/kernel/osf_sys.c
734index e51f578..16c64a3 100644
735--- a/arch/alpha/kernel/osf_sys.c
736+++ b/arch/alpha/kernel/osf_sys.c
737@@ -1296,10 +1296,11 @@ SYSCALL_DEFINE1(old_adjtimex, struct timex32 __user *, txc_p)
738 generic version except that we know how to honor ADDR_LIMIT_32BIT. */
739
740 static unsigned long
741-arch_get_unmapped_area_1(unsigned long addr, unsigned long len,
742- unsigned long limit)
743+arch_get_unmapped_area_1(struct file *filp, unsigned long addr, unsigned long len,
744+ unsigned long limit, unsigned long flags)
745 {
746 struct vm_unmapped_area_info info;
747+ unsigned long offset = gr_rand_threadstack_offset(current->mm, filp, flags);
748
749 info.flags = 0;
750 info.length = len;
751@@ -1307,6 +1308,7 @@ arch_get_unmapped_area_1(unsigned long addr, unsigned long len,
752 info.high_limit = limit;
753 info.align_mask = 0;
754 info.align_offset = 0;
755+ info.threadstack_offset = offset;
756 return vm_unmapped_area(&info);
757 }
758
759@@ -1339,20 +1341,24 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
760 merely specific addresses, but regions of memory -- perhaps
761 this feature should be incorporated into all ports? */
762
763+#ifdef CONFIG_PAX_RANDMMAP
764+ if (!(current->mm->pax_flags & MF_PAX_RANDMMAP))
765+#endif
766+
767 if (addr) {
768- addr = arch_get_unmapped_area_1 (PAGE_ALIGN(addr), len, limit);
769+ addr = arch_get_unmapped_area_1 (filp, PAGE_ALIGN(addr), len, limit, flags);
770 if (addr != (unsigned long) -ENOMEM)
771 return addr;
772 }
773
774 /* Next, try allocating at TASK_UNMAPPED_BASE. */
775- addr = arch_get_unmapped_area_1 (PAGE_ALIGN(TASK_UNMAPPED_BASE),
776- len, limit);
777+ addr = arch_get_unmapped_area_1 (filp, PAGE_ALIGN(current->mm->mmap_base), len, limit, flags);
778+
779 if (addr != (unsigned long) -ENOMEM)
780 return addr;
781
782 /* Finally, try allocating in low memory. */
783- addr = arch_get_unmapped_area_1 (PAGE_SIZE, len, limit);
784+ addr = arch_get_unmapped_area_1 (filp, PAGE_SIZE, len, limit, flags);
785
786 return addr;
787 }
788diff --git a/arch/alpha/mm/fault.c b/arch/alpha/mm/fault.c
789index 9d0ac09..479a962 100644
790--- a/arch/alpha/mm/fault.c
791+++ b/arch/alpha/mm/fault.c
792@@ -53,6 +53,124 @@ __load_new_mm_context(struct mm_struct *next_mm)
793 __reload_thread(pcb);
794 }
795
796+#ifdef CONFIG_PAX_PAGEEXEC
797+/*
798+ * PaX: decide what to do with offenders (regs->pc = fault address)
799+ *
800+ * returns 1 when task should be killed
801+ * 2 when patched PLT trampoline was detected
802+ * 3 when unpatched PLT trampoline was detected
803+ */
804+static int pax_handle_fetch_fault(struct pt_regs *regs)
805+{
806+
807+#ifdef CONFIG_PAX_EMUPLT
808+ int err;
809+
810+ do { /* PaX: patched PLT emulation #1 */
811+ unsigned int ldah, ldq, jmp;
812+
813+ err = get_user(ldah, (unsigned int *)regs->pc);
814+ err |= get_user(ldq, (unsigned int *)(regs->pc+4));
815+ err |= get_user(jmp, (unsigned int *)(regs->pc+8));
816+
817+ if (err)
818+ break;
819+
820+ if ((ldah & 0xFFFF0000U) == 0x277B0000U &&
821+ (ldq & 0xFFFF0000U) == 0xA77B0000U &&
822+ jmp == 0x6BFB0000U)
823+ {
824+ unsigned long r27, addr;
825+ unsigned long addrh = (ldah | 0xFFFFFFFFFFFF0000UL) << 16;
826+ unsigned long addrl = ldq | 0xFFFFFFFFFFFF0000UL;
827+
828+ addr = regs->r27 + ((addrh ^ 0x80000000UL) + 0x80000000UL) + ((addrl ^ 0x8000UL) + 0x8000UL);
829+ err = get_user(r27, (unsigned long *)addr);
830+ if (err)
831+ break;
832+
833+ regs->r27 = r27;
834+ regs->pc = r27;
835+ return 2;
836+ }
837+ } while (0);
838+
839+ do { /* PaX: patched PLT emulation #2 */
840+ unsigned int ldah, lda, br;
841+
842+ err = get_user(ldah, (unsigned int *)regs->pc);
843+ err |= get_user(lda, (unsigned int *)(regs->pc+4));
844+ err |= get_user(br, (unsigned int *)(regs->pc+8));
845+
846+ if (err)
847+ break;
848+
849+ if ((ldah & 0xFFFF0000U) == 0x277B0000U &&
850+ (lda & 0xFFFF0000U) == 0xA77B0000U &&
851+ (br & 0xFFE00000U) == 0xC3E00000U)
852+ {
853+ unsigned long addr = br | 0xFFFFFFFFFFE00000UL;
854+ unsigned long addrh = (ldah | 0xFFFFFFFFFFFF0000UL) << 16;
855+ unsigned long addrl = lda | 0xFFFFFFFFFFFF0000UL;
856+
857+ regs->r27 += ((addrh ^ 0x80000000UL) + 0x80000000UL) + ((addrl ^ 0x8000UL) + 0x8000UL);
858+ regs->pc += 12 + (((addr ^ 0x00100000UL) + 0x00100000UL) << 2);
859+ return 2;
860+ }
861+ } while (0);
862+
863+ do { /* PaX: unpatched PLT emulation */
864+ unsigned int br;
865+
866+ err = get_user(br, (unsigned int *)regs->pc);
867+
868+ if (!err && (br & 0xFFE00000U) == 0xC3800000U) {
869+ unsigned int br2, ldq, nop, jmp;
870+ unsigned long addr = br | 0xFFFFFFFFFFE00000UL, resolver;
871+
872+ addr = regs->pc + 4 + (((addr ^ 0x00100000UL) + 0x00100000UL) << 2);
873+ err = get_user(br2, (unsigned int *)addr);
874+ err |= get_user(ldq, (unsigned int *)(addr+4));
875+ err |= get_user(nop, (unsigned int *)(addr+8));
876+ err |= get_user(jmp, (unsigned int *)(addr+12));
877+ err |= get_user(resolver, (unsigned long *)(addr+16));
878+
879+ if (err)
880+ break;
881+
882+ if (br2 == 0xC3600000U &&
883+ ldq == 0xA77B000CU &&
884+ nop == 0x47FF041FU &&
885+ jmp == 0x6B7B0000U)
886+ {
887+ regs->r28 = regs->pc+4;
888+ regs->r27 = addr+16;
889+ regs->pc = resolver;
890+ return 3;
891+ }
892+ }
893+ } while (0);
894+#endif
895+
896+ return 1;
897+}
898+
899+void pax_report_insns(struct pt_regs *regs, void *pc, void *sp)
900+{
901+ unsigned long i;
902+
903+ printk(KERN_ERR "PAX: bytes at PC: ");
904+ for (i = 0; i < 5; i++) {
905+ unsigned int c;
906+ if (get_user(c, (unsigned int *)pc+i))
907+ printk(KERN_CONT "???????? ");
908+ else
909+ printk(KERN_CONT "%08x ", c);
910+ }
911+ printk("\n");
912+}
913+#endif
914
915 /*
916 * This routine handles page faults. It determines the address,
917@@ -133,8 +251,29 @@ retry:
918 good_area:
919 si_code = SEGV_ACCERR;
920 if (cause < 0) {
921- if (!(vma->vm_flags & VM_EXEC))
922+ if (!(vma->vm_flags & VM_EXEC)) {
923+
924+#ifdef CONFIG_PAX_PAGEEXEC
925+ if (!(mm->pax_flags & MF_PAX_PAGEEXEC) || address != regs->pc)
926+ goto bad_area;
927+
928+ up_read(&mm->mmap_sem);
929+ switch (pax_handle_fetch_fault(regs)) {
930+
931+#ifdef CONFIG_PAX_EMUPLT
932+ case 2:
933+ case 3:
934+ return;
935+#endif
936+
937+ }
938+ pax_report_fault(regs, (void *)regs->pc, (void *)rdusp());
939+ do_group_exit(SIGKILL);
940+#else
941 goto bad_area;
942+#endif
943+
944+ }
945 } else if (!cause) {
946 /* Allow reads even for write-only mappings */
947 if (!(vma->vm_flags & (VM_READ | VM_WRITE)))
948diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
949index cf4c0c9..a87ecf5 100644
950--- a/arch/arm/Kconfig
951+++ b/arch/arm/Kconfig
952@@ -1735,7 +1735,7 @@ config ALIGNMENT_TRAP
953
954 config UACCESS_WITH_MEMCPY
955 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user()"
956- depends on MMU
957+ depends on MMU && !PAX_MEMORY_UDEREF
958 default y if CPU_FEROCEON
959 help
960 Implement faster copy_to_user and clear_user methods for CPU
961@@ -1999,6 +1999,7 @@ config XIP_PHYS_ADDR
962 config KEXEC
963 bool "Kexec system call (EXPERIMENTAL)"
964 depends on (!SMP || PM_SLEEP_SMP)
965+ depends on !GRKERNSEC_KMEM
966 help
967 kexec is a system call that implements the ability to shutdown your
968 current kernel, and to start another kernel. It is like a reboot
969diff --git a/arch/arm/include/asm/atomic.h b/arch/arm/include/asm/atomic.h
970index e22c119..abe7041 100644
971--- a/arch/arm/include/asm/atomic.h
972+++ b/arch/arm/include/asm/atomic.h
973@@ -18,17 +18,41 @@
974 #include <asm/barrier.h>
975 #include <asm/cmpxchg.h>
976
977+#ifdef CONFIG_GENERIC_ATOMIC64
978+#include <asm-generic/atomic64.h>
979+#endif
980+
981 #define ATOMIC_INIT(i) { (i) }
982
983 #ifdef __KERNEL__
984
985+#ifdef CONFIG_THUMB2_KERNEL
986+#define REFCOUNT_TRAP_INSN "bkpt 0xf1"
987+#else
988+#define REFCOUNT_TRAP_INSN "bkpt 0xf103"
989+#endif
990+
991+#define _ASM_EXTABLE(from, to) \
992+" .pushsection __ex_table,\"a\"\n"\
993+" .align 3\n" \
994+" .long " #from ", " #to"\n" \
995+" .popsection"
996+
997 /*
998 * On ARM, ordinary assignment (str instruction) doesn't clear the local
999 * strex/ldrex monitor on some implementations. The reason we can use it for
1000 * atomic_set() is the clrex or dummy strex done on every exception return.
1001 */
1002 #define atomic_read(v) ACCESS_ONCE((v)->counter)
1003+static inline int atomic_read_unchecked(const atomic_unchecked_t *v)
1004+{
1005+ return ACCESS_ONCE(v->counter);
1006+}
1007 #define atomic_set(v,i) (((v)->counter) = (i))
1008+static inline void atomic_set_unchecked(atomic_unchecked_t *v, int i)
1009+{
1010+ v->counter = i;
1011+}
1012
1013 #if __LINUX_ARM_ARCH__ >= 6
1014
1015@@ -38,26 +62,50 @@
1016 * to ensure that the update happens.
1017 */
1018
1019-#define ATOMIC_OP(op, c_op, asm_op) \
1020-static inline void atomic_##op(int i, atomic_t *v) \
1021+#ifdef CONFIG_PAX_REFCOUNT
1022+#define __OVERFLOW_POST \
1023+ " bvc 3f\n" \
1024+ "2: " REFCOUNT_TRAP_INSN "\n"\
1025+ "3:\n"
1026+#define __OVERFLOW_POST_RETURN \
1027+ " bvc 3f\n" \
1028+" mov %0, %1\n" \
1029+ "2: " REFCOUNT_TRAP_INSN "\n"\
1030+ "3:\n"
1031+#define __OVERFLOW_EXTABLE \
1032+ "4:\n" \
1033+ _ASM_EXTABLE(2b, 4b)
1034+#else
1035+#define __OVERFLOW_POST
1036+#define __OVERFLOW_POST_RETURN
1037+#define __OVERFLOW_EXTABLE
1038+#endif
1039+
1040+#define __ATOMIC_OP(op, suffix, c_op, asm_op, post_op, extable) \
1041+static inline void atomic_##op##suffix(int i, atomic##suffix##_t *v) \
1042 { \
1043 unsigned long tmp; \
1044 int result; \
1045 \
1046 prefetchw(&v->counter); \
1047- __asm__ __volatile__("@ atomic_" #op "\n" \
1048+ __asm__ __volatile__("@ atomic_" #op #suffix "\n" \
1049 "1: ldrex %0, [%3]\n" \
1050 " " #asm_op " %0, %0, %4\n" \
1051+ post_op \
1052 " strex %1, %0, [%3]\n" \
1053 " teq %1, #0\n" \
1054-" bne 1b" \
1055+" bne 1b\n" \
1056+ extable \
1057 : "=&r" (result), "=&r" (tmp), "+Qo" (v->counter) \
1058 : "r" (&v->counter), "Ir" (i) \
1059 : "cc"); \
1060 } \
1061
1062-#define ATOMIC_OP_RETURN(op, c_op, asm_op) \
1063-static inline int atomic_##op##_return(int i, atomic_t *v) \
1064+#define ATOMIC_OP(op, c_op, asm_op) __ATOMIC_OP(op, _unchecked, c_op, asm_op, , )\
1065+ __ATOMIC_OP(op, , c_op, asm_op##s, __OVERFLOW_POST, __OVERFLOW_EXTABLE)
1066+
1067+#define __ATOMIC_OP_RETURN(op, suffix, c_op, asm_op, post_op, extable) \
1068+static inline int atomic_##op##_return##suffix(int i, atomic##suffix##_t *v)\
1069 { \
1070 unsigned long tmp; \
1071 int result; \
1072@@ -65,12 +113,14 @@ static inline int atomic_##op##_return(int i, atomic_t *v) \
1073 smp_mb(); \
1074 prefetchw(&v->counter); \
1075 \
1076- __asm__ __volatile__("@ atomic_" #op "_return\n" \
1077+ __asm__ __volatile__("@ atomic_" #op "_return" #suffix "\n" \
1078 "1: ldrex %0, [%3]\n" \
1079 " " #asm_op " %0, %0, %4\n" \
1080+ post_op \
1081 " strex %1, %0, [%3]\n" \
1082 " teq %1, #0\n" \
1083-" bne 1b" \
1084+" bne 1b\n" \
1085+ extable \
1086 : "=&r" (result), "=&r" (tmp), "+Qo" (v->counter) \
1087 : "r" (&v->counter), "Ir" (i) \
1088 : "cc"); \
1089@@ -80,6 +130,9 @@ static inline int atomic_##op##_return(int i, atomic_t *v) \
1090 return result; \
1091 }
1092
1093+#define ATOMIC_OP_RETURN(op, c_op, asm_op) __ATOMIC_OP_RETURN(op, _unchecked, c_op, asm_op, , )\
1094+ __ATOMIC_OP_RETURN(op, , c_op, asm_op##s, __OVERFLOW_POST_RETURN, __OVERFLOW_EXTABLE)
1095+
1096 static inline int atomic_cmpxchg(atomic_t *ptr, int old, int new)
1097 {
1098 int oldval;
1099@@ -115,12 +168,24 @@ static inline int __atomic_add_unless(atomic_t *v, int a, int u)
1100 __asm__ __volatile__ ("@ atomic_add_unless\n"
1101 "1: ldrex %0, [%4]\n"
1102 " teq %0, %5\n"
1103-" beq 2f\n"
1104-" add %1, %0, %6\n"
1105+" beq 4f\n"
1106+" adds %1, %0, %6\n"
1107+
1108+#ifdef CONFIG_PAX_REFCOUNT
1109+" bvc 3f\n"
1110+"2: " REFCOUNT_TRAP_INSN "\n"
1111+"3:\n"
1112+#endif
1113+
1114 " strex %2, %1, [%4]\n"
1115 " teq %2, #0\n"
1116 " bne 1b\n"
1117-"2:"
1118+"4:"
1119+
1120+#ifdef CONFIG_PAX_REFCOUNT
1121+ _ASM_EXTABLE(2b, 4b)
1122+#endif
1123+
1124 : "=&r" (oldval), "=&r" (newval), "=&r" (tmp), "+Qo" (v->counter)
1125 : "r" (&v->counter), "r" (u), "r" (a)
1126 : "cc");
1127@@ -131,14 +196,36 @@ static inline int __atomic_add_unless(atomic_t *v, int a, int u)
1128 return oldval;
1129 }
1130
1131+static inline int atomic_cmpxchg_unchecked(atomic_unchecked_t *ptr, int old, int new)
1132+{
1133+ unsigned long oldval, res;
1134+
1135+ smp_mb();
1136+
1137+ do {
1138+ __asm__ __volatile__("@ atomic_cmpxchg_unchecked\n"
1139+ "ldrex %1, [%3]\n"
1140+ "mov %0, #0\n"
1141+ "teq %1, %4\n"
1142+ "strexeq %0, %5, [%3]\n"
1143+ : "=&r" (res), "=&r" (oldval), "+Qo" (ptr->counter)
1144+ : "r" (&ptr->counter), "Ir" (old), "r" (new)
1145+ : "cc");
1146+ } while (res);
1147+
1148+ smp_mb();
1149+
1150+ return oldval;
1151+}
1152+
1153 #else /* ARM_ARCH_6 */
1154
1155 #ifdef CONFIG_SMP
1156 #error SMP not supported on pre-ARMv6 CPUs
1157 #endif
1158
1159-#define ATOMIC_OP(op, c_op, asm_op) \
1160-static inline void atomic_##op(int i, atomic_t *v) \
1161+#define __ATOMIC_OP(op, suffix, c_op, asm_op) \
1162+static inline void atomic_##op##suffix(int i, atomic##suffix##_t *v) \
1163 { \
1164 unsigned long flags; \
1165 \
1166@@ -147,8 +234,11 @@ static inline void atomic_##op(int i, atomic_t *v) \
1167 raw_local_irq_restore(flags); \
1168 } \
1169
1170-#define ATOMIC_OP_RETURN(op, c_op, asm_op) \
1171-static inline int atomic_##op##_return(int i, atomic_t *v) \
1172+#define ATOMIC_OP(op, c_op, asm_op) __ATOMIC_OP(op, , c_op, asm_op) \
1173+ __ATOMIC_OP(op, _unchecked, c_op, asm_op)
1174+
1175+#define __ATOMIC_OP_RETURN(op, suffix, c_op, asm_op) \
1176+static inline int atomic_##op##_return##suffix(int i, atomic##suffix##_t *v)\
1177 { \
1178 unsigned long flags; \
1179 int val; \
1180@@ -161,6 +251,9 @@ static inline int atomic_##op##_return(int i, atomic_t *v) \
1181 return val; \
1182 }
1183
1184+#define ATOMIC_OP_RETURN(op, c_op, asm_op) __ATOMIC_OP_RETURN(op, , c_op, asm_op)\
1185+ __ATOMIC_OP_RETURN(op, _unchecked, c_op, asm_op)
1186+
1187 static inline int atomic_cmpxchg(atomic_t *v, int old, int new)
1188 {
1189 int ret;
1190@@ -175,6 +268,11 @@ static inline int atomic_cmpxchg(atomic_t *v, int old, int new)
1191 return ret;
1192 }
1193
1194+static inline int atomic_cmpxchg_unchecked(atomic_unchecked_t *v, int old, int new)
1195+{
1196+ return atomic_cmpxchg((atomic_t *)v, old, new);
1197+}
1198+
1199 static inline int __atomic_add_unless(atomic_t *v, int a, int u)
1200 {
1201 int c, old;
1202@@ -196,16 +294,38 @@ ATOMIC_OPS(sub, -=, sub)
1203
1204 #undef ATOMIC_OPS
1205 #undef ATOMIC_OP_RETURN
1206+#undef __ATOMIC_OP_RETURN
1207 #undef ATOMIC_OP
1208+#undef __ATOMIC_OP
1209
1210 #define atomic_xchg(v, new) (xchg(&((v)->counter), new))
1211+static inline int atomic_xchg_unchecked(atomic_unchecked_t *v, int new)
1212+{
1213+ return xchg(&v->counter, new);
1214+}
1215
1216 #define atomic_inc(v) atomic_add(1, v)
1217+static inline void atomic_inc_unchecked(atomic_unchecked_t *v)
1218+{
1219+ atomic_add_unchecked(1, v);
1220+}
1221 #define atomic_dec(v) atomic_sub(1, v)
1222+static inline void atomic_dec_unchecked(atomic_unchecked_t *v)
1223+{
1224+ atomic_sub_unchecked(1, v);
1225+}
1226
1227 #define atomic_inc_and_test(v) (atomic_add_return(1, v) == 0)
1228+static inline int atomic_inc_and_test_unchecked(atomic_unchecked_t *v)
1229+{
1230+ return atomic_add_return_unchecked(1, v) == 0;
1231+}
1232 #define atomic_dec_and_test(v) (atomic_sub_return(1, v) == 0)
1233 #define atomic_inc_return(v) (atomic_add_return(1, v))
1234+static inline int atomic_inc_return_unchecked(atomic_unchecked_t *v)
1235+{
1236+ return atomic_add_return_unchecked(1, v);
1237+}
1238 #define atomic_dec_return(v) (atomic_sub_return(1, v))
1239 #define atomic_sub_and_test(i, v) (atomic_sub_return(i, v) == 0)
1240
1241@@ -216,6 +336,14 @@ typedef struct {
1242 long long counter;
1243 } atomic64_t;
1244
1245+#ifdef CONFIG_PAX_REFCOUNT
1246+typedef struct {
1247+ long long counter;
1248+} atomic64_unchecked_t;
1249+#else
1250+typedef atomic64_t atomic64_unchecked_t;
1251+#endif
1252+
1253 #define ATOMIC64_INIT(i) { (i) }
1254
1255 #ifdef CONFIG_ARM_LPAE
1256@@ -232,6 +360,19 @@ static inline long long atomic64_read(const atomic64_t *v)
1257 return result;
1258 }
1259
1260+static inline long long atomic64_read_unchecked(const atomic64_unchecked_t *v)
1261+{
1262+ long long result;
1263+
1264+ __asm__ __volatile__("@ atomic64_read_unchecked\n"
1265+" ldrd %0, %H0, [%1]"
1266+ : "=&r" (result)
1267+ : "r" (&v->counter), "Qo" (v->counter)
1268+ );
1269+
1270+ return result;
1271+}
1272+
1273 static inline void atomic64_set(atomic64_t *v, long long i)
1274 {
1275 __asm__ __volatile__("@ atomic64_set\n"
1276@@ -240,6 +381,15 @@ static inline void atomic64_set(atomic64_t *v, long long i)
1277 : "r" (&v->counter), "r" (i)
1278 );
1279 }
1280+
1281+static inline void atomic64_set_unchecked(atomic64_unchecked_t *v, long long i)
1282+{
1283+ __asm__ __volatile__("@ atomic64_set_unchecked\n"
1284+" strd %2, %H2, [%1]"
1285+ : "=Qo" (v->counter)
1286+ : "r" (&v->counter), "r" (i)
1287+ );
1288+}
1289 #else
1290 static inline long long atomic64_read(const atomic64_t *v)
1291 {
1292@@ -254,6 +404,19 @@ static inline long long atomic64_read(const atomic64_t *v)
1293 return result;
1294 }
1295
1296+static inline long long atomic64_read_unchecked(const atomic64_unchecked_t *v)
1297+{
1298+ long long result;
1299+
1300+ __asm__ __volatile__("@ atomic64_read_unchecked\n"
1301+" ldrexd %0, %H0, [%1]"
1302+ : "=&r" (result)
1303+ : "r" (&v->counter), "Qo" (v->counter)
1304+ );
1305+
1306+ return result;
1307+}
1308+
1309 static inline void atomic64_set(atomic64_t *v, long long i)
1310 {
1311 long long tmp;
1312@@ -268,29 +431,57 @@ static inline void atomic64_set(atomic64_t *v, long long i)
1313 : "r" (&v->counter), "r" (i)
1314 : "cc");
1315 }
1316+
1317+static inline void atomic64_set_unchecked(atomic64_unchecked_t *v, long long i)
1318+{
1319+ long long tmp;
1320+
1321+ prefetchw(&v->counter);
1322+ __asm__ __volatile__("@ atomic64_set_unchecked\n"
1323+"1: ldrexd %0, %H0, [%2]\n"
1324+" strexd %0, %3, %H3, [%2]\n"
1325+" teq %0, #0\n"
1326+" bne 1b"
1327+ : "=&r" (tmp), "=Qo" (v->counter)
1328+ : "r" (&v->counter), "r" (i)
1329+ : "cc");
1330+}
1331 #endif
1332
1333-#define ATOMIC64_OP(op, op1, op2) \
1334-static inline void atomic64_##op(long long i, atomic64_t *v) \
1335+#undef __OVERFLOW_POST_RETURN
1336+#define __OVERFLOW_POST_RETURN \
1337+ " bvc 3f\n" \
1338+" mov %0, %1\n" \
1339+" mov %H0, %H1\n" \
1340+ "2: " REFCOUNT_TRAP_INSN "\n"\
1341+ "3:\n"
1342+
1343+#define __ATOMIC64_OP(op, suffix, op1, op2, post_op, extable) \
1344+static inline void atomic64_##op##suffix(long long i, atomic64##suffix##_t *v)\
1345 { \
1346 long long result; \
1347 unsigned long tmp; \
1348 \
1349 prefetchw(&v->counter); \
1350- __asm__ __volatile__("@ atomic64_" #op "\n" \
1351+ __asm__ __volatile__("@ atomic64_" #op #suffix "\n" \
1352 "1: ldrexd %0, %H0, [%3]\n" \
1353 " " #op1 " %Q0, %Q0, %Q4\n" \
1354 " " #op2 " %R0, %R0, %R4\n" \
1355+ post_op \
1356 " strexd %1, %0, %H0, [%3]\n" \
1357 " teq %1, #0\n" \
1358-" bne 1b" \
1359+" bne 1b\n" \
1360+ extable \
1361 : "=&r" (result), "=&r" (tmp), "+Qo" (v->counter) \
1362 : "r" (&v->counter), "r" (i) \
1363 : "cc"); \
1364 } \
1365
1366-#define ATOMIC64_OP_RETURN(op, op1, op2) \
1367-static inline long long atomic64_##op##_return(long long i, atomic64_t *v) \
1368+#define ATOMIC64_OP(op, op1, op2) __ATOMIC64_OP(op, _unchecked, op1, op2, , ) \
1369+ __ATOMIC64_OP(op, , op1, op2##s, __OVERFLOW_POST, __OVERFLOW_EXTABLE)
1370+
1371+#define __ATOMIC64_OP_RETURN(op, suffix, op1, op2, post_op, extable) \
1372+static inline long long atomic64_##op##_return##suffix(long long i, atomic64##suffix##_t *v) \
1373 { \
1374 long long result; \
1375 unsigned long tmp; \
1376@@ -298,13 +489,15 @@ static inline long long atomic64_##op##_return(long long i, atomic64_t *v) \
1377 smp_mb(); \
1378 prefetchw(&v->counter); \
1379 \
1380- __asm__ __volatile__("@ atomic64_" #op "_return\n" \
1381+ __asm__ __volatile__("@ atomic64_" #op "_return" #suffix "\n" \
1382 "1: ldrexd %0, %H0, [%3]\n" \
1383 " " #op1 " %Q0, %Q0, %Q4\n" \
1384 " " #op2 " %R0, %R0, %R4\n" \
1385+ post_op \
1386 " strexd %1, %0, %H0, [%3]\n" \
1387 " teq %1, #0\n" \
1388-" bne 1b" \
1389+" bne 1b\n" \
1390+ extable \
1391 : "=&r" (result), "=&r" (tmp), "+Qo" (v->counter) \
1392 : "r" (&v->counter), "r" (i) \
1393 : "cc"); \
1394@@ -314,6 +507,9 @@ static inline long long atomic64_##op##_return(long long i, atomic64_t *v) \
1395 return result; \
1396 }
1397
1398+#define ATOMIC64_OP_RETURN(op, op1, op2) __ATOMIC64_OP_RETURN(op, _unchecked, op1, op2, , ) \
1399+ __ATOMIC64_OP_RETURN(op, , op1, op2##s, __OVERFLOW_POST_RETURN, __OVERFLOW_EXTABLE)
1400+
1401 #define ATOMIC64_OPS(op, op1, op2) \
1402 ATOMIC64_OP(op, op1, op2) \
1403 ATOMIC64_OP_RETURN(op, op1, op2)
1404@@ -323,7 +519,12 @@ ATOMIC64_OPS(sub, subs, sbc)
1405
1406 #undef ATOMIC64_OPS
1407 #undef ATOMIC64_OP_RETURN
1408+#undef __ATOMIC64_OP_RETURN
1409 #undef ATOMIC64_OP
1410+#undef __ATOMIC64_OP
1411+#undef __OVERFLOW_EXTABLE
1412+#undef __OVERFLOW_POST_RETURN
1413+#undef __OVERFLOW_POST
1414
1415 static inline long long atomic64_cmpxchg(atomic64_t *ptr, long long old,
1416 long long new)
1417@@ -351,6 +552,31 @@ static inline long long atomic64_cmpxchg(atomic64_t *ptr, long long old,
1418 return oldval;
1419 }
1420
1421+static inline long long atomic64_cmpxchg_unchecked(atomic64_unchecked_t *ptr, long long old,
1422+ long long new)
1423+{
1424+ long long oldval;
1425+ unsigned long res;
1426+
1427+ smp_mb();
1428+
1429+ do {
1430+ __asm__ __volatile__("@ atomic64_cmpxchg_unchecked\n"
1431+ "ldrexd %1, %H1, [%3]\n"
1432+ "mov %0, #0\n"
1433+ "teq %1, %4\n"
1434+ "teqeq %H1, %H4\n"
1435+ "strexdeq %0, %5, %H5, [%3]"
1436+ : "=&r" (res), "=&r" (oldval), "+Qo" (ptr->counter)
1437+ : "r" (&ptr->counter), "r" (old), "r" (new)
1438+ : "cc");
1439+ } while (res);
1440+
1441+ smp_mb();
1442+
1443+ return oldval;
1444+}
1445+
1446 static inline long long atomic64_xchg(atomic64_t *ptr, long long new)
1447 {
1448 long long result;
1449@@ -376,21 +602,35 @@ static inline long long atomic64_xchg(atomic64_t *ptr, long long new)
1450 static inline long long atomic64_dec_if_positive(atomic64_t *v)
1451 {
1452 long long result;
1453- unsigned long tmp;
1454+ u64 tmp;
1455
1456 smp_mb();
1457 prefetchw(&v->counter);
1458
1459 __asm__ __volatile__("@ atomic64_dec_if_positive\n"
1460-"1: ldrexd %0, %H0, [%3]\n"
1461-" subs %Q0, %Q0, #1\n"
1462-" sbc %R0, %R0, #0\n"
1463+"1: ldrexd %1, %H1, [%3]\n"
1464+" subs %Q0, %Q1, #1\n"
1465+" sbcs %R0, %R1, #0\n"
1466+
1467+#ifdef CONFIG_PAX_REFCOUNT
1468+" bvc 3f\n"
1469+" mov %Q0, %Q1\n"
1470+" mov %R0, %R1\n"
1471+"2: " REFCOUNT_TRAP_INSN "\n"
1472+"3:\n"
1473+#endif
1474+
1475 " teq %R0, #0\n"
1476-" bmi 2f\n"
1477+" bmi 4f\n"
1478 " strexd %1, %0, %H0, [%3]\n"
1479 " teq %1, #0\n"
1480 " bne 1b\n"
1481-"2:"
1482+"4:\n"
1483+
1484+#ifdef CONFIG_PAX_REFCOUNT
1485+ _ASM_EXTABLE(2b, 4b)
1486+#endif
1487+
1488 : "=&r" (result), "=&r" (tmp), "+Qo" (v->counter)
1489 : "r" (&v->counter)
1490 : "cc");
1491@@ -414,13 +654,25 @@ static inline int atomic64_add_unless(atomic64_t *v, long long a, long long u)
1492 " teq %0, %5\n"
1493 " teqeq %H0, %H5\n"
1494 " moveq %1, #0\n"
1495-" beq 2f\n"
1496+" beq 4f\n"
1497 " adds %Q0, %Q0, %Q6\n"
1498-" adc %R0, %R0, %R6\n"
1499+" adcs %R0, %R0, %R6\n"
1500+
1501+#ifdef CONFIG_PAX_REFCOUNT
1502+" bvc 3f\n"
1503+"2: " REFCOUNT_TRAP_INSN "\n"
1504+"3:\n"
1505+#endif
1506+
1507 " strexd %2, %0, %H0, [%4]\n"
1508 " teq %2, #0\n"
1509 " bne 1b\n"
1510-"2:"
1511+"4:\n"
1512+
1513+#ifdef CONFIG_PAX_REFCOUNT
1514+ _ASM_EXTABLE(2b, 4b)
1515+#endif
1516+
1517 : "=&r" (val), "+r" (ret), "=&r" (tmp), "+Qo" (v->counter)
1518 : "r" (&v->counter), "r" (u), "r" (a)
1519 : "cc");
1520@@ -433,10 +685,13 @@ static inline int atomic64_add_unless(atomic64_t *v, long long a, long long u)
1521
1522 #define atomic64_add_negative(a, v) (atomic64_add_return((a), (v)) < 0)
1523 #define atomic64_inc(v) atomic64_add(1LL, (v))
1524+#define atomic64_inc_unchecked(v) atomic64_add_unchecked(1LL, (v))
1525 #define atomic64_inc_return(v) atomic64_add_return(1LL, (v))
1526+#define atomic64_inc_return_unchecked(v) atomic64_add_return_unchecked(1LL, (v))
1527 #define atomic64_inc_and_test(v) (atomic64_inc_return(v) == 0)
1528 #define atomic64_sub_and_test(a, v) (atomic64_sub_return((a), (v)) == 0)
1529 #define atomic64_dec(v) atomic64_sub(1LL, (v))
1530+#define atomic64_dec_unchecked(v) atomic64_sub_unchecked(1LL, (v))
1531 #define atomic64_dec_return(v) atomic64_sub_return(1LL, (v))
1532 #define atomic64_dec_and_test(v) (atomic64_dec_return((v)) == 0)
1533 #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1LL, 0LL)
1534diff --git a/arch/arm/include/asm/barrier.h b/arch/arm/include/asm/barrier.h
1535index d2f81e6..3c4dba5 100644
1536--- a/arch/arm/include/asm/barrier.h
1537+++ b/arch/arm/include/asm/barrier.h
1538@@ -67,7 +67,7 @@
1539 do { \
1540 compiletime_assert_atomic_type(*p); \
1541 smp_mb(); \
1542- ACCESS_ONCE(*p) = (v); \
1543+ ACCESS_ONCE_RW(*p) = (v); \
1544 } while (0)
1545
1546 #define smp_load_acquire(p) \
1547diff --git a/arch/arm/include/asm/cache.h b/arch/arm/include/asm/cache.h
1548index 75fe66b..ba3dee4 100644
1549--- a/arch/arm/include/asm/cache.h
1550+++ b/arch/arm/include/asm/cache.h
1551@@ -4,8 +4,10 @@
1552 #ifndef __ASMARM_CACHE_H
1553 #define __ASMARM_CACHE_H
1554
1555+#include <linux/const.h>
1556+
1557 #define L1_CACHE_SHIFT CONFIG_ARM_L1_CACHE_SHIFT
1558-#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
1559+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
1560
1561 /*
1562 * Memory returned by kmalloc() may be used for DMA, so we must make
1563@@ -24,5 +26,6 @@
1564 #endif
1565
1566 #define __read_mostly __attribute__((__section__(".data..read_mostly")))
1567+#define __read_only __attribute__ ((__section__(".data..read_only")))
1568
1569 #endif
1570diff --git a/arch/arm/include/asm/cacheflush.h b/arch/arm/include/asm/cacheflush.h
1571index 2d46862..a35415b 100644
1572--- a/arch/arm/include/asm/cacheflush.h
1573+++ b/arch/arm/include/asm/cacheflush.h
1574@@ -116,7 +116,7 @@ struct cpu_cache_fns {
1575 void (*dma_unmap_area)(const void *, size_t, int);
1576
1577 void (*dma_flush_range)(const void *, const void *);
1578-};
1579+} __no_const;
1580
1581 /*
1582 * Select the calling method
1583diff --git a/arch/arm/include/asm/checksum.h b/arch/arm/include/asm/checksum.h
1584index 5233151..87a71fa 100644
1585--- a/arch/arm/include/asm/checksum.h
1586+++ b/arch/arm/include/asm/checksum.h
1587@@ -37,7 +37,19 @@ __wsum
1588 csum_partial_copy_nocheck(const void *src, void *dst, int len, __wsum sum);
1589
1590 __wsum
1591-csum_partial_copy_from_user(const void __user *src, void *dst, int len, __wsum sum, int *err_ptr);
1592+__csum_partial_copy_from_user(const void __user *src, void *dst, int len, __wsum sum, int *err_ptr);
1593+
1594+static inline __wsum
1595+csum_partial_copy_from_user(const void __user *src, void *dst, int len, __wsum sum, int *err_ptr)
1596+{
1597+ __wsum ret;
1598+ pax_open_userland();
1599+ ret = __csum_partial_copy_from_user(src, dst, len, sum, err_ptr);
1600+ pax_close_userland();
1601+ return ret;
1602+}
1603+
1604+
1605
1606 /*
1607 * Fold a partial checksum without adding pseudo headers
1608diff --git a/arch/arm/include/asm/cmpxchg.h b/arch/arm/include/asm/cmpxchg.h
1609index abb2c37..96db950 100644
1610--- a/arch/arm/include/asm/cmpxchg.h
1611+++ b/arch/arm/include/asm/cmpxchg.h
1612@@ -104,6 +104,8 @@ static inline unsigned long __xchg(unsigned long x, volatile void *ptr, int size
1613
1614 #define xchg(ptr,x) \
1615 ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr))))
1616+#define xchg_unchecked(ptr,x) \
1617+ ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr))))
1618
1619 #include <asm-generic/cmpxchg-local.h>
1620
1621diff --git a/arch/arm/include/asm/domain.h b/arch/arm/include/asm/domain.h
1622index 6ddbe44..b5e38b1a 100644
1623--- a/arch/arm/include/asm/domain.h
1624+++ b/arch/arm/include/asm/domain.h
1625@@ -48,18 +48,37 @@
1626 * Domain types
1627 */
1628 #define DOMAIN_NOACCESS 0
1629-#define DOMAIN_CLIENT 1
1630 #ifdef CONFIG_CPU_USE_DOMAINS
1631+#define DOMAIN_USERCLIENT 1
1632+#define DOMAIN_KERNELCLIENT 1
1633 #define DOMAIN_MANAGER 3
1634+#define DOMAIN_VECTORS DOMAIN_USER
1635 #else
1636+
1637+#ifdef CONFIG_PAX_KERNEXEC
1638 #define DOMAIN_MANAGER 1
1639+#define DOMAIN_KERNEXEC 3
1640+#else
1641+#define DOMAIN_MANAGER 1
1642+#endif
1643+
1644+#ifdef CONFIG_PAX_MEMORY_UDEREF
1645+#define DOMAIN_USERCLIENT 0
1646+#define DOMAIN_UDEREF 1
1647+#define DOMAIN_VECTORS DOMAIN_KERNEL
1648+#else
1649+#define DOMAIN_USERCLIENT 1
1650+#define DOMAIN_VECTORS DOMAIN_USER
1651+#endif
1652+#define DOMAIN_KERNELCLIENT 1
1653+
1654 #endif
1655
1656 #define domain_val(dom,type) ((type) << (2*(dom)))
1657
1658 #ifndef __ASSEMBLY__
1659
1660-#ifdef CONFIG_CPU_USE_DOMAINS
1661+#if defined(CONFIG_CPU_USE_DOMAINS) || defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
1662 static inline void set_domain(unsigned val)
1663 {
1664 asm volatile(
1665@@ -68,15 +87,7 @@ static inline void set_domain(unsigned val)
1666 isb();
1667 }
1668
1669-#define modify_domain(dom,type) \
1670- do { \
1671- struct thread_info *thread = current_thread_info(); \
1672- unsigned int domain = thread->cpu_domain; \
1673- domain &= ~domain_val(dom, DOMAIN_MANAGER); \
1674- thread->cpu_domain = domain | domain_val(dom, type); \
1675- set_domain(thread->cpu_domain); \
1676- } while (0)
1677-
1678+extern void modify_domain(unsigned int dom, unsigned int type);
1679 #else
1680 static inline void set_domain(unsigned val) { }
1681 static inline void modify_domain(unsigned dom, unsigned type) { }
1682diff --git a/arch/arm/include/asm/elf.h b/arch/arm/include/asm/elf.h
1683index 674d03f..9a0bac0 100644
1684--- a/arch/arm/include/asm/elf.h
1685+++ b/arch/arm/include/asm/elf.h
1686@@ -115,7 +115,14 @@ int dump_task_regs(struct task_struct *t, elf_gregset_t *elfregs);
1687 the loader. We need to make sure that it is out of the way of the program
1688 that it will "exec", and that there is sufficient room for the brk. */
1689
1690-#define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2)
1691+#define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2)
1692+
1693+#ifdef CONFIG_PAX_ASLR
1694+#define PAX_ELF_ET_DYN_BASE 0x00008000UL
1695+
1696+#define PAX_DELTA_MMAP_LEN ((current->personality == PER_LINUX_32BIT) ? 16 : 10)
1697+#define PAX_DELTA_STACK_LEN ((current->personality == PER_LINUX_32BIT) ? 16 : 10)
1698+#endif
1699
1700 /* When the program starts, a1 contains a pointer to a function to be
1701 registered with atexit, as per the SVR4 ABI. A value of 0 means we
1702@@ -125,10 +132,6 @@ int dump_task_regs(struct task_struct *t, elf_gregset_t *elfregs);
1703 extern void elf_set_personality(const struct elf32_hdr *);
1704 #define SET_PERSONALITY(ex) elf_set_personality(&(ex))
1705
1706-struct mm_struct;
1707-extern unsigned long arch_randomize_brk(struct mm_struct *mm);
1708-#define arch_randomize_brk arch_randomize_brk
1709-
1710 #ifdef CONFIG_MMU
1711 #define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1
1712 struct linux_binprm;
1713diff --git a/arch/arm/include/asm/fncpy.h b/arch/arm/include/asm/fncpy.h
1714index de53547..52b9a28 100644
1715--- a/arch/arm/include/asm/fncpy.h
1716+++ b/arch/arm/include/asm/fncpy.h
1717@@ -81,7 +81,9 @@
1718 BUG_ON((uintptr_t)(dest_buf) & (FNCPY_ALIGN - 1) || \
1719 (__funcp_address & ~(uintptr_t)1 & (FNCPY_ALIGN - 1))); \
1720 \
1721+ pax_open_kernel(); \
1722 memcpy(dest_buf, (void const *)(__funcp_address & ~1), size); \
1723+ pax_close_kernel(); \
1724 flush_icache_range((unsigned long)(dest_buf), \
1725 (unsigned long)(dest_buf) + (size)); \
1726 \
1727diff --git a/arch/arm/include/asm/futex.h b/arch/arm/include/asm/futex.h
1728index 53e69da..3fdc896 100644
1729--- a/arch/arm/include/asm/futex.h
1730+++ b/arch/arm/include/asm/futex.h
1731@@ -46,6 +46,8 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
1732 if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
1733 return -EFAULT;
1734
1735+ pax_open_userland();
1736+
1737 smp_mb();
1738 /* Prefetching cannot fault */
1739 prefetchw(uaddr);
1740@@ -63,6 +65,8 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
1741 : "cc", "memory");
1742 smp_mb();
1743
1744+ pax_close_userland();
1745+
1746 *uval = val;
1747 return ret;
1748 }
1749@@ -93,6 +97,8 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
1750 if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
1751 return -EFAULT;
1752
1753+ pax_open_userland();
1754+
1755 __asm__ __volatile__("@futex_atomic_cmpxchg_inatomic\n"
1756 "1: " TUSER(ldr) " %1, [%4]\n"
1757 " teq %1, %2\n"
1758@@ -103,6 +109,8 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
1759 : "r" (oldval), "r" (newval), "r" (uaddr), "Ir" (-EFAULT)
1760 : "cc", "memory");
1761
1762+ pax_close_userland();
1763+
1764 *uval = val;
1765 return ret;
1766 }
1767@@ -125,6 +133,7 @@ futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
1768 return -EFAULT;
1769
1770 pagefault_disable(); /* implies preempt_disable() */
1771+ pax_open_userland();
1772
1773 switch (op) {
1774 case FUTEX_OP_SET:
1775@@ -146,6 +155,7 @@ futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
1776 ret = -ENOSYS;
1777 }
1778
1779+ pax_close_userland();
1780 pagefault_enable(); /* subsumes preempt_enable() */
1781
1782 if (!ret) {
1783diff --git a/arch/arm/include/asm/kmap_types.h b/arch/arm/include/asm/kmap_types.h
1784index 83eb2f7..ed77159 100644
1785--- a/arch/arm/include/asm/kmap_types.h
1786+++ b/arch/arm/include/asm/kmap_types.h
1787@@ -4,6 +4,6 @@
1788 /*
1789 * This is the "bare minimum". AIO seems to require this.
1790 */
1791-#define KM_TYPE_NR 16
1792+#define KM_TYPE_NR 17
1793
1794 #endif
1795diff --git a/arch/arm/include/asm/mach/dma.h b/arch/arm/include/asm/mach/dma.h
1796index 9e614a1..3302cca 100644
1797--- a/arch/arm/include/asm/mach/dma.h
1798+++ b/arch/arm/include/asm/mach/dma.h
1799@@ -22,7 +22,7 @@ struct dma_ops {
1800 int (*residue)(unsigned int, dma_t *); /* optional */
1801 int (*setspeed)(unsigned int, dma_t *, int); /* optional */
1802 const char *type;
1803-};
1804+} __do_const;
1805
1806 struct dma_struct {
1807 void *addr; /* single DMA address */
1808diff --git a/arch/arm/include/asm/mach/map.h b/arch/arm/include/asm/mach/map.h
1809index f98c7f3..e5c626d 100644
1810--- a/arch/arm/include/asm/mach/map.h
1811+++ b/arch/arm/include/asm/mach/map.h
1812@@ -23,17 +23,19 @@ struct map_desc {
1813
1814 /* types 0-3 are defined in asm/io.h */
1815 enum {
1816- MT_UNCACHED = 4,
1817- MT_CACHECLEAN,
1818- MT_MINICLEAN,
1819+ MT_UNCACHED_RW = 4,
1820+ MT_CACHECLEAN_RO,
1821+ MT_MINICLEAN_RO,
1822 MT_LOW_VECTORS,
1823 MT_HIGH_VECTORS,
1824- MT_MEMORY_RWX,
1825+ __MT_MEMORY_RWX,
1826 MT_MEMORY_RW,
1827- MT_ROM,
1828- MT_MEMORY_RWX_NONCACHED,
1829+ MT_MEMORY_RX,
1830+ MT_ROM_RX,
1831+ MT_MEMORY_RW_NONCACHED,
1832+ MT_MEMORY_RX_NONCACHED,
1833 MT_MEMORY_RW_DTCM,
1834- MT_MEMORY_RWX_ITCM,
1835+ MT_MEMORY_RX_ITCM,
1836 MT_MEMORY_RW_SO,
1837 MT_MEMORY_DMA_READY,
1838 };
1839diff --git a/arch/arm/include/asm/outercache.h b/arch/arm/include/asm/outercache.h
1840index 563b92f..689d58e 100644
1841--- a/arch/arm/include/asm/outercache.h
1842+++ b/arch/arm/include/asm/outercache.h
1843@@ -39,7 +39,7 @@ struct outer_cache_fns {
1844 /* This is an ARM L2C thing */
1845 void (*write_sec)(unsigned long, unsigned);
1846 void (*configure)(const struct l2x0_regs *);
1847-};
1848+} __no_const;
1849
1850 extern struct outer_cache_fns outer_cache;
1851
1852diff --git a/arch/arm/include/asm/page.h b/arch/arm/include/asm/page.h
1853index 4355f0e..cd9168e 100644
1854--- a/arch/arm/include/asm/page.h
1855+++ b/arch/arm/include/asm/page.h
1856@@ -23,6 +23,7 @@
1857
1858 #else
1859
1860+#include <linux/compiler.h>
1861 #include <asm/glue.h>
1862
1863 /*
1864@@ -114,7 +115,7 @@ struct cpu_user_fns {
1865 void (*cpu_clear_user_highpage)(struct page *page, unsigned long vaddr);
1866 void (*cpu_copy_user_highpage)(struct page *to, struct page *from,
1867 unsigned long vaddr, struct vm_area_struct *vma);
1868-};
1869+} __no_const;
1870
1871 #ifdef MULTI_USER
1872 extern struct cpu_user_fns cpu_user;
1873diff --git a/arch/arm/include/asm/pgalloc.h b/arch/arm/include/asm/pgalloc.h
1874index 19cfab5..3f5c7e9 100644
1875--- a/arch/arm/include/asm/pgalloc.h
1876+++ b/arch/arm/include/asm/pgalloc.h
1877@@ -17,6 +17,7 @@
1878 #include <asm/processor.h>
1879 #include <asm/cacheflush.h>
1880 #include <asm/tlbflush.h>
1881+#include <asm/system_info.h>
1882
1883 #define check_pgt_cache() do { } while (0)
1884
1885@@ -43,6 +44,11 @@ static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
1886 set_pud(pud, __pud(__pa(pmd) | PMD_TYPE_TABLE));
1887 }
1888
1889+static inline void pud_populate_kernel(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
1890+{
1891+ pud_populate(mm, pud, pmd);
1892+}
1893+
1894 #else /* !CONFIG_ARM_LPAE */
1895
1896 /*
1897@@ -51,6 +57,7 @@ static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
1898 #define pmd_alloc_one(mm,addr) ({ BUG(); ((pmd_t *)2); })
1899 #define pmd_free(mm, pmd) do { } while (0)
1900 #define pud_populate(mm,pmd,pte) BUG()
1901+#define pud_populate_kernel(mm,pmd,pte) BUG()
1902
1903 #endif /* CONFIG_ARM_LPAE */
1904
1905@@ -128,6 +135,19 @@ static inline void pte_free(struct mm_struct *mm, pgtable_t pte)
1906 __free_page(pte);
1907 }
1908
1909+static inline void __section_update(pmd_t *pmdp, unsigned long addr, pmdval_t prot)
1910+{
1911+#ifdef CONFIG_ARM_LPAE
1912+ pmdp[0] = __pmd(pmd_val(pmdp[0]) | prot);
1913+#else
1914+ if (addr & SECTION_SIZE)
1915+ pmdp[1] = __pmd(pmd_val(pmdp[1]) | prot);
1916+ else
1917+ pmdp[0] = __pmd(pmd_val(pmdp[0]) | prot);
1918+#endif
1919+ flush_pmd_entry(pmdp);
1920+}
1921+
1922 static inline void __pmd_populate(pmd_t *pmdp, phys_addr_t pte,
1923 pmdval_t prot)
1924 {
1925diff --git a/arch/arm/include/asm/pgtable-2level-hwdef.h b/arch/arm/include/asm/pgtable-2level-hwdef.h
1926index 5e68278..1869bae 100644
1927--- a/arch/arm/include/asm/pgtable-2level-hwdef.h
1928+++ b/arch/arm/include/asm/pgtable-2level-hwdef.h
1929@@ -27,7 +27,7 @@
1930 /*
1931 * - section
1932 */
1933-#define PMD_SECT_PXN (_AT(pmdval_t, 1) << 0) /* v7 */
1934+#define PMD_SECT_PXN (_AT(pmdval_t, 1) << 0) /* v7 */
1935 #define PMD_SECT_BUFFERABLE (_AT(pmdval_t, 1) << 2)
1936 #define PMD_SECT_CACHEABLE (_AT(pmdval_t, 1) << 3)
1937 #define PMD_SECT_XN (_AT(pmdval_t, 1) << 4) /* v6 */
1938@@ -39,6 +39,7 @@
1939 #define PMD_SECT_nG (_AT(pmdval_t, 1) << 17) /* v6 */
1940 #define PMD_SECT_SUPER (_AT(pmdval_t, 1) << 18) /* v6 */
1941 #define PMD_SECT_AF (_AT(pmdval_t, 0))
1942+#define PMD_SECT_RDONLY (_AT(pmdval_t, 0))
1943
1944 #define PMD_SECT_UNCACHED (_AT(pmdval_t, 0))
1945 #define PMD_SECT_BUFFERED (PMD_SECT_BUFFERABLE)
1946@@ -68,6 +69,7 @@
1947 * - extended small page/tiny page
1948 */
1949 #define PTE_EXT_XN (_AT(pteval_t, 1) << 0) /* v6 */
1950+#define PTE_EXT_PXN (_AT(pteval_t, 1) << 2) /* v7 */
1951 #define PTE_EXT_AP_MASK (_AT(pteval_t, 3) << 4)
1952 #define PTE_EXT_AP0 (_AT(pteval_t, 1) << 4)
1953 #define PTE_EXT_AP1 (_AT(pteval_t, 2) << 4)
1954diff --git a/arch/arm/include/asm/pgtable-2level.h b/arch/arm/include/asm/pgtable-2level.h
1955index bfd662e..f6cbb02 100644
1956--- a/arch/arm/include/asm/pgtable-2level.h
1957+++ b/arch/arm/include/asm/pgtable-2level.h
1958@@ -127,6 +127,9 @@
1959 #define L_PTE_SHARED (_AT(pteval_t, 1) << 10) /* shared(v6), coherent(xsc3) */
1960 #define L_PTE_NONE (_AT(pteval_t, 1) << 11)
1961
1962+/* Two-level page tables only have PXN in the PGD, not in the PTE. */
1963+#define L_PTE_PXN (_AT(pteval_t, 0))
1964+
1965 /*
1966 * These are the memory types, defined to be compatible with
1967 * pre-ARMv6 CPUs cacheable and bufferable bits: XXCB
1968diff --git a/arch/arm/include/asm/pgtable-3level.h b/arch/arm/include/asm/pgtable-3level.h
1969index a745a2a..481350a 100644
1970--- a/arch/arm/include/asm/pgtable-3level.h
1971+++ b/arch/arm/include/asm/pgtable-3level.h
1972@@ -80,6 +80,7 @@
1973 #define L_PTE_USER (_AT(pteval_t, 1) << 6) /* AP[1] */
1974 #define L_PTE_SHARED (_AT(pteval_t, 3) << 8) /* SH[1:0], inner shareable */
1975 #define L_PTE_YOUNG (_AT(pteval_t, 1) << 10) /* AF */
1976+#define L_PTE_PXN (_AT(pteval_t, 1) << 53) /* PXN */
1977 #define L_PTE_XN (_AT(pteval_t, 1) << 54) /* XN */
1978 #define L_PTE_DIRTY (_AT(pteval_t, 1) << 55)
1979 #define L_PTE_SPECIAL (_AT(pteval_t, 1) << 56)
1980@@ -91,10 +92,12 @@
1981 #define L_PMD_SECT_SPLITTING (_AT(pmdval_t, 1) << 56)
1982 #define L_PMD_SECT_NONE (_AT(pmdval_t, 1) << 57)
1983 #define L_PMD_SECT_RDONLY (_AT(pteval_t, 1) << 58)
1984+#define PMD_SECT_RDONLY PMD_SECT_AP2
1985
1986 /*
1987 * To be used in assembly code with the upper page attributes.
1988 */
1989+#define L_PTE_PXN_HIGH (1 << (53 - 32))
1990 #define L_PTE_XN_HIGH (1 << (54 - 32))
1991 #define L_PTE_DIRTY_HIGH (1 << (55 - 32))
1992
1993diff --git a/arch/arm/include/asm/pgtable.h b/arch/arm/include/asm/pgtable.h
1994index f403541..b10df68 100644
1995--- a/arch/arm/include/asm/pgtable.h
1996+++ b/arch/arm/include/asm/pgtable.h
1997@@ -33,6 +33,9 @@
1998 #include <asm/pgtable-2level.h>
1999 #endif
2000
2001+#define ktla_ktva(addr) (addr)
2002+#define ktva_ktla(addr) (addr)
2003+
2004 /*
2005 * Just any arbitrary offset to the start of the vmalloc VM area: the
2006 * current 8MB value just means that there will be a 8MB "hole" after the
2007@@ -48,6 +51,9 @@
2008 #define LIBRARY_TEXT_START 0x0c000000
2009
2010 #ifndef __ASSEMBLY__
2011+extern pteval_t __supported_pte_mask;
2012+extern pmdval_t __supported_pmd_mask;
2013+
2014 extern void __pte_error(const char *file, int line, pte_t);
2015 extern void __pmd_error(const char *file, int line, pmd_t);
2016 extern void __pgd_error(const char *file, int line, pgd_t);
2017@@ -56,6 +62,48 @@ extern void __pgd_error(const char *file, int line, pgd_t);
2018 #define pmd_ERROR(pmd) __pmd_error(__FILE__, __LINE__, pmd)
2019 #define pgd_ERROR(pgd) __pgd_error(__FILE__, __LINE__, pgd)
2020
2021+#define __HAVE_ARCH_PAX_OPEN_KERNEL
2022+#define __HAVE_ARCH_PAX_CLOSE_KERNEL
2023+
2024+#if defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
2025+#include <asm/domain.h>
2026+#include <linux/thread_info.h>
2027+#include <linux/preempt.h>
2028+
2029+static inline int test_domain(int domain, int domaintype)
2030+{
2031+ return ((current_thread_info()->cpu_domain) & domain_val(domain, 3)) == domain_val(domain, domaintype);
2032+}
2033+#endif
2034+
2035+#ifdef CONFIG_PAX_KERNEXEC
2036+static inline unsigned long pax_open_kernel(void) {
2037+#ifdef CONFIG_ARM_LPAE
2038+ /* TODO */
2039+#else
2040+ preempt_disable();
2041+ BUG_ON(test_domain(DOMAIN_KERNEL, DOMAIN_KERNEXEC));
2042+ modify_domain(DOMAIN_KERNEL, DOMAIN_KERNEXEC);
2043+#endif
2044+ return 0;
2045+}
2046+
2047+static inline unsigned long pax_close_kernel(void) {
2048+#ifdef CONFIG_ARM_LPAE
2049+ /* TODO */
2050+#else
2051+ BUG_ON(test_domain(DOMAIN_KERNEL, DOMAIN_MANAGER));
2052+ /* DOMAIN_MANAGER = "client" under KERNEXEC */
2053+ modify_domain(DOMAIN_KERNEL, DOMAIN_MANAGER);
2054+ preempt_enable_no_resched();
2055+#endif
2056+ return 0;
2057+}
2058+#else
2059+static inline unsigned long pax_open_kernel(void) { return 0; }
2060+static inline unsigned long pax_close_kernel(void) { return 0; }
2061+#endif
2062+
2063 /*
2064 * This is the lowest virtual address we can permit any user space
2065 * mapping to be mapped at. This is particularly important for
2066@@ -75,8 +123,8 @@ extern void __pgd_error(const char *file, int line, pgd_t);
2067 /*
2068 * The pgprot_* and protection_map entries will be fixed up in runtime
2069 * to include the cachable and bufferable bits based on memory policy,
2070- * as well as any architecture dependent bits like global/ASID and SMP
2071- * shared mapping bits.
2072+ * as well as any architecture dependent bits like global/ASID, PXN,
2073+ * and SMP shared mapping bits.
2074 */
2075 #define _L_PTE_DEFAULT L_PTE_PRESENT | L_PTE_YOUNG
2076
2077@@ -307,7 +355,7 @@ static inline pte_t pte_mknexec(pte_t pte)
2078 static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
2079 {
2080 const pteval_t mask = L_PTE_XN | L_PTE_RDONLY | L_PTE_USER |
2081- L_PTE_NONE | L_PTE_VALID;
2082+ L_PTE_NONE | L_PTE_VALID | __supported_pte_mask;
2083 pte_val(pte) = (pte_val(pte) & ~mask) | (pgprot_val(newprot) & mask);
2084 return pte;
2085 }
2086diff --git a/arch/arm/include/asm/psci.h b/arch/arm/include/asm/psci.h
2087index c25ef3e..735f14b 100644
2088--- a/arch/arm/include/asm/psci.h
2089+++ b/arch/arm/include/asm/psci.h
2090@@ -32,7 +32,7 @@ struct psci_operations {
2091 int (*affinity_info)(unsigned long target_affinity,
2092 unsigned long lowest_affinity_level);
2093 int (*migrate_info_type)(void);
2094-};
2095+} __no_const;
2096
2097 extern struct psci_operations psci_ops;
2098 extern struct smp_operations psci_smp_ops;
2099diff --git a/arch/arm/include/asm/smp.h b/arch/arm/include/asm/smp.h
2100index 18f5a55..5072a40 100644
2101--- a/arch/arm/include/asm/smp.h
2102+++ b/arch/arm/include/asm/smp.h
2103@@ -107,7 +107,7 @@ struct smp_operations {
2104 int (*cpu_disable)(unsigned int cpu);
2105 #endif
2106 #endif
2107-};
2108+} __no_const;
2109
2110 struct of_cpu_method {
2111 const char *method;
2112diff --git a/arch/arm/include/asm/thread_info.h b/arch/arm/include/asm/thread_info.h
2113index 72812a1..335f4f3 100644
2114--- a/arch/arm/include/asm/thread_info.h
2115+++ b/arch/arm/include/asm/thread_info.h
2116@@ -77,9 +77,9 @@ struct thread_info {
2117 .flags = 0, \
2118 .preempt_count = INIT_PREEMPT_COUNT, \
2119 .addr_limit = KERNEL_DS, \
2120- .cpu_domain = domain_val(DOMAIN_USER, DOMAIN_MANAGER) | \
2121- domain_val(DOMAIN_KERNEL, DOMAIN_MANAGER) | \
2122- domain_val(DOMAIN_IO, DOMAIN_CLIENT), \
2123+ .cpu_domain = domain_val(DOMAIN_USER, DOMAIN_USERCLIENT) | \
2124+ domain_val(DOMAIN_KERNEL, DOMAIN_KERNELCLIENT) | \
2125+ domain_val(DOMAIN_IO, DOMAIN_KERNELCLIENT), \
2126 }
2127
2128 #define init_thread_info (init_thread_union.thread_info)
2129@@ -155,7 +155,11 @@ extern int vfp_restore_user_hwstate(struct user_vfp __user *,
2130 #define TIF_SYSCALL_AUDIT 9
2131 #define TIF_SYSCALL_TRACEPOINT 10
2132 #define TIF_SECCOMP 11 /* seccomp syscall filtering active */
2133-#define TIF_NOHZ 12 /* in adaptive nohz mode */
2134+/* within 8 bits of TIF_SYSCALL_TRACE
2135+ * to meet flexible second operand requirements
2136+ */
2137+#define TIF_GRSEC_SETXID 12
2138+#define TIF_NOHZ 13 /* in adaptive nohz mode */
2139 #define TIF_USING_IWMMXT 17
2140 #define TIF_MEMDIE 18 /* is terminating due to OOM killer */
2141 #define TIF_RESTORE_SIGMASK 20
2142@@ -169,10 +173,11 @@ extern int vfp_restore_user_hwstate(struct user_vfp __user *,
2143 #define _TIF_SYSCALL_TRACEPOINT (1 << TIF_SYSCALL_TRACEPOINT)
2144 #define _TIF_SECCOMP (1 << TIF_SECCOMP)
2145 #define _TIF_USING_IWMMXT (1 << TIF_USING_IWMMXT)
2146+#define _TIF_GRSEC_SETXID (1 << TIF_GRSEC_SETXID)
2147
2148 /* Checks for any syscall work in entry-common.S */
2149 #define _TIF_SYSCALL_WORK (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | \
2150- _TIF_SYSCALL_TRACEPOINT | _TIF_SECCOMP)
2151+ _TIF_SYSCALL_TRACEPOINT | _TIF_SECCOMP | _TIF_GRSEC_SETXID)
2152
2153 /*
2154 * Change these and you break ASM code in entry-common.S
2155diff --git a/arch/arm/include/asm/tls.h b/arch/arm/include/asm/tls.h
2156index 5f833f7..76e6644 100644
2157--- a/arch/arm/include/asm/tls.h
2158+++ b/arch/arm/include/asm/tls.h
2159@@ -3,6 +3,7 @@
2160
2161 #include <linux/compiler.h>
2162 #include <asm/thread_info.h>
2163+#include <asm/pgtable.h>
2164
2165 #ifdef __ASSEMBLY__
2166 #include <asm/asm-offsets.h>
2167@@ -89,7 +90,9 @@ static inline void set_tls(unsigned long val)
2168 * at 0xffff0fe0 must be used instead. (see
2169 * entry-armv.S for details)
2170 */
2171+ pax_open_kernel();
2172 *((unsigned int *)0xffff0ff0) = val;
2173+ pax_close_kernel();
2174 #endif
2175 }
2176
2177diff --git a/arch/arm/include/asm/uaccess.h b/arch/arm/include/asm/uaccess.h
2178index ce0786e..a80c264 100644
2179--- a/arch/arm/include/asm/uaccess.h
2180+++ b/arch/arm/include/asm/uaccess.h
2181@@ -18,6 +18,7 @@
2182 #include <asm/domain.h>
2183 #include <asm/unified.h>
2184 #include <asm/compiler.h>
2185+#include <asm/pgtable.h>
2186
2187 #ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
2188 #include <asm-generic/uaccess-unaligned.h>
2189@@ -70,11 +71,38 @@ extern int __put_user_bad(void);
2190 static inline void set_fs(mm_segment_t fs)
2191 {
2192 current_thread_info()->addr_limit = fs;
2193- modify_domain(DOMAIN_KERNEL, fs ? DOMAIN_CLIENT : DOMAIN_MANAGER);
2194+ modify_domain(DOMAIN_KERNEL, fs ? DOMAIN_KERNELCLIENT : DOMAIN_MANAGER);
2195 }
2196
2197 #define segment_eq(a, b) ((a) == (b))
2198
2199+#define __HAVE_ARCH_PAX_OPEN_USERLAND
2200+#define __HAVE_ARCH_PAX_CLOSE_USERLAND
2201+
2202+static inline void pax_open_userland(void)
2203+{
2204+
2205+#ifdef CONFIG_PAX_MEMORY_UDEREF
2206+ if (segment_eq(get_fs(), USER_DS)) {
2207+ BUG_ON(test_domain(DOMAIN_USER, DOMAIN_UDEREF));
2208+ modify_domain(DOMAIN_USER, DOMAIN_UDEREF);
2209+ }
2210+#endif
2211+
2212+}
2213+
2214+static inline void pax_close_userland(void)
2215+{
2216+
2217+#ifdef CONFIG_PAX_MEMORY_UDEREF
2218+ if (segment_eq(get_fs(), USER_DS)) {
2219+ BUG_ON(test_domain(DOMAIN_USER, DOMAIN_NOACCESS));
2220+ modify_domain(DOMAIN_USER, DOMAIN_NOACCESS);
2221+ }
2222+#endif
2223+
2224+}
2225+
2226 #define __addr_ok(addr) ({ \
2227 unsigned long flag; \
2228 __asm__("cmp %2, %0; movlo %0, #0" \
2229@@ -198,8 +226,12 @@ extern int __get_user_64t_4(void *);
2230
2231 #define get_user(x, p) \
2232 ({ \
2233+ int __e; \
2234 might_fault(); \
2235- __get_user_check(x, p); \
2236+ pax_open_userland(); \
2237+ __e = __get_user_check((x), (p)); \
2238+ pax_close_userland(); \
2239+ __e; \
2240 })
2241
2242 extern int __put_user_1(void *, unsigned int);
2243@@ -244,8 +276,12 @@ extern int __put_user_8(void *, unsigned long long);
2244
2245 #define put_user(x, p) \
2246 ({ \
2247+ int __e; \
2248 might_fault(); \
2249- __put_user_check(x, p); \
2250+ pax_open_userland(); \
2251+ __e = __put_user_check((x), (p)); \
2252+ pax_close_userland(); \
2253+ __e; \
2254 })
2255
2256 #else /* CONFIG_MMU */
2257@@ -269,6 +305,7 @@ static inline void set_fs(mm_segment_t fs)
2258
2259 #endif /* CONFIG_MMU */
2260
2261+#define access_ok_noprefault(type, addr, size) access_ok((type), (addr), (size))
2262 #define access_ok(type, addr, size) (__range_ok(addr, size) == 0)
2263
2264 #define user_addr_max() \
2265@@ -286,13 +323,17 @@ static inline void set_fs(mm_segment_t fs)
2266 #define __get_user(x, ptr) \
2267 ({ \
2268 long __gu_err = 0; \
2269+ pax_open_userland(); \
2270 __get_user_err((x), (ptr), __gu_err); \
2271+ pax_close_userland(); \
2272 __gu_err; \
2273 })
2274
2275 #define __get_user_error(x, ptr, err) \
2276 ({ \
2277+ pax_open_userland(); \
2278 __get_user_err((x), (ptr), err); \
2279+ pax_close_userland(); \
2280 (void) 0; \
2281 })
2282
2283@@ -368,13 +409,17 @@ do { \
2284 #define __put_user(x, ptr) \
2285 ({ \
2286 long __pu_err = 0; \
2287+ pax_open_userland(); \
2288 __put_user_err((x), (ptr), __pu_err); \
2289+ pax_close_userland(); \
2290 __pu_err; \
2291 })
2292
2293 #define __put_user_error(x, ptr, err) \
2294 ({ \
2295+ pax_open_userland(); \
2296 __put_user_err((x), (ptr), err); \
2297+ pax_close_userland(); \
2298 (void) 0; \
2299 })
2300
2301@@ -474,11 +519,44 @@ do { \
2302
2303
2304 #ifdef CONFIG_MMU
2305-extern unsigned long __must_check __copy_from_user(void *to, const void __user *from, unsigned long n);
2306-extern unsigned long __must_check __copy_to_user(void __user *to, const void *from, unsigned long n);
2307+extern unsigned long __must_check ___copy_from_user(void *to, const void __user *from, unsigned long n);
2308+extern unsigned long __must_check ___copy_to_user(void __user *to, const void *from, unsigned long n);
2309+
2310+static inline unsigned long __must_check __copy_from_user(void *to, const void __user *from, unsigned long n)
2311+{
2312+ unsigned long ret;
2313+
2314+ check_object_size(to, n, false);
2315+ pax_open_userland();
2316+ ret = ___copy_from_user(to, from, n);
2317+ pax_close_userland();
2318+ return ret;
2319+}
2320+
2321+static inline unsigned long __must_check __copy_to_user(void __user *to, const void *from, unsigned long n)
2322+{
2323+ unsigned long ret;
2324+
2325+ check_object_size(from, n, true);
2326+ pax_open_userland();
2327+ ret = ___copy_to_user(to, from, n);
2328+ pax_close_userland();
2329+ return ret;
2330+}
2331+
2332 extern unsigned long __must_check __copy_to_user_std(void __user *to, const void *from, unsigned long n);
2333-extern unsigned long __must_check __clear_user(void __user *addr, unsigned long n);
2334+extern unsigned long __must_check ___clear_user(void __user *addr, unsigned long n);
2335 extern unsigned long __must_check __clear_user_std(void __user *addr, unsigned long n);
2336+
2337+static inline unsigned long __must_check __clear_user(void __user *addr, unsigned long n)
2338+{
2339+ unsigned long ret;
2340+ pax_open_userland();
2341+ ret = ___clear_user(addr, n);
2342+ pax_close_userland();
2343+ return ret;
2344+}
2345+
2346 #else
2347 #define __copy_from_user(to, from, n) (memcpy(to, (void __force *)from, n), 0)
2348 #define __copy_to_user(to, from, n) (memcpy((void __force *)to, from, n), 0)
2349@@ -487,6 +565,9 @@ extern unsigned long __must_check __clear_user_std(void __user *addr, unsigned l
2350
2351 static inline unsigned long __must_check copy_from_user(void *to, const void __user *from, unsigned long n)
2352 {
2353+ if ((long)n < 0)
2354+ return n;
2355+
2356 if (access_ok(VERIFY_READ, from, n))
2357 n = __copy_from_user(to, from, n);
2358 else /* security hole - plug it */
2359@@ -496,6 +577,9 @@ static inline unsigned long __must_check copy_from_user(void *to, const void __u
2360
2361 static inline unsigned long __must_check copy_to_user(void __user *to, const void *from, unsigned long n)
2362 {
2363+ if ((long)n < 0)
2364+ return n;
2365+
2366 if (access_ok(VERIFY_WRITE, to, n))
2367 n = __copy_to_user(to, from, n);
2368 return n;
2369diff --git a/arch/arm/include/uapi/asm/ptrace.h b/arch/arm/include/uapi/asm/ptrace.h
2370index 5af0ed1..cea83883 100644
2371--- a/arch/arm/include/uapi/asm/ptrace.h
2372+++ b/arch/arm/include/uapi/asm/ptrace.h
2373@@ -92,7 +92,7 @@
2374 * ARMv7 groups of PSR bits
2375 */
2376 #define APSR_MASK 0xf80f0000 /* N, Z, C, V, Q and GE flags */
2377-#define PSR_ISET_MASK 0x01000010 /* ISA state (J, T) mask */
2378+#define PSR_ISET_MASK 0x01000020 /* ISA state (J, T) mask */
2379 #define PSR_IT_MASK 0x0600fc00 /* If-Then execution state mask */
2380 #define PSR_ENDIAN_MASK 0x00000200 /* Endianness state mask */
2381
2382diff --git a/arch/arm/kernel/armksyms.c b/arch/arm/kernel/armksyms.c
2383index a88671c..1cc895e 100644
2384--- a/arch/arm/kernel/armksyms.c
2385+++ b/arch/arm/kernel/armksyms.c
2386@@ -55,7 +55,7 @@ EXPORT_SYMBOL(arm_delay_ops);
2387
2388 /* networking */
2389 EXPORT_SYMBOL(csum_partial);
2390-EXPORT_SYMBOL(csum_partial_copy_from_user);
2391+EXPORT_SYMBOL(__csum_partial_copy_from_user);
2392 EXPORT_SYMBOL(csum_partial_copy_nocheck);
2393 EXPORT_SYMBOL(__csum_ipv6_magic);
2394
2395@@ -91,9 +91,9 @@ EXPORT_SYMBOL(__memzero);
2396 #ifdef CONFIG_MMU
2397 EXPORT_SYMBOL(copy_page);
2398
2399-EXPORT_SYMBOL(__copy_from_user);
2400-EXPORT_SYMBOL(__copy_to_user);
2401-EXPORT_SYMBOL(__clear_user);
2402+EXPORT_SYMBOL(___copy_from_user);
2403+EXPORT_SYMBOL(___copy_to_user);
2404+EXPORT_SYMBOL(___clear_user);
2405
2406 EXPORT_SYMBOL(__get_user_1);
2407 EXPORT_SYMBOL(__get_user_2);
2408diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S
2409index 672b219..4aa120a 100644
2410--- a/arch/arm/kernel/entry-armv.S
2411+++ b/arch/arm/kernel/entry-armv.S
2412@@ -48,6 +48,87 @@
2413 9997:
2414 .endm
2415
2416+ .macro pax_enter_kernel
2417+#if defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
2418+ @ make aligned space for saved DACR
2419+ sub sp, sp, #8
2420+ @ save regs
2421+ stmdb sp!, {r1, r2}
2422+ @ read DACR from cpu_domain into r1
2423+ mov r2, sp
2424+ @ assume 8K pages, since we have to split the immediate in two
2425+ bic r2, r2, #(0x1fc0)
2426+ bic r2, r2, #(0x3f)
2427+ ldr r1, [r2, #TI_CPU_DOMAIN]
2428+ @ store old DACR on stack
2429+ str r1, [sp, #8]
2430+#ifdef CONFIG_PAX_KERNEXEC
2431+ @ set type of DOMAIN_KERNEL to DOMAIN_KERNELCLIENT
2432+ bic r1, r1, #(domain_val(DOMAIN_KERNEL, 3))
2433+ orr r1, r1, #(domain_val(DOMAIN_KERNEL, DOMAIN_KERNELCLIENT))
2434+#endif
2435+#ifdef CONFIG_PAX_MEMORY_UDEREF
2436+ @ set current DOMAIN_USER to DOMAIN_NOACCESS
2437+ bic r1, r1, #(domain_val(DOMAIN_USER, 3))
2438+#endif
2439+ @ write r1 to current_thread_info()->cpu_domain
2440+ str r1, [r2, #TI_CPU_DOMAIN]
2441+ @ write r1 to DACR
2442+ mcr p15, 0, r1, c3, c0, 0
2443+ @ instruction sync
2444+ instr_sync
2445+ @ restore regs
2446+ ldmia sp!, {r1, r2}
2447+#endif
2448+ .endm
2449+
2450+ .macro pax_open_userland
2451+#ifdef CONFIG_PAX_MEMORY_UDEREF
2452+ @ save regs
2453+ stmdb sp!, {r0, r1}
2454+ @ read DACR from cpu_domain into r1
2455+ mov r0, sp
2456+ @ assume 8K pages, since we have to split the immediate in two
2457+ bic r0, r0, #(0x1fc0)
2458+ bic r0, r0, #(0x3f)
2459+ ldr r1, [r0, #TI_CPU_DOMAIN]
2460+ @ set current DOMAIN_USER to DOMAIN_CLIENT
2461+ bic r1, r1, #(domain_val(DOMAIN_USER, 3))
2462+ orr r1, r1, #(domain_val(DOMAIN_USER, DOMAIN_UDEREF))
2463+ @ write r1 to current_thread_info()->cpu_domain
2464+ str r1, [r0, #TI_CPU_DOMAIN]
2465+ @ write r1 to DACR
2466+ mcr p15, 0, r1, c3, c0, 0
2467+ @ instruction sync
2468+ instr_sync
2469+ @ restore regs
2470+ ldmia sp!, {r0, r1}
2471+#endif
2472+ .endm
2473+
2474+ .macro pax_close_userland
2475+#ifdef CONFIG_PAX_MEMORY_UDEREF
2476+ @ save regs
2477+ stmdb sp!, {r0, r1}
2478+ @ read DACR from cpu_domain into r1
2479+ mov r0, sp
2480+ @ assume 8K pages, since we have to split the immediate in two
2481+ bic r0, r0, #(0x1fc0)
2482+ bic r0, r0, #(0x3f)
2483+ ldr r1, [r0, #TI_CPU_DOMAIN]
2484+ @ set current DOMAIN_USER to DOMAIN_NOACCESS
2485+ bic r1, r1, #(domain_val(DOMAIN_USER, 3))
2486+ @ write r1 to current_thread_info()->cpu_domain
2487+ str r1, [r0, #TI_CPU_DOMAIN]
2488+ @ write r1 to DACR
2489+ mcr p15, 0, r1, c3, c0, 0
2490+ @ instruction sync
2491+ instr_sync
2492+ @ restore regs
2493+ ldmia sp!, {r0, r1}
2494+#endif
2495+ .endm
2496+
2497 .macro pabt_helper
2498 @ PABORT handler takes pt_regs in r2, fault address in r4 and psr in r5
2499 #ifdef MULTI_PABORT
2500@@ -90,11 +171,15 @@
2501 * Invalid mode handlers
2502 */
2503 .macro inv_entry, reason
2504+
2505+ pax_enter_kernel
2506+
2507 sub sp, sp, #S_FRAME_SIZE
2508 ARM( stmib sp, {r1 - lr} )
2509 THUMB( stmia sp, {r0 - r12} )
2510 THUMB( str sp, [sp, #S_SP] )
2511 THUMB( str lr, [sp, #S_LR] )
2512+
2513 mov r1, #\reason
2514 .endm
2515
2516@@ -150,7 +235,11 @@ ENDPROC(__und_invalid)
2517 .macro svc_entry, stack_hole=0, trace=1
2518 UNWIND(.fnstart )
2519 UNWIND(.save {r0 - pc} )
2520+
2521+ pax_enter_kernel
2522+
2523 sub sp, sp, #(S_FRAME_SIZE + \stack_hole - 4)
2524+
2525 #ifdef CONFIG_THUMB2_KERNEL
2526 SPFIX( str r0, [sp] ) @ temporarily saved
2527 SPFIX( mov r0, sp )
2528@@ -165,7 +254,12 @@ ENDPROC(__und_invalid)
2529 ldmia r0, {r3 - r5}
2530 add r7, sp, #S_SP - 4 @ here for interlock avoidance
2531 mov r6, #-1 @ "" "" "" ""
2532+#if defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
2533+ @ offset sp by 8 as done in pax_enter_kernel
2534+ add r2, sp, #(S_FRAME_SIZE + \stack_hole + 4)
2535+#else
2536 add r2, sp, #(S_FRAME_SIZE + \stack_hole - 4)
2537+#endif
2538 SPFIX( addeq r2, r2, #4 )
2539 str r3, [sp, #-4]! @ save the "real" r0 copied
2540 @ from the exception stack
2541@@ -369,6 +463,9 @@ ENDPROC(__fiq_abt)
2542 .macro usr_entry, trace=1
2543 UNWIND(.fnstart )
2544 UNWIND(.cantunwind ) @ don't unwind the user space
2545+
2546+ pax_enter_kernel_user
2547+
2548 sub sp, sp, #S_FRAME_SIZE
2549 ARM( stmib sp, {r1 - r12} )
2550 THUMB( stmia sp, {r0 - r12} )
2551@@ -479,7 +576,9 @@ __und_usr:
2552 tst r3, #PSR_T_BIT @ Thumb mode?
2553 bne __und_usr_thumb
2554 sub r4, r2, #4 @ ARM instr at LR - 4
2555+ pax_open_userland
2556 1: ldrt r0, [r4]
2557+ pax_close_userland
2558 ARM_BE8(rev r0, r0) @ little endian instruction
2559
2560 @ r0 = 32-bit ARM instruction which caused the exception
2561@@ -513,11 +612,15 @@ __und_usr_thumb:
2562 */
2563 .arch armv6t2
2564 #endif
2565+ pax_open_userland
2566 2: ldrht r5, [r4]
2567+ pax_close_userland
2568 ARM_BE8(rev16 r5, r5) @ little endian instruction
2569 cmp r5, #0xe800 @ 32bit instruction if xx != 0
2570 blo __und_usr_fault_16 @ 16bit undefined instruction
2571+ pax_open_userland
2572 3: ldrht r0, [r2]
2573+ pax_close_userland
2574 ARM_BE8(rev16 r0, r0) @ little endian instruction
2575 add r2, r2, #2 @ r2 is PC + 2, make it PC + 4
2576 str r2, [sp, #S_PC] @ it's a 2x16bit instr, update
2577@@ -547,7 +650,8 @@ ENDPROC(__und_usr)
2578 */
2579 .pushsection .fixup, "ax"
2580 .align 2
2581-4: str r4, [sp, #S_PC] @ retry current instruction
2582+4: pax_close_userland
2583+ str r4, [sp, #S_PC] @ retry current instruction
2584 ret r9
2585 .popsection
2586 .pushsection __ex_table,"a"
2587@@ -767,7 +871,7 @@ ENTRY(__switch_to)
2588 THUMB( str lr, [ip], #4 )
2589 ldr r4, [r2, #TI_TP_VALUE]
2590 ldr r5, [r2, #TI_TP_VALUE + 4]
2591-#ifdef CONFIG_CPU_USE_DOMAINS
2592+#if defined(CONFIG_CPU_USE_DOMAINS) || defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
2593 ldr r6, [r2, #TI_CPU_DOMAIN]
2594 #endif
2595 switch_tls r1, r4, r5, r3, r7
2596@@ -776,7 +880,7 @@ ENTRY(__switch_to)
2597 ldr r8, =__stack_chk_guard
2598 ldr r7, [r7, #TSK_STACK_CANARY]
2599 #endif
2600-#ifdef CONFIG_CPU_USE_DOMAINS
2601+#if defined(CONFIG_CPU_USE_DOMAINS) || defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
2602 mcr p15, 0, r6, c3, c0, 0 @ Set domain register
2603 #endif
2604 mov r5, r0
2605diff --git a/arch/arm/kernel/entry-common.S b/arch/arm/kernel/entry-common.S
2606index 4e7f40c..0f9ee2c 100644
2607--- a/arch/arm/kernel/entry-common.S
2608+++ b/arch/arm/kernel/entry-common.S
2609@@ -11,18 +11,46 @@
2610 #include <asm/assembler.h>
2611 #include <asm/unistd.h>
2612 #include <asm/ftrace.h>
2613+#include <asm/domain.h>
2614 #include <asm/unwind.h>
2615
2616+#include "entry-header.S"
2617+
2618 #ifdef CONFIG_NEED_RET_TO_USER
2619 #include <mach/entry-macro.S>
2620 #else
2621 .macro arch_ret_to_user, tmp1, tmp2
2622+#if defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
2623+ @ save regs
2624+ stmdb sp!, {r1, r2}
2625+ @ read DACR from cpu_domain into r1
2626+ mov r2, sp
2627+ @ assume 8K pages, since we have to split the immediate in two
2628+ bic r2, r2, #(0x1fc0)
2629+ bic r2, r2, #(0x3f)
2630+ ldr r1, [r2, #TI_CPU_DOMAIN]
2631+#ifdef CONFIG_PAX_KERNEXEC
2632+ @ set type of DOMAIN_KERNEL to DOMAIN_KERNELCLIENT
2633+ bic r1, r1, #(domain_val(DOMAIN_KERNEL, 3))
2634+ orr r1, r1, #(domain_val(DOMAIN_KERNEL, DOMAIN_KERNELCLIENT))
2635+#endif
2636+#ifdef CONFIG_PAX_MEMORY_UDEREF
2637+ @ set current DOMAIN_USER to DOMAIN_UDEREF
2638+ bic r1, r1, #(domain_val(DOMAIN_USER, 3))
2639+ orr r1, r1, #(domain_val(DOMAIN_USER, DOMAIN_UDEREF))
2640+#endif
2641+ @ write r1 to current_thread_info()->cpu_domain
2642+ str r1, [r2, #TI_CPU_DOMAIN]
2643+ @ write r1 to DACR
2644+ mcr p15, 0, r1, c3, c0, 0
2645+ @ instruction sync
2646+ instr_sync
2647+ @ restore regs
2648+ ldmia sp!, {r1, r2}
2649+#endif
2650 .endm
2651 #endif
2652
2653-#include "entry-header.S"
2654-
2655-
2656 .align 5
2657 /*
2658 * This is the fast syscall return path. We do as little as
2659@@ -173,6 +201,12 @@ ENTRY(vector_swi)
2660 USER( ldr scno, [lr, #-4] ) @ get SWI instruction
2661 #endif
2662
2663+ /*
2664+ * do this here to avoid a performance hit of wrapping the code above
2665+ * that directly dereferences userland to parse the SWI instruction
2666+ */
2667+ pax_enter_kernel_user
2668+
2669 adr tbl, sys_call_table @ load syscall table pointer
2670
2671 #if defined(CONFIG_OABI_COMPAT)
2672diff --git a/arch/arm/kernel/entry-header.S b/arch/arm/kernel/entry-header.S
2673index 1a0045a..9b4f34d 100644
2674--- a/arch/arm/kernel/entry-header.S
2675+++ b/arch/arm/kernel/entry-header.S
2676@@ -196,6 +196,60 @@
2677 msr cpsr_c, \rtemp @ switch back to the SVC mode
2678 .endm
2679
2680+ .macro pax_enter_kernel_user
2681+#if defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
2682+ @ save regs
2683+ stmdb sp!, {r0, r1}
2684+ @ read DACR from cpu_domain into r1
2685+ mov r0, sp
2686+ @ assume 8K pages, since we have to split the immediate in two
2687+ bic r0, r0, #(0x1fc0)
2688+ bic r0, r0, #(0x3f)
2689+ ldr r1, [r0, #TI_CPU_DOMAIN]
2690+#ifdef CONFIG_PAX_MEMORY_UDEREF
2691+ @ set current DOMAIN_USER to DOMAIN_NOACCESS
2692+ bic r1, r1, #(domain_val(DOMAIN_USER, 3))
2693+#endif
2694+#ifdef CONFIG_PAX_KERNEXEC
2695+ @ set current DOMAIN_KERNEL to DOMAIN_KERNELCLIENT
2696+ bic r1, r1, #(domain_val(DOMAIN_KERNEL, 3))
2697+ orr r1, r1, #(domain_val(DOMAIN_KERNEL, DOMAIN_KERNELCLIENT))
2698+#endif
2699+ @ write r1 to current_thread_info()->cpu_domain
2700+ str r1, [r0, #TI_CPU_DOMAIN]
2701+ @ write r1 to DACR
2702+ mcr p15, 0, r1, c3, c0, 0
2703+ @ instruction sync
2704+ instr_sync
2705+ @ restore regs
2706+ ldmia sp!, {r0, r1}
2707+#endif
2708+ .endm
2709+
2710+ .macro pax_exit_kernel
2711+#if defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
2712+ @ save regs
2713+ stmdb sp!, {r0, r1}
2714+ @ read old DACR from stack into r1
2715+ ldr r1, [sp, #(8 + S_SP)]
2716+ sub r1, r1, #8
2717+ ldr r1, [r1]
2718+
2719+ @ write r1 to current_thread_info()->cpu_domain
2720+ mov r0, sp
2721+ @ assume 8K pages, since we have to split the immediate in two
2722+ bic r0, r0, #(0x1fc0)
2723+ bic r0, r0, #(0x3f)
2724+ str r1, [r0, #TI_CPU_DOMAIN]
2725+ @ write r1 to DACR
2726+ mcr p15, 0, r1, c3, c0, 0
2727+ @ instruction sync
2728+ instr_sync
2729+ @ restore regs
2730+ ldmia sp!, {r0, r1}
2731+#endif
2732+ .endm
2733+
2734 #ifndef CONFIG_THUMB2_KERNEL
2735 .macro svc_exit, rpsr, irq = 0
2736 .if \irq != 0
2737@@ -215,6 +269,9 @@
2738 blne trace_hardirqs_off
2739 #endif
2740 .endif
2741+
2742+ pax_exit_kernel
2743+
2744 msr spsr_cxsf, \rpsr
2745 #if defined(CONFIG_CPU_V6) || defined(CONFIG_CPU_32v6K)
2746 @ We must avoid clrex due to Cortex-A15 erratum #830321
2747@@ -291,6 +348,9 @@
2748 blne trace_hardirqs_off
2749 #endif
2750 .endif
2751+
2752+ pax_exit_kernel
2753+
2754 ldr lr, [sp, #S_SP] @ top of the stack
2755 ldrd r0, r1, [sp, #S_LR] @ calling lr and pc
2756
2757diff --git a/arch/arm/kernel/fiq.c b/arch/arm/kernel/fiq.c
2758index 059c3da..8e45cfc 100644
2759--- a/arch/arm/kernel/fiq.c
2760+++ b/arch/arm/kernel/fiq.c
2761@@ -95,7 +95,10 @@ void set_fiq_handler(void *start, unsigned int length)
2762 void *base = vectors_page;
2763 unsigned offset = FIQ_OFFSET;
2764
2765+ pax_open_kernel();
2766 memcpy(base + offset, start, length);
2767+ pax_close_kernel();
2768+
2769 if (!cache_is_vipt_nonaliasing())
2770 flush_icache_range((unsigned long)base + offset, offset +
2771 length);
2772diff --git a/arch/arm/kernel/head.S b/arch/arm/kernel/head.S
2773index 0196327..50ac8895 100644
2774--- a/arch/arm/kernel/head.S
2775+++ b/arch/arm/kernel/head.S
2776@@ -444,7 +444,7 @@ __enable_mmu:
2777 mov r5, #(domain_val(DOMAIN_USER, DOMAIN_MANAGER) | \
2778 domain_val(DOMAIN_KERNEL, DOMAIN_MANAGER) | \
2779 domain_val(DOMAIN_TABLE, DOMAIN_MANAGER) | \
2780- domain_val(DOMAIN_IO, DOMAIN_CLIENT))
2781+ domain_val(DOMAIN_IO, DOMAIN_KERNELCLIENT))
2782 mcr p15, 0, r5, c3, c0, 0 @ load domain access register
2783 mcr p15, 0, r4, c2, c0, 0 @ load page table pointer
2784 #endif
2785diff --git a/arch/arm/kernel/module.c b/arch/arm/kernel/module.c
2786index 2e11961..07f0704 100644
2787--- a/arch/arm/kernel/module.c
2788+++ b/arch/arm/kernel/module.c
2789@@ -38,12 +38,39 @@
2790 #endif
2791
2792 #ifdef CONFIG_MMU
2793-void *module_alloc(unsigned long size)
2794+static inline void *__module_alloc(unsigned long size, pgprot_t prot)
2795 {
2796+ if (!size || PAGE_ALIGN(size) > MODULES_END - MODULES_VADDR)
2797+ return NULL;
2798 return __vmalloc_node_range(size, 1, MODULES_VADDR, MODULES_END,
2799- GFP_KERNEL, PAGE_KERNEL_EXEC, 0, NUMA_NO_NODE,
2800+ GFP_KERNEL, prot, 0, NUMA_NO_NODE,
2801 __builtin_return_address(0));
2802 }
2803+
2804+void *module_alloc(unsigned long size)
2805+{
2806+
2807+#ifdef CONFIG_PAX_KERNEXEC
2808+ return __module_alloc(size, PAGE_KERNEL);
2809+#else
2810+ return __module_alloc(size, PAGE_KERNEL_EXEC);
2811+#endif
2812+
2813+}
2814+
2815+#ifdef CONFIG_PAX_KERNEXEC
2816+void module_memfree_exec(void *module_region)
2817+{
2818+ module_memfree(module_region);
2819+}
2820+EXPORT_SYMBOL(module_memfree_exec);
2821+
2822+void *module_alloc_exec(unsigned long size)
2823+{
2824+ return __module_alloc(size, PAGE_KERNEL_EXEC);
2825+}
2826+EXPORT_SYMBOL(module_alloc_exec);
2827+#endif
2828 #endif
2829
2830 int
2831diff --git a/arch/arm/kernel/patch.c b/arch/arm/kernel/patch.c
2832index 69bda1a..755113a 100644
2833--- a/arch/arm/kernel/patch.c
2834+++ b/arch/arm/kernel/patch.c
2835@@ -66,6 +66,7 @@ void __kprobes __patch_text_real(void *addr, unsigned int insn, bool remap)
2836 else
2837 __acquire(&patch_lock);
2838
2839+ pax_open_kernel();
2840 if (thumb2 && __opcode_is_thumb16(insn)) {
2841 *(u16 *)waddr = __opcode_to_mem_thumb16(insn);
2842 size = sizeof(u16);
2843@@ -97,6 +98,7 @@ void __kprobes __patch_text_real(void *addr, unsigned int insn, bool remap)
2844 *(u32 *)waddr = insn;
2845 size = sizeof(u32);
2846 }
2847+ pax_close_kernel();
2848
2849 if (waddr != addr) {
2850 flush_kernel_vmap_range(waddr, twopage ? size / 2 : size);
2851diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
2852index 2bf1a16..d959d40 100644
2853--- a/arch/arm/kernel/process.c
2854+++ b/arch/arm/kernel/process.c
2855@@ -213,6 +213,7 @@ void machine_power_off(void)
2856
2857 if (pm_power_off)
2858 pm_power_off();
2859+ BUG();
2860 }
2861
2862 /*
2863@@ -226,7 +227,7 @@ void machine_power_off(void)
2864 * executing pre-reset code, and using RAM that the primary CPU's code wishes
2865 * to use. Implementing such co-ordination would be essentially impossible.
2866 */
2867-void machine_restart(char *cmd)
2868+__noreturn void machine_restart(char *cmd)
2869 {
2870 local_irq_disable();
2871 smp_send_stop();
2872@@ -252,8 +253,8 @@ void __show_regs(struct pt_regs *regs)
2873
2874 show_regs_print_info(KERN_DEFAULT);
2875
2876- print_symbol("PC is at %s\n", instruction_pointer(regs));
2877- print_symbol("LR is at %s\n", regs->ARM_lr);
2878+ printk("PC is at %pA\n", (void *)instruction_pointer(regs));
2879+ printk("LR is at %pA\n", (void *)regs->ARM_lr);
2880 printk("pc : [<%08lx>] lr : [<%08lx>] psr: %08lx\n"
2881 "sp : %08lx ip : %08lx fp : %08lx\n",
2882 regs->ARM_pc, regs->ARM_lr, regs->ARM_cpsr,
2883@@ -430,12 +431,6 @@ unsigned long get_wchan(struct task_struct *p)
2884 return 0;
2885 }
2886
2887-unsigned long arch_randomize_brk(struct mm_struct *mm)
2888-{
2889- unsigned long range_end = mm->brk + 0x02000000;
2890- return randomize_range(mm->brk, range_end, 0) ? : mm->brk;
2891-}
2892-
2893 #ifdef CONFIG_MMU
2894 #ifdef CONFIG_KUSER_HELPERS
2895 /*
2896@@ -451,7 +446,7 @@ static struct vm_area_struct gate_vma = {
2897
2898 static int __init gate_vma_init(void)
2899 {
2900- gate_vma.vm_page_prot = PAGE_READONLY_EXEC;
2901+ gate_vma.vm_page_prot = vm_get_page_prot(gate_vma.vm_flags);
2902 return 0;
2903 }
2904 arch_initcall(gate_vma_init);
2905@@ -480,81 +475,13 @@ const char *arch_vma_name(struct vm_area_struct *vma)
2906 return is_gate_vma(vma) ? "[vectors]" : NULL;
2907 }
2908
2909-/* If possible, provide a placement hint at a random offset from the
2910- * stack for the signal page.
2911- */
2912-static unsigned long sigpage_addr(const struct mm_struct *mm,
2913- unsigned int npages)
2914-{
2915- unsigned long offset;
2916- unsigned long first;
2917- unsigned long last;
2918- unsigned long addr;
2919- unsigned int slots;
2920-
2921- first = PAGE_ALIGN(mm->start_stack);
2922-
2923- last = TASK_SIZE - (npages << PAGE_SHIFT);
2924-
2925- /* No room after stack? */
2926- if (first > last)
2927- return 0;
2928-
2929- /* Just enough room? */
2930- if (first == last)
2931- return first;
2932-
2933- slots = ((last - first) >> PAGE_SHIFT) + 1;
2934-
2935- offset = get_random_int() % slots;
2936-
2937- addr = first + (offset << PAGE_SHIFT);
2938-
2939- return addr;
2940-}
2941-
2942-static struct page *signal_page;
2943-extern struct page *get_signal_page(void);
2944-
2945-static const struct vm_special_mapping sigpage_mapping = {
2946- .name = "[sigpage]",
2947- .pages = &signal_page,
2948-};
2949-
2950 int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
2951 {
2952 struct mm_struct *mm = current->mm;
2953- struct vm_area_struct *vma;
2954- unsigned long addr;
2955- unsigned long hint;
2956- int ret = 0;
2957-
2958- if (!signal_page)
2959- signal_page = get_signal_page();
2960- if (!signal_page)
2961- return -ENOMEM;
2962
2963 down_write(&mm->mmap_sem);
2964- hint = sigpage_addr(mm, 1);
2965- addr = get_unmapped_area(NULL, hint, PAGE_SIZE, 0, 0);
2966- if (IS_ERR_VALUE(addr)) {
2967- ret = addr;
2968- goto up_fail;
2969- }
2970-
2971- vma = _install_special_mapping(mm, addr, PAGE_SIZE,
2972- VM_READ | VM_EXEC | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC,
2973- &sigpage_mapping);
2974-
2975- if (IS_ERR(vma)) {
2976- ret = PTR_ERR(vma);
2977- goto up_fail;
2978- }
2979-
2980- mm->context.sigpage = addr;
2981-
2982- up_fail:
2983+ mm->context.sigpage = (PAGE_OFFSET + (get_random_int() % 0x3FFEFFE0)) & 0xFFFFFFFC;
2984 up_write(&mm->mmap_sem);
2985- return ret;
2986+ return 0;
2987 }
2988 #endif
2989diff --git a/arch/arm/kernel/psci.c b/arch/arm/kernel/psci.c
2990index f90fdf4..24e8c84 100644
2991--- a/arch/arm/kernel/psci.c
2992+++ b/arch/arm/kernel/psci.c
2993@@ -26,7 +26,7 @@
2994 #include <asm/psci.h>
2995 #include <asm/system_misc.h>
2996
2997-struct psci_operations psci_ops;
2998+struct psci_operations psci_ops __read_only;
2999
3000 static int (*invoke_psci_fn)(u32, u32, u32, u32);
3001 typedef int (*psci_initcall_t)(const struct device_node *);
3002diff --git a/arch/arm/kernel/ptrace.c b/arch/arm/kernel/ptrace.c
3003index ef9119f..31995a3 100644
3004--- a/arch/arm/kernel/ptrace.c
3005+++ b/arch/arm/kernel/ptrace.c
3006@@ -928,10 +928,19 @@ static void tracehook_report_syscall(struct pt_regs *regs,
3007 regs->ARM_ip = ip;
3008 }
3009
3010+#ifdef CONFIG_GRKERNSEC_SETXID
3011+extern void gr_delayed_cred_worker(void);
3012+#endif
3013+
3014 asmlinkage int syscall_trace_enter(struct pt_regs *regs, int scno)
3015 {
3016 current_thread_info()->syscall = scno;
3017
3018+#ifdef CONFIG_GRKERNSEC_SETXID
3019+ if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID)))
3020+ gr_delayed_cred_worker();
3021+#endif
3022+
3023 /* Do the secure computing check first; failures should be fast. */
3024 #ifdef CONFIG_HAVE_ARCH_SECCOMP_FILTER
3025 if (secure_computing() == -1)
3026diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
3027index 1d60beb..4aa25d5 100644
3028--- a/arch/arm/kernel/setup.c
3029+++ b/arch/arm/kernel/setup.c
3030@@ -105,21 +105,23 @@ EXPORT_SYMBOL(elf_hwcap);
3031 unsigned int elf_hwcap2 __read_mostly;
3032 EXPORT_SYMBOL(elf_hwcap2);
3033
3034+pteval_t __supported_pte_mask __read_only;
3035+pmdval_t __supported_pmd_mask __read_only;
3036
3037 #ifdef MULTI_CPU
3038-struct processor processor __read_mostly;
3039+struct processor processor __read_only;
3040 #endif
3041 #ifdef MULTI_TLB
3042-struct cpu_tlb_fns cpu_tlb __read_mostly;
3043+struct cpu_tlb_fns cpu_tlb __read_only;
3044 #endif
3045 #ifdef MULTI_USER
3046-struct cpu_user_fns cpu_user __read_mostly;
3047+struct cpu_user_fns cpu_user __read_only;
3048 #endif
3049 #ifdef MULTI_CACHE
3050-struct cpu_cache_fns cpu_cache __read_mostly;
3051+struct cpu_cache_fns cpu_cache __read_only;
3052 #endif
3053 #ifdef CONFIG_OUTER_CACHE
3054-struct outer_cache_fns outer_cache __read_mostly;
3055+struct outer_cache_fns outer_cache __read_only;
3056 EXPORT_SYMBOL(outer_cache);
3057 #endif
3058
3059@@ -250,9 +252,13 @@ static int __get_cpu_architecture(void)
3060 * Register 0 and check for VMSAv7 or PMSAv7 */
3061 unsigned int mmfr0 = read_cpuid_ext(CPUID_EXT_MMFR0);
3062 if ((mmfr0 & 0x0000000f) >= 0x00000003 ||
3063- (mmfr0 & 0x000000f0) >= 0x00000030)
3064+ (mmfr0 & 0x000000f0) >= 0x00000030) {
3065 cpu_arch = CPU_ARCH_ARMv7;
3066- else if ((mmfr0 & 0x0000000f) == 0x00000002 ||
3067+ if ((mmfr0 & 0x0000000f) == 0x00000005 || (mmfr0 & 0x0000000f) == 0x00000004) {
3068+ __supported_pte_mask |= L_PTE_PXN;
3069+ __supported_pmd_mask |= PMD_PXNTABLE;
3070+ }
3071+ } else if ((mmfr0 & 0x0000000f) == 0x00000002 ||
3072 (mmfr0 & 0x000000f0) == 0x00000020)
3073 cpu_arch = CPU_ARCH_ARMv6;
3074 else
3075diff --git a/arch/arm/kernel/signal.c b/arch/arm/kernel/signal.c
3076index 023ac90..0a69950 100644
3077--- a/arch/arm/kernel/signal.c
3078+++ b/arch/arm/kernel/signal.c
3079@@ -24,8 +24,6 @@
3080
3081 extern const unsigned long sigreturn_codes[7];
3082
3083-static unsigned long signal_return_offset;
3084-
3085 #ifdef CONFIG_CRUNCH
3086 static int preserve_crunch_context(struct crunch_sigframe __user *frame)
3087 {
3088@@ -396,8 +394,7 @@ setup_return(struct pt_regs *regs, struct ksignal *ksig,
3089 * except when the MPU has protected the vectors
3090 * page from PL0
3091 */
3092- retcode = mm->context.sigpage + signal_return_offset +
3093- (idx << 2) + thumb;
3094+ retcode = mm->context.sigpage + (idx << 2) + thumb;
3095 } else
3096 #endif
3097 {
3098@@ -603,33 +600,3 @@ do_work_pending(struct pt_regs *regs, unsigned int thread_flags, int syscall)
3099 } while (thread_flags & _TIF_WORK_MASK);
3100 return 0;
3101 }
3102-
3103-struct page *get_signal_page(void)
3104-{
3105- unsigned long ptr;
3106- unsigned offset;
3107- struct page *page;
3108- void *addr;
3109-
3110- page = alloc_pages(GFP_KERNEL, 0);
3111-
3112- if (!page)
3113- return NULL;
3114-
3115- addr = page_address(page);
3116-
3117- /* Give the signal return code some randomness */
3118- offset = 0x200 + (get_random_int() & 0x7fc);
3119- signal_return_offset = offset;
3120-
3121- /*
3122- * Copy signal return handlers into the vector page, and
3123- * set sigreturn to be a pointer to these.
3124- */
3125- memcpy(addr + offset, sigreturn_codes, sizeof(sigreturn_codes));
3126-
3127- ptr = (unsigned long)addr + offset;
3128- flush_icache_range(ptr, ptr + sizeof(sigreturn_codes));
3129-
3130- return page;
3131-}
3132diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c
3133index 86ef244..c518451 100644
3134--- a/arch/arm/kernel/smp.c
3135+++ b/arch/arm/kernel/smp.c
3136@@ -76,7 +76,7 @@ enum ipi_msg_type {
3137
3138 static DECLARE_COMPLETION(cpu_running);
3139
3140-static struct smp_operations smp_ops;
3141+static struct smp_operations smp_ops __read_only;
3142
3143 void __init smp_set_ops(struct smp_operations *ops)
3144 {
3145diff --git a/arch/arm/kernel/tcm.c b/arch/arm/kernel/tcm.c
3146index 7a3be1d..b00c7de 100644
3147--- a/arch/arm/kernel/tcm.c
3148+++ b/arch/arm/kernel/tcm.c
3149@@ -61,7 +61,7 @@ static struct map_desc itcm_iomap[] __initdata = {
3150 .virtual = ITCM_OFFSET,
3151 .pfn = __phys_to_pfn(ITCM_OFFSET),
3152 .length = 0,
3153- .type = MT_MEMORY_RWX_ITCM,
3154+ .type = MT_MEMORY_RX_ITCM,
3155 }
3156 };
3157
3158@@ -267,7 +267,9 @@ no_dtcm:
3159 start = &__sitcm_text;
3160 end = &__eitcm_text;
3161 ram = &__itcm_start;
3162+ pax_open_kernel();
3163 memcpy(start, ram, itcm_code_sz);
3164+ pax_close_kernel();
3165 pr_debug("CPU ITCM: copied code from %p - %p\n",
3166 start, end);
3167 itcm_present = true;
3168diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c
3169index 788e23f..6fa06a1 100644
3170--- a/arch/arm/kernel/traps.c
3171+++ b/arch/arm/kernel/traps.c
3172@@ -65,7 +65,7 @@ static void dump_mem(const char *, const char *, unsigned long, unsigned long);
3173 void dump_backtrace_entry(unsigned long where, unsigned long from, unsigned long frame)
3174 {
3175 #ifdef CONFIG_KALLSYMS
3176- printk("[<%08lx>] (%ps) from [<%08lx>] (%pS)\n", where, (void *)where, from, (void *)from);
3177+ printk("[<%08lx>] (%pA) from [<%08lx>] (%pA)\n", where, (void *)where, from, (void *)from);
3178 #else
3179 printk("Function entered at [<%08lx>] from [<%08lx>]\n", where, from);
3180 #endif
3181@@ -267,6 +267,8 @@ static arch_spinlock_t die_lock = __ARCH_SPIN_LOCK_UNLOCKED;
3182 static int die_owner = -1;
3183 static unsigned int die_nest_count;
3184
3185+extern void gr_handle_kernel_exploit(void);
3186+
3187 static unsigned long oops_begin(void)
3188 {
3189 int cpu;
3190@@ -309,6 +311,9 @@ static void oops_end(unsigned long flags, struct pt_regs *regs, int signr)
3191 panic("Fatal exception in interrupt");
3192 if (panic_on_oops)
3193 panic("Fatal exception");
3194+
3195+ gr_handle_kernel_exploit();
3196+
3197 if (signr)
3198 do_exit(signr);
3199 }
3200@@ -880,7 +885,11 @@ void __init early_trap_init(void *vectors_base)
3201 kuser_init(vectors_base);
3202
3203 flush_icache_range(vectors, vectors + PAGE_SIZE * 2);
3204- modify_domain(DOMAIN_USER, DOMAIN_CLIENT);
3205+
3206+#ifndef CONFIG_PAX_MEMORY_UDEREF
3207+ modify_domain(DOMAIN_USER, DOMAIN_USERCLIENT);
3208+#endif
3209+
3210 #else /* ifndef CONFIG_CPU_V7M */
3211 /*
3212 * on V7-M there is no need to copy the vector table to a dedicated
3213diff --git a/arch/arm/kernel/vmlinux.lds.S b/arch/arm/kernel/vmlinux.lds.S
3214index b31aa73..cc4b7a1 100644
3215--- a/arch/arm/kernel/vmlinux.lds.S
3216+++ b/arch/arm/kernel/vmlinux.lds.S
3217@@ -37,7 +37,7 @@
3218 #endif
3219
3220 #if (defined(CONFIG_SMP_ON_UP) && !defined(CONFIG_DEBUG_SPINLOCK)) || \
3221- defined(CONFIG_GENERIC_BUG)
3222+ defined(CONFIG_GENERIC_BUG) || defined(CONFIG_PAX_REFCOUNT)
3223 #define ARM_EXIT_KEEP(x) x
3224 #define ARM_EXIT_DISCARD(x)
3225 #else
3226@@ -123,6 +123,8 @@ SECTIONS
3227 #ifdef CONFIG_DEBUG_RODATA
3228 . = ALIGN(1<<SECTION_SHIFT);
3229 #endif
3230+ _etext = .; /* End of text section */
3231+
3232 RO_DATA(PAGE_SIZE)
3233
3234 . = ALIGN(4);
3235@@ -153,8 +155,6 @@ SECTIONS
3236
3237 NOTES
3238
3239- _etext = .; /* End of text and rodata section */
3240-
3241 #ifndef CONFIG_XIP_KERNEL
3242 # ifdef CONFIG_ARM_KERNMEM_PERMS
3243 . = ALIGN(1<<SECTION_SHIFT);
3244diff --git a/arch/arm/kvm/arm.c b/arch/arm/kvm/arm.c
3245index b652af5..60231ab 100644
3246--- a/arch/arm/kvm/arm.c
3247+++ b/arch/arm/kvm/arm.c
3248@@ -57,7 +57,7 @@ static unsigned long hyp_default_vectors;
3249 static DEFINE_PER_CPU(struct kvm_vcpu *, kvm_arm_running_vcpu);
3250
3251 /* The VMID used in the VTTBR */
3252-static atomic64_t kvm_vmid_gen = ATOMIC64_INIT(1);
3253+static atomic64_unchecked_t kvm_vmid_gen = ATOMIC64_INIT(1);
3254 static u8 kvm_next_vmid;
3255 static DEFINE_SPINLOCK(kvm_vmid_lock);
3256
3257@@ -358,7 +358,7 @@ void force_vm_exit(const cpumask_t *mask)
3258 */
3259 static bool need_new_vmid_gen(struct kvm *kvm)
3260 {
3261- return unlikely(kvm->arch.vmid_gen != atomic64_read(&kvm_vmid_gen));
3262+ return unlikely(kvm->arch.vmid_gen != atomic64_read_unchecked(&kvm_vmid_gen));
3263 }
3264
3265 /**
3266@@ -391,7 +391,7 @@ static void update_vttbr(struct kvm *kvm)
3267
3268 /* First user of a new VMID generation? */
3269 if (unlikely(kvm_next_vmid == 0)) {
3270- atomic64_inc(&kvm_vmid_gen);
3271+ atomic64_inc_unchecked(&kvm_vmid_gen);
3272 kvm_next_vmid = 1;
3273
3274 /*
3275@@ -408,7 +408,7 @@ static void update_vttbr(struct kvm *kvm)
3276 kvm_call_hyp(__kvm_flush_vm_context);
3277 }
3278
3279- kvm->arch.vmid_gen = atomic64_read(&kvm_vmid_gen);
3280+ kvm->arch.vmid_gen = atomic64_read_unchecked(&kvm_vmid_gen);
3281 kvm->arch.vmid = kvm_next_vmid;
3282 kvm_next_vmid++;
3283
3284@@ -1087,7 +1087,7 @@ struct kvm_vcpu *kvm_mpidr_to_vcpu(struct kvm *kvm, unsigned long mpidr)
3285 /**
3286 * Initialize Hyp-mode and memory mappings on all CPUs.
3287 */
3288-int kvm_arch_init(void *opaque)
3289+int kvm_arch_init(const void *opaque)
3290 {
3291 int err;
3292 int ret, cpu;
3293diff --git a/arch/arm/lib/clear_user.S b/arch/arm/lib/clear_user.S
3294index 14a0d98..7771a7d 100644
3295--- a/arch/arm/lib/clear_user.S
3296+++ b/arch/arm/lib/clear_user.S
3297@@ -12,14 +12,14 @@
3298
3299 .text
3300
3301-/* Prototype: int __clear_user(void *addr, size_t sz)
3302+/* Prototype: int ___clear_user(void *addr, size_t sz)
3303 * Purpose : clear some user memory
3304 * Params : addr - user memory address to clear
3305 * : sz - number of bytes to clear
3306 * Returns : number of bytes NOT cleared
3307 */
3308 ENTRY(__clear_user_std)
3309-WEAK(__clear_user)
3310+WEAK(___clear_user)
3311 stmfd sp!, {r1, lr}
3312 mov r2, #0
3313 cmp r1, #4
3314@@ -44,7 +44,7 @@ WEAK(__clear_user)
3315 USER( strnebt r2, [r0])
3316 mov r0, #0
3317 ldmfd sp!, {r1, pc}
3318-ENDPROC(__clear_user)
3319+ENDPROC(___clear_user)
3320 ENDPROC(__clear_user_std)
3321
3322 .pushsection .fixup,"ax"
3323diff --git a/arch/arm/lib/copy_from_user.S b/arch/arm/lib/copy_from_user.S
3324index 7a235b9..73a0556 100644
3325--- a/arch/arm/lib/copy_from_user.S
3326+++ b/arch/arm/lib/copy_from_user.S
3327@@ -17,7 +17,7 @@
3328 /*
3329 * Prototype:
3330 *
3331- * size_t __copy_from_user(void *to, const void *from, size_t n)
3332+ * size_t ___copy_from_user(void *to, const void *from, size_t n)
3333 *
3334 * Purpose:
3335 *
3336@@ -89,11 +89,11 @@
3337
3338 .text
3339
3340-ENTRY(__copy_from_user)
3341+ENTRY(___copy_from_user)
3342
3343 #include "copy_template.S"
3344
3345-ENDPROC(__copy_from_user)
3346+ENDPROC(___copy_from_user)
3347
3348 .pushsection .fixup,"ax"
3349 .align 0
3350diff --git a/arch/arm/lib/copy_page.S b/arch/arm/lib/copy_page.S
3351index 6ee2f67..d1cce76 100644
3352--- a/arch/arm/lib/copy_page.S
3353+++ b/arch/arm/lib/copy_page.S
3354@@ -10,6 +10,7 @@
3355 * ASM optimised string functions
3356 */
3357 #include <linux/linkage.h>
3358+#include <linux/const.h>
3359 #include <asm/assembler.h>
3360 #include <asm/asm-offsets.h>
3361 #include <asm/cache.h>
3362diff --git a/arch/arm/lib/copy_to_user.S b/arch/arm/lib/copy_to_user.S
3363index a9d3db1..164b089 100644
3364--- a/arch/arm/lib/copy_to_user.S
3365+++ b/arch/arm/lib/copy_to_user.S
3366@@ -17,7 +17,7 @@
3367 /*
3368 * Prototype:
3369 *
3370- * size_t __copy_to_user(void *to, const void *from, size_t n)
3371+ * size_t ___copy_to_user(void *to, const void *from, size_t n)
3372 *
3373 * Purpose:
3374 *
3375@@ -93,11 +93,11 @@
3376 .text
3377
3378 ENTRY(__copy_to_user_std)
3379-WEAK(__copy_to_user)
3380+WEAK(___copy_to_user)
3381
3382 #include "copy_template.S"
3383
3384-ENDPROC(__copy_to_user)
3385+ENDPROC(___copy_to_user)
3386 ENDPROC(__copy_to_user_std)
3387
3388 .pushsection .fixup,"ax"
3389diff --git a/arch/arm/lib/csumpartialcopyuser.S b/arch/arm/lib/csumpartialcopyuser.S
3390index 7d08b43..f7ca7ea 100644
3391--- a/arch/arm/lib/csumpartialcopyuser.S
3392+++ b/arch/arm/lib/csumpartialcopyuser.S
3393@@ -57,8 +57,8 @@
3394 * Returns : r0 = checksum, [[sp, #0], #0] = 0 or -EFAULT
3395 */
3396
3397-#define FN_ENTRY ENTRY(csum_partial_copy_from_user)
3398-#define FN_EXIT ENDPROC(csum_partial_copy_from_user)
3399+#define FN_ENTRY ENTRY(__csum_partial_copy_from_user)
3400+#define FN_EXIT ENDPROC(__csum_partial_copy_from_user)
3401
3402 #include "csumpartialcopygeneric.S"
3403
3404diff --git a/arch/arm/lib/delay.c b/arch/arm/lib/delay.c
3405index 312d43e..21d2322 100644
3406--- a/arch/arm/lib/delay.c
3407+++ b/arch/arm/lib/delay.c
3408@@ -29,7 +29,7 @@
3409 /*
3410 * Default to the loop-based delay implementation.
3411 */
3412-struct arm_delay_ops arm_delay_ops = {
3413+struct arm_delay_ops arm_delay_ops __read_only = {
3414 .delay = __loop_delay,
3415 .const_udelay = __loop_const_udelay,
3416 .udelay = __loop_udelay,
3417diff --git a/arch/arm/lib/uaccess_with_memcpy.c b/arch/arm/lib/uaccess_with_memcpy.c
3418index 3e58d71..029817c 100644
3419--- a/arch/arm/lib/uaccess_with_memcpy.c
3420+++ b/arch/arm/lib/uaccess_with_memcpy.c
3421@@ -136,7 +136,7 @@ out:
3422 }
3423
3424 unsigned long
3425-__copy_to_user(void __user *to, const void *from, unsigned long n)
3426+___copy_to_user(void __user *to, const void *from, unsigned long n)
3427 {
3428 /*
3429 * This test is stubbed out of the main function above to keep
3430@@ -190,7 +190,7 @@ out:
3431 return n;
3432 }
3433
3434-unsigned long __clear_user(void __user *addr, unsigned long n)
3435+unsigned long ___clear_user(void __user *addr, unsigned long n)
3436 {
3437 /* See rational for this in __copy_to_user() above. */
3438 if (n < 64)
3439diff --git a/arch/arm/mach-exynos/suspend.c b/arch/arm/mach-exynos/suspend.c
3440index 582ef2d..d314e82 100644
3441--- a/arch/arm/mach-exynos/suspend.c
3442+++ b/arch/arm/mach-exynos/suspend.c
3443@@ -18,6 +18,7 @@
3444 #include <linux/syscore_ops.h>
3445 #include <linux/cpu_pm.h>
3446 #include <linux/io.h>
3447+#include <linux/irq.h>
3448 #include <linux/irqchip/arm-gic.h>
3449 #include <linux/err.h>
3450 #include <linux/regulator/machine.h>
3451@@ -635,8 +636,10 @@ void __init exynos_pm_init(void)
3452 tmp |= pm_data->wake_disable_mask;
3453 pmu_raw_writel(tmp, S5P_WAKEUP_MASK);
3454
3455- exynos_pm_syscore_ops.suspend = pm_data->pm_suspend;
3456- exynos_pm_syscore_ops.resume = pm_data->pm_resume;
3457+ pax_open_kernel();
3458+ *(void **)&exynos_pm_syscore_ops.suspend = pm_data->pm_suspend;
3459+ *(void **)&exynos_pm_syscore_ops.resume = pm_data->pm_resume;
3460+ pax_close_kernel();
3461
3462 register_syscore_ops(&exynos_pm_syscore_ops);
3463 suspend_set_ops(&exynos_suspend_ops);
3464diff --git a/arch/arm/mach-keystone/keystone.c b/arch/arm/mach-keystone/keystone.c
3465index 0662087..004d163 100644
3466--- a/arch/arm/mach-keystone/keystone.c
3467+++ b/arch/arm/mach-keystone/keystone.c
3468@@ -27,7 +27,7 @@
3469
3470 #include "keystone.h"
3471
3472-static struct notifier_block platform_nb;
3473+static notifier_block_no_const platform_nb;
3474 static unsigned long keystone_dma_pfn_offset __read_mostly;
3475
3476 static int keystone_platform_notifier(struct notifier_block *nb,
3477diff --git a/arch/arm/mach-mvebu/coherency.c b/arch/arm/mach-mvebu/coherency.c
3478index e46e9ea..9141c83 100644
3479--- a/arch/arm/mach-mvebu/coherency.c
3480+++ b/arch/arm/mach-mvebu/coherency.c
3481@@ -117,7 +117,7 @@ static void __init armada_370_coherency_init(struct device_node *np)
3482
3483 /*
3484 * This ioremap hook is used on Armada 375/38x to ensure that PCIe
3485- * memory areas are mapped as MT_UNCACHED instead of MT_DEVICE. This
3486+ * memory areas are mapped as MT_UNCACHED_RW instead of MT_DEVICE. This
3487 * is needed as a workaround for a deadlock issue between the PCIe
3488 * interface and the cache controller.
3489 */
3490@@ -130,7 +130,7 @@ armada_pcie_wa_ioremap_caller(phys_addr_t phys_addr, size_t size,
3491 mvebu_mbus_get_pcie_mem_aperture(&pcie_mem);
3492
3493 if (pcie_mem.start <= phys_addr && (phys_addr + size) <= pcie_mem.end)
3494- mtype = MT_UNCACHED;
3495+ mtype = MT_UNCACHED_RW;
3496
3497 return __arm_ioremap_caller(phys_addr, size, mtype, caller);
3498 }
3499diff --git a/arch/arm/mach-omap2/board-n8x0.c b/arch/arm/mach-omap2/board-n8x0.c
3500index b6443a4..20a0b74 100644
3501--- a/arch/arm/mach-omap2/board-n8x0.c
3502+++ b/arch/arm/mach-omap2/board-n8x0.c
3503@@ -569,7 +569,7 @@ static int n8x0_menelaus_late_init(struct device *dev)
3504 }
3505 #endif
3506
3507-struct menelaus_platform_data n8x0_menelaus_platform_data __initdata = {
3508+struct menelaus_platform_data n8x0_menelaus_platform_data __initconst = {
3509 .late_init = n8x0_menelaus_late_init,
3510 };
3511
3512diff --git a/arch/arm/mach-omap2/omap-mpuss-lowpower.c b/arch/arm/mach-omap2/omap-mpuss-lowpower.c
3513index 79f49d9..70bf184 100644
3514--- a/arch/arm/mach-omap2/omap-mpuss-lowpower.c
3515+++ b/arch/arm/mach-omap2/omap-mpuss-lowpower.c
3516@@ -86,7 +86,7 @@ struct cpu_pm_ops {
3517 void (*resume)(void);
3518 void (*scu_prepare)(unsigned int cpu_id, unsigned int cpu_state);
3519 void (*hotplug_restart)(void);
3520-};
3521+} __no_const;
3522
3523 static DEFINE_PER_CPU(struct omap4_cpu_pm_info, omap4_pm_info);
3524 static struct powerdomain *mpuss_pd;
3525@@ -105,7 +105,7 @@ static void dummy_cpu_resume(void)
3526 static void dummy_scu_prepare(unsigned int cpu_id, unsigned int cpu_state)
3527 {}
3528
3529-struct cpu_pm_ops omap_pm_ops = {
3530+static struct cpu_pm_ops omap_pm_ops __read_only = {
3531 .finish_suspend = default_finish_suspend,
3532 .resume = dummy_cpu_resume,
3533 .scu_prepare = dummy_scu_prepare,
3534diff --git a/arch/arm/mach-omap2/omap-smp.c b/arch/arm/mach-omap2/omap-smp.c
3535index 5305ec7..6d74045 100644
3536--- a/arch/arm/mach-omap2/omap-smp.c
3537+++ b/arch/arm/mach-omap2/omap-smp.c
3538@@ -19,6 +19,7 @@
3539 #include <linux/device.h>
3540 #include <linux/smp.h>
3541 #include <linux/io.h>
3542+#include <linux/irq.h>
3543 #include <linux/irqchip/arm-gic.h>
3544
3545 #include <asm/smp_scu.h>
3546diff --git a/arch/arm/mach-omap2/omap-wakeupgen.c b/arch/arm/mach-omap2/omap-wakeupgen.c
3547index f961c46..4a453dc 100644
3548--- a/arch/arm/mach-omap2/omap-wakeupgen.c
3549+++ b/arch/arm/mach-omap2/omap-wakeupgen.c
3550@@ -344,7 +344,7 @@ static int irq_cpu_hotplug_notify(struct notifier_block *self,
3551 return NOTIFY_OK;
3552 }
3553
3554-static struct notifier_block __refdata irq_hotplug_notifier = {
3555+static struct notifier_block irq_hotplug_notifier = {
3556 .notifier_call = irq_cpu_hotplug_notify,
3557 };
3558
3559diff --git a/arch/arm/mach-omap2/omap_device.c b/arch/arm/mach-omap2/omap_device.c
3560index be9541e..821805f 100644
3561--- a/arch/arm/mach-omap2/omap_device.c
3562+++ b/arch/arm/mach-omap2/omap_device.c
3563@@ -510,7 +510,7 @@ void omap_device_delete(struct omap_device *od)
3564 struct platform_device __init *omap_device_build(const char *pdev_name,
3565 int pdev_id,
3566 struct omap_hwmod *oh,
3567- void *pdata, int pdata_len)
3568+ const void *pdata, int pdata_len)
3569 {
3570 struct omap_hwmod *ohs[] = { oh };
3571
3572@@ -538,7 +538,7 @@ struct platform_device __init *omap_device_build(const char *pdev_name,
3573 struct platform_device __init *omap_device_build_ss(const char *pdev_name,
3574 int pdev_id,
3575 struct omap_hwmod **ohs,
3576- int oh_cnt, void *pdata,
3577+ int oh_cnt, const void *pdata,
3578 int pdata_len)
3579 {
3580 int ret = -ENOMEM;
3581diff --git a/arch/arm/mach-omap2/omap_device.h b/arch/arm/mach-omap2/omap_device.h
3582index 78c02b3..c94109a 100644
3583--- a/arch/arm/mach-omap2/omap_device.h
3584+++ b/arch/arm/mach-omap2/omap_device.h
3585@@ -72,12 +72,12 @@ int omap_device_idle(struct platform_device *pdev);
3586 /* Core code interface */
3587
3588 struct platform_device *omap_device_build(const char *pdev_name, int pdev_id,
3589- struct omap_hwmod *oh, void *pdata,
3590+ struct omap_hwmod *oh, const void *pdata,
3591 int pdata_len);
3592
3593 struct platform_device *omap_device_build_ss(const char *pdev_name, int pdev_id,
3594 struct omap_hwmod **oh, int oh_cnt,
3595- void *pdata, int pdata_len);
3596+ const void *pdata, int pdata_len);
3597
3598 struct omap_device *omap_device_alloc(struct platform_device *pdev,
3599 struct omap_hwmod **ohs, int oh_cnt);
3600diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c
3601index 355b089..2c9d7c3 100644
3602--- a/arch/arm/mach-omap2/omap_hwmod.c
3603+++ b/arch/arm/mach-omap2/omap_hwmod.c
3604@@ -193,10 +193,10 @@ struct omap_hwmod_soc_ops {
3605 int (*init_clkdm)(struct omap_hwmod *oh);
3606 void (*update_context_lost)(struct omap_hwmod *oh);
3607 int (*get_context_lost)(struct omap_hwmod *oh);
3608-};
3609+} __no_const;
3610
3611 /* soc_ops: adapts the omap_hwmod code to the currently-booted SoC */
3612-static struct omap_hwmod_soc_ops soc_ops;
3613+static struct omap_hwmod_soc_ops soc_ops __read_only;
3614
3615 /* omap_hwmod_list contains all registered struct omap_hwmods */
3616 static LIST_HEAD(omap_hwmod_list);
3617diff --git a/arch/arm/mach-omap2/powerdomains43xx_data.c b/arch/arm/mach-omap2/powerdomains43xx_data.c
3618index 95fee54..cfa9cf1 100644
3619--- a/arch/arm/mach-omap2/powerdomains43xx_data.c
3620+++ b/arch/arm/mach-omap2/powerdomains43xx_data.c
3621@@ -10,6 +10,7 @@
3622
3623 #include <linux/kernel.h>
3624 #include <linux/init.h>
3625+#include <asm/pgtable.h>
3626
3627 #include "powerdomain.h"
3628
3629@@ -129,7 +130,9 @@ static int am43xx_check_vcvp(void)
3630
3631 void __init am43xx_powerdomains_init(void)
3632 {
3633- omap4_pwrdm_operations.pwrdm_has_voltdm = am43xx_check_vcvp;
3634+ pax_open_kernel();
3635+ *(void **)&omap4_pwrdm_operations.pwrdm_has_voltdm = am43xx_check_vcvp;
3636+ pax_close_kernel();
3637 pwrdm_register_platform_funcs(&omap4_pwrdm_operations);
3638 pwrdm_register_pwrdms(powerdomains_am43xx);
3639 pwrdm_complete_init();
3640diff --git a/arch/arm/mach-omap2/wd_timer.c b/arch/arm/mach-omap2/wd_timer.c
3641index ff0a68c..b312aa0 100644
3642--- a/arch/arm/mach-omap2/wd_timer.c
3643+++ b/arch/arm/mach-omap2/wd_timer.c
3644@@ -110,7 +110,9 @@ static int __init omap_init_wdt(void)
3645 struct omap_hwmod *oh;
3646 char *oh_name = "wd_timer2";
3647 char *dev_name = "omap_wdt";
3648- struct omap_wd_timer_platform_data pdata;
3649+ static struct omap_wd_timer_platform_data pdata = {
3650+ .read_reset_sources = prm_read_reset_sources
3651+ };
3652
3653 if (!cpu_class_is_omap2() || of_have_populated_dt())
3654 return 0;
3655@@ -121,8 +123,6 @@ static int __init omap_init_wdt(void)
3656 return -EINVAL;
3657 }
3658
3659- pdata.read_reset_sources = prm_read_reset_sources;
3660-
3661 pdev = omap_device_build(dev_name, id, oh, &pdata,
3662 sizeof(struct omap_wd_timer_platform_data));
3663 WARN(IS_ERR(pdev), "Can't build omap_device for %s:%s.\n",
3664diff --git a/arch/arm/mach-tegra/cpuidle-tegra20.c b/arch/arm/mach-tegra/cpuidle-tegra20.c
3665index 4f25a7c..a81be85 100644
3666--- a/arch/arm/mach-tegra/cpuidle-tegra20.c
3667+++ b/arch/arm/mach-tegra/cpuidle-tegra20.c
3668@@ -179,7 +179,7 @@ static int tegra20_idle_lp2_coupled(struct cpuidle_device *dev,
3669 bool entered_lp2 = false;
3670
3671 if (tegra_pending_sgi())
3672- ACCESS_ONCE(abort_flag) = true;
3673+ ACCESS_ONCE_RW(abort_flag) = true;
3674
3675 cpuidle_coupled_parallel_barrier(dev, &abort_barrier);
3676
3677diff --git a/arch/arm/mach-tegra/irq.c b/arch/arm/mach-tegra/irq.c
3678index ab95f53..4b977a7 100644
3679--- a/arch/arm/mach-tegra/irq.c
3680+++ b/arch/arm/mach-tegra/irq.c
3681@@ -20,6 +20,7 @@
3682 #include <linux/cpu_pm.h>
3683 #include <linux/interrupt.h>
3684 #include <linux/io.h>
3685+#include <linux/irq.h>
3686 #include <linux/irqchip/arm-gic.h>
3687 #include <linux/irq.h>
3688 #include <linux/kernel.h>
3689diff --git a/arch/arm/mach-ux500/pm.c b/arch/arm/mach-ux500/pm.c
3690index 2cb587b..6ddfebf 100644
3691--- a/arch/arm/mach-ux500/pm.c
3692+++ b/arch/arm/mach-ux500/pm.c
3693@@ -10,6 +10,7 @@
3694 */
3695
3696 #include <linux/kernel.h>
3697+#include <linux/irq.h>
3698 #include <linux/irqchip/arm-gic.h>
3699 #include <linux/delay.h>
3700 #include <linux/io.h>
3701diff --git a/arch/arm/mach-ux500/setup.h b/arch/arm/mach-ux500/setup.h
3702index 2dea8b5..6499da2 100644
3703--- a/arch/arm/mach-ux500/setup.h
3704+++ b/arch/arm/mach-ux500/setup.h
3705@@ -33,13 +33,6 @@ extern void ux500_timer_init(void);
3706 .type = MT_DEVICE, \
3707 }
3708
3709-#define __MEM_DEV_DESC(x, sz) { \
3710- .virtual = IO_ADDRESS(x), \
3711- .pfn = __phys_to_pfn(x), \
3712- .length = sz, \
3713- .type = MT_MEMORY_RWX, \
3714-}
3715-
3716 extern struct smp_operations ux500_smp_ops;
3717 extern void ux500_cpu_die(unsigned int cpu);
3718
3719diff --git a/arch/arm/mach-zynq/platsmp.c b/arch/arm/mach-zynq/platsmp.c
3720index 52d768f..5f93180 100644
3721--- a/arch/arm/mach-zynq/platsmp.c
3722+++ b/arch/arm/mach-zynq/platsmp.c
3723@@ -24,6 +24,7 @@
3724 #include <linux/io.h>
3725 #include <asm/cacheflush.h>
3726 #include <asm/smp_scu.h>
3727+#include <linux/irq.h>
3728 #include <linux/irqchip/arm-gic.h>
3729 #include "common.h"
3730
3731diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
3732index 9b4f29e..bbf3bfa 100644
3733--- a/arch/arm/mm/Kconfig
3734+++ b/arch/arm/mm/Kconfig
3735@@ -446,6 +446,7 @@ config CPU_32v5
3736
3737 config CPU_32v6
3738 bool
3739+ select CPU_USE_DOMAINS if CPU_V6 && MMU && !PAX_KERNEXEC && !PAX_MEMORY_UDEREF
3740 select TLS_REG_EMUL if !CPU_32v6K && !MMU
3741
3742 config CPU_32v6K
3743@@ -600,6 +601,7 @@ config CPU_CP15_MPU
3744
3745 config CPU_USE_DOMAINS
3746 bool
3747+ depends on !ARM_LPAE && !PAX_KERNEXEC && !PAX_MEMORY_UDEREF
3748 help
3749 This option enables or disables the use of domain switching
3750 via the set_fs() function.
3751@@ -798,7 +800,7 @@ config NEED_KUSER_HELPERS
3752
3753 config KUSER_HELPERS
3754 bool "Enable kuser helpers in vector page" if !NEED_KUSER_HELPERS
3755- depends on MMU
3756+ depends on MMU && (!(CPU_V6 || CPU_V6K || CPU_V7) || GRKERNSEC_OLD_ARM_USERLAND)
3757 default y
3758 help
3759 Warning: disabling this option may break user programs.
3760@@ -812,7 +814,7 @@ config KUSER_HELPERS
3761 See Documentation/arm/kernel_user_helpers.txt for details.
3762
3763 However, the fixed address nature of these helpers can be used
3764- by ROP (return orientated programming) authors when creating
3765+ by ROP (Return Oriented Programming) authors when creating
3766 exploits.
3767
3768 If all of the binaries and libraries which run on your platform
3769diff --git a/arch/arm/mm/alignment.c b/arch/arm/mm/alignment.c
3770index 2c0c541..4585df9 100644
3771--- a/arch/arm/mm/alignment.c
3772+++ b/arch/arm/mm/alignment.c
3773@@ -216,10 +216,12 @@ union offset_union {
3774 #define __get16_unaligned_check(ins,val,addr) \
3775 do { \
3776 unsigned int err = 0, v, a = addr; \
3777+ pax_open_userland(); \
3778 __get8_unaligned_check(ins,v,a,err); \
3779 val = v << ((BE) ? 8 : 0); \
3780 __get8_unaligned_check(ins,v,a,err); \
3781 val |= v << ((BE) ? 0 : 8); \
3782+ pax_close_userland(); \
3783 if (err) \
3784 goto fault; \
3785 } while (0)
3786@@ -233,6 +235,7 @@ union offset_union {
3787 #define __get32_unaligned_check(ins,val,addr) \
3788 do { \
3789 unsigned int err = 0, v, a = addr; \
3790+ pax_open_userland(); \
3791 __get8_unaligned_check(ins,v,a,err); \
3792 val = v << ((BE) ? 24 : 0); \
3793 __get8_unaligned_check(ins,v,a,err); \
3794@@ -241,6 +244,7 @@ union offset_union {
3795 val |= v << ((BE) ? 8 : 16); \
3796 __get8_unaligned_check(ins,v,a,err); \
3797 val |= v << ((BE) ? 0 : 24); \
3798+ pax_close_userland(); \
3799 if (err) \
3800 goto fault; \
3801 } while (0)
3802@@ -254,6 +258,7 @@ union offset_union {
3803 #define __put16_unaligned_check(ins,val,addr) \
3804 do { \
3805 unsigned int err = 0, v = val, a = addr; \
3806+ pax_open_userland(); \
3807 __asm__( FIRST_BYTE_16 \
3808 ARM( "1: "ins" %1, [%2], #1\n" ) \
3809 THUMB( "1: "ins" %1, [%2]\n" ) \
3810@@ -273,6 +278,7 @@ union offset_union {
3811 " .popsection\n" \
3812 : "=r" (err), "=&r" (v), "=&r" (a) \
3813 : "0" (err), "1" (v), "2" (a)); \
3814+ pax_close_userland(); \
3815 if (err) \
3816 goto fault; \
3817 } while (0)
3818@@ -286,6 +292,7 @@ union offset_union {
3819 #define __put32_unaligned_check(ins,val,addr) \
3820 do { \
3821 unsigned int err = 0, v = val, a = addr; \
3822+ pax_open_userland(); \
3823 __asm__( FIRST_BYTE_32 \
3824 ARM( "1: "ins" %1, [%2], #1\n" ) \
3825 THUMB( "1: "ins" %1, [%2]\n" ) \
3826@@ -315,6 +322,7 @@ union offset_union {
3827 " .popsection\n" \
3828 : "=r" (err), "=&r" (v), "=&r" (a) \
3829 : "0" (err), "1" (v), "2" (a)); \
3830+ pax_close_userland(); \
3831 if (err) \
3832 goto fault; \
3833 } while (0)
3834diff --git a/arch/arm/mm/cache-l2x0.c b/arch/arm/mm/cache-l2x0.c
3835index 8f15f70..d599a2b 100644
3836--- a/arch/arm/mm/cache-l2x0.c
3837+++ b/arch/arm/mm/cache-l2x0.c
3838@@ -43,7 +43,7 @@ struct l2c_init_data {
3839 void (*save)(void __iomem *);
3840 void (*configure)(void __iomem *);
3841 struct outer_cache_fns outer_cache;
3842-};
3843+} __do_const;
3844
3845 #define CACHE_LINE_SIZE 32
3846
3847diff --git a/arch/arm/mm/context.c b/arch/arm/mm/context.c
3848index 845769e..4278fd7 100644
3849--- a/arch/arm/mm/context.c
3850+++ b/arch/arm/mm/context.c
3851@@ -43,7 +43,7 @@
3852 #define NUM_USER_ASIDS ASID_FIRST_VERSION
3853
3854 static DEFINE_RAW_SPINLOCK(cpu_asid_lock);
3855-static atomic64_t asid_generation = ATOMIC64_INIT(ASID_FIRST_VERSION);
3856+static atomic64_unchecked_t asid_generation = ATOMIC64_INIT(ASID_FIRST_VERSION);
3857 static DECLARE_BITMAP(asid_map, NUM_USER_ASIDS);
3858
3859 static DEFINE_PER_CPU(atomic64_t, active_asids);
3860@@ -178,7 +178,7 @@ static u64 new_context(struct mm_struct *mm, unsigned int cpu)
3861 {
3862 static u32 cur_idx = 1;
3863 u64 asid = atomic64_read(&mm->context.id);
3864- u64 generation = atomic64_read(&asid_generation);
3865+ u64 generation = atomic64_read_unchecked(&asid_generation);
3866
3867 if (asid != 0) {
3868 /*
3869@@ -208,7 +208,7 @@ static u64 new_context(struct mm_struct *mm, unsigned int cpu)
3870 */
3871 asid = find_next_zero_bit(asid_map, NUM_USER_ASIDS, cur_idx);
3872 if (asid == NUM_USER_ASIDS) {
3873- generation = atomic64_add_return(ASID_FIRST_VERSION,
3874+ generation = atomic64_add_return_unchecked(ASID_FIRST_VERSION,
3875 &asid_generation);
3876 flush_context(cpu);
3877 asid = find_next_zero_bit(asid_map, NUM_USER_ASIDS, 1);
3878@@ -240,14 +240,14 @@ void check_and_switch_context(struct mm_struct *mm, struct task_struct *tsk)
3879 cpu_set_reserved_ttbr0();
3880
3881 asid = atomic64_read(&mm->context.id);
3882- if (!((asid ^ atomic64_read(&asid_generation)) >> ASID_BITS)
3883+ if (!((asid ^ atomic64_read_unchecked(&asid_generation)) >> ASID_BITS)
3884 && atomic64_xchg(&per_cpu(active_asids, cpu), asid))
3885 goto switch_mm_fastpath;
3886
3887 raw_spin_lock_irqsave(&cpu_asid_lock, flags);
3888 /* Check that our ASID belongs to the current generation. */
3889 asid = atomic64_read(&mm->context.id);
3890- if ((asid ^ atomic64_read(&asid_generation)) >> ASID_BITS) {
3891+ if ((asid ^ atomic64_read_unchecked(&asid_generation)) >> ASID_BITS) {
3892 asid = new_context(mm, cpu);
3893 atomic64_set(&mm->context.id, asid);
3894 }
3895diff --git a/arch/arm/mm/fault.c b/arch/arm/mm/fault.c
3896index 6333d9c..3bb19f2 100644
3897--- a/arch/arm/mm/fault.c
3898+++ b/arch/arm/mm/fault.c
3899@@ -25,6 +25,7 @@
3900 #include <asm/system_misc.h>
3901 #include <asm/system_info.h>
3902 #include <asm/tlbflush.h>
3903+#include <asm/sections.h>
3904
3905 #include "fault.h"
3906
3907@@ -138,6 +139,31 @@ __do_kernel_fault(struct mm_struct *mm, unsigned long addr, unsigned int fsr,
3908 if (fixup_exception(regs))
3909 return;
3910
3911+#ifdef CONFIG_PAX_MEMORY_UDEREF
3912+ if (addr < TASK_SIZE) {
3913+ if (current->signal->curr_ip)
3914+ printk(KERN_EMERG "PAX: From %pI4: %s:%d, uid/euid: %u/%u, attempted to access userland memory at %08lx\n", &current->signal->curr_ip, current->comm, task_pid_nr(current),
3915+ from_kuid_munged(&init_user_ns, current_uid()), from_kuid_munged(&init_user_ns, current_euid()), addr);
3916+ else
3917+ printk(KERN_EMERG "PAX: %s:%d, uid/euid: %u/%u, attempted to access userland memory at %08lx\n", current->comm, task_pid_nr(current),
3918+ from_kuid_munged(&init_user_ns, current_uid()), from_kuid_munged(&init_user_ns, current_euid()), addr);
3919+ }
3920+#endif
3921+
3922+#ifdef CONFIG_PAX_KERNEXEC
3923+ if ((fsr & FSR_WRITE) &&
3924+ (((unsigned long)_stext <= addr && addr < init_mm.end_code) ||
3925+ (MODULES_VADDR <= addr && addr < MODULES_END)))
3926+ {
3927+ if (current->signal->curr_ip)
3928+ printk(KERN_EMERG "PAX: From %pI4: %s:%d, uid/euid: %u/%u, attempted to modify kernel code\n", &current->signal->curr_ip, current->comm, task_pid_nr(current),
3929+ from_kuid_munged(&init_user_ns, current_uid()), from_kuid_munged(&init_user_ns, current_euid()));
3930+ else
3931+ printk(KERN_EMERG "PAX: %s:%d, uid/euid: %u/%u, attempted to modify kernel code\n", current->comm, task_pid_nr(current),
3932+ from_kuid_munged(&init_user_ns, current_uid()), from_kuid_munged(&init_user_ns, current_euid()));
3933+ }
3934+#endif
3935+
3936 /*
3937 * No handler, we'll have to terminate things with extreme prejudice.
3938 */
3939@@ -173,6 +199,13 @@ __do_user_fault(struct task_struct *tsk, unsigned long addr,
3940 }
3941 #endif
3942
3943+#ifdef CONFIG_PAX_PAGEEXEC
3944+ if (fsr & FSR_LNX_PF) {
3945+ pax_report_fault(regs, (void *)regs->ARM_pc, (void *)regs->ARM_sp);
3946+ do_group_exit(SIGKILL);
3947+ }
3948+#endif
3949+
3950 tsk->thread.address = addr;
3951 tsk->thread.error_code = fsr;
3952 tsk->thread.trap_no = 14;
3953@@ -400,6 +433,33 @@ do_page_fault(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
3954 }
3955 #endif /* CONFIG_MMU */
3956
3957+#ifdef CONFIG_PAX_PAGEEXEC
3958+void pax_report_insns(struct pt_regs *regs, void *pc, void *sp)
3959+{
3960+ long i;
3961+
3962+ printk(KERN_ERR "PAX: bytes at PC: ");
3963+ for (i = 0; i < 20; i++) {
3964+ unsigned char c;
3965+ if (get_user(c, (__force unsigned char __user *)pc+i))
3966+ printk(KERN_CONT "?? ");
3967+ else
3968+ printk(KERN_CONT "%02x ", c);
3969+ }
3970+ printk("\n");
3971+
3972+ printk(KERN_ERR "PAX: bytes at SP-4: ");
3973+ for (i = -1; i < 20; i++) {
3974+ unsigned long c;
3975+ if (get_user(c, (__force unsigned long __user *)sp+i))
3976+ printk(KERN_CONT "???????? ");
3977+ else
3978+ printk(KERN_CONT "%08lx ", c);
3979+ }
3980+ printk("\n");
3981+}
3982+#endif
3983+
3984 /*
3985 * First Level Translation Fault Handler
3986 *
3987@@ -547,9 +607,22 @@ do_DataAbort(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
3988 const struct fsr_info *inf = fsr_info + fsr_fs(fsr);
3989 struct siginfo info;
3990
3991+#ifdef CONFIG_PAX_MEMORY_UDEREF
3992+ if (addr < TASK_SIZE && is_domain_fault(fsr)) {
3993+ if (current->signal->curr_ip)
3994+ printk(KERN_EMERG "PAX: From %pI4: %s:%d, uid/euid: %u/%u, attempted to access userland memory at %08lx\n", &current->signal->curr_ip, current->comm, task_pid_nr(current),
3995+ from_kuid_munged(&init_user_ns, current_uid()), from_kuid_munged(&init_user_ns, current_euid()), addr);
3996+ else
3997+ printk(KERN_EMERG "PAX: %s:%d, uid/euid: %u/%u, attempted to access userland memory at %08lx\n", current->comm, task_pid_nr(current),
3998+ from_kuid_munged(&init_user_ns, current_uid()), from_kuid_munged(&init_user_ns, current_euid()), addr);
3999+ goto die;
4000+ }
4001+#endif
4002+
4003 if (!inf->fn(addr, fsr & ~FSR_LNX_PF, regs))
4004 return;
4005
4006+die:
4007 pr_alert("Unhandled fault: %s (0x%03x) at 0x%08lx\n",
4008 inf->name, fsr, addr);
4009 show_pte(current->mm, addr);
4010@@ -574,15 +647,104 @@ hook_ifault_code(int nr, int (*fn)(unsigned long, unsigned int, struct pt_regs *
4011 ifsr_info[nr].name = name;
4012 }
4013
4014+asmlinkage int sys_sigreturn(struct pt_regs *regs);
4015+asmlinkage int sys_rt_sigreturn(struct pt_regs *regs);
4016+
4017 asmlinkage void __exception
4018 do_PrefetchAbort(unsigned long addr, unsigned int ifsr, struct pt_regs *regs)
4019 {
4020 const struct fsr_info *inf = ifsr_info + fsr_fs(ifsr);
4021 struct siginfo info;
4022+ unsigned long pc = instruction_pointer(regs);
4023+
4024+ if (user_mode(regs)) {
4025+ unsigned long sigpage = current->mm->context.sigpage;
4026+
4027+ if (sigpage <= pc && pc < sigpage + 7*4) {
4028+ if (pc < sigpage + 3*4)
4029+ sys_sigreturn(regs);
4030+ else
4031+ sys_rt_sigreturn(regs);
4032+ return;
4033+ }
4034+ if (pc == 0xffff0f60UL) {
4035+ /*
4036+ * PaX: __kuser_cmpxchg64 emulation
4037+ */
4038+ // TODO
4039+ //regs->ARM_pc = regs->ARM_lr;
4040+ //return;
4041+ }
4042+ if (pc == 0xffff0fa0UL) {
4043+ /*
4044+ * PaX: __kuser_memory_barrier emulation
4045+ */
4046+ // dmb(); implied by the exception
4047+ regs->ARM_pc = regs->ARM_lr;
4048+ return;
4049+ }
4050+ if (pc == 0xffff0fc0UL) {
4051+ /*
4052+ * PaX: __kuser_cmpxchg emulation
4053+ */
4054+ // TODO
4055+ //long new;
4056+ //int op;
4057+
4058+ //op = FUTEX_OP_SET << 28;
4059+ //new = futex_atomic_op_inuser(op, regs->ARM_r2);
4060+ //regs->ARM_r0 = old != new;
4061+ //regs->ARM_pc = regs->ARM_lr;
4062+ //return;
4063+ }
4064+ if (pc == 0xffff0fe0UL) {
4065+ /*
4066+ * PaX: __kuser_get_tls emulation
4067+ */
4068+ regs->ARM_r0 = current_thread_info()->tp_value[0];
4069+ regs->ARM_pc = regs->ARM_lr;
4070+ return;
4071+ }
4072+ }
4073+
4074+#if defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
4075+ else if (is_domain_fault(ifsr) || is_xn_fault(ifsr)) {
4076+ if (current->signal->curr_ip)
4077+ printk(KERN_EMERG "PAX: From %pI4: %s:%d, uid/euid: %u/%u, attempted to execute %s memory at %08lx\n", &current->signal->curr_ip, current->comm, task_pid_nr(current),
4078+ from_kuid_munged(&init_user_ns, current_uid()), from_kuid_munged(&init_user_ns, current_euid()),
4079+ pc >= TASK_SIZE ? "non-executable kernel" : "userland", pc);
4080+ else
4081+ printk(KERN_EMERG "PAX: %s:%d, uid/euid: %u/%u, attempted to execute %s memory at %08lx\n", current->comm, task_pid_nr(current),
4082+ from_kuid_munged(&init_user_ns, current_uid()), from_kuid_munged(&init_user_ns, current_euid()),
4083+ pc >= TASK_SIZE ? "non-executable kernel" : "userland", pc);
4084+ goto die;
4085+ }
4086+#endif
4087+
4088+#ifdef CONFIG_PAX_REFCOUNT
4089+ if (fsr_fs(ifsr) == FAULT_CODE_DEBUG) {
4090+#ifdef CONFIG_THUMB2_KERNEL
4091+ unsigned short bkpt;
4092+
4093+ if (!probe_kernel_address(pc, bkpt) && cpu_to_le16(bkpt) == 0xbef1) {
4094+#else
4095+ unsigned int bkpt;
4096+
4097+ if (!probe_kernel_address(pc, bkpt) && cpu_to_le32(bkpt) == 0xe12f1073) {
4098+#endif
4099+ current->thread.error_code = ifsr;
4100+ current->thread.trap_no = 0;
4101+ pax_report_refcount_overflow(regs);
4102+ fixup_exception(regs);
4103+ return;
4104+ }
4105+ }
4106+#endif
4107
4108 if (!inf->fn(addr, ifsr | FSR_LNX_PF, regs))
4109 return;
4110
4111+die:
4112 pr_alert("Unhandled prefetch abort: %s (0x%03x) at 0x%08lx\n",
4113 inf->name, ifsr, addr);
4114
4115diff --git a/arch/arm/mm/fault.h b/arch/arm/mm/fault.h
4116index cf08bdf..772656c 100644
4117--- a/arch/arm/mm/fault.h
4118+++ b/arch/arm/mm/fault.h
4119@@ -3,6 +3,7 @@
4120
4121 /*
4122 * Fault status register encodings. We steal bit 31 for our own purposes.
4123+ * Set when the FSR value is from an instruction fault.
4124 */
4125 #define FSR_LNX_PF (1 << 31)
4126 #define FSR_WRITE (1 << 11)
4127@@ -22,6 +23,17 @@ static inline int fsr_fs(unsigned int fsr)
4128 }
4129 #endif
4130
4131+/* valid for LPAE and !LPAE */
4132+static inline int is_xn_fault(unsigned int fsr)
4133+{
4134+ return ((fsr_fs(fsr) & 0x3c) == 0xc);
4135+}
4136+
4137+static inline int is_domain_fault(unsigned int fsr)
4138+{
4139+ return ((fsr_fs(fsr) & 0xD) == 0x9);
4140+}
4141+
4142 void do_bad_area(unsigned long addr, unsigned int fsr, struct pt_regs *regs);
4143 unsigned long search_exception_table(unsigned long addr);
4144
4145diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
4146index 1609b02..def0785 100644
4147--- a/arch/arm/mm/init.c
4148+++ b/arch/arm/mm/init.c
4149@@ -755,7 +755,46 @@ void free_tcmmem(void)
4150 {
4151 #ifdef CONFIG_HAVE_TCM
4152 extern char __tcm_start, __tcm_end;
4153+#endif
4154
4155+#ifdef CONFIG_PAX_KERNEXEC
4156+ unsigned long addr;
4157+ pgd_t *pgd;
4158+ pud_t *pud;
4159+ pmd_t *pmd;
4160+ int cpu_arch = cpu_architecture();
4161+ unsigned int cr = get_cr();
4162+
4163+ if (cpu_arch >= CPU_ARCH_ARMv6 && (cr & CR_XP)) {
4164+ /* make pages tables, etc before .text NX */
4165+ for (addr = PAGE_OFFSET; addr < (unsigned long)_stext; addr += SECTION_SIZE) {
4166+ pgd = pgd_offset_k(addr);
4167+ pud = pud_offset(pgd, addr);
4168+ pmd = pmd_offset(pud, addr);
4169+ __section_update(pmd, addr, PMD_SECT_XN);
4170+ }
4171+ /* make init NX */
4172+ for (addr = (unsigned long)__init_begin; addr < (unsigned long)_sdata; addr += SECTION_SIZE) {
4173+ pgd = pgd_offset_k(addr);
4174+ pud = pud_offset(pgd, addr);
4175+ pmd = pmd_offset(pud, addr);
4176+ __section_update(pmd, addr, PMD_SECT_XN);
4177+ }
4178+ /* make kernel code/rodata RX */
4179+ for (addr = (unsigned long)_stext; addr < (unsigned long)__init_begin; addr += SECTION_SIZE) {
4180+ pgd = pgd_offset_k(addr);
4181+ pud = pud_offset(pgd, addr);
4182+ pmd = pmd_offset(pud, addr);
4183+#ifdef CONFIG_ARM_LPAE
4184+ __section_update(pmd, addr, PMD_SECT_RDONLY);
4185+#else
4186+ __section_update(pmd, addr, PMD_SECT_APX|PMD_SECT_AP_WRITE);
4187+#endif
4188+ }
4189+ }
4190+#endif
4191+
4192+#ifdef CONFIG_HAVE_TCM
4193 poison_init_mem(&__tcm_start, &__tcm_end - &__tcm_start);
4194 free_reserved_area(&__tcm_start, &__tcm_end, -1, "TCM link");
4195 #endif
4196diff --git a/arch/arm/mm/ioremap.c b/arch/arm/mm/ioremap.c
4197index d1e5ad7..84dcbf2 100644
4198--- a/arch/arm/mm/ioremap.c
4199+++ b/arch/arm/mm/ioremap.c
4200@@ -392,9 +392,9 @@ __arm_ioremap_exec(phys_addr_t phys_addr, size_t size, bool cached)
4201 unsigned int mtype;
4202
4203 if (cached)
4204- mtype = MT_MEMORY_RWX;
4205+ mtype = MT_MEMORY_RX;
4206 else
4207- mtype = MT_MEMORY_RWX_NONCACHED;
4208+ mtype = MT_MEMORY_RX_NONCACHED;
4209
4210 return __arm_ioremap_caller(phys_addr, size, mtype,
4211 __builtin_return_address(0));
4212diff --git a/arch/arm/mm/mmap.c b/arch/arm/mm/mmap.c
4213index 5e85ed3..b10a7ed 100644
4214--- a/arch/arm/mm/mmap.c
4215+++ b/arch/arm/mm/mmap.c
4216@@ -59,6 +59,7 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
4217 struct vm_area_struct *vma;
4218 int do_align = 0;
4219 int aliasing = cache_is_vipt_aliasing();
4220+ unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
4221 struct vm_unmapped_area_info info;
4222
4223 /*
4224@@ -81,6 +82,10 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
4225 if (len > TASK_SIZE)
4226 return -ENOMEM;
4227
4228+#ifdef CONFIG_PAX_RANDMMAP
4229+ if (!(mm->pax_flags & MF_PAX_RANDMMAP))
4230+#endif
4231+
4232 if (addr) {
4233 if (do_align)
4234 addr = COLOUR_ALIGN(addr, pgoff);
4235@@ -88,8 +93,7 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
4236 addr = PAGE_ALIGN(addr);
4237
4238 vma = find_vma(mm, addr);
4239- if (TASK_SIZE - len >= addr &&
4240- (!vma || addr + len <= vma->vm_start))
4241+ if (TASK_SIZE - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
4242 return addr;
4243 }
4244
4245@@ -99,6 +103,7 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
4246 info.high_limit = TASK_SIZE;
4247 info.align_mask = do_align ? (PAGE_MASK & (SHMLBA - 1)) : 0;
4248 info.align_offset = pgoff << PAGE_SHIFT;
4249+ info.threadstack_offset = offset;
4250 return vm_unmapped_area(&info);
4251 }
4252
4253@@ -112,6 +117,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
4254 unsigned long addr = addr0;
4255 int do_align = 0;
4256 int aliasing = cache_is_vipt_aliasing();
4257+ unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
4258 struct vm_unmapped_area_info info;
4259
4260 /*
4261@@ -132,6 +138,10 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
4262 return addr;
4263 }
4264
4265+#ifdef CONFIG_PAX_RANDMMAP
4266+ if (!(mm->pax_flags & MF_PAX_RANDMMAP))
4267+#endif
4268+
4269 /* requesting a specific address */
4270 if (addr) {
4271 if (do_align)
4272@@ -139,8 +149,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
4273 else
4274 addr = PAGE_ALIGN(addr);
4275 vma = find_vma(mm, addr);
4276- if (TASK_SIZE - len >= addr &&
4277- (!vma || addr + len <= vma->vm_start))
4278+ if (TASK_SIZE - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
4279 return addr;
4280 }
4281
4282@@ -150,6 +159,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
4283 info.high_limit = mm->mmap_base;
4284 info.align_mask = do_align ? (PAGE_MASK & (SHMLBA - 1)) : 0;
4285 info.align_offset = pgoff << PAGE_SHIFT;
4286+ info.threadstack_offset = offset;
4287 addr = vm_unmapped_area(&info);
4288
4289 /*
4290@@ -173,6 +183,10 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
4291 {
4292 unsigned long random_factor = 0UL;
4293
4294+#ifdef CONFIG_PAX_RANDMMAP
4295+ if (!(mm->pax_flags & MF_PAX_RANDMMAP))
4296+#endif
4297+
4298 /* 8 bits of randomness in 20 address space bits */
4299 if ((current->flags & PF_RANDOMIZE) &&
4300 !(current->personality & ADDR_NO_RANDOMIZE))
4301@@ -180,9 +194,21 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
4302
4303 if (mmap_is_legacy()) {
4304 mm->mmap_base = TASK_UNMAPPED_BASE + random_factor;
4305+
4306+#ifdef CONFIG_PAX_RANDMMAP
4307+ if (mm->pax_flags & MF_PAX_RANDMMAP)
4308+ mm->mmap_base += mm->delta_mmap;
4309+#endif
4310+
4311 mm->get_unmapped_area = arch_get_unmapped_area;
4312 } else {
4313 mm->mmap_base = mmap_base(random_factor);
4314+
4315+#ifdef CONFIG_PAX_RANDMMAP
4316+ if (mm->pax_flags & MF_PAX_RANDMMAP)
4317+ mm->mmap_base -= mm->delta_mmap + mm->delta_stack;
4318+#endif
4319+
4320 mm->get_unmapped_area = arch_get_unmapped_area_topdown;
4321 }
4322 }
4323diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
4324index 7186382..0c145cf 100644
4325--- a/arch/arm/mm/mmu.c
4326+++ b/arch/arm/mm/mmu.c
4327@@ -41,6 +41,22 @@
4328 #include "mm.h"
4329 #include "tcm.h"
4330
4331+#if defined(CONFIG_CPU_USE_DOMAINS) || defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
4332+void modify_domain(unsigned int dom, unsigned int type)
4333+{
4334+ struct thread_info *thread = current_thread_info();
4335+ unsigned int domain = thread->cpu_domain;
4336+ /*
4337+ * DOMAIN_MANAGER might be defined to some other value,
4338+ * use the arch-defined constant
4339+ */
4340+ domain &= ~domain_val(dom, 3);
4341+ thread->cpu_domain = domain | domain_val(dom, type);
4342+ set_domain(thread->cpu_domain);
4343+}
4344+EXPORT_SYMBOL(modify_domain);
4345+#endif
4346+
4347 /*
4348 * empty_zero_page is a special page that is used for
4349 * zero-initialized data and COW.
4350@@ -242,7 +258,15 @@ __setup("noalign", noalign_setup);
4351 #define PROT_PTE_S2_DEVICE PROT_PTE_DEVICE
4352 #define PROT_SECT_DEVICE PMD_TYPE_SECT|PMD_SECT_AP_WRITE
4353
4354-static struct mem_type mem_types[] = {
4355+#ifdef CONFIG_PAX_KERNEXEC
4356+#define L_PTE_KERNEXEC L_PTE_RDONLY
4357+#define PMD_SECT_KERNEXEC PMD_SECT_RDONLY
4358+#else
4359+#define L_PTE_KERNEXEC L_PTE_DIRTY
4360+#define PMD_SECT_KERNEXEC PMD_SECT_AP_WRITE
4361+#endif
4362+
4363+static struct mem_type mem_types[] __read_only = {
4364 [MT_DEVICE] = { /* Strongly ordered / ARMv6 shared device */
4365 .prot_pte = PROT_PTE_DEVICE | L_PTE_MT_DEV_SHARED |
4366 L_PTE_SHARED,
4367@@ -271,19 +295,19 @@ static struct mem_type mem_types[] = {
4368 .prot_sect = PROT_SECT_DEVICE,
4369 .domain = DOMAIN_IO,
4370 },
4371- [MT_UNCACHED] = {
4372+ [MT_UNCACHED_RW] = {
4373 .prot_pte = PROT_PTE_DEVICE,
4374 .prot_l1 = PMD_TYPE_TABLE,
4375 .prot_sect = PMD_TYPE_SECT | PMD_SECT_XN,
4376 .domain = DOMAIN_IO,
4377 },
4378- [MT_CACHECLEAN] = {
4379- .prot_sect = PMD_TYPE_SECT | PMD_SECT_XN,
4380+ [MT_CACHECLEAN_RO] = {
4381+ .prot_sect = PMD_TYPE_SECT | PMD_SECT_XN | PMD_SECT_RDONLY,
4382 .domain = DOMAIN_KERNEL,
4383 },
4384 #ifndef CONFIG_ARM_LPAE
4385- [MT_MINICLEAN] = {
4386- .prot_sect = PMD_TYPE_SECT | PMD_SECT_XN | PMD_SECT_MINICACHE,
4387+ [MT_MINICLEAN_RO] = {
4388+ .prot_sect = PMD_TYPE_SECT | PMD_SECT_MINICACHE | PMD_SECT_XN | PMD_SECT_RDONLY,
4389 .domain = DOMAIN_KERNEL,
4390 },
4391 #endif
4392@@ -291,15 +315,15 @@ static struct mem_type mem_types[] = {
4393 .prot_pte = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY |
4394 L_PTE_RDONLY,
4395 .prot_l1 = PMD_TYPE_TABLE,
4396- .domain = DOMAIN_USER,
4397+ .domain = DOMAIN_VECTORS,
4398 },
4399 [MT_HIGH_VECTORS] = {
4400 .prot_pte = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY |
4401 L_PTE_USER | L_PTE_RDONLY,
4402 .prot_l1 = PMD_TYPE_TABLE,
4403- .domain = DOMAIN_USER,
4404+ .domain = DOMAIN_VECTORS,
4405 },
4406- [MT_MEMORY_RWX] = {
4407+ [__MT_MEMORY_RWX] = {
4408 .prot_pte = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY,
4409 .prot_l1 = PMD_TYPE_TABLE,
4410 .prot_sect = PMD_TYPE_SECT | PMD_SECT_AP_WRITE,
4411@@ -312,17 +336,30 @@ static struct mem_type mem_types[] = {
4412 .prot_sect = PMD_TYPE_SECT | PMD_SECT_AP_WRITE,
4413 .domain = DOMAIN_KERNEL,
4414 },
4415- [MT_ROM] = {
4416- .prot_sect = PMD_TYPE_SECT,
4417+ [MT_MEMORY_RX] = {
4418+ .prot_pte = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_KERNEXEC,
4419+ .prot_l1 = PMD_TYPE_TABLE,
4420+ .prot_sect = PMD_TYPE_SECT | PMD_SECT_KERNEXEC,
4421+ .domain = DOMAIN_KERNEL,
4422+ },
4423+ [MT_ROM_RX] = {
4424+ .prot_sect = PMD_TYPE_SECT | PMD_SECT_RDONLY,
4425 .domain = DOMAIN_KERNEL,
4426 },
4427- [MT_MEMORY_RWX_NONCACHED] = {
4428+ [MT_MEMORY_RW_NONCACHED] = {
4429 .prot_pte = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY |
4430 L_PTE_MT_BUFFERABLE,
4431 .prot_l1 = PMD_TYPE_TABLE,
4432 .prot_sect = PMD_TYPE_SECT | PMD_SECT_AP_WRITE,
4433 .domain = DOMAIN_KERNEL,
4434 },
4435+ [MT_MEMORY_RX_NONCACHED] = {
4436+ .prot_pte = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_KERNEXEC |
4437+ L_PTE_MT_BUFFERABLE,
4438+ .prot_l1 = PMD_TYPE_TABLE,
4439+ .prot_sect = PMD_TYPE_SECT | PMD_SECT_KERNEXEC,
4440+ .domain = DOMAIN_KERNEL,
4441+ },
4442 [MT_MEMORY_RW_DTCM] = {
4443 .prot_pte = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY |
4444 L_PTE_XN,
4445@@ -330,9 +367,10 @@ static struct mem_type mem_types[] = {
4446 .prot_sect = PMD_TYPE_SECT | PMD_SECT_XN,
4447 .domain = DOMAIN_KERNEL,
4448 },
4449- [MT_MEMORY_RWX_ITCM] = {
4450- .prot_pte = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY,
4451+ [MT_MEMORY_RX_ITCM] = {
4452+ .prot_pte = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_KERNEXEC,
4453 .prot_l1 = PMD_TYPE_TABLE,
4454+ .prot_sect = PMD_TYPE_SECT | PMD_SECT_KERNEXEC,
4455 .domain = DOMAIN_KERNEL,
4456 },
4457 [MT_MEMORY_RW_SO] = {
4458@@ -544,9 +582,14 @@ static void __init build_mem_type_table(void)
4459 * Mark cache clean areas and XIP ROM read only
4460 * from SVC mode and no access from userspace.
4461 */
4462- mem_types[MT_ROM].prot_sect |= PMD_SECT_APX|PMD_SECT_AP_WRITE;
4463- mem_types[MT_MINICLEAN].prot_sect |= PMD_SECT_APX|PMD_SECT_AP_WRITE;
4464- mem_types[MT_CACHECLEAN].prot_sect |= PMD_SECT_APX|PMD_SECT_AP_WRITE;
4465+ mem_types[MT_ROM_RX].prot_sect |= PMD_SECT_APX|PMD_SECT_AP_WRITE;
4466+#ifdef CONFIG_PAX_KERNEXEC
4467+ mem_types[MT_MEMORY_RX].prot_sect |= PMD_SECT_APX|PMD_SECT_AP_WRITE;
4468+ mem_types[MT_MEMORY_RX_NONCACHED].prot_sect |= PMD_SECT_APX|PMD_SECT_AP_WRITE;
4469+ mem_types[MT_MEMORY_RX_ITCM].prot_sect |= PMD_SECT_APX|PMD_SECT_AP_WRITE;
4470+#endif
4471+ mem_types[MT_MINICLEAN_RO].prot_sect |= PMD_SECT_APX|PMD_SECT_AP_WRITE;
4472+ mem_types[MT_CACHECLEAN_RO].prot_sect |= PMD_SECT_APX|PMD_SECT_AP_WRITE;
4473 #endif
4474
4475 /*
4476@@ -563,13 +606,17 @@ static void __init build_mem_type_table(void)
4477 mem_types[MT_DEVICE_WC].prot_pte |= L_PTE_SHARED;
4478 mem_types[MT_DEVICE_CACHED].prot_sect |= PMD_SECT_S;
4479 mem_types[MT_DEVICE_CACHED].prot_pte |= L_PTE_SHARED;
4480- mem_types[MT_MEMORY_RWX].prot_sect |= PMD_SECT_S;
4481- mem_types[MT_MEMORY_RWX].prot_pte |= L_PTE_SHARED;
4482+ mem_types[__MT_MEMORY_RWX].prot_sect |= PMD_SECT_S;
4483+ mem_types[__MT_MEMORY_RWX].prot_pte |= L_PTE_SHARED;
4484 mem_types[MT_MEMORY_RW].prot_sect |= PMD_SECT_S;
4485 mem_types[MT_MEMORY_RW].prot_pte |= L_PTE_SHARED;
4486+ mem_types[MT_MEMORY_RX].prot_sect |= PMD_SECT_S;
4487+ mem_types[MT_MEMORY_RX].prot_pte |= L_PTE_SHARED;
4488 mem_types[MT_MEMORY_DMA_READY].prot_pte |= L_PTE_SHARED;
4489- mem_types[MT_MEMORY_RWX_NONCACHED].prot_sect |= PMD_SECT_S;
4490- mem_types[MT_MEMORY_RWX_NONCACHED].prot_pte |= L_PTE_SHARED;
4491+ mem_types[MT_MEMORY_RW_NONCACHED].prot_sect |= PMD_SECT_S;
4492+ mem_types[MT_MEMORY_RW_NONCACHED].prot_pte |= L_PTE_SHARED;
4493+ mem_types[MT_MEMORY_RX_NONCACHED].prot_sect |= PMD_SECT_S;
4494+ mem_types[MT_MEMORY_RX_NONCACHED].prot_pte |= L_PTE_SHARED;
4495 }
4496 }
4497
4498@@ -580,15 +627,20 @@ static void __init build_mem_type_table(void)
4499 if (cpu_arch >= CPU_ARCH_ARMv6) {
4500 if (cpu_arch >= CPU_ARCH_ARMv7 && (cr & CR_TRE)) {
4501 /* Non-cacheable Normal is XCB = 001 */
4502- mem_types[MT_MEMORY_RWX_NONCACHED].prot_sect |=
4503+ mem_types[MT_MEMORY_RW_NONCACHED].prot_sect |=
4504+ PMD_SECT_BUFFERED;
4505+ mem_types[MT_MEMORY_RX_NONCACHED].prot_sect |=
4506 PMD_SECT_BUFFERED;
4507 } else {
4508 /* For both ARMv6 and non-TEX-remapping ARMv7 */
4509- mem_types[MT_MEMORY_RWX_NONCACHED].prot_sect |=
4510+ mem_types[MT_MEMORY_RW_NONCACHED].prot_sect |=
4511+ PMD_SECT_TEX(1);
4512+ mem_types[MT_MEMORY_RX_NONCACHED].prot_sect |=
4513 PMD_SECT_TEX(1);
4514 }
4515 } else {
4516- mem_types[MT_MEMORY_RWX_NONCACHED].prot_sect |= PMD_SECT_BUFFERABLE;
4517+ mem_types[MT_MEMORY_RW_NONCACHED].prot_sect |= PMD_SECT_BUFFERABLE;
4518+ mem_types[MT_MEMORY_RX_NONCACHED].prot_sect |= PMD_SECT_BUFFERABLE;
4519 }
4520
4521 #ifdef CONFIG_ARM_LPAE
4522@@ -609,6 +661,8 @@ static void __init build_mem_type_table(void)
4523 user_pgprot |= PTE_EXT_PXN;
4524 #endif
4525
4526+ user_pgprot |= __supported_pte_mask;
4527+
4528 for (i = 0; i < 16; i++) {
4529 pteval_t v = pgprot_val(protection_map[i]);
4530 protection_map[i] = __pgprot(v | user_pgprot);
4531@@ -626,21 +680,24 @@ static void __init build_mem_type_table(void)
4532
4533 mem_types[MT_LOW_VECTORS].prot_l1 |= ecc_mask;
4534 mem_types[MT_HIGH_VECTORS].prot_l1 |= ecc_mask;
4535- mem_types[MT_MEMORY_RWX].prot_sect |= ecc_mask | cp->pmd;
4536- mem_types[MT_MEMORY_RWX].prot_pte |= kern_pgprot;
4537+ mem_types[__MT_MEMORY_RWX].prot_sect |= ecc_mask | cp->pmd;
4538+ mem_types[__MT_MEMORY_RWX].prot_pte |= kern_pgprot;
4539 mem_types[MT_MEMORY_RW].prot_sect |= ecc_mask | cp->pmd;
4540 mem_types[MT_MEMORY_RW].prot_pte |= kern_pgprot;
4541+ mem_types[MT_MEMORY_RX].prot_sect |= ecc_mask | cp->pmd;
4542+ mem_types[MT_MEMORY_RX].prot_pte |= kern_pgprot;
4543 mem_types[MT_MEMORY_DMA_READY].prot_pte |= kern_pgprot;
4544- mem_types[MT_MEMORY_RWX_NONCACHED].prot_sect |= ecc_mask;
4545- mem_types[MT_ROM].prot_sect |= cp->pmd;
4546+ mem_types[MT_MEMORY_RW_NONCACHED].prot_sect |= ecc_mask;
4547+ mem_types[MT_MEMORY_RX_NONCACHED].prot_sect |= ecc_mask;
4548+ mem_types[MT_ROM_RX].prot_sect |= cp->pmd;
4549
4550 switch (cp->pmd) {
4551 case PMD_SECT_WT:
4552- mem_types[MT_CACHECLEAN].prot_sect |= PMD_SECT_WT;
4553+ mem_types[MT_CACHECLEAN_RO].prot_sect |= PMD_SECT_WT;
4554 break;
4555 case PMD_SECT_WB:
4556 case PMD_SECT_WBWA:
4557- mem_types[MT_CACHECLEAN].prot_sect |= PMD_SECT_WB;
4558+ mem_types[MT_CACHECLEAN_RO].prot_sect |= PMD_SECT_WB;
4559 break;
4560 }
4561 pr_info("Memory policy: %sData cache %s\n",
4562@@ -854,7 +911,7 @@ static void __init create_mapping(struct map_desc *md)
4563 return;
4564 }
4565
4566- if ((md->type == MT_DEVICE || md->type == MT_ROM) &&
4567+ if ((md->type == MT_DEVICE || md->type == MT_ROM_RX) &&
4568 md->virtual >= PAGE_OFFSET &&
4569 (md->virtual < VMALLOC_START || md->virtual >= VMALLOC_END)) {
4570 pr_warn("BUG: mapping for 0x%08llx at 0x%08lx out of vmalloc space\n",
4571@@ -1218,18 +1275,15 @@ void __init arm_mm_memblock_reserve(void)
4572 * called function. This means you can't use any function or debugging
4573 * method which may touch any device, otherwise the kernel _will_ crash.
4574 */
4575+
4576+static char vectors[PAGE_SIZE * 2] __read_only __aligned(PAGE_SIZE);
4577+
4578 static void __init devicemaps_init(const struct machine_desc *mdesc)
4579 {
4580 struct map_desc map;
4581 unsigned long addr;
4582- void *vectors;
4583
4584- /*
4585- * Allocate the vector page early.
4586- */
4587- vectors = early_alloc(PAGE_SIZE * 2);
4588-
4589- early_trap_init(vectors);
4590+ early_trap_init(&vectors);
4591
4592 for (addr = VMALLOC_START; addr; addr += PMD_SIZE)
4593 pmd_clear(pmd_off_k(addr));
4594@@ -1242,7 +1296,7 @@ static void __init devicemaps_init(const struct machine_desc *mdesc)
4595 map.pfn = __phys_to_pfn(CONFIG_XIP_PHYS_ADDR & SECTION_MASK);
4596 map.virtual = MODULES_VADDR;
4597 map.length = ((unsigned long)_etext - map.virtual + ~SECTION_MASK) & SECTION_MASK;
4598- map.type = MT_ROM;
4599+ map.type = MT_ROM_RX;
4600 create_mapping(&map);
4601 #endif
4602
4603@@ -1253,14 +1307,14 @@ static void __init devicemaps_init(const struct machine_desc *mdesc)
4604 map.pfn = __phys_to_pfn(FLUSH_BASE_PHYS);
4605 map.virtual = FLUSH_BASE;
4606 map.length = SZ_1M;
4607- map.type = MT_CACHECLEAN;
4608+ map.type = MT_CACHECLEAN_RO;
4609 create_mapping(&map);
4610 #endif
4611 #ifdef FLUSH_BASE_MINICACHE
4612 map.pfn = __phys_to_pfn(FLUSH_BASE_PHYS + SZ_1M);
4613 map.virtual = FLUSH_BASE_MINICACHE;
4614 map.length = SZ_1M;
4615- map.type = MT_MINICLEAN;
4616+ map.type = MT_MINICLEAN_RO;
4617 create_mapping(&map);
4618 #endif
4619
4620@@ -1269,7 +1323,7 @@ static void __init devicemaps_init(const struct machine_desc *mdesc)
4621 * location (0xffff0000). If we aren't using high-vectors, also
4622 * create a mapping at the low-vectors virtual address.
4623 */
4624- map.pfn = __phys_to_pfn(virt_to_phys(vectors));
4625+ map.pfn = __phys_to_pfn(virt_to_phys(&vectors));
4626 map.virtual = 0xffff0000;
4627 map.length = PAGE_SIZE;
4628 #ifdef CONFIG_KUSER_HELPERS
4629@@ -1329,8 +1383,10 @@ static void __init kmap_init(void)
4630 static void __init map_lowmem(void)
4631 {
4632 struct memblock_region *reg;
4633+#ifndef CONFIG_PAX_KERNEXEC
4634 phys_addr_t kernel_x_start = round_down(__pa(_stext), SECTION_SIZE);
4635 phys_addr_t kernel_x_end = round_up(__pa(__init_end), SECTION_SIZE);
4636+#endif
4637
4638 /* Map all the lowmem memory banks. */
4639 for_each_memblock(memory, reg) {
4640@@ -1343,11 +1399,48 @@ static void __init map_lowmem(void)
4641 if (start >= end)
4642 break;
4643
4644+#ifdef CONFIG_PAX_KERNEXEC
4645+ map.pfn = __phys_to_pfn(start);
4646+ map.virtual = __phys_to_virt(start);
4647+ map.length = end - start;
4648+
4649+ if (map.virtual <= (unsigned long)_stext && ((unsigned long)_end < (map.virtual + map.length))) {
4650+ struct map_desc kernel;
4651+ struct map_desc initmap;
4652+
4653+ /* when freeing initmem we will make this RW */
4654+ initmap.pfn = __phys_to_pfn(__pa(__init_begin));
4655+ initmap.virtual = (unsigned long)__init_begin;
4656+ initmap.length = _sdata - __init_begin;
4657+ initmap.type = __MT_MEMORY_RWX;
4658+ create_mapping(&initmap);
4659+
4660+ /* when freeing initmem we will make this RX */
4661+ kernel.pfn = __phys_to_pfn(__pa(_stext));
4662+ kernel.virtual = (unsigned long)_stext;
4663+ kernel.length = __init_begin - _stext;
4664+ kernel.type = __MT_MEMORY_RWX;
4665+ create_mapping(&kernel);
4666+
4667+ if (map.virtual < (unsigned long)_stext) {
4668+ map.length = (unsigned long)_stext - map.virtual;
4669+ map.type = __MT_MEMORY_RWX;
4670+ create_mapping(&map);
4671+ }
4672+
4673+ map.pfn = __phys_to_pfn(__pa(_sdata));
4674+ map.virtual = (unsigned long)_sdata;
4675+ map.length = end - __pa(_sdata);
4676+ }
4677+
4678+ map.type = MT_MEMORY_RW;
4679+ create_mapping(&map);
4680+#else
4681 if (end < kernel_x_start) {
4682 map.pfn = __phys_to_pfn(start);
4683 map.virtual = __phys_to_virt(start);
4684 map.length = end - start;
4685- map.type = MT_MEMORY_RWX;
4686+ map.type = __MT_MEMORY_RWX;
4687
4688 create_mapping(&map);
4689 } else if (start >= kernel_x_end) {
4690@@ -1371,7 +1464,7 @@ static void __init map_lowmem(void)
4691 map.pfn = __phys_to_pfn(kernel_x_start);
4692 map.virtual = __phys_to_virt(kernel_x_start);
4693 map.length = kernel_x_end - kernel_x_start;
4694- map.type = MT_MEMORY_RWX;
4695+ map.type = __MT_MEMORY_RWX;
4696
4697 create_mapping(&map);
4698
4699@@ -1384,6 +1477,7 @@ static void __init map_lowmem(void)
4700 create_mapping(&map);
4701 }
4702 }
4703+#endif
4704 }
4705 }
4706
4707diff --git a/arch/arm/net/bpf_jit_32.c b/arch/arm/net/bpf_jit_32.c
4708index f412b53..fc89433 100644
4709--- a/arch/arm/net/bpf_jit_32.c
4710+++ b/arch/arm/net/bpf_jit_32.c
4711@@ -20,6 +20,7 @@
4712 #include <asm/cacheflush.h>
4713 #include <asm/hwcap.h>
4714 #include <asm/opcodes.h>
4715+#include <asm/pgtable.h>
4716
4717 #include "bpf_jit_32.h"
4718
4719@@ -71,7 +72,11 @@ struct jit_ctx {
4720 #endif
4721 };
4722
4723+#ifdef CONFIG_GRKERNSEC_BPF_HARDEN
4724+int bpf_jit_enable __read_only;
4725+#else
4726 int bpf_jit_enable __read_mostly;
4727+#endif
4728
4729 static u64 jit_get_skb_b(struct sk_buff *skb, unsigned offset)
4730 {
4731@@ -178,8 +183,10 @@ static void jit_fill_hole(void *area, unsigned int size)
4732 {
4733 u32 *ptr;
4734 /* We are guaranteed to have aligned memory. */
4735+ pax_open_kernel();
4736 for (ptr = area; size >= sizeof(u32); size -= sizeof(u32))
4737 *ptr++ = __opcode_to_mem_arm(ARM_INST_UDF);
4738+ pax_close_kernel();
4739 }
4740
4741 static void build_prologue(struct jit_ctx *ctx)
4742diff --git a/arch/arm/plat-iop/setup.c b/arch/arm/plat-iop/setup.c
4743index 5b217f4..c23f40e 100644
4744--- a/arch/arm/plat-iop/setup.c
4745+++ b/arch/arm/plat-iop/setup.c
4746@@ -24,7 +24,7 @@ static struct map_desc iop3xx_std_desc[] __initdata = {
4747 .virtual = IOP3XX_PERIPHERAL_VIRT_BASE,
4748 .pfn = __phys_to_pfn(IOP3XX_PERIPHERAL_PHYS_BASE),
4749 .length = IOP3XX_PERIPHERAL_SIZE,
4750- .type = MT_UNCACHED,
4751+ .type = MT_UNCACHED_RW,
4752 },
4753 };
4754
4755diff --git a/arch/arm/plat-omap/sram.c b/arch/arm/plat-omap/sram.c
4756index a5bc92d..0bb4730 100644
4757--- a/arch/arm/plat-omap/sram.c
4758+++ b/arch/arm/plat-omap/sram.c
4759@@ -93,6 +93,8 @@ void __init omap_map_sram(unsigned long start, unsigned long size,
4760 * Looks like we need to preserve some bootloader code at the
4761 * beginning of SRAM for jumping to flash for reboot to work...
4762 */
4763+ pax_open_kernel();
4764 memset_io(omap_sram_base + omap_sram_skip, 0,
4765 omap_sram_size - omap_sram_skip);
4766+ pax_close_kernel();
4767 }
4768diff --git a/arch/arm64/include/asm/atomic.h b/arch/arm64/include/asm/atomic.h
4769index 7047051..44e8675 100644
4770--- a/arch/arm64/include/asm/atomic.h
4771+++ b/arch/arm64/include/asm/atomic.h
4772@@ -252,5 +252,15 @@ static inline int atomic64_add_unless(atomic64_t *v, long a, long u)
4773 #define atomic64_dec_and_test(v) (atomic64_dec_return((v)) == 0)
4774 #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1LL, 0LL)
4775
4776+#define atomic64_read_unchecked(v) atomic64_read(v)
4777+#define atomic64_set_unchecked(v, i) atomic64_set((v), (i))
4778+#define atomic64_add_unchecked(a, v) atomic64_add((a), (v))
4779+#define atomic64_add_return_unchecked(a, v) atomic64_add_return((a), (v))
4780+#define atomic64_sub_unchecked(a, v) atomic64_sub((a), (v))
4781+#define atomic64_inc_unchecked(v) atomic64_inc(v)
4782+#define atomic64_inc_return_unchecked(v) atomic64_inc_return(v)
4783+#define atomic64_dec_unchecked(v) atomic64_dec(v)
4784+#define atomic64_cmpxchg_unchecked(v, o, n) atomic64_cmpxchg((v), (o), (n))
4785+
4786 #endif
4787 #endif
4788diff --git a/arch/arm64/include/asm/barrier.h b/arch/arm64/include/asm/barrier.h
4789index a5abb00..9cbca9a 100644
4790--- a/arch/arm64/include/asm/barrier.h
4791+++ b/arch/arm64/include/asm/barrier.h
4792@@ -44,7 +44,7 @@
4793 do { \
4794 compiletime_assert_atomic_type(*p); \
4795 barrier(); \
4796- ACCESS_ONCE(*p) = (v); \
4797+ ACCESS_ONCE_RW(*p) = (v); \
4798 } while (0)
4799
4800 #define smp_load_acquire(p) \
4801diff --git a/arch/arm64/include/asm/percpu.h b/arch/arm64/include/asm/percpu.h
4802index 4fde8c1..441f84f 100644
4803--- a/arch/arm64/include/asm/percpu.h
4804+++ b/arch/arm64/include/asm/percpu.h
4805@@ -135,16 +135,16 @@ static inline void __percpu_write(void *ptr, unsigned long val, int size)
4806 {
4807 switch (size) {
4808 case 1:
4809- ACCESS_ONCE(*(u8 *)ptr) = (u8)val;
4810+ ACCESS_ONCE_RW(*(u8 *)ptr) = (u8)val;
4811 break;
4812 case 2:
4813- ACCESS_ONCE(*(u16 *)ptr) = (u16)val;
4814+ ACCESS_ONCE_RW(*(u16 *)ptr) = (u16)val;
4815 break;
4816 case 4:
4817- ACCESS_ONCE(*(u32 *)ptr) = (u32)val;
4818+ ACCESS_ONCE_RW(*(u32 *)ptr) = (u32)val;
4819 break;
4820 case 8:
4821- ACCESS_ONCE(*(u64 *)ptr) = (u64)val;
4822+ ACCESS_ONCE_RW(*(u64 *)ptr) = (u64)val;
4823 break;
4824 default:
4825 BUILD_BUG();
4826diff --git a/arch/arm64/include/asm/pgalloc.h b/arch/arm64/include/asm/pgalloc.h
4827index e20df38..027ede3 100644
4828--- a/arch/arm64/include/asm/pgalloc.h
4829+++ b/arch/arm64/include/asm/pgalloc.h
4830@@ -46,6 +46,11 @@ static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
4831 set_pud(pud, __pud(__pa(pmd) | PMD_TYPE_TABLE));
4832 }
4833
4834+static inline void pud_populate_kernel(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
4835+{
4836+ pud_populate(mm, pud, pmd);
4837+}
4838+
4839 #endif /* CONFIG_ARM64_PGTABLE_LEVELS > 2 */
4840
4841 #if CONFIG_ARM64_PGTABLE_LEVELS > 3
4842diff --git a/arch/arm64/include/asm/uaccess.h b/arch/arm64/include/asm/uaccess.h
4843index 07e1ba44..ec8cbbb 100644
4844--- a/arch/arm64/include/asm/uaccess.h
4845+++ b/arch/arm64/include/asm/uaccess.h
4846@@ -99,6 +99,7 @@ static inline void set_fs(mm_segment_t fs)
4847 flag; \
4848 })
4849
4850+#define access_ok_noprefault(type, addr, size) access_ok((type), (addr), (size))
4851 #define access_ok(type, addr, size) __range_ok(addr, size)
4852 #define user_addr_max get_fs
4853
4854diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c
4855index b0bd4e5..54e82f6 100644
4856--- a/arch/arm64/mm/dma-mapping.c
4857+++ b/arch/arm64/mm/dma-mapping.c
4858@@ -134,7 +134,7 @@ static void __dma_free_coherent(struct device *dev, size_t size,
4859 phys_to_page(paddr),
4860 size >> PAGE_SHIFT);
4861 if (!freed)
4862- swiotlb_free_coherent(dev, size, vaddr, dma_handle);
4863+ swiotlb_free_coherent(dev, size, vaddr, dma_handle, attrs);
4864 }
4865
4866 static void *__dma_alloc(struct device *dev, size_t size,
4867diff --git a/arch/avr32/include/asm/cache.h b/arch/avr32/include/asm/cache.h
4868index c3a58a1..78fbf54 100644
4869--- a/arch/avr32/include/asm/cache.h
4870+++ b/arch/avr32/include/asm/cache.h
4871@@ -1,8 +1,10 @@
4872 #ifndef __ASM_AVR32_CACHE_H
4873 #define __ASM_AVR32_CACHE_H
4874
4875+#include <linux/const.h>
4876+
4877 #define L1_CACHE_SHIFT 5
4878-#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
4879+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
4880
4881 /*
4882 * Memory returned by kmalloc() may be used for DMA, so we must make
4883diff --git a/arch/avr32/include/asm/elf.h b/arch/avr32/include/asm/elf.h
4884index d232888..87c8df1 100644
4885--- a/arch/avr32/include/asm/elf.h
4886+++ b/arch/avr32/include/asm/elf.h
4887@@ -84,8 +84,14 @@ typedef struct user_fpu_struct elf_fpregset_t;
4888 the loader. We need to make sure that it is out of the way of the program
4889 that it will "exec", and that there is sufficient room for the brk. */
4890
4891-#define ELF_ET_DYN_BASE (2 * TASK_SIZE / 3)
4892+#define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2)
4893
4894+#ifdef CONFIG_PAX_ASLR
4895+#define PAX_ELF_ET_DYN_BASE 0x00001000UL
4896+
4897+#define PAX_DELTA_MMAP_LEN 15
4898+#define PAX_DELTA_STACK_LEN 15
4899+#endif
4900
4901 /* This yields a mask that user programs can use to figure out what
4902 instruction set this CPU supports. This could be done in user space,
4903diff --git a/arch/avr32/include/asm/kmap_types.h b/arch/avr32/include/asm/kmap_types.h
4904index 479330b..53717a8 100644
4905--- a/arch/avr32/include/asm/kmap_types.h
4906+++ b/arch/avr32/include/asm/kmap_types.h
4907@@ -2,9 +2,9 @@
4908 #define __ASM_AVR32_KMAP_TYPES_H
4909
4910 #ifdef CONFIG_DEBUG_HIGHMEM
4911-# define KM_TYPE_NR 29
4912+# define KM_TYPE_NR 30
4913 #else
4914-# define KM_TYPE_NR 14
4915+# define KM_TYPE_NR 15
4916 #endif
4917
4918 #endif /* __ASM_AVR32_KMAP_TYPES_H */
4919diff --git a/arch/avr32/mm/fault.c b/arch/avr32/mm/fault.c
4920index d223a8b..69c5210 100644
4921--- a/arch/avr32/mm/fault.c
4922+++ b/arch/avr32/mm/fault.c
4923@@ -41,6 +41,23 @@ static inline int notify_page_fault(struct pt_regs *regs, int trap)
4924
4925 int exception_trace = 1;
4926
4927+#ifdef CONFIG_PAX_PAGEEXEC
4928+void pax_report_insns(struct pt_regs *regs, void *pc, void *sp)
4929+{
4930+ unsigned long i;
4931+
4932+ printk(KERN_ERR "PAX: bytes at PC: ");
4933+ for (i = 0; i < 20; i++) {
4934+ unsigned char c;
4935+ if (get_user(c, (unsigned char *)pc+i))
4936+ printk(KERN_CONT "???????? ");
4937+ else
4938+ printk(KERN_CONT "%02x ", c);
4939+ }
4940+ printk("\n");
4941+}
4942+#endif
4943+
4944 /*
4945 * This routine handles page faults. It determines the address and the
4946 * problem, and then passes it off to one of the appropriate routines.
4947@@ -178,6 +195,16 @@ bad_area:
4948 up_read(&mm->mmap_sem);
4949
4950 if (user_mode(regs)) {
4951+
4952+#ifdef CONFIG_PAX_PAGEEXEC
4953+ if (mm->pax_flags & MF_PAX_PAGEEXEC) {
4954+ if (ecr == ECR_PROTECTION_X || ecr == ECR_TLB_MISS_X) {
4955+ pax_report_fault(regs, (void *)regs->pc, (void *)regs->sp);
4956+ do_group_exit(SIGKILL);
4957+ }
4958+ }
4959+#endif
4960+
4961 if (exception_trace && printk_ratelimit())
4962 printk("%s%s[%d]: segfault at %08lx pc %08lx "
4963 "sp %08lx ecr %lu\n",
4964diff --git a/arch/blackfin/include/asm/cache.h b/arch/blackfin/include/asm/cache.h
4965index 568885a..f8008df 100644
4966--- a/arch/blackfin/include/asm/cache.h
4967+++ b/arch/blackfin/include/asm/cache.h
4968@@ -7,6 +7,7 @@
4969 #ifndef __ARCH_BLACKFIN_CACHE_H
4970 #define __ARCH_BLACKFIN_CACHE_H
4971
4972+#include <linux/const.h>
4973 #include <linux/linkage.h> /* for asmlinkage */
4974
4975 /*
4976@@ -14,7 +15,7 @@
4977 * Blackfin loads 32 bytes for cache
4978 */
4979 #define L1_CACHE_SHIFT 5
4980-#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
4981+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
4982 #define SMP_CACHE_BYTES L1_CACHE_BYTES
4983
4984 #define ARCH_DMA_MINALIGN L1_CACHE_BYTES
4985diff --git a/arch/cris/include/arch-v10/arch/cache.h b/arch/cris/include/arch-v10/arch/cache.h
4986index aea2718..3639a60 100644
4987--- a/arch/cris/include/arch-v10/arch/cache.h
4988+++ b/arch/cris/include/arch-v10/arch/cache.h
4989@@ -1,8 +1,9 @@
4990 #ifndef _ASM_ARCH_CACHE_H
4991 #define _ASM_ARCH_CACHE_H
4992
4993+#include <linux/const.h>
4994 /* Etrax 100LX have 32-byte cache-lines. */
4995-#define L1_CACHE_BYTES 32
4996 #define L1_CACHE_SHIFT 5
4997+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
4998
4999 #endif /* _ASM_ARCH_CACHE_H */
5000diff --git a/arch/cris/include/arch-v32/arch/cache.h b/arch/cris/include/arch-v32/arch/cache.h
5001index 7caf25d..ee65ac5 100644
5002--- a/arch/cris/include/arch-v32/arch/cache.h
5003+++ b/arch/cris/include/arch-v32/arch/cache.h
5004@@ -1,11 +1,12 @@
5005 #ifndef _ASM_CRIS_ARCH_CACHE_H
5006 #define _ASM_CRIS_ARCH_CACHE_H
5007
5008+#include <linux/const.h>
5009 #include <arch/hwregs/dma.h>
5010
5011 /* A cache-line is 32 bytes. */
5012-#define L1_CACHE_BYTES 32
5013 #define L1_CACHE_SHIFT 5
5014+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
5015
5016 #define __read_mostly __attribute__((__section__(".data..read_mostly")))
5017
5018diff --git a/arch/frv/include/asm/atomic.h b/arch/frv/include/asm/atomic.h
5019index 102190a..5334cea 100644
5020--- a/arch/frv/include/asm/atomic.h
5021+++ b/arch/frv/include/asm/atomic.h
5022@@ -181,6 +181,16 @@ static inline void atomic64_dec(atomic64_t *v)
5023 #define atomic64_cmpxchg(v, old, new) (__cmpxchg_64(old, new, &(v)->counter))
5024 #define atomic64_xchg(v, new) (__xchg_64(new, &(v)->counter))
5025
5026+#define atomic64_read_unchecked(v) atomic64_read(v)
5027+#define atomic64_set_unchecked(v, i) atomic64_set((v), (i))
5028+#define atomic64_add_unchecked(a, v) atomic64_add((a), (v))
5029+#define atomic64_add_return_unchecked(a, v) atomic64_add_return((a), (v))
5030+#define atomic64_sub_unchecked(a, v) atomic64_sub((a), (v))
5031+#define atomic64_inc_unchecked(v) atomic64_inc(v)
5032+#define atomic64_inc_return_unchecked(v) atomic64_inc_return(v)
5033+#define atomic64_dec_unchecked(v) atomic64_dec(v)
5034+#define atomic64_cmpxchg_unchecked(v, o, n) atomic64_cmpxchg((v), (o), (n))
5035+
5036 static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u)
5037 {
5038 int c, old;
5039diff --git a/arch/frv/include/asm/cache.h b/arch/frv/include/asm/cache.h
5040index 2797163..c2a401df9 100644
5041--- a/arch/frv/include/asm/cache.h
5042+++ b/arch/frv/include/asm/cache.h
5043@@ -12,10 +12,11 @@
5044 #ifndef __ASM_CACHE_H
5045 #define __ASM_CACHE_H
5046
5047+#include <linux/const.h>
5048
5049 /* bytes per L1 cache line */
5050 #define L1_CACHE_SHIFT (CONFIG_FRV_L1_CACHE_SHIFT)
5051-#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
5052+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
5053
5054 #define __cacheline_aligned __attribute__((aligned(L1_CACHE_BYTES)))
5055 #define ____cacheline_aligned __attribute__((aligned(L1_CACHE_BYTES)))
5056diff --git a/arch/frv/include/asm/kmap_types.h b/arch/frv/include/asm/kmap_types.h
5057index 43901f2..0d8b865 100644
5058--- a/arch/frv/include/asm/kmap_types.h
5059+++ b/arch/frv/include/asm/kmap_types.h
5060@@ -2,6 +2,6 @@
5061 #ifndef _ASM_KMAP_TYPES_H
5062 #define _ASM_KMAP_TYPES_H
5063
5064-#define KM_TYPE_NR 17
5065+#define KM_TYPE_NR 18
5066
5067 #endif
5068diff --git a/arch/frv/mm/elf-fdpic.c b/arch/frv/mm/elf-fdpic.c
5069index 836f147..4cf23f5 100644
5070--- a/arch/frv/mm/elf-fdpic.c
5071+++ b/arch/frv/mm/elf-fdpic.c
5072@@ -61,6 +61,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
5073 {
5074 struct vm_area_struct *vma;
5075 struct vm_unmapped_area_info info;
5076+ unsigned long offset = gr_rand_threadstack_offset(current->mm, filp, flags);
5077
5078 if (len > TASK_SIZE)
5079 return -ENOMEM;
5080@@ -73,8 +74,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
5081 if (addr) {
5082 addr = PAGE_ALIGN(addr);
5083 vma = find_vma(current->mm, addr);
5084- if (TASK_SIZE - len >= addr &&
5085- (!vma || addr + len <= vma->vm_start))
5086+ if (TASK_SIZE - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
5087 goto success;
5088 }
5089
5090@@ -85,6 +85,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
5091 info.high_limit = (current->mm->start_stack - 0x00200000);
5092 info.align_mask = 0;
5093 info.align_offset = 0;
5094+ info.threadstack_offset = offset;
5095 addr = vm_unmapped_area(&info);
5096 if (!(addr & ~PAGE_MASK))
5097 goto success;
5098diff --git a/arch/hexagon/include/asm/cache.h b/arch/hexagon/include/asm/cache.h
5099index 69952c18..4fa2908 100644
5100--- a/arch/hexagon/include/asm/cache.h
5101+++ b/arch/hexagon/include/asm/cache.h
5102@@ -21,9 +21,11 @@
5103 #ifndef __ASM_CACHE_H
5104 #define __ASM_CACHE_H
5105
5106+#include <linux/const.h>
5107+
5108 /* Bytes per L1 cache line */
5109-#define L1_CACHE_SHIFT (5)
5110-#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
5111+#define L1_CACHE_SHIFT 5
5112+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
5113
5114 #define ARCH_DMA_MINALIGN L1_CACHE_BYTES
5115
5116diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
5117index 074e52b..76afdac 100644
5118--- a/arch/ia64/Kconfig
5119+++ b/arch/ia64/Kconfig
5120@@ -548,6 +548,7 @@ source "drivers/sn/Kconfig"
5121 config KEXEC
5122 bool "kexec system call"
5123 depends on !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
5124+ depends on !GRKERNSEC_KMEM
5125 help
5126 kexec is a system call that implements the ability to shutdown your
5127 current kernel, and to start another kernel. It is like a reboot
5128diff --git a/arch/ia64/Makefile b/arch/ia64/Makefile
5129index 970d0bd..e750b9b 100644
5130--- a/arch/ia64/Makefile
5131+++ b/arch/ia64/Makefile
5132@@ -98,5 +98,6 @@ endef
5133 archprepare: make_nr_irqs_h FORCE
5134 PHONY += make_nr_irqs_h FORCE
5135
5136+make_nr_irqs_h: KBUILD_CFLAGS := $(filter-out $(GCC_PLUGINS_CFLAGS),$(KBUILD_CFLAGS))
5137 make_nr_irqs_h: FORCE
5138 $(Q)$(MAKE) $(build)=arch/ia64/kernel include/generated/nr-irqs.h
5139diff --git a/arch/ia64/include/asm/atomic.h b/arch/ia64/include/asm/atomic.h
5140index 0bf0350..2ad1957 100644
5141--- a/arch/ia64/include/asm/atomic.h
5142+++ b/arch/ia64/include/asm/atomic.h
5143@@ -193,4 +193,14 @@ atomic64_add_negative (__s64 i, atomic64_t *v)
5144 #define atomic64_inc(v) atomic64_add(1, (v))
5145 #define atomic64_dec(v) atomic64_sub(1, (v))
5146
5147+#define atomic64_read_unchecked(v) atomic64_read(v)
5148+#define atomic64_set_unchecked(v, i) atomic64_set((v), (i))
5149+#define atomic64_add_unchecked(a, v) atomic64_add((a), (v))
5150+#define atomic64_add_return_unchecked(a, v) atomic64_add_return((a), (v))
5151+#define atomic64_sub_unchecked(a, v) atomic64_sub((a), (v))
5152+#define atomic64_inc_unchecked(v) atomic64_inc(v)
5153+#define atomic64_inc_return_unchecked(v) atomic64_inc_return(v)
5154+#define atomic64_dec_unchecked(v) atomic64_dec(v)
5155+#define atomic64_cmpxchg_unchecked(v, o, n) atomic64_cmpxchg((v), (o), (n))
5156+
5157 #endif /* _ASM_IA64_ATOMIC_H */
5158diff --git a/arch/ia64/include/asm/barrier.h b/arch/ia64/include/asm/barrier.h
5159index f6769eb..1cdb590 100644
5160--- a/arch/ia64/include/asm/barrier.h
5161+++ b/arch/ia64/include/asm/barrier.h
5162@@ -66,7 +66,7 @@
5163 do { \
5164 compiletime_assert_atomic_type(*p); \
5165 barrier(); \
5166- ACCESS_ONCE(*p) = (v); \
5167+ ACCESS_ONCE_RW(*p) = (v); \
5168 } while (0)
5169
5170 #define smp_load_acquire(p) \
5171diff --git a/arch/ia64/include/asm/cache.h b/arch/ia64/include/asm/cache.h
5172index 988254a..e1ee885 100644
5173--- a/arch/ia64/include/asm/cache.h
5174+++ b/arch/ia64/include/asm/cache.h
5175@@ -1,6 +1,7 @@
5176 #ifndef _ASM_IA64_CACHE_H
5177 #define _ASM_IA64_CACHE_H
5178
5179+#include <linux/const.h>
5180
5181 /*
5182 * Copyright (C) 1998-2000 Hewlett-Packard Co
5183@@ -9,7 +10,7 @@
5184
5185 /* Bytes per L1 (data) cache line. */
5186 #define L1_CACHE_SHIFT CONFIG_IA64_L1_CACHE_SHIFT
5187-#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
5188+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
5189
5190 #ifdef CONFIG_SMP
5191 # define SMP_CACHE_SHIFT L1_CACHE_SHIFT
5192diff --git a/arch/ia64/include/asm/elf.h b/arch/ia64/include/asm/elf.h
5193index 5a83c5c..4d7f553 100644
5194--- a/arch/ia64/include/asm/elf.h
5195+++ b/arch/ia64/include/asm/elf.h
5196@@ -42,6 +42,13 @@
5197 */
5198 #define ELF_ET_DYN_BASE (TASK_UNMAPPED_BASE + 0x800000000UL)
5199
5200+#ifdef CONFIG_PAX_ASLR
5201+#define PAX_ELF_ET_DYN_BASE (current->personality == PER_LINUX32 ? 0x08048000UL : 0x4000000000000000UL)
5202+
5203+#define PAX_DELTA_MMAP_LEN (current->personality == PER_LINUX32 ? 16 : 3*PAGE_SHIFT - 13)
5204+#define PAX_DELTA_STACK_LEN (current->personality == PER_LINUX32 ? 16 : 3*PAGE_SHIFT - 13)
5205+#endif
5206+
5207 #define PT_IA_64_UNWIND 0x70000001
5208
5209 /* IA-64 relocations: */
5210diff --git a/arch/ia64/include/asm/pgalloc.h b/arch/ia64/include/asm/pgalloc.h
5211index 5767cdf..7462574 100644
5212--- a/arch/ia64/include/asm/pgalloc.h
5213+++ b/arch/ia64/include/asm/pgalloc.h
5214@@ -39,6 +39,12 @@ pgd_populate(struct mm_struct *mm, pgd_t * pgd_entry, pud_t * pud)
5215 pgd_val(*pgd_entry) = __pa(pud);
5216 }
5217
5218+static inline void
5219+pgd_populate_kernel(struct mm_struct *mm, pgd_t * pgd_entry, pud_t * pud)
5220+{
5221+ pgd_populate(mm, pgd_entry, pud);
5222+}
5223+
5224 static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr)
5225 {
5226 return quicklist_alloc(0, GFP_KERNEL, NULL);
5227@@ -57,6 +63,12 @@ pud_populate(struct mm_struct *mm, pud_t * pud_entry, pmd_t * pmd)
5228 pud_val(*pud_entry) = __pa(pmd);
5229 }
5230
5231+static inline void
5232+pud_populate_kernel(struct mm_struct *mm, pud_t * pud_entry, pmd_t * pmd)
5233+{
5234+ pud_populate(mm, pud_entry, pmd);
5235+}
5236+
5237 static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr)
5238 {
5239 return quicklist_alloc(0, GFP_KERNEL, NULL);
5240diff --git a/arch/ia64/include/asm/pgtable.h b/arch/ia64/include/asm/pgtable.h
5241index 7b6f880..ac8e008 100644
5242--- a/arch/ia64/include/asm/pgtable.h
5243+++ b/arch/ia64/include/asm/pgtable.h
5244@@ -12,7 +12,7 @@
5245 * David Mosberger-Tang <davidm@hpl.hp.com>
5246 */
5247
5248-
5249+#include <linux/const.h>
5250 #include <asm/mman.h>
5251 #include <asm/page.h>
5252 #include <asm/processor.h>
5253@@ -139,6 +139,17 @@
5254 #define PAGE_READONLY __pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_R)
5255 #define PAGE_COPY __pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_R)
5256 #define PAGE_COPY_EXEC __pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_RX)
5257+
5258+#ifdef CONFIG_PAX_PAGEEXEC
5259+# define PAGE_SHARED_NOEXEC __pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_RW)
5260+# define PAGE_READONLY_NOEXEC __pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_R)
5261+# define PAGE_COPY_NOEXEC __pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_R)
5262+#else
5263+# define PAGE_SHARED_NOEXEC PAGE_SHARED
5264+# define PAGE_READONLY_NOEXEC PAGE_READONLY
5265+# define PAGE_COPY_NOEXEC PAGE_COPY
5266+#endif
5267+
5268 #define PAGE_GATE __pgprot(__ACCESS_BITS | _PAGE_PL_0 | _PAGE_AR_X_RX)
5269 #define PAGE_KERNEL __pgprot(__DIRTY_BITS | _PAGE_PL_0 | _PAGE_AR_RWX)
5270 #define PAGE_KERNELRX __pgprot(__ACCESS_BITS | _PAGE_PL_0 | _PAGE_AR_RX)
5271diff --git a/arch/ia64/include/asm/spinlock.h b/arch/ia64/include/asm/spinlock.h
5272index 45698cd..e8e2dbc 100644
5273--- a/arch/ia64/include/asm/spinlock.h
5274+++ b/arch/ia64/include/asm/spinlock.h
5275@@ -71,7 +71,7 @@ static __always_inline void __ticket_spin_unlock(arch_spinlock_t *lock)
5276 unsigned short *p = (unsigned short *)&lock->lock + 1, tmp;
5277
5278 asm volatile ("ld2.bias %0=[%1]" : "=r"(tmp) : "r"(p));
5279- ACCESS_ONCE(*p) = (tmp + 2) & ~1;
5280+ ACCESS_ONCE_RW(*p) = (tmp + 2) & ~1;
5281 }
5282
5283 static __always_inline void __ticket_spin_unlock_wait(arch_spinlock_t *lock)
5284diff --git a/arch/ia64/include/asm/uaccess.h b/arch/ia64/include/asm/uaccess.h
5285index 4f3fb6cc..254055e 100644
5286--- a/arch/ia64/include/asm/uaccess.h
5287+++ b/arch/ia64/include/asm/uaccess.h
5288@@ -70,6 +70,7 @@
5289 && ((segment).seg == KERNEL_DS.seg \
5290 || likely(REGION_OFFSET((unsigned long) (addr)) < RGN_MAP_LIMIT))); \
5291 })
5292+#define access_ok_noprefault(type, addr, size) access_ok((type), (addr), (size))
5293 #define access_ok(type, addr, size) __access_ok((addr), (size), get_fs())
5294
5295 /*
5296@@ -241,12 +242,24 @@ extern unsigned long __must_check __copy_user (void __user *to, const void __use
5297 static inline unsigned long
5298 __copy_to_user (void __user *to, const void *from, unsigned long count)
5299 {
5300+ if (count > INT_MAX)
5301+ return count;
5302+
5303+ if (!__builtin_constant_p(count))
5304+ check_object_size(from, count, true);
5305+
5306 return __copy_user(to, (__force void __user *) from, count);
5307 }
5308
5309 static inline unsigned long
5310 __copy_from_user (void *to, const void __user *from, unsigned long count)
5311 {
5312+ if (count > INT_MAX)
5313+ return count;
5314+
5315+ if (!__builtin_constant_p(count))
5316+ check_object_size(to, count, false);
5317+
5318 return __copy_user((__force void __user *) to, from, count);
5319 }
5320
5321@@ -256,10 +269,13 @@ __copy_from_user (void *to, const void __user *from, unsigned long count)
5322 ({ \
5323 void __user *__cu_to = (to); \
5324 const void *__cu_from = (from); \
5325- long __cu_len = (n); \
5326+ unsigned long __cu_len = (n); \
5327 \
5328- if (__access_ok(__cu_to, __cu_len, get_fs())) \
5329+ if (__cu_len <= INT_MAX && __access_ok(__cu_to, __cu_len, get_fs())) { \
5330+ if (!__builtin_constant_p(n)) \
5331+ check_object_size(__cu_from, __cu_len, true); \
5332 __cu_len = __copy_user(__cu_to, (__force void __user *) __cu_from, __cu_len); \
5333+ } \
5334 __cu_len; \
5335 })
5336
5337@@ -267,11 +283,14 @@ __copy_from_user (void *to, const void __user *from, unsigned long count)
5338 ({ \
5339 void *__cu_to = (to); \
5340 const void __user *__cu_from = (from); \
5341- long __cu_len = (n); \
5342+ unsigned long __cu_len = (n); \
5343 \
5344 __chk_user_ptr(__cu_from); \
5345- if (__access_ok(__cu_from, __cu_len, get_fs())) \
5346+ if (__cu_len <= INT_MAX && __access_ok(__cu_from, __cu_len, get_fs())) { \
5347+ if (!__builtin_constant_p(n)) \
5348+ check_object_size(__cu_to, __cu_len, false); \
5349 __cu_len = __copy_user((__force void __user *) __cu_to, __cu_from, __cu_len); \
5350+ } \
5351 __cu_len; \
5352 })
5353
5354diff --git a/arch/ia64/kernel/module.c b/arch/ia64/kernel/module.c
5355index 29754aa..06d2838 100644
5356--- a/arch/ia64/kernel/module.c
5357+++ b/arch/ia64/kernel/module.c
5358@@ -492,15 +492,39 @@ module_frob_arch_sections (Elf_Ehdr *ehdr, Elf_Shdr *sechdrs, char *secstrings,
5359 }
5360
5361 static inline int
5362+in_init_rx (const struct module *mod, uint64_t addr)
5363+{
5364+ return addr - (uint64_t) mod->module_init_rx < mod->init_size_rx;
5365+}
5366+
5367+static inline int
5368+in_init_rw (const struct module *mod, uint64_t addr)
5369+{
5370+ return addr - (uint64_t) mod->module_init_rw < mod->init_size_rw;
5371+}
5372+
5373+static inline int
5374 in_init (const struct module *mod, uint64_t addr)
5375 {
5376- return addr - (uint64_t) mod->module_init < mod->init_size;
5377+ return in_init_rx(mod, addr) || in_init_rw(mod, addr);
5378+}
5379+
5380+static inline int
5381+in_core_rx (const struct module *mod, uint64_t addr)
5382+{
5383+ return addr - (uint64_t) mod->module_core_rx < mod->core_size_rx;
5384+}
5385+
5386+static inline int
5387+in_core_rw (const struct module *mod, uint64_t addr)
5388+{
5389+ return addr - (uint64_t) mod->module_core_rw < mod->core_size_rw;
5390 }
5391
5392 static inline int
5393 in_core (const struct module *mod, uint64_t addr)
5394 {
5395- return addr - (uint64_t) mod->module_core < mod->core_size;
5396+ return in_core_rx(mod, addr) || in_core_rw(mod, addr);
5397 }
5398
5399 static inline int
5400@@ -683,7 +707,14 @@ do_reloc (struct module *mod, uint8_t r_type, Elf64_Sym *sym, uint64_t addend,
5401 break;
5402
5403 case RV_BDREL:
5404- val -= (uint64_t) (in_init(mod, val) ? mod->module_init : mod->module_core);
5405+ if (in_init_rx(mod, val))
5406+ val -= (uint64_t) mod->module_init_rx;
5407+ else if (in_init_rw(mod, val))
5408+ val -= (uint64_t) mod->module_init_rw;
5409+ else if (in_core_rx(mod, val))
5410+ val -= (uint64_t) mod->module_core_rx;
5411+ else if (in_core_rw(mod, val))
5412+ val -= (uint64_t) mod->module_core_rw;
5413 break;
5414
5415 case RV_LTV:
5416@@ -818,15 +849,15 @@ apply_relocate_add (Elf64_Shdr *sechdrs, const char *strtab, unsigned int symind
5417 * addresses have been selected...
5418 */
5419 uint64_t gp;
5420- if (mod->core_size > MAX_LTOFF)
5421+ if (mod->core_size_rx + mod->core_size_rw > MAX_LTOFF)
5422 /*
5423 * This takes advantage of fact that SHF_ARCH_SMALL gets allocated
5424 * at the end of the module.
5425 */
5426- gp = mod->core_size - MAX_LTOFF / 2;
5427+ gp = mod->core_size_rx + mod->core_size_rw - MAX_LTOFF / 2;
5428 else
5429- gp = mod->core_size / 2;
5430- gp = (uint64_t) mod->module_core + ((gp + 7) & -8);
5431+ gp = (mod->core_size_rx + mod->core_size_rw) / 2;
5432+ gp = (uint64_t) mod->module_core_rx + ((gp + 7) & -8);
5433 mod->arch.gp = gp;
5434 DEBUGP("%s: placing gp at 0x%lx\n", __func__, gp);
5435 }
5436diff --git a/arch/ia64/kernel/palinfo.c b/arch/ia64/kernel/palinfo.c
5437index c39c3cd..3c77738 100644
5438--- a/arch/ia64/kernel/palinfo.c
5439+++ b/arch/ia64/kernel/palinfo.c
5440@@ -980,7 +980,7 @@ static int palinfo_cpu_callback(struct notifier_block *nfb,
5441 return NOTIFY_OK;
5442 }
5443
5444-static struct notifier_block __refdata palinfo_cpu_notifier =
5445+static struct notifier_block palinfo_cpu_notifier =
5446 {
5447 .notifier_call = palinfo_cpu_callback,
5448 .priority = 0,
5449diff --git a/arch/ia64/kernel/sys_ia64.c b/arch/ia64/kernel/sys_ia64.c
5450index 41e33f8..65180b2a 100644
5451--- a/arch/ia64/kernel/sys_ia64.c
5452+++ b/arch/ia64/kernel/sys_ia64.c
5453@@ -28,6 +28,7 @@ arch_get_unmapped_area (struct file *filp, unsigned long addr, unsigned long len
5454 unsigned long align_mask = 0;
5455 struct mm_struct *mm = current->mm;
5456 struct vm_unmapped_area_info info;
5457+ unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
5458
5459 if (len > RGN_MAP_LIMIT)
5460 return -ENOMEM;
5461@@ -43,6 +44,13 @@ arch_get_unmapped_area (struct file *filp, unsigned long addr, unsigned long len
5462 if (REGION_NUMBER(addr) == RGN_HPAGE)
5463 addr = 0;
5464 #endif
5465+
5466+#ifdef CONFIG_PAX_RANDMMAP
5467+ if (mm->pax_flags & MF_PAX_RANDMMAP)
5468+ addr = mm->free_area_cache;
5469+ else
5470+#endif
5471+
5472 if (!addr)
5473 addr = TASK_UNMAPPED_BASE;
5474
5475@@ -61,6 +69,7 @@ arch_get_unmapped_area (struct file *filp, unsigned long addr, unsigned long len
5476 info.high_limit = TASK_SIZE;
5477 info.align_mask = align_mask;
5478 info.align_offset = 0;
5479+ info.threadstack_offset = offset;
5480 return vm_unmapped_area(&info);
5481 }
5482
5483diff --git a/arch/ia64/kernel/vmlinux.lds.S b/arch/ia64/kernel/vmlinux.lds.S
5484index 84f8a52..7c76178 100644
5485--- a/arch/ia64/kernel/vmlinux.lds.S
5486+++ b/arch/ia64/kernel/vmlinux.lds.S
5487@@ -192,7 +192,7 @@ SECTIONS {
5488 /* Per-cpu data: */
5489 . = ALIGN(PERCPU_PAGE_SIZE);
5490 PERCPU_VADDR(SMP_CACHE_BYTES, PERCPU_ADDR, :percpu)
5491- __phys_per_cpu_start = __per_cpu_load;
5492+ __phys_per_cpu_start = per_cpu_load;
5493 /*
5494 * ensure percpu data fits
5495 * into percpu page size
5496diff --git a/arch/ia64/mm/fault.c b/arch/ia64/mm/fault.c
5497index ba5ba7a..36e9d3a 100644
5498--- a/arch/ia64/mm/fault.c
5499+++ b/arch/ia64/mm/fault.c
5500@@ -72,6 +72,23 @@ mapped_kernel_page_is_present (unsigned long address)
5501 return pte_present(pte);
5502 }
5503
5504+#ifdef CONFIG_PAX_PAGEEXEC
5505+void pax_report_insns(struct pt_regs *regs, void *pc, void *sp)
5506+{
5507+ unsigned long i;
5508+
5509+ printk(KERN_ERR "PAX: bytes at PC: ");
5510+ for (i = 0; i < 8; i++) {
5511+ unsigned int c;
5512+ if (get_user(c, (unsigned int *)pc+i))
5513+ printk(KERN_CONT "???????? ");
5514+ else
5515+ printk(KERN_CONT "%08x ", c);
5516+ }
5517+ printk("\n");
5518+}
5519+#endif
5520+
5521 # define VM_READ_BIT 0
5522 # define VM_WRITE_BIT 1
5523 # define VM_EXEC_BIT 2
5524@@ -151,8 +168,21 @@ retry:
5525 if (((isr >> IA64_ISR_R_BIT) & 1UL) && (!(vma->vm_flags & (VM_READ | VM_WRITE))))
5526 goto bad_area;
5527
5528- if ((vma->vm_flags & mask) != mask)
5529+ if ((vma->vm_flags & mask) != mask) {
5530+
5531+#ifdef CONFIG_PAX_PAGEEXEC
5532+ if (!(vma->vm_flags & VM_EXEC) && (mask & VM_EXEC)) {
5533+ if (!(mm->pax_flags & MF_PAX_PAGEEXEC) || address != regs->cr_iip)
5534+ goto bad_area;
5535+
5536+ up_read(&mm->mmap_sem);
5537+ pax_report_fault(regs, (void *)regs->cr_iip, (void *)regs->r12);
5538+ do_group_exit(SIGKILL);
5539+ }
5540+#endif
5541+
5542 goto bad_area;
5543+ }
5544
5545 /*
5546 * If for any reason at all we couldn't handle the fault, make
5547diff --git a/arch/ia64/mm/hugetlbpage.c b/arch/ia64/mm/hugetlbpage.c
5548index 52b7604b..455cb85 100644
5549--- a/arch/ia64/mm/hugetlbpage.c
5550+++ b/arch/ia64/mm/hugetlbpage.c
5551@@ -143,6 +143,7 @@ unsigned long hugetlb_get_unmapped_area(struct file *file, unsigned long addr, u
5552 unsigned long pgoff, unsigned long flags)
5553 {
5554 struct vm_unmapped_area_info info;
5555+ unsigned long offset = gr_rand_threadstack_offset(current->mm, file, flags);
5556
5557 if (len > RGN_MAP_LIMIT)
5558 return -ENOMEM;
5559@@ -166,6 +167,7 @@ unsigned long hugetlb_get_unmapped_area(struct file *file, unsigned long addr, u
5560 info.high_limit = HPAGE_REGION_BASE + RGN_MAP_LIMIT;
5561 info.align_mask = PAGE_MASK & (HPAGE_SIZE - 1);
5562 info.align_offset = 0;
5563+ info.threadstack_offset = offset;
5564 return vm_unmapped_area(&info);
5565 }
5566
5567diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c
5568index 6b33457..88b5124 100644
5569--- a/arch/ia64/mm/init.c
5570+++ b/arch/ia64/mm/init.c
5571@@ -120,6 +120,19 @@ ia64_init_addr_space (void)
5572 vma->vm_start = current->thread.rbs_bot & PAGE_MASK;
5573 vma->vm_end = vma->vm_start + PAGE_SIZE;
5574 vma->vm_flags = VM_DATA_DEFAULT_FLAGS|VM_GROWSUP|VM_ACCOUNT;
5575+
5576+#ifdef CONFIG_PAX_PAGEEXEC
5577+ if (current->mm->pax_flags & MF_PAX_PAGEEXEC) {
5578+ vma->vm_flags &= ~VM_EXEC;
5579+
5580+#ifdef CONFIG_PAX_MPROTECT
5581+ if (current->mm->pax_flags & MF_PAX_MPROTECT)
5582+ vma->vm_flags &= ~VM_MAYEXEC;
5583+#endif
5584+
5585+ }
5586+#endif
5587+
5588 vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
5589 down_write(&current->mm->mmap_sem);
5590 if (insert_vm_struct(current->mm, vma)) {
5591@@ -286,7 +299,7 @@ static int __init gate_vma_init(void)
5592 gate_vma.vm_start = FIXADDR_USER_START;
5593 gate_vma.vm_end = FIXADDR_USER_END;
5594 gate_vma.vm_flags = VM_READ | VM_MAYREAD | VM_EXEC | VM_MAYEXEC;
5595- gate_vma.vm_page_prot = __P101;
5596+ gate_vma.vm_page_prot = vm_get_page_prot(gate_vma.vm_flags);
5597
5598 return 0;
5599 }
5600diff --git a/arch/m32r/include/asm/cache.h b/arch/m32r/include/asm/cache.h
5601index 40b3ee98..8c2c112 100644
5602--- a/arch/m32r/include/asm/cache.h
5603+++ b/arch/m32r/include/asm/cache.h
5604@@ -1,8 +1,10 @@
5605 #ifndef _ASM_M32R_CACHE_H
5606 #define _ASM_M32R_CACHE_H
5607
5608+#include <linux/const.h>
5609+
5610 /* L1 cache line size */
5611 #define L1_CACHE_SHIFT 4
5612-#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
5613+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
5614
5615 #endif /* _ASM_M32R_CACHE_H */
5616diff --git a/arch/m32r/lib/usercopy.c b/arch/m32r/lib/usercopy.c
5617index 82abd15..d95ae5d 100644
5618--- a/arch/m32r/lib/usercopy.c
5619+++ b/arch/m32r/lib/usercopy.c
5620@@ -14,6 +14,9 @@
5621 unsigned long
5622 __generic_copy_to_user(void __user *to, const void *from, unsigned long n)
5623 {
5624+ if ((long)n < 0)
5625+ return n;
5626+
5627 prefetch(from);
5628 if (access_ok(VERIFY_WRITE, to, n))
5629 __copy_user(to,from,n);
5630@@ -23,6 +26,9 @@ __generic_copy_to_user(void __user *to, const void *from, unsigned long n)
5631 unsigned long
5632 __generic_copy_from_user(void *to, const void __user *from, unsigned long n)
5633 {
5634+ if ((long)n < 0)
5635+ return n;
5636+
5637 prefetchw(to);
5638 if (access_ok(VERIFY_READ, from, n))
5639 __copy_user_zeroing(to,from,n);
5640diff --git a/arch/m68k/include/asm/cache.h b/arch/m68k/include/asm/cache.h
5641index 0395c51..5f26031 100644
5642--- a/arch/m68k/include/asm/cache.h
5643+++ b/arch/m68k/include/asm/cache.h
5644@@ -4,9 +4,11 @@
5645 #ifndef __ARCH_M68K_CACHE_H
5646 #define __ARCH_M68K_CACHE_H
5647
5648+#include <linux/const.h>
5649+
5650 /* bytes per L1 cache line */
5651 #define L1_CACHE_SHIFT 4
5652-#define L1_CACHE_BYTES (1<< L1_CACHE_SHIFT)
5653+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
5654
5655 #define ARCH_DMA_MINALIGN L1_CACHE_BYTES
5656
5657diff --git a/arch/metag/include/asm/barrier.h b/arch/metag/include/asm/barrier.h
5658index d703d8e..a8e2d70 100644
5659--- a/arch/metag/include/asm/barrier.h
5660+++ b/arch/metag/include/asm/barrier.h
5661@@ -90,7 +90,7 @@ static inline void fence(void)
5662 do { \
5663 compiletime_assert_atomic_type(*p); \
5664 smp_mb(); \
5665- ACCESS_ONCE(*p) = (v); \
5666+ ACCESS_ONCE_RW(*p) = (v); \
5667 } while (0)
5668
5669 #define smp_load_acquire(p) \
5670diff --git a/arch/metag/mm/hugetlbpage.c b/arch/metag/mm/hugetlbpage.c
5671index 7ca80ac..794ba72 100644
5672--- a/arch/metag/mm/hugetlbpage.c
5673+++ b/arch/metag/mm/hugetlbpage.c
5674@@ -194,6 +194,7 @@ hugetlb_get_unmapped_area_new_pmd(unsigned long len)
5675 info.high_limit = TASK_SIZE;
5676 info.align_mask = PAGE_MASK & HUGEPT_MASK;
5677 info.align_offset = 0;
5678+ info.threadstack_offset = 0;
5679 return vm_unmapped_area(&info);
5680 }
5681
5682diff --git a/arch/microblaze/include/asm/cache.h b/arch/microblaze/include/asm/cache.h
5683index 4efe96a..60e8699 100644
5684--- a/arch/microblaze/include/asm/cache.h
5685+++ b/arch/microblaze/include/asm/cache.h
5686@@ -13,11 +13,12 @@
5687 #ifndef _ASM_MICROBLAZE_CACHE_H
5688 #define _ASM_MICROBLAZE_CACHE_H
5689
5690+#include <linux/const.h>
5691 #include <asm/registers.h>
5692
5693 #define L1_CACHE_SHIFT 5
5694 /* word-granular cache in microblaze */
5695-#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
5696+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
5697
5698 #define SMP_CACHE_BYTES L1_CACHE_BYTES
5699
5700diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
5701index 1a313c4..f27b613 100644
5702--- a/arch/mips/Kconfig
5703+++ b/arch/mips/Kconfig
5704@@ -2504,6 +2504,7 @@ source "kernel/Kconfig.preempt"
5705
5706 config KEXEC
5707 bool "Kexec system call"
5708+ depends on !GRKERNSEC_KMEM
5709 help
5710 kexec is a system call that implements the ability to shutdown your
5711 current kernel, and to start another kernel. It is like a reboot
5712diff --git a/arch/mips/cavium-octeon/dma-octeon.c b/arch/mips/cavium-octeon/dma-octeon.c
5713index d8960d4..77dbd31 100644
5714--- a/arch/mips/cavium-octeon/dma-octeon.c
5715+++ b/arch/mips/cavium-octeon/dma-octeon.c
5716@@ -199,7 +199,7 @@ static void octeon_dma_free_coherent(struct device *dev, size_t size,
5717 if (dma_release_from_coherent(dev, order, vaddr))
5718 return;
5719
5720- swiotlb_free_coherent(dev, size, vaddr, dma_handle);
5721+ swiotlb_free_coherent(dev, size, vaddr, dma_handle, attrs);
5722 }
5723
5724 static dma_addr_t octeon_unity_phys_to_dma(struct device *dev, phys_addr_t paddr)
5725diff --git a/arch/mips/include/asm/atomic.h b/arch/mips/include/asm/atomic.h
5726index 26d4363..3c9a82e 100644
5727--- a/arch/mips/include/asm/atomic.h
5728+++ b/arch/mips/include/asm/atomic.h
5729@@ -22,15 +22,39 @@
5730 #include <asm/cmpxchg.h>
5731 #include <asm/war.h>
5732
5733+#ifdef CONFIG_GENERIC_ATOMIC64
5734+#include <asm-generic/atomic64.h>
5735+#endif
5736+
5737 #define ATOMIC_INIT(i) { (i) }
5738
5739+#ifdef CONFIG_64BIT
5740+#define _ASM_EXTABLE(from, to) \
5741+" .section __ex_table,\"a\"\n" \
5742+" .dword " #from ", " #to"\n" \
5743+" .previous\n"
5744+#else
5745+#define _ASM_EXTABLE(from, to) \
5746+" .section __ex_table,\"a\"\n" \
5747+" .word " #from ", " #to"\n" \
5748+" .previous\n"
5749+#endif
5750+
5751 /*
5752 * atomic_read - read atomic variable
5753 * @v: pointer of type atomic_t
5754 *
5755 * Atomically reads the value of @v.
5756 */
5757-#define atomic_read(v) ACCESS_ONCE((v)->counter)
5758+static inline int atomic_read(const atomic_t *v)
5759+{
5760+ return ACCESS_ONCE(v->counter);
5761+}
5762+
5763+static inline int atomic_read_unchecked(const atomic_unchecked_t *v)
5764+{
5765+ return ACCESS_ONCE(v->counter);
5766+}
5767
5768 /*
5769 * atomic_set - set atomic variable
5770@@ -39,47 +63,77 @@
5771 *
5772 * Atomically sets the value of @v to @i.
5773 */
5774-#define atomic_set(v, i) ((v)->counter = (i))
5775+static inline void atomic_set(atomic_t *v, int i)
5776+{
5777+ v->counter = i;
5778+}
5779
5780-#define ATOMIC_OP(op, c_op, asm_op) \
5781-static __inline__ void atomic_##op(int i, atomic_t * v) \
5782+static inline void atomic_set_unchecked(atomic_unchecked_t *v, int i)
5783+{
5784+ v->counter = i;
5785+}
5786+
5787+#ifdef CONFIG_PAX_REFCOUNT
5788+#define __OVERFLOW_POST \
5789+ " b 4f \n" \
5790+ " .set noreorder \n" \
5791+ "3: b 5f \n" \
5792+ " move %0, %1 \n" \
5793+ " .set reorder \n"
5794+#define __OVERFLOW_EXTABLE \
5795+ "3:\n" \
5796+ _ASM_EXTABLE(2b, 3b)
5797+#else
5798+#define __OVERFLOW_POST
5799+#define __OVERFLOW_EXTABLE
5800+#endif
5801+
5802+#define __ATOMIC_OP(op, suffix, asm_op, extable) \
5803+static inline void atomic_##op##suffix(int i, atomic##suffix##_t * v) \
5804 { \
5805 if (kernel_uses_llsc && R10000_LLSC_WAR) { \
5806 int temp; \
5807 \
5808 __asm__ __volatile__( \
5809- " .set arch=r4000 \n" \
5810- "1: ll %0, %1 # atomic_" #op " \n" \
5811- " " #asm_op " %0, %2 \n" \
5812+ " .set mips3 \n" \
5813+ "1: ll %0, %1 # atomic_" #op #suffix "\n" \
5814+ "2: " #asm_op " %0, %2 \n" \
5815 " sc %0, %1 \n" \
5816 " beqzl %0, 1b \n" \
5817+ extable \
5818 " .set mips0 \n" \
5819 : "=&r" (temp), "+" GCC_OFF_SMALL_ASM() (v->counter) \
5820 : "Ir" (i)); \
5821 } else if (kernel_uses_llsc) { \
5822 int temp; \
5823 \
5824- do { \
5825- __asm__ __volatile__( \
5826- " .set "MIPS_ISA_LEVEL" \n" \
5827- " ll %0, %1 # atomic_" #op "\n" \
5828- " " #asm_op " %0, %2 \n" \
5829- " sc %0, %1 \n" \
5830- " .set mips0 \n" \
5831- : "=&r" (temp), "+" GCC_OFF_SMALL_ASM() (v->counter) \
5832- : "Ir" (i)); \
5833- } while (unlikely(!temp)); \
5834+ __asm__ __volatile__( \
5835+ " .set "MIPS_ISA_LEVEL" \n" \
5836+ "1: ll %0, %1 # atomic_" #op #suffix "\n" \
5837+ "2: " #asm_op " %0, %2 \n" \
5838+ " sc %0, %1 \n" \
5839+ " beqz %0, 1b \n" \
5840+ extable \
5841+ " .set mips0 \n" \
5842+ : "=&r" (temp), "+" GCC_OFF_SMALL_ASM() (v->counter) \
5843+ : "Ir" (i)); \
5844 } else { \
5845 unsigned long flags; \
5846 \
5847 raw_local_irq_save(flags); \
5848- v->counter c_op i; \
5849+ __asm__ __volatile__( \
5850+ "2: " #asm_op " %0, %1 \n" \
5851+ extable \
5852+ : "+r" (v->counter) : "Ir" (i)); \
5853 raw_local_irq_restore(flags); \
5854 } \
5855 }
5856
5857-#define ATOMIC_OP_RETURN(op, c_op, asm_op) \
5858-static __inline__ int atomic_##op##_return(int i, atomic_t * v) \
5859+#define ATOMIC_OP(op, asm_op) __ATOMIC_OP(op, _unchecked, asm_op##u, ) \
5860+ __ATOMIC_OP(op, , asm_op, __OVERFLOW_EXTABLE)
5861+
5862+#define __ATOMIC_OP_RETURN(op, suffix, asm_op, post_op, extable) \
5863+static inline int atomic_##op##_return##suffix(int i, atomic##suffix##_t * v) \
5864 { \
5865 int result; \
5866 \
5867@@ -89,12 +143,15 @@ static __inline__ int atomic_##op##_return(int i, atomic_t * v) \
5868 int temp; \
5869 \
5870 __asm__ __volatile__( \
5871- " .set arch=r4000 \n" \
5872- "1: ll %1, %2 # atomic_" #op "_return \n" \
5873- " " #asm_op " %0, %1, %3 \n" \
5874+ " .set mips3 \n" \
5875+ "1: ll %1, %2 # atomic_" #op "_return" #suffix"\n" \
5876+ "2: " #asm_op " %0, %1, %3 \n" \
5877 " sc %0, %2 \n" \
5878 " beqzl %0, 1b \n" \
5879- " " #asm_op " %0, %1, %3 \n" \
5880+ post_op \
5881+ extable \
5882+ "4: " #asm_op " %0, %1, %3 \n" \
5883+ "5: \n" \
5884 " .set mips0 \n" \
5885 : "=&r" (result), "=&r" (temp), \
5886 "+" GCC_OFF_SMALL_ASM() (v->counter) \
5887@@ -102,26 +159,33 @@ static __inline__ int atomic_##op##_return(int i, atomic_t * v) \
5888 } else if (kernel_uses_llsc) { \
5889 int temp; \
5890 \
5891- do { \
5892- __asm__ __volatile__( \
5893- " .set "MIPS_ISA_LEVEL" \n" \
5894- " ll %1, %2 # atomic_" #op "_return \n" \
5895- " " #asm_op " %0, %1, %3 \n" \
5896- " sc %0, %2 \n" \
5897- " .set mips0 \n" \
5898- : "=&r" (result), "=&r" (temp), \
5899- "+" GCC_OFF_SMALL_ASM() (v->counter) \
5900- : "Ir" (i)); \
5901- } while (unlikely(!result)); \
5902+ __asm__ __volatile__( \
5903+ " .set "MIPS_ISA_LEVEL" \n" \
5904+ "1: ll %1, %2 # atomic_" #op "_return" #suffix "\n" \
5905+ "2: " #asm_op " %0, %1, %3 \n" \
5906+ " sc %0, %2 \n" \
5907+ post_op \
5908+ extable \
5909+ "4: " #asm_op " %0, %1, %3 \n" \
5910+ "5: \n" \
5911+ " .set mips0 \n" \
5912+ : "=&r" (result), "=&r" (temp), \
5913+ "+" GCC_OFF_SMALL_ASM() (v->counter) \
5914+ : "Ir" (i)); \
5915 \
5916 result = temp; result c_op i; \
5917 } else { \
5918 unsigned long flags; \
5919 \
5920 raw_local_irq_save(flags); \
5921- result = v->counter; \
5922- result c_op i; \
5923- v->counter = result; \
5924+ __asm__ __volatile__( \
5925+ " lw %0, %1 \n" \
5926+ "2: " #asm_op " %0, %1, %2 \n" \
5927+ " sw %0, %1 \n" \
5928+ "3: \n" \
5929+ extable \
5930+ : "=&r" (result), "+" GCC_OFF_SMALL_ASM() (v->counter) \
5931+ : "Ir" (i)); \
5932 raw_local_irq_restore(flags); \
5933 } \
5934 \
5935@@ -130,16 +194,21 @@ static __inline__ int atomic_##op##_return(int i, atomic_t * v) \
5936 return result; \
5937 }
5938
5939-#define ATOMIC_OPS(op, c_op, asm_op) \
5940- ATOMIC_OP(op, c_op, asm_op) \
5941- ATOMIC_OP_RETURN(op, c_op, asm_op)
5942+#define ATOMIC_OP_RETURN(op, asm_op) __ATOMIC_OP_RETURN(op, _unchecked, asm_op##u, , ) \
5943+ __ATOMIC_OP_RETURN(op, , asm_op, __OVERFLOW_POST, __OVERFLOW_EXTABLE)
5944
5945-ATOMIC_OPS(add, +=, addu)
5946-ATOMIC_OPS(sub, -=, subu)
5947+#define ATOMIC_OPS(op, asm_op) \
5948+ ATOMIC_OP(op, asm_op) \
5949+ ATOMIC_OP_RETURN(op, asm_op)
5950+
5951+ATOMIC_OPS(add, add)
5952+ATOMIC_OPS(sub, sub)
5953
5954 #undef ATOMIC_OPS
5955 #undef ATOMIC_OP_RETURN
5956+#undef __ATOMIC_OP_RETURN
5957 #undef ATOMIC_OP
5958+#undef __ATOMIC_OP
5959
5960 /*
5961 * atomic_sub_if_positive - conditionally subtract integer from atomic variable
5962@@ -149,7 +218,7 @@ ATOMIC_OPS(sub, -=, subu)
5963 * Atomically test @v and subtract @i if @v is greater or equal than @i.
5964 * The function returns the old value of @v minus @i.
5965 */
5966-static __inline__ int atomic_sub_if_positive(int i, atomic_t * v)
5967+static __inline__ int atomic_sub_if_positive(int i, atomic_t *v)
5968 {
5969 int result;
5970
5971@@ -159,7 +228,7 @@ static __inline__ int atomic_sub_if_positive(int i, atomic_t * v)
5972 int temp;
5973
5974 __asm__ __volatile__(
5975- " .set arch=r4000 \n"
5976+ " .set "MIPS_ISA_LEVEL" \n"
5977 "1: ll %1, %2 # atomic_sub_if_positive\n"
5978 " subu %0, %1, %3 \n"
5979 " bltz %0, 1f \n"
5980@@ -208,8 +277,26 @@ static __inline__ int atomic_sub_if_positive(int i, atomic_t * v)
5981 return result;
5982 }
5983
5984-#define atomic_cmpxchg(v, o, n) (cmpxchg(&((v)->counter), (o), (n)))
5985-#define atomic_xchg(v, new) (xchg(&((v)->counter), (new)))
5986+static inline int atomic_cmpxchg(atomic_t *v, int old, int new)
5987+{
5988+ return cmpxchg(&v->counter, old, new);
5989+}
5990+
5991+static inline int atomic_cmpxchg_unchecked(atomic_unchecked_t *v, int old,
5992+ int new)
5993+{
5994+ return cmpxchg(&(v->counter), old, new);
5995+}
5996+
5997+static inline int atomic_xchg(atomic_t *v, int new)
5998+{
5999+ return xchg(&v->counter, new);
6000+}
6001+
6002+static inline int atomic_xchg_unchecked(atomic_unchecked_t *v, int new)
6003+{
6004+ return xchg(&(v->counter), new);
6005+}
6006
6007 /**
6008 * __atomic_add_unless - add unless the number is a given value
6009@@ -237,6 +324,10 @@ static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u)
6010
6011 #define atomic_dec_return(v) atomic_sub_return(1, (v))
6012 #define atomic_inc_return(v) atomic_add_return(1, (v))
6013+static __inline__ int atomic_inc_return_unchecked(atomic_unchecked_t *v)
6014+{
6015+ return atomic_add_return_unchecked(1, v);
6016+}
6017
6018 /*
6019 * atomic_sub_and_test - subtract value from variable and test result
6020@@ -258,6 +349,10 @@ static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u)
6021 * other cases.
6022 */
6023 #define atomic_inc_and_test(v) (atomic_inc_return(v) == 0)
6024+static __inline__ int atomic_inc_and_test_unchecked(atomic_unchecked_t *v)
6025+{
6026+ return atomic_add_return_unchecked(1, v) == 0;
6027+}
6028
6029 /*
6030 * atomic_dec_and_test - decrement by 1 and test
6031@@ -282,6 +377,10 @@ static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u)
6032 * Atomically increments @v by 1.
6033 */
6034 #define atomic_inc(v) atomic_add(1, (v))
6035+static __inline__ void atomic_inc_unchecked(atomic_unchecked_t *v)
6036+{
6037+ atomic_add_unchecked(1, v);
6038+}
6039
6040 /*
6041 * atomic_dec - decrement and test
6042@@ -290,6 +389,10 @@ static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u)
6043 * Atomically decrements @v by 1.
6044 */
6045 #define atomic_dec(v) atomic_sub(1, (v))
6046+static __inline__ void atomic_dec_unchecked(atomic_unchecked_t *v)
6047+{
6048+ atomic_sub_unchecked(1, v);
6049+}
6050
6051 /*
6052 * atomic_add_negative - add and test if negative
6053@@ -311,54 +414,77 @@ static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u)
6054 * @v: pointer of type atomic64_t
6055 *
6056 */
6057-#define atomic64_read(v) ACCESS_ONCE((v)->counter)
6058+static inline long atomic64_read(const atomic64_t *v)
6059+{
6060+ return ACCESS_ONCE(v->counter);
6061+}
6062+
6063+static inline long atomic64_read_unchecked(const atomic64_unchecked_t *v)
6064+{
6065+ return ACCESS_ONCE(v->counter);
6066+}
6067
6068 /*
6069 * atomic64_set - set atomic variable
6070 * @v: pointer of type atomic64_t
6071 * @i: required value
6072 */
6073-#define atomic64_set(v, i) ((v)->counter = (i))
6074+static inline void atomic64_set(atomic64_t *v, long i)
6075+{
6076+ v->counter = i;
6077+}
6078
6079-#define ATOMIC64_OP(op, c_op, asm_op) \
6080-static __inline__ void atomic64_##op(long i, atomic64_t * v) \
6081+static inline void atomic64_set_unchecked(atomic64_unchecked_t *v, long i)
6082+{
6083+ v->counter = i;
6084+}
6085+
6086+#define __ATOMIC64_OP(op, suffix, asm_op, extable) \
6087+static inline void atomic64_##op##suffix(long i, atomic64##suffix##_t * v) \
6088 { \
6089 if (kernel_uses_llsc && R10000_LLSC_WAR) { \
6090 long temp; \
6091 \
6092 __asm__ __volatile__( \
6093- " .set arch=r4000 \n" \
6094- "1: lld %0, %1 # atomic64_" #op " \n" \
6095- " " #asm_op " %0, %2 \n" \
6096+ " .set "MIPS_ISA_LEVEL" \n" \
6097+ "1: lld %0, %1 # atomic64_" #op #suffix "\n" \
6098+ "2: " #asm_op " %0, %2 \n" \
6099 " scd %0, %1 \n" \
6100 " beqzl %0, 1b \n" \
6101+ extable \
6102 " .set mips0 \n" \
6103 : "=&r" (temp), "+" GCC_OFF_SMALL_ASM() (v->counter) \
6104 : "Ir" (i)); \
6105 } else if (kernel_uses_llsc) { \
6106 long temp; \
6107 \
6108- do { \
6109- __asm__ __volatile__( \
6110- " .set "MIPS_ISA_LEVEL" \n" \
6111- " lld %0, %1 # atomic64_" #op "\n" \
6112- " " #asm_op " %0, %2 \n" \
6113- " scd %0, %1 \n" \
6114- " .set mips0 \n" \
6115- : "=&r" (temp), "+" GCC_OFF_SMALL_ASM() (v->counter) \
6116- : "Ir" (i)); \
6117- } while (unlikely(!temp)); \
6118+ __asm__ __volatile__( \
6119+ " .set "MIPS_ISA_LEVEL" \n" \
6120+ "1: lld %0, %1 # atomic64_" #op #suffix "\n" \
6121+ "2: " #asm_op " %0, %2 \n" \
6122+ " scd %0, %1 \n" \
6123+ " beqz %0, 1b \n" \
6124+ extable \
6125+ " .set mips0 \n" \
6126+ : "=&r" (temp), "+" GCC_OFF_SMALL_ASM() (v->counter) \
6127+ : "Ir" (i)); \
6128 } else { \
6129 unsigned long flags; \
6130 \
6131 raw_local_irq_save(flags); \
6132- v->counter c_op i; \
6133+ __asm__ __volatile__( \
6134+ "2: " #asm_op " %0, %1 \n" \
6135+ extable \
6136+ : "+" GCC_OFF_SMALL_ASM() (v->counter) : "Ir" (i)); \
6137 raw_local_irq_restore(flags); \
6138 } \
6139 }
6140
6141-#define ATOMIC64_OP_RETURN(op, c_op, asm_op) \
6142-static __inline__ long atomic64_##op##_return(long i, atomic64_t * v) \
6143+#define ATOMIC64_OP(op, asm_op) __ATOMIC64_OP(op, _unchecked, asm_op##u, ) \
6144+ __ATOMIC64_OP(op, , asm_op, __OVERFLOW_EXTABLE)
6145+
6146+#define __ATOMIC64_OP_RETURN(op, suffix, asm_op, post_op, extable) \
6147+static inline long atomic64_##op##_return##suffix(long i, atomic64##suffix##_t * v)\
6148 { \
6149 long result; \
6150 \
6151@@ -368,12 +494,15 @@ static __inline__ long atomic64_##op##_return(long i, atomic64_t * v) \
6152 long temp; \
6153 \
6154 __asm__ __volatile__( \
6155- " .set arch=r4000 \n" \
6156+ " .set mips3 \n" \
6157 "1: lld %1, %2 # atomic64_" #op "_return\n" \
6158- " " #asm_op " %0, %1, %3 \n" \
6159+ "2: " #asm_op " %0, %1, %3 \n" \
6160 " scd %0, %2 \n" \
6161 " beqzl %0, 1b \n" \
6162- " " #asm_op " %0, %1, %3 \n" \
6163+ post_op \
6164+ extable \
6165+ "4: " #asm_op " %0, %1, %3 \n" \
6166+ "5: \n" \
6167 " .set mips0 \n" \
6168 : "=&r" (result), "=&r" (temp), \
6169 "+" GCC_OFF_SMALL_ASM() (v->counter) \
6170@@ -381,27 +510,35 @@ static __inline__ long atomic64_##op##_return(long i, atomic64_t * v) \
6171 } else if (kernel_uses_llsc) { \
6172 long temp; \
6173 \
6174- do { \
6175- __asm__ __volatile__( \
6176- " .set "MIPS_ISA_LEVEL" \n" \
6177- " lld %1, %2 # atomic64_" #op "_return\n" \
6178- " " #asm_op " %0, %1, %3 \n" \
6179- " scd %0, %2 \n" \
6180- " .set mips0 \n" \
6181- : "=&r" (result), "=&r" (temp), \
6182- "=" GCC_OFF_SMALL_ASM() (v->counter) \
6183- : "Ir" (i), GCC_OFF_SMALL_ASM() (v->counter) \
6184- : "memory"); \
6185- } while (unlikely(!result)); \
6186+ __asm__ __volatile__( \
6187+ " .set "MIPS_ISA_LEVEL" \n" \
6188+ "1: lld %1, %2 # atomic64_" #op "_return" #suffix "\n"\
6189+ "2: " #asm_op " %0, %1, %3 \n" \
6190+ " scd %0, %2 \n" \
6191+ " beqz %0, 1b \n" \
6192+ post_op \
6193+ extable \
6194+ "4: " #asm_op " %0, %1, %3 \n" \
6195+ "5: \n" \
6196+ " .set mips0 \n" \
6197+ : "=&r" (result), "=&r" (temp), \
6198+ "=" GCC_OFF_SMALL_ASM() (v->counter) \
6199+ : "Ir" (i), GCC_OFF_SMALL_ASM() (v->counter) \
6200+ : "memory"); \
6201 \
6202 result = temp; result c_op i; \
6203 } else { \
6204 unsigned long flags; \
6205 \
6206 raw_local_irq_save(flags); \
6207- result = v->counter; \
6208- result c_op i; \
6209- v->counter = result; \
6210+ __asm__ __volatile__( \
6211+ " ld %0, %1 \n" \
6212+ "2: " #asm_op " %0, %1, %2 \n" \
6213+ " sd %0, %1 \n" \
6214+ "3: \n" \
6215+ extable \
6216+ : "=&r" (result), "+" GCC_OFF_SMALL_ASM() (v->counter) \
6217+ : "Ir" (i)); \
6218 raw_local_irq_restore(flags); \
6219 } \
6220 \
6221@@ -410,16 +547,23 @@ static __inline__ long atomic64_##op##_return(long i, atomic64_t * v) \
6222 return result; \
6223 }
6224
6225-#define ATOMIC64_OPS(op, c_op, asm_op) \
6226- ATOMIC64_OP(op, c_op, asm_op) \
6227- ATOMIC64_OP_RETURN(op, c_op, asm_op)
6228+#define ATOMIC64_OP_RETURN(op, asm_op) __ATOMIC64_OP_RETURN(op, _unchecked, asm_op##u, , ) \
6229+ __ATOMIC64_OP_RETURN(op, , asm_op, __OVERFLOW_POST, __OVERFLOW_EXTABLE)
6230
6231-ATOMIC64_OPS(add, +=, daddu)
6232-ATOMIC64_OPS(sub, -=, dsubu)
6233+#define ATOMIC64_OPS(op, asm_op) \
6234+ ATOMIC64_OP(op, asm_op) \
6235+ ATOMIC64_OP_RETURN(op, asm_op)
6236+
6237+ATOMIC64_OPS(add, dadd)
6238+ATOMIC64_OPS(sub, dsub)
6239
6240 #undef ATOMIC64_OPS
6241 #undef ATOMIC64_OP_RETURN
6242+#undef __ATOMIC64_OP_RETURN
6243 #undef ATOMIC64_OP
6244+#undef __ATOMIC64_OP
6245+#undef __OVERFLOW_EXTABLE
6246+#undef __OVERFLOW_POST
6247
6248 /*
6249 * atomic64_sub_if_positive - conditionally subtract integer from atomic
6250@@ -430,7 +574,7 @@ ATOMIC64_OPS(sub, -=, dsubu)
6251 * Atomically test @v and subtract @i if @v is greater or equal than @i.
6252 * The function returns the old value of @v minus @i.
6253 */
6254-static __inline__ long atomic64_sub_if_positive(long i, atomic64_t * v)
6255+static __inline__ long atomic64_sub_if_positive(long i, atomic64_t *v)
6256 {
6257 long result;
6258
6259@@ -440,7 +584,7 @@ static __inline__ long atomic64_sub_if_positive(long i, atomic64_t * v)
6260 long temp;
6261
6262 __asm__ __volatile__(
6263- " .set arch=r4000 \n"
6264+ " .set "MIPS_ISA_LEVEL" \n"
6265 "1: lld %1, %2 # atomic64_sub_if_positive\n"
6266 " dsubu %0, %1, %3 \n"
6267 " bltz %0, 1f \n"
6268@@ -489,9 +633,26 @@ static __inline__ long atomic64_sub_if_positive(long i, atomic64_t * v)
6269 return result;
6270 }
6271
6272-#define atomic64_cmpxchg(v, o, n) \
6273- ((__typeof__((v)->counter))cmpxchg(&((v)->counter), (o), (n)))
6274-#define atomic64_xchg(v, new) (xchg(&((v)->counter), (new)))
6275+static inline long atomic64_cmpxchg(atomic64_t *v, long old, long new)
6276+{
6277+ return cmpxchg(&v->counter, old, new);
6278+}
6279+
6280+static inline long atomic64_cmpxchg_unchecked(atomic64_unchecked_t *v, long old,
6281+ long new)
6282+{
6283+ return cmpxchg(&(v->counter), old, new);
6284+}
6285+
6286+static inline long atomic64_xchg(atomic64_t *v, long new)
6287+{
6288+ return xchg(&v->counter, new);
6289+}
6290+
6291+static inline long atomic64_xchg_unchecked(atomic64_unchecked_t *v, long new)
6292+{
6293+ return xchg(&(v->counter), new);
6294+}
6295
6296 /**
6297 * atomic64_add_unless - add unless the number is a given value
6298@@ -521,6 +682,7 @@ static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u)
6299
6300 #define atomic64_dec_return(v) atomic64_sub_return(1, (v))
6301 #define atomic64_inc_return(v) atomic64_add_return(1, (v))
6302+#define atomic64_inc_return_unchecked(v) atomic64_add_return_unchecked(1, (v))
6303
6304 /*
6305 * atomic64_sub_and_test - subtract value from variable and test result
6306@@ -542,6 +704,7 @@ static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u)
6307 * other cases.
6308 */
6309 #define atomic64_inc_and_test(v) (atomic64_inc_return(v) == 0)
6310+#define atomic64_inc_and_test_unchecked(v) atomic64_add_return_unchecked(1, (v)) == 0)
6311
6312 /*
6313 * atomic64_dec_and_test - decrement by 1 and test
6314@@ -566,6 +729,7 @@ static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u)
6315 * Atomically increments @v by 1.
6316 */
6317 #define atomic64_inc(v) atomic64_add(1, (v))
6318+#define atomic64_inc_unchecked(v) atomic64_add_unchecked(1, (v))
6319
6320 /*
6321 * atomic64_dec - decrement and test
6322@@ -574,6 +738,7 @@ static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u)
6323 * Atomically decrements @v by 1.
6324 */
6325 #define atomic64_dec(v) atomic64_sub(1, (v))
6326+#define atomic64_dec_unchecked(v) atomic64_sub_unchecked(1, (v))
6327
6328 /*
6329 * atomic64_add_negative - add and test if negative
6330diff --git a/arch/mips/include/asm/barrier.h b/arch/mips/include/asm/barrier.h
6331index 2b8bbbc..4556df6 100644
6332--- a/arch/mips/include/asm/barrier.h
6333+++ b/arch/mips/include/asm/barrier.h
6334@@ -133,7 +133,7 @@
6335 do { \
6336 compiletime_assert_atomic_type(*p); \
6337 smp_mb(); \
6338- ACCESS_ONCE(*p) = (v); \
6339+ ACCESS_ONCE_RW(*p) = (v); \
6340 } while (0)
6341
6342 #define smp_load_acquire(p) \
6343diff --git a/arch/mips/include/asm/cache.h b/arch/mips/include/asm/cache.h
6344index b4db69f..8f3b093 100644
6345--- a/arch/mips/include/asm/cache.h
6346+++ b/arch/mips/include/asm/cache.h
6347@@ -9,10 +9,11 @@
6348 #ifndef _ASM_CACHE_H
6349 #define _ASM_CACHE_H
6350
6351+#include <linux/const.h>
6352 #include <kmalloc.h>
6353
6354 #define L1_CACHE_SHIFT CONFIG_MIPS_L1_CACHE_SHIFT
6355-#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
6356+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
6357
6358 #define SMP_CACHE_SHIFT L1_CACHE_SHIFT
6359 #define SMP_CACHE_BYTES L1_CACHE_BYTES
6360diff --git a/arch/mips/include/asm/elf.h b/arch/mips/include/asm/elf.h
6361index 694925a..990fa62 100644
6362--- a/arch/mips/include/asm/elf.h
6363+++ b/arch/mips/include/asm/elf.h
6364@@ -410,15 +410,18 @@ extern const char *__elf_platform;
6365 #define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2)
6366 #endif
6367
6368+#ifdef CONFIG_PAX_ASLR
6369+#define PAX_ELF_ET_DYN_BASE (TASK_IS_32BIT_ADDR ? 0x00400000UL : 0x00400000UL)
6370+
6371+#define PAX_DELTA_MMAP_LEN (TASK_IS_32BIT_ADDR ? 27-PAGE_SHIFT : 36-PAGE_SHIFT)
6372+#define PAX_DELTA_STACK_LEN (TASK_IS_32BIT_ADDR ? 27-PAGE_SHIFT : 36-PAGE_SHIFT)
6373+#endif
6374+
6375 #define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1
6376 struct linux_binprm;
6377 extern int arch_setup_additional_pages(struct linux_binprm *bprm,
6378 int uses_interp);
6379
6380-struct mm_struct;
6381-extern unsigned long arch_randomize_brk(struct mm_struct *mm);
6382-#define arch_randomize_brk arch_randomize_brk
6383-
6384 struct arch_elf_state {
6385 int fp_abi;
6386 int interp_fp_abi;
6387diff --git a/arch/mips/include/asm/exec.h b/arch/mips/include/asm/exec.h
6388index c1f6afa..38cc6e9 100644
6389--- a/arch/mips/include/asm/exec.h
6390+++ b/arch/mips/include/asm/exec.h
6391@@ -12,6 +12,6 @@
6392 #ifndef _ASM_EXEC_H
6393 #define _ASM_EXEC_H
6394
6395-extern unsigned long arch_align_stack(unsigned long sp);
6396+#define arch_align_stack(x) ((x) & ~0xfUL)
6397
6398 #endif /* _ASM_EXEC_H */
6399diff --git a/arch/mips/include/asm/hw_irq.h b/arch/mips/include/asm/hw_irq.h
6400index 9e8ef59..1139d6b 100644
6401--- a/arch/mips/include/asm/hw_irq.h
6402+++ b/arch/mips/include/asm/hw_irq.h
6403@@ -10,7 +10,7 @@
6404
6405 #include <linux/atomic.h>
6406
6407-extern atomic_t irq_err_count;
6408+extern atomic_unchecked_t irq_err_count;
6409
6410 /*
6411 * interrupt-retrigger: NOP for now. This may not be appropriate for all
6412diff --git a/arch/mips/include/asm/local.h b/arch/mips/include/asm/local.h
6413index 8feaed6..1bd8a64 100644
6414--- a/arch/mips/include/asm/local.h
6415+++ b/arch/mips/include/asm/local.h
6416@@ -13,15 +13,25 @@ typedef struct
6417 atomic_long_t a;
6418 } local_t;
6419
6420+typedef struct {
6421+ atomic_long_unchecked_t a;
6422+} local_unchecked_t;
6423+
6424 #define LOCAL_INIT(i) { ATOMIC_LONG_INIT(i) }
6425
6426 #define local_read(l) atomic_long_read(&(l)->a)
6427+#define local_read_unchecked(l) atomic_long_read_unchecked(&(l)->a)
6428 #define local_set(l, i) atomic_long_set(&(l)->a, (i))
6429+#define local_set_unchecked(l, i) atomic_long_set_unchecked(&(l)->a, (i))
6430
6431 #define local_add(i, l) atomic_long_add((i), (&(l)->a))
6432+#define local_add_unchecked(i, l) atomic_long_add_unchecked((i), (&(l)->a))
6433 #define local_sub(i, l) atomic_long_sub((i), (&(l)->a))
6434+#define local_sub_unchecked(i, l) atomic_long_sub_unchecked((i), (&(l)->a))
6435 #define local_inc(l) atomic_long_inc(&(l)->a)
6436+#define local_inc_unchecked(l) atomic_long_inc_unchecked(&(l)->a)
6437 #define local_dec(l) atomic_long_dec(&(l)->a)
6438+#define local_dec_unchecked(l) atomic_long_dec_unchecked(&(l)->a)
6439
6440 /*
6441 * Same as above, but return the result value
6442@@ -71,6 +81,51 @@ static __inline__ long local_add_return(long i, local_t * l)
6443 return result;
6444 }
6445
6446+static __inline__ long local_add_return_unchecked(long i, local_unchecked_t * l)
6447+{
6448+ unsigned long result;
6449+
6450+ if (kernel_uses_llsc && R10000_LLSC_WAR) {
6451+ unsigned long temp;
6452+
6453+ __asm__ __volatile__(
6454+ " .set mips3 \n"
6455+ "1:" __LL "%1, %2 # local_add_return \n"
6456+ " addu %0, %1, %3 \n"
6457+ __SC "%0, %2 \n"
6458+ " beqzl %0, 1b \n"
6459+ " addu %0, %1, %3 \n"
6460+ " .set mips0 \n"
6461+ : "=&r" (result), "=&r" (temp), "=m" (l->a.counter)
6462+ : "Ir" (i), "m" (l->a.counter)
6463+ : "memory");
6464+ } else if (kernel_uses_llsc) {
6465+ unsigned long temp;
6466+
6467+ __asm__ __volatile__(
6468+ " .set mips3 \n"
6469+ "1:" __LL "%1, %2 # local_add_return \n"
6470+ " addu %0, %1, %3 \n"
6471+ __SC "%0, %2 \n"
6472+ " beqz %0, 1b \n"
6473+ " addu %0, %1, %3 \n"
6474+ " .set mips0 \n"
6475+ : "=&r" (result), "=&r" (temp), "=m" (l->a.counter)
6476+ : "Ir" (i), "m" (l->a.counter)
6477+ : "memory");
6478+ } else {
6479+ unsigned long flags;
6480+
6481+ local_irq_save(flags);
6482+ result = l->a.counter;
6483+ result += i;
6484+ l->a.counter = result;
6485+ local_irq_restore(flags);
6486+ }
6487+
6488+ return result;
6489+}
6490+
6491 static __inline__ long local_sub_return(long i, local_t * l)
6492 {
6493 unsigned long result;
6494@@ -118,6 +173,8 @@ static __inline__ long local_sub_return(long i, local_t * l)
6495
6496 #define local_cmpxchg(l, o, n) \
6497 ((long)cmpxchg_local(&((l)->a.counter), (o), (n)))
6498+#define local_cmpxchg_unchecked(l, o, n) \
6499+ ((long)cmpxchg_local(&((l)->a.counter), (o), (n)))
6500 #define local_xchg(l, n) (atomic_long_xchg((&(l)->a), (n)))
6501
6502 /**
6503diff --git a/arch/mips/include/asm/page.h b/arch/mips/include/asm/page.h
6504index 154b70a..426ae3d 100644
6505--- a/arch/mips/include/asm/page.h
6506+++ b/arch/mips/include/asm/page.h
6507@@ -120,7 +120,7 @@ extern void copy_user_highpage(struct page *to, struct page *from,
6508 #ifdef CONFIG_CPU_MIPS32
6509 typedef struct { unsigned long pte_low, pte_high; } pte_t;
6510 #define pte_val(x) ((x).pte_low | ((unsigned long long)(x).pte_high << 32))
6511- #define __pte(x) ({ pte_t __pte = {(x), ((unsigned long long)(x)) >> 32}; __pte; })
6512+ #define __pte(x) ({ pte_t __pte = {(x), (x) >> 32}; __pte; })
6513 #else
6514 typedef struct { unsigned long long pte; } pte_t;
6515 #define pte_val(x) ((x).pte)
6516diff --git a/arch/mips/include/asm/pgalloc.h b/arch/mips/include/asm/pgalloc.h
6517index b336037..5b874cc 100644
6518--- a/arch/mips/include/asm/pgalloc.h
6519+++ b/arch/mips/include/asm/pgalloc.h
6520@@ -37,6 +37,11 @@ static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
6521 {
6522 set_pud(pud, __pud((unsigned long)pmd));
6523 }
6524+
6525+static inline void pud_populate_kernel(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
6526+{
6527+ pud_populate(mm, pud, pmd);
6528+}
6529 #endif
6530
6531 /*
6532diff --git a/arch/mips/include/asm/pgtable.h b/arch/mips/include/asm/pgtable.h
6533index f8f809f..b5f3fa4 100644
6534--- a/arch/mips/include/asm/pgtable.h
6535+++ b/arch/mips/include/asm/pgtable.h
6536@@ -20,6 +20,9 @@
6537 #include <asm/io.h>
6538 #include <asm/pgtable-bits.h>
6539
6540+#define ktla_ktva(addr) (addr)
6541+#define ktva_ktla(addr) (addr)
6542+
6543 struct mm_struct;
6544 struct vm_area_struct;
6545
6546diff --git a/arch/mips/include/asm/thread_info.h b/arch/mips/include/asm/thread_info.h
6547index 55ed660..3dc9422 100644
6548--- a/arch/mips/include/asm/thread_info.h
6549+++ b/arch/mips/include/asm/thread_info.h
6550@@ -102,6 +102,9 @@ static inline struct thread_info *current_thread_info(void)
6551 #define TIF_SECCOMP 4 /* secure computing */
6552 #define TIF_NOTIFY_RESUME 5 /* callback before returning to user */
6553 #define TIF_RESTORE_SIGMASK 9 /* restore signal mask in do_signal() */
6554+/* li takes a 32bit immediate */
6555+#define TIF_GRSEC_SETXID 10 /* update credentials on syscall entry/exit */
6556+
6557 #define TIF_USEDFPU 16 /* FPU was used by this task this quantum (SMP) */
6558 #define TIF_MEMDIE 18 /* is terminating due to OOM killer */
6559 #define TIF_NOHZ 19 /* in adaptive nohz mode */
6560@@ -137,14 +140,16 @@ static inline struct thread_info *current_thread_info(void)
6561 #define _TIF_USEDMSA (1<<TIF_USEDMSA)
6562 #define _TIF_MSA_CTX_LIVE (1<<TIF_MSA_CTX_LIVE)
6563 #define _TIF_SYSCALL_TRACEPOINT (1<<TIF_SYSCALL_TRACEPOINT)
6564+#define _TIF_GRSEC_SETXID (1<<TIF_GRSEC_SETXID)
6565
6566 #define _TIF_WORK_SYSCALL_ENTRY (_TIF_NOHZ | _TIF_SYSCALL_TRACE | \
6567 _TIF_SYSCALL_AUDIT | \
6568- _TIF_SYSCALL_TRACEPOINT | _TIF_SECCOMP)
6569+ _TIF_SYSCALL_TRACEPOINT | _TIF_SECCOMP | \
6570+ _TIF_GRSEC_SETXID)
6571
6572 /* work to do in syscall_trace_leave() */
6573 #define _TIF_WORK_SYSCALL_EXIT (_TIF_NOHZ | _TIF_SYSCALL_TRACE | \
6574- _TIF_SYSCALL_AUDIT | _TIF_SYSCALL_TRACEPOINT)
6575+ _TIF_SYSCALL_AUDIT | _TIF_SYSCALL_TRACEPOINT | _TIF_GRSEC_SETXID)
6576
6577 /* work to do on interrupt/exception return */
6578 #define _TIF_WORK_MASK \
6579@@ -152,7 +157,7 @@ static inline struct thread_info *current_thread_info(void)
6580 /* work to do on any return to u-space */
6581 #define _TIF_ALLWORK_MASK (_TIF_NOHZ | _TIF_WORK_MASK | \
6582 _TIF_WORK_SYSCALL_EXIT | \
6583- _TIF_SYSCALL_TRACEPOINT)
6584+ _TIF_SYSCALL_TRACEPOINT | _TIF_GRSEC_SETXID)
6585
6586 /*
6587 * We stash processor id into a COP0 register to retrieve it fast
6588diff --git a/arch/mips/include/asm/uaccess.h b/arch/mips/include/asm/uaccess.h
6589index bf8b324..cec5705 100644
6590--- a/arch/mips/include/asm/uaccess.h
6591+++ b/arch/mips/include/asm/uaccess.h
6592@@ -130,6 +130,7 @@ extern u64 __ua_limit;
6593 __ok == 0; \
6594 })
6595
6596+#define access_ok_noprefault(type, addr, size) access_ok((type), (addr), (size))
6597 #define access_ok(type, addr, size) \
6598 likely(__access_ok((addr), (size), __access_mask))
6599
6600diff --git a/arch/mips/kernel/binfmt_elfn32.c b/arch/mips/kernel/binfmt_elfn32.c
6601index 1188e00..41cf144 100644
6602--- a/arch/mips/kernel/binfmt_elfn32.c
6603+++ b/arch/mips/kernel/binfmt_elfn32.c
6604@@ -50,6 +50,13 @@ typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
6605 #undef ELF_ET_DYN_BASE
6606 #define ELF_ET_DYN_BASE (TASK32_SIZE / 3 * 2)
6607
6608+#ifdef CONFIG_PAX_ASLR
6609+#define PAX_ELF_ET_DYN_BASE (TASK_IS_32BIT_ADDR ? 0x00400000UL : 0x00400000UL)
6610+
6611+#define PAX_DELTA_MMAP_LEN (TASK_IS_32BIT_ADDR ? 27-PAGE_SHIFT : 36-PAGE_SHIFT)
6612+#define PAX_DELTA_STACK_LEN (TASK_IS_32BIT_ADDR ? 27-PAGE_SHIFT : 36-PAGE_SHIFT)
6613+#endif
6614+
6615 #include <asm/processor.h>
6616 #include <linux/module.h>
6617 #include <linux/elfcore.h>
6618diff --git a/arch/mips/kernel/binfmt_elfo32.c b/arch/mips/kernel/binfmt_elfo32.c
6619index 9287678..f870e47 100644
6620--- a/arch/mips/kernel/binfmt_elfo32.c
6621+++ b/arch/mips/kernel/binfmt_elfo32.c
6622@@ -70,6 +70,13 @@ typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
6623 #undef ELF_ET_DYN_BASE
6624 #define ELF_ET_DYN_BASE (TASK32_SIZE / 3 * 2)
6625
6626+#ifdef CONFIG_PAX_ASLR
6627+#define PAX_ELF_ET_DYN_BASE (TASK_IS_32BIT_ADDR ? 0x00400000UL : 0x00400000UL)
6628+
6629+#define PAX_DELTA_MMAP_LEN (TASK_IS_32BIT_ADDR ? 27-PAGE_SHIFT : 36-PAGE_SHIFT)
6630+#define PAX_DELTA_STACK_LEN (TASK_IS_32BIT_ADDR ? 27-PAGE_SHIFT : 36-PAGE_SHIFT)
6631+#endif
6632+
6633 #include <asm/processor.h>
6634
6635 #include <linux/module.h>
6636diff --git a/arch/mips/kernel/i8259.c b/arch/mips/kernel/i8259.c
6637index a74ec3a..4f06f18 100644
6638--- a/arch/mips/kernel/i8259.c
6639+++ b/arch/mips/kernel/i8259.c
6640@@ -202,7 +202,7 @@ spurious_8259A_irq:
6641 printk(KERN_DEBUG "spurious 8259A interrupt: IRQ%d.\n", irq);
6642 spurious_irq_mask |= irqmask;
6643 }
6644- atomic_inc(&irq_err_count);
6645+ atomic_inc_unchecked(&irq_err_count);
6646 /*
6647 * Theoretically we do not have to handle this IRQ,
6648 * but in Linux this does not cause problems and is
6649diff --git a/arch/mips/kernel/irq-gt641xx.c b/arch/mips/kernel/irq-gt641xx.c
6650index 44a1f79..2bd6aa3 100644
6651--- a/arch/mips/kernel/irq-gt641xx.c
6652+++ b/arch/mips/kernel/irq-gt641xx.c
6653@@ -110,7 +110,7 @@ void gt641xx_irq_dispatch(void)
6654 }
6655 }
6656
6657- atomic_inc(&irq_err_count);
6658+ atomic_inc_unchecked(&irq_err_count);
6659 }
6660
6661 void __init gt641xx_irq_init(void)
6662diff --git a/arch/mips/kernel/irq.c b/arch/mips/kernel/irq.c
6663index be15e52..a089cc4 100644
6664--- a/arch/mips/kernel/irq.c
6665+++ b/arch/mips/kernel/irq.c
6666@@ -76,17 +76,17 @@ void ack_bad_irq(unsigned int irq)
6667 printk("unexpected IRQ # %d\n", irq);
6668 }
6669
6670-atomic_t irq_err_count;
6671+atomic_unchecked_t irq_err_count;
6672
6673 int arch_show_interrupts(struct seq_file *p, int prec)
6674 {
6675- seq_printf(p, "%*s: %10u\n", prec, "ERR", atomic_read(&irq_err_count));
6676+ seq_printf(p, "%*s: %10u\n", prec, "ERR", atomic_read_unchecked(&irq_err_count));
6677 return 0;
6678 }
6679
6680 asmlinkage void spurious_interrupt(void)
6681 {
6682- atomic_inc(&irq_err_count);
6683+ atomic_inc_unchecked(&irq_err_count);
6684 }
6685
6686 void __init init_IRQ(void)
6687@@ -110,6 +110,8 @@ void __init init_IRQ(void)
6688 }
6689
6690 #ifdef CONFIG_DEBUG_STACKOVERFLOW
6691+
6692+extern void gr_handle_kernel_exploit(void);
6693 static inline void check_stack_overflow(void)
6694 {
6695 unsigned long sp;
6696@@ -125,6 +127,7 @@ static inline void check_stack_overflow(void)
6697 printk("do_IRQ: stack overflow: %ld\n",
6698 sp - sizeof(struct thread_info));
6699 dump_stack();
6700+ gr_handle_kernel_exploit();
6701 }
6702 }
6703 #else
6704diff --git a/arch/mips/kernel/pm-cps.c b/arch/mips/kernel/pm-cps.c
6705index 0614717..002fa43 100644
6706--- a/arch/mips/kernel/pm-cps.c
6707+++ b/arch/mips/kernel/pm-cps.c
6708@@ -172,7 +172,7 @@ int cps_pm_enter_state(enum cps_pm_state state)
6709 nc_core_ready_count = nc_addr;
6710
6711 /* Ensure ready_count is zero-initialised before the assembly runs */
6712- ACCESS_ONCE(*nc_core_ready_count) = 0;
6713+ ACCESS_ONCE_RW(*nc_core_ready_count) = 0;
6714 coupled_barrier(&per_cpu(pm_barrier, core), online);
6715
6716 /* Run the generated entry code */
6717diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c
6718index bf85cc1..b365c61 100644
6719--- a/arch/mips/kernel/process.c
6720+++ b/arch/mips/kernel/process.c
6721@@ -535,18 +535,6 @@ out:
6722 return pc;
6723 }
6724
6725-/*
6726- * Don't forget that the stack pointer must be aligned on a 8 bytes
6727- * boundary for 32-bits ABI and 16 bytes for 64-bits ABI.
6728- */
6729-unsigned long arch_align_stack(unsigned long sp)
6730-{
6731- if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space)
6732- sp -= get_random_int() & ~PAGE_MASK;
6733-
6734- return sp & ALMASK;
6735-}
6736-
6737 static void arch_dump_stack(void *info)
6738 {
6739 struct pt_regs *regs;
6740diff --git a/arch/mips/kernel/ptrace.c b/arch/mips/kernel/ptrace.c
6741index 5104528..950bbdc 100644
6742--- a/arch/mips/kernel/ptrace.c
6743+++ b/arch/mips/kernel/ptrace.c
6744@@ -761,6 +761,10 @@ long arch_ptrace(struct task_struct *child, long request,
6745 return ret;
6746 }
6747
6748+#ifdef CONFIG_GRKERNSEC_SETXID
6749+extern void gr_delayed_cred_worker(void);
6750+#endif
6751+
6752 /*
6753 * Notification of system call entry/exit
6754 * - triggered by current->work.syscall_trace
6755@@ -779,6 +783,11 @@ asmlinkage long syscall_trace_enter(struct pt_regs *regs, long syscall)
6756 tracehook_report_syscall_entry(regs))
6757 ret = -1;
6758
6759+#ifdef CONFIG_GRKERNSEC_SETXID
6760+ if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID)))
6761+ gr_delayed_cred_worker();
6762+#endif
6763+
6764 if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
6765 trace_sys_enter(regs, regs->regs[2]);
6766
6767diff --git a/arch/mips/kernel/reset.c b/arch/mips/kernel/reset.c
6768index 07fc524..b9d7f28 100644
6769--- a/arch/mips/kernel/reset.c
6770+++ b/arch/mips/kernel/reset.c
6771@@ -13,6 +13,7 @@
6772 #include <linux/reboot.h>
6773
6774 #include <asm/reboot.h>
6775+#include <asm/bug.h>
6776
6777 /*
6778 * Urgs ... Too many MIPS machines to handle this in a generic way.
6779@@ -29,16 +30,19 @@ void machine_restart(char *command)
6780 {
6781 if (_machine_restart)
6782 _machine_restart(command);
6783+ BUG();
6784 }
6785
6786 void machine_halt(void)
6787 {
6788 if (_machine_halt)
6789 _machine_halt();
6790+ BUG();
6791 }
6792
6793 void machine_power_off(void)
6794 {
6795 if (pm_power_off)
6796 pm_power_off();
6797+ BUG();
6798 }
6799diff --git a/arch/mips/kernel/sync-r4k.c b/arch/mips/kernel/sync-r4k.c
6800index 2242bdd..b284048 100644
6801--- a/arch/mips/kernel/sync-r4k.c
6802+++ b/arch/mips/kernel/sync-r4k.c
6803@@ -18,8 +18,8 @@
6804 #include <asm/mipsregs.h>
6805
6806 static atomic_t count_start_flag = ATOMIC_INIT(0);
6807-static atomic_t count_count_start = ATOMIC_INIT(0);
6808-static atomic_t count_count_stop = ATOMIC_INIT(0);
6809+static atomic_unchecked_t count_count_start = ATOMIC_INIT(0);
6810+static atomic_unchecked_t count_count_stop = ATOMIC_INIT(0);
6811 static atomic_t count_reference = ATOMIC_INIT(0);
6812
6813 #define COUNTON 100
6814@@ -58,13 +58,13 @@ void synchronise_count_master(int cpu)
6815
6816 for (i = 0; i < NR_LOOPS; i++) {
6817 /* slaves loop on '!= 2' */
6818- while (atomic_read(&count_count_start) != 1)
6819+ while (atomic_read_unchecked(&count_count_start) != 1)
6820 mb();
6821- atomic_set(&count_count_stop, 0);
6822+ atomic_set_unchecked(&count_count_stop, 0);
6823 smp_wmb();
6824
6825 /* this lets the slaves write their count register */
6826- atomic_inc(&count_count_start);
6827+ atomic_inc_unchecked(&count_count_start);
6828
6829 /*
6830 * Everyone initialises count in the last loop:
6831@@ -75,11 +75,11 @@ void synchronise_count_master(int cpu)
6832 /*
6833 * Wait for all slaves to leave the synchronization point:
6834 */
6835- while (atomic_read(&count_count_stop) != 1)
6836+ while (atomic_read_unchecked(&count_count_stop) != 1)
6837 mb();
6838- atomic_set(&count_count_start, 0);
6839+ atomic_set_unchecked(&count_count_start, 0);
6840 smp_wmb();
6841- atomic_inc(&count_count_stop);
6842+ atomic_inc_unchecked(&count_count_stop);
6843 }
6844 /* Arrange for an interrupt in a short while */
6845 write_c0_compare(read_c0_count() + COUNTON);
6846@@ -112,8 +112,8 @@ void synchronise_count_slave(int cpu)
6847 initcount = atomic_read(&count_reference);
6848
6849 for (i = 0; i < NR_LOOPS; i++) {
6850- atomic_inc(&count_count_start);
6851- while (atomic_read(&count_count_start) != 2)
6852+ atomic_inc_unchecked(&count_count_start);
6853+ while (atomic_read_unchecked(&count_count_start) != 2)
6854 mb();
6855
6856 /*
6857@@ -122,8 +122,8 @@ void synchronise_count_slave(int cpu)
6858 if (i == NR_LOOPS-1)
6859 write_c0_count(initcount);
6860
6861- atomic_inc(&count_count_stop);
6862- while (atomic_read(&count_count_stop) != 2)
6863+ atomic_inc_unchecked(&count_count_stop);
6864+ while (atomic_read_unchecked(&count_count_stop) != 2)
6865 mb();
6866 }
6867 /* Arrange for an interrupt in a short while */
6868diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
6869index 33984c0..666a96d 100644
6870--- a/arch/mips/kernel/traps.c
6871+++ b/arch/mips/kernel/traps.c
6872@@ -689,7 +689,18 @@ asmlinkage void do_ov(struct pt_regs *regs)
6873 siginfo_t info;
6874
6875 prev_state = exception_enter();
6876- die_if_kernel("Integer overflow", regs);
6877+ if (unlikely(!user_mode(regs))) {
6878+
6879+#ifdef CONFIG_PAX_REFCOUNT
6880+ if (fixup_exception(regs)) {
6881+ pax_report_refcount_overflow(regs);
6882+ exception_exit(prev_state);
6883+ return;
6884+ }
6885+#endif
6886+
6887+ die("Integer overflow", regs);
6888+ }
6889
6890 info.si_code = FPE_INTOVF;
6891 info.si_signo = SIGFPE;
6892diff --git a/arch/mips/kvm/mips.c b/arch/mips/kvm/mips.c
6893index f5e7dda..47198ec 100644
6894--- a/arch/mips/kvm/mips.c
6895+++ b/arch/mips/kvm/mips.c
6896@@ -816,7 +816,7 @@ long kvm_arch_vm_ioctl(struct file *filp, unsigned int ioctl, unsigned long arg)
6897 return r;
6898 }
6899
6900-int kvm_arch_init(void *opaque)
6901+int kvm_arch_init(const void *opaque)
6902 {
6903 if (kvm_mips_callbacks) {
6904 kvm_err("kvm: module already exists\n");
6905diff --git a/arch/mips/mm/fault.c b/arch/mips/mm/fault.c
6906index 7ff8637..6004edb 100644
6907--- a/arch/mips/mm/fault.c
6908+++ b/arch/mips/mm/fault.c
6909@@ -31,6 +31,23 @@
6910
6911 int show_unhandled_signals = 1;
6912
6913+#ifdef CONFIG_PAX_PAGEEXEC
6914+void pax_report_insns(struct pt_regs *regs, void *pc, void *sp)
6915+{
6916+ unsigned long i;
6917+
6918+ printk(KERN_ERR "PAX: bytes at PC: ");
6919+ for (i = 0; i < 5; i++) {
6920+ unsigned int c;
6921+ if (get_user(c, (unsigned int *)pc+i))
6922+ printk(KERN_CONT "???????? ");
6923+ else
6924+ printk(KERN_CONT "%08x ", c);
6925+ }
6926+ printk("\n");
6927+}
6928+#endif
6929+
6930 /*
6931 * This routine handles page faults. It determines the address,
6932 * and the problem, and then passes it off to one of the appropriate
6933@@ -206,6 +223,14 @@ bad_area:
6934 bad_area_nosemaphore:
6935 /* User mode accesses just cause a SIGSEGV */
6936 if (user_mode(regs)) {
6937+
6938+#ifdef CONFIG_PAX_PAGEEXEC
6939+ if (cpu_has_rixi && (mm->pax_flags & MF_PAX_PAGEEXEC) && !write && address == instruction_pointer(regs)) {
6940+ pax_report_fault(regs, (void *)address, (void *)user_stack_pointer(regs));
6941+ do_group_exit(SIGKILL);
6942+ }
6943+#endif
6944+
6945 tsk->thread.cp0_badvaddr = address;
6946 tsk->thread.error_code = write;
6947 if (show_unhandled_signals &&
6948diff --git a/arch/mips/mm/mmap.c b/arch/mips/mm/mmap.c
6949index f1baadd..5472dca 100644
6950--- a/arch/mips/mm/mmap.c
6951+++ b/arch/mips/mm/mmap.c
6952@@ -59,6 +59,7 @@ static unsigned long arch_get_unmapped_area_common(struct file *filp,
6953 struct vm_area_struct *vma;
6954 unsigned long addr = addr0;
6955 int do_color_align;
6956+ unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
6957 struct vm_unmapped_area_info info;
6958
6959 if (unlikely(len > TASK_SIZE))
6960@@ -84,6 +85,11 @@ static unsigned long arch_get_unmapped_area_common(struct file *filp,
6961 do_color_align = 1;
6962
6963 /* requesting a specific address */
6964+
6965+#ifdef CONFIG_PAX_RANDMMAP
6966+ if (!(current->mm->pax_flags & MF_PAX_RANDMMAP))
6967+#endif
6968+
6969 if (addr) {
6970 if (do_color_align)
6971 addr = COLOUR_ALIGN(addr, pgoff);
6972@@ -91,14 +97,14 @@ static unsigned long arch_get_unmapped_area_common(struct file *filp,
6973 addr = PAGE_ALIGN(addr);
6974
6975 vma = find_vma(mm, addr);
6976- if (TASK_SIZE - len >= addr &&
6977- (!vma || addr + len <= vma->vm_start))
6978+ if (TASK_SIZE - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
6979 return addr;
6980 }
6981
6982 info.length = len;
6983 info.align_mask = do_color_align ? (PAGE_MASK & shm_align_mask) : 0;
6984 info.align_offset = pgoff << PAGE_SHIFT;
6985+ info.threadstack_offset = offset;
6986
6987 if (dir == DOWN) {
6988 info.flags = VM_UNMAPPED_AREA_TOPDOWN;
6989@@ -146,6 +152,10 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
6990 {
6991 unsigned long random_factor = 0UL;
6992
6993+#ifdef CONFIG_PAX_RANDMMAP
6994+ if (!(mm->pax_flags & MF_PAX_RANDMMAP))
6995+#endif
6996+
6997 if (current->flags & PF_RANDOMIZE) {
6998 random_factor = get_random_int();
6999 random_factor = random_factor << PAGE_SHIFT;
7000@@ -157,40 +167,25 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
7001
7002 if (mmap_is_legacy()) {
7003 mm->mmap_base = TASK_UNMAPPED_BASE + random_factor;
7004+
7005+#ifdef CONFIG_PAX_RANDMMAP
7006+ if (mm->pax_flags & MF_PAX_RANDMMAP)
7007+ mm->mmap_base += mm->delta_mmap;
7008+#endif
7009+
7010 mm->get_unmapped_area = arch_get_unmapped_area;
7011 } else {
7012 mm->mmap_base = mmap_base(random_factor);
7013+
7014+#ifdef CONFIG_PAX_RANDMMAP
7015+ if (mm->pax_flags & MF_PAX_RANDMMAP)
7016+ mm->mmap_base -= mm->delta_mmap + mm->delta_stack;
7017+#endif
7018+
7019 mm->get_unmapped_area = arch_get_unmapped_area_topdown;
7020 }
7021 }
7022
7023-static inline unsigned long brk_rnd(void)
7024-{
7025- unsigned long rnd = get_random_int();
7026-
7027- rnd = rnd << PAGE_SHIFT;
7028- /* 8MB for 32bit, 256MB for 64bit */
7029- if (TASK_IS_32BIT_ADDR)
7030- rnd = rnd & 0x7ffffful;
7031- else
7032- rnd = rnd & 0xffffffful;
7033-
7034- return rnd;
7035-}
7036-
7037-unsigned long arch_randomize_brk(struct mm_struct *mm)
7038-{
7039- unsigned long base = mm->brk;
7040- unsigned long ret;
7041-
7042- ret = PAGE_ALIGN(base + brk_rnd());
7043-
7044- if (ret < mm->brk)
7045- return mm->brk;
7046-
7047- return ret;
7048-}
7049-
7050 int __virt_addr_valid(const volatile void *kaddr)
7051 {
7052 return pfn_valid(PFN_DOWN(virt_to_phys(kaddr)));
7053diff --git a/arch/mips/sgi-ip27/ip27-nmi.c b/arch/mips/sgi-ip27/ip27-nmi.c
7054index a2358b4..7cead4f 100644
7055--- a/arch/mips/sgi-ip27/ip27-nmi.c
7056+++ b/arch/mips/sgi-ip27/ip27-nmi.c
7057@@ -187,9 +187,9 @@ void
7058 cont_nmi_dump(void)
7059 {
7060 #ifndef REAL_NMI_SIGNAL
7061- static atomic_t nmied_cpus = ATOMIC_INIT(0);
7062+ static atomic_unchecked_t nmied_cpus = ATOMIC_INIT(0);
7063
7064- atomic_inc(&nmied_cpus);
7065+ atomic_inc_unchecked(&nmied_cpus);
7066 #endif
7067 /*
7068 * Only allow 1 cpu to proceed
7069@@ -233,7 +233,7 @@ cont_nmi_dump(void)
7070 udelay(10000);
7071 }
7072 #else
7073- while (atomic_read(&nmied_cpus) != num_online_cpus());
7074+ while (atomic_read_unchecked(&nmied_cpus) != num_online_cpus());
7075 #endif
7076
7077 /*
7078diff --git a/arch/mips/sni/rm200.c b/arch/mips/sni/rm200.c
7079index a046b30..6799527 100644
7080--- a/arch/mips/sni/rm200.c
7081+++ b/arch/mips/sni/rm200.c
7082@@ -270,7 +270,7 @@ spurious_8259A_irq:
7083 "spurious RM200 8259A interrupt: IRQ%d.\n", irq);
7084 spurious_irq_mask |= irqmask;
7085 }
7086- atomic_inc(&irq_err_count);
7087+ atomic_inc_unchecked(&irq_err_count);
7088 /*
7089 * Theoretically we do not have to handle this IRQ,
7090 * but in Linux this does not cause problems and is
7091diff --git a/arch/mips/vr41xx/common/icu.c b/arch/mips/vr41xx/common/icu.c
7092index 41e873b..34d33a7 100644
7093--- a/arch/mips/vr41xx/common/icu.c
7094+++ b/arch/mips/vr41xx/common/icu.c
7095@@ -653,7 +653,7 @@ static int icu_get_irq(unsigned int irq)
7096
7097 printk(KERN_ERR "spurious ICU interrupt: %04x,%04x\n", pend1, pend2);
7098
7099- atomic_inc(&irq_err_count);
7100+ atomic_inc_unchecked(&irq_err_count);
7101
7102 return -1;
7103 }
7104diff --git a/arch/mips/vr41xx/common/irq.c b/arch/mips/vr41xx/common/irq.c
7105index ae0e4ee..e8f0692 100644
7106--- a/arch/mips/vr41xx/common/irq.c
7107+++ b/arch/mips/vr41xx/common/irq.c
7108@@ -64,7 +64,7 @@ static void irq_dispatch(unsigned int irq)
7109 irq_cascade_t *cascade;
7110
7111 if (irq >= NR_IRQS) {
7112- atomic_inc(&irq_err_count);
7113+ atomic_inc_unchecked(&irq_err_count);
7114 return;
7115 }
7116
7117@@ -84,7 +84,7 @@ static void irq_dispatch(unsigned int irq)
7118 ret = cascade->get_irq(irq);
7119 irq = ret;
7120 if (ret < 0)
7121- atomic_inc(&irq_err_count);
7122+ atomic_inc_unchecked(&irq_err_count);
7123 else
7124 irq_dispatch(irq);
7125 if (!irqd_irq_disabled(idata) && chip->irq_unmask)
7126diff --git a/arch/mn10300/proc-mn103e010/include/proc/cache.h b/arch/mn10300/proc-mn103e010/include/proc/cache.h
7127index 967d144..db12197 100644
7128--- a/arch/mn10300/proc-mn103e010/include/proc/cache.h
7129+++ b/arch/mn10300/proc-mn103e010/include/proc/cache.h
7130@@ -11,12 +11,14 @@
7131 #ifndef _ASM_PROC_CACHE_H
7132 #define _ASM_PROC_CACHE_H
7133
7134+#include <linux/const.h>
7135+
7136 /* L1 cache */
7137
7138 #define L1_CACHE_NWAYS 4 /* number of ways in caches */
7139 #define L1_CACHE_NENTRIES 256 /* number of entries in each way */
7140-#define L1_CACHE_BYTES 16 /* bytes per entry */
7141 #define L1_CACHE_SHIFT 4 /* shift for bytes per entry */
7142+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT) /* bytes per entry */
7143 #define L1_CACHE_WAYDISP 0x1000 /* displacement of one way from the next */
7144
7145 #define L1_CACHE_TAG_VALID 0x00000001 /* cache tag valid bit */
7146diff --git a/arch/mn10300/proc-mn2ws0050/include/proc/cache.h b/arch/mn10300/proc-mn2ws0050/include/proc/cache.h
7147index bcb5df2..84fabd2 100644
7148--- a/arch/mn10300/proc-mn2ws0050/include/proc/cache.h
7149+++ b/arch/mn10300/proc-mn2ws0050/include/proc/cache.h
7150@@ -16,13 +16,15 @@
7151 #ifndef _ASM_PROC_CACHE_H
7152 #define _ASM_PROC_CACHE_H
7153
7154+#include <linux/const.h>
7155+
7156 /*
7157 * L1 cache
7158 */
7159 #define L1_CACHE_NWAYS 4 /* number of ways in caches */
7160 #define L1_CACHE_NENTRIES 128 /* number of entries in each way */
7161-#define L1_CACHE_BYTES 32 /* bytes per entry */
7162 #define L1_CACHE_SHIFT 5 /* shift for bytes per entry */
7163+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT) /* bytes per entry */
7164 #define L1_CACHE_WAYDISP 0x1000 /* distance from one way to the next */
7165
7166 #define L1_CACHE_TAG_VALID 0x00000001 /* cache tag valid bit */
7167diff --git a/arch/openrisc/include/asm/cache.h b/arch/openrisc/include/asm/cache.h
7168index 4ce7a01..449202a 100644
7169--- a/arch/openrisc/include/asm/cache.h
7170+++ b/arch/openrisc/include/asm/cache.h
7171@@ -19,11 +19,13 @@
7172 #ifndef __ASM_OPENRISC_CACHE_H
7173 #define __ASM_OPENRISC_CACHE_H
7174
7175+#include <linux/const.h>
7176+
7177 /* FIXME: How can we replace these with values from the CPU...
7178 * they shouldn't be hard-coded!
7179 */
7180
7181-#define L1_CACHE_BYTES 16
7182 #define L1_CACHE_SHIFT 4
7183+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
7184
7185 #endif /* __ASM_OPENRISC_CACHE_H */
7186diff --git a/arch/parisc/include/asm/atomic.h b/arch/parisc/include/asm/atomic.h
7187index 226f8ca9..9d9b87d 100644
7188--- a/arch/parisc/include/asm/atomic.h
7189+++ b/arch/parisc/include/asm/atomic.h
7190@@ -273,6 +273,16 @@ static inline long atomic64_dec_if_positive(atomic64_t *v)
7191 return dec;
7192 }
7193
7194+#define atomic64_read_unchecked(v) atomic64_read(v)
7195+#define atomic64_set_unchecked(v, i) atomic64_set((v), (i))
7196+#define atomic64_add_unchecked(a, v) atomic64_add((a), (v))
7197+#define atomic64_add_return_unchecked(a, v) atomic64_add_return((a), (v))
7198+#define atomic64_sub_unchecked(a, v) atomic64_sub((a), (v))
7199+#define atomic64_inc_unchecked(v) atomic64_inc(v)
7200+#define atomic64_inc_return_unchecked(v) atomic64_inc_return(v)
7201+#define atomic64_dec_unchecked(v) atomic64_dec(v)
7202+#define atomic64_cmpxchg_unchecked(v, o, n) atomic64_cmpxchg((v), (o), (n))
7203+
7204 #endif /* !CONFIG_64BIT */
7205
7206
7207diff --git a/arch/parisc/include/asm/cache.h b/arch/parisc/include/asm/cache.h
7208index 47f11c7..3420df2 100644
7209--- a/arch/parisc/include/asm/cache.h
7210+++ b/arch/parisc/include/asm/cache.h
7211@@ -5,6 +5,7 @@
7212 #ifndef __ARCH_PARISC_CACHE_H
7213 #define __ARCH_PARISC_CACHE_H
7214
7215+#include <linux/const.h>
7216
7217 /*
7218 * PA 2.0 processors have 64-byte cachelines; PA 1.1 processors have
7219@@ -15,13 +16,13 @@
7220 * just ruin performance.
7221 */
7222 #ifdef CONFIG_PA20
7223-#define L1_CACHE_BYTES 64
7224 #define L1_CACHE_SHIFT 6
7225 #else
7226-#define L1_CACHE_BYTES 32
7227 #define L1_CACHE_SHIFT 5
7228 #endif
7229
7230+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
7231+
7232 #ifndef __ASSEMBLY__
7233
7234 #define SMP_CACHE_BYTES L1_CACHE_BYTES
7235diff --git a/arch/parisc/include/asm/elf.h b/arch/parisc/include/asm/elf.h
7236index 78c9fd3..42fa66a 100644
7237--- a/arch/parisc/include/asm/elf.h
7238+++ b/arch/parisc/include/asm/elf.h
7239@@ -342,6 +342,13 @@ struct pt_regs; /* forward declaration... */
7240
7241 #define ELF_ET_DYN_BASE (TASK_UNMAPPED_BASE + 0x01000000)
7242
7243+#ifdef CONFIG_PAX_ASLR
7244+#define PAX_ELF_ET_DYN_BASE 0x10000UL
7245+
7246+#define PAX_DELTA_MMAP_LEN 16
7247+#define PAX_DELTA_STACK_LEN 16
7248+#endif
7249+
7250 /* This yields a mask that user programs can use to figure out what
7251 instruction set this CPU supports. This could be done in user space,
7252 but it's not easy, and we've already done it here. */
7253diff --git a/arch/parisc/include/asm/pgalloc.h b/arch/parisc/include/asm/pgalloc.h
7254index d174372..f27fe5c 100644
7255--- a/arch/parisc/include/asm/pgalloc.h
7256+++ b/arch/parisc/include/asm/pgalloc.h
7257@@ -61,6 +61,11 @@ static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmd)
7258 (__u32)(__pa((unsigned long)pmd) >> PxD_VALUE_SHIFT));
7259 }
7260
7261+static inline void pgd_populate_kernel(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmd)
7262+{
7263+ pgd_populate(mm, pgd, pmd);
7264+}
7265+
7266 static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address)
7267 {
7268 pmd_t *pmd = (pmd_t *)__get_free_pages(GFP_KERNEL|__GFP_REPEAT,
7269@@ -96,6 +101,7 @@ static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
7270 #define pmd_alloc_one(mm, addr) ({ BUG(); ((pmd_t *)2); })
7271 #define pmd_free(mm, x) do { } while (0)
7272 #define pgd_populate(mm, pmd, pte) BUG()
7273+#define pgd_populate_kernel(mm, pmd, pte) BUG()
7274
7275 #endif
7276
7277diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h
7278index 15207b9..3209e65 100644
7279--- a/arch/parisc/include/asm/pgtable.h
7280+++ b/arch/parisc/include/asm/pgtable.h
7281@@ -215,6 +215,17 @@ extern void purge_tlb_entries(struct mm_struct *, unsigned long);
7282 #define PAGE_EXECREAD __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_EXEC |_PAGE_ACCESSED)
7283 #define PAGE_COPY PAGE_EXECREAD
7284 #define PAGE_RWX __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_WRITE | _PAGE_EXEC |_PAGE_ACCESSED)
7285+
7286+#ifdef CONFIG_PAX_PAGEEXEC
7287+# define PAGE_SHARED_NOEXEC __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_WRITE | _PAGE_ACCESSED)
7288+# define PAGE_COPY_NOEXEC __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_ACCESSED)
7289+# define PAGE_READONLY_NOEXEC __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_ACCESSED)
7290+#else
7291+# define PAGE_SHARED_NOEXEC PAGE_SHARED
7292+# define PAGE_COPY_NOEXEC PAGE_COPY
7293+# define PAGE_READONLY_NOEXEC PAGE_READONLY
7294+#endif
7295+
7296 #define PAGE_KERNEL __pgprot(_PAGE_KERNEL)
7297 #define PAGE_KERNEL_EXEC __pgprot(_PAGE_KERNEL_EXEC)
7298 #define PAGE_KERNEL_RWX __pgprot(_PAGE_KERNEL_RWX)
7299diff --git a/arch/parisc/include/asm/uaccess.h b/arch/parisc/include/asm/uaccess.h
7300index 0abdd4c..1af92f0 100644
7301--- a/arch/parisc/include/asm/uaccess.h
7302+++ b/arch/parisc/include/asm/uaccess.h
7303@@ -243,10 +243,10 @@ static inline unsigned long __must_check copy_from_user(void *to,
7304 const void __user *from,
7305 unsigned long n)
7306 {
7307- int sz = __compiletime_object_size(to);
7308+ size_t sz = __compiletime_object_size(to);
7309 int ret = -EFAULT;
7310
7311- if (likely(sz == -1 || !__builtin_constant_p(n) || sz >= n))
7312+ if (likely(sz == (size_t)-1 || !__builtin_constant_p(n) || sz >= n))
7313 ret = __copy_from_user(to, from, n);
7314 else
7315 copy_from_user_overflow();
7316diff --git a/arch/parisc/kernel/module.c b/arch/parisc/kernel/module.c
7317index 3c63a82..b1d6ee9 100644
7318--- a/arch/parisc/kernel/module.c
7319+++ b/arch/parisc/kernel/module.c
7320@@ -98,16 +98,38 @@
7321
7322 /* three functions to determine where in the module core
7323 * or init pieces the location is */
7324+static inline int in_init_rx(struct module *me, void *loc)
7325+{
7326+ return (loc >= me->module_init_rx &&
7327+ loc < (me->module_init_rx + me->init_size_rx));
7328+}
7329+
7330+static inline int in_init_rw(struct module *me, void *loc)
7331+{
7332+ return (loc >= me->module_init_rw &&
7333+ loc < (me->module_init_rw + me->init_size_rw));
7334+}
7335+
7336 static inline int in_init(struct module *me, void *loc)
7337 {
7338- return (loc >= me->module_init &&
7339- loc <= (me->module_init + me->init_size));
7340+ return in_init_rx(me, loc) || in_init_rw(me, loc);
7341+}
7342+
7343+static inline int in_core_rx(struct module *me, void *loc)
7344+{
7345+ return (loc >= me->module_core_rx &&
7346+ loc < (me->module_core_rx + me->core_size_rx));
7347+}
7348+
7349+static inline int in_core_rw(struct module *me, void *loc)
7350+{
7351+ return (loc >= me->module_core_rw &&
7352+ loc < (me->module_core_rw + me->core_size_rw));
7353 }
7354
7355 static inline int in_core(struct module *me, void *loc)
7356 {
7357- return (loc >= me->module_core &&
7358- loc <= (me->module_core + me->core_size));
7359+ return in_core_rx(me, loc) || in_core_rw(me, loc);
7360 }
7361
7362 static inline int in_local(struct module *me, void *loc)
7363@@ -367,13 +389,13 @@ int module_frob_arch_sections(CONST Elf_Ehdr *hdr,
7364 }
7365
7366 /* align things a bit */
7367- me->core_size = ALIGN(me->core_size, 16);
7368- me->arch.got_offset = me->core_size;
7369- me->core_size += gots * sizeof(struct got_entry);
7370+ me->core_size_rw = ALIGN(me->core_size_rw, 16);
7371+ me->arch.got_offset = me->core_size_rw;
7372+ me->core_size_rw += gots * sizeof(struct got_entry);
7373
7374- me->core_size = ALIGN(me->core_size, 16);
7375- me->arch.fdesc_offset = me->core_size;
7376- me->core_size += fdescs * sizeof(Elf_Fdesc);
7377+ me->core_size_rw = ALIGN(me->core_size_rw, 16);
7378+ me->arch.fdesc_offset = me->core_size_rw;
7379+ me->core_size_rw += fdescs * sizeof(Elf_Fdesc);
7380
7381 me->arch.got_max = gots;
7382 me->arch.fdesc_max = fdescs;
7383@@ -391,7 +413,7 @@ static Elf64_Word get_got(struct module *me, unsigned long value, long addend)
7384
7385 BUG_ON(value == 0);
7386
7387- got = me->module_core + me->arch.got_offset;
7388+ got = me->module_core_rw + me->arch.got_offset;
7389 for (i = 0; got[i].addr; i++)
7390 if (got[i].addr == value)
7391 goto out;
7392@@ -409,7 +431,7 @@ static Elf64_Word get_got(struct module *me, unsigned long value, long addend)
7393 #ifdef CONFIG_64BIT
7394 static Elf_Addr get_fdesc(struct module *me, unsigned long value)
7395 {
7396- Elf_Fdesc *fdesc = me->module_core + me->arch.fdesc_offset;
7397+ Elf_Fdesc *fdesc = me->module_core_rw + me->arch.fdesc_offset;
7398
7399 if (!value) {
7400 printk(KERN_ERR "%s: zero OPD requested!\n", me->name);
7401@@ -427,7 +449,7 @@ static Elf_Addr get_fdesc(struct module *me, unsigned long value)
7402
7403 /* Create new one */
7404 fdesc->addr = value;
7405- fdesc->gp = (Elf_Addr)me->module_core + me->arch.got_offset;
7406+ fdesc->gp = (Elf_Addr)me->module_core_rw + me->arch.got_offset;
7407 return (Elf_Addr)fdesc;
7408 }
7409 #endif /* CONFIG_64BIT */
7410@@ -839,7 +861,7 @@ register_unwind_table(struct module *me,
7411
7412 table = (unsigned char *)sechdrs[me->arch.unwind_section].sh_addr;
7413 end = table + sechdrs[me->arch.unwind_section].sh_size;
7414- gp = (Elf_Addr)me->module_core + me->arch.got_offset;
7415+ gp = (Elf_Addr)me->module_core_rw + me->arch.got_offset;
7416
7417 DEBUGP("register_unwind_table(), sect = %d at 0x%p - 0x%p (gp=0x%lx)\n",
7418 me->arch.unwind_section, table, end, gp);
7419diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
7420index 5aba01a..47cdd5a 100644
7421--- a/arch/parisc/kernel/sys_parisc.c
7422+++ b/arch/parisc/kernel/sys_parisc.c
7423@@ -92,6 +92,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
7424 unsigned long task_size = TASK_SIZE;
7425 int do_color_align, last_mmap;
7426 struct vm_unmapped_area_info info;
7427+ unsigned long offset = gr_rand_threadstack_offset(current->mm, filp, flags);
7428
7429 if (len > task_size)
7430 return -ENOMEM;
7431@@ -109,6 +110,10 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
7432 goto found_addr;
7433 }
7434
7435+#ifdef CONFIG_PAX_RANDMMAP
7436+ if (!(mm->pax_flags & MF_PAX_RANDMMAP))
7437+#endif
7438+
7439 if (addr) {
7440 if (do_color_align && last_mmap)
7441 addr = COLOR_ALIGN(addr, last_mmap, pgoff);
7442@@ -127,6 +132,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
7443 info.high_limit = mmap_upper_limit();
7444 info.align_mask = last_mmap ? (PAGE_MASK & (SHM_COLOUR - 1)) : 0;
7445 info.align_offset = shared_align_offset(last_mmap, pgoff);
7446+ info.threadstack_offset = offset;
7447 addr = vm_unmapped_area(&info);
7448
7449 found_addr:
7450@@ -146,6 +152,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
7451 unsigned long addr = addr0;
7452 int do_color_align, last_mmap;
7453 struct vm_unmapped_area_info info;
7454+ unsigned long offset = gr_rand_threadstack_offset(current->mm, filp, flags);
7455
7456 #ifdef CONFIG_64BIT
7457 /* This should only ever run for 32-bit processes. */
7458@@ -170,6 +177,10 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
7459 }
7460
7461 /* requesting a specific address */
7462+#ifdef CONFIG_PAX_RANDMMAP
7463+ if (!(mm->pax_flags & MF_PAX_RANDMMAP))
7464+#endif
7465+
7466 if (addr) {
7467 if (do_color_align && last_mmap)
7468 addr = COLOR_ALIGN(addr, last_mmap, pgoff);
7469@@ -187,6 +198,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
7470 info.high_limit = mm->mmap_base;
7471 info.align_mask = last_mmap ? (PAGE_MASK & (SHM_COLOUR - 1)) : 0;
7472 info.align_offset = shared_align_offset(last_mmap, pgoff);
7473+ info.threadstack_offset = offset;
7474 addr = vm_unmapped_area(&info);
7475 if (!(addr & ~PAGE_MASK))
7476 goto found_addr;
7477@@ -252,6 +264,13 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
7478 mm->mmap_legacy_base = mmap_legacy_base();
7479 mm->mmap_base = mmap_upper_limit();
7480
7481+#ifdef CONFIG_PAX_RANDMMAP
7482+ if (mm->pax_flags & MF_PAX_RANDMMAP) {
7483+ mm->mmap_legacy_base += mm->delta_mmap;
7484+ mm->mmap_base -= mm->delta_mmap + mm->delta_stack;
7485+ }
7486+#endif
7487+
7488 if (mmap_is_legacy()) {
7489 mm->mmap_base = mm->mmap_legacy_base;
7490 mm->get_unmapped_area = arch_get_unmapped_area;
7491diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
7492index 47ee620..1107387 100644
7493--- a/arch/parisc/kernel/traps.c
7494+++ b/arch/parisc/kernel/traps.c
7495@@ -726,9 +726,7 @@ void notrace handle_interruption(int code, struct pt_regs *regs)
7496
7497 down_read(&current->mm->mmap_sem);
7498 vma = find_vma(current->mm,regs->iaoq[0]);
7499- if (vma && (regs->iaoq[0] >= vma->vm_start)
7500- && (vma->vm_flags & VM_EXEC)) {
7501-
7502+ if (vma && (regs->iaoq[0] >= vma->vm_start)) {
7503 fault_address = regs->iaoq[0];
7504 fault_space = regs->iasq[0];
7505
7506diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c
7507index e5120e6..8ddb5cc 100644
7508--- a/arch/parisc/mm/fault.c
7509+++ b/arch/parisc/mm/fault.c
7510@@ -15,6 +15,7 @@
7511 #include <linux/sched.h>
7512 #include <linux/interrupt.h>
7513 #include <linux/module.h>
7514+#include <linux/unistd.h>
7515
7516 #include <asm/uaccess.h>
7517 #include <asm/traps.h>
7518@@ -50,7 +51,7 @@ int show_unhandled_signals = 1;
7519 static unsigned long
7520 parisc_acctyp(unsigned long code, unsigned int inst)
7521 {
7522- if (code == 6 || code == 16)
7523+ if (code == 6 || code == 7 || code == 16)
7524 return VM_EXEC;
7525
7526 switch (inst & 0xf0000000) {
7527@@ -136,6 +137,116 @@ parisc_acctyp(unsigned long code, unsigned int inst)
7528 }
7529 #endif
7530
7531+#ifdef CONFIG_PAX_PAGEEXEC
7532+/*
7533+ * PaX: decide what to do with offenders (instruction_pointer(regs) = fault address)
7534+ *
7535+ * returns 1 when task should be killed
7536+ * 2 when rt_sigreturn trampoline was detected
7537+ * 3 when unpatched PLT trampoline was detected
7538+ */
7539+static int pax_handle_fetch_fault(struct pt_regs *regs)
7540+{
7541+
7542+#ifdef CONFIG_PAX_EMUPLT
7543+ int err;
7544+
7545+ do { /* PaX: unpatched PLT emulation */
7546+ unsigned int bl, depwi;
7547+
7548+ err = get_user(bl, (unsigned int *)instruction_pointer(regs));
7549+ err |= get_user(depwi, (unsigned int *)(instruction_pointer(regs)+4));
7550+
7551+ if (err)
7552+ break;
7553+
7554+ if (bl == 0xEA9F1FDDU && depwi == 0xD6801C1EU) {
7555+ unsigned int ldw, bv, ldw2, addr = instruction_pointer(regs)-12;
7556+
7557+ err = get_user(ldw, (unsigned int *)addr);
7558+ err |= get_user(bv, (unsigned int *)(addr+4));
7559+ err |= get_user(ldw2, (unsigned int *)(addr+8));
7560+
7561+ if (err)
7562+ break;
7563+
7564+ if (ldw == 0x0E801096U &&
7565+ bv == 0xEAC0C000U &&
7566+ ldw2 == 0x0E881095U)
7567+ {
7568+ unsigned int resolver, map;
7569+
7570+ err = get_user(resolver, (unsigned int *)(instruction_pointer(regs)+8));
7571+ err |= get_user(map, (unsigned int *)(instruction_pointer(regs)+12));
7572+ if (err)
7573+ break;
7574+
7575+ regs->gr[20] = instruction_pointer(regs)+8;
7576+ regs->gr[21] = map;
7577+ regs->gr[22] = resolver;
7578+ regs->iaoq[0] = resolver | 3UL;
7579+ regs->iaoq[1] = regs->iaoq[0] + 4;
7580+ return 3;
7581+ }
7582+ }
7583+ } while (0);
7584+#endif
7585+
7586+#ifdef CONFIG_PAX_EMUTRAMP
7587+
7588+#ifndef CONFIG_PAX_EMUSIGRT
7589+ if (!(current->mm->pax_flags & MF_PAX_EMUTRAMP))
7590+ return 1;
7591+#endif
7592+
7593+ do { /* PaX: rt_sigreturn emulation */
7594+ unsigned int ldi1, ldi2, bel, nop;
7595+
7596+ err = get_user(ldi1, (unsigned int *)instruction_pointer(regs));
7597+ err |= get_user(ldi2, (unsigned int *)(instruction_pointer(regs)+4));
7598+ err |= get_user(bel, (unsigned int *)(instruction_pointer(regs)+8));
7599+ err |= get_user(nop, (unsigned int *)(instruction_pointer(regs)+12));
7600+
7601+ if (err)
7602+ break;
7603+
7604+ if ((ldi1 == 0x34190000U || ldi1 == 0x34190002U) &&
7605+ ldi2 == 0x3414015AU &&
7606+ bel == 0xE4008200U &&
7607+ nop == 0x08000240U)
7608+ {
7609+ regs->gr[25] = (ldi1 & 2) >> 1;
7610+ regs->gr[20] = __NR_rt_sigreturn;
7611+ regs->gr[31] = regs->iaoq[1] + 16;
7612+ regs->sr[0] = regs->iasq[1];
7613+ regs->iaoq[0] = 0x100UL;
7614+ regs->iaoq[1] = regs->iaoq[0] + 4;
7615+ regs->iasq[0] = regs->sr[2];
7616+ regs->iasq[1] = regs->sr[2];
7617+ return 2;
7618+ }
7619+ } while (0);
7620+#endif
7621+
7622+ return 1;
7623+}
7624+
7625+void pax_report_insns(struct pt_regs *regs, void *pc, void *sp)
7626+{
7627+ unsigned long i;
7628+
7629+ printk(KERN_ERR "PAX: bytes at PC: ");
7630+ for (i = 0; i < 5; i++) {
7631+ unsigned int c;
7632+ if (get_user(c, (unsigned int *)pc+i))
7633+ printk(KERN_CONT "???????? ");
7634+ else
7635+ printk(KERN_CONT "%08x ", c);
7636+ }
7637+ printk("\n");
7638+}
7639+#endif
7640+
7641 int fixup_exception(struct pt_regs *regs)
7642 {
7643 const struct exception_table_entry *fix;
7644@@ -234,8 +345,33 @@ retry:
7645
7646 good_area:
7647
7648- if ((vma->vm_flags & acc_type) != acc_type)
7649+ if ((vma->vm_flags & acc_type) != acc_type) {
7650+
7651+#ifdef CONFIG_PAX_PAGEEXEC
7652+ if ((mm->pax_flags & MF_PAX_PAGEEXEC) && (acc_type & VM_EXEC) &&
7653+ (address & ~3UL) == instruction_pointer(regs))
7654+ {
7655+ up_read(&mm->mmap_sem);
7656+ switch (pax_handle_fetch_fault(regs)) {
7657+
7658+#ifdef CONFIG_PAX_EMUPLT
7659+ case 3:
7660+ return;
7661+#endif
7662+
7663+#ifdef CONFIG_PAX_EMUTRAMP
7664+ case 2:
7665+ return;
7666+#endif
7667+
7668+ }
7669+ pax_report_fault(regs, (void *)instruction_pointer(regs), (void *)regs->gr[30]);
7670+ do_group_exit(SIGKILL);
7671+ }
7672+#endif
7673+
7674 goto bad_area;
7675+ }
7676
7677 /*
7678 * If for any reason at all we couldn't handle the fault, make
7679diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
7680index 22b0940..309f790 100644
7681--- a/arch/powerpc/Kconfig
7682+++ b/arch/powerpc/Kconfig
7683@@ -409,6 +409,7 @@ config PPC64_SUPPORTS_MEMORY_FAILURE
7684 config KEXEC
7685 bool "kexec system call"
7686 depends on (PPC_BOOK3S || FSL_BOOKE || (44x && !SMP))
7687+ depends on !GRKERNSEC_KMEM
7688 help
7689 kexec is a system call that implements the ability to shutdown your
7690 current kernel, and to start another kernel. It is like a reboot
7691diff --git a/arch/powerpc/include/asm/atomic.h b/arch/powerpc/include/asm/atomic.h
7692index 512d278..d31fadd 100644
7693--- a/arch/powerpc/include/asm/atomic.h
7694+++ b/arch/powerpc/include/asm/atomic.h
7695@@ -12,6 +12,11 @@
7696
7697 #define ATOMIC_INIT(i) { (i) }
7698
7699+#define _ASM_EXTABLE(from, to) \
7700+" .section __ex_table,\"a\"\n" \
7701+ PPC_LONG" " #from ", " #to"\n" \
7702+" .previous\n"
7703+
7704 static __inline__ int atomic_read(const atomic_t *v)
7705 {
7706 int t;
7707@@ -21,39 +26,80 @@ static __inline__ int atomic_read(const atomic_t *v)
7708 return t;
7709 }
7710
7711+static __inline__ int atomic_read_unchecked(const atomic_unchecked_t *v)
7712+{
7713+ int t;
7714+
7715+ __asm__ __volatile__("lwz%U1%X1 %0,%1" : "=r"(t) : "m"(v->counter));
7716+
7717+ return t;
7718+}
7719+
7720 static __inline__ void atomic_set(atomic_t *v, int i)
7721 {
7722 __asm__ __volatile__("stw%U0%X0 %1,%0" : "=m"(v->counter) : "r"(i));
7723 }
7724
7725-#define ATOMIC_OP(op, asm_op) \
7726-static __inline__ void atomic_##op(int a, atomic_t *v) \
7727+static __inline__ void atomic_set_unchecked(atomic_unchecked_t *v, int i)
7728+{
7729+ __asm__ __volatile__("stw%U0%X0 %1,%0" : "=m"(v->counter) : "r"(i));
7730+}
7731+
7732+#ifdef CONFIG_PAX_REFCOUNT
7733+#define __REFCOUNT_OP(op) op##o.
7734+#define __OVERFLOW_PRE \
7735+ " mcrxr cr0\n"
7736+#define __OVERFLOW_POST \
7737+ " bf 4*cr0+so, 3f\n" \
7738+ "2: .long 0x00c00b00\n" \
7739+ "3:\n"
7740+#define __OVERFLOW_EXTABLE \
7741+ "\n4:\n"
7742+ _ASM_EXTABLE(2b, 4b)
7743+#else
7744+#define __REFCOUNT_OP(op) op
7745+#define __OVERFLOW_PRE
7746+#define __OVERFLOW_POST
7747+#define __OVERFLOW_EXTABLE
7748+#endif
7749+
7750+#define __ATOMIC_OP(op, suffix, pre_op, asm_op, post_op, extable) \
7751+static inline void atomic_##op##suffix(int a, atomic##suffix##_t *v) \
7752 { \
7753 int t; \
7754 \
7755 __asm__ __volatile__( \
7756-"1: lwarx %0,0,%3 # atomic_" #op "\n" \
7757+"1: lwarx %0,0,%3 # atomic_" #op #suffix "\n" \
7758+ pre_op \
7759 #asm_op " %0,%2,%0\n" \
7760+ post_op \
7761 PPC405_ERR77(0,%3) \
7762 " stwcx. %0,0,%3 \n" \
7763 " bne- 1b\n" \
7764+ extable \
7765 : "=&r" (t), "+m" (v->counter) \
7766 : "r" (a), "r" (&v->counter) \
7767 : "cc"); \
7768 } \
7769
7770-#define ATOMIC_OP_RETURN(op, asm_op) \
7771-static __inline__ int atomic_##op##_return(int a, atomic_t *v) \
7772+#define ATOMIC_OP(op, asm_op) __ATOMIC_OP(op, , , asm_op, , ) \
7773+ __ATOMIC_OP(op, _unchecked, __OVERFLOW_PRE, __REFCOUNT_OP(asm_op), __OVERFLOW_POST, __OVERFLOW_EXTABLE)
7774+
7775+#define __ATOMIC_OP_RETURN(op, suffix, pre_op, asm_op, post_op, extable)\
7776+static inline int atomic_##op##_return##suffix(int a, atomic##suffix##_t *v)\
7777 { \
7778 int t; \
7779 \
7780 __asm__ __volatile__( \
7781 PPC_ATOMIC_ENTRY_BARRIER \
7782-"1: lwarx %0,0,%2 # atomic_" #op "_return\n" \
7783+"1: lwarx %0,0,%2 # atomic_" #op "_return" #suffix "\n" \
7784+ pre_op \
7785 #asm_op " %0,%1,%0\n" \
7786+ post_op \
7787 PPC405_ERR77(0,%2) \
7788 " stwcx. %0,0,%2 \n" \
7789 " bne- 1b\n" \
7790+ extable \
7791 PPC_ATOMIC_EXIT_BARRIER \
7792 : "=&r" (t) \
7793 : "r" (a), "r" (&v->counter) \
7794@@ -62,6 +108,9 @@ static __inline__ int atomic_##op##_return(int a, atomic_t *v) \
7795 return t; \
7796 }
7797
7798+#define ATOMIC_OP_RETURN(op, asm_op) __ATOMIC_OP_RETURN(op, , , asm_op, , )\
7799+ __ATOMIC_OP_RETURN(op, _unchecked, __OVERFLOW_PRE, __REFCOUNT_OP(asm_op), __OVERFLOW_POST, __OVERFLOW_EXTABLE)
7800+
7801 #define ATOMIC_OPS(op, asm_op) ATOMIC_OP(op, asm_op) ATOMIC_OP_RETURN(op, asm_op)
7802
7803 ATOMIC_OPS(add, add)
7804@@ -69,42 +118,29 @@ ATOMIC_OPS(sub, subf)
7805
7806 #undef ATOMIC_OPS
7807 #undef ATOMIC_OP_RETURN
7808+#undef __ATOMIC_OP_RETURN
7809 #undef ATOMIC_OP
7810+#undef __ATOMIC_OP
7811
7812 #define atomic_add_negative(a, v) (atomic_add_return((a), (v)) < 0)
7813
7814-static __inline__ void atomic_inc(atomic_t *v)
7815-{
7816- int t;
7817+/*
7818+ * atomic_inc - increment atomic variable
7819+ * @v: pointer of type atomic_t
7820+ *
7821+ * Automatically increments @v by 1
7822+ */
7823+#define atomic_inc(v) atomic_add(1, (v))
7824+#define atomic_inc_return(v) atomic_add_return(1, (v))
7825
7826- __asm__ __volatile__(
7827-"1: lwarx %0,0,%2 # atomic_inc\n\
7828- addic %0,%0,1\n"
7829- PPC405_ERR77(0,%2)
7830-" stwcx. %0,0,%2 \n\
7831- bne- 1b"
7832- : "=&r" (t), "+m" (v->counter)
7833- : "r" (&v->counter)
7834- : "cc", "xer");
7835+static inline void atomic_inc_unchecked(atomic_unchecked_t *v)
7836+{
7837+ atomic_add_unchecked(1, v);
7838 }
7839
7840-static __inline__ int atomic_inc_return(atomic_t *v)
7841+static inline int atomic_inc_return_unchecked(atomic_unchecked_t *v)
7842 {
7843- int t;
7844-
7845- __asm__ __volatile__(
7846- PPC_ATOMIC_ENTRY_BARRIER
7847-"1: lwarx %0,0,%1 # atomic_inc_return\n\
7848- addic %0,%0,1\n"
7849- PPC405_ERR77(0,%1)
7850-" stwcx. %0,0,%1 \n\
7851- bne- 1b"
7852- PPC_ATOMIC_EXIT_BARRIER
7853- : "=&r" (t)
7854- : "r" (&v->counter)
7855- : "cc", "xer", "memory");
7856-
7857- return t;
7858+ return atomic_add_return_unchecked(1, v);
7859 }
7860
7861 /*
7862@@ -117,43 +153,38 @@ static __inline__ int atomic_inc_return(atomic_t *v)
7863 */
7864 #define atomic_inc_and_test(v) (atomic_inc_return(v) == 0)
7865
7866-static __inline__ void atomic_dec(atomic_t *v)
7867+static __inline__ int atomic_inc_and_test_unchecked(atomic_unchecked_t *v)
7868 {
7869- int t;
7870-
7871- __asm__ __volatile__(
7872-"1: lwarx %0,0,%2 # atomic_dec\n\
7873- addic %0,%0,-1\n"
7874- PPC405_ERR77(0,%2)\
7875-" stwcx. %0,0,%2\n\
7876- bne- 1b"
7877- : "=&r" (t), "+m" (v->counter)
7878- : "r" (&v->counter)
7879- : "cc", "xer");
7880+ return atomic_add_return_unchecked(1, v) == 0;
7881 }
7882
7883-static __inline__ int atomic_dec_return(atomic_t *v)
7884+/*
7885+ * atomic_dec - decrement atomic variable
7886+ * @v: pointer of type atomic_t
7887+ *
7888+ * Atomically decrements @v by 1
7889+ */
7890+#define atomic_dec(v) atomic_sub(1, (v))
7891+#define atomic_dec_return(v) atomic_sub_return(1, (v))
7892+
7893+static __inline__ void atomic_dec_unchecked(atomic_unchecked_t *v)
7894 {
7895- int t;
7896-
7897- __asm__ __volatile__(
7898- PPC_ATOMIC_ENTRY_BARRIER
7899-"1: lwarx %0,0,%1 # atomic_dec_return\n\
7900- addic %0,%0,-1\n"
7901- PPC405_ERR77(0,%1)
7902-" stwcx. %0,0,%1\n\
7903- bne- 1b"
7904- PPC_ATOMIC_EXIT_BARRIER
7905- : "=&r" (t)
7906- : "r" (&v->counter)
7907- : "cc", "xer", "memory");
7908-
7909- return t;
7910+ atomic_sub_unchecked(1, v);
7911 }
7912
7913 #define atomic_cmpxchg(v, o, n) (cmpxchg(&((v)->counter), (o), (n)))
7914 #define atomic_xchg(v, new) (xchg(&((v)->counter), new))
7915
7916+static inline int atomic_cmpxchg_unchecked(atomic_unchecked_t *v, int old, int new)
7917+{
7918+ return cmpxchg(&(v->counter), old, new);
7919+}
7920+
7921+static inline int atomic_xchg_unchecked(atomic_unchecked_t *v, int new)
7922+{
7923+ return xchg(&(v->counter), new);
7924+}
7925+
7926 /**
7927 * __atomic_add_unless - add unless the number is a given value
7928 * @v: pointer of type atomic_t
7929@@ -171,11 +202,27 @@ static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u)
7930 PPC_ATOMIC_ENTRY_BARRIER
7931 "1: lwarx %0,0,%1 # __atomic_add_unless\n\
7932 cmpw 0,%0,%3 \n\
7933- beq- 2f \n\
7934- add %0,%2,%0 \n"
7935+ beq- 2f \n"
7936+
7937+#ifdef CONFIG_PAX_REFCOUNT
7938+" mcrxr cr0\n"
7939+" addo. %0,%2,%0\n"
7940+" bf 4*cr0+so, 4f\n"
7941+"3:.long " "0x00c00b00""\n"
7942+"4:\n"
7943+#else
7944+ "add %0,%2,%0 \n"
7945+#endif
7946+
7947 PPC405_ERR77(0,%2)
7948 " stwcx. %0,0,%1 \n\
7949 bne- 1b \n"
7950+"5:"
7951+
7952+#ifdef CONFIG_PAX_REFCOUNT
7953+ _ASM_EXTABLE(3b, 5b)
7954+#endif
7955+
7956 PPC_ATOMIC_EXIT_BARRIER
7957 " subf %0,%2,%0 \n\
7958 2:"
7959@@ -248,6 +295,11 @@ static __inline__ int atomic_dec_if_positive(atomic_t *v)
7960 }
7961 #define atomic_dec_if_positive atomic_dec_if_positive
7962
7963+#define smp_mb__before_atomic_dec() smp_mb()
7964+#define smp_mb__after_atomic_dec() smp_mb()
7965+#define smp_mb__before_atomic_inc() smp_mb()
7966+#define smp_mb__after_atomic_inc() smp_mb()
7967+
7968 #ifdef __powerpc64__
7969
7970 #define ATOMIC64_INIT(i) { (i) }
7971@@ -261,37 +313,60 @@ static __inline__ long atomic64_read(const atomic64_t *v)
7972 return t;
7973 }
7974
7975+static __inline__ long atomic64_read_unchecked(const atomic64_unchecked_t *v)
7976+{
7977+ long t;
7978+
7979+ __asm__ __volatile__("ld%U1%X1 %0,%1" : "=r"(t) : "m"(v->counter));
7980+
7981+ return t;
7982+}
7983+
7984 static __inline__ void atomic64_set(atomic64_t *v, long i)
7985 {
7986 __asm__ __volatile__("std%U0%X0 %1,%0" : "=m"(v->counter) : "r"(i));
7987 }
7988
7989-#define ATOMIC64_OP(op, asm_op) \
7990-static __inline__ void atomic64_##op(long a, atomic64_t *v) \
7991+static __inline__ void atomic64_set_unchecked(atomic64_unchecked_t *v, long i)
7992+{
7993+ __asm__ __volatile__("std%U0%X0 %1,%0" : "=m"(v->counter) : "r"(i));
7994+}
7995+
7996+#define __ATOMIC64_OP(op, suffix, pre_op, asm_op, post_op, extable) \
7997+static inline void atomic64_##op##suffix(long a, atomic64##suffix##_t *v)\
7998 { \
7999 long t; \
8000 \
8001 __asm__ __volatile__( \
8002 "1: ldarx %0,0,%3 # atomic64_" #op "\n" \
8003+ pre_op \
8004 #asm_op " %0,%2,%0\n" \
8005+ post_op \
8006 " stdcx. %0,0,%3 \n" \
8007 " bne- 1b\n" \
8008+ extable \
8009 : "=&r" (t), "+m" (v->counter) \
8010 : "r" (a), "r" (&v->counter) \
8011 : "cc"); \
8012 }
8013
8014-#define ATOMIC64_OP_RETURN(op, asm_op) \
8015-static __inline__ long atomic64_##op##_return(long a, atomic64_t *v) \
8016+#define ATOMIC64_OP(op, asm_op) __ATOMIC64_OP(op, , , asm_op, , ) \
8017+ __ATOMIC64_OP(op, _unchecked, __OVERFLOW_PRE, __REFCOUNT_OP(asm_op), __OVERFLOW_POST, __OVERFLOW_EXTABLE)
8018+
8019+#define __ATOMIC64_OP_RETURN(op, suffix, pre_op, asm_op, post_op, extable)\
8020+static inline long atomic64_##op##_return##suffix(long a, atomic64##suffix##_t *v)\
8021 { \
8022 long t; \
8023 \
8024 __asm__ __volatile__( \
8025 PPC_ATOMIC_ENTRY_BARRIER \
8026 "1: ldarx %0,0,%2 # atomic64_" #op "_return\n" \
8027+ pre_op \
8028 #asm_op " %0,%1,%0\n" \
8029+ post_op \
8030 " stdcx. %0,0,%2 \n" \
8031 " bne- 1b\n" \
8032+ extable \
8033 PPC_ATOMIC_EXIT_BARRIER \
8034 : "=&r" (t) \
8035 : "r" (a), "r" (&v->counter) \
8036@@ -300,6 +375,9 @@ static __inline__ long atomic64_##op##_return(long a, atomic64_t *v) \
8037 return t; \
8038 }
8039
8040+#define ATOMIC64_OP_RETURN(op, asm_op) __ATOMIC64_OP_RETURN(op, , , asm_op, , )\
8041+ __ATOMIC64_OP_RETURN(op, _unchecked, __OVERFLOW_PRE, __REFCOUNT_OP(asm_op), __OVERFLOW_POST, __OVERFLOW_EXTABLE)
8042+
8043 #define ATOMIC64_OPS(op, asm_op) ATOMIC64_OP(op, asm_op) ATOMIC64_OP_RETURN(op, asm_op)
8044
8045 ATOMIC64_OPS(add, add)
8046@@ -307,40 +385,33 @@ ATOMIC64_OPS(sub, subf)
8047
8048 #undef ATOMIC64_OPS
8049 #undef ATOMIC64_OP_RETURN
8050+#undef __ATOMIC64_OP_RETURN
8051 #undef ATOMIC64_OP
8052+#undef __ATOMIC64_OP
8053+#undef __OVERFLOW_EXTABLE
8054+#undef __OVERFLOW_POST
8055+#undef __OVERFLOW_PRE
8056+#undef __REFCOUNT_OP
8057
8058 #define atomic64_add_negative(a, v) (atomic64_add_return((a), (v)) < 0)
8059
8060-static __inline__ void atomic64_inc(atomic64_t *v)
8061-{
8062- long t;
8063+/*
8064+ * atomic64_inc - increment atomic variable
8065+ * @v: pointer of type atomic64_t
8066+ *
8067+ * Automatically increments @v by 1
8068+ */
8069+#define atomic64_inc(v) atomic64_add(1, (v))
8070+#define atomic64_inc_return(v) atomic64_add_return(1, (v))
8071
8072- __asm__ __volatile__(
8073-"1: ldarx %0,0,%2 # atomic64_inc\n\
8074- addic %0,%0,1\n\
8075- stdcx. %0,0,%2 \n\
8076- bne- 1b"
8077- : "=&r" (t), "+m" (v->counter)
8078- : "r" (&v->counter)
8079- : "cc", "xer");
8080+static inline void atomic64_inc_unchecked(atomic64_unchecked_t *v)
8081+{
8082+ atomic64_add_unchecked(1, v);
8083 }
8084
8085-static __inline__ long atomic64_inc_return(atomic64_t *v)
8086+static inline long atomic64_inc_return_unchecked(atomic64_unchecked_t *v)
8087 {
8088- long t;
8089-
8090- __asm__ __volatile__(
8091- PPC_ATOMIC_ENTRY_BARRIER
8092-"1: ldarx %0,0,%1 # atomic64_inc_return\n\
8093- addic %0,%0,1\n\
8094- stdcx. %0,0,%1 \n\
8095- bne- 1b"
8096- PPC_ATOMIC_EXIT_BARRIER
8097- : "=&r" (t)
8098- : "r" (&v->counter)
8099- : "cc", "xer", "memory");
8100-
8101- return t;
8102+ return atomic64_add_return_unchecked(1, v);
8103 }
8104
8105 /*
8106@@ -353,36 +424,18 @@ static __inline__ long atomic64_inc_return(atomic64_t *v)
8107 */
8108 #define atomic64_inc_and_test(v) (atomic64_inc_return(v) == 0)
8109
8110-static __inline__ void atomic64_dec(atomic64_t *v)
8111+/*
8112+ * atomic64_dec - decrement atomic variable
8113+ * @v: pointer of type atomic64_t
8114+ *
8115+ * Atomically decrements @v by 1
8116+ */
8117+#define atomic64_dec(v) atomic64_sub(1, (v))
8118+#define atomic64_dec_return(v) atomic64_sub_return(1, (v))
8119+
8120+static __inline__ void atomic64_dec_unchecked(atomic64_unchecked_t *v)
8121 {
8122- long t;
8123-
8124- __asm__ __volatile__(
8125-"1: ldarx %0,0,%2 # atomic64_dec\n\
8126- addic %0,%0,-1\n\
8127- stdcx. %0,0,%2\n\
8128- bne- 1b"
8129- : "=&r" (t), "+m" (v->counter)
8130- : "r" (&v->counter)
8131- : "cc", "xer");
8132-}
8133-
8134-static __inline__ long atomic64_dec_return(atomic64_t *v)
8135-{
8136- long t;
8137-
8138- __asm__ __volatile__(
8139- PPC_ATOMIC_ENTRY_BARRIER
8140-"1: ldarx %0,0,%1 # atomic64_dec_return\n\
8141- addic %0,%0,-1\n\
8142- stdcx. %0,0,%1\n\
8143- bne- 1b"
8144- PPC_ATOMIC_EXIT_BARRIER
8145- : "=&r" (t)
8146- : "r" (&v->counter)
8147- : "cc", "xer", "memory");
8148-
8149- return t;
8150+ atomic64_sub_unchecked(1, v);
8151 }
8152
8153 #define atomic64_sub_and_test(a, v) (atomic64_sub_return((a), (v)) == 0)
8154@@ -415,6 +468,16 @@ static __inline__ long atomic64_dec_if_positive(atomic64_t *v)
8155 #define atomic64_cmpxchg(v, o, n) (cmpxchg(&((v)->counter), (o), (n)))
8156 #define atomic64_xchg(v, new) (xchg(&((v)->counter), new))
8157
8158+static inline long atomic64_cmpxchg_unchecked(atomic64_unchecked_t *v, long old, long new)
8159+{
8160+ return cmpxchg(&(v->counter), old, new);
8161+}
8162+
8163+static inline long atomic64_xchg_unchecked(atomic64_unchecked_t *v, long new)
8164+{
8165+ return xchg(&(v->counter), new);
8166+}
8167+
8168 /**
8169 * atomic64_add_unless - add unless the number is a given value
8170 * @v: pointer of type atomic64_t
8171@@ -430,13 +493,29 @@ static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u)
8172
8173 __asm__ __volatile__ (
8174 PPC_ATOMIC_ENTRY_BARRIER
8175-"1: ldarx %0,0,%1 # __atomic_add_unless\n\
8176+"1: ldarx %0,0,%1 # atomic64_add_unless\n\
8177 cmpd 0,%0,%3 \n\
8178- beq- 2f \n\
8179- add %0,%2,%0 \n"
8180+ beq- 2f \n"
8181+
8182+#ifdef CONFIG_PAX_REFCOUNT
8183+" mcrxr cr0\n"
8184+" addo. %0,%2,%0\n"
8185+" bf 4*cr0+so, 4f\n"
8186+"3:.long " "0x00c00b00""\n"
8187+"4:\n"
8188+#else
8189+ "add %0,%2,%0 \n"
8190+#endif
8191+
8192 " stdcx. %0,0,%1 \n\
8193 bne- 1b \n"
8194 PPC_ATOMIC_EXIT_BARRIER
8195+"5:"
8196+
8197+#ifdef CONFIG_PAX_REFCOUNT
8198+ _ASM_EXTABLE(3b, 5b)
8199+#endif
8200+
8201 " subf %0,%2,%0 \n\
8202 2:"
8203 : "=&r" (t)
8204diff --git a/arch/powerpc/include/asm/barrier.h b/arch/powerpc/include/asm/barrier.h
8205index a3bf5be..e03ba81 100644
8206--- a/arch/powerpc/include/asm/barrier.h
8207+++ b/arch/powerpc/include/asm/barrier.h
8208@@ -76,7 +76,7 @@
8209 do { \
8210 compiletime_assert_atomic_type(*p); \
8211 smp_lwsync(); \
8212- ACCESS_ONCE(*p) = (v); \
8213+ ACCESS_ONCE_RW(*p) = (v); \
8214 } while (0)
8215
8216 #define smp_load_acquire(p) \
8217diff --git a/arch/powerpc/include/asm/cache.h b/arch/powerpc/include/asm/cache.h
8218index 34a05a1..a1f2c67 100644
8219--- a/arch/powerpc/include/asm/cache.h
8220+++ b/arch/powerpc/include/asm/cache.h
8221@@ -4,6 +4,7 @@
8222 #ifdef __KERNEL__
8223
8224 #include <asm/reg.h>
8225+#include <linux/const.h>
8226
8227 /* bytes per L1 cache line */
8228 #if defined(CONFIG_8xx) || defined(CONFIG_403GCX)
8229@@ -23,7 +24,7 @@
8230 #define L1_CACHE_SHIFT 7
8231 #endif
8232
8233-#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
8234+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
8235
8236 #define SMP_CACHE_BYTES L1_CACHE_BYTES
8237
8238diff --git a/arch/powerpc/include/asm/elf.h b/arch/powerpc/include/asm/elf.h
8239index 57d289a..b36c98c 100644
8240--- a/arch/powerpc/include/asm/elf.h
8241+++ b/arch/powerpc/include/asm/elf.h
8242@@ -30,6 +30,18 @@
8243
8244 #define ELF_ET_DYN_BASE 0x20000000
8245
8246+#ifdef CONFIG_PAX_ASLR
8247+#define PAX_ELF_ET_DYN_BASE (0x10000000UL)
8248+
8249+#ifdef __powerpc64__
8250+#define PAX_DELTA_MMAP_LEN (is_32bit_task() ? 16 : 28)
8251+#define PAX_DELTA_STACK_LEN (is_32bit_task() ? 16 : 28)
8252+#else
8253+#define PAX_DELTA_MMAP_LEN 15
8254+#define PAX_DELTA_STACK_LEN 15
8255+#endif
8256+#endif
8257+
8258 #define ELF_CORE_EFLAGS (is_elf2_task() ? 2 : 0)
8259
8260 /*
8261@@ -128,10 +140,6 @@ extern int arch_setup_additional_pages(struct linux_binprm *bprm,
8262 (0x7ff >> (PAGE_SHIFT - 12)) : \
8263 (0x3ffff >> (PAGE_SHIFT - 12)))
8264
8265-extern unsigned long arch_randomize_brk(struct mm_struct *mm);
8266-#define arch_randomize_brk arch_randomize_brk
8267-
8268-
8269 #ifdef CONFIG_SPU_BASE
8270 /* Notes used in ET_CORE. Note name is "SPU/<fd>/<filename>". */
8271 #define NT_SPU 1
8272diff --git a/arch/powerpc/include/asm/exec.h b/arch/powerpc/include/asm/exec.h
8273index 8196e9c..d83a9f3 100644
8274--- a/arch/powerpc/include/asm/exec.h
8275+++ b/arch/powerpc/include/asm/exec.h
8276@@ -4,6 +4,6 @@
8277 #ifndef _ASM_POWERPC_EXEC_H
8278 #define _ASM_POWERPC_EXEC_H
8279
8280-extern unsigned long arch_align_stack(unsigned long sp);
8281+#define arch_align_stack(x) ((x) & ~0xfUL)
8282
8283 #endif /* _ASM_POWERPC_EXEC_H */
8284diff --git a/arch/powerpc/include/asm/kmap_types.h b/arch/powerpc/include/asm/kmap_types.h
8285index 5acabbd..7ea14fa 100644
8286--- a/arch/powerpc/include/asm/kmap_types.h
8287+++ b/arch/powerpc/include/asm/kmap_types.h
8288@@ -10,7 +10,7 @@
8289 * 2 of the License, or (at your option) any later version.
8290 */
8291
8292-#define KM_TYPE_NR 16
8293+#define KM_TYPE_NR 17
8294
8295 #endif /* __KERNEL__ */
8296 #endif /* _ASM_POWERPC_KMAP_TYPES_H */
8297diff --git a/arch/powerpc/include/asm/local.h b/arch/powerpc/include/asm/local.h
8298index b8da913..c02b593 100644
8299--- a/arch/powerpc/include/asm/local.h
8300+++ b/arch/powerpc/include/asm/local.h
8301@@ -9,21 +9,65 @@ typedef struct
8302 atomic_long_t a;
8303 } local_t;
8304
8305+typedef struct
8306+{
8307+ atomic_long_unchecked_t a;
8308+} local_unchecked_t;
8309+
8310 #define LOCAL_INIT(i) { ATOMIC_LONG_INIT(i) }
8311
8312 #define local_read(l) atomic_long_read(&(l)->a)
8313+#define local_read_unchecked(l) atomic_long_read_unchecked(&(l)->a)
8314 #define local_set(l,i) atomic_long_set(&(l)->a, (i))
8315+#define local_set_unchecked(l,i) atomic_long_set_unchecked(&(l)->a, (i))
8316
8317 #define local_add(i,l) atomic_long_add((i),(&(l)->a))
8318+#define local_add_unchecked(i,l) atomic_long_add_unchecked((i),(&(l)->a))
8319 #define local_sub(i,l) atomic_long_sub((i),(&(l)->a))
8320+#define local_sub_unchecked(i,l) atomic_long_sub_unchecked((i),(&(l)->a))
8321 #define local_inc(l) atomic_long_inc(&(l)->a)
8322+#define local_inc_unchecked(l) atomic_long_inc_unchecked(&(l)->a)
8323 #define local_dec(l) atomic_long_dec(&(l)->a)
8324+#define local_dec_unchecked(l) atomic_long_dec_unchecked(&(l)->a)
8325
8326 static __inline__ long local_add_return(long a, local_t *l)
8327 {
8328 long t;
8329
8330 __asm__ __volatile__(
8331+"1:" PPC_LLARX(%0,0,%2,0) " # local_add_return\n"
8332+
8333+#ifdef CONFIG_PAX_REFCOUNT
8334+" mcrxr cr0\n"
8335+" addo. %0,%1,%0\n"
8336+" bf 4*cr0+so, 3f\n"
8337+"2:.long " "0x00c00b00""\n"
8338+#else
8339+" add %0,%1,%0\n"
8340+#endif
8341+
8342+"3:\n"
8343+ PPC405_ERR77(0,%2)
8344+ PPC_STLCX "%0,0,%2 \n\
8345+ bne- 1b"
8346+
8347+#ifdef CONFIG_PAX_REFCOUNT
8348+"\n4:\n"
8349+ _ASM_EXTABLE(2b, 4b)
8350+#endif
8351+
8352+ : "=&r" (t)
8353+ : "r" (a), "r" (&(l->a.counter))
8354+ : "cc", "memory");
8355+
8356+ return t;
8357+}
8358+
8359+static __inline__ long local_add_return_unchecked(long a, local_unchecked_t *l)
8360+{
8361+ long t;
8362+
8363+ __asm__ __volatile__(
8364 "1:" PPC_LLARX(%0,0,%2,0) " # local_add_return\n\
8365 add %0,%1,%0\n"
8366 PPC405_ERR77(0,%2)
8367@@ -101,6 +145,8 @@ static __inline__ long local_dec_return(local_t *l)
8368
8369 #define local_cmpxchg(l, o, n) \
8370 (cmpxchg_local(&((l)->a.counter), (o), (n)))
8371+#define local_cmpxchg_unchecked(l, o, n) \
8372+ (cmpxchg_local(&((l)->a.counter), (o), (n)))
8373 #define local_xchg(l, n) (xchg_local(&((l)->a.counter), (n)))
8374
8375 /**
8376diff --git a/arch/powerpc/include/asm/mman.h b/arch/powerpc/include/asm/mman.h
8377index 8565c25..2865190 100644
8378--- a/arch/powerpc/include/asm/mman.h
8379+++ b/arch/powerpc/include/asm/mman.h
8380@@ -24,7 +24,7 @@ static inline unsigned long arch_calc_vm_prot_bits(unsigned long prot)
8381 }
8382 #define arch_calc_vm_prot_bits(prot) arch_calc_vm_prot_bits(prot)
8383
8384-static inline pgprot_t arch_vm_get_page_prot(unsigned long vm_flags)
8385+static inline pgprot_t arch_vm_get_page_prot(vm_flags_t vm_flags)
8386 {
8387 return (vm_flags & VM_SAO) ? __pgprot(_PAGE_SAO) : __pgprot(0);
8388 }
8389diff --git a/arch/powerpc/include/asm/page.h b/arch/powerpc/include/asm/page.h
8390index 69c0598..2c56964 100644
8391--- a/arch/powerpc/include/asm/page.h
8392+++ b/arch/powerpc/include/asm/page.h
8393@@ -227,8 +227,9 @@ extern long long virt_phys_offset;
8394 * and needs to be executable. This means the whole heap ends
8395 * up being executable.
8396 */
8397-#define VM_DATA_DEFAULT_FLAGS32 (VM_READ | VM_WRITE | VM_EXEC | \
8398- VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
8399+#define VM_DATA_DEFAULT_FLAGS32 \
8400+ (((current->personality & READ_IMPLIES_EXEC) ? VM_EXEC : 0) | \
8401+ VM_READ | VM_WRITE | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
8402
8403 #define VM_DATA_DEFAULT_FLAGS64 (VM_READ | VM_WRITE | \
8404 VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
8405@@ -256,6 +257,9 @@ extern long long virt_phys_offset;
8406 #define is_kernel_addr(x) ((x) >= PAGE_OFFSET)
8407 #endif
8408
8409+#define ktla_ktva(addr) (addr)
8410+#define ktva_ktla(addr) (addr)
8411+
8412 #ifndef CONFIG_PPC_BOOK3S_64
8413 /*
8414 * Use the top bit of the higher-level page table entries to indicate whether
8415diff --git a/arch/powerpc/include/asm/page_64.h b/arch/powerpc/include/asm/page_64.h
8416index d908a46..3753f71 100644
8417--- a/arch/powerpc/include/asm/page_64.h
8418+++ b/arch/powerpc/include/asm/page_64.h
8419@@ -172,15 +172,18 @@ do { \
8420 * stack by default, so in the absence of a PT_GNU_STACK program header
8421 * we turn execute permission off.
8422 */
8423-#define VM_STACK_DEFAULT_FLAGS32 (VM_READ | VM_WRITE | VM_EXEC | \
8424- VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
8425+#define VM_STACK_DEFAULT_FLAGS32 \
8426+ (((current->personality & READ_IMPLIES_EXEC) ? VM_EXEC : 0) | \
8427+ VM_READ | VM_WRITE | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
8428
8429 #define VM_STACK_DEFAULT_FLAGS64 (VM_READ | VM_WRITE | \
8430 VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
8431
8432+#ifndef CONFIG_PAX_PAGEEXEC
8433 #define VM_STACK_DEFAULT_FLAGS \
8434 (is_32bit_task() ? \
8435 VM_STACK_DEFAULT_FLAGS32 : VM_STACK_DEFAULT_FLAGS64)
8436+#endif
8437
8438 #include <asm-generic/getorder.h>
8439
8440diff --git a/arch/powerpc/include/asm/pgalloc-64.h b/arch/powerpc/include/asm/pgalloc-64.h
8441index 4b0be20..c15a27d 100644
8442--- a/arch/powerpc/include/asm/pgalloc-64.h
8443+++ b/arch/powerpc/include/asm/pgalloc-64.h
8444@@ -54,6 +54,7 @@ static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
8445 #ifndef CONFIG_PPC_64K_PAGES
8446
8447 #define pgd_populate(MM, PGD, PUD) pgd_set(PGD, PUD)
8448+#define pgd_populate_kernel(MM, PGD, PUD) pgd_populate((MM), (PGD), (PUD))
8449
8450 static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr)
8451 {
8452@@ -71,6 +72,11 @@ static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
8453 pud_set(pud, (unsigned long)pmd);
8454 }
8455
8456+static inline void pud_populate_kernel(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
8457+{
8458+ pud_populate(mm, pud, pmd);
8459+}
8460+
8461 #define pmd_populate(mm, pmd, pte_page) \
8462 pmd_populate_kernel(mm, pmd, page_address(pte_page))
8463 #define pmd_populate_kernel(mm, pmd, pte) pmd_set(pmd, (unsigned long)(pte))
8464@@ -173,6 +179,7 @@ extern void __tlb_remove_table(void *_table);
8465 #endif
8466
8467 #define pud_populate(mm, pud, pmd) pud_set(pud, (unsigned long)pmd)
8468+#define pud_populate_kernel(mm, pud, pmd) pud_populate((mm), (pud), (pmd))
8469
8470 static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd,
8471 pte_t *pte)
8472diff --git a/arch/powerpc/include/asm/pgtable.h b/arch/powerpc/include/asm/pgtable.h
8473index 9835ac4..900430f 100644
8474--- a/arch/powerpc/include/asm/pgtable.h
8475+++ b/arch/powerpc/include/asm/pgtable.h
8476@@ -2,6 +2,7 @@
8477 #define _ASM_POWERPC_PGTABLE_H
8478 #ifdef __KERNEL__
8479
8480+#include <linux/const.h>
8481 #ifndef __ASSEMBLY__
8482 #include <linux/mmdebug.h>
8483 #include <linux/mmzone.h>
8484diff --git a/arch/powerpc/include/asm/pte-hash32.h b/arch/powerpc/include/asm/pte-hash32.h
8485index 62cfb0c..50c6402 100644
8486--- a/arch/powerpc/include/asm/pte-hash32.h
8487+++ b/arch/powerpc/include/asm/pte-hash32.h
8488@@ -20,6 +20,7 @@
8489 #define _PAGE_HASHPTE 0x002 /* hash_page has made an HPTE for this pte */
8490 #define _PAGE_USER 0x004 /* usermode access allowed */
8491 #define _PAGE_GUARDED 0x008 /* G: prohibit speculative access */
8492+#define _PAGE_EXEC _PAGE_GUARDED
8493 #define _PAGE_COHERENT 0x010 /* M: enforce memory coherence (SMP systems) */
8494 #define _PAGE_NO_CACHE 0x020 /* I: cache inhibit */
8495 #define _PAGE_WRITETHRU 0x040 /* W: cache write-through */
8496diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h
8497index af56b5c..f86f3f6 100644
8498--- a/arch/powerpc/include/asm/reg.h
8499+++ b/arch/powerpc/include/asm/reg.h
8500@@ -253,6 +253,7 @@
8501 #define SPRN_DBCR 0x136 /* e300 Data Breakpoint Control Reg */
8502 #define SPRN_DSISR 0x012 /* Data Storage Interrupt Status Register */
8503 #define DSISR_NOHPTE 0x40000000 /* no translation found */
8504+#define DSISR_GUARDED 0x10000000 /* fetch from guarded storage */
8505 #define DSISR_PROTFAULT 0x08000000 /* protection fault */
8506 #define DSISR_ISSTORE 0x02000000 /* access was a store */
8507 #define DSISR_DABRMATCH 0x00400000 /* hit data breakpoint */
8508diff --git a/arch/powerpc/include/asm/smp.h b/arch/powerpc/include/asm/smp.h
8509index d607df5..08dc9ae 100644
8510--- a/arch/powerpc/include/asm/smp.h
8511+++ b/arch/powerpc/include/asm/smp.h
8512@@ -51,7 +51,7 @@ struct smp_ops_t {
8513 int (*cpu_disable)(void);
8514 void (*cpu_die)(unsigned int nr);
8515 int (*cpu_bootable)(unsigned int nr);
8516-};
8517+} __no_const;
8518
8519 extern void smp_send_debugger_break(void);
8520 extern void start_secondary_resume(void);
8521diff --git a/arch/powerpc/include/asm/spinlock.h b/arch/powerpc/include/asm/spinlock.h
8522index 4dbe072..b803275 100644
8523--- a/arch/powerpc/include/asm/spinlock.h
8524+++ b/arch/powerpc/include/asm/spinlock.h
8525@@ -204,13 +204,29 @@ static inline long __arch_read_trylock(arch_rwlock_t *rw)
8526 __asm__ __volatile__(
8527 "1: " PPC_LWARX(%0,0,%1,1) "\n"
8528 __DO_SIGN_EXTEND
8529-" addic. %0,%0,1\n\
8530- ble- 2f\n"
8531+
8532+#ifdef CONFIG_PAX_REFCOUNT
8533+" mcrxr cr0\n"
8534+" addico. %0,%0,1\n"
8535+" bf 4*cr0+so, 3f\n"
8536+"2:.long " "0x00c00b00""\n"
8537+#else
8538+" addic. %0,%0,1\n"
8539+#endif
8540+
8541+"3:\n"
8542+ "ble- 4f\n"
8543 PPC405_ERR77(0,%1)
8544 " stwcx. %0,0,%1\n\
8545 bne- 1b\n"
8546 PPC_ACQUIRE_BARRIER
8547-"2:" : "=&r" (tmp)
8548+"4:"
8549+
8550+#ifdef CONFIG_PAX_REFCOUNT
8551+ _ASM_EXTABLE(2b,4b)
8552+#endif
8553+
8554+ : "=&r" (tmp)
8555 : "r" (&rw->lock)
8556 : "cr0", "xer", "memory");
8557
8558@@ -286,11 +302,27 @@ static inline void arch_read_unlock(arch_rwlock_t *rw)
8559 __asm__ __volatile__(
8560 "# read_unlock\n\t"
8561 PPC_RELEASE_BARRIER
8562-"1: lwarx %0,0,%1\n\
8563- addic %0,%0,-1\n"
8564+"1: lwarx %0,0,%1\n"
8565+
8566+#ifdef CONFIG_PAX_REFCOUNT
8567+" mcrxr cr0\n"
8568+" addico. %0,%0,-1\n"
8569+" bf 4*cr0+so, 3f\n"
8570+"2:.long " "0x00c00b00""\n"
8571+#else
8572+" addic. %0,%0,-1\n"
8573+#endif
8574+
8575+"3:\n"
8576 PPC405_ERR77(0,%1)
8577 " stwcx. %0,0,%1\n\
8578 bne- 1b"
8579+
8580+#ifdef CONFIG_PAX_REFCOUNT
8581+"\n4:\n"
8582+ _ASM_EXTABLE(2b, 4b)
8583+#endif
8584+
8585 : "=&r"(tmp)
8586 : "r"(&rw->lock)
8587 : "cr0", "xer", "memory");
8588diff --git a/arch/powerpc/include/asm/thread_info.h b/arch/powerpc/include/asm/thread_info.h
8589index 7248979..80b75de 100644
8590--- a/arch/powerpc/include/asm/thread_info.h
8591+++ b/arch/powerpc/include/asm/thread_info.h
8592@@ -103,6 +103,8 @@ static inline struct thread_info *current_thread_info(void)
8593 #if defined(CONFIG_PPC64)
8594 #define TIF_ELF2ABI 18 /* function descriptors must die! */
8595 #endif
8596+/* mask must be expressable within 16 bits to satisfy 'andi' instruction reqs */
8597+#define TIF_GRSEC_SETXID 6 /* update credentials on syscall entry/exit */
8598
8599 /* as above, but as bit values */
8600 #define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE)
8601@@ -121,9 +123,10 @@ static inline struct thread_info *current_thread_info(void)
8602 #define _TIF_SYSCALL_TRACEPOINT (1<<TIF_SYSCALL_TRACEPOINT)
8603 #define _TIF_EMULATE_STACK_STORE (1<<TIF_EMULATE_STACK_STORE)
8604 #define _TIF_NOHZ (1<<TIF_NOHZ)
8605+#define _TIF_GRSEC_SETXID (1<<TIF_GRSEC_SETXID)
8606 #define _TIF_SYSCALL_DOTRACE (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | \
8607 _TIF_SECCOMP | _TIF_SYSCALL_TRACEPOINT | \
8608- _TIF_NOHZ)
8609+ _TIF_NOHZ | _TIF_GRSEC_SETXID)
8610
8611 #define _TIF_USER_WORK_MASK (_TIF_SIGPENDING | _TIF_NEED_RESCHED | \
8612 _TIF_NOTIFY_RESUME | _TIF_UPROBE | \
8613diff --git a/arch/powerpc/include/asm/uaccess.h b/arch/powerpc/include/asm/uaccess.h
8614index a0c071d..49cdc7f 100644
8615--- a/arch/powerpc/include/asm/uaccess.h
8616+++ b/arch/powerpc/include/asm/uaccess.h
8617@@ -58,6 +58,7 @@
8618
8619 #endif
8620
8621+#define access_ok_noprefault(type, addr, size) access_ok((type), (addr), (size))
8622 #define access_ok(type, addr, size) \
8623 (__chk_user_ptr(addr), \
8624 __access_ok((__force unsigned long)(addr), (size), get_fs()))
8625@@ -318,52 +319,6 @@ do { \
8626 extern unsigned long __copy_tofrom_user(void __user *to,
8627 const void __user *from, unsigned long size);
8628
8629-#ifndef __powerpc64__
8630-
8631-static inline unsigned long copy_from_user(void *to,
8632- const void __user *from, unsigned long n)
8633-{
8634- unsigned long over;
8635-
8636- if (access_ok(VERIFY_READ, from, n))
8637- return __copy_tofrom_user((__force void __user *)to, from, n);
8638- if ((unsigned long)from < TASK_SIZE) {
8639- over = (unsigned long)from + n - TASK_SIZE;
8640- return __copy_tofrom_user((__force void __user *)to, from,
8641- n - over) + over;
8642- }
8643- return n;
8644-}
8645-
8646-static inline unsigned long copy_to_user(void __user *to,
8647- const void *from, unsigned long n)
8648-{
8649- unsigned long over;
8650-
8651- if (access_ok(VERIFY_WRITE, to, n))
8652- return __copy_tofrom_user(to, (__force void __user *)from, n);
8653- if ((unsigned long)to < TASK_SIZE) {
8654- over = (unsigned long)to + n - TASK_SIZE;
8655- return __copy_tofrom_user(to, (__force void __user *)from,
8656- n - over) + over;
8657- }
8658- return n;
8659-}
8660-
8661-#else /* __powerpc64__ */
8662-
8663-#define __copy_in_user(to, from, size) \
8664- __copy_tofrom_user((to), (from), (size))
8665-
8666-extern unsigned long copy_from_user(void *to, const void __user *from,
8667- unsigned long n);
8668-extern unsigned long copy_to_user(void __user *to, const void *from,
8669- unsigned long n);
8670-extern unsigned long copy_in_user(void __user *to, const void __user *from,
8671- unsigned long n);
8672-
8673-#endif /* __powerpc64__ */
8674-
8675 static inline unsigned long __copy_from_user_inatomic(void *to,
8676 const void __user *from, unsigned long n)
8677 {
8678@@ -387,6 +342,10 @@ static inline unsigned long __copy_from_user_inatomic(void *to,
8679 if (ret == 0)
8680 return 0;
8681 }
8682+
8683+ if (!__builtin_constant_p(n))
8684+ check_object_size(to, n, false);
8685+
8686 return __copy_tofrom_user((__force void __user *)to, from, n);
8687 }
8688
8689@@ -413,6 +372,10 @@ static inline unsigned long __copy_to_user_inatomic(void __user *to,
8690 if (ret == 0)
8691 return 0;
8692 }
8693+
8694+ if (!__builtin_constant_p(n))
8695+ check_object_size(from, n, true);
8696+
8697 return __copy_tofrom_user(to, (__force const void __user *)from, n);
8698 }
8699
8700@@ -430,6 +393,92 @@ static inline unsigned long __copy_to_user(void __user *to,
8701 return __copy_to_user_inatomic(to, from, size);
8702 }
8703
8704+#ifndef __powerpc64__
8705+
8706+static inline unsigned long __must_check copy_from_user(void *to,
8707+ const void __user *from, unsigned long n)
8708+{
8709+ unsigned long over;
8710+
8711+ if ((long)n < 0)
8712+ return n;
8713+
8714+ if (access_ok(VERIFY_READ, from, n)) {
8715+ if (!__builtin_constant_p(n))
8716+ check_object_size(to, n, false);
8717+ return __copy_tofrom_user((__force void __user *)to, from, n);
8718+ }
8719+ if ((unsigned long)from < TASK_SIZE) {
8720+ over = (unsigned long)from + n - TASK_SIZE;
8721+ if (!__builtin_constant_p(n - over))
8722+ check_object_size(to, n - over, false);
8723+ return __copy_tofrom_user((__force void __user *)to, from,
8724+ n - over) + over;
8725+ }
8726+ return n;
8727+}
8728+
8729+static inline unsigned long __must_check copy_to_user(void __user *to,
8730+ const void *from, unsigned long n)
8731+{
8732+ unsigned long over;
8733+
8734+ if ((long)n < 0)
8735+ return n;
8736+
8737+ if (access_ok(VERIFY_WRITE, to, n)) {
8738+ if (!__builtin_constant_p(n))
8739+ check_object_size(from, n, true);
8740+ return __copy_tofrom_user(to, (__force void __user *)from, n);
8741+ }
8742+ if ((unsigned long)to < TASK_SIZE) {
8743+ over = (unsigned long)to + n - TASK_SIZE;
8744+ if (!__builtin_constant_p(n))
8745+ check_object_size(from, n - over, true);
8746+ return __copy_tofrom_user(to, (__force void __user *)from,
8747+ n - over) + over;
8748+ }
8749+ return n;
8750+}
8751+
8752+#else /* __powerpc64__ */
8753+
8754+#define __copy_in_user(to, from, size) \
8755+ __copy_tofrom_user((to), (from), (size))
8756+
8757+static inline unsigned long __must_check copy_from_user(void *to, const void __user *from, unsigned long n)
8758+{
8759+ if ((long)n < 0 || n > INT_MAX)
8760+ return n;
8761+
8762+ if (!__builtin_constant_p(n))
8763+ check_object_size(to, n, false);
8764+
8765+ if (likely(access_ok(VERIFY_READ, from, n)))
8766+ n = __copy_from_user(to, from, n);
8767+ else
8768+ memset(to, 0, n);
8769+ return n;
8770+}
8771+
8772+static inline unsigned long __must_check copy_to_user(void __user *to, const void *from, unsigned long n)
8773+{
8774+ if ((long)n < 0 || n > INT_MAX)
8775+ return n;
8776+
8777+ if (likely(access_ok(VERIFY_WRITE, to, n))) {
8778+ if (!__builtin_constant_p(n))
8779+ check_object_size(from, n, true);
8780+ n = __copy_to_user(to, from, n);
8781+ }
8782+ return n;
8783+}
8784+
8785+extern unsigned long copy_in_user(void __user *to, const void __user *from,
8786+ unsigned long n);
8787+
8788+#endif /* __powerpc64__ */
8789+
8790 extern unsigned long __clear_user(void __user *addr, unsigned long size);
8791
8792 static inline unsigned long clear_user(void __user *addr, unsigned long size)
8793diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile
8794index 502cf69..53936a1 100644
8795--- a/arch/powerpc/kernel/Makefile
8796+++ b/arch/powerpc/kernel/Makefile
8797@@ -15,6 +15,11 @@ CFLAGS_prom_init.o += -fPIC
8798 CFLAGS_btext.o += -fPIC
8799 endif
8800
8801+CFLAGS_REMOVE_cputable.o = $(LATENT_ENTROPY_PLUGIN_CFLAGS)
8802+CFLAGS_REMOVE_prom_init.o = $(LATENT_ENTROPY_PLUGIN_CFLAGS)
8803+CFLAGS_REMOVE_btext.o = $(LATENT_ENTROPY_PLUGIN_CFLAGS)
8804+CFLAGS_REMOVE_prom.o = $(LATENT_ENTROPY_PLUGIN_CFLAGS)
8805+
8806 ifdef CONFIG_FUNCTION_TRACER
8807 # Do not trace early boot code
8808 CFLAGS_REMOVE_cputable.o = -pg -mno-sched-epilog
8809@@ -27,6 +32,8 @@ CFLAGS_REMOVE_ftrace.o = -pg -mno-sched-epilog
8810 CFLAGS_REMOVE_time.o = -pg -mno-sched-epilog
8811 endif
8812
8813+CFLAGS_REMOVE_prom_init.o += $(LATENT_ENTROPY_PLUGIN_CFLAGS)
8814+
8815 obj-y := cputable.o ptrace.o syscalls.o \
8816 irq.o align.o signal_32.o pmc.o vdso.o \
8817 process.o systbl.o idle.o \
8818diff --git a/arch/powerpc/kernel/exceptions-64e.S b/arch/powerpc/kernel/exceptions-64e.S
8819index 3e68d1c..72a5ee6 100644
8820--- a/arch/powerpc/kernel/exceptions-64e.S
8821+++ b/arch/powerpc/kernel/exceptions-64e.S
8822@@ -1010,6 +1010,7 @@ storage_fault_common:
8823 std r14,_DAR(r1)
8824 std r15,_DSISR(r1)
8825 addi r3,r1,STACK_FRAME_OVERHEAD
8826+ bl save_nvgprs
8827 mr r4,r14
8828 mr r5,r15
8829 ld r14,PACA_EXGEN+EX_R14(r13)
8830@@ -1018,8 +1019,7 @@ storage_fault_common:
8831 cmpdi r3,0
8832 bne- 1f
8833 b ret_from_except_lite
8834-1: bl save_nvgprs
8835- mr r5,r3
8836+1: mr r5,r3
8837 addi r3,r1,STACK_FRAME_OVERHEAD
8838 ld r4,_DAR(r1)
8839 bl bad_page_fault
8840diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S
8841index 9519e6b..13f6c38 100644
8842--- a/arch/powerpc/kernel/exceptions-64s.S
8843+++ b/arch/powerpc/kernel/exceptions-64s.S
8844@@ -1599,10 +1599,10 @@ handle_page_fault:
8845 11: ld r4,_DAR(r1)
8846 ld r5,_DSISR(r1)
8847 addi r3,r1,STACK_FRAME_OVERHEAD
8848+ bl save_nvgprs
8849 bl do_page_fault
8850 cmpdi r3,0
8851 beq+ 12f
8852- bl save_nvgprs
8853 mr r5,r3
8854 addi r3,r1,STACK_FRAME_OVERHEAD
8855 lwz r4,_DAR(r1)
8856diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
8857index 4509603..cdb491f 100644
8858--- a/arch/powerpc/kernel/irq.c
8859+++ b/arch/powerpc/kernel/irq.c
8860@@ -460,6 +460,8 @@ void migrate_irqs(void)
8861 }
8862 #endif
8863
8864+extern void gr_handle_kernel_exploit(void);
8865+
8866 static inline void check_stack_overflow(void)
8867 {
8868 #ifdef CONFIG_DEBUG_STACKOVERFLOW
8869@@ -472,6 +474,7 @@ static inline void check_stack_overflow(void)
8870 pr_err("do_IRQ: stack overflow: %ld\n",
8871 sp - sizeof(struct thread_info));
8872 dump_stack();
8873+ gr_handle_kernel_exploit();
8874 }
8875 #endif
8876 }
8877diff --git a/arch/powerpc/kernel/module_32.c b/arch/powerpc/kernel/module_32.c
8878index c94d2e0..992a9ce 100644
8879--- a/arch/powerpc/kernel/module_32.c
8880+++ b/arch/powerpc/kernel/module_32.c
8881@@ -158,7 +158,7 @@ int module_frob_arch_sections(Elf32_Ehdr *hdr,
8882 me->arch.core_plt_section = i;
8883 }
8884 if (!me->arch.core_plt_section || !me->arch.init_plt_section) {
8885- pr_err("Module doesn't contain .plt or .init.plt sections.\n");
8886+ pr_err("Module $s doesn't contain .plt or .init.plt sections.\n", me->name);
8887 return -ENOEXEC;
8888 }
8889
8890@@ -188,11 +188,16 @@ static uint32_t do_plt_call(void *location,
8891
8892 pr_debug("Doing plt for call to 0x%x at 0x%x\n", val, (unsigned int)location);
8893 /* Init, or core PLT? */
8894- if (location >= mod->module_core
8895- && location < mod->module_core + mod->core_size)
8896+ if ((location >= mod->module_core_rx && location < mod->module_core_rx + mod->core_size_rx) ||
8897+ (location >= mod->module_core_rw && location < mod->module_core_rw + mod->core_size_rw))
8898 entry = (void *)sechdrs[mod->arch.core_plt_section].sh_addr;
8899- else
8900+ else if ((location >= mod->module_init_rx && location < mod->module_init_rx + mod->init_size_rx) ||
8901+ (location >= mod->module_init_rw && location < mod->module_init_rw + mod->init_size_rw))
8902 entry = (void *)sechdrs[mod->arch.init_plt_section].sh_addr;
8903+ else {
8904+ printk(KERN_ERR "%s: invalid R_PPC_REL24 entry found\n", mod->name);
8905+ return ~0UL;
8906+ }
8907
8908 /* Find this entry, or if that fails, the next avail. entry */
8909 while (entry->jump[0]) {
8910@@ -296,7 +301,7 @@ int apply_relocate_add(Elf32_Shdr *sechdrs,
8911 }
8912 #ifdef CONFIG_DYNAMIC_FTRACE
8913 module->arch.tramp =
8914- do_plt_call(module->module_core,
8915+ do_plt_call(module->module_core_rx,
8916 (unsigned long)ftrace_caller,
8917 sechdrs, module);
8918 #endif
8919diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
8920index b4cc7be..1fe8bb3 100644
8921--- a/arch/powerpc/kernel/process.c
8922+++ b/arch/powerpc/kernel/process.c
8923@@ -1036,8 +1036,8 @@ void show_regs(struct pt_regs * regs)
8924 * Lookup NIP late so we have the best change of getting the
8925 * above info out without failing
8926 */
8927- printk("NIP ["REG"] %pS\n", regs->nip, (void *)regs->nip);
8928- printk("LR ["REG"] %pS\n", regs->link, (void *)regs->link);
8929+ printk("NIP ["REG"] %pA\n", regs->nip, (void *)regs->nip);
8930+ printk("LR ["REG"] %pA\n", regs->link, (void *)regs->link);
8931 #endif
8932 show_stack(current, (unsigned long *) regs->gpr[1]);
8933 if (!user_mode(regs))
8934@@ -1549,10 +1549,10 @@ void show_stack(struct task_struct *tsk, unsigned long *stack)
8935 newsp = stack[0];
8936 ip = stack[STACK_FRAME_LR_SAVE];
8937 if (!firstframe || ip != lr) {
8938- printk("["REG"] ["REG"] %pS", sp, ip, (void *)ip);
8939+ printk("["REG"] ["REG"] %pA", sp, ip, (void *)ip);
8940 #ifdef CONFIG_FUNCTION_GRAPH_TRACER
8941 if ((ip == rth) && curr_frame >= 0) {
8942- printk(" (%pS)",
8943+ printk(" (%pA)",
8944 (void *)current->ret_stack[curr_frame].ret);
8945 curr_frame--;
8946 }
8947@@ -1572,7 +1572,7 @@ void show_stack(struct task_struct *tsk, unsigned long *stack)
8948 struct pt_regs *regs = (struct pt_regs *)
8949 (sp + STACK_FRAME_OVERHEAD);
8950 lr = regs->link;
8951- printk("--- interrupt: %lx at %pS\n LR = %pS\n",
8952+ printk("--- interrupt: %lx at %pA\n LR = %pA\n",
8953 regs->trap, (void *)regs->nip, (void *)lr);
8954 firstframe = 1;
8955 }
8956@@ -1608,49 +1608,3 @@ void notrace __ppc64_runlatch_off(void)
8957 mtspr(SPRN_CTRLT, ctrl);
8958 }
8959 #endif /* CONFIG_PPC64 */
8960-
8961-unsigned long arch_align_stack(unsigned long sp)
8962-{
8963- if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space)
8964- sp -= get_random_int() & ~PAGE_MASK;
8965- return sp & ~0xf;
8966-}
8967-
8968-static inline unsigned long brk_rnd(void)
8969-{
8970- unsigned long rnd = 0;
8971-
8972- /* 8MB for 32bit, 1GB for 64bit */
8973- if (is_32bit_task())
8974- rnd = (long)(get_random_int() % (1<<(23-PAGE_SHIFT)));
8975- else
8976- rnd = (long)(get_random_int() % (1<<(30-PAGE_SHIFT)));
8977-
8978- return rnd << PAGE_SHIFT;
8979-}
8980-
8981-unsigned long arch_randomize_brk(struct mm_struct *mm)
8982-{
8983- unsigned long base = mm->brk;
8984- unsigned long ret;
8985-
8986-#ifdef CONFIG_PPC_STD_MMU_64
8987- /*
8988- * If we are using 1TB segments and we are allowed to randomise
8989- * the heap, we can put it above 1TB so it is backed by a 1TB
8990- * segment. Otherwise the heap will be in the bottom 1TB
8991- * which always uses 256MB segments and this may result in a
8992- * performance penalty.
8993- */
8994- if (!is_32bit_task() && (mmu_highuser_ssize == MMU_SEGSIZE_1T))
8995- base = max_t(unsigned long, mm->brk, 1UL << SID_SHIFT_1T);
8996-#endif
8997-
8998- ret = PAGE_ALIGN(base + brk_rnd());
8999-
9000- if (ret < mm->brk)
9001- return mm->brk;
9002-
9003- return ret;
9004-}
9005-
9006diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c
9007index f21897b..28c0428 100644
9008--- a/arch/powerpc/kernel/ptrace.c
9009+++ b/arch/powerpc/kernel/ptrace.c
9010@@ -1762,6 +1762,10 @@ long arch_ptrace(struct task_struct *child, long request,
9011 return ret;
9012 }
9013
9014+#ifdef CONFIG_GRKERNSEC_SETXID
9015+extern void gr_delayed_cred_worker(void);
9016+#endif
9017+
9018 /*
9019 * We must return the syscall number to actually look up in the table.
9020 * This can be -1L to skip running any syscall at all.
9021@@ -1774,6 +1778,11 @@ long do_syscall_trace_enter(struct pt_regs *regs)
9022
9023 secure_computing_strict(regs->gpr[0]);
9024
9025+#ifdef CONFIG_GRKERNSEC_SETXID
9026+ if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID)))
9027+ gr_delayed_cred_worker();
9028+#endif
9029+
9030 if (test_thread_flag(TIF_SYSCALL_TRACE) &&
9031 tracehook_report_syscall_entry(regs))
9032 /*
9033@@ -1805,6 +1814,11 @@ void do_syscall_trace_leave(struct pt_regs *regs)
9034 {
9035 int step;
9036
9037+#ifdef CONFIG_GRKERNSEC_SETXID
9038+ if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID)))
9039+ gr_delayed_cred_worker();
9040+#endif
9041+
9042 audit_syscall_exit(regs);
9043
9044 if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
9045diff --git a/arch/powerpc/kernel/signal_32.c b/arch/powerpc/kernel/signal_32.c
9046index d3a831a..3a33123 100644
9047--- a/arch/powerpc/kernel/signal_32.c
9048+++ b/arch/powerpc/kernel/signal_32.c
9049@@ -1011,7 +1011,7 @@ int handle_rt_signal32(struct ksignal *ksig, sigset_t *oldset,
9050 /* Save user registers on the stack */
9051 frame = &rt_sf->uc.uc_mcontext;
9052 addr = frame;
9053- if (vdso32_rt_sigtramp && current->mm->context.vdso_base) {
9054+ if (vdso32_rt_sigtramp && current->mm->context.vdso_base != ~0UL) {
9055 sigret = 0;
9056 tramp = current->mm->context.vdso_base + vdso32_rt_sigtramp;
9057 } else {
9058diff --git a/arch/powerpc/kernel/signal_64.c b/arch/powerpc/kernel/signal_64.c
9059index c7c24d2..1bf7039 100644
9060--- a/arch/powerpc/kernel/signal_64.c
9061+++ b/arch/powerpc/kernel/signal_64.c
9062@@ -754,7 +754,7 @@ int handle_rt_signal64(struct ksignal *ksig, sigset_t *set, struct pt_regs *regs
9063 current->thread.fp_state.fpscr = 0;
9064
9065 /* Set up to return from userspace. */
9066- if (vdso64_rt_sigtramp && current->mm->context.vdso_base) {
9067+ if (vdso64_rt_sigtramp && current->mm->context.vdso_base != ~0UL) {
9068 regs->link = current->mm->context.vdso_base + vdso64_rt_sigtramp;
9069 } else {
9070 err |= setup_trampoline(__NR_rt_sigreturn, &frame->tramp[0]);
9071diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
9072index 19e4744..28a8d7b 100644
9073--- a/arch/powerpc/kernel/traps.c
9074+++ b/arch/powerpc/kernel/traps.c
9075@@ -36,6 +36,7 @@
9076 #include <linux/debugfs.h>
9077 #include <linux/ratelimit.h>
9078 #include <linux/context_tracking.h>
9079+#include <linux/uaccess.h>
9080
9081 #include <asm/emulated_ops.h>
9082 #include <asm/pgtable.h>
9083@@ -142,6 +143,8 @@ static unsigned __kprobes long oops_begin(struct pt_regs *regs)
9084 return flags;
9085 }
9086
9087+extern void gr_handle_kernel_exploit(void);
9088+
9089 static void __kprobes oops_end(unsigned long flags, struct pt_regs *regs,
9090 int signr)
9091 {
9092@@ -191,6 +194,9 @@ static void __kprobes oops_end(unsigned long flags, struct pt_regs *regs,
9093 panic("Fatal exception in interrupt");
9094 if (panic_on_oops)
9095 panic("Fatal exception");
9096+
9097+ gr_handle_kernel_exploit();
9098+
9099 do_exit(signr);
9100 }
9101
9102@@ -1137,6 +1143,26 @@ void __kprobes program_check_exception(struct pt_regs *regs)
9103 enum ctx_state prev_state = exception_enter();
9104 unsigned int reason = get_reason(regs);
9105
9106+#ifdef CONFIG_PAX_REFCOUNT
9107+ unsigned int bkpt;
9108+ const struct exception_table_entry *entry;
9109+
9110+ if (reason & REASON_ILLEGAL) {
9111+ /* Check if PaX bad instruction */
9112+ if (!probe_kernel_address(regs->nip, bkpt) && bkpt == 0xc00b00) {
9113+ current->thread.trap_nr = 0;
9114+ pax_report_refcount_overflow(regs);
9115+ /* fixup_exception() for PowerPC does not exist, simulate its job */
9116+ if ((entry = search_exception_tables(regs->nip)) != NULL) {
9117+ regs->nip = entry->fixup;
9118+ return;
9119+ }
9120+ /* fixup_exception() could not handle */
9121+ goto bail;
9122+ }
9123+ }
9124+#endif
9125+
9126 /* We can now get here via a FP Unavailable exception if the core
9127 * has no FPU, in that case the reason flags will be 0 */
9128
9129diff --git a/arch/powerpc/kernel/vdso.c b/arch/powerpc/kernel/vdso.c
9130index 305eb0d..accc5b40 100644
9131--- a/arch/powerpc/kernel/vdso.c
9132+++ b/arch/powerpc/kernel/vdso.c
9133@@ -34,6 +34,7 @@
9134 #include <asm/vdso.h>
9135 #include <asm/vdso_datapage.h>
9136 #include <asm/setup.h>
9137+#include <asm/mman.h>
9138
9139 #undef DEBUG
9140
9141@@ -220,7 +221,7 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
9142 vdso_base = VDSO32_MBASE;
9143 #endif
9144
9145- current->mm->context.vdso_base = 0;
9146+ current->mm->context.vdso_base = ~0UL;
9147
9148 /* vDSO has a problem and was disabled, just don't "enable" it for the
9149 * process
9150@@ -240,7 +241,7 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
9151 vdso_base = get_unmapped_area(NULL, vdso_base,
9152 (vdso_pages << PAGE_SHIFT) +
9153 ((VDSO_ALIGNMENT - 1) & PAGE_MASK),
9154- 0, 0);
9155+ 0, MAP_PRIVATE | MAP_EXECUTABLE);
9156 if (IS_ERR_VALUE(vdso_base)) {
9157 rc = vdso_base;
9158 goto fail_mmapsem;
9159diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c
9160index 27c0fac..6ec4a32 100644
9161--- a/arch/powerpc/kvm/powerpc.c
9162+++ b/arch/powerpc/kvm/powerpc.c
9163@@ -1402,7 +1402,7 @@ void kvmppc_init_lpid(unsigned long nr_lpids_param)
9164 }
9165 EXPORT_SYMBOL_GPL(kvmppc_init_lpid);
9166
9167-int kvm_arch_init(void *opaque)
9168+int kvm_arch_init(const void *opaque)
9169 {
9170 return 0;
9171 }
9172diff --git a/arch/powerpc/lib/usercopy_64.c b/arch/powerpc/lib/usercopy_64.c
9173index 5eea6f3..5d10396 100644
9174--- a/arch/powerpc/lib/usercopy_64.c
9175+++ b/arch/powerpc/lib/usercopy_64.c
9176@@ -9,22 +9,6 @@
9177 #include <linux/module.h>
9178 #include <asm/uaccess.h>
9179
9180-unsigned long copy_from_user(void *to, const void __user *from, unsigned long n)
9181-{
9182- if (likely(access_ok(VERIFY_READ, from, n)))
9183- n = __copy_from_user(to, from, n);
9184- else
9185- memset(to, 0, n);
9186- return n;
9187-}
9188-
9189-unsigned long copy_to_user(void __user *to, const void *from, unsigned long n)
9190-{
9191- if (likely(access_ok(VERIFY_WRITE, to, n)))
9192- n = __copy_to_user(to, from, n);
9193- return n;
9194-}
9195-
9196 unsigned long copy_in_user(void __user *to, const void __user *from,
9197 unsigned long n)
9198 {
9199@@ -35,7 +19,5 @@ unsigned long copy_in_user(void __user *to, const void __user *from,
9200 return n;
9201 }
9202
9203-EXPORT_SYMBOL(copy_from_user);
9204-EXPORT_SYMBOL(copy_to_user);
9205 EXPORT_SYMBOL(copy_in_user);
9206
9207diff --git a/arch/powerpc/mm/fault.c b/arch/powerpc/mm/fault.c
9208index b396868..3eb6b9f 100644
9209--- a/arch/powerpc/mm/fault.c
9210+++ b/arch/powerpc/mm/fault.c
9211@@ -33,6 +33,10 @@
9212 #include <linux/ratelimit.h>
9213 #include <linux/context_tracking.h>
9214 #include <linux/hugetlb.h>
9215+#include <linux/slab.h>
9216+#include <linux/pagemap.h>
9217+#include <linux/compiler.h>
9218+#include <linux/unistd.h>
9219
9220 #include <asm/firmware.h>
9221 #include <asm/page.h>
9222@@ -68,6 +72,33 @@ static inline int notify_page_fault(struct pt_regs *regs)
9223 }
9224 #endif
9225
9226+#ifdef CONFIG_PAX_PAGEEXEC
9227+/*
9228+ * PaX: decide what to do with offenders (regs->nip = fault address)
9229+ *
9230+ * returns 1 when task should be killed
9231+ */
9232+static int pax_handle_fetch_fault(struct pt_regs *regs)
9233+{
9234+ return 1;
9235+}
9236+
9237+void pax_report_insns(struct pt_regs *regs, void *pc, void *sp)
9238+{
9239+ unsigned long i;
9240+
9241+ printk(KERN_ERR "PAX: bytes at PC: ");
9242+ for (i = 0; i < 5; i++) {
9243+ unsigned int c;
9244+ if (get_user(c, (unsigned int __user *)pc+i))
9245+ printk(KERN_CONT "???????? ");
9246+ else
9247+ printk(KERN_CONT "%08x ", c);
9248+ }
9249+ printk("\n");
9250+}
9251+#endif
9252+
9253 /*
9254 * Check whether the instruction at regs->nip is a store using
9255 * an update addressing form which will update r1.
9256@@ -227,7 +258,7 @@ int __kprobes do_page_fault(struct pt_regs *regs, unsigned long address,
9257 * indicate errors in DSISR but can validly be set in SRR1.
9258 */
9259 if (trap == 0x400)
9260- error_code &= 0x48200000;
9261+ error_code &= 0x58200000;
9262 else
9263 is_write = error_code & DSISR_ISSTORE;
9264 #else
9265@@ -383,12 +414,16 @@ good_area:
9266 * "undefined". Of those that can be set, this is the only
9267 * one which seems bad.
9268 */
9269- if (error_code & 0x10000000)
9270+ if (error_code & DSISR_GUARDED)
9271 /* Guarded storage error. */
9272 goto bad_area;
9273 #endif /* CONFIG_8xx */
9274
9275 if (is_exec) {
9276+#ifdef CONFIG_PPC_STD_MMU
9277+ if (error_code & DSISR_GUARDED)
9278+ goto bad_area;
9279+#endif
9280 /*
9281 * Allow execution from readable areas if the MMU does not
9282 * provide separate controls over reading and executing.
9283@@ -483,6 +518,23 @@ bad_area:
9284 bad_area_nosemaphore:
9285 /* User mode accesses cause a SIGSEGV */
9286 if (user_mode(regs)) {
9287+
9288+#ifdef CONFIG_PAX_PAGEEXEC
9289+ if (mm->pax_flags & MF_PAX_PAGEEXEC) {
9290+#ifdef CONFIG_PPC_STD_MMU
9291+ if (is_exec && (error_code & (DSISR_PROTFAULT | DSISR_GUARDED))) {
9292+#else
9293+ if (is_exec && regs->nip == address) {
9294+#endif
9295+ switch (pax_handle_fetch_fault(regs)) {
9296+ }
9297+
9298+ pax_report_fault(regs, (void *)regs->nip, (void *)regs->gpr[PT_R1]);
9299+ do_group_exit(SIGKILL);
9300+ }
9301+ }
9302+#endif
9303+
9304 _exception(SIGSEGV, regs, code, address);
9305 goto bail;
9306 }
9307diff --git a/arch/powerpc/mm/mmap.c b/arch/powerpc/mm/mmap.c
9308index cb8bdbe..cde4bc7 100644
9309--- a/arch/powerpc/mm/mmap.c
9310+++ b/arch/powerpc/mm/mmap.c
9311@@ -53,10 +53,14 @@ static inline int mmap_is_legacy(void)
9312 return sysctl_legacy_va_layout;
9313 }
9314
9315-static unsigned long mmap_rnd(void)
9316+static unsigned long mmap_rnd(struct mm_struct *mm)
9317 {
9318 unsigned long rnd = 0;
9319
9320+#ifdef CONFIG_PAX_RANDMMAP
9321+ if (!(mm->pax_flags & MF_PAX_RANDMMAP))
9322+#endif
9323+
9324 if (current->flags & PF_RANDOMIZE) {
9325 /* 8MB for 32bit, 1GB for 64bit */
9326 if (is_32bit_task())
9327@@ -67,7 +71,7 @@ static unsigned long mmap_rnd(void)
9328 return rnd << PAGE_SHIFT;
9329 }
9330
9331-static inline unsigned long mmap_base(void)
9332+static inline unsigned long mmap_base(struct mm_struct *mm)
9333 {
9334 unsigned long gap = rlimit(RLIMIT_STACK);
9335
9336@@ -76,7 +80,7 @@ static inline unsigned long mmap_base(void)
9337 else if (gap > MAX_GAP)
9338 gap = MAX_GAP;
9339
9340- return PAGE_ALIGN(TASK_SIZE - gap - mmap_rnd());
9341+ return PAGE_ALIGN(TASK_SIZE - gap - mmap_rnd(mm));
9342 }
9343
9344 /*
9345@@ -91,9 +95,21 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
9346 */
9347 if (mmap_is_legacy()) {
9348 mm->mmap_base = TASK_UNMAPPED_BASE;
9349+
9350+#ifdef CONFIG_PAX_RANDMMAP
9351+ if (mm->pax_flags & MF_PAX_RANDMMAP)
9352+ mm->mmap_base += mm->delta_mmap;
9353+#endif
9354+
9355 mm->get_unmapped_area = arch_get_unmapped_area;
9356 } else {
9357- mm->mmap_base = mmap_base();
9358+ mm->mmap_base = mmap_base(mm);
9359+
9360+#ifdef CONFIG_PAX_RANDMMAP
9361+ if (mm->pax_flags & MF_PAX_RANDMMAP)
9362+ mm->mmap_base -= mm->delta_mmap + mm->delta_stack;
9363+#endif
9364+
9365 mm->get_unmapped_area = arch_get_unmapped_area_topdown;
9366 }
9367 }
9368diff --git a/arch/powerpc/mm/slice.c b/arch/powerpc/mm/slice.c
9369index 0f432a7..abfe841 100644
9370--- a/arch/powerpc/mm/slice.c
9371+++ b/arch/powerpc/mm/slice.c
9372@@ -105,7 +105,7 @@ static int slice_area_is_free(struct mm_struct *mm, unsigned long addr,
9373 if ((mm->task_size - len) < addr)
9374 return 0;
9375 vma = find_vma(mm, addr);
9376- return (!vma || (addr + len) <= vma->vm_start);
9377+ return check_heap_stack_gap(vma, addr, len, 0);
9378 }
9379
9380 static int slice_low_has_vma(struct mm_struct *mm, unsigned long slice)
9381@@ -277,6 +277,12 @@ static unsigned long slice_find_area_bottomup(struct mm_struct *mm,
9382 info.align_offset = 0;
9383
9384 addr = TASK_UNMAPPED_BASE;
9385+
9386+#ifdef CONFIG_PAX_RANDMMAP
9387+ if (mm->pax_flags & MF_PAX_RANDMMAP)
9388+ addr += mm->delta_mmap;
9389+#endif
9390+
9391 while (addr < TASK_SIZE) {
9392 info.low_limit = addr;
9393 if (!slice_scan_available(addr, available, 1, &addr))
9394@@ -410,6 +416,11 @@ unsigned long slice_get_unmapped_area(unsigned long addr, unsigned long len,
9395 if (fixed && addr > (mm->task_size - len))
9396 return -ENOMEM;
9397
9398+#ifdef CONFIG_PAX_RANDMMAP
9399+ if (!fixed && (mm->pax_flags & MF_PAX_RANDMMAP))
9400+ addr = 0;
9401+#endif
9402+
9403 /* If hint, make sure it matches our alignment restrictions */
9404 if (!fixed && addr) {
9405 addr = _ALIGN_UP(addr, 1ul << pshift);
9406diff --git a/arch/powerpc/platforms/cell/spufs/file.c b/arch/powerpc/platforms/cell/spufs/file.c
9407index d966bbe..372124a 100644
9408--- a/arch/powerpc/platforms/cell/spufs/file.c
9409+++ b/arch/powerpc/platforms/cell/spufs/file.c
9410@@ -280,9 +280,9 @@ spufs_mem_mmap_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
9411 return VM_FAULT_NOPAGE;
9412 }
9413
9414-static int spufs_mem_mmap_access(struct vm_area_struct *vma,
9415+static ssize_t spufs_mem_mmap_access(struct vm_area_struct *vma,
9416 unsigned long address,
9417- void *buf, int len, int write)
9418+ void *buf, size_t len, int write)
9419 {
9420 struct spu_context *ctx = vma->vm_file->private_data;
9421 unsigned long offset = address - vma->vm_start;
9422diff --git a/arch/s390/include/asm/atomic.h b/arch/s390/include/asm/atomic.h
9423index fa934fe..c296056 100644
9424--- a/arch/s390/include/asm/atomic.h
9425+++ b/arch/s390/include/asm/atomic.h
9426@@ -412,4 +412,14 @@ static inline long long atomic64_dec_if_positive(atomic64_t *v)
9427 #define atomic64_dec_and_test(_v) (atomic64_sub_return(1, _v) == 0)
9428 #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
9429
9430+#define atomic64_read_unchecked(v) atomic64_read(v)
9431+#define atomic64_set_unchecked(v, i) atomic64_set((v), (i))
9432+#define atomic64_add_unchecked(a, v) atomic64_add((a), (v))
9433+#define atomic64_add_return_unchecked(a, v) atomic64_add_return((a), (v))
9434+#define atomic64_sub_unchecked(a, v) atomic64_sub((a), (v))
9435+#define atomic64_inc_unchecked(v) atomic64_inc(v)
9436+#define atomic64_inc_return_unchecked(v) atomic64_inc_return(v)
9437+#define atomic64_dec_unchecked(v) atomic64_dec(v)
9438+#define atomic64_cmpxchg_unchecked(v, o, n) atomic64_cmpxchg((v), (o), (n))
9439+
9440 #endif /* __ARCH_S390_ATOMIC__ */
9441diff --git a/arch/s390/include/asm/barrier.h b/arch/s390/include/asm/barrier.h
9442index 8d72471..5322500 100644
9443--- a/arch/s390/include/asm/barrier.h
9444+++ b/arch/s390/include/asm/barrier.h
9445@@ -42,7 +42,7 @@
9446 do { \
9447 compiletime_assert_atomic_type(*p); \
9448 barrier(); \
9449- ACCESS_ONCE(*p) = (v); \
9450+ ACCESS_ONCE_RW(*p) = (v); \
9451 } while (0)
9452
9453 #define smp_load_acquire(p) \
9454diff --git a/arch/s390/include/asm/cache.h b/arch/s390/include/asm/cache.h
9455index 4d7ccac..d03d0ad 100644
9456--- a/arch/s390/include/asm/cache.h
9457+++ b/arch/s390/include/asm/cache.h
9458@@ -9,8 +9,10 @@
9459 #ifndef __ARCH_S390_CACHE_H
9460 #define __ARCH_S390_CACHE_H
9461
9462-#define L1_CACHE_BYTES 256
9463+#include <linux/const.h>
9464+
9465 #define L1_CACHE_SHIFT 8
9466+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
9467 #define NET_SKB_PAD 32
9468
9469 #define __read_mostly __attribute__((__section__(".data..read_mostly")))
9470diff --git a/arch/s390/include/asm/elf.h b/arch/s390/include/asm/elf.h
9471index c9c875d..b4b0e4c 100644
9472--- a/arch/s390/include/asm/elf.h
9473+++ b/arch/s390/include/asm/elf.h
9474@@ -163,8 +163,14 @@ extern unsigned int vdso_enabled;
9475 the loader. We need to make sure that it is out of the way of the program
9476 that it will "exec", and that there is sufficient room for the brk. */
9477
9478-extern unsigned long randomize_et_dyn(void);
9479-#define ELF_ET_DYN_BASE randomize_et_dyn()
9480+#define ELF_ET_DYN_BASE (STACK_TOP / 3 * 2)
9481+
9482+#ifdef CONFIG_PAX_ASLR
9483+#define PAX_ELF_ET_DYN_BASE (test_thread_flag(TIF_31BIT) ? 0x10000UL : 0x80000000UL)
9484+
9485+#define PAX_DELTA_MMAP_LEN (test_thread_flag(TIF_31BIT) ? 15 : 26)
9486+#define PAX_DELTA_STACK_LEN (test_thread_flag(TIF_31BIT) ? 15 : 26)
9487+#endif
9488
9489 /* This yields a mask that user programs can use to figure out what
9490 instruction set this CPU supports. */
9491@@ -225,9 +231,6 @@ struct linux_binprm;
9492 #define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1
9493 int arch_setup_additional_pages(struct linux_binprm *, int);
9494
9495-extern unsigned long arch_randomize_brk(struct mm_struct *mm);
9496-#define arch_randomize_brk arch_randomize_brk
9497-
9498 void *fill_cpu_elf_notes(void *ptr, struct save_area *sa, __vector128 *vxrs);
9499
9500 #endif
9501diff --git a/arch/s390/include/asm/exec.h b/arch/s390/include/asm/exec.h
9502index c4a93d6..4d2a9b4 100644
9503--- a/arch/s390/include/asm/exec.h
9504+++ b/arch/s390/include/asm/exec.h
9505@@ -7,6 +7,6 @@
9506 #ifndef __ASM_EXEC_H
9507 #define __ASM_EXEC_H
9508
9509-extern unsigned long arch_align_stack(unsigned long sp);
9510+#define arch_align_stack(x) ((x) & ~0xfUL)
9511
9512 #endif /* __ASM_EXEC_H */
9513diff --git a/arch/s390/include/asm/uaccess.h b/arch/s390/include/asm/uaccess.h
9514index cd4c68e..6764641 100644
9515--- a/arch/s390/include/asm/uaccess.h
9516+++ b/arch/s390/include/asm/uaccess.h
9517@@ -59,6 +59,7 @@ static inline int __range_ok(unsigned long addr, unsigned long size)
9518 __range_ok((unsigned long)(addr), (size)); \
9519 })
9520
9521+#define access_ok_noprefault(type, addr, size) access_ok((type), (addr), (size))
9522 #define access_ok(type, addr, size) __access_ok(addr, size)
9523
9524 /*
9525@@ -275,6 +276,10 @@ static inline unsigned long __must_check
9526 copy_to_user(void __user *to, const void *from, unsigned long n)
9527 {
9528 might_fault();
9529+
9530+ if ((long)n < 0)
9531+ return n;
9532+
9533 return __copy_to_user(to, from, n);
9534 }
9535
9536@@ -303,10 +308,14 @@ __compiletime_warning("copy_from_user() buffer size is not provably correct")
9537 static inline unsigned long __must_check
9538 copy_from_user(void *to, const void __user *from, unsigned long n)
9539 {
9540- unsigned int sz = __compiletime_object_size(to);
9541+ size_t sz = __compiletime_object_size(to);
9542
9543 might_fault();
9544- if (unlikely(sz != -1 && sz < n)) {
9545+
9546+ if ((long)n < 0)
9547+ return n;
9548+
9549+ if (unlikely(sz != (size_t)-1 && sz < n)) {
9550 copy_from_user_overflow();
9551 return n;
9552 }
9553diff --git a/arch/s390/kernel/module.c b/arch/s390/kernel/module.c
9554index 2ca9586..55682a9 100644
9555--- a/arch/s390/kernel/module.c
9556+++ b/arch/s390/kernel/module.c
9557@@ -165,11 +165,11 @@ int module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs,
9558
9559 /* Increase core size by size of got & plt and set start
9560 offsets for got and plt. */
9561- me->core_size = ALIGN(me->core_size, 4);
9562- me->arch.got_offset = me->core_size;
9563- me->core_size += me->arch.got_size;
9564- me->arch.plt_offset = me->core_size;
9565- me->core_size += me->arch.plt_size;
9566+ me->core_size_rw = ALIGN(me->core_size_rw, 4);
9567+ me->arch.got_offset = me->core_size_rw;
9568+ me->core_size_rw += me->arch.got_size;
9569+ me->arch.plt_offset = me->core_size_rx;
9570+ me->core_size_rx += me->arch.plt_size;
9571 return 0;
9572 }
9573
9574@@ -285,7 +285,7 @@ static int apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab,
9575 if (info->got_initialized == 0) {
9576 Elf_Addr *gotent;
9577
9578- gotent = me->module_core + me->arch.got_offset +
9579+ gotent = me->module_core_rw + me->arch.got_offset +
9580 info->got_offset;
9581 *gotent = val;
9582 info->got_initialized = 1;
9583@@ -308,7 +308,7 @@ static int apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab,
9584 rc = apply_rela_bits(loc, val, 0, 64, 0);
9585 else if (r_type == R_390_GOTENT ||
9586 r_type == R_390_GOTPLTENT) {
9587- val += (Elf_Addr) me->module_core - loc;
9588+ val += (Elf_Addr) me->module_core_rw - loc;
9589 rc = apply_rela_bits(loc, val, 1, 32, 1);
9590 }
9591 break;
9592@@ -321,7 +321,7 @@ static int apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab,
9593 case R_390_PLTOFF64: /* 16 bit offset from GOT to PLT. */
9594 if (info->plt_initialized == 0) {
9595 unsigned int *ip;
9596- ip = me->module_core + me->arch.plt_offset +
9597+ ip = me->module_core_rx + me->arch.plt_offset +
9598 info->plt_offset;
9599 #ifndef CONFIG_64BIT
9600 ip[0] = 0x0d105810; /* basr 1,0; l 1,6(1); br 1 */
9601@@ -346,7 +346,7 @@ static int apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab,
9602 val - loc + 0xffffUL < 0x1ffffeUL) ||
9603 (r_type == R_390_PLT32DBL &&
9604 val - loc + 0xffffffffULL < 0x1fffffffeULL)))
9605- val = (Elf_Addr) me->module_core +
9606+ val = (Elf_Addr) me->module_core_rx +
9607 me->arch.plt_offset +
9608 info->plt_offset;
9609 val += rela->r_addend - loc;
9610@@ -368,7 +368,7 @@ static int apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab,
9611 case R_390_GOTOFF32: /* 32 bit offset to GOT. */
9612 case R_390_GOTOFF64: /* 64 bit offset to GOT. */
9613 val = val + rela->r_addend -
9614- ((Elf_Addr) me->module_core + me->arch.got_offset);
9615+ ((Elf_Addr) me->module_core_rw + me->arch.got_offset);
9616 if (r_type == R_390_GOTOFF16)
9617 rc = apply_rela_bits(loc, val, 0, 16, 0);
9618 else if (r_type == R_390_GOTOFF32)
9619@@ -378,7 +378,7 @@ static int apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab,
9620 break;
9621 case R_390_GOTPC: /* 32 bit PC relative offset to GOT. */
9622 case R_390_GOTPCDBL: /* 32 bit PC rel. off. to GOT shifted by 1. */
9623- val = (Elf_Addr) me->module_core + me->arch.got_offset +
9624+ val = (Elf_Addr) me->module_core_rw + me->arch.got_offset +
9625 rela->r_addend - loc;
9626 if (r_type == R_390_GOTPC)
9627 rc = apply_rela_bits(loc, val, 1, 32, 0);
9628diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c
9629index 13fc097..84d375f 100644
9630--- a/arch/s390/kernel/process.c
9631+++ b/arch/s390/kernel/process.c
9632@@ -227,27 +227,3 @@ unsigned long get_wchan(struct task_struct *p)
9633 }
9634 return 0;
9635 }
9636-
9637-unsigned long arch_align_stack(unsigned long sp)
9638-{
9639- if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space)
9640- sp -= get_random_int() & ~PAGE_MASK;
9641- return sp & ~0xf;
9642-}
9643-
9644-static inline unsigned long brk_rnd(void)
9645-{
9646- /* 8MB for 32bit, 1GB for 64bit */
9647- if (is_32bit_task())
9648- return (get_random_int() & 0x7ffUL) << PAGE_SHIFT;
9649- else
9650- return (get_random_int() & 0x3ffffUL) << PAGE_SHIFT;
9651-}
9652-
9653-unsigned long arch_randomize_brk(struct mm_struct *mm)
9654-{
9655- unsigned long ret;
9656-
9657- ret = PAGE_ALIGN(mm->brk + brk_rnd());
9658- return (ret > mm->brk) ? ret : mm->brk;
9659-}
9660diff --git a/arch/s390/mm/mmap.c b/arch/s390/mm/mmap.c
9661index 179a2c2..4ba9137 100644
9662--- a/arch/s390/mm/mmap.c
9663+++ b/arch/s390/mm/mmap.c
9664@@ -62,6 +62,12 @@ static inline int mmap_is_legacy(void)
9665
9666 static unsigned long mmap_rnd(void)
9667 {
9668+
9669+#ifdef CONFIG_PAX_RANDMMAP
9670+ if (current->mm->pax_flags & MF_PAX_RANDMMAP)
9671+ return 0;
9672+#endif
9673+
9674 if (!(current->flags & PF_RANDOMIZE))
9675 return 0;
9676 if (is_32bit_task())
9677@@ -204,9 +210,21 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
9678 */
9679 if (mmap_is_legacy()) {
9680 mm->mmap_base = mmap_base_legacy();
9681+
9682+#ifdef CONFIG_PAX_RANDMMAP
9683+ if (mm->pax_flags & MF_PAX_RANDMMAP)
9684+ mm->mmap_base += mm->delta_mmap;
9685+#endif
9686+
9687 mm->get_unmapped_area = arch_get_unmapped_area;
9688 } else {
9689 mm->mmap_base = mmap_base();
9690+
9691+#ifdef CONFIG_PAX_RANDMMAP
9692+ if (mm->pax_flags & MF_PAX_RANDMMAP)
9693+ mm->mmap_base -= mm->delta_mmap + mm->delta_stack;
9694+#endif
9695+
9696 mm->get_unmapped_area = arch_get_unmapped_area_topdown;
9697 }
9698 }
9699@@ -279,9 +297,21 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
9700 */
9701 if (mmap_is_legacy()) {
9702 mm->mmap_base = mmap_base_legacy();
9703+
9704+#ifdef CONFIG_PAX_RANDMMAP
9705+ if (mm->pax_flags & MF_PAX_RANDMMAP)
9706+ mm->mmap_base += mm->delta_mmap;
9707+#endif
9708+
9709 mm->get_unmapped_area = s390_get_unmapped_area;
9710 } else {
9711 mm->mmap_base = mmap_base();
9712+
9713+#ifdef CONFIG_PAX_RANDMMAP
9714+ if (mm->pax_flags & MF_PAX_RANDMMAP)
9715+ mm->mmap_base -= mm->delta_mmap + mm->delta_stack;
9716+#endif
9717+
9718 mm->get_unmapped_area = s390_get_unmapped_area_topdown;
9719 }
9720 }
9721diff --git a/arch/score/include/asm/cache.h b/arch/score/include/asm/cache.h
9722index ae3d59f..f65f075 100644
9723--- a/arch/score/include/asm/cache.h
9724+++ b/arch/score/include/asm/cache.h
9725@@ -1,7 +1,9 @@
9726 #ifndef _ASM_SCORE_CACHE_H
9727 #define _ASM_SCORE_CACHE_H
9728
9729+#include <linux/const.h>
9730+
9731 #define L1_CACHE_SHIFT 4
9732-#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
9733+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
9734
9735 #endif /* _ASM_SCORE_CACHE_H */
9736diff --git a/arch/score/include/asm/exec.h b/arch/score/include/asm/exec.h
9737index f9f3cd5..58ff438 100644
9738--- a/arch/score/include/asm/exec.h
9739+++ b/arch/score/include/asm/exec.h
9740@@ -1,6 +1,6 @@
9741 #ifndef _ASM_SCORE_EXEC_H
9742 #define _ASM_SCORE_EXEC_H
9743
9744-extern unsigned long arch_align_stack(unsigned long sp);
9745+#define arch_align_stack(x) (x)
9746
9747 #endif /* _ASM_SCORE_EXEC_H */
9748diff --git a/arch/score/kernel/process.c b/arch/score/kernel/process.c
9749index a1519ad3..e8ac1ff 100644
9750--- a/arch/score/kernel/process.c
9751+++ b/arch/score/kernel/process.c
9752@@ -116,8 +116,3 @@ unsigned long get_wchan(struct task_struct *task)
9753
9754 return task_pt_regs(task)->cp0_epc;
9755 }
9756-
9757-unsigned long arch_align_stack(unsigned long sp)
9758-{
9759- return sp;
9760-}
9761diff --git a/arch/sh/include/asm/cache.h b/arch/sh/include/asm/cache.h
9762index ef9e555..331bd29 100644
9763--- a/arch/sh/include/asm/cache.h
9764+++ b/arch/sh/include/asm/cache.h
9765@@ -9,10 +9,11 @@
9766 #define __ASM_SH_CACHE_H
9767 #ifdef __KERNEL__
9768
9769+#include <linux/const.h>
9770 #include <linux/init.h>
9771 #include <cpu/cache.h>
9772
9773-#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
9774+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
9775
9776 #define __read_mostly __attribute__((__section__(".data..read_mostly")))
9777
9778diff --git a/arch/sh/mm/mmap.c b/arch/sh/mm/mmap.c
9779index 6777177..cb5e44f 100644
9780--- a/arch/sh/mm/mmap.c
9781+++ b/arch/sh/mm/mmap.c
9782@@ -36,6 +36,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
9783 struct mm_struct *mm = current->mm;
9784 struct vm_area_struct *vma;
9785 int do_colour_align;
9786+ unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
9787 struct vm_unmapped_area_info info;
9788
9789 if (flags & MAP_FIXED) {
9790@@ -55,6 +56,10 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
9791 if (filp || (flags & MAP_SHARED))
9792 do_colour_align = 1;
9793
9794+#ifdef CONFIG_PAX_RANDMMAP
9795+ if (!(mm->pax_flags & MF_PAX_RANDMMAP))
9796+#endif
9797+
9798 if (addr) {
9799 if (do_colour_align)
9800 addr = COLOUR_ALIGN(addr, pgoff);
9801@@ -62,14 +67,13 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
9802 addr = PAGE_ALIGN(addr);
9803
9804 vma = find_vma(mm, addr);
9805- if (TASK_SIZE - len >= addr &&
9806- (!vma || addr + len <= vma->vm_start))
9807+ if (TASK_SIZE - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
9808 return addr;
9809 }
9810
9811 info.flags = 0;
9812 info.length = len;
9813- info.low_limit = TASK_UNMAPPED_BASE;
9814+ info.low_limit = mm->mmap_base;
9815 info.high_limit = TASK_SIZE;
9816 info.align_mask = do_colour_align ? (PAGE_MASK & shm_align_mask) : 0;
9817 info.align_offset = pgoff << PAGE_SHIFT;
9818@@ -85,6 +89,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
9819 struct mm_struct *mm = current->mm;
9820 unsigned long addr = addr0;
9821 int do_colour_align;
9822+ unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
9823 struct vm_unmapped_area_info info;
9824
9825 if (flags & MAP_FIXED) {
9826@@ -104,6 +109,10 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
9827 if (filp || (flags & MAP_SHARED))
9828 do_colour_align = 1;
9829
9830+#ifdef CONFIG_PAX_RANDMMAP
9831+ if (!(mm->pax_flags & MF_PAX_RANDMMAP))
9832+#endif
9833+
9834 /* requesting a specific address */
9835 if (addr) {
9836 if (do_colour_align)
9837@@ -112,8 +121,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
9838 addr = PAGE_ALIGN(addr);
9839
9840 vma = find_vma(mm, addr);
9841- if (TASK_SIZE - len >= addr &&
9842- (!vma || addr + len <= vma->vm_start))
9843+ if (TASK_SIZE - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
9844 return addr;
9845 }
9846
9847@@ -135,6 +143,12 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
9848 VM_BUG_ON(addr != -ENOMEM);
9849 info.flags = 0;
9850 info.low_limit = TASK_UNMAPPED_BASE;
9851+
9852+#ifdef CONFIG_PAX_RANDMMAP
9853+ if (mm->pax_flags & MF_PAX_RANDMMAP)
9854+ info.low_limit += mm->delta_mmap;
9855+#endif
9856+
9857 info.high_limit = TASK_SIZE;
9858 addr = vm_unmapped_area(&info);
9859 }
9860diff --git a/arch/sparc/include/asm/atomic_64.h b/arch/sparc/include/asm/atomic_64.h
9861index 4082749..fd97781 100644
9862--- a/arch/sparc/include/asm/atomic_64.h
9863+++ b/arch/sparc/include/asm/atomic_64.h
9864@@ -15,18 +15,38 @@
9865 #define ATOMIC64_INIT(i) { (i) }
9866
9867 #define atomic_read(v) ACCESS_ONCE((v)->counter)
9868+static inline int atomic_read_unchecked(const atomic_unchecked_t *v)
9869+{
9870+ return ACCESS_ONCE(v->counter);
9871+}
9872 #define atomic64_read(v) ACCESS_ONCE((v)->counter)
9873+static inline long atomic64_read_unchecked(const atomic64_unchecked_t *v)
9874+{
9875+ return ACCESS_ONCE(v->counter);
9876+}
9877
9878 #define atomic_set(v, i) (((v)->counter) = i)
9879+static inline void atomic_set_unchecked(atomic_unchecked_t *v, int i)
9880+{
9881+ v->counter = i;
9882+}
9883 #define atomic64_set(v, i) (((v)->counter) = i)
9884+static inline void atomic64_set_unchecked(atomic64_unchecked_t *v, long i)
9885+{
9886+ v->counter = i;
9887+}
9888
9889-#define ATOMIC_OP(op) \
9890-void atomic_##op(int, atomic_t *); \
9891-void atomic64_##op(long, atomic64_t *);
9892+#define __ATOMIC_OP(op, suffix) \
9893+void atomic_##op##suffix(int, atomic##suffix##_t *); \
9894+void atomic64_##op##suffix(long, atomic64##suffix##_t *);
9895
9896-#define ATOMIC_OP_RETURN(op) \
9897-int atomic_##op##_return(int, atomic_t *); \
9898-long atomic64_##op##_return(long, atomic64_t *);
9899+#define ATOMIC_OP(op) __ATOMIC_OP(op, ) __ATOMIC_OP(op, _unchecked)
9900+
9901+#define __ATOMIC_OP_RETURN(op, suffix) \
9902+int atomic_##op##_return##suffix(int, atomic##suffix##_t *); \
9903+long atomic64_##op##_return##suffix(long, atomic64##suffix##_t *);
9904+
9905+#define ATOMIC_OP_RETURN(op) __ATOMIC_OP_RETURN(op, ) __ATOMIC_OP_RETURN(op, _unchecked)
9906
9907 #define ATOMIC_OPS(op) ATOMIC_OP(op) ATOMIC_OP_RETURN(op)
9908
9909@@ -35,13 +55,23 @@ ATOMIC_OPS(sub)
9910
9911 #undef ATOMIC_OPS
9912 #undef ATOMIC_OP_RETURN
9913+#undef __ATOMIC_OP_RETURN
9914 #undef ATOMIC_OP
9915+#undef __ATOMIC_OP
9916
9917 #define atomic_dec_return(v) atomic_sub_return(1, v)
9918 #define atomic64_dec_return(v) atomic64_sub_return(1, v)
9919
9920 #define atomic_inc_return(v) atomic_add_return(1, v)
9921+static inline int atomic_inc_return_unchecked(atomic_unchecked_t *v)
9922+{
9923+ return atomic_add_return_unchecked(1, v);
9924+}
9925 #define atomic64_inc_return(v) atomic64_add_return(1, v)
9926+static inline long atomic64_inc_return_unchecked(atomic64_unchecked_t *v)
9927+{
9928+ return atomic64_add_return_unchecked(1, v);
9929+}
9930
9931 /*
9932 * atomic_inc_and_test - increment and test
9933@@ -52,6 +82,10 @@ ATOMIC_OPS(sub)
9934 * other cases.
9935 */
9936 #define atomic_inc_and_test(v) (atomic_inc_return(v) == 0)
9937+static inline int atomic_inc_and_test_unchecked(atomic_unchecked_t *v)
9938+{
9939+ return atomic_inc_return_unchecked(v) == 0;
9940+}
9941 #define atomic64_inc_and_test(v) (atomic64_inc_return(v) == 0)
9942
9943 #define atomic_sub_and_test(i, v) (atomic_sub_return(i, v) == 0)
9944@@ -61,25 +95,60 @@ ATOMIC_OPS(sub)
9945 #define atomic64_dec_and_test(v) (atomic64_sub_return(1, v) == 0)
9946
9947 #define atomic_inc(v) atomic_add(1, v)
9948+static inline void atomic_inc_unchecked(atomic_unchecked_t *v)
9949+{
9950+ atomic_add_unchecked(1, v);
9951+}
9952 #define atomic64_inc(v) atomic64_add(1, v)
9953+static inline void atomic64_inc_unchecked(atomic64_unchecked_t *v)
9954+{
9955+ atomic64_add_unchecked(1, v);
9956+}
9957
9958 #define atomic_dec(v) atomic_sub(1, v)
9959+static inline void atomic_dec_unchecked(atomic_unchecked_t *v)
9960+{
9961+ atomic_sub_unchecked(1, v);
9962+}
9963 #define atomic64_dec(v) atomic64_sub(1, v)
9964+static inline void atomic64_dec_unchecked(atomic64_unchecked_t *v)
9965+{
9966+ atomic64_sub_unchecked(1, v);
9967+}
9968
9969 #define atomic_add_negative(i, v) (atomic_add_return(i, v) < 0)
9970 #define atomic64_add_negative(i, v) (atomic64_add_return(i, v) < 0)
9971
9972 #define atomic_cmpxchg(v, o, n) (cmpxchg(&((v)->counter), (o), (n)))
9973+static inline int atomic_cmpxchg_unchecked(atomic_unchecked_t *v, int old, int new)
9974+{
9975+ return cmpxchg(&v->counter, old, new);
9976+}
9977 #define atomic_xchg(v, new) (xchg(&((v)->counter), new))
9978+static inline int atomic_xchg_unchecked(atomic_unchecked_t *v, int new)
9979+{
9980+ return xchg(&v->counter, new);
9981+}
9982
9983 static inline int __atomic_add_unless(atomic_t *v, int a, int u)
9984 {
9985- int c, old;
9986+ int c, old, new;
9987 c = atomic_read(v);
9988 for (;;) {
9989- if (unlikely(c == (u)))
9990+ if (unlikely(c == u))
9991 break;
9992- old = atomic_cmpxchg((v), c, c + (a));
9993+
9994+ asm volatile("addcc %2, %0, %0\n"
9995+
9996+#ifdef CONFIG_PAX_REFCOUNT
9997+ "tvs %%icc, 6\n"
9998+#endif
9999+
10000+ : "=r" (new)
10001+ : "0" (c), "ir" (a)
10002+ : "cc");
10003+
10004+ old = atomic_cmpxchg(v, c, new);
10005 if (likely(old == c))
10006 break;
10007 c = old;
10008@@ -90,20 +159,35 @@ static inline int __atomic_add_unless(atomic_t *v, int a, int u)
10009 #define atomic64_cmpxchg(v, o, n) \
10010 ((__typeof__((v)->counter))cmpxchg(&((v)->counter), (o), (n)))
10011 #define atomic64_xchg(v, new) (xchg(&((v)->counter), new))
10012+static inline long atomic64_xchg_unchecked(atomic64_unchecked_t *v, long new)
10013+{
10014+ return xchg(&v->counter, new);
10015+}
10016
10017 static inline long atomic64_add_unless(atomic64_t *v, long a, long u)
10018 {
10019- long c, old;
10020+ long c, old, new;
10021 c = atomic64_read(v);
10022 for (;;) {
10023- if (unlikely(c == (u)))
10024+ if (unlikely(c == u))
10025 break;
10026- old = atomic64_cmpxchg((v), c, c + (a));
10027+
10028+ asm volatile("addcc %2, %0, %0\n"
10029+
10030+#ifdef CONFIG_PAX_REFCOUNT
10031+ "tvs %%xcc, 6\n"
10032+#endif
10033+
10034+ : "=r" (new)
10035+ : "0" (c), "ir" (a)
10036+ : "cc");
10037+
10038+ old = atomic64_cmpxchg(v, c, new);
10039 if (likely(old == c))
10040 break;
10041 c = old;
10042 }
10043- return c != (u);
10044+ return c != u;
10045 }
10046
10047 #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
10048diff --git a/arch/sparc/include/asm/barrier_64.h b/arch/sparc/include/asm/barrier_64.h
10049index 7664894..45a974b 100644
10050--- a/arch/sparc/include/asm/barrier_64.h
10051+++ b/arch/sparc/include/asm/barrier_64.h
10052@@ -60,7 +60,7 @@ do { __asm__ __volatile__("ba,pt %%xcc, 1f\n\t" \
10053 do { \
10054 compiletime_assert_atomic_type(*p); \
10055 barrier(); \
10056- ACCESS_ONCE(*p) = (v); \
10057+ ACCESS_ONCE_RW(*p) = (v); \
10058 } while (0)
10059
10060 #define smp_load_acquire(p) \
10061diff --git a/arch/sparc/include/asm/cache.h b/arch/sparc/include/asm/cache.h
10062index 5bb6991..5c2132e 100644
10063--- a/arch/sparc/include/asm/cache.h
10064+++ b/arch/sparc/include/asm/cache.h
10065@@ -7,10 +7,12 @@
10066 #ifndef _SPARC_CACHE_H
10067 #define _SPARC_CACHE_H
10068
10069+#include <linux/const.h>
10070+
10071 #define ARCH_SLAB_MINALIGN __alignof__(unsigned long long)
10072
10073 #define L1_CACHE_SHIFT 5
10074-#define L1_CACHE_BYTES 32
10075+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
10076
10077 #ifdef CONFIG_SPARC32
10078 #define SMP_CACHE_BYTES_SHIFT 5
10079diff --git a/arch/sparc/include/asm/elf_32.h b/arch/sparc/include/asm/elf_32.h
10080index a24e41f..47677ff 100644
10081--- a/arch/sparc/include/asm/elf_32.h
10082+++ b/arch/sparc/include/asm/elf_32.h
10083@@ -114,6 +114,13 @@ typedef struct {
10084
10085 #define ELF_ET_DYN_BASE (TASK_UNMAPPED_BASE)
10086
10087+#ifdef CONFIG_PAX_ASLR
10088+#define PAX_ELF_ET_DYN_BASE 0x10000UL
10089+
10090+#define PAX_DELTA_MMAP_LEN 16
10091+#define PAX_DELTA_STACK_LEN 16
10092+#endif
10093+
10094 /* This yields a mask that user programs can use to figure out what
10095 instruction set this cpu supports. This can NOT be done in userspace
10096 on Sparc. */
10097diff --git a/arch/sparc/include/asm/elf_64.h b/arch/sparc/include/asm/elf_64.h
10098index 370ca1e..d4f4a98 100644
10099--- a/arch/sparc/include/asm/elf_64.h
10100+++ b/arch/sparc/include/asm/elf_64.h
10101@@ -189,6 +189,13 @@ typedef struct {
10102 #define ELF_ET_DYN_BASE 0x0000010000000000UL
10103 #define COMPAT_ELF_ET_DYN_BASE 0x0000000070000000UL
10104
10105+#ifdef CONFIG_PAX_ASLR
10106+#define PAX_ELF_ET_DYN_BASE (test_thread_flag(TIF_32BIT) ? 0x10000UL : 0x100000UL)
10107+
10108+#define PAX_DELTA_MMAP_LEN (test_thread_flag(TIF_32BIT) ? 14 : 28)
10109+#define PAX_DELTA_STACK_LEN (test_thread_flag(TIF_32BIT) ? 15 : 29)
10110+#endif
10111+
10112 extern unsigned long sparc64_elf_hwcap;
10113 #define ELF_HWCAP sparc64_elf_hwcap
10114
10115diff --git a/arch/sparc/include/asm/pgalloc_32.h b/arch/sparc/include/asm/pgalloc_32.h
10116index a3890da..f6a408e 100644
10117--- a/arch/sparc/include/asm/pgalloc_32.h
10118+++ b/arch/sparc/include/asm/pgalloc_32.h
10119@@ -35,6 +35,7 @@ static inline void pgd_set(pgd_t * pgdp, pmd_t * pmdp)
10120 }
10121
10122 #define pgd_populate(MM, PGD, PMD) pgd_set(PGD, PMD)
10123+#define pgd_populate_kernel(MM, PGD, PMD) pgd_populate((MM), (PGD), (PMD))
10124
10125 static inline pmd_t *pmd_alloc_one(struct mm_struct *mm,
10126 unsigned long address)
10127diff --git a/arch/sparc/include/asm/pgalloc_64.h b/arch/sparc/include/asm/pgalloc_64.h
10128index 5e31871..13469c6 100644
10129--- a/arch/sparc/include/asm/pgalloc_64.h
10130+++ b/arch/sparc/include/asm/pgalloc_64.h
10131@@ -21,6 +21,7 @@ static inline void __pgd_populate(pgd_t *pgd, pud_t *pud)
10132 }
10133
10134 #define pgd_populate(MM, PGD, PUD) __pgd_populate(PGD, PUD)
10135+#define pgd_populate_kernel(MM, PGD, PMD) pgd_populate((MM), (PGD), (PMD))
10136
10137 static inline pgd_t *pgd_alloc(struct mm_struct *mm)
10138 {
10139@@ -38,6 +39,7 @@ static inline void __pud_populate(pud_t *pud, pmd_t *pmd)
10140 }
10141
10142 #define pud_populate(MM, PUD, PMD) __pud_populate(PUD, PMD)
10143+#define pud_populate_kernel(MM, PUD, PMD) pud_populate((MM), (PUD), (PMD))
10144
10145 static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr)
10146 {
10147diff --git a/arch/sparc/include/asm/pgtable.h b/arch/sparc/include/asm/pgtable.h
10148index 59ba6f6..4518128 100644
10149--- a/arch/sparc/include/asm/pgtable.h
10150+++ b/arch/sparc/include/asm/pgtable.h
10151@@ -5,4 +5,8 @@
10152 #else
10153 #include <asm/pgtable_32.h>
10154 #endif
10155+
10156+#define ktla_ktva(addr) (addr)
10157+#define ktva_ktla(addr) (addr)
10158+
10159 #endif
10160diff --git a/arch/sparc/include/asm/pgtable_32.h b/arch/sparc/include/asm/pgtable_32.h
10161index f06b36a..bca3189 100644
10162--- a/arch/sparc/include/asm/pgtable_32.h
10163+++ b/arch/sparc/include/asm/pgtable_32.h
10164@@ -51,6 +51,9 @@ unsigned long __init bootmem_init(unsigned long *pages_avail);
10165 #define PAGE_SHARED SRMMU_PAGE_SHARED
10166 #define PAGE_COPY SRMMU_PAGE_COPY
10167 #define PAGE_READONLY SRMMU_PAGE_RDONLY
10168+#define PAGE_SHARED_NOEXEC SRMMU_PAGE_SHARED_NOEXEC
10169+#define PAGE_COPY_NOEXEC SRMMU_PAGE_COPY_NOEXEC
10170+#define PAGE_READONLY_NOEXEC SRMMU_PAGE_RDONLY_NOEXEC
10171 #define PAGE_KERNEL SRMMU_PAGE_KERNEL
10172
10173 /* Top-level page directory - dummy used by init-mm.
10174@@ -63,18 +66,18 @@ extern unsigned long ptr_in_current_pgd;
10175
10176 /* xwr */
10177 #define __P000 PAGE_NONE
10178-#define __P001 PAGE_READONLY
10179-#define __P010 PAGE_COPY
10180-#define __P011 PAGE_COPY
10181+#define __P001 PAGE_READONLY_NOEXEC
10182+#define __P010 PAGE_COPY_NOEXEC
10183+#define __P011 PAGE_COPY_NOEXEC
10184 #define __P100 PAGE_READONLY
10185 #define __P101 PAGE_READONLY
10186 #define __P110 PAGE_COPY
10187 #define __P111 PAGE_COPY
10188
10189 #define __S000 PAGE_NONE
10190-#define __S001 PAGE_READONLY
10191-#define __S010 PAGE_SHARED
10192-#define __S011 PAGE_SHARED
10193+#define __S001 PAGE_READONLY_NOEXEC
10194+#define __S010 PAGE_SHARED_NOEXEC
10195+#define __S011 PAGE_SHARED_NOEXEC
10196 #define __S100 PAGE_READONLY
10197 #define __S101 PAGE_READONLY
10198 #define __S110 PAGE_SHARED
10199diff --git a/arch/sparc/include/asm/pgtsrmmu.h b/arch/sparc/include/asm/pgtsrmmu.h
10200index ae51a11..eadfd03 100644
10201--- a/arch/sparc/include/asm/pgtsrmmu.h
10202+++ b/arch/sparc/include/asm/pgtsrmmu.h
10203@@ -111,6 +111,11 @@
10204 SRMMU_EXEC | SRMMU_REF)
10205 #define SRMMU_PAGE_RDONLY __pgprot(SRMMU_VALID | SRMMU_CACHE | \
10206 SRMMU_EXEC | SRMMU_REF)
10207+
10208+#define SRMMU_PAGE_SHARED_NOEXEC __pgprot(SRMMU_VALID | SRMMU_CACHE | SRMMU_WRITE | SRMMU_REF)
10209+#define SRMMU_PAGE_COPY_NOEXEC __pgprot(SRMMU_VALID | SRMMU_CACHE | SRMMU_REF)
10210+#define SRMMU_PAGE_RDONLY_NOEXEC __pgprot(SRMMU_VALID | SRMMU_CACHE | SRMMU_REF)
10211+
10212 #define SRMMU_PAGE_KERNEL __pgprot(SRMMU_VALID | SRMMU_CACHE | SRMMU_PRIV | \
10213 SRMMU_DIRTY | SRMMU_REF)
10214
10215diff --git a/arch/sparc/include/asm/setup.h b/arch/sparc/include/asm/setup.h
10216index 29d64b1..4272fe8 100644
10217--- a/arch/sparc/include/asm/setup.h
10218+++ b/arch/sparc/include/asm/setup.h
10219@@ -55,8 +55,8 @@ int handle_ldf_stq(u32 insn, struct pt_regs *regs);
10220 void handle_ld_nf(u32 insn, struct pt_regs *regs);
10221
10222 /* init_64.c */
10223-extern atomic_t dcpage_flushes;
10224-extern atomic_t dcpage_flushes_xcall;
10225+extern atomic_unchecked_t dcpage_flushes;
10226+extern atomic_unchecked_t dcpage_flushes_xcall;
10227
10228 extern int sysctl_tsb_ratio;
10229 #endif
10230diff --git a/arch/sparc/include/asm/spinlock_64.h b/arch/sparc/include/asm/spinlock_64.h
10231index 9689176..63c18ea 100644
10232--- a/arch/sparc/include/asm/spinlock_64.h
10233+++ b/arch/sparc/include/asm/spinlock_64.h
10234@@ -92,14 +92,19 @@ static inline void arch_spin_lock_flags(arch_spinlock_t *lock, unsigned long fla
10235
10236 /* Multi-reader locks, these are much saner than the 32-bit Sparc ones... */
10237
10238-static void inline arch_read_lock(arch_rwlock_t *lock)
10239+static inline void arch_read_lock(arch_rwlock_t *lock)
10240 {
10241 unsigned long tmp1, tmp2;
10242
10243 __asm__ __volatile__ (
10244 "1: ldsw [%2], %0\n"
10245 " brlz,pn %0, 2f\n"
10246-"4: add %0, 1, %1\n"
10247+"4: addcc %0, 1, %1\n"
10248+
10249+#ifdef CONFIG_PAX_REFCOUNT
10250+" tvs %%icc, 6\n"
10251+#endif
10252+
10253 " cas [%2], %0, %1\n"
10254 " cmp %0, %1\n"
10255 " bne,pn %%icc, 1b\n"
10256@@ -112,10 +117,10 @@ static void inline arch_read_lock(arch_rwlock_t *lock)
10257 " .previous"
10258 : "=&r" (tmp1), "=&r" (tmp2)
10259 : "r" (lock)
10260- : "memory");
10261+ : "memory", "cc");
10262 }
10263
10264-static int inline arch_read_trylock(arch_rwlock_t *lock)
10265+static inline int arch_read_trylock(arch_rwlock_t *lock)
10266 {
10267 int tmp1, tmp2;
10268
10269@@ -123,7 +128,12 @@ static int inline arch_read_trylock(arch_rwlock_t *lock)
10270 "1: ldsw [%2], %0\n"
10271 " brlz,a,pn %0, 2f\n"
10272 " mov 0, %0\n"
10273-" add %0, 1, %1\n"
10274+" addcc %0, 1, %1\n"
10275+
10276+#ifdef CONFIG_PAX_REFCOUNT
10277+" tvs %%icc, 6\n"
10278+#endif
10279+
10280 " cas [%2], %0, %1\n"
10281 " cmp %0, %1\n"
10282 " bne,pn %%icc, 1b\n"
10283@@ -136,13 +146,18 @@ static int inline arch_read_trylock(arch_rwlock_t *lock)
10284 return tmp1;
10285 }
10286
10287-static void inline arch_read_unlock(arch_rwlock_t *lock)
10288+static inline void arch_read_unlock(arch_rwlock_t *lock)
10289 {
10290 unsigned long tmp1, tmp2;
10291
10292 __asm__ __volatile__(
10293 "1: lduw [%2], %0\n"
10294-" sub %0, 1, %1\n"
10295+" subcc %0, 1, %1\n"
10296+
10297+#ifdef CONFIG_PAX_REFCOUNT
10298+" tvs %%icc, 6\n"
10299+#endif
10300+
10301 " cas [%2], %0, %1\n"
10302 " cmp %0, %1\n"
10303 " bne,pn %%xcc, 1b\n"
10304@@ -152,7 +167,7 @@ static void inline arch_read_unlock(arch_rwlock_t *lock)
10305 : "memory");
10306 }
10307
10308-static void inline arch_write_lock(arch_rwlock_t *lock)
10309+static inline void arch_write_lock(arch_rwlock_t *lock)
10310 {
10311 unsigned long mask, tmp1, tmp2;
10312
10313@@ -177,7 +192,7 @@ static void inline arch_write_lock(arch_rwlock_t *lock)
10314 : "memory");
10315 }
10316
10317-static void inline arch_write_unlock(arch_rwlock_t *lock)
10318+static inline void arch_write_unlock(arch_rwlock_t *lock)
10319 {
10320 __asm__ __volatile__(
10321 " stw %%g0, [%0]"
10322@@ -186,7 +201,7 @@ static void inline arch_write_unlock(arch_rwlock_t *lock)
10323 : "memory");
10324 }
10325
10326-static int inline arch_write_trylock(arch_rwlock_t *lock)
10327+static inline int arch_write_trylock(arch_rwlock_t *lock)
10328 {
10329 unsigned long mask, tmp1, tmp2, result;
10330
10331diff --git a/arch/sparc/include/asm/thread_info_32.h b/arch/sparc/include/asm/thread_info_32.h
10332index fd7bd0a..2e2fa7a 100644
10333--- a/arch/sparc/include/asm/thread_info_32.h
10334+++ b/arch/sparc/include/asm/thread_info_32.h
10335@@ -47,6 +47,7 @@ struct thread_info {
10336 struct reg_window32 reg_window[NSWINS]; /* align for ldd! */
10337 unsigned long rwbuf_stkptrs[NSWINS];
10338 unsigned long w_saved;
10339+ unsigned long lowest_stack;
10340 };
10341
10342 /*
10343diff --git a/arch/sparc/include/asm/thread_info_64.h b/arch/sparc/include/asm/thread_info_64.h
10344index ff45516..73001ab 100644
10345--- a/arch/sparc/include/asm/thread_info_64.h
10346+++ b/arch/sparc/include/asm/thread_info_64.h
10347@@ -61,6 +61,8 @@ struct thread_info {
10348 struct pt_regs *kern_una_regs;
10349 unsigned int kern_una_insn;
10350
10351+ unsigned long lowest_stack;
10352+
10353 unsigned long fpregs[(7 * 256) / sizeof(unsigned long)]
10354 __attribute__ ((aligned(64)));
10355 };
10356@@ -184,12 +186,13 @@ register struct thread_info *current_thread_info_reg asm("g6");
10357 #define TIF_NEED_RESCHED 3 /* rescheduling necessary */
10358 /* flag bit 4 is available */
10359 #define TIF_UNALIGNED 5 /* allowed to do unaligned accesses */
10360-/* flag bit 6 is available */
10361+#define TIF_GRSEC_SETXID 6 /* update credentials on syscall entry/exit */
10362 #define TIF_32BIT 7 /* 32-bit binary */
10363 #define TIF_NOHZ 8 /* in adaptive nohz mode */
10364 #define TIF_SECCOMP 9 /* secure computing */
10365 #define TIF_SYSCALL_AUDIT 10 /* syscall auditing active */
10366 #define TIF_SYSCALL_TRACEPOINT 11 /* syscall tracepoint instrumentation */
10367+
10368 /* NOTE: Thread flags >= 12 should be ones we have no interest
10369 * in using in assembly, else we can't use the mask as
10370 * an immediate value in instructions such as andcc.
10371@@ -209,12 +212,17 @@ register struct thread_info *current_thread_info_reg asm("g6");
10372 #define _TIF_SYSCALL_AUDIT (1<<TIF_SYSCALL_AUDIT)
10373 #define _TIF_SYSCALL_TRACEPOINT (1<<TIF_SYSCALL_TRACEPOINT)
10374 #define _TIF_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG)
10375+#define _TIF_GRSEC_SETXID (1<<TIF_GRSEC_SETXID)
10376
10377 #define _TIF_USER_WORK_MASK ((0xff << TI_FLAG_WSAVED_SHIFT) | \
10378 _TIF_DO_NOTIFY_RESUME_MASK | \
10379 _TIF_NEED_RESCHED)
10380 #define _TIF_DO_NOTIFY_RESUME_MASK (_TIF_NOTIFY_RESUME | _TIF_SIGPENDING)
10381
10382+#define _TIF_WORK_SYSCALL \
10383+ (_TIF_SYSCALL_TRACE | _TIF_SECCOMP | _TIF_SYSCALL_AUDIT | \
10384+ _TIF_SYSCALL_TRACEPOINT | _TIF_NOHZ | _TIF_GRSEC_SETXID)
10385+
10386 #define is_32bit_task() (test_thread_flag(TIF_32BIT))
10387
10388 /*
10389diff --git a/arch/sparc/include/asm/uaccess.h b/arch/sparc/include/asm/uaccess.h
10390index bd56c28..4b63d83 100644
10391--- a/arch/sparc/include/asm/uaccess.h
10392+++ b/arch/sparc/include/asm/uaccess.h
10393@@ -1,5 +1,6 @@
10394 #ifndef ___ASM_SPARC_UACCESS_H
10395 #define ___ASM_SPARC_UACCESS_H
10396+
10397 #if defined(__sparc__) && defined(__arch64__)
10398 #include <asm/uaccess_64.h>
10399 #else
10400diff --git a/arch/sparc/include/asm/uaccess_32.h b/arch/sparc/include/asm/uaccess_32.h
10401index 64ee103..388aef0 100644
10402--- a/arch/sparc/include/asm/uaccess_32.h
10403+++ b/arch/sparc/include/asm/uaccess_32.h
10404@@ -47,6 +47,7 @@
10405 #define __user_ok(addr, size) ({ (void)(size); (addr) < STACK_TOP; })
10406 #define __kernel_ok (segment_eq(get_fs(), KERNEL_DS))
10407 #define __access_ok(addr, size) (__user_ok((addr) & get_fs().seg, (size)))
10408+#define access_ok_noprefault(type, addr, size) access_ok((type), (addr), (size))
10409 #define access_ok(type, addr, size) \
10410 ({ (void)(type); __access_ok((unsigned long)(addr), size); })
10411
10412@@ -313,27 +314,46 @@ unsigned long __copy_user(void __user *to, const void __user *from, unsigned lon
10413
10414 static inline unsigned long copy_to_user(void __user *to, const void *from, unsigned long n)
10415 {
10416- if (n && __access_ok((unsigned long) to, n))
10417+ if ((long)n < 0)
10418+ return n;
10419+
10420+ if (n && __access_ok((unsigned long) to, n)) {
10421+ if (!__builtin_constant_p(n))
10422+ check_object_size(from, n, true);
10423 return __copy_user(to, (__force void __user *) from, n);
10424- else
10425+ } else
10426 return n;
10427 }
10428
10429 static inline unsigned long __copy_to_user(void __user *to, const void *from, unsigned long n)
10430 {
10431+ if ((long)n < 0)
10432+ return n;
10433+
10434+ if (!__builtin_constant_p(n))
10435+ check_object_size(from, n, true);
10436+
10437 return __copy_user(to, (__force void __user *) from, n);
10438 }
10439
10440 static inline unsigned long copy_from_user(void *to, const void __user *from, unsigned long n)
10441 {
10442- if (n && __access_ok((unsigned long) from, n))
10443+ if ((long)n < 0)
10444+ return n;
10445+
10446+ if (n && __access_ok((unsigned long) from, n)) {
10447+ if (!__builtin_constant_p(n))
10448+ check_object_size(to, n, false);
10449 return __copy_user((__force void __user *) to, from, n);
10450- else
10451+ } else
10452 return n;
10453 }
10454
10455 static inline unsigned long __copy_from_user(void *to, const void __user *from, unsigned long n)
10456 {
10457+ if ((long)n < 0)
10458+ return n;
10459+
10460 return __copy_user((__force void __user *) to, from, n);
10461 }
10462
10463diff --git a/arch/sparc/include/asm/uaccess_64.h b/arch/sparc/include/asm/uaccess_64.h
10464index a35194b..47dabc0d 100644
10465--- a/arch/sparc/include/asm/uaccess_64.h
10466+++ b/arch/sparc/include/asm/uaccess_64.h
10467@@ -10,6 +10,7 @@
10468 #include <linux/compiler.h>
10469 #include <linux/string.h>
10470 #include <linux/thread_info.h>
10471+#include <linux/kernel.h>
10472 #include <asm/asi.h>
10473 #include <asm/spitfire.h>
10474 #include <asm-generic/uaccess-unaligned.h>
10475@@ -54,6 +55,11 @@ static inline int __access_ok(const void __user * addr, unsigned long size)
10476 return 1;
10477 }
10478
10479+static inline int access_ok_noprefault(int type, const void __user * addr, unsigned long size)
10480+{
10481+ return 1;
10482+}
10483+
10484 static inline int access_ok(int type, const void __user * addr, unsigned long size)
10485 {
10486 return 1;
10487@@ -228,8 +234,15 @@ unsigned long copy_from_user_fixup(void *to, const void __user *from,
10488 static inline unsigned long __must_check
10489 copy_from_user(void *to, const void __user *from, unsigned long size)
10490 {
10491- unsigned long ret = ___copy_from_user(to, from, size);
10492+ unsigned long ret;
10493
10494+ if ((long)size < 0 || size > INT_MAX)
10495+ return size;
10496+
10497+ if (!__builtin_constant_p(size))
10498+ check_object_size(to, size, false);
10499+
10500+ ret = ___copy_from_user(to, from, size);
10501 if (unlikely(ret))
10502 ret = copy_from_user_fixup(to, from, size);
10503
10504@@ -245,8 +258,15 @@ unsigned long copy_to_user_fixup(void __user *to, const void *from,
10505 static inline unsigned long __must_check
10506 copy_to_user(void __user *to, const void *from, unsigned long size)
10507 {
10508- unsigned long ret = ___copy_to_user(to, from, size);
10509+ unsigned long ret;
10510
10511+ if ((long)size < 0 || size > INT_MAX)
10512+ return size;
10513+
10514+ if (!__builtin_constant_p(size))
10515+ check_object_size(from, size, true);
10516+
10517+ ret = ___copy_to_user(to, from, size);
10518 if (unlikely(ret))
10519 ret = copy_to_user_fixup(to, from, size);
10520 return ret;
10521diff --git a/arch/sparc/kernel/Makefile b/arch/sparc/kernel/Makefile
10522index 7cf9c6e..6206648 100644
10523--- a/arch/sparc/kernel/Makefile
10524+++ b/arch/sparc/kernel/Makefile
10525@@ -4,7 +4,7 @@
10526 #
10527
10528 asflags-y := -ansi
10529-ccflags-y := -Werror
10530+#ccflags-y := -Werror
10531
10532 extra-y := head_$(BITS).o
10533
10534diff --git a/arch/sparc/kernel/process_32.c b/arch/sparc/kernel/process_32.c
10535index 50e7b62..79fae35 100644
10536--- a/arch/sparc/kernel/process_32.c
10537+++ b/arch/sparc/kernel/process_32.c
10538@@ -123,14 +123,14 @@ void show_regs(struct pt_regs *r)
10539
10540 printk("PSR: %08lx PC: %08lx NPC: %08lx Y: %08lx %s\n",
10541 r->psr, r->pc, r->npc, r->y, print_tainted());
10542- printk("PC: <%pS>\n", (void *) r->pc);
10543+ printk("PC: <%pA>\n", (void *) r->pc);
10544 printk("%%G: %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
10545 r->u_regs[0], r->u_regs[1], r->u_regs[2], r->u_regs[3],
10546 r->u_regs[4], r->u_regs[5], r->u_regs[6], r->u_regs[7]);
10547 printk("%%O: %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
10548 r->u_regs[8], r->u_regs[9], r->u_regs[10], r->u_regs[11],
10549 r->u_regs[12], r->u_regs[13], r->u_regs[14], r->u_regs[15]);
10550- printk("RPC: <%pS>\n", (void *) r->u_regs[15]);
10551+ printk("RPC: <%pA>\n", (void *) r->u_regs[15]);
10552
10553 printk("%%L: %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
10554 rw->locals[0], rw->locals[1], rw->locals[2], rw->locals[3],
10555@@ -167,7 +167,7 @@ void show_stack(struct task_struct *tsk, unsigned long *_ksp)
10556 rw = (struct reg_window32 *) fp;
10557 pc = rw->ins[7];
10558 printk("[%08lx : ", pc);
10559- printk("%pS ] ", (void *) pc);
10560+ printk("%pA ] ", (void *) pc);
10561 fp = rw->ins[6];
10562 } while (++count < 16);
10563 printk("\n");
10564diff --git a/arch/sparc/kernel/process_64.c b/arch/sparc/kernel/process_64.c
10565index 46a5964..a35c62c 100644
10566--- a/arch/sparc/kernel/process_64.c
10567+++ b/arch/sparc/kernel/process_64.c
10568@@ -161,7 +161,7 @@ static void show_regwindow(struct pt_regs *regs)
10569 printk("i4: %016lx i5: %016lx i6: %016lx i7: %016lx\n",
10570 rwk->ins[4], rwk->ins[5], rwk->ins[6], rwk->ins[7]);
10571 if (regs->tstate & TSTATE_PRIV)
10572- printk("I7: <%pS>\n", (void *) rwk->ins[7]);
10573+ printk("I7: <%pA>\n", (void *) rwk->ins[7]);
10574 }
10575
10576 void show_regs(struct pt_regs *regs)
10577@@ -170,7 +170,7 @@ void show_regs(struct pt_regs *regs)
10578
10579 printk("TSTATE: %016lx TPC: %016lx TNPC: %016lx Y: %08x %s\n", regs->tstate,
10580 regs->tpc, regs->tnpc, regs->y, print_tainted());
10581- printk("TPC: <%pS>\n", (void *) regs->tpc);
10582+ printk("TPC: <%pA>\n", (void *) regs->tpc);
10583 printk("g0: %016lx g1: %016lx g2: %016lx g3: %016lx\n",
10584 regs->u_regs[0], regs->u_regs[1], regs->u_regs[2],
10585 regs->u_regs[3]);
10586@@ -183,7 +183,7 @@ void show_regs(struct pt_regs *regs)
10587 printk("o4: %016lx o5: %016lx sp: %016lx ret_pc: %016lx\n",
10588 regs->u_regs[12], regs->u_regs[13], regs->u_regs[14],
10589 regs->u_regs[15]);
10590- printk("RPC: <%pS>\n", (void *) regs->u_regs[15]);
10591+ printk("RPC: <%pA>\n", (void *) regs->u_regs[15]);
10592 show_regwindow(regs);
10593 show_stack(current, (unsigned long *) regs->u_regs[UREG_FP]);
10594 }
10595@@ -278,7 +278,7 @@ void arch_trigger_all_cpu_backtrace(bool include_self)
10596 ((tp && tp->task) ? tp->task->pid : -1));
10597
10598 if (gp->tstate & TSTATE_PRIV) {
10599- printk(" TPC[%pS] O7[%pS] I7[%pS] RPC[%pS]\n",
10600+ printk(" TPC[%pA] O7[%pA] I7[%pA] RPC[%pA]\n",
10601 (void *) gp->tpc,
10602 (void *) gp->o7,
10603 (void *) gp->i7,
10604diff --git a/arch/sparc/kernel/prom_common.c b/arch/sparc/kernel/prom_common.c
10605index 79cc0d1..ec62734 100644
10606--- a/arch/sparc/kernel/prom_common.c
10607+++ b/arch/sparc/kernel/prom_common.c
10608@@ -144,7 +144,7 @@ static int __init prom_common_nextprop(phandle node, char *prev, char *buf)
10609
10610 unsigned int prom_early_allocated __initdata;
10611
10612-static struct of_pdt_ops prom_sparc_ops __initdata = {
10613+static struct of_pdt_ops prom_sparc_ops __initconst = {
10614 .nextprop = prom_common_nextprop,
10615 .getproplen = prom_getproplen,
10616 .getproperty = prom_getproperty,
10617diff --git a/arch/sparc/kernel/ptrace_64.c b/arch/sparc/kernel/ptrace_64.c
10618index 9ddc492..27a5619 100644
10619--- a/arch/sparc/kernel/ptrace_64.c
10620+++ b/arch/sparc/kernel/ptrace_64.c
10621@@ -1060,6 +1060,10 @@ long arch_ptrace(struct task_struct *child, long request,
10622 return ret;
10623 }
10624
10625+#ifdef CONFIG_GRKERNSEC_SETXID
10626+extern void gr_delayed_cred_worker(void);
10627+#endif
10628+
10629 asmlinkage int syscall_trace_enter(struct pt_regs *regs)
10630 {
10631 int ret = 0;
10632@@ -1070,6 +1074,11 @@ asmlinkage int syscall_trace_enter(struct pt_regs *regs)
10633 if (test_thread_flag(TIF_NOHZ))
10634 user_exit();
10635
10636+#ifdef CONFIG_GRKERNSEC_SETXID
10637+ if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID)))
10638+ gr_delayed_cred_worker();
10639+#endif
10640+
10641 if (test_thread_flag(TIF_SYSCALL_TRACE))
10642 ret = tracehook_report_syscall_entry(regs);
10643
10644@@ -1088,6 +1097,11 @@ asmlinkage void syscall_trace_leave(struct pt_regs *regs)
10645 if (test_thread_flag(TIF_NOHZ))
10646 user_exit();
10647
10648+#ifdef CONFIG_GRKERNSEC_SETXID
10649+ if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID)))
10650+ gr_delayed_cred_worker();
10651+#endif
10652+
10653 audit_syscall_exit(regs);
10654
10655 if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
10656diff --git a/arch/sparc/kernel/smp_64.c b/arch/sparc/kernel/smp_64.c
10657index 61139d9..c1a5f28 100644
10658--- a/arch/sparc/kernel/smp_64.c
10659+++ b/arch/sparc/kernel/smp_64.c
10660@@ -887,7 +887,7 @@ void smp_flush_dcache_page_impl(struct page *page, int cpu)
10661 return;
10662
10663 #ifdef CONFIG_DEBUG_DCFLUSH
10664- atomic_inc(&dcpage_flushes);
10665+ atomic_inc_unchecked(&dcpage_flushes);
10666 #endif
10667
10668 this_cpu = get_cpu();
10669@@ -911,7 +911,7 @@ void smp_flush_dcache_page_impl(struct page *page, int cpu)
10670 xcall_deliver(data0, __pa(pg_addr),
10671 (u64) pg_addr, cpumask_of(cpu));
10672 #ifdef CONFIG_DEBUG_DCFLUSH
10673- atomic_inc(&dcpage_flushes_xcall);
10674+ atomic_inc_unchecked(&dcpage_flushes_xcall);
10675 #endif
10676 }
10677 }
10678@@ -930,7 +930,7 @@ void flush_dcache_page_all(struct mm_struct *mm, struct page *page)
10679 preempt_disable();
10680
10681 #ifdef CONFIG_DEBUG_DCFLUSH
10682- atomic_inc(&dcpage_flushes);
10683+ atomic_inc_unchecked(&dcpage_flushes);
10684 #endif
10685 data0 = 0;
10686 pg_addr = page_address(page);
10687@@ -947,7 +947,7 @@ void flush_dcache_page_all(struct mm_struct *mm, struct page *page)
10688 xcall_deliver(data0, __pa(pg_addr),
10689 (u64) pg_addr, cpu_online_mask);
10690 #ifdef CONFIG_DEBUG_DCFLUSH
10691- atomic_inc(&dcpage_flushes_xcall);
10692+ atomic_inc_unchecked(&dcpage_flushes_xcall);
10693 #endif
10694 }
10695 __local_flush_dcache_page(page);
10696diff --git a/arch/sparc/kernel/sys_sparc_32.c b/arch/sparc/kernel/sys_sparc_32.c
10697index 646988d..b88905f 100644
10698--- a/arch/sparc/kernel/sys_sparc_32.c
10699+++ b/arch/sparc/kernel/sys_sparc_32.c
10700@@ -54,7 +54,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
10701 if (len > TASK_SIZE - PAGE_SIZE)
10702 return -ENOMEM;
10703 if (!addr)
10704- addr = TASK_UNMAPPED_BASE;
10705+ addr = current->mm->mmap_base;
10706
10707 info.flags = 0;
10708 info.length = len;
10709diff --git a/arch/sparc/kernel/sys_sparc_64.c b/arch/sparc/kernel/sys_sparc_64.c
10710index 30e7ddb..266a3b0 100644
10711--- a/arch/sparc/kernel/sys_sparc_64.c
10712+++ b/arch/sparc/kernel/sys_sparc_64.c
10713@@ -89,13 +89,14 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
10714 struct vm_area_struct * vma;
10715 unsigned long task_size = TASK_SIZE;
10716 int do_color_align;
10717+ unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
10718 struct vm_unmapped_area_info info;
10719
10720 if (flags & MAP_FIXED) {
10721 /* We do not accept a shared mapping if it would violate
10722 * cache aliasing constraints.
10723 */
10724- if ((flags & MAP_SHARED) &&
10725+ if ((filp || (flags & MAP_SHARED)) &&
10726 ((addr - (pgoff << PAGE_SHIFT)) & (SHMLBA - 1)))
10727 return -EINVAL;
10728 return addr;
10729@@ -110,6 +111,10 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
10730 if (filp || (flags & MAP_SHARED))
10731 do_color_align = 1;
10732
10733+#ifdef CONFIG_PAX_RANDMMAP
10734+ if (!(mm->pax_flags & MF_PAX_RANDMMAP))
10735+#endif
10736+
10737 if (addr) {
10738 if (do_color_align)
10739 addr = COLOR_ALIGN(addr, pgoff);
10740@@ -117,22 +122,28 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
10741 addr = PAGE_ALIGN(addr);
10742
10743 vma = find_vma(mm, addr);
10744- if (task_size - len >= addr &&
10745- (!vma || addr + len <= vma->vm_start))
10746+ if (task_size - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
10747 return addr;
10748 }
10749
10750 info.flags = 0;
10751 info.length = len;
10752- info.low_limit = TASK_UNMAPPED_BASE;
10753+ info.low_limit = mm->mmap_base;
10754 info.high_limit = min(task_size, VA_EXCLUDE_START);
10755 info.align_mask = do_color_align ? (PAGE_MASK & (SHMLBA - 1)) : 0;
10756 info.align_offset = pgoff << PAGE_SHIFT;
10757+ info.threadstack_offset = offset;
10758 addr = vm_unmapped_area(&info);
10759
10760 if ((addr & ~PAGE_MASK) && task_size > VA_EXCLUDE_END) {
10761 VM_BUG_ON(addr != -ENOMEM);
10762 info.low_limit = VA_EXCLUDE_END;
10763+
10764+#ifdef CONFIG_PAX_RANDMMAP
10765+ if (mm->pax_flags & MF_PAX_RANDMMAP)
10766+ info.low_limit += mm->delta_mmap;
10767+#endif
10768+
10769 info.high_limit = task_size;
10770 addr = vm_unmapped_area(&info);
10771 }
10772@@ -150,6 +161,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
10773 unsigned long task_size = STACK_TOP32;
10774 unsigned long addr = addr0;
10775 int do_color_align;
10776+ unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
10777 struct vm_unmapped_area_info info;
10778
10779 /* This should only ever run for 32-bit processes. */
10780@@ -159,7 +171,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
10781 /* We do not accept a shared mapping if it would violate
10782 * cache aliasing constraints.
10783 */
10784- if ((flags & MAP_SHARED) &&
10785+ if ((filp || (flags & MAP_SHARED)) &&
10786 ((addr - (pgoff << PAGE_SHIFT)) & (SHMLBA - 1)))
10787 return -EINVAL;
10788 return addr;
10789@@ -172,6 +184,10 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
10790 if (filp || (flags & MAP_SHARED))
10791 do_color_align = 1;
10792
10793+#ifdef CONFIG_PAX_RANDMMAP
10794+ if (!(mm->pax_flags & MF_PAX_RANDMMAP))
10795+#endif
10796+
10797 /* requesting a specific address */
10798 if (addr) {
10799 if (do_color_align)
10800@@ -180,8 +196,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
10801 addr = PAGE_ALIGN(addr);
10802
10803 vma = find_vma(mm, addr);
10804- if (task_size - len >= addr &&
10805- (!vma || addr + len <= vma->vm_start))
10806+ if (task_size - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
10807 return addr;
10808 }
10809
10810@@ -191,6 +206,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
10811 info.high_limit = mm->mmap_base;
10812 info.align_mask = do_color_align ? (PAGE_MASK & (SHMLBA - 1)) : 0;
10813 info.align_offset = pgoff << PAGE_SHIFT;
10814+ info.threadstack_offset = offset;
10815 addr = vm_unmapped_area(&info);
10816
10817 /*
10818@@ -203,6 +219,12 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
10819 VM_BUG_ON(addr != -ENOMEM);
10820 info.flags = 0;
10821 info.low_limit = TASK_UNMAPPED_BASE;
10822+
10823+#ifdef CONFIG_PAX_RANDMMAP
10824+ if (mm->pax_flags & MF_PAX_RANDMMAP)
10825+ info.low_limit += mm->delta_mmap;
10826+#endif
10827+
10828 info.high_limit = STACK_TOP32;
10829 addr = vm_unmapped_area(&info);
10830 }
10831@@ -259,10 +281,14 @@ unsigned long get_fb_unmapped_area(struct file *filp, unsigned long orig_addr, u
10832 EXPORT_SYMBOL(get_fb_unmapped_area);
10833
10834 /* Essentially the same as PowerPC. */
10835-static unsigned long mmap_rnd(void)
10836+static unsigned long mmap_rnd(struct mm_struct *mm)
10837 {
10838 unsigned long rnd = 0UL;
10839
10840+#ifdef CONFIG_PAX_RANDMMAP
10841+ if (!(mm->pax_flags & MF_PAX_RANDMMAP))
10842+#endif
10843+
10844 if (current->flags & PF_RANDOMIZE) {
10845 unsigned long val = get_random_int();
10846 if (test_thread_flag(TIF_32BIT))
10847@@ -275,7 +301,7 @@ static unsigned long mmap_rnd(void)
10848
10849 void arch_pick_mmap_layout(struct mm_struct *mm)
10850 {
10851- unsigned long random_factor = mmap_rnd();
10852+ unsigned long random_factor = mmap_rnd(mm);
10853 unsigned long gap;
10854
10855 /*
10856@@ -288,6 +314,12 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
10857 gap == RLIM_INFINITY ||
10858 sysctl_legacy_va_layout) {
10859 mm->mmap_base = TASK_UNMAPPED_BASE + random_factor;
10860+
10861+#ifdef CONFIG_PAX_RANDMMAP
10862+ if (mm->pax_flags & MF_PAX_RANDMMAP)
10863+ mm->mmap_base += mm->delta_mmap;
10864+#endif
10865+
10866 mm->get_unmapped_area = arch_get_unmapped_area;
10867 } else {
10868 /* We know it's 32-bit */
10869@@ -299,6 +331,12 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
10870 gap = (task_size / 6 * 5);
10871
10872 mm->mmap_base = PAGE_ALIGN(task_size - gap - random_factor);
10873+
10874+#ifdef CONFIG_PAX_RANDMMAP
10875+ if (mm->pax_flags & MF_PAX_RANDMMAP)
10876+ mm->mmap_base -= mm->delta_mmap + mm->delta_stack;
10877+#endif
10878+
10879 mm->get_unmapped_area = arch_get_unmapped_area_topdown;
10880 }
10881 }
10882diff --git a/arch/sparc/kernel/syscalls.S b/arch/sparc/kernel/syscalls.S
10883index bb00089..e0ea580 100644
10884--- a/arch/sparc/kernel/syscalls.S
10885+++ b/arch/sparc/kernel/syscalls.S
10886@@ -62,7 +62,7 @@ sys32_rt_sigreturn:
10887 #endif
10888 .align 32
10889 1: ldx [%g6 + TI_FLAGS], %l5
10890- andcc %l5, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT|_TIF_NOHZ), %g0
10891+ andcc %l5, _TIF_WORK_SYSCALL, %g0
10892 be,pt %icc, rtrap
10893 nop
10894 call syscall_trace_leave
10895@@ -194,7 +194,7 @@ linux_sparc_syscall32:
10896
10897 srl %i3, 0, %o3 ! IEU0
10898 srl %i2, 0, %o2 ! IEU0 Group
10899- andcc %l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT|_TIF_NOHZ), %g0
10900+ andcc %l0, _TIF_WORK_SYSCALL, %g0
10901 bne,pn %icc, linux_syscall_trace32 ! CTI
10902 mov %i0, %l5 ! IEU1
10903 5: call %l7 ! CTI Group brk forced
10904@@ -218,7 +218,7 @@ linux_sparc_syscall:
10905
10906 mov %i3, %o3 ! IEU1
10907 mov %i4, %o4 ! IEU0 Group
10908- andcc %l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT|_TIF_NOHZ), %g0
10909+ andcc %l0, _TIF_WORK_SYSCALL, %g0
10910 bne,pn %icc, linux_syscall_trace ! CTI Group
10911 mov %i0, %l5 ! IEU0
10912 2: call %l7 ! CTI Group brk forced
10913@@ -233,7 +233,7 @@ ret_sys_call:
10914
10915 cmp %o0, -ERESTART_RESTARTBLOCK
10916 bgeu,pn %xcc, 1f
10917- andcc %l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT|_TIF_NOHZ), %g0
10918+ andcc %l0, _TIF_WORK_SYSCALL, %g0
10919 ldx [%sp + PTREGS_OFF + PT_V9_TNPC], %l1 ! pc = npc
10920
10921 2:
10922diff --git a/arch/sparc/kernel/traps_32.c b/arch/sparc/kernel/traps_32.c
10923index 6fd386c5..6907d81 100644
10924--- a/arch/sparc/kernel/traps_32.c
10925+++ b/arch/sparc/kernel/traps_32.c
10926@@ -44,6 +44,8 @@ static void instruction_dump(unsigned long *pc)
10927 #define __SAVE __asm__ __volatile__("save %sp, -0x40, %sp\n\t")
10928 #define __RESTORE __asm__ __volatile__("restore %g0, %g0, %g0\n\t")
10929
10930+extern void gr_handle_kernel_exploit(void);
10931+
10932 void __noreturn die_if_kernel(char *str, struct pt_regs *regs)
10933 {
10934 static int die_counter;
10935@@ -76,15 +78,17 @@ void __noreturn die_if_kernel(char *str, struct pt_regs *regs)
10936 count++ < 30 &&
10937 (((unsigned long) rw) >= PAGE_OFFSET) &&
10938 !(((unsigned long) rw) & 0x7)) {
10939- printk("Caller[%08lx]: %pS\n", rw->ins[7],
10940+ printk("Caller[%08lx]: %pA\n", rw->ins[7],
10941 (void *) rw->ins[7]);
10942 rw = (struct reg_window32 *)rw->ins[6];
10943 }
10944 }
10945 printk("Instruction DUMP:");
10946 instruction_dump ((unsigned long *) regs->pc);
10947- if(regs->psr & PSR_PS)
10948+ if(regs->psr & PSR_PS) {
10949+ gr_handle_kernel_exploit();
10950 do_exit(SIGKILL);
10951+ }
10952 do_exit(SIGSEGV);
10953 }
10954
10955diff --git a/arch/sparc/kernel/traps_64.c b/arch/sparc/kernel/traps_64.c
10956index 0e69974..0c15a6e 100644
10957--- a/arch/sparc/kernel/traps_64.c
10958+++ b/arch/sparc/kernel/traps_64.c
10959@@ -79,7 +79,7 @@ static void dump_tl1_traplog(struct tl1_traplog *p)
10960 i + 1,
10961 p->trapstack[i].tstate, p->trapstack[i].tpc,
10962 p->trapstack[i].tnpc, p->trapstack[i].tt);
10963- printk("TRAPLOG: TPC<%pS>\n", (void *) p->trapstack[i].tpc);
10964+ printk("TRAPLOG: TPC<%pA>\n", (void *) p->trapstack[i].tpc);
10965 }
10966 }
10967
10968@@ -99,6 +99,12 @@ void bad_trap(struct pt_regs *regs, long lvl)
10969
10970 lvl -= 0x100;
10971 if (regs->tstate & TSTATE_PRIV) {
10972+
10973+#ifdef CONFIG_PAX_REFCOUNT
10974+ if (lvl == 6)
10975+ pax_report_refcount_overflow(regs);
10976+#endif
10977+
10978 sprintf(buffer, "Kernel bad sw trap %lx", lvl);
10979 die_if_kernel(buffer, regs);
10980 }
10981@@ -117,11 +123,16 @@ void bad_trap(struct pt_regs *regs, long lvl)
10982 void bad_trap_tl1(struct pt_regs *regs, long lvl)
10983 {
10984 char buffer[32];
10985-
10986+
10987 if (notify_die(DIE_TRAP_TL1, "bad trap tl1", regs,
10988 0, lvl, SIGTRAP) == NOTIFY_STOP)
10989 return;
10990
10991+#ifdef CONFIG_PAX_REFCOUNT
10992+ if (lvl == 6)
10993+ pax_report_refcount_overflow(regs);
10994+#endif
10995+
10996 dump_tl1_traplog((struct tl1_traplog *)(regs + 1));
10997
10998 sprintf (buffer, "Bad trap %lx at tl>0", lvl);
10999@@ -1151,7 +1162,7 @@ static void cheetah_log_errors(struct pt_regs *regs, struct cheetah_err_info *in
11000 regs->tpc, regs->tnpc, regs->u_regs[UREG_I7], regs->tstate);
11001 printk("%s" "ERROR(%d): ",
11002 (recoverable ? KERN_WARNING : KERN_CRIT), smp_processor_id());
11003- printk("TPC<%pS>\n", (void *) regs->tpc);
11004+ printk("TPC<%pA>\n", (void *) regs->tpc);
11005 printk("%s" "ERROR(%d): M_SYND(%lx), E_SYND(%lx)%s%s\n",
11006 (recoverable ? KERN_WARNING : KERN_CRIT), smp_processor_id(),
11007 (afsr & CHAFSR_M_SYNDROME) >> CHAFSR_M_SYNDROME_SHIFT,
11008@@ -1758,7 +1769,7 @@ void cheetah_plus_parity_error(int type, struct pt_regs *regs)
11009 smp_processor_id(),
11010 (type & 0x1) ? 'I' : 'D',
11011 regs->tpc);
11012- printk(KERN_EMERG "TPC<%pS>\n", (void *) regs->tpc);
11013+ printk(KERN_EMERG "TPC<%pA>\n", (void *) regs->tpc);
11014 panic("Irrecoverable Cheetah+ parity error.");
11015 }
11016
11017@@ -1766,7 +1777,7 @@ void cheetah_plus_parity_error(int type, struct pt_regs *regs)
11018 smp_processor_id(),
11019 (type & 0x1) ? 'I' : 'D',
11020 regs->tpc);
11021- printk(KERN_WARNING "TPC<%pS>\n", (void *) regs->tpc);
11022+ printk(KERN_WARNING "TPC<%pA>\n", (void *) regs->tpc);
11023 }
11024
11025 struct sun4v_error_entry {
11026@@ -1839,8 +1850,8 @@ struct sun4v_error_entry {
11027 /*0x38*/u64 reserved_5;
11028 };
11029
11030-static atomic_t sun4v_resum_oflow_cnt = ATOMIC_INIT(0);
11031-static atomic_t sun4v_nonresum_oflow_cnt = ATOMIC_INIT(0);
11032+static atomic_unchecked_t sun4v_resum_oflow_cnt = ATOMIC_INIT(0);
11033+static atomic_unchecked_t sun4v_nonresum_oflow_cnt = ATOMIC_INIT(0);
11034
11035 static const char *sun4v_err_type_to_str(u8 type)
11036 {
11037@@ -1932,7 +1943,7 @@ static void sun4v_report_real_raddr(const char *pfx, struct pt_regs *regs)
11038 }
11039
11040 static void sun4v_log_error(struct pt_regs *regs, struct sun4v_error_entry *ent,
11041- int cpu, const char *pfx, atomic_t *ocnt)
11042+ int cpu, const char *pfx, atomic_unchecked_t *ocnt)
11043 {
11044 u64 *raw_ptr = (u64 *) ent;
11045 u32 attrs;
11046@@ -1990,8 +2001,8 @@ static void sun4v_log_error(struct pt_regs *regs, struct sun4v_error_entry *ent,
11047
11048 show_regs(regs);
11049
11050- if ((cnt = atomic_read(ocnt)) != 0) {
11051- atomic_set(ocnt, 0);
11052+ if ((cnt = atomic_read_unchecked(ocnt)) != 0) {
11053+ atomic_set_unchecked(ocnt, 0);
11054 wmb();
11055 printk("%s: Queue overflowed %d times.\n",
11056 pfx, cnt);
11057@@ -2048,7 +2059,7 @@ out:
11058 */
11059 void sun4v_resum_overflow(struct pt_regs *regs)
11060 {
11061- atomic_inc(&sun4v_resum_oflow_cnt);
11062+ atomic_inc_unchecked(&sun4v_resum_oflow_cnt);
11063 }
11064
11065 /* We run with %pil set to PIL_NORMAL_MAX and PSTATE_IE enabled in %pstate.
11066@@ -2101,7 +2112,7 @@ void sun4v_nonresum_overflow(struct pt_regs *regs)
11067 /* XXX Actually even this can make not that much sense. Perhaps
11068 * XXX we should just pull the plug and panic directly from here?
11069 */
11070- atomic_inc(&sun4v_nonresum_oflow_cnt);
11071+ atomic_inc_unchecked(&sun4v_nonresum_oflow_cnt);
11072 }
11073
11074 static void sun4v_tlb_error(struct pt_regs *regs)
11075@@ -2120,9 +2131,9 @@ void sun4v_itlb_error_report(struct pt_regs *regs, int tl)
11076
11077 printk(KERN_EMERG "SUN4V-ITLB: Error at TPC[%lx], tl %d\n",
11078 regs->tpc, tl);
11079- printk(KERN_EMERG "SUN4V-ITLB: TPC<%pS>\n", (void *) regs->tpc);
11080+ printk(KERN_EMERG "SUN4V-ITLB: TPC<%pA>\n", (void *) regs->tpc);
11081 printk(KERN_EMERG "SUN4V-ITLB: O7[%lx]\n", regs->u_regs[UREG_I7]);
11082- printk(KERN_EMERG "SUN4V-ITLB: O7<%pS>\n",
11083+ printk(KERN_EMERG "SUN4V-ITLB: O7<%pA>\n",
11084 (void *) regs->u_regs[UREG_I7]);
11085 printk(KERN_EMERG "SUN4V-ITLB: vaddr[%lx] ctx[%lx] "
11086 "pte[%lx] error[%lx]\n",
11087@@ -2143,9 +2154,9 @@ void sun4v_dtlb_error_report(struct pt_regs *regs, int tl)
11088
11089 printk(KERN_EMERG "SUN4V-DTLB: Error at TPC[%lx], tl %d\n",
11090 regs->tpc, tl);
11091- printk(KERN_EMERG "SUN4V-DTLB: TPC<%pS>\n", (void *) regs->tpc);
11092+ printk(KERN_EMERG "SUN4V-DTLB: TPC<%pA>\n", (void *) regs->tpc);
11093 printk(KERN_EMERG "SUN4V-DTLB: O7[%lx]\n", regs->u_regs[UREG_I7]);
11094- printk(KERN_EMERG "SUN4V-DTLB: O7<%pS>\n",
11095+ printk(KERN_EMERG "SUN4V-DTLB: O7<%pA>\n",
11096 (void *) regs->u_regs[UREG_I7]);
11097 printk(KERN_EMERG "SUN4V-DTLB: vaddr[%lx] ctx[%lx] "
11098 "pte[%lx] error[%lx]\n",
11099@@ -2362,13 +2373,13 @@ void show_stack(struct task_struct *tsk, unsigned long *_ksp)
11100 fp = (unsigned long)sf->fp + STACK_BIAS;
11101 }
11102
11103- printk(" [%016lx] %pS\n", pc, (void *) pc);
11104+ printk(" [%016lx] %pA\n", pc, (void *) pc);
11105 #ifdef CONFIG_FUNCTION_GRAPH_TRACER
11106 if ((pc + 8UL) == (unsigned long) &return_to_handler) {
11107 int index = tsk->curr_ret_stack;
11108 if (tsk->ret_stack && index >= graph) {
11109 pc = tsk->ret_stack[index - graph].ret;
11110- printk(" [%016lx] %pS\n", pc, (void *) pc);
11111+ printk(" [%016lx] %pA\n", pc, (void *) pc);
11112 graph++;
11113 }
11114 }
11115@@ -2386,6 +2397,8 @@ static inline struct reg_window *kernel_stack_up(struct reg_window *rw)
11116 return (struct reg_window *) (fp + STACK_BIAS);
11117 }
11118
11119+extern void gr_handle_kernel_exploit(void);
11120+
11121 void __noreturn die_if_kernel(char *str, struct pt_regs *regs)
11122 {
11123 static int die_counter;
11124@@ -2414,7 +2427,7 @@ void __noreturn die_if_kernel(char *str, struct pt_regs *regs)
11125 while (rw &&
11126 count++ < 30 &&
11127 kstack_valid(tp, (unsigned long) rw)) {
11128- printk("Caller[%016lx]: %pS\n", rw->ins[7],
11129+ printk("Caller[%016lx]: %pA\n", rw->ins[7],
11130 (void *) rw->ins[7]);
11131
11132 rw = kernel_stack_up(rw);
11133@@ -2429,8 +2442,10 @@ void __noreturn die_if_kernel(char *str, struct pt_regs *regs)
11134 }
11135 if (panic_on_oops)
11136 panic("Fatal exception");
11137- if (regs->tstate & TSTATE_PRIV)
11138+ if (regs->tstate & TSTATE_PRIV) {
11139+ gr_handle_kernel_exploit();
11140 do_exit(SIGKILL);
11141+ }
11142 do_exit(SIGSEGV);
11143 }
11144 EXPORT_SYMBOL(die_if_kernel);
11145diff --git a/arch/sparc/kernel/unaligned_64.c b/arch/sparc/kernel/unaligned_64.c
11146index 62098a8..547ab2c 100644
11147--- a/arch/sparc/kernel/unaligned_64.c
11148+++ b/arch/sparc/kernel/unaligned_64.c
11149@@ -297,7 +297,7 @@ static void log_unaligned(struct pt_regs *regs)
11150 static DEFINE_RATELIMIT_STATE(ratelimit, 5 * HZ, 5);
11151
11152 if (__ratelimit(&ratelimit)) {
11153- printk("Kernel unaligned access at TPC[%lx] %pS\n",
11154+ printk("Kernel unaligned access at TPC[%lx] %pA\n",
11155 regs->tpc, (void *) regs->tpc);
11156 }
11157 }
11158diff --git a/arch/sparc/lib/Makefile b/arch/sparc/lib/Makefile
11159index 3269b02..64f5231 100644
11160--- a/arch/sparc/lib/Makefile
11161+++ b/arch/sparc/lib/Makefile
11162@@ -2,7 +2,7 @@
11163 #
11164
11165 asflags-y := -ansi -DST_DIV0=0x02
11166-ccflags-y := -Werror
11167+#ccflags-y := -Werror
11168
11169 lib-$(CONFIG_SPARC32) += ashrdi3.o
11170 lib-$(CONFIG_SPARC32) += memcpy.o memset.o
11171diff --git a/arch/sparc/lib/atomic_64.S b/arch/sparc/lib/atomic_64.S
11172index 05dac43..76f8ed4 100644
11173--- a/arch/sparc/lib/atomic_64.S
11174+++ b/arch/sparc/lib/atomic_64.S
11175@@ -15,11 +15,22 @@
11176 * a value and does the barriers.
11177 */
11178
11179-#define ATOMIC_OP(op) \
11180-ENTRY(atomic_##op) /* %o0 = increment, %o1 = atomic_ptr */ \
11181+#ifdef CONFIG_PAX_REFCOUNT
11182+#define __REFCOUNT_OP(op) op##cc
11183+#define __OVERFLOW_IOP tvs %icc, 6;
11184+#define __OVERFLOW_XOP tvs %xcc, 6;
11185+#else
11186+#define __REFCOUNT_OP(op) op
11187+#define __OVERFLOW_IOP
11188+#define __OVERFLOW_XOP
11189+#endif
11190+
11191+#define __ATOMIC_OP(op, suffix, asm_op, post_op) \
11192+ENTRY(atomic_##op##suffix) /* %o0 = increment, %o1 = atomic_ptr */ \
11193 BACKOFF_SETUP(%o2); \
11194 1: lduw [%o1], %g1; \
11195- op %g1, %o0, %g7; \
11196+ asm_op %g1, %o0, %g7; \
11197+ post_op \
11198 cas [%o1], %g1, %g7; \
11199 cmp %g1, %g7; \
11200 bne,pn %icc, BACKOFF_LABEL(2f, 1b); \
11201@@ -29,11 +40,15 @@ ENTRY(atomic_##op) /* %o0 = increment, %o1 = atomic_ptr */ \
11202 2: BACKOFF_SPIN(%o2, %o3, 1b); \
11203 ENDPROC(atomic_##op); \
11204
11205-#define ATOMIC_OP_RETURN(op) \
11206-ENTRY(atomic_##op##_return) /* %o0 = increment, %o1 = atomic_ptr */ \
11207+#define ATOMIC_OP(op) __ATOMIC_OP(op, , op, ) \
11208+ __ATOMIC_OP(op, _unchecked, __REFCOUNT_OP(op), __OVERFLOW_IOP)
11209+
11210+#define __ATOMIC_OP_RETURN(op, suffix, asm_op, post_op) \
11211+ENTRY(atomic_##op##_return##suffix) /* %o0 = increment, %o1 = atomic_ptr */\
11212 BACKOFF_SETUP(%o2); \
11213 1: lduw [%o1], %g1; \
11214- op %g1, %o0, %g7; \
11215+ asm_op %g1, %o0, %g7; \
11216+ post_op \
11217 cas [%o1], %g1, %g7; \
11218 cmp %g1, %g7; \
11219 bne,pn %icc, BACKOFF_LABEL(2f, 1b); \
11220@@ -43,6 +58,9 @@ ENTRY(atomic_##op##_return) /* %o0 = increment, %o1 = atomic_ptr */ \
11221 2: BACKOFF_SPIN(%o2, %o3, 1b); \
11222 ENDPROC(atomic_##op##_return);
11223
11224+#define ATOMIC_OP_RETURN(op) __ATOMIC_OP_RETURN(op, , op, ) \
11225+ __ATOMIC_OP_RETURN(op, _unchecked, __REFCOUNT_OP(op), __OVERFLOW_IOP)
11226+
11227 #define ATOMIC_OPS(op) ATOMIC_OP(op) ATOMIC_OP_RETURN(op)
11228
11229 ATOMIC_OPS(add)
11230@@ -50,13 +68,16 @@ ATOMIC_OPS(sub)
11231
11232 #undef ATOMIC_OPS
11233 #undef ATOMIC_OP_RETURN
11234+#undef __ATOMIC_OP_RETURN
11235 #undef ATOMIC_OP
11236+#undef __ATOMIC_OP
11237
11238-#define ATOMIC64_OP(op) \
11239-ENTRY(atomic64_##op) /* %o0 = increment, %o1 = atomic_ptr */ \
11240+#define __ATOMIC64_OP(op, suffix, asm_op, post_op) \
11241+ENTRY(atomic64_##op##suffix) /* %o0 = increment, %o1 = atomic_ptr */ \
11242 BACKOFF_SETUP(%o2); \
11243 1: ldx [%o1], %g1; \
11244- op %g1, %o0, %g7; \
11245+ asm_op %g1, %o0, %g7; \
11246+ post_op \
11247 casx [%o1], %g1, %g7; \
11248 cmp %g1, %g7; \
11249 bne,pn %xcc, BACKOFF_LABEL(2f, 1b); \
11250@@ -66,11 +87,15 @@ ENTRY(atomic64_##op) /* %o0 = increment, %o1 = atomic_ptr */ \
11251 2: BACKOFF_SPIN(%o2, %o3, 1b); \
11252 ENDPROC(atomic64_##op); \
11253
11254-#define ATOMIC64_OP_RETURN(op) \
11255-ENTRY(atomic64_##op##_return) /* %o0 = increment, %o1 = atomic_ptr */ \
11256+#define ATOMIC64_OP(op) __ATOMIC64_OP(op, , op, ) \
11257+ __ATOMIC64_OP(op, _unchecked, __REFCOUNT_OP(op), __OVERFLOW_XOP)
11258+
11259+#define __ATOMIC64_OP_RETURN(op, suffix, asm_op, post_op) \
11260+ENTRY(atomic64_##op##_return##suffix) /* %o0 = increment, %o1 = atomic_ptr */\
11261 BACKOFF_SETUP(%o2); \
11262 1: ldx [%o1], %g1; \
11263- op %g1, %o0, %g7; \
11264+ asm_op %g1, %o0, %g7; \
11265+ post_op \
11266 casx [%o1], %g1, %g7; \
11267 cmp %g1, %g7; \
11268 bne,pn %xcc, BACKOFF_LABEL(2f, 1b); \
11269@@ -80,6 +105,9 @@ ENTRY(atomic64_##op##_return) /* %o0 = increment, %o1 = atomic_ptr */ \
11270 2: BACKOFF_SPIN(%o2, %o3, 1b); \
11271 ENDPROC(atomic64_##op##_return);
11272
11273+#define ATOMIC64_OP_RETURN(op) __ATOMIC64_OP_RETURN(op, , op, ) \
11274+i __ATOMIC64_OP_RETURN(op, _unchecked, __REFCOUNT_OP(op), __OVERFLOW_XOP)
11275+
11276 #define ATOMIC64_OPS(op) ATOMIC64_OP(op) ATOMIC64_OP_RETURN(op)
11277
11278 ATOMIC64_OPS(add)
11279@@ -87,7 +115,12 @@ ATOMIC64_OPS(sub)
11280
11281 #undef ATOMIC64_OPS
11282 #undef ATOMIC64_OP_RETURN
11283+#undef __ATOMIC64_OP_RETURN
11284 #undef ATOMIC64_OP
11285+#undef __ATOMIC64_OP
11286+#undef __OVERFLOW_XOP
11287+#undef __OVERFLOW_IOP
11288+#undef __REFCOUNT_OP
11289
11290 ENTRY(atomic64_dec_if_positive) /* %o0 = atomic_ptr */
11291 BACKOFF_SETUP(%o2)
11292diff --git a/arch/sparc/lib/ksyms.c b/arch/sparc/lib/ksyms.c
11293index 1d649a9..fbc5bfc 100644
11294--- a/arch/sparc/lib/ksyms.c
11295+++ b/arch/sparc/lib/ksyms.c
11296@@ -101,7 +101,9 @@ EXPORT_SYMBOL(__clear_user);
11297 /* Atomic counter implementation. */
11298 #define ATOMIC_OP(op) \
11299 EXPORT_SYMBOL(atomic_##op); \
11300-EXPORT_SYMBOL(atomic64_##op);
11301+EXPORT_SYMBOL(atomic_##op##_unchecked); \
11302+EXPORT_SYMBOL(atomic64_##op); \
11303+EXPORT_SYMBOL(atomic64_##op##_unchecked);
11304
11305 #define ATOMIC_OP_RETURN(op) \
11306 EXPORT_SYMBOL(atomic_##op##_return); \
11307@@ -110,6 +112,8 @@ EXPORT_SYMBOL(atomic64_##op##_return);
11308 #define ATOMIC_OPS(op) ATOMIC_OP(op) ATOMIC_OP_RETURN(op)
11309
11310 ATOMIC_OPS(add)
11311+EXPORT_SYMBOL(atomic_add_ret_unchecked);
11312+EXPORT_SYMBOL(atomic64_add_ret_unchecked);
11313 ATOMIC_OPS(sub)
11314
11315 #undef ATOMIC_OPS
11316diff --git a/arch/sparc/mm/Makefile b/arch/sparc/mm/Makefile
11317index 30c3ecc..736f015 100644
11318--- a/arch/sparc/mm/Makefile
11319+++ b/arch/sparc/mm/Makefile
11320@@ -2,7 +2,7 @@
11321 #
11322
11323 asflags-y := -ansi
11324-ccflags-y := -Werror
11325+#ccflags-y := -Werror
11326
11327 obj-$(CONFIG_SPARC64) += ultra.o tlb.o tsb.o gup.o
11328 obj-y += fault_$(BITS).o
11329diff --git a/arch/sparc/mm/fault_32.c b/arch/sparc/mm/fault_32.c
11330index 70d8171..274c6c0 100644
11331--- a/arch/sparc/mm/fault_32.c
11332+++ b/arch/sparc/mm/fault_32.c
11333@@ -21,6 +21,9 @@
11334 #include <linux/perf_event.h>
11335 #include <linux/interrupt.h>
11336 #include <linux/kdebug.h>
11337+#include <linux/slab.h>
11338+#include <linux/pagemap.h>
11339+#include <linux/compiler.h>
11340
11341 #include <asm/page.h>
11342 #include <asm/pgtable.h>
11343@@ -156,6 +159,277 @@ static unsigned long compute_si_addr(struct pt_regs *regs, int text_fault)
11344 return safe_compute_effective_address(regs, insn);
11345 }
11346
11347+#ifdef CONFIG_PAX_PAGEEXEC
11348+#ifdef CONFIG_PAX_DLRESOLVE
11349+static void pax_emuplt_close(struct vm_area_struct *vma)
11350+{
11351+ vma->vm_mm->call_dl_resolve = 0UL;
11352+}
11353+
11354+static int pax_emuplt_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
11355+{
11356+ unsigned int *kaddr;
11357+
11358+ vmf->page = alloc_page(GFP_HIGHUSER);
11359+ if (!vmf->page)
11360+ return VM_FAULT_OOM;
11361+
11362+ kaddr = kmap(vmf->page);
11363+ memset(kaddr, 0, PAGE_SIZE);
11364+ kaddr[0] = 0x9DE3BFA8U; /* save */
11365+ flush_dcache_page(vmf->page);
11366+ kunmap(vmf->page);
11367+ return VM_FAULT_MAJOR;
11368+}
11369+
11370+static const struct vm_operations_struct pax_vm_ops = {
11371+ .close = pax_emuplt_close,
11372+ .fault = pax_emuplt_fault
11373+};
11374+
11375+static int pax_insert_vma(struct vm_area_struct *vma, unsigned long addr)
11376+{
11377+ int ret;
11378+
11379+ INIT_LIST_HEAD(&vma->anon_vma_chain);
11380+ vma->vm_mm = current->mm;
11381+ vma->vm_start = addr;
11382+ vma->vm_end = addr + PAGE_SIZE;
11383+ vma->vm_flags = VM_READ | VM_EXEC | VM_MAYREAD | VM_MAYEXEC;
11384+ vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
11385+ vma->vm_ops = &pax_vm_ops;
11386+
11387+ ret = insert_vm_struct(current->mm, vma);
11388+ if (ret)
11389+ return ret;
11390+
11391+ ++current->mm->total_vm;
11392+ return 0;
11393+}
11394+#endif
11395+
11396+/*
11397+ * PaX: decide what to do with offenders (regs->pc = fault address)
11398+ *
11399+ * returns 1 when task should be killed
11400+ * 2 when patched PLT trampoline was detected
11401+ * 3 when unpatched PLT trampoline was detected
11402+ */
11403+static int pax_handle_fetch_fault(struct pt_regs *regs)
11404+{
11405+
11406+#ifdef CONFIG_PAX_EMUPLT
11407+ int err;
11408+
11409+ do { /* PaX: patched PLT emulation #1 */
11410+ unsigned int sethi1, sethi2, jmpl;
11411+
11412+ err = get_user(sethi1, (unsigned int *)regs->pc);
11413+ err |= get_user(sethi2, (unsigned int *)(regs->pc+4));
11414+ err |= get_user(jmpl, (unsigned int *)(regs->pc+8));
11415+
11416+ if (err)
11417+ break;
11418+
11419+ if ((sethi1 & 0xFFC00000U) == 0x03000000U &&
11420+ (sethi2 & 0xFFC00000U) == 0x03000000U &&
11421+ (jmpl & 0xFFFFE000U) == 0x81C06000U)
11422+ {
11423+ unsigned int addr;
11424+
11425+ regs->u_regs[UREG_G1] = (sethi2 & 0x003FFFFFU) << 10;
11426+ addr = regs->u_regs[UREG_G1];
11427+ addr += (((jmpl | 0xFFFFE000U) ^ 0x00001000U) + 0x00001000U);
11428+ regs->pc = addr;
11429+ regs->npc = addr+4;
11430+ return 2;
11431+ }
11432+ } while (0);
11433+
11434+ do { /* PaX: patched PLT emulation #2 */
11435+ unsigned int ba;
11436+
11437+ err = get_user(ba, (unsigned int *)regs->pc);
11438+
11439+ if (err)
11440+ break;
11441+
11442+ if ((ba & 0xFFC00000U) == 0x30800000U || (ba & 0xFFF80000U) == 0x30480000U) {
11443+ unsigned int addr;
11444+
11445+ if ((ba & 0xFFC00000U) == 0x30800000U)
11446+ addr = regs->pc + ((((ba | 0xFFC00000U) ^ 0x00200000U) + 0x00200000U) << 2);
11447+ else
11448+ addr = regs->pc + ((((ba | 0xFFF80000U) ^ 0x00040000U) + 0x00040000U) << 2);
11449+ regs->pc = addr;
11450+ regs->npc = addr+4;
11451+ return 2;
11452+ }
11453+ } while (0);
11454+
11455+ do { /* PaX: patched PLT emulation #3 */
11456+ unsigned int sethi, bajmpl, nop;
11457+
11458+ err = get_user(sethi, (unsigned int *)regs->pc);
11459+ err |= get_user(bajmpl, (unsigned int *)(regs->pc+4));
11460+ err |= get_user(nop, (unsigned int *)(regs->pc+8));
11461+
11462+ if (err)
11463+ break;
11464+
11465+ if ((sethi & 0xFFC00000U) == 0x03000000U &&
11466+ ((bajmpl & 0xFFFFE000U) == 0x81C06000U || (bajmpl & 0xFFF80000U) == 0x30480000U) &&
11467+ nop == 0x01000000U)
11468+ {
11469+ unsigned int addr;
11470+
11471+ addr = (sethi & 0x003FFFFFU) << 10;
11472+ regs->u_regs[UREG_G1] = addr;
11473+ if ((bajmpl & 0xFFFFE000U) == 0x81C06000U)
11474+ addr += (((bajmpl | 0xFFFFE000U) ^ 0x00001000U) + 0x00001000U);
11475+ else
11476+ addr = regs->pc + ((((bajmpl | 0xFFF80000U) ^ 0x00040000U) + 0x00040000U) << 2);
11477+ regs->pc = addr;
11478+ regs->npc = addr+4;
11479+ return 2;
11480+ }
11481+ } while (0);
11482+
11483+ do { /* PaX: unpatched PLT emulation step 1 */
11484+ unsigned int sethi, ba, nop;
11485+
11486+ err = get_user(sethi, (unsigned int *)regs->pc);
11487+ err |= get_user(ba, (unsigned int *)(regs->pc+4));
11488+ err |= get_user(nop, (unsigned int *)(regs->pc+8));
11489+
11490+ if (err)
11491+ break;
11492+
11493+ if ((sethi & 0xFFC00000U) == 0x03000000U &&
11494+ ((ba & 0xFFC00000U) == 0x30800000U || (ba & 0xFFF80000U) == 0x30680000U) &&
11495+ nop == 0x01000000U)
11496+ {
11497+ unsigned int addr, save, call;
11498+
11499+ if ((ba & 0xFFC00000U) == 0x30800000U)
11500+ addr = regs->pc + 4 + ((((ba | 0xFFC00000U) ^ 0x00200000U) + 0x00200000U) << 2);
11501+ else
11502+ addr = regs->pc + 4 + ((((ba | 0xFFF80000U) ^ 0x00040000U) + 0x00040000U) << 2);
11503+
11504+ err = get_user(save, (unsigned int *)addr);
11505+ err |= get_user(call, (unsigned int *)(addr+4));
11506+ err |= get_user(nop, (unsigned int *)(addr+8));
11507+ if (err)
11508+ break;
11509+
11510+#ifdef CONFIG_PAX_DLRESOLVE
11511+ if (save == 0x9DE3BFA8U &&
11512+ (call & 0xC0000000U) == 0x40000000U &&
11513+ nop == 0x01000000U)
11514+ {
11515+ struct vm_area_struct *vma;
11516+ unsigned long call_dl_resolve;
11517+
11518+ down_read(&current->mm->mmap_sem);
11519+ call_dl_resolve = current->mm->call_dl_resolve;
11520+ up_read(&current->mm->mmap_sem);
11521+ if (likely(call_dl_resolve))
11522+ goto emulate;
11523+
11524+ vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
11525+
11526+ down_write(&current->mm->mmap_sem);
11527+ if (current->mm->call_dl_resolve) {
11528+ call_dl_resolve = current->mm->call_dl_resolve;
11529+ up_write(&current->mm->mmap_sem);
11530+ if (vma)
11531+ kmem_cache_free(vm_area_cachep, vma);
11532+ goto emulate;
11533+ }
11534+
11535+ call_dl_resolve = get_unmapped_area(NULL, 0UL, PAGE_SIZE, 0UL, MAP_PRIVATE);
11536+ if (!vma || (call_dl_resolve & ~PAGE_MASK)) {
11537+ up_write(&current->mm->mmap_sem);
11538+ if (vma)
11539+ kmem_cache_free(vm_area_cachep, vma);
11540+ return 1;
11541+ }
11542+
11543+ if (pax_insert_vma(vma, call_dl_resolve)) {
11544+ up_write(&current->mm->mmap_sem);
11545+ kmem_cache_free(vm_area_cachep, vma);
11546+ return 1;
11547+ }
11548+
11549+ current->mm->call_dl_resolve = call_dl_resolve;
11550+ up_write(&current->mm->mmap_sem);
11551+
11552+emulate:
11553+ regs->u_regs[UREG_G1] = (sethi & 0x003FFFFFU) << 10;
11554+ regs->pc = call_dl_resolve;
11555+ regs->npc = addr+4;
11556+ return 3;
11557+ }
11558+#endif
11559+
11560+ /* PaX: glibc 2.4+ generates sethi/jmpl instead of save/call */
11561+ if ((save & 0xFFC00000U) == 0x05000000U &&
11562+ (call & 0xFFFFE000U) == 0x85C0A000U &&
11563+ nop == 0x01000000U)
11564+ {
11565+ regs->u_regs[UREG_G1] = (sethi & 0x003FFFFFU) << 10;
11566+ regs->u_regs[UREG_G2] = addr + 4;
11567+ addr = (save & 0x003FFFFFU) << 10;
11568+ addr += (((call | 0xFFFFE000U) ^ 0x00001000U) + 0x00001000U);
11569+ regs->pc = addr;
11570+ regs->npc = addr+4;
11571+ return 3;
11572+ }
11573+ }
11574+ } while (0);
11575+
11576+ do { /* PaX: unpatched PLT emulation step 2 */
11577+ unsigned int save, call, nop;
11578+
11579+ err = get_user(save, (unsigned int *)(regs->pc-4));
11580+ err |= get_user(call, (unsigned int *)regs->pc);
11581+ err |= get_user(nop, (unsigned int *)(regs->pc+4));
11582+ if (err)
11583+ break;
11584+
11585+ if (save == 0x9DE3BFA8U &&
11586+ (call & 0xC0000000U) == 0x40000000U &&
11587+ nop == 0x01000000U)
11588+ {
11589+ unsigned int dl_resolve = regs->pc + ((((call | 0xC0000000U) ^ 0x20000000U) + 0x20000000U) << 2);
11590+
11591+ regs->u_regs[UREG_RETPC] = regs->pc;
11592+ regs->pc = dl_resolve;
11593+ regs->npc = dl_resolve+4;
11594+ return 3;
11595+ }
11596+ } while (0);
11597+#endif
11598+
11599+ return 1;
11600+}
11601+
11602+void pax_report_insns(struct pt_regs *regs, void *pc, void *sp)
11603+{
11604+ unsigned long i;
11605+
11606+ printk(KERN_ERR "PAX: bytes at PC: ");
11607+ for (i = 0; i < 8; i++) {
11608+ unsigned int c;
11609+ if (get_user(c, (unsigned int *)pc+i))
11610+ printk(KERN_CONT "???????? ");
11611+ else
11612+ printk(KERN_CONT "%08x ", c);
11613+ }
11614+ printk("\n");
11615+}
11616+#endif
11617+
11618 static noinline void do_fault_siginfo(int code, int sig, struct pt_regs *regs,
11619 int text_fault)
11620 {
11621@@ -226,6 +500,24 @@ good_area:
11622 if (!(vma->vm_flags & VM_WRITE))
11623 goto bad_area;
11624 } else {
11625+
11626+#ifdef CONFIG_PAX_PAGEEXEC
11627+ if ((mm->pax_flags & MF_PAX_PAGEEXEC) && text_fault && !(vma->vm_flags & VM_EXEC)) {
11628+ up_read(&mm->mmap_sem);
11629+ switch (pax_handle_fetch_fault(regs)) {
11630+
11631+#ifdef CONFIG_PAX_EMUPLT
11632+ case 2:
11633+ case 3:
11634+ return;
11635+#endif
11636+
11637+ }
11638+ pax_report_fault(regs, (void *)regs->pc, (void *)regs->u_regs[UREG_FP]);
11639+ do_group_exit(SIGKILL);
11640+ }
11641+#endif
11642+
11643 /* Allow reads even for write-only mappings */
11644 if (!(vma->vm_flags & (VM_READ | VM_EXEC)))
11645 goto bad_area;
11646diff --git a/arch/sparc/mm/fault_64.c b/arch/sparc/mm/fault_64.c
11647index 4798232..f76e3aa 100644
11648--- a/arch/sparc/mm/fault_64.c
11649+++ b/arch/sparc/mm/fault_64.c
11650@@ -22,6 +22,9 @@
11651 #include <linux/kdebug.h>
11652 #include <linux/percpu.h>
11653 #include <linux/context_tracking.h>
11654+#include <linux/slab.h>
11655+#include <linux/pagemap.h>
11656+#include <linux/compiler.h>
11657
11658 #include <asm/page.h>
11659 #include <asm/pgtable.h>
11660@@ -76,7 +79,7 @@ static void __kprobes bad_kernel_pc(struct pt_regs *regs, unsigned long vaddr)
11661 printk(KERN_CRIT "OOPS: Bogus kernel PC [%016lx] in fault handler\n",
11662 regs->tpc);
11663 printk(KERN_CRIT "OOPS: RPC [%016lx]\n", regs->u_regs[15]);
11664- printk("OOPS: RPC <%pS>\n", (void *) regs->u_regs[15]);
11665+ printk("OOPS: RPC <%pA>\n", (void *) regs->u_regs[15]);
11666 printk(KERN_CRIT "OOPS: Fault was to vaddr[%lx]\n", vaddr);
11667 dump_stack();
11668 unhandled_fault(regs->tpc, current, regs);
11669@@ -279,6 +282,466 @@ static void noinline __kprobes bogus_32bit_fault_tpc(struct pt_regs *regs)
11670 show_regs(regs);
11671 }
11672
11673+#ifdef CONFIG_PAX_PAGEEXEC
11674+#ifdef CONFIG_PAX_DLRESOLVE
11675+static void pax_emuplt_close(struct vm_area_struct *vma)
11676+{
11677+ vma->vm_mm->call_dl_resolve = 0UL;
11678+}
11679+
11680+static int pax_emuplt_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
11681+{
11682+ unsigned int *kaddr;
11683+
11684+ vmf->page = alloc_page(GFP_HIGHUSER);
11685+ if (!vmf->page)
11686+ return VM_FAULT_OOM;
11687+
11688+ kaddr = kmap(vmf->page);
11689+ memset(kaddr, 0, PAGE_SIZE);
11690+ kaddr[0] = 0x9DE3BFA8U; /* save */
11691+ flush_dcache_page(vmf->page);
11692+ kunmap(vmf->page);
11693+ return VM_FAULT_MAJOR;
11694+}
11695+
11696+static const struct vm_operations_struct pax_vm_ops = {
11697+ .close = pax_emuplt_close,
11698+ .fault = pax_emuplt_fault
11699+};
11700+
11701+static int pax_insert_vma(struct vm_area_struct *vma, unsigned long addr)
11702+{
11703+ int ret;
11704+
11705+ INIT_LIST_HEAD(&vma->anon_vma_chain);
11706+ vma->vm_mm = current->mm;
11707+ vma->vm_start = addr;
11708+ vma->vm_end = addr + PAGE_SIZE;
11709+ vma->vm_flags = VM_READ | VM_EXEC | VM_MAYREAD | VM_MAYEXEC;
11710+ vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
11711+ vma->vm_ops = &pax_vm_ops;
11712+
11713+ ret = insert_vm_struct(current->mm, vma);
11714+ if (ret)
11715+ return ret;
11716+
11717+ ++current->mm->total_vm;
11718+ return 0;
11719+}
11720+#endif
11721+
11722+/*
11723+ * PaX: decide what to do with offenders (regs->tpc = fault address)
11724+ *
11725+ * returns 1 when task should be killed
11726+ * 2 when patched PLT trampoline was detected
11727+ * 3 when unpatched PLT trampoline was detected
11728+ */
11729+static int pax_handle_fetch_fault(struct pt_regs *regs)
11730+{
11731+
11732+#ifdef CONFIG_PAX_EMUPLT
11733+ int err;
11734+
11735+ do { /* PaX: patched PLT emulation #1 */
11736+ unsigned int sethi1, sethi2, jmpl;
11737+
11738+ err = get_user(sethi1, (unsigned int *)regs->tpc);
11739+ err |= get_user(sethi2, (unsigned int *)(regs->tpc+4));
11740+ err |= get_user(jmpl, (unsigned int *)(regs->tpc+8));
11741+
11742+ if (err)
11743+ break;
11744+
11745+ if ((sethi1 & 0xFFC00000U) == 0x03000000U &&
11746+ (sethi2 & 0xFFC00000U) == 0x03000000U &&
11747+ (jmpl & 0xFFFFE000U) == 0x81C06000U)
11748+ {
11749+ unsigned long addr;
11750+
11751+ regs->u_regs[UREG_G1] = (sethi2 & 0x003FFFFFU) << 10;
11752+ addr = regs->u_regs[UREG_G1];
11753+ addr += (((jmpl | 0xFFFFFFFFFFFFE000UL) ^ 0x00001000UL) + 0x00001000UL);
11754+
11755+ if (test_thread_flag(TIF_32BIT))
11756+ addr &= 0xFFFFFFFFUL;
11757+
11758+ regs->tpc = addr;
11759+ regs->tnpc = addr+4;
11760+ return 2;
11761+ }
11762+ } while (0);
11763+
11764+ do { /* PaX: patched PLT emulation #2 */
11765+ unsigned int ba;
11766+
11767+ err = get_user(ba, (unsigned int *)regs->tpc);
11768+
11769+ if (err)
11770+ break;
11771+
11772+ if ((ba & 0xFFC00000U) == 0x30800000U || (ba & 0xFFF80000U) == 0x30480000U) {
11773+ unsigned long addr;
11774+
11775+ if ((ba & 0xFFC00000U) == 0x30800000U)
11776+ addr = regs->tpc + ((((ba | 0xFFFFFFFFFFC00000UL) ^ 0x00200000UL) + 0x00200000UL) << 2);
11777+ else
11778+ addr = regs->tpc + ((((ba | 0xFFFFFFFFFFF80000UL) ^ 0x00040000UL) + 0x00040000UL) << 2);
11779+
11780+ if (test_thread_flag(TIF_32BIT))
11781+ addr &= 0xFFFFFFFFUL;
11782+
11783+ regs->tpc = addr;
11784+ regs->tnpc = addr+4;
11785+ return 2;
11786+ }
11787+ } while (0);
11788+
11789+ do { /* PaX: patched PLT emulation #3 */
11790+ unsigned int sethi, bajmpl, nop;
11791+
11792+ err = get_user(sethi, (unsigned int *)regs->tpc);
11793+ err |= get_user(bajmpl, (unsigned int *)(regs->tpc+4));
11794+ err |= get_user(nop, (unsigned int *)(regs->tpc+8));
11795+
11796+ if (err)
11797+ break;
11798+
11799+ if ((sethi & 0xFFC00000U) == 0x03000000U &&
11800+ ((bajmpl & 0xFFFFE000U) == 0x81C06000U || (bajmpl & 0xFFF80000U) == 0x30480000U) &&
11801+ nop == 0x01000000U)
11802+ {
11803+ unsigned long addr;
11804+
11805+ addr = (sethi & 0x003FFFFFU) << 10;
11806+ regs->u_regs[UREG_G1] = addr;
11807+ if ((bajmpl & 0xFFFFE000U) == 0x81C06000U)
11808+ addr += (((bajmpl | 0xFFFFFFFFFFFFE000UL) ^ 0x00001000UL) + 0x00001000UL);
11809+ else
11810+ addr = regs->tpc + ((((bajmpl | 0xFFFFFFFFFFF80000UL) ^ 0x00040000UL) + 0x00040000UL) << 2);
11811+
11812+ if (test_thread_flag(TIF_32BIT))
11813+ addr &= 0xFFFFFFFFUL;
11814+
11815+ regs->tpc = addr;
11816+ regs->tnpc = addr+4;
11817+ return 2;
11818+ }
11819+ } while (0);
11820+
11821+ do { /* PaX: patched PLT emulation #4 */
11822+ unsigned int sethi, mov1, call, mov2;
11823+
11824+ err = get_user(sethi, (unsigned int *)regs->tpc);
11825+ err |= get_user(mov1, (unsigned int *)(regs->tpc+4));
11826+ err |= get_user(call, (unsigned int *)(regs->tpc+8));
11827+ err |= get_user(mov2, (unsigned int *)(regs->tpc+12));
11828+
11829+ if (err)
11830+ break;
11831+
11832+ if ((sethi & 0xFFC00000U) == 0x03000000U &&
11833+ mov1 == 0x8210000FU &&
11834+ (call & 0xC0000000U) == 0x40000000U &&
11835+ mov2 == 0x9E100001U)
11836+ {
11837+ unsigned long addr;
11838+
11839+ regs->u_regs[UREG_G1] = regs->u_regs[UREG_RETPC];
11840+ addr = regs->tpc + 4 + ((((call | 0xFFFFFFFFC0000000UL) ^ 0x20000000UL) + 0x20000000UL) << 2);
11841+
11842+ if (test_thread_flag(TIF_32BIT))
11843+ addr &= 0xFFFFFFFFUL;
11844+
11845+ regs->tpc = addr;
11846+ regs->tnpc = addr+4;
11847+ return 2;
11848+ }
11849+ } while (0);
11850+
11851+ do { /* PaX: patched PLT emulation #5 */
11852+ unsigned int sethi, sethi1, sethi2, or1, or2, sllx, jmpl, nop;
11853+
11854+ err = get_user(sethi, (unsigned int *)regs->tpc);
11855+ err |= get_user(sethi1, (unsigned int *)(regs->tpc+4));
11856+ err |= get_user(sethi2, (unsigned int *)(regs->tpc+8));
11857+ err |= get_user(or1, (unsigned int *)(regs->tpc+12));
11858+ err |= get_user(or2, (unsigned int *)(regs->tpc+16));
11859+ err |= get_user(sllx, (unsigned int *)(regs->tpc+20));
11860+ err |= get_user(jmpl, (unsigned int *)(regs->tpc+24));
11861+ err |= get_user(nop, (unsigned int *)(regs->tpc+28));
11862+
11863+ if (err)
11864+ break;
11865+
11866+ if ((sethi & 0xFFC00000U) == 0x03000000U &&
11867+ (sethi1 & 0xFFC00000U) == 0x03000000U &&
11868+ (sethi2 & 0xFFC00000U) == 0x0B000000U &&
11869+ (or1 & 0xFFFFE000U) == 0x82106000U &&
11870+ (or2 & 0xFFFFE000U) == 0x8A116000U &&
11871+ sllx == 0x83287020U &&
11872+ jmpl == 0x81C04005U &&
11873+ nop == 0x01000000U)
11874+ {
11875+ unsigned long addr;
11876+
11877+ regs->u_regs[UREG_G1] = ((sethi1 & 0x003FFFFFU) << 10) | (or1 & 0x000003FFU);
11878+ regs->u_regs[UREG_G1] <<= 32;
11879+ regs->u_regs[UREG_G5] = ((sethi2 & 0x003FFFFFU) << 10) | (or2 & 0x000003FFU);
11880+ addr = regs->u_regs[UREG_G1] + regs->u_regs[UREG_G5];
11881+ regs->tpc = addr;
11882+ regs->tnpc = addr+4;
11883+ return 2;
11884+ }
11885+ } while (0);
11886+
11887+ do { /* PaX: patched PLT emulation #6 */
11888+ unsigned int sethi, sethi1, sethi2, sllx, or, jmpl, nop;
11889+
11890+ err = get_user(sethi, (unsigned int *)regs->tpc);
11891+ err |= get_user(sethi1, (unsigned int *)(regs->tpc+4));
11892+ err |= get_user(sethi2, (unsigned int *)(regs->tpc+8));
11893+ err |= get_user(sllx, (unsigned int *)(regs->tpc+12));
11894+ err |= get_user(or, (unsigned int *)(regs->tpc+16));
11895+ err |= get_user(jmpl, (unsigned int *)(regs->tpc+20));
11896+ err |= get_user(nop, (unsigned int *)(regs->tpc+24));
11897+
11898+ if (err)
11899+ break;
11900+
11901+ if ((sethi & 0xFFC00000U) == 0x03000000U &&
11902+ (sethi1 & 0xFFC00000U) == 0x03000000U &&
11903+ (sethi2 & 0xFFC00000U) == 0x0B000000U &&
11904+ sllx == 0x83287020U &&
11905+ (or & 0xFFFFE000U) == 0x8A116000U &&
11906+ jmpl == 0x81C04005U &&
11907+ nop == 0x01000000U)
11908+ {
11909+ unsigned long addr;
11910+
11911+ regs->u_regs[UREG_G1] = (sethi1 & 0x003FFFFFU) << 10;
11912+ regs->u_regs[UREG_G1] <<= 32;
11913+ regs->u_regs[UREG_G5] = ((sethi2 & 0x003FFFFFU) << 10) | (or & 0x3FFU);
11914+ addr = regs->u_regs[UREG_G1] + regs->u_regs[UREG_G5];
11915+ regs->tpc = addr;
11916+ regs->tnpc = addr+4;
11917+ return 2;
11918+ }
11919+ } while (0);
11920+
11921+ do { /* PaX: unpatched PLT emulation step 1 */
11922+ unsigned int sethi, ba, nop;
11923+
11924+ err = get_user(sethi, (unsigned int *)regs->tpc);
11925+ err |= get_user(ba, (unsigned int *)(regs->tpc+4));
11926+ err |= get_user(nop, (unsigned int *)(regs->tpc+8));
11927+
11928+ if (err)
11929+ break;
11930+
11931+ if ((sethi & 0xFFC00000U) == 0x03000000U &&
11932+ ((ba & 0xFFC00000U) == 0x30800000U || (ba & 0xFFF80000U) == 0x30680000U) &&
11933+ nop == 0x01000000U)
11934+ {
11935+ unsigned long addr;
11936+ unsigned int save, call;
11937+ unsigned int sethi1, sethi2, or1, or2, sllx, add, jmpl;
11938+
11939+ if ((ba & 0xFFC00000U) == 0x30800000U)
11940+ addr = regs->tpc + 4 + ((((ba | 0xFFFFFFFFFFC00000UL) ^ 0x00200000UL) + 0x00200000UL) << 2);
11941+ else
11942+ addr = regs->tpc + 4 + ((((ba | 0xFFFFFFFFFFF80000UL) ^ 0x00040000UL) + 0x00040000UL) << 2);
11943+
11944+ if (test_thread_flag(TIF_32BIT))
11945+ addr &= 0xFFFFFFFFUL;
11946+
11947+ err = get_user(save, (unsigned int *)addr);
11948+ err |= get_user(call, (unsigned int *)(addr+4));
11949+ err |= get_user(nop, (unsigned int *)(addr+8));
11950+ if (err)
11951+ break;
11952+
11953+#ifdef CONFIG_PAX_DLRESOLVE
11954+ if (save == 0x9DE3BFA8U &&
11955+ (call & 0xC0000000U) == 0x40000000U &&
11956+ nop == 0x01000000U)
11957+ {
11958+ struct vm_area_struct *vma;
11959+ unsigned long call_dl_resolve;
11960+
11961+ down_read(&current->mm->mmap_sem);
11962+ call_dl_resolve = current->mm->call_dl_resolve;
11963+ up_read(&current->mm->mmap_sem);
11964+ if (likely(call_dl_resolve))
11965+ goto emulate;
11966+
11967+ vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
11968+
11969+ down_write(&current->mm->mmap_sem);
11970+ if (current->mm->call_dl_resolve) {
11971+ call_dl_resolve = current->mm->call_dl_resolve;
11972+ up_write(&current->mm->mmap_sem);
11973+ if (vma)
11974+ kmem_cache_free(vm_area_cachep, vma);
11975+ goto emulate;
11976+ }
11977+
11978+ call_dl_resolve = get_unmapped_area(NULL, 0UL, PAGE_SIZE, 0UL, MAP_PRIVATE);
11979+ if (!vma || (call_dl_resolve & ~PAGE_MASK)) {
11980+ up_write(&current->mm->mmap_sem);
11981+ if (vma)
11982+ kmem_cache_free(vm_area_cachep, vma);
11983+ return 1;
11984+ }
11985+
11986+ if (pax_insert_vma(vma, call_dl_resolve)) {
11987+ up_write(&current->mm->mmap_sem);
11988+ kmem_cache_free(vm_area_cachep, vma);
11989+ return 1;
11990+ }
11991+
11992+ current->mm->call_dl_resolve = call_dl_resolve;
11993+ up_write(&current->mm->mmap_sem);
11994+
11995+emulate:
11996+ regs->u_regs[UREG_G1] = (sethi & 0x003FFFFFU) << 10;
11997+ regs->tpc = call_dl_resolve;
11998+ regs->tnpc = addr+4;
11999+ return 3;
12000+ }
12001+#endif
12002+
12003+ /* PaX: glibc 2.4+ generates sethi/jmpl instead of save/call */
12004+ if ((save & 0xFFC00000U) == 0x05000000U &&
12005+ (call & 0xFFFFE000U) == 0x85C0A000U &&
12006+ nop == 0x01000000U)
12007+ {
12008+ regs->u_regs[UREG_G1] = (sethi & 0x003FFFFFU) << 10;
12009+ regs->u_regs[UREG_G2] = addr + 4;
12010+ addr = (save & 0x003FFFFFU) << 10;
12011+ addr += (((call | 0xFFFFFFFFFFFFE000UL) ^ 0x00001000UL) + 0x00001000UL);
12012+
12013+ if (test_thread_flag(TIF_32BIT))
12014+ addr &= 0xFFFFFFFFUL;
12015+
12016+ regs->tpc = addr;
12017+ regs->tnpc = addr+4;
12018+ return 3;
12019+ }
12020+
12021+ /* PaX: 64-bit PLT stub */
12022+ err = get_user(sethi1, (unsigned int *)addr);
12023+ err |= get_user(sethi2, (unsigned int *)(addr+4));
12024+ err |= get_user(or1, (unsigned int *)(addr+8));
12025+ err |= get_user(or2, (unsigned int *)(addr+12));
12026+ err |= get_user(sllx, (unsigned int *)(addr+16));
12027+ err |= get_user(add, (unsigned int *)(addr+20));
12028+ err |= get_user(jmpl, (unsigned int *)(addr+24));
12029+ err |= get_user(nop, (unsigned int *)(addr+28));
12030+ if (err)
12031+ break;
12032+
12033+ if ((sethi1 & 0xFFC00000U) == 0x09000000U &&
12034+ (sethi2 & 0xFFC00000U) == 0x0B000000U &&
12035+ (or1 & 0xFFFFE000U) == 0x88112000U &&
12036+ (or2 & 0xFFFFE000U) == 0x8A116000U &&
12037+ sllx == 0x89293020U &&
12038+ add == 0x8A010005U &&
12039+ jmpl == 0x89C14000U &&
12040+ nop == 0x01000000U)
12041+ {
12042+ regs->u_regs[UREG_G1] = (sethi & 0x003FFFFFU) << 10;
12043+ regs->u_regs[UREG_G4] = ((sethi1 & 0x003FFFFFU) << 10) | (or1 & 0x000003FFU);
12044+ regs->u_regs[UREG_G4] <<= 32;
12045+ regs->u_regs[UREG_G5] = ((sethi2 & 0x003FFFFFU) << 10) | (or2 & 0x000003FFU);
12046+ regs->u_regs[UREG_G5] += regs->u_regs[UREG_G4];
12047+ regs->u_regs[UREG_G4] = addr + 24;
12048+ addr = regs->u_regs[UREG_G5];
12049+ regs->tpc = addr;
12050+ regs->tnpc = addr+4;
12051+ return 3;
12052+ }
12053+ }
12054+ } while (0);
12055+
12056+#ifdef CONFIG_PAX_DLRESOLVE
12057+ do { /* PaX: unpatched PLT emulation step 2 */
12058+ unsigned int save, call, nop;
12059+
12060+ err = get_user(save, (unsigned int *)(regs->tpc-4));
12061+ err |= get_user(call, (unsigned int *)regs->tpc);
12062+ err |= get_user(nop, (unsigned int *)(regs->tpc+4));
12063+ if (err)
12064+ break;
12065+
12066+ if (save == 0x9DE3BFA8U &&
12067+ (call & 0xC0000000U) == 0x40000000U &&
12068+ nop == 0x01000000U)
12069+ {
12070+ unsigned long dl_resolve = regs->tpc + ((((call | 0xFFFFFFFFC0000000UL) ^ 0x20000000UL) + 0x20000000UL) << 2);
12071+
12072+ if (test_thread_flag(TIF_32BIT))
12073+ dl_resolve &= 0xFFFFFFFFUL;
12074+
12075+ regs->u_regs[UREG_RETPC] = regs->tpc;
12076+ regs->tpc = dl_resolve;
12077+ regs->tnpc = dl_resolve+4;
12078+ return 3;
12079+ }
12080+ } while (0);
12081+#endif
12082+
12083+ do { /* PaX: patched PLT emulation #7, must be AFTER the unpatched PLT emulation */
12084+ unsigned int sethi, ba, nop;
12085+
12086+ err = get_user(sethi, (unsigned int *)regs->tpc);
12087+ err |= get_user(ba, (unsigned int *)(regs->tpc+4));
12088+ err |= get_user(nop, (unsigned int *)(regs->tpc+8));
12089+
12090+ if (err)
12091+ break;
12092+
12093+ if ((sethi & 0xFFC00000U) == 0x03000000U &&
12094+ (ba & 0xFFF00000U) == 0x30600000U &&
12095+ nop == 0x01000000U)
12096+ {
12097+ unsigned long addr;
12098+
12099+ addr = (sethi & 0x003FFFFFU) << 10;
12100+ regs->u_regs[UREG_G1] = addr;
12101+ addr = regs->tpc + ((((ba | 0xFFFFFFFFFFF80000UL) ^ 0x00040000UL) + 0x00040000UL) << 2);
12102+
12103+ if (test_thread_flag(TIF_32BIT))
12104+ addr &= 0xFFFFFFFFUL;
12105+
12106+ regs->tpc = addr;
12107+ regs->tnpc = addr+4;
12108+ return 2;
12109+ }
12110+ } while (0);
12111+
12112+#endif
12113+
12114+ return 1;
12115+}
12116+
12117+void pax_report_insns(struct pt_regs *regs, void *pc, void *sp)
12118+{
12119+ unsigned long i;
12120+
12121+ printk(KERN_ERR "PAX: bytes at PC: ");
12122+ for (i = 0; i < 8; i++) {
12123+ unsigned int c;
12124+ if (get_user(c, (unsigned int *)pc+i))
12125+ printk(KERN_CONT "???????? ");
12126+ else
12127+ printk(KERN_CONT "%08x ", c);
12128+ }
12129+ printk("\n");
12130+}
12131+#endif
12132+
12133 asmlinkage void __kprobes do_sparc64_fault(struct pt_regs *regs)
12134 {
12135 enum ctx_state prev_state = exception_enter();
12136@@ -353,6 +816,29 @@ retry:
12137 if (!vma)
12138 goto bad_area;
12139
12140+#ifdef CONFIG_PAX_PAGEEXEC
12141+ /* PaX: detect ITLB misses on non-exec pages */
12142+ if ((mm->pax_flags & MF_PAX_PAGEEXEC) && vma->vm_start <= address &&
12143+ !(vma->vm_flags & VM_EXEC) && (fault_code & FAULT_CODE_ITLB))
12144+ {
12145+ if (address != regs->tpc)
12146+ goto good_area;
12147+
12148+ up_read(&mm->mmap_sem);
12149+ switch (pax_handle_fetch_fault(regs)) {
12150+
12151+#ifdef CONFIG_PAX_EMUPLT
12152+ case 2:
12153+ case 3:
12154+ return;
12155+#endif
12156+
12157+ }
12158+ pax_report_fault(regs, (void *)regs->tpc, (void *)(regs->u_regs[UREG_FP] + STACK_BIAS));
12159+ do_group_exit(SIGKILL);
12160+ }
12161+#endif
12162+
12163 /* Pure DTLB misses do not tell us whether the fault causing
12164 * load/store/atomic was a write or not, it only says that there
12165 * was no match. So in such a case we (carefully) read the
12166diff --git a/arch/sparc/mm/hugetlbpage.c b/arch/sparc/mm/hugetlbpage.c
12167index 4242eab..9ae6360 100644
12168--- a/arch/sparc/mm/hugetlbpage.c
12169+++ b/arch/sparc/mm/hugetlbpage.c
12170@@ -25,8 +25,10 @@ static unsigned long hugetlb_get_unmapped_area_bottomup(struct file *filp,
12171 unsigned long addr,
12172 unsigned long len,
12173 unsigned long pgoff,
12174- unsigned long flags)
12175+ unsigned long flags,
12176+ unsigned long offset)
12177 {
12178+ struct mm_struct *mm = current->mm;
12179 unsigned long task_size = TASK_SIZE;
12180 struct vm_unmapped_area_info info;
12181
12182@@ -35,15 +37,22 @@ static unsigned long hugetlb_get_unmapped_area_bottomup(struct file *filp,
12183
12184 info.flags = 0;
12185 info.length = len;
12186- info.low_limit = TASK_UNMAPPED_BASE;
12187+ info.low_limit = mm->mmap_base;
12188 info.high_limit = min(task_size, VA_EXCLUDE_START);
12189 info.align_mask = PAGE_MASK & ~HPAGE_MASK;
12190 info.align_offset = 0;
12191+ info.threadstack_offset = offset;
12192 addr = vm_unmapped_area(&info);
12193
12194 if ((addr & ~PAGE_MASK) && task_size > VA_EXCLUDE_END) {
12195 VM_BUG_ON(addr != -ENOMEM);
12196 info.low_limit = VA_EXCLUDE_END;
12197+
12198+#ifdef CONFIG_PAX_RANDMMAP
12199+ if (mm->pax_flags & MF_PAX_RANDMMAP)
12200+ info.low_limit += mm->delta_mmap;
12201+#endif
12202+
12203 info.high_limit = task_size;
12204 addr = vm_unmapped_area(&info);
12205 }
12206@@ -55,7 +64,8 @@ static unsigned long
12207 hugetlb_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
12208 const unsigned long len,
12209 const unsigned long pgoff,
12210- const unsigned long flags)
12211+ const unsigned long flags,
12212+ const unsigned long offset)
12213 {
12214 struct mm_struct *mm = current->mm;
12215 unsigned long addr = addr0;
12216@@ -70,6 +80,7 @@ hugetlb_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
12217 info.high_limit = mm->mmap_base;
12218 info.align_mask = PAGE_MASK & ~HPAGE_MASK;
12219 info.align_offset = 0;
12220+ info.threadstack_offset = offset;
12221 addr = vm_unmapped_area(&info);
12222
12223 /*
12224@@ -82,6 +93,12 @@ hugetlb_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
12225 VM_BUG_ON(addr != -ENOMEM);
12226 info.flags = 0;
12227 info.low_limit = TASK_UNMAPPED_BASE;
12228+
12229+#ifdef CONFIG_PAX_RANDMMAP
12230+ if (mm->pax_flags & MF_PAX_RANDMMAP)
12231+ info.low_limit += mm->delta_mmap;
12232+#endif
12233+
12234 info.high_limit = STACK_TOP32;
12235 addr = vm_unmapped_area(&info);
12236 }
12237@@ -96,6 +113,7 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
12238 struct mm_struct *mm = current->mm;
12239 struct vm_area_struct *vma;
12240 unsigned long task_size = TASK_SIZE;
12241+ unsigned long offset = gr_rand_threadstack_offset(mm, file, flags);
12242
12243 if (test_thread_flag(TIF_32BIT))
12244 task_size = STACK_TOP32;
12245@@ -111,19 +129,22 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
12246 return addr;
12247 }
12248
12249+#ifdef CONFIG_PAX_RANDMMAP
12250+ if (!(mm->pax_flags & MF_PAX_RANDMMAP))
12251+#endif
12252+
12253 if (addr) {
12254 addr = ALIGN(addr, HPAGE_SIZE);
12255 vma = find_vma(mm, addr);
12256- if (task_size - len >= addr &&
12257- (!vma || addr + len <= vma->vm_start))
12258+ if (task_size - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
12259 return addr;
12260 }
12261 if (mm->get_unmapped_area == arch_get_unmapped_area)
12262 return hugetlb_get_unmapped_area_bottomup(file, addr, len,
12263- pgoff, flags);
12264+ pgoff, flags, offset);
12265 else
12266 return hugetlb_get_unmapped_area_topdown(file, addr, len,
12267- pgoff, flags);
12268+ pgoff, flags, offset);
12269 }
12270
12271 pte_t *huge_pte_alloc(struct mm_struct *mm,
12272diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c
12273index 4ca0d6b..e89bca1 100644
12274--- a/arch/sparc/mm/init_64.c
12275+++ b/arch/sparc/mm/init_64.c
12276@@ -186,9 +186,9 @@ unsigned long sparc64_kern_sec_context __read_mostly;
12277 int num_kernel_image_mappings;
12278
12279 #ifdef CONFIG_DEBUG_DCFLUSH
12280-atomic_t dcpage_flushes = ATOMIC_INIT(0);
12281+atomic_unchecked_t dcpage_flushes = ATOMIC_INIT(0);
12282 #ifdef CONFIG_SMP
12283-atomic_t dcpage_flushes_xcall = ATOMIC_INIT(0);
12284+atomic_unchecked_t dcpage_flushes_xcall = ATOMIC_INIT(0);
12285 #endif
12286 #endif
12287
12288@@ -196,7 +196,7 @@ inline void flush_dcache_page_impl(struct page *page)
12289 {
12290 BUG_ON(tlb_type == hypervisor);
12291 #ifdef CONFIG_DEBUG_DCFLUSH
12292- atomic_inc(&dcpage_flushes);
12293+ atomic_inc_unchecked(&dcpage_flushes);
12294 #endif
12295
12296 #ifdef DCACHE_ALIASING_POSSIBLE
12297@@ -468,10 +468,10 @@ void mmu_info(struct seq_file *m)
12298
12299 #ifdef CONFIG_DEBUG_DCFLUSH
12300 seq_printf(m, "DCPageFlushes\t: %d\n",
12301- atomic_read(&dcpage_flushes));
12302+ atomic_read_unchecked(&dcpage_flushes));
12303 #ifdef CONFIG_SMP
12304 seq_printf(m, "DCPageFlushesXC\t: %d\n",
12305- atomic_read(&dcpage_flushes_xcall));
12306+ atomic_read_unchecked(&dcpage_flushes_xcall));
12307 #endif /* CONFIG_SMP */
12308 #endif /* CONFIG_DEBUG_DCFLUSH */
12309 }
12310diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig
12311index 7cca418..53fc030 100644
12312--- a/arch/tile/Kconfig
12313+++ b/arch/tile/Kconfig
12314@@ -192,6 +192,7 @@ source "kernel/Kconfig.hz"
12315
12316 config KEXEC
12317 bool "kexec system call"
12318+ depends on !GRKERNSEC_KMEM
12319 ---help---
12320 kexec is a system call that implements the ability to shutdown your
12321 current kernel, and to start another kernel. It is like a reboot
12322diff --git a/arch/tile/include/asm/atomic_64.h b/arch/tile/include/asm/atomic_64.h
12323index 7b11c5f..755a026 100644
12324--- a/arch/tile/include/asm/atomic_64.h
12325+++ b/arch/tile/include/asm/atomic_64.h
12326@@ -105,6 +105,16 @@ static inline long atomic64_add_unless(atomic64_t *v, long a, long u)
12327
12328 #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
12329
12330+#define atomic64_read_unchecked(v) atomic64_read(v)
12331+#define atomic64_set_unchecked(v, i) atomic64_set((v), (i))
12332+#define atomic64_add_unchecked(a, v) atomic64_add((a), (v))
12333+#define atomic64_add_return_unchecked(a, v) atomic64_add_return((a), (v))
12334+#define atomic64_sub_unchecked(a, v) atomic64_sub((a), (v))
12335+#define atomic64_inc_unchecked(v) atomic64_inc(v)
12336+#define atomic64_inc_return_unchecked(v) atomic64_inc_return(v)
12337+#define atomic64_dec_unchecked(v) atomic64_dec(v)
12338+#define atomic64_cmpxchg_unchecked(v, o, n) atomic64_cmpxchg((v), (o), (n))
12339+
12340 /* Define this to indicate that cmpxchg is an efficient operation. */
12341 #define __HAVE_ARCH_CMPXCHG
12342
12343diff --git a/arch/tile/include/asm/cache.h b/arch/tile/include/asm/cache.h
12344index 6160761..00cac88 100644
12345--- a/arch/tile/include/asm/cache.h
12346+++ b/arch/tile/include/asm/cache.h
12347@@ -15,11 +15,12 @@
12348 #ifndef _ASM_TILE_CACHE_H
12349 #define _ASM_TILE_CACHE_H
12350
12351+#include <linux/const.h>
12352 #include <arch/chip.h>
12353
12354 /* bytes per L1 data cache line */
12355 #define L1_CACHE_SHIFT CHIP_L1D_LOG_LINE_SIZE()
12356-#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
12357+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
12358
12359 /* bytes per L2 cache line */
12360 #define L2_CACHE_SHIFT CHIP_L2_LOG_LINE_SIZE()
12361diff --git a/arch/tile/include/asm/uaccess.h b/arch/tile/include/asm/uaccess.h
12362index f41cb53..31d3ab4 100644
12363--- a/arch/tile/include/asm/uaccess.h
12364+++ b/arch/tile/include/asm/uaccess.h
12365@@ -417,9 +417,9 @@ static inline unsigned long __must_check copy_from_user(void *to,
12366 const void __user *from,
12367 unsigned long n)
12368 {
12369- int sz = __compiletime_object_size(to);
12370+ size_t sz = __compiletime_object_size(to);
12371
12372- if (likely(sz == -1 || sz >= n))
12373+ if (likely(sz == (size_t)-1 || sz >= n))
12374 n = _copy_from_user(to, from, n);
12375 else
12376 copy_from_user_overflow();
12377diff --git a/arch/tile/mm/hugetlbpage.c b/arch/tile/mm/hugetlbpage.c
12378index 8416240..a012fb7 100644
12379--- a/arch/tile/mm/hugetlbpage.c
12380+++ b/arch/tile/mm/hugetlbpage.c
12381@@ -179,6 +179,7 @@ static unsigned long hugetlb_get_unmapped_area_bottomup(struct file *file,
12382 info.high_limit = TASK_SIZE;
12383 info.align_mask = PAGE_MASK & ~huge_page_mask(h);
12384 info.align_offset = 0;
12385+ info.threadstack_offset = 0;
12386 return vm_unmapped_area(&info);
12387 }
12388
12389@@ -196,6 +197,7 @@ static unsigned long hugetlb_get_unmapped_area_topdown(struct file *file,
12390 info.high_limit = current->mm->mmap_base;
12391 info.align_mask = PAGE_MASK & ~huge_page_mask(h);
12392 info.align_offset = 0;
12393+ info.threadstack_offset = 0;
12394 addr = vm_unmapped_area(&info);
12395
12396 /*
12397diff --git a/arch/um/Makefile b/arch/um/Makefile
12398index e4b1a96..16162f8 100644
12399--- a/arch/um/Makefile
12400+++ b/arch/um/Makefile
12401@@ -72,6 +72,10 @@ USER_CFLAGS = $(patsubst $(KERNEL_DEFINES),,$(patsubst -D__KERNEL__,,\
12402 $(patsubst -I%,,$(KBUILD_CFLAGS)))) $(ARCH_INCLUDE) $(MODE_INCLUDE) \
12403 $(filter -I%,$(CFLAGS)) -D_FILE_OFFSET_BITS=64 -idirafter include
12404
12405+ifdef CONSTIFY_PLUGIN
12406+USER_CFLAGS += -fplugin-arg-constify_plugin-no-constify
12407+endif
12408+
12409 #This will adjust *FLAGS accordingly to the platform.
12410 include $(srctree)/$(ARCH_DIR)/Makefile-os-$(OS)
12411
12412diff --git a/arch/um/include/asm/cache.h b/arch/um/include/asm/cache.h
12413index 19e1bdd..3665b77 100644
12414--- a/arch/um/include/asm/cache.h
12415+++ b/arch/um/include/asm/cache.h
12416@@ -1,6 +1,7 @@
12417 #ifndef __UM_CACHE_H
12418 #define __UM_CACHE_H
12419
12420+#include <linux/const.h>
12421
12422 #if defined(CONFIG_UML_X86) && !defined(CONFIG_64BIT)
12423 # define L1_CACHE_SHIFT (CONFIG_X86_L1_CACHE_SHIFT)
12424@@ -12,6 +13,6 @@
12425 # define L1_CACHE_SHIFT 5
12426 #endif
12427
12428-#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
12429+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
12430
12431 #endif
12432diff --git a/arch/um/include/asm/kmap_types.h b/arch/um/include/asm/kmap_types.h
12433index 2e0a6b1..a64d0f5 100644
12434--- a/arch/um/include/asm/kmap_types.h
12435+++ b/arch/um/include/asm/kmap_types.h
12436@@ -8,6 +8,6 @@
12437
12438 /* No more #include "asm/arch/kmap_types.h" ! */
12439
12440-#define KM_TYPE_NR 14
12441+#define KM_TYPE_NR 15
12442
12443 #endif
12444diff --git a/arch/um/include/asm/page.h b/arch/um/include/asm/page.h
12445index 71c5d13..4c7b9f1 100644
12446--- a/arch/um/include/asm/page.h
12447+++ b/arch/um/include/asm/page.h
12448@@ -14,6 +14,9 @@
12449 #define PAGE_SIZE (_AC(1, UL) << PAGE_SHIFT)
12450 #define PAGE_MASK (~(PAGE_SIZE-1))
12451
12452+#define ktla_ktva(addr) (addr)
12453+#define ktva_ktla(addr) (addr)
12454+
12455 #ifndef __ASSEMBLY__
12456
12457 struct page;
12458diff --git a/arch/um/include/asm/pgtable-3level.h b/arch/um/include/asm/pgtable-3level.h
12459index 2b4274e..754fe06 100644
12460--- a/arch/um/include/asm/pgtable-3level.h
12461+++ b/arch/um/include/asm/pgtable-3level.h
12462@@ -58,6 +58,7 @@
12463 #define pud_present(x) (pud_val(x) & _PAGE_PRESENT)
12464 #define pud_populate(mm, pud, pmd) \
12465 set_pud(pud, __pud(_PAGE_TABLE + __pa(pmd)))
12466+#define pud_populate_kernel(mm, pud, pmd) pud_populate((mm), (pud), (pmd))
12467
12468 #ifdef CONFIG_64BIT
12469 #define set_pud(pudptr, pudval) set_64bit((u64 *) (pudptr), pud_val(pudval))
12470diff --git a/arch/um/kernel/process.c b/arch/um/kernel/process.c
12471index f17bca8..48adb87 100644
12472--- a/arch/um/kernel/process.c
12473+++ b/arch/um/kernel/process.c
12474@@ -356,22 +356,6 @@ int singlestepping(void * t)
12475 return 2;
12476 }
12477
12478-/*
12479- * Only x86 and x86_64 have an arch_align_stack().
12480- * All other arches have "#define arch_align_stack(x) (x)"
12481- * in their asm/exec.h
12482- * As this is included in UML from asm-um/system-generic.h,
12483- * we can use it to behave as the subarch does.
12484- */
12485-#ifndef arch_align_stack
12486-unsigned long arch_align_stack(unsigned long sp)
12487-{
12488- if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space)
12489- sp -= get_random_int() % 8192;
12490- return sp & ~0xf;
12491-}
12492-#endif
12493-
12494 unsigned long get_wchan(struct task_struct *p)
12495 {
12496 unsigned long stack_page, sp, ip;
12497diff --git a/arch/unicore32/include/asm/cache.h b/arch/unicore32/include/asm/cache.h
12498index ad8f795..2c7eec6 100644
12499--- a/arch/unicore32/include/asm/cache.h
12500+++ b/arch/unicore32/include/asm/cache.h
12501@@ -12,8 +12,10 @@
12502 #ifndef __UNICORE_CACHE_H__
12503 #define __UNICORE_CACHE_H__
12504
12505-#define L1_CACHE_SHIFT (5)
12506-#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
12507+#include <linux/const.h>
12508+
12509+#define L1_CACHE_SHIFT 5
12510+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
12511
12512 /*
12513 * Memory returned by kmalloc() may be used for DMA, so we must make
12514diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
12515index b7d31ca..9481ec5 100644
12516--- a/arch/x86/Kconfig
12517+++ b/arch/x86/Kconfig
12518@@ -132,7 +132,7 @@ config X86
12519 select RTC_LIB
12520 select HAVE_DEBUG_STACKOVERFLOW
12521 select HAVE_IRQ_EXIT_ON_IRQ_STACK if X86_64
12522- select HAVE_CC_STACKPROTECTOR
12523+ select HAVE_CC_STACKPROTECTOR if X86_64 || !PAX_MEMORY_UDEREF
12524 select GENERIC_CPU_AUTOPROBE
12525 select HAVE_ARCH_AUDITSYSCALL
12526 select ARCH_SUPPORTS_ATOMIC_RMW
12527@@ -266,7 +266,7 @@ config X86_HT
12528
12529 config X86_32_LAZY_GS
12530 def_bool y
12531- depends on X86_32 && !CC_STACKPROTECTOR
12532+ depends on X86_32 && !CC_STACKPROTECTOR && !PAX_MEMORY_UDEREF
12533
12534 config ARCH_HWEIGHT_CFLAGS
12535 string
12536@@ -632,6 +632,7 @@ config SCHED_OMIT_FRAME_POINTER
12537
12538 menuconfig HYPERVISOR_GUEST
12539 bool "Linux guest support"
12540+ depends on !GRKERNSEC_CONFIG_AUTO || GRKERNSEC_CONFIG_VIRT_GUEST || (GRKERNSEC_CONFIG_VIRT_HOST && GRKERNSEC_CONFIG_VIRT_XEN)
12541 ---help---
12542 Say Y here to enable options for running Linux under various hyper-
12543 visors. This option enables basic hypervisor detection and platform
12544@@ -1013,6 +1014,7 @@ config VM86
12545
12546 config X86_16BIT
12547 bool "Enable support for 16-bit segments" if EXPERT
12548+ depends on !GRKERNSEC
12549 default y
12550 ---help---
12551 This option is required by programs like Wine to run 16-bit
12552@@ -1186,6 +1188,7 @@ choice
12553
12554 config NOHIGHMEM
12555 bool "off"
12556+ depends on !(PAX_PAGEEXEC && PAX_ENABLE_PAE)
12557 ---help---
12558 Linux can use up to 64 Gigabytes of physical memory on x86 systems.
12559 However, the address space of 32-bit x86 processors is only 4
12560@@ -1222,6 +1225,7 @@ config NOHIGHMEM
12561
12562 config HIGHMEM4G
12563 bool "4GB"
12564+ depends on !(PAX_PAGEEXEC && PAX_ENABLE_PAE)
12565 ---help---
12566 Select this if you have a 32-bit processor and between 1 and 4
12567 gigabytes of physical RAM.
12568@@ -1274,7 +1278,7 @@ config PAGE_OFFSET
12569 hex
12570 default 0xB0000000 if VMSPLIT_3G_OPT
12571 default 0x80000000 if VMSPLIT_2G
12572- default 0x78000000 if VMSPLIT_2G_OPT
12573+ default 0x70000000 if VMSPLIT_2G_OPT
12574 default 0x40000000 if VMSPLIT_1G
12575 default 0xC0000000
12576 depends on X86_32
12577@@ -1715,6 +1719,7 @@ source kernel/Kconfig.hz
12578
12579 config KEXEC
12580 bool "kexec system call"
12581+ depends on !GRKERNSEC_KMEM
12582 ---help---
12583 kexec is a system call that implements the ability to shutdown your
12584 current kernel, and to start another kernel. It is like a reboot
12585@@ -1900,7 +1905,9 @@ config X86_NEED_RELOCS
12586
12587 config PHYSICAL_ALIGN
12588 hex "Alignment value to which kernel should be aligned"
12589- default "0x200000"
12590+ default "0x1000000"
12591+ range 0x200000 0x1000000 if PAX_KERNEXEC && X86_PAE
12592+ range 0x400000 0x1000000 if PAX_KERNEXEC && !X86_PAE
12593 range 0x2000 0x1000000 if X86_32
12594 range 0x200000 0x1000000 if X86_64
12595 ---help---
12596@@ -1983,6 +1990,7 @@ config COMPAT_VDSO
12597 def_bool n
12598 prompt "Disable the 32-bit vDSO (needed for glibc 2.3.3)"
12599 depends on X86_32 || IA32_EMULATION
12600+ depends on !PAX_PAGEEXEC && !PAX_SEGMEXEC && !PAX_KERNEXEC && !PAX_MEMORY_UDEREF
12601 ---help---
12602 Certain buggy versions of glibc will crash if they are
12603 presented with a 32-bit vDSO that is not mapped at the address
12604diff --git a/arch/x86/Kconfig.cpu b/arch/x86/Kconfig.cpu
12605index 6983314..54ad7e8 100644
12606--- a/arch/x86/Kconfig.cpu
12607+++ b/arch/x86/Kconfig.cpu
12608@@ -319,7 +319,7 @@ config X86_PPRO_FENCE
12609
12610 config X86_F00F_BUG
12611 def_bool y
12612- depends on M586MMX || M586TSC || M586 || M486
12613+ depends on (M586MMX || M586TSC || M586 || M486) && !PAX_KERNEXEC
12614
12615 config X86_INVD_BUG
12616 def_bool y
12617@@ -327,7 +327,7 @@ config X86_INVD_BUG
12618
12619 config X86_ALIGNMENT_16
12620 def_bool y
12621- depends on MWINCHIP3D || MWINCHIPC6 || MCYRIXIII || MELAN || MK6 || M586MMX || M586TSC || M586 || M486 || MVIAC3_2 || MGEODEGX1
12622+ depends on MWINCHIP3D || MWINCHIPC6 || MCYRIXIII || X86_ELAN || MK8 || MK7 || MK6 || MCORE2 || MPENTIUM4 || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || M586TSC || M586 || M486 || MVIAC3_2 || MGEODEGX1
12623
12624 config X86_INTEL_USERCOPY
12625 def_bool y
12626@@ -369,7 +369,7 @@ config X86_CMPXCHG64
12627 # generates cmov.
12628 config X86_CMOV
12629 def_bool y
12630- depends on (MK8 || MK7 || MCORE2 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MVIAC3_2 || MVIAC7 || MCRUSOE || MEFFICEON || X86_64 || MATOM || MGEODE_LX)
12631+ depends on (MK8 || MK7 || MCORE2 || MPSC || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MVIAC3_2 || MVIAC7 || MCRUSOE || MEFFICEON || X86_64 || MATOM || MGEODE_LX)
12632
12633 config X86_MINIMUM_CPU_FAMILY
12634 int
12635diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug
12636index 20028da..88d5946 100644
12637--- a/arch/x86/Kconfig.debug
12638+++ b/arch/x86/Kconfig.debug
12639@@ -93,7 +93,7 @@ config EFI_PGT_DUMP
12640 config DEBUG_RODATA
12641 bool "Write protect kernel read-only data structures"
12642 default y
12643- depends on DEBUG_KERNEL
12644+ depends on DEBUG_KERNEL && BROKEN
12645 ---help---
12646 Mark the kernel read-only data as write-protected in the pagetables,
12647 in order to catch accidental (and incorrect) writes to such const
12648@@ -111,7 +111,7 @@ config DEBUG_RODATA_TEST
12649
12650 config DEBUG_SET_MODULE_RONX
12651 bool "Set loadable kernel module data as NX and text as RO"
12652- depends on MODULES
12653+ depends on MODULES && BROKEN
12654 ---help---
12655 This option helps catch unintended modifications to loadable
12656 kernel module's text and read-only data. It also prevents execution
12657diff --git a/arch/x86/Makefile b/arch/x86/Makefile
12658index 5ba2d9c..41e5bb6 100644
12659--- a/arch/x86/Makefile
12660+++ b/arch/x86/Makefile
12661@@ -65,9 +65,6 @@ ifeq ($(CONFIG_X86_32),y)
12662 # CPU-specific tuning. Anything which can be shared with UML should go here.
12663 include $(srctree)/arch/x86/Makefile_32.cpu
12664 KBUILD_CFLAGS += $(cflags-y)
12665-
12666- # temporary until string.h is fixed
12667- KBUILD_CFLAGS += -ffreestanding
12668 else
12669 BITS := 64
12670 UTS_MACHINE := x86_64
12671@@ -107,6 +104,9 @@ else
12672 KBUILD_CFLAGS += $(call cc-option,-maccumulate-outgoing-args)
12673 endif
12674
12675+# temporary until string.h is fixed
12676+KBUILD_CFLAGS += -ffreestanding
12677+
12678 # Make sure compiler does not have buggy stack-protector support.
12679 ifdef CONFIG_CC_STACKPROTECTOR
12680 cc_has_sp := $(srctree)/scripts/gcc-x86_$(BITS)-has-stack-protector.sh
12681@@ -181,6 +181,7 @@ archheaders:
12682 $(Q)$(MAKE) $(build)=arch/x86/syscalls all
12683
12684 archprepare:
12685+ $(if $(LDFLAGS_BUILD_ID),,$(error $(OLD_LD)))
12686 ifeq ($(CONFIG_KEXEC_FILE),y)
12687 $(Q)$(MAKE) $(build)=arch/x86/purgatory arch/x86/purgatory/kexec-purgatory.c
12688 endif
12689@@ -264,3 +265,9 @@ define archhelp
12690 echo ' FDARGS="..." arguments for the booted kernel'
12691 echo ' FDINITRD=file initrd for the booted kernel'
12692 endef
12693+
12694+define OLD_LD
12695+
12696+*** ${VERSION}.${PATCHLEVEL} PaX kernels no longer build correctly with old versions of binutils.
12697+*** Please upgrade your binutils to 2.18 or newer
12698+endef
12699diff --git a/arch/x86/boot/Makefile b/arch/x86/boot/Makefile
12700index 57bbf2f..b100fce 100644
12701--- a/arch/x86/boot/Makefile
12702+++ b/arch/x86/boot/Makefile
12703@@ -58,6 +58,9 @@ clean-files += cpustr.h
12704 # ---------------------------------------------------------------------------
12705
12706 KBUILD_CFLAGS := $(USERINCLUDE) $(REALMODE_CFLAGS) -D_SETUP
12707+ifdef CONSTIFY_PLUGIN
12708+KBUILD_CFLAGS += -fplugin-arg-constify_plugin-no-constify
12709+endif
12710 KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__
12711 GCOV_PROFILE := n
12712
12713diff --git a/arch/x86/boot/bitops.h b/arch/x86/boot/bitops.h
12714index 878e4b9..20537ab 100644
12715--- a/arch/x86/boot/bitops.h
12716+++ b/arch/x86/boot/bitops.h
12717@@ -26,7 +26,7 @@ static inline int variable_test_bit(int nr, const void *addr)
12718 u8 v;
12719 const u32 *p = (const u32 *)addr;
12720
12721- asm("btl %2,%1; setc %0" : "=qm" (v) : "m" (*p), "Ir" (nr));
12722+ asm volatile("btl %2,%1; setc %0" : "=qm" (v) : "m" (*p), "Ir" (nr));
12723 return v;
12724 }
12725
12726@@ -37,7 +37,7 @@ static inline int variable_test_bit(int nr, const void *addr)
12727
12728 static inline void set_bit(int nr, void *addr)
12729 {
12730- asm("btsl %1,%0" : "+m" (*(u32 *)addr) : "Ir" (nr));
12731+ asm volatile("btsl %1,%0" : "+m" (*(u32 *)addr) : "Ir" (nr));
12732 }
12733
12734 #endif /* BOOT_BITOPS_H */
12735diff --git a/arch/x86/boot/boot.h b/arch/x86/boot/boot.h
12736index bd49ec6..94c7f58 100644
12737--- a/arch/x86/boot/boot.h
12738+++ b/arch/x86/boot/boot.h
12739@@ -84,7 +84,7 @@ static inline void io_delay(void)
12740 static inline u16 ds(void)
12741 {
12742 u16 seg;
12743- asm("movw %%ds,%0" : "=rm" (seg));
12744+ asm volatile("movw %%ds,%0" : "=rm" (seg));
12745 return seg;
12746 }
12747
12748diff --git a/arch/x86/boot/compressed/Makefile b/arch/x86/boot/compressed/Makefile
12749index 0a291cd..9686efc 100644
12750--- a/arch/x86/boot/compressed/Makefile
12751+++ b/arch/x86/boot/compressed/Makefile
12752@@ -30,6 +30,9 @@ KBUILD_CFLAGS += $(cflags-y)
12753 KBUILD_CFLAGS += -mno-mmx -mno-sse
12754 KBUILD_CFLAGS += $(call cc-option,-ffreestanding)
12755 KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
12756+ifdef CONSTIFY_PLUGIN
12757+KBUILD_CFLAGS += -fplugin-arg-constify_plugin-no-constify
12758+endif
12759
12760 KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__
12761 GCOV_PROFILE := n
12762diff --git a/arch/x86/boot/compressed/efi_stub_32.S b/arch/x86/boot/compressed/efi_stub_32.S
12763index a53440e..c3dbf1e 100644
12764--- a/arch/x86/boot/compressed/efi_stub_32.S
12765+++ b/arch/x86/boot/compressed/efi_stub_32.S
12766@@ -46,16 +46,13 @@ ENTRY(efi_call_phys)
12767 * parameter 2, ..., param n. To make things easy, we save the return
12768 * address of efi_call_phys in a global variable.
12769 */
12770- popl %ecx
12771- movl %ecx, saved_return_addr(%edx)
12772- /* get the function pointer into ECX*/
12773- popl %ecx
12774- movl %ecx, efi_rt_function_ptr(%edx)
12775+ popl saved_return_addr(%edx)
12776+ popl efi_rt_function_ptr(%edx)
12777
12778 /*
12779 * 3. Call the physical function.
12780 */
12781- call *%ecx
12782+ call *efi_rt_function_ptr(%edx)
12783
12784 /*
12785 * 4. Balance the stack. And because EAX contain the return value,
12786@@ -67,15 +64,12 @@ ENTRY(efi_call_phys)
12787 1: popl %edx
12788 subl $1b, %edx
12789
12790- movl efi_rt_function_ptr(%edx), %ecx
12791- pushl %ecx
12792+ pushl efi_rt_function_ptr(%edx)
12793
12794 /*
12795 * 10. Push the saved return address onto the stack and return.
12796 */
12797- movl saved_return_addr(%edx), %ecx
12798- pushl %ecx
12799- ret
12800+ jmpl *saved_return_addr(%edx)
12801 ENDPROC(efi_call_phys)
12802 .previous
12803
12804diff --git a/arch/x86/boot/compressed/efi_thunk_64.S b/arch/x86/boot/compressed/efi_thunk_64.S
12805index 630384a..278e788 100644
12806--- a/arch/x86/boot/compressed/efi_thunk_64.S
12807+++ b/arch/x86/boot/compressed/efi_thunk_64.S
12808@@ -189,8 +189,8 @@ efi_gdt64:
12809 .long 0 /* Filled out by user */
12810 .word 0
12811 .quad 0x0000000000000000 /* NULL descriptor */
12812- .quad 0x00af9a000000ffff /* __KERNEL_CS */
12813- .quad 0x00cf92000000ffff /* __KERNEL_DS */
12814+ .quad 0x00af9b000000ffff /* __KERNEL_CS */
12815+ .quad 0x00cf93000000ffff /* __KERNEL_DS */
12816 .quad 0x0080890000000000 /* TS descriptor */
12817 .quad 0x0000000000000000 /* TS continued */
12818 efi_gdt64_end:
12819diff --git a/arch/x86/boot/compressed/head_32.S b/arch/x86/boot/compressed/head_32.S
12820index 1d7fbbc..36ecd58 100644
12821--- a/arch/x86/boot/compressed/head_32.S
12822+++ b/arch/x86/boot/compressed/head_32.S
12823@@ -140,10 +140,10 @@ preferred_addr:
12824 addl %eax, %ebx
12825 notl %eax
12826 andl %eax, %ebx
12827- cmpl $LOAD_PHYSICAL_ADDR, %ebx
12828+ cmpl $____LOAD_PHYSICAL_ADDR, %ebx
12829 jge 1f
12830 #endif
12831- movl $LOAD_PHYSICAL_ADDR, %ebx
12832+ movl $____LOAD_PHYSICAL_ADDR, %ebx
12833 1:
12834
12835 /* Target address to relocate to for decompression */
12836diff --git a/arch/x86/boot/compressed/head_64.S b/arch/x86/boot/compressed/head_64.S
12837index 6b1766c..ad465c9 100644
12838--- a/arch/x86/boot/compressed/head_64.S
12839+++ b/arch/x86/boot/compressed/head_64.S
12840@@ -94,10 +94,10 @@ ENTRY(startup_32)
12841 addl %eax, %ebx
12842 notl %eax
12843 andl %eax, %ebx
12844- cmpl $LOAD_PHYSICAL_ADDR, %ebx
12845+ cmpl $____LOAD_PHYSICAL_ADDR, %ebx
12846 jge 1f
12847 #endif
12848- movl $LOAD_PHYSICAL_ADDR, %ebx
12849+ movl $____LOAD_PHYSICAL_ADDR, %ebx
12850 1:
12851
12852 /* Target address to relocate to for decompression */
12853@@ -322,10 +322,10 @@ preferred_addr:
12854 addq %rax, %rbp
12855 notq %rax
12856 andq %rax, %rbp
12857- cmpq $LOAD_PHYSICAL_ADDR, %rbp
12858+ cmpq $____LOAD_PHYSICAL_ADDR, %rbp
12859 jge 1f
12860 #endif
12861- movq $LOAD_PHYSICAL_ADDR, %rbp
12862+ movq $____LOAD_PHYSICAL_ADDR, %rbp
12863 1:
12864
12865 /* Target address to relocate to for decompression */
12866@@ -434,8 +434,8 @@ gdt:
12867 .long gdt
12868 .word 0
12869 .quad 0x0000000000000000 /* NULL descriptor */
12870- .quad 0x00af9a000000ffff /* __KERNEL_CS */
12871- .quad 0x00cf92000000ffff /* __KERNEL_DS */
12872+ .quad 0x00af9b000000ffff /* __KERNEL_CS */
12873+ .quad 0x00cf93000000ffff /* __KERNEL_DS */
12874 .quad 0x0080890000000000 /* TS descriptor */
12875 .quad 0x0000000000000000 /* TS continued */
12876 gdt_end:
12877diff --git a/arch/x86/boot/compressed/misc.c b/arch/x86/boot/compressed/misc.c
12878index a950864..c710239 100644
12879--- a/arch/x86/boot/compressed/misc.c
12880+++ b/arch/x86/boot/compressed/misc.c
12881@@ -242,7 +242,7 @@ static void handle_relocations(void *output, unsigned long output_len)
12882 * Calculate the delta between where vmlinux was linked to load
12883 * and where it was actually loaded.
12884 */
12885- delta = min_addr - LOAD_PHYSICAL_ADDR;
12886+ delta = min_addr - ____LOAD_PHYSICAL_ADDR;
12887 if (!delta) {
12888 debug_putstr("No relocation needed... ");
12889 return;
12890@@ -324,7 +324,7 @@ static void parse_elf(void *output)
12891 Elf32_Ehdr ehdr;
12892 Elf32_Phdr *phdrs, *phdr;
12893 #endif
12894- void *dest;
12895+ void *dest, *prev;
12896 int i;
12897
12898 memcpy(&ehdr, output, sizeof(ehdr));
12899@@ -351,13 +351,16 @@ static void parse_elf(void *output)
12900 case PT_LOAD:
12901 #ifdef CONFIG_RELOCATABLE
12902 dest = output;
12903- dest += (phdr->p_paddr - LOAD_PHYSICAL_ADDR);
12904+ dest += (phdr->p_paddr - ____LOAD_PHYSICAL_ADDR);
12905 #else
12906 dest = (void *)(phdr->p_paddr);
12907 #endif
12908 memcpy(dest,
12909 output + phdr->p_offset,
12910 phdr->p_filesz);
12911+ if (i)
12912+ memset(prev, 0xff, dest - prev);
12913+ prev = dest + phdr->p_filesz;
12914 break;
12915 default: /* Ignore other PT_* */ break;
12916 }
12917@@ -416,7 +419,7 @@ asmlinkage __visible void *decompress_kernel(void *rmode, memptr heap,
12918 error("Destination address too large");
12919 #endif
12920 #ifndef CONFIG_RELOCATABLE
12921- if ((unsigned long)output != LOAD_PHYSICAL_ADDR)
12922+ if ((unsigned long)output != ____LOAD_PHYSICAL_ADDR)
12923 error("Wrong destination address");
12924 #endif
12925
12926diff --git a/arch/x86/boot/cpucheck.c b/arch/x86/boot/cpucheck.c
12927index 1fd7d57..0f7d096 100644
12928--- a/arch/x86/boot/cpucheck.c
12929+++ b/arch/x86/boot/cpucheck.c
12930@@ -125,9 +125,9 @@ int check_cpu(int *cpu_level_ptr, int *req_level_ptr, u32 **err_flags_ptr)
12931 u32 ecx = MSR_K7_HWCR;
12932 u32 eax, edx;
12933
12934- asm("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx));
12935+ asm volatile("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx));
12936 eax &= ~(1 << 15);
12937- asm("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx));
12938+ asm volatile("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx));
12939
12940 get_cpuflags(); /* Make sure it really did something */
12941 err = check_cpuflags();
12942@@ -140,9 +140,9 @@ int check_cpu(int *cpu_level_ptr, int *req_level_ptr, u32 **err_flags_ptr)
12943 u32 ecx = MSR_VIA_FCR;
12944 u32 eax, edx;
12945
12946- asm("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx));
12947+ asm volatile("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx));
12948 eax |= (1<<1)|(1<<7);
12949- asm("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx));
12950+ asm volatile("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx));
12951
12952 set_bit(X86_FEATURE_CX8, cpu.flags);
12953 err = check_cpuflags();
12954@@ -153,12 +153,12 @@ int check_cpu(int *cpu_level_ptr, int *req_level_ptr, u32 **err_flags_ptr)
12955 u32 eax, edx;
12956 u32 level = 1;
12957
12958- asm("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx));
12959- asm("wrmsr" : : "a" (~0), "d" (edx), "c" (ecx));
12960- asm("cpuid"
12961+ asm volatile("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx));
12962+ asm volatile("wrmsr" : : "a" (~0), "d" (edx), "c" (ecx));
12963+ asm volatile("cpuid"
12964 : "+a" (level), "=d" (cpu.flags[0])
12965 : : "ecx", "ebx");
12966- asm("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx));
12967+ asm volatile("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx));
12968
12969 err = check_cpuflags();
12970 } else if (err == 0x01 &&
12971diff --git a/arch/x86/boot/header.S b/arch/x86/boot/header.S
12972index 16ef025..91e033b 100644
12973--- a/arch/x86/boot/header.S
12974+++ b/arch/x86/boot/header.S
12975@@ -438,10 +438,14 @@ setup_data: .quad 0 # 64-bit physical pointer to
12976 # single linked list of
12977 # struct setup_data
12978
12979-pref_address: .quad LOAD_PHYSICAL_ADDR # preferred load addr
12980+pref_address: .quad ____LOAD_PHYSICAL_ADDR # preferred load addr
12981
12982 #define ZO_INIT_SIZE (ZO__end - ZO_startup_32 + ZO_z_extract_offset)
12983+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
12984+#define VO_INIT_SIZE (VO__end - VO__text - __PAGE_OFFSET - ____LOAD_PHYSICAL_ADDR)
12985+#else
12986 #define VO_INIT_SIZE (VO__end - VO__text)
12987+#endif
12988 #if ZO_INIT_SIZE > VO_INIT_SIZE
12989 #define INIT_SIZE ZO_INIT_SIZE
12990 #else
12991diff --git a/arch/x86/boot/memory.c b/arch/x86/boot/memory.c
12992index db75d07..8e6d0af 100644
12993--- a/arch/x86/boot/memory.c
12994+++ b/arch/x86/boot/memory.c
12995@@ -19,7 +19,7 @@
12996
12997 static int detect_memory_e820(void)
12998 {
12999- int count = 0;
13000+ unsigned int count = 0;
13001 struct biosregs ireg, oreg;
13002 struct e820entry *desc = boot_params.e820_map;
13003 static struct e820entry buf; /* static so it is zeroed */
13004diff --git a/arch/x86/boot/video-vesa.c b/arch/x86/boot/video-vesa.c
13005index ba3e100..6501b8f 100644
13006--- a/arch/x86/boot/video-vesa.c
13007+++ b/arch/x86/boot/video-vesa.c
13008@@ -201,6 +201,7 @@ static void vesa_store_pm_info(void)
13009
13010 boot_params.screen_info.vesapm_seg = oreg.es;
13011 boot_params.screen_info.vesapm_off = oreg.di;
13012+ boot_params.screen_info.vesapm_size = oreg.cx;
13013 }
13014
13015 /*
13016diff --git a/arch/x86/boot/video.c b/arch/x86/boot/video.c
13017index 43eda28..5ab5fdb 100644
13018--- a/arch/x86/boot/video.c
13019+++ b/arch/x86/boot/video.c
13020@@ -96,7 +96,7 @@ static void store_mode_params(void)
13021 static unsigned int get_entry(void)
13022 {
13023 char entry_buf[4];
13024- int i, len = 0;
13025+ unsigned int i, len = 0;
13026 int key;
13027 unsigned int v;
13028
13029diff --git a/arch/x86/crypto/aes-x86_64-asm_64.S b/arch/x86/crypto/aes-x86_64-asm_64.S
13030index 9105655..41779c1 100644
13031--- a/arch/x86/crypto/aes-x86_64-asm_64.S
13032+++ b/arch/x86/crypto/aes-x86_64-asm_64.S
13033@@ -8,6 +8,8 @@
13034 * including this sentence is retained in full.
13035 */
13036
13037+#include <asm/alternative-asm.h>
13038+
13039 .extern crypto_ft_tab
13040 .extern crypto_it_tab
13041 .extern crypto_fl_tab
13042@@ -70,6 +72,8 @@
13043 je B192; \
13044 leaq 32(r9),r9;
13045
13046+#define ret pax_force_retaddr; ret
13047+
13048 #define epilogue(FUNC,r1,r2,r3,r4,r5,r6,r7,r8,r9) \
13049 movq r1,r2; \
13050 movq r3,r4; \
13051diff --git a/arch/x86/crypto/aesni-intel_asm.S b/arch/x86/crypto/aesni-intel_asm.S
13052index 6bd2c6c..368c93e 100644
13053--- a/arch/x86/crypto/aesni-intel_asm.S
13054+++ b/arch/x86/crypto/aesni-intel_asm.S
13055@@ -31,6 +31,7 @@
13056
13057 #include <linux/linkage.h>
13058 #include <asm/inst.h>
13059+#include <asm/alternative-asm.h>
13060
13061 /*
13062 * The following macros are used to move an (un)aligned 16 byte value to/from
13063@@ -217,7 +218,7 @@ enc: .octa 0x2
13064 * num_initial_blocks = b mod 4
13065 * encrypt the initial num_initial_blocks blocks and apply ghash on
13066 * the ciphertext
13067-* %r10, %r11, %r12, %rax, %xmm5, %xmm6, %xmm7, %xmm8, %xmm9 registers
13068+* %r10, %r11, %r15, %rax, %xmm5, %xmm6, %xmm7, %xmm8, %xmm9 registers
13069 * are clobbered
13070 * arg1, %arg2, %arg3, %r14 are used as a pointer only, not modified
13071 */
13072@@ -227,8 +228,8 @@ enc: .octa 0x2
13073 XMM2 XMM3 XMM4 XMMDst TMP6 TMP7 i i_seq operation
13074 MOVADQ SHUF_MASK(%rip), %xmm14
13075 mov arg7, %r10 # %r10 = AAD
13076- mov arg8, %r12 # %r12 = aadLen
13077- mov %r12, %r11
13078+ mov arg8, %r15 # %r15 = aadLen
13079+ mov %r15, %r11
13080 pxor %xmm\i, %xmm\i
13081
13082 _get_AAD_loop\num_initial_blocks\operation:
13083@@ -237,17 +238,17 @@ _get_AAD_loop\num_initial_blocks\operation:
13084 psrldq $4, %xmm\i
13085 pxor \TMP1, %xmm\i
13086 add $4, %r10
13087- sub $4, %r12
13088+ sub $4, %r15
13089 jne _get_AAD_loop\num_initial_blocks\operation
13090
13091 cmp $16, %r11
13092 je _get_AAD_loop2_done\num_initial_blocks\operation
13093
13094- mov $16, %r12
13095+ mov $16, %r15
13096 _get_AAD_loop2\num_initial_blocks\operation:
13097 psrldq $4, %xmm\i
13098- sub $4, %r12
13099- cmp %r11, %r12
13100+ sub $4, %r15
13101+ cmp %r11, %r15
13102 jne _get_AAD_loop2\num_initial_blocks\operation
13103
13104 _get_AAD_loop2_done\num_initial_blocks\operation:
13105@@ -442,7 +443,7 @@ _initial_blocks_done\num_initial_blocks\operation:
13106 * num_initial_blocks = b mod 4
13107 * encrypt the initial num_initial_blocks blocks and apply ghash on
13108 * the ciphertext
13109-* %r10, %r11, %r12, %rax, %xmm5, %xmm6, %xmm7, %xmm8, %xmm9 registers
13110+* %r10, %r11, %r15, %rax, %xmm5, %xmm6, %xmm7, %xmm8, %xmm9 registers
13111 * are clobbered
13112 * arg1, %arg2, %arg3, %r14 are used as a pointer only, not modified
13113 */
13114@@ -452,8 +453,8 @@ _initial_blocks_done\num_initial_blocks\operation:
13115 XMM2 XMM3 XMM4 XMMDst TMP6 TMP7 i i_seq operation
13116 MOVADQ SHUF_MASK(%rip), %xmm14
13117 mov arg7, %r10 # %r10 = AAD
13118- mov arg8, %r12 # %r12 = aadLen
13119- mov %r12, %r11
13120+ mov arg8, %r15 # %r15 = aadLen
13121+ mov %r15, %r11
13122 pxor %xmm\i, %xmm\i
13123 _get_AAD_loop\num_initial_blocks\operation:
13124 movd (%r10), \TMP1
13125@@ -461,15 +462,15 @@ _get_AAD_loop\num_initial_blocks\operation:
13126 psrldq $4, %xmm\i
13127 pxor \TMP1, %xmm\i
13128 add $4, %r10
13129- sub $4, %r12
13130+ sub $4, %r15
13131 jne _get_AAD_loop\num_initial_blocks\operation
13132 cmp $16, %r11
13133 je _get_AAD_loop2_done\num_initial_blocks\operation
13134- mov $16, %r12
13135+ mov $16, %r15
13136 _get_AAD_loop2\num_initial_blocks\operation:
13137 psrldq $4, %xmm\i
13138- sub $4, %r12
13139- cmp %r11, %r12
13140+ sub $4, %r15
13141+ cmp %r11, %r15
13142 jne _get_AAD_loop2\num_initial_blocks\operation
13143 _get_AAD_loop2_done\num_initial_blocks\operation:
13144 PSHUFB_XMM %xmm14, %xmm\i # byte-reflect the AAD data
13145@@ -1280,7 +1281,7 @@ _esb_loop_\@:
13146 *
13147 *****************************************************************************/
13148 ENTRY(aesni_gcm_dec)
13149- push %r12
13150+ push %r15
13151 push %r13
13152 push %r14
13153 mov %rsp, %r14
13154@@ -1290,8 +1291,8 @@ ENTRY(aesni_gcm_dec)
13155 */
13156 sub $VARIABLE_OFFSET, %rsp
13157 and $~63, %rsp # align rsp to 64 bytes
13158- mov %arg6, %r12
13159- movdqu (%r12), %xmm13 # %xmm13 = HashKey
13160+ mov %arg6, %r15
13161+ movdqu (%r15), %xmm13 # %xmm13 = HashKey
13162 movdqa SHUF_MASK(%rip), %xmm2
13163 PSHUFB_XMM %xmm2, %xmm13
13164
13165@@ -1319,10 +1320,10 @@ ENTRY(aesni_gcm_dec)
13166 movdqa %xmm13, HashKey(%rsp) # store HashKey<<1 (mod poly)
13167 mov %arg4, %r13 # save the number of bytes of plaintext/ciphertext
13168 and $-16, %r13 # %r13 = %r13 - (%r13 mod 16)
13169- mov %r13, %r12
13170- and $(3<<4), %r12
13171+ mov %r13, %r15
13172+ and $(3<<4), %r15
13173 jz _initial_num_blocks_is_0_decrypt
13174- cmp $(2<<4), %r12
13175+ cmp $(2<<4), %r15
13176 jb _initial_num_blocks_is_1_decrypt
13177 je _initial_num_blocks_is_2_decrypt
13178 _initial_num_blocks_is_3_decrypt:
13179@@ -1372,16 +1373,16 @@ _zero_cipher_left_decrypt:
13180 sub $16, %r11
13181 add %r13, %r11
13182 movdqu (%arg3,%r11,1), %xmm1 # receive the last <16 byte block
13183- lea SHIFT_MASK+16(%rip), %r12
13184- sub %r13, %r12
13185+ lea SHIFT_MASK+16(%rip), %r15
13186+ sub %r13, %r15
13187 # adjust the shuffle mask pointer to be able to shift 16-%r13 bytes
13188 # (%r13 is the number of bytes in plaintext mod 16)
13189- movdqu (%r12), %xmm2 # get the appropriate shuffle mask
13190+ movdqu (%r15), %xmm2 # get the appropriate shuffle mask
13191 PSHUFB_XMM %xmm2, %xmm1 # right shift 16-%r13 butes
13192
13193 movdqa %xmm1, %xmm2
13194 pxor %xmm1, %xmm0 # Ciphertext XOR E(K, Yn)
13195- movdqu ALL_F-SHIFT_MASK(%r12), %xmm1
13196+ movdqu ALL_F-SHIFT_MASK(%r15), %xmm1
13197 # get the appropriate mask to mask out top 16-%r13 bytes of %xmm0
13198 pand %xmm1, %xmm0 # mask out top 16-%r13 bytes of %xmm0
13199 pand %xmm1, %xmm2
13200@@ -1410,9 +1411,9 @@ _less_than_8_bytes_left_decrypt:
13201 sub $1, %r13
13202 jne _less_than_8_bytes_left_decrypt
13203 _multiple_of_16_bytes_decrypt:
13204- mov arg8, %r12 # %r13 = aadLen (number of bytes)
13205- shl $3, %r12 # convert into number of bits
13206- movd %r12d, %xmm15 # len(A) in %xmm15
13207+ mov arg8, %r15 # %r13 = aadLen (number of bytes)
13208+ shl $3, %r15 # convert into number of bits
13209+ movd %r15d, %xmm15 # len(A) in %xmm15
13210 shl $3, %arg4 # len(C) in bits (*128)
13211 MOVQ_R64_XMM %arg4, %xmm1
13212 pslldq $8, %xmm15 # %xmm15 = len(A)||0x0000000000000000
13213@@ -1451,7 +1452,8 @@ _return_T_done_decrypt:
13214 mov %r14, %rsp
13215 pop %r14
13216 pop %r13
13217- pop %r12
13218+ pop %r15
13219+ pax_force_retaddr
13220 ret
13221 ENDPROC(aesni_gcm_dec)
13222
13223@@ -1540,7 +1542,7 @@ ENDPROC(aesni_gcm_dec)
13224 * poly = x^128 + x^127 + x^126 + x^121 + 1
13225 ***************************************************************************/
13226 ENTRY(aesni_gcm_enc)
13227- push %r12
13228+ push %r15
13229 push %r13
13230 push %r14
13231 mov %rsp, %r14
13232@@ -1550,8 +1552,8 @@ ENTRY(aesni_gcm_enc)
13233 #
13234 sub $VARIABLE_OFFSET, %rsp
13235 and $~63, %rsp
13236- mov %arg6, %r12
13237- movdqu (%r12), %xmm13
13238+ mov %arg6, %r15
13239+ movdqu (%r15), %xmm13
13240 movdqa SHUF_MASK(%rip), %xmm2
13241 PSHUFB_XMM %xmm2, %xmm13
13242
13243@@ -1575,13 +1577,13 @@ ENTRY(aesni_gcm_enc)
13244 movdqa %xmm13, HashKey(%rsp)
13245 mov %arg4, %r13 # %xmm13 holds HashKey<<1 (mod poly)
13246 and $-16, %r13
13247- mov %r13, %r12
13248+ mov %r13, %r15
13249
13250 # Encrypt first few blocks
13251
13252- and $(3<<4), %r12
13253+ and $(3<<4), %r15
13254 jz _initial_num_blocks_is_0_encrypt
13255- cmp $(2<<4), %r12
13256+ cmp $(2<<4), %r15
13257 jb _initial_num_blocks_is_1_encrypt
13258 je _initial_num_blocks_is_2_encrypt
13259 _initial_num_blocks_is_3_encrypt:
13260@@ -1634,14 +1636,14 @@ _zero_cipher_left_encrypt:
13261 sub $16, %r11
13262 add %r13, %r11
13263 movdqu (%arg3,%r11,1), %xmm1 # receive the last <16 byte blocks
13264- lea SHIFT_MASK+16(%rip), %r12
13265- sub %r13, %r12
13266+ lea SHIFT_MASK+16(%rip), %r15
13267+ sub %r13, %r15
13268 # adjust the shuffle mask pointer to be able to shift 16-r13 bytes
13269 # (%r13 is the number of bytes in plaintext mod 16)
13270- movdqu (%r12), %xmm2 # get the appropriate shuffle mask
13271+ movdqu (%r15), %xmm2 # get the appropriate shuffle mask
13272 PSHUFB_XMM %xmm2, %xmm1 # shift right 16-r13 byte
13273 pxor %xmm1, %xmm0 # Plaintext XOR Encrypt(K, Yn)
13274- movdqu ALL_F-SHIFT_MASK(%r12), %xmm1
13275+ movdqu ALL_F-SHIFT_MASK(%r15), %xmm1
13276 # get the appropriate mask to mask out top 16-r13 bytes of xmm0
13277 pand %xmm1, %xmm0 # mask out top 16-r13 bytes of xmm0
13278 movdqa SHUF_MASK(%rip), %xmm10
13279@@ -1674,9 +1676,9 @@ _less_than_8_bytes_left_encrypt:
13280 sub $1, %r13
13281 jne _less_than_8_bytes_left_encrypt
13282 _multiple_of_16_bytes_encrypt:
13283- mov arg8, %r12 # %r12 = addLen (number of bytes)
13284- shl $3, %r12
13285- movd %r12d, %xmm15 # len(A) in %xmm15
13286+ mov arg8, %r15 # %r15 = addLen (number of bytes)
13287+ shl $3, %r15
13288+ movd %r15d, %xmm15 # len(A) in %xmm15
13289 shl $3, %arg4 # len(C) in bits (*128)
13290 MOVQ_R64_XMM %arg4, %xmm1
13291 pslldq $8, %xmm15 # %xmm15 = len(A)||0x0000000000000000
13292@@ -1715,7 +1717,8 @@ _return_T_done_encrypt:
13293 mov %r14, %rsp
13294 pop %r14
13295 pop %r13
13296- pop %r12
13297+ pop %r15
13298+ pax_force_retaddr
13299 ret
13300 ENDPROC(aesni_gcm_enc)
13301
13302@@ -1733,6 +1736,7 @@ _key_expansion_256a:
13303 pxor %xmm1, %xmm0
13304 movaps %xmm0, (TKEYP)
13305 add $0x10, TKEYP
13306+ pax_force_retaddr
13307 ret
13308 ENDPROC(_key_expansion_128)
13309 ENDPROC(_key_expansion_256a)
13310@@ -1759,6 +1763,7 @@ _key_expansion_192a:
13311 shufps $0b01001110, %xmm2, %xmm1
13312 movaps %xmm1, 0x10(TKEYP)
13313 add $0x20, TKEYP
13314+ pax_force_retaddr
13315 ret
13316 ENDPROC(_key_expansion_192a)
13317
13318@@ -1779,6 +1784,7 @@ _key_expansion_192b:
13319
13320 movaps %xmm0, (TKEYP)
13321 add $0x10, TKEYP
13322+ pax_force_retaddr
13323 ret
13324 ENDPROC(_key_expansion_192b)
13325
13326@@ -1792,6 +1798,7 @@ _key_expansion_256b:
13327 pxor %xmm1, %xmm2
13328 movaps %xmm2, (TKEYP)
13329 add $0x10, TKEYP
13330+ pax_force_retaddr
13331 ret
13332 ENDPROC(_key_expansion_256b)
13333
13334@@ -1905,6 +1912,7 @@ ENTRY(aesni_set_key)
13335 #ifndef __x86_64__
13336 popl KEYP
13337 #endif
13338+ pax_force_retaddr
13339 ret
13340 ENDPROC(aesni_set_key)
13341
13342@@ -1927,6 +1935,7 @@ ENTRY(aesni_enc)
13343 popl KLEN
13344 popl KEYP
13345 #endif
13346+ pax_force_retaddr
13347 ret
13348 ENDPROC(aesni_enc)
13349
13350@@ -1985,6 +1994,7 @@ _aesni_enc1:
13351 AESENC KEY STATE
13352 movaps 0x70(TKEYP), KEY
13353 AESENCLAST KEY STATE
13354+ pax_force_retaddr
13355 ret
13356 ENDPROC(_aesni_enc1)
13357
13358@@ -2094,6 +2104,7 @@ _aesni_enc4:
13359 AESENCLAST KEY STATE2
13360 AESENCLAST KEY STATE3
13361 AESENCLAST KEY STATE4
13362+ pax_force_retaddr
13363 ret
13364 ENDPROC(_aesni_enc4)
13365
13366@@ -2117,6 +2128,7 @@ ENTRY(aesni_dec)
13367 popl KLEN
13368 popl KEYP
13369 #endif
13370+ pax_force_retaddr
13371 ret
13372 ENDPROC(aesni_dec)
13373
13374@@ -2175,6 +2187,7 @@ _aesni_dec1:
13375 AESDEC KEY STATE
13376 movaps 0x70(TKEYP), KEY
13377 AESDECLAST KEY STATE
13378+ pax_force_retaddr
13379 ret
13380 ENDPROC(_aesni_dec1)
13381
13382@@ -2284,6 +2297,7 @@ _aesni_dec4:
13383 AESDECLAST KEY STATE2
13384 AESDECLAST KEY STATE3
13385 AESDECLAST KEY STATE4
13386+ pax_force_retaddr
13387 ret
13388 ENDPROC(_aesni_dec4)
13389
13390@@ -2342,6 +2356,7 @@ ENTRY(aesni_ecb_enc)
13391 popl KEYP
13392 popl LEN
13393 #endif
13394+ pax_force_retaddr
13395 ret
13396 ENDPROC(aesni_ecb_enc)
13397
13398@@ -2401,6 +2416,7 @@ ENTRY(aesni_ecb_dec)
13399 popl KEYP
13400 popl LEN
13401 #endif
13402+ pax_force_retaddr
13403 ret
13404 ENDPROC(aesni_ecb_dec)
13405
13406@@ -2443,6 +2459,7 @@ ENTRY(aesni_cbc_enc)
13407 popl LEN
13408 popl IVP
13409 #endif
13410+ pax_force_retaddr
13411 ret
13412 ENDPROC(aesni_cbc_enc)
13413
13414@@ -2534,6 +2551,7 @@ ENTRY(aesni_cbc_dec)
13415 popl LEN
13416 popl IVP
13417 #endif
13418+ pax_force_retaddr
13419 ret
13420 ENDPROC(aesni_cbc_dec)
13421
13422@@ -2561,6 +2579,7 @@ _aesni_inc_init:
13423 mov $1, TCTR_LOW
13424 MOVQ_R64_XMM TCTR_LOW INC
13425 MOVQ_R64_XMM CTR TCTR_LOW
13426+ pax_force_retaddr
13427 ret
13428 ENDPROC(_aesni_inc_init)
13429
13430@@ -2590,6 +2609,7 @@ _aesni_inc:
13431 .Linc_low:
13432 movaps CTR, IV
13433 PSHUFB_XMM BSWAP_MASK IV
13434+ pax_force_retaddr
13435 ret
13436 ENDPROC(_aesni_inc)
13437
13438@@ -2651,6 +2671,7 @@ ENTRY(aesni_ctr_enc)
13439 .Lctr_enc_ret:
13440 movups IV, (IVP)
13441 .Lctr_enc_just_ret:
13442+ pax_force_retaddr
13443 ret
13444 ENDPROC(aesni_ctr_enc)
13445
13446@@ -2777,6 +2798,7 @@ ENTRY(aesni_xts_crypt8)
13447 pxor INC, STATE4
13448 movdqu STATE4, 0x70(OUTP)
13449
13450+ pax_force_retaddr
13451 ret
13452 ENDPROC(aesni_xts_crypt8)
13453
13454diff --git a/arch/x86/crypto/blowfish-x86_64-asm_64.S b/arch/x86/crypto/blowfish-x86_64-asm_64.S
13455index 246c670..466e2d6 100644
13456--- a/arch/x86/crypto/blowfish-x86_64-asm_64.S
13457+++ b/arch/x86/crypto/blowfish-x86_64-asm_64.S
13458@@ -21,6 +21,7 @@
13459 */
13460
13461 #include <linux/linkage.h>
13462+#include <asm/alternative-asm.h>
13463
13464 .file "blowfish-x86_64-asm.S"
13465 .text
13466@@ -149,9 +150,11 @@ ENTRY(__blowfish_enc_blk)
13467 jnz .L__enc_xor;
13468
13469 write_block();
13470+ pax_force_retaddr
13471 ret;
13472 .L__enc_xor:
13473 xor_block();
13474+ pax_force_retaddr
13475 ret;
13476 ENDPROC(__blowfish_enc_blk)
13477
13478@@ -183,6 +186,7 @@ ENTRY(blowfish_dec_blk)
13479
13480 movq %r11, %rbp;
13481
13482+ pax_force_retaddr
13483 ret;
13484 ENDPROC(blowfish_dec_blk)
13485
13486@@ -334,6 +338,7 @@ ENTRY(__blowfish_enc_blk_4way)
13487
13488 popq %rbx;
13489 popq %rbp;
13490+ pax_force_retaddr
13491 ret;
13492
13493 .L__enc_xor4:
13494@@ -341,6 +346,7 @@ ENTRY(__blowfish_enc_blk_4way)
13495
13496 popq %rbx;
13497 popq %rbp;
13498+ pax_force_retaddr
13499 ret;
13500 ENDPROC(__blowfish_enc_blk_4way)
13501
13502@@ -375,5 +381,6 @@ ENTRY(blowfish_dec_blk_4way)
13503 popq %rbx;
13504 popq %rbp;
13505
13506+ pax_force_retaddr
13507 ret;
13508 ENDPROC(blowfish_dec_blk_4way)
13509diff --git a/arch/x86/crypto/camellia-aesni-avx-asm_64.S b/arch/x86/crypto/camellia-aesni-avx-asm_64.S
13510index ce71f92..1dce7ec 100644
13511--- a/arch/x86/crypto/camellia-aesni-avx-asm_64.S
13512+++ b/arch/x86/crypto/camellia-aesni-avx-asm_64.S
13513@@ -16,6 +16,7 @@
13514 */
13515
13516 #include <linux/linkage.h>
13517+#include <asm/alternative-asm.h>
13518
13519 #define CAMELLIA_TABLE_BYTE_LEN 272
13520
13521@@ -191,6 +192,7 @@ roundsm16_x0_x1_x2_x3_x4_x5_x6_x7_y0_y1_y2_y3_y4_y5_y6_y7_cd:
13522 roundsm16(%xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7,
13523 %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14, %xmm15,
13524 %rcx, (%r9));
13525+ pax_force_retaddr
13526 ret;
13527 ENDPROC(roundsm16_x0_x1_x2_x3_x4_x5_x6_x7_y0_y1_y2_y3_y4_y5_y6_y7_cd)
13528
13529@@ -199,6 +201,7 @@ roundsm16_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab:
13530 roundsm16(%xmm4, %xmm5, %xmm6, %xmm7, %xmm0, %xmm1, %xmm2, %xmm3,
13531 %xmm12, %xmm13, %xmm14, %xmm15, %xmm8, %xmm9, %xmm10, %xmm11,
13532 %rax, (%r9));
13533+ pax_force_retaddr
13534 ret;
13535 ENDPROC(roundsm16_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab)
13536
13537@@ -780,6 +783,7 @@ __camellia_enc_blk16:
13538 %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
13539 %xmm15, (key_table)(CTX, %r8, 8), (%rax), 1 * 16(%rax));
13540
13541+ pax_force_retaddr
13542 ret;
13543
13544 .align 8
13545@@ -865,6 +869,7 @@ __camellia_dec_blk16:
13546 %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
13547 %xmm15, (key_table)(CTX), (%rax), 1 * 16(%rax));
13548
13549+ pax_force_retaddr
13550 ret;
13551
13552 .align 8
13553@@ -904,6 +909,7 @@ ENTRY(camellia_ecb_enc_16way)
13554 %xmm15, %xmm14, %xmm13, %xmm12, %xmm11, %xmm10, %xmm9,
13555 %xmm8, %rsi);
13556
13557+ pax_force_retaddr
13558 ret;
13559 ENDPROC(camellia_ecb_enc_16way)
13560
13561@@ -932,6 +938,7 @@ ENTRY(camellia_ecb_dec_16way)
13562 %xmm15, %xmm14, %xmm13, %xmm12, %xmm11, %xmm10, %xmm9,
13563 %xmm8, %rsi);
13564
13565+ pax_force_retaddr
13566 ret;
13567 ENDPROC(camellia_ecb_dec_16way)
13568
13569@@ -981,6 +988,7 @@ ENTRY(camellia_cbc_dec_16way)
13570 %xmm15, %xmm14, %xmm13, %xmm12, %xmm11, %xmm10, %xmm9,
13571 %xmm8, %rsi);
13572
13573+ pax_force_retaddr
13574 ret;
13575 ENDPROC(camellia_cbc_dec_16way)
13576
13577@@ -1092,6 +1100,7 @@ ENTRY(camellia_ctr_16way)
13578 %xmm15, %xmm14, %xmm13, %xmm12, %xmm11, %xmm10, %xmm9,
13579 %xmm8, %rsi);
13580
13581+ pax_force_retaddr
13582 ret;
13583 ENDPROC(camellia_ctr_16way)
13584
13585@@ -1234,6 +1243,7 @@ camellia_xts_crypt_16way:
13586 %xmm15, %xmm14, %xmm13, %xmm12, %xmm11, %xmm10, %xmm9,
13587 %xmm8, %rsi);
13588
13589+ pax_force_retaddr
13590 ret;
13591 ENDPROC(camellia_xts_crypt_16way)
13592
13593diff --git a/arch/x86/crypto/camellia-aesni-avx2-asm_64.S b/arch/x86/crypto/camellia-aesni-avx2-asm_64.S
13594index 0e0b886..5a3123c 100644
13595--- a/arch/x86/crypto/camellia-aesni-avx2-asm_64.S
13596+++ b/arch/x86/crypto/camellia-aesni-avx2-asm_64.S
13597@@ -11,6 +11,7 @@
13598 */
13599
13600 #include <linux/linkage.h>
13601+#include <asm/alternative-asm.h>
13602
13603 #define CAMELLIA_TABLE_BYTE_LEN 272
13604
13605@@ -230,6 +231,7 @@ roundsm32_x0_x1_x2_x3_x4_x5_x6_x7_y0_y1_y2_y3_y4_y5_y6_y7_cd:
13606 roundsm32(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
13607 %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14, %ymm15,
13608 %rcx, (%r9));
13609+ pax_force_retaddr
13610 ret;
13611 ENDPROC(roundsm32_x0_x1_x2_x3_x4_x5_x6_x7_y0_y1_y2_y3_y4_y5_y6_y7_cd)
13612
13613@@ -238,6 +240,7 @@ roundsm32_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab:
13614 roundsm32(%ymm4, %ymm5, %ymm6, %ymm7, %ymm0, %ymm1, %ymm2, %ymm3,
13615 %ymm12, %ymm13, %ymm14, %ymm15, %ymm8, %ymm9, %ymm10, %ymm11,
13616 %rax, (%r9));
13617+ pax_force_retaddr
13618 ret;
13619 ENDPROC(roundsm32_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab)
13620
13621@@ -820,6 +823,7 @@ __camellia_enc_blk32:
13622 %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
13623 %ymm15, (key_table)(CTX, %r8, 8), (%rax), 1 * 32(%rax));
13624
13625+ pax_force_retaddr
13626 ret;
13627
13628 .align 8
13629@@ -905,6 +909,7 @@ __camellia_dec_blk32:
13630 %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
13631 %ymm15, (key_table)(CTX), (%rax), 1 * 32(%rax));
13632
13633+ pax_force_retaddr
13634 ret;
13635
13636 .align 8
13637@@ -948,6 +953,7 @@ ENTRY(camellia_ecb_enc_32way)
13638
13639 vzeroupper;
13640
13641+ pax_force_retaddr
13642 ret;
13643 ENDPROC(camellia_ecb_enc_32way)
13644
13645@@ -980,6 +986,7 @@ ENTRY(camellia_ecb_dec_32way)
13646
13647 vzeroupper;
13648
13649+ pax_force_retaddr
13650 ret;
13651 ENDPROC(camellia_ecb_dec_32way)
13652
13653@@ -1046,6 +1053,7 @@ ENTRY(camellia_cbc_dec_32way)
13654
13655 vzeroupper;
13656
13657+ pax_force_retaddr
13658 ret;
13659 ENDPROC(camellia_cbc_dec_32way)
13660
13661@@ -1184,6 +1192,7 @@ ENTRY(camellia_ctr_32way)
13662
13663 vzeroupper;
13664
13665+ pax_force_retaddr
13666 ret;
13667 ENDPROC(camellia_ctr_32way)
13668
13669@@ -1349,6 +1358,7 @@ camellia_xts_crypt_32way:
13670
13671 vzeroupper;
13672
13673+ pax_force_retaddr
13674 ret;
13675 ENDPROC(camellia_xts_crypt_32way)
13676
13677diff --git a/arch/x86/crypto/camellia-x86_64-asm_64.S b/arch/x86/crypto/camellia-x86_64-asm_64.S
13678index 310319c..db3d7b5 100644
13679--- a/arch/x86/crypto/camellia-x86_64-asm_64.S
13680+++ b/arch/x86/crypto/camellia-x86_64-asm_64.S
13681@@ -21,6 +21,7 @@
13682 */
13683
13684 #include <linux/linkage.h>
13685+#include <asm/alternative-asm.h>
13686
13687 .file "camellia-x86_64-asm_64.S"
13688 .text
13689@@ -228,12 +229,14 @@ ENTRY(__camellia_enc_blk)
13690 enc_outunpack(mov, RT1);
13691
13692 movq RRBP, %rbp;
13693+ pax_force_retaddr
13694 ret;
13695
13696 .L__enc_xor:
13697 enc_outunpack(xor, RT1);
13698
13699 movq RRBP, %rbp;
13700+ pax_force_retaddr
13701 ret;
13702 ENDPROC(__camellia_enc_blk)
13703
13704@@ -272,6 +275,7 @@ ENTRY(camellia_dec_blk)
13705 dec_outunpack();
13706
13707 movq RRBP, %rbp;
13708+ pax_force_retaddr
13709 ret;
13710 ENDPROC(camellia_dec_blk)
13711
13712@@ -463,6 +467,7 @@ ENTRY(__camellia_enc_blk_2way)
13713
13714 movq RRBP, %rbp;
13715 popq %rbx;
13716+ pax_force_retaddr
13717 ret;
13718
13719 .L__enc2_xor:
13720@@ -470,6 +475,7 @@ ENTRY(__camellia_enc_blk_2way)
13721
13722 movq RRBP, %rbp;
13723 popq %rbx;
13724+ pax_force_retaddr
13725 ret;
13726 ENDPROC(__camellia_enc_blk_2way)
13727
13728@@ -510,5 +516,6 @@ ENTRY(camellia_dec_blk_2way)
13729
13730 movq RRBP, %rbp;
13731 movq RXOR, %rbx;
13732+ pax_force_retaddr
13733 ret;
13734 ENDPROC(camellia_dec_blk_2way)
13735diff --git a/arch/x86/crypto/cast5-avx-x86_64-asm_64.S b/arch/x86/crypto/cast5-avx-x86_64-asm_64.S
13736index c35fd5d..2d8c7db 100644
13737--- a/arch/x86/crypto/cast5-avx-x86_64-asm_64.S
13738+++ b/arch/x86/crypto/cast5-avx-x86_64-asm_64.S
13739@@ -24,6 +24,7 @@
13740 */
13741
13742 #include <linux/linkage.h>
13743+#include <asm/alternative-asm.h>
13744
13745 .file "cast5-avx-x86_64-asm_64.S"
13746
13747@@ -281,6 +282,7 @@ __cast5_enc_blk16:
13748 outunpack_blocks(RR3, RL3, RTMP, RX, RKM);
13749 outunpack_blocks(RR4, RL4, RTMP, RX, RKM);
13750
13751+ pax_force_retaddr
13752 ret;
13753 ENDPROC(__cast5_enc_blk16)
13754
13755@@ -352,6 +354,7 @@ __cast5_dec_blk16:
13756 outunpack_blocks(RR3, RL3, RTMP, RX, RKM);
13757 outunpack_blocks(RR4, RL4, RTMP, RX, RKM);
13758
13759+ pax_force_retaddr
13760 ret;
13761
13762 .L__skip_dec:
13763@@ -388,6 +391,7 @@ ENTRY(cast5_ecb_enc_16way)
13764 vmovdqu RR4, (6*4*4)(%r11);
13765 vmovdqu RL4, (7*4*4)(%r11);
13766
13767+ pax_force_retaddr
13768 ret;
13769 ENDPROC(cast5_ecb_enc_16way)
13770
13771@@ -420,6 +424,7 @@ ENTRY(cast5_ecb_dec_16way)
13772 vmovdqu RR4, (6*4*4)(%r11);
13773 vmovdqu RL4, (7*4*4)(%r11);
13774
13775+ pax_force_retaddr
13776 ret;
13777 ENDPROC(cast5_ecb_dec_16way)
13778
13779@@ -430,10 +435,10 @@ ENTRY(cast5_cbc_dec_16way)
13780 * %rdx: src
13781 */
13782
13783- pushq %r12;
13784+ pushq %r14;
13785
13786 movq %rsi, %r11;
13787- movq %rdx, %r12;
13788+ movq %rdx, %r14;
13789
13790 vmovdqu (0*16)(%rdx), RL1;
13791 vmovdqu (1*16)(%rdx), RR1;
13792@@ -447,16 +452,16 @@ ENTRY(cast5_cbc_dec_16way)
13793 call __cast5_dec_blk16;
13794
13795 /* xor with src */
13796- vmovq (%r12), RX;
13797+ vmovq (%r14), RX;
13798 vpshufd $0x4f, RX, RX;
13799 vpxor RX, RR1, RR1;
13800- vpxor 0*16+8(%r12), RL1, RL1;
13801- vpxor 1*16+8(%r12), RR2, RR2;
13802- vpxor 2*16+8(%r12), RL2, RL2;
13803- vpxor 3*16+8(%r12), RR3, RR3;
13804- vpxor 4*16+8(%r12), RL3, RL3;
13805- vpxor 5*16+8(%r12), RR4, RR4;
13806- vpxor 6*16+8(%r12), RL4, RL4;
13807+ vpxor 0*16+8(%r14), RL1, RL1;
13808+ vpxor 1*16+8(%r14), RR2, RR2;
13809+ vpxor 2*16+8(%r14), RL2, RL2;
13810+ vpxor 3*16+8(%r14), RR3, RR3;
13811+ vpxor 4*16+8(%r14), RL3, RL3;
13812+ vpxor 5*16+8(%r14), RR4, RR4;
13813+ vpxor 6*16+8(%r14), RL4, RL4;
13814
13815 vmovdqu RR1, (0*16)(%r11);
13816 vmovdqu RL1, (1*16)(%r11);
13817@@ -467,8 +472,9 @@ ENTRY(cast5_cbc_dec_16way)
13818 vmovdqu RR4, (6*16)(%r11);
13819 vmovdqu RL4, (7*16)(%r11);
13820
13821- popq %r12;
13822+ popq %r14;
13823
13824+ pax_force_retaddr
13825 ret;
13826 ENDPROC(cast5_cbc_dec_16way)
13827
13828@@ -480,10 +486,10 @@ ENTRY(cast5_ctr_16way)
13829 * %rcx: iv (big endian, 64bit)
13830 */
13831
13832- pushq %r12;
13833+ pushq %r14;
13834
13835 movq %rsi, %r11;
13836- movq %rdx, %r12;
13837+ movq %rdx, %r14;
13838
13839 vpcmpeqd RTMP, RTMP, RTMP;
13840 vpsrldq $8, RTMP, RTMP; /* low: -1, high: 0 */
13841@@ -523,14 +529,14 @@ ENTRY(cast5_ctr_16way)
13842 call __cast5_enc_blk16;
13843
13844 /* dst = src ^ iv */
13845- vpxor (0*16)(%r12), RR1, RR1;
13846- vpxor (1*16)(%r12), RL1, RL1;
13847- vpxor (2*16)(%r12), RR2, RR2;
13848- vpxor (3*16)(%r12), RL2, RL2;
13849- vpxor (4*16)(%r12), RR3, RR3;
13850- vpxor (5*16)(%r12), RL3, RL3;
13851- vpxor (6*16)(%r12), RR4, RR4;
13852- vpxor (7*16)(%r12), RL4, RL4;
13853+ vpxor (0*16)(%r14), RR1, RR1;
13854+ vpxor (1*16)(%r14), RL1, RL1;
13855+ vpxor (2*16)(%r14), RR2, RR2;
13856+ vpxor (3*16)(%r14), RL2, RL2;
13857+ vpxor (4*16)(%r14), RR3, RR3;
13858+ vpxor (5*16)(%r14), RL3, RL3;
13859+ vpxor (6*16)(%r14), RR4, RR4;
13860+ vpxor (7*16)(%r14), RL4, RL4;
13861 vmovdqu RR1, (0*16)(%r11);
13862 vmovdqu RL1, (1*16)(%r11);
13863 vmovdqu RR2, (2*16)(%r11);
13864@@ -540,7 +546,8 @@ ENTRY(cast5_ctr_16way)
13865 vmovdqu RR4, (6*16)(%r11);
13866 vmovdqu RL4, (7*16)(%r11);
13867
13868- popq %r12;
13869+ popq %r14;
13870
13871+ pax_force_retaddr
13872 ret;
13873 ENDPROC(cast5_ctr_16way)
13874diff --git a/arch/x86/crypto/cast6-avx-x86_64-asm_64.S b/arch/x86/crypto/cast6-avx-x86_64-asm_64.S
13875index e3531f8..e123f35 100644
13876--- a/arch/x86/crypto/cast6-avx-x86_64-asm_64.S
13877+++ b/arch/x86/crypto/cast6-avx-x86_64-asm_64.S
13878@@ -24,6 +24,7 @@
13879 */
13880
13881 #include <linux/linkage.h>
13882+#include <asm/alternative-asm.h>
13883 #include "glue_helper-asm-avx.S"
13884
13885 .file "cast6-avx-x86_64-asm_64.S"
13886@@ -295,6 +296,7 @@ __cast6_enc_blk8:
13887 outunpack_blocks(RA1, RB1, RC1, RD1, RTMP, RX, RKRF, RKM);
13888 outunpack_blocks(RA2, RB2, RC2, RD2, RTMP, RX, RKRF, RKM);
13889
13890+ pax_force_retaddr
13891 ret;
13892 ENDPROC(__cast6_enc_blk8)
13893
13894@@ -340,6 +342,7 @@ __cast6_dec_blk8:
13895 outunpack_blocks(RA1, RB1, RC1, RD1, RTMP, RX, RKRF, RKM);
13896 outunpack_blocks(RA2, RB2, RC2, RD2, RTMP, RX, RKRF, RKM);
13897
13898+ pax_force_retaddr
13899 ret;
13900 ENDPROC(__cast6_dec_blk8)
13901
13902@@ -358,6 +361,7 @@ ENTRY(cast6_ecb_enc_8way)
13903
13904 store_8way(%r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
13905
13906+ pax_force_retaddr
13907 ret;
13908 ENDPROC(cast6_ecb_enc_8way)
13909
13910@@ -376,6 +380,7 @@ ENTRY(cast6_ecb_dec_8way)
13911
13912 store_8way(%r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
13913
13914+ pax_force_retaddr
13915 ret;
13916 ENDPROC(cast6_ecb_dec_8way)
13917
13918@@ -386,19 +391,20 @@ ENTRY(cast6_cbc_dec_8way)
13919 * %rdx: src
13920 */
13921
13922- pushq %r12;
13923+ pushq %r14;
13924
13925 movq %rsi, %r11;
13926- movq %rdx, %r12;
13927+ movq %rdx, %r14;
13928
13929 load_8way(%rdx, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
13930
13931 call __cast6_dec_blk8;
13932
13933- store_cbc_8way(%r12, %r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
13934+ store_cbc_8way(%r14, %r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
13935
13936- popq %r12;
13937+ popq %r14;
13938
13939+ pax_force_retaddr
13940 ret;
13941 ENDPROC(cast6_cbc_dec_8way)
13942
13943@@ -410,20 +416,21 @@ ENTRY(cast6_ctr_8way)
13944 * %rcx: iv (little endian, 128bit)
13945 */
13946
13947- pushq %r12;
13948+ pushq %r14;
13949
13950 movq %rsi, %r11;
13951- movq %rdx, %r12;
13952+ movq %rdx, %r14;
13953
13954 load_ctr_8way(%rcx, .Lbswap128_mask, RA1, RB1, RC1, RD1, RA2, RB2, RC2,
13955 RD2, RX, RKR, RKM);
13956
13957 call __cast6_enc_blk8;
13958
13959- store_ctr_8way(%r12, %r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
13960+ store_ctr_8way(%r14, %r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
13961
13962- popq %r12;
13963+ popq %r14;
13964
13965+ pax_force_retaddr
13966 ret;
13967 ENDPROC(cast6_ctr_8way)
13968
13969@@ -446,6 +453,7 @@ ENTRY(cast6_xts_enc_8way)
13970 /* dst <= regs xor IVs(in dst) */
13971 store_xts_8way(%r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
13972
13973+ pax_force_retaddr
13974 ret;
13975 ENDPROC(cast6_xts_enc_8way)
13976
13977@@ -468,5 +476,6 @@ ENTRY(cast6_xts_dec_8way)
13978 /* dst <= regs xor IVs(in dst) */
13979 store_xts_8way(%r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
13980
13981+ pax_force_retaddr
13982 ret;
13983 ENDPROC(cast6_xts_dec_8way)
13984diff --git a/arch/x86/crypto/crc32c-pcl-intel-asm_64.S b/arch/x86/crypto/crc32c-pcl-intel-asm_64.S
13985index 26d49eb..8bf39c8 100644
13986--- a/arch/x86/crypto/crc32c-pcl-intel-asm_64.S
13987+++ b/arch/x86/crypto/crc32c-pcl-intel-asm_64.S
13988@@ -45,6 +45,7 @@
13989
13990 #include <asm/inst.h>
13991 #include <linux/linkage.h>
13992+#include <asm/alternative-asm.h>
13993
13994 ## ISCSI CRC 32 Implementation with crc32 and pclmulqdq Instruction
13995
13996@@ -309,6 +310,7 @@ do_return:
13997 popq %rsi
13998 popq %rdi
13999 popq %rbx
14000+ pax_force_retaddr
14001 ret
14002
14003 ################################################################
14004@@ -330,7 +332,7 @@ ENDPROC(crc_pcl)
14005 ## PCLMULQDQ tables
14006 ## Table is 128 entries x 2 words (8 bytes) each
14007 ################################################################
14008-.section .rotata, "a", %progbits
14009+.section .rodata, "a", %progbits
14010 .align 8
14011 K_table:
14012 .long 0x493c7d27, 0x00000001
14013diff --git a/arch/x86/crypto/ghash-clmulni-intel_asm.S b/arch/x86/crypto/ghash-clmulni-intel_asm.S
14014index 5d1e007..098cb4f 100644
14015--- a/arch/x86/crypto/ghash-clmulni-intel_asm.S
14016+++ b/arch/x86/crypto/ghash-clmulni-intel_asm.S
14017@@ -18,6 +18,7 @@
14018
14019 #include <linux/linkage.h>
14020 #include <asm/inst.h>
14021+#include <asm/alternative-asm.h>
14022
14023 .data
14024
14025@@ -89,6 +90,7 @@ __clmul_gf128mul_ble:
14026 psrlq $1, T2
14027 pxor T2, T1
14028 pxor T1, DATA
14029+ pax_force_retaddr
14030 ret
14031 ENDPROC(__clmul_gf128mul_ble)
14032
14033@@ -101,6 +103,7 @@ ENTRY(clmul_ghash_mul)
14034 call __clmul_gf128mul_ble
14035 PSHUFB_XMM BSWAP DATA
14036 movups DATA, (%rdi)
14037+ pax_force_retaddr
14038 ret
14039 ENDPROC(clmul_ghash_mul)
14040
14041@@ -128,5 +131,6 @@ ENTRY(clmul_ghash_update)
14042 PSHUFB_XMM BSWAP DATA
14043 movups DATA, (%rdi)
14044 .Lupdate_just_ret:
14045+ pax_force_retaddr
14046 ret
14047 ENDPROC(clmul_ghash_update)
14048diff --git a/arch/x86/crypto/salsa20-x86_64-asm_64.S b/arch/x86/crypto/salsa20-x86_64-asm_64.S
14049index 9279e0b..c4b3d2c 100644
14050--- a/arch/x86/crypto/salsa20-x86_64-asm_64.S
14051+++ b/arch/x86/crypto/salsa20-x86_64-asm_64.S
14052@@ -1,4 +1,5 @@
14053 #include <linux/linkage.h>
14054+#include <asm/alternative-asm.h>
14055
14056 # enter salsa20_encrypt_bytes
14057 ENTRY(salsa20_encrypt_bytes)
14058@@ -789,6 +790,7 @@ ENTRY(salsa20_encrypt_bytes)
14059 add %r11,%rsp
14060 mov %rdi,%rax
14061 mov %rsi,%rdx
14062+ pax_force_retaddr
14063 ret
14064 # bytesatleast65:
14065 ._bytesatleast65:
14066@@ -889,6 +891,7 @@ ENTRY(salsa20_keysetup)
14067 add %r11,%rsp
14068 mov %rdi,%rax
14069 mov %rsi,%rdx
14070+ pax_force_retaddr
14071 ret
14072 ENDPROC(salsa20_keysetup)
14073
14074@@ -914,5 +917,6 @@ ENTRY(salsa20_ivsetup)
14075 add %r11,%rsp
14076 mov %rdi,%rax
14077 mov %rsi,%rdx
14078+ pax_force_retaddr
14079 ret
14080 ENDPROC(salsa20_ivsetup)
14081diff --git a/arch/x86/crypto/serpent-avx-x86_64-asm_64.S b/arch/x86/crypto/serpent-avx-x86_64-asm_64.S
14082index 2f202f4..d9164d6 100644
14083--- a/arch/x86/crypto/serpent-avx-x86_64-asm_64.S
14084+++ b/arch/x86/crypto/serpent-avx-x86_64-asm_64.S
14085@@ -24,6 +24,7 @@
14086 */
14087
14088 #include <linux/linkage.h>
14089+#include <asm/alternative-asm.h>
14090 #include "glue_helper-asm-avx.S"
14091
14092 .file "serpent-avx-x86_64-asm_64.S"
14093@@ -618,6 +619,7 @@ __serpent_enc_blk8_avx:
14094 write_blocks(RA1, RB1, RC1, RD1, RK0, RK1, RK2);
14095 write_blocks(RA2, RB2, RC2, RD2, RK0, RK1, RK2);
14096
14097+ pax_force_retaddr
14098 ret;
14099 ENDPROC(__serpent_enc_blk8_avx)
14100
14101@@ -672,6 +674,7 @@ __serpent_dec_blk8_avx:
14102 write_blocks(RC1, RD1, RB1, RE1, RK0, RK1, RK2);
14103 write_blocks(RC2, RD2, RB2, RE2, RK0, RK1, RK2);
14104
14105+ pax_force_retaddr
14106 ret;
14107 ENDPROC(__serpent_dec_blk8_avx)
14108
14109@@ -688,6 +691,7 @@ ENTRY(serpent_ecb_enc_8way_avx)
14110
14111 store_8way(%rsi, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
14112
14113+ pax_force_retaddr
14114 ret;
14115 ENDPROC(serpent_ecb_enc_8way_avx)
14116
14117@@ -704,6 +708,7 @@ ENTRY(serpent_ecb_dec_8way_avx)
14118
14119 store_8way(%rsi, RC1, RD1, RB1, RE1, RC2, RD2, RB2, RE2);
14120
14121+ pax_force_retaddr
14122 ret;
14123 ENDPROC(serpent_ecb_dec_8way_avx)
14124
14125@@ -720,6 +725,7 @@ ENTRY(serpent_cbc_dec_8way_avx)
14126
14127 store_cbc_8way(%rdx, %rsi, RC1, RD1, RB1, RE1, RC2, RD2, RB2, RE2);
14128
14129+ pax_force_retaddr
14130 ret;
14131 ENDPROC(serpent_cbc_dec_8way_avx)
14132
14133@@ -738,6 +744,7 @@ ENTRY(serpent_ctr_8way_avx)
14134
14135 store_ctr_8way(%rdx, %rsi, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
14136
14137+ pax_force_retaddr
14138 ret;
14139 ENDPROC(serpent_ctr_8way_avx)
14140
14141@@ -758,6 +765,7 @@ ENTRY(serpent_xts_enc_8way_avx)
14142 /* dst <= regs xor IVs(in dst) */
14143 store_xts_8way(%rsi, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
14144
14145+ pax_force_retaddr
14146 ret;
14147 ENDPROC(serpent_xts_enc_8way_avx)
14148
14149@@ -778,5 +786,6 @@ ENTRY(serpent_xts_dec_8way_avx)
14150 /* dst <= regs xor IVs(in dst) */
14151 store_xts_8way(%rsi, RC1, RD1, RB1, RE1, RC2, RD2, RB2, RE2);
14152
14153+ pax_force_retaddr
14154 ret;
14155 ENDPROC(serpent_xts_dec_8way_avx)
14156diff --git a/arch/x86/crypto/serpent-avx2-asm_64.S b/arch/x86/crypto/serpent-avx2-asm_64.S
14157index b222085..abd483c 100644
14158--- a/arch/x86/crypto/serpent-avx2-asm_64.S
14159+++ b/arch/x86/crypto/serpent-avx2-asm_64.S
14160@@ -15,6 +15,7 @@
14161 */
14162
14163 #include <linux/linkage.h>
14164+#include <asm/alternative-asm.h>
14165 #include "glue_helper-asm-avx2.S"
14166
14167 .file "serpent-avx2-asm_64.S"
14168@@ -610,6 +611,7 @@ __serpent_enc_blk16:
14169 write_blocks(RA1, RB1, RC1, RD1, RK0, RK1, RK2);
14170 write_blocks(RA2, RB2, RC2, RD2, RK0, RK1, RK2);
14171
14172+ pax_force_retaddr
14173 ret;
14174 ENDPROC(__serpent_enc_blk16)
14175
14176@@ -664,6 +666,7 @@ __serpent_dec_blk16:
14177 write_blocks(RC1, RD1, RB1, RE1, RK0, RK1, RK2);
14178 write_blocks(RC2, RD2, RB2, RE2, RK0, RK1, RK2);
14179
14180+ pax_force_retaddr
14181 ret;
14182 ENDPROC(__serpent_dec_blk16)
14183
14184@@ -684,6 +687,7 @@ ENTRY(serpent_ecb_enc_16way)
14185
14186 vzeroupper;
14187
14188+ pax_force_retaddr
14189 ret;
14190 ENDPROC(serpent_ecb_enc_16way)
14191
14192@@ -704,6 +708,7 @@ ENTRY(serpent_ecb_dec_16way)
14193
14194 vzeroupper;
14195
14196+ pax_force_retaddr
14197 ret;
14198 ENDPROC(serpent_ecb_dec_16way)
14199
14200@@ -725,6 +730,7 @@ ENTRY(serpent_cbc_dec_16way)
14201
14202 vzeroupper;
14203
14204+ pax_force_retaddr
14205 ret;
14206 ENDPROC(serpent_cbc_dec_16way)
14207
14208@@ -748,6 +754,7 @@ ENTRY(serpent_ctr_16way)
14209
14210 vzeroupper;
14211
14212+ pax_force_retaddr
14213 ret;
14214 ENDPROC(serpent_ctr_16way)
14215
14216@@ -772,6 +779,7 @@ ENTRY(serpent_xts_enc_16way)
14217
14218 vzeroupper;
14219
14220+ pax_force_retaddr
14221 ret;
14222 ENDPROC(serpent_xts_enc_16way)
14223
14224@@ -796,5 +804,6 @@ ENTRY(serpent_xts_dec_16way)
14225
14226 vzeroupper;
14227
14228+ pax_force_retaddr
14229 ret;
14230 ENDPROC(serpent_xts_dec_16way)
14231diff --git a/arch/x86/crypto/serpent-sse2-x86_64-asm_64.S b/arch/x86/crypto/serpent-sse2-x86_64-asm_64.S
14232index acc066c..1559cc4 100644
14233--- a/arch/x86/crypto/serpent-sse2-x86_64-asm_64.S
14234+++ b/arch/x86/crypto/serpent-sse2-x86_64-asm_64.S
14235@@ -25,6 +25,7 @@
14236 */
14237
14238 #include <linux/linkage.h>
14239+#include <asm/alternative-asm.h>
14240
14241 .file "serpent-sse2-x86_64-asm_64.S"
14242 .text
14243@@ -690,12 +691,14 @@ ENTRY(__serpent_enc_blk_8way)
14244 write_blocks(%rsi, RA1, RB1, RC1, RD1, RK0, RK1, RK2);
14245 write_blocks(%rax, RA2, RB2, RC2, RD2, RK0, RK1, RK2);
14246
14247+ pax_force_retaddr
14248 ret;
14249
14250 .L__enc_xor8:
14251 xor_blocks(%rsi, RA1, RB1, RC1, RD1, RK0, RK1, RK2);
14252 xor_blocks(%rax, RA2, RB2, RC2, RD2, RK0, RK1, RK2);
14253
14254+ pax_force_retaddr
14255 ret;
14256 ENDPROC(__serpent_enc_blk_8way)
14257
14258@@ -750,5 +753,6 @@ ENTRY(serpent_dec_blk_8way)
14259 write_blocks(%rsi, RC1, RD1, RB1, RE1, RK0, RK1, RK2);
14260 write_blocks(%rax, RC2, RD2, RB2, RE2, RK0, RK1, RK2);
14261
14262+ pax_force_retaddr
14263 ret;
14264 ENDPROC(serpent_dec_blk_8way)
14265diff --git a/arch/x86/crypto/sha1_ssse3_asm.S b/arch/x86/crypto/sha1_ssse3_asm.S
14266index a410950..9dfe7ad 100644
14267--- a/arch/x86/crypto/sha1_ssse3_asm.S
14268+++ b/arch/x86/crypto/sha1_ssse3_asm.S
14269@@ -29,6 +29,7 @@
14270 */
14271
14272 #include <linux/linkage.h>
14273+#include <asm/alternative-asm.h>
14274
14275 #define CTX %rdi // arg1
14276 #define BUF %rsi // arg2
14277@@ -75,9 +76,9 @@
14278
14279 push %rbx
14280 push %rbp
14281- push %r12
14282+ push %r14
14283
14284- mov %rsp, %r12
14285+ mov %rsp, %r14
14286 sub $64, %rsp # allocate workspace
14287 and $~15, %rsp # align stack
14288
14289@@ -99,11 +100,12 @@
14290 xor %rax, %rax
14291 rep stosq
14292
14293- mov %r12, %rsp # deallocate workspace
14294+ mov %r14, %rsp # deallocate workspace
14295
14296- pop %r12
14297+ pop %r14
14298 pop %rbp
14299 pop %rbx
14300+ pax_force_retaddr
14301 ret
14302
14303 ENDPROC(\name)
14304diff --git a/arch/x86/crypto/sha256-avx-asm.S b/arch/x86/crypto/sha256-avx-asm.S
14305index 642f156..51a513c 100644
14306--- a/arch/x86/crypto/sha256-avx-asm.S
14307+++ b/arch/x86/crypto/sha256-avx-asm.S
14308@@ -49,6 +49,7 @@
14309
14310 #ifdef CONFIG_AS_AVX
14311 #include <linux/linkage.h>
14312+#include <asm/alternative-asm.h>
14313
14314 ## assume buffers not aligned
14315 #define VMOVDQ vmovdqu
14316@@ -460,6 +461,7 @@ done_hash:
14317 popq %r13
14318 popq %rbp
14319 popq %rbx
14320+ pax_force_retaddr
14321 ret
14322 ENDPROC(sha256_transform_avx)
14323
14324diff --git a/arch/x86/crypto/sha256-avx2-asm.S b/arch/x86/crypto/sha256-avx2-asm.S
14325index 9e86944..3795e6a 100644
14326--- a/arch/x86/crypto/sha256-avx2-asm.S
14327+++ b/arch/x86/crypto/sha256-avx2-asm.S
14328@@ -50,6 +50,7 @@
14329
14330 #ifdef CONFIG_AS_AVX2
14331 #include <linux/linkage.h>
14332+#include <asm/alternative-asm.h>
14333
14334 ## assume buffers not aligned
14335 #define VMOVDQ vmovdqu
14336@@ -720,6 +721,7 @@ done_hash:
14337 popq %r12
14338 popq %rbp
14339 popq %rbx
14340+ pax_force_retaddr
14341 ret
14342 ENDPROC(sha256_transform_rorx)
14343
14344diff --git a/arch/x86/crypto/sha256-ssse3-asm.S b/arch/x86/crypto/sha256-ssse3-asm.S
14345index f833b74..8c62a9e 100644
14346--- a/arch/x86/crypto/sha256-ssse3-asm.S
14347+++ b/arch/x86/crypto/sha256-ssse3-asm.S
14348@@ -47,6 +47,7 @@
14349 ########################################################################
14350
14351 #include <linux/linkage.h>
14352+#include <asm/alternative-asm.h>
14353
14354 ## assume buffers not aligned
14355 #define MOVDQ movdqu
14356@@ -471,6 +472,7 @@ done_hash:
14357 popq %rbp
14358 popq %rbx
14359
14360+ pax_force_retaddr
14361 ret
14362 ENDPROC(sha256_transform_ssse3)
14363
14364diff --git a/arch/x86/crypto/sha512-avx-asm.S b/arch/x86/crypto/sha512-avx-asm.S
14365index 974dde9..a823ff9 100644
14366--- a/arch/x86/crypto/sha512-avx-asm.S
14367+++ b/arch/x86/crypto/sha512-avx-asm.S
14368@@ -49,6 +49,7 @@
14369
14370 #ifdef CONFIG_AS_AVX
14371 #include <linux/linkage.h>
14372+#include <asm/alternative-asm.h>
14373
14374 .text
14375
14376@@ -364,6 +365,7 @@ updateblock:
14377 mov frame_RSPSAVE(%rsp), %rsp
14378
14379 nowork:
14380+ pax_force_retaddr
14381 ret
14382 ENDPROC(sha512_transform_avx)
14383
14384diff --git a/arch/x86/crypto/sha512-avx2-asm.S b/arch/x86/crypto/sha512-avx2-asm.S
14385index 568b961..ed20c37 100644
14386--- a/arch/x86/crypto/sha512-avx2-asm.S
14387+++ b/arch/x86/crypto/sha512-avx2-asm.S
14388@@ -51,6 +51,7 @@
14389
14390 #ifdef CONFIG_AS_AVX2
14391 #include <linux/linkage.h>
14392+#include <asm/alternative-asm.h>
14393
14394 .text
14395
14396@@ -678,6 +679,7 @@ done_hash:
14397
14398 # Restore Stack Pointer
14399 mov frame_RSPSAVE(%rsp), %rsp
14400+ pax_force_retaddr
14401 ret
14402 ENDPROC(sha512_transform_rorx)
14403
14404diff --git a/arch/x86/crypto/sha512-ssse3-asm.S b/arch/x86/crypto/sha512-ssse3-asm.S
14405index fb56855..6edd768 100644
14406--- a/arch/x86/crypto/sha512-ssse3-asm.S
14407+++ b/arch/x86/crypto/sha512-ssse3-asm.S
14408@@ -48,6 +48,7 @@
14409 ########################################################################
14410
14411 #include <linux/linkage.h>
14412+#include <asm/alternative-asm.h>
14413
14414 .text
14415
14416@@ -363,6 +364,7 @@ updateblock:
14417 mov frame_RSPSAVE(%rsp), %rsp
14418
14419 nowork:
14420+ pax_force_retaddr
14421 ret
14422 ENDPROC(sha512_transform_ssse3)
14423
14424diff --git a/arch/x86/crypto/twofish-avx-x86_64-asm_64.S b/arch/x86/crypto/twofish-avx-x86_64-asm_64.S
14425index 0505813..b067311 100644
14426--- a/arch/x86/crypto/twofish-avx-x86_64-asm_64.S
14427+++ b/arch/x86/crypto/twofish-avx-x86_64-asm_64.S
14428@@ -24,6 +24,7 @@
14429 */
14430
14431 #include <linux/linkage.h>
14432+#include <asm/alternative-asm.h>
14433 #include "glue_helper-asm-avx.S"
14434
14435 .file "twofish-avx-x86_64-asm_64.S"
14436@@ -284,6 +285,7 @@ __twofish_enc_blk8:
14437 outunpack_blocks(RC1, RD1, RA1, RB1, RK1, RX0, RY0, RK2);
14438 outunpack_blocks(RC2, RD2, RA2, RB2, RK1, RX0, RY0, RK2);
14439
14440+ pax_force_retaddr
14441 ret;
14442 ENDPROC(__twofish_enc_blk8)
14443
14444@@ -324,6 +326,7 @@ __twofish_dec_blk8:
14445 outunpack_blocks(RA1, RB1, RC1, RD1, RK1, RX0, RY0, RK2);
14446 outunpack_blocks(RA2, RB2, RC2, RD2, RK1, RX0, RY0, RK2);
14447
14448+ pax_force_retaddr
14449 ret;
14450 ENDPROC(__twofish_dec_blk8)
14451
14452@@ -342,6 +345,7 @@ ENTRY(twofish_ecb_enc_8way)
14453
14454 store_8way(%r11, RC1, RD1, RA1, RB1, RC2, RD2, RA2, RB2);
14455
14456+ pax_force_retaddr
14457 ret;
14458 ENDPROC(twofish_ecb_enc_8way)
14459
14460@@ -360,6 +364,7 @@ ENTRY(twofish_ecb_dec_8way)
14461
14462 store_8way(%r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
14463
14464+ pax_force_retaddr
14465 ret;
14466 ENDPROC(twofish_ecb_dec_8way)
14467
14468@@ -370,19 +375,20 @@ ENTRY(twofish_cbc_dec_8way)
14469 * %rdx: src
14470 */
14471
14472- pushq %r12;
14473+ pushq %r14;
14474
14475 movq %rsi, %r11;
14476- movq %rdx, %r12;
14477+ movq %rdx, %r14;
14478
14479 load_8way(%rdx, RC1, RD1, RA1, RB1, RC2, RD2, RA2, RB2);
14480
14481 call __twofish_dec_blk8;
14482
14483- store_cbc_8way(%r12, %r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
14484+ store_cbc_8way(%r14, %r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
14485
14486- popq %r12;
14487+ popq %r14;
14488
14489+ pax_force_retaddr
14490 ret;
14491 ENDPROC(twofish_cbc_dec_8way)
14492
14493@@ -394,20 +400,21 @@ ENTRY(twofish_ctr_8way)
14494 * %rcx: iv (little endian, 128bit)
14495 */
14496
14497- pushq %r12;
14498+ pushq %r14;
14499
14500 movq %rsi, %r11;
14501- movq %rdx, %r12;
14502+ movq %rdx, %r14;
14503
14504 load_ctr_8way(%rcx, .Lbswap128_mask, RA1, RB1, RC1, RD1, RA2, RB2, RC2,
14505 RD2, RX0, RX1, RY0);
14506
14507 call __twofish_enc_blk8;
14508
14509- store_ctr_8way(%r12, %r11, RC1, RD1, RA1, RB1, RC2, RD2, RA2, RB2);
14510+ store_ctr_8way(%r14, %r11, RC1, RD1, RA1, RB1, RC2, RD2, RA2, RB2);
14511
14512- popq %r12;
14513+ popq %r14;
14514
14515+ pax_force_retaddr
14516 ret;
14517 ENDPROC(twofish_ctr_8way)
14518
14519@@ -430,6 +437,7 @@ ENTRY(twofish_xts_enc_8way)
14520 /* dst <= regs xor IVs(in dst) */
14521 store_xts_8way(%r11, RC1, RD1, RA1, RB1, RC2, RD2, RA2, RB2);
14522
14523+ pax_force_retaddr
14524 ret;
14525 ENDPROC(twofish_xts_enc_8way)
14526
14527@@ -452,5 +460,6 @@ ENTRY(twofish_xts_dec_8way)
14528 /* dst <= regs xor IVs(in dst) */
14529 store_xts_8way(%r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
14530
14531+ pax_force_retaddr
14532 ret;
14533 ENDPROC(twofish_xts_dec_8way)
14534diff --git a/arch/x86/crypto/twofish-x86_64-asm_64-3way.S b/arch/x86/crypto/twofish-x86_64-asm_64-3way.S
14535index 1c3b7ce..02f578d 100644
14536--- a/arch/x86/crypto/twofish-x86_64-asm_64-3way.S
14537+++ b/arch/x86/crypto/twofish-x86_64-asm_64-3way.S
14538@@ -21,6 +21,7 @@
14539 */
14540
14541 #include <linux/linkage.h>
14542+#include <asm/alternative-asm.h>
14543
14544 .file "twofish-x86_64-asm-3way.S"
14545 .text
14546@@ -258,6 +259,7 @@ ENTRY(__twofish_enc_blk_3way)
14547 popq %r13;
14548 popq %r14;
14549 popq %r15;
14550+ pax_force_retaddr
14551 ret;
14552
14553 .L__enc_xor3:
14554@@ -269,6 +271,7 @@ ENTRY(__twofish_enc_blk_3way)
14555 popq %r13;
14556 popq %r14;
14557 popq %r15;
14558+ pax_force_retaddr
14559 ret;
14560 ENDPROC(__twofish_enc_blk_3way)
14561
14562@@ -308,5 +311,6 @@ ENTRY(twofish_dec_blk_3way)
14563 popq %r13;
14564 popq %r14;
14565 popq %r15;
14566+ pax_force_retaddr
14567 ret;
14568 ENDPROC(twofish_dec_blk_3way)
14569diff --git a/arch/x86/crypto/twofish-x86_64-asm_64.S b/arch/x86/crypto/twofish-x86_64-asm_64.S
14570index a039d21..524b8b2 100644
14571--- a/arch/x86/crypto/twofish-x86_64-asm_64.S
14572+++ b/arch/x86/crypto/twofish-x86_64-asm_64.S
14573@@ -22,6 +22,7 @@
14574
14575 #include <linux/linkage.h>
14576 #include <asm/asm-offsets.h>
14577+#include <asm/alternative-asm.h>
14578
14579 #define a_offset 0
14580 #define b_offset 4
14581@@ -265,6 +266,7 @@ ENTRY(twofish_enc_blk)
14582
14583 popq R1
14584 movq $1,%rax
14585+ pax_force_retaddr
14586 ret
14587 ENDPROC(twofish_enc_blk)
14588
14589@@ -317,5 +319,6 @@ ENTRY(twofish_dec_blk)
14590
14591 popq R1
14592 movq $1,%rax
14593+ pax_force_retaddr
14594 ret
14595 ENDPROC(twofish_dec_blk)
14596diff --git a/arch/x86/ia32/ia32_aout.c b/arch/x86/ia32/ia32_aout.c
14597index ae6aad1..719d6d9 100644
14598--- a/arch/x86/ia32/ia32_aout.c
14599+++ b/arch/x86/ia32/ia32_aout.c
14600@@ -153,6 +153,8 @@ static int aout_core_dump(struct coredump_params *cprm)
14601 unsigned long dump_start, dump_size;
14602 struct user32 dump;
14603
14604+ memset(&dump, 0, sizeof(dump));
14605+
14606 fs = get_fs();
14607 set_fs(KERNEL_DS);
14608 has_dumped = 1;
14609diff --git a/arch/x86/ia32/ia32_signal.c b/arch/x86/ia32/ia32_signal.c
14610index d0165c9..0d5639b 100644
14611--- a/arch/x86/ia32/ia32_signal.c
14612+++ b/arch/x86/ia32/ia32_signal.c
14613@@ -218,7 +218,7 @@ asmlinkage long sys32_sigreturn(void)
14614 if (__get_user(set.sig[0], &frame->sc.oldmask)
14615 || (_COMPAT_NSIG_WORDS > 1
14616 && __copy_from_user((((char *) &set.sig) + 4),
14617- &frame->extramask,
14618+ frame->extramask,
14619 sizeof(frame->extramask))))
14620 goto badframe;
14621
14622@@ -338,7 +338,7 @@ static void __user *get_sigframe(struct ksignal *ksig, struct pt_regs *regs,
14623 sp -= frame_size;
14624 /* Align the stack pointer according to the i386 ABI,
14625 * i.e. so that on function entry ((sp + 4) & 15) == 0. */
14626- sp = ((sp + 4) & -16ul) - 4;
14627+ sp = ((sp - 12) & -16ul) - 4;
14628 return (void __user *) sp;
14629 }
14630
14631@@ -383,10 +383,10 @@ int ia32_setup_frame(int sig, struct ksignal *ksig,
14632 } else {
14633 /* Return stub is in 32bit vsyscall page */
14634 if (current->mm->context.vdso)
14635- restorer = current->mm->context.vdso +
14636- selected_vdso32->sym___kernel_sigreturn;
14637+ restorer = (void __force_user *)(current->mm->context.vdso +
14638+ selected_vdso32->sym___kernel_sigreturn);
14639 else
14640- restorer = &frame->retcode;
14641+ restorer = frame->retcode;
14642 }
14643
14644 put_user_try {
14645@@ -396,7 +396,7 @@ int ia32_setup_frame(int sig, struct ksignal *ksig,
14646 * These are actually not used anymore, but left because some
14647 * gdb versions depend on them as a marker.
14648 */
14649- put_user_ex(*((u64 *)&code), (u64 __user *)frame->retcode);
14650+ put_user_ex(*((const u64 *)&code), (u64 __user *)frame->retcode);
14651 } put_user_catch(err);
14652
14653 if (err)
14654@@ -438,7 +438,7 @@ int ia32_setup_rt_frame(int sig, struct ksignal *ksig,
14655 0xb8,
14656 __NR_ia32_rt_sigreturn,
14657 0x80cd,
14658- 0,
14659+ 0
14660 };
14661
14662 frame = get_sigframe(ksig, regs, sizeof(*frame), &fpstate);
14663@@ -461,16 +461,19 @@ int ia32_setup_rt_frame(int sig, struct ksignal *ksig,
14664
14665 if (ksig->ka.sa.sa_flags & SA_RESTORER)
14666 restorer = ksig->ka.sa.sa_restorer;
14667+ else if (current->mm->context.vdso)
14668+ /* Return stub is in 32bit vsyscall page */
14669+ restorer = (void __force_user *)(current->mm->context.vdso +
14670+ selected_vdso32->sym___kernel_rt_sigreturn);
14671 else
14672- restorer = current->mm->context.vdso +
14673- selected_vdso32->sym___kernel_rt_sigreturn;
14674+ restorer = frame->retcode;
14675 put_user_ex(ptr_to_compat(restorer), &frame->pretcode);
14676
14677 /*
14678 * Not actually used anymore, but left because some gdb
14679 * versions need it.
14680 */
14681- put_user_ex(*((u64 *)&code), (u64 __user *)frame->retcode);
14682+ put_user_ex(*((const u64 *)&code), (u64 __user *)frame->retcode);
14683 } put_user_catch(err);
14684
14685 err |= copy_siginfo_to_user32(&frame->info, &ksig->info);
14686diff --git a/arch/x86/ia32/ia32entry.S b/arch/x86/ia32/ia32entry.S
14687index 156ebca..9591cf0 100644
14688--- a/arch/x86/ia32/ia32entry.S
14689+++ b/arch/x86/ia32/ia32entry.S
14690@@ -15,8 +15,10 @@
14691 #include <asm/irqflags.h>
14692 #include <asm/asm.h>
14693 #include <asm/smap.h>
14694+#include <asm/pgtable.h>
14695 #include <linux/linkage.h>
14696 #include <linux/err.h>
14697+#include <asm/alternative-asm.h>
14698
14699 /* Avoid __ASSEMBLER__'ifying <linux/audit.h> just for this. */
14700 #include <linux/elf-em.h>
14701@@ -62,12 +64,12 @@
14702 */
14703 .macro LOAD_ARGS32 offset, _r9=0
14704 .if \_r9
14705- movl \offset+16(%rsp),%r9d
14706+ movl \offset+R9(%rsp),%r9d
14707 .endif
14708- movl \offset+40(%rsp),%ecx
14709- movl \offset+48(%rsp),%edx
14710- movl \offset+56(%rsp),%esi
14711- movl \offset+64(%rsp),%edi
14712+ movl \offset+RCX(%rsp),%ecx
14713+ movl \offset+RDX(%rsp),%edx
14714+ movl \offset+RSI(%rsp),%esi
14715+ movl \offset+RDI(%rsp),%edi
14716 movl %eax,%eax /* zero extension */
14717 .endm
14718
14719@@ -96,6 +98,32 @@ ENTRY(native_irq_enable_sysexit)
14720 ENDPROC(native_irq_enable_sysexit)
14721 #endif
14722
14723+ .macro pax_enter_kernel_user
14724+ pax_set_fptr_mask
14725+#ifdef CONFIG_PAX_MEMORY_UDEREF
14726+ call pax_enter_kernel_user
14727+#endif
14728+ .endm
14729+
14730+ .macro pax_exit_kernel_user
14731+#ifdef CONFIG_PAX_MEMORY_UDEREF
14732+ call pax_exit_kernel_user
14733+#endif
14734+#ifdef CONFIG_PAX_RANDKSTACK
14735+ pushq %rax
14736+ pushq %r11
14737+ call pax_randomize_kstack
14738+ popq %r11
14739+ popq %rax
14740+#endif
14741+ .endm
14742+
14743+ .macro pax_erase_kstack
14744+#ifdef CONFIG_PAX_MEMORY_STACKLEAK
14745+ call pax_erase_kstack
14746+#endif
14747+ .endm
14748+
14749 /*
14750 * 32bit SYSENTER instruction entry.
14751 *
14752@@ -122,12 +150,6 @@ ENTRY(ia32_sysenter_target)
14753 CFI_REGISTER rsp,rbp
14754 SWAPGS_UNSAFE_STACK
14755 movq PER_CPU_VAR(kernel_stack), %rsp
14756- addq $(KERNEL_STACK_OFFSET),%rsp
14757- /*
14758- * No need to follow this irqs on/off section: the syscall
14759- * disabled irqs, here we enable it straight after entry:
14760- */
14761- ENABLE_INTERRUPTS(CLBR_NONE)
14762 movl %ebp,%ebp /* zero extension */
14763 pushq_cfi $__USER32_DS
14764 /*CFI_REL_OFFSET ss,0*/
14765@@ -135,23 +157,46 @@ ENTRY(ia32_sysenter_target)
14766 CFI_REL_OFFSET rsp,0
14767 pushfq_cfi
14768 /*CFI_REL_OFFSET rflags,0*/
14769- movl TI_sysenter_return+THREAD_INFO(%rsp,3*8-KERNEL_STACK_OFFSET),%r10d
14770- CFI_REGISTER rip,r10
14771+ orl $X86_EFLAGS_IF,(%rsp)
14772+ GET_THREAD_INFO(%r11)
14773+ movl TI_sysenter_return(%r11), %r11d
14774+ CFI_REGISTER rip,r11
14775 pushq_cfi $__USER32_CS
14776 /*CFI_REL_OFFSET cs,0*/
14777 movl %eax, %eax
14778- pushq_cfi %r10
14779+ pushq_cfi %r11
14780 CFI_REL_OFFSET rip,0
14781 pushq_cfi %rax
14782 cld
14783 SAVE_ARGS 0,1,0
14784+ pax_enter_kernel_user
14785+
14786+#ifdef CONFIG_PAX_RANDKSTACK
14787+ pax_erase_kstack
14788+#endif
14789+
14790+ /*
14791+ * No need to follow this irqs on/off section: the syscall
14792+ * disabled irqs, here we enable it straight after entry:
14793+ */
14794+ ENABLE_INTERRUPTS(CLBR_NONE)
14795 /* no need to do an access_ok check here because rbp has been
14796 32bit zero extended */
14797+
14798+#ifdef CONFIG_PAX_MEMORY_UDEREF
14799+ addq pax_user_shadow_base,%rbp
14800+ ASM_PAX_OPEN_USERLAND
14801+#endif
14802+
14803 ASM_STAC
14804 1: movl (%rbp),%ebp
14805 _ASM_EXTABLE(1b,ia32_badarg)
14806 ASM_CLAC
14807
14808+#ifdef CONFIG_PAX_MEMORY_UDEREF
14809+ ASM_PAX_CLOSE_USERLAND
14810+#endif
14811+
14812 /*
14813 * Sysenter doesn't filter flags, so we need to clear NT
14814 * ourselves. To save a few cycles, we can check whether
14815@@ -161,8 +206,9 @@ ENTRY(ia32_sysenter_target)
14816 jnz sysenter_fix_flags
14817 sysenter_flags_fixed:
14818
14819- orl $TS_COMPAT,TI_status+THREAD_INFO(%rsp,RIP-ARGOFFSET)
14820- testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
14821+ GET_THREAD_INFO(%r11)
14822+ orl $TS_COMPAT,TI_status(%r11)
14823+ testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags(%r11)
14824 CFI_REMEMBER_STATE
14825 jnz sysenter_tracesys
14826 cmpq $(IA32_NR_syscalls-1),%rax
14827@@ -172,14 +218,17 @@ sysenter_do_call:
14828 sysenter_dispatch:
14829 call *ia32_sys_call_table(,%rax,8)
14830 movq %rax,RAX-ARGOFFSET(%rsp)
14831+ GET_THREAD_INFO(%r11)
14832 DISABLE_INTERRUPTS(CLBR_NONE)
14833 TRACE_IRQS_OFF
14834- testl $_TIF_ALLWORK_MASK,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
14835+ testl $_TIF_ALLWORK_MASK,TI_flags(%r11)
14836 jnz sysexit_audit
14837 sysexit_from_sys_call:
14838- andl $~TS_COMPAT,TI_status+THREAD_INFO(%rsp,RIP-ARGOFFSET)
14839+ pax_exit_kernel_user
14840+ pax_erase_kstack
14841+ andl $~TS_COMPAT,TI_status(%r11)
14842 /* clear IF, that popfq doesn't enable interrupts early */
14843- andl $~0x200,EFLAGS-ARGOFFSET(%rsp)
14844+ andl $~X86_EFLAGS_IF,EFLAGS-ARGOFFSET(%rsp)
14845 movl RIP-ARGOFFSET(%rsp),%edx /* User %eip */
14846 CFI_REGISTER rip,rdx
14847 RESTORE_ARGS 0,24,0,0,0,0
14848@@ -205,6 +254,9 @@ sysexit_from_sys_call:
14849 movl %ebx,%esi /* 2nd arg: 1st syscall arg */
14850 movl %eax,%edi /* 1st arg: syscall number */
14851 call __audit_syscall_entry
14852+
14853+ pax_erase_kstack
14854+
14855 movl RAX-ARGOFFSET(%rsp),%eax /* reload syscall number */
14856 cmpq $(IA32_NR_syscalls-1),%rax
14857 ja ia32_badsys
14858@@ -216,7 +268,7 @@ sysexit_from_sys_call:
14859 .endm
14860
14861 .macro auditsys_exit exit
14862- testl $(_TIF_ALLWORK_MASK & ~_TIF_SYSCALL_AUDIT),TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
14863+ testl $(_TIF_ALLWORK_MASK & ~_TIF_SYSCALL_AUDIT),TI_flags(%r11)
14864 jnz ia32_ret_from_sys_call
14865 TRACE_IRQS_ON
14866 ENABLE_INTERRUPTS(CLBR_NONE)
14867@@ -227,11 +279,12 @@ sysexit_from_sys_call:
14868 1: setbe %al /* 1 if error, 0 if not */
14869 movzbl %al,%edi /* zero-extend that into %edi */
14870 call __audit_syscall_exit
14871+ GET_THREAD_INFO(%r11)
14872 movq RAX-ARGOFFSET(%rsp),%rax /* reload syscall return value */
14873 movl $(_TIF_ALLWORK_MASK & ~_TIF_SYSCALL_AUDIT),%edi
14874 DISABLE_INTERRUPTS(CLBR_NONE)
14875 TRACE_IRQS_OFF
14876- testl %edi,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
14877+ testl %edi,TI_flags(%r11)
14878 jz \exit
14879 CLEAR_RREGS -ARGOFFSET
14880 jmp int_with_check
14881@@ -253,7 +306,7 @@ sysenter_fix_flags:
14882
14883 sysenter_tracesys:
14884 #ifdef CONFIG_AUDITSYSCALL
14885- testl $(_TIF_WORK_SYSCALL_ENTRY & ~_TIF_SYSCALL_AUDIT),TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
14886+ testl $(_TIF_WORK_SYSCALL_ENTRY & ~_TIF_SYSCALL_AUDIT),TI_flags(%r11)
14887 jz sysenter_auditsys
14888 #endif
14889 SAVE_REST
14890@@ -265,6 +318,9 @@ sysenter_tracesys:
14891 RESTORE_REST
14892 cmpq $(IA32_NR_syscalls-1),%rax
14893 ja int_ret_from_sys_call /* sysenter_tracesys has set RAX(%rsp) */
14894+
14895+ pax_erase_kstack
14896+
14897 jmp sysenter_do_call
14898 CFI_ENDPROC
14899 ENDPROC(ia32_sysenter_target)
14900@@ -292,19 +348,25 @@ ENDPROC(ia32_sysenter_target)
14901 ENTRY(ia32_cstar_target)
14902 CFI_STARTPROC32 simple
14903 CFI_SIGNAL_FRAME
14904- CFI_DEF_CFA rsp,KERNEL_STACK_OFFSET
14905+ CFI_DEF_CFA rsp,0
14906 CFI_REGISTER rip,rcx
14907 /*CFI_REGISTER rflags,r11*/
14908 SWAPGS_UNSAFE_STACK
14909 movl %esp,%r8d
14910 CFI_REGISTER rsp,r8
14911 movq PER_CPU_VAR(kernel_stack),%rsp
14912+ SAVE_ARGS 8*6,0,0
14913+ pax_enter_kernel_user
14914+
14915+#ifdef CONFIG_PAX_RANDKSTACK
14916+ pax_erase_kstack
14917+#endif
14918+
14919 /*
14920 * No need to follow this irqs on/off section: the syscall
14921 * disabled irqs and here we enable it straight after entry:
14922 */
14923 ENABLE_INTERRUPTS(CLBR_NONE)
14924- SAVE_ARGS 8,0,0
14925 movl %eax,%eax /* zero extension */
14926 movq %rax,ORIG_RAX-ARGOFFSET(%rsp)
14927 movq %rcx,RIP-ARGOFFSET(%rsp)
14928@@ -320,12 +382,25 @@ ENTRY(ia32_cstar_target)
14929 /* no need to do an access_ok check here because r8 has been
14930 32bit zero extended */
14931 /* hardware stack frame is complete now */
14932+
14933+#ifdef CONFIG_PAX_MEMORY_UDEREF
14934+ ASM_PAX_OPEN_USERLAND
14935+ movq pax_user_shadow_base,%r8
14936+ addq RSP-ARGOFFSET(%rsp),%r8
14937+#endif
14938+
14939 ASM_STAC
14940 1: movl (%r8),%r9d
14941 _ASM_EXTABLE(1b,ia32_badarg)
14942 ASM_CLAC
14943- orl $TS_COMPAT,TI_status+THREAD_INFO(%rsp,RIP-ARGOFFSET)
14944- testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
14945+
14946+#ifdef CONFIG_PAX_MEMORY_UDEREF
14947+ ASM_PAX_CLOSE_USERLAND
14948+#endif
14949+
14950+ GET_THREAD_INFO(%r11)
14951+ orl $TS_COMPAT,TI_status(%r11)
14952+ testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags(%r11)
14953 CFI_REMEMBER_STATE
14954 jnz cstar_tracesys
14955 cmpq $IA32_NR_syscalls-1,%rax
14956@@ -335,13 +410,16 @@ cstar_do_call:
14957 cstar_dispatch:
14958 call *ia32_sys_call_table(,%rax,8)
14959 movq %rax,RAX-ARGOFFSET(%rsp)
14960+ GET_THREAD_INFO(%r11)
14961 DISABLE_INTERRUPTS(CLBR_NONE)
14962 TRACE_IRQS_OFF
14963- testl $_TIF_ALLWORK_MASK,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
14964+ testl $_TIF_ALLWORK_MASK,TI_flags(%r11)
14965 jnz sysretl_audit
14966 sysretl_from_sys_call:
14967- andl $~TS_COMPAT,TI_status+THREAD_INFO(%rsp,RIP-ARGOFFSET)
14968- RESTORE_ARGS 0,-ARG_SKIP,0,0,0
14969+ pax_exit_kernel_user
14970+ pax_erase_kstack
14971+ andl $~TS_COMPAT,TI_status(%r11)
14972+ RESTORE_ARGS 0,-ORIG_RAX,0,0,0
14973 movl RIP-ARGOFFSET(%rsp),%ecx
14974 CFI_REGISTER rip,rcx
14975 movl EFLAGS-ARGOFFSET(%rsp),%r11d
14976@@ -368,7 +446,7 @@ sysretl_audit:
14977
14978 cstar_tracesys:
14979 #ifdef CONFIG_AUDITSYSCALL
14980- testl $(_TIF_WORK_SYSCALL_ENTRY & ~_TIF_SYSCALL_AUDIT),TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
14981+ testl $(_TIF_WORK_SYSCALL_ENTRY & ~_TIF_SYSCALL_AUDIT),TI_flags(%r11)
14982 jz cstar_auditsys
14983 #endif
14984 xchgl %r9d,%ebp
14985@@ -382,11 +460,19 @@ cstar_tracesys:
14986 xchgl %ebp,%r9d
14987 cmpq $(IA32_NR_syscalls-1),%rax
14988 ja int_ret_from_sys_call /* cstar_tracesys has set RAX(%rsp) */
14989+
14990+ pax_erase_kstack
14991+
14992 jmp cstar_do_call
14993 END(ia32_cstar_target)
14994
14995 ia32_badarg:
14996 ASM_CLAC
14997+
14998+#ifdef CONFIG_PAX_MEMORY_UDEREF
14999+ ASM_PAX_CLOSE_USERLAND
15000+#endif
15001+
15002 movq $-EFAULT,%rax
15003 jmp ia32_sysret
15004 CFI_ENDPROC
15005@@ -423,19 +509,26 @@ ENTRY(ia32_syscall)
15006 CFI_REL_OFFSET rip,RIP-RIP
15007 PARAVIRT_ADJUST_EXCEPTION_FRAME
15008 SWAPGS
15009- /*
15010- * No need to follow this irqs on/off section: the syscall
15011- * disabled irqs and here we enable it straight after entry:
15012- */
15013- ENABLE_INTERRUPTS(CLBR_NONE)
15014 movl %eax,%eax
15015 pushq_cfi %rax
15016 cld
15017 /* note the registers are not zero extended to the sf.
15018 this could be a problem. */
15019 SAVE_ARGS 0,1,0
15020- orl $TS_COMPAT,TI_status+THREAD_INFO(%rsp,RIP-ARGOFFSET)
15021- testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
15022+ pax_enter_kernel_user
15023+
15024+#ifdef CONFIG_PAX_RANDKSTACK
15025+ pax_erase_kstack
15026+#endif
15027+
15028+ /*
15029+ * No need to follow this irqs on/off section: the syscall
15030+ * disabled irqs and here we enable it straight after entry:
15031+ */
15032+ ENABLE_INTERRUPTS(CLBR_NONE)
15033+ GET_THREAD_INFO(%r11)
15034+ orl $TS_COMPAT,TI_status(%r11)
15035+ testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags(%r11)
15036 jnz ia32_tracesys
15037 cmpq $(IA32_NR_syscalls-1),%rax
15038 ja ia32_badsys
15039@@ -458,6 +551,9 @@ ia32_tracesys:
15040 RESTORE_REST
15041 cmpq $(IA32_NR_syscalls-1),%rax
15042 ja int_ret_from_sys_call /* ia32_tracesys has set RAX(%rsp) */
15043+
15044+ pax_erase_kstack
15045+
15046 jmp ia32_do_call
15047 END(ia32_syscall)
15048
15049diff --git a/arch/x86/ia32/sys_ia32.c b/arch/x86/ia32/sys_ia32.c
15050index 8e0ceec..af13504 100644
15051--- a/arch/x86/ia32/sys_ia32.c
15052+++ b/arch/x86/ia32/sys_ia32.c
15053@@ -69,8 +69,8 @@ asmlinkage long sys32_ftruncate64(unsigned int fd, unsigned long offset_low,
15054 */
15055 static int cp_stat64(struct stat64 __user *ubuf, struct kstat *stat)
15056 {
15057- typeof(ubuf->st_uid) uid = 0;
15058- typeof(ubuf->st_gid) gid = 0;
15059+ typeof(((struct stat64 *)0)->st_uid) uid = 0;
15060+ typeof(((struct stat64 *)0)->st_gid) gid = 0;
15061 SET_UID(uid, from_kuid_munged(current_user_ns(), stat->uid));
15062 SET_GID(gid, from_kgid_munged(current_user_ns(), stat->gid));
15063 if (!access_ok(VERIFY_WRITE, ubuf, sizeof(struct stat64)) ||
15064diff --git a/arch/x86/include/asm/alternative-asm.h b/arch/x86/include/asm/alternative-asm.h
15065index 372231c..51b537d 100644
15066--- a/arch/x86/include/asm/alternative-asm.h
15067+++ b/arch/x86/include/asm/alternative-asm.h
15068@@ -18,6 +18,45 @@
15069 .endm
15070 #endif
15071
15072+#ifdef KERNEXEC_PLUGIN
15073+ .macro pax_force_retaddr_bts rip=0
15074+ btsq $63,\rip(%rsp)
15075+ .endm
15076+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_BTS
15077+ .macro pax_force_retaddr rip=0, reload=0
15078+ btsq $63,\rip(%rsp)
15079+ .endm
15080+ .macro pax_force_fptr ptr
15081+ btsq $63,\ptr
15082+ .endm
15083+ .macro pax_set_fptr_mask
15084+ .endm
15085+#endif
15086+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_OR
15087+ .macro pax_force_retaddr rip=0, reload=0
15088+ .if \reload
15089+ pax_set_fptr_mask
15090+ .endif
15091+ orq %r12,\rip(%rsp)
15092+ .endm
15093+ .macro pax_force_fptr ptr
15094+ orq %r12,\ptr
15095+ .endm
15096+ .macro pax_set_fptr_mask
15097+ movabs $0x8000000000000000,%r12
15098+ .endm
15099+#endif
15100+#else
15101+ .macro pax_force_retaddr rip=0, reload=0
15102+ .endm
15103+ .macro pax_force_fptr ptr
15104+ .endm
15105+ .macro pax_force_retaddr_bts rip=0
15106+ .endm
15107+ .macro pax_set_fptr_mask
15108+ .endm
15109+#endif
15110+
15111 .macro altinstruction_entry orig alt feature orig_len alt_len
15112 .long \orig - .
15113 .long \alt - .
15114diff --git a/arch/x86/include/asm/alternative.h b/arch/x86/include/asm/alternative.h
15115index 473bdbe..b1e3377 100644
15116--- a/arch/x86/include/asm/alternative.h
15117+++ b/arch/x86/include/asm/alternative.h
15118@@ -106,7 +106,7 @@ static inline int alternatives_text_reserved(void *start, void *end)
15119 ".pushsection .discard,\"aw\",@progbits\n" \
15120 DISCARD_ENTRY(1) \
15121 ".popsection\n" \
15122- ".pushsection .altinstr_replacement, \"ax\"\n" \
15123+ ".pushsection .altinstr_replacement, \"a\"\n" \
15124 ALTINSTR_REPLACEMENT(newinstr, feature, 1) \
15125 ".popsection"
15126
15127@@ -120,7 +120,7 @@ static inline int alternatives_text_reserved(void *start, void *end)
15128 DISCARD_ENTRY(1) \
15129 DISCARD_ENTRY(2) \
15130 ".popsection\n" \
15131- ".pushsection .altinstr_replacement, \"ax\"\n" \
15132+ ".pushsection .altinstr_replacement, \"a\"\n" \
15133 ALTINSTR_REPLACEMENT(newinstr1, feature1, 1) \
15134 ALTINSTR_REPLACEMENT(newinstr2, feature2, 2) \
15135 ".popsection"
15136diff --git a/arch/x86/include/asm/apic.h b/arch/x86/include/asm/apic.h
15137index efc3b22..85c4f3a 100644
15138--- a/arch/x86/include/asm/apic.h
15139+++ b/arch/x86/include/asm/apic.h
15140@@ -45,7 +45,7 @@ static inline void generic_apic_probe(void)
15141
15142 #ifdef CONFIG_X86_LOCAL_APIC
15143
15144-extern unsigned int apic_verbosity;
15145+extern int apic_verbosity;
15146 extern int local_apic_timer_c2_ok;
15147
15148 extern int disable_apic;
15149diff --git a/arch/x86/include/asm/apm.h b/arch/x86/include/asm/apm.h
15150index 20370c6..a2eb9b0 100644
15151--- a/arch/x86/include/asm/apm.h
15152+++ b/arch/x86/include/asm/apm.h
15153@@ -34,7 +34,7 @@ static inline void apm_bios_call_asm(u32 func, u32 ebx_in, u32 ecx_in,
15154 __asm__ __volatile__(APM_DO_ZERO_SEGS
15155 "pushl %%edi\n\t"
15156 "pushl %%ebp\n\t"
15157- "lcall *%%cs:apm_bios_entry\n\t"
15158+ "lcall *%%ss:apm_bios_entry\n\t"
15159 "setc %%al\n\t"
15160 "popl %%ebp\n\t"
15161 "popl %%edi\n\t"
15162@@ -58,7 +58,7 @@ static inline u8 apm_bios_call_simple_asm(u32 func, u32 ebx_in,
15163 __asm__ __volatile__(APM_DO_ZERO_SEGS
15164 "pushl %%edi\n\t"
15165 "pushl %%ebp\n\t"
15166- "lcall *%%cs:apm_bios_entry\n\t"
15167+ "lcall *%%ss:apm_bios_entry\n\t"
15168 "setc %%bl\n\t"
15169 "popl %%ebp\n\t"
15170 "popl %%edi\n\t"
15171diff --git a/arch/x86/include/asm/atomic.h b/arch/x86/include/asm/atomic.h
15172index 5e5cd12..51cdc93 100644
15173--- a/arch/x86/include/asm/atomic.h
15174+++ b/arch/x86/include/asm/atomic.h
15175@@ -28,6 +28,17 @@ static inline int atomic_read(const atomic_t *v)
15176 }
15177
15178 /**
15179+ * atomic_read_unchecked - read atomic variable
15180+ * @v: pointer of type atomic_unchecked_t
15181+ *
15182+ * Atomically reads the value of @v.
15183+ */
15184+static inline int __intentional_overflow(-1) atomic_read_unchecked(const atomic_unchecked_t *v)
15185+{
15186+ return ACCESS_ONCE((v)->counter);
15187+}
15188+
15189+/**
15190 * atomic_set - set atomic variable
15191 * @v: pointer of type atomic_t
15192 * @i: required value
15193@@ -40,6 +51,18 @@ static inline void atomic_set(atomic_t *v, int i)
15194 }
15195
15196 /**
15197+ * atomic_set_unchecked - set atomic variable
15198+ * @v: pointer of type atomic_unchecked_t
15199+ * @i: required value
15200+ *
15201+ * Atomically sets the value of @v to @i.
15202+ */
15203+static inline void atomic_set_unchecked(atomic_unchecked_t *v, int i)
15204+{
15205+ v->counter = i;
15206+}
15207+
15208+/**
15209 * atomic_add - add integer to atomic variable
15210 * @i: integer value to add
15211 * @v: pointer of type atomic_t
15212@@ -48,7 +71,29 @@ static inline void atomic_set(atomic_t *v, int i)
15213 */
15214 static inline void atomic_add(int i, atomic_t *v)
15215 {
15216- asm volatile(LOCK_PREFIX "addl %1,%0"
15217+ asm volatile(LOCK_PREFIX "addl %1,%0\n"
15218+
15219+#ifdef CONFIG_PAX_REFCOUNT
15220+ "jno 0f\n"
15221+ LOCK_PREFIX "subl %1,%0\n"
15222+ "int $4\n0:\n"
15223+ _ASM_EXTABLE(0b, 0b)
15224+#endif
15225+
15226+ : "+m" (v->counter)
15227+ : "ir" (i));
15228+}
15229+
15230+/**
15231+ * atomic_add_unchecked - add integer to atomic variable
15232+ * @i: integer value to add
15233+ * @v: pointer of type atomic_unchecked_t
15234+ *
15235+ * Atomically adds @i to @v.
15236+ */
15237+static inline void atomic_add_unchecked(int i, atomic_unchecked_t *v)
15238+{
15239+ asm volatile(LOCK_PREFIX "addl %1,%0\n"
15240 : "+m" (v->counter)
15241 : "ir" (i));
15242 }
15243@@ -62,7 +107,29 @@ static inline void atomic_add(int i, atomic_t *v)
15244 */
15245 static inline void atomic_sub(int i, atomic_t *v)
15246 {
15247- asm volatile(LOCK_PREFIX "subl %1,%0"
15248+ asm volatile(LOCK_PREFIX "subl %1,%0\n"
15249+
15250+#ifdef CONFIG_PAX_REFCOUNT
15251+ "jno 0f\n"
15252+ LOCK_PREFIX "addl %1,%0\n"
15253+ "int $4\n0:\n"
15254+ _ASM_EXTABLE(0b, 0b)
15255+#endif
15256+
15257+ : "+m" (v->counter)
15258+ : "ir" (i));
15259+}
15260+
15261+/**
15262+ * atomic_sub_unchecked - subtract integer from atomic variable
15263+ * @i: integer value to subtract
15264+ * @v: pointer of type atomic_unchecked_t
15265+ *
15266+ * Atomically subtracts @i from @v.
15267+ */
15268+static inline void atomic_sub_unchecked(int i, atomic_unchecked_t *v)
15269+{
15270+ asm volatile(LOCK_PREFIX "subl %1,%0\n"
15271 : "+m" (v->counter)
15272 : "ir" (i));
15273 }
15274@@ -78,7 +145,7 @@ static inline void atomic_sub(int i, atomic_t *v)
15275 */
15276 static inline int atomic_sub_and_test(int i, atomic_t *v)
15277 {
15278- GEN_BINARY_RMWcc(LOCK_PREFIX "subl", v->counter, "er", i, "%0", "e");
15279+ GEN_BINARY_RMWcc(LOCK_PREFIX "subl", LOCK_PREFIX "addl", v->counter, "er", i, "%0", "e");
15280 }
15281
15282 /**
15283@@ -89,7 +156,27 @@ static inline int atomic_sub_and_test(int i, atomic_t *v)
15284 */
15285 static inline void atomic_inc(atomic_t *v)
15286 {
15287- asm volatile(LOCK_PREFIX "incl %0"
15288+ asm volatile(LOCK_PREFIX "incl %0\n"
15289+
15290+#ifdef CONFIG_PAX_REFCOUNT
15291+ "jno 0f\n"
15292+ LOCK_PREFIX "decl %0\n"
15293+ "int $4\n0:\n"
15294+ _ASM_EXTABLE(0b, 0b)
15295+#endif
15296+
15297+ : "+m" (v->counter));
15298+}
15299+
15300+/**
15301+ * atomic_inc_unchecked - increment atomic variable
15302+ * @v: pointer of type atomic_unchecked_t
15303+ *
15304+ * Atomically increments @v by 1.
15305+ */
15306+static inline void atomic_inc_unchecked(atomic_unchecked_t *v)
15307+{
15308+ asm volatile(LOCK_PREFIX "incl %0\n"
15309 : "+m" (v->counter));
15310 }
15311
15312@@ -101,7 +188,27 @@ static inline void atomic_inc(atomic_t *v)
15313 */
15314 static inline void atomic_dec(atomic_t *v)
15315 {
15316- asm volatile(LOCK_PREFIX "decl %0"
15317+ asm volatile(LOCK_PREFIX "decl %0\n"
15318+
15319+#ifdef CONFIG_PAX_REFCOUNT
15320+ "jno 0f\n"
15321+ LOCK_PREFIX "incl %0\n"
15322+ "int $4\n0:\n"
15323+ _ASM_EXTABLE(0b, 0b)
15324+#endif
15325+
15326+ : "+m" (v->counter));
15327+}
15328+
15329+/**
15330+ * atomic_dec_unchecked - decrement atomic variable
15331+ * @v: pointer of type atomic_unchecked_t
15332+ *
15333+ * Atomically decrements @v by 1.
15334+ */
15335+static inline void atomic_dec_unchecked(atomic_unchecked_t *v)
15336+{
15337+ asm volatile(LOCK_PREFIX "decl %0\n"
15338 : "+m" (v->counter));
15339 }
15340
15341@@ -115,7 +222,7 @@ static inline void atomic_dec(atomic_t *v)
15342 */
15343 static inline int atomic_dec_and_test(atomic_t *v)
15344 {
15345- GEN_UNARY_RMWcc(LOCK_PREFIX "decl", v->counter, "%0", "e");
15346+ GEN_UNARY_RMWcc(LOCK_PREFIX "decl", LOCK_PREFIX "incl", v->counter, "%0", "e");
15347 }
15348
15349 /**
15350@@ -128,7 +235,20 @@ static inline int atomic_dec_and_test(atomic_t *v)
15351 */
15352 static inline int atomic_inc_and_test(atomic_t *v)
15353 {
15354- GEN_UNARY_RMWcc(LOCK_PREFIX "incl", v->counter, "%0", "e");
15355+ GEN_UNARY_RMWcc(LOCK_PREFIX "incl", LOCK_PREFIX "decl", v->counter, "%0", "e");
15356+}
15357+
15358+/**
15359+ * atomic_inc_and_test_unchecked - increment and test
15360+ * @v: pointer of type atomic_unchecked_t
15361+ *
15362+ * Atomically increments @v by 1
15363+ * and returns true if the result is zero, or false for all
15364+ * other cases.
15365+ */
15366+static inline int atomic_inc_and_test_unchecked(atomic_unchecked_t *v)
15367+{
15368+ GEN_UNARY_RMWcc_unchecked(LOCK_PREFIX "incl", v->counter, "%0", "e");
15369 }
15370
15371 /**
15372@@ -142,7 +262,7 @@ static inline int atomic_inc_and_test(atomic_t *v)
15373 */
15374 static inline int atomic_add_negative(int i, atomic_t *v)
15375 {
15376- GEN_BINARY_RMWcc(LOCK_PREFIX "addl", v->counter, "er", i, "%0", "s");
15377+ GEN_BINARY_RMWcc(LOCK_PREFIX "addl", LOCK_PREFIX "subl", v->counter, "er", i, "%0", "s");
15378 }
15379
15380 /**
15381@@ -152,7 +272,19 @@ static inline int atomic_add_negative(int i, atomic_t *v)
15382 *
15383 * Atomically adds @i to @v and returns @i + @v
15384 */
15385-static inline int atomic_add_return(int i, atomic_t *v)
15386+static inline int __intentional_overflow(-1) atomic_add_return(int i, atomic_t *v)
15387+{
15388+ return i + xadd_check_overflow(&v->counter, i);
15389+}
15390+
15391+/**
15392+ * atomic_add_return_unchecked - add integer and return
15393+ * @i: integer value to add
15394+ * @v: pointer of type atomic_unchecked_t
15395+ *
15396+ * Atomically adds @i to @v and returns @i + @v
15397+ */
15398+static inline int atomic_add_return_unchecked(int i, atomic_unchecked_t *v)
15399 {
15400 return i + xadd(&v->counter, i);
15401 }
15402@@ -164,15 +296,24 @@ static inline int atomic_add_return(int i, atomic_t *v)
15403 *
15404 * Atomically subtracts @i from @v and returns @v - @i
15405 */
15406-static inline int atomic_sub_return(int i, atomic_t *v)
15407+static inline int __intentional_overflow(-1) atomic_sub_return(int i, atomic_t *v)
15408 {
15409 return atomic_add_return(-i, v);
15410 }
15411
15412 #define atomic_inc_return(v) (atomic_add_return(1, v))
15413+static inline int atomic_inc_return_unchecked(atomic_unchecked_t *v)
15414+{
15415+ return atomic_add_return_unchecked(1, v);
15416+}
15417 #define atomic_dec_return(v) (atomic_sub_return(1, v))
15418
15419-static inline int atomic_cmpxchg(atomic_t *v, int old, int new)
15420+static inline int __intentional_overflow(-1) atomic_cmpxchg(atomic_t *v, int old, int new)
15421+{
15422+ return cmpxchg(&v->counter, old, new);
15423+}
15424+
15425+static inline int atomic_cmpxchg_unchecked(atomic_unchecked_t *v, int old, int new)
15426 {
15427 return cmpxchg(&v->counter, old, new);
15428 }
15429@@ -182,6 +323,11 @@ static inline int atomic_xchg(atomic_t *v, int new)
15430 return xchg(&v->counter, new);
15431 }
15432
15433+static inline int atomic_xchg_unchecked(atomic_unchecked_t *v, int new)
15434+{
15435+ return xchg(&v->counter, new);
15436+}
15437+
15438 /**
15439 * __atomic_add_unless - add unless the number is already a given value
15440 * @v: pointer of type atomic_t
15441@@ -193,12 +339,25 @@ static inline int atomic_xchg(atomic_t *v, int new)
15442 */
15443 static inline int __atomic_add_unless(atomic_t *v, int a, int u)
15444 {
15445- int c, old;
15446+ int c, old, new;
15447 c = atomic_read(v);
15448 for (;;) {
15449- if (unlikely(c == (u)))
15450+ if (unlikely(c == u))
15451 break;
15452- old = atomic_cmpxchg((v), c, c + (a));
15453+
15454+ asm volatile("addl %2,%0\n"
15455+
15456+#ifdef CONFIG_PAX_REFCOUNT
15457+ "jno 0f\n"
15458+ "subl %2,%0\n"
15459+ "int $4\n0:\n"
15460+ _ASM_EXTABLE(0b, 0b)
15461+#endif
15462+
15463+ : "=r" (new)
15464+ : "0" (c), "ir" (a));
15465+
15466+ old = atomic_cmpxchg(v, c, new);
15467 if (likely(old == c))
15468 break;
15469 c = old;
15470@@ -207,6 +366,49 @@ static inline int __atomic_add_unless(atomic_t *v, int a, int u)
15471 }
15472
15473 /**
15474+ * atomic_inc_not_zero_hint - increment if not null
15475+ * @v: pointer of type atomic_t
15476+ * @hint: probable value of the atomic before the increment
15477+ *
15478+ * This version of atomic_inc_not_zero() gives a hint of probable
15479+ * value of the atomic. This helps processor to not read the memory
15480+ * before doing the atomic read/modify/write cycle, lowering
15481+ * number of bus transactions on some arches.
15482+ *
15483+ * Returns: 0 if increment was not done, 1 otherwise.
15484+ */
15485+#define atomic_inc_not_zero_hint atomic_inc_not_zero_hint
15486+static inline int atomic_inc_not_zero_hint(atomic_t *v, int hint)
15487+{
15488+ int val, c = hint, new;
15489+
15490+ /* sanity test, should be removed by compiler if hint is a constant */
15491+ if (!hint)
15492+ return __atomic_add_unless(v, 1, 0);
15493+
15494+ do {
15495+ asm volatile("incl %0\n"
15496+
15497+#ifdef CONFIG_PAX_REFCOUNT
15498+ "jno 0f\n"
15499+ "decl %0\n"
15500+ "int $4\n0:\n"
15501+ _ASM_EXTABLE(0b, 0b)
15502+#endif
15503+
15504+ : "=r" (new)
15505+ : "0" (c));
15506+
15507+ val = atomic_cmpxchg(v, c, new);
15508+ if (val == c)
15509+ return 1;
15510+ c = val;
15511+ } while (c);
15512+
15513+ return 0;
15514+}
15515+
15516+/**
15517 * atomic_inc_short - increment of a short integer
15518 * @v: pointer to type int
15519 *
15520@@ -220,14 +422,37 @@ static inline short int atomic_inc_short(short int *v)
15521 }
15522
15523 /* These are x86-specific, used by some header files */
15524-#define atomic_clear_mask(mask, addr) \
15525- asm volatile(LOCK_PREFIX "andl %0,%1" \
15526- : : "r" (~(mask)), "m" (*(addr)) : "memory")
15527+static inline void atomic_clear_mask(unsigned int mask, atomic_t *v)
15528+{
15529+ asm volatile(LOCK_PREFIX "andl %1,%0"
15530+ : "+m" (v->counter)
15531+ : "r" (~(mask))
15532+ : "memory");
15533+}
15534
15535-#define atomic_set_mask(mask, addr) \
15536- asm volatile(LOCK_PREFIX "orl %0,%1" \
15537- : : "r" ((unsigned)(mask)), "m" (*(addr)) \
15538- : "memory")
15539+static inline void atomic_clear_mask_unchecked(unsigned int mask, atomic_unchecked_t *v)
15540+{
15541+ asm volatile(LOCK_PREFIX "andl %1,%0"
15542+ : "+m" (v->counter)
15543+ : "r" (~(mask))
15544+ : "memory");
15545+}
15546+
15547+static inline void atomic_set_mask(unsigned int mask, atomic_t *v)
15548+{
15549+ asm volatile(LOCK_PREFIX "orl %1,%0"
15550+ : "+m" (v->counter)
15551+ : "r" (mask)
15552+ : "memory");
15553+}
15554+
15555+static inline void atomic_set_mask_unchecked(unsigned int mask, atomic_unchecked_t *v)
15556+{
15557+ asm volatile(LOCK_PREFIX "orl %1,%0"
15558+ : "+m" (v->counter)
15559+ : "r" (mask)
15560+ : "memory");
15561+}
15562
15563 #ifdef CONFIG_X86_32
15564 # include <asm/atomic64_32.h>
15565diff --git a/arch/x86/include/asm/atomic64_32.h b/arch/x86/include/asm/atomic64_32.h
15566index b154de7..bf18a5a 100644
15567--- a/arch/x86/include/asm/atomic64_32.h
15568+++ b/arch/x86/include/asm/atomic64_32.h
15569@@ -12,6 +12,14 @@ typedef struct {
15570 u64 __aligned(8) counter;
15571 } atomic64_t;
15572
15573+#ifdef CONFIG_PAX_REFCOUNT
15574+typedef struct {
15575+ u64 __aligned(8) counter;
15576+} atomic64_unchecked_t;
15577+#else
15578+typedef atomic64_t atomic64_unchecked_t;
15579+#endif
15580+
15581 #define ATOMIC64_INIT(val) { (val) }
15582
15583 #define __ATOMIC64_DECL(sym) void atomic64_##sym(atomic64_t *, ...)
15584@@ -37,21 +45,31 @@ typedef struct {
15585 ATOMIC64_DECL_ONE(sym##_386)
15586
15587 ATOMIC64_DECL_ONE(add_386);
15588+ATOMIC64_DECL_ONE(add_unchecked_386);
15589 ATOMIC64_DECL_ONE(sub_386);
15590+ATOMIC64_DECL_ONE(sub_unchecked_386);
15591 ATOMIC64_DECL_ONE(inc_386);
15592+ATOMIC64_DECL_ONE(inc_unchecked_386);
15593 ATOMIC64_DECL_ONE(dec_386);
15594+ATOMIC64_DECL_ONE(dec_unchecked_386);
15595 #endif
15596
15597 #define alternative_atomic64(f, out, in...) \
15598 __alternative_atomic64(f, f, ASM_OUTPUT2(out), ## in)
15599
15600 ATOMIC64_DECL(read);
15601+ATOMIC64_DECL(read_unchecked);
15602 ATOMIC64_DECL(set);
15603+ATOMIC64_DECL(set_unchecked);
15604 ATOMIC64_DECL(xchg);
15605 ATOMIC64_DECL(add_return);
15606+ATOMIC64_DECL(add_return_unchecked);
15607 ATOMIC64_DECL(sub_return);
15608+ATOMIC64_DECL(sub_return_unchecked);
15609 ATOMIC64_DECL(inc_return);
15610+ATOMIC64_DECL(inc_return_unchecked);
15611 ATOMIC64_DECL(dec_return);
15612+ATOMIC64_DECL(dec_return_unchecked);
15613 ATOMIC64_DECL(dec_if_positive);
15614 ATOMIC64_DECL(inc_not_zero);
15615 ATOMIC64_DECL(add_unless);
15616@@ -77,6 +95,21 @@ static inline long long atomic64_cmpxchg(atomic64_t *v, long long o, long long n
15617 }
15618
15619 /**
15620+ * atomic64_cmpxchg_unchecked - cmpxchg atomic64 variable
15621+ * @p: pointer to type atomic64_unchecked_t
15622+ * @o: expected value
15623+ * @n: new value
15624+ *
15625+ * Atomically sets @v to @n if it was equal to @o and returns
15626+ * the old value.
15627+ */
15628+
15629+static inline long long atomic64_cmpxchg_unchecked(atomic64_unchecked_t *v, long long o, long long n)
15630+{
15631+ return cmpxchg64(&v->counter, o, n);
15632+}
15633+
15634+/**
15635 * atomic64_xchg - xchg atomic64 variable
15636 * @v: pointer to type atomic64_t
15637 * @n: value to assign
15638@@ -112,6 +145,22 @@ static inline void atomic64_set(atomic64_t *v, long long i)
15639 }
15640
15641 /**
15642+ * atomic64_set_unchecked - set atomic64 variable
15643+ * @v: pointer to type atomic64_unchecked_t
15644+ * @n: value to assign
15645+ *
15646+ * Atomically sets the value of @v to @n.
15647+ */
15648+static inline void atomic64_set_unchecked(atomic64_unchecked_t *v, long long i)
15649+{
15650+ unsigned high = (unsigned)(i >> 32);
15651+ unsigned low = (unsigned)i;
15652+ alternative_atomic64(set, /* no output */,
15653+ "S" (v), "b" (low), "c" (high)
15654+ : "eax", "edx", "memory");
15655+}
15656+
15657+/**
15658 * atomic64_read - read atomic64 variable
15659 * @v: pointer to type atomic64_t
15660 *
15661@@ -125,6 +174,19 @@ static inline long long atomic64_read(const atomic64_t *v)
15662 }
15663
15664 /**
15665+ * atomic64_read_unchecked - read atomic64 variable
15666+ * @v: pointer to type atomic64_unchecked_t
15667+ *
15668+ * Atomically reads the value of @v and returns it.
15669+ */
15670+static inline long long __intentional_overflow(-1) atomic64_read_unchecked(atomic64_unchecked_t *v)
15671+{
15672+ long long r;
15673+ alternative_atomic64(read, "=&A" (r), "c" (v) : "memory");
15674+ return r;
15675+ }
15676+
15677+/**
15678 * atomic64_add_return - add and return
15679 * @i: integer value to add
15680 * @v: pointer to type atomic64_t
15681@@ -139,6 +201,21 @@ static inline long long atomic64_add_return(long long i, atomic64_t *v)
15682 return i;
15683 }
15684
15685+/**
15686+ * atomic64_add_return_unchecked - add and return
15687+ * @i: integer value to add
15688+ * @v: pointer to type atomic64_unchecked_t
15689+ *
15690+ * Atomically adds @i to @v and returns @i + *@v
15691+ */
15692+static inline long long atomic64_add_return_unchecked(long long i, atomic64_unchecked_t *v)
15693+{
15694+ alternative_atomic64(add_return_unchecked,
15695+ ASM_OUTPUT2("+A" (i), "+c" (v)),
15696+ ASM_NO_INPUT_CLOBBER("memory"));
15697+ return i;
15698+}
15699+
15700 /*
15701 * Other variants with different arithmetic operators:
15702 */
15703@@ -158,6 +235,14 @@ static inline long long atomic64_inc_return(atomic64_t *v)
15704 return a;
15705 }
15706
15707+static inline long long atomic64_inc_return_unchecked(atomic64_unchecked_t *v)
15708+{
15709+ long long a;
15710+ alternative_atomic64(inc_return_unchecked, "=&A" (a),
15711+ "S" (v) : "memory", "ecx");
15712+ return a;
15713+}
15714+
15715 static inline long long atomic64_dec_return(atomic64_t *v)
15716 {
15717 long long a;
15718@@ -182,6 +267,21 @@ static inline long long atomic64_add(long long i, atomic64_t *v)
15719 }
15720
15721 /**
15722+ * atomic64_add_unchecked - add integer to atomic64 variable
15723+ * @i: integer value to add
15724+ * @v: pointer to type atomic64_unchecked_t
15725+ *
15726+ * Atomically adds @i to @v.
15727+ */
15728+static inline long long atomic64_add_unchecked(long long i, atomic64_unchecked_t *v)
15729+{
15730+ __alternative_atomic64(add_unchecked, add_return_unchecked,
15731+ ASM_OUTPUT2("+A" (i), "+c" (v)),
15732+ ASM_NO_INPUT_CLOBBER("memory"));
15733+ return i;
15734+}
15735+
15736+/**
15737 * atomic64_sub - subtract the atomic64 variable
15738 * @i: integer value to subtract
15739 * @v: pointer to type atomic64_t
15740diff --git a/arch/x86/include/asm/atomic64_64.h b/arch/x86/include/asm/atomic64_64.h
15741index f8d273e..02f39f3 100644
15742--- a/arch/x86/include/asm/atomic64_64.h
15743+++ b/arch/x86/include/asm/atomic64_64.h
15744@@ -22,6 +22,18 @@ static inline long atomic64_read(const atomic64_t *v)
15745 }
15746
15747 /**
15748+ * atomic64_read_unchecked - read atomic64 variable
15749+ * @v: pointer of type atomic64_unchecked_t
15750+ *
15751+ * Atomically reads the value of @v.
15752+ * Doesn't imply a read memory barrier.
15753+ */
15754+static inline long __intentional_overflow(-1) atomic64_read_unchecked(const atomic64_unchecked_t *v)
15755+{
15756+ return ACCESS_ONCE((v)->counter);
15757+}
15758+
15759+/**
15760 * atomic64_set - set atomic64 variable
15761 * @v: pointer to type atomic64_t
15762 * @i: required value
15763@@ -34,6 +46,18 @@ static inline void atomic64_set(atomic64_t *v, long i)
15764 }
15765
15766 /**
15767+ * atomic64_set_unchecked - set atomic64 variable
15768+ * @v: pointer to type atomic64_unchecked_t
15769+ * @i: required value
15770+ *
15771+ * Atomically sets the value of @v to @i.
15772+ */
15773+static inline void atomic64_set_unchecked(atomic64_unchecked_t *v, long i)
15774+{
15775+ v->counter = i;
15776+}
15777+
15778+/**
15779 * atomic64_add - add integer to atomic64 variable
15780 * @i: integer value to add
15781 * @v: pointer to type atomic64_t
15782@@ -42,6 +66,28 @@ static inline void atomic64_set(atomic64_t *v, long i)
15783 */
15784 static inline void atomic64_add(long i, atomic64_t *v)
15785 {
15786+ asm volatile(LOCK_PREFIX "addq %1,%0\n"
15787+
15788+#ifdef CONFIG_PAX_REFCOUNT
15789+ "jno 0f\n"
15790+ LOCK_PREFIX "subq %1,%0\n"
15791+ "int $4\n0:\n"
15792+ _ASM_EXTABLE(0b, 0b)
15793+#endif
15794+
15795+ : "=m" (v->counter)
15796+ : "er" (i), "m" (v->counter));
15797+}
15798+
15799+/**
15800+ * atomic64_add_unchecked - add integer to atomic64 variable
15801+ * @i: integer value to add
15802+ * @v: pointer to type atomic64_unchecked_t
15803+ *
15804+ * Atomically adds @i to @v.
15805+ */
15806+static inline void atomic64_add_unchecked(long i, atomic64_unchecked_t *v)
15807+{
15808 asm volatile(LOCK_PREFIX "addq %1,%0"
15809 : "=m" (v->counter)
15810 : "er" (i), "m" (v->counter));
15811@@ -56,7 +102,29 @@ static inline void atomic64_add(long i, atomic64_t *v)
15812 */
15813 static inline void atomic64_sub(long i, atomic64_t *v)
15814 {
15815- asm volatile(LOCK_PREFIX "subq %1,%0"
15816+ asm volatile(LOCK_PREFIX "subq %1,%0\n"
15817+
15818+#ifdef CONFIG_PAX_REFCOUNT
15819+ "jno 0f\n"
15820+ LOCK_PREFIX "addq %1,%0\n"
15821+ "int $4\n0:\n"
15822+ _ASM_EXTABLE(0b, 0b)
15823+#endif
15824+
15825+ : "=m" (v->counter)
15826+ : "er" (i), "m" (v->counter));
15827+}
15828+
15829+/**
15830+ * atomic64_sub_unchecked - subtract the atomic64 variable
15831+ * @i: integer value to subtract
15832+ * @v: pointer to type atomic64_unchecked_t
15833+ *
15834+ * Atomically subtracts @i from @v.
15835+ */
15836+static inline void atomic64_sub_unchecked(long i, atomic64_unchecked_t *v)
15837+{
15838+ asm volatile(LOCK_PREFIX "subq %1,%0\n"
15839 : "=m" (v->counter)
15840 : "er" (i), "m" (v->counter));
15841 }
15842@@ -72,7 +140,7 @@ static inline void atomic64_sub(long i, atomic64_t *v)
15843 */
15844 static inline int atomic64_sub_and_test(long i, atomic64_t *v)
15845 {
15846- GEN_BINARY_RMWcc(LOCK_PREFIX "subq", v->counter, "er", i, "%0", "e");
15847+ GEN_BINARY_RMWcc(LOCK_PREFIX "subq", LOCK_PREFIX "addq", v->counter, "er", i, "%0", "e");
15848 }
15849
15850 /**
15851@@ -83,6 +151,27 @@ static inline int atomic64_sub_and_test(long i, atomic64_t *v)
15852 */
15853 static inline void atomic64_inc(atomic64_t *v)
15854 {
15855+ asm volatile(LOCK_PREFIX "incq %0\n"
15856+
15857+#ifdef CONFIG_PAX_REFCOUNT
15858+ "jno 0f\n"
15859+ LOCK_PREFIX "decq %0\n"
15860+ "int $4\n0:\n"
15861+ _ASM_EXTABLE(0b, 0b)
15862+#endif
15863+
15864+ : "=m" (v->counter)
15865+ : "m" (v->counter));
15866+}
15867+
15868+/**
15869+ * atomic64_inc_unchecked - increment atomic64 variable
15870+ * @v: pointer to type atomic64_unchecked_t
15871+ *
15872+ * Atomically increments @v by 1.
15873+ */
15874+static inline void atomic64_inc_unchecked(atomic64_unchecked_t *v)
15875+{
15876 asm volatile(LOCK_PREFIX "incq %0"
15877 : "=m" (v->counter)
15878 : "m" (v->counter));
15879@@ -96,7 +185,28 @@ static inline void atomic64_inc(atomic64_t *v)
15880 */
15881 static inline void atomic64_dec(atomic64_t *v)
15882 {
15883- asm volatile(LOCK_PREFIX "decq %0"
15884+ asm volatile(LOCK_PREFIX "decq %0\n"
15885+
15886+#ifdef CONFIG_PAX_REFCOUNT
15887+ "jno 0f\n"
15888+ LOCK_PREFIX "incq %0\n"
15889+ "int $4\n0:\n"
15890+ _ASM_EXTABLE(0b, 0b)
15891+#endif
15892+
15893+ : "=m" (v->counter)
15894+ : "m" (v->counter));
15895+}
15896+
15897+/**
15898+ * atomic64_dec_unchecked - decrement atomic64 variable
15899+ * @v: pointer to type atomic64_t
15900+ *
15901+ * Atomically decrements @v by 1.
15902+ */
15903+static inline void atomic64_dec_unchecked(atomic64_unchecked_t *v)
15904+{
15905+ asm volatile(LOCK_PREFIX "decq %0\n"
15906 : "=m" (v->counter)
15907 : "m" (v->counter));
15908 }
15909@@ -111,7 +221,7 @@ static inline void atomic64_dec(atomic64_t *v)
15910 */
15911 static inline int atomic64_dec_and_test(atomic64_t *v)
15912 {
15913- GEN_UNARY_RMWcc(LOCK_PREFIX "decq", v->counter, "%0", "e");
15914+ GEN_UNARY_RMWcc(LOCK_PREFIX "decq", LOCK_PREFIX "incq", v->counter, "%0", "e");
15915 }
15916
15917 /**
15918@@ -124,7 +234,7 @@ static inline int atomic64_dec_and_test(atomic64_t *v)
15919 */
15920 static inline int atomic64_inc_and_test(atomic64_t *v)
15921 {
15922- GEN_UNARY_RMWcc(LOCK_PREFIX "incq", v->counter, "%0", "e");
15923+ GEN_UNARY_RMWcc(LOCK_PREFIX "incq", LOCK_PREFIX "decq", v->counter, "%0", "e");
15924 }
15925
15926 /**
15927@@ -138,7 +248,7 @@ static inline int atomic64_inc_and_test(atomic64_t *v)
15928 */
15929 static inline int atomic64_add_negative(long i, atomic64_t *v)
15930 {
15931- GEN_BINARY_RMWcc(LOCK_PREFIX "addq", v->counter, "er", i, "%0", "s");
15932+ GEN_BINARY_RMWcc(LOCK_PREFIX "addq", LOCK_PREFIX "subq", v->counter, "er", i, "%0", "s");
15933 }
15934
15935 /**
15936@@ -150,6 +260,18 @@ static inline int atomic64_add_negative(long i, atomic64_t *v)
15937 */
15938 static inline long atomic64_add_return(long i, atomic64_t *v)
15939 {
15940+ return i + xadd_check_overflow(&v->counter, i);
15941+}
15942+
15943+/**
15944+ * atomic64_add_return_unchecked - add and return
15945+ * @i: integer value to add
15946+ * @v: pointer to type atomic64_unchecked_t
15947+ *
15948+ * Atomically adds @i to @v and returns @i + @v
15949+ */
15950+static inline long atomic64_add_return_unchecked(long i, atomic64_unchecked_t *v)
15951+{
15952 return i + xadd(&v->counter, i);
15953 }
15954
15955@@ -159,6 +281,10 @@ static inline long atomic64_sub_return(long i, atomic64_t *v)
15956 }
15957
15958 #define atomic64_inc_return(v) (atomic64_add_return(1, (v)))
15959+static inline long atomic64_inc_return_unchecked(atomic64_unchecked_t *v)
15960+{
15961+ return atomic64_add_return_unchecked(1, v);
15962+}
15963 #define atomic64_dec_return(v) (atomic64_sub_return(1, (v)))
15964
15965 static inline long atomic64_cmpxchg(atomic64_t *v, long old, long new)
15966@@ -166,6 +292,11 @@ static inline long atomic64_cmpxchg(atomic64_t *v, long old, long new)
15967 return cmpxchg(&v->counter, old, new);
15968 }
15969
15970+static inline long atomic64_cmpxchg_unchecked(atomic64_unchecked_t *v, long old, long new)
15971+{
15972+ return cmpxchg(&v->counter, old, new);
15973+}
15974+
15975 static inline long atomic64_xchg(atomic64_t *v, long new)
15976 {
15977 return xchg(&v->counter, new);
15978@@ -182,17 +313,30 @@ static inline long atomic64_xchg(atomic64_t *v, long new)
15979 */
15980 static inline int atomic64_add_unless(atomic64_t *v, long a, long u)
15981 {
15982- long c, old;
15983+ long c, old, new;
15984 c = atomic64_read(v);
15985 for (;;) {
15986- if (unlikely(c == (u)))
15987+ if (unlikely(c == u))
15988 break;
15989- old = atomic64_cmpxchg((v), c, c + (a));
15990+
15991+ asm volatile("add %2,%0\n"
15992+
15993+#ifdef CONFIG_PAX_REFCOUNT
15994+ "jno 0f\n"
15995+ "sub %2,%0\n"
15996+ "int $4\n0:\n"
15997+ _ASM_EXTABLE(0b, 0b)
15998+#endif
15999+
16000+ : "=r" (new)
16001+ : "0" (c), "ir" (a));
16002+
16003+ old = atomic64_cmpxchg(v, c, new);
16004 if (likely(old == c))
16005 break;
16006 c = old;
16007 }
16008- return c != (u);
16009+ return c != u;
16010 }
16011
16012 #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
16013diff --git a/arch/x86/include/asm/barrier.h b/arch/x86/include/asm/barrier.h
16014index 2ab1eb3..1e8cc5d 100644
16015--- a/arch/x86/include/asm/barrier.h
16016+++ b/arch/x86/include/asm/barrier.h
16017@@ -57,7 +57,7 @@
16018 do { \
16019 compiletime_assert_atomic_type(*p); \
16020 smp_mb(); \
16021- ACCESS_ONCE(*p) = (v); \
16022+ ACCESS_ONCE_RW(*p) = (v); \
16023 } while (0)
16024
16025 #define smp_load_acquire(p) \
16026@@ -74,7 +74,7 @@ do { \
16027 do { \
16028 compiletime_assert_atomic_type(*p); \
16029 barrier(); \
16030- ACCESS_ONCE(*p) = (v); \
16031+ ACCESS_ONCE_RW(*p) = (v); \
16032 } while (0)
16033
16034 #define smp_load_acquire(p) \
16035diff --git a/arch/x86/include/asm/bitops.h b/arch/x86/include/asm/bitops.h
16036index cfe3b95..d01b118 100644
16037--- a/arch/x86/include/asm/bitops.h
16038+++ b/arch/x86/include/asm/bitops.h
16039@@ -50,7 +50,7 @@
16040 * a mask operation on a byte.
16041 */
16042 #define IS_IMMEDIATE(nr) (__builtin_constant_p(nr))
16043-#define CONST_MASK_ADDR(nr, addr) BITOP_ADDR((void *)(addr) + ((nr)>>3))
16044+#define CONST_MASK_ADDR(nr, addr) BITOP_ADDR((volatile void *)(addr) + ((nr)>>3))
16045 #define CONST_MASK(nr) (1 << ((nr) & 7))
16046
16047 /**
16048@@ -203,7 +203,7 @@ static inline void change_bit(long nr, volatile unsigned long *addr)
16049 */
16050 static inline int test_and_set_bit(long nr, volatile unsigned long *addr)
16051 {
16052- GEN_BINARY_RMWcc(LOCK_PREFIX "bts", *addr, "Ir", nr, "%0", "c");
16053+ GEN_BINARY_RMWcc_unchecked(LOCK_PREFIX "bts", *addr, "Ir", nr, "%0", "c");
16054 }
16055
16056 /**
16057@@ -249,7 +249,7 @@ static inline int __test_and_set_bit(long nr, volatile unsigned long *addr)
16058 */
16059 static inline int test_and_clear_bit(long nr, volatile unsigned long *addr)
16060 {
16061- GEN_BINARY_RMWcc(LOCK_PREFIX "btr", *addr, "Ir", nr, "%0", "c");
16062+ GEN_BINARY_RMWcc_unchecked(LOCK_PREFIX "btr", *addr, "Ir", nr, "%0", "c");
16063 }
16064
16065 /**
16066@@ -302,7 +302,7 @@ static inline int __test_and_change_bit(long nr, volatile unsigned long *addr)
16067 */
16068 static inline int test_and_change_bit(long nr, volatile unsigned long *addr)
16069 {
16070- GEN_BINARY_RMWcc(LOCK_PREFIX "btc", *addr, "Ir", nr, "%0", "c");
16071+ GEN_BINARY_RMWcc_unchecked(LOCK_PREFIX "btc", *addr, "Ir", nr, "%0", "c");
16072 }
16073
16074 static __always_inline int constant_test_bit(long nr, const volatile unsigned long *addr)
16075@@ -343,7 +343,7 @@ static int test_bit(int nr, const volatile unsigned long *addr);
16076 *
16077 * Undefined if no bit exists, so code should check against 0 first.
16078 */
16079-static inline unsigned long __ffs(unsigned long word)
16080+static inline unsigned long __intentional_overflow(-1) __ffs(unsigned long word)
16081 {
16082 asm("rep; bsf %1,%0"
16083 : "=r" (word)
16084@@ -357,7 +357,7 @@ static inline unsigned long __ffs(unsigned long word)
16085 *
16086 * Undefined if no zero exists, so code should check against ~0UL first.
16087 */
16088-static inline unsigned long ffz(unsigned long word)
16089+static inline unsigned long __intentional_overflow(-1) ffz(unsigned long word)
16090 {
16091 asm("rep; bsf %1,%0"
16092 : "=r" (word)
16093@@ -371,7 +371,7 @@ static inline unsigned long ffz(unsigned long word)
16094 *
16095 * Undefined if no set bit exists, so code should check against 0 first.
16096 */
16097-static inline unsigned long __fls(unsigned long word)
16098+static inline unsigned long __intentional_overflow(-1) __fls(unsigned long word)
16099 {
16100 asm("bsr %1,%0"
16101 : "=r" (word)
16102@@ -434,7 +434,7 @@ static inline int ffs(int x)
16103 * set bit if value is nonzero. The last (most significant) bit is
16104 * at position 32.
16105 */
16106-static inline int fls(int x)
16107+static inline int __intentional_overflow(-1) fls(int x)
16108 {
16109 int r;
16110
16111@@ -476,7 +476,7 @@ static inline int fls(int x)
16112 * at position 64.
16113 */
16114 #ifdef CONFIG_X86_64
16115-static __always_inline int fls64(__u64 x)
16116+static __always_inline __intentional_overflow(-1) int fls64(__u64 x)
16117 {
16118 int bitpos = -1;
16119 /*
16120diff --git a/arch/x86/include/asm/boot.h b/arch/x86/include/asm/boot.h
16121index 4fa687a..60f2d39 100644
16122--- a/arch/x86/include/asm/boot.h
16123+++ b/arch/x86/include/asm/boot.h
16124@@ -6,10 +6,15 @@
16125 #include <uapi/asm/boot.h>
16126
16127 /* Physical address where kernel should be loaded. */
16128-#define LOAD_PHYSICAL_ADDR ((CONFIG_PHYSICAL_START \
16129+#define ____LOAD_PHYSICAL_ADDR ((CONFIG_PHYSICAL_START \
16130 + (CONFIG_PHYSICAL_ALIGN - 1)) \
16131 & ~(CONFIG_PHYSICAL_ALIGN - 1))
16132
16133+#ifndef __ASSEMBLY__
16134+extern unsigned char __LOAD_PHYSICAL_ADDR[];
16135+#define LOAD_PHYSICAL_ADDR ((unsigned long)__LOAD_PHYSICAL_ADDR)
16136+#endif
16137+
16138 /* Minimum kernel alignment, as a power of two */
16139 #ifdef CONFIG_X86_64
16140 #define MIN_KERNEL_ALIGN_LG2 PMD_SHIFT
16141diff --git a/arch/x86/include/asm/cache.h b/arch/x86/include/asm/cache.h
16142index 48f99f1..d78ebf9 100644
16143--- a/arch/x86/include/asm/cache.h
16144+++ b/arch/x86/include/asm/cache.h
16145@@ -5,12 +5,13 @@
16146
16147 /* L1 cache line size */
16148 #define L1_CACHE_SHIFT (CONFIG_X86_L1_CACHE_SHIFT)
16149-#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
16150+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
16151
16152 #define __read_mostly __attribute__((__section__(".data..read_mostly")))
16153+#define __read_only __attribute__((__section__(".data..read_only")))
16154
16155 #define INTERNODE_CACHE_SHIFT CONFIG_X86_INTERNODE_CACHE_SHIFT
16156-#define INTERNODE_CACHE_BYTES (1 << INTERNODE_CACHE_SHIFT)
16157+#define INTERNODE_CACHE_BYTES (_AC(1,UL) << INTERNODE_CACHE_SHIFT)
16158
16159 #ifdef CONFIG_X86_VSMP
16160 #ifdef CONFIG_SMP
16161diff --git a/arch/x86/include/asm/calling.h b/arch/x86/include/asm/calling.h
16162index 1f1297b..72b8439 100644
16163--- a/arch/x86/include/asm/calling.h
16164+++ b/arch/x86/include/asm/calling.h
16165@@ -82,106 +82,117 @@ For 32-bit we have the following conventions - kernel is built with
16166 #define RSP 152
16167 #define SS 160
16168
16169-#define ARGOFFSET R11
16170+#define ARGOFFSET R15
16171
16172 .macro SAVE_ARGS addskip=0, save_rcx=1, save_r891011=1, rax_enosys=0
16173- subq $9*8+\addskip, %rsp
16174- CFI_ADJUST_CFA_OFFSET 9*8+\addskip
16175- movq_cfi rdi, 8*8
16176- movq_cfi rsi, 7*8
16177- movq_cfi rdx, 6*8
16178+ subq $ORIG_RAX-ARGOFFSET+\addskip, %rsp
16179+ CFI_ADJUST_CFA_OFFSET ORIG_RAX-ARGOFFSET+\addskip
16180+ movq_cfi rdi, RDI
16181+ movq_cfi rsi, RSI
16182+ movq_cfi rdx, RDX
16183
16184 .if \save_rcx
16185- movq_cfi rcx, 5*8
16186+ movq_cfi rcx, RCX
16187 .endif
16188
16189 .if \rax_enosys
16190- movq $-ENOSYS, 4*8(%rsp)
16191+ movq $-ENOSYS, RAX(%rsp)
16192 .else
16193- movq_cfi rax, 4*8
16194+ movq_cfi rax, RAX
16195 .endif
16196
16197 .if \save_r891011
16198- movq_cfi r8, 3*8
16199- movq_cfi r9, 2*8
16200- movq_cfi r10, 1*8
16201- movq_cfi r11, 0*8
16202+ movq_cfi r8, R8
16203+ movq_cfi r9, R9
16204+ movq_cfi r10, R10
16205+ movq_cfi r11, R11
16206 .endif
16207
16208+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_OR
16209+ movq_cfi r12, R12
16210+#endif
16211+
16212 .endm
16213
16214-#define ARG_SKIP (9*8)
16215+#define ARG_SKIP ORIG_RAX
16216
16217 .macro RESTORE_ARGS rstor_rax=1, addskip=0, rstor_rcx=1, rstor_r11=1, \
16218 rstor_r8910=1, rstor_rdx=1
16219+
16220+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_OR
16221+ movq_cfi_restore R12, r12
16222+#endif
16223+
16224 .if \rstor_r11
16225- movq_cfi_restore 0*8, r11
16226+ movq_cfi_restore R11, r11
16227 .endif
16228
16229 .if \rstor_r8910
16230- movq_cfi_restore 1*8, r10
16231- movq_cfi_restore 2*8, r9
16232- movq_cfi_restore 3*8, r8
16233+ movq_cfi_restore R10, r10
16234+ movq_cfi_restore R9, r9
16235+ movq_cfi_restore R8, r8
16236 .endif
16237
16238 .if \rstor_rax
16239- movq_cfi_restore 4*8, rax
16240+ movq_cfi_restore RAX, rax
16241 .endif
16242
16243 .if \rstor_rcx
16244- movq_cfi_restore 5*8, rcx
16245+ movq_cfi_restore RCX, rcx
16246 .endif
16247
16248 .if \rstor_rdx
16249- movq_cfi_restore 6*8, rdx
16250+ movq_cfi_restore RDX, rdx
16251 .endif
16252
16253- movq_cfi_restore 7*8, rsi
16254- movq_cfi_restore 8*8, rdi
16255+ movq_cfi_restore RSI, rsi
16256+ movq_cfi_restore RDI, rdi
16257
16258- .if ARG_SKIP+\addskip > 0
16259- addq $ARG_SKIP+\addskip, %rsp
16260- CFI_ADJUST_CFA_OFFSET -(ARG_SKIP+\addskip)
16261+ .if ORIG_RAX+\addskip > 0
16262+ addq $ORIG_RAX+\addskip, %rsp
16263+ CFI_ADJUST_CFA_OFFSET -(ORIG_RAX+\addskip)
16264 .endif
16265 .endm
16266
16267- .macro LOAD_ARGS offset, skiprax=0
16268- movq \offset(%rsp), %r11
16269- movq \offset+8(%rsp), %r10
16270- movq \offset+16(%rsp), %r9
16271- movq \offset+24(%rsp), %r8
16272- movq \offset+40(%rsp), %rcx
16273- movq \offset+48(%rsp), %rdx
16274- movq \offset+56(%rsp), %rsi
16275- movq \offset+64(%rsp), %rdi
16276+ .macro LOAD_ARGS skiprax=0
16277+ movq R11(%rsp), %r11
16278+ movq R10(%rsp), %r10
16279+ movq R9(%rsp), %r9
16280+ movq R8(%rsp), %r8
16281+ movq RCX(%rsp), %rcx
16282+ movq RDX(%rsp), %rdx
16283+ movq RSI(%rsp), %rsi
16284+ movq RDI(%rsp), %rdi
16285 .if \skiprax
16286 .else
16287- movq \offset+72(%rsp), %rax
16288+ movq ORIG_RAX(%rsp), %rax
16289 .endif
16290 .endm
16291
16292-#define REST_SKIP (6*8)
16293-
16294 .macro SAVE_REST
16295- subq $REST_SKIP, %rsp
16296- CFI_ADJUST_CFA_OFFSET REST_SKIP
16297- movq_cfi rbx, 5*8
16298- movq_cfi rbp, 4*8
16299- movq_cfi r12, 3*8
16300- movq_cfi r13, 2*8
16301- movq_cfi r14, 1*8
16302- movq_cfi r15, 0*8
16303+ movq_cfi rbx, RBX
16304+ movq_cfi rbp, RBP
16305+
16306+#ifndef CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_OR
16307+ movq_cfi r12, R12
16308+#endif
16309+
16310+ movq_cfi r13, R13
16311+ movq_cfi r14, R14
16312+ movq_cfi r15, R15
16313 .endm
16314
16315 .macro RESTORE_REST
16316- movq_cfi_restore 0*8, r15
16317- movq_cfi_restore 1*8, r14
16318- movq_cfi_restore 2*8, r13
16319- movq_cfi_restore 3*8, r12
16320- movq_cfi_restore 4*8, rbp
16321- movq_cfi_restore 5*8, rbx
16322- addq $REST_SKIP, %rsp
16323- CFI_ADJUST_CFA_OFFSET -(REST_SKIP)
16324+ movq_cfi_restore R15, r15
16325+ movq_cfi_restore R14, r14
16326+ movq_cfi_restore R13, r13
16327+
16328+#ifndef CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_OR
16329+ movq_cfi_restore R12, r12
16330+#endif
16331+
16332+ movq_cfi_restore RBP, rbp
16333+ movq_cfi_restore RBX, rbx
16334 .endm
16335
16336 .macro SAVE_ALL
16337diff --git a/arch/x86/include/asm/checksum_32.h b/arch/x86/include/asm/checksum_32.h
16338index f50de69..2b0a458 100644
16339--- a/arch/x86/include/asm/checksum_32.h
16340+++ b/arch/x86/include/asm/checksum_32.h
16341@@ -31,6 +31,14 @@ asmlinkage __wsum csum_partial_copy_generic(const void *src, void *dst,
16342 int len, __wsum sum,
16343 int *src_err_ptr, int *dst_err_ptr);
16344
16345+asmlinkage __wsum csum_partial_copy_generic_to_user(const void *src, void *dst,
16346+ int len, __wsum sum,
16347+ int *src_err_ptr, int *dst_err_ptr);
16348+
16349+asmlinkage __wsum csum_partial_copy_generic_from_user(const void *src, void *dst,
16350+ int len, __wsum sum,
16351+ int *src_err_ptr, int *dst_err_ptr);
16352+
16353 /*
16354 * Note: when you get a NULL pointer exception here this means someone
16355 * passed in an incorrect kernel address to one of these functions.
16356@@ -53,7 +61,7 @@ static inline __wsum csum_partial_copy_from_user(const void __user *src,
16357
16358 might_sleep();
16359 stac();
16360- ret = csum_partial_copy_generic((__force void *)src, dst,
16361+ ret = csum_partial_copy_generic_from_user((__force void *)src, dst,
16362 len, sum, err_ptr, NULL);
16363 clac();
16364
16365@@ -187,7 +195,7 @@ static inline __wsum csum_and_copy_to_user(const void *src,
16366 might_sleep();
16367 if (access_ok(VERIFY_WRITE, dst, len)) {
16368 stac();
16369- ret = csum_partial_copy_generic(src, (__force void *)dst,
16370+ ret = csum_partial_copy_generic_to_user(src, (__force void *)dst,
16371 len, sum, NULL, err_ptr);
16372 clac();
16373 return ret;
16374diff --git a/arch/x86/include/asm/cmpxchg.h b/arch/x86/include/asm/cmpxchg.h
16375index 99c105d7..2f667ac 100644
16376--- a/arch/x86/include/asm/cmpxchg.h
16377+++ b/arch/x86/include/asm/cmpxchg.h
16378@@ -16,8 +16,12 @@ extern void __cmpxchg_wrong_size(void)
16379 __compiletime_error("Bad argument size for cmpxchg");
16380 extern void __xadd_wrong_size(void)
16381 __compiletime_error("Bad argument size for xadd");
16382+extern void __xadd_check_overflow_wrong_size(void)
16383+ __compiletime_error("Bad argument size for xadd_check_overflow");
16384 extern void __add_wrong_size(void)
16385 __compiletime_error("Bad argument size for add");
16386+extern void __add_check_overflow_wrong_size(void)
16387+ __compiletime_error("Bad argument size for add_check_overflow");
16388
16389 /*
16390 * Constants for operation sizes. On 32-bit, the 64-bit size it set to
16391@@ -69,6 +73,38 @@ extern void __add_wrong_size(void)
16392 __ret; \
16393 })
16394
16395+#ifdef CONFIG_PAX_REFCOUNT
16396+#define __xchg_op_check_overflow(ptr, arg, op, lock) \
16397+ ({ \
16398+ __typeof__ (*(ptr)) __ret = (arg); \
16399+ switch (sizeof(*(ptr))) { \
16400+ case __X86_CASE_L: \
16401+ asm volatile (lock #op "l %0, %1\n" \
16402+ "jno 0f\n" \
16403+ "mov %0,%1\n" \
16404+ "int $4\n0:\n" \
16405+ _ASM_EXTABLE(0b, 0b) \
16406+ : "+r" (__ret), "+m" (*(ptr)) \
16407+ : : "memory", "cc"); \
16408+ break; \
16409+ case __X86_CASE_Q: \
16410+ asm volatile (lock #op "q %q0, %1\n" \
16411+ "jno 0f\n" \
16412+ "mov %0,%1\n" \
16413+ "int $4\n0:\n" \
16414+ _ASM_EXTABLE(0b, 0b) \
16415+ : "+r" (__ret), "+m" (*(ptr)) \
16416+ : : "memory", "cc"); \
16417+ break; \
16418+ default: \
16419+ __ ## op ## _check_overflow_wrong_size(); \
16420+ } \
16421+ __ret; \
16422+ })
16423+#else
16424+#define __xchg_op_check_overflow(ptr, arg, op, lock) __xchg_op(ptr, arg, op, lock)
16425+#endif
16426+
16427 /*
16428 * Note: no "lock" prefix even on SMP: xchg always implies lock anyway.
16429 * Since this is generally used to protect other memory information, we
16430@@ -167,6 +203,9 @@ extern void __add_wrong_size(void)
16431 #define xadd_sync(ptr, inc) __xadd((ptr), (inc), "lock; ")
16432 #define xadd_local(ptr, inc) __xadd((ptr), (inc), "")
16433
16434+#define __xadd_check_overflow(ptr, inc, lock) __xchg_op_check_overflow((ptr), (inc), xadd, lock)
16435+#define xadd_check_overflow(ptr, inc) __xadd_check_overflow((ptr), (inc), LOCK_PREFIX)
16436+
16437 #define __add(ptr, inc, lock) \
16438 ({ \
16439 __typeof__ (*(ptr)) __ret = (inc); \
16440diff --git a/arch/x86/include/asm/compat.h b/arch/x86/include/asm/compat.h
16441index 59c6c40..5e0b22c 100644
16442--- a/arch/x86/include/asm/compat.h
16443+++ b/arch/x86/include/asm/compat.h
16444@@ -41,7 +41,7 @@ typedef s64 __attribute__((aligned(4))) compat_s64;
16445 typedef u32 compat_uint_t;
16446 typedef u32 compat_ulong_t;
16447 typedef u64 __attribute__((aligned(4))) compat_u64;
16448-typedef u32 compat_uptr_t;
16449+typedef u32 __user compat_uptr_t;
16450
16451 struct compat_timespec {
16452 compat_time_t tv_sec;
16453diff --git a/arch/x86/include/asm/cpufeature.h b/arch/x86/include/asm/cpufeature.h
16454index 90a5485..43b6211 100644
16455--- a/arch/x86/include/asm/cpufeature.h
16456+++ b/arch/x86/include/asm/cpufeature.h
16457@@ -213,7 +213,7 @@
16458 #define X86_FEATURE_PAUSEFILTER ( 8*32+13) /* AMD filtered pause intercept */
16459 #define X86_FEATURE_PFTHRESHOLD ( 8*32+14) /* AMD pause filter threshold */
16460 #define X86_FEATURE_VMMCALL ( 8*32+15) /* Prefer vmmcall to vmcall */
16461-
16462+#define X86_FEATURE_STRONGUDEREF (8*32+31) /* PaX PCID based strong UDEREF */
16463
16464 /* Intel-defined CPU features, CPUID level 0x00000007:0 (ebx), word 9 */
16465 #define X86_FEATURE_FSGSBASE ( 9*32+ 0) /* {RD/WR}{FS/GS}BASE instructions*/
16466@@ -221,7 +221,7 @@
16467 #define X86_FEATURE_BMI1 ( 9*32+ 3) /* 1st group bit manipulation extensions */
16468 #define X86_FEATURE_HLE ( 9*32+ 4) /* Hardware Lock Elision */
16469 #define X86_FEATURE_AVX2 ( 9*32+ 5) /* AVX2 instructions */
16470-#define X86_FEATURE_SMEP ( 9*32+ 7) /* Supervisor Mode Execution Protection */
16471+#define X86_FEATURE_SMEP ( 9*32+ 7) /* Supervisor Mode Execution Prevention */
16472 #define X86_FEATURE_BMI2 ( 9*32+ 8) /* 2nd group bit manipulation extensions */
16473 #define X86_FEATURE_ERMS ( 9*32+ 9) /* Enhanced REP MOVSB/STOSB */
16474 #define X86_FEATURE_INVPCID ( 9*32+10) /* Invalidate Processor Context ID */
16475@@ -390,6 +390,7 @@ extern const char * const x86_bug_flags[NBUGINTS*32];
16476 #define cpu_has_eager_fpu boot_cpu_has(X86_FEATURE_EAGER_FPU)
16477 #define cpu_has_topoext boot_cpu_has(X86_FEATURE_TOPOEXT)
16478 #define cpu_has_bpext boot_cpu_has(X86_FEATURE_BPEXT)
16479+#define cpu_has_pcid boot_cpu_has(X86_FEATURE_PCID)
16480
16481 #if __GNUC__ >= 4
16482 extern void warn_pre_alternatives(void);
16483@@ -441,7 +442,8 @@ static __always_inline __pure bool __static_cpu_has(u16 bit)
16484
16485 #ifdef CONFIG_X86_DEBUG_STATIC_CPU_HAS
16486 t_warn:
16487- warn_pre_alternatives();
16488+ if (bit != X86_FEATURE_PCID && bit != X86_FEATURE_INVPCID)
16489+ warn_pre_alternatives();
16490 return false;
16491 #endif
16492
16493@@ -461,7 +463,7 @@ static __always_inline __pure bool __static_cpu_has(u16 bit)
16494 ".section .discard,\"aw\",@progbits\n"
16495 " .byte 0xff + (4f-3f) - (2b-1b)\n" /* size check */
16496 ".previous\n"
16497- ".section .altinstr_replacement,\"ax\"\n"
16498+ ".section .altinstr_replacement,\"a\"\n"
16499 "3: movb $1,%0\n"
16500 "4:\n"
16501 ".previous\n"
16502@@ -498,7 +500,7 @@ static __always_inline __pure bool _static_cpu_has_safe(u16 bit)
16503 " .byte 2b - 1b\n" /* src len */
16504 " .byte 4f - 3f\n" /* repl len */
16505 ".previous\n"
16506- ".section .altinstr_replacement,\"ax\"\n"
16507+ ".section .altinstr_replacement,\"a\"\n"
16508 "3: .byte 0xe9\n .long %l[t_no] - 2b\n"
16509 "4:\n"
16510 ".previous\n"
16511@@ -531,7 +533,7 @@ static __always_inline __pure bool _static_cpu_has_safe(u16 bit)
16512 ".section .discard,\"aw\",@progbits\n"
16513 " .byte 0xff + (4f-3f) - (2b-1b)\n" /* size check */
16514 ".previous\n"
16515- ".section .altinstr_replacement,\"ax\"\n"
16516+ ".section .altinstr_replacement,\"a\"\n"
16517 "3: movb $0,%0\n"
16518 "4:\n"
16519 ".previous\n"
16520@@ -545,7 +547,7 @@ static __always_inline __pure bool _static_cpu_has_safe(u16 bit)
16521 ".section .discard,\"aw\",@progbits\n"
16522 " .byte 0xff + (6f-5f) - (4b-3b)\n" /* size check */
16523 ".previous\n"
16524- ".section .altinstr_replacement,\"ax\"\n"
16525+ ".section .altinstr_replacement,\"a\"\n"
16526 "5: movb $1,%0\n"
16527 "6:\n"
16528 ".previous\n"
16529diff --git a/arch/x86/include/asm/desc.h b/arch/x86/include/asm/desc.h
16530index a94b82e..59ecefa 100644
16531--- a/arch/x86/include/asm/desc.h
16532+++ b/arch/x86/include/asm/desc.h
16533@@ -4,6 +4,7 @@
16534 #include <asm/desc_defs.h>
16535 #include <asm/ldt.h>
16536 #include <asm/mmu.h>
16537+#include <asm/pgtable.h>
16538
16539 #include <linux/smp.h>
16540 #include <linux/percpu.h>
16541@@ -17,6 +18,7 @@ static inline void fill_ldt(struct desc_struct *desc, const struct user_desc *in
16542
16543 desc->type = (info->read_exec_only ^ 1) << 1;
16544 desc->type |= info->contents << 2;
16545+ desc->type |= info->seg_not_present ^ 1;
16546
16547 desc->s = 1;
16548 desc->dpl = 0x3;
16549@@ -35,19 +37,14 @@ static inline void fill_ldt(struct desc_struct *desc, const struct user_desc *in
16550 }
16551
16552 extern struct desc_ptr idt_descr;
16553-extern gate_desc idt_table[];
16554-extern struct desc_ptr debug_idt_descr;
16555-extern gate_desc debug_idt_table[];
16556-
16557-struct gdt_page {
16558- struct desc_struct gdt[GDT_ENTRIES];
16559-} __attribute__((aligned(PAGE_SIZE)));
16560-
16561-DECLARE_PER_CPU_PAGE_ALIGNED(struct gdt_page, gdt_page);
16562+extern gate_desc idt_table[IDT_ENTRIES];
16563+extern const struct desc_ptr debug_idt_descr;
16564+extern gate_desc debug_idt_table[IDT_ENTRIES];
16565
16566+extern struct desc_struct cpu_gdt_table[NR_CPUS][PAGE_SIZE / sizeof(struct desc_struct)];
16567 static inline struct desc_struct *get_cpu_gdt_table(unsigned int cpu)
16568 {
16569- return per_cpu(gdt_page, cpu).gdt;
16570+ return cpu_gdt_table[cpu];
16571 }
16572
16573 #ifdef CONFIG_X86_64
16574@@ -72,8 +69,14 @@ static inline void pack_gate(gate_desc *gate, unsigned char type,
16575 unsigned long base, unsigned dpl, unsigned flags,
16576 unsigned short seg)
16577 {
16578- gate->a = (seg << 16) | (base & 0xffff);
16579- gate->b = (base & 0xffff0000) | (((0x80 | type | (dpl << 5)) & 0xff) << 8);
16580+ gate->gate.offset_low = base;
16581+ gate->gate.seg = seg;
16582+ gate->gate.reserved = 0;
16583+ gate->gate.type = type;
16584+ gate->gate.s = 0;
16585+ gate->gate.dpl = dpl;
16586+ gate->gate.p = 1;
16587+ gate->gate.offset_high = base >> 16;
16588 }
16589
16590 #endif
16591@@ -118,12 +121,16 @@ static inline void paravirt_free_ldt(struct desc_struct *ldt, unsigned entries)
16592
16593 static inline void native_write_idt_entry(gate_desc *idt, int entry, const gate_desc *gate)
16594 {
16595+ pax_open_kernel();
16596 memcpy(&idt[entry], gate, sizeof(*gate));
16597+ pax_close_kernel();
16598 }
16599
16600 static inline void native_write_ldt_entry(struct desc_struct *ldt, int entry, const void *desc)
16601 {
16602+ pax_open_kernel();
16603 memcpy(&ldt[entry], desc, 8);
16604+ pax_close_kernel();
16605 }
16606
16607 static inline void
16608@@ -137,7 +144,9 @@ native_write_gdt_entry(struct desc_struct *gdt, int entry, const void *desc, int
16609 default: size = sizeof(*gdt); break;
16610 }
16611
16612+ pax_open_kernel();
16613 memcpy(&gdt[entry], desc, size);
16614+ pax_close_kernel();
16615 }
16616
16617 static inline void pack_descriptor(struct desc_struct *desc, unsigned long base,
16618@@ -210,7 +219,9 @@ static inline void native_set_ldt(const void *addr, unsigned int entries)
16619
16620 static inline void native_load_tr_desc(void)
16621 {
16622+ pax_open_kernel();
16623 asm volatile("ltr %w0"::"q" (GDT_ENTRY_TSS*8));
16624+ pax_close_kernel();
16625 }
16626
16627 static inline void native_load_gdt(const struct desc_ptr *dtr)
16628@@ -247,8 +258,10 @@ static inline void native_load_tls(struct thread_struct *t, unsigned int cpu)
16629 struct desc_struct *gdt = get_cpu_gdt_table(cpu);
16630 unsigned int i;
16631
16632+ pax_open_kernel();
16633 for (i = 0; i < GDT_ENTRY_TLS_ENTRIES; i++)
16634 gdt[GDT_ENTRY_TLS_MIN + i] = t->tls_array[i];
16635+ pax_close_kernel();
16636 }
16637
16638 /* This intentionally ignores lm, since 32-bit apps don't have that field. */
16639@@ -295,7 +308,7 @@ static inline void load_LDT(mm_context_t *pc)
16640 preempt_enable();
16641 }
16642
16643-static inline unsigned long get_desc_base(const struct desc_struct *desc)
16644+static inline unsigned long __intentional_overflow(-1) get_desc_base(const struct desc_struct *desc)
16645 {
16646 return (unsigned)(desc->base0 | ((desc->base1) << 16) | ((desc->base2) << 24));
16647 }
16648@@ -319,7 +332,7 @@ static inline void set_desc_limit(struct desc_struct *desc, unsigned long limit)
16649 }
16650
16651 #ifdef CONFIG_X86_64
16652-static inline void set_nmi_gate(int gate, void *addr)
16653+static inline void set_nmi_gate(int gate, const void *addr)
16654 {
16655 gate_desc s;
16656
16657@@ -329,14 +342,14 @@ static inline void set_nmi_gate(int gate, void *addr)
16658 #endif
16659
16660 #ifdef CONFIG_TRACING
16661-extern struct desc_ptr trace_idt_descr;
16662-extern gate_desc trace_idt_table[];
16663+extern const struct desc_ptr trace_idt_descr;
16664+extern gate_desc trace_idt_table[IDT_ENTRIES];
16665 static inline void write_trace_idt_entry(int entry, const gate_desc *gate)
16666 {
16667 write_idt_entry(trace_idt_table, entry, gate);
16668 }
16669
16670-static inline void _trace_set_gate(int gate, unsigned type, void *addr,
16671+static inline void _trace_set_gate(int gate, unsigned type, const void *addr,
16672 unsigned dpl, unsigned ist, unsigned seg)
16673 {
16674 gate_desc s;
16675@@ -356,7 +369,7 @@ static inline void write_trace_idt_entry(int entry, const gate_desc *gate)
16676 #define _trace_set_gate(gate, type, addr, dpl, ist, seg)
16677 #endif
16678
16679-static inline void _set_gate(int gate, unsigned type, void *addr,
16680+static inline void _set_gate(int gate, unsigned type, const void *addr,
16681 unsigned dpl, unsigned ist, unsigned seg)
16682 {
16683 gate_desc s;
16684@@ -379,9 +392,9 @@ static inline void _set_gate(int gate, unsigned type, void *addr,
16685 #define set_intr_gate(n, addr) \
16686 do { \
16687 BUG_ON((unsigned)n > 0xFF); \
16688- _set_gate(n, GATE_INTERRUPT, (void *)addr, 0, 0, \
16689+ _set_gate(n, GATE_INTERRUPT, (const void *)addr, 0, 0, \
16690 __KERNEL_CS); \
16691- _trace_set_gate(n, GATE_INTERRUPT, (void *)trace_##addr,\
16692+ _trace_set_gate(n, GATE_INTERRUPT, (const void *)trace_##addr,\
16693 0, 0, __KERNEL_CS); \
16694 } while (0)
16695
16696@@ -409,19 +422,19 @@ static inline void alloc_system_vector(int vector)
16697 /*
16698 * This routine sets up an interrupt gate at directory privilege level 3.
16699 */
16700-static inline void set_system_intr_gate(unsigned int n, void *addr)
16701+static inline void set_system_intr_gate(unsigned int n, const void *addr)
16702 {
16703 BUG_ON((unsigned)n > 0xFF);
16704 _set_gate(n, GATE_INTERRUPT, addr, 0x3, 0, __KERNEL_CS);
16705 }
16706
16707-static inline void set_system_trap_gate(unsigned int n, void *addr)
16708+static inline void set_system_trap_gate(unsigned int n, const void *addr)
16709 {
16710 BUG_ON((unsigned)n > 0xFF);
16711 _set_gate(n, GATE_TRAP, addr, 0x3, 0, __KERNEL_CS);
16712 }
16713
16714-static inline void set_trap_gate(unsigned int n, void *addr)
16715+static inline void set_trap_gate(unsigned int n, const void *addr)
16716 {
16717 BUG_ON((unsigned)n > 0xFF);
16718 _set_gate(n, GATE_TRAP, addr, 0, 0, __KERNEL_CS);
16719@@ -430,16 +443,16 @@ static inline void set_trap_gate(unsigned int n, void *addr)
16720 static inline void set_task_gate(unsigned int n, unsigned int gdt_entry)
16721 {
16722 BUG_ON((unsigned)n > 0xFF);
16723- _set_gate(n, GATE_TASK, (void *)0, 0, 0, (gdt_entry<<3));
16724+ _set_gate(n, GATE_TASK, (const void *)0, 0, 0, (gdt_entry<<3));
16725 }
16726
16727-static inline void set_intr_gate_ist(int n, void *addr, unsigned ist)
16728+static inline void set_intr_gate_ist(int n, const void *addr, unsigned ist)
16729 {
16730 BUG_ON((unsigned)n > 0xFF);
16731 _set_gate(n, GATE_INTERRUPT, addr, 0, ist, __KERNEL_CS);
16732 }
16733
16734-static inline void set_system_intr_gate_ist(int n, void *addr, unsigned ist)
16735+static inline void set_system_intr_gate_ist(int n, const void *addr, unsigned ist)
16736 {
16737 BUG_ON((unsigned)n > 0xFF);
16738 _set_gate(n, GATE_INTERRUPT, addr, 0x3, ist, __KERNEL_CS);
16739@@ -511,4 +524,17 @@ static inline void load_current_idt(void)
16740 else
16741 load_idt((const struct desc_ptr *)&idt_descr);
16742 }
16743+
16744+#ifdef CONFIG_X86_32
16745+static inline void set_user_cs(unsigned long base, unsigned long limit, int cpu)
16746+{
16747+ struct desc_struct d;
16748+
16749+ if (likely(limit))
16750+ limit = (limit - 1UL) >> PAGE_SHIFT;
16751+ pack_descriptor(&d, base, limit, 0xFB, 0xC);
16752+ write_gdt_entry(get_cpu_gdt_table(cpu), GDT_ENTRY_DEFAULT_USER_CS, &d, DESCTYPE_S);
16753+}
16754+#endif
16755+
16756 #endif /* _ASM_X86_DESC_H */
16757diff --git a/arch/x86/include/asm/desc_defs.h b/arch/x86/include/asm/desc_defs.h
16758index 278441f..b95a174 100644
16759--- a/arch/x86/include/asm/desc_defs.h
16760+++ b/arch/x86/include/asm/desc_defs.h
16761@@ -31,6 +31,12 @@ struct desc_struct {
16762 unsigned base1: 8, type: 4, s: 1, dpl: 2, p: 1;
16763 unsigned limit: 4, avl: 1, l: 1, d: 1, g: 1, base2: 8;
16764 };
16765+ struct {
16766+ u16 offset_low;
16767+ u16 seg;
16768+ unsigned reserved: 8, type: 4, s: 1, dpl: 2, p: 1;
16769+ unsigned offset_high: 16;
16770+ } gate;
16771 };
16772 } __attribute__((packed));
16773
16774diff --git a/arch/x86/include/asm/div64.h b/arch/x86/include/asm/div64.h
16775index ced283a..ffe04cc 100644
16776--- a/arch/x86/include/asm/div64.h
16777+++ b/arch/x86/include/asm/div64.h
16778@@ -39,7 +39,7 @@
16779 __mod; \
16780 })
16781
16782-static inline u64 div_u64_rem(u64 dividend, u32 divisor, u32 *remainder)
16783+static inline u64 __intentional_overflow(-1) div_u64_rem(u64 dividend, u32 divisor, u32 *remainder)
16784 {
16785 union {
16786 u64 v64;
16787diff --git a/arch/x86/include/asm/elf.h b/arch/x86/include/asm/elf.h
16788index ca3347a..1a5082a 100644
16789--- a/arch/x86/include/asm/elf.h
16790+++ b/arch/x86/include/asm/elf.h
16791@@ -75,9 +75,6 @@ typedef struct user_fxsr_struct elf_fpxregset_t;
16792
16793 #include <asm/vdso.h>
16794
16795-#ifdef CONFIG_X86_64
16796-extern unsigned int vdso64_enabled;
16797-#endif
16798 #if defined(CONFIG_X86_32) || defined(CONFIG_COMPAT)
16799 extern unsigned int vdso32_enabled;
16800 #endif
16801@@ -249,7 +246,25 @@ extern int force_personality32;
16802 the loader. We need to make sure that it is out of the way of the program
16803 that it will "exec", and that there is sufficient room for the brk. */
16804
16805+#ifdef CONFIG_PAX_SEGMEXEC
16806+#define ELF_ET_DYN_BASE ((current->mm->pax_flags & MF_PAX_SEGMEXEC) ? SEGMEXEC_TASK_SIZE/3*2 : TASK_SIZE/3*2)
16807+#else
16808 #define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2)
16809+#endif
16810+
16811+#ifdef CONFIG_PAX_ASLR
16812+#ifdef CONFIG_X86_32
16813+#define PAX_ELF_ET_DYN_BASE 0x10000000UL
16814+
16815+#define PAX_DELTA_MMAP_LEN (current->mm->pax_flags & MF_PAX_SEGMEXEC ? 15 : 16)
16816+#define PAX_DELTA_STACK_LEN (current->mm->pax_flags & MF_PAX_SEGMEXEC ? 15 : 16)
16817+#else
16818+#define PAX_ELF_ET_DYN_BASE 0x400000UL
16819+
16820+#define PAX_DELTA_MMAP_LEN ((test_thread_flag(TIF_ADDR32)) ? 16 : TASK_SIZE_MAX_SHIFT - PAGE_SHIFT - 3)
16821+#define PAX_DELTA_STACK_LEN ((test_thread_flag(TIF_ADDR32)) ? 16 : TASK_SIZE_MAX_SHIFT - PAGE_SHIFT - 3)
16822+#endif
16823+#endif
16824
16825 /* This yields a mask that user programs can use to figure out what
16826 instruction set this CPU supports. This could be done in user space,
16827@@ -298,17 +313,13 @@ do { \
16828
16829 #define ARCH_DLINFO \
16830 do { \
16831- if (vdso64_enabled) \
16832- NEW_AUX_ENT(AT_SYSINFO_EHDR, \
16833- (unsigned long __force)current->mm->context.vdso); \
16834+ NEW_AUX_ENT(AT_SYSINFO_EHDR, current->mm->context.vdso); \
16835 } while (0)
16836
16837 /* As a historical oddity, the x32 and x86_64 vDSOs are controlled together. */
16838 #define ARCH_DLINFO_X32 \
16839 do { \
16840- if (vdso64_enabled) \
16841- NEW_AUX_ENT(AT_SYSINFO_EHDR, \
16842- (unsigned long __force)current->mm->context.vdso); \
16843+ NEW_AUX_ENT(AT_SYSINFO_EHDR, current->mm->context.vdso); \
16844 } while (0)
16845
16846 #define AT_SYSINFO 32
16847@@ -323,10 +334,10 @@ else \
16848
16849 #endif /* !CONFIG_X86_32 */
16850
16851-#define VDSO_CURRENT_BASE ((unsigned long)current->mm->context.vdso)
16852+#define VDSO_CURRENT_BASE (current->mm->context.vdso)
16853
16854 #define VDSO_ENTRY \
16855- ((unsigned long)current->mm->context.vdso + \
16856+ (current->mm->context.vdso + \
16857 selected_vdso32->sym___kernel_vsyscall)
16858
16859 struct linux_binprm;
16860@@ -338,9 +349,6 @@ extern int compat_arch_setup_additional_pages(struct linux_binprm *bprm,
16861 int uses_interp);
16862 #define compat_arch_setup_additional_pages compat_arch_setup_additional_pages
16863
16864-extern unsigned long arch_randomize_brk(struct mm_struct *mm);
16865-#define arch_randomize_brk arch_randomize_brk
16866-
16867 /*
16868 * True on X86_32 or when emulating IA32 on X86_64
16869 */
16870diff --git a/arch/x86/include/asm/emergency-restart.h b/arch/x86/include/asm/emergency-restart.h
16871index 77a99ac..39ff7f5 100644
16872--- a/arch/x86/include/asm/emergency-restart.h
16873+++ b/arch/x86/include/asm/emergency-restart.h
16874@@ -1,6 +1,6 @@
16875 #ifndef _ASM_X86_EMERGENCY_RESTART_H
16876 #define _ASM_X86_EMERGENCY_RESTART_H
16877
16878-extern void machine_emergency_restart(void);
16879+extern void machine_emergency_restart(void) __noreturn;
16880
16881 #endif /* _ASM_X86_EMERGENCY_RESTART_H */
16882diff --git a/arch/x86/include/asm/floppy.h b/arch/x86/include/asm/floppy.h
16883index 1c7eefe..d0e4702 100644
16884--- a/arch/x86/include/asm/floppy.h
16885+++ b/arch/x86/include/asm/floppy.h
16886@@ -229,18 +229,18 @@ static struct fd_routine_l {
16887 int (*_dma_setup)(char *addr, unsigned long size, int mode, int io);
16888 } fd_routine[] = {
16889 {
16890- request_dma,
16891- free_dma,
16892- get_dma_residue,
16893- dma_mem_alloc,
16894- hard_dma_setup
16895+ ._request_dma = request_dma,
16896+ ._free_dma = free_dma,
16897+ ._get_dma_residue = get_dma_residue,
16898+ ._dma_mem_alloc = dma_mem_alloc,
16899+ ._dma_setup = hard_dma_setup
16900 },
16901 {
16902- vdma_request_dma,
16903- vdma_nop,
16904- vdma_get_dma_residue,
16905- vdma_mem_alloc,
16906- vdma_dma_setup
16907+ ._request_dma = vdma_request_dma,
16908+ ._free_dma = vdma_nop,
16909+ ._get_dma_residue = vdma_get_dma_residue,
16910+ ._dma_mem_alloc = vdma_mem_alloc,
16911+ ._dma_setup = vdma_dma_setup
16912 }
16913 };
16914
16915diff --git a/arch/x86/include/asm/fpu-internal.h b/arch/x86/include/asm/fpu-internal.h
16916index 72ba21a..79f3f66 100644
16917--- a/arch/x86/include/asm/fpu-internal.h
16918+++ b/arch/x86/include/asm/fpu-internal.h
16919@@ -124,8 +124,11 @@ static inline void sanitize_i387_state(struct task_struct *tsk)
16920 #define user_insn(insn, output, input...) \
16921 ({ \
16922 int err; \
16923+ pax_open_userland(); \
16924 asm volatile(ASM_STAC "\n" \
16925- "1:" #insn "\n\t" \
16926+ "1:" \
16927+ __copyuser_seg \
16928+ #insn "\n\t" \
16929 "2: " ASM_CLAC "\n" \
16930 ".section .fixup,\"ax\"\n" \
16931 "3: movl $-1,%[err]\n" \
16932@@ -134,6 +137,7 @@ static inline void sanitize_i387_state(struct task_struct *tsk)
16933 _ASM_EXTABLE(1b, 3b) \
16934 : [err] "=r" (err), output \
16935 : "0"(0), input); \
16936+ pax_close_userland(); \
16937 err; \
16938 })
16939
16940@@ -300,7 +304,7 @@ static inline int restore_fpu_checking(struct task_struct *tsk)
16941 "fnclex\n\t"
16942 "emms\n\t"
16943 "fildl %P[addr]" /* set F?P to defined value */
16944- : : [addr] "m" (tsk->thread.fpu.has_fpu));
16945+ : : [addr] "m" (init_tss[raw_smp_processor_id()].x86_tss.sp0));
16946 }
16947
16948 return fpu_restore_checking(&tsk->thread.fpu);
16949diff --git a/arch/x86/include/asm/futex.h b/arch/x86/include/asm/futex.h
16950index b4c1f54..e290c08 100644
16951--- a/arch/x86/include/asm/futex.h
16952+++ b/arch/x86/include/asm/futex.h
16953@@ -12,6 +12,7 @@
16954 #include <asm/smap.h>
16955
16956 #define __futex_atomic_op1(insn, ret, oldval, uaddr, oparg) \
16957+ typecheck(u32 __user *, uaddr); \
16958 asm volatile("\t" ASM_STAC "\n" \
16959 "1:\t" insn "\n" \
16960 "2:\t" ASM_CLAC "\n" \
16961@@ -20,15 +21,16 @@
16962 "\tjmp\t2b\n" \
16963 "\t.previous\n" \
16964 _ASM_EXTABLE(1b, 3b) \
16965- : "=r" (oldval), "=r" (ret), "+m" (*uaddr) \
16966+ : "=r" (oldval), "=r" (ret), "+m" (*(u32 __user *)____m(uaddr)) \
16967 : "i" (-EFAULT), "0" (oparg), "1" (0))
16968
16969 #define __futex_atomic_op2(insn, ret, oldval, uaddr, oparg) \
16970+ typecheck(u32 __user *, uaddr); \
16971 asm volatile("\t" ASM_STAC "\n" \
16972 "1:\tmovl %2, %0\n" \
16973 "\tmovl\t%0, %3\n" \
16974 "\t" insn "\n" \
16975- "2:\t" LOCK_PREFIX "cmpxchgl %3, %2\n" \
16976+ "2:\t" LOCK_PREFIX __copyuser_seg"cmpxchgl %3, %2\n" \
16977 "\tjnz\t1b\n" \
16978 "3:\t" ASM_CLAC "\n" \
16979 "\t.section .fixup,\"ax\"\n" \
16980@@ -38,7 +40,7 @@
16981 _ASM_EXTABLE(1b, 4b) \
16982 _ASM_EXTABLE(2b, 4b) \
16983 : "=&a" (oldval), "=&r" (ret), \
16984- "+m" (*uaddr), "=&r" (tem) \
16985+ "+m" (*(u32 __user *)____m(uaddr)), "=&r" (tem) \
16986 : "r" (oparg), "i" (-EFAULT), "1" (0))
16987
16988 static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
16989@@ -57,12 +59,13 @@ static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
16990
16991 pagefault_disable();
16992
16993+ pax_open_userland();
16994 switch (op) {
16995 case FUTEX_OP_SET:
16996- __futex_atomic_op1("xchgl %0, %2", ret, oldval, uaddr, oparg);
16997+ __futex_atomic_op1(__copyuser_seg"xchgl %0, %2", ret, oldval, uaddr, oparg);
16998 break;
16999 case FUTEX_OP_ADD:
17000- __futex_atomic_op1(LOCK_PREFIX "xaddl %0, %2", ret, oldval,
17001+ __futex_atomic_op1(LOCK_PREFIX __copyuser_seg"xaddl %0, %2", ret, oldval,
17002 uaddr, oparg);
17003 break;
17004 case FUTEX_OP_OR:
17005@@ -77,6 +80,7 @@ static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
17006 default:
17007 ret = -ENOSYS;
17008 }
17009+ pax_close_userland();
17010
17011 pagefault_enable();
17012
17013diff --git a/arch/x86/include/asm/hw_irq.h b/arch/x86/include/asm/hw_irq.h
17014index 9662290..49ca5e5 100644
17015--- a/arch/x86/include/asm/hw_irq.h
17016+++ b/arch/x86/include/asm/hw_irq.h
17017@@ -160,8 +160,8 @@ static inline void unlock_vector_lock(void) {}
17018 #endif /* CONFIG_X86_LOCAL_APIC */
17019
17020 /* Statistics */
17021-extern atomic_t irq_err_count;
17022-extern atomic_t irq_mis_count;
17023+extern atomic_unchecked_t irq_err_count;
17024+extern atomic_unchecked_t irq_mis_count;
17025
17026 /* EISA */
17027 extern void eisa_set_level_irq(unsigned int irq);
17028diff --git a/arch/x86/include/asm/i8259.h b/arch/x86/include/asm/i8259.h
17029index ccffa53..3c90c87 100644
17030--- a/arch/x86/include/asm/i8259.h
17031+++ b/arch/x86/include/asm/i8259.h
17032@@ -62,7 +62,7 @@ struct legacy_pic {
17033 void (*init)(int auto_eoi);
17034 int (*irq_pending)(unsigned int irq);
17035 void (*make_irq)(unsigned int irq);
17036-};
17037+} __do_const;
17038
17039 extern struct legacy_pic *legacy_pic;
17040 extern struct legacy_pic null_legacy_pic;
17041diff --git a/arch/x86/include/asm/io.h b/arch/x86/include/asm/io.h
17042index 34a5b93..27e40a6 100644
17043--- a/arch/x86/include/asm/io.h
17044+++ b/arch/x86/include/asm/io.h
17045@@ -52,12 +52,12 @@ static inline void name(type val, volatile void __iomem *addr) \
17046 "m" (*(volatile type __force *)addr) barrier); }
17047
17048 build_mmio_read(readb, "b", unsigned char, "=q", :"memory")
17049-build_mmio_read(readw, "w", unsigned short, "=r", :"memory")
17050-build_mmio_read(readl, "l", unsigned int, "=r", :"memory")
17051+build_mmio_read(__intentional_overflow(-1) readw, "w", unsigned short, "=r", :"memory")
17052+build_mmio_read(__intentional_overflow(-1) readl, "l", unsigned int, "=r", :"memory")
17053
17054 build_mmio_read(__readb, "b", unsigned char, "=q", )
17055-build_mmio_read(__readw, "w", unsigned short, "=r", )
17056-build_mmio_read(__readl, "l", unsigned int, "=r", )
17057+build_mmio_read(__intentional_overflow(-1) __readw, "w", unsigned short, "=r", )
17058+build_mmio_read(__intentional_overflow(-1) __readl, "l", unsigned int, "=r", )
17059
17060 build_mmio_write(writeb, "b", unsigned char, "q", :"memory")
17061 build_mmio_write(writew, "w", unsigned short, "r", :"memory")
17062@@ -113,7 +113,7 @@ build_mmio_write(writeq, "q", unsigned long, "r", :"memory")
17063 * this function
17064 */
17065
17066-static inline phys_addr_t virt_to_phys(volatile void *address)
17067+static inline phys_addr_t __intentional_overflow(-1) virt_to_phys(volatile void *address)
17068 {
17069 return __pa(address);
17070 }
17071@@ -189,7 +189,7 @@ static inline void __iomem *ioremap(resource_size_t offset, unsigned long size)
17072 return ioremap_nocache(offset, size);
17073 }
17074
17075-extern void iounmap(volatile void __iomem *addr);
17076+extern void iounmap(const volatile void __iomem *addr);
17077
17078 extern void set_iounmap_nonlazy(void);
17079
17080@@ -199,6 +199,17 @@ extern void set_iounmap_nonlazy(void);
17081
17082 #include <linux/vmalloc.h>
17083
17084+#define ARCH_HAS_VALID_PHYS_ADDR_RANGE
17085+static inline int valid_phys_addr_range(unsigned long addr, size_t count)
17086+{
17087+ return ((addr + count + PAGE_SIZE - 1) >> PAGE_SHIFT) < (1ULL << (boot_cpu_data.x86_phys_bits - PAGE_SHIFT)) ? 1 : 0;
17088+}
17089+
17090+static inline int valid_mmap_phys_addr_range(unsigned long pfn, size_t count)
17091+{
17092+ return (pfn + (count >> PAGE_SHIFT)) < (1ULL << (boot_cpu_data.x86_phys_bits - PAGE_SHIFT)) ? 1 : 0;
17093+}
17094+
17095 /*
17096 * Convert a virtual cached pointer to an uncached pointer
17097 */
17098diff --git a/arch/x86/include/asm/irqflags.h b/arch/x86/include/asm/irqflags.h
17099index 0a8b519..80e7d5b 100644
17100--- a/arch/x86/include/asm/irqflags.h
17101+++ b/arch/x86/include/asm/irqflags.h
17102@@ -141,6 +141,11 @@ static inline notrace unsigned long arch_local_irq_save(void)
17103 sti; \
17104 sysexit
17105
17106+#define GET_CR0_INTO_RDI mov %cr0, %rdi
17107+#define SET_RDI_INTO_CR0 mov %rdi, %cr0
17108+#define GET_CR3_INTO_RDI mov %cr3, %rdi
17109+#define SET_RDI_INTO_CR3 mov %rdi, %cr3
17110+
17111 #else
17112 #define INTERRUPT_RETURN iret
17113 #define ENABLE_INTERRUPTS_SYSEXIT sti; sysexit
17114diff --git a/arch/x86/include/asm/kprobes.h b/arch/x86/include/asm/kprobes.h
17115index 4421b5d..8543006 100644
17116--- a/arch/x86/include/asm/kprobes.h
17117+++ b/arch/x86/include/asm/kprobes.h
17118@@ -37,13 +37,8 @@ typedef u8 kprobe_opcode_t;
17119 #define RELATIVEJUMP_SIZE 5
17120 #define RELATIVECALL_OPCODE 0xe8
17121 #define RELATIVE_ADDR_SIZE 4
17122-#define MAX_STACK_SIZE 64
17123-#define MIN_STACK_SIZE(ADDR) \
17124- (((MAX_STACK_SIZE) < (((unsigned long)current_thread_info()) + \
17125- THREAD_SIZE - (unsigned long)(ADDR))) \
17126- ? (MAX_STACK_SIZE) \
17127- : (((unsigned long)current_thread_info()) + \
17128- THREAD_SIZE - (unsigned long)(ADDR)))
17129+#define MAX_STACK_SIZE 64UL
17130+#define MIN_STACK_SIZE(ADDR) min(MAX_STACK_SIZE, current->thread.sp0 - (unsigned long)(ADDR))
17131
17132 #define flush_insn_slot(p) do { } while (0)
17133
17134diff --git a/arch/x86/include/asm/local.h b/arch/x86/include/asm/local.h
17135index 4ad6560..75c7bdd 100644
17136--- a/arch/x86/include/asm/local.h
17137+++ b/arch/x86/include/asm/local.h
17138@@ -10,33 +10,97 @@ typedef struct {
17139 atomic_long_t a;
17140 } local_t;
17141
17142+typedef struct {
17143+ atomic_long_unchecked_t a;
17144+} local_unchecked_t;
17145+
17146 #define LOCAL_INIT(i) { ATOMIC_LONG_INIT(i) }
17147
17148 #define local_read(l) atomic_long_read(&(l)->a)
17149+#define local_read_unchecked(l) atomic_long_read_unchecked(&(l)->a)
17150 #define local_set(l, i) atomic_long_set(&(l)->a, (i))
17151+#define local_set_unchecked(l, i) atomic_long_set_unchecked(&(l)->a, (i))
17152
17153 static inline void local_inc(local_t *l)
17154 {
17155- asm volatile(_ASM_INC "%0"
17156+ asm volatile(_ASM_INC "%0\n"
17157+
17158+#ifdef CONFIG_PAX_REFCOUNT
17159+ "jno 0f\n"
17160+ _ASM_DEC "%0\n"
17161+ "int $4\n0:\n"
17162+ _ASM_EXTABLE(0b, 0b)
17163+#endif
17164+
17165+ : "+m" (l->a.counter));
17166+}
17167+
17168+static inline void local_inc_unchecked(local_unchecked_t *l)
17169+{
17170+ asm volatile(_ASM_INC "%0\n"
17171 : "+m" (l->a.counter));
17172 }
17173
17174 static inline void local_dec(local_t *l)
17175 {
17176- asm volatile(_ASM_DEC "%0"
17177+ asm volatile(_ASM_DEC "%0\n"
17178+
17179+#ifdef CONFIG_PAX_REFCOUNT
17180+ "jno 0f\n"
17181+ _ASM_INC "%0\n"
17182+ "int $4\n0:\n"
17183+ _ASM_EXTABLE(0b, 0b)
17184+#endif
17185+
17186+ : "+m" (l->a.counter));
17187+}
17188+
17189+static inline void local_dec_unchecked(local_unchecked_t *l)
17190+{
17191+ asm volatile(_ASM_DEC "%0\n"
17192 : "+m" (l->a.counter));
17193 }
17194
17195 static inline void local_add(long i, local_t *l)
17196 {
17197- asm volatile(_ASM_ADD "%1,%0"
17198+ asm volatile(_ASM_ADD "%1,%0\n"
17199+
17200+#ifdef CONFIG_PAX_REFCOUNT
17201+ "jno 0f\n"
17202+ _ASM_SUB "%1,%0\n"
17203+ "int $4\n0:\n"
17204+ _ASM_EXTABLE(0b, 0b)
17205+#endif
17206+
17207+ : "+m" (l->a.counter)
17208+ : "ir" (i));
17209+}
17210+
17211+static inline void local_add_unchecked(long i, local_unchecked_t *l)
17212+{
17213+ asm volatile(_ASM_ADD "%1,%0\n"
17214 : "+m" (l->a.counter)
17215 : "ir" (i));
17216 }
17217
17218 static inline void local_sub(long i, local_t *l)
17219 {
17220- asm volatile(_ASM_SUB "%1,%0"
17221+ asm volatile(_ASM_SUB "%1,%0\n"
17222+
17223+#ifdef CONFIG_PAX_REFCOUNT
17224+ "jno 0f\n"
17225+ _ASM_ADD "%1,%0\n"
17226+ "int $4\n0:\n"
17227+ _ASM_EXTABLE(0b, 0b)
17228+#endif
17229+
17230+ : "+m" (l->a.counter)
17231+ : "ir" (i));
17232+}
17233+
17234+static inline void local_sub_unchecked(long i, local_unchecked_t *l)
17235+{
17236+ asm volatile(_ASM_SUB "%1,%0\n"
17237 : "+m" (l->a.counter)
17238 : "ir" (i));
17239 }
17240@@ -52,7 +116,7 @@ static inline void local_sub(long i, local_t *l)
17241 */
17242 static inline int local_sub_and_test(long i, local_t *l)
17243 {
17244- GEN_BINARY_RMWcc(_ASM_SUB, l->a.counter, "er", i, "%0", "e");
17245+ GEN_BINARY_RMWcc(_ASM_SUB, _ASM_ADD, l->a.counter, "er", i, "%0", "e");
17246 }
17247
17248 /**
17249@@ -65,7 +129,7 @@ static inline int local_sub_and_test(long i, local_t *l)
17250 */
17251 static inline int local_dec_and_test(local_t *l)
17252 {
17253- GEN_UNARY_RMWcc(_ASM_DEC, l->a.counter, "%0", "e");
17254+ GEN_UNARY_RMWcc(_ASM_DEC, _ASM_INC, l->a.counter, "%0", "e");
17255 }
17256
17257 /**
17258@@ -78,7 +142,7 @@ static inline int local_dec_and_test(local_t *l)
17259 */
17260 static inline int local_inc_and_test(local_t *l)
17261 {
17262- GEN_UNARY_RMWcc(_ASM_INC, l->a.counter, "%0", "e");
17263+ GEN_UNARY_RMWcc(_ASM_INC, _ASM_DEC, l->a.counter, "%0", "e");
17264 }
17265
17266 /**
17267@@ -92,7 +156,7 @@ static inline int local_inc_and_test(local_t *l)
17268 */
17269 static inline int local_add_negative(long i, local_t *l)
17270 {
17271- GEN_BINARY_RMWcc(_ASM_ADD, l->a.counter, "er", i, "%0", "s");
17272+ GEN_BINARY_RMWcc(_ASM_ADD, _ASM_SUB, l->a.counter, "er", i, "%0", "s");
17273 }
17274
17275 /**
17276@@ -105,6 +169,30 @@ static inline int local_add_negative(long i, local_t *l)
17277 static inline long local_add_return(long i, local_t *l)
17278 {
17279 long __i = i;
17280+ asm volatile(_ASM_XADD "%0, %1\n"
17281+
17282+#ifdef CONFIG_PAX_REFCOUNT
17283+ "jno 0f\n"
17284+ _ASM_MOV "%0,%1\n"
17285+ "int $4\n0:\n"
17286+ _ASM_EXTABLE(0b, 0b)
17287+#endif
17288+
17289+ : "+r" (i), "+m" (l->a.counter)
17290+ : : "memory");
17291+ return i + __i;
17292+}
17293+
17294+/**
17295+ * local_add_return_unchecked - add and return
17296+ * @i: integer value to add
17297+ * @l: pointer to type local_unchecked_t
17298+ *
17299+ * Atomically adds @i to @l and returns @i + @l
17300+ */
17301+static inline long local_add_return_unchecked(long i, local_unchecked_t *l)
17302+{
17303+ long __i = i;
17304 asm volatile(_ASM_XADD "%0, %1;"
17305 : "+r" (i), "+m" (l->a.counter)
17306 : : "memory");
17307@@ -121,6 +209,8 @@ static inline long local_sub_return(long i, local_t *l)
17308
17309 #define local_cmpxchg(l, o, n) \
17310 (cmpxchg_local(&((l)->a.counter), (o), (n)))
17311+#define local_cmpxchg_unchecked(l, o, n) \
17312+ (cmpxchg_local(&((l)->a.counter), (o), (n)))
17313 /* Always has a lock prefix */
17314 #define local_xchg(l, n) (xchg(&((l)->a.counter), (n)))
17315
17316diff --git a/arch/x86/include/asm/mman.h b/arch/x86/include/asm/mman.h
17317new file mode 100644
17318index 0000000..2bfd3ba
17319--- /dev/null
17320+++ b/arch/x86/include/asm/mman.h
17321@@ -0,0 +1,15 @@
17322+#ifndef _X86_MMAN_H
17323+#define _X86_MMAN_H
17324+
17325+#include <uapi/asm/mman.h>
17326+
17327+#ifdef __KERNEL__
17328+#ifndef __ASSEMBLY__
17329+#ifdef CONFIG_X86_32
17330+#define arch_mmap_check i386_mmap_check
17331+int i386_mmap_check(unsigned long addr, unsigned long len, unsigned long flags);
17332+#endif
17333+#endif
17334+#endif
17335+
17336+#endif /* X86_MMAN_H */
17337diff --git a/arch/x86/include/asm/mmu.h b/arch/x86/include/asm/mmu.h
17338index 09b9620..923aecd 100644
17339--- a/arch/x86/include/asm/mmu.h
17340+++ b/arch/x86/include/asm/mmu.h
17341@@ -9,7 +9,7 @@
17342 * we put the segment information here.
17343 */
17344 typedef struct {
17345- void *ldt;
17346+ struct desc_struct *ldt;
17347 int size;
17348
17349 #ifdef CONFIG_X86_64
17350@@ -18,7 +18,19 @@ typedef struct {
17351 #endif
17352
17353 struct mutex lock;
17354- void __user *vdso;
17355+ unsigned long vdso;
17356+
17357+#ifdef CONFIG_X86_32
17358+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
17359+ unsigned long user_cs_base;
17360+ unsigned long user_cs_limit;
17361+
17362+#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_SMP)
17363+ cpumask_t cpu_user_cs_mask;
17364+#endif
17365+
17366+#endif
17367+#endif
17368
17369 atomic_t perf_rdpmc_allowed; /* nonzero if rdpmc is allowed */
17370 } mm_context_t;
17371diff --git a/arch/x86/include/asm/mmu_context.h b/arch/x86/include/asm/mmu_context.h
17372index 883f6b93..bb405b5 100644
17373--- a/arch/x86/include/asm/mmu_context.h
17374+++ b/arch/x86/include/asm/mmu_context.h
17375@@ -42,6 +42,20 @@ void destroy_context(struct mm_struct *mm);
17376
17377 static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk)
17378 {
17379+
17380+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
17381+ if (!(static_cpu_has(X86_FEATURE_PCID))) {
17382+ unsigned int i;
17383+ pgd_t *pgd;
17384+
17385+ pax_open_kernel();
17386+ pgd = get_cpu_pgd(smp_processor_id(), kernel);
17387+ for (i = USER_PGD_PTRS; i < 2 * USER_PGD_PTRS; ++i)
17388+ set_pgd_batched(pgd+i, native_make_pgd(0));
17389+ pax_close_kernel();
17390+ }
17391+#endif
17392+
17393 #ifdef CONFIG_SMP
17394 if (this_cpu_read(cpu_tlbstate.state) == TLBSTATE_OK)
17395 this_cpu_write(cpu_tlbstate.state, TLBSTATE_LAZY);
17396@@ -52,16 +66,59 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
17397 struct task_struct *tsk)
17398 {
17399 unsigned cpu = smp_processor_id();
17400+#if defined(CONFIG_X86_32) && defined(CONFIG_SMP) && (defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC))
17401+ int tlbstate = TLBSTATE_OK;
17402+#endif
17403
17404 if (likely(prev != next)) {
17405 #ifdef CONFIG_SMP
17406+#if defined(CONFIG_X86_32) && (defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC))
17407+ tlbstate = this_cpu_read(cpu_tlbstate.state);
17408+#endif
17409 this_cpu_write(cpu_tlbstate.state, TLBSTATE_OK);
17410 this_cpu_write(cpu_tlbstate.active_mm, next);
17411 #endif
17412 cpumask_set_cpu(cpu, mm_cpumask(next));
17413
17414 /* Re-load page tables */
17415+#ifdef CONFIG_PAX_PER_CPU_PGD
17416+ pax_open_kernel();
17417+
17418+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
17419+ if (static_cpu_has(X86_FEATURE_PCID))
17420+ __clone_user_pgds(get_cpu_pgd(cpu, user), next->pgd);
17421+ else
17422+#endif
17423+
17424+ __clone_user_pgds(get_cpu_pgd(cpu, kernel), next->pgd);
17425+ __shadow_user_pgds(get_cpu_pgd(cpu, kernel) + USER_PGD_PTRS, next->pgd);
17426+ pax_close_kernel();
17427+ BUG_ON((__pa(get_cpu_pgd(cpu, kernel)) | PCID_KERNEL) != (read_cr3() & __PHYSICAL_MASK) && (__pa(get_cpu_pgd(cpu, user)) | PCID_USER) != (read_cr3() & __PHYSICAL_MASK));
17428+
17429+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
17430+ if (static_cpu_has(X86_FEATURE_PCID)) {
17431+ if (static_cpu_has(X86_FEATURE_INVPCID)) {
17432+ u64 descriptor[2];
17433+ descriptor[0] = PCID_USER;
17434+ asm volatile(__ASM_INVPCID : : "d"(&descriptor), "a"(INVPCID_SINGLE_CONTEXT) : "memory");
17435+ if (!static_cpu_has(X86_FEATURE_STRONGUDEREF)) {
17436+ descriptor[0] = PCID_KERNEL;
17437+ asm volatile(__ASM_INVPCID : : "d"(&descriptor), "a"(INVPCID_SINGLE_CONTEXT) : "memory");
17438+ }
17439+ } else {
17440+ write_cr3(__pa(get_cpu_pgd(cpu, user)) | PCID_USER);
17441+ if (static_cpu_has(X86_FEATURE_STRONGUDEREF))
17442+ write_cr3(__pa(get_cpu_pgd(cpu, kernel)) | PCID_KERNEL | PCID_NOFLUSH);
17443+ else
17444+ write_cr3(__pa(get_cpu_pgd(cpu, kernel)) | PCID_KERNEL);
17445+ }
17446+ } else
17447+#endif
17448+
17449+ load_cr3(get_cpu_pgd(cpu, kernel));
17450+#else
17451 load_cr3(next->pgd);
17452+#endif
17453 trace_tlb_flush(TLB_FLUSH_ON_TASK_SWITCH, TLB_FLUSH_ALL);
17454
17455 /* Stop flush ipis for the previous mm */
17456@@ -84,9 +141,67 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
17457 */
17458 if (unlikely(prev->context.ldt != next->context.ldt))
17459 load_LDT_nolock(&next->context);
17460+
17461+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_SMP)
17462+ if (!(__supported_pte_mask & _PAGE_NX)) {
17463+ smp_mb__before_atomic();
17464+ cpumask_clear_cpu(cpu, &prev->context.cpu_user_cs_mask);
17465+ smp_mb__after_atomic();
17466+ cpumask_set_cpu(cpu, &next->context.cpu_user_cs_mask);
17467+ }
17468+#endif
17469+
17470+#if defined(CONFIG_X86_32) && (defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC))
17471+ if (unlikely(prev->context.user_cs_base != next->context.user_cs_base ||
17472+ prev->context.user_cs_limit != next->context.user_cs_limit))
17473+ set_user_cs(next->context.user_cs_base, next->context.user_cs_limit, cpu);
17474+#ifdef CONFIG_SMP
17475+ else if (unlikely(tlbstate != TLBSTATE_OK))
17476+ set_user_cs(next->context.user_cs_base, next->context.user_cs_limit, cpu);
17477+#endif
17478+#endif
17479+
17480 }
17481+ else {
17482+
17483+#ifdef CONFIG_PAX_PER_CPU_PGD
17484+ pax_open_kernel();
17485+
17486+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
17487+ if (static_cpu_has(X86_FEATURE_PCID))
17488+ __clone_user_pgds(get_cpu_pgd(cpu, user), next->pgd);
17489+ else
17490+#endif
17491+
17492+ __clone_user_pgds(get_cpu_pgd(cpu, kernel), next->pgd);
17493+ __shadow_user_pgds(get_cpu_pgd(cpu, kernel) + USER_PGD_PTRS, next->pgd);
17494+ pax_close_kernel();
17495+ BUG_ON((__pa(get_cpu_pgd(cpu, kernel)) | PCID_KERNEL) != (read_cr3() & __PHYSICAL_MASK) && (__pa(get_cpu_pgd(cpu, user)) | PCID_USER) != (read_cr3() & __PHYSICAL_MASK));
17496+
17497+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
17498+ if (static_cpu_has(X86_FEATURE_PCID)) {
17499+ if (static_cpu_has(X86_FEATURE_INVPCID)) {
17500+ u64 descriptor[2];
17501+ descriptor[0] = PCID_USER;
17502+ asm volatile(__ASM_INVPCID : : "d"(&descriptor), "a"(INVPCID_SINGLE_CONTEXT) : "memory");
17503+ if (!static_cpu_has(X86_FEATURE_STRONGUDEREF)) {
17504+ descriptor[0] = PCID_KERNEL;
17505+ asm volatile(__ASM_INVPCID : : "d"(&descriptor), "a"(INVPCID_SINGLE_CONTEXT) : "memory");
17506+ }
17507+ } else {
17508+ write_cr3(__pa(get_cpu_pgd(cpu, user)) | PCID_USER);
17509+ if (static_cpu_has(X86_FEATURE_STRONGUDEREF))
17510+ write_cr3(__pa(get_cpu_pgd(cpu, kernel)) | PCID_KERNEL | PCID_NOFLUSH);
17511+ else
17512+ write_cr3(__pa(get_cpu_pgd(cpu, kernel)) | PCID_KERNEL);
17513+ }
17514+ } else
17515+#endif
17516+
17517+ load_cr3(get_cpu_pgd(cpu, kernel));
17518+#endif
17519+
17520 #ifdef CONFIG_SMP
17521- else {
17522 this_cpu_write(cpu_tlbstate.state, TLBSTATE_OK);
17523 BUG_ON(this_cpu_read(cpu_tlbstate.active_mm) != next);
17524
17525@@ -103,13 +218,30 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
17526 * tlb flush IPI delivery. We must reload CR3
17527 * to make sure to use no freed page tables.
17528 */
17529+
17530+#ifndef CONFIG_PAX_PER_CPU_PGD
17531 load_cr3(next->pgd);
17532 trace_tlb_flush(TLB_FLUSH_ON_TASK_SWITCH, TLB_FLUSH_ALL);
17533+#endif
17534+
17535 load_mm_cr4(next);
17536 load_LDT_nolock(&next->context);
17537+
17538+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_PAGEEXEC)
17539+ if (!(__supported_pte_mask & _PAGE_NX))
17540+ cpumask_set_cpu(cpu, &next->context.cpu_user_cs_mask);
17541+#endif
17542+
17543+#if defined(CONFIG_X86_32) && (defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC))
17544+#ifdef CONFIG_PAX_PAGEEXEC
17545+ if (!((next->pax_flags & MF_PAX_PAGEEXEC) && (__supported_pte_mask & _PAGE_NX)))
17546+#endif
17547+ set_user_cs(next->context.user_cs_base, next->context.user_cs_limit, cpu);
17548+#endif
17549+
17550 }
17551+#endif
17552 }
17553-#endif
17554 }
17555
17556 #define activate_mm(prev, next) \
17557diff --git a/arch/x86/include/asm/module.h b/arch/x86/include/asm/module.h
17558index e3b7819..b257c64 100644
17559--- a/arch/x86/include/asm/module.h
17560+++ b/arch/x86/include/asm/module.h
17561@@ -5,6 +5,7 @@
17562
17563 #ifdef CONFIG_X86_64
17564 /* X86_64 does not define MODULE_PROC_FAMILY */
17565+#define MODULE_PROC_FAMILY ""
17566 #elif defined CONFIG_M486
17567 #define MODULE_PROC_FAMILY "486 "
17568 #elif defined CONFIG_M586
17569@@ -57,8 +58,20 @@
17570 #error unknown processor family
17571 #endif
17572
17573-#ifdef CONFIG_X86_32
17574-# define MODULE_ARCH_VERMAGIC MODULE_PROC_FAMILY
17575+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_BTS
17576+#define MODULE_PAX_KERNEXEC "KERNEXEC_BTS "
17577+#elif defined(CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_OR)
17578+#define MODULE_PAX_KERNEXEC "KERNEXEC_OR "
17579+#else
17580+#define MODULE_PAX_KERNEXEC ""
17581 #endif
17582
17583+#ifdef CONFIG_PAX_MEMORY_UDEREF
17584+#define MODULE_PAX_UDEREF "UDEREF "
17585+#else
17586+#define MODULE_PAX_UDEREF ""
17587+#endif
17588+
17589+#define MODULE_ARCH_VERMAGIC MODULE_PROC_FAMILY MODULE_PAX_KERNEXEC MODULE_PAX_UDEREF
17590+
17591 #endif /* _ASM_X86_MODULE_H */
17592diff --git a/arch/x86/include/asm/nmi.h b/arch/x86/include/asm/nmi.h
17593index 5f2fc44..106caa6 100644
17594--- a/arch/x86/include/asm/nmi.h
17595+++ b/arch/x86/include/asm/nmi.h
17596@@ -36,26 +36,35 @@ enum {
17597
17598 typedef int (*nmi_handler_t)(unsigned int, struct pt_regs *);
17599
17600+struct nmiaction;
17601+
17602+struct nmiwork {
17603+ const struct nmiaction *action;
17604+ u64 max_duration;
17605+ struct irq_work irq_work;
17606+};
17607+
17608 struct nmiaction {
17609 struct list_head list;
17610 nmi_handler_t handler;
17611- u64 max_duration;
17612- struct irq_work irq_work;
17613 unsigned long flags;
17614 const char *name;
17615-};
17616+ struct nmiwork *work;
17617+} __do_const;
17618
17619 #define register_nmi_handler(t, fn, fg, n, init...) \
17620 ({ \
17621- static struct nmiaction init fn##_na = { \
17622+ static struct nmiwork fn##_nw; \
17623+ static const struct nmiaction init fn##_na = { \
17624 .handler = (fn), \
17625 .name = (n), \
17626 .flags = (fg), \
17627+ .work = &fn##_nw, \
17628 }; \
17629 __register_nmi_handler((t), &fn##_na); \
17630 })
17631
17632-int __register_nmi_handler(unsigned int, struct nmiaction *);
17633+int __register_nmi_handler(unsigned int, const struct nmiaction *);
17634
17635 void unregister_nmi_handler(unsigned int, const char *);
17636
17637diff --git a/arch/x86/include/asm/page.h b/arch/x86/include/asm/page.h
17638index 802dde3..9183e68 100644
17639--- a/arch/x86/include/asm/page.h
17640+++ b/arch/x86/include/asm/page.h
17641@@ -52,6 +52,7 @@ static inline void copy_user_page(void *to, void *from, unsigned long vaddr,
17642 __phys_addr_symbol(__phys_reloc_hide((unsigned long)(x)))
17643
17644 #define __va(x) ((void *)((unsigned long)(x)+PAGE_OFFSET))
17645+#define __early_va(x) ((void *)((unsigned long)(x)+__START_KERNEL_map - phys_base))
17646
17647 #define __boot_va(x) __va(x)
17648 #define __boot_pa(x) __pa(x)
17649@@ -60,11 +61,21 @@ static inline void copy_user_page(void *to, void *from, unsigned long vaddr,
17650 * virt_to_page(kaddr) returns a valid pointer if and only if
17651 * virt_addr_valid(kaddr) returns true.
17652 */
17653-#define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
17654 #define pfn_to_kaddr(pfn) __va((pfn) << PAGE_SHIFT)
17655 extern bool __virt_addr_valid(unsigned long kaddr);
17656 #define virt_addr_valid(kaddr) __virt_addr_valid((unsigned long) (kaddr))
17657
17658+#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
17659+#define virt_to_page(kaddr) \
17660+ ({ \
17661+ const void *__kaddr = (const void *)(kaddr); \
17662+ BUG_ON(!virt_addr_valid(__kaddr)); \
17663+ pfn_to_page(__pa(__kaddr) >> PAGE_SHIFT); \
17664+ })
17665+#else
17666+#define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
17667+#endif
17668+
17669 #endif /* __ASSEMBLY__ */
17670
17671 #include <asm-generic/memory_model.h>
17672diff --git a/arch/x86/include/asm/page_64.h b/arch/x86/include/asm/page_64.h
17673index b3bebf9..13ac22e 100644
17674--- a/arch/x86/include/asm/page_64.h
17675+++ b/arch/x86/include/asm/page_64.h
17676@@ -7,9 +7,9 @@
17677
17678 /* duplicated to the one in bootmem.h */
17679 extern unsigned long max_pfn;
17680-extern unsigned long phys_base;
17681+extern const unsigned long phys_base;
17682
17683-static inline unsigned long __phys_addr_nodebug(unsigned long x)
17684+static inline unsigned long __intentional_overflow(-1) __phys_addr_nodebug(unsigned long x)
17685 {
17686 unsigned long y = x - __START_KERNEL_map;
17687
17688@@ -20,8 +20,8 @@ static inline unsigned long __phys_addr_nodebug(unsigned long x)
17689 }
17690
17691 #ifdef CONFIG_DEBUG_VIRTUAL
17692-extern unsigned long __phys_addr(unsigned long);
17693-extern unsigned long __phys_addr_symbol(unsigned long);
17694+extern unsigned long __intentional_overflow(-1) __phys_addr(unsigned long);
17695+extern unsigned long __intentional_overflow(-1) __phys_addr_symbol(unsigned long);
17696 #else
17697 #define __phys_addr(x) __phys_addr_nodebug(x)
17698 #define __phys_addr_symbol(x) \
17699diff --git a/arch/x86/include/asm/paravirt.h b/arch/x86/include/asm/paravirt.h
17700index 965c47d..ffe0af8 100644
17701--- a/arch/x86/include/asm/paravirt.h
17702+++ b/arch/x86/include/asm/paravirt.h
17703@@ -560,7 +560,7 @@ static inline pmd_t __pmd(pmdval_t val)
17704 return (pmd_t) { ret };
17705 }
17706
17707-static inline pmdval_t pmd_val(pmd_t pmd)
17708+static inline __intentional_overflow(-1) pmdval_t pmd_val(pmd_t pmd)
17709 {
17710 pmdval_t ret;
17711
17712@@ -626,6 +626,18 @@ static inline void set_pgd(pgd_t *pgdp, pgd_t pgd)
17713 val);
17714 }
17715
17716+static inline void set_pgd_batched(pgd_t *pgdp, pgd_t pgd)
17717+{
17718+ pgdval_t val = native_pgd_val(pgd);
17719+
17720+ if (sizeof(pgdval_t) > sizeof(long))
17721+ PVOP_VCALL3(pv_mmu_ops.set_pgd_batched, pgdp,
17722+ val, (u64)val >> 32);
17723+ else
17724+ PVOP_VCALL2(pv_mmu_ops.set_pgd_batched, pgdp,
17725+ val);
17726+}
17727+
17728 static inline void pgd_clear(pgd_t *pgdp)
17729 {
17730 set_pgd(pgdp, __pgd(0));
17731@@ -710,6 +722,21 @@ static inline void __set_fixmap(unsigned /* enum fixed_addresses */ idx,
17732 pv_mmu_ops.set_fixmap(idx, phys, flags);
17733 }
17734
17735+#ifdef CONFIG_PAX_KERNEXEC
17736+static inline unsigned long pax_open_kernel(void)
17737+{
17738+ return PVOP_CALL0(unsigned long, pv_mmu_ops.pax_open_kernel);
17739+}
17740+
17741+static inline unsigned long pax_close_kernel(void)
17742+{
17743+ return PVOP_CALL0(unsigned long, pv_mmu_ops.pax_close_kernel);
17744+}
17745+#else
17746+static inline unsigned long pax_open_kernel(void) { return 0; }
17747+static inline unsigned long pax_close_kernel(void) { return 0; }
17748+#endif
17749+
17750 #if defined(CONFIG_SMP) && defined(CONFIG_PARAVIRT_SPINLOCKS)
17751
17752 static __always_inline void __ticket_lock_spinning(struct arch_spinlock *lock,
17753@@ -906,7 +933,7 @@ extern void default_banner(void);
17754
17755 #define PARA_PATCH(struct, off) ((PARAVIRT_PATCH_##struct + (off)) / 4)
17756 #define PARA_SITE(ptype, clobbers, ops) _PVSITE(ptype, clobbers, ops, .long, 4)
17757-#define PARA_INDIRECT(addr) *%cs:addr
17758+#define PARA_INDIRECT(addr) *%ss:addr
17759 #endif
17760
17761 #define INTERRUPT_RETURN \
17762@@ -981,6 +1008,21 @@ extern void default_banner(void);
17763 PARA_SITE(PARA_PATCH(pv_cpu_ops, PV_CPU_irq_enable_sysexit), \
17764 CLBR_NONE, \
17765 jmp PARA_INDIRECT(pv_cpu_ops+PV_CPU_irq_enable_sysexit))
17766+
17767+#define GET_CR0_INTO_RDI \
17768+ call PARA_INDIRECT(pv_cpu_ops+PV_CPU_read_cr0); \
17769+ mov %rax,%rdi
17770+
17771+#define SET_RDI_INTO_CR0 \
17772+ call PARA_INDIRECT(pv_cpu_ops+PV_CPU_write_cr0)
17773+
17774+#define GET_CR3_INTO_RDI \
17775+ call PARA_INDIRECT(pv_mmu_ops+PV_MMU_read_cr3); \
17776+ mov %rax,%rdi
17777+
17778+#define SET_RDI_INTO_CR3 \
17779+ call PARA_INDIRECT(pv_mmu_ops+PV_MMU_write_cr3)
17780+
17781 #endif /* CONFIG_X86_32 */
17782
17783 #endif /* __ASSEMBLY__ */
17784diff --git a/arch/x86/include/asm/paravirt_types.h b/arch/x86/include/asm/paravirt_types.h
17785index 7549b8b..f0edfda 100644
17786--- a/arch/x86/include/asm/paravirt_types.h
17787+++ b/arch/x86/include/asm/paravirt_types.h
17788@@ -84,7 +84,7 @@ struct pv_init_ops {
17789 */
17790 unsigned (*patch)(u8 type, u16 clobber, void *insnbuf,
17791 unsigned long addr, unsigned len);
17792-};
17793+} __no_const __no_randomize_layout;
17794
17795
17796 struct pv_lazy_ops {
17797@@ -92,13 +92,13 @@ struct pv_lazy_ops {
17798 void (*enter)(void);
17799 void (*leave)(void);
17800 void (*flush)(void);
17801-};
17802+} __no_randomize_layout;
17803
17804 struct pv_time_ops {
17805 unsigned long long (*sched_clock)(void);
17806 unsigned long long (*steal_clock)(int cpu);
17807 unsigned long (*get_tsc_khz)(void);
17808-};
17809+} __no_const __no_randomize_layout;
17810
17811 struct pv_cpu_ops {
17812 /* hooks for various privileged instructions */
17813@@ -192,7 +192,7 @@ struct pv_cpu_ops {
17814
17815 void (*start_context_switch)(struct task_struct *prev);
17816 void (*end_context_switch)(struct task_struct *next);
17817-};
17818+} __no_const __no_randomize_layout;
17819
17820 struct pv_irq_ops {
17821 /*
17822@@ -215,7 +215,7 @@ struct pv_irq_ops {
17823 #ifdef CONFIG_X86_64
17824 void (*adjust_exception_frame)(void);
17825 #endif
17826-};
17827+} __no_randomize_layout;
17828
17829 struct pv_apic_ops {
17830 #ifdef CONFIG_X86_LOCAL_APIC
17831@@ -223,7 +223,7 @@ struct pv_apic_ops {
17832 unsigned long start_eip,
17833 unsigned long start_esp);
17834 #endif
17835-};
17836+} __no_const __no_randomize_layout;
17837
17838 struct pv_mmu_ops {
17839 unsigned long (*read_cr2)(void);
17840@@ -313,6 +313,7 @@ struct pv_mmu_ops {
17841 struct paravirt_callee_save make_pud;
17842
17843 void (*set_pgd)(pgd_t *pudp, pgd_t pgdval);
17844+ void (*set_pgd_batched)(pgd_t *pudp, pgd_t pgdval);
17845 #endif /* PAGETABLE_LEVELS == 4 */
17846 #endif /* PAGETABLE_LEVELS >= 3 */
17847
17848@@ -324,7 +325,13 @@ struct pv_mmu_ops {
17849 an mfn. We can tell which is which from the index. */
17850 void (*set_fixmap)(unsigned /* enum fixed_addresses */ idx,
17851 phys_addr_t phys, pgprot_t flags);
17852-};
17853+
17854+#ifdef CONFIG_PAX_KERNEXEC
17855+ unsigned long (*pax_open_kernel)(void);
17856+ unsigned long (*pax_close_kernel)(void);
17857+#endif
17858+
17859+} __no_randomize_layout;
17860
17861 struct arch_spinlock;
17862 #ifdef CONFIG_SMP
17863@@ -336,11 +343,14 @@ typedef u16 __ticket_t;
17864 struct pv_lock_ops {
17865 struct paravirt_callee_save lock_spinning;
17866 void (*unlock_kick)(struct arch_spinlock *lock, __ticket_t ticket);
17867-};
17868+} __no_randomize_layout;
17869
17870 /* This contains all the paravirt structures: we get a convenient
17871 * number for each function using the offset which we use to indicate
17872- * what to patch. */
17873+ * what to patch.
17874+ * shouldn't be randomized due to the "NEAT TRICK" in paravirt.c
17875+ */
17876+
17877 struct paravirt_patch_template {
17878 struct pv_init_ops pv_init_ops;
17879 struct pv_time_ops pv_time_ops;
17880@@ -349,7 +359,7 @@ struct paravirt_patch_template {
17881 struct pv_apic_ops pv_apic_ops;
17882 struct pv_mmu_ops pv_mmu_ops;
17883 struct pv_lock_ops pv_lock_ops;
17884-};
17885+} __no_randomize_layout;
17886
17887 extern struct pv_info pv_info;
17888 extern struct pv_init_ops pv_init_ops;
17889diff --git a/arch/x86/include/asm/pgalloc.h b/arch/x86/include/asm/pgalloc.h
17890index c4412e9..90e88c5 100644
17891--- a/arch/x86/include/asm/pgalloc.h
17892+++ b/arch/x86/include/asm/pgalloc.h
17893@@ -63,6 +63,13 @@ static inline void pmd_populate_kernel(struct mm_struct *mm,
17894 pmd_t *pmd, pte_t *pte)
17895 {
17896 paravirt_alloc_pte(mm, __pa(pte) >> PAGE_SHIFT);
17897+ set_pmd(pmd, __pmd(__pa(pte) | _KERNPG_TABLE));
17898+}
17899+
17900+static inline void pmd_populate_user(struct mm_struct *mm,
17901+ pmd_t *pmd, pte_t *pte)
17902+{
17903+ paravirt_alloc_pte(mm, __pa(pte) >> PAGE_SHIFT);
17904 set_pmd(pmd, __pmd(__pa(pte) | _PAGE_TABLE));
17905 }
17906
17907@@ -108,12 +115,22 @@ static inline void __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd,
17908
17909 #ifdef CONFIG_X86_PAE
17910 extern void pud_populate(struct mm_struct *mm, pud_t *pudp, pmd_t *pmd);
17911+static inline void pud_populate_kernel(struct mm_struct *mm, pud_t *pudp, pmd_t *pmd)
17912+{
17913+ pud_populate(mm, pudp, pmd);
17914+}
17915 #else /* !CONFIG_X86_PAE */
17916 static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
17917 {
17918 paravirt_alloc_pmd(mm, __pa(pmd) >> PAGE_SHIFT);
17919 set_pud(pud, __pud(_PAGE_TABLE | __pa(pmd)));
17920 }
17921+
17922+static inline void pud_populate_kernel(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
17923+{
17924+ paravirt_alloc_pmd(mm, __pa(pmd) >> PAGE_SHIFT);
17925+ set_pud(pud, __pud(_KERNPG_TABLE | __pa(pmd)));
17926+}
17927 #endif /* CONFIG_X86_PAE */
17928
17929 #if PAGETABLE_LEVELS > 3
17930@@ -123,6 +140,12 @@ static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, pud_t *pud)
17931 set_pgd(pgd, __pgd(_PAGE_TABLE | __pa(pud)));
17932 }
17933
17934+static inline void pgd_populate_kernel(struct mm_struct *mm, pgd_t *pgd, pud_t *pud)
17935+{
17936+ paravirt_alloc_pud(mm, __pa(pud) >> PAGE_SHIFT);
17937+ set_pgd(pgd, __pgd(_KERNPG_TABLE | __pa(pud)));
17938+}
17939+
17940 static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr)
17941 {
17942 return (pud_t *)get_zeroed_page(GFP_KERNEL|__GFP_REPEAT);
17943diff --git a/arch/x86/include/asm/pgtable-2level.h b/arch/x86/include/asm/pgtable-2level.h
17944index fd74a11..35fd5af 100644
17945--- a/arch/x86/include/asm/pgtable-2level.h
17946+++ b/arch/x86/include/asm/pgtable-2level.h
17947@@ -18,7 +18,9 @@ static inline void native_set_pte(pte_t *ptep , pte_t pte)
17948
17949 static inline void native_set_pmd(pmd_t *pmdp, pmd_t pmd)
17950 {
17951+ pax_open_kernel();
17952 *pmdp = pmd;
17953+ pax_close_kernel();
17954 }
17955
17956 static inline void native_set_pte_atomic(pte_t *ptep, pte_t pte)
17957diff --git a/arch/x86/include/asm/pgtable-3level.h b/arch/x86/include/asm/pgtable-3level.h
17958index cdaa58c..e61122b 100644
17959--- a/arch/x86/include/asm/pgtable-3level.h
17960+++ b/arch/x86/include/asm/pgtable-3level.h
17961@@ -92,12 +92,16 @@ static inline void native_set_pte_atomic(pte_t *ptep, pte_t pte)
17962
17963 static inline void native_set_pmd(pmd_t *pmdp, pmd_t pmd)
17964 {
17965+ pax_open_kernel();
17966 set_64bit((unsigned long long *)(pmdp), native_pmd_val(pmd));
17967+ pax_close_kernel();
17968 }
17969
17970 static inline void native_set_pud(pud_t *pudp, pud_t pud)
17971 {
17972+ pax_open_kernel();
17973 set_64bit((unsigned long long *)(pudp), native_pud_val(pud));
17974+ pax_close_kernel();
17975 }
17976
17977 /*
17978diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h
17979index a0c35bf..7045c6a 100644
17980--- a/arch/x86/include/asm/pgtable.h
17981+++ b/arch/x86/include/asm/pgtable.h
17982@@ -47,6 +47,7 @@ extern struct mm_struct *pgd_page_get_mm(struct page *page);
17983
17984 #ifndef __PAGETABLE_PUD_FOLDED
17985 #define set_pgd(pgdp, pgd) native_set_pgd(pgdp, pgd)
17986+#define set_pgd_batched(pgdp, pgd) native_set_pgd_batched(pgdp, pgd)
17987 #define pgd_clear(pgd) native_pgd_clear(pgd)
17988 #endif
17989
17990@@ -84,12 +85,53 @@ extern struct mm_struct *pgd_page_get_mm(struct page *page);
17991
17992 #define arch_end_context_switch(prev) do {} while(0)
17993
17994+#define pax_open_kernel() native_pax_open_kernel()
17995+#define pax_close_kernel() native_pax_close_kernel()
17996 #endif /* CONFIG_PARAVIRT */
17997
17998+#define __HAVE_ARCH_PAX_OPEN_KERNEL
17999+#define __HAVE_ARCH_PAX_CLOSE_KERNEL
18000+
18001+#ifdef CONFIG_PAX_KERNEXEC
18002+static inline unsigned long native_pax_open_kernel(void)
18003+{
18004+ unsigned long cr0;
18005+
18006+ preempt_disable();
18007+ barrier();
18008+ cr0 = read_cr0() ^ X86_CR0_WP;
18009+ BUG_ON(cr0 & X86_CR0_WP);
18010+ write_cr0(cr0);
18011+ barrier();
18012+ return cr0 ^ X86_CR0_WP;
18013+}
18014+
18015+static inline unsigned long native_pax_close_kernel(void)
18016+{
18017+ unsigned long cr0;
18018+
18019+ barrier();
18020+ cr0 = read_cr0() ^ X86_CR0_WP;
18021+ BUG_ON(!(cr0 & X86_CR0_WP));
18022+ write_cr0(cr0);
18023+ barrier();
18024+ preempt_enable_no_resched();
18025+ return cr0 ^ X86_CR0_WP;
18026+}
18027+#else
18028+static inline unsigned long native_pax_open_kernel(void) { return 0; }
18029+static inline unsigned long native_pax_close_kernel(void) { return 0; }
18030+#endif
18031+
18032 /*
18033 * The following only work if pte_present() is true.
18034 * Undefined behaviour if not..
18035 */
18036+static inline int pte_user(pte_t pte)
18037+{
18038+ return pte_val(pte) & _PAGE_USER;
18039+}
18040+
18041 static inline int pte_dirty(pte_t pte)
18042 {
18043 return pte_flags(pte) & _PAGE_DIRTY;
18044@@ -150,6 +192,11 @@ static inline unsigned long pud_pfn(pud_t pud)
18045 return (pud_val(pud) & PTE_PFN_MASK) >> PAGE_SHIFT;
18046 }
18047
18048+static inline unsigned long pgd_pfn(pgd_t pgd)
18049+{
18050+ return (pgd_val(pgd) & PTE_PFN_MASK) >> PAGE_SHIFT;
18051+}
18052+
18053 #define pte_page(pte) pfn_to_page(pte_pfn(pte))
18054
18055 static inline int pmd_large(pmd_t pte)
18056@@ -203,9 +250,29 @@ static inline pte_t pte_wrprotect(pte_t pte)
18057 return pte_clear_flags(pte, _PAGE_RW);
18058 }
18059
18060+static inline pte_t pte_mkread(pte_t pte)
18061+{
18062+ return __pte(pte_val(pte) | _PAGE_USER);
18063+}
18064+
18065 static inline pte_t pte_mkexec(pte_t pte)
18066 {
18067- return pte_clear_flags(pte, _PAGE_NX);
18068+#ifdef CONFIG_X86_PAE
18069+ if (__supported_pte_mask & _PAGE_NX)
18070+ return pte_clear_flags(pte, _PAGE_NX);
18071+ else
18072+#endif
18073+ return pte_set_flags(pte, _PAGE_USER);
18074+}
18075+
18076+static inline pte_t pte_exprotect(pte_t pte)
18077+{
18078+#ifdef CONFIG_X86_PAE
18079+ if (__supported_pte_mask & _PAGE_NX)
18080+ return pte_set_flags(pte, _PAGE_NX);
18081+ else
18082+#endif
18083+ return pte_clear_flags(pte, _PAGE_USER);
18084 }
18085
18086 static inline pte_t pte_mkdirty(pte_t pte)
18087@@ -420,6 +487,16 @@ pte_t *populate_extra_pte(unsigned long vaddr);
18088 #endif
18089
18090 #ifndef __ASSEMBLY__
18091+
18092+#ifdef CONFIG_PAX_PER_CPU_PGD
18093+extern pgd_t cpu_pgd[NR_CPUS][2][PTRS_PER_PGD];
18094+enum cpu_pgd_type {kernel = 0, user = 1};
18095+static inline pgd_t *get_cpu_pgd(unsigned int cpu, enum cpu_pgd_type type)
18096+{
18097+ return cpu_pgd[cpu][type];
18098+}
18099+#endif
18100+
18101 #include <linux/mm_types.h>
18102 #include <linux/mmdebug.h>
18103 #include <linux/log2.h>
18104@@ -571,7 +648,7 @@ static inline unsigned long pud_page_vaddr(pud_t pud)
18105 * Currently stuck as a macro due to indirect forward reference to
18106 * linux/mmzone.h's __section_mem_map_addr() definition:
18107 */
18108-#define pud_page(pud) pfn_to_page(pud_val(pud) >> PAGE_SHIFT)
18109+#define pud_page(pud) pfn_to_page((pud_val(pud) & PTE_PFN_MASK) >> PAGE_SHIFT)
18110
18111 /* Find an entry in the second-level page table.. */
18112 static inline pmd_t *pmd_offset(pud_t *pud, unsigned long address)
18113@@ -611,7 +688,7 @@ static inline unsigned long pgd_page_vaddr(pgd_t pgd)
18114 * Currently stuck as a macro due to indirect forward reference to
18115 * linux/mmzone.h's __section_mem_map_addr() definition:
18116 */
18117-#define pgd_page(pgd) pfn_to_page(pgd_val(pgd) >> PAGE_SHIFT)
18118+#define pgd_page(pgd) pfn_to_page((pgd_val(pgd) & PTE_PFN_MASK) >> PAGE_SHIFT)
18119
18120 /* to find an entry in a page-table-directory. */
18121 static inline unsigned long pud_index(unsigned long address)
18122@@ -626,7 +703,7 @@ static inline pud_t *pud_offset(pgd_t *pgd, unsigned long address)
18123
18124 static inline int pgd_bad(pgd_t pgd)
18125 {
18126- return (pgd_flags(pgd) & ~_PAGE_USER) != _KERNPG_TABLE;
18127+ return (pgd_flags(pgd) & ~(_PAGE_USER | _PAGE_NX)) != _KERNPG_TABLE;
18128 }
18129
18130 static inline int pgd_none(pgd_t pgd)
18131@@ -649,7 +726,12 @@ static inline int pgd_none(pgd_t pgd)
18132 * pgd_offset() returns a (pgd_t *)
18133 * pgd_index() is used get the offset into the pgd page's array of pgd_t's;
18134 */
18135-#define pgd_offset(mm, address) ((mm)->pgd + pgd_index((address)))
18136+#define pgd_offset(mm, address) ((mm)->pgd + pgd_index(address))
18137+
18138+#ifdef CONFIG_PAX_PER_CPU_PGD
18139+#define pgd_offset_cpu(cpu, type, address) (get_cpu_pgd(cpu, type) + pgd_index(address))
18140+#endif
18141+
18142 /*
18143 * a shortcut which implies the use of the kernel's pgd, instead
18144 * of a process's
18145@@ -660,6 +742,25 @@ static inline int pgd_none(pgd_t pgd)
18146 #define KERNEL_PGD_BOUNDARY pgd_index(PAGE_OFFSET)
18147 #define KERNEL_PGD_PTRS (PTRS_PER_PGD - KERNEL_PGD_BOUNDARY)
18148
18149+#ifdef CONFIG_X86_32
18150+#define USER_PGD_PTRS KERNEL_PGD_BOUNDARY
18151+#else
18152+#define TASK_SIZE_MAX_SHIFT CONFIG_TASK_SIZE_MAX_SHIFT
18153+#define USER_PGD_PTRS (_AC(1,UL) << (TASK_SIZE_MAX_SHIFT - PGDIR_SHIFT))
18154+
18155+#ifdef CONFIG_PAX_MEMORY_UDEREF
18156+#ifdef __ASSEMBLY__
18157+#define pax_user_shadow_base pax_user_shadow_base(%rip)
18158+#else
18159+extern unsigned long pax_user_shadow_base;
18160+extern pgdval_t clone_pgd_mask;
18161+#endif
18162+#else
18163+#define pax_user_shadow_base (0UL)
18164+#endif
18165+
18166+#endif
18167+
18168 #ifndef __ASSEMBLY__
18169
18170 extern int direct_gbpages;
18171@@ -826,11 +927,24 @@ static inline void pmdp_set_wrprotect(struct mm_struct *mm,
18172 * dst and src can be on the same page, but the range must not overlap,
18173 * and must not cross a page boundary.
18174 */
18175-static inline void clone_pgd_range(pgd_t *dst, pgd_t *src, int count)
18176+static inline void clone_pgd_range(pgd_t *dst, const pgd_t *src, int count)
18177 {
18178- memcpy(dst, src, count * sizeof(pgd_t));
18179+ pax_open_kernel();
18180+ while (count--)
18181+ *dst++ = *src++;
18182+ pax_close_kernel();
18183 }
18184
18185+#ifdef CONFIG_PAX_PER_CPU_PGD
18186+extern void __clone_user_pgds(pgd_t *dst, const pgd_t *src);
18187+#endif
18188+
18189+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
18190+extern void __shadow_user_pgds(pgd_t *dst, const pgd_t *src);
18191+#else
18192+static inline void __shadow_user_pgds(pgd_t *dst, const pgd_t *src) {}
18193+#endif
18194+
18195 #define PTE_SHIFT ilog2(PTRS_PER_PTE)
18196 static inline int page_level_shift(enum pg_level level)
18197 {
18198diff --git a/arch/x86/include/asm/pgtable_32.h b/arch/x86/include/asm/pgtable_32.h
18199index b6c0b40..3535d47 100644
18200--- a/arch/x86/include/asm/pgtable_32.h
18201+++ b/arch/x86/include/asm/pgtable_32.h
18202@@ -25,9 +25,6 @@
18203 struct mm_struct;
18204 struct vm_area_struct;
18205
18206-extern pgd_t swapper_pg_dir[1024];
18207-extern pgd_t initial_page_table[1024];
18208-
18209 static inline void pgtable_cache_init(void) { }
18210 static inline void check_pgt_cache(void) { }
18211 void paging_init(void);
18212@@ -45,6 +42,12 @@ void paging_init(void);
18213 # include <asm/pgtable-2level.h>
18214 #endif
18215
18216+extern pgd_t swapper_pg_dir[PTRS_PER_PGD];
18217+extern pgd_t initial_page_table[PTRS_PER_PGD];
18218+#ifdef CONFIG_X86_PAE
18219+extern pmd_t swapper_pm_dir[PTRS_PER_PGD][PTRS_PER_PMD];
18220+#endif
18221+
18222 #if defined(CONFIG_HIGHPTE)
18223 #define pte_offset_map(dir, address) \
18224 ((pte_t *)kmap_atomic(pmd_page(*(dir))) + \
18225@@ -59,12 +62,17 @@ void paging_init(void);
18226 /* Clear a kernel PTE and flush it from the TLB */
18227 #define kpte_clear_flush(ptep, vaddr) \
18228 do { \
18229+ pax_open_kernel(); \
18230 pte_clear(&init_mm, (vaddr), (ptep)); \
18231+ pax_close_kernel(); \
18232 __flush_tlb_one((vaddr)); \
18233 } while (0)
18234
18235 #endif /* !__ASSEMBLY__ */
18236
18237+#define HAVE_ARCH_UNMAPPED_AREA
18238+#define HAVE_ARCH_UNMAPPED_AREA_TOPDOWN
18239+
18240 /*
18241 * kern_addr_valid() is (1) for FLATMEM and (0) for
18242 * SPARSEMEM and DISCONTIGMEM
18243diff --git a/arch/x86/include/asm/pgtable_32_types.h b/arch/x86/include/asm/pgtable_32_types.h
18244index 9fb2f2b..b04b4bf 100644
18245--- a/arch/x86/include/asm/pgtable_32_types.h
18246+++ b/arch/x86/include/asm/pgtable_32_types.h
18247@@ -8,7 +8,7 @@
18248 */
18249 #ifdef CONFIG_X86_PAE
18250 # include <asm/pgtable-3level_types.h>
18251-# define PMD_SIZE (1UL << PMD_SHIFT)
18252+# define PMD_SIZE (_AC(1, UL) << PMD_SHIFT)
18253 # define PMD_MASK (~(PMD_SIZE - 1))
18254 #else
18255 # include <asm/pgtable-2level_types.h>
18256@@ -46,6 +46,19 @@ extern bool __vmalloc_start_set; /* set once high_memory is set */
18257 # define VMALLOC_END (FIXADDR_START - 2 * PAGE_SIZE)
18258 #endif
18259
18260+#ifdef CONFIG_PAX_KERNEXEC
18261+#ifndef __ASSEMBLY__
18262+extern unsigned char MODULES_EXEC_VADDR[];
18263+extern unsigned char MODULES_EXEC_END[];
18264+#endif
18265+#include <asm/boot.h>
18266+#define ktla_ktva(addr) (addr + LOAD_PHYSICAL_ADDR + PAGE_OFFSET)
18267+#define ktva_ktla(addr) (addr - LOAD_PHYSICAL_ADDR - PAGE_OFFSET)
18268+#else
18269+#define ktla_ktva(addr) (addr)
18270+#define ktva_ktla(addr) (addr)
18271+#endif
18272+
18273 #define MODULES_VADDR VMALLOC_START
18274 #define MODULES_END VMALLOC_END
18275 #define MODULES_LEN (MODULES_VADDR - MODULES_END)
18276diff --git a/arch/x86/include/asm/pgtable_64.h b/arch/x86/include/asm/pgtable_64.h
18277index 2ee7811..55aca24 100644
18278--- a/arch/x86/include/asm/pgtable_64.h
18279+++ b/arch/x86/include/asm/pgtable_64.h
18280@@ -16,11 +16,16 @@
18281
18282 extern pud_t level3_kernel_pgt[512];
18283 extern pud_t level3_ident_pgt[512];
18284+extern pud_t level3_vmalloc_start_pgt[512];
18285+extern pud_t level3_vmalloc_end_pgt[512];
18286+extern pud_t level3_vmemmap_pgt[512];
18287+extern pud_t level2_vmemmap_pgt[512];
18288 extern pmd_t level2_kernel_pgt[512];
18289 extern pmd_t level2_fixmap_pgt[512];
18290-extern pmd_t level2_ident_pgt[512];
18291-extern pte_t level1_fixmap_pgt[512];
18292-extern pgd_t init_level4_pgt[];
18293+extern pmd_t level2_ident_pgt[2][512];
18294+extern pte_t level1_fixmap_pgt[3][512];
18295+extern pte_t level1_vsyscall_pgt[512];
18296+extern pgd_t init_level4_pgt[512];
18297
18298 #define swapper_pg_dir init_level4_pgt
18299
18300@@ -62,7 +67,9 @@ static inline void native_set_pte_atomic(pte_t *ptep, pte_t pte)
18301
18302 static inline void native_set_pmd(pmd_t *pmdp, pmd_t pmd)
18303 {
18304+ pax_open_kernel();
18305 *pmdp = pmd;
18306+ pax_close_kernel();
18307 }
18308
18309 static inline void native_pmd_clear(pmd_t *pmd)
18310@@ -98,7 +105,9 @@ static inline pmd_t native_pmdp_get_and_clear(pmd_t *xp)
18311
18312 static inline void native_set_pud(pud_t *pudp, pud_t pud)
18313 {
18314+ pax_open_kernel();
18315 *pudp = pud;
18316+ pax_close_kernel();
18317 }
18318
18319 static inline void native_pud_clear(pud_t *pud)
18320@@ -108,6 +117,13 @@ static inline void native_pud_clear(pud_t *pud)
18321
18322 static inline void native_set_pgd(pgd_t *pgdp, pgd_t pgd)
18323 {
18324+ pax_open_kernel();
18325+ *pgdp = pgd;
18326+ pax_close_kernel();
18327+}
18328+
18329+static inline void native_set_pgd_batched(pgd_t *pgdp, pgd_t pgd)
18330+{
18331 *pgdp = pgd;
18332 }
18333
18334diff --git a/arch/x86/include/asm/pgtable_64_types.h b/arch/x86/include/asm/pgtable_64_types.h
18335index 602b602..acb53ed 100644
18336--- a/arch/x86/include/asm/pgtable_64_types.h
18337+++ b/arch/x86/include/asm/pgtable_64_types.h
18338@@ -61,11 +61,16 @@ typedef struct { pteval_t pte; } pte_t;
18339 #define MODULES_VADDR (__START_KERNEL_map + KERNEL_IMAGE_SIZE)
18340 #define MODULES_END _AC(0xffffffffff000000, UL)
18341 #define MODULES_LEN (MODULES_END - MODULES_VADDR)
18342+#define MODULES_EXEC_VADDR MODULES_VADDR
18343+#define MODULES_EXEC_END MODULES_END
18344 #define ESPFIX_PGD_ENTRY _AC(-2, UL)
18345 #define ESPFIX_BASE_ADDR (ESPFIX_PGD_ENTRY << PGDIR_SHIFT)
18346 #define EFI_VA_START ( -4 * (_AC(1, UL) << 30))
18347 #define EFI_VA_END (-68 * (_AC(1, UL) << 30))
18348
18349+#define ktla_ktva(addr) (addr)
18350+#define ktva_ktla(addr) (addr)
18351+
18352 #define EARLY_DYNAMIC_PAGE_TABLES 64
18353
18354 #endif /* _ASM_X86_PGTABLE_64_DEFS_H */
18355diff --git a/arch/x86/include/asm/pgtable_types.h b/arch/x86/include/asm/pgtable_types.h
18356index 8c7c108..1c1b77f 100644
18357--- a/arch/x86/include/asm/pgtable_types.h
18358+++ b/arch/x86/include/asm/pgtable_types.h
18359@@ -85,8 +85,10 @@
18360
18361 #if defined(CONFIG_X86_64) || defined(CONFIG_X86_PAE)
18362 #define _PAGE_NX (_AT(pteval_t, 1) << _PAGE_BIT_NX)
18363-#else
18364+#elif defined(CONFIG_KMEMCHECK) || defined(CONFIG_MEM_SOFT_DIRTY)
18365 #define _PAGE_NX (_AT(pteval_t, 0))
18366+#else
18367+#define _PAGE_NX (_AT(pteval_t, 1) << _PAGE_BIT_HIDDEN)
18368 #endif
18369
18370 #define _PAGE_PROTNONE (_AT(pteval_t, 1) << _PAGE_BIT_PROTNONE)
18371@@ -141,6 +143,9 @@ enum page_cache_mode {
18372 #define PAGE_READONLY_EXEC __pgprot(_PAGE_PRESENT | _PAGE_USER | \
18373 _PAGE_ACCESSED)
18374
18375+#define PAGE_READONLY_NOEXEC PAGE_READONLY
18376+#define PAGE_SHARED_NOEXEC PAGE_SHARED
18377+
18378 #define __PAGE_KERNEL_EXEC \
18379 (_PAGE_PRESENT | _PAGE_RW | _PAGE_DIRTY | _PAGE_ACCESSED | _PAGE_GLOBAL)
18380 #define __PAGE_KERNEL (__PAGE_KERNEL_EXEC | _PAGE_NX)
18381@@ -148,7 +153,7 @@ enum page_cache_mode {
18382 #define __PAGE_KERNEL_RO (__PAGE_KERNEL & ~_PAGE_RW)
18383 #define __PAGE_KERNEL_RX (__PAGE_KERNEL_EXEC & ~_PAGE_RW)
18384 #define __PAGE_KERNEL_NOCACHE (__PAGE_KERNEL | _PAGE_NOCACHE)
18385-#define __PAGE_KERNEL_VSYSCALL (__PAGE_KERNEL_RX | _PAGE_USER)
18386+#define __PAGE_KERNEL_VSYSCALL (__PAGE_KERNEL_RO | _PAGE_USER)
18387 #define __PAGE_KERNEL_VVAR (__PAGE_KERNEL_RO | _PAGE_USER)
18388 #define __PAGE_KERNEL_LARGE (__PAGE_KERNEL | _PAGE_PSE)
18389 #define __PAGE_KERNEL_LARGE_EXEC (__PAGE_KERNEL_EXEC | _PAGE_PSE)
18390@@ -194,7 +199,7 @@ enum page_cache_mode {
18391 #ifdef CONFIG_X86_64
18392 #define __PAGE_KERNEL_IDENT_LARGE_EXEC __PAGE_KERNEL_LARGE_EXEC
18393 #else
18394-#define PTE_IDENT_ATTR 0x003 /* PRESENT+RW */
18395+#define PTE_IDENT_ATTR 0x063 /* PRESENT+RW+DIRTY+ACCESSED */
18396 #define PDE_IDENT_ATTR 0x063 /* PRESENT+RW+DIRTY+ACCESSED */
18397 #define PGD_IDENT_ATTR 0x001 /* PRESENT (no other attributes) */
18398 #endif
18399@@ -233,7 +238,17 @@ static inline pgdval_t pgd_flags(pgd_t pgd)
18400 {
18401 return native_pgd_val(pgd) & PTE_FLAGS_MASK;
18402 }
18403+#endif
18404
18405+#if PAGETABLE_LEVELS == 3
18406+#include <asm-generic/pgtable-nopud.h>
18407+#endif
18408+
18409+#if PAGETABLE_LEVELS == 2
18410+#include <asm-generic/pgtable-nopmd.h>
18411+#endif
18412+
18413+#ifndef __ASSEMBLY__
18414 #if PAGETABLE_LEVELS > 3
18415 typedef struct { pudval_t pud; } pud_t;
18416
18417@@ -247,8 +262,6 @@ static inline pudval_t native_pud_val(pud_t pud)
18418 return pud.pud;
18419 }
18420 #else
18421-#include <asm-generic/pgtable-nopud.h>
18422-
18423 static inline pudval_t native_pud_val(pud_t pud)
18424 {
18425 return native_pgd_val(pud.pgd);
18426@@ -268,8 +281,6 @@ static inline pmdval_t native_pmd_val(pmd_t pmd)
18427 return pmd.pmd;
18428 }
18429 #else
18430-#include <asm-generic/pgtable-nopmd.h>
18431-
18432 static inline pmdval_t native_pmd_val(pmd_t pmd)
18433 {
18434 return native_pgd_val(pmd.pud.pgd);
18435@@ -362,7 +373,6 @@ typedef struct page *pgtable_t;
18436
18437 extern pteval_t __supported_pte_mask;
18438 extern void set_nx(void);
18439-extern int nx_enabled;
18440
18441 #define pgprot_writecombine pgprot_writecombine
18442 extern pgprot_t pgprot_writecombine(pgprot_t prot);
18443diff --git a/arch/x86/include/asm/preempt.h b/arch/x86/include/asm/preempt.h
18444index 8f327184..368fb29 100644
18445--- a/arch/x86/include/asm/preempt.h
18446+++ b/arch/x86/include/asm/preempt.h
18447@@ -84,7 +84,7 @@ static __always_inline void __preempt_count_sub(int val)
18448 */
18449 static __always_inline bool __preempt_count_dec_and_test(void)
18450 {
18451- GEN_UNARY_RMWcc("decl", __preempt_count, __percpu_arg(0), "e");
18452+ GEN_UNARY_RMWcc("decl", "incl", __preempt_count, __percpu_arg(0), "e");
18453 }
18454
18455 /*
18456diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
18457index ec1c935..5cc6023 100644
18458--- a/arch/x86/include/asm/processor.h
18459+++ b/arch/x86/include/asm/processor.h
18460@@ -127,7 +127,7 @@ struct cpuinfo_x86 {
18461 /* Index into per_cpu list: */
18462 u16 cpu_index;
18463 u32 microcode;
18464-};
18465+} __randomize_layout;
18466
18467 #define X86_VENDOR_INTEL 0
18468 #define X86_VENDOR_CYRIX 1
18469@@ -198,9 +198,21 @@ static inline void native_cpuid(unsigned int *eax, unsigned int *ebx,
18470 : "memory");
18471 }
18472
18473+/* invpcid (%rdx),%rax */
18474+#define __ASM_INVPCID ".byte 0x66,0x0f,0x38,0x82,0x02"
18475+
18476+#define INVPCID_SINGLE_ADDRESS 0UL
18477+#define INVPCID_SINGLE_CONTEXT 1UL
18478+#define INVPCID_ALL_GLOBAL 2UL
18479+#define INVPCID_ALL_NONGLOBAL 3UL
18480+
18481+#define PCID_KERNEL 0UL
18482+#define PCID_USER 1UL
18483+#define PCID_NOFLUSH (1UL << 63)
18484+
18485 static inline void load_cr3(pgd_t *pgdir)
18486 {
18487- write_cr3(__pa(pgdir));
18488+ write_cr3(__pa(pgdir) | PCID_KERNEL);
18489 }
18490
18491 #ifdef CONFIG_X86_32
18492@@ -282,7 +294,7 @@ struct tss_struct {
18493
18494 } ____cacheline_aligned;
18495
18496-DECLARE_PER_CPU_SHARED_ALIGNED(struct tss_struct, init_tss);
18497+extern struct tss_struct init_tss[NR_CPUS];
18498
18499 /*
18500 * Save the original ist values for checking stack pointers during debugging
18501@@ -479,6 +491,7 @@ struct thread_struct {
18502 unsigned short ds;
18503 unsigned short fsindex;
18504 unsigned short gsindex;
18505+ unsigned short ss;
18506 #endif
18507 #ifdef CONFIG_X86_32
18508 unsigned long ip;
18509@@ -805,11 +818,18 @@ static inline void spin_lock_prefetch(const void *x)
18510 */
18511 #define TASK_SIZE PAGE_OFFSET
18512 #define TASK_SIZE_MAX TASK_SIZE
18513+
18514+#ifdef CONFIG_PAX_SEGMEXEC
18515+#define SEGMEXEC_TASK_SIZE (TASK_SIZE / 2)
18516+#define STACK_TOP ((current->mm->pax_flags & MF_PAX_SEGMEXEC)?SEGMEXEC_TASK_SIZE:TASK_SIZE)
18517+#else
18518 #define STACK_TOP TASK_SIZE
18519-#define STACK_TOP_MAX STACK_TOP
18520+#endif
18521+
18522+#define STACK_TOP_MAX TASK_SIZE
18523
18524 #define INIT_THREAD { \
18525- .sp0 = sizeof(init_stack) + (long)&init_stack, \
18526+ .sp0 = sizeof(init_stack) + (long)&init_stack - 8, \
18527 .vm86_info = NULL, \
18528 .sysenter_cs = __KERNEL_CS, \
18529 .io_bitmap_ptr = NULL, \
18530@@ -823,7 +843,7 @@ static inline void spin_lock_prefetch(const void *x)
18531 */
18532 #define INIT_TSS { \
18533 .x86_tss = { \
18534- .sp0 = sizeof(init_stack) + (long)&init_stack, \
18535+ .sp0 = sizeof(init_stack) + (long)&init_stack - 8, \
18536 .ss0 = __KERNEL_DS, \
18537 .ss1 = __KERNEL_CS, \
18538 .io_bitmap_base = INVALID_IO_BITMAP_OFFSET, \
18539@@ -834,11 +854,7 @@ static inline void spin_lock_prefetch(const void *x)
18540 extern unsigned long thread_saved_pc(struct task_struct *tsk);
18541
18542 #define THREAD_SIZE_LONGS (THREAD_SIZE/sizeof(unsigned long))
18543-#define KSTK_TOP(info) \
18544-({ \
18545- unsigned long *__ptr = (unsigned long *)(info); \
18546- (unsigned long)(&__ptr[THREAD_SIZE_LONGS]); \
18547-})
18548+#define KSTK_TOP(info) ((container_of(info, struct task_struct, tinfo))->thread.sp0)
18549
18550 /*
18551 * The below -8 is to reserve 8 bytes on top of the ring0 stack.
18552@@ -853,7 +869,7 @@ extern unsigned long thread_saved_pc(struct task_struct *tsk);
18553 #define task_pt_regs(task) \
18554 ({ \
18555 struct pt_regs *__regs__; \
18556- __regs__ = (struct pt_regs *)(KSTK_TOP(task_stack_page(task))-8); \
18557+ __regs__ = (struct pt_regs *)((task)->thread.sp0); \
18558 __regs__ - 1; \
18559 })
18560
18561@@ -869,13 +885,13 @@ extern unsigned long thread_saved_pc(struct task_struct *tsk);
18562 * particular problem by preventing anything from being mapped
18563 * at the maximum canonical address.
18564 */
18565-#define TASK_SIZE_MAX ((1UL << 47) - PAGE_SIZE)
18566+#define TASK_SIZE_MAX ((1UL << TASK_SIZE_MAX_SHIFT) - PAGE_SIZE)
18567
18568 /* This decides where the kernel will search for a free chunk of vm
18569 * space during mmap's.
18570 */
18571 #define IA32_PAGE_OFFSET ((current->personality & ADDR_LIMIT_3GB) ? \
18572- 0xc0000000 : 0xFFFFe000)
18573+ 0xc0000000 : 0xFFFFf000)
18574
18575 #define TASK_SIZE (test_thread_flag(TIF_ADDR32) ? \
18576 IA32_PAGE_OFFSET : TASK_SIZE_MAX)
18577@@ -886,11 +902,11 @@ extern unsigned long thread_saved_pc(struct task_struct *tsk);
18578 #define STACK_TOP_MAX TASK_SIZE_MAX
18579
18580 #define INIT_THREAD { \
18581- .sp0 = (unsigned long)&init_stack + sizeof(init_stack) \
18582+ .sp0 = (unsigned long)&init_stack + sizeof(init_stack) - 16 \
18583 }
18584
18585 #define INIT_TSS { \
18586- .x86_tss.sp0 = (unsigned long)&init_stack + sizeof(init_stack) \
18587+ .x86_tss.sp0 = (unsigned long)&init_stack + sizeof(init_stack) - 16 \
18588 }
18589
18590 /*
18591@@ -918,6 +934,10 @@ extern void start_thread(struct pt_regs *regs, unsigned long new_ip,
18592 */
18593 #define TASK_UNMAPPED_BASE (PAGE_ALIGN(TASK_SIZE / 3))
18594
18595+#ifdef CONFIG_PAX_SEGMEXEC
18596+#define SEGMEXEC_TASK_UNMAPPED_BASE (PAGE_ALIGN(SEGMEXEC_TASK_SIZE / 3))
18597+#endif
18598+
18599 #define KSTK_EIP(task) (task_pt_regs(task)->ip)
18600
18601 /* Get/set a process' ability to use the timestamp counter instruction */
18602@@ -962,7 +982,7 @@ static inline uint32_t hypervisor_cpuid_base(const char *sig, uint32_t leaves)
18603 return 0;
18604 }
18605
18606-extern unsigned long arch_align_stack(unsigned long sp);
18607+#define arch_align_stack(x) ((x) & ~0xfUL)
18608 extern void free_init_pages(char *what, unsigned long begin, unsigned long end);
18609
18610 void default_idle(void);
18611@@ -972,6 +992,6 @@ bool xen_set_default_idle(void);
18612 #define xen_set_default_idle 0
18613 #endif
18614
18615-void stop_this_cpu(void *dummy);
18616+void stop_this_cpu(void *dummy) __noreturn;
18617 void df_debug(struct pt_regs *regs, long error_code);
18618 #endif /* _ASM_X86_PROCESSOR_H */
18619diff --git a/arch/x86/include/asm/ptrace.h b/arch/x86/include/asm/ptrace.h
18620index 86fc2bb..bd5049a 100644
18621--- a/arch/x86/include/asm/ptrace.h
18622+++ b/arch/x86/include/asm/ptrace.h
18623@@ -89,28 +89,29 @@ static inline unsigned long regs_return_value(struct pt_regs *regs)
18624 }
18625
18626 /*
18627- * user_mode_vm(regs) determines whether a register set came from user mode.
18628+ * user_mode(regs) determines whether a register set came from user mode.
18629 * This is true if V8086 mode was enabled OR if the register set was from
18630 * protected mode with RPL-3 CS value. This tricky test checks that with
18631 * one comparison. Many places in the kernel can bypass this full check
18632- * if they have already ruled out V8086 mode, so user_mode(regs) can be used.
18633+ * if they have already ruled out V8086 mode, so user_mode_novm(regs) can
18634+ * be used.
18635 */
18636-static inline int user_mode(struct pt_regs *regs)
18637+static inline int user_mode_novm(struct pt_regs *regs)
18638 {
18639 #ifdef CONFIG_X86_32
18640 return (regs->cs & SEGMENT_RPL_MASK) == USER_RPL;
18641 #else
18642- return !!(regs->cs & 3);
18643+ return !!(regs->cs & SEGMENT_RPL_MASK);
18644 #endif
18645 }
18646
18647-static inline int user_mode_vm(struct pt_regs *regs)
18648+static inline int user_mode(struct pt_regs *regs)
18649 {
18650 #ifdef CONFIG_X86_32
18651 return ((regs->cs & SEGMENT_RPL_MASK) | (regs->flags & X86_VM_MASK)) >=
18652 USER_RPL;
18653 #else
18654- return user_mode(regs);
18655+ return user_mode_novm(regs);
18656 #endif
18657 }
18658
18659@@ -126,15 +127,16 @@ static inline int v8086_mode(struct pt_regs *regs)
18660 #ifdef CONFIG_X86_64
18661 static inline bool user_64bit_mode(struct pt_regs *regs)
18662 {
18663+ unsigned long cs = regs->cs & 0xffff;
18664 #ifndef CONFIG_PARAVIRT
18665 /*
18666 * On non-paravirt systems, this is the only long mode CPL 3
18667 * selector. We do not allow long mode selectors in the LDT.
18668 */
18669- return regs->cs == __USER_CS;
18670+ return cs == __USER_CS;
18671 #else
18672 /* Headers are too twisted for this to go in paravirt.h. */
18673- return regs->cs == __USER_CS || regs->cs == pv_info.extra_user_64bit_cs;
18674+ return cs == __USER_CS || cs == pv_info.extra_user_64bit_cs;
18675 #endif
18676 }
18677
18678@@ -185,9 +187,11 @@ static inline unsigned long regs_get_register(struct pt_regs *regs,
18679 * Traps from the kernel do not save sp and ss.
18680 * Use the helper function to retrieve sp.
18681 */
18682- if (offset == offsetof(struct pt_regs, sp) &&
18683- regs->cs == __KERNEL_CS)
18684- return kernel_stack_pointer(regs);
18685+ if (offset == offsetof(struct pt_regs, sp)) {
18686+ unsigned long cs = regs->cs & 0xffff;
18687+ if (cs == __KERNEL_CS || cs == __KERNEXEC_KERNEL_CS)
18688+ return kernel_stack_pointer(regs);
18689+ }
18690 #endif
18691 return *(unsigned long *)((unsigned long)regs + offset);
18692 }
18693diff --git a/arch/x86/include/asm/qrwlock.h b/arch/x86/include/asm/qrwlock.h
18694index ae0e241..e80b10b 100644
18695--- a/arch/x86/include/asm/qrwlock.h
18696+++ b/arch/x86/include/asm/qrwlock.h
18697@@ -7,8 +7,8 @@
18698 #define queue_write_unlock queue_write_unlock
18699 static inline void queue_write_unlock(struct qrwlock *lock)
18700 {
18701- barrier();
18702- ACCESS_ONCE(*(u8 *)&lock->cnts) = 0;
18703+ barrier();
18704+ ACCESS_ONCE_RW(*(u8 *)&lock->cnts) = 0;
18705 }
18706 #endif
18707
18708diff --git a/arch/x86/include/asm/realmode.h b/arch/x86/include/asm/realmode.h
18709index 9c6b890..5305f53 100644
18710--- a/arch/x86/include/asm/realmode.h
18711+++ b/arch/x86/include/asm/realmode.h
18712@@ -22,16 +22,14 @@ struct real_mode_header {
18713 #endif
18714 /* APM/BIOS reboot */
18715 u32 machine_real_restart_asm;
18716-#ifdef CONFIG_X86_64
18717 u32 machine_real_restart_seg;
18718-#endif
18719 };
18720
18721 /* This must match data at trampoline_32/64.S */
18722 struct trampoline_header {
18723 #ifdef CONFIG_X86_32
18724 u32 start;
18725- u16 gdt_pad;
18726+ u16 boot_cs;
18727 u16 gdt_limit;
18728 u32 gdt_base;
18729 #else
18730diff --git a/arch/x86/include/asm/reboot.h b/arch/x86/include/asm/reboot.h
18731index a82c4f1..ac45053 100644
18732--- a/arch/x86/include/asm/reboot.h
18733+++ b/arch/x86/include/asm/reboot.h
18734@@ -6,13 +6,13 @@
18735 struct pt_regs;
18736
18737 struct machine_ops {
18738- void (*restart)(char *cmd);
18739- void (*halt)(void);
18740- void (*power_off)(void);
18741+ void (* __noreturn restart)(char *cmd);
18742+ void (* __noreturn halt)(void);
18743+ void (* __noreturn power_off)(void);
18744 void (*shutdown)(void);
18745 void (*crash_shutdown)(struct pt_regs *);
18746- void (*emergency_restart)(void);
18747-};
18748+ void (* __noreturn emergency_restart)(void);
18749+} __no_const;
18750
18751 extern struct machine_ops machine_ops;
18752
18753diff --git a/arch/x86/include/asm/rmwcc.h b/arch/x86/include/asm/rmwcc.h
18754index 8f7866a..e442f20 100644
18755--- a/arch/x86/include/asm/rmwcc.h
18756+++ b/arch/x86/include/asm/rmwcc.h
18757@@ -3,7 +3,34 @@
18758
18759 #ifdef CC_HAVE_ASM_GOTO
18760
18761-#define __GEN_RMWcc(fullop, var, cc, ...) \
18762+#ifdef CONFIG_PAX_REFCOUNT
18763+#define __GEN_RMWcc(fullop, fullantiop, var, cc, ...) \
18764+do { \
18765+ asm_volatile_goto (fullop \
18766+ ";jno 0f\n" \
18767+ fullantiop \
18768+ ";int $4\n0:\n" \
18769+ _ASM_EXTABLE(0b, 0b) \
18770+ ";j" cc " %l[cc_label]" \
18771+ : : "m" (var), ## __VA_ARGS__ \
18772+ : "memory" : cc_label); \
18773+ return 0; \
18774+cc_label: \
18775+ return 1; \
18776+} while (0)
18777+#else
18778+#define __GEN_RMWcc(fullop, fullantiop, var, cc, ...) \
18779+do { \
18780+ asm_volatile_goto (fullop ";j" cc " %l[cc_label]" \
18781+ : : "m" (var), ## __VA_ARGS__ \
18782+ : "memory" : cc_label); \
18783+ return 0; \
18784+cc_label: \
18785+ return 1; \
18786+} while (0)
18787+#endif
18788+
18789+#define __GEN_RMWcc_unchecked(fullop, var, cc, ...) \
18790 do { \
18791 asm_volatile_goto (fullop "; j" cc " %l[cc_label]" \
18792 : : "m" (var), ## __VA_ARGS__ \
18793@@ -13,15 +40,46 @@ cc_label: \
18794 return 1; \
18795 } while (0)
18796
18797-#define GEN_UNARY_RMWcc(op, var, arg0, cc) \
18798- __GEN_RMWcc(op " " arg0, var, cc)
18799+#define GEN_UNARY_RMWcc(op, antiop, var, arg0, cc) \
18800+ __GEN_RMWcc(op " " arg0, antiop " " arg0, var, cc)
18801
18802-#define GEN_BINARY_RMWcc(op, var, vcon, val, arg0, cc) \
18803- __GEN_RMWcc(op " %1, " arg0, var, cc, vcon (val))
18804+#define GEN_UNARY_RMWcc_unchecked(op, var, arg0, cc) \
18805+ __GEN_RMWcc_unchecked(op " " arg0, var, cc)
18806+
18807+#define GEN_BINARY_RMWcc(op, antiop, var, vcon, val, arg0, cc) \
18808+ __GEN_RMWcc(op " %1, " arg0, antiop " %1, " arg0, var, cc, vcon (val))
18809+
18810+#define GEN_BINARY_RMWcc_unchecked(op, var, vcon, val, arg0, cc) \
18811+ __GEN_RMWcc_unchecked(op " %1, " arg0, var, cc, vcon (val))
18812
18813 #else /* !CC_HAVE_ASM_GOTO */
18814
18815-#define __GEN_RMWcc(fullop, var, cc, ...) \
18816+#ifdef CONFIG_PAX_REFCOUNT
18817+#define __GEN_RMWcc(fullop, fullantiop, var, cc, ...) \
18818+do { \
18819+ char c; \
18820+ asm volatile (fullop \
18821+ ";jno 0f\n" \
18822+ fullantiop \
18823+ ";int $4\n0:\n" \
18824+ _ASM_EXTABLE(0b, 0b) \
18825+ "; set" cc " %1" \
18826+ : "+m" (var), "=qm" (c) \
18827+ : __VA_ARGS__ : "memory"); \
18828+ return c != 0; \
18829+} while (0)
18830+#else
18831+#define __GEN_RMWcc(fullop, fullantiop, var, cc, ...) \
18832+do { \
18833+ char c; \
18834+ asm volatile (fullop "; set" cc " %1" \
18835+ : "+m" (var), "=qm" (c) \
18836+ : __VA_ARGS__ : "memory"); \
18837+ return c != 0; \
18838+} while (0)
18839+#endif
18840+
18841+#define __GEN_RMWcc_unchecked(fullop, var, cc, ...) \
18842 do { \
18843 char c; \
18844 asm volatile (fullop "; set" cc " %1" \
18845@@ -30,11 +88,17 @@ do { \
18846 return c != 0; \
18847 } while (0)
18848
18849-#define GEN_UNARY_RMWcc(op, var, arg0, cc) \
18850- __GEN_RMWcc(op " " arg0, var, cc)
18851+#define GEN_UNARY_RMWcc(op, antiop, var, arg0, cc) \
18852+ __GEN_RMWcc(op " " arg0, antiop " " arg0, var, cc)
18853+
18854+#define GEN_UNARY_RMWcc_unchecked(op, var, arg0, cc) \
18855+ __GEN_RMWcc_unchecked(op " " arg0, var, cc)
18856+
18857+#define GEN_BINARY_RMWcc(op, antiop, var, vcon, val, arg0, cc) \
18858+ __GEN_RMWcc(op " %2, " arg0, antiop " %2, " arg0, var, cc, vcon (val))
18859
18860-#define GEN_BINARY_RMWcc(op, var, vcon, val, arg0, cc) \
18861- __GEN_RMWcc(op " %2, " arg0, var, cc, vcon (val))
18862+#define GEN_BINARY_RMWcc_unchecked(op, var, vcon, val, arg0, cc) \
18863+ __GEN_RMWcc_unchecked(op " %2, " arg0, var, cc, vcon (val))
18864
18865 #endif /* CC_HAVE_ASM_GOTO */
18866
18867diff --git a/arch/x86/include/asm/rwsem.h b/arch/x86/include/asm/rwsem.h
18868index cad82c9..2e5c5c1 100644
18869--- a/arch/x86/include/asm/rwsem.h
18870+++ b/arch/x86/include/asm/rwsem.h
18871@@ -64,6 +64,14 @@ static inline void __down_read(struct rw_semaphore *sem)
18872 {
18873 asm volatile("# beginning down_read\n\t"
18874 LOCK_PREFIX _ASM_INC "(%1)\n\t"
18875+
18876+#ifdef CONFIG_PAX_REFCOUNT
18877+ "jno 0f\n"
18878+ LOCK_PREFIX _ASM_DEC "(%1)\n"
18879+ "int $4\n0:\n"
18880+ _ASM_EXTABLE(0b, 0b)
18881+#endif
18882+
18883 /* adds 0x00000001 */
18884 " jns 1f\n"
18885 " call call_rwsem_down_read_failed\n"
18886@@ -85,6 +93,14 @@ static inline int __down_read_trylock(struct rw_semaphore *sem)
18887 "1:\n\t"
18888 " mov %1,%2\n\t"
18889 " add %3,%2\n\t"
18890+
18891+#ifdef CONFIG_PAX_REFCOUNT
18892+ "jno 0f\n"
18893+ "sub %3,%2\n"
18894+ "int $4\n0:\n"
18895+ _ASM_EXTABLE(0b, 0b)
18896+#endif
18897+
18898 " jle 2f\n\t"
18899 LOCK_PREFIX " cmpxchg %2,%0\n\t"
18900 " jnz 1b\n\t"
18901@@ -104,6 +120,14 @@ static inline void __down_write_nested(struct rw_semaphore *sem, int subclass)
18902 long tmp;
18903 asm volatile("# beginning down_write\n\t"
18904 LOCK_PREFIX " xadd %1,(%2)\n\t"
18905+
18906+#ifdef CONFIG_PAX_REFCOUNT
18907+ "jno 0f\n"
18908+ "mov %1,(%2)\n"
18909+ "int $4\n0:\n"
18910+ _ASM_EXTABLE(0b, 0b)
18911+#endif
18912+
18913 /* adds 0xffff0001, returns the old value */
18914 " test " __ASM_SEL(%w1,%k1) "," __ASM_SEL(%w1,%k1) "\n\t"
18915 /* was the active mask 0 before? */
18916@@ -155,6 +179,14 @@ static inline void __up_read(struct rw_semaphore *sem)
18917 long tmp;
18918 asm volatile("# beginning __up_read\n\t"
18919 LOCK_PREFIX " xadd %1,(%2)\n\t"
18920+
18921+#ifdef CONFIG_PAX_REFCOUNT
18922+ "jno 0f\n"
18923+ "mov %1,(%2)\n"
18924+ "int $4\n0:\n"
18925+ _ASM_EXTABLE(0b, 0b)
18926+#endif
18927+
18928 /* subtracts 1, returns the old value */
18929 " jns 1f\n\t"
18930 " call call_rwsem_wake\n" /* expects old value in %edx */
18931@@ -173,6 +205,14 @@ static inline void __up_write(struct rw_semaphore *sem)
18932 long tmp;
18933 asm volatile("# beginning __up_write\n\t"
18934 LOCK_PREFIX " xadd %1,(%2)\n\t"
18935+
18936+#ifdef CONFIG_PAX_REFCOUNT
18937+ "jno 0f\n"
18938+ "mov %1,(%2)\n"
18939+ "int $4\n0:\n"
18940+ _ASM_EXTABLE(0b, 0b)
18941+#endif
18942+
18943 /* subtracts 0xffff0001, returns the old value */
18944 " jns 1f\n\t"
18945 " call call_rwsem_wake\n" /* expects old value in %edx */
18946@@ -190,6 +230,14 @@ static inline void __downgrade_write(struct rw_semaphore *sem)
18947 {
18948 asm volatile("# beginning __downgrade_write\n\t"
18949 LOCK_PREFIX _ASM_ADD "%2,(%1)\n\t"
18950+
18951+#ifdef CONFIG_PAX_REFCOUNT
18952+ "jno 0f\n"
18953+ LOCK_PREFIX _ASM_SUB "%2,(%1)\n"
18954+ "int $4\n0:\n"
18955+ _ASM_EXTABLE(0b, 0b)
18956+#endif
18957+
18958 /*
18959 * transitions 0xZZZZ0001 -> 0xYYYY0001 (i386)
18960 * 0xZZZZZZZZ00000001 -> 0xYYYYYYYY00000001 (x86_64)
18961@@ -208,7 +256,15 @@ static inline void __downgrade_write(struct rw_semaphore *sem)
18962 */
18963 static inline void rwsem_atomic_add(long delta, struct rw_semaphore *sem)
18964 {
18965- asm volatile(LOCK_PREFIX _ASM_ADD "%1,%0"
18966+ asm volatile(LOCK_PREFIX _ASM_ADD "%1,%0\n"
18967+
18968+#ifdef CONFIG_PAX_REFCOUNT
18969+ "jno 0f\n"
18970+ LOCK_PREFIX _ASM_SUB "%1,%0\n"
18971+ "int $4\n0:\n"
18972+ _ASM_EXTABLE(0b, 0b)
18973+#endif
18974+
18975 : "+m" (sem->count)
18976 : "er" (delta));
18977 }
18978@@ -218,7 +274,7 @@ static inline void rwsem_atomic_add(long delta, struct rw_semaphore *sem)
18979 */
18980 static inline long rwsem_atomic_update(long delta, struct rw_semaphore *sem)
18981 {
18982- return delta + xadd(&sem->count, delta);
18983+ return delta + xadd_check_overflow(&sem->count, delta);
18984 }
18985
18986 #endif /* __KERNEL__ */
18987diff --git a/arch/x86/include/asm/segment.h b/arch/x86/include/asm/segment.h
18988index e657b7b..81fefb444 100644
18989--- a/arch/x86/include/asm/segment.h
18990+++ b/arch/x86/include/asm/segment.h
18991@@ -73,10 +73,15 @@
18992 * 26 - ESPFIX small SS
18993 * 27 - per-cpu [ offset to per-cpu data area ]
18994 * 28 - stack_canary-20 [ for stack protector ]
18995- * 29 - unused
18996- * 30 - unused
18997+ * 29 - PCI BIOS CS
18998+ * 30 - PCI BIOS DS
18999 * 31 - TSS for double fault handler
19000 */
19001+#define GDT_ENTRY_KERNEXEC_EFI_CS (1)
19002+#define GDT_ENTRY_KERNEXEC_EFI_DS (2)
19003+#define __KERNEXEC_EFI_CS (GDT_ENTRY_KERNEXEC_EFI_CS*8)
19004+#define __KERNEXEC_EFI_DS (GDT_ENTRY_KERNEXEC_EFI_DS*8)
19005+
19006 #define GDT_ENTRY_TLS_MIN 6
19007 #define GDT_ENTRY_TLS_MAX (GDT_ENTRY_TLS_MIN + GDT_ENTRY_TLS_ENTRIES - 1)
19008
19009@@ -88,6 +93,8 @@
19010
19011 #define GDT_ENTRY_KERNEL_CS (GDT_ENTRY_KERNEL_BASE+0)
19012
19013+#define GDT_ENTRY_KERNEXEC_KERNEL_CS (4)
19014+
19015 #define GDT_ENTRY_KERNEL_DS (GDT_ENTRY_KERNEL_BASE+1)
19016
19017 #define GDT_ENTRY_TSS (GDT_ENTRY_KERNEL_BASE+4)
19018@@ -113,6 +120,12 @@
19019 #define __KERNEL_STACK_CANARY 0
19020 #endif
19021
19022+#define GDT_ENTRY_PCIBIOS_CS (GDT_ENTRY_KERNEL_BASE+17)
19023+#define __PCIBIOS_CS (GDT_ENTRY_PCIBIOS_CS * 8)
19024+
19025+#define GDT_ENTRY_PCIBIOS_DS (GDT_ENTRY_KERNEL_BASE+18)
19026+#define __PCIBIOS_DS (GDT_ENTRY_PCIBIOS_DS * 8)
19027+
19028 #define GDT_ENTRY_DOUBLEFAULT_TSS 31
19029
19030 /*
19031@@ -140,7 +153,7 @@
19032 */
19033
19034 /* Matches PNP_CS32 and PNP_CS16 (they must be consecutive) */
19035-#define SEGMENT_IS_PNP_CODE(x) (((x) & 0xf4) == GDT_ENTRY_PNPBIOS_BASE * 8)
19036+#define SEGMENT_IS_PNP_CODE(x) (((x) & 0xFFFCU) == PNP_CS32 || ((x) & 0xFFFCU) == PNP_CS16)
19037
19038
19039 #else
19040@@ -164,6 +177,8 @@
19041 #define __USER32_CS (GDT_ENTRY_DEFAULT_USER32_CS*8+3)
19042 #define __USER32_DS __USER_DS
19043
19044+#define GDT_ENTRY_KERNEXEC_KERNEL_CS 7
19045+
19046 #define GDT_ENTRY_TSS 8 /* needs two entries */
19047 #define GDT_ENTRY_LDT 10 /* needs two entries */
19048 #define GDT_ENTRY_TLS_MIN 12
19049@@ -172,6 +187,8 @@
19050 #define GDT_ENTRY_PER_CPU 15 /* Abused to load per CPU data from limit */
19051 #define __PER_CPU_SEG (GDT_ENTRY_PER_CPU * 8 + 3)
19052
19053+#define GDT_ENTRY_UDEREF_KERNEL_DS 16
19054+
19055 /* TLS indexes for 64bit - hardcoded in arch_prctl */
19056 #define FS_TLS 0
19057 #define GS_TLS 1
19058@@ -179,12 +196,14 @@
19059 #define GS_TLS_SEL ((GDT_ENTRY_TLS_MIN+GS_TLS)*8 + 3)
19060 #define FS_TLS_SEL ((GDT_ENTRY_TLS_MIN+FS_TLS)*8 + 3)
19061
19062-#define GDT_ENTRIES 16
19063+#define GDT_ENTRIES 17
19064
19065 #endif
19066
19067 #define __KERNEL_CS (GDT_ENTRY_KERNEL_CS*8)
19068+#define __KERNEXEC_KERNEL_CS (GDT_ENTRY_KERNEXEC_KERNEL_CS*8)
19069 #define __KERNEL_DS (GDT_ENTRY_KERNEL_DS*8)
19070+#define __UDEREF_KERNEL_DS (GDT_ENTRY_UDEREF_KERNEL_DS*8)
19071 #define __USER_DS (GDT_ENTRY_DEFAULT_USER_DS*8+3)
19072 #define __USER_CS (GDT_ENTRY_DEFAULT_USER_CS*8+3)
19073 #ifndef CONFIG_PARAVIRT
19074@@ -267,7 +286,7 @@ static inline unsigned long get_limit(unsigned long segment)
19075 {
19076 unsigned long __limit;
19077 asm("lsll %1,%0" : "=r" (__limit) : "r" (segment));
19078- return __limit + 1;
19079+ return __limit;
19080 }
19081
19082 #endif /* !__ASSEMBLY__ */
19083diff --git a/arch/x86/include/asm/smap.h b/arch/x86/include/asm/smap.h
19084index 8d3120f..352b440 100644
19085--- a/arch/x86/include/asm/smap.h
19086+++ b/arch/x86/include/asm/smap.h
19087@@ -25,11 +25,40 @@
19088
19089 #include <asm/alternative-asm.h>
19090
19091+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
19092+#define ASM_PAX_OPEN_USERLAND \
19093+ 661: jmp 663f; \
19094+ .pushsection .altinstr_replacement, "a" ; \
19095+ 662: pushq %rax; nop; \
19096+ .popsection ; \
19097+ .pushsection .altinstructions, "a" ; \
19098+ altinstruction_entry 661b, 662b, X86_FEATURE_STRONGUDEREF, 2, 2;\
19099+ .popsection ; \
19100+ call __pax_open_userland; \
19101+ popq %rax; \
19102+ 663:
19103+
19104+#define ASM_PAX_CLOSE_USERLAND \
19105+ 661: jmp 663f; \
19106+ .pushsection .altinstr_replacement, "a" ; \
19107+ 662: pushq %rax; nop; \
19108+ .popsection; \
19109+ .pushsection .altinstructions, "a" ; \
19110+ altinstruction_entry 661b, 662b, X86_FEATURE_STRONGUDEREF, 2, 2;\
19111+ .popsection; \
19112+ call __pax_close_userland; \
19113+ popq %rax; \
19114+ 663:
19115+#else
19116+#define ASM_PAX_OPEN_USERLAND
19117+#define ASM_PAX_CLOSE_USERLAND
19118+#endif
19119+
19120 #ifdef CONFIG_X86_SMAP
19121
19122 #define ASM_CLAC \
19123 661: ASM_NOP3 ; \
19124- .pushsection .altinstr_replacement, "ax" ; \
19125+ .pushsection .altinstr_replacement, "a" ; \
19126 662: __ASM_CLAC ; \
19127 .popsection ; \
19128 .pushsection .altinstructions, "a" ; \
19129@@ -38,7 +67,7 @@
19130
19131 #define ASM_STAC \
19132 661: ASM_NOP3 ; \
19133- .pushsection .altinstr_replacement, "ax" ; \
19134+ .pushsection .altinstr_replacement, "a" ; \
19135 662: __ASM_STAC ; \
19136 .popsection ; \
19137 .pushsection .altinstructions, "a" ; \
19138@@ -56,6 +85,37 @@
19139
19140 #include <asm/alternative.h>
19141
19142+#define __HAVE_ARCH_PAX_OPEN_USERLAND
19143+#define __HAVE_ARCH_PAX_CLOSE_USERLAND
19144+
19145+extern void __pax_open_userland(void);
19146+static __always_inline unsigned long pax_open_userland(void)
19147+{
19148+
19149+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
19150+ asm volatile(ALTERNATIVE(ASM_NOP5, "call %P[open]", X86_FEATURE_STRONGUDEREF)
19151+ :
19152+ : [open] "i" (__pax_open_userland)
19153+ : "memory", "rax");
19154+#endif
19155+
19156+ return 0;
19157+}
19158+
19159+extern void __pax_close_userland(void);
19160+static __always_inline unsigned long pax_close_userland(void)
19161+{
19162+
19163+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
19164+ asm volatile(ALTERNATIVE(ASM_NOP5, "call %P[close]", X86_FEATURE_STRONGUDEREF)
19165+ :
19166+ : [close] "i" (__pax_close_userland)
19167+ : "memory", "rax");
19168+#endif
19169+
19170+ return 0;
19171+}
19172+
19173 #ifdef CONFIG_X86_SMAP
19174
19175 static __always_inline void clac(void)
19176diff --git a/arch/x86/include/asm/smp.h b/arch/x86/include/asm/smp.h
19177index 8cd1cc3..827e09e 100644
19178--- a/arch/x86/include/asm/smp.h
19179+++ b/arch/x86/include/asm/smp.h
19180@@ -35,7 +35,7 @@ DECLARE_PER_CPU_READ_MOSTLY(cpumask_var_t, cpu_core_map);
19181 /* cpus sharing the last level cache: */
19182 DECLARE_PER_CPU_READ_MOSTLY(cpumask_var_t, cpu_llc_shared_map);
19183 DECLARE_PER_CPU_READ_MOSTLY(u16, cpu_llc_id);
19184-DECLARE_PER_CPU_READ_MOSTLY(int, cpu_number);
19185+DECLARE_PER_CPU_READ_MOSTLY(unsigned int, cpu_number);
19186
19187 static inline struct cpumask *cpu_sibling_mask(int cpu)
19188 {
19189@@ -78,7 +78,7 @@ struct smp_ops {
19190
19191 void (*send_call_func_ipi)(const struct cpumask *mask);
19192 void (*send_call_func_single_ipi)(int cpu);
19193-};
19194+} __no_const;
19195
19196 /* Globals due to paravirt */
19197 extern void set_cpu_sibling_map(int cpu);
19198@@ -191,14 +191,8 @@ extern unsigned disabled_cpus;
19199 extern int safe_smp_processor_id(void);
19200
19201 #elif defined(CONFIG_X86_64_SMP)
19202-#define raw_smp_processor_id() (this_cpu_read(cpu_number))
19203-
19204-#define stack_smp_processor_id() \
19205-({ \
19206- struct thread_info *ti; \
19207- __asm__("andq %%rsp,%0; ":"=r" (ti) : "0" (CURRENT_MASK)); \
19208- ti->cpu; \
19209-})
19210+#define raw_smp_processor_id() (this_cpu_read(cpu_number))
19211+#define stack_smp_processor_id() raw_smp_processor_id()
19212 #define safe_smp_processor_id() smp_processor_id()
19213
19214 #endif
19215diff --git a/arch/x86/include/asm/stackprotector.h b/arch/x86/include/asm/stackprotector.h
19216index 6a99859..03cb807 100644
19217--- a/arch/x86/include/asm/stackprotector.h
19218+++ b/arch/x86/include/asm/stackprotector.h
19219@@ -47,7 +47,7 @@
19220 * head_32 for boot CPU and setup_per_cpu_areas() for others.
19221 */
19222 #define GDT_STACK_CANARY_INIT \
19223- [GDT_ENTRY_STACK_CANARY] = GDT_ENTRY_INIT(0x4090, 0, 0x18),
19224+ [GDT_ENTRY_STACK_CANARY] = GDT_ENTRY_INIT(0x4090, 0, 0x17),
19225
19226 /*
19227 * Initialize the stackprotector canary value.
19228@@ -112,7 +112,7 @@ static inline void setup_stack_canary_segment(int cpu)
19229
19230 static inline void load_stack_canary_segment(void)
19231 {
19232-#ifdef CONFIG_X86_32
19233+#if defined(CONFIG_X86_32) && !defined(CONFIG_PAX_MEMORY_UDEREF)
19234 asm volatile ("mov %0, %%gs" : : "r" (0));
19235 #endif
19236 }
19237diff --git a/arch/x86/include/asm/stacktrace.h b/arch/x86/include/asm/stacktrace.h
19238index 70bbe39..4ae2bd4 100644
19239--- a/arch/x86/include/asm/stacktrace.h
19240+++ b/arch/x86/include/asm/stacktrace.h
19241@@ -11,28 +11,20 @@
19242
19243 extern int kstack_depth_to_print;
19244
19245-struct thread_info;
19246+struct task_struct;
19247 struct stacktrace_ops;
19248
19249-typedef unsigned long (*walk_stack_t)(struct thread_info *tinfo,
19250- unsigned long *stack,
19251- unsigned long bp,
19252- const struct stacktrace_ops *ops,
19253- void *data,
19254- unsigned long *end,
19255- int *graph);
19256+typedef unsigned long walk_stack_t(struct task_struct *task,
19257+ void *stack_start,
19258+ unsigned long *stack,
19259+ unsigned long bp,
19260+ const struct stacktrace_ops *ops,
19261+ void *data,
19262+ unsigned long *end,
19263+ int *graph);
19264
19265-extern unsigned long
19266-print_context_stack(struct thread_info *tinfo,
19267- unsigned long *stack, unsigned long bp,
19268- const struct stacktrace_ops *ops, void *data,
19269- unsigned long *end, int *graph);
19270-
19271-extern unsigned long
19272-print_context_stack_bp(struct thread_info *tinfo,
19273- unsigned long *stack, unsigned long bp,
19274- const struct stacktrace_ops *ops, void *data,
19275- unsigned long *end, int *graph);
19276+extern walk_stack_t print_context_stack;
19277+extern walk_stack_t print_context_stack_bp;
19278
19279 /* Generic stack tracer with callbacks */
19280
19281@@ -40,7 +32,7 @@ struct stacktrace_ops {
19282 void (*address)(void *data, unsigned long address, int reliable);
19283 /* On negative return stop dumping */
19284 int (*stack)(void *data, char *name);
19285- walk_stack_t walk_stack;
19286+ walk_stack_t *walk_stack;
19287 };
19288
19289 void dump_trace(struct task_struct *tsk, struct pt_regs *regs,
19290diff --git a/arch/x86/include/asm/switch_to.h b/arch/x86/include/asm/switch_to.h
19291index 751bf4b..a1278b5 100644
19292--- a/arch/x86/include/asm/switch_to.h
19293+++ b/arch/x86/include/asm/switch_to.h
19294@@ -112,7 +112,7 @@ do { \
19295 "call __switch_to\n\t" \
19296 "movq "__percpu_arg([current_task])",%%rsi\n\t" \
19297 __switch_canary \
19298- "movq %P[thread_info](%%rsi),%%r8\n\t" \
19299+ "movq "__percpu_arg([thread_info])",%%r8\n\t" \
19300 "movq %%rax,%%rdi\n\t" \
19301 "testl %[_tif_fork],%P[ti_flags](%%r8)\n\t" \
19302 "jnz ret_from_fork\n\t" \
19303@@ -123,7 +123,7 @@ do { \
19304 [threadrsp] "i" (offsetof(struct task_struct, thread.sp)), \
19305 [ti_flags] "i" (offsetof(struct thread_info, flags)), \
19306 [_tif_fork] "i" (_TIF_FORK), \
19307- [thread_info] "i" (offsetof(struct task_struct, stack)), \
19308+ [thread_info] "m" (current_tinfo), \
19309 [current_task] "m" (current_task) \
19310 __switch_canary_iparam \
19311 : "memory", "cc" __EXTRA_CLOBBER)
19312diff --git a/arch/x86/include/asm/thread_info.h b/arch/x86/include/asm/thread_info.h
19313index 1d4e4f2..506db18 100644
19314--- a/arch/x86/include/asm/thread_info.h
19315+++ b/arch/x86/include/asm/thread_info.h
19316@@ -24,7 +24,6 @@ struct exec_domain;
19317 #include <linux/atomic.h>
19318
19319 struct thread_info {
19320- struct task_struct *task; /* main task structure */
19321 struct exec_domain *exec_domain; /* execution domain */
19322 __u32 flags; /* low level flags */
19323 __u32 status; /* thread synchronous flags */
19324@@ -32,13 +31,13 @@ struct thread_info {
19325 int saved_preempt_count;
19326 mm_segment_t addr_limit;
19327 void __user *sysenter_return;
19328+ unsigned long lowest_stack;
19329 unsigned int sig_on_uaccess_error:1;
19330 unsigned int uaccess_err:1; /* uaccess failed */
19331 };
19332
19333-#define INIT_THREAD_INFO(tsk) \
19334+#define INIT_THREAD_INFO \
19335 { \
19336- .task = &tsk, \
19337 .exec_domain = &default_exec_domain, \
19338 .flags = 0, \
19339 .cpu = 0, \
19340@@ -46,7 +45,7 @@ struct thread_info {
19341 .addr_limit = KERNEL_DS, \
19342 }
19343
19344-#define init_thread_info (init_thread_union.thread_info)
19345+#define init_thread_info (init_thread_union.stack)
19346 #define init_stack (init_thread_union.stack)
19347
19348 #else /* !__ASSEMBLY__ */
19349@@ -86,6 +85,7 @@ struct thread_info {
19350 #define TIF_SYSCALL_TRACEPOINT 28 /* syscall tracepoint instrumentation */
19351 #define TIF_ADDR32 29 /* 32-bit address space on 64 bits */
19352 #define TIF_X32 30 /* 32-bit native x86-64 binary */
19353+#define TIF_GRSEC_SETXID 31 /* update credentials on syscall entry/exit */
19354
19355 #define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE)
19356 #define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME)
19357@@ -109,17 +109,18 @@ struct thread_info {
19358 #define _TIF_SYSCALL_TRACEPOINT (1 << TIF_SYSCALL_TRACEPOINT)
19359 #define _TIF_ADDR32 (1 << TIF_ADDR32)
19360 #define _TIF_X32 (1 << TIF_X32)
19361+#define _TIF_GRSEC_SETXID (1 << TIF_GRSEC_SETXID)
19362
19363 /* work to do in syscall_trace_enter() */
19364 #define _TIF_WORK_SYSCALL_ENTRY \
19365 (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_EMU | _TIF_SYSCALL_AUDIT | \
19366 _TIF_SECCOMP | _TIF_SINGLESTEP | _TIF_SYSCALL_TRACEPOINT | \
19367- _TIF_NOHZ)
19368+ _TIF_NOHZ | _TIF_GRSEC_SETXID)
19369
19370 /* work to do in syscall_trace_leave() */
19371 #define _TIF_WORK_SYSCALL_EXIT \
19372 (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | _TIF_SINGLESTEP | \
19373- _TIF_SYSCALL_TRACEPOINT | _TIF_NOHZ)
19374+ _TIF_SYSCALL_TRACEPOINT | _TIF_NOHZ | _TIF_GRSEC_SETXID)
19375
19376 /* work to do on interrupt/exception return */
19377 #define _TIF_WORK_MASK \
19378@@ -130,7 +131,7 @@ struct thread_info {
19379 /* work to do on any return to user space */
19380 #define _TIF_ALLWORK_MASK \
19381 ((0x0000FFFF & ~_TIF_SECCOMP) | _TIF_SYSCALL_TRACEPOINT | \
19382- _TIF_NOHZ)
19383+ _TIF_NOHZ | _TIF_GRSEC_SETXID)
19384
19385 /* Only used for 64 bit */
19386 #define _TIF_DO_NOTIFY_MASK \
19387@@ -145,7 +146,6 @@ struct thread_info {
19388 #define _TIF_WORK_CTXSW_NEXT (_TIF_WORK_CTXSW)
19389
19390 #define STACK_WARN (THREAD_SIZE/8)
19391-#define KERNEL_STACK_OFFSET (5*(BITS_PER_LONG/8))
19392
19393 /*
19394 * macros/functions for gaining access to the thread information structure
19395@@ -156,12 +156,11 @@ struct thread_info {
19396
19397 DECLARE_PER_CPU(unsigned long, kernel_stack);
19398
19399+DECLARE_PER_CPU(struct thread_info *, current_tinfo);
19400+
19401 static inline struct thread_info *current_thread_info(void)
19402 {
19403- struct thread_info *ti;
19404- ti = (void *)(this_cpu_read_stable(kernel_stack) +
19405- KERNEL_STACK_OFFSET - THREAD_SIZE);
19406- return ti;
19407+ return this_cpu_read_stable(current_tinfo);
19408 }
19409
19410 static inline unsigned long current_stack_pointer(void)
19411@@ -179,14 +178,7 @@ static inline unsigned long current_stack_pointer(void)
19412
19413 /* how to get the thread information struct from ASM */
19414 #define GET_THREAD_INFO(reg) \
19415- _ASM_MOV PER_CPU_VAR(kernel_stack),reg ; \
19416- _ASM_SUB $(THREAD_SIZE-KERNEL_STACK_OFFSET),reg ;
19417-
19418-/*
19419- * Same if PER_CPU_VAR(kernel_stack) is, perhaps with some offset, already in
19420- * a certain register (to be used in assembler memory operands).
19421- */
19422-#define THREAD_INFO(reg, off) KERNEL_STACK_OFFSET+(off)-THREAD_SIZE(reg)
19423+ _ASM_MOV PER_CPU_VAR(current_tinfo),reg ;
19424
19425 #endif
19426
19427@@ -242,5 +234,12 @@ static inline bool is_ia32_task(void)
19428 extern void arch_task_cache_init(void);
19429 extern int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src);
19430 extern void arch_release_task_struct(struct task_struct *tsk);
19431+
19432+#define __HAVE_THREAD_FUNCTIONS
19433+#define task_thread_info(task) (&(task)->tinfo)
19434+#define task_stack_page(task) ((task)->stack)
19435+#define setup_thread_stack(p, org) do {} while (0)
19436+#define end_of_stack(p) ((unsigned long *)task_stack_page(p) + 1)
19437+
19438 #endif
19439 #endif /* _ASM_X86_THREAD_INFO_H */
19440diff --git a/arch/x86/include/asm/tlbflush.h b/arch/x86/include/asm/tlbflush.h
19441index cd79194..e7a9491 100644
19442--- a/arch/x86/include/asm/tlbflush.h
19443+++ b/arch/x86/include/asm/tlbflush.h
19444@@ -86,18 +86,44 @@ static inline void cr4_set_bits_and_update_boot(unsigned long mask)
19445
19446 static inline void __native_flush_tlb(void)
19447 {
19448+ if (static_cpu_has(X86_FEATURE_INVPCID)) {
19449+ u64 descriptor[2];
19450+
19451+ descriptor[0] = PCID_KERNEL;
19452+ asm volatile(__ASM_INVPCID : : "d"(&descriptor), "a"(INVPCID_ALL_NONGLOBAL) : "memory");
19453+ return;
19454+ }
19455+
19456+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
19457+ if (static_cpu_has(X86_FEATURE_PCID)) {
19458+ unsigned int cpu = raw_get_cpu();
19459+
19460+ native_write_cr3(__pa(get_cpu_pgd(cpu, user)) | PCID_USER);
19461+ native_write_cr3(__pa(get_cpu_pgd(cpu, kernel)) | PCID_KERNEL);
19462+ raw_put_cpu_no_resched();
19463+ return;
19464+ }
19465+#endif
19466+
19467 native_write_cr3(native_read_cr3());
19468 }
19469
19470 static inline void __native_flush_tlb_global_irq_disabled(void)
19471 {
19472- unsigned long cr4;
19473+ if (static_cpu_has(X86_FEATURE_INVPCID)) {
19474+ u64 descriptor[2];
19475
19476- cr4 = this_cpu_read(cpu_tlbstate.cr4);
19477- /* clear PGE */
19478- native_write_cr4(cr4 & ~X86_CR4_PGE);
19479- /* write old PGE again and flush TLBs */
19480- native_write_cr4(cr4);
19481+ descriptor[0] = PCID_KERNEL;
19482+ asm volatile(__ASM_INVPCID : : "d"(&descriptor), "a"(INVPCID_ALL_GLOBAL) : "memory");
19483+ } else {
19484+ unsigned long cr4;
19485+
19486+ cr4 = this_cpu_read(cpu_tlbstate.cr4);
19487+ /* clear PGE */
19488+ native_write_cr4(cr4 & ~X86_CR4_PGE);
19489+ /* write old PGE again and flush TLBs */
19490+ native_write_cr4(cr4);
19491+ }
19492 }
19493
19494 static inline void __native_flush_tlb_global(void)
19495@@ -118,6 +144,41 @@ static inline void __native_flush_tlb_global(void)
19496
19497 static inline void __native_flush_tlb_single(unsigned long addr)
19498 {
19499+ if (static_cpu_has(X86_FEATURE_INVPCID)) {
19500+ u64 descriptor[2];
19501+
19502+ descriptor[0] = PCID_KERNEL;
19503+ descriptor[1] = addr;
19504+
19505+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
19506+ if (!static_cpu_has(X86_FEATURE_STRONGUDEREF) || addr >= TASK_SIZE_MAX) {
19507+ if (addr < TASK_SIZE_MAX)
19508+ descriptor[1] += pax_user_shadow_base;
19509+ asm volatile(__ASM_INVPCID : : "d"(&descriptor), "a"(INVPCID_SINGLE_ADDRESS) : "memory");
19510+ }
19511+
19512+ descriptor[0] = PCID_USER;
19513+ descriptor[1] = addr;
19514+#endif
19515+
19516+ asm volatile(__ASM_INVPCID : : "d"(&descriptor), "a"(INVPCID_SINGLE_ADDRESS) : "memory");
19517+ return;
19518+ }
19519+
19520+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
19521+ if (static_cpu_has(X86_FEATURE_PCID)) {
19522+ unsigned int cpu = raw_get_cpu();
19523+
19524+ native_write_cr3(__pa(get_cpu_pgd(cpu, user)) | PCID_USER | PCID_NOFLUSH);
19525+ asm volatile("invlpg (%0)" ::"r" (addr) : "memory");
19526+ native_write_cr3(__pa(get_cpu_pgd(cpu, kernel)) | PCID_KERNEL | PCID_NOFLUSH);
19527+ raw_put_cpu_no_resched();
19528+
19529+ if (!static_cpu_has(X86_FEATURE_STRONGUDEREF) && addr < TASK_SIZE_MAX)
19530+ addr += pax_user_shadow_base;
19531+ }
19532+#endif
19533+
19534 asm volatile("invlpg (%0)" ::"r" (addr) : "memory");
19535 }
19536
19537diff --git a/arch/x86/include/asm/uaccess.h b/arch/x86/include/asm/uaccess.h
19538index ace9dec..3f9e253 100644
19539--- a/arch/x86/include/asm/uaccess.h
19540+++ b/arch/x86/include/asm/uaccess.h
19541@@ -7,6 +7,7 @@
19542 #include <linux/compiler.h>
19543 #include <linux/thread_info.h>
19544 #include <linux/string.h>
19545+#include <linux/spinlock.h>
19546 #include <asm/asm.h>
19547 #include <asm/page.h>
19548 #include <asm/smap.h>
19549@@ -29,7 +30,12 @@
19550
19551 #define get_ds() (KERNEL_DS)
19552 #define get_fs() (current_thread_info()->addr_limit)
19553+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_MEMORY_UDEREF)
19554+void __set_fs(mm_segment_t x);
19555+void set_fs(mm_segment_t x);
19556+#else
19557 #define set_fs(x) (current_thread_info()->addr_limit = (x))
19558+#endif
19559
19560 #define segment_eq(a, b) ((a).seg == (b).seg)
19561
19562@@ -85,8 +91,36 @@ static inline bool __chk_range_not_ok(unsigned long addr, unsigned long size, un
19563 * checks that the pointer is in the user space range - after calling
19564 * this function, memory access functions may still return -EFAULT.
19565 */
19566-#define access_ok(type, addr, size) \
19567- likely(!__range_not_ok(addr, size, user_addr_max()))
19568+extern int _cond_resched(void);
19569+#define access_ok_noprefault(type, addr, size) (likely(!__range_not_ok(addr, size, user_addr_max())))
19570+#define access_ok(type, addr, size) \
19571+({ \
19572+ unsigned long __size = size; \
19573+ unsigned long __addr = (unsigned long)addr; \
19574+ bool __ret_ao = __range_not_ok(__addr, __size, user_addr_max()) == 0;\
19575+ if (__ret_ao && __size) { \
19576+ unsigned long __addr_ao = __addr & PAGE_MASK; \
19577+ unsigned long __end_ao = __addr + __size - 1; \
19578+ if (unlikely((__end_ao ^ __addr_ao) & PAGE_MASK)) { \
19579+ while (__addr_ao <= __end_ao) { \
19580+ char __c_ao; \
19581+ __addr_ao += PAGE_SIZE; \
19582+ if (__size > PAGE_SIZE) \
19583+ _cond_resched(); \
19584+ if (__get_user(__c_ao, (char __user *)__addr)) \
19585+ break; \
19586+ if (type != VERIFY_WRITE) { \
19587+ __addr = __addr_ao; \
19588+ continue; \
19589+ } \
19590+ if (__put_user(__c_ao, (char __user *)__addr)) \
19591+ break; \
19592+ __addr = __addr_ao; \
19593+ } \
19594+ } \
19595+ } \
19596+ __ret_ao; \
19597+})
19598
19599 /*
19600 * The exception table consists of pairs of addresses relative to the
19601@@ -134,11 +168,13 @@ extern int __get_user_8(void);
19602 extern int __get_user_bad(void);
19603
19604 /*
19605- * This is a type: either unsigned long, if the argument fits into
19606- * that type, or otherwise unsigned long long.
19607+ * This is a type: either (un)signed int, if the argument fits into
19608+ * that type, or otherwise (un)signed long long.
19609 */
19610 #define __inttype(x) \
19611-__typeof__(__builtin_choose_expr(sizeof(x) > sizeof(0UL), 0ULL, 0UL))
19612+__typeof__(__builtin_choose_expr(sizeof(x) > sizeof(0U), \
19613+ __builtin_choose_expr(__type_is_unsigned(__typeof__(x)), 0ULL, 0LL),\
19614+ __builtin_choose_expr(__type_is_unsigned(__typeof__(x)), 0U, 0)))
19615
19616 /**
19617 * get_user: - Get a simple variable from user space.
19618@@ -176,10 +212,12 @@ __typeof__(__builtin_choose_expr(sizeof(x) > sizeof(0UL), 0ULL, 0UL))
19619 register __inttype(*(ptr)) __val_gu asm("%"_ASM_DX); \
19620 __chk_user_ptr(ptr); \
19621 might_fault(); \
19622+ pax_open_userland(); \
19623 asm volatile("call __get_user_%P3" \
19624 : "=a" (__ret_gu), "=r" (__val_gu) \
19625 : "0" (ptr), "i" (sizeof(*(ptr)))); \
19626 (x) = (__force __typeof__(*(ptr))) __val_gu; \
19627+ pax_close_userland(); \
19628 __ret_gu; \
19629 })
19630
19631@@ -187,13 +225,21 @@ __typeof__(__builtin_choose_expr(sizeof(x) > sizeof(0UL), 0ULL, 0UL))
19632 asm volatile("call __put_user_" #size : "=a" (__ret_pu) \
19633 : "0" ((typeof(*(ptr)))(x)), "c" (ptr) : "ebx")
19634
19635-
19636+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_MEMORY_UDEREF)
19637+#define __copyuser_seg "gs;"
19638+#define __COPYUSER_SET_ES "pushl %%gs; popl %%es\n"
19639+#define __COPYUSER_RESTORE_ES "pushl %%ss; popl %%es\n"
19640+#else
19641+#define __copyuser_seg
19642+#define __COPYUSER_SET_ES
19643+#define __COPYUSER_RESTORE_ES
19644+#endif
19645
19646 #ifdef CONFIG_X86_32
19647 #define __put_user_asm_u64(x, addr, err, errret) \
19648 asm volatile(ASM_STAC "\n" \
19649- "1: movl %%eax,0(%2)\n" \
19650- "2: movl %%edx,4(%2)\n" \
19651+ "1: "__copyuser_seg"movl %%eax,0(%2)\n" \
19652+ "2: "__copyuser_seg"movl %%edx,4(%2)\n" \
19653 "3: " ASM_CLAC "\n" \
19654 ".section .fixup,\"ax\"\n" \
19655 "4: movl %3,%0\n" \
19656@@ -206,8 +252,8 @@ __typeof__(__builtin_choose_expr(sizeof(x) > sizeof(0UL), 0ULL, 0UL))
19657
19658 #define __put_user_asm_ex_u64(x, addr) \
19659 asm volatile(ASM_STAC "\n" \
19660- "1: movl %%eax,0(%1)\n" \
19661- "2: movl %%edx,4(%1)\n" \
19662+ "1: "__copyuser_seg"movl %%eax,0(%1)\n" \
19663+ "2: "__copyuser_seg"movl %%edx,4(%1)\n" \
19664 "3: " ASM_CLAC "\n" \
19665 _ASM_EXTABLE_EX(1b, 2b) \
19666 _ASM_EXTABLE_EX(2b, 3b) \
19667@@ -257,7 +303,8 @@ extern void __put_user_8(void);
19668 __typeof__(*(ptr)) __pu_val; \
19669 __chk_user_ptr(ptr); \
19670 might_fault(); \
19671- __pu_val = x; \
19672+ __pu_val = (x); \
19673+ pax_open_userland(); \
19674 switch (sizeof(*(ptr))) { \
19675 case 1: \
19676 __put_user_x(1, __pu_val, ptr, __ret_pu); \
19677@@ -275,6 +322,7 @@ extern void __put_user_8(void);
19678 __put_user_x(X, __pu_val, ptr, __ret_pu); \
19679 break; \
19680 } \
19681+ pax_close_userland(); \
19682 __ret_pu; \
19683 })
19684
19685@@ -355,8 +403,10 @@ do { \
19686 } while (0)
19687
19688 #define __get_user_asm(x, addr, err, itype, rtype, ltype, errret) \
19689+do { \
19690+ pax_open_userland(); \
19691 asm volatile(ASM_STAC "\n" \
19692- "1: mov"itype" %2,%"rtype"1\n" \
19693+ "1: "__copyuser_seg"mov"itype" %2,%"rtype"1\n"\
19694 "2: " ASM_CLAC "\n" \
19695 ".section .fixup,\"ax\"\n" \
19696 "3: mov %3,%0\n" \
19697@@ -364,8 +414,10 @@ do { \
19698 " jmp 2b\n" \
19699 ".previous\n" \
19700 _ASM_EXTABLE(1b, 3b) \
19701- : "=r" (err), ltype(x) \
19702- : "m" (__m(addr)), "i" (errret), "0" (err))
19703+ : "=r" (err), ltype (x) \
19704+ : "m" (__m(addr)), "i" (errret), "0" (err)); \
19705+ pax_close_userland(); \
19706+} while (0)
19707
19708 #define __get_user_size_ex(x, ptr, size) \
19709 do { \
19710@@ -389,7 +441,7 @@ do { \
19711 } while (0)
19712
19713 #define __get_user_asm_ex(x, addr, itype, rtype, ltype) \
19714- asm volatile("1: mov"itype" %1,%"rtype"0\n" \
19715+ asm volatile("1: "__copyuser_seg"mov"itype" %1,%"rtype"0\n"\
19716 "2:\n" \
19717 _ASM_EXTABLE_EX(1b, 2b) \
19718 : ltype(x) : "m" (__m(addr)))
19719@@ -406,13 +458,24 @@ do { \
19720 int __gu_err; \
19721 unsigned long __gu_val; \
19722 __get_user_size(__gu_val, (ptr), (size), __gu_err, -EFAULT); \
19723- (x) = (__force __typeof__(*(ptr)))__gu_val; \
19724+ (x) = (__typeof__(*(ptr)))__gu_val; \
19725 __gu_err; \
19726 })
19727
19728 /* FIXME: this hack is definitely wrong -AK */
19729 struct __large_struct { unsigned long buf[100]; };
19730-#define __m(x) (*(struct __large_struct __user *)(x))
19731+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
19732+#define ____m(x) \
19733+({ \
19734+ unsigned long ____x = (unsigned long)(x); \
19735+ if (____x < pax_user_shadow_base) \
19736+ ____x += pax_user_shadow_base; \
19737+ (typeof(x))____x; \
19738+})
19739+#else
19740+#define ____m(x) (x)
19741+#endif
19742+#define __m(x) (*(struct __large_struct __user *)____m(x))
19743
19744 /*
19745 * Tell gcc we read from memory instead of writing: this is because
19746@@ -420,8 +483,10 @@ struct __large_struct { unsigned long buf[100]; };
19747 * aliasing issues.
19748 */
19749 #define __put_user_asm(x, addr, err, itype, rtype, ltype, errret) \
19750+do { \
19751+ pax_open_userland(); \
19752 asm volatile(ASM_STAC "\n" \
19753- "1: mov"itype" %"rtype"1,%2\n" \
19754+ "1: "__copyuser_seg"mov"itype" %"rtype"1,%2\n"\
19755 "2: " ASM_CLAC "\n" \
19756 ".section .fixup,\"ax\"\n" \
19757 "3: mov %3,%0\n" \
19758@@ -429,10 +494,12 @@ struct __large_struct { unsigned long buf[100]; };
19759 ".previous\n" \
19760 _ASM_EXTABLE(1b, 3b) \
19761 : "=r"(err) \
19762- : ltype(x), "m" (__m(addr)), "i" (errret), "0" (err))
19763+ : ltype (x), "m" (__m(addr)), "i" (errret), "0" (err));\
19764+ pax_close_userland(); \
19765+} while (0)
19766
19767 #define __put_user_asm_ex(x, addr, itype, rtype, ltype) \
19768- asm volatile("1: mov"itype" %"rtype"0,%1\n" \
19769+ asm volatile("1: "__copyuser_seg"mov"itype" %"rtype"0,%1\n"\
19770 "2:\n" \
19771 _ASM_EXTABLE_EX(1b, 2b) \
19772 : : ltype(x), "m" (__m(addr)))
19773@@ -442,11 +509,13 @@ struct __large_struct { unsigned long buf[100]; };
19774 */
19775 #define uaccess_try do { \
19776 current_thread_info()->uaccess_err = 0; \
19777+ pax_open_userland(); \
19778 stac(); \
19779 barrier();
19780
19781 #define uaccess_catch(err) \
19782 clac(); \
19783+ pax_close_userland(); \
19784 (err) |= (current_thread_info()->uaccess_err ? -EFAULT : 0); \
19785 } while (0)
19786
19787@@ -471,8 +540,12 @@ struct __large_struct { unsigned long buf[100]; };
19788 * On error, the variable @x is set to zero.
19789 */
19790
19791+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
19792+#define __get_user(x, ptr) get_user((x), (ptr))
19793+#else
19794 #define __get_user(x, ptr) \
19795 __get_user_nocheck((x), (ptr), sizeof(*(ptr)))
19796+#endif
19797
19798 /**
19799 * __put_user: - Write a simple value into user space, with less checking.
19800@@ -494,8 +567,12 @@ struct __large_struct { unsigned long buf[100]; };
19801 * Returns zero on success, or -EFAULT on error.
19802 */
19803
19804+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
19805+#define __put_user(x, ptr) put_user((x), (ptr))
19806+#else
19807 #define __put_user(x, ptr) \
19808 __put_user_nocheck((__typeof__(*(ptr)))(x), (ptr), sizeof(*(ptr)))
19809+#endif
19810
19811 #define __get_user_unaligned __get_user
19812 #define __put_user_unaligned __put_user
19813@@ -513,7 +590,7 @@ struct __large_struct { unsigned long buf[100]; };
19814 #define get_user_ex(x, ptr) do { \
19815 unsigned long __gue_val; \
19816 __get_user_size_ex((__gue_val), (ptr), (sizeof(*(ptr)))); \
19817- (x) = (__force __typeof__(*(ptr)))__gue_val; \
19818+ (x) = (__typeof__(*(ptr)))__gue_val; \
19819 } while (0)
19820
19821 #define put_user_try uaccess_try
19822@@ -531,7 +608,7 @@ extern __must_check long strlen_user(const char __user *str);
19823 extern __must_check long strnlen_user(const char __user *str, long n);
19824
19825 unsigned long __must_check clear_user(void __user *mem, unsigned long len);
19826-unsigned long __must_check __clear_user(void __user *mem, unsigned long len);
19827+unsigned long __must_check __clear_user(void __user *mem, unsigned long len) __size_overflow(2);
19828
19829 extern void __cmpxchg_wrong_size(void)
19830 __compiletime_error("Bad argument size for cmpxchg");
19831@@ -542,18 +619,19 @@ extern void __cmpxchg_wrong_size(void)
19832 __typeof__(ptr) __uval = (uval); \
19833 __typeof__(*(ptr)) __old = (old); \
19834 __typeof__(*(ptr)) __new = (new); \
19835+ pax_open_userland(); \
19836 switch (size) { \
19837 case 1: \
19838 { \
19839 asm volatile("\t" ASM_STAC "\n" \
19840- "1:\t" LOCK_PREFIX "cmpxchgb %4, %2\n" \
19841+ "1:\t" LOCK_PREFIX __copyuser_seg"cmpxchgb %4, %2\n"\
19842 "2:\t" ASM_CLAC "\n" \
19843 "\t.section .fixup, \"ax\"\n" \
19844 "3:\tmov %3, %0\n" \
19845 "\tjmp 2b\n" \
19846 "\t.previous\n" \
19847 _ASM_EXTABLE(1b, 3b) \
19848- : "+r" (__ret), "=a" (__old), "+m" (*(ptr)) \
19849+ : "+r" (__ret), "=a" (__old), "+m" (*____m(ptr))\
19850 : "i" (-EFAULT), "q" (__new), "1" (__old) \
19851 : "memory" \
19852 ); \
19853@@ -562,14 +640,14 @@ extern void __cmpxchg_wrong_size(void)
19854 case 2: \
19855 { \
19856 asm volatile("\t" ASM_STAC "\n" \
19857- "1:\t" LOCK_PREFIX "cmpxchgw %4, %2\n" \
19858+ "1:\t" LOCK_PREFIX __copyuser_seg"cmpxchgw %4, %2\n"\
19859 "2:\t" ASM_CLAC "\n" \
19860 "\t.section .fixup, \"ax\"\n" \
19861 "3:\tmov %3, %0\n" \
19862 "\tjmp 2b\n" \
19863 "\t.previous\n" \
19864 _ASM_EXTABLE(1b, 3b) \
19865- : "+r" (__ret), "=a" (__old), "+m" (*(ptr)) \
19866+ : "+r" (__ret), "=a" (__old), "+m" (*____m(ptr))\
19867 : "i" (-EFAULT), "r" (__new), "1" (__old) \
19868 : "memory" \
19869 ); \
19870@@ -578,14 +656,14 @@ extern void __cmpxchg_wrong_size(void)
19871 case 4: \
19872 { \
19873 asm volatile("\t" ASM_STAC "\n" \
19874- "1:\t" LOCK_PREFIX "cmpxchgl %4, %2\n" \
19875+ "1:\t" LOCK_PREFIX __copyuser_seg"cmpxchgl %4, %2\n"\
19876 "2:\t" ASM_CLAC "\n" \
19877 "\t.section .fixup, \"ax\"\n" \
19878 "3:\tmov %3, %0\n" \
19879 "\tjmp 2b\n" \
19880 "\t.previous\n" \
19881 _ASM_EXTABLE(1b, 3b) \
19882- : "+r" (__ret), "=a" (__old), "+m" (*(ptr)) \
19883+ : "+r" (__ret), "=a" (__old), "+m" (*____m(ptr))\
19884 : "i" (-EFAULT), "r" (__new), "1" (__old) \
19885 : "memory" \
19886 ); \
19887@@ -597,14 +675,14 @@ extern void __cmpxchg_wrong_size(void)
19888 __cmpxchg_wrong_size(); \
19889 \
19890 asm volatile("\t" ASM_STAC "\n" \
19891- "1:\t" LOCK_PREFIX "cmpxchgq %4, %2\n" \
19892+ "1:\t" LOCK_PREFIX __copyuser_seg"cmpxchgq %4, %2\n"\
19893 "2:\t" ASM_CLAC "\n" \
19894 "\t.section .fixup, \"ax\"\n" \
19895 "3:\tmov %3, %0\n" \
19896 "\tjmp 2b\n" \
19897 "\t.previous\n" \
19898 _ASM_EXTABLE(1b, 3b) \
19899- : "+r" (__ret), "=a" (__old), "+m" (*(ptr)) \
19900+ : "+r" (__ret), "=a" (__old), "+m" (*____m(ptr))\
19901 : "i" (-EFAULT), "r" (__new), "1" (__old) \
19902 : "memory" \
19903 ); \
19904@@ -613,6 +691,7 @@ extern void __cmpxchg_wrong_size(void)
19905 default: \
19906 __cmpxchg_wrong_size(); \
19907 } \
19908+ pax_close_userland(); \
19909 *__uval = __old; \
19910 __ret; \
19911 })
19912@@ -636,17 +715,6 @@ extern struct movsl_mask {
19913
19914 #define ARCH_HAS_NOCACHE_UACCESS 1
19915
19916-#ifdef CONFIG_X86_32
19917-# include <asm/uaccess_32.h>
19918-#else
19919-# include <asm/uaccess_64.h>
19920-#endif
19921-
19922-unsigned long __must_check _copy_from_user(void *to, const void __user *from,
19923- unsigned n);
19924-unsigned long __must_check _copy_to_user(void __user *to, const void *from,
19925- unsigned n);
19926-
19927 #ifdef CONFIG_DEBUG_STRICT_USER_COPY_CHECKS
19928 # define copy_user_diag __compiletime_error
19929 #else
19930@@ -656,7 +724,7 @@ unsigned long __must_check _copy_to_user(void __user *to, const void *from,
19931 extern void copy_user_diag("copy_from_user() buffer size is too small")
19932 copy_from_user_overflow(void);
19933 extern void copy_user_diag("copy_to_user() buffer size is too small")
19934-copy_to_user_overflow(void) __asm__("copy_from_user_overflow");
19935+copy_to_user_overflow(void);
19936
19937 #undef copy_user_diag
19938
19939@@ -669,7 +737,7 @@ __copy_from_user_overflow(void) __asm__("copy_from_user_overflow");
19940
19941 extern void
19942 __compiletime_warning("copy_to_user() buffer size is not provably correct")
19943-__copy_to_user_overflow(void) __asm__("copy_from_user_overflow");
19944+__copy_to_user_overflow(void) __asm__("copy_to_user_overflow");
19945 #define __copy_to_user_overflow(size, count) __copy_to_user_overflow()
19946
19947 #else
19948@@ -684,10 +752,16 @@ __copy_from_user_overflow(int size, unsigned long count)
19949
19950 #endif
19951
19952+#ifdef CONFIG_X86_32
19953+# include <asm/uaccess_32.h>
19954+#else
19955+# include <asm/uaccess_64.h>
19956+#endif
19957+
19958 static inline unsigned long __must_check
19959 copy_from_user(void *to, const void __user *from, unsigned long n)
19960 {
19961- int sz = __compiletime_object_size(to);
19962+ size_t sz = __compiletime_object_size(to);
19963
19964 might_fault();
19965
19966@@ -709,12 +783,15 @@ copy_from_user(void *to, const void __user *from, unsigned long n)
19967 * case, and do only runtime checking for non-constant sizes.
19968 */
19969
19970- if (likely(sz < 0 || sz >= n))
19971- n = _copy_from_user(to, from, n);
19972- else if(__builtin_constant_p(n))
19973- copy_from_user_overflow();
19974- else
19975- __copy_from_user_overflow(sz, n);
19976+ if (likely(sz != (size_t)-1 && sz < n)) {
19977+ if(__builtin_constant_p(n))
19978+ copy_from_user_overflow();
19979+ else
19980+ __copy_from_user_overflow(sz, n);
19981+ } else if (access_ok(VERIFY_READ, from, n))
19982+ n = __copy_from_user(to, from, n);
19983+ else if ((long)n > 0)
19984+ memset(to, 0, n);
19985
19986 return n;
19987 }
19988@@ -722,17 +799,18 @@ copy_from_user(void *to, const void __user *from, unsigned long n)
19989 static inline unsigned long __must_check
19990 copy_to_user(void __user *to, const void *from, unsigned long n)
19991 {
19992- int sz = __compiletime_object_size(from);
19993+ size_t sz = __compiletime_object_size(from);
19994
19995 might_fault();
19996
19997 /* See the comment in copy_from_user() above. */
19998- if (likely(sz < 0 || sz >= n))
19999- n = _copy_to_user(to, from, n);
20000- else if(__builtin_constant_p(n))
20001- copy_to_user_overflow();
20002- else
20003- __copy_to_user_overflow(sz, n);
20004+ if (likely(sz != (size_t)-1 && sz < n)) {
20005+ if(__builtin_constant_p(n))
20006+ copy_to_user_overflow();
20007+ else
20008+ __copy_to_user_overflow(sz, n);
20009+ } else if (access_ok(VERIFY_WRITE, to, n))
20010+ n = __copy_to_user(to, from, n);
20011
20012 return n;
20013 }
20014diff --git a/arch/x86/include/asm/uaccess_32.h b/arch/x86/include/asm/uaccess_32.h
20015index 3c03a5d..edb68ae 100644
20016--- a/arch/x86/include/asm/uaccess_32.h
20017+++ b/arch/x86/include/asm/uaccess_32.h
20018@@ -40,9 +40,14 @@ unsigned long __must_check __copy_from_user_ll_nocache_nozero
20019 * anything, so this is accurate.
20020 */
20021
20022-static __always_inline unsigned long __must_check
20023+static __always_inline __size_overflow(3) unsigned long __must_check
20024 __copy_to_user_inatomic(void __user *to, const void *from, unsigned long n)
20025 {
20026+ if ((long)n < 0)
20027+ return n;
20028+
20029+ check_object_size(from, n, true);
20030+
20031 if (__builtin_constant_p(n)) {
20032 unsigned long ret;
20033
20034@@ -82,12 +87,16 @@ static __always_inline unsigned long __must_check
20035 __copy_to_user(void __user *to, const void *from, unsigned long n)
20036 {
20037 might_fault();
20038+
20039 return __copy_to_user_inatomic(to, from, n);
20040 }
20041
20042-static __always_inline unsigned long
20043+static __always_inline __size_overflow(3) unsigned long
20044 __copy_from_user_inatomic(void *to, const void __user *from, unsigned long n)
20045 {
20046+ if ((long)n < 0)
20047+ return n;
20048+
20049 /* Avoid zeroing the tail if the copy fails..
20050 * If 'n' is constant and 1, 2, or 4, we do still zero on a failure,
20051 * but as the zeroing behaviour is only significant when n is not
20052@@ -137,6 +146,12 @@ static __always_inline unsigned long
20053 __copy_from_user(void *to, const void __user *from, unsigned long n)
20054 {
20055 might_fault();
20056+
20057+ if ((long)n < 0)
20058+ return n;
20059+
20060+ check_object_size(to, n, false);
20061+
20062 if (__builtin_constant_p(n)) {
20063 unsigned long ret;
20064
20065@@ -159,6 +174,10 @@ static __always_inline unsigned long __copy_from_user_nocache(void *to,
20066 const void __user *from, unsigned long n)
20067 {
20068 might_fault();
20069+
20070+ if ((long)n < 0)
20071+ return n;
20072+
20073 if (__builtin_constant_p(n)) {
20074 unsigned long ret;
20075
20076@@ -181,7 +200,10 @@ static __always_inline unsigned long
20077 __copy_from_user_inatomic_nocache(void *to, const void __user *from,
20078 unsigned long n)
20079 {
20080- return __copy_from_user_ll_nocache_nozero(to, from, n);
20081+ if ((long)n < 0)
20082+ return n;
20083+
20084+ return __copy_from_user_ll_nocache_nozero(to, from, n);
20085 }
20086
20087 #endif /* _ASM_X86_UACCESS_32_H */
20088diff --git a/arch/x86/include/asm/uaccess_64.h b/arch/x86/include/asm/uaccess_64.h
20089index f2f9b39..2ae1bf8 100644
20090--- a/arch/x86/include/asm/uaccess_64.h
20091+++ b/arch/x86/include/asm/uaccess_64.h
20092@@ -10,6 +10,9 @@
20093 #include <asm/alternative.h>
20094 #include <asm/cpufeature.h>
20095 #include <asm/page.h>
20096+#include <asm/pgtable.h>
20097+
20098+#define set_fs(x) (current_thread_info()->addr_limit = (x))
20099
20100 /*
20101 * Copy To/From Userspace
20102@@ -23,8 +26,8 @@ copy_user_generic_string(void *to, const void *from, unsigned len);
20103 __must_check unsigned long
20104 copy_user_generic_unrolled(void *to, const void *from, unsigned len);
20105
20106-static __always_inline __must_check unsigned long
20107-copy_user_generic(void *to, const void *from, unsigned len)
20108+static __always_inline __must_check __size_overflow(3) unsigned long
20109+copy_user_generic(void *to, const void *from, unsigned long len)
20110 {
20111 unsigned ret;
20112
20113@@ -46,121 +49,170 @@ copy_user_generic(void *to, const void *from, unsigned len)
20114 }
20115
20116 __must_check unsigned long
20117-copy_in_user(void __user *to, const void __user *from, unsigned len);
20118+copy_in_user(void __user *to, const void __user *from, unsigned long len);
20119
20120 static __always_inline __must_check
20121-int __copy_from_user_nocheck(void *dst, const void __user *src, unsigned size)
20122+unsigned long __copy_from_user_nocheck(void *dst, const void __user *src, unsigned long size)
20123 {
20124- int ret = 0;
20125+ size_t sz = __compiletime_object_size(dst);
20126+ unsigned ret = 0;
20127+
20128+ if (size > INT_MAX)
20129+ return size;
20130+
20131+ check_object_size(dst, size, false);
20132+
20133+#ifdef CONFIG_PAX_MEMORY_UDEREF
20134+ if (!access_ok_noprefault(VERIFY_READ, src, size))
20135+ return size;
20136+#endif
20137+
20138+ if (unlikely(sz != (size_t)-1 && sz < size)) {
20139+ if(__builtin_constant_p(size))
20140+ copy_from_user_overflow();
20141+ else
20142+ __copy_from_user_overflow(sz, size);
20143+ return size;
20144+ }
20145
20146 if (!__builtin_constant_p(size))
20147- return copy_user_generic(dst, (__force void *)src, size);
20148+ return copy_user_generic(dst, (__force_kernel const void *)____m(src), size);
20149 switch (size) {
20150- case 1:__get_user_asm(*(u8 *)dst, (u8 __user *)src,
20151+ case 1:__get_user_asm(*(u8 *)dst, (const u8 __user *)src,
20152 ret, "b", "b", "=q", 1);
20153 return ret;
20154- case 2:__get_user_asm(*(u16 *)dst, (u16 __user *)src,
20155+ case 2:__get_user_asm(*(u16 *)dst, (const u16 __user *)src,
20156 ret, "w", "w", "=r", 2);
20157 return ret;
20158- case 4:__get_user_asm(*(u32 *)dst, (u32 __user *)src,
20159+ case 4:__get_user_asm(*(u32 *)dst, (const u32 __user *)src,
20160 ret, "l", "k", "=r", 4);
20161 return ret;
20162- case 8:__get_user_asm(*(u64 *)dst, (u64 __user *)src,
20163+ case 8:__get_user_asm(*(u64 *)dst, (const u64 __user *)src,
20164 ret, "q", "", "=r", 8);
20165 return ret;
20166 case 10:
20167- __get_user_asm(*(u64 *)dst, (u64 __user *)src,
20168+ __get_user_asm(*(u64 *)dst, (const u64 __user *)src,
20169 ret, "q", "", "=r", 10);
20170 if (unlikely(ret))
20171 return ret;
20172 __get_user_asm(*(u16 *)(8 + (char *)dst),
20173- (u16 __user *)(8 + (char __user *)src),
20174+ (const u16 __user *)(8 + (const char __user *)src),
20175 ret, "w", "w", "=r", 2);
20176 return ret;
20177 case 16:
20178- __get_user_asm(*(u64 *)dst, (u64 __user *)src,
20179+ __get_user_asm(*(u64 *)dst, (const u64 __user *)src,
20180 ret, "q", "", "=r", 16);
20181 if (unlikely(ret))
20182 return ret;
20183 __get_user_asm(*(u64 *)(8 + (char *)dst),
20184- (u64 __user *)(8 + (char __user *)src),
20185+ (const u64 __user *)(8 + (const char __user *)src),
20186 ret, "q", "", "=r", 8);
20187 return ret;
20188 default:
20189- return copy_user_generic(dst, (__force void *)src, size);
20190+ return copy_user_generic(dst, (__force_kernel const void *)____m(src), size);
20191 }
20192 }
20193
20194 static __always_inline __must_check
20195-int __copy_from_user(void *dst, const void __user *src, unsigned size)
20196+unsigned long __copy_from_user(void *dst, const void __user *src, unsigned long size)
20197 {
20198 might_fault();
20199 return __copy_from_user_nocheck(dst, src, size);
20200 }
20201
20202 static __always_inline __must_check
20203-int __copy_to_user_nocheck(void __user *dst, const void *src, unsigned size)
20204+unsigned long __copy_to_user_nocheck(void __user *dst, const void *src, unsigned long size)
20205 {
20206- int ret = 0;
20207+ size_t sz = __compiletime_object_size(src);
20208+ unsigned ret = 0;
20209+
20210+ if (size > INT_MAX)
20211+ return size;
20212+
20213+ check_object_size(src, size, true);
20214+
20215+#ifdef CONFIG_PAX_MEMORY_UDEREF
20216+ if (!access_ok_noprefault(VERIFY_WRITE, dst, size))
20217+ return size;
20218+#endif
20219+
20220+ if (unlikely(sz != (size_t)-1 && sz < size)) {
20221+ if(__builtin_constant_p(size))
20222+ copy_to_user_overflow();
20223+ else
20224+ __copy_to_user_overflow(sz, size);
20225+ return size;
20226+ }
20227
20228 if (!__builtin_constant_p(size))
20229- return copy_user_generic((__force void *)dst, src, size);
20230+ return copy_user_generic((__force_kernel void *)____m(dst), src, size);
20231 switch (size) {
20232- case 1:__put_user_asm(*(u8 *)src, (u8 __user *)dst,
20233+ case 1:__put_user_asm(*(const u8 *)src, (u8 __user *)dst,
20234 ret, "b", "b", "iq", 1);
20235 return ret;
20236- case 2:__put_user_asm(*(u16 *)src, (u16 __user *)dst,
20237+ case 2:__put_user_asm(*(const u16 *)src, (u16 __user *)dst,
20238 ret, "w", "w", "ir", 2);
20239 return ret;
20240- case 4:__put_user_asm(*(u32 *)src, (u32 __user *)dst,
20241+ case 4:__put_user_asm(*(const u32 *)src, (u32 __user *)dst,
20242 ret, "l", "k", "ir", 4);
20243 return ret;
20244- case 8:__put_user_asm(*(u64 *)src, (u64 __user *)dst,
20245+ case 8:__put_user_asm(*(const u64 *)src, (u64 __user *)dst,
20246 ret, "q", "", "er", 8);
20247 return ret;
20248 case 10:
20249- __put_user_asm(*(u64 *)src, (u64 __user *)dst,
20250+ __put_user_asm(*(const u64 *)src, (u64 __user *)dst,
20251 ret, "q", "", "er", 10);
20252 if (unlikely(ret))
20253 return ret;
20254 asm("":::"memory");
20255- __put_user_asm(4[(u16 *)src], 4 + (u16 __user *)dst,
20256+ __put_user_asm(4[(const u16 *)src], 4 + (u16 __user *)dst,
20257 ret, "w", "w", "ir", 2);
20258 return ret;
20259 case 16:
20260- __put_user_asm(*(u64 *)src, (u64 __user *)dst,
20261+ __put_user_asm(*(const u64 *)src, (u64 __user *)dst,
20262 ret, "q", "", "er", 16);
20263 if (unlikely(ret))
20264 return ret;
20265 asm("":::"memory");
20266- __put_user_asm(1[(u64 *)src], 1 + (u64 __user *)dst,
20267+ __put_user_asm(1[(const u64 *)src], 1 + (u64 __user *)dst,
20268 ret, "q", "", "er", 8);
20269 return ret;
20270 default:
20271- return copy_user_generic((__force void *)dst, src, size);
20272+ return copy_user_generic((__force_kernel void *)____m(dst), src, size);
20273 }
20274 }
20275
20276 static __always_inline __must_check
20277-int __copy_to_user(void __user *dst, const void *src, unsigned size)
20278+unsigned long __copy_to_user(void __user *dst, const void *src, unsigned long size)
20279 {
20280 might_fault();
20281 return __copy_to_user_nocheck(dst, src, size);
20282 }
20283
20284 static __always_inline __must_check
20285-int __copy_in_user(void __user *dst, const void __user *src, unsigned size)
20286+unsigned long __copy_in_user(void __user *dst, const void __user *src, unsigned size)
20287 {
20288- int ret = 0;
20289+ unsigned ret = 0;
20290
20291 might_fault();
20292+
20293+ if (size > INT_MAX)
20294+ return size;
20295+
20296+#ifdef CONFIG_PAX_MEMORY_UDEREF
20297+ if (!access_ok_noprefault(VERIFY_READ, src, size))
20298+ return size;
20299+ if (!access_ok_noprefault(VERIFY_WRITE, dst, size))
20300+ return size;
20301+#endif
20302+
20303 if (!__builtin_constant_p(size))
20304- return copy_user_generic((__force void *)dst,
20305- (__force void *)src, size);
20306+ return copy_user_generic((__force_kernel void *)____m(dst),
20307+ (__force_kernel const void *)____m(src), size);
20308 switch (size) {
20309 case 1: {
20310 u8 tmp;
20311- __get_user_asm(tmp, (u8 __user *)src,
20312+ __get_user_asm(tmp, (const u8 __user *)src,
20313 ret, "b", "b", "=q", 1);
20314 if (likely(!ret))
20315 __put_user_asm(tmp, (u8 __user *)dst,
20316@@ -169,7 +221,7 @@ int __copy_in_user(void __user *dst, const void __user *src, unsigned size)
20317 }
20318 case 2: {
20319 u16 tmp;
20320- __get_user_asm(tmp, (u16 __user *)src,
20321+ __get_user_asm(tmp, (const u16 __user *)src,
20322 ret, "w", "w", "=r", 2);
20323 if (likely(!ret))
20324 __put_user_asm(tmp, (u16 __user *)dst,
20325@@ -179,7 +231,7 @@ int __copy_in_user(void __user *dst, const void __user *src, unsigned size)
20326
20327 case 4: {
20328 u32 tmp;
20329- __get_user_asm(tmp, (u32 __user *)src,
20330+ __get_user_asm(tmp, (const u32 __user *)src,
20331 ret, "l", "k", "=r", 4);
20332 if (likely(!ret))
20333 __put_user_asm(tmp, (u32 __user *)dst,
20334@@ -188,7 +240,7 @@ int __copy_in_user(void __user *dst, const void __user *src, unsigned size)
20335 }
20336 case 8: {
20337 u64 tmp;
20338- __get_user_asm(tmp, (u64 __user *)src,
20339+ __get_user_asm(tmp, (const u64 __user *)src,
20340 ret, "q", "", "=r", 8);
20341 if (likely(!ret))
20342 __put_user_asm(tmp, (u64 __user *)dst,
20343@@ -196,41 +248,58 @@ int __copy_in_user(void __user *dst, const void __user *src, unsigned size)
20344 return ret;
20345 }
20346 default:
20347- return copy_user_generic((__force void *)dst,
20348- (__force void *)src, size);
20349+ return copy_user_generic((__force_kernel void *)____m(dst),
20350+ (__force_kernel const void *)____m(src), size);
20351 }
20352 }
20353
20354-static __must_check __always_inline int
20355-__copy_from_user_inatomic(void *dst, const void __user *src, unsigned size)
20356+static __must_check __always_inline unsigned long
20357+__copy_from_user_inatomic(void *dst, const void __user *src, unsigned long size)
20358 {
20359 return __copy_from_user_nocheck(dst, src, size);
20360 }
20361
20362-static __must_check __always_inline int
20363-__copy_to_user_inatomic(void __user *dst, const void *src, unsigned size)
20364+static __must_check __always_inline unsigned long
20365+__copy_to_user_inatomic(void __user *dst, const void *src, unsigned long size)
20366 {
20367 return __copy_to_user_nocheck(dst, src, size);
20368 }
20369
20370-extern long __copy_user_nocache(void *dst, const void __user *src,
20371- unsigned size, int zerorest);
20372+extern unsigned long __copy_user_nocache(void *dst, const void __user *src,
20373+ unsigned long size, int zerorest);
20374
20375-static inline int
20376-__copy_from_user_nocache(void *dst, const void __user *src, unsigned size)
20377+static inline unsigned long
20378+__copy_from_user_nocache(void *dst, const void __user *src, unsigned long size)
20379 {
20380 might_fault();
20381+
20382+ if (size > INT_MAX)
20383+ return size;
20384+
20385+#ifdef CONFIG_PAX_MEMORY_UDEREF
20386+ if (!access_ok_noprefault(VERIFY_READ, src, size))
20387+ return size;
20388+#endif
20389+
20390 return __copy_user_nocache(dst, src, size, 1);
20391 }
20392
20393-static inline int
20394+static inline unsigned long
20395 __copy_from_user_inatomic_nocache(void *dst, const void __user *src,
20396- unsigned size)
20397+ unsigned long size)
20398 {
20399+ if (size > INT_MAX)
20400+ return size;
20401+
20402+#ifdef CONFIG_PAX_MEMORY_UDEREF
20403+ if (!access_ok_noprefault(VERIFY_READ, src, size))
20404+ return size;
20405+#endif
20406+
20407 return __copy_user_nocache(dst, src, size, 0);
20408 }
20409
20410 unsigned long
20411-copy_user_handle_tail(char *to, char *from, unsigned len);
20412+copy_user_handle_tail(char __user *to, char __user *from, unsigned long len) __size_overflow(3);
20413
20414 #endif /* _ASM_X86_UACCESS_64_H */
20415diff --git a/arch/x86/include/asm/word-at-a-time.h b/arch/x86/include/asm/word-at-a-time.h
20416index 5b238981..77fdd78 100644
20417--- a/arch/x86/include/asm/word-at-a-time.h
20418+++ b/arch/x86/include/asm/word-at-a-time.h
20419@@ -11,7 +11,7 @@
20420 * and shift, for example.
20421 */
20422 struct word_at_a_time {
20423- const unsigned long one_bits, high_bits;
20424+ unsigned long one_bits, high_bits;
20425 };
20426
20427 #define WORD_AT_A_TIME_CONSTANTS { REPEAT_BYTE(0x01), REPEAT_BYTE(0x80) }
20428diff --git a/arch/x86/include/asm/x86_init.h b/arch/x86/include/asm/x86_init.h
20429index f58a9c7..dc378042a 100644
20430--- a/arch/x86/include/asm/x86_init.h
20431+++ b/arch/x86/include/asm/x86_init.h
20432@@ -129,7 +129,7 @@ struct x86_init_ops {
20433 struct x86_init_timers timers;
20434 struct x86_init_iommu iommu;
20435 struct x86_init_pci pci;
20436-};
20437+} __no_const;
20438
20439 /**
20440 * struct x86_cpuinit_ops - platform specific cpu hotplug setups
20441@@ -140,7 +140,7 @@ struct x86_cpuinit_ops {
20442 void (*setup_percpu_clockev)(void);
20443 void (*early_percpu_clock_init)(void);
20444 void (*fixup_cpu_id)(struct cpuinfo_x86 *c, int node);
20445-};
20446+} __no_const;
20447
20448 struct timespec;
20449
20450@@ -168,7 +168,7 @@ struct x86_platform_ops {
20451 void (*save_sched_clock_state)(void);
20452 void (*restore_sched_clock_state)(void);
20453 void (*apic_post_init)(void);
20454-};
20455+} __no_const;
20456
20457 struct pci_dev;
20458 struct msi_msg;
20459@@ -182,7 +182,7 @@ struct x86_msi_ops {
20460 void (*teardown_msi_irqs)(struct pci_dev *dev);
20461 void (*restore_msi_irqs)(struct pci_dev *dev);
20462 int (*setup_hpet_msi)(unsigned int irq, unsigned int id);
20463-};
20464+} __no_const;
20465
20466 struct IO_APIC_route_entry;
20467 struct io_apic_irq_attr;
20468@@ -203,7 +203,7 @@ struct x86_io_apic_ops {
20469 unsigned int destination, int vector,
20470 struct io_apic_irq_attr *attr);
20471 void (*eoi_ioapic_pin)(int apic, int pin, int vector);
20472-};
20473+} __no_const;
20474
20475 extern struct x86_init_ops x86_init;
20476 extern struct x86_cpuinit_ops x86_cpuinit;
20477diff --git a/arch/x86/include/asm/xen/page.h b/arch/x86/include/asm/xen/page.h
20478index 358dcd3..23c0bf1 100644
20479--- a/arch/x86/include/asm/xen/page.h
20480+++ b/arch/x86/include/asm/xen/page.h
20481@@ -82,7 +82,7 @@ static inline int xen_safe_read_ulong(unsigned long *addr, unsigned long *val)
20482 * - get_phys_to_machine() is to be called by __pfn_to_mfn() only in special
20483 * cases needing an extended handling.
20484 */
20485-static inline unsigned long __pfn_to_mfn(unsigned long pfn)
20486+static inline unsigned long __intentional_overflow(-1) __pfn_to_mfn(unsigned long pfn)
20487 {
20488 unsigned long mfn;
20489
20490diff --git a/arch/x86/include/asm/xsave.h b/arch/x86/include/asm/xsave.h
20491index c9a6d68..cb57f42 100644
20492--- a/arch/x86/include/asm/xsave.h
20493+++ b/arch/x86/include/asm/xsave.h
20494@@ -223,12 +223,16 @@ static inline int xsave_user(struct xsave_struct __user *buf)
20495 if (unlikely(err))
20496 return -EFAULT;
20497
20498+ pax_open_userland();
20499 __asm__ __volatile__(ASM_STAC "\n"
20500- "1:"XSAVE"\n"
20501+ "1:"
20502+ __copyuser_seg
20503+ XSAVE"\n"
20504 "2: " ASM_CLAC "\n"
20505 xstate_fault
20506 : "D" (buf), "a" (-1), "d" (-1), "0" (0)
20507 : "memory");
20508+ pax_close_userland();
20509 return err;
20510 }
20511
20512@@ -238,16 +242,20 @@ static inline int xsave_user(struct xsave_struct __user *buf)
20513 static inline int xrestore_user(struct xsave_struct __user *buf, u64 mask)
20514 {
20515 int err = 0;
20516- struct xsave_struct *xstate = ((__force struct xsave_struct *)buf);
20517+ struct xsave_struct *xstate = ((__force_kernel struct xsave_struct *)buf);
20518 u32 lmask = mask;
20519 u32 hmask = mask >> 32;
20520
20521+ pax_open_userland();
20522 __asm__ __volatile__(ASM_STAC "\n"
20523- "1:"XRSTOR"\n"
20524+ "1:"
20525+ __copyuser_seg
20526+ XRSTOR"\n"
20527 "2: " ASM_CLAC "\n"
20528 xstate_fault
20529 : "D" (xstate), "a" (lmask), "d" (hmask), "0" (0)
20530 : "memory"); /* memory required? */
20531+ pax_close_userland();
20532 return err;
20533 }
20534
20535diff --git a/arch/x86/include/uapi/asm/e820.h b/arch/x86/include/uapi/asm/e820.h
20536index d993e33..8db1b18 100644
20537--- a/arch/x86/include/uapi/asm/e820.h
20538+++ b/arch/x86/include/uapi/asm/e820.h
20539@@ -58,7 +58,7 @@ struct e820map {
20540 #define ISA_START_ADDRESS 0xa0000
20541 #define ISA_END_ADDRESS 0x100000
20542
20543-#define BIOS_BEGIN 0x000a0000
20544+#define BIOS_BEGIN 0x000c0000
20545 #define BIOS_END 0x00100000
20546
20547 #define BIOS_ROM_BASE 0xffe00000
20548diff --git a/arch/x86/include/uapi/asm/ptrace-abi.h b/arch/x86/include/uapi/asm/ptrace-abi.h
20549index 7b0a55a..ad115bf 100644
20550--- a/arch/x86/include/uapi/asm/ptrace-abi.h
20551+++ b/arch/x86/include/uapi/asm/ptrace-abi.h
20552@@ -49,7 +49,6 @@
20553 #define EFLAGS 144
20554 #define RSP 152
20555 #define SS 160
20556-#define ARGOFFSET R11
20557 #endif /* __ASSEMBLY__ */
20558
20559 /* top of stack page */
20560diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile
20561index cdb1b70..426434c 100644
20562--- a/arch/x86/kernel/Makefile
20563+++ b/arch/x86/kernel/Makefile
20564@@ -28,7 +28,7 @@ obj-y += time.o ioport.o ldt.o dumpstack.o nmi.o
20565 obj-y += setup.o x86_init.o i8259.o irqinit.o jump_label.o
20566 obj-$(CONFIG_IRQ_WORK) += irq_work.o
20567 obj-y += probe_roms.o
20568-obj-$(CONFIG_X86_32) += i386_ksyms_32.o
20569+obj-$(CONFIG_X86_32) += sys_i386_32.o i386_ksyms_32.o
20570 obj-$(CONFIG_X86_64) += sys_x86_64.o x8664_ksyms_64.o
20571 obj-$(CONFIG_X86_64) += mcount_64.o
20572 obj-y += syscall_$(BITS).o vsyscall_gtod.o
20573diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
20574index 803b684..68c64f1 100644
20575--- a/arch/x86/kernel/acpi/boot.c
20576+++ b/arch/x86/kernel/acpi/boot.c
20577@@ -1361,7 +1361,7 @@ static void __init acpi_reduced_hw_init(void)
20578 * If your system is blacklisted here, but you find that acpi=force
20579 * works for you, please contact linux-acpi@vger.kernel.org
20580 */
20581-static struct dmi_system_id __initdata acpi_dmi_table[] = {
20582+static const struct dmi_system_id __initconst acpi_dmi_table[] = {
20583 /*
20584 * Boxes that need ACPI disabled
20585 */
20586@@ -1436,7 +1436,7 @@ static struct dmi_system_id __initdata acpi_dmi_table[] = {
20587 };
20588
20589 /* second table for DMI checks that should run after early-quirks */
20590-static struct dmi_system_id __initdata acpi_dmi_table_late[] = {
20591+static const struct dmi_system_id __initconst acpi_dmi_table_late[] = {
20592 /*
20593 * HP laptops which use a DSDT reporting as HP/SB400/10000,
20594 * which includes some code which overrides all temperature
20595diff --git a/arch/x86/kernel/acpi/sleep.c b/arch/x86/kernel/acpi/sleep.c
20596index d1daead..acd77e2 100644
20597--- a/arch/x86/kernel/acpi/sleep.c
20598+++ b/arch/x86/kernel/acpi/sleep.c
20599@@ -99,8 +99,12 @@ int x86_acpi_suspend_lowlevel(void)
20600 #else /* CONFIG_64BIT */
20601 #ifdef CONFIG_SMP
20602 stack_start = (unsigned long)temp_stack + sizeof(temp_stack);
20603+
20604+ pax_open_kernel();
20605 early_gdt_descr.address =
20606 (unsigned long)get_cpu_gdt_table(smp_processor_id());
20607+ pax_close_kernel();
20608+
20609 initial_gs = per_cpu_offset(smp_processor_id());
20610 #endif
20611 initial_code = (unsigned long)wakeup_long64;
20612diff --git a/arch/x86/kernel/acpi/wakeup_32.S b/arch/x86/kernel/acpi/wakeup_32.S
20613index 665c6b7..eae4d56 100644
20614--- a/arch/x86/kernel/acpi/wakeup_32.S
20615+++ b/arch/x86/kernel/acpi/wakeup_32.S
20616@@ -29,13 +29,11 @@ wakeup_pmode_return:
20617 # and restore the stack ... but you need gdt for this to work
20618 movl saved_context_esp, %esp
20619
20620- movl %cs:saved_magic, %eax
20621- cmpl $0x12345678, %eax
20622+ cmpl $0x12345678, saved_magic
20623 jne bogus_magic
20624
20625 # jump to place where we left off
20626- movl saved_eip, %eax
20627- jmp *%eax
20628+ jmp *(saved_eip)
20629
20630 bogus_magic:
20631 jmp bogus_magic
20632diff --git a/arch/x86/kernel/alternative.c b/arch/x86/kernel/alternative.c
20633index 703130f..27a155d 100644
20634--- a/arch/x86/kernel/alternative.c
20635+++ b/arch/x86/kernel/alternative.c
20636@@ -268,6 +268,13 @@ void __init_or_module apply_alternatives(struct alt_instr *start,
20637 */
20638 for (a = start; a < end; a++) {
20639 instr = (u8 *)&a->instr_offset + a->instr_offset;
20640+
20641+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
20642+ instr += ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR;
20643+ if (instr < (u8 *)_text || (u8 *)_einittext <= instr)
20644+ instr -= ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR;
20645+#endif
20646+
20647 replacement = (u8 *)&a->repl_offset + a->repl_offset;
20648 BUG_ON(a->replacementlen > a->instrlen);
20649 BUG_ON(a->instrlen > sizeof(insnbuf));
20650@@ -284,6 +291,11 @@ void __init_or_module apply_alternatives(struct alt_instr *start,
20651 add_nops(insnbuf + a->replacementlen,
20652 a->instrlen - a->replacementlen);
20653
20654+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
20655+ if (instr < (u8 *)_text || (u8 *)_einittext <= instr)
20656+ instr = ktva_ktla(instr);
20657+#endif
20658+
20659 text_poke_early(instr, insnbuf, a->instrlen);
20660 }
20661 }
20662@@ -299,10 +311,16 @@ static void alternatives_smp_lock(const s32 *start, const s32 *end,
20663 for (poff = start; poff < end; poff++) {
20664 u8 *ptr = (u8 *)poff + *poff;
20665
20666+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
20667+ ptr += ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR;
20668+ if (ptr < (u8 *)_text || (u8 *)_einittext <= ptr)
20669+ ptr -= ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR;
20670+#endif
20671+
20672 if (!*poff || ptr < text || ptr >= text_end)
20673 continue;
20674 /* turn DS segment override prefix into lock prefix */
20675- if (*ptr == 0x3e)
20676+ if (*ktla_ktva(ptr) == 0x3e)
20677 text_poke(ptr, ((unsigned char []){0xf0}), 1);
20678 }
20679 mutex_unlock(&text_mutex);
20680@@ -317,10 +335,16 @@ static void alternatives_smp_unlock(const s32 *start, const s32 *end,
20681 for (poff = start; poff < end; poff++) {
20682 u8 *ptr = (u8 *)poff + *poff;
20683
20684+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
20685+ ptr += ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR;
20686+ if (ptr < (u8 *)_text || (u8 *)_einittext <= ptr)
20687+ ptr -= ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR;
20688+#endif
20689+
20690 if (!*poff || ptr < text || ptr >= text_end)
20691 continue;
20692 /* turn lock prefix into DS segment override prefix */
20693- if (*ptr == 0xf0)
20694+ if (*ktla_ktva(ptr) == 0xf0)
20695 text_poke(ptr, ((unsigned char []){0x3E}), 1);
20696 }
20697 mutex_unlock(&text_mutex);
20698@@ -457,7 +481,7 @@ void __init_or_module apply_paravirt(struct paravirt_patch_site *start,
20699
20700 BUG_ON(p->len > MAX_PATCH_LEN);
20701 /* prep the buffer with the original instructions */
20702- memcpy(insnbuf, p->instr, p->len);
20703+ memcpy(insnbuf, ktla_ktva(p->instr), p->len);
20704 used = pv_init_ops.patch(p->instrtype, p->clobbers, insnbuf,
20705 (unsigned long)p->instr, p->len);
20706
20707@@ -504,7 +528,7 @@ void __init alternative_instructions(void)
20708 if (!uniproc_patched || num_possible_cpus() == 1)
20709 free_init_pages("SMP alternatives",
20710 (unsigned long)__smp_locks,
20711- (unsigned long)__smp_locks_end);
20712+ PAGE_ALIGN((unsigned long)__smp_locks_end));
20713 #endif
20714
20715 apply_paravirt(__parainstructions, __parainstructions_end);
20716@@ -524,13 +548,17 @@ void __init alternative_instructions(void)
20717 * instructions. And on the local CPU you need to be protected again NMI or MCE
20718 * handlers seeing an inconsistent instruction while you patch.
20719 */
20720-void *__init_or_module text_poke_early(void *addr, const void *opcode,
20721+void *__kprobes text_poke_early(void *addr, const void *opcode,
20722 size_t len)
20723 {
20724 unsigned long flags;
20725 local_irq_save(flags);
20726- memcpy(addr, opcode, len);
20727+
20728+ pax_open_kernel();
20729+ memcpy(ktla_ktva(addr), opcode, len);
20730 sync_core();
20731+ pax_close_kernel();
20732+
20733 local_irq_restore(flags);
20734 /* Could also do a CLFLUSH here to speed up CPU recovery; but
20735 that causes hangs on some VIA CPUs. */
20736@@ -552,36 +580,22 @@ void *__init_or_module text_poke_early(void *addr, const void *opcode,
20737 */
20738 void *text_poke(void *addr, const void *opcode, size_t len)
20739 {
20740- unsigned long flags;
20741- char *vaddr;
20742+ unsigned char *vaddr = ktla_ktva(addr);
20743 struct page *pages[2];
20744- int i;
20745+ size_t i;
20746
20747 if (!core_kernel_text((unsigned long)addr)) {
20748- pages[0] = vmalloc_to_page(addr);
20749- pages[1] = vmalloc_to_page(addr + PAGE_SIZE);
20750+ pages[0] = vmalloc_to_page(vaddr);
20751+ pages[1] = vmalloc_to_page(vaddr + PAGE_SIZE);
20752 } else {
20753- pages[0] = virt_to_page(addr);
20754+ pages[0] = virt_to_page(vaddr);
20755 WARN_ON(!PageReserved(pages[0]));
20756- pages[1] = virt_to_page(addr + PAGE_SIZE);
20757+ pages[1] = virt_to_page(vaddr + PAGE_SIZE);
20758 }
20759 BUG_ON(!pages[0]);
20760- local_irq_save(flags);
20761- set_fixmap(FIX_TEXT_POKE0, page_to_phys(pages[0]));
20762- if (pages[1])
20763- set_fixmap(FIX_TEXT_POKE1, page_to_phys(pages[1]));
20764- vaddr = (char *)fix_to_virt(FIX_TEXT_POKE0);
20765- memcpy(&vaddr[(unsigned long)addr & ~PAGE_MASK], opcode, len);
20766- clear_fixmap(FIX_TEXT_POKE0);
20767- if (pages[1])
20768- clear_fixmap(FIX_TEXT_POKE1);
20769- local_flush_tlb();
20770- sync_core();
20771- /* Could also do a CLFLUSH here to speed up CPU recovery; but
20772- that causes hangs on some VIA CPUs. */
20773+ text_poke_early(addr, opcode, len);
20774 for (i = 0; i < len; i++)
20775- BUG_ON(((char *)addr)[i] != ((char *)opcode)[i]);
20776- local_irq_restore(flags);
20777+ BUG_ON((vaddr)[i] != ((const unsigned char *)opcode)[i]);
20778 return addr;
20779 }
20780
20781@@ -601,7 +615,7 @@ int poke_int3_handler(struct pt_regs *regs)
20782 if (likely(!bp_patching_in_progress))
20783 return 0;
20784
20785- if (user_mode_vm(regs) || regs->ip != (unsigned long)bp_int3_addr)
20786+ if (user_mode(regs) || regs->ip != (unsigned long)bp_int3_addr)
20787 return 0;
20788
20789 /* set up the specified breakpoint handler */
20790@@ -635,7 +649,7 @@ int poke_int3_handler(struct pt_regs *regs)
20791 */
20792 void *text_poke_bp(void *addr, const void *opcode, size_t len, void *handler)
20793 {
20794- unsigned char int3 = 0xcc;
20795+ const unsigned char int3 = 0xcc;
20796
20797 bp_int3_handler = handler;
20798 bp_int3_addr = (u8 *)addr + sizeof(int3);
20799diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c
20800index ad3639a..bd4253c 100644
20801--- a/arch/x86/kernel/apic/apic.c
20802+++ b/arch/x86/kernel/apic/apic.c
20803@@ -171,7 +171,7 @@ int first_system_vector = FIRST_SYSTEM_VECTOR;
20804 /*
20805 * Debug level, exported for io_apic.c
20806 */
20807-unsigned int apic_verbosity;
20808+int apic_verbosity;
20809
20810 int pic_mode;
20811
20812@@ -1918,7 +1918,7 @@ static inline void __smp_error_interrupt(struct pt_regs *regs)
20813 apic_write(APIC_ESR, 0);
20814 v = apic_read(APIC_ESR);
20815 ack_APIC_irq();
20816- atomic_inc(&irq_err_count);
20817+ atomic_inc_unchecked(&irq_err_count);
20818
20819 apic_printk(APIC_DEBUG, KERN_DEBUG "APIC error on CPU%d: %02x",
20820 smp_processor_id(), v);
20821diff --git a/arch/x86/kernel/apic/apic_flat_64.c b/arch/x86/kernel/apic/apic_flat_64.c
20822index de918c4..32eed23 100644
20823--- a/arch/x86/kernel/apic/apic_flat_64.c
20824+++ b/arch/x86/kernel/apic/apic_flat_64.c
20825@@ -154,7 +154,7 @@ static int flat_probe(void)
20826 return 1;
20827 }
20828
20829-static struct apic apic_flat = {
20830+static struct apic apic_flat __read_only = {
20831 .name = "flat",
20832 .probe = flat_probe,
20833 .acpi_madt_oem_check = flat_acpi_madt_oem_check,
20834@@ -260,7 +260,7 @@ static int physflat_probe(void)
20835 return 0;
20836 }
20837
20838-static struct apic apic_physflat = {
20839+static struct apic apic_physflat __read_only = {
20840
20841 .name = "physical flat",
20842 .probe = physflat_probe,
20843diff --git a/arch/x86/kernel/apic/apic_noop.c b/arch/x86/kernel/apic/apic_noop.c
20844index b205cdb..d8503ff 100644
20845--- a/arch/x86/kernel/apic/apic_noop.c
20846+++ b/arch/x86/kernel/apic/apic_noop.c
20847@@ -108,7 +108,7 @@ static void noop_apic_write(u32 reg, u32 v)
20848 WARN_ON_ONCE(cpu_has_apic && !disable_apic);
20849 }
20850
20851-struct apic apic_noop = {
20852+struct apic apic_noop __read_only = {
20853 .name = "noop",
20854 .probe = noop_probe,
20855 .acpi_madt_oem_check = NULL,
20856diff --git a/arch/x86/kernel/apic/bigsmp_32.c b/arch/x86/kernel/apic/bigsmp_32.c
20857index c4a8d63..fe893ac 100644
20858--- a/arch/x86/kernel/apic/bigsmp_32.c
20859+++ b/arch/x86/kernel/apic/bigsmp_32.c
20860@@ -147,7 +147,7 @@ static int probe_bigsmp(void)
20861 return dmi_bigsmp;
20862 }
20863
20864-static struct apic apic_bigsmp = {
20865+static struct apic apic_bigsmp __read_only = {
20866
20867 .name = "bigsmp",
20868 .probe = probe_bigsmp,
20869diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
20870index f4dc246..fbab133 100644
20871--- a/arch/x86/kernel/apic/io_apic.c
20872+++ b/arch/x86/kernel/apic/io_apic.c
20873@@ -1862,7 +1862,7 @@ int native_ioapic_set_affinity(struct irq_data *data,
20874 return ret;
20875 }
20876
20877-atomic_t irq_mis_count;
20878+atomic_unchecked_t irq_mis_count;
20879
20880 #ifdef CONFIG_GENERIC_PENDING_IRQ
20881 static bool io_apic_level_ack_pending(struct irq_cfg *cfg)
20882@@ -2003,7 +2003,7 @@ static void ack_ioapic_level(struct irq_data *data)
20883 * at the cpu.
20884 */
20885 if (!(v & (1 << (i & 0x1f)))) {
20886- atomic_inc(&irq_mis_count);
20887+ atomic_inc_unchecked(&irq_mis_count);
20888
20889 eoi_ioapic_irq(irq, cfg);
20890 }
20891@@ -2011,7 +2011,7 @@ static void ack_ioapic_level(struct irq_data *data)
20892 ioapic_irqd_unmask(data, cfg, masked);
20893 }
20894
20895-static struct irq_chip ioapic_chip __read_mostly = {
20896+static struct irq_chip ioapic_chip = {
20897 .name = "IO-APIC",
20898 .irq_startup = startup_ioapic_irq,
20899 .irq_mask = mask_ioapic_irq,
20900@@ -2070,7 +2070,7 @@ static void ack_lapic_irq(struct irq_data *data)
20901 ack_APIC_irq();
20902 }
20903
20904-static struct irq_chip lapic_chip __read_mostly = {
20905+static struct irq_chip lapic_chip = {
20906 .name = "local-APIC",
20907 .irq_mask = mask_lapic_irq,
20908 .irq_unmask = unmask_lapic_irq,
20909diff --git a/arch/x86/kernel/apic/probe_32.c b/arch/x86/kernel/apic/probe_32.c
20910index bda4886..f9c7195 100644
20911--- a/arch/x86/kernel/apic/probe_32.c
20912+++ b/arch/x86/kernel/apic/probe_32.c
20913@@ -72,7 +72,7 @@ static int probe_default(void)
20914 return 1;
20915 }
20916
20917-static struct apic apic_default = {
20918+static struct apic apic_default __read_only = {
20919
20920 .name = "default",
20921 .probe = probe_default,
20922diff --git a/arch/x86/kernel/apic/vector.c b/arch/x86/kernel/apic/vector.c
20923index 6cedd79..023ff8e 100644
20924--- a/arch/x86/kernel/apic/vector.c
20925+++ b/arch/x86/kernel/apic/vector.c
20926@@ -21,7 +21,7 @@
20927
20928 static DEFINE_RAW_SPINLOCK(vector_lock);
20929
20930-void lock_vector_lock(void)
20931+void lock_vector_lock(void) __acquires(vector_lock)
20932 {
20933 /* Used to the online set of cpus does not change
20934 * during assign_irq_vector.
20935@@ -29,7 +29,7 @@ void lock_vector_lock(void)
20936 raw_spin_lock(&vector_lock);
20937 }
20938
20939-void unlock_vector_lock(void)
20940+void unlock_vector_lock(void) __releases(vector_lock)
20941 {
20942 raw_spin_unlock(&vector_lock);
20943 }
20944diff --git a/arch/x86/kernel/apic/x2apic_cluster.c b/arch/x86/kernel/apic/x2apic_cluster.c
20945index e658f21..b695a1a 100644
20946--- a/arch/x86/kernel/apic/x2apic_cluster.c
20947+++ b/arch/x86/kernel/apic/x2apic_cluster.c
20948@@ -182,7 +182,7 @@ update_clusterinfo(struct notifier_block *nfb, unsigned long action, void *hcpu)
20949 return notifier_from_errno(err);
20950 }
20951
20952-static struct notifier_block __refdata x2apic_cpu_notifier = {
20953+static struct notifier_block x2apic_cpu_notifier = {
20954 .notifier_call = update_clusterinfo,
20955 };
20956
20957@@ -234,7 +234,7 @@ static void cluster_vector_allocation_domain(int cpu, struct cpumask *retmask,
20958 cpumask_and(retmask, mask, per_cpu(cpus_in_cluster, cpu));
20959 }
20960
20961-static struct apic apic_x2apic_cluster = {
20962+static struct apic apic_x2apic_cluster __read_only = {
20963
20964 .name = "cluster x2apic",
20965 .probe = x2apic_cluster_probe,
20966diff --git a/arch/x86/kernel/apic/x2apic_phys.c b/arch/x86/kernel/apic/x2apic_phys.c
20967index 6fae733..5ca17af 100644
20968--- a/arch/x86/kernel/apic/x2apic_phys.c
20969+++ b/arch/x86/kernel/apic/x2apic_phys.c
20970@@ -88,7 +88,7 @@ static int x2apic_phys_probe(void)
20971 return apic == &apic_x2apic_phys;
20972 }
20973
20974-static struct apic apic_x2apic_phys = {
20975+static struct apic apic_x2apic_phys __read_only = {
20976
20977 .name = "physical x2apic",
20978 .probe = x2apic_phys_probe,
20979diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c
20980index 8e9dcfd..c61b3e4 100644
20981--- a/arch/x86/kernel/apic/x2apic_uv_x.c
20982+++ b/arch/x86/kernel/apic/x2apic_uv_x.c
20983@@ -348,7 +348,7 @@ static int uv_probe(void)
20984 return apic == &apic_x2apic_uv_x;
20985 }
20986
20987-static struct apic __refdata apic_x2apic_uv_x = {
20988+static struct apic apic_x2apic_uv_x __read_only = {
20989
20990 .name = "UV large system",
20991 .probe = uv_probe,
20992diff --git a/arch/x86/kernel/apm_32.c b/arch/x86/kernel/apm_32.c
20993index 927ec92..de68f32 100644
20994--- a/arch/x86/kernel/apm_32.c
20995+++ b/arch/x86/kernel/apm_32.c
20996@@ -432,7 +432,7 @@ static DEFINE_MUTEX(apm_mutex);
20997 * This is for buggy BIOS's that refer to (real mode) segment 0x40
20998 * even though they are called in protected mode.
20999 */
21000-static struct desc_struct bad_bios_desc = GDT_ENTRY_INIT(0x4092,
21001+static const struct desc_struct bad_bios_desc = GDT_ENTRY_INIT(0x4093,
21002 (unsigned long)__va(0x400UL), PAGE_SIZE - 0x400 - 1);
21003
21004 static const char driver_version[] = "1.16ac"; /* no spaces */
21005@@ -610,7 +610,10 @@ static long __apm_bios_call(void *_call)
21006 BUG_ON(cpu != 0);
21007 gdt = get_cpu_gdt_table(cpu);
21008 save_desc_40 = gdt[0x40 / 8];
21009+
21010+ pax_open_kernel();
21011 gdt[0x40 / 8] = bad_bios_desc;
21012+ pax_close_kernel();
21013
21014 apm_irq_save(flags);
21015 APM_DO_SAVE_SEGS;
21016@@ -619,7 +622,11 @@ static long __apm_bios_call(void *_call)
21017 &call->esi);
21018 APM_DO_RESTORE_SEGS;
21019 apm_irq_restore(flags);
21020+
21021+ pax_open_kernel();
21022 gdt[0x40 / 8] = save_desc_40;
21023+ pax_close_kernel();
21024+
21025 put_cpu();
21026
21027 return call->eax & 0xff;
21028@@ -686,7 +693,10 @@ static long __apm_bios_call_simple(void *_call)
21029 BUG_ON(cpu != 0);
21030 gdt = get_cpu_gdt_table(cpu);
21031 save_desc_40 = gdt[0x40 / 8];
21032+
21033+ pax_open_kernel();
21034 gdt[0x40 / 8] = bad_bios_desc;
21035+ pax_close_kernel();
21036
21037 apm_irq_save(flags);
21038 APM_DO_SAVE_SEGS;
21039@@ -694,7 +704,11 @@ static long __apm_bios_call_simple(void *_call)
21040 &call->eax);
21041 APM_DO_RESTORE_SEGS;
21042 apm_irq_restore(flags);
21043+
21044+ pax_open_kernel();
21045 gdt[0x40 / 8] = save_desc_40;
21046+ pax_close_kernel();
21047+
21048 put_cpu();
21049 return error;
21050 }
21051@@ -2039,7 +2053,7 @@ static int __init swab_apm_power_in_minutes(const struct dmi_system_id *d)
21052 return 0;
21053 }
21054
21055-static struct dmi_system_id __initdata apm_dmi_table[] = {
21056+static const struct dmi_system_id __initconst apm_dmi_table[] = {
21057 {
21058 print_if_true,
21059 KERN_WARNING "IBM T23 - BIOS 1.03b+ and controller firmware 1.02+ may be needed for Linux APM.",
21060@@ -2349,12 +2363,15 @@ static int __init apm_init(void)
21061 * code to that CPU.
21062 */
21063 gdt = get_cpu_gdt_table(0);
21064+
21065+ pax_open_kernel();
21066 set_desc_base(&gdt[APM_CS >> 3],
21067 (unsigned long)__va((unsigned long)apm_info.bios.cseg << 4));
21068 set_desc_base(&gdt[APM_CS_16 >> 3],
21069 (unsigned long)__va((unsigned long)apm_info.bios.cseg_16 << 4));
21070 set_desc_base(&gdt[APM_DS >> 3],
21071 (unsigned long)__va((unsigned long)apm_info.bios.dseg << 4));
21072+ pax_close_kernel();
21073
21074 proc_create("apm", 0, NULL, &apm_file_ops);
21075
21076diff --git a/arch/x86/kernel/asm-offsets.c b/arch/x86/kernel/asm-offsets.c
21077index 9f6b934..cf5ffb3 100644
21078--- a/arch/x86/kernel/asm-offsets.c
21079+++ b/arch/x86/kernel/asm-offsets.c
21080@@ -32,6 +32,8 @@ void common(void) {
21081 OFFSET(TI_flags, thread_info, flags);
21082 OFFSET(TI_status, thread_info, status);
21083 OFFSET(TI_addr_limit, thread_info, addr_limit);
21084+ OFFSET(TI_lowest_stack, thread_info, lowest_stack);
21085+ DEFINE(TI_task_thread_sp0, offsetof(struct task_struct, thread.sp0) - offsetof(struct task_struct, tinfo));
21086
21087 BLANK();
21088 OFFSET(crypto_tfm_ctx_offset, crypto_tfm, __crt_ctx);
21089@@ -52,8 +54,26 @@ void common(void) {
21090 OFFSET(PV_CPU_irq_enable_sysexit, pv_cpu_ops, irq_enable_sysexit);
21091 OFFSET(PV_CPU_read_cr0, pv_cpu_ops, read_cr0);
21092 OFFSET(PV_MMU_read_cr2, pv_mmu_ops, read_cr2);
21093+
21094+#ifdef CONFIG_PAX_KERNEXEC
21095+ OFFSET(PV_CPU_write_cr0, pv_cpu_ops, write_cr0);
21096 #endif
21097
21098+#ifdef CONFIG_PAX_MEMORY_UDEREF
21099+ OFFSET(PV_MMU_read_cr3, pv_mmu_ops, read_cr3);
21100+ OFFSET(PV_MMU_write_cr3, pv_mmu_ops, write_cr3);
21101+#ifdef CONFIG_X86_64
21102+ OFFSET(PV_MMU_set_pgd_batched, pv_mmu_ops, set_pgd_batched);
21103+#endif
21104+#endif
21105+
21106+#endif
21107+
21108+ BLANK();
21109+ DEFINE(PAGE_SIZE_asm, PAGE_SIZE);
21110+ DEFINE(PAGE_SHIFT_asm, PAGE_SHIFT);
21111+ DEFINE(THREAD_SIZE_asm, THREAD_SIZE);
21112+
21113 #ifdef CONFIG_XEN
21114 BLANK();
21115 OFFSET(XEN_vcpu_info_mask, vcpu_info, evtchn_upcall_mask);
21116diff --git a/arch/x86/kernel/asm-offsets_64.c b/arch/x86/kernel/asm-offsets_64.c
21117index fdcbb4d..036dd93 100644
21118--- a/arch/x86/kernel/asm-offsets_64.c
21119+++ b/arch/x86/kernel/asm-offsets_64.c
21120@@ -80,6 +80,7 @@ int main(void)
21121 BLANK();
21122 #undef ENTRY
21123
21124+ DEFINE(TSS_size, sizeof(struct tss_struct));
21125 OFFSET(TSS_ist, tss_struct, x86_tss.ist);
21126 BLANK();
21127
21128diff --git a/arch/x86/kernel/cpu/Makefile b/arch/x86/kernel/cpu/Makefile
21129index 80091ae..0c5184f 100644
21130--- a/arch/x86/kernel/cpu/Makefile
21131+++ b/arch/x86/kernel/cpu/Makefile
21132@@ -8,10 +8,6 @@ CFLAGS_REMOVE_common.o = -pg
21133 CFLAGS_REMOVE_perf_event.o = -pg
21134 endif
21135
21136-# Make sure load_percpu_segment has no stackprotector
21137-nostackp := $(call cc-option, -fno-stack-protector)
21138-CFLAGS_common.o := $(nostackp)
21139-
21140 obj-y := intel_cacheinfo.o scattered.o topology.o
21141 obj-y += common.o
21142 obj-y += rdrand.o
21143diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
21144index a220239..607fc38 100644
21145--- a/arch/x86/kernel/cpu/amd.c
21146+++ b/arch/x86/kernel/cpu/amd.c
21147@@ -717,7 +717,7 @@ static void init_amd(struct cpuinfo_x86 *c)
21148 static unsigned int amd_size_cache(struct cpuinfo_x86 *c, unsigned int size)
21149 {
21150 /* AMD errata T13 (order #21922) */
21151- if ((c->x86 == 6)) {
21152+ if (c->x86 == 6) {
21153 /* Duron Rev A0 */
21154 if (c->x86_model == 3 && c->x86_mask == 0)
21155 size = 64;
21156diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
21157index 2346c95..c061472 100644
21158--- a/arch/x86/kernel/cpu/common.c
21159+++ b/arch/x86/kernel/cpu/common.c
21160@@ -91,60 +91,6 @@ static const struct cpu_dev default_cpu = {
21161
21162 static const struct cpu_dev *this_cpu = &default_cpu;
21163
21164-DEFINE_PER_CPU_PAGE_ALIGNED(struct gdt_page, gdt_page) = { .gdt = {
21165-#ifdef CONFIG_X86_64
21166- /*
21167- * We need valid kernel segments for data and code in long mode too
21168- * IRET will check the segment types kkeil 2000/10/28
21169- * Also sysret mandates a special GDT layout
21170- *
21171- * TLS descriptors are currently at a different place compared to i386.
21172- * Hopefully nobody expects them at a fixed place (Wine?)
21173- */
21174- [GDT_ENTRY_KERNEL32_CS] = GDT_ENTRY_INIT(0xc09b, 0, 0xfffff),
21175- [GDT_ENTRY_KERNEL_CS] = GDT_ENTRY_INIT(0xa09b, 0, 0xfffff),
21176- [GDT_ENTRY_KERNEL_DS] = GDT_ENTRY_INIT(0xc093, 0, 0xfffff),
21177- [GDT_ENTRY_DEFAULT_USER32_CS] = GDT_ENTRY_INIT(0xc0fb, 0, 0xfffff),
21178- [GDT_ENTRY_DEFAULT_USER_DS] = GDT_ENTRY_INIT(0xc0f3, 0, 0xfffff),
21179- [GDT_ENTRY_DEFAULT_USER_CS] = GDT_ENTRY_INIT(0xa0fb, 0, 0xfffff),
21180-#else
21181- [GDT_ENTRY_KERNEL_CS] = GDT_ENTRY_INIT(0xc09a, 0, 0xfffff),
21182- [GDT_ENTRY_KERNEL_DS] = GDT_ENTRY_INIT(0xc092, 0, 0xfffff),
21183- [GDT_ENTRY_DEFAULT_USER_CS] = GDT_ENTRY_INIT(0xc0fa, 0, 0xfffff),
21184- [GDT_ENTRY_DEFAULT_USER_DS] = GDT_ENTRY_INIT(0xc0f2, 0, 0xfffff),
21185- /*
21186- * Segments used for calling PnP BIOS have byte granularity.
21187- * They code segments and data segments have fixed 64k limits,
21188- * the transfer segment sizes are set at run time.
21189- */
21190- /* 32-bit code */
21191- [GDT_ENTRY_PNPBIOS_CS32] = GDT_ENTRY_INIT(0x409a, 0, 0xffff),
21192- /* 16-bit code */
21193- [GDT_ENTRY_PNPBIOS_CS16] = GDT_ENTRY_INIT(0x009a, 0, 0xffff),
21194- /* 16-bit data */
21195- [GDT_ENTRY_PNPBIOS_DS] = GDT_ENTRY_INIT(0x0092, 0, 0xffff),
21196- /* 16-bit data */
21197- [GDT_ENTRY_PNPBIOS_TS1] = GDT_ENTRY_INIT(0x0092, 0, 0),
21198- /* 16-bit data */
21199- [GDT_ENTRY_PNPBIOS_TS2] = GDT_ENTRY_INIT(0x0092, 0, 0),
21200- /*
21201- * The APM segments have byte granularity and their bases
21202- * are set at run time. All have 64k limits.
21203- */
21204- /* 32-bit code */
21205- [GDT_ENTRY_APMBIOS_BASE] = GDT_ENTRY_INIT(0x409a, 0, 0xffff),
21206- /* 16-bit code */
21207- [GDT_ENTRY_APMBIOS_BASE+1] = GDT_ENTRY_INIT(0x009a, 0, 0xffff),
21208- /* data */
21209- [GDT_ENTRY_APMBIOS_BASE+2] = GDT_ENTRY_INIT(0x4092, 0, 0xffff),
21210-
21211- [GDT_ENTRY_ESPFIX_SS] = GDT_ENTRY_INIT(0xc092, 0, 0xfffff),
21212- [GDT_ENTRY_PERCPU] = GDT_ENTRY_INIT(0xc092, 0, 0xfffff),
21213- GDT_STACK_CANARY_INIT
21214-#endif
21215-} };
21216-EXPORT_PER_CPU_SYMBOL_GPL(gdt_page);
21217-
21218 static int __init x86_xsave_setup(char *s)
21219 {
21220 if (strlen(s))
21221@@ -306,6 +252,59 @@ static __always_inline void setup_smap(struct cpuinfo_x86 *c)
21222 }
21223 }
21224
21225+#ifdef CONFIG_X86_64
21226+static __init int setup_disable_pcid(char *arg)
21227+{
21228+ setup_clear_cpu_cap(X86_FEATURE_PCID);
21229+ setup_clear_cpu_cap(X86_FEATURE_INVPCID);
21230+
21231+#ifdef CONFIG_PAX_MEMORY_UDEREF
21232+ if (clone_pgd_mask != ~(pgdval_t)0UL)
21233+ pax_user_shadow_base = 1UL << TASK_SIZE_MAX_SHIFT;
21234+#endif
21235+
21236+ return 1;
21237+}
21238+__setup("nopcid", setup_disable_pcid);
21239+
21240+static void setup_pcid(struct cpuinfo_x86 *c)
21241+{
21242+ if (!cpu_has(c, X86_FEATURE_PCID)) {
21243+ clear_cpu_cap(c, X86_FEATURE_INVPCID);
21244+
21245+#ifdef CONFIG_PAX_MEMORY_UDEREF
21246+ if (clone_pgd_mask != ~(pgdval_t)0UL) {
21247+ pax_open_kernel();
21248+ pax_user_shadow_base = 1UL << TASK_SIZE_MAX_SHIFT;
21249+ pax_close_kernel();
21250+ printk("PAX: slow and weak UDEREF enabled\n");
21251+ } else
21252+ printk("PAX: UDEREF disabled\n");
21253+#endif
21254+
21255+ return;
21256+ }
21257+
21258+ printk("PAX: PCID detected\n");
21259+ cr4_set_bits(X86_CR4_PCIDE);
21260+
21261+#ifdef CONFIG_PAX_MEMORY_UDEREF
21262+ pax_open_kernel();
21263+ clone_pgd_mask = ~(pgdval_t)0UL;
21264+ pax_close_kernel();
21265+ if (pax_user_shadow_base)
21266+ printk("PAX: weak UDEREF enabled\n");
21267+ else {
21268+ set_cpu_cap(c, X86_FEATURE_STRONGUDEREF);
21269+ printk("PAX: strong UDEREF enabled\n");
21270+ }
21271+#endif
21272+
21273+ if (cpu_has(c, X86_FEATURE_INVPCID))
21274+ printk("PAX: INVPCID detected\n");
21275+}
21276+#endif
21277+
21278 /*
21279 * Some CPU features depend on higher CPUID levels, which may not always
21280 * be available due to CPUID level capping or broken virtualization
21281@@ -406,7 +405,7 @@ void switch_to_new_gdt(int cpu)
21282 {
21283 struct desc_ptr gdt_descr;
21284
21285- gdt_descr.address = (long)get_cpu_gdt_table(cpu);
21286+ gdt_descr.address = (unsigned long)get_cpu_gdt_table(cpu);
21287 gdt_descr.size = GDT_SIZE - 1;
21288 load_gdt(&gdt_descr);
21289 /* Reload the per-cpu base */
21290@@ -897,6 +896,20 @@ static void identify_cpu(struct cpuinfo_x86 *c)
21291 setup_smep(c);
21292 setup_smap(c);
21293
21294+#ifdef CONFIG_X86_32
21295+#ifdef CONFIG_PAX_PAGEEXEC
21296+ if (!(__supported_pte_mask & _PAGE_NX))
21297+ clear_cpu_cap(c, X86_FEATURE_PSE);
21298+#endif
21299+#if defined(CONFIG_PAX_SEGMEXEC) || defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
21300+ clear_cpu_cap(c, X86_FEATURE_SEP);
21301+#endif
21302+#endif
21303+
21304+#ifdef CONFIG_X86_64
21305+ setup_pcid(c);
21306+#endif
21307+
21308 /*
21309 * The vendor-specific functions might have changed features.
21310 * Now we do "generic changes."
21311@@ -979,7 +992,7 @@ static void syscall32_cpu_init(void)
21312 void enable_sep_cpu(void)
21313 {
21314 int cpu = get_cpu();
21315- struct tss_struct *tss = &per_cpu(init_tss, cpu);
21316+ struct tss_struct *tss = init_tss + cpu;
21317
21318 if (!boot_cpu_has(X86_FEATURE_SEP)) {
21319 put_cpu();
21320@@ -1117,14 +1130,16 @@ static __init int setup_disablecpuid(char *arg)
21321 }
21322 __setup("clearcpuid=", setup_disablecpuid);
21323
21324+DEFINE_PER_CPU(struct thread_info *, current_tinfo) = &init_task.tinfo;
21325+EXPORT_PER_CPU_SYMBOL(current_tinfo);
21326+
21327 DEFINE_PER_CPU(unsigned long, kernel_stack) =
21328- (unsigned long)&init_thread_union - KERNEL_STACK_OFFSET + THREAD_SIZE;
21329+ (unsigned long)&init_thread_union - 16 + THREAD_SIZE;
21330 EXPORT_PER_CPU_SYMBOL(kernel_stack);
21331
21332 #ifdef CONFIG_X86_64
21333-struct desc_ptr idt_descr = { NR_VECTORS * 16 - 1, (unsigned long) idt_table };
21334-struct desc_ptr debug_idt_descr = { NR_VECTORS * 16 - 1,
21335- (unsigned long) debug_idt_table };
21336+struct desc_ptr idt_descr __read_only = { NR_VECTORS * 16 - 1, (unsigned long) idt_table };
21337+const struct desc_ptr debug_idt_descr = { NR_VECTORS * 16 - 1, (unsigned long) debug_idt_table };
21338
21339 DEFINE_PER_CPU_FIRST(union irq_stack_union,
21340 irq_stack_union) __aligned(PAGE_SIZE) __visible;
21341@@ -1307,7 +1322,7 @@ void cpu_init(void)
21342 */
21343 load_ucode_ap();
21344
21345- t = &per_cpu(init_tss, cpu);
21346+ t = init_tss + cpu;
21347 oist = &per_cpu(orig_ist, cpu);
21348
21349 #ifdef CONFIG_NUMA
21350@@ -1339,7 +1354,6 @@ void cpu_init(void)
21351 wrmsrl(MSR_KERNEL_GS_BASE, 0);
21352 barrier();
21353
21354- x86_configure_nx();
21355 x2apic_setup();
21356
21357 /*
21358@@ -1391,7 +1405,7 @@ void cpu_init(void)
21359 {
21360 int cpu = smp_processor_id();
21361 struct task_struct *curr = current;
21362- struct tss_struct *t = &per_cpu(init_tss, cpu);
21363+ struct tss_struct *t = init_tss + cpu;
21364 struct thread_struct *thread = &curr->thread;
21365
21366 wait_for_master_cpu(cpu);
21367diff --git a/arch/x86/kernel/cpu/intel_cacheinfo.c b/arch/x86/kernel/cpu/intel_cacheinfo.c
21368index 6596433..1ad6eaf 100644
21369--- a/arch/x86/kernel/cpu/intel_cacheinfo.c
21370+++ b/arch/x86/kernel/cpu/intel_cacheinfo.c
21371@@ -1024,6 +1024,22 @@ static struct attribute *default_attrs[] = {
21372 };
21373
21374 #ifdef CONFIG_AMD_NB
21375+static struct attribute *default_attrs_amd_nb[] = {
21376+ &type.attr,
21377+ &level.attr,
21378+ &coherency_line_size.attr,
21379+ &physical_line_partition.attr,
21380+ &ways_of_associativity.attr,
21381+ &number_of_sets.attr,
21382+ &size.attr,
21383+ &shared_cpu_map.attr,
21384+ &shared_cpu_list.attr,
21385+ NULL,
21386+ NULL,
21387+ NULL,
21388+ NULL
21389+};
21390+
21391 static struct attribute **amd_l3_attrs(void)
21392 {
21393 static struct attribute **attrs;
21394@@ -1034,18 +1050,7 @@ static struct attribute **amd_l3_attrs(void)
21395
21396 n = ARRAY_SIZE(default_attrs);
21397
21398- if (amd_nb_has_feature(AMD_NB_L3_INDEX_DISABLE))
21399- n += 2;
21400-
21401- if (amd_nb_has_feature(AMD_NB_L3_PARTITIONING))
21402- n += 1;
21403-
21404- attrs = kzalloc(n * sizeof (struct attribute *), GFP_KERNEL);
21405- if (attrs == NULL)
21406- return attrs = default_attrs;
21407-
21408- for (n = 0; default_attrs[n]; n++)
21409- attrs[n] = default_attrs[n];
21410+ attrs = default_attrs_amd_nb;
21411
21412 if (amd_nb_has_feature(AMD_NB_L3_INDEX_DISABLE)) {
21413 attrs[n++] = &cache_disable_0.attr;
21414@@ -1096,6 +1101,13 @@ static struct kobj_type ktype_cache = {
21415 .default_attrs = default_attrs,
21416 };
21417
21418+#ifdef CONFIG_AMD_NB
21419+static struct kobj_type ktype_cache_amd_nb = {
21420+ .sysfs_ops = &sysfs_ops,
21421+ .default_attrs = default_attrs_amd_nb,
21422+};
21423+#endif
21424+
21425 static struct kobj_type ktype_percpu_entry = {
21426 .sysfs_ops = &sysfs_ops,
21427 };
21428@@ -1161,20 +1173,26 @@ static int cache_add_dev(struct device *dev)
21429 return retval;
21430 }
21431
21432+#ifdef CONFIG_AMD_NB
21433+ amd_l3_attrs();
21434+#endif
21435+
21436 for (i = 0; i < num_cache_leaves; i++) {
21437+ struct kobj_type *ktype;
21438+
21439 this_object = INDEX_KOBJECT_PTR(cpu, i);
21440 this_object->cpu = cpu;
21441 this_object->index = i;
21442
21443 this_leaf = CPUID4_INFO_IDX(cpu, i);
21444
21445- ktype_cache.default_attrs = default_attrs;
21446+ ktype = &ktype_cache;
21447 #ifdef CONFIG_AMD_NB
21448 if (this_leaf->base.nb)
21449- ktype_cache.default_attrs = amd_l3_attrs();
21450+ ktype = &ktype_cache_amd_nb;
21451 #endif
21452 retval = kobject_init_and_add(&(this_object->kobj),
21453- &ktype_cache,
21454+ ktype,
21455 per_cpu(ici_cache_kobject, cpu),
21456 "index%1lu", i);
21457 if (unlikely(retval)) {
21458diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c
21459index 11dd8f2..fd88f68 100644
21460--- a/arch/x86/kernel/cpu/mcheck/mce.c
21461+++ b/arch/x86/kernel/cpu/mcheck/mce.c
21462@@ -47,6 +47,7 @@
21463 #include <asm/tlbflush.h>
21464 #include <asm/mce.h>
21465 #include <asm/msr.h>
21466+#include <asm/local.h>
21467
21468 #include "mce-internal.h"
21469
21470@@ -258,7 +259,7 @@ static void print_mce(struct mce *m)
21471 !(m->mcgstatus & MCG_STATUS_EIPV) ? " !INEXACT!" : "",
21472 m->cs, m->ip);
21473
21474- if (m->cs == __KERNEL_CS)
21475+ if (m->cs == __KERNEL_CS || m->cs == __KERNEXEC_KERNEL_CS)
21476 print_symbol("{%s}", m->ip);
21477 pr_cont("\n");
21478 }
21479@@ -291,10 +292,10 @@ static void print_mce(struct mce *m)
21480
21481 #define PANIC_TIMEOUT 5 /* 5 seconds */
21482
21483-static atomic_t mce_panicked;
21484+static atomic_unchecked_t mce_panicked;
21485
21486 static int fake_panic;
21487-static atomic_t mce_fake_panicked;
21488+static atomic_unchecked_t mce_fake_panicked;
21489
21490 /* Panic in progress. Enable interrupts and wait for final IPI */
21491 static void wait_for_panic(void)
21492@@ -318,7 +319,7 @@ static void mce_panic(const char *msg, struct mce *final, char *exp)
21493 /*
21494 * Make sure only one CPU runs in machine check panic
21495 */
21496- if (atomic_inc_return(&mce_panicked) > 1)
21497+ if (atomic_inc_return_unchecked(&mce_panicked) > 1)
21498 wait_for_panic();
21499 barrier();
21500
21501@@ -326,7 +327,7 @@ static void mce_panic(const char *msg, struct mce *final, char *exp)
21502 console_verbose();
21503 } else {
21504 /* Don't log too much for fake panic */
21505- if (atomic_inc_return(&mce_fake_panicked) > 1)
21506+ if (atomic_inc_return_unchecked(&mce_fake_panicked) > 1)
21507 return;
21508 }
21509 /* First print corrected ones that are still unlogged */
21510@@ -365,7 +366,7 @@ static void mce_panic(const char *msg, struct mce *final, char *exp)
21511 if (!fake_panic) {
21512 if (panic_timeout == 0)
21513 panic_timeout = mca_cfg.panic_timeout;
21514- panic(msg);
21515+ panic("%s", msg);
21516 } else
21517 pr_emerg(HW_ERR "Fake kernel panic: %s\n", msg);
21518 }
21519@@ -746,7 +747,7 @@ static int mce_timed_out(u64 *t, const char *msg)
21520 * might have been modified by someone else.
21521 */
21522 rmb();
21523- if (atomic_read(&mce_panicked))
21524+ if (atomic_read_unchecked(&mce_panicked))
21525 wait_for_panic();
21526 if (!mca_cfg.monarch_timeout)
21527 goto out;
21528@@ -1672,7 +1673,7 @@ static void unexpected_machine_check(struct pt_regs *regs, long error_code)
21529 }
21530
21531 /* Call the installed machine check handler for this CPU setup. */
21532-void (*machine_check_vector)(struct pt_regs *, long error_code) =
21533+void (*machine_check_vector)(struct pt_regs *, long error_code) __read_only =
21534 unexpected_machine_check;
21535
21536 /*
21537@@ -1695,7 +1696,9 @@ void mcheck_cpu_init(struct cpuinfo_x86 *c)
21538 return;
21539 }
21540
21541+ pax_open_kernel();
21542 machine_check_vector = do_machine_check;
21543+ pax_close_kernel();
21544
21545 __mcheck_cpu_init_generic();
21546 __mcheck_cpu_init_vendor(c);
21547@@ -1709,7 +1712,7 @@ void mcheck_cpu_init(struct cpuinfo_x86 *c)
21548 */
21549
21550 static DEFINE_SPINLOCK(mce_chrdev_state_lock);
21551-static int mce_chrdev_open_count; /* #times opened */
21552+static local_t mce_chrdev_open_count; /* #times opened */
21553 static int mce_chrdev_open_exclu; /* already open exclusive? */
21554
21555 static int mce_chrdev_open(struct inode *inode, struct file *file)
21556@@ -1717,7 +1720,7 @@ static int mce_chrdev_open(struct inode *inode, struct file *file)
21557 spin_lock(&mce_chrdev_state_lock);
21558
21559 if (mce_chrdev_open_exclu ||
21560- (mce_chrdev_open_count && (file->f_flags & O_EXCL))) {
21561+ (local_read(&mce_chrdev_open_count) && (file->f_flags & O_EXCL))) {
21562 spin_unlock(&mce_chrdev_state_lock);
21563
21564 return -EBUSY;
21565@@ -1725,7 +1728,7 @@ static int mce_chrdev_open(struct inode *inode, struct file *file)
21566
21567 if (file->f_flags & O_EXCL)
21568 mce_chrdev_open_exclu = 1;
21569- mce_chrdev_open_count++;
21570+ local_inc(&mce_chrdev_open_count);
21571
21572 spin_unlock(&mce_chrdev_state_lock);
21573
21574@@ -1736,7 +1739,7 @@ static int mce_chrdev_release(struct inode *inode, struct file *file)
21575 {
21576 spin_lock(&mce_chrdev_state_lock);
21577
21578- mce_chrdev_open_count--;
21579+ local_dec(&mce_chrdev_open_count);
21580 mce_chrdev_open_exclu = 0;
21581
21582 spin_unlock(&mce_chrdev_state_lock);
21583@@ -2411,7 +2414,7 @@ static __init void mce_init_banks(void)
21584
21585 for (i = 0; i < mca_cfg.banks; i++) {
21586 struct mce_bank *b = &mce_banks[i];
21587- struct device_attribute *a = &b->attr;
21588+ device_attribute_no_const *a = &b->attr;
21589
21590 sysfs_attr_init(&a->attr);
21591 a->attr.name = b->attrname;
21592@@ -2518,7 +2521,7 @@ struct dentry *mce_get_debugfs_dir(void)
21593 static void mce_reset(void)
21594 {
21595 cpu_missing = 0;
21596- atomic_set(&mce_fake_panicked, 0);
21597+ atomic_set_unchecked(&mce_fake_panicked, 0);
21598 atomic_set(&mce_executing, 0);
21599 atomic_set(&mce_callin, 0);
21600 atomic_set(&global_nwo, 0);
21601diff --git a/arch/x86/kernel/cpu/mcheck/p5.c b/arch/x86/kernel/cpu/mcheck/p5.c
21602index 737b0ad..09ec66e 100644
21603--- a/arch/x86/kernel/cpu/mcheck/p5.c
21604+++ b/arch/x86/kernel/cpu/mcheck/p5.c
21605@@ -12,6 +12,7 @@
21606 #include <asm/tlbflush.h>
21607 #include <asm/mce.h>
21608 #include <asm/msr.h>
21609+#include <asm/pgtable.h>
21610
21611 /* By default disabled */
21612 int mce_p5_enabled __read_mostly;
21613@@ -55,7 +56,9 @@ void intel_p5_mcheck_init(struct cpuinfo_x86 *c)
21614 if (!cpu_has(c, X86_FEATURE_MCE))
21615 return;
21616
21617+ pax_open_kernel();
21618 machine_check_vector = pentium_machine_check;
21619+ pax_close_kernel();
21620 /* Make sure the vector pointer is visible before we enable MCEs: */
21621 wmb();
21622
21623diff --git a/arch/x86/kernel/cpu/mcheck/winchip.c b/arch/x86/kernel/cpu/mcheck/winchip.c
21624index 44f1382..315b292 100644
21625--- a/arch/x86/kernel/cpu/mcheck/winchip.c
21626+++ b/arch/x86/kernel/cpu/mcheck/winchip.c
21627@@ -11,6 +11,7 @@
21628 #include <asm/tlbflush.h>
21629 #include <asm/mce.h>
21630 #include <asm/msr.h>
21631+#include <asm/pgtable.h>
21632
21633 /* Machine check handler for WinChip C6: */
21634 static void winchip_machine_check(struct pt_regs *regs, long error_code)
21635@@ -28,7 +29,9 @@ void winchip_mcheck_init(struct cpuinfo_x86 *c)
21636 {
21637 u32 lo, hi;
21638
21639+ pax_open_kernel();
21640 machine_check_vector = winchip_machine_check;
21641+ pax_close_kernel();
21642 /* Make sure the vector pointer is visible before we enable MCEs: */
21643 wmb();
21644
21645diff --git a/arch/x86/kernel/cpu/microcode/core.c b/arch/x86/kernel/cpu/microcode/core.c
21646index 36a8361..e7058c2 100644
21647--- a/arch/x86/kernel/cpu/microcode/core.c
21648+++ b/arch/x86/kernel/cpu/microcode/core.c
21649@@ -518,7 +518,7 @@ mc_cpu_callback(struct notifier_block *nb, unsigned long action, void *hcpu)
21650 return NOTIFY_OK;
21651 }
21652
21653-static struct notifier_block __refdata mc_cpu_notifier = {
21654+static struct notifier_block mc_cpu_notifier = {
21655 .notifier_call = mc_cpu_callback,
21656 };
21657
21658diff --git a/arch/x86/kernel/cpu/microcode/intel.c b/arch/x86/kernel/cpu/microcode/intel.c
21659index 746e7fd..8dc677e 100644
21660--- a/arch/x86/kernel/cpu/microcode/intel.c
21661+++ b/arch/x86/kernel/cpu/microcode/intel.c
21662@@ -298,13 +298,13 @@ static enum ucode_state request_microcode_fw(int cpu, struct device *device,
21663
21664 static int get_ucode_user(void *to, const void *from, size_t n)
21665 {
21666- return copy_from_user(to, from, n);
21667+ return copy_from_user(to, (const void __force_user *)from, n);
21668 }
21669
21670 static enum ucode_state
21671 request_microcode_user(int cpu, const void __user *buf, size_t size)
21672 {
21673- return generic_load_microcode(cpu, (void *)buf, size, &get_ucode_user);
21674+ return generic_load_microcode(cpu, (__force_kernel void *)buf, size, &get_ucode_user);
21675 }
21676
21677 static void microcode_fini_cpu(int cpu)
21678diff --git a/arch/x86/kernel/cpu/mtrr/main.c b/arch/x86/kernel/cpu/mtrr/main.c
21679index ea5f363..cb0e905 100644
21680--- a/arch/x86/kernel/cpu/mtrr/main.c
21681+++ b/arch/x86/kernel/cpu/mtrr/main.c
21682@@ -66,7 +66,7 @@ static DEFINE_MUTEX(mtrr_mutex);
21683 u64 size_or_mask, size_and_mask;
21684 static bool mtrr_aps_delayed_init;
21685
21686-static const struct mtrr_ops *mtrr_ops[X86_VENDOR_NUM];
21687+static const struct mtrr_ops *mtrr_ops[X86_VENDOR_NUM] __read_only;
21688
21689 const struct mtrr_ops *mtrr_if;
21690
21691diff --git a/arch/x86/kernel/cpu/mtrr/mtrr.h b/arch/x86/kernel/cpu/mtrr/mtrr.h
21692index df5e41f..816c719 100644
21693--- a/arch/x86/kernel/cpu/mtrr/mtrr.h
21694+++ b/arch/x86/kernel/cpu/mtrr/mtrr.h
21695@@ -25,7 +25,7 @@ struct mtrr_ops {
21696 int (*validate_add_page)(unsigned long base, unsigned long size,
21697 unsigned int type);
21698 int (*have_wrcomb)(void);
21699-};
21700+} __do_const;
21701
21702 extern int generic_get_free_region(unsigned long base, unsigned long size,
21703 int replace_reg);
21704diff --git a/arch/x86/kernel/cpu/perf_event.c b/arch/x86/kernel/cpu/perf_event.c
21705index b71a7f8..534af0e 100644
21706--- a/arch/x86/kernel/cpu/perf_event.c
21707+++ b/arch/x86/kernel/cpu/perf_event.c
21708@@ -1376,7 +1376,7 @@ static void __init pmu_check_apic(void)
21709
21710 }
21711
21712-static struct attribute_group x86_pmu_format_group = {
21713+static attribute_group_no_const x86_pmu_format_group = {
21714 .name = "format",
21715 .attrs = NULL,
21716 };
21717@@ -1475,7 +1475,7 @@ static struct attribute *events_attr[] = {
21718 NULL,
21719 };
21720
21721-static struct attribute_group x86_pmu_events_group = {
21722+static attribute_group_no_const x86_pmu_events_group = {
21723 .name = "events",
21724 .attrs = events_attr,
21725 };
21726@@ -2037,7 +2037,7 @@ static unsigned long get_segment_base(unsigned int segment)
21727 if (idx > GDT_ENTRIES)
21728 return 0;
21729
21730- desc = raw_cpu_ptr(gdt_page.gdt);
21731+ desc = get_cpu_gdt_table(smp_processor_id());
21732 }
21733
21734 return get_desc_base(desc + idx);
21735@@ -2127,7 +2127,7 @@ perf_callchain_user(struct perf_callchain_entry *entry, struct pt_regs *regs)
21736 break;
21737
21738 perf_callchain_store(entry, frame.return_address);
21739- fp = frame.next_frame;
21740+ fp = (const void __force_user *)frame.next_frame;
21741 }
21742 }
21743
21744diff --git a/arch/x86/kernel/cpu/perf_event_amd_iommu.c b/arch/x86/kernel/cpu/perf_event_amd_iommu.c
21745index 97242a9..cf9c30e 100644
21746--- a/arch/x86/kernel/cpu/perf_event_amd_iommu.c
21747+++ b/arch/x86/kernel/cpu/perf_event_amd_iommu.c
21748@@ -402,7 +402,7 @@ static void perf_iommu_del(struct perf_event *event, int flags)
21749 static __init int _init_events_attrs(struct perf_amd_iommu *perf_iommu)
21750 {
21751 struct attribute **attrs;
21752- struct attribute_group *attr_group;
21753+ attribute_group_no_const *attr_group;
21754 int i = 0, j;
21755
21756 while (amd_iommu_v2_event_descs[i].attr.attr.name)
21757diff --git a/arch/x86/kernel/cpu/perf_event_intel.c b/arch/x86/kernel/cpu/perf_event_intel.c
21758index 2589906..1ca1000 100644
21759--- a/arch/x86/kernel/cpu/perf_event_intel.c
21760+++ b/arch/x86/kernel/cpu/perf_event_intel.c
21761@@ -2353,10 +2353,10 @@ __init int intel_pmu_init(void)
21762 x86_pmu.num_counters_fixed = max((int)edx.split.num_counters_fixed, 3);
21763
21764 if (boot_cpu_has(X86_FEATURE_PDCM)) {
21765- u64 capabilities;
21766+ u64 capabilities = x86_pmu.intel_cap.capabilities;
21767
21768- rdmsrl(MSR_IA32_PERF_CAPABILITIES, capabilities);
21769- x86_pmu.intel_cap.capabilities = capabilities;
21770+ if (rdmsrl_safe(MSR_IA32_PERF_CAPABILITIES, &x86_pmu.intel_cap.capabilities))
21771+ x86_pmu.intel_cap.capabilities = capabilities;
21772 }
21773
21774 intel_ds_init();
21775diff --git a/arch/x86/kernel/cpu/perf_event_intel_rapl.c b/arch/x86/kernel/cpu/perf_event_intel_rapl.c
21776index 76d8cbe..e5f9681 100644
21777--- a/arch/x86/kernel/cpu/perf_event_intel_rapl.c
21778+++ b/arch/x86/kernel/cpu/perf_event_intel_rapl.c
21779@@ -465,7 +465,7 @@ static struct attribute *rapl_events_hsw_attr[] = {
21780 NULL,
21781 };
21782
21783-static struct attribute_group rapl_pmu_events_group = {
21784+static attribute_group_no_const rapl_pmu_events_group __read_only = {
21785 .name = "events",
21786 .attrs = NULL, /* patched at runtime */
21787 };
21788diff --git a/arch/x86/kernel/cpu/perf_event_intel_uncore.c b/arch/x86/kernel/cpu/perf_event_intel_uncore.c
21789index c635b8b..b78835e 100644
21790--- a/arch/x86/kernel/cpu/perf_event_intel_uncore.c
21791+++ b/arch/x86/kernel/cpu/perf_event_intel_uncore.c
21792@@ -733,7 +733,7 @@ static void __init uncore_types_exit(struct intel_uncore_type **types)
21793 static int __init uncore_type_init(struct intel_uncore_type *type)
21794 {
21795 struct intel_uncore_pmu *pmus;
21796- struct attribute_group *attr_group;
21797+ attribute_group_no_const *attr_group;
21798 struct attribute **attrs;
21799 int i, j;
21800
21801diff --git a/arch/x86/kernel/cpu/perf_event_intel_uncore.h b/arch/x86/kernel/cpu/perf_event_intel_uncore.h
21802index 6c8c1e7..515b98a 100644
21803--- a/arch/x86/kernel/cpu/perf_event_intel_uncore.h
21804+++ b/arch/x86/kernel/cpu/perf_event_intel_uncore.h
21805@@ -114,7 +114,7 @@ struct intel_uncore_box {
21806 struct uncore_event_desc {
21807 struct kobj_attribute attr;
21808 const char *config;
21809-};
21810+} __do_const;
21811
21812 ssize_t uncore_event_show(struct kobject *kobj,
21813 struct kobj_attribute *attr, char *buf);
21814diff --git a/arch/x86/kernel/cpuid.c b/arch/x86/kernel/cpuid.c
21815index 83741a7..bd3507d 100644
21816--- a/arch/x86/kernel/cpuid.c
21817+++ b/arch/x86/kernel/cpuid.c
21818@@ -170,7 +170,7 @@ static int cpuid_class_cpu_callback(struct notifier_block *nfb,
21819 return notifier_from_errno(err);
21820 }
21821
21822-static struct notifier_block __refdata cpuid_class_cpu_notifier =
21823+static struct notifier_block cpuid_class_cpu_notifier =
21824 {
21825 .notifier_call = cpuid_class_cpu_callback,
21826 };
21827diff --git a/arch/x86/kernel/crash.c b/arch/x86/kernel/crash.c
21828index aceb2f9..c76d3e3 100644
21829--- a/arch/x86/kernel/crash.c
21830+++ b/arch/x86/kernel/crash.c
21831@@ -105,7 +105,7 @@ static void kdump_nmi_callback(int cpu, struct pt_regs *regs)
21832 #ifdef CONFIG_X86_32
21833 struct pt_regs fixed_regs;
21834
21835- if (!user_mode_vm(regs)) {
21836+ if (!user_mode(regs)) {
21837 crash_fixup_ss_esp(&fixed_regs, regs);
21838 regs = &fixed_regs;
21839 }
21840diff --git a/arch/x86/kernel/crash_dump_64.c b/arch/x86/kernel/crash_dump_64.c
21841index afa64ad..dce67dd 100644
21842--- a/arch/x86/kernel/crash_dump_64.c
21843+++ b/arch/x86/kernel/crash_dump_64.c
21844@@ -36,7 +36,7 @@ ssize_t copy_oldmem_page(unsigned long pfn, char *buf,
21845 return -ENOMEM;
21846
21847 if (userbuf) {
21848- if (copy_to_user(buf, vaddr + offset, csize)) {
21849+ if (copy_to_user((char __force_user *)buf, vaddr + offset, csize)) {
21850 iounmap(vaddr);
21851 return -EFAULT;
21852 }
21853diff --git a/arch/x86/kernel/doublefault.c b/arch/x86/kernel/doublefault.c
21854index f6dfd93..892ade4 100644
21855--- a/arch/x86/kernel/doublefault.c
21856+++ b/arch/x86/kernel/doublefault.c
21857@@ -12,7 +12,7 @@
21858
21859 #define DOUBLEFAULT_STACKSIZE (1024)
21860 static unsigned long doublefault_stack[DOUBLEFAULT_STACKSIZE];
21861-#define STACK_START (unsigned long)(doublefault_stack+DOUBLEFAULT_STACKSIZE)
21862+#define STACK_START (unsigned long)(doublefault_stack+DOUBLEFAULT_STACKSIZE-2)
21863
21864 #define ptr_ok(x) ((x) > PAGE_OFFSET && (x) < PAGE_OFFSET + MAXMEM)
21865
21866@@ -22,7 +22,7 @@ static void doublefault_fn(void)
21867 unsigned long gdt, tss;
21868
21869 native_store_gdt(&gdt_desc);
21870- gdt = gdt_desc.address;
21871+ gdt = (unsigned long)gdt_desc.address;
21872
21873 printk(KERN_EMERG "PANIC: double fault, gdt at %08lx [%d bytes]\n", gdt, gdt_desc.size);
21874
21875@@ -59,10 +59,10 @@ struct tss_struct doublefault_tss __cacheline_aligned = {
21876 /* 0x2 bit is always set */
21877 .flags = X86_EFLAGS_SF | 0x2,
21878 .sp = STACK_START,
21879- .es = __USER_DS,
21880+ .es = __KERNEL_DS,
21881 .cs = __KERNEL_CS,
21882 .ss = __KERNEL_DS,
21883- .ds = __USER_DS,
21884+ .ds = __KERNEL_DS,
21885 .fs = __KERNEL_PERCPU,
21886
21887 .__cr3 = __pa_nodebug(swapper_pg_dir),
21888diff --git a/arch/x86/kernel/dumpstack.c b/arch/x86/kernel/dumpstack.c
21889index cf3df1d..b637d9a 100644
21890--- a/arch/x86/kernel/dumpstack.c
21891+++ b/arch/x86/kernel/dumpstack.c
21892@@ -2,6 +2,9 @@
21893 * Copyright (C) 1991, 1992 Linus Torvalds
21894 * Copyright (C) 2000, 2001, 2002 Andi Kleen, SuSE Labs
21895 */
21896+#ifdef CONFIG_GRKERNSEC_HIDESYM
21897+#define __INCLUDED_BY_HIDESYM 1
21898+#endif
21899 #include <linux/kallsyms.h>
21900 #include <linux/kprobes.h>
21901 #include <linux/uaccess.h>
21902@@ -33,23 +36,21 @@ static void printk_stack_address(unsigned long address, int reliable)
21903
21904 void printk_address(unsigned long address)
21905 {
21906- pr_cont(" [<%p>] %pS\n", (void *)address, (void *)address);
21907+ pr_cont(" [<%p>] %pA\n", (void *)address, (void *)address);
21908 }
21909
21910 #ifdef CONFIG_FUNCTION_GRAPH_TRACER
21911 static void
21912 print_ftrace_graph_addr(unsigned long addr, void *data,
21913 const struct stacktrace_ops *ops,
21914- struct thread_info *tinfo, int *graph)
21915+ struct task_struct *task, int *graph)
21916 {
21917- struct task_struct *task;
21918 unsigned long ret_addr;
21919 int index;
21920
21921 if (addr != (unsigned long)return_to_handler)
21922 return;
21923
21924- task = tinfo->task;
21925 index = task->curr_ret_stack;
21926
21927 if (!task->ret_stack || index < *graph)
21928@@ -66,7 +67,7 @@ print_ftrace_graph_addr(unsigned long addr, void *data,
21929 static inline void
21930 print_ftrace_graph_addr(unsigned long addr, void *data,
21931 const struct stacktrace_ops *ops,
21932- struct thread_info *tinfo, int *graph)
21933+ struct task_struct *task, int *graph)
21934 { }
21935 #endif
21936
21937@@ -77,10 +78,8 @@ print_ftrace_graph_addr(unsigned long addr, void *data,
21938 * severe exception (double fault, nmi, stack fault, debug, mce) hardware stack
21939 */
21940
21941-static inline int valid_stack_ptr(struct thread_info *tinfo,
21942- void *p, unsigned int size, void *end)
21943+static inline int valid_stack_ptr(void *t, void *p, unsigned int size, void *end)
21944 {
21945- void *t = tinfo;
21946 if (end) {
21947 if (p < end && p >= (end-THREAD_SIZE))
21948 return 1;
21949@@ -91,14 +90,14 @@ static inline int valid_stack_ptr(struct thread_info *tinfo,
21950 }
21951
21952 unsigned long
21953-print_context_stack(struct thread_info *tinfo,
21954+print_context_stack(struct task_struct *task, void *stack_start,
21955 unsigned long *stack, unsigned long bp,
21956 const struct stacktrace_ops *ops, void *data,
21957 unsigned long *end, int *graph)
21958 {
21959 struct stack_frame *frame = (struct stack_frame *)bp;
21960
21961- while (valid_stack_ptr(tinfo, stack, sizeof(*stack), end)) {
21962+ while (valid_stack_ptr(stack_start, stack, sizeof(*stack), end)) {
21963 unsigned long addr;
21964
21965 addr = *stack;
21966@@ -110,7 +109,7 @@ print_context_stack(struct thread_info *tinfo,
21967 } else {
21968 ops->address(data, addr, 0);
21969 }
21970- print_ftrace_graph_addr(addr, data, ops, tinfo, graph);
21971+ print_ftrace_graph_addr(addr, data, ops, task, graph);
21972 }
21973 stack++;
21974 }
21975@@ -119,7 +118,7 @@ print_context_stack(struct thread_info *tinfo,
21976 EXPORT_SYMBOL_GPL(print_context_stack);
21977
21978 unsigned long
21979-print_context_stack_bp(struct thread_info *tinfo,
21980+print_context_stack_bp(struct task_struct *task, void *stack_start,
21981 unsigned long *stack, unsigned long bp,
21982 const struct stacktrace_ops *ops, void *data,
21983 unsigned long *end, int *graph)
21984@@ -127,7 +126,7 @@ print_context_stack_bp(struct thread_info *tinfo,
21985 struct stack_frame *frame = (struct stack_frame *)bp;
21986 unsigned long *ret_addr = &frame->return_address;
21987
21988- while (valid_stack_ptr(tinfo, ret_addr, sizeof(*ret_addr), end)) {
21989+ while (valid_stack_ptr(stack_start, ret_addr, sizeof(*ret_addr), end)) {
21990 unsigned long addr = *ret_addr;
21991
21992 if (!__kernel_text_address(addr))
21993@@ -136,7 +135,7 @@ print_context_stack_bp(struct thread_info *tinfo,
21994 ops->address(data, addr, 1);
21995 frame = frame->next_frame;
21996 ret_addr = &frame->return_address;
21997- print_ftrace_graph_addr(addr, data, ops, tinfo, graph);
21998+ print_ftrace_graph_addr(addr, data, ops, task, graph);
21999 }
22000
22001 return (unsigned long)frame;
22002@@ -155,7 +154,7 @@ static int print_trace_stack(void *data, char *name)
22003 static void print_trace_address(void *data, unsigned long addr, int reliable)
22004 {
22005 touch_nmi_watchdog();
22006- printk(data);
22007+ printk("%s", (char *)data);
22008 printk_stack_address(addr, reliable);
22009 }
22010
22011@@ -225,6 +224,8 @@ unsigned long oops_begin(void)
22012 EXPORT_SYMBOL_GPL(oops_begin);
22013 NOKPROBE_SYMBOL(oops_begin);
22014
22015+extern void gr_handle_kernel_exploit(void);
22016+
22017 void oops_end(unsigned long flags, struct pt_regs *regs, int signr)
22018 {
22019 if (regs && kexec_should_crash(current))
22020@@ -246,7 +247,10 @@ void oops_end(unsigned long flags, struct pt_regs *regs, int signr)
22021 panic("Fatal exception in interrupt");
22022 if (panic_on_oops)
22023 panic("Fatal exception");
22024- do_exit(signr);
22025+
22026+ gr_handle_kernel_exploit();
22027+
22028+ do_group_exit(signr);
22029 }
22030 NOKPROBE_SYMBOL(oops_end);
22031
22032@@ -278,7 +282,7 @@ int __die(const char *str, struct pt_regs *regs, long err)
22033 print_modules();
22034 show_regs(regs);
22035 #ifdef CONFIG_X86_32
22036- if (user_mode_vm(regs)) {
22037+ if (user_mode(regs)) {
22038 sp = regs->sp;
22039 ss = regs->ss & 0xffff;
22040 } else {
22041@@ -307,7 +311,7 @@ void die(const char *str, struct pt_regs *regs, long err)
22042 unsigned long flags = oops_begin();
22043 int sig = SIGSEGV;
22044
22045- if (!user_mode_vm(regs))
22046+ if (!user_mode(regs))
22047 report_bug(regs->ip, regs);
22048
22049 if (__die(str, regs, err))
22050diff --git a/arch/x86/kernel/dumpstack_32.c b/arch/x86/kernel/dumpstack_32.c
22051index 5abd4cd..ca97162 100644
22052--- a/arch/x86/kernel/dumpstack_32.c
22053+++ b/arch/x86/kernel/dumpstack_32.c
22054@@ -61,15 +61,14 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs,
22055 bp = stack_frame(task, regs);
22056
22057 for (;;) {
22058- struct thread_info *context;
22059+ void *stack_start = (void *)((unsigned long)stack & ~(THREAD_SIZE-1));
22060 void *end_stack;
22061
22062 end_stack = is_hardirq_stack(stack, cpu);
22063 if (!end_stack)
22064 end_stack = is_softirq_stack(stack, cpu);
22065
22066- context = task_thread_info(task);
22067- bp = ops->walk_stack(context, stack, bp, ops, data,
22068+ bp = ops->walk_stack(task, stack_start, stack, bp, ops, data,
22069 end_stack, &graph);
22070
22071 /* Stop if not on irq stack */
22072@@ -123,27 +122,28 @@ void show_regs(struct pt_regs *regs)
22073 int i;
22074
22075 show_regs_print_info(KERN_EMERG);
22076- __show_regs(regs, !user_mode_vm(regs));
22077+ __show_regs(regs, !user_mode(regs));
22078
22079 /*
22080 * When in-kernel, we also print out the stack and code at the
22081 * time of the fault..
22082 */
22083- if (!user_mode_vm(regs)) {
22084+ if (!user_mode(regs)) {
22085 unsigned int code_prologue = code_bytes * 43 / 64;
22086 unsigned int code_len = code_bytes;
22087 unsigned char c;
22088 u8 *ip;
22089+ unsigned long cs_base = get_desc_base(&get_cpu_gdt_table(0)[(0xffff & regs->cs) >> 3]);
22090
22091 pr_emerg("Stack:\n");
22092 show_stack_log_lvl(NULL, regs, &regs->sp, 0, KERN_EMERG);
22093
22094 pr_emerg("Code:");
22095
22096- ip = (u8 *)regs->ip - code_prologue;
22097+ ip = (u8 *)regs->ip - code_prologue + cs_base;
22098 if (ip < (u8 *)PAGE_OFFSET || probe_kernel_address(ip, c)) {
22099 /* try starting at IP */
22100- ip = (u8 *)regs->ip;
22101+ ip = (u8 *)regs->ip + cs_base;
22102 code_len = code_len - code_prologue + 1;
22103 }
22104 for (i = 0; i < code_len; i++, ip++) {
22105@@ -152,7 +152,7 @@ void show_regs(struct pt_regs *regs)
22106 pr_cont(" Bad EIP value.");
22107 break;
22108 }
22109- if (ip == (u8 *)regs->ip)
22110+ if (ip == (u8 *)regs->ip + cs_base)
22111 pr_cont(" <%02x>", c);
22112 else
22113 pr_cont(" %02x", c);
22114@@ -165,6 +165,7 @@ int is_valid_bugaddr(unsigned long ip)
22115 {
22116 unsigned short ud2;
22117
22118+ ip = ktla_ktva(ip);
22119 if (ip < PAGE_OFFSET)
22120 return 0;
22121 if (probe_kernel_address((unsigned short *)ip, ud2))
22122@@ -172,3 +173,15 @@ int is_valid_bugaddr(unsigned long ip)
22123
22124 return ud2 == 0x0b0f;
22125 }
22126+
22127+#if defined(CONFIG_PAX_MEMORY_STACKLEAK) || defined(CONFIG_PAX_USERCOPY)
22128+void __used pax_check_alloca(unsigned long size)
22129+{
22130+ unsigned long sp = (unsigned long)&sp, stack_left;
22131+
22132+ /* all kernel stacks are of the same size */
22133+ stack_left = sp & (THREAD_SIZE - 1);
22134+ BUG_ON(stack_left < 256 || size >= stack_left - 256);
22135+}
22136+EXPORT_SYMBOL(pax_check_alloca);
22137+#endif
22138diff --git a/arch/x86/kernel/dumpstack_64.c b/arch/x86/kernel/dumpstack_64.c
22139index ff86f19..a2efee8 100644
22140--- a/arch/x86/kernel/dumpstack_64.c
22141+++ b/arch/x86/kernel/dumpstack_64.c
22142@@ -153,12 +153,12 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs,
22143 const struct stacktrace_ops *ops, void *data)
22144 {
22145 const unsigned cpu = get_cpu();
22146- struct thread_info *tinfo;
22147 unsigned long *irq_stack = (unsigned long *)per_cpu(irq_stack_ptr, cpu);
22148 unsigned long dummy;
22149 unsigned used = 0;
22150 int graph = 0;
22151 int done = 0;
22152+ void *stack_start;
22153
22154 if (!task)
22155 task = current;
22156@@ -179,7 +179,6 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs,
22157 * current stack address. If the stacks consist of nested
22158 * exceptions
22159 */
22160- tinfo = task_thread_info(task);
22161 while (!done) {
22162 unsigned long *stack_end;
22163 enum stack_type stype;
22164@@ -202,7 +201,7 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs,
22165 if (ops->stack(data, id) < 0)
22166 break;
22167
22168- bp = ops->walk_stack(tinfo, stack, bp, ops,
22169+ bp = ops->walk_stack(task, stack_end - EXCEPTION_STKSZ, stack, bp, ops,
22170 data, stack_end, &graph);
22171 ops->stack(data, "<EOE>");
22172 /*
22173@@ -210,6 +209,8 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs,
22174 * second-to-last pointer (index -2 to end) in the
22175 * exception stack:
22176 */
22177+ if ((u16)stack_end[-1] != __KERNEL_DS)
22178+ goto out;
22179 stack = (unsigned long *) stack_end[-2];
22180 done = 0;
22181 break;
22182@@ -218,7 +219,7 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs,
22183
22184 if (ops->stack(data, "IRQ") < 0)
22185 break;
22186- bp = ops->walk_stack(tinfo, stack, bp,
22187+ bp = ops->walk_stack(task, irq_stack, stack, bp,
22188 ops, data, stack_end, &graph);
22189 /*
22190 * We link to the next stack (which would be
22191@@ -240,7 +241,9 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs,
22192 /*
22193 * This handles the process stack:
22194 */
22195- bp = ops->walk_stack(tinfo, stack, bp, ops, data, NULL, &graph);
22196+ stack_start = (void *)((unsigned long)stack & ~(THREAD_SIZE-1));
22197+ bp = ops->walk_stack(task, stack_start, stack, bp, ops, data, NULL, &graph);
22198+out:
22199 put_cpu();
22200 }
22201 EXPORT_SYMBOL(dump_trace);
22202@@ -344,8 +347,55 @@ int is_valid_bugaddr(unsigned long ip)
22203 {
22204 unsigned short ud2;
22205
22206- if (__copy_from_user(&ud2, (const void __user *) ip, sizeof(ud2)))
22207+ if (probe_kernel_address((unsigned short *)ip, ud2))
22208 return 0;
22209
22210 return ud2 == 0x0b0f;
22211 }
22212+
22213+#if defined(CONFIG_PAX_MEMORY_STACKLEAK) || defined(CONFIG_PAX_USERCOPY)
22214+void __used pax_check_alloca(unsigned long size)
22215+{
22216+ unsigned long sp = (unsigned long)&sp, stack_start, stack_end;
22217+ unsigned cpu, used;
22218+ char *id;
22219+
22220+ /* check the process stack first */
22221+ stack_start = (unsigned long)task_stack_page(current);
22222+ stack_end = stack_start + THREAD_SIZE;
22223+ if (likely(stack_start <= sp && sp < stack_end)) {
22224+ unsigned long stack_left = sp & (THREAD_SIZE - 1);
22225+ BUG_ON(stack_left < 256 || size >= stack_left - 256);
22226+ return;
22227+ }
22228+
22229+ cpu = get_cpu();
22230+
22231+ /* check the irq stacks */
22232+ stack_end = (unsigned long)per_cpu(irq_stack_ptr, cpu);
22233+ stack_start = stack_end - IRQ_STACK_SIZE;
22234+ if (stack_start <= sp && sp < stack_end) {
22235+ unsigned long stack_left = sp & (IRQ_STACK_SIZE - 1);
22236+ put_cpu();
22237+ BUG_ON(stack_left < 256 || size >= stack_left - 256);
22238+ return;
22239+ }
22240+
22241+ /* check the exception stacks */
22242+ used = 0;
22243+ stack_end = (unsigned long)in_exception_stack(cpu, sp, &used, &id);
22244+ stack_start = stack_end - EXCEPTION_STKSZ;
22245+ if (stack_end && stack_start <= sp && sp < stack_end) {
22246+ unsigned long stack_left = sp & (EXCEPTION_STKSZ - 1);
22247+ put_cpu();
22248+ BUG_ON(stack_left < 256 || size >= stack_left - 256);
22249+ return;
22250+ }
22251+
22252+ put_cpu();
22253+
22254+ /* unknown stack */
22255+ BUG();
22256+}
22257+EXPORT_SYMBOL(pax_check_alloca);
22258+#endif
22259diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c
22260index 46201de..ebffabf 100644
22261--- a/arch/x86/kernel/e820.c
22262+++ b/arch/x86/kernel/e820.c
22263@@ -794,8 +794,8 @@ unsigned long __init e820_end_of_low_ram_pfn(void)
22264
22265 static void early_panic(char *msg)
22266 {
22267- early_printk(msg);
22268- panic(msg);
22269+ early_printk("%s", msg);
22270+ panic("%s", msg);
22271 }
22272
22273 static int userdef __initdata;
22274diff --git a/arch/x86/kernel/early_printk.c b/arch/x86/kernel/early_printk.c
22275index a62536a..8444df4 100644
22276--- a/arch/x86/kernel/early_printk.c
22277+++ b/arch/x86/kernel/early_printk.c
22278@@ -7,6 +7,7 @@
22279 #include <linux/pci_regs.h>
22280 #include <linux/pci_ids.h>
22281 #include <linux/errno.h>
22282+#include <linux/sched.h>
22283 #include <asm/io.h>
22284 #include <asm/processor.h>
22285 #include <asm/fcntl.h>
22286diff --git a/arch/x86/kernel/entry_32.S b/arch/x86/kernel/entry_32.S
22287index 31e2d5b..b31c76d 100644
22288--- a/arch/x86/kernel/entry_32.S
22289+++ b/arch/x86/kernel/entry_32.S
22290@@ -177,13 +177,154 @@
22291 /*CFI_REL_OFFSET gs, PT_GS*/
22292 .endm
22293 .macro SET_KERNEL_GS reg
22294+
22295+#ifdef CONFIG_CC_STACKPROTECTOR
22296 movl $(__KERNEL_STACK_CANARY), \reg
22297+#elif defined(CONFIG_PAX_MEMORY_UDEREF)
22298+ movl $(__USER_DS), \reg
22299+#else
22300+ xorl \reg, \reg
22301+#endif
22302+
22303 movl \reg, %gs
22304 .endm
22305
22306 #endif /* CONFIG_X86_32_LAZY_GS */
22307
22308-.macro SAVE_ALL
22309+.macro pax_enter_kernel
22310+#ifdef CONFIG_PAX_KERNEXEC
22311+ call pax_enter_kernel
22312+#endif
22313+.endm
22314+
22315+.macro pax_exit_kernel
22316+#ifdef CONFIG_PAX_KERNEXEC
22317+ call pax_exit_kernel
22318+#endif
22319+.endm
22320+
22321+#ifdef CONFIG_PAX_KERNEXEC
22322+ENTRY(pax_enter_kernel)
22323+#ifdef CONFIG_PARAVIRT
22324+ pushl %eax
22325+ pushl %ecx
22326+ call PARA_INDIRECT(pv_cpu_ops+PV_CPU_read_cr0)
22327+ mov %eax, %esi
22328+#else
22329+ mov %cr0, %esi
22330+#endif
22331+ bts $16, %esi
22332+ jnc 1f
22333+ mov %cs, %esi
22334+ cmp $__KERNEL_CS, %esi
22335+ jz 3f
22336+ ljmp $__KERNEL_CS, $3f
22337+1: ljmp $__KERNEXEC_KERNEL_CS, $2f
22338+2:
22339+#ifdef CONFIG_PARAVIRT
22340+ mov %esi, %eax
22341+ call PARA_INDIRECT(pv_cpu_ops+PV_CPU_write_cr0)
22342+#else
22343+ mov %esi, %cr0
22344+#endif
22345+3:
22346+#ifdef CONFIG_PARAVIRT
22347+ popl %ecx
22348+ popl %eax
22349+#endif
22350+ ret
22351+ENDPROC(pax_enter_kernel)
22352+
22353+ENTRY(pax_exit_kernel)
22354+#ifdef CONFIG_PARAVIRT
22355+ pushl %eax
22356+ pushl %ecx
22357+#endif
22358+ mov %cs, %esi
22359+ cmp $__KERNEXEC_KERNEL_CS, %esi
22360+ jnz 2f
22361+#ifdef CONFIG_PARAVIRT
22362+ call PARA_INDIRECT(pv_cpu_ops+PV_CPU_read_cr0);
22363+ mov %eax, %esi
22364+#else
22365+ mov %cr0, %esi
22366+#endif
22367+ btr $16, %esi
22368+ ljmp $__KERNEL_CS, $1f
22369+1:
22370+#ifdef CONFIG_PARAVIRT
22371+ mov %esi, %eax
22372+ call PARA_INDIRECT(pv_cpu_ops+PV_CPU_write_cr0);
22373+#else
22374+ mov %esi, %cr0
22375+#endif
22376+2:
22377+#ifdef CONFIG_PARAVIRT
22378+ popl %ecx
22379+ popl %eax
22380+#endif
22381+ ret
22382+ENDPROC(pax_exit_kernel)
22383+#endif
22384+
22385+ .macro pax_erase_kstack
22386+#ifdef CONFIG_PAX_MEMORY_STACKLEAK
22387+ call pax_erase_kstack
22388+#endif
22389+ .endm
22390+
22391+#ifdef CONFIG_PAX_MEMORY_STACKLEAK
22392+/*
22393+ * ebp: thread_info
22394+ */
22395+ENTRY(pax_erase_kstack)
22396+ pushl %edi
22397+ pushl %ecx
22398+ pushl %eax
22399+
22400+ mov TI_lowest_stack(%ebp), %edi
22401+ mov $-0xBEEF, %eax
22402+ std
22403+
22404+1: mov %edi, %ecx
22405+ and $THREAD_SIZE_asm - 1, %ecx
22406+ shr $2, %ecx
22407+ repne scasl
22408+ jecxz 2f
22409+
22410+ cmp $2*16, %ecx
22411+ jc 2f
22412+
22413+ mov $2*16, %ecx
22414+ repe scasl
22415+ jecxz 2f
22416+ jne 1b
22417+
22418+2: cld
22419+ or $2*4, %edi
22420+ mov %esp, %ecx
22421+ sub %edi, %ecx
22422+
22423+ cmp $THREAD_SIZE_asm, %ecx
22424+ jb 3f
22425+ ud2
22426+3:
22427+
22428+ shr $2, %ecx
22429+ rep stosl
22430+
22431+ mov TI_task_thread_sp0(%ebp), %edi
22432+ sub $128, %edi
22433+ mov %edi, TI_lowest_stack(%ebp)
22434+
22435+ popl %eax
22436+ popl %ecx
22437+ popl %edi
22438+ ret
22439+ENDPROC(pax_erase_kstack)
22440+#endif
22441+
22442+.macro __SAVE_ALL _DS
22443 cld
22444 PUSH_GS
22445 pushl_cfi %fs
22446@@ -206,7 +347,7 @@
22447 CFI_REL_OFFSET ecx, 0
22448 pushl_cfi %ebx
22449 CFI_REL_OFFSET ebx, 0
22450- movl $(__USER_DS), %edx
22451+ movl $\_DS, %edx
22452 movl %edx, %ds
22453 movl %edx, %es
22454 movl $(__KERNEL_PERCPU), %edx
22455@@ -214,6 +355,15 @@
22456 SET_KERNEL_GS %edx
22457 .endm
22458
22459+.macro SAVE_ALL
22460+#if defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
22461+ __SAVE_ALL __KERNEL_DS
22462+ pax_enter_kernel
22463+#else
22464+ __SAVE_ALL __USER_DS
22465+#endif
22466+.endm
22467+
22468 .macro RESTORE_INT_REGS
22469 popl_cfi %ebx
22470 CFI_RESTORE ebx
22471@@ -297,7 +447,7 @@ ENTRY(ret_from_fork)
22472 popfl_cfi
22473 jmp syscall_exit
22474 CFI_ENDPROC
22475-END(ret_from_fork)
22476+ENDPROC(ret_from_fork)
22477
22478 ENTRY(ret_from_kernel_thread)
22479 CFI_STARTPROC
22480@@ -340,7 +490,15 @@ ret_from_intr:
22481 andl $SEGMENT_RPL_MASK, %eax
22482 #endif
22483 cmpl $USER_RPL, %eax
22484+
22485+#ifdef CONFIG_PAX_KERNEXEC
22486+ jae resume_userspace
22487+
22488+ pax_exit_kernel
22489+ jmp resume_kernel
22490+#else
22491 jb resume_kernel # not returning to v8086 or userspace
22492+#endif
22493
22494 ENTRY(resume_userspace)
22495 LOCKDEP_SYS_EXIT
22496@@ -352,8 +510,8 @@ ENTRY(resume_userspace)
22497 andl $_TIF_WORK_MASK, %ecx # is there any work to be done on
22498 # int/exception return?
22499 jne work_pending
22500- jmp restore_all
22501-END(ret_from_exception)
22502+ jmp restore_all_pax
22503+ENDPROC(ret_from_exception)
22504
22505 #ifdef CONFIG_PREEMPT
22506 ENTRY(resume_kernel)
22507@@ -365,7 +523,7 @@ need_resched:
22508 jz restore_all
22509 call preempt_schedule_irq
22510 jmp need_resched
22511-END(resume_kernel)
22512+ENDPROC(resume_kernel)
22513 #endif
22514 CFI_ENDPROC
22515
22516@@ -395,30 +553,45 @@ sysenter_past_esp:
22517 /*CFI_REL_OFFSET cs, 0*/
22518 /*
22519 * Push current_thread_info()->sysenter_return to the stack.
22520- * A tiny bit of offset fixup is necessary - 4*4 means the 4 words
22521- * pushed above; +8 corresponds to copy_thread's esp0 setting.
22522 */
22523- pushl_cfi ((TI_sysenter_return)-THREAD_SIZE+8+4*4)(%esp)
22524+ pushl_cfi $0
22525 CFI_REL_OFFSET eip, 0
22526
22527 pushl_cfi %eax
22528 SAVE_ALL
22529+ GET_THREAD_INFO(%ebp)
22530+ movl TI_sysenter_return(%ebp),%ebp
22531+ movl %ebp,PT_EIP(%esp)
22532 ENABLE_INTERRUPTS(CLBR_NONE)
22533
22534 /*
22535 * Load the potential sixth argument from user stack.
22536 * Careful about security.
22537 */
22538+ movl PT_OLDESP(%esp),%ebp
22539+
22540+#ifdef CONFIG_PAX_MEMORY_UDEREF
22541+ mov PT_OLDSS(%esp),%ds
22542+1: movl %ds:(%ebp),%ebp
22543+ push %ss
22544+ pop %ds
22545+#else
22546 cmpl $__PAGE_OFFSET-3,%ebp
22547 jae syscall_fault
22548 ASM_STAC
22549 1: movl (%ebp),%ebp
22550 ASM_CLAC
22551+#endif
22552+
22553 movl %ebp,PT_EBP(%esp)
22554 _ASM_EXTABLE(1b,syscall_fault)
22555
22556 GET_THREAD_INFO(%ebp)
22557
22558+#ifdef CONFIG_PAX_RANDKSTACK
22559+ pax_erase_kstack
22560+#endif
22561+
22562 testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags(%ebp)
22563 jnz sysenter_audit
22564 sysenter_do_call:
22565@@ -434,12 +607,24 @@ sysenter_after_call:
22566 testl $_TIF_ALLWORK_MASK, %ecx
22567 jne sysexit_audit
22568 sysenter_exit:
22569+
22570+#ifdef CONFIG_PAX_RANDKSTACK
22571+ pushl_cfi %eax
22572+ movl %esp, %eax
22573+ call pax_randomize_kstack
22574+ popl_cfi %eax
22575+#endif
22576+
22577+ pax_erase_kstack
22578+
22579 /* if something modifies registers it must also disable sysexit */
22580 movl PT_EIP(%esp), %edx
22581 movl PT_OLDESP(%esp), %ecx
22582 xorl %ebp,%ebp
22583 TRACE_IRQS_ON
22584 1: mov PT_FS(%esp), %fs
22585+2: mov PT_DS(%esp), %ds
22586+3: mov PT_ES(%esp), %es
22587 PTGS_TO_GS
22588 ENABLE_INTERRUPTS_SYSEXIT
22589
22590@@ -453,6 +638,9 @@ sysenter_audit:
22591 pushl_cfi PT_ESI(%esp) /* a3: 5th arg */
22592 pushl_cfi PT_EDX+4(%esp) /* a2: 4th arg */
22593 call __audit_syscall_entry
22594+
22595+ pax_erase_kstack
22596+
22597 popl_cfi %ecx /* get that remapped edx off the stack */
22598 popl_cfi %ecx /* get that remapped esi off the stack */
22599 movl PT_EAX(%esp),%eax /* reload syscall number */
22600@@ -479,10 +667,16 @@ sysexit_audit:
22601
22602 CFI_ENDPROC
22603 .pushsection .fixup,"ax"
22604-2: movl $0,PT_FS(%esp)
22605+4: movl $0,PT_FS(%esp)
22606+ jmp 1b
22607+5: movl $0,PT_DS(%esp)
22608+ jmp 1b
22609+6: movl $0,PT_ES(%esp)
22610 jmp 1b
22611 .popsection
22612- _ASM_EXTABLE(1b,2b)
22613+ _ASM_EXTABLE(1b,4b)
22614+ _ASM_EXTABLE(2b,5b)
22615+ _ASM_EXTABLE(3b,6b)
22616 PTGS_TO_GS_EX
22617 ENDPROC(ia32_sysenter_target)
22618
22619@@ -493,6 +687,11 @@ ENTRY(system_call)
22620 pushl_cfi %eax # save orig_eax
22621 SAVE_ALL
22622 GET_THREAD_INFO(%ebp)
22623+
22624+#ifdef CONFIG_PAX_RANDKSTACK
22625+ pax_erase_kstack
22626+#endif
22627+
22628 # system call tracing in operation / emulation
22629 testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags(%ebp)
22630 jnz syscall_trace_entry
22631@@ -512,6 +711,15 @@ syscall_exit:
22632 testl $_TIF_ALLWORK_MASK, %ecx # current->work
22633 jne syscall_exit_work
22634
22635+restore_all_pax:
22636+
22637+#ifdef CONFIG_PAX_RANDKSTACK
22638+ movl %esp, %eax
22639+ call pax_randomize_kstack
22640+#endif
22641+
22642+ pax_erase_kstack
22643+
22644 restore_all:
22645 TRACE_IRQS_IRET
22646 restore_all_notrace:
22647@@ -566,14 +774,34 @@ ldt_ss:
22648 * compensating for the offset by changing to the ESPFIX segment with
22649 * a base address that matches for the difference.
22650 */
22651-#define GDT_ESPFIX_SS PER_CPU_VAR(gdt_page) + (GDT_ENTRY_ESPFIX_SS * 8)
22652+#define GDT_ESPFIX_SS (GDT_ENTRY_ESPFIX_SS * 8)(%ebx)
22653 mov %esp, %edx /* load kernel esp */
22654 mov PT_OLDESP(%esp), %eax /* load userspace esp */
22655 mov %dx, %ax /* eax: new kernel esp */
22656 sub %eax, %edx /* offset (low word is 0) */
22657+#ifdef CONFIG_SMP
22658+ movl PER_CPU_VAR(cpu_number), %ebx
22659+ shll $PAGE_SHIFT_asm, %ebx
22660+ addl $cpu_gdt_table, %ebx
22661+#else
22662+ movl $cpu_gdt_table, %ebx
22663+#endif
22664 shr $16, %edx
22665- mov %dl, GDT_ESPFIX_SS + 4 /* bits 16..23 */
22666- mov %dh, GDT_ESPFIX_SS + 7 /* bits 24..31 */
22667+
22668+#ifdef CONFIG_PAX_KERNEXEC
22669+ mov %cr0, %esi
22670+ btr $16, %esi
22671+ mov %esi, %cr0
22672+#endif
22673+
22674+ mov %dl, 4 + GDT_ESPFIX_SS /* bits 16..23 */
22675+ mov %dh, 7 + GDT_ESPFIX_SS /* bits 24..31 */
22676+
22677+#ifdef CONFIG_PAX_KERNEXEC
22678+ bts $16, %esi
22679+ mov %esi, %cr0
22680+#endif
22681+
22682 pushl_cfi $__ESPFIX_SS
22683 pushl_cfi %eax /* new kernel esp */
22684 /* Disable interrupts, but do not irqtrace this section: we
22685@@ -603,20 +831,18 @@ work_resched:
22686 movl TI_flags(%ebp), %ecx
22687 andl $_TIF_WORK_MASK, %ecx # is there any work to be done other
22688 # than syscall tracing?
22689- jz restore_all
22690+ jz restore_all_pax
22691 testb $_TIF_NEED_RESCHED, %cl
22692 jnz work_resched
22693
22694 work_notifysig: # deal with pending signals and
22695 # notify-resume requests
22696+ movl %esp, %eax
22697 #ifdef CONFIG_VM86
22698 testl $X86_EFLAGS_VM, PT_EFLAGS(%esp)
22699- movl %esp, %eax
22700 jne work_notifysig_v86 # returning to kernel-space or
22701 # vm86-space
22702 1:
22703-#else
22704- movl %esp, %eax
22705 #endif
22706 TRACE_IRQS_ON
22707 ENABLE_INTERRUPTS(CLBR_NONE)
22708@@ -637,7 +863,7 @@ work_notifysig_v86:
22709 movl %eax, %esp
22710 jmp 1b
22711 #endif
22712-END(work_pending)
22713+ENDPROC(work_pending)
22714
22715 # perform syscall exit tracing
22716 ALIGN
22717@@ -645,11 +871,14 @@ syscall_trace_entry:
22718 movl $-ENOSYS,PT_EAX(%esp)
22719 movl %esp, %eax
22720 call syscall_trace_enter
22721+
22722+ pax_erase_kstack
22723+
22724 /* What it returned is what we'll actually use. */
22725 cmpl $(NR_syscalls), %eax
22726 jnae syscall_call
22727 jmp syscall_exit
22728-END(syscall_trace_entry)
22729+ENDPROC(syscall_trace_entry)
22730
22731 # perform syscall exit tracing
22732 ALIGN
22733@@ -662,26 +891,30 @@ syscall_exit_work:
22734 movl %esp, %eax
22735 call syscall_trace_leave
22736 jmp resume_userspace
22737-END(syscall_exit_work)
22738+ENDPROC(syscall_exit_work)
22739 CFI_ENDPROC
22740
22741 RING0_INT_FRAME # can't unwind into user space anyway
22742 syscall_fault:
22743+#ifdef CONFIG_PAX_MEMORY_UDEREF
22744+ push %ss
22745+ pop %ds
22746+#endif
22747 ASM_CLAC
22748 GET_THREAD_INFO(%ebp)
22749 movl $-EFAULT,PT_EAX(%esp)
22750 jmp resume_userspace
22751-END(syscall_fault)
22752+ENDPROC(syscall_fault)
22753
22754 syscall_badsys:
22755 movl $-ENOSYS,%eax
22756 jmp syscall_after_call
22757-END(syscall_badsys)
22758+ENDPROC(syscall_badsys)
22759
22760 sysenter_badsys:
22761 movl $-ENOSYS,%eax
22762 jmp sysenter_after_call
22763-END(sysenter_badsys)
22764+ENDPROC(sysenter_badsys)
22765 CFI_ENDPROC
22766
22767 .macro FIXUP_ESPFIX_STACK
22768@@ -694,8 +927,15 @@ END(sysenter_badsys)
22769 */
22770 #ifdef CONFIG_X86_ESPFIX32
22771 /* fixup the stack */
22772- mov GDT_ESPFIX_SS + 4, %al /* bits 16..23 */
22773- mov GDT_ESPFIX_SS + 7, %ah /* bits 24..31 */
22774+#ifdef CONFIG_SMP
22775+ movl PER_CPU_VAR(cpu_number), %ebx
22776+ shll $PAGE_SHIFT_asm, %ebx
22777+ addl $cpu_gdt_table, %ebx
22778+#else
22779+ movl $cpu_gdt_table, %ebx
22780+#endif
22781+ mov 4 + GDT_ESPFIX_SS, %al /* bits 16..23 */
22782+ mov 7 + GDT_ESPFIX_SS, %ah /* bits 24..31 */
22783 shl $16, %eax
22784 addl %esp, %eax /* the adjusted stack pointer */
22785 pushl_cfi $__KERNEL_DS
22786@@ -751,7 +991,7 @@ vector=vector+1
22787 .endr
22788 2: jmp common_interrupt
22789 .endr
22790-END(irq_entries_start)
22791+ENDPROC(irq_entries_start)
22792
22793 .previous
22794 END(interrupt)
22795@@ -808,7 +1048,7 @@ ENTRY(coprocessor_error)
22796 pushl_cfi $do_coprocessor_error
22797 jmp error_code
22798 CFI_ENDPROC
22799-END(coprocessor_error)
22800+ENDPROC(coprocessor_error)
22801
22802 ENTRY(simd_coprocessor_error)
22803 RING0_INT_FRAME
22804@@ -821,7 +1061,7 @@ ENTRY(simd_coprocessor_error)
22805 .section .altinstructions,"a"
22806 altinstruction_entry 661b, 663f, X86_FEATURE_XMM, 662b-661b, 664f-663f
22807 .previous
22808-.section .altinstr_replacement,"ax"
22809+.section .altinstr_replacement,"a"
22810 663: pushl $do_simd_coprocessor_error
22811 664:
22812 .previous
22813@@ -830,7 +1070,7 @@ ENTRY(simd_coprocessor_error)
22814 #endif
22815 jmp error_code
22816 CFI_ENDPROC
22817-END(simd_coprocessor_error)
22818+ENDPROC(simd_coprocessor_error)
22819
22820 ENTRY(device_not_available)
22821 RING0_INT_FRAME
22822@@ -839,18 +1079,18 @@ ENTRY(device_not_available)
22823 pushl_cfi $do_device_not_available
22824 jmp error_code
22825 CFI_ENDPROC
22826-END(device_not_available)
22827+ENDPROC(device_not_available)
22828
22829 #ifdef CONFIG_PARAVIRT
22830 ENTRY(native_iret)
22831 iret
22832 _ASM_EXTABLE(native_iret, iret_exc)
22833-END(native_iret)
22834+ENDPROC(native_iret)
22835
22836 ENTRY(native_irq_enable_sysexit)
22837 sti
22838 sysexit
22839-END(native_irq_enable_sysexit)
22840+ENDPROC(native_irq_enable_sysexit)
22841 #endif
22842
22843 ENTRY(overflow)
22844@@ -860,7 +1100,7 @@ ENTRY(overflow)
22845 pushl_cfi $do_overflow
22846 jmp error_code
22847 CFI_ENDPROC
22848-END(overflow)
22849+ENDPROC(overflow)
22850
22851 ENTRY(bounds)
22852 RING0_INT_FRAME
22853@@ -869,7 +1109,7 @@ ENTRY(bounds)
22854 pushl_cfi $do_bounds
22855 jmp error_code
22856 CFI_ENDPROC
22857-END(bounds)
22858+ENDPROC(bounds)
22859
22860 ENTRY(invalid_op)
22861 RING0_INT_FRAME
22862@@ -878,7 +1118,7 @@ ENTRY(invalid_op)
22863 pushl_cfi $do_invalid_op
22864 jmp error_code
22865 CFI_ENDPROC
22866-END(invalid_op)
22867+ENDPROC(invalid_op)
22868
22869 ENTRY(coprocessor_segment_overrun)
22870 RING0_INT_FRAME
22871@@ -887,7 +1127,7 @@ ENTRY(coprocessor_segment_overrun)
22872 pushl_cfi $do_coprocessor_segment_overrun
22873 jmp error_code
22874 CFI_ENDPROC
22875-END(coprocessor_segment_overrun)
22876+ENDPROC(coprocessor_segment_overrun)
22877
22878 ENTRY(invalid_TSS)
22879 RING0_EC_FRAME
22880@@ -895,7 +1135,7 @@ ENTRY(invalid_TSS)
22881 pushl_cfi $do_invalid_TSS
22882 jmp error_code
22883 CFI_ENDPROC
22884-END(invalid_TSS)
22885+ENDPROC(invalid_TSS)
22886
22887 ENTRY(segment_not_present)
22888 RING0_EC_FRAME
22889@@ -903,7 +1143,7 @@ ENTRY(segment_not_present)
22890 pushl_cfi $do_segment_not_present
22891 jmp error_code
22892 CFI_ENDPROC
22893-END(segment_not_present)
22894+ENDPROC(segment_not_present)
22895
22896 ENTRY(stack_segment)
22897 RING0_EC_FRAME
22898@@ -911,7 +1151,7 @@ ENTRY(stack_segment)
22899 pushl_cfi $do_stack_segment
22900 jmp error_code
22901 CFI_ENDPROC
22902-END(stack_segment)
22903+ENDPROC(stack_segment)
22904
22905 ENTRY(alignment_check)
22906 RING0_EC_FRAME
22907@@ -919,7 +1159,7 @@ ENTRY(alignment_check)
22908 pushl_cfi $do_alignment_check
22909 jmp error_code
22910 CFI_ENDPROC
22911-END(alignment_check)
22912+ENDPROC(alignment_check)
22913
22914 ENTRY(divide_error)
22915 RING0_INT_FRAME
22916@@ -928,7 +1168,7 @@ ENTRY(divide_error)
22917 pushl_cfi $do_divide_error
22918 jmp error_code
22919 CFI_ENDPROC
22920-END(divide_error)
22921+ENDPROC(divide_error)
22922
22923 #ifdef CONFIG_X86_MCE
22924 ENTRY(machine_check)
22925@@ -938,7 +1178,7 @@ ENTRY(machine_check)
22926 pushl_cfi machine_check_vector
22927 jmp error_code
22928 CFI_ENDPROC
22929-END(machine_check)
22930+ENDPROC(machine_check)
22931 #endif
22932
22933 ENTRY(spurious_interrupt_bug)
22934@@ -948,7 +1188,7 @@ ENTRY(spurious_interrupt_bug)
22935 pushl_cfi $do_spurious_interrupt_bug
22936 jmp error_code
22937 CFI_ENDPROC
22938-END(spurious_interrupt_bug)
22939+ENDPROC(spurious_interrupt_bug)
22940
22941 #ifdef CONFIG_XEN
22942 /* Xen doesn't set %esp to be precisely what the normal sysenter
22943@@ -1057,7 +1297,7 @@ BUILD_INTERRUPT3(hyperv_callback_vector, HYPERVISOR_CALLBACK_VECTOR,
22944
22945 ENTRY(mcount)
22946 ret
22947-END(mcount)
22948+ENDPROC(mcount)
22949
22950 ENTRY(ftrace_caller)
22951 pushl %eax
22952@@ -1087,7 +1327,7 @@ ftrace_graph_call:
22953 .globl ftrace_stub
22954 ftrace_stub:
22955 ret
22956-END(ftrace_caller)
22957+ENDPROC(ftrace_caller)
22958
22959 ENTRY(ftrace_regs_caller)
22960 pushf /* push flags before compare (in cs location) */
22961@@ -1185,7 +1425,7 @@ trace:
22962 popl %ecx
22963 popl %eax
22964 jmp ftrace_stub
22965-END(mcount)
22966+ENDPROC(mcount)
22967 #endif /* CONFIG_DYNAMIC_FTRACE */
22968 #endif /* CONFIG_FUNCTION_TRACER */
22969
22970@@ -1203,7 +1443,7 @@ ENTRY(ftrace_graph_caller)
22971 popl %ecx
22972 popl %eax
22973 ret
22974-END(ftrace_graph_caller)
22975+ENDPROC(ftrace_graph_caller)
22976
22977 .globl return_to_handler
22978 return_to_handler:
22979@@ -1264,15 +1504,18 @@ error_code:
22980 movl $-1, PT_ORIG_EAX(%esp) # no syscall to restart
22981 REG_TO_PTGS %ecx
22982 SET_KERNEL_GS %ecx
22983- movl $(__USER_DS), %ecx
22984+ movl $(__KERNEL_DS), %ecx
22985 movl %ecx, %ds
22986 movl %ecx, %es
22987+
22988+ pax_enter_kernel
22989+
22990 TRACE_IRQS_OFF
22991 movl %esp,%eax # pt_regs pointer
22992 call *%edi
22993 jmp ret_from_exception
22994 CFI_ENDPROC
22995-END(page_fault)
22996+ENDPROC(page_fault)
22997
22998 /*
22999 * Debug traps and NMI can happen at the one SYSENTER instruction
23000@@ -1315,7 +1558,7 @@ debug_stack_correct:
23001 call do_debug
23002 jmp ret_from_exception
23003 CFI_ENDPROC
23004-END(debug)
23005+ENDPROC(debug)
23006
23007 /*
23008 * NMI is doubly nasty. It can happen _while_ we're handling
23009@@ -1355,6 +1598,9 @@ nmi_stack_correct:
23010 xorl %edx,%edx # zero error code
23011 movl %esp,%eax # pt_regs pointer
23012 call do_nmi
23013+
23014+ pax_exit_kernel
23015+
23016 jmp restore_all_notrace
23017 CFI_ENDPROC
23018
23019@@ -1392,13 +1638,16 @@ nmi_espfix_stack:
23020 FIXUP_ESPFIX_STACK # %eax == %esp
23021 xorl %edx,%edx # zero error code
23022 call do_nmi
23023+
23024+ pax_exit_kernel
23025+
23026 RESTORE_REGS
23027 lss 12+4(%esp), %esp # back to espfix stack
23028 CFI_ADJUST_CFA_OFFSET -24
23029 jmp irq_return
23030 #endif
23031 CFI_ENDPROC
23032-END(nmi)
23033+ENDPROC(nmi)
23034
23035 ENTRY(int3)
23036 RING0_INT_FRAME
23037@@ -1411,14 +1660,14 @@ ENTRY(int3)
23038 call do_int3
23039 jmp ret_from_exception
23040 CFI_ENDPROC
23041-END(int3)
23042+ENDPROC(int3)
23043
23044 ENTRY(general_protection)
23045 RING0_EC_FRAME
23046 pushl_cfi $do_general_protection
23047 jmp error_code
23048 CFI_ENDPROC
23049-END(general_protection)
23050+ENDPROC(general_protection)
23051
23052 #ifdef CONFIG_KVM_GUEST
23053 ENTRY(async_page_fault)
23054@@ -1427,6 +1676,6 @@ ENTRY(async_page_fault)
23055 pushl_cfi $do_async_page_fault
23056 jmp error_code
23057 CFI_ENDPROC
23058-END(async_page_fault)
23059+ENDPROC(async_page_fault)
23060 #endif
23061
23062diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S
23063index f0095a7..7ece039 100644
23064--- a/arch/x86/kernel/entry_64.S
23065+++ b/arch/x86/kernel/entry_64.S
23066@@ -59,6 +59,8 @@
23067 #include <asm/smap.h>
23068 #include <asm/pgtable_types.h>
23069 #include <linux/err.h>
23070+#include <asm/pgtable.h>
23071+#include <asm/alternative-asm.h>
23072
23073 /* Avoid __ASSEMBLER__'ifying <linux/audit.h> just for this. */
23074 #include <linux/elf-em.h>
23075@@ -81,6 +83,431 @@ ENTRY(native_usergs_sysret64)
23076 ENDPROC(native_usergs_sysret64)
23077 #endif /* CONFIG_PARAVIRT */
23078
23079+ .macro ljmpq sel, off
23080+#if defined(CONFIG_MPSC) || defined(CONFIG_MCORE2) || defined (CONFIG_MATOM)
23081+ .byte 0x48; ljmp *1234f(%rip)
23082+ .pushsection .rodata
23083+ .align 16
23084+ 1234: .quad \off; .word \sel
23085+ .popsection
23086+#else
23087+ pushq $\sel
23088+ pushq $\off
23089+ lretq
23090+#endif
23091+ .endm
23092+
23093+ .macro pax_enter_kernel
23094+ pax_set_fptr_mask
23095+#if defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
23096+ call pax_enter_kernel
23097+#endif
23098+ .endm
23099+
23100+ .macro pax_exit_kernel
23101+#if defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
23102+ call pax_exit_kernel
23103+#endif
23104+
23105+ .endm
23106+
23107+#if defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
23108+ENTRY(pax_enter_kernel)
23109+ pushq %rdi
23110+
23111+#ifdef CONFIG_PARAVIRT
23112+ PV_SAVE_REGS(CLBR_RDI)
23113+#endif
23114+
23115+#ifdef CONFIG_PAX_KERNEXEC
23116+ GET_CR0_INTO_RDI
23117+ bts $X86_CR0_WP_BIT,%rdi
23118+ jnc 3f
23119+ mov %cs,%edi
23120+ cmp $__KERNEL_CS,%edi
23121+ jnz 2f
23122+1:
23123+#endif
23124+
23125+#ifdef CONFIG_PAX_MEMORY_UDEREF
23126+ 661: jmp 111f
23127+ .pushsection .altinstr_replacement, "a"
23128+ 662: ASM_NOP2
23129+ .popsection
23130+ .pushsection .altinstructions, "a"
23131+ altinstruction_entry 661b, 662b, X86_FEATURE_PCID, 2, 2
23132+ .popsection
23133+ GET_CR3_INTO_RDI
23134+ cmp $0,%dil
23135+ jnz 112f
23136+ mov $__KERNEL_DS,%edi
23137+ mov %edi,%ss
23138+ jmp 111f
23139+112: cmp $1,%dil
23140+ jz 113f
23141+ ud2
23142+113: sub $4097,%rdi
23143+ bts $63,%rdi
23144+ SET_RDI_INTO_CR3
23145+ mov $__UDEREF_KERNEL_DS,%edi
23146+ mov %edi,%ss
23147+111:
23148+#endif
23149+
23150+#ifdef CONFIG_PARAVIRT
23151+ PV_RESTORE_REGS(CLBR_RDI)
23152+#endif
23153+
23154+ popq %rdi
23155+ pax_force_retaddr
23156+ retq
23157+
23158+#ifdef CONFIG_PAX_KERNEXEC
23159+2: ljmpq __KERNEL_CS,1b
23160+3: ljmpq __KERNEXEC_KERNEL_CS,4f
23161+4: SET_RDI_INTO_CR0
23162+ jmp 1b
23163+#endif
23164+ENDPROC(pax_enter_kernel)
23165+
23166+ENTRY(pax_exit_kernel)
23167+ pushq %rdi
23168+
23169+#ifdef CONFIG_PARAVIRT
23170+ PV_SAVE_REGS(CLBR_RDI)
23171+#endif
23172+
23173+#ifdef CONFIG_PAX_KERNEXEC
23174+ mov %cs,%rdi
23175+ cmp $__KERNEXEC_KERNEL_CS,%edi
23176+ jz 2f
23177+ GET_CR0_INTO_RDI
23178+ bts $X86_CR0_WP_BIT,%rdi
23179+ jnc 4f
23180+1:
23181+#endif
23182+
23183+#ifdef CONFIG_PAX_MEMORY_UDEREF
23184+ 661: jmp 111f
23185+ .pushsection .altinstr_replacement, "a"
23186+ 662: ASM_NOP2
23187+ .popsection
23188+ .pushsection .altinstructions, "a"
23189+ altinstruction_entry 661b, 662b, X86_FEATURE_PCID, 2, 2
23190+ .popsection
23191+ mov %ss,%edi
23192+ cmp $__UDEREF_KERNEL_DS,%edi
23193+ jnz 111f
23194+ GET_CR3_INTO_RDI
23195+ cmp $0,%dil
23196+ jz 112f
23197+ ud2
23198+112: add $4097,%rdi
23199+ bts $63,%rdi
23200+ SET_RDI_INTO_CR3
23201+ mov $__KERNEL_DS,%edi
23202+ mov %edi,%ss
23203+111:
23204+#endif
23205+
23206+#ifdef CONFIG_PARAVIRT
23207+ PV_RESTORE_REGS(CLBR_RDI);
23208+#endif
23209+
23210+ popq %rdi
23211+ pax_force_retaddr
23212+ retq
23213+
23214+#ifdef CONFIG_PAX_KERNEXEC
23215+2: GET_CR0_INTO_RDI
23216+ btr $X86_CR0_WP_BIT,%rdi
23217+ jnc 4f
23218+ ljmpq __KERNEL_CS,3f
23219+3: SET_RDI_INTO_CR0
23220+ jmp 1b
23221+4: ud2
23222+ jmp 4b
23223+#endif
23224+ENDPROC(pax_exit_kernel)
23225+#endif
23226+
23227+ .macro pax_enter_kernel_user
23228+ pax_set_fptr_mask
23229+#ifdef CONFIG_PAX_MEMORY_UDEREF
23230+ call pax_enter_kernel_user
23231+#endif
23232+ .endm
23233+
23234+ .macro pax_exit_kernel_user
23235+#ifdef CONFIG_PAX_MEMORY_UDEREF
23236+ call pax_exit_kernel_user
23237+#endif
23238+#ifdef CONFIG_PAX_RANDKSTACK
23239+ pushq %rax
23240+ pushq %r11
23241+ call pax_randomize_kstack
23242+ popq %r11
23243+ popq %rax
23244+#endif
23245+ .endm
23246+
23247+#ifdef CONFIG_PAX_MEMORY_UDEREF
23248+ENTRY(pax_enter_kernel_user)
23249+ pushq %rdi
23250+ pushq %rbx
23251+
23252+#ifdef CONFIG_PARAVIRT
23253+ PV_SAVE_REGS(CLBR_RDI)
23254+#endif
23255+
23256+ 661: jmp 111f
23257+ .pushsection .altinstr_replacement, "a"
23258+ 662: ASM_NOP2
23259+ .popsection
23260+ .pushsection .altinstructions, "a"
23261+ altinstruction_entry 661b, 662b, X86_FEATURE_PCID, 2, 2
23262+ .popsection
23263+ GET_CR3_INTO_RDI
23264+ cmp $1,%dil
23265+ jnz 4f
23266+ sub $4097,%rdi
23267+ bts $63,%rdi
23268+ SET_RDI_INTO_CR3
23269+ jmp 3f
23270+111:
23271+
23272+ GET_CR3_INTO_RDI
23273+ mov %rdi,%rbx
23274+ add $__START_KERNEL_map,%rbx
23275+ sub phys_base(%rip),%rbx
23276+
23277+#ifdef CONFIG_PARAVIRT
23278+ cmpl $0, pv_info+PARAVIRT_enabled
23279+ jz 1f
23280+ pushq %rdi
23281+ i = 0
23282+ .rept USER_PGD_PTRS
23283+ mov i*8(%rbx),%rsi
23284+ mov $0,%sil
23285+ lea i*8(%rbx),%rdi
23286+ call PARA_INDIRECT(pv_mmu_ops+PV_MMU_set_pgd_batched)
23287+ i = i + 1
23288+ .endr
23289+ popq %rdi
23290+ jmp 2f
23291+1:
23292+#endif
23293+
23294+ i = 0
23295+ .rept USER_PGD_PTRS
23296+ movb $0,i*8(%rbx)
23297+ i = i + 1
23298+ .endr
23299+
23300+2: SET_RDI_INTO_CR3
23301+
23302+#ifdef CONFIG_PAX_KERNEXEC
23303+ GET_CR0_INTO_RDI
23304+ bts $X86_CR0_WP_BIT,%rdi
23305+ SET_RDI_INTO_CR0
23306+#endif
23307+
23308+3:
23309+
23310+#ifdef CONFIG_PARAVIRT
23311+ PV_RESTORE_REGS(CLBR_RDI)
23312+#endif
23313+
23314+ popq %rbx
23315+ popq %rdi
23316+ pax_force_retaddr
23317+ retq
23318+4: ud2
23319+ENDPROC(pax_enter_kernel_user)
23320+
23321+ENTRY(pax_exit_kernel_user)
23322+ pushq %rdi
23323+ pushq %rbx
23324+
23325+#ifdef CONFIG_PARAVIRT
23326+ PV_SAVE_REGS(CLBR_RDI)
23327+#endif
23328+
23329+ GET_CR3_INTO_RDI
23330+ 661: jmp 1f
23331+ .pushsection .altinstr_replacement, "a"
23332+ 662: ASM_NOP2
23333+ .popsection
23334+ .pushsection .altinstructions, "a"
23335+ altinstruction_entry 661b, 662b, X86_FEATURE_PCID, 2, 2
23336+ .popsection
23337+ cmp $0,%dil
23338+ jnz 3f
23339+ add $4097,%rdi
23340+ bts $63,%rdi
23341+ SET_RDI_INTO_CR3
23342+ jmp 2f
23343+1:
23344+
23345+ mov %rdi,%rbx
23346+
23347+#ifdef CONFIG_PAX_KERNEXEC
23348+ GET_CR0_INTO_RDI
23349+ btr $X86_CR0_WP_BIT,%rdi
23350+ jnc 3f
23351+ SET_RDI_INTO_CR0
23352+#endif
23353+
23354+ add $__START_KERNEL_map,%rbx
23355+ sub phys_base(%rip),%rbx
23356+
23357+#ifdef CONFIG_PARAVIRT
23358+ cmpl $0, pv_info+PARAVIRT_enabled
23359+ jz 1f
23360+ i = 0
23361+ .rept USER_PGD_PTRS
23362+ mov i*8(%rbx),%rsi
23363+ mov $0x67,%sil
23364+ lea i*8(%rbx),%rdi
23365+ call PARA_INDIRECT(pv_mmu_ops+PV_MMU_set_pgd_batched)
23366+ i = i + 1
23367+ .endr
23368+ jmp 2f
23369+1:
23370+#endif
23371+
23372+ i = 0
23373+ .rept USER_PGD_PTRS
23374+ movb $0x67,i*8(%rbx)
23375+ i = i + 1
23376+ .endr
23377+2:
23378+
23379+#ifdef CONFIG_PARAVIRT
23380+ PV_RESTORE_REGS(CLBR_RDI)
23381+#endif
23382+
23383+ popq %rbx
23384+ popq %rdi
23385+ pax_force_retaddr
23386+ retq
23387+3: ud2
23388+ENDPROC(pax_exit_kernel_user)
23389+#endif
23390+
23391+ .macro pax_enter_kernel_nmi
23392+ pax_set_fptr_mask
23393+
23394+#ifdef CONFIG_PAX_KERNEXEC
23395+ GET_CR0_INTO_RDI
23396+ bts $X86_CR0_WP_BIT,%rdi
23397+ jc 110f
23398+ SET_RDI_INTO_CR0
23399+ or $2,%ebx
23400+110:
23401+#endif
23402+
23403+#ifdef CONFIG_PAX_MEMORY_UDEREF
23404+ 661: jmp 111f
23405+ .pushsection .altinstr_replacement, "a"
23406+ 662: ASM_NOP2
23407+ .popsection
23408+ .pushsection .altinstructions, "a"
23409+ altinstruction_entry 661b, 662b, X86_FEATURE_PCID, 2, 2
23410+ .popsection
23411+ GET_CR3_INTO_RDI
23412+ cmp $0,%dil
23413+ jz 111f
23414+ sub $4097,%rdi
23415+ or $4,%ebx
23416+ bts $63,%rdi
23417+ SET_RDI_INTO_CR3
23418+ mov $__UDEREF_KERNEL_DS,%edi
23419+ mov %edi,%ss
23420+111:
23421+#endif
23422+ .endm
23423+
23424+ .macro pax_exit_kernel_nmi
23425+#ifdef CONFIG_PAX_KERNEXEC
23426+ btr $1,%ebx
23427+ jnc 110f
23428+ GET_CR0_INTO_RDI
23429+ btr $X86_CR0_WP_BIT,%rdi
23430+ SET_RDI_INTO_CR0
23431+110:
23432+#endif
23433+
23434+#ifdef CONFIG_PAX_MEMORY_UDEREF
23435+ btr $2,%ebx
23436+ jnc 111f
23437+ GET_CR3_INTO_RDI
23438+ add $4097,%rdi
23439+ bts $63,%rdi
23440+ SET_RDI_INTO_CR3
23441+ mov $__KERNEL_DS,%edi
23442+ mov %edi,%ss
23443+111:
23444+#endif
23445+ .endm
23446+
23447+ .macro pax_erase_kstack
23448+#ifdef CONFIG_PAX_MEMORY_STACKLEAK
23449+ call pax_erase_kstack
23450+#endif
23451+ .endm
23452+
23453+#ifdef CONFIG_PAX_MEMORY_STACKLEAK
23454+ENTRY(pax_erase_kstack)
23455+ pushq %rdi
23456+ pushq %rcx
23457+ pushq %rax
23458+ pushq %r11
23459+
23460+ GET_THREAD_INFO(%r11)
23461+ mov TI_lowest_stack(%r11), %rdi
23462+ mov $-0xBEEF, %rax
23463+ std
23464+
23465+1: mov %edi, %ecx
23466+ and $THREAD_SIZE_asm - 1, %ecx
23467+ shr $3, %ecx
23468+ repne scasq
23469+ jecxz 2f
23470+
23471+ cmp $2*8, %ecx
23472+ jc 2f
23473+
23474+ mov $2*8, %ecx
23475+ repe scasq
23476+ jecxz 2f
23477+ jne 1b
23478+
23479+2: cld
23480+ or $2*8, %rdi
23481+ mov %esp, %ecx
23482+ sub %edi, %ecx
23483+
23484+ cmp $THREAD_SIZE_asm, %rcx
23485+ jb 3f
23486+ ud2
23487+3:
23488+
23489+ shr $3, %ecx
23490+ rep stosq
23491+
23492+ mov TI_task_thread_sp0(%r11), %rdi
23493+ sub $256, %rdi
23494+ mov %rdi, TI_lowest_stack(%r11)
23495+
23496+ popq %r11
23497+ popq %rax
23498+ popq %rcx
23499+ popq %rdi
23500+ pax_force_retaddr
23501+ ret
23502+ENDPROC(pax_erase_kstack)
23503+#endif
23504
23505 .macro TRACE_IRQS_IRETQ offset=ARGOFFSET
23506 #ifdef CONFIG_TRACE_IRQFLAGS
23507@@ -117,7 +544,7 @@ ENDPROC(native_usergs_sysret64)
23508 .endm
23509
23510 .macro TRACE_IRQS_IRETQ_DEBUG offset=ARGOFFSET
23511- bt $9,EFLAGS-\offset(%rsp) /* interrupts off? */
23512+ bt $X86_EFLAGS_IF_BIT,EFLAGS-\offset(%rsp) /* interrupts off? */
23513 jnc 1f
23514 TRACE_IRQS_ON_DEBUG
23515 1:
23516@@ -243,9 +670,52 @@ ENTRY(save_paranoid)
23517 js 1f /* negative -> in kernel */
23518 SWAPGS
23519 xorl %ebx,%ebx
23520-1: ret
23521+1:
23522+#ifdef CONFIG_PAX_MEMORY_UDEREF
23523+ testb $3, CS+8(%rsp)
23524+ jnz 1f
23525+ pax_enter_kernel
23526+ jmp 2f
23527+1: pax_enter_kernel_user
23528+2:
23529+#else
23530+ pax_enter_kernel
23531+#endif
23532+ pax_force_retaddr
23533+ ret
23534 CFI_ENDPROC
23535-END(save_paranoid)
23536+ENDPROC(save_paranoid)
23537+
23538+ENTRY(save_paranoid_nmi)
23539+ XCPT_FRAME 1 RDI+8
23540+ cld
23541+ movq_cfi rdi, RDI+8
23542+ movq_cfi rsi, RSI+8
23543+ movq_cfi rdx, RDX+8
23544+ movq_cfi rcx, RCX+8
23545+ movq_cfi rax, RAX+8
23546+ movq_cfi r8, R8+8
23547+ movq_cfi r9, R9+8
23548+ movq_cfi r10, R10+8
23549+ movq_cfi r11, R11+8
23550+ movq_cfi rbx, RBX+8
23551+ movq_cfi rbp, RBP+8
23552+ movq_cfi r12, R12+8
23553+ movq_cfi r13, R13+8
23554+ movq_cfi r14, R14+8
23555+ movq_cfi r15, R15+8
23556+ movl $1,%ebx
23557+ movl $MSR_GS_BASE,%ecx
23558+ rdmsr
23559+ testl %edx,%edx
23560+ js 1f /* negative -> in kernel */
23561+ SWAPGS
23562+ xorl %ebx,%ebx
23563+1: pax_enter_kernel_nmi
23564+ pax_force_retaddr
23565+ ret
23566+ CFI_ENDPROC
23567+ENDPROC(save_paranoid_nmi)
23568
23569 /*
23570 * A newly forked process directly context switches into this address.
23571@@ -266,7 +736,7 @@ ENTRY(ret_from_fork)
23572
23573 RESTORE_REST
23574
23575- testl $3, CS-ARGOFFSET(%rsp) # from kernel_thread?
23576+ testb $3, CS-ARGOFFSET(%rsp) # from kernel_thread?
23577 jz 1f
23578
23579 /*
23580@@ -279,15 +749,13 @@ ENTRY(ret_from_fork)
23581 jmp int_ret_from_sys_call
23582
23583 1:
23584- subq $REST_SKIP, %rsp # leave space for volatiles
23585- CFI_ADJUST_CFA_OFFSET REST_SKIP
23586 movq %rbp, %rdi
23587 call *%rbx
23588 movl $0, RAX(%rsp)
23589 RESTORE_REST
23590 jmp int_ret_from_sys_call
23591 CFI_ENDPROC
23592-END(ret_from_fork)
23593+ENDPROC(ret_from_fork)
23594
23595 /*
23596 * System call entry. Up to 6 arguments in registers are supported.
23597@@ -324,7 +792,7 @@ END(ret_from_fork)
23598 ENTRY(system_call)
23599 CFI_STARTPROC simple
23600 CFI_SIGNAL_FRAME
23601- CFI_DEF_CFA rsp,KERNEL_STACK_OFFSET
23602+ CFI_DEF_CFA rsp,0
23603 CFI_REGISTER rip,rcx
23604 /*CFI_REGISTER rflags,r11*/
23605 SWAPGS_UNSAFE_STACK
23606@@ -337,16 +805,23 @@ GLOBAL(system_call_after_swapgs)
23607
23608 movq %rsp,PER_CPU_VAR(old_rsp)
23609 movq PER_CPU_VAR(kernel_stack),%rsp
23610+ SAVE_ARGS 8*6, 0, rax_enosys=1
23611+ pax_enter_kernel_user
23612+
23613+#ifdef CONFIG_PAX_RANDKSTACK
23614+ pax_erase_kstack
23615+#endif
23616+
23617 /*
23618 * No need to follow this irqs off/on section - it's straight
23619 * and short:
23620 */
23621 ENABLE_INTERRUPTS(CLBR_NONE)
23622- SAVE_ARGS 8, 0, rax_enosys=1
23623 movq_cfi rax,(ORIG_RAX-ARGOFFSET)
23624 movq %rcx,RIP-ARGOFFSET(%rsp)
23625 CFI_REL_OFFSET rip,RIP-ARGOFFSET
23626- testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
23627+ GET_THREAD_INFO(%rcx)
23628+ testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags(%rcx)
23629 jnz tracesys
23630 system_call_fastpath:
23631 #if __SYSCALL_MASK == ~0
23632@@ -376,10 +851,13 @@ ret_from_sys_call:
23633 * flags (TIF_NOTIFY_RESUME, TIF_USER_RETURN_NOTIFY, etc) set is
23634 * very bad.
23635 */
23636- testl $_TIF_ALLWORK_MASK,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
23637+ GET_THREAD_INFO(%rcx)
23638+ testl $_TIF_ALLWORK_MASK,TI_flags(%rcx)
23639 jnz int_ret_from_sys_call_fixup /* Go the the slow path */
23640
23641 CFI_REMEMBER_STATE
23642+ pax_exit_kernel_user
23643+ pax_erase_kstack
23644 /*
23645 * sysretq will re-enable interrupts:
23646 */
23647@@ -399,12 +877,15 @@ int_ret_from_sys_call_fixup:
23648
23649 /* Do syscall tracing */
23650 tracesys:
23651- leaq -REST_SKIP(%rsp), %rdi
23652+ movq %rsp, %rdi
23653 movq $AUDIT_ARCH_X86_64, %rsi
23654 call syscall_trace_enter_phase1
23655 test %rax, %rax
23656 jnz tracesys_phase2 /* if needed, run the slow path */
23657- LOAD_ARGS 0 /* else restore clobbered regs */
23658+
23659+ pax_erase_kstack
23660+
23661+ LOAD_ARGS /* else restore clobbered regs */
23662 jmp system_call_fastpath /* and return to the fast path */
23663
23664 tracesys_phase2:
23665@@ -415,12 +896,14 @@ tracesys_phase2:
23666 movq %rax,%rdx
23667 call syscall_trace_enter_phase2
23668
23669+ pax_erase_kstack
23670+
23671 /*
23672 * Reload arg registers from stack in case ptrace changed them.
23673 * We don't reload %rax because syscall_trace_entry_phase2() returned
23674 * the value it wants us to use in the table lookup.
23675 */
23676- LOAD_ARGS ARGOFFSET, 1
23677+ LOAD_ARGS 1
23678 RESTORE_REST
23679 #if __SYSCALL_MASK == ~0
23680 cmpq $__NR_syscall_max,%rax
23681@@ -451,7 +934,9 @@ GLOBAL(int_with_check)
23682 andl %edi,%edx
23683 jnz int_careful
23684 andl $~TS_COMPAT,TI_status(%rcx)
23685- jmp retint_swapgs
23686+ pax_exit_kernel_user
23687+ pax_erase_kstack
23688+ jmp retint_swapgs_pax
23689
23690 /* Either reschedule or signal or syscall exit tracking needed. */
23691 /* First do a reschedule test. */
23692@@ -497,7 +982,7 @@ int_restore_rest:
23693 TRACE_IRQS_OFF
23694 jmp int_with_check
23695 CFI_ENDPROC
23696-END(system_call)
23697+ENDPROC(system_call)
23698
23699 .macro FORK_LIKE func
23700 ENTRY(stub_\func)
23701@@ -510,9 +995,10 @@ ENTRY(stub_\func)
23702 DEFAULT_FRAME 0 8 /* offset 8: return address */
23703 call sys_\func
23704 RESTORE_TOP_OF_STACK %r11, 8
23705- ret $REST_SKIP /* pop extended registers */
23706+ pax_force_retaddr
23707+ ret
23708 CFI_ENDPROC
23709-END(stub_\func)
23710+ENDPROC(stub_\func)
23711 .endm
23712
23713 .macro FIXED_FRAME label,func
23714@@ -522,9 +1008,10 @@ ENTRY(\label)
23715 FIXUP_TOP_OF_STACK %r11, 8-ARGOFFSET
23716 call \func
23717 RESTORE_TOP_OF_STACK %r11, 8-ARGOFFSET
23718+ pax_force_retaddr
23719 ret
23720 CFI_ENDPROC
23721-END(\label)
23722+ENDPROC(\label)
23723 .endm
23724
23725 FORK_LIKE clone
23726@@ -543,7 +1030,7 @@ ENTRY(stub_execve)
23727 RESTORE_REST
23728 jmp int_ret_from_sys_call
23729 CFI_ENDPROC
23730-END(stub_execve)
23731+ENDPROC(stub_execve)
23732
23733 ENTRY(stub_execveat)
23734 CFI_STARTPROC
23735@@ -557,7 +1044,7 @@ ENTRY(stub_execveat)
23736 RESTORE_REST
23737 jmp int_ret_from_sys_call
23738 CFI_ENDPROC
23739-END(stub_execveat)
23740+ENDPROC(stub_execveat)
23741
23742 /*
23743 * sigreturn is special because it needs to restore all registers on return.
23744@@ -574,7 +1061,7 @@ ENTRY(stub_rt_sigreturn)
23745 RESTORE_REST
23746 jmp int_ret_from_sys_call
23747 CFI_ENDPROC
23748-END(stub_rt_sigreturn)
23749+ENDPROC(stub_rt_sigreturn)
23750
23751 #ifdef CONFIG_X86_X32_ABI
23752 ENTRY(stub_x32_rt_sigreturn)
23753@@ -588,7 +1075,7 @@ ENTRY(stub_x32_rt_sigreturn)
23754 RESTORE_REST
23755 jmp int_ret_from_sys_call
23756 CFI_ENDPROC
23757-END(stub_x32_rt_sigreturn)
23758+ENDPROC(stub_x32_rt_sigreturn)
23759
23760 ENTRY(stub_x32_execve)
23761 CFI_STARTPROC
23762@@ -602,7 +1089,7 @@ ENTRY(stub_x32_execve)
23763 RESTORE_REST
23764 jmp int_ret_from_sys_call
23765 CFI_ENDPROC
23766-END(stub_x32_execve)
23767+ENDPROC(stub_x32_execve)
23768
23769 ENTRY(stub_x32_execveat)
23770 CFI_STARTPROC
23771@@ -616,7 +1103,7 @@ ENTRY(stub_x32_execveat)
23772 RESTORE_REST
23773 jmp int_ret_from_sys_call
23774 CFI_ENDPROC
23775-END(stub_x32_execveat)
23776+ENDPROC(stub_x32_execveat)
23777
23778 #endif
23779
23780@@ -653,7 +1140,7 @@ vector=vector+1
23781 2: jmp common_interrupt
23782 .endr
23783 CFI_ENDPROC
23784-END(irq_entries_start)
23785+ENDPROC(irq_entries_start)
23786
23787 .previous
23788 END(interrupt)
23789@@ -670,28 +1157,29 @@ END(interrupt)
23790 /* 0(%rsp): ~(interrupt number) */
23791 .macro interrupt func
23792 /* reserve pt_regs for scratch regs and rbp */
23793- subq $ORIG_RAX-RBP, %rsp
23794- CFI_ADJUST_CFA_OFFSET ORIG_RAX-RBP
23795+ subq $ORIG_RAX, %rsp
23796+ CFI_ADJUST_CFA_OFFSET ORIG_RAX
23797 cld
23798- /* start from rbp in pt_regs and jump over */
23799- movq_cfi rdi, (RDI-RBP)
23800- movq_cfi rsi, (RSI-RBP)
23801- movq_cfi rdx, (RDX-RBP)
23802- movq_cfi rcx, (RCX-RBP)
23803- movq_cfi rax, (RAX-RBP)
23804- movq_cfi r8, (R8-RBP)
23805- movq_cfi r9, (R9-RBP)
23806- movq_cfi r10, (R10-RBP)
23807- movq_cfi r11, (R11-RBP)
23808+ /* start from r15 in pt_regs and jump over */
23809+ movq_cfi rdi, RDI
23810+ movq_cfi rsi, RSI
23811+ movq_cfi rdx, RDX
23812+ movq_cfi rcx, RCX
23813+ movq_cfi rax, RAX
23814+ movq_cfi r8, R8
23815+ movq_cfi r9, R9
23816+ movq_cfi r10, R10
23817+ movq_cfi r11, R11
23818+ movq_cfi r12, R12
23819
23820 /* Save rbp so that we can unwind from get_irq_regs() */
23821- movq_cfi rbp, 0
23822+ movq_cfi rbp, RBP
23823
23824 /* Save previous stack value */
23825 movq %rsp, %rsi
23826
23827- leaq -RBP(%rsp),%rdi /* arg1 for handler */
23828- testl $3, CS-RBP(%rsi)
23829+ movq %rsp,%rdi /* arg1 for handler */
23830+ testb $3, CS(%rsi)
23831 je 1f
23832 SWAPGS
23833 /*
23834@@ -711,6 +1199,18 @@ END(interrupt)
23835 0x06 /* DW_OP_deref */, \
23836 0x08 /* DW_OP_const1u */, SS+8-RBP, \
23837 0x22 /* DW_OP_plus */
23838+
23839+#ifdef CONFIG_PAX_MEMORY_UDEREF
23840+ testb $3, CS(%rdi)
23841+ jnz 1f
23842+ pax_enter_kernel
23843+ jmp 2f
23844+1: pax_enter_kernel_user
23845+2:
23846+#else
23847+ pax_enter_kernel
23848+#endif
23849+
23850 /* We entered an interrupt context - irqs are off: */
23851 TRACE_IRQS_OFF
23852
23853@@ -735,14 +1235,14 @@ ret_from_intr:
23854
23855 /* Restore saved previous stack */
23856 popq %rsi
23857- CFI_DEF_CFA rsi,SS+8-RBP /* reg/off reset after def_cfa_expr */
23858- leaq ARGOFFSET-RBP(%rsi), %rsp
23859+ CFI_DEF_CFA rsi,SS+8 /* reg/off reset after def_cfa_expr */
23860+ movq %rsi, %rsp
23861 CFI_DEF_CFA_REGISTER rsp
23862- CFI_ADJUST_CFA_OFFSET RBP-ARGOFFSET
23863+ CFI_ADJUST_CFA_OFFSET -ARGOFFSET
23864
23865 exit_intr:
23866 GET_THREAD_INFO(%rcx)
23867- testl $3,CS-ARGOFFSET(%rsp)
23868+ testb $3,CS-ARGOFFSET(%rsp)
23869 je retint_kernel
23870
23871 /* Interrupt came from user space */
23872@@ -764,14 +1264,16 @@ retint_swapgs: /* return to user-space */
23873 * The iretq could re-enable interrupts:
23874 */
23875 DISABLE_INTERRUPTS(CLBR_ANY)
23876+ pax_exit_kernel_user
23877+retint_swapgs_pax:
23878 TRACE_IRQS_IRETQ
23879
23880 /*
23881 * Try to use SYSRET instead of IRET if we're returning to
23882 * a completely clean 64-bit userspace context.
23883 */
23884- movq (RCX-R11)(%rsp), %rcx
23885- cmpq %rcx,(RIP-R11)(%rsp) /* RCX == RIP */
23886+ movq (RCX-ARGOFFSET)(%rsp), %rcx
23887+ cmpq %rcx,(RIP-ARGOFFSET)(%rsp) /* RCX == RIP */
23888 jne opportunistic_sysret_failed
23889
23890 /*
23891@@ -792,7 +1294,7 @@ retint_swapgs: /* return to user-space */
23892 shr $__VIRTUAL_MASK_SHIFT, %rcx
23893 jnz opportunistic_sysret_failed
23894
23895- cmpq $__USER_CS,(CS-R11)(%rsp) /* CS must match SYSRET */
23896+ cmpq $__USER_CS,(CS-ARGOFFSET)(%rsp) /* CS must match SYSRET */
23897 jne opportunistic_sysret_failed
23898
23899 movq (R11-ARGOFFSET)(%rsp), %r11
23900@@ -838,6 +1340,27 @@ opportunistic_sysret_failed:
23901
23902 retint_restore_args: /* return to kernel space */
23903 DISABLE_INTERRUPTS(CLBR_ANY)
23904+ pax_exit_kernel
23905+
23906+#if defined(CONFIG_EFI) && defined(CONFIG_PAX_KERNEXEC)
23907+ /* This is a quirk to allow IRQs/NMIs/MCEs during early EFI setup,
23908+ * namely calling EFI runtime services with a phys mapping. We're
23909+ * starting off with NOPs and patch in the real instrumentation
23910+ * (BTS/OR) before starting any userland process; even before starting
23911+ * up the APs.
23912+ */
23913+ .pushsection .altinstr_replacement, "a"
23914+ 601: pax_force_retaddr (RIP-ARGOFFSET)
23915+ 602:
23916+ .popsection
23917+ 603: .fill 602b-601b, 1, 0x90
23918+ .pushsection .altinstructions, "a"
23919+ altinstruction_entry 603b, 601b, X86_FEATURE_ALWAYS, 602b-601b, 602b-601b
23920+ .popsection
23921+#else
23922+ pax_force_retaddr (RIP-ARGOFFSET)
23923+#endif
23924+
23925 /*
23926 * The iretq could re-enable interrupts:
23927 */
23928@@ -875,15 +1398,15 @@ native_irq_return_ldt:
23929 SWAPGS
23930 movq PER_CPU_VAR(espfix_waddr),%rdi
23931 movq %rax,(0*8)(%rdi) /* RAX */
23932- movq (2*8)(%rsp),%rax /* RIP */
23933+ movq (2*8 + RIP-RIP)(%rsp),%rax /* RIP */
23934 movq %rax,(1*8)(%rdi)
23935- movq (3*8)(%rsp),%rax /* CS */
23936+ movq (2*8 + CS-RIP)(%rsp),%rax /* CS */
23937 movq %rax,(2*8)(%rdi)
23938- movq (4*8)(%rsp),%rax /* RFLAGS */
23939+ movq (2*8 + EFLAGS-RIP)(%rsp),%rax /* RFLAGS */
23940 movq %rax,(3*8)(%rdi)
23941- movq (6*8)(%rsp),%rax /* SS */
23942+ movq (2*8 + SS-RIP)(%rsp),%rax /* SS */
23943 movq %rax,(5*8)(%rdi)
23944- movq (5*8)(%rsp),%rax /* RSP */
23945+ movq (2*8 + RSP-RIP)(%rsp),%rax /* RSP */
23946 movq %rax,(4*8)(%rdi)
23947 andl $0xffff0000,%eax
23948 popq_cfi %rdi
23949@@ -937,7 +1460,7 @@ ENTRY(retint_kernel)
23950 jmp exit_intr
23951 #endif
23952 CFI_ENDPROC
23953-END(common_interrupt)
23954+ENDPROC(common_interrupt)
23955
23956 /*
23957 * APIC interrupts.
23958@@ -951,7 +1474,7 @@ ENTRY(\sym)
23959 interrupt \do_sym
23960 jmp ret_from_intr
23961 CFI_ENDPROC
23962-END(\sym)
23963+ENDPROC(\sym)
23964 .endm
23965
23966 #ifdef CONFIG_TRACING
23967@@ -1024,7 +1547,7 @@ apicinterrupt IRQ_WORK_VECTOR \
23968 /*
23969 * Exception entry points.
23970 */
23971-#define INIT_TSS_IST(x) PER_CPU_VAR(init_tss) + (TSS_ist + ((x) - 1) * 8)
23972+#define INIT_TSS_IST(x) (TSS_ist + ((x) - 1) * 8)(%r13)
23973
23974 .macro idtentry sym do_sym has_error_code:req paranoid=0 shift_ist=-1
23975 ENTRY(\sym)
23976@@ -1080,6 +1603,12 @@ ENTRY(\sym)
23977 .endif
23978
23979 .if \shift_ist != -1
23980+#ifdef CONFIG_SMP
23981+ imul $TSS_size, PER_CPU_VAR(cpu_number), %r13d
23982+ lea init_tss(%r13), %r13
23983+#else
23984+ lea init_tss(%rip), %r13
23985+#endif
23986 subq $EXCEPTION_STKSZ, INIT_TSS_IST(\shift_ist)
23987 .endif
23988
23989@@ -1126,7 +1655,7 @@ ENTRY(\sym)
23990 .endif
23991
23992 CFI_ENDPROC
23993-END(\sym)
23994+ENDPROC(\sym)
23995 .endm
23996
23997 #ifdef CONFIG_TRACING
23998@@ -1167,9 +1696,10 @@ gs_change:
23999 2: mfence /* workaround */
24000 SWAPGS
24001 popfq_cfi
24002+ pax_force_retaddr
24003 ret
24004 CFI_ENDPROC
24005-END(native_load_gs_index)
24006+ENDPROC(native_load_gs_index)
24007
24008 _ASM_EXTABLE(gs_change,bad_gs)
24009 .section .fixup,"ax"
24010@@ -1197,9 +1727,10 @@ ENTRY(do_softirq_own_stack)
24011 CFI_DEF_CFA_REGISTER rsp
24012 CFI_ADJUST_CFA_OFFSET -8
24013 decl PER_CPU_VAR(irq_count)
24014+ pax_force_retaddr
24015 ret
24016 CFI_ENDPROC
24017-END(do_softirq_own_stack)
24018+ENDPROC(do_softirq_own_stack)
24019
24020 #ifdef CONFIG_XEN
24021 idtentry xen_hypervisor_callback xen_do_hypervisor_callback has_error_code=0
24022@@ -1240,7 +1771,7 @@ ENTRY(xen_do_hypervisor_callback) # do_hypervisor_callback(struct *pt_regs)
24023 #endif
24024 jmp error_exit
24025 CFI_ENDPROC
24026-END(xen_do_hypervisor_callback)
24027+ENDPROC(xen_do_hypervisor_callback)
24028
24029 /*
24030 * Hypervisor uses this for application faults while it executes.
24031@@ -1299,7 +1830,7 @@ ENTRY(xen_failsafe_callback)
24032 SAVE_ALL
24033 jmp error_exit
24034 CFI_ENDPROC
24035-END(xen_failsafe_callback)
24036+ENDPROC(xen_failsafe_callback)
24037
24038 apicinterrupt3 HYPERVISOR_CALLBACK_VECTOR \
24039 xen_hvm_callback_vector xen_evtchn_do_upcall
24040@@ -1344,18 +1875,25 @@ ENTRY(paranoid_exit)
24041 DEFAULT_FRAME
24042 DISABLE_INTERRUPTS(CLBR_NONE)
24043 TRACE_IRQS_OFF_DEBUG
24044- testl %ebx,%ebx /* swapgs needed? */
24045+ testl $1,%ebx /* swapgs needed? */
24046 jnz paranoid_restore
24047+#ifdef CONFIG_PAX_MEMORY_UDEREF
24048+ pax_exit_kernel_user
24049+#else
24050+ pax_exit_kernel
24051+#endif
24052 TRACE_IRQS_IRETQ 0
24053 SWAPGS_UNSAFE_STACK
24054 RESTORE_ALL 8
24055 INTERRUPT_RETURN
24056 paranoid_restore:
24057+ pax_exit_kernel
24058 TRACE_IRQS_IRETQ_DEBUG 0
24059 RESTORE_ALL 8
24060+ pax_force_retaddr_bts
24061 INTERRUPT_RETURN
24062 CFI_ENDPROC
24063-END(paranoid_exit)
24064+ENDPROC(paranoid_exit)
24065
24066 /*
24067 * Exception entry point. This expects an error code/orig_rax on the stack.
24068@@ -1382,12 +1920,23 @@ ENTRY(error_entry)
24069 movq %r14, R14+8(%rsp)
24070 movq %r15, R15+8(%rsp)
24071 xorl %ebx,%ebx
24072- testl $3,CS+8(%rsp)
24073+ testb $3,CS+8(%rsp)
24074 je error_kernelspace
24075 error_swapgs:
24076 SWAPGS
24077 error_sti:
24078+#ifdef CONFIG_PAX_MEMORY_UDEREF
24079+ testb $3, CS+8(%rsp)
24080+ jnz 1f
24081+ pax_enter_kernel
24082+ jmp 2f
24083+1: pax_enter_kernel_user
24084+2:
24085+#else
24086+ pax_enter_kernel
24087+#endif
24088 TRACE_IRQS_OFF
24089+ pax_force_retaddr
24090 ret
24091
24092 /*
24093@@ -1422,7 +1971,7 @@ error_bad_iret:
24094 decl %ebx /* Return to usergs */
24095 jmp error_sti
24096 CFI_ENDPROC
24097-END(error_entry)
24098+ENDPROC(error_entry)
24099
24100
24101 /* ebx: no swapgs flag (1: don't need swapgs, 0: need it) */
24102@@ -1433,7 +1982,7 @@ ENTRY(error_exit)
24103 DISABLE_INTERRUPTS(CLBR_NONE)
24104 TRACE_IRQS_OFF
24105 GET_THREAD_INFO(%rcx)
24106- testl %eax,%eax
24107+ testl $1,%eax
24108 jne retint_kernel
24109 LOCKDEP_SYS_EXIT_IRQ
24110 movl TI_flags(%rcx),%edx
24111@@ -1442,7 +1991,7 @@ ENTRY(error_exit)
24112 jnz retint_careful
24113 jmp retint_swapgs
24114 CFI_ENDPROC
24115-END(error_exit)
24116+ENDPROC(error_exit)
24117
24118 /*
24119 * Test if a given stack is an NMI stack or not.
24120@@ -1500,9 +2049,11 @@ ENTRY(nmi)
24121 * If %cs was not the kernel segment, then the NMI triggered in user
24122 * space, which means it is definitely not nested.
24123 */
24124+ cmpl $__KERNEXEC_KERNEL_CS, 16(%rsp)
24125+ je 1f
24126 cmpl $__KERNEL_CS, 16(%rsp)
24127 jne first_nmi
24128-
24129+1:
24130 /*
24131 * Check the special variable on the stack to see if NMIs are
24132 * executing.
24133@@ -1536,8 +2087,7 @@ nested_nmi:
24134
24135 1:
24136 /* Set up the interrupted NMIs stack to jump to repeat_nmi */
24137- leaq -1*8(%rsp), %rdx
24138- movq %rdx, %rsp
24139+ subq $8, %rsp
24140 CFI_ADJUST_CFA_OFFSET 1*8
24141 leaq -10*8(%rsp), %rdx
24142 pushq_cfi $__KERNEL_DS
24143@@ -1555,6 +2105,7 @@ nested_nmi_out:
24144 CFI_RESTORE rdx
24145
24146 /* No need to check faults here */
24147+# pax_force_retaddr_bts
24148 INTERRUPT_RETURN
24149
24150 CFI_RESTORE_STATE
24151@@ -1651,13 +2202,13 @@ end_repeat_nmi:
24152 subq $ORIG_RAX-R15, %rsp
24153 CFI_ADJUST_CFA_OFFSET ORIG_RAX-R15
24154 /*
24155- * Use save_paranoid to handle SWAPGS, but no need to use paranoid_exit
24156+ * Use save_paranoid_nmi to handle SWAPGS, but no need to use paranoid_exit
24157 * as we should not be calling schedule in NMI context.
24158 * Even with normal interrupts enabled. An NMI should not be
24159 * setting NEED_RESCHED or anything that normal interrupts and
24160 * exceptions might do.
24161 */
24162- call save_paranoid
24163+ call save_paranoid_nmi
24164 DEFAULT_FRAME 0
24165
24166 /*
24167@@ -1667,9 +2218,9 @@ end_repeat_nmi:
24168 * NMI itself takes a page fault, the page fault that was preempted
24169 * will read the information from the NMI page fault and not the
24170 * origin fault. Save it off and restore it if it changes.
24171- * Use the r12 callee-saved register.
24172+ * Use the r13 callee-saved register.
24173 */
24174- movq %cr2, %r12
24175+ movq %cr2, %r13
24176
24177 /* paranoidentry do_nmi, 0; without TRACE_IRQS_OFF */
24178 movq %rsp,%rdi
24179@@ -1678,29 +2229,34 @@ end_repeat_nmi:
24180
24181 /* Did the NMI take a page fault? Restore cr2 if it did */
24182 movq %cr2, %rcx
24183- cmpq %rcx, %r12
24184+ cmpq %rcx, %r13
24185 je 1f
24186- movq %r12, %cr2
24187+ movq %r13, %cr2
24188 1:
24189
24190- testl %ebx,%ebx /* swapgs needed? */
24191+ testl $1,%ebx /* swapgs needed? */
24192 jnz nmi_restore
24193 nmi_swapgs:
24194 SWAPGS_UNSAFE_STACK
24195 nmi_restore:
24196+ pax_exit_kernel_nmi
24197 /* Pop the extra iret frame at once */
24198 RESTORE_ALL 6*8
24199+ testb $3, 8(%rsp)
24200+ jnz 1f
24201+ pax_force_retaddr_bts
24202+1:
24203
24204 /* Clear the NMI executing stack variable */
24205 movq $0, 5*8(%rsp)
24206 jmp irq_return
24207 CFI_ENDPROC
24208-END(nmi)
24209+ENDPROC(nmi)
24210
24211 ENTRY(ignore_sysret)
24212 CFI_STARTPROC
24213 mov $-ENOSYS,%eax
24214 sysret
24215 CFI_ENDPROC
24216-END(ignore_sysret)
24217+ENDPROC(ignore_sysret)
24218
24219diff --git a/arch/x86/kernel/espfix_64.c b/arch/x86/kernel/espfix_64.c
24220index f5d0730..5bce89c 100644
24221--- a/arch/x86/kernel/espfix_64.c
24222+++ b/arch/x86/kernel/espfix_64.c
24223@@ -70,8 +70,7 @@ static DEFINE_MUTEX(espfix_init_mutex);
24224 #define ESPFIX_MAX_PAGES DIV_ROUND_UP(CONFIG_NR_CPUS, ESPFIX_STACKS_PER_PAGE)
24225 static void *espfix_pages[ESPFIX_MAX_PAGES];
24226
24227-static __page_aligned_bss pud_t espfix_pud_page[PTRS_PER_PUD]
24228- __aligned(PAGE_SIZE);
24229+static pud_t espfix_pud_page[PTRS_PER_PUD] __page_aligned_rodata;
24230
24231 static unsigned int page_random, slot_random;
24232
24233@@ -122,11 +121,17 @@ static void init_espfix_random(void)
24234 void __init init_espfix_bsp(void)
24235 {
24236 pgd_t *pgd_p;
24237+ unsigned long index = pgd_index(ESPFIX_BASE_ADDR);
24238
24239 /* Install the espfix pud into the kernel page directory */
24240- pgd_p = &init_level4_pgt[pgd_index(ESPFIX_BASE_ADDR)];
24241+ pgd_p = &init_level4_pgt[index];
24242 pgd_populate(&init_mm, pgd_p, (pud_t *)espfix_pud_page);
24243
24244+#ifdef CONFIG_PAX_PER_CPU_PGD
24245+ clone_pgd_range(get_cpu_pgd(0, kernel) + index, swapper_pg_dir + index, 1);
24246+ clone_pgd_range(get_cpu_pgd(0, user) + index, swapper_pg_dir + index, 1);
24247+#endif
24248+
24249 /* Randomize the locations */
24250 init_espfix_random();
24251
24252@@ -194,7 +199,7 @@ void init_espfix_ap(void)
24253 set_pte(&pte_p[n*PTE_STRIDE], pte);
24254
24255 /* Job is done for this CPU and any CPU which shares this page */
24256- ACCESS_ONCE(espfix_pages[page]) = stack_page;
24257+ ACCESS_ONCE_RW(espfix_pages[page]) = stack_page;
24258
24259 unlock_done:
24260 mutex_unlock(&espfix_init_mutex);
24261diff --git a/arch/x86/kernel/ftrace.c b/arch/x86/kernel/ftrace.c
24262index 8b7b0a5..02219db 100644
24263--- a/arch/x86/kernel/ftrace.c
24264+++ b/arch/x86/kernel/ftrace.c
24265@@ -89,7 +89,7 @@ static unsigned long text_ip_addr(unsigned long ip)
24266 * kernel identity mapping to modify code.
24267 */
24268 if (within(ip, (unsigned long)_text, (unsigned long)_etext))
24269- ip = (unsigned long)__va(__pa_symbol(ip));
24270+ ip = (unsigned long)__va(__pa_symbol(ktla_ktva(ip)));
24271
24272 return ip;
24273 }
24274@@ -105,6 +105,8 @@ ftrace_modify_code_direct(unsigned long ip, unsigned const char *old_code,
24275 {
24276 unsigned char replaced[MCOUNT_INSN_SIZE];
24277
24278+ ip = ktla_ktva(ip);
24279+
24280 /*
24281 * Note: Due to modules and __init, code can
24282 * disappear and change, we need to protect against faulting
24283@@ -230,7 +232,7 @@ static int update_ftrace_func(unsigned long ip, void *new)
24284 unsigned char old[MCOUNT_INSN_SIZE];
24285 int ret;
24286
24287- memcpy(old, (void *)ip, MCOUNT_INSN_SIZE);
24288+ memcpy(old, (void *)ktla_ktva(ip), MCOUNT_INSN_SIZE);
24289
24290 ftrace_update_func = ip;
24291 /* Make sure the breakpoints see the ftrace_update_func update */
24292@@ -311,7 +313,7 @@ static int add_break(unsigned long ip, const char *old)
24293 unsigned char replaced[MCOUNT_INSN_SIZE];
24294 unsigned char brk = BREAKPOINT_INSTRUCTION;
24295
24296- if (probe_kernel_read(replaced, (void *)ip, MCOUNT_INSN_SIZE))
24297+ if (probe_kernel_read(replaced, (void *)ktla_ktva(ip), MCOUNT_INSN_SIZE))
24298 return -EFAULT;
24299
24300 /* Make sure it is what we expect it to be */
24301@@ -670,11 +672,11 @@ static unsigned char *ftrace_jmp_replace(unsigned long ip, unsigned long addr)
24302 /* Module allocation simplifies allocating memory for code */
24303 static inline void *alloc_tramp(unsigned long size)
24304 {
24305- return module_alloc(size);
24306+ return module_alloc_exec(size);
24307 }
24308 static inline void tramp_free(void *tramp)
24309 {
24310- module_memfree(tramp);
24311+ module_memfree_exec(tramp);
24312 }
24313 #else
24314 /* Trampolines can only be created if modules are supported */
24315@@ -753,7 +755,9 @@ create_trampoline(struct ftrace_ops *ops, unsigned int *tramp_size)
24316 *tramp_size = size + MCOUNT_INSN_SIZE + sizeof(void *);
24317
24318 /* Copy ftrace_caller onto the trampoline memory */
24319+ pax_open_kernel();
24320 ret = probe_kernel_read(trampoline, (void *)start_offset, size);
24321+ pax_close_kernel();
24322 if (WARN_ON(ret < 0)) {
24323 tramp_free(trampoline);
24324 return 0;
24325@@ -763,6 +767,7 @@ create_trampoline(struct ftrace_ops *ops, unsigned int *tramp_size)
24326
24327 /* The trampoline ends with a jmp to ftrace_return */
24328 jmp = ftrace_jmp_replace(ip, (unsigned long)ftrace_return);
24329+ pax_open_kernel();
24330 memcpy(trampoline + size, jmp, MCOUNT_INSN_SIZE);
24331
24332 /*
24333@@ -775,6 +780,7 @@ create_trampoline(struct ftrace_ops *ops, unsigned int *tramp_size)
24334
24335 ptr = (unsigned long *)(trampoline + size + MCOUNT_INSN_SIZE);
24336 *ptr = (unsigned long)ops;
24337+ pax_close_kernel();
24338
24339 op_offset -= start_offset;
24340 memcpy(&op_ptr, trampoline + op_offset, OP_REF_SIZE);
24341@@ -792,7 +798,9 @@ create_trampoline(struct ftrace_ops *ops, unsigned int *tramp_size)
24342 op_ptr.offset = offset;
24343
24344 /* put in the new offset to the ftrace_ops */
24345+ pax_open_kernel();
24346 memcpy(trampoline + op_offset, &op_ptr, OP_REF_SIZE);
24347+ pax_close_kernel();
24348
24349 /* ALLOC_TRAMP flags lets us know we created it */
24350 ops->flags |= FTRACE_OPS_FL_ALLOC_TRAMP;
24351diff --git a/arch/x86/kernel/head64.c b/arch/x86/kernel/head64.c
24352index b111ab5..3d419ea 100644
24353--- a/arch/x86/kernel/head64.c
24354+++ b/arch/x86/kernel/head64.c
24355@@ -68,12 +68,12 @@ again:
24356 pgd = *pgd_p;
24357
24358 /*
24359- * The use of __START_KERNEL_map rather than __PAGE_OFFSET here is
24360- * critical -- __PAGE_OFFSET would point us back into the dynamic
24361+ * The use of __early_va rather than __va here is critical:
24362+ * __va would point us back into the dynamic
24363 * range and we might end up looping forever...
24364 */
24365 if (pgd)
24366- pud_p = (pudval_t *)((pgd & PTE_PFN_MASK) + __START_KERNEL_map - phys_base);
24367+ pud_p = (pudval_t *)(__early_va(pgd & PTE_PFN_MASK));
24368 else {
24369 if (next_early_pgt >= EARLY_DYNAMIC_PAGE_TABLES) {
24370 reset_early_page_tables();
24371@@ -83,13 +83,13 @@ again:
24372 pud_p = (pudval_t *)early_dynamic_pgts[next_early_pgt++];
24373 for (i = 0; i < PTRS_PER_PUD; i++)
24374 pud_p[i] = 0;
24375- *pgd_p = (pgdval_t)pud_p - __START_KERNEL_map + phys_base + _KERNPG_TABLE;
24376+ *pgd_p = (pgdval_t)__pa(pud_p) + _KERNPG_TABLE;
24377 }
24378 pud_p += pud_index(address);
24379 pud = *pud_p;
24380
24381 if (pud)
24382- pmd_p = (pmdval_t *)((pud & PTE_PFN_MASK) + __START_KERNEL_map - phys_base);
24383+ pmd_p = (pmdval_t *)(__early_va(pud & PTE_PFN_MASK));
24384 else {
24385 if (next_early_pgt >= EARLY_DYNAMIC_PAGE_TABLES) {
24386 reset_early_page_tables();
24387@@ -99,7 +99,7 @@ again:
24388 pmd_p = (pmdval_t *)early_dynamic_pgts[next_early_pgt++];
24389 for (i = 0; i < PTRS_PER_PMD; i++)
24390 pmd_p[i] = 0;
24391- *pud_p = (pudval_t)pmd_p - __START_KERNEL_map + phys_base + _KERNPG_TABLE;
24392+ *pud_p = (pudval_t)__pa(pmd_p) + _KERNPG_TABLE;
24393 }
24394 pmd = (physaddr & PMD_MASK) + early_pmd_flags;
24395 pmd_p[pmd_index(address)] = pmd;
24396@@ -180,7 +180,6 @@ asmlinkage __visible void __init x86_64_start_kernel(char * real_mode_data)
24397 if (console_loglevel >= CONSOLE_LOGLEVEL_DEBUG)
24398 early_printk("Kernel alive\n");
24399
24400- clear_page(init_level4_pgt);
24401 /* set init_level4_pgt kernel high mapping*/
24402 init_level4_pgt[511] = early_level4_pgt[511];
24403
24404diff --git a/arch/x86/kernel/head_32.S b/arch/x86/kernel/head_32.S
24405index 30a2aa3..d62e1dd 100644
24406--- a/arch/x86/kernel/head_32.S
24407+++ b/arch/x86/kernel/head_32.S
24408@@ -26,6 +26,12 @@
24409 /* Physical address */
24410 #define pa(X) ((X) - __PAGE_OFFSET)
24411
24412+#ifdef CONFIG_PAX_KERNEXEC
24413+#define ta(X) (X)
24414+#else
24415+#define ta(X) ((X) - __PAGE_OFFSET)
24416+#endif
24417+
24418 /*
24419 * References to members of the new_cpu_data structure.
24420 */
24421@@ -55,11 +61,7 @@
24422 * and small than max_low_pfn, otherwise will waste some page table entries
24423 */
24424
24425-#if PTRS_PER_PMD > 1
24426-#define PAGE_TABLE_SIZE(pages) (((pages) / PTRS_PER_PMD) + PTRS_PER_PGD)
24427-#else
24428-#define PAGE_TABLE_SIZE(pages) ((pages) / PTRS_PER_PGD)
24429-#endif
24430+#define PAGE_TABLE_SIZE(pages) ((pages) / PTRS_PER_PTE)
24431
24432 /* Number of possible pages in the lowmem region */
24433 LOWMEM_PAGES = (((1<<32) - __PAGE_OFFSET) >> PAGE_SHIFT)
24434@@ -78,6 +80,12 @@ INIT_MAP_SIZE = PAGE_TABLE_SIZE(KERNEL_PAGES) * PAGE_SIZE
24435 RESERVE_BRK(pagetables, INIT_MAP_SIZE)
24436
24437 /*
24438+ * Real beginning of normal "text" segment
24439+ */
24440+ENTRY(stext)
24441+ENTRY(_stext)
24442+
24443+/*
24444 * 32-bit kernel entrypoint; only used by the boot CPU. On entry,
24445 * %esi points to the real-mode code as a 32-bit pointer.
24446 * CS and DS must be 4 GB flat segments, but we don't depend on
24447@@ -85,6 +93,13 @@ RESERVE_BRK(pagetables, INIT_MAP_SIZE)
24448 * can.
24449 */
24450 __HEAD
24451+
24452+#ifdef CONFIG_PAX_KERNEXEC
24453+ jmp startup_32
24454+/* PaX: fill first page in .text with int3 to catch NULL derefs in kernel mode */
24455+.fill PAGE_SIZE-5,1,0xcc
24456+#endif
24457+
24458 ENTRY(startup_32)
24459 movl pa(stack_start),%ecx
24460
24461@@ -106,6 +121,59 @@ ENTRY(startup_32)
24462 2:
24463 leal -__PAGE_OFFSET(%ecx),%esp
24464
24465+#ifdef CONFIG_SMP
24466+ movl $pa(cpu_gdt_table),%edi
24467+ movl $__per_cpu_load,%eax
24468+ movw %ax,GDT_ENTRY_PERCPU * 8 + 2(%edi)
24469+ rorl $16,%eax
24470+ movb %al,GDT_ENTRY_PERCPU * 8 + 4(%edi)
24471+ movb %ah,GDT_ENTRY_PERCPU * 8 + 7(%edi)
24472+ movl $__per_cpu_end - 1,%eax
24473+ subl $__per_cpu_start,%eax
24474+ movw %ax,GDT_ENTRY_PERCPU * 8 + 0(%edi)
24475+#endif
24476+
24477+#ifdef CONFIG_PAX_MEMORY_UDEREF
24478+ movl $NR_CPUS,%ecx
24479+ movl $pa(cpu_gdt_table),%edi
24480+1:
24481+ movl $((((__PAGE_OFFSET-1) & 0xf0000000) >> 12) | 0x00c09700),GDT_ENTRY_KERNEL_DS * 8 + 4(%edi)
24482+ movl $((((__PAGE_OFFSET-1) & 0xf0000000) >> 12) | 0x00c0fb00),GDT_ENTRY_DEFAULT_USER_CS * 8 + 4(%edi)
24483+ movl $((((__PAGE_OFFSET-1) & 0xf0000000) >> 12) | 0x00c0f300),GDT_ENTRY_DEFAULT_USER_DS * 8 + 4(%edi)
24484+ addl $PAGE_SIZE_asm,%edi
24485+ loop 1b
24486+#endif
24487+
24488+#ifdef CONFIG_PAX_KERNEXEC
24489+ movl $pa(boot_gdt),%edi
24490+ movl $__LOAD_PHYSICAL_ADDR,%eax
24491+ movw %ax,GDT_ENTRY_BOOT_CS * 8 + 2(%edi)
24492+ rorl $16,%eax
24493+ movb %al,GDT_ENTRY_BOOT_CS * 8 + 4(%edi)
24494+ movb %ah,GDT_ENTRY_BOOT_CS * 8 + 7(%edi)
24495+ rorl $16,%eax
24496+
24497+ ljmp $(__BOOT_CS),$1f
24498+1:
24499+
24500+ movl $NR_CPUS,%ecx
24501+ movl $pa(cpu_gdt_table),%edi
24502+ addl $__PAGE_OFFSET,%eax
24503+1:
24504+ movb $0xc0,GDT_ENTRY_KERNEL_CS * 8 + 6(%edi)
24505+ movb $0xc0,GDT_ENTRY_KERNEXEC_KERNEL_CS * 8 + 6(%edi)
24506+ movw %ax,GDT_ENTRY_KERNEL_CS * 8 + 2(%edi)
24507+ movw %ax,GDT_ENTRY_KERNEXEC_KERNEL_CS * 8 + 2(%edi)
24508+ rorl $16,%eax
24509+ movb %al,GDT_ENTRY_KERNEL_CS * 8 + 4(%edi)
24510+ movb %al,GDT_ENTRY_KERNEXEC_KERNEL_CS * 8 + 4(%edi)
24511+ movb %ah,GDT_ENTRY_KERNEL_CS * 8 + 7(%edi)
24512+ movb %ah,GDT_ENTRY_KERNEXEC_KERNEL_CS * 8 + 7(%edi)
24513+ rorl $16,%eax
24514+ addl $PAGE_SIZE_asm,%edi
24515+ loop 1b
24516+#endif
24517+
24518 /*
24519 * Clear BSS first so that there are no surprises...
24520 */
24521@@ -201,8 +269,11 @@ ENTRY(startup_32)
24522 movl %eax, pa(max_pfn_mapped)
24523
24524 /* Do early initialization of the fixmap area */
24525- movl $pa(initial_pg_fixmap)+PDE_IDENT_ATTR,%eax
24526- movl %eax,pa(initial_pg_pmd+0x1000*KPMDS-8)
24527+#ifdef CONFIG_COMPAT_VDSO
24528+ movl $pa(initial_pg_fixmap)+PDE_IDENT_ATTR+_PAGE_USER,pa(initial_pg_pmd+0x1000*KPMDS-8)
24529+#else
24530+ movl $pa(initial_pg_fixmap)+PDE_IDENT_ATTR,pa(initial_pg_pmd+0x1000*KPMDS-8)
24531+#endif
24532 #else /* Not PAE */
24533
24534 page_pde_offset = (__PAGE_OFFSET >> 20);
24535@@ -232,8 +303,11 @@ page_pde_offset = (__PAGE_OFFSET >> 20);
24536 movl %eax, pa(max_pfn_mapped)
24537
24538 /* Do early initialization of the fixmap area */
24539- movl $pa(initial_pg_fixmap)+PDE_IDENT_ATTR,%eax
24540- movl %eax,pa(initial_page_table+0xffc)
24541+#ifdef CONFIG_COMPAT_VDSO
24542+ movl $pa(initial_pg_fixmap)+PDE_IDENT_ATTR+_PAGE_USER,pa(initial_page_table+0xffc)
24543+#else
24544+ movl $pa(initial_pg_fixmap)+PDE_IDENT_ATTR,pa(initial_page_table+0xffc)
24545+#endif
24546 #endif
24547
24548 #ifdef CONFIG_PARAVIRT
24549@@ -247,9 +321,7 @@ page_pde_offset = (__PAGE_OFFSET >> 20);
24550 cmpl $num_subarch_entries, %eax
24551 jae bad_subarch
24552
24553- movl pa(subarch_entries)(,%eax,4), %eax
24554- subl $__PAGE_OFFSET, %eax
24555- jmp *%eax
24556+ jmp *pa(subarch_entries)(,%eax,4)
24557
24558 bad_subarch:
24559 WEAK(lguest_entry)
24560@@ -261,10 +333,10 @@ WEAK(xen_entry)
24561 __INITDATA
24562
24563 subarch_entries:
24564- .long default_entry /* normal x86/PC */
24565- .long lguest_entry /* lguest hypervisor */
24566- .long xen_entry /* Xen hypervisor */
24567- .long default_entry /* Moorestown MID */
24568+ .long ta(default_entry) /* normal x86/PC */
24569+ .long ta(lguest_entry) /* lguest hypervisor */
24570+ .long ta(xen_entry) /* Xen hypervisor */
24571+ .long ta(default_entry) /* Moorestown MID */
24572 num_subarch_entries = (. - subarch_entries) / 4
24573 .previous
24574 #else
24575@@ -354,6 +426,7 @@ default_entry:
24576 movl pa(mmu_cr4_features),%eax
24577 movl %eax,%cr4
24578
24579+#ifdef CONFIG_X86_PAE
24580 testb $X86_CR4_PAE, %al # check if PAE is enabled
24581 jz enable_paging
24582
24583@@ -382,6 +455,9 @@ default_entry:
24584 /* Make changes effective */
24585 wrmsr
24586
24587+ btsl $_PAGE_BIT_NX-32,pa(__supported_pte_mask+4)
24588+#endif
24589+
24590 enable_paging:
24591
24592 /*
24593@@ -449,14 +525,20 @@ is486:
24594 1: movl $(__KERNEL_DS),%eax # reload all the segment registers
24595 movl %eax,%ss # after changing gdt.
24596
24597- movl $(__USER_DS),%eax # DS/ES contains default USER segment
24598+# movl $(__KERNEL_DS),%eax # DS/ES contains default KERNEL segment
24599 movl %eax,%ds
24600 movl %eax,%es
24601
24602 movl $(__KERNEL_PERCPU), %eax
24603 movl %eax,%fs # set this cpu's percpu
24604
24605+#ifdef CONFIG_CC_STACKPROTECTOR
24606 movl $(__KERNEL_STACK_CANARY),%eax
24607+#elif defined(CONFIG_PAX_MEMORY_UDEREF)
24608+ movl $(__USER_DS),%eax
24609+#else
24610+ xorl %eax,%eax
24611+#endif
24612 movl %eax,%gs
24613
24614 xorl %eax,%eax # Clear LDT
24615@@ -513,8 +595,11 @@ setup_once:
24616 * relocation. Manually set base address in stack canary
24617 * segment descriptor.
24618 */
24619- movl $gdt_page,%eax
24620+ movl $cpu_gdt_table,%eax
24621 movl $stack_canary,%ecx
24622+#ifdef CONFIG_SMP
24623+ addl $__per_cpu_load,%ecx
24624+#endif
24625 movw %cx, 8 * GDT_ENTRY_STACK_CANARY + 2(%eax)
24626 shrl $16, %ecx
24627 movb %cl, 8 * GDT_ENTRY_STACK_CANARY + 4(%eax)
24628@@ -551,7 +636,7 @@ early_idt_handler_common:
24629 cmpl $2,(%esp) # X86_TRAP_NMI
24630 je is_nmi # Ignore NMI
24631
24632- cmpl $2,%ss:early_recursion_flag
24633+ cmpl $1,%ss:early_recursion_flag
24634 je hlt_loop
24635 incl %ss:early_recursion_flag
24636
24637@@ -589,8 +674,8 @@ early_idt_handler_common:
24638 pushl (20+6*4)(%esp) /* trapno */
24639 pushl $fault_msg
24640 call printk
24641-#endif
24642 call dump_stack
24643+#endif
24644 hlt_loop:
24645 hlt
24646 jmp hlt_loop
24647@@ -610,8 +695,11 @@ ENDPROC(early_idt_handler_common)
24648 /* This is the default interrupt "handler" :-) */
24649 ALIGN
24650 ignore_int:
24651- cld
24652 #ifdef CONFIG_PRINTK
24653+ cmpl $2,%ss:early_recursion_flag
24654+ je hlt_loop
24655+ incl %ss:early_recursion_flag
24656+ cld
24657 pushl %eax
24658 pushl %ecx
24659 pushl %edx
24660@@ -620,9 +708,6 @@ ignore_int:
24661 movl $(__KERNEL_DS),%eax
24662 movl %eax,%ds
24663 movl %eax,%es
24664- cmpl $2,early_recursion_flag
24665- je hlt_loop
24666- incl early_recursion_flag
24667 pushl 16(%esp)
24668 pushl 24(%esp)
24669 pushl 32(%esp)
24670@@ -656,29 +741,34 @@ ENTRY(setup_once_ref)
24671 /*
24672 * BSS section
24673 */
24674-__PAGE_ALIGNED_BSS
24675- .align PAGE_SIZE
24676 #ifdef CONFIG_X86_PAE
24677+.section .initial_pg_pmd,"a",@progbits
24678 initial_pg_pmd:
24679 .fill 1024*KPMDS,4,0
24680 #else
24681+.section .initial_page_table,"a",@progbits
24682 ENTRY(initial_page_table)
24683 .fill 1024,4,0
24684 #endif
24685+.section .initial_pg_fixmap,"a",@progbits
24686 initial_pg_fixmap:
24687 .fill 1024,4,0
24688+.section .empty_zero_page,"a",@progbits
24689 ENTRY(empty_zero_page)
24690 .fill 4096,1,0
24691+.section .swapper_pg_dir,"a",@progbits
24692 ENTRY(swapper_pg_dir)
24693+#ifdef CONFIG_X86_PAE
24694+ .fill 4,8,0
24695+#else
24696 .fill 1024,4,0
24697+#endif
24698
24699 /*
24700 * This starts the data section.
24701 */
24702 #ifdef CONFIG_X86_PAE
24703-__PAGE_ALIGNED_DATA
24704- /* Page-aligned for the benefit of paravirt? */
24705- .align PAGE_SIZE
24706+.section .initial_page_table,"a",@progbits
24707 ENTRY(initial_page_table)
24708 .long pa(initial_pg_pmd+PGD_IDENT_ATTR),0 /* low identity map */
24709 # if KPMDS == 3
24710@@ -697,12 +787,20 @@ ENTRY(initial_page_table)
24711 # error "Kernel PMDs should be 1, 2 or 3"
24712 # endif
24713 .align PAGE_SIZE /* needs to be page-sized too */
24714+
24715+#ifdef CONFIG_PAX_PER_CPU_PGD
24716+ENTRY(cpu_pgd)
24717+ .rept 2*NR_CPUS
24718+ .fill 4,8,0
24719+ .endr
24720+#endif
24721+
24722 #endif
24723
24724 .data
24725 .balign 4
24726 ENTRY(stack_start)
24727- .long init_thread_union+THREAD_SIZE
24728+ .long init_thread_union+THREAD_SIZE-8
24729
24730 __INITRODATA
24731 int_msg:
24732@@ -730,7 +828,7 @@ fault_msg:
24733 * segment size, and 32-bit linear address value:
24734 */
24735
24736- .data
24737+.section .rodata,"a",@progbits
24738 .globl boot_gdt_descr
24739 .globl idt_descr
24740
24741@@ -739,7 +837,7 @@ fault_msg:
24742 .word 0 # 32 bit align gdt_desc.address
24743 boot_gdt_descr:
24744 .word __BOOT_DS+7
24745- .long boot_gdt - __PAGE_OFFSET
24746+ .long pa(boot_gdt)
24747
24748 .word 0 # 32-bit align idt_desc.address
24749 idt_descr:
24750@@ -750,7 +848,7 @@ idt_descr:
24751 .word 0 # 32 bit align gdt_desc.address
24752 ENTRY(early_gdt_descr)
24753 .word GDT_ENTRIES*8-1
24754- .long gdt_page /* Overwritten for secondary CPUs */
24755+ .long cpu_gdt_table /* Overwritten for secondary CPUs */
24756
24757 /*
24758 * The boot_gdt must mirror the equivalent in setup.S and is
24759@@ -759,5 +857,65 @@ ENTRY(early_gdt_descr)
24760 .align L1_CACHE_BYTES
24761 ENTRY(boot_gdt)
24762 .fill GDT_ENTRY_BOOT_CS,8,0
24763- .quad 0x00cf9a000000ffff /* kernel 4GB code at 0x00000000 */
24764- .quad 0x00cf92000000ffff /* kernel 4GB data at 0x00000000 */
24765+ .quad 0x00cf9b000000ffff /* kernel 4GB code at 0x00000000 */
24766+ .quad 0x00cf93000000ffff /* kernel 4GB data at 0x00000000 */
24767+
24768+ .align PAGE_SIZE_asm
24769+ENTRY(cpu_gdt_table)
24770+ .rept NR_CPUS
24771+ .quad 0x0000000000000000 /* NULL descriptor */
24772+ .quad 0x0000000000000000 /* 0x0b reserved */
24773+ .quad 0x0000000000000000 /* 0x13 reserved */
24774+ .quad 0x0000000000000000 /* 0x1b reserved */
24775+
24776+#ifdef CONFIG_PAX_KERNEXEC
24777+ .quad 0x00cf9b000000ffff /* 0x20 alternate kernel 4GB code at 0x00000000 */
24778+#else
24779+ .quad 0x0000000000000000 /* 0x20 unused */
24780+#endif
24781+
24782+ .quad 0x0000000000000000 /* 0x28 unused */
24783+ .quad 0x0000000000000000 /* 0x33 TLS entry 1 */
24784+ .quad 0x0000000000000000 /* 0x3b TLS entry 2 */
24785+ .quad 0x0000000000000000 /* 0x43 TLS entry 3 */
24786+ .quad 0x0000000000000000 /* 0x4b reserved */
24787+ .quad 0x0000000000000000 /* 0x53 reserved */
24788+ .quad 0x0000000000000000 /* 0x5b reserved */
24789+
24790+ .quad 0x00cf9b000000ffff /* 0x60 kernel 4GB code at 0x00000000 */
24791+ .quad 0x00cf93000000ffff /* 0x68 kernel 4GB data at 0x00000000 */
24792+ .quad 0x00cffb000000ffff /* 0x73 user 4GB code at 0x00000000 */
24793+ .quad 0x00cff3000000ffff /* 0x7b user 4GB data at 0x00000000 */
24794+
24795+ .quad 0x0000000000000000 /* 0x80 TSS descriptor */
24796+ .quad 0x0000000000000000 /* 0x88 LDT descriptor */
24797+
24798+ /*
24799+ * Segments used for calling PnP BIOS have byte granularity.
24800+ * The code segments and data segments have fixed 64k limits,
24801+ * the transfer segment sizes are set at run time.
24802+ */
24803+ .quad 0x00409b000000ffff /* 0x90 32-bit code */
24804+ .quad 0x00009b000000ffff /* 0x98 16-bit code */
24805+ .quad 0x000093000000ffff /* 0xa0 16-bit data */
24806+ .quad 0x0000930000000000 /* 0xa8 16-bit data */
24807+ .quad 0x0000930000000000 /* 0xb0 16-bit data */
24808+
24809+ /*
24810+ * The APM segments have byte granularity and their bases
24811+ * are set at run time. All have 64k limits.
24812+ */
24813+ .quad 0x00409b000000ffff /* 0xb8 APM CS code */
24814+ .quad 0x00009b000000ffff /* 0xc0 APM CS 16 code (16 bit) */
24815+ .quad 0x004093000000ffff /* 0xc8 APM DS data */
24816+
24817+ .quad 0x00c093000000ffff /* 0xd0 - ESPFIX SS */
24818+ .quad 0x0040930000000000 /* 0xd8 - PERCPU */
24819+ .quad 0x0040910000000017 /* 0xe0 - STACK_CANARY */
24820+ .quad 0x0000000000000000 /* 0xe8 - PCIBIOS_CS */
24821+ .quad 0x0000000000000000 /* 0xf0 - PCIBIOS_DS */
24822+ .quad 0x0000000000000000 /* 0xf8 - GDT entry 31: double-fault TSS */
24823+
24824+ /* Be sure this is zeroed to avoid false validations in Xen */
24825+ .fill PAGE_SIZE_asm - GDT_SIZE,1,0
24826+ .endr
24827diff --git a/arch/x86/kernel/head_64.S b/arch/x86/kernel/head_64.S
24828index f8a8406..ad6d014 100644
24829--- a/arch/x86/kernel/head_64.S
24830+++ b/arch/x86/kernel/head_64.S
24831@@ -20,6 +20,8 @@
24832 #include <asm/processor-flags.h>
24833 #include <asm/percpu.h>
24834 #include <asm/nops.h>
24835+#include <asm/cpufeature.h>
24836+#include <asm/alternative-asm.h>
24837
24838 #ifdef CONFIG_PARAVIRT
24839 #include <asm/asm-offsets.h>
24840@@ -41,6 +43,12 @@ L4_PAGE_OFFSET = pgd_index(__PAGE_OFFSET)
24841 L3_PAGE_OFFSET = pud_index(__PAGE_OFFSET)
24842 L4_START_KERNEL = pgd_index(__START_KERNEL_map)
24843 L3_START_KERNEL = pud_index(__START_KERNEL_map)
24844+L4_VMALLOC_START = pgd_index(VMALLOC_START)
24845+L3_VMALLOC_START = pud_index(VMALLOC_START)
24846+L4_VMALLOC_END = pgd_index(VMALLOC_END)
24847+L3_VMALLOC_END = pud_index(VMALLOC_END)
24848+L4_VMEMMAP_START = pgd_index(VMEMMAP_START)
24849+L3_VMEMMAP_START = pud_index(VMEMMAP_START)
24850
24851 .text
24852 __HEAD
24853@@ -89,11 +97,26 @@ startup_64:
24854 * Fixup the physical addresses in the page table
24855 */
24856 addq %rbp, early_level4_pgt + (L4_START_KERNEL*8)(%rip)
24857+ addq %rbp, init_level4_pgt + (L4_PAGE_OFFSET*8)(%rip)
24858+ addq %rbp, init_level4_pgt + (L4_VMALLOC_START*8)(%rip)
24859+ addq %rbp, init_level4_pgt + (L4_VMALLOC_END*8)(%rip)
24860+ addq %rbp, init_level4_pgt + (L4_VMEMMAP_START*8)(%rip)
24861+ addq %rbp, init_level4_pgt + (L4_START_KERNEL*8)(%rip)
24862
24863- addq %rbp, level3_kernel_pgt + (510*8)(%rip)
24864- addq %rbp, level3_kernel_pgt + (511*8)(%rip)
24865+ addq %rbp, level3_ident_pgt + (0*8)(%rip)
24866+#ifndef CONFIG_XEN
24867+ addq %rbp, level3_ident_pgt + (1*8)(%rip)
24868+#endif
24869
24870+ addq %rbp, level3_vmemmap_pgt + (L3_VMEMMAP_START*8)(%rip)
24871+
24872+ addq %rbp, level3_kernel_pgt + (L3_START_KERNEL*8)(%rip)
24873+ addq %rbp, level3_kernel_pgt + ((L3_START_KERNEL+1)*8)(%rip)
24874+
24875+ addq %rbp, level2_fixmap_pgt + (504*8)(%rip)
24876+ addq %rbp, level2_fixmap_pgt + (505*8)(%rip)
24877 addq %rbp, level2_fixmap_pgt + (506*8)(%rip)
24878+ addq %rbp, level2_fixmap_pgt + (507*8)(%rip)
24879
24880 /*
24881 * Set up the identity mapping for the switchover. These
24882@@ -174,11 +197,12 @@ ENTRY(secondary_startup_64)
24883 * after the boot processor executes this code.
24884 */
24885
24886+ orq $-1, %rbp
24887 movq $(init_level4_pgt - __START_KERNEL_map), %rax
24888 1:
24889
24890- /* Enable PAE mode and PGE */
24891- movl $(X86_CR4_PAE | X86_CR4_PGE), %ecx
24892+ /* Enable PAE mode and PSE/PGE */
24893+ movl $(X86_CR4_PSE | X86_CR4_PAE | X86_CR4_PGE), %ecx
24894 movq %rcx, %cr4
24895
24896 /* Setup early boot stage 4 level pagetables. */
24897@@ -199,10 +223,21 @@ ENTRY(secondary_startup_64)
24898 movl $MSR_EFER, %ecx
24899 rdmsr
24900 btsl $_EFER_SCE, %eax /* Enable System Call */
24901- btl $20,%edi /* No Execute supported? */
24902+ btl $(X86_FEATURE_NX & 31),%edi /* No Execute supported? */
24903 jnc 1f
24904 btsl $_EFER_NX, %eax
24905+ cmpq $-1, %rbp
24906+ je 1f
24907 btsq $_PAGE_BIT_NX,early_pmd_flags(%rip)
24908+ btsq $_PAGE_BIT_NX, init_level4_pgt + 8*L4_PAGE_OFFSET(%rip)
24909+ btsq $_PAGE_BIT_NX, init_level4_pgt + 8*L4_VMALLOC_START(%rip)
24910+ btsq $_PAGE_BIT_NX, init_level4_pgt + 8*L4_VMALLOC_END(%rip)
24911+ btsq $_PAGE_BIT_NX, init_level4_pgt + 8*L4_VMEMMAP_START(%rip)
24912+ btsq $_PAGE_BIT_NX, level2_fixmap_pgt + 8*504(%rip)
24913+ btsq $_PAGE_BIT_NX, level2_fixmap_pgt + 8*505(%rip)
24914+ btsq $_PAGE_BIT_NX, level2_fixmap_pgt + 8*506(%rip)
24915+ btsq $_PAGE_BIT_NX, level2_fixmap_pgt + 8*507(%rip)
24916+ btsq $_PAGE_BIT_NX, __supported_pte_mask(%rip)
24917 1: wrmsr /* Make changes effective */
24918
24919 /* Setup cr0 */
24920@@ -282,6 +317,7 @@ ENTRY(secondary_startup_64)
24921 * REX.W + FF /5 JMP m16:64 Jump far, absolute indirect,
24922 * address given in m16:64.
24923 */
24924+ pax_set_fptr_mask
24925 movq initial_code(%rip),%rax
24926 pushq $0 # fake return address to stop unwinder
24927 pushq $__KERNEL_CS # set correct cs
24928@@ -313,7 +349,7 @@ ENDPROC(start_cpu0)
24929 .quad INIT_PER_CPU_VAR(irq_stack_union)
24930
24931 GLOBAL(stack_start)
24932- .quad init_thread_union+THREAD_SIZE-8
24933+ .quad init_thread_union+THREAD_SIZE-16
24934 .word 0
24935 __FINITDATA
24936
24937@@ -393,7 +429,7 @@ early_idt_handler_common:
24938 call dump_stack
24939 #ifdef CONFIG_KALLSYMS
24940 leaq early_idt_ripmsg(%rip),%rdi
24941- movq 40(%rsp),%rsi # %rip again
24942+ movq 88(%rsp),%rsi # %rip again
24943 call __print_symbol
24944 #endif
24945 #endif /* EARLY_PRINTK */
24946@@ -422,6 +458,7 @@ ENDPROC(early_idt_handler_common)
24947 early_recursion_flag:
24948 .long 0
24949
24950+ .section .rodata,"a",@progbits
24951 #ifdef CONFIG_EARLY_PRINTK
24952 early_idt_msg:
24953 .asciz "PANIC: early exception %02lx rip %lx:%lx error %lx cr2 %lx\n"
24954@@ -449,29 +486,52 @@ NEXT_PAGE(early_level4_pgt)
24955 NEXT_PAGE(early_dynamic_pgts)
24956 .fill 512*EARLY_DYNAMIC_PAGE_TABLES,8,0
24957
24958- .data
24959+ .section .rodata,"a",@progbits
24960
24961-#ifndef CONFIG_XEN
24962 NEXT_PAGE(init_level4_pgt)
24963- .fill 512,8,0
24964-#else
24965-NEXT_PAGE(init_level4_pgt)
24966- .quad level3_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE
24967 .org init_level4_pgt + L4_PAGE_OFFSET*8, 0
24968 .quad level3_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE
24969+ .org init_level4_pgt + L4_VMALLOC_START*8, 0
24970+ .quad level3_vmalloc_start_pgt - __START_KERNEL_map + _KERNPG_TABLE
24971+ .org init_level4_pgt + L4_VMALLOC_END*8, 0
24972+ .quad level3_vmalloc_end_pgt - __START_KERNEL_map + _KERNPG_TABLE
24973+ .org init_level4_pgt + L4_VMEMMAP_START*8, 0
24974+ .quad level3_vmemmap_pgt - __START_KERNEL_map + _KERNPG_TABLE
24975 .org init_level4_pgt + L4_START_KERNEL*8, 0
24976 /* (2^48-(2*1024*1024*1024))/(2^39) = 511 */
24977 .quad level3_kernel_pgt - __START_KERNEL_map + _PAGE_TABLE
24978
24979+#ifdef CONFIG_PAX_PER_CPU_PGD
24980+NEXT_PAGE(cpu_pgd)
24981+ .rept 2*NR_CPUS
24982+ .fill 512,8,0
24983+ .endr
24984+#endif
24985+
24986 NEXT_PAGE(level3_ident_pgt)
24987 .quad level2_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE
24988+#ifdef CONFIG_XEN
24989 .fill 511, 8, 0
24990+#else
24991+ .quad level2_ident_pgt + PAGE_SIZE - __START_KERNEL_map + _KERNPG_TABLE
24992+ .fill 510,8,0
24993+#endif
24994+
24995+NEXT_PAGE(level3_vmalloc_start_pgt)
24996+ .fill 512,8,0
24997+
24998+NEXT_PAGE(level3_vmalloc_end_pgt)
24999+ .fill 512,8,0
25000+
25001+NEXT_PAGE(level3_vmemmap_pgt)
25002+ .fill L3_VMEMMAP_START,8,0
25003+ .quad level2_vmemmap_pgt - __START_KERNEL_map + _KERNPG_TABLE
25004+
25005 NEXT_PAGE(level2_ident_pgt)
25006- /* Since I easily can, map the first 1G.
25007+ /* Since I easily can, map the first 2G.
25008 * Don't set NX because code runs from these pages.
25009 */
25010- PMDS(0, __PAGE_KERNEL_IDENT_LARGE_EXEC, PTRS_PER_PMD)
25011-#endif
25012+ PMDS(0, __PAGE_KERNEL_IDENT_LARGE_EXEC, 2*PTRS_PER_PMD)
25013
25014 NEXT_PAGE(level3_kernel_pgt)
25015 .fill L3_START_KERNEL,8,0
25016@@ -479,6 +539,9 @@ NEXT_PAGE(level3_kernel_pgt)
25017 .quad level2_kernel_pgt - __START_KERNEL_map + _KERNPG_TABLE
25018 .quad level2_fixmap_pgt - __START_KERNEL_map + _PAGE_TABLE
25019
25020+NEXT_PAGE(level2_vmemmap_pgt)
25021+ .fill 512,8,0
25022+
25023 NEXT_PAGE(level2_kernel_pgt)
25024 /*
25025 * 512 MB kernel mapping. We spend a full page on this pagetable
25026@@ -494,23 +557,61 @@ NEXT_PAGE(level2_kernel_pgt)
25027 KERNEL_IMAGE_SIZE/PMD_SIZE)
25028
25029 NEXT_PAGE(level2_fixmap_pgt)
25030- .fill 506,8,0
25031- .quad level1_fixmap_pgt - __START_KERNEL_map + _PAGE_TABLE
25032- /* 8MB reserved for vsyscalls + a 2MB hole = 4 + 1 entries */
25033- .fill 5,8,0
25034+ .fill 504,8,0
25035+ .quad level1_fixmap_pgt - __START_KERNEL_map + 0 * PAGE_SIZE + _PAGE_TABLE
25036+ .quad level1_fixmap_pgt - __START_KERNEL_map + 1 * PAGE_SIZE + _PAGE_TABLE
25037+ .quad level1_fixmap_pgt - __START_KERNEL_map + 2 * PAGE_SIZE + _PAGE_TABLE
25038+ .quad level1_vsyscall_pgt - __START_KERNEL_map + _PAGE_TABLE
25039+ /* 6MB reserved for vsyscalls + a 2MB hole = 3 + 1 entries */
25040+ .fill 4,8,0
25041
25042 NEXT_PAGE(level1_fixmap_pgt)
25043+ .fill 3*512,8,0
25044+
25045+NEXT_PAGE(level1_vsyscall_pgt)
25046 .fill 512,8,0
25047
25048 #undef PMDS
25049
25050- .data
25051+ .align PAGE_SIZE
25052+ENTRY(cpu_gdt_table)
25053+ .rept NR_CPUS
25054+ .quad 0x0000000000000000 /* NULL descriptor */
25055+ .quad 0x00cf9b000000ffff /* __KERNEL32_CS */
25056+ .quad 0x00af9b000000ffff /* __KERNEL_CS */
25057+ .quad 0x00cf93000000ffff /* __KERNEL_DS */
25058+ .quad 0x00cffb000000ffff /* __USER32_CS */
25059+ .quad 0x00cff3000000ffff /* __USER_DS, __USER32_DS */
25060+ .quad 0x00affb000000ffff /* __USER_CS */
25061+
25062+#ifdef CONFIG_PAX_KERNEXEC
25063+ .quad 0x00af9b000000ffff /* __KERNEXEC_KERNEL_CS */
25064+#else
25065+ .quad 0x0 /* unused */
25066+#endif
25067+
25068+ .quad 0,0 /* TSS */
25069+ .quad 0,0 /* LDT */
25070+ .quad 0,0,0 /* three TLS descriptors */
25071+ .quad 0x0000f40000000000 /* node/CPU stored in limit */
25072+ /* asm/segment.h:GDT_ENTRIES must match this */
25073+
25074+#ifdef CONFIG_PAX_MEMORY_UDEREF
25075+ .quad 0x00cf93000000ffff /* __UDEREF_KERNEL_DS */
25076+#else
25077+ .quad 0x0 /* unused */
25078+#endif
25079+
25080+ /* zero the remaining page */
25081+ .fill PAGE_SIZE / 8 - GDT_ENTRIES,8,0
25082+ .endr
25083+
25084 .align 16
25085 .globl early_gdt_descr
25086 early_gdt_descr:
25087 .word GDT_ENTRIES*8-1
25088 early_gdt_descr_base:
25089- .quad INIT_PER_CPU_VAR(gdt_page)
25090+ .quad cpu_gdt_table
25091
25092 ENTRY(phys_base)
25093 /* This must match the first entry in level2_kernel_pgt */
25094@@ -534,8 +635,8 @@ NEXT_PAGE(kasan_zero_pud)
25095
25096
25097 #include "../../x86/xen/xen-head.S"
25098-
25099- __PAGE_ALIGNED_BSS
25100+
25101+ .section .rodata,"a",@progbits
25102 NEXT_PAGE(empty_zero_page)
25103 .skip PAGE_SIZE
25104
25105diff --git a/arch/x86/kernel/i386_ksyms_32.c b/arch/x86/kernel/i386_ksyms_32.c
25106index 05fd74f..c3548b1 100644
25107--- a/arch/x86/kernel/i386_ksyms_32.c
25108+++ b/arch/x86/kernel/i386_ksyms_32.c
25109@@ -20,8 +20,12 @@ extern void cmpxchg8b_emu(void);
25110 EXPORT_SYMBOL(cmpxchg8b_emu);
25111 #endif
25112
25113+EXPORT_SYMBOL_GPL(cpu_gdt_table);
25114+
25115 /* Networking helper routines. */
25116 EXPORT_SYMBOL(csum_partial_copy_generic);
25117+EXPORT_SYMBOL(csum_partial_copy_generic_to_user);
25118+EXPORT_SYMBOL(csum_partial_copy_generic_from_user);
25119
25120 EXPORT_SYMBOL(__get_user_1);
25121 EXPORT_SYMBOL(__get_user_2);
25122@@ -44,3 +48,11 @@ EXPORT_SYMBOL(___preempt_schedule);
25123 EXPORT_SYMBOL(___preempt_schedule_context);
25124 #endif
25125 #endif
25126+
25127+#ifdef CONFIG_PAX_KERNEXEC
25128+EXPORT_SYMBOL(__LOAD_PHYSICAL_ADDR);
25129+#endif
25130+
25131+#ifdef CONFIG_PAX_PER_CPU_PGD
25132+EXPORT_SYMBOL(cpu_pgd);
25133+#endif
25134diff --git a/arch/x86/kernel/i387.c b/arch/x86/kernel/i387.c
25135index f341d56..d9b527b 100644
25136--- a/arch/x86/kernel/i387.c
25137+++ b/arch/x86/kernel/i387.c
25138@@ -68,7 +68,7 @@ static inline bool interrupted_kernel_fpu_idle(void)
25139 static inline bool interrupted_user_mode(void)
25140 {
25141 struct pt_regs *regs = get_irq_regs();
25142- return regs && user_mode_vm(regs);
25143+ return regs && user_mode(regs);
25144 }
25145
25146 /*
25147diff --git a/arch/x86/kernel/i8259.c b/arch/x86/kernel/i8259.c
25148index e7cc537..67d7372 100644
25149--- a/arch/x86/kernel/i8259.c
25150+++ b/arch/x86/kernel/i8259.c
25151@@ -110,7 +110,7 @@ static int i8259A_irq_pending(unsigned int irq)
25152 static void make_8259A_irq(unsigned int irq)
25153 {
25154 disable_irq_nosync(irq);
25155- io_apic_irqs &= ~(1<<irq);
25156+ io_apic_irqs &= ~(1UL<<irq);
25157 irq_set_chip_and_handler(irq, &i8259A_chip, handle_level_irq);
25158 enable_irq(irq);
25159 }
25160@@ -208,7 +208,7 @@ spurious_8259A_irq:
25161 "spurious 8259A interrupt: IRQ%d.\n", irq);
25162 spurious_irq_mask |= irqmask;
25163 }
25164- atomic_inc(&irq_err_count);
25165+ atomic_inc_unchecked(&irq_err_count);
25166 /*
25167 * Theoretically we do not have to handle this IRQ,
25168 * but in Linux this does not cause problems and is
25169@@ -349,14 +349,16 @@ static void init_8259A(int auto_eoi)
25170 /* (slave's support for AEOI in flat mode is to be investigated) */
25171 outb_pic(SLAVE_ICW4_DEFAULT, PIC_SLAVE_IMR);
25172
25173+ pax_open_kernel();
25174 if (auto_eoi)
25175 /*
25176 * In AEOI mode we just have to mask the interrupt
25177 * when acking.
25178 */
25179- i8259A_chip.irq_mask_ack = disable_8259A_irq;
25180+ *(void **)&i8259A_chip.irq_mask_ack = disable_8259A_irq;
25181 else
25182- i8259A_chip.irq_mask_ack = mask_and_ack_8259A;
25183+ *(void **)&i8259A_chip.irq_mask_ack = mask_and_ack_8259A;
25184+ pax_close_kernel();
25185
25186 udelay(100); /* wait for 8259A to initialize */
25187
25188diff --git a/arch/x86/kernel/io_delay.c b/arch/x86/kernel/io_delay.c
25189index a979b5b..1d6db75 100644
25190--- a/arch/x86/kernel/io_delay.c
25191+++ b/arch/x86/kernel/io_delay.c
25192@@ -58,7 +58,7 @@ static int __init dmi_io_delay_0xed_port(const struct dmi_system_id *id)
25193 * Quirk table for systems that misbehave (lock up, etc.) if port
25194 * 0x80 is used:
25195 */
25196-static struct dmi_system_id __initdata io_delay_0xed_port_dmi_table[] = {
25197+static const struct dmi_system_id __initconst io_delay_0xed_port_dmi_table[] = {
25198 {
25199 .callback = dmi_io_delay_0xed_port,
25200 .ident = "Compaq Presario V6000",
25201diff --git a/arch/x86/kernel/ioport.c b/arch/x86/kernel/ioport.c
25202index 4ddaf66..49d5c18 100644
25203--- a/arch/x86/kernel/ioport.c
25204+++ b/arch/x86/kernel/ioport.c
25205@@ -6,6 +6,7 @@
25206 #include <linux/sched.h>
25207 #include <linux/kernel.h>
25208 #include <linux/capability.h>
25209+#include <linux/security.h>
25210 #include <linux/errno.h>
25211 #include <linux/types.h>
25212 #include <linux/ioport.h>
25213@@ -30,6 +31,12 @@ asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int turn_on)
25214 return -EINVAL;
25215 if (turn_on && !capable(CAP_SYS_RAWIO))
25216 return -EPERM;
25217+#ifdef CONFIG_GRKERNSEC_IO
25218+ if (turn_on && grsec_disable_privio) {
25219+ gr_handle_ioperm();
25220+ return -ENODEV;
25221+ }
25222+#endif
25223
25224 /*
25225 * If it's the first ioperm() call in this thread's lifetime, set the
25226@@ -54,7 +61,7 @@ asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int turn_on)
25227 * because the ->io_bitmap_max value must match the bitmap
25228 * contents:
25229 */
25230- tss = &per_cpu(init_tss, get_cpu());
25231+ tss = init_tss + get_cpu();
25232
25233 if (turn_on)
25234 bitmap_clear(t->io_bitmap_ptr, from, num);
25235@@ -105,6 +112,12 @@ SYSCALL_DEFINE1(iopl, unsigned int, level)
25236 if (level > old) {
25237 if (!capable(CAP_SYS_RAWIO))
25238 return -EPERM;
25239+#ifdef CONFIG_GRKERNSEC_IO
25240+ if (grsec_disable_privio) {
25241+ gr_handle_iopl();
25242+ return -ENODEV;
25243+ }
25244+#endif
25245 }
25246 regs->flags = (regs->flags & ~X86_EFLAGS_IOPL) | (level << 12);
25247 t->iopl = level << 12;
25248diff --git a/arch/x86/kernel/irq.c b/arch/x86/kernel/irq.c
25249index 67b1cbe..6ad4cbc 100644
25250--- a/arch/x86/kernel/irq.c
25251+++ b/arch/x86/kernel/irq.c
25252@@ -22,7 +22,7 @@
25253 #define CREATE_TRACE_POINTS
25254 #include <asm/trace/irq_vectors.h>
25255
25256-atomic_t irq_err_count;
25257+atomic_unchecked_t irq_err_count;
25258
25259 /* Function pointer for generic interrupt vector handling */
25260 void (*x86_platform_ipi_callback)(void) = NULL;
25261@@ -132,9 +132,9 @@ int arch_show_interrupts(struct seq_file *p, int prec)
25262 seq_printf(p, "%10u ", irq_stats(j)->irq_hv_callback_count);
25263 seq_puts(p, " Hypervisor callback interrupts\n");
25264 #endif
25265- seq_printf(p, "%*s: %10u\n", prec, "ERR", atomic_read(&irq_err_count));
25266+ seq_printf(p, "%*s: %10u\n", prec, "ERR", atomic_read_unchecked(&irq_err_count));
25267 #if defined(CONFIG_X86_IO_APIC)
25268- seq_printf(p, "%*s: %10u\n", prec, "MIS", atomic_read(&irq_mis_count));
25269+ seq_printf(p, "%*s: %10u\n", prec, "MIS", atomic_read_unchecked(&irq_mis_count));
25270 #endif
25271 return 0;
25272 }
25273@@ -174,7 +174,7 @@ u64 arch_irq_stat_cpu(unsigned int cpu)
25274
25275 u64 arch_irq_stat(void)
25276 {
25277- u64 sum = atomic_read(&irq_err_count);
25278+ u64 sum = atomic_read_unchecked(&irq_err_count);
25279 return sum;
25280 }
25281
25282diff --git a/arch/x86/kernel/irq_32.c b/arch/x86/kernel/irq_32.c
25283index 28d28f5..e6cc9ae 100644
25284--- a/arch/x86/kernel/irq_32.c
25285+++ b/arch/x86/kernel/irq_32.c
25286@@ -29,6 +29,8 @@ EXPORT_PER_CPU_SYMBOL(irq_regs);
25287
25288 #ifdef CONFIG_DEBUG_STACKOVERFLOW
25289
25290+extern void gr_handle_kernel_exploit(void);
25291+
25292 int sysctl_panic_on_stackoverflow __read_mostly;
25293
25294 /* Debugging check for stack overflow: is there less than 1KB free? */
25295@@ -39,13 +41,14 @@ static int check_stack_overflow(void)
25296 __asm__ __volatile__("andl %%esp,%0" :
25297 "=r" (sp) : "0" (THREAD_SIZE - 1));
25298
25299- return sp < (sizeof(struct thread_info) + STACK_WARN);
25300+ return sp < STACK_WARN;
25301 }
25302
25303 static void print_stack_overflow(void)
25304 {
25305 printk(KERN_WARNING "low stack detected by irq handler\n");
25306 dump_stack();
25307+ gr_handle_kernel_exploit();
25308 if (sysctl_panic_on_stackoverflow)
25309 panic("low stack detected by irq handler - check messages\n");
25310 }
25311@@ -77,10 +80,9 @@ static inline void *current_stack(void)
25312 static inline int
25313 execute_on_irq_stack(int overflow, struct irq_desc *desc, int irq)
25314 {
25315- struct irq_stack *curstk, *irqstk;
25316+ struct irq_stack *irqstk;
25317 u32 *isp, *prev_esp, arg1, arg2;
25318
25319- curstk = (struct irq_stack *) current_stack();
25320 irqstk = __this_cpu_read(hardirq_stack);
25321
25322 /*
25323@@ -89,15 +91,19 @@ execute_on_irq_stack(int overflow, struct irq_desc *desc, int irq)
25324 * handler) we can't do that and just have to keep using the
25325 * current stack (which is the irq stack already after all)
25326 */
25327- if (unlikely(curstk == irqstk))
25328+ if (unlikely((void *)current_stack_pointer - (void *)irqstk < THREAD_SIZE))
25329 return 0;
25330
25331- isp = (u32 *) ((char *)irqstk + sizeof(*irqstk));
25332+ isp = (u32 *) ((char *)irqstk + sizeof(*irqstk) - 8);
25333
25334 /* Save the next esp at the bottom of the stack */
25335 prev_esp = (u32 *)irqstk;
25336 *prev_esp = current_stack_pointer();
25337
25338+#ifdef CONFIG_PAX_MEMORY_UDEREF
25339+ __set_fs(MAKE_MM_SEG(0));
25340+#endif
25341+
25342 if (unlikely(overflow))
25343 call_on_stack(print_stack_overflow, isp);
25344
25345@@ -108,6 +114,11 @@ execute_on_irq_stack(int overflow, struct irq_desc *desc, int irq)
25346 : "0" (irq), "1" (desc), "2" (isp),
25347 "D" (desc->handle_irq)
25348 : "memory", "cc", "ecx");
25349+
25350+#ifdef CONFIG_PAX_MEMORY_UDEREF
25351+ __set_fs(current_thread_info()->addr_limit);
25352+#endif
25353+
25354 return 1;
25355 }
25356
25357@@ -116,32 +127,18 @@ execute_on_irq_stack(int overflow, struct irq_desc *desc, int irq)
25358 */
25359 void irq_ctx_init(int cpu)
25360 {
25361- struct irq_stack *irqstk;
25362-
25363 if (per_cpu(hardirq_stack, cpu))
25364 return;
25365
25366- irqstk = page_address(alloc_pages_node(cpu_to_node(cpu),
25367- THREADINFO_GFP,
25368- THREAD_SIZE_ORDER));
25369- per_cpu(hardirq_stack, cpu) = irqstk;
25370-
25371- irqstk = page_address(alloc_pages_node(cpu_to_node(cpu),
25372- THREADINFO_GFP,
25373- THREAD_SIZE_ORDER));
25374- per_cpu(softirq_stack, cpu) = irqstk;
25375-
25376- printk(KERN_DEBUG "CPU %u irqstacks, hard=%p soft=%p\n",
25377- cpu, per_cpu(hardirq_stack, cpu), per_cpu(softirq_stack, cpu));
25378+ per_cpu(hardirq_stack, cpu) = page_address(alloc_pages_node(cpu_to_node(cpu), THREADINFO_GFP, THREAD_SIZE_ORDER));
25379+ per_cpu(softirq_stack, cpu) = page_address(alloc_pages_node(cpu_to_node(cpu), THREADINFO_GFP, THREAD_SIZE_ORDER));
25380 }
25381
25382 void do_softirq_own_stack(void)
25383 {
25384- struct thread_info *curstk;
25385 struct irq_stack *irqstk;
25386 u32 *isp, *prev_esp;
25387
25388- curstk = current_stack();
25389 irqstk = __this_cpu_read(softirq_stack);
25390
25391 /* build the stack frame on the softirq stack */
25392@@ -151,7 +148,16 @@ void do_softirq_own_stack(void)
25393 prev_esp = (u32 *)irqstk;
25394 *prev_esp = current_stack_pointer();
25395
25396+#ifdef CONFIG_PAX_MEMORY_UDEREF
25397+ __set_fs(MAKE_MM_SEG(0));
25398+#endif
25399+
25400 call_on_stack(__do_softirq, isp);
25401+
25402+#ifdef CONFIG_PAX_MEMORY_UDEREF
25403+ __set_fs(current_thread_info()->addr_limit);
25404+#endif
25405+
25406 }
25407
25408 bool handle_irq(unsigned irq, struct pt_regs *regs)
25409@@ -165,7 +171,7 @@ bool handle_irq(unsigned irq, struct pt_regs *regs)
25410 if (unlikely(!desc))
25411 return false;
25412
25413- if (user_mode_vm(regs) || !execute_on_irq_stack(overflow, desc, irq)) {
25414+ if (user_mode(regs) || !execute_on_irq_stack(overflow, desc, irq)) {
25415 if (unlikely(overflow))
25416 print_stack_overflow();
25417 desc->handle_irq(irq, desc);
25418diff --git a/arch/x86/kernel/irq_64.c b/arch/x86/kernel/irq_64.c
25419index e4b503d..824fce8 100644
25420--- a/arch/x86/kernel/irq_64.c
25421+++ b/arch/x86/kernel/irq_64.c
25422@@ -26,6 +26,8 @@ EXPORT_PER_CPU_SYMBOL(irq_stat);
25423 DEFINE_PER_CPU(struct pt_regs *, irq_regs);
25424 EXPORT_PER_CPU_SYMBOL(irq_regs);
25425
25426+extern void gr_handle_kernel_exploit(void);
25427+
25428 int sysctl_panic_on_stackoverflow;
25429
25430 /*
25431@@ -44,7 +46,7 @@ static inline void stack_overflow_check(struct pt_regs *regs)
25432 u64 estack_top, estack_bottom;
25433 u64 curbase = (u64)task_stack_page(current);
25434
25435- if (user_mode_vm(regs))
25436+ if (user_mode(regs))
25437 return;
25438
25439 if (regs->sp >= curbase + sizeof(struct thread_info) +
25440@@ -69,6 +71,8 @@ static inline void stack_overflow_check(struct pt_regs *regs)
25441 irq_stack_top, irq_stack_bottom,
25442 estack_top, estack_bottom);
25443
25444+ gr_handle_kernel_exploit();
25445+
25446 if (sysctl_panic_on_stackoverflow)
25447 panic("low stack detected by irq handler - check messages\n");
25448 #endif
25449diff --git a/arch/x86/kernel/jump_label.c b/arch/x86/kernel/jump_label.c
25450index 26d5a55..a01160a 100644
25451--- a/arch/x86/kernel/jump_label.c
25452+++ b/arch/x86/kernel/jump_label.c
25453@@ -51,7 +51,7 @@ static void __jump_label_transform(struct jump_entry *entry,
25454 * Jump label is enabled for the first time.
25455 * So we expect a default_nop...
25456 */
25457- if (unlikely(memcmp((void *)entry->code, default_nop, 5)
25458+ if (unlikely(memcmp((void *)ktla_ktva(entry->code), default_nop, 5)
25459 != 0))
25460 bug_at((void *)entry->code, __LINE__);
25461 } else {
25462@@ -59,7 +59,7 @@ static void __jump_label_transform(struct jump_entry *entry,
25463 * ...otherwise expect an ideal_nop. Otherwise
25464 * something went horribly wrong.
25465 */
25466- if (unlikely(memcmp((void *)entry->code, ideal_nop, 5)
25467+ if (unlikely(memcmp((void *)ktla_ktva(entry->code), ideal_nop, 5)
25468 != 0))
25469 bug_at((void *)entry->code, __LINE__);
25470 }
25471@@ -75,13 +75,13 @@ static void __jump_label_transform(struct jump_entry *entry,
25472 * are converting the default nop to the ideal nop.
25473 */
25474 if (init) {
25475- if (unlikely(memcmp((void *)entry->code, default_nop, 5) != 0))
25476+ if (unlikely(memcmp((void *)ktla_ktva(entry->code), default_nop, 5) != 0))
25477 bug_at((void *)entry->code, __LINE__);
25478 } else {
25479 code.jump = 0xe9;
25480 code.offset = entry->target -
25481 (entry->code + JUMP_LABEL_NOP_SIZE);
25482- if (unlikely(memcmp((void *)entry->code, &code, 5) != 0))
25483+ if (unlikely(memcmp((void *)ktla_ktva(entry->code), &code, 5) != 0))
25484 bug_at((void *)entry->code, __LINE__);
25485 }
25486 memcpy(&code, ideal_nops[NOP_ATOMIC5], JUMP_LABEL_NOP_SIZE);
25487diff --git a/arch/x86/kernel/kgdb.c b/arch/x86/kernel/kgdb.c
25488index 25ecd56..e12482f 100644
25489--- a/arch/x86/kernel/kgdb.c
25490+++ b/arch/x86/kernel/kgdb.c
25491@@ -126,11 +126,11 @@ char *dbg_get_reg(int regno, void *mem, struct pt_regs *regs)
25492 #ifdef CONFIG_X86_32
25493 switch (regno) {
25494 case GDB_SS:
25495- if (!user_mode_vm(regs))
25496+ if (!user_mode(regs))
25497 *(unsigned long *)mem = __KERNEL_DS;
25498 break;
25499 case GDB_SP:
25500- if (!user_mode_vm(regs))
25501+ if (!user_mode(regs))
25502 *(unsigned long *)mem = kernel_stack_pointer(regs);
25503 break;
25504 case GDB_GS:
25505@@ -228,7 +228,10 @@ static void kgdb_correct_hw_break(void)
25506 bp->attr.bp_addr = breakinfo[breakno].addr;
25507 bp->attr.bp_len = breakinfo[breakno].len;
25508 bp->attr.bp_type = breakinfo[breakno].type;
25509- info->address = breakinfo[breakno].addr;
25510+ if (breakinfo[breakno].type == X86_BREAKPOINT_EXECUTE)
25511+ info->address = ktla_ktva(breakinfo[breakno].addr);
25512+ else
25513+ info->address = breakinfo[breakno].addr;
25514 info->len = breakinfo[breakno].len;
25515 info->type = breakinfo[breakno].type;
25516 val = arch_install_hw_breakpoint(bp);
25517@@ -475,12 +478,12 @@ int kgdb_arch_handle_exception(int e_vector, int signo, int err_code,
25518 case 'k':
25519 /* clear the trace bit */
25520 linux_regs->flags &= ~X86_EFLAGS_TF;
25521- atomic_set(&kgdb_cpu_doing_single_step, -1);
25522+ atomic_set_unchecked(&kgdb_cpu_doing_single_step, -1);
25523
25524 /* set the trace bit if we're stepping */
25525 if (remcomInBuffer[0] == 's') {
25526 linux_regs->flags |= X86_EFLAGS_TF;
25527- atomic_set(&kgdb_cpu_doing_single_step,
25528+ atomic_set_unchecked(&kgdb_cpu_doing_single_step,
25529 raw_smp_processor_id());
25530 }
25531
25532@@ -545,7 +548,7 @@ static int __kgdb_notify(struct die_args *args, unsigned long cmd)
25533
25534 switch (cmd) {
25535 case DIE_DEBUG:
25536- if (atomic_read(&kgdb_cpu_doing_single_step) != -1) {
25537+ if (atomic_read_unchecked(&kgdb_cpu_doing_single_step) != -1) {
25538 if (user_mode(regs))
25539 return single_step_cont(regs, args);
25540 break;
25541@@ -750,11 +753,11 @@ int kgdb_arch_set_breakpoint(struct kgdb_bkpt *bpt)
25542 #endif /* CONFIG_DEBUG_RODATA */
25543
25544 bpt->type = BP_BREAKPOINT;
25545- err = probe_kernel_read(bpt->saved_instr, (char *)bpt->bpt_addr,
25546+ err = probe_kernel_read(bpt->saved_instr, ktla_ktva((char *)bpt->bpt_addr),
25547 BREAK_INSTR_SIZE);
25548 if (err)
25549 return err;
25550- err = probe_kernel_write((char *)bpt->bpt_addr,
25551+ err = probe_kernel_write(ktla_ktva((char *)bpt->bpt_addr),
25552 arch_kgdb_ops.gdb_bpt_instr, BREAK_INSTR_SIZE);
25553 #ifdef CONFIG_DEBUG_RODATA
25554 if (!err)
25555@@ -767,7 +770,7 @@ int kgdb_arch_set_breakpoint(struct kgdb_bkpt *bpt)
25556 return -EBUSY;
25557 text_poke((void *)bpt->bpt_addr, arch_kgdb_ops.gdb_bpt_instr,
25558 BREAK_INSTR_SIZE);
25559- err = probe_kernel_read(opc, (char *)bpt->bpt_addr, BREAK_INSTR_SIZE);
25560+ err = probe_kernel_read(opc, ktla_ktva((char *)bpt->bpt_addr), BREAK_INSTR_SIZE);
25561 if (err)
25562 return err;
25563 if (memcmp(opc, arch_kgdb_ops.gdb_bpt_instr, BREAK_INSTR_SIZE))
25564@@ -792,13 +795,13 @@ int kgdb_arch_remove_breakpoint(struct kgdb_bkpt *bpt)
25565 if (mutex_is_locked(&text_mutex))
25566 goto knl_write;
25567 text_poke((void *)bpt->bpt_addr, bpt->saved_instr, BREAK_INSTR_SIZE);
25568- err = probe_kernel_read(opc, (char *)bpt->bpt_addr, BREAK_INSTR_SIZE);
25569+ err = probe_kernel_read(opc, ktla_ktva((char *)bpt->bpt_addr), BREAK_INSTR_SIZE);
25570 if (err || memcmp(opc, bpt->saved_instr, BREAK_INSTR_SIZE))
25571 goto knl_write;
25572 return err;
25573 knl_write:
25574 #endif /* CONFIG_DEBUG_RODATA */
25575- return probe_kernel_write((char *)bpt->bpt_addr,
25576+ return probe_kernel_write(ktla_ktva((char *)bpt->bpt_addr),
25577 (char *)bpt->saved_instr, BREAK_INSTR_SIZE);
25578 }
25579
25580diff --git a/arch/x86/kernel/kprobes/core.c b/arch/x86/kernel/kprobes/core.c
25581index 03189d8..4705700 100644
25582--- a/arch/x86/kernel/kprobes/core.c
25583+++ b/arch/x86/kernel/kprobes/core.c
25584@@ -120,9 +120,12 @@ __synthesize_relative_insn(void *from, void *to, u8 op)
25585 s32 raddr;
25586 } __packed *insn;
25587
25588- insn = (struct __arch_relative_insn *)from;
25589+ insn = (struct __arch_relative_insn *)ktla_ktva(from);
25590+
25591+ pax_open_kernel();
25592 insn->raddr = (s32)((long)(to) - ((long)(from) + 5));
25593 insn->op = op;
25594+ pax_close_kernel();
25595 }
25596
25597 /* Insert a jump instruction at address 'from', which jumps to address 'to'.*/
25598@@ -168,7 +171,7 @@ int can_boost(kprobe_opcode_t *opcodes)
25599 kprobe_opcode_t opcode;
25600 kprobe_opcode_t *orig_opcodes = opcodes;
25601
25602- if (search_exception_tables((unsigned long)opcodes))
25603+ if (search_exception_tables(ktva_ktla((unsigned long)opcodes)))
25604 return 0; /* Page fault may occur on this address. */
25605
25606 retry:
25607@@ -260,12 +263,12 @@ __recover_probed_insn(kprobe_opcode_t *buf, unsigned long addr)
25608 * Fortunately, we know that the original code is the ideal 5-byte
25609 * long NOP.
25610 */
25611- memcpy(buf, (void *)addr, MAX_INSN_SIZE * sizeof(kprobe_opcode_t));
25612+ memcpy(buf, (void *)ktla_ktva(addr), MAX_INSN_SIZE * sizeof(kprobe_opcode_t));
25613 if (faddr)
25614 memcpy(buf, ideal_nops[NOP_ATOMIC5], 5);
25615 else
25616 buf[0] = kp->opcode;
25617- return (unsigned long)buf;
25618+ return ktva_ktla((unsigned long)buf);
25619 }
25620
25621 /*
25622@@ -367,7 +370,9 @@ int __copy_instruction(u8 *dest, u8 *src)
25623 /* Another subsystem puts a breakpoint, failed to recover */
25624 if (insn.opcode.bytes[0] == BREAKPOINT_INSTRUCTION)
25625 return 0;
25626+ pax_open_kernel();
25627 memcpy(dest, insn.kaddr, length);
25628+ pax_close_kernel();
25629
25630 #ifdef CONFIG_X86_64
25631 if (insn_rip_relative(&insn)) {
25632@@ -394,7 +399,9 @@ int __copy_instruction(u8 *dest, u8 *src)
25633 return 0;
25634 }
25635 disp = (u8 *) dest + insn_offset_displacement(&insn);
25636+ pax_open_kernel();
25637 *(s32 *) disp = (s32) newdisp;
25638+ pax_close_kernel();
25639 }
25640 #endif
25641 return length;
25642@@ -536,7 +543,7 @@ static void setup_singlestep(struct kprobe *p, struct pt_regs *regs,
25643 * nor set current_kprobe, because it doesn't use single
25644 * stepping.
25645 */
25646- regs->ip = (unsigned long)p->ainsn.insn;
25647+ regs->ip = ktva_ktla((unsigned long)p->ainsn.insn);
25648 preempt_enable_no_resched();
25649 return;
25650 }
25651@@ -553,9 +560,9 @@ static void setup_singlestep(struct kprobe *p, struct pt_regs *regs,
25652 regs->flags &= ~X86_EFLAGS_IF;
25653 /* single step inline if the instruction is an int3 */
25654 if (p->opcode == BREAKPOINT_INSTRUCTION)
25655- regs->ip = (unsigned long)p->addr;
25656+ regs->ip = ktla_ktva((unsigned long)p->addr);
25657 else
25658- regs->ip = (unsigned long)p->ainsn.insn;
25659+ regs->ip = ktva_ktla((unsigned long)p->ainsn.insn);
25660 }
25661 NOKPROBE_SYMBOL(setup_singlestep);
25662
25663@@ -605,7 +612,7 @@ int kprobe_int3_handler(struct pt_regs *regs)
25664 struct kprobe *p;
25665 struct kprobe_ctlblk *kcb;
25666
25667- if (user_mode_vm(regs))
25668+ if (user_mode(regs))
25669 return 0;
25670
25671 addr = (kprobe_opcode_t *)(regs->ip - sizeof(kprobe_opcode_t));
25672@@ -640,7 +647,7 @@ int kprobe_int3_handler(struct pt_regs *regs)
25673 setup_singlestep(p, regs, kcb, 0);
25674 return 1;
25675 }
25676- } else if (*addr != BREAKPOINT_INSTRUCTION) {
25677+ } else if (*(kprobe_opcode_t *)ktla_ktva((unsigned long)addr) != BREAKPOINT_INSTRUCTION) {
25678 /*
25679 * The breakpoint instruction was removed right
25680 * after we hit it. Another cpu has removed
25681@@ -687,6 +694,9 @@ static void __used kretprobe_trampoline_holder(void)
25682 " movq %rax, 152(%rsp)\n"
25683 RESTORE_REGS_STRING
25684 " popfq\n"
25685+#ifdef KERNEXEC_PLUGIN
25686+ " btsq $63,(%rsp)\n"
25687+#endif
25688 #else
25689 " pushf\n"
25690 SAVE_REGS_STRING
25691@@ -827,7 +837,7 @@ static void resume_execution(struct kprobe *p, struct pt_regs *regs,
25692 struct kprobe_ctlblk *kcb)
25693 {
25694 unsigned long *tos = stack_addr(regs);
25695- unsigned long copy_ip = (unsigned long)p->ainsn.insn;
25696+ unsigned long copy_ip = ktva_ktla((unsigned long)p->ainsn.insn);
25697 unsigned long orig_ip = (unsigned long)p->addr;
25698 kprobe_opcode_t *insn = p->ainsn.insn;
25699
25700@@ -1010,7 +1020,7 @@ int kprobe_exceptions_notify(struct notifier_block *self, unsigned long val,
25701 struct die_args *args = data;
25702 int ret = NOTIFY_DONE;
25703
25704- if (args->regs && user_mode_vm(args->regs))
25705+ if (args->regs && user_mode(args->regs))
25706 return ret;
25707
25708 if (val == DIE_GPF) {
25709diff --git a/arch/x86/kernel/kprobes/opt.c b/arch/x86/kernel/kprobes/opt.c
25710index 7b3b9d1..e2478b91 100644
25711--- a/arch/x86/kernel/kprobes/opt.c
25712+++ b/arch/x86/kernel/kprobes/opt.c
25713@@ -79,6 +79,7 @@ found:
25714 /* Insert a move instruction which sets a pointer to eax/rdi (1st arg). */
25715 static void synthesize_set_arg1(kprobe_opcode_t *addr, unsigned long val)
25716 {
25717+ pax_open_kernel();
25718 #ifdef CONFIG_X86_64
25719 *addr++ = 0x48;
25720 *addr++ = 0xbf;
25721@@ -86,6 +87,7 @@ static void synthesize_set_arg1(kprobe_opcode_t *addr, unsigned long val)
25722 *addr++ = 0xb8;
25723 #endif
25724 *(unsigned long *)addr = val;
25725+ pax_close_kernel();
25726 }
25727
25728 asm (
25729@@ -342,7 +344,7 @@ int arch_prepare_optimized_kprobe(struct optimized_kprobe *op,
25730 * Verify if the address gap is in 2GB range, because this uses
25731 * a relative jump.
25732 */
25733- rel = (long)op->optinsn.insn - (long)op->kp.addr + RELATIVEJUMP_SIZE;
25734+ rel = (long)op->optinsn.insn - ktla_ktva((long)op->kp.addr) + RELATIVEJUMP_SIZE;
25735 if (abs(rel) > 0x7fffffff) {
25736 __arch_remove_optimized_kprobe(op, 0);
25737 return -ERANGE;
25738@@ -359,16 +361,18 @@ int arch_prepare_optimized_kprobe(struct optimized_kprobe *op,
25739 op->optinsn.size = ret;
25740
25741 /* Copy arch-dep-instance from template */
25742- memcpy(buf, &optprobe_template_entry, TMPL_END_IDX);
25743+ pax_open_kernel();
25744+ memcpy(buf, ktla_ktva(&optprobe_template_entry), TMPL_END_IDX);
25745+ pax_close_kernel();
25746
25747 /* Set probe information */
25748 synthesize_set_arg1(buf + TMPL_MOVE_IDX, (unsigned long)op);
25749
25750 /* Set probe function call */
25751- synthesize_relcall(buf + TMPL_CALL_IDX, optimized_callback);
25752+ synthesize_relcall(ktva_ktla(buf) + TMPL_CALL_IDX, optimized_callback);
25753
25754 /* Set returning jmp instruction at the tail of out-of-line buffer */
25755- synthesize_reljump(buf + TMPL_END_IDX + op->optinsn.size,
25756+ synthesize_reljump(ktva_ktla(buf) + TMPL_END_IDX + op->optinsn.size,
25757 (u8 *)op->kp.addr + op->optinsn.size);
25758
25759 flush_icache_range((unsigned long) buf,
25760@@ -393,7 +397,7 @@ void arch_optimize_kprobes(struct list_head *oplist)
25761 WARN_ON(kprobe_disabled(&op->kp));
25762
25763 /* Backup instructions which will be replaced by jump address */
25764- memcpy(op->optinsn.copied_insn, op->kp.addr + INT3_SIZE,
25765+ memcpy(op->optinsn.copied_insn, ktla_ktva(op->kp.addr) + INT3_SIZE,
25766 RELATIVE_ADDR_SIZE);
25767
25768 insn_buf[0] = RELATIVEJUMP_OPCODE;
25769@@ -441,7 +445,7 @@ int setup_detour_execution(struct kprobe *p, struct pt_regs *regs, int reenter)
25770 /* This kprobe is really able to run optimized path. */
25771 op = container_of(p, struct optimized_kprobe, kp);
25772 /* Detour through copied instructions */
25773- regs->ip = (unsigned long)op->optinsn.insn + TMPL_END_IDX;
25774+ regs->ip = ktva_ktla((unsigned long)op->optinsn.insn) + TMPL_END_IDX;
25775 if (!reenter)
25776 reset_current_kprobe();
25777 preempt_enable_no_resched();
25778diff --git a/arch/x86/kernel/ksysfs.c b/arch/x86/kernel/ksysfs.c
25779index c2bedae..25e7ab60 100644
25780--- a/arch/x86/kernel/ksysfs.c
25781+++ b/arch/x86/kernel/ksysfs.c
25782@@ -184,7 +184,7 @@ out:
25783
25784 static struct kobj_attribute type_attr = __ATTR_RO(type);
25785
25786-static struct bin_attribute data_attr = {
25787+static bin_attribute_no_const data_attr __read_only = {
25788 .attr = {
25789 .name = "data",
25790 .mode = S_IRUGO,
25791diff --git a/arch/x86/kernel/ldt.c b/arch/x86/kernel/ldt.c
25792index c37886d..3f425e3 100644
25793--- a/arch/x86/kernel/ldt.c
25794+++ b/arch/x86/kernel/ldt.c
25795@@ -66,13 +66,13 @@ static int alloc_ldt(mm_context_t *pc, int mincount, int reload)
25796 if (reload) {
25797 #ifdef CONFIG_SMP
25798 preempt_disable();
25799- load_LDT(pc);
25800+ load_LDT_nolock(pc);
25801 if (!cpumask_equal(mm_cpumask(current->mm),
25802 cpumask_of(smp_processor_id())))
25803 smp_call_function(flush_ldt, current->mm, 1);
25804 preempt_enable();
25805 #else
25806- load_LDT(pc);
25807+ load_LDT_nolock(pc);
25808 #endif
25809 }
25810 if (oldsize) {
25811@@ -94,7 +94,7 @@ static inline int copy_ldt(mm_context_t *new, mm_context_t *old)
25812 return err;
25813
25814 for (i = 0; i < old->size; i++)
25815- write_ldt_entry(new->ldt, i, old->ldt + i * LDT_ENTRY_SIZE);
25816+ write_ldt_entry(new->ldt, i, old->ldt + i);
25817 return 0;
25818 }
25819
25820@@ -115,6 +115,24 @@ int init_new_context(struct task_struct *tsk, struct mm_struct *mm)
25821 retval = copy_ldt(&mm->context, &old_mm->context);
25822 mutex_unlock(&old_mm->context.lock);
25823 }
25824+
25825+ if (tsk == current) {
25826+ mm->context.vdso = 0;
25827+
25828+#ifdef CONFIG_X86_32
25829+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
25830+ mm->context.user_cs_base = 0UL;
25831+ mm->context.user_cs_limit = ~0UL;
25832+
25833+#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_SMP)
25834+ cpumask_clear(&mm->context.cpu_user_cs_mask);
25835+#endif
25836+
25837+#endif
25838+#endif
25839+
25840+ }
25841+
25842 return retval;
25843 }
25844
25845@@ -229,6 +247,13 @@ static int write_ldt(void __user *ptr, unsigned long bytecount, int oldmode)
25846 }
25847 }
25848
25849+#ifdef CONFIG_PAX_SEGMEXEC
25850+ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && (ldt_info.contents & MODIFY_LDT_CONTENTS_CODE)) {
25851+ error = -EINVAL;
25852+ goto out_unlock;
25853+ }
25854+#endif
25855+
25856 if (!IS_ENABLED(CONFIG_X86_16BIT) && !ldt_info.seg_32bit) {
25857 error = -EINVAL;
25858 goto out_unlock;
25859diff --git a/arch/x86/kernel/livepatch.c b/arch/x86/kernel/livepatch.c
25860index ff3c3101d..d7c0cd8 100644
25861--- a/arch/x86/kernel/livepatch.c
25862+++ b/arch/x86/kernel/livepatch.c
25863@@ -41,9 +41,10 @@ int klp_write_module_reloc(struct module *mod, unsigned long type,
25864 int ret, numpages, size = 4;
25865 bool readonly;
25866 unsigned long val;
25867- unsigned long core = (unsigned long)mod->module_core;
25868- unsigned long core_ro_size = mod->core_ro_size;
25869- unsigned long core_size = mod->core_size;
25870+ unsigned long core_rx = (unsigned long)mod->module_core_rx;
25871+ unsigned long core_rw = (unsigned long)mod->module_core_rw;
25872+ unsigned long core_size_rx = mod->core_size_rx;
25873+ unsigned long core_size_rw = mod->core_size_rw;
25874
25875 switch (type) {
25876 case R_X86_64_NONE:
25877@@ -66,11 +67,12 @@ int klp_write_module_reloc(struct module *mod, unsigned long type,
25878 return -EINVAL;
25879 }
25880
25881- if (loc < core || loc >= core + core_size)
25882+ if ((loc < core_rx || loc >= core_rx + core_size_rx) &&
25883+ (loc < core_rw || loc >= core_rw + core_size_rw))
25884 /* loc does not point to any symbol inside the module */
25885 return -EINVAL;
25886
25887- if (loc < core + core_ro_size)
25888+ if (loc < core_rx + core_size_rx)
25889 readonly = true;
25890 else
25891 readonly = false;
25892diff --git a/arch/x86/kernel/machine_kexec_32.c b/arch/x86/kernel/machine_kexec_32.c
25893index 469b23d..5449cfe 100644
25894--- a/arch/x86/kernel/machine_kexec_32.c
25895+++ b/arch/x86/kernel/machine_kexec_32.c
25896@@ -26,7 +26,7 @@
25897 #include <asm/cacheflush.h>
25898 #include <asm/debugreg.h>
25899
25900-static void set_idt(void *newidt, __u16 limit)
25901+static void set_idt(struct desc_struct *newidt, __u16 limit)
25902 {
25903 struct desc_ptr curidt;
25904
25905@@ -38,7 +38,7 @@ static void set_idt(void *newidt, __u16 limit)
25906 }
25907
25908
25909-static void set_gdt(void *newgdt, __u16 limit)
25910+static void set_gdt(struct desc_struct *newgdt, __u16 limit)
25911 {
25912 struct desc_ptr curgdt;
25913
25914@@ -216,7 +216,7 @@ void machine_kexec(struct kimage *image)
25915 }
25916
25917 control_page = page_address(image->control_code_page);
25918- memcpy(control_page, relocate_kernel, KEXEC_CONTROL_CODE_MAX_SIZE);
25919+ memcpy(control_page, (void *)ktla_ktva((unsigned long)relocate_kernel), KEXEC_CONTROL_CODE_MAX_SIZE);
25920
25921 relocate_kernel_ptr = control_page;
25922 page_list[PA_CONTROL_PAGE] = __pa(control_page);
25923diff --git a/arch/x86/kernel/mcount_64.S b/arch/x86/kernel/mcount_64.S
25924index 94ea120..4154cea 100644
25925--- a/arch/x86/kernel/mcount_64.S
25926+++ b/arch/x86/kernel/mcount_64.S
25927@@ -7,7 +7,7 @@
25928 #include <linux/linkage.h>
25929 #include <asm/ptrace.h>
25930 #include <asm/ftrace.h>
25931-
25932+#include <asm/alternative-asm.h>
25933
25934 .code64
25935 .section .entry.text, "ax"
25936@@ -148,8 +148,9 @@
25937 #ifdef CONFIG_DYNAMIC_FTRACE
25938
25939 ENTRY(function_hook)
25940+ pax_force_retaddr
25941 retq
25942-END(function_hook)
25943+ENDPROC(function_hook)
25944
25945 ENTRY(ftrace_caller)
25946 /* save_mcount_regs fills in first two parameters */
25947@@ -181,8 +182,9 @@ GLOBAL(ftrace_graph_call)
25948 #endif
25949
25950 GLOBAL(ftrace_stub)
25951+ pax_force_retaddr
25952 retq
25953-END(ftrace_caller)
25954+ENDPROC(ftrace_caller)
25955
25956 ENTRY(ftrace_regs_caller)
25957 /* Save the current flags before any operations that can change them */
25958@@ -253,7 +255,7 @@ GLOBAL(ftrace_regs_caller_end)
25959
25960 jmp ftrace_return
25961
25962-END(ftrace_regs_caller)
25963+ENDPROC(ftrace_regs_caller)
25964
25965
25966 #else /* ! CONFIG_DYNAMIC_FTRACE */
25967@@ -272,18 +274,20 @@ fgraph_trace:
25968 #endif
25969
25970 GLOBAL(ftrace_stub)
25971+ pax_force_retaddr
25972 retq
25973
25974 trace:
25975 /* save_mcount_regs fills in first two parameters */
25976 save_mcount_regs
25977
25978+ pax_force_fptr ftrace_trace_function
25979 call *ftrace_trace_function
25980
25981 restore_mcount_regs
25982
25983 jmp fgraph_trace
25984-END(function_hook)
25985+ENDPROC(function_hook)
25986 #endif /* CONFIG_DYNAMIC_FTRACE */
25987 #endif /* CONFIG_FUNCTION_TRACER */
25988
25989@@ -305,8 +309,9 @@ ENTRY(ftrace_graph_caller)
25990
25991 restore_mcount_regs
25992
25993+ pax_force_retaddr
25994 retq
25995-END(ftrace_graph_caller)
25996+ENDPROC(ftrace_graph_caller)
25997
25998 GLOBAL(return_to_handler)
25999 subq $24, %rsp
26000@@ -322,5 +327,7 @@ GLOBAL(return_to_handler)
26001 movq 8(%rsp), %rdx
26002 movq (%rsp), %rax
26003 addq $24, %rsp
26004+ pax_force_fptr %rdi
26005 jmp *%rdi
26006+ENDPROC(return_to_handler)
26007 #endif
26008diff --git a/arch/x86/kernel/module.c b/arch/x86/kernel/module.c
26009index d1ac80b..f593701 100644
26010--- a/arch/x86/kernel/module.c
26011+++ b/arch/x86/kernel/module.c
26012@@ -82,17 +82,17 @@ static unsigned long int get_module_load_offset(void)
26013 }
26014 #endif
26015
26016-void *module_alloc(unsigned long size)
26017+static inline void *__module_alloc(unsigned long size, pgprot_t prot)
26018 {
26019 void *p;
26020
26021- if (PAGE_ALIGN(size) > MODULES_LEN)
26022+ if (!size || PAGE_ALIGN(size) > MODULES_LEN)
26023 return NULL;
26024
26025 p = __vmalloc_node_range(size, MODULE_ALIGN,
26026 MODULES_VADDR + get_module_load_offset(),
26027- MODULES_END, GFP_KERNEL | __GFP_HIGHMEM,
26028- PAGE_KERNEL_EXEC, 0, NUMA_NO_NODE,
26029+ MODULES_END, GFP_KERNEL | __GFP_HIGHMEM | __GFP_ZERO,
26030+ prot, 0, NUMA_NO_NODE,
26031 __builtin_return_address(0));
26032 if (p && (kasan_module_alloc(p, size) < 0)) {
26033 vfree(p);
26034@@ -102,6 +102,51 @@ void *module_alloc(unsigned long size)
26035 return p;
26036 }
26037
26038+void *module_alloc(unsigned long size)
26039+{
26040+
26041+#ifdef CONFIG_PAX_KERNEXEC
26042+ return __module_alloc(size, PAGE_KERNEL);
26043+#else
26044+ return __module_alloc(size, PAGE_KERNEL_EXEC);
26045+#endif
26046+
26047+}
26048+
26049+#ifdef CONFIG_PAX_KERNEXEC
26050+#ifdef CONFIG_X86_32
26051+void *module_alloc_exec(unsigned long size)
26052+{
26053+ struct vm_struct *area;
26054+
26055+ if (size == 0)
26056+ return NULL;
26057+
26058+ area = __get_vm_area(size, VM_ALLOC, (unsigned long)&MODULES_EXEC_VADDR, (unsigned long)&MODULES_EXEC_END);
26059+return area ? area->addr : NULL;
26060+}
26061+EXPORT_SYMBOL(module_alloc_exec);
26062+
26063+void module_memfree_exec(void *module_region)
26064+{
26065+ vunmap(module_region);
26066+}
26067+EXPORT_SYMBOL(module_memfree_exec);
26068+#else
26069+void module_memfree_exec(void *module_region)
26070+{
26071+ module_memfree(module_region);
26072+}
26073+EXPORT_SYMBOL(module_memfree_exec);
26074+
26075+void *module_alloc_exec(unsigned long size)
26076+{
26077+ return __module_alloc(size, PAGE_KERNEL_RX);
26078+}
26079+EXPORT_SYMBOL(module_alloc_exec);
26080+#endif
26081+#endif
26082+
26083 #ifdef CONFIG_X86_32
26084 int apply_relocate(Elf32_Shdr *sechdrs,
26085 const char *strtab,
26086@@ -112,14 +157,16 @@ int apply_relocate(Elf32_Shdr *sechdrs,
26087 unsigned int i;
26088 Elf32_Rel *rel = (void *)sechdrs[relsec].sh_addr;
26089 Elf32_Sym *sym;
26090- uint32_t *location;
26091+ uint32_t *plocation, location;
26092
26093 DEBUGP("Applying relocate section %u to %u\n",
26094 relsec, sechdrs[relsec].sh_info);
26095 for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) {
26096 /* This is where to make the change */
26097- location = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr
26098- + rel[i].r_offset;
26099+ plocation = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr + rel[i].r_offset;
26100+ location = (uint32_t)plocation;
26101+ if (sechdrs[sechdrs[relsec].sh_info].sh_flags & SHF_EXECINSTR)
26102+ plocation = ktla_ktva((void *)plocation);
26103 /* This is the symbol it is referring to. Note that all
26104 undefined symbols have been resolved. */
26105 sym = (Elf32_Sym *)sechdrs[symindex].sh_addr
26106@@ -128,11 +175,15 @@ int apply_relocate(Elf32_Shdr *sechdrs,
26107 switch (ELF32_R_TYPE(rel[i].r_info)) {
26108 case R_386_32:
26109 /* We add the value into the location given */
26110- *location += sym->st_value;
26111+ pax_open_kernel();
26112+ *plocation += sym->st_value;
26113+ pax_close_kernel();
26114 break;
26115 case R_386_PC32:
26116 /* Add the value, subtract its position */
26117- *location += sym->st_value - (uint32_t)location;
26118+ pax_open_kernel();
26119+ *plocation += sym->st_value - location;
26120+ pax_close_kernel();
26121 break;
26122 default:
26123 pr_err("%s: Unknown relocation: %u\n",
26124@@ -177,21 +228,30 @@ int apply_relocate_add(Elf64_Shdr *sechdrs,
26125 case R_X86_64_NONE:
26126 break;
26127 case R_X86_64_64:
26128+ pax_open_kernel();
26129 *(u64 *)loc = val;
26130+ pax_close_kernel();
26131 break;
26132 case R_X86_64_32:
26133+ pax_open_kernel();
26134 *(u32 *)loc = val;
26135+ pax_close_kernel();
26136 if (val != *(u32 *)loc)
26137 goto overflow;
26138 break;
26139 case R_X86_64_32S:
26140+ pax_open_kernel();
26141 *(s32 *)loc = val;
26142+ pax_close_kernel();
26143 if ((s64)val != *(s32 *)loc)
26144 goto overflow;
26145 break;
26146 case R_X86_64_PC32:
26147 val -= (u64)loc;
26148+ pax_open_kernel();
26149 *(u32 *)loc = val;
26150+ pax_close_kernel();
26151+
26152 #if 0
26153 if ((s64)val != *(s32 *)loc)
26154 goto overflow;
26155diff --git a/arch/x86/kernel/msr.c b/arch/x86/kernel/msr.c
26156index 113e707..0a690e1 100644
26157--- a/arch/x86/kernel/msr.c
26158+++ b/arch/x86/kernel/msr.c
26159@@ -39,6 +39,7 @@
26160 #include <linux/notifier.h>
26161 #include <linux/uaccess.h>
26162 #include <linux/gfp.h>
26163+#include <linux/grsecurity.h>
26164
26165 #include <asm/processor.h>
26166 #include <asm/msr.h>
26167@@ -105,6 +106,11 @@ static ssize_t msr_write(struct file *file, const char __user *buf,
26168 int err = 0;
26169 ssize_t bytes = 0;
26170
26171+#ifdef CONFIG_GRKERNSEC_KMEM
26172+ gr_handle_msr_write();
26173+ return -EPERM;
26174+#endif
26175+
26176 if (count % 8)
26177 return -EINVAL; /* Invalid chunk size */
26178
26179@@ -152,6 +158,10 @@ static long msr_ioctl(struct file *file, unsigned int ioc, unsigned long arg)
26180 err = -EBADF;
26181 break;
26182 }
26183+#ifdef CONFIG_GRKERNSEC_KMEM
26184+ gr_handle_msr_write();
26185+ return -EPERM;
26186+#endif
26187 if (copy_from_user(&regs, uregs, sizeof regs)) {
26188 err = -EFAULT;
26189 break;
26190@@ -235,7 +245,7 @@ static int msr_class_cpu_callback(struct notifier_block *nfb,
26191 return notifier_from_errno(err);
26192 }
26193
26194-static struct notifier_block __refdata msr_class_cpu_notifier = {
26195+static struct notifier_block msr_class_cpu_notifier = {
26196 .notifier_call = msr_class_cpu_callback,
26197 };
26198
26199diff --git a/arch/x86/kernel/nmi.c b/arch/x86/kernel/nmi.c
26200index c3e985d..110a36a 100644
26201--- a/arch/x86/kernel/nmi.c
26202+++ b/arch/x86/kernel/nmi.c
26203@@ -98,16 +98,16 @@ fs_initcall(nmi_warning_debugfs);
26204
26205 static void nmi_max_handler(struct irq_work *w)
26206 {
26207- struct nmiaction *a = container_of(w, struct nmiaction, irq_work);
26208+ struct nmiwork *n = container_of(w, struct nmiwork, irq_work);
26209 int remainder_ns, decimal_msecs;
26210- u64 whole_msecs = ACCESS_ONCE(a->max_duration);
26211+ u64 whole_msecs = ACCESS_ONCE(n->max_duration);
26212
26213 remainder_ns = do_div(whole_msecs, (1000 * 1000));
26214 decimal_msecs = remainder_ns / 1000;
26215
26216 printk_ratelimited(KERN_INFO
26217 "INFO: NMI handler (%ps) took too long to run: %lld.%03d msecs\n",
26218- a->handler, whole_msecs, decimal_msecs);
26219+ n->action->handler, whole_msecs, decimal_msecs);
26220 }
26221
26222 static int nmi_handle(unsigned int type, struct pt_regs *regs, bool b2b)
26223@@ -134,11 +134,11 @@ static int nmi_handle(unsigned int type, struct pt_regs *regs, bool b2b)
26224 delta = sched_clock() - delta;
26225 trace_nmi_handler(a->handler, (int)delta, thishandled);
26226
26227- if (delta < nmi_longest_ns || delta < a->max_duration)
26228+ if (delta < nmi_longest_ns || delta < a->work->max_duration)
26229 continue;
26230
26231- a->max_duration = delta;
26232- irq_work_queue(&a->irq_work);
26233+ a->work->max_duration = delta;
26234+ irq_work_queue(&a->work->irq_work);
26235 }
26236
26237 rcu_read_unlock();
26238@@ -148,7 +148,7 @@ static int nmi_handle(unsigned int type, struct pt_regs *regs, bool b2b)
26239 }
26240 NOKPROBE_SYMBOL(nmi_handle);
26241
26242-int __register_nmi_handler(unsigned int type, struct nmiaction *action)
26243+int __register_nmi_handler(unsigned int type, const struct nmiaction *action)
26244 {
26245 struct nmi_desc *desc = nmi_to_desc(type);
26246 unsigned long flags;
26247@@ -156,7 +156,8 @@ int __register_nmi_handler(unsigned int type, struct nmiaction *action)
26248 if (!action->handler)
26249 return -EINVAL;
26250
26251- init_irq_work(&action->irq_work, nmi_max_handler);
26252+ action->work->action = action;
26253+ init_irq_work(&action->work->irq_work, nmi_max_handler);
26254
26255 spin_lock_irqsave(&desc->lock, flags);
26256
26257@@ -174,9 +175,9 @@ int __register_nmi_handler(unsigned int type, struct nmiaction *action)
26258 * event confuses some handlers (kdump uses this flag)
26259 */
26260 if (action->flags & NMI_FLAG_FIRST)
26261- list_add_rcu(&action->list, &desc->head);
26262+ pax_list_add_rcu((struct list_head *)&action->list, &desc->head);
26263 else
26264- list_add_tail_rcu(&action->list, &desc->head);
26265+ pax_list_add_tail_rcu((struct list_head *)&action->list, &desc->head);
26266
26267 spin_unlock_irqrestore(&desc->lock, flags);
26268 return 0;
26269@@ -199,7 +200,7 @@ void unregister_nmi_handler(unsigned int type, const char *name)
26270 if (!strcmp(n->name, name)) {
26271 WARN(in_nmi(),
26272 "Trying to free NMI (%s) from NMI context!\n", n->name);
26273- list_del_rcu(&n->list);
26274+ pax_list_del_rcu((struct list_head *)&n->list);
26275 break;
26276 }
26277 }
26278@@ -528,6 +529,17 @@ static inline void nmi_nesting_postprocess(void)
26279 dotraplinkage notrace void
26280 do_nmi(struct pt_regs *regs, long error_code)
26281 {
26282+
26283+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
26284+ if (!user_mode(regs)) {
26285+ unsigned long cs = regs->cs & 0xFFFF;
26286+ unsigned long ip = ktva_ktla(regs->ip);
26287+
26288+ if ((cs == __KERNEL_CS || cs == __KERNEXEC_KERNEL_CS) && ip <= (unsigned long)_etext)
26289+ regs->ip = ip;
26290+ }
26291+#endif
26292+
26293 nmi_nesting_preprocess(regs);
26294
26295 nmi_enter();
26296diff --git a/arch/x86/kernel/nmi_selftest.c b/arch/x86/kernel/nmi_selftest.c
26297index 6d9582e..f746287 100644
26298--- a/arch/x86/kernel/nmi_selftest.c
26299+++ b/arch/x86/kernel/nmi_selftest.c
26300@@ -43,7 +43,7 @@ static void __init init_nmi_testsuite(void)
26301 {
26302 /* trap all the unknown NMIs we may generate */
26303 register_nmi_handler(NMI_UNKNOWN, nmi_unk_cb, 0, "nmi_selftest_unk",
26304- __initdata);
26305+ __initconst);
26306 }
26307
26308 static void __init cleanup_nmi_testsuite(void)
26309@@ -66,7 +66,7 @@ static void __init test_nmi_ipi(struct cpumask *mask)
26310 unsigned long timeout;
26311
26312 if (register_nmi_handler(NMI_LOCAL, test_nmi_ipi_callback,
26313- NMI_FLAG_FIRST, "nmi_selftest", __initdata)) {
26314+ NMI_FLAG_FIRST, "nmi_selftest", __initconst)) {
26315 nmi_fail = FAILURE;
26316 return;
26317 }
26318diff --git a/arch/x86/kernel/paravirt-spinlocks.c b/arch/x86/kernel/paravirt-spinlocks.c
26319index bbb6c73..24a58ef 100644
26320--- a/arch/x86/kernel/paravirt-spinlocks.c
26321+++ b/arch/x86/kernel/paravirt-spinlocks.c
26322@@ -8,7 +8,7 @@
26323
26324 #include <asm/paravirt.h>
26325
26326-struct pv_lock_ops pv_lock_ops = {
26327+struct pv_lock_ops pv_lock_ops __read_only = {
26328 #ifdef CONFIG_SMP
26329 .lock_spinning = __PV_IS_CALLEE_SAVE(paravirt_nop),
26330 .unlock_kick = paravirt_nop,
26331diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c
26332index 548d25f..f8fb99c 100644
26333--- a/arch/x86/kernel/paravirt.c
26334+++ b/arch/x86/kernel/paravirt.c
26335@@ -56,6 +56,9 @@ u64 _paravirt_ident_64(u64 x)
26336 {
26337 return x;
26338 }
26339+#if defined(CONFIG_X86_32) && defined(CONFIG_X86_PAE)
26340+PV_CALLEE_SAVE_REGS_THUNK(_paravirt_ident_64);
26341+#endif
26342
26343 void __init default_banner(void)
26344 {
26345@@ -142,16 +145,20 @@ unsigned paravirt_patch_default(u8 type, u16 clobbers, void *insnbuf,
26346
26347 if (opfunc == NULL)
26348 /* If there's no function, patch it with a ud2a (BUG) */
26349- ret = paravirt_patch_insns(insnbuf, len, ud2a, ud2a+sizeof(ud2a));
26350- else if (opfunc == _paravirt_nop)
26351+ ret = paravirt_patch_insns(insnbuf, len, ktva_ktla(ud2a), ud2a+sizeof(ud2a));
26352+ else if (opfunc == (void *)_paravirt_nop)
26353 /* If the operation is a nop, then nop the callsite */
26354 ret = paravirt_patch_nop();
26355
26356 /* identity functions just return their single argument */
26357- else if (opfunc == _paravirt_ident_32)
26358+ else if (opfunc == (void *)_paravirt_ident_32)
26359 ret = paravirt_patch_ident_32(insnbuf, len);
26360- else if (opfunc == _paravirt_ident_64)
26361+ else if (opfunc == (void *)_paravirt_ident_64)
26362 ret = paravirt_patch_ident_64(insnbuf, len);
26363+#if defined(CONFIG_X86_32) && defined(CONFIG_X86_PAE)
26364+ else if (opfunc == (void *)__raw_callee_save__paravirt_ident_64)
26365+ ret = paravirt_patch_ident_64(insnbuf, len);
26366+#endif
26367
26368 else if (type == PARAVIRT_PATCH(pv_cpu_ops.iret) ||
26369 type == PARAVIRT_PATCH(pv_cpu_ops.irq_enable_sysexit) ||
26370@@ -176,7 +183,7 @@ unsigned paravirt_patch_insns(void *insnbuf, unsigned len,
26371 if (insn_len > len || start == NULL)
26372 insn_len = len;
26373 else
26374- memcpy(insnbuf, start, insn_len);
26375+ memcpy(insnbuf, ktla_ktva(start), insn_len);
26376
26377 return insn_len;
26378 }
26379@@ -300,7 +307,7 @@ enum paravirt_lazy_mode paravirt_get_lazy_mode(void)
26380 return this_cpu_read(paravirt_lazy_mode);
26381 }
26382
26383-struct pv_info pv_info = {
26384+struct pv_info pv_info __read_only = {
26385 .name = "bare hardware",
26386 .paravirt_enabled = 0,
26387 .kernel_rpl = 0,
26388@@ -311,16 +318,16 @@ struct pv_info pv_info = {
26389 #endif
26390 };
26391
26392-struct pv_init_ops pv_init_ops = {
26393+struct pv_init_ops pv_init_ops __read_only = {
26394 .patch = native_patch,
26395 };
26396
26397-struct pv_time_ops pv_time_ops = {
26398+struct pv_time_ops pv_time_ops __read_only = {
26399 .sched_clock = native_sched_clock,
26400 .steal_clock = native_steal_clock,
26401 };
26402
26403-__visible struct pv_irq_ops pv_irq_ops = {
26404+__visible struct pv_irq_ops pv_irq_ops __read_only = {
26405 .save_fl = __PV_IS_CALLEE_SAVE(native_save_fl),
26406 .restore_fl = __PV_IS_CALLEE_SAVE(native_restore_fl),
26407 .irq_disable = __PV_IS_CALLEE_SAVE(native_irq_disable),
26408@@ -332,7 +339,7 @@ __visible struct pv_irq_ops pv_irq_ops = {
26409 #endif
26410 };
26411
26412-__visible struct pv_cpu_ops pv_cpu_ops = {
26413+__visible struct pv_cpu_ops pv_cpu_ops __read_only = {
26414 .cpuid = native_cpuid,
26415 .get_debugreg = native_get_debugreg,
26416 .set_debugreg = native_set_debugreg,
26417@@ -395,21 +402,26 @@ NOKPROBE_SYMBOL(native_get_debugreg);
26418 NOKPROBE_SYMBOL(native_set_debugreg);
26419 NOKPROBE_SYMBOL(native_load_idt);
26420
26421-struct pv_apic_ops pv_apic_ops = {
26422+struct pv_apic_ops pv_apic_ops __read_only= {
26423 #ifdef CONFIG_X86_LOCAL_APIC
26424 .startup_ipi_hook = paravirt_nop,
26425 #endif
26426 };
26427
26428-#if defined(CONFIG_X86_32) && !defined(CONFIG_X86_PAE)
26429+#ifdef CONFIG_X86_32
26430+#ifdef CONFIG_X86_PAE
26431+/* 64-bit pagetable entries */
26432+#define PTE_IDENT PV_CALLEE_SAVE(_paravirt_ident_64)
26433+#else
26434 /* 32-bit pagetable entries */
26435 #define PTE_IDENT __PV_IS_CALLEE_SAVE(_paravirt_ident_32)
26436+#endif
26437 #else
26438 /* 64-bit pagetable entries */
26439 #define PTE_IDENT __PV_IS_CALLEE_SAVE(_paravirt_ident_64)
26440 #endif
26441
26442-struct pv_mmu_ops pv_mmu_ops = {
26443+struct pv_mmu_ops pv_mmu_ops __read_only = {
26444
26445 .read_cr2 = native_read_cr2,
26446 .write_cr2 = native_write_cr2,
26447@@ -459,6 +471,7 @@ struct pv_mmu_ops pv_mmu_ops = {
26448 .make_pud = PTE_IDENT,
26449
26450 .set_pgd = native_set_pgd,
26451+ .set_pgd_batched = native_set_pgd_batched,
26452 #endif
26453 #endif /* PAGETABLE_LEVELS >= 3 */
26454
26455@@ -479,6 +492,12 @@ struct pv_mmu_ops pv_mmu_ops = {
26456 },
26457
26458 .set_fixmap = native_set_fixmap,
26459+
26460+#ifdef CONFIG_PAX_KERNEXEC
26461+ .pax_open_kernel = native_pax_open_kernel,
26462+ .pax_close_kernel = native_pax_close_kernel,
26463+#endif
26464+
26465 };
26466
26467 EXPORT_SYMBOL_GPL(pv_time_ops);
26468diff --git a/arch/x86/kernel/paravirt_patch_64.c b/arch/x86/kernel/paravirt_patch_64.c
26469index a1da673..b6f5831 100644
26470--- a/arch/x86/kernel/paravirt_patch_64.c
26471+++ b/arch/x86/kernel/paravirt_patch_64.c
26472@@ -9,7 +9,11 @@ DEF_NATIVE(pv_irq_ops, save_fl, "pushfq; popq %rax");
26473 DEF_NATIVE(pv_mmu_ops, read_cr2, "movq %cr2, %rax");
26474 DEF_NATIVE(pv_mmu_ops, read_cr3, "movq %cr3, %rax");
26475 DEF_NATIVE(pv_mmu_ops, write_cr3, "movq %rdi, %cr3");
26476+
26477+#ifndef CONFIG_PAX_MEMORY_UDEREF
26478 DEF_NATIVE(pv_mmu_ops, flush_tlb_single, "invlpg (%rdi)");
26479+#endif
26480+
26481 DEF_NATIVE(pv_cpu_ops, clts, "clts");
26482 DEF_NATIVE(pv_cpu_ops, wbinvd, "wbinvd");
26483
26484@@ -57,7 +61,11 @@ unsigned native_patch(u8 type, u16 clobbers, void *ibuf,
26485 PATCH_SITE(pv_mmu_ops, read_cr3);
26486 PATCH_SITE(pv_mmu_ops, write_cr3);
26487 PATCH_SITE(pv_cpu_ops, clts);
26488+
26489+#ifndef CONFIG_PAX_MEMORY_UDEREF
26490 PATCH_SITE(pv_mmu_ops, flush_tlb_single);
26491+#endif
26492+
26493 PATCH_SITE(pv_cpu_ops, wbinvd);
26494
26495 patch_site:
26496diff --git a/arch/x86/kernel/pci-calgary_64.c b/arch/x86/kernel/pci-calgary_64.c
26497index 0497f71..7186c0d 100644
26498--- a/arch/x86/kernel/pci-calgary_64.c
26499+++ b/arch/x86/kernel/pci-calgary_64.c
26500@@ -1347,7 +1347,7 @@ static void __init get_tce_space_from_tar(void)
26501 tce_space = be64_to_cpu(readq(target));
26502 tce_space = tce_space & TAR_SW_BITS;
26503
26504- tce_space = tce_space & (~specified_table_size);
26505+ tce_space = tce_space & (~(unsigned long)specified_table_size);
26506 info->tce_space = (u64 *)__va(tce_space);
26507 }
26508 }
26509diff --git a/arch/x86/kernel/pci-iommu_table.c b/arch/x86/kernel/pci-iommu_table.c
26510index 35ccf75..7a15747 100644
26511--- a/arch/x86/kernel/pci-iommu_table.c
26512+++ b/arch/x86/kernel/pci-iommu_table.c
26513@@ -2,7 +2,7 @@
26514 #include <asm/iommu_table.h>
26515 #include <linux/string.h>
26516 #include <linux/kallsyms.h>
26517-
26518+#include <linux/sched.h>
26519
26520 #define DEBUG 1
26521
26522diff --git a/arch/x86/kernel/pci-swiotlb.c b/arch/x86/kernel/pci-swiotlb.c
26523index 77dd0ad..9ec4723 100644
26524--- a/arch/x86/kernel/pci-swiotlb.c
26525+++ b/arch/x86/kernel/pci-swiotlb.c
26526@@ -33,7 +33,7 @@ void x86_swiotlb_free_coherent(struct device *dev, size_t size,
26527 struct dma_attrs *attrs)
26528 {
26529 if (is_swiotlb_buffer(dma_to_phys(dev, dma_addr)))
26530- swiotlb_free_coherent(dev, size, vaddr, dma_addr);
26531+ swiotlb_free_coherent(dev, size, vaddr, dma_addr, attrs);
26532 else
26533 dma_generic_free_coherent(dev, size, vaddr, dma_addr, attrs);
26534 }
26535diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c
26536index a388bb8..97064ad 100644
26537--- a/arch/x86/kernel/process.c
26538+++ b/arch/x86/kernel/process.c
26539@@ -38,7 +38,8 @@
26540 * section. Since TSS's are completely CPU-local, we want them
26541 * on exact cacheline boundaries, to eliminate cacheline ping-pong.
26542 */
26543-__visible DEFINE_PER_CPU_SHARED_ALIGNED(struct tss_struct, init_tss) = INIT_TSS;
26544+struct tss_struct init_tss[NR_CPUS] __visible ____cacheline_internodealigned_in_smp = { [0 ... NR_CPUS-1] = INIT_TSS };
26545+EXPORT_SYMBOL(init_tss);
26546
26547 #ifdef CONFIG_X86_64
26548 static DEFINE_PER_CPU(unsigned char, is_idle);
26549@@ -96,7 +97,7 @@ void arch_task_cache_init(void)
26550 task_xstate_cachep =
26551 kmem_cache_create("task_xstate", xstate_size,
26552 __alignof__(union thread_xstate),
26553- SLAB_PANIC | SLAB_NOTRACK, NULL);
26554+ SLAB_PANIC | SLAB_NOTRACK | SLAB_USERCOPY, NULL);
26555 setup_xstate_comp();
26556 }
26557
26558@@ -110,7 +111,7 @@ void exit_thread(void)
26559 unsigned long *bp = t->io_bitmap_ptr;
26560
26561 if (bp) {
26562- struct tss_struct *tss = &per_cpu(init_tss, get_cpu());
26563+ struct tss_struct *tss = init_tss + get_cpu();
26564
26565 t->io_bitmap_ptr = NULL;
26566 clear_thread_flag(TIF_IO_BITMAP);
26567@@ -130,6 +131,9 @@ void flush_thread(void)
26568 {
26569 struct task_struct *tsk = current;
26570
26571+#if defined(CONFIG_X86_32) && !defined(CONFIG_CC_STACKPROTECTOR) && !defined(CONFIG_PAX_MEMORY_UDEREF)
26572+ loadsegment(gs, 0);
26573+#endif
26574 flush_ptrace_hw_breakpoint(tsk);
26575 memset(tsk->thread.tls_array, 0, sizeof(tsk->thread.tls_array));
26576 drop_init_fpu(tsk);
26577@@ -276,7 +280,7 @@ static void __exit_idle(void)
26578 void exit_idle(void)
26579 {
26580 /* idle loop has pid 0 */
26581- if (current->pid)
26582+ if (task_pid_nr(current))
26583 return;
26584 __exit_idle();
26585 }
26586@@ -329,7 +333,7 @@ bool xen_set_default_idle(void)
26587 return ret;
26588 }
26589 #endif
26590-void stop_this_cpu(void *dummy)
26591+__noreturn void stop_this_cpu(void *dummy)
26592 {
26593 local_irq_disable();
26594 /*
26595@@ -508,16 +512,37 @@ static int __init idle_setup(char *str)
26596 }
26597 early_param("idle", idle_setup);
26598
26599-unsigned long arch_align_stack(unsigned long sp)
26600+#ifdef CONFIG_PAX_RANDKSTACK
26601+void pax_randomize_kstack(struct pt_regs *regs)
26602 {
26603- if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space)
26604- sp -= get_random_int() % 8192;
26605- return sp & ~0xf;
26606-}
26607+ struct thread_struct *thread = &current->thread;
26608+ unsigned long time;
26609
26610-unsigned long arch_randomize_brk(struct mm_struct *mm)
26611-{
26612- unsigned long range_end = mm->brk + 0x02000000;
26613- return randomize_range(mm->brk, range_end, 0) ? : mm->brk;
26614-}
26615+ if (!randomize_va_space)
26616+ return;
26617+
26618+ if (v8086_mode(regs))
26619+ return;
26620
26621+ rdtscl(time);
26622+
26623+ /* P4 seems to return a 0 LSB, ignore it */
26624+#ifdef CONFIG_MPENTIUM4
26625+ time &= 0x3EUL;
26626+ time <<= 2;
26627+#elif defined(CONFIG_X86_64)
26628+ time &= 0xFUL;
26629+ time <<= 4;
26630+#else
26631+ time &= 0x1FUL;
26632+ time <<= 3;
26633+#endif
26634+
26635+ thread->sp0 ^= time;
26636+ load_sp0(init_tss + smp_processor_id(), thread);
26637+
26638+#ifdef CONFIG_X86_64
26639+ this_cpu_write(kernel_stack, thread->sp0);
26640+#endif
26641+}
26642+#endif
26643diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c
26644index 603c4f9..3a105d7 100644
26645--- a/arch/x86/kernel/process_32.c
26646+++ b/arch/x86/kernel/process_32.c
26647@@ -64,6 +64,7 @@ asmlinkage void ret_from_kernel_thread(void) __asm__("ret_from_kernel_thread");
26648 unsigned long thread_saved_pc(struct task_struct *tsk)
26649 {
26650 return ((unsigned long *)tsk->thread.sp)[3];
26651+//XXX return tsk->thread.eip;
26652 }
26653
26654 void __show_regs(struct pt_regs *regs, int all)
26655@@ -73,19 +74,18 @@ void __show_regs(struct pt_regs *regs, int all)
26656 unsigned long sp;
26657 unsigned short ss, gs;
26658
26659- if (user_mode_vm(regs)) {
26660+ if (user_mode(regs)) {
26661 sp = regs->sp;
26662 ss = regs->ss & 0xffff;
26663- gs = get_user_gs(regs);
26664 } else {
26665 sp = kernel_stack_pointer(regs);
26666 savesegment(ss, ss);
26667- savesegment(gs, gs);
26668 }
26669+ gs = get_user_gs(regs);
26670
26671 printk(KERN_DEFAULT "EIP: %04x:[<%08lx>] EFLAGS: %08lx CPU: %d\n",
26672 (u16)regs->cs, regs->ip, regs->flags,
26673- smp_processor_id());
26674+ raw_smp_processor_id());
26675 print_symbol("EIP is at %s\n", regs->ip);
26676
26677 printk(KERN_DEFAULT "EAX: %08lx EBX: %08lx ECX: %08lx EDX: %08lx\n",
26678@@ -132,21 +132,22 @@ void release_thread(struct task_struct *dead_task)
26679 int copy_thread(unsigned long clone_flags, unsigned long sp,
26680 unsigned long arg, struct task_struct *p)
26681 {
26682- struct pt_regs *childregs = task_pt_regs(p);
26683+ struct pt_regs *childregs = task_stack_page(p) + THREAD_SIZE - sizeof(struct pt_regs) - 8;
26684 struct task_struct *tsk;
26685 int err;
26686
26687 p->thread.sp = (unsigned long) childregs;
26688 p->thread.sp0 = (unsigned long) (childregs+1);
26689+ p->tinfo.lowest_stack = (unsigned long)task_stack_page(p) + 2 * sizeof(unsigned long);
26690 memset(p->thread.ptrace_bps, 0, sizeof(p->thread.ptrace_bps));
26691
26692 if (unlikely(p->flags & PF_KTHREAD)) {
26693 /* kernel thread */
26694 memset(childregs, 0, sizeof(struct pt_regs));
26695 p->thread.ip = (unsigned long) ret_from_kernel_thread;
26696- task_user_gs(p) = __KERNEL_STACK_CANARY;
26697- childregs->ds = __USER_DS;
26698- childregs->es = __USER_DS;
26699+ savesegment(gs, childregs->gs);
26700+ childregs->ds = __KERNEL_DS;
26701+ childregs->es = __KERNEL_DS;
26702 childregs->fs = __KERNEL_PERCPU;
26703 childregs->bx = sp; /* function */
26704 childregs->bp = arg;
26705@@ -248,7 +249,7 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
26706 struct thread_struct *prev = &prev_p->thread,
26707 *next = &next_p->thread;
26708 int cpu = smp_processor_id();
26709- struct tss_struct *tss = &per_cpu(init_tss, cpu);
26710+ struct tss_struct *tss = init_tss + cpu;
26711 fpu_switch_t fpu;
26712
26713 /* never put a printk in __switch_to... printk() calls wake_up*() indirectly */
26714@@ -272,6 +273,10 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
26715 */
26716 lazy_save_gs(prev->gs);
26717
26718+#ifdef CONFIG_PAX_MEMORY_UDEREF
26719+ __set_fs(task_thread_info(next_p)->addr_limit);
26720+#endif
26721+
26722 /*
26723 * Load the per-thread Thread-Local Storage descriptor.
26724 */
26725@@ -310,9 +315,9 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
26726 */
26727 arch_end_context_switch(next_p);
26728
26729- this_cpu_write(kernel_stack,
26730- (unsigned long)task_stack_page(next_p) +
26731- THREAD_SIZE - KERNEL_STACK_OFFSET);
26732+ this_cpu_write(current_task, next_p);
26733+ this_cpu_write(current_tinfo, &next_p->tinfo);
26734+ this_cpu_write(kernel_stack, next->sp0);
26735
26736 /*
26737 * Restore %gs if needed (which is common)
26738@@ -322,8 +327,6 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
26739
26740 switch_fpu_finish(next_p, fpu);
26741
26742- this_cpu_write(current_task, next_p);
26743-
26744 return prev_p;
26745 }
26746
26747@@ -353,4 +356,3 @@ unsigned long get_wchan(struct task_struct *p)
26748 } while (count++ < 16);
26749 return 0;
26750 }
26751-
26752diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
26753index 67fcc43..0d2c630 100644
26754--- a/arch/x86/kernel/process_64.c
26755+++ b/arch/x86/kernel/process_64.c
26756@@ -158,10 +158,11 @@ int copy_thread(unsigned long clone_flags, unsigned long sp,
26757 struct pt_regs *childregs;
26758 struct task_struct *me = current;
26759
26760- p->thread.sp0 = (unsigned long)task_stack_page(p) + THREAD_SIZE;
26761+ p->thread.sp0 = (unsigned long)task_stack_page(p) + THREAD_SIZE - 16;
26762 childregs = task_pt_regs(p);
26763 p->thread.sp = (unsigned long) childregs;
26764 p->thread.usersp = me->thread.usersp;
26765+ p->tinfo.lowest_stack = (unsigned long)task_stack_page(p) + 2 * sizeof(unsigned long);
26766 set_tsk_thread_flag(p, TIF_FORK);
26767 p->thread.io_bitmap_ptr = NULL;
26768
26769@@ -171,6 +172,8 @@ int copy_thread(unsigned long clone_flags, unsigned long sp,
26770 p->thread.fs = p->thread.fsindex ? 0 : me->thread.fs;
26771 savesegment(es, p->thread.es);
26772 savesegment(ds, p->thread.ds);
26773+ savesegment(ss, p->thread.ss);
26774+ BUG_ON(p->thread.ss == __UDEREF_KERNEL_DS);
26775 memset(p->thread.ptrace_bps, 0, sizeof(p->thread.ptrace_bps));
26776
26777 if (unlikely(p->flags & PF_KTHREAD)) {
26778@@ -277,7 +280,7 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
26779 struct thread_struct *prev = &prev_p->thread;
26780 struct thread_struct *next = &next_p->thread;
26781 int cpu = smp_processor_id();
26782- struct tss_struct *tss = &per_cpu(init_tss, cpu);
26783+ struct tss_struct *tss = init_tss + cpu;
26784 unsigned fsindex, gsindex;
26785 fpu_switch_t fpu;
26786
26787@@ -331,6 +334,10 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
26788 if (unlikely(next->ds | prev->ds))
26789 loadsegment(ds, next->ds);
26790
26791+ savesegment(ss, prev->ss);
26792+ if (unlikely(next->ss != prev->ss))
26793+ loadsegment(ss, next->ss);
26794+
26795 /*
26796 * Switch FS and GS.
26797 *
26798@@ -404,6 +411,7 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
26799 prev->usersp = this_cpu_read(old_rsp);
26800 this_cpu_write(old_rsp, next->usersp);
26801 this_cpu_write(current_task, next_p);
26802+ this_cpu_write(current_tinfo, &next_p->tinfo);
26803
26804 /*
26805 * If it were not for PREEMPT_ACTIVE we could guarantee that the
26806@@ -413,9 +421,7 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
26807 task_thread_info(prev_p)->saved_preempt_count = this_cpu_read(__preempt_count);
26808 this_cpu_write(__preempt_count, task_thread_info(next_p)->saved_preempt_count);
26809
26810- this_cpu_write(kernel_stack,
26811- (unsigned long)task_stack_page(next_p) +
26812- THREAD_SIZE - KERNEL_STACK_OFFSET);
26813+ this_cpu_write(kernel_stack, next->sp0);
26814
26815 /*
26816 * Now maybe reload the debug registers and handle I/O bitmaps
26817@@ -485,12 +491,11 @@ unsigned long get_wchan(struct task_struct *p)
26818 if (!p || p == current || p->state == TASK_RUNNING)
26819 return 0;
26820 stack = (unsigned long)task_stack_page(p);
26821- if (p->thread.sp < stack || p->thread.sp >= stack+THREAD_SIZE)
26822+ if (p->thread.sp < stack || p->thread.sp > stack+THREAD_SIZE-16-sizeof(u64))
26823 return 0;
26824 fp = *(u64 *)(p->thread.sp);
26825 do {
26826- if (fp < (unsigned long)stack ||
26827- fp >= (unsigned long)stack+THREAD_SIZE)
26828+ if (fp < stack || fp > stack+THREAD_SIZE-16-sizeof(u64))
26829 return 0;
26830 ip = *(u64 *)(fp+8);
26831 if (!in_sched_functions(ip))
26832diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c
26833index e510618..5165ac0 100644
26834--- a/arch/x86/kernel/ptrace.c
26835+++ b/arch/x86/kernel/ptrace.c
26836@@ -186,10 +186,10 @@ unsigned long kernel_stack_pointer(struct pt_regs *regs)
26837 unsigned long sp = (unsigned long)&regs->sp;
26838 u32 *prev_esp;
26839
26840- if (context == (sp & ~(THREAD_SIZE - 1)))
26841+ if (context == ((sp + 8) & ~(THREAD_SIZE - 1)))
26842 return sp;
26843
26844- prev_esp = (u32 *)(context);
26845+ prev_esp = *(u32 **)(context);
26846 if (prev_esp)
26847 return (unsigned long)prev_esp;
26848
26849@@ -452,6 +452,20 @@ static int putreg(struct task_struct *child,
26850 if (child->thread.gs != value)
26851 return do_arch_prctl(child, ARCH_SET_GS, value);
26852 return 0;
26853+
26854+ case offsetof(struct user_regs_struct,ip):
26855+ /*
26856+ * Protect against any attempt to set ip to an
26857+ * impossible address. There are dragons lurking if the
26858+ * address is noncanonical. (This explicitly allows
26859+ * setting ip to TASK_SIZE_MAX, because user code can do
26860+ * that all by itself by running off the end of its
26861+ * address space.
26862+ */
26863+ if (value > TASK_SIZE_MAX)
26864+ return -EIO;
26865+ break;
26866+
26867 #endif
26868 }
26869
26870@@ -588,7 +602,7 @@ static void ptrace_triggered(struct perf_event *bp,
26871 static unsigned long ptrace_get_dr7(struct perf_event *bp[])
26872 {
26873 int i;
26874- int dr7 = 0;
26875+ unsigned long dr7 = 0;
26876 struct arch_hw_breakpoint *info;
26877
26878 for (i = 0; i < HBP_NUM; i++) {
26879@@ -822,7 +836,7 @@ long arch_ptrace(struct task_struct *child, long request,
26880 unsigned long addr, unsigned long data)
26881 {
26882 int ret;
26883- unsigned long __user *datap = (unsigned long __user *)data;
26884+ unsigned long __user *datap = (__force unsigned long __user *)data;
26885
26886 switch (request) {
26887 /* read the word at location addr in the USER area. */
26888@@ -907,14 +921,14 @@ long arch_ptrace(struct task_struct *child, long request,
26889 if ((int) addr < 0)
26890 return -EIO;
26891 ret = do_get_thread_area(child, addr,
26892- (struct user_desc __user *)data);
26893+ (__force struct user_desc __user *) data);
26894 break;
26895
26896 case PTRACE_SET_THREAD_AREA:
26897 if ((int) addr < 0)
26898 return -EIO;
26899 ret = do_set_thread_area(child, addr,
26900- (struct user_desc __user *)data, 0);
26901+ (__force struct user_desc __user *) data, 0);
26902 break;
26903 #endif
26904
26905@@ -1292,7 +1306,7 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
26906
26907 #ifdef CONFIG_X86_64
26908
26909-static struct user_regset x86_64_regsets[] __read_mostly = {
26910+static user_regset_no_const x86_64_regsets[] __read_only = {
26911 [REGSET_GENERAL] = {
26912 .core_note_type = NT_PRSTATUS,
26913 .n = sizeof(struct user_regs_struct) / sizeof(long),
26914@@ -1333,7 +1347,7 @@ static const struct user_regset_view user_x86_64_view = {
26915 #endif /* CONFIG_X86_64 */
26916
26917 #if defined CONFIG_X86_32 || defined CONFIG_IA32_EMULATION
26918-static struct user_regset x86_32_regsets[] __read_mostly = {
26919+static user_regset_no_const x86_32_regsets[] __read_only = {
26920 [REGSET_GENERAL] = {
26921 .core_note_type = NT_PRSTATUS,
26922 .n = sizeof(struct user_regs_struct32) / sizeof(u32),
26923@@ -1386,7 +1400,7 @@ static const struct user_regset_view user_x86_32_view = {
26924 */
26925 u64 xstate_fx_sw_bytes[USER_XSTATE_FX_SW_WORDS];
26926
26927-void update_regset_xstate_info(unsigned int size, u64 xstate_mask)
26928+void __init update_regset_xstate_info(unsigned int size, u64 xstate_mask)
26929 {
26930 #ifdef CONFIG_X86_64
26931 x86_64_regsets[REGSET_XSTATE].n = size / sizeof(u64);
26932@@ -1421,7 +1435,7 @@ static void fill_sigtrap_info(struct task_struct *tsk,
26933 memset(info, 0, sizeof(*info));
26934 info->si_signo = SIGTRAP;
26935 info->si_code = si_code;
26936- info->si_addr = user_mode_vm(regs) ? (void __user *)regs->ip : NULL;
26937+ info->si_addr = user_mode(regs) ? (__force void __user *)regs->ip : NULL;
26938 }
26939
26940 void user_single_step_siginfo(struct task_struct *tsk,
26941@@ -1455,6 +1469,10 @@ static void do_audit_syscall_entry(struct pt_regs *regs, u32 arch)
26942 }
26943 }
26944
26945+#ifdef CONFIG_GRKERNSEC_SETXID
26946+extern void gr_delayed_cred_worker(void);
26947+#endif
26948+
26949 /*
26950 * We can return 0 to resume the syscall or anything else to go to phase
26951 * 2. If we resume the syscall, we need to put something appropriate in
26952@@ -1562,6 +1580,11 @@ long syscall_trace_enter_phase2(struct pt_regs *regs, u32 arch,
26953
26954 BUG_ON(regs != task_pt_regs(current));
26955
26956+#ifdef CONFIG_GRKERNSEC_SETXID
26957+ if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID)))
26958+ gr_delayed_cred_worker();
26959+#endif
26960+
26961 /*
26962 * If we stepped into a sysenter/syscall insn, it trapped in
26963 * kernel mode; do_debug() cleared TF and set TIF_SINGLESTEP.
26964@@ -1620,6 +1643,11 @@ void syscall_trace_leave(struct pt_regs *regs)
26965 */
26966 user_exit();
26967
26968+#ifdef CONFIG_GRKERNSEC_SETXID
26969+ if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID)))
26970+ gr_delayed_cred_worker();
26971+#endif
26972+
26973 audit_syscall_exit(regs);
26974
26975 if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
26976diff --git a/arch/x86/kernel/pvclock.c b/arch/x86/kernel/pvclock.c
26977index e5ecd20..60f7eef 100644
26978--- a/arch/x86/kernel/pvclock.c
26979+++ b/arch/x86/kernel/pvclock.c
26980@@ -51,11 +51,11 @@ void pvclock_touch_watchdogs(void)
26981 reset_hung_task_detector();
26982 }
26983
26984-static atomic64_t last_value = ATOMIC64_INIT(0);
26985+static atomic64_unchecked_t last_value = ATOMIC64_INIT(0);
26986
26987 void pvclock_resume(void)
26988 {
26989- atomic64_set(&last_value, 0);
26990+ atomic64_set_unchecked(&last_value, 0);
26991 }
26992
26993 u8 pvclock_read_flags(struct pvclock_vcpu_time_info *src)
26994@@ -105,11 +105,11 @@ cycle_t pvclock_clocksource_read(struct pvclock_vcpu_time_info *src)
26995 * updating at the same time, and one of them could be slightly behind,
26996 * making the assumption that last_value always go forward fail to hold.
26997 */
26998- last = atomic64_read(&last_value);
26999+ last = atomic64_read_unchecked(&last_value);
27000 do {
27001 if (ret < last)
27002 return last;
27003- last = atomic64_cmpxchg(&last_value, last, ret);
27004+ last = atomic64_cmpxchg_unchecked(&last_value, last, ret);
27005 } while (unlikely(last != ret));
27006
27007 return ret;
27008diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c
27009index 86db4bc..a50a54a 100644
27010--- a/arch/x86/kernel/reboot.c
27011+++ b/arch/x86/kernel/reboot.c
27012@@ -70,6 +70,11 @@ static int __init set_bios_reboot(const struct dmi_system_id *d)
27013
27014 void __noreturn machine_real_restart(unsigned int type)
27015 {
27016+
27017+#if defined(CONFIG_X86_32) && (defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF))
27018+ struct desc_struct *gdt;
27019+#endif
27020+
27021 local_irq_disable();
27022
27023 /*
27024@@ -97,7 +102,29 @@ void __noreturn machine_real_restart(unsigned int type)
27025
27026 /* Jump to the identity-mapped low memory code */
27027 #ifdef CONFIG_X86_32
27028- asm volatile("jmpl *%0" : :
27029+
27030+#if defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
27031+ gdt = get_cpu_gdt_table(smp_processor_id());
27032+ pax_open_kernel();
27033+#ifdef CONFIG_PAX_MEMORY_UDEREF
27034+ gdt[GDT_ENTRY_KERNEL_DS].type = 3;
27035+ gdt[GDT_ENTRY_KERNEL_DS].limit = 0xf;
27036+ loadsegment(ds, __KERNEL_DS);
27037+ loadsegment(es, __KERNEL_DS);
27038+ loadsegment(ss, __KERNEL_DS);
27039+#endif
27040+#ifdef CONFIG_PAX_KERNEXEC
27041+ gdt[GDT_ENTRY_KERNEL_CS].base0 = 0;
27042+ gdt[GDT_ENTRY_KERNEL_CS].base1 = 0;
27043+ gdt[GDT_ENTRY_KERNEL_CS].base2 = 0;
27044+ gdt[GDT_ENTRY_KERNEL_CS].limit0 = 0xffff;
27045+ gdt[GDT_ENTRY_KERNEL_CS].limit = 0xf;
27046+ gdt[GDT_ENTRY_KERNEL_CS].g = 1;
27047+#endif
27048+ pax_close_kernel();
27049+#endif
27050+
27051+ asm volatile("ljmpl *%0" : :
27052 "rm" (real_mode_header->machine_real_restart_asm),
27053 "a" (type));
27054 #else
27055@@ -137,7 +164,7 @@ static int __init set_kbd_reboot(const struct dmi_system_id *d)
27056 /*
27057 * This is a single dmi_table handling all reboot quirks.
27058 */
27059-static struct dmi_system_id __initdata reboot_dmi_table[] = {
27060+static const struct dmi_system_id __initconst reboot_dmi_table[] = {
27061
27062 /* Acer */
27063 { /* Handle reboot issue on Acer Aspire one */
27064@@ -511,7 +538,7 @@ void __attribute__((weak)) mach_reboot_fixups(void)
27065 * This means that this function can never return, it can misbehave
27066 * by not rebooting properly and hanging.
27067 */
27068-static void native_machine_emergency_restart(void)
27069+static void __noreturn native_machine_emergency_restart(void)
27070 {
27071 int i;
27072 int attempt = 0;
27073@@ -631,13 +658,13 @@ void native_machine_shutdown(void)
27074 #endif
27075 }
27076
27077-static void __machine_emergency_restart(int emergency)
27078+static void __noreturn __machine_emergency_restart(int emergency)
27079 {
27080 reboot_emergency = emergency;
27081 machine_ops.emergency_restart();
27082 }
27083
27084-static void native_machine_restart(char *__unused)
27085+static void __noreturn native_machine_restart(char *__unused)
27086 {
27087 pr_notice("machine restart\n");
27088
27089@@ -646,7 +673,7 @@ static void native_machine_restart(char *__unused)
27090 __machine_emergency_restart(0);
27091 }
27092
27093-static void native_machine_halt(void)
27094+static void __noreturn native_machine_halt(void)
27095 {
27096 /* Stop other cpus and apics */
27097 machine_shutdown();
27098@@ -656,7 +683,7 @@ static void native_machine_halt(void)
27099 stop_this_cpu(NULL);
27100 }
27101
27102-static void native_machine_power_off(void)
27103+static void __noreturn native_machine_power_off(void)
27104 {
27105 if (pm_power_off) {
27106 if (!reboot_force)
27107@@ -665,9 +692,10 @@ static void native_machine_power_off(void)
27108 }
27109 /* A fallback in case there is no PM info available */
27110 tboot_shutdown(TB_SHUTDOWN_HALT);
27111+ unreachable();
27112 }
27113
27114-struct machine_ops machine_ops = {
27115+struct machine_ops machine_ops __read_only = {
27116 .power_off = native_machine_power_off,
27117 .shutdown = native_machine_shutdown,
27118 .emergency_restart = native_machine_emergency_restart,
27119diff --git a/arch/x86/kernel/reboot_fixups_32.c b/arch/x86/kernel/reboot_fixups_32.c
27120index c8e41e9..64049ef 100644
27121--- a/arch/x86/kernel/reboot_fixups_32.c
27122+++ b/arch/x86/kernel/reboot_fixups_32.c
27123@@ -57,7 +57,7 @@ struct device_fixup {
27124 unsigned int vendor;
27125 unsigned int device;
27126 void (*reboot_fixup)(struct pci_dev *);
27127-};
27128+} __do_const;
27129
27130 /*
27131 * PCI ids solely used for fixups_table go here
27132diff --git a/arch/x86/kernel/relocate_kernel_64.S b/arch/x86/kernel/relocate_kernel_64.S
27133index 3fd2c69..a444264 100644
27134--- a/arch/x86/kernel/relocate_kernel_64.S
27135+++ b/arch/x86/kernel/relocate_kernel_64.S
27136@@ -96,8 +96,7 @@ relocate_kernel:
27137
27138 /* jump to identity mapped page */
27139 addq $(identity_mapped - relocate_kernel), %r8
27140- pushq %r8
27141- ret
27142+ jmp *%r8
27143
27144 identity_mapped:
27145 /* set return address to 0 if not preserving context */
27146diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
27147index 0a2421c..11f3f36 100644
27148--- a/arch/x86/kernel/setup.c
27149+++ b/arch/x86/kernel/setup.c
27150@@ -111,6 +111,7 @@
27151 #include <asm/mce.h>
27152 #include <asm/alternative.h>
27153 #include <asm/prom.h>
27154+#include <asm/boot.h>
27155
27156 /*
27157 * max_low_pfn_mapped: highest direct mapped pfn under 4GB
27158@@ -206,10 +207,12 @@ EXPORT_SYMBOL(boot_cpu_data);
27159 #endif
27160
27161
27162-#if !defined(CONFIG_X86_PAE) || defined(CONFIG_X86_64)
27163-__visible unsigned long mmu_cr4_features;
27164+#ifdef CONFIG_X86_64
27165+__visible unsigned long mmu_cr4_features __read_only = X86_CR4_PSE | X86_CR4_PAE | X86_CR4_PGE;
27166+#elif defined(CONFIG_X86_PAE)
27167+__visible unsigned long mmu_cr4_features __read_only = X86_CR4_PAE;
27168 #else
27169-__visible unsigned long mmu_cr4_features = X86_CR4_PAE;
27170+__visible unsigned long mmu_cr4_features __read_only;
27171 #endif
27172
27173 /* Boot loader ID and version as integers, for the benefit of proc_dointvec */
27174@@ -771,7 +774,7 @@ static void __init trim_bios_range(void)
27175 * area (640->1Mb) as ram even though it is not.
27176 * take them out.
27177 */
27178- e820_remove_range(BIOS_BEGIN, BIOS_END - BIOS_BEGIN, E820_RAM, 1);
27179+ e820_remove_range(ISA_START_ADDRESS, ISA_END_ADDRESS - ISA_START_ADDRESS, E820_RAM, 1);
27180
27181 sanitize_e820_map(e820.map, ARRAY_SIZE(e820.map), &e820.nr_map);
27182 }
27183@@ -779,7 +782,7 @@ static void __init trim_bios_range(void)
27184 /* called before trim_bios_range() to spare extra sanitize */
27185 static void __init e820_add_kernel_range(void)
27186 {
27187- u64 start = __pa_symbol(_text);
27188+ u64 start = __pa_symbol(ktla_ktva(_text));
27189 u64 size = __pa_symbol(_end) - start;
27190
27191 /*
27192@@ -855,8 +858,12 @@ dump_kernel_offset(struct notifier_block *self, unsigned long v, void *p)
27193
27194 void __init setup_arch(char **cmdline_p)
27195 {
27196+#ifdef CONFIG_X86_32
27197+ memblock_reserve(LOAD_PHYSICAL_ADDR, __pa_symbol(__bss_stop) - LOAD_PHYSICAL_ADDR);
27198+#else
27199 memblock_reserve(__pa_symbol(_text),
27200 (unsigned long)__bss_stop - (unsigned long)_text);
27201+#endif
27202
27203 early_reserve_initrd();
27204
27205@@ -954,16 +961,16 @@ void __init setup_arch(char **cmdline_p)
27206
27207 if (!boot_params.hdr.root_flags)
27208 root_mountflags &= ~MS_RDONLY;
27209- init_mm.start_code = (unsigned long) _text;
27210- init_mm.end_code = (unsigned long) _etext;
27211+ init_mm.start_code = ktla_ktva((unsigned long) _text);
27212+ init_mm.end_code = ktla_ktva((unsigned long) _etext);
27213 init_mm.end_data = (unsigned long) _edata;
27214 init_mm.brk = _brk_end;
27215
27216 mpx_mm_init(&init_mm);
27217
27218- code_resource.start = __pa_symbol(_text);
27219- code_resource.end = __pa_symbol(_etext)-1;
27220- data_resource.start = __pa_symbol(_etext);
27221+ code_resource.start = __pa_symbol(ktla_ktva(_text));
27222+ code_resource.end = __pa_symbol(ktla_ktva(_etext))-1;
27223+ data_resource.start = __pa_symbol(_sdata);
27224 data_resource.end = __pa_symbol(_edata)-1;
27225 bss_resource.start = __pa_symbol(__bss_start);
27226 bss_resource.end = __pa_symbol(__bss_stop)-1;
27227diff --git a/arch/x86/kernel/setup_percpu.c b/arch/x86/kernel/setup_percpu.c
27228index e4fcb87..9c06c55 100644
27229--- a/arch/x86/kernel/setup_percpu.c
27230+++ b/arch/x86/kernel/setup_percpu.c
27231@@ -21,19 +21,17 @@
27232 #include <asm/cpu.h>
27233 #include <asm/stackprotector.h>
27234
27235-DEFINE_PER_CPU_READ_MOSTLY(int, cpu_number);
27236+#ifdef CONFIG_SMP
27237+DEFINE_PER_CPU_READ_MOSTLY(unsigned int, cpu_number);
27238 EXPORT_PER_CPU_SYMBOL(cpu_number);
27239+#endif
27240
27241-#ifdef CONFIG_X86_64
27242 #define BOOT_PERCPU_OFFSET ((unsigned long)__per_cpu_load)
27243-#else
27244-#define BOOT_PERCPU_OFFSET 0
27245-#endif
27246
27247 DEFINE_PER_CPU_READ_MOSTLY(unsigned long, this_cpu_off) = BOOT_PERCPU_OFFSET;
27248 EXPORT_PER_CPU_SYMBOL(this_cpu_off);
27249
27250-unsigned long __per_cpu_offset[NR_CPUS] __read_mostly = {
27251+unsigned long __per_cpu_offset[NR_CPUS] __read_only = {
27252 [0 ... NR_CPUS-1] = BOOT_PERCPU_OFFSET,
27253 };
27254 EXPORT_SYMBOL(__per_cpu_offset);
27255@@ -66,7 +64,7 @@ static bool __init pcpu_need_numa(void)
27256 {
27257 #ifdef CONFIG_NEED_MULTIPLE_NODES
27258 pg_data_t *last = NULL;
27259- unsigned int cpu;
27260+ int cpu;
27261
27262 for_each_possible_cpu(cpu) {
27263 int node = early_cpu_to_node(cpu);
27264@@ -155,10 +153,10 @@ static inline void setup_percpu_segment(int cpu)
27265 {
27266 #ifdef CONFIG_X86_32
27267 struct desc_struct gdt;
27268+ unsigned long base = per_cpu_offset(cpu);
27269
27270- pack_descriptor(&gdt, per_cpu_offset(cpu), 0xFFFFF,
27271- 0x2 | DESCTYPE_S, 0x8);
27272- gdt.s = 1;
27273+ pack_descriptor(&gdt, base, (VMALLOC_END - base - 1) >> PAGE_SHIFT,
27274+ 0x83 | DESCTYPE_S, 0xC);
27275 write_gdt_entry(get_cpu_gdt_table(cpu),
27276 GDT_ENTRY_PERCPU, &gdt, DESCTYPE_S);
27277 #endif
27278@@ -219,6 +217,11 @@ void __init setup_per_cpu_areas(void)
27279 /* alrighty, percpu areas up and running */
27280 delta = (unsigned long)pcpu_base_addr - (unsigned long)__per_cpu_start;
27281 for_each_possible_cpu(cpu) {
27282+#ifdef CONFIG_CC_STACKPROTECTOR
27283+#ifdef CONFIG_X86_32
27284+ unsigned long canary = per_cpu(stack_canary.canary, cpu);
27285+#endif
27286+#endif
27287 per_cpu_offset(cpu) = delta + pcpu_unit_offsets[cpu];
27288 per_cpu(this_cpu_off, cpu) = per_cpu_offset(cpu);
27289 per_cpu(cpu_number, cpu) = cpu;
27290@@ -259,6 +262,12 @@ void __init setup_per_cpu_areas(void)
27291 */
27292 set_cpu_numa_node(cpu, early_cpu_to_node(cpu));
27293 #endif
27294+#ifdef CONFIG_CC_STACKPROTECTOR
27295+#ifdef CONFIG_X86_32
27296+ if (!cpu)
27297+ per_cpu(stack_canary.canary, cpu) = canary;
27298+#endif
27299+#endif
27300 /*
27301 * Up to this point, the boot CPU has been using .init.data
27302 * area. Reload any changed state for the boot CPU.
27303diff --git a/arch/x86/kernel/signal.c b/arch/x86/kernel/signal.c
27304index e504246..ba10432 100644
27305--- a/arch/x86/kernel/signal.c
27306+++ b/arch/x86/kernel/signal.c
27307@@ -190,7 +190,7 @@ static unsigned long align_sigframe(unsigned long sp)
27308 * Align the stack pointer according to the i386 ABI,
27309 * i.e. so that on function entry ((sp + 4) & 15) == 0.
27310 */
27311- sp = ((sp + 4) & -16ul) - 4;
27312+ sp = ((sp - 12) & -16ul) - 4;
27313 #else /* !CONFIG_X86_32 */
27314 sp = round_down(sp, 16) - 8;
27315 #endif
27316@@ -298,10 +298,9 @@ __setup_frame(int sig, struct ksignal *ksig, sigset_t *set,
27317 }
27318
27319 if (current->mm->context.vdso)
27320- restorer = current->mm->context.vdso +
27321- selected_vdso32->sym___kernel_sigreturn;
27322+ restorer = (void __force_user *)(current->mm->context.vdso + selected_vdso32->sym___kernel_sigreturn);
27323 else
27324- restorer = &frame->retcode;
27325+ restorer = (void __user *)&frame->retcode;
27326 if (ksig->ka.sa.sa_flags & SA_RESTORER)
27327 restorer = ksig->ka.sa.sa_restorer;
27328
27329@@ -315,7 +314,7 @@ __setup_frame(int sig, struct ksignal *ksig, sigset_t *set,
27330 * reasons and because gdb uses it as a signature to notice
27331 * signal handler stack frames.
27332 */
27333- err |= __put_user(*((u64 *)&retcode), (u64 *)frame->retcode);
27334+ err |= __put_user(*((u64 *)&retcode), (u64 __user *)frame->retcode);
27335
27336 if (err)
27337 return -EFAULT;
27338@@ -362,8 +361,10 @@ static int __setup_rt_frame(int sig, struct ksignal *ksig,
27339 save_altstack_ex(&frame->uc.uc_stack, regs->sp);
27340
27341 /* Set up to return from userspace. */
27342- restorer = current->mm->context.vdso +
27343- selected_vdso32->sym___kernel_rt_sigreturn;
27344+ if (current->mm->context.vdso)
27345+ restorer = (void __force_user *)(current->mm->context.vdso + selected_vdso32->sym___kernel_rt_sigreturn);
27346+ else
27347+ restorer = (void __user *)&frame->retcode;
27348 if (ksig->ka.sa.sa_flags & SA_RESTORER)
27349 restorer = ksig->ka.sa.sa_restorer;
27350 put_user_ex(restorer, &frame->pretcode);
27351@@ -375,7 +376,7 @@ static int __setup_rt_frame(int sig, struct ksignal *ksig,
27352 * reasons and because gdb uses it as a signature to notice
27353 * signal handler stack frames.
27354 */
27355- put_user_ex(*((u64 *)&rt_retcode), (u64 *)frame->retcode);
27356+ put_user_ex(*((u64 *)&rt_retcode), (u64 __user *)frame->retcode);
27357 } put_user_catch(err);
27358
27359 err |= copy_siginfo_to_user(&frame->info, &ksig->info);
27360@@ -611,7 +612,12 @@ setup_rt_frame(struct ksignal *ksig, struct pt_regs *regs)
27361 {
27362 int usig = signr_convert(ksig->sig);
27363 sigset_t *set = sigmask_to_save();
27364- compat_sigset_t *cset = (compat_sigset_t *) set;
27365+ sigset_t sigcopy;
27366+ compat_sigset_t *cset;
27367+
27368+ sigcopy = *set;
27369+
27370+ cset = (compat_sigset_t *) &sigcopy;
27371
27372 /* Set up the stack frame */
27373 if (is_ia32_frame()) {
27374@@ -622,7 +628,7 @@ setup_rt_frame(struct ksignal *ksig, struct pt_regs *regs)
27375 } else if (is_x32_frame()) {
27376 return x32_setup_rt_frame(ksig, cset, regs);
27377 } else {
27378- return __setup_rt_frame(ksig->sig, ksig, set, regs);
27379+ return __setup_rt_frame(ksig->sig, ksig, &sigcopy, regs);
27380 }
27381 }
27382
27383diff --git a/arch/x86/kernel/smp.c b/arch/x86/kernel/smp.c
27384index be8e1bd..a3d93fa 100644
27385--- a/arch/x86/kernel/smp.c
27386+++ b/arch/x86/kernel/smp.c
27387@@ -341,7 +341,7 @@ static int __init nonmi_ipi_setup(char *str)
27388
27389 __setup("nonmi_ipi", nonmi_ipi_setup);
27390
27391-struct smp_ops smp_ops = {
27392+struct smp_ops smp_ops __read_only = {
27393 .smp_prepare_boot_cpu = native_smp_prepare_boot_cpu,
27394 .smp_prepare_cpus = native_smp_prepare_cpus,
27395 .smp_cpus_done = native_smp_cpus_done,
27396diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
27397index febc6aa..37d8edf 100644
27398--- a/arch/x86/kernel/smpboot.c
27399+++ b/arch/x86/kernel/smpboot.c
27400@@ -229,14 +229,17 @@ static void notrace start_secondary(void *unused)
27401
27402 enable_start_cpu0 = 0;
27403
27404-#ifdef CONFIG_X86_32
27405+ /* otherwise gcc will move up smp_processor_id before the cpu_init */
27406+ barrier();
27407+
27408 /* switch away from the initial page table */
27409+#ifdef CONFIG_PAX_PER_CPU_PGD
27410+ load_cr3(get_cpu_pgd(smp_processor_id(), kernel));
27411+#else
27412 load_cr3(swapper_pg_dir);
27413+#endif
27414 __flush_tlb_all();
27415-#endif
27416
27417- /* otherwise gcc will move up smp_processor_id before the cpu_init */
27418- barrier();
27419 /*
27420 * Check TSC synchronization with the BP:
27421 */
27422@@ -800,8 +803,9 @@ static int do_boot_cpu(int apicid, int cpu, struct task_struct *idle)
27423 alternatives_enable_smp();
27424
27425 idle->thread.sp = (unsigned long) (((struct pt_regs *)
27426- (THREAD_SIZE + task_stack_page(idle))) - 1);
27427+ (THREAD_SIZE - 16 + task_stack_page(idle))) - 1);
27428 per_cpu(current_task, cpu) = idle;
27429+ per_cpu(current_tinfo, cpu) = &idle->tinfo;
27430
27431 #ifdef CONFIG_X86_32
27432 /* Stack for startup_32 can be just as for start_secondary onwards */
27433@@ -810,10 +814,10 @@ static int do_boot_cpu(int apicid, int cpu, struct task_struct *idle)
27434 clear_tsk_thread_flag(idle, TIF_FORK);
27435 initial_gs = per_cpu_offset(cpu);
27436 #endif
27437- per_cpu(kernel_stack, cpu) =
27438- (unsigned long)task_stack_page(idle) -
27439- KERNEL_STACK_OFFSET + THREAD_SIZE;
27440+ per_cpu(kernel_stack, cpu) = (unsigned long)task_stack_page(idle) - 16 + THREAD_SIZE;
27441+ pax_open_kernel();
27442 early_gdt_descr.address = (unsigned long)get_cpu_gdt_table(cpu);
27443+ pax_close_kernel();
27444 initial_code = (unsigned long)start_secondary;
27445 stack_start = idle->thread.sp;
27446
27447@@ -953,6 +957,15 @@ int native_cpu_up(unsigned int cpu, struct task_struct *tidle)
27448 /* the FPU context is blank, nobody can own it */
27449 __cpu_disable_lazy_restore(cpu);
27450
27451+#ifdef CONFIG_PAX_PER_CPU_PGD
27452+ clone_pgd_range(get_cpu_pgd(cpu, kernel) + KERNEL_PGD_BOUNDARY,
27453+ swapper_pg_dir + KERNEL_PGD_BOUNDARY,
27454+ KERNEL_PGD_PTRS);
27455+ clone_pgd_range(get_cpu_pgd(cpu, user) + KERNEL_PGD_BOUNDARY,
27456+ swapper_pg_dir + KERNEL_PGD_BOUNDARY,
27457+ KERNEL_PGD_PTRS);
27458+#endif
27459+
27460 err = do_boot_cpu(apicid, cpu, tidle);
27461 if (err) {
27462 pr_err("do_boot_cpu failed(%d) to wakeup CPU#%u\n", err, cpu);
27463diff --git a/arch/x86/kernel/step.c b/arch/x86/kernel/step.c
27464index 9b4d51d..5d28b58 100644
27465--- a/arch/x86/kernel/step.c
27466+++ b/arch/x86/kernel/step.c
27467@@ -27,10 +27,10 @@ unsigned long convert_ip_to_linear(struct task_struct *child, struct pt_regs *re
27468 struct desc_struct *desc;
27469 unsigned long base;
27470
27471- seg &= ~7UL;
27472+ seg >>= 3;
27473
27474 mutex_lock(&child->mm->context.lock);
27475- if (unlikely((seg >> 3) >= child->mm->context.size))
27476+ if (unlikely(seg >= child->mm->context.size))
27477 addr = -1L; /* bogus selector, access would fault */
27478 else {
27479 desc = child->mm->context.ldt + seg;
27480@@ -42,7 +42,8 @@ unsigned long convert_ip_to_linear(struct task_struct *child, struct pt_regs *re
27481 addr += base;
27482 }
27483 mutex_unlock(&child->mm->context.lock);
27484- }
27485+ } else if (seg == __KERNEL_CS || seg == __KERNEXEC_KERNEL_CS)
27486+ addr = ktla_ktva(addr);
27487
27488 return addr;
27489 }
27490@@ -53,6 +54,9 @@ static int is_setting_trap_flag(struct task_struct *child, struct pt_regs *regs)
27491 unsigned char opcode[15];
27492 unsigned long addr = convert_ip_to_linear(child, regs);
27493
27494+ if (addr == -EINVAL)
27495+ return 0;
27496+
27497 copied = access_process_vm(child, addr, opcode, sizeof(opcode), 0);
27498 for (i = 0; i < copied; i++) {
27499 switch (opcode[i]) {
27500diff --git a/arch/x86/kernel/sys_i386_32.c b/arch/x86/kernel/sys_i386_32.c
27501new file mode 100644
27502index 0000000..5877189
27503--- /dev/null
27504+++ b/arch/x86/kernel/sys_i386_32.c
27505@@ -0,0 +1,189 @@
27506+/*
27507+ * This file contains various random system calls that
27508+ * have a non-standard calling sequence on the Linux/i386
27509+ * platform.
27510+ */
27511+
27512+#include <linux/errno.h>
27513+#include <linux/sched.h>
27514+#include <linux/mm.h>
27515+#include <linux/fs.h>
27516+#include <linux/smp.h>
27517+#include <linux/sem.h>
27518+#include <linux/msg.h>
27519+#include <linux/shm.h>
27520+#include <linux/stat.h>
27521+#include <linux/syscalls.h>
27522+#include <linux/mman.h>
27523+#include <linux/file.h>
27524+#include <linux/utsname.h>
27525+#include <linux/ipc.h>
27526+#include <linux/elf.h>
27527+
27528+#include <linux/uaccess.h>
27529+#include <linux/unistd.h>
27530+
27531+#include <asm/syscalls.h>
27532+
27533+int i386_mmap_check(unsigned long addr, unsigned long len, unsigned long flags)
27534+{
27535+ unsigned long pax_task_size = TASK_SIZE;
27536+
27537+#ifdef CONFIG_PAX_SEGMEXEC
27538+ if (current->mm->pax_flags & MF_PAX_SEGMEXEC)
27539+ pax_task_size = SEGMEXEC_TASK_SIZE;
27540+#endif
27541+
27542+ if (flags & MAP_FIXED)
27543+ if (len > pax_task_size || addr > pax_task_size - len)
27544+ return -EINVAL;
27545+
27546+ return 0;
27547+}
27548+
27549+/*
27550+ * Align a virtual address to avoid aliasing in the I$ on AMD F15h.
27551+ */
27552+static unsigned long get_align_mask(void)
27553+{
27554+ if (va_align.flags < 0 || !(va_align.flags & ALIGN_VA_32))
27555+ return 0;
27556+
27557+ if (!(current->flags & PF_RANDOMIZE))
27558+ return 0;
27559+
27560+ return va_align.mask;
27561+}
27562+
27563+unsigned long
27564+arch_get_unmapped_area(struct file *filp, unsigned long addr,
27565+ unsigned long len, unsigned long pgoff, unsigned long flags)
27566+{
27567+ struct mm_struct *mm = current->mm;
27568+ struct vm_area_struct *vma;
27569+ unsigned long pax_task_size = TASK_SIZE;
27570+ struct vm_unmapped_area_info info;
27571+ unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
27572+
27573+#ifdef CONFIG_PAX_SEGMEXEC
27574+ if (mm->pax_flags & MF_PAX_SEGMEXEC)
27575+ pax_task_size = SEGMEXEC_TASK_SIZE;
27576+#endif
27577+
27578+ pax_task_size -= PAGE_SIZE;
27579+
27580+ if (len > pax_task_size)
27581+ return -ENOMEM;
27582+
27583+ if (flags & MAP_FIXED)
27584+ return addr;
27585+
27586+#ifdef CONFIG_PAX_RANDMMAP
27587+ if (!(mm->pax_flags & MF_PAX_RANDMMAP))
27588+#endif
27589+
27590+ if (addr) {
27591+ addr = PAGE_ALIGN(addr);
27592+ if (pax_task_size - len >= addr) {
27593+ vma = find_vma(mm, addr);
27594+ if (check_heap_stack_gap(vma, addr, len, offset))
27595+ return addr;
27596+ }
27597+ }
27598+
27599+ info.flags = 0;
27600+ info.length = len;
27601+ info.align_mask = filp ? get_align_mask() : 0;
27602+ info.align_offset = pgoff << PAGE_SHIFT;
27603+ info.threadstack_offset = offset;
27604+
27605+#ifdef CONFIG_PAX_PAGEEXEC
27606+ if (!(__supported_pte_mask & _PAGE_NX) && (mm->pax_flags & MF_PAX_PAGEEXEC) && (flags & MAP_EXECUTABLE)) {
27607+ info.low_limit = 0x00110000UL;
27608+ info.high_limit = mm->start_code;
27609+
27610+#ifdef CONFIG_PAX_RANDMMAP
27611+ if (mm->pax_flags & MF_PAX_RANDMMAP)
27612+ info.low_limit += mm->delta_mmap & 0x03FFF000UL;
27613+#endif
27614+
27615+ if (info.low_limit < info.high_limit) {
27616+ addr = vm_unmapped_area(&info);
27617+ if (!IS_ERR_VALUE(addr))
27618+ return addr;
27619+ }
27620+ } else
27621+#endif
27622+
27623+ info.low_limit = mm->mmap_base;
27624+ info.high_limit = pax_task_size;
27625+
27626+ return vm_unmapped_area(&info);
27627+}
27628+
27629+unsigned long
27630+arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
27631+ const unsigned long len, const unsigned long pgoff,
27632+ const unsigned long flags)
27633+{
27634+ struct vm_area_struct *vma;
27635+ struct mm_struct *mm = current->mm;
27636+ unsigned long addr = addr0, pax_task_size = TASK_SIZE;
27637+ struct vm_unmapped_area_info info;
27638+ unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
27639+
27640+#ifdef CONFIG_PAX_SEGMEXEC
27641+ if (mm->pax_flags & MF_PAX_SEGMEXEC)
27642+ pax_task_size = SEGMEXEC_TASK_SIZE;
27643+#endif
27644+
27645+ pax_task_size -= PAGE_SIZE;
27646+
27647+ /* requested length too big for entire address space */
27648+ if (len > pax_task_size)
27649+ return -ENOMEM;
27650+
27651+ if (flags & MAP_FIXED)
27652+ return addr;
27653+
27654+#ifdef CONFIG_PAX_PAGEEXEC
27655+ if (!(__supported_pte_mask & _PAGE_NX) && (mm->pax_flags & MF_PAX_PAGEEXEC) && (flags & MAP_EXECUTABLE))
27656+ goto bottomup;
27657+#endif
27658+
27659+#ifdef CONFIG_PAX_RANDMMAP
27660+ if (!(mm->pax_flags & MF_PAX_RANDMMAP))
27661+#endif
27662+
27663+ /* requesting a specific address */
27664+ if (addr) {
27665+ addr = PAGE_ALIGN(addr);
27666+ if (pax_task_size - len >= addr) {
27667+ vma = find_vma(mm, addr);
27668+ if (check_heap_stack_gap(vma, addr, len, offset))
27669+ return addr;
27670+ }
27671+ }
27672+
27673+ info.flags = VM_UNMAPPED_AREA_TOPDOWN;
27674+ info.length = len;
27675+ info.low_limit = PAGE_SIZE;
27676+ info.high_limit = mm->mmap_base;
27677+ info.align_mask = filp ? get_align_mask() : 0;
27678+ info.align_offset = pgoff << PAGE_SHIFT;
27679+ info.threadstack_offset = offset;
27680+
27681+ addr = vm_unmapped_area(&info);
27682+ if (!(addr & ~PAGE_MASK))
27683+ return addr;
27684+ VM_BUG_ON(addr != -ENOMEM);
27685+
27686+bottomup:
27687+ /*
27688+ * A failed mmap() very likely causes application failure,
27689+ * so fall back to the bottom-up function here. This scenario
27690+ * can happen with large stack limits and large mmap()
27691+ * allocations.
27692+ */
27693+ return arch_get_unmapped_area(filp, addr0, len, pgoff, flags);
27694+}
27695diff --git a/arch/x86/kernel/sys_x86_64.c b/arch/x86/kernel/sys_x86_64.c
27696index 30277e2..5664a29 100644
27697--- a/arch/x86/kernel/sys_x86_64.c
27698+++ b/arch/x86/kernel/sys_x86_64.c
27699@@ -81,8 +81,8 @@ out:
27700 return error;
27701 }
27702
27703-static void find_start_end(unsigned long flags, unsigned long *begin,
27704- unsigned long *end)
27705+static void find_start_end(struct mm_struct *mm, unsigned long flags,
27706+ unsigned long *begin, unsigned long *end)
27707 {
27708 if (!test_thread_flag(TIF_ADDR32) && (flags & MAP_32BIT)) {
27709 unsigned long new_begin;
27710@@ -101,7 +101,7 @@ static void find_start_end(unsigned long flags, unsigned long *begin,
27711 *begin = new_begin;
27712 }
27713 } else {
27714- *begin = current->mm->mmap_legacy_base;
27715+ *begin = mm->mmap_legacy_base;
27716 *end = TASK_SIZE;
27717 }
27718 }
27719@@ -114,20 +114,24 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
27720 struct vm_area_struct *vma;
27721 struct vm_unmapped_area_info info;
27722 unsigned long begin, end;
27723+ unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
27724
27725 if (flags & MAP_FIXED)
27726 return addr;
27727
27728- find_start_end(flags, &begin, &end);
27729+ find_start_end(mm, flags, &begin, &end);
27730
27731 if (len > end)
27732 return -ENOMEM;
27733
27734+#ifdef CONFIG_PAX_RANDMMAP
27735+ if (!(mm->pax_flags & MF_PAX_RANDMMAP))
27736+#endif
27737+
27738 if (addr) {
27739 addr = PAGE_ALIGN(addr);
27740 vma = find_vma(mm, addr);
27741- if (end - len >= addr &&
27742- (!vma || addr + len <= vma->vm_start))
27743+ if (end - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
27744 return addr;
27745 }
27746
27747@@ -137,6 +141,7 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
27748 info.high_limit = end;
27749 info.align_mask = filp ? get_align_mask() : 0;
27750 info.align_offset = pgoff << PAGE_SHIFT;
27751+ info.threadstack_offset = offset;
27752 return vm_unmapped_area(&info);
27753 }
27754
27755@@ -149,6 +154,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
27756 struct mm_struct *mm = current->mm;
27757 unsigned long addr = addr0;
27758 struct vm_unmapped_area_info info;
27759+ unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
27760
27761 /* requested length too big for entire address space */
27762 if (len > TASK_SIZE)
27763@@ -161,12 +167,15 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
27764 if (!test_thread_flag(TIF_ADDR32) && (flags & MAP_32BIT))
27765 goto bottomup;
27766
27767+#ifdef CONFIG_PAX_RANDMMAP
27768+ if (!(mm->pax_flags & MF_PAX_RANDMMAP))
27769+#endif
27770+
27771 /* requesting a specific address */
27772 if (addr) {
27773 addr = PAGE_ALIGN(addr);
27774 vma = find_vma(mm, addr);
27775- if (TASK_SIZE - len >= addr &&
27776- (!vma || addr + len <= vma->vm_start))
27777+ if (TASK_SIZE - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
27778 return addr;
27779 }
27780
27781@@ -176,6 +185,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
27782 info.high_limit = mm->mmap_base;
27783 info.align_mask = filp ? get_align_mask() : 0;
27784 info.align_offset = pgoff << PAGE_SHIFT;
27785+ info.threadstack_offset = offset;
27786 addr = vm_unmapped_area(&info);
27787 if (!(addr & ~PAGE_MASK))
27788 return addr;
27789diff --git a/arch/x86/kernel/tboot.c b/arch/x86/kernel/tboot.c
27790index 91a4496..42fc304 100644
27791--- a/arch/x86/kernel/tboot.c
27792+++ b/arch/x86/kernel/tboot.c
27793@@ -44,6 +44,7 @@
27794 #include <asm/setup.h>
27795 #include <asm/e820.h>
27796 #include <asm/io.h>
27797+#include <asm/tlbflush.h>
27798
27799 #include "../realmode/rm/wakeup.h"
27800
27801@@ -221,7 +222,7 @@ static int tboot_setup_sleep(void)
27802
27803 void tboot_shutdown(u32 shutdown_type)
27804 {
27805- void (*shutdown)(void);
27806+ void (* __noreturn shutdown)(void);
27807
27808 if (!tboot_enabled())
27809 return;
27810@@ -242,8 +243,9 @@ void tboot_shutdown(u32 shutdown_type)
27811 tboot->shutdown_type = shutdown_type;
27812
27813 switch_to_tboot_pt();
27814+ cr4_clear_bits(X86_CR4_PCIDE);
27815
27816- shutdown = (void(*)(void))(unsigned long)tboot->shutdown_entry;
27817+ shutdown = (void *)(unsigned long)tboot->shutdown_entry;
27818 shutdown();
27819
27820 /* should not reach here */
27821@@ -310,7 +312,7 @@ static int tboot_extended_sleep(u8 sleep_state, u32 val_a, u32 val_b)
27822 return -ENODEV;
27823 }
27824
27825-static atomic_t ap_wfs_count;
27826+static atomic_unchecked_t ap_wfs_count;
27827
27828 static int tboot_wait_for_aps(int num_aps)
27829 {
27830@@ -334,9 +336,9 @@ static int tboot_cpu_callback(struct notifier_block *nfb, unsigned long action,
27831 {
27832 switch (action) {
27833 case CPU_DYING:
27834- atomic_inc(&ap_wfs_count);
27835+ atomic_inc_unchecked(&ap_wfs_count);
27836 if (num_online_cpus() == 1)
27837- if (tboot_wait_for_aps(atomic_read(&ap_wfs_count)))
27838+ if (tboot_wait_for_aps(atomic_read_unchecked(&ap_wfs_count)))
27839 return NOTIFY_BAD;
27840 break;
27841 }
27842@@ -422,7 +424,7 @@ static __init int tboot_late_init(void)
27843
27844 tboot_create_trampoline();
27845
27846- atomic_set(&ap_wfs_count, 0);
27847+ atomic_set_unchecked(&ap_wfs_count, 0);
27848 register_hotcpu_notifier(&tboot_cpu_notifier);
27849
27850 #ifdef CONFIG_DEBUG_FS
27851diff --git a/arch/x86/kernel/time.c b/arch/x86/kernel/time.c
27852index 25adc0e..1df4349 100644
27853--- a/arch/x86/kernel/time.c
27854+++ b/arch/x86/kernel/time.c
27855@@ -30,9 +30,9 @@ unsigned long profile_pc(struct pt_regs *regs)
27856 {
27857 unsigned long pc = instruction_pointer(regs);
27858
27859- if (!user_mode_vm(regs) && in_lock_functions(pc)) {
27860+ if (!user_mode(regs) && in_lock_functions(pc)) {
27861 #ifdef CONFIG_FRAME_POINTER
27862- return *(unsigned long *)(regs->bp + sizeof(long));
27863+ return ktla_ktva(*(unsigned long *)(regs->bp + sizeof(long)));
27864 #else
27865 unsigned long *sp =
27866 (unsigned long *)kernel_stack_pointer(regs);
27867@@ -41,11 +41,17 @@ unsigned long profile_pc(struct pt_regs *regs)
27868 * or above a saved flags. Eflags has bits 22-31 zero,
27869 * kernel addresses don't.
27870 */
27871+
27872+#ifdef CONFIG_PAX_KERNEXEC
27873+ return ktla_ktva(sp[0]);
27874+#else
27875 if (sp[0] >> 22)
27876 return sp[0];
27877 if (sp[1] >> 22)
27878 return sp[1];
27879 #endif
27880+
27881+#endif
27882 }
27883 return pc;
27884 }
27885diff --git a/arch/x86/kernel/tls.c b/arch/x86/kernel/tls.c
27886index 7fc5e84..c6e445a 100644
27887--- a/arch/x86/kernel/tls.c
27888+++ b/arch/x86/kernel/tls.c
27889@@ -139,6 +139,11 @@ int do_set_thread_area(struct task_struct *p, int idx,
27890 if (idx < GDT_ENTRY_TLS_MIN || idx > GDT_ENTRY_TLS_MAX)
27891 return -EINVAL;
27892
27893+#ifdef CONFIG_PAX_SEGMEXEC
27894+ if ((p->mm->pax_flags & MF_PAX_SEGMEXEC) && (info.contents & MODIFY_LDT_CONTENTS_CODE))
27895+ return -EINVAL;
27896+#endif
27897+
27898 set_tls_desc(p, idx, &info, 1);
27899
27900 return 0;
27901@@ -256,7 +261,7 @@ int regset_tls_set(struct task_struct *target, const struct user_regset *regset,
27902
27903 if (kbuf)
27904 info = kbuf;
27905- else if (__copy_from_user(infobuf, ubuf, count))
27906+ else if (count > sizeof infobuf || __copy_from_user(infobuf, ubuf, count))
27907 return -EFAULT;
27908 else
27909 info = infobuf;
27910diff --git a/arch/x86/kernel/tracepoint.c b/arch/x86/kernel/tracepoint.c
27911index 1c113db..287b42e 100644
27912--- a/arch/x86/kernel/tracepoint.c
27913+++ b/arch/x86/kernel/tracepoint.c
27914@@ -9,11 +9,11 @@
27915 #include <linux/atomic.h>
27916
27917 atomic_t trace_idt_ctr = ATOMIC_INIT(0);
27918-struct desc_ptr trace_idt_descr = { NR_VECTORS * 16 - 1,
27919+const struct desc_ptr trace_idt_descr = { NR_VECTORS * 16 - 1,
27920 (unsigned long) trace_idt_table };
27921
27922 /* No need to be aligned, but done to keep all IDTs defined the same way. */
27923-gate_desc trace_idt_table[NR_VECTORS] __page_aligned_bss;
27924+gate_desc trace_idt_table[NR_VECTORS] __page_aligned_rodata;
27925
27926 static int trace_irq_vector_refcount;
27927 static DEFINE_MUTEX(irq_vector_mutex);
27928diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
27929index 4ff5d16..736e3e1 100644
27930--- a/arch/x86/kernel/traps.c
27931+++ b/arch/x86/kernel/traps.c
27932@@ -68,7 +68,7 @@
27933 #include <asm/proto.h>
27934
27935 /* No need to be aligned, but done to keep all IDTs defined the same way. */
27936-gate_desc debug_idt_table[NR_VECTORS] __page_aligned_bss;
27937+gate_desc debug_idt_table[NR_VECTORS] __page_aligned_rodata;
27938 #else
27939 #include <asm/processor-flags.h>
27940 #include <asm/setup.h>
27941@@ -77,7 +77,7 @@ asmlinkage int system_call(void);
27942 #endif
27943
27944 /* Must be page-aligned because the real IDT is used in a fixmap. */
27945-gate_desc idt_table[NR_VECTORS] __page_aligned_bss;
27946+gate_desc idt_table[NR_VECTORS] __page_aligned_rodata;
27947
27948 DECLARE_BITMAP(used_vectors, NR_VECTORS);
27949 EXPORT_SYMBOL_GPL(used_vectors);
27950@@ -112,7 +112,7 @@ enum ctx_state ist_enter(struct pt_regs *regs)
27951 {
27952 enum ctx_state prev_state;
27953
27954- if (user_mode_vm(regs)) {
27955+ if (user_mode(regs)) {
27956 /* Other than that, we're just an exception. */
27957 prev_state = exception_enter();
27958 } else {
27959@@ -146,7 +146,7 @@ void ist_exit(struct pt_regs *regs, enum ctx_state prev_state)
27960 /* Must be before exception_exit. */
27961 preempt_count_sub(HARDIRQ_OFFSET);
27962
27963- if (user_mode_vm(regs))
27964+ if (user_mode(regs))
27965 return exception_exit(prev_state);
27966 else
27967 rcu_nmi_exit();
27968@@ -158,7 +158,7 @@ void ist_exit(struct pt_regs *regs, enum ctx_state prev_state)
27969 *
27970 * IST exception handlers normally cannot schedule. As a special
27971 * exception, if the exception interrupted userspace code (i.e.
27972- * user_mode_vm(regs) would return true) and the exception was not
27973+ * user_mode(regs) would return true) and the exception was not
27974 * a double fault, it can be safe to schedule. ist_begin_non_atomic()
27975 * begins a non-atomic section within an ist_enter()/ist_exit() region.
27976 * Callers are responsible for enabling interrupts themselves inside
27977@@ -167,7 +167,7 @@ void ist_exit(struct pt_regs *regs, enum ctx_state prev_state)
27978 */
27979 void ist_begin_non_atomic(struct pt_regs *regs)
27980 {
27981- BUG_ON(!user_mode_vm(regs));
27982+ BUG_ON(!user_mode(regs));
27983
27984 /*
27985 * Sanity check: we need to be on the normal thread stack. This
27986@@ -191,11 +191,11 @@ void ist_end_non_atomic(void)
27987 }
27988
27989 static nokprobe_inline int
27990-do_trap_no_signal(struct task_struct *tsk, int trapnr, char *str,
27991+do_trap_no_signal(struct task_struct *tsk, int trapnr, const char *str,
27992 struct pt_regs *regs, long error_code)
27993 {
27994 #ifdef CONFIG_X86_32
27995- if (regs->flags & X86_VM_MASK) {
27996+ if (v8086_mode(regs)) {
27997 /*
27998 * Traps 0, 1, 3, 4, and 5 should be forwarded to vm86.
27999 * On nmi (interrupt 2), do_trap should not be called.
28000@@ -208,12 +208,24 @@ do_trap_no_signal(struct task_struct *tsk, int trapnr, char *str,
28001 return -1;
28002 }
28003 #endif
28004- if (!user_mode(regs)) {
28005+ if (!user_mode_novm(regs)) {
28006 if (!fixup_exception(regs)) {
28007 tsk->thread.error_code = error_code;
28008 tsk->thread.trap_nr = trapnr;
28009+
28010+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
28011+ if (trapnr == X86_TRAP_SS && ((regs->cs & 0xFFFF) == __KERNEL_CS || (regs->cs & 0xFFFF) == __KERNEXEC_KERNEL_CS))
28012+ str = "PAX: suspicious stack segment fault";
28013+#endif
28014+
28015 die(str, regs, error_code);
28016 }
28017+
28018+#ifdef CONFIG_PAX_REFCOUNT
28019+ if (trapnr == X86_TRAP_OF)
28020+ pax_report_refcount_overflow(regs);
28021+#endif
28022+
28023 return 0;
28024 }
28025
28026@@ -252,7 +264,7 @@ static siginfo_t *fill_trap_info(struct pt_regs *regs, int signr, int trapnr,
28027 }
28028
28029 static void
28030-do_trap(int trapnr, int signr, char *str, struct pt_regs *regs,
28031+do_trap(int trapnr, int signr, const char *str, struct pt_regs *regs,
28032 long error_code, siginfo_t *info)
28033 {
28034 struct task_struct *tsk = current;
28035@@ -276,7 +288,7 @@ do_trap(int trapnr, int signr, char *str, struct pt_regs *regs,
28036 if (show_unhandled_signals && unhandled_signal(tsk, signr) &&
28037 printk_ratelimit()) {
28038 pr_info("%s[%d] trap %s ip:%lx sp:%lx error:%lx",
28039- tsk->comm, tsk->pid, str,
28040+ tsk->comm, task_pid_nr(tsk), str,
28041 regs->ip, regs->sp, error_code);
28042 print_vma_addr(" in ", regs->ip);
28043 pr_cont("\n");
28044@@ -358,6 +370,11 @@ dotraplinkage void do_double_fault(struct pt_regs *regs, long error_code)
28045 tsk->thread.error_code = error_code;
28046 tsk->thread.trap_nr = X86_TRAP_DF;
28047
28048+#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
28049+ if ((unsigned long)tsk->stack - regs->sp <= PAGE_SIZE)
28050+ die("grsec: kernel stack overflow detected", regs, error_code);
28051+#endif
28052+
28053 #ifdef CONFIG_DOUBLEFAULT
28054 df_debug(regs, error_code);
28055 #endif
28056@@ -384,7 +401,7 @@ dotraplinkage void do_bounds(struct pt_regs *regs, long error_code)
28057 goto exit;
28058 conditional_sti(regs);
28059
28060- if (!user_mode_vm(regs))
28061+ if (!user_mode(regs))
28062 die("bounds", regs, error_code);
28063
28064 if (!cpu_feature_enabled(X86_FEATURE_MPX)) {
28065@@ -463,7 +480,7 @@ do_general_protection(struct pt_regs *regs, long error_code)
28066 conditional_sti(regs);
28067
28068 #ifdef CONFIG_X86_32
28069- if (regs->flags & X86_VM_MASK) {
28070+ if (v8086_mode(regs)) {
28071 local_irq_enable();
28072 handle_vm86_fault((struct kernel_vm86_regs *) regs, error_code);
28073 goto exit;
28074@@ -471,18 +488,42 @@ do_general_protection(struct pt_regs *regs, long error_code)
28075 #endif
28076
28077 tsk = current;
28078- if (!user_mode(regs)) {
28079+ if (!user_mode_novm(regs)) {
28080 if (fixup_exception(regs))
28081 goto exit;
28082
28083 tsk->thread.error_code = error_code;
28084 tsk->thread.trap_nr = X86_TRAP_GP;
28085 if (notify_die(DIE_GPF, "general protection fault", regs, error_code,
28086- X86_TRAP_GP, SIGSEGV) != NOTIFY_STOP)
28087+ X86_TRAP_GP, SIGSEGV) != NOTIFY_STOP) {
28088+
28089+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
28090+ if ((regs->cs & 0xFFFF) == __KERNEL_CS || (regs->cs & 0xFFFF) == __KERNEXEC_KERNEL_CS)
28091+ die("PAX: suspicious general protection fault", regs, error_code);
28092+ else
28093+#endif
28094+
28095 die("general protection fault", regs, error_code);
28096+ }
28097 goto exit;
28098 }
28099
28100+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_PAGEEXEC)
28101+ if (!(__supported_pte_mask & _PAGE_NX) && tsk->mm && (tsk->mm->pax_flags & MF_PAX_PAGEEXEC)) {
28102+ struct mm_struct *mm = tsk->mm;
28103+ unsigned long limit;
28104+
28105+ down_write(&mm->mmap_sem);
28106+ limit = mm->context.user_cs_limit;
28107+ if (limit < TASK_SIZE) {
28108+ track_exec_limit(mm, limit, TASK_SIZE, VM_EXEC);
28109+ up_write(&mm->mmap_sem);
28110+ return;
28111+ }
28112+ up_write(&mm->mmap_sem);
28113+ }
28114+#endif
28115+
28116 tsk->thread.error_code = error_code;
28117 tsk->thread.trap_nr = X86_TRAP_GP;
28118
28119@@ -581,13 +622,16 @@ struct bad_iret_stack *fixup_bad_iret(struct bad_iret_stack *s)
28120 container_of(task_pt_regs(current),
28121 struct bad_iret_stack, regs);
28122
28123+ if ((current->thread.sp0 ^ (unsigned long)s) < THREAD_SIZE)
28124+ new_stack = s;
28125+
28126 /* Copy the IRET target to the new stack. */
28127 memmove(&new_stack->regs.ip, (void *)s->regs.sp, 5*8);
28128
28129 /* Copy the remainder of the stack from the current stack. */
28130 memmove(new_stack, s, offsetof(struct bad_iret_stack, regs.ip));
28131
28132- BUG_ON(!user_mode_vm(&new_stack->regs));
28133+ BUG_ON(!user_mode(&new_stack->regs));
28134 return new_stack;
28135 }
28136 NOKPROBE_SYMBOL(fixup_bad_iret);
28137@@ -637,7 +681,7 @@ dotraplinkage void do_debug(struct pt_regs *regs, long error_code)
28138 * then it's very likely the result of an icebp/int01 trap.
28139 * User wants a sigtrap for that.
28140 */
28141- if (!dr6 && user_mode_vm(regs))
28142+ if (!dr6 && user_mode(regs))
28143 user_icebp = 1;
28144
28145 /* Catch kmemcheck conditions first of all! */
28146@@ -673,7 +717,7 @@ dotraplinkage void do_debug(struct pt_regs *regs, long error_code)
28147 /* It's safe to allow irq's after DR6 has been saved */
28148 preempt_conditional_sti(regs);
28149
28150- if (regs->flags & X86_VM_MASK) {
28151+ if (v8086_mode(regs)) {
28152 handle_vm86_trap((struct kernel_vm86_regs *) regs, error_code,
28153 X86_TRAP_DB);
28154 preempt_conditional_cli(regs);
28155@@ -688,7 +732,7 @@ dotraplinkage void do_debug(struct pt_regs *regs, long error_code)
28156 * We already checked v86 mode above, so we can check for kernel mode
28157 * by just checking the CPL of CS.
28158 */
28159- if ((dr6 & DR_STEP) && !user_mode(regs)) {
28160+ if ((dr6 & DR_STEP) && !user_mode_novm(regs)) {
28161 tsk->thread.debugreg6 &= ~DR_STEP;
28162 set_tsk_thread_flag(tsk, TIF_SINGLESTEP);
28163 regs->flags &= ~X86_EFLAGS_TF;
28164@@ -721,7 +765,7 @@ static void math_error(struct pt_regs *regs, int error_code, int trapnr)
28165 return;
28166 conditional_sti(regs);
28167
28168- if (!user_mode_vm(regs))
28169+ if (!user_mode(regs))
28170 {
28171 if (!fixup_exception(regs)) {
28172 task->thread.error_code = error_code;
28173diff --git a/arch/x86/kernel/tsc.c b/arch/x86/kernel/tsc.c
28174index 5054497..139f8f8 100644
28175--- a/arch/x86/kernel/tsc.c
28176+++ b/arch/x86/kernel/tsc.c
28177@@ -150,7 +150,7 @@ static void cyc2ns_write_end(int cpu, struct cyc2ns_data *data)
28178 */
28179 smp_wmb();
28180
28181- ACCESS_ONCE(c2n->head) = data;
28182+ ACCESS_ONCE_RW(c2n->head) = data;
28183 }
28184
28185 /*
28186diff --git a/arch/x86/kernel/uprobes.c b/arch/x86/kernel/uprobes.c
28187index 81f8adb0..fff670e 100644
28188--- a/arch/x86/kernel/uprobes.c
28189+++ b/arch/x86/kernel/uprobes.c
28190@@ -912,7 +912,7 @@ int arch_uprobe_exception_notify(struct notifier_block *self, unsigned long val,
28191 int ret = NOTIFY_DONE;
28192
28193 /* We are only interested in userspace traps */
28194- if (regs && !user_mode_vm(regs))
28195+ if (regs && !user_mode(regs))
28196 return NOTIFY_DONE;
28197
28198 switch (val) {
28199@@ -986,7 +986,7 @@ arch_uretprobe_hijack_return_addr(unsigned long trampoline_vaddr, struct pt_regs
28200
28201 if (nleft != rasize) {
28202 pr_err("uprobe: return address clobbered: pid=%d, %%sp=%#lx, "
28203- "%%ip=%#lx\n", current->pid, regs->sp, regs->ip);
28204+ "%%ip=%#lx\n", task_pid_nr(current), regs->sp, regs->ip);
28205
28206 force_sig_info(SIGSEGV, SEND_SIG_FORCED, current);
28207 }
28208diff --git a/arch/x86/kernel/verify_cpu.S b/arch/x86/kernel/verify_cpu.S
28209index b9242ba..50c5edd 100644
28210--- a/arch/x86/kernel/verify_cpu.S
28211+++ b/arch/x86/kernel/verify_cpu.S
28212@@ -20,6 +20,7 @@
28213 * arch/x86/boot/compressed/head_64.S: Boot cpu verification
28214 * arch/x86/kernel/trampoline_64.S: secondary processor verification
28215 * arch/x86/kernel/head_32.S: processor startup
28216+ * arch/x86/kernel/acpi/realmode/wakeup.S: 32bit processor resume
28217 *
28218 * verify_cpu, returns the status of longmode and SSE in register %eax.
28219 * 0: Success 1: Failure
28220diff --git a/arch/x86/kernel/vm86_32.c b/arch/x86/kernel/vm86_32.c
28221index e8edcf5..27f9344 100644
28222--- a/arch/x86/kernel/vm86_32.c
28223+++ b/arch/x86/kernel/vm86_32.c
28224@@ -44,6 +44,7 @@
28225 #include <linux/ptrace.h>
28226 #include <linux/audit.h>
28227 #include <linux/stddef.h>
28228+#include <linux/grsecurity.h>
28229
28230 #include <asm/uaccess.h>
28231 #include <asm/io.h>
28232@@ -150,7 +151,7 @@ struct pt_regs *save_v86_state(struct kernel_vm86_regs *regs)
28233 do_exit(SIGSEGV);
28234 }
28235
28236- tss = &per_cpu(init_tss, get_cpu());
28237+ tss = init_tss + get_cpu();
28238 current->thread.sp0 = current->thread.saved_sp0;
28239 current->thread.sysenter_cs = __KERNEL_CS;
28240 load_sp0(tss, &current->thread);
28241@@ -214,6 +215,14 @@ SYSCALL_DEFINE1(vm86old, struct vm86_struct __user *, v86)
28242
28243 if (tsk->thread.saved_sp0)
28244 return -EPERM;
28245+
28246+#ifdef CONFIG_GRKERNSEC_VM86
28247+ if (!capable(CAP_SYS_RAWIO)) {
28248+ gr_handle_vm86();
28249+ return -EPERM;
28250+ }
28251+#endif
28252+
28253 tmp = copy_vm86_regs_from_user(&info.regs, &v86->regs,
28254 offsetof(struct kernel_vm86_struct, vm86plus) -
28255 sizeof(info.regs));
28256@@ -238,6 +247,13 @@ SYSCALL_DEFINE2(vm86, unsigned long, cmd, unsigned long, arg)
28257 int tmp;
28258 struct vm86plus_struct __user *v86;
28259
28260+#ifdef CONFIG_GRKERNSEC_VM86
28261+ if (!capable(CAP_SYS_RAWIO)) {
28262+ gr_handle_vm86();
28263+ return -EPERM;
28264+ }
28265+#endif
28266+
28267 tsk = current;
28268 switch (cmd) {
28269 case VM86_REQUEST_IRQ:
28270@@ -318,7 +334,7 @@ static void do_sys_vm86(struct kernel_vm86_struct *info, struct task_struct *tsk
28271 tsk->thread.saved_fs = info->regs32->fs;
28272 tsk->thread.saved_gs = get_user_gs(info->regs32);
28273
28274- tss = &per_cpu(init_tss, get_cpu());
28275+ tss = init_tss + get_cpu();
28276 tsk->thread.sp0 = (unsigned long) &info->VM86_TSS_ESP0;
28277 if (cpu_has_sep)
28278 tsk->thread.sysenter_cs = 0;
28279@@ -525,7 +541,7 @@ static void do_int(struct kernel_vm86_regs *regs, int i,
28280 goto cannot_handle;
28281 if (i == 0x21 && is_revectored(AH(regs), &KVM86->int21_revectored))
28282 goto cannot_handle;
28283- intr_ptr = (unsigned long __user *) (i << 2);
28284+ intr_ptr = (__force unsigned long __user *) (i << 2);
28285 if (get_user(segoffs, intr_ptr))
28286 goto cannot_handle;
28287 if ((segoffs >> 16) == BIOSSEG)
28288diff --git a/arch/x86/kernel/vmlinux.lds.S b/arch/x86/kernel/vmlinux.lds.S
28289index 00bf300..129df8e 100644
28290--- a/arch/x86/kernel/vmlinux.lds.S
28291+++ b/arch/x86/kernel/vmlinux.lds.S
28292@@ -26,6 +26,13 @@
28293 #include <asm/page_types.h>
28294 #include <asm/cache.h>
28295 #include <asm/boot.h>
28296+#include <asm/segment.h>
28297+
28298+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
28299+#define __KERNEL_TEXT_OFFSET (LOAD_OFFSET + ____LOAD_PHYSICAL_ADDR)
28300+#else
28301+#define __KERNEL_TEXT_OFFSET 0
28302+#endif
28303
28304 #undef i386 /* in case the preprocessor is a 32bit one */
28305
28306@@ -69,30 +76,43 @@ jiffies_64 = jiffies;
28307
28308 PHDRS {
28309 text PT_LOAD FLAGS(5); /* R_E */
28310+#ifdef CONFIG_X86_32
28311+ module PT_LOAD FLAGS(5); /* R_E */
28312+#endif
28313+#ifdef CONFIG_XEN
28314+ rodata PT_LOAD FLAGS(5); /* R_E */
28315+#else
28316+ rodata PT_LOAD FLAGS(4); /* R__ */
28317+#endif
28318 data PT_LOAD FLAGS(6); /* RW_ */
28319-#ifdef CONFIG_X86_64
28320+ init.begin PT_LOAD FLAGS(6); /* RW_ */
28321 #ifdef CONFIG_SMP
28322 percpu PT_LOAD FLAGS(6); /* RW_ */
28323 #endif
28324+ text.init PT_LOAD FLAGS(5); /* R_E */
28325+ text.exit PT_LOAD FLAGS(5); /* R_E */
28326 init PT_LOAD FLAGS(7); /* RWE */
28327-#endif
28328 note PT_NOTE FLAGS(0); /* ___ */
28329 }
28330
28331 SECTIONS
28332 {
28333 #ifdef CONFIG_X86_32
28334- . = LOAD_OFFSET + LOAD_PHYSICAL_ADDR;
28335- phys_startup_32 = startup_32 - LOAD_OFFSET;
28336+ . = LOAD_OFFSET + ____LOAD_PHYSICAL_ADDR;
28337 #else
28338- . = __START_KERNEL;
28339- phys_startup_64 = startup_64 - LOAD_OFFSET;
28340+ . = __START_KERNEL;
28341 #endif
28342
28343 /* Text and read-only data */
28344- .text : AT(ADDR(.text) - LOAD_OFFSET) {
28345- _text = .;
28346+ .text (. - __KERNEL_TEXT_OFFSET): AT(ADDR(.text) - LOAD_OFFSET + __KERNEL_TEXT_OFFSET) {
28347 /* bootstrapping code */
28348+#ifdef CONFIG_X86_32
28349+ phys_startup_32 = startup_32 - LOAD_OFFSET + __KERNEL_TEXT_OFFSET;
28350+#else
28351+ phys_startup_64 = startup_64 - LOAD_OFFSET + __KERNEL_TEXT_OFFSET;
28352+#endif
28353+ __LOAD_PHYSICAL_ADDR = . - LOAD_OFFSET + __KERNEL_TEXT_OFFSET;
28354+ _text = .;
28355 HEAD_TEXT
28356 . = ALIGN(8);
28357 _stext = .;
28358@@ -104,13 +124,47 @@ SECTIONS
28359 IRQENTRY_TEXT
28360 *(.fixup)
28361 *(.gnu.warning)
28362- /* End of text section */
28363- _etext = .;
28364 } :text = 0x9090
28365
28366- NOTES :text :note
28367+ . += __KERNEL_TEXT_OFFSET;
28368
28369- EXCEPTION_TABLE(16) :text = 0x9090
28370+#ifdef CONFIG_X86_32
28371+ . = ALIGN(PAGE_SIZE);
28372+ .module.text : AT(ADDR(.module.text) - LOAD_OFFSET) {
28373+
28374+#ifdef CONFIG_PAX_KERNEXEC
28375+ MODULES_EXEC_VADDR = .;
28376+ BYTE(0)
28377+ . += (CONFIG_PAX_KERNEXEC_MODULE_TEXT * 1024 * 1024);
28378+ . = ALIGN(HPAGE_SIZE) - 1;
28379+ MODULES_EXEC_END = .;
28380+#endif
28381+
28382+ } :module
28383+#endif
28384+
28385+ .text.end : AT(ADDR(.text.end) - LOAD_OFFSET) {
28386+ /* End of text section */
28387+ BYTE(0)
28388+ _etext = . - __KERNEL_TEXT_OFFSET;
28389+ }
28390+
28391+#ifdef CONFIG_X86_32
28392+ . = ALIGN(PAGE_SIZE);
28393+ .rodata.page_aligned : AT(ADDR(.rodata.page_aligned) - LOAD_OFFSET) {
28394+ . = ALIGN(PAGE_SIZE);
28395+ *(.empty_zero_page)
28396+ *(.initial_pg_fixmap)
28397+ *(.initial_pg_pmd)
28398+ *(.initial_page_table)
28399+ *(.swapper_pg_dir)
28400+ } :rodata
28401+#endif
28402+
28403+ . = ALIGN(PAGE_SIZE);
28404+ NOTES :rodata :note
28405+
28406+ EXCEPTION_TABLE(16) :rodata
28407
28408 #if defined(CONFIG_DEBUG_RODATA)
28409 /* .text should occupy whole number of pages */
28410@@ -122,16 +176,20 @@ SECTIONS
28411
28412 /* Data */
28413 .data : AT(ADDR(.data) - LOAD_OFFSET) {
28414+
28415+#ifdef CONFIG_PAX_KERNEXEC
28416+ . = ALIGN(HPAGE_SIZE);
28417+#else
28418+ . = ALIGN(PAGE_SIZE);
28419+#endif
28420+
28421 /* Start of data section */
28422 _sdata = .;
28423
28424 /* init_task */
28425 INIT_TASK_DATA(THREAD_SIZE)
28426
28427-#ifdef CONFIG_X86_32
28428- /* 32 bit has nosave before _edata */
28429 NOSAVE_DATA
28430-#endif
28431
28432 PAGE_ALIGNED_DATA(PAGE_SIZE)
28433
28434@@ -174,12 +232,19 @@ SECTIONS
28435 . = ALIGN(__vvar_page + PAGE_SIZE, PAGE_SIZE);
28436
28437 /* Init code and data - will be freed after init */
28438- . = ALIGN(PAGE_SIZE);
28439 .init.begin : AT(ADDR(.init.begin) - LOAD_OFFSET) {
28440+ BYTE(0)
28441+
28442+#ifdef CONFIG_PAX_KERNEXEC
28443+ . = ALIGN(HPAGE_SIZE);
28444+#else
28445+ . = ALIGN(PAGE_SIZE);
28446+#endif
28447+
28448 __init_begin = .; /* paired with __init_end */
28449- }
28450+ } :init.begin
28451
28452-#if defined(CONFIG_X86_64) && defined(CONFIG_SMP)
28453+#ifdef CONFIG_SMP
28454 /*
28455 * percpu offsets are zero-based on SMP. PERCPU_VADDR() changes the
28456 * output PHDR, so the next output section - .init.text - should
28457@@ -190,12 +255,27 @@ SECTIONS
28458 "per-CPU data too large - increase CONFIG_PHYSICAL_START")
28459 #endif
28460
28461- INIT_TEXT_SECTION(PAGE_SIZE)
28462-#ifdef CONFIG_X86_64
28463- :init
28464-#endif
28465+ . = ALIGN(PAGE_SIZE);
28466+ init_begin = .;
28467+ .init.text (. - __KERNEL_TEXT_OFFSET): AT(init_begin - LOAD_OFFSET) {
28468+ VMLINUX_SYMBOL(_sinittext) = .;
28469+ INIT_TEXT
28470+ . = ALIGN(PAGE_SIZE);
28471+ } :text.init
28472
28473- INIT_DATA_SECTION(16)
28474+ /*
28475+ * .exit.text is discard at runtime, not link time, to deal with
28476+ * references from .altinstructions and .eh_frame
28477+ */
28478+ .exit.text : AT(ADDR(.exit.text) - LOAD_OFFSET + __KERNEL_TEXT_OFFSET) {
28479+ EXIT_TEXT
28480+ VMLINUX_SYMBOL(_einittext) = .;
28481+ . = ALIGN(16);
28482+ } :text.exit
28483+ . = init_begin + SIZEOF(.init.text) + SIZEOF(.exit.text);
28484+
28485+ . = ALIGN(PAGE_SIZE);
28486+ INIT_DATA_SECTION(16) :init
28487
28488 .x86_cpu_dev.init : AT(ADDR(.x86_cpu_dev.init) - LOAD_OFFSET) {
28489 __x86_cpu_dev_start = .;
28490@@ -266,19 +346,12 @@ SECTIONS
28491 }
28492
28493 . = ALIGN(8);
28494- /*
28495- * .exit.text is discard at runtime, not link time, to deal with
28496- * references from .altinstructions and .eh_frame
28497- */
28498- .exit.text : AT(ADDR(.exit.text) - LOAD_OFFSET) {
28499- EXIT_TEXT
28500- }
28501
28502 .exit.data : AT(ADDR(.exit.data) - LOAD_OFFSET) {
28503 EXIT_DATA
28504 }
28505
28506-#if !defined(CONFIG_X86_64) || !defined(CONFIG_SMP)
28507+#ifndef CONFIG_SMP
28508 PERCPU_SECTION(INTERNODE_CACHE_BYTES)
28509 #endif
28510
28511@@ -297,16 +370,10 @@ SECTIONS
28512 .smp_locks : AT(ADDR(.smp_locks) - LOAD_OFFSET) {
28513 __smp_locks = .;
28514 *(.smp_locks)
28515- . = ALIGN(PAGE_SIZE);
28516 __smp_locks_end = .;
28517+ . = ALIGN(PAGE_SIZE);
28518 }
28519
28520-#ifdef CONFIG_X86_64
28521- .data_nosave : AT(ADDR(.data_nosave) - LOAD_OFFSET) {
28522- NOSAVE_DATA
28523- }
28524-#endif
28525-
28526 /* BSS */
28527 . = ALIGN(PAGE_SIZE);
28528 .bss : AT(ADDR(.bss) - LOAD_OFFSET) {
28529@@ -322,6 +389,7 @@ SECTIONS
28530 __brk_base = .;
28531 . += 64 * 1024; /* 64k alignment slop space */
28532 *(.brk_reservation) /* areas brk users have reserved */
28533+ . = ALIGN(HPAGE_SIZE);
28534 __brk_limit = .;
28535 }
28536
28537@@ -348,13 +416,12 @@ SECTIONS
28538 * for the boot processor.
28539 */
28540 #define INIT_PER_CPU(x) init_per_cpu__##x = x + __per_cpu_load
28541-INIT_PER_CPU(gdt_page);
28542 INIT_PER_CPU(irq_stack_union);
28543
28544 /*
28545 * Build-time check on the image size:
28546 */
28547-. = ASSERT((_end - _text <= KERNEL_IMAGE_SIZE),
28548+. = ASSERT((_end - _text - __KERNEL_TEXT_OFFSET <= KERNEL_IMAGE_SIZE),
28549 "kernel image bigger than KERNEL_IMAGE_SIZE");
28550
28551 #ifdef CONFIG_SMP
28552diff --git a/arch/x86/kernel/vsyscall_64.c b/arch/x86/kernel/vsyscall_64.c
28553index 2dcc6ff..082dc7a 100644
28554--- a/arch/x86/kernel/vsyscall_64.c
28555+++ b/arch/x86/kernel/vsyscall_64.c
28556@@ -38,15 +38,13 @@
28557 #define CREATE_TRACE_POINTS
28558 #include "vsyscall_trace.h"
28559
28560-static enum { EMULATE, NATIVE, NONE } vsyscall_mode = EMULATE;
28561+static enum { EMULATE, NONE } vsyscall_mode = EMULATE;
28562
28563 static int __init vsyscall_setup(char *str)
28564 {
28565 if (str) {
28566 if (!strcmp("emulate", str))
28567 vsyscall_mode = EMULATE;
28568- else if (!strcmp("native", str))
28569- vsyscall_mode = NATIVE;
28570 else if (!strcmp("none", str))
28571 vsyscall_mode = NONE;
28572 else
28573@@ -264,8 +262,7 @@ do_ret:
28574 return true;
28575
28576 sigsegv:
28577- force_sig(SIGSEGV, current);
28578- return true;
28579+ do_group_exit(SIGKILL);
28580 }
28581
28582 /*
28583@@ -283,8 +280,8 @@ static struct vm_operations_struct gate_vma_ops = {
28584 static struct vm_area_struct gate_vma = {
28585 .vm_start = VSYSCALL_ADDR,
28586 .vm_end = VSYSCALL_ADDR + PAGE_SIZE,
28587- .vm_page_prot = PAGE_READONLY_EXEC,
28588- .vm_flags = VM_READ | VM_EXEC,
28589+ .vm_page_prot = PAGE_READONLY,
28590+ .vm_flags = VM_READ,
28591 .vm_ops = &gate_vma_ops,
28592 };
28593
28594@@ -325,10 +322,7 @@ void __init map_vsyscall(void)
28595 unsigned long physaddr_vsyscall = __pa_symbol(&__vsyscall_page);
28596
28597 if (vsyscall_mode != NONE)
28598- __set_fixmap(VSYSCALL_PAGE, physaddr_vsyscall,
28599- vsyscall_mode == NATIVE
28600- ? PAGE_KERNEL_VSYSCALL
28601- : PAGE_KERNEL_VVAR);
28602+ __set_fixmap(VSYSCALL_PAGE, physaddr_vsyscall, PAGE_KERNEL_VVAR);
28603
28604 BUILD_BUG_ON((unsigned long)__fix_to_virt(VSYSCALL_PAGE) !=
28605 (unsigned long)VSYSCALL_ADDR);
28606diff --git a/arch/x86/kernel/x8664_ksyms_64.c b/arch/x86/kernel/x8664_ksyms_64.c
28607index 37d8fa4..66e319a 100644
28608--- a/arch/x86/kernel/x8664_ksyms_64.c
28609+++ b/arch/x86/kernel/x8664_ksyms_64.c
28610@@ -34,8 +34,6 @@ EXPORT_SYMBOL(copy_user_generic_string);
28611 EXPORT_SYMBOL(copy_user_generic_unrolled);
28612 EXPORT_SYMBOL(copy_user_enhanced_fast_string);
28613 EXPORT_SYMBOL(__copy_user_nocache);
28614-EXPORT_SYMBOL(_copy_from_user);
28615-EXPORT_SYMBOL(_copy_to_user);
28616
28617 EXPORT_SYMBOL(copy_page);
28618 EXPORT_SYMBOL(clear_page);
28619@@ -79,3 +77,7 @@ EXPORT_SYMBOL(___preempt_schedule);
28620 EXPORT_SYMBOL(___preempt_schedule_context);
28621 #endif
28622 #endif
28623+
28624+#ifdef CONFIG_PAX_PER_CPU_PGD
28625+EXPORT_SYMBOL(cpu_pgd);
28626+#endif
28627diff --git a/arch/x86/kernel/x86_init.c b/arch/x86/kernel/x86_init.c
28628index 234b072..b7ab191 100644
28629--- a/arch/x86/kernel/x86_init.c
28630+++ b/arch/x86/kernel/x86_init.c
28631@@ -93,7 +93,7 @@ struct x86_cpuinit_ops x86_cpuinit = {
28632 static void default_nmi_init(void) { };
28633 static int default_i8042_detect(void) { return 1; };
28634
28635-struct x86_platform_ops x86_platform = {
28636+struct x86_platform_ops x86_platform __read_only = {
28637 .calibrate_tsc = native_calibrate_tsc,
28638 .get_wallclock = mach_get_cmos_time,
28639 .set_wallclock = mach_set_rtc_mmss,
28640@@ -109,7 +109,7 @@ struct x86_platform_ops x86_platform = {
28641 EXPORT_SYMBOL_GPL(x86_platform);
28642
28643 #if defined(CONFIG_PCI_MSI)
28644-struct x86_msi_ops x86_msi = {
28645+struct x86_msi_ops x86_msi __read_only = {
28646 .setup_msi_irqs = native_setup_msi_irqs,
28647 .compose_msi_msg = native_compose_msi_msg,
28648 .teardown_msi_irq = native_teardown_msi_irq,
28649@@ -140,7 +140,7 @@ void arch_restore_msi_irqs(struct pci_dev *dev)
28650 }
28651 #endif
28652
28653-struct x86_io_apic_ops x86_io_apic_ops = {
28654+struct x86_io_apic_ops x86_io_apic_ops __read_only = {
28655 .init = native_io_apic_init_mappings,
28656 .read = native_io_apic_read,
28657 .write = native_io_apic_write,
28658diff --git a/arch/x86/kernel/xsave.c b/arch/x86/kernel/xsave.c
28659index cdc6cf9..e04f495 100644
28660--- a/arch/x86/kernel/xsave.c
28661+++ b/arch/x86/kernel/xsave.c
28662@@ -168,18 +168,18 @@ static inline int save_xstate_epilog(void __user *buf, int ia32_frame)
28663
28664 /* Setup the bytes not touched by the [f]xsave and reserved for SW. */
28665 sw_bytes = ia32_frame ? &fx_sw_reserved_ia32 : &fx_sw_reserved;
28666- err = __copy_to_user(&x->i387.sw_reserved, sw_bytes, sizeof(*sw_bytes));
28667+ err = __copy_to_user(x->i387.sw_reserved, sw_bytes, sizeof(*sw_bytes));
28668
28669 if (!use_xsave())
28670 return err;
28671
28672- err |= __put_user(FP_XSTATE_MAGIC2, (__u32 *)(buf + xstate_size));
28673+ err |= __put_user(FP_XSTATE_MAGIC2, (__u32 __user *)(buf + xstate_size));
28674
28675 /*
28676 * Read the xstate_bv which we copied (directly from the cpu or
28677 * from the state in task struct) to the user buffers.
28678 */
28679- err |= __get_user(xstate_bv, (__u32 *)&x->xsave_hdr.xstate_bv);
28680+ err |= __get_user(xstate_bv, (__u32 __user *)&x->xsave_hdr.xstate_bv);
28681
28682 /*
28683 * For legacy compatible, we always set FP/SSE bits in the bit
28684@@ -194,7 +194,7 @@ static inline int save_xstate_epilog(void __user *buf, int ia32_frame)
28685 */
28686 xstate_bv |= XSTATE_FPSSE;
28687
28688- err |= __put_user(xstate_bv, (__u32 *)&x->xsave_hdr.xstate_bv);
28689+ err |= __put_user(xstate_bv, (__u32 __user *)&x->xsave_hdr.xstate_bv);
28690
28691 return err;
28692 }
28693@@ -203,6 +203,7 @@ static inline int save_user_xstate(struct xsave_struct __user *buf)
28694 {
28695 int err;
28696
28697+ buf = (struct xsave_struct __user *)____m(buf);
28698 if (use_xsave())
28699 err = xsave_user(buf);
28700 else if (use_fxsr())
28701@@ -313,6 +314,7 @@ sanitize_restored_xstate(struct task_struct *tsk,
28702 */
28703 static inline int restore_user_xstate(void __user *buf, u64 xbv, int fx_only)
28704 {
28705+ buf = (void __user *)____m(buf);
28706 if (use_xsave()) {
28707 if ((unsigned long)buf % 64 || fx_only) {
28708 u64 init_bv = pcntxt_mask & ~XSTATE_FPSSE;
28709diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c
28710index 307f9ec..0d8aa91 100644
28711--- a/arch/x86/kvm/cpuid.c
28712+++ b/arch/x86/kvm/cpuid.c
28713@@ -186,15 +186,20 @@ int kvm_vcpu_ioctl_set_cpuid2(struct kvm_vcpu *vcpu,
28714 struct kvm_cpuid2 *cpuid,
28715 struct kvm_cpuid_entry2 __user *entries)
28716 {
28717- int r;
28718+ int r, i;
28719
28720 r = -E2BIG;
28721 if (cpuid->nent > KVM_MAX_CPUID_ENTRIES)
28722 goto out;
28723 r = -EFAULT;
28724- if (copy_from_user(&vcpu->arch.cpuid_entries, entries,
28725- cpuid->nent * sizeof(struct kvm_cpuid_entry2)))
28726+ if (!access_ok(VERIFY_READ, entries, cpuid->nent * sizeof(struct kvm_cpuid_entry2)))
28727 goto out;
28728+ for (i = 0; i < cpuid->nent; ++i) {
28729+ struct kvm_cpuid_entry2 cpuid_entry;
28730+ if (__copy_from_user(&cpuid_entry, entries + i, sizeof(cpuid_entry)))
28731+ goto out;
28732+ vcpu->arch.cpuid_entries[i] = cpuid_entry;
28733+ }
28734 vcpu->arch.cpuid_nent = cpuid->nent;
28735 kvm_apic_set_version(vcpu);
28736 kvm_x86_ops->cpuid_update(vcpu);
28737@@ -207,15 +212,19 @@ int kvm_vcpu_ioctl_get_cpuid2(struct kvm_vcpu *vcpu,
28738 struct kvm_cpuid2 *cpuid,
28739 struct kvm_cpuid_entry2 __user *entries)
28740 {
28741- int r;
28742+ int r, i;
28743
28744 r = -E2BIG;
28745 if (cpuid->nent < vcpu->arch.cpuid_nent)
28746 goto out;
28747 r = -EFAULT;
28748- if (copy_to_user(entries, &vcpu->arch.cpuid_entries,
28749- vcpu->arch.cpuid_nent * sizeof(struct kvm_cpuid_entry2)))
28750+ if (!access_ok(VERIFY_WRITE, entries, vcpu->arch.cpuid_nent * sizeof(struct kvm_cpuid_entry2)))
28751 goto out;
28752+ for (i = 0; i < vcpu->arch.cpuid_nent; ++i) {
28753+ struct kvm_cpuid_entry2 cpuid_entry = vcpu->arch.cpuid_entries[i];
28754+ if (__copy_to_user(entries + i, &cpuid_entry, sizeof(cpuid_entry)))
28755+ goto out;
28756+ }
28757 return 0;
28758
28759 out:
28760diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
28761index 106c015..2db7161 100644
28762--- a/arch/x86/kvm/emulate.c
28763+++ b/arch/x86/kvm/emulate.c
28764@@ -3572,7 +3572,7 @@ static int check_cr_write(struct x86_emulate_ctxt *ctxt)
28765 int cr = ctxt->modrm_reg;
28766 u64 efer = 0;
28767
28768- static u64 cr_reserved_bits[] = {
28769+ static const u64 cr_reserved_bits[] = {
28770 0xffffffff00000000ULL,
28771 0, 0, 0, /* CR3 checked later */
28772 CR4_RESERVED_BITS,
28773diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
28774index 3cb2b58..83c8e31 100644
28775--- a/arch/x86/kvm/lapic.c
28776+++ b/arch/x86/kvm/lapic.c
28777@@ -56,7 +56,7 @@
28778 #define APIC_BUS_CYCLE_NS 1
28779
28780 /* #define apic_debug(fmt,arg...) printk(KERN_WARNING fmt,##arg) */
28781-#define apic_debug(fmt, arg...)
28782+#define apic_debug(fmt, arg...) do {} while (0)
28783
28784 #define APIC_LVT_NUM 6
28785 /* 14 is the version for Xeon and Pentium 8.4.8*/
28786diff --git a/arch/x86/kvm/lapic.h b/arch/x86/kvm/lapic.h
28787index 0bc6c65..ca4f92d 100644
28788--- a/arch/x86/kvm/lapic.h
28789+++ b/arch/x86/kvm/lapic.h
28790@@ -165,7 +165,7 @@ static inline u16 apic_logical_id(struct kvm_apic_map *map, u32 ldr)
28791
28792 static inline bool kvm_apic_has_events(struct kvm_vcpu *vcpu)
28793 {
28794- return vcpu->arch.apic->pending_events;
28795+ return kvm_vcpu_has_lapic(vcpu) && vcpu->arch.apic->pending_events;
28796 }
28797
28798 bool kvm_apic_pending_eoi(struct kvm_vcpu *vcpu, int vector);
28799diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/paging_tmpl.h
28800index 6e6d115..43fecbf 100644
28801--- a/arch/x86/kvm/paging_tmpl.h
28802+++ b/arch/x86/kvm/paging_tmpl.h
28803@@ -343,7 +343,7 @@ retry_walk:
28804 if (unlikely(kvm_is_error_hva(host_addr)))
28805 goto error;
28806
28807- ptep_user = (pt_element_t __user *)((void *)host_addr + offset);
28808+ ptep_user = (pt_element_t __force_user *)((void *)host_addr + offset);
28809 if (unlikely(__copy_from_user(&pte, ptep_user, sizeof(pte))))
28810 goto error;
28811 walker->ptep_user[walker->level - 1] = ptep_user;
28812diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
28813index a4e62fc..fbbad55 100644
28814--- a/arch/x86/kvm/svm.c
28815+++ b/arch/x86/kvm/svm.c
28816@@ -3568,7 +3568,11 @@ static void reload_tss(struct kvm_vcpu *vcpu)
28817 int cpu = raw_smp_processor_id();
28818
28819 struct svm_cpu_data *sd = per_cpu(svm_data, cpu);
28820+
28821+ pax_open_kernel();
28822 sd->tss_desc->type = 9; /* available 32/64-bit TSS */
28823+ pax_close_kernel();
28824+
28825 load_TR_desc();
28826 }
28827
28828@@ -3964,6 +3968,10 @@ static void svm_vcpu_run(struct kvm_vcpu *vcpu)
28829 #endif
28830 #endif
28831
28832+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_MEMORY_UDEREF)
28833+ __set_fs(current_thread_info()->addr_limit);
28834+#endif
28835+
28836 reload_tss(vcpu);
28837
28838 local_irq_disable();
28839diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
28840index 5318d64..ff5f7aa 100644
28841--- a/arch/x86/kvm/vmx.c
28842+++ b/arch/x86/kvm/vmx.c
28843@@ -1440,12 +1440,12 @@ static void vmcs_write64(unsigned long field, u64 value)
28844 #endif
28845 }
28846
28847-static void vmcs_clear_bits(unsigned long field, u32 mask)
28848+static void vmcs_clear_bits(unsigned long field, unsigned long mask)
28849 {
28850 vmcs_writel(field, vmcs_readl(field) & ~mask);
28851 }
28852
28853-static void vmcs_set_bits(unsigned long field, u32 mask)
28854+static void vmcs_set_bits(unsigned long field, unsigned long mask)
28855 {
28856 vmcs_writel(field, vmcs_readl(field) | mask);
28857 }
28858@@ -1705,7 +1705,11 @@ static void reload_tss(void)
28859 struct desc_struct *descs;
28860
28861 descs = (void *)gdt->address;
28862+
28863+ pax_open_kernel();
28864 descs[GDT_ENTRY_TSS].type = 9; /* available TSS */
28865+ pax_close_kernel();
28866+
28867 load_TR_desc();
28868 }
28869
28870@@ -1941,6 +1945,10 @@ static void vmx_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
28871 vmcs_writel(HOST_TR_BASE, kvm_read_tr_base()); /* 22.2.4 */
28872 vmcs_writel(HOST_GDTR_BASE, gdt->address); /* 22.2.4 */
28873
28874+#ifdef CONFIG_PAX_PER_CPU_PGD
28875+ vmcs_writel(HOST_CR3, read_cr3()); /* 22.2.3 FIXME: shadow tables */
28876+#endif
28877+
28878 rdmsrl(MSR_IA32_SYSENTER_ESP, sysenter_esp);
28879 vmcs_writel(HOST_IA32_SYSENTER_ESP, sysenter_esp); /* 22.2.3 */
28880 vmx->loaded_vmcs->cpu = cpu;
28881@@ -2233,7 +2241,7 @@ static void setup_msrs(struct vcpu_vmx *vmx)
28882 * reads and returns guest's timestamp counter "register"
28883 * guest_tsc = host_tsc + tsc_offset -- 21.3
28884 */
28885-static u64 guest_read_tsc(void)
28886+static u64 __intentional_overflow(-1) guest_read_tsc(void)
28887 {
28888 u64 host_tsc, tsc_offset;
28889
28890@@ -4466,7 +4474,10 @@ static void vmx_set_constant_host_state(struct vcpu_vmx *vmx)
28891 unsigned long cr4;
28892
28893 vmcs_writel(HOST_CR0, read_cr0() & ~X86_CR0_TS); /* 22.2.3 */
28894+
28895+#ifndef CONFIG_PAX_PER_CPU_PGD
28896 vmcs_writel(HOST_CR3, read_cr3()); /* 22.2.3 FIXME: shadow tables */
28897+#endif
28898
28899 /* Save the most likely value for this task's CR4 in the VMCS. */
28900 cr4 = cr4_read_shadow();
28901@@ -4493,7 +4504,7 @@ static void vmx_set_constant_host_state(struct vcpu_vmx *vmx)
28902 vmcs_writel(HOST_IDTR_BASE, dt.address); /* 22.2.4 */
28903 vmx->host_idt_base = dt.address;
28904
28905- vmcs_writel(HOST_RIP, vmx_return); /* 22.2.5 */
28906+ vmcs_writel(HOST_RIP, ktla_ktva(vmx_return)); /* 22.2.5 */
28907
28908 rdmsr(MSR_IA32_SYSENTER_CS, low32, high32);
28909 vmcs_write32(HOST_IA32_SYSENTER_CS, low32);
28910@@ -6104,11 +6115,17 @@ static __init int hardware_setup(void)
28911 * page upon invalidation. No need to do anything if not
28912 * using the APIC_ACCESS_ADDR VMCS field.
28913 */
28914- if (!flexpriority_enabled)
28915- kvm_x86_ops->set_apic_access_page_addr = NULL;
28916+ if (!flexpriority_enabled) {
28917+ pax_open_kernel();
28918+ *(void **)&kvm_x86_ops->set_apic_access_page_addr = NULL;
28919+ pax_close_kernel();
28920+ }
28921
28922- if (!cpu_has_vmx_tpr_shadow())
28923- kvm_x86_ops->update_cr8_intercept = NULL;
28924+ if (!cpu_has_vmx_tpr_shadow()) {
28925+ pax_open_kernel();
28926+ *(void **)&kvm_x86_ops->update_cr8_intercept = NULL;
28927+ pax_close_kernel();
28928+ }
28929
28930 if (enable_ept && !cpu_has_vmx_ept_2m_page())
28931 kvm_disable_largepages();
28932@@ -6119,14 +6136,16 @@ static __init int hardware_setup(void)
28933 if (!cpu_has_vmx_apicv())
28934 enable_apicv = 0;
28935
28936+ pax_open_kernel();
28937 if (enable_apicv)
28938- kvm_x86_ops->update_cr8_intercept = NULL;
28939+ *(void **)&kvm_x86_ops->update_cr8_intercept = NULL;
28940 else {
28941- kvm_x86_ops->hwapic_irr_update = NULL;
28942- kvm_x86_ops->hwapic_isr_update = NULL;
28943- kvm_x86_ops->deliver_posted_interrupt = NULL;
28944- kvm_x86_ops->sync_pir_to_irr = vmx_sync_pir_to_irr_dummy;
28945+ *(void **)&kvm_x86_ops->hwapic_irr_update = NULL;
28946+ *(void **)&kvm_x86_ops->hwapic_isr_update = NULL;
28947+ *(void **)&kvm_x86_ops->deliver_posted_interrupt = NULL;
28948+ *(void **)&kvm_x86_ops->sync_pir_to_irr = vmx_sync_pir_to_irr_dummy;
28949 }
28950+ pax_close_kernel();
28951
28952 vmx_disable_intercept_for_msr(MSR_FS_BASE, false);
28953 vmx_disable_intercept_for_msr(MSR_GS_BASE, false);
28954@@ -6179,10 +6198,12 @@ static __init int hardware_setup(void)
28955 enable_pml = 0;
28956
28957 if (!enable_pml) {
28958- kvm_x86_ops->slot_enable_log_dirty = NULL;
28959- kvm_x86_ops->slot_disable_log_dirty = NULL;
28960- kvm_x86_ops->flush_log_dirty = NULL;
28961- kvm_x86_ops->enable_log_dirty_pt_masked = NULL;
28962+ pax_open_kernel();
28963+ *(void **)&kvm_x86_ops->slot_enable_log_dirty = NULL;
28964+ *(void **)&kvm_x86_ops->slot_disable_log_dirty = NULL;
28965+ *(void **)&kvm_x86_ops->flush_log_dirty = NULL;
28966+ *(void **)&kvm_x86_ops->enable_log_dirty_pt_masked = NULL;
28967+ pax_close_kernel();
28968 }
28969
28970 return alloc_kvm_area();
28971@@ -8227,6 +8248,12 @@ static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu)
28972 "jmp 2f \n\t"
28973 "1: " __ex(ASM_VMX_VMRESUME) "\n\t"
28974 "2: "
28975+
28976+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
28977+ "ljmp %[cs],$3f\n\t"
28978+ "3: "
28979+#endif
28980+
28981 /* Save guest registers, load host registers, keep flags */
28982 "mov %0, %c[wordsize](%%" _ASM_SP ") \n\t"
28983 "pop %0 \n\t"
28984@@ -8279,6 +8306,11 @@ static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu)
28985 #endif
28986 [cr2]"i"(offsetof(struct vcpu_vmx, vcpu.arch.cr2)),
28987 [wordsize]"i"(sizeof(ulong))
28988+
28989+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
28990+ ,[cs]"i"(__KERNEL_CS)
28991+#endif
28992+
28993 : "cc", "memory"
28994 #ifdef CONFIG_X86_64
28995 , "rax", "rbx", "rdi", "rsi"
28996@@ -8292,7 +8324,7 @@ static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu)
28997 if (debugctlmsr)
28998 update_debugctlmsr(debugctlmsr);
28999
29000-#ifndef CONFIG_X86_64
29001+#ifdef CONFIG_X86_32
29002 /*
29003 * The sysexit path does not restore ds/es, so we must set them to
29004 * a reasonable value ourselves.
29005@@ -8301,8 +8333,18 @@ static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu)
29006 * may be executed in interrupt context, which saves and restore segments
29007 * around it, nullifying its effect.
29008 */
29009- loadsegment(ds, __USER_DS);
29010- loadsegment(es, __USER_DS);
29011+ loadsegment(ds, __KERNEL_DS);
29012+ loadsegment(es, __KERNEL_DS);
29013+ loadsegment(ss, __KERNEL_DS);
29014+
29015+#ifdef CONFIG_PAX_KERNEXEC
29016+ loadsegment(fs, __KERNEL_PERCPU);
29017+#endif
29018+
29019+#ifdef CONFIG_PAX_MEMORY_UDEREF
29020+ __set_fs(current_thread_info()->addr_limit);
29021+#endif
29022+
29023 #endif
29024
29025 vcpu->arch.regs_avail = ~((1 << VCPU_REGS_RIP) | (1 << VCPU_REGS_RSP)
29026diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
29027index 8838057..8f42ce3 100644
29028--- a/arch/x86/kvm/x86.c
29029+++ b/arch/x86/kvm/x86.c
29030@@ -1895,8 +1895,8 @@ static int xen_hvm_config(struct kvm_vcpu *vcpu, u64 data)
29031 {
29032 struct kvm *kvm = vcpu->kvm;
29033 int lm = is_long_mode(vcpu);
29034- u8 *blob_addr = lm ? (u8 *)(long)kvm->arch.xen_hvm_config.blob_addr_64
29035- : (u8 *)(long)kvm->arch.xen_hvm_config.blob_addr_32;
29036+ u8 __user *blob_addr = lm ? (u8 __user *)(long)kvm->arch.xen_hvm_config.blob_addr_64
29037+ : (u8 __user *)(long)kvm->arch.xen_hvm_config.blob_addr_32;
29038 u8 blob_size = lm ? kvm->arch.xen_hvm_config.blob_size_64
29039 : kvm->arch.xen_hvm_config.blob_size_32;
29040 u32 page_num = data & ~PAGE_MASK;
29041@@ -2833,6 +2833,8 @@ long kvm_arch_dev_ioctl(struct file *filp,
29042 if (n < msr_list.nmsrs)
29043 goto out;
29044 r = -EFAULT;
29045+ if (num_msrs_to_save > ARRAY_SIZE(msrs_to_save))
29046+ goto out;
29047 if (copy_to_user(user_msr_list->indices, &msrs_to_save,
29048 num_msrs_to_save * sizeof(u32)))
29049 goto out;
29050@@ -5737,7 +5739,7 @@ static struct notifier_block pvclock_gtod_notifier = {
29051 };
29052 #endif
29053
29054-int kvm_arch_init(void *opaque)
29055+int kvm_arch_init(const void *opaque)
29056 {
29057 int r;
29058 struct kvm_x86_ops *ops = opaque;
29059diff --git a/arch/x86/lguest/boot.c b/arch/x86/lguest/boot.c
29060index ac4453d..1f43bf3 100644
29061--- a/arch/x86/lguest/boot.c
29062+++ b/arch/x86/lguest/boot.c
29063@@ -1340,9 +1340,10 @@ static __init int early_put_chars(u32 vtermno, const char *buf, int count)
29064 * Rebooting also tells the Host we're finished, but the RESTART flag tells the
29065 * Launcher to reboot us.
29066 */
29067-static void lguest_restart(char *reason)
29068+static __noreturn void lguest_restart(char *reason)
29069 {
29070 hcall(LHCALL_SHUTDOWN, __pa(reason), LGUEST_SHUTDOWN_RESTART, 0, 0);
29071+ BUG();
29072 }
29073
29074 /*G:050
29075diff --git a/arch/x86/lib/atomic64_386_32.S b/arch/x86/lib/atomic64_386_32.S
29076index 00933d5..3a64af9 100644
29077--- a/arch/x86/lib/atomic64_386_32.S
29078+++ b/arch/x86/lib/atomic64_386_32.S
29079@@ -48,6 +48,10 @@ BEGIN(read)
29080 movl (v), %eax
29081 movl 4(v), %edx
29082 RET_ENDP
29083+BEGIN(read_unchecked)
29084+ movl (v), %eax
29085+ movl 4(v), %edx
29086+RET_ENDP
29087 #undef v
29088
29089 #define v %esi
29090@@ -55,6 +59,10 @@ BEGIN(set)
29091 movl %ebx, (v)
29092 movl %ecx, 4(v)
29093 RET_ENDP
29094+BEGIN(set_unchecked)
29095+ movl %ebx, (v)
29096+ movl %ecx, 4(v)
29097+RET_ENDP
29098 #undef v
29099
29100 #define v %esi
29101@@ -70,6 +78,20 @@ RET_ENDP
29102 BEGIN(add)
29103 addl %eax, (v)
29104 adcl %edx, 4(v)
29105+
29106+#ifdef CONFIG_PAX_REFCOUNT
29107+ jno 0f
29108+ subl %eax, (v)
29109+ sbbl %edx, 4(v)
29110+ int $4
29111+0:
29112+ _ASM_EXTABLE(0b, 0b)
29113+#endif
29114+
29115+RET_ENDP
29116+BEGIN(add_unchecked)
29117+ addl %eax, (v)
29118+ adcl %edx, 4(v)
29119 RET_ENDP
29120 #undef v
29121
29122@@ -77,6 +99,24 @@ RET_ENDP
29123 BEGIN(add_return)
29124 addl (v), %eax
29125 adcl 4(v), %edx
29126+
29127+#ifdef CONFIG_PAX_REFCOUNT
29128+ into
29129+1234:
29130+ _ASM_EXTABLE(1234b, 2f)
29131+#endif
29132+
29133+ movl %eax, (v)
29134+ movl %edx, 4(v)
29135+
29136+#ifdef CONFIG_PAX_REFCOUNT
29137+2:
29138+#endif
29139+
29140+RET_ENDP
29141+BEGIN(add_return_unchecked)
29142+ addl (v), %eax
29143+ adcl 4(v), %edx
29144 movl %eax, (v)
29145 movl %edx, 4(v)
29146 RET_ENDP
29147@@ -86,6 +126,20 @@ RET_ENDP
29148 BEGIN(sub)
29149 subl %eax, (v)
29150 sbbl %edx, 4(v)
29151+
29152+#ifdef CONFIG_PAX_REFCOUNT
29153+ jno 0f
29154+ addl %eax, (v)
29155+ adcl %edx, 4(v)
29156+ int $4
29157+0:
29158+ _ASM_EXTABLE(0b, 0b)
29159+#endif
29160+
29161+RET_ENDP
29162+BEGIN(sub_unchecked)
29163+ subl %eax, (v)
29164+ sbbl %edx, 4(v)
29165 RET_ENDP
29166 #undef v
29167
29168@@ -96,6 +150,27 @@ BEGIN(sub_return)
29169 sbbl $0, %edx
29170 addl (v), %eax
29171 adcl 4(v), %edx
29172+
29173+#ifdef CONFIG_PAX_REFCOUNT
29174+ into
29175+1234:
29176+ _ASM_EXTABLE(1234b, 2f)
29177+#endif
29178+
29179+ movl %eax, (v)
29180+ movl %edx, 4(v)
29181+
29182+#ifdef CONFIG_PAX_REFCOUNT
29183+2:
29184+#endif
29185+
29186+RET_ENDP
29187+BEGIN(sub_return_unchecked)
29188+ negl %edx
29189+ negl %eax
29190+ sbbl $0, %edx
29191+ addl (v), %eax
29192+ adcl 4(v), %edx
29193 movl %eax, (v)
29194 movl %edx, 4(v)
29195 RET_ENDP
29196@@ -105,6 +180,20 @@ RET_ENDP
29197 BEGIN(inc)
29198 addl $1, (v)
29199 adcl $0, 4(v)
29200+
29201+#ifdef CONFIG_PAX_REFCOUNT
29202+ jno 0f
29203+ subl $1, (v)
29204+ sbbl $0, 4(v)
29205+ int $4
29206+0:
29207+ _ASM_EXTABLE(0b, 0b)
29208+#endif
29209+
29210+RET_ENDP
29211+BEGIN(inc_unchecked)
29212+ addl $1, (v)
29213+ adcl $0, 4(v)
29214 RET_ENDP
29215 #undef v
29216
29217@@ -114,6 +203,26 @@ BEGIN(inc_return)
29218 movl 4(v), %edx
29219 addl $1, %eax
29220 adcl $0, %edx
29221+
29222+#ifdef CONFIG_PAX_REFCOUNT
29223+ into
29224+1234:
29225+ _ASM_EXTABLE(1234b, 2f)
29226+#endif
29227+
29228+ movl %eax, (v)
29229+ movl %edx, 4(v)
29230+
29231+#ifdef CONFIG_PAX_REFCOUNT
29232+2:
29233+#endif
29234+
29235+RET_ENDP
29236+BEGIN(inc_return_unchecked)
29237+ movl (v), %eax
29238+ movl 4(v), %edx
29239+ addl $1, %eax
29240+ adcl $0, %edx
29241 movl %eax, (v)
29242 movl %edx, 4(v)
29243 RET_ENDP
29244@@ -123,6 +232,20 @@ RET_ENDP
29245 BEGIN(dec)
29246 subl $1, (v)
29247 sbbl $0, 4(v)
29248+
29249+#ifdef CONFIG_PAX_REFCOUNT
29250+ jno 0f
29251+ addl $1, (v)
29252+ adcl $0, 4(v)
29253+ int $4
29254+0:
29255+ _ASM_EXTABLE(0b, 0b)
29256+#endif
29257+
29258+RET_ENDP
29259+BEGIN(dec_unchecked)
29260+ subl $1, (v)
29261+ sbbl $0, 4(v)
29262 RET_ENDP
29263 #undef v
29264
29265@@ -132,6 +255,26 @@ BEGIN(dec_return)
29266 movl 4(v), %edx
29267 subl $1, %eax
29268 sbbl $0, %edx
29269+
29270+#ifdef CONFIG_PAX_REFCOUNT
29271+ into
29272+1234:
29273+ _ASM_EXTABLE(1234b, 2f)
29274+#endif
29275+
29276+ movl %eax, (v)
29277+ movl %edx, 4(v)
29278+
29279+#ifdef CONFIG_PAX_REFCOUNT
29280+2:
29281+#endif
29282+
29283+RET_ENDP
29284+BEGIN(dec_return_unchecked)
29285+ movl (v), %eax
29286+ movl 4(v), %edx
29287+ subl $1, %eax
29288+ sbbl $0, %edx
29289 movl %eax, (v)
29290 movl %edx, 4(v)
29291 RET_ENDP
29292@@ -143,6 +286,13 @@ BEGIN(add_unless)
29293 adcl %edx, %edi
29294 addl (v), %eax
29295 adcl 4(v), %edx
29296+
29297+#ifdef CONFIG_PAX_REFCOUNT
29298+ into
29299+1234:
29300+ _ASM_EXTABLE(1234b, 2f)
29301+#endif
29302+
29303 cmpl %eax, %ecx
29304 je 3f
29305 1:
29306@@ -168,6 +318,13 @@ BEGIN(inc_not_zero)
29307 1:
29308 addl $1, %eax
29309 adcl $0, %edx
29310+
29311+#ifdef CONFIG_PAX_REFCOUNT
29312+ into
29313+1234:
29314+ _ASM_EXTABLE(1234b, 2f)
29315+#endif
29316+
29317 movl %eax, (v)
29318 movl %edx, 4(v)
29319 movl $1, %eax
29320@@ -186,6 +343,13 @@ BEGIN(dec_if_positive)
29321 movl 4(v), %edx
29322 subl $1, %eax
29323 sbbl $0, %edx
29324+
29325+#ifdef CONFIG_PAX_REFCOUNT
29326+ into
29327+1234:
29328+ _ASM_EXTABLE(1234b, 1f)
29329+#endif
29330+
29331 js 1f
29332 movl %eax, (v)
29333 movl %edx, 4(v)
29334diff --git a/arch/x86/lib/atomic64_cx8_32.S b/arch/x86/lib/atomic64_cx8_32.S
29335index f5cc9eb..51fa319 100644
29336--- a/arch/x86/lib/atomic64_cx8_32.S
29337+++ b/arch/x86/lib/atomic64_cx8_32.S
29338@@ -35,10 +35,20 @@ ENTRY(atomic64_read_cx8)
29339 CFI_STARTPROC
29340
29341 read64 %ecx
29342+ pax_force_retaddr
29343 ret
29344 CFI_ENDPROC
29345 ENDPROC(atomic64_read_cx8)
29346
29347+ENTRY(atomic64_read_unchecked_cx8)
29348+ CFI_STARTPROC
29349+
29350+ read64 %ecx
29351+ pax_force_retaddr
29352+ ret
29353+ CFI_ENDPROC
29354+ENDPROC(atomic64_read_unchecked_cx8)
29355+
29356 ENTRY(atomic64_set_cx8)
29357 CFI_STARTPROC
29358
29359@@ -48,10 +58,25 @@ ENTRY(atomic64_set_cx8)
29360 cmpxchg8b (%esi)
29361 jne 1b
29362
29363+ pax_force_retaddr
29364 ret
29365 CFI_ENDPROC
29366 ENDPROC(atomic64_set_cx8)
29367
29368+ENTRY(atomic64_set_unchecked_cx8)
29369+ CFI_STARTPROC
29370+
29371+1:
29372+/* we don't need LOCK_PREFIX since aligned 64-bit writes
29373+ * are atomic on 586 and newer */
29374+ cmpxchg8b (%esi)
29375+ jne 1b
29376+
29377+ pax_force_retaddr
29378+ ret
29379+ CFI_ENDPROC
29380+ENDPROC(atomic64_set_unchecked_cx8)
29381+
29382 ENTRY(atomic64_xchg_cx8)
29383 CFI_STARTPROC
29384
29385@@ -60,12 +85,13 @@ ENTRY(atomic64_xchg_cx8)
29386 cmpxchg8b (%esi)
29387 jne 1b
29388
29389+ pax_force_retaddr
29390 ret
29391 CFI_ENDPROC
29392 ENDPROC(atomic64_xchg_cx8)
29393
29394-.macro addsub_return func ins insc
29395-ENTRY(atomic64_\func\()_return_cx8)
29396+.macro addsub_return func ins insc unchecked=""
29397+ENTRY(atomic64_\func\()_return\unchecked\()_cx8)
29398 CFI_STARTPROC
29399 SAVE ebp
29400 SAVE ebx
29401@@ -82,27 +108,44 @@ ENTRY(atomic64_\func\()_return_cx8)
29402 movl %edx, %ecx
29403 \ins\()l %esi, %ebx
29404 \insc\()l %edi, %ecx
29405+
29406+.ifb \unchecked
29407+#ifdef CONFIG_PAX_REFCOUNT
29408+ into
29409+2:
29410+ _ASM_EXTABLE(2b, 3f)
29411+#endif
29412+.endif
29413+
29414 LOCK_PREFIX
29415 cmpxchg8b (%ebp)
29416 jne 1b
29417-
29418-10:
29419 movl %ebx, %eax
29420 movl %ecx, %edx
29421+
29422+.ifb \unchecked
29423+#ifdef CONFIG_PAX_REFCOUNT
29424+3:
29425+#endif
29426+.endif
29427+
29428 RESTORE edi
29429 RESTORE esi
29430 RESTORE ebx
29431 RESTORE ebp
29432+ pax_force_retaddr
29433 ret
29434 CFI_ENDPROC
29435-ENDPROC(atomic64_\func\()_return_cx8)
29436+ENDPROC(atomic64_\func\()_return\unchecked\()_cx8)
29437 .endm
29438
29439 addsub_return add add adc
29440 addsub_return sub sub sbb
29441+addsub_return add add adc _unchecked
29442+addsub_return sub sub sbb _unchecked
29443
29444-.macro incdec_return func ins insc
29445-ENTRY(atomic64_\func\()_return_cx8)
29446+.macro incdec_return func ins insc unchecked=""
29447+ENTRY(atomic64_\func\()_return\unchecked\()_cx8)
29448 CFI_STARTPROC
29449 SAVE ebx
29450
29451@@ -112,21 +155,39 @@ ENTRY(atomic64_\func\()_return_cx8)
29452 movl %edx, %ecx
29453 \ins\()l $1, %ebx
29454 \insc\()l $0, %ecx
29455+
29456+.ifb \unchecked
29457+#ifdef CONFIG_PAX_REFCOUNT
29458+ into
29459+2:
29460+ _ASM_EXTABLE(2b, 3f)
29461+#endif
29462+.endif
29463+
29464 LOCK_PREFIX
29465 cmpxchg8b (%esi)
29466 jne 1b
29467
29468-10:
29469 movl %ebx, %eax
29470 movl %ecx, %edx
29471+
29472+.ifb \unchecked
29473+#ifdef CONFIG_PAX_REFCOUNT
29474+3:
29475+#endif
29476+.endif
29477+
29478 RESTORE ebx
29479+ pax_force_retaddr
29480 ret
29481 CFI_ENDPROC
29482-ENDPROC(atomic64_\func\()_return_cx8)
29483+ENDPROC(atomic64_\func\()_return\unchecked\()_cx8)
29484 .endm
29485
29486 incdec_return inc add adc
29487 incdec_return dec sub sbb
29488+incdec_return inc add adc _unchecked
29489+incdec_return dec sub sbb _unchecked
29490
29491 ENTRY(atomic64_dec_if_positive_cx8)
29492 CFI_STARTPROC
29493@@ -138,6 +199,13 @@ ENTRY(atomic64_dec_if_positive_cx8)
29494 movl %edx, %ecx
29495 subl $1, %ebx
29496 sbb $0, %ecx
29497+
29498+#ifdef CONFIG_PAX_REFCOUNT
29499+ into
29500+1234:
29501+ _ASM_EXTABLE(1234b, 2f)
29502+#endif
29503+
29504 js 2f
29505 LOCK_PREFIX
29506 cmpxchg8b (%esi)
29507@@ -147,6 +215,7 @@ ENTRY(atomic64_dec_if_positive_cx8)
29508 movl %ebx, %eax
29509 movl %ecx, %edx
29510 RESTORE ebx
29511+ pax_force_retaddr
29512 ret
29513 CFI_ENDPROC
29514 ENDPROC(atomic64_dec_if_positive_cx8)
29515@@ -171,6 +240,13 @@ ENTRY(atomic64_add_unless_cx8)
29516 movl %edx, %ecx
29517 addl %ebp, %ebx
29518 adcl %edi, %ecx
29519+
29520+#ifdef CONFIG_PAX_REFCOUNT
29521+ into
29522+1234:
29523+ _ASM_EXTABLE(1234b, 3f)
29524+#endif
29525+
29526 LOCK_PREFIX
29527 cmpxchg8b (%esi)
29528 jne 1b
29529@@ -181,6 +257,7 @@ ENTRY(atomic64_add_unless_cx8)
29530 CFI_ADJUST_CFA_OFFSET -8
29531 RESTORE ebx
29532 RESTORE ebp
29533+ pax_force_retaddr
29534 ret
29535 4:
29536 cmpl %edx, 4(%esp)
29537@@ -203,6 +280,13 @@ ENTRY(atomic64_inc_not_zero_cx8)
29538 xorl %ecx, %ecx
29539 addl $1, %ebx
29540 adcl %edx, %ecx
29541+
29542+#ifdef CONFIG_PAX_REFCOUNT
29543+ into
29544+1234:
29545+ _ASM_EXTABLE(1234b, 3f)
29546+#endif
29547+
29548 LOCK_PREFIX
29549 cmpxchg8b (%esi)
29550 jne 1b
29551@@ -210,6 +294,7 @@ ENTRY(atomic64_inc_not_zero_cx8)
29552 movl $1, %eax
29553 3:
29554 RESTORE ebx
29555+ pax_force_retaddr
29556 ret
29557 CFI_ENDPROC
29558 ENDPROC(atomic64_inc_not_zero_cx8)
29559diff --git a/arch/x86/lib/checksum_32.S b/arch/x86/lib/checksum_32.S
29560index e78b8eee..7e173a8 100644
29561--- a/arch/x86/lib/checksum_32.S
29562+++ b/arch/x86/lib/checksum_32.S
29563@@ -29,7 +29,8 @@
29564 #include <asm/dwarf2.h>
29565 #include <asm/errno.h>
29566 #include <asm/asm.h>
29567-
29568+#include <asm/segment.h>
29569+
29570 /*
29571 * computes a partial checksum, e.g. for TCP/UDP fragments
29572 */
29573@@ -293,9 +294,24 @@ unsigned int csum_partial_copy_generic (const char *src, char *dst,
29574
29575 #define ARGBASE 16
29576 #define FP 12
29577-
29578-ENTRY(csum_partial_copy_generic)
29579+
29580+ENTRY(csum_partial_copy_generic_to_user)
29581 CFI_STARTPROC
29582+
29583+#ifdef CONFIG_PAX_MEMORY_UDEREF
29584+ pushl_cfi %gs
29585+ popl_cfi %es
29586+ jmp csum_partial_copy_generic
29587+#endif
29588+
29589+ENTRY(csum_partial_copy_generic_from_user)
29590+
29591+#ifdef CONFIG_PAX_MEMORY_UDEREF
29592+ pushl_cfi %gs
29593+ popl_cfi %ds
29594+#endif
29595+
29596+ENTRY(csum_partial_copy_generic)
29597 subl $4,%esp
29598 CFI_ADJUST_CFA_OFFSET 4
29599 pushl_cfi %edi
29600@@ -317,7 +333,7 @@ ENTRY(csum_partial_copy_generic)
29601 jmp 4f
29602 SRC(1: movw (%esi), %bx )
29603 addl $2, %esi
29604-DST( movw %bx, (%edi) )
29605+DST( movw %bx, %es:(%edi) )
29606 addl $2, %edi
29607 addw %bx, %ax
29608 adcl $0, %eax
29609@@ -329,30 +345,30 @@ DST( movw %bx, (%edi) )
29610 SRC(1: movl (%esi), %ebx )
29611 SRC( movl 4(%esi), %edx )
29612 adcl %ebx, %eax
29613-DST( movl %ebx, (%edi) )
29614+DST( movl %ebx, %es:(%edi) )
29615 adcl %edx, %eax
29616-DST( movl %edx, 4(%edi) )
29617+DST( movl %edx, %es:4(%edi) )
29618
29619 SRC( movl 8(%esi), %ebx )
29620 SRC( movl 12(%esi), %edx )
29621 adcl %ebx, %eax
29622-DST( movl %ebx, 8(%edi) )
29623+DST( movl %ebx, %es:8(%edi) )
29624 adcl %edx, %eax
29625-DST( movl %edx, 12(%edi) )
29626+DST( movl %edx, %es:12(%edi) )
29627
29628 SRC( movl 16(%esi), %ebx )
29629 SRC( movl 20(%esi), %edx )
29630 adcl %ebx, %eax
29631-DST( movl %ebx, 16(%edi) )
29632+DST( movl %ebx, %es:16(%edi) )
29633 adcl %edx, %eax
29634-DST( movl %edx, 20(%edi) )
29635+DST( movl %edx, %es:20(%edi) )
29636
29637 SRC( movl 24(%esi), %ebx )
29638 SRC( movl 28(%esi), %edx )
29639 adcl %ebx, %eax
29640-DST( movl %ebx, 24(%edi) )
29641+DST( movl %ebx, %es:24(%edi) )
29642 adcl %edx, %eax
29643-DST( movl %edx, 28(%edi) )
29644+DST( movl %edx, %es:28(%edi) )
29645
29646 lea 32(%esi), %esi
29647 lea 32(%edi), %edi
29648@@ -366,7 +382,7 @@ DST( movl %edx, 28(%edi) )
29649 shrl $2, %edx # This clears CF
29650 SRC(3: movl (%esi), %ebx )
29651 adcl %ebx, %eax
29652-DST( movl %ebx, (%edi) )
29653+DST( movl %ebx, %es:(%edi) )
29654 lea 4(%esi), %esi
29655 lea 4(%edi), %edi
29656 dec %edx
29657@@ -378,12 +394,12 @@ DST( movl %ebx, (%edi) )
29658 jb 5f
29659 SRC( movw (%esi), %cx )
29660 leal 2(%esi), %esi
29661-DST( movw %cx, (%edi) )
29662+DST( movw %cx, %es:(%edi) )
29663 leal 2(%edi), %edi
29664 je 6f
29665 shll $16,%ecx
29666 SRC(5: movb (%esi), %cl )
29667-DST( movb %cl, (%edi) )
29668+DST( movb %cl, %es:(%edi) )
29669 6: addl %ecx, %eax
29670 adcl $0, %eax
29671 7:
29672@@ -394,7 +410,7 @@ DST( movb %cl, (%edi) )
29673
29674 6001:
29675 movl ARGBASE+20(%esp), %ebx # src_err_ptr
29676- movl $-EFAULT, (%ebx)
29677+ movl $-EFAULT, %ss:(%ebx)
29678
29679 # zero the complete destination - computing the rest
29680 # is too much work
29681@@ -407,11 +423,15 @@ DST( movb %cl, (%edi) )
29682
29683 6002:
29684 movl ARGBASE+24(%esp), %ebx # dst_err_ptr
29685- movl $-EFAULT,(%ebx)
29686+ movl $-EFAULT,%ss:(%ebx)
29687 jmp 5000b
29688
29689 .previous
29690
29691+ pushl_cfi %ss
29692+ popl_cfi %ds
29693+ pushl_cfi %ss
29694+ popl_cfi %es
29695 popl_cfi %ebx
29696 CFI_RESTORE ebx
29697 popl_cfi %esi
29698@@ -421,26 +441,43 @@ DST( movb %cl, (%edi) )
29699 popl_cfi %ecx # equivalent to addl $4,%esp
29700 ret
29701 CFI_ENDPROC
29702-ENDPROC(csum_partial_copy_generic)
29703+ENDPROC(csum_partial_copy_generic_to_user)
29704
29705 #else
29706
29707 /* Version for PentiumII/PPro */
29708
29709 #define ROUND1(x) \
29710+ nop; nop; nop; \
29711 SRC(movl x(%esi), %ebx ) ; \
29712 addl %ebx, %eax ; \
29713- DST(movl %ebx, x(%edi) ) ;
29714+ DST(movl %ebx, %es:x(%edi)) ;
29715
29716 #define ROUND(x) \
29717+ nop; nop; nop; \
29718 SRC(movl x(%esi), %ebx ) ; \
29719 adcl %ebx, %eax ; \
29720- DST(movl %ebx, x(%edi) ) ;
29721+ DST(movl %ebx, %es:x(%edi)) ;
29722
29723 #define ARGBASE 12
29724-
29725-ENTRY(csum_partial_copy_generic)
29726+
29727+ENTRY(csum_partial_copy_generic_to_user)
29728 CFI_STARTPROC
29729+
29730+#ifdef CONFIG_PAX_MEMORY_UDEREF
29731+ pushl_cfi %gs
29732+ popl_cfi %es
29733+ jmp csum_partial_copy_generic
29734+#endif
29735+
29736+ENTRY(csum_partial_copy_generic_from_user)
29737+
29738+#ifdef CONFIG_PAX_MEMORY_UDEREF
29739+ pushl_cfi %gs
29740+ popl_cfi %ds
29741+#endif
29742+
29743+ENTRY(csum_partial_copy_generic)
29744 pushl_cfi %ebx
29745 CFI_REL_OFFSET ebx, 0
29746 pushl_cfi %edi
29747@@ -461,7 +498,7 @@ ENTRY(csum_partial_copy_generic)
29748 subl %ebx, %edi
29749 lea -1(%esi),%edx
29750 andl $-32,%edx
29751- lea 3f(%ebx,%ebx), %ebx
29752+ lea 3f(%ebx,%ebx,2), %ebx
29753 testl %esi, %esi
29754 jmp *%ebx
29755 1: addl $64,%esi
29756@@ -482,19 +519,19 @@ ENTRY(csum_partial_copy_generic)
29757 jb 5f
29758 SRC( movw (%esi), %dx )
29759 leal 2(%esi), %esi
29760-DST( movw %dx, (%edi) )
29761+DST( movw %dx, %es:(%edi) )
29762 leal 2(%edi), %edi
29763 je 6f
29764 shll $16,%edx
29765 5:
29766 SRC( movb (%esi), %dl )
29767-DST( movb %dl, (%edi) )
29768+DST( movb %dl, %es:(%edi) )
29769 6: addl %edx, %eax
29770 adcl $0, %eax
29771 7:
29772 .section .fixup, "ax"
29773 6001: movl ARGBASE+20(%esp), %ebx # src_err_ptr
29774- movl $-EFAULT, (%ebx)
29775+ movl $-EFAULT, %ss:(%ebx)
29776 # zero the complete destination (computing the rest is too much work)
29777 movl ARGBASE+8(%esp),%edi # dst
29778 movl ARGBASE+12(%esp),%ecx # len
29779@@ -502,10 +539,17 @@ DST( movb %dl, (%edi) )
29780 rep; stosb
29781 jmp 7b
29782 6002: movl ARGBASE+24(%esp), %ebx # dst_err_ptr
29783- movl $-EFAULT, (%ebx)
29784+ movl $-EFAULT, %ss:(%ebx)
29785 jmp 7b
29786 .previous
29787
29788+#ifdef CONFIG_PAX_MEMORY_UDEREF
29789+ pushl_cfi %ss
29790+ popl_cfi %ds
29791+ pushl_cfi %ss
29792+ popl_cfi %es
29793+#endif
29794+
29795 popl_cfi %esi
29796 CFI_RESTORE esi
29797 popl_cfi %edi
29798@@ -514,7 +558,7 @@ DST( movb %dl, (%edi) )
29799 CFI_RESTORE ebx
29800 ret
29801 CFI_ENDPROC
29802-ENDPROC(csum_partial_copy_generic)
29803+ENDPROC(csum_partial_copy_generic_to_user)
29804
29805 #undef ROUND
29806 #undef ROUND1
29807diff --git a/arch/x86/lib/clear_page_64.S b/arch/x86/lib/clear_page_64.S
29808index f2145cf..cea889d 100644
29809--- a/arch/x86/lib/clear_page_64.S
29810+++ b/arch/x86/lib/clear_page_64.S
29811@@ -11,6 +11,7 @@ ENTRY(clear_page_c)
29812 movl $4096/8,%ecx
29813 xorl %eax,%eax
29814 rep stosq
29815+ pax_force_retaddr
29816 ret
29817 CFI_ENDPROC
29818 ENDPROC(clear_page_c)
29819@@ -20,6 +21,7 @@ ENTRY(clear_page_c_e)
29820 movl $4096,%ecx
29821 xorl %eax,%eax
29822 rep stosb
29823+ pax_force_retaddr
29824 ret
29825 CFI_ENDPROC
29826 ENDPROC(clear_page_c_e)
29827@@ -43,6 +45,7 @@ ENTRY(clear_page)
29828 leaq 64(%rdi),%rdi
29829 jnz .Lloop
29830 nop
29831+ pax_force_retaddr
29832 ret
29833 CFI_ENDPROC
29834 .Lclear_page_end:
29835@@ -58,7 +61,7 @@ ENDPROC(clear_page)
29836
29837 #include <asm/cpufeature.h>
29838
29839- .section .altinstr_replacement,"ax"
29840+ .section .altinstr_replacement,"a"
29841 1: .byte 0xeb /* jmp <disp8> */
29842 .byte (clear_page_c - clear_page) - (2f - 1b) /* offset */
29843 2: .byte 0xeb /* jmp <disp8> */
29844diff --git a/arch/x86/lib/cmpxchg16b_emu.S b/arch/x86/lib/cmpxchg16b_emu.S
29845index 40a1725..5d12ac4 100644
29846--- a/arch/x86/lib/cmpxchg16b_emu.S
29847+++ b/arch/x86/lib/cmpxchg16b_emu.S
29848@@ -8,6 +8,7 @@
29849 #include <linux/linkage.h>
29850 #include <asm/dwarf2.h>
29851 #include <asm/percpu.h>
29852+#include <asm/alternative-asm.h>
29853
29854 .text
29855
29856@@ -46,12 +47,14 @@ CFI_STARTPROC
29857 CFI_REMEMBER_STATE
29858 popfq_cfi
29859 mov $1, %al
29860+ pax_force_retaddr
29861 ret
29862
29863 CFI_RESTORE_STATE
29864 .Lnot_same:
29865 popfq_cfi
29866 xor %al,%al
29867+ pax_force_retaddr
29868 ret
29869
29870 CFI_ENDPROC
29871diff --git a/arch/x86/lib/copy_page_64.S b/arch/x86/lib/copy_page_64.S
29872index 176cca6..e0d658e 100644
29873--- a/arch/x86/lib/copy_page_64.S
29874+++ b/arch/x86/lib/copy_page_64.S
29875@@ -9,6 +9,7 @@ copy_page_rep:
29876 CFI_STARTPROC
29877 movl $4096/8, %ecx
29878 rep movsq
29879+ pax_force_retaddr
29880 ret
29881 CFI_ENDPROC
29882 ENDPROC(copy_page_rep)
29883@@ -24,8 +25,8 @@ ENTRY(copy_page)
29884 CFI_ADJUST_CFA_OFFSET 2*8
29885 movq %rbx, (%rsp)
29886 CFI_REL_OFFSET rbx, 0
29887- movq %r12, 1*8(%rsp)
29888- CFI_REL_OFFSET r12, 1*8
29889+ movq %r13, 1*8(%rsp)
29890+ CFI_REL_OFFSET r13, 1*8
29891
29892 movl $(4096/64)-5, %ecx
29893 .p2align 4
29894@@ -38,7 +39,7 @@ ENTRY(copy_page)
29895 movq 0x8*4(%rsi), %r9
29896 movq 0x8*5(%rsi), %r10
29897 movq 0x8*6(%rsi), %r11
29898- movq 0x8*7(%rsi), %r12
29899+ movq 0x8*7(%rsi), %r13
29900
29901 prefetcht0 5*64(%rsi)
29902
29903@@ -49,7 +50,7 @@ ENTRY(copy_page)
29904 movq %r9, 0x8*4(%rdi)
29905 movq %r10, 0x8*5(%rdi)
29906 movq %r11, 0x8*6(%rdi)
29907- movq %r12, 0x8*7(%rdi)
29908+ movq %r13, 0x8*7(%rdi)
29909
29910 leaq 64 (%rsi), %rsi
29911 leaq 64 (%rdi), %rdi
29912@@ -68,7 +69,7 @@ ENTRY(copy_page)
29913 movq 0x8*4(%rsi), %r9
29914 movq 0x8*5(%rsi), %r10
29915 movq 0x8*6(%rsi), %r11
29916- movq 0x8*7(%rsi), %r12
29917+ movq 0x8*7(%rsi), %r13
29918
29919 movq %rax, 0x8*0(%rdi)
29920 movq %rbx, 0x8*1(%rdi)
29921@@ -77,7 +78,7 @@ ENTRY(copy_page)
29922 movq %r9, 0x8*4(%rdi)
29923 movq %r10, 0x8*5(%rdi)
29924 movq %r11, 0x8*6(%rdi)
29925- movq %r12, 0x8*7(%rdi)
29926+ movq %r13, 0x8*7(%rdi)
29927
29928 leaq 64(%rdi), %rdi
29929 leaq 64(%rsi), %rsi
29930@@ -85,10 +86,11 @@ ENTRY(copy_page)
29931
29932 movq (%rsp), %rbx
29933 CFI_RESTORE rbx
29934- movq 1*8(%rsp), %r12
29935- CFI_RESTORE r12
29936+ movq 1*8(%rsp), %r13
29937+ CFI_RESTORE r13
29938 addq $2*8, %rsp
29939 CFI_ADJUST_CFA_OFFSET -2*8
29940+ pax_force_retaddr
29941 ret
29942 .Lcopy_page_end:
29943 CFI_ENDPROC
29944@@ -99,7 +101,7 @@ ENDPROC(copy_page)
29945
29946 #include <asm/cpufeature.h>
29947
29948- .section .altinstr_replacement,"ax"
29949+ .section .altinstr_replacement,"a"
29950 1: .byte 0xeb /* jmp <disp8> */
29951 .byte (copy_page_rep - copy_page) - (2f - 1b) /* offset */
29952 2:
29953diff --git a/arch/x86/lib/copy_user_64.S b/arch/x86/lib/copy_user_64.S
29954index dee945d..a84067b 100644
29955--- a/arch/x86/lib/copy_user_64.S
29956+++ b/arch/x86/lib/copy_user_64.S
29957@@ -18,31 +18,7 @@
29958 #include <asm/alternative-asm.h>
29959 #include <asm/asm.h>
29960 #include <asm/smap.h>
29961-
29962-/*
29963- * By placing feature2 after feature1 in altinstructions section, we logically
29964- * implement:
29965- * If CPU has feature2, jmp to alt2 is used
29966- * else if CPU has feature1, jmp to alt1 is used
29967- * else jmp to orig is used.
29968- */
29969- .macro ALTERNATIVE_JUMP feature1,feature2,orig,alt1,alt2
29970-0:
29971- .byte 0xe9 /* 32bit jump */
29972- .long \orig-1f /* by default jump to orig */
29973-1:
29974- .section .altinstr_replacement,"ax"
29975-2: .byte 0xe9 /* near jump with 32bit immediate */
29976- .long \alt1-1b /* offset */ /* or alternatively to alt1 */
29977-3: .byte 0xe9 /* near jump with 32bit immediate */
29978- .long \alt2-1b /* offset */ /* or alternatively to alt2 */
29979- .previous
29980-
29981- .section .altinstructions,"a"
29982- altinstruction_entry 0b,2b,\feature1,5,5
29983- altinstruction_entry 0b,3b,\feature2,5,5
29984- .previous
29985- .endm
29986+#include <asm/pgtable.h>
29987
29988 .macro ALIGN_DESTINATION
29989 #ifdef FIX_ALIGNMENT
29990@@ -70,52 +46,6 @@
29991 #endif
29992 .endm
29993
29994-/* Standard copy_to_user with segment limit checking */
29995-ENTRY(_copy_to_user)
29996- CFI_STARTPROC
29997- GET_THREAD_INFO(%rax)
29998- movq %rdi,%rcx
29999- addq %rdx,%rcx
30000- jc bad_to_user
30001- cmpq TI_addr_limit(%rax),%rcx
30002- ja bad_to_user
30003- ALTERNATIVE_JUMP X86_FEATURE_REP_GOOD,X86_FEATURE_ERMS, \
30004- copy_user_generic_unrolled,copy_user_generic_string, \
30005- copy_user_enhanced_fast_string
30006- CFI_ENDPROC
30007-ENDPROC(_copy_to_user)
30008-
30009-/* Standard copy_from_user with segment limit checking */
30010-ENTRY(_copy_from_user)
30011- CFI_STARTPROC
30012- GET_THREAD_INFO(%rax)
30013- movq %rsi,%rcx
30014- addq %rdx,%rcx
30015- jc bad_from_user
30016- cmpq TI_addr_limit(%rax),%rcx
30017- ja bad_from_user
30018- ALTERNATIVE_JUMP X86_FEATURE_REP_GOOD,X86_FEATURE_ERMS, \
30019- copy_user_generic_unrolled,copy_user_generic_string, \
30020- copy_user_enhanced_fast_string
30021- CFI_ENDPROC
30022-ENDPROC(_copy_from_user)
30023-
30024- .section .fixup,"ax"
30025- /* must zero dest */
30026-ENTRY(bad_from_user)
30027-bad_from_user:
30028- CFI_STARTPROC
30029- movl %edx,%ecx
30030- xorl %eax,%eax
30031- rep
30032- stosb
30033-bad_to_user:
30034- movl %edx,%eax
30035- ret
30036- CFI_ENDPROC
30037-ENDPROC(bad_from_user)
30038- .previous
30039-
30040 /*
30041 * copy_user_generic_unrolled - memory copy with exception handling.
30042 * This version is for CPUs like P4 that don't have efficient micro
30043@@ -131,6 +61,7 @@ ENDPROC(bad_from_user)
30044 */
30045 ENTRY(copy_user_generic_unrolled)
30046 CFI_STARTPROC
30047+ ASM_PAX_OPEN_USERLAND
30048 ASM_STAC
30049 cmpl $8,%edx
30050 jb 20f /* less then 8 bytes, go to byte copy loop */
30051@@ -180,6 +111,8 @@ ENTRY(copy_user_generic_unrolled)
30052 jnz 21b
30053 23: xor %eax,%eax
30054 ASM_CLAC
30055+ ASM_PAX_CLOSE_USERLAND
30056+ pax_force_retaddr
30057 ret
30058
30059 .section .fixup,"ax"
30060@@ -235,6 +168,7 @@ ENDPROC(copy_user_generic_unrolled)
30061 */
30062 ENTRY(copy_user_generic_string)
30063 CFI_STARTPROC
30064+ ASM_PAX_OPEN_USERLAND
30065 ASM_STAC
30066 cmpl $8,%edx
30067 jb 2f /* less than 8 bytes, go to byte copy loop */
30068@@ -249,6 +183,8 @@ ENTRY(copy_user_generic_string)
30069 movsb
30070 xorl %eax,%eax
30071 ASM_CLAC
30072+ ASM_PAX_CLOSE_USERLAND
30073+ pax_force_retaddr
30074 ret
30075
30076 .section .fixup,"ax"
30077@@ -276,12 +212,15 @@ ENDPROC(copy_user_generic_string)
30078 */
30079 ENTRY(copy_user_enhanced_fast_string)
30080 CFI_STARTPROC
30081+ ASM_PAX_OPEN_USERLAND
30082 ASM_STAC
30083 movl %edx,%ecx
30084 1: rep
30085 movsb
30086 xorl %eax,%eax
30087 ASM_CLAC
30088+ ASM_PAX_CLOSE_USERLAND
30089+ pax_force_retaddr
30090 ret
30091
30092 .section .fixup,"ax"
30093diff --git a/arch/x86/lib/copy_user_nocache_64.S b/arch/x86/lib/copy_user_nocache_64.S
30094index 6a4f43c..c70fb52 100644
30095--- a/arch/x86/lib/copy_user_nocache_64.S
30096+++ b/arch/x86/lib/copy_user_nocache_64.S
30097@@ -8,6 +8,7 @@
30098
30099 #include <linux/linkage.h>
30100 #include <asm/dwarf2.h>
30101+#include <asm/alternative-asm.h>
30102
30103 #define FIX_ALIGNMENT 1
30104
30105@@ -16,6 +17,7 @@
30106 #include <asm/thread_info.h>
30107 #include <asm/asm.h>
30108 #include <asm/smap.h>
30109+#include <asm/pgtable.h>
30110
30111 .macro ALIGN_DESTINATION
30112 #ifdef FIX_ALIGNMENT
30113@@ -49,6 +51,16 @@
30114 */
30115 ENTRY(__copy_user_nocache)
30116 CFI_STARTPROC
30117+
30118+#ifdef CONFIG_PAX_MEMORY_UDEREF
30119+ mov pax_user_shadow_base,%rcx
30120+ cmp %rcx,%rsi
30121+ jae 1f
30122+ add %rcx,%rsi
30123+1:
30124+#endif
30125+
30126+ ASM_PAX_OPEN_USERLAND
30127 ASM_STAC
30128 cmpl $8,%edx
30129 jb 20f /* less then 8 bytes, go to byte copy loop */
30130@@ -98,7 +110,9 @@ ENTRY(__copy_user_nocache)
30131 jnz 21b
30132 23: xorl %eax,%eax
30133 ASM_CLAC
30134+ ASM_PAX_CLOSE_USERLAND
30135 sfence
30136+ pax_force_retaddr
30137 ret
30138
30139 .section .fixup,"ax"
30140diff --git a/arch/x86/lib/csum-copy_64.S b/arch/x86/lib/csum-copy_64.S
30141index 2419d5f..fe52d0e 100644
30142--- a/arch/x86/lib/csum-copy_64.S
30143+++ b/arch/x86/lib/csum-copy_64.S
30144@@ -9,6 +9,7 @@
30145 #include <asm/dwarf2.h>
30146 #include <asm/errno.h>
30147 #include <asm/asm.h>
30148+#include <asm/alternative-asm.h>
30149
30150 /*
30151 * Checksum copy with exception handling.
30152@@ -56,8 +57,8 @@ ENTRY(csum_partial_copy_generic)
30153 CFI_ADJUST_CFA_OFFSET 7*8
30154 movq %rbx, 2*8(%rsp)
30155 CFI_REL_OFFSET rbx, 2*8
30156- movq %r12, 3*8(%rsp)
30157- CFI_REL_OFFSET r12, 3*8
30158+ movq %r15, 3*8(%rsp)
30159+ CFI_REL_OFFSET r15, 3*8
30160 movq %r14, 4*8(%rsp)
30161 CFI_REL_OFFSET r14, 4*8
30162 movq %r13, 5*8(%rsp)
30163@@ -72,16 +73,16 @@ ENTRY(csum_partial_copy_generic)
30164 movl %edx, %ecx
30165
30166 xorl %r9d, %r9d
30167- movq %rcx, %r12
30168+ movq %rcx, %r15
30169
30170- shrq $6, %r12
30171+ shrq $6, %r15
30172 jz .Lhandle_tail /* < 64 */
30173
30174 clc
30175
30176 /* main loop. clear in 64 byte blocks */
30177 /* r9: zero, r8: temp2, rbx: temp1, rax: sum, rcx: saved length */
30178- /* r11: temp3, rdx: temp4, r12 loopcnt */
30179+ /* r11: temp3, rdx: temp4, r15 loopcnt */
30180 /* r10: temp5, rbp: temp6, r14 temp7, r13 temp8 */
30181 .p2align 4
30182 .Lloop:
30183@@ -115,7 +116,7 @@ ENTRY(csum_partial_copy_generic)
30184 adcq %r14, %rax
30185 adcq %r13, %rax
30186
30187- decl %r12d
30188+ decl %r15d
30189
30190 dest
30191 movq %rbx, (%rsi)
30192@@ -210,8 +211,8 @@ ENTRY(csum_partial_copy_generic)
30193 .Lende:
30194 movq 2*8(%rsp), %rbx
30195 CFI_RESTORE rbx
30196- movq 3*8(%rsp), %r12
30197- CFI_RESTORE r12
30198+ movq 3*8(%rsp), %r15
30199+ CFI_RESTORE r15
30200 movq 4*8(%rsp), %r14
30201 CFI_RESTORE r14
30202 movq 5*8(%rsp), %r13
30203@@ -220,6 +221,7 @@ ENTRY(csum_partial_copy_generic)
30204 CFI_RESTORE rbp
30205 addq $7*8, %rsp
30206 CFI_ADJUST_CFA_OFFSET -7*8
30207+ pax_force_retaddr
30208 ret
30209 CFI_RESTORE_STATE
30210
30211diff --git a/arch/x86/lib/csum-wrappers_64.c b/arch/x86/lib/csum-wrappers_64.c
30212index 1318f75..44c30fd 100644
30213--- a/arch/x86/lib/csum-wrappers_64.c
30214+++ b/arch/x86/lib/csum-wrappers_64.c
30215@@ -52,10 +52,12 @@ csum_partial_copy_from_user(const void __user *src, void *dst,
30216 len -= 2;
30217 }
30218 }
30219+ pax_open_userland();
30220 stac();
30221- isum = csum_partial_copy_generic((__force const void *)src,
30222+ isum = csum_partial_copy_generic((const void __force_kernel *)____m(src),
30223 dst, len, isum, errp, NULL);
30224 clac();
30225+ pax_close_userland();
30226 if (unlikely(*errp))
30227 goto out_err;
30228
30229@@ -109,10 +111,12 @@ csum_partial_copy_to_user(const void *src, void __user *dst,
30230 }
30231
30232 *errp = 0;
30233+ pax_open_userland();
30234 stac();
30235- ret = csum_partial_copy_generic(src, (void __force *)dst,
30236+ ret = csum_partial_copy_generic(src, (void __force_kernel *)____m(dst),
30237 len, isum, NULL, errp);
30238 clac();
30239+ pax_close_userland();
30240 return ret;
30241 }
30242 EXPORT_SYMBOL(csum_partial_copy_to_user);
30243diff --git a/arch/x86/lib/getuser.S b/arch/x86/lib/getuser.S
30244index a451235..a74bfa3 100644
30245--- a/arch/x86/lib/getuser.S
30246+++ b/arch/x86/lib/getuser.S
30247@@ -33,17 +33,40 @@
30248 #include <asm/thread_info.h>
30249 #include <asm/asm.h>
30250 #include <asm/smap.h>
30251+#include <asm/segment.h>
30252+#include <asm/pgtable.h>
30253+#include <asm/alternative-asm.h>
30254+
30255+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_MEMORY_UDEREF)
30256+#define __copyuser_seg gs;
30257+#else
30258+#define __copyuser_seg
30259+#endif
30260
30261 .text
30262 ENTRY(__get_user_1)
30263 CFI_STARTPROC
30264+
30265+#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF)
30266 GET_THREAD_INFO(%_ASM_DX)
30267 cmp TI_addr_limit(%_ASM_DX),%_ASM_AX
30268 jae bad_get_user
30269+
30270+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
30271+ mov pax_user_shadow_base,%_ASM_DX
30272+ cmp %_ASM_DX,%_ASM_AX
30273+ jae 1234f
30274+ add %_ASM_DX,%_ASM_AX
30275+1234:
30276+#endif
30277+
30278+#endif
30279+
30280 ASM_STAC
30281-1: movzbl (%_ASM_AX),%edx
30282+1: __copyuser_seg movzbl (%_ASM_AX),%edx
30283 xor %eax,%eax
30284 ASM_CLAC
30285+ pax_force_retaddr
30286 ret
30287 CFI_ENDPROC
30288 ENDPROC(__get_user_1)
30289@@ -51,14 +74,28 @@ ENDPROC(__get_user_1)
30290 ENTRY(__get_user_2)
30291 CFI_STARTPROC
30292 add $1,%_ASM_AX
30293+
30294+#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF)
30295 jc bad_get_user
30296 GET_THREAD_INFO(%_ASM_DX)
30297 cmp TI_addr_limit(%_ASM_DX),%_ASM_AX
30298 jae bad_get_user
30299+
30300+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
30301+ mov pax_user_shadow_base,%_ASM_DX
30302+ cmp %_ASM_DX,%_ASM_AX
30303+ jae 1234f
30304+ add %_ASM_DX,%_ASM_AX
30305+1234:
30306+#endif
30307+
30308+#endif
30309+
30310 ASM_STAC
30311-2: movzwl -1(%_ASM_AX),%edx
30312+2: __copyuser_seg movzwl -1(%_ASM_AX),%edx
30313 xor %eax,%eax
30314 ASM_CLAC
30315+ pax_force_retaddr
30316 ret
30317 CFI_ENDPROC
30318 ENDPROC(__get_user_2)
30319@@ -66,14 +103,28 @@ ENDPROC(__get_user_2)
30320 ENTRY(__get_user_4)
30321 CFI_STARTPROC
30322 add $3,%_ASM_AX
30323+
30324+#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF)
30325 jc bad_get_user
30326 GET_THREAD_INFO(%_ASM_DX)
30327 cmp TI_addr_limit(%_ASM_DX),%_ASM_AX
30328 jae bad_get_user
30329+
30330+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
30331+ mov pax_user_shadow_base,%_ASM_DX
30332+ cmp %_ASM_DX,%_ASM_AX
30333+ jae 1234f
30334+ add %_ASM_DX,%_ASM_AX
30335+1234:
30336+#endif
30337+
30338+#endif
30339+
30340 ASM_STAC
30341-3: movl -3(%_ASM_AX),%edx
30342+3: __copyuser_seg movl -3(%_ASM_AX),%edx
30343 xor %eax,%eax
30344 ASM_CLAC
30345+ pax_force_retaddr
30346 ret
30347 CFI_ENDPROC
30348 ENDPROC(__get_user_4)
30349@@ -86,10 +137,20 @@ ENTRY(__get_user_8)
30350 GET_THREAD_INFO(%_ASM_DX)
30351 cmp TI_addr_limit(%_ASM_DX),%_ASM_AX
30352 jae bad_get_user
30353+
30354+#ifdef CONFIG_PAX_MEMORY_UDEREF
30355+ mov pax_user_shadow_base,%_ASM_DX
30356+ cmp %_ASM_DX,%_ASM_AX
30357+ jae 1234f
30358+ add %_ASM_DX,%_ASM_AX
30359+1234:
30360+#endif
30361+
30362 ASM_STAC
30363 4: movq -7(%_ASM_AX),%rdx
30364 xor %eax,%eax
30365 ASM_CLAC
30366+ pax_force_retaddr
30367 ret
30368 #else
30369 add $7,%_ASM_AX
30370@@ -98,10 +159,11 @@ ENTRY(__get_user_8)
30371 cmp TI_addr_limit(%_ASM_DX),%_ASM_AX
30372 jae bad_get_user_8
30373 ASM_STAC
30374-4: movl -7(%_ASM_AX),%edx
30375-5: movl -3(%_ASM_AX),%ecx
30376+4: __copyuser_seg movl -7(%_ASM_AX),%edx
30377+5: __copyuser_seg movl -3(%_ASM_AX),%ecx
30378 xor %eax,%eax
30379 ASM_CLAC
30380+ pax_force_retaddr
30381 ret
30382 #endif
30383 CFI_ENDPROC
30384@@ -113,6 +175,7 @@ bad_get_user:
30385 xor %edx,%edx
30386 mov $(-EFAULT),%_ASM_AX
30387 ASM_CLAC
30388+ pax_force_retaddr
30389 ret
30390 CFI_ENDPROC
30391 END(bad_get_user)
30392@@ -124,6 +187,7 @@ bad_get_user_8:
30393 xor %ecx,%ecx
30394 mov $(-EFAULT),%_ASM_AX
30395 ASM_CLAC
30396+ pax_force_retaddr
30397 ret
30398 CFI_ENDPROC
30399 END(bad_get_user_8)
30400diff --git a/arch/x86/lib/insn.c b/arch/x86/lib/insn.c
30401index 85994f5..9929d7f 100644
30402--- a/arch/x86/lib/insn.c
30403+++ b/arch/x86/lib/insn.c
30404@@ -20,8 +20,10 @@
30405
30406 #ifdef __KERNEL__
30407 #include <linux/string.h>
30408+#include <asm/pgtable_types.h>
30409 #else
30410 #include <string.h>
30411+#define ktla_ktva(addr) addr
30412 #endif
30413 #include <asm/inat.h>
30414 #include <asm/insn.h>
30415@@ -60,9 +62,9 @@ void insn_init(struct insn *insn, const void *kaddr, int buf_len, int x86_64)
30416 buf_len = MAX_INSN_SIZE;
30417
30418 memset(insn, 0, sizeof(*insn));
30419- insn->kaddr = kaddr;
30420- insn->end_kaddr = kaddr + buf_len;
30421- insn->next_byte = kaddr;
30422+ insn->kaddr = ktla_ktva(kaddr);
30423+ insn->end_kaddr = insn->kaddr + buf_len;
30424+ insn->next_byte = insn->kaddr;
30425 insn->x86_64 = x86_64 ? 1 : 0;
30426 insn->opnd_bytes = 4;
30427 if (x86_64)
30428diff --git a/arch/x86/lib/iomap_copy_64.S b/arch/x86/lib/iomap_copy_64.S
30429index 05a95e7..326f2fa 100644
30430--- a/arch/x86/lib/iomap_copy_64.S
30431+++ b/arch/x86/lib/iomap_copy_64.S
30432@@ -17,6 +17,7 @@
30433
30434 #include <linux/linkage.h>
30435 #include <asm/dwarf2.h>
30436+#include <asm/alternative-asm.h>
30437
30438 /*
30439 * override generic version in lib/iomap_copy.c
30440@@ -25,6 +26,7 @@ ENTRY(__iowrite32_copy)
30441 CFI_STARTPROC
30442 movl %edx,%ecx
30443 rep movsd
30444+ pax_force_retaddr
30445 ret
30446 CFI_ENDPROC
30447 ENDPROC(__iowrite32_copy)
30448diff --git a/arch/x86/lib/memcpy_64.S b/arch/x86/lib/memcpy_64.S
30449index 89b53c9..97357ca 100644
30450--- a/arch/x86/lib/memcpy_64.S
30451+++ b/arch/x86/lib/memcpy_64.S
30452@@ -24,7 +24,7 @@
30453 * This gets patched over the unrolled variant (below) via the
30454 * alternative instructions framework:
30455 */
30456- .section .altinstr_replacement, "ax", @progbits
30457+ .section .altinstr_replacement, "a", @progbits
30458 .Lmemcpy_c:
30459 movq %rdi, %rax
30460 movq %rdx, %rcx
30461@@ -33,6 +33,7 @@
30462 rep movsq
30463 movl %edx, %ecx
30464 rep movsb
30465+ pax_force_retaddr
30466 ret
30467 .Lmemcpy_e:
30468 .previous
30469@@ -44,11 +45,12 @@
30470 * This gets patched over the unrolled variant (below) via the
30471 * alternative instructions framework:
30472 */
30473- .section .altinstr_replacement, "ax", @progbits
30474+ .section .altinstr_replacement, "a", @progbits
30475 .Lmemcpy_c_e:
30476 movq %rdi, %rax
30477 movq %rdx, %rcx
30478 rep movsb
30479+ pax_force_retaddr
30480 ret
30481 .Lmemcpy_e_e:
30482 .previous
30483@@ -138,6 +140,7 @@ ENTRY(memcpy)
30484 movq %r9, 1*8(%rdi)
30485 movq %r10, -2*8(%rdi, %rdx)
30486 movq %r11, -1*8(%rdi, %rdx)
30487+ pax_force_retaddr
30488 retq
30489 .p2align 4
30490 .Lless_16bytes:
30491@@ -150,6 +153,7 @@ ENTRY(memcpy)
30492 movq -1*8(%rsi, %rdx), %r9
30493 movq %r8, 0*8(%rdi)
30494 movq %r9, -1*8(%rdi, %rdx)
30495+ pax_force_retaddr
30496 retq
30497 .p2align 4
30498 .Lless_8bytes:
30499@@ -163,6 +167,7 @@ ENTRY(memcpy)
30500 movl -4(%rsi, %rdx), %r8d
30501 movl %ecx, (%rdi)
30502 movl %r8d, -4(%rdi, %rdx)
30503+ pax_force_retaddr
30504 retq
30505 .p2align 4
30506 .Lless_3bytes:
30507@@ -181,6 +186,7 @@ ENTRY(memcpy)
30508 movb %cl, (%rdi)
30509
30510 .Lend:
30511+ pax_force_retaddr
30512 retq
30513 CFI_ENDPROC
30514 ENDPROC(memcpy)
30515diff --git a/arch/x86/lib/memmove_64.S b/arch/x86/lib/memmove_64.S
30516index 9c4b530..830b77a 100644
30517--- a/arch/x86/lib/memmove_64.S
30518+++ b/arch/x86/lib/memmove_64.S
30519@@ -205,14 +205,16 @@ ENTRY(__memmove)
30520 movb (%rsi), %r11b
30521 movb %r11b, (%rdi)
30522 13:
30523+ pax_force_retaddr
30524 retq
30525 CFI_ENDPROC
30526
30527- .section .altinstr_replacement,"ax"
30528+ .section .altinstr_replacement,"a"
30529 .Lmemmove_begin_forward_efs:
30530 /* Forward moving data. */
30531 movq %rdx, %rcx
30532 rep movsb
30533+ pax_force_retaddr
30534 retq
30535 .Lmemmove_end_forward_efs:
30536 .previous
30537diff --git a/arch/x86/lib/memset_64.S b/arch/x86/lib/memset_64.S
30538index 6f44935..fbf5f6d 100644
30539--- a/arch/x86/lib/memset_64.S
30540+++ b/arch/x86/lib/memset_64.S
30541@@ -16,7 +16,7 @@
30542 *
30543 * rax original destination
30544 */
30545- .section .altinstr_replacement, "ax", @progbits
30546+ .section .altinstr_replacement, "a", @progbits
30547 .Lmemset_c:
30548 movq %rdi,%r9
30549 movq %rdx,%rcx
30550@@ -30,6 +30,7 @@
30551 movl %edx,%ecx
30552 rep stosb
30553 movq %r9,%rax
30554+ pax_force_retaddr
30555 ret
30556 .Lmemset_e:
30557 .previous
30558@@ -45,13 +46,14 @@
30559 *
30560 * rax original destination
30561 */
30562- .section .altinstr_replacement, "ax", @progbits
30563+ .section .altinstr_replacement, "a", @progbits
30564 .Lmemset_c_e:
30565 movq %rdi,%r9
30566 movb %sil,%al
30567 movq %rdx,%rcx
30568 rep stosb
30569 movq %r9,%rax
30570+ pax_force_retaddr
30571 ret
30572 .Lmemset_e_e:
30573 .previous
30574@@ -120,6 +122,7 @@ ENTRY(__memset)
30575
30576 .Lende:
30577 movq %r10,%rax
30578+ pax_force_retaddr
30579 ret
30580
30581 CFI_RESTORE_STATE
30582diff --git a/arch/x86/lib/mmx_32.c b/arch/x86/lib/mmx_32.c
30583index c9f2d9b..e7fd2c0 100644
30584--- a/arch/x86/lib/mmx_32.c
30585+++ b/arch/x86/lib/mmx_32.c
30586@@ -29,6 +29,7 @@ void *_mmx_memcpy(void *to, const void *from, size_t len)
30587 {
30588 void *p;
30589 int i;
30590+ unsigned long cr0;
30591
30592 if (unlikely(in_interrupt()))
30593 return __memcpy(to, from, len);
30594@@ -39,44 +40,72 @@ void *_mmx_memcpy(void *to, const void *from, size_t len)
30595 kernel_fpu_begin();
30596
30597 __asm__ __volatile__ (
30598- "1: prefetch (%0)\n" /* This set is 28 bytes */
30599- " prefetch 64(%0)\n"
30600- " prefetch 128(%0)\n"
30601- " prefetch 192(%0)\n"
30602- " prefetch 256(%0)\n"
30603+ "1: prefetch (%1)\n" /* This set is 28 bytes */
30604+ " prefetch 64(%1)\n"
30605+ " prefetch 128(%1)\n"
30606+ " prefetch 192(%1)\n"
30607+ " prefetch 256(%1)\n"
30608 "2: \n"
30609 ".section .fixup, \"ax\"\n"
30610- "3: movw $0x1AEB, 1b\n" /* jmp on 26 bytes */
30611+ "3: \n"
30612+
30613+#ifdef CONFIG_PAX_KERNEXEC
30614+ " movl %%cr0, %0\n"
30615+ " movl %0, %%eax\n"
30616+ " andl $0xFFFEFFFF, %%eax\n"
30617+ " movl %%eax, %%cr0\n"
30618+#endif
30619+
30620+ " movw $0x1AEB, 1b\n" /* jmp on 26 bytes */
30621+
30622+#ifdef CONFIG_PAX_KERNEXEC
30623+ " movl %0, %%cr0\n"
30624+#endif
30625+
30626 " jmp 2b\n"
30627 ".previous\n"
30628 _ASM_EXTABLE(1b, 3b)
30629- : : "r" (from));
30630+ : "=&r" (cr0) : "r" (from) : "ax");
30631
30632 for ( ; i > 5; i--) {
30633 __asm__ __volatile__ (
30634- "1: prefetch 320(%0)\n"
30635- "2: movq (%0), %%mm0\n"
30636- " movq 8(%0), %%mm1\n"
30637- " movq 16(%0), %%mm2\n"
30638- " movq 24(%0), %%mm3\n"
30639- " movq %%mm0, (%1)\n"
30640- " movq %%mm1, 8(%1)\n"
30641- " movq %%mm2, 16(%1)\n"
30642- " movq %%mm3, 24(%1)\n"
30643- " movq 32(%0), %%mm0\n"
30644- " movq 40(%0), %%mm1\n"
30645- " movq 48(%0), %%mm2\n"
30646- " movq 56(%0), %%mm3\n"
30647- " movq %%mm0, 32(%1)\n"
30648- " movq %%mm1, 40(%1)\n"
30649- " movq %%mm2, 48(%1)\n"
30650- " movq %%mm3, 56(%1)\n"
30651+ "1: prefetch 320(%1)\n"
30652+ "2: movq (%1), %%mm0\n"
30653+ " movq 8(%1), %%mm1\n"
30654+ " movq 16(%1), %%mm2\n"
30655+ " movq 24(%1), %%mm3\n"
30656+ " movq %%mm0, (%2)\n"
30657+ " movq %%mm1, 8(%2)\n"
30658+ " movq %%mm2, 16(%2)\n"
30659+ " movq %%mm3, 24(%2)\n"
30660+ " movq 32(%1), %%mm0\n"
30661+ " movq 40(%1), %%mm1\n"
30662+ " movq 48(%1), %%mm2\n"
30663+ " movq 56(%1), %%mm3\n"
30664+ " movq %%mm0, 32(%2)\n"
30665+ " movq %%mm1, 40(%2)\n"
30666+ " movq %%mm2, 48(%2)\n"
30667+ " movq %%mm3, 56(%2)\n"
30668 ".section .fixup, \"ax\"\n"
30669- "3: movw $0x05EB, 1b\n" /* jmp on 5 bytes */
30670+ "3:\n"
30671+
30672+#ifdef CONFIG_PAX_KERNEXEC
30673+ " movl %%cr0, %0\n"
30674+ " movl %0, %%eax\n"
30675+ " andl $0xFFFEFFFF, %%eax\n"
30676+ " movl %%eax, %%cr0\n"
30677+#endif
30678+
30679+ " movw $0x05EB, 1b\n" /* jmp on 5 bytes */
30680+
30681+#ifdef CONFIG_PAX_KERNEXEC
30682+ " movl %0, %%cr0\n"
30683+#endif
30684+
30685 " jmp 2b\n"
30686 ".previous\n"
30687 _ASM_EXTABLE(1b, 3b)
30688- : : "r" (from), "r" (to) : "memory");
30689+ : "=&r" (cr0) : "r" (from), "r" (to) : "memory", "ax");
30690
30691 from += 64;
30692 to += 64;
30693@@ -158,6 +187,7 @@ static void fast_clear_page(void *page)
30694 static void fast_copy_page(void *to, void *from)
30695 {
30696 int i;
30697+ unsigned long cr0;
30698
30699 kernel_fpu_begin();
30700
30701@@ -166,42 +196,70 @@ static void fast_copy_page(void *to, void *from)
30702 * but that is for later. -AV
30703 */
30704 __asm__ __volatile__(
30705- "1: prefetch (%0)\n"
30706- " prefetch 64(%0)\n"
30707- " prefetch 128(%0)\n"
30708- " prefetch 192(%0)\n"
30709- " prefetch 256(%0)\n"
30710+ "1: prefetch (%1)\n"
30711+ " prefetch 64(%1)\n"
30712+ " prefetch 128(%1)\n"
30713+ " prefetch 192(%1)\n"
30714+ " prefetch 256(%1)\n"
30715 "2: \n"
30716 ".section .fixup, \"ax\"\n"
30717- "3: movw $0x1AEB, 1b\n" /* jmp on 26 bytes */
30718+ "3: \n"
30719+
30720+#ifdef CONFIG_PAX_KERNEXEC
30721+ " movl %%cr0, %0\n"
30722+ " movl %0, %%eax\n"
30723+ " andl $0xFFFEFFFF, %%eax\n"
30724+ " movl %%eax, %%cr0\n"
30725+#endif
30726+
30727+ " movw $0x1AEB, 1b\n" /* jmp on 26 bytes */
30728+
30729+#ifdef CONFIG_PAX_KERNEXEC
30730+ " movl %0, %%cr0\n"
30731+#endif
30732+
30733 " jmp 2b\n"
30734 ".previous\n"
30735- _ASM_EXTABLE(1b, 3b) : : "r" (from));
30736+ _ASM_EXTABLE(1b, 3b) : "=&r" (cr0) : "r" (from) : "ax");
30737
30738 for (i = 0; i < (4096-320)/64; i++) {
30739 __asm__ __volatile__ (
30740- "1: prefetch 320(%0)\n"
30741- "2: movq (%0), %%mm0\n"
30742- " movntq %%mm0, (%1)\n"
30743- " movq 8(%0), %%mm1\n"
30744- " movntq %%mm1, 8(%1)\n"
30745- " movq 16(%0), %%mm2\n"
30746- " movntq %%mm2, 16(%1)\n"
30747- " movq 24(%0), %%mm3\n"
30748- " movntq %%mm3, 24(%1)\n"
30749- " movq 32(%0), %%mm4\n"
30750- " movntq %%mm4, 32(%1)\n"
30751- " movq 40(%0), %%mm5\n"
30752- " movntq %%mm5, 40(%1)\n"
30753- " movq 48(%0), %%mm6\n"
30754- " movntq %%mm6, 48(%1)\n"
30755- " movq 56(%0), %%mm7\n"
30756- " movntq %%mm7, 56(%1)\n"
30757+ "1: prefetch 320(%1)\n"
30758+ "2: movq (%1), %%mm0\n"
30759+ " movntq %%mm0, (%2)\n"
30760+ " movq 8(%1), %%mm1\n"
30761+ " movntq %%mm1, 8(%2)\n"
30762+ " movq 16(%1), %%mm2\n"
30763+ " movntq %%mm2, 16(%2)\n"
30764+ " movq 24(%1), %%mm3\n"
30765+ " movntq %%mm3, 24(%2)\n"
30766+ " movq 32(%1), %%mm4\n"
30767+ " movntq %%mm4, 32(%2)\n"
30768+ " movq 40(%1), %%mm5\n"
30769+ " movntq %%mm5, 40(%2)\n"
30770+ " movq 48(%1), %%mm6\n"
30771+ " movntq %%mm6, 48(%2)\n"
30772+ " movq 56(%1), %%mm7\n"
30773+ " movntq %%mm7, 56(%2)\n"
30774 ".section .fixup, \"ax\"\n"
30775- "3: movw $0x05EB, 1b\n" /* jmp on 5 bytes */
30776+ "3:\n"
30777+
30778+#ifdef CONFIG_PAX_KERNEXEC
30779+ " movl %%cr0, %0\n"
30780+ " movl %0, %%eax\n"
30781+ " andl $0xFFFEFFFF, %%eax\n"
30782+ " movl %%eax, %%cr0\n"
30783+#endif
30784+
30785+ " movw $0x05EB, 1b\n" /* jmp on 5 bytes */
30786+
30787+#ifdef CONFIG_PAX_KERNEXEC
30788+ " movl %0, %%cr0\n"
30789+#endif
30790+
30791 " jmp 2b\n"
30792 ".previous\n"
30793- _ASM_EXTABLE(1b, 3b) : : "r" (from), "r" (to) : "memory");
30794+ _ASM_EXTABLE(1b, 3b) : "=&r" (cr0) : "r" (from), "r" (to) : "memory", "ax");
30795
30796 from += 64;
30797 to += 64;
30798@@ -280,47 +338,76 @@ static void fast_clear_page(void *page)
30799 static void fast_copy_page(void *to, void *from)
30800 {
30801 int i;
30802+ unsigned long cr0;
30803
30804 kernel_fpu_begin();
30805
30806 __asm__ __volatile__ (
30807- "1: prefetch (%0)\n"
30808- " prefetch 64(%0)\n"
30809- " prefetch 128(%0)\n"
30810- " prefetch 192(%0)\n"
30811- " prefetch 256(%0)\n"
30812+ "1: prefetch (%1)\n"
30813+ " prefetch 64(%1)\n"
30814+ " prefetch 128(%1)\n"
30815+ " prefetch 192(%1)\n"
30816+ " prefetch 256(%1)\n"
30817 "2: \n"
30818 ".section .fixup, \"ax\"\n"
30819- "3: movw $0x1AEB, 1b\n" /* jmp on 26 bytes */
30820+ "3: \n"
30821+
30822+#ifdef CONFIG_PAX_KERNEXEC
30823+ " movl %%cr0, %0\n"
30824+ " movl %0, %%eax\n"
30825+ " andl $0xFFFEFFFF, %%eax\n"
30826+ " movl %%eax, %%cr0\n"
30827+#endif
30828+
30829+ " movw $0x1AEB, 1b\n" /* jmp on 26 bytes */
30830+
30831+#ifdef CONFIG_PAX_KERNEXEC
30832+ " movl %0, %%cr0\n"
30833+#endif
30834+
30835 " jmp 2b\n"
30836 ".previous\n"
30837- _ASM_EXTABLE(1b, 3b) : : "r" (from));
30838+ _ASM_EXTABLE(1b, 3b) : "=&r" (cr0) : "r" (from) : "ax");
30839
30840 for (i = 0; i < 4096/64; i++) {
30841 __asm__ __volatile__ (
30842- "1: prefetch 320(%0)\n"
30843- "2: movq (%0), %%mm0\n"
30844- " movq 8(%0), %%mm1\n"
30845- " movq 16(%0), %%mm2\n"
30846- " movq 24(%0), %%mm3\n"
30847- " movq %%mm0, (%1)\n"
30848- " movq %%mm1, 8(%1)\n"
30849- " movq %%mm2, 16(%1)\n"
30850- " movq %%mm3, 24(%1)\n"
30851- " movq 32(%0), %%mm0\n"
30852- " movq 40(%0), %%mm1\n"
30853- " movq 48(%0), %%mm2\n"
30854- " movq 56(%0), %%mm3\n"
30855- " movq %%mm0, 32(%1)\n"
30856- " movq %%mm1, 40(%1)\n"
30857- " movq %%mm2, 48(%1)\n"
30858- " movq %%mm3, 56(%1)\n"
30859+ "1: prefetch 320(%1)\n"
30860+ "2: movq (%1), %%mm0\n"
30861+ " movq 8(%1), %%mm1\n"
30862+ " movq 16(%1), %%mm2\n"
30863+ " movq 24(%1), %%mm3\n"
30864+ " movq %%mm0, (%2)\n"
30865+ " movq %%mm1, 8(%2)\n"
30866+ " movq %%mm2, 16(%2)\n"
30867+ " movq %%mm3, 24(%2)\n"
30868+ " movq 32(%1), %%mm0\n"
30869+ " movq 40(%1), %%mm1\n"
30870+ " movq 48(%1), %%mm2\n"
30871+ " movq 56(%1), %%mm3\n"
30872+ " movq %%mm0, 32(%2)\n"
30873+ " movq %%mm1, 40(%2)\n"
30874+ " movq %%mm2, 48(%2)\n"
30875+ " movq %%mm3, 56(%2)\n"
30876 ".section .fixup, \"ax\"\n"
30877- "3: movw $0x05EB, 1b\n" /* jmp on 5 bytes */
30878+ "3:\n"
30879+
30880+#ifdef CONFIG_PAX_KERNEXEC
30881+ " movl %%cr0, %0\n"
30882+ " movl %0, %%eax\n"
30883+ " andl $0xFFFEFFFF, %%eax\n"
30884+ " movl %%eax, %%cr0\n"
30885+#endif
30886+
30887+ " movw $0x05EB, 1b\n" /* jmp on 5 bytes */
30888+
30889+#ifdef CONFIG_PAX_KERNEXEC
30890+ " movl %0, %%cr0\n"
30891+#endif
30892+
30893 " jmp 2b\n"
30894 ".previous\n"
30895 _ASM_EXTABLE(1b, 3b)
30896- : : "r" (from), "r" (to) : "memory");
30897+ : "=&r" (cr0) : "r" (from), "r" (to) : "memory", "ax");
30898
30899 from += 64;
30900 to += 64;
30901diff --git a/arch/x86/lib/msr-reg.S b/arch/x86/lib/msr-reg.S
30902index f6d13ee..d789440 100644
30903--- a/arch/x86/lib/msr-reg.S
30904+++ b/arch/x86/lib/msr-reg.S
30905@@ -3,6 +3,7 @@
30906 #include <asm/dwarf2.h>
30907 #include <asm/asm.h>
30908 #include <asm/msr.h>
30909+#include <asm/alternative-asm.h>
30910
30911 #ifdef CONFIG_X86_64
30912 /*
30913@@ -37,6 +38,7 @@ ENTRY(\op\()_safe_regs)
30914 movl %edi, 28(%r10)
30915 popq_cfi %rbp
30916 popq_cfi %rbx
30917+ pax_force_retaddr
30918 ret
30919 3:
30920 CFI_RESTORE_STATE
30921diff --git a/arch/x86/lib/putuser.S b/arch/x86/lib/putuser.S
30922index fc6ba17..14ad9a5 100644
30923--- a/arch/x86/lib/putuser.S
30924+++ b/arch/x86/lib/putuser.S
30925@@ -16,7 +16,9 @@
30926 #include <asm/errno.h>
30927 #include <asm/asm.h>
30928 #include <asm/smap.h>
30929-
30930+#include <asm/segment.h>
30931+#include <asm/pgtable.h>
30932+#include <asm/alternative-asm.h>
30933
30934 /*
30935 * __put_user_X
30936@@ -30,57 +32,125 @@
30937 * as they get called from within inline assembly.
30938 */
30939
30940-#define ENTER CFI_STARTPROC ; \
30941- GET_THREAD_INFO(%_ASM_BX)
30942-#define EXIT ASM_CLAC ; \
30943- ret ; \
30944+#define ENTER CFI_STARTPROC
30945+#define EXIT ASM_CLAC ; \
30946+ pax_force_retaddr ; \
30947+ ret ; \
30948 CFI_ENDPROC
30949
30950+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
30951+#define _DEST %_ASM_CX,%_ASM_BX
30952+#else
30953+#define _DEST %_ASM_CX
30954+#endif
30955+
30956+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_MEMORY_UDEREF)
30957+#define __copyuser_seg gs;
30958+#else
30959+#define __copyuser_seg
30960+#endif
30961+
30962 .text
30963 ENTRY(__put_user_1)
30964 ENTER
30965+
30966+#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF)
30967+ GET_THREAD_INFO(%_ASM_BX)
30968 cmp TI_addr_limit(%_ASM_BX),%_ASM_CX
30969 jae bad_put_user
30970+
30971+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
30972+ mov pax_user_shadow_base,%_ASM_BX
30973+ cmp %_ASM_BX,%_ASM_CX
30974+ jb 1234f
30975+ xor %ebx,%ebx
30976+1234:
30977+#endif
30978+
30979+#endif
30980+
30981 ASM_STAC
30982-1: movb %al,(%_ASM_CX)
30983+1: __copyuser_seg movb %al,(_DEST)
30984 xor %eax,%eax
30985 EXIT
30986 ENDPROC(__put_user_1)
30987
30988 ENTRY(__put_user_2)
30989 ENTER
30990+
30991+#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF)
30992+ GET_THREAD_INFO(%_ASM_BX)
30993 mov TI_addr_limit(%_ASM_BX),%_ASM_BX
30994 sub $1,%_ASM_BX
30995 cmp %_ASM_BX,%_ASM_CX
30996 jae bad_put_user
30997+
30998+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
30999+ mov pax_user_shadow_base,%_ASM_BX
31000+ cmp %_ASM_BX,%_ASM_CX
31001+ jb 1234f
31002+ xor %ebx,%ebx
31003+1234:
31004+#endif
31005+
31006+#endif
31007+
31008 ASM_STAC
31009-2: movw %ax,(%_ASM_CX)
31010+2: __copyuser_seg movw %ax,(_DEST)
31011 xor %eax,%eax
31012 EXIT
31013 ENDPROC(__put_user_2)
31014
31015 ENTRY(__put_user_4)
31016 ENTER
31017+
31018+#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF)
31019+ GET_THREAD_INFO(%_ASM_BX)
31020 mov TI_addr_limit(%_ASM_BX),%_ASM_BX
31021 sub $3,%_ASM_BX
31022 cmp %_ASM_BX,%_ASM_CX
31023 jae bad_put_user
31024+
31025+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
31026+ mov pax_user_shadow_base,%_ASM_BX
31027+ cmp %_ASM_BX,%_ASM_CX
31028+ jb 1234f
31029+ xor %ebx,%ebx
31030+1234:
31031+#endif
31032+
31033+#endif
31034+
31035 ASM_STAC
31036-3: movl %eax,(%_ASM_CX)
31037+3: __copyuser_seg movl %eax,(_DEST)
31038 xor %eax,%eax
31039 EXIT
31040 ENDPROC(__put_user_4)
31041
31042 ENTRY(__put_user_8)
31043 ENTER
31044+
31045+#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF)
31046+ GET_THREAD_INFO(%_ASM_BX)
31047 mov TI_addr_limit(%_ASM_BX),%_ASM_BX
31048 sub $7,%_ASM_BX
31049 cmp %_ASM_BX,%_ASM_CX
31050 jae bad_put_user
31051+
31052+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
31053+ mov pax_user_shadow_base,%_ASM_BX
31054+ cmp %_ASM_BX,%_ASM_CX
31055+ jb 1234f
31056+ xor %ebx,%ebx
31057+1234:
31058+#endif
31059+
31060+#endif
31061+
31062 ASM_STAC
31063-4: mov %_ASM_AX,(%_ASM_CX)
31064+4: __copyuser_seg mov %_ASM_AX,(_DEST)
31065 #ifdef CONFIG_X86_32
31066-5: movl %edx,4(%_ASM_CX)
31067+5: __copyuser_seg movl %edx,4(_DEST)
31068 #endif
31069 xor %eax,%eax
31070 EXIT
31071diff --git a/arch/x86/lib/rwsem.S b/arch/x86/lib/rwsem.S
31072index 5dff5f0..cadebf4 100644
31073--- a/arch/x86/lib/rwsem.S
31074+++ b/arch/x86/lib/rwsem.S
31075@@ -94,6 +94,7 @@ ENTRY(call_rwsem_down_read_failed)
31076 __ASM_SIZE(pop,_cfi) %__ASM_REG(dx)
31077 CFI_RESTORE __ASM_REG(dx)
31078 restore_common_regs
31079+ pax_force_retaddr
31080 ret
31081 CFI_ENDPROC
31082 ENDPROC(call_rwsem_down_read_failed)
31083@@ -104,6 +105,7 @@ ENTRY(call_rwsem_down_write_failed)
31084 movq %rax,%rdi
31085 call rwsem_down_write_failed
31086 restore_common_regs
31087+ pax_force_retaddr
31088 ret
31089 CFI_ENDPROC
31090 ENDPROC(call_rwsem_down_write_failed)
31091@@ -117,7 +119,8 @@ ENTRY(call_rwsem_wake)
31092 movq %rax,%rdi
31093 call rwsem_wake
31094 restore_common_regs
31095-1: ret
31096+1: pax_force_retaddr
31097+ ret
31098 CFI_ENDPROC
31099 ENDPROC(call_rwsem_wake)
31100
31101@@ -131,6 +134,7 @@ ENTRY(call_rwsem_downgrade_wake)
31102 __ASM_SIZE(pop,_cfi) %__ASM_REG(dx)
31103 CFI_RESTORE __ASM_REG(dx)
31104 restore_common_regs
31105+ pax_force_retaddr
31106 ret
31107 CFI_ENDPROC
31108 ENDPROC(call_rwsem_downgrade_wake)
31109diff --git a/arch/x86/lib/thunk_64.S b/arch/x86/lib/thunk_64.S
31110index b30b5eb..2b57052 100644
31111--- a/arch/x86/lib/thunk_64.S
31112+++ b/arch/x86/lib/thunk_64.S
31113@@ -9,6 +9,7 @@
31114 #include <asm/dwarf2.h>
31115 #include <asm/calling.h>
31116 #include <asm/asm.h>
31117+#include <asm/alternative-asm.h>
31118
31119 /* rdi: arg1 ... normal C conventions. rax is saved/restored. */
31120 .macro THUNK name, func, put_ret_addr_in_rdi=0
31121@@ -16,11 +17,11 @@
31122 \name:
31123 CFI_STARTPROC
31124
31125- /* this one pushes 9 elems, the next one would be %rIP */
31126- SAVE_ARGS
31127+ /* this one pushes 15+1 elems, the next one would be %rIP */
31128+ SAVE_ARGS 8
31129
31130 .if \put_ret_addr_in_rdi
31131- movq_cfi_restore 9*8, rdi
31132+ movq_cfi_restore RIP, rdi
31133 .endif
31134
31135 call \func
31136@@ -47,9 +48,10 @@
31137
31138 /* SAVE_ARGS below is used only for the .cfi directives it contains. */
31139 CFI_STARTPROC
31140- SAVE_ARGS
31141+ SAVE_ARGS 8
31142 restore:
31143- RESTORE_ARGS
31144+ RESTORE_ARGS 1,8
31145+ pax_force_retaddr
31146 ret
31147 CFI_ENDPROC
31148 _ASM_NOKPROBE(restore)
31149diff --git a/arch/x86/lib/usercopy_32.c b/arch/x86/lib/usercopy_32.c
31150index e2f5e21..4b22130 100644
31151--- a/arch/x86/lib/usercopy_32.c
31152+++ b/arch/x86/lib/usercopy_32.c
31153@@ -42,11 +42,13 @@ do { \
31154 int __d0; \
31155 might_fault(); \
31156 __asm__ __volatile__( \
31157+ __COPYUSER_SET_ES \
31158 ASM_STAC "\n" \
31159 "0: rep; stosl\n" \
31160 " movl %2,%0\n" \
31161 "1: rep; stosb\n" \
31162 "2: " ASM_CLAC "\n" \
31163+ __COPYUSER_RESTORE_ES \
31164 ".section .fixup,\"ax\"\n" \
31165 "3: lea 0(%2,%0,4),%0\n" \
31166 " jmp 2b\n" \
31167@@ -98,7 +100,7 @@ EXPORT_SYMBOL(__clear_user);
31168
31169 #ifdef CONFIG_X86_INTEL_USERCOPY
31170 static unsigned long
31171-__copy_user_intel(void __user *to, const void *from, unsigned long size)
31172+__generic_copy_to_user_intel(void __user *to, const void *from, unsigned long size)
31173 {
31174 int d0, d1;
31175 __asm__ __volatile__(
31176@@ -110,36 +112,36 @@ __copy_user_intel(void __user *to, const void *from, unsigned long size)
31177 " .align 2,0x90\n"
31178 "3: movl 0(%4), %%eax\n"
31179 "4: movl 4(%4), %%edx\n"
31180- "5: movl %%eax, 0(%3)\n"
31181- "6: movl %%edx, 4(%3)\n"
31182+ "5: "__copyuser_seg" movl %%eax, 0(%3)\n"
31183+ "6: "__copyuser_seg" movl %%edx, 4(%3)\n"
31184 "7: movl 8(%4), %%eax\n"
31185 "8: movl 12(%4),%%edx\n"
31186- "9: movl %%eax, 8(%3)\n"
31187- "10: movl %%edx, 12(%3)\n"
31188+ "9: "__copyuser_seg" movl %%eax, 8(%3)\n"
31189+ "10: "__copyuser_seg" movl %%edx, 12(%3)\n"
31190 "11: movl 16(%4), %%eax\n"
31191 "12: movl 20(%4), %%edx\n"
31192- "13: movl %%eax, 16(%3)\n"
31193- "14: movl %%edx, 20(%3)\n"
31194+ "13: "__copyuser_seg" movl %%eax, 16(%3)\n"
31195+ "14: "__copyuser_seg" movl %%edx, 20(%3)\n"
31196 "15: movl 24(%4), %%eax\n"
31197 "16: movl 28(%4), %%edx\n"
31198- "17: movl %%eax, 24(%3)\n"
31199- "18: movl %%edx, 28(%3)\n"
31200+ "17: "__copyuser_seg" movl %%eax, 24(%3)\n"
31201+ "18: "__copyuser_seg" movl %%edx, 28(%3)\n"
31202 "19: movl 32(%4), %%eax\n"
31203 "20: movl 36(%4), %%edx\n"
31204- "21: movl %%eax, 32(%3)\n"
31205- "22: movl %%edx, 36(%3)\n"
31206+ "21: "__copyuser_seg" movl %%eax, 32(%3)\n"
31207+ "22: "__copyuser_seg" movl %%edx, 36(%3)\n"
31208 "23: movl 40(%4), %%eax\n"
31209 "24: movl 44(%4), %%edx\n"
31210- "25: movl %%eax, 40(%3)\n"
31211- "26: movl %%edx, 44(%3)\n"
31212+ "25: "__copyuser_seg" movl %%eax, 40(%3)\n"
31213+ "26: "__copyuser_seg" movl %%edx, 44(%3)\n"
31214 "27: movl 48(%4), %%eax\n"
31215 "28: movl 52(%4), %%edx\n"
31216- "29: movl %%eax, 48(%3)\n"
31217- "30: movl %%edx, 52(%3)\n"
31218+ "29: "__copyuser_seg" movl %%eax, 48(%3)\n"
31219+ "30: "__copyuser_seg" movl %%edx, 52(%3)\n"
31220 "31: movl 56(%4), %%eax\n"
31221 "32: movl 60(%4), %%edx\n"
31222- "33: movl %%eax, 56(%3)\n"
31223- "34: movl %%edx, 60(%3)\n"
31224+ "33: "__copyuser_seg" movl %%eax, 56(%3)\n"
31225+ "34: "__copyuser_seg" movl %%edx, 60(%3)\n"
31226 " addl $-64, %0\n"
31227 " addl $64, %4\n"
31228 " addl $64, %3\n"
31229@@ -149,10 +151,116 @@ __copy_user_intel(void __user *to, const void *from, unsigned long size)
31230 " shrl $2, %0\n"
31231 " andl $3, %%eax\n"
31232 " cld\n"
31233+ __COPYUSER_SET_ES
31234 "99: rep; movsl\n"
31235 "36: movl %%eax, %0\n"
31236 "37: rep; movsb\n"
31237 "100:\n"
31238+ __COPYUSER_RESTORE_ES
31239+ ".section .fixup,\"ax\"\n"
31240+ "101: lea 0(%%eax,%0,4),%0\n"
31241+ " jmp 100b\n"
31242+ ".previous\n"
31243+ _ASM_EXTABLE(1b,100b)
31244+ _ASM_EXTABLE(2b,100b)
31245+ _ASM_EXTABLE(3b,100b)
31246+ _ASM_EXTABLE(4b,100b)
31247+ _ASM_EXTABLE(5b,100b)
31248+ _ASM_EXTABLE(6b,100b)
31249+ _ASM_EXTABLE(7b,100b)
31250+ _ASM_EXTABLE(8b,100b)
31251+ _ASM_EXTABLE(9b,100b)
31252+ _ASM_EXTABLE(10b,100b)
31253+ _ASM_EXTABLE(11b,100b)
31254+ _ASM_EXTABLE(12b,100b)
31255+ _ASM_EXTABLE(13b,100b)
31256+ _ASM_EXTABLE(14b,100b)
31257+ _ASM_EXTABLE(15b,100b)
31258+ _ASM_EXTABLE(16b,100b)
31259+ _ASM_EXTABLE(17b,100b)
31260+ _ASM_EXTABLE(18b,100b)
31261+ _ASM_EXTABLE(19b,100b)
31262+ _ASM_EXTABLE(20b,100b)
31263+ _ASM_EXTABLE(21b,100b)
31264+ _ASM_EXTABLE(22b,100b)
31265+ _ASM_EXTABLE(23b,100b)
31266+ _ASM_EXTABLE(24b,100b)
31267+ _ASM_EXTABLE(25b,100b)
31268+ _ASM_EXTABLE(26b,100b)
31269+ _ASM_EXTABLE(27b,100b)
31270+ _ASM_EXTABLE(28b,100b)
31271+ _ASM_EXTABLE(29b,100b)
31272+ _ASM_EXTABLE(30b,100b)
31273+ _ASM_EXTABLE(31b,100b)
31274+ _ASM_EXTABLE(32b,100b)
31275+ _ASM_EXTABLE(33b,100b)
31276+ _ASM_EXTABLE(34b,100b)
31277+ _ASM_EXTABLE(35b,100b)
31278+ _ASM_EXTABLE(36b,100b)
31279+ _ASM_EXTABLE(37b,100b)
31280+ _ASM_EXTABLE(99b,101b)
31281+ : "=&c"(size), "=&D" (d0), "=&S" (d1)
31282+ : "1"(to), "2"(from), "0"(size)
31283+ : "eax", "edx", "memory");
31284+ return size;
31285+}
31286+
31287+static unsigned long
31288+__generic_copy_from_user_intel(void *to, const void __user *from, unsigned long size)
31289+{
31290+ int d0, d1;
31291+ __asm__ __volatile__(
31292+ " .align 2,0x90\n"
31293+ "1: "__copyuser_seg" movl 32(%4), %%eax\n"
31294+ " cmpl $67, %0\n"
31295+ " jbe 3f\n"
31296+ "2: "__copyuser_seg" movl 64(%4), %%eax\n"
31297+ " .align 2,0x90\n"
31298+ "3: "__copyuser_seg" movl 0(%4), %%eax\n"
31299+ "4: "__copyuser_seg" movl 4(%4), %%edx\n"
31300+ "5: movl %%eax, 0(%3)\n"
31301+ "6: movl %%edx, 4(%3)\n"
31302+ "7: "__copyuser_seg" movl 8(%4), %%eax\n"
31303+ "8: "__copyuser_seg" movl 12(%4),%%edx\n"
31304+ "9: movl %%eax, 8(%3)\n"
31305+ "10: movl %%edx, 12(%3)\n"
31306+ "11: "__copyuser_seg" movl 16(%4), %%eax\n"
31307+ "12: "__copyuser_seg" movl 20(%4), %%edx\n"
31308+ "13: movl %%eax, 16(%3)\n"
31309+ "14: movl %%edx, 20(%3)\n"
31310+ "15: "__copyuser_seg" movl 24(%4), %%eax\n"
31311+ "16: "__copyuser_seg" movl 28(%4), %%edx\n"
31312+ "17: movl %%eax, 24(%3)\n"
31313+ "18: movl %%edx, 28(%3)\n"
31314+ "19: "__copyuser_seg" movl 32(%4), %%eax\n"
31315+ "20: "__copyuser_seg" movl 36(%4), %%edx\n"
31316+ "21: movl %%eax, 32(%3)\n"
31317+ "22: movl %%edx, 36(%3)\n"
31318+ "23: "__copyuser_seg" movl 40(%4), %%eax\n"
31319+ "24: "__copyuser_seg" movl 44(%4), %%edx\n"
31320+ "25: movl %%eax, 40(%3)\n"
31321+ "26: movl %%edx, 44(%3)\n"
31322+ "27: "__copyuser_seg" movl 48(%4), %%eax\n"
31323+ "28: "__copyuser_seg" movl 52(%4), %%edx\n"
31324+ "29: movl %%eax, 48(%3)\n"
31325+ "30: movl %%edx, 52(%3)\n"
31326+ "31: "__copyuser_seg" movl 56(%4), %%eax\n"
31327+ "32: "__copyuser_seg" movl 60(%4), %%edx\n"
31328+ "33: movl %%eax, 56(%3)\n"
31329+ "34: movl %%edx, 60(%3)\n"
31330+ " addl $-64, %0\n"
31331+ " addl $64, %4\n"
31332+ " addl $64, %3\n"
31333+ " cmpl $63, %0\n"
31334+ " ja 1b\n"
31335+ "35: movl %0, %%eax\n"
31336+ " shrl $2, %0\n"
31337+ " andl $3, %%eax\n"
31338+ " cld\n"
31339+ "99: rep; "__copyuser_seg" movsl\n"
31340+ "36: movl %%eax, %0\n"
31341+ "37: rep; "__copyuser_seg" movsb\n"
31342+ "100:\n"
31343 ".section .fixup,\"ax\"\n"
31344 "101: lea 0(%%eax,%0,4),%0\n"
31345 " jmp 100b\n"
31346@@ -207,41 +315,41 @@ __copy_user_zeroing_intel(void *to, const void __user *from, unsigned long size)
31347 int d0, d1;
31348 __asm__ __volatile__(
31349 " .align 2,0x90\n"
31350- "0: movl 32(%4), %%eax\n"
31351+ "0: "__copyuser_seg" movl 32(%4), %%eax\n"
31352 " cmpl $67, %0\n"
31353 " jbe 2f\n"
31354- "1: movl 64(%4), %%eax\n"
31355+ "1: "__copyuser_seg" movl 64(%4), %%eax\n"
31356 " .align 2,0x90\n"
31357- "2: movl 0(%4), %%eax\n"
31358- "21: movl 4(%4), %%edx\n"
31359+ "2: "__copyuser_seg" movl 0(%4), %%eax\n"
31360+ "21: "__copyuser_seg" movl 4(%4), %%edx\n"
31361 " movl %%eax, 0(%3)\n"
31362 " movl %%edx, 4(%3)\n"
31363- "3: movl 8(%4), %%eax\n"
31364- "31: movl 12(%4),%%edx\n"
31365+ "3: "__copyuser_seg" movl 8(%4), %%eax\n"
31366+ "31: "__copyuser_seg" movl 12(%4),%%edx\n"
31367 " movl %%eax, 8(%3)\n"
31368 " movl %%edx, 12(%3)\n"
31369- "4: movl 16(%4), %%eax\n"
31370- "41: movl 20(%4), %%edx\n"
31371+ "4: "__copyuser_seg" movl 16(%4), %%eax\n"
31372+ "41: "__copyuser_seg" movl 20(%4), %%edx\n"
31373 " movl %%eax, 16(%3)\n"
31374 " movl %%edx, 20(%3)\n"
31375- "10: movl 24(%4), %%eax\n"
31376- "51: movl 28(%4), %%edx\n"
31377+ "10: "__copyuser_seg" movl 24(%4), %%eax\n"
31378+ "51: "__copyuser_seg" movl 28(%4), %%edx\n"
31379 " movl %%eax, 24(%3)\n"
31380 " movl %%edx, 28(%3)\n"
31381- "11: movl 32(%4), %%eax\n"
31382- "61: movl 36(%4), %%edx\n"
31383+ "11: "__copyuser_seg" movl 32(%4), %%eax\n"
31384+ "61: "__copyuser_seg" movl 36(%4), %%edx\n"
31385 " movl %%eax, 32(%3)\n"
31386 " movl %%edx, 36(%3)\n"
31387- "12: movl 40(%4), %%eax\n"
31388- "71: movl 44(%4), %%edx\n"
31389+ "12: "__copyuser_seg" movl 40(%4), %%eax\n"
31390+ "71: "__copyuser_seg" movl 44(%4), %%edx\n"
31391 " movl %%eax, 40(%3)\n"
31392 " movl %%edx, 44(%3)\n"
31393- "13: movl 48(%4), %%eax\n"
31394- "81: movl 52(%4), %%edx\n"
31395+ "13: "__copyuser_seg" movl 48(%4), %%eax\n"
31396+ "81: "__copyuser_seg" movl 52(%4), %%edx\n"
31397 " movl %%eax, 48(%3)\n"
31398 " movl %%edx, 52(%3)\n"
31399- "14: movl 56(%4), %%eax\n"
31400- "91: movl 60(%4), %%edx\n"
31401+ "14: "__copyuser_seg" movl 56(%4), %%eax\n"
31402+ "91: "__copyuser_seg" movl 60(%4), %%edx\n"
31403 " movl %%eax, 56(%3)\n"
31404 " movl %%edx, 60(%3)\n"
31405 " addl $-64, %0\n"
31406@@ -253,9 +361,9 @@ __copy_user_zeroing_intel(void *to, const void __user *from, unsigned long size)
31407 " shrl $2, %0\n"
31408 " andl $3, %%eax\n"
31409 " cld\n"
31410- "6: rep; movsl\n"
31411+ "6: rep; "__copyuser_seg" movsl\n"
31412 " movl %%eax,%0\n"
31413- "7: rep; movsb\n"
31414+ "7: rep; "__copyuser_seg" movsb\n"
31415 "8:\n"
31416 ".section .fixup,\"ax\"\n"
31417 "9: lea 0(%%eax,%0,4),%0\n"
31418@@ -305,41 +413,41 @@ static unsigned long __copy_user_zeroing_intel_nocache(void *to,
31419
31420 __asm__ __volatile__(
31421 " .align 2,0x90\n"
31422- "0: movl 32(%4), %%eax\n"
31423+ "0: "__copyuser_seg" movl 32(%4), %%eax\n"
31424 " cmpl $67, %0\n"
31425 " jbe 2f\n"
31426- "1: movl 64(%4), %%eax\n"
31427+ "1: "__copyuser_seg" movl 64(%4), %%eax\n"
31428 " .align 2,0x90\n"
31429- "2: movl 0(%4), %%eax\n"
31430- "21: movl 4(%4), %%edx\n"
31431+ "2: "__copyuser_seg" movl 0(%4), %%eax\n"
31432+ "21: "__copyuser_seg" movl 4(%4), %%edx\n"
31433 " movnti %%eax, 0(%3)\n"
31434 " movnti %%edx, 4(%3)\n"
31435- "3: movl 8(%4), %%eax\n"
31436- "31: movl 12(%4),%%edx\n"
31437+ "3: "__copyuser_seg" movl 8(%4), %%eax\n"
31438+ "31: "__copyuser_seg" movl 12(%4),%%edx\n"
31439 " movnti %%eax, 8(%3)\n"
31440 " movnti %%edx, 12(%3)\n"
31441- "4: movl 16(%4), %%eax\n"
31442- "41: movl 20(%4), %%edx\n"
31443+ "4: "__copyuser_seg" movl 16(%4), %%eax\n"
31444+ "41: "__copyuser_seg" movl 20(%4), %%edx\n"
31445 " movnti %%eax, 16(%3)\n"
31446 " movnti %%edx, 20(%3)\n"
31447- "10: movl 24(%4), %%eax\n"
31448- "51: movl 28(%4), %%edx\n"
31449+ "10: "__copyuser_seg" movl 24(%4), %%eax\n"
31450+ "51: "__copyuser_seg" movl 28(%4), %%edx\n"
31451 " movnti %%eax, 24(%3)\n"
31452 " movnti %%edx, 28(%3)\n"
31453- "11: movl 32(%4), %%eax\n"
31454- "61: movl 36(%4), %%edx\n"
31455+ "11: "__copyuser_seg" movl 32(%4), %%eax\n"
31456+ "61: "__copyuser_seg" movl 36(%4), %%edx\n"
31457 " movnti %%eax, 32(%3)\n"
31458 " movnti %%edx, 36(%3)\n"
31459- "12: movl 40(%4), %%eax\n"
31460- "71: movl 44(%4), %%edx\n"
31461+ "12: "__copyuser_seg" movl 40(%4), %%eax\n"
31462+ "71: "__copyuser_seg" movl 44(%4), %%edx\n"
31463 " movnti %%eax, 40(%3)\n"
31464 " movnti %%edx, 44(%3)\n"
31465- "13: movl 48(%4), %%eax\n"
31466- "81: movl 52(%4), %%edx\n"
31467+ "13: "__copyuser_seg" movl 48(%4), %%eax\n"
31468+ "81: "__copyuser_seg" movl 52(%4), %%edx\n"
31469 " movnti %%eax, 48(%3)\n"
31470 " movnti %%edx, 52(%3)\n"
31471- "14: movl 56(%4), %%eax\n"
31472- "91: movl 60(%4), %%edx\n"
31473+ "14: "__copyuser_seg" movl 56(%4), %%eax\n"
31474+ "91: "__copyuser_seg" movl 60(%4), %%edx\n"
31475 " movnti %%eax, 56(%3)\n"
31476 " movnti %%edx, 60(%3)\n"
31477 " addl $-64, %0\n"
31478@@ -352,9 +460,9 @@ static unsigned long __copy_user_zeroing_intel_nocache(void *to,
31479 " shrl $2, %0\n"
31480 " andl $3, %%eax\n"
31481 " cld\n"
31482- "6: rep; movsl\n"
31483+ "6: rep; "__copyuser_seg" movsl\n"
31484 " movl %%eax,%0\n"
31485- "7: rep; movsb\n"
31486+ "7: rep; "__copyuser_seg" movsb\n"
31487 "8:\n"
31488 ".section .fixup,\"ax\"\n"
31489 "9: lea 0(%%eax,%0,4),%0\n"
31490@@ -399,41 +507,41 @@ static unsigned long __copy_user_intel_nocache(void *to,
31491
31492 __asm__ __volatile__(
31493 " .align 2,0x90\n"
31494- "0: movl 32(%4), %%eax\n"
31495+ "0: "__copyuser_seg" movl 32(%4), %%eax\n"
31496 " cmpl $67, %0\n"
31497 " jbe 2f\n"
31498- "1: movl 64(%4), %%eax\n"
31499+ "1: "__copyuser_seg" movl 64(%4), %%eax\n"
31500 " .align 2,0x90\n"
31501- "2: movl 0(%4), %%eax\n"
31502- "21: movl 4(%4), %%edx\n"
31503+ "2: "__copyuser_seg" movl 0(%4), %%eax\n"
31504+ "21: "__copyuser_seg" movl 4(%4), %%edx\n"
31505 " movnti %%eax, 0(%3)\n"
31506 " movnti %%edx, 4(%3)\n"
31507- "3: movl 8(%4), %%eax\n"
31508- "31: movl 12(%4),%%edx\n"
31509+ "3: "__copyuser_seg" movl 8(%4), %%eax\n"
31510+ "31: "__copyuser_seg" movl 12(%4),%%edx\n"
31511 " movnti %%eax, 8(%3)\n"
31512 " movnti %%edx, 12(%3)\n"
31513- "4: movl 16(%4), %%eax\n"
31514- "41: movl 20(%4), %%edx\n"
31515+ "4: "__copyuser_seg" movl 16(%4), %%eax\n"
31516+ "41: "__copyuser_seg" movl 20(%4), %%edx\n"
31517 " movnti %%eax, 16(%3)\n"
31518 " movnti %%edx, 20(%3)\n"
31519- "10: movl 24(%4), %%eax\n"
31520- "51: movl 28(%4), %%edx\n"
31521+ "10: "__copyuser_seg" movl 24(%4), %%eax\n"
31522+ "51: "__copyuser_seg" movl 28(%4), %%edx\n"
31523 " movnti %%eax, 24(%3)\n"
31524 " movnti %%edx, 28(%3)\n"
31525- "11: movl 32(%4), %%eax\n"
31526- "61: movl 36(%4), %%edx\n"
31527+ "11: "__copyuser_seg" movl 32(%4), %%eax\n"
31528+ "61: "__copyuser_seg" movl 36(%4), %%edx\n"
31529 " movnti %%eax, 32(%3)\n"
31530 " movnti %%edx, 36(%3)\n"
31531- "12: movl 40(%4), %%eax\n"
31532- "71: movl 44(%4), %%edx\n"
31533+ "12: "__copyuser_seg" movl 40(%4), %%eax\n"
31534+ "71: "__copyuser_seg" movl 44(%4), %%edx\n"
31535 " movnti %%eax, 40(%3)\n"
31536 " movnti %%edx, 44(%3)\n"
31537- "13: movl 48(%4), %%eax\n"
31538- "81: movl 52(%4), %%edx\n"
31539+ "13: "__copyuser_seg" movl 48(%4), %%eax\n"
31540+ "81: "__copyuser_seg" movl 52(%4), %%edx\n"
31541 " movnti %%eax, 48(%3)\n"
31542 " movnti %%edx, 52(%3)\n"
31543- "14: movl 56(%4), %%eax\n"
31544- "91: movl 60(%4), %%edx\n"
31545+ "14: "__copyuser_seg" movl 56(%4), %%eax\n"
31546+ "91: "__copyuser_seg" movl 60(%4), %%edx\n"
31547 " movnti %%eax, 56(%3)\n"
31548 " movnti %%edx, 60(%3)\n"
31549 " addl $-64, %0\n"
31550@@ -446,9 +554,9 @@ static unsigned long __copy_user_intel_nocache(void *to,
31551 " shrl $2, %0\n"
31552 " andl $3, %%eax\n"
31553 " cld\n"
31554- "6: rep; movsl\n"
31555+ "6: rep; "__copyuser_seg" movsl\n"
31556 " movl %%eax,%0\n"
31557- "7: rep; movsb\n"
31558+ "7: rep; "__copyuser_seg" movsb\n"
31559 "8:\n"
31560 ".section .fixup,\"ax\"\n"
31561 "9: lea 0(%%eax,%0,4),%0\n"
31562@@ -488,32 +596,36 @@ static unsigned long __copy_user_intel_nocache(void *to,
31563 */
31564 unsigned long __copy_user_zeroing_intel(void *to, const void __user *from,
31565 unsigned long size);
31566-unsigned long __copy_user_intel(void __user *to, const void *from,
31567+unsigned long __generic_copy_to_user_intel(void __user *to, const void *from,
31568+ unsigned long size);
31569+unsigned long __generic_copy_from_user_intel(void *to, const void __user *from,
31570 unsigned long size);
31571 unsigned long __copy_user_zeroing_intel_nocache(void *to,
31572 const void __user *from, unsigned long size);
31573 #endif /* CONFIG_X86_INTEL_USERCOPY */
31574
31575 /* Generic arbitrary sized copy. */
31576-#define __copy_user(to, from, size) \
31577+#define __copy_user(to, from, size, prefix, set, restore) \
31578 do { \
31579 int __d0, __d1, __d2; \
31580 __asm__ __volatile__( \
31581+ set \
31582 " cmp $7,%0\n" \
31583 " jbe 1f\n" \
31584 " movl %1,%0\n" \
31585 " negl %0\n" \
31586 " andl $7,%0\n" \
31587 " subl %0,%3\n" \
31588- "4: rep; movsb\n" \
31589+ "4: rep; "prefix"movsb\n" \
31590 " movl %3,%0\n" \
31591 " shrl $2,%0\n" \
31592 " andl $3,%3\n" \
31593 " .align 2,0x90\n" \
31594- "0: rep; movsl\n" \
31595+ "0: rep; "prefix"movsl\n" \
31596 " movl %3,%0\n" \
31597- "1: rep; movsb\n" \
31598+ "1: rep; "prefix"movsb\n" \
31599 "2:\n" \
31600+ restore \
31601 ".section .fixup,\"ax\"\n" \
31602 "5: addl %3,%0\n" \
31603 " jmp 2b\n" \
31604@@ -538,14 +650,14 @@ do { \
31605 " negl %0\n" \
31606 " andl $7,%0\n" \
31607 " subl %0,%3\n" \
31608- "4: rep; movsb\n" \
31609+ "4: rep; "__copyuser_seg"movsb\n" \
31610 " movl %3,%0\n" \
31611 " shrl $2,%0\n" \
31612 " andl $3,%3\n" \
31613 " .align 2,0x90\n" \
31614- "0: rep; movsl\n" \
31615+ "0: rep; "__copyuser_seg"movsl\n" \
31616 " movl %3,%0\n" \
31617- "1: rep; movsb\n" \
31618+ "1: rep; "__copyuser_seg"movsb\n" \
31619 "2:\n" \
31620 ".section .fixup,\"ax\"\n" \
31621 "5: addl %3,%0\n" \
31622@@ -572,9 +684,9 @@ unsigned long __copy_to_user_ll(void __user *to, const void *from,
31623 {
31624 stac();
31625 if (movsl_is_ok(to, from, n))
31626- __copy_user(to, from, n);
31627+ __copy_user(to, from, n, "", __COPYUSER_SET_ES, __COPYUSER_RESTORE_ES);
31628 else
31629- n = __copy_user_intel(to, from, n);
31630+ n = __generic_copy_to_user_intel(to, from, n);
31631 clac();
31632 return n;
31633 }
31634@@ -598,10 +710,9 @@ unsigned long __copy_from_user_ll_nozero(void *to, const void __user *from,
31635 {
31636 stac();
31637 if (movsl_is_ok(to, from, n))
31638- __copy_user(to, from, n);
31639+ __copy_user(to, from, n, __copyuser_seg, "", "");
31640 else
31641- n = __copy_user_intel((void __user *)to,
31642- (const void *)from, n);
31643+ n = __generic_copy_from_user_intel(to, from, n);
31644 clac();
31645 return n;
31646 }
31647@@ -632,58 +743,38 @@ unsigned long __copy_from_user_ll_nocache_nozero(void *to, const void __user *fr
31648 if (n > 64 && cpu_has_xmm2)
31649 n = __copy_user_intel_nocache(to, from, n);
31650 else
31651- __copy_user(to, from, n);
31652+ __copy_user(to, from, n, __copyuser_seg, "", "");
31653 #else
31654- __copy_user(to, from, n);
31655+ __copy_user(to, from, n, __copyuser_seg, "", "");
31656 #endif
31657 clac();
31658 return n;
31659 }
31660 EXPORT_SYMBOL(__copy_from_user_ll_nocache_nozero);
31661
31662-/**
31663- * copy_to_user: - Copy a block of data into user space.
31664- * @to: Destination address, in user space.
31665- * @from: Source address, in kernel space.
31666- * @n: Number of bytes to copy.
31667- *
31668- * Context: User context only. This function may sleep.
31669- *
31670- * Copy data from kernel space to user space.
31671- *
31672- * Returns number of bytes that could not be copied.
31673- * On success, this will be zero.
31674- */
31675-unsigned long _copy_to_user(void __user *to, const void *from, unsigned n)
31676+#ifdef CONFIG_PAX_MEMORY_UDEREF
31677+void __set_fs(mm_segment_t x)
31678 {
31679- if (access_ok(VERIFY_WRITE, to, n))
31680- n = __copy_to_user(to, from, n);
31681- return n;
31682+ switch (x.seg) {
31683+ case 0:
31684+ loadsegment(gs, 0);
31685+ break;
31686+ case TASK_SIZE_MAX:
31687+ loadsegment(gs, __USER_DS);
31688+ break;
31689+ case -1UL:
31690+ loadsegment(gs, __KERNEL_DS);
31691+ break;
31692+ default:
31693+ BUG();
31694+ }
31695 }
31696-EXPORT_SYMBOL(_copy_to_user);
31697+EXPORT_SYMBOL(__set_fs);
31698
31699-/**
31700- * copy_from_user: - Copy a block of data from user space.
31701- * @to: Destination address, in kernel space.
31702- * @from: Source address, in user space.
31703- * @n: Number of bytes to copy.
31704- *
31705- * Context: User context only. This function may sleep.
31706- *
31707- * Copy data from user space to kernel space.
31708- *
31709- * Returns number of bytes that could not be copied.
31710- * On success, this will be zero.
31711- *
31712- * If some data could not be copied, this function will pad the copied
31713- * data to the requested size using zero bytes.
31714- */
31715-unsigned long _copy_from_user(void *to, const void __user *from, unsigned n)
31716+void set_fs(mm_segment_t x)
31717 {
31718- if (access_ok(VERIFY_READ, from, n))
31719- n = __copy_from_user(to, from, n);
31720- else
31721- memset(to, 0, n);
31722- return n;
31723+ current_thread_info()->addr_limit = x;
31724+ __set_fs(x);
31725 }
31726-EXPORT_SYMBOL(_copy_from_user);
31727+EXPORT_SYMBOL(set_fs);
31728+#endif
31729diff --git a/arch/x86/lib/usercopy_64.c b/arch/x86/lib/usercopy_64.c
31730index 0a42327..7a82465 100644
31731--- a/arch/x86/lib/usercopy_64.c
31732+++ b/arch/x86/lib/usercopy_64.c
31733@@ -18,6 +18,7 @@ unsigned long __clear_user(void __user *addr, unsigned long size)
31734 might_fault();
31735 /* no memory constraint because it doesn't change any memory gcc knows
31736 about */
31737+ pax_open_userland();
31738 stac();
31739 asm volatile(
31740 " testq %[size8],%[size8]\n"
31741@@ -39,9 +40,10 @@ unsigned long __clear_user(void __user *addr, unsigned long size)
31742 _ASM_EXTABLE(0b,3b)
31743 _ASM_EXTABLE(1b,2b)
31744 : [size8] "=&c"(size), [dst] "=&D" (__d0)
31745- : [size1] "r"(size & 7), "[size8]" (size / 8), "[dst]"(addr),
31746+ : [size1] "r"(size & 7), "[size8]" (size / 8), "[dst]"(____m(addr)),
31747 [zero] "r" (0UL), [eight] "r" (8UL));
31748 clac();
31749+ pax_close_userland();
31750 return size;
31751 }
31752 EXPORT_SYMBOL(__clear_user);
31753@@ -54,12 +56,11 @@ unsigned long clear_user(void __user *to, unsigned long n)
31754 }
31755 EXPORT_SYMBOL(clear_user);
31756
31757-unsigned long copy_in_user(void __user *to, const void __user *from, unsigned len)
31758+unsigned long copy_in_user(void __user *to, const void __user *from, unsigned long len)
31759 {
31760- if (access_ok(VERIFY_WRITE, to, len) && access_ok(VERIFY_READ, from, len)) {
31761- return copy_user_generic((__force void *)to, (__force void *)from, len);
31762- }
31763- return len;
31764+ if (access_ok(VERIFY_WRITE, to, len) && access_ok(VERIFY_READ, from, len))
31765+ return copy_user_generic((void __force_kernel *)____m(to), (void __force_kernel *)____m(from), len);
31766+ return len;
31767 }
31768 EXPORT_SYMBOL(copy_in_user);
31769
31770@@ -69,8 +70,10 @@ EXPORT_SYMBOL(copy_in_user);
31771 * it is not necessary to optimize tail handling.
31772 */
31773 __visible unsigned long
31774-copy_user_handle_tail(char *to, char *from, unsigned len)
31775+copy_user_handle_tail(char __user *to, char __user *from, unsigned long len)
31776 {
31777+ clac();
31778+ pax_close_userland();
31779 for (; len; --len, to++) {
31780 char c;
31781
31782@@ -79,10 +82,9 @@ copy_user_handle_tail(char *to, char *from, unsigned len)
31783 if (__put_user_nocheck(c, to, sizeof(char)))
31784 break;
31785 }
31786- clac();
31787
31788 /* If the destination is a kernel buffer, we always clear the end */
31789- if (!__addr_ok(to))
31790+ if (!__addr_ok(to) && (unsigned long)to >= TASK_SIZE_MAX + pax_user_shadow_base)
31791 memset(to, 0, len);
31792 return len;
31793 }
31794diff --git a/arch/x86/mm/Makefile b/arch/x86/mm/Makefile
31795index c4cc740..60a7362 100644
31796--- a/arch/x86/mm/Makefile
31797+++ b/arch/x86/mm/Makefile
31798@@ -35,3 +35,7 @@ obj-$(CONFIG_NUMA_EMU) += numa_emulation.o
31799 obj-$(CONFIG_MEMTEST) += memtest.o
31800
31801 obj-$(CONFIG_X86_INTEL_MPX) += mpx.o
31802+
31803+quote:="
31804+obj-$(CONFIG_X86_64) += uderef_64.o
31805+CFLAGS_uderef_64.o := $(subst $(quote),,$(CONFIG_ARCH_HWEIGHT_CFLAGS))
31806diff --git a/arch/x86/mm/extable.c b/arch/x86/mm/extable.c
31807index 903ec1e..c4166b2 100644
31808--- a/arch/x86/mm/extable.c
31809+++ b/arch/x86/mm/extable.c
31810@@ -6,12 +6,24 @@
31811 static inline unsigned long
31812 ex_insn_addr(const struct exception_table_entry *x)
31813 {
31814- return (unsigned long)&x->insn + x->insn;
31815+ unsigned long reloc = 0;
31816+
31817+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
31818+ reloc = ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR;
31819+#endif
31820+
31821+ return (unsigned long)&x->insn + x->insn + reloc;
31822 }
31823 static inline unsigned long
31824 ex_fixup_addr(const struct exception_table_entry *x)
31825 {
31826- return (unsigned long)&x->fixup + x->fixup;
31827+ unsigned long reloc = 0;
31828+
31829+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
31830+ reloc = ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR;
31831+#endif
31832+
31833+ return (unsigned long)&x->fixup + x->fixup + reloc;
31834 }
31835
31836 int fixup_exception(struct pt_regs *regs)
31837@@ -20,7 +32,7 @@ int fixup_exception(struct pt_regs *regs)
31838 unsigned long new_ip;
31839
31840 #ifdef CONFIG_PNPBIOS
31841- if (unlikely(SEGMENT_IS_PNP_CODE(regs->cs))) {
31842+ if (unlikely(!v8086_mode(regs) && SEGMENT_IS_PNP_CODE(regs->cs))) {
31843 extern u32 pnp_bios_fault_eip, pnp_bios_fault_esp;
31844 extern u32 pnp_bios_is_utter_crap;
31845 pnp_bios_is_utter_crap = 1;
31846@@ -145,6 +157,13 @@ void sort_extable(struct exception_table_entry *start,
31847 i += 4;
31848 p->fixup -= i;
31849 i += 4;
31850+
31851+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
31852+ BUILD_BUG_ON(!IS_ENABLED(CONFIG_BUILDTIME_EXTABLE_SORT));
31853+ p->insn -= ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR;
31854+ p->fixup -= ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR;
31855+#endif
31856+
31857 }
31858 }
31859
31860diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
31861index ede025f..ecc2d96 100644
31862--- a/arch/x86/mm/fault.c
31863+++ b/arch/x86/mm/fault.c
31864@@ -13,12 +13,19 @@
31865 #include <linux/hugetlb.h> /* hstate_index_to_shift */
31866 #include <linux/prefetch.h> /* prefetchw */
31867 #include <linux/context_tracking.h> /* exception_enter(), ... */
31868+#include <linux/unistd.h>
31869+#include <linux/compiler.h>
31870
31871 #include <asm/traps.h> /* dotraplinkage, ... */
31872 #include <asm/pgalloc.h> /* pgd_*(), ... */
31873 #include <asm/kmemcheck.h> /* kmemcheck_*(), ... */
31874 #include <asm/fixmap.h> /* VSYSCALL_ADDR */
31875 #include <asm/vsyscall.h> /* emulate_vsyscall */
31876+#include <asm/tlbflush.h>
31877+
31878+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
31879+#include <asm/stacktrace.h>
31880+#endif
31881
31882 #define CREATE_TRACE_POINTS
31883 #include <asm/trace/exceptions.h>
31884@@ -59,7 +66,7 @@ static nokprobe_inline int kprobes_fault(struct pt_regs *regs)
31885 int ret = 0;
31886
31887 /* kprobe_running() needs smp_processor_id() */
31888- if (kprobes_built_in() && !user_mode_vm(regs)) {
31889+ if (kprobes_built_in() && !user_mode(regs)) {
31890 preempt_disable();
31891 if (kprobe_running() && kprobe_fault_handler(regs, 14))
31892 ret = 1;
31893@@ -120,7 +127,10 @@ check_prefetch_opcode(struct pt_regs *regs, unsigned char *instr,
31894 return !instr_lo || (instr_lo>>1) == 1;
31895 case 0x00:
31896 /* Prefetch instruction is 0x0F0D or 0x0F18 */
31897- if (probe_kernel_address(instr, opcode))
31898+ if (user_mode(regs)) {
31899+ if (__copy_from_user_inatomic(&opcode, (unsigned char __force_user *)(instr), 1))
31900+ return 0;
31901+ } else if (probe_kernel_address(instr, opcode))
31902 return 0;
31903
31904 *prefetch = (instr_lo == 0xF) &&
31905@@ -154,7 +164,10 @@ is_prefetch(struct pt_regs *regs, unsigned long error_code, unsigned long addr)
31906 while (instr < max_instr) {
31907 unsigned char opcode;
31908
31909- if (probe_kernel_address(instr, opcode))
31910+ if (user_mode(regs)) {
31911+ if (__copy_from_user_inatomic(&opcode, (unsigned char __force_user *)(instr), 1))
31912+ break;
31913+ } else if (probe_kernel_address(instr, opcode))
31914 break;
31915
31916 instr++;
31917@@ -185,6 +198,34 @@ force_sig_info_fault(int si_signo, int si_code, unsigned long address,
31918 force_sig_info(si_signo, &info, tsk);
31919 }
31920
31921+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
31922+static bool pax_is_fetch_fault(struct pt_regs *regs, unsigned long error_code, unsigned long address);
31923+#endif
31924+
31925+#ifdef CONFIG_PAX_EMUTRAMP
31926+static int pax_handle_fetch_fault(struct pt_regs *regs);
31927+#endif
31928+
31929+#ifdef CONFIG_PAX_PAGEEXEC
31930+static inline pmd_t * pax_get_pmd(struct mm_struct *mm, unsigned long address)
31931+{
31932+ pgd_t *pgd;
31933+ pud_t *pud;
31934+ pmd_t *pmd;
31935+
31936+ pgd = pgd_offset(mm, address);
31937+ if (!pgd_present(*pgd))
31938+ return NULL;
31939+ pud = pud_offset(pgd, address);
31940+ if (!pud_present(*pud))
31941+ return NULL;
31942+ pmd = pmd_offset(pud, address);
31943+ if (!pmd_present(*pmd))
31944+ return NULL;
31945+ return pmd;
31946+}
31947+#endif
31948+
31949 DEFINE_SPINLOCK(pgd_lock);
31950 LIST_HEAD(pgd_list);
31951
31952@@ -235,10 +276,27 @@ void vmalloc_sync_all(void)
31953 for (address = VMALLOC_START & PMD_MASK;
31954 address >= TASK_SIZE && address < FIXADDR_TOP;
31955 address += PMD_SIZE) {
31956+
31957+#ifdef CONFIG_PAX_PER_CPU_PGD
31958+ unsigned long cpu;
31959+#else
31960 struct page *page;
31961+#endif
31962
31963 spin_lock(&pgd_lock);
31964+
31965+#ifdef CONFIG_PAX_PER_CPU_PGD
31966+ for (cpu = 0; cpu < nr_cpu_ids; ++cpu) {
31967+ pgd_t *pgd = get_cpu_pgd(cpu, user);
31968+ pmd_t *ret;
31969+
31970+ ret = vmalloc_sync_one(pgd, address);
31971+ if (!ret)
31972+ break;
31973+ pgd = get_cpu_pgd(cpu, kernel);
31974+#else
31975 list_for_each_entry(page, &pgd_list, lru) {
31976+ pgd_t *pgd;
31977 spinlock_t *pgt_lock;
31978 pmd_t *ret;
31979
31980@@ -246,8 +304,14 @@ void vmalloc_sync_all(void)
31981 pgt_lock = &pgd_page_get_mm(page)->page_table_lock;
31982
31983 spin_lock(pgt_lock);
31984- ret = vmalloc_sync_one(page_address(page), address);
31985+ pgd = page_address(page);
31986+#endif
31987+
31988+ ret = vmalloc_sync_one(pgd, address);
31989+
31990+#ifndef CONFIG_PAX_PER_CPU_PGD
31991 spin_unlock(pgt_lock);
31992+#endif
31993
31994 if (!ret)
31995 break;
31996@@ -281,6 +345,12 @@ static noinline int vmalloc_fault(unsigned long address)
31997 * an interrupt in the middle of a task switch..
31998 */
31999 pgd_paddr = read_cr3();
32000+
32001+#ifdef CONFIG_PAX_PER_CPU_PGD
32002+ BUG_ON(__pa(get_cpu_pgd(smp_processor_id(), kernel)) != (pgd_paddr & __PHYSICAL_MASK));
32003+ vmalloc_sync_one(__va(pgd_paddr + PAGE_SIZE), address);
32004+#endif
32005+
32006 pmd_k = vmalloc_sync_one(__va(pgd_paddr), address);
32007 if (!pmd_k)
32008 return -1;
32009@@ -377,11 +447,25 @@ static noinline int vmalloc_fault(unsigned long address)
32010 * happen within a race in page table update. In the later
32011 * case just flush:
32012 */
32013- pgd = pgd_offset(current->active_mm, address);
32014+
32015 pgd_ref = pgd_offset_k(address);
32016 if (pgd_none(*pgd_ref))
32017 return -1;
32018
32019+#ifdef CONFIG_PAX_PER_CPU_PGD
32020+ BUG_ON(__pa(get_cpu_pgd(smp_processor_id(), kernel)) != (read_cr3() & __PHYSICAL_MASK));
32021+ pgd = pgd_offset_cpu(smp_processor_id(), user, address);
32022+ if (pgd_none(*pgd)) {
32023+ set_pgd(pgd, *pgd_ref);
32024+ arch_flush_lazy_mmu_mode();
32025+ } else {
32026+ BUG_ON(pgd_page_vaddr(*pgd) != pgd_page_vaddr(*pgd_ref));
32027+ }
32028+ pgd = pgd_offset_cpu(smp_processor_id(), kernel, address);
32029+#else
32030+ pgd = pgd_offset(current->active_mm, address);
32031+#endif
32032+
32033 if (pgd_none(*pgd)) {
32034 set_pgd(pgd, *pgd_ref);
32035 arch_flush_lazy_mmu_mode();
32036@@ -548,7 +632,7 @@ static int is_errata93(struct pt_regs *regs, unsigned long address)
32037 static int is_errata100(struct pt_regs *regs, unsigned long address)
32038 {
32039 #ifdef CONFIG_X86_64
32040- if ((regs->cs == __USER32_CS || (regs->cs & (1<<2))) && (address >> 32))
32041+ if ((regs->cs == __USER32_CS || (regs->cs & SEGMENT_LDT)) && (address >> 32))
32042 return 1;
32043 #endif
32044 return 0;
32045@@ -575,9 +659,9 @@ static int is_f00f_bug(struct pt_regs *regs, unsigned long address)
32046 }
32047
32048 static const char nx_warning[] = KERN_CRIT
32049-"kernel tried to execute NX-protected page - exploit attempt? (uid: %d)\n";
32050+"kernel tried to execute NX-protected page - exploit attempt? (uid: %d, task: %s, pid: %d)\n";
32051 static const char smep_warning[] = KERN_CRIT
32052-"unable to execute userspace code (SMEP?) (uid: %d)\n";
32053+"unable to execute userspace code (SMEP?) (uid: %d, task: %s, pid: %d)\n";
32054
32055 static void
32056 show_fault_oops(struct pt_regs *regs, unsigned long error_code,
32057@@ -586,7 +670,7 @@ show_fault_oops(struct pt_regs *regs, unsigned long error_code,
32058 if (!oops_may_print())
32059 return;
32060
32061- if (error_code & PF_INSTR) {
32062+ if ((__supported_pte_mask & _PAGE_NX) && (error_code & PF_INSTR)) {
32063 unsigned int level;
32064 pgd_t *pgd;
32065 pte_t *pte;
32066@@ -597,13 +681,25 @@ show_fault_oops(struct pt_regs *regs, unsigned long error_code,
32067 pte = lookup_address_in_pgd(pgd, address, &level);
32068
32069 if (pte && pte_present(*pte) && !pte_exec(*pte))
32070- printk(nx_warning, from_kuid(&init_user_ns, current_uid()));
32071+ printk(nx_warning, from_kuid_munged(&init_user_ns, current_uid()), current->comm, task_pid_nr(current));
32072 if (pte && pte_present(*pte) && pte_exec(*pte) &&
32073 (pgd_flags(*pgd) & _PAGE_USER) &&
32074 (__read_cr4() & X86_CR4_SMEP))
32075- printk(smep_warning, from_kuid(&init_user_ns, current_uid()));
32076+ printk(smep_warning, from_kuid(&init_user_ns, current_uid()), current->comm, task_pid_nr(current));
32077 }
32078
32079+#ifdef CONFIG_PAX_KERNEXEC
32080+ if (init_mm.start_code <= address && address < init_mm.end_code) {
32081+ if (current->signal->curr_ip)
32082+ printk(KERN_EMERG "PAX: From %pI4: %s:%d, uid/euid: %u/%u, attempted to modify kernel code\n",
32083+ &current->signal->curr_ip, current->comm, task_pid_nr(current),
32084+ from_kuid_munged(&init_user_ns, current_uid()), from_kuid_munged(&init_user_ns, current_euid()));
32085+ else
32086+ printk(KERN_EMERG "PAX: %s:%d, uid/euid: %u/%u, attempted to modify kernel code\n", current->comm, task_pid_nr(current),
32087+ from_kuid_munged(&init_user_ns, current_uid()), from_kuid_munged(&init_user_ns, current_euid()));
32088+ }
32089+#endif
32090+
32091 printk(KERN_ALERT "BUG: unable to handle kernel ");
32092 if (address < PAGE_SIZE)
32093 printk(KERN_CONT "NULL pointer dereference");
32094@@ -782,6 +878,22 @@ __bad_area_nosemaphore(struct pt_regs *regs, unsigned long error_code,
32095 return;
32096 }
32097 #endif
32098+
32099+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
32100+ if (pax_is_fetch_fault(regs, error_code, address)) {
32101+
32102+#ifdef CONFIG_PAX_EMUTRAMP
32103+ switch (pax_handle_fetch_fault(regs)) {
32104+ case 2:
32105+ return;
32106+ }
32107+#endif
32108+
32109+ pax_report_fault(regs, (void *)regs->ip, (void *)regs->sp);
32110+ do_group_exit(SIGKILL);
32111+ }
32112+#endif
32113+
32114 /* Kernel addresses are always protection faults: */
32115 if (address >= TASK_SIZE)
32116 error_code |= PF_PROT;
32117@@ -864,7 +976,7 @@ do_sigbus(struct pt_regs *regs, unsigned long error_code, unsigned long address,
32118 if (fault & (VM_FAULT_HWPOISON|VM_FAULT_HWPOISON_LARGE)) {
32119 printk(KERN_ERR
32120 "MCE: Killing %s:%d due to hardware memory corruption fault at %lx\n",
32121- tsk->comm, tsk->pid, address);
32122+ tsk->comm, task_pid_nr(tsk), address);
32123 code = BUS_MCEERR_AR;
32124 }
32125 #endif
32126@@ -916,6 +1028,99 @@ static int spurious_fault_check(unsigned long error_code, pte_t *pte)
32127 return 1;
32128 }
32129
32130+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_PAGEEXEC)
32131+static int pax_handle_pageexec_fault(struct pt_regs *regs, struct mm_struct *mm, unsigned long address, unsigned long error_code)
32132+{
32133+ pte_t *pte;
32134+ pmd_t *pmd;
32135+ spinlock_t *ptl;
32136+ unsigned char pte_mask;
32137+
32138+ if ((__supported_pte_mask & _PAGE_NX) || (error_code & (PF_PROT|PF_USER)) != (PF_PROT|PF_USER) || v8086_mode(regs) ||
32139+ !(mm->pax_flags & MF_PAX_PAGEEXEC))
32140+ return 0;
32141+
32142+ /* PaX: it's our fault, let's handle it if we can */
32143+
32144+ /* PaX: take a look at read faults before acquiring any locks */
32145+ if (unlikely(!(error_code & PF_WRITE) && (regs->ip == address))) {
32146+ /* instruction fetch attempt from a protected page in user mode */
32147+ up_read(&mm->mmap_sem);
32148+
32149+#ifdef CONFIG_PAX_EMUTRAMP
32150+ switch (pax_handle_fetch_fault(regs)) {
32151+ case 2:
32152+ return 1;
32153+ }
32154+#endif
32155+
32156+ pax_report_fault(regs, (void *)regs->ip, (void *)regs->sp);
32157+ do_group_exit(SIGKILL);
32158+ }
32159+
32160+ pmd = pax_get_pmd(mm, address);
32161+ if (unlikely(!pmd))
32162+ return 0;
32163+
32164+ pte = pte_offset_map_lock(mm, pmd, address, &ptl);
32165+ if (unlikely(!(pte_val(*pte) & _PAGE_PRESENT) || pte_user(*pte))) {
32166+ pte_unmap_unlock(pte, ptl);
32167+ return 0;
32168+ }
32169+
32170+ if (unlikely((error_code & PF_WRITE) && !pte_write(*pte))) {
32171+ /* write attempt to a protected page in user mode */
32172+ pte_unmap_unlock(pte, ptl);
32173+ return 0;
32174+ }
32175+
32176+#ifdef CONFIG_SMP
32177+ if (likely(address > get_limit(regs->cs) && cpumask_test_cpu(smp_processor_id(), &mm->context.cpu_user_cs_mask)))
32178+#else
32179+ if (likely(address > get_limit(regs->cs)))
32180+#endif
32181+ {
32182+ set_pte(pte, pte_mkread(*pte));
32183+ __flush_tlb_one(address);
32184+ pte_unmap_unlock(pte, ptl);
32185+ up_read(&mm->mmap_sem);
32186+ return 1;
32187+ }
32188+
32189+ pte_mask = _PAGE_ACCESSED | _PAGE_USER | ((error_code & PF_WRITE) << (_PAGE_BIT_DIRTY-1));
32190+
32191+ /*
32192+ * PaX: fill DTLB with user rights and retry
32193+ */
32194+ __asm__ __volatile__ (
32195+ "orb %2,(%1)\n"
32196+#if defined(CONFIG_M586) || defined(CONFIG_M586TSC)
32197+/*
32198+ * PaX: let this uncommented 'invlpg' remind us on the behaviour of Intel's
32199+ * (and AMD's) TLBs. namely, they do not cache PTEs that would raise *any*
32200+ * page fault when examined during a TLB load attempt. this is true not only
32201+ * for PTEs holding a non-present entry but also present entries that will
32202+ * raise a page fault (such as those set up by PaX, or the copy-on-write
32203+ * mechanism). in effect it means that we do *not* need to flush the TLBs
32204+ * for our target pages since their PTEs are simply not in the TLBs at all.
32205+
32206+ * the best thing in omitting it is that we gain around 15-20% speed in the
32207+ * fast path of the page fault handler and can get rid of tracing since we
32208+ * can no longer flush unintended entries.
32209+ */
32210+ "invlpg (%0)\n"
32211+#endif
32212+ __copyuser_seg"testb $0,(%0)\n"
32213+ "xorb %3,(%1)\n"
32214+ :
32215+ : "r" (address), "r" (pte), "q" (pte_mask), "i" (_PAGE_USER)
32216+ : "memory", "cc");
32217+ pte_unmap_unlock(pte, ptl);
32218+ up_read(&mm->mmap_sem);
32219+ return 1;
32220+}
32221+#endif
32222+
32223 /*
32224 * Handle a spurious fault caused by a stale TLB entry.
32225 *
32226@@ -1001,6 +1206,9 @@ int show_unhandled_signals = 1;
32227 static inline int
32228 access_error(unsigned long error_code, struct vm_area_struct *vma)
32229 {
32230+ if ((__supported_pte_mask & _PAGE_NX) && (error_code & PF_INSTR) && !(vma->vm_flags & VM_EXEC))
32231+ return 1;
32232+
32233 if (error_code & PF_WRITE) {
32234 /* write, present and write, not present: */
32235 if (unlikely(!(vma->vm_flags & VM_WRITE)))
32236@@ -1035,7 +1243,7 @@ static inline bool smap_violation(int error_code, struct pt_regs *regs)
32237 if (error_code & PF_USER)
32238 return false;
32239
32240- if (!user_mode_vm(regs) && (regs->flags & X86_EFLAGS_AC))
32241+ if (!user_mode(regs) && (regs->flags & X86_EFLAGS_AC))
32242 return false;
32243
32244 return true;
32245@@ -1063,6 +1271,22 @@ __do_page_fault(struct pt_regs *regs, unsigned long error_code,
32246 tsk = current;
32247 mm = tsk->mm;
32248
32249+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
32250+ if (!user_mode(regs) && address < 2 * pax_user_shadow_base) {
32251+ if (!search_exception_tables(regs->ip)) {
32252+ printk(KERN_EMERG "PAX: please report this to pageexec@freemail.hu\n");
32253+ bad_area_nosemaphore(regs, error_code, address);
32254+ return;
32255+ }
32256+ if (address < pax_user_shadow_base) {
32257+ printk(KERN_EMERG "PAX: please report this to pageexec@freemail.hu\n");
32258+ printk(KERN_EMERG "PAX: faulting IP: %pS\n", (void *)regs->ip);
32259+ show_trace_log_lvl(NULL, NULL, (void *)regs->sp, regs->bp, KERN_EMERG);
32260+ } else
32261+ address -= pax_user_shadow_base;
32262+ }
32263+#endif
32264+
32265 /*
32266 * Detect and handle instructions that would cause a page fault for
32267 * both a tracked kernel page and a userspace page.
32268@@ -1140,7 +1364,7 @@ __do_page_fault(struct pt_regs *regs, unsigned long error_code,
32269 * User-mode registers count as a user access even for any
32270 * potential system fault or CPU buglet:
32271 */
32272- if (user_mode_vm(regs)) {
32273+ if (user_mode(regs)) {
32274 local_irq_enable();
32275 error_code |= PF_USER;
32276 flags |= FAULT_FLAG_USER;
32277@@ -1187,6 +1411,11 @@ retry:
32278 might_sleep();
32279 }
32280
32281+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_PAGEEXEC)
32282+ if (pax_handle_pageexec_fault(regs, mm, address, error_code))
32283+ return;
32284+#endif
32285+
32286 vma = find_vma(mm, address);
32287 if (unlikely(!vma)) {
32288 bad_area(regs, error_code, address);
32289@@ -1198,18 +1427,24 @@ retry:
32290 bad_area(regs, error_code, address);
32291 return;
32292 }
32293- if (error_code & PF_USER) {
32294- /*
32295- * Accessing the stack below %sp is always a bug.
32296- * The large cushion allows instructions like enter
32297- * and pusha to work. ("enter $65535, $31" pushes
32298- * 32 pointers and then decrements %sp by 65535.)
32299- */
32300- if (unlikely(address + 65536 + 32 * sizeof(unsigned long) < regs->sp)) {
32301- bad_area(regs, error_code, address);
32302- return;
32303- }
32304+ /*
32305+ * Accessing the stack below %sp is always a bug.
32306+ * The large cushion allows instructions like enter
32307+ * and pusha to work. ("enter $65535, $31" pushes
32308+ * 32 pointers and then decrements %sp by 65535.)
32309+ */
32310+ if (unlikely(address + 65536 + 32 * sizeof(unsigned long) < task_pt_regs(tsk)->sp)) {
32311+ bad_area(regs, error_code, address);
32312+ return;
32313 }
32314+
32315+#ifdef CONFIG_PAX_SEGMEXEC
32316+ if (unlikely((mm->pax_flags & MF_PAX_SEGMEXEC) && vma->vm_end - SEGMEXEC_TASK_SIZE - 1 < address - SEGMEXEC_TASK_SIZE - 1)) {
32317+ bad_area(regs, error_code, address);
32318+ return;
32319+ }
32320+#endif
32321+
32322 if (unlikely(expand_stack(vma, address))) {
32323 bad_area(regs, error_code, address);
32324 return;
32325@@ -1329,3 +1564,292 @@ trace_do_page_fault(struct pt_regs *regs, unsigned long error_code)
32326 }
32327 NOKPROBE_SYMBOL(trace_do_page_fault);
32328 #endif /* CONFIG_TRACING */
32329+
32330+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
32331+static bool pax_is_fetch_fault(struct pt_regs *regs, unsigned long error_code, unsigned long address)
32332+{
32333+ struct mm_struct *mm = current->mm;
32334+ unsigned long ip = regs->ip;
32335+
32336+ if (v8086_mode(regs))
32337+ ip = ((regs->cs & 0xffff) << 4) + (ip & 0xffff);
32338+
32339+#ifdef CONFIG_PAX_PAGEEXEC
32340+ if (mm->pax_flags & MF_PAX_PAGEEXEC) {
32341+ if ((__supported_pte_mask & _PAGE_NX) && (error_code & PF_INSTR))
32342+ return true;
32343+ if (!(error_code & (PF_PROT | PF_WRITE)) && ip == address)
32344+ return true;
32345+ return false;
32346+ }
32347+#endif
32348+
32349+#ifdef CONFIG_PAX_SEGMEXEC
32350+ if (mm->pax_flags & MF_PAX_SEGMEXEC) {
32351+ if (!(error_code & (PF_PROT | PF_WRITE)) && (ip + SEGMEXEC_TASK_SIZE == address))
32352+ return true;
32353+ return false;
32354+ }
32355+#endif
32356+
32357+ return false;
32358+}
32359+#endif
32360+
32361+#ifdef CONFIG_PAX_EMUTRAMP
32362+static int pax_handle_fetch_fault_32(struct pt_regs *regs)
32363+{
32364+ int err;
32365+
32366+ do { /* PaX: libffi trampoline emulation */
32367+ unsigned char mov, jmp;
32368+ unsigned int addr1, addr2;
32369+
32370+#ifdef CONFIG_X86_64
32371+ if ((regs->ip + 9) >> 32)
32372+ break;
32373+#endif
32374+
32375+ err = get_user(mov, (unsigned char __user *)regs->ip);
32376+ err |= get_user(addr1, (unsigned int __user *)(regs->ip + 1));
32377+ err |= get_user(jmp, (unsigned char __user *)(regs->ip + 5));
32378+ err |= get_user(addr2, (unsigned int __user *)(regs->ip + 6));
32379+
32380+ if (err)
32381+ break;
32382+
32383+ if (mov == 0xB8 && jmp == 0xE9) {
32384+ regs->ax = addr1;
32385+ regs->ip = (unsigned int)(regs->ip + addr2 + 10);
32386+ return 2;
32387+ }
32388+ } while (0);
32389+
32390+ do { /* PaX: gcc trampoline emulation #1 */
32391+ unsigned char mov1, mov2;
32392+ unsigned short jmp;
32393+ unsigned int addr1, addr2;
32394+
32395+#ifdef CONFIG_X86_64
32396+ if ((regs->ip + 11) >> 32)
32397+ break;
32398+#endif
32399+
32400+ err = get_user(mov1, (unsigned char __user *)regs->ip);
32401+ err |= get_user(addr1, (unsigned int __user *)(regs->ip + 1));
32402+ err |= get_user(mov2, (unsigned char __user *)(regs->ip + 5));
32403+ err |= get_user(addr2, (unsigned int __user *)(regs->ip + 6));
32404+ err |= get_user(jmp, (unsigned short __user *)(regs->ip + 10));
32405+
32406+ if (err)
32407+ break;
32408+
32409+ if (mov1 == 0xB9 && mov2 == 0xB8 && jmp == 0xE0FF) {
32410+ regs->cx = addr1;
32411+ regs->ax = addr2;
32412+ regs->ip = addr2;
32413+ return 2;
32414+ }
32415+ } while (0);
32416+
32417+ do { /* PaX: gcc trampoline emulation #2 */
32418+ unsigned char mov, jmp;
32419+ unsigned int addr1, addr2;
32420+
32421+#ifdef CONFIG_X86_64
32422+ if ((regs->ip + 9) >> 32)
32423+ break;
32424+#endif
32425+
32426+ err = get_user(mov, (unsigned char __user *)regs->ip);
32427+ err |= get_user(addr1, (unsigned int __user *)(regs->ip + 1));
32428+ err |= get_user(jmp, (unsigned char __user *)(regs->ip + 5));
32429+ err |= get_user(addr2, (unsigned int __user *)(regs->ip + 6));
32430+
32431+ if (err)
32432+ break;
32433+
32434+ if (mov == 0xB9 && jmp == 0xE9) {
32435+ regs->cx = addr1;
32436+ regs->ip = (unsigned int)(regs->ip + addr2 + 10);
32437+ return 2;
32438+ }
32439+ } while (0);
32440+
32441+ return 1; /* PaX in action */
32442+}
32443+
32444+#ifdef CONFIG_X86_64
32445+static int pax_handle_fetch_fault_64(struct pt_regs *regs)
32446+{
32447+ int err;
32448+
32449+ do { /* PaX: libffi trampoline emulation */
32450+ unsigned short mov1, mov2, jmp1;
32451+ unsigned char stcclc, jmp2;
32452+ unsigned long addr1, addr2;
32453+
32454+ err = get_user(mov1, (unsigned short __user *)regs->ip);
32455+ err |= get_user(addr1, (unsigned long __user *)(regs->ip + 2));
32456+ err |= get_user(mov2, (unsigned short __user *)(regs->ip + 10));
32457+ err |= get_user(addr2, (unsigned long __user *)(regs->ip + 12));
32458+ err |= get_user(stcclc, (unsigned char __user *)(regs->ip + 20));
32459+ err |= get_user(jmp1, (unsigned short __user *)(regs->ip + 21));
32460+ err |= get_user(jmp2, (unsigned char __user *)(regs->ip + 23));
32461+
32462+ if (err)
32463+ break;
32464+
32465+ if (mov1 == 0xBB49 && mov2 == 0xBA49 && (stcclc == 0xF8 || stcclc == 0xF9) && jmp1 == 0xFF49 && jmp2 == 0xE3) {
32466+ regs->r11 = addr1;
32467+ regs->r10 = addr2;
32468+ if (stcclc == 0xF8)
32469+ regs->flags &= ~X86_EFLAGS_CF;
32470+ else
32471+ regs->flags |= X86_EFLAGS_CF;
32472+ regs->ip = addr1;
32473+ return 2;
32474+ }
32475+ } while (0);
32476+
32477+ do { /* PaX: gcc trampoline emulation #1 */
32478+ unsigned short mov1, mov2, jmp1;
32479+ unsigned char jmp2;
32480+ unsigned int addr1;
32481+ unsigned long addr2;
32482+
32483+ err = get_user(mov1, (unsigned short __user *)regs->ip);
32484+ err |= get_user(addr1, (unsigned int __user *)(regs->ip + 2));
32485+ err |= get_user(mov2, (unsigned short __user *)(regs->ip + 6));
32486+ err |= get_user(addr2, (unsigned long __user *)(regs->ip + 8));
32487+ err |= get_user(jmp1, (unsigned short __user *)(regs->ip + 16));
32488+ err |= get_user(jmp2, (unsigned char __user *)(regs->ip + 18));
32489+
32490+ if (err)
32491+ break;
32492+
32493+ if (mov1 == 0xBB41 && mov2 == 0xBA49 && jmp1 == 0xFF49 && jmp2 == 0xE3) {
32494+ regs->r11 = addr1;
32495+ regs->r10 = addr2;
32496+ regs->ip = addr1;
32497+ return 2;
32498+ }
32499+ } while (0);
32500+
32501+ do { /* PaX: gcc trampoline emulation #2 */
32502+ unsigned short mov1, mov2, jmp1;
32503+ unsigned char jmp2;
32504+ unsigned long addr1, addr2;
32505+
32506+ err = get_user(mov1, (unsigned short __user *)regs->ip);
32507+ err |= get_user(addr1, (unsigned long __user *)(regs->ip + 2));
32508+ err |= get_user(mov2, (unsigned short __user *)(regs->ip + 10));
32509+ err |= get_user(addr2, (unsigned long __user *)(regs->ip + 12));
32510+ err |= get_user(jmp1, (unsigned short __user *)(regs->ip + 20));
32511+ err |= get_user(jmp2, (unsigned char __user *)(regs->ip + 22));
32512+
32513+ if (err)
32514+ break;
32515+
32516+ if (mov1 == 0xBB49 && mov2 == 0xBA49 && jmp1 == 0xFF49 && jmp2 == 0xE3) {
32517+ regs->r11 = addr1;
32518+ regs->r10 = addr2;
32519+ regs->ip = addr1;
32520+ return 2;
32521+ }
32522+ } while (0);
32523+
32524+ return 1; /* PaX in action */
32525+}
32526+#endif
32527+
32528+/*
32529+ * PaX: decide what to do with offenders (regs->ip = fault address)
32530+ *
32531+ * returns 1 when task should be killed
32532+ * 2 when gcc trampoline was detected
32533+ */
32534+static int pax_handle_fetch_fault(struct pt_regs *regs)
32535+{
32536+ if (v8086_mode(regs))
32537+ return 1;
32538+
32539+ if (!(current->mm->pax_flags & MF_PAX_EMUTRAMP))
32540+ return 1;
32541+
32542+#ifdef CONFIG_X86_32
32543+ return pax_handle_fetch_fault_32(regs);
32544+#else
32545+ if (regs->cs == __USER32_CS || (regs->cs & SEGMENT_LDT))
32546+ return pax_handle_fetch_fault_32(regs);
32547+ else
32548+ return pax_handle_fetch_fault_64(regs);
32549+#endif
32550+}
32551+#endif
32552+
32553+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
32554+void pax_report_insns(struct pt_regs *regs, void *pc, void *sp)
32555+{
32556+ long i;
32557+
32558+ printk(KERN_ERR "PAX: bytes at PC: ");
32559+ for (i = 0; i < 20; i++) {
32560+ unsigned char c;
32561+ if (get_user(c, (unsigned char __force_user *)pc+i))
32562+ printk(KERN_CONT "?? ");
32563+ else
32564+ printk(KERN_CONT "%02x ", c);
32565+ }
32566+ printk("\n");
32567+
32568+ printk(KERN_ERR "PAX: bytes at SP-%lu: ", (unsigned long)sizeof(long));
32569+ for (i = -1; i < 80 / (long)sizeof(long); i++) {
32570+ unsigned long c;
32571+ if (get_user(c, (unsigned long __force_user *)sp+i)) {
32572+#ifdef CONFIG_X86_32
32573+ printk(KERN_CONT "???????? ");
32574+#else
32575+ if ((regs->cs == __USER32_CS || (regs->cs & SEGMENT_LDT)))
32576+ printk(KERN_CONT "???????? ???????? ");
32577+ else
32578+ printk(KERN_CONT "???????????????? ");
32579+#endif
32580+ } else {
32581+#ifdef CONFIG_X86_64
32582+ if ((regs->cs == __USER32_CS || (regs->cs & SEGMENT_LDT))) {
32583+ printk(KERN_CONT "%08x ", (unsigned int)c);
32584+ printk(KERN_CONT "%08x ", (unsigned int)(c >> 32));
32585+ } else
32586+#endif
32587+ printk(KERN_CONT "%0*lx ", 2 * (int)sizeof(long), c);
32588+ }
32589+ }
32590+ printk("\n");
32591+}
32592+#endif
32593+
32594+/**
32595+ * probe_kernel_write(): safely attempt to write to a location
32596+ * @dst: address to write to
32597+ * @src: pointer to the data that shall be written
32598+ * @size: size of the data chunk
32599+ *
32600+ * Safely write to address @dst from the buffer at @src. If a kernel fault
32601+ * happens, handle that and return -EFAULT.
32602+ */
32603+long notrace probe_kernel_write(void *dst, const void *src, size_t size)
32604+{
32605+ long ret;
32606+ mm_segment_t old_fs = get_fs();
32607+
32608+ set_fs(KERNEL_DS);
32609+ pagefault_disable();
32610+ pax_open_kernel();
32611+ ret = __copy_to_user_inatomic((void __force_user *)dst, src, size);
32612+ pax_close_kernel();
32613+ pagefault_enable();
32614+ set_fs(old_fs);
32615+
32616+ return ret ? -EFAULT : 0;
32617+}
32618diff --git a/arch/x86/mm/gup.c b/arch/x86/mm/gup.c
32619index 81bf3d2..7ef25c2 100644
32620--- a/arch/x86/mm/gup.c
32621+++ b/arch/x86/mm/gup.c
32622@@ -268,7 +268,7 @@ int __get_user_pages_fast(unsigned long start, int nr_pages, int write,
32623 addr = start;
32624 len = (unsigned long) nr_pages << PAGE_SHIFT;
32625 end = start + len;
32626- if (unlikely(!access_ok(write ? VERIFY_WRITE : VERIFY_READ,
32627+ if (unlikely(!access_ok_noprefault(write ? VERIFY_WRITE : VERIFY_READ,
32628 (void __user *)start, len)))
32629 return 0;
32630
32631@@ -344,6 +344,10 @@ int get_user_pages_fast(unsigned long start, int nr_pages, int write,
32632 goto slow_irqon;
32633 #endif
32634
32635+ if (unlikely(!access_ok_noprefault(write ? VERIFY_WRITE : VERIFY_READ,
32636+ (void __user *)start, len)))
32637+ return 0;
32638+
32639 /*
32640 * XXX: batch / limit 'nr', to avoid large irq off latency
32641 * needs some instrumenting to determine the common sizes used by
32642diff --git a/arch/x86/mm/highmem_32.c b/arch/x86/mm/highmem_32.c
32643index 4500142..53a363c 100644
32644--- a/arch/x86/mm/highmem_32.c
32645+++ b/arch/x86/mm/highmem_32.c
32646@@ -45,7 +45,11 @@ void *kmap_atomic_prot(struct page *page, pgprot_t prot)
32647 idx = type + KM_TYPE_NR*smp_processor_id();
32648 vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
32649 BUG_ON(!pte_none(*(kmap_pte-idx)));
32650+
32651+ pax_open_kernel();
32652 set_pte(kmap_pte-idx, mk_pte(page, prot));
32653+ pax_close_kernel();
32654+
32655 arch_flush_lazy_mmu_mode();
32656
32657 return (void *)vaddr;
32658diff --git a/arch/x86/mm/hugetlbpage.c b/arch/x86/mm/hugetlbpage.c
32659index 42982b2..7168fc3 100644
32660--- a/arch/x86/mm/hugetlbpage.c
32661+++ b/arch/x86/mm/hugetlbpage.c
32662@@ -74,23 +74,24 @@ int pud_huge(pud_t pud)
32663 #ifdef CONFIG_HUGETLB_PAGE
32664 static unsigned long hugetlb_get_unmapped_area_bottomup(struct file *file,
32665 unsigned long addr, unsigned long len,
32666- unsigned long pgoff, unsigned long flags)
32667+ unsigned long pgoff, unsigned long flags, unsigned long offset)
32668 {
32669 struct hstate *h = hstate_file(file);
32670 struct vm_unmapped_area_info info;
32671-
32672+
32673 info.flags = 0;
32674 info.length = len;
32675 info.low_limit = current->mm->mmap_legacy_base;
32676 info.high_limit = TASK_SIZE;
32677 info.align_mask = PAGE_MASK & ~huge_page_mask(h);
32678 info.align_offset = 0;
32679+ info.threadstack_offset = offset;
32680 return vm_unmapped_area(&info);
32681 }
32682
32683 static unsigned long hugetlb_get_unmapped_area_topdown(struct file *file,
32684 unsigned long addr0, unsigned long len,
32685- unsigned long pgoff, unsigned long flags)
32686+ unsigned long pgoff, unsigned long flags, unsigned long offset)
32687 {
32688 struct hstate *h = hstate_file(file);
32689 struct vm_unmapped_area_info info;
32690@@ -102,6 +103,7 @@ static unsigned long hugetlb_get_unmapped_area_topdown(struct file *file,
32691 info.high_limit = current->mm->mmap_base;
32692 info.align_mask = PAGE_MASK & ~huge_page_mask(h);
32693 info.align_offset = 0;
32694+ info.threadstack_offset = offset;
32695 addr = vm_unmapped_area(&info);
32696
32697 /*
32698@@ -114,6 +116,12 @@ static unsigned long hugetlb_get_unmapped_area_topdown(struct file *file,
32699 VM_BUG_ON(addr != -ENOMEM);
32700 info.flags = 0;
32701 info.low_limit = TASK_UNMAPPED_BASE;
32702+
32703+#ifdef CONFIG_PAX_RANDMMAP
32704+ if (current->mm->pax_flags & MF_PAX_RANDMMAP)
32705+ info.low_limit += current->mm->delta_mmap;
32706+#endif
32707+
32708 info.high_limit = TASK_SIZE;
32709 addr = vm_unmapped_area(&info);
32710 }
32711@@ -128,10 +136,20 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
32712 struct hstate *h = hstate_file(file);
32713 struct mm_struct *mm = current->mm;
32714 struct vm_area_struct *vma;
32715+ unsigned long pax_task_size = TASK_SIZE;
32716+ unsigned long offset = gr_rand_threadstack_offset(mm, file, flags);
32717
32718 if (len & ~huge_page_mask(h))
32719 return -EINVAL;
32720- if (len > TASK_SIZE)
32721+
32722+#ifdef CONFIG_PAX_SEGMEXEC
32723+ if (mm->pax_flags & MF_PAX_SEGMEXEC)
32724+ pax_task_size = SEGMEXEC_TASK_SIZE;
32725+#endif
32726+
32727+ pax_task_size -= PAGE_SIZE;
32728+
32729+ if (len > pax_task_size)
32730 return -ENOMEM;
32731
32732 if (flags & MAP_FIXED) {
32733@@ -140,19 +158,22 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
32734 return addr;
32735 }
32736
32737+#ifdef CONFIG_PAX_RANDMMAP
32738+ if (!(mm->pax_flags & MF_PAX_RANDMMAP))
32739+#endif
32740+
32741 if (addr) {
32742 addr = ALIGN(addr, huge_page_size(h));
32743 vma = find_vma(mm, addr);
32744- if (TASK_SIZE - len >= addr &&
32745- (!vma || addr + len <= vma->vm_start))
32746+ if (pax_task_size - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
32747 return addr;
32748 }
32749 if (mm->get_unmapped_area == arch_get_unmapped_area)
32750 return hugetlb_get_unmapped_area_bottomup(file, addr, len,
32751- pgoff, flags);
32752+ pgoff, flags, offset);
32753 else
32754 return hugetlb_get_unmapped_area_topdown(file, addr, len,
32755- pgoff, flags);
32756+ pgoff, flags, offset);
32757 }
32758 #endif /* CONFIG_HUGETLB_PAGE */
32759
32760diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c
32761index a110efc..a31a18f 100644
32762--- a/arch/x86/mm/init.c
32763+++ b/arch/x86/mm/init.c
32764@@ -4,6 +4,7 @@
32765 #include <linux/swap.h>
32766 #include <linux/memblock.h>
32767 #include <linux/bootmem.h> /* for max_low_pfn */
32768+#include <linux/tboot.h>
32769
32770 #include <asm/cacheflush.h>
32771 #include <asm/e820.h>
32772@@ -17,6 +18,8 @@
32773 #include <asm/proto.h>
32774 #include <asm/dma.h> /* for MAX_DMA_PFN */
32775 #include <asm/microcode.h>
32776+#include <asm/desc.h>
32777+#include <asm/bios_ebda.h>
32778
32779 /*
32780 * We need to define the tracepoints somewhere, and tlb.c
32781@@ -620,7 +623,18 @@ void __init init_mem_mapping(void)
32782 early_ioremap_page_table_range_init();
32783 #endif
32784
32785+#ifdef CONFIG_PAX_PER_CPU_PGD
32786+ clone_pgd_range(get_cpu_pgd(0, kernel) + KERNEL_PGD_BOUNDARY,
32787+ swapper_pg_dir + KERNEL_PGD_BOUNDARY,
32788+ KERNEL_PGD_PTRS);
32789+ clone_pgd_range(get_cpu_pgd(0, user) + KERNEL_PGD_BOUNDARY,
32790+ swapper_pg_dir + KERNEL_PGD_BOUNDARY,
32791+ KERNEL_PGD_PTRS);
32792+ load_cr3(get_cpu_pgd(0, kernel));
32793+#else
32794 load_cr3(swapper_pg_dir);
32795+#endif
32796+
32797 __flush_tlb_all();
32798
32799 early_memtest(0, max_pfn_mapped << PAGE_SHIFT);
32800@@ -636,10 +650,40 @@ void __init init_mem_mapping(void)
32801 * Access has to be given to non-kernel-ram areas as well, these contain the PCI
32802 * mmio resources as well as potential bios/acpi data regions.
32803 */
32804+
32805+#ifdef CONFIG_GRKERNSEC_KMEM
32806+static unsigned int ebda_start __read_only;
32807+static unsigned int ebda_end __read_only;
32808+#endif
32809+
32810 int devmem_is_allowed(unsigned long pagenr)
32811 {
32812- if (pagenr < 256)
32813+#ifdef CONFIG_GRKERNSEC_KMEM
32814+ /* allow BDA */
32815+ if (!pagenr)
32816 return 1;
32817+ /* allow EBDA */
32818+ if (pagenr >= ebda_start && pagenr < ebda_end)
32819+ return 1;
32820+ /* if tboot is in use, allow access to its hardcoded serial log range */
32821+ if (tboot_enabled() && ((0x60000 >> PAGE_SHIFT) <= pagenr) && (pagenr < (0x68000 >> PAGE_SHIFT)))
32822+ return 1;
32823+#else
32824+ if (!pagenr)
32825+ return 1;
32826+#ifdef CONFIG_VM86
32827+ if (pagenr < (ISA_START_ADDRESS >> PAGE_SHIFT))
32828+ return 1;
32829+#endif
32830+#endif
32831+
32832+ if ((ISA_START_ADDRESS >> PAGE_SHIFT) <= pagenr && pagenr < (ISA_END_ADDRESS >> PAGE_SHIFT))
32833+ return 1;
32834+#ifdef CONFIG_GRKERNSEC_KMEM
32835+ /* throw out everything else below 1MB */
32836+ if (pagenr <= 256)
32837+ return 0;
32838+#endif
32839 if (iomem_is_exclusive(pagenr << PAGE_SHIFT))
32840 return 0;
32841 if (!page_is_ram(pagenr))
32842@@ -685,8 +729,117 @@ void free_init_pages(char *what, unsigned long begin, unsigned long end)
32843 #endif
32844 }
32845
32846+#ifdef CONFIG_GRKERNSEC_KMEM
32847+static inline void gr_init_ebda(void)
32848+{
32849+ unsigned int ebda_addr;
32850+ unsigned int ebda_size = 0;
32851+
32852+ ebda_addr = get_bios_ebda();
32853+ if (ebda_addr) {
32854+ ebda_size = *(unsigned char *)phys_to_virt(ebda_addr);
32855+ ebda_size <<= 10;
32856+ }
32857+ if (ebda_addr && ebda_size) {
32858+ ebda_start = ebda_addr >> PAGE_SHIFT;
32859+ ebda_end = min((unsigned int)PAGE_ALIGN(ebda_addr + ebda_size), (unsigned int)0xa0000) >> PAGE_SHIFT;
32860+ } else {
32861+ ebda_start = 0x9f000 >> PAGE_SHIFT;
32862+ ebda_end = 0xa0000 >> PAGE_SHIFT;
32863+ }
32864+}
32865+#else
32866+static inline void gr_init_ebda(void) { }
32867+#endif
32868+
32869 void free_initmem(void)
32870 {
32871+#ifdef CONFIG_PAX_KERNEXEC
32872+#ifdef CONFIG_X86_32
32873+ /* PaX: limit KERNEL_CS to actual size */
32874+ unsigned long addr, limit;
32875+ struct desc_struct d;
32876+ int cpu;
32877+#else
32878+ pgd_t *pgd;
32879+ pud_t *pud;
32880+ pmd_t *pmd;
32881+ unsigned long addr, end;
32882+#endif
32883+#endif
32884+
32885+ gr_init_ebda();
32886+
32887+#ifdef CONFIG_PAX_KERNEXEC
32888+#ifdef CONFIG_X86_32
32889+ limit = paravirt_enabled() ? ktva_ktla(0xffffffff) : (unsigned long)&_etext;
32890+ limit = (limit - 1UL) >> PAGE_SHIFT;
32891+
32892+ memset(__LOAD_PHYSICAL_ADDR + PAGE_OFFSET, POISON_FREE_INITMEM, PAGE_SIZE);
32893+ for (cpu = 0; cpu < nr_cpu_ids; cpu++) {
32894+ pack_descriptor(&d, get_desc_base(&get_cpu_gdt_table(cpu)[GDT_ENTRY_KERNEL_CS]), limit, 0x9B, 0xC);
32895+ write_gdt_entry(get_cpu_gdt_table(cpu), GDT_ENTRY_KERNEL_CS, &d, DESCTYPE_S);
32896+ write_gdt_entry(get_cpu_gdt_table(cpu), GDT_ENTRY_KERNEXEC_KERNEL_CS, &d, DESCTYPE_S);
32897+ }
32898+
32899+ /* PaX: make KERNEL_CS read-only */
32900+ addr = PFN_ALIGN(ktla_ktva((unsigned long)&_text));
32901+ if (!paravirt_enabled())
32902+ set_memory_ro(addr, (PFN_ALIGN(_sdata) - addr) >> PAGE_SHIFT);
32903+/*
32904+ for (addr = ktla_ktva((unsigned long)&_text); addr < (unsigned long)&_sdata; addr += PMD_SIZE) {
32905+ pgd = pgd_offset_k(addr);
32906+ pud = pud_offset(pgd, addr);
32907+ pmd = pmd_offset(pud, addr);
32908+ set_pmd(pmd, __pmd(pmd_val(*pmd) & ~_PAGE_RW));
32909+ }
32910+*/
32911+#ifdef CONFIG_X86_PAE
32912+ set_memory_nx(PFN_ALIGN(__init_begin), (PFN_ALIGN(__init_end) - PFN_ALIGN(__init_begin)) >> PAGE_SHIFT);
32913+/*
32914+ for (addr = (unsigned long)&__init_begin; addr < (unsigned long)&__init_end; addr += PMD_SIZE) {
32915+ pgd = pgd_offset_k(addr);
32916+ pud = pud_offset(pgd, addr);
32917+ pmd = pmd_offset(pud, addr);
32918+ set_pmd(pmd, __pmd(pmd_val(*pmd) | (_PAGE_NX & __supported_pte_mask)));
32919+ }
32920+*/
32921+#endif
32922+
32923+#ifdef CONFIG_MODULES
32924+ set_memory_4k((unsigned long)MODULES_EXEC_VADDR, (MODULES_EXEC_END - MODULES_EXEC_VADDR) >> PAGE_SHIFT);
32925+#endif
32926+
32927+#else
32928+ /* PaX: make kernel code/rodata read-only, rest non-executable */
32929+ for (addr = __START_KERNEL_map; addr < __START_KERNEL_map + KERNEL_IMAGE_SIZE; addr += PMD_SIZE) {
32930+ pgd = pgd_offset_k(addr);
32931+ pud = pud_offset(pgd, addr);
32932+ pmd = pmd_offset(pud, addr);
32933+ if (!pmd_present(*pmd))
32934+ continue;
32935+ if ((unsigned long)_text <= addr && addr < (unsigned long)_sdata)
32936+ set_pmd(pmd, __pmd(pmd_val(*pmd) & ~_PAGE_RW));
32937+ else
32938+ set_pmd(pmd, __pmd(pmd_val(*pmd) | (_PAGE_NX & __supported_pte_mask)));
32939+ }
32940+
32941+ addr = (unsigned long)__va(__pa(__START_KERNEL_map));
32942+ end = addr + KERNEL_IMAGE_SIZE;
32943+ for (; addr < end; addr += PMD_SIZE) {
32944+ pgd = pgd_offset_k(addr);
32945+ pud = pud_offset(pgd, addr);
32946+ pmd = pmd_offset(pud, addr);
32947+ if (!pmd_present(*pmd))
32948+ continue;
32949+ if ((unsigned long)__va(__pa(_text)) <= addr && addr < (unsigned long)__va(__pa(_sdata)))
32950+ set_pmd(pmd, __pmd(pmd_val(*pmd) & ~_PAGE_RW));
32951+ }
32952+#endif
32953+
32954+ flush_tlb_all();
32955+#endif
32956+
32957 free_init_pages("unused kernel",
32958 (unsigned long)(&__init_begin),
32959 (unsigned long)(&__init_end));
32960diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
32961index c8140e1..59257fc 100644
32962--- a/arch/x86/mm/init_32.c
32963+++ b/arch/x86/mm/init_32.c
32964@@ -62,33 +62,6 @@ static noinline int do_test_wp_bit(void);
32965 bool __read_mostly __vmalloc_start_set = false;
32966
32967 /*
32968- * Creates a middle page table and puts a pointer to it in the
32969- * given global directory entry. This only returns the gd entry
32970- * in non-PAE compilation mode, since the middle layer is folded.
32971- */
32972-static pmd_t * __init one_md_table_init(pgd_t *pgd)
32973-{
32974- pud_t *pud;
32975- pmd_t *pmd_table;
32976-
32977-#ifdef CONFIG_X86_PAE
32978- if (!(pgd_val(*pgd) & _PAGE_PRESENT)) {
32979- pmd_table = (pmd_t *)alloc_low_page();
32980- paravirt_alloc_pmd(&init_mm, __pa(pmd_table) >> PAGE_SHIFT);
32981- set_pgd(pgd, __pgd(__pa(pmd_table) | _PAGE_PRESENT));
32982- pud = pud_offset(pgd, 0);
32983- BUG_ON(pmd_table != pmd_offset(pud, 0));
32984-
32985- return pmd_table;
32986- }
32987-#endif
32988- pud = pud_offset(pgd, 0);
32989- pmd_table = pmd_offset(pud, 0);
32990-
32991- return pmd_table;
32992-}
32993-
32994-/*
32995 * Create a page table and place a pointer to it in a middle page
32996 * directory entry:
32997 */
32998@@ -98,13 +71,28 @@ static pte_t * __init one_page_table_init(pmd_t *pmd)
32999 pte_t *page_table = (pte_t *)alloc_low_page();
33000
33001 paravirt_alloc_pte(&init_mm, __pa(page_table) >> PAGE_SHIFT);
33002+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
33003+ set_pmd(pmd, __pmd(__pa(page_table) | _KERNPG_TABLE));
33004+#else
33005 set_pmd(pmd, __pmd(__pa(page_table) | _PAGE_TABLE));
33006+#endif
33007 BUG_ON(page_table != pte_offset_kernel(pmd, 0));
33008 }
33009
33010 return pte_offset_kernel(pmd, 0);
33011 }
33012
33013+static pmd_t * __init one_md_table_init(pgd_t *pgd)
33014+{
33015+ pud_t *pud;
33016+ pmd_t *pmd_table;
33017+
33018+ pud = pud_offset(pgd, 0);
33019+ pmd_table = pmd_offset(pud, 0);
33020+
33021+ return pmd_table;
33022+}
33023+
33024 pmd_t * __init populate_extra_pmd(unsigned long vaddr)
33025 {
33026 int pgd_idx = pgd_index(vaddr);
33027@@ -208,6 +196,7 @@ page_table_range_init(unsigned long start, unsigned long end, pgd_t *pgd_base)
33028 int pgd_idx, pmd_idx;
33029 unsigned long vaddr;
33030 pgd_t *pgd;
33031+ pud_t *pud;
33032 pmd_t *pmd;
33033 pte_t *pte = NULL;
33034 unsigned long count = page_table_range_init_count(start, end);
33035@@ -222,8 +211,13 @@ page_table_range_init(unsigned long start, unsigned long end, pgd_t *pgd_base)
33036 pgd = pgd_base + pgd_idx;
33037
33038 for ( ; (pgd_idx < PTRS_PER_PGD) && (vaddr != end); pgd++, pgd_idx++) {
33039- pmd = one_md_table_init(pgd);
33040- pmd = pmd + pmd_index(vaddr);
33041+ pud = pud_offset(pgd, vaddr);
33042+ pmd = pmd_offset(pud, vaddr);
33043+
33044+#ifdef CONFIG_X86_PAE
33045+ paravirt_alloc_pmd(&init_mm, __pa(pmd) >> PAGE_SHIFT);
33046+#endif
33047+
33048 for (; (pmd_idx < PTRS_PER_PMD) && (vaddr != end);
33049 pmd++, pmd_idx++) {
33050 pte = page_table_kmap_check(one_page_table_init(pmd),
33051@@ -235,11 +229,20 @@ page_table_range_init(unsigned long start, unsigned long end, pgd_t *pgd_base)
33052 }
33053 }
33054
33055-static inline int is_kernel_text(unsigned long addr)
33056+static inline int is_kernel_text(unsigned long start, unsigned long end)
33057 {
33058- if (addr >= (unsigned long)_text && addr <= (unsigned long)__init_end)
33059- return 1;
33060- return 0;
33061+ if ((start >= ktla_ktva((unsigned long)_etext) ||
33062+ end <= ktla_ktva((unsigned long)_stext)) &&
33063+ (start >= ktla_ktva((unsigned long)_einittext) ||
33064+ end <= ktla_ktva((unsigned long)_sinittext)) &&
33065+
33066+#ifdef CONFIG_ACPI_SLEEP
33067+ (start >= (unsigned long)__va(acpi_wakeup_address) + 0x4000 || end <= (unsigned long)__va(acpi_wakeup_address)) &&
33068+#endif
33069+
33070+ (start > (unsigned long)__va(0xfffff) || end <= (unsigned long)__va(0xc0000)))
33071+ return 0;
33072+ return 1;
33073 }
33074
33075 /*
33076@@ -256,9 +259,10 @@ kernel_physical_mapping_init(unsigned long start,
33077 unsigned long last_map_addr = end;
33078 unsigned long start_pfn, end_pfn;
33079 pgd_t *pgd_base = swapper_pg_dir;
33080- int pgd_idx, pmd_idx, pte_ofs;
33081+ unsigned int pgd_idx, pmd_idx, pte_ofs;
33082 unsigned long pfn;
33083 pgd_t *pgd;
33084+ pud_t *pud;
33085 pmd_t *pmd;
33086 pte_t *pte;
33087 unsigned pages_2m, pages_4k;
33088@@ -291,8 +295,13 @@ repeat:
33089 pfn = start_pfn;
33090 pgd_idx = pgd_index((pfn<<PAGE_SHIFT) + PAGE_OFFSET);
33091 pgd = pgd_base + pgd_idx;
33092- for (; pgd_idx < PTRS_PER_PGD; pgd++, pgd_idx++) {
33093- pmd = one_md_table_init(pgd);
33094+ for (; pgd_idx < PTRS_PER_PGD && pfn < max_low_pfn; pgd++, pgd_idx++) {
33095+ pud = pud_offset(pgd, 0);
33096+ pmd = pmd_offset(pud, 0);
33097+
33098+#ifdef CONFIG_X86_PAE
33099+ paravirt_alloc_pmd(&init_mm, __pa(pmd) >> PAGE_SHIFT);
33100+#endif
33101
33102 if (pfn >= end_pfn)
33103 continue;
33104@@ -304,14 +313,13 @@ repeat:
33105 #endif
33106 for (; pmd_idx < PTRS_PER_PMD && pfn < end_pfn;
33107 pmd++, pmd_idx++) {
33108- unsigned int addr = pfn * PAGE_SIZE + PAGE_OFFSET;
33109+ unsigned long address = pfn * PAGE_SIZE + PAGE_OFFSET;
33110
33111 /*
33112 * Map with big pages if possible, otherwise
33113 * create normal page tables:
33114 */
33115 if (use_pse) {
33116- unsigned int addr2;
33117 pgprot_t prot = PAGE_KERNEL_LARGE;
33118 /*
33119 * first pass will use the same initial
33120@@ -322,11 +330,7 @@ repeat:
33121 _PAGE_PSE);
33122
33123 pfn &= PMD_MASK >> PAGE_SHIFT;
33124- addr2 = (pfn + PTRS_PER_PTE-1) * PAGE_SIZE +
33125- PAGE_OFFSET + PAGE_SIZE-1;
33126-
33127- if (is_kernel_text(addr) ||
33128- is_kernel_text(addr2))
33129+ if (is_kernel_text(address, address + PMD_SIZE))
33130 prot = PAGE_KERNEL_LARGE_EXEC;
33131
33132 pages_2m++;
33133@@ -343,7 +347,7 @@ repeat:
33134 pte_ofs = pte_index((pfn<<PAGE_SHIFT) + PAGE_OFFSET);
33135 pte += pte_ofs;
33136 for (; pte_ofs < PTRS_PER_PTE && pfn < end_pfn;
33137- pte++, pfn++, pte_ofs++, addr += PAGE_SIZE) {
33138+ pte++, pfn++, pte_ofs++, address += PAGE_SIZE) {
33139 pgprot_t prot = PAGE_KERNEL;
33140 /*
33141 * first pass will use the same initial
33142@@ -351,7 +355,7 @@ repeat:
33143 */
33144 pgprot_t init_prot = __pgprot(PTE_IDENT_ATTR);
33145
33146- if (is_kernel_text(addr))
33147+ if (is_kernel_text(address, address + PAGE_SIZE))
33148 prot = PAGE_KERNEL_EXEC;
33149
33150 pages_4k++;
33151@@ -474,7 +478,7 @@ void __init native_pagetable_init(void)
33152
33153 pud = pud_offset(pgd, va);
33154 pmd = pmd_offset(pud, va);
33155- if (!pmd_present(*pmd))
33156+ if (!pmd_present(*pmd)) // PAX TODO || pmd_large(*pmd))
33157 break;
33158
33159 /* should not be large page here */
33160@@ -532,12 +536,10 @@ void __init early_ioremap_page_table_range_init(void)
33161
33162 static void __init pagetable_init(void)
33163 {
33164- pgd_t *pgd_base = swapper_pg_dir;
33165-
33166- permanent_kmaps_init(pgd_base);
33167+ permanent_kmaps_init(swapper_pg_dir);
33168 }
33169
33170-pteval_t __supported_pte_mask __read_mostly = ~(_PAGE_NX | _PAGE_GLOBAL);
33171+pteval_t __supported_pte_mask __read_only = ~(_PAGE_NX | _PAGE_GLOBAL);
33172 EXPORT_SYMBOL_GPL(__supported_pte_mask);
33173
33174 /* user-defined highmem size */
33175@@ -787,10 +789,10 @@ void __init mem_init(void)
33176 ((unsigned long)&__init_end -
33177 (unsigned long)&__init_begin) >> 10,
33178
33179- (unsigned long)&_etext, (unsigned long)&_edata,
33180- ((unsigned long)&_edata - (unsigned long)&_etext) >> 10,
33181+ (unsigned long)&_sdata, (unsigned long)&_edata,
33182+ ((unsigned long)&_edata - (unsigned long)&_sdata) >> 10,
33183
33184- (unsigned long)&_text, (unsigned long)&_etext,
33185+ ktla_ktva((unsigned long)&_text), ktla_ktva((unsigned long)&_etext),
33186 ((unsigned long)&_etext - (unsigned long)&_text) >> 10);
33187
33188 /*
33189@@ -884,6 +886,7 @@ void set_kernel_text_rw(void)
33190 if (!kernel_set_to_readonly)
33191 return;
33192
33193+ start = ktla_ktva(start);
33194 pr_debug("Set kernel text: %lx - %lx for read write\n",
33195 start, start+size);
33196
33197@@ -898,6 +901,7 @@ void set_kernel_text_ro(void)
33198 if (!kernel_set_to_readonly)
33199 return;
33200
33201+ start = ktla_ktva(start);
33202 pr_debug("Set kernel text: %lx - %lx for read only\n",
33203 start, start+size);
33204
33205@@ -926,6 +930,7 @@ void mark_rodata_ro(void)
33206 unsigned long start = PFN_ALIGN(_text);
33207 unsigned long size = PFN_ALIGN(_etext) - start;
33208
33209+ start = ktla_ktva(start);
33210 set_pages_ro(virt_to_page(start), size >> PAGE_SHIFT);
33211 printk(KERN_INFO "Write protecting the kernel text: %luk\n",
33212 size >> 10);
33213diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
33214index 30eb05a..ae671ac 100644
33215--- a/arch/x86/mm/init_64.c
33216+++ b/arch/x86/mm/init_64.c
33217@@ -150,7 +150,7 @@ early_param("gbpages", parse_direct_gbpages_on);
33218 * around without checking the pgd every time.
33219 */
33220
33221-pteval_t __supported_pte_mask __read_mostly = ~0;
33222+pteval_t __supported_pte_mask __read_only = ~_PAGE_NX;
33223 EXPORT_SYMBOL_GPL(__supported_pte_mask);
33224
33225 int force_personality32;
33226@@ -183,7 +183,12 @@ void sync_global_pgds(unsigned long start, unsigned long end, int removed)
33227
33228 for (address = start; address <= end; address += PGDIR_SIZE) {
33229 const pgd_t *pgd_ref = pgd_offset_k(address);
33230+
33231+#ifdef CONFIG_PAX_PER_CPU_PGD
33232+ unsigned long cpu;
33233+#else
33234 struct page *page;
33235+#endif
33236
33237 /*
33238 * When it is called after memory hot remove, pgd_none()
33239@@ -194,6 +199,25 @@ void sync_global_pgds(unsigned long start, unsigned long end, int removed)
33240 continue;
33241
33242 spin_lock(&pgd_lock);
33243+
33244+#ifdef CONFIG_PAX_PER_CPU_PGD
33245+ for (cpu = 0; cpu < nr_cpu_ids; ++cpu) {
33246+ pgd_t *pgd = pgd_offset_cpu(cpu, user, address);
33247+
33248+ if (!pgd_none(*pgd_ref) && !pgd_none(*pgd))
33249+ BUG_ON(pgd_page_vaddr(*pgd)
33250+ != pgd_page_vaddr(*pgd_ref));
33251+
33252+ if (removed) {
33253+ if (pgd_none(*pgd_ref) && !pgd_none(*pgd))
33254+ pgd_clear(pgd);
33255+ } else {
33256+ if (pgd_none(*pgd))
33257+ set_pgd(pgd, *pgd_ref);
33258+ }
33259+
33260+ pgd = pgd_offset_cpu(cpu, kernel, address);
33261+#else
33262 list_for_each_entry(page, &pgd_list, lru) {
33263 pgd_t *pgd;
33264 spinlock_t *pgt_lock;
33265@@ -202,6 +226,7 @@ void sync_global_pgds(unsigned long start, unsigned long end, int removed)
33266 /* the pgt_lock only for Xen */
33267 pgt_lock = &pgd_page_get_mm(page)->page_table_lock;
33268 spin_lock(pgt_lock);
33269+#endif
33270
33271 if (!pgd_none(*pgd_ref) && !pgd_none(*pgd))
33272 BUG_ON(pgd_page_vaddr(*pgd)
33273@@ -215,7 +240,10 @@ void sync_global_pgds(unsigned long start, unsigned long end, int removed)
33274 set_pgd(pgd, *pgd_ref);
33275 }
33276
33277+#ifndef CONFIG_PAX_PER_CPU_PGD
33278 spin_unlock(pgt_lock);
33279+#endif
33280+
33281 }
33282 spin_unlock(&pgd_lock);
33283 }
33284@@ -248,7 +276,7 @@ static pud_t *fill_pud(pgd_t *pgd, unsigned long vaddr)
33285 {
33286 if (pgd_none(*pgd)) {
33287 pud_t *pud = (pud_t *)spp_getpage();
33288- pgd_populate(&init_mm, pgd, pud);
33289+ pgd_populate_kernel(&init_mm, pgd, pud);
33290 if (pud != pud_offset(pgd, 0))
33291 printk(KERN_ERR "PAGETABLE BUG #00! %p <-> %p\n",
33292 pud, pud_offset(pgd, 0));
33293@@ -260,7 +288,7 @@ static pmd_t *fill_pmd(pud_t *pud, unsigned long vaddr)
33294 {
33295 if (pud_none(*pud)) {
33296 pmd_t *pmd = (pmd_t *) spp_getpage();
33297- pud_populate(&init_mm, pud, pmd);
33298+ pud_populate_kernel(&init_mm, pud, pmd);
33299 if (pmd != pmd_offset(pud, 0))
33300 printk(KERN_ERR "PAGETABLE BUG #01! %p <-> %p\n",
33301 pmd, pmd_offset(pud, 0));
33302@@ -289,7 +317,9 @@ void set_pte_vaddr_pud(pud_t *pud_page, unsigned long vaddr, pte_t new_pte)
33303 pmd = fill_pmd(pud, vaddr);
33304 pte = fill_pte(pmd, vaddr);
33305
33306+ pax_open_kernel();
33307 set_pte(pte, new_pte);
33308+ pax_close_kernel();
33309
33310 /*
33311 * It's enough to flush this one mapping.
33312@@ -351,14 +381,12 @@ static void __init __init_extra_mapping(unsigned long phys, unsigned long size,
33313 pgd = pgd_offset_k((unsigned long)__va(phys));
33314 if (pgd_none(*pgd)) {
33315 pud = (pud_t *) spp_getpage();
33316- set_pgd(pgd, __pgd(__pa(pud) | _KERNPG_TABLE |
33317- _PAGE_USER));
33318+ set_pgd(pgd, __pgd(__pa(pud) | _PAGE_TABLE));
33319 }
33320 pud = pud_offset(pgd, (unsigned long)__va(phys));
33321 if (pud_none(*pud)) {
33322 pmd = (pmd_t *) spp_getpage();
33323- set_pud(pud, __pud(__pa(pmd) | _KERNPG_TABLE |
33324- _PAGE_USER));
33325+ set_pud(pud, __pud(__pa(pmd) | _PAGE_TABLE));
33326 }
33327 pmd = pmd_offset(pud, phys);
33328 BUG_ON(!pmd_none(*pmd));
33329@@ -599,7 +627,7 @@ phys_pud_init(pud_t *pud_page, unsigned long addr, unsigned long end,
33330 prot);
33331
33332 spin_lock(&init_mm.page_table_lock);
33333- pud_populate(&init_mm, pud, pmd);
33334+ pud_populate_kernel(&init_mm, pud, pmd);
33335 spin_unlock(&init_mm.page_table_lock);
33336 }
33337 __flush_tlb_all();
33338@@ -640,7 +668,7 @@ kernel_physical_mapping_init(unsigned long start,
33339 page_size_mask);
33340
33341 spin_lock(&init_mm.page_table_lock);
33342- pgd_populate(&init_mm, pgd, pud);
33343+ pgd_populate_kernel(&init_mm, pgd, pud);
33344 spin_unlock(&init_mm.page_table_lock);
33345 pgd_changed = true;
33346 }
33347diff --git a/arch/x86/mm/iomap_32.c b/arch/x86/mm/iomap_32.c
33348index 9ca35fc..4b2b7b7 100644
33349--- a/arch/x86/mm/iomap_32.c
33350+++ b/arch/x86/mm/iomap_32.c
33351@@ -64,7 +64,11 @@ void *kmap_atomic_prot_pfn(unsigned long pfn, pgprot_t prot)
33352 type = kmap_atomic_idx_push();
33353 idx = type + KM_TYPE_NR * smp_processor_id();
33354 vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
33355+
33356+ pax_open_kernel();
33357 set_pte(kmap_pte - idx, pfn_pte(pfn, prot));
33358+ pax_close_kernel();
33359+
33360 arch_flush_lazy_mmu_mode();
33361
33362 return (void *)vaddr;
33363diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c
33364index fdf617c..b9e85bc 100644
33365--- a/arch/x86/mm/ioremap.c
33366+++ b/arch/x86/mm/ioremap.c
33367@@ -56,8 +56,8 @@ static int __ioremap_check_ram(unsigned long start_pfn, unsigned long nr_pages,
33368 unsigned long i;
33369
33370 for (i = 0; i < nr_pages; ++i)
33371- if (pfn_valid(start_pfn + i) &&
33372- !PageReserved(pfn_to_page(start_pfn + i)))
33373+ if (pfn_valid(start_pfn + i) && (start_pfn + i >= 0x100 ||
33374+ !PageReserved(pfn_to_page(start_pfn + i))))
33375 return 1;
33376
33377 WARN_ONCE(1, "ioremap on RAM pfn 0x%lx\n", start_pfn);
33378@@ -283,7 +283,7 @@ EXPORT_SYMBOL(ioremap_prot);
33379 *
33380 * Caller must ensure there is only one unmapping for the same pointer.
33381 */
33382-void iounmap(volatile void __iomem *addr)
33383+void iounmap(const volatile void __iomem *addr)
33384 {
33385 struct vm_struct *p, *o;
33386
33387@@ -332,30 +332,29 @@ EXPORT_SYMBOL(iounmap);
33388 */
33389 void *xlate_dev_mem_ptr(phys_addr_t phys)
33390 {
33391- void *addr;
33392- unsigned long start = phys & PAGE_MASK;
33393-
33394 /* If page is RAM, we can use __va. Otherwise ioremap and unmap. */
33395- if (page_is_ram(start >> PAGE_SHIFT))
33396+ if (page_is_ram(phys >> PAGE_SHIFT))
33397+#ifdef CONFIG_HIGHMEM
33398+ if ((phys >> PAGE_SHIFT) < max_low_pfn)
33399+#endif
33400 return __va(phys);
33401
33402- addr = (void __force *)ioremap_cache(start, PAGE_SIZE);
33403- if (addr)
33404- addr = (void *)((unsigned long)addr | (phys & ~PAGE_MASK));
33405-
33406- return addr;
33407+ return (void __force *)ioremap_cache(phys, PAGE_SIZE);
33408 }
33409
33410 void unxlate_dev_mem_ptr(phys_addr_t phys, void *addr)
33411 {
33412 if (page_is_ram(phys >> PAGE_SHIFT))
33413+#ifdef CONFIG_HIGHMEM
33414+ if ((phys >> PAGE_SHIFT) < max_low_pfn)
33415+#endif
33416 return;
33417
33418 iounmap((void __iomem *)((unsigned long)addr & PAGE_MASK));
33419 return;
33420 }
33421
33422-static pte_t bm_pte[PAGE_SIZE/sizeof(pte_t)] __page_aligned_bss;
33423+static pte_t bm_pte[PAGE_SIZE/sizeof(pte_t)] __read_only __aligned(PAGE_SIZE);
33424
33425 static inline pmd_t * __init early_ioremap_pmd(unsigned long addr)
33426 {
33427@@ -391,8 +390,7 @@ void __init early_ioremap_init(void)
33428 early_ioremap_setup();
33429
33430 pmd = early_ioremap_pmd(fix_to_virt(FIX_BTMAP_BEGIN));
33431- memset(bm_pte, 0, sizeof(bm_pte));
33432- pmd_populate_kernel(&init_mm, pmd, bm_pte);
33433+ pmd_populate_user(&init_mm, pmd, bm_pte);
33434
33435 /*
33436 * The boot-ioremap range spans multiple pmds, for which
33437diff --git a/arch/x86/mm/kmemcheck/kmemcheck.c b/arch/x86/mm/kmemcheck/kmemcheck.c
33438index b4f2e7e..96c9c3e 100644
33439--- a/arch/x86/mm/kmemcheck/kmemcheck.c
33440+++ b/arch/x86/mm/kmemcheck/kmemcheck.c
33441@@ -628,9 +628,9 @@ bool kmemcheck_fault(struct pt_regs *regs, unsigned long address,
33442 * memory (e.g. tracked pages)? For now, we need this to avoid
33443 * invoking kmemcheck for PnP BIOS calls.
33444 */
33445- if (regs->flags & X86_VM_MASK)
33446+ if (v8086_mode(regs))
33447 return false;
33448- if (regs->cs != __KERNEL_CS)
33449+ if (regs->cs != __KERNEL_CS && regs->cs != __KERNEXEC_KERNEL_CS)
33450 return false;
33451
33452 pte = kmemcheck_pte_lookup(address);
33453diff --git a/arch/x86/mm/mmap.c b/arch/x86/mm/mmap.c
33454index df4552b..12c129c 100644
33455--- a/arch/x86/mm/mmap.c
33456+++ b/arch/x86/mm/mmap.c
33457@@ -52,7 +52,7 @@ static unsigned long stack_maxrandom_size(void)
33458 * Leave an at least ~128 MB hole with possible stack randomization.
33459 */
33460 #define MIN_GAP (128*1024*1024UL + stack_maxrandom_size())
33461-#define MAX_GAP (TASK_SIZE/6*5)
33462+#define MAX_GAP (pax_task_size/6*5)
33463
33464 static int mmap_is_legacy(void)
33465 {
33466@@ -82,27 +82,40 @@ static unsigned long mmap_rnd(void)
33467 return rnd << PAGE_SHIFT;
33468 }
33469
33470-static unsigned long mmap_base(void)
33471+static unsigned long mmap_base(struct mm_struct *mm)
33472 {
33473 unsigned long gap = rlimit(RLIMIT_STACK);
33474+ unsigned long pax_task_size = TASK_SIZE;
33475+
33476+#ifdef CONFIG_PAX_SEGMEXEC
33477+ if (mm->pax_flags & MF_PAX_SEGMEXEC)
33478+ pax_task_size = SEGMEXEC_TASK_SIZE;
33479+#endif
33480
33481 if (gap < MIN_GAP)
33482 gap = MIN_GAP;
33483 else if (gap > MAX_GAP)
33484 gap = MAX_GAP;
33485
33486- return PAGE_ALIGN(TASK_SIZE - gap - mmap_rnd());
33487+ return PAGE_ALIGN(pax_task_size - gap - mmap_rnd());
33488 }
33489
33490 /*
33491 * Bottom-up (legacy) layout on X86_32 did not support randomization, X86_64
33492 * does, but not when emulating X86_32
33493 */
33494-static unsigned long mmap_legacy_base(void)
33495+static unsigned long mmap_legacy_base(struct mm_struct *mm)
33496 {
33497- if (mmap_is_ia32())
33498+ if (mmap_is_ia32()) {
33499+
33500+#ifdef CONFIG_PAX_SEGMEXEC
33501+ if (mm->pax_flags & MF_PAX_SEGMEXEC)
33502+ return SEGMEXEC_TASK_UNMAPPED_BASE;
33503+ else
33504+#endif
33505+
33506 return TASK_UNMAPPED_BASE;
33507- else
33508+ } else
33509 return TASK_UNMAPPED_BASE + mmap_rnd();
33510 }
33511
33512@@ -112,8 +125,15 @@ static unsigned long mmap_legacy_base(void)
33513 */
33514 void arch_pick_mmap_layout(struct mm_struct *mm)
33515 {
33516- mm->mmap_legacy_base = mmap_legacy_base();
33517- mm->mmap_base = mmap_base();
33518+ mm->mmap_legacy_base = mmap_legacy_base(mm);
33519+ mm->mmap_base = mmap_base(mm);
33520+
33521+#ifdef CONFIG_PAX_RANDMMAP
33522+ if (mm->pax_flags & MF_PAX_RANDMMAP) {
33523+ mm->mmap_legacy_base += mm->delta_mmap;
33524+ mm->mmap_base -= mm->delta_mmap + mm->delta_stack;
33525+ }
33526+#endif
33527
33528 if (mmap_is_legacy()) {
33529 mm->mmap_base = mm->mmap_legacy_base;
33530diff --git a/arch/x86/mm/mmio-mod.c b/arch/x86/mm/mmio-mod.c
33531index 0057a7a..95c7edd 100644
33532--- a/arch/x86/mm/mmio-mod.c
33533+++ b/arch/x86/mm/mmio-mod.c
33534@@ -194,7 +194,7 @@ static void pre(struct kmmio_probe *p, struct pt_regs *regs,
33535 break;
33536 default:
33537 {
33538- unsigned char *ip = (unsigned char *)instptr;
33539+ unsigned char *ip = (unsigned char *)ktla_ktva(instptr);
33540 my_trace->opcode = MMIO_UNKNOWN_OP;
33541 my_trace->width = 0;
33542 my_trace->value = (*ip) << 16 | *(ip + 1) << 8 |
33543@@ -234,7 +234,7 @@ static void post(struct kmmio_probe *p, unsigned long condition,
33544 static void ioremap_trace_core(resource_size_t offset, unsigned long size,
33545 void __iomem *addr)
33546 {
33547- static atomic_t next_id;
33548+ static atomic_unchecked_t next_id;
33549 struct remap_trace *trace = kmalloc(sizeof(*trace), GFP_KERNEL);
33550 /* These are page-unaligned. */
33551 struct mmiotrace_map map = {
33552@@ -258,7 +258,7 @@ static void ioremap_trace_core(resource_size_t offset, unsigned long size,
33553 .private = trace
33554 },
33555 .phys = offset,
33556- .id = atomic_inc_return(&next_id)
33557+ .id = atomic_inc_return_unchecked(&next_id)
33558 };
33559 map.map_id = trace->id;
33560
33561@@ -290,7 +290,7 @@ void mmiotrace_ioremap(resource_size_t offset, unsigned long size,
33562 ioremap_trace_core(offset, size, addr);
33563 }
33564
33565-static void iounmap_trace_core(volatile void __iomem *addr)
33566+static void iounmap_trace_core(const volatile void __iomem *addr)
33567 {
33568 struct mmiotrace_map map = {
33569 .phys = 0,
33570@@ -328,7 +328,7 @@ not_enabled:
33571 }
33572 }
33573
33574-void mmiotrace_iounmap(volatile void __iomem *addr)
33575+void mmiotrace_iounmap(const volatile void __iomem *addr)
33576 {
33577 might_sleep();
33578 if (is_enabled()) /* recheck and proper locking in *_core() */
33579diff --git a/arch/x86/mm/numa.c b/arch/x86/mm/numa.c
33580index cd4785b..25188b6 100644
33581--- a/arch/x86/mm/numa.c
33582+++ b/arch/x86/mm/numa.c
33583@@ -499,7 +499,7 @@ static void __init numa_clear_kernel_node_hotplug(void)
33584 }
33585 }
33586
33587-static int __init numa_register_memblks(struct numa_meminfo *mi)
33588+static int __init __intentional_overflow(-1) numa_register_memblks(struct numa_meminfo *mi)
33589 {
33590 unsigned long uninitialized_var(pfn_align);
33591 int i, nid;
33592diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
33593index 536ea2f..f42c293 100644
33594--- a/arch/x86/mm/pageattr.c
33595+++ b/arch/x86/mm/pageattr.c
33596@@ -262,7 +262,7 @@ static inline pgprot_t static_protections(pgprot_t prot, unsigned long address,
33597 */
33598 #ifdef CONFIG_PCI_BIOS
33599 if (pcibios_enabled && within(pfn, BIOS_BEGIN >> PAGE_SHIFT, BIOS_END >> PAGE_SHIFT))
33600- pgprot_val(forbidden) |= _PAGE_NX;
33601+ pgprot_val(forbidden) |= _PAGE_NX & __supported_pte_mask;
33602 #endif
33603
33604 /*
33605@@ -270,9 +270,10 @@ static inline pgprot_t static_protections(pgprot_t prot, unsigned long address,
33606 * Does not cover __inittext since that is gone later on. On
33607 * 64bit we do not enforce !NX on the low mapping
33608 */
33609- if (within(address, (unsigned long)_text, (unsigned long)_etext))
33610- pgprot_val(forbidden) |= _PAGE_NX;
33611+ if (within(address, ktla_ktva((unsigned long)_text), ktla_ktva((unsigned long)_etext)))
33612+ pgprot_val(forbidden) |= _PAGE_NX & __supported_pte_mask;
33613
33614+#ifdef CONFIG_DEBUG_RODATA
33615 /*
33616 * The .rodata section needs to be read-only. Using the pfn
33617 * catches all aliases.
33618@@ -280,6 +281,7 @@ static inline pgprot_t static_protections(pgprot_t prot, unsigned long address,
33619 if (within(pfn, __pa_symbol(__start_rodata) >> PAGE_SHIFT,
33620 __pa_symbol(__end_rodata) >> PAGE_SHIFT))
33621 pgprot_val(forbidden) |= _PAGE_RW;
33622+#endif
33623
33624 #if defined(CONFIG_X86_64) && defined(CONFIG_DEBUG_RODATA)
33625 /*
33626@@ -318,6 +320,13 @@ static inline pgprot_t static_protections(pgprot_t prot, unsigned long address,
33627 }
33628 #endif
33629
33630+#ifdef CONFIG_PAX_KERNEXEC
33631+ if (within(pfn, __pa(ktla_ktva((unsigned long)&_text)), __pa((unsigned long)&_sdata))) {
33632+ pgprot_val(forbidden) |= _PAGE_RW;
33633+ pgprot_val(forbidden) |= _PAGE_NX & __supported_pte_mask;
33634+ }
33635+#endif
33636+
33637 prot = __pgprot(pgprot_val(prot) & ~pgprot_val(forbidden));
33638
33639 return prot;
33640@@ -440,23 +449,37 @@ EXPORT_SYMBOL_GPL(slow_virt_to_phys);
33641 static void __set_pmd_pte(pte_t *kpte, unsigned long address, pte_t pte)
33642 {
33643 /* change init_mm */
33644+ pax_open_kernel();
33645 set_pte_atomic(kpte, pte);
33646+
33647 #ifdef CONFIG_X86_32
33648 if (!SHARED_KERNEL_PMD) {
33649+
33650+#ifdef CONFIG_PAX_PER_CPU_PGD
33651+ unsigned long cpu;
33652+#else
33653 struct page *page;
33654+#endif
33655
33656+#ifdef CONFIG_PAX_PER_CPU_PGD
33657+ for (cpu = 0; cpu < nr_cpu_ids; ++cpu) {
33658+ pgd_t *pgd = get_cpu_pgd(cpu, kernel);
33659+#else
33660 list_for_each_entry(page, &pgd_list, lru) {
33661- pgd_t *pgd;
33662+ pgd_t *pgd = (pgd_t *)page_address(page);
33663+#endif
33664+
33665 pud_t *pud;
33666 pmd_t *pmd;
33667
33668- pgd = (pgd_t *)page_address(page) + pgd_index(address);
33669+ pgd += pgd_index(address);
33670 pud = pud_offset(pgd, address);
33671 pmd = pmd_offset(pud, address);
33672 set_pte_atomic((pte_t *)pmd, pte);
33673 }
33674 }
33675 #endif
33676+ pax_close_kernel();
33677 }
33678
33679 static int
33680diff --git a/arch/x86/mm/pat.c b/arch/x86/mm/pat.c
33681index 7ac6869..c0ba541 100644
33682--- a/arch/x86/mm/pat.c
33683+++ b/arch/x86/mm/pat.c
33684@@ -89,7 +89,7 @@ static inline enum page_cache_mode get_page_memtype(struct page *pg)
33685 unsigned long pg_flags = pg->flags & _PGMT_MASK;
33686
33687 if (pg_flags == _PGMT_DEFAULT)
33688- return -1;
33689+ return _PAGE_CACHE_MODE_NUM;
33690 else if (pg_flags == _PGMT_WC)
33691 return _PAGE_CACHE_MODE_WC;
33692 else if (pg_flags == _PGMT_UC_MINUS)
33693@@ -346,7 +346,7 @@ static int reserve_ram_pages_type(u64 start, u64 end,
33694
33695 page = pfn_to_page(pfn);
33696 type = get_page_memtype(page);
33697- if (type != -1) {
33698+ if (type != _PAGE_CACHE_MODE_NUM) {
33699 pr_info("reserve_ram_pages_type failed [mem %#010Lx-%#010Lx], track 0x%x, req 0x%x\n",
33700 start, end - 1, type, req_type);
33701 if (new_type)
33702@@ -498,7 +498,7 @@ int free_memtype(u64 start, u64 end)
33703
33704 if (!entry) {
33705 printk(KERN_INFO "%s:%d freeing invalid memtype [mem %#010Lx-%#010Lx]\n",
33706- current->comm, current->pid, start, end - 1);
33707+ current->comm, task_pid_nr(current), start, end - 1);
33708 return -EINVAL;
33709 }
33710
33711@@ -532,10 +532,10 @@ static enum page_cache_mode lookup_memtype(u64 paddr)
33712 page = pfn_to_page(paddr >> PAGE_SHIFT);
33713 rettype = get_page_memtype(page);
33714 /*
33715- * -1 from get_page_memtype() implies RAM page is in its
33716+ * _PAGE_CACHE_MODE_NUM from get_page_memtype() implies RAM page is in its
33717 * default state and not reserved, and hence of type WB
33718 */
33719- if (rettype == -1)
33720+ if (rettype == _PAGE_CACHE_MODE_NUM)
33721 rettype = _PAGE_CACHE_MODE_WB;
33722
33723 return rettype;
33724@@ -628,8 +628,8 @@ static inline int range_is_allowed(unsigned long pfn, unsigned long size)
33725
33726 while (cursor < to) {
33727 if (!devmem_is_allowed(pfn)) {
33728- printk(KERN_INFO "Program %s tried to access /dev/mem between [mem %#010Lx-%#010Lx]\n",
33729- current->comm, from, to - 1);
33730+ printk(KERN_INFO "Program %s tried to access /dev/mem between [mem %#010Lx-%#010Lx] (%#010Lx)\n",
33731+ current->comm, from, to - 1, cursor);
33732 return 0;
33733 }
33734 cursor += PAGE_SIZE;
33735@@ -700,7 +700,7 @@ int kernel_map_sync_memtype(u64 base, unsigned long size,
33736 if (ioremap_change_attr((unsigned long)__va(base), id_sz, pcm) < 0) {
33737 printk(KERN_INFO "%s:%d ioremap_change_attr failed %s "
33738 "for [mem %#010Lx-%#010Lx]\n",
33739- current->comm, current->pid,
33740+ current->comm, task_pid_nr(current),
33741 cattr_name(pcm),
33742 base, (unsigned long long)(base + size-1));
33743 return -EINVAL;
33744@@ -735,7 +735,7 @@ static int reserve_pfn_range(u64 paddr, unsigned long size, pgprot_t *vma_prot,
33745 pcm = lookup_memtype(paddr);
33746 if (want_pcm != pcm) {
33747 printk(KERN_WARNING "%s:%d map pfn RAM range req %s for [mem %#010Lx-%#010Lx], got %s\n",
33748- current->comm, current->pid,
33749+ current->comm, task_pid_nr(current),
33750 cattr_name(want_pcm),
33751 (unsigned long long)paddr,
33752 (unsigned long long)(paddr + size - 1),
33753@@ -757,7 +757,7 @@ static int reserve_pfn_range(u64 paddr, unsigned long size, pgprot_t *vma_prot,
33754 free_memtype(paddr, paddr + size);
33755 printk(KERN_ERR "%s:%d map pfn expected mapping type %s"
33756 " for [mem %#010Lx-%#010Lx], got %s\n",
33757- current->comm, current->pid,
33758+ current->comm, task_pid_nr(current),
33759 cattr_name(want_pcm),
33760 (unsigned long long)paddr,
33761 (unsigned long long)(paddr + size - 1),
33762diff --git a/arch/x86/mm/pat_rbtree.c b/arch/x86/mm/pat_rbtree.c
33763index 6582adc..fcc5d0b 100644
33764--- a/arch/x86/mm/pat_rbtree.c
33765+++ b/arch/x86/mm/pat_rbtree.c
33766@@ -161,7 +161,7 @@ success:
33767
33768 failure:
33769 printk(KERN_INFO "%s:%d conflicting memory types "
33770- "%Lx-%Lx %s<->%s\n", current->comm, current->pid, start,
33771+ "%Lx-%Lx %s<->%s\n", current->comm, task_pid_nr(current), start,
33772 end, cattr_name(found_type), cattr_name(match->type));
33773 return -EBUSY;
33774 }
33775diff --git a/arch/x86/mm/pf_in.c b/arch/x86/mm/pf_in.c
33776index 9f0614d..92ae64a 100644
33777--- a/arch/x86/mm/pf_in.c
33778+++ b/arch/x86/mm/pf_in.c
33779@@ -148,7 +148,7 @@ enum reason_type get_ins_type(unsigned long ins_addr)
33780 int i;
33781 enum reason_type rv = OTHERS;
33782
33783- p = (unsigned char *)ins_addr;
33784+ p = (unsigned char *)ktla_ktva(ins_addr);
33785 p += skip_prefix(p, &prf);
33786 p += get_opcode(p, &opcode);
33787
33788@@ -168,7 +168,7 @@ static unsigned int get_ins_reg_width(unsigned long ins_addr)
33789 struct prefix_bits prf;
33790 int i;
33791
33792- p = (unsigned char *)ins_addr;
33793+ p = (unsigned char *)ktla_ktva(ins_addr);
33794 p += skip_prefix(p, &prf);
33795 p += get_opcode(p, &opcode);
33796
33797@@ -191,7 +191,7 @@ unsigned int get_ins_mem_width(unsigned long ins_addr)
33798 struct prefix_bits prf;
33799 int i;
33800
33801- p = (unsigned char *)ins_addr;
33802+ p = (unsigned char *)ktla_ktva(ins_addr);
33803 p += skip_prefix(p, &prf);
33804 p += get_opcode(p, &opcode);
33805
33806@@ -415,7 +415,7 @@ unsigned long get_ins_reg_val(unsigned long ins_addr, struct pt_regs *regs)
33807 struct prefix_bits prf;
33808 int i;
33809
33810- p = (unsigned char *)ins_addr;
33811+ p = (unsigned char *)ktla_ktva(ins_addr);
33812 p += skip_prefix(p, &prf);
33813 p += get_opcode(p, &opcode);
33814 for (i = 0; i < ARRAY_SIZE(reg_rop); i++)
33815@@ -470,7 +470,7 @@ unsigned long get_ins_imm_val(unsigned long ins_addr)
33816 struct prefix_bits prf;
33817 int i;
33818
33819- p = (unsigned char *)ins_addr;
33820+ p = (unsigned char *)ktla_ktva(ins_addr);
33821 p += skip_prefix(p, &prf);
33822 p += get_opcode(p, &opcode);
33823 for (i = 0; i < ARRAY_SIZE(imm_wop); i++)
33824diff --git a/arch/x86/mm/pgtable.c b/arch/x86/mm/pgtable.c
33825index 7b22ada..b11e66f 100644
33826--- a/arch/x86/mm/pgtable.c
33827+++ b/arch/x86/mm/pgtable.c
33828@@ -97,10 +97,75 @@ static inline void pgd_list_del(pgd_t *pgd)
33829 list_del(&page->lru);
33830 }
33831
33832-#define UNSHARED_PTRS_PER_PGD \
33833- (SHARED_KERNEL_PMD ? KERNEL_PGD_BOUNDARY : PTRS_PER_PGD)
33834+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
33835+pgdval_t clone_pgd_mask __read_only = ~_PAGE_PRESENT;
33836
33837+void __shadow_user_pgds(pgd_t *dst, const pgd_t *src)
33838+{
33839+ unsigned int count = USER_PGD_PTRS;
33840
33841+ if (!pax_user_shadow_base)
33842+ return;
33843+
33844+ while (count--)
33845+ *dst++ = __pgd((pgd_val(*src++) | (_PAGE_NX & __supported_pte_mask)) & ~_PAGE_USER);
33846+}
33847+#endif
33848+
33849+#ifdef CONFIG_PAX_PER_CPU_PGD
33850+void __clone_user_pgds(pgd_t *dst, const pgd_t *src)
33851+{
33852+ unsigned int count = USER_PGD_PTRS;
33853+
33854+ while (count--) {
33855+ pgd_t pgd;
33856+
33857+#ifdef CONFIG_X86_64
33858+ pgd = __pgd(pgd_val(*src++) | _PAGE_USER);
33859+#else
33860+ pgd = *src++;
33861+#endif
33862+
33863+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
33864+ pgd = __pgd(pgd_val(pgd) & clone_pgd_mask);
33865+#endif
33866+
33867+ *dst++ = pgd;
33868+ }
33869+
33870+}
33871+#endif
33872+
33873+#ifdef CONFIG_X86_64
33874+#define pxd_t pud_t
33875+#define pyd_t pgd_t
33876+#define paravirt_release_pxd(pfn) paravirt_release_pud(pfn)
33877+#define pgtable_pxd_page_ctor(page) true
33878+#define pgtable_pxd_page_dtor(page) do {} while (0)
33879+#define pxd_free(mm, pud) pud_free((mm), (pud))
33880+#define pyd_populate(mm, pgd, pud) pgd_populate((mm), (pgd), (pud))
33881+#define pyd_offset(mm, address) pgd_offset((mm), (address))
33882+#define PYD_SIZE PGDIR_SIZE
33883+#define mm_inc_nr_pxds(mm) do {} while (0)
33884+#define mm_dec_nr_pxds(mm) do {} while (0)
33885+#else
33886+#define pxd_t pmd_t
33887+#define pyd_t pud_t
33888+#define paravirt_release_pxd(pfn) paravirt_release_pmd(pfn)
33889+#define pgtable_pxd_page_ctor(page) pgtable_pmd_page_ctor(page)
33890+#define pgtable_pxd_page_dtor(page) pgtable_pmd_page_dtor(page)
33891+#define pxd_free(mm, pud) pmd_free((mm), (pud))
33892+#define pyd_populate(mm, pgd, pud) pud_populate((mm), (pgd), (pud))
33893+#define pyd_offset(mm, address) pud_offset((mm), (address))
33894+#define PYD_SIZE PUD_SIZE
33895+#define mm_inc_nr_pxds(mm) mm_inc_nr_pmds(mm)
33896+#define mm_dec_nr_pxds(mm) mm_dec_nr_pmds(mm)
33897+#endif
33898+
33899+#ifdef CONFIG_PAX_PER_CPU_PGD
33900+static inline void pgd_ctor(struct mm_struct *mm, pgd_t *pgd) {}
33901+static inline void pgd_dtor(pgd_t *pgd) {}
33902+#else
33903 static void pgd_set_mm(pgd_t *pgd, struct mm_struct *mm)
33904 {
33905 BUILD_BUG_ON(sizeof(virt_to_page(pgd)->index) < sizeof(mm));
33906@@ -141,6 +206,7 @@ static void pgd_dtor(pgd_t *pgd)
33907 pgd_list_del(pgd);
33908 spin_unlock(&pgd_lock);
33909 }
33910+#endif
33911
33912 /*
33913 * List of all pgd's needed for non-PAE so it can invalidate entries
33914@@ -153,7 +219,7 @@ static void pgd_dtor(pgd_t *pgd)
33915 * -- nyc
33916 */
33917
33918-#ifdef CONFIG_X86_PAE
33919+#if defined(CONFIG_X86_32) && defined(CONFIG_X86_PAE)
33920 /*
33921 * In PAE mode, we need to do a cr3 reload (=tlb flush) when
33922 * updating the top-level pagetable entries to guarantee the
33923@@ -165,7 +231,7 @@ static void pgd_dtor(pgd_t *pgd)
33924 * not shared between pagetables (!SHARED_KERNEL_PMDS), we allocate
33925 * and initialize the kernel pmds here.
33926 */
33927-#define PREALLOCATED_PMDS UNSHARED_PTRS_PER_PGD
33928+#define PREALLOCATED_PXDS (SHARED_KERNEL_PMD ? KERNEL_PGD_BOUNDARY : PTRS_PER_PGD)
33929
33930 void pud_populate(struct mm_struct *mm, pud_t *pudp, pmd_t *pmd)
33931 {
33932@@ -183,46 +249,48 @@ void pud_populate(struct mm_struct *mm, pud_t *pudp, pmd_t *pmd)
33933 */
33934 flush_tlb_mm(mm);
33935 }
33936+#elif defined(CONFIG_X86_64) && defined(CONFIG_PAX_PER_CPU_PGD)
33937+#define PREALLOCATED_PXDS USER_PGD_PTRS
33938 #else /* !CONFIG_X86_PAE */
33939
33940 /* No need to prepopulate any pagetable entries in non-PAE modes. */
33941-#define PREALLOCATED_PMDS 0
33942+#define PREALLOCATED_PXDS 0
33943
33944 #endif /* CONFIG_X86_PAE */
33945
33946-static void free_pmds(struct mm_struct *mm, pmd_t *pmds[])
33947+static void free_pxds(struct mm_struct *mm, pxd_t *pxds[])
33948 {
33949 int i;
33950
33951- for(i = 0; i < PREALLOCATED_PMDS; i++)
33952- if (pmds[i]) {
33953- pgtable_pmd_page_dtor(virt_to_page(pmds[i]));
33954- free_page((unsigned long)pmds[i]);
33955- mm_dec_nr_pmds(mm);
33956+ for(i = 0; i < PREALLOCATED_PXDS; i++)
33957+ if (pxds[i]) {
33958+ pgtable_pxd_page_dtor(virt_to_page(pxds[i]));
33959+ free_page((unsigned long)pxds[i]);
33960+ mm_dec_nr_pxds(mm);
33961 }
33962 }
33963
33964-static int preallocate_pmds(struct mm_struct *mm, pmd_t *pmds[])
33965+static int preallocate_pxds(struct mm_struct *mm, pxd_t *pxds[])
33966 {
33967 int i;
33968 bool failed = false;
33969
33970- for(i = 0; i < PREALLOCATED_PMDS; i++) {
33971- pmd_t *pmd = (pmd_t *)__get_free_page(PGALLOC_GFP);
33972- if (!pmd)
33973+ for(i = 0; i < PREALLOCATED_PXDS; i++) {
33974+ pxd_t *pxd = (pxd_t *)__get_free_page(PGALLOC_GFP);
33975+ if (!pxd)
33976 failed = true;
33977- if (pmd && !pgtable_pmd_page_ctor(virt_to_page(pmd))) {
33978- free_page((unsigned long)pmd);
33979- pmd = NULL;
33980+ if (pxd && !pgtable_pxd_page_ctor(virt_to_page(pxd))) {
33981+ free_page((unsigned long)pxd);
33982+ pxd = NULL;
33983 failed = true;
33984 }
33985- if (pmd)
33986- mm_inc_nr_pmds(mm);
33987- pmds[i] = pmd;
33988+ if (pxd)
33989+ mm_inc_nr_pxds(mm);
33990+ pxds[i] = pxd;
33991 }
33992
33993 if (failed) {
33994- free_pmds(mm, pmds);
33995+ free_pxds(mm, pxds);
33996 return -ENOMEM;
33997 }
33998
33999@@ -235,50 +303,54 @@ static int preallocate_pmds(struct mm_struct *mm, pmd_t *pmds[])
34000 * preallocate which never got a corresponding vma will need to be
34001 * freed manually.
34002 */
34003-static void pgd_mop_up_pmds(struct mm_struct *mm, pgd_t *pgdp)
34004+static void pgd_mop_up_pxds(struct mm_struct *mm, pgd_t *pgdp)
34005 {
34006 int i;
34007
34008- for(i = 0; i < PREALLOCATED_PMDS; i++) {
34009+ for(i = 0; i < PREALLOCATED_PXDS; i++) {
34010 pgd_t pgd = pgdp[i];
34011
34012 if (pgd_val(pgd) != 0) {
34013- pmd_t *pmd = (pmd_t *)pgd_page_vaddr(pgd);
34014+ pxd_t *pxd = (pxd_t *)pgd_page_vaddr(pgd);
34015
34016- pgdp[i] = native_make_pgd(0);
34017+ set_pgd(pgdp + i, native_make_pgd(0));
34018
34019- paravirt_release_pmd(pgd_val(pgd) >> PAGE_SHIFT);
34020- pmd_free(mm, pmd);
34021- mm_dec_nr_pmds(mm);
34022+ paravirt_release_pxd(pgd_val(pgd) >> PAGE_SHIFT);
34023+ pxd_free(mm, pxd);
34024+ mm_dec_nr_pxds(mm);
34025 }
34026 }
34027 }
34028
34029-static void pgd_prepopulate_pmd(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmds[])
34030+static void pgd_prepopulate_pxd(struct mm_struct *mm, pgd_t *pgd, pxd_t *pxds[])
34031 {
34032- pud_t *pud;
34033+ pyd_t *pyd;
34034 int i;
34035
34036- if (PREALLOCATED_PMDS == 0) /* Work around gcc-3.4.x bug */
34037+ if (PREALLOCATED_PXDS == 0) /* Work around gcc-3.4.x bug */
34038 return;
34039
34040- pud = pud_offset(pgd, 0);
34041+#ifdef CONFIG_X86_64
34042+ pyd = pyd_offset(mm, 0L);
34043+#else
34044+ pyd = pyd_offset(pgd, 0L);
34045+#endif
34046
34047- for (i = 0; i < PREALLOCATED_PMDS; i++, pud++) {
34048- pmd_t *pmd = pmds[i];
34049+ for (i = 0; i < PREALLOCATED_PXDS; i++, pyd++) {
34050+ pxd_t *pxd = pxds[i];
34051
34052 if (i >= KERNEL_PGD_BOUNDARY)
34053- memcpy(pmd, (pmd_t *)pgd_page_vaddr(swapper_pg_dir[i]),
34054- sizeof(pmd_t) * PTRS_PER_PMD);
34055+ memcpy(pxd, (pxd_t *)pgd_page_vaddr(swapper_pg_dir[i]),
34056+ sizeof(pxd_t) * PTRS_PER_PMD);
34057
34058- pud_populate(mm, pud, pmd);
34059+ pyd_populate(mm, pyd, pxd);
34060 }
34061 }
34062
34063 pgd_t *pgd_alloc(struct mm_struct *mm)
34064 {
34065 pgd_t *pgd;
34066- pmd_t *pmds[PREALLOCATED_PMDS];
34067+ pxd_t *pxds[PREALLOCATED_PXDS];
34068
34069 pgd = (pgd_t *)__get_free_page(PGALLOC_GFP);
34070
34071@@ -287,11 +359,11 @@ pgd_t *pgd_alloc(struct mm_struct *mm)
34072
34073 mm->pgd = pgd;
34074
34075- if (preallocate_pmds(mm, pmds) != 0)
34076+ if (preallocate_pxds(mm, pxds) != 0)
34077 goto out_free_pgd;
34078
34079 if (paravirt_pgd_alloc(mm) != 0)
34080- goto out_free_pmds;
34081+ goto out_free_pxds;
34082
34083 /*
34084 * Make sure that pre-populating the pmds is atomic with
34085@@ -301,14 +373,14 @@ pgd_t *pgd_alloc(struct mm_struct *mm)
34086 spin_lock(&pgd_lock);
34087
34088 pgd_ctor(mm, pgd);
34089- pgd_prepopulate_pmd(mm, pgd, pmds);
34090+ pgd_prepopulate_pxd(mm, pgd, pxds);
34091
34092 spin_unlock(&pgd_lock);
34093
34094 return pgd;
34095
34096-out_free_pmds:
34097- free_pmds(mm, pmds);
34098+out_free_pxds:
34099+ free_pxds(mm, pxds);
34100 out_free_pgd:
34101 free_page((unsigned long)pgd);
34102 out:
34103@@ -317,7 +389,7 @@ out:
34104
34105 void pgd_free(struct mm_struct *mm, pgd_t *pgd)
34106 {
34107- pgd_mop_up_pmds(mm, pgd);
34108+ pgd_mop_up_pxds(mm, pgd);
34109 pgd_dtor(pgd);
34110 paravirt_pgd_free(mm, pgd);
34111 free_page((unsigned long)pgd);
34112diff --git a/arch/x86/mm/pgtable_32.c b/arch/x86/mm/pgtable_32.c
34113index 75cc097..79a097f 100644
34114--- a/arch/x86/mm/pgtable_32.c
34115+++ b/arch/x86/mm/pgtable_32.c
34116@@ -47,10 +47,13 @@ void set_pte_vaddr(unsigned long vaddr, pte_t pteval)
34117 return;
34118 }
34119 pte = pte_offset_kernel(pmd, vaddr);
34120+
34121+ pax_open_kernel();
34122 if (pte_val(pteval))
34123 set_pte_at(&init_mm, vaddr, pte, pteval);
34124 else
34125 pte_clear(&init_mm, vaddr, pte);
34126+ pax_close_kernel();
34127
34128 /*
34129 * It's enough to flush this one mapping.
34130diff --git a/arch/x86/mm/physaddr.c b/arch/x86/mm/physaddr.c
34131index e666cbb..61788c45 100644
34132--- a/arch/x86/mm/physaddr.c
34133+++ b/arch/x86/mm/physaddr.c
34134@@ -10,7 +10,7 @@
34135 #ifdef CONFIG_X86_64
34136
34137 #ifdef CONFIG_DEBUG_VIRTUAL
34138-unsigned long __phys_addr(unsigned long x)
34139+unsigned long __intentional_overflow(-1) __phys_addr(unsigned long x)
34140 {
34141 unsigned long y = x - __START_KERNEL_map;
34142
34143@@ -67,7 +67,7 @@ EXPORT_SYMBOL(__virt_addr_valid);
34144 #else
34145
34146 #ifdef CONFIG_DEBUG_VIRTUAL
34147-unsigned long __phys_addr(unsigned long x)
34148+unsigned long __intentional_overflow(-1) __phys_addr(unsigned long x)
34149 {
34150 unsigned long phys_addr = x - PAGE_OFFSET;
34151 /* VMALLOC_* aren't constants */
34152diff --git a/arch/x86/mm/setup_nx.c b/arch/x86/mm/setup_nx.c
34153index 90555bf..f5f1828 100644
34154--- a/arch/x86/mm/setup_nx.c
34155+++ b/arch/x86/mm/setup_nx.c
34156@@ -5,8 +5,10 @@
34157 #include <asm/pgtable.h>
34158 #include <asm/proto.h>
34159
34160+#if defined(CONFIG_X86_64) || defined(CONFIG_X86_PAE)
34161 static int disable_nx;
34162
34163+#ifndef CONFIG_PAX_PAGEEXEC
34164 /*
34165 * noexec = on|off
34166 *
34167@@ -28,12 +30,17 @@ static int __init noexec_setup(char *str)
34168 return 0;
34169 }
34170 early_param("noexec", noexec_setup);
34171+#endif
34172+
34173+#endif
34174
34175 void x86_configure_nx(void)
34176 {
34177+#if defined(CONFIG_X86_64) || defined(CONFIG_X86_PAE)
34178 if (cpu_has_nx && !disable_nx)
34179 __supported_pte_mask |= _PAGE_NX;
34180 else
34181+#endif
34182 __supported_pte_mask &= ~_PAGE_NX;
34183 }
34184
34185diff --git a/arch/x86/mm/tlb.c b/arch/x86/mm/tlb.c
34186index 3250f23..7a97ba2 100644
34187--- a/arch/x86/mm/tlb.c
34188+++ b/arch/x86/mm/tlb.c
34189@@ -45,7 +45,11 @@ void leave_mm(int cpu)
34190 BUG();
34191 if (cpumask_test_cpu(cpu, mm_cpumask(active_mm))) {
34192 cpumask_clear_cpu(cpu, mm_cpumask(active_mm));
34193+
34194+#ifndef CONFIG_PAX_PER_CPU_PGD
34195 load_cr3(swapper_pg_dir);
34196+#endif
34197+
34198 /*
34199 * This gets called in the idle path where RCU
34200 * functions differently. Tracing normally
34201diff --git a/arch/x86/mm/uderef_64.c b/arch/x86/mm/uderef_64.c
34202new file mode 100644
34203index 0000000..3fda3f3
34204--- /dev/null
34205+++ b/arch/x86/mm/uderef_64.c
34206@@ -0,0 +1,37 @@
34207+#include <linux/mm.h>
34208+#include <asm/pgtable.h>
34209+#include <asm/uaccess.h>
34210+
34211+#ifdef CONFIG_PAX_MEMORY_UDEREF
34212+/* PaX: due to the special call convention these functions must
34213+ * - remain leaf functions under all configurations,
34214+ * - never be called directly, only dereferenced from the wrappers.
34215+ */
34216+void __used __pax_open_userland(void)
34217+{
34218+ unsigned int cpu;
34219+
34220+ if (unlikely(!segment_eq(get_fs(), USER_DS)))
34221+ return;
34222+
34223+ cpu = raw_get_cpu();
34224+ BUG_ON((read_cr3() & ~PAGE_MASK) != PCID_KERNEL);
34225+ write_cr3(__pa_nodebug(get_cpu_pgd(cpu, user)) | PCID_USER | PCID_NOFLUSH);
34226+ raw_put_cpu_no_resched();
34227+}
34228+EXPORT_SYMBOL(__pax_open_userland);
34229+
34230+void __used __pax_close_userland(void)
34231+{
34232+ unsigned int cpu;
34233+
34234+ if (unlikely(!segment_eq(get_fs(), USER_DS)))
34235+ return;
34236+
34237+ cpu = raw_get_cpu();
34238+ BUG_ON((read_cr3() & ~PAGE_MASK) != PCID_USER);
34239+ write_cr3(__pa_nodebug(get_cpu_pgd(cpu, kernel)) | PCID_KERNEL | PCID_NOFLUSH);
34240+ raw_put_cpu_no_resched();
34241+}
34242+EXPORT_SYMBOL(__pax_close_userland);
34243+#endif
34244diff --git a/arch/x86/net/bpf_jit.S b/arch/x86/net/bpf_jit.S
34245index 6440221..f84b5c7 100644
34246--- a/arch/x86/net/bpf_jit.S
34247+++ b/arch/x86/net/bpf_jit.S
34248@@ -9,6 +9,7 @@
34249 */
34250 #include <linux/linkage.h>
34251 #include <asm/dwarf2.h>
34252+#include <asm/alternative-asm.h>
34253
34254 /*
34255 * Calling convention :
34256@@ -38,6 +39,7 @@ sk_load_word_positive_offset:
34257 jle bpf_slow_path_word
34258 mov (SKBDATA,%rsi),%eax
34259 bswap %eax /* ntohl() */
34260+ pax_force_retaddr
34261 ret
34262
34263 sk_load_half:
34264@@ -55,6 +57,7 @@ sk_load_half_positive_offset:
34265 jle bpf_slow_path_half
34266 movzwl (SKBDATA,%rsi),%eax
34267 rol $8,%ax # ntohs()
34268+ pax_force_retaddr
34269 ret
34270
34271 sk_load_byte:
34272@@ -69,6 +72,7 @@ sk_load_byte_positive_offset:
34273 cmp %esi,%r9d /* if (offset >= hlen) goto bpf_slow_path_byte */
34274 jle bpf_slow_path_byte
34275 movzbl (SKBDATA,%rsi),%eax
34276+ pax_force_retaddr
34277 ret
34278
34279 /* rsi contains offset and can be scratched */
34280@@ -90,6 +94,7 @@ bpf_slow_path_word:
34281 js bpf_error
34282 mov - MAX_BPF_STACK + 32(%rbp),%eax
34283 bswap %eax
34284+ pax_force_retaddr
34285 ret
34286
34287 bpf_slow_path_half:
34288@@ -98,12 +103,14 @@ bpf_slow_path_half:
34289 mov - MAX_BPF_STACK + 32(%rbp),%ax
34290 rol $8,%ax
34291 movzwl %ax,%eax
34292+ pax_force_retaddr
34293 ret
34294
34295 bpf_slow_path_byte:
34296 bpf_slow_path_common(1)
34297 js bpf_error
34298 movzbl - MAX_BPF_STACK + 32(%rbp),%eax
34299+ pax_force_retaddr
34300 ret
34301
34302 #define sk_negative_common(SIZE) \
34303@@ -126,6 +133,7 @@ sk_load_word_negative_offset:
34304 sk_negative_common(4)
34305 mov (%rax), %eax
34306 bswap %eax
34307+ pax_force_retaddr
34308 ret
34309
34310 bpf_slow_path_half_neg:
34311@@ -137,6 +145,7 @@ sk_load_half_negative_offset:
34312 mov (%rax),%ax
34313 rol $8,%ax
34314 movzwl %ax,%eax
34315+ pax_force_retaddr
34316 ret
34317
34318 bpf_slow_path_byte_neg:
34319@@ -146,6 +155,7 @@ sk_load_byte_negative_offset:
34320 .globl sk_load_byte_negative_offset
34321 sk_negative_common(1)
34322 movzbl (%rax), %eax
34323+ pax_force_retaddr
34324 ret
34325
34326 bpf_error:
34327@@ -156,4 +166,5 @@ bpf_error:
34328 mov - MAX_BPF_STACK + 16(%rbp),%r14
34329 mov - MAX_BPF_STACK + 24(%rbp),%r15
34330 leaveq
34331+ pax_force_retaddr
34332 ret
34333diff --git a/arch/x86/net/bpf_jit_comp.c b/arch/x86/net/bpf_jit_comp.c
34334index ddeff48..877ead6 100644
34335--- a/arch/x86/net/bpf_jit_comp.c
34336+++ b/arch/x86/net/bpf_jit_comp.c
34337@@ -13,7 +13,11 @@
34338 #include <linux/if_vlan.h>
34339 #include <asm/cacheflush.h>
34340
34341+#ifdef CONFIG_GRKERNSEC_BPF_HARDEN
34342+int bpf_jit_enable __read_only;
34343+#else
34344 int bpf_jit_enable __read_mostly;
34345+#endif
34346
34347 /*
34348 * assembly code in arch/x86/net/bpf_jit.S
34349@@ -174,7 +178,9 @@ static u8 add_2reg(u8 byte, u32 dst_reg, u32 src_reg)
34350 static void jit_fill_hole(void *area, unsigned int size)
34351 {
34352 /* fill whole space with int3 instructions */
34353+ pax_open_kernel();
34354 memset(area, 0xcc, size);
34355+ pax_close_kernel();
34356 }
34357
34358 struct jit_context {
34359@@ -924,7 +930,9 @@ common_load:
34360 pr_err("bpf_jit_compile fatal error\n");
34361 return -EFAULT;
34362 }
34363+ pax_open_kernel();
34364 memcpy(image + proglen, temp, ilen);
34365+ pax_close_kernel();
34366 }
34367 proglen += ilen;
34368 addrs[i] = proglen;
34369@@ -1001,7 +1009,6 @@ void bpf_int_jit_compile(struct bpf_prog *prog)
34370
34371 if (image) {
34372 bpf_flush_icache(header, image + proglen);
34373- set_memory_ro((unsigned long)header, header->pages);
34374 prog->bpf_func = (void *)image;
34375 prog->jited = true;
34376 }
34377@@ -1014,12 +1021,8 @@ void bpf_jit_free(struct bpf_prog *fp)
34378 unsigned long addr = (unsigned long)fp->bpf_func & PAGE_MASK;
34379 struct bpf_binary_header *header = (void *)addr;
34380
34381- if (!fp->jited)
34382- goto free_filter;
34383+ if (fp->jited)
34384+ bpf_jit_binary_free(header);
34385
34386- set_memory_rw(addr, header->pages);
34387- bpf_jit_binary_free(header);
34388-
34389-free_filter:
34390 bpf_prog_unlock_free(fp);
34391 }
34392diff --git a/arch/x86/oprofile/backtrace.c b/arch/x86/oprofile/backtrace.c
34393index 5d04be5..2beeaa2 100644
34394--- a/arch/x86/oprofile/backtrace.c
34395+++ b/arch/x86/oprofile/backtrace.c
34396@@ -46,11 +46,11 @@ dump_user_backtrace_32(struct stack_frame_ia32 *head)
34397 struct stack_frame_ia32 *fp;
34398 unsigned long bytes;
34399
34400- bytes = copy_from_user_nmi(bufhead, head, sizeof(bufhead));
34401+ bytes = copy_from_user_nmi(bufhead, (const char __force_user *)head, sizeof(bufhead));
34402 if (bytes != 0)
34403 return NULL;
34404
34405- fp = (struct stack_frame_ia32 *) compat_ptr(bufhead[0].next_frame);
34406+ fp = (struct stack_frame_ia32 __force_kernel *) compat_ptr(bufhead[0].next_frame);
34407
34408 oprofile_add_trace(bufhead[0].return_address);
34409
34410@@ -92,7 +92,7 @@ static struct stack_frame *dump_user_backtrace(struct stack_frame *head)
34411 struct stack_frame bufhead[2];
34412 unsigned long bytes;
34413
34414- bytes = copy_from_user_nmi(bufhead, head, sizeof(bufhead));
34415+ bytes = copy_from_user_nmi(bufhead, (const char __force_user *)head, sizeof(bufhead));
34416 if (bytes != 0)
34417 return NULL;
34418
34419@@ -111,7 +111,7 @@ x86_backtrace(struct pt_regs * const regs, unsigned int depth)
34420 {
34421 struct stack_frame *head = (struct stack_frame *)frame_pointer(regs);
34422
34423- if (!user_mode_vm(regs)) {
34424+ if (!user_mode(regs)) {
34425 unsigned long stack = kernel_stack_pointer(regs);
34426 if (depth)
34427 dump_trace(NULL, regs, (unsigned long *)stack, 0,
34428diff --git a/arch/x86/oprofile/nmi_int.c b/arch/x86/oprofile/nmi_int.c
34429index 1d2e639..f6ef82a 100644
34430--- a/arch/x86/oprofile/nmi_int.c
34431+++ b/arch/x86/oprofile/nmi_int.c
34432@@ -23,6 +23,7 @@
34433 #include <asm/nmi.h>
34434 #include <asm/msr.h>
34435 #include <asm/apic.h>
34436+#include <asm/pgtable.h>
34437
34438 #include "op_counter.h"
34439 #include "op_x86_model.h"
34440@@ -785,8 +786,11 @@ int __init op_nmi_init(struct oprofile_operations *ops)
34441 if (ret)
34442 return ret;
34443
34444- if (!model->num_virt_counters)
34445- model->num_virt_counters = model->num_counters;
34446+ if (!model->num_virt_counters) {
34447+ pax_open_kernel();
34448+ *(unsigned int *)&model->num_virt_counters = model->num_counters;
34449+ pax_close_kernel();
34450+ }
34451
34452 mux_init(ops);
34453
34454diff --git a/arch/x86/oprofile/op_model_amd.c b/arch/x86/oprofile/op_model_amd.c
34455index 50d86c0..7985318 100644
34456--- a/arch/x86/oprofile/op_model_amd.c
34457+++ b/arch/x86/oprofile/op_model_amd.c
34458@@ -519,9 +519,11 @@ static int op_amd_init(struct oprofile_operations *ops)
34459 num_counters = AMD64_NUM_COUNTERS;
34460 }
34461
34462- op_amd_spec.num_counters = num_counters;
34463- op_amd_spec.num_controls = num_counters;
34464- op_amd_spec.num_virt_counters = max(num_counters, NUM_VIRT_COUNTERS);
34465+ pax_open_kernel();
34466+ *(unsigned int *)&op_amd_spec.num_counters = num_counters;
34467+ *(unsigned int *)&op_amd_spec.num_controls = num_counters;
34468+ *(unsigned int *)&op_amd_spec.num_virt_counters = max(num_counters, NUM_VIRT_COUNTERS);
34469+ pax_close_kernel();
34470
34471 return 0;
34472 }
34473diff --git a/arch/x86/oprofile/op_model_ppro.c b/arch/x86/oprofile/op_model_ppro.c
34474index d90528e..0127e2b 100644
34475--- a/arch/x86/oprofile/op_model_ppro.c
34476+++ b/arch/x86/oprofile/op_model_ppro.c
34477@@ -19,6 +19,7 @@
34478 #include <asm/msr.h>
34479 #include <asm/apic.h>
34480 #include <asm/nmi.h>
34481+#include <asm/pgtable.h>
34482
34483 #include "op_x86_model.h"
34484 #include "op_counter.h"
34485@@ -221,8 +222,10 @@ static void arch_perfmon_setup_counters(void)
34486
34487 num_counters = min((int)eax.split.num_counters, OP_MAX_COUNTER);
34488
34489- op_arch_perfmon_spec.num_counters = num_counters;
34490- op_arch_perfmon_spec.num_controls = num_counters;
34491+ pax_open_kernel();
34492+ *(unsigned int *)&op_arch_perfmon_spec.num_counters = num_counters;
34493+ *(unsigned int *)&op_arch_perfmon_spec.num_controls = num_counters;
34494+ pax_close_kernel();
34495 }
34496
34497 static int arch_perfmon_init(struct oprofile_operations *ignore)
34498diff --git a/arch/x86/oprofile/op_x86_model.h b/arch/x86/oprofile/op_x86_model.h
34499index 71e8a67..6a313bb 100644
34500--- a/arch/x86/oprofile/op_x86_model.h
34501+++ b/arch/x86/oprofile/op_x86_model.h
34502@@ -52,7 +52,7 @@ struct op_x86_model_spec {
34503 void (*switch_ctrl)(struct op_x86_model_spec const *model,
34504 struct op_msrs const * const msrs);
34505 #endif
34506-};
34507+} __do_const;
34508
34509 struct op_counter_config;
34510
34511diff --git a/arch/x86/pci/intel_mid_pci.c b/arch/x86/pci/intel_mid_pci.c
34512index 852aa4c..71613f2 100644
34513--- a/arch/x86/pci/intel_mid_pci.c
34514+++ b/arch/x86/pci/intel_mid_pci.c
34515@@ -258,7 +258,7 @@ int __init intel_mid_pci_init(void)
34516 pci_mmcfg_late_init();
34517 pcibios_enable_irq = intel_mid_pci_irq_enable;
34518 pcibios_disable_irq = intel_mid_pci_irq_disable;
34519- pci_root_ops = intel_mid_pci_ops;
34520+ memcpy((void *)&pci_root_ops, &intel_mid_pci_ops, sizeof pci_root_ops);
34521 pci_soc_mode = 1;
34522 /* Continue with standard init */
34523 return 1;
34524diff --git a/arch/x86/pci/irq.c b/arch/x86/pci/irq.c
34525index 5dc6ca5..25c03f5 100644
34526--- a/arch/x86/pci/irq.c
34527+++ b/arch/x86/pci/irq.c
34528@@ -51,7 +51,7 @@ struct irq_router {
34529 struct irq_router_handler {
34530 u16 vendor;
34531 int (*probe)(struct irq_router *r, struct pci_dev *router, u16 device);
34532-};
34533+} __do_const;
34534
34535 int (*pcibios_enable_irq)(struct pci_dev *dev) = pirq_enable_irq;
34536 void (*pcibios_disable_irq)(struct pci_dev *dev) = pirq_disable_irq;
34537@@ -791,7 +791,7 @@ static __init int pico_router_probe(struct irq_router *r, struct pci_dev *router
34538 return 0;
34539 }
34540
34541-static __initdata struct irq_router_handler pirq_routers[] = {
34542+static __initconst const struct irq_router_handler pirq_routers[] = {
34543 { PCI_VENDOR_ID_INTEL, intel_router_probe },
34544 { PCI_VENDOR_ID_AL, ali_router_probe },
34545 { PCI_VENDOR_ID_ITE, ite_router_probe },
34546@@ -818,7 +818,7 @@ static struct pci_dev *pirq_router_dev;
34547 static void __init pirq_find_router(struct irq_router *r)
34548 {
34549 struct irq_routing_table *rt = pirq_table;
34550- struct irq_router_handler *h;
34551+ const struct irq_router_handler *h;
34552
34553 #ifdef CONFIG_PCI_BIOS
34554 if (!rt->signature) {
34555@@ -1091,7 +1091,7 @@ static int __init fix_acer_tm360_irqrouting(const struct dmi_system_id *d)
34556 return 0;
34557 }
34558
34559-static struct dmi_system_id __initdata pciirq_dmi_table[] = {
34560+static const struct dmi_system_id __initconst pciirq_dmi_table[] = {
34561 {
34562 .callback = fix_broken_hp_bios_irq9,
34563 .ident = "HP Pavilion N5400 Series Laptop",
34564diff --git a/arch/x86/pci/pcbios.c b/arch/x86/pci/pcbios.c
34565index 9b83b90..4112152 100644
34566--- a/arch/x86/pci/pcbios.c
34567+++ b/arch/x86/pci/pcbios.c
34568@@ -79,7 +79,7 @@ union bios32 {
34569 static struct {
34570 unsigned long address;
34571 unsigned short segment;
34572-} bios32_indirect __initdata = { 0, __KERNEL_CS };
34573+} bios32_indirect __initconst = { 0, __PCIBIOS_CS };
34574
34575 /*
34576 * Returns the entry point for the given service, NULL on error
34577@@ -92,37 +92,80 @@ static unsigned long __init bios32_service(unsigned long service)
34578 unsigned long length; /* %ecx */
34579 unsigned long entry; /* %edx */
34580 unsigned long flags;
34581+ struct desc_struct d, *gdt;
34582
34583 local_irq_save(flags);
34584- __asm__("lcall *(%%edi); cld"
34585+
34586+ gdt = get_cpu_gdt_table(smp_processor_id());
34587+
34588+ pack_descriptor(&d, 0UL, 0xFFFFFUL, 0x9B, 0xC);
34589+ write_gdt_entry(gdt, GDT_ENTRY_PCIBIOS_CS, &d, DESCTYPE_S);
34590+ pack_descriptor(&d, 0UL, 0xFFFFFUL, 0x93, 0xC);
34591+ write_gdt_entry(gdt, GDT_ENTRY_PCIBIOS_DS, &d, DESCTYPE_S);
34592+
34593+ __asm__("movw %w7, %%ds; lcall *(%%edi); push %%ss; pop %%ds; cld"
34594 : "=a" (return_code),
34595 "=b" (address),
34596 "=c" (length),
34597 "=d" (entry)
34598 : "0" (service),
34599 "1" (0),
34600- "D" (&bios32_indirect));
34601+ "D" (&bios32_indirect),
34602+ "r"(__PCIBIOS_DS)
34603+ : "memory");
34604+
34605+ pax_open_kernel();
34606+ gdt[GDT_ENTRY_PCIBIOS_CS].a = 0;
34607+ gdt[GDT_ENTRY_PCIBIOS_CS].b = 0;
34608+ gdt[GDT_ENTRY_PCIBIOS_DS].a = 0;
34609+ gdt[GDT_ENTRY_PCIBIOS_DS].b = 0;
34610+ pax_close_kernel();
34611+
34612 local_irq_restore(flags);
34613
34614 switch (return_code) {
34615- case 0:
34616- return address + entry;
34617- case 0x80: /* Not present */
34618- printk(KERN_WARNING "bios32_service(0x%lx): not present\n", service);
34619- return 0;
34620- default: /* Shouldn't happen */
34621- printk(KERN_WARNING "bios32_service(0x%lx): returned 0x%x -- BIOS bug!\n",
34622- service, return_code);
34623+ case 0: {
34624+ int cpu;
34625+ unsigned char flags;
34626+
34627+ printk(KERN_INFO "bios32_service: base:%08lx length:%08lx entry:%08lx\n", address, length, entry);
34628+ if (address >= 0xFFFF0 || length > 0x100000 - address || length <= entry) {
34629+ printk(KERN_WARNING "bios32_service: not valid\n");
34630 return 0;
34631+ }
34632+ address = address + PAGE_OFFSET;
34633+ length += 16UL; /* some BIOSs underreport this... */
34634+ flags = 4;
34635+ if (length >= 64*1024*1024) {
34636+ length >>= PAGE_SHIFT;
34637+ flags |= 8;
34638+ }
34639+
34640+ for (cpu = 0; cpu < nr_cpu_ids; cpu++) {
34641+ gdt = get_cpu_gdt_table(cpu);
34642+ pack_descriptor(&d, address, length, 0x9b, flags);
34643+ write_gdt_entry(gdt, GDT_ENTRY_PCIBIOS_CS, &d, DESCTYPE_S);
34644+ pack_descriptor(&d, address, length, 0x93, flags);
34645+ write_gdt_entry(gdt, GDT_ENTRY_PCIBIOS_DS, &d, DESCTYPE_S);
34646+ }
34647+ return entry;
34648+ }
34649+ case 0x80: /* Not present */
34650+ printk(KERN_WARNING "bios32_service(0x%lx): not present\n", service);
34651+ return 0;
34652+ default: /* Shouldn't happen */
34653+ printk(KERN_WARNING "bios32_service(0x%lx): returned 0x%x -- BIOS bug!\n",
34654+ service, return_code);
34655+ return 0;
34656 }
34657 }
34658
34659 static struct {
34660 unsigned long address;
34661 unsigned short segment;
34662-} pci_indirect = { 0, __KERNEL_CS };
34663+} pci_indirect __read_only = { 0, __PCIBIOS_CS };
34664
34665-static int pci_bios_present;
34666+static int pci_bios_present __read_only;
34667
34668 static int __init check_pcibios(void)
34669 {
34670@@ -131,11 +174,13 @@ static int __init check_pcibios(void)
34671 unsigned long flags, pcibios_entry;
34672
34673 if ((pcibios_entry = bios32_service(PCI_SERVICE))) {
34674- pci_indirect.address = pcibios_entry + PAGE_OFFSET;
34675+ pci_indirect.address = pcibios_entry;
34676
34677 local_irq_save(flags);
34678- __asm__(
34679- "lcall *(%%edi); cld\n\t"
34680+ __asm__("movw %w6, %%ds\n\t"
34681+ "lcall *%%ss:(%%edi); cld\n\t"
34682+ "push %%ss\n\t"
34683+ "pop %%ds\n\t"
34684 "jc 1f\n\t"
34685 "xor %%ah, %%ah\n"
34686 "1:"
34687@@ -144,7 +189,8 @@ static int __init check_pcibios(void)
34688 "=b" (ebx),
34689 "=c" (ecx)
34690 : "1" (PCIBIOS_PCI_BIOS_PRESENT),
34691- "D" (&pci_indirect)
34692+ "D" (&pci_indirect),
34693+ "r" (__PCIBIOS_DS)
34694 : "memory");
34695 local_irq_restore(flags);
34696
34697@@ -189,7 +235,10 @@ static int pci_bios_read(unsigned int seg, unsigned int bus,
34698
34699 switch (len) {
34700 case 1:
34701- __asm__("lcall *(%%esi); cld\n\t"
34702+ __asm__("movw %w6, %%ds\n\t"
34703+ "lcall *%%ss:(%%esi); cld\n\t"
34704+ "push %%ss\n\t"
34705+ "pop %%ds\n\t"
34706 "jc 1f\n\t"
34707 "xor %%ah, %%ah\n"
34708 "1:"
34709@@ -198,7 +247,8 @@ static int pci_bios_read(unsigned int seg, unsigned int bus,
34710 : "1" (PCIBIOS_READ_CONFIG_BYTE),
34711 "b" (bx),
34712 "D" ((long)reg),
34713- "S" (&pci_indirect));
34714+ "S" (&pci_indirect),
34715+ "r" (__PCIBIOS_DS));
34716 /*
34717 * Zero-extend the result beyond 8 bits, do not trust the
34718 * BIOS having done it:
34719@@ -206,7 +256,10 @@ static int pci_bios_read(unsigned int seg, unsigned int bus,
34720 *value &= 0xff;
34721 break;
34722 case 2:
34723- __asm__("lcall *(%%esi); cld\n\t"
34724+ __asm__("movw %w6, %%ds\n\t"
34725+ "lcall *%%ss:(%%esi); cld\n\t"
34726+ "push %%ss\n\t"
34727+ "pop %%ds\n\t"
34728 "jc 1f\n\t"
34729 "xor %%ah, %%ah\n"
34730 "1:"
34731@@ -215,7 +268,8 @@ static int pci_bios_read(unsigned int seg, unsigned int bus,
34732 : "1" (PCIBIOS_READ_CONFIG_WORD),
34733 "b" (bx),
34734 "D" ((long)reg),
34735- "S" (&pci_indirect));
34736+ "S" (&pci_indirect),
34737+ "r" (__PCIBIOS_DS));
34738 /*
34739 * Zero-extend the result beyond 16 bits, do not trust the
34740 * BIOS having done it:
34741@@ -223,7 +277,10 @@ static int pci_bios_read(unsigned int seg, unsigned int bus,
34742 *value &= 0xffff;
34743 break;
34744 case 4:
34745- __asm__("lcall *(%%esi); cld\n\t"
34746+ __asm__("movw %w6, %%ds\n\t"
34747+ "lcall *%%ss:(%%esi); cld\n\t"
34748+ "push %%ss\n\t"
34749+ "pop %%ds\n\t"
34750 "jc 1f\n\t"
34751 "xor %%ah, %%ah\n"
34752 "1:"
34753@@ -232,7 +289,8 @@ static int pci_bios_read(unsigned int seg, unsigned int bus,
34754 : "1" (PCIBIOS_READ_CONFIG_DWORD),
34755 "b" (bx),
34756 "D" ((long)reg),
34757- "S" (&pci_indirect));
34758+ "S" (&pci_indirect),
34759+ "r" (__PCIBIOS_DS));
34760 break;
34761 }
34762
34763@@ -256,7 +314,10 @@ static int pci_bios_write(unsigned int seg, unsigned int bus,
34764
34765 switch (len) {
34766 case 1:
34767- __asm__("lcall *(%%esi); cld\n\t"
34768+ __asm__("movw %w6, %%ds\n\t"
34769+ "lcall *%%ss:(%%esi); cld\n\t"
34770+ "push %%ss\n\t"
34771+ "pop %%ds\n\t"
34772 "jc 1f\n\t"
34773 "xor %%ah, %%ah\n"
34774 "1:"
34775@@ -265,10 +326,14 @@ static int pci_bios_write(unsigned int seg, unsigned int bus,
34776 "c" (value),
34777 "b" (bx),
34778 "D" ((long)reg),
34779- "S" (&pci_indirect));
34780+ "S" (&pci_indirect),
34781+ "r" (__PCIBIOS_DS));
34782 break;
34783 case 2:
34784- __asm__("lcall *(%%esi); cld\n\t"
34785+ __asm__("movw %w6, %%ds\n\t"
34786+ "lcall *%%ss:(%%esi); cld\n\t"
34787+ "push %%ss\n\t"
34788+ "pop %%ds\n\t"
34789 "jc 1f\n\t"
34790 "xor %%ah, %%ah\n"
34791 "1:"
34792@@ -277,10 +342,14 @@ static int pci_bios_write(unsigned int seg, unsigned int bus,
34793 "c" (value),
34794 "b" (bx),
34795 "D" ((long)reg),
34796- "S" (&pci_indirect));
34797+ "S" (&pci_indirect),
34798+ "r" (__PCIBIOS_DS));
34799 break;
34800 case 4:
34801- __asm__("lcall *(%%esi); cld\n\t"
34802+ __asm__("movw %w6, %%ds\n\t"
34803+ "lcall *%%ss:(%%esi); cld\n\t"
34804+ "push %%ss\n\t"
34805+ "pop %%ds\n\t"
34806 "jc 1f\n\t"
34807 "xor %%ah, %%ah\n"
34808 "1:"
34809@@ -289,7 +358,8 @@ static int pci_bios_write(unsigned int seg, unsigned int bus,
34810 "c" (value),
34811 "b" (bx),
34812 "D" ((long)reg),
34813- "S" (&pci_indirect));
34814+ "S" (&pci_indirect),
34815+ "r" (__PCIBIOS_DS));
34816 break;
34817 }
34818
34819@@ -394,10 +464,13 @@ struct irq_routing_table * pcibios_get_irq_routing_table(void)
34820
34821 DBG("PCI: Fetching IRQ routing table... ");
34822 __asm__("push %%es\n\t"
34823+ "movw %w8, %%ds\n\t"
34824 "push %%ds\n\t"
34825 "pop %%es\n\t"
34826- "lcall *(%%esi); cld\n\t"
34827+ "lcall *%%ss:(%%esi); cld\n\t"
34828 "pop %%es\n\t"
34829+ "push %%ss\n\t"
34830+ "pop %%ds\n"
34831 "jc 1f\n\t"
34832 "xor %%ah, %%ah\n"
34833 "1:"
34834@@ -408,7 +481,8 @@ struct irq_routing_table * pcibios_get_irq_routing_table(void)
34835 "1" (0),
34836 "D" ((long) &opt),
34837 "S" (&pci_indirect),
34838- "m" (opt)
34839+ "m" (opt),
34840+ "r" (__PCIBIOS_DS)
34841 : "memory");
34842 DBG("OK ret=%d, size=%d, map=%x\n", ret, opt.size, map);
34843 if (ret & 0xff00)
34844@@ -432,7 +506,10 @@ int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq)
34845 {
34846 int ret;
34847
34848- __asm__("lcall *(%%esi); cld\n\t"
34849+ __asm__("movw %w5, %%ds\n\t"
34850+ "lcall *%%ss:(%%esi); cld\n\t"
34851+ "push %%ss\n\t"
34852+ "pop %%ds\n"
34853 "jc 1f\n\t"
34854 "xor %%ah, %%ah\n"
34855 "1:"
34856@@ -440,7 +517,8 @@ int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq)
34857 : "0" (PCIBIOS_SET_PCI_HW_INT),
34858 "b" ((dev->bus->number << 8) | dev->devfn),
34859 "c" ((irq << 8) | (pin + 10)),
34860- "S" (&pci_indirect));
34861+ "S" (&pci_indirect),
34862+ "r" (__PCIBIOS_DS));
34863 return !(ret & 0xff00);
34864 }
34865 EXPORT_SYMBOL(pcibios_set_irq_routing);
34866diff --git a/arch/x86/platform/efi/efi_32.c b/arch/x86/platform/efi/efi_32.c
34867index 40e7cda..c7e6672 100644
34868--- a/arch/x86/platform/efi/efi_32.c
34869+++ b/arch/x86/platform/efi/efi_32.c
34870@@ -61,11 +61,22 @@ void __init efi_call_phys_prolog(void)
34871 {
34872 struct desc_ptr gdt_descr;
34873
34874+#ifdef CONFIG_PAX_KERNEXEC
34875+ struct desc_struct d;
34876+#endif
34877+
34878 local_irq_save(efi_rt_eflags);
34879
34880 load_cr3(initial_page_table);
34881 __flush_tlb_all();
34882
34883+#ifdef CONFIG_PAX_KERNEXEC
34884+ pack_descriptor(&d, 0, 0xFFFFF, 0x9B, 0xC);
34885+ write_gdt_entry(get_cpu_gdt_table(0), GDT_ENTRY_KERNEXEC_EFI_CS, &d, DESCTYPE_S);
34886+ pack_descriptor(&d, 0, 0xFFFFF, 0x93, 0xC);
34887+ write_gdt_entry(get_cpu_gdt_table(0), GDT_ENTRY_KERNEXEC_EFI_DS, &d, DESCTYPE_S);
34888+#endif
34889+
34890 gdt_descr.address = __pa(get_cpu_gdt_table(0));
34891 gdt_descr.size = GDT_SIZE - 1;
34892 load_gdt(&gdt_descr);
34893@@ -75,11 +86,24 @@ void __init efi_call_phys_epilog(void)
34894 {
34895 struct desc_ptr gdt_descr;
34896
34897+#ifdef CONFIG_PAX_KERNEXEC
34898+ struct desc_struct d;
34899+
34900+ memset(&d, 0, sizeof d);
34901+ write_gdt_entry(get_cpu_gdt_table(0), GDT_ENTRY_KERNEXEC_EFI_CS, &d, DESCTYPE_S);
34902+ write_gdt_entry(get_cpu_gdt_table(0), GDT_ENTRY_KERNEXEC_EFI_DS, &d, DESCTYPE_S);
34903+#endif
34904+
34905 gdt_descr.address = (unsigned long)get_cpu_gdt_table(0);
34906 gdt_descr.size = GDT_SIZE - 1;
34907 load_gdt(&gdt_descr);
34908
34909+#ifdef CONFIG_PAX_PER_CPU_PGD
34910+ load_cr3(get_cpu_pgd(smp_processor_id(), kernel));
34911+#else
34912 load_cr3(swapper_pg_dir);
34913+#endif
34914+
34915 __flush_tlb_all();
34916
34917 local_irq_restore(efi_rt_eflags);
34918diff --git a/arch/x86/platform/efi/efi_64.c b/arch/x86/platform/efi/efi_64.c
34919index 17e80d8..9fa6e41 100644
34920--- a/arch/x86/platform/efi/efi_64.c
34921+++ b/arch/x86/platform/efi/efi_64.c
34922@@ -98,6 +98,11 @@ void __init efi_call_phys_prolog(void)
34923 vaddress = (unsigned long)__va(pgd * PGDIR_SIZE);
34924 set_pgd(pgd_offset_k(pgd * PGDIR_SIZE), *pgd_offset_k(vaddress));
34925 }
34926+
34927+#ifdef CONFIG_PAX_PER_CPU_PGD
34928+ load_cr3(swapper_pg_dir);
34929+#endif
34930+
34931 __flush_tlb_all();
34932 }
34933
34934@@ -115,6 +120,11 @@ void __init efi_call_phys_epilog(void)
34935 for (pgd = 0; pgd < n_pgds; pgd++)
34936 set_pgd(pgd_offset_k(pgd * PGDIR_SIZE), save_pgd[pgd]);
34937 kfree(save_pgd);
34938+
34939+#ifdef CONFIG_PAX_PER_CPU_PGD
34940+ load_cr3(get_cpu_pgd(smp_processor_id(), kernel));
34941+#endif
34942+
34943 __flush_tlb_all();
34944 local_irq_restore(efi_flags);
34945 early_code_mapping_set_exec(0);
34946@@ -145,8 +155,23 @@ int __init efi_setup_page_tables(unsigned long pa_memmap, unsigned num_pages)
34947 unsigned npages;
34948 pgd_t *pgd;
34949
34950- if (efi_enabled(EFI_OLD_MEMMAP))
34951+ if (efi_enabled(EFI_OLD_MEMMAP)) {
34952+ /* PaX: We need to disable the NX bit in the PGD, otherwise we won't be
34953+ * able to execute the EFI services.
34954+ */
34955+ if (__supported_pte_mask & _PAGE_NX) {
34956+ unsigned long addr = (unsigned long) __va(0);
34957+ pgd_t pe = __pgd(pgd_val(*pgd_offset_k(addr)) & ~_PAGE_NX);
34958+
34959+ pr_alert("PAX: Disabling NX protection for low memory map. Try booting without \"efi=old_map\"\n");
34960+#ifdef CONFIG_PAX_PER_CPU_PGD
34961+ set_pgd(pgd_offset_cpu(0, kernel, addr), pe);
34962+#endif
34963+ set_pgd(pgd_offset_k(addr), pe);
34964+ }
34965+
34966 return 0;
34967+ }
34968
34969 efi_scratch.efi_pgt = (pgd_t *)(unsigned long)real_mode_header->trampoline_pgd;
34970 pgd = __va(efi_scratch.efi_pgt);
34971diff --git a/arch/x86/platform/efi/efi_stub_32.S b/arch/x86/platform/efi/efi_stub_32.S
34972index 040192b..7d3300f 100644
34973--- a/arch/x86/platform/efi/efi_stub_32.S
34974+++ b/arch/x86/platform/efi/efi_stub_32.S
34975@@ -6,7 +6,9 @@
34976 */
34977
34978 #include <linux/linkage.h>
34979+#include <linux/init.h>
34980 #include <asm/page_types.h>
34981+#include <asm/segment.h>
34982
34983 /*
34984 * efi_call_phys(void *, ...) is a function with variable parameters.
34985@@ -20,7 +22,7 @@
34986 * service functions will comply with gcc calling convention, too.
34987 */
34988
34989-.text
34990+__INIT
34991 ENTRY(efi_call_phys)
34992 /*
34993 * 0. The function can only be called in Linux kernel. So CS has been
34994@@ -36,10 +38,24 @@ ENTRY(efi_call_phys)
34995 * The mapping of lower virtual memory has been created in prolog and
34996 * epilog.
34997 */
34998- movl $1f, %edx
34999- subl $__PAGE_OFFSET, %edx
35000- jmp *%edx
35001+#ifdef CONFIG_PAX_KERNEXEC
35002+ movl $(__KERNEXEC_EFI_DS), %edx
35003+ mov %edx, %ds
35004+ mov %edx, %es
35005+ mov %edx, %ss
35006+ addl $2f,(1f)
35007+ ljmp *(1f)
35008+
35009+__INITDATA
35010+1: .long __LOAD_PHYSICAL_ADDR, __KERNEXEC_EFI_CS
35011+.previous
35012+
35013+2:
35014+ subl $2b,(1b)
35015+#else
35016+ jmp 1f-__PAGE_OFFSET
35017 1:
35018+#endif
35019
35020 /*
35021 * 2. Now on the top of stack is the return
35022@@ -47,14 +63,8 @@ ENTRY(efi_call_phys)
35023 * parameter 2, ..., param n. To make things easy, we save the return
35024 * address of efi_call_phys in a global variable.
35025 */
35026- popl %edx
35027- movl %edx, saved_return_addr
35028- /* get the function pointer into ECX*/
35029- popl %ecx
35030- movl %ecx, efi_rt_function_ptr
35031- movl $2f, %edx
35032- subl $__PAGE_OFFSET, %edx
35033- pushl %edx
35034+ popl (saved_return_addr)
35035+ popl (efi_rt_function_ptr)
35036
35037 /*
35038 * 3. Clear PG bit in %CR0.
35039@@ -73,9 +83,8 @@ ENTRY(efi_call_phys)
35040 /*
35041 * 5. Call the physical function.
35042 */
35043- jmp *%ecx
35044+ call *(efi_rt_function_ptr-__PAGE_OFFSET)
35045
35046-2:
35047 /*
35048 * 6. After EFI runtime service returns, control will return to
35049 * following instruction. We'd better readjust stack pointer first.
35050@@ -88,35 +97,36 @@ ENTRY(efi_call_phys)
35051 movl %cr0, %edx
35052 orl $0x80000000, %edx
35053 movl %edx, %cr0
35054- jmp 1f
35055-1:
35056+
35057 /*
35058 * 8. Now restore the virtual mode from flat mode by
35059 * adding EIP with PAGE_OFFSET.
35060 */
35061- movl $1f, %edx
35062- jmp *%edx
35063+#ifdef CONFIG_PAX_KERNEXEC
35064+ movl $(__KERNEL_DS), %edx
35065+ mov %edx, %ds
35066+ mov %edx, %es
35067+ mov %edx, %ss
35068+ ljmp $(__KERNEL_CS),$1f
35069+#else
35070+ jmp 1f+__PAGE_OFFSET
35071+#endif
35072 1:
35073
35074 /*
35075 * 9. Balance the stack. And because EAX contain the return value,
35076 * we'd better not clobber it.
35077 */
35078- leal efi_rt_function_ptr, %edx
35079- movl (%edx), %ecx
35080- pushl %ecx
35081+ pushl (efi_rt_function_ptr)
35082
35083 /*
35084- * 10. Push the saved return address onto the stack and return.
35085+ * 10. Return to the saved return address.
35086 */
35087- leal saved_return_addr, %edx
35088- movl (%edx), %ecx
35089- pushl %ecx
35090- ret
35091+ jmpl *(saved_return_addr)
35092 ENDPROC(efi_call_phys)
35093 .previous
35094
35095-.data
35096+__INITDATA
35097 saved_return_addr:
35098 .long 0
35099 efi_rt_function_ptr:
35100diff --git a/arch/x86/platform/efi/efi_stub_64.S b/arch/x86/platform/efi/efi_stub_64.S
35101index 86d0f9e..6d499f4 100644
35102--- a/arch/x86/platform/efi/efi_stub_64.S
35103+++ b/arch/x86/platform/efi/efi_stub_64.S
35104@@ -11,6 +11,7 @@
35105 #include <asm/msr.h>
35106 #include <asm/processor-flags.h>
35107 #include <asm/page_types.h>
35108+#include <asm/alternative-asm.h>
35109
35110 #define SAVE_XMM \
35111 mov %rsp, %rax; \
35112@@ -88,6 +89,7 @@ ENTRY(efi_call)
35113 RESTORE_PGT
35114 addq $48, %rsp
35115 RESTORE_XMM
35116+ pax_force_retaddr 0, 1
35117 ret
35118 ENDPROC(efi_call)
35119
35120diff --git a/arch/x86/platform/intel-mid/intel-mid.c b/arch/x86/platform/intel-mid/intel-mid.c
35121index 3005f0c..d06aeb0 100644
35122--- a/arch/x86/platform/intel-mid/intel-mid.c
35123+++ b/arch/x86/platform/intel-mid/intel-mid.c
35124@@ -63,7 +63,7 @@ enum intel_mid_timer_options intel_mid_timer_options;
35125 /* intel_mid_ops to store sub arch ops */
35126 struct intel_mid_ops *intel_mid_ops;
35127 /* getter function for sub arch ops*/
35128-static void *(*get_intel_mid_ops[])(void) = INTEL_MID_OPS_INIT;
35129+static const void *(*get_intel_mid_ops[])(void) = INTEL_MID_OPS_INIT;
35130 enum intel_mid_cpu_type __intel_mid_cpu_chip;
35131 EXPORT_SYMBOL_GPL(__intel_mid_cpu_chip);
35132
35133@@ -71,9 +71,10 @@ static void intel_mid_power_off(void)
35134 {
35135 };
35136
35137-static void intel_mid_reboot(void)
35138+static void __noreturn intel_mid_reboot(void)
35139 {
35140 intel_scu_ipc_simple_command(IPCMSG_COLD_BOOT, 0);
35141+ BUG();
35142 }
35143
35144 static unsigned long __init intel_mid_calibrate_tsc(void)
35145diff --git a/arch/x86/platform/intel-mid/intel_mid_weak_decls.h b/arch/x86/platform/intel-mid/intel_mid_weak_decls.h
35146index 3c1c386..59a68ed 100644
35147--- a/arch/x86/platform/intel-mid/intel_mid_weak_decls.h
35148+++ b/arch/x86/platform/intel-mid/intel_mid_weak_decls.h
35149@@ -13,6 +13,6 @@
35150 /* For every CPU addition a new get_<cpuname>_ops interface needs
35151 * to be added.
35152 */
35153-extern void *get_penwell_ops(void);
35154-extern void *get_cloverview_ops(void);
35155-extern void *get_tangier_ops(void);
35156+extern const void *get_penwell_ops(void);
35157+extern const void *get_cloverview_ops(void);
35158+extern const void *get_tangier_ops(void);
35159diff --git a/arch/x86/platform/intel-mid/mfld.c b/arch/x86/platform/intel-mid/mfld.c
35160index 23381d2..8ddc10e 100644
35161--- a/arch/x86/platform/intel-mid/mfld.c
35162+++ b/arch/x86/platform/intel-mid/mfld.c
35163@@ -64,12 +64,12 @@ static void __init penwell_arch_setup(void)
35164 pm_power_off = mfld_power_off;
35165 }
35166
35167-void *get_penwell_ops(void)
35168+const void *get_penwell_ops(void)
35169 {
35170 return &penwell_ops;
35171 }
35172
35173-void *get_cloverview_ops(void)
35174+const void *get_cloverview_ops(void)
35175 {
35176 return &penwell_ops;
35177 }
35178diff --git a/arch/x86/platform/intel-mid/mrfl.c b/arch/x86/platform/intel-mid/mrfl.c
35179index aaca917..66eadbc 100644
35180--- a/arch/x86/platform/intel-mid/mrfl.c
35181+++ b/arch/x86/platform/intel-mid/mrfl.c
35182@@ -97,7 +97,7 @@ static struct intel_mid_ops tangier_ops = {
35183 .arch_setup = tangier_arch_setup,
35184 };
35185
35186-void *get_tangier_ops(void)
35187+const void *get_tangier_ops(void)
35188 {
35189 return &tangier_ops;
35190 }
35191diff --git a/arch/x86/platform/intel-quark/imr_selftest.c b/arch/x86/platform/intel-quark/imr_selftest.c
35192index c9a0838..fae0977 100644
35193--- a/arch/x86/platform/intel-quark/imr_selftest.c
35194+++ b/arch/x86/platform/intel-quark/imr_selftest.c
35195@@ -54,7 +54,7 @@ static void __init imr_self_test_result(int res, const char *fmt, ...)
35196 */
35197 static void __init imr_self_test(void)
35198 {
35199- phys_addr_t base = virt_to_phys(&_text);
35200+ phys_addr_t base = virt_to_phys(ktla_ktva(_text));
35201 size_t size = virt_to_phys(&__end_rodata) - base;
35202 const char *fmt_over = "overlapped IMR @ (0x%08lx - 0x%08lx)\n";
35203 int ret;
35204diff --git a/arch/x86/platform/olpc/olpc_dt.c b/arch/x86/platform/olpc/olpc_dt.c
35205index d6ee929..3637cb5 100644
35206--- a/arch/x86/platform/olpc/olpc_dt.c
35207+++ b/arch/x86/platform/olpc/olpc_dt.c
35208@@ -156,7 +156,7 @@ void * __init prom_early_alloc(unsigned long size)
35209 return res;
35210 }
35211
35212-static struct of_pdt_ops prom_olpc_ops __initdata = {
35213+static struct of_pdt_ops prom_olpc_ops __initconst = {
35214 .nextprop = olpc_dt_nextprop,
35215 .getproplen = olpc_dt_getproplen,
35216 .getproperty = olpc_dt_getproperty,
35217diff --git a/arch/x86/power/cpu.c b/arch/x86/power/cpu.c
35218index 3e32ed5..cc0adc5 100644
35219--- a/arch/x86/power/cpu.c
35220+++ b/arch/x86/power/cpu.c
35221@@ -134,11 +134,8 @@ static void do_fpu_end(void)
35222 static void fix_processor_context(void)
35223 {
35224 int cpu = smp_processor_id();
35225- struct tss_struct *t = &per_cpu(init_tss, cpu);
35226-#ifdef CONFIG_X86_64
35227- struct desc_struct *desc = get_cpu_gdt_table(cpu);
35228- tss_desc tss;
35229-#endif
35230+ struct tss_struct *t = init_tss + cpu;
35231+
35232 set_tss_desc(cpu, t); /*
35233 * This just modifies memory; should not be
35234 * necessary. But... This is necessary, because
35235@@ -147,10 +144,6 @@ static void fix_processor_context(void)
35236 */
35237
35238 #ifdef CONFIG_X86_64
35239- memcpy(&tss, &desc[GDT_ENTRY_TSS], sizeof(tss_desc));
35240- tss.type = 0x9; /* The available 64-bit TSS (see AMD vol 2, pg 91 */
35241- write_gdt_entry(desc, GDT_ENTRY_TSS, &tss, DESC_TSS);
35242-
35243 syscall_init(); /* This sets MSR_*STAR and related */
35244 #endif
35245 load_TR_desc(); /* This does ltr */
35246diff --git a/arch/x86/realmode/init.c b/arch/x86/realmode/init.c
35247index 0b7a63d..0d0f2c2 100644
35248--- a/arch/x86/realmode/init.c
35249+++ b/arch/x86/realmode/init.c
35250@@ -68,7 +68,13 @@ void __init setup_real_mode(void)
35251 __va(real_mode_header->trampoline_header);
35252
35253 #ifdef CONFIG_X86_32
35254- trampoline_header->start = __pa_symbol(startup_32_smp);
35255+ trampoline_header->start = __pa_symbol(ktla_ktva(startup_32_smp));
35256+
35257+#ifdef CONFIG_PAX_KERNEXEC
35258+ trampoline_header->start -= LOAD_PHYSICAL_ADDR;
35259+#endif
35260+
35261+ trampoline_header->boot_cs = __BOOT_CS;
35262 trampoline_header->gdt_limit = __BOOT_DS + 7;
35263 trampoline_header->gdt_base = __pa_symbol(boot_gdt);
35264 #else
35265@@ -84,7 +90,7 @@ void __init setup_real_mode(void)
35266 *trampoline_cr4_features = __read_cr4();
35267
35268 trampoline_pgd = (u64 *) __va(real_mode_header->trampoline_pgd);
35269- trampoline_pgd[0] = init_level4_pgt[pgd_index(__PAGE_OFFSET)].pgd;
35270+ trampoline_pgd[0] = init_level4_pgt[pgd_index(__PAGE_OFFSET)].pgd & ~_PAGE_NX;
35271 trampoline_pgd[511] = init_level4_pgt[511].pgd;
35272 #endif
35273 }
35274diff --git a/arch/x86/realmode/rm/Makefile b/arch/x86/realmode/rm/Makefile
35275index 2730d77..2e4cd19 100644
35276--- a/arch/x86/realmode/rm/Makefile
35277+++ b/arch/x86/realmode/rm/Makefile
35278@@ -68,5 +68,8 @@ $(obj)/realmode.relocs: $(obj)/realmode.elf FORCE
35279
35280 KBUILD_CFLAGS := $(LINUXINCLUDE) $(REALMODE_CFLAGS) -D_SETUP -D_WAKEUP \
35281 -I$(srctree)/arch/x86/boot
35282+ifdef CONSTIFY_PLUGIN
35283+KBUILD_CFLAGS += -fplugin-arg-constify_plugin-no-constify
35284+endif
35285 KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__
35286 GCOV_PROFILE := n
35287diff --git a/arch/x86/realmode/rm/header.S b/arch/x86/realmode/rm/header.S
35288index a28221d..93c40f1 100644
35289--- a/arch/x86/realmode/rm/header.S
35290+++ b/arch/x86/realmode/rm/header.S
35291@@ -30,7 +30,9 @@ GLOBAL(real_mode_header)
35292 #endif
35293 /* APM/BIOS reboot */
35294 .long pa_machine_real_restart_asm
35295-#ifdef CONFIG_X86_64
35296+#ifdef CONFIG_X86_32
35297+ .long __KERNEL_CS
35298+#else
35299 .long __KERNEL32_CS
35300 #endif
35301 END(real_mode_header)
35302diff --git a/arch/x86/realmode/rm/reboot.S b/arch/x86/realmode/rm/reboot.S
35303index d66c607..3def845 100644
35304--- a/arch/x86/realmode/rm/reboot.S
35305+++ b/arch/x86/realmode/rm/reboot.S
35306@@ -27,6 +27,10 @@ ENTRY(machine_real_restart_asm)
35307 lgdtl pa_tr_gdt
35308
35309 /* Disable paging to drop us out of long mode */
35310+ movl %cr4, %eax
35311+ andl $~X86_CR4_PCIDE, %eax
35312+ movl %eax, %cr4
35313+
35314 movl %cr0, %eax
35315 andl $~X86_CR0_PG, %eax
35316 movl %eax, %cr0
35317diff --git a/arch/x86/realmode/rm/trampoline_32.S b/arch/x86/realmode/rm/trampoline_32.S
35318index 48ddd76..c26749f 100644
35319--- a/arch/x86/realmode/rm/trampoline_32.S
35320+++ b/arch/x86/realmode/rm/trampoline_32.S
35321@@ -24,6 +24,12 @@
35322 #include <asm/page_types.h>
35323 #include "realmode.h"
35324
35325+#ifdef CONFIG_PAX_KERNEXEC
35326+#define ta(X) (X)
35327+#else
35328+#define ta(X) (pa_ ## X)
35329+#endif
35330+
35331 .text
35332 .code16
35333
35334@@ -38,8 +44,6 @@ ENTRY(trampoline_start)
35335
35336 cli # We should be safe anyway
35337
35338- movl tr_start, %eax # where we need to go
35339-
35340 movl $0xA5A5A5A5, trampoline_status
35341 # write marker for master knows we're running
35342
35343@@ -55,7 +59,7 @@ ENTRY(trampoline_start)
35344 movw $1, %dx # protected mode (PE) bit
35345 lmsw %dx # into protected mode
35346
35347- ljmpl $__BOOT_CS, $pa_startup_32
35348+ ljmpl *(trampoline_header)
35349
35350 .section ".text32","ax"
35351 .code32
35352@@ -66,7 +70,7 @@ ENTRY(startup_32) # note: also used from wakeup_asm.S
35353 .balign 8
35354 GLOBAL(trampoline_header)
35355 tr_start: .space 4
35356- tr_gdt_pad: .space 2
35357+ tr_boot_cs: .space 2
35358 tr_gdt: .space 6
35359 END(trampoline_header)
35360
35361diff --git a/arch/x86/realmode/rm/trampoline_64.S b/arch/x86/realmode/rm/trampoline_64.S
35362index dac7b20..72dbaca 100644
35363--- a/arch/x86/realmode/rm/trampoline_64.S
35364+++ b/arch/x86/realmode/rm/trampoline_64.S
35365@@ -93,6 +93,7 @@ ENTRY(startup_32)
35366 movl %edx, %gs
35367
35368 movl pa_tr_cr4, %eax
35369+ andl $~X86_CR4_PCIDE, %eax
35370 movl %eax, %cr4 # Enable PAE mode
35371
35372 # Setup trampoline 4 level pagetables
35373@@ -106,7 +107,7 @@ ENTRY(startup_32)
35374 wrmsr
35375
35376 # Enable paging and in turn activate Long Mode
35377- movl $(X86_CR0_PG | X86_CR0_WP | X86_CR0_PE), %eax
35378+ movl $(X86_CR0_PG | X86_CR0_PE), %eax
35379 movl %eax, %cr0
35380
35381 /*
35382diff --git a/arch/x86/realmode/rm/wakeup_asm.S b/arch/x86/realmode/rm/wakeup_asm.S
35383index 9e7e147..25a4158 100644
35384--- a/arch/x86/realmode/rm/wakeup_asm.S
35385+++ b/arch/x86/realmode/rm/wakeup_asm.S
35386@@ -126,11 +126,10 @@ ENTRY(wakeup_start)
35387 lgdtl pmode_gdt
35388
35389 /* This really couldn't... */
35390- movl pmode_entry, %eax
35391 movl pmode_cr0, %ecx
35392 movl %ecx, %cr0
35393- ljmpl $__KERNEL_CS, $pa_startup_32
35394- /* -> jmp *%eax in trampoline_32.S */
35395+
35396+ ljmpl *pmode_entry
35397 #else
35398 jmp trampoline_start
35399 #endif
35400diff --git a/arch/x86/tools/Makefile b/arch/x86/tools/Makefile
35401index 604a37e..e49702a 100644
35402--- a/arch/x86/tools/Makefile
35403+++ b/arch/x86/tools/Makefile
35404@@ -37,7 +37,7 @@ $(obj)/test_get_len.o: $(srctree)/arch/x86/lib/insn.c $(srctree)/arch/x86/lib/in
35405
35406 $(obj)/insn_sanity.o: $(srctree)/arch/x86/lib/insn.c $(srctree)/arch/x86/lib/inat.c $(srctree)/arch/x86/include/asm/inat_types.h $(srctree)/arch/x86/include/asm/inat.h $(srctree)/arch/x86/include/asm/insn.h $(objtree)/arch/x86/lib/inat-tables.c
35407
35408-HOST_EXTRACFLAGS += -I$(srctree)/tools/include
35409+HOST_EXTRACFLAGS += -I$(srctree)/tools/include -ggdb
35410 hostprogs-y += relocs
35411 relocs-objs := relocs_32.o relocs_64.o relocs_common.o
35412 PHONY += relocs
35413diff --git a/arch/x86/tools/relocs.c b/arch/x86/tools/relocs.c
35414index 0c2fae8..88036b7 100644
35415--- a/arch/x86/tools/relocs.c
35416+++ b/arch/x86/tools/relocs.c
35417@@ -1,5 +1,7 @@
35418 /* This is included from relocs_32/64.c */
35419
35420+#include "../../../include/generated/autoconf.h"
35421+
35422 #define ElfW(type) _ElfW(ELF_BITS, type)
35423 #define _ElfW(bits, type) __ElfW(bits, type)
35424 #define __ElfW(bits, type) Elf##bits##_##type
35425@@ -11,6 +13,7 @@
35426 #define Elf_Sym ElfW(Sym)
35427
35428 static Elf_Ehdr ehdr;
35429+static Elf_Phdr *phdr;
35430
35431 struct relocs {
35432 uint32_t *offset;
35433@@ -386,9 +389,39 @@ static void read_ehdr(FILE *fp)
35434 }
35435 }
35436
35437+static void read_phdrs(FILE *fp)
35438+{
35439+ unsigned int i;
35440+
35441+ phdr = calloc(ehdr.e_phnum, sizeof(Elf_Phdr));
35442+ if (!phdr) {
35443+ die("Unable to allocate %d program headers\n",
35444+ ehdr.e_phnum);
35445+ }
35446+ if (fseek(fp, ehdr.e_phoff, SEEK_SET) < 0) {
35447+ die("Seek to %d failed: %s\n",
35448+ ehdr.e_phoff, strerror(errno));
35449+ }
35450+ if (fread(phdr, sizeof(*phdr), ehdr.e_phnum, fp) != ehdr.e_phnum) {
35451+ die("Cannot read ELF program headers: %s\n",
35452+ strerror(errno));
35453+ }
35454+ for(i = 0; i < ehdr.e_phnum; i++) {
35455+ phdr[i].p_type = elf_word_to_cpu(phdr[i].p_type);
35456+ phdr[i].p_offset = elf_off_to_cpu(phdr[i].p_offset);
35457+ phdr[i].p_vaddr = elf_addr_to_cpu(phdr[i].p_vaddr);
35458+ phdr[i].p_paddr = elf_addr_to_cpu(phdr[i].p_paddr);
35459+ phdr[i].p_filesz = elf_word_to_cpu(phdr[i].p_filesz);
35460+ phdr[i].p_memsz = elf_word_to_cpu(phdr[i].p_memsz);
35461+ phdr[i].p_flags = elf_word_to_cpu(phdr[i].p_flags);
35462+ phdr[i].p_align = elf_word_to_cpu(phdr[i].p_align);
35463+ }
35464+
35465+}
35466+
35467 static void read_shdrs(FILE *fp)
35468 {
35469- int i;
35470+ unsigned int i;
35471 Elf_Shdr shdr;
35472
35473 secs = calloc(ehdr.e_shnum, sizeof(struct section));
35474@@ -423,7 +456,7 @@ static void read_shdrs(FILE *fp)
35475
35476 static void read_strtabs(FILE *fp)
35477 {
35478- int i;
35479+ unsigned int i;
35480 for (i = 0; i < ehdr.e_shnum; i++) {
35481 struct section *sec = &secs[i];
35482 if (sec->shdr.sh_type != SHT_STRTAB) {
35483@@ -448,7 +481,7 @@ static void read_strtabs(FILE *fp)
35484
35485 static void read_symtabs(FILE *fp)
35486 {
35487- int i,j;
35488+ unsigned int i,j;
35489 for (i = 0; i < ehdr.e_shnum; i++) {
35490 struct section *sec = &secs[i];
35491 if (sec->shdr.sh_type != SHT_SYMTAB) {
35492@@ -479,9 +512,11 @@ static void read_symtabs(FILE *fp)
35493 }
35494
35495
35496-static void read_relocs(FILE *fp)
35497+static void read_relocs(FILE *fp, int use_real_mode)
35498 {
35499- int i,j;
35500+ unsigned int i,j;
35501+ uint32_t base;
35502+
35503 for (i = 0; i < ehdr.e_shnum; i++) {
35504 struct section *sec = &secs[i];
35505 if (sec->shdr.sh_type != SHT_REL_TYPE) {
35506@@ -501,9 +536,22 @@ static void read_relocs(FILE *fp)
35507 die("Cannot read symbol table: %s\n",
35508 strerror(errno));
35509 }
35510+ base = 0;
35511+
35512+#ifdef CONFIG_X86_32
35513+ for (j = 0; !use_real_mode && j < ehdr.e_phnum; j++) {
35514+ if (phdr[j].p_type != PT_LOAD )
35515+ continue;
35516+ 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)
35517+ continue;
35518+ base = CONFIG_PAGE_OFFSET + phdr[j].p_paddr - phdr[j].p_vaddr;
35519+ break;
35520+ }
35521+#endif
35522+
35523 for (j = 0; j < sec->shdr.sh_size/sizeof(Elf_Rel); j++) {
35524 Elf_Rel *rel = &sec->reltab[j];
35525- rel->r_offset = elf_addr_to_cpu(rel->r_offset);
35526+ rel->r_offset = elf_addr_to_cpu(rel->r_offset) + base;
35527 rel->r_info = elf_xword_to_cpu(rel->r_info);
35528 #if (SHT_REL_TYPE == SHT_RELA)
35529 rel->r_addend = elf_xword_to_cpu(rel->r_addend);
35530@@ -515,7 +563,7 @@ static void read_relocs(FILE *fp)
35531
35532 static void print_absolute_symbols(void)
35533 {
35534- int i;
35535+ unsigned int i;
35536 const char *format;
35537
35538 if (ELF_BITS == 64)
35539@@ -528,7 +576,7 @@ static void print_absolute_symbols(void)
35540 for (i = 0; i < ehdr.e_shnum; i++) {
35541 struct section *sec = &secs[i];
35542 char *sym_strtab;
35543- int j;
35544+ unsigned int j;
35545
35546 if (sec->shdr.sh_type != SHT_SYMTAB) {
35547 continue;
35548@@ -555,7 +603,7 @@ static void print_absolute_symbols(void)
35549
35550 static void print_absolute_relocs(void)
35551 {
35552- int i, printed = 0;
35553+ unsigned int i, printed = 0;
35554 const char *format;
35555
35556 if (ELF_BITS == 64)
35557@@ -568,7 +616,7 @@ static void print_absolute_relocs(void)
35558 struct section *sec_applies, *sec_symtab;
35559 char *sym_strtab;
35560 Elf_Sym *sh_symtab;
35561- int j;
35562+ unsigned int j;
35563 if (sec->shdr.sh_type != SHT_REL_TYPE) {
35564 continue;
35565 }
35566@@ -645,13 +693,13 @@ static void add_reloc(struct relocs *r, uint32_t offset)
35567 static void walk_relocs(int (*process)(struct section *sec, Elf_Rel *rel,
35568 Elf_Sym *sym, const char *symname))
35569 {
35570- int i;
35571+ unsigned int i;
35572 /* Walk through the relocations */
35573 for (i = 0; i < ehdr.e_shnum; i++) {
35574 char *sym_strtab;
35575 Elf_Sym *sh_symtab;
35576 struct section *sec_applies, *sec_symtab;
35577- int j;
35578+ unsigned int j;
35579 struct section *sec = &secs[i];
35580
35581 if (sec->shdr.sh_type != SHT_REL_TYPE) {
35582@@ -830,6 +878,23 @@ static int do_reloc32(struct section *sec, Elf_Rel *rel, Elf_Sym *sym,
35583 {
35584 unsigned r_type = ELF32_R_TYPE(rel->r_info);
35585 int shn_abs = (sym->st_shndx == SHN_ABS) && !is_reloc(S_REL, symname);
35586+ char *sym_strtab = sec->link->link->strtab;
35587+
35588+ /* Don't relocate actual per-cpu variables, they are absolute indices, not addresses */
35589+ if (!strcmp(sec_name(sym->st_shndx), ".data..percpu") && strcmp(sym_name(sym_strtab, sym), "__per_cpu_load"))
35590+ return 0;
35591+
35592+#ifdef CONFIG_PAX_KERNEXEC
35593+ /* Don't relocate actual code, they are relocated implicitly by the base address of KERNEL_CS */
35594+ if (!strcmp(sec_name(sym->st_shndx), ".text.end") && !strcmp(sym_name(sym_strtab, sym), "_etext"))
35595+ return 0;
35596+ if (!strcmp(sec_name(sym->st_shndx), ".init.text"))
35597+ return 0;
35598+ if (!strcmp(sec_name(sym->st_shndx), ".exit.text"))
35599+ return 0;
35600+ if (!strcmp(sec_name(sym->st_shndx), ".text") && strcmp(sym_name(sym_strtab, sym), "__LOAD_PHYSICAL_ADDR"))
35601+ return 0;
35602+#endif
35603
35604 switch (r_type) {
35605 case R_386_NONE:
35606@@ -968,7 +1033,7 @@ static int write32_as_text(uint32_t v, FILE *f)
35607
35608 static void emit_relocs(int as_text, int use_real_mode)
35609 {
35610- int i;
35611+ unsigned int i;
35612 int (*write_reloc)(uint32_t, FILE *) = write32;
35613 int (*do_reloc)(struct section *sec, Elf_Rel *rel, Elf_Sym *sym,
35614 const char *symname);
35615@@ -1078,10 +1143,11 @@ void process(FILE *fp, int use_real_mode, int as_text,
35616 {
35617 regex_init(use_real_mode);
35618 read_ehdr(fp);
35619+ read_phdrs(fp);
35620 read_shdrs(fp);
35621 read_strtabs(fp);
35622 read_symtabs(fp);
35623- read_relocs(fp);
35624+ read_relocs(fp, use_real_mode);
35625 if (ELF_BITS == 64)
35626 percpu_init();
35627 if (show_absolute_syms) {
35628diff --git a/arch/x86/um/mem_32.c b/arch/x86/um/mem_32.c
35629index f40281e..92728c9 100644
35630--- a/arch/x86/um/mem_32.c
35631+++ b/arch/x86/um/mem_32.c
35632@@ -21,7 +21,7 @@ static int __init gate_vma_init(void)
35633 gate_vma.vm_start = FIXADDR_USER_START;
35634 gate_vma.vm_end = FIXADDR_USER_END;
35635 gate_vma.vm_flags = VM_READ | VM_MAYREAD | VM_EXEC | VM_MAYEXEC;
35636- gate_vma.vm_page_prot = __P101;
35637+ gate_vma.vm_page_prot = vm_get_page_prot(gate_vma.vm_flags);
35638
35639 return 0;
35640 }
35641diff --git a/arch/x86/um/tls_32.c b/arch/x86/um/tls_32.c
35642index 80ffa5b..a33bd15 100644
35643--- a/arch/x86/um/tls_32.c
35644+++ b/arch/x86/um/tls_32.c
35645@@ -260,7 +260,7 @@ out:
35646 if (unlikely(task == current &&
35647 !t->arch.tls_array[idx - GDT_ENTRY_TLS_MIN].flushed)) {
35648 printk(KERN_ERR "get_tls_entry: task with pid %d got here "
35649- "without flushed TLS.", current->pid);
35650+ "without flushed TLS.", task_pid_nr(current));
35651 }
35652
35653 return 0;
35654diff --git a/arch/x86/vdso/Makefile b/arch/x86/vdso/Makefile
35655index 8533c96..ff98c52 100644
35656--- a/arch/x86/vdso/Makefile
35657+++ b/arch/x86/vdso/Makefile
35658@@ -175,7 +175,7 @@ quiet_cmd_vdso = VDSO $@
35659 -Wl,-T,$(filter %.lds,$^) $(filter %.o,$^) && \
35660 sh $(srctree)/$(src)/checkundef.sh '$(NM)' '$@'
35661
35662-VDSO_LDFLAGS = -fPIC -shared $(call cc-ldoption, -Wl$(comma)--hash-style=sysv) \
35663+VDSO_LDFLAGS = -fPIC -shared -Wl,--no-undefined $(call cc-ldoption, -Wl$(comma)--hash-style=sysv) \
35664 $(call cc-ldoption, -Wl$(comma)--build-id) -Wl,-Bsymbolic $(LTO_CFLAGS)
35665 GCOV_PROFILE := n
35666
35667diff --git a/arch/x86/vdso/vdso2c.h b/arch/x86/vdso/vdso2c.h
35668index 0224987..c7d65a5 100644
35669--- a/arch/x86/vdso/vdso2c.h
35670+++ b/arch/x86/vdso/vdso2c.h
35671@@ -12,7 +12,7 @@ static void BITSFUNC(go)(void *raw_addr, size_t raw_len,
35672 unsigned long load_size = -1; /* Work around bogus warning */
35673 unsigned long mapping_size;
35674 ELF(Ehdr) *hdr = (ELF(Ehdr) *)raw_addr;
35675- int i;
35676+ unsigned int i;
35677 unsigned long j;
35678 ELF(Shdr) *symtab_hdr = NULL, *strtab_hdr, *secstrings_hdr,
35679 *alt_sec = NULL;
35680diff --git a/arch/x86/vdso/vdso32-setup.c b/arch/x86/vdso/vdso32-setup.c
35681index e904c27..b9eaa03 100644
35682--- a/arch/x86/vdso/vdso32-setup.c
35683+++ b/arch/x86/vdso/vdso32-setup.c
35684@@ -14,6 +14,7 @@
35685 #include <asm/cpufeature.h>
35686 #include <asm/processor.h>
35687 #include <asm/vdso.h>
35688+#include <asm/mman.h>
35689
35690 #ifdef CONFIG_COMPAT_VDSO
35691 #define VDSO_DEFAULT 0
35692diff --git a/arch/x86/vdso/vma.c b/arch/x86/vdso/vma.c
35693index 1c9f750..cfddb1a 100644
35694--- a/arch/x86/vdso/vma.c
35695+++ b/arch/x86/vdso/vma.c
35696@@ -19,10 +19,7 @@
35697 #include <asm/page.h>
35698 #include <asm/hpet.h>
35699 #include <asm/desc.h>
35700-
35701-#if defined(CONFIG_X86_64)
35702-unsigned int __read_mostly vdso64_enabled = 1;
35703-#endif
35704+#include <asm/mman.h>
35705
35706 void __init init_vdso_image(const struct vdso_image *image)
35707 {
35708@@ -101,6 +98,11 @@ static int map_vdso(const struct vdso_image *image, bool calculate_addr)
35709 .pages = no_pages,
35710 };
35711
35712+#ifdef CONFIG_PAX_RANDMMAP
35713+ if (mm->pax_flags & MF_PAX_RANDMMAP)
35714+ calculate_addr = false;
35715+#endif
35716+
35717 if (calculate_addr) {
35718 addr = vdso_addr(current->mm->start_stack,
35719 image->size - image->sym_vvar_start);
35720@@ -111,14 +113,14 @@ static int map_vdso(const struct vdso_image *image, bool calculate_addr)
35721 down_write(&mm->mmap_sem);
35722
35723 addr = get_unmapped_area(NULL, addr,
35724- image->size - image->sym_vvar_start, 0, 0);
35725+ image->size - image->sym_vvar_start, 0, MAP_EXECUTABLE);
35726 if (IS_ERR_VALUE(addr)) {
35727 ret = addr;
35728 goto up_fail;
35729 }
35730
35731 text_start = addr - image->sym_vvar_start;
35732- current->mm->context.vdso = (void __user *)text_start;
35733+ mm->context.vdso = text_start;
35734
35735 /*
35736 * MAYWRITE to allow gdb to COW and set breakpoints
35737@@ -163,15 +165,12 @@ static int map_vdso(const struct vdso_image *image, bool calculate_addr)
35738 hpet_address >> PAGE_SHIFT,
35739 PAGE_SIZE,
35740 pgprot_noncached(PAGE_READONLY));
35741-
35742- if (ret)
35743- goto up_fail;
35744 }
35745 #endif
35746
35747 up_fail:
35748 if (ret)
35749- current->mm->context.vdso = NULL;
35750+ current->mm->context.vdso = 0;
35751
35752 up_write(&mm->mmap_sem);
35753 return ret;
35754@@ -191,8 +190,8 @@ static int load_vdso32(void)
35755
35756 if (selected_vdso32->sym_VDSO32_SYSENTER_RETURN)
35757 current_thread_info()->sysenter_return =
35758- current->mm->context.vdso +
35759- selected_vdso32->sym_VDSO32_SYSENTER_RETURN;
35760+ (void __force_user *)(current->mm->context.vdso +
35761+ selected_vdso32->sym_VDSO32_SYSENTER_RETURN);
35762
35763 return 0;
35764 }
35765@@ -201,9 +200,6 @@ static int load_vdso32(void)
35766 #ifdef CONFIG_X86_64
35767 int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
35768 {
35769- if (!vdso64_enabled)
35770- return 0;
35771-
35772 return map_vdso(&vdso_image_64, true);
35773 }
35774
35775@@ -212,12 +208,8 @@ int compat_arch_setup_additional_pages(struct linux_binprm *bprm,
35776 int uses_interp)
35777 {
35778 #ifdef CONFIG_X86_X32_ABI
35779- if (test_thread_flag(TIF_X32)) {
35780- if (!vdso64_enabled)
35781- return 0;
35782-
35783+ if (test_thread_flag(TIF_X32))
35784 return map_vdso(&vdso_image_x32, true);
35785- }
35786 #endif
35787
35788 return load_vdso32();
35789@@ -231,15 +223,6 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
35790 #endif
35791
35792 #ifdef CONFIG_X86_64
35793-static __init int vdso_setup(char *s)
35794-{
35795- vdso64_enabled = simple_strtoul(s, NULL, 0);
35796- return 0;
35797-}
35798-__setup("vdso=", vdso_setup);
35799-#endif
35800-
35801-#ifdef CONFIG_X86_64
35802 static void vgetcpu_cpu_init(void *arg)
35803 {
35804 int cpu = smp_processor_id();
35805diff --git a/arch/x86/xen/Kconfig b/arch/x86/xen/Kconfig
35806index e88fda8..76ce7ce 100644
35807--- a/arch/x86/xen/Kconfig
35808+++ b/arch/x86/xen/Kconfig
35809@@ -9,6 +9,7 @@ config XEN
35810 select XEN_HAVE_PVMMU
35811 depends on X86_64 || (X86_32 && X86_PAE)
35812 depends on X86_TSC
35813+ depends on !GRKERNSEC_CONFIG_AUTO || GRKERNSEC_CONFIG_VIRT_XEN
35814 help
35815 This is the Linux Xen port. Enabling this will allow the
35816 kernel to boot in a paravirtualized environment under the
35817diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
35818index 5240f56..0c12163 100644
35819--- a/arch/x86/xen/enlighten.c
35820+++ b/arch/x86/xen/enlighten.c
35821@@ -125,8 +125,6 @@ EXPORT_SYMBOL_GPL(xen_start_info);
35822
35823 struct shared_info xen_dummy_shared_info;
35824
35825-void *xen_initial_gdt;
35826-
35827 RESERVE_BRK(shared_info_page_brk, PAGE_SIZE);
35828 __read_mostly int xen_have_vector_callback;
35829 EXPORT_SYMBOL_GPL(xen_have_vector_callback);
35830@@ -544,8 +542,7 @@ static void xen_load_gdt(const struct desc_ptr *dtr)
35831 {
35832 unsigned long va = dtr->address;
35833 unsigned int size = dtr->size + 1;
35834- unsigned pages = (size + PAGE_SIZE - 1) / PAGE_SIZE;
35835- unsigned long frames[pages];
35836+ unsigned long frames[65536 / PAGE_SIZE];
35837 int f;
35838
35839 /*
35840@@ -593,8 +590,7 @@ static void __init xen_load_gdt_boot(const struct desc_ptr *dtr)
35841 {
35842 unsigned long va = dtr->address;
35843 unsigned int size = dtr->size + 1;
35844- unsigned pages = (size + PAGE_SIZE - 1) / PAGE_SIZE;
35845- unsigned long frames[pages];
35846+ unsigned long frames[(GDT_SIZE + PAGE_SIZE - 1) / PAGE_SIZE];
35847 int f;
35848
35849 /*
35850@@ -602,7 +598,7 @@ static void __init xen_load_gdt_boot(const struct desc_ptr *dtr)
35851 * 8-byte entries, or 16 4k pages..
35852 */
35853
35854- BUG_ON(size > 65536);
35855+ BUG_ON(size > GDT_SIZE);
35856 BUG_ON(va & ~PAGE_MASK);
35857
35858 for (f = 0; va < dtr->address + size; va += PAGE_SIZE, f++) {
35859@@ -991,7 +987,7 @@ static u32 xen_safe_apic_wait_icr_idle(void)
35860 return 0;
35861 }
35862
35863-static void set_xen_basic_apic_ops(void)
35864+static void __init set_xen_basic_apic_ops(void)
35865 {
35866 apic->read = xen_apic_read;
35867 apic->write = xen_apic_write;
35868@@ -1308,30 +1304,30 @@ static const struct pv_apic_ops xen_apic_ops __initconst = {
35869 #endif
35870 };
35871
35872-static void xen_reboot(int reason)
35873+static __noreturn void xen_reboot(int reason)
35874 {
35875 struct sched_shutdown r = { .reason = reason };
35876
35877- if (HYPERVISOR_sched_op(SCHEDOP_shutdown, &r))
35878- BUG();
35879+ HYPERVISOR_sched_op(SCHEDOP_shutdown, &r);
35880+ BUG();
35881 }
35882
35883-static void xen_restart(char *msg)
35884+static __noreturn void xen_restart(char *msg)
35885 {
35886 xen_reboot(SHUTDOWN_reboot);
35887 }
35888
35889-static void xen_emergency_restart(void)
35890+static __noreturn void xen_emergency_restart(void)
35891 {
35892 xen_reboot(SHUTDOWN_reboot);
35893 }
35894
35895-static void xen_machine_halt(void)
35896+static __noreturn void xen_machine_halt(void)
35897 {
35898 xen_reboot(SHUTDOWN_poweroff);
35899 }
35900
35901-static void xen_machine_power_off(void)
35902+static __noreturn void xen_machine_power_off(void)
35903 {
35904 if (pm_power_off)
35905 pm_power_off();
35906@@ -1484,8 +1480,11 @@ static void __ref xen_setup_gdt(int cpu)
35907 pv_cpu_ops.write_gdt_entry = xen_write_gdt_entry_boot;
35908 pv_cpu_ops.load_gdt = xen_load_gdt_boot;
35909
35910- setup_stack_canary_segment(0);
35911- switch_to_new_gdt(0);
35912+ setup_stack_canary_segment(cpu);
35913+#ifdef CONFIG_X86_64
35914+ load_percpu_segment(cpu);
35915+#endif
35916+ switch_to_new_gdt(cpu);
35917
35918 pv_cpu_ops.write_gdt_entry = xen_write_gdt_entry;
35919 pv_cpu_ops.load_gdt = xen_load_gdt;
35920@@ -1600,7 +1599,17 @@ asmlinkage __visible void __init xen_start_kernel(void)
35921 __userpte_alloc_gfp &= ~__GFP_HIGHMEM;
35922
35923 /* Work out if we support NX */
35924- x86_configure_nx();
35925+#if defined(CONFIG_X86_64) || defined(CONFIG_X86_PAE)
35926+ if ((cpuid_eax(0x80000000) & 0xffff0000) == 0x80000000 &&
35927+ (cpuid_edx(0x80000001) & (1U << (X86_FEATURE_NX & 31)))) {
35928+ unsigned l, h;
35929+
35930+ __supported_pte_mask |= _PAGE_NX;
35931+ rdmsr(MSR_EFER, l, h);
35932+ l |= EFER_NX;
35933+ wrmsr(MSR_EFER, l, h);
35934+ }
35935+#endif
35936
35937 /* Get mfn list */
35938 xen_build_dynamic_phys_to_machine();
35939@@ -1628,13 +1637,6 @@ asmlinkage __visible void __init xen_start_kernel(void)
35940
35941 machine_ops = xen_machine_ops;
35942
35943- /*
35944- * The only reliable way to retain the initial address of the
35945- * percpu gdt_page is to remember it here, so we can go and
35946- * mark it RW later, when the initial percpu area is freed.
35947- */
35948- xen_initial_gdt = &per_cpu(gdt_page, 0);
35949-
35950 xen_smp_init();
35951
35952 #ifdef CONFIG_ACPI_NUMA
35953diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
35954index adca9e2..cdba9d1 100644
35955--- a/arch/x86/xen/mmu.c
35956+++ b/arch/x86/xen/mmu.c
35957@@ -379,7 +379,7 @@ static pteval_t pte_mfn_to_pfn(pteval_t val)
35958 return val;
35959 }
35960
35961-static pteval_t pte_pfn_to_mfn(pteval_t val)
35962+static pteval_t __intentional_overflow(-1) pte_pfn_to_mfn(pteval_t val)
35963 {
35964 if (val & _PAGE_PRESENT) {
35965 unsigned long pfn = (val & PTE_PFN_MASK) >> PAGE_SHIFT;
35966@@ -1835,7 +1835,11 @@ void __init xen_setup_kernel_pagetable(pgd_t *pgd, unsigned long max_pfn)
35967 * L3_k[511] -> level2_fixmap_pgt */
35968 convert_pfn_mfn(level3_kernel_pgt);
35969
35970+ convert_pfn_mfn(level3_vmalloc_start_pgt);
35971+ convert_pfn_mfn(level3_vmalloc_end_pgt);
35972+ convert_pfn_mfn(level3_vmemmap_pgt);
35973 /* L3_k[511][506] -> level1_fixmap_pgt */
35974+ /* L3_k[511][507] -> level1_vsyscall_pgt */
35975 convert_pfn_mfn(level2_fixmap_pgt);
35976 }
35977 /* We get [511][511] and have Xen's version of level2_kernel_pgt */
35978@@ -1860,11 +1864,18 @@ void __init xen_setup_kernel_pagetable(pgd_t *pgd, unsigned long max_pfn)
35979 set_page_prot(init_level4_pgt, PAGE_KERNEL_RO);
35980 set_page_prot(level3_ident_pgt, PAGE_KERNEL_RO);
35981 set_page_prot(level3_kernel_pgt, PAGE_KERNEL_RO);
35982+ set_page_prot(level3_vmalloc_start_pgt, PAGE_KERNEL_RO);
35983+ set_page_prot(level3_vmalloc_end_pgt, PAGE_KERNEL_RO);
35984+ set_page_prot(level3_vmemmap_pgt, PAGE_KERNEL_RO);
35985 set_page_prot(level3_user_vsyscall, PAGE_KERNEL_RO);
35986 set_page_prot(level2_ident_pgt, PAGE_KERNEL_RO);
35987+ set_page_prot(level2_vmemmap_pgt, PAGE_KERNEL_RO);
35988 set_page_prot(level2_kernel_pgt, PAGE_KERNEL_RO);
35989 set_page_prot(level2_fixmap_pgt, PAGE_KERNEL_RO);
35990- set_page_prot(level1_fixmap_pgt, PAGE_KERNEL_RO);
35991+ set_page_prot(level1_fixmap_pgt[0], PAGE_KERNEL_RO);
35992+ set_page_prot(level1_fixmap_pgt[1], PAGE_KERNEL_RO);
35993+ set_page_prot(level1_fixmap_pgt[2], PAGE_KERNEL_RO);
35994+ set_page_prot(level1_vsyscall_pgt, PAGE_KERNEL_RO);
35995
35996 /* Pin down new L4 */
35997 pin_pagetable_pfn(MMUEXT_PIN_L4_TABLE,
35998@@ -2048,6 +2059,7 @@ static void __init xen_post_allocator_init(void)
35999 pv_mmu_ops.set_pud = xen_set_pud;
36000 #if PAGETABLE_LEVELS == 4
36001 pv_mmu_ops.set_pgd = xen_set_pgd;
36002+ pv_mmu_ops.set_pgd_batched = xen_set_pgd;
36003 #endif
36004
36005 /* This will work as long as patching hasn't happened yet
36006@@ -2126,6 +2138,7 @@ static const struct pv_mmu_ops xen_mmu_ops __initconst = {
36007 .pud_val = PV_CALLEE_SAVE(xen_pud_val),
36008 .make_pud = PV_CALLEE_SAVE(xen_make_pud),
36009 .set_pgd = xen_set_pgd_hyper,
36010+ .set_pgd_batched = xen_set_pgd_hyper,
36011
36012 .alloc_pud = xen_alloc_pmd_init,
36013 .release_pud = xen_release_pmd_init,
36014diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c
36015index 08e8489..b1e182f 100644
36016--- a/arch/x86/xen/smp.c
36017+++ b/arch/x86/xen/smp.c
36018@@ -288,17 +288,13 @@ static void __init xen_smp_prepare_boot_cpu(void)
36019
36020 if (xen_pv_domain()) {
36021 if (!xen_feature(XENFEAT_writable_page_tables))
36022- /* We've switched to the "real" per-cpu gdt, so make
36023- * sure the old memory can be recycled. */
36024- make_lowmem_page_readwrite(xen_initial_gdt);
36025-
36026 #ifdef CONFIG_X86_32
36027 /*
36028 * Xen starts us with XEN_FLAT_RING1_DS, but linux code
36029 * expects __USER_DS
36030 */
36031- loadsegment(ds, __USER_DS);
36032- loadsegment(es, __USER_DS);
36033+ loadsegment(ds, __KERNEL_DS);
36034+ loadsegment(es, __KERNEL_DS);
36035 #endif
36036
36037 xen_filter_cpu_maps();
36038@@ -379,7 +375,7 @@ cpu_initialize_context(unsigned int cpu, struct task_struct *idle)
36039 #ifdef CONFIG_X86_32
36040 /* Note: PVH is not yet supported on x86_32. */
36041 ctxt->user_regs.fs = __KERNEL_PERCPU;
36042- ctxt->user_regs.gs = __KERNEL_STACK_CANARY;
36043+ savesegment(gs, ctxt->user_regs.gs);
36044 #endif
36045 memset(&ctxt->fpu_ctxt, 0, sizeof(ctxt->fpu_ctxt));
36046
36047@@ -387,8 +383,8 @@ cpu_initialize_context(unsigned int cpu, struct task_struct *idle)
36048 ctxt->user_regs.eip = (unsigned long)cpu_bringup_and_idle;
36049 ctxt->flags = VGCF_IN_KERNEL;
36050 ctxt->user_regs.eflags = 0x1000; /* IOPL_RING1 */
36051- ctxt->user_regs.ds = __USER_DS;
36052- ctxt->user_regs.es = __USER_DS;
36053+ ctxt->user_regs.ds = __KERNEL_DS;
36054+ ctxt->user_regs.es = __KERNEL_DS;
36055 ctxt->user_regs.ss = __KERNEL_DS;
36056
36057 xen_copy_trap_info(ctxt->trap_ctxt);
36058@@ -446,14 +442,13 @@ static int xen_cpu_up(unsigned int cpu, struct task_struct *idle)
36059 int rc;
36060
36061 per_cpu(current_task, cpu) = idle;
36062+ per_cpu(current_tinfo, cpu) = &idle->tinfo;
36063 #ifdef CONFIG_X86_32
36064 irq_ctx_init(cpu);
36065 #else
36066 clear_tsk_thread_flag(idle, TIF_FORK);
36067 #endif
36068- per_cpu(kernel_stack, cpu) =
36069- (unsigned long)task_stack_page(idle) -
36070- KERNEL_STACK_OFFSET + THREAD_SIZE;
36071+ per_cpu(kernel_stack, cpu) = (unsigned long)task_stack_page(idle) - 16 + THREAD_SIZE;
36072
36073 xen_setup_runstate_info(cpu);
36074 xen_setup_timer(cpu);
36075@@ -732,7 +727,7 @@ static const struct smp_ops xen_smp_ops __initconst = {
36076
36077 void __init xen_smp_init(void)
36078 {
36079- smp_ops = xen_smp_ops;
36080+ memcpy((void *)&smp_ops, &xen_smp_ops, sizeof smp_ops);
36081 xen_fill_possible_map();
36082 }
36083
36084diff --git a/arch/x86/xen/xen-asm_32.S b/arch/x86/xen/xen-asm_32.S
36085index fd92a64..1f72641 100644
36086--- a/arch/x86/xen/xen-asm_32.S
36087+++ b/arch/x86/xen/xen-asm_32.S
36088@@ -99,7 +99,7 @@ ENTRY(xen_iret)
36089 pushw %fs
36090 movl $(__KERNEL_PERCPU), %eax
36091 movl %eax, %fs
36092- movl %fs:xen_vcpu, %eax
36093+ mov PER_CPU_VAR(xen_vcpu), %eax
36094 POP_FS
36095 #else
36096 movl %ss:xen_vcpu, %eax
36097diff --git a/arch/x86/xen/xen-head.S b/arch/x86/xen/xen-head.S
36098index 674b2225..f1f5dc1 100644
36099--- a/arch/x86/xen/xen-head.S
36100+++ b/arch/x86/xen/xen-head.S
36101@@ -39,6 +39,17 @@ ENTRY(startup_xen)
36102 #ifdef CONFIG_X86_32
36103 mov %esi,xen_start_info
36104 mov $init_thread_union+THREAD_SIZE,%esp
36105+#ifdef CONFIG_SMP
36106+ movl $cpu_gdt_table,%edi
36107+ movl $__per_cpu_load,%eax
36108+ movw %ax,__KERNEL_PERCPU + 2(%edi)
36109+ rorl $16,%eax
36110+ movb %al,__KERNEL_PERCPU + 4(%edi)
36111+ movb %ah,__KERNEL_PERCPU + 7(%edi)
36112+ movl $__per_cpu_end - 1,%eax
36113+ subl $__per_cpu_start,%eax
36114+ movw %ax,__KERNEL_PERCPU + 0(%edi)
36115+#endif
36116 #else
36117 mov %rsi,xen_start_info
36118 mov $init_thread_union+THREAD_SIZE,%rsp
36119diff --git a/arch/x86/xen/xen-ops.h b/arch/x86/xen/xen-ops.h
36120index 9e195c6..523ed36 100644
36121--- a/arch/x86/xen/xen-ops.h
36122+++ b/arch/x86/xen/xen-ops.h
36123@@ -16,8 +16,6 @@ void xen_syscall_target(void);
36124 void xen_syscall32_target(void);
36125 #endif
36126
36127-extern void *xen_initial_gdt;
36128-
36129 struct trap_info;
36130 void xen_copy_trap_info(struct trap_info *traps);
36131
36132diff --git a/arch/xtensa/variants/dc232b/include/variant/core.h b/arch/xtensa/variants/dc232b/include/variant/core.h
36133index 525bd3d..ef888b1 100644
36134--- a/arch/xtensa/variants/dc232b/include/variant/core.h
36135+++ b/arch/xtensa/variants/dc232b/include/variant/core.h
36136@@ -119,9 +119,9 @@
36137 ----------------------------------------------------------------------*/
36138
36139 #define XCHAL_ICACHE_LINESIZE 32 /* I-cache line size in bytes */
36140-#define XCHAL_DCACHE_LINESIZE 32 /* D-cache line size in bytes */
36141 #define XCHAL_ICACHE_LINEWIDTH 5 /* log2(I line size in bytes) */
36142 #define XCHAL_DCACHE_LINEWIDTH 5 /* log2(D line size in bytes) */
36143+#define XCHAL_DCACHE_LINESIZE (_AC(1,UL) << XCHAL_DCACHE_LINEWIDTH) /* D-cache line size in bytes */
36144
36145 #define XCHAL_ICACHE_SIZE 16384 /* I-cache size in bytes or 0 */
36146 #define XCHAL_DCACHE_SIZE 16384 /* D-cache size in bytes or 0 */
36147diff --git a/arch/xtensa/variants/fsf/include/variant/core.h b/arch/xtensa/variants/fsf/include/variant/core.h
36148index 2f33760..835e50a 100644
36149--- a/arch/xtensa/variants/fsf/include/variant/core.h
36150+++ b/arch/xtensa/variants/fsf/include/variant/core.h
36151@@ -11,6 +11,7 @@
36152 #ifndef _XTENSA_CORE_H
36153 #define _XTENSA_CORE_H
36154
36155+#include <linux/const.h>
36156
36157 /****************************************************************************
36158 Parameters Useful for Any Code, USER or PRIVILEGED
36159@@ -112,9 +113,9 @@
36160 ----------------------------------------------------------------------*/
36161
36162 #define XCHAL_ICACHE_LINESIZE 16 /* I-cache line size in bytes */
36163-#define XCHAL_DCACHE_LINESIZE 16 /* D-cache line size in bytes */
36164 #define XCHAL_ICACHE_LINEWIDTH 4 /* log2(I line size in bytes) */
36165 #define XCHAL_DCACHE_LINEWIDTH 4 /* log2(D line size in bytes) */
36166+#define XCHAL_DCACHE_LINESIZE (_AC(1,UL) << XCHAL_DCACHE_LINEWIDTH) /* D-cache line size in bytes */
36167
36168 #define XCHAL_ICACHE_SIZE 8192 /* I-cache size in bytes or 0 */
36169 #define XCHAL_DCACHE_SIZE 8192 /* D-cache size in bytes or 0 */
36170diff --git a/block/bio.c b/block/bio.c
36171index f66a4ea..73ddf55 100644
36172--- a/block/bio.c
36173+++ b/block/bio.c
36174@@ -1172,7 +1172,7 @@ struct bio *bio_copy_user_iov(struct request_queue *q,
36175 /*
36176 * Overflow, abort
36177 */
36178- if (end < start)
36179+ if (end < start || end - start > INT_MAX - nr_pages)
36180 return ERR_PTR(-EINVAL);
36181
36182 nr_pages += end - start;
36183@@ -1297,7 +1297,7 @@ struct bio *bio_map_user_iov(struct request_queue *q,
36184 /*
36185 * Overflow, abort
36186 */
36187- if (end < start)
36188+ if (end < start || end - start > INT_MAX - nr_pages)
36189 return ERR_PTR(-EINVAL);
36190
36191 nr_pages += end - start;
36192diff --git a/block/blk-iopoll.c b/block/blk-iopoll.c
36193index 0736729..2ec3b48 100644
36194--- a/block/blk-iopoll.c
36195+++ b/block/blk-iopoll.c
36196@@ -74,7 +74,7 @@ void blk_iopoll_complete(struct blk_iopoll *iop)
36197 }
36198 EXPORT_SYMBOL(blk_iopoll_complete);
36199
36200-static void blk_iopoll_softirq(struct softirq_action *h)
36201+static __latent_entropy void blk_iopoll_softirq(void)
36202 {
36203 struct list_head *list = this_cpu_ptr(&blk_cpu_iopoll);
36204 int rearm = 0, budget = blk_iopoll_budget;
36205diff --git a/block/blk-map.c b/block/blk-map.c
36206index b8d2725..08c52b0 100644
36207--- a/block/blk-map.c
36208+++ b/block/blk-map.c
36209@@ -192,7 +192,7 @@ int blk_rq_map_kern(struct request_queue *q, struct request *rq, void *kbuf,
36210 if (!len || !kbuf)
36211 return -EINVAL;
36212
36213- do_copy = !blk_rq_aligned(q, addr, len) || object_is_on_stack(kbuf);
36214+ do_copy = !blk_rq_aligned(q, addr, len) || object_starts_on_stack(kbuf);
36215 if (do_copy)
36216 bio = bio_copy_kern(q, kbuf, len, gfp_mask, reading);
36217 else
36218diff --git a/block/blk-softirq.c b/block/blk-softirq.c
36219index 53b1737..08177d2e 100644
36220--- a/block/blk-softirq.c
36221+++ b/block/blk-softirq.c
36222@@ -18,7 +18,7 @@ static DEFINE_PER_CPU(struct list_head, blk_cpu_done);
36223 * Softirq action handler - move entries to local list and loop over them
36224 * while passing them to the queue registered handler.
36225 */
36226-static void blk_done_softirq(struct softirq_action *h)
36227+static __latent_entropy void blk_done_softirq(void)
36228 {
36229 struct list_head *cpu_list, local_list;
36230
36231diff --git a/block/bsg.c b/block/bsg.c
36232index d214e92..9649863 100644
36233--- a/block/bsg.c
36234+++ b/block/bsg.c
36235@@ -140,16 +140,24 @@ static int blk_fill_sgv4_hdr_rq(struct request_queue *q, struct request *rq,
36236 struct sg_io_v4 *hdr, struct bsg_device *bd,
36237 fmode_t has_write_perm)
36238 {
36239+ unsigned char tmpcmd[sizeof(rq->__cmd)];
36240+ unsigned char *cmdptr;
36241+
36242 if (hdr->request_len > BLK_MAX_CDB) {
36243 rq->cmd = kzalloc(hdr->request_len, GFP_KERNEL);
36244 if (!rq->cmd)
36245 return -ENOMEM;
36246- }
36247+ cmdptr = rq->cmd;
36248+ } else
36249+ cmdptr = tmpcmd;
36250
36251- if (copy_from_user(rq->cmd, (void __user *)(unsigned long)hdr->request,
36252+ if (copy_from_user(cmdptr, (void __user *)(unsigned long)hdr->request,
36253 hdr->request_len))
36254 return -EFAULT;
36255
36256+ if (cmdptr != rq->cmd)
36257+ memcpy(rq->cmd, cmdptr, hdr->request_len);
36258+
36259 if (hdr->subprotocol == BSG_SUB_PROTOCOL_SCSI_CMD) {
36260 if (blk_verify_command(rq->cmd, has_write_perm))
36261 return -EPERM;
36262diff --git a/block/compat_ioctl.c b/block/compat_ioctl.c
36263index f678c73..f35aa18 100644
36264--- a/block/compat_ioctl.c
36265+++ b/block/compat_ioctl.c
36266@@ -156,7 +156,7 @@ static int compat_cdrom_generic_command(struct block_device *bdev, fmode_t mode,
36267 cgc = compat_alloc_user_space(sizeof(*cgc));
36268 cgc32 = compat_ptr(arg);
36269
36270- if (copy_in_user(&cgc->cmd, &cgc32->cmd, sizeof(cgc->cmd)) ||
36271+ if (copy_in_user(cgc->cmd, cgc32->cmd, sizeof(cgc->cmd)) ||
36272 get_user(data, &cgc32->buffer) ||
36273 put_user(compat_ptr(data), &cgc->buffer) ||
36274 copy_in_user(&cgc->buflen, &cgc32->buflen,
36275@@ -341,7 +341,7 @@ static int compat_fd_ioctl(struct block_device *bdev, fmode_t mode,
36276 err |= __get_user(f->spec1, &uf->spec1);
36277 err |= __get_user(f->fmt_gap, &uf->fmt_gap);
36278 err |= __get_user(name, &uf->name);
36279- f->name = compat_ptr(name);
36280+ f->name = (void __force_kernel *)compat_ptr(name);
36281 if (err) {
36282 err = -EFAULT;
36283 goto out;
36284diff --git a/block/genhd.c b/block/genhd.c
36285index ea982ea..86e0f9e 100644
36286--- a/block/genhd.c
36287+++ b/block/genhd.c
36288@@ -469,21 +469,24 @@ static char *bdevt_str(dev_t devt, char *buf)
36289
36290 /*
36291 * Register device numbers dev..(dev+range-1)
36292- * range must be nonzero
36293+ * Noop if @range is zero.
36294 * The hash chain is sorted on range, so that subranges can override.
36295 */
36296 void blk_register_region(dev_t devt, unsigned long range, struct module *module,
36297 struct kobject *(*probe)(dev_t, int *, void *),
36298 int (*lock)(dev_t, void *), void *data)
36299 {
36300- kobj_map(bdev_map, devt, range, module, probe, lock, data);
36301+ if (range)
36302+ kobj_map(bdev_map, devt, range, module, probe, lock, data);
36303 }
36304
36305 EXPORT_SYMBOL(blk_register_region);
36306
36307+/* undo blk_register_region(), noop if @range is zero */
36308 void blk_unregister_region(dev_t devt, unsigned long range)
36309 {
36310- kobj_unmap(bdev_map, devt, range);
36311+ if (range)
36312+ kobj_unmap(bdev_map, devt, range);
36313 }
36314
36315 EXPORT_SYMBOL(blk_unregister_region);
36316diff --git a/block/partitions/efi.c b/block/partitions/efi.c
36317index 26cb624..a49c3a5 100644
36318--- a/block/partitions/efi.c
36319+++ b/block/partitions/efi.c
36320@@ -293,14 +293,14 @@ static gpt_entry *alloc_read_gpt_entries(struct parsed_partitions *state,
36321 if (!gpt)
36322 return NULL;
36323
36324+ if (!le32_to_cpu(gpt->num_partition_entries))
36325+ return NULL;
36326+ pte = kcalloc(le32_to_cpu(gpt->num_partition_entries), le32_to_cpu(gpt->sizeof_partition_entry), GFP_KERNEL);
36327+ if (!pte)
36328+ return NULL;
36329+
36330 count = le32_to_cpu(gpt->num_partition_entries) *
36331 le32_to_cpu(gpt->sizeof_partition_entry);
36332- if (!count)
36333- return NULL;
36334- pte = kmalloc(count, GFP_KERNEL);
36335- if (!pte)
36336- return NULL;
36337-
36338 if (read_lba(state, le64_to_cpu(gpt->partition_entry_lba),
36339 (u8 *) pte, count) < count) {
36340 kfree(pte);
36341diff --git a/block/scsi_ioctl.c b/block/scsi_ioctl.c
36342index e1f71c3..02d295a 100644
36343--- a/block/scsi_ioctl.c
36344+++ b/block/scsi_ioctl.c
36345@@ -67,7 +67,7 @@ static int scsi_get_bus(struct request_queue *q, int __user *p)
36346 return put_user(0, p);
36347 }
36348
36349-static int sg_get_timeout(struct request_queue *q)
36350+static int __intentional_overflow(-1) sg_get_timeout(struct request_queue *q)
36351 {
36352 return jiffies_to_clock_t(q->sg_timeout);
36353 }
36354@@ -227,8 +227,20 @@ EXPORT_SYMBOL(blk_verify_command);
36355 static int blk_fill_sghdr_rq(struct request_queue *q, struct request *rq,
36356 struct sg_io_hdr *hdr, fmode_t mode)
36357 {
36358- if (copy_from_user(rq->cmd, hdr->cmdp, hdr->cmd_len))
36359+ unsigned char tmpcmd[sizeof(rq->__cmd)];
36360+ unsigned char *cmdptr;
36361+
36362+ if (rq->cmd != rq->__cmd)
36363+ cmdptr = rq->cmd;
36364+ else
36365+ cmdptr = tmpcmd;
36366+
36367+ if (copy_from_user(cmdptr, hdr->cmdp, hdr->cmd_len))
36368 return -EFAULT;
36369+
36370+ if (cmdptr != rq->cmd)
36371+ memcpy(rq->cmd, cmdptr, hdr->cmd_len);
36372+
36373 if (blk_verify_command(rq->cmd, mode & FMODE_WRITE))
36374 return -EPERM;
36375
36376@@ -422,6 +434,8 @@ int sg_scsi_ioctl(struct request_queue *q, struct gendisk *disk, fmode_t mode,
36377 int err;
36378 unsigned int in_len, out_len, bytes, opcode, cmdlen;
36379 char *buffer = NULL, sense[SCSI_SENSE_BUFFERSIZE];
36380+ unsigned char tmpcmd[sizeof(rq->__cmd)];
36381+ unsigned char *cmdptr;
36382
36383 if (!sic)
36384 return -EINVAL;
36385@@ -460,9 +474,18 @@ int sg_scsi_ioctl(struct request_queue *q, struct gendisk *disk, fmode_t mode,
36386 */
36387 err = -EFAULT;
36388 rq->cmd_len = cmdlen;
36389- if (copy_from_user(rq->cmd, sic->data, cmdlen))
36390+
36391+ if (rq->cmd != rq->__cmd)
36392+ cmdptr = rq->cmd;
36393+ else
36394+ cmdptr = tmpcmd;
36395+
36396+ if (copy_from_user(cmdptr, sic->data, cmdlen))
36397 goto error;
36398
36399+ if (rq->cmd != cmdptr)
36400+ memcpy(rq->cmd, cmdptr, cmdlen);
36401+
36402 if (in_len && copy_from_user(buffer, sic->data + cmdlen, in_len))
36403 goto error;
36404
36405diff --git a/crypto/cryptd.c b/crypto/cryptd.c
36406index 650afac1..f3307de 100644
36407--- a/crypto/cryptd.c
36408+++ b/crypto/cryptd.c
36409@@ -63,7 +63,7 @@ struct cryptd_blkcipher_ctx {
36410
36411 struct cryptd_blkcipher_request_ctx {
36412 crypto_completion_t complete;
36413-};
36414+} __no_const;
36415
36416 struct cryptd_hash_ctx {
36417 struct crypto_shash *child;
36418@@ -80,7 +80,7 @@ struct cryptd_aead_ctx {
36419
36420 struct cryptd_aead_request_ctx {
36421 crypto_completion_t complete;
36422-};
36423+} __no_const;
36424
36425 static void cryptd_queue_worker(struct work_struct *work);
36426
36427diff --git a/crypto/pcrypt.c b/crypto/pcrypt.c
36428index c305d41..a96de79 100644
36429--- a/crypto/pcrypt.c
36430+++ b/crypto/pcrypt.c
36431@@ -440,7 +440,7 @@ static int pcrypt_sysfs_add(struct padata_instance *pinst, const char *name)
36432 int ret;
36433
36434 pinst->kobj.kset = pcrypt_kset;
36435- ret = kobject_add(&pinst->kobj, NULL, name);
36436+ ret = kobject_add(&pinst->kobj, NULL, "%s", name);
36437 if (!ret)
36438 kobject_uevent(&pinst->kobj, KOBJ_ADD);
36439
36440diff --git a/crypto/zlib.c b/crypto/zlib.c
36441index 0eefa9d..0fa3d29 100644
36442--- a/crypto/zlib.c
36443+++ b/crypto/zlib.c
36444@@ -95,10 +95,10 @@ static int zlib_compress_setup(struct crypto_pcomp *tfm, void *params,
36445 zlib_comp_exit(ctx);
36446
36447 window_bits = tb[ZLIB_COMP_WINDOWBITS]
36448- ? nla_get_u32(tb[ZLIB_COMP_WINDOWBITS])
36449+ ? nla_get_s32(tb[ZLIB_COMP_WINDOWBITS])
36450 : MAX_WBITS;
36451 mem_level = tb[ZLIB_COMP_MEMLEVEL]
36452- ? nla_get_u32(tb[ZLIB_COMP_MEMLEVEL])
36453+ ? nla_get_s32(tb[ZLIB_COMP_MEMLEVEL])
36454 : DEF_MEM_LEVEL;
36455
36456 workspacesize = zlib_deflate_workspacesize(window_bits, mem_level);
36457diff --git a/drivers/acpi/acpica/hwxfsleep.c b/drivers/acpi/acpica/hwxfsleep.c
36458index 3b37676..898edfa 100644
36459--- a/drivers/acpi/acpica/hwxfsleep.c
36460+++ b/drivers/acpi/acpica/hwxfsleep.c
36461@@ -63,11 +63,12 @@ static acpi_status acpi_hw_sleep_dispatch(u8 sleep_state, u32 function_id);
36462 /* Legacy functions are optional, based upon ACPI_REDUCED_HARDWARE */
36463
36464 static struct acpi_sleep_functions acpi_sleep_dispatch[] = {
36465- {ACPI_HW_OPTIONAL_FUNCTION(acpi_hw_legacy_sleep),
36466- acpi_hw_extended_sleep},
36467- {ACPI_HW_OPTIONAL_FUNCTION(acpi_hw_legacy_wake_prep),
36468- acpi_hw_extended_wake_prep},
36469- {ACPI_HW_OPTIONAL_FUNCTION(acpi_hw_legacy_wake), acpi_hw_extended_wake}
36470+ {.legacy_function = ACPI_HW_OPTIONAL_FUNCTION(acpi_hw_legacy_sleep),
36471+ .extended_function = acpi_hw_extended_sleep},
36472+ {.legacy_function = ACPI_HW_OPTIONAL_FUNCTION(acpi_hw_legacy_wake_prep),
36473+ .extended_function = acpi_hw_extended_wake_prep},
36474+ {.legacy_function = ACPI_HW_OPTIONAL_FUNCTION(acpi_hw_legacy_wake),
36475+ .extended_function = acpi_hw_extended_wake}
36476 };
36477
36478 /*
36479diff --git a/drivers/acpi/apei/apei-internal.h b/drivers/acpi/apei/apei-internal.h
36480index 16129c7..8b675cd 100644
36481--- a/drivers/acpi/apei/apei-internal.h
36482+++ b/drivers/acpi/apei/apei-internal.h
36483@@ -19,7 +19,7 @@ typedef int (*apei_exec_ins_func_t)(struct apei_exec_context *ctx,
36484 struct apei_exec_ins_type {
36485 u32 flags;
36486 apei_exec_ins_func_t run;
36487-};
36488+} __do_const;
36489
36490 struct apei_exec_context {
36491 u32 ip;
36492diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c
36493index e82d097..0c855c1 100644
36494--- a/drivers/acpi/apei/ghes.c
36495+++ b/drivers/acpi/apei/ghes.c
36496@@ -478,7 +478,7 @@ static void __ghes_print_estatus(const char *pfx,
36497 const struct acpi_hest_generic *generic,
36498 const struct acpi_hest_generic_status *estatus)
36499 {
36500- static atomic_t seqno;
36501+ static atomic_unchecked_t seqno;
36502 unsigned int curr_seqno;
36503 char pfx_seq[64];
36504
36505@@ -489,7 +489,7 @@ static void __ghes_print_estatus(const char *pfx,
36506 else
36507 pfx = KERN_ERR;
36508 }
36509- curr_seqno = atomic_inc_return(&seqno);
36510+ curr_seqno = atomic_inc_return_unchecked(&seqno);
36511 snprintf(pfx_seq, sizeof(pfx_seq), "%s{%u}" HW_ERR, pfx, curr_seqno);
36512 printk("%s""Hardware error from APEI Generic Hardware Error Source: %d\n",
36513 pfx_seq, generic->header.source_id);
36514diff --git a/drivers/acpi/bgrt.c b/drivers/acpi/bgrt.c
36515index a83e3c6..c3d617f 100644
36516--- a/drivers/acpi/bgrt.c
36517+++ b/drivers/acpi/bgrt.c
36518@@ -86,8 +86,10 @@ static int __init bgrt_init(void)
36519 if (!bgrt_image)
36520 return -ENODEV;
36521
36522- bin_attr_image.private = bgrt_image;
36523- bin_attr_image.size = bgrt_image_size;
36524+ pax_open_kernel();
36525+ *(void **)&bin_attr_image.private = bgrt_image;
36526+ *(size_t *)&bin_attr_image.size = bgrt_image_size;
36527+ pax_close_kernel();
36528
36529 bgrt_kobj = kobject_create_and_add("bgrt", acpi_kobj);
36530 if (!bgrt_kobj)
36531diff --git a/drivers/acpi/blacklist.c b/drivers/acpi/blacklist.c
36532index 9b693d5..8953d54 100644
36533--- a/drivers/acpi/blacklist.c
36534+++ b/drivers/acpi/blacklist.c
36535@@ -51,7 +51,7 @@ struct acpi_blacklist_item {
36536 u32 is_critical_error;
36537 };
36538
36539-static struct dmi_system_id acpi_osi_dmi_table[] __initdata;
36540+static const struct dmi_system_id acpi_osi_dmi_table[] __initconst;
36541
36542 /*
36543 * POLICY: If *anything* doesn't work, put it on the blacklist.
36544@@ -163,7 +163,7 @@ static int __init dmi_disable_osi_win8(const struct dmi_system_id *d)
36545 return 0;
36546 }
36547
36548-static struct dmi_system_id acpi_osi_dmi_table[] __initdata = {
36549+static const struct dmi_system_id acpi_osi_dmi_table[] __initconst = {
36550 {
36551 .callback = dmi_disable_osi_vista,
36552 .ident = "Fujitsu Siemens",
36553diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
36554index 8b67bd0..b59593e 100644
36555--- a/drivers/acpi/bus.c
36556+++ b/drivers/acpi/bus.c
36557@@ -67,7 +67,7 @@ static int set_copy_dsdt(const struct dmi_system_id *id)
36558 }
36559 #endif
36560
36561-static struct dmi_system_id dsdt_dmi_table[] __initdata = {
36562+static const struct dmi_system_id dsdt_dmi_table[] __initconst = {
36563 /*
36564 * Invoke DSDT corruption work-around on all Toshiba Satellite.
36565 * https://bugzilla.kernel.org/show_bug.cgi?id=14679
36566@@ -83,7 +83,7 @@ static struct dmi_system_id dsdt_dmi_table[] __initdata = {
36567 {}
36568 };
36569 #else
36570-static struct dmi_system_id dsdt_dmi_table[] __initdata = {
36571+static const struct dmi_system_id dsdt_dmi_table[] __initconst = {
36572 {}
36573 };
36574 #endif
36575diff --git a/drivers/acpi/custom_method.c b/drivers/acpi/custom_method.c
36576index c68e724..e863008 100644
36577--- a/drivers/acpi/custom_method.c
36578+++ b/drivers/acpi/custom_method.c
36579@@ -29,6 +29,10 @@ static ssize_t cm_write(struct file *file, const char __user * user_buf,
36580 struct acpi_table_header table;
36581 acpi_status status;
36582
36583+#ifdef CONFIG_GRKERNSEC_KMEM
36584+ return -EPERM;
36585+#endif
36586+
36587 if (!(*ppos)) {
36588 /* parse the table header to get the table length */
36589 if (count <= sizeof(struct acpi_table_header))
36590diff --git a/drivers/acpi/device_pm.c b/drivers/acpi/device_pm.c
36591index 735db11..91e07ff 100644
36592--- a/drivers/acpi/device_pm.c
36593+++ b/drivers/acpi/device_pm.c
36594@@ -1025,6 +1025,8 @@ EXPORT_SYMBOL_GPL(acpi_subsys_freeze);
36595
36596 #endif /* CONFIG_PM_SLEEP */
36597
36598+static void acpi_dev_pm_detach(struct device *dev, bool power_off);
36599+
36600 static struct dev_pm_domain acpi_general_pm_domain = {
36601 .ops = {
36602 .runtime_suspend = acpi_subsys_runtime_suspend,
36603@@ -1041,6 +1043,7 @@ static struct dev_pm_domain acpi_general_pm_domain = {
36604 .restore_early = acpi_subsys_resume_early,
36605 #endif
36606 },
36607+ .detach = acpi_dev_pm_detach
36608 };
36609
36610 /**
36611@@ -1110,7 +1113,6 @@ int acpi_dev_pm_attach(struct device *dev, bool power_on)
36612 acpi_device_wakeup(adev, ACPI_STATE_S0, false);
36613 }
36614
36615- dev->pm_domain->detach = acpi_dev_pm_detach;
36616 return 0;
36617 }
36618 EXPORT_SYMBOL_GPL(acpi_dev_pm_attach);
36619diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
36620index a8dd2f7..e15950e 100644
36621--- a/drivers/acpi/ec.c
36622+++ b/drivers/acpi/ec.c
36623@@ -1242,7 +1242,7 @@ static int ec_clear_on_resume(const struct dmi_system_id *id)
36624 return 0;
36625 }
36626
36627-static struct dmi_system_id ec_dmi_table[] __initdata = {
36628+static const struct dmi_system_id ec_dmi_table[] __initconst = {
36629 {
36630 ec_skip_dsdt_scan, "Compal JFL92", {
36631 DMI_MATCH(DMI_BIOS_VENDOR, "COMPAL"),
36632diff --git a/drivers/acpi/pci_slot.c b/drivers/acpi/pci_slot.c
36633index 139d9e4..9a9d799 100644
36634--- a/drivers/acpi/pci_slot.c
36635+++ b/drivers/acpi/pci_slot.c
36636@@ -195,7 +195,7 @@ static int do_sta_before_sun(const struct dmi_system_id *d)
36637 return 0;
36638 }
36639
36640-static struct dmi_system_id acpi_pci_slot_dmi_table[] __initdata = {
36641+static const struct dmi_system_id acpi_pci_slot_dmi_table[] __initconst = {
36642 /*
36643 * Fujitsu Primequest machines will return 1023 to indicate an
36644 * error if the _SUN method is evaluated on SxFy objects that
36645diff --git a/drivers/acpi/processor_driver.c b/drivers/acpi/processor_driver.c
36646index d9f7158..168e742 100644
36647--- a/drivers/acpi/processor_driver.c
36648+++ b/drivers/acpi/processor_driver.c
36649@@ -159,7 +159,7 @@ static int acpi_cpu_soft_notify(struct notifier_block *nfb,
36650 return NOTIFY_OK;
36651 }
36652
36653-static struct notifier_block __refdata acpi_cpu_notifier = {
36654+static struct notifier_block __refconst acpi_cpu_notifier = {
36655 .notifier_call = acpi_cpu_soft_notify,
36656 };
36657
36658diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
36659index f98db0b..8309c83 100644
36660--- a/drivers/acpi/processor_idle.c
36661+++ b/drivers/acpi/processor_idle.c
36662@@ -912,7 +912,7 @@ static int acpi_processor_setup_cpuidle_states(struct acpi_processor *pr)
36663 {
36664 int i, count = CPUIDLE_DRIVER_STATE_START;
36665 struct acpi_processor_cx *cx;
36666- struct cpuidle_state *state;
36667+ cpuidle_state_no_const *state;
36668 struct cpuidle_driver *drv = &acpi_idle_driver;
36669
36670 if (!pr->flags.power_setup_done)
36671diff --git a/drivers/acpi/processor_pdc.c b/drivers/acpi/processor_pdc.c
36672index e5dd808..1eceed1 100644
36673--- a/drivers/acpi/processor_pdc.c
36674+++ b/drivers/acpi/processor_pdc.c
36675@@ -176,7 +176,7 @@ static int __init set_no_mwait(const struct dmi_system_id *id)
36676 return 0;
36677 }
36678
36679-static struct dmi_system_id processor_idle_dmi_table[] __initdata = {
36680+static const struct dmi_system_id processor_idle_dmi_table[] __initconst = {
36681 {
36682 set_no_mwait, "Extensa 5220", {
36683 DMI_MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies LTD"),
36684diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
36685index 7f251dd..47b262c 100644
36686--- a/drivers/acpi/sleep.c
36687+++ b/drivers/acpi/sleep.c
36688@@ -148,7 +148,7 @@ static int __init init_nvs_nosave(const struct dmi_system_id *d)
36689 return 0;
36690 }
36691
36692-static struct dmi_system_id acpisleep_dmi_table[] __initdata = {
36693+static const struct dmi_system_id acpisleep_dmi_table[] __initconst = {
36694 {
36695 .callback = init_old_suspend_ordering,
36696 .ident = "Abit KN9 (nForce4 variant)",
36697diff --git a/drivers/acpi/sysfs.c b/drivers/acpi/sysfs.c
36698index 13e577c..cef11ee 100644
36699--- a/drivers/acpi/sysfs.c
36700+++ b/drivers/acpi/sysfs.c
36701@@ -423,11 +423,11 @@ static u32 num_counters;
36702 static struct attribute **all_attrs;
36703 static u32 acpi_gpe_count;
36704
36705-static struct attribute_group interrupt_stats_attr_group = {
36706+static attribute_group_no_const interrupt_stats_attr_group = {
36707 .name = "interrupts",
36708 };
36709
36710-static struct kobj_attribute *counter_attrs;
36711+static kobj_attribute_no_const *counter_attrs;
36712
36713 static void delete_gpe_attr_array(void)
36714 {
36715diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
36716index d24fa19..782f1e6 100644
36717--- a/drivers/acpi/thermal.c
36718+++ b/drivers/acpi/thermal.c
36719@@ -1209,7 +1209,7 @@ static int thermal_psv(const struct dmi_system_id *d) {
36720 return 0;
36721 }
36722
36723-static struct dmi_system_id thermal_dmi_table[] __initdata = {
36724+static const struct dmi_system_id thermal_dmi_table[] __initconst = {
36725 /*
36726 * Award BIOS on this AOpen makes thermal control almost worthless.
36727 * http://bugzilla.kernel.org/show_bug.cgi?id=8842
36728diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
36729index 26eb70c..4d66ddf 100644
36730--- a/drivers/acpi/video.c
36731+++ b/drivers/acpi/video.c
36732@@ -418,7 +418,7 @@ static int __init video_disable_native_backlight(const struct dmi_system_id *d)
36733 return 0;
36734 }
36735
36736-static struct dmi_system_id video_dmi_table[] __initdata = {
36737+static const struct dmi_system_id video_dmi_table[] __initconst = {
36738 /*
36739 * Broken _BQC workaround http://bugzilla.kernel.org/show_bug.cgi?id=13121
36740 */
36741diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c
36742index 287c4ba..6a600bc 100644
36743--- a/drivers/ata/libahci.c
36744+++ b/drivers/ata/libahci.c
36745@@ -1252,7 +1252,7 @@ int ahci_kick_engine(struct ata_port *ap)
36746 }
36747 EXPORT_SYMBOL_GPL(ahci_kick_engine);
36748
36749-static int ahci_exec_polled_cmd(struct ata_port *ap, int pmp,
36750+static int __intentional_overflow(-1) ahci_exec_polled_cmd(struct ata_port *ap, int pmp,
36751 struct ata_taskfile *tf, int is_cmd, u16 flags,
36752 unsigned long timeout_msec)
36753 {
36754diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
36755index 87b4b7f..d876fbd 100644
36756--- a/drivers/ata/libata-core.c
36757+++ b/drivers/ata/libata-core.c
36758@@ -99,7 +99,7 @@ static unsigned int ata_dev_set_xfermode(struct ata_device *dev);
36759 static void ata_dev_xfermask(struct ata_device *dev);
36760 static unsigned long ata_dev_blacklisted(const struct ata_device *dev);
36761
36762-atomic_t ata_print_id = ATOMIC_INIT(0);
36763+atomic_unchecked_t ata_print_id = ATOMIC_INIT(0);
36764
36765 struct ata_force_param {
36766 const char *name;
36767@@ -4780,7 +4780,7 @@ void ata_qc_free(struct ata_queued_cmd *qc)
36768 struct ata_port *ap;
36769 unsigned int tag;
36770
36771- WARN_ON_ONCE(qc == NULL); /* ata_qc_from_tag _might_ return NULL */
36772+ BUG_ON(qc == NULL); /* ata_qc_from_tag _might_ return NULL */
36773 ap = qc->ap;
36774
36775 qc->flags = 0;
36776@@ -4797,7 +4797,7 @@ void __ata_qc_complete(struct ata_queued_cmd *qc)
36777 struct ata_port *ap;
36778 struct ata_link *link;
36779
36780- WARN_ON_ONCE(qc == NULL); /* ata_qc_from_tag _might_ return NULL */
36781+ BUG_ON(qc == NULL); /* ata_qc_from_tag _might_ return NULL */
36782 WARN_ON_ONCE(!(qc->flags & ATA_QCFLAG_ACTIVE));
36783 ap = qc->ap;
36784 link = qc->dev->link;
36785@@ -5901,6 +5901,7 @@ static void ata_finalize_port_ops(struct ata_port_operations *ops)
36786 return;
36787
36788 spin_lock(&lock);
36789+ pax_open_kernel();
36790
36791 for (cur = ops->inherits; cur; cur = cur->inherits) {
36792 void **inherit = (void **)cur;
36793@@ -5914,8 +5915,9 @@ static void ata_finalize_port_ops(struct ata_port_operations *ops)
36794 if (IS_ERR(*pp))
36795 *pp = NULL;
36796
36797- ops->inherits = NULL;
36798+ *(struct ata_port_operations **)&ops->inherits = NULL;
36799
36800+ pax_close_kernel();
36801 spin_unlock(&lock);
36802 }
36803
36804@@ -6111,7 +6113,7 @@ int ata_host_register(struct ata_host *host, struct scsi_host_template *sht)
36805
36806 /* give ports names and add SCSI hosts */
36807 for (i = 0; i < host->n_ports; i++) {
36808- host->ports[i]->print_id = atomic_inc_return(&ata_print_id);
36809+ host->ports[i]->print_id = atomic_inc_return_unchecked(&ata_print_id);
36810 host->ports[i]->local_port_no = i + 1;
36811 }
36812
36813diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
36814index b061ba2..fdcd85f 100644
36815--- a/drivers/ata/libata-scsi.c
36816+++ b/drivers/ata/libata-scsi.c
36817@@ -4172,7 +4172,7 @@ int ata_sas_port_init(struct ata_port *ap)
36818
36819 if (rc)
36820 return rc;
36821- ap->print_id = atomic_inc_return(&ata_print_id);
36822+ ap->print_id = atomic_inc_return_unchecked(&ata_print_id);
36823 return 0;
36824 }
36825 EXPORT_SYMBOL_GPL(ata_sas_port_init);
36826diff --git a/drivers/ata/libata.h b/drivers/ata/libata.h
36827index f840ca1..edd6ef3 100644
36828--- a/drivers/ata/libata.h
36829+++ b/drivers/ata/libata.h
36830@@ -53,7 +53,7 @@ enum {
36831 ATA_DNXFER_QUIET = (1 << 31),
36832 };
36833
36834-extern atomic_t ata_print_id;
36835+extern atomic_unchecked_t ata_print_id;
36836 extern int atapi_passthru16;
36837 extern int libata_fua;
36838 extern int libata_noacpi;
36839diff --git a/drivers/ata/pata_arasan_cf.c b/drivers/ata/pata_arasan_cf.c
36840index a9b0c82..207d97d 100644
36841--- a/drivers/ata/pata_arasan_cf.c
36842+++ b/drivers/ata/pata_arasan_cf.c
36843@@ -865,7 +865,9 @@ static int arasan_cf_probe(struct platform_device *pdev)
36844 /* Handle platform specific quirks */
36845 if (quirk) {
36846 if (quirk & CF_BROKEN_PIO) {
36847- ap->ops->set_piomode = NULL;
36848+ pax_open_kernel();
36849+ *(void **)&ap->ops->set_piomode = NULL;
36850+ pax_close_kernel();
36851 ap->pio_mask = 0;
36852 }
36853 if (quirk & CF_BROKEN_MWDMA)
36854diff --git a/drivers/atm/adummy.c b/drivers/atm/adummy.c
36855index f9b983a..887b9d8 100644
36856--- a/drivers/atm/adummy.c
36857+++ b/drivers/atm/adummy.c
36858@@ -114,7 +114,7 @@ adummy_send(struct atm_vcc *vcc, struct sk_buff *skb)
36859 vcc->pop(vcc, skb);
36860 else
36861 dev_kfree_skb_any(skb);
36862- atomic_inc(&vcc->stats->tx);
36863+ atomic_inc_unchecked(&vcc->stats->tx);
36864
36865 return 0;
36866 }
36867diff --git a/drivers/atm/ambassador.c b/drivers/atm/ambassador.c
36868index f1a9198..f466a4a 100644
36869--- a/drivers/atm/ambassador.c
36870+++ b/drivers/atm/ambassador.c
36871@@ -454,7 +454,7 @@ static void tx_complete (amb_dev * dev, tx_out * tx) {
36872 PRINTD (DBG_FLOW|DBG_TX, "tx_complete %p %p", dev, tx);
36873
36874 // VC layer stats
36875- atomic_inc(&ATM_SKB(skb)->vcc->stats->tx);
36876+ atomic_inc_unchecked(&ATM_SKB(skb)->vcc->stats->tx);
36877
36878 // free the descriptor
36879 kfree (tx_descr);
36880@@ -495,7 +495,7 @@ static void rx_complete (amb_dev * dev, rx_out * rx) {
36881 dump_skb ("<<<", vc, skb);
36882
36883 // VC layer stats
36884- atomic_inc(&atm_vcc->stats->rx);
36885+ atomic_inc_unchecked(&atm_vcc->stats->rx);
36886 __net_timestamp(skb);
36887 // end of our responsibility
36888 atm_vcc->push (atm_vcc, skb);
36889@@ -510,7 +510,7 @@ static void rx_complete (amb_dev * dev, rx_out * rx) {
36890 } else {
36891 PRINTK (KERN_INFO, "dropped over-size frame");
36892 // should we count this?
36893- atomic_inc(&atm_vcc->stats->rx_drop);
36894+ atomic_inc_unchecked(&atm_vcc->stats->rx_drop);
36895 }
36896
36897 } else {
36898@@ -1338,7 +1338,7 @@ static int amb_send (struct atm_vcc * atm_vcc, struct sk_buff * skb) {
36899 }
36900
36901 if (check_area (skb->data, skb->len)) {
36902- atomic_inc(&atm_vcc->stats->tx_err);
36903+ atomic_inc_unchecked(&atm_vcc->stats->tx_err);
36904 return -ENOMEM; // ?
36905 }
36906
36907diff --git a/drivers/atm/atmtcp.c b/drivers/atm/atmtcp.c
36908index 480fa6f..947067c 100644
36909--- a/drivers/atm/atmtcp.c
36910+++ b/drivers/atm/atmtcp.c
36911@@ -206,7 +206,7 @@ static int atmtcp_v_send(struct atm_vcc *vcc,struct sk_buff *skb)
36912 if (vcc->pop) vcc->pop(vcc,skb);
36913 else dev_kfree_skb(skb);
36914 if (dev_data) return 0;
36915- atomic_inc(&vcc->stats->tx_err);
36916+ atomic_inc_unchecked(&vcc->stats->tx_err);
36917 return -ENOLINK;
36918 }
36919 size = skb->len+sizeof(struct atmtcp_hdr);
36920@@ -214,7 +214,7 @@ static int atmtcp_v_send(struct atm_vcc *vcc,struct sk_buff *skb)
36921 if (!new_skb) {
36922 if (vcc->pop) vcc->pop(vcc,skb);
36923 else dev_kfree_skb(skb);
36924- atomic_inc(&vcc->stats->tx_err);
36925+ atomic_inc_unchecked(&vcc->stats->tx_err);
36926 return -ENOBUFS;
36927 }
36928 hdr = (void *) skb_put(new_skb,sizeof(struct atmtcp_hdr));
36929@@ -225,8 +225,8 @@ static int atmtcp_v_send(struct atm_vcc *vcc,struct sk_buff *skb)
36930 if (vcc->pop) vcc->pop(vcc,skb);
36931 else dev_kfree_skb(skb);
36932 out_vcc->push(out_vcc,new_skb);
36933- atomic_inc(&vcc->stats->tx);
36934- atomic_inc(&out_vcc->stats->rx);
36935+ atomic_inc_unchecked(&vcc->stats->tx);
36936+ atomic_inc_unchecked(&out_vcc->stats->rx);
36937 return 0;
36938 }
36939
36940@@ -300,7 +300,7 @@ static int atmtcp_c_send(struct atm_vcc *vcc,struct sk_buff *skb)
36941 read_unlock(&vcc_sklist_lock);
36942 if (!out_vcc) {
36943 result = -EUNATCH;
36944- atomic_inc(&vcc->stats->tx_err);
36945+ atomic_inc_unchecked(&vcc->stats->tx_err);
36946 goto done;
36947 }
36948 skb_pull(skb,sizeof(struct atmtcp_hdr));
36949@@ -312,8 +312,8 @@ static int atmtcp_c_send(struct atm_vcc *vcc,struct sk_buff *skb)
36950 __net_timestamp(new_skb);
36951 skb_copy_from_linear_data(skb, skb_put(new_skb, skb->len), skb->len);
36952 out_vcc->push(out_vcc,new_skb);
36953- atomic_inc(&vcc->stats->tx);
36954- atomic_inc(&out_vcc->stats->rx);
36955+ atomic_inc_unchecked(&vcc->stats->tx);
36956+ atomic_inc_unchecked(&out_vcc->stats->rx);
36957 done:
36958 if (vcc->pop) vcc->pop(vcc,skb);
36959 else dev_kfree_skb(skb);
36960diff --git a/drivers/atm/eni.c b/drivers/atm/eni.c
36961index 6339efd..2b441d5 100644
36962--- a/drivers/atm/eni.c
36963+++ b/drivers/atm/eni.c
36964@@ -525,7 +525,7 @@ static int rx_aal0(struct atm_vcc *vcc)
36965 DPRINTK(DEV_LABEL "(itf %d): trashing empty cell\n",
36966 vcc->dev->number);
36967 length = 0;
36968- atomic_inc(&vcc->stats->rx_err);
36969+ atomic_inc_unchecked(&vcc->stats->rx_err);
36970 }
36971 else {
36972 length = ATM_CELL_SIZE-1; /* no HEC */
36973@@ -580,7 +580,7 @@ static int rx_aal5(struct atm_vcc *vcc)
36974 size);
36975 }
36976 eff = length = 0;
36977- atomic_inc(&vcc->stats->rx_err);
36978+ atomic_inc_unchecked(&vcc->stats->rx_err);
36979 }
36980 else {
36981 size = (descr & MID_RED_COUNT)*(ATM_CELL_PAYLOAD >> 2);
36982@@ -597,7 +597,7 @@ static int rx_aal5(struct atm_vcc *vcc)
36983 "(VCI=%d,length=%ld,size=%ld (descr 0x%lx))\n",
36984 vcc->dev->number,vcc->vci,length,size << 2,descr);
36985 length = eff = 0;
36986- atomic_inc(&vcc->stats->rx_err);
36987+ atomic_inc_unchecked(&vcc->stats->rx_err);
36988 }
36989 }
36990 skb = eff ? atm_alloc_charge(vcc,eff << 2,GFP_ATOMIC) : NULL;
36991@@ -770,7 +770,7 @@ rx_dequeued++;
36992 vcc->push(vcc,skb);
36993 pushed++;
36994 }
36995- atomic_inc(&vcc->stats->rx);
36996+ atomic_inc_unchecked(&vcc->stats->rx);
36997 }
36998 wake_up(&eni_dev->rx_wait);
36999 }
37000@@ -1230,7 +1230,7 @@ static void dequeue_tx(struct atm_dev *dev)
37001 DMA_TO_DEVICE);
37002 if (vcc->pop) vcc->pop(vcc,skb);
37003 else dev_kfree_skb_irq(skb);
37004- atomic_inc(&vcc->stats->tx);
37005+ atomic_inc_unchecked(&vcc->stats->tx);
37006 wake_up(&eni_dev->tx_wait);
37007 dma_complete++;
37008 }
37009diff --git a/drivers/atm/firestream.c b/drivers/atm/firestream.c
37010index 82f2ae0..f205c02 100644
37011--- a/drivers/atm/firestream.c
37012+++ b/drivers/atm/firestream.c
37013@@ -749,7 +749,7 @@ static void process_txdone_queue (struct fs_dev *dev, struct queue *q)
37014 }
37015 }
37016
37017- atomic_inc(&ATM_SKB(skb)->vcc->stats->tx);
37018+ atomic_inc_unchecked(&ATM_SKB(skb)->vcc->stats->tx);
37019
37020 fs_dprintk (FS_DEBUG_TXMEM, "i");
37021 fs_dprintk (FS_DEBUG_ALLOC, "Free t-skb: %p\n", skb);
37022@@ -816,7 +816,7 @@ static void process_incoming (struct fs_dev *dev, struct queue *q)
37023 #endif
37024 skb_put (skb, qe->p1 & 0xffff);
37025 ATM_SKB(skb)->vcc = atm_vcc;
37026- atomic_inc(&atm_vcc->stats->rx);
37027+ atomic_inc_unchecked(&atm_vcc->stats->rx);
37028 __net_timestamp(skb);
37029 fs_dprintk (FS_DEBUG_ALLOC, "Free rec-skb: %p (pushed)\n", skb);
37030 atm_vcc->push (atm_vcc, skb);
37031@@ -837,12 +837,12 @@ static void process_incoming (struct fs_dev *dev, struct queue *q)
37032 kfree (pe);
37033 }
37034 if (atm_vcc)
37035- atomic_inc(&atm_vcc->stats->rx_drop);
37036+ atomic_inc_unchecked(&atm_vcc->stats->rx_drop);
37037 break;
37038 case 0x1f: /* Reassembly abort: no buffers. */
37039 /* Silently increment error counter. */
37040 if (atm_vcc)
37041- atomic_inc(&atm_vcc->stats->rx_drop);
37042+ atomic_inc_unchecked(&atm_vcc->stats->rx_drop);
37043 break;
37044 default: /* Hmm. Haven't written the code to handle the others yet... -- REW */
37045 printk (KERN_WARNING "Don't know what to do with RX status %x: %s.\n",
37046diff --git a/drivers/atm/fore200e.c b/drivers/atm/fore200e.c
37047index 75dde90..4309ead 100644
37048--- a/drivers/atm/fore200e.c
37049+++ b/drivers/atm/fore200e.c
37050@@ -932,9 +932,9 @@ fore200e_tx_irq(struct fore200e* fore200e)
37051 #endif
37052 /* check error condition */
37053 if (*entry->status & STATUS_ERROR)
37054- atomic_inc(&vcc->stats->tx_err);
37055+ atomic_inc_unchecked(&vcc->stats->tx_err);
37056 else
37057- atomic_inc(&vcc->stats->tx);
37058+ atomic_inc_unchecked(&vcc->stats->tx);
37059 }
37060 }
37061
37062@@ -1083,7 +1083,7 @@ fore200e_push_rpd(struct fore200e* fore200e, struct atm_vcc* vcc, struct rpd* rp
37063 if (skb == NULL) {
37064 DPRINTK(2, "unable to alloc new skb, rx PDU length = %d\n", pdu_len);
37065
37066- atomic_inc(&vcc->stats->rx_drop);
37067+ atomic_inc_unchecked(&vcc->stats->rx_drop);
37068 return -ENOMEM;
37069 }
37070
37071@@ -1126,14 +1126,14 @@ fore200e_push_rpd(struct fore200e* fore200e, struct atm_vcc* vcc, struct rpd* rp
37072
37073 dev_kfree_skb_any(skb);
37074
37075- atomic_inc(&vcc->stats->rx_drop);
37076+ atomic_inc_unchecked(&vcc->stats->rx_drop);
37077 return -ENOMEM;
37078 }
37079
37080 ASSERT(atomic_read(&sk_atm(vcc)->sk_wmem_alloc) >= 0);
37081
37082 vcc->push(vcc, skb);
37083- atomic_inc(&vcc->stats->rx);
37084+ atomic_inc_unchecked(&vcc->stats->rx);
37085
37086 ASSERT(atomic_read(&sk_atm(vcc)->sk_wmem_alloc) >= 0);
37087
37088@@ -1211,7 +1211,7 @@ fore200e_rx_irq(struct fore200e* fore200e)
37089 DPRINTK(2, "damaged PDU on %d.%d.%d\n",
37090 fore200e->atm_dev->number,
37091 entry->rpd->atm_header.vpi, entry->rpd->atm_header.vci);
37092- atomic_inc(&vcc->stats->rx_err);
37093+ atomic_inc_unchecked(&vcc->stats->rx_err);
37094 }
37095 }
37096
37097@@ -1656,7 +1656,7 @@ fore200e_send(struct atm_vcc *vcc, struct sk_buff *skb)
37098 goto retry_here;
37099 }
37100
37101- atomic_inc(&vcc->stats->tx_err);
37102+ atomic_inc_unchecked(&vcc->stats->tx_err);
37103
37104 fore200e->tx_sat++;
37105 DPRINTK(2, "tx queue of device %s is saturated, PDU dropped - heartbeat is %08x\n",
37106diff --git a/drivers/atm/he.c b/drivers/atm/he.c
37107index 93dca2e..c5daa69 100644
37108--- a/drivers/atm/he.c
37109+++ b/drivers/atm/he.c
37110@@ -1692,7 +1692,7 @@ he_service_rbrq(struct he_dev *he_dev, int group)
37111
37112 if (RBRQ_HBUF_ERR(he_dev->rbrq_head)) {
37113 hprintk("HBUF_ERR! (cid 0x%x)\n", cid);
37114- atomic_inc(&vcc->stats->rx_drop);
37115+ atomic_inc_unchecked(&vcc->stats->rx_drop);
37116 goto return_host_buffers;
37117 }
37118
37119@@ -1719,7 +1719,7 @@ he_service_rbrq(struct he_dev *he_dev, int group)
37120 RBRQ_LEN_ERR(he_dev->rbrq_head)
37121 ? "LEN_ERR" : "",
37122 vcc->vpi, vcc->vci);
37123- atomic_inc(&vcc->stats->rx_err);
37124+ atomic_inc_unchecked(&vcc->stats->rx_err);
37125 goto return_host_buffers;
37126 }
37127
37128@@ -1771,7 +1771,7 @@ he_service_rbrq(struct he_dev *he_dev, int group)
37129 vcc->push(vcc, skb);
37130 spin_lock(&he_dev->global_lock);
37131
37132- atomic_inc(&vcc->stats->rx);
37133+ atomic_inc_unchecked(&vcc->stats->rx);
37134
37135 return_host_buffers:
37136 ++pdus_assembled;
37137@@ -2097,7 +2097,7 @@ __enqueue_tpd(struct he_dev *he_dev, struct he_tpd *tpd, unsigned cid)
37138 tpd->vcc->pop(tpd->vcc, tpd->skb);
37139 else
37140 dev_kfree_skb_any(tpd->skb);
37141- atomic_inc(&tpd->vcc->stats->tx_err);
37142+ atomic_inc_unchecked(&tpd->vcc->stats->tx_err);
37143 }
37144 dma_pool_free(he_dev->tpd_pool, tpd, TPD_ADDR(tpd->status));
37145 return;
37146@@ -2509,7 +2509,7 @@ he_send(struct atm_vcc *vcc, struct sk_buff *skb)
37147 vcc->pop(vcc, skb);
37148 else
37149 dev_kfree_skb_any(skb);
37150- atomic_inc(&vcc->stats->tx_err);
37151+ atomic_inc_unchecked(&vcc->stats->tx_err);
37152 return -EINVAL;
37153 }
37154
37155@@ -2520,7 +2520,7 @@ he_send(struct atm_vcc *vcc, struct sk_buff *skb)
37156 vcc->pop(vcc, skb);
37157 else
37158 dev_kfree_skb_any(skb);
37159- atomic_inc(&vcc->stats->tx_err);
37160+ atomic_inc_unchecked(&vcc->stats->tx_err);
37161 return -EINVAL;
37162 }
37163 #endif
37164@@ -2532,7 +2532,7 @@ he_send(struct atm_vcc *vcc, struct sk_buff *skb)
37165 vcc->pop(vcc, skb);
37166 else
37167 dev_kfree_skb_any(skb);
37168- atomic_inc(&vcc->stats->tx_err);
37169+ atomic_inc_unchecked(&vcc->stats->tx_err);
37170 spin_unlock_irqrestore(&he_dev->global_lock, flags);
37171 return -ENOMEM;
37172 }
37173@@ -2574,7 +2574,7 @@ he_send(struct atm_vcc *vcc, struct sk_buff *skb)
37174 vcc->pop(vcc, skb);
37175 else
37176 dev_kfree_skb_any(skb);
37177- atomic_inc(&vcc->stats->tx_err);
37178+ atomic_inc_unchecked(&vcc->stats->tx_err);
37179 spin_unlock_irqrestore(&he_dev->global_lock, flags);
37180 return -ENOMEM;
37181 }
37182@@ -2605,7 +2605,7 @@ he_send(struct atm_vcc *vcc, struct sk_buff *skb)
37183 __enqueue_tpd(he_dev, tpd, cid);
37184 spin_unlock_irqrestore(&he_dev->global_lock, flags);
37185
37186- atomic_inc(&vcc->stats->tx);
37187+ atomic_inc_unchecked(&vcc->stats->tx);
37188
37189 return 0;
37190 }
37191diff --git a/drivers/atm/horizon.c b/drivers/atm/horizon.c
37192index 527bbd5..96570c8 100644
37193--- a/drivers/atm/horizon.c
37194+++ b/drivers/atm/horizon.c
37195@@ -1018,7 +1018,7 @@ static void rx_schedule (hrz_dev * dev, int irq) {
37196 {
37197 struct atm_vcc * vcc = ATM_SKB(skb)->vcc;
37198 // VC layer stats
37199- atomic_inc(&vcc->stats->rx);
37200+ atomic_inc_unchecked(&vcc->stats->rx);
37201 __net_timestamp(skb);
37202 // end of our responsibility
37203 vcc->push (vcc, skb);
37204@@ -1170,7 +1170,7 @@ static void tx_schedule (hrz_dev * const dev, int irq) {
37205 dev->tx_iovec = NULL;
37206
37207 // VC layer stats
37208- atomic_inc(&ATM_SKB(skb)->vcc->stats->tx);
37209+ atomic_inc_unchecked(&ATM_SKB(skb)->vcc->stats->tx);
37210
37211 // free the skb
37212 hrz_kfree_skb (skb);
37213diff --git a/drivers/atm/idt77252.c b/drivers/atm/idt77252.c
37214index 074616b..d6b3d5f 100644
37215--- a/drivers/atm/idt77252.c
37216+++ b/drivers/atm/idt77252.c
37217@@ -811,7 +811,7 @@ drain_scq(struct idt77252_dev *card, struct vc_map *vc)
37218 else
37219 dev_kfree_skb(skb);
37220
37221- atomic_inc(&vcc->stats->tx);
37222+ atomic_inc_unchecked(&vcc->stats->tx);
37223 }
37224
37225 atomic_dec(&scq->used);
37226@@ -1073,13 +1073,13 @@ dequeue_rx(struct idt77252_dev *card, struct rsq_entry *rsqe)
37227 if ((sb = dev_alloc_skb(64)) == NULL) {
37228 printk("%s: Can't allocate buffers for aal0.\n",
37229 card->name);
37230- atomic_add(i, &vcc->stats->rx_drop);
37231+ atomic_add_unchecked(i, &vcc->stats->rx_drop);
37232 break;
37233 }
37234 if (!atm_charge(vcc, sb->truesize)) {
37235 RXPRINTK("%s: atm_charge() dropped aal0 packets.\n",
37236 card->name);
37237- atomic_add(i - 1, &vcc->stats->rx_drop);
37238+ atomic_add_unchecked(i - 1, &vcc->stats->rx_drop);
37239 dev_kfree_skb(sb);
37240 break;
37241 }
37242@@ -1096,7 +1096,7 @@ dequeue_rx(struct idt77252_dev *card, struct rsq_entry *rsqe)
37243 ATM_SKB(sb)->vcc = vcc;
37244 __net_timestamp(sb);
37245 vcc->push(vcc, sb);
37246- atomic_inc(&vcc->stats->rx);
37247+ atomic_inc_unchecked(&vcc->stats->rx);
37248
37249 cell += ATM_CELL_PAYLOAD;
37250 }
37251@@ -1133,13 +1133,13 @@ dequeue_rx(struct idt77252_dev *card, struct rsq_entry *rsqe)
37252 "(CDC: %08x)\n",
37253 card->name, len, rpp->len, readl(SAR_REG_CDC));
37254 recycle_rx_pool_skb(card, rpp);
37255- atomic_inc(&vcc->stats->rx_err);
37256+ atomic_inc_unchecked(&vcc->stats->rx_err);
37257 return;
37258 }
37259 if (stat & SAR_RSQE_CRC) {
37260 RXPRINTK("%s: AAL5 CRC error.\n", card->name);
37261 recycle_rx_pool_skb(card, rpp);
37262- atomic_inc(&vcc->stats->rx_err);
37263+ atomic_inc_unchecked(&vcc->stats->rx_err);
37264 return;
37265 }
37266 if (skb_queue_len(&rpp->queue) > 1) {
37267@@ -1150,7 +1150,7 @@ dequeue_rx(struct idt77252_dev *card, struct rsq_entry *rsqe)
37268 RXPRINTK("%s: Can't alloc RX skb.\n",
37269 card->name);
37270 recycle_rx_pool_skb(card, rpp);
37271- atomic_inc(&vcc->stats->rx_err);
37272+ atomic_inc_unchecked(&vcc->stats->rx_err);
37273 return;
37274 }
37275 if (!atm_charge(vcc, skb->truesize)) {
37276@@ -1169,7 +1169,7 @@ dequeue_rx(struct idt77252_dev *card, struct rsq_entry *rsqe)
37277 __net_timestamp(skb);
37278
37279 vcc->push(vcc, skb);
37280- atomic_inc(&vcc->stats->rx);
37281+ atomic_inc_unchecked(&vcc->stats->rx);
37282
37283 return;
37284 }
37285@@ -1191,7 +1191,7 @@ dequeue_rx(struct idt77252_dev *card, struct rsq_entry *rsqe)
37286 __net_timestamp(skb);
37287
37288 vcc->push(vcc, skb);
37289- atomic_inc(&vcc->stats->rx);
37290+ atomic_inc_unchecked(&vcc->stats->rx);
37291
37292 if (skb->truesize > SAR_FB_SIZE_3)
37293 add_rx_skb(card, 3, SAR_FB_SIZE_3, 1);
37294@@ -1302,14 +1302,14 @@ idt77252_rx_raw(struct idt77252_dev *card)
37295 if (vcc->qos.aal != ATM_AAL0) {
37296 RPRINTK("%s: raw cell for non AAL0 vc %u.%u\n",
37297 card->name, vpi, vci);
37298- atomic_inc(&vcc->stats->rx_drop);
37299+ atomic_inc_unchecked(&vcc->stats->rx_drop);
37300 goto drop;
37301 }
37302
37303 if ((sb = dev_alloc_skb(64)) == NULL) {
37304 printk("%s: Can't allocate buffers for AAL0.\n",
37305 card->name);
37306- atomic_inc(&vcc->stats->rx_err);
37307+ atomic_inc_unchecked(&vcc->stats->rx_err);
37308 goto drop;
37309 }
37310
37311@@ -1328,7 +1328,7 @@ idt77252_rx_raw(struct idt77252_dev *card)
37312 ATM_SKB(sb)->vcc = vcc;
37313 __net_timestamp(sb);
37314 vcc->push(vcc, sb);
37315- atomic_inc(&vcc->stats->rx);
37316+ atomic_inc_unchecked(&vcc->stats->rx);
37317
37318 drop:
37319 skb_pull(queue, 64);
37320@@ -1953,13 +1953,13 @@ idt77252_send_skb(struct atm_vcc *vcc, struct sk_buff *skb, int oam)
37321
37322 if (vc == NULL) {
37323 printk("%s: NULL connection in send().\n", card->name);
37324- atomic_inc(&vcc->stats->tx_err);
37325+ atomic_inc_unchecked(&vcc->stats->tx_err);
37326 dev_kfree_skb(skb);
37327 return -EINVAL;
37328 }
37329 if (!test_bit(VCF_TX, &vc->flags)) {
37330 printk("%s: Trying to transmit on a non-tx VC.\n", card->name);
37331- atomic_inc(&vcc->stats->tx_err);
37332+ atomic_inc_unchecked(&vcc->stats->tx_err);
37333 dev_kfree_skb(skb);
37334 return -EINVAL;
37335 }
37336@@ -1971,14 +1971,14 @@ idt77252_send_skb(struct atm_vcc *vcc, struct sk_buff *skb, int oam)
37337 break;
37338 default:
37339 printk("%s: Unsupported AAL: %d\n", card->name, vcc->qos.aal);
37340- atomic_inc(&vcc->stats->tx_err);
37341+ atomic_inc_unchecked(&vcc->stats->tx_err);
37342 dev_kfree_skb(skb);
37343 return -EINVAL;
37344 }
37345
37346 if (skb_shinfo(skb)->nr_frags != 0) {
37347 printk("%s: No scatter-gather yet.\n", card->name);
37348- atomic_inc(&vcc->stats->tx_err);
37349+ atomic_inc_unchecked(&vcc->stats->tx_err);
37350 dev_kfree_skb(skb);
37351 return -EINVAL;
37352 }
37353@@ -1986,7 +1986,7 @@ idt77252_send_skb(struct atm_vcc *vcc, struct sk_buff *skb, int oam)
37354
37355 err = queue_skb(card, vc, skb, oam);
37356 if (err) {
37357- atomic_inc(&vcc->stats->tx_err);
37358+ atomic_inc_unchecked(&vcc->stats->tx_err);
37359 dev_kfree_skb(skb);
37360 return err;
37361 }
37362@@ -2009,7 +2009,7 @@ idt77252_send_oam(struct atm_vcc *vcc, void *cell, int flags)
37363 skb = dev_alloc_skb(64);
37364 if (!skb) {
37365 printk("%s: Out of memory in send_oam().\n", card->name);
37366- atomic_inc(&vcc->stats->tx_err);
37367+ atomic_inc_unchecked(&vcc->stats->tx_err);
37368 return -ENOMEM;
37369 }
37370 atomic_add(skb->truesize, &sk_atm(vcc)->sk_wmem_alloc);
37371diff --git a/drivers/atm/iphase.c b/drivers/atm/iphase.c
37372index 924f8e2..3375a3e 100644
37373--- a/drivers/atm/iphase.c
37374+++ b/drivers/atm/iphase.c
37375@@ -1145,7 +1145,7 @@ static int rx_pkt(struct atm_dev *dev)
37376 status = (u_short) (buf_desc_ptr->desc_mode);
37377 if (status & (RX_CER | RX_PTE | RX_OFL))
37378 {
37379- atomic_inc(&vcc->stats->rx_err);
37380+ atomic_inc_unchecked(&vcc->stats->rx_err);
37381 IF_ERR(printk("IA: bad packet, dropping it");)
37382 if (status & RX_CER) {
37383 IF_ERR(printk(" cause: packet CRC error\n");)
37384@@ -1168,7 +1168,7 @@ static int rx_pkt(struct atm_dev *dev)
37385 len = dma_addr - buf_addr;
37386 if (len > iadev->rx_buf_sz) {
37387 printk("Over %d bytes sdu received, dropped!!!\n", iadev->rx_buf_sz);
37388- atomic_inc(&vcc->stats->rx_err);
37389+ atomic_inc_unchecked(&vcc->stats->rx_err);
37390 goto out_free_desc;
37391 }
37392
37393@@ -1318,7 +1318,7 @@ static void rx_dle_intr(struct atm_dev *dev)
37394 ia_vcc = INPH_IA_VCC(vcc);
37395 if (ia_vcc == NULL)
37396 {
37397- atomic_inc(&vcc->stats->rx_err);
37398+ atomic_inc_unchecked(&vcc->stats->rx_err);
37399 atm_return(vcc, skb->truesize);
37400 dev_kfree_skb_any(skb);
37401 goto INCR_DLE;
37402@@ -1330,7 +1330,7 @@ static void rx_dle_intr(struct atm_dev *dev)
37403 if ((length > iadev->rx_buf_sz) || (length >
37404 (skb->len - sizeof(struct cpcs_trailer))))
37405 {
37406- atomic_inc(&vcc->stats->rx_err);
37407+ atomic_inc_unchecked(&vcc->stats->rx_err);
37408 IF_ERR(printk("rx_dle_intr: Bad AAL5 trailer %d (skb len %d)",
37409 length, skb->len);)
37410 atm_return(vcc, skb->truesize);
37411@@ -1346,7 +1346,7 @@ static void rx_dle_intr(struct atm_dev *dev)
37412
37413 IF_RX(printk("rx_dle_intr: skb push");)
37414 vcc->push(vcc,skb);
37415- atomic_inc(&vcc->stats->rx);
37416+ atomic_inc_unchecked(&vcc->stats->rx);
37417 iadev->rx_pkt_cnt++;
37418 }
37419 INCR_DLE:
37420@@ -2828,15 +2828,15 @@ static int ia_ioctl(struct atm_dev *dev, unsigned int cmd, void __user *arg)
37421 {
37422 struct k_sonet_stats *stats;
37423 stats = &PRIV(_ia_dev[board])->sonet_stats;
37424- printk("section_bip: %d\n", atomic_read(&stats->section_bip));
37425- printk("line_bip : %d\n", atomic_read(&stats->line_bip));
37426- printk("path_bip : %d\n", atomic_read(&stats->path_bip));
37427- printk("line_febe : %d\n", atomic_read(&stats->line_febe));
37428- printk("path_febe : %d\n", atomic_read(&stats->path_febe));
37429- printk("corr_hcs : %d\n", atomic_read(&stats->corr_hcs));
37430- printk("uncorr_hcs : %d\n", atomic_read(&stats->uncorr_hcs));
37431- printk("tx_cells : %d\n", atomic_read(&stats->tx_cells));
37432- printk("rx_cells : %d\n", atomic_read(&stats->rx_cells));
37433+ printk("section_bip: %d\n", atomic_read_unchecked(&stats->section_bip));
37434+ printk("line_bip : %d\n", atomic_read_unchecked(&stats->line_bip));
37435+ printk("path_bip : %d\n", atomic_read_unchecked(&stats->path_bip));
37436+ printk("line_febe : %d\n", atomic_read_unchecked(&stats->line_febe));
37437+ printk("path_febe : %d\n", atomic_read_unchecked(&stats->path_febe));
37438+ printk("corr_hcs : %d\n", atomic_read_unchecked(&stats->corr_hcs));
37439+ printk("uncorr_hcs : %d\n", atomic_read_unchecked(&stats->uncorr_hcs));
37440+ printk("tx_cells : %d\n", atomic_read_unchecked(&stats->tx_cells));
37441+ printk("rx_cells : %d\n", atomic_read_unchecked(&stats->rx_cells));
37442 }
37443 ia_cmds.status = 0;
37444 break;
37445@@ -2941,7 +2941,7 @@ static int ia_pkt_tx (struct atm_vcc *vcc, struct sk_buff *skb) {
37446 if ((desc == 0) || (desc > iadev->num_tx_desc))
37447 {
37448 IF_ERR(printk(DEV_LABEL "invalid desc for send: %d\n", desc);)
37449- atomic_inc(&vcc->stats->tx);
37450+ atomic_inc_unchecked(&vcc->stats->tx);
37451 if (vcc->pop)
37452 vcc->pop(vcc, skb);
37453 else
37454@@ -3046,14 +3046,14 @@ static int ia_pkt_tx (struct atm_vcc *vcc, struct sk_buff *skb) {
37455 ATM_DESC(skb) = vcc->vci;
37456 skb_queue_tail(&iadev->tx_dma_q, skb);
37457
37458- atomic_inc(&vcc->stats->tx);
37459+ atomic_inc_unchecked(&vcc->stats->tx);
37460 iadev->tx_pkt_cnt++;
37461 /* Increment transaction counter */
37462 writel(2, iadev->dma+IPHASE5575_TX_COUNTER);
37463
37464 #if 0
37465 /* add flow control logic */
37466- if (atomic_read(&vcc->stats->tx) % 20 == 0) {
37467+ if (atomic_read_unchecked(&vcc->stats->tx) % 20 == 0) {
37468 if (iavcc->vc_desc_cnt > 10) {
37469 vcc->tx_quota = vcc->tx_quota * 3 / 4;
37470 printk("Tx1: vcc->tx_quota = %d \n", (u32)vcc->tx_quota );
37471diff --git a/drivers/atm/lanai.c b/drivers/atm/lanai.c
37472index ce43ae3..969de38 100644
37473--- a/drivers/atm/lanai.c
37474+++ b/drivers/atm/lanai.c
37475@@ -1295,7 +1295,7 @@ static void lanai_send_one_aal5(struct lanai_dev *lanai,
37476 vcc_tx_add_aal5_trailer(lvcc, skb->len, 0, 0);
37477 lanai_endtx(lanai, lvcc);
37478 lanai_free_skb(lvcc->tx.atmvcc, skb);
37479- atomic_inc(&lvcc->tx.atmvcc->stats->tx);
37480+ atomic_inc_unchecked(&lvcc->tx.atmvcc->stats->tx);
37481 }
37482
37483 /* Try to fill the buffer - don't call unless there is backlog */
37484@@ -1418,7 +1418,7 @@ static void vcc_rx_aal5(struct lanai_vcc *lvcc, int endptr)
37485 ATM_SKB(skb)->vcc = lvcc->rx.atmvcc;
37486 __net_timestamp(skb);
37487 lvcc->rx.atmvcc->push(lvcc->rx.atmvcc, skb);
37488- atomic_inc(&lvcc->rx.atmvcc->stats->rx);
37489+ atomic_inc_unchecked(&lvcc->rx.atmvcc->stats->rx);
37490 out:
37491 lvcc->rx.buf.ptr = end;
37492 cardvcc_write(lvcc, endptr, vcc_rxreadptr);
37493@@ -1659,7 +1659,7 @@ static int handle_service(struct lanai_dev *lanai, u32 s)
37494 DPRINTK("(itf %d) got RX service entry 0x%X for non-AAL5 "
37495 "vcc %d\n", lanai->number, (unsigned int) s, vci);
37496 lanai->stats.service_rxnotaal5++;
37497- atomic_inc(&lvcc->rx.atmvcc->stats->rx_err);
37498+ atomic_inc_unchecked(&lvcc->rx.atmvcc->stats->rx_err);
37499 return 0;
37500 }
37501 if (likely(!(s & (SERVICE_TRASH | SERVICE_STREAM | SERVICE_CRCERR)))) {
37502@@ -1671,7 +1671,7 @@ static int handle_service(struct lanai_dev *lanai, u32 s)
37503 int bytes;
37504 read_unlock(&vcc_sklist_lock);
37505 DPRINTK("got trashed rx pdu on vci %d\n", vci);
37506- atomic_inc(&lvcc->rx.atmvcc->stats->rx_err);
37507+ atomic_inc_unchecked(&lvcc->rx.atmvcc->stats->rx_err);
37508 lvcc->stats.x.aal5.service_trash++;
37509 bytes = (SERVICE_GET_END(s) * 16) -
37510 (((unsigned long) lvcc->rx.buf.ptr) -
37511@@ -1683,7 +1683,7 @@ static int handle_service(struct lanai_dev *lanai, u32 s)
37512 }
37513 if (s & SERVICE_STREAM) {
37514 read_unlock(&vcc_sklist_lock);
37515- atomic_inc(&lvcc->rx.atmvcc->stats->rx_err);
37516+ atomic_inc_unchecked(&lvcc->rx.atmvcc->stats->rx_err);
37517 lvcc->stats.x.aal5.service_stream++;
37518 printk(KERN_ERR DEV_LABEL "(itf %d): Got AAL5 stream "
37519 "PDU on VCI %d!\n", lanai->number, vci);
37520@@ -1691,7 +1691,7 @@ static int handle_service(struct lanai_dev *lanai, u32 s)
37521 return 0;
37522 }
37523 DPRINTK("got rx crc error on vci %d\n", vci);
37524- atomic_inc(&lvcc->rx.atmvcc->stats->rx_err);
37525+ atomic_inc_unchecked(&lvcc->rx.atmvcc->stats->rx_err);
37526 lvcc->stats.x.aal5.service_rxcrc++;
37527 lvcc->rx.buf.ptr = &lvcc->rx.buf.start[SERVICE_GET_END(s) * 4];
37528 cardvcc_write(lvcc, SERVICE_GET_END(s), vcc_rxreadptr);
37529diff --git a/drivers/atm/nicstar.c b/drivers/atm/nicstar.c
37530index b7e1cc0..eb336bfe 100644
37531--- a/drivers/atm/nicstar.c
37532+++ b/drivers/atm/nicstar.c
37533@@ -1640,7 +1640,7 @@ static int ns_send(struct atm_vcc *vcc, struct sk_buff *skb)
37534 if ((vc = (vc_map *) vcc->dev_data) == NULL) {
37535 printk("nicstar%d: vcc->dev_data == NULL on ns_send().\n",
37536 card->index);
37537- atomic_inc(&vcc->stats->tx_err);
37538+ atomic_inc_unchecked(&vcc->stats->tx_err);
37539 dev_kfree_skb_any(skb);
37540 return -EINVAL;
37541 }
37542@@ -1648,7 +1648,7 @@ static int ns_send(struct atm_vcc *vcc, struct sk_buff *skb)
37543 if (!vc->tx) {
37544 printk("nicstar%d: Trying to transmit on a non-tx VC.\n",
37545 card->index);
37546- atomic_inc(&vcc->stats->tx_err);
37547+ atomic_inc_unchecked(&vcc->stats->tx_err);
37548 dev_kfree_skb_any(skb);
37549 return -EINVAL;
37550 }
37551@@ -1656,14 +1656,14 @@ static int ns_send(struct atm_vcc *vcc, struct sk_buff *skb)
37552 if (vcc->qos.aal != ATM_AAL5 && vcc->qos.aal != ATM_AAL0) {
37553 printk("nicstar%d: Only AAL0 and AAL5 are supported.\n",
37554 card->index);
37555- atomic_inc(&vcc->stats->tx_err);
37556+ atomic_inc_unchecked(&vcc->stats->tx_err);
37557 dev_kfree_skb_any(skb);
37558 return -EINVAL;
37559 }
37560
37561 if (skb_shinfo(skb)->nr_frags != 0) {
37562 printk("nicstar%d: No scatter-gather yet.\n", card->index);
37563- atomic_inc(&vcc->stats->tx_err);
37564+ atomic_inc_unchecked(&vcc->stats->tx_err);
37565 dev_kfree_skb_any(skb);
37566 return -EINVAL;
37567 }
37568@@ -1711,11 +1711,11 @@ static int ns_send(struct atm_vcc *vcc, struct sk_buff *skb)
37569 }
37570
37571 if (push_scqe(card, vc, scq, &scqe, skb) != 0) {
37572- atomic_inc(&vcc->stats->tx_err);
37573+ atomic_inc_unchecked(&vcc->stats->tx_err);
37574 dev_kfree_skb_any(skb);
37575 return -EIO;
37576 }
37577- atomic_inc(&vcc->stats->tx);
37578+ atomic_inc_unchecked(&vcc->stats->tx);
37579
37580 return 0;
37581 }
37582@@ -2032,14 +2032,14 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
37583 printk
37584 ("nicstar%d: Can't allocate buffers for aal0.\n",
37585 card->index);
37586- atomic_add(i, &vcc->stats->rx_drop);
37587+ atomic_add_unchecked(i, &vcc->stats->rx_drop);
37588 break;
37589 }
37590 if (!atm_charge(vcc, sb->truesize)) {
37591 RXPRINTK
37592 ("nicstar%d: atm_charge() dropped aal0 packets.\n",
37593 card->index);
37594- atomic_add(i - 1, &vcc->stats->rx_drop); /* already increased by 1 */
37595+ atomic_add_unchecked(i - 1, &vcc->stats->rx_drop); /* already increased by 1 */
37596 dev_kfree_skb_any(sb);
37597 break;
37598 }
37599@@ -2054,7 +2054,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
37600 ATM_SKB(sb)->vcc = vcc;
37601 __net_timestamp(sb);
37602 vcc->push(vcc, sb);
37603- atomic_inc(&vcc->stats->rx);
37604+ atomic_inc_unchecked(&vcc->stats->rx);
37605 cell += ATM_CELL_PAYLOAD;
37606 }
37607
37608@@ -2071,7 +2071,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
37609 if (iovb == NULL) {
37610 printk("nicstar%d: Out of iovec buffers.\n",
37611 card->index);
37612- atomic_inc(&vcc->stats->rx_drop);
37613+ atomic_inc_unchecked(&vcc->stats->rx_drop);
37614 recycle_rx_buf(card, skb);
37615 return;
37616 }
37617@@ -2095,7 +2095,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
37618 small or large buffer itself. */
37619 } else if (NS_PRV_IOVCNT(iovb) >= NS_MAX_IOVECS) {
37620 printk("nicstar%d: received too big AAL5 SDU.\n", card->index);
37621- atomic_inc(&vcc->stats->rx_err);
37622+ atomic_inc_unchecked(&vcc->stats->rx_err);
37623 recycle_iovec_rx_bufs(card, (struct iovec *)iovb->data,
37624 NS_MAX_IOVECS);
37625 NS_PRV_IOVCNT(iovb) = 0;
37626@@ -2115,7 +2115,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
37627 ("nicstar%d: Expected a small buffer, and this is not one.\n",
37628 card->index);
37629 which_list(card, skb);
37630- atomic_inc(&vcc->stats->rx_err);
37631+ atomic_inc_unchecked(&vcc->stats->rx_err);
37632 recycle_rx_buf(card, skb);
37633 vc->rx_iov = NULL;
37634 recycle_iov_buf(card, iovb);
37635@@ -2128,7 +2128,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
37636 ("nicstar%d: Expected a large buffer, and this is not one.\n",
37637 card->index);
37638 which_list(card, skb);
37639- atomic_inc(&vcc->stats->rx_err);
37640+ atomic_inc_unchecked(&vcc->stats->rx_err);
37641 recycle_iovec_rx_bufs(card, (struct iovec *)iovb->data,
37642 NS_PRV_IOVCNT(iovb));
37643 vc->rx_iov = NULL;
37644@@ -2151,7 +2151,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
37645 printk(" - PDU size mismatch.\n");
37646 else
37647 printk(".\n");
37648- atomic_inc(&vcc->stats->rx_err);
37649+ atomic_inc_unchecked(&vcc->stats->rx_err);
37650 recycle_iovec_rx_bufs(card, (struct iovec *)iovb->data,
37651 NS_PRV_IOVCNT(iovb));
37652 vc->rx_iov = NULL;
37653@@ -2165,7 +2165,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
37654 /* skb points to a small buffer */
37655 if (!atm_charge(vcc, skb->truesize)) {
37656 push_rxbufs(card, skb);
37657- atomic_inc(&vcc->stats->rx_drop);
37658+ atomic_inc_unchecked(&vcc->stats->rx_drop);
37659 } else {
37660 skb_put(skb, len);
37661 dequeue_sm_buf(card, skb);
37662@@ -2175,7 +2175,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
37663 ATM_SKB(skb)->vcc = vcc;
37664 __net_timestamp(skb);
37665 vcc->push(vcc, skb);
37666- atomic_inc(&vcc->stats->rx);
37667+ atomic_inc_unchecked(&vcc->stats->rx);
37668 }
37669 } else if (NS_PRV_IOVCNT(iovb) == 2) { /* One small plus one large buffer */
37670 struct sk_buff *sb;
37671@@ -2186,7 +2186,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
37672 if (len <= NS_SMBUFSIZE) {
37673 if (!atm_charge(vcc, sb->truesize)) {
37674 push_rxbufs(card, sb);
37675- atomic_inc(&vcc->stats->rx_drop);
37676+ atomic_inc_unchecked(&vcc->stats->rx_drop);
37677 } else {
37678 skb_put(sb, len);
37679 dequeue_sm_buf(card, sb);
37680@@ -2196,7 +2196,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
37681 ATM_SKB(sb)->vcc = vcc;
37682 __net_timestamp(sb);
37683 vcc->push(vcc, sb);
37684- atomic_inc(&vcc->stats->rx);
37685+ atomic_inc_unchecked(&vcc->stats->rx);
37686 }
37687
37688 push_rxbufs(card, skb);
37689@@ -2205,7 +2205,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
37690
37691 if (!atm_charge(vcc, skb->truesize)) {
37692 push_rxbufs(card, skb);
37693- atomic_inc(&vcc->stats->rx_drop);
37694+ atomic_inc_unchecked(&vcc->stats->rx_drop);
37695 } else {
37696 dequeue_lg_buf(card, skb);
37697 #ifdef NS_USE_DESTRUCTORS
37698@@ -2218,7 +2218,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
37699 ATM_SKB(skb)->vcc = vcc;
37700 __net_timestamp(skb);
37701 vcc->push(vcc, skb);
37702- atomic_inc(&vcc->stats->rx);
37703+ atomic_inc_unchecked(&vcc->stats->rx);
37704 }
37705
37706 push_rxbufs(card, sb);
37707@@ -2239,7 +2239,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
37708 printk
37709 ("nicstar%d: Out of huge buffers.\n",
37710 card->index);
37711- atomic_inc(&vcc->stats->rx_drop);
37712+ atomic_inc_unchecked(&vcc->stats->rx_drop);
37713 recycle_iovec_rx_bufs(card,
37714 (struct iovec *)
37715 iovb->data,
37716@@ -2290,7 +2290,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
37717 card->hbpool.count++;
37718 } else
37719 dev_kfree_skb_any(hb);
37720- atomic_inc(&vcc->stats->rx_drop);
37721+ atomic_inc_unchecked(&vcc->stats->rx_drop);
37722 } else {
37723 /* Copy the small buffer to the huge buffer */
37724 sb = (struct sk_buff *)iov->iov_base;
37725@@ -2327,7 +2327,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
37726 #endif /* NS_USE_DESTRUCTORS */
37727 __net_timestamp(hb);
37728 vcc->push(vcc, hb);
37729- atomic_inc(&vcc->stats->rx);
37730+ atomic_inc_unchecked(&vcc->stats->rx);
37731 }
37732 }
37733
37734diff --git a/drivers/atm/solos-pci.c b/drivers/atm/solos-pci.c
37735index 74e18b0..f16afa0 100644
37736--- a/drivers/atm/solos-pci.c
37737+++ b/drivers/atm/solos-pci.c
37738@@ -838,7 +838,7 @@ static void solos_bh(unsigned long card_arg)
37739 }
37740 atm_charge(vcc, skb->truesize);
37741 vcc->push(vcc, skb);
37742- atomic_inc(&vcc->stats->rx);
37743+ atomic_inc_unchecked(&vcc->stats->rx);
37744 break;
37745
37746 case PKT_STATUS:
37747@@ -1116,7 +1116,7 @@ static uint32_t fpga_tx(struct solos_card *card)
37748 vcc = SKB_CB(oldskb)->vcc;
37749
37750 if (vcc) {
37751- atomic_inc(&vcc->stats->tx);
37752+ atomic_inc_unchecked(&vcc->stats->tx);
37753 solos_pop(vcc, oldskb);
37754 } else {
37755 dev_kfree_skb_irq(oldskb);
37756diff --git a/drivers/atm/suni.c b/drivers/atm/suni.c
37757index 0215934..ce9f5b1 100644
37758--- a/drivers/atm/suni.c
37759+++ b/drivers/atm/suni.c
37760@@ -49,8 +49,8 @@ static DEFINE_SPINLOCK(sunis_lock);
37761
37762
37763 #define ADD_LIMITED(s,v) \
37764- atomic_add((v),&stats->s); \
37765- if (atomic_read(&stats->s) < 0) atomic_set(&stats->s,INT_MAX);
37766+ atomic_add_unchecked((v),&stats->s); \
37767+ if (atomic_read_unchecked(&stats->s) < 0) atomic_set_unchecked(&stats->s,INT_MAX);
37768
37769
37770 static void suni_hz(unsigned long from_timer)
37771diff --git a/drivers/atm/uPD98402.c b/drivers/atm/uPD98402.c
37772index 5120a96..e2572bd 100644
37773--- a/drivers/atm/uPD98402.c
37774+++ b/drivers/atm/uPD98402.c
37775@@ -42,7 +42,7 @@ static int fetch_stats(struct atm_dev *dev,struct sonet_stats __user *arg,int ze
37776 struct sonet_stats tmp;
37777 int error = 0;
37778
37779- atomic_add(GET(HECCT),&PRIV(dev)->sonet_stats.uncorr_hcs);
37780+ atomic_add_unchecked(GET(HECCT),&PRIV(dev)->sonet_stats.uncorr_hcs);
37781 sonet_copy_stats(&PRIV(dev)->sonet_stats,&tmp);
37782 if (arg) error = copy_to_user(arg,&tmp,sizeof(tmp));
37783 if (zero && !error) {
37784@@ -161,9 +161,9 @@ static int uPD98402_ioctl(struct atm_dev *dev,unsigned int cmd,void __user *arg)
37785
37786
37787 #define ADD_LIMITED(s,v) \
37788- { atomic_add(GET(v),&PRIV(dev)->sonet_stats.s); \
37789- if (atomic_read(&PRIV(dev)->sonet_stats.s) < 0) \
37790- atomic_set(&PRIV(dev)->sonet_stats.s,INT_MAX); }
37791+ { atomic_add_unchecked(GET(v),&PRIV(dev)->sonet_stats.s); \
37792+ if (atomic_read_unchecked(&PRIV(dev)->sonet_stats.s) < 0) \
37793+ atomic_set_unchecked(&PRIV(dev)->sonet_stats.s,INT_MAX); }
37794
37795
37796 static void stat_event(struct atm_dev *dev)
37797@@ -194,7 +194,7 @@ static void uPD98402_int(struct atm_dev *dev)
37798 if (reason & uPD98402_INT_PFM) stat_event(dev);
37799 if (reason & uPD98402_INT_PCO) {
37800 (void) GET(PCOCR); /* clear interrupt cause */
37801- atomic_add(GET(HECCT),
37802+ atomic_add_unchecked(GET(HECCT),
37803 &PRIV(dev)->sonet_stats.uncorr_hcs);
37804 }
37805 if ((reason & uPD98402_INT_RFO) &&
37806@@ -222,9 +222,9 @@ static int uPD98402_start(struct atm_dev *dev)
37807 PUT(~(uPD98402_INT_PFM | uPD98402_INT_ALM | uPD98402_INT_RFO |
37808 uPD98402_INT_LOS),PIMR); /* enable them */
37809 (void) fetch_stats(dev,NULL,1); /* clear kernel counters */
37810- atomic_set(&PRIV(dev)->sonet_stats.corr_hcs,-1);
37811- atomic_set(&PRIV(dev)->sonet_stats.tx_cells,-1);
37812- atomic_set(&PRIV(dev)->sonet_stats.rx_cells,-1);
37813+ atomic_set_unchecked(&PRIV(dev)->sonet_stats.corr_hcs,-1);
37814+ atomic_set_unchecked(&PRIV(dev)->sonet_stats.tx_cells,-1);
37815+ atomic_set_unchecked(&PRIV(dev)->sonet_stats.rx_cells,-1);
37816 return 0;
37817 }
37818
37819diff --git a/drivers/atm/zatm.c b/drivers/atm/zatm.c
37820index cecfb94..87009ec 100644
37821--- a/drivers/atm/zatm.c
37822+++ b/drivers/atm/zatm.c
37823@@ -459,7 +459,7 @@ printk("dummy: 0x%08lx, 0x%08lx\n",dummy[0],dummy[1]);
37824 }
37825 if (!size) {
37826 dev_kfree_skb_irq(skb);
37827- if (vcc) atomic_inc(&vcc->stats->rx_err);
37828+ if (vcc) atomic_inc_unchecked(&vcc->stats->rx_err);
37829 continue;
37830 }
37831 if (!atm_charge(vcc,skb->truesize)) {
37832@@ -469,7 +469,7 @@ printk("dummy: 0x%08lx, 0x%08lx\n",dummy[0],dummy[1]);
37833 skb->len = size;
37834 ATM_SKB(skb)->vcc = vcc;
37835 vcc->push(vcc,skb);
37836- atomic_inc(&vcc->stats->rx);
37837+ atomic_inc_unchecked(&vcc->stats->rx);
37838 }
37839 zout(pos & 0xffff,MTA(mbx));
37840 #if 0 /* probably a stupid idea */
37841@@ -733,7 +733,7 @@ if (*ZATM_PRV_DSC(skb) != (uPD98401_TXPD_V | uPD98401_TXPD_DP |
37842 skb_queue_head(&zatm_vcc->backlog,skb);
37843 break;
37844 }
37845- atomic_inc(&vcc->stats->tx);
37846+ atomic_inc_unchecked(&vcc->stats->tx);
37847 wake_up(&zatm_vcc->tx_wait);
37848 }
37849
37850diff --git a/drivers/base/bus.c b/drivers/base/bus.c
37851index 79bc203..fa3945b 100644
37852--- a/drivers/base/bus.c
37853+++ b/drivers/base/bus.c
37854@@ -1126,7 +1126,7 @@ int subsys_interface_register(struct subsys_interface *sif)
37855 return -EINVAL;
37856
37857 mutex_lock(&subsys->p->mutex);
37858- list_add_tail(&sif->node, &subsys->p->interfaces);
37859+ pax_list_add_tail((struct list_head *)&sif->node, &subsys->p->interfaces);
37860 if (sif->add_dev) {
37861 subsys_dev_iter_init(&iter, subsys, NULL, NULL);
37862 while ((dev = subsys_dev_iter_next(&iter)))
37863@@ -1151,7 +1151,7 @@ void subsys_interface_unregister(struct subsys_interface *sif)
37864 subsys = sif->subsys;
37865
37866 mutex_lock(&subsys->p->mutex);
37867- list_del_init(&sif->node);
37868+ pax_list_del_init((struct list_head *)&sif->node);
37869 if (sif->remove_dev) {
37870 subsys_dev_iter_init(&iter, subsys, NULL, NULL);
37871 while ((dev = subsys_dev_iter_next(&iter)))
37872diff --git a/drivers/base/devtmpfs.c b/drivers/base/devtmpfs.c
37873index 25798db..15f130e 100644
37874--- a/drivers/base/devtmpfs.c
37875+++ b/drivers/base/devtmpfs.c
37876@@ -354,7 +354,7 @@ int devtmpfs_mount(const char *mntdir)
37877 if (!thread)
37878 return 0;
37879
37880- err = sys_mount("devtmpfs", (char *)mntdir, "devtmpfs", MS_SILENT, NULL);
37881+ err = sys_mount((char __force_user *)"devtmpfs", (char __force_user *)mntdir, (char __force_user *)"devtmpfs", MS_SILENT, NULL);
37882 if (err)
37883 printk(KERN_INFO "devtmpfs: error mounting %i\n", err);
37884 else
37885@@ -380,11 +380,11 @@ static int devtmpfsd(void *p)
37886 *err = sys_unshare(CLONE_NEWNS);
37887 if (*err)
37888 goto out;
37889- *err = sys_mount("devtmpfs", "/", "devtmpfs", MS_SILENT, options);
37890+ *err = sys_mount((char __force_user *)"devtmpfs", (char __force_user *)"/", (char __force_user *)"devtmpfs", MS_SILENT, (char __force_user *)options);
37891 if (*err)
37892 goto out;
37893- sys_chdir("/.."); /* will traverse into overmounted root */
37894- sys_chroot(".");
37895+ sys_chdir((char __force_user *)"/.."); /* will traverse into overmounted root */
37896+ sys_chroot((char __force_user *)".");
37897 complete(&setup_done);
37898 while (1) {
37899 spin_lock(&req_lock);
37900diff --git a/drivers/base/node.c b/drivers/base/node.c
37901index 36fabe43..8cfc112 100644
37902--- a/drivers/base/node.c
37903+++ b/drivers/base/node.c
37904@@ -615,7 +615,7 @@ static ssize_t print_nodes_state(enum node_states state, char *buf)
37905 struct node_attr {
37906 struct device_attribute attr;
37907 enum node_states state;
37908-};
37909+} __do_const;
37910
37911 static ssize_t show_node_state(struct device *dev,
37912 struct device_attribute *attr, char *buf)
37913diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c
37914index 45937f8..b9a342e 100644
37915--- a/drivers/base/power/domain.c
37916+++ b/drivers/base/power/domain.c
37917@@ -1698,7 +1698,7 @@ int pm_genpd_attach_cpuidle(struct generic_pm_domain *genpd, int state)
37918 {
37919 struct cpuidle_driver *cpuidle_drv;
37920 struct gpd_cpuidle_data *cpuidle_data;
37921- struct cpuidle_state *idle_state;
37922+ cpuidle_state_no_const *idle_state;
37923 int ret = 0;
37924
37925 if (IS_ERR_OR_NULL(genpd) || state < 0)
37926@@ -1766,7 +1766,7 @@ int pm_genpd_name_attach_cpuidle(const char *name, int state)
37927 int pm_genpd_detach_cpuidle(struct generic_pm_domain *genpd)
37928 {
37929 struct gpd_cpuidle_data *cpuidle_data;
37930- struct cpuidle_state *idle_state;
37931+ cpuidle_state_no_const *idle_state;
37932 int ret = 0;
37933
37934 if (IS_ERR_OR_NULL(genpd))
37935@@ -2195,7 +2195,10 @@ int genpd_dev_pm_attach(struct device *dev)
37936 return ret;
37937 }
37938
37939- dev->pm_domain->detach = genpd_dev_pm_detach;
37940+ pax_open_kernel();
37941+ *(void **)&dev->pm_domain->detach = genpd_dev_pm_detach;
37942+ pax_close_kernel();
37943+
37944 pm_genpd_poweron(pd);
37945
37946 return 0;
37947diff --git a/drivers/base/power/sysfs.c b/drivers/base/power/sysfs.c
37948index d2be3f9..0a3167a 100644
37949--- a/drivers/base/power/sysfs.c
37950+++ b/drivers/base/power/sysfs.c
37951@@ -181,7 +181,7 @@ static ssize_t rtpm_status_show(struct device *dev,
37952 return -EIO;
37953 }
37954 }
37955- return sprintf(buf, p);
37956+ return sprintf(buf, "%s", p);
37957 }
37958
37959 static DEVICE_ATTR(runtime_status, 0444, rtpm_status_show, NULL);
37960diff --git a/drivers/base/power/wakeup.c b/drivers/base/power/wakeup.c
37961index aab7158..b172db2 100644
37962--- a/drivers/base/power/wakeup.c
37963+++ b/drivers/base/power/wakeup.c
37964@@ -32,14 +32,14 @@ static bool pm_abort_suspend __read_mostly;
37965 * They need to be modified together atomically, so it's better to use one
37966 * atomic variable to hold them both.
37967 */
37968-static atomic_t combined_event_count = ATOMIC_INIT(0);
37969+static atomic_unchecked_t combined_event_count = ATOMIC_INIT(0);
37970
37971 #define IN_PROGRESS_BITS (sizeof(int) * 4)
37972 #define MAX_IN_PROGRESS ((1 << IN_PROGRESS_BITS) - 1)
37973
37974 static void split_counters(unsigned int *cnt, unsigned int *inpr)
37975 {
37976- unsigned int comb = atomic_read(&combined_event_count);
37977+ unsigned int comb = atomic_read_unchecked(&combined_event_count);
37978
37979 *cnt = (comb >> IN_PROGRESS_BITS);
37980 *inpr = comb & MAX_IN_PROGRESS;
37981@@ -404,7 +404,7 @@ static void wakeup_source_activate(struct wakeup_source *ws)
37982 ws->start_prevent_time = ws->last_time;
37983
37984 /* Increment the counter of events in progress. */
37985- cec = atomic_inc_return(&combined_event_count);
37986+ cec = atomic_inc_return_unchecked(&combined_event_count);
37987
37988 trace_wakeup_source_activate(ws->name, cec);
37989 }
37990@@ -530,7 +530,7 @@ static void wakeup_source_deactivate(struct wakeup_source *ws)
37991 * Increment the counter of registered wakeup events and decrement the
37992 * couter of wakeup events in progress simultaneously.
37993 */
37994- cec = atomic_add_return(MAX_IN_PROGRESS, &combined_event_count);
37995+ cec = atomic_add_return_unchecked(MAX_IN_PROGRESS, &combined_event_count);
37996 trace_wakeup_source_deactivate(ws->name, cec);
37997
37998 split_counters(&cnt, &inpr);
37999diff --git a/drivers/base/syscore.c b/drivers/base/syscore.c
38000index 8d98a32..61d3165 100644
38001--- a/drivers/base/syscore.c
38002+++ b/drivers/base/syscore.c
38003@@ -22,7 +22,7 @@ static DEFINE_MUTEX(syscore_ops_lock);
38004 void register_syscore_ops(struct syscore_ops *ops)
38005 {
38006 mutex_lock(&syscore_ops_lock);
38007- list_add_tail(&ops->node, &syscore_ops_list);
38008+ pax_list_add_tail((struct list_head *)&ops->node, &syscore_ops_list);
38009 mutex_unlock(&syscore_ops_lock);
38010 }
38011 EXPORT_SYMBOL_GPL(register_syscore_ops);
38012@@ -34,7 +34,7 @@ EXPORT_SYMBOL_GPL(register_syscore_ops);
38013 void unregister_syscore_ops(struct syscore_ops *ops)
38014 {
38015 mutex_lock(&syscore_ops_lock);
38016- list_del(&ops->node);
38017+ pax_list_del((struct list_head *)&ops->node);
38018 mutex_unlock(&syscore_ops_lock);
38019 }
38020 EXPORT_SYMBOL_GPL(unregister_syscore_ops);
38021diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
38022index ff20f19..018f1da 100644
38023--- a/drivers/block/cciss.c
38024+++ b/drivers/block/cciss.c
38025@@ -3008,7 +3008,7 @@ static void start_io(ctlr_info_t *h)
38026 while (!list_empty(&h->reqQ)) {
38027 c = list_entry(h->reqQ.next, CommandList_struct, list);
38028 /* can't do anything if fifo is full */
38029- if ((h->access.fifo_full(h))) {
38030+ if ((h->access->fifo_full(h))) {
38031 dev_warn(&h->pdev->dev, "fifo full\n");
38032 break;
38033 }
38034@@ -3018,7 +3018,7 @@ static void start_io(ctlr_info_t *h)
38035 h->Qdepth--;
38036
38037 /* Tell the controller execute command */
38038- h->access.submit_command(h, c);
38039+ h->access->submit_command(h, c);
38040
38041 /* Put job onto the completed Q */
38042 addQ(&h->cmpQ, c);
38043@@ -3444,17 +3444,17 @@ startio:
38044
38045 static inline unsigned long get_next_completion(ctlr_info_t *h)
38046 {
38047- return h->access.command_completed(h);
38048+ return h->access->command_completed(h);
38049 }
38050
38051 static inline int interrupt_pending(ctlr_info_t *h)
38052 {
38053- return h->access.intr_pending(h);
38054+ return h->access->intr_pending(h);
38055 }
38056
38057 static inline long interrupt_not_for_us(ctlr_info_t *h)
38058 {
38059- return ((h->access.intr_pending(h) == 0) ||
38060+ return ((h->access->intr_pending(h) == 0) ||
38061 (h->interrupts_enabled == 0));
38062 }
38063
38064@@ -3487,7 +3487,7 @@ static inline u32 next_command(ctlr_info_t *h)
38065 u32 a;
38066
38067 if (unlikely(!(h->transMethod & CFGTBL_Trans_Performant)))
38068- return h->access.command_completed(h);
38069+ return h->access->command_completed(h);
38070
38071 if ((*(h->reply_pool_head) & 1) == (h->reply_pool_wraparound)) {
38072 a = *(h->reply_pool_head); /* Next cmd in ring buffer */
38073@@ -4044,7 +4044,7 @@ static void cciss_put_controller_into_performant_mode(ctlr_info_t *h)
38074 trans_support & CFGTBL_Trans_use_short_tags);
38075
38076 /* Change the access methods to the performant access methods */
38077- h->access = SA5_performant_access;
38078+ h->access = &SA5_performant_access;
38079 h->transMethod = CFGTBL_Trans_Performant;
38080
38081 return;
38082@@ -4318,7 +4318,7 @@ static int cciss_pci_init(ctlr_info_t *h)
38083 if (prod_index < 0)
38084 return -ENODEV;
38085 h->product_name = products[prod_index].product_name;
38086- h->access = *(products[prod_index].access);
38087+ h->access = products[prod_index].access;
38088
38089 if (cciss_board_disabled(h)) {
38090 dev_warn(&h->pdev->dev, "controller appears to be disabled\n");
38091@@ -5050,7 +5050,7 @@ reinit_after_soft_reset:
38092 }
38093
38094 /* make sure the board interrupts are off */
38095- h->access.set_intr_mask(h, CCISS_INTR_OFF);
38096+ h->access->set_intr_mask(h, CCISS_INTR_OFF);
38097 rc = cciss_request_irq(h, do_cciss_msix_intr, do_cciss_intx);
38098 if (rc)
38099 goto clean2;
38100@@ -5100,7 +5100,7 @@ reinit_after_soft_reset:
38101 * fake ones to scoop up any residual completions.
38102 */
38103 spin_lock_irqsave(&h->lock, flags);
38104- h->access.set_intr_mask(h, CCISS_INTR_OFF);
38105+ h->access->set_intr_mask(h, CCISS_INTR_OFF);
38106 spin_unlock_irqrestore(&h->lock, flags);
38107 free_irq(h->intr[h->intr_mode], h);
38108 rc = cciss_request_irq(h, cciss_msix_discard_completions,
38109@@ -5120,9 +5120,9 @@ reinit_after_soft_reset:
38110 dev_info(&h->pdev->dev, "Board READY.\n");
38111 dev_info(&h->pdev->dev,
38112 "Waiting for stale completions to drain.\n");
38113- h->access.set_intr_mask(h, CCISS_INTR_ON);
38114+ h->access->set_intr_mask(h, CCISS_INTR_ON);
38115 msleep(10000);
38116- h->access.set_intr_mask(h, CCISS_INTR_OFF);
38117+ h->access->set_intr_mask(h, CCISS_INTR_OFF);
38118
38119 rc = controller_reset_failed(h->cfgtable);
38120 if (rc)
38121@@ -5145,7 +5145,7 @@ reinit_after_soft_reset:
38122 cciss_scsi_setup(h);
38123
38124 /* Turn the interrupts on so we can service requests */
38125- h->access.set_intr_mask(h, CCISS_INTR_ON);
38126+ h->access->set_intr_mask(h, CCISS_INTR_ON);
38127
38128 /* Get the firmware version */
38129 inq_buff = kzalloc(sizeof(InquiryData_struct), GFP_KERNEL);
38130@@ -5217,7 +5217,7 @@ static void cciss_shutdown(struct pci_dev *pdev)
38131 kfree(flush_buf);
38132 if (return_code != IO_OK)
38133 dev_warn(&h->pdev->dev, "Error flushing cache\n");
38134- h->access.set_intr_mask(h, CCISS_INTR_OFF);
38135+ h->access->set_intr_mask(h, CCISS_INTR_OFF);
38136 free_irq(h->intr[h->intr_mode], h);
38137 }
38138
38139diff --git a/drivers/block/cciss.h b/drivers/block/cciss.h
38140index 7fda30e..2f27946 100644
38141--- a/drivers/block/cciss.h
38142+++ b/drivers/block/cciss.h
38143@@ -101,7 +101,7 @@ struct ctlr_info
38144 /* information about each logical volume */
38145 drive_info_struct *drv[CISS_MAX_LUN];
38146
38147- struct access_method access;
38148+ struct access_method *access;
38149
38150 /* queue and queue Info */
38151 struct list_head reqQ;
38152@@ -402,27 +402,27 @@ static bool SA5_performant_intr_pending(ctlr_info_t *h)
38153 }
38154
38155 static struct access_method SA5_access = {
38156- SA5_submit_command,
38157- SA5_intr_mask,
38158- SA5_fifo_full,
38159- SA5_intr_pending,
38160- SA5_completed,
38161+ .submit_command = SA5_submit_command,
38162+ .set_intr_mask = SA5_intr_mask,
38163+ .fifo_full = SA5_fifo_full,
38164+ .intr_pending = SA5_intr_pending,
38165+ .command_completed = SA5_completed,
38166 };
38167
38168 static struct access_method SA5B_access = {
38169- SA5_submit_command,
38170- SA5B_intr_mask,
38171- SA5_fifo_full,
38172- SA5B_intr_pending,
38173- SA5_completed,
38174+ .submit_command = SA5_submit_command,
38175+ .set_intr_mask = SA5B_intr_mask,
38176+ .fifo_full = SA5_fifo_full,
38177+ .intr_pending = SA5B_intr_pending,
38178+ .command_completed = SA5_completed,
38179 };
38180
38181 static struct access_method SA5_performant_access = {
38182- SA5_submit_command,
38183- SA5_performant_intr_mask,
38184- SA5_fifo_full,
38185- SA5_performant_intr_pending,
38186- SA5_performant_completed,
38187+ .submit_command = SA5_submit_command,
38188+ .set_intr_mask = SA5_performant_intr_mask,
38189+ .fifo_full = SA5_fifo_full,
38190+ .intr_pending = SA5_performant_intr_pending,
38191+ .command_completed = SA5_performant_completed,
38192 };
38193
38194 struct board_type {
38195diff --git a/drivers/block/cpqarray.c b/drivers/block/cpqarray.c
38196index 2b94403..fd6ad1f 100644
38197--- a/drivers/block/cpqarray.c
38198+++ b/drivers/block/cpqarray.c
38199@@ -404,7 +404,7 @@ static int cpqarray_register_ctlr(int i, struct pci_dev *pdev)
38200 if (register_blkdev(COMPAQ_SMART2_MAJOR+i, hba[i]->devname)) {
38201 goto Enomem4;
38202 }
38203- hba[i]->access.set_intr_mask(hba[i], 0);
38204+ hba[i]->access->set_intr_mask(hba[i], 0);
38205 if (request_irq(hba[i]->intr, do_ida_intr,
38206 IRQF_DISABLED|IRQF_SHARED, hba[i]->devname, hba[i]))
38207 {
38208@@ -459,7 +459,7 @@ static int cpqarray_register_ctlr(int i, struct pci_dev *pdev)
38209 add_timer(&hba[i]->timer);
38210
38211 /* Enable IRQ now that spinlock and rate limit timer are set up */
38212- hba[i]->access.set_intr_mask(hba[i], FIFO_NOT_EMPTY);
38213+ hba[i]->access->set_intr_mask(hba[i], FIFO_NOT_EMPTY);
38214
38215 for(j=0; j<NWD; j++) {
38216 struct gendisk *disk = ida_gendisk[i][j];
38217@@ -694,7 +694,7 @@ DBGINFO(
38218 for(i=0; i<NR_PRODUCTS; i++) {
38219 if (board_id == products[i].board_id) {
38220 c->product_name = products[i].product_name;
38221- c->access = *(products[i].access);
38222+ c->access = products[i].access;
38223 break;
38224 }
38225 }
38226@@ -792,7 +792,7 @@ static int cpqarray_eisa_detect(void)
38227 hba[ctlr]->intr = intr;
38228 sprintf(hba[ctlr]->devname, "ida%d", nr_ctlr);
38229 hba[ctlr]->product_name = products[j].product_name;
38230- hba[ctlr]->access = *(products[j].access);
38231+ hba[ctlr]->access = products[j].access;
38232 hba[ctlr]->ctlr = ctlr;
38233 hba[ctlr]->board_id = board_id;
38234 hba[ctlr]->pci_dev = NULL; /* not PCI */
38235@@ -978,7 +978,7 @@ static void start_io(ctlr_info_t *h)
38236
38237 while((c = h->reqQ) != NULL) {
38238 /* Can't do anything if we're busy */
38239- if (h->access.fifo_full(h) == 0)
38240+ if (h->access->fifo_full(h) == 0)
38241 return;
38242
38243 /* Get the first entry from the request Q */
38244@@ -986,7 +986,7 @@ static void start_io(ctlr_info_t *h)
38245 h->Qdepth--;
38246
38247 /* Tell the controller to do our bidding */
38248- h->access.submit_command(h, c);
38249+ h->access->submit_command(h, c);
38250
38251 /* Get onto the completion Q */
38252 addQ(&h->cmpQ, c);
38253@@ -1048,7 +1048,7 @@ static irqreturn_t do_ida_intr(int irq, void *dev_id)
38254 unsigned long flags;
38255 __u32 a,a1;
38256
38257- istat = h->access.intr_pending(h);
38258+ istat = h->access->intr_pending(h);
38259 /* Is this interrupt for us? */
38260 if (istat == 0)
38261 return IRQ_NONE;
38262@@ -1059,7 +1059,7 @@ static irqreturn_t do_ida_intr(int irq, void *dev_id)
38263 */
38264 spin_lock_irqsave(IDA_LOCK(h->ctlr), flags);
38265 if (istat & FIFO_NOT_EMPTY) {
38266- while((a = h->access.command_completed(h))) {
38267+ while((a = h->access->command_completed(h))) {
38268 a1 = a; a &= ~3;
38269 if ((c = h->cmpQ) == NULL)
38270 {
38271@@ -1448,11 +1448,11 @@ static int sendcmd(
38272 /*
38273 * Disable interrupt
38274 */
38275- info_p->access.set_intr_mask(info_p, 0);
38276+ info_p->access->set_intr_mask(info_p, 0);
38277 /* Make sure there is room in the command FIFO */
38278 /* Actually it should be completely empty at this time. */
38279 for (i = 200000; i > 0; i--) {
38280- temp = info_p->access.fifo_full(info_p);
38281+ temp = info_p->access->fifo_full(info_p);
38282 if (temp != 0) {
38283 break;
38284 }
38285@@ -1465,7 +1465,7 @@ DBG(
38286 /*
38287 * Send the cmd
38288 */
38289- info_p->access.submit_command(info_p, c);
38290+ info_p->access->submit_command(info_p, c);
38291 complete = pollcomplete(ctlr);
38292
38293 pci_unmap_single(info_p->pci_dev, (dma_addr_t) c->req.sg[0].addr,
38294@@ -1548,9 +1548,9 @@ static int revalidate_allvol(ctlr_info_t *host)
38295 * we check the new geometry. Then turn interrupts back on when
38296 * we're done.
38297 */
38298- host->access.set_intr_mask(host, 0);
38299+ host->access->set_intr_mask(host, 0);
38300 getgeometry(ctlr);
38301- host->access.set_intr_mask(host, FIFO_NOT_EMPTY);
38302+ host->access->set_intr_mask(host, FIFO_NOT_EMPTY);
38303
38304 for(i=0; i<NWD; i++) {
38305 struct gendisk *disk = ida_gendisk[ctlr][i];
38306@@ -1590,7 +1590,7 @@ static int pollcomplete(int ctlr)
38307 /* Wait (up to 2 seconds) for a command to complete */
38308
38309 for (i = 200000; i > 0; i--) {
38310- done = hba[ctlr]->access.command_completed(hba[ctlr]);
38311+ done = hba[ctlr]->access->command_completed(hba[ctlr]);
38312 if (done == 0) {
38313 udelay(10); /* a short fixed delay */
38314 } else
38315diff --git a/drivers/block/cpqarray.h b/drivers/block/cpqarray.h
38316index be73e9d..7fbf140 100644
38317--- a/drivers/block/cpqarray.h
38318+++ b/drivers/block/cpqarray.h
38319@@ -99,7 +99,7 @@ struct ctlr_info {
38320 drv_info_t drv[NWD];
38321 struct proc_dir_entry *proc;
38322
38323- struct access_method access;
38324+ struct access_method *access;
38325
38326 cmdlist_t *reqQ;
38327 cmdlist_t *cmpQ;
38328diff --git a/drivers/block/drbd/drbd_bitmap.c b/drivers/block/drbd/drbd_bitmap.c
38329index 434c77d..6d3219a 100644
38330--- a/drivers/block/drbd/drbd_bitmap.c
38331+++ b/drivers/block/drbd/drbd_bitmap.c
38332@@ -1036,7 +1036,7 @@ static void bm_page_io_async(struct drbd_bm_aio_ctx *ctx, int page_nr) __must_ho
38333 submit_bio(rw, bio);
38334 /* this should not count as user activity and cause the
38335 * resync to throttle -- see drbd_rs_should_slow_down(). */
38336- atomic_add(len >> 9, &device->rs_sect_ev);
38337+ atomic_add_unchecked(len >> 9, &device->rs_sect_ev);
38338 }
38339 }
38340
38341diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h
38342index b905e98..0812ed8 100644
38343--- a/drivers/block/drbd/drbd_int.h
38344+++ b/drivers/block/drbd/drbd_int.h
38345@@ -385,7 +385,7 @@ struct drbd_epoch {
38346 struct drbd_connection *connection;
38347 struct list_head list;
38348 unsigned int barrier_nr;
38349- atomic_t epoch_size; /* increased on every request added. */
38350+ atomic_unchecked_t epoch_size; /* increased on every request added. */
38351 atomic_t active; /* increased on every req. added, and dec on every finished. */
38352 unsigned long flags;
38353 };
38354@@ -946,7 +946,7 @@ struct drbd_device {
38355 unsigned int al_tr_number;
38356 int al_tr_cycle;
38357 wait_queue_head_t seq_wait;
38358- atomic_t packet_seq;
38359+ atomic_unchecked_t packet_seq;
38360 unsigned int peer_seq;
38361 spinlock_t peer_seq_lock;
38362 unsigned long comm_bm_set; /* communicated number of set bits. */
38363@@ -955,8 +955,8 @@ struct drbd_device {
38364 struct mutex own_state_mutex;
38365 struct mutex *state_mutex; /* either own_state_mutex or first_peer_device(device)->connection->cstate_mutex */
38366 char congestion_reason; /* Why we where congested... */
38367- atomic_t rs_sect_in; /* for incoming resync data rate, SyncTarget */
38368- atomic_t rs_sect_ev; /* for submitted resync data rate, both */
38369+ atomic_unchecked_t rs_sect_in; /* for incoming resync data rate, SyncTarget */
38370+ atomic_unchecked_t rs_sect_ev; /* for submitted resync data rate, both */
38371 int rs_last_sect_ev; /* counter to compare with */
38372 int rs_last_events; /* counter of read or write "events" (unit sectors)
38373 * on the lower level device when we last looked. */
38374diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c
38375index 1fc8342..7e7742b 100644
38376--- a/drivers/block/drbd/drbd_main.c
38377+++ b/drivers/block/drbd/drbd_main.c
38378@@ -1328,7 +1328,7 @@ static int _drbd_send_ack(struct drbd_peer_device *peer_device, enum drbd_packet
38379 p->sector = sector;
38380 p->block_id = block_id;
38381 p->blksize = blksize;
38382- p->seq_num = cpu_to_be32(atomic_inc_return(&peer_device->device->packet_seq));
38383+ p->seq_num = cpu_to_be32(atomic_inc_return_unchecked(&peer_device->device->packet_seq));
38384 return drbd_send_command(peer_device, sock, cmd, sizeof(*p), NULL, 0);
38385 }
38386
38387@@ -1634,7 +1634,7 @@ int drbd_send_dblock(struct drbd_peer_device *peer_device, struct drbd_request *
38388 return -EIO;
38389 p->sector = cpu_to_be64(req->i.sector);
38390 p->block_id = (unsigned long)req;
38391- p->seq_num = cpu_to_be32(atomic_inc_return(&device->packet_seq));
38392+ p->seq_num = cpu_to_be32(atomic_inc_return_unchecked(&device->packet_seq));
38393 dp_flags = bio_flags_to_wire(peer_device->connection, req->master_bio->bi_rw);
38394 if (device->state.conn >= C_SYNC_SOURCE &&
38395 device->state.conn <= C_PAUSED_SYNC_T)
38396@@ -1915,8 +1915,8 @@ void drbd_init_set_defaults(struct drbd_device *device)
38397 atomic_set(&device->unacked_cnt, 0);
38398 atomic_set(&device->local_cnt, 0);
38399 atomic_set(&device->pp_in_use_by_net, 0);
38400- atomic_set(&device->rs_sect_in, 0);
38401- atomic_set(&device->rs_sect_ev, 0);
38402+ atomic_set_unchecked(&device->rs_sect_in, 0);
38403+ atomic_set_unchecked(&device->rs_sect_ev, 0);
38404 atomic_set(&device->ap_in_flight, 0);
38405 atomic_set(&device->md_io.in_use, 0);
38406
38407@@ -2684,8 +2684,8 @@ void drbd_destroy_connection(struct kref *kref)
38408 struct drbd_connection *connection = container_of(kref, struct drbd_connection, kref);
38409 struct drbd_resource *resource = connection->resource;
38410
38411- if (atomic_read(&connection->current_epoch->epoch_size) != 0)
38412- drbd_err(connection, "epoch_size:%d\n", atomic_read(&connection->current_epoch->epoch_size));
38413+ if (atomic_read_unchecked(&connection->current_epoch->epoch_size) != 0)
38414+ drbd_err(connection, "epoch_size:%d\n", atomic_read_unchecked(&connection->current_epoch->epoch_size));
38415 kfree(connection->current_epoch);
38416
38417 idr_destroy(&connection->peer_devices);
38418diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c
38419index 74df8cf..e41fc24 100644
38420--- a/drivers/block/drbd/drbd_nl.c
38421+++ b/drivers/block/drbd/drbd_nl.c
38422@@ -3637,13 +3637,13 @@ finish:
38423
38424 void drbd_bcast_event(struct drbd_device *device, const struct sib_info *sib)
38425 {
38426- static atomic_t drbd_genl_seq = ATOMIC_INIT(2); /* two. */
38427+ static atomic_unchecked_t drbd_genl_seq = ATOMIC_INIT(2); /* two. */
38428 struct sk_buff *msg;
38429 struct drbd_genlmsghdr *d_out;
38430 unsigned seq;
38431 int err = -ENOMEM;
38432
38433- seq = atomic_inc_return(&drbd_genl_seq);
38434+ seq = atomic_inc_return_unchecked(&drbd_genl_seq);
38435 msg = genlmsg_new(NLMSG_GOODSIZE, GFP_NOIO);
38436 if (!msg)
38437 goto failed;
38438diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c
38439index cee2035..22f66bd 100644
38440--- a/drivers/block/drbd/drbd_receiver.c
38441+++ b/drivers/block/drbd/drbd_receiver.c
38442@@ -870,7 +870,7 @@ int drbd_connected(struct drbd_peer_device *peer_device)
38443 struct drbd_device *device = peer_device->device;
38444 int err;
38445
38446- atomic_set(&device->packet_seq, 0);
38447+ atomic_set_unchecked(&device->packet_seq, 0);
38448 device->peer_seq = 0;
38449
38450 device->state_mutex = peer_device->connection->agreed_pro_version < 100 ?
38451@@ -1233,7 +1233,7 @@ static enum finish_epoch drbd_may_finish_epoch(struct drbd_connection *connectio
38452 do {
38453 next_epoch = NULL;
38454
38455- epoch_size = atomic_read(&epoch->epoch_size);
38456+ epoch_size = atomic_read_unchecked(&epoch->epoch_size);
38457
38458 switch (ev & ~EV_CLEANUP) {
38459 case EV_PUT:
38460@@ -1273,7 +1273,7 @@ static enum finish_epoch drbd_may_finish_epoch(struct drbd_connection *connectio
38461 rv = FE_DESTROYED;
38462 } else {
38463 epoch->flags = 0;
38464- atomic_set(&epoch->epoch_size, 0);
38465+ atomic_set_unchecked(&epoch->epoch_size, 0);
38466 /* atomic_set(&epoch->active, 0); is already zero */
38467 if (rv == FE_STILL_LIVE)
38468 rv = FE_RECYCLED;
38469@@ -1550,7 +1550,7 @@ static int receive_Barrier(struct drbd_connection *connection, struct packet_inf
38470 conn_wait_active_ee_empty(connection);
38471 drbd_flush(connection);
38472
38473- if (atomic_read(&connection->current_epoch->epoch_size)) {
38474+ if (atomic_read_unchecked(&connection->current_epoch->epoch_size)) {
38475 epoch = kmalloc(sizeof(struct drbd_epoch), GFP_NOIO);
38476 if (epoch)
38477 break;
38478@@ -1564,11 +1564,11 @@ static int receive_Barrier(struct drbd_connection *connection, struct packet_inf
38479 }
38480
38481 epoch->flags = 0;
38482- atomic_set(&epoch->epoch_size, 0);
38483+ atomic_set_unchecked(&epoch->epoch_size, 0);
38484 atomic_set(&epoch->active, 0);
38485
38486 spin_lock(&connection->epoch_lock);
38487- if (atomic_read(&connection->current_epoch->epoch_size)) {
38488+ if (atomic_read_unchecked(&connection->current_epoch->epoch_size)) {
38489 list_add(&epoch->list, &connection->current_epoch->list);
38490 connection->current_epoch = epoch;
38491 connection->epochs++;
38492@@ -1802,7 +1802,7 @@ static int recv_resync_read(struct drbd_peer_device *peer_device, sector_t secto
38493 list_add_tail(&peer_req->w.list, &device->sync_ee);
38494 spin_unlock_irq(&device->resource->req_lock);
38495
38496- atomic_add(pi->size >> 9, &device->rs_sect_ev);
38497+ atomic_add_unchecked(pi->size >> 9, &device->rs_sect_ev);
38498 if (drbd_submit_peer_request(device, peer_req, WRITE, DRBD_FAULT_RS_WR) == 0)
38499 return 0;
38500
38501@@ -1900,7 +1900,7 @@ static int receive_RSDataReply(struct drbd_connection *connection, struct packet
38502 drbd_send_ack_dp(peer_device, P_NEG_ACK, p, pi->size);
38503 }
38504
38505- atomic_add(pi->size >> 9, &device->rs_sect_in);
38506+ atomic_add_unchecked(pi->size >> 9, &device->rs_sect_in);
38507
38508 return err;
38509 }
38510@@ -2290,7 +2290,7 @@ static int receive_Data(struct drbd_connection *connection, struct packet_info *
38511
38512 err = wait_for_and_update_peer_seq(peer_device, peer_seq);
38513 drbd_send_ack_dp(peer_device, P_NEG_ACK, p, pi->size);
38514- atomic_inc(&connection->current_epoch->epoch_size);
38515+ atomic_inc_unchecked(&connection->current_epoch->epoch_size);
38516 err2 = drbd_drain_block(peer_device, pi->size);
38517 if (!err)
38518 err = err2;
38519@@ -2334,7 +2334,7 @@ static int receive_Data(struct drbd_connection *connection, struct packet_info *
38520
38521 spin_lock(&connection->epoch_lock);
38522 peer_req->epoch = connection->current_epoch;
38523- atomic_inc(&peer_req->epoch->epoch_size);
38524+ atomic_inc_unchecked(&peer_req->epoch->epoch_size);
38525 atomic_inc(&peer_req->epoch->active);
38526 spin_unlock(&connection->epoch_lock);
38527
38528@@ -2479,7 +2479,7 @@ bool drbd_rs_c_min_rate_throttle(struct drbd_device *device)
38529
38530 curr_events = (int)part_stat_read(&disk->part0, sectors[0]) +
38531 (int)part_stat_read(&disk->part0, sectors[1]) -
38532- atomic_read(&device->rs_sect_ev);
38533+ atomic_read_unchecked(&device->rs_sect_ev);
38534
38535 if (atomic_read(&device->ap_actlog_cnt)
38536 || curr_events - device->rs_last_events > 64) {
38537@@ -2618,7 +2618,7 @@ static int receive_DataRequest(struct drbd_connection *connection, struct packet
38538 device->use_csums = true;
38539 } else if (pi->cmd == P_OV_REPLY) {
38540 /* track progress, we may need to throttle */
38541- atomic_add(size >> 9, &device->rs_sect_in);
38542+ atomic_add_unchecked(size >> 9, &device->rs_sect_in);
38543 peer_req->w.cb = w_e_end_ov_reply;
38544 dec_rs_pending(device);
38545 /* drbd_rs_begin_io done when we sent this request,
38546@@ -2691,7 +2691,7 @@ static int receive_DataRequest(struct drbd_connection *connection, struct packet
38547 goto out_free_e;
38548
38549 submit_for_resync:
38550- atomic_add(size >> 9, &device->rs_sect_ev);
38551+ atomic_add_unchecked(size >> 9, &device->rs_sect_ev);
38552
38553 submit:
38554 update_receiver_timing_details(connection, drbd_submit_peer_request);
38555@@ -4564,7 +4564,7 @@ struct data_cmd {
38556 int expect_payload;
38557 size_t pkt_size;
38558 int (*fn)(struct drbd_connection *, struct packet_info *);
38559-};
38560+} __do_const;
38561
38562 static struct data_cmd drbd_cmd_handler[] = {
38563 [P_DATA] = { 1, sizeof(struct p_data), receive_Data },
38564@@ -4678,7 +4678,7 @@ static void conn_disconnect(struct drbd_connection *connection)
38565 if (!list_empty(&connection->current_epoch->list))
38566 drbd_err(connection, "ASSERTION FAILED: connection->current_epoch->list not empty\n");
38567 /* ok, no more ee's on the fly, it is safe to reset the epoch_size */
38568- atomic_set(&connection->current_epoch->epoch_size, 0);
38569+ atomic_set_unchecked(&connection->current_epoch->epoch_size, 0);
38570 connection->send.seen_any_write_yet = false;
38571
38572 drbd_info(connection, "Connection closed\n");
38573@@ -5182,7 +5182,7 @@ static int got_IsInSync(struct drbd_connection *connection, struct packet_info *
38574 put_ldev(device);
38575 }
38576 dec_rs_pending(device);
38577- atomic_add(blksize >> 9, &device->rs_sect_in);
38578+ atomic_add_unchecked(blksize >> 9, &device->rs_sect_in);
38579
38580 return 0;
38581 }
38582@@ -5470,7 +5470,7 @@ static int connection_finish_peer_reqs(struct drbd_connection *connection)
38583 struct asender_cmd {
38584 size_t pkt_size;
38585 int (*fn)(struct drbd_connection *connection, struct packet_info *);
38586-};
38587+} __do_const;
38588
38589 static struct asender_cmd asender_tbl[] = {
38590 [P_PING] = { 0, got_Ping },
38591diff --git a/drivers/block/drbd/drbd_worker.c b/drivers/block/drbd/drbd_worker.c
38592index d0fae55..4469096 100644
38593--- a/drivers/block/drbd/drbd_worker.c
38594+++ b/drivers/block/drbd/drbd_worker.c
38595@@ -408,7 +408,7 @@ static int read_for_csum(struct drbd_peer_device *peer_device, sector_t sector,
38596 list_add_tail(&peer_req->w.list, &device->read_ee);
38597 spin_unlock_irq(&device->resource->req_lock);
38598
38599- atomic_add(size >> 9, &device->rs_sect_ev);
38600+ atomic_add_unchecked(size >> 9, &device->rs_sect_ev);
38601 if (drbd_submit_peer_request(device, peer_req, READ, DRBD_FAULT_RS_RD) == 0)
38602 return 0;
38603
38604@@ -553,7 +553,7 @@ static int drbd_rs_number_requests(struct drbd_device *device)
38605 unsigned int sect_in; /* Number of sectors that came in since the last turn */
38606 int number, mxb;
38607
38608- sect_in = atomic_xchg(&device->rs_sect_in, 0);
38609+ sect_in = atomic_xchg_unchecked(&device->rs_sect_in, 0);
38610 device->rs_in_flight -= sect_in;
38611
38612 rcu_read_lock();
38613@@ -1595,8 +1595,8 @@ void drbd_rs_controller_reset(struct drbd_device *device)
38614 struct gendisk *disk = device->ldev->backing_bdev->bd_contains->bd_disk;
38615 struct fifo_buffer *plan;
38616
38617- atomic_set(&device->rs_sect_in, 0);
38618- atomic_set(&device->rs_sect_ev, 0);
38619+ atomic_set_unchecked(&device->rs_sect_in, 0);
38620+ atomic_set_unchecked(&device->rs_sect_ev, 0);
38621 device->rs_in_flight = 0;
38622 device->rs_last_events =
38623 (int)part_stat_read(&disk->part0, sectors[0]) +
38624diff --git a/drivers/block/loop.c b/drivers/block/loop.c
38625index 773e964..e85af00 100644
38626--- a/drivers/block/loop.c
38627+++ b/drivers/block/loop.c
38628@@ -234,7 +234,7 @@ static int __do_lo_send_write(struct file *file,
38629
38630 file_start_write(file);
38631 set_fs(get_ds());
38632- bw = file->f_op->write(file, buf, len, &pos);
38633+ bw = file->f_op->write(file, (const char __force_user *)buf, len, &pos);
38634 set_fs(old_fs);
38635 file_end_write(file);
38636 if (likely(bw == len))
38637diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
38638index 09e628da..7607aaa 100644
38639--- a/drivers/block/pktcdvd.c
38640+++ b/drivers/block/pktcdvd.c
38641@@ -108,7 +108,7 @@ static int pkt_seq_show(struct seq_file *m, void *p);
38642
38643 static sector_t get_zone(sector_t sector, struct pktcdvd_device *pd)
38644 {
38645- return (sector + pd->offset) & ~(sector_t)(pd->settings.size - 1);
38646+ return (sector + pd->offset) & ~(sector_t)(pd->settings.size - 1UL);
38647 }
38648
38649 /*
38650@@ -1890,7 +1890,7 @@ static noinline_for_stack int pkt_probe_settings(struct pktcdvd_device *pd)
38651 return -EROFS;
38652 }
38653 pd->settings.fp = ti.fp;
38654- pd->offset = (be32_to_cpu(ti.track_start) << 2) & (pd->settings.size - 1);
38655+ pd->offset = (be32_to_cpu(ti.track_start) << 2) & (pd->settings.size - 1UL);
38656
38657 if (ti.nwa_v) {
38658 pd->nwa = be32_to_cpu(ti.next_writable);
38659diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
38660index b67066d..515b7f4 100644
38661--- a/drivers/block/rbd.c
38662+++ b/drivers/block/rbd.c
38663@@ -64,7 +64,7 @@
38664 * If the counter is already at its maximum value returns
38665 * -EINVAL without updating it.
38666 */
38667-static int atomic_inc_return_safe(atomic_t *v)
38668+static int __intentional_overflow(-1) atomic_inc_return_safe(atomic_t *v)
38669 {
38670 unsigned int counter;
38671
38672diff --git a/drivers/block/smart1,2.h b/drivers/block/smart1,2.h
38673index e5565fb..71be10b4 100644
38674--- a/drivers/block/smart1,2.h
38675+++ b/drivers/block/smart1,2.h
38676@@ -108,11 +108,11 @@ static unsigned long smart4_intr_pending(ctlr_info_t *h)
38677 }
38678
38679 static struct access_method smart4_access = {
38680- smart4_submit_command,
38681- smart4_intr_mask,
38682- smart4_fifo_full,
38683- smart4_intr_pending,
38684- smart4_completed,
38685+ .submit_command = smart4_submit_command,
38686+ .set_intr_mask = smart4_intr_mask,
38687+ .fifo_full = smart4_fifo_full,
38688+ .intr_pending = smart4_intr_pending,
38689+ .command_completed = smart4_completed,
38690 };
38691
38692 /*
38693@@ -144,11 +144,11 @@ static unsigned long smart2_intr_pending(ctlr_info_t *h)
38694 }
38695
38696 static struct access_method smart2_access = {
38697- smart2_submit_command,
38698- smart2_intr_mask,
38699- smart2_fifo_full,
38700- smart2_intr_pending,
38701- smart2_completed,
38702+ .submit_command = smart2_submit_command,
38703+ .set_intr_mask = smart2_intr_mask,
38704+ .fifo_full = smart2_fifo_full,
38705+ .intr_pending = smart2_intr_pending,
38706+ .command_completed = smart2_completed,
38707 };
38708
38709 /*
38710@@ -180,11 +180,11 @@ static unsigned long smart2e_intr_pending(ctlr_info_t *h)
38711 }
38712
38713 static struct access_method smart2e_access = {
38714- smart2e_submit_command,
38715- smart2e_intr_mask,
38716- smart2e_fifo_full,
38717- smart2e_intr_pending,
38718- smart2e_completed,
38719+ .submit_command = smart2e_submit_command,
38720+ .set_intr_mask = smart2e_intr_mask,
38721+ .fifo_full = smart2e_fifo_full,
38722+ .intr_pending = smart2e_intr_pending,
38723+ .command_completed = smart2e_completed,
38724 };
38725
38726 /*
38727@@ -270,9 +270,9 @@ static unsigned long smart1_intr_pending(ctlr_info_t *h)
38728 }
38729
38730 static struct access_method smart1_access = {
38731- smart1_submit_command,
38732- smart1_intr_mask,
38733- smart1_fifo_full,
38734- smart1_intr_pending,
38735- smart1_completed,
38736+ .submit_command = smart1_submit_command,
38737+ .set_intr_mask = smart1_intr_mask,
38738+ .fifo_full = smart1_fifo_full,
38739+ .intr_pending = smart1_intr_pending,
38740+ .command_completed = smart1_completed,
38741 };
38742diff --git a/drivers/bluetooth/btwilink.c b/drivers/bluetooth/btwilink.c
38743index 55c135b..9f8d60c 100644
38744--- a/drivers/bluetooth/btwilink.c
38745+++ b/drivers/bluetooth/btwilink.c
38746@@ -288,7 +288,7 @@ static int ti_st_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
38747
38748 static int bt_ti_probe(struct platform_device *pdev)
38749 {
38750- static struct ti_st *hst;
38751+ struct ti_st *hst;
38752 struct hci_dev *hdev;
38753 int err;
38754
38755diff --git a/drivers/cdrom/cdrom.c b/drivers/cdrom/cdrom.c
38756index 5d28a45..a538f90 100644
38757--- a/drivers/cdrom/cdrom.c
38758+++ b/drivers/cdrom/cdrom.c
38759@@ -610,7 +610,6 @@ int register_cdrom(struct cdrom_device_info *cdi)
38760 ENSURE(reset, CDC_RESET);
38761 ENSURE(generic_packet, CDC_GENERIC_PACKET);
38762 cdi->mc_flags = 0;
38763- cdo->n_minors = 0;
38764 cdi->options = CDO_USE_FFLAGS;
38765
38766 if (autoclose == 1 && CDROM_CAN(CDC_CLOSE_TRAY))
38767@@ -630,8 +629,11 @@ int register_cdrom(struct cdrom_device_info *cdi)
38768 else
38769 cdi->cdda_method = CDDA_OLD;
38770
38771- if (!cdo->generic_packet)
38772- cdo->generic_packet = cdrom_dummy_generic_packet;
38773+ if (!cdo->generic_packet) {
38774+ pax_open_kernel();
38775+ *(void **)&cdo->generic_packet = cdrom_dummy_generic_packet;
38776+ pax_close_kernel();
38777+ }
38778
38779 cd_dbg(CD_REG_UNREG, "drive \"/dev/%s\" registered\n", cdi->name);
38780 mutex_lock(&cdrom_mutex);
38781@@ -652,7 +654,6 @@ void unregister_cdrom(struct cdrom_device_info *cdi)
38782 if (cdi->exit)
38783 cdi->exit(cdi);
38784
38785- cdi->ops->n_minors--;
38786 cd_dbg(CD_REG_UNREG, "drive \"/dev/%s\" unregistered\n", cdi->name);
38787 }
38788
38789@@ -2126,7 +2127,7 @@ static int cdrom_read_cdda_old(struct cdrom_device_info *cdi, __u8 __user *ubuf,
38790 */
38791 nr = nframes;
38792 do {
38793- cgc.buffer = kmalloc(CD_FRAMESIZE_RAW * nr, GFP_KERNEL);
38794+ cgc.buffer = kzalloc(CD_FRAMESIZE_RAW * nr, GFP_KERNEL);
38795 if (cgc.buffer)
38796 break;
38797
38798@@ -3434,7 +3435,7 @@ static int cdrom_print_info(const char *header, int val, char *info,
38799 struct cdrom_device_info *cdi;
38800 int ret;
38801
38802- ret = scnprintf(info + *pos, max_size - *pos, header);
38803+ ret = scnprintf(info + *pos, max_size - *pos, "%s", header);
38804 if (!ret)
38805 return 1;
38806
38807diff --git a/drivers/cdrom/gdrom.c b/drivers/cdrom/gdrom.c
38808index 584bc31..e64a12c 100644
38809--- a/drivers/cdrom/gdrom.c
38810+++ b/drivers/cdrom/gdrom.c
38811@@ -491,7 +491,6 @@ static struct cdrom_device_ops gdrom_ops = {
38812 .audio_ioctl = gdrom_audio_ioctl,
38813 .capability = CDC_MULTI_SESSION | CDC_MEDIA_CHANGED |
38814 CDC_RESET | CDC_DRIVE_STATUS | CDC_CD_R,
38815- .n_minors = 1,
38816 };
38817
38818 static int gdrom_bdops_open(struct block_device *bdev, fmode_t mode)
38819diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
38820index a4af822..ed58cd1 100644
38821--- a/drivers/char/Kconfig
38822+++ b/drivers/char/Kconfig
38823@@ -17,7 +17,8 @@ config DEVMEM
38824
38825 config DEVKMEM
38826 bool "/dev/kmem virtual device support"
38827- default y
38828+ default n
38829+ depends on !GRKERNSEC_KMEM
38830 help
38831 Say Y here if you want to support the /dev/kmem device. The
38832 /dev/kmem device is rarely used, but can be used for certain
38833@@ -586,6 +587,7 @@ config DEVPORT
38834 bool
38835 depends on !M68K
38836 depends on ISA || PCI
38837+ depends on !GRKERNSEC_KMEM
38838 default y
38839
38840 source "drivers/s390/char/Kconfig"
38841diff --git a/drivers/char/agp/compat_ioctl.c b/drivers/char/agp/compat_ioctl.c
38842index a48e05b..6bac831 100644
38843--- a/drivers/char/agp/compat_ioctl.c
38844+++ b/drivers/char/agp/compat_ioctl.c
38845@@ -108,7 +108,7 @@ static int compat_agpioc_reserve_wrap(struct agp_file_private *priv, void __user
38846 return -ENOMEM;
38847 }
38848
38849- if (copy_from_user(usegment, (void __user *) ureserve.seg_list,
38850+ if (copy_from_user(usegment, (void __force_user *) ureserve.seg_list,
38851 sizeof(*usegment) * ureserve.seg_count)) {
38852 kfree(usegment);
38853 kfree(ksegment);
38854diff --git a/drivers/char/agp/frontend.c b/drivers/char/agp/frontend.c
38855index 09f17eb..8531d2f 100644
38856--- a/drivers/char/agp/frontend.c
38857+++ b/drivers/char/agp/frontend.c
38858@@ -806,7 +806,7 @@ static int agpioc_reserve_wrap(struct agp_file_private *priv, void __user *arg)
38859 if (copy_from_user(&reserve, arg, sizeof(struct agp_region)))
38860 return -EFAULT;
38861
38862- if ((unsigned) reserve.seg_count >= ~0U/sizeof(struct agp_segment))
38863+ if ((unsigned) reserve.seg_count >= ~0U/sizeof(struct agp_segment_priv))
38864 return -EFAULT;
38865
38866 client = agp_find_client_by_pid(reserve.pid);
38867@@ -836,7 +836,7 @@ static int agpioc_reserve_wrap(struct agp_file_private *priv, void __user *arg)
38868 if (segment == NULL)
38869 return -ENOMEM;
38870
38871- if (copy_from_user(segment, (void __user *) reserve.seg_list,
38872+ if (copy_from_user(segment, (void __force_user *) reserve.seg_list,
38873 sizeof(struct agp_segment) * reserve.seg_count)) {
38874 kfree(segment);
38875 return -EFAULT;
38876diff --git a/drivers/char/genrtc.c b/drivers/char/genrtc.c
38877index 4f94375..413694e 100644
38878--- a/drivers/char/genrtc.c
38879+++ b/drivers/char/genrtc.c
38880@@ -273,6 +273,7 @@ static int gen_rtc_ioctl(struct file *file,
38881 switch (cmd) {
38882
38883 case RTC_PLL_GET:
38884+ memset(&pll, 0, sizeof(pll));
38885 if (get_rtc_pll(&pll))
38886 return -EINVAL;
38887 else
38888diff --git a/drivers/char/hpet.c b/drivers/char/hpet.c
38889index 5c0baa9..44011b1 100644
38890--- a/drivers/char/hpet.c
38891+++ b/drivers/char/hpet.c
38892@@ -575,7 +575,7 @@ static inline unsigned long hpet_time_div(struct hpets *hpets,
38893 }
38894
38895 static int
38896-hpet_ioctl_common(struct hpet_dev *devp, int cmd, unsigned long arg,
38897+hpet_ioctl_common(struct hpet_dev *devp, unsigned int cmd, unsigned long arg,
38898 struct hpet_info *info)
38899 {
38900 struct hpet_timer __iomem *timer;
38901diff --git a/drivers/char/i8k.c b/drivers/char/i8k.c
38902index 24cc4ed..f9807cf 100644
38903--- a/drivers/char/i8k.c
38904+++ b/drivers/char/i8k.c
38905@@ -788,7 +788,7 @@ static const struct i8k_config_data i8k_config_data[] = {
38906 },
38907 };
38908
38909-static struct dmi_system_id i8k_dmi_table[] __initdata = {
38910+static const struct dmi_system_id i8k_dmi_table[] __initconst = {
38911 {
38912 .ident = "Dell Inspiron",
38913 .matches = {
38914diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c
38915index 9bb5928..57a7801 100644
38916--- a/drivers/char/ipmi/ipmi_msghandler.c
38917+++ b/drivers/char/ipmi/ipmi_msghandler.c
38918@@ -436,7 +436,7 @@ struct ipmi_smi {
38919 struct proc_dir_entry *proc_dir;
38920 char proc_dir_name[10];
38921
38922- atomic_t stats[IPMI_NUM_STATS];
38923+ atomic_unchecked_t stats[IPMI_NUM_STATS];
38924
38925 /*
38926 * run_to_completion duplicate of smb_info, smi_info
38927@@ -468,9 +468,9 @@ static LIST_HEAD(smi_watchers);
38928 static DEFINE_MUTEX(smi_watchers_mutex);
38929
38930 #define ipmi_inc_stat(intf, stat) \
38931- atomic_inc(&(intf)->stats[IPMI_STAT_ ## stat])
38932+ atomic_inc_unchecked(&(intf)->stats[IPMI_STAT_ ## stat])
38933 #define ipmi_get_stat(intf, stat) \
38934- ((unsigned int) atomic_read(&(intf)->stats[IPMI_STAT_ ## stat]))
38935+ ((unsigned int) atomic_read_unchecked(&(intf)->stats[IPMI_STAT_ ## stat]))
38936
38937 static char *addr_src_to_str[] = { "invalid", "hotmod", "hardcoded", "SPMI",
38938 "ACPI", "SMBIOS", "PCI",
38939@@ -2828,7 +2828,7 @@ int ipmi_register_smi(struct ipmi_smi_handlers *handlers,
38940 INIT_LIST_HEAD(&intf->cmd_rcvrs);
38941 init_waitqueue_head(&intf->waitq);
38942 for (i = 0; i < IPMI_NUM_STATS; i++)
38943- atomic_set(&intf->stats[i], 0);
38944+ atomic_set_unchecked(&intf->stats[i], 0);
38945
38946 intf->proc_dir = NULL;
38947
38948diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c
38949index 518585c..6c985cef 100644
38950--- a/drivers/char/ipmi/ipmi_si_intf.c
38951+++ b/drivers/char/ipmi/ipmi_si_intf.c
38952@@ -289,7 +289,7 @@ struct smi_info {
38953 unsigned char slave_addr;
38954
38955 /* Counters and things for the proc filesystem. */
38956- atomic_t stats[SI_NUM_STATS];
38957+ atomic_unchecked_t stats[SI_NUM_STATS];
38958
38959 struct task_struct *thread;
38960
38961@@ -298,9 +298,9 @@ struct smi_info {
38962 };
38963
38964 #define smi_inc_stat(smi, stat) \
38965- atomic_inc(&(smi)->stats[SI_STAT_ ## stat])
38966+ atomic_inc_unchecked(&(smi)->stats[SI_STAT_ ## stat])
38967 #define smi_get_stat(smi, stat) \
38968- ((unsigned int) atomic_read(&(smi)->stats[SI_STAT_ ## stat]))
38969+ ((unsigned int) atomic_read_unchecked(&(smi)->stats[SI_STAT_ ## stat]))
38970
38971 #define SI_MAX_PARMS 4
38972
38973@@ -3498,7 +3498,7 @@ static int try_smi_init(struct smi_info *new_smi)
38974 atomic_set(&new_smi->req_events, 0);
38975 new_smi->run_to_completion = false;
38976 for (i = 0; i < SI_NUM_STATS; i++)
38977- atomic_set(&new_smi->stats[i], 0);
38978+ atomic_set_unchecked(&new_smi->stats[i], 0);
38979
38980 new_smi->interrupt_disabled = true;
38981 atomic_set(&new_smi->need_watch, 0);
38982diff --git a/drivers/char/mem.c b/drivers/char/mem.c
38983index 297110c..3f69b43 100644
38984--- a/drivers/char/mem.c
38985+++ b/drivers/char/mem.c
38986@@ -18,6 +18,7 @@
38987 #include <linux/raw.h>
38988 #include <linux/tty.h>
38989 #include <linux/capability.h>
38990+#include <linux/security.h>
38991 #include <linux/ptrace.h>
38992 #include <linux/device.h>
38993 #include <linux/highmem.h>
38994@@ -36,6 +37,10 @@
38995
38996 #define DEVPORT_MINOR 4
38997
38998+#if defined(CONFIG_GRKERNSEC) && !defined(CONFIG_GRKERNSEC_NO_RBAC)
38999+extern const struct file_operations grsec_fops;
39000+#endif
39001+
39002 static inline unsigned long size_inside_page(unsigned long start,
39003 unsigned long size)
39004 {
39005@@ -67,9 +72,13 @@ static inline int range_is_allowed(unsigned long pfn, unsigned long size)
39006
39007 while (cursor < to) {
39008 if (!devmem_is_allowed(pfn)) {
39009+#ifdef CONFIG_GRKERNSEC_KMEM
39010+ gr_handle_mem_readwrite(from, to);
39011+#else
39012 printk(KERN_INFO
39013 "Program %s tried to access /dev/mem between %Lx->%Lx.\n",
39014 current->comm, from, to);
39015+#endif
39016 return 0;
39017 }
39018 cursor += PAGE_SIZE;
39019@@ -77,6 +86,11 @@ static inline int range_is_allowed(unsigned long pfn, unsigned long size)
39020 }
39021 return 1;
39022 }
39023+#elif defined(CONFIG_GRKERNSEC_KMEM)
39024+static inline int range_is_allowed(unsigned long pfn, unsigned long size)
39025+{
39026+ return 0;
39027+}
39028 #else
39029 static inline int range_is_allowed(unsigned long pfn, unsigned long size)
39030 {
39031@@ -124,7 +138,8 @@ static ssize_t read_mem(struct file *file, char __user *buf,
39032 #endif
39033
39034 while (count > 0) {
39035- unsigned long remaining;
39036+ unsigned long remaining = 0;
39037+ char *temp;
39038
39039 sz = size_inside_page(p, count);
39040
39041@@ -140,7 +155,24 @@ static ssize_t read_mem(struct file *file, char __user *buf,
39042 if (!ptr)
39043 return -EFAULT;
39044
39045- remaining = copy_to_user(buf, ptr, sz);
39046+#ifdef CONFIG_PAX_USERCOPY
39047+ temp = kmalloc(sz, GFP_KERNEL|GFP_USERCOPY);
39048+ if (!temp) {
39049+ unxlate_dev_mem_ptr(p, ptr);
39050+ return -ENOMEM;
39051+ }
39052+ remaining = probe_kernel_read(temp, ptr, sz);
39053+#else
39054+ temp = ptr;
39055+#endif
39056+
39057+ if (!remaining)
39058+ remaining = copy_to_user(buf, temp, sz);
39059+
39060+#ifdef CONFIG_PAX_USERCOPY
39061+ kfree(temp);
39062+#endif
39063+
39064 unxlate_dev_mem_ptr(p, ptr);
39065 if (remaining)
39066 return -EFAULT;
39067@@ -380,9 +412,8 @@ static ssize_t read_kmem(struct file *file, char __user *buf,
39068 size_t count, loff_t *ppos)
39069 {
39070 unsigned long p = *ppos;
39071- ssize_t low_count, read, sz;
39072+ ssize_t low_count, read, sz, err = 0;
39073 char *kbuf; /* k-addr because vread() takes vmlist_lock rwlock */
39074- int err = 0;
39075
39076 read = 0;
39077 if (p < (unsigned long) high_memory) {
39078@@ -404,6 +435,8 @@ static ssize_t read_kmem(struct file *file, char __user *buf,
39079 }
39080 #endif
39081 while (low_count > 0) {
39082+ char *temp;
39083+
39084 sz = size_inside_page(p, low_count);
39085
39086 /*
39087@@ -413,7 +446,23 @@ static ssize_t read_kmem(struct file *file, char __user *buf,
39088 */
39089 kbuf = xlate_dev_kmem_ptr((void *)p);
39090
39091- if (copy_to_user(buf, kbuf, sz))
39092+#ifdef CONFIG_PAX_USERCOPY
39093+ temp = kmalloc(sz, GFP_KERNEL|GFP_USERCOPY);
39094+ if (!temp)
39095+ return -ENOMEM;
39096+ err = probe_kernel_read(temp, kbuf, sz);
39097+#else
39098+ temp = kbuf;
39099+#endif
39100+
39101+ if (!err)
39102+ err = copy_to_user(buf, temp, sz);
39103+
39104+#ifdef CONFIG_PAX_USERCOPY
39105+ kfree(temp);
39106+#endif
39107+
39108+ if (err)
39109 return -EFAULT;
39110 buf += sz;
39111 p += sz;
39112@@ -804,6 +853,9 @@ static const struct memdev {
39113 #ifdef CONFIG_PRINTK
39114 [11] = { "kmsg", 0644, &kmsg_fops, 0 },
39115 #endif
39116+#if defined(CONFIG_GRKERNSEC) && !defined(CONFIG_GRKERNSEC_NO_RBAC)
39117+ [13] = { "grsec",S_IRUSR | S_IWUGO, &grsec_fops, 0 },
39118+#endif
39119 };
39120
39121 static int memory_open(struct inode *inode, struct file *filp)
39122@@ -865,7 +917,7 @@ static int __init chr_dev_init(void)
39123 continue;
39124
39125 device_create(mem_class, NULL, MKDEV(MEM_MAJOR, minor),
39126- NULL, devlist[minor].name);
39127+ NULL, "%s", devlist[minor].name);
39128 }
39129
39130 return tty_init();
39131diff --git a/drivers/char/nvram.c b/drivers/char/nvram.c
39132index 9df78e2..01ba9ae 100644
39133--- a/drivers/char/nvram.c
39134+++ b/drivers/char/nvram.c
39135@@ -247,7 +247,7 @@ static ssize_t nvram_read(struct file *file, char __user *buf,
39136
39137 spin_unlock_irq(&rtc_lock);
39138
39139- if (copy_to_user(buf, contents, tmp - contents))
39140+ if (tmp - contents > sizeof(contents) || copy_to_user(buf, contents, tmp - contents))
39141 return -EFAULT;
39142
39143 *ppos = i;
39144diff --git a/drivers/char/pcmcia/synclink_cs.c b/drivers/char/pcmcia/synclink_cs.c
39145index 0ea9986..e7b07e4 100644
39146--- a/drivers/char/pcmcia/synclink_cs.c
39147+++ b/drivers/char/pcmcia/synclink_cs.c
39148@@ -2345,7 +2345,7 @@ static void mgslpc_close(struct tty_struct *tty, struct file * filp)
39149
39150 if (debug_level >= DEBUG_LEVEL_INFO)
39151 printk("%s(%d):mgslpc_close(%s) entry, count=%d\n",
39152- __FILE__, __LINE__, info->device_name, port->count);
39153+ __FILE__, __LINE__, info->device_name, atomic_read(&port->count));
39154
39155 if (tty_port_close_start(port, tty, filp) == 0)
39156 goto cleanup;
39157@@ -2363,7 +2363,7 @@ static void mgslpc_close(struct tty_struct *tty, struct file * filp)
39158 cleanup:
39159 if (debug_level >= DEBUG_LEVEL_INFO)
39160 printk("%s(%d):mgslpc_close(%s) exit, count=%d\n", __FILE__, __LINE__,
39161- tty->driver->name, port->count);
39162+ tty->driver->name, atomic_read(&port->count));
39163 }
39164
39165 /* Wait until the transmitter is empty.
39166@@ -2505,7 +2505,7 @@ static int mgslpc_open(struct tty_struct *tty, struct file * filp)
39167
39168 if (debug_level >= DEBUG_LEVEL_INFO)
39169 printk("%s(%d):mgslpc_open(%s), old ref count = %d\n",
39170- __FILE__, __LINE__, tty->driver->name, port->count);
39171+ __FILE__, __LINE__, tty->driver->name, atomic_read(&port->count));
39172
39173 /* If port is closing, signal caller to try again */
39174 if (port->flags & ASYNC_CLOSING){
39175@@ -2525,11 +2525,11 @@ static int mgslpc_open(struct tty_struct *tty, struct file * filp)
39176 goto cleanup;
39177 }
39178 spin_lock(&port->lock);
39179- port->count++;
39180+ atomic_inc(&port->count);
39181 spin_unlock(&port->lock);
39182 spin_unlock_irqrestore(&info->netlock, flags);
39183
39184- if (port->count == 1) {
39185+ if (atomic_read(&port->count) == 1) {
39186 /* 1st open on this device, init hardware */
39187 retval = startup(info, tty);
39188 if (retval < 0)
39189@@ -3918,7 +3918,7 @@ static int hdlcdev_attach(struct net_device *dev, unsigned short encoding,
39190 unsigned short new_crctype;
39191
39192 /* return error if TTY interface open */
39193- if (info->port.count)
39194+ if (atomic_read(&info->port.count))
39195 return -EBUSY;
39196
39197 switch (encoding)
39198@@ -4022,7 +4022,7 @@ static int hdlcdev_open(struct net_device *dev)
39199
39200 /* arbitrate between network and tty opens */
39201 spin_lock_irqsave(&info->netlock, flags);
39202- if (info->port.count != 0 || info->netcount != 0) {
39203+ if (atomic_read(&info->port.count) != 0 || info->netcount != 0) {
39204 printk(KERN_WARNING "%s: hdlc_open returning busy\n", dev->name);
39205 spin_unlock_irqrestore(&info->netlock, flags);
39206 return -EBUSY;
39207@@ -4112,7 +4112,7 @@ static int hdlcdev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
39208 printk("%s:hdlcdev_ioctl(%s)\n", __FILE__, dev->name);
39209
39210 /* return error if TTY interface open */
39211- if (info->port.count)
39212+ if (atomic_read(&info->port.count))
39213 return -EBUSY;
39214
39215 if (cmd != SIOCWANDEV)
39216diff --git a/drivers/char/random.c b/drivers/char/random.c
39217index 9cd6968..6416f00 100644
39218--- a/drivers/char/random.c
39219+++ b/drivers/char/random.c
39220@@ -289,9 +289,6 @@
39221 /*
39222 * To allow fractional bits to be tracked, the entropy_count field is
39223 * denominated in units of 1/8th bits.
39224- *
39225- * 2*(ENTROPY_SHIFT + log2(poolbits)) must <= 31, or the multiply in
39226- * credit_entropy_bits() needs to be 64 bits wide.
39227 */
39228 #define ENTROPY_SHIFT 3
39229 #define ENTROPY_BITS(r) ((r)->entropy_count >> ENTROPY_SHIFT)
39230@@ -439,9 +436,9 @@ struct entropy_store {
39231 };
39232
39233 static void push_to_pool(struct work_struct *work);
39234-static __u32 input_pool_data[INPUT_POOL_WORDS];
39235-static __u32 blocking_pool_data[OUTPUT_POOL_WORDS];
39236-static __u32 nonblocking_pool_data[OUTPUT_POOL_WORDS];
39237+static __u32 input_pool_data[INPUT_POOL_WORDS] __latent_entropy;
39238+static __u32 blocking_pool_data[OUTPUT_POOL_WORDS] __latent_entropy;
39239+static __u32 nonblocking_pool_data[OUTPUT_POOL_WORDS] __latent_entropy;
39240
39241 static struct entropy_store input_pool = {
39242 .poolinfo = &poolinfo_table[0],
39243@@ -635,7 +632,7 @@ retry:
39244 /* The +2 corresponds to the /4 in the denominator */
39245
39246 do {
39247- unsigned int anfrac = min(pnfrac, pool_size/2);
39248+ u64 anfrac = min(pnfrac, pool_size/2);
39249 unsigned int add =
39250 ((pool_size - entropy_count)*anfrac*3) >> s;
39251
39252@@ -1207,7 +1204,7 @@ static ssize_t extract_entropy_user(struct entropy_store *r, void __user *buf,
39253
39254 extract_buf(r, tmp);
39255 i = min_t(int, nbytes, EXTRACT_SIZE);
39256- if (copy_to_user(buf, tmp, i)) {
39257+ if (i > sizeof(tmp) || copy_to_user(buf, tmp, i)) {
39258 ret = -EFAULT;
39259 break;
39260 }
39261@@ -1590,7 +1587,7 @@ static char sysctl_bootid[16];
39262 static int proc_do_uuid(struct ctl_table *table, int write,
39263 void __user *buffer, size_t *lenp, loff_t *ppos)
39264 {
39265- struct ctl_table fake_table;
39266+ ctl_table_no_const fake_table;
39267 unsigned char buf[64], tmp_uuid[16], *uuid;
39268
39269 uuid = table->data;
39270@@ -1620,7 +1617,7 @@ static int proc_do_uuid(struct ctl_table *table, int write,
39271 static int proc_do_entropy(struct ctl_table *table, int write,
39272 void __user *buffer, size_t *lenp, loff_t *ppos)
39273 {
39274- struct ctl_table fake_table;
39275+ ctl_table_no_const fake_table;
39276 int entropy_count;
39277
39278 entropy_count = *(int *)table->data >> ENTROPY_SHIFT;
39279diff --git a/drivers/char/sonypi.c b/drivers/char/sonypi.c
39280index e496dae..3db53b6 100644
39281--- a/drivers/char/sonypi.c
39282+++ b/drivers/char/sonypi.c
39283@@ -54,6 +54,7 @@
39284
39285 #include <asm/uaccess.h>
39286 #include <asm/io.h>
39287+#include <asm/local.h>
39288
39289 #include <linux/sonypi.h>
39290
39291@@ -490,7 +491,7 @@ static struct sonypi_device {
39292 spinlock_t fifo_lock;
39293 wait_queue_head_t fifo_proc_list;
39294 struct fasync_struct *fifo_async;
39295- int open_count;
39296+ local_t open_count;
39297 int model;
39298 struct input_dev *input_jog_dev;
39299 struct input_dev *input_key_dev;
39300@@ -892,7 +893,7 @@ static int sonypi_misc_fasync(int fd, struct file *filp, int on)
39301 static int sonypi_misc_release(struct inode *inode, struct file *file)
39302 {
39303 mutex_lock(&sonypi_device.lock);
39304- sonypi_device.open_count--;
39305+ local_dec(&sonypi_device.open_count);
39306 mutex_unlock(&sonypi_device.lock);
39307 return 0;
39308 }
39309@@ -901,9 +902,9 @@ static int sonypi_misc_open(struct inode *inode, struct file *file)
39310 {
39311 mutex_lock(&sonypi_device.lock);
39312 /* Flush input queue on first open */
39313- if (!sonypi_device.open_count)
39314+ if (!local_read(&sonypi_device.open_count))
39315 kfifo_reset(&sonypi_device.fifo);
39316- sonypi_device.open_count++;
39317+ local_inc(&sonypi_device.open_count);
39318 mutex_unlock(&sonypi_device.lock);
39319
39320 return 0;
39321@@ -1491,7 +1492,7 @@ static struct platform_driver sonypi_driver = {
39322
39323 static struct platform_device *sonypi_platform_device;
39324
39325-static struct dmi_system_id __initdata sonypi_dmi_table[] = {
39326+static const struct dmi_system_id __initconst sonypi_dmi_table[] = {
39327 {
39328 .ident = "Sony Vaio",
39329 .matches = {
39330diff --git a/drivers/char/tpm/tpm_acpi.c b/drivers/char/tpm/tpm_acpi.c
39331index 565a947..dcdc06e 100644
39332--- a/drivers/char/tpm/tpm_acpi.c
39333+++ b/drivers/char/tpm/tpm_acpi.c
39334@@ -98,11 +98,12 @@ int read_log(struct tpm_bios_log *log)
39335 virt = acpi_os_map_iomem(start, len);
39336 if (!virt) {
39337 kfree(log->bios_event_log);
39338+ log->bios_event_log = NULL;
39339 printk("%s: ERROR - Unable to map memory\n", __func__);
39340 return -EIO;
39341 }
39342
39343- memcpy_fromio(log->bios_event_log, virt, len);
39344+ memcpy_fromio(log->bios_event_log, (const char __force_kernel *)virt, len);
39345
39346 acpi_os_unmap_iomem(virt, len);
39347 return 0;
39348diff --git a/drivers/char/tpm/tpm_eventlog.c b/drivers/char/tpm/tpm_eventlog.c
39349index 3a56a13..f8cbd25 100644
39350--- a/drivers/char/tpm/tpm_eventlog.c
39351+++ b/drivers/char/tpm/tpm_eventlog.c
39352@@ -95,7 +95,7 @@ static void *tpm_bios_measurements_start(struct seq_file *m, loff_t *pos)
39353 event = addr;
39354
39355 if ((event->event_type == 0 && event->event_size == 0) ||
39356- ((addr + sizeof(struct tcpa_event) + event->event_size) >= limit))
39357+ (event->event_size >= limit - addr - sizeof(struct tcpa_event)))
39358 return NULL;
39359
39360 return addr;
39361@@ -120,7 +120,7 @@ static void *tpm_bios_measurements_next(struct seq_file *m, void *v,
39362 return NULL;
39363
39364 if ((event->event_type == 0 && event->event_size == 0) ||
39365- ((v + sizeof(struct tcpa_event) + event->event_size) >= limit))
39366+ (event->event_size >= limit - v - sizeof(struct tcpa_event)))
39367 return NULL;
39368
39369 (*pos)++;
39370@@ -213,7 +213,8 @@ static int tpm_binary_bios_measurements_show(struct seq_file *m, void *v)
39371 int i;
39372
39373 for (i = 0; i < sizeof(struct tcpa_event) + event->event_size; i++)
39374- seq_putc(m, data[i]);
39375+ if (!seq_putc(m, data[i]))
39376+ return -EFAULT;
39377
39378 return 0;
39379 }
39380diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c
39381index 72d7028..1586601 100644
39382--- a/drivers/char/virtio_console.c
39383+++ b/drivers/char/virtio_console.c
39384@@ -685,7 +685,7 @@ static ssize_t fill_readbuf(struct port *port, char __user *out_buf,
39385 if (to_user) {
39386 ssize_t ret;
39387
39388- ret = copy_to_user(out_buf, buf->buf + buf->offset, out_count);
39389+ ret = copy_to_user((char __force_user *)out_buf, buf->buf + buf->offset, out_count);
39390 if (ret)
39391 return -EFAULT;
39392 } else {
39393@@ -789,7 +789,7 @@ static ssize_t port_fops_read(struct file *filp, char __user *ubuf,
39394 if (!port_has_data(port) && !port->host_connected)
39395 return 0;
39396
39397- return fill_readbuf(port, ubuf, count, true);
39398+ return fill_readbuf(port, (char __force_kernel *)ubuf, count, true);
39399 }
39400
39401 static int wait_port_writable(struct port *port, bool nonblock)
39402diff --git a/drivers/clk/clk-composite.c b/drivers/clk/clk-composite.c
39403index 956b7e5..b655045 100644
39404--- a/drivers/clk/clk-composite.c
39405+++ b/drivers/clk/clk-composite.c
39406@@ -197,7 +197,7 @@ struct clk *clk_register_composite(struct device *dev, const char *name,
39407 struct clk *clk;
39408 struct clk_init_data init;
39409 struct clk_composite *composite;
39410- struct clk_ops *clk_composite_ops;
39411+ clk_ops_no_const *clk_composite_ops;
39412
39413 composite = kzalloc(sizeof(*composite), GFP_KERNEL);
39414 if (!composite) {
39415diff --git a/drivers/clk/hisilicon/clk-hi3620.c b/drivers/clk/hisilicon/clk-hi3620.c
39416index 2e4f6d4..b4cf487 100644
39417--- a/drivers/clk/hisilicon/clk-hi3620.c
39418+++ b/drivers/clk/hisilicon/clk-hi3620.c
39419@@ -38,44 +38,44 @@
39420 #include "clk.h"
39421
39422 /* clock parent list */
39423-static const char *timer0_mux_p[] __initconst = { "osc32k", "timerclk01", };
39424-static const char *timer1_mux_p[] __initconst = { "osc32k", "timerclk01", };
39425-static const char *timer2_mux_p[] __initconst = { "osc32k", "timerclk23", };
39426-static const char *timer3_mux_p[] __initconst = { "osc32k", "timerclk23", };
39427-static const char *timer4_mux_p[] __initconst = { "osc32k", "timerclk45", };
39428-static const char *timer5_mux_p[] __initconst = { "osc32k", "timerclk45", };
39429-static const char *timer6_mux_p[] __initconst = { "osc32k", "timerclk67", };
39430-static const char *timer7_mux_p[] __initconst = { "osc32k", "timerclk67", };
39431-static const char *timer8_mux_p[] __initconst = { "osc32k", "timerclk89", };
39432-static const char *timer9_mux_p[] __initconst = { "osc32k", "timerclk89", };
39433-static const char *uart0_mux_p[] __initconst = { "osc26m", "pclk", };
39434-static const char *uart1_mux_p[] __initconst = { "osc26m", "pclk", };
39435-static const char *uart2_mux_p[] __initconst = { "osc26m", "pclk", };
39436-static const char *uart3_mux_p[] __initconst = { "osc26m", "pclk", };
39437-static const char *uart4_mux_p[] __initconst = { "osc26m", "pclk", };
39438-static const char *spi0_mux_p[] __initconst = { "osc26m", "rclk_cfgaxi", };
39439-static const char *spi1_mux_p[] __initconst = { "osc26m", "rclk_cfgaxi", };
39440-static const char *spi2_mux_p[] __initconst = { "osc26m", "rclk_cfgaxi", };
39441+static const char * const timer0_mux_p[] __initconst = { "osc32k", "timerclk01", };
39442+static const char * const timer1_mux_p[] __initconst = { "osc32k", "timerclk01", };
39443+static const char * const timer2_mux_p[] __initconst = { "osc32k", "timerclk23", };
39444+static const char * const timer3_mux_p[] __initconst = { "osc32k", "timerclk23", };
39445+static const char * const timer4_mux_p[] __initconst = { "osc32k", "timerclk45", };
39446+static const char * const timer5_mux_p[] __initconst = { "osc32k", "timerclk45", };
39447+static const char * const timer6_mux_p[] __initconst = { "osc32k", "timerclk67", };
39448+static const char * const timer7_mux_p[] __initconst = { "osc32k", "timerclk67", };
39449+static const char * const timer8_mux_p[] __initconst = { "osc32k", "timerclk89", };
39450+static const char * const timer9_mux_p[] __initconst = { "osc32k", "timerclk89", };
39451+static const char * const uart0_mux_p[] __initconst = { "osc26m", "pclk", };
39452+static const char * const uart1_mux_p[] __initconst = { "osc26m", "pclk", };
39453+static const char * const uart2_mux_p[] __initconst = { "osc26m", "pclk", };
39454+static const char * const uart3_mux_p[] __initconst = { "osc26m", "pclk", };
39455+static const char * const uart4_mux_p[] __initconst = { "osc26m", "pclk", };
39456+static const char * const spi0_mux_p[] __initconst = { "osc26m", "rclk_cfgaxi", };
39457+static const char * const spi1_mux_p[] __initconst = { "osc26m", "rclk_cfgaxi", };
39458+static const char * const spi2_mux_p[] __initconst = { "osc26m", "rclk_cfgaxi", };
39459 /* share axi parent */
39460-static const char *saxi_mux_p[] __initconst = { "armpll3", "armpll2", };
39461-static const char *pwm0_mux_p[] __initconst = { "osc32k", "osc26m", };
39462-static const char *pwm1_mux_p[] __initconst = { "osc32k", "osc26m", };
39463-static const char *sd_mux_p[] __initconst = { "armpll2", "armpll3", };
39464-static const char *mmc1_mux_p[] __initconst = { "armpll2", "armpll3", };
39465-static const char *mmc1_mux2_p[] __initconst = { "osc26m", "mmc1_div", };
39466-static const char *g2d_mux_p[] __initconst = { "armpll2", "armpll3", };
39467-static const char *venc_mux_p[] __initconst = { "armpll2", "armpll3", };
39468-static const char *vdec_mux_p[] __initconst = { "armpll2", "armpll3", };
39469-static const char *vpp_mux_p[] __initconst = { "armpll2", "armpll3", };
39470-static const char *edc0_mux_p[] __initconst = { "armpll2", "armpll3", };
39471-static const char *ldi0_mux_p[] __initconst = { "armpll2", "armpll4",
39472+static const char * const saxi_mux_p[] __initconst = { "armpll3", "armpll2", };
39473+static const char * const pwm0_mux_p[] __initconst = { "osc32k", "osc26m", };
39474+static const char * const pwm1_mux_p[] __initconst = { "osc32k", "osc26m", };
39475+static const char * const sd_mux_p[] __initconst = { "armpll2", "armpll3", };
39476+static const char * const mmc1_mux_p[] __initconst = { "armpll2", "armpll3", };
39477+static const char * const mmc1_mux2_p[] __initconst = { "osc26m", "mmc1_div", };
39478+static const char * const g2d_mux_p[] __initconst = { "armpll2", "armpll3", };
39479+static const char * const venc_mux_p[] __initconst = { "armpll2", "armpll3", };
39480+static const char * const vdec_mux_p[] __initconst = { "armpll2", "armpll3", };
39481+static const char * const vpp_mux_p[] __initconst = { "armpll2", "armpll3", };
39482+static const char * const edc0_mux_p[] __initconst = { "armpll2", "armpll3", };
39483+static const char * const ldi0_mux_p[] __initconst = { "armpll2", "armpll4",
39484 "armpll3", "armpll5", };
39485-static const char *edc1_mux_p[] __initconst = { "armpll2", "armpll3", };
39486-static const char *ldi1_mux_p[] __initconst = { "armpll2", "armpll4",
39487+static const char * const edc1_mux_p[] __initconst = { "armpll2", "armpll3", };
39488+static const char * const ldi1_mux_p[] __initconst = { "armpll2", "armpll4",
39489 "armpll3", "armpll5", };
39490-static const char *rclk_hsic_p[] __initconst = { "armpll3", "armpll2", };
39491-static const char *mmc2_mux_p[] __initconst = { "armpll2", "armpll3", };
39492-static const char *mmc3_mux_p[] __initconst = { "armpll2", "armpll3", };
39493+static const char * const rclk_hsic_p[] __initconst = { "armpll3", "armpll2", };
39494+static const char * const mmc2_mux_p[] __initconst = { "armpll2", "armpll3", };
39495+static const char * const mmc3_mux_p[] __initconst = { "armpll2", "armpll3", };
39496
39497
39498 /* fixed rate clocks */
39499diff --git a/drivers/clk/hisilicon/clk-hix5hd2.c b/drivers/clk/hisilicon/clk-hix5hd2.c
39500index 3f369c6..05f9ffd 100644
39501--- a/drivers/clk/hisilicon/clk-hix5hd2.c
39502+++ b/drivers/clk/hisilicon/clk-hix5hd2.c
39503@@ -46,15 +46,15 @@ static struct hisi_fixed_rate_clock hix5hd2_fixed_rate_clks[] __initdata = {
39504 { HIX5HD2_FIXED_83M, "83m", NULL, CLK_IS_ROOT, 83333333, },
39505 };
39506
39507-static const char *sfc_mux_p[] __initconst = {
39508+static const char * const sfc_mux_p[] __initconst = {
39509 "24m", "150m", "200m", "100m", "75m", };
39510 static u32 sfc_mux_table[] = {0, 4, 5, 6, 7};
39511
39512-static const char *sdio_mux_p[] __initconst = {
39513+static const char * const sdio_mux_p[] __initconst = {
39514 "75m", "100m", "50m", "15m", };
39515 static u32 sdio_mux_table[] = {0, 1, 2, 3};
39516
39517-static const char *fephy_mux_p[] __initconst = { "25m", "125m"};
39518+static const char * const fephy_mux_p[] __initconst = { "25m", "125m"};
39519 static u32 fephy_mux_table[] = {0, 1};
39520
39521
39522diff --git a/drivers/clk/rockchip/clk-rk3188.c b/drivers/clk/rockchip/clk-rk3188.c
39523index 7eb684c..147c6fc 100644
39524--- a/drivers/clk/rockchip/clk-rk3188.c
39525+++ b/drivers/clk/rockchip/clk-rk3188.c
39526@@ -704,7 +704,7 @@ static struct rockchip_clk_branch rk3188_clk_branches[] __initdata = {
39527 GATE(ACLK_GPS, "aclk_gps", "aclk_peri", 0, RK2928_CLKGATE_CON(8), 13, GFLAGS),
39528 };
39529
39530-static const char *rk3188_critical_clocks[] __initconst = {
39531+static const char * const rk3188_critical_clocks[] __initconst = {
39532 "aclk_cpu",
39533 "aclk_peri",
39534 "hclk_peri",
39535diff --git a/drivers/clk/rockchip/clk-rk3288.c b/drivers/clk/rockchip/clk-rk3288.c
39536index 05d7a0b..4fc131c 100644
39537--- a/drivers/clk/rockchip/clk-rk3288.c
39538+++ b/drivers/clk/rockchip/clk-rk3288.c
39539@@ -771,7 +771,7 @@ static struct rockchip_clk_branch rk3288_clk_branches[] __initdata = {
39540 GATE(0, "pclk_isp_in", "ext_isp", 0, RK3288_CLKGATE_CON(16), 3, GFLAGS),
39541 };
39542
39543-static const char *rk3288_critical_clocks[] __initconst = {
39544+static const char * const rk3288_critical_clocks[] __initconst = {
39545 "aclk_cpu",
39546 "aclk_peri",
39547 "hclk_peri",
39548diff --git a/drivers/clk/rockchip/clk.h b/drivers/clk/rockchip/clk.h
39549index 58d2e3b..0c21b0d 100644
39550--- a/drivers/clk/rockchip/clk.h
39551+++ b/drivers/clk/rockchip/clk.h
39552@@ -182,7 +182,7 @@ struct clk *rockchip_clk_register_mmc(const char *name,
39553 const char **parent_names, u8 num_parents,
39554 void __iomem *reg, int shift);
39555
39556-#define PNAME(x) static const char *x[] __initconst
39557+#define PNAME(x) static const char * const x[] __initconst
39558
39559 enum rockchip_clk_branch_type {
39560 branch_composite,
39561diff --git a/drivers/clk/samsung/clk.h b/drivers/clk/samsung/clk.h
39562index e4c7538..99c50cd 100644
39563--- a/drivers/clk/samsung/clk.h
39564+++ b/drivers/clk/samsung/clk.h
39565@@ -260,7 +260,7 @@ struct samsung_gate_clock {
39566 #define GATE_DA(_id, dname, cname, pname, o, b, f, gf, a) \
39567 __GATE(_id, dname, cname, pname, o, b, f, gf, a)
39568
39569-#define PNAME(x) static const char *x[] __initdata
39570+#define PNAME(x) static const char * const x[] __initconst
39571
39572 /**
39573 * struct samsung_clk_reg_dump: register dump of clock controller registers.
39574diff --git a/drivers/clk/socfpga/clk-gate.c b/drivers/clk/socfpga/clk-gate.c
39575index dd3a78c..386d49c 100644
39576--- a/drivers/clk/socfpga/clk-gate.c
39577+++ b/drivers/clk/socfpga/clk-gate.c
39578@@ -22,6 +22,7 @@
39579 #include <linux/mfd/syscon.h>
39580 #include <linux/of.h>
39581 #include <linux/regmap.h>
39582+#include <asm/pgtable.h>
39583
39584 #include "clk.h"
39585
39586@@ -174,7 +175,7 @@ static int socfpga_clk_prepare(struct clk_hw *hwclk)
39587 return 0;
39588 }
39589
39590-static struct clk_ops gateclk_ops = {
39591+static clk_ops_no_const gateclk_ops __read_only = {
39592 .prepare = socfpga_clk_prepare,
39593 .recalc_rate = socfpga_clk_recalc_rate,
39594 .get_parent = socfpga_clk_get_parent,
39595@@ -208,8 +209,10 @@ static void __init __socfpga_gate_init(struct device_node *node,
39596 socfpga_clk->hw.reg = clk_mgr_base_addr + clk_gate[0];
39597 socfpga_clk->hw.bit_idx = clk_gate[1];
39598
39599- gateclk_ops.enable = clk_gate_ops.enable;
39600- gateclk_ops.disable = clk_gate_ops.disable;
39601+ pax_open_kernel();
39602+ *(void **)&gateclk_ops.enable = clk_gate_ops.enable;
39603+ *(void **)&gateclk_ops.disable = clk_gate_ops.disable;
39604+ pax_close_kernel();
39605 }
39606
39607 rc = of_property_read_u32(node, "fixed-divider", &fixed_div);
39608diff --git a/drivers/clk/socfpga/clk-pll.c b/drivers/clk/socfpga/clk-pll.c
39609index de6da95..c98278b 100644
39610--- a/drivers/clk/socfpga/clk-pll.c
39611+++ b/drivers/clk/socfpga/clk-pll.c
39612@@ -21,6 +21,7 @@
39613 #include <linux/io.h>
39614 #include <linux/of.h>
39615 #include <linux/of_address.h>
39616+#include <asm/pgtable.h>
39617
39618 #include "clk.h"
39619
39620@@ -76,7 +77,7 @@ static u8 clk_pll_get_parent(struct clk_hw *hwclk)
39621 CLK_MGR_PLL_CLK_SRC_MASK;
39622 }
39623
39624-static struct clk_ops clk_pll_ops = {
39625+static clk_ops_no_const clk_pll_ops __read_only = {
39626 .recalc_rate = clk_pll_recalc_rate,
39627 .get_parent = clk_pll_get_parent,
39628 };
39629@@ -120,8 +121,10 @@ static __init struct clk *__socfpga_pll_init(struct device_node *node,
39630 pll_clk->hw.hw.init = &init;
39631
39632 pll_clk->hw.bit_idx = SOCFPGA_PLL_EXT_ENA;
39633- clk_pll_ops.enable = clk_gate_ops.enable;
39634- clk_pll_ops.disable = clk_gate_ops.disable;
39635+ pax_open_kernel();
39636+ *(void **)&clk_pll_ops.enable = clk_gate_ops.enable;
39637+ *(void **)&clk_pll_ops.disable = clk_gate_ops.disable;
39638+ pax_close_kernel();
39639
39640 clk = clk_register(NULL, &pll_clk->hw.hw);
39641 if (WARN_ON(IS_ERR(clk))) {
39642diff --git a/drivers/clk/ti/composite.c b/drivers/clk/ti/composite.c
39643index 3654f61..81abe81 100644
39644--- a/drivers/clk/ti/composite.c
39645+++ b/drivers/clk/ti/composite.c
39646@@ -69,7 +69,7 @@ struct component_clk {
39647 struct list_head link;
39648 };
39649
39650-static const char * __initconst component_clk_types[] = {
39651+static const char * const __initconst component_clk_types[] = {
39652 "gate", "divider", "mux"
39653 };
39654
39655diff --git a/drivers/clk/zynq/clkc.c b/drivers/clk/zynq/clkc.c
39656index f870aad..04ba1e4 100644
39657--- a/drivers/clk/zynq/clkc.c
39658+++ b/drivers/clk/zynq/clkc.c
39659@@ -85,22 +85,22 @@ static DEFINE_SPINLOCK(canmioclk_lock);
39660 static DEFINE_SPINLOCK(dbgclk_lock);
39661 static DEFINE_SPINLOCK(aperclk_lock);
39662
39663-static const char *armpll_parents[] __initconst = {"armpll_int", "ps_clk"};
39664-static const char *ddrpll_parents[] __initconst = {"ddrpll_int", "ps_clk"};
39665-static const char *iopll_parents[] __initconst = {"iopll_int", "ps_clk"};
39666-static const char *gem0_mux_parents[] __initconst = {"gem0_div1", "dummy_name"};
39667-static const char *gem1_mux_parents[] __initconst = {"gem1_div1", "dummy_name"};
39668-static const char *can0_mio_mux2_parents[] __initconst = {"can0_gate",
39669+static const char * const armpll_parents[] __initconst = {"armpll_int", "ps_clk"};
39670+static const char * const ddrpll_parents[] __initconst = {"ddrpll_int", "ps_clk"};
39671+static const char * const iopll_parents[] __initconst = {"iopll_int", "ps_clk"};
39672+static const char * gem0_mux_parents[] __initdata = {"gem0_div1", "dummy_name"};
39673+static const char * gem1_mux_parents[] __initdata = {"gem1_div1", "dummy_name"};
39674+static const char * const can0_mio_mux2_parents[] __initconst = {"can0_gate",
39675 "can0_mio_mux"};
39676-static const char *can1_mio_mux2_parents[] __initconst = {"can1_gate",
39677+static const char * const can1_mio_mux2_parents[] __initconst = {"can1_gate",
39678 "can1_mio_mux"};
39679-static const char *dbg_emio_mux_parents[] __initconst = {"dbg_div",
39680+static const char * dbg_emio_mux_parents[] __initdata = {"dbg_div",
39681 "dummy_name"};
39682
39683-static const char *dbgtrc_emio_input_names[] __initconst = {"trace_emio_clk"};
39684-static const char *gem0_emio_input_names[] __initconst = {"gem0_emio_clk"};
39685-static const char *gem1_emio_input_names[] __initconst = {"gem1_emio_clk"};
39686-static const char *swdt_ext_clk_input_names[] __initconst = {"swdt_ext_clk"};
39687+static const char * const dbgtrc_emio_input_names[] __initconst = {"trace_emio_clk"};
39688+static const char * const gem0_emio_input_names[] __initconst = {"gem0_emio_clk"};
39689+static const char * const gem1_emio_input_names[] __initconst = {"gem1_emio_clk"};
39690+static const char * const swdt_ext_clk_input_names[] __initconst = {"swdt_ext_clk"};
39691
39692 static void __init zynq_clk_register_fclk(enum zynq_clk fclk,
39693 const char *clk_name, void __iomem *fclk_ctrl_reg,
39694diff --git a/drivers/cpufreq/acpi-cpufreq.c b/drivers/cpufreq/acpi-cpufreq.c
39695index b0c18ed..1713a80 100644
39696--- a/drivers/cpufreq/acpi-cpufreq.c
39697+++ b/drivers/cpufreq/acpi-cpufreq.c
39698@@ -675,8 +675,11 @@ static int acpi_cpufreq_cpu_init(struct cpufreq_policy *policy)
39699 data->acpi_data = per_cpu_ptr(acpi_perf_data, cpu);
39700 per_cpu(acfreq_data, cpu) = data;
39701
39702- if (cpu_has(c, X86_FEATURE_CONSTANT_TSC))
39703- acpi_cpufreq_driver.flags |= CPUFREQ_CONST_LOOPS;
39704+ if (cpu_has(c, X86_FEATURE_CONSTANT_TSC)) {
39705+ pax_open_kernel();
39706+ *(u8 *)&acpi_cpufreq_driver.flags |= CPUFREQ_CONST_LOOPS;
39707+ pax_close_kernel();
39708+ }
39709
39710 result = acpi_processor_register_performance(data->acpi_data, cpu);
39711 if (result)
39712@@ -809,7 +812,9 @@ static int acpi_cpufreq_cpu_init(struct cpufreq_policy *policy)
39713 policy->cur = acpi_cpufreq_guess_freq(data, policy->cpu);
39714 break;
39715 case ACPI_ADR_SPACE_FIXED_HARDWARE:
39716- acpi_cpufreq_driver.get = get_cur_freq_on_cpu;
39717+ pax_open_kernel();
39718+ *(void **)&acpi_cpufreq_driver.get = get_cur_freq_on_cpu;
39719+ pax_close_kernel();
39720 break;
39721 default:
39722 break;
39723@@ -903,8 +908,10 @@ static void __init acpi_cpufreq_boost_init(void)
39724 if (!msrs)
39725 return;
39726
39727- acpi_cpufreq_driver.boost_supported = true;
39728- acpi_cpufreq_driver.boost_enabled = boost_state(0);
39729+ pax_open_kernel();
39730+ *(bool *)&acpi_cpufreq_driver.boost_supported = true;
39731+ *(bool *)&acpi_cpufreq_driver.boost_enabled = boost_state(0);
39732+ pax_close_kernel();
39733
39734 cpu_notifier_register_begin();
39735
39736diff --git a/drivers/cpufreq/cpufreq-dt.c b/drivers/cpufreq/cpufreq-dt.c
39737index bab67db..91af7e3 100644
39738--- a/drivers/cpufreq/cpufreq-dt.c
39739+++ b/drivers/cpufreq/cpufreq-dt.c
39740@@ -392,7 +392,9 @@ static int dt_cpufreq_probe(struct platform_device *pdev)
39741 if (!IS_ERR(cpu_reg))
39742 regulator_put(cpu_reg);
39743
39744- dt_cpufreq_driver.driver_data = dev_get_platdata(&pdev->dev);
39745+ pax_open_kernel();
39746+ *(void **)&dt_cpufreq_driver.driver_data = dev_get_platdata(&pdev->dev);
39747+ pax_close_kernel();
39748
39749 ret = cpufreq_register_driver(&dt_cpufreq_driver);
39750 if (ret)
39751diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
39752index 8ae655c..3141442 100644
39753--- a/drivers/cpufreq/cpufreq.c
39754+++ b/drivers/cpufreq/cpufreq.c
39755@@ -2108,7 +2108,7 @@ void cpufreq_unregister_governor(struct cpufreq_governor *governor)
39756 }
39757
39758 mutex_lock(&cpufreq_governor_mutex);
39759- list_del(&governor->governor_list);
39760+ pax_list_del(&governor->governor_list);
39761 mutex_unlock(&cpufreq_governor_mutex);
39762 return;
39763 }
39764@@ -2323,7 +2323,7 @@ static int cpufreq_cpu_callback(struct notifier_block *nfb,
39765 return NOTIFY_OK;
39766 }
39767
39768-static struct notifier_block __refdata cpufreq_cpu_notifier = {
39769+static struct notifier_block cpufreq_cpu_notifier = {
39770 .notifier_call = cpufreq_cpu_callback,
39771 };
39772
39773@@ -2363,13 +2363,17 @@ int cpufreq_boost_trigger_state(int state)
39774 return 0;
39775
39776 write_lock_irqsave(&cpufreq_driver_lock, flags);
39777- cpufreq_driver->boost_enabled = state;
39778+ pax_open_kernel();
39779+ *(bool *)&cpufreq_driver->boost_enabled = state;
39780+ pax_close_kernel();
39781 write_unlock_irqrestore(&cpufreq_driver_lock, flags);
39782
39783 ret = cpufreq_driver->set_boost(state);
39784 if (ret) {
39785 write_lock_irqsave(&cpufreq_driver_lock, flags);
39786- cpufreq_driver->boost_enabled = !state;
39787+ pax_open_kernel();
39788+ *(bool *)&cpufreq_driver->boost_enabled = !state;
39789+ pax_close_kernel();
39790 write_unlock_irqrestore(&cpufreq_driver_lock, flags);
39791
39792 pr_err("%s: Cannot %s BOOST\n",
39793@@ -2434,16 +2438,22 @@ int cpufreq_register_driver(struct cpufreq_driver *driver_data)
39794 cpufreq_driver = driver_data;
39795 write_unlock_irqrestore(&cpufreq_driver_lock, flags);
39796
39797- if (driver_data->setpolicy)
39798- driver_data->flags |= CPUFREQ_CONST_LOOPS;
39799+ if (driver_data->setpolicy) {
39800+ pax_open_kernel();
39801+ *(u8 *)&driver_data->flags |= CPUFREQ_CONST_LOOPS;
39802+ pax_close_kernel();
39803+ }
39804
39805 if (cpufreq_boost_supported()) {
39806 /*
39807 * Check if driver provides function to enable boost -
39808 * if not, use cpufreq_boost_set_sw as default
39809 */
39810- if (!cpufreq_driver->set_boost)
39811- cpufreq_driver->set_boost = cpufreq_boost_set_sw;
39812+ if (!cpufreq_driver->set_boost) {
39813+ pax_open_kernel();
39814+ *(void **)&cpufreq_driver->set_boost = cpufreq_boost_set_sw;
39815+ pax_close_kernel();
39816+ }
39817
39818 ret = cpufreq_sysfs_create_file(&boost.attr);
39819 if (ret) {
39820diff --git a/drivers/cpufreq/cpufreq_governor.c b/drivers/cpufreq/cpufreq_governor.c
39821index 1b44496..b80ff5e 100644
39822--- a/drivers/cpufreq/cpufreq_governor.c
39823+++ b/drivers/cpufreq/cpufreq_governor.c
39824@@ -245,7 +245,7 @@ int cpufreq_governor_dbs(struct cpufreq_policy *policy,
39825 struct dbs_data *dbs_data;
39826 struct od_cpu_dbs_info_s *od_dbs_info = NULL;
39827 struct cs_cpu_dbs_info_s *cs_dbs_info = NULL;
39828- struct od_ops *od_ops = NULL;
39829+ const struct od_ops *od_ops = NULL;
39830 struct od_dbs_tuners *od_tuners = NULL;
39831 struct cs_dbs_tuners *cs_tuners = NULL;
39832 struct cpu_dbs_common_info *cpu_cdbs;
39833@@ -311,7 +311,7 @@ int cpufreq_governor_dbs(struct cpufreq_policy *policy,
39834
39835 if ((cdata->governor == GOV_CONSERVATIVE) &&
39836 (!policy->governor->initialized)) {
39837- struct cs_ops *cs_ops = dbs_data->cdata->gov_ops;
39838+ const struct cs_ops *cs_ops = dbs_data->cdata->gov_ops;
39839
39840 cpufreq_register_notifier(cs_ops->notifier_block,
39841 CPUFREQ_TRANSITION_NOTIFIER);
39842@@ -331,7 +331,7 @@ int cpufreq_governor_dbs(struct cpufreq_policy *policy,
39843
39844 if ((dbs_data->cdata->governor == GOV_CONSERVATIVE) &&
39845 (policy->governor->initialized == 1)) {
39846- struct cs_ops *cs_ops = dbs_data->cdata->gov_ops;
39847+ const struct cs_ops *cs_ops = dbs_data->cdata->gov_ops;
39848
39849 cpufreq_unregister_notifier(cs_ops->notifier_block,
39850 CPUFREQ_TRANSITION_NOTIFIER);
39851diff --git a/drivers/cpufreq/cpufreq_governor.h b/drivers/cpufreq/cpufreq_governor.h
39852index cc401d1..8197340 100644
39853--- a/drivers/cpufreq/cpufreq_governor.h
39854+++ b/drivers/cpufreq/cpufreq_governor.h
39855@@ -212,7 +212,7 @@ struct common_dbs_data {
39856 void (*exit)(struct dbs_data *dbs_data);
39857
39858 /* Governor specific ops, see below */
39859- void *gov_ops;
39860+ const void *gov_ops;
39861 };
39862
39863 /* Governor Per policy data */
39864@@ -232,7 +232,7 @@ struct od_ops {
39865 unsigned int (*powersave_bias_target)(struct cpufreq_policy *policy,
39866 unsigned int freq_next, unsigned int relation);
39867 void (*freq_increase)(struct cpufreq_policy *policy, unsigned int freq);
39868-};
39869+} __no_const;
39870
39871 struct cs_ops {
39872 struct notifier_block *notifier_block;
39873diff --git a/drivers/cpufreq/cpufreq_ondemand.c b/drivers/cpufreq/cpufreq_ondemand.c
39874index ad3f38f..8f086cd 100644
39875--- a/drivers/cpufreq/cpufreq_ondemand.c
39876+++ b/drivers/cpufreq/cpufreq_ondemand.c
39877@@ -524,7 +524,7 @@ static void od_exit(struct dbs_data *dbs_data)
39878
39879 define_get_cpu_dbs_routines(od_cpu_dbs_info);
39880
39881-static struct od_ops od_ops = {
39882+static struct od_ops od_ops __read_only = {
39883 .powersave_bias_init_cpu = ondemand_powersave_bias_init_cpu,
39884 .powersave_bias_target = generic_powersave_bias_target,
39885 .freq_increase = dbs_freq_increase,
39886@@ -579,14 +579,18 @@ void od_register_powersave_bias_handler(unsigned int (*f)
39887 (struct cpufreq_policy *, unsigned int, unsigned int),
39888 unsigned int powersave_bias)
39889 {
39890- od_ops.powersave_bias_target = f;
39891+ pax_open_kernel();
39892+ *(void **)&od_ops.powersave_bias_target = f;
39893+ pax_close_kernel();
39894 od_set_powersave_bias(powersave_bias);
39895 }
39896 EXPORT_SYMBOL_GPL(od_register_powersave_bias_handler);
39897
39898 void od_unregister_powersave_bias_handler(void)
39899 {
39900- od_ops.powersave_bias_target = generic_powersave_bias_target;
39901+ pax_open_kernel();
39902+ *(void **)&od_ops.powersave_bias_target = generic_powersave_bias_target;
39903+ pax_close_kernel();
39904 od_set_powersave_bias(0);
39905 }
39906 EXPORT_SYMBOL_GPL(od_unregister_powersave_bias_handler);
39907diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
39908index 872c577..5fb3c20 100644
39909--- a/drivers/cpufreq/intel_pstate.c
39910+++ b/drivers/cpufreq/intel_pstate.c
39911@@ -133,10 +133,10 @@ struct pstate_funcs {
39912 struct cpu_defaults {
39913 struct pstate_adjust_policy pid_policy;
39914 struct pstate_funcs funcs;
39915-};
39916+} __do_const;
39917
39918 static struct pstate_adjust_policy pid_params;
39919-static struct pstate_funcs pstate_funcs;
39920+static struct pstate_funcs *pstate_funcs;
39921 static int hwp_active;
39922
39923 struct perf_limits {
39924@@ -690,18 +690,18 @@ static void intel_pstate_set_pstate(struct cpudata *cpu, int pstate)
39925
39926 cpu->pstate.current_pstate = pstate;
39927
39928- pstate_funcs.set(cpu, pstate);
39929+ pstate_funcs->set(cpu, pstate);
39930 }
39931
39932 static void intel_pstate_get_cpu_pstates(struct cpudata *cpu)
39933 {
39934- cpu->pstate.min_pstate = pstate_funcs.get_min();
39935- cpu->pstate.max_pstate = pstate_funcs.get_max();
39936- cpu->pstate.turbo_pstate = pstate_funcs.get_turbo();
39937- cpu->pstate.scaling = pstate_funcs.get_scaling();
39938+ cpu->pstate.min_pstate = pstate_funcs->get_min();
39939+ cpu->pstate.max_pstate = pstate_funcs->get_max();
39940+ cpu->pstate.turbo_pstate = pstate_funcs->get_turbo();
39941+ cpu->pstate.scaling = pstate_funcs->get_scaling();
39942
39943- if (pstate_funcs.get_vid)
39944- pstate_funcs.get_vid(cpu);
39945+ if (pstate_funcs->get_vid)
39946+ pstate_funcs->get_vid(cpu);
39947 intel_pstate_set_pstate(cpu, cpu->pstate.min_pstate);
39948 }
39949
39950@@ -1030,9 +1030,9 @@ static int intel_pstate_msrs_not_valid(void)
39951 rdmsrl(MSR_IA32_APERF, aperf);
39952 rdmsrl(MSR_IA32_MPERF, mperf);
39953
39954- if (!pstate_funcs.get_max() ||
39955- !pstate_funcs.get_min() ||
39956- !pstate_funcs.get_turbo())
39957+ if (!pstate_funcs->get_max() ||
39958+ !pstate_funcs->get_min() ||
39959+ !pstate_funcs->get_turbo())
39960 return -ENODEV;
39961
39962 rdmsrl(MSR_IA32_APERF, tmp);
39963@@ -1046,7 +1046,7 @@ static int intel_pstate_msrs_not_valid(void)
39964 return 0;
39965 }
39966
39967-static void copy_pid_params(struct pstate_adjust_policy *policy)
39968+static void copy_pid_params(const struct pstate_adjust_policy *policy)
39969 {
39970 pid_params.sample_rate_ms = policy->sample_rate_ms;
39971 pid_params.p_gain_pct = policy->p_gain_pct;
39972@@ -1058,12 +1058,7 @@ static void copy_pid_params(struct pstate_adjust_policy *policy)
39973
39974 static void copy_cpu_funcs(struct pstate_funcs *funcs)
39975 {
39976- pstate_funcs.get_max = funcs->get_max;
39977- pstate_funcs.get_min = funcs->get_min;
39978- pstate_funcs.get_turbo = funcs->get_turbo;
39979- pstate_funcs.get_scaling = funcs->get_scaling;
39980- pstate_funcs.set = funcs->set;
39981- pstate_funcs.get_vid = funcs->get_vid;
39982+ pstate_funcs = funcs;
39983 }
39984
39985 #if IS_ENABLED(CONFIG_ACPI)
39986diff --git a/drivers/cpufreq/p4-clockmod.c b/drivers/cpufreq/p4-clockmod.c
39987index 529cfd9..0e28fff 100644
39988--- a/drivers/cpufreq/p4-clockmod.c
39989+++ b/drivers/cpufreq/p4-clockmod.c
39990@@ -134,10 +134,14 @@ static unsigned int cpufreq_p4_get_frequency(struct cpuinfo_x86 *c)
39991 case 0x0F: /* Core Duo */
39992 case 0x16: /* Celeron Core */
39993 case 0x1C: /* Atom */
39994- p4clockmod_driver.flags |= CPUFREQ_CONST_LOOPS;
39995+ pax_open_kernel();
39996+ *(u8 *)&p4clockmod_driver.flags |= CPUFREQ_CONST_LOOPS;
39997+ pax_close_kernel();
39998 return speedstep_get_frequency(SPEEDSTEP_CPU_PCORE);
39999 case 0x0D: /* Pentium M (Dothan) */
40000- p4clockmod_driver.flags |= CPUFREQ_CONST_LOOPS;
40001+ pax_open_kernel();
40002+ *(u8 *)&p4clockmod_driver.flags |= CPUFREQ_CONST_LOOPS;
40003+ pax_close_kernel();
40004 /* fall through */
40005 case 0x09: /* Pentium M (Banias) */
40006 return speedstep_get_frequency(SPEEDSTEP_CPU_PM);
40007@@ -149,7 +153,9 @@ static unsigned int cpufreq_p4_get_frequency(struct cpuinfo_x86 *c)
40008
40009 /* on P-4s, the TSC runs with constant frequency independent whether
40010 * throttling is active or not. */
40011- p4clockmod_driver.flags |= CPUFREQ_CONST_LOOPS;
40012+ pax_open_kernel();
40013+ *(u8 *)&p4clockmod_driver.flags |= CPUFREQ_CONST_LOOPS;
40014+ pax_close_kernel();
40015
40016 if (speedstep_detect_processor() == SPEEDSTEP_CPU_P4M) {
40017 printk(KERN_WARNING PFX "Warning: Pentium 4-M detected. "
40018diff --git a/drivers/cpufreq/sparc-us3-cpufreq.c b/drivers/cpufreq/sparc-us3-cpufreq.c
40019index 9bb42ba..b01b4a2 100644
40020--- a/drivers/cpufreq/sparc-us3-cpufreq.c
40021+++ b/drivers/cpufreq/sparc-us3-cpufreq.c
40022@@ -18,14 +18,12 @@
40023 #include <asm/head.h>
40024 #include <asm/timer.h>
40025
40026-static struct cpufreq_driver *cpufreq_us3_driver;
40027-
40028 struct us3_freq_percpu_info {
40029 struct cpufreq_frequency_table table[4];
40030 };
40031
40032 /* Indexed by cpu number. */
40033-static struct us3_freq_percpu_info *us3_freq_table;
40034+static struct us3_freq_percpu_info us3_freq_table[NR_CPUS];
40035
40036 /* UltraSPARC-III has three dividers: 1, 2, and 32. These are controlled
40037 * in the Safari config register.
40038@@ -156,16 +154,27 @@ static int __init us3_freq_cpu_init(struct cpufreq_policy *policy)
40039
40040 static int us3_freq_cpu_exit(struct cpufreq_policy *policy)
40041 {
40042- if (cpufreq_us3_driver)
40043- us3_freq_target(policy, 0);
40044+ us3_freq_target(policy, 0);
40045
40046 return 0;
40047 }
40048
40049+static int __init us3_freq_init(void);
40050+static void __exit us3_freq_exit(void);
40051+
40052+static struct cpufreq_driver cpufreq_us3_driver = {
40053+ .init = us3_freq_cpu_init,
40054+ .verify = cpufreq_generic_frequency_table_verify,
40055+ .target_index = us3_freq_target,
40056+ .get = us3_freq_get,
40057+ .exit = us3_freq_cpu_exit,
40058+ .name = "UltraSPARC-III",
40059+
40060+};
40061+
40062 static int __init us3_freq_init(void)
40063 {
40064 unsigned long manuf, impl, ver;
40065- int ret;
40066
40067 if (tlb_type != cheetah && tlb_type != cheetah_plus)
40068 return -ENODEV;
40069@@ -178,55 +187,15 @@ static int __init us3_freq_init(void)
40070 (impl == CHEETAH_IMPL ||
40071 impl == CHEETAH_PLUS_IMPL ||
40072 impl == JAGUAR_IMPL ||
40073- impl == PANTHER_IMPL)) {
40074- struct cpufreq_driver *driver;
40075-
40076- ret = -ENOMEM;
40077- driver = kzalloc(sizeof(*driver), GFP_KERNEL);
40078- if (!driver)
40079- goto err_out;
40080-
40081- us3_freq_table = kzalloc((NR_CPUS * sizeof(*us3_freq_table)),
40082- GFP_KERNEL);
40083- if (!us3_freq_table)
40084- goto err_out;
40085-
40086- driver->init = us3_freq_cpu_init;
40087- driver->verify = cpufreq_generic_frequency_table_verify;
40088- driver->target_index = us3_freq_target;
40089- driver->get = us3_freq_get;
40090- driver->exit = us3_freq_cpu_exit;
40091- strcpy(driver->name, "UltraSPARC-III");
40092-
40093- cpufreq_us3_driver = driver;
40094- ret = cpufreq_register_driver(driver);
40095- if (ret)
40096- goto err_out;
40097-
40098- return 0;
40099-
40100-err_out:
40101- if (driver) {
40102- kfree(driver);
40103- cpufreq_us3_driver = NULL;
40104- }
40105- kfree(us3_freq_table);
40106- us3_freq_table = NULL;
40107- return ret;
40108- }
40109+ impl == PANTHER_IMPL))
40110+ return cpufreq_register_driver(&cpufreq_us3_driver);
40111
40112 return -ENODEV;
40113 }
40114
40115 static void __exit us3_freq_exit(void)
40116 {
40117- if (cpufreq_us3_driver) {
40118- cpufreq_unregister_driver(cpufreq_us3_driver);
40119- kfree(cpufreq_us3_driver);
40120- cpufreq_us3_driver = NULL;
40121- kfree(us3_freq_table);
40122- us3_freq_table = NULL;
40123- }
40124+ cpufreq_unregister_driver(&cpufreq_us3_driver);
40125 }
40126
40127 MODULE_AUTHOR("David S. Miller <davem@redhat.com>");
40128diff --git a/drivers/cpufreq/speedstep-centrino.c b/drivers/cpufreq/speedstep-centrino.c
40129index 7d4a315..21bb886 100644
40130--- a/drivers/cpufreq/speedstep-centrino.c
40131+++ b/drivers/cpufreq/speedstep-centrino.c
40132@@ -351,8 +351,11 @@ static int centrino_cpu_init(struct cpufreq_policy *policy)
40133 !cpu_has(cpu, X86_FEATURE_EST))
40134 return -ENODEV;
40135
40136- if (cpu_has(cpu, X86_FEATURE_CONSTANT_TSC))
40137- centrino_driver.flags |= CPUFREQ_CONST_LOOPS;
40138+ if (cpu_has(cpu, X86_FEATURE_CONSTANT_TSC)) {
40139+ pax_open_kernel();
40140+ *(u8 *)&centrino_driver.flags |= CPUFREQ_CONST_LOOPS;
40141+ pax_close_kernel();
40142+ }
40143
40144 if (policy->cpu != 0)
40145 return -ENODEV;
40146diff --git a/drivers/cpuidle/driver.c b/drivers/cpuidle/driver.c
40147index 2697e87..c32476c 100644
40148--- a/drivers/cpuidle/driver.c
40149+++ b/drivers/cpuidle/driver.c
40150@@ -194,7 +194,7 @@ static int poll_idle(struct cpuidle_device *dev,
40151
40152 static void poll_idle_init(struct cpuidle_driver *drv)
40153 {
40154- struct cpuidle_state *state = &drv->states[0];
40155+ cpuidle_state_no_const *state = &drv->states[0];
40156
40157 snprintf(state->name, CPUIDLE_NAME_LEN, "POLL");
40158 snprintf(state->desc, CPUIDLE_DESC_LEN, "CPUIDLE CORE POLL IDLE");
40159diff --git a/drivers/cpuidle/governor.c b/drivers/cpuidle/governor.c
40160index fb9f511..213e6cc 100644
40161--- a/drivers/cpuidle/governor.c
40162+++ b/drivers/cpuidle/governor.c
40163@@ -87,7 +87,7 @@ int cpuidle_register_governor(struct cpuidle_governor *gov)
40164 mutex_lock(&cpuidle_lock);
40165 if (__cpuidle_find_governor(gov->name) == NULL) {
40166 ret = 0;
40167- list_add_tail(&gov->governor_list, &cpuidle_governors);
40168+ pax_list_add_tail((struct list_head *)&gov->governor_list, &cpuidle_governors);
40169 if (!cpuidle_curr_governor ||
40170 cpuidle_curr_governor->rating < gov->rating)
40171 cpuidle_switch_governor(gov);
40172diff --git a/drivers/cpuidle/sysfs.c b/drivers/cpuidle/sysfs.c
40173index 832a2c3..1794080 100644
40174--- a/drivers/cpuidle/sysfs.c
40175+++ b/drivers/cpuidle/sysfs.c
40176@@ -135,7 +135,7 @@ static struct attribute *cpuidle_switch_attrs[] = {
40177 NULL
40178 };
40179
40180-static struct attribute_group cpuidle_attr_group = {
40181+static attribute_group_no_const cpuidle_attr_group = {
40182 .attrs = cpuidle_default_attrs,
40183 .name = "cpuidle",
40184 };
40185diff --git a/drivers/crypto/hifn_795x.c b/drivers/crypto/hifn_795x.c
40186index 8d2a772..33826c9 100644
40187--- a/drivers/crypto/hifn_795x.c
40188+++ b/drivers/crypto/hifn_795x.c
40189@@ -51,7 +51,7 @@ module_param_string(hifn_pll_ref, hifn_pll_ref, sizeof(hifn_pll_ref), 0444);
40190 MODULE_PARM_DESC(hifn_pll_ref,
40191 "PLL reference clock (pci[freq] or ext[freq], default ext)");
40192
40193-static atomic_t hifn_dev_number;
40194+static atomic_unchecked_t hifn_dev_number;
40195
40196 #define ACRYPTO_OP_DECRYPT 0
40197 #define ACRYPTO_OP_ENCRYPT 1
40198@@ -2577,7 +2577,7 @@ static int hifn_probe(struct pci_dev *pdev, const struct pci_device_id *id)
40199 goto err_out_disable_pci_device;
40200
40201 snprintf(name, sizeof(name), "hifn%d",
40202- atomic_inc_return(&hifn_dev_number)-1);
40203+ atomic_inc_return_unchecked(&hifn_dev_number)-1);
40204
40205 err = pci_request_regions(pdev, name);
40206 if (err)
40207diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c
40208index 30b538d8..1610d75 100644
40209--- a/drivers/devfreq/devfreq.c
40210+++ b/drivers/devfreq/devfreq.c
40211@@ -673,7 +673,7 @@ int devfreq_add_governor(struct devfreq_governor *governor)
40212 goto err_out;
40213 }
40214
40215- list_add(&governor->node, &devfreq_governor_list);
40216+ pax_list_add((struct list_head *)&governor->node, &devfreq_governor_list);
40217
40218 list_for_each_entry(devfreq, &devfreq_list, node) {
40219 int ret = 0;
40220@@ -761,7 +761,7 @@ int devfreq_remove_governor(struct devfreq_governor *governor)
40221 }
40222 }
40223
40224- list_del(&governor->node);
40225+ pax_list_del((struct list_head *)&governor->node);
40226 err_out:
40227 mutex_unlock(&devfreq_list_lock);
40228
40229diff --git a/drivers/dma/sh/shdma-base.c b/drivers/dma/sh/shdma-base.c
40230index 8ee383d..736b5de 100644
40231--- a/drivers/dma/sh/shdma-base.c
40232+++ b/drivers/dma/sh/shdma-base.c
40233@@ -228,8 +228,8 @@ static int shdma_alloc_chan_resources(struct dma_chan *chan)
40234 schan->slave_id = -EINVAL;
40235 }
40236
40237- schan->desc = kcalloc(NR_DESCS_PER_CHANNEL,
40238- sdev->desc_size, GFP_KERNEL);
40239+ schan->desc = kcalloc(sdev->desc_size,
40240+ NR_DESCS_PER_CHANNEL, GFP_KERNEL);
40241 if (!schan->desc) {
40242 ret = -ENOMEM;
40243 goto edescalloc;
40244diff --git a/drivers/dma/sh/shdmac.c b/drivers/dma/sh/shdmac.c
40245index 9f1d4c7..fceff78 100644
40246--- a/drivers/dma/sh/shdmac.c
40247+++ b/drivers/dma/sh/shdmac.c
40248@@ -513,7 +513,7 @@ static int sh_dmae_nmi_handler(struct notifier_block *self,
40249 return ret;
40250 }
40251
40252-static struct notifier_block sh_dmae_nmi_notifier __read_mostly = {
40253+static struct notifier_block sh_dmae_nmi_notifier = {
40254 .notifier_call = sh_dmae_nmi_handler,
40255
40256 /* Run before NMI debug handler and KGDB */
40257diff --git a/drivers/edac/edac_device.c b/drivers/edac/edac_device.c
40258index 592af5f..bb1d583 100644
40259--- a/drivers/edac/edac_device.c
40260+++ b/drivers/edac/edac_device.c
40261@@ -477,9 +477,9 @@ void edac_device_reset_delay_period(struct edac_device_ctl_info *edac_dev,
40262 */
40263 int edac_device_alloc_index(void)
40264 {
40265- static atomic_t device_indexes = ATOMIC_INIT(0);
40266+ static atomic_unchecked_t device_indexes = ATOMIC_INIT(0);
40267
40268- return atomic_inc_return(&device_indexes) - 1;
40269+ return atomic_inc_return_unchecked(&device_indexes) - 1;
40270 }
40271 EXPORT_SYMBOL_GPL(edac_device_alloc_index);
40272
40273diff --git a/drivers/edac/edac_mc_sysfs.c b/drivers/edac/edac_mc_sysfs.c
40274index c84eecb..4d7381d 100644
40275--- a/drivers/edac/edac_mc_sysfs.c
40276+++ b/drivers/edac/edac_mc_sysfs.c
40277@@ -154,7 +154,7 @@ static const char * const edac_caps[] = {
40278 struct dev_ch_attribute {
40279 struct device_attribute attr;
40280 int channel;
40281-};
40282+} __do_const;
40283
40284 #define DEVICE_CHANNEL(_name, _mode, _show, _store, _var) \
40285 static struct dev_ch_attribute dev_attr_legacy_##_name = \
40286@@ -1009,15 +1009,17 @@ int edac_create_sysfs_mci_device(struct mem_ctl_info *mci)
40287 }
40288
40289 if (mci->set_sdram_scrub_rate || mci->get_sdram_scrub_rate) {
40290+ pax_open_kernel();
40291 if (mci->get_sdram_scrub_rate) {
40292- dev_attr_sdram_scrub_rate.attr.mode |= S_IRUGO;
40293- dev_attr_sdram_scrub_rate.show = &mci_sdram_scrub_rate_show;
40294+ *(umode_t *)&dev_attr_sdram_scrub_rate.attr.mode |= S_IRUGO;
40295+ *(void **)&dev_attr_sdram_scrub_rate.show = &mci_sdram_scrub_rate_show;
40296 }
40297
40298 if (mci->set_sdram_scrub_rate) {
40299- dev_attr_sdram_scrub_rate.attr.mode |= S_IWUSR;
40300- dev_attr_sdram_scrub_rate.store = &mci_sdram_scrub_rate_store;
40301+ *(umode_t *)&dev_attr_sdram_scrub_rate.attr.mode |= S_IWUSR;
40302+ *(void **)&dev_attr_sdram_scrub_rate.store = &mci_sdram_scrub_rate_store;
40303 }
40304+ pax_close_kernel();
40305
40306 err = device_create_file(&mci->dev, &dev_attr_sdram_scrub_rate);
40307 if (err) {
40308diff --git a/drivers/edac/edac_pci.c b/drivers/edac/edac_pci.c
40309index 2cf44b4d..6dd2dc7 100644
40310--- a/drivers/edac/edac_pci.c
40311+++ b/drivers/edac/edac_pci.c
40312@@ -29,7 +29,7 @@
40313
40314 static DEFINE_MUTEX(edac_pci_ctls_mutex);
40315 static LIST_HEAD(edac_pci_list);
40316-static atomic_t pci_indexes = ATOMIC_INIT(0);
40317+static atomic_unchecked_t pci_indexes = ATOMIC_INIT(0);
40318
40319 /*
40320 * edac_pci_alloc_ctl_info
40321@@ -315,7 +315,7 @@ EXPORT_SYMBOL_GPL(edac_pci_reset_delay_period);
40322 */
40323 int edac_pci_alloc_index(void)
40324 {
40325- return atomic_inc_return(&pci_indexes) - 1;
40326+ return atomic_inc_return_unchecked(&pci_indexes) - 1;
40327 }
40328 EXPORT_SYMBOL_GPL(edac_pci_alloc_index);
40329
40330diff --git a/drivers/edac/edac_pci_sysfs.c b/drivers/edac/edac_pci_sysfs.c
40331index 24d877f..4e30133 100644
40332--- a/drivers/edac/edac_pci_sysfs.c
40333+++ b/drivers/edac/edac_pci_sysfs.c
40334@@ -23,8 +23,8 @@ static int edac_pci_log_pe = 1; /* log PCI parity errors */
40335 static int edac_pci_log_npe = 1; /* log PCI non-parity error errors */
40336 static int edac_pci_poll_msec = 1000; /* one second workq period */
40337
40338-static atomic_t pci_parity_count = ATOMIC_INIT(0);
40339-static atomic_t pci_nonparity_count = ATOMIC_INIT(0);
40340+static atomic_unchecked_t pci_parity_count = ATOMIC_INIT(0);
40341+static atomic_unchecked_t pci_nonparity_count = ATOMIC_INIT(0);
40342
40343 static struct kobject *edac_pci_top_main_kobj;
40344 static atomic_t edac_pci_sysfs_refcount = ATOMIC_INIT(0);
40345@@ -232,7 +232,7 @@ struct edac_pci_dev_attribute {
40346 void *value;
40347 ssize_t(*show) (void *, char *);
40348 ssize_t(*store) (void *, const char *, size_t);
40349-};
40350+} __do_const;
40351
40352 /* Set of show/store abstract level functions for PCI Parity object */
40353 static ssize_t edac_pci_dev_show(struct kobject *kobj, struct attribute *attr,
40354@@ -576,7 +576,7 @@ static void edac_pci_dev_parity_test(struct pci_dev *dev)
40355 edac_printk(KERN_CRIT, EDAC_PCI,
40356 "Signaled System Error on %s\n",
40357 pci_name(dev));
40358- atomic_inc(&pci_nonparity_count);
40359+ atomic_inc_unchecked(&pci_nonparity_count);
40360 }
40361
40362 if (status & (PCI_STATUS_PARITY)) {
40363@@ -584,7 +584,7 @@ static void edac_pci_dev_parity_test(struct pci_dev *dev)
40364 "Master Data Parity Error on %s\n",
40365 pci_name(dev));
40366
40367- atomic_inc(&pci_parity_count);
40368+ atomic_inc_unchecked(&pci_parity_count);
40369 }
40370
40371 if (status & (PCI_STATUS_DETECTED_PARITY)) {
40372@@ -592,7 +592,7 @@ static void edac_pci_dev_parity_test(struct pci_dev *dev)
40373 "Detected Parity Error on %s\n",
40374 pci_name(dev));
40375
40376- atomic_inc(&pci_parity_count);
40377+ atomic_inc_unchecked(&pci_parity_count);
40378 }
40379 }
40380
40381@@ -615,7 +615,7 @@ static void edac_pci_dev_parity_test(struct pci_dev *dev)
40382 edac_printk(KERN_CRIT, EDAC_PCI, "Bridge "
40383 "Signaled System Error on %s\n",
40384 pci_name(dev));
40385- atomic_inc(&pci_nonparity_count);
40386+ atomic_inc_unchecked(&pci_nonparity_count);
40387 }
40388
40389 if (status & (PCI_STATUS_PARITY)) {
40390@@ -623,7 +623,7 @@ static void edac_pci_dev_parity_test(struct pci_dev *dev)
40391 "Master Data Parity Error on "
40392 "%s\n", pci_name(dev));
40393
40394- atomic_inc(&pci_parity_count);
40395+ atomic_inc_unchecked(&pci_parity_count);
40396 }
40397
40398 if (status & (PCI_STATUS_DETECTED_PARITY)) {
40399@@ -631,7 +631,7 @@ static void edac_pci_dev_parity_test(struct pci_dev *dev)
40400 "Detected Parity Error on %s\n",
40401 pci_name(dev));
40402
40403- atomic_inc(&pci_parity_count);
40404+ atomic_inc_unchecked(&pci_parity_count);
40405 }
40406 }
40407 }
40408@@ -669,7 +669,7 @@ void edac_pci_do_parity_check(void)
40409 if (!check_pci_errors)
40410 return;
40411
40412- before_count = atomic_read(&pci_parity_count);
40413+ before_count = atomic_read_unchecked(&pci_parity_count);
40414
40415 /* scan all PCI devices looking for a Parity Error on devices and
40416 * bridges.
40417@@ -681,7 +681,7 @@ void edac_pci_do_parity_check(void)
40418 /* Only if operator has selected panic on PCI Error */
40419 if (edac_pci_get_panic_on_pe()) {
40420 /* If the count is different 'after' from 'before' */
40421- if (before_count != atomic_read(&pci_parity_count))
40422+ if (before_count != atomic_read_unchecked(&pci_parity_count))
40423 panic("EDAC: PCI Parity Error");
40424 }
40425 }
40426diff --git a/drivers/edac/mce_amd.h b/drivers/edac/mce_amd.h
40427index c2359a1..8bd119d 100644
40428--- a/drivers/edac/mce_amd.h
40429+++ b/drivers/edac/mce_amd.h
40430@@ -74,7 +74,7 @@ struct amd_decoder_ops {
40431 bool (*mc0_mce)(u16, u8);
40432 bool (*mc1_mce)(u16, u8);
40433 bool (*mc2_mce)(u16, u8);
40434-};
40435+} __no_const;
40436
40437 void amd_report_gart_errors(bool);
40438 void amd_register_ecc_decoder(void (*f)(int, struct mce *));
40439diff --git a/drivers/firewire/core-card.c b/drivers/firewire/core-card.c
40440index 57ea7f4..af06b76 100644
40441--- a/drivers/firewire/core-card.c
40442+++ b/drivers/firewire/core-card.c
40443@@ -528,9 +528,9 @@ void fw_card_initialize(struct fw_card *card,
40444 const struct fw_card_driver *driver,
40445 struct device *device)
40446 {
40447- static atomic_t index = ATOMIC_INIT(-1);
40448+ static atomic_unchecked_t index = ATOMIC_INIT(-1);
40449
40450- card->index = atomic_inc_return(&index);
40451+ card->index = atomic_inc_return_unchecked(&index);
40452 card->driver = driver;
40453 card->device = device;
40454 card->current_tlabel = 0;
40455@@ -680,7 +680,7 @@ EXPORT_SYMBOL_GPL(fw_card_release);
40456
40457 void fw_core_remove_card(struct fw_card *card)
40458 {
40459- struct fw_card_driver dummy_driver = dummy_driver_template;
40460+ fw_card_driver_no_const dummy_driver = dummy_driver_template;
40461
40462 card->driver->update_phy_reg(card, 4,
40463 PHY_LINK_ACTIVE | PHY_CONTENDER, 0);
40464diff --git a/drivers/firewire/core-device.c b/drivers/firewire/core-device.c
40465index f9e3aee..269dbdb 100644
40466--- a/drivers/firewire/core-device.c
40467+++ b/drivers/firewire/core-device.c
40468@@ -256,7 +256,7 @@ EXPORT_SYMBOL(fw_device_enable_phys_dma);
40469 struct config_rom_attribute {
40470 struct device_attribute attr;
40471 u32 key;
40472-};
40473+} __do_const;
40474
40475 static ssize_t show_immediate(struct device *dev,
40476 struct device_attribute *dattr, char *buf)
40477diff --git a/drivers/firewire/core-transaction.c b/drivers/firewire/core-transaction.c
40478index d6a09b9..18e90dd 100644
40479--- a/drivers/firewire/core-transaction.c
40480+++ b/drivers/firewire/core-transaction.c
40481@@ -38,6 +38,7 @@
40482 #include <linux/timer.h>
40483 #include <linux/types.h>
40484 #include <linux/workqueue.h>
40485+#include <linux/sched.h>
40486
40487 #include <asm/byteorder.h>
40488
40489diff --git a/drivers/firewire/core.h b/drivers/firewire/core.h
40490index e1480ff6..1a429bd 100644
40491--- a/drivers/firewire/core.h
40492+++ b/drivers/firewire/core.h
40493@@ -111,6 +111,7 @@ struct fw_card_driver {
40494
40495 int (*stop_iso)(struct fw_iso_context *ctx);
40496 };
40497+typedef struct fw_card_driver __no_const fw_card_driver_no_const;
40498
40499 void fw_card_initialize(struct fw_card *card,
40500 const struct fw_card_driver *driver, struct device *device);
40501diff --git a/drivers/firewire/ohci.c b/drivers/firewire/ohci.c
40502index f51d376..b118e40 100644
40503--- a/drivers/firewire/ohci.c
40504+++ b/drivers/firewire/ohci.c
40505@@ -2049,10 +2049,12 @@ static void bus_reset_work(struct work_struct *work)
40506 be32_to_cpu(ohci->next_header));
40507 }
40508
40509+#ifndef CONFIG_GRKERNSEC
40510 if (param_remote_dma) {
40511 reg_write(ohci, OHCI1394_PhyReqFilterHiSet, ~0);
40512 reg_write(ohci, OHCI1394_PhyReqFilterLoSet, ~0);
40513 }
40514+#endif
40515
40516 spin_unlock_irq(&ohci->lock);
40517
40518@@ -2584,8 +2586,10 @@ static int ohci_enable_phys_dma(struct fw_card *card,
40519 unsigned long flags;
40520 int n, ret = 0;
40521
40522+#ifndef CONFIG_GRKERNSEC
40523 if (param_remote_dma)
40524 return 0;
40525+#endif
40526
40527 /*
40528 * FIXME: Make sure this bitmask is cleared when we clear the busReset
40529diff --git a/drivers/firmware/dmi-id.c b/drivers/firmware/dmi-id.c
40530index 94a58a0..f5eba42 100644
40531--- a/drivers/firmware/dmi-id.c
40532+++ b/drivers/firmware/dmi-id.c
40533@@ -16,7 +16,7 @@
40534 struct dmi_device_attribute{
40535 struct device_attribute dev_attr;
40536 int field;
40537-};
40538+} __do_const;
40539 #define to_dmi_dev_attr(_dev_attr) \
40540 container_of(_dev_attr, struct dmi_device_attribute, dev_attr)
40541
40542diff --git a/drivers/firmware/efi/cper.c b/drivers/firmware/efi/cper.c
40543index 4fd9961..52d60ce 100644
40544--- a/drivers/firmware/efi/cper.c
40545+++ b/drivers/firmware/efi/cper.c
40546@@ -44,12 +44,12 @@ static char rcd_decode_str[CPER_REC_LEN];
40547 */
40548 u64 cper_next_record_id(void)
40549 {
40550- static atomic64_t seq;
40551+ static atomic64_unchecked_t seq;
40552
40553- if (!atomic64_read(&seq))
40554- atomic64_set(&seq, ((u64)get_seconds()) << 32);
40555+ if (!atomic64_read_unchecked(&seq))
40556+ atomic64_set_unchecked(&seq, ((u64)get_seconds()) << 32);
40557
40558- return atomic64_inc_return(&seq);
40559+ return atomic64_inc_return_unchecked(&seq);
40560 }
40561 EXPORT_SYMBOL_GPL(cper_next_record_id);
40562
40563diff --git a/drivers/firmware/efi/efi.c b/drivers/firmware/efi/efi.c
40564index 3061bb8..92b5fcc 100644
40565--- a/drivers/firmware/efi/efi.c
40566+++ b/drivers/firmware/efi/efi.c
40567@@ -160,14 +160,16 @@ static struct attribute_group efi_subsys_attr_group = {
40568 };
40569
40570 static struct efivars generic_efivars;
40571-static struct efivar_operations generic_ops;
40572+static efivar_operations_no_const generic_ops __read_only;
40573
40574 static int generic_ops_register(void)
40575 {
40576- generic_ops.get_variable = efi.get_variable;
40577- generic_ops.set_variable = efi.set_variable;
40578- generic_ops.get_next_variable = efi.get_next_variable;
40579- generic_ops.query_variable_store = efi_query_variable_store;
40580+ pax_open_kernel();
40581+ *(void **)&generic_ops.get_variable = efi.get_variable;
40582+ *(void **)&generic_ops.set_variable = efi.set_variable;
40583+ *(void **)&generic_ops.get_next_variable = efi.get_next_variable;
40584+ *(void **)&generic_ops.query_variable_store = efi_query_variable_store;
40585+ pax_close_kernel();
40586
40587 return efivars_register(&generic_efivars, &generic_ops, efi_kobj);
40588 }
40589diff --git a/drivers/firmware/efi/efivars.c b/drivers/firmware/efi/efivars.c
40590index 7b2e049..a253334 100644
40591--- a/drivers/firmware/efi/efivars.c
40592+++ b/drivers/firmware/efi/efivars.c
40593@@ -589,7 +589,7 @@ efivar_create_sysfs_entry(struct efivar_entry *new_var)
40594 static int
40595 create_efivars_bin_attributes(void)
40596 {
40597- struct bin_attribute *attr;
40598+ bin_attribute_no_const *attr;
40599 int error;
40600
40601 /* new_var */
40602diff --git a/drivers/firmware/efi/runtime-map.c b/drivers/firmware/efi/runtime-map.c
40603index 87b8e3b..c4afb35 100644
40604--- a/drivers/firmware/efi/runtime-map.c
40605+++ b/drivers/firmware/efi/runtime-map.c
40606@@ -97,7 +97,7 @@ static void map_release(struct kobject *kobj)
40607 kfree(entry);
40608 }
40609
40610-static struct kobj_type __refdata map_ktype = {
40611+static const struct kobj_type __refconst map_ktype = {
40612 .sysfs_ops = &map_attr_ops,
40613 .default_attrs = def_attrs,
40614 .release = map_release,
40615diff --git a/drivers/firmware/google/gsmi.c b/drivers/firmware/google/gsmi.c
40616index f1ab05e..ab51228 100644
40617--- a/drivers/firmware/google/gsmi.c
40618+++ b/drivers/firmware/google/gsmi.c
40619@@ -709,7 +709,7 @@ static u32 __init hash_oem_table_id(char s[8])
40620 return local_hash_64(input, 32);
40621 }
40622
40623-static struct dmi_system_id gsmi_dmi_table[] __initdata = {
40624+static const struct dmi_system_id gsmi_dmi_table[] __initconst = {
40625 {
40626 .ident = "Google Board",
40627 .matches = {
40628diff --git a/drivers/firmware/google/memconsole.c b/drivers/firmware/google/memconsole.c
40629index 2f569aa..26e4f39 100644
40630--- a/drivers/firmware/google/memconsole.c
40631+++ b/drivers/firmware/google/memconsole.c
40632@@ -136,7 +136,7 @@ static bool __init found_memconsole(void)
40633 return false;
40634 }
40635
40636-static struct dmi_system_id memconsole_dmi_table[] __initdata = {
40637+static const struct dmi_system_id memconsole_dmi_table[] __initconst = {
40638 {
40639 .ident = "Google Board",
40640 .matches = {
40641@@ -155,7 +155,10 @@ static int __init memconsole_init(void)
40642 if (!found_memconsole())
40643 return -ENODEV;
40644
40645- memconsole_bin_attr.size = memconsole_length;
40646+ pax_open_kernel();
40647+ *(size_t *)&memconsole_bin_attr.size = memconsole_length;
40648+ pax_close_kernel();
40649+
40650 return sysfs_create_bin_file(firmware_kobj, &memconsole_bin_attr);
40651 }
40652
40653diff --git a/drivers/firmware/memmap.c b/drivers/firmware/memmap.c
40654index cc016c61..d35279e 100644
40655--- a/drivers/firmware/memmap.c
40656+++ b/drivers/firmware/memmap.c
40657@@ -124,7 +124,7 @@ static void __meminit release_firmware_map_entry(struct kobject *kobj)
40658 kfree(entry);
40659 }
40660
40661-static struct kobj_type __refdata memmap_ktype = {
40662+static const struct kobj_type __refconst memmap_ktype = {
40663 .release = release_firmware_map_entry,
40664 .sysfs_ops = &memmap_attr_ops,
40665 .default_attrs = def_attrs,
40666diff --git a/drivers/gpio/gpio-em.c b/drivers/gpio/gpio-em.c
40667index 3cfcfc6..09d6f117 100644
40668--- a/drivers/gpio/gpio-em.c
40669+++ b/drivers/gpio/gpio-em.c
40670@@ -278,7 +278,7 @@ static int em_gio_probe(struct platform_device *pdev)
40671 struct em_gio_priv *p;
40672 struct resource *io[2], *irq[2];
40673 struct gpio_chip *gpio_chip;
40674- struct irq_chip *irq_chip;
40675+ irq_chip_no_const *irq_chip;
40676 const char *name = dev_name(&pdev->dev);
40677 int ret;
40678
40679diff --git a/drivers/gpio/gpio-ich.c b/drivers/gpio/gpio-ich.c
40680index 7818cd1..1be40e5 100644
40681--- a/drivers/gpio/gpio-ich.c
40682+++ b/drivers/gpio/gpio-ich.c
40683@@ -94,7 +94,7 @@ struct ichx_desc {
40684 * this option allows driver caching written output values
40685 */
40686 bool use_outlvl_cache;
40687-};
40688+} __do_const;
40689
40690 static struct {
40691 spinlock_t lock;
40692diff --git a/drivers/gpio/gpio-omap.c b/drivers/gpio/gpio-omap.c
40693index f476ae2..05e1bdd 100644
40694--- a/drivers/gpio/gpio-omap.c
40695+++ b/drivers/gpio/gpio-omap.c
40696@@ -1188,7 +1188,7 @@ static int omap_gpio_probe(struct platform_device *pdev)
40697 const struct omap_gpio_platform_data *pdata;
40698 struct resource *res;
40699 struct gpio_bank *bank;
40700- struct irq_chip *irqc;
40701+ irq_chip_no_const *irqc;
40702 int ret;
40703
40704 match = of_match_device(of_match_ptr(omap_gpio_match), dev);
40705diff --git a/drivers/gpio/gpio-rcar.c b/drivers/gpio/gpio-rcar.c
40706index c49522e..9a7ee54 100644
40707--- a/drivers/gpio/gpio-rcar.c
40708+++ b/drivers/gpio/gpio-rcar.c
40709@@ -348,7 +348,7 @@ static int gpio_rcar_probe(struct platform_device *pdev)
40710 struct gpio_rcar_priv *p;
40711 struct resource *io, *irq;
40712 struct gpio_chip *gpio_chip;
40713- struct irq_chip *irq_chip;
40714+ irq_chip_no_const *irq_chip;
40715 struct device *dev = &pdev->dev;
40716 const char *name = dev_name(dev);
40717 int ret;
40718diff --git a/drivers/gpio/gpio-vr41xx.c b/drivers/gpio/gpio-vr41xx.c
40719index c1caa45..f0f97d2 100644
40720--- a/drivers/gpio/gpio-vr41xx.c
40721+++ b/drivers/gpio/gpio-vr41xx.c
40722@@ -224,7 +224,7 @@ static int giu_get_irq(unsigned int irq)
40723 printk(KERN_ERR "spurious GIU interrupt: %04x(%04x),%04x(%04x)\n",
40724 maskl, pendl, maskh, pendh);
40725
40726- atomic_inc(&irq_err_count);
40727+ atomic_inc_unchecked(&irq_err_count);
40728
40729 return -EINVAL;
40730 }
40731diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
40732index 1ca9295..9f3d481 100644
40733--- a/drivers/gpio/gpiolib.c
40734+++ b/drivers/gpio/gpiolib.c
40735@@ -554,8 +554,10 @@ static void gpiochip_irqchip_remove(struct gpio_chip *gpiochip)
40736 }
40737
40738 if (gpiochip->irqchip) {
40739- gpiochip->irqchip->irq_request_resources = NULL;
40740- gpiochip->irqchip->irq_release_resources = NULL;
40741+ pax_open_kernel();
40742+ *(void **)&gpiochip->irqchip->irq_request_resources = NULL;
40743+ *(void **)&gpiochip->irqchip->irq_release_resources = NULL;
40744+ pax_close_kernel();
40745 gpiochip->irqchip = NULL;
40746 }
40747 }
40748@@ -621,8 +623,11 @@ int gpiochip_irqchip_add(struct gpio_chip *gpiochip,
40749 gpiochip->irqchip = NULL;
40750 return -EINVAL;
40751 }
40752- irqchip->irq_request_resources = gpiochip_irq_reqres;
40753- irqchip->irq_release_resources = gpiochip_irq_relres;
40754+
40755+ pax_open_kernel();
40756+ *(void **)&irqchip->irq_request_resources = gpiochip_irq_reqres;
40757+ *(void **)&irqchip->irq_release_resources = gpiochip_irq_relres;
40758+ pax_close_kernel();
40759
40760 /*
40761 * Prepare the mapping since the irqchip shall be orthogonal to
40762diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.h b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.h
40763index 488f51d..301d462 100644
40764--- a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.h
40765+++ b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.h
40766@@ -118,7 +118,7 @@ struct device_queue_manager_ops {
40767 enum cache_policy alternate_policy,
40768 void __user *alternate_aperture_base,
40769 uint64_t alternate_aperture_size);
40770-};
40771+} __no_const;
40772
40773 /**
40774 * struct device_queue_manager
40775diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.h b/drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.h
40776index 5940531..a75b0e5 100644
40777--- a/drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.h
40778+++ b/drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.h
40779@@ -62,7 +62,7 @@ struct kernel_queue_ops {
40780
40781 void (*submit_packet)(struct kernel_queue *kq);
40782 void (*rollback_packet)(struct kernel_queue *kq);
40783-};
40784+} __no_const;
40785
40786 struct kernel_queue {
40787 struct kernel_queue_ops ops;
40788diff --git a/drivers/gpu/drm/drm_context.c b/drivers/gpu/drm/drm_context.c
40789index 9b23525..65f4110 100644
40790--- a/drivers/gpu/drm/drm_context.c
40791+++ b/drivers/gpu/drm/drm_context.c
40792@@ -53,6 +53,9 @@ struct drm_ctx_list {
40793 */
40794 void drm_legacy_ctxbitmap_free(struct drm_device * dev, int ctx_handle)
40795 {
40796+ if (!drm_core_check_feature(dev, DRIVER_KMS_LEGACY_CONTEXT))
40797+ return;
40798+
40799 mutex_lock(&dev->struct_mutex);
40800 idr_remove(&dev->ctx_idr, ctx_handle);
40801 mutex_unlock(&dev->struct_mutex);
40802@@ -87,6 +90,9 @@ static int drm_legacy_ctxbitmap_next(struct drm_device * dev)
40803 */
40804 int drm_legacy_ctxbitmap_init(struct drm_device * dev)
40805 {
40806+ if (!drm_core_check_feature(dev, DRIVER_KMS_LEGACY_CONTEXT))
40807+ return -EINVAL;
40808+
40809 idr_init(&dev->ctx_idr);
40810 return 0;
40811 }
40812@@ -101,6 +107,9 @@ int drm_legacy_ctxbitmap_init(struct drm_device * dev)
40813 */
40814 void drm_legacy_ctxbitmap_cleanup(struct drm_device * dev)
40815 {
40816+ if (!drm_core_check_feature(dev, DRIVER_KMS_LEGACY_CONTEXT))
40817+ return;
40818+
40819 mutex_lock(&dev->struct_mutex);
40820 idr_destroy(&dev->ctx_idr);
40821 mutex_unlock(&dev->struct_mutex);
40822@@ -119,11 +128,14 @@ void drm_legacy_ctxbitmap_flush(struct drm_device *dev, struct drm_file *file)
40823 {
40824 struct drm_ctx_list *pos, *tmp;
40825
40826+ if (!drm_core_check_feature(dev, DRIVER_KMS_LEGACY_CONTEXT))
40827+ return;
40828+
40829 mutex_lock(&dev->ctxlist_mutex);
40830
40831 list_for_each_entry_safe(pos, tmp, &dev->ctxlist, head) {
40832 if (pos->tag == file &&
40833- pos->handle != DRM_KERNEL_CONTEXT) {
40834+ _DRM_LOCKING_CONTEXT(pos->handle) != DRM_KERNEL_CONTEXT) {
40835 if (dev->driver->context_dtor)
40836 dev->driver->context_dtor(dev, pos->handle);
40837
40838@@ -161,6 +173,9 @@ int drm_legacy_getsareactx(struct drm_device *dev, void *data,
40839 struct drm_local_map *map;
40840 struct drm_map_list *_entry;
40841
40842+ if (!drm_core_check_feature(dev, DRIVER_KMS_LEGACY_CONTEXT))
40843+ return -EINVAL;
40844+
40845 mutex_lock(&dev->struct_mutex);
40846
40847 map = idr_find(&dev->ctx_idr, request->ctx_id);
40848@@ -205,6 +220,9 @@ int drm_legacy_setsareactx(struct drm_device *dev, void *data,
40849 struct drm_local_map *map = NULL;
40850 struct drm_map_list *r_list = NULL;
40851
40852+ if (!drm_core_check_feature(dev, DRIVER_KMS_LEGACY_CONTEXT))
40853+ return -EINVAL;
40854+
40855 mutex_lock(&dev->struct_mutex);
40856 list_for_each_entry(r_list, &dev->maplist, head) {
40857 if (r_list->map
40858@@ -277,7 +295,13 @@ static int drm_context_switch_complete(struct drm_device *dev,
40859 {
40860 dev->last_context = new; /* PRE/POST: This is the _only_ writer. */
40861
40862- if (!_DRM_LOCK_IS_HELD(file_priv->master->lock.hw_lock->lock)) {
40863+ if (file_priv->master->lock.hw_lock == NULL) {
40864+ DRM_ERROR(
40865+ "Device has been unregistered. Hard exit. Process %d\n",
40866+ task_pid_nr(current));
40867+ send_sig(SIGTERM, current, 0);
40868+ return -EPERM;
40869+ } else if (!_DRM_LOCK_IS_HELD(file_priv->master->lock.hw_lock->lock)) {
40870 DRM_ERROR("Lock isn't held after context switch\n");
40871 }
40872
40873@@ -305,6 +329,9 @@ int drm_legacy_resctx(struct drm_device *dev, void *data,
40874 struct drm_ctx ctx;
40875 int i;
40876
40877+ if (!drm_core_check_feature(dev, DRIVER_KMS_LEGACY_CONTEXT))
40878+ return -EINVAL;
40879+
40880 if (res->count >= DRM_RESERVED_CONTEXTS) {
40881 memset(&ctx, 0, sizeof(ctx));
40882 for (i = 0; i < DRM_RESERVED_CONTEXTS; i++) {
40883@@ -335,8 +362,11 @@ int drm_legacy_addctx(struct drm_device *dev, void *data,
40884 struct drm_ctx_list *ctx_entry;
40885 struct drm_ctx *ctx = data;
40886
40887+ if (!drm_core_check_feature(dev, DRIVER_KMS_LEGACY_CONTEXT))
40888+ return -EINVAL;
40889+
40890 ctx->handle = drm_legacy_ctxbitmap_next(dev);
40891- if (ctx->handle == DRM_KERNEL_CONTEXT) {
40892+ if (_DRM_LOCKING_CONTEXT(ctx->handle) == DRM_KERNEL_CONTEXT) {
40893 /* Skip kernel's context and get a new one. */
40894 ctx->handle = drm_legacy_ctxbitmap_next(dev);
40895 }
40896@@ -378,6 +408,9 @@ int drm_legacy_getctx(struct drm_device *dev, void *data,
40897 {
40898 struct drm_ctx *ctx = data;
40899
40900+ if (!drm_core_check_feature(dev, DRIVER_KMS_LEGACY_CONTEXT))
40901+ return -EINVAL;
40902+
40903 /* This is 0, because we don't handle any context flags */
40904 ctx->flags = 0;
40905
40906@@ -400,6 +433,9 @@ int drm_legacy_switchctx(struct drm_device *dev, void *data,
40907 {
40908 struct drm_ctx *ctx = data;
40909
40910+ if (!drm_core_check_feature(dev, DRIVER_KMS_LEGACY_CONTEXT))
40911+ return -EINVAL;
40912+
40913 DRM_DEBUG("%d\n", ctx->handle);
40914 return drm_context_switch(dev, dev->last_context, ctx->handle);
40915 }
40916@@ -420,6 +456,9 @@ int drm_legacy_newctx(struct drm_device *dev, void *data,
40917 {
40918 struct drm_ctx *ctx = data;
40919
40920+ if (!drm_core_check_feature(dev, DRIVER_KMS_LEGACY_CONTEXT))
40921+ return -EINVAL;
40922+
40923 DRM_DEBUG("%d\n", ctx->handle);
40924 drm_context_switch_complete(dev, file_priv, ctx->handle);
40925
40926@@ -442,8 +481,11 @@ int drm_legacy_rmctx(struct drm_device *dev, void *data,
40927 {
40928 struct drm_ctx *ctx = data;
40929
40930+ if (!drm_core_check_feature(dev, DRIVER_KMS_LEGACY_CONTEXT))
40931+ return -EINVAL;
40932+
40933 DRM_DEBUG("%d\n", ctx->handle);
40934- if (ctx->handle != DRM_KERNEL_CONTEXT) {
40935+ if (_DRM_LOCKING_CONTEXT(ctx->handle) != DRM_KERNEL_CONTEXT) {
40936 if (dev->driver->context_dtor)
40937 dev->driver->context_dtor(dev, ctx->handle);
40938 drm_legacy_ctxbitmap_free(dev, ctx->handle);
40939diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
40940index b6f076b..2918de2 100644
40941--- a/drivers/gpu/drm/drm_crtc.c
40942+++ b/drivers/gpu/drm/drm_crtc.c
40943@@ -4118,7 +4118,7 @@ int drm_mode_getproperty_ioctl(struct drm_device *dev,
40944 goto done;
40945 }
40946
40947- if (copy_to_user(&enum_ptr[copied].name,
40948+ if (copy_to_user(enum_ptr[copied].name,
40949 &prop_enum->name, DRM_PROP_NAME_LEN)) {
40950 ret = -EFAULT;
40951 goto done;
40952diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c
40953index d512134..a80a8e4 100644
40954--- a/drivers/gpu/drm/drm_drv.c
40955+++ b/drivers/gpu/drm/drm_drv.c
40956@@ -448,7 +448,7 @@ void drm_unplug_dev(struct drm_device *dev)
40957
40958 drm_device_set_unplugged(dev);
40959
40960- if (dev->open_count == 0) {
40961+ if (local_read(&dev->open_count) == 0) {
40962 drm_put_dev(dev);
40963 }
40964 mutex_unlock(&drm_global_mutex);
40965@@ -596,10 +596,13 @@ struct drm_device *drm_dev_alloc(struct drm_driver *driver,
40966 if (drm_ht_create(&dev->map_hash, 12))
40967 goto err_minors;
40968
40969- ret = drm_legacy_ctxbitmap_init(dev);
40970- if (ret) {
40971- DRM_ERROR("Cannot allocate memory for context bitmap.\n");
40972- goto err_ht;
40973+ if (drm_core_check_feature(dev, DRIVER_KMS_LEGACY_CONTEXT)) {
40974+ ret = drm_legacy_ctxbitmap_init(dev);
40975+ if (ret) {
40976+ DRM_ERROR(
40977+ "Cannot allocate memory for context bitmap.\n");
40978+ goto err_ht;
40979+ }
40980 }
40981
40982 if (drm_core_check_feature(dev, DRIVER_GEM)) {
40983diff --git a/drivers/gpu/drm/drm_fops.c b/drivers/gpu/drm/drm_fops.c
40984index 076dd60..e4a4ba7 100644
40985--- a/drivers/gpu/drm/drm_fops.c
40986+++ b/drivers/gpu/drm/drm_fops.c
40987@@ -89,7 +89,7 @@ int drm_open(struct inode *inode, struct file *filp)
40988 return PTR_ERR(minor);
40989
40990 dev = minor->dev;
40991- if (!dev->open_count++)
40992+ if (local_inc_return(&dev->open_count) == 1)
40993 need_setup = 1;
40994
40995 /* share address_space across all char-devs of a single device */
40996@@ -106,7 +106,7 @@ int drm_open(struct inode *inode, struct file *filp)
40997 return 0;
40998
40999 err_undo:
41000- dev->open_count--;
41001+ local_dec(&dev->open_count);
41002 drm_minor_release(minor);
41003 return retcode;
41004 }
41005@@ -376,7 +376,7 @@ int drm_release(struct inode *inode, struct file *filp)
41006
41007 mutex_lock(&drm_global_mutex);
41008
41009- DRM_DEBUG("open_count = %d\n", dev->open_count);
41010+ DRM_DEBUG("open_count = %ld\n", local_read(&dev->open_count));
41011
41012 mutex_lock(&dev->struct_mutex);
41013 list_del(&file_priv->lhead);
41014@@ -389,10 +389,10 @@ int drm_release(struct inode *inode, struct file *filp)
41015 * Begin inline drm_release
41016 */
41017
41018- DRM_DEBUG("pid = %d, device = 0x%lx, open_count = %d\n",
41019+ DRM_DEBUG("pid = %d, device = 0x%lx, open_count = %ld\n",
41020 task_pid_nr(current),
41021 (long)old_encode_dev(file_priv->minor->kdev->devt),
41022- dev->open_count);
41023+ local_read(&dev->open_count));
41024
41025 /* Release any auth tokens that might point to this file_priv,
41026 (do that under the drm_global_mutex) */
41027@@ -465,7 +465,7 @@ int drm_release(struct inode *inode, struct file *filp)
41028 * End inline drm_release
41029 */
41030
41031- if (!--dev->open_count) {
41032+ if (local_dec_and_test(&dev->open_count)) {
41033 retcode = drm_lastclose(dev);
41034 if (drm_device_is_unplugged(dev))
41035 drm_put_dev(dev);
41036diff --git a/drivers/gpu/drm/drm_global.c b/drivers/gpu/drm/drm_global.c
41037index 3d2e91c..d31c4c9 100644
41038--- a/drivers/gpu/drm/drm_global.c
41039+++ b/drivers/gpu/drm/drm_global.c
41040@@ -36,7 +36,7 @@
41041 struct drm_global_item {
41042 struct mutex mutex;
41043 void *object;
41044- int refcount;
41045+ atomic_t refcount;
41046 };
41047
41048 static struct drm_global_item glob[DRM_GLOBAL_NUM];
41049@@ -49,7 +49,7 @@ void drm_global_init(void)
41050 struct drm_global_item *item = &glob[i];
41051 mutex_init(&item->mutex);
41052 item->object = NULL;
41053- item->refcount = 0;
41054+ atomic_set(&item->refcount, 0);
41055 }
41056 }
41057
41058@@ -59,7 +59,7 @@ void drm_global_release(void)
41059 for (i = 0; i < DRM_GLOBAL_NUM; ++i) {
41060 struct drm_global_item *item = &glob[i];
41061 BUG_ON(item->object != NULL);
41062- BUG_ON(item->refcount != 0);
41063+ BUG_ON(atomic_read(&item->refcount) != 0);
41064 }
41065 }
41066
41067@@ -69,7 +69,7 @@ int drm_global_item_ref(struct drm_global_reference *ref)
41068 struct drm_global_item *item = &glob[ref->global_type];
41069
41070 mutex_lock(&item->mutex);
41071- if (item->refcount == 0) {
41072+ if (atomic_read(&item->refcount) == 0) {
41073 item->object = kzalloc(ref->size, GFP_KERNEL);
41074 if (unlikely(item->object == NULL)) {
41075 ret = -ENOMEM;
41076@@ -82,7 +82,7 @@ int drm_global_item_ref(struct drm_global_reference *ref)
41077 goto out_err;
41078
41079 }
41080- ++item->refcount;
41081+ atomic_inc(&item->refcount);
41082 ref->object = item->object;
41083 mutex_unlock(&item->mutex);
41084 return 0;
41085@@ -98,9 +98,9 @@ void drm_global_item_unref(struct drm_global_reference *ref)
41086 struct drm_global_item *item = &glob[ref->global_type];
41087
41088 mutex_lock(&item->mutex);
41089- BUG_ON(item->refcount == 0);
41090+ BUG_ON(atomic_read(&item->refcount) == 0);
41091 BUG_ON(ref->object != item->object);
41092- if (--item->refcount == 0) {
41093+ if (atomic_dec_and_test(&item->refcount)) {
41094 ref->release(ref);
41095 item->object = NULL;
41096 }
41097diff --git a/drivers/gpu/drm/drm_info.c b/drivers/gpu/drm/drm_info.c
41098index f1b32f9..394f791 100644
41099--- a/drivers/gpu/drm/drm_info.c
41100+++ b/drivers/gpu/drm/drm_info.c
41101@@ -76,10 +76,13 @@ int drm_vm_info(struct seq_file *m, void *data)
41102 struct drm_local_map *map;
41103 struct drm_map_list *r_list;
41104
41105- /* Hardcoded from _DRM_FRAME_BUFFER,
41106- _DRM_REGISTERS, _DRM_SHM, _DRM_AGP, and
41107- _DRM_SCATTER_GATHER and _DRM_CONSISTENT */
41108- const char *types[] = { "FB", "REG", "SHM", "AGP", "SG", "PCI" };
41109+ static const char * const types[] = {
41110+ [_DRM_FRAME_BUFFER] = "FB",
41111+ [_DRM_REGISTERS] = "REG",
41112+ [_DRM_SHM] = "SHM",
41113+ [_DRM_AGP] = "AGP",
41114+ [_DRM_SCATTER_GATHER] = "SG",
41115+ [_DRM_CONSISTENT] = "PCI"};
41116 const char *type;
41117 int i;
41118
41119@@ -90,7 +93,7 @@ int drm_vm_info(struct seq_file *m, void *data)
41120 map = r_list->map;
41121 if (!map)
41122 continue;
41123- if (map->type < 0 || map->type > 5)
41124+ if (map->type >= ARRAY_SIZE(types))
41125 type = "??";
41126 else
41127 type = types[map->type];
41128diff --git a/drivers/gpu/drm/drm_ioc32.c b/drivers/gpu/drm/drm_ioc32.c
41129index 2f4c4343..dd12cd2 100644
41130--- a/drivers/gpu/drm/drm_ioc32.c
41131+++ b/drivers/gpu/drm/drm_ioc32.c
41132@@ -457,7 +457,7 @@ static int compat_drm_infobufs(struct file *file, unsigned int cmd,
41133 request = compat_alloc_user_space(nbytes);
41134 if (!access_ok(VERIFY_WRITE, request, nbytes))
41135 return -EFAULT;
41136- list = (struct drm_buf_desc *) (request + 1);
41137+ list = (struct drm_buf_desc __user *) (request + 1);
41138
41139 if (__put_user(count, &request->count)
41140 || __put_user(list, &request->list))
41141@@ -518,7 +518,7 @@ static int compat_drm_mapbufs(struct file *file, unsigned int cmd,
41142 request = compat_alloc_user_space(nbytes);
41143 if (!access_ok(VERIFY_WRITE, request, nbytes))
41144 return -EFAULT;
41145- list = (struct drm_buf_pub *) (request + 1);
41146+ list = (struct drm_buf_pub __user *) (request + 1);
41147
41148 if (__put_user(count, &request->count)
41149 || __put_user(list, &request->list))
41150@@ -1016,7 +1016,7 @@ static int compat_drm_wait_vblank(struct file *file, unsigned int cmd,
41151 return 0;
41152 }
41153
41154-drm_ioctl_compat_t *drm_compat_ioctls[] = {
41155+drm_ioctl_compat_t drm_compat_ioctls[] = {
41156 [DRM_IOCTL_NR(DRM_IOCTL_VERSION32)] = compat_drm_version,
41157 [DRM_IOCTL_NR(DRM_IOCTL_GET_UNIQUE32)] = compat_drm_getunique,
41158 [DRM_IOCTL_NR(DRM_IOCTL_GET_MAP32)] = compat_drm_getmap,
41159@@ -1062,7 +1062,6 @@ drm_ioctl_compat_t *drm_compat_ioctls[] = {
41160 long drm_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
41161 {
41162 unsigned int nr = DRM_IOCTL_NR(cmd);
41163- drm_ioctl_compat_t *fn;
41164 int ret;
41165
41166 /* Assume that ioctls without an explicit compat routine will just
41167@@ -1072,10 +1071,8 @@ long drm_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
41168 if (nr >= ARRAY_SIZE(drm_compat_ioctls))
41169 return drm_ioctl(filp, cmd, arg);
41170
41171- fn = drm_compat_ioctls[nr];
41172-
41173- if (fn != NULL)
41174- ret = (*fn) (filp, cmd, arg);
41175+ if (drm_compat_ioctls[nr] != NULL)
41176+ ret = (*drm_compat_ioctls[nr]) (filp, cmd, arg);
41177 else
41178 ret = drm_ioctl(filp, cmd, arg);
41179
41180diff --git a/drivers/gpu/drm/drm_ioctl.c b/drivers/gpu/drm/drm_ioctl.c
41181index 3785d66..1c489ef 100644
41182--- a/drivers/gpu/drm/drm_ioctl.c
41183+++ b/drivers/gpu/drm/drm_ioctl.c
41184@@ -655,7 +655,7 @@ long drm_ioctl(struct file *filp,
41185 struct drm_file *file_priv = filp->private_data;
41186 struct drm_device *dev;
41187 const struct drm_ioctl_desc *ioctl = NULL;
41188- drm_ioctl_t *func;
41189+ drm_ioctl_no_const_t func;
41190 unsigned int nr = DRM_IOCTL_NR(cmd);
41191 int retcode = -EINVAL;
41192 char stack_kdata[128];
41193diff --git a/drivers/gpu/drm/drm_lock.c b/drivers/gpu/drm/drm_lock.c
41194index f861361..b61d4c7 100644
41195--- a/drivers/gpu/drm/drm_lock.c
41196+++ b/drivers/gpu/drm/drm_lock.c
41197@@ -61,9 +61,12 @@ int drm_legacy_lock(struct drm_device *dev, void *data,
41198 struct drm_master *master = file_priv->master;
41199 int ret = 0;
41200
41201+ if (!drm_core_check_feature(dev, DRIVER_KMS_LEGACY_CONTEXT))
41202+ return -EINVAL;
41203+
41204 ++file_priv->lock_count;
41205
41206- if (lock->context == DRM_KERNEL_CONTEXT) {
41207+ if (_DRM_LOCKING_CONTEXT(lock->context) == DRM_KERNEL_CONTEXT) {
41208 DRM_ERROR("Process %d using kernel context %d\n",
41209 task_pid_nr(current), lock->context);
41210 return -EINVAL;
41211@@ -153,12 +156,23 @@ int drm_legacy_unlock(struct drm_device *dev, void *data, struct drm_file *file_
41212 struct drm_lock *lock = data;
41213 struct drm_master *master = file_priv->master;
41214
41215- if (lock->context == DRM_KERNEL_CONTEXT) {
41216+ if (!drm_core_check_feature(dev, DRIVER_KMS_LEGACY_CONTEXT))
41217+ return -EINVAL;
41218+
41219+ if (_DRM_LOCKING_CONTEXT(lock->context) == DRM_KERNEL_CONTEXT) {
41220 DRM_ERROR("Process %d using kernel context %d\n",
41221 task_pid_nr(current), lock->context);
41222 return -EINVAL;
41223 }
41224
41225+ if (!master->lock.hw_lock) {
41226+ DRM_ERROR(
41227+ "Device has been unregistered. Hard exit. Process %d\n",
41228+ task_pid_nr(current));
41229+ send_sig(SIGTERM, current, 0);
41230+ return -EPERM;
41231+ }
41232+
41233 if (drm_legacy_lock_free(&master->lock, lock->context)) {
41234 /* FIXME: Should really bail out here. */
41235 }
41236diff --git a/drivers/gpu/drm/gma500/mdfld_dsi_dpi.c b/drivers/gpu/drm/gma500/mdfld_dsi_dpi.c
41237index d4813e0..6c1ab4d 100644
41238--- a/drivers/gpu/drm/gma500/mdfld_dsi_dpi.c
41239+++ b/drivers/gpu/drm/gma500/mdfld_dsi_dpi.c
41240@@ -825,10 +825,16 @@ void mdfld_dsi_dpi_mode_set(struct drm_encoder *encoder,
41241 u32 pipeconf_reg = PIPEACONF;
41242 u32 dspcntr_reg = DSPACNTR;
41243
41244- u32 pipeconf = dev_priv->pipeconf[pipe];
41245- u32 dspcntr = dev_priv->dspcntr[pipe];
41246+ u32 pipeconf;
41247+ u32 dspcntr;
41248 u32 mipi = MIPI_PORT_EN | PASS_FROM_SPHY_TO_AFE | SEL_FLOPPED_HSTX;
41249
41250+ if (pipe == -1)
41251+ return;
41252+
41253+ pipeconf = dev_priv->pipeconf[pipe];
41254+ dspcntr = dev_priv->dspcntr[pipe];
41255+
41256 if (pipe) {
41257 pipeconf_reg = PIPECCONF;
41258 dspcntr_reg = DSPCCNTR;
41259diff --git a/drivers/gpu/drm/i810/i810_drv.h b/drivers/gpu/drm/i810/i810_drv.h
41260index 93ec5dc..82acbaf 100644
41261--- a/drivers/gpu/drm/i810/i810_drv.h
41262+++ b/drivers/gpu/drm/i810/i810_drv.h
41263@@ -110,8 +110,8 @@ typedef struct drm_i810_private {
41264 int page_flipping;
41265
41266 wait_queue_head_t irq_queue;
41267- atomic_t irq_received;
41268- atomic_t irq_emitted;
41269+ atomic_unchecked_t irq_received;
41270+ atomic_unchecked_t irq_emitted;
41271
41272 int front_offset;
41273 } drm_i810_private_t;
41274diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
41275index 1a46787..7fb387c 100644
41276--- a/drivers/gpu/drm/i915/i915_dma.c
41277+++ b/drivers/gpu/drm/i915/i915_dma.c
41278@@ -149,6 +149,9 @@ static int i915_getparam(struct drm_device *dev, void *data,
41279 case I915_PARAM_MMAP_VERSION:
41280 value = 1;
41281 break;
41282+ case I915_PARAM_HAS_LEGACY_CONTEXT:
41283+ value = drm_core_check_feature(dev, DRIVER_KMS_LEGACY_CONTEXT);
41284+ break;
41285 default:
41286 DRM_DEBUG("Unknown parameter %d\n", param->param);
41287 return -EINVAL;
41288@@ -362,7 +365,7 @@ static bool i915_switcheroo_can_switch(struct pci_dev *pdev)
41289 * locking inversion with the driver load path. And the access here is
41290 * completely racy anyway. So don't bother with locking for now.
41291 */
41292- return dev->open_count == 0;
41293+ return local_read(&dev->open_count) == 0;
41294 }
41295
41296 static const struct vga_switcheroo_client_ops i915_switcheroo_ops = {
41297diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
41298index 38a7425..5322b16 100644
41299--- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c
41300+++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
41301@@ -872,12 +872,12 @@ i915_gem_check_execbuffer(struct drm_i915_gem_execbuffer2 *exec)
41302 static int
41303 validate_exec_list(struct drm_device *dev,
41304 struct drm_i915_gem_exec_object2 *exec,
41305- int count)
41306+ unsigned int count)
41307 {
41308 unsigned relocs_total = 0;
41309 unsigned relocs_max = UINT_MAX / sizeof(struct drm_i915_gem_relocation_entry);
41310 unsigned invalid_flags;
41311- int i;
41312+ unsigned int i;
41313
41314 invalid_flags = __EXEC_OBJECT_UNKNOWN_FLAGS;
41315 if (USES_FULL_PPGTT(dev))
41316diff --git a/drivers/gpu/drm/i915/i915_ioc32.c b/drivers/gpu/drm/i915/i915_ioc32.c
41317index 176de63..b50b66a 100644
41318--- a/drivers/gpu/drm/i915/i915_ioc32.c
41319+++ b/drivers/gpu/drm/i915/i915_ioc32.c
41320@@ -62,7 +62,7 @@ static int compat_i915_batchbuffer(struct file *file, unsigned int cmd,
41321 || __put_user(batchbuffer32.DR4, &batchbuffer->DR4)
41322 || __put_user(batchbuffer32.num_cliprects,
41323 &batchbuffer->num_cliprects)
41324- || __put_user((int __user *)(unsigned long)batchbuffer32.cliprects,
41325+ || __put_user((struct drm_clip_rect __user *)(unsigned long)batchbuffer32.cliprects,
41326 &batchbuffer->cliprects))
41327 return -EFAULT;
41328
41329@@ -91,13 +91,13 @@ static int compat_i915_cmdbuffer(struct file *file, unsigned int cmd,
41330
41331 cmdbuffer = compat_alloc_user_space(sizeof(*cmdbuffer));
41332 if (!access_ok(VERIFY_WRITE, cmdbuffer, sizeof(*cmdbuffer))
41333- || __put_user((int __user *)(unsigned long)cmdbuffer32.buf,
41334+ || __put_user((char __user *)(unsigned long)cmdbuffer32.buf,
41335 &cmdbuffer->buf)
41336 || __put_user(cmdbuffer32.sz, &cmdbuffer->sz)
41337 || __put_user(cmdbuffer32.DR1, &cmdbuffer->DR1)
41338 || __put_user(cmdbuffer32.DR4, &cmdbuffer->DR4)
41339 || __put_user(cmdbuffer32.num_cliprects, &cmdbuffer->num_cliprects)
41340- || __put_user((int __user *)(unsigned long)cmdbuffer32.cliprects,
41341+ || __put_user((struct drm_clip_rect __user *)(unsigned long)cmdbuffer32.cliprects,
41342 &cmdbuffer->cliprects))
41343 return -EFAULT;
41344
41345@@ -181,7 +181,7 @@ static int compat_i915_alloc(struct file *file, unsigned int cmd,
41346 (unsigned long)request);
41347 }
41348
41349-static drm_ioctl_compat_t *i915_compat_ioctls[] = {
41350+static drm_ioctl_compat_t i915_compat_ioctls[] = {
41351 [DRM_I915_BATCHBUFFER] = compat_i915_batchbuffer,
41352 [DRM_I915_CMDBUFFER] = compat_i915_cmdbuffer,
41353 [DRM_I915_GETPARAM] = compat_i915_getparam,
41354@@ -201,17 +201,13 @@ static drm_ioctl_compat_t *i915_compat_ioctls[] = {
41355 long i915_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
41356 {
41357 unsigned int nr = DRM_IOCTL_NR(cmd);
41358- drm_ioctl_compat_t *fn = NULL;
41359 int ret;
41360
41361 if (nr < DRM_COMMAND_BASE)
41362 return drm_compat_ioctl(filp, cmd, arg);
41363
41364- if (nr < DRM_COMMAND_BASE + ARRAY_SIZE(i915_compat_ioctls))
41365- fn = i915_compat_ioctls[nr - DRM_COMMAND_BASE];
41366-
41367- if (fn != NULL)
41368- ret = (*fn) (filp, cmd, arg);
41369+ if (nr < DRM_COMMAND_BASE + ARRAY_SIZE(i915_compat_ioctls) && i915_compat_ioctls[nr - DRM_COMMAND_BASE])
41370+ ret = (*i915_compat_ioctls[nr - DRM_COMMAND_BASE])(filp, cmd, arg);
41371 else
41372 ret = drm_ioctl(filp, cmd, arg);
41373
41374diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
41375index f75173c..f283e45 100644
41376--- a/drivers/gpu/drm/i915/intel_display.c
41377+++ b/drivers/gpu/drm/i915/intel_display.c
41378@@ -13056,13 +13056,13 @@ struct intel_quirk {
41379 int subsystem_vendor;
41380 int subsystem_device;
41381 void (*hook)(struct drm_device *dev);
41382-};
41383+} __do_const;
41384
41385 /* For systems that don't have a meaningful PCI subdevice/subvendor ID */
41386 struct intel_dmi_quirk {
41387 void (*hook)(struct drm_device *dev);
41388 const struct dmi_system_id (*dmi_id_list)[];
41389-};
41390+} __do_const;
41391
41392 static int intel_dmi_reverse_brightness(const struct dmi_system_id *id)
41393 {
41394@@ -13070,18 +13070,20 @@ static int intel_dmi_reverse_brightness(const struct dmi_system_id *id)
41395 return 1;
41396 }
41397
41398-static const struct intel_dmi_quirk intel_dmi_quirks[] = {
41399+static const struct dmi_system_id intel_dmi_quirks_table[] = {
41400 {
41401- .dmi_id_list = &(const struct dmi_system_id[]) {
41402- {
41403- .callback = intel_dmi_reverse_brightness,
41404- .ident = "NCR Corporation",
41405- .matches = {DMI_MATCH(DMI_SYS_VENDOR, "NCR Corporation"),
41406- DMI_MATCH(DMI_PRODUCT_NAME, ""),
41407- },
41408- },
41409- { } /* terminating entry */
41410+ .callback = intel_dmi_reverse_brightness,
41411+ .ident = "NCR Corporation",
41412+ .matches = {DMI_MATCH(DMI_SYS_VENDOR, "NCR Corporation"),
41413+ DMI_MATCH(DMI_PRODUCT_NAME, ""),
41414 },
41415+ },
41416+ { } /* terminating entry */
41417+};
41418+
41419+static const struct intel_dmi_quirk intel_dmi_quirks[] = {
41420+ {
41421+ .dmi_id_list = &intel_dmi_quirks_table,
41422 .hook = quirk_invert_brightness,
41423 },
41424 };
41425diff --git a/drivers/gpu/drm/imx/imx-drm-core.c b/drivers/gpu/drm/imx/imx-drm-core.c
41426index a002f53..0d60514 100644
41427--- a/drivers/gpu/drm/imx/imx-drm-core.c
41428+++ b/drivers/gpu/drm/imx/imx-drm-core.c
41429@@ -355,7 +355,7 @@ int imx_drm_add_crtc(struct drm_device *drm, struct drm_crtc *crtc,
41430 if (imxdrm->pipes >= MAX_CRTC)
41431 return -EINVAL;
41432
41433- if (imxdrm->drm->open_count)
41434+ if (local_read(&imxdrm->drm->open_count))
41435 return -EBUSY;
41436
41437 imx_drm_crtc = kzalloc(sizeof(*imx_drm_crtc), GFP_KERNEL);
41438diff --git a/drivers/gpu/drm/mga/mga_drv.h b/drivers/gpu/drm/mga/mga_drv.h
41439index b4a20149..219ab78 100644
41440--- a/drivers/gpu/drm/mga/mga_drv.h
41441+++ b/drivers/gpu/drm/mga/mga_drv.h
41442@@ -122,9 +122,9 @@ typedef struct drm_mga_private {
41443 u32 clear_cmd;
41444 u32 maccess;
41445
41446- atomic_t vbl_received; /**< Number of vblanks received. */
41447+ atomic_unchecked_t vbl_received; /**< Number of vblanks received. */
41448 wait_queue_head_t fence_queue;
41449- atomic_t last_fence_retired;
41450+ atomic_unchecked_t last_fence_retired;
41451 u32 next_fence_to_post;
41452
41453 unsigned int fb_cpp;
41454diff --git a/drivers/gpu/drm/mga/mga_ioc32.c b/drivers/gpu/drm/mga/mga_ioc32.c
41455index 729bfd5..14bae78 100644
41456--- a/drivers/gpu/drm/mga/mga_ioc32.c
41457+++ b/drivers/gpu/drm/mga/mga_ioc32.c
41458@@ -190,7 +190,7 @@ static int compat_mga_dma_bootstrap(struct file *file, unsigned int cmd,
41459 return 0;
41460 }
41461
41462-drm_ioctl_compat_t *mga_compat_ioctls[] = {
41463+drm_ioctl_compat_t mga_compat_ioctls[] = {
41464 [DRM_MGA_INIT] = compat_mga_init,
41465 [DRM_MGA_GETPARAM] = compat_mga_getparam,
41466 [DRM_MGA_DMA_BOOTSTRAP] = compat_mga_dma_bootstrap,
41467@@ -208,17 +208,13 @@ drm_ioctl_compat_t *mga_compat_ioctls[] = {
41468 long mga_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
41469 {
41470 unsigned int nr = DRM_IOCTL_NR(cmd);
41471- drm_ioctl_compat_t *fn = NULL;
41472 int ret;
41473
41474 if (nr < DRM_COMMAND_BASE)
41475 return drm_compat_ioctl(filp, cmd, arg);
41476
41477- if (nr < DRM_COMMAND_BASE + ARRAY_SIZE(mga_compat_ioctls))
41478- fn = mga_compat_ioctls[nr - DRM_COMMAND_BASE];
41479-
41480- if (fn != NULL)
41481- ret = (*fn) (filp, cmd, arg);
41482+ if (nr < DRM_COMMAND_BASE + ARRAY_SIZE(mga_compat_ioctls) && mga_compat_ioctls[nr - DRM_COMMAND_BASE])
41483+ ret = (*mga_compat_ioctls[nr - DRM_COMMAND_BASE]) (filp, cmd, arg);
41484 else
41485 ret = drm_ioctl(filp, cmd, arg);
41486
41487diff --git a/drivers/gpu/drm/mga/mga_irq.c b/drivers/gpu/drm/mga/mga_irq.c
41488index 1b071b8..de8601a 100644
41489--- a/drivers/gpu/drm/mga/mga_irq.c
41490+++ b/drivers/gpu/drm/mga/mga_irq.c
41491@@ -43,7 +43,7 @@ u32 mga_get_vblank_counter(struct drm_device *dev, int crtc)
41492 if (crtc != 0)
41493 return 0;
41494
41495- return atomic_read(&dev_priv->vbl_received);
41496+ return atomic_read_unchecked(&dev_priv->vbl_received);
41497 }
41498
41499
41500@@ -59,7 +59,7 @@ irqreturn_t mga_driver_irq_handler(int irq, void *arg)
41501 /* VBLANK interrupt */
41502 if (status & MGA_VLINEPEN) {
41503 MGA_WRITE(MGA_ICLEAR, MGA_VLINEICLR);
41504- atomic_inc(&dev_priv->vbl_received);
41505+ atomic_inc_unchecked(&dev_priv->vbl_received);
41506 drm_handle_vblank(dev, 0);
41507 handled = 1;
41508 }
41509@@ -78,7 +78,7 @@ irqreturn_t mga_driver_irq_handler(int irq, void *arg)
41510 if ((prim_start & ~0x03) != (prim_end & ~0x03))
41511 MGA_WRITE(MGA_PRIMEND, prim_end);
41512
41513- atomic_inc(&dev_priv->last_fence_retired);
41514+ atomic_inc_unchecked(&dev_priv->last_fence_retired);
41515 wake_up(&dev_priv->fence_queue);
41516 handled = 1;
41517 }
41518@@ -129,7 +129,7 @@ int mga_driver_fence_wait(struct drm_device *dev, unsigned int *sequence)
41519 * using fences.
41520 */
41521 DRM_WAIT_ON(ret, dev_priv->fence_queue, 3 * HZ,
41522- (((cur_fence = atomic_read(&dev_priv->last_fence_retired))
41523+ (((cur_fence = atomic_read_unchecked(&dev_priv->last_fence_retired))
41524 - *sequence) <= (1 << 23)));
41525
41526 *sequence = cur_fence;
41527diff --git a/drivers/gpu/drm/nouveau/nouveau_bios.c b/drivers/gpu/drm/nouveau/nouveau_bios.c
41528index 0190b69..60c3eaf 100644
41529--- a/drivers/gpu/drm/nouveau/nouveau_bios.c
41530+++ b/drivers/gpu/drm/nouveau/nouveau_bios.c
41531@@ -963,7 +963,7 @@ static int parse_bit_tmds_tbl_entry(struct drm_device *dev, struct nvbios *bios,
41532 struct bit_table {
41533 const char id;
41534 int (* const parse_fn)(struct drm_device *, struct nvbios *, struct bit_entry *);
41535-};
41536+} __no_const;
41537
41538 #define BIT_TABLE(id, funcid) ((struct bit_table){ id, parse_bit_##funcid##_tbl_entry })
41539
41540diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.c b/drivers/gpu/drm/nouveau/nouveau_drm.c
41541index 8763deb..936b423 100644
41542--- a/drivers/gpu/drm/nouveau/nouveau_drm.c
41543+++ b/drivers/gpu/drm/nouveau/nouveau_drm.c
41544@@ -940,7 +940,8 @@ static struct drm_driver
41545 driver_stub = {
41546 .driver_features =
41547 DRIVER_USE_AGP |
41548- DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | DRIVER_RENDER,
41549+ DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | DRIVER_RENDER |
41550+ DRIVER_KMS_LEGACY_CONTEXT,
41551
41552 .load = nouveau_drm_load,
41553 .unload = nouveau_drm_unload,
41554diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.h b/drivers/gpu/drm/nouveau/nouveau_drm.h
41555index fc68f09..0511d71 100644
41556--- a/drivers/gpu/drm/nouveau/nouveau_drm.h
41557+++ b/drivers/gpu/drm/nouveau/nouveau_drm.h
41558@@ -121,7 +121,6 @@ struct nouveau_drm {
41559 struct drm_global_reference mem_global_ref;
41560 struct ttm_bo_global_ref bo_global_ref;
41561 struct ttm_bo_device bdev;
41562- atomic_t validate_sequence;
41563 int (*move)(struct nouveau_channel *,
41564 struct ttm_buffer_object *,
41565 struct ttm_mem_reg *, struct ttm_mem_reg *);
41566diff --git a/drivers/gpu/drm/nouveau/nouveau_ioc32.c b/drivers/gpu/drm/nouveau/nouveau_ioc32.c
41567index 462679a..88e32a7 100644
41568--- a/drivers/gpu/drm/nouveau/nouveau_ioc32.c
41569+++ b/drivers/gpu/drm/nouveau/nouveau_ioc32.c
41570@@ -50,7 +50,7 @@ long nouveau_compat_ioctl(struct file *filp, unsigned int cmd,
41571 unsigned long arg)
41572 {
41573 unsigned int nr = DRM_IOCTL_NR(cmd);
41574- drm_ioctl_compat_t *fn = NULL;
41575+ drm_ioctl_compat_t fn = NULL;
41576 int ret;
41577
41578 if (nr < DRM_COMMAND_BASE)
41579diff --git a/drivers/gpu/drm/nouveau/nouveau_ttm.c b/drivers/gpu/drm/nouveau/nouveau_ttm.c
41580index 273e501..3b6c0a2 100644
41581--- a/drivers/gpu/drm/nouveau/nouveau_ttm.c
41582+++ b/drivers/gpu/drm/nouveau/nouveau_ttm.c
41583@@ -127,11 +127,11 @@ nouveau_vram_manager_debug(struct ttm_mem_type_manager *man, const char *prefix)
41584 }
41585
41586 const struct ttm_mem_type_manager_func nouveau_vram_manager = {
41587- nouveau_vram_manager_init,
41588- nouveau_vram_manager_fini,
41589- nouveau_vram_manager_new,
41590- nouveau_vram_manager_del,
41591- nouveau_vram_manager_debug
41592+ .init = nouveau_vram_manager_init,
41593+ .takedown = nouveau_vram_manager_fini,
41594+ .get_node = nouveau_vram_manager_new,
41595+ .put_node = nouveau_vram_manager_del,
41596+ .debug = nouveau_vram_manager_debug
41597 };
41598
41599 static int
41600@@ -195,11 +195,11 @@ nouveau_gart_manager_debug(struct ttm_mem_type_manager *man, const char *prefix)
41601 }
41602
41603 const struct ttm_mem_type_manager_func nouveau_gart_manager = {
41604- nouveau_gart_manager_init,
41605- nouveau_gart_manager_fini,
41606- nouveau_gart_manager_new,
41607- nouveau_gart_manager_del,
41608- nouveau_gart_manager_debug
41609+ .init = nouveau_gart_manager_init,
41610+ .takedown = nouveau_gart_manager_fini,
41611+ .get_node = nouveau_gart_manager_new,
41612+ .put_node = nouveau_gart_manager_del,
41613+ .debug = nouveau_gart_manager_debug
41614 };
41615
41616 /*XXX*/
41617@@ -268,11 +268,11 @@ nv04_gart_manager_debug(struct ttm_mem_type_manager *man, const char *prefix)
41618 }
41619
41620 const struct ttm_mem_type_manager_func nv04_gart_manager = {
41621- nv04_gart_manager_init,
41622- nv04_gart_manager_fini,
41623- nv04_gart_manager_new,
41624- nv04_gart_manager_del,
41625- nv04_gart_manager_debug
41626+ .init = nv04_gart_manager_init,
41627+ .takedown = nv04_gart_manager_fini,
41628+ .get_node = nv04_gart_manager_new,
41629+ .put_node = nv04_gart_manager_del,
41630+ .debug = nv04_gart_manager_debug
41631 };
41632
41633 int
41634diff --git a/drivers/gpu/drm/nouveau/nouveau_vga.c b/drivers/gpu/drm/nouveau/nouveau_vga.c
41635index c7592ec..dd45ebc 100644
41636--- a/drivers/gpu/drm/nouveau/nouveau_vga.c
41637+++ b/drivers/gpu/drm/nouveau/nouveau_vga.c
41638@@ -72,7 +72,7 @@ nouveau_switcheroo_can_switch(struct pci_dev *pdev)
41639 * locking inversion with the driver load path. And the access here is
41640 * completely racy anyway. So don't bother with locking for now.
41641 */
41642- return dev->open_count == 0;
41643+ return local_read(&dev->open_count) == 0;
41644 }
41645
41646 static const struct vga_switcheroo_client_ops
41647diff --git a/drivers/gpu/drm/qxl/qxl_cmd.c b/drivers/gpu/drm/qxl/qxl_cmd.c
41648index 9782364..89bd954 100644
41649--- a/drivers/gpu/drm/qxl/qxl_cmd.c
41650+++ b/drivers/gpu/drm/qxl/qxl_cmd.c
41651@@ -285,27 +285,27 @@ static int wait_for_io_cmd_user(struct qxl_device *qdev, uint8_t val, long port,
41652 int ret;
41653
41654 mutex_lock(&qdev->async_io_mutex);
41655- irq_num = atomic_read(&qdev->irq_received_io_cmd);
41656+ irq_num = atomic_read_unchecked(&qdev->irq_received_io_cmd);
41657 if (qdev->last_sent_io_cmd > irq_num) {
41658 if (intr)
41659 ret = wait_event_interruptible_timeout(qdev->io_cmd_event,
41660- atomic_read(&qdev->irq_received_io_cmd) > irq_num, 5*HZ);
41661+ atomic_read_unchecked(&qdev->irq_received_io_cmd) > irq_num, 5*HZ);
41662 else
41663 ret = wait_event_timeout(qdev->io_cmd_event,
41664- atomic_read(&qdev->irq_received_io_cmd) > irq_num, 5*HZ);
41665+ atomic_read_unchecked(&qdev->irq_received_io_cmd) > irq_num, 5*HZ);
41666 /* 0 is timeout, just bail the "hw" has gone away */
41667 if (ret <= 0)
41668 goto out;
41669- irq_num = atomic_read(&qdev->irq_received_io_cmd);
41670+ irq_num = atomic_read_unchecked(&qdev->irq_received_io_cmd);
41671 }
41672 outb(val, addr);
41673 qdev->last_sent_io_cmd = irq_num + 1;
41674 if (intr)
41675 ret = wait_event_interruptible_timeout(qdev->io_cmd_event,
41676- atomic_read(&qdev->irq_received_io_cmd) > irq_num, 5*HZ);
41677+ atomic_read_unchecked(&qdev->irq_received_io_cmd) > irq_num, 5*HZ);
41678 else
41679 ret = wait_event_timeout(qdev->io_cmd_event,
41680- atomic_read(&qdev->irq_received_io_cmd) > irq_num, 5*HZ);
41681+ atomic_read_unchecked(&qdev->irq_received_io_cmd) > irq_num, 5*HZ);
41682 out:
41683 if (ret > 0)
41684 ret = 0;
41685diff --git a/drivers/gpu/drm/qxl/qxl_debugfs.c b/drivers/gpu/drm/qxl/qxl_debugfs.c
41686index 6911b8c..89d6867 100644
41687--- a/drivers/gpu/drm/qxl/qxl_debugfs.c
41688+++ b/drivers/gpu/drm/qxl/qxl_debugfs.c
41689@@ -42,10 +42,10 @@ qxl_debugfs_irq_received(struct seq_file *m, void *data)
41690 struct drm_info_node *node = (struct drm_info_node *) m->private;
41691 struct qxl_device *qdev = node->minor->dev->dev_private;
41692
41693- seq_printf(m, "%d\n", atomic_read(&qdev->irq_received));
41694- seq_printf(m, "%d\n", atomic_read(&qdev->irq_received_display));
41695- seq_printf(m, "%d\n", atomic_read(&qdev->irq_received_cursor));
41696- seq_printf(m, "%d\n", atomic_read(&qdev->irq_received_io_cmd));
41697+ seq_printf(m, "%d\n", atomic_read_unchecked(&qdev->irq_received));
41698+ seq_printf(m, "%d\n", atomic_read_unchecked(&qdev->irq_received_display));
41699+ seq_printf(m, "%d\n", atomic_read_unchecked(&qdev->irq_received_cursor));
41700+ seq_printf(m, "%d\n", atomic_read_unchecked(&qdev->irq_received_io_cmd));
41701 seq_printf(m, "%d\n", qdev->irq_received_error);
41702 return 0;
41703 }
41704diff --git a/drivers/gpu/drm/qxl/qxl_drv.h b/drivers/gpu/drm/qxl/qxl_drv.h
41705index 7c6cafe..460f542 100644
41706--- a/drivers/gpu/drm/qxl/qxl_drv.h
41707+++ b/drivers/gpu/drm/qxl/qxl_drv.h
41708@@ -290,10 +290,10 @@ struct qxl_device {
41709 unsigned int last_sent_io_cmd;
41710
41711 /* interrupt handling */
41712- atomic_t irq_received;
41713- atomic_t irq_received_display;
41714- atomic_t irq_received_cursor;
41715- atomic_t irq_received_io_cmd;
41716+ atomic_unchecked_t irq_received;
41717+ atomic_unchecked_t irq_received_display;
41718+ atomic_unchecked_t irq_received_cursor;
41719+ atomic_unchecked_t irq_received_io_cmd;
41720 unsigned irq_received_error;
41721 wait_queue_head_t display_event;
41722 wait_queue_head_t cursor_event;
41723diff --git a/drivers/gpu/drm/qxl/qxl_ioctl.c b/drivers/gpu/drm/qxl/qxl_ioctl.c
41724index b110883..dd06418 100644
41725--- a/drivers/gpu/drm/qxl/qxl_ioctl.c
41726+++ b/drivers/gpu/drm/qxl/qxl_ioctl.c
41727@@ -181,7 +181,7 @@ static int qxl_process_single_command(struct qxl_device *qdev,
41728
41729 /* TODO copy slow path code from i915 */
41730 fb_cmd = qxl_bo_kmap_atomic_page(qdev, cmd_bo, (release->release_offset & PAGE_SIZE));
41731- unwritten = __copy_from_user_inatomic_nocache(fb_cmd + sizeof(union qxl_release_info) + (release->release_offset & ~PAGE_SIZE), (void *)(unsigned long)cmd->command, cmd->command_size);
41732+ unwritten = __copy_from_user_inatomic_nocache(fb_cmd + sizeof(union qxl_release_info) + (release->release_offset & ~PAGE_SIZE), (void __force_user *)(unsigned long)cmd->command, cmd->command_size);
41733
41734 {
41735 struct qxl_drawable *draw = fb_cmd;
41736@@ -201,7 +201,7 @@ static int qxl_process_single_command(struct qxl_device *qdev,
41737 struct drm_qxl_reloc reloc;
41738
41739 if (copy_from_user(&reloc,
41740- &((struct drm_qxl_reloc *)(uintptr_t)cmd->relocs)[i],
41741+ &((struct drm_qxl_reloc __force_user *)(uintptr_t)cmd->relocs)[i],
41742 sizeof(reloc))) {
41743 ret = -EFAULT;
41744 goto out_free_bos;
41745@@ -294,10 +294,10 @@ static int qxl_execbuffer_ioctl(struct drm_device *dev, void *data,
41746
41747 for (cmd_num = 0; cmd_num < execbuffer->commands_num; ++cmd_num) {
41748
41749- struct drm_qxl_command *commands =
41750- (struct drm_qxl_command *)(uintptr_t)execbuffer->commands;
41751+ struct drm_qxl_command __user *commands =
41752+ (struct drm_qxl_command __user *)(uintptr_t)execbuffer->commands;
41753
41754- if (copy_from_user(&user_cmd, &commands[cmd_num],
41755+ if (copy_from_user(&user_cmd, (struct drm_qxl_command __force_user *)&commands[cmd_num],
41756 sizeof(user_cmd)))
41757 return -EFAULT;
41758
41759diff --git a/drivers/gpu/drm/qxl/qxl_irq.c b/drivers/gpu/drm/qxl/qxl_irq.c
41760index 0bf1e20..42a7310 100644
41761--- a/drivers/gpu/drm/qxl/qxl_irq.c
41762+++ b/drivers/gpu/drm/qxl/qxl_irq.c
41763@@ -36,19 +36,19 @@ irqreturn_t qxl_irq_handler(int irq, void *arg)
41764 if (!pending)
41765 return IRQ_NONE;
41766
41767- atomic_inc(&qdev->irq_received);
41768+ atomic_inc_unchecked(&qdev->irq_received);
41769
41770 if (pending & QXL_INTERRUPT_DISPLAY) {
41771- atomic_inc(&qdev->irq_received_display);
41772+ atomic_inc_unchecked(&qdev->irq_received_display);
41773 wake_up_all(&qdev->display_event);
41774 qxl_queue_garbage_collect(qdev, false);
41775 }
41776 if (pending & QXL_INTERRUPT_CURSOR) {
41777- atomic_inc(&qdev->irq_received_cursor);
41778+ atomic_inc_unchecked(&qdev->irq_received_cursor);
41779 wake_up_all(&qdev->cursor_event);
41780 }
41781 if (pending & QXL_INTERRUPT_IO_CMD) {
41782- atomic_inc(&qdev->irq_received_io_cmd);
41783+ atomic_inc_unchecked(&qdev->irq_received_io_cmd);
41784 wake_up_all(&qdev->io_cmd_event);
41785 }
41786 if (pending & QXL_INTERRUPT_ERROR) {
41787@@ -85,10 +85,10 @@ int qxl_irq_init(struct qxl_device *qdev)
41788 init_waitqueue_head(&qdev->io_cmd_event);
41789 INIT_WORK(&qdev->client_monitors_config_work,
41790 qxl_client_monitors_config_work_func);
41791- atomic_set(&qdev->irq_received, 0);
41792- atomic_set(&qdev->irq_received_display, 0);
41793- atomic_set(&qdev->irq_received_cursor, 0);
41794- atomic_set(&qdev->irq_received_io_cmd, 0);
41795+ atomic_set_unchecked(&qdev->irq_received, 0);
41796+ atomic_set_unchecked(&qdev->irq_received_display, 0);
41797+ atomic_set_unchecked(&qdev->irq_received_cursor, 0);
41798+ atomic_set_unchecked(&qdev->irq_received_io_cmd, 0);
41799 qdev->irq_received_error = 0;
41800 ret = drm_irq_install(qdev->ddev, qdev->ddev->pdev->irq);
41801 qdev->ram_header->int_mask = QXL_INTERRUPT_MASK;
41802diff --git a/drivers/gpu/drm/qxl/qxl_ttm.c b/drivers/gpu/drm/qxl/qxl_ttm.c
41803index 0cbc4c9..0e46686 100644
41804--- a/drivers/gpu/drm/qxl/qxl_ttm.c
41805+++ b/drivers/gpu/drm/qxl/qxl_ttm.c
41806@@ -103,7 +103,7 @@ static void qxl_ttm_global_fini(struct qxl_device *qdev)
41807 }
41808 }
41809
41810-static struct vm_operations_struct qxl_ttm_vm_ops;
41811+static vm_operations_struct_no_const qxl_ttm_vm_ops __read_only;
41812 static const struct vm_operations_struct *ttm_vm_ops;
41813
41814 static int qxl_ttm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
41815@@ -145,8 +145,10 @@ int qxl_mmap(struct file *filp, struct vm_area_struct *vma)
41816 return r;
41817 if (unlikely(ttm_vm_ops == NULL)) {
41818 ttm_vm_ops = vma->vm_ops;
41819+ pax_open_kernel();
41820 qxl_ttm_vm_ops = *ttm_vm_ops;
41821 qxl_ttm_vm_ops.fault = &qxl_ttm_fault;
41822+ pax_close_kernel();
41823 }
41824 vma->vm_ops = &qxl_ttm_vm_ops;
41825 return 0;
41826@@ -464,25 +466,23 @@ static int qxl_mm_dump_table(struct seq_file *m, void *data)
41827 static int qxl_ttm_debugfs_init(struct qxl_device *qdev)
41828 {
41829 #if defined(CONFIG_DEBUG_FS)
41830- static struct drm_info_list qxl_mem_types_list[QXL_DEBUGFS_MEM_TYPES];
41831- static char qxl_mem_types_names[QXL_DEBUGFS_MEM_TYPES][32];
41832- unsigned i;
41833+ static struct drm_info_list qxl_mem_types_list[QXL_DEBUGFS_MEM_TYPES] = {
41834+ {
41835+ .name = "qxl_mem_mm",
41836+ .show = &qxl_mm_dump_table,
41837+ },
41838+ {
41839+ .name = "qxl_surf_mm",
41840+ .show = &qxl_mm_dump_table,
41841+ }
41842+ };
41843
41844- for (i = 0; i < QXL_DEBUGFS_MEM_TYPES; i++) {
41845- if (i == 0)
41846- sprintf(qxl_mem_types_names[i], "qxl_mem_mm");
41847- else
41848- sprintf(qxl_mem_types_names[i], "qxl_surf_mm");
41849- qxl_mem_types_list[i].name = qxl_mem_types_names[i];
41850- qxl_mem_types_list[i].show = &qxl_mm_dump_table;
41851- qxl_mem_types_list[i].driver_features = 0;
41852- if (i == 0)
41853- qxl_mem_types_list[i].data = qdev->mman.bdev.man[TTM_PL_VRAM].priv;
41854- else
41855- qxl_mem_types_list[i].data = qdev->mman.bdev.man[TTM_PL_PRIV0].priv;
41856+ pax_open_kernel();
41857+ *(void **)&qxl_mem_types_list[0].data = qdev->mman.bdev.man[TTM_PL_VRAM].priv;
41858+ *(void **)&qxl_mem_types_list[1].data = qdev->mman.bdev.man[TTM_PL_PRIV0].priv;
41859+ pax_close_kernel();
41860
41861- }
41862- return qxl_debugfs_add_files(qdev, qxl_mem_types_list, i);
41863+ return qxl_debugfs_add_files(qdev, qxl_mem_types_list, QXL_DEBUGFS_MEM_TYPES);
41864 #else
41865 return 0;
41866 #endif
41867diff --git a/drivers/gpu/drm/r128/r128_cce.c b/drivers/gpu/drm/r128/r128_cce.c
41868index 2c45ac9..5d740f8 100644
41869--- a/drivers/gpu/drm/r128/r128_cce.c
41870+++ b/drivers/gpu/drm/r128/r128_cce.c
41871@@ -377,7 +377,7 @@ static int r128_do_init_cce(struct drm_device *dev, drm_r128_init_t *init)
41872
41873 /* GH: Simple idle check.
41874 */
41875- atomic_set(&dev_priv->idle_count, 0);
41876+ atomic_set_unchecked(&dev_priv->idle_count, 0);
41877
41878 /* We don't support anything other than bus-mastering ring mode,
41879 * but the ring can be in either AGP or PCI space for the ring
41880diff --git a/drivers/gpu/drm/r128/r128_drv.h b/drivers/gpu/drm/r128/r128_drv.h
41881index 723e5d6..102dbaf 100644
41882--- a/drivers/gpu/drm/r128/r128_drv.h
41883+++ b/drivers/gpu/drm/r128/r128_drv.h
41884@@ -93,14 +93,14 @@ typedef struct drm_r128_private {
41885 int is_pci;
41886 unsigned long cce_buffers_offset;
41887
41888- atomic_t idle_count;
41889+ atomic_unchecked_t idle_count;
41890
41891 int page_flipping;
41892 int current_page;
41893 u32 crtc_offset;
41894 u32 crtc_offset_cntl;
41895
41896- atomic_t vbl_received;
41897+ atomic_unchecked_t vbl_received;
41898
41899 u32 color_fmt;
41900 unsigned int front_offset;
41901diff --git a/drivers/gpu/drm/r128/r128_ioc32.c b/drivers/gpu/drm/r128/r128_ioc32.c
41902index 663f38c..ec159a1 100644
41903--- a/drivers/gpu/drm/r128/r128_ioc32.c
41904+++ b/drivers/gpu/drm/r128/r128_ioc32.c
41905@@ -178,7 +178,7 @@ static int compat_r128_getparam(struct file *file, unsigned int cmd,
41906 return drm_ioctl(file, DRM_IOCTL_R128_GETPARAM, (unsigned long)getparam);
41907 }
41908
41909-drm_ioctl_compat_t *r128_compat_ioctls[] = {
41910+drm_ioctl_compat_t r128_compat_ioctls[] = {
41911 [DRM_R128_INIT] = compat_r128_init,
41912 [DRM_R128_DEPTH] = compat_r128_depth,
41913 [DRM_R128_STIPPLE] = compat_r128_stipple,
41914@@ -197,17 +197,13 @@ drm_ioctl_compat_t *r128_compat_ioctls[] = {
41915 long r128_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
41916 {
41917 unsigned int nr = DRM_IOCTL_NR(cmd);
41918- drm_ioctl_compat_t *fn = NULL;
41919 int ret;
41920
41921 if (nr < DRM_COMMAND_BASE)
41922 return drm_compat_ioctl(filp, cmd, arg);
41923
41924- if (nr < DRM_COMMAND_BASE + ARRAY_SIZE(r128_compat_ioctls))
41925- fn = r128_compat_ioctls[nr - DRM_COMMAND_BASE];
41926-
41927- if (fn != NULL)
41928- ret = (*fn) (filp, cmd, arg);
41929+ if (nr < DRM_COMMAND_BASE + ARRAY_SIZE(r128_compat_ioctls) && r128_compat_ioctls[nr - DRM_COMMAND_BASE])
41930+ ret = (*r128_compat_ioctls[nr - DRM_COMMAND_BASE]) (filp, cmd, arg);
41931 else
41932 ret = drm_ioctl(filp, cmd, arg);
41933
41934diff --git a/drivers/gpu/drm/r128/r128_irq.c b/drivers/gpu/drm/r128/r128_irq.c
41935index c2ae496..30b5993 100644
41936--- a/drivers/gpu/drm/r128/r128_irq.c
41937+++ b/drivers/gpu/drm/r128/r128_irq.c
41938@@ -41,7 +41,7 @@ u32 r128_get_vblank_counter(struct drm_device *dev, int crtc)
41939 if (crtc != 0)
41940 return 0;
41941
41942- return atomic_read(&dev_priv->vbl_received);
41943+ return atomic_read_unchecked(&dev_priv->vbl_received);
41944 }
41945
41946 irqreturn_t r128_driver_irq_handler(int irq, void *arg)
41947@@ -55,7 +55,7 @@ irqreturn_t r128_driver_irq_handler(int irq, void *arg)
41948 /* VBLANK interrupt */
41949 if (status & R128_CRTC_VBLANK_INT) {
41950 R128_WRITE(R128_GEN_INT_STATUS, R128_CRTC_VBLANK_INT_AK);
41951- atomic_inc(&dev_priv->vbl_received);
41952+ atomic_inc_unchecked(&dev_priv->vbl_received);
41953 drm_handle_vblank(dev, 0);
41954 return IRQ_HANDLED;
41955 }
41956diff --git a/drivers/gpu/drm/r128/r128_state.c b/drivers/gpu/drm/r128/r128_state.c
41957index 8fd2d9f..18c9660 100644
41958--- a/drivers/gpu/drm/r128/r128_state.c
41959+++ b/drivers/gpu/drm/r128/r128_state.c
41960@@ -320,10 +320,10 @@ static void r128_clear_box(drm_r128_private_t *dev_priv,
41961
41962 static void r128_cce_performance_boxes(drm_r128_private_t *dev_priv)
41963 {
41964- if (atomic_read(&dev_priv->idle_count) == 0)
41965+ if (atomic_read_unchecked(&dev_priv->idle_count) == 0)
41966 r128_clear_box(dev_priv, 64, 4, 8, 8, 0, 255, 0);
41967 else
41968- atomic_set(&dev_priv->idle_count, 0);
41969+ atomic_set_unchecked(&dev_priv->idle_count, 0);
41970 }
41971
41972 #endif
41973diff --git a/drivers/gpu/drm/radeon/mkregtable.c b/drivers/gpu/drm/radeon/mkregtable.c
41974index b928c17..e5d9400 100644
41975--- a/drivers/gpu/drm/radeon/mkregtable.c
41976+++ b/drivers/gpu/drm/radeon/mkregtable.c
41977@@ -624,14 +624,14 @@ static int parser_auth(struct table *t, const char *filename)
41978 regex_t mask_rex;
41979 regmatch_t match[4];
41980 char buf[1024];
41981- size_t end;
41982+ long end;
41983 int len;
41984 int done = 0;
41985 int r;
41986 unsigned o;
41987 struct offset *offset;
41988 char last_reg_s[10];
41989- int last_reg;
41990+ unsigned long last_reg;
41991
41992 if (regcomp
41993 (&mask_rex, "(0x[0-9a-fA-F]*) *([_a-zA-Z0-9]*)", REG_EXTENDED)) {
41994diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c
41995index aa232fd..7e5f6e1 100644
41996--- a/drivers/gpu/drm/radeon/radeon_device.c
41997+++ b/drivers/gpu/drm/radeon/radeon_device.c
41998@@ -1247,7 +1247,7 @@ static bool radeon_switcheroo_can_switch(struct pci_dev *pdev)
41999 * locking inversion with the driver load path. And the access here is
42000 * completely racy anyway. So don't bother with locking for now.
42001 */
42002- return dev->open_count == 0;
42003+ return local_read(&dev->open_count) == 0;
42004 }
42005
42006 static const struct vga_switcheroo_client_ops radeon_switcheroo_ops = {
42007diff --git a/drivers/gpu/drm/radeon/radeon_drv.h b/drivers/gpu/drm/radeon/radeon_drv.h
42008index 46bd393..6ae4719 100644
42009--- a/drivers/gpu/drm/radeon/radeon_drv.h
42010+++ b/drivers/gpu/drm/radeon/radeon_drv.h
42011@@ -264,7 +264,7 @@ typedef struct drm_radeon_private {
42012
42013 /* SW interrupt */
42014 wait_queue_head_t swi_queue;
42015- atomic_t swi_emitted;
42016+ atomic_unchecked_t swi_emitted;
42017 int vblank_crtc;
42018 uint32_t irq_enable_reg;
42019 uint32_t r500_disp_irq_reg;
42020diff --git a/drivers/gpu/drm/radeon/radeon_ioc32.c b/drivers/gpu/drm/radeon/radeon_ioc32.c
42021index 0b98ea1..a3c770f 100644
42022--- a/drivers/gpu/drm/radeon/radeon_ioc32.c
42023+++ b/drivers/gpu/drm/radeon/radeon_ioc32.c
42024@@ -358,7 +358,7 @@ static int compat_radeon_cp_setparam(struct file *file, unsigned int cmd,
42025 request = compat_alloc_user_space(sizeof(*request));
42026 if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
42027 || __put_user(req32.param, &request->param)
42028- || __put_user((void __user *)(unsigned long)req32.value,
42029+ || __put_user((unsigned long)req32.value,
42030 &request->value))
42031 return -EFAULT;
42032
42033@@ -368,7 +368,7 @@ static int compat_radeon_cp_setparam(struct file *file, unsigned int cmd,
42034 #define compat_radeon_cp_setparam NULL
42035 #endif /* X86_64 || IA64 */
42036
42037-static drm_ioctl_compat_t *radeon_compat_ioctls[] = {
42038+static drm_ioctl_compat_t radeon_compat_ioctls[] = {
42039 [DRM_RADEON_CP_INIT] = compat_radeon_cp_init,
42040 [DRM_RADEON_CLEAR] = compat_radeon_cp_clear,
42041 [DRM_RADEON_STIPPLE] = compat_radeon_cp_stipple,
42042@@ -393,17 +393,13 @@ static drm_ioctl_compat_t *radeon_compat_ioctls[] = {
42043 long radeon_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
42044 {
42045 unsigned int nr = DRM_IOCTL_NR(cmd);
42046- drm_ioctl_compat_t *fn = NULL;
42047 int ret;
42048
42049 if (nr < DRM_COMMAND_BASE)
42050 return drm_compat_ioctl(filp, cmd, arg);
42051
42052- if (nr < DRM_COMMAND_BASE + ARRAY_SIZE(radeon_compat_ioctls))
42053- fn = radeon_compat_ioctls[nr - DRM_COMMAND_BASE];
42054-
42055- if (fn != NULL)
42056- ret = (*fn) (filp, cmd, arg);
42057+ if (nr < DRM_COMMAND_BASE + ARRAY_SIZE(radeon_compat_ioctls) && radeon_compat_ioctls[nr - DRM_COMMAND_BASE])
42058+ ret = (*radeon_compat_ioctls[nr - DRM_COMMAND_BASE]) (filp, cmd, arg);
42059 else
42060 ret = drm_ioctl(filp, cmd, arg);
42061
42062diff --git a/drivers/gpu/drm/radeon/radeon_irq.c b/drivers/gpu/drm/radeon/radeon_irq.c
42063index 244b19b..c19226d 100644
42064--- a/drivers/gpu/drm/radeon/radeon_irq.c
42065+++ b/drivers/gpu/drm/radeon/radeon_irq.c
42066@@ -226,8 +226,8 @@ static int radeon_emit_irq(struct drm_device * dev)
42067 unsigned int ret;
42068 RING_LOCALS;
42069
42070- atomic_inc(&dev_priv->swi_emitted);
42071- ret = atomic_read(&dev_priv->swi_emitted);
42072+ atomic_inc_unchecked(&dev_priv->swi_emitted);
42073+ ret = atomic_read_unchecked(&dev_priv->swi_emitted);
42074
42075 BEGIN_RING(4);
42076 OUT_RING_REG(RADEON_LAST_SWI_REG, ret);
42077@@ -353,7 +353,7 @@ int radeon_driver_irq_postinstall(struct drm_device *dev)
42078 drm_radeon_private_t *dev_priv =
42079 (drm_radeon_private_t *) dev->dev_private;
42080
42081- atomic_set(&dev_priv->swi_emitted, 0);
42082+ atomic_set_unchecked(&dev_priv->swi_emitted, 0);
42083 init_waitqueue_head(&dev_priv->swi_queue);
42084
42085 dev->max_vblank_count = 0x001fffff;
42086diff --git a/drivers/gpu/drm/radeon/radeon_state.c b/drivers/gpu/drm/radeon/radeon_state.c
42087index 15aee72..cda326e 100644
42088--- a/drivers/gpu/drm/radeon/radeon_state.c
42089+++ b/drivers/gpu/drm/radeon/radeon_state.c
42090@@ -2168,7 +2168,7 @@ static int radeon_cp_clear(struct drm_device *dev, void *data, struct drm_file *
42091 if (sarea_priv->nbox > RADEON_NR_SAREA_CLIPRECTS)
42092 sarea_priv->nbox = RADEON_NR_SAREA_CLIPRECTS;
42093
42094- if (copy_from_user(&depth_boxes, clear->depth_boxes,
42095+ if (sarea_priv->nbox > RADEON_NR_SAREA_CLIPRECTS || copy_from_user(&depth_boxes, clear->depth_boxes,
42096 sarea_priv->nbox * sizeof(depth_boxes[0])))
42097 return -EFAULT;
42098
42099@@ -3031,7 +3031,7 @@ static int radeon_cp_getparam(struct drm_device *dev, void *data, struct drm_fil
42100 {
42101 drm_radeon_private_t *dev_priv = dev->dev_private;
42102 drm_radeon_getparam_t *param = data;
42103- int value;
42104+ int value = 0;
42105
42106 DRM_DEBUG("pid=%d\n", DRM_CURRENTPID);
42107
42108diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c
42109index edafd3c..3af7c9c 100644
42110--- a/drivers/gpu/drm/radeon/radeon_ttm.c
42111+++ b/drivers/gpu/drm/radeon/radeon_ttm.c
42112@@ -961,7 +961,7 @@ void radeon_ttm_set_active_vram_size(struct radeon_device *rdev, u64 size)
42113 man->size = size >> PAGE_SHIFT;
42114 }
42115
42116-static struct vm_operations_struct radeon_ttm_vm_ops;
42117+static vm_operations_struct_no_const radeon_ttm_vm_ops __read_only;
42118 static const struct vm_operations_struct *ttm_vm_ops = NULL;
42119
42120 static int radeon_ttm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
42121@@ -1002,8 +1002,10 @@ int radeon_mmap(struct file *filp, struct vm_area_struct *vma)
42122 }
42123 if (unlikely(ttm_vm_ops == NULL)) {
42124 ttm_vm_ops = vma->vm_ops;
42125+ pax_open_kernel();
42126 radeon_ttm_vm_ops = *ttm_vm_ops;
42127 radeon_ttm_vm_ops.fault = &radeon_ttm_fault;
42128+ pax_close_kernel();
42129 }
42130 vma->vm_ops = &radeon_ttm_vm_ops;
42131 return 0;
42132diff --git a/drivers/gpu/drm/tegra/dc.c b/drivers/gpu/drm/tegra/dc.c
42133index 1a52522..8e78043 100644
42134--- a/drivers/gpu/drm/tegra/dc.c
42135+++ b/drivers/gpu/drm/tegra/dc.c
42136@@ -1585,7 +1585,7 @@ static int tegra_dc_debugfs_init(struct tegra_dc *dc, struct drm_minor *minor)
42137 }
42138
42139 for (i = 0; i < ARRAY_SIZE(debugfs_files); i++)
42140- dc->debugfs_files[i].data = dc;
42141+ *(void **)&dc->debugfs_files[i].data = dc;
42142
42143 err = drm_debugfs_create_files(dc->debugfs_files,
42144 ARRAY_SIZE(debugfs_files),
42145diff --git a/drivers/gpu/drm/tegra/dsi.c b/drivers/gpu/drm/tegra/dsi.c
42146index ed970f6..4eeea42 100644
42147--- a/drivers/gpu/drm/tegra/dsi.c
42148+++ b/drivers/gpu/drm/tegra/dsi.c
42149@@ -62,7 +62,7 @@ struct tegra_dsi {
42150 struct clk *clk_lp;
42151 struct clk *clk;
42152
42153- struct drm_info_list *debugfs_files;
42154+ drm_info_list_no_const *debugfs_files;
42155 struct drm_minor *minor;
42156 struct dentry *debugfs;
42157
42158diff --git a/drivers/gpu/drm/tegra/hdmi.c b/drivers/gpu/drm/tegra/hdmi.c
42159index 7eaaee74..cc2bc04 100644
42160--- a/drivers/gpu/drm/tegra/hdmi.c
42161+++ b/drivers/gpu/drm/tegra/hdmi.c
42162@@ -64,7 +64,7 @@ struct tegra_hdmi {
42163 bool stereo;
42164 bool dvi;
42165
42166- struct drm_info_list *debugfs_files;
42167+ drm_info_list_no_const *debugfs_files;
42168 struct drm_minor *minor;
42169 struct dentry *debugfs;
42170 };
42171diff --git a/drivers/gpu/drm/ttm/ttm_bo_manager.c b/drivers/gpu/drm/ttm/ttm_bo_manager.c
42172index aa0bd054..aea6a01 100644
42173--- a/drivers/gpu/drm/ttm/ttm_bo_manager.c
42174+++ b/drivers/gpu/drm/ttm/ttm_bo_manager.c
42175@@ -148,10 +148,10 @@ static void ttm_bo_man_debug(struct ttm_mem_type_manager *man,
42176 }
42177
42178 const struct ttm_mem_type_manager_func ttm_bo_manager_func = {
42179- ttm_bo_man_init,
42180- ttm_bo_man_takedown,
42181- ttm_bo_man_get_node,
42182- ttm_bo_man_put_node,
42183- ttm_bo_man_debug
42184+ .init = ttm_bo_man_init,
42185+ .takedown = ttm_bo_man_takedown,
42186+ .get_node = ttm_bo_man_get_node,
42187+ .put_node = ttm_bo_man_put_node,
42188+ .debug = ttm_bo_man_debug
42189 };
42190 EXPORT_SYMBOL(ttm_bo_manager_func);
42191diff --git a/drivers/gpu/drm/ttm/ttm_memory.c b/drivers/gpu/drm/ttm/ttm_memory.c
42192index a1803fb..c53f6b0 100644
42193--- a/drivers/gpu/drm/ttm/ttm_memory.c
42194+++ b/drivers/gpu/drm/ttm/ttm_memory.c
42195@@ -264,7 +264,7 @@ static int ttm_mem_init_kernel_zone(struct ttm_mem_global *glob,
42196 zone->glob = glob;
42197 glob->zone_kernel = zone;
42198 ret = kobject_init_and_add(
42199- &zone->kobj, &ttm_mem_zone_kobj_type, &glob->kobj, zone->name);
42200+ &zone->kobj, &ttm_mem_zone_kobj_type, &glob->kobj, "%s", zone->name);
42201 if (unlikely(ret != 0)) {
42202 kobject_put(&zone->kobj);
42203 return ret;
42204@@ -348,7 +348,7 @@ static int ttm_mem_init_dma32_zone(struct ttm_mem_global *glob,
42205 zone->glob = glob;
42206 glob->zone_dma32 = zone;
42207 ret = kobject_init_and_add(
42208- &zone->kobj, &ttm_mem_zone_kobj_type, &glob->kobj, zone->name);
42209+ &zone->kobj, &ttm_mem_zone_kobj_type, &glob->kobj, "%s", zone->name);
42210 if (unlikely(ret != 0)) {
42211 kobject_put(&zone->kobj);
42212 return ret;
42213diff --git a/drivers/gpu/drm/ttm/ttm_page_alloc.c b/drivers/gpu/drm/ttm/ttm_page_alloc.c
42214index 025c429..314062f 100644
42215--- a/drivers/gpu/drm/ttm/ttm_page_alloc.c
42216+++ b/drivers/gpu/drm/ttm/ttm_page_alloc.c
42217@@ -54,7 +54,7 @@
42218
42219 #define NUM_PAGES_TO_ALLOC (PAGE_SIZE/sizeof(struct page *))
42220 #define SMALL_ALLOCATION 16
42221-#define FREE_ALL_PAGES (~0U)
42222+#define FREE_ALL_PAGES (~0UL)
42223 /* times are in msecs */
42224 #define PAGE_FREE_INTERVAL 1000
42225
42226@@ -299,15 +299,14 @@ static void ttm_pool_update_free_locked(struct ttm_page_pool *pool,
42227 * @free_all: If set to true will free all pages in pool
42228 * @use_static: Safe to use static buffer
42229 **/
42230-static int ttm_page_pool_free(struct ttm_page_pool *pool, unsigned nr_free,
42231+static unsigned long ttm_page_pool_free(struct ttm_page_pool *pool, unsigned long nr_free,
42232 bool use_static)
42233 {
42234 static struct page *static_buf[NUM_PAGES_TO_ALLOC];
42235 unsigned long irq_flags;
42236 struct page *p;
42237 struct page **pages_to_free;
42238- unsigned freed_pages = 0,
42239- npages_to_free = nr_free;
42240+ unsigned long freed_pages = 0, npages_to_free = nr_free;
42241
42242 if (NUM_PAGES_TO_ALLOC < nr_free)
42243 npages_to_free = NUM_PAGES_TO_ALLOC;
42244@@ -371,7 +370,8 @@ restart:
42245 __list_del(&p->lru, &pool->list);
42246
42247 ttm_pool_update_free_locked(pool, freed_pages);
42248- nr_free -= freed_pages;
42249+ if (likely(nr_free != FREE_ALL_PAGES))
42250+ nr_free -= freed_pages;
42251 }
42252
42253 spin_unlock_irqrestore(&pool->lock, irq_flags);
42254@@ -399,7 +399,7 @@ ttm_pool_shrink_scan(struct shrinker *shrink, struct shrink_control *sc)
42255 unsigned i;
42256 unsigned pool_offset;
42257 struct ttm_page_pool *pool;
42258- int shrink_pages = sc->nr_to_scan;
42259+ unsigned long shrink_pages = sc->nr_to_scan;
42260 unsigned long freed = 0;
42261
42262 if (!mutex_trylock(&lock))
42263@@ -407,7 +407,7 @@ ttm_pool_shrink_scan(struct shrinker *shrink, struct shrink_control *sc)
42264 pool_offset = ++start_pool % NUM_POOLS;
42265 /* select start pool in round robin fashion */
42266 for (i = 0; i < NUM_POOLS; ++i) {
42267- unsigned nr_free = shrink_pages;
42268+ unsigned long nr_free = shrink_pages;
42269 if (shrink_pages == 0)
42270 break;
42271 pool = &_manager->pools[(i + pool_offset)%NUM_POOLS];
42272@@ -673,7 +673,7 @@ out:
42273 }
42274
42275 /* Put all pages in pages list to correct pool to wait for reuse */
42276-static void ttm_put_pages(struct page **pages, unsigned npages, int flags,
42277+static void ttm_put_pages(struct page **pages, unsigned long npages, int flags,
42278 enum ttm_caching_state cstate)
42279 {
42280 unsigned long irq_flags;
42281@@ -728,7 +728,7 @@ static int ttm_get_pages(struct page **pages, unsigned npages, int flags,
42282 struct list_head plist;
42283 struct page *p = NULL;
42284 gfp_t gfp_flags = GFP_USER;
42285- unsigned count;
42286+ unsigned long count;
42287 int r;
42288
42289 /* set zero flag for page allocation if required */
42290diff --git a/drivers/gpu/drm/ttm/ttm_page_alloc_dma.c b/drivers/gpu/drm/ttm/ttm_page_alloc_dma.c
42291index 01e1d27..aaa018a 100644
42292--- a/drivers/gpu/drm/ttm/ttm_page_alloc_dma.c
42293+++ b/drivers/gpu/drm/ttm/ttm_page_alloc_dma.c
42294@@ -56,7 +56,7 @@
42295
42296 #define NUM_PAGES_TO_ALLOC (PAGE_SIZE/sizeof(struct page *))
42297 #define SMALL_ALLOCATION 4
42298-#define FREE_ALL_PAGES (~0U)
42299+#define FREE_ALL_PAGES (~0UL)
42300 /* times are in msecs */
42301 #define IS_UNDEFINED (0)
42302 #define IS_WC (1<<1)
42303@@ -413,7 +413,7 @@ static void ttm_dma_page_put(struct dma_pool *pool, struct dma_page *d_page)
42304 * @nr_free: If set to true will free all pages in pool
42305 * @use_static: Safe to use static buffer
42306 **/
42307-static unsigned ttm_dma_page_pool_free(struct dma_pool *pool, unsigned nr_free,
42308+static unsigned long ttm_dma_page_pool_free(struct dma_pool *pool, unsigned long nr_free,
42309 bool use_static)
42310 {
42311 static struct page *static_buf[NUM_PAGES_TO_ALLOC];
42312@@ -421,8 +421,7 @@ static unsigned ttm_dma_page_pool_free(struct dma_pool *pool, unsigned nr_free,
42313 struct dma_page *dma_p, *tmp;
42314 struct page **pages_to_free;
42315 struct list_head d_pages;
42316- unsigned freed_pages = 0,
42317- npages_to_free = nr_free;
42318+ unsigned long freed_pages = 0, npages_to_free = nr_free;
42319
42320 if (NUM_PAGES_TO_ALLOC < nr_free)
42321 npages_to_free = NUM_PAGES_TO_ALLOC;
42322@@ -499,7 +498,8 @@ restart:
42323 /* remove range of pages from the pool */
42324 if (freed_pages) {
42325 ttm_pool_update_free_locked(pool, freed_pages);
42326- nr_free -= freed_pages;
42327+ if (likely(nr_free != FREE_ALL_PAGES))
42328+ nr_free -= freed_pages;
42329 }
42330
42331 spin_unlock_irqrestore(&pool->lock, irq_flags);
42332@@ -936,7 +936,7 @@ void ttm_dma_unpopulate(struct ttm_dma_tt *ttm_dma, struct device *dev)
42333 struct dma_page *d_page, *next;
42334 enum pool_type type;
42335 bool is_cached = false;
42336- unsigned count = 0, i, npages = 0;
42337+ unsigned long count = 0, i, npages = 0;
42338 unsigned long irq_flags;
42339
42340 type = ttm_to_type(ttm->page_flags, ttm->caching_state);
42341@@ -1012,7 +1012,7 @@ ttm_dma_pool_shrink_scan(struct shrinker *shrink, struct shrink_control *sc)
42342 static unsigned start_pool;
42343 unsigned idx = 0;
42344 unsigned pool_offset;
42345- unsigned shrink_pages = sc->nr_to_scan;
42346+ unsigned long shrink_pages = sc->nr_to_scan;
42347 struct device_pools *p;
42348 unsigned long freed = 0;
42349
42350@@ -1025,7 +1025,7 @@ ttm_dma_pool_shrink_scan(struct shrinker *shrink, struct shrink_control *sc)
42351 goto out;
42352 pool_offset = ++start_pool % _manager->npools;
42353 list_for_each_entry(p, &_manager->pools, pools) {
42354- unsigned nr_free;
42355+ unsigned long nr_free;
42356
42357 if (!p->dev)
42358 continue;
42359@@ -1039,7 +1039,7 @@ ttm_dma_pool_shrink_scan(struct shrinker *shrink, struct shrink_control *sc)
42360 shrink_pages = ttm_dma_page_pool_free(p->pool, nr_free, true);
42361 freed += nr_free - shrink_pages;
42362
42363- pr_debug("%s: (%s:%d) Asked to shrink %d, have %d more to go\n",
42364+ pr_debug("%s: (%s:%d) Asked to shrink %lu, have %lu more to go\n",
42365 p->pool->dev_name, p->pool->name, current->pid,
42366 nr_free, shrink_pages);
42367 }
42368diff --git a/drivers/gpu/drm/udl/udl_fb.c b/drivers/gpu/drm/udl/udl_fb.c
42369index 5fc16ce..1bd84ec 100644
42370--- a/drivers/gpu/drm/udl/udl_fb.c
42371+++ b/drivers/gpu/drm/udl/udl_fb.c
42372@@ -367,7 +367,6 @@ static int udl_fb_release(struct fb_info *info, int user)
42373 fb_deferred_io_cleanup(info);
42374 kfree(info->fbdefio);
42375 info->fbdefio = NULL;
42376- info->fbops->fb_mmap = udl_fb_mmap;
42377 }
42378
42379 pr_warn("released /dev/fb%d user=%d count=%d\n",
42380diff --git a/drivers/gpu/drm/via/via_drv.h b/drivers/gpu/drm/via/via_drv.h
42381index ef8c500..01030c8 100644
42382--- a/drivers/gpu/drm/via/via_drv.h
42383+++ b/drivers/gpu/drm/via/via_drv.h
42384@@ -53,7 +53,7 @@ typedef struct drm_via_ring_buffer {
42385 typedef uint32_t maskarray_t[5];
42386
42387 typedef struct drm_via_irq {
42388- atomic_t irq_received;
42389+ atomic_unchecked_t irq_received;
42390 uint32_t pending_mask;
42391 uint32_t enable_mask;
42392 wait_queue_head_t irq_queue;
42393@@ -77,7 +77,7 @@ typedef struct drm_via_private {
42394 struct timeval last_vblank;
42395 int last_vblank_valid;
42396 unsigned usec_per_vblank;
42397- atomic_t vbl_received;
42398+ atomic_unchecked_t vbl_received;
42399 drm_via_state_t hc_state;
42400 char pci_buf[VIA_PCI_BUF_SIZE];
42401 const uint32_t *fire_offsets[VIA_FIRE_BUF_SIZE];
42402diff --git a/drivers/gpu/drm/via/via_irq.c b/drivers/gpu/drm/via/via_irq.c
42403index 1319433..a993b0c 100644
42404--- a/drivers/gpu/drm/via/via_irq.c
42405+++ b/drivers/gpu/drm/via/via_irq.c
42406@@ -101,7 +101,7 @@ u32 via_get_vblank_counter(struct drm_device *dev, int crtc)
42407 if (crtc != 0)
42408 return 0;
42409
42410- return atomic_read(&dev_priv->vbl_received);
42411+ return atomic_read_unchecked(&dev_priv->vbl_received);
42412 }
42413
42414 irqreturn_t via_driver_irq_handler(int irq, void *arg)
42415@@ -116,8 +116,8 @@ irqreturn_t via_driver_irq_handler(int irq, void *arg)
42416
42417 status = VIA_READ(VIA_REG_INTERRUPT);
42418 if (status & VIA_IRQ_VBLANK_PENDING) {
42419- atomic_inc(&dev_priv->vbl_received);
42420- if (!(atomic_read(&dev_priv->vbl_received) & 0x0F)) {
42421+ atomic_inc_unchecked(&dev_priv->vbl_received);
42422+ if (!(atomic_read_unchecked(&dev_priv->vbl_received) & 0x0F)) {
42423 do_gettimeofday(&cur_vblank);
42424 if (dev_priv->last_vblank_valid) {
42425 dev_priv->usec_per_vblank =
42426@@ -127,7 +127,7 @@ irqreturn_t via_driver_irq_handler(int irq, void *arg)
42427 dev_priv->last_vblank = cur_vblank;
42428 dev_priv->last_vblank_valid = 1;
42429 }
42430- if (!(atomic_read(&dev_priv->vbl_received) & 0xFF)) {
42431+ if (!(atomic_read_unchecked(&dev_priv->vbl_received) & 0xFF)) {
42432 DRM_DEBUG("US per vblank is: %u\n",
42433 dev_priv->usec_per_vblank);
42434 }
42435@@ -137,7 +137,7 @@ irqreturn_t via_driver_irq_handler(int irq, void *arg)
42436
42437 for (i = 0; i < dev_priv->num_irqs; ++i) {
42438 if (status & cur_irq->pending_mask) {
42439- atomic_inc(&cur_irq->irq_received);
42440+ atomic_inc_unchecked(&cur_irq->irq_received);
42441 wake_up(&cur_irq->irq_queue);
42442 handled = 1;
42443 if (dev_priv->irq_map[drm_via_irq_dma0_td] == i)
42444@@ -242,11 +242,11 @@ via_driver_irq_wait(struct drm_device *dev, unsigned int irq, int force_sequence
42445 DRM_WAIT_ON(ret, cur_irq->irq_queue, 3 * HZ,
42446 ((VIA_READ(masks[irq][2]) & masks[irq][3]) ==
42447 masks[irq][4]));
42448- cur_irq_sequence = atomic_read(&cur_irq->irq_received);
42449+ cur_irq_sequence = atomic_read_unchecked(&cur_irq->irq_received);
42450 } else {
42451 DRM_WAIT_ON(ret, cur_irq->irq_queue, 3 * HZ,
42452 (((cur_irq_sequence =
42453- atomic_read(&cur_irq->irq_received)) -
42454+ atomic_read_unchecked(&cur_irq->irq_received)) -
42455 *sequence) <= (1 << 23)));
42456 }
42457 *sequence = cur_irq_sequence;
42458@@ -284,7 +284,7 @@ void via_driver_irq_preinstall(struct drm_device *dev)
42459 }
42460
42461 for (i = 0; i < dev_priv->num_irqs; ++i) {
42462- atomic_set(&cur_irq->irq_received, 0);
42463+ atomic_set_unchecked(&cur_irq->irq_received, 0);
42464 cur_irq->enable_mask = dev_priv->irq_masks[i][0];
42465 cur_irq->pending_mask = dev_priv->irq_masks[i][1];
42466 init_waitqueue_head(&cur_irq->irq_queue);
42467@@ -366,7 +366,7 @@ int via_wait_irq(struct drm_device *dev, void *data, struct drm_file *file_priv)
42468 switch (irqwait->request.type & ~VIA_IRQ_FLAGS_MASK) {
42469 case VIA_IRQ_RELATIVE:
42470 irqwait->request.sequence +=
42471- atomic_read(&cur_irq->irq_received);
42472+ atomic_read_unchecked(&cur_irq->irq_received);
42473 irqwait->request.type &= ~_DRM_VBLANK_RELATIVE;
42474 case VIA_IRQ_ABSOLUTE:
42475 break;
42476diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
42477index d26a6da..5fa41ed 100644
42478--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
42479+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
42480@@ -447,7 +447,7 @@ struct vmw_private {
42481 * Fencing and IRQs.
42482 */
42483
42484- atomic_t marker_seq;
42485+ atomic_unchecked_t marker_seq;
42486 wait_queue_head_t fence_queue;
42487 wait_queue_head_t fifo_queue;
42488 spinlock_t waiter_lock;
42489diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c b/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c
42490index 39f2b03..d1b0a64 100644
42491--- a/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c
42492+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c
42493@@ -152,7 +152,7 @@ int vmw_fifo_init(struct vmw_private *dev_priv, struct vmw_fifo_state *fifo)
42494 (unsigned int) min,
42495 (unsigned int) fifo->capabilities);
42496
42497- atomic_set(&dev_priv->marker_seq, dev_priv->last_read_seqno);
42498+ atomic_set_unchecked(&dev_priv->marker_seq, dev_priv->last_read_seqno);
42499 iowrite32(dev_priv->last_read_seqno, fifo_mem + SVGA_FIFO_FENCE);
42500 vmw_marker_queue_init(&fifo->marker_queue);
42501 return vmw_fifo_send_fence(dev_priv, &dummy);
42502@@ -372,7 +372,7 @@ void *vmw_fifo_reserve(struct vmw_private *dev_priv, uint32_t bytes)
42503 if (reserveable)
42504 iowrite32(bytes, fifo_mem +
42505 SVGA_FIFO_RESERVED);
42506- return fifo_mem + (next_cmd >> 2);
42507+ return (__le32 __force_kernel *)fifo_mem + (next_cmd >> 2);
42508 } else {
42509 need_bounce = true;
42510 }
42511@@ -492,7 +492,7 @@ int vmw_fifo_send_fence(struct vmw_private *dev_priv, uint32_t *seqno)
42512
42513 fm = vmw_fifo_reserve(dev_priv, bytes);
42514 if (unlikely(fm == NULL)) {
42515- *seqno = atomic_read(&dev_priv->marker_seq);
42516+ *seqno = atomic_read_unchecked(&dev_priv->marker_seq);
42517 ret = -ENOMEM;
42518 (void)vmw_fallback_wait(dev_priv, false, true, *seqno,
42519 false, 3*HZ);
42520@@ -500,7 +500,7 @@ int vmw_fifo_send_fence(struct vmw_private *dev_priv, uint32_t *seqno)
42521 }
42522
42523 do {
42524- *seqno = atomic_add_return(1, &dev_priv->marker_seq);
42525+ *seqno = atomic_add_return_unchecked(1, &dev_priv->marker_seq);
42526 } while (*seqno == 0);
42527
42528 if (!(fifo_state->capabilities & SVGA_FIFO_CAP_FENCE)) {
42529diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_gmrid_manager.c b/drivers/gpu/drm/vmwgfx/vmwgfx_gmrid_manager.c
42530index 170b61b..fec7348 100644
42531--- a/drivers/gpu/drm/vmwgfx/vmwgfx_gmrid_manager.c
42532+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_gmrid_manager.c
42533@@ -164,9 +164,9 @@ static void vmw_gmrid_man_debug(struct ttm_mem_type_manager *man,
42534 }
42535
42536 const struct ttm_mem_type_manager_func vmw_gmrid_manager_func = {
42537- vmw_gmrid_man_init,
42538- vmw_gmrid_man_takedown,
42539- vmw_gmrid_man_get_node,
42540- vmw_gmrid_man_put_node,
42541- vmw_gmrid_man_debug
42542+ .init = vmw_gmrid_man_init,
42543+ .takedown = vmw_gmrid_man_takedown,
42544+ .get_node = vmw_gmrid_man_get_node,
42545+ .put_node = vmw_gmrid_man_put_node,
42546+ .debug = vmw_gmrid_man_debug
42547 };
42548diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c b/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c
42549index 69c8ce2..cacb0ab 100644
42550--- a/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c
42551+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c
42552@@ -235,7 +235,7 @@ int vmw_present_ioctl(struct drm_device *dev, void *data,
42553 int ret;
42554
42555 num_clips = arg->num_clips;
42556- clips_ptr = (struct drm_vmw_rect *)(unsigned long)arg->clips_ptr;
42557+ clips_ptr = (struct drm_vmw_rect __user *)(unsigned long)arg->clips_ptr;
42558
42559 if (unlikely(num_clips == 0))
42560 return 0;
42561@@ -318,7 +318,7 @@ int vmw_present_readback_ioctl(struct drm_device *dev, void *data,
42562 int ret;
42563
42564 num_clips = arg->num_clips;
42565- clips_ptr = (struct drm_vmw_rect *)(unsigned long)arg->clips_ptr;
42566+ clips_ptr = (struct drm_vmw_rect __user *)(unsigned long)arg->clips_ptr;
42567
42568 if (unlikely(num_clips == 0))
42569 return 0;
42570diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_irq.c b/drivers/gpu/drm/vmwgfx/vmwgfx_irq.c
42571index 9fe9827..0aa2fc0 100644
42572--- a/drivers/gpu/drm/vmwgfx/vmwgfx_irq.c
42573+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_irq.c
42574@@ -102,7 +102,7 @@ bool vmw_seqno_passed(struct vmw_private *dev_priv,
42575 * emitted. Then the fence is stale and signaled.
42576 */
42577
42578- ret = ((atomic_read(&dev_priv->marker_seq) - seqno)
42579+ ret = ((atomic_read_unchecked(&dev_priv->marker_seq) - seqno)
42580 > VMW_FENCE_WRAP);
42581
42582 return ret;
42583@@ -133,7 +133,7 @@ int vmw_fallback_wait(struct vmw_private *dev_priv,
42584
42585 if (fifo_idle)
42586 down_read(&fifo_state->rwsem);
42587- signal_seq = atomic_read(&dev_priv->marker_seq);
42588+ signal_seq = atomic_read_unchecked(&dev_priv->marker_seq);
42589 ret = 0;
42590
42591 for (;;) {
42592diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_marker.c b/drivers/gpu/drm/vmwgfx/vmwgfx_marker.c
42593index efd1ffd..0ae13ca 100644
42594--- a/drivers/gpu/drm/vmwgfx/vmwgfx_marker.c
42595+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_marker.c
42596@@ -135,7 +135,7 @@ int vmw_wait_lag(struct vmw_private *dev_priv,
42597 while (!vmw_lag_lt(queue, us)) {
42598 spin_lock(&queue->lock);
42599 if (list_empty(&queue->head))
42600- seqno = atomic_read(&dev_priv->marker_seq);
42601+ seqno = atomic_read_unchecked(&dev_priv->marker_seq);
42602 else {
42603 marker = list_first_entry(&queue->head,
42604 struct vmw_marker, head);
42605diff --git a/drivers/gpu/vga/vga_switcheroo.c b/drivers/gpu/vga/vga_switcheroo.c
42606index 37ac7b5..d52a5c9 100644
42607--- a/drivers/gpu/vga/vga_switcheroo.c
42608+++ b/drivers/gpu/vga/vga_switcheroo.c
42609@@ -644,7 +644,7 @@ static int vga_switcheroo_runtime_resume(struct device *dev)
42610
42611 /* this version is for the case where the power switch is separate
42612 to the device being powered down. */
42613-int vga_switcheroo_init_domain_pm_ops(struct device *dev, struct dev_pm_domain *domain)
42614+int vga_switcheroo_init_domain_pm_ops(struct device *dev, dev_pm_domain_no_const *domain)
42615 {
42616 /* copy over all the bus versions */
42617 if (dev->bus && dev->bus->pm) {
42618@@ -695,7 +695,7 @@ static int vga_switcheroo_runtime_resume_hdmi_audio(struct device *dev)
42619 return ret;
42620 }
42621
42622-int vga_switcheroo_init_domain_pm_optimus_hdmi_audio(struct device *dev, struct dev_pm_domain *domain)
42623+int vga_switcheroo_init_domain_pm_optimus_hdmi_audio(struct device *dev, dev_pm_domain_no_const *domain)
42624 {
42625 /* copy over all the bus versions */
42626 if (dev->bus && dev->bus->pm) {
42627diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
42628index 56ce8c2..32ce524 100644
42629--- a/drivers/hid/hid-core.c
42630+++ b/drivers/hid/hid-core.c
42631@@ -2531,7 +2531,7 @@ EXPORT_SYMBOL_GPL(hid_ignore);
42632
42633 int hid_add_device(struct hid_device *hdev)
42634 {
42635- static atomic_t id = ATOMIC_INIT(0);
42636+ static atomic_unchecked_t id = ATOMIC_INIT(0);
42637 int ret;
42638
42639 if (WARN_ON(hdev->status & HID_STAT_ADDED))
42640@@ -2574,7 +2574,7 @@ int hid_add_device(struct hid_device *hdev)
42641 /* XXX hack, any other cleaner solution after the driver core
42642 * is converted to allow more than 20 bytes as the device name? */
42643 dev_set_name(&hdev->dev, "%04X:%04X:%04X.%04X", hdev->bus,
42644- hdev->vendor, hdev->product, atomic_inc_return(&id));
42645+ hdev->vendor, hdev->product, atomic_inc_return_unchecked(&id));
42646
42647 hid_debug_register(hdev, dev_name(&hdev->dev));
42648 ret = device_add(&hdev->dev);
42649diff --git a/drivers/hid/hid-wiimote-debug.c b/drivers/hid/hid-wiimote-debug.c
42650index c13fb5b..55a3802 100644
42651--- a/drivers/hid/hid-wiimote-debug.c
42652+++ b/drivers/hid/hid-wiimote-debug.c
42653@@ -66,7 +66,7 @@ static ssize_t wiidebug_eeprom_read(struct file *f, char __user *u, size_t s,
42654 else if (size == 0)
42655 return -EIO;
42656
42657- if (copy_to_user(u, buf, size))
42658+ if (size > sizeof(buf) || copy_to_user(u, buf, size))
42659 return -EFAULT;
42660
42661 *off += size;
42662diff --git a/drivers/hv/channel.c b/drivers/hv/channel.c
42663index 00bc30e..d8e5097 100644
42664--- a/drivers/hv/channel.c
42665+++ b/drivers/hv/channel.c
42666@@ -370,7 +370,7 @@ int vmbus_establish_gpadl(struct vmbus_channel *channel, void *kbuffer,
42667 int ret = 0;
42668
42669 next_gpadl_handle =
42670- (atomic_inc_return(&vmbus_connection.next_gpadl_handle) - 1);
42671+ (atomic_inc_return_unchecked(&vmbus_connection.next_gpadl_handle) - 1);
42672
42673 ret = create_gpadl_header(kbuffer, size, &msginfo, &msgcount);
42674 if (ret)
42675diff --git a/drivers/hv/hv.c b/drivers/hv/hv.c
42676index 50e51a5..b0bfd78 100644
42677--- a/drivers/hv/hv.c
42678+++ b/drivers/hv/hv.c
42679@@ -118,7 +118,7 @@ static u64 do_hypercall(u64 control, void *input, void *output)
42680 u64 output_address = (output) ? virt_to_phys(output) : 0;
42681 u32 output_address_hi = output_address >> 32;
42682 u32 output_address_lo = output_address & 0xFFFFFFFF;
42683- void *hypercall_page = hv_context.hypercall_page;
42684+ void *hypercall_page = ktva_ktla(hv_context.hypercall_page);
42685
42686 __asm__ __volatile__ ("call *%8" : "=d"(hv_status_hi),
42687 "=a"(hv_status_lo) : "d" (control_hi),
42688@@ -164,7 +164,7 @@ int hv_init(void)
42689 /* See if the hypercall page is already set */
42690 rdmsrl(HV_X64_MSR_HYPERCALL, hypercall_msr.as_uint64);
42691
42692- virtaddr = __vmalloc(PAGE_SIZE, GFP_KERNEL, PAGE_KERNEL_EXEC);
42693+ virtaddr = __vmalloc(PAGE_SIZE, GFP_KERNEL, PAGE_KERNEL_RX);
42694
42695 if (!virtaddr)
42696 goto cleanup;
42697diff --git a/drivers/hv/hv_balloon.c b/drivers/hv/hv_balloon.c
42698index ff16938..e60879c 100644
42699--- a/drivers/hv/hv_balloon.c
42700+++ b/drivers/hv/hv_balloon.c
42701@@ -470,7 +470,7 @@ MODULE_PARM_DESC(hot_add, "If set attempt memory hot_add");
42702
42703 module_param(pressure_report_delay, uint, (S_IRUGO | S_IWUSR));
42704 MODULE_PARM_DESC(pressure_report_delay, "Delay in secs in reporting pressure");
42705-static atomic_t trans_id = ATOMIC_INIT(0);
42706+static atomic_unchecked_t trans_id = ATOMIC_INIT(0);
42707
42708 static int dm_ring_size = (5 * PAGE_SIZE);
42709
42710@@ -947,7 +947,7 @@ static void hot_add_req(struct work_struct *dummy)
42711 pr_info("Memory hot add failed\n");
42712
42713 dm->state = DM_INITIALIZED;
42714- resp.hdr.trans_id = atomic_inc_return(&trans_id);
42715+ resp.hdr.trans_id = atomic_inc_return_unchecked(&trans_id);
42716 vmbus_sendpacket(dm->dev->channel, &resp,
42717 sizeof(struct dm_hot_add_response),
42718 (unsigned long)NULL,
42719@@ -1028,7 +1028,7 @@ static void post_status(struct hv_dynmem_device *dm)
42720 memset(&status, 0, sizeof(struct dm_status));
42721 status.hdr.type = DM_STATUS_REPORT;
42722 status.hdr.size = sizeof(struct dm_status);
42723- status.hdr.trans_id = atomic_inc_return(&trans_id);
42724+ status.hdr.trans_id = atomic_inc_return_unchecked(&trans_id);
42725
42726 /*
42727 * The host expects the guest to report free memory.
42728@@ -1048,7 +1048,7 @@ static void post_status(struct hv_dynmem_device *dm)
42729 * send the status. This can happen if we were interrupted
42730 * after we picked our transaction ID.
42731 */
42732- if (status.hdr.trans_id != atomic_read(&trans_id))
42733+ if (status.hdr.trans_id != atomic_read_unchecked(&trans_id))
42734 return;
42735
42736 /*
42737@@ -1188,7 +1188,7 @@ static void balloon_up(struct work_struct *dummy)
42738 */
42739
42740 do {
42741- bl_resp->hdr.trans_id = atomic_inc_return(&trans_id);
42742+ bl_resp->hdr.trans_id = atomic_inc_return_unchecked(&trans_id);
42743 ret = vmbus_sendpacket(dm_device.dev->channel,
42744 bl_resp,
42745 bl_resp->hdr.size,
42746@@ -1234,7 +1234,7 @@ static void balloon_down(struct hv_dynmem_device *dm,
42747
42748 memset(&resp, 0, sizeof(struct dm_unballoon_response));
42749 resp.hdr.type = DM_UNBALLOON_RESPONSE;
42750- resp.hdr.trans_id = atomic_inc_return(&trans_id);
42751+ resp.hdr.trans_id = atomic_inc_return_unchecked(&trans_id);
42752 resp.hdr.size = sizeof(struct dm_unballoon_response);
42753
42754 vmbus_sendpacket(dm_device.dev->channel, &resp,
42755@@ -1295,7 +1295,7 @@ static void version_resp(struct hv_dynmem_device *dm,
42756 memset(&version_req, 0, sizeof(struct dm_version_request));
42757 version_req.hdr.type = DM_VERSION_REQUEST;
42758 version_req.hdr.size = sizeof(struct dm_version_request);
42759- version_req.hdr.trans_id = atomic_inc_return(&trans_id);
42760+ version_req.hdr.trans_id = atomic_inc_return_unchecked(&trans_id);
42761 version_req.version.version = DYNMEM_PROTOCOL_VERSION_WIN7;
42762 version_req.is_last_attempt = 1;
42763
42764@@ -1468,7 +1468,7 @@ static int balloon_probe(struct hv_device *dev,
42765 memset(&version_req, 0, sizeof(struct dm_version_request));
42766 version_req.hdr.type = DM_VERSION_REQUEST;
42767 version_req.hdr.size = sizeof(struct dm_version_request);
42768- version_req.hdr.trans_id = atomic_inc_return(&trans_id);
42769+ version_req.hdr.trans_id = atomic_inc_return_unchecked(&trans_id);
42770 version_req.version.version = DYNMEM_PROTOCOL_VERSION_WIN8;
42771 version_req.is_last_attempt = 0;
42772
42773@@ -1499,7 +1499,7 @@ static int balloon_probe(struct hv_device *dev,
42774 memset(&cap_msg, 0, sizeof(struct dm_capabilities));
42775 cap_msg.hdr.type = DM_CAPABILITIES_REPORT;
42776 cap_msg.hdr.size = sizeof(struct dm_capabilities);
42777- cap_msg.hdr.trans_id = atomic_inc_return(&trans_id);
42778+ cap_msg.hdr.trans_id = atomic_inc_return_unchecked(&trans_id);
42779
42780 cap_msg.caps.cap_bits.balloon = 1;
42781 cap_msg.caps.cap_bits.hot_add = 1;
42782diff --git a/drivers/hv/hyperv_vmbus.h b/drivers/hv/hyperv_vmbus.h
42783index 44b1c94..6dccc2c 100644
42784--- a/drivers/hv/hyperv_vmbus.h
42785+++ b/drivers/hv/hyperv_vmbus.h
42786@@ -632,7 +632,7 @@ enum vmbus_connect_state {
42787 struct vmbus_connection {
42788 enum vmbus_connect_state conn_state;
42789
42790- atomic_t next_gpadl_handle;
42791+ atomic_unchecked_t next_gpadl_handle;
42792
42793 /*
42794 * Represents channel interrupts. Each bit position represents a
42795diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
42796index f518b8d7..4bc0b64 100644
42797--- a/drivers/hv/vmbus_drv.c
42798+++ b/drivers/hv/vmbus_drv.c
42799@@ -840,10 +840,10 @@ int vmbus_device_register(struct hv_device *child_device_obj)
42800 {
42801 int ret = 0;
42802
42803- static atomic_t device_num = ATOMIC_INIT(0);
42804+ static atomic_unchecked_t device_num = ATOMIC_INIT(0);
42805
42806 dev_set_name(&child_device_obj->device, "vmbus_0_%d",
42807- atomic_inc_return(&device_num));
42808+ atomic_inc_return_unchecked(&device_num));
42809
42810 child_device_obj->device.bus = &hv_bus;
42811 child_device_obj->device.parent = &hv_acpi_dev->dev;
42812diff --git a/drivers/hwmon/acpi_power_meter.c b/drivers/hwmon/acpi_power_meter.c
42813index 579bdf9..0dac21d5 100644
42814--- a/drivers/hwmon/acpi_power_meter.c
42815+++ b/drivers/hwmon/acpi_power_meter.c
42816@@ -116,7 +116,7 @@ struct sensor_template {
42817 struct device_attribute *devattr,
42818 const char *buf, size_t count);
42819 int index;
42820-};
42821+} __do_const;
42822
42823 /* Averaging interval */
42824 static int update_avg_interval(struct acpi_power_meter_resource *resource)
42825@@ -631,7 +631,7 @@ static int register_attrs(struct acpi_power_meter_resource *resource,
42826 struct sensor_template *attrs)
42827 {
42828 struct device *dev = &resource->acpi_dev->dev;
42829- struct sensor_device_attribute *sensors =
42830+ sensor_device_attribute_no_const *sensors =
42831 &resource->sensors[resource->num_sensors];
42832 int res = 0;
42833
42834@@ -973,7 +973,7 @@ static int __init enable_cap_knobs(const struct dmi_system_id *d)
42835 return 0;
42836 }
42837
42838-static struct dmi_system_id __initdata pm_dmi_table[] = {
42839+static const struct dmi_system_id __initconst pm_dmi_table[] = {
42840 {
42841 enable_cap_knobs, "IBM Active Energy Manager",
42842 {
42843diff --git a/drivers/hwmon/applesmc.c b/drivers/hwmon/applesmc.c
42844index 0af63da..05a183a 100644
42845--- a/drivers/hwmon/applesmc.c
42846+++ b/drivers/hwmon/applesmc.c
42847@@ -1105,7 +1105,7 @@ static int applesmc_create_nodes(struct applesmc_node_group *groups, int num)
42848 {
42849 struct applesmc_node_group *grp;
42850 struct applesmc_dev_attr *node;
42851- struct attribute *attr;
42852+ attribute_no_const *attr;
42853 int ret, i;
42854
42855 for (grp = groups; grp->format; grp++) {
42856diff --git a/drivers/hwmon/asus_atk0110.c b/drivers/hwmon/asus_atk0110.c
42857index cccef87..06ce8ec 100644
42858--- a/drivers/hwmon/asus_atk0110.c
42859+++ b/drivers/hwmon/asus_atk0110.c
42860@@ -147,10 +147,10 @@ MODULE_DEVICE_TABLE(acpi, atk_ids);
42861 struct atk_sensor_data {
42862 struct list_head list;
42863 struct atk_data *data;
42864- struct device_attribute label_attr;
42865- struct device_attribute input_attr;
42866- struct device_attribute limit1_attr;
42867- struct device_attribute limit2_attr;
42868+ device_attribute_no_const label_attr;
42869+ device_attribute_no_const input_attr;
42870+ device_attribute_no_const limit1_attr;
42871+ device_attribute_no_const limit2_attr;
42872 char label_attr_name[ATTR_NAME_SIZE];
42873 char input_attr_name[ATTR_NAME_SIZE];
42874 char limit1_attr_name[ATTR_NAME_SIZE];
42875@@ -270,7 +270,7 @@ static ssize_t atk_name_show(struct device *dev,
42876 static struct device_attribute atk_name_attr =
42877 __ATTR(name, 0444, atk_name_show, NULL);
42878
42879-static void atk_init_attribute(struct device_attribute *attr, char *name,
42880+static void atk_init_attribute(device_attribute_no_const *attr, char *name,
42881 sysfs_show_func show)
42882 {
42883 sysfs_attr_init(&attr->attr);
42884diff --git a/drivers/hwmon/coretemp.c b/drivers/hwmon/coretemp.c
42885index 5b7fec8..05c957a 100644
42886--- a/drivers/hwmon/coretemp.c
42887+++ b/drivers/hwmon/coretemp.c
42888@@ -783,7 +783,7 @@ static int coretemp_cpu_callback(struct notifier_block *nfb,
42889 return NOTIFY_OK;
42890 }
42891
42892-static struct notifier_block coretemp_cpu_notifier __refdata = {
42893+static struct notifier_block coretemp_cpu_notifier = {
42894 .notifier_call = coretemp_cpu_callback,
42895 };
42896
42897diff --git a/drivers/hwmon/ibmaem.c b/drivers/hwmon/ibmaem.c
42898index 7a8a6fb..015c1fd 100644
42899--- a/drivers/hwmon/ibmaem.c
42900+++ b/drivers/hwmon/ibmaem.c
42901@@ -924,7 +924,7 @@ static int aem_register_sensors(struct aem_data *data,
42902 struct aem_rw_sensor_template *rw)
42903 {
42904 struct device *dev = &data->pdev->dev;
42905- struct sensor_device_attribute *sensors = data->sensors;
42906+ sensor_device_attribute_no_const *sensors = data->sensors;
42907 int err;
42908
42909 /* Set up read-only sensors */
42910diff --git a/drivers/hwmon/iio_hwmon.c b/drivers/hwmon/iio_hwmon.c
42911index 17ae2eb..21b71dd 100644
42912--- a/drivers/hwmon/iio_hwmon.c
42913+++ b/drivers/hwmon/iio_hwmon.c
42914@@ -61,7 +61,7 @@ static int iio_hwmon_probe(struct platform_device *pdev)
42915 {
42916 struct device *dev = &pdev->dev;
42917 struct iio_hwmon_state *st;
42918- struct sensor_device_attribute *a;
42919+ sensor_device_attribute_no_const *a;
42920 int ret, i;
42921 int in_i = 1, temp_i = 1, curr_i = 1, humidity_i = 1;
42922 enum iio_chan_type type;
42923diff --git a/drivers/hwmon/nct6683.c b/drivers/hwmon/nct6683.c
42924index 37f0170..414ec2c 100644
42925--- a/drivers/hwmon/nct6683.c
42926+++ b/drivers/hwmon/nct6683.c
42927@@ -397,11 +397,11 @@ static struct attribute_group *
42928 nct6683_create_attr_group(struct device *dev, struct sensor_template_group *tg,
42929 int repeat)
42930 {
42931- struct sensor_device_attribute_2 *a2;
42932- struct sensor_device_attribute *a;
42933+ sensor_device_attribute_2_no_const *a2;
42934+ sensor_device_attribute_no_const *a;
42935 struct sensor_device_template **t;
42936 struct sensor_device_attr_u *su;
42937- struct attribute_group *group;
42938+ attribute_group_no_const *group;
42939 struct attribute **attrs;
42940 int i, j, count;
42941
42942diff --git a/drivers/hwmon/nct6775.c b/drivers/hwmon/nct6775.c
42943index 0773930..6f04305 100644
42944--- a/drivers/hwmon/nct6775.c
42945+++ b/drivers/hwmon/nct6775.c
42946@@ -952,10 +952,10 @@ static struct attribute_group *
42947 nct6775_create_attr_group(struct device *dev, struct sensor_template_group *tg,
42948 int repeat)
42949 {
42950- struct attribute_group *group;
42951+ attribute_group_no_const *group;
42952 struct sensor_device_attr_u *su;
42953- struct sensor_device_attribute *a;
42954- struct sensor_device_attribute_2 *a2;
42955+ sensor_device_attribute_no_const *a;
42956+ sensor_device_attribute_2_no_const *a2;
42957 struct attribute **attrs;
42958 struct sensor_device_template **t;
42959 int i, count;
42960diff --git a/drivers/hwmon/pmbus/pmbus_core.c b/drivers/hwmon/pmbus/pmbus_core.c
42961index f2e47c7..45d7941 100644
42962--- a/drivers/hwmon/pmbus/pmbus_core.c
42963+++ b/drivers/hwmon/pmbus/pmbus_core.c
42964@@ -816,7 +816,7 @@ static int pmbus_add_attribute(struct pmbus_data *data, struct attribute *attr)
42965 return 0;
42966 }
42967
42968-static void pmbus_dev_attr_init(struct device_attribute *dev_attr,
42969+static void pmbus_dev_attr_init(device_attribute_no_const *dev_attr,
42970 const char *name,
42971 umode_t mode,
42972 ssize_t (*show)(struct device *dev,
42973@@ -833,7 +833,7 @@ static void pmbus_dev_attr_init(struct device_attribute *dev_attr,
42974 dev_attr->store = store;
42975 }
42976
42977-static void pmbus_attr_init(struct sensor_device_attribute *a,
42978+static void pmbus_attr_init(sensor_device_attribute_no_const *a,
42979 const char *name,
42980 umode_t mode,
42981 ssize_t (*show)(struct device *dev,
42982@@ -855,7 +855,7 @@ static int pmbus_add_boolean(struct pmbus_data *data,
42983 u16 reg, u8 mask)
42984 {
42985 struct pmbus_boolean *boolean;
42986- struct sensor_device_attribute *a;
42987+ sensor_device_attribute_no_const *a;
42988
42989 boolean = devm_kzalloc(data->dev, sizeof(*boolean), GFP_KERNEL);
42990 if (!boolean)
42991@@ -880,7 +880,7 @@ static struct pmbus_sensor *pmbus_add_sensor(struct pmbus_data *data,
42992 bool update, bool readonly)
42993 {
42994 struct pmbus_sensor *sensor;
42995- struct device_attribute *a;
42996+ device_attribute_no_const *a;
42997
42998 sensor = devm_kzalloc(data->dev, sizeof(*sensor), GFP_KERNEL);
42999 if (!sensor)
43000@@ -911,7 +911,7 @@ static int pmbus_add_label(struct pmbus_data *data,
43001 const char *lstring, int index)
43002 {
43003 struct pmbus_label *label;
43004- struct device_attribute *a;
43005+ device_attribute_no_const *a;
43006
43007 label = devm_kzalloc(data->dev, sizeof(*label), GFP_KERNEL);
43008 if (!label)
43009diff --git a/drivers/hwmon/sht15.c b/drivers/hwmon/sht15.c
43010index d4f0935..7420593 100644
43011--- a/drivers/hwmon/sht15.c
43012+++ b/drivers/hwmon/sht15.c
43013@@ -169,7 +169,7 @@ struct sht15_data {
43014 int supply_uv;
43015 bool supply_uv_valid;
43016 struct work_struct update_supply_work;
43017- atomic_t interrupt_handled;
43018+ atomic_unchecked_t interrupt_handled;
43019 };
43020
43021 /**
43022@@ -542,13 +542,13 @@ static int sht15_measurement(struct sht15_data *data,
43023 ret = gpio_direction_input(data->pdata->gpio_data);
43024 if (ret)
43025 return ret;
43026- atomic_set(&data->interrupt_handled, 0);
43027+ atomic_set_unchecked(&data->interrupt_handled, 0);
43028
43029 enable_irq(gpio_to_irq(data->pdata->gpio_data));
43030 if (gpio_get_value(data->pdata->gpio_data) == 0) {
43031 disable_irq_nosync(gpio_to_irq(data->pdata->gpio_data));
43032 /* Only relevant if the interrupt hasn't occurred. */
43033- if (!atomic_read(&data->interrupt_handled))
43034+ if (!atomic_read_unchecked(&data->interrupt_handled))
43035 schedule_work(&data->read_work);
43036 }
43037 ret = wait_event_timeout(data->wait_queue,
43038@@ -820,7 +820,7 @@ static irqreturn_t sht15_interrupt_fired(int irq, void *d)
43039
43040 /* First disable the interrupt */
43041 disable_irq_nosync(irq);
43042- atomic_inc(&data->interrupt_handled);
43043+ atomic_inc_unchecked(&data->interrupt_handled);
43044 /* Then schedule a reading work struct */
43045 if (data->state != SHT15_READING_NOTHING)
43046 schedule_work(&data->read_work);
43047@@ -842,11 +842,11 @@ static void sht15_bh_read_data(struct work_struct *work_s)
43048 * If not, then start the interrupt again - care here as could
43049 * have gone low in meantime so verify it hasn't!
43050 */
43051- atomic_set(&data->interrupt_handled, 0);
43052+ atomic_set_unchecked(&data->interrupt_handled, 0);
43053 enable_irq(gpio_to_irq(data->pdata->gpio_data));
43054 /* If still not occurred or another handler was scheduled */
43055 if (gpio_get_value(data->pdata->gpio_data)
43056- || atomic_read(&data->interrupt_handled))
43057+ || atomic_read_unchecked(&data->interrupt_handled))
43058 return;
43059 }
43060
43061diff --git a/drivers/hwmon/via-cputemp.c b/drivers/hwmon/via-cputemp.c
43062index ac91c07..8e69663 100644
43063--- a/drivers/hwmon/via-cputemp.c
43064+++ b/drivers/hwmon/via-cputemp.c
43065@@ -295,7 +295,7 @@ static int via_cputemp_cpu_callback(struct notifier_block *nfb,
43066 return NOTIFY_OK;
43067 }
43068
43069-static struct notifier_block via_cputemp_cpu_notifier __refdata = {
43070+static struct notifier_block via_cputemp_cpu_notifier = {
43071 .notifier_call = via_cputemp_cpu_callback,
43072 };
43073
43074diff --git a/drivers/i2c/busses/i2c-amd756-s4882.c b/drivers/i2c/busses/i2c-amd756-s4882.c
43075index 65e3240..e6c511d 100644
43076--- a/drivers/i2c/busses/i2c-amd756-s4882.c
43077+++ b/drivers/i2c/busses/i2c-amd756-s4882.c
43078@@ -39,7 +39,7 @@
43079 extern struct i2c_adapter amd756_smbus;
43080
43081 static struct i2c_adapter *s4882_adapter;
43082-static struct i2c_algorithm *s4882_algo;
43083+static i2c_algorithm_no_const *s4882_algo;
43084
43085 /* Wrapper access functions for multiplexed SMBus */
43086 static DEFINE_MUTEX(amd756_lock);
43087diff --git a/drivers/i2c/busses/i2c-diolan-u2c.c b/drivers/i2c/busses/i2c-diolan-u2c.c
43088index b19a310..d6eece0 100644
43089--- a/drivers/i2c/busses/i2c-diolan-u2c.c
43090+++ b/drivers/i2c/busses/i2c-diolan-u2c.c
43091@@ -98,7 +98,7 @@ MODULE_PARM_DESC(frequency, "I2C clock frequency in hertz");
43092 /* usb layer */
43093
43094 /* Send command to device, and get response. */
43095-static int diolan_usb_transfer(struct i2c_diolan_u2c *dev)
43096+static int __intentional_overflow(-1) diolan_usb_transfer(struct i2c_diolan_u2c *dev)
43097 {
43098 int ret = 0;
43099 int actual;
43100diff --git a/drivers/i2c/busses/i2c-nforce2-s4985.c b/drivers/i2c/busses/i2c-nforce2-s4985.c
43101index 88eda09..cf40434 100644
43102--- a/drivers/i2c/busses/i2c-nforce2-s4985.c
43103+++ b/drivers/i2c/busses/i2c-nforce2-s4985.c
43104@@ -37,7 +37,7 @@
43105 extern struct i2c_adapter *nforce2_smbus;
43106
43107 static struct i2c_adapter *s4985_adapter;
43108-static struct i2c_algorithm *s4985_algo;
43109+static i2c_algorithm_no_const *s4985_algo;
43110
43111 /* Wrapper access functions for multiplexed SMBus */
43112 static DEFINE_MUTEX(nforce2_lock);
43113diff --git a/drivers/i2c/i2c-dev.c b/drivers/i2c/i2c-dev.c
43114index 71c7a39..71dd3e0 100644
43115--- a/drivers/i2c/i2c-dev.c
43116+++ b/drivers/i2c/i2c-dev.c
43117@@ -272,7 +272,7 @@ static noinline int i2cdev_ioctl_rdrw(struct i2c_client *client,
43118 break;
43119 }
43120
43121- data_ptrs[i] = (u8 __user *)rdwr_pa[i].buf;
43122+ data_ptrs[i] = (u8 __force_user *)rdwr_pa[i].buf;
43123 rdwr_pa[i].buf = memdup_user(data_ptrs[i], rdwr_pa[i].len);
43124 if (IS_ERR(rdwr_pa[i].buf)) {
43125 res = PTR_ERR(rdwr_pa[i].buf);
43126diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
43127index 0b510ba..4fbb5085 100644
43128--- a/drivers/ide/ide-cd.c
43129+++ b/drivers/ide/ide-cd.c
43130@@ -768,7 +768,7 @@ static void cdrom_do_block_pc(ide_drive_t *drive, struct request *rq)
43131 alignment = queue_dma_alignment(q) | q->dma_pad_mask;
43132 if ((unsigned long)buf & alignment
43133 || blk_rq_bytes(rq) & q->dma_pad_mask
43134- || object_is_on_stack(buf))
43135+ || object_starts_on_stack(buf))
43136 drive->dma = 0;
43137 }
43138 }
43139diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
43140index 4df97f6..c751151 100644
43141--- a/drivers/iio/industrialio-core.c
43142+++ b/drivers/iio/industrialio-core.c
43143@@ -570,7 +570,7 @@ static ssize_t iio_write_channel_info(struct device *dev,
43144 }
43145
43146 static
43147-int __iio_device_attr_init(struct device_attribute *dev_attr,
43148+int __iio_device_attr_init(device_attribute_no_const *dev_attr,
43149 const char *postfix,
43150 struct iio_chan_spec const *chan,
43151 ssize_t (*readfunc)(struct device *dev,
43152diff --git a/drivers/infiniband/core/cm.c b/drivers/infiniband/core/cm.c
43153index e28a494..f7c2671 100644
43154--- a/drivers/infiniband/core/cm.c
43155+++ b/drivers/infiniband/core/cm.c
43156@@ -115,7 +115,7 @@ static char const counter_group_names[CM_COUNTER_GROUPS]
43157
43158 struct cm_counter_group {
43159 struct kobject obj;
43160- atomic_long_t counter[CM_ATTR_COUNT];
43161+ atomic_long_unchecked_t counter[CM_ATTR_COUNT];
43162 };
43163
43164 struct cm_counter_attribute {
43165@@ -1398,7 +1398,7 @@ static void cm_dup_req_handler(struct cm_work *work,
43166 struct ib_mad_send_buf *msg = NULL;
43167 int ret;
43168
43169- atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
43170+ atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
43171 counter[CM_REQ_COUNTER]);
43172
43173 /* Quick state check to discard duplicate REQs. */
43174@@ -1785,7 +1785,7 @@ static void cm_dup_rep_handler(struct cm_work *work)
43175 if (!cm_id_priv)
43176 return;
43177
43178- atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
43179+ atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
43180 counter[CM_REP_COUNTER]);
43181 ret = cm_alloc_response_msg(work->port, work->mad_recv_wc, &msg);
43182 if (ret)
43183@@ -1952,7 +1952,7 @@ static int cm_rtu_handler(struct cm_work *work)
43184 if (cm_id_priv->id.state != IB_CM_REP_SENT &&
43185 cm_id_priv->id.state != IB_CM_MRA_REP_RCVD) {
43186 spin_unlock_irq(&cm_id_priv->lock);
43187- atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
43188+ atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
43189 counter[CM_RTU_COUNTER]);
43190 goto out;
43191 }
43192@@ -2135,7 +2135,7 @@ static int cm_dreq_handler(struct cm_work *work)
43193 cm_id_priv = cm_acquire_id(dreq_msg->remote_comm_id,
43194 dreq_msg->local_comm_id);
43195 if (!cm_id_priv) {
43196- atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
43197+ atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
43198 counter[CM_DREQ_COUNTER]);
43199 cm_issue_drep(work->port, work->mad_recv_wc);
43200 return -EINVAL;
43201@@ -2160,7 +2160,7 @@ static int cm_dreq_handler(struct cm_work *work)
43202 case IB_CM_MRA_REP_RCVD:
43203 break;
43204 case IB_CM_TIMEWAIT:
43205- atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
43206+ atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
43207 counter[CM_DREQ_COUNTER]);
43208 if (cm_alloc_response_msg(work->port, work->mad_recv_wc, &msg))
43209 goto unlock;
43210@@ -2174,7 +2174,7 @@ static int cm_dreq_handler(struct cm_work *work)
43211 cm_free_msg(msg);
43212 goto deref;
43213 case IB_CM_DREQ_RCVD:
43214- atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
43215+ atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
43216 counter[CM_DREQ_COUNTER]);
43217 goto unlock;
43218 default:
43219@@ -2541,7 +2541,7 @@ static int cm_mra_handler(struct cm_work *work)
43220 ib_modify_mad(cm_id_priv->av.port->mad_agent,
43221 cm_id_priv->msg, timeout)) {
43222 if (cm_id_priv->id.lap_state == IB_CM_MRA_LAP_RCVD)
43223- atomic_long_inc(&work->port->
43224+ atomic_long_inc_unchecked(&work->port->
43225 counter_group[CM_RECV_DUPLICATES].
43226 counter[CM_MRA_COUNTER]);
43227 goto out;
43228@@ -2550,7 +2550,7 @@ static int cm_mra_handler(struct cm_work *work)
43229 break;
43230 case IB_CM_MRA_REQ_RCVD:
43231 case IB_CM_MRA_REP_RCVD:
43232- atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
43233+ atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
43234 counter[CM_MRA_COUNTER]);
43235 /* fall through */
43236 default:
43237@@ -2712,7 +2712,7 @@ static int cm_lap_handler(struct cm_work *work)
43238 case IB_CM_LAP_IDLE:
43239 break;
43240 case IB_CM_MRA_LAP_SENT:
43241- atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
43242+ atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
43243 counter[CM_LAP_COUNTER]);
43244 if (cm_alloc_response_msg(work->port, work->mad_recv_wc, &msg))
43245 goto unlock;
43246@@ -2728,7 +2728,7 @@ static int cm_lap_handler(struct cm_work *work)
43247 cm_free_msg(msg);
43248 goto deref;
43249 case IB_CM_LAP_RCVD:
43250- atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
43251+ atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
43252 counter[CM_LAP_COUNTER]);
43253 goto unlock;
43254 default:
43255@@ -3012,7 +3012,7 @@ static int cm_sidr_req_handler(struct cm_work *work)
43256 cur_cm_id_priv = cm_insert_remote_sidr(cm_id_priv);
43257 if (cur_cm_id_priv) {
43258 spin_unlock_irq(&cm.lock);
43259- atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
43260+ atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
43261 counter[CM_SIDR_REQ_COUNTER]);
43262 goto out; /* Duplicate message. */
43263 }
43264@@ -3224,10 +3224,10 @@ static void cm_send_handler(struct ib_mad_agent *mad_agent,
43265 if (!msg->context[0] && (attr_index != CM_REJ_COUNTER))
43266 msg->retries = 1;
43267
43268- atomic_long_add(1 + msg->retries,
43269+ atomic_long_add_unchecked(1 + msg->retries,
43270 &port->counter_group[CM_XMIT].counter[attr_index]);
43271 if (msg->retries)
43272- atomic_long_add(msg->retries,
43273+ atomic_long_add_unchecked(msg->retries,
43274 &port->counter_group[CM_XMIT_RETRIES].
43275 counter[attr_index]);
43276
43277@@ -3437,7 +3437,7 @@ static void cm_recv_handler(struct ib_mad_agent *mad_agent,
43278 }
43279
43280 attr_id = be16_to_cpu(mad_recv_wc->recv_buf.mad->mad_hdr.attr_id);
43281- atomic_long_inc(&port->counter_group[CM_RECV].
43282+ atomic_long_inc_unchecked(&port->counter_group[CM_RECV].
43283 counter[attr_id - CM_ATTR_ID_OFFSET]);
43284
43285 work = kmalloc(sizeof *work + sizeof(struct ib_sa_path_rec) * paths,
43286@@ -3668,7 +3668,7 @@ static ssize_t cm_show_counter(struct kobject *obj, struct attribute *attr,
43287 cm_attr = container_of(attr, struct cm_counter_attribute, attr);
43288
43289 return sprintf(buf, "%ld\n",
43290- atomic_long_read(&group->counter[cm_attr->index]));
43291+ atomic_long_read_unchecked(&group->counter[cm_attr->index]));
43292 }
43293
43294 static const struct sysfs_ops cm_counter_ops = {
43295diff --git a/drivers/infiniband/core/fmr_pool.c b/drivers/infiniband/core/fmr_pool.c
43296index 9f5ad7c..588cd84 100644
43297--- a/drivers/infiniband/core/fmr_pool.c
43298+++ b/drivers/infiniband/core/fmr_pool.c
43299@@ -98,8 +98,8 @@ struct ib_fmr_pool {
43300
43301 struct task_struct *thread;
43302
43303- atomic_t req_ser;
43304- atomic_t flush_ser;
43305+ atomic_unchecked_t req_ser;
43306+ atomic_unchecked_t flush_ser;
43307
43308 wait_queue_head_t force_wait;
43309 };
43310@@ -179,10 +179,10 @@ static int ib_fmr_cleanup_thread(void *pool_ptr)
43311 struct ib_fmr_pool *pool = pool_ptr;
43312
43313 do {
43314- if (atomic_read(&pool->flush_ser) - atomic_read(&pool->req_ser) < 0) {
43315+ if (atomic_read_unchecked(&pool->flush_ser) - atomic_read_unchecked(&pool->req_ser) < 0) {
43316 ib_fmr_batch_release(pool);
43317
43318- atomic_inc(&pool->flush_ser);
43319+ atomic_inc_unchecked(&pool->flush_ser);
43320 wake_up_interruptible(&pool->force_wait);
43321
43322 if (pool->flush_function)
43323@@ -190,7 +190,7 @@ static int ib_fmr_cleanup_thread(void *pool_ptr)
43324 }
43325
43326 set_current_state(TASK_INTERRUPTIBLE);
43327- if (atomic_read(&pool->flush_ser) - atomic_read(&pool->req_ser) >= 0 &&
43328+ if (atomic_read_unchecked(&pool->flush_ser) - atomic_read_unchecked(&pool->req_ser) >= 0 &&
43329 !kthread_should_stop())
43330 schedule();
43331 __set_current_state(TASK_RUNNING);
43332@@ -282,8 +282,8 @@ struct ib_fmr_pool *ib_create_fmr_pool(struct ib_pd *pd,
43333 pool->dirty_watermark = params->dirty_watermark;
43334 pool->dirty_len = 0;
43335 spin_lock_init(&pool->pool_lock);
43336- atomic_set(&pool->req_ser, 0);
43337- atomic_set(&pool->flush_ser, 0);
43338+ atomic_set_unchecked(&pool->req_ser, 0);
43339+ atomic_set_unchecked(&pool->flush_ser, 0);
43340 init_waitqueue_head(&pool->force_wait);
43341
43342 pool->thread = kthread_run(ib_fmr_cleanup_thread,
43343@@ -411,11 +411,11 @@ int ib_flush_fmr_pool(struct ib_fmr_pool *pool)
43344 }
43345 spin_unlock_irq(&pool->pool_lock);
43346
43347- serial = atomic_inc_return(&pool->req_ser);
43348+ serial = atomic_inc_return_unchecked(&pool->req_ser);
43349 wake_up_process(pool->thread);
43350
43351 if (wait_event_interruptible(pool->force_wait,
43352- atomic_read(&pool->flush_ser) - serial >= 0))
43353+ atomic_read_unchecked(&pool->flush_ser) - serial >= 0))
43354 return -EINTR;
43355
43356 return 0;
43357@@ -525,7 +525,7 @@ int ib_fmr_pool_unmap(struct ib_pool_fmr *fmr)
43358 } else {
43359 list_add_tail(&fmr->list, &pool->dirty_list);
43360 if (++pool->dirty_len >= pool->dirty_watermark) {
43361- atomic_inc(&pool->req_ser);
43362+ atomic_inc_unchecked(&pool->req_ser);
43363 wake_up_process(pool->thread);
43364 }
43365 }
43366diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c
43367index a9f0489..27a161b 100644
43368--- a/drivers/infiniband/core/uverbs_cmd.c
43369+++ b/drivers/infiniband/core/uverbs_cmd.c
43370@@ -951,6 +951,9 @@ ssize_t ib_uverbs_reg_mr(struct ib_uverbs_file *file,
43371 if (copy_from_user(&cmd, buf, sizeof cmd))
43372 return -EFAULT;
43373
43374+ if (!access_ok_noprefault(VERIFY_READ, cmd.start, cmd.length))
43375+ return -EFAULT;
43376+
43377 INIT_UDATA(&udata, buf + sizeof cmd,
43378 (unsigned long) cmd.response + sizeof resp,
43379 in_len - sizeof cmd, out_len - sizeof resp);
43380diff --git a/drivers/infiniband/hw/cxgb4/mem.c b/drivers/infiniband/hw/cxgb4/mem.c
43381index 6791fd1..78bdcdf 100644
43382--- a/drivers/infiniband/hw/cxgb4/mem.c
43383+++ b/drivers/infiniband/hw/cxgb4/mem.c
43384@@ -256,7 +256,7 @@ static int write_tpt_entry(struct c4iw_rdev *rdev, u32 reset_tpt_entry,
43385 int err;
43386 struct fw_ri_tpte tpt;
43387 u32 stag_idx;
43388- static atomic_t key;
43389+ static atomic_unchecked_t key;
43390
43391 if (c4iw_fatal_error(rdev))
43392 return -EIO;
43393@@ -277,7 +277,7 @@ static int write_tpt_entry(struct c4iw_rdev *rdev, u32 reset_tpt_entry,
43394 if (rdev->stats.stag.cur > rdev->stats.stag.max)
43395 rdev->stats.stag.max = rdev->stats.stag.cur;
43396 mutex_unlock(&rdev->stats.lock);
43397- *stag = (stag_idx << 8) | (atomic_inc_return(&key) & 0xff);
43398+ *stag = (stag_idx << 8) | (atomic_inc_return_unchecked(&key) & 0xff);
43399 }
43400 PDBG("%s stag_state 0x%0x type 0x%0x pdid 0x%0x, stag_idx 0x%x\n",
43401 __func__, stag_state, type, pdid, stag_idx);
43402diff --git a/drivers/infiniband/hw/ipath/ipath_rc.c b/drivers/infiniband/hw/ipath/ipath_rc.c
43403index 79b3dbc..96e5fcc 100644
43404--- a/drivers/infiniband/hw/ipath/ipath_rc.c
43405+++ b/drivers/infiniband/hw/ipath/ipath_rc.c
43406@@ -1868,7 +1868,7 @@ void ipath_rc_rcv(struct ipath_ibdev *dev, struct ipath_ib_header *hdr,
43407 struct ib_atomic_eth *ateth;
43408 struct ipath_ack_entry *e;
43409 u64 vaddr;
43410- atomic64_t *maddr;
43411+ atomic64_unchecked_t *maddr;
43412 u64 sdata;
43413 u32 rkey;
43414 u8 next;
43415@@ -1903,11 +1903,11 @@ void ipath_rc_rcv(struct ipath_ibdev *dev, struct ipath_ib_header *hdr,
43416 IB_ACCESS_REMOTE_ATOMIC)))
43417 goto nack_acc_unlck;
43418 /* Perform atomic OP and save result. */
43419- maddr = (atomic64_t *) qp->r_sge.sge.vaddr;
43420+ maddr = (atomic64_unchecked_t *) qp->r_sge.sge.vaddr;
43421 sdata = be64_to_cpu(ateth->swap_data);
43422 e = &qp->s_ack_queue[qp->r_head_ack_queue];
43423 e->atomic_data = (opcode == OP(FETCH_ADD)) ?
43424- (u64) atomic64_add_return(sdata, maddr) - sdata :
43425+ (u64) atomic64_add_return_unchecked(sdata, maddr) - sdata :
43426 (u64) cmpxchg((u64 *) qp->r_sge.sge.vaddr,
43427 be64_to_cpu(ateth->compare_data),
43428 sdata);
43429diff --git a/drivers/infiniband/hw/ipath/ipath_ruc.c b/drivers/infiniband/hw/ipath/ipath_ruc.c
43430index 1f95bba..9530f87 100644
43431--- a/drivers/infiniband/hw/ipath/ipath_ruc.c
43432+++ b/drivers/infiniband/hw/ipath/ipath_ruc.c
43433@@ -266,7 +266,7 @@ static void ipath_ruc_loopback(struct ipath_qp *sqp)
43434 unsigned long flags;
43435 struct ib_wc wc;
43436 u64 sdata;
43437- atomic64_t *maddr;
43438+ atomic64_unchecked_t *maddr;
43439 enum ib_wc_status send_status;
43440
43441 /*
43442@@ -382,11 +382,11 @@ again:
43443 IB_ACCESS_REMOTE_ATOMIC)))
43444 goto acc_err;
43445 /* Perform atomic OP and save result. */
43446- maddr = (atomic64_t *) qp->r_sge.sge.vaddr;
43447+ maddr = (atomic64_unchecked_t *) qp->r_sge.sge.vaddr;
43448 sdata = wqe->wr.wr.atomic.compare_add;
43449 *(u64 *) sqp->s_sge.sge.vaddr =
43450 (wqe->wr.opcode == IB_WR_ATOMIC_FETCH_AND_ADD) ?
43451- (u64) atomic64_add_return(sdata, maddr) - sdata :
43452+ (u64) atomic64_add_return_unchecked(sdata, maddr) - sdata :
43453 (u64) cmpxchg((u64 *) qp->r_sge.sge.vaddr,
43454 sdata, wqe->wr.wr.atomic.swap);
43455 goto send_comp;
43456diff --git a/drivers/infiniband/hw/mlx4/mad.c b/drivers/infiniband/hw/mlx4/mad.c
43457index 5904026..f1c30e5 100644
43458--- a/drivers/infiniband/hw/mlx4/mad.c
43459+++ b/drivers/infiniband/hw/mlx4/mad.c
43460@@ -106,7 +106,7 @@ __be64 mlx4_ib_gen_node_guid(void)
43461
43462 __be64 mlx4_ib_get_new_demux_tid(struct mlx4_ib_demux_ctx *ctx)
43463 {
43464- return cpu_to_be64(atomic_inc_return(&ctx->tid)) |
43465+ return cpu_to_be64(atomic_inc_return_unchecked(&ctx->tid)) |
43466 cpu_to_be64(0xff00000000000000LL);
43467 }
43468
43469diff --git a/drivers/infiniband/hw/mlx4/mcg.c b/drivers/infiniband/hw/mlx4/mcg.c
43470index ed327e6..ca1739e0 100644
43471--- a/drivers/infiniband/hw/mlx4/mcg.c
43472+++ b/drivers/infiniband/hw/mlx4/mcg.c
43473@@ -1041,7 +1041,7 @@ int mlx4_ib_mcg_port_init(struct mlx4_ib_demux_ctx *ctx)
43474 {
43475 char name[20];
43476
43477- atomic_set(&ctx->tid, 0);
43478+ atomic_set_unchecked(&ctx->tid, 0);
43479 sprintf(name, "mlx4_ib_mcg%d", ctx->port);
43480 ctx->mcg_wq = create_singlethread_workqueue(name);
43481 if (!ctx->mcg_wq)
43482diff --git a/drivers/infiniband/hw/mlx4/mlx4_ib.h b/drivers/infiniband/hw/mlx4/mlx4_ib.h
43483index f829fd9..1a8d436 100644
43484--- a/drivers/infiniband/hw/mlx4/mlx4_ib.h
43485+++ b/drivers/infiniband/hw/mlx4/mlx4_ib.h
43486@@ -439,7 +439,7 @@ struct mlx4_ib_demux_ctx {
43487 struct list_head mcg_mgid0_list;
43488 struct workqueue_struct *mcg_wq;
43489 struct mlx4_ib_demux_pv_ctx **tun;
43490- atomic_t tid;
43491+ atomic_unchecked_t tid;
43492 int flushing; /* flushing the work queue */
43493 };
43494
43495diff --git a/drivers/infiniband/hw/mthca/mthca_cmd.c b/drivers/infiniband/hw/mthca/mthca_cmd.c
43496index 9d3e5c1..6f166df 100644
43497--- a/drivers/infiniband/hw/mthca/mthca_cmd.c
43498+++ b/drivers/infiniband/hw/mthca/mthca_cmd.c
43499@@ -772,7 +772,7 @@ static void mthca_setup_cmd_doorbells(struct mthca_dev *dev, u64 base)
43500 mthca_dbg(dev, "Mapped doorbell page for posting FW commands\n");
43501 }
43502
43503-int mthca_QUERY_FW(struct mthca_dev *dev)
43504+int __intentional_overflow(-1) mthca_QUERY_FW(struct mthca_dev *dev)
43505 {
43506 struct mthca_mailbox *mailbox;
43507 u32 *outbox;
43508@@ -1612,7 +1612,7 @@ int mthca_HW2SW_MPT(struct mthca_dev *dev, struct mthca_mailbox *mailbox,
43509 CMD_TIME_CLASS_B);
43510 }
43511
43512-int mthca_WRITE_MTT(struct mthca_dev *dev, struct mthca_mailbox *mailbox,
43513+int __intentional_overflow(-1) mthca_WRITE_MTT(struct mthca_dev *dev, struct mthca_mailbox *mailbox,
43514 int num_mtt)
43515 {
43516 return mthca_cmd(dev, mailbox->dma, num_mtt, 0, CMD_WRITE_MTT,
43517@@ -1634,7 +1634,7 @@ int mthca_MAP_EQ(struct mthca_dev *dev, u64 event_mask, int unmap,
43518 0, CMD_MAP_EQ, CMD_TIME_CLASS_B);
43519 }
43520
43521-int mthca_SW2HW_EQ(struct mthca_dev *dev, struct mthca_mailbox *mailbox,
43522+int __intentional_overflow(-1) mthca_SW2HW_EQ(struct mthca_dev *dev, struct mthca_mailbox *mailbox,
43523 int eq_num)
43524 {
43525 return mthca_cmd(dev, mailbox->dma, eq_num, 0, CMD_SW2HW_EQ,
43526@@ -1857,7 +1857,7 @@ int mthca_CONF_SPECIAL_QP(struct mthca_dev *dev, int type, u32 qpn)
43527 CMD_TIME_CLASS_B);
43528 }
43529
43530-int mthca_MAD_IFC(struct mthca_dev *dev, int ignore_mkey, int ignore_bkey,
43531+int __intentional_overflow(-1) mthca_MAD_IFC(struct mthca_dev *dev, int ignore_mkey, int ignore_bkey,
43532 int port, struct ib_wc *in_wc, struct ib_grh *in_grh,
43533 void *in_mad, void *response_mad)
43534 {
43535diff --git a/drivers/infiniband/hw/mthca/mthca_main.c b/drivers/infiniband/hw/mthca/mthca_main.c
43536index ded76c1..0cf0a08 100644
43537--- a/drivers/infiniband/hw/mthca/mthca_main.c
43538+++ b/drivers/infiniband/hw/mthca/mthca_main.c
43539@@ -692,7 +692,7 @@ err_close:
43540 return err;
43541 }
43542
43543-static int mthca_setup_hca(struct mthca_dev *dev)
43544+static int __intentional_overflow(-1) mthca_setup_hca(struct mthca_dev *dev)
43545 {
43546 int err;
43547
43548diff --git a/drivers/infiniband/hw/mthca/mthca_mr.c b/drivers/infiniband/hw/mthca/mthca_mr.c
43549index ed9a989..6aa5dc2 100644
43550--- a/drivers/infiniband/hw/mthca/mthca_mr.c
43551+++ b/drivers/infiniband/hw/mthca/mthca_mr.c
43552@@ -81,7 +81,7 @@ struct mthca_mpt_entry {
43553 * through the bitmaps)
43554 */
43555
43556-static u32 mthca_buddy_alloc(struct mthca_buddy *buddy, int order)
43557+static u32 __intentional_overflow(-1) mthca_buddy_alloc(struct mthca_buddy *buddy, int order)
43558 {
43559 int o;
43560 int m;
43561@@ -426,7 +426,7 @@ static inline u32 adjust_key(struct mthca_dev *dev, u32 key)
43562 return key;
43563 }
43564
43565-int mthca_mr_alloc(struct mthca_dev *dev, u32 pd, int buffer_size_shift,
43566+int __intentional_overflow(-1) mthca_mr_alloc(struct mthca_dev *dev, u32 pd, int buffer_size_shift,
43567 u64 iova, u64 total_size, u32 access, struct mthca_mr *mr)
43568 {
43569 struct mthca_mailbox *mailbox;
43570@@ -516,7 +516,7 @@ int mthca_mr_alloc_notrans(struct mthca_dev *dev, u32 pd,
43571 return mthca_mr_alloc(dev, pd, 12, 0, ~0ULL, access, mr);
43572 }
43573
43574-int mthca_mr_alloc_phys(struct mthca_dev *dev, u32 pd,
43575+int __intentional_overflow(-1) mthca_mr_alloc_phys(struct mthca_dev *dev, u32 pd,
43576 u64 *buffer_list, int buffer_size_shift,
43577 int list_len, u64 iova, u64 total_size,
43578 u32 access, struct mthca_mr *mr)
43579diff --git a/drivers/infiniband/hw/mthca/mthca_provider.c b/drivers/infiniband/hw/mthca/mthca_provider.c
43580index 415f8e1..e34214e 100644
43581--- a/drivers/infiniband/hw/mthca/mthca_provider.c
43582+++ b/drivers/infiniband/hw/mthca/mthca_provider.c
43583@@ -764,7 +764,7 @@ unlock:
43584 return 0;
43585 }
43586
43587-static int mthca_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata)
43588+static int __intentional_overflow(-1) mthca_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata)
43589 {
43590 struct mthca_dev *dev = to_mdev(ibcq->device);
43591 struct mthca_cq *cq = to_mcq(ibcq);
43592diff --git a/drivers/infiniband/hw/nes/nes.c b/drivers/infiniband/hw/nes/nes.c
43593index 3b2a6dc..bce26ff 100644
43594--- a/drivers/infiniband/hw/nes/nes.c
43595+++ b/drivers/infiniband/hw/nes/nes.c
43596@@ -97,7 +97,7 @@ MODULE_PARM_DESC(limit_maxrdreqsz, "Limit max read request size to 256 Bytes");
43597 LIST_HEAD(nes_adapter_list);
43598 static LIST_HEAD(nes_dev_list);
43599
43600-atomic_t qps_destroyed;
43601+atomic_unchecked_t qps_destroyed;
43602
43603 static unsigned int ee_flsh_adapter;
43604 static unsigned int sysfs_nonidx_addr;
43605@@ -278,7 +278,7 @@ static void nes_cqp_rem_ref_callback(struct nes_device *nesdev, struct nes_cqp_r
43606 struct nes_qp *nesqp = cqp_request->cqp_callback_pointer;
43607 struct nes_adapter *nesadapter = nesdev->nesadapter;
43608
43609- atomic_inc(&qps_destroyed);
43610+ atomic_inc_unchecked(&qps_destroyed);
43611
43612 /* Free the control structures */
43613
43614diff --git a/drivers/infiniband/hw/nes/nes.h b/drivers/infiniband/hw/nes/nes.h
43615index bd9d132..70d84f4 100644
43616--- a/drivers/infiniband/hw/nes/nes.h
43617+++ b/drivers/infiniband/hw/nes/nes.h
43618@@ -180,17 +180,17 @@ extern unsigned int nes_debug_level;
43619 extern unsigned int wqm_quanta;
43620 extern struct list_head nes_adapter_list;
43621
43622-extern atomic_t cm_connects;
43623-extern atomic_t cm_accepts;
43624-extern atomic_t cm_disconnects;
43625-extern atomic_t cm_closes;
43626-extern atomic_t cm_connecteds;
43627-extern atomic_t cm_connect_reqs;
43628-extern atomic_t cm_rejects;
43629-extern atomic_t mod_qp_timouts;
43630-extern atomic_t qps_created;
43631-extern atomic_t qps_destroyed;
43632-extern atomic_t sw_qps_destroyed;
43633+extern atomic_unchecked_t cm_connects;
43634+extern atomic_unchecked_t cm_accepts;
43635+extern atomic_unchecked_t cm_disconnects;
43636+extern atomic_unchecked_t cm_closes;
43637+extern atomic_unchecked_t cm_connecteds;
43638+extern atomic_unchecked_t cm_connect_reqs;
43639+extern atomic_unchecked_t cm_rejects;
43640+extern atomic_unchecked_t mod_qp_timouts;
43641+extern atomic_unchecked_t qps_created;
43642+extern atomic_unchecked_t qps_destroyed;
43643+extern atomic_unchecked_t sw_qps_destroyed;
43644 extern u32 mh_detected;
43645 extern u32 mh_pauses_sent;
43646 extern u32 cm_packets_sent;
43647@@ -199,16 +199,16 @@ extern u32 cm_packets_created;
43648 extern u32 cm_packets_received;
43649 extern u32 cm_packets_dropped;
43650 extern u32 cm_packets_retrans;
43651-extern atomic_t cm_listens_created;
43652-extern atomic_t cm_listens_destroyed;
43653+extern atomic_unchecked_t cm_listens_created;
43654+extern atomic_unchecked_t cm_listens_destroyed;
43655 extern u32 cm_backlog_drops;
43656-extern atomic_t cm_loopbacks;
43657-extern atomic_t cm_nodes_created;
43658-extern atomic_t cm_nodes_destroyed;
43659-extern atomic_t cm_accel_dropped_pkts;
43660-extern atomic_t cm_resets_recvd;
43661-extern atomic_t pau_qps_created;
43662-extern atomic_t pau_qps_destroyed;
43663+extern atomic_unchecked_t cm_loopbacks;
43664+extern atomic_unchecked_t cm_nodes_created;
43665+extern atomic_unchecked_t cm_nodes_destroyed;
43666+extern atomic_unchecked_t cm_accel_dropped_pkts;
43667+extern atomic_unchecked_t cm_resets_recvd;
43668+extern atomic_unchecked_t pau_qps_created;
43669+extern atomic_unchecked_t pau_qps_destroyed;
43670
43671 extern u32 int_mod_timer_init;
43672 extern u32 int_mod_cq_depth_256;
43673diff --git a/drivers/infiniband/hw/nes/nes_cm.c b/drivers/infiniband/hw/nes/nes_cm.c
43674index 6f09a72..cf4399d 100644
43675--- a/drivers/infiniband/hw/nes/nes_cm.c
43676+++ b/drivers/infiniband/hw/nes/nes_cm.c
43677@@ -69,14 +69,14 @@ u32 cm_packets_dropped;
43678 u32 cm_packets_retrans;
43679 u32 cm_packets_created;
43680 u32 cm_packets_received;
43681-atomic_t cm_listens_created;
43682-atomic_t cm_listens_destroyed;
43683+atomic_unchecked_t cm_listens_created;
43684+atomic_unchecked_t cm_listens_destroyed;
43685 u32 cm_backlog_drops;
43686-atomic_t cm_loopbacks;
43687-atomic_t cm_nodes_created;
43688-atomic_t cm_nodes_destroyed;
43689-atomic_t cm_accel_dropped_pkts;
43690-atomic_t cm_resets_recvd;
43691+atomic_unchecked_t cm_loopbacks;
43692+atomic_unchecked_t cm_nodes_created;
43693+atomic_unchecked_t cm_nodes_destroyed;
43694+atomic_unchecked_t cm_accel_dropped_pkts;
43695+atomic_unchecked_t cm_resets_recvd;
43696
43697 static inline int mini_cm_accelerated(struct nes_cm_core *, struct nes_cm_node *);
43698 static struct nes_cm_listener *mini_cm_listen(struct nes_cm_core *, struct nes_vnic *, struct nes_cm_info *);
43699@@ -135,28 +135,28 @@ static void record_ird_ord(struct nes_cm_node *, u16, u16);
43700 /* instance of function pointers for client API */
43701 /* set address of this instance to cm_core->cm_ops at cm_core alloc */
43702 static struct nes_cm_ops nes_cm_api = {
43703- mini_cm_accelerated,
43704- mini_cm_listen,
43705- mini_cm_del_listen,
43706- mini_cm_connect,
43707- mini_cm_close,
43708- mini_cm_accept,
43709- mini_cm_reject,
43710- mini_cm_recv_pkt,
43711- mini_cm_dealloc_core,
43712- mini_cm_get,
43713- mini_cm_set
43714+ .accelerated = mini_cm_accelerated,
43715+ .listen = mini_cm_listen,
43716+ .stop_listener = mini_cm_del_listen,
43717+ .connect = mini_cm_connect,
43718+ .close = mini_cm_close,
43719+ .accept = mini_cm_accept,
43720+ .reject = mini_cm_reject,
43721+ .recv_pkt = mini_cm_recv_pkt,
43722+ .destroy_cm_core = mini_cm_dealloc_core,
43723+ .get = mini_cm_get,
43724+ .set = mini_cm_set
43725 };
43726
43727 static struct nes_cm_core *g_cm_core;
43728
43729-atomic_t cm_connects;
43730-atomic_t cm_accepts;
43731-atomic_t cm_disconnects;
43732-atomic_t cm_closes;
43733-atomic_t cm_connecteds;
43734-atomic_t cm_connect_reqs;
43735-atomic_t cm_rejects;
43736+atomic_unchecked_t cm_connects;
43737+atomic_unchecked_t cm_accepts;
43738+atomic_unchecked_t cm_disconnects;
43739+atomic_unchecked_t cm_closes;
43740+atomic_unchecked_t cm_connecteds;
43741+atomic_unchecked_t cm_connect_reqs;
43742+atomic_unchecked_t cm_rejects;
43743
43744 int nes_add_ref_cm_node(struct nes_cm_node *cm_node)
43745 {
43746@@ -1436,7 +1436,7 @@ static int mini_cm_dec_refcnt_listen(struct nes_cm_core *cm_core,
43747 kfree(listener);
43748 listener = NULL;
43749 ret = 0;
43750- atomic_inc(&cm_listens_destroyed);
43751+ atomic_inc_unchecked(&cm_listens_destroyed);
43752 } else {
43753 spin_unlock_irqrestore(&cm_core->listen_list_lock, flags);
43754 }
43755@@ -1637,7 +1637,7 @@ static struct nes_cm_node *make_cm_node(struct nes_cm_core *cm_core,
43756 cm_node->rem_mac);
43757
43758 add_hte_node(cm_core, cm_node);
43759- atomic_inc(&cm_nodes_created);
43760+ atomic_inc_unchecked(&cm_nodes_created);
43761
43762 return cm_node;
43763 }
43764@@ -1698,7 +1698,7 @@ static int rem_ref_cm_node(struct nes_cm_core *cm_core,
43765 }
43766
43767 atomic_dec(&cm_core->node_cnt);
43768- atomic_inc(&cm_nodes_destroyed);
43769+ atomic_inc_unchecked(&cm_nodes_destroyed);
43770 nesqp = cm_node->nesqp;
43771 if (nesqp) {
43772 nesqp->cm_node = NULL;
43773@@ -1762,7 +1762,7 @@ static int process_options(struct nes_cm_node *cm_node, u8 *optionsloc,
43774
43775 static void drop_packet(struct sk_buff *skb)
43776 {
43777- atomic_inc(&cm_accel_dropped_pkts);
43778+ atomic_inc_unchecked(&cm_accel_dropped_pkts);
43779 dev_kfree_skb_any(skb);
43780 }
43781
43782@@ -1825,7 +1825,7 @@ static void handle_rst_pkt(struct nes_cm_node *cm_node, struct sk_buff *skb,
43783 {
43784
43785 int reset = 0; /* whether to send reset in case of err.. */
43786- atomic_inc(&cm_resets_recvd);
43787+ atomic_inc_unchecked(&cm_resets_recvd);
43788 nes_debug(NES_DBG_CM, "Received Reset, cm_node = %p, state = %u."
43789 " refcnt=%d\n", cm_node, cm_node->state,
43790 atomic_read(&cm_node->ref_count));
43791@@ -2492,7 +2492,7 @@ static struct nes_cm_node *mini_cm_connect(struct nes_cm_core *cm_core,
43792 rem_ref_cm_node(cm_node->cm_core, cm_node);
43793 return NULL;
43794 }
43795- atomic_inc(&cm_loopbacks);
43796+ atomic_inc_unchecked(&cm_loopbacks);
43797 loopbackremotenode->loopbackpartner = cm_node;
43798 loopbackremotenode->tcp_cntxt.rcv_wscale =
43799 NES_CM_DEFAULT_RCV_WND_SCALE;
43800@@ -2773,7 +2773,7 @@ static int mini_cm_recv_pkt(struct nes_cm_core *cm_core,
43801 nes_queue_mgt_skbs(skb, nesvnic, cm_node->nesqp);
43802 else {
43803 rem_ref_cm_node(cm_core, cm_node);
43804- atomic_inc(&cm_accel_dropped_pkts);
43805+ atomic_inc_unchecked(&cm_accel_dropped_pkts);
43806 dev_kfree_skb_any(skb);
43807 }
43808 break;
43809@@ -3081,7 +3081,7 @@ static int nes_cm_disconn_true(struct nes_qp *nesqp)
43810
43811 if ((cm_id) && (cm_id->event_handler)) {
43812 if (issue_disconn) {
43813- atomic_inc(&cm_disconnects);
43814+ atomic_inc_unchecked(&cm_disconnects);
43815 cm_event.event = IW_CM_EVENT_DISCONNECT;
43816 cm_event.status = disconn_status;
43817 cm_event.local_addr = cm_id->local_addr;
43818@@ -3103,7 +3103,7 @@ static int nes_cm_disconn_true(struct nes_qp *nesqp)
43819 }
43820
43821 if (issue_close) {
43822- atomic_inc(&cm_closes);
43823+ atomic_inc_unchecked(&cm_closes);
43824 nes_disconnect(nesqp, 1);
43825
43826 cm_id->provider_data = nesqp;
43827@@ -3241,7 +3241,7 @@ int nes_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
43828
43829 nes_debug(NES_DBG_CM, "QP%u, cm_node=%p, jiffies = %lu listener = %p\n",
43830 nesqp->hwqp.qp_id, cm_node, jiffies, cm_node->listener);
43831- atomic_inc(&cm_accepts);
43832+ atomic_inc_unchecked(&cm_accepts);
43833
43834 nes_debug(NES_DBG_CM, "netdev refcnt = %u.\n",
43835 netdev_refcnt_read(nesvnic->netdev));
43836@@ -3439,7 +3439,7 @@ int nes_reject(struct iw_cm_id *cm_id, const void *pdata, u8 pdata_len)
43837 struct nes_cm_core *cm_core;
43838 u8 *start_buff;
43839
43840- atomic_inc(&cm_rejects);
43841+ atomic_inc_unchecked(&cm_rejects);
43842 cm_node = (struct nes_cm_node *)cm_id->provider_data;
43843 loopback = cm_node->loopbackpartner;
43844 cm_core = cm_node->cm_core;
43845@@ -3504,7 +3504,7 @@ int nes_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
43846 ntohs(raddr->sin_port), ntohl(laddr->sin_addr.s_addr),
43847 ntohs(laddr->sin_port));
43848
43849- atomic_inc(&cm_connects);
43850+ atomic_inc_unchecked(&cm_connects);
43851 nesqp->active_conn = 1;
43852
43853 /* cache the cm_id in the qp */
43854@@ -3649,7 +3649,7 @@ int nes_create_listen(struct iw_cm_id *cm_id, int backlog)
43855 g_cm_core->api->stop_listener(g_cm_core, (void *)cm_node);
43856 return err;
43857 }
43858- atomic_inc(&cm_listens_created);
43859+ atomic_inc_unchecked(&cm_listens_created);
43860 }
43861
43862 cm_id->add_ref(cm_id);
43863@@ -3756,7 +3756,7 @@ static void cm_event_connected(struct nes_cm_event *event)
43864
43865 if (nesqp->destroyed)
43866 return;
43867- atomic_inc(&cm_connecteds);
43868+ atomic_inc_unchecked(&cm_connecteds);
43869 nes_debug(NES_DBG_CM, "QP%u attempting to connect to 0x%08X:0x%04X on"
43870 " local port 0x%04X. jiffies = %lu.\n",
43871 nesqp->hwqp.qp_id, ntohl(raddr->sin_addr.s_addr),
43872@@ -3941,7 +3941,7 @@ static void cm_event_reset(struct nes_cm_event *event)
43873
43874 cm_id->add_ref(cm_id);
43875 ret = cm_id->event_handler(cm_id, &cm_event);
43876- atomic_inc(&cm_closes);
43877+ atomic_inc_unchecked(&cm_closes);
43878 cm_event.event = IW_CM_EVENT_CLOSE;
43879 cm_event.status = 0;
43880 cm_event.provider_data = cm_id->provider_data;
43881@@ -3981,7 +3981,7 @@ static void cm_event_mpa_req(struct nes_cm_event *event)
43882 return;
43883 cm_id = cm_node->cm_id;
43884
43885- atomic_inc(&cm_connect_reqs);
43886+ atomic_inc_unchecked(&cm_connect_reqs);
43887 nes_debug(NES_DBG_CM, "cm_node = %p - cm_id = %p, jiffies = %lu\n",
43888 cm_node, cm_id, jiffies);
43889
43890@@ -4030,7 +4030,7 @@ static void cm_event_mpa_reject(struct nes_cm_event *event)
43891 return;
43892 cm_id = cm_node->cm_id;
43893
43894- atomic_inc(&cm_connect_reqs);
43895+ atomic_inc_unchecked(&cm_connect_reqs);
43896 nes_debug(NES_DBG_CM, "cm_node = %p - cm_id = %p, jiffies = %lu\n",
43897 cm_node, cm_id, jiffies);
43898
43899diff --git a/drivers/infiniband/hw/nes/nes_mgt.c b/drivers/infiniband/hw/nes/nes_mgt.c
43900index 4166452..fc952c3 100644
43901--- a/drivers/infiniband/hw/nes/nes_mgt.c
43902+++ b/drivers/infiniband/hw/nes/nes_mgt.c
43903@@ -40,8 +40,8 @@
43904 #include "nes.h"
43905 #include "nes_mgt.h"
43906
43907-atomic_t pau_qps_created;
43908-atomic_t pau_qps_destroyed;
43909+atomic_unchecked_t pau_qps_created;
43910+atomic_unchecked_t pau_qps_destroyed;
43911
43912 static void nes_replenish_mgt_rq(struct nes_vnic_mgt *mgtvnic)
43913 {
43914@@ -621,7 +621,7 @@ void nes_destroy_pau_qp(struct nes_device *nesdev, struct nes_qp *nesqp)
43915 {
43916 struct sk_buff *skb;
43917 unsigned long flags;
43918- atomic_inc(&pau_qps_destroyed);
43919+ atomic_inc_unchecked(&pau_qps_destroyed);
43920
43921 /* Free packets that have not yet been forwarded */
43922 /* Lock is acquired by skb_dequeue when removing the skb */
43923@@ -810,7 +810,7 @@ static void nes_mgt_ce_handler(struct nes_device *nesdev, struct nes_hw_nic_cq *
43924 cq->cq_vbase[head].cqe_words[NES_NIC_CQE_HASH_RCVNXT]);
43925 skb_queue_head_init(&nesqp->pau_list);
43926 spin_lock_init(&nesqp->pau_lock);
43927- atomic_inc(&pau_qps_created);
43928+ atomic_inc_unchecked(&pau_qps_created);
43929 nes_change_quad_hash(nesdev, mgtvnic->nesvnic, nesqp);
43930 }
43931
43932diff --git a/drivers/infiniband/hw/nes/nes_nic.c b/drivers/infiniband/hw/nes/nes_nic.c
43933index 70acda9..a96de9d 100644
43934--- a/drivers/infiniband/hw/nes/nes_nic.c
43935+++ b/drivers/infiniband/hw/nes/nes_nic.c
43936@@ -1274,39 +1274,39 @@ static void nes_netdev_get_ethtool_stats(struct net_device *netdev,
43937 target_stat_values[++index] = mh_detected;
43938 target_stat_values[++index] = mh_pauses_sent;
43939 target_stat_values[++index] = nesvnic->endnode_ipv4_tcp_retransmits;
43940- target_stat_values[++index] = atomic_read(&cm_connects);
43941- target_stat_values[++index] = atomic_read(&cm_accepts);
43942- target_stat_values[++index] = atomic_read(&cm_disconnects);
43943- target_stat_values[++index] = atomic_read(&cm_connecteds);
43944- target_stat_values[++index] = atomic_read(&cm_connect_reqs);
43945- target_stat_values[++index] = atomic_read(&cm_rejects);
43946- target_stat_values[++index] = atomic_read(&mod_qp_timouts);
43947- target_stat_values[++index] = atomic_read(&qps_created);
43948- target_stat_values[++index] = atomic_read(&sw_qps_destroyed);
43949- target_stat_values[++index] = atomic_read(&qps_destroyed);
43950- target_stat_values[++index] = atomic_read(&cm_closes);
43951+ target_stat_values[++index] = atomic_read_unchecked(&cm_connects);
43952+ target_stat_values[++index] = atomic_read_unchecked(&cm_accepts);
43953+ target_stat_values[++index] = atomic_read_unchecked(&cm_disconnects);
43954+ target_stat_values[++index] = atomic_read_unchecked(&cm_connecteds);
43955+ target_stat_values[++index] = atomic_read_unchecked(&cm_connect_reqs);
43956+ target_stat_values[++index] = atomic_read_unchecked(&cm_rejects);
43957+ target_stat_values[++index] = atomic_read_unchecked(&mod_qp_timouts);
43958+ target_stat_values[++index] = atomic_read_unchecked(&qps_created);
43959+ target_stat_values[++index] = atomic_read_unchecked(&sw_qps_destroyed);
43960+ target_stat_values[++index] = atomic_read_unchecked(&qps_destroyed);
43961+ target_stat_values[++index] = atomic_read_unchecked(&cm_closes);
43962 target_stat_values[++index] = cm_packets_sent;
43963 target_stat_values[++index] = cm_packets_bounced;
43964 target_stat_values[++index] = cm_packets_created;
43965 target_stat_values[++index] = cm_packets_received;
43966 target_stat_values[++index] = cm_packets_dropped;
43967 target_stat_values[++index] = cm_packets_retrans;
43968- target_stat_values[++index] = atomic_read(&cm_listens_created);
43969- target_stat_values[++index] = atomic_read(&cm_listens_destroyed);
43970+ target_stat_values[++index] = atomic_read_unchecked(&cm_listens_created);
43971+ target_stat_values[++index] = atomic_read_unchecked(&cm_listens_destroyed);
43972 target_stat_values[++index] = cm_backlog_drops;
43973- target_stat_values[++index] = atomic_read(&cm_loopbacks);
43974- target_stat_values[++index] = atomic_read(&cm_nodes_created);
43975- target_stat_values[++index] = atomic_read(&cm_nodes_destroyed);
43976- target_stat_values[++index] = atomic_read(&cm_accel_dropped_pkts);
43977- target_stat_values[++index] = atomic_read(&cm_resets_recvd);
43978+ target_stat_values[++index] = atomic_read_unchecked(&cm_loopbacks);
43979+ target_stat_values[++index] = atomic_read_unchecked(&cm_nodes_created);
43980+ target_stat_values[++index] = atomic_read_unchecked(&cm_nodes_destroyed);
43981+ target_stat_values[++index] = atomic_read_unchecked(&cm_accel_dropped_pkts);
43982+ target_stat_values[++index] = atomic_read_unchecked(&cm_resets_recvd);
43983 target_stat_values[++index] = nesadapter->free_4kpbl;
43984 target_stat_values[++index] = nesadapter->free_256pbl;
43985 target_stat_values[++index] = int_mod_timer_init;
43986 target_stat_values[++index] = nesvnic->lro_mgr.stats.aggregated;
43987 target_stat_values[++index] = nesvnic->lro_mgr.stats.flushed;
43988 target_stat_values[++index] = nesvnic->lro_mgr.stats.no_desc;
43989- target_stat_values[++index] = atomic_read(&pau_qps_created);
43990- target_stat_values[++index] = atomic_read(&pau_qps_destroyed);
43991+ target_stat_values[++index] = atomic_read_unchecked(&pau_qps_created);
43992+ target_stat_values[++index] = atomic_read_unchecked(&pau_qps_destroyed);
43993 }
43994
43995 /**
43996diff --git a/drivers/infiniband/hw/nes/nes_verbs.c b/drivers/infiniband/hw/nes/nes_verbs.c
43997index c0d0296..3185f57 100644
43998--- a/drivers/infiniband/hw/nes/nes_verbs.c
43999+++ b/drivers/infiniband/hw/nes/nes_verbs.c
44000@@ -46,9 +46,9 @@
44001
44002 #include <rdma/ib_umem.h>
44003
44004-atomic_t mod_qp_timouts;
44005-atomic_t qps_created;
44006-atomic_t sw_qps_destroyed;
44007+atomic_unchecked_t mod_qp_timouts;
44008+atomic_unchecked_t qps_created;
44009+atomic_unchecked_t sw_qps_destroyed;
44010
44011 static void nes_unregister_ofa_device(struct nes_ib_device *nesibdev);
44012
44013@@ -1134,7 +1134,7 @@ static struct ib_qp *nes_create_qp(struct ib_pd *ibpd,
44014 if (init_attr->create_flags)
44015 return ERR_PTR(-EINVAL);
44016
44017- atomic_inc(&qps_created);
44018+ atomic_inc_unchecked(&qps_created);
44019 switch (init_attr->qp_type) {
44020 case IB_QPT_RC:
44021 if (nes_drv_opt & NES_DRV_OPT_NO_INLINE_DATA) {
44022@@ -1468,7 +1468,7 @@ static int nes_destroy_qp(struct ib_qp *ibqp)
44023 struct iw_cm_event cm_event;
44024 int ret = 0;
44025
44026- atomic_inc(&sw_qps_destroyed);
44027+ atomic_inc_unchecked(&sw_qps_destroyed);
44028 nesqp->destroyed = 1;
44029
44030 /* Blow away the connection if it exists. */
44031diff --git a/drivers/infiniband/hw/qib/qib.h b/drivers/infiniband/hw/qib/qib.h
44032index ffd48bf..83cdb56 100644
44033--- a/drivers/infiniband/hw/qib/qib.h
44034+++ b/drivers/infiniband/hw/qib/qib.h
44035@@ -52,6 +52,7 @@
44036 #include <linux/kref.h>
44037 #include <linux/sched.h>
44038 #include <linux/kthread.h>
44039+#include <linux/slab.h>
44040
44041 #include "qib_common.h"
44042 #include "qib_verbs.h"
44043diff --git a/drivers/infiniband/ulp/ipoib/ipoib_netlink.c b/drivers/infiniband/ulp/ipoib/ipoib_netlink.c
44044index cdc7df4..a2fdfdb 100644
44045--- a/drivers/infiniband/ulp/ipoib/ipoib_netlink.c
44046+++ b/drivers/infiniband/ulp/ipoib/ipoib_netlink.c
44047@@ -156,7 +156,7 @@ static size_t ipoib_get_size(const struct net_device *dev)
44048 nla_total_size(2); /* IFLA_IPOIB_UMCAST */
44049 }
44050
44051-static struct rtnl_link_ops ipoib_link_ops __read_mostly = {
44052+static struct rtnl_link_ops ipoib_link_ops = {
44053 .kind = "ipoib",
44054 .maxtype = IFLA_IPOIB_MAX,
44055 .policy = ipoib_policy,
44056diff --git a/drivers/input/gameport/gameport.c b/drivers/input/gameport/gameport.c
44057index e853a21..56fc5a8 100644
44058--- a/drivers/input/gameport/gameport.c
44059+++ b/drivers/input/gameport/gameport.c
44060@@ -527,14 +527,14 @@ EXPORT_SYMBOL(gameport_set_phys);
44061 */
44062 static void gameport_init_port(struct gameport *gameport)
44063 {
44064- static atomic_t gameport_no = ATOMIC_INIT(-1);
44065+ static atomic_unchecked_t gameport_no = ATOMIC_INIT(-1);
44066
44067 __module_get(THIS_MODULE);
44068
44069 mutex_init(&gameport->drv_mutex);
44070 device_initialize(&gameport->dev);
44071 dev_set_name(&gameport->dev, "gameport%lu",
44072- (unsigned long)atomic_inc_return(&gameport_no));
44073+ (unsigned long)atomic_inc_return_unchecked(&gameport_no));
44074 gameport->dev.bus = &gameport_bus;
44075 gameport->dev.release = gameport_release_port;
44076 if (gameport->parent)
44077diff --git a/drivers/input/input.c b/drivers/input/input.c
44078index cc357f1..ee42fbc 100644
44079--- a/drivers/input/input.c
44080+++ b/drivers/input/input.c
44081@@ -1781,7 +1781,7 @@ EXPORT_SYMBOL_GPL(input_class);
44082 */
44083 struct input_dev *input_allocate_device(void)
44084 {
44085- static atomic_t input_no = ATOMIC_INIT(-1);
44086+ static atomic_unchecked_t input_no = ATOMIC_INIT(-1);
44087 struct input_dev *dev;
44088
44089 dev = kzalloc(sizeof(struct input_dev), GFP_KERNEL);
44090@@ -1796,7 +1796,7 @@ struct input_dev *input_allocate_device(void)
44091 INIT_LIST_HEAD(&dev->node);
44092
44093 dev_set_name(&dev->dev, "input%lu",
44094- (unsigned long)atomic_inc_return(&input_no));
44095+ (unsigned long)atomic_inc_return_unchecked(&input_no));
44096
44097 __module_get(THIS_MODULE);
44098 }
44099diff --git a/drivers/input/joystick/sidewinder.c b/drivers/input/joystick/sidewinder.c
44100index 4a95b22..874c182 100644
44101--- a/drivers/input/joystick/sidewinder.c
44102+++ b/drivers/input/joystick/sidewinder.c
44103@@ -30,6 +30,7 @@
44104 #include <linux/kernel.h>
44105 #include <linux/module.h>
44106 #include <linux/slab.h>
44107+#include <linux/sched.h>
44108 #include <linux/input.h>
44109 #include <linux/gameport.h>
44110 #include <linux/jiffies.h>
44111diff --git a/drivers/input/joystick/xpad.c b/drivers/input/joystick/xpad.c
44112index 3aa2f3f..53c00ea 100644
44113--- a/drivers/input/joystick/xpad.c
44114+++ b/drivers/input/joystick/xpad.c
44115@@ -886,7 +886,7 @@ static void xpad_led_set(struct led_classdev *led_cdev,
44116
44117 static int xpad_led_probe(struct usb_xpad *xpad)
44118 {
44119- static atomic_t led_seq = ATOMIC_INIT(-1);
44120+ static atomic_unchecked_t led_seq = ATOMIC_INIT(-1);
44121 unsigned long led_no;
44122 struct xpad_led *led;
44123 struct led_classdev *led_cdev;
44124@@ -899,7 +899,7 @@ static int xpad_led_probe(struct usb_xpad *xpad)
44125 if (!led)
44126 return -ENOMEM;
44127
44128- led_no = atomic_inc_return(&led_seq);
44129+ led_no = atomic_inc_return_unchecked(&led_seq);
44130
44131 snprintf(led->name, sizeof(led->name), "xpad%lu", led_no);
44132 led->xpad = xpad;
44133diff --git a/drivers/input/misc/ims-pcu.c b/drivers/input/misc/ims-pcu.c
44134index ac1fa5f..5f7502c 100644
44135--- a/drivers/input/misc/ims-pcu.c
44136+++ b/drivers/input/misc/ims-pcu.c
44137@@ -1851,7 +1851,7 @@ static int ims_pcu_identify_type(struct ims_pcu *pcu, u8 *device_id)
44138
44139 static int ims_pcu_init_application_mode(struct ims_pcu *pcu)
44140 {
44141- static atomic_t device_no = ATOMIC_INIT(-1);
44142+ static atomic_unchecked_t device_no = ATOMIC_INIT(-1);
44143
44144 const struct ims_pcu_device_info *info;
44145 int error;
44146@@ -1882,7 +1882,7 @@ static int ims_pcu_init_application_mode(struct ims_pcu *pcu)
44147 }
44148
44149 /* Device appears to be operable, complete initialization */
44150- pcu->device_no = atomic_inc_return(&device_no);
44151+ pcu->device_no = atomic_inc_return_unchecked(&device_no);
44152
44153 /*
44154 * PCU-B devices, both GEN_1 and GEN_2 do not have OFN sensor
44155diff --git a/drivers/input/mouse/psmouse.h b/drivers/input/mouse/psmouse.h
44156index d02e1bd..d719719 100644
44157--- a/drivers/input/mouse/psmouse.h
44158+++ b/drivers/input/mouse/psmouse.h
44159@@ -124,7 +124,7 @@ struct psmouse_attribute {
44160 ssize_t (*set)(struct psmouse *psmouse, void *data,
44161 const char *buf, size_t count);
44162 bool protect;
44163-};
44164+} __do_const;
44165 #define to_psmouse_attr(a) container_of((a), struct psmouse_attribute, dattr)
44166
44167 ssize_t psmouse_attr_show_helper(struct device *dev, struct device_attribute *attr,
44168diff --git a/drivers/input/mousedev.c b/drivers/input/mousedev.c
44169index b604564..3f14ae4 100644
44170--- a/drivers/input/mousedev.c
44171+++ b/drivers/input/mousedev.c
44172@@ -744,7 +744,7 @@ static ssize_t mousedev_read(struct file *file, char __user *buffer,
44173
44174 spin_unlock_irq(&client->packet_lock);
44175
44176- if (copy_to_user(buffer, data, count))
44177+ if (count > sizeof(data) || copy_to_user(buffer, data, count))
44178 return -EFAULT;
44179
44180 return count;
44181diff --git a/drivers/input/serio/serio.c b/drivers/input/serio/serio.c
44182index a05a517..323a2fd 100644
44183--- a/drivers/input/serio/serio.c
44184+++ b/drivers/input/serio/serio.c
44185@@ -514,7 +514,7 @@ static void serio_release_port(struct device *dev)
44186 */
44187 static void serio_init_port(struct serio *serio)
44188 {
44189- static atomic_t serio_no = ATOMIC_INIT(-1);
44190+ static atomic_unchecked_t serio_no = ATOMIC_INIT(-1);
44191
44192 __module_get(THIS_MODULE);
44193
44194@@ -525,7 +525,7 @@ static void serio_init_port(struct serio *serio)
44195 mutex_init(&serio->drv_mutex);
44196 device_initialize(&serio->dev);
44197 dev_set_name(&serio->dev, "serio%lu",
44198- (unsigned long)atomic_inc_return(&serio_no));
44199+ (unsigned long)atomic_inc_return_unchecked(&serio_no));
44200 serio->dev.bus = &serio_bus;
44201 serio->dev.release = serio_release_port;
44202 serio->dev.groups = serio_device_attr_groups;
44203diff --git a/drivers/input/serio/serio_raw.c b/drivers/input/serio/serio_raw.c
44204index 71ef5d6..93380a9 100644
44205--- a/drivers/input/serio/serio_raw.c
44206+++ b/drivers/input/serio/serio_raw.c
44207@@ -292,7 +292,7 @@ static irqreturn_t serio_raw_interrupt(struct serio *serio, unsigned char data,
44208
44209 static int serio_raw_connect(struct serio *serio, struct serio_driver *drv)
44210 {
44211- static atomic_t serio_raw_no = ATOMIC_INIT(-1);
44212+ static atomic_unchecked_t serio_raw_no = ATOMIC_INIT(-1);
44213 struct serio_raw *serio_raw;
44214 int err;
44215
44216@@ -303,7 +303,7 @@ static int serio_raw_connect(struct serio *serio, struct serio_driver *drv)
44217 }
44218
44219 snprintf(serio_raw->name, sizeof(serio_raw->name),
44220- "serio_raw%ld", (long)atomic_inc_return(&serio_raw_no));
44221+ "serio_raw%ld", (long)atomic_inc_return_unchecked(&serio_raw_no));
44222 kref_init(&serio_raw->kref);
44223 INIT_LIST_HEAD(&serio_raw->client_list);
44224 init_waitqueue_head(&serio_raw->wait);
44225diff --git a/drivers/input/touchscreen/htcpen.c b/drivers/input/touchscreen/htcpen.c
44226index 92e2243..8fd9092 100644
44227--- a/drivers/input/touchscreen/htcpen.c
44228+++ b/drivers/input/touchscreen/htcpen.c
44229@@ -219,7 +219,7 @@ static struct isa_driver htcpen_isa_driver = {
44230 }
44231 };
44232
44233-static struct dmi_system_id htcshift_dmi_table[] __initdata = {
44234+static const struct dmi_system_id htcshift_dmi_table[] __initconst = {
44235 {
44236 .ident = "Shift",
44237 .matches = {
44238diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
44239index 48882c1..93e0987 100644
44240--- a/drivers/iommu/amd_iommu.c
44241+++ b/drivers/iommu/amd_iommu.c
44242@@ -823,11 +823,21 @@ static void copy_cmd_to_buffer(struct amd_iommu *iommu,
44243
44244 static void build_completion_wait(struct iommu_cmd *cmd, u64 address)
44245 {
44246+ phys_addr_t physaddr;
44247 WARN_ON(address & 0x7ULL);
44248
44249 memset(cmd, 0, sizeof(*cmd));
44250- cmd->data[0] = lower_32_bits(__pa(address)) | CMD_COMPL_WAIT_STORE_MASK;
44251- cmd->data[1] = upper_32_bits(__pa(address));
44252+
44253+#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
44254+ if (object_starts_on_stack((void *)address)) {
44255+ void *adjbuf = (void *)address - current->stack + current->lowmem_stack;
44256+ physaddr = __pa((u64)adjbuf);
44257+ } else
44258+#endif
44259+ physaddr = __pa(address);
44260+
44261+ cmd->data[0] = lower_32_bits(physaddr) | CMD_COMPL_WAIT_STORE_MASK;
44262+ cmd->data[1] = upper_32_bits(physaddr);
44263 cmd->data[2] = 1;
44264 CMD_SET_TYPE(cmd, CMD_COMPL_WAIT);
44265 }
44266diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c
44267index bd6252b..0716605 100644
44268--- a/drivers/iommu/arm-smmu.c
44269+++ b/drivers/iommu/arm-smmu.c
44270@@ -331,7 +331,7 @@ enum arm_smmu_domain_stage {
44271
44272 struct arm_smmu_domain {
44273 struct arm_smmu_device *smmu;
44274- struct io_pgtable_ops *pgtbl_ops;
44275+ struct io_pgtable *pgtbl;
44276 spinlock_t pgtbl_lock;
44277 struct arm_smmu_cfg cfg;
44278 enum arm_smmu_domain_stage stage;
44279@@ -807,7 +807,7 @@ static int arm_smmu_init_domain_context(struct iommu_domain *domain,
44280 {
44281 int irq, start, ret = 0;
44282 unsigned long ias, oas;
44283- struct io_pgtable_ops *pgtbl_ops;
44284+ struct io_pgtable *pgtbl;
44285 struct io_pgtable_cfg pgtbl_cfg;
44286 enum io_pgtable_fmt fmt;
44287 struct arm_smmu_domain *smmu_domain = domain->priv;
44288@@ -892,14 +892,16 @@ static int arm_smmu_init_domain_context(struct iommu_domain *domain,
44289 };
44290
44291 smmu_domain->smmu = smmu;
44292- pgtbl_ops = alloc_io_pgtable_ops(fmt, &pgtbl_cfg, smmu_domain);
44293- if (!pgtbl_ops) {
44294+ pgtbl = alloc_io_pgtable(fmt, &pgtbl_cfg, smmu_domain);
44295+ if (!pgtbl) {
44296 ret = -ENOMEM;
44297 goto out_clear_smmu;
44298 }
44299
44300 /* Update our support page sizes to reflect the page table format */
44301- arm_smmu_ops.pgsize_bitmap = pgtbl_cfg.pgsize_bitmap;
44302+ pax_open_kernel();
44303+ *(unsigned long *)&arm_smmu_ops.pgsize_bitmap = pgtbl_cfg.pgsize_bitmap;
44304+ pax_close_kernel();
44305
44306 /* Initialise the context bank with our page table cfg */
44307 arm_smmu_init_context_bank(smmu_domain, &pgtbl_cfg);
44308@@ -920,7 +922,7 @@ static int arm_smmu_init_domain_context(struct iommu_domain *domain,
44309 mutex_unlock(&smmu_domain->init_mutex);
44310
44311 /* Publish page table ops for map/unmap */
44312- smmu_domain->pgtbl_ops = pgtbl_ops;
44313+ smmu_domain->pgtbl = pgtbl;
44314 return 0;
44315
44316 out_clear_smmu:
44317@@ -953,8 +955,7 @@ static void arm_smmu_destroy_domain_context(struct iommu_domain *domain)
44318 free_irq(irq, domain);
44319 }
44320
44321- if (smmu_domain->pgtbl_ops)
44322- free_io_pgtable_ops(smmu_domain->pgtbl_ops);
44323+ free_io_pgtable(smmu_domain->pgtbl);
44324
44325 __arm_smmu_free_bitmap(smmu->context_map, cfg->cbndx);
44326 }
44327@@ -1178,13 +1179,13 @@ static int arm_smmu_map(struct iommu_domain *domain, unsigned long iova,
44328 int ret;
44329 unsigned long flags;
44330 struct arm_smmu_domain *smmu_domain = domain->priv;
44331- struct io_pgtable_ops *ops= smmu_domain->pgtbl_ops;
44332+ struct io_pgtable *iop = smmu_domain->pgtbl;
44333
44334- if (!ops)
44335+ if (!iop)
44336 return -ENODEV;
44337
44338 spin_lock_irqsave(&smmu_domain->pgtbl_lock, flags);
44339- ret = ops->map(ops, iova, paddr, size, prot);
44340+ ret = iop->ops->map(iop, iova, paddr, size, prot);
44341 spin_unlock_irqrestore(&smmu_domain->pgtbl_lock, flags);
44342 return ret;
44343 }
44344@@ -1195,13 +1196,13 @@ static size_t arm_smmu_unmap(struct iommu_domain *domain, unsigned long iova,
44345 size_t ret;
44346 unsigned long flags;
44347 struct arm_smmu_domain *smmu_domain = domain->priv;
44348- struct io_pgtable_ops *ops= smmu_domain->pgtbl_ops;
44349+ struct io_pgtable *iop = smmu_domain->pgtbl;
44350
44351- if (!ops)
44352+ if (!iop)
44353 return 0;
44354
44355 spin_lock_irqsave(&smmu_domain->pgtbl_lock, flags);
44356- ret = ops->unmap(ops, iova, size);
44357+ ret = iop->ops->unmap(iop, iova, size);
44358 spin_unlock_irqrestore(&smmu_domain->pgtbl_lock, flags);
44359 return ret;
44360 }
44361@@ -1212,7 +1213,7 @@ static phys_addr_t arm_smmu_iova_to_phys_hard(struct iommu_domain *domain,
44362 struct arm_smmu_domain *smmu_domain = domain->priv;
44363 struct arm_smmu_device *smmu = smmu_domain->smmu;
44364 struct arm_smmu_cfg *cfg = &smmu_domain->cfg;
44365- struct io_pgtable_ops *ops= smmu_domain->pgtbl_ops;
44366+ struct io_pgtable *iop = smmu_domain->pgtbl;
44367 struct device *dev = smmu->dev;
44368 void __iomem *cb_base;
44369 u32 tmp;
44370@@ -1235,7 +1236,7 @@ static phys_addr_t arm_smmu_iova_to_phys_hard(struct iommu_domain *domain,
44371 dev_err(dev,
44372 "iova to phys timed out on 0x%pad. Falling back to software table walk.\n",
44373 &iova);
44374- return ops->iova_to_phys(ops, iova);
44375+ return iop->ops->iova_to_phys(iop, iova);
44376 }
44377
44378 phys = readl_relaxed(cb_base + ARM_SMMU_CB_PAR_LO);
44379@@ -1256,9 +1257,9 @@ static phys_addr_t arm_smmu_iova_to_phys(struct iommu_domain *domain,
44380 phys_addr_t ret;
44381 unsigned long flags;
44382 struct arm_smmu_domain *smmu_domain = domain->priv;
44383- struct io_pgtable_ops *ops= smmu_domain->pgtbl_ops;
44384+ struct io_pgtable *iop = smmu_domain->pgtbl;
44385
44386- if (!ops)
44387+ if (!iop)
44388 return 0;
44389
44390 spin_lock_irqsave(&smmu_domain->pgtbl_lock, flags);
44391@@ -1266,7 +1267,7 @@ static phys_addr_t arm_smmu_iova_to_phys(struct iommu_domain *domain,
44392 smmu_domain->stage == ARM_SMMU_DOMAIN_S1) {
44393 ret = arm_smmu_iova_to_phys_hard(domain, iova);
44394 } else {
44395- ret = ops->iova_to_phys(ops, iova);
44396+ ret = iop->ops->iova_to_phys(iop, iova);
44397 }
44398
44399 spin_unlock_irqrestore(&smmu_domain->pgtbl_lock, flags);
44400@@ -1625,7 +1626,9 @@ static int arm_smmu_device_cfg_probe(struct arm_smmu_device *smmu)
44401 size |= SZ_64K | SZ_512M;
44402 }
44403
44404- arm_smmu_ops.pgsize_bitmap &= size;
44405+ pax_open_kernel();
44406+ *(unsigned long *)&arm_smmu_ops.pgsize_bitmap &= size;
44407+ pax_close_kernel();
44408 dev_notice(smmu->dev, "\tSupported page sizes: 0x%08lx\n", size);
44409
44410 if (smmu->features & ARM_SMMU_FEAT_TRANS_S1)
44411diff --git a/drivers/iommu/io-pgtable-arm.c b/drivers/iommu/io-pgtable-arm.c
44412index b610a8d..08eb879 100644
44413--- a/drivers/iommu/io-pgtable-arm.c
44414+++ b/drivers/iommu/io-pgtable-arm.c
44415@@ -36,12 +36,6 @@
44416 #define io_pgtable_to_data(x) \
44417 container_of((x), struct arm_lpae_io_pgtable, iop)
44418
44419-#define io_pgtable_ops_to_pgtable(x) \
44420- container_of((x), struct io_pgtable, ops)
44421-
44422-#define io_pgtable_ops_to_data(x) \
44423- io_pgtable_to_data(io_pgtable_ops_to_pgtable(x))
44424-
44425 /*
44426 * For consistency with the architecture, we always consider
44427 * ARM_LPAE_MAX_LEVELS levels, with the walk starting at level n >=0
44428@@ -302,10 +296,10 @@ static arm_lpae_iopte arm_lpae_prot_to_pte(struct arm_lpae_io_pgtable *data,
44429 return pte;
44430 }
44431
44432-static int arm_lpae_map(struct io_pgtable_ops *ops, unsigned long iova,
44433+static int arm_lpae_map(struct io_pgtable *iop, unsigned long iova,
44434 phys_addr_t paddr, size_t size, int iommu_prot)
44435 {
44436- struct arm_lpae_io_pgtable *data = io_pgtable_ops_to_data(ops);
44437+ struct arm_lpae_io_pgtable *data = io_pgtable_to_data(iop);
44438 arm_lpae_iopte *ptep = data->pgd;
44439 int lvl = ARM_LPAE_START_LVL(data);
44440 arm_lpae_iopte prot;
44441@@ -445,12 +439,11 @@ static int __arm_lpae_unmap(struct arm_lpae_io_pgtable *data,
44442 return __arm_lpae_unmap(data, iova, size, lvl + 1, ptep);
44443 }
44444
44445-static int arm_lpae_unmap(struct io_pgtable_ops *ops, unsigned long iova,
44446+static int arm_lpae_unmap(struct io_pgtable *iop, unsigned long iova,
44447 size_t size)
44448 {
44449 size_t unmapped;
44450- struct arm_lpae_io_pgtable *data = io_pgtable_ops_to_data(ops);
44451- struct io_pgtable *iop = &data->iop;
44452+ struct arm_lpae_io_pgtable *data = io_pgtable_to_data(iop);
44453 arm_lpae_iopte *ptep = data->pgd;
44454 int lvl = ARM_LPAE_START_LVL(data);
44455
44456@@ -461,10 +454,10 @@ static int arm_lpae_unmap(struct io_pgtable_ops *ops, unsigned long iova,
44457 return unmapped;
44458 }
44459
44460-static phys_addr_t arm_lpae_iova_to_phys(struct io_pgtable_ops *ops,
44461+static phys_addr_t arm_lpae_iova_to_phys(struct io_pgtable *iop,
44462 unsigned long iova)
44463 {
44464- struct arm_lpae_io_pgtable *data = io_pgtable_ops_to_data(ops);
44465+ struct arm_lpae_io_pgtable *data = io_pgtable_to_data(iop);
44466 arm_lpae_iopte pte, *ptep = data->pgd;
44467 int lvl = ARM_LPAE_START_LVL(data);
44468
44469@@ -531,6 +524,12 @@ static void arm_lpae_restrict_pgsizes(struct io_pgtable_cfg *cfg)
44470 }
44471 }
44472
44473+static struct io_pgtable_ops arm_lpae_io_pgtable_ops = {
44474+ .map = arm_lpae_map,
44475+ .unmap = arm_lpae_unmap,
44476+ .iova_to_phys = arm_lpae_iova_to_phys,
44477+};
44478+
44479 static struct arm_lpae_io_pgtable *
44480 arm_lpae_alloc_pgtable(struct io_pgtable_cfg *cfg)
44481 {
44482@@ -562,11 +561,7 @@ arm_lpae_alloc_pgtable(struct io_pgtable_cfg *cfg)
44483 pgd_bits = va_bits - (data->bits_per_level * (data->levels - 1));
44484 data->pgd_size = 1UL << (pgd_bits + ilog2(sizeof(arm_lpae_iopte)));
44485
44486- data->iop.ops = (struct io_pgtable_ops) {
44487- .map = arm_lpae_map,
44488- .unmap = arm_lpae_unmap,
44489- .iova_to_phys = arm_lpae_iova_to_phys,
44490- };
44491+ data->iop.ops = &arm_lpae_io_pgtable_ops;
44492
44493 return data;
44494 }
44495@@ -825,9 +820,9 @@ static struct iommu_gather_ops dummy_tlb_ops __initdata = {
44496 .flush_pgtable = dummy_flush_pgtable,
44497 };
44498
44499-static void __init arm_lpae_dump_ops(struct io_pgtable_ops *ops)
44500+static void __init arm_lpae_dump_ops(struct io_pgtable *iop)
44501 {
44502- struct arm_lpae_io_pgtable *data = io_pgtable_ops_to_data(ops);
44503+ struct arm_lpae_io_pgtable *data = io_pgtable_to_data(iop);
44504 struct io_pgtable_cfg *cfg = &data->iop.cfg;
44505
44506 pr_err("cfg: pgsize_bitmap 0x%lx, ias %u-bit\n",
44507@@ -837,9 +832,9 @@ static void __init arm_lpae_dump_ops(struct io_pgtable_ops *ops)
44508 data->bits_per_level, data->pgd);
44509 }
44510
44511-#define __FAIL(ops, i) ({ \
44512+#define __FAIL(iop, i) ({ \
44513 WARN(1, "selftest: test failed for fmt idx %d\n", (i)); \
44514- arm_lpae_dump_ops(ops); \
44515+ arm_lpae_dump_ops(iop); \
44516 selftest_running = false; \
44517 -EFAULT; \
44518 })
44519@@ -854,30 +849,32 @@ static int __init arm_lpae_run_tests(struct io_pgtable_cfg *cfg)
44520 int i, j;
44521 unsigned long iova;
44522 size_t size;
44523- struct io_pgtable_ops *ops;
44524+ struct io_pgtable *iop;
44525+ const struct io_pgtable_ops *ops;
44526
44527 selftest_running = true;
44528
44529 for (i = 0; i < ARRAY_SIZE(fmts); ++i) {
44530 cfg_cookie = cfg;
44531- ops = alloc_io_pgtable_ops(fmts[i], cfg, cfg);
44532- if (!ops) {
44533+ iop = alloc_io_pgtable(fmts[i], cfg, cfg);
44534+ if (!iop) {
44535 pr_err("selftest: failed to allocate io pgtable ops\n");
44536 return -ENOMEM;
44537 }
44538+ ops = iop->ops;
44539
44540 /*
44541 * Initial sanity checks.
44542 * Empty page tables shouldn't provide any translations.
44543 */
44544- if (ops->iova_to_phys(ops, 42))
44545- return __FAIL(ops, i);
44546+ if (ops->iova_to_phys(iop, 42))
44547+ return __FAIL(iop, i);
44548
44549- if (ops->iova_to_phys(ops, SZ_1G + 42))
44550- return __FAIL(ops, i);
44551+ if (ops->iova_to_phys(iop, SZ_1G + 42))
44552+ return __FAIL(iop, i);
44553
44554- if (ops->iova_to_phys(ops, SZ_2G + 42))
44555- return __FAIL(ops, i);
44556+ if (ops->iova_to_phys(iop, SZ_2G + 42))
44557+ return __FAIL(iop, i);
44558
44559 /*
44560 * Distinct mappings of different granule sizes.
44561@@ -887,19 +884,19 @@ static int __init arm_lpae_run_tests(struct io_pgtable_cfg *cfg)
44562 while (j != BITS_PER_LONG) {
44563 size = 1UL << j;
44564
44565- if (ops->map(ops, iova, iova, size, IOMMU_READ |
44566+ if (ops->map(iop, iova, iova, size, IOMMU_READ |
44567 IOMMU_WRITE |
44568 IOMMU_NOEXEC |
44569 IOMMU_CACHE))
44570- return __FAIL(ops, i);
44571+ return __FAIL(iop, i);
44572
44573 /* Overlapping mappings */
44574- if (!ops->map(ops, iova, iova + size, size,
44575+ if (!ops->map(iop, iova, iova + size, size,
44576 IOMMU_READ | IOMMU_NOEXEC))
44577- return __FAIL(ops, i);
44578+ return __FAIL(iop, i);
44579
44580- if (ops->iova_to_phys(ops, iova + 42) != (iova + 42))
44581- return __FAIL(ops, i);
44582+ if (ops->iova_to_phys(iop, iova + 42) != (iova + 42))
44583+ return __FAIL(iop, i);
44584
44585 iova += SZ_1G;
44586 j++;
44587@@ -908,15 +905,15 @@ static int __init arm_lpae_run_tests(struct io_pgtable_cfg *cfg)
44588
44589 /* Partial unmap */
44590 size = 1UL << __ffs(cfg->pgsize_bitmap);
44591- if (ops->unmap(ops, SZ_1G + size, size) != size)
44592- return __FAIL(ops, i);
44593+ if (ops->unmap(iop, SZ_1G + size, size) != size)
44594+ return __FAIL(iop, i);
44595
44596 /* Remap of partial unmap */
44597- if (ops->map(ops, SZ_1G + size, size, size, IOMMU_READ))
44598- return __FAIL(ops, i);
44599+ if (ops->map(iop, SZ_1G + size, size, size, IOMMU_READ))
44600+ return __FAIL(iop, i);
44601
44602- if (ops->iova_to_phys(ops, SZ_1G + size + 42) != (size + 42))
44603- return __FAIL(ops, i);
44604+ if (ops->iova_to_phys(iop, SZ_1G + size + 42) != (size + 42))
44605+ return __FAIL(iop, i);
44606
44607 /* Full unmap */
44608 iova = 0;
44609@@ -924,25 +921,25 @@ static int __init arm_lpae_run_tests(struct io_pgtable_cfg *cfg)
44610 while (j != BITS_PER_LONG) {
44611 size = 1UL << j;
44612
44613- if (ops->unmap(ops, iova, size) != size)
44614- return __FAIL(ops, i);
44615+ if (ops->unmap(iop, iova, size) != size)
44616+ return __FAIL(iop, i);
44617
44618- if (ops->iova_to_phys(ops, iova + 42))
44619- return __FAIL(ops, i);
44620+ if (ops->iova_to_phys(iop, iova + 42))
44621+ return __FAIL(iop, i);
44622
44623 /* Remap full block */
44624- if (ops->map(ops, iova, iova, size, IOMMU_WRITE))
44625- return __FAIL(ops, i);
44626+ if (ops->map(iop, iova, iova, size, IOMMU_WRITE))
44627+ return __FAIL(iop, i);
44628
44629- if (ops->iova_to_phys(ops, iova + 42) != (iova + 42))
44630- return __FAIL(ops, i);
44631+ if (ops->iova_to_phys(iop, iova + 42) != (iova + 42))
44632+ return __FAIL(iop, i);
44633
44634 iova += SZ_1G;
44635 j++;
44636 j = find_next_bit(&cfg->pgsize_bitmap, BITS_PER_LONG, j);
44637 }
44638
44639- free_io_pgtable_ops(ops);
44640+ free_io_pgtable(iop);
44641 }
44642
44643 selftest_running = false;
44644diff --git a/drivers/iommu/io-pgtable.c b/drivers/iommu/io-pgtable.c
44645index 6436fe2..088c965 100644
44646--- a/drivers/iommu/io-pgtable.c
44647+++ b/drivers/iommu/io-pgtable.c
44648@@ -40,7 +40,7 @@ io_pgtable_init_table[IO_PGTABLE_NUM_FMTS] =
44649 #endif
44650 };
44651
44652-struct io_pgtable_ops *alloc_io_pgtable_ops(enum io_pgtable_fmt fmt,
44653+struct io_pgtable *alloc_io_pgtable(enum io_pgtable_fmt fmt,
44654 struct io_pgtable_cfg *cfg,
44655 void *cookie)
44656 {
44657@@ -62,21 +62,18 @@ struct io_pgtable_ops *alloc_io_pgtable_ops(enum io_pgtable_fmt fmt,
44658 iop->cookie = cookie;
44659 iop->cfg = *cfg;
44660
44661- return &iop->ops;
44662+ return iop;
44663 }
44664
44665 /*
44666 * It is the IOMMU driver's responsibility to ensure that the page table
44667 * is no longer accessible to the walker by this point.
44668 */
44669-void free_io_pgtable_ops(struct io_pgtable_ops *ops)
44670+void free_io_pgtable(struct io_pgtable *iop)
44671 {
44672- struct io_pgtable *iop;
44673-
44674- if (!ops)
44675+ if (!iop)
44676 return;
44677
44678- iop = container_of(ops, struct io_pgtable, ops);
44679 iop->cfg.tlb->tlb_flush_all(iop->cookie);
44680 io_pgtable_init_table[iop->fmt]->free(iop);
44681 }
44682diff --git a/drivers/iommu/io-pgtable.h b/drivers/iommu/io-pgtable.h
44683index 10e32f6..0b276c8 100644
44684--- a/drivers/iommu/io-pgtable.h
44685+++ b/drivers/iommu/io-pgtable.h
44686@@ -75,17 +75,18 @@ struct io_pgtable_cfg {
44687 * These functions map directly onto the iommu_ops member functions with
44688 * the same names.
44689 */
44690+struct io_pgtable;
44691 struct io_pgtable_ops {
44692- int (*map)(struct io_pgtable_ops *ops, unsigned long iova,
44693+ int (*map)(struct io_pgtable *iop, unsigned long iova,
44694 phys_addr_t paddr, size_t size, int prot);
44695- int (*unmap)(struct io_pgtable_ops *ops, unsigned long iova,
44696+ int (*unmap)(struct io_pgtable *iop, unsigned long iova,
44697 size_t size);
44698- phys_addr_t (*iova_to_phys)(struct io_pgtable_ops *ops,
44699+ phys_addr_t (*iova_to_phys)(struct io_pgtable *iop,
44700 unsigned long iova);
44701 };
44702
44703 /**
44704- * alloc_io_pgtable_ops() - Allocate a page table allocator for use by an IOMMU.
44705+ * alloc_io_pgtable() - Allocate a page table allocator for use by an IOMMU.
44706 *
44707 * @fmt: The page table format.
44708 * @cfg: The page table configuration. This will be modified to represent
44709@@ -94,9 +95,9 @@ struct io_pgtable_ops {
44710 * @cookie: An opaque token provided by the IOMMU driver and passed back to
44711 * the callback routines in cfg->tlb.
44712 */
44713-struct io_pgtable_ops *alloc_io_pgtable_ops(enum io_pgtable_fmt fmt,
44714- struct io_pgtable_cfg *cfg,
44715- void *cookie);
44716+struct io_pgtable *alloc_io_pgtable(enum io_pgtable_fmt fmt,
44717+ struct io_pgtable_cfg *cfg,
44718+ void *cookie);
44719
44720 /**
44721 * free_io_pgtable_ops() - Free an io_pgtable_ops structure. The caller
44722@@ -105,7 +106,7 @@ struct io_pgtable_ops *alloc_io_pgtable_ops(enum io_pgtable_fmt fmt,
44723 *
44724 * @ops: The ops returned from alloc_io_pgtable_ops.
44725 */
44726-void free_io_pgtable_ops(struct io_pgtable_ops *ops);
44727+void free_io_pgtable(struct io_pgtable *iop);
44728
44729
44730 /*
44731@@ -125,7 +126,7 @@ struct io_pgtable {
44732 enum io_pgtable_fmt fmt;
44733 void *cookie;
44734 struct io_pgtable_cfg cfg;
44735- struct io_pgtable_ops ops;
44736+ const struct io_pgtable_ops *ops;
44737 };
44738
44739 /**
44740diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
44741index 72e683d..c9db262 100644
44742--- a/drivers/iommu/iommu.c
44743+++ b/drivers/iommu/iommu.c
44744@@ -802,7 +802,7 @@ static int iommu_bus_notifier(struct notifier_block *nb,
44745 static int iommu_bus_init(struct bus_type *bus, const struct iommu_ops *ops)
44746 {
44747 int err;
44748- struct notifier_block *nb;
44749+ notifier_block_no_const *nb;
44750 struct iommu_callback_data cb = {
44751 .ops = ops,
44752 };
44753diff --git a/drivers/iommu/ipmmu-vmsa.c b/drivers/iommu/ipmmu-vmsa.c
44754index bc39bdf..e2de272 100644
44755--- a/drivers/iommu/ipmmu-vmsa.c
44756+++ b/drivers/iommu/ipmmu-vmsa.c
44757@@ -41,7 +41,7 @@ struct ipmmu_vmsa_domain {
44758 struct iommu_domain *io_domain;
44759
44760 struct io_pgtable_cfg cfg;
44761- struct io_pgtable_ops *iop;
44762+ struct io_pgtable *iop;
44763
44764 unsigned int context_id;
44765 spinlock_t lock; /* Protects mappings */
44766@@ -323,8 +323,7 @@ static int ipmmu_domain_init_context(struct ipmmu_vmsa_domain *domain)
44767 domain->cfg.oas = 40;
44768 domain->cfg.tlb = &ipmmu_gather_ops;
44769
44770- domain->iop = alloc_io_pgtable_ops(ARM_32_LPAE_S1, &domain->cfg,
44771- domain);
44772+ domain->iop = alloc_io_pgtable(ARM_32_LPAE_S1, &domain->cfg, domain);
44773 if (!domain->iop)
44774 return -EINVAL;
44775
44776@@ -482,7 +481,7 @@ static void ipmmu_domain_destroy(struct iommu_domain *io_domain)
44777 * been detached.
44778 */
44779 ipmmu_domain_destroy_context(domain);
44780- free_io_pgtable_ops(domain->iop);
44781+ free_io_pgtable(domain->iop);
44782 kfree(domain);
44783 }
44784
44785@@ -551,7 +550,7 @@ static int ipmmu_map(struct iommu_domain *io_domain, unsigned long iova,
44786 if (!domain)
44787 return -ENODEV;
44788
44789- return domain->iop->map(domain->iop, iova, paddr, size, prot);
44790+ return domain->iop->ops->map(domain->iop, iova, paddr, size, prot);
44791 }
44792
44793 static size_t ipmmu_unmap(struct iommu_domain *io_domain, unsigned long iova,
44794@@ -559,7 +558,7 @@ static size_t ipmmu_unmap(struct iommu_domain *io_domain, unsigned long iova,
44795 {
44796 struct ipmmu_vmsa_domain *domain = io_domain->priv;
44797
44798- return domain->iop->unmap(domain->iop, iova, size);
44799+ return domain->iop->ops->unmap(domain->iop, iova, size);
44800 }
44801
44802 static phys_addr_t ipmmu_iova_to_phys(struct iommu_domain *io_domain,
44803@@ -569,7 +568,7 @@ static phys_addr_t ipmmu_iova_to_phys(struct iommu_domain *io_domain,
44804
44805 /* TODO: Is locking needed ? */
44806
44807- return domain->iop->iova_to_phys(domain->iop, iova);
44808+ return domain->iop->ops->iova_to_phys(domain->iop, iova);
44809 }
44810
44811 static int ipmmu_find_utlbs(struct ipmmu_vmsa_device *mmu, struct device *dev,
44812diff --git a/drivers/iommu/irq_remapping.c b/drivers/iommu/irq_remapping.c
44813index 390079e..1da9d6c 100644
44814--- a/drivers/iommu/irq_remapping.c
44815+++ b/drivers/iommu/irq_remapping.c
44816@@ -329,7 +329,7 @@ int setup_hpet_msi_remapped(unsigned int irq, unsigned int id)
44817 void panic_if_irq_remap(const char *msg)
44818 {
44819 if (irq_remapping_enabled)
44820- panic(msg);
44821+ panic("%s", msg);
44822 }
44823
44824 static void ir_ack_apic_edge(struct irq_data *data)
44825@@ -350,10 +350,12 @@ static void ir_print_prefix(struct irq_data *data, struct seq_file *p)
44826
44827 void irq_remap_modify_chip_defaults(struct irq_chip *chip)
44828 {
44829- chip->irq_print_chip = ir_print_prefix;
44830- chip->irq_ack = ir_ack_apic_edge;
44831- chip->irq_eoi = ir_ack_apic_level;
44832- chip->irq_set_affinity = x86_io_apic_ops.set_affinity;
44833+ pax_open_kernel();
44834+ *(void **)&chip->irq_print_chip = ir_print_prefix;
44835+ *(void **)&chip->irq_ack = ir_ack_apic_edge;
44836+ *(void **)&chip->irq_eoi = ir_ack_apic_level;
44837+ *(void **)&chip->irq_set_affinity = x86_io_apic_ops.set_affinity;
44838+ pax_close_kernel();
44839 }
44840
44841 bool setup_remapped_irq(int irq, struct irq_cfg *cfg, struct irq_chip *chip)
44842diff --git a/drivers/irqchip/irq-gic.c b/drivers/irqchip/irq-gic.c
44843index 471e1cd..b53b870 100644
44844--- a/drivers/irqchip/irq-gic.c
44845+++ b/drivers/irqchip/irq-gic.c
44846@@ -84,7 +84,7 @@ static u8 gic_cpu_map[NR_GIC_CPU_IF] __read_mostly;
44847 * Supported arch specific GIC irq extension.
44848 * Default make them NULL.
44849 */
44850-struct irq_chip gic_arch_extn = {
44851+irq_chip_no_const gic_arch_extn = {
44852 .irq_eoi = NULL,
44853 .irq_mask = NULL,
44854 .irq_unmask = NULL,
44855@@ -318,7 +318,7 @@ static void gic_handle_cascade_irq(unsigned int irq, struct irq_desc *desc)
44856 chained_irq_exit(chip, desc);
44857 }
44858
44859-static struct irq_chip gic_chip = {
44860+static irq_chip_no_const gic_chip __read_only = {
44861 .name = "GIC",
44862 .irq_mask = gic_mask_irq,
44863 .irq_unmask = gic_unmask_irq,
44864diff --git a/drivers/irqchip/irq-renesas-intc-irqpin.c b/drivers/irqchip/irq-renesas-intc-irqpin.c
44865index 9a0767b..5e5f86f 100644
44866--- a/drivers/irqchip/irq-renesas-intc-irqpin.c
44867+++ b/drivers/irqchip/irq-renesas-intc-irqpin.c
44868@@ -373,7 +373,7 @@ static int intc_irqpin_probe(struct platform_device *pdev)
44869 struct intc_irqpin_iomem *i;
44870 struct resource *io[INTC_IRQPIN_REG_NR];
44871 struct resource *irq;
44872- struct irq_chip *irq_chip;
44873+ irq_chip_no_const *irq_chip;
44874 void (*enable_fn)(struct irq_data *d);
44875 void (*disable_fn)(struct irq_data *d);
44876 const char *name = dev_name(dev);
44877diff --git a/drivers/irqchip/irq-renesas-irqc.c b/drivers/irqchip/irq-renesas-irqc.c
44878index 384e6ed..7a771b2 100644
44879--- a/drivers/irqchip/irq-renesas-irqc.c
44880+++ b/drivers/irqchip/irq-renesas-irqc.c
44881@@ -151,7 +151,7 @@ static int irqc_probe(struct platform_device *pdev)
44882 struct irqc_priv *p;
44883 struct resource *io;
44884 struct resource *irq;
44885- struct irq_chip *irq_chip;
44886+ irq_chip_no_const *irq_chip;
44887 const char *name = dev_name(&pdev->dev);
44888 int ret;
44889 int k;
44890diff --git a/drivers/isdn/capi/capi.c b/drivers/isdn/capi/capi.c
44891index 6a2df32..dc962f1 100644
44892--- a/drivers/isdn/capi/capi.c
44893+++ b/drivers/isdn/capi/capi.c
44894@@ -81,8 +81,8 @@ struct capiminor {
44895
44896 struct capi20_appl *ap;
44897 u32 ncci;
44898- atomic_t datahandle;
44899- atomic_t msgid;
44900+ atomic_unchecked_t datahandle;
44901+ atomic_unchecked_t msgid;
44902
44903 struct tty_port port;
44904 int ttyinstop;
44905@@ -391,7 +391,7 @@ gen_data_b3_resp_for(struct capiminor *mp, struct sk_buff *skb)
44906 capimsg_setu16(s, 2, mp->ap->applid);
44907 capimsg_setu8 (s, 4, CAPI_DATA_B3);
44908 capimsg_setu8 (s, 5, CAPI_RESP);
44909- capimsg_setu16(s, 6, atomic_inc_return(&mp->msgid));
44910+ capimsg_setu16(s, 6, atomic_inc_return_unchecked(&mp->msgid));
44911 capimsg_setu32(s, 8, mp->ncci);
44912 capimsg_setu16(s, 12, datahandle);
44913 }
44914@@ -512,14 +512,14 @@ static void handle_minor_send(struct capiminor *mp)
44915 mp->outbytes -= len;
44916 spin_unlock_bh(&mp->outlock);
44917
44918- datahandle = atomic_inc_return(&mp->datahandle);
44919+ datahandle = atomic_inc_return_unchecked(&mp->datahandle);
44920 skb_push(skb, CAPI_DATA_B3_REQ_LEN);
44921 memset(skb->data, 0, CAPI_DATA_B3_REQ_LEN);
44922 capimsg_setu16(skb->data, 0, CAPI_DATA_B3_REQ_LEN);
44923 capimsg_setu16(skb->data, 2, mp->ap->applid);
44924 capimsg_setu8 (skb->data, 4, CAPI_DATA_B3);
44925 capimsg_setu8 (skb->data, 5, CAPI_REQ);
44926- capimsg_setu16(skb->data, 6, atomic_inc_return(&mp->msgid));
44927+ capimsg_setu16(skb->data, 6, atomic_inc_return_unchecked(&mp->msgid));
44928 capimsg_setu32(skb->data, 8, mp->ncci); /* NCCI */
44929 capimsg_setu32(skb->data, 12, (u32)(long)skb->data);/* Data32 */
44930 capimsg_setu16(skb->data, 16, len); /* Data length */
44931diff --git a/drivers/isdn/gigaset/bas-gigaset.c b/drivers/isdn/gigaset/bas-gigaset.c
44932index aecec6d..11e13c5 100644
44933--- a/drivers/isdn/gigaset/bas-gigaset.c
44934+++ b/drivers/isdn/gigaset/bas-gigaset.c
44935@@ -2565,22 +2565,22 @@ static int gigaset_post_reset(struct usb_interface *intf)
44936
44937
44938 static const struct gigaset_ops gigops = {
44939- gigaset_write_cmd,
44940- gigaset_write_room,
44941- gigaset_chars_in_buffer,
44942- gigaset_brkchars,
44943- gigaset_init_bchannel,
44944- gigaset_close_bchannel,
44945- gigaset_initbcshw,
44946- gigaset_freebcshw,
44947- gigaset_reinitbcshw,
44948- gigaset_initcshw,
44949- gigaset_freecshw,
44950- gigaset_set_modem_ctrl,
44951- gigaset_baud_rate,
44952- gigaset_set_line_ctrl,
44953- gigaset_isoc_send_skb,
44954- gigaset_isoc_input,
44955+ .write_cmd = gigaset_write_cmd,
44956+ .write_room = gigaset_write_room,
44957+ .chars_in_buffer = gigaset_chars_in_buffer,
44958+ .brkchars = gigaset_brkchars,
44959+ .init_bchannel = gigaset_init_bchannel,
44960+ .close_bchannel = gigaset_close_bchannel,
44961+ .initbcshw = gigaset_initbcshw,
44962+ .freebcshw = gigaset_freebcshw,
44963+ .reinitbcshw = gigaset_reinitbcshw,
44964+ .initcshw = gigaset_initcshw,
44965+ .freecshw = gigaset_freecshw,
44966+ .set_modem_ctrl = gigaset_set_modem_ctrl,
44967+ .baud_rate = gigaset_baud_rate,
44968+ .set_line_ctrl = gigaset_set_line_ctrl,
44969+ .send_skb = gigaset_isoc_send_skb,
44970+ .handle_input = gigaset_isoc_input,
44971 };
44972
44973 /* bas_gigaset_init
44974diff --git a/drivers/isdn/gigaset/interface.c b/drivers/isdn/gigaset/interface.c
44975index 600c79b..3752bab 100644
44976--- a/drivers/isdn/gigaset/interface.c
44977+++ b/drivers/isdn/gigaset/interface.c
44978@@ -130,9 +130,9 @@ static int if_open(struct tty_struct *tty, struct file *filp)
44979 }
44980 tty->driver_data = cs;
44981
44982- ++cs->port.count;
44983+ atomic_inc(&cs->port.count);
44984
44985- if (cs->port.count == 1) {
44986+ if (atomic_read(&cs->port.count) == 1) {
44987 tty_port_tty_set(&cs->port, tty);
44988 cs->port.low_latency = 1;
44989 }
44990@@ -156,9 +156,9 @@ static void if_close(struct tty_struct *tty, struct file *filp)
44991
44992 if (!cs->connected)
44993 gig_dbg(DEBUG_IF, "not connected"); /* nothing to do */
44994- else if (!cs->port.count)
44995+ else if (!atomic_read(&cs->port.count))
44996 dev_warn(cs->dev, "%s: device not opened\n", __func__);
44997- else if (!--cs->port.count)
44998+ else if (!atomic_dec_return(&cs->port.count))
44999 tty_port_tty_set(&cs->port, NULL);
45000
45001 mutex_unlock(&cs->mutex);
45002diff --git a/drivers/isdn/gigaset/ser-gigaset.c b/drivers/isdn/gigaset/ser-gigaset.c
45003index 8c91fd5..14f13ce 100644
45004--- a/drivers/isdn/gigaset/ser-gigaset.c
45005+++ b/drivers/isdn/gigaset/ser-gigaset.c
45006@@ -453,22 +453,22 @@ static int gigaset_set_line_ctrl(struct cardstate *cs, unsigned cflag)
45007 }
45008
45009 static const struct gigaset_ops ops = {
45010- gigaset_write_cmd,
45011- gigaset_write_room,
45012- gigaset_chars_in_buffer,
45013- gigaset_brkchars,
45014- gigaset_init_bchannel,
45015- gigaset_close_bchannel,
45016- gigaset_initbcshw,
45017- gigaset_freebcshw,
45018- gigaset_reinitbcshw,
45019- gigaset_initcshw,
45020- gigaset_freecshw,
45021- gigaset_set_modem_ctrl,
45022- gigaset_baud_rate,
45023- gigaset_set_line_ctrl,
45024- gigaset_m10x_send_skb, /* asyncdata.c */
45025- gigaset_m10x_input, /* asyncdata.c */
45026+ .write_cmd = gigaset_write_cmd,
45027+ .write_room = gigaset_write_room,
45028+ .chars_in_buffer = gigaset_chars_in_buffer,
45029+ .brkchars = gigaset_brkchars,
45030+ .init_bchannel = gigaset_init_bchannel,
45031+ .close_bchannel = gigaset_close_bchannel,
45032+ .initbcshw = gigaset_initbcshw,
45033+ .freebcshw = gigaset_freebcshw,
45034+ .reinitbcshw = gigaset_reinitbcshw,
45035+ .initcshw = gigaset_initcshw,
45036+ .freecshw = gigaset_freecshw,
45037+ .set_modem_ctrl = gigaset_set_modem_ctrl,
45038+ .baud_rate = gigaset_baud_rate,
45039+ .set_line_ctrl = gigaset_set_line_ctrl,
45040+ .send_skb = gigaset_m10x_send_skb, /* asyncdata.c */
45041+ .handle_input = gigaset_m10x_input, /* asyncdata.c */
45042 };
45043
45044
45045diff --git a/drivers/isdn/gigaset/usb-gigaset.c b/drivers/isdn/gigaset/usb-gigaset.c
45046index 5f306e2..5342f88 100644
45047--- a/drivers/isdn/gigaset/usb-gigaset.c
45048+++ b/drivers/isdn/gigaset/usb-gigaset.c
45049@@ -543,7 +543,7 @@ static int gigaset_brkchars(struct cardstate *cs, const unsigned char buf[6])
45050 gigaset_dbg_buffer(DEBUG_USBREQ, "brkchars", 6, buf);
45051 memcpy(cs->hw.usb->bchars, buf, 6);
45052 return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x19, 0x41,
45053- 0, 0, &buf, 6, 2000);
45054+ 0, 0, buf, 6, 2000);
45055 }
45056
45057 static void gigaset_freebcshw(struct bc_state *bcs)
45058@@ -862,22 +862,22 @@ static int gigaset_pre_reset(struct usb_interface *intf)
45059 }
45060
45061 static const struct gigaset_ops ops = {
45062- gigaset_write_cmd,
45063- gigaset_write_room,
45064- gigaset_chars_in_buffer,
45065- gigaset_brkchars,
45066- gigaset_init_bchannel,
45067- gigaset_close_bchannel,
45068- gigaset_initbcshw,
45069- gigaset_freebcshw,
45070- gigaset_reinitbcshw,
45071- gigaset_initcshw,
45072- gigaset_freecshw,
45073- gigaset_set_modem_ctrl,
45074- gigaset_baud_rate,
45075- gigaset_set_line_ctrl,
45076- gigaset_m10x_send_skb,
45077- gigaset_m10x_input,
45078+ .write_cmd = gigaset_write_cmd,
45079+ .write_room = gigaset_write_room,
45080+ .chars_in_buffer = gigaset_chars_in_buffer,
45081+ .brkchars = gigaset_brkchars,
45082+ .init_bchannel = gigaset_init_bchannel,
45083+ .close_bchannel = gigaset_close_bchannel,
45084+ .initbcshw = gigaset_initbcshw,
45085+ .freebcshw = gigaset_freebcshw,
45086+ .reinitbcshw = gigaset_reinitbcshw,
45087+ .initcshw = gigaset_initcshw,
45088+ .freecshw = gigaset_freecshw,
45089+ .set_modem_ctrl = gigaset_set_modem_ctrl,
45090+ .baud_rate = gigaset_baud_rate,
45091+ .set_line_ctrl = gigaset_set_line_ctrl,
45092+ .send_skb = gigaset_m10x_send_skb,
45093+ .handle_input = gigaset_m10x_input,
45094 };
45095
45096 /*
45097diff --git a/drivers/isdn/hardware/avm/b1.c b/drivers/isdn/hardware/avm/b1.c
45098index 4d9b195..455075c 100644
45099--- a/drivers/isdn/hardware/avm/b1.c
45100+++ b/drivers/isdn/hardware/avm/b1.c
45101@@ -176,7 +176,7 @@ int b1_load_t4file(avmcard *card, capiloaddatapart *t4file)
45102 }
45103 if (left) {
45104 if (t4file->user) {
45105- if (copy_from_user(buf, dp, left))
45106+ if (left > sizeof buf || copy_from_user(buf, dp, left))
45107 return -EFAULT;
45108 } else {
45109 memcpy(buf, dp, left);
45110@@ -224,7 +224,7 @@ int b1_load_config(avmcard *card, capiloaddatapart *config)
45111 }
45112 if (left) {
45113 if (config->user) {
45114- if (copy_from_user(buf, dp, left))
45115+ if (left > sizeof buf || copy_from_user(buf, dp, left))
45116 return -EFAULT;
45117 } else {
45118 memcpy(buf, dp, left);
45119diff --git a/drivers/isdn/i4l/isdn_common.c b/drivers/isdn/i4l/isdn_common.c
45120index 9b856e1..fa03c92 100644
45121--- a/drivers/isdn/i4l/isdn_common.c
45122+++ b/drivers/isdn/i4l/isdn_common.c
45123@@ -1654,6 +1654,8 @@ isdn_ioctl(struct file *file, uint cmd, ulong arg)
45124 } else
45125 return -EINVAL;
45126 case IIOCDBGVAR:
45127+ if (!capable(CAP_SYS_RAWIO))
45128+ return -EPERM;
45129 if (arg) {
45130 if (copy_to_user(argp, &dev, sizeof(ulong)))
45131 return -EFAULT;
45132diff --git a/drivers/isdn/i4l/isdn_concap.c b/drivers/isdn/i4l/isdn_concap.c
45133index 91d5730..336523e 100644
45134--- a/drivers/isdn/i4l/isdn_concap.c
45135+++ b/drivers/isdn/i4l/isdn_concap.c
45136@@ -80,9 +80,9 @@ static int isdn_concap_dl_disconn_req(struct concap_proto *concap)
45137 }
45138
45139 struct concap_device_ops isdn_concap_reliable_dl_dops = {
45140- &isdn_concap_dl_data_req,
45141- &isdn_concap_dl_connect_req,
45142- &isdn_concap_dl_disconn_req
45143+ .data_req = &isdn_concap_dl_data_req,
45144+ .connect_req = &isdn_concap_dl_connect_req,
45145+ .disconn_req = &isdn_concap_dl_disconn_req
45146 };
45147
45148 /* The following should better go into a dedicated source file such that
45149diff --git a/drivers/isdn/i4l/isdn_tty.c b/drivers/isdn/i4l/isdn_tty.c
45150index bc91261..2ef7e36 100644
45151--- a/drivers/isdn/i4l/isdn_tty.c
45152+++ b/drivers/isdn/i4l/isdn_tty.c
45153@@ -1503,9 +1503,9 @@ isdn_tty_open(struct tty_struct *tty, struct file *filp)
45154
45155 #ifdef ISDN_DEBUG_MODEM_OPEN
45156 printk(KERN_DEBUG "isdn_tty_open %s, count = %d\n", tty->name,
45157- port->count);
45158+ atomic_read(&port->count));
45159 #endif
45160- port->count++;
45161+ atomic_inc(&port->count);
45162 port->tty = tty;
45163 /*
45164 * Start up serial port
45165@@ -1549,7 +1549,7 @@ isdn_tty_close(struct tty_struct *tty, struct file *filp)
45166 #endif
45167 return;
45168 }
45169- if ((tty->count == 1) && (port->count != 1)) {
45170+ if ((tty->count == 1) && (atomic_read(&port->count) != 1)) {
45171 /*
45172 * Uh, oh. tty->count is 1, which means that the tty
45173 * structure will be freed. Info->count should always
45174@@ -1558,15 +1558,15 @@ isdn_tty_close(struct tty_struct *tty, struct file *filp)
45175 * serial port won't be shutdown.
45176 */
45177 printk(KERN_ERR "isdn_tty_close: bad port count; tty->count is 1, "
45178- "info->count is %d\n", port->count);
45179- port->count = 1;
45180+ "info->count is %d\n", atomic_read(&port->count));
45181+ atomic_set(&port->count, 1);
45182 }
45183- if (--port->count < 0) {
45184+ if (atomic_dec_return(&port->count) < 0) {
45185 printk(KERN_ERR "isdn_tty_close: bad port count for ttyi%d: %d\n",
45186- info->line, port->count);
45187- port->count = 0;
45188+ info->line, atomic_read(&port->count));
45189+ atomic_set(&port->count, 0);
45190 }
45191- if (port->count) {
45192+ if (atomic_read(&port->count)) {
45193 #ifdef ISDN_DEBUG_MODEM_OPEN
45194 printk(KERN_DEBUG "isdn_tty_close after info->count != 0\n");
45195 #endif
45196@@ -1620,7 +1620,7 @@ isdn_tty_hangup(struct tty_struct *tty)
45197 if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_hangup"))
45198 return;
45199 isdn_tty_shutdown(info);
45200- port->count = 0;
45201+ atomic_set(&port->count, 0);
45202 port->flags &= ~ASYNC_NORMAL_ACTIVE;
45203 port->tty = NULL;
45204 wake_up_interruptible(&port->open_wait);
45205@@ -1965,7 +1965,7 @@ isdn_tty_find_icall(int di, int ch, setup_parm *setup)
45206 for (i = 0; i < ISDN_MAX_CHANNELS; i++) {
45207 modem_info *info = &dev->mdm.info[i];
45208
45209- if (info->port.count == 0)
45210+ if (atomic_read(&info->port.count) == 0)
45211 continue;
45212 if ((info->emu.mdmreg[REG_SI1] & si2bit[si1]) && /* SI1 is matching */
45213 (info->emu.mdmreg[REG_SI2] == si2)) { /* SI2 is matching */
45214diff --git a/drivers/isdn/i4l/isdn_x25iface.c b/drivers/isdn/i4l/isdn_x25iface.c
45215index e2d4e58..40cd045 100644
45216--- a/drivers/isdn/i4l/isdn_x25iface.c
45217+++ b/drivers/isdn/i4l/isdn_x25iface.c
45218@@ -53,14 +53,14 @@ static int isdn_x25iface_disconn_ind(struct concap_proto *);
45219
45220
45221 static struct concap_proto_ops ix25_pops = {
45222- &isdn_x25iface_proto_new,
45223- &isdn_x25iface_proto_del,
45224- &isdn_x25iface_proto_restart,
45225- &isdn_x25iface_proto_close,
45226- &isdn_x25iface_xmit,
45227- &isdn_x25iface_receive,
45228- &isdn_x25iface_connect_ind,
45229- &isdn_x25iface_disconn_ind
45230+ .proto_new = &isdn_x25iface_proto_new,
45231+ .proto_del = &isdn_x25iface_proto_del,
45232+ .restart = &isdn_x25iface_proto_restart,
45233+ .close = &isdn_x25iface_proto_close,
45234+ .encap_and_xmit = &isdn_x25iface_xmit,
45235+ .data_ind = &isdn_x25iface_receive,
45236+ .connect_ind = &isdn_x25iface_connect_ind,
45237+ .disconn_ind = &isdn_x25iface_disconn_ind
45238 };
45239
45240 /* error message helper function */
45241diff --git a/drivers/isdn/icn/icn.c b/drivers/isdn/icn/icn.c
45242index 358a574..b4987ea 100644
45243--- a/drivers/isdn/icn/icn.c
45244+++ b/drivers/isdn/icn/icn.c
45245@@ -1045,7 +1045,7 @@ icn_writecmd(const u_char *buf, int len, int user, icn_card *card)
45246 if (count > len)
45247 count = len;
45248 if (user) {
45249- if (copy_from_user(msg, buf, count))
45250+ if (count > sizeof msg || copy_from_user(msg, buf, count))
45251 return -EFAULT;
45252 } else
45253 memcpy(msg, buf, count);
45254diff --git a/drivers/isdn/mISDN/dsp_cmx.c b/drivers/isdn/mISDN/dsp_cmx.c
45255index 87f7dff..7300125 100644
45256--- a/drivers/isdn/mISDN/dsp_cmx.c
45257+++ b/drivers/isdn/mISDN/dsp_cmx.c
45258@@ -1625,7 +1625,7 @@ unsigned long dsp_spl_jiffies; /* calculate the next time to fire */
45259 static u16 dsp_count; /* last sample count */
45260 static int dsp_count_valid; /* if we have last sample count */
45261
45262-void
45263+void __intentional_overflow(-1)
45264 dsp_cmx_send(void *arg)
45265 {
45266 struct dsp_conf *conf;
45267diff --git a/drivers/lguest/core.c b/drivers/lguest/core.c
45268index 312ffd3..9263d05 100644
45269--- a/drivers/lguest/core.c
45270+++ b/drivers/lguest/core.c
45271@@ -96,9 +96,17 @@ static __init int map_switcher(void)
45272 * The end address needs +1 because __get_vm_area allocates an
45273 * extra guard page, so we need space for that.
45274 */
45275+
45276+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
45277+ switcher_vma = __get_vm_area(TOTAL_SWITCHER_PAGES * PAGE_SIZE,
45278+ VM_ALLOC | VM_KERNEXEC, switcher_addr, switcher_addr
45279+ + (TOTAL_SWITCHER_PAGES+1) * PAGE_SIZE);
45280+#else
45281 switcher_vma = __get_vm_area(TOTAL_SWITCHER_PAGES * PAGE_SIZE,
45282 VM_ALLOC, switcher_addr, switcher_addr
45283 + (TOTAL_SWITCHER_PAGES+1) * PAGE_SIZE);
45284+#endif
45285+
45286 if (!switcher_vma) {
45287 err = -ENOMEM;
45288 printk("lguest: could not map switcher pages high\n");
45289@@ -121,7 +129,7 @@ static __init int map_switcher(void)
45290 * Now the Switcher is mapped at the right address, we can't fail!
45291 * Copy in the compiled-in Switcher code (from x86/switcher_32.S).
45292 */
45293- memcpy(switcher_vma->addr, start_switcher_text,
45294+ memcpy(switcher_vma->addr, ktla_ktva(start_switcher_text),
45295 end_switcher_text - start_switcher_text);
45296
45297 printk(KERN_INFO "lguest: mapped switcher at %p\n",
45298diff --git a/drivers/lguest/page_tables.c b/drivers/lguest/page_tables.c
45299index e3abebc9..6a35328 100644
45300--- a/drivers/lguest/page_tables.c
45301+++ b/drivers/lguest/page_tables.c
45302@@ -585,7 +585,7 @@ void pin_page(struct lg_cpu *cpu, unsigned long vaddr)
45303 /*:*/
45304
45305 #ifdef CONFIG_X86_PAE
45306-static void release_pmd(pmd_t *spmd)
45307+static void __intentional_overflow(-1) release_pmd(pmd_t *spmd)
45308 {
45309 /* If the entry's not present, there's nothing to release. */
45310 if (pmd_flags(*spmd) & _PAGE_PRESENT) {
45311diff --git a/drivers/lguest/x86/core.c b/drivers/lguest/x86/core.c
45312index 30f2aef..391c748 100644
45313--- a/drivers/lguest/x86/core.c
45314+++ b/drivers/lguest/x86/core.c
45315@@ -60,7 +60,7 @@ static struct {
45316 /* Offset from where switcher.S was compiled to where we've copied it */
45317 static unsigned long switcher_offset(void)
45318 {
45319- return switcher_addr - (unsigned long)start_switcher_text;
45320+ return switcher_addr - (unsigned long)ktla_ktva(start_switcher_text);
45321 }
45322
45323 /* This cpu's struct lguest_pages (after the Switcher text page) */
45324@@ -100,7 +100,13 @@ static void copy_in_guest_info(struct lg_cpu *cpu, struct lguest_pages *pages)
45325 * These copies are pretty cheap, so we do them unconditionally: */
45326 /* Save the current Host top-level page directory.
45327 */
45328+
45329+#ifdef CONFIG_PAX_PER_CPU_PGD
45330+ pages->state.host_cr3 = read_cr3();
45331+#else
45332 pages->state.host_cr3 = __pa(current->mm->pgd);
45333+#endif
45334+
45335 /*
45336 * Set up the Guest's page tables to see this CPU's pages (and no
45337 * other CPU's pages).
45338@@ -494,7 +500,7 @@ void __init lguest_arch_host_init(void)
45339 * compiled-in switcher code and the high-mapped copy we just made.
45340 */
45341 for (i = 0; i < IDT_ENTRIES; i++)
45342- default_idt_entries[i] += switcher_offset();
45343+ default_idt_entries[i] = ktla_ktva(default_idt_entries[i]) + switcher_offset();
45344
45345 /*
45346 * Set up the Switcher's per-cpu areas.
45347@@ -577,7 +583,7 @@ void __init lguest_arch_host_init(void)
45348 * it will be undisturbed when we switch. To change %cs and jump we
45349 * need this structure to feed to Intel's "lcall" instruction.
45350 */
45351- lguest_entry.offset = (long)switch_to_guest + switcher_offset();
45352+ lguest_entry.offset = (long)ktla_ktva(switch_to_guest) + switcher_offset();
45353 lguest_entry.segment = LGUEST_CS;
45354
45355 /*
45356diff --git a/drivers/lguest/x86/switcher_32.S b/drivers/lguest/x86/switcher_32.S
45357index 40634b0..4f5855e 100644
45358--- a/drivers/lguest/x86/switcher_32.S
45359+++ b/drivers/lguest/x86/switcher_32.S
45360@@ -87,6 +87,7 @@
45361 #include <asm/page.h>
45362 #include <asm/segment.h>
45363 #include <asm/lguest.h>
45364+#include <asm/processor-flags.h>
45365
45366 // We mark the start of the code to copy
45367 // It's placed in .text tho it's never run here
45368@@ -149,6 +150,13 @@ ENTRY(switch_to_guest)
45369 // Changes type when we load it: damn Intel!
45370 // For after we switch over our page tables
45371 // That entry will be read-only: we'd crash.
45372+
45373+#ifdef CONFIG_PAX_KERNEXEC
45374+ mov %cr0, %edx
45375+ xor $X86_CR0_WP, %edx
45376+ mov %edx, %cr0
45377+#endif
45378+
45379 movl $(GDT_ENTRY_TSS*8), %edx
45380 ltr %dx
45381
45382@@ -157,9 +165,15 @@ ENTRY(switch_to_guest)
45383 // Let's clear it again for our return.
45384 // The GDT descriptor of the Host
45385 // Points to the table after two "size" bytes
45386- movl (LGUEST_PAGES_host_gdt_desc+2)(%eax), %edx
45387+ movl (LGUEST_PAGES_host_gdt_desc+2)(%eax), %eax
45388 // Clear "used" from type field (byte 5, bit 2)
45389- andb $0xFD, (GDT_ENTRY_TSS*8 + 5)(%edx)
45390+ andb $0xFD, (GDT_ENTRY_TSS*8 + 5)(%eax)
45391+
45392+#ifdef CONFIG_PAX_KERNEXEC
45393+ mov %cr0, %eax
45394+ xor $X86_CR0_WP, %eax
45395+ mov %eax, %cr0
45396+#endif
45397
45398 // Once our page table's switched, the Guest is live!
45399 // The Host fades as we run this final step.
45400@@ -295,13 +309,12 @@ deliver_to_host:
45401 // I consulted gcc, and it gave
45402 // These instructions, which I gladly credit:
45403 leal (%edx,%ebx,8), %eax
45404- movzwl (%eax),%edx
45405- movl 4(%eax), %eax
45406- xorw %ax, %ax
45407- orl %eax, %edx
45408+ movl 4(%eax), %edx
45409+ movw (%eax), %dx
45410 // Now the address of the handler's in %edx
45411 // We call it now: its "iret" drops us home.
45412- jmp *%edx
45413+ ljmp $__KERNEL_CS, $1f
45414+1: jmp *%edx
45415
45416 // Every interrupt can come to us here
45417 // But we must truly tell each apart.
45418diff --git a/drivers/md/bcache/closure.h b/drivers/md/bcache/closure.h
45419index a08e3ee..df8ade2 100644
45420--- a/drivers/md/bcache/closure.h
45421+++ b/drivers/md/bcache/closure.h
45422@@ -238,7 +238,7 @@ static inline void closure_set_stopped(struct closure *cl)
45423 static inline void set_closure_fn(struct closure *cl, closure_fn *fn,
45424 struct workqueue_struct *wq)
45425 {
45426- BUG_ON(object_is_on_stack(cl));
45427+ BUG_ON(object_starts_on_stack(cl));
45428 closure_set_ip(cl);
45429 cl->fn = fn;
45430 cl->wq = wq;
45431diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c
45432index 3a57679..c58cdaf 100644
45433--- a/drivers/md/bitmap.c
45434+++ b/drivers/md/bitmap.c
45435@@ -1786,7 +1786,7 @@ void bitmap_status(struct seq_file *seq, struct bitmap *bitmap)
45436 chunk_kb ? "KB" : "B");
45437 if (bitmap->storage.file) {
45438 seq_printf(seq, ", file: ");
45439- seq_path(seq, &bitmap->storage.file->f_path, " \t\n");
45440+ seq_path(seq, &bitmap->storage.file->f_path, " \t\n\\");
45441 }
45442
45443 seq_printf(seq, "\n");
45444diff --git a/drivers/md/dm-ioctl.c b/drivers/md/dm-ioctl.c
45445index c8a18e4..0ab43e5 100644
45446--- a/drivers/md/dm-ioctl.c
45447+++ b/drivers/md/dm-ioctl.c
45448@@ -1772,7 +1772,7 @@ static int validate_params(uint cmd, struct dm_ioctl *param)
45449 cmd == DM_LIST_VERSIONS_CMD)
45450 return 0;
45451
45452- if ((cmd == DM_DEV_CREATE_CMD)) {
45453+ if (cmd == DM_DEV_CREATE_CMD) {
45454 if (!*param->name) {
45455 DMWARN("name not supplied when creating device");
45456 return -EINVAL;
45457diff --git a/drivers/md/dm-raid1.c b/drivers/md/dm-raid1.c
45458index 089d627..ef7352e 100644
45459--- a/drivers/md/dm-raid1.c
45460+++ b/drivers/md/dm-raid1.c
45461@@ -40,7 +40,7 @@ enum dm_raid1_error {
45462
45463 struct mirror {
45464 struct mirror_set *ms;
45465- atomic_t error_count;
45466+ atomic_unchecked_t error_count;
45467 unsigned long error_type;
45468 struct dm_dev *dev;
45469 sector_t offset;
45470@@ -186,7 +186,7 @@ static struct mirror *get_valid_mirror(struct mirror_set *ms)
45471 struct mirror *m;
45472
45473 for (m = ms->mirror; m < ms->mirror + ms->nr_mirrors; m++)
45474- if (!atomic_read(&m->error_count))
45475+ if (!atomic_read_unchecked(&m->error_count))
45476 return m;
45477
45478 return NULL;
45479@@ -218,7 +218,7 @@ static void fail_mirror(struct mirror *m, enum dm_raid1_error error_type)
45480 * simple way to tell if a device has encountered
45481 * errors.
45482 */
45483- atomic_inc(&m->error_count);
45484+ atomic_inc_unchecked(&m->error_count);
45485
45486 if (test_and_set_bit(error_type, &m->error_type))
45487 return;
45488@@ -409,7 +409,7 @@ static struct mirror *choose_mirror(struct mirror_set *ms, sector_t sector)
45489 struct mirror *m = get_default_mirror(ms);
45490
45491 do {
45492- if (likely(!atomic_read(&m->error_count)))
45493+ if (likely(!atomic_read_unchecked(&m->error_count)))
45494 return m;
45495
45496 if (m-- == ms->mirror)
45497@@ -423,7 +423,7 @@ static int default_ok(struct mirror *m)
45498 {
45499 struct mirror *default_mirror = get_default_mirror(m->ms);
45500
45501- return !atomic_read(&default_mirror->error_count);
45502+ return !atomic_read_unchecked(&default_mirror->error_count);
45503 }
45504
45505 static int mirror_available(struct mirror_set *ms, struct bio *bio)
45506@@ -560,7 +560,7 @@ static void do_reads(struct mirror_set *ms, struct bio_list *reads)
45507 */
45508 if (likely(region_in_sync(ms, region, 1)))
45509 m = choose_mirror(ms, bio->bi_iter.bi_sector);
45510- else if (m && atomic_read(&m->error_count))
45511+ else if (m && atomic_read_unchecked(&m->error_count))
45512 m = NULL;
45513
45514 if (likely(m))
45515@@ -936,7 +936,7 @@ static int get_mirror(struct mirror_set *ms, struct dm_target *ti,
45516 }
45517
45518 ms->mirror[mirror].ms = ms;
45519- atomic_set(&(ms->mirror[mirror].error_count), 0);
45520+ atomic_set_unchecked(&(ms->mirror[mirror].error_count), 0);
45521 ms->mirror[mirror].error_type = 0;
45522 ms->mirror[mirror].offset = offset;
45523
45524@@ -1351,7 +1351,7 @@ static void mirror_resume(struct dm_target *ti)
45525 */
45526 static char device_status_char(struct mirror *m)
45527 {
45528- if (!atomic_read(&(m->error_count)))
45529+ if (!atomic_read_unchecked(&(m->error_count)))
45530 return 'A';
45531
45532 return (test_bit(DM_RAID1_FLUSH_ERROR, &(m->error_type))) ? 'F' :
45533diff --git a/drivers/md/dm-stats.c b/drivers/md/dm-stats.c
45534index f478a4c..4b8e5ef 100644
45535--- a/drivers/md/dm-stats.c
45536+++ b/drivers/md/dm-stats.c
45537@@ -382,7 +382,7 @@ do_sync_free:
45538 synchronize_rcu_expedited();
45539 dm_stat_free(&s->rcu_head);
45540 } else {
45541- ACCESS_ONCE(dm_stat_need_rcu_barrier) = 1;
45542+ ACCESS_ONCE_RW(dm_stat_need_rcu_barrier) = 1;
45543 call_rcu(&s->rcu_head, dm_stat_free);
45544 }
45545 return 0;
45546@@ -554,8 +554,8 @@ void dm_stats_account_io(struct dm_stats *stats, unsigned long bi_rw,
45547 ((bi_rw & (REQ_WRITE | REQ_DISCARD)) ==
45548 (ACCESS_ONCE(last->last_rw) & (REQ_WRITE | REQ_DISCARD)))
45549 ));
45550- ACCESS_ONCE(last->last_sector) = end_sector;
45551- ACCESS_ONCE(last->last_rw) = bi_rw;
45552+ ACCESS_ONCE_RW(last->last_sector) = end_sector;
45553+ ACCESS_ONCE_RW(last->last_rw) = bi_rw;
45554 }
45555
45556 rcu_read_lock();
45557diff --git a/drivers/md/dm-stripe.c b/drivers/md/dm-stripe.c
45558index f8b37d4..5c5cafd 100644
45559--- a/drivers/md/dm-stripe.c
45560+++ b/drivers/md/dm-stripe.c
45561@@ -21,7 +21,7 @@ struct stripe {
45562 struct dm_dev *dev;
45563 sector_t physical_start;
45564
45565- atomic_t error_count;
45566+ atomic_unchecked_t error_count;
45567 };
45568
45569 struct stripe_c {
45570@@ -188,7 +188,7 @@ static int stripe_ctr(struct dm_target *ti, unsigned int argc, char **argv)
45571 kfree(sc);
45572 return r;
45573 }
45574- atomic_set(&(sc->stripe[i].error_count), 0);
45575+ atomic_set_unchecked(&(sc->stripe[i].error_count), 0);
45576 }
45577
45578 ti->private = sc;
45579@@ -332,7 +332,7 @@ static void stripe_status(struct dm_target *ti, status_type_t type,
45580 DMEMIT("%d ", sc->stripes);
45581 for (i = 0; i < sc->stripes; i++) {
45582 DMEMIT("%s ", sc->stripe[i].dev->name);
45583- buffer[i] = atomic_read(&(sc->stripe[i].error_count)) ?
45584+ buffer[i] = atomic_read_unchecked(&(sc->stripe[i].error_count)) ?
45585 'D' : 'A';
45586 }
45587 buffer[i] = '\0';
45588@@ -377,8 +377,8 @@ static int stripe_end_io(struct dm_target *ti, struct bio *bio, int error)
45589 */
45590 for (i = 0; i < sc->stripes; i++)
45591 if (!strcmp(sc->stripe[i].dev->name, major_minor)) {
45592- atomic_inc(&(sc->stripe[i].error_count));
45593- if (atomic_read(&(sc->stripe[i].error_count)) <
45594+ atomic_inc_unchecked(&(sc->stripe[i].error_count));
45595+ if (atomic_read_unchecked(&(sc->stripe[i].error_count)) <
45596 DM_IO_ERROR_THRESHOLD)
45597 schedule_work(&sc->trigger_event);
45598 }
45599diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
45600index 757f1ba..bf9ec8f 100644
45601--- a/drivers/md/dm-table.c
45602+++ b/drivers/md/dm-table.c
45603@@ -303,7 +303,7 @@ static int device_area_is_invalid(struct dm_target *ti, struct dm_dev *dev,
45604 if (!dev_size)
45605 return 0;
45606
45607- if ((start >= dev_size) || (start + len > dev_size)) {
45608+ if ((start >= dev_size) || (len > dev_size - start)) {
45609 DMWARN("%s: %s too small for target: "
45610 "start=%llu, len=%llu, dev_size=%llu",
45611 dm_device_name(ti->table->md), bdevname(bdev, b),
45612diff --git a/drivers/md/dm-thin-metadata.c b/drivers/md/dm-thin-metadata.c
45613index 79f6941..b33b4e0 100644
45614--- a/drivers/md/dm-thin-metadata.c
45615+++ b/drivers/md/dm-thin-metadata.c
45616@@ -404,7 +404,7 @@ static void __setup_btree_details(struct dm_pool_metadata *pmd)
45617 {
45618 pmd->info.tm = pmd->tm;
45619 pmd->info.levels = 2;
45620- pmd->info.value_type.context = pmd->data_sm;
45621+ pmd->info.value_type.context = (dm_space_map_no_const *)pmd->data_sm;
45622 pmd->info.value_type.size = sizeof(__le64);
45623 pmd->info.value_type.inc = data_block_inc;
45624 pmd->info.value_type.dec = data_block_dec;
45625@@ -423,7 +423,7 @@ static void __setup_btree_details(struct dm_pool_metadata *pmd)
45626
45627 pmd->bl_info.tm = pmd->tm;
45628 pmd->bl_info.levels = 1;
45629- pmd->bl_info.value_type.context = pmd->data_sm;
45630+ pmd->bl_info.value_type.context = (dm_space_map_no_const *)pmd->data_sm;
45631 pmd->bl_info.value_type.size = sizeof(__le64);
45632 pmd->bl_info.value_type.inc = data_block_inc;
45633 pmd->bl_info.value_type.dec = data_block_dec;
45634diff --git a/drivers/md/dm.c b/drivers/md/dm.c
45635index beda011..de57372 100644
45636--- a/drivers/md/dm.c
45637+++ b/drivers/md/dm.c
45638@@ -188,9 +188,9 @@ struct mapped_device {
45639 /*
45640 * Event handling.
45641 */
45642- atomic_t event_nr;
45643+ atomic_unchecked_t event_nr;
45644 wait_queue_head_t eventq;
45645- atomic_t uevent_seq;
45646+ atomic_unchecked_t uevent_seq;
45647 struct list_head uevent_list;
45648 spinlock_t uevent_lock; /* Protect access to uevent_list */
45649
45650@@ -2170,8 +2170,8 @@ static struct mapped_device *alloc_dev(int minor)
45651 spin_lock_init(&md->deferred_lock);
45652 atomic_set(&md->holders, 1);
45653 atomic_set(&md->open_count, 0);
45654- atomic_set(&md->event_nr, 0);
45655- atomic_set(&md->uevent_seq, 0);
45656+ atomic_set_unchecked(&md->event_nr, 0);
45657+ atomic_set_unchecked(&md->uevent_seq, 0);
45658 INIT_LIST_HEAD(&md->uevent_list);
45659 INIT_LIST_HEAD(&md->table_devices);
45660 spin_lock_init(&md->uevent_lock);
45661@@ -2336,7 +2336,7 @@ static void event_callback(void *context)
45662
45663 dm_send_uevents(&uevents, &disk_to_dev(md->disk)->kobj);
45664
45665- atomic_inc(&md->event_nr);
45666+ atomic_inc_unchecked(&md->event_nr);
45667 wake_up(&md->eventq);
45668 }
45669
45670@@ -3182,18 +3182,18 @@ int dm_kobject_uevent(struct mapped_device *md, enum kobject_action action,
45671
45672 uint32_t dm_next_uevent_seq(struct mapped_device *md)
45673 {
45674- return atomic_add_return(1, &md->uevent_seq);
45675+ return atomic_add_return_unchecked(1, &md->uevent_seq);
45676 }
45677
45678 uint32_t dm_get_event_nr(struct mapped_device *md)
45679 {
45680- return atomic_read(&md->event_nr);
45681+ return atomic_read_unchecked(&md->event_nr);
45682 }
45683
45684 int dm_wait_event(struct mapped_device *md, int event_nr)
45685 {
45686 return wait_event_interruptible(md->eventq,
45687- (event_nr != atomic_read(&md->event_nr)));
45688+ (event_nr != atomic_read_unchecked(&md->event_nr)));
45689 }
45690
45691 void dm_uevent_add(struct mapped_device *md, struct list_head *elist)
45692diff --git a/drivers/md/md.c b/drivers/md/md.c
45693index b7bf8ee..ee17152 100644
45694--- a/drivers/md/md.c
45695+++ b/drivers/md/md.c
45696@@ -191,10 +191,10 @@ EXPORT_SYMBOL_GPL(bio_clone_mddev);
45697 * start build, activate spare
45698 */
45699 static DECLARE_WAIT_QUEUE_HEAD(md_event_waiters);
45700-static atomic_t md_event_count;
45701+static atomic_unchecked_t md_event_count;
45702 void md_new_event(struct mddev *mddev)
45703 {
45704- atomic_inc(&md_event_count);
45705+ atomic_inc_unchecked(&md_event_count);
45706 wake_up(&md_event_waiters);
45707 }
45708 EXPORT_SYMBOL_GPL(md_new_event);
45709@@ -204,7 +204,7 @@ EXPORT_SYMBOL_GPL(md_new_event);
45710 */
45711 static void md_new_event_inintr(struct mddev *mddev)
45712 {
45713- atomic_inc(&md_event_count);
45714+ atomic_inc_unchecked(&md_event_count);
45715 wake_up(&md_event_waiters);
45716 }
45717
45718@@ -1442,7 +1442,7 @@ static int super_1_load(struct md_rdev *rdev, struct md_rdev *refdev, int minor_
45719 if ((le32_to_cpu(sb->feature_map) & MD_FEATURE_RESHAPE_ACTIVE) &&
45720 (le32_to_cpu(sb->feature_map) & MD_FEATURE_NEW_OFFSET))
45721 rdev->new_data_offset += (s32)le32_to_cpu(sb->new_offset);
45722- atomic_set(&rdev->corrected_errors, le32_to_cpu(sb->cnt_corrected_read));
45723+ atomic_set_unchecked(&rdev->corrected_errors, le32_to_cpu(sb->cnt_corrected_read));
45724
45725 rdev->sb_size = le32_to_cpu(sb->max_dev) * 2 + 256;
45726 bmask = queue_logical_block_size(rdev->bdev->bd_disk->queue)-1;
45727@@ -1693,7 +1693,7 @@ static void super_1_sync(struct mddev *mddev, struct md_rdev *rdev)
45728 else
45729 sb->resync_offset = cpu_to_le64(0);
45730
45731- sb->cnt_corrected_read = cpu_to_le32(atomic_read(&rdev->corrected_errors));
45732+ sb->cnt_corrected_read = cpu_to_le32(atomic_read_unchecked(&rdev->corrected_errors));
45733
45734 sb->raid_disks = cpu_to_le32(mddev->raid_disks);
45735 sb->size = cpu_to_le64(mddev->dev_sectors);
45736@@ -2564,7 +2564,7 @@ __ATTR_PREALLOC(state, S_IRUGO|S_IWUSR, state_show, state_store);
45737 static ssize_t
45738 errors_show(struct md_rdev *rdev, char *page)
45739 {
45740- return sprintf(page, "%d\n", atomic_read(&rdev->corrected_errors));
45741+ return sprintf(page, "%d\n", atomic_read_unchecked(&rdev->corrected_errors));
45742 }
45743
45744 static ssize_t
45745@@ -2573,7 +2573,7 @@ errors_store(struct md_rdev *rdev, const char *buf, size_t len)
45746 char *e;
45747 unsigned long n = simple_strtoul(buf, &e, 10);
45748 if (*buf && (*e == 0 || *e == '\n')) {
45749- atomic_set(&rdev->corrected_errors, n);
45750+ atomic_set_unchecked(&rdev->corrected_errors, n);
45751 return len;
45752 }
45753 return -EINVAL;
45754@@ -3009,8 +3009,8 @@ int md_rdev_init(struct md_rdev *rdev)
45755 rdev->sb_loaded = 0;
45756 rdev->bb_page = NULL;
45757 atomic_set(&rdev->nr_pending, 0);
45758- atomic_set(&rdev->read_errors, 0);
45759- atomic_set(&rdev->corrected_errors, 0);
45760+ atomic_set_unchecked(&rdev->read_errors, 0);
45761+ atomic_set_unchecked(&rdev->corrected_errors, 0);
45762
45763 INIT_LIST_HEAD(&rdev->same_set);
45764 init_waitqueue_head(&rdev->blocked_wait);
45765@@ -7086,7 +7086,7 @@ static int md_seq_show(struct seq_file *seq, void *v)
45766
45767 spin_unlock(&pers_lock);
45768 seq_printf(seq, "\n");
45769- seq->poll_event = atomic_read(&md_event_count);
45770+ seq->poll_event = atomic_read_unchecked(&md_event_count);
45771 return 0;
45772 }
45773 if (v == (void*)2) {
45774@@ -7189,7 +7189,7 @@ static int md_seq_open(struct inode *inode, struct file *file)
45775 return error;
45776
45777 seq = file->private_data;
45778- seq->poll_event = atomic_read(&md_event_count);
45779+ seq->poll_event = atomic_read_unchecked(&md_event_count);
45780 return error;
45781 }
45782
45783@@ -7206,7 +7206,7 @@ static unsigned int mdstat_poll(struct file *filp, poll_table *wait)
45784 /* always allow read */
45785 mask = POLLIN | POLLRDNORM;
45786
45787- if (seq->poll_event != atomic_read(&md_event_count))
45788+ if (seq->poll_event != atomic_read_unchecked(&md_event_count))
45789 mask |= POLLERR | POLLPRI;
45790 return mask;
45791 }
45792@@ -7253,7 +7253,7 @@ static int is_mddev_idle(struct mddev *mddev, int init)
45793 struct gendisk *disk = rdev->bdev->bd_contains->bd_disk;
45794 curr_events = (int)part_stat_read(&disk->part0, sectors[0]) +
45795 (int)part_stat_read(&disk->part0, sectors[1]) -
45796- atomic_read(&disk->sync_io);
45797+ atomic_read_unchecked(&disk->sync_io);
45798 /* sync IO will cause sync_io to increase before the disk_stats
45799 * as sync_io is counted when a request starts, and
45800 * disk_stats is counted when it completes.
45801diff --git a/drivers/md/md.h b/drivers/md/md.h
45802index 318ca8f..31e4478 100644
45803--- a/drivers/md/md.h
45804+++ b/drivers/md/md.h
45805@@ -94,13 +94,13 @@ struct md_rdev {
45806 * only maintained for arrays that
45807 * support hot removal
45808 */
45809- atomic_t read_errors; /* number of consecutive read errors that
45810+ atomic_unchecked_t read_errors; /* number of consecutive read errors that
45811 * we have tried to ignore.
45812 */
45813 struct timespec last_read_error; /* monotonic time since our
45814 * last read error
45815 */
45816- atomic_t corrected_errors; /* number of corrected read errors,
45817+ atomic_unchecked_t corrected_errors; /* number of corrected read errors,
45818 * for reporting to userspace and storing
45819 * in superblock.
45820 */
45821@@ -476,7 +476,7 @@ extern void mddev_unlock(struct mddev *mddev);
45822
45823 static inline void md_sync_acct(struct block_device *bdev, unsigned long nr_sectors)
45824 {
45825- atomic_add(nr_sectors, &bdev->bd_contains->bd_disk->sync_io);
45826+ atomic_add_unchecked(nr_sectors, &bdev->bd_contains->bd_disk->sync_io);
45827 }
45828
45829 struct md_personality
45830diff --git a/drivers/md/persistent-data/dm-space-map-metadata.c b/drivers/md/persistent-data/dm-space-map-metadata.c
45831index e8a9042..35bd145 100644
45832--- a/drivers/md/persistent-data/dm-space-map-metadata.c
45833+++ b/drivers/md/persistent-data/dm-space-map-metadata.c
45834@@ -683,7 +683,7 @@ static int sm_metadata_extend(struct dm_space_map *sm, dm_block_t extra_blocks)
45835 * Flick into a mode where all blocks get allocated in the new area.
45836 */
45837 smm->begin = old_len;
45838- memcpy(sm, &bootstrap_ops, sizeof(*sm));
45839+ memcpy((void *)sm, &bootstrap_ops, sizeof(*sm));
45840
45841 /*
45842 * Extend.
45843@@ -714,7 +714,7 @@ out:
45844 /*
45845 * Switch back to normal behaviour.
45846 */
45847- memcpy(sm, &ops, sizeof(*sm));
45848+ memcpy((void *)sm, &ops, sizeof(*sm));
45849 return r;
45850 }
45851
45852diff --git a/drivers/md/persistent-data/dm-space-map.h b/drivers/md/persistent-data/dm-space-map.h
45853index 3e6d115..ffecdeb 100644
45854--- a/drivers/md/persistent-data/dm-space-map.h
45855+++ b/drivers/md/persistent-data/dm-space-map.h
45856@@ -71,6 +71,7 @@ struct dm_space_map {
45857 dm_sm_threshold_fn fn,
45858 void *context);
45859 };
45860+typedef struct dm_space_map __no_const dm_space_map_no_const;
45861
45862 /*----------------------------------------------------------------*/
45863
45864diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
45865index d34e238..34f8d98 100644
45866--- a/drivers/md/raid1.c
45867+++ b/drivers/md/raid1.c
45868@@ -1922,7 +1922,7 @@ static int fix_sync_read_error(struct r1bio *r1_bio)
45869 if (r1_sync_page_io(rdev, sect, s,
45870 bio->bi_io_vec[idx].bv_page,
45871 READ) != 0)
45872- atomic_add(s, &rdev->corrected_errors);
45873+ atomic_add_unchecked(s, &rdev->corrected_errors);
45874 }
45875 sectors -= s;
45876 sect += s;
45877@@ -2155,7 +2155,7 @@ static void fix_read_error(struct r1conf *conf, int read_disk,
45878 !test_bit(Faulty, &rdev->flags)) {
45879 if (r1_sync_page_io(rdev, sect, s,
45880 conf->tmppage, READ)) {
45881- atomic_add(s, &rdev->corrected_errors);
45882+ atomic_add_unchecked(s, &rdev->corrected_errors);
45883 printk(KERN_INFO
45884 "md/raid1:%s: read error corrected "
45885 "(%d sectors at %llu on %s)\n",
45886diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
45887index a7196c4..439f012 100644
45888--- a/drivers/md/raid10.c
45889+++ b/drivers/md/raid10.c
45890@@ -1934,7 +1934,7 @@ static void end_sync_read(struct bio *bio, int error)
45891 /* The write handler will notice the lack of
45892 * R10BIO_Uptodate and record any errors etc
45893 */
45894- atomic_add(r10_bio->sectors,
45895+ atomic_add_unchecked(r10_bio->sectors,
45896 &conf->mirrors[d].rdev->corrected_errors);
45897
45898 /* for reconstruct, we always reschedule after a read.
45899@@ -2291,7 +2291,7 @@ static void check_decay_read_errors(struct mddev *mddev, struct md_rdev *rdev)
45900 {
45901 struct timespec cur_time_mon;
45902 unsigned long hours_since_last;
45903- unsigned int read_errors = atomic_read(&rdev->read_errors);
45904+ unsigned int read_errors = atomic_read_unchecked(&rdev->read_errors);
45905
45906 ktime_get_ts(&cur_time_mon);
45907
45908@@ -2313,9 +2313,9 @@ static void check_decay_read_errors(struct mddev *mddev, struct md_rdev *rdev)
45909 * overflowing the shift of read_errors by hours_since_last.
45910 */
45911 if (hours_since_last >= 8 * sizeof(read_errors))
45912- atomic_set(&rdev->read_errors, 0);
45913+ atomic_set_unchecked(&rdev->read_errors, 0);
45914 else
45915- atomic_set(&rdev->read_errors, read_errors >> hours_since_last);
45916+ atomic_set_unchecked(&rdev->read_errors, read_errors >> hours_since_last);
45917 }
45918
45919 static int r10_sync_page_io(struct md_rdev *rdev, sector_t sector,
45920@@ -2369,8 +2369,8 @@ static void fix_read_error(struct r10conf *conf, struct mddev *mddev, struct r10
45921 return;
45922
45923 check_decay_read_errors(mddev, rdev);
45924- atomic_inc(&rdev->read_errors);
45925- if (atomic_read(&rdev->read_errors) > max_read_errors) {
45926+ atomic_inc_unchecked(&rdev->read_errors);
45927+ if (atomic_read_unchecked(&rdev->read_errors) > max_read_errors) {
45928 char b[BDEVNAME_SIZE];
45929 bdevname(rdev->bdev, b);
45930
45931@@ -2378,7 +2378,7 @@ static void fix_read_error(struct r10conf *conf, struct mddev *mddev, struct r10
45932 "md/raid10:%s: %s: Raid device exceeded "
45933 "read_error threshold [cur %d:max %d]\n",
45934 mdname(mddev), b,
45935- atomic_read(&rdev->read_errors), max_read_errors);
45936+ atomic_read_unchecked(&rdev->read_errors), max_read_errors);
45937 printk(KERN_NOTICE
45938 "md/raid10:%s: %s: Failing raid device\n",
45939 mdname(mddev), b);
45940@@ -2533,7 +2533,7 @@ static void fix_read_error(struct r10conf *conf, struct mddev *mddev, struct r10
45941 sect +
45942 choose_data_offset(r10_bio, rdev)),
45943 bdevname(rdev->bdev, b));
45944- atomic_add(s, &rdev->corrected_errors);
45945+ atomic_add_unchecked(s, &rdev->corrected_errors);
45946 }
45947
45948 rdev_dec_pending(rdev, mddev);
45949diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
45950index 007ab86..d11593d 100644
45951--- a/drivers/md/raid5.c
45952+++ b/drivers/md/raid5.c
45953@@ -947,23 +947,23 @@ async_copy_data(int frombio, struct bio *bio, struct page **page,
45954 struct bio_vec bvl;
45955 struct bvec_iter iter;
45956 struct page *bio_page;
45957- int page_offset;
45958+ s64 page_offset;
45959 struct async_submit_ctl submit;
45960 enum async_tx_flags flags = 0;
45961
45962 if (bio->bi_iter.bi_sector >= sector)
45963- page_offset = (signed)(bio->bi_iter.bi_sector - sector) * 512;
45964+ page_offset = (s64)(bio->bi_iter.bi_sector - sector) * 512;
45965 else
45966- page_offset = (signed)(sector - bio->bi_iter.bi_sector) * -512;
45967+ page_offset = (s64)(sector - bio->bi_iter.bi_sector) * -512;
45968
45969 if (frombio)
45970 flags |= ASYNC_TX_FENCE;
45971 init_async_submit(&submit, flags, tx, NULL, NULL, NULL);
45972
45973 bio_for_each_segment(bvl, bio, iter) {
45974- int len = bvl.bv_len;
45975- int clen;
45976- int b_offset = 0;
45977+ s64 len = bvl.bv_len;
45978+ s64 clen;
45979+ s64 b_offset = 0;
45980
45981 if (page_offset < 0) {
45982 b_offset = -page_offset;
45983@@ -1727,6 +1727,10 @@ static int grow_one_stripe(struct r5conf *conf, int hash)
45984 return 1;
45985 }
45986
45987+#ifdef CONFIG_GRKERNSEC_HIDESYM
45988+static atomic_unchecked_t raid5_cache_id = ATOMIC_INIT(0);
45989+#endif
45990+
45991 static int grow_stripes(struct r5conf *conf, int num)
45992 {
45993 struct kmem_cache *sc;
45994@@ -1738,7 +1742,11 @@ static int grow_stripes(struct r5conf *conf, int num)
45995 "raid%d-%s", conf->level, mdname(conf->mddev));
45996 else
45997 sprintf(conf->cache_name[0],
45998+#ifdef CONFIG_GRKERNSEC_HIDESYM
45999+ "raid%d-%08lx", conf->level, atomic_inc_return_unchecked(&raid5_cache_id));
46000+#else
46001 "raid%d-%p", conf->level, conf->mddev);
46002+#endif
46003 sprintf(conf->cache_name[1], "%s-alt", conf->cache_name[0]);
46004
46005 conf->active_name = 0;
46006@@ -2015,21 +2023,21 @@ static void raid5_end_read_request(struct bio * bi, int error)
46007 mdname(conf->mddev), STRIPE_SECTORS,
46008 (unsigned long long)s,
46009 bdevname(rdev->bdev, b));
46010- atomic_add(STRIPE_SECTORS, &rdev->corrected_errors);
46011+ atomic_add_unchecked(STRIPE_SECTORS, &rdev->corrected_errors);
46012 clear_bit(R5_ReadError, &sh->dev[i].flags);
46013 clear_bit(R5_ReWrite, &sh->dev[i].flags);
46014 } else if (test_bit(R5_ReadNoMerge, &sh->dev[i].flags))
46015 clear_bit(R5_ReadNoMerge, &sh->dev[i].flags);
46016
46017- if (atomic_read(&rdev->read_errors))
46018- atomic_set(&rdev->read_errors, 0);
46019+ if (atomic_read_unchecked(&rdev->read_errors))
46020+ atomic_set_unchecked(&rdev->read_errors, 0);
46021 } else {
46022 const char *bdn = bdevname(rdev->bdev, b);
46023 int retry = 0;
46024 int set_bad = 0;
46025
46026 clear_bit(R5_UPTODATE, &sh->dev[i].flags);
46027- atomic_inc(&rdev->read_errors);
46028+ atomic_inc_unchecked(&rdev->read_errors);
46029 if (test_bit(R5_ReadRepl, &sh->dev[i].flags))
46030 printk_ratelimited(
46031 KERN_WARNING
46032@@ -2057,7 +2065,7 @@ static void raid5_end_read_request(struct bio * bi, int error)
46033 mdname(conf->mddev),
46034 (unsigned long long)s,
46035 bdn);
46036- } else if (atomic_read(&rdev->read_errors)
46037+ } else if (atomic_read_unchecked(&rdev->read_errors)
46038 > conf->max_nr_stripes)
46039 printk(KERN_WARNING
46040 "md/raid:%s: Too many read errors, failing device %s.\n",
46041diff --git a/drivers/media/dvb-core/dvbdev.c b/drivers/media/dvb-core/dvbdev.c
46042index 983db75..ef9248c 100644
46043--- a/drivers/media/dvb-core/dvbdev.c
46044+++ b/drivers/media/dvb-core/dvbdev.c
46045@@ -185,7 +185,7 @@ int dvb_register_device(struct dvb_adapter *adap, struct dvb_device **pdvbdev,
46046 const struct dvb_device *template, void *priv, int type)
46047 {
46048 struct dvb_device *dvbdev;
46049- struct file_operations *dvbdevfops;
46050+ file_operations_no_const *dvbdevfops;
46051 struct device *clsdev;
46052 int minor;
46053 int id;
46054diff --git a/drivers/media/dvb-frontends/af9033.h b/drivers/media/dvb-frontends/af9033.h
46055index 6ad22b6..6e90e2a 100644
46056--- a/drivers/media/dvb-frontends/af9033.h
46057+++ b/drivers/media/dvb-frontends/af9033.h
46058@@ -96,6 +96,6 @@ struct af9033_ops {
46059 int (*pid_filter_ctrl)(struct dvb_frontend *fe, int onoff);
46060 int (*pid_filter)(struct dvb_frontend *fe, int index, u16 pid,
46061 int onoff);
46062-};
46063+} __no_const;
46064
46065 #endif /* AF9033_H */
46066diff --git a/drivers/media/dvb-frontends/dib3000.h b/drivers/media/dvb-frontends/dib3000.h
46067index 9b6c3bb..baeb5c7 100644
46068--- a/drivers/media/dvb-frontends/dib3000.h
46069+++ b/drivers/media/dvb-frontends/dib3000.h
46070@@ -39,7 +39,7 @@ struct dib_fe_xfer_ops
46071 int (*fifo_ctrl)(struct dvb_frontend *fe, int onoff);
46072 int (*pid_ctrl)(struct dvb_frontend *fe, int index, int pid, int onoff);
46073 int (*tuner_pass_ctrl)(struct dvb_frontend *fe, int onoff, u8 pll_ctrl);
46074-};
46075+} __no_const;
46076
46077 #if IS_ENABLED(CONFIG_DVB_DIB3000MB)
46078 extern struct dvb_frontend* dib3000mb_attach(const struct dib3000_config* config,
46079diff --git a/drivers/media/dvb-frontends/dib7000p.h b/drivers/media/dvb-frontends/dib7000p.h
46080index 1fea0e9..321ce8f 100644
46081--- a/drivers/media/dvb-frontends/dib7000p.h
46082+++ b/drivers/media/dvb-frontends/dib7000p.h
46083@@ -64,7 +64,7 @@ struct dib7000p_ops {
46084 int (*get_adc_power)(struct dvb_frontend *fe);
46085 int (*slave_reset)(struct dvb_frontend *fe);
46086 struct dvb_frontend *(*init)(struct i2c_adapter *i2c_adap, u8 i2c_addr, struct dib7000p_config *cfg);
46087-};
46088+} __no_const;
46089
46090 #if IS_ENABLED(CONFIG_DVB_DIB7000P)
46091 void *dib7000p_attach(struct dib7000p_ops *ops);
46092diff --git a/drivers/media/dvb-frontends/dib8000.h b/drivers/media/dvb-frontends/dib8000.h
46093index 84cc103..5780c54 100644
46094--- a/drivers/media/dvb-frontends/dib8000.h
46095+++ b/drivers/media/dvb-frontends/dib8000.h
46096@@ -61,7 +61,7 @@ struct dib8000_ops {
46097 int (*pid_filter_ctrl)(struct dvb_frontend *fe, u8 onoff);
46098 int (*pid_filter)(struct dvb_frontend *fe, u8 id, u16 pid, u8 onoff);
46099 struct dvb_frontend *(*init)(struct i2c_adapter *i2c_adap, u8 i2c_addr, struct dib8000_config *cfg);
46100-};
46101+} __no_const;
46102
46103 #if IS_ENABLED(CONFIG_DVB_DIB8000)
46104 void *dib8000_attach(struct dib8000_ops *ops);
46105diff --git a/drivers/media/pci/cx88/cx88-video.c b/drivers/media/pci/cx88/cx88-video.c
46106index 860c98fc..497fa25 100644
46107--- a/drivers/media/pci/cx88/cx88-video.c
46108+++ b/drivers/media/pci/cx88/cx88-video.c
46109@@ -50,9 +50,9 @@ MODULE_VERSION(CX88_VERSION);
46110
46111 /* ------------------------------------------------------------------ */
46112
46113-static unsigned int video_nr[] = {[0 ... (CX88_MAXBOARDS - 1)] = UNSET };
46114-static unsigned int vbi_nr[] = {[0 ... (CX88_MAXBOARDS - 1)] = UNSET };
46115-static unsigned int radio_nr[] = {[0 ... (CX88_MAXBOARDS - 1)] = UNSET };
46116+static int video_nr[] = {[0 ... (CX88_MAXBOARDS - 1)] = UNSET };
46117+static int vbi_nr[] = {[0 ... (CX88_MAXBOARDS - 1)] = UNSET };
46118+static int radio_nr[] = {[0 ... (CX88_MAXBOARDS - 1)] = UNSET };
46119
46120 module_param_array(video_nr, int, NULL, 0444);
46121 module_param_array(vbi_nr, int, NULL, 0444);
46122diff --git a/drivers/media/pci/ivtv/ivtv-driver.c b/drivers/media/pci/ivtv/ivtv-driver.c
46123index 802642d..5534900 100644
46124--- a/drivers/media/pci/ivtv/ivtv-driver.c
46125+++ b/drivers/media/pci/ivtv/ivtv-driver.c
46126@@ -83,7 +83,7 @@ static struct pci_device_id ivtv_pci_tbl[] = {
46127 MODULE_DEVICE_TABLE(pci,ivtv_pci_tbl);
46128
46129 /* ivtv instance counter */
46130-static atomic_t ivtv_instance = ATOMIC_INIT(0);
46131+static atomic_unchecked_t ivtv_instance = ATOMIC_INIT(0);
46132
46133 /* Parameter declarations */
46134 static int cardtype[IVTV_MAX_CARDS];
46135diff --git a/drivers/media/pci/solo6x10/solo6x10-core.c b/drivers/media/pci/solo6x10/solo6x10-core.c
46136index 570d119..ed25830 100644
46137--- a/drivers/media/pci/solo6x10/solo6x10-core.c
46138+++ b/drivers/media/pci/solo6x10/solo6x10-core.c
46139@@ -424,7 +424,7 @@ static void solo_device_release(struct device *dev)
46140
46141 static int solo_sysfs_init(struct solo_dev *solo_dev)
46142 {
46143- struct bin_attribute *sdram_attr = &solo_dev->sdram_attr;
46144+ bin_attribute_no_const *sdram_attr = &solo_dev->sdram_attr;
46145 struct device *dev = &solo_dev->dev;
46146 const char *driver;
46147 int i;
46148diff --git a/drivers/media/pci/solo6x10/solo6x10-g723.c b/drivers/media/pci/solo6x10/solo6x10-g723.c
46149index 7ddc767..1c24361 100644
46150--- a/drivers/media/pci/solo6x10/solo6x10-g723.c
46151+++ b/drivers/media/pci/solo6x10/solo6x10-g723.c
46152@@ -351,7 +351,7 @@ static int solo_snd_pcm_init(struct solo_dev *solo_dev)
46153
46154 int solo_g723_init(struct solo_dev *solo_dev)
46155 {
46156- static struct snd_device_ops ops = { NULL };
46157+ static struct snd_device_ops ops = { };
46158 struct snd_card *card;
46159 struct snd_kcontrol_new kctl;
46160 char name[32];
46161diff --git a/drivers/media/pci/solo6x10/solo6x10-p2m.c b/drivers/media/pci/solo6x10/solo6x10-p2m.c
46162index 8c84846..27b4f83 100644
46163--- a/drivers/media/pci/solo6x10/solo6x10-p2m.c
46164+++ b/drivers/media/pci/solo6x10/solo6x10-p2m.c
46165@@ -73,7 +73,7 @@ int solo_p2m_dma_desc(struct solo_dev *solo_dev,
46166
46167 /* Get next ID. According to Softlogic, 6110 has problems on !=0 P2M */
46168 if (solo_dev->type != SOLO_DEV_6110 && multi_p2m) {
46169- p2m_id = atomic_inc_return(&solo_dev->p2m_count) % SOLO_NR_P2M;
46170+ p2m_id = atomic_inc_return_unchecked(&solo_dev->p2m_count) % SOLO_NR_P2M;
46171 if (p2m_id < 0)
46172 p2m_id = -p2m_id;
46173 }
46174diff --git a/drivers/media/pci/solo6x10/solo6x10.h b/drivers/media/pci/solo6x10/solo6x10.h
46175index 1ca54b0..7d7cb9a 100644
46176--- a/drivers/media/pci/solo6x10/solo6x10.h
46177+++ b/drivers/media/pci/solo6x10/solo6x10.h
46178@@ -218,7 +218,7 @@ struct solo_dev {
46179
46180 /* P2M DMA Engine */
46181 struct solo_p2m_dev p2m_dev[SOLO_NR_P2M];
46182- atomic_t p2m_count;
46183+ atomic_unchecked_t p2m_count;
46184 int p2m_jiffies;
46185 unsigned int p2m_timeouts;
46186
46187diff --git a/drivers/media/pci/tw68/tw68-core.c b/drivers/media/pci/tw68/tw68-core.c
46188index c135165..dc69499 100644
46189--- a/drivers/media/pci/tw68/tw68-core.c
46190+++ b/drivers/media/pci/tw68/tw68-core.c
46191@@ -60,7 +60,7 @@ static unsigned int card[] = {[0 ... (TW68_MAXBOARDS - 1)] = UNSET };
46192 module_param_array(card, int, NULL, 0444);
46193 MODULE_PARM_DESC(card, "card type");
46194
46195-static atomic_t tw68_instance = ATOMIC_INIT(0);
46196+static atomic_unchecked_t tw68_instance = ATOMIC_INIT(0);
46197
46198 /* ------------------------------------------------------------------ */
46199
46200diff --git a/drivers/media/platform/omap/omap_vout.c b/drivers/media/platform/omap/omap_vout.c
46201index ba2d8f9..1566684 100644
46202--- a/drivers/media/platform/omap/omap_vout.c
46203+++ b/drivers/media/platform/omap/omap_vout.c
46204@@ -63,7 +63,6 @@ enum omap_vout_channels {
46205 OMAP_VIDEO2,
46206 };
46207
46208-static struct videobuf_queue_ops video_vbq_ops;
46209 /* Variables configurable through module params*/
46210 static u32 video1_numbuffers = 3;
46211 static u32 video2_numbuffers = 3;
46212@@ -1012,6 +1011,12 @@ static int omap_vout_open(struct file *file)
46213 {
46214 struct videobuf_queue *q;
46215 struct omap_vout_device *vout = NULL;
46216+ static struct videobuf_queue_ops video_vbq_ops = {
46217+ .buf_setup = omap_vout_buffer_setup,
46218+ .buf_prepare = omap_vout_buffer_prepare,
46219+ .buf_release = omap_vout_buffer_release,
46220+ .buf_queue = omap_vout_buffer_queue,
46221+ };
46222
46223 vout = video_drvdata(file);
46224 v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "Entering %s\n", __func__);
46225@@ -1029,10 +1034,6 @@ static int omap_vout_open(struct file *file)
46226 vout->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
46227
46228 q = &vout->vbq;
46229- video_vbq_ops.buf_setup = omap_vout_buffer_setup;
46230- video_vbq_ops.buf_prepare = omap_vout_buffer_prepare;
46231- video_vbq_ops.buf_release = omap_vout_buffer_release;
46232- video_vbq_ops.buf_queue = omap_vout_buffer_queue;
46233 spin_lock_init(&vout->vbq_lock);
46234
46235 videobuf_queue_dma_contig_init(q, &video_vbq_ops, q->dev,
46236diff --git a/drivers/media/platform/s5p-tv/mixer.h b/drivers/media/platform/s5p-tv/mixer.h
46237index fb2acc5..a2fcbdc4 100644
46238--- a/drivers/media/platform/s5p-tv/mixer.h
46239+++ b/drivers/media/platform/s5p-tv/mixer.h
46240@@ -156,7 +156,7 @@ struct mxr_layer {
46241 /** layer index (unique identifier) */
46242 int idx;
46243 /** callbacks for layer methods */
46244- struct mxr_layer_ops ops;
46245+ struct mxr_layer_ops *ops;
46246 /** format array */
46247 const struct mxr_format **fmt_array;
46248 /** size of format array */
46249diff --git a/drivers/media/platform/s5p-tv/mixer_grp_layer.c b/drivers/media/platform/s5p-tv/mixer_grp_layer.c
46250index 74344c7..a39e70e 100644
46251--- a/drivers/media/platform/s5p-tv/mixer_grp_layer.c
46252+++ b/drivers/media/platform/s5p-tv/mixer_grp_layer.c
46253@@ -235,7 +235,7 @@ struct mxr_layer *mxr_graph_layer_create(struct mxr_device *mdev, int idx)
46254 {
46255 struct mxr_layer *layer;
46256 int ret;
46257- struct mxr_layer_ops ops = {
46258+ static struct mxr_layer_ops ops = {
46259 .release = mxr_graph_layer_release,
46260 .buffer_set = mxr_graph_buffer_set,
46261 .stream_set = mxr_graph_stream_set,
46262diff --git a/drivers/media/platform/s5p-tv/mixer_reg.c b/drivers/media/platform/s5p-tv/mixer_reg.c
46263index b713403..53cb5ad 100644
46264--- a/drivers/media/platform/s5p-tv/mixer_reg.c
46265+++ b/drivers/media/platform/s5p-tv/mixer_reg.c
46266@@ -276,7 +276,7 @@ static void mxr_irq_layer_handle(struct mxr_layer *layer)
46267 layer->update_buf = next;
46268 }
46269
46270- layer->ops.buffer_set(layer, layer->update_buf);
46271+ layer->ops->buffer_set(layer, layer->update_buf);
46272
46273 if (done && done != layer->shadow_buf)
46274 vb2_buffer_done(&done->vb, VB2_BUF_STATE_DONE);
46275diff --git a/drivers/media/platform/s5p-tv/mixer_video.c b/drivers/media/platform/s5p-tv/mixer_video.c
46276index 72d4f2e..4b2ea0d 100644
46277--- a/drivers/media/platform/s5p-tv/mixer_video.c
46278+++ b/drivers/media/platform/s5p-tv/mixer_video.c
46279@@ -210,7 +210,7 @@ static void mxr_layer_default_geo(struct mxr_layer *layer)
46280 layer->geo.src.height = layer->geo.src.full_height;
46281
46282 mxr_geometry_dump(mdev, &layer->geo);
46283- layer->ops.fix_geometry(layer, MXR_GEOMETRY_SINK, 0);
46284+ layer->ops->fix_geometry(layer, MXR_GEOMETRY_SINK, 0);
46285 mxr_geometry_dump(mdev, &layer->geo);
46286 }
46287
46288@@ -228,7 +228,7 @@ static void mxr_layer_update_output(struct mxr_layer *layer)
46289 layer->geo.dst.full_width = mbus_fmt.width;
46290 layer->geo.dst.full_height = mbus_fmt.height;
46291 layer->geo.dst.field = mbus_fmt.field;
46292- layer->ops.fix_geometry(layer, MXR_GEOMETRY_SINK, 0);
46293+ layer->ops->fix_geometry(layer, MXR_GEOMETRY_SINK, 0);
46294
46295 mxr_geometry_dump(mdev, &layer->geo);
46296 }
46297@@ -334,7 +334,7 @@ static int mxr_s_fmt(struct file *file, void *priv,
46298 /* set source size to highest accepted value */
46299 geo->src.full_width = max(geo->dst.full_width, pix->width);
46300 geo->src.full_height = max(geo->dst.full_height, pix->height);
46301- layer->ops.fix_geometry(layer, MXR_GEOMETRY_SOURCE, 0);
46302+ layer->ops->fix_geometry(layer, MXR_GEOMETRY_SOURCE, 0);
46303 mxr_geometry_dump(mdev, &layer->geo);
46304 /* set cropping to total visible screen */
46305 geo->src.width = pix->width;
46306@@ -342,12 +342,12 @@ static int mxr_s_fmt(struct file *file, void *priv,
46307 geo->src.x_offset = 0;
46308 geo->src.y_offset = 0;
46309 /* assure consistency of geometry */
46310- layer->ops.fix_geometry(layer, MXR_GEOMETRY_CROP, MXR_NO_OFFSET);
46311+ layer->ops->fix_geometry(layer, MXR_GEOMETRY_CROP, MXR_NO_OFFSET);
46312 mxr_geometry_dump(mdev, &layer->geo);
46313 /* set full size to lowest possible value */
46314 geo->src.full_width = 0;
46315 geo->src.full_height = 0;
46316- layer->ops.fix_geometry(layer, MXR_GEOMETRY_SOURCE, 0);
46317+ layer->ops->fix_geometry(layer, MXR_GEOMETRY_SOURCE, 0);
46318 mxr_geometry_dump(mdev, &layer->geo);
46319
46320 /* returning results */
46321@@ -474,7 +474,7 @@ static int mxr_s_selection(struct file *file, void *fh,
46322 target->width = s->r.width;
46323 target->height = s->r.height;
46324
46325- layer->ops.fix_geometry(layer, stage, s->flags);
46326+ layer->ops->fix_geometry(layer, stage, s->flags);
46327
46328 /* retrieve update selection rectangle */
46329 res.left = target->x_offset;
46330@@ -938,13 +938,13 @@ static int start_streaming(struct vb2_queue *vq, unsigned int count)
46331 mxr_output_get(mdev);
46332
46333 mxr_layer_update_output(layer);
46334- layer->ops.format_set(layer);
46335+ layer->ops->format_set(layer);
46336 /* enabling layer in hardware */
46337 spin_lock_irqsave(&layer->enq_slock, flags);
46338 layer->state = MXR_LAYER_STREAMING;
46339 spin_unlock_irqrestore(&layer->enq_slock, flags);
46340
46341- layer->ops.stream_set(layer, MXR_ENABLE);
46342+ layer->ops->stream_set(layer, MXR_ENABLE);
46343 mxr_streamer_get(mdev);
46344
46345 return 0;
46346@@ -1014,7 +1014,7 @@ static void stop_streaming(struct vb2_queue *vq)
46347 spin_unlock_irqrestore(&layer->enq_slock, flags);
46348
46349 /* disabling layer in hardware */
46350- layer->ops.stream_set(layer, MXR_DISABLE);
46351+ layer->ops->stream_set(layer, MXR_DISABLE);
46352 /* remove one streamer */
46353 mxr_streamer_put(mdev);
46354 /* allow changes in output configuration */
46355@@ -1052,8 +1052,8 @@ void mxr_base_layer_unregister(struct mxr_layer *layer)
46356
46357 void mxr_layer_release(struct mxr_layer *layer)
46358 {
46359- if (layer->ops.release)
46360- layer->ops.release(layer);
46361+ if (layer->ops->release)
46362+ layer->ops->release(layer);
46363 }
46364
46365 void mxr_base_layer_release(struct mxr_layer *layer)
46366@@ -1079,7 +1079,7 @@ struct mxr_layer *mxr_base_layer_create(struct mxr_device *mdev,
46367
46368 layer->mdev = mdev;
46369 layer->idx = idx;
46370- layer->ops = *ops;
46371+ layer->ops = ops;
46372
46373 spin_lock_init(&layer->enq_slock);
46374 INIT_LIST_HEAD(&layer->enq_list);
46375diff --git a/drivers/media/platform/s5p-tv/mixer_vp_layer.c b/drivers/media/platform/s5p-tv/mixer_vp_layer.c
46376index c9388c4..ce71ece 100644
46377--- a/drivers/media/platform/s5p-tv/mixer_vp_layer.c
46378+++ b/drivers/media/platform/s5p-tv/mixer_vp_layer.c
46379@@ -206,7 +206,7 @@ struct mxr_layer *mxr_vp_layer_create(struct mxr_device *mdev, int idx)
46380 {
46381 struct mxr_layer *layer;
46382 int ret;
46383- struct mxr_layer_ops ops = {
46384+ static struct mxr_layer_ops ops = {
46385 .release = mxr_vp_layer_release,
46386 .buffer_set = mxr_vp_buffer_set,
46387 .stream_set = mxr_vp_stream_set,
46388diff --git a/drivers/media/radio/radio-cadet.c b/drivers/media/radio/radio-cadet.c
46389index 82affae..42833ec 100644
46390--- a/drivers/media/radio/radio-cadet.c
46391+++ b/drivers/media/radio/radio-cadet.c
46392@@ -333,6 +333,8 @@ static ssize_t cadet_read(struct file *file, char __user *data, size_t count, lo
46393 unsigned char readbuf[RDS_BUFFER];
46394 int i = 0;
46395
46396+ if (count > RDS_BUFFER)
46397+ return -EFAULT;
46398 mutex_lock(&dev->lock);
46399 if (dev->rdsstat == 0)
46400 cadet_start_rds(dev);
46401@@ -349,8 +351,9 @@ static ssize_t cadet_read(struct file *file, char __user *data, size_t count, lo
46402 readbuf[i++] = dev->rdsbuf[dev->rdsout++];
46403 mutex_unlock(&dev->lock);
46404
46405- if (i && copy_to_user(data, readbuf, i))
46406- return -EFAULT;
46407+ if (i > sizeof(readbuf) || (i && copy_to_user(data, readbuf, i)))
46408+ i = -EFAULT;
46409+
46410 return i;
46411 }
46412
46413diff --git a/drivers/media/radio/radio-maxiradio.c b/drivers/media/radio/radio-maxiradio.c
46414index 5236035..c622c74 100644
46415--- a/drivers/media/radio/radio-maxiradio.c
46416+++ b/drivers/media/radio/radio-maxiradio.c
46417@@ -61,7 +61,7 @@ MODULE_PARM_DESC(radio_nr, "Radio device number");
46418 /* TEA5757 pin mappings */
46419 static const int clk = 1, data = 2, wren = 4, mo_st = 8, power = 16;
46420
46421-static atomic_t maxiradio_instance = ATOMIC_INIT(0);
46422+static atomic_unchecked_t maxiradio_instance = ATOMIC_INIT(0);
46423
46424 #define PCI_VENDOR_ID_GUILLEMOT 0x5046
46425 #define PCI_DEVICE_ID_GUILLEMOT_MAXIRADIO 0x1001
46426diff --git a/drivers/media/radio/radio-shark.c b/drivers/media/radio/radio-shark.c
46427index 050b3bb..79f62b9 100644
46428--- a/drivers/media/radio/radio-shark.c
46429+++ b/drivers/media/radio/radio-shark.c
46430@@ -79,7 +79,7 @@ struct shark_device {
46431 u32 last_val;
46432 };
46433
46434-static atomic_t shark_instance = ATOMIC_INIT(0);
46435+static atomic_unchecked_t shark_instance = ATOMIC_INIT(0);
46436
46437 static void shark_write_val(struct snd_tea575x *tea, u32 val)
46438 {
46439diff --git a/drivers/media/radio/radio-shark2.c b/drivers/media/radio/radio-shark2.c
46440index 8654e0d..0608a64 100644
46441--- a/drivers/media/radio/radio-shark2.c
46442+++ b/drivers/media/radio/radio-shark2.c
46443@@ -74,7 +74,7 @@ struct shark_device {
46444 u8 *transfer_buffer;
46445 };
46446
46447-static atomic_t shark_instance = ATOMIC_INIT(0);
46448+static atomic_unchecked_t shark_instance = ATOMIC_INIT(0);
46449
46450 static int shark_write_reg(struct radio_tea5777 *tea, u64 reg)
46451 {
46452diff --git a/drivers/media/radio/radio-si476x.c b/drivers/media/radio/radio-si476x.c
46453index dccf586..d5db411 100644
46454--- a/drivers/media/radio/radio-si476x.c
46455+++ b/drivers/media/radio/radio-si476x.c
46456@@ -1445,7 +1445,7 @@ static int si476x_radio_probe(struct platform_device *pdev)
46457 struct si476x_radio *radio;
46458 struct v4l2_ctrl *ctrl;
46459
46460- static atomic_t instance = ATOMIC_INIT(0);
46461+ static atomic_unchecked_t instance = ATOMIC_INIT(0);
46462
46463 radio = devm_kzalloc(&pdev->dev, sizeof(*radio), GFP_KERNEL);
46464 if (!radio)
46465diff --git a/drivers/media/radio/wl128x/fmdrv_common.c b/drivers/media/radio/wl128x/fmdrv_common.c
46466index 704397f..4d05977 100644
46467--- a/drivers/media/radio/wl128x/fmdrv_common.c
46468+++ b/drivers/media/radio/wl128x/fmdrv_common.c
46469@@ -71,7 +71,7 @@ module_param(default_rds_buf, uint, 0444);
46470 MODULE_PARM_DESC(rds_buf, "RDS buffer entries");
46471
46472 /* Radio Nr */
46473-static u32 radio_nr = -1;
46474+static int radio_nr = -1;
46475 module_param(radio_nr, int, 0444);
46476 MODULE_PARM_DESC(radio_nr, "Radio Nr");
46477
46478diff --git a/drivers/media/usb/dvb-usb/cinergyT2-core.c b/drivers/media/usb/dvb-usb/cinergyT2-core.c
46479index 9fd1527..8927230 100644
46480--- a/drivers/media/usb/dvb-usb/cinergyT2-core.c
46481+++ b/drivers/media/usb/dvb-usb/cinergyT2-core.c
46482@@ -50,29 +50,73 @@ static struct dvb_usb_device_properties cinergyt2_properties;
46483
46484 static int cinergyt2_streaming_ctrl(struct dvb_usb_adapter *adap, int enable)
46485 {
46486- char buf[] = { CINERGYT2_EP1_CONTROL_STREAM_TRANSFER, enable ? 1 : 0 };
46487- char result[64];
46488- return dvb_usb_generic_rw(adap->dev, buf, sizeof(buf), result,
46489- sizeof(result), 0);
46490+ char *buf;
46491+ char *result;
46492+ int retval;
46493+
46494+ buf = kmalloc(2, GFP_KERNEL);
46495+ if (buf == NULL)
46496+ return -ENOMEM;
46497+ result = kmalloc(64, GFP_KERNEL);
46498+ if (result == NULL) {
46499+ kfree(buf);
46500+ return -ENOMEM;
46501+ }
46502+
46503+ buf[0] = CINERGYT2_EP1_CONTROL_STREAM_TRANSFER;
46504+ buf[1] = enable ? 1 : 0;
46505+
46506+ retval = dvb_usb_generic_rw(adap->dev, buf, 2, result, 64, 0);
46507+
46508+ kfree(buf);
46509+ kfree(result);
46510+ return retval;
46511 }
46512
46513 static int cinergyt2_power_ctrl(struct dvb_usb_device *d, int enable)
46514 {
46515- char buf[] = { CINERGYT2_EP1_SLEEP_MODE, enable ? 0 : 1 };
46516- char state[3];
46517- return dvb_usb_generic_rw(d, buf, sizeof(buf), state, sizeof(state), 0);
46518+ char *buf;
46519+ char *state;
46520+ int retval;
46521+
46522+ buf = kmalloc(2, GFP_KERNEL);
46523+ if (buf == NULL)
46524+ return -ENOMEM;
46525+ state = kmalloc(3, GFP_KERNEL);
46526+ if (state == NULL) {
46527+ kfree(buf);
46528+ return -ENOMEM;
46529+ }
46530+
46531+ buf[0] = CINERGYT2_EP1_SLEEP_MODE;
46532+ buf[1] = enable ? 1 : 0;
46533+
46534+ retval = dvb_usb_generic_rw(d, buf, 2, state, 3, 0);
46535+
46536+ kfree(buf);
46537+ kfree(state);
46538+ return retval;
46539 }
46540
46541 static int cinergyt2_frontend_attach(struct dvb_usb_adapter *adap)
46542 {
46543- char query[] = { CINERGYT2_EP1_GET_FIRMWARE_VERSION };
46544- char state[3];
46545+ char *query;
46546+ char *state;
46547 int ret;
46548+ query = kmalloc(1, GFP_KERNEL);
46549+ if (query == NULL)
46550+ return -ENOMEM;
46551+ state = kmalloc(3, GFP_KERNEL);
46552+ if (state == NULL) {
46553+ kfree(query);
46554+ return -ENOMEM;
46555+ }
46556+
46557+ query[0] = CINERGYT2_EP1_GET_FIRMWARE_VERSION;
46558
46559 adap->fe_adap[0].fe = cinergyt2_fe_attach(adap->dev);
46560
46561- ret = dvb_usb_generic_rw(adap->dev, query, sizeof(query), state,
46562- sizeof(state), 0);
46563+ ret = dvb_usb_generic_rw(adap->dev, query, 1, state, 3, 0);
46564 if (ret < 0) {
46565 deb_rc("cinergyt2_power_ctrl() Failed to retrieve sleep "
46566 "state info\n");
46567@@ -80,7 +124,8 @@ static int cinergyt2_frontend_attach(struct dvb_usb_adapter *adap)
46568
46569 /* Copy this pointer as we are gonna need it in the release phase */
46570 cinergyt2_usb_device = adap->dev;
46571-
46572+ kfree(query);
46573+ kfree(state);
46574 return 0;
46575 }
46576
46577@@ -141,12 +186,23 @@ static int repeatable_keys[] = {
46578 static int cinergyt2_rc_query(struct dvb_usb_device *d, u32 *event, int *state)
46579 {
46580 struct cinergyt2_state *st = d->priv;
46581- u8 key[5] = {0, 0, 0, 0, 0}, cmd = CINERGYT2_EP1_GET_RC_EVENTS;
46582+ u8 *key, *cmd;
46583 int i;
46584
46585+ cmd = kmalloc(1, GFP_KERNEL);
46586+ if (cmd == NULL)
46587+ return -EINVAL;
46588+ key = kzalloc(5, GFP_KERNEL);
46589+ if (key == NULL) {
46590+ kfree(cmd);
46591+ return -EINVAL;
46592+ }
46593+
46594+ cmd[0] = CINERGYT2_EP1_GET_RC_EVENTS;
46595+
46596 *state = REMOTE_NO_KEY_PRESSED;
46597
46598- dvb_usb_generic_rw(d, &cmd, 1, key, sizeof(key), 0);
46599+ dvb_usb_generic_rw(d, cmd, 1, key, 5, 0);
46600 if (key[4] == 0xff) {
46601 /* key repeat */
46602 st->rc_counter++;
46603@@ -157,12 +213,12 @@ static int cinergyt2_rc_query(struct dvb_usb_device *d, u32 *event, int *state)
46604 *event = d->last_event;
46605 deb_rc("repeat key, event %x\n",
46606 *event);
46607- return 0;
46608+ goto out;
46609 }
46610 }
46611 deb_rc("repeated key (non repeatable)\n");
46612 }
46613- return 0;
46614+ goto out;
46615 }
46616
46617 /* hack to pass checksum on the custom field */
46618@@ -174,6 +230,9 @@ static int cinergyt2_rc_query(struct dvb_usb_device *d, u32 *event, int *state)
46619
46620 deb_rc("key: %*ph\n", 5, key);
46621 }
46622+out:
46623+ kfree(cmd);
46624+ kfree(key);
46625 return 0;
46626 }
46627
46628diff --git a/drivers/media/usb/dvb-usb/cinergyT2-fe.c b/drivers/media/usb/dvb-usb/cinergyT2-fe.c
46629index c890fe4..f9b2ae6 100644
46630--- a/drivers/media/usb/dvb-usb/cinergyT2-fe.c
46631+++ b/drivers/media/usb/dvb-usb/cinergyT2-fe.c
46632@@ -145,103 +145,176 @@ static int cinergyt2_fe_read_status(struct dvb_frontend *fe,
46633 fe_status_t *status)
46634 {
46635 struct cinergyt2_fe_state *state = fe->demodulator_priv;
46636- struct dvbt_get_status_msg result;
46637- u8 cmd[] = { CINERGYT2_EP1_GET_TUNER_STATUS };
46638+ struct dvbt_get_status_msg *result;
46639+ u8 *cmd;
46640 int ret;
46641
46642- ret = dvb_usb_generic_rw(state->d, cmd, sizeof(cmd), (u8 *)&result,
46643- sizeof(result), 0);
46644+ cmd = kmalloc(1, GFP_KERNEL);
46645+ if (cmd == NULL)
46646+ return -ENOMEM;
46647+ result = kmalloc(sizeof(*result), GFP_KERNEL);
46648+ if (result == NULL) {
46649+ kfree(cmd);
46650+ return -ENOMEM;
46651+ }
46652+
46653+ cmd[0] = CINERGYT2_EP1_GET_TUNER_STATUS;
46654+
46655+ ret = dvb_usb_generic_rw(state->d, cmd, 1, (u8 *)result,
46656+ sizeof(*result), 0);
46657 if (ret < 0)
46658- return ret;
46659+ goto out;
46660
46661 *status = 0;
46662
46663- if (0xffff - le16_to_cpu(result.gain) > 30)
46664+ if (0xffff - le16_to_cpu(result->gain) > 30)
46665 *status |= FE_HAS_SIGNAL;
46666- if (result.lock_bits & (1 << 6))
46667+ if (result->lock_bits & (1 << 6))
46668 *status |= FE_HAS_LOCK;
46669- if (result.lock_bits & (1 << 5))
46670+ if (result->lock_bits & (1 << 5))
46671 *status |= FE_HAS_SYNC;
46672- if (result.lock_bits & (1 << 4))
46673+ if (result->lock_bits & (1 << 4))
46674 *status |= FE_HAS_CARRIER;
46675- if (result.lock_bits & (1 << 1))
46676+ if (result->lock_bits & (1 << 1))
46677 *status |= FE_HAS_VITERBI;
46678
46679 if ((*status & (FE_HAS_CARRIER | FE_HAS_VITERBI | FE_HAS_SYNC)) !=
46680 (FE_HAS_CARRIER | FE_HAS_VITERBI | FE_HAS_SYNC))
46681 *status &= ~FE_HAS_LOCK;
46682
46683- return 0;
46684+out:
46685+ kfree(cmd);
46686+ kfree(result);
46687+ return ret;
46688 }
46689
46690 static int cinergyt2_fe_read_ber(struct dvb_frontend *fe, u32 *ber)
46691 {
46692 struct cinergyt2_fe_state *state = fe->demodulator_priv;
46693- struct dvbt_get_status_msg status;
46694- char cmd[] = { CINERGYT2_EP1_GET_TUNER_STATUS };
46695+ struct dvbt_get_status_msg *status;
46696+ char *cmd;
46697 int ret;
46698
46699- ret = dvb_usb_generic_rw(state->d, cmd, sizeof(cmd), (char *)&status,
46700- sizeof(status), 0);
46701+ cmd = kmalloc(1, GFP_KERNEL);
46702+ if (cmd == NULL)
46703+ return -ENOMEM;
46704+ status = kmalloc(sizeof(*status), GFP_KERNEL);
46705+ if (status == NULL) {
46706+ kfree(cmd);
46707+ return -ENOMEM;
46708+ }
46709+
46710+ cmd[0] = CINERGYT2_EP1_GET_TUNER_STATUS;
46711+
46712+ ret = dvb_usb_generic_rw(state->d, cmd, 1, (char *)status,
46713+ sizeof(*status), 0);
46714 if (ret < 0)
46715- return ret;
46716+ goto out;
46717
46718- *ber = le32_to_cpu(status.viterbi_error_rate);
46719+ *ber = le32_to_cpu(status->viterbi_error_rate);
46720+out:
46721+ kfree(cmd);
46722+ kfree(status);
46723 return 0;
46724 }
46725
46726 static int cinergyt2_fe_read_unc_blocks(struct dvb_frontend *fe, u32 *unc)
46727 {
46728 struct cinergyt2_fe_state *state = fe->demodulator_priv;
46729- struct dvbt_get_status_msg status;
46730- u8 cmd[] = { CINERGYT2_EP1_GET_TUNER_STATUS };
46731+ struct dvbt_get_status_msg *status;
46732+ u8 *cmd;
46733 int ret;
46734
46735- ret = dvb_usb_generic_rw(state->d, cmd, sizeof(cmd), (u8 *)&status,
46736- sizeof(status), 0);
46737+ cmd = kmalloc(1, GFP_KERNEL);
46738+ if (cmd == NULL)
46739+ return -ENOMEM;
46740+ status = kmalloc(sizeof(*status), GFP_KERNEL);
46741+ if (status == NULL) {
46742+ kfree(cmd);
46743+ return -ENOMEM;
46744+ }
46745+
46746+ cmd[0] = CINERGYT2_EP1_GET_TUNER_STATUS;
46747+
46748+ ret = dvb_usb_generic_rw(state->d, cmd, 1, (u8 *)status,
46749+ sizeof(*status), 0);
46750 if (ret < 0) {
46751 err("cinergyt2_fe_read_unc_blocks() Failed! (Error=%d)\n",
46752 ret);
46753- return ret;
46754+ goto out;
46755 }
46756- *unc = le32_to_cpu(status.uncorrected_block_count);
46757- return 0;
46758+ *unc = le32_to_cpu(status->uncorrected_block_count);
46759+
46760+out:
46761+ kfree(cmd);
46762+ kfree(status);
46763+ return ret;
46764 }
46765
46766 static int cinergyt2_fe_read_signal_strength(struct dvb_frontend *fe,
46767 u16 *strength)
46768 {
46769 struct cinergyt2_fe_state *state = fe->demodulator_priv;
46770- struct dvbt_get_status_msg status;
46771- char cmd[] = { CINERGYT2_EP1_GET_TUNER_STATUS };
46772+ struct dvbt_get_status_msg *status;
46773+ char *cmd;
46774 int ret;
46775
46776- ret = dvb_usb_generic_rw(state->d, cmd, sizeof(cmd), (char *)&status,
46777- sizeof(status), 0);
46778+ cmd = kmalloc(1, GFP_KERNEL);
46779+ if (cmd == NULL)
46780+ return -ENOMEM;
46781+ status = kmalloc(sizeof(*status), GFP_KERNEL);
46782+ if (status == NULL) {
46783+ kfree(cmd);
46784+ return -ENOMEM;
46785+ }
46786+
46787+ cmd[0] = CINERGYT2_EP1_GET_TUNER_STATUS;
46788+
46789+ ret = dvb_usb_generic_rw(state->d, cmd, 1, (char *)status,
46790+ sizeof(*status), 0);
46791 if (ret < 0) {
46792 err("cinergyt2_fe_read_signal_strength() Failed!"
46793 " (Error=%d)\n", ret);
46794- return ret;
46795+ goto out;
46796 }
46797- *strength = (0xffff - le16_to_cpu(status.gain));
46798+ *strength = (0xffff - le16_to_cpu(status->gain));
46799+
46800+out:
46801+ kfree(cmd);
46802+ kfree(status);
46803 return 0;
46804 }
46805
46806 static int cinergyt2_fe_read_snr(struct dvb_frontend *fe, u16 *snr)
46807 {
46808 struct cinergyt2_fe_state *state = fe->demodulator_priv;
46809- struct dvbt_get_status_msg status;
46810- char cmd[] = { CINERGYT2_EP1_GET_TUNER_STATUS };
46811+ struct dvbt_get_status_msg *status;
46812+ char *cmd;
46813 int ret;
46814
46815- ret = dvb_usb_generic_rw(state->d, cmd, sizeof(cmd), (char *)&status,
46816- sizeof(status), 0);
46817+ cmd = kmalloc(1, GFP_KERNEL);
46818+ if (cmd == NULL)
46819+ return -ENOMEM;
46820+ status = kmalloc(sizeof(*status), GFP_KERNEL);
46821+ if (status == NULL) {
46822+ kfree(cmd);
46823+ return -ENOMEM;
46824+ }
46825+
46826+ cmd[0] = CINERGYT2_EP1_GET_TUNER_STATUS;
46827+
46828+ ret = dvb_usb_generic_rw(state->d, cmd, 1, (char *)status,
46829+ sizeof(*status), 0);
46830 if (ret < 0) {
46831 err("cinergyt2_fe_read_snr() Failed! (Error=%d)\n", ret);
46832- return ret;
46833+ goto out;
46834 }
46835- *snr = (status.snr << 8) | status.snr;
46836- return 0;
46837+ *snr = (status->snr << 8) | status->snr;
46838+
46839+out:
46840+ kfree(cmd);
46841+ kfree(status);
46842+ return ret;
46843 }
46844
46845 static int cinergyt2_fe_init(struct dvb_frontend *fe)
46846@@ -266,35 +339,46 @@ static int cinergyt2_fe_set_frontend(struct dvb_frontend *fe)
46847 {
46848 struct dtv_frontend_properties *fep = &fe->dtv_property_cache;
46849 struct cinergyt2_fe_state *state = fe->demodulator_priv;
46850- struct dvbt_set_parameters_msg param;
46851- char result[2];
46852+ struct dvbt_set_parameters_msg *param;
46853+ char *result;
46854 int err;
46855
46856- param.cmd = CINERGYT2_EP1_SET_TUNER_PARAMETERS;
46857- param.tps = cpu_to_le16(compute_tps(fep));
46858- param.freq = cpu_to_le32(fep->frequency / 1000);
46859- param.flags = 0;
46860+ result = kmalloc(2, GFP_KERNEL);
46861+ if (result == NULL)
46862+ return -ENOMEM;
46863+ param = kmalloc(sizeof(*param), GFP_KERNEL);
46864+ if (param == NULL) {
46865+ kfree(result);
46866+ return -ENOMEM;
46867+ }
46868+
46869+ param->cmd = CINERGYT2_EP1_SET_TUNER_PARAMETERS;
46870+ param->tps = cpu_to_le16(compute_tps(fep));
46871+ param->freq = cpu_to_le32(fep->frequency / 1000);
46872+ param->flags = 0;
46873
46874 switch (fep->bandwidth_hz) {
46875 default:
46876 case 8000000:
46877- param.bandwidth = 8;
46878+ param->bandwidth = 8;
46879 break;
46880 case 7000000:
46881- param.bandwidth = 7;
46882+ param->bandwidth = 7;
46883 break;
46884 case 6000000:
46885- param.bandwidth = 6;
46886+ param->bandwidth = 6;
46887 break;
46888 }
46889
46890 err = dvb_usb_generic_rw(state->d,
46891- (char *)&param, sizeof(param),
46892- result, sizeof(result), 0);
46893+ (char *)param, sizeof(*param),
46894+ result, 2, 0);
46895 if (err < 0)
46896 err("cinergyt2_fe_set_frontend() Failed! err=%d\n", err);
46897
46898- return (err < 0) ? err : 0;
46899+ kfree(result);
46900+ kfree(param);
46901+ return err;
46902 }
46903
46904 static void cinergyt2_fe_release(struct dvb_frontend *fe)
46905diff --git a/drivers/media/usb/dvb-usb/dvb-usb-firmware.c b/drivers/media/usb/dvb-usb/dvb-usb-firmware.c
46906index 733a7ff..f8b52e3 100644
46907--- a/drivers/media/usb/dvb-usb/dvb-usb-firmware.c
46908+++ b/drivers/media/usb/dvb-usb/dvb-usb-firmware.c
46909@@ -35,42 +35,57 @@ static int usb_cypress_writemem(struct usb_device *udev,u16 addr,u8 *data, u8 le
46910
46911 int usb_cypress_load_firmware(struct usb_device *udev, const struct firmware *fw, int type)
46912 {
46913- struct hexline hx;
46914- u8 reset;
46915+ struct hexline *hx;
46916+ u8 *reset;
46917 int ret,pos=0;
46918
46919+ reset = kmalloc(1, GFP_KERNEL);
46920+ if (reset == NULL)
46921+ return -ENOMEM;
46922+
46923+ hx = kmalloc(sizeof(struct hexline), GFP_KERNEL);
46924+ if (hx == NULL) {
46925+ kfree(reset);
46926+ return -ENOMEM;
46927+ }
46928+
46929 /* stop the CPU */
46930- reset = 1;
46931- if ((ret = usb_cypress_writemem(udev,cypress[type].cpu_cs_register,&reset,1)) != 1)
46932+ reset[0] = 1;
46933+ if ((ret = usb_cypress_writemem(udev,cypress[type].cpu_cs_register,reset,1)) != 1)
46934 err("could not stop the USB controller CPU.");
46935
46936- while ((ret = dvb_usb_get_hexline(fw,&hx,&pos)) > 0) {
46937- deb_fw("writing to address 0x%04x (buffer: 0x%02x %02x)\n",hx.addr,hx.len,hx.chk);
46938- ret = usb_cypress_writemem(udev,hx.addr,hx.data,hx.len);
46939+ while ((ret = dvb_usb_get_hexline(fw,hx,&pos)) > 0) {
46940+ deb_fw("writing to address 0x%04x (buffer: 0x%02x %02x)\n",hx->addr,hx->len,hx->chk);
46941+ ret = usb_cypress_writemem(udev,hx->addr,hx->data,hx->len);
46942
46943- if (ret != hx.len) {
46944+ if (ret != hx->len) {
46945 err("error while transferring firmware "
46946 "(transferred size: %d, block size: %d)",
46947- ret,hx.len);
46948+ ret,hx->len);
46949 ret = -EINVAL;
46950 break;
46951 }
46952 }
46953 if (ret < 0) {
46954 err("firmware download failed at %d with %d",pos,ret);
46955+ kfree(reset);
46956+ kfree(hx);
46957 return ret;
46958 }
46959
46960 if (ret == 0) {
46961 /* restart the CPU */
46962- reset = 0;
46963- if (ret || usb_cypress_writemem(udev,cypress[type].cpu_cs_register,&reset,1) != 1) {
46964+ reset[0] = 0;
46965+ if (ret || usb_cypress_writemem(udev,cypress[type].cpu_cs_register,reset,1) != 1) {
46966 err("could not restart the USB controller CPU.");
46967 ret = -EINVAL;
46968 }
46969 } else
46970 ret = -EIO;
46971
46972+ kfree(reset);
46973+ kfree(hx);
46974+
46975 return ret;
46976 }
46977 EXPORT_SYMBOL(usb_cypress_load_firmware);
46978diff --git a/drivers/media/usb/dvb-usb/dw2102.c b/drivers/media/usb/dvb-usb/dw2102.c
46979index 1a3df10..57997a5 100644
46980--- a/drivers/media/usb/dvb-usb/dw2102.c
46981+++ b/drivers/media/usb/dvb-usb/dw2102.c
46982@@ -118,7 +118,7 @@ struct su3000_state {
46983
46984 struct s6x0_state {
46985 int (*old_set_voltage)(struct dvb_frontend *f, fe_sec_voltage_t v);
46986-};
46987+} __no_const;
46988
46989 /* debug */
46990 static int dvb_usb_dw2102_debug;
46991diff --git a/drivers/media/usb/dvb-usb/technisat-usb2.c b/drivers/media/usb/dvb-usb/technisat-usb2.c
46992index 5801ae7..83f71fa 100644
46993--- a/drivers/media/usb/dvb-usb/technisat-usb2.c
46994+++ b/drivers/media/usb/dvb-usb/technisat-usb2.c
46995@@ -87,8 +87,11 @@ struct technisat_usb2_state {
46996 static int technisat_usb2_i2c_access(struct usb_device *udev,
46997 u8 device_addr, u8 *tx, u8 txlen, u8 *rx, u8 rxlen)
46998 {
46999- u8 b[64];
47000- int ret, actual_length;
47001+ u8 *b = kmalloc(64, GFP_KERNEL);
47002+ int ret, actual_length, error = 0;
47003+
47004+ if (b == NULL)
47005+ return -ENOMEM;
47006
47007 deb_i2c("i2c-access: %02x, tx: ", device_addr);
47008 debug_dump(tx, txlen, deb_i2c);
47009@@ -121,7 +124,8 @@ static int technisat_usb2_i2c_access(struct usb_device *udev,
47010
47011 if (ret < 0) {
47012 err("i2c-error: out failed %02x = %d", device_addr, ret);
47013- return -ENODEV;
47014+ error = -ENODEV;
47015+ goto out;
47016 }
47017
47018 ret = usb_bulk_msg(udev,
47019@@ -129,7 +133,8 @@ static int technisat_usb2_i2c_access(struct usb_device *udev,
47020 b, 64, &actual_length, 1000);
47021 if (ret < 0) {
47022 err("i2c-error: in failed %02x = %d", device_addr, ret);
47023- return -ENODEV;
47024+ error = -ENODEV;
47025+ goto out;
47026 }
47027
47028 if (b[0] != I2C_STATUS_OK) {
47029@@ -137,8 +142,10 @@ static int technisat_usb2_i2c_access(struct usb_device *udev,
47030 /* handle tuner-i2c-nak */
47031 if (!(b[0] == I2C_STATUS_NAK &&
47032 device_addr == 0x60
47033- /* && device_is_technisat_usb2 */))
47034- return -ENODEV;
47035+ /* && device_is_technisat_usb2 */)) {
47036+ error = -ENODEV;
47037+ goto out;
47038+ }
47039 }
47040
47041 deb_i2c("status: %d, ", b[0]);
47042@@ -152,7 +159,9 @@ static int technisat_usb2_i2c_access(struct usb_device *udev,
47043
47044 deb_i2c("\n");
47045
47046- return 0;
47047+out:
47048+ kfree(b);
47049+ return error;
47050 }
47051
47052 static int technisat_usb2_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg *msg,
47053@@ -224,14 +233,16 @@ static int technisat_usb2_set_led(struct dvb_usb_device *d, int red, enum techni
47054 {
47055 int ret;
47056
47057- u8 led[8] = {
47058- red ? SET_RED_LED_VENDOR_REQUEST : SET_GREEN_LED_VENDOR_REQUEST,
47059- 0
47060- };
47061+ u8 *led = kzalloc(8, GFP_KERNEL);
47062+
47063+ if (led == NULL)
47064+ return -ENOMEM;
47065
47066 if (disable_led_control && state != TECH_LED_OFF)
47067 return 0;
47068
47069+ led[0] = red ? SET_RED_LED_VENDOR_REQUEST : SET_GREEN_LED_VENDOR_REQUEST;
47070+
47071 switch (state) {
47072 case TECH_LED_ON:
47073 led[1] = 0x82;
47074@@ -263,16 +274,22 @@ static int technisat_usb2_set_led(struct dvb_usb_device *d, int red, enum techni
47075 red ? SET_RED_LED_VENDOR_REQUEST : SET_GREEN_LED_VENDOR_REQUEST,
47076 USB_TYPE_VENDOR | USB_DIR_OUT,
47077 0, 0,
47078- led, sizeof(led), 500);
47079+ led, 8, 500);
47080
47081 mutex_unlock(&d->i2c_mutex);
47082+
47083+ kfree(led);
47084+
47085 return ret;
47086 }
47087
47088 static int technisat_usb2_set_led_timer(struct dvb_usb_device *d, u8 red, u8 green)
47089 {
47090 int ret;
47091- u8 b = 0;
47092+ u8 *b = kzalloc(1, GFP_KERNEL);
47093+
47094+ if (b == NULL)
47095+ return -ENOMEM;
47096
47097 if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
47098 return -EAGAIN;
47099@@ -281,10 +298,12 @@ static int technisat_usb2_set_led_timer(struct dvb_usb_device *d, u8 red, u8 gre
47100 SET_LED_TIMER_DIVIDER_VENDOR_REQUEST,
47101 USB_TYPE_VENDOR | USB_DIR_OUT,
47102 (red << 8) | green, 0,
47103- &b, 1, 500);
47104+ b, 1, 500);
47105
47106 mutex_unlock(&d->i2c_mutex);
47107
47108+ kfree(b);
47109+
47110 return ret;
47111 }
47112
47113@@ -328,7 +347,7 @@ static int technisat_usb2_identify_state(struct usb_device *udev,
47114 struct dvb_usb_device_description **desc, int *cold)
47115 {
47116 int ret;
47117- u8 version[3];
47118+ u8 *version = kmalloc(3, GFP_KERNEL);
47119
47120 /* first select the interface */
47121 if (usb_set_interface(udev, 0, 1) != 0)
47122@@ -338,11 +357,14 @@ static int technisat_usb2_identify_state(struct usb_device *udev,
47123
47124 *cold = 0; /* by default do not download a firmware - just in case something is wrong */
47125
47126+ if (version == NULL)
47127+ return 0;
47128+
47129 ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
47130 GET_VERSION_INFO_VENDOR_REQUEST,
47131 USB_TYPE_VENDOR | USB_DIR_IN,
47132 0, 0,
47133- version, sizeof(version), 500);
47134+ version, 3, 500);
47135
47136 if (ret < 0)
47137 *cold = 1;
47138@@ -351,6 +373,8 @@ static int technisat_usb2_identify_state(struct usb_device *udev,
47139 *cold = 0;
47140 }
47141
47142+ kfree(version);
47143+
47144 return 0;
47145 }
47146
47147@@ -594,10 +618,15 @@ static int technisat_usb2_frontend_attach(struct dvb_usb_adapter *a)
47148
47149 static int technisat_usb2_get_ir(struct dvb_usb_device *d)
47150 {
47151- u8 buf[62], *b;
47152+ u8 *buf, *b;
47153 int ret;
47154 struct ir_raw_event ev;
47155
47156+ buf = kmalloc(62, GFP_KERNEL);
47157+
47158+ if (buf == NULL)
47159+ return -ENOMEM;
47160+
47161 buf[0] = GET_IR_DATA_VENDOR_REQUEST;
47162 buf[1] = 0x08;
47163 buf[2] = 0x8f;
47164@@ -620,16 +649,20 @@ static int technisat_usb2_get_ir(struct dvb_usb_device *d)
47165 GET_IR_DATA_VENDOR_REQUEST,
47166 USB_TYPE_VENDOR | USB_DIR_IN,
47167 0x8080, 0,
47168- buf, sizeof(buf), 500);
47169+ buf, 62, 500);
47170
47171 unlock:
47172 mutex_unlock(&d->i2c_mutex);
47173
47174- if (ret < 0)
47175+ if (ret < 0) {
47176+ kfree(buf);
47177 return ret;
47178+ }
47179
47180- if (ret == 1)
47181+ if (ret == 1) {
47182+ kfree(buf);
47183 return 0; /* no key pressed */
47184+ }
47185
47186 /* decoding */
47187 b = buf+1;
47188@@ -656,6 +689,8 @@ unlock:
47189
47190 ir_raw_event_handle(d->rc_dev);
47191
47192+ kfree(buf);
47193+
47194 return 1;
47195 }
47196
47197diff --git a/drivers/media/v4l2-core/v4l2-compat-ioctl32.c b/drivers/media/v4l2-core/v4l2-compat-ioctl32.c
47198index af63543..0436f20 100644
47199--- a/drivers/media/v4l2-core/v4l2-compat-ioctl32.c
47200+++ b/drivers/media/v4l2-core/v4l2-compat-ioctl32.c
47201@@ -429,7 +429,7 @@ static int get_v4l2_buffer32(struct v4l2_buffer *kp, struct v4l2_buffer32 __user
47202 * by passing a very big num_planes value */
47203 uplane = compat_alloc_user_space(num_planes *
47204 sizeof(struct v4l2_plane));
47205- kp->m.planes = (__force struct v4l2_plane *)uplane;
47206+ kp->m.planes = (__force_kernel struct v4l2_plane *)uplane;
47207
47208 while (--num_planes >= 0) {
47209 ret = get_v4l2_plane32(uplane, uplane32, kp->memory);
47210@@ -500,7 +500,7 @@ static int put_v4l2_buffer32(struct v4l2_buffer *kp, struct v4l2_buffer32 __user
47211 if (num_planes == 0)
47212 return 0;
47213
47214- uplane = (__force struct v4l2_plane __user *)kp->m.planes;
47215+ uplane = (struct v4l2_plane __force_user *)kp->m.planes;
47216 if (get_user(p, &up->m.planes))
47217 return -EFAULT;
47218 uplane32 = compat_ptr(p);
47219@@ -564,7 +564,7 @@ static int get_v4l2_framebuffer32(struct v4l2_framebuffer *kp, struct v4l2_frame
47220 get_user(kp->flags, &up->flags) ||
47221 copy_from_user(&kp->fmt, &up->fmt, sizeof(up->fmt)))
47222 return -EFAULT;
47223- kp->base = (__force void *)compat_ptr(tmp);
47224+ kp->base = (__force_kernel void *)compat_ptr(tmp);
47225 return 0;
47226 }
47227
47228@@ -669,7 +669,7 @@ static int get_v4l2_ext_controls32(struct v4l2_ext_controls *kp, struct v4l2_ext
47229 n * sizeof(struct v4l2_ext_control32)))
47230 return -EFAULT;
47231 kcontrols = compat_alloc_user_space(n * sizeof(struct v4l2_ext_control));
47232- kp->controls = (__force struct v4l2_ext_control *)kcontrols;
47233+ kp->controls = (__force_kernel struct v4l2_ext_control *)kcontrols;
47234 while (--n >= 0) {
47235 u32 id;
47236
47237@@ -696,7 +696,7 @@ static int put_v4l2_ext_controls32(struct v4l2_ext_controls *kp, struct v4l2_ext
47238 {
47239 struct v4l2_ext_control32 __user *ucontrols;
47240 struct v4l2_ext_control __user *kcontrols =
47241- (__force struct v4l2_ext_control __user *)kp->controls;
47242+ (struct v4l2_ext_control __force_user *)kp->controls;
47243 int n = kp->count;
47244 compat_caddr_t p;
47245
47246@@ -780,7 +780,7 @@ static int get_v4l2_edid32(struct v4l2_edid *kp, struct v4l2_edid32 __user *up)
47247 get_user(tmp, &up->edid) ||
47248 copy_from_user(kp->reserved, up->reserved, sizeof(kp->reserved)))
47249 return -EFAULT;
47250- kp->edid = (__force u8 *)compat_ptr(tmp);
47251+ kp->edid = (__force_kernel u8 *)compat_ptr(tmp);
47252 return 0;
47253 }
47254
47255diff --git a/drivers/media/v4l2-core/v4l2-device.c b/drivers/media/v4l2-core/v4l2-device.c
47256index 015f92a..59e311e 100644
47257--- a/drivers/media/v4l2-core/v4l2-device.c
47258+++ b/drivers/media/v4l2-core/v4l2-device.c
47259@@ -75,9 +75,9 @@ int v4l2_device_put(struct v4l2_device *v4l2_dev)
47260 EXPORT_SYMBOL_GPL(v4l2_device_put);
47261
47262 int v4l2_device_set_name(struct v4l2_device *v4l2_dev, const char *basename,
47263- atomic_t *instance)
47264+ atomic_unchecked_t *instance)
47265 {
47266- int num = atomic_inc_return(instance) - 1;
47267+ int num = atomic_inc_return_unchecked(instance) - 1;
47268 int len = strlen(basename);
47269
47270 if (basename[len - 1] >= '0' && basename[len - 1] <= '9')
47271diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c
47272index b084072..36706d7 100644
47273--- a/drivers/media/v4l2-core/v4l2-ioctl.c
47274+++ b/drivers/media/v4l2-core/v4l2-ioctl.c
47275@@ -2151,7 +2151,8 @@ struct v4l2_ioctl_info {
47276 struct file *file, void *fh, void *p);
47277 } u;
47278 void (*debug)(const void *arg, bool write_only);
47279-};
47280+} __do_const;
47281+typedef struct v4l2_ioctl_info __no_const v4l2_ioctl_info_no_const;
47282
47283 /* This control needs a priority check */
47284 #define INFO_FL_PRIO (1 << 0)
47285@@ -2335,7 +2336,7 @@ static long __video_do_ioctl(struct file *file,
47286 struct video_device *vfd = video_devdata(file);
47287 const struct v4l2_ioctl_ops *ops = vfd->ioctl_ops;
47288 bool write_only = false;
47289- struct v4l2_ioctl_info default_info;
47290+ v4l2_ioctl_info_no_const default_info;
47291 const struct v4l2_ioctl_info *info;
47292 void *fh = file->private_data;
47293 struct v4l2_fh *vfh = NULL;
47294@@ -2426,7 +2427,7 @@ static int check_array_args(unsigned int cmd, void *parg, size_t *array_size,
47295 ret = -EINVAL;
47296 break;
47297 }
47298- *user_ptr = (void __user *)buf->m.planes;
47299+ *user_ptr = (void __force_user *)buf->m.planes;
47300 *kernel_ptr = (void **)&buf->m.planes;
47301 *array_size = sizeof(struct v4l2_plane) * buf->length;
47302 ret = 1;
47303@@ -2443,7 +2444,7 @@ static int check_array_args(unsigned int cmd, void *parg, size_t *array_size,
47304 ret = -EINVAL;
47305 break;
47306 }
47307- *user_ptr = (void __user *)edid->edid;
47308+ *user_ptr = (void __force_user *)edid->edid;
47309 *kernel_ptr = (void **)&edid->edid;
47310 *array_size = edid->blocks * 128;
47311 ret = 1;
47312@@ -2461,7 +2462,7 @@ static int check_array_args(unsigned int cmd, void *parg, size_t *array_size,
47313 ret = -EINVAL;
47314 break;
47315 }
47316- *user_ptr = (void __user *)ctrls->controls;
47317+ *user_ptr = (void __force_user *)ctrls->controls;
47318 *kernel_ptr = (void **)&ctrls->controls;
47319 *array_size = sizeof(struct v4l2_ext_control)
47320 * ctrls->count;
47321@@ -2562,7 +2563,7 @@ video_usercopy(struct file *file, unsigned int cmd, unsigned long arg,
47322 }
47323
47324 if (has_array_args) {
47325- *kernel_ptr = (void __force *)user_ptr;
47326+ *kernel_ptr = (void __force_kernel *)user_ptr;
47327 if (copy_to_user(user_ptr, mbuf, array_size))
47328 err = -EFAULT;
47329 goto out_array_args;
47330diff --git a/drivers/memory/omap-gpmc.c b/drivers/memory/omap-gpmc.c
47331index 24696f5..3637780 100644
47332--- a/drivers/memory/omap-gpmc.c
47333+++ b/drivers/memory/omap-gpmc.c
47334@@ -211,7 +211,6 @@ struct omap3_gpmc_regs {
47335 };
47336
47337 static struct gpmc_client_irq gpmc_client_irq[GPMC_NR_IRQ];
47338-static struct irq_chip gpmc_irq_chip;
47339 static int gpmc_irq_start;
47340
47341 static struct resource gpmc_mem_root;
47342@@ -939,6 +938,17 @@ static void gpmc_irq_noop(struct irq_data *data) { }
47343
47344 static unsigned int gpmc_irq_noop_ret(struct irq_data *data) { return 0; }
47345
47346+static struct irq_chip gpmc_irq_chip = {
47347+ .name = "gpmc",
47348+ .irq_startup = gpmc_irq_noop_ret,
47349+ .irq_enable = gpmc_irq_enable,
47350+ .irq_disable = gpmc_irq_disable,
47351+ .irq_shutdown = gpmc_irq_noop,
47352+ .irq_ack = gpmc_irq_noop,
47353+ .irq_mask = gpmc_irq_noop,
47354+ .irq_unmask = gpmc_irq_noop,
47355+};
47356+
47357 static int gpmc_setup_irq(void)
47358 {
47359 int i;
47360@@ -953,15 +963,6 @@ static int gpmc_setup_irq(void)
47361 return gpmc_irq_start;
47362 }
47363
47364- gpmc_irq_chip.name = "gpmc";
47365- gpmc_irq_chip.irq_startup = gpmc_irq_noop_ret;
47366- gpmc_irq_chip.irq_enable = gpmc_irq_enable;
47367- gpmc_irq_chip.irq_disable = gpmc_irq_disable;
47368- gpmc_irq_chip.irq_shutdown = gpmc_irq_noop;
47369- gpmc_irq_chip.irq_ack = gpmc_irq_noop;
47370- gpmc_irq_chip.irq_mask = gpmc_irq_noop;
47371- gpmc_irq_chip.irq_unmask = gpmc_irq_noop;
47372-
47373 gpmc_client_irq[0].bitmask = GPMC_IRQ_FIFOEVENTENABLE;
47374 gpmc_client_irq[1].bitmask = GPMC_IRQ_COUNT_EVENT;
47375
47376diff --git a/drivers/message/fusion/mptbase.c b/drivers/message/fusion/mptbase.c
47377index 187f836..679544b 100644
47378--- a/drivers/message/fusion/mptbase.c
47379+++ b/drivers/message/fusion/mptbase.c
47380@@ -6746,8 +6746,13 @@ static int mpt_iocinfo_proc_show(struct seq_file *m, void *v)
47381 seq_printf(m, " MaxChainDepth = 0x%02x frames\n", ioc->facts.MaxChainDepth);
47382 seq_printf(m, " MinBlockSize = 0x%02x bytes\n", 4*ioc->facts.BlockSize);
47383
47384+#ifdef CONFIG_GRKERNSEC_HIDESYM
47385+ seq_printf(m, " RequestFrames @ 0x%p (Dma @ 0x%p)\n", NULL, NULL);
47386+#else
47387 seq_printf(m, " RequestFrames @ 0x%p (Dma @ 0x%p)\n",
47388 (void *)ioc->req_frames, (void *)(ulong)ioc->req_frames_dma);
47389+#endif
47390+
47391 /*
47392 * Rounding UP to nearest 4-kB boundary here...
47393 */
47394@@ -6760,7 +6765,11 @@ static int mpt_iocinfo_proc_show(struct seq_file *m, void *v)
47395 ioc->facts.GlobalCredits);
47396
47397 seq_printf(m, " Frames @ 0x%p (Dma @ 0x%p)\n",
47398+#ifdef CONFIG_GRKERNSEC_HIDESYM
47399+ NULL, NULL);
47400+#else
47401 (void *)ioc->alloc, (void *)(ulong)ioc->alloc_dma);
47402+#endif
47403 sz = (ioc->reply_sz * ioc->reply_depth) + 128;
47404 seq_printf(m, " {CurRepSz=%d} x {CurRepDepth=%d} = %d bytes ^= 0x%x\n",
47405 ioc->reply_sz, ioc->reply_depth, ioc->reply_sz*ioc->reply_depth, sz);
47406diff --git a/drivers/message/fusion/mptsas.c b/drivers/message/fusion/mptsas.c
47407index 5bdaae1..eced16f 100644
47408--- a/drivers/message/fusion/mptsas.c
47409+++ b/drivers/message/fusion/mptsas.c
47410@@ -446,6 +446,23 @@ mptsas_is_end_device(struct mptsas_devinfo * attached)
47411 return 0;
47412 }
47413
47414+static inline void
47415+mptsas_set_rphy(MPT_ADAPTER *ioc, struct mptsas_phyinfo *phy_info, struct sas_rphy *rphy)
47416+{
47417+ if (phy_info->port_details) {
47418+ phy_info->port_details->rphy = rphy;
47419+ dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "sas_rphy_add: rphy=%p\n",
47420+ ioc->name, rphy));
47421+ }
47422+
47423+ if (rphy) {
47424+ dsaswideprintk(ioc, dev_printk(KERN_DEBUG,
47425+ &rphy->dev, MYIOC_s_FMT "add:", ioc->name));
47426+ dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "rphy=%p release=%p\n",
47427+ ioc->name, rphy, rphy->dev.release));
47428+ }
47429+}
47430+
47431 /* no mutex */
47432 static void
47433 mptsas_port_delete(MPT_ADAPTER *ioc, struct mptsas_portinfo_details * port_details)
47434@@ -484,23 +501,6 @@ mptsas_get_rphy(struct mptsas_phyinfo *phy_info)
47435 return NULL;
47436 }
47437
47438-static inline void
47439-mptsas_set_rphy(MPT_ADAPTER *ioc, struct mptsas_phyinfo *phy_info, struct sas_rphy *rphy)
47440-{
47441- if (phy_info->port_details) {
47442- phy_info->port_details->rphy = rphy;
47443- dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "sas_rphy_add: rphy=%p\n",
47444- ioc->name, rphy));
47445- }
47446-
47447- if (rphy) {
47448- dsaswideprintk(ioc, dev_printk(KERN_DEBUG,
47449- &rphy->dev, MYIOC_s_FMT "add:", ioc->name));
47450- dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "rphy=%p release=%p\n",
47451- ioc->name, rphy, rphy->dev.release));
47452- }
47453-}
47454-
47455 static inline struct sas_port *
47456 mptsas_get_port(struct mptsas_phyinfo *phy_info)
47457 {
47458diff --git a/drivers/mfd/ab8500-debugfs.c b/drivers/mfd/ab8500-debugfs.c
47459index 9a8e185..27ff17d 100644
47460--- a/drivers/mfd/ab8500-debugfs.c
47461+++ b/drivers/mfd/ab8500-debugfs.c
47462@@ -100,7 +100,7 @@ static int irq_last;
47463 static u32 *irq_count;
47464 static int num_irqs;
47465
47466-static struct device_attribute **dev_attr;
47467+static device_attribute_no_const **dev_attr;
47468 static char **event_name;
47469
47470 static u8 avg_sample = SAMPLE_16;
47471diff --git a/drivers/mfd/kempld-core.c b/drivers/mfd/kempld-core.c
47472index 5615522..1eb6f3dc 100644
47473--- a/drivers/mfd/kempld-core.c
47474+++ b/drivers/mfd/kempld-core.c
47475@@ -499,7 +499,7 @@ static struct platform_driver kempld_driver = {
47476 .remove = kempld_remove,
47477 };
47478
47479-static struct dmi_system_id kempld_dmi_table[] __initdata = {
47480+static const struct dmi_system_id kempld_dmi_table[] __initconst = {
47481 {
47482 .ident = "BHL6",
47483 .matches = {
47484diff --git a/drivers/mfd/max8925-i2c.c b/drivers/mfd/max8925-i2c.c
47485index c880c89..45a7c68 100644
47486--- a/drivers/mfd/max8925-i2c.c
47487+++ b/drivers/mfd/max8925-i2c.c
47488@@ -152,7 +152,7 @@ static int max8925_probe(struct i2c_client *client,
47489 const struct i2c_device_id *id)
47490 {
47491 struct max8925_platform_data *pdata = dev_get_platdata(&client->dev);
47492- static struct max8925_chip *chip;
47493+ struct max8925_chip *chip;
47494 struct device_node *node = client->dev.of_node;
47495
47496 if (node && !pdata) {
47497diff --git a/drivers/mfd/tps65910.c b/drivers/mfd/tps65910.c
47498index 7612d89..70549c2 100644
47499--- a/drivers/mfd/tps65910.c
47500+++ b/drivers/mfd/tps65910.c
47501@@ -230,7 +230,7 @@ static int tps65910_irq_init(struct tps65910 *tps65910, int irq,
47502 struct tps65910_platform_data *pdata)
47503 {
47504 int ret = 0;
47505- static struct regmap_irq_chip *tps6591x_irqs_chip;
47506+ struct regmap_irq_chip *tps6591x_irqs_chip;
47507
47508 if (!irq) {
47509 dev_warn(tps65910->dev, "No interrupt support, no core IRQ\n");
47510diff --git a/drivers/mfd/twl4030-irq.c b/drivers/mfd/twl4030-irq.c
47511index 1b772ef..01e77d33 100644
47512--- a/drivers/mfd/twl4030-irq.c
47513+++ b/drivers/mfd/twl4030-irq.c
47514@@ -34,6 +34,7 @@
47515 #include <linux/of.h>
47516 #include <linux/irqdomain.h>
47517 #include <linux/i2c/twl.h>
47518+#include <asm/pgtable.h>
47519
47520 #include "twl-core.h"
47521
47522@@ -729,10 +730,12 @@ int twl4030_init_irq(struct device *dev, int irq_num)
47523 * Install an irq handler for each of the SIH modules;
47524 * clone dummy irq_chip since PIH can't *do* anything
47525 */
47526- twl4030_irq_chip = dummy_irq_chip;
47527- twl4030_irq_chip.name = "twl4030";
47528+ pax_open_kernel();
47529+ memcpy((void *)&twl4030_irq_chip, &dummy_irq_chip, sizeof twl4030_irq_chip);
47530+ *(const char **)&twl4030_irq_chip.name = "twl4030";
47531
47532- twl4030_sih_irq_chip.irq_ack = dummy_irq_chip.irq_ack;
47533+ *(void **)&twl4030_sih_irq_chip.irq_ack = dummy_irq_chip.irq_ack;
47534+ pax_close_kernel();
47535
47536 for (i = irq_base; i < irq_end; i++) {
47537 irq_set_chip_and_handler(i, &twl4030_irq_chip,
47538diff --git a/drivers/misc/c2port/core.c b/drivers/misc/c2port/core.c
47539index 464419b..64bae8d 100644
47540--- a/drivers/misc/c2port/core.c
47541+++ b/drivers/misc/c2port/core.c
47542@@ -922,7 +922,9 @@ struct c2port_device *c2port_device_register(char *name,
47543 goto error_idr_alloc;
47544 c2dev->id = ret;
47545
47546- bin_attr_flash_data.size = ops->blocks_num * ops->block_size;
47547+ pax_open_kernel();
47548+ *(size_t *)&bin_attr_flash_data.size = ops->blocks_num * ops->block_size;
47549+ pax_close_kernel();
47550
47551 c2dev->dev = device_create(c2port_class, NULL, 0, c2dev,
47552 "c2port%d", c2dev->id);
47553diff --git a/drivers/misc/eeprom/sunxi_sid.c b/drivers/misc/eeprom/sunxi_sid.c
47554index 8385177..2f54635 100644
47555--- a/drivers/misc/eeprom/sunxi_sid.c
47556+++ b/drivers/misc/eeprom/sunxi_sid.c
47557@@ -126,7 +126,9 @@ static int sunxi_sid_probe(struct platform_device *pdev)
47558
47559 platform_set_drvdata(pdev, sid_data);
47560
47561- sid_bin_attr.size = sid_data->keysize;
47562+ pax_open_kernel();
47563+ *(size_t *)&sid_bin_attr.size = sid_data->keysize;
47564+ pax_close_kernel();
47565 if (device_create_bin_file(&pdev->dev, &sid_bin_attr))
47566 return -ENODEV;
47567
47568diff --git a/drivers/misc/kgdbts.c b/drivers/misc/kgdbts.c
47569index 36f5d52..32311c3 100644
47570--- a/drivers/misc/kgdbts.c
47571+++ b/drivers/misc/kgdbts.c
47572@@ -834,7 +834,7 @@ static void run_plant_and_detach_test(int is_early)
47573 char before[BREAK_INSTR_SIZE];
47574 char after[BREAK_INSTR_SIZE];
47575
47576- probe_kernel_read(before, (char *)kgdbts_break_test,
47577+ probe_kernel_read(before, ktla_ktva((char *)kgdbts_break_test),
47578 BREAK_INSTR_SIZE);
47579 init_simple_test();
47580 ts.tst = plant_and_detach_test;
47581@@ -842,7 +842,7 @@ static void run_plant_and_detach_test(int is_early)
47582 /* Activate test with initial breakpoint */
47583 if (!is_early)
47584 kgdb_breakpoint();
47585- probe_kernel_read(after, (char *)kgdbts_break_test,
47586+ probe_kernel_read(after, ktla_ktva((char *)kgdbts_break_test),
47587 BREAK_INSTR_SIZE);
47588 if (memcmp(before, after, BREAK_INSTR_SIZE)) {
47589 printk(KERN_CRIT "kgdbts: ERROR kgdb corrupted memory\n");
47590diff --git a/drivers/misc/lis3lv02d/lis3lv02d.c b/drivers/misc/lis3lv02d/lis3lv02d.c
47591index 3ef4627..8d00486 100644
47592--- a/drivers/misc/lis3lv02d/lis3lv02d.c
47593+++ b/drivers/misc/lis3lv02d/lis3lv02d.c
47594@@ -497,7 +497,7 @@ static irqreturn_t lis302dl_interrupt(int irq, void *data)
47595 * the lid is closed. This leads to interrupts as soon as a little move
47596 * is done.
47597 */
47598- atomic_inc(&lis3->count);
47599+ atomic_inc_unchecked(&lis3->count);
47600
47601 wake_up_interruptible(&lis3->misc_wait);
47602 kill_fasync(&lis3->async_queue, SIGIO, POLL_IN);
47603@@ -583,7 +583,7 @@ static int lis3lv02d_misc_open(struct inode *inode, struct file *file)
47604 if (lis3->pm_dev)
47605 pm_runtime_get_sync(lis3->pm_dev);
47606
47607- atomic_set(&lis3->count, 0);
47608+ atomic_set_unchecked(&lis3->count, 0);
47609 return 0;
47610 }
47611
47612@@ -615,7 +615,7 @@ static ssize_t lis3lv02d_misc_read(struct file *file, char __user *buf,
47613 add_wait_queue(&lis3->misc_wait, &wait);
47614 while (true) {
47615 set_current_state(TASK_INTERRUPTIBLE);
47616- data = atomic_xchg(&lis3->count, 0);
47617+ data = atomic_xchg_unchecked(&lis3->count, 0);
47618 if (data)
47619 break;
47620
47621@@ -656,7 +656,7 @@ static unsigned int lis3lv02d_misc_poll(struct file *file, poll_table *wait)
47622 struct lis3lv02d, miscdev);
47623
47624 poll_wait(file, &lis3->misc_wait, wait);
47625- if (atomic_read(&lis3->count))
47626+ if (atomic_read_unchecked(&lis3->count))
47627 return POLLIN | POLLRDNORM;
47628 return 0;
47629 }
47630diff --git a/drivers/misc/lis3lv02d/lis3lv02d.h b/drivers/misc/lis3lv02d/lis3lv02d.h
47631index c439c82..1f20f57 100644
47632--- a/drivers/misc/lis3lv02d/lis3lv02d.h
47633+++ b/drivers/misc/lis3lv02d/lis3lv02d.h
47634@@ -297,7 +297,7 @@ struct lis3lv02d {
47635 struct input_polled_dev *idev; /* input device */
47636 struct platform_device *pdev; /* platform device */
47637 struct regulator_bulk_data regulators[2];
47638- atomic_t count; /* interrupt count after last read */
47639+ atomic_unchecked_t count; /* interrupt count after last read */
47640 union axis_conversion ac; /* hw -> logical axis */
47641 int mapped_btns[3];
47642
47643diff --git a/drivers/misc/sgi-gru/gruhandles.c b/drivers/misc/sgi-gru/gruhandles.c
47644index 2f30bad..c4c13d0 100644
47645--- a/drivers/misc/sgi-gru/gruhandles.c
47646+++ b/drivers/misc/sgi-gru/gruhandles.c
47647@@ -44,8 +44,8 @@ static void update_mcs_stats(enum mcs_op op, unsigned long clks)
47648 unsigned long nsec;
47649
47650 nsec = CLKS2NSEC(clks);
47651- atomic_long_inc(&mcs_op_statistics[op].count);
47652- atomic_long_add(nsec, &mcs_op_statistics[op].total);
47653+ atomic_long_inc_unchecked(&mcs_op_statistics[op].count);
47654+ atomic_long_add_unchecked(nsec, &mcs_op_statistics[op].total);
47655 if (mcs_op_statistics[op].max < nsec)
47656 mcs_op_statistics[op].max = nsec;
47657 }
47658diff --git a/drivers/misc/sgi-gru/gruprocfs.c b/drivers/misc/sgi-gru/gruprocfs.c
47659index 4f76359..cdfcb2e 100644
47660--- a/drivers/misc/sgi-gru/gruprocfs.c
47661+++ b/drivers/misc/sgi-gru/gruprocfs.c
47662@@ -32,9 +32,9 @@
47663
47664 #define printstat(s, f) printstat_val(s, &gru_stats.f, #f)
47665
47666-static void printstat_val(struct seq_file *s, atomic_long_t *v, char *id)
47667+static void printstat_val(struct seq_file *s, atomic_long_unchecked_t *v, char *id)
47668 {
47669- unsigned long val = atomic_long_read(v);
47670+ unsigned long val = atomic_long_read_unchecked(v);
47671
47672 seq_printf(s, "%16lu %s\n", val, id);
47673 }
47674@@ -134,8 +134,8 @@ static int mcs_statistics_show(struct seq_file *s, void *p)
47675
47676 seq_printf(s, "%-20s%12s%12s%12s\n", "#id", "count", "aver-clks", "max-clks");
47677 for (op = 0; op < mcsop_last; op++) {
47678- count = atomic_long_read(&mcs_op_statistics[op].count);
47679- total = atomic_long_read(&mcs_op_statistics[op].total);
47680+ count = atomic_long_read_unchecked(&mcs_op_statistics[op].count);
47681+ total = atomic_long_read_unchecked(&mcs_op_statistics[op].total);
47682 max = mcs_op_statistics[op].max;
47683 seq_printf(s, "%-20s%12ld%12ld%12ld\n", id[op], count,
47684 count ? total / count : 0, max);
47685diff --git a/drivers/misc/sgi-gru/grutables.h b/drivers/misc/sgi-gru/grutables.h
47686index 5c3ce24..4915ccb 100644
47687--- a/drivers/misc/sgi-gru/grutables.h
47688+++ b/drivers/misc/sgi-gru/grutables.h
47689@@ -167,82 +167,82 @@ extern unsigned int gru_max_gids;
47690 * GRU statistics.
47691 */
47692 struct gru_stats_s {
47693- atomic_long_t vdata_alloc;
47694- atomic_long_t vdata_free;
47695- atomic_long_t gts_alloc;
47696- atomic_long_t gts_free;
47697- atomic_long_t gms_alloc;
47698- atomic_long_t gms_free;
47699- atomic_long_t gts_double_allocate;
47700- atomic_long_t assign_context;
47701- atomic_long_t assign_context_failed;
47702- atomic_long_t free_context;
47703- atomic_long_t load_user_context;
47704- atomic_long_t load_kernel_context;
47705- atomic_long_t lock_kernel_context;
47706- atomic_long_t unlock_kernel_context;
47707- atomic_long_t steal_user_context;
47708- atomic_long_t steal_kernel_context;
47709- atomic_long_t steal_context_failed;
47710- atomic_long_t nopfn;
47711- atomic_long_t asid_new;
47712- atomic_long_t asid_next;
47713- atomic_long_t asid_wrap;
47714- atomic_long_t asid_reuse;
47715- atomic_long_t intr;
47716- atomic_long_t intr_cbr;
47717- atomic_long_t intr_tfh;
47718- atomic_long_t intr_spurious;
47719- atomic_long_t intr_mm_lock_failed;
47720- atomic_long_t call_os;
47721- atomic_long_t call_os_wait_queue;
47722- atomic_long_t user_flush_tlb;
47723- atomic_long_t user_unload_context;
47724- atomic_long_t user_exception;
47725- atomic_long_t set_context_option;
47726- atomic_long_t check_context_retarget_intr;
47727- atomic_long_t check_context_unload;
47728- atomic_long_t tlb_dropin;
47729- atomic_long_t tlb_preload_page;
47730- atomic_long_t tlb_dropin_fail_no_asid;
47731- atomic_long_t tlb_dropin_fail_upm;
47732- atomic_long_t tlb_dropin_fail_invalid;
47733- atomic_long_t tlb_dropin_fail_range_active;
47734- atomic_long_t tlb_dropin_fail_idle;
47735- atomic_long_t tlb_dropin_fail_fmm;
47736- atomic_long_t tlb_dropin_fail_no_exception;
47737- atomic_long_t tfh_stale_on_fault;
47738- atomic_long_t mmu_invalidate_range;
47739- atomic_long_t mmu_invalidate_page;
47740- atomic_long_t flush_tlb;
47741- atomic_long_t flush_tlb_gru;
47742- atomic_long_t flush_tlb_gru_tgh;
47743- atomic_long_t flush_tlb_gru_zero_asid;
47744+ atomic_long_unchecked_t vdata_alloc;
47745+ atomic_long_unchecked_t vdata_free;
47746+ atomic_long_unchecked_t gts_alloc;
47747+ atomic_long_unchecked_t gts_free;
47748+ atomic_long_unchecked_t gms_alloc;
47749+ atomic_long_unchecked_t gms_free;
47750+ atomic_long_unchecked_t gts_double_allocate;
47751+ atomic_long_unchecked_t assign_context;
47752+ atomic_long_unchecked_t assign_context_failed;
47753+ atomic_long_unchecked_t free_context;
47754+ atomic_long_unchecked_t load_user_context;
47755+ atomic_long_unchecked_t load_kernel_context;
47756+ atomic_long_unchecked_t lock_kernel_context;
47757+ atomic_long_unchecked_t unlock_kernel_context;
47758+ atomic_long_unchecked_t steal_user_context;
47759+ atomic_long_unchecked_t steal_kernel_context;
47760+ atomic_long_unchecked_t steal_context_failed;
47761+ atomic_long_unchecked_t nopfn;
47762+ atomic_long_unchecked_t asid_new;
47763+ atomic_long_unchecked_t asid_next;
47764+ atomic_long_unchecked_t asid_wrap;
47765+ atomic_long_unchecked_t asid_reuse;
47766+ atomic_long_unchecked_t intr;
47767+ atomic_long_unchecked_t intr_cbr;
47768+ atomic_long_unchecked_t intr_tfh;
47769+ atomic_long_unchecked_t intr_spurious;
47770+ atomic_long_unchecked_t intr_mm_lock_failed;
47771+ atomic_long_unchecked_t call_os;
47772+ atomic_long_unchecked_t call_os_wait_queue;
47773+ atomic_long_unchecked_t user_flush_tlb;
47774+ atomic_long_unchecked_t user_unload_context;
47775+ atomic_long_unchecked_t user_exception;
47776+ atomic_long_unchecked_t set_context_option;
47777+ atomic_long_unchecked_t check_context_retarget_intr;
47778+ atomic_long_unchecked_t check_context_unload;
47779+ atomic_long_unchecked_t tlb_dropin;
47780+ atomic_long_unchecked_t tlb_preload_page;
47781+ atomic_long_unchecked_t tlb_dropin_fail_no_asid;
47782+ atomic_long_unchecked_t tlb_dropin_fail_upm;
47783+ atomic_long_unchecked_t tlb_dropin_fail_invalid;
47784+ atomic_long_unchecked_t tlb_dropin_fail_range_active;
47785+ atomic_long_unchecked_t tlb_dropin_fail_idle;
47786+ atomic_long_unchecked_t tlb_dropin_fail_fmm;
47787+ atomic_long_unchecked_t tlb_dropin_fail_no_exception;
47788+ atomic_long_unchecked_t tfh_stale_on_fault;
47789+ atomic_long_unchecked_t mmu_invalidate_range;
47790+ atomic_long_unchecked_t mmu_invalidate_page;
47791+ atomic_long_unchecked_t flush_tlb;
47792+ atomic_long_unchecked_t flush_tlb_gru;
47793+ atomic_long_unchecked_t flush_tlb_gru_tgh;
47794+ atomic_long_unchecked_t flush_tlb_gru_zero_asid;
47795
47796- atomic_long_t copy_gpa;
47797- atomic_long_t read_gpa;
47798+ atomic_long_unchecked_t copy_gpa;
47799+ atomic_long_unchecked_t read_gpa;
47800
47801- atomic_long_t mesq_receive;
47802- atomic_long_t mesq_receive_none;
47803- atomic_long_t mesq_send;
47804- atomic_long_t mesq_send_failed;
47805- atomic_long_t mesq_noop;
47806- atomic_long_t mesq_send_unexpected_error;
47807- atomic_long_t mesq_send_lb_overflow;
47808- atomic_long_t mesq_send_qlimit_reached;
47809- atomic_long_t mesq_send_amo_nacked;
47810- atomic_long_t mesq_send_put_nacked;
47811- atomic_long_t mesq_page_overflow;
47812- atomic_long_t mesq_qf_locked;
47813- atomic_long_t mesq_qf_noop_not_full;
47814- atomic_long_t mesq_qf_switch_head_failed;
47815- atomic_long_t mesq_qf_unexpected_error;
47816- atomic_long_t mesq_noop_unexpected_error;
47817- atomic_long_t mesq_noop_lb_overflow;
47818- atomic_long_t mesq_noop_qlimit_reached;
47819- atomic_long_t mesq_noop_amo_nacked;
47820- atomic_long_t mesq_noop_put_nacked;
47821- atomic_long_t mesq_noop_page_overflow;
47822+ atomic_long_unchecked_t mesq_receive;
47823+ atomic_long_unchecked_t mesq_receive_none;
47824+ atomic_long_unchecked_t mesq_send;
47825+ atomic_long_unchecked_t mesq_send_failed;
47826+ atomic_long_unchecked_t mesq_noop;
47827+ atomic_long_unchecked_t mesq_send_unexpected_error;
47828+ atomic_long_unchecked_t mesq_send_lb_overflow;
47829+ atomic_long_unchecked_t mesq_send_qlimit_reached;
47830+ atomic_long_unchecked_t mesq_send_amo_nacked;
47831+ atomic_long_unchecked_t mesq_send_put_nacked;
47832+ atomic_long_unchecked_t mesq_page_overflow;
47833+ atomic_long_unchecked_t mesq_qf_locked;
47834+ atomic_long_unchecked_t mesq_qf_noop_not_full;
47835+ atomic_long_unchecked_t mesq_qf_switch_head_failed;
47836+ atomic_long_unchecked_t mesq_qf_unexpected_error;
47837+ atomic_long_unchecked_t mesq_noop_unexpected_error;
47838+ atomic_long_unchecked_t mesq_noop_lb_overflow;
47839+ atomic_long_unchecked_t mesq_noop_qlimit_reached;
47840+ atomic_long_unchecked_t mesq_noop_amo_nacked;
47841+ atomic_long_unchecked_t mesq_noop_put_nacked;
47842+ atomic_long_unchecked_t mesq_noop_page_overflow;
47843
47844 };
47845
47846@@ -251,8 +251,8 @@ enum mcs_op {cchop_allocate, cchop_start, cchop_interrupt, cchop_interrupt_sync,
47847 tghop_invalidate, mcsop_last};
47848
47849 struct mcs_op_statistic {
47850- atomic_long_t count;
47851- atomic_long_t total;
47852+ atomic_long_unchecked_t count;
47853+ atomic_long_unchecked_t total;
47854 unsigned long max;
47855 };
47856
47857@@ -275,7 +275,7 @@ extern struct mcs_op_statistic mcs_op_statistics[mcsop_last];
47858
47859 #define STAT(id) do { \
47860 if (gru_options & OPT_STATS) \
47861- atomic_long_inc(&gru_stats.id); \
47862+ atomic_long_inc_unchecked(&gru_stats.id); \
47863 } while (0)
47864
47865 #ifdef CONFIG_SGI_GRU_DEBUG
47866diff --git a/drivers/misc/sgi-xp/xp.h b/drivers/misc/sgi-xp/xp.h
47867index c862cd4..0d176fe 100644
47868--- a/drivers/misc/sgi-xp/xp.h
47869+++ b/drivers/misc/sgi-xp/xp.h
47870@@ -288,7 +288,7 @@ struct xpc_interface {
47871 xpc_notify_func, void *);
47872 void (*received) (short, int, void *);
47873 enum xp_retval (*partid_to_nasids) (short, void *);
47874-};
47875+} __no_const;
47876
47877 extern struct xpc_interface xpc_interface;
47878
47879diff --git a/drivers/misc/sgi-xp/xp_main.c b/drivers/misc/sgi-xp/xp_main.c
47880index 01be66d..e3a0c7e 100644
47881--- a/drivers/misc/sgi-xp/xp_main.c
47882+++ b/drivers/misc/sgi-xp/xp_main.c
47883@@ -78,13 +78,13 @@ xpc_notloaded(void)
47884 }
47885
47886 struct xpc_interface xpc_interface = {
47887- (void (*)(int))xpc_notloaded,
47888- (void (*)(int))xpc_notloaded,
47889- (enum xp_retval(*)(short, int, u32, void *, u16))xpc_notloaded,
47890- (enum xp_retval(*)(short, int, u32, void *, u16, xpc_notify_func,
47891+ .connect = (void (*)(int))xpc_notloaded,
47892+ .disconnect = (void (*)(int))xpc_notloaded,
47893+ .send = (enum xp_retval(*)(short, int, u32, void *, u16))xpc_notloaded,
47894+ .send_notify = (enum xp_retval(*)(short, int, u32, void *, u16, xpc_notify_func,
47895 void *))xpc_notloaded,
47896- (void (*)(short, int, void *))xpc_notloaded,
47897- (enum xp_retval(*)(short, void *))xpc_notloaded
47898+ .received = (void (*)(short, int, void *))xpc_notloaded,
47899+ .partid_to_nasids = (enum xp_retval(*)(short, void *))xpc_notloaded
47900 };
47901 EXPORT_SYMBOL_GPL(xpc_interface);
47902
47903diff --git a/drivers/misc/sgi-xp/xpc.h b/drivers/misc/sgi-xp/xpc.h
47904index b94d5f7..7f494c5 100644
47905--- a/drivers/misc/sgi-xp/xpc.h
47906+++ b/drivers/misc/sgi-xp/xpc.h
47907@@ -835,6 +835,7 @@ struct xpc_arch_operations {
47908 void (*received_payload) (struct xpc_channel *, void *);
47909 void (*notify_senders_of_disconnect) (struct xpc_channel *);
47910 };
47911+typedef struct xpc_arch_operations __no_const xpc_arch_operations_no_const;
47912
47913 /* struct xpc_partition act_state values (for XPC HB) */
47914
47915@@ -876,7 +877,7 @@ extern struct xpc_registration xpc_registrations[];
47916 /* found in xpc_main.c */
47917 extern struct device *xpc_part;
47918 extern struct device *xpc_chan;
47919-extern struct xpc_arch_operations xpc_arch_ops;
47920+extern xpc_arch_operations_no_const xpc_arch_ops;
47921 extern int xpc_disengage_timelimit;
47922 extern int xpc_disengage_timedout;
47923 extern int xpc_activate_IRQ_rcvd;
47924diff --git a/drivers/misc/sgi-xp/xpc_main.c b/drivers/misc/sgi-xp/xpc_main.c
47925index 82dc574..8539ab2 100644
47926--- a/drivers/misc/sgi-xp/xpc_main.c
47927+++ b/drivers/misc/sgi-xp/xpc_main.c
47928@@ -166,7 +166,7 @@ static struct notifier_block xpc_die_notifier = {
47929 .notifier_call = xpc_system_die,
47930 };
47931
47932-struct xpc_arch_operations xpc_arch_ops;
47933+xpc_arch_operations_no_const xpc_arch_ops;
47934
47935 /*
47936 * Timer function to enforce the timelimit on the partition disengage.
47937@@ -1210,7 +1210,7 @@ xpc_system_die(struct notifier_block *nb, unsigned long event, void *_die_args)
47938
47939 if (((die_args->trapnr == X86_TRAP_MF) ||
47940 (die_args->trapnr == X86_TRAP_XF)) &&
47941- !user_mode_vm(die_args->regs))
47942+ !user_mode(die_args->regs))
47943 xpc_die_deactivate();
47944
47945 break;
47946diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c
47947index ed2e71a..54c498e 100644
47948--- a/drivers/mmc/card/block.c
47949+++ b/drivers/mmc/card/block.c
47950@@ -577,7 +577,7 @@ static int mmc_blk_ioctl_cmd(struct block_device *bdev,
47951 if (idata->ic.postsleep_min_us)
47952 usleep_range(idata->ic.postsleep_min_us, idata->ic.postsleep_max_us);
47953
47954- if (copy_to_user(&(ic_ptr->response), cmd.resp, sizeof(cmd.resp))) {
47955+ if (copy_to_user(ic_ptr->response, cmd.resp, sizeof(cmd.resp))) {
47956 err = -EFAULT;
47957 goto cmd_rel_host;
47958 }
47959diff --git a/drivers/mmc/host/dw_mmc.h b/drivers/mmc/host/dw_mmc.h
47960index 18c4afe..43be71e 100644
47961--- a/drivers/mmc/host/dw_mmc.h
47962+++ b/drivers/mmc/host/dw_mmc.h
47963@@ -271,5 +271,5 @@ struct dw_mci_drv_data {
47964 void (*set_ios)(struct dw_mci *host, struct mmc_ios *ios);
47965 int (*parse_dt)(struct dw_mci *host);
47966 int (*execute_tuning)(struct dw_mci_slot *slot);
47967-};
47968+} __do_const;
47969 #endif /* _DW_MMC_H_ */
47970diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
47971index 7fe1619..ae0781b 100644
47972--- a/drivers/mmc/host/mmci.c
47973+++ b/drivers/mmc/host/mmci.c
47974@@ -1630,7 +1630,9 @@ static int mmci_probe(struct amba_device *dev,
47975 mmc->caps |= MMC_CAP_CMD23;
47976
47977 if (variant->busy_detect) {
47978- mmci_ops.card_busy = mmci_card_busy;
47979+ pax_open_kernel();
47980+ *(void **)&mmci_ops.card_busy = mmci_card_busy;
47981+ pax_close_kernel();
47982 mmci_write_datactrlreg(host, MCI_ST_DPSM_BUSYMODE);
47983 mmc->caps |= MMC_CAP_WAIT_WHILE_BUSY;
47984 mmc->max_busy_timeout = 0;
47985diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
47986index f84cfb0..aebe5d6 100644
47987--- a/drivers/mmc/host/omap_hsmmc.c
47988+++ b/drivers/mmc/host/omap_hsmmc.c
47989@@ -2054,7 +2054,9 @@ static int omap_hsmmc_probe(struct platform_device *pdev)
47990
47991 if (host->pdata->controller_flags & OMAP_HSMMC_BROKEN_MULTIBLOCK_READ) {
47992 dev_info(&pdev->dev, "multiblock reads disabled due to 35xx erratum 2.1.1.128; MMC read performance may suffer\n");
47993- omap_hsmmc_ops.multi_io_quirk = omap_hsmmc_multi_io_quirk;
47994+ pax_open_kernel();
47995+ *(void **)&omap_hsmmc_ops.multi_io_quirk = omap_hsmmc_multi_io_quirk;
47996+ pax_close_kernel();
47997 }
47998
47999 pm_runtime_enable(host->dev);
48000diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c
48001index 10ef824..88461a2 100644
48002--- a/drivers/mmc/host/sdhci-esdhc-imx.c
48003+++ b/drivers/mmc/host/sdhci-esdhc-imx.c
48004@@ -989,9 +989,12 @@ static int sdhci_esdhc_imx_probe(struct platform_device *pdev)
48005 host->mmc->caps |= MMC_CAP_1_8V_DDR;
48006 }
48007
48008- if (imx_data->socdata->flags & ESDHC_FLAG_MAN_TUNING)
48009- sdhci_esdhc_ops.platform_execute_tuning =
48010+ if (imx_data->socdata->flags & ESDHC_FLAG_MAN_TUNING) {
48011+ pax_open_kernel();
48012+ *(void **)&sdhci_esdhc_ops.platform_execute_tuning =
48013 esdhc_executing_tuning;
48014+ pax_close_kernel();
48015+ }
48016
48017 if (imx_data->socdata->flags & ESDHC_FLAG_STD_TUNING)
48018 writel(readl(host->ioaddr + ESDHC_TUNING_CTRL) |
48019diff --git a/drivers/mmc/host/sdhci-s3c.c b/drivers/mmc/host/sdhci-s3c.c
48020index c6d2dd7..81b1ca3 100644
48021--- a/drivers/mmc/host/sdhci-s3c.c
48022+++ b/drivers/mmc/host/sdhci-s3c.c
48023@@ -598,9 +598,11 @@ static int sdhci_s3c_probe(struct platform_device *pdev)
48024 * we can use overriding functions instead of default.
48025 */
48026 if (sc->no_divider) {
48027- sdhci_s3c_ops.set_clock = sdhci_cmu_set_clock;
48028- sdhci_s3c_ops.get_min_clock = sdhci_cmu_get_min_clock;
48029- sdhci_s3c_ops.get_max_clock = sdhci_cmu_get_max_clock;
48030+ pax_open_kernel();
48031+ *(void **)&sdhci_s3c_ops.set_clock = sdhci_cmu_set_clock;
48032+ *(void **)&sdhci_s3c_ops.get_min_clock = sdhci_cmu_get_min_clock;
48033+ *(void **)&sdhci_s3c_ops.get_max_clock = sdhci_cmu_get_max_clock;
48034+ pax_close_kernel();
48035 }
48036
48037 /* It supports additional host capabilities if needed */
48038diff --git a/drivers/mtd/chips/cfi_cmdset_0020.c b/drivers/mtd/chips/cfi_cmdset_0020.c
48039index 423666b..81ff5eb 100644
48040--- a/drivers/mtd/chips/cfi_cmdset_0020.c
48041+++ b/drivers/mtd/chips/cfi_cmdset_0020.c
48042@@ -666,7 +666,7 @@ cfi_staa_writev(struct mtd_info *mtd, const struct kvec *vecs,
48043 size_t totlen = 0, thislen;
48044 int ret = 0;
48045 size_t buflen = 0;
48046- static char *buffer;
48047+ char *buffer;
48048
48049 if (!ECCBUF_SIZE) {
48050 /* We should fall back to a general writev implementation.
48051diff --git a/drivers/mtd/nand/denali.c b/drivers/mtd/nand/denali.c
48052index f44c606..aa4e804 100644
48053--- a/drivers/mtd/nand/denali.c
48054+++ b/drivers/mtd/nand/denali.c
48055@@ -24,6 +24,7 @@
48056 #include <linux/slab.h>
48057 #include <linux/mtd/mtd.h>
48058 #include <linux/module.h>
48059+#include <linux/slab.h>
48060
48061 #include "denali.h"
48062
48063diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
48064index 33f3c3c..d6bbe6a 100644
48065--- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
48066+++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
48067@@ -386,7 +386,7 @@ void prepare_data_dma(struct gpmi_nand_data *this, enum dma_data_direction dr)
48068
48069 /* first try to map the upper buffer directly */
48070 if (virt_addr_valid(this->upper_buf) &&
48071- !object_is_on_stack(this->upper_buf)) {
48072+ !object_starts_on_stack(this->upper_buf)) {
48073 sg_init_one(sgl, this->upper_buf, this->upper_len);
48074 ret = dma_map_sg(this->dev, sgl, 1, dr);
48075 if (ret == 0)
48076diff --git a/drivers/mtd/nftlmount.c b/drivers/mtd/nftlmount.c
48077index a5dfbfb..8042ab4 100644
48078--- a/drivers/mtd/nftlmount.c
48079+++ b/drivers/mtd/nftlmount.c
48080@@ -24,6 +24,7 @@
48081 #include <asm/errno.h>
48082 #include <linux/delay.h>
48083 #include <linux/slab.h>
48084+#include <linux/sched.h>
48085 #include <linux/mtd/mtd.h>
48086 #include <linux/mtd/nand.h>
48087 #include <linux/mtd/nftl.h>
48088diff --git a/drivers/mtd/sm_ftl.c b/drivers/mtd/sm_ftl.c
48089index c23184a..4115c41 100644
48090--- a/drivers/mtd/sm_ftl.c
48091+++ b/drivers/mtd/sm_ftl.c
48092@@ -56,7 +56,7 @@ static ssize_t sm_attr_show(struct device *dev, struct device_attribute *attr,
48093 #define SM_CIS_VENDOR_OFFSET 0x59
48094 static struct attribute_group *sm_create_sysfs_attributes(struct sm_ftl *ftl)
48095 {
48096- struct attribute_group *attr_group;
48097+ attribute_group_no_const *attr_group;
48098 struct attribute **attributes;
48099 struct sm_sysfs_attribute *vendor_attribute;
48100 char *vendor;
48101diff --git a/drivers/net/bonding/bond_netlink.c b/drivers/net/bonding/bond_netlink.c
48102index 7b11243..b3278a3 100644
48103--- a/drivers/net/bonding/bond_netlink.c
48104+++ b/drivers/net/bonding/bond_netlink.c
48105@@ -585,7 +585,7 @@ nla_put_failure:
48106 return -EMSGSIZE;
48107 }
48108
48109-struct rtnl_link_ops bond_link_ops __read_mostly = {
48110+struct rtnl_link_ops bond_link_ops = {
48111 .kind = "bond",
48112 .priv_size = sizeof(struct bonding),
48113 .setup = bond_setup,
48114diff --git a/drivers/net/caif/caif_hsi.c b/drivers/net/caif/caif_hsi.c
48115index b3b922a..80bba38 100644
48116--- a/drivers/net/caif/caif_hsi.c
48117+++ b/drivers/net/caif/caif_hsi.c
48118@@ -1444,7 +1444,7 @@ err:
48119 return -ENODEV;
48120 }
48121
48122-static struct rtnl_link_ops caif_hsi_link_ops __read_mostly = {
48123+static struct rtnl_link_ops caif_hsi_link_ops = {
48124 .kind = "cfhsi",
48125 .priv_size = sizeof(struct cfhsi),
48126 .setup = cfhsi_setup,
48127diff --git a/drivers/net/can/Kconfig b/drivers/net/can/Kconfig
48128index 58808f65..0bdc7b3 100644
48129--- a/drivers/net/can/Kconfig
48130+++ b/drivers/net/can/Kconfig
48131@@ -98,7 +98,7 @@ config CAN_JANZ_ICAN3
48132
48133 config CAN_FLEXCAN
48134 tristate "Support for Freescale FLEXCAN based chips"
48135- depends on ARM || PPC
48136+ depends on (ARM && CPU_LITTLE_ENDIAN) || PPC
48137 ---help---
48138 Say Y here if you want to support for Freescale FlexCAN.
48139
48140diff --git a/drivers/net/can/dev.c b/drivers/net/can/dev.c
48141index b0f6924..59e9640 100644
48142--- a/drivers/net/can/dev.c
48143+++ b/drivers/net/can/dev.c
48144@@ -959,7 +959,7 @@ static int can_newlink(struct net *src_net, struct net_device *dev,
48145 return -EOPNOTSUPP;
48146 }
48147
48148-static struct rtnl_link_ops can_link_ops __read_mostly = {
48149+static struct rtnl_link_ops can_link_ops = {
48150 .kind = "can",
48151 .maxtype = IFLA_CAN_MAX,
48152 .policy = can_policy,
48153diff --git a/drivers/net/can/vcan.c b/drivers/net/can/vcan.c
48154index 674f367..ec3a31f 100644
48155--- a/drivers/net/can/vcan.c
48156+++ b/drivers/net/can/vcan.c
48157@@ -163,7 +163,7 @@ static void vcan_setup(struct net_device *dev)
48158 dev->destructor = free_netdev;
48159 }
48160
48161-static struct rtnl_link_ops vcan_link_ops __read_mostly = {
48162+static struct rtnl_link_ops vcan_link_ops = {
48163 .kind = "vcan",
48164 .setup = vcan_setup,
48165 };
48166diff --git a/drivers/net/dummy.c b/drivers/net/dummy.c
48167index 49adbf1..fff7ff8 100644
48168--- a/drivers/net/dummy.c
48169+++ b/drivers/net/dummy.c
48170@@ -164,7 +164,7 @@ static int dummy_validate(struct nlattr *tb[], struct nlattr *data[])
48171 return 0;
48172 }
48173
48174-static struct rtnl_link_ops dummy_link_ops __read_mostly = {
48175+static struct rtnl_link_ops dummy_link_ops = {
48176 .kind = DRV_NAME,
48177 .setup = dummy_setup,
48178 .validate = dummy_validate,
48179diff --git a/drivers/net/ethernet/8390/ax88796.c b/drivers/net/ethernet/8390/ax88796.c
48180index 0443654..4f0aa18 100644
48181--- a/drivers/net/ethernet/8390/ax88796.c
48182+++ b/drivers/net/ethernet/8390/ax88796.c
48183@@ -889,9 +889,11 @@ static int ax_probe(struct platform_device *pdev)
48184 if (ax->plat->reg_offsets)
48185 ei_local->reg_offset = ax->plat->reg_offsets;
48186 else {
48187+ resource_size_t _mem_size = mem_size;
48188+ do_div(_mem_size, 0x18);
48189 ei_local->reg_offset = ax->reg_offsets;
48190 for (ret = 0; ret < 0x18; ret++)
48191- ax->reg_offsets[ret] = (mem_size / 0x18) * ret;
48192+ ax->reg_offsets[ret] = _mem_size * ret;
48193 }
48194
48195 if (!request_mem_region(mem->start, mem_size, pdev->name)) {
48196diff --git a/drivers/net/ethernet/altera/altera_tse_main.c b/drivers/net/ethernet/altera/altera_tse_main.c
48197index 6725dc0..163549c 100644
48198--- a/drivers/net/ethernet/altera/altera_tse_main.c
48199+++ b/drivers/net/ethernet/altera/altera_tse_main.c
48200@@ -1216,7 +1216,7 @@ static int tse_shutdown(struct net_device *dev)
48201 return 0;
48202 }
48203
48204-static struct net_device_ops altera_tse_netdev_ops = {
48205+static net_device_ops_no_const altera_tse_netdev_ops __read_only = {
48206 .ndo_open = tse_open,
48207 .ndo_stop = tse_shutdown,
48208 .ndo_start_xmit = tse_start_xmit,
48209@@ -1453,11 +1453,13 @@ static int altera_tse_probe(struct platform_device *pdev)
48210 ndev->netdev_ops = &altera_tse_netdev_ops;
48211 altera_tse_set_ethtool_ops(ndev);
48212
48213+ pax_open_kernel();
48214 altera_tse_netdev_ops.ndo_set_rx_mode = tse_set_rx_mode;
48215
48216 if (priv->hash_filter)
48217 altera_tse_netdev_ops.ndo_set_rx_mode =
48218 tse_set_rx_mode_hashfilter;
48219+ pax_close_kernel();
48220
48221 /* Scatter/gather IO is not supported,
48222 * so it is turned off
48223diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-common.h b/drivers/net/ethernet/amd/xgbe/xgbe-common.h
48224index 29a0927..5a348e24 100644
48225--- a/drivers/net/ethernet/amd/xgbe/xgbe-common.h
48226+++ b/drivers/net/ethernet/amd/xgbe/xgbe-common.h
48227@@ -1122,14 +1122,14 @@ do { \
48228 * operations, everything works on mask values.
48229 */
48230 #define XMDIO_READ(_pdata, _mmd, _reg) \
48231- ((_pdata)->hw_if.read_mmd_regs((_pdata), 0, \
48232+ ((_pdata)->hw_if->read_mmd_regs((_pdata), 0, \
48233 MII_ADDR_C45 | (_mmd << 16) | ((_reg) & 0xffff)))
48234
48235 #define XMDIO_READ_BITS(_pdata, _mmd, _reg, _mask) \
48236 (XMDIO_READ((_pdata), _mmd, _reg) & _mask)
48237
48238 #define XMDIO_WRITE(_pdata, _mmd, _reg, _val) \
48239- ((_pdata)->hw_if.write_mmd_regs((_pdata), 0, \
48240+ ((_pdata)->hw_if->write_mmd_regs((_pdata), 0, \
48241 MII_ADDR_C45 | (_mmd << 16) | ((_reg) & 0xffff), (_val)))
48242
48243 #define XMDIO_WRITE_BITS(_pdata, _mmd, _reg, _mask, _val) \
48244diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-dcb.c b/drivers/net/ethernet/amd/xgbe/xgbe-dcb.c
48245index 8a50b01..39c1ad0 100644
48246--- a/drivers/net/ethernet/amd/xgbe/xgbe-dcb.c
48247+++ b/drivers/net/ethernet/amd/xgbe/xgbe-dcb.c
48248@@ -187,7 +187,7 @@ static int xgbe_dcb_ieee_setets(struct net_device *netdev,
48249
48250 memcpy(pdata->ets, ets, sizeof(*pdata->ets));
48251
48252- pdata->hw_if.config_dcb_tc(pdata);
48253+ pdata->hw_if->config_dcb_tc(pdata);
48254
48255 return 0;
48256 }
48257@@ -226,7 +226,7 @@ static int xgbe_dcb_ieee_setpfc(struct net_device *netdev,
48258
48259 memcpy(pdata->pfc, pfc, sizeof(*pdata->pfc));
48260
48261- pdata->hw_if.config_dcb_pfc(pdata);
48262+ pdata->hw_if->config_dcb_pfc(pdata);
48263
48264 return 0;
48265 }
48266diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-desc.c b/drivers/net/ethernet/amd/xgbe/xgbe-desc.c
48267index d81fc6b..6f8ab25 100644
48268--- a/drivers/net/ethernet/amd/xgbe/xgbe-desc.c
48269+++ b/drivers/net/ethernet/amd/xgbe/xgbe-desc.c
48270@@ -347,7 +347,7 @@ static int xgbe_map_rx_buffer(struct xgbe_prv_data *pdata,
48271
48272 static void xgbe_wrapper_tx_descriptor_init(struct xgbe_prv_data *pdata)
48273 {
48274- struct xgbe_hw_if *hw_if = &pdata->hw_if;
48275+ struct xgbe_hw_if *hw_if = pdata->hw_if;
48276 struct xgbe_channel *channel;
48277 struct xgbe_ring *ring;
48278 struct xgbe_ring_data *rdata;
48279@@ -388,7 +388,7 @@ static void xgbe_wrapper_tx_descriptor_init(struct xgbe_prv_data *pdata)
48280
48281 static void xgbe_wrapper_rx_descriptor_init(struct xgbe_prv_data *pdata)
48282 {
48283- struct xgbe_hw_if *hw_if = &pdata->hw_if;
48284+ struct xgbe_hw_if *hw_if = pdata->hw_if;
48285 struct xgbe_channel *channel;
48286 struct xgbe_ring *ring;
48287 struct xgbe_ring_desc *rdesc;
48288@@ -620,17 +620,12 @@ err_out:
48289 return 0;
48290 }
48291
48292-void xgbe_init_function_ptrs_desc(struct xgbe_desc_if *desc_if)
48293-{
48294- DBGPR("-->xgbe_init_function_ptrs_desc\n");
48295-
48296- desc_if->alloc_ring_resources = xgbe_alloc_ring_resources;
48297- desc_if->free_ring_resources = xgbe_free_ring_resources;
48298- desc_if->map_tx_skb = xgbe_map_tx_skb;
48299- desc_if->map_rx_buffer = xgbe_map_rx_buffer;
48300- desc_if->unmap_rdata = xgbe_unmap_rdata;
48301- desc_if->wrapper_tx_desc_init = xgbe_wrapper_tx_descriptor_init;
48302- desc_if->wrapper_rx_desc_init = xgbe_wrapper_rx_descriptor_init;
48303-
48304- DBGPR("<--xgbe_init_function_ptrs_desc\n");
48305-}
48306+const struct xgbe_desc_if default_xgbe_desc_if = {
48307+ .alloc_ring_resources = xgbe_alloc_ring_resources,
48308+ .free_ring_resources = xgbe_free_ring_resources,
48309+ .map_tx_skb = xgbe_map_tx_skb,
48310+ .map_rx_buffer = xgbe_map_rx_buffer,
48311+ .unmap_rdata = xgbe_unmap_rdata,
48312+ .wrapper_tx_desc_init = xgbe_wrapper_tx_descriptor_init,
48313+ .wrapper_rx_desc_init = xgbe_wrapper_rx_descriptor_init,
48314+};
48315diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-dev.c b/drivers/net/ethernet/amd/xgbe/xgbe-dev.c
48316index 400757b..d8c53f6 100644
48317--- a/drivers/net/ethernet/amd/xgbe/xgbe-dev.c
48318+++ b/drivers/net/ethernet/amd/xgbe/xgbe-dev.c
48319@@ -2748,7 +2748,7 @@ static void xgbe_powerdown_rx(struct xgbe_prv_data *pdata)
48320
48321 static int xgbe_init(struct xgbe_prv_data *pdata)
48322 {
48323- struct xgbe_desc_if *desc_if = &pdata->desc_if;
48324+ struct xgbe_desc_if *desc_if = pdata->desc_if;
48325 int ret;
48326
48327 DBGPR("-->xgbe_init\n");
48328@@ -2813,108 +2813,103 @@ static int xgbe_init(struct xgbe_prv_data *pdata)
48329 return 0;
48330 }
48331
48332-void xgbe_init_function_ptrs_dev(struct xgbe_hw_if *hw_if)
48333-{
48334- DBGPR("-->xgbe_init_function_ptrs\n");
48335-
48336- hw_if->tx_complete = xgbe_tx_complete;
48337-
48338- hw_if->set_promiscuous_mode = xgbe_set_promiscuous_mode;
48339- hw_if->set_all_multicast_mode = xgbe_set_all_multicast_mode;
48340- hw_if->add_mac_addresses = xgbe_add_mac_addresses;
48341- hw_if->set_mac_address = xgbe_set_mac_address;
48342-
48343- hw_if->enable_rx_csum = xgbe_enable_rx_csum;
48344- hw_if->disable_rx_csum = xgbe_disable_rx_csum;
48345-
48346- hw_if->enable_rx_vlan_stripping = xgbe_enable_rx_vlan_stripping;
48347- hw_if->disable_rx_vlan_stripping = xgbe_disable_rx_vlan_stripping;
48348- hw_if->enable_rx_vlan_filtering = xgbe_enable_rx_vlan_filtering;
48349- hw_if->disable_rx_vlan_filtering = xgbe_disable_rx_vlan_filtering;
48350- hw_if->update_vlan_hash_table = xgbe_update_vlan_hash_table;
48351-
48352- hw_if->read_mmd_regs = xgbe_read_mmd_regs;
48353- hw_if->write_mmd_regs = xgbe_write_mmd_regs;
48354-
48355- hw_if->set_gmii_speed = xgbe_set_gmii_speed;
48356- hw_if->set_gmii_2500_speed = xgbe_set_gmii_2500_speed;
48357- hw_if->set_xgmii_speed = xgbe_set_xgmii_speed;
48358-
48359- hw_if->enable_tx = xgbe_enable_tx;
48360- hw_if->disable_tx = xgbe_disable_tx;
48361- hw_if->enable_rx = xgbe_enable_rx;
48362- hw_if->disable_rx = xgbe_disable_rx;
48363-
48364- hw_if->powerup_tx = xgbe_powerup_tx;
48365- hw_if->powerdown_tx = xgbe_powerdown_tx;
48366- hw_if->powerup_rx = xgbe_powerup_rx;
48367- hw_if->powerdown_rx = xgbe_powerdown_rx;
48368-
48369- hw_if->dev_xmit = xgbe_dev_xmit;
48370- hw_if->dev_read = xgbe_dev_read;
48371- hw_if->enable_int = xgbe_enable_int;
48372- hw_if->disable_int = xgbe_disable_int;
48373- hw_if->init = xgbe_init;
48374- hw_if->exit = xgbe_exit;
48375+const struct xgbe_hw_if default_xgbe_hw_if = {
48376+ .tx_complete = xgbe_tx_complete,
48377+
48378+ .set_promiscuous_mode = xgbe_set_promiscuous_mode,
48379+ .set_all_multicast_mode = xgbe_set_all_multicast_mode,
48380+ .add_mac_addresses = xgbe_add_mac_addresses,
48381+ .set_mac_address = xgbe_set_mac_address,
48382+
48383+ .enable_rx_csum = xgbe_enable_rx_csum,
48384+ .disable_rx_csum = xgbe_disable_rx_csum,
48385+
48386+ .enable_rx_vlan_stripping = xgbe_enable_rx_vlan_stripping,
48387+ .disable_rx_vlan_stripping = xgbe_disable_rx_vlan_stripping,
48388+ .enable_rx_vlan_filtering = xgbe_enable_rx_vlan_filtering,
48389+ .disable_rx_vlan_filtering = xgbe_disable_rx_vlan_filtering,
48390+ .update_vlan_hash_table = xgbe_update_vlan_hash_table,
48391+
48392+ .read_mmd_regs = xgbe_read_mmd_regs,
48393+ .write_mmd_regs = xgbe_write_mmd_regs,
48394+
48395+ .set_gmii_speed = xgbe_set_gmii_speed,
48396+ .set_gmii_2500_speed = xgbe_set_gmii_2500_speed,
48397+ .set_xgmii_speed = xgbe_set_xgmii_speed,
48398+
48399+ .enable_tx = xgbe_enable_tx,
48400+ .disable_tx = xgbe_disable_tx,
48401+ .enable_rx = xgbe_enable_rx,
48402+ .disable_rx = xgbe_disable_rx,
48403+
48404+ .powerup_tx = xgbe_powerup_tx,
48405+ .powerdown_tx = xgbe_powerdown_tx,
48406+ .powerup_rx = xgbe_powerup_rx,
48407+ .powerdown_rx = xgbe_powerdown_rx,
48408+
48409+ .dev_xmit = xgbe_dev_xmit,
48410+ .dev_read = xgbe_dev_read,
48411+ .enable_int = xgbe_enable_int,
48412+ .disable_int = xgbe_disable_int,
48413+ .init = xgbe_init,
48414+ .exit = xgbe_exit,
48415
48416 /* Descriptor related Sequences have to be initialized here */
48417- hw_if->tx_desc_init = xgbe_tx_desc_init;
48418- hw_if->rx_desc_init = xgbe_rx_desc_init;
48419- hw_if->tx_desc_reset = xgbe_tx_desc_reset;
48420- hw_if->rx_desc_reset = xgbe_rx_desc_reset;
48421- hw_if->is_last_desc = xgbe_is_last_desc;
48422- hw_if->is_context_desc = xgbe_is_context_desc;
48423- hw_if->tx_start_xmit = xgbe_tx_start_xmit;
48424+ .tx_desc_init = xgbe_tx_desc_init,
48425+ .rx_desc_init = xgbe_rx_desc_init,
48426+ .tx_desc_reset = xgbe_tx_desc_reset,
48427+ .rx_desc_reset = xgbe_rx_desc_reset,
48428+ .is_last_desc = xgbe_is_last_desc,
48429+ .is_context_desc = xgbe_is_context_desc,
48430+ .tx_start_xmit = xgbe_tx_start_xmit,
48431
48432 /* For FLOW ctrl */
48433- hw_if->config_tx_flow_control = xgbe_config_tx_flow_control;
48434- hw_if->config_rx_flow_control = xgbe_config_rx_flow_control;
48435+ .config_tx_flow_control = xgbe_config_tx_flow_control,
48436+ .config_rx_flow_control = xgbe_config_rx_flow_control,
48437
48438 /* For RX coalescing */
48439- hw_if->config_rx_coalesce = xgbe_config_rx_coalesce;
48440- hw_if->config_tx_coalesce = xgbe_config_tx_coalesce;
48441- hw_if->usec_to_riwt = xgbe_usec_to_riwt;
48442- hw_if->riwt_to_usec = xgbe_riwt_to_usec;
48443+ .config_rx_coalesce = xgbe_config_rx_coalesce,
48444+ .config_tx_coalesce = xgbe_config_tx_coalesce,
48445+ .usec_to_riwt = xgbe_usec_to_riwt,
48446+ .riwt_to_usec = xgbe_riwt_to_usec,
48447
48448 /* For RX and TX threshold config */
48449- hw_if->config_rx_threshold = xgbe_config_rx_threshold;
48450- hw_if->config_tx_threshold = xgbe_config_tx_threshold;
48451+ .config_rx_threshold = xgbe_config_rx_threshold,
48452+ .config_tx_threshold = xgbe_config_tx_threshold,
48453
48454 /* For RX and TX Store and Forward Mode config */
48455- hw_if->config_rsf_mode = xgbe_config_rsf_mode;
48456- hw_if->config_tsf_mode = xgbe_config_tsf_mode;
48457+ .config_rsf_mode = xgbe_config_rsf_mode,
48458+ .config_tsf_mode = xgbe_config_tsf_mode,
48459
48460 /* For TX DMA Operating on Second Frame config */
48461- hw_if->config_osp_mode = xgbe_config_osp_mode;
48462+ .config_osp_mode = xgbe_config_osp_mode,
48463
48464 /* For RX and TX PBL config */
48465- hw_if->config_rx_pbl_val = xgbe_config_rx_pbl_val;
48466- hw_if->get_rx_pbl_val = xgbe_get_rx_pbl_val;
48467- hw_if->config_tx_pbl_val = xgbe_config_tx_pbl_val;
48468- hw_if->get_tx_pbl_val = xgbe_get_tx_pbl_val;
48469- hw_if->config_pblx8 = xgbe_config_pblx8;
48470+ .config_rx_pbl_val = xgbe_config_rx_pbl_val,
48471+ .get_rx_pbl_val = xgbe_get_rx_pbl_val,
48472+ .config_tx_pbl_val = xgbe_config_tx_pbl_val,
48473+ .get_tx_pbl_val = xgbe_get_tx_pbl_val,
48474+ .config_pblx8 = xgbe_config_pblx8,
48475
48476 /* For MMC statistics support */
48477- hw_if->tx_mmc_int = xgbe_tx_mmc_int;
48478- hw_if->rx_mmc_int = xgbe_rx_mmc_int;
48479- hw_if->read_mmc_stats = xgbe_read_mmc_stats;
48480+ .tx_mmc_int = xgbe_tx_mmc_int,
48481+ .rx_mmc_int = xgbe_rx_mmc_int,
48482+ .read_mmc_stats = xgbe_read_mmc_stats,
48483
48484 /* For PTP config */
48485- hw_if->config_tstamp = xgbe_config_tstamp;
48486- hw_if->update_tstamp_addend = xgbe_update_tstamp_addend;
48487- hw_if->set_tstamp_time = xgbe_set_tstamp_time;
48488- hw_if->get_tstamp_time = xgbe_get_tstamp_time;
48489- hw_if->get_tx_tstamp = xgbe_get_tx_tstamp;
48490+ .config_tstamp = xgbe_config_tstamp,
48491+ .update_tstamp_addend = xgbe_update_tstamp_addend,
48492+ .set_tstamp_time = xgbe_set_tstamp_time,
48493+ .get_tstamp_time = xgbe_get_tstamp_time,
48494+ .get_tx_tstamp = xgbe_get_tx_tstamp,
48495
48496 /* For Data Center Bridging config */
48497- hw_if->config_dcb_tc = xgbe_config_dcb_tc;
48498- hw_if->config_dcb_pfc = xgbe_config_dcb_pfc;
48499+ .config_dcb_tc = xgbe_config_dcb_tc,
48500+ .config_dcb_pfc = xgbe_config_dcb_pfc,
48501
48502 /* For Receive Side Scaling */
48503- hw_if->enable_rss = xgbe_enable_rss;
48504- hw_if->disable_rss = xgbe_disable_rss;
48505- hw_if->set_rss_hash_key = xgbe_set_rss_hash_key;
48506- hw_if->set_rss_lookup_table = xgbe_set_rss_lookup_table;
48507-
48508- DBGPR("<--xgbe_init_function_ptrs\n");
48509-}
48510+ .enable_rss = xgbe_enable_rss,
48511+ .disable_rss = xgbe_disable_rss,
48512+ .set_rss_hash_key = xgbe_set_rss_hash_key,
48513+ .set_rss_lookup_table = xgbe_set_rss_lookup_table,
48514+};
48515diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-drv.c b/drivers/net/ethernet/amd/xgbe/xgbe-drv.c
48516index 885b02b..4b31a4c 100644
48517--- a/drivers/net/ethernet/amd/xgbe/xgbe-drv.c
48518+++ b/drivers/net/ethernet/amd/xgbe/xgbe-drv.c
48519@@ -244,7 +244,7 @@ static int xgbe_maybe_stop_tx_queue(struct xgbe_channel *channel,
48520 * support, tell it now
48521 */
48522 if (ring->tx.xmit_more)
48523- pdata->hw_if.tx_start_xmit(channel, ring);
48524+ pdata->hw_if->tx_start_xmit(channel, ring);
48525
48526 return NETDEV_TX_BUSY;
48527 }
48528@@ -272,7 +272,7 @@ static int xgbe_calc_rx_buf_size(struct net_device *netdev, unsigned int mtu)
48529
48530 static void xgbe_enable_rx_tx_ints(struct xgbe_prv_data *pdata)
48531 {
48532- struct xgbe_hw_if *hw_if = &pdata->hw_if;
48533+ struct xgbe_hw_if *hw_if = pdata->hw_if;
48534 struct xgbe_channel *channel;
48535 enum xgbe_int int_id;
48536 unsigned int i;
48537@@ -294,7 +294,7 @@ static void xgbe_enable_rx_tx_ints(struct xgbe_prv_data *pdata)
48538
48539 static void xgbe_disable_rx_tx_ints(struct xgbe_prv_data *pdata)
48540 {
48541- struct xgbe_hw_if *hw_if = &pdata->hw_if;
48542+ struct xgbe_hw_if *hw_if = pdata->hw_if;
48543 struct xgbe_channel *channel;
48544 enum xgbe_int int_id;
48545 unsigned int i;
48546@@ -317,7 +317,7 @@ static void xgbe_disable_rx_tx_ints(struct xgbe_prv_data *pdata)
48547 static irqreturn_t xgbe_isr(int irq, void *data)
48548 {
48549 struct xgbe_prv_data *pdata = data;
48550- struct xgbe_hw_if *hw_if = &pdata->hw_if;
48551+ struct xgbe_hw_if *hw_if = pdata->hw_if;
48552 struct xgbe_channel *channel;
48553 unsigned int dma_isr, dma_ch_isr;
48554 unsigned int mac_isr, mac_tssr;
48555@@ -673,7 +673,7 @@ static void xgbe_free_irqs(struct xgbe_prv_data *pdata)
48556
48557 void xgbe_init_tx_coalesce(struct xgbe_prv_data *pdata)
48558 {
48559- struct xgbe_hw_if *hw_if = &pdata->hw_if;
48560+ struct xgbe_hw_if *hw_if = pdata->hw_if;
48561
48562 DBGPR("-->xgbe_init_tx_coalesce\n");
48563
48564@@ -687,7 +687,7 @@ void xgbe_init_tx_coalesce(struct xgbe_prv_data *pdata)
48565
48566 void xgbe_init_rx_coalesce(struct xgbe_prv_data *pdata)
48567 {
48568- struct xgbe_hw_if *hw_if = &pdata->hw_if;
48569+ struct xgbe_hw_if *hw_if = pdata->hw_if;
48570
48571 DBGPR("-->xgbe_init_rx_coalesce\n");
48572
48573@@ -701,7 +701,7 @@ void xgbe_init_rx_coalesce(struct xgbe_prv_data *pdata)
48574
48575 static void xgbe_free_tx_data(struct xgbe_prv_data *pdata)
48576 {
48577- struct xgbe_desc_if *desc_if = &pdata->desc_if;
48578+ struct xgbe_desc_if *desc_if = pdata->desc_if;
48579 struct xgbe_channel *channel;
48580 struct xgbe_ring *ring;
48581 struct xgbe_ring_data *rdata;
48582@@ -726,7 +726,7 @@ static void xgbe_free_tx_data(struct xgbe_prv_data *pdata)
48583
48584 static void xgbe_free_rx_data(struct xgbe_prv_data *pdata)
48585 {
48586- struct xgbe_desc_if *desc_if = &pdata->desc_if;
48587+ struct xgbe_desc_if *desc_if = pdata->desc_if;
48588 struct xgbe_channel *channel;
48589 struct xgbe_ring *ring;
48590 struct xgbe_ring_data *rdata;
48591@@ -752,7 +752,7 @@ static void xgbe_free_rx_data(struct xgbe_prv_data *pdata)
48592 static void xgbe_adjust_link(struct net_device *netdev)
48593 {
48594 struct xgbe_prv_data *pdata = netdev_priv(netdev);
48595- struct xgbe_hw_if *hw_if = &pdata->hw_if;
48596+ struct xgbe_hw_if *hw_if = pdata->hw_if;
48597 struct phy_device *phydev = pdata->phydev;
48598 int new_state = 0;
48599
48600@@ -860,7 +860,7 @@ static void xgbe_phy_exit(struct xgbe_prv_data *pdata)
48601 int xgbe_powerdown(struct net_device *netdev, unsigned int caller)
48602 {
48603 struct xgbe_prv_data *pdata = netdev_priv(netdev);
48604- struct xgbe_hw_if *hw_if = &pdata->hw_if;
48605+ struct xgbe_hw_if *hw_if = pdata->hw_if;
48606 unsigned long flags;
48607
48608 DBGPR("-->xgbe_powerdown\n");
48609@@ -898,7 +898,7 @@ int xgbe_powerdown(struct net_device *netdev, unsigned int caller)
48610 int xgbe_powerup(struct net_device *netdev, unsigned int caller)
48611 {
48612 struct xgbe_prv_data *pdata = netdev_priv(netdev);
48613- struct xgbe_hw_if *hw_if = &pdata->hw_if;
48614+ struct xgbe_hw_if *hw_if = pdata->hw_if;
48615 unsigned long flags;
48616
48617 DBGPR("-->xgbe_powerup\n");
48618@@ -935,7 +935,7 @@ int xgbe_powerup(struct net_device *netdev, unsigned int caller)
48619
48620 static int xgbe_start(struct xgbe_prv_data *pdata)
48621 {
48622- struct xgbe_hw_if *hw_if = &pdata->hw_if;
48623+ struct xgbe_hw_if *hw_if = pdata->hw_if;
48624 struct net_device *netdev = pdata->netdev;
48625 int ret;
48626
48627@@ -976,7 +976,7 @@ err_napi:
48628
48629 static void xgbe_stop(struct xgbe_prv_data *pdata)
48630 {
48631- struct xgbe_hw_if *hw_if = &pdata->hw_if;
48632+ struct xgbe_hw_if *hw_if = pdata->hw_if;
48633 struct xgbe_channel *channel;
48634 struct net_device *netdev = pdata->netdev;
48635 struct netdev_queue *txq;
48636@@ -1203,7 +1203,7 @@ static int xgbe_set_hwtstamp_settings(struct xgbe_prv_data *pdata,
48637 return -ERANGE;
48638 }
48639
48640- pdata->hw_if.config_tstamp(pdata, mac_tscr);
48641+ pdata->hw_if->config_tstamp(pdata, mac_tscr);
48642
48643 memcpy(&pdata->tstamp_config, &config, sizeof(config));
48644
48645@@ -1352,7 +1352,7 @@ static void xgbe_packet_info(struct xgbe_prv_data *pdata,
48646 static int xgbe_open(struct net_device *netdev)
48647 {
48648 struct xgbe_prv_data *pdata = netdev_priv(netdev);
48649- struct xgbe_desc_if *desc_if = &pdata->desc_if;
48650+ struct xgbe_desc_if *desc_if = pdata->desc_if;
48651 int ret;
48652
48653 DBGPR("-->xgbe_open\n");
48654@@ -1424,7 +1424,7 @@ err_phy_init:
48655 static int xgbe_close(struct net_device *netdev)
48656 {
48657 struct xgbe_prv_data *pdata = netdev_priv(netdev);
48658- struct xgbe_desc_if *desc_if = &pdata->desc_if;
48659+ struct xgbe_desc_if *desc_if = pdata->desc_if;
48660
48661 DBGPR("-->xgbe_close\n");
48662
48663@@ -1452,8 +1452,8 @@ static int xgbe_close(struct net_device *netdev)
48664 static int xgbe_xmit(struct sk_buff *skb, struct net_device *netdev)
48665 {
48666 struct xgbe_prv_data *pdata = netdev_priv(netdev);
48667- struct xgbe_hw_if *hw_if = &pdata->hw_if;
48668- struct xgbe_desc_if *desc_if = &pdata->desc_if;
48669+ struct xgbe_hw_if *hw_if = pdata->hw_if;
48670+ struct xgbe_desc_if *desc_if = pdata->desc_if;
48671 struct xgbe_channel *channel;
48672 struct xgbe_ring *ring;
48673 struct xgbe_packet_data *packet;
48674@@ -1521,7 +1521,7 @@ tx_netdev_return:
48675 static void xgbe_set_rx_mode(struct net_device *netdev)
48676 {
48677 struct xgbe_prv_data *pdata = netdev_priv(netdev);
48678- struct xgbe_hw_if *hw_if = &pdata->hw_if;
48679+ struct xgbe_hw_if *hw_if = pdata->hw_if;
48680 unsigned int pr_mode, am_mode;
48681
48682 DBGPR("-->xgbe_set_rx_mode\n");
48683@@ -1540,7 +1540,7 @@ static void xgbe_set_rx_mode(struct net_device *netdev)
48684 static int xgbe_set_mac_address(struct net_device *netdev, void *addr)
48685 {
48686 struct xgbe_prv_data *pdata = netdev_priv(netdev);
48687- struct xgbe_hw_if *hw_if = &pdata->hw_if;
48688+ struct xgbe_hw_if *hw_if = pdata->hw_if;
48689 struct sockaddr *saddr = addr;
48690
48691 DBGPR("-->xgbe_set_mac_address\n");
48692@@ -1607,7 +1607,7 @@ static struct rtnl_link_stats64 *xgbe_get_stats64(struct net_device *netdev,
48693
48694 DBGPR("-->%s\n", __func__);
48695
48696- pdata->hw_if.read_mmc_stats(pdata);
48697+ pdata->hw_if->read_mmc_stats(pdata);
48698
48699 s->rx_packets = pstats->rxframecount_gb;
48700 s->rx_bytes = pstats->rxoctetcount_gb;
48701@@ -1634,7 +1634,7 @@ static int xgbe_vlan_rx_add_vid(struct net_device *netdev, __be16 proto,
48702 u16 vid)
48703 {
48704 struct xgbe_prv_data *pdata = netdev_priv(netdev);
48705- struct xgbe_hw_if *hw_if = &pdata->hw_if;
48706+ struct xgbe_hw_if *hw_if = pdata->hw_if;
48707
48708 DBGPR("-->%s\n", __func__);
48709
48710@@ -1650,7 +1650,7 @@ static int xgbe_vlan_rx_kill_vid(struct net_device *netdev, __be16 proto,
48711 u16 vid)
48712 {
48713 struct xgbe_prv_data *pdata = netdev_priv(netdev);
48714- struct xgbe_hw_if *hw_if = &pdata->hw_if;
48715+ struct xgbe_hw_if *hw_if = pdata->hw_if;
48716
48717 DBGPR("-->%s\n", __func__);
48718
48719@@ -1716,7 +1716,7 @@ static int xgbe_set_features(struct net_device *netdev,
48720 netdev_features_t features)
48721 {
48722 struct xgbe_prv_data *pdata = netdev_priv(netdev);
48723- struct xgbe_hw_if *hw_if = &pdata->hw_if;
48724+ struct xgbe_hw_if *hw_if = pdata->hw_if;
48725 netdev_features_t rxhash, rxcsum, rxvlan, rxvlan_filter;
48726 int ret = 0;
48727
48728@@ -1781,8 +1781,8 @@ struct net_device_ops *xgbe_get_netdev_ops(void)
48729 static void xgbe_rx_refresh(struct xgbe_channel *channel)
48730 {
48731 struct xgbe_prv_data *pdata = channel->pdata;
48732- struct xgbe_hw_if *hw_if = &pdata->hw_if;
48733- struct xgbe_desc_if *desc_if = &pdata->desc_if;
48734+ struct xgbe_hw_if *hw_if = pdata->hw_if;
48735+ struct xgbe_desc_if *desc_if = pdata->desc_if;
48736 struct xgbe_ring *ring = channel->rx_ring;
48737 struct xgbe_ring_data *rdata;
48738
48739@@ -1835,8 +1835,8 @@ static struct sk_buff *xgbe_create_skb(struct xgbe_prv_data *pdata,
48740 static int xgbe_tx_poll(struct xgbe_channel *channel)
48741 {
48742 struct xgbe_prv_data *pdata = channel->pdata;
48743- struct xgbe_hw_if *hw_if = &pdata->hw_if;
48744- struct xgbe_desc_if *desc_if = &pdata->desc_if;
48745+ struct xgbe_hw_if *hw_if = pdata->hw_if;
48746+ struct xgbe_desc_if *desc_if = pdata->desc_if;
48747 struct xgbe_ring *ring = channel->tx_ring;
48748 struct xgbe_ring_data *rdata;
48749 struct xgbe_ring_desc *rdesc;
48750@@ -1901,7 +1901,7 @@ static int xgbe_tx_poll(struct xgbe_channel *channel)
48751 static int xgbe_rx_poll(struct xgbe_channel *channel, int budget)
48752 {
48753 struct xgbe_prv_data *pdata = channel->pdata;
48754- struct xgbe_hw_if *hw_if = &pdata->hw_if;
48755+ struct xgbe_hw_if *hw_if = pdata->hw_if;
48756 struct xgbe_ring *ring = channel->rx_ring;
48757 struct xgbe_ring_data *rdata;
48758 struct xgbe_packet_data *packet;
48759diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-ethtool.c b/drivers/net/ethernet/amd/xgbe/xgbe-ethtool.c
48760index ebf4893..a8f51c6 100644
48761--- a/drivers/net/ethernet/amd/xgbe/xgbe-ethtool.c
48762+++ b/drivers/net/ethernet/amd/xgbe/xgbe-ethtool.c
48763@@ -203,7 +203,7 @@ static void xgbe_get_ethtool_stats(struct net_device *netdev,
48764
48765 DBGPR("-->%s\n", __func__);
48766
48767- pdata->hw_if.read_mmc_stats(pdata);
48768+ pdata->hw_if->read_mmc_stats(pdata);
48769 for (i = 0; i < XGBE_STATS_COUNT; i++) {
48770 stat = (u8 *)pdata + xgbe_gstring_stats[i].stat_offset;
48771 *data++ = *(u64 *)stat;
48772@@ -378,7 +378,7 @@ static int xgbe_get_coalesce(struct net_device *netdev,
48773 struct ethtool_coalesce *ec)
48774 {
48775 struct xgbe_prv_data *pdata = netdev_priv(netdev);
48776- struct xgbe_hw_if *hw_if = &pdata->hw_if;
48777+ struct xgbe_hw_if *hw_if = pdata->hw_if;
48778 unsigned int riwt;
48779
48780 DBGPR("-->xgbe_get_coalesce\n");
48781@@ -401,7 +401,7 @@ static int xgbe_set_coalesce(struct net_device *netdev,
48782 struct ethtool_coalesce *ec)
48783 {
48784 struct xgbe_prv_data *pdata = netdev_priv(netdev);
48785- struct xgbe_hw_if *hw_if = &pdata->hw_if;
48786+ struct xgbe_hw_if *hw_if = pdata->hw_if;
48787 unsigned int rx_frames, rx_riwt, rx_usecs;
48788 unsigned int tx_frames, tx_usecs;
48789
48790@@ -536,7 +536,7 @@ static int xgbe_set_rxfh(struct net_device *netdev, const u32 *indir,
48791 const u8 *key, const u8 hfunc)
48792 {
48793 struct xgbe_prv_data *pdata = netdev_priv(netdev);
48794- struct xgbe_hw_if *hw_if = &pdata->hw_if;
48795+ struct xgbe_hw_if *hw_if = pdata->hw_if;
48796 unsigned int ret;
48797
48798 if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)
48799diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-main.c b/drivers/net/ethernet/amd/xgbe/xgbe-main.c
48800index 32dd651..225cca3 100644
48801--- a/drivers/net/ethernet/amd/xgbe/xgbe-main.c
48802+++ b/drivers/net/ethernet/amd/xgbe/xgbe-main.c
48803@@ -159,12 +159,6 @@ static void xgbe_default_config(struct xgbe_prv_data *pdata)
48804 DBGPR("<--xgbe_default_config\n");
48805 }
48806
48807-static void xgbe_init_all_fptrs(struct xgbe_prv_data *pdata)
48808-{
48809- xgbe_init_function_ptrs_dev(&pdata->hw_if);
48810- xgbe_init_function_ptrs_desc(&pdata->desc_if);
48811-}
48812-
48813 #ifdef CONFIG_ACPI
48814 static int xgbe_acpi_support(struct xgbe_prv_data *pdata)
48815 {
48816@@ -396,9 +390,8 @@ static int xgbe_probe(struct platform_device *pdev)
48817 memcpy(netdev->dev_addr, pdata->mac_addr, netdev->addr_len);
48818
48819 /* Set all the function pointers */
48820- xgbe_init_all_fptrs(pdata);
48821- hw_if = &pdata->hw_if;
48822- desc_if = &pdata->desc_if;
48823+ hw_if = pdata->hw_if = &default_xgbe_hw_if;
48824+ desc_if = pdata->desc_if = &default_xgbe_desc_if;
48825
48826 /* Issue software reset to device */
48827 hw_if->exit(pdata);
48828diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c b/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c
48829index 59e267f..0842a88 100644
48830--- a/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c
48831+++ b/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c
48832@@ -126,7 +126,7 @@
48833 static int xgbe_mdio_read(struct mii_bus *mii, int prtad, int mmd_reg)
48834 {
48835 struct xgbe_prv_data *pdata = mii->priv;
48836- struct xgbe_hw_if *hw_if = &pdata->hw_if;
48837+ struct xgbe_hw_if *hw_if = pdata->hw_if;
48838 int mmd_data;
48839
48840 DBGPR_MDIO("-->xgbe_mdio_read: prtad=%#x mmd_reg=%#x\n",
48841@@ -143,7 +143,7 @@ static int xgbe_mdio_write(struct mii_bus *mii, int prtad, int mmd_reg,
48842 u16 mmd_val)
48843 {
48844 struct xgbe_prv_data *pdata = mii->priv;
48845- struct xgbe_hw_if *hw_if = &pdata->hw_if;
48846+ struct xgbe_hw_if *hw_if = pdata->hw_if;
48847 int mmd_data = mmd_val;
48848
48849 DBGPR_MDIO("-->xgbe_mdio_write: prtad=%#x mmd_reg=%#x mmd_data=%#x\n",
48850diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-ptp.c b/drivers/net/ethernet/amd/xgbe/xgbe-ptp.c
48851index f326178..8bd7daf 100644
48852--- a/drivers/net/ethernet/amd/xgbe/xgbe-ptp.c
48853+++ b/drivers/net/ethernet/amd/xgbe/xgbe-ptp.c
48854@@ -129,7 +129,7 @@ static cycle_t xgbe_cc_read(const struct cyclecounter *cc)
48855 tstamp_cc);
48856 u64 nsec;
48857
48858- nsec = pdata->hw_if.get_tstamp_time(pdata);
48859+ nsec = pdata->hw_if->get_tstamp_time(pdata);
48860
48861 return nsec;
48862 }
48863@@ -158,7 +158,7 @@ static int xgbe_adjfreq(struct ptp_clock_info *info, s32 delta)
48864
48865 spin_lock_irqsave(&pdata->tstamp_lock, flags);
48866
48867- pdata->hw_if.update_tstamp_addend(pdata, addend);
48868+ pdata->hw_if->update_tstamp_addend(pdata, addend);
48869
48870 spin_unlock_irqrestore(&pdata->tstamp_lock, flags);
48871
48872diff --git a/drivers/net/ethernet/amd/xgbe/xgbe.h b/drivers/net/ethernet/amd/xgbe/xgbe.h
48873index 13e8f95..1d8beef 100644
48874--- a/drivers/net/ethernet/amd/xgbe/xgbe.h
48875+++ b/drivers/net/ethernet/amd/xgbe/xgbe.h
48876@@ -675,8 +675,8 @@ struct xgbe_prv_data {
48877 int dev_irq;
48878 unsigned int per_channel_irq;
48879
48880- struct xgbe_hw_if hw_if;
48881- struct xgbe_desc_if desc_if;
48882+ struct xgbe_hw_if *hw_if;
48883+ struct xgbe_desc_if *desc_if;
48884
48885 /* AXI DMA settings */
48886 unsigned int coherent;
48887@@ -798,6 +798,9 @@ struct xgbe_prv_data {
48888 #endif
48889 };
48890
48891+extern const struct xgbe_hw_if default_xgbe_hw_if;
48892+extern const struct xgbe_desc_if default_xgbe_desc_if;
48893+
48894 /* Function prototypes*/
48895
48896 void xgbe_init_function_ptrs_dev(struct xgbe_hw_if *);
48897diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h
48898index adcacda..fa6e0ae 100644
48899--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h
48900+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h
48901@@ -1065,7 +1065,7 @@ static inline u8 bnx2x_get_path_func_num(struct bnx2x *bp)
48902 static inline void bnx2x_init_bp_objs(struct bnx2x *bp)
48903 {
48904 /* RX_MODE controlling object */
48905- bnx2x_init_rx_mode_obj(bp, &bp->rx_mode_obj);
48906+ bnx2x_init_rx_mode_obj(bp);
48907
48908 /* multicast configuration controlling object */
48909 bnx2x_init_mcast_obj(bp, &bp->mcast_obj, bp->fp->cl_id, bp->fp->cid,
48910diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c
48911index 07cdf9b..b08ecc7 100644
48912--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c
48913+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c
48914@@ -2329,15 +2329,14 @@ int bnx2x_config_rx_mode(struct bnx2x *bp,
48915 return rc;
48916 }
48917
48918-void bnx2x_init_rx_mode_obj(struct bnx2x *bp,
48919- struct bnx2x_rx_mode_obj *o)
48920+void bnx2x_init_rx_mode_obj(struct bnx2x *bp)
48921 {
48922 if (CHIP_IS_E1x(bp)) {
48923- o->wait_comp = bnx2x_empty_rx_mode_wait;
48924- o->config_rx_mode = bnx2x_set_rx_mode_e1x;
48925+ bp->rx_mode_obj.wait_comp = bnx2x_empty_rx_mode_wait;
48926+ bp->rx_mode_obj.config_rx_mode = bnx2x_set_rx_mode_e1x;
48927 } else {
48928- o->wait_comp = bnx2x_wait_rx_mode_comp_e2;
48929- o->config_rx_mode = bnx2x_set_rx_mode_e2;
48930+ bp->rx_mode_obj.wait_comp = bnx2x_wait_rx_mode_comp_e2;
48931+ bp->rx_mode_obj.config_rx_mode = bnx2x_set_rx_mode_e2;
48932 }
48933 }
48934
48935diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.h
48936index 86baecb..ff3bb46 100644
48937--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.h
48938+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.h
48939@@ -1411,8 +1411,7 @@ int bnx2x_vlan_mac_move(struct bnx2x *bp,
48940
48941 /********************* RX MODE ****************/
48942
48943-void bnx2x_init_rx_mode_obj(struct bnx2x *bp,
48944- struct bnx2x_rx_mode_obj *o);
48945+void bnx2x_init_rx_mode_obj(struct bnx2x *bp);
48946
48947 /**
48948 * bnx2x_config_rx_mode - Send and RX_MODE ramrod according to the provided parameters.
48949diff --git a/drivers/net/ethernet/broadcom/tg3.h b/drivers/net/ethernet/broadcom/tg3.h
48950index 31c9f82..e65e986 100644
48951--- a/drivers/net/ethernet/broadcom/tg3.h
48952+++ b/drivers/net/ethernet/broadcom/tg3.h
48953@@ -150,6 +150,7 @@
48954 #define CHIPREV_ID_5750_A0 0x4000
48955 #define CHIPREV_ID_5750_A1 0x4001
48956 #define CHIPREV_ID_5750_A3 0x4003
48957+#define CHIPREV_ID_5750_C1 0x4201
48958 #define CHIPREV_ID_5750_C2 0x4202
48959 #define CHIPREV_ID_5752_A0_HW 0x5000
48960 #define CHIPREV_ID_5752_A0 0x6000
48961diff --git a/drivers/net/ethernet/brocade/bna/bna_enet.c b/drivers/net/ethernet/brocade/bna/bna_enet.c
48962index 903466e..b285864 100644
48963--- a/drivers/net/ethernet/brocade/bna/bna_enet.c
48964+++ b/drivers/net/ethernet/brocade/bna/bna_enet.c
48965@@ -1693,10 +1693,10 @@ bna_cb_ioceth_reset(void *arg)
48966 }
48967
48968 static struct bfa_ioc_cbfn bna_ioceth_cbfn = {
48969- bna_cb_ioceth_enable,
48970- bna_cb_ioceth_disable,
48971- bna_cb_ioceth_hbfail,
48972- bna_cb_ioceth_reset
48973+ .enable_cbfn = bna_cb_ioceth_enable,
48974+ .disable_cbfn = bna_cb_ioceth_disable,
48975+ .hbfail_cbfn = bna_cb_ioceth_hbfail,
48976+ .reset_cbfn = bna_cb_ioceth_reset
48977 };
48978
48979 static void bna_attr_init(struct bna_ioceth *ioceth)
48980diff --git a/drivers/net/ethernet/chelsio/cxgb3/l2t.h b/drivers/net/ethernet/chelsio/cxgb3/l2t.h
48981index 8cffcdf..aadf043 100644
48982--- a/drivers/net/ethernet/chelsio/cxgb3/l2t.h
48983+++ b/drivers/net/ethernet/chelsio/cxgb3/l2t.h
48984@@ -87,7 +87,7 @@ typedef void (*arp_failure_handler_func)(struct t3cdev * dev,
48985 */
48986 struct l2t_skb_cb {
48987 arp_failure_handler_func arp_failure_handler;
48988-};
48989+} __no_const;
48990
48991 #define L2T_SKB_CB(skb) ((struct l2t_skb_cb *)(skb)->cb)
48992
48993diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
48994index d929951..a2c23f5 100644
48995--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
48996+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
48997@@ -2215,7 +2215,7 @@ static void get_regs(struct net_device *dev, struct ethtool_regs *regs,
48998
48999 int i;
49000 struct adapter *ap = netdev2adap(dev);
49001- static const unsigned int *reg_ranges;
49002+ const unsigned int *reg_ranges;
49003 int arr_size = 0, buf_size = 0;
49004
49005 if (is_t4(ap->params.chip)) {
49006diff --git a/drivers/net/ethernet/dec/tulip/de4x5.c b/drivers/net/ethernet/dec/tulip/de4x5.c
49007index badff18..e15c4ec 100644
49008--- a/drivers/net/ethernet/dec/tulip/de4x5.c
49009+++ b/drivers/net/ethernet/dec/tulip/de4x5.c
49010@@ -5373,7 +5373,7 @@ de4x5_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
49011 for (i=0; i<ETH_ALEN; i++) {
49012 tmp.addr[i] = dev->dev_addr[i];
49013 }
49014- if (copy_to_user(ioc->data, tmp.addr, ioc->len)) return -EFAULT;
49015+ if (ioc->len > sizeof tmp.addr || copy_to_user(ioc->data, tmp.addr, ioc->len)) return -EFAULT;
49016 break;
49017
49018 case DE4X5_SET_HWADDR: /* Set the hardware address */
49019@@ -5413,7 +5413,7 @@ de4x5_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
49020 spin_lock_irqsave(&lp->lock, flags);
49021 memcpy(&statbuf, &lp->pktStats, ioc->len);
49022 spin_unlock_irqrestore(&lp->lock, flags);
49023- if (copy_to_user(ioc->data, &statbuf, ioc->len))
49024+ if (ioc->len > sizeof statbuf || copy_to_user(ioc->data, &statbuf, ioc->len))
49025 return -EFAULT;
49026 break;
49027 }
49028diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
49029index 893753f..3b5d790 100644
49030--- a/drivers/net/ethernet/emulex/benet/be_main.c
49031+++ b/drivers/net/ethernet/emulex/benet/be_main.c
49032@@ -536,7 +536,7 @@ static void accumulate_16bit_val(u32 *acc, u16 val)
49033
49034 if (wrapped)
49035 newacc += 65536;
49036- ACCESS_ONCE(*acc) = newacc;
49037+ ACCESS_ONCE_RW(*acc) = newacc;
49038 }
49039
49040 static void populate_erx_stats(struct be_adapter *adapter,
49041diff --git a/drivers/net/ethernet/faraday/ftgmac100.c b/drivers/net/ethernet/faraday/ftgmac100.c
49042index 6d0c5d5..55be363 100644
49043--- a/drivers/net/ethernet/faraday/ftgmac100.c
49044+++ b/drivers/net/ethernet/faraday/ftgmac100.c
49045@@ -30,6 +30,8 @@
49046 #include <linux/netdevice.h>
49047 #include <linux/phy.h>
49048 #include <linux/platform_device.h>
49049+#include <linux/interrupt.h>
49050+#include <linux/irqreturn.h>
49051 #include <net/ip.h>
49052
49053 #include "ftgmac100.h"
49054diff --git a/drivers/net/ethernet/faraday/ftmac100.c b/drivers/net/ethernet/faraday/ftmac100.c
49055index dce5f7b..2433466 100644
49056--- a/drivers/net/ethernet/faraday/ftmac100.c
49057+++ b/drivers/net/ethernet/faraday/ftmac100.c
49058@@ -31,6 +31,8 @@
49059 #include <linux/module.h>
49060 #include <linux/netdevice.h>
49061 #include <linux/platform_device.h>
49062+#include <linux/interrupt.h>
49063+#include <linux/irqreturn.h>
49064
49065 #include "ftmac100.h"
49066
49067diff --git a/drivers/net/ethernet/intel/i40e/i40e_ptp.c b/drivers/net/ethernet/intel/i40e/i40e_ptp.c
49068index fabcfa1..188fd22 100644
49069--- a/drivers/net/ethernet/intel/i40e/i40e_ptp.c
49070+++ b/drivers/net/ethernet/intel/i40e/i40e_ptp.c
49071@@ -419,7 +419,7 @@ void i40e_ptp_set_increment(struct i40e_pf *pf)
49072 wr32(hw, I40E_PRTTSYN_INC_H, incval >> 32);
49073
49074 /* Update the base adjustement value. */
49075- ACCESS_ONCE(pf->ptp_base_adj) = incval;
49076+ ACCESS_ONCE_RW(pf->ptp_base_adj) = incval;
49077 smp_mb(); /* Force the above update. */
49078 }
49079
49080diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c
49081index 79c00f5..8da39f6 100644
49082--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c
49083+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c
49084@@ -785,7 +785,7 @@ void ixgbe_ptp_start_cyclecounter(struct ixgbe_adapter *adapter)
49085 }
49086
49087 /* update the base incval used to calculate frequency adjustment */
49088- ACCESS_ONCE(adapter->base_incval) = incval;
49089+ ACCESS_ONCE_RW(adapter->base_incval) = incval;
49090 smp_mb();
49091
49092 /* need lock to prevent incorrect read while modifying cyclecounter */
49093diff --git a/drivers/net/ethernet/mellanox/mlx4/en_tx.c b/drivers/net/ethernet/mellanox/mlx4/en_tx.c
49094index 8c234ec..757331f 100644
49095--- a/drivers/net/ethernet/mellanox/mlx4/en_tx.c
49096+++ b/drivers/net/ethernet/mellanox/mlx4/en_tx.c
49097@@ -468,8 +468,8 @@ static bool mlx4_en_process_tx_cq(struct net_device *dev,
49098 wmb();
49099
49100 /* we want to dirty this cache line once */
49101- ACCESS_ONCE(ring->last_nr_txbb) = last_nr_txbb;
49102- ACCESS_ONCE(ring->cons) = ring_cons + txbbs_skipped;
49103+ ACCESS_ONCE_RW(ring->last_nr_txbb) = last_nr_txbb;
49104+ ACCESS_ONCE_RW(ring->cons) = ring_cons + txbbs_skipped;
49105
49106 netdev_tx_completed_queue(ring->tx_queue, packets, bytes);
49107
49108diff --git a/drivers/net/ethernet/neterion/vxge/vxge-config.c b/drivers/net/ethernet/neterion/vxge/vxge-config.c
49109index 6223930..975033d 100644
49110--- a/drivers/net/ethernet/neterion/vxge/vxge-config.c
49111+++ b/drivers/net/ethernet/neterion/vxge/vxge-config.c
49112@@ -3457,7 +3457,10 @@ __vxge_hw_fifo_create(struct __vxge_hw_vpath_handle *vp,
49113 struct __vxge_hw_fifo *fifo;
49114 struct vxge_hw_fifo_config *config;
49115 u32 txdl_size, txdl_per_memblock;
49116- struct vxge_hw_mempool_cbs fifo_mp_callback;
49117+ static struct vxge_hw_mempool_cbs fifo_mp_callback = {
49118+ .item_func_alloc = __vxge_hw_fifo_mempool_item_alloc,
49119+ };
49120+
49121 struct __vxge_hw_virtualpath *vpath;
49122
49123 if ((vp == NULL) || (attr == NULL)) {
49124@@ -3540,8 +3543,6 @@ __vxge_hw_fifo_create(struct __vxge_hw_vpath_handle *vp,
49125 goto exit;
49126 }
49127
49128- fifo_mp_callback.item_func_alloc = __vxge_hw_fifo_mempool_item_alloc;
49129-
49130 fifo->mempool =
49131 __vxge_hw_mempool_create(vpath->hldev,
49132 fifo->config->memblock_size,
49133diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
49134index 2bb48d5..d1a865d 100644
49135--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
49136+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
49137@@ -2324,7 +2324,9 @@ int qlcnic_83xx_configure_opmode(struct qlcnic_adapter *adapter)
49138 max_tx_rings = QLCNIC_MAX_VNIC_TX_RINGS;
49139 } else if (ret == QLC_83XX_DEFAULT_OPMODE) {
49140 ahw->nic_mode = QLCNIC_DEFAULT_MODE;
49141- adapter->nic_ops->init_driver = qlcnic_83xx_init_default_driver;
49142+ pax_open_kernel();
49143+ *(void **)&adapter->nic_ops->init_driver = qlcnic_83xx_init_default_driver;
49144+ pax_close_kernel();
49145 ahw->idc.state_entry = qlcnic_83xx_idc_ready_state_entry;
49146 max_sds_rings = QLCNIC_MAX_SDS_RINGS;
49147 max_tx_rings = QLCNIC_MAX_TX_RINGS;
49148diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_vnic.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_vnic.c
49149index be7d7a6..a8983f8 100644
49150--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_vnic.c
49151+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_vnic.c
49152@@ -207,17 +207,23 @@ int qlcnic_83xx_config_vnic_opmode(struct qlcnic_adapter *adapter)
49153 case QLCNIC_NON_PRIV_FUNC:
49154 ahw->op_mode = QLCNIC_NON_PRIV_FUNC;
49155 ahw->idc.state_entry = qlcnic_83xx_idc_ready_state_entry;
49156- nic_ops->init_driver = qlcnic_83xx_init_non_privileged_vnic;
49157+ pax_open_kernel();
49158+ *(void **)&nic_ops->init_driver = qlcnic_83xx_init_non_privileged_vnic;
49159+ pax_close_kernel();
49160 break;
49161 case QLCNIC_PRIV_FUNC:
49162 ahw->op_mode = QLCNIC_PRIV_FUNC;
49163 ahw->idc.state_entry = qlcnic_83xx_idc_vnic_pf_entry;
49164- nic_ops->init_driver = qlcnic_83xx_init_privileged_vnic;
49165+ pax_open_kernel();
49166+ *(void **)&nic_ops->init_driver = qlcnic_83xx_init_privileged_vnic;
49167+ pax_close_kernel();
49168 break;
49169 case QLCNIC_MGMT_FUNC:
49170 ahw->op_mode = QLCNIC_MGMT_FUNC;
49171 ahw->idc.state_entry = qlcnic_83xx_idc_ready_state_entry;
49172- nic_ops->init_driver = qlcnic_83xx_init_mgmt_vnic;
49173+ pax_open_kernel();
49174+ *(void **)&nic_ops->init_driver = qlcnic_83xx_init_mgmt_vnic;
49175+ pax_close_kernel();
49176 break;
49177 default:
49178 dev_err(&adapter->pdev->dev, "Invalid Virtual NIC opmode\n");
49179diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_minidump.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_minidump.c
49180index 332bb8a..e6adcd1 100644
49181--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_minidump.c
49182+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_minidump.c
49183@@ -1285,7 +1285,7 @@ flash_temp:
49184 int qlcnic_dump_fw(struct qlcnic_adapter *adapter)
49185 {
49186 struct qlcnic_fw_dump *fw_dump = &adapter->ahw->fw_dump;
49187- static const struct qlcnic_dump_operations *fw_dump_ops;
49188+ const struct qlcnic_dump_operations *fw_dump_ops;
49189 struct qlcnic_83xx_dump_template_hdr *hdr_83xx;
49190 u32 entry_offset, dump, no_entries, buf_offset = 0;
49191 int i, k, ops_cnt, ops_index, dump_size = 0;
49192diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c
49193index c70ab40..00b28e0 100644
49194--- a/drivers/net/ethernet/realtek/r8169.c
49195+++ b/drivers/net/ethernet/realtek/r8169.c
49196@@ -788,22 +788,22 @@ struct rtl8169_private {
49197 struct mdio_ops {
49198 void (*write)(struct rtl8169_private *, int, int);
49199 int (*read)(struct rtl8169_private *, int);
49200- } mdio_ops;
49201+ } __no_const mdio_ops;
49202
49203 struct pll_power_ops {
49204 void (*down)(struct rtl8169_private *);
49205 void (*up)(struct rtl8169_private *);
49206- } pll_power_ops;
49207+ } __no_const pll_power_ops;
49208
49209 struct jumbo_ops {
49210 void (*enable)(struct rtl8169_private *);
49211 void (*disable)(struct rtl8169_private *);
49212- } jumbo_ops;
49213+ } __no_const jumbo_ops;
49214
49215 struct csi_ops {
49216 void (*write)(struct rtl8169_private *, int, int);
49217 u32 (*read)(struct rtl8169_private *, int);
49218- } csi_ops;
49219+ } __no_const csi_ops;
49220
49221 int (*set_speed)(struct net_device *, u8 aneg, u16 sp, u8 dpx, u32 adv);
49222 int (*get_settings)(struct net_device *, struct ethtool_cmd *);
49223diff --git a/drivers/net/ethernet/sfc/ptp.c b/drivers/net/ethernet/sfc/ptp.c
49224index 6b861e3..204ac86 100644
49225--- a/drivers/net/ethernet/sfc/ptp.c
49226+++ b/drivers/net/ethernet/sfc/ptp.c
49227@@ -822,7 +822,7 @@ static int efx_ptp_synchronize(struct efx_nic *efx, unsigned int num_readings)
49228 ptp->start.dma_addr);
49229
49230 /* Clear flag that signals MC ready */
49231- ACCESS_ONCE(*start) = 0;
49232+ ACCESS_ONCE_RW(*start) = 0;
49233 rc = efx_mcdi_rpc_start(efx, MC_CMD_PTP, synch_buf,
49234 MC_CMD_PTP_IN_SYNCHRONIZE_LEN);
49235 EFX_BUG_ON_PARANOID(rc);
49236diff --git a/drivers/net/ethernet/sfc/selftest.c b/drivers/net/ethernet/sfc/selftest.c
49237index 10b6173..b605dfd5 100644
49238--- a/drivers/net/ethernet/sfc/selftest.c
49239+++ b/drivers/net/ethernet/sfc/selftest.c
49240@@ -46,7 +46,7 @@ struct efx_loopback_payload {
49241 struct iphdr ip;
49242 struct udphdr udp;
49243 __be16 iteration;
49244- const char msg[64];
49245+ char msg[64];
49246 } __packed;
49247
49248 /* Loopback test source MAC address */
49249diff --git a/drivers/net/ethernet/stmicro/stmmac/mmc_core.c b/drivers/net/ethernet/stmicro/stmmac/mmc_core.c
49250index 08c483b..2c4a553 100644
49251--- a/drivers/net/ethernet/stmicro/stmmac/mmc_core.c
49252+++ b/drivers/net/ethernet/stmicro/stmmac/mmc_core.c
49253@@ -140,8 +140,8 @@ void dwmac_mmc_ctrl(void __iomem *ioaddr, unsigned int mode)
49254
49255 writel(value, ioaddr + MMC_CNTRL);
49256
49257- pr_debug("stmmac: MMC ctrl register (offset 0x%x): 0x%08x\n",
49258- MMC_CNTRL, value);
49259+// pr_debug("stmmac: MMC ctrl register (offset 0x%x): 0x%08x\n",
49260+// MMC_CNTRL, value);
49261 }
49262
49263 /* To mask all all interrupts.*/
49264diff --git a/drivers/net/ethernet/via/via-rhine.c b/drivers/net/ethernet/via/via-rhine.c
49265index 17e2766..c332f1e 100644
49266--- a/drivers/net/ethernet/via/via-rhine.c
49267+++ b/drivers/net/ethernet/via/via-rhine.c
49268@@ -2514,7 +2514,7 @@ static struct platform_driver rhine_driver_platform = {
49269 }
49270 };
49271
49272-static struct dmi_system_id rhine_dmi_table[] __initdata = {
49273+static const struct dmi_system_id rhine_dmi_table[] __initconst = {
49274 {
49275 .ident = "EPIA-M",
49276 .matches = {
49277diff --git a/drivers/net/hyperv/hyperv_net.h b/drivers/net/hyperv/hyperv_net.h
49278index 384ca4f..dd7d4f9 100644
49279--- a/drivers/net/hyperv/hyperv_net.h
49280+++ b/drivers/net/hyperv/hyperv_net.h
49281@@ -171,7 +171,7 @@ struct rndis_device {
49282 enum rndis_device_state state;
49283 bool link_state;
49284 bool link_change;
49285- atomic_t new_req_id;
49286+ atomic_unchecked_t new_req_id;
49287
49288 spinlock_t request_lock;
49289 struct list_head req_list;
49290diff --git a/drivers/net/hyperv/rndis_filter.c b/drivers/net/hyperv/rndis_filter.c
49291index 7816d98..7890614 100644
49292--- a/drivers/net/hyperv/rndis_filter.c
49293+++ b/drivers/net/hyperv/rndis_filter.c
49294@@ -102,7 +102,7 @@ static struct rndis_request *get_rndis_request(struct rndis_device *dev,
49295 * template
49296 */
49297 set = &rndis_msg->msg.set_req;
49298- set->req_id = atomic_inc_return(&dev->new_req_id);
49299+ set->req_id = atomic_inc_return_unchecked(&dev->new_req_id);
49300
49301 /* Add to the request list */
49302 spin_lock_irqsave(&dev->request_lock, flags);
49303@@ -918,7 +918,7 @@ static void rndis_filter_halt_device(struct rndis_device *dev)
49304
49305 /* Setup the rndis set */
49306 halt = &request->request_msg.msg.halt_req;
49307- halt->req_id = atomic_inc_return(&dev->new_req_id);
49308+ halt->req_id = atomic_inc_return_unchecked(&dev->new_req_id);
49309
49310 /* Ignore return since this msg is optional. */
49311 rndis_filter_send_request(dev, request);
49312diff --git a/drivers/net/ifb.c b/drivers/net/ifb.c
49313index 34f846b..4a0d5b1 100644
49314--- a/drivers/net/ifb.c
49315+++ b/drivers/net/ifb.c
49316@@ -253,7 +253,7 @@ static int ifb_validate(struct nlattr *tb[], struct nlattr *data[])
49317 return 0;
49318 }
49319
49320-static struct rtnl_link_ops ifb_link_ops __read_mostly = {
49321+static struct rtnl_link_ops ifb_link_ops = {
49322 .kind = "ifb",
49323 .priv_size = sizeof(struct ifb_private),
49324 .setup = ifb_setup,
49325diff --git a/drivers/net/macvlan.c b/drivers/net/macvlan.c
49326index 1df38bd..4bc20b0 100644
49327--- a/drivers/net/macvlan.c
49328+++ b/drivers/net/macvlan.c
49329@@ -335,7 +335,7 @@ static void macvlan_broadcast_enqueue(struct macvlan_port *port,
49330 free_nskb:
49331 kfree_skb(nskb);
49332 err:
49333- atomic_long_inc(&skb->dev->rx_dropped);
49334+ atomic_long_inc_unchecked(&skb->dev->rx_dropped);
49335 }
49336
49337 static void macvlan_flush_sources(struct macvlan_port *port,
49338@@ -1459,13 +1459,15 @@ static const struct nla_policy macvlan_policy[IFLA_MACVLAN_MAX + 1] = {
49339 int macvlan_link_register(struct rtnl_link_ops *ops)
49340 {
49341 /* common fields */
49342- ops->priv_size = sizeof(struct macvlan_dev);
49343- ops->validate = macvlan_validate;
49344- ops->maxtype = IFLA_MACVLAN_MAX;
49345- ops->policy = macvlan_policy;
49346- ops->changelink = macvlan_changelink;
49347- ops->get_size = macvlan_get_size;
49348- ops->fill_info = macvlan_fill_info;
49349+ pax_open_kernel();
49350+ *(size_t *)&ops->priv_size = sizeof(struct macvlan_dev);
49351+ *(void **)&ops->validate = macvlan_validate;
49352+ *(int *)&ops->maxtype = IFLA_MACVLAN_MAX;
49353+ *(const void **)&ops->policy = macvlan_policy;
49354+ *(void **)&ops->changelink = macvlan_changelink;
49355+ *(void **)&ops->get_size = macvlan_get_size;
49356+ *(void **)&ops->fill_info = macvlan_fill_info;
49357+ pax_close_kernel();
49358
49359 return rtnl_link_register(ops);
49360 };
49361@@ -1551,7 +1553,7 @@ static int macvlan_device_event(struct notifier_block *unused,
49362 return NOTIFY_DONE;
49363 }
49364
49365-static struct notifier_block macvlan_notifier_block __read_mostly = {
49366+static struct notifier_block macvlan_notifier_block = {
49367 .notifier_call = macvlan_device_event,
49368 };
49369
49370diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c
49371index 27ecc5c..f636328 100644
49372--- a/drivers/net/macvtap.c
49373+++ b/drivers/net/macvtap.c
49374@@ -436,7 +436,7 @@ static void macvtap_setup(struct net_device *dev)
49375 dev->tx_queue_len = TUN_READQ_SIZE;
49376 }
49377
49378-static struct rtnl_link_ops macvtap_link_ops __read_mostly = {
49379+static struct rtnl_link_ops macvtap_link_ops = {
49380 .kind = "macvtap",
49381 .setup = macvtap_setup,
49382 .newlink = macvtap_newlink,
49383@@ -1033,7 +1033,7 @@ static long macvtap_ioctl(struct file *file, unsigned int cmd,
49384
49385 ret = 0;
49386 u = q->flags;
49387- if (copy_to_user(&ifr->ifr_name, vlan->dev->name, IFNAMSIZ) ||
49388+ if (copy_to_user(ifr->ifr_name, vlan->dev->name, IFNAMSIZ) ||
49389 put_user(u, &ifr->ifr_flags))
49390 ret = -EFAULT;
49391 macvtap_put_vlan(vlan);
49392@@ -1217,7 +1217,7 @@ static int macvtap_device_event(struct notifier_block *unused,
49393 return NOTIFY_DONE;
49394 }
49395
49396-static struct notifier_block macvtap_notifier_block __read_mostly = {
49397+static struct notifier_block macvtap_notifier_block = {
49398 .notifier_call = macvtap_device_event,
49399 };
49400
49401diff --git a/drivers/net/nlmon.c b/drivers/net/nlmon.c
49402index 34924df..a747360 100644
49403--- a/drivers/net/nlmon.c
49404+++ b/drivers/net/nlmon.c
49405@@ -154,7 +154,7 @@ static int nlmon_validate(struct nlattr *tb[], struct nlattr *data[])
49406 return 0;
49407 }
49408
49409-static struct rtnl_link_ops nlmon_link_ops __read_mostly = {
49410+static struct rtnl_link_ops nlmon_link_ops = {
49411 .kind = "nlmon",
49412 .priv_size = sizeof(struct nlmon),
49413 .setup = nlmon_setup,
49414diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
49415index bdfe51f..e7845c7 100644
49416--- a/drivers/net/phy/phy_device.c
49417+++ b/drivers/net/phy/phy_device.c
49418@@ -218,7 +218,7 @@ EXPORT_SYMBOL(phy_device_create);
49419 * zero on success.
49420 *
49421 */
49422-static int get_phy_c45_ids(struct mii_bus *bus, int addr, u32 *phy_id,
49423+static int get_phy_c45_ids(struct mii_bus *bus, int addr, int *phy_id,
49424 struct phy_c45_device_ids *c45_ids) {
49425 int phy_reg;
49426 int i, reg_addr;
49427@@ -288,7 +288,7 @@ static int get_phy_c45_ids(struct mii_bus *bus, int addr, u32 *phy_id,
49428 * its return value is in turn returned.
49429 *
49430 */
49431-static int get_phy_id(struct mii_bus *bus, int addr, u32 *phy_id,
49432+static int get_phy_id(struct mii_bus *bus, int addr, int *phy_id,
49433 bool is_c45, struct phy_c45_device_ids *c45_ids)
49434 {
49435 int phy_reg;
49436@@ -326,7 +326,7 @@ static int get_phy_id(struct mii_bus *bus, int addr, u32 *phy_id,
49437 struct phy_device *get_phy_device(struct mii_bus *bus, int addr, bool is_c45)
49438 {
49439 struct phy_c45_device_ids c45_ids = {0};
49440- u32 phy_id = 0;
49441+ int phy_id = 0;
49442 int r;
49443
49444 r = get_phy_id(bus, addr, &phy_id, is_c45, &c45_ids);
49445diff --git a/drivers/net/ppp/ppp_generic.c b/drivers/net/ppp/ppp_generic.c
49446index 9d15566..5ad4ef6 100644
49447--- a/drivers/net/ppp/ppp_generic.c
49448+++ b/drivers/net/ppp/ppp_generic.c
49449@@ -1022,7 +1022,6 @@ ppp_net_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
49450 void __user *addr = (void __user *) ifr->ifr_ifru.ifru_data;
49451 struct ppp_stats stats;
49452 struct ppp_comp_stats cstats;
49453- char *vers;
49454
49455 switch (cmd) {
49456 case SIOCGPPPSTATS:
49457@@ -1044,8 +1043,7 @@ ppp_net_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
49458 break;
49459
49460 case SIOCGPPPVER:
49461- vers = PPP_VERSION;
49462- if (copy_to_user(addr, vers, strlen(vers) + 1))
49463+ if (copy_to_user(addr, PPP_VERSION, sizeof(PPP_VERSION)))
49464 break;
49465 err = 0;
49466 break;
49467diff --git a/drivers/net/slip/slhc.c b/drivers/net/slip/slhc.c
49468index 079f7ad..b2a2bfa7 100644
49469--- a/drivers/net/slip/slhc.c
49470+++ b/drivers/net/slip/slhc.c
49471@@ -487,7 +487,7 @@ slhc_uncompress(struct slcompress *comp, unsigned char *icp, int isize)
49472 register struct tcphdr *thp;
49473 register struct iphdr *ip;
49474 register struct cstate *cs;
49475- int len, hdrlen;
49476+ long len, hdrlen;
49477 unsigned char *cp = icp;
49478
49479 /* We've got a compressed packet; read the change byte */
49480diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c
49481index 7d39484..d58499d 100644
49482--- a/drivers/net/team/team.c
49483+++ b/drivers/net/team/team.c
49484@@ -2099,7 +2099,7 @@ static unsigned int team_get_num_rx_queues(void)
49485 return TEAM_DEFAULT_NUM_RX_QUEUES;
49486 }
49487
49488-static struct rtnl_link_ops team_link_ops __read_mostly = {
49489+static struct rtnl_link_ops team_link_ops = {
49490 .kind = DRV_NAME,
49491 .priv_size = sizeof(struct team),
49492 .setup = team_setup,
49493@@ -2889,7 +2889,7 @@ static int team_device_event(struct notifier_block *unused,
49494 return NOTIFY_DONE;
49495 }
49496
49497-static struct notifier_block team_notifier_block __read_mostly = {
49498+static struct notifier_block team_notifier_block = {
49499 .notifier_call = team_device_event,
49500 };
49501
49502diff --git a/drivers/net/tun.c b/drivers/net/tun.c
49503index 857dca4..642f532 100644
49504--- a/drivers/net/tun.c
49505+++ b/drivers/net/tun.c
49506@@ -1421,7 +1421,7 @@ static int tun_validate(struct nlattr *tb[], struct nlattr *data[])
49507 return -EINVAL;
49508 }
49509
49510-static struct rtnl_link_ops tun_link_ops __read_mostly = {
49511+static struct rtnl_link_ops tun_link_ops = {
49512 .kind = DRV_NAME,
49513 .priv_size = sizeof(struct tun_struct),
49514 .setup = tun_setup,
49515@@ -1830,7 +1830,7 @@ unlock:
49516 }
49517
49518 static long __tun_chr_ioctl(struct file *file, unsigned int cmd,
49519- unsigned long arg, int ifreq_len)
49520+ unsigned long arg, size_t ifreq_len)
49521 {
49522 struct tun_file *tfile = file->private_data;
49523 struct tun_struct *tun;
49524@@ -1844,6 +1844,9 @@ static long __tun_chr_ioctl(struct file *file, unsigned int cmd,
49525 int le;
49526 int ret;
49527
49528+ if (ifreq_len > sizeof ifr)
49529+ return -EFAULT;
49530+
49531 if (cmd == TUNSETIFF || cmd == TUNSETQUEUE || _IOC_TYPE(cmd) == 0x89) {
49532 if (copy_from_user(&ifr, argp, ifreq_len))
49533 return -EFAULT;
49534diff --git a/drivers/net/usb/hso.c b/drivers/net/usb/hso.c
49535index 778e915..58c4d95 100644
49536--- a/drivers/net/usb/hso.c
49537+++ b/drivers/net/usb/hso.c
49538@@ -70,7 +70,7 @@
49539 #include <asm/byteorder.h>
49540 #include <linux/serial_core.h>
49541 #include <linux/serial.h>
49542-
49543+#include <asm/local.h>
49544
49545 #define MOD_AUTHOR "Option Wireless"
49546 #define MOD_DESCRIPTION "USB High Speed Option driver"
49547@@ -1183,7 +1183,7 @@ static void put_rxbuf_data_and_resubmit_ctrl_urb(struct hso_serial *serial)
49548 struct urb *urb;
49549
49550 urb = serial->rx_urb[0];
49551- if (serial->port.count > 0) {
49552+ if (atomic_read(&serial->port.count) > 0) {
49553 count = put_rxbuf_data(urb, serial);
49554 if (count == -1)
49555 return;
49556@@ -1221,7 +1221,7 @@ static void hso_std_serial_read_bulk_callback(struct urb *urb)
49557 DUMP1(urb->transfer_buffer, urb->actual_length);
49558
49559 /* Anyone listening? */
49560- if (serial->port.count == 0)
49561+ if (atomic_read(&serial->port.count) == 0)
49562 return;
49563
49564 if (serial->parent->port_spec & HSO_INFO_CRC_BUG)
49565@@ -1282,8 +1282,7 @@ static int hso_serial_open(struct tty_struct *tty, struct file *filp)
49566 tty_port_tty_set(&serial->port, tty);
49567
49568 /* check for port already opened, if not set the termios */
49569- serial->port.count++;
49570- if (serial->port.count == 1) {
49571+ if (atomic_inc_return(&serial->port.count) == 1) {
49572 serial->rx_state = RX_IDLE;
49573 /* Force default termio settings */
49574 _hso_serial_set_termios(tty, NULL);
49575@@ -1293,7 +1292,7 @@ static int hso_serial_open(struct tty_struct *tty, struct file *filp)
49576 result = hso_start_serial_device(serial->parent, GFP_KERNEL);
49577 if (result) {
49578 hso_stop_serial_device(serial->parent);
49579- serial->port.count--;
49580+ atomic_dec(&serial->port.count);
49581 } else {
49582 kref_get(&serial->parent->ref);
49583 }
49584@@ -1331,10 +1330,10 @@ static void hso_serial_close(struct tty_struct *tty, struct file *filp)
49585
49586 /* reset the rts and dtr */
49587 /* do the actual close */
49588- serial->port.count--;
49589+ atomic_dec(&serial->port.count);
49590
49591- if (serial->port.count <= 0) {
49592- serial->port.count = 0;
49593+ if (atomic_read(&serial->port.count) <= 0) {
49594+ atomic_set(&serial->port.count, 0);
49595 tty_port_tty_set(&serial->port, NULL);
49596 if (!usb_gone)
49597 hso_stop_serial_device(serial->parent);
49598@@ -1417,7 +1416,7 @@ static void hso_serial_set_termios(struct tty_struct *tty, struct ktermios *old)
49599
49600 /* the actual setup */
49601 spin_lock_irqsave(&serial->serial_lock, flags);
49602- if (serial->port.count)
49603+ if (atomic_read(&serial->port.count))
49604 _hso_serial_set_termios(tty, old);
49605 else
49606 tty->termios = *old;
49607@@ -1886,7 +1885,7 @@ static void intr_callback(struct urb *urb)
49608 D1("Pending read interrupt on port %d\n", i);
49609 spin_lock(&serial->serial_lock);
49610 if (serial->rx_state == RX_IDLE &&
49611- serial->port.count > 0) {
49612+ atomic_read(&serial->port.count) > 0) {
49613 /* Setup and send a ctrl req read on
49614 * port i */
49615 if (!serial->rx_urb_filled[0]) {
49616@@ -3053,7 +3052,7 @@ static int hso_resume(struct usb_interface *iface)
49617 /* Start all serial ports */
49618 for (i = 0; i < HSO_SERIAL_TTY_MINORS; i++) {
49619 if (serial_table[i] && (serial_table[i]->interface == iface)) {
49620- if (dev2ser(serial_table[i])->port.count) {
49621+ if (atomic_read(&dev2ser(serial_table[i])->port.count)) {
49622 result =
49623 hso_start_serial_device(serial_table[i], GFP_NOIO);
49624 hso_kick_transmit(dev2ser(serial_table[i]));
49625diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
49626index 9f7c0ab..1577b4a 100644
49627--- a/drivers/net/usb/r8152.c
49628+++ b/drivers/net/usb/r8152.c
49629@@ -601,7 +601,7 @@ struct r8152 {
49630 void (*unload)(struct r8152 *);
49631 int (*eee_get)(struct r8152 *, struct ethtool_eee *);
49632 int (*eee_set)(struct r8152 *, struct ethtool_eee *);
49633- } rtl_ops;
49634+ } __no_const rtl_ops;
49635
49636 int intr_interval;
49637 u32 saved_wolopts;
49638diff --git a/drivers/net/usb/sierra_net.c b/drivers/net/usb/sierra_net.c
49639index a2515887..6d13233 100644
49640--- a/drivers/net/usb/sierra_net.c
49641+++ b/drivers/net/usb/sierra_net.c
49642@@ -51,7 +51,7 @@ static const char driver_name[] = "sierra_net";
49643 /* atomic counter partially included in MAC address to make sure 2 devices
49644 * do not end up with the same MAC - concept breaks in case of > 255 ifaces
49645 */
49646-static atomic_t iface_counter = ATOMIC_INIT(0);
49647+static atomic_unchecked_t iface_counter = ATOMIC_INIT(0);
49648
49649 /*
49650 * SYNC Timer Delay definition used to set the expiry time
49651@@ -697,7 +697,7 @@ static int sierra_net_bind(struct usbnet *dev, struct usb_interface *intf)
49652 dev->net->netdev_ops = &sierra_net_device_ops;
49653
49654 /* change MAC addr to include, ifacenum, and to be unique */
49655- dev->net->dev_addr[ETH_ALEN-2] = atomic_inc_return(&iface_counter);
49656+ dev->net->dev_addr[ETH_ALEN-2] = atomic_inc_return_unchecked(&iface_counter);
49657 dev->net->dev_addr[ETH_ALEN-1] = ifacenum;
49658
49659 /* we will have to manufacture ethernet headers, prepare template */
49660diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c
49661index 777757a..395a767 100644
49662--- a/drivers/net/usb/usbnet.c
49663+++ b/drivers/net/usb/usbnet.c
49664@@ -1285,7 +1285,7 @@ netdev_tx_t usbnet_start_xmit (struct sk_buff *skb,
49665 struct net_device *net)
49666 {
49667 struct usbnet *dev = netdev_priv(net);
49668- int length;
49669+ unsigned int length;
49670 struct urb *urb = NULL;
49671 struct skb_data *entry;
49672 struct driver_info *info = dev->driver_info;
49673@@ -1413,7 +1413,7 @@ not_drop:
49674 }
49675 } else
49676 netif_dbg(dev, tx_queued, dev->net,
49677- "> tx, len %d, type 0x%x\n", length, skb->protocol);
49678+ "> tx, len %u, type 0x%x\n", length, skb->protocol);
49679 #ifdef CONFIG_PM
49680 deferred:
49681 #endif
49682diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
49683index 59b0e97..a6ed579 100644
49684--- a/drivers/net/virtio_net.c
49685+++ b/drivers/net/virtio_net.c
49686@@ -48,7 +48,7 @@ module_param(gso, bool, 0444);
49687 #define RECEIVE_AVG_WEIGHT 64
49688
49689 /* Minimum alignment for mergeable packet buffers. */
49690-#define MERGEABLE_BUFFER_ALIGN max(L1_CACHE_BYTES, 256)
49691+#define MERGEABLE_BUFFER_ALIGN max(L1_CACHE_BYTES, 256UL)
49692
49693 #define VIRTNET_DRIVER_VERSION "1.0.0"
49694
49695diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
49696index fceb637..37c70fd 100644
49697--- a/drivers/net/vxlan.c
49698+++ b/drivers/net/vxlan.c
49699@@ -2935,7 +2935,7 @@ static struct net *vxlan_get_link_net(const struct net_device *dev)
49700 return vxlan->net;
49701 }
49702
49703-static struct rtnl_link_ops vxlan_link_ops __read_mostly = {
49704+static struct rtnl_link_ops vxlan_link_ops = {
49705 .kind = "vxlan",
49706 .maxtype = IFLA_VXLAN_MAX,
49707 .policy = vxlan_policy,
49708@@ -2983,7 +2983,7 @@ static int vxlan_lowerdev_event(struct notifier_block *unused,
49709 return NOTIFY_DONE;
49710 }
49711
49712-static struct notifier_block vxlan_notifier_block __read_mostly = {
49713+static struct notifier_block vxlan_notifier_block = {
49714 .notifier_call = vxlan_lowerdev_event,
49715 };
49716
49717diff --git a/drivers/net/wan/lmc/lmc_media.c b/drivers/net/wan/lmc/lmc_media.c
49718index 5920c99..ff2e4a5 100644
49719--- a/drivers/net/wan/lmc/lmc_media.c
49720+++ b/drivers/net/wan/lmc/lmc_media.c
49721@@ -95,62 +95,63 @@ static inline void write_av9110_bit (lmc_softc_t *, int);
49722 static void write_av9110(lmc_softc_t *, u32, u32, u32, u32, u32);
49723
49724 lmc_media_t lmc_ds3_media = {
49725- lmc_ds3_init, /* special media init stuff */
49726- lmc_ds3_default, /* reset to default state */
49727- lmc_ds3_set_status, /* reset status to state provided */
49728- lmc_dummy_set_1, /* set clock source */
49729- lmc_dummy_set2_1, /* set line speed */
49730- lmc_ds3_set_100ft, /* set cable length */
49731- lmc_ds3_set_scram, /* set scrambler */
49732- lmc_ds3_get_link_status, /* get link status */
49733- lmc_dummy_set_1, /* set link status */
49734- lmc_ds3_set_crc_length, /* set CRC length */
49735- lmc_dummy_set_1, /* set T1 or E1 circuit type */
49736- lmc_ds3_watchdog
49737+ .init = lmc_ds3_init, /* special media init stuff */
49738+ .defaults = lmc_ds3_default, /* reset to default state */
49739+ .set_status = lmc_ds3_set_status, /* reset status to state provided */
49740+ .set_clock_source = lmc_dummy_set_1, /* set clock source */
49741+ .set_speed = lmc_dummy_set2_1, /* set line speed */
49742+ .set_cable_length = lmc_ds3_set_100ft, /* set cable length */
49743+ .set_scrambler = lmc_ds3_set_scram, /* set scrambler */
49744+ .get_link_status = lmc_ds3_get_link_status, /* get link status */
49745+ .set_link_status = lmc_dummy_set_1, /* set link status */
49746+ .set_crc_length = lmc_ds3_set_crc_length, /* set CRC length */
49747+ .set_circuit_type = lmc_dummy_set_1, /* set T1 or E1 circuit type */
49748+ .watchdog = lmc_ds3_watchdog
49749 };
49750
49751 lmc_media_t lmc_hssi_media = {
49752- lmc_hssi_init, /* special media init stuff */
49753- lmc_hssi_default, /* reset to default state */
49754- lmc_hssi_set_status, /* reset status to state provided */
49755- lmc_hssi_set_clock, /* set clock source */
49756- lmc_dummy_set2_1, /* set line speed */
49757- lmc_dummy_set_1, /* set cable length */
49758- lmc_dummy_set_1, /* set scrambler */
49759- lmc_hssi_get_link_status, /* get link status */
49760- lmc_hssi_set_link_status, /* set link status */
49761- lmc_hssi_set_crc_length, /* set CRC length */
49762- lmc_dummy_set_1, /* set T1 or E1 circuit type */
49763- lmc_hssi_watchdog
49764+ .init = lmc_hssi_init, /* special media init stuff */
49765+ .defaults = lmc_hssi_default, /* reset to default state */
49766+ .set_status = lmc_hssi_set_status, /* reset status to state provided */
49767+ .set_clock_source = lmc_hssi_set_clock, /* set clock source */
49768+ .set_speed = lmc_dummy_set2_1, /* set line speed */
49769+ .set_cable_length = lmc_dummy_set_1, /* set cable length */
49770+ .set_scrambler = lmc_dummy_set_1, /* set scrambler */
49771+ .get_link_status = lmc_hssi_get_link_status, /* get link status */
49772+ .set_link_status = lmc_hssi_set_link_status, /* set link status */
49773+ .set_crc_length = lmc_hssi_set_crc_length, /* set CRC length */
49774+ .set_circuit_type = lmc_dummy_set_1, /* set T1 or E1 circuit type */
49775+ .watchdog = lmc_hssi_watchdog
49776 };
49777
49778-lmc_media_t lmc_ssi_media = { lmc_ssi_init, /* special media init stuff */
49779- lmc_ssi_default, /* reset to default state */
49780- lmc_ssi_set_status, /* reset status to state provided */
49781- lmc_ssi_set_clock, /* set clock source */
49782- lmc_ssi_set_speed, /* set line speed */
49783- lmc_dummy_set_1, /* set cable length */
49784- lmc_dummy_set_1, /* set scrambler */
49785- lmc_ssi_get_link_status, /* get link status */
49786- lmc_ssi_set_link_status, /* set link status */
49787- lmc_ssi_set_crc_length, /* set CRC length */
49788- lmc_dummy_set_1, /* set T1 or E1 circuit type */
49789- lmc_ssi_watchdog
49790+lmc_media_t lmc_ssi_media = {
49791+ .init = lmc_ssi_init, /* special media init stuff */
49792+ .defaults = lmc_ssi_default, /* reset to default state */
49793+ .set_status = lmc_ssi_set_status, /* reset status to state provided */
49794+ .set_clock_source = lmc_ssi_set_clock, /* set clock source */
49795+ .set_speed = lmc_ssi_set_speed, /* set line speed */
49796+ .set_cable_length = lmc_dummy_set_1, /* set cable length */
49797+ .set_scrambler = lmc_dummy_set_1, /* set scrambler */
49798+ .get_link_status = lmc_ssi_get_link_status, /* get link status */
49799+ .set_link_status = lmc_ssi_set_link_status, /* set link status */
49800+ .set_crc_length = lmc_ssi_set_crc_length, /* set CRC length */
49801+ .set_circuit_type = lmc_dummy_set_1, /* set T1 or E1 circuit type */
49802+ .watchdog = lmc_ssi_watchdog
49803 };
49804
49805 lmc_media_t lmc_t1_media = {
49806- lmc_t1_init, /* special media init stuff */
49807- lmc_t1_default, /* reset to default state */
49808- lmc_t1_set_status, /* reset status to state provided */
49809- lmc_t1_set_clock, /* set clock source */
49810- lmc_dummy_set2_1, /* set line speed */
49811- lmc_dummy_set_1, /* set cable length */
49812- lmc_dummy_set_1, /* set scrambler */
49813- lmc_t1_get_link_status, /* get link status */
49814- lmc_dummy_set_1, /* set link status */
49815- lmc_t1_set_crc_length, /* set CRC length */
49816- lmc_t1_set_circuit_type, /* set T1 or E1 circuit type */
49817- lmc_t1_watchdog
49818+ .init = lmc_t1_init, /* special media init stuff */
49819+ .defaults = lmc_t1_default, /* reset to default state */
49820+ .set_status = lmc_t1_set_status, /* reset status to state provided */
49821+ .set_clock_source = lmc_t1_set_clock, /* set clock source */
49822+ .set_speed = lmc_dummy_set2_1, /* set line speed */
49823+ .set_cable_length = lmc_dummy_set_1, /* set cable length */
49824+ .set_scrambler = lmc_dummy_set_1, /* set scrambler */
49825+ .get_link_status = lmc_t1_get_link_status, /* get link status */
49826+ .set_link_status = lmc_dummy_set_1, /* set link status */
49827+ .set_crc_length = lmc_t1_set_crc_length, /* set CRC length */
49828+ .set_circuit_type = lmc_t1_set_circuit_type, /* set T1 or E1 circuit type */
49829+ .watchdog = lmc_t1_watchdog
49830 };
49831
49832 static void
49833diff --git a/drivers/net/wan/z85230.c b/drivers/net/wan/z85230.c
49834index feacc3b..5bac0de 100644
49835--- a/drivers/net/wan/z85230.c
49836+++ b/drivers/net/wan/z85230.c
49837@@ -485,9 +485,9 @@ static void z8530_status(struct z8530_channel *chan)
49838
49839 struct z8530_irqhandler z8530_sync =
49840 {
49841- z8530_rx,
49842- z8530_tx,
49843- z8530_status
49844+ .rx = z8530_rx,
49845+ .tx = z8530_tx,
49846+ .status = z8530_status
49847 };
49848
49849 EXPORT_SYMBOL(z8530_sync);
49850@@ -605,15 +605,15 @@ static void z8530_dma_status(struct z8530_channel *chan)
49851 }
49852
49853 static struct z8530_irqhandler z8530_dma_sync = {
49854- z8530_dma_rx,
49855- z8530_dma_tx,
49856- z8530_dma_status
49857+ .rx = z8530_dma_rx,
49858+ .tx = z8530_dma_tx,
49859+ .status = z8530_dma_status
49860 };
49861
49862 static struct z8530_irqhandler z8530_txdma_sync = {
49863- z8530_rx,
49864- z8530_dma_tx,
49865- z8530_dma_status
49866+ .rx = z8530_rx,
49867+ .tx = z8530_dma_tx,
49868+ .status = z8530_dma_status
49869 };
49870
49871 /**
49872@@ -680,9 +680,9 @@ static void z8530_status_clear(struct z8530_channel *chan)
49873
49874 struct z8530_irqhandler z8530_nop=
49875 {
49876- z8530_rx_clear,
49877- z8530_tx_clear,
49878- z8530_status_clear
49879+ .rx = z8530_rx_clear,
49880+ .tx = z8530_tx_clear,
49881+ .status = z8530_status_clear
49882 };
49883
49884
49885diff --git a/drivers/net/wimax/i2400m/rx.c b/drivers/net/wimax/i2400m/rx.c
49886index 0b60295..b8bfa5b 100644
49887--- a/drivers/net/wimax/i2400m/rx.c
49888+++ b/drivers/net/wimax/i2400m/rx.c
49889@@ -1359,7 +1359,7 @@ int i2400m_rx_setup(struct i2400m *i2400m)
49890 if (i2400m->rx_roq == NULL)
49891 goto error_roq_alloc;
49892
49893- rd = kcalloc(I2400M_RO_CIN + 1, sizeof(*i2400m->rx_roq[0].log),
49894+ rd = kcalloc(sizeof(*i2400m->rx_roq[0].log), I2400M_RO_CIN + 1,
49895 GFP_KERNEL);
49896 if (rd == NULL) {
49897 result = -ENOMEM;
49898diff --git a/drivers/net/wireless/airo.c b/drivers/net/wireless/airo.c
49899index e71a2ce..2268d61 100644
49900--- a/drivers/net/wireless/airo.c
49901+++ b/drivers/net/wireless/airo.c
49902@@ -7846,7 +7846,7 @@ static int writerids(struct net_device *dev, aironet_ioctl *comp) {
49903 struct airo_info *ai = dev->ml_priv;
49904 int ridcode;
49905 int enabled;
49906- static int (* writer)(struct airo_info *, u16 rid, const void *, int, int);
49907+ int (* writer)(struct airo_info *, u16 rid, const void *, int, int);
49908 unsigned char *iobuf;
49909
49910 /* Only super-user can write RIDs */
49911diff --git a/drivers/net/wireless/at76c50x-usb.c b/drivers/net/wireless/at76c50x-usb.c
49912index da92bfa..5a9001a 100644
49913--- a/drivers/net/wireless/at76c50x-usb.c
49914+++ b/drivers/net/wireless/at76c50x-usb.c
49915@@ -353,7 +353,7 @@ static int at76_dfu_get_state(struct usb_device *udev, u8 *state)
49916 }
49917
49918 /* Convert timeout from the DFU status to jiffies */
49919-static inline unsigned long at76_get_timeout(struct dfu_status *s)
49920+static inline unsigned long __intentional_overflow(-1) at76_get_timeout(struct dfu_status *s)
49921 {
49922 return msecs_to_jiffies((s->poll_timeout[2] << 16)
49923 | (s->poll_timeout[1] << 8)
49924diff --git a/drivers/net/wireless/ath/ath10k/htc.c b/drivers/net/wireless/ath/ath10k/htc.c
49925index 2fd9e18..3f55bdd 100644
49926--- a/drivers/net/wireless/ath/ath10k/htc.c
49927+++ b/drivers/net/wireless/ath/ath10k/htc.c
49928@@ -849,7 +849,10 @@ int ath10k_htc_start(struct ath10k_htc *htc)
49929 /* registered target arrival callback from the HIF layer */
49930 int ath10k_htc_init(struct ath10k *ar)
49931 {
49932- struct ath10k_hif_cb htc_callbacks;
49933+ static struct ath10k_hif_cb htc_callbacks = {
49934+ .rx_completion = ath10k_htc_rx_completion_handler,
49935+ .tx_completion = ath10k_htc_tx_completion_handler,
49936+ };
49937 struct ath10k_htc_ep *ep = NULL;
49938 struct ath10k_htc *htc = &ar->htc;
49939
49940@@ -858,8 +861,6 @@ int ath10k_htc_init(struct ath10k *ar)
49941 ath10k_htc_reset_endpoint_states(htc);
49942
49943 /* setup HIF layer callbacks */
49944- htc_callbacks.rx_completion = ath10k_htc_rx_completion_handler;
49945- htc_callbacks.tx_completion = ath10k_htc_tx_completion_handler;
49946 htc->ar = ar;
49947
49948 /* Get HIF default pipe for HTC message exchange */
49949diff --git a/drivers/net/wireless/ath/ath10k/htc.h b/drivers/net/wireless/ath/ath10k/htc.h
49950index 527179c..a890150 100644
49951--- a/drivers/net/wireless/ath/ath10k/htc.h
49952+++ b/drivers/net/wireless/ath/ath10k/htc.h
49953@@ -270,13 +270,13 @@ enum ath10k_htc_ep_id {
49954
49955 struct ath10k_htc_ops {
49956 void (*target_send_suspend_complete)(struct ath10k *ar);
49957-};
49958+} __no_const;
49959
49960 struct ath10k_htc_ep_ops {
49961 void (*ep_tx_complete)(struct ath10k *, struct sk_buff *);
49962 void (*ep_rx_complete)(struct ath10k *, struct sk_buff *);
49963 void (*ep_tx_credits)(struct ath10k *);
49964-};
49965+} __no_const;
49966
49967 /* service connection information */
49968 struct ath10k_htc_svc_conn_req {
49969diff --git a/drivers/net/wireless/ath/ath9k/ar9002_mac.c b/drivers/net/wireless/ath/ath9k/ar9002_mac.c
49970index f816909..e56cd8b 100644
49971--- a/drivers/net/wireless/ath/ath9k/ar9002_mac.c
49972+++ b/drivers/net/wireless/ath/ath9k/ar9002_mac.c
49973@@ -220,8 +220,8 @@ ar9002_set_txdesc(struct ath_hw *ah, void *ds, struct ath_tx_info *i)
49974 ads->ds_txstatus6 = ads->ds_txstatus7 = 0;
49975 ads->ds_txstatus8 = ads->ds_txstatus9 = 0;
49976
49977- ACCESS_ONCE(ads->ds_link) = i->link;
49978- ACCESS_ONCE(ads->ds_data) = i->buf_addr[0];
49979+ ACCESS_ONCE_RW(ads->ds_link) = i->link;
49980+ ACCESS_ONCE_RW(ads->ds_data) = i->buf_addr[0];
49981
49982 ctl1 = i->buf_len[0] | (i->is_last ? 0 : AR_TxMore);
49983 ctl6 = SM(i->keytype, AR_EncrType);
49984@@ -235,26 +235,26 @@ ar9002_set_txdesc(struct ath_hw *ah, void *ds, struct ath_tx_info *i)
49985
49986 if ((i->is_first || i->is_last) &&
49987 i->aggr != AGGR_BUF_MIDDLE && i->aggr != AGGR_BUF_LAST) {
49988- ACCESS_ONCE(ads->ds_ctl2) = set11nTries(i->rates, 0)
49989+ ACCESS_ONCE_RW(ads->ds_ctl2) = set11nTries(i->rates, 0)
49990 | set11nTries(i->rates, 1)
49991 | set11nTries(i->rates, 2)
49992 | set11nTries(i->rates, 3)
49993 | (i->dur_update ? AR_DurUpdateEna : 0)
49994 | SM(0, AR_BurstDur);
49995
49996- ACCESS_ONCE(ads->ds_ctl3) = set11nRate(i->rates, 0)
49997+ ACCESS_ONCE_RW(ads->ds_ctl3) = set11nRate(i->rates, 0)
49998 | set11nRate(i->rates, 1)
49999 | set11nRate(i->rates, 2)
50000 | set11nRate(i->rates, 3);
50001 } else {
50002- ACCESS_ONCE(ads->ds_ctl2) = 0;
50003- ACCESS_ONCE(ads->ds_ctl3) = 0;
50004+ ACCESS_ONCE_RW(ads->ds_ctl2) = 0;
50005+ ACCESS_ONCE_RW(ads->ds_ctl3) = 0;
50006 }
50007
50008 if (!i->is_first) {
50009- ACCESS_ONCE(ads->ds_ctl0) = 0;
50010- ACCESS_ONCE(ads->ds_ctl1) = ctl1;
50011- ACCESS_ONCE(ads->ds_ctl6) = ctl6;
50012+ ACCESS_ONCE_RW(ads->ds_ctl0) = 0;
50013+ ACCESS_ONCE_RW(ads->ds_ctl1) = ctl1;
50014+ ACCESS_ONCE_RW(ads->ds_ctl6) = ctl6;
50015 return;
50016 }
50017
50018@@ -279,7 +279,7 @@ ar9002_set_txdesc(struct ath_hw *ah, void *ds, struct ath_tx_info *i)
50019 break;
50020 }
50021
50022- ACCESS_ONCE(ads->ds_ctl0) = (i->pkt_len & AR_FrameLen)
50023+ ACCESS_ONCE_RW(ads->ds_ctl0) = (i->pkt_len & AR_FrameLen)
50024 | (i->flags & ATH9K_TXDESC_VMF ? AR_VirtMoreFrag : 0)
50025 | SM(i->txpower[0], AR_XmitPower0)
50026 | (i->flags & ATH9K_TXDESC_VEOL ? AR_VEOL : 0)
50027@@ -289,27 +289,27 @@ ar9002_set_txdesc(struct ath_hw *ah, void *ds, struct ath_tx_info *i)
50028 | (i->flags & ATH9K_TXDESC_RTSENA ? AR_RTSEnable :
50029 (i->flags & ATH9K_TXDESC_CTSENA ? AR_CTSEnable : 0));
50030
50031- ACCESS_ONCE(ads->ds_ctl1) = ctl1;
50032- ACCESS_ONCE(ads->ds_ctl6) = ctl6;
50033+ ACCESS_ONCE_RW(ads->ds_ctl1) = ctl1;
50034+ ACCESS_ONCE_RW(ads->ds_ctl6) = ctl6;
50035
50036 if (i->aggr == AGGR_BUF_MIDDLE || i->aggr == AGGR_BUF_LAST)
50037 return;
50038
50039- ACCESS_ONCE(ads->ds_ctl4) = set11nPktDurRTSCTS(i->rates, 0)
50040+ ACCESS_ONCE_RW(ads->ds_ctl4) = set11nPktDurRTSCTS(i->rates, 0)
50041 | set11nPktDurRTSCTS(i->rates, 1);
50042
50043- ACCESS_ONCE(ads->ds_ctl5) = set11nPktDurRTSCTS(i->rates, 2)
50044+ ACCESS_ONCE_RW(ads->ds_ctl5) = set11nPktDurRTSCTS(i->rates, 2)
50045 | set11nPktDurRTSCTS(i->rates, 3);
50046
50047- ACCESS_ONCE(ads->ds_ctl7) = set11nRateFlags(i->rates, 0)
50048+ ACCESS_ONCE_RW(ads->ds_ctl7) = set11nRateFlags(i->rates, 0)
50049 | set11nRateFlags(i->rates, 1)
50050 | set11nRateFlags(i->rates, 2)
50051 | set11nRateFlags(i->rates, 3)
50052 | SM(i->rtscts_rate, AR_RTSCTSRate);
50053
50054- ACCESS_ONCE(ads->ds_ctl9) = SM(i->txpower[1], AR_XmitPower1);
50055- ACCESS_ONCE(ads->ds_ctl10) = SM(i->txpower[2], AR_XmitPower2);
50056- ACCESS_ONCE(ads->ds_ctl11) = SM(i->txpower[3], AR_XmitPower3);
50057+ ACCESS_ONCE_RW(ads->ds_ctl9) = SM(i->txpower[1], AR_XmitPower1);
50058+ ACCESS_ONCE_RW(ads->ds_ctl10) = SM(i->txpower[2], AR_XmitPower2);
50059+ ACCESS_ONCE_RW(ads->ds_ctl11) = SM(i->txpower[3], AR_XmitPower3);
50060 }
50061
50062 static int ar9002_hw_proc_txdesc(struct ath_hw *ah, void *ds,
50063diff --git a/drivers/net/wireless/ath/ath9k/ar9003_mac.c b/drivers/net/wireless/ath/ath9k/ar9003_mac.c
50064index da84b70..83e4978 100644
50065--- a/drivers/net/wireless/ath/ath9k/ar9003_mac.c
50066+++ b/drivers/net/wireless/ath/ath9k/ar9003_mac.c
50067@@ -39,47 +39,47 @@ ar9003_set_txdesc(struct ath_hw *ah, void *ds, struct ath_tx_info *i)
50068 (i->qcu << AR_TxQcuNum_S) | desc_len;
50069
50070 checksum += val;
50071- ACCESS_ONCE(ads->info) = val;
50072+ ACCESS_ONCE_RW(ads->info) = val;
50073
50074 checksum += i->link;
50075- ACCESS_ONCE(ads->link) = i->link;
50076+ ACCESS_ONCE_RW(ads->link) = i->link;
50077
50078 checksum += i->buf_addr[0];
50079- ACCESS_ONCE(ads->data0) = i->buf_addr[0];
50080+ ACCESS_ONCE_RW(ads->data0) = i->buf_addr[0];
50081 checksum += i->buf_addr[1];
50082- ACCESS_ONCE(ads->data1) = i->buf_addr[1];
50083+ ACCESS_ONCE_RW(ads->data1) = i->buf_addr[1];
50084 checksum += i->buf_addr[2];
50085- ACCESS_ONCE(ads->data2) = i->buf_addr[2];
50086+ ACCESS_ONCE_RW(ads->data2) = i->buf_addr[2];
50087 checksum += i->buf_addr[3];
50088- ACCESS_ONCE(ads->data3) = i->buf_addr[3];
50089+ ACCESS_ONCE_RW(ads->data3) = i->buf_addr[3];
50090
50091 checksum += (val = (i->buf_len[0] << AR_BufLen_S) & AR_BufLen);
50092- ACCESS_ONCE(ads->ctl3) = val;
50093+ ACCESS_ONCE_RW(ads->ctl3) = val;
50094 checksum += (val = (i->buf_len[1] << AR_BufLen_S) & AR_BufLen);
50095- ACCESS_ONCE(ads->ctl5) = val;
50096+ ACCESS_ONCE_RW(ads->ctl5) = val;
50097 checksum += (val = (i->buf_len[2] << AR_BufLen_S) & AR_BufLen);
50098- ACCESS_ONCE(ads->ctl7) = val;
50099+ ACCESS_ONCE_RW(ads->ctl7) = val;
50100 checksum += (val = (i->buf_len[3] << AR_BufLen_S) & AR_BufLen);
50101- ACCESS_ONCE(ads->ctl9) = val;
50102+ ACCESS_ONCE_RW(ads->ctl9) = val;
50103
50104 checksum = (u16) (((checksum & 0xffff) + (checksum >> 16)) & 0xffff);
50105- ACCESS_ONCE(ads->ctl10) = checksum;
50106+ ACCESS_ONCE_RW(ads->ctl10) = checksum;
50107
50108 if (i->is_first || i->is_last) {
50109- ACCESS_ONCE(ads->ctl13) = set11nTries(i->rates, 0)
50110+ ACCESS_ONCE_RW(ads->ctl13) = set11nTries(i->rates, 0)
50111 | set11nTries(i->rates, 1)
50112 | set11nTries(i->rates, 2)
50113 | set11nTries(i->rates, 3)
50114 | (i->dur_update ? AR_DurUpdateEna : 0)
50115 | SM(0, AR_BurstDur);
50116
50117- ACCESS_ONCE(ads->ctl14) = set11nRate(i->rates, 0)
50118+ ACCESS_ONCE_RW(ads->ctl14) = set11nRate(i->rates, 0)
50119 | set11nRate(i->rates, 1)
50120 | set11nRate(i->rates, 2)
50121 | set11nRate(i->rates, 3);
50122 } else {
50123- ACCESS_ONCE(ads->ctl13) = 0;
50124- ACCESS_ONCE(ads->ctl14) = 0;
50125+ ACCESS_ONCE_RW(ads->ctl13) = 0;
50126+ ACCESS_ONCE_RW(ads->ctl14) = 0;
50127 }
50128
50129 ads->ctl20 = 0;
50130@@ -89,17 +89,17 @@ ar9003_set_txdesc(struct ath_hw *ah, void *ds, struct ath_tx_info *i)
50131
50132 ctl17 = SM(i->keytype, AR_EncrType);
50133 if (!i->is_first) {
50134- ACCESS_ONCE(ads->ctl11) = 0;
50135- ACCESS_ONCE(ads->ctl12) = i->is_last ? 0 : AR_TxMore;
50136- ACCESS_ONCE(ads->ctl15) = 0;
50137- ACCESS_ONCE(ads->ctl16) = 0;
50138- ACCESS_ONCE(ads->ctl17) = ctl17;
50139- ACCESS_ONCE(ads->ctl18) = 0;
50140- ACCESS_ONCE(ads->ctl19) = 0;
50141+ ACCESS_ONCE_RW(ads->ctl11) = 0;
50142+ ACCESS_ONCE_RW(ads->ctl12) = i->is_last ? 0 : AR_TxMore;
50143+ ACCESS_ONCE_RW(ads->ctl15) = 0;
50144+ ACCESS_ONCE_RW(ads->ctl16) = 0;
50145+ ACCESS_ONCE_RW(ads->ctl17) = ctl17;
50146+ ACCESS_ONCE_RW(ads->ctl18) = 0;
50147+ ACCESS_ONCE_RW(ads->ctl19) = 0;
50148 return;
50149 }
50150
50151- ACCESS_ONCE(ads->ctl11) = (i->pkt_len & AR_FrameLen)
50152+ ACCESS_ONCE_RW(ads->ctl11) = (i->pkt_len & AR_FrameLen)
50153 | (i->flags & ATH9K_TXDESC_VMF ? AR_VirtMoreFrag : 0)
50154 | SM(i->txpower[0], AR_XmitPower0)
50155 | (i->flags & ATH9K_TXDESC_VEOL ? AR_VEOL : 0)
50156@@ -135,26 +135,26 @@ ar9003_set_txdesc(struct ath_hw *ah, void *ds, struct ath_tx_info *i)
50157 val = (i->flags & ATH9K_TXDESC_PAPRD) >> ATH9K_TXDESC_PAPRD_S;
50158 ctl12 |= SM(val, AR_PAPRDChainMask);
50159
50160- ACCESS_ONCE(ads->ctl12) = ctl12;
50161- ACCESS_ONCE(ads->ctl17) = ctl17;
50162+ ACCESS_ONCE_RW(ads->ctl12) = ctl12;
50163+ ACCESS_ONCE_RW(ads->ctl17) = ctl17;
50164
50165- ACCESS_ONCE(ads->ctl15) = set11nPktDurRTSCTS(i->rates, 0)
50166+ ACCESS_ONCE_RW(ads->ctl15) = set11nPktDurRTSCTS(i->rates, 0)
50167 | set11nPktDurRTSCTS(i->rates, 1);
50168
50169- ACCESS_ONCE(ads->ctl16) = set11nPktDurRTSCTS(i->rates, 2)
50170+ ACCESS_ONCE_RW(ads->ctl16) = set11nPktDurRTSCTS(i->rates, 2)
50171 | set11nPktDurRTSCTS(i->rates, 3);
50172
50173- ACCESS_ONCE(ads->ctl18) = set11nRateFlags(i->rates, 0)
50174+ ACCESS_ONCE_RW(ads->ctl18) = set11nRateFlags(i->rates, 0)
50175 | set11nRateFlags(i->rates, 1)
50176 | set11nRateFlags(i->rates, 2)
50177 | set11nRateFlags(i->rates, 3)
50178 | SM(i->rtscts_rate, AR_RTSCTSRate);
50179
50180- ACCESS_ONCE(ads->ctl19) = AR_Not_Sounding;
50181+ ACCESS_ONCE_RW(ads->ctl19) = AR_Not_Sounding;
50182
50183- ACCESS_ONCE(ads->ctl20) = SM(i->txpower[1], AR_XmitPower1);
50184- ACCESS_ONCE(ads->ctl21) = SM(i->txpower[2], AR_XmitPower2);
50185- ACCESS_ONCE(ads->ctl22) = SM(i->txpower[3], AR_XmitPower3);
50186+ ACCESS_ONCE_RW(ads->ctl20) = SM(i->txpower[1], AR_XmitPower1);
50187+ ACCESS_ONCE_RW(ads->ctl21) = SM(i->txpower[2], AR_XmitPower2);
50188+ ACCESS_ONCE_RW(ads->ctl22) = SM(i->txpower[3], AR_XmitPower3);
50189 }
50190
50191 static u16 ar9003_calc_ptr_chksum(struct ar9003_txc *ads)
50192diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h
50193index e82e570..8c3cf90 100644
50194--- a/drivers/net/wireless/ath/ath9k/hw.h
50195+++ b/drivers/net/wireless/ath/ath9k/hw.h
50196@@ -646,7 +646,7 @@ struct ath_hw_private_ops {
50197
50198 /* ANI */
50199 void (*ani_cache_ini_regs)(struct ath_hw *ah);
50200-};
50201+} __no_const;
50202
50203 /**
50204 * struct ath_spec_scan - parameters for Atheros spectral scan
50205@@ -722,7 +722,7 @@ struct ath_hw_ops {
50206 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
50207 void (*set_bt_ant_diversity)(struct ath_hw *hw, bool enable);
50208 #endif
50209-};
50210+} __no_const;
50211
50212 struct ath_nf_limits {
50213 s16 max;
50214diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
50215index 9ede991..a8f08fb 100644
50216--- a/drivers/net/wireless/ath/ath9k/main.c
50217+++ b/drivers/net/wireless/ath/ath9k/main.c
50218@@ -2537,16 +2537,18 @@ void ath9k_fill_chanctx_ops(void)
50219 if (!ath9k_is_chanctx_enabled())
50220 return;
50221
50222- ath9k_ops.hw_scan = ath9k_hw_scan;
50223- ath9k_ops.cancel_hw_scan = ath9k_cancel_hw_scan;
50224- ath9k_ops.remain_on_channel = ath9k_remain_on_channel;
50225- ath9k_ops.cancel_remain_on_channel = ath9k_cancel_remain_on_channel;
50226- ath9k_ops.add_chanctx = ath9k_add_chanctx;
50227- ath9k_ops.remove_chanctx = ath9k_remove_chanctx;
50228- ath9k_ops.change_chanctx = ath9k_change_chanctx;
50229- ath9k_ops.assign_vif_chanctx = ath9k_assign_vif_chanctx;
50230- ath9k_ops.unassign_vif_chanctx = ath9k_unassign_vif_chanctx;
50231- ath9k_ops.mgd_prepare_tx = ath9k_mgd_prepare_tx;
50232+ pax_open_kernel();
50233+ *(void **)&ath9k_ops.hw_scan = ath9k_hw_scan;
50234+ *(void **)&ath9k_ops.cancel_hw_scan = ath9k_cancel_hw_scan;
50235+ *(void **)&ath9k_ops.remain_on_channel = ath9k_remain_on_channel;
50236+ *(void **)&ath9k_ops.cancel_remain_on_channel = ath9k_cancel_remain_on_channel;
50237+ *(void **)&ath9k_ops.add_chanctx = ath9k_add_chanctx;
50238+ *(void **)&ath9k_ops.remove_chanctx = ath9k_remove_chanctx;
50239+ *(void **)&ath9k_ops.change_chanctx = ath9k_change_chanctx;
50240+ *(void **)&ath9k_ops.assign_vif_chanctx = ath9k_assign_vif_chanctx;
50241+ *(void **)&ath9k_ops.unassign_vif_chanctx = ath9k_unassign_vif_chanctx;
50242+ *(void **)&ath9k_ops.mgd_prepare_tx = ath9k_mgd_prepare_tx;
50243+ pax_close_kernel();
50244 }
50245
50246 #endif
50247diff --git a/drivers/net/wireless/b43/phy_lp.c b/drivers/net/wireless/b43/phy_lp.c
50248index 058a9f2..d5cb1ba 100644
50249--- a/drivers/net/wireless/b43/phy_lp.c
50250+++ b/drivers/net/wireless/b43/phy_lp.c
50251@@ -2502,7 +2502,7 @@ static int lpphy_b2063_tune(struct b43_wldev *dev,
50252 {
50253 struct ssb_bus *bus = dev->dev->sdev->bus;
50254
50255- static const struct b206x_channel *chandata = NULL;
50256+ const struct b206x_channel *chandata = NULL;
50257 u32 crystal_freq = bus->chipco.pmu.crystalfreq * 1000;
50258 u32 freqref, vco_freq, val1, val2, val3, timeout, timeoutref, count;
50259 u16 old_comm15, scale;
50260diff --git a/drivers/net/wireless/iwlegacy/3945-mac.c b/drivers/net/wireless/iwlegacy/3945-mac.c
50261index e566580..2c218ca 100644
50262--- a/drivers/net/wireless/iwlegacy/3945-mac.c
50263+++ b/drivers/net/wireless/iwlegacy/3945-mac.c
50264@@ -3631,7 +3631,9 @@ il3945_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
50265 */
50266 if (il3945_mod_params.disable_hw_scan) {
50267 D_INFO("Disabling hw_scan\n");
50268- il3945_mac_ops.hw_scan = NULL;
50269+ pax_open_kernel();
50270+ *(void **)&il3945_mac_ops.hw_scan = NULL;
50271+ pax_close_kernel();
50272 }
50273
50274 D_INFO("*** LOAD DRIVER ***\n");
50275diff --git a/drivers/net/wireless/iwlwifi/dvm/debugfs.c b/drivers/net/wireless/iwlwifi/dvm/debugfs.c
50276index 0ffb6ff..c0b7f0e 100644
50277--- a/drivers/net/wireless/iwlwifi/dvm/debugfs.c
50278+++ b/drivers/net/wireless/iwlwifi/dvm/debugfs.c
50279@@ -188,7 +188,7 @@ static ssize_t iwl_dbgfs_sram_write(struct file *file,
50280 {
50281 struct iwl_priv *priv = file->private_data;
50282 char buf[64];
50283- int buf_size;
50284+ size_t buf_size;
50285 u32 offset, len;
50286
50287 memset(buf, 0, sizeof(buf));
50288@@ -458,7 +458,7 @@ static ssize_t iwl_dbgfs_rx_handlers_write(struct file *file,
50289 struct iwl_priv *priv = file->private_data;
50290
50291 char buf[8];
50292- int buf_size;
50293+ size_t buf_size;
50294 u32 reset_flag;
50295
50296 memset(buf, 0, sizeof(buf));
50297@@ -539,7 +539,7 @@ static ssize_t iwl_dbgfs_disable_ht40_write(struct file *file,
50298 {
50299 struct iwl_priv *priv = file->private_data;
50300 char buf[8];
50301- int buf_size;
50302+ size_t buf_size;
50303 int ht40;
50304
50305 memset(buf, 0, sizeof(buf));
50306@@ -591,7 +591,7 @@ static ssize_t iwl_dbgfs_sleep_level_override_write(struct file *file,
50307 {
50308 struct iwl_priv *priv = file->private_data;
50309 char buf[8];
50310- int buf_size;
50311+ size_t buf_size;
50312 int value;
50313
50314 memset(buf, 0, sizeof(buf));
50315@@ -683,10 +683,10 @@ DEBUGFS_READ_FILE_OPS(temperature);
50316 DEBUGFS_READ_WRITE_FILE_OPS(sleep_level_override);
50317 DEBUGFS_READ_FILE_OPS(current_sleep_command);
50318
50319-static const char *fmt_value = " %-30s %10u\n";
50320-static const char *fmt_hex = " %-30s 0x%02X\n";
50321-static const char *fmt_table = " %-30s %10u %10u %10u %10u\n";
50322-static const char *fmt_header =
50323+static const char fmt_value[] = " %-30s %10u\n";
50324+static const char fmt_hex[] = " %-30s 0x%02X\n";
50325+static const char fmt_table[] = " %-30s %10u %10u %10u %10u\n";
50326+static const char fmt_header[] =
50327 "%-32s current cumulative delta max\n";
50328
50329 static int iwl_statistics_flag(struct iwl_priv *priv, char *buf, int bufsz)
50330@@ -1856,7 +1856,7 @@ static ssize_t iwl_dbgfs_clear_ucode_statistics_write(struct file *file,
50331 {
50332 struct iwl_priv *priv = file->private_data;
50333 char buf[8];
50334- int buf_size;
50335+ size_t buf_size;
50336 int clear;
50337
50338 memset(buf, 0, sizeof(buf));
50339@@ -1901,7 +1901,7 @@ static ssize_t iwl_dbgfs_ucode_tracing_write(struct file *file,
50340 {
50341 struct iwl_priv *priv = file->private_data;
50342 char buf[8];
50343- int buf_size;
50344+ size_t buf_size;
50345 int trace;
50346
50347 memset(buf, 0, sizeof(buf));
50348@@ -1972,7 +1972,7 @@ static ssize_t iwl_dbgfs_missed_beacon_write(struct file *file,
50349 {
50350 struct iwl_priv *priv = file->private_data;
50351 char buf[8];
50352- int buf_size;
50353+ size_t buf_size;
50354 int missed;
50355
50356 memset(buf, 0, sizeof(buf));
50357@@ -2013,7 +2013,7 @@ static ssize_t iwl_dbgfs_plcp_delta_write(struct file *file,
50358
50359 struct iwl_priv *priv = file->private_data;
50360 char buf[8];
50361- int buf_size;
50362+ size_t buf_size;
50363 int plcp;
50364
50365 memset(buf, 0, sizeof(buf));
50366@@ -2073,7 +2073,7 @@ static ssize_t iwl_dbgfs_txfifo_flush_write(struct file *file,
50367
50368 struct iwl_priv *priv = file->private_data;
50369 char buf[8];
50370- int buf_size;
50371+ size_t buf_size;
50372 int flush;
50373
50374 memset(buf, 0, sizeof(buf));
50375@@ -2163,7 +2163,7 @@ static ssize_t iwl_dbgfs_protection_mode_write(struct file *file,
50376
50377 struct iwl_priv *priv = file->private_data;
50378 char buf[8];
50379- int buf_size;
50380+ size_t buf_size;
50381 int rts;
50382
50383 if (!priv->cfg->ht_params)
50384@@ -2204,7 +2204,7 @@ static ssize_t iwl_dbgfs_echo_test_write(struct file *file,
50385 {
50386 struct iwl_priv *priv = file->private_data;
50387 char buf[8];
50388- int buf_size;
50389+ size_t buf_size;
50390
50391 memset(buf, 0, sizeof(buf));
50392 buf_size = min(count, sizeof(buf) - 1);
50393@@ -2238,7 +2238,7 @@ static ssize_t iwl_dbgfs_log_event_write(struct file *file,
50394 struct iwl_priv *priv = file->private_data;
50395 u32 event_log_flag;
50396 char buf[8];
50397- int buf_size;
50398+ size_t buf_size;
50399
50400 /* check that the interface is up */
50401 if (!iwl_is_ready(priv))
50402@@ -2292,7 +2292,7 @@ static ssize_t iwl_dbgfs_calib_disabled_write(struct file *file,
50403 struct iwl_priv *priv = file->private_data;
50404 char buf[8];
50405 u32 calib_disabled;
50406- int buf_size;
50407+ size_t buf_size;
50408
50409 memset(buf, 0, sizeof(buf));
50410 buf_size = min(count, sizeof(buf) - 1);
50411diff --git a/drivers/net/wireless/iwlwifi/pcie/trans.c b/drivers/net/wireless/iwlwifi/pcie/trans.c
50412index cb72edb..242b24f 100644
50413--- a/drivers/net/wireless/iwlwifi/pcie/trans.c
50414+++ b/drivers/net/wireless/iwlwifi/pcie/trans.c
50415@@ -1837,7 +1837,7 @@ static ssize_t iwl_dbgfs_interrupt_write(struct file *file,
50416 struct isr_statistics *isr_stats = &trans_pcie->isr_stats;
50417
50418 char buf[8];
50419- int buf_size;
50420+ size_t buf_size;
50421 u32 reset_flag;
50422
50423 memset(buf, 0, sizeof(buf));
50424@@ -1858,7 +1858,7 @@ static ssize_t iwl_dbgfs_csr_write(struct file *file,
50425 {
50426 struct iwl_trans *trans = file->private_data;
50427 char buf[8];
50428- int buf_size;
50429+ size_t buf_size;
50430 int csr;
50431
50432 memset(buf, 0, sizeof(buf));
50433diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c
50434index 8908be6..fe97ddd 100644
50435--- a/drivers/net/wireless/mac80211_hwsim.c
50436+++ b/drivers/net/wireless/mac80211_hwsim.c
50437@@ -3070,20 +3070,20 @@ static int __init init_mac80211_hwsim(void)
50438 if (channels < 1)
50439 return -EINVAL;
50440
50441- mac80211_hwsim_mchan_ops = mac80211_hwsim_ops;
50442- mac80211_hwsim_mchan_ops.hw_scan = mac80211_hwsim_hw_scan;
50443- mac80211_hwsim_mchan_ops.cancel_hw_scan = mac80211_hwsim_cancel_hw_scan;
50444- mac80211_hwsim_mchan_ops.sw_scan_start = NULL;
50445- mac80211_hwsim_mchan_ops.sw_scan_complete = NULL;
50446- mac80211_hwsim_mchan_ops.remain_on_channel = mac80211_hwsim_roc;
50447- mac80211_hwsim_mchan_ops.cancel_remain_on_channel = mac80211_hwsim_croc;
50448- mac80211_hwsim_mchan_ops.add_chanctx = mac80211_hwsim_add_chanctx;
50449- mac80211_hwsim_mchan_ops.remove_chanctx = mac80211_hwsim_remove_chanctx;
50450- mac80211_hwsim_mchan_ops.change_chanctx = mac80211_hwsim_change_chanctx;
50451- mac80211_hwsim_mchan_ops.assign_vif_chanctx =
50452- mac80211_hwsim_assign_vif_chanctx;
50453- mac80211_hwsim_mchan_ops.unassign_vif_chanctx =
50454- mac80211_hwsim_unassign_vif_chanctx;
50455+ pax_open_kernel();
50456+ memcpy((void *)&mac80211_hwsim_mchan_ops, &mac80211_hwsim_ops, sizeof mac80211_hwsim_mchan_ops);
50457+ *(void **)&mac80211_hwsim_mchan_ops.hw_scan = mac80211_hwsim_hw_scan;
50458+ *(void **)&mac80211_hwsim_mchan_ops.cancel_hw_scan = mac80211_hwsim_cancel_hw_scan;
50459+ *(void **)&mac80211_hwsim_mchan_ops.sw_scan_start = NULL;
50460+ *(void **)&mac80211_hwsim_mchan_ops.sw_scan_complete = NULL;
50461+ *(void **)&mac80211_hwsim_mchan_ops.remain_on_channel = mac80211_hwsim_roc;
50462+ *(void **)&mac80211_hwsim_mchan_ops.cancel_remain_on_channel = mac80211_hwsim_croc;
50463+ *(void **)&mac80211_hwsim_mchan_ops.add_chanctx = mac80211_hwsim_add_chanctx;
50464+ *(void **)&mac80211_hwsim_mchan_ops.remove_chanctx = mac80211_hwsim_remove_chanctx;
50465+ *(void **)&mac80211_hwsim_mchan_ops.change_chanctx = mac80211_hwsim_change_chanctx;
50466+ *(void **)&mac80211_hwsim_mchan_ops.assign_vif_chanctx = mac80211_hwsim_assign_vif_chanctx;
50467+ *(void **)&mac80211_hwsim_mchan_ops.unassign_vif_chanctx = mac80211_hwsim_unassign_vif_chanctx;
50468+ pax_close_kernel();
50469
50470 spin_lock_init(&hwsim_radio_lock);
50471 INIT_LIST_HEAD(&hwsim_radios);
50472diff --git a/drivers/net/wireless/rndis_wlan.c b/drivers/net/wireless/rndis_wlan.c
50473index 60d44ce..884dd1c 100644
50474--- a/drivers/net/wireless/rndis_wlan.c
50475+++ b/drivers/net/wireless/rndis_wlan.c
50476@@ -1236,7 +1236,7 @@ static int set_rts_threshold(struct usbnet *usbdev, u32 rts_threshold)
50477
50478 netdev_dbg(usbdev->net, "%s(): %i\n", __func__, rts_threshold);
50479
50480- if (rts_threshold < 0 || rts_threshold > 2347)
50481+ if (rts_threshold > 2347)
50482 rts_threshold = 2347;
50483
50484 tmp = cpu_to_le32(rts_threshold);
50485diff --git a/drivers/net/wireless/rt2x00/rt2x00.h b/drivers/net/wireless/rt2x00/rt2x00.h
50486index 9bb398b..b0cc047 100644
50487--- a/drivers/net/wireless/rt2x00/rt2x00.h
50488+++ b/drivers/net/wireless/rt2x00/rt2x00.h
50489@@ -375,7 +375,7 @@ struct rt2x00_intf {
50490 * for hardware which doesn't support hardware
50491 * sequence counting.
50492 */
50493- atomic_t seqno;
50494+ atomic_unchecked_t seqno;
50495 };
50496
50497 static inline struct rt2x00_intf* vif_to_intf(struct ieee80211_vif *vif)
50498diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.c b/drivers/net/wireless/rt2x00/rt2x00queue.c
50499index 68b620b..92ecd9e 100644
50500--- a/drivers/net/wireless/rt2x00/rt2x00queue.c
50501+++ b/drivers/net/wireless/rt2x00/rt2x00queue.c
50502@@ -224,9 +224,9 @@ static void rt2x00queue_create_tx_descriptor_seq(struct rt2x00_dev *rt2x00dev,
50503 * sequence counter given by mac80211.
50504 */
50505 if (test_bit(ENTRY_TXD_FIRST_FRAGMENT, &txdesc->flags))
50506- seqno = atomic_add_return(0x10, &intf->seqno);
50507+ seqno = atomic_add_return_unchecked(0x10, &intf->seqno);
50508 else
50509- seqno = atomic_read(&intf->seqno);
50510+ seqno = atomic_read_unchecked(&intf->seqno);
50511
50512 hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG);
50513 hdr->seq_ctrl |= cpu_to_le16(seqno);
50514diff --git a/drivers/net/wireless/ti/wl1251/sdio.c b/drivers/net/wireless/ti/wl1251/sdio.c
50515index b661f896..ddf7d2b 100644
50516--- a/drivers/net/wireless/ti/wl1251/sdio.c
50517+++ b/drivers/net/wireless/ti/wl1251/sdio.c
50518@@ -282,13 +282,17 @@ static int wl1251_sdio_probe(struct sdio_func *func,
50519
50520 irq_set_irq_type(wl->irq, IRQ_TYPE_EDGE_RISING);
50521
50522- wl1251_sdio_ops.enable_irq = wl1251_enable_line_irq;
50523- wl1251_sdio_ops.disable_irq = wl1251_disable_line_irq;
50524+ pax_open_kernel();
50525+ *(void **)&wl1251_sdio_ops.enable_irq = wl1251_enable_line_irq;
50526+ *(void **)&wl1251_sdio_ops.disable_irq = wl1251_disable_line_irq;
50527+ pax_close_kernel();
50528
50529 wl1251_info("using dedicated interrupt line");
50530 } else {
50531- wl1251_sdio_ops.enable_irq = wl1251_sdio_enable_irq;
50532- wl1251_sdio_ops.disable_irq = wl1251_sdio_disable_irq;
50533+ pax_open_kernel();
50534+ *(void **)&wl1251_sdio_ops.enable_irq = wl1251_sdio_enable_irq;
50535+ *(void **)&wl1251_sdio_ops.disable_irq = wl1251_sdio_disable_irq;
50536+ pax_close_kernel();
50537
50538 wl1251_info("using SDIO interrupt");
50539 }
50540diff --git a/drivers/net/wireless/ti/wl12xx/main.c b/drivers/net/wireless/ti/wl12xx/main.c
50541index 144d1f8..7030936 100644
50542--- a/drivers/net/wireless/ti/wl12xx/main.c
50543+++ b/drivers/net/wireless/ti/wl12xx/main.c
50544@@ -657,7 +657,9 @@ static int wl12xx_identify_chip(struct wl1271 *wl)
50545 sizeof(wl->conf.mem));
50546
50547 /* read data preparation is only needed by wl127x */
50548- wl->ops->prepare_read = wl127x_prepare_read;
50549+ pax_open_kernel();
50550+ *(void **)&wl->ops->prepare_read = wl127x_prepare_read;
50551+ pax_close_kernel();
50552
50553 wlcore_set_min_fw_ver(wl, WL127X_CHIP_VER,
50554 WL127X_IFTYPE_SR_VER, WL127X_MAJOR_SR_VER,
50555@@ -682,7 +684,9 @@ static int wl12xx_identify_chip(struct wl1271 *wl)
50556 sizeof(wl->conf.mem));
50557
50558 /* read data preparation is only needed by wl127x */
50559- wl->ops->prepare_read = wl127x_prepare_read;
50560+ pax_open_kernel();
50561+ *(void **)&wl->ops->prepare_read = wl127x_prepare_read;
50562+ pax_close_kernel();
50563
50564 wlcore_set_min_fw_ver(wl, WL127X_CHIP_VER,
50565 WL127X_IFTYPE_SR_VER, WL127X_MAJOR_SR_VER,
50566diff --git a/drivers/net/wireless/ti/wl18xx/main.c b/drivers/net/wireless/ti/wl18xx/main.c
50567index 717c4f5..a813aeb 100644
50568--- a/drivers/net/wireless/ti/wl18xx/main.c
50569+++ b/drivers/net/wireless/ti/wl18xx/main.c
50570@@ -1923,8 +1923,10 @@ static int wl18xx_setup(struct wl1271 *wl)
50571 }
50572
50573 if (!checksum_param) {
50574- wl18xx_ops.set_rx_csum = NULL;
50575- wl18xx_ops.init_vif = NULL;
50576+ pax_open_kernel();
50577+ *(void **)&wl18xx_ops.set_rx_csum = NULL;
50578+ *(void **)&wl18xx_ops.init_vif = NULL;
50579+ pax_close_kernel();
50580 }
50581
50582 /* Enable 11a Band only if we have 5G antennas */
50583diff --git a/drivers/net/wireless/zd1211rw/zd_usb.c b/drivers/net/wireless/zd1211rw/zd_usb.c
50584index a912dc0..a8225ba 100644
50585--- a/drivers/net/wireless/zd1211rw/zd_usb.c
50586+++ b/drivers/net/wireless/zd1211rw/zd_usb.c
50587@@ -385,7 +385,7 @@ static inline void handle_regs_int(struct urb *urb)
50588 {
50589 struct zd_usb *usb = urb->context;
50590 struct zd_usb_interrupt *intr = &usb->intr;
50591- int len;
50592+ unsigned int len;
50593 u16 int_num;
50594
50595 ZD_ASSERT(in_interrupt());
50596diff --git a/drivers/nfc/nfcwilink.c b/drivers/nfc/nfcwilink.c
50597index ce2e2cf..f81e500 100644
50598--- a/drivers/nfc/nfcwilink.c
50599+++ b/drivers/nfc/nfcwilink.c
50600@@ -497,7 +497,7 @@ static struct nci_ops nfcwilink_ops = {
50601
50602 static int nfcwilink_probe(struct platform_device *pdev)
50603 {
50604- static struct nfcwilink *drv;
50605+ struct nfcwilink *drv;
50606 int rc;
50607 __u32 protocols;
50608
50609diff --git a/drivers/nfc/st21nfca/st21nfca.c b/drivers/nfc/st21nfca/st21nfca.c
50610index 24d3d24..ff70d28 100644
50611--- a/drivers/nfc/st21nfca/st21nfca.c
50612+++ b/drivers/nfc/st21nfca/st21nfca.c
50613@@ -588,7 +588,7 @@ static int st21nfca_get_iso14443_3_uid(struct nfc_hci_dev *hdev, u8 *gate,
50614 goto exit;
50615 }
50616
50617- gate = uid_skb->data;
50618+ memcpy(gate, uid_skb->data, uid_skb->len);
50619 *len = uid_skb->len;
50620 exit:
50621 kfree_skb(uid_skb);
50622diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c
50623index 3a896c9..ac7b1c8 100644
50624--- a/drivers/of/fdt.c
50625+++ b/drivers/of/fdt.c
50626@@ -1118,7 +1118,9 @@ static int __init of_fdt_raw_init(void)
50627 pr_warn("fdt: not creating '/sys/firmware/fdt': CRC check failed\n");
50628 return 0;
50629 }
50630- of_fdt_raw_attr.size = fdt_totalsize(initial_boot_params);
50631+ pax_open_kernel();
50632+ *(size_t *)&of_fdt_raw_attr.size = fdt_totalsize(initial_boot_params);
50633+ pax_close_kernel();
50634 return sysfs_create_bin_file(firmware_kobj, &of_fdt_raw_attr);
50635 }
50636 late_initcall(of_fdt_raw_init);
50637diff --git a/drivers/oprofile/buffer_sync.c b/drivers/oprofile/buffer_sync.c
50638index d93b2b6..ae50401 100644
50639--- a/drivers/oprofile/buffer_sync.c
50640+++ b/drivers/oprofile/buffer_sync.c
50641@@ -332,7 +332,7 @@ static void add_data(struct op_entry *entry, struct mm_struct *mm)
50642 if (cookie == NO_COOKIE)
50643 offset = pc;
50644 if (cookie == INVALID_COOKIE) {
50645- atomic_inc(&oprofile_stats.sample_lost_no_mapping);
50646+ atomic_inc_unchecked(&oprofile_stats.sample_lost_no_mapping);
50647 offset = pc;
50648 }
50649 if (cookie != last_cookie) {
50650@@ -376,14 +376,14 @@ add_sample(struct mm_struct *mm, struct op_sample *s, int in_kernel)
50651 /* add userspace sample */
50652
50653 if (!mm) {
50654- atomic_inc(&oprofile_stats.sample_lost_no_mm);
50655+ atomic_inc_unchecked(&oprofile_stats.sample_lost_no_mm);
50656 return 0;
50657 }
50658
50659 cookie = lookup_dcookie(mm, s->eip, &offset);
50660
50661 if (cookie == INVALID_COOKIE) {
50662- atomic_inc(&oprofile_stats.sample_lost_no_mapping);
50663+ atomic_inc_unchecked(&oprofile_stats.sample_lost_no_mapping);
50664 return 0;
50665 }
50666
50667@@ -552,7 +552,7 @@ void sync_buffer(int cpu)
50668 /* ignore backtraces if failed to add a sample */
50669 if (state == sb_bt_start) {
50670 state = sb_bt_ignore;
50671- atomic_inc(&oprofile_stats.bt_lost_no_mapping);
50672+ atomic_inc_unchecked(&oprofile_stats.bt_lost_no_mapping);
50673 }
50674 }
50675 release_mm(mm);
50676diff --git a/drivers/oprofile/event_buffer.c b/drivers/oprofile/event_buffer.c
50677index c0cc4e7..44d4e54 100644
50678--- a/drivers/oprofile/event_buffer.c
50679+++ b/drivers/oprofile/event_buffer.c
50680@@ -53,7 +53,7 @@ void add_event_entry(unsigned long value)
50681 }
50682
50683 if (buffer_pos == buffer_size) {
50684- atomic_inc(&oprofile_stats.event_lost_overflow);
50685+ atomic_inc_unchecked(&oprofile_stats.event_lost_overflow);
50686 return;
50687 }
50688
50689diff --git a/drivers/oprofile/oprof.c b/drivers/oprofile/oprof.c
50690index ed2c3ec..deda85a 100644
50691--- a/drivers/oprofile/oprof.c
50692+++ b/drivers/oprofile/oprof.c
50693@@ -110,7 +110,7 @@ static void switch_worker(struct work_struct *work)
50694 if (oprofile_ops.switch_events())
50695 return;
50696
50697- atomic_inc(&oprofile_stats.multiplex_counter);
50698+ atomic_inc_unchecked(&oprofile_stats.multiplex_counter);
50699 start_switch_worker();
50700 }
50701
50702diff --git a/drivers/oprofile/oprofile_files.c b/drivers/oprofile/oprofile_files.c
50703index ee2cfce..7f8f699 100644
50704--- a/drivers/oprofile/oprofile_files.c
50705+++ b/drivers/oprofile/oprofile_files.c
50706@@ -27,7 +27,7 @@ unsigned long oprofile_time_slice;
50707
50708 #ifdef CONFIG_OPROFILE_EVENT_MULTIPLEX
50709
50710-static ssize_t timeout_read(struct file *file, char __user *buf,
50711+static ssize_t __intentional_overflow(-1) timeout_read(struct file *file, char __user *buf,
50712 size_t count, loff_t *offset)
50713 {
50714 return oprofilefs_ulong_to_user(jiffies_to_msecs(oprofile_time_slice),
50715diff --git a/drivers/oprofile/oprofile_stats.c b/drivers/oprofile/oprofile_stats.c
50716index 59659ce..6c860a0 100644
50717--- a/drivers/oprofile/oprofile_stats.c
50718+++ b/drivers/oprofile/oprofile_stats.c
50719@@ -30,11 +30,11 @@ void oprofile_reset_stats(void)
50720 cpu_buf->sample_invalid_eip = 0;
50721 }
50722
50723- atomic_set(&oprofile_stats.sample_lost_no_mm, 0);
50724- atomic_set(&oprofile_stats.sample_lost_no_mapping, 0);
50725- atomic_set(&oprofile_stats.event_lost_overflow, 0);
50726- atomic_set(&oprofile_stats.bt_lost_no_mapping, 0);
50727- atomic_set(&oprofile_stats.multiplex_counter, 0);
50728+ atomic_set_unchecked(&oprofile_stats.sample_lost_no_mm, 0);
50729+ atomic_set_unchecked(&oprofile_stats.sample_lost_no_mapping, 0);
50730+ atomic_set_unchecked(&oprofile_stats.event_lost_overflow, 0);
50731+ atomic_set_unchecked(&oprofile_stats.bt_lost_no_mapping, 0);
50732+ atomic_set_unchecked(&oprofile_stats.multiplex_counter, 0);
50733 }
50734
50735
50736diff --git a/drivers/oprofile/oprofile_stats.h b/drivers/oprofile/oprofile_stats.h
50737index 1fc622b..8c48fc3 100644
50738--- a/drivers/oprofile/oprofile_stats.h
50739+++ b/drivers/oprofile/oprofile_stats.h
50740@@ -13,11 +13,11 @@
50741 #include <linux/atomic.h>
50742
50743 struct oprofile_stat_struct {
50744- atomic_t sample_lost_no_mm;
50745- atomic_t sample_lost_no_mapping;
50746- atomic_t bt_lost_no_mapping;
50747- atomic_t event_lost_overflow;
50748- atomic_t multiplex_counter;
50749+ atomic_unchecked_t sample_lost_no_mm;
50750+ atomic_unchecked_t sample_lost_no_mapping;
50751+ atomic_unchecked_t bt_lost_no_mapping;
50752+ atomic_unchecked_t event_lost_overflow;
50753+ atomic_unchecked_t multiplex_counter;
50754 };
50755
50756 extern struct oprofile_stat_struct oprofile_stats;
50757diff --git a/drivers/oprofile/oprofilefs.c b/drivers/oprofile/oprofilefs.c
50758index 3f49345..c750d0b 100644
50759--- a/drivers/oprofile/oprofilefs.c
50760+++ b/drivers/oprofile/oprofilefs.c
50761@@ -176,8 +176,8 @@ int oprofilefs_create_ro_ulong(struct dentry *root,
50762
50763 static ssize_t atomic_read_file(struct file *file, char __user *buf, size_t count, loff_t *offset)
50764 {
50765- atomic_t *val = file->private_data;
50766- return oprofilefs_ulong_to_user(atomic_read(val), buf, count, offset);
50767+ atomic_unchecked_t *val = file->private_data;
50768+ return oprofilefs_ulong_to_user(atomic_read_unchecked(val), buf, count, offset);
50769 }
50770
50771
50772@@ -189,7 +189,7 @@ static const struct file_operations atomic_ro_fops = {
50773
50774
50775 int oprofilefs_create_ro_atomic(struct dentry *root,
50776- char const *name, atomic_t *val)
50777+ char const *name, atomic_unchecked_t *val)
50778 {
50779 return __oprofilefs_create_file(root, name,
50780 &atomic_ro_fops, 0444, val);
50781diff --git a/drivers/oprofile/timer_int.c b/drivers/oprofile/timer_int.c
50782index bdef916..88c7dee 100644
50783--- a/drivers/oprofile/timer_int.c
50784+++ b/drivers/oprofile/timer_int.c
50785@@ -93,7 +93,7 @@ static int oprofile_cpu_notify(struct notifier_block *self,
50786 return NOTIFY_OK;
50787 }
50788
50789-static struct notifier_block __refdata oprofile_cpu_notifier = {
50790+static struct notifier_block oprofile_cpu_notifier = {
50791 .notifier_call = oprofile_cpu_notify,
50792 };
50793
50794diff --git a/drivers/parport/procfs.c b/drivers/parport/procfs.c
50795index 3b47080..6cd05dd 100644
50796--- a/drivers/parport/procfs.c
50797+++ b/drivers/parport/procfs.c
50798@@ -64,7 +64,7 @@ static int do_active_device(struct ctl_table *table, int write,
50799
50800 *ppos += len;
50801
50802- return copy_to_user(result, buffer, len) ? -EFAULT : 0;
50803+ return (len > sizeof buffer || copy_to_user(result, buffer, len)) ? -EFAULT : 0;
50804 }
50805
50806 #ifdef CONFIG_PARPORT_1284
50807@@ -106,7 +106,7 @@ static int do_autoprobe(struct ctl_table *table, int write,
50808
50809 *ppos += len;
50810
50811- return copy_to_user (result, buffer, len) ? -EFAULT : 0;
50812+ return (len > sizeof buffer || copy_to_user (result, buffer, len)) ? -EFAULT : 0;
50813 }
50814 #endif /* IEEE1284.3 support. */
50815
50816diff --git a/drivers/pci/host/pci-host-generic.c b/drivers/pci/host/pci-host-generic.c
50817index ba46e58..90cfc24 100644
50818--- a/drivers/pci/host/pci-host-generic.c
50819+++ b/drivers/pci/host/pci-host-generic.c
50820@@ -26,9 +26,9 @@
50821 #include <linux/platform_device.h>
50822
50823 struct gen_pci_cfg_bus_ops {
50824+ struct pci_ops ops;
50825 u32 bus_shift;
50826- void __iomem *(*map_bus)(struct pci_bus *, unsigned int, int);
50827-};
50828+} __do_const;
50829
50830 struct gen_pci_cfg_windows {
50831 struct resource res;
50832@@ -56,8 +56,12 @@ static void __iomem *gen_pci_map_cfg_bus_cam(struct pci_bus *bus,
50833 }
50834
50835 static struct gen_pci_cfg_bus_ops gen_pci_cfg_cam_bus_ops = {
50836+ .ops = {
50837+ .map_bus = gen_pci_map_cfg_bus_cam,
50838+ .read = pci_generic_config_read,
50839+ .write = pci_generic_config_write,
50840+ },
50841 .bus_shift = 16,
50842- .map_bus = gen_pci_map_cfg_bus_cam,
50843 };
50844
50845 static void __iomem *gen_pci_map_cfg_bus_ecam(struct pci_bus *bus,
50846@@ -72,13 +76,12 @@ static void __iomem *gen_pci_map_cfg_bus_ecam(struct pci_bus *bus,
50847 }
50848
50849 static struct gen_pci_cfg_bus_ops gen_pci_cfg_ecam_bus_ops = {
50850+ .ops = {
50851+ .map_bus = gen_pci_map_cfg_bus_ecam,
50852+ .read = pci_generic_config_read,
50853+ .write = pci_generic_config_write,
50854+ },
50855 .bus_shift = 20,
50856- .map_bus = gen_pci_map_cfg_bus_ecam,
50857-};
50858-
50859-static struct pci_ops gen_pci_ops = {
50860- .read = pci_generic_config_read,
50861- .write = pci_generic_config_write,
50862 };
50863
50864 static const struct of_device_id gen_pci_of_match[] = {
50865@@ -219,7 +222,6 @@ static int gen_pci_probe(struct platform_device *pdev)
50866 .private_data = (void **)&pci,
50867 .setup = gen_pci_setup,
50868 .map_irq = of_irq_parse_and_map_pci,
50869- .ops = &gen_pci_ops,
50870 };
50871
50872 if (!pci)
50873@@ -241,7 +243,7 @@ static int gen_pci_probe(struct platform_device *pdev)
50874
50875 of_id = of_match_node(gen_pci_of_match, np);
50876 pci->cfg.ops = of_id->data;
50877- gen_pci_ops.map_bus = pci->cfg.ops->map_bus;
50878+ hw.ops = &pci->cfg.ops->ops;
50879 pci->host.dev.parent = dev;
50880 INIT_LIST_HEAD(&pci->host.windows);
50881 INIT_LIST_HEAD(&pci->resources);
50882diff --git a/drivers/pci/hotplug/acpiphp_ibm.c b/drivers/pci/hotplug/acpiphp_ibm.c
50883index 6ca2399..68d866b 100644
50884--- a/drivers/pci/hotplug/acpiphp_ibm.c
50885+++ b/drivers/pci/hotplug/acpiphp_ibm.c
50886@@ -452,7 +452,9 @@ static int __init ibm_acpiphp_init(void)
50887 goto init_cleanup;
50888 }
50889
50890- ibm_apci_table_attr.size = ibm_get_table_from_acpi(NULL);
50891+ pax_open_kernel();
50892+ *(size_t *)&ibm_apci_table_attr.size = ibm_get_table_from_acpi(NULL);
50893+ pax_close_kernel();
50894 retval = sysfs_create_bin_file(sysdir, &ibm_apci_table_attr);
50895
50896 return retval;
50897diff --git a/drivers/pci/hotplug/cpcihp_generic.c b/drivers/pci/hotplug/cpcihp_generic.c
50898index 66b7bbe..26bee78 100644
50899--- a/drivers/pci/hotplug/cpcihp_generic.c
50900+++ b/drivers/pci/hotplug/cpcihp_generic.c
50901@@ -73,7 +73,6 @@ static u16 port;
50902 static unsigned int enum_bit;
50903 static u8 enum_mask;
50904
50905-static struct cpci_hp_controller_ops generic_hpc_ops;
50906 static struct cpci_hp_controller generic_hpc;
50907
50908 static int __init validate_parameters(void)
50909@@ -139,6 +138,10 @@ static int query_enum(void)
50910 return ((value & enum_mask) == enum_mask);
50911 }
50912
50913+static struct cpci_hp_controller_ops generic_hpc_ops = {
50914+ .query_enum = query_enum,
50915+};
50916+
50917 static int __init cpcihp_generic_init(void)
50918 {
50919 int status;
50920@@ -165,7 +168,6 @@ static int __init cpcihp_generic_init(void)
50921 pci_dev_put(dev);
50922
50923 memset(&generic_hpc, 0, sizeof (struct cpci_hp_controller));
50924- generic_hpc_ops.query_enum = query_enum;
50925 generic_hpc.ops = &generic_hpc_ops;
50926
50927 status = cpci_hp_register_controller(&generic_hpc);
50928diff --git a/drivers/pci/hotplug/cpcihp_zt5550.c b/drivers/pci/hotplug/cpcihp_zt5550.c
50929index 7ecf34e..effed62 100644
50930--- a/drivers/pci/hotplug/cpcihp_zt5550.c
50931+++ b/drivers/pci/hotplug/cpcihp_zt5550.c
50932@@ -59,7 +59,6 @@
50933 /* local variables */
50934 static bool debug;
50935 static bool poll;
50936-static struct cpci_hp_controller_ops zt5550_hpc_ops;
50937 static struct cpci_hp_controller zt5550_hpc;
50938
50939 /* Primary cPCI bus bridge device */
50940@@ -204,6 +203,10 @@ static int zt5550_hc_disable_irq(void)
50941 return 0;
50942 }
50943
50944+static struct cpci_hp_controller_ops zt5550_hpc_ops = {
50945+ .query_enum = zt5550_hc_query_enum,
50946+};
50947+
50948 static int zt5550_hc_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
50949 {
50950 int status;
50951@@ -215,16 +218,17 @@ static int zt5550_hc_init_one (struct pci_dev *pdev, const struct pci_device_id
50952 dbg("returned from zt5550_hc_config");
50953
50954 memset(&zt5550_hpc, 0, sizeof (struct cpci_hp_controller));
50955- zt5550_hpc_ops.query_enum = zt5550_hc_query_enum;
50956 zt5550_hpc.ops = &zt5550_hpc_ops;
50957 if (!poll) {
50958 zt5550_hpc.irq = hc_dev->irq;
50959 zt5550_hpc.irq_flags = IRQF_SHARED;
50960 zt5550_hpc.dev_id = hc_dev;
50961
50962- zt5550_hpc_ops.enable_irq = zt5550_hc_enable_irq;
50963- zt5550_hpc_ops.disable_irq = zt5550_hc_disable_irq;
50964- zt5550_hpc_ops.check_irq = zt5550_hc_check_irq;
50965+ pax_open_kernel();
50966+ *(void **)&zt5550_hpc_ops.enable_irq = zt5550_hc_enable_irq;
50967+ *(void **)&zt5550_hpc_ops.disable_irq = zt5550_hc_disable_irq;
50968+ *(void **)&zt5550_hpc_ops.check_irq = zt5550_hc_check_irq;
50969+ pax_open_kernel();
50970 } else {
50971 info("using ENUM# polling mode");
50972 }
50973diff --git a/drivers/pci/hotplug/cpqphp_nvram.c b/drivers/pci/hotplug/cpqphp_nvram.c
50974index 1e08ff8c..3cd145f 100644
50975--- a/drivers/pci/hotplug/cpqphp_nvram.c
50976+++ b/drivers/pci/hotplug/cpqphp_nvram.c
50977@@ -425,8 +425,10 @@ static u32 store_HRT (void __iomem *rom_start)
50978
50979 void compaq_nvram_init (void __iomem *rom_start)
50980 {
50981+#ifndef CONFIG_PAX_KERNEXEC
50982 if (rom_start)
50983 compaq_int15_entry_point = (rom_start + ROM_INT15_PHY_ADDR - ROM_PHY_ADDR);
50984+#endif
50985
50986 dbg("int15 entry = %p\n", compaq_int15_entry_point);
50987
50988diff --git a/drivers/pci/hotplug/pci_hotplug_core.c b/drivers/pci/hotplug/pci_hotplug_core.c
50989index 56d8486..f26113f 100644
50990--- a/drivers/pci/hotplug/pci_hotplug_core.c
50991+++ b/drivers/pci/hotplug/pci_hotplug_core.c
50992@@ -436,8 +436,10 @@ int __pci_hp_register(struct hotplug_slot *slot, struct pci_bus *bus,
50993 return -EINVAL;
50994 }
50995
50996- slot->ops->owner = owner;
50997- slot->ops->mod_name = mod_name;
50998+ pax_open_kernel();
50999+ *(struct module **)&slot->ops->owner = owner;
51000+ *(const char **)&slot->ops->mod_name = mod_name;
51001+ pax_close_kernel();
51002
51003 mutex_lock(&pci_hp_mutex);
51004 /*
51005diff --git a/drivers/pci/hotplug/pciehp_core.c b/drivers/pci/hotplug/pciehp_core.c
51006index 07aa722..84514b4 100644
51007--- a/drivers/pci/hotplug/pciehp_core.c
51008+++ b/drivers/pci/hotplug/pciehp_core.c
51009@@ -92,7 +92,7 @@ static int init_slot(struct controller *ctrl)
51010 struct slot *slot = ctrl->slot;
51011 struct hotplug_slot *hotplug = NULL;
51012 struct hotplug_slot_info *info = NULL;
51013- struct hotplug_slot_ops *ops = NULL;
51014+ hotplug_slot_ops_no_const *ops = NULL;
51015 char name[SLOT_NAME_SIZE];
51016 int retval = -ENOMEM;
51017
51018diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c
51019index c3e7dfc..cbd9625 100644
51020--- a/drivers/pci/msi.c
51021+++ b/drivers/pci/msi.c
51022@@ -513,8 +513,8 @@ static int populate_msi_sysfs(struct pci_dev *pdev)
51023 {
51024 struct attribute **msi_attrs;
51025 struct attribute *msi_attr;
51026- struct device_attribute *msi_dev_attr;
51027- struct attribute_group *msi_irq_group;
51028+ device_attribute_no_const *msi_dev_attr;
51029+ attribute_group_no_const *msi_irq_group;
51030 const struct attribute_group **msi_irq_groups;
51031 struct msi_desc *entry;
51032 int ret = -ENOMEM;
51033@@ -573,7 +573,7 @@ error_attrs:
51034 count = 0;
51035 msi_attr = msi_attrs[count];
51036 while (msi_attr) {
51037- msi_dev_attr = container_of(msi_attr, struct device_attribute, attr);
51038+ msi_dev_attr = container_of(msi_attr, device_attribute_no_const, attr);
51039 kfree(msi_attr->name);
51040 kfree(msi_dev_attr);
51041 ++count;
51042diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c
51043index 312f23a..d21181c 100644
51044--- a/drivers/pci/pci-sysfs.c
51045+++ b/drivers/pci/pci-sysfs.c
51046@@ -1140,7 +1140,7 @@ static int pci_create_attr(struct pci_dev *pdev, int num, int write_combine)
51047 {
51048 /* allocate attribute structure, piggyback attribute name */
51049 int name_len = write_combine ? 13 : 10;
51050- struct bin_attribute *res_attr;
51051+ bin_attribute_no_const *res_attr;
51052 int retval;
51053
51054 res_attr = kzalloc(sizeof(*res_attr) + name_len, GFP_ATOMIC);
51055@@ -1317,7 +1317,7 @@ static struct device_attribute reset_attr = __ATTR(reset, 0200, NULL, reset_stor
51056 static int pci_create_capabilities_sysfs(struct pci_dev *dev)
51057 {
51058 int retval;
51059- struct bin_attribute *attr;
51060+ bin_attribute_no_const *attr;
51061
51062 /* If the device has VPD, try to expose it in sysfs. */
51063 if (dev->vpd) {
51064@@ -1364,7 +1364,7 @@ int __must_check pci_create_sysfs_dev_files(struct pci_dev *pdev)
51065 {
51066 int retval;
51067 int rom_size = 0;
51068- struct bin_attribute *attr;
51069+ bin_attribute_no_const *attr;
51070
51071 if (!sysfs_initialized)
51072 return -EACCES;
51073diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
51074index 4091f82..7d98eef 100644
51075--- a/drivers/pci/pci.h
51076+++ b/drivers/pci/pci.h
51077@@ -99,7 +99,7 @@ struct pci_vpd_ops {
51078 struct pci_vpd {
51079 unsigned int len;
51080 const struct pci_vpd_ops *ops;
51081- struct bin_attribute *attr; /* descriptor for sysfs VPD entry */
51082+ bin_attribute_no_const *attr; /* descriptor for sysfs VPD entry */
51083 };
51084
51085 int pci_vpd_pci22_init(struct pci_dev *dev);
51086diff --git a/drivers/pci/pcie/aspm.c b/drivers/pci/pcie/aspm.c
51087index 820740a..8b1c673 100644
51088--- a/drivers/pci/pcie/aspm.c
51089+++ b/drivers/pci/pcie/aspm.c
51090@@ -27,9 +27,9 @@
51091 #define MODULE_PARAM_PREFIX "pcie_aspm."
51092
51093 /* Note: those are not register definitions */
51094-#define ASPM_STATE_L0S_UP (1) /* Upstream direction L0s state */
51095-#define ASPM_STATE_L0S_DW (2) /* Downstream direction L0s state */
51096-#define ASPM_STATE_L1 (4) /* L1 state */
51097+#define ASPM_STATE_L0S_UP (1U) /* Upstream direction L0s state */
51098+#define ASPM_STATE_L0S_DW (2U) /* Downstream direction L0s state */
51099+#define ASPM_STATE_L1 (4U) /* L1 state */
51100 #define ASPM_STATE_L0S (ASPM_STATE_L0S_UP | ASPM_STATE_L0S_DW)
51101 #define ASPM_STATE_ALL (ASPM_STATE_L0S | ASPM_STATE_L1)
51102
51103diff --git a/drivers/pci/pcie/portdrv_pci.c b/drivers/pci/pcie/portdrv_pci.c
51104index be35da2..ec16cdb 100644
51105--- a/drivers/pci/pcie/portdrv_pci.c
51106+++ b/drivers/pci/pcie/portdrv_pci.c
51107@@ -324,7 +324,7 @@ static int __init dmi_pcie_pme_disable_msi(const struct dmi_system_id *d)
51108 return 0;
51109 }
51110
51111-static struct dmi_system_id __initdata pcie_portdrv_dmi_table[] = {
51112+static const struct dmi_system_id __initconst pcie_portdrv_dmi_table[] = {
51113 /*
51114 * Boxes that should not use MSI for PCIe PME signaling.
51115 */
51116diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
51117index 8d2f400..c97cc91 100644
51118--- a/drivers/pci/probe.c
51119+++ b/drivers/pci/probe.c
51120@@ -175,7 +175,7 @@ int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type,
51121 u16 orig_cmd;
51122 struct pci_bus_region region, inverted_region;
51123
51124- mask = type ? PCI_ROM_ADDRESS_MASK : ~0;
51125+ mask = type ? (u32)PCI_ROM_ADDRESS_MASK : ~0;
51126
51127 /* No printks while decoding is disabled! */
51128 if (!dev->mmio_always_on) {
51129diff --git a/drivers/pci/proc.c b/drivers/pci/proc.c
51130index 3f155e7..0f4b1f0 100644
51131--- a/drivers/pci/proc.c
51132+++ b/drivers/pci/proc.c
51133@@ -434,7 +434,16 @@ static const struct file_operations proc_bus_pci_dev_operations = {
51134 static int __init pci_proc_init(void)
51135 {
51136 struct pci_dev *dev = NULL;
51137+
51138+#ifdef CONFIG_GRKERNSEC_PROC_ADD
51139+#ifdef CONFIG_GRKERNSEC_PROC_USER
51140+ proc_bus_pci_dir = proc_mkdir_mode("bus/pci", S_IRUSR | S_IXUSR, NULL);
51141+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
51142+ proc_bus_pci_dir = proc_mkdir_mode("bus/pci", S_IRUSR | S_IXUSR | S_IRGRP | S_IXGRP, NULL);
51143+#endif
51144+#else
51145 proc_bus_pci_dir = proc_mkdir("bus/pci", NULL);
51146+#endif
51147 proc_create("devices", 0, proc_bus_pci_dir,
51148 &proc_bus_pci_dev_operations);
51149 proc_initialized = 1;
51150diff --git a/drivers/platform/chrome/chromeos_pstore.c b/drivers/platform/chrome/chromeos_pstore.c
51151index 3474920..acc9581 100644
51152--- a/drivers/platform/chrome/chromeos_pstore.c
51153+++ b/drivers/platform/chrome/chromeos_pstore.c
51154@@ -13,7 +13,7 @@
51155 #include <linux/platform_device.h>
51156 #include <linux/pstore_ram.h>
51157
51158-static struct dmi_system_id chromeos_pstore_dmi_table[] __initdata = {
51159+static const struct dmi_system_id chromeos_pstore_dmi_table[] __initconst = {
51160 {
51161 /*
51162 * Today all Chromebooks/boxes ship with Google_* as version and
51163diff --git a/drivers/platform/x86/alienware-wmi.c b/drivers/platform/x86/alienware-wmi.c
51164index 1e1e594..8fe59c5 100644
51165--- a/drivers/platform/x86/alienware-wmi.c
51166+++ b/drivers/platform/x86/alienware-wmi.c
51167@@ -150,7 +150,7 @@ struct wmax_led_args {
51168 } __packed;
51169
51170 static struct platform_device *platform_device;
51171-static struct device_attribute *zone_dev_attrs;
51172+static device_attribute_no_const *zone_dev_attrs;
51173 static struct attribute **zone_attrs;
51174 static struct platform_zone *zone_data;
51175
51176@@ -160,7 +160,7 @@ static struct platform_driver platform_driver = {
51177 }
51178 };
51179
51180-static struct attribute_group zone_attribute_group = {
51181+static attribute_group_no_const zone_attribute_group = {
51182 .name = "rgb_zones",
51183 };
51184
51185diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
51186index 7543a56..367ca8ed 100644
51187--- a/drivers/platform/x86/asus-wmi.c
51188+++ b/drivers/platform/x86/asus-wmi.c
51189@@ -1589,6 +1589,10 @@ static int show_dsts(struct seq_file *m, void *data)
51190 int err;
51191 u32 retval = -1;
51192
51193+#ifdef CONFIG_GRKERNSEC_KMEM
51194+ return -EPERM;
51195+#endif
51196+
51197 err = asus_wmi_get_devstate(asus, asus->debug.dev_id, &retval);
51198
51199 if (err < 0)
51200@@ -1605,6 +1609,10 @@ static int show_devs(struct seq_file *m, void *data)
51201 int err;
51202 u32 retval = -1;
51203
51204+#ifdef CONFIG_GRKERNSEC_KMEM
51205+ return -EPERM;
51206+#endif
51207+
51208 err = asus_wmi_set_devstate(asus->debug.dev_id, asus->debug.ctrl_param,
51209 &retval);
51210
51211@@ -1629,6 +1637,10 @@ static int show_call(struct seq_file *m, void *data)
51212 union acpi_object *obj;
51213 acpi_status status;
51214
51215+#ifdef CONFIG_GRKERNSEC_KMEM
51216+ return -EPERM;
51217+#endif
51218+
51219 status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID,
51220 1, asus->debug.method_id,
51221 &input, &output);
51222diff --git a/drivers/platform/x86/compal-laptop.c b/drivers/platform/x86/compal-laptop.c
51223index bceb30b..bf063d4 100644
51224--- a/drivers/platform/x86/compal-laptop.c
51225+++ b/drivers/platform/x86/compal-laptop.c
51226@@ -766,7 +766,7 @@ static int dmi_check_cb_extra(const struct dmi_system_id *id)
51227 return 1;
51228 }
51229
51230-static struct dmi_system_id __initdata compal_dmi_table[] = {
51231+static const struct dmi_system_id __initconst compal_dmi_table[] = {
51232 {
51233 .ident = "FL90/IFL90",
51234 .matches = {
51235diff --git a/drivers/platform/x86/hdaps.c b/drivers/platform/x86/hdaps.c
51236index 458e6c9..089aee7 100644
51237--- a/drivers/platform/x86/hdaps.c
51238+++ b/drivers/platform/x86/hdaps.c
51239@@ -514,7 +514,7 @@ static int __init hdaps_dmi_match_invert(const struct dmi_system_id *id)
51240 "ThinkPad T42p", so the order of the entries matters.
51241 If your ThinkPad is not recognized, please update to latest
51242 BIOS. This is especially the case for some R52 ThinkPads. */
51243-static struct dmi_system_id __initdata hdaps_whitelist[] = {
51244+static const struct dmi_system_id __initconst hdaps_whitelist[] = {
51245 HDAPS_DMI_MATCH_INVERT("IBM", "ThinkPad R50p", HDAPS_BOTH_AXES),
51246 HDAPS_DMI_MATCH_NORMAL("IBM", "ThinkPad R50"),
51247 HDAPS_DMI_MATCH_NORMAL("IBM", "ThinkPad R51"),
51248diff --git a/drivers/platform/x86/ibm_rtl.c b/drivers/platform/x86/ibm_rtl.c
51249index 97c2be1..2ee50ce 100644
51250--- a/drivers/platform/x86/ibm_rtl.c
51251+++ b/drivers/platform/x86/ibm_rtl.c
51252@@ -227,7 +227,7 @@ static void rtl_teardown_sysfs(void) {
51253 }
51254
51255
51256-static struct dmi_system_id __initdata ibm_rtl_dmi_table[] = {
51257+static const struct dmi_system_id __initconst ibm_rtl_dmi_table[] = {
51258 { \
51259 .matches = { \
51260 DMI_MATCH(DMI_SYS_VENDOR, "IBM"), \
51261diff --git a/drivers/platform/x86/intel_oaktrail.c b/drivers/platform/x86/intel_oaktrail.c
51262index a4a4258..a58a04c 100644
51263--- a/drivers/platform/x86/intel_oaktrail.c
51264+++ b/drivers/platform/x86/intel_oaktrail.c
51265@@ -298,7 +298,7 @@ static int dmi_check_cb(const struct dmi_system_id *id)
51266 return 0;
51267 }
51268
51269-static struct dmi_system_id __initdata oaktrail_dmi_table[] = {
51270+static const struct dmi_system_id __initconst oaktrail_dmi_table[] = {
51271 {
51272 .ident = "OakTrail platform",
51273 .matches = {
51274diff --git a/drivers/platform/x86/msi-laptop.c b/drivers/platform/x86/msi-laptop.c
51275index 0859877..59d596d 100644
51276--- a/drivers/platform/x86/msi-laptop.c
51277+++ b/drivers/platform/x86/msi-laptop.c
51278@@ -604,7 +604,7 @@ static int dmi_check_cb(const struct dmi_system_id *dmi)
51279 return 1;
51280 }
51281
51282-static struct dmi_system_id __initdata msi_dmi_table[] = {
51283+static const struct dmi_system_id __initconst msi_dmi_table[] = {
51284 {
51285 .ident = "MSI S270",
51286 .matches = {
51287@@ -999,12 +999,14 @@ static int __init load_scm_model_init(struct platform_device *sdev)
51288
51289 if (!quirks->ec_read_only) {
51290 /* allow userland write sysfs file */
51291- dev_attr_bluetooth.store = store_bluetooth;
51292- dev_attr_wlan.store = store_wlan;
51293- dev_attr_threeg.store = store_threeg;
51294- dev_attr_bluetooth.attr.mode |= S_IWUSR;
51295- dev_attr_wlan.attr.mode |= S_IWUSR;
51296- dev_attr_threeg.attr.mode |= S_IWUSR;
51297+ pax_open_kernel();
51298+ *(void **)&dev_attr_bluetooth.store = store_bluetooth;
51299+ *(void **)&dev_attr_wlan.store = store_wlan;
51300+ *(void **)&dev_attr_threeg.store = store_threeg;
51301+ *(umode_t *)&dev_attr_bluetooth.attr.mode |= S_IWUSR;
51302+ *(umode_t *)&dev_attr_wlan.attr.mode |= S_IWUSR;
51303+ *(umode_t *)&dev_attr_threeg.attr.mode |= S_IWUSR;
51304+ pax_close_kernel();
51305 }
51306
51307 /* disable hardware control by fn key */
51308diff --git a/drivers/platform/x86/msi-wmi.c b/drivers/platform/x86/msi-wmi.c
51309index 6d2bac0..ec2b029 100644
51310--- a/drivers/platform/x86/msi-wmi.c
51311+++ b/drivers/platform/x86/msi-wmi.c
51312@@ -183,7 +183,7 @@ static const struct backlight_ops msi_backlight_ops = {
51313 static void msi_wmi_notify(u32 value, void *context)
51314 {
51315 struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
51316- static struct key_entry *key;
51317+ struct key_entry *key;
51318 union acpi_object *obj;
51319 acpi_status status;
51320
51321diff --git a/drivers/platform/x86/samsung-laptop.c b/drivers/platform/x86/samsung-laptop.c
51322index 9e701b2..c68a7b5 100644
51323--- a/drivers/platform/x86/samsung-laptop.c
51324+++ b/drivers/platform/x86/samsung-laptop.c
51325@@ -1567,7 +1567,7 @@ static int __init samsung_dmi_matched(const struct dmi_system_id *d)
51326 return 0;
51327 }
51328
51329-static struct dmi_system_id __initdata samsung_dmi_table[] = {
51330+static const struct dmi_system_id __initconst samsung_dmi_table[] = {
51331 {
51332 .matches = {
51333 DMI_MATCH(DMI_SYS_VENDOR,
51334diff --git a/drivers/platform/x86/samsung-q10.c b/drivers/platform/x86/samsung-q10.c
51335index e6aac72..e11ff24 100644
51336--- a/drivers/platform/x86/samsung-q10.c
51337+++ b/drivers/platform/x86/samsung-q10.c
51338@@ -95,7 +95,7 @@ static int __init dmi_check_callback(const struct dmi_system_id *id)
51339 return 1;
51340 }
51341
51342-static struct dmi_system_id __initdata samsungq10_dmi_table[] = {
51343+static const struct dmi_system_id __initconst samsungq10_dmi_table[] = {
51344 {
51345 .ident = "Samsung Q10",
51346 .matches = {
51347diff --git a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c
51348index e51c1e7..71bb385 100644
51349--- a/drivers/platform/x86/sony-laptop.c
51350+++ b/drivers/platform/x86/sony-laptop.c
51351@@ -2526,7 +2526,7 @@ static void sony_nc_gfx_switch_cleanup(struct platform_device *pd)
51352 }
51353
51354 /* High speed charging function */
51355-static struct device_attribute *hsc_handle;
51356+static device_attribute_no_const *hsc_handle;
51357
51358 static ssize_t sony_nc_highspeed_charging_store(struct device *dev,
51359 struct device_attribute *attr,
51360@@ -2600,7 +2600,7 @@ static void sony_nc_highspeed_charging_cleanup(struct platform_device *pd)
51361 }
51362
51363 /* low battery function */
51364-static struct device_attribute *lowbatt_handle;
51365+static device_attribute_no_const *lowbatt_handle;
51366
51367 static ssize_t sony_nc_lowbatt_store(struct device *dev,
51368 struct device_attribute *attr,
51369@@ -2666,7 +2666,7 @@ static void sony_nc_lowbatt_cleanup(struct platform_device *pd)
51370 }
51371
51372 /* fan speed function */
51373-static struct device_attribute *fan_handle, *hsf_handle;
51374+static device_attribute_no_const *fan_handle, *hsf_handle;
51375
51376 static ssize_t sony_nc_hsfan_store(struct device *dev,
51377 struct device_attribute *attr,
51378@@ -2773,7 +2773,7 @@ static void sony_nc_fanspeed_cleanup(struct platform_device *pd)
51379 }
51380
51381 /* USB charge function */
51382-static struct device_attribute *uc_handle;
51383+static device_attribute_no_const *uc_handle;
51384
51385 static ssize_t sony_nc_usb_charge_store(struct device *dev,
51386 struct device_attribute *attr,
51387@@ -2847,7 +2847,7 @@ static void sony_nc_usb_charge_cleanup(struct platform_device *pd)
51388 }
51389
51390 /* Panel ID function */
51391-static struct device_attribute *panel_handle;
51392+static device_attribute_no_const *panel_handle;
51393
51394 static ssize_t sony_nc_panelid_show(struct device *dev,
51395 struct device_attribute *attr, char *buffer)
51396@@ -2894,7 +2894,7 @@ static void sony_nc_panelid_cleanup(struct platform_device *pd)
51397 }
51398
51399 /* smart connect function */
51400-static struct device_attribute *sc_handle;
51401+static device_attribute_no_const *sc_handle;
51402
51403 static ssize_t sony_nc_smart_conn_store(struct device *dev,
51404 struct device_attribute *attr,
51405@@ -4854,7 +4854,7 @@ static struct acpi_driver sony_pic_driver = {
51406 .drv.pm = &sony_pic_pm,
51407 };
51408
51409-static struct dmi_system_id __initdata sonypi_dmi_table[] = {
51410+static const struct dmi_system_id __initconst sonypi_dmi_table[] = {
51411 {
51412 .ident = "Sony Vaio",
51413 .matches = {
51414diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
51415index 3b8ceee..e18652c 100644
51416--- a/drivers/platform/x86/thinkpad_acpi.c
51417+++ b/drivers/platform/x86/thinkpad_acpi.c
51418@@ -2093,7 +2093,7 @@ static int hotkey_mask_get(void)
51419 return 0;
51420 }
51421
51422-void static hotkey_mask_warn_incomplete_mask(void)
51423+static void hotkey_mask_warn_incomplete_mask(void)
51424 {
51425 /* log only what the user can fix... */
51426 const u32 wantedmask = hotkey_driver_mask &
51427@@ -2437,10 +2437,10 @@ static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn,
51428 && !tp_features.bright_unkfw)
51429 TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME);
51430 }
51431+}
51432
51433 #undef TPACPI_COMPARE_KEY
51434 #undef TPACPI_MAY_SEND_KEY
51435-}
51436
51437 /*
51438 * Polling driver
51439diff --git a/drivers/pnp/pnpbios/bioscalls.c b/drivers/pnp/pnpbios/bioscalls.c
51440index 438d4c7..ca8a2fb 100644
51441--- a/drivers/pnp/pnpbios/bioscalls.c
51442+++ b/drivers/pnp/pnpbios/bioscalls.c
51443@@ -59,7 +59,7 @@ do { \
51444 set_desc_limit(&gdt[(selname) >> 3], (size) - 1); \
51445 } while(0)
51446
51447-static struct desc_struct bad_bios_desc = GDT_ENTRY_INIT(0x4092,
51448+static const struct desc_struct bad_bios_desc = GDT_ENTRY_INIT(0x4093,
51449 (unsigned long)__va(0x400UL), PAGE_SIZE - 0x400 - 1);
51450
51451 /*
51452@@ -96,7 +96,10 @@ static inline u16 call_pnp_bios(u16 func, u16 arg1, u16 arg2, u16 arg3,
51453
51454 cpu = get_cpu();
51455 save_desc_40 = get_cpu_gdt_table(cpu)[0x40 / 8];
51456+
51457+ pax_open_kernel();
51458 get_cpu_gdt_table(cpu)[0x40 / 8] = bad_bios_desc;
51459+ pax_close_kernel();
51460
51461 /* On some boxes IRQ's during PnP BIOS calls are deadly. */
51462 spin_lock_irqsave(&pnp_bios_lock, flags);
51463@@ -134,7 +137,10 @@ static inline u16 call_pnp_bios(u16 func, u16 arg1, u16 arg2, u16 arg3,
51464 :"memory");
51465 spin_unlock_irqrestore(&pnp_bios_lock, flags);
51466
51467+ pax_open_kernel();
51468 get_cpu_gdt_table(cpu)[0x40 / 8] = save_desc_40;
51469+ pax_close_kernel();
51470+
51471 put_cpu();
51472
51473 /* If we get here and this is set then the PnP BIOS faulted on us. */
51474@@ -468,7 +474,7 @@ int pnp_bios_read_escd(char *data, u32 nvram_base)
51475 return status;
51476 }
51477
51478-void pnpbios_calls_init(union pnp_bios_install_struct *header)
51479+void __init pnpbios_calls_init(union pnp_bios_install_struct *header)
51480 {
51481 int i;
51482
51483@@ -476,6 +482,8 @@ void pnpbios_calls_init(union pnp_bios_install_struct *header)
51484 pnp_bios_callpoint.offset = header->fields.pm16offset;
51485 pnp_bios_callpoint.segment = PNP_CS16;
51486
51487+ pax_open_kernel();
51488+
51489 for_each_possible_cpu(i) {
51490 struct desc_struct *gdt = get_cpu_gdt_table(i);
51491 if (!gdt)
51492@@ -487,4 +495,6 @@ void pnpbios_calls_init(union pnp_bios_install_struct *header)
51493 set_desc_base(&gdt[GDT_ENTRY_PNPBIOS_DS],
51494 (unsigned long)__va(header->fields.pm16dseg));
51495 }
51496+
51497+ pax_close_kernel();
51498 }
51499diff --git a/drivers/pnp/pnpbios/core.c b/drivers/pnp/pnpbios/core.c
51500index facd43b..b291260 100644
51501--- a/drivers/pnp/pnpbios/core.c
51502+++ b/drivers/pnp/pnpbios/core.c
51503@@ -494,7 +494,7 @@ static int __init exploding_pnp_bios(const struct dmi_system_id *d)
51504 return 0;
51505 }
51506
51507-static struct dmi_system_id pnpbios_dmi_table[] __initdata = {
51508+static const struct dmi_system_id pnpbios_dmi_table[] __initconst = {
51509 { /* PnPBIOS GPF on boot */
51510 .callback = exploding_pnp_bios,
51511 .ident = "Higraded P14H",
51512diff --git a/drivers/power/pda_power.c b/drivers/power/pda_power.c
51513index 0c52e2a..3421ab7 100644
51514--- a/drivers/power/pda_power.c
51515+++ b/drivers/power/pda_power.c
51516@@ -37,7 +37,11 @@ static int polling;
51517
51518 #if IS_ENABLED(CONFIG_USB_PHY)
51519 static struct usb_phy *transceiver;
51520-static struct notifier_block otg_nb;
51521+static int otg_handle_notification(struct notifier_block *nb,
51522+ unsigned long event, void *unused);
51523+static struct notifier_block otg_nb = {
51524+ .notifier_call = otg_handle_notification
51525+};
51526 #endif
51527
51528 static struct regulator *ac_draw;
51529@@ -369,7 +373,6 @@ static int pda_power_probe(struct platform_device *pdev)
51530
51531 #if IS_ENABLED(CONFIG_USB_PHY)
51532 if (!IS_ERR_OR_NULL(transceiver) && pdata->use_otg_notifier) {
51533- otg_nb.notifier_call = otg_handle_notification;
51534 ret = usb_register_notifier(transceiver, &otg_nb);
51535 if (ret) {
51536 dev_err(dev, "failure to register otg notifier\n");
51537diff --git a/drivers/power/power_supply.h b/drivers/power/power_supply.h
51538index cc439fd..8fa30df 100644
51539--- a/drivers/power/power_supply.h
51540+++ b/drivers/power/power_supply.h
51541@@ -16,12 +16,12 @@ struct power_supply;
51542
51543 #ifdef CONFIG_SYSFS
51544
51545-extern void power_supply_init_attrs(struct device_type *dev_type);
51546+extern void power_supply_init_attrs(void);
51547 extern int power_supply_uevent(struct device *dev, struct kobj_uevent_env *env);
51548
51549 #else
51550
51551-static inline void power_supply_init_attrs(struct device_type *dev_type) {}
51552+static inline void power_supply_init_attrs(void) {}
51553 #define power_supply_uevent NULL
51554
51555 #endif /* CONFIG_SYSFS */
51556diff --git a/drivers/power/power_supply_core.c b/drivers/power/power_supply_core.c
51557index 694e8cd..9f03483 100644
51558--- a/drivers/power/power_supply_core.c
51559+++ b/drivers/power/power_supply_core.c
51560@@ -28,7 +28,10 @@ EXPORT_SYMBOL_GPL(power_supply_class);
51561 ATOMIC_NOTIFIER_HEAD(power_supply_notifier);
51562 EXPORT_SYMBOL_GPL(power_supply_notifier);
51563
51564-static struct device_type power_supply_dev_type;
51565+extern const struct attribute_group *power_supply_attr_groups[];
51566+static struct device_type power_supply_dev_type = {
51567+ .groups = power_supply_attr_groups,
51568+};
51569
51570 static bool __power_supply_is_supplied_by(struct power_supply *supplier,
51571 struct power_supply *supply)
51572@@ -637,7 +640,7 @@ static int __init power_supply_class_init(void)
51573 return PTR_ERR(power_supply_class);
51574
51575 power_supply_class->dev_uevent = power_supply_uevent;
51576- power_supply_init_attrs(&power_supply_dev_type);
51577+ power_supply_init_attrs();
51578
51579 return 0;
51580 }
51581diff --git a/drivers/power/power_supply_sysfs.c b/drivers/power/power_supply_sysfs.c
51582index 62653f5..d0bb485 100644
51583--- a/drivers/power/power_supply_sysfs.c
51584+++ b/drivers/power/power_supply_sysfs.c
51585@@ -238,17 +238,15 @@ static struct attribute_group power_supply_attr_group = {
51586 .is_visible = power_supply_attr_is_visible,
51587 };
51588
51589-static const struct attribute_group *power_supply_attr_groups[] = {
51590+const struct attribute_group *power_supply_attr_groups[] = {
51591 &power_supply_attr_group,
51592 NULL,
51593 };
51594
51595-void power_supply_init_attrs(struct device_type *dev_type)
51596+void power_supply_init_attrs(void)
51597 {
51598 int i;
51599
51600- dev_type->groups = power_supply_attr_groups;
51601-
51602 for (i = 0; i < ARRAY_SIZE(power_supply_attrs); i++)
51603 __power_supply_attrs[i] = &power_supply_attrs[i].attr;
51604 }
51605diff --git a/drivers/powercap/powercap_sys.c b/drivers/powercap/powercap_sys.c
51606index 84419af..268ede8 100644
51607--- a/drivers/powercap/powercap_sys.c
51608+++ b/drivers/powercap/powercap_sys.c
51609@@ -154,8 +154,77 @@ struct powercap_constraint_attr {
51610 struct device_attribute name_attr;
51611 };
51612
51613+static ssize_t show_constraint_name(struct device *dev,
51614+ struct device_attribute *dev_attr,
51615+ char *buf);
51616+
51617 static struct powercap_constraint_attr
51618- constraint_attrs[MAX_CONSTRAINTS_PER_ZONE];
51619+ constraint_attrs[MAX_CONSTRAINTS_PER_ZONE] = {
51620+ [0 ... MAX_CONSTRAINTS_PER_ZONE - 1] = {
51621+ .power_limit_attr = {
51622+ .attr = {
51623+ .name = NULL,
51624+ .mode = S_IWUSR | S_IRUGO
51625+ },
51626+ .show = show_constraint_power_limit_uw,
51627+ .store = store_constraint_power_limit_uw
51628+ },
51629+
51630+ .time_window_attr = {
51631+ .attr = {
51632+ .name = NULL,
51633+ .mode = S_IWUSR | S_IRUGO
51634+ },
51635+ .show = show_constraint_time_window_us,
51636+ .store = store_constraint_time_window_us
51637+ },
51638+
51639+ .max_power_attr = {
51640+ .attr = {
51641+ .name = NULL,
51642+ .mode = S_IRUGO
51643+ },
51644+ .show = show_constraint_max_power_uw,
51645+ .store = NULL
51646+ },
51647+
51648+ .min_power_attr = {
51649+ .attr = {
51650+ .name = NULL,
51651+ .mode = S_IRUGO
51652+ },
51653+ .show = show_constraint_min_power_uw,
51654+ .store = NULL
51655+ },
51656+
51657+ .max_time_window_attr = {
51658+ .attr = {
51659+ .name = NULL,
51660+ .mode = S_IRUGO
51661+ },
51662+ .show = show_constraint_max_time_window_us,
51663+ .store = NULL
51664+ },
51665+
51666+ .min_time_window_attr = {
51667+ .attr = {
51668+ .name = NULL,
51669+ .mode = S_IRUGO
51670+ },
51671+ .show = show_constraint_min_time_window_us,
51672+ .store = NULL
51673+ },
51674+
51675+ .name_attr = {
51676+ .attr = {
51677+ .name = NULL,
51678+ .mode = S_IRUGO
51679+ },
51680+ .show = show_constraint_name,
51681+ .store = NULL
51682+ }
51683+ }
51684+};
51685
51686 /* A list of powercap control_types */
51687 static LIST_HEAD(powercap_cntrl_list);
51688@@ -193,23 +262,16 @@ static ssize_t show_constraint_name(struct device *dev,
51689 }
51690
51691 static int create_constraint_attribute(int id, const char *name,
51692- int mode,
51693- struct device_attribute *dev_attr,
51694- ssize_t (*show)(struct device *,
51695- struct device_attribute *, char *),
51696- ssize_t (*store)(struct device *,
51697- struct device_attribute *,
51698- const char *, size_t)
51699- )
51700+ struct device_attribute *dev_attr)
51701 {
51702+ name = kasprintf(GFP_KERNEL, "constraint_%d_%s", id, name);
51703
51704- dev_attr->attr.name = kasprintf(GFP_KERNEL, "constraint_%d_%s",
51705- id, name);
51706- if (!dev_attr->attr.name)
51707+ if (!name)
51708 return -ENOMEM;
51709- dev_attr->attr.mode = mode;
51710- dev_attr->show = show;
51711- dev_attr->store = store;
51712+
51713+ pax_open_kernel();
51714+ *(const char **)&dev_attr->attr.name = name;
51715+ pax_close_kernel();
51716
51717 return 0;
51718 }
51719@@ -236,49 +298,31 @@ static int seed_constraint_attributes(void)
51720
51721 for (i = 0; i < MAX_CONSTRAINTS_PER_ZONE; ++i) {
51722 ret = create_constraint_attribute(i, "power_limit_uw",
51723- S_IWUSR | S_IRUGO,
51724- &constraint_attrs[i].power_limit_attr,
51725- show_constraint_power_limit_uw,
51726- store_constraint_power_limit_uw);
51727+ &constraint_attrs[i].power_limit_attr);
51728 if (ret)
51729 goto err_alloc;
51730 ret = create_constraint_attribute(i, "time_window_us",
51731- S_IWUSR | S_IRUGO,
51732- &constraint_attrs[i].time_window_attr,
51733- show_constraint_time_window_us,
51734- store_constraint_time_window_us);
51735+ &constraint_attrs[i].time_window_attr);
51736 if (ret)
51737 goto err_alloc;
51738- ret = create_constraint_attribute(i, "name", S_IRUGO,
51739- &constraint_attrs[i].name_attr,
51740- show_constraint_name,
51741- NULL);
51742+ ret = create_constraint_attribute(i, "name",
51743+ &constraint_attrs[i].name_attr);
51744 if (ret)
51745 goto err_alloc;
51746- ret = create_constraint_attribute(i, "max_power_uw", S_IRUGO,
51747- &constraint_attrs[i].max_power_attr,
51748- show_constraint_max_power_uw,
51749- NULL);
51750+ ret = create_constraint_attribute(i, "max_power_uw",
51751+ &constraint_attrs[i].max_power_attr);
51752 if (ret)
51753 goto err_alloc;
51754- ret = create_constraint_attribute(i, "min_power_uw", S_IRUGO,
51755- &constraint_attrs[i].min_power_attr,
51756- show_constraint_min_power_uw,
51757- NULL);
51758+ ret = create_constraint_attribute(i, "min_power_uw",
51759+ &constraint_attrs[i].min_power_attr);
51760 if (ret)
51761 goto err_alloc;
51762 ret = create_constraint_attribute(i, "max_time_window_us",
51763- S_IRUGO,
51764- &constraint_attrs[i].max_time_window_attr,
51765- show_constraint_max_time_window_us,
51766- NULL);
51767+ &constraint_attrs[i].max_time_window_attr);
51768 if (ret)
51769 goto err_alloc;
51770 ret = create_constraint_attribute(i, "min_time_window_us",
51771- S_IRUGO,
51772- &constraint_attrs[i].min_time_window_attr,
51773- show_constraint_min_time_window_us,
51774- NULL);
51775+ &constraint_attrs[i].min_time_window_attr);
51776 if (ret)
51777 goto err_alloc;
51778
51779@@ -378,10 +422,12 @@ static void create_power_zone_common_attributes(
51780 power_zone->zone_dev_attrs[count++] =
51781 &dev_attr_max_energy_range_uj.attr;
51782 if (power_zone->ops->get_energy_uj) {
51783+ pax_open_kernel();
51784 if (power_zone->ops->reset_energy_uj)
51785- dev_attr_energy_uj.attr.mode = S_IWUSR | S_IRUGO;
51786+ *(umode_t *)&dev_attr_energy_uj.attr.mode = S_IWUSR | S_IRUGO;
51787 else
51788- dev_attr_energy_uj.attr.mode = S_IRUGO;
51789+ *(umode_t *)&dev_attr_energy_uj.attr.mode = S_IRUGO;
51790+ pax_close_kernel();
51791 power_zone->zone_dev_attrs[count++] =
51792 &dev_attr_energy_uj.attr;
51793 }
51794diff --git a/drivers/ptp/ptp_private.h b/drivers/ptp/ptp_private.h
51795index 9c5d414..c7900ce 100644
51796--- a/drivers/ptp/ptp_private.h
51797+++ b/drivers/ptp/ptp_private.h
51798@@ -51,7 +51,7 @@ struct ptp_clock {
51799 struct mutex pincfg_mux; /* protect concurrent info->pin_config access */
51800 wait_queue_head_t tsev_wq;
51801 int defunct; /* tells readers to go away when clock is being removed */
51802- struct device_attribute *pin_dev_attr;
51803+ device_attribute_no_const *pin_dev_attr;
51804 struct attribute **pin_attr;
51805 struct attribute_group pin_attr_group;
51806 };
51807diff --git a/drivers/ptp/ptp_sysfs.c b/drivers/ptp/ptp_sysfs.c
51808index 302e626..12579af 100644
51809--- a/drivers/ptp/ptp_sysfs.c
51810+++ b/drivers/ptp/ptp_sysfs.c
51811@@ -280,7 +280,7 @@ static int ptp_populate_pins(struct ptp_clock *ptp)
51812 goto no_pin_attr;
51813
51814 for (i = 0; i < n_pins; i++) {
51815- struct device_attribute *da = &ptp->pin_dev_attr[i];
51816+ device_attribute_no_const *da = &ptp->pin_dev_attr[i];
51817 sysfs_attr_init(&da->attr);
51818 da->attr.name = info->pin_config[i].name;
51819 da->attr.mode = 0644;
51820diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
51821index a4a8a6d..a3456f4 100644
51822--- a/drivers/regulator/core.c
51823+++ b/drivers/regulator/core.c
51824@@ -3529,7 +3529,7 @@ regulator_register(const struct regulator_desc *regulator_desc,
51825 const struct regulation_constraints *constraints = NULL;
51826 const struct regulator_init_data *init_data;
51827 struct regulator_config *config = NULL;
51828- static atomic_t regulator_no = ATOMIC_INIT(-1);
51829+ static atomic_unchecked_t regulator_no = ATOMIC_INIT(-1);
51830 struct regulator_dev *rdev;
51831 struct device *dev;
51832 int ret, i;
51833@@ -3613,7 +3613,7 @@ regulator_register(const struct regulator_desc *regulator_desc,
51834 rdev->dev.class = &regulator_class;
51835 rdev->dev.parent = dev;
51836 dev_set_name(&rdev->dev, "regulator.%lu",
51837- (unsigned long) atomic_inc_return(&regulator_no));
51838+ (unsigned long) atomic_inc_return_unchecked(&regulator_no));
51839 ret = device_register(&rdev->dev);
51840 if (ret != 0) {
51841 put_device(&rdev->dev);
51842diff --git a/drivers/regulator/max8660.c b/drivers/regulator/max8660.c
51843index 7eee2ca..4024513 100644
51844--- a/drivers/regulator/max8660.c
51845+++ b/drivers/regulator/max8660.c
51846@@ -424,8 +424,10 @@ static int max8660_probe(struct i2c_client *client,
51847 max8660->shadow_regs[MAX8660_OVER1] = 5;
51848 } else {
51849 /* Otherwise devices can be toggled via software */
51850- max8660_dcdc_ops.enable = max8660_dcdc_enable;
51851- max8660_dcdc_ops.disable = max8660_dcdc_disable;
51852+ pax_open_kernel();
51853+ *(void **)&max8660_dcdc_ops.enable = max8660_dcdc_enable;
51854+ *(void **)&max8660_dcdc_ops.disable = max8660_dcdc_disable;
51855+ pax_close_kernel();
51856 }
51857
51858 /*
51859diff --git a/drivers/regulator/max8973-regulator.c b/drivers/regulator/max8973-regulator.c
51860index c3d55c2..0dddfe6 100644
51861--- a/drivers/regulator/max8973-regulator.c
51862+++ b/drivers/regulator/max8973-regulator.c
51863@@ -403,9 +403,11 @@ static int max8973_probe(struct i2c_client *client,
51864 if (!pdata || !pdata->enable_ext_control) {
51865 max->desc.enable_reg = MAX8973_VOUT;
51866 max->desc.enable_mask = MAX8973_VOUT_ENABLE;
51867- max->ops.enable = regulator_enable_regmap;
51868- max->ops.disable = regulator_disable_regmap;
51869- max->ops.is_enabled = regulator_is_enabled_regmap;
51870+ pax_open_kernel();
51871+ *(void **)&max->ops.enable = regulator_enable_regmap;
51872+ *(void **)&max->ops.disable = regulator_disable_regmap;
51873+ *(void **)&max->ops.is_enabled = regulator_is_enabled_regmap;
51874+ pax_close_kernel();
51875 }
51876
51877 if (pdata) {
51878diff --git a/drivers/regulator/mc13892-regulator.c b/drivers/regulator/mc13892-regulator.c
51879index 0d17c92..a29f627 100644
51880--- a/drivers/regulator/mc13892-regulator.c
51881+++ b/drivers/regulator/mc13892-regulator.c
51882@@ -584,10 +584,12 @@ static int mc13892_regulator_probe(struct platform_device *pdev)
51883 mc13xxx_unlock(mc13892);
51884
51885 /* update mc13892_vcam ops */
51886- memcpy(&mc13892_vcam_ops, mc13892_regulators[MC13892_VCAM].desc.ops,
51887+ pax_open_kernel();
51888+ memcpy((void *)&mc13892_vcam_ops, mc13892_regulators[MC13892_VCAM].desc.ops,
51889 sizeof(struct regulator_ops));
51890- mc13892_vcam_ops.set_mode = mc13892_vcam_set_mode,
51891- mc13892_vcam_ops.get_mode = mc13892_vcam_get_mode,
51892+ *(void **)&mc13892_vcam_ops.set_mode = mc13892_vcam_set_mode,
51893+ *(void **)&mc13892_vcam_ops.get_mode = mc13892_vcam_get_mode,
51894+ pax_close_kernel();
51895 mc13892_regulators[MC13892_VCAM].desc.ops = &mc13892_vcam_ops;
51896
51897 mc13xxx_data = mc13xxx_parse_regulators_dt(pdev, mc13892_regulators,
51898diff --git a/drivers/rtc/rtc-cmos.c b/drivers/rtc/rtc-cmos.c
51899index 5b2e761..c8c8a4a 100644
51900--- a/drivers/rtc/rtc-cmos.c
51901+++ b/drivers/rtc/rtc-cmos.c
51902@@ -789,7 +789,9 @@ cmos_do_probe(struct device *dev, struct resource *ports, int rtc_irq)
51903 hpet_rtc_timer_init();
51904
51905 /* export at least the first block of NVRAM */
51906- nvram.size = address_space - NVRAM_OFFSET;
51907+ pax_open_kernel();
51908+ *(size_t *)&nvram.size = address_space - NVRAM_OFFSET;
51909+ pax_close_kernel();
51910 retval = sysfs_create_bin_file(&dev->kobj, &nvram);
51911 if (retval < 0) {
51912 dev_dbg(dev, "can't create nvram file? %d\n", retval);
51913diff --git a/drivers/rtc/rtc-dev.c b/drivers/rtc/rtc-dev.c
51914index 799c34b..8e9786a 100644
51915--- a/drivers/rtc/rtc-dev.c
51916+++ b/drivers/rtc/rtc-dev.c
51917@@ -16,6 +16,7 @@
51918 #include <linux/module.h>
51919 #include <linux/rtc.h>
51920 #include <linux/sched.h>
51921+#include <linux/grsecurity.h>
51922 #include "rtc-core.h"
51923
51924 static dev_t rtc_devt;
51925@@ -347,6 +348,8 @@ static long rtc_dev_ioctl(struct file *file,
51926 if (copy_from_user(&tm, uarg, sizeof(tm)))
51927 return -EFAULT;
51928
51929+ gr_log_timechange();
51930+
51931 return rtc_set_time(rtc, &tm);
51932
51933 case RTC_PIE_ON:
51934diff --git a/drivers/rtc/rtc-ds1307.c b/drivers/rtc/rtc-ds1307.c
51935index 4ffabb3..1f87fca 100644
51936--- a/drivers/rtc/rtc-ds1307.c
51937+++ b/drivers/rtc/rtc-ds1307.c
51938@@ -107,7 +107,7 @@ struct ds1307 {
51939 u8 offset; /* register's offset */
51940 u8 regs[11];
51941 u16 nvram_offset;
51942- struct bin_attribute *nvram;
51943+ bin_attribute_no_const *nvram;
51944 enum ds_type type;
51945 unsigned long flags;
51946 #define HAS_NVRAM 0 /* bit 0 == sysfs file active */
51947diff --git a/drivers/rtc/rtc-m48t59.c b/drivers/rtc/rtc-m48t59.c
51948index 90abb5b..e0bf6dd 100644
51949--- a/drivers/rtc/rtc-m48t59.c
51950+++ b/drivers/rtc/rtc-m48t59.c
51951@@ -483,7 +483,9 @@ static int m48t59_rtc_probe(struct platform_device *pdev)
51952 if (IS_ERR(m48t59->rtc))
51953 return PTR_ERR(m48t59->rtc);
51954
51955- m48t59_nvram_attr.size = pdata->offset;
51956+ pax_open_kernel();
51957+ *(size_t *)&m48t59_nvram_attr.size = pdata->offset;
51958+ pax_close_kernel();
51959
51960 ret = sysfs_create_bin_file(&pdev->dev.kobj, &m48t59_nvram_attr);
51961 if (ret)
51962diff --git a/drivers/scsi/bfa/bfa_fcpim.h b/drivers/scsi/bfa/bfa_fcpim.h
51963index e693af6..2e525b6 100644
51964--- a/drivers/scsi/bfa/bfa_fcpim.h
51965+++ b/drivers/scsi/bfa/bfa_fcpim.h
51966@@ -36,7 +36,7 @@ struct bfa_iotag_s {
51967
51968 struct bfa_itn_s {
51969 bfa_isr_func_t isr;
51970-};
51971+} __no_const;
51972
51973 void bfa_itn_create(struct bfa_s *bfa, struct bfa_rport_s *rport,
51974 void (*isr)(struct bfa_s *bfa, struct bfi_msg_s *m));
51975diff --git a/drivers/scsi/bfa/bfa_fcs.c b/drivers/scsi/bfa/bfa_fcs.c
51976index 0f19455..ef7adb5 100644
51977--- a/drivers/scsi/bfa/bfa_fcs.c
51978+++ b/drivers/scsi/bfa/bfa_fcs.c
51979@@ -38,10 +38,21 @@ struct bfa_fcs_mod_s {
51980 #define BFA_FCS_MODULE(_mod) { _mod ## _modinit, _mod ## _modexit }
51981
51982 static struct bfa_fcs_mod_s fcs_modules[] = {
51983- { bfa_fcs_port_attach, NULL, NULL },
51984- { bfa_fcs_uf_attach, NULL, NULL },
51985- { bfa_fcs_fabric_attach, bfa_fcs_fabric_modinit,
51986- bfa_fcs_fabric_modexit },
51987+ {
51988+ .attach = bfa_fcs_port_attach,
51989+ .modinit = NULL,
51990+ .modexit = NULL
51991+ },
51992+ {
51993+ .attach = bfa_fcs_uf_attach,
51994+ .modinit = NULL,
51995+ .modexit = NULL
51996+ },
51997+ {
51998+ .attach = bfa_fcs_fabric_attach,
51999+ .modinit = bfa_fcs_fabric_modinit,
52000+ .modexit = bfa_fcs_fabric_modexit
52001+ },
52002 };
52003
52004 /*
52005diff --git a/drivers/scsi/bfa/bfa_fcs_lport.c b/drivers/scsi/bfa/bfa_fcs_lport.c
52006index ff75ef8..2dfe00a 100644
52007--- a/drivers/scsi/bfa/bfa_fcs_lport.c
52008+++ b/drivers/scsi/bfa/bfa_fcs_lport.c
52009@@ -89,15 +89,26 @@ static struct {
52010 void (*offline) (struct bfa_fcs_lport_s *port);
52011 } __port_action[] = {
52012 {
52013- bfa_fcs_lport_unknown_init, bfa_fcs_lport_unknown_online,
52014- bfa_fcs_lport_unknown_offline}, {
52015- bfa_fcs_lport_fab_init, bfa_fcs_lport_fab_online,
52016- bfa_fcs_lport_fab_offline}, {
52017- bfa_fcs_lport_n2n_init, bfa_fcs_lport_n2n_online,
52018- bfa_fcs_lport_n2n_offline}, {
52019- bfa_fcs_lport_loop_init, bfa_fcs_lport_loop_online,
52020- bfa_fcs_lport_loop_offline},
52021- };
52022+ .init = bfa_fcs_lport_unknown_init,
52023+ .online = bfa_fcs_lport_unknown_online,
52024+ .offline = bfa_fcs_lport_unknown_offline
52025+ },
52026+ {
52027+ .init = bfa_fcs_lport_fab_init,
52028+ .online = bfa_fcs_lport_fab_online,
52029+ .offline = bfa_fcs_lport_fab_offline
52030+ },
52031+ {
52032+ .init = bfa_fcs_lport_n2n_init,
52033+ .online = bfa_fcs_lport_n2n_online,
52034+ .offline = bfa_fcs_lport_n2n_offline
52035+ },
52036+ {
52037+ .init = bfa_fcs_lport_loop_init,
52038+ .online = bfa_fcs_lport_loop_online,
52039+ .offline = bfa_fcs_lport_loop_offline
52040+ },
52041+};
52042
52043 /*
52044 * fcs_port_sm FCS logical port state machine
52045diff --git a/drivers/scsi/bfa/bfa_ioc.h b/drivers/scsi/bfa/bfa_ioc.h
52046index a38aafa0..fe8f03b 100644
52047--- a/drivers/scsi/bfa/bfa_ioc.h
52048+++ b/drivers/scsi/bfa/bfa_ioc.h
52049@@ -258,7 +258,7 @@ struct bfa_ioc_cbfn_s {
52050 bfa_ioc_disable_cbfn_t disable_cbfn;
52051 bfa_ioc_hbfail_cbfn_t hbfail_cbfn;
52052 bfa_ioc_reset_cbfn_t reset_cbfn;
52053-};
52054+} __no_const;
52055
52056 /*
52057 * IOC event notification mechanism.
52058@@ -352,7 +352,7 @@ struct bfa_ioc_hwif_s {
52059 void (*ioc_set_alt_fwstate) (struct bfa_ioc_s *ioc,
52060 enum bfi_ioc_state fwstate);
52061 enum bfi_ioc_state (*ioc_get_alt_fwstate) (struct bfa_ioc_s *ioc);
52062-};
52063+} __no_const;
52064
52065 /*
52066 * Queue element to wait for room in request queue. FIFO order is
52067diff --git a/drivers/scsi/bfa/bfa_modules.h b/drivers/scsi/bfa/bfa_modules.h
52068index a14c784..6de6790 100644
52069--- a/drivers/scsi/bfa/bfa_modules.h
52070+++ b/drivers/scsi/bfa/bfa_modules.h
52071@@ -78,12 +78,12 @@ enum {
52072 \
52073 extern struct bfa_module_s hal_mod_ ## __mod; \
52074 struct bfa_module_s hal_mod_ ## __mod = { \
52075- bfa_ ## __mod ## _meminfo, \
52076- bfa_ ## __mod ## _attach, \
52077- bfa_ ## __mod ## _detach, \
52078- bfa_ ## __mod ## _start, \
52079- bfa_ ## __mod ## _stop, \
52080- bfa_ ## __mod ## _iocdisable, \
52081+ .meminfo = bfa_ ## __mod ## _meminfo, \
52082+ .attach = bfa_ ## __mod ## _attach, \
52083+ .detach = bfa_ ## __mod ## _detach, \
52084+ .start = bfa_ ## __mod ## _start, \
52085+ .stop = bfa_ ## __mod ## _stop, \
52086+ .iocdisable = bfa_ ## __mod ## _iocdisable, \
52087 }
52088
52089 #define BFA_CACHELINE_SZ (256)
52090diff --git a/drivers/scsi/fcoe/fcoe_sysfs.c b/drivers/scsi/fcoe/fcoe_sysfs.c
52091index 045c4e1..13de803 100644
52092--- a/drivers/scsi/fcoe/fcoe_sysfs.c
52093+++ b/drivers/scsi/fcoe/fcoe_sysfs.c
52094@@ -33,8 +33,8 @@
52095 */
52096 #include "libfcoe.h"
52097
52098-static atomic_t ctlr_num;
52099-static atomic_t fcf_num;
52100+static atomic_unchecked_t ctlr_num;
52101+static atomic_unchecked_t fcf_num;
52102
52103 /*
52104 * fcoe_fcf_dev_loss_tmo: the default number of seconds that fcoe sysfs
52105@@ -685,7 +685,7 @@ struct fcoe_ctlr_device *fcoe_ctlr_device_add(struct device *parent,
52106 if (!ctlr)
52107 goto out;
52108
52109- ctlr->id = atomic_inc_return(&ctlr_num) - 1;
52110+ ctlr->id = atomic_inc_return_unchecked(&ctlr_num) - 1;
52111 ctlr->f = f;
52112 ctlr->mode = FIP_CONN_TYPE_FABRIC;
52113 INIT_LIST_HEAD(&ctlr->fcfs);
52114@@ -902,7 +902,7 @@ struct fcoe_fcf_device *fcoe_fcf_device_add(struct fcoe_ctlr_device *ctlr,
52115 fcf->dev.parent = &ctlr->dev;
52116 fcf->dev.bus = &fcoe_bus_type;
52117 fcf->dev.type = &fcoe_fcf_device_type;
52118- fcf->id = atomic_inc_return(&fcf_num) - 1;
52119+ fcf->id = atomic_inc_return_unchecked(&fcf_num) - 1;
52120 fcf->state = FCOE_FCF_STATE_UNKNOWN;
52121
52122 fcf->dev_loss_tmo = ctlr->fcf_dev_loss_tmo;
52123@@ -938,8 +938,8 @@ int __init fcoe_sysfs_setup(void)
52124 {
52125 int error;
52126
52127- atomic_set(&ctlr_num, 0);
52128- atomic_set(&fcf_num, 0);
52129+ atomic_set_unchecked(&ctlr_num, 0);
52130+ atomic_set_unchecked(&fcf_num, 0);
52131
52132 error = bus_register(&fcoe_bus_type);
52133 if (error)
52134diff --git a/drivers/scsi/hosts.c b/drivers/scsi/hosts.c
52135index 8bb173e..20236b4 100644
52136--- a/drivers/scsi/hosts.c
52137+++ b/drivers/scsi/hosts.c
52138@@ -42,7 +42,7 @@
52139 #include "scsi_logging.h"
52140
52141
52142-static atomic_t scsi_host_next_hn = ATOMIC_INIT(0); /* host_no for next new host */
52143+static atomic_unchecked_t scsi_host_next_hn = ATOMIC_INIT(0); /* host_no for next new host */
52144
52145
52146 static void scsi_host_cls_release(struct device *dev)
52147@@ -392,7 +392,7 @@ struct Scsi_Host *scsi_host_alloc(struct scsi_host_template *sht, int privsize)
52148 * subtract one because we increment first then return, but we need to
52149 * know what the next host number was before increment
52150 */
52151- shost->host_no = atomic_inc_return(&scsi_host_next_hn) - 1;
52152+ shost->host_no = atomic_inc_return_unchecked(&scsi_host_next_hn) - 1;
52153 shost->dma_channel = 0xff;
52154
52155 /* These three are default values which can be overridden */
52156diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
52157index a1cfbd3..d7f8ebc 100644
52158--- a/drivers/scsi/hpsa.c
52159+++ b/drivers/scsi/hpsa.c
52160@@ -697,10 +697,10 @@ static inline u32 next_command(struct ctlr_info *h, u8 q)
52161 struct reply_queue_buffer *rq = &h->reply_queue[q];
52162
52163 if (h->transMethod & CFGTBL_Trans_io_accel1)
52164- return h->access.command_completed(h, q);
52165+ return h->access->command_completed(h, q);
52166
52167 if (unlikely(!(h->transMethod & CFGTBL_Trans_Performant)))
52168- return h->access.command_completed(h, q);
52169+ return h->access->command_completed(h, q);
52170
52171 if ((rq->head[rq->current_entry] & 1) == rq->wraparound) {
52172 a = rq->head[rq->current_entry];
52173@@ -837,7 +837,7 @@ static void enqueue_cmd_and_start_io(struct ctlr_info *h,
52174 break;
52175 default:
52176 set_performant_mode(h, c);
52177- h->access.submit_command(h, c);
52178+ h->access->submit_command(h, c);
52179 }
52180 }
52181
52182@@ -5369,17 +5369,17 @@ static void __iomem *remap_pci_mem(ulong base, ulong size)
52183
52184 static inline unsigned long get_next_completion(struct ctlr_info *h, u8 q)
52185 {
52186- return h->access.command_completed(h, q);
52187+ return h->access->command_completed(h, q);
52188 }
52189
52190 static inline bool interrupt_pending(struct ctlr_info *h)
52191 {
52192- return h->access.intr_pending(h);
52193+ return h->access->intr_pending(h);
52194 }
52195
52196 static inline long interrupt_not_for_us(struct ctlr_info *h)
52197 {
52198- return (h->access.intr_pending(h) == 0) ||
52199+ return (h->access->intr_pending(h) == 0) ||
52200 (h->interrupts_enabled == 0);
52201 }
52202
52203@@ -6270,7 +6270,7 @@ static int hpsa_pci_init(struct ctlr_info *h)
52204 if (prod_index < 0)
52205 return prod_index;
52206 h->product_name = products[prod_index].product_name;
52207- h->access = *(products[prod_index].access);
52208+ h->access = products[prod_index].access;
52209
52210 pci_disable_link_state(h->pdev, PCIE_LINK_STATE_L0S |
52211 PCIE_LINK_STATE_L1 | PCIE_LINK_STATE_CLKPM);
52212@@ -6649,7 +6649,7 @@ static void controller_lockup_detected(struct ctlr_info *h)
52213 unsigned long flags;
52214 u32 lockup_detected;
52215
52216- h->access.set_intr_mask(h, HPSA_INTR_OFF);
52217+ h->access->set_intr_mask(h, HPSA_INTR_OFF);
52218 spin_lock_irqsave(&h->lock, flags);
52219 lockup_detected = readl(h->vaddr + SA5_SCRATCHPAD_OFFSET);
52220 if (!lockup_detected) {
52221@@ -6924,7 +6924,7 @@ reinit_after_soft_reset:
52222 }
52223
52224 /* make sure the board interrupts are off */
52225- h->access.set_intr_mask(h, HPSA_INTR_OFF);
52226+ h->access->set_intr_mask(h, HPSA_INTR_OFF);
52227
52228 if (hpsa_request_irqs(h, do_hpsa_intr_msi, do_hpsa_intr_intx))
52229 goto clean2;
52230@@ -6960,7 +6960,7 @@ reinit_after_soft_reset:
52231 * fake ones to scoop up any residual completions.
52232 */
52233 spin_lock_irqsave(&h->lock, flags);
52234- h->access.set_intr_mask(h, HPSA_INTR_OFF);
52235+ h->access->set_intr_mask(h, HPSA_INTR_OFF);
52236 spin_unlock_irqrestore(&h->lock, flags);
52237 hpsa_free_irqs(h);
52238 rc = hpsa_request_irqs(h, hpsa_msix_discard_completions,
52239@@ -6979,9 +6979,9 @@ reinit_after_soft_reset:
52240 dev_info(&h->pdev->dev, "Board READY.\n");
52241 dev_info(&h->pdev->dev,
52242 "Waiting for stale completions to drain.\n");
52243- h->access.set_intr_mask(h, HPSA_INTR_ON);
52244+ h->access->set_intr_mask(h, HPSA_INTR_ON);
52245 msleep(10000);
52246- h->access.set_intr_mask(h, HPSA_INTR_OFF);
52247+ h->access->set_intr_mask(h, HPSA_INTR_OFF);
52248
52249 rc = controller_reset_failed(h->cfgtable);
52250 if (rc)
52251@@ -7006,7 +7006,7 @@ reinit_after_soft_reset:
52252
52253
52254 /* Turn the interrupts on so we can service requests */
52255- h->access.set_intr_mask(h, HPSA_INTR_ON);
52256+ h->access->set_intr_mask(h, HPSA_INTR_ON);
52257
52258 hpsa_hba_inquiry(h);
52259 hpsa_register_scsi(h); /* hook ourselves into SCSI subsystem */
52260@@ -7079,7 +7079,7 @@ static void hpsa_shutdown(struct pci_dev *pdev)
52261 * To write all data in the battery backed cache to disks
52262 */
52263 hpsa_flush_cache(h);
52264- h->access.set_intr_mask(h, HPSA_INTR_OFF);
52265+ h->access->set_intr_mask(h, HPSA_INTR_OFF);
52266 hpsa_free_irqs_and_disable_msix(h);
52267 }
52268
52269@@ -7200,7 +7200,7 @@ static int hpsa_enter_performant_mode(struct ctlr_info *h, u32 trans_support)
52270 CFGTBL_Trans_enable_directed_msix |
52271 (trans_support & (CFGTBL_Trans_io_accel1 |
52272 CFGTBL_Trans_io_accel2));
52273- struct access_method access = SA5_performant_access;
52274+ struct access_method *access = &SA5_performant_access;
52275
52276 /* This is a bit complicated. There are 8 registers on
52277 * the controller which we write to to tell it 8 different
52278@@ -7242,7 +7242,7 @@ static int hpsa_enter_performant_mode(struct ctlr_info *h, u32 trans_support)
52279 * perform the superfluous readl() after each command submission.
52280 */
52281 if (trans_support & (CFGTBL_Trans_io_accel1 | CFGTBL_Trans_io_accel2))
52282- access = SA5_performant_access_no_read;
52283+ access = &SA5_performant_access_no_read;
52284
52285 /* Controller spec: zero out this buffer. */
52286 for (i = 0; i < h->nreply_queues; i++)
52287@@ -7272,12 +7272,12 @@ static int hpsa_enter_performant_mode(struct ctlr_info *h, u32 trans_support)
52288 * enable outbound interrupt coalescing in accelerator mode;
52289 */
52290 if (trans_support & CFGTBL_Trans_io_accel1) {
52291- access = SA5_ioaccel_mode1_access;
52292+ access = &SA5_ioaccel_mode1_access;
52293 writel(10, &h->cfgtable->HostWrite.CoalIntDelay);
52294 writel(4, &h->cfgtable->HostWrite.CoalIntCount);
52295 } else {
52296 if (trans_support & CFGTBL_Trans_io_accel2) {
52297- access = SA5_ioaccel_mode2_access;
52298+ access = &SA5_ioaccel_mode2_access;
52299 writel(10, &h->cfgtable->HostWrite.CoalIntDelay);
52300 writel(4, &h->cfgtable->HostWrite.CoalIntCount);
52301 }
52302diff --git a/drivers/scsi/hpsa.h b/drivers/scsi/hpsa.h
52303index 6577130..955f9a4 100644
52304--- a/drivers/scsi/hpsa.h
52305+++ b/drivers/scsi/hpsa.h
52306@@ -143,7 +143,7 @@ struct ctlr_info {
52307 unsigned int msix_vector;
52308 unsigned int msi_vector;
52309 int intr_mode; /* either PERF_MODE_INT or SIMPLE_MODE_INT */
52310- struct access_method access;
52311+ struct access_method *access;
52312 char hba_mode_enabled;
52313
52314 /* queue and queue Info */
52315@@ -525,38 +525,38 @@ static unsigned long SA5_ioaccel_mode1_completed(struct ctlr_info *h, u8 q)
52316 }
52317
52318 static struct access_method SA5_access = {
52319- SA5_submit_command,
52320- SA5_intr_mask,
52321- SA5_intr_pending,
52322- SA5_completed,
52323+ .submit_command = SA5_submit_command,
52324+ .set_intr_mask = SA5_intr_mask,
52325+ .intr_pending = SA5_intr_pending,
52326+ .command_completed = SA5_completed,
52327 };
52328
52329 static struct access_method SA5_ioaccel_mode1_access = {
52330- SA5_submit_command,
52331- SA5_performant_intr_mask,
52332- SA5_ioaccel_mode1_intr_pending,
52333- SA5_ioaccel_mode1_completed,
52334+ .submit_command = SA5_submit_command,
52335+ .set_intr_mask = SA5_performant_intr_mask,
52336+ .intr_pending = SA5_ioaccel_mode1_intr_pending,
52337+ .command_completed = SA5_ioaccel_mode1_completed,
52338 };
52339
52340 static struct access_method SA5_ioaccel_mode2_access = {
52341- SA5_submit_command_ioaccel2,
52342- SA5_performant_intr_mask,
52343- SA5_performant_intr_pending,
52344- SA5_performant_completed,
52345+ .submit_command = SA5_submit_command_ioaccel2,
52346+ .set_intr_mask = SA5_performant_intr_mask,
52347+ .intr_pending = SA5_performant_intr_pending,
52348+ .command_completed = SA5_performant_completed,
52349 };
52350
52351 static struct access_method SA5_performant_access = {
52352- SA5_submit_command,
52353- SA5_performant_intr_mask,
52354- SA5_performant_intr_pending,
52355- SA5_performant_completed,
52356+ .submit_command = SA5_submit_command,
52357+ .set_intr_mask = SA5_performant_intr_mask,
52358+ .intr_pending = SA5_performant_intr_pending,
52359+ .command_completed = SA5_performant_completed,
52360 };
52361
52362 static struct access_method SA5_performant_access_no_read = {
52363- SA5_submit_command_no_read,
52364- SA5_performant_intr_mask,
52365- SA5_performant_intr_pending,
52366- SA5_performant_completed,
52367+ .submit_command = SA5_submit_command_no_read,
52368+ .set_intr_mask = SA5_performant_intr_mask,
52369+ .intr_pending = SA5_performant_intr_pending,
52370+ .command_completed = SA5_performant_completed,
52371 };
52372
52373 struct board_type {
52374diff --git a/drivers/scsi/libfc/fc_exch.c b/drivers/scsi/libfc/fc_exch.c
52375index 1b3a094..068e683 100644
52376--- a/drivers/scsi/libfc/fc_exch.c
52377+++ b/drivers/scsi/libfc/fc_exch.c
52378@@ -101,12 +101,12 @@ struct fc_exch_mgr {
52379 u16 pool_max_index;
52380
52381 struct {
52382- atomic_t no_free_exch;
52383- atomic_t no_free_exch_xid;
52384- atomic_t xid_not_found;
52385- atomic_t xid_busy;
52386- atomic_t seq_not_found;
52387- atomic_t non_bls_resp;
52388+ atomic_unchecked_t no_free_exch;
52389+ atomic_unchecked_t no_free_exch_xid;
52390+ atomic_unchecked_t xid_not_found;
52391+ atomic_unchecked_t xid_busy;
52392+ atomic_unchecked_t seq_not_found;
52393+ atomic_unchecked_t non_bls_resp;
52394 } stats;
52395 };
52396
52397@@ -811,7 +811,7 @@ static struct fc_exch *fc_exch_em_alloc(struct fc_lport *lport,
52398 /* allocate memory for exchange */
52399 ep = mempool_alloc(mp->ep_pool, GFP_ATOMIC);
52400 if (!ep) {
52401- atomic_inc(&mp->stats.no_free_exch);
52402+ atomic_inc_unchecked(&mp->stats.no_free_exch);
52403 goto out;
52404 }
52405 memset(ep, 0, sizeof(*ep));
52406@@ -874,7 +874,7 @@ out:
52407 return ep;
52408 err:
52409 spin_unlock_bh(&pool->lock);
52410- atomic_inc(&mp->stats.no_free_exch_xid);
52411+ atomic_inc_unchecked(&mp->stats.no_free_exch_xid);
52412 mempool_free(ep, mp->ep_pool);
52413 return NULL;
52414 }
52415@@ -1023,7 +1023,7 @@ static enum fc_pf_rjt_reason fc_seq_lookup_recip(struct fc_lport *lport,
52416 xid = ntohs(fh->fh_ox_id); /* we originated exch */
52417 ep = fc_exch_find(mp, xid);
52418 if (!ep) {
52419- atomic_inc(&mp->stats.xid_not_found);
52420+ atomic_inc_unchecked(&mp->stats.xid_not_found);
52421 reject = FC_RJT_OX_ID;
52422 goto out;
52423 }
52424@@ -1053,7 +1053,7 @@ static enum fc_pf_rjt_reason fc_seq_lookup_recip(struct fc_lport *lport,
52425 ep = fc_exch_find(mp, xid);
52426 if ((f_ctl & FC_FC_FIRST_SEQ) && fc_sof_is_init(fr_sof(fp))) {
52427 if (ep) {
52428- atomic_inc(&mp->stats.xid_busy);
52429+ atomic_inc_unchecked(&mp->stats.xid_busy);
52430 reject = FC_RJT_RX_ID;
52431 goto rel;
52432 }
52433@@ -1064,7 +1064,7 @@ static enum fc_pf_rjt_reason fc_seq_lookup_recip(struct fc_lport *lport,
52434 }
52435 xid = ep->xid; /* get our XID */
52436 } else if (!ep) {
52437- atomic_inc(&mp->stats.xid_not_found);
52438+ atomic_inc_unchecked(&mp->stats.xid_not_found);
52439 reject = FC_RJT_RX_ID; /* XID not found */
52440 goto out;
52441 }
52442@@ -1082,7 +1082,7 @@ static enum fc_pf_rjt_reason fc_seq_lookup_recip(struct fc_lport *lport,
52443 } else {
52444 sp = &ep->seq;
52445 if (sp->id != fh->fh_seq_id) {
52446- atomic_inc(&mp->stats.seq_not_found);
52447+ atomic_inc_unchecked(&mp->stats.seq_not_found);
52448 if (f_ctl & FC_FC_END_SEQ) {
52449 /*
52450 * Update sequence_id based on incoming last
52451@@ -1533,22 +1533,22 @@ static void fc_exch_recv_seq_resp(struct fc_exch_mgr *mp, struct fc_frame *fp)
52452
52453 ep = fc_exch_find(mp, ntohs(fh->fh_ox_id));
52454 if (!ep) {
52455- atomic_inc(&mp->stats.xid_not_found);
52456+ atomic_inc_unchecked(&mp->stats.xid_not_found);
52457 goto out;
52458 }
52459 if (ep->esb_stat & ESB_ST_COMPLETE) {
52460- atomic_inc(&mp->stats.xid_not_found);
52461+ atomic_inc_unchecked(&mp->stats.xid_not_found);
52462 goto rel;
52463 }
52464 if (ep->rxid == FC_XID_UNKNOWN)
52465 ep->rxid = ntohs(fh->fh_rx_id);
52466 if (ep->sid != 0 && ep->sid != ntoh24(fh->fh_d_id)) {
52467- atomic_inc(&mp->stats.xid_not_found);
52468+ atomic_inc_unchecked(&mp->stats.xid_not_found);
52469 goto rel;
52470 }
52471 if (ep->did != ntoh24(fh->fh_s_id) &&
52472 ep->did != FC_FID_FLOGI) {
52473- atomic_inc(&mp->stats.xid_not_found);
52474+ atomic_inc_unchecked(&mp->stats.xid_not_found);
52475 goto rel;
52476 }
52477 sof = fr_sof(fp);
52478@@ -1557,7 +1557,7 @@ static void fc_exch_recv_seq_resp(struct fc_exch_mgr *mp, struct fc_frame *fp)
52479 sp->ssb_stat |= SSB_ST_RESP;
52480 sp->id = fh->fh_seq_id;
52481 } else if (sp->id != fh->fh_seq_id) {
52482- atomic_inc(&mp->stats.seq_not_found);
52483+ atomic_inc_unchecked(&mp->stats.seq_not_found);
52484 goto rel;
52485 }
52486
52487@@ -1619,9 +1619,9 @@ static void fc_exch_recv_resp(struct fc_exch_mgr *mp, struct fc_frame *fp)
52488 sp = fc_seq_lookup_orig(mp, fp); /* doesn't hold sequence */
52489
52490 if (!sp)
52491- atomic_inc(&mp->stats.xid_not_found);
52492+ atomic_inc_unchecked(&mp->stats.xid_not_found);
52493 else
52494- atomic_inc(&mp->stats.non_bls_resp);
52495+ atomic_inc_unchecked(&mp->stats.non_bls_resp);
52496
52497 fc_frame_free(fp);
52498 }
52499@@ -2261,13 +2261,13 @@ void fc_exch_update_stats(struct fc_lport *lport)
52500
52501 list_for_each_entry(ema, &lport->ema_list, ema_list) {
52502 mp = ema->mp;
52503- st->fc_no_free_exch += atomic_read(&mp->stats.no_free_exch);
52504+ st->fc_no_free_exch += atomic_read_unchecked(&mp->stats.no_free_exch);
52505 st->fc_no_free_exch_xid +=
52506- atomic_read(&mp->stats.no_free_exch_xid);
52507- st->fc_xid_not_found += atomic_read(&mp->stats.xid_not_found);
52508- st->fc_xid_busy += atomic_read(&mp->stats.xid_busy);
52509- st->fc_seq_not_found += atomic_read(&mp->stats.seq_not_found);
52510- st->fc_non_bls_resp += atomic_read(&mp->stats.non_bls_resp);
52511+ atomic_read_unchecked(&mp->stats.no_free_exch_xid);
52512+ st->fc_xid_not_found += atomic_read_unchecked(&mp->stats.xid_not_found);
52513+ st->fc_xid_busy += atomic_read_unchecked(&mp->stats.xid_busy);
52514+ st->fc_seq_not_found += atomic_read_unchecked(&mp->stats.seq_not_found);
52515+ st->fc_non_bls_resp += atomic_read_unchecked(&mp->stats.non_bls_resp);
52516 }
52517 }
52518 EXPORT_SYMBOL(fc_exch_update_stats);
52519diff --git a/drivers/scsi/libsas/sas_ata.c b/drivers/scsi/libsas/sas_ata.c
52520index 9c706d8..d3e3ed2 100644
52521--- a/drivers/scsi/libsas/sas_ata.c
52522+++ b/drivers/scsi/libsas/sas_ata.c
52523@@ -535,7 +535,7 @@ static struct ata_port_operations sas_sata_ops = {
52524 .postreset = ata_std_postreset,
52525 .error_handler = ata_std_error_handler,
52526 .post_internal_cmd = sas_ata_post_internal,
52527- .qc_defer = ata_std_qc_defer,
52528+ .qc_defer = ata_std_qc_defer,
52529 .qc_prep = ata_noop_qc_prep,
52530 .qc_issue = sas_ata_qc_issue,
52531 .qc_fill_rtf = sas_ata_qc_fill_rtf,
52532diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h
52533index 434e903..5a4a79b 100644
52534--- a/drivers/scsi/lpfc/lpfc.h
52535+++ b/drivers/scsi/lpfc/lpfc.h
52536@@ -430,7 +430,7 @@ struct lpfc_vport {
52537 struct dentry *debug_nodelist;
52538 struct dentry *vport_debugfs_root;
52539 struct lpfc_debugfs_trc *disc_trc;
52540- atomic_t disc_trc_cnt;
52541+ atomic_unchecked_t disc_trc_cnt;
52542 #endif
52543 uint8_t stat_data_enabled;
52544 uint8_t stat_data_blocked;
52545@@ -880,8 +880,8 @@ struct lpfc_hba {
52546 struct timer_list fabric_block_timer;
52547 unsigned long bit_flags;
52548 #define FABRIC_COMANDS_BLOCKED 0
52549- atomic_t num_rsrc_err;
52550- atomic_t num_cmd_success;
52551+ atomic_unchecked_t num_rsrc_err;
52552+ atomic_unchecked_t num_cmd_success;
52553 unsigned long last_rsrc_error_time;
52554 unsigned long last_ramp_down_time;
52555 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
52556@@ -916,7 +916,7 @@ struct lpfc_hba {
52557
52558 struct dentry *debug_slow_ring_trc;
52559 struct lpfc_debugfs_trc *slow_ring_trc;
52560- atomic_t slow_ring_trc_cnt;
52561+ atomic_unchecked_t slow_ring_trc_cnt;
52562 /* iDiag debugfs sub-directory */
52563 struct dentry *idiag_root;
52564 struct dentry *idiag_pci_cfg;
52565diff --git a/drivers/scsi/lpfc/lpfc_debugfs.c b/drivers/scsi/lpfc/lpfc_debugfs.c
52566index 5633e7d..8272114 100644
52567--- a/drivers/scsi/lpfc/lpfc_debugfs.c
52568+++ b/drivers/scsi/lpfc/lpfc_debugfs.c
52569@@ -106,7 +106,7 @@ MODULE_PARM_DESC(lpfc_debugfs_mask_disc_trc,
52570
52571 #include <linux/debugfs.h>
52572
52573-static atomic_t lpfc_debugfs_seq_trc_cnt = ATOMIC_INIT(0);
52574+static atomic_unchecked_t lpfc_debugfs_seq_trc_cnt = ATOMIC_INIT(0);
52575 static unsigned long lpfc_debugfs_start_time = 0L;
52576
52577 /* iDiag */
52578@@ -147,7 +147,7 @@ lpfc_debugfs_disc_trc_data(struct lpfc_vport *vport, char *buf, int size)
52579 lpfc_debugfs_enable = 0;
52580
52581 len = 0;
52582- index = (atomic_read(&vport->disc_trc_cnt) + 1) &
52583+ index = (atomic_read_unchecked(&vport->disc_trc_cnt) + 1) &
52584 (lpfc_debugfs_max_disc_trc - 1);
52585 for (i = index; i < lpfc_debugfs_max_disc_trc; i++) {
52586 dtp = vport->disc_trc + i;
52587@@ -213,7 +213,7 @@ lpfc_debugfs_slow_ring_trc_data(struct lpfc_hba *phba, char *buf, int size)
52588 lpfc_debugfs_enable = 0;
52589
52590 len = 0;
52591- index = (atomic_read(&phba->slow_ring_trc_cnt) + 1) &
52592+ index = (atomic_read_unchecked(&phba->slow_ring_trc_cnt) + 1) &
52593 (lpfc_debugfs_max_slow_ring_trc - 1);
52594 for (i = index; i < lpfc_debugfs_max_slow_ring_trc; i++) {
52595 dtp = phba->slow_ring_trc + i;
52596@@ -646,14 +646,14 @@ lpfc_debugfs_disc_trc(struct lpfc_vport *vport, int mask, char *fmt,
52597 !vport || !vport->disc_trc)
52598 return;
52599
52600- index = atomic_inc_return(&vport->disc_trc_cnt) &
52601+ index = atomic_inc_return_unchecked(&vport->disc_trc_cnt) &
52602 (lpfc_debugfs_max_disc_trc - 1);
52603 dtp = vport->disc_trc + index;
52604 dtp->fmt = fmt;
52605 dtp->data1 = data1;
52606 dtp->data2 = data2;
52607 dtp->data3 = data3;
52608- dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt);
52609+ dtp->seq_cnt = atomic_inc_return_unchecked(&lpfc_debugfs_seq_trc_cnt);
52610 dtp->jif = jiffies;
52611 #endif
52612 return;
52613@@ -684,14 +684,14 @@ lpfc_debugfs_slow_ring_trc(struct lpfc_hba *phba, char *fmt,
52614 !phba || !phba->slow_ring_trc)
52615 return;
52616
52617- index = atomic_inc_return(&phba->slow_ring_trc_cnt) &
52618+ index = atomic_inc_return_unchecked(&phba->slow_ring_trc_cnt) &
52619 (lpfc_debugfs_max_slow_ring_trc - 1);
52620 dtp = phba->slow_ring_trc + index;
52621 dtp->fmt = fmt;
52622 dtp->data1 = data1;
52623 dtp->data2 = data2;
52624 dtp->data3 = data3;
52625- dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt);
52626+ dtp->seq_cnt = atomic_inc_return_unchecked(&lpfc_debugfs_seq_trc_cnt);
52627 dtp->jif = jiffies;
52628 #endif
52629 return;
52630@@ -4268,7 +4268,7 @@ lpfc_debugfs_initialize(struct lpfc_vport *vport)
52631 "slow_ring buffer\n");
52632 goto debug_failed;
52633 }
52634- atomic_set(&phba->slow_ring_trc_cnt, 0);
52635+ atomic_set_unchecked(&phba->slow_ring_trc_cnt, 0);
52636 memset(phba->slow_ring_trc, 0,
52637 (sizeof(struct lpfc_debugfs_trc) *
52638 lpfc_debugfs_max_slow_ring_trc));
52639@@ -4314,7 +4314,7 @@ lpfc_debugfs_initialize(struct lpfc_vport *vport)
52640 "buffer\n");
52641 goto debug_failed;
52642 }
52643- atomic_set(&vport->disc_trc_cnt, 0);
52644+ atomic_set_unchecked(&vport->disc_trc_cnt, 0);
52645
52646 snprintf(name, sizeof(name), "discovery_trace");
52647 vport->debug_disc_trc =
52648diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
52649index 0b2c53a..aec2b45 100644
52650--- a/drivers/scsi/lpfc/lpfc_init.c
52651+++ b/drivers/scsi/lpfc/lpfc_init.c
52652@@ -11290,8 +11290,10 @@ lpfc_init(void)
52653 "misc_register returned with status %d", error);
52654
52655 if (lpfc_enable_npiv) {
52656- lpfc_transport_functions.vport_create = lpfc_vport_create;
52657- lpfc_transport_functions.vport_delete = lpfc_vport_delete;
52658+ pax_open_kernel();
52659+ *(void **)&lpfc_transport_functions.vport_create = lpfc_vport_create;
52660+ *(void **)&lpfc_transport_functions.vport_delete = lpfc_vport_delete;
52661+ pax_close_kernel();
52662 }
52663 lpfc_transport_template =
52664 fc_attach_transport(&lpfc_transport_functions);
52665diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
52666index 4f9222e..f1850e3 100644
52667--- a/drivers/scsi/lpfc/lpfc_scsi.c
52668+++ b/drivers/scsi/lpfc/lpfc_scsi.c
52669@@ -261,7 +261,7 @@ lpfc_rampdown_queue_depth(struct lpfc_hba *phba)
52670 unsigned long expires;
52671
52672 spin_lock_irqsave(&phba->hbalock, flags);
52673- atomic_inc(&phba->num_rsrc_err);
52674+ atomic_inc_unchecked(&phba->num_rsrc_err);
52675 phba->last_rsrc_error_time = jiffies;
52676
52677 expires = phba->last_ramp_down_time + QUEUE_RAMP_DOWN_INTERVAL;
52678@@ -303,8 +303,8 @@ lpfc_ramp_down_queue_handler(struct lpfc_hba *phba)
52679 unsigned long num_rsrc_err, num_cmd_success;
52680 int i;
52681
52682- num_rsrc_err = atomic_read(&phba->num_rsrc_err);
52683- num_cmd_success = atomic_read(&phba->num_cmd_success);
52684+ num_rsrc_err = atomic_read_unchecked(&phba->num_rsrc_err);
52685+ num_cmd_success = atomic_read_unchecked(&phba->num_cmd_success);
52686
52687 /*
52688 * The error and success command counters are global per
52689@@ -331,8 +331,8 @@ lpfc_ramp_down_queue_handler(struct lpfc_hba *phba)
52690 }
52691 }
52692 lpfc_destroy_vport_work_array(phba, vports);
52693- atomic_set(&phba->num_rsrc_err, 0);
52694- atomic_set(&phba->num_cmd_success, 0);
52695+ atomic_set_unchecked(&phba->num_rsrc_err, 0);
52696+ atomic_set_unchecked(&phba->num_cmd_success, 0);
52697 }
52698
52699 /**
52700diff --git a/drivers/scsi/mpt2sas/mpt2sas_scsih.c b/drivers/scsi/mpt2sas/mpt2sas_scsih.c
52701index 3f26147..ee8efd1 100644
52702--- a/drivers/scsi/mpt2sas/mpt2sas_scsih.c
52703+++ b/drivers/scsi/mpt2sas/mpt2sas_scsih.c
52704@@ -1509,7 +1509,7 @@ _scsih_get_resync(struct device *dev)
52705 {
52706 struct scsi_device *sdev = to_scsi_device(dev);
52707 struct MPT2SAS_ADAPTER *ioc = shost_priv(sdev->host);
52708- static struct _raid_device *raid_device;
52709+ struct _raid_device *raid_device;
52710 unsigned long flags;
52711 Mpi2RaidVolPage0_t vol_pg0;
52712 Mpi2ConfigReply_t mpi_reply;
52713@@ -1561,7 +1561,7 @@ _scsih_get_state(struct device *dev)
52714 {
52715 struct scsi_device *sdev = to_scsi_device(dev);
52716 struct MPT2SAS_ADAPTER *ioc = shost_priv(sdev->host);
52717- static struct _raid_device *raid_device;
52718+ struct _raid_device *raid_device;
52719 unsigned long flags;
52720 Mpi2RaidVolPage0_t vol_pg0;
52721 Mpi2ConfigReply_t mpi_reply;
52722@@ -6641,7 +6641,7 @@ _scsih_sas_ir_operation_status_event(struct MPT2SAS_ADAPTER *ioc,
52723 Mpi2EventDataIrOperationStatus_t *event_data =
52724 (Mpi2EventDataIrOperationStatus_t *)
52725 fw_event->event_data;
52726- static struct _raid_device *raid_device;
52727+ struct _raid_device *raid_device;
52728 unsigned long flags;
52729 u16 handle;
52730
52731@@ -7112,7 +7112,7 @@ _scsih_scan_for_devices_after_reset(struct MPT2SAS_ADAPTER *ioc)
52732 u64 sas_address;
52733 struct _sas_device *sas_device;
52734 struct _sas_node *expander_device;
52735- static struct _raid_device *raid_device;
52736+ struct _raid_device *raid_device;
52737 u8 retry_count;
52738 unsigned long flags;
52739
52740diff --git a/drivers/scsi/pmcraid.c b/drivers/scsi/pmcraid.c
52741index ed31d8c..ab856b3 100644
52742--- a/drivers/scsi/pmcraid.c
52743+++ b/drivers/scsi/pmcraid.c
52744@@ -200,8 +200,8 @@ static int pmcraid_slave_alloc(struct scsi_device *scsi_dev)
52745 res->scsi_dev = scsi_dev;
52746 scsi_dev->hostdata = res;
52747 res->change_detected = 0;
52748- atomic_set(&res->read_failures, 0);
52749- atomic_set(&res->write_failures, 0);
52750+ atomic_set_unchecked(&res->read_failures, 0);
52751+ atomic_set_unchecked(&res->write_failures, 0);
52752 rc = 0;
52753 }
52754 spin_unlock_irqrestore(&pinstance->resource_lock, lock_flags);
52755@@ -2640,9 +2640,9 @@ static int pmcraid_error_handler(struct pmcraid_cmd *cmd)
52756
52757 /* If this was a SCSI read/write command keep count of errors */
52758 if (SCSI_CMD_TYPE(scsi_cmd->cmnd[0]) == SCSI_READ_CMD)
52759- atomic_inc(&res->read_failures);
52760+ atomic_inc_unchecked(&res->read_failures);
52761 else if (SCSI_CMD_TYPE(scsi_cmd->cmnd[0]) == SCSI_WRITE_CMD)
52762- atomic_inc(&res->write_failures);
52763+ atomic_inc_unchecked(&res->write_failures);
52764
52765 if (!RES_IS_GSCSI(res->cfg_entry) &&
52766 masked_ioasc != PMCRAID_IOASC_HW_DEVICE_BUS_STATUS_ERROR) {
52767@@ -3468,7 +3468,7 @@ static int pmcraid_queuecommand_lck(
52768 * block of scsi_cmd which is re-used (e.g. cancel/abort), which uses
52769 * hrrq_id assigned here in queuecommand
52770 */
52771- ioarcb->hrrq_id = atomic_add_return(1, &(pinstance->last_message_id)) %
52772+ ioarcb->hrrq_id = atomic_add_return_unchecked(1, &(pinstance->last_message_id)) %
52773 pinstance->num_hrrq;
52774 cmd->cmd_done = pmcraid_io_done;
52775
52776@@ -3782,7 +3782,7 @@ static long pmcraid_ioctl_passthrough(
52777 * block of scsi_cmd which is re-used (e.g. cancel/abort), which uses
52778 * hrrq_id assigned here in queuecommand
52779 */
52780- ioarcb->hrrq_id = atomic_add_return(1, &(pinstance->last_message_id)) %
52781+ ioarcb->hrrq_id = atomic_add_return_unchecked(1, &(pinstance->last_message_id)) %
52782 pinstance->num_hrrq;
52783
52784 if (request_size) {
52785@@ -4420,7 +4420,7 @@ static void pmcraid_worker_function(struct work_struct *workp)
52786
52787 pinstance = container_of(workp, struct pmcraid_instance, worker_q);
52788 /* add resources only after host is added into system */
52789- if (!atomic_read(&pinstance->expose_resources))
52790+ if (!atomic_read_unchecked(&pinstance->expose_resources))
52791 return;
52792
52793 fw_version = be16_to_cpu(pinstance->inq_data->fw_version);
52794@@ -5237,8 +5237,8 @@ static int pmcraid_init_instance(struct pci_dev *pdev, struct Scsi_Host *host,
52795 init_waitqueue_head(&pinstance->reset_wait_q);
52796
52797 atomic_set(&pinstance->outstanding_cmds, 0);
52798- atomic_set(&pinstance->last_message_id, 0);
52799- atomic_set(&pinstance->expose_resources, 0);
52800+ atomic_set_unchecked(&pinstance->last_message_id, 0);
52801+ atomic_set_unchecked(&pinstance->expose_resources, 0);
52802
52803 INIT_LIST_HEAD(&pinstance->free_res_q);
52804 INIT_LIST_HEAD(&pinstance->used_res_q);
52805@@ -5951,7 +5951,7 @@ static int pmcraid_probe(struct pci_dev *pdev,
52806 /* Schedule worker thread to handle CCN and take care of adding and
52807 * removing devices to OS
52808 */
52809- atomic_set(&pinstance->expose_resources, 1);
52810+ atomic_set_unchecked(&pinstance->expose_resources, 1);
52811 schedule_work(&pinstance->worker_q);
52812 return rc;
52813
52814diff --git a/drivers/scsi/pmcraid.h b/drivers/scsi/pmcraid.h
52815index e1d150f..6c6df44 100644
52816--- a/drivers/scsi/pmcraid.h
52817+++ b/drivers/scsi/pmcraid.h
52818@@ -748,7 +748,7 @@ struct pmcraid_instance {
52819 struct pmcraid_isr_param hrrq_vector[PMCRAID_NUM_MSIX_VECTORS];
52820
52821 /* Message id as filled in last fired IOARCB, used to identify HRRQ */
52822- atomic_t last_message_id;
52823+ atomic_unchecked_t last_message_id;
52824
52825 /* configuration table */
52826 struct pmcraid_config_table *cfg_table;
52827@@ -777,7 +777,7 @@ struct pmcraid_instance {
52828 atomic_t outstanding_cmds;
52829
52830 /* should add/delete resources to mid-layer now ?*/
52831- atomic_t expose_resources;
52832+ atomic_unchecked_t expose_resources;
52833
52834
52835
52836@@ -813,8 +813,8 @@ struct pmcraid_resource_entry {
52837 struct pmcraid_config_table_entry_ext cfg_entry_ext;
52838 };
52839 struct scsi_device *scsi_dev; /* Link scsi_device structure */
52840- atomic_t read_failures; /* count of failed READ commands */
52841- atomic_t write_failures; /* count of failed WRITE commands */
52842+ atomic_unchecked_t read_failures; /* count of failed READ commands */
52843+ atomic_unchecked_t write_failures; /* count of failed WRITE commands */
52844
52845 /* To indicate add/delete/modify during CCN */
52846 u8 change_detected;
52847diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c
52848index 82b92c4..3178171 100644
52849--- a/drivers/scsi/qla2xxx/qla_attr.c
52850+++ b/drivers/scsi/qla2xxx/qla_attr.c
52851@@ -2192,7 +2192,7 @@ qla24xx_vport_disable(struct fc_vport *fc_vport, bool disable)
52852 return 0;
52853 }
52854
52855-struct fc_function_template qla2xxx_transport_functions = {
52856+fc_function_template_no_const qla2xxx_transport_functions = {
52857
52858 .show_host_node_name = 1,
52859 .show_host_port_name = 1,
52860@@ -2240,7 +2240,7 @@ struct fc_function_template qla2xxx_transport_functions = {
52861 .bsg_timeout = qla24xx_bsg_timeout,
52862 };
52863
52864-struct fc_function_template qla2xxx_transport_vport_functions = {
52865+fc_function_template_no_const qla2xxx_transport_vport_functions = {
52866
52867 .show_host_node_name = 1,
52868 .show_host_port_name = 1,
52869diff --git a/drivers/scsi/qla2xxx/qla_gbl.h b/drivers/scsi/qla2xxx/qla_gbl.h
52870index 7686bfe..4710893 100644
52871--- a/drivers/scsi/qla2xxx/qla_gbl.h
52872+++ b/drivers/scsi/qla2xxx/qla_gbl.h
52873@@ -571,8 +571,8 @@ extern void qla2x00_get_sym_node_name(scsi_qla_host_t *, uint8_t *, size_t);
52874 struct device_attribute;
52875 extern struct device_attribute *qla2x00_host_attrs[];
52876 struct fc_function_template;
52877-extern struct fc_function_template qla2xxx_transport_functions;
52878-extern struct fc_function_template qla2xxx_transport_vport_functions;
52879+extern fc_function_template_no_const qla2xxx_transport_functions;
52880+extern fc_function_template_no_const qla2xxx_transport_vport_functions;
52881 extern void qla2x00_alloc_sysfs_attr(scsi_qla_host_t *);
52882 extern void qla2x00_free_sysfs_attr(scsi_qla_host_t *, bool);
52883 extern void qla2x00_init_host_attr(scsi_qla_host_t *);
52884diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
52885index cce1cbc..5b9f0fe 100644
52886--- a/drivers/scsi/qla2xxx/qla_os.c
52887+++ b/drivers/scsi/qla2xxx/qla_os.c
52888@@ -1435,8 +1435,10 @@ qla2x00_config_dma_addressing(struct qla_hw_data *ha)
52889 !pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(64))) {
52890 /* Ok, a 64bit DMA mask is applicable. */
52891 ha->flags.enable_64bit_addressing = 1;
52892- ha->isp_ops->calc_req_entries = qla2x00_calc_iocbs_64;
52893- ha->isp_ops->build_iocbs = qla2x00_build_scsi_iocbs_64;
52894+ pax_open_kernel();
52895+ *(void **)&ha->isp_ops->calc_req_entries = qla2x00_calc_iocbs_64;
52896+ *(void **)&ha->isp_ops->build_iocbs = qla2x00_build_scsi_iocbs_64;
52897+ pax_close_kernel();
52898 return;
52899 }
52900 }
52901diff --git a/drivers/scsi/qla4xxx/ql4_def.h b/drivers/scsi/qla4xxx/ql4_def.h
52902index 8f6d0fb..1b21097 100644
52903--- a/drivers/scsi/qla4xxx/ql4_def.h
52904+++ b/drivers/scsi/qla4xxx/ql4_def.h
52905@@ -305,7 +305,7 @@ struct ddb_entry {
52906 * (4000 only) */
52907 atomic_t relogin_timer; /* Max Time to wait for
52908 * relogin to complete */
52909- atomic_t relogin_retry_count; /* Num of times relogin has been
52910+ atomic_unchecked_t relogin_retry_count; /* Num of times relogin has been
52911 * retried */
52912 uint32_t default_time2wait; /* Default Min time between
52913 * relogins (+aens) */
52914diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c
52915index 6d25879..3031a9f 100644
52916--- a/drivers/scsi/qla4xxx/ql4_os.c
52917+++ b/drivers/scsi/qla4xxx/ql4_os.c
52918@@ -4491,12 +4491,12 @@ static void qla4xxx_check_relogin_flash_ddb(struct iscsi_cls_session *cls_sess)
52919 */
52920 if (!iscsi_is_session_online(cls_sess)) {
52921 /* Reset retry relogin timer */
52922- atomic_inc(&ddb_entry->relogin_retry_count);
52923+ atomic_inc_unchecked(&ddb_entry->relogin_retry_count);
52924 DEBUG2(ql4_printk(KERN_INFO, ha,
52925 "%s: index[%d] relogin timed out-retrying"
52926 " relogin (%d), retry (%d)\n", __func__,
52927 ddb_entry->fw_ddb_index,
52928- atomic_read(&ddb_entry->relogin_retry_count),
52929+ atomic_read_unchecked(&ddb_entry->relogin_retry_count),
52930 ddb_entry->default_time2wait + 4));
52931 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
52932 atomic_set(&ddb_entry->retry_relogin_timer,
52933@@ -6604,7 +6604,7 @@ static void qla4xxx_setup_flash_ddb_entry(struct scsi_qla_host *ha,
52934
52935 atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY);
52936 atomic_set(&ddb_entry->relogin_timer, 0);
52937- atomic_set(&ddb_entry->relogin_retry_count, 0);
52938+ atomic_set_unchecked(&ddb_entry->relogin_retry_count, 0);
52939 def_timeout = le16_to_cpu(ddb_entry->fw_ddb_entry.def_timeout);
52940 ddb_entry->default_relogin_timeout =
52941 (def_timeout > LOGIN_TOV) && (def_timeout < LOGIN_TOV * 10) ?
52942diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c
52943index c9c3b57..22a8e41 100644
52944--- a/drivers/scsi/scsi.c
52945+++ b/drivers/scsi/scsi.c
52946@@ -637,7 +637,7 @@ void scsi_finish_command(struct scsi_cmnd *cmd)
52947
52948 good_bytes = scsi_bufflen(cmd);
52949 if (cmd->request->cmd_type != REQ_TYPE_BLOCK_PC) {
52950- int old_good_bytes = good_bytes;
52951+ unsigned int old_good_bytes = good_bytes;
52952 drv = scsi_cmd_to_driver(cmd);
52953 if (drv->done)
52954 good_bytes = drv->done(cmd);
52955diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
52956index b1a2631..5bcd9c8 100644
52957--- a/drivers/scsi/scsi_lib.c
52958+++ b/drivers/scsi/scsi_lib.c
52959@@ -1597,7 +1597,7 @@ static void scsi_kill_request(struct request *req, struct request_queue *q)
52960 shost = sdev->host;
52961 scsi_init_cmd_errh(cmd);
52962 cmd->result = DID_NO_CONNECT << 16;
52963- atomic_inc(&cmd->device->iorequest_cnt);
52964+ atomic_inc_unchecked(&cmd->device->iorequest_cnt);
52965
52966 /*
52967 * SCSI request completion path will do scsi_device_unbusy(),
52968@@ -1620,9 +1620,9 @@ static void scsi_softirq_done(struct request *rq)
52969
52970 INIT_LIST_HEAD(&cmd->eh_entry);
52971
52972- atomic_inc(&cmd->device->iodone_cnt);
52973+ atomic_inc_unchecked(&cmd->device->iodone_cnt);
52974 if (cmd->result)
52975- atomic_inc(&cmd->device->ioerr_cnt);
52976+ atomic_inc_unchecked(&cmd->device->ioerr_cnt);
52977
52978 disposition = scsi_decide_disposition(cmd);
52979 if (disposition != SUCCESS &&
52980@@ -1663,7 +1663,7 @@ static int scsi_dispatch_cmd(struct scsi_cmnd *cmd)
52981 struct Scsi_Host *host = cmd->device->host;
52982 int rtn = 0;
52983
52984- atomic_inc(&cmd->device->iorequest_cnt);
52985+ atomic_inc_unchecked(&cmd->device->iorequest_cnt);
52986
52987 /* check if the device is still usable */
52988 if (unlikely(cmd->device->sdev_state == SDEV_DEL)) {
52989diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c
52990index 1ac38e7..6acc656 100644
52991--- a/drivers/scsi/scsi_sysfs.c
52992+++ b/drivers/scsi/scsi_sysfs.c
52993@@ -788,7 +788,7 @@ show_iostat_##field(struct device *dev, struct device_attribute *attr, \
52994 char *buf) \
52995 { \
52996 struct scsi_device *sdev = to_scsi_device(dev); \
52997- unsigned long long count = atomic_read(&sdev->field); \
52998+ unsigned long long count = atomic_read_unchecked(&sdev->field); \
52999 return snprintf(buf, 20, "0x%llx\n", count); \
53000 } \
53001 static DEVICE_ATTR(field, S_IRUGO, show_iostat_##field, NULL)
53002diff --git a/drivers/scsi/scsi_transport_fc.c b/drivers/scsi/scsi_transport_fc.c
53003index 5d6f348..18778a6b 100644
53004--- a/drivers/scsi/scsi_transport_fc.c
53005+++ b/drivers/scsi/scsi_transport_fc.c
53006@@ -501,7 +501,7 @@ static DECLARE_TRANSPORT_CLASS(fc_vport_class,
53007 * Netlink Infrastructure
53008 */
53009
53010-static atomic_t fc_event_seq;
53011+static atomic_unchecked_t fc_event_seq;
53012
53013 /**
53014 * fc_get_event_number - Obtain the next sequential FC event number
53015@@ -514,7 +514,7 @@ static atomic_t fc_event_seq;
53016 u32
53017 fc_get_event_number(void)
53018 {
53019- return atomic_add_return(1, &fc_event_seq);
53020+ return atomic_add_return_unchecked(1, &fc_event_seq);
53021 }
53022 EXPORT_SYMBOL(fc_get_event_number);
53023
53024@@ -658,7 +658,7 @@ static __init int fc_transport_init(void)
53025 {
53026 int error;
53027
53028- atomic_set(&fc_event_seq, 0);
53029+ atomic_set_unchecked(&fc_event_seq, 0);
53030
53031 error = transport_class_register(&fc_host_class);
53032 if (error)
53033@@ -848,7 +848,7 @@ static int fc_str_to_dev_loss(const char *buf, unsigned long *val)
53034 char *cp;
53035
53036 *val = simple_strtoul(buf, &cp, 0);
53037- if ((*cp && (*cp != '\n')) || (*val < 0))
53038+ if (*cp && (*cp != '\n'))
53039 return -EINVAL;
53040 /*
53041 * Check for overflow; dev_loss_tmo is u32
53042diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c
53043index 67d43e3..8cee73c 100644
53044--- a/drivers/scsi/scsi_transport_iscsi.c
53045+++ b/drivers/scsi/scsi_transport_iscsi.c
53046@@ -79,7 +79,7 @@ struct iscsi_internal {
53047 struct transport_container session_cont;
53048 };
53049
53050-static atomic_t iscsi_session_nr; /* sysfs session id for next new session */
53051+static atomic_unchecked_t iscsi_session_nr; /* sysfs session id for next new session */
53052 static struct workqueue_struct *iscsi_eh_timer_workq;
53053
53054 static DEFINE_IDA(iscsi_sess_ida);
53055@@ -2071,7 +2071,7 @@ int iscsi_add_session(struct iscsi_cls_session *session, unsigned int target_id)
53056 int err;
53057
53058 ihost = shost->shost_data;
53059- session->sid = atomic_add_return(1, &iscsi_session_nr);
53060+ session->sid = atomic_add_return_unchecked(1, &iscsi_session_nr);
53061
53062 if (target_id == ISCSI_MAX_TARGET) {
53063 id = ida_simple_get(&iscsi_sess_ida, 0, 0, GFP_KERNEL);
53064@@ -4515,7 +4515,7 @@ static __init int iscsi_transport_init(void)
53065 printk(KERN_INFO "Loading iSCSI transport class v%s.\n",
53066 ISCSI_TRANSPORT_VERSION);
53067
53068- atomic_set(&iscsi_session_nr, 0);
53069+ atomic_set_unchecked(&iscsi_session_nr, 0);
53070
53071 err = class_register(&iscsi_transport_class);
53072 if (err)
53073diff --git a/drivers/scsi/scsi_transport_srp.c b/drivers/scsi/scsi_transport_srp.c
53074index ae45bd9..c32a586 100644
53075--- a/drivers/scsi/scsi_transport_srp.c
53076+++ b/drivers/scsi/scsi_transport_srp.c
53077@@ -35,7 +35,7 @@
53078 #include "scsi_priv.h"
53079
53080 struct srp_host_attrs {
53081- atomic_t next_port_id;
53082+ atomic_unchecked_t next_port_id;
53083 };
53084 #define to_srp_host_attrs(host) ((struct srp_host_attrs *)(host)->shost_data)
53085
53086@@ -100,7 +100,7 @@ static int srp_host_setup(struct transport_container *tc, struct device *dev,
53087 struct Scsi_Host *shost = dev_to_shost(dev);
53088 struct srp_host_attrs *srp_host = to_srp_host_attrs(shost);
53089
53090- atomic_set(&srp_host->next_port_id, 0);
53091+ atomic_set_unchecked(&srp_host->next_port_id, 0);
53092 return 0;
53093 }
53094
53095@@ -734,7 +734,7 @@ struct srp_rport *srp_rport_add(struct Scsi_Host *shost,
53096 rport_fast_io_fail_timedout);
53097 INIT_DELAYED_WORK(&rport->dev_loss_work, rport_dev_loss_timedout);
53098
53099- id = atomic_inc_return(&to_srp_host_attrs(shost)->next_port_id);
53100+ id = atomic_inc_return_unchecked(&to_srp_host_attrs(shost)->next_port_id);
53101 dev_set_name(&rport->dev, "port-%d:%d", shost->host_no, id);
53102
53103 transport_setup_device(&rport->dev);
53104diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
53105index a661d33..1b233fa 100644
53106--- a/drivers/scsi/sd.c
53107+++ b/drivers/scsi/sd.c
53108@@ -111,7 +111,7 @@ static int sd_resume(struct device *);
53109 static void sd_rescan(struct device *);
53110 static int sd_init_command(struct scsi_cmnd *SCpnt);
53111 static void sd_uninit_command(struct scsi_cmnd *SCpnt);
53112-static int sd_done(struct scsi_cmnd *);
53113+static unsigned int sd_done(struct scsi_cmnd *);
53114 static int sd_eh_action(struct scsi_cmnd *, int);
53115 static void sd_read_capacity(struct scsi_disk *sdkp, unsigned char *buffer);
53116 static void scsi_disk_release(struct device *cdev);
53117@@ -1670,7 +1670,7 @@ static unsigned int sd_completed_bytes(struct scsi_cmnd *scmd)
53118 *
53119 * Note: potentially run from within an ISR. Must not block.
53120 **/
53121-static int sd_done(struct scsi_cmnd *SCpnt)
53122+static unsigned int sd_done(struct scsi_cmnd *SCpnt)
53123 {
53124 int result = SCpnt->result;
53125 unsigned int good_bytes = result ? 0 : scsi_bufflen(SCpnt);
53126@@ -2997,7 +2997,7 @@ static int sd_probe(struct device *dev)
53127 sdkp->disk = gd;
53128 sdkp->index = index;
53129 atomic_set(&sdkp->openers, 0);
53130- atomic_set(&sdkp->device->ioerr_cnt, 0);
53131+ atomic_set_unchecked(&sdkp->device->ioerr_cnt, 0);
53132
53133 if (!sdp->request_queue->rq_timeout) {
53134 if (sdp->type != TYPE_MOD)
53135diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
53136index 2270bd5..98408a5 100644
53137--- a/drivers/scsi/sg.c
53138+++ b/drivers/scsi/sg.c
53139@@ -1083,7 +1083,7 @@ sg_ioctl(struct file *filp, unsigned int cmd_in, unsigned long arg)
53140 sdp->disk->disk_name,
53141 MKDEV(SCSI_GENERIC_MAJOR, sdp->index),
53142 NULL,
53143- (char *)arg);
53144+ (char __user *)arg);
53145 case BLKTRACESTART:
53146 return blk_trace_startstop(sdp->device->request_queue, 1);
53147 case BLKTRACESTOP:
53148diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c
53149index 8bd54a6..dd037a5 100644
53150--- a/drivers/scsi/sr.c
53151+++ b/drivers/scsi/sr.c
53152@@ -80,7 +80,7 @@ static DEFINE_MUTEX(sr_mutex);
53153 static int sr_probe(struct device *);
53154 static int sr_remove(struct device *);
53155 static int sr_init_command(struct scsi_cmnd *SCpnt);
53156-static int sr_done(struct scsi_cmnd *);
53157+static unsigned int sr_done(struct scsi_cmnd *);
53158 static int sr_runtime_suspend(struct device *dev);
53159
53160 static struct dev_pm_ops sr_pm_ops = {
53161@@ -312,11 +312,11 @@ do_tur:
53162 * It will be notified on the end of a SCSI read / write, and will take one
53163 * of several actions based on success or failure.
53164 */
53165-static int sr_done(struct scsi_cmnd *SCpnt)
53166+static unsigned int sr_done(struct scsi_cmnd *SCpnt)
53167 {
53168 int result = SCpnt->result;
53169- int this_count = scsi_bufflen(SCpnt);
53170- int good_bytes = (result == 0 ? this_count : 0);
53171+ unsigned int this_count = scsi_bufflen(SCpnt);
53172+ unsigned int good_bytes = (result == 0 ? this_count : 0);
53173 int block_sectors = 0;
53174 long error_sector;
53175 struct scsi_cd *cd = scsi_cd(SCpnt->request->rq_disk);
53176diff --git a/drivers/soc/tegra/fuse/fuse-tegra.c b/drivers/soc/tegra/fuse/fuse-tegra.c
53177index c0d660f..24a5854 100644
53178--- a/drivers/soc/tegra/fuse/fuse-tegra.c
53179+++ b/drivers/soc/tegra/fuse/fuse-tegra.c
53180@@ -71,7 +71,7 @@ static ssize_t fuse_read(struct file *fd, struct kobject *kobj,
53181 return i;
53182 }
53183
53184-static struct bin_attribute fuse_bin_attr = {
53185+static bin_attribute_no_const fuse_bin_attr = {
53186 .attr = { .name = "fuse", .mode = S_IRUGO, },
53187 .read = fuse_read,
53188 };
53189diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
53190index 57a1950..ae54e21 100644
53191--- a/drivers/spi/spi.c
53192+++ b/drivers/spi/spi.c
53193@@ -2307,7 +2307,7 @@ int spi_bus_unlock(struct spi_master *master)
53194 EXPORT_SYMBOL_GPL(spi_bus_unlock);
53195
53196 /* portable code must never pass more than 32 bytes */
53197-#define SPI_BUFSIZ max(32, SMP_CACHE_BYTES)
53198+#define SPI_BUFSIZ max(32UL, SMP_CACHE_BYTES)
53199
53200 static u8 *buf;
53201
53202diff --git a/drivers/staging/android/timed_output.c b/drivers/staging/android/timed_output.c
53203index b41429f..2de5373 100644
53204--- a/drivers/staging/android/timed_output.c
53205+++ b/drivers/staging/android/timed_output.c
53206@@ -25,7 +25,7 @@
53207 #include "timed_output.h"
53208
53209 static struct class *timed_output_class;
53210-static atomic_t device_count;
53211+static atomic_unchecked_t device_count;
53212
53213 static ssize_t enable_show(struct device *dev, struct device_attribute *attr,
53214 char *buf)
53215@@ -65,7 +65,7 @@ static int create_timed_output_class(void)
53216 timed_output_class = class_create(THIS_MODULE, "timed_output");
53217 if (IS_ERR(timed_output_class))
53218 return PTR_ERR(timed_output_class);
53219- atomic_set(&device_count, 0);
53220+ atomic_set_unchecked(&device_count, 0);
53221 timed_output_class->dev_groups = timed_output_groups;
53222 }
53223
53224@@ -83,7 +83,7 @@ int timed_output_dev_register(struct timed_output_dev *tdev)
53225 if (ret < 0)
53226 return ret;
53227
53228- tdev->index = atomic_inc_return(&device_count);
53229+ tdev->index = atomic_inc_return_unchecked(&device_count);
53230 tdev->dev = device_create(timed_output_class, NULL,
53231 MKDEV(0, tdev->index), NULL, "%s", tdev->name);
53232 if (IS_ERR(tdev->dev))
53233diff --git a/drivers/staging/comedi/comedi_fops.c b/drivers/staging/comedi/comedi_fops.c
53234index 727640e..55bf61c 100644
53235--- a/drivers/staging/comedi/comedi_fops.c
53236+++ b/drivers/staging/comedi/comedi_fops.c
53237@@ -297,8 +297,8 @@ static void comedi_file_reset(struct file *file)
53238 }
53239 cfp->last_attached = dev->attached;
53240 cfp->last_detach_count = dev->detach_count;
53241- ACCESS_ONCE(cfp->read_subdev) = read_s;
53242- ACCESS_ONCE(cfp->write_subdev) = write_s;
53243+ ACCESS_ONCE_RW(cfp->read_subdev) = read_s;
53244+ ACCESS_ONCE_RW(cfp->write_subdev) = write_s;
53245 }
53246
53247 static void comedi_file_check(struct file *file)
53248@@ -1924,7 +1924,7 @@ static int do_setrsubd_ioctl(struct comedi_device *dev, unsigned long arg,
53249 !(s_old->async->cmd.flags & CMDF_WRITE))
53250 return -EBUSY;
53251
53252- ACCESS_ONCE(cfp->read_subdev) = s_new;
53253+ ACCESS_ONCE_RW(cfp->read_subdev) = s_new;
53254 return 0;
53255 }
53256
53257@@ -1966,7 +1966,7 @@ static int do_setwsubd_ioctl(struct comedi_device *dev, unsigned long arg,
53258 (s_old->async->cmd.flags & CMDF_WRITE))
53259 return -EBUSY;
53260
53261- ACCESS_ONCE(cfp->write_subdev) = s_new;
53262+ ACCESS_ONCE_RW(cfp->write_subdev) = s_new;
53263 return 0;
53264 }
53265
53266diff --git a/drivers/staging/fbtft/fbtft-core.c b/drivers/staging/fbtft/fbtft-core.c
53267index 37dcf7e..f3c2016 100644
53268--- a/drivers/staging/fbtft/fbtft-core.c
53269+++ b/drivers/staging/fbtft/fbtft-core.c
53270@@ -689,7 +689,7 @@ struct fb_info *fbtft_framebuffer_alloc(struct fbtft_display *display,
53271 {
53272 struct fb_info *info;
53273 struct fbtft_par *par;
53274- struct fb_ops *fbops = NULL;
53275+ fb_ops_no_const *fbops = NULL;
53276 struct fb_deferred_io *fbdefio = NULL;
53277 struct fbtft_platform_data *pdata = dev->platform_data;
53278 u8 *vmem = NULL;
53279diff --git a/drivers/staging/fbtft/fbtft.h b/drivers/staging/fbtft/fbtft.h
53280index 0dbf3f9..fed0063 100644
53281--- a/drivers/staging/fbtft/fbtft.h
53282+++ b/drivers/staging/fbtft/fbtft.h
53283@@ -106,7 +106,7 @@ struct fbtft_ops {
53284
53285 int (*set_var)(struct fbtft_par *par);
53286 int (*set_gamma)(struct fbtft_par *par, unsigned long *curves);
53287-};
53288+} __no_const;
53289
53290 /**
53291 * struct fbtft_display - Describes the display properties
53292diff --git a/drivers/staging/gdm724x/gdm_tty.c b/drivers/staging/gdm724x/gdm_tty.c
53293index 001348c..cfaac8a 100644
53294--- a/drivers/staging/gdm724x/gdm_tty.c
53295+++ b/drivers/staging/gdm724x/gdm_tty.c
53296@@ -44,7 +44,7 @@
53297 #define gdm_tty_send_control(n, r, v, d, l) (\
53298 n->tty_dev->send_control(n->tty_dev->priv_dev, r, v, d, l))
53299
53300-#define GDM_TTY_READY(gdm) (gdm && gdm->tty_dev && gdm->port.count)
53301+#define GDM_TTY_READY(gdm) (gdm && gdm->tty_dev && atomic_read(&gdm->port.count))
53302
53303 static struct tty_driver *gdm_driver[TTY_MAX_COUNT];
53304 static struct gdm *gdm_table[TTY_MAX_COUNT][GDM_TTY_MINOR];
53305diff --git a/drivers/staging/i2o/i2o.h b/drivers/staging/i2o/i2o.h
53306index d23c3c2..eb63c81 100644
53307--- a/drivers/staging/i2o/i2o.h
53308+++ b/drivers/staging/i2o/i2o.h
53309@@ -565,7 +565,7 @@ struct i2o_controller {
53310 struct i2o_device *exec; /* Executive */
53311 #if BITS_PER_LONG == 64
53312 spinlock_t context_list_lock; /* lock for context_list */
53313- atomic_t context_list_counter; /* needed for unique contexts */
53314+ atomic_unchecked_t context_list_counter; /* needed for unique contexts */
53315 struct list_head context_list; /* list of context id's
53316 and pointers */
53317 #endif
53318diff --git a/drivers/staging/i2o/i2o_proc.c b/drivers/staging/i2o/i2o_proc.c
53319index ad84f33..c5bdf65 100644
53320--- a/drivers/staging/i2o/i2o_proc.c
53321+++ b/drivers/staging/i2o/i2o_proc.c
53322@@ -255,12 +255,6 @@ static char *scsi_devices[] = {
53323 "Array Controller Device"
53324 };
53325
53326-static char *chtostr(char *tmp, u8 *chars, int n)
53327-{
53328- tmp[0] = 0;
53329- return strncat(tmp, (char *)chars, n);
53330-}
53331-
53332 static int i2o_report_query_status(struct seq_file *seq, int block_status,
53333 char *group)
53334 {
53335@@ -707,9 +701,9 @@ static int i2o_seq_show_status(struct seq_file *seq, void *v)
53336 static int i2o_seq_show_hw(struct seq_file *seq, void *v)
53337 {
53338 struct i2o_controller *c = (struct i2o_controller *)seq->private;
53339- static u32 work32[5];
53340- static u8 *work8 = (u8 *) work32;
53341- static u16 *work16 = (u16 *) work32;
53342+ u32 work32[5];
53343+ u8 *work8 = (u8 *) work32;
53344+ u16 *work16 = (u16 *) work32;
53345 int token;
53346 u32 hwcap;
53347
53348@@ -790,7 +784,6 @@ static int i2o_seq_show_ddm_table(struct seq_file *seq, void *v)
53349 } *result;
53350
53351 i2o_exec_execute_ddm_table ddm_table;
53352- char tmp[28 + 1];
53353
53354 result = kmalloc(sizeof(*result), GFP_KERNEL);
53355 if (!result)
53356@@ -825,8 +818,7 @@ static int i2o_seq_show_ddm_table(struct seq_file *seq, void *v)
53357
53358 seq_printf(seq, "%-#7x", ddm_table.i2o_vendor_id);
53359 seq_printf(seq, "%-#8x", ddm_table.module_id);
53360- seq_printf(seq, "%-29s",
53361- chtostr(tmp, ddm_table.module_name_version, 28));
53362+ seq_printf(seq, "%-.28s", ddm_table.module_name_version);
53363 seq_printf(seq, "%9d ", ddm_table.data_size);
53364 seq_printf(seq, "%8d", ddm_table.code_size);
53365
53366@@ -893,7 +885,6 @@ static int i2o_seq_show_drivers_stored(struct seq_file *seq, void *v)
53367
53368 i2o_driver_result_table *result;
53369 i2o_driver_store_table *dst;
53370- char tmp[28 + 1];
53371
53372 result = kmalloc(sizeof(i2o_driver_result_table), GFP_KERNEL);
53373 if (result == NULL)
53374@@ -928,9 +919,8 @@ static int i2o_seq_show_drivers_stored(struct seq_file *seq, void *v)
53375
53376 seq_printf(seq, "%-#7x", dst->i2o_vendor_id);
53377 seq_printf(seq, "%-#8x", dst->module_id);
53378- seq_printf(seq, "%-29s",
53379- chtostr(tmp, dst->module_name_version, 28));
53380- seq_printf(seq, "%-9s", chtostr(tmp, dst->date, 8));
53381+ seq_printf(seq, "%-.28s", dst->module_name_version);
53382+ seq_printf(seq, "%-.8s", dst->date);
53383 seq_printf(seq, "%8d ", dst->module_size);
53384 seq_printf(seq, "%8d ", dst->mpb_size);
53385 seq_printf(seq, "0x%04x", dst->module_flags);
53386@@ -1246,11 +1236,10 @@ static int i2o_seq_show_authorized_users(struct seq_file *seq, void *v)
53387 static int i2o_seq_show_dev_identity(struct seq_file *seq, void *v)
53388 {
53389 struct i2o_device *d = (struct i2o_device *)seq->private;
53390- static u32 work32[128]; // allow for "stuff" + up to 256 byte (max) serial number
53391+ u32 work32[128]; // allow for "stuff" + up to 256 byte (max) serial number
53392 // == (allow) 512d bytes (max)
53393- static u16 *work16 = (u16 *) work32;
53394+ u16 *work16 = (u16 *) work32;
53395 int token;
53396- char tmp[16 + 1];
53397
53398 token = i2o_parm_field_get(d, 0xF100, -1, &work32, sizeof(work32));
53399
53400@@ -1262,14 +1251,10 @@ static int i2o_seq_show_dev_identity(struct seq_file *seq, void *v)
53401 seq_printf(seq, "Device Class : %s\n", i2o_get_class_name(work16[0]));
53402 seq_printf(seq, "Owner TID : %0#5x\n", work16[2]);
53403 seq_printf(seq, "Parent TID : %0#5x\n", work16[3]);
53404- seq_printf(seq, "Vendor info : %s\n",
53405- chtostr(tmp, (u8 *) (work32 + 2), 16));
53406- seq_printf(seq, "Product info : %s\n",
53407- chtostr(tmp, (u8 *) (work32 + 6), 16));
53408- seq_printf(seq, "Description : %s\n",
53409- chtostr(tmp, (u8 *) (work32 + 10), 16));
53410- seq_printf(seq, "Product rev. : %s\n",
53411- chtostr(tmp, (u8 *) (work32 + 14), 8));
53412+ seq_printf(seq, "Vendor info : %.16s\n", (u8 *) (work32 + 2));
53413+ seq_printf(seq, "Product info : %.16s\n", (u8 *) (work32 + 6));
53414+ seq_printf(seq, "Description : %.16s\n", (u8 *) (work32 + 10));
53415+ seq_printf(seq, "Product rev. : %.8s\n", (u8 *) (work32 + 14));
53416
53417 seq_printf(seq, "Serial number : ");
53418 print_serial_number(seq, (u8 *) (work32 + 16),
53419@@ -1306,8 +1291,6 @@ static int i2o_seq_show_ddm_identity(struct seq_file *seq, void *v)
53420 u8 pad[256]; // allow up to 256 byte (max) serial number
53421 } result;
53422
53423- char tmp[24 + 1];
53424-
53425 token = i2o_parm_field_get(d, 0xF101, -1, &result, sizeof(result));
53426
53427 if (token < 0) {
53428@@ -1316,10 +1299,8 @@ static int i2o_seq_show_ddm_identity(struct seq_file *seq, void *v)
53429 }
53430
53431 seq_printf(seq, "Registering DDM TID : 0x%03x\n", result.ddm_tid);
53432- seq_printf(seq, "Module name : %s\n",
53433- chtostr(tmp, result.module_name, 24));
53434- seq_printf(seq, "Module revision : %s\n",
53435- chtostr(tmp, result.module_rev, 8));
53436+ seq_printf(seq, "Module name : %.24s\n", result.module_name);
53437+ seq_printf(seq, "Module revision : %.8s\n", result.module_rev);
53438
53439 seq_printf(seq, "Serial number : ");
53440 print_serial_number(seq, result.serial_number, sizeof(result) - 36);
53441@@ -1343,8 +1324,6 @@ static int i2o_seq_show_uinfo(struct seq_file *seq, void *v)
53442 u8 instance_number[4];
53443 } result;
53444
53445- char tmp[64 + 1];
53446-
53447 token = i2o_parm_field_get(d, 0xF102, -1, &result, sizeof(result));
53448
53449 if (token < 0) {
53450@@ -1352,14 +1331,10 @@ static int i2o_seq_show_uinfo(struct seq_file *seq, void *v)
53451 return 0;
53452 }
53453
53454- seq_printf(seq, "Device name : %s\n",
53455- chtostr(tmp, result.device_name, 64));
53456- seq_printf(seq, "Service name : %s\n",
53457- chtostr(tmp, result.service_name, 64));
53458- seq_printf(seq, "Physical name : %s\n",
53459- chtostr(tmp, result.physical_location, 64));
53460- seq_printf(seq, "Instance number : %s\n",
53461- chtostr(tmp, result.instance_number, 4));
53462+ seq_printf(seq, "Device name : %.64s\n", result.device_name);
53463+ seq_printf(seq, "Service name : %.64s\n", result.service_name);
53464+ seq_printf(seq, "Physical name : %.64s\n", result.physical_location);
53465+ seq_printf(seq, "Instance number : %.4s\n", result.instance_number);
53466
53467 return 0;
53468 }
53469@@ -1368,9 +1343,9 @@ static int i2o_seq_show_uinfo(struct seq_file *seq, void *v)
53470 static int i2o_seq_show_sgl_limits(struct seq_file *seq, void *v)
53471 {
53472 struct i2o_device *d = (struct i2o_device *)seq->private;
53473- static u32 work32[12];
53474- static u16 *work16 = (u16 *) work32;
53475- static u8 *work8 = (u8 *) work32;
53476+ u32 work32[12];
53477+ u16 *work16 = (u16 *) work32;
53478+ u8 *work8 = (u8 *) work32;
53479 int token;
53480
53481 token = i2o_parm_field_get(d, 0xF103, -1, &work32, sizeof(work32));
53482diff --git a/drivers/staging/i2o/iop.c b/drivers/staging/i2o/iop.c
53483index 52334fc..d7f40b3 100644
53484--- a/drivers/staging/i2o/iop.c
53485+++ b/drivers/staging/i2o/iop.c
53486@@ -111,10 +111,10 @@ u32 i2o_cntxt_list_add(struct i2o_controller * c, void *ptr)
53487
53488 spin_lock_irqsave(&c->context_list_lock, flags);
53489
53490- if (unlikely(atomic_inc_and_test(&c->context_list_counter)))
53491- atomic_inc(&c->context_list_counter);
53492+ if (unlikely(atomic_inc_and_test_unchecked(&c->context_list_counter)))
53493+ atomic_inc_unchecked(&c->context_list_counter);
53494
53495- entry->context = atomic_read(&c->context_list_counter);
53496+ entry->context = atomic_read_unchecked(&c->context_list_counter);
53497
53498 list_add(&entry->list, &c->context_list);
53499
53500@@ -1076,7 +1076,7 @@ struct i2o_controller *i2o_iop_alloc(void)
53501
53502 #if BITS_PER_LONG == 64
53503 spin_lock_init(&c->context_list_lock);
53504- atomic_set(&c->context_list_counter, 0);
53505+ atomic_set_unchecked(&c->context_list_counter, 0);
53506 INIT_LIST_HEAD(&c->context_list);
53507 #endif
53508
53509diff --git a/drivers/staging/lustre/lnet/selftest/brw_test.c b/drivers/staging/lustre/lnet/selftest/brw_test.c
53510index 463da07..e791ce9 100644
53511--- a/drivers/staging/lustre/lnet/selftest/brw_test.c
53512+++ b/drivers/staging/lustre/lnet/selftest/brw_test.c
53513@@ -488,13 +488,11 @@ brw_server_handle(struct srpc_server_rpc *rpc)
53514 return 0;
53515 }
53516
53517-sfw_test_client_ops_t brw_test_client;
53518-void brw_init_test_client(void)
53519-{
53520- brw_test_client.tso_init = brw_client_init;
53521- brw_test_client.tso_fini = brw_client_fini;
53522- brw_test_client.tso_prep_rpc = brw_client_prep_rpc;
53523- brw_test_client.tso_done_rpc = brw_client_done_rpc;
53524+sfw_test_client_ops_t brw_test_client = {
53525+ .tso_init = brw_client_init,
53526+ .tso_fini = brw_client_fini,
53527+ .tso_prep_rpc = brw_client_prep_rpc,
53528+ .tso_done_rpc = brw_client_done_rpc,
53529 };
53530
53531 srpc_service_t brw_test_service;
53532diff --git a/drivers/staging/lustre/lnet/selftest/framework.c b/drivers/staging/lustre/lnet/selftest/framework.c
53533index 5709148..ccd9e0d 100644
53534--- a/drivers/staging/lustre/lnet/selftest/framework.c
53535+++ b/drivers/staging/lustre/lnet/selftest/framework.c
53536@@ -1628,12 +1628,10 @@ static srpc_service_t sfw_services[] = {
53537
53538 extern sfw_test_client_ops_t ping_test_client;
53539 extern srpc_service_t ping_test_service;
53540-extern void ping_init_test_client(void);
53541 extern void ping_init_test_service(void);
53542
53543 extern sfw_test_client_ops_t brw_test_client;
53544 extern srpc_service_t brw_test_service;
53545-extern void brw_init_test_client(void);
53546 extern void brw_init_test_service(void);
53547
53548
53549@@ -1675,12 +1673,10 @@ sfw_startup (void)
53550 INIT_LIST_HEAD(&sfw_data.fw_zombie_rpcs);
53551 INIT_LIST_HEAD(&sfw_data.fw_zombie_sessions);
53552
53553- brw_init_test_client();
53554 brw_init_test_service();
53555 rc = sfw_register_test(&brw_test_service, &brw_test_client);
53556 LASSERT (rc == 0);
53557
53558- ping_init_test_client();
53559 ping_init_test_service();
53560 rc = sfw_register_test(&ping_test_service, &ping_test_client);
53561 LASSERT (rc == 0);
53562diff --git a/drivers/staging/lustre/lnet/selftest/ping_test.c b/drivers/staging/lustre/lnet/selftest/ping_test.c
53563index d8c0df6..5041cbb 100644
53564--- a/drivers/staging/lustre/lnet/selftest/ping_test.c
53565+++ b/drivers/staging/lustre/lnet/selftest/ping_test.c
53566@@ -211,14 +211,12 @@ ping_server_handle(struct srpc_server_rpc *rpc)
53567 return 0;
53568 }
53569
53570-sfw_test_client_ops_t ping_test_client;
53571-void ping_init_test_client(void)
53572-{
53573- ping_test_client.tso_init = ping_client_init;
53574- ping_test_client.tso_fini = ping_client_fini;
53575- ping_test_client.tso_prep_rpc = ping_client_prep_rpc;
53576- ping_test_client.tso_done_rpc = ping_client_done_rpc;
53577-}
53578+sfw_test_client_ops_t ping_test_client = {
53579+ .tso_init = ping_client_init,
53580+ .tso_fini = ping_client_fini,
53581+ .tso_prep_rpc = ping_client_prep_rpc,
53582+ .tso_done_rpc = ping_client_done_rpc,
53583+};
53584
53585 srpc_service_t ping_test_service;
53586 void ping_init_test_service(void)
53587diff --git a/drivers/staging/lustre/lustre/include/lustre_dlm.h b/drivers/staging/lustre/lustre/include/lustre_dlm.h
53588index 83bc0a9..12ba00a 100644
53589--- a/drivers/staging/lustre/lustre/include/lustre_dlm.h
53590+++ b/drivers/staging/lustre/lustre/include/lustre_dlm.h
53591@@ -1139,7 +1139,7 @@ struct ldlm_callback_suite {
53592 ldlm_completion_callback lcs_completion;
53593 ldlm_blocking_callback lcs_blocking;
53594 ldlm_glimpse_callback lcs_glimpse;
53595-};
53596+} __no_const;
53597
53598 /* ldlm_lockd.c */
53599 int ldlm_del_waiting_lock(struct ldlm_lock *lock);
53600diff --git a/drivers/staging/lustre/lustre/include/obd.h b/drivers/staging/lustre/lustre/include/obd.h
53601index 2a88b80..62e7e5f 100644
53602--- a/drivers/staging/lustre/lustre/include/obd.h
53603+++ b/drivers/staging/lustre/lustre/include/obd.h
53604@@ -1362,7 +1362,7 @@ struct md_ops {
53605 * lprocfs_alloc_md_stats() in obdclass/lprocfs_status.c. Also, add a
53606 * wrapper function in include/linux/obd_class.h.
53607 */
53608-};
53609+} __no_const;
53610
53611 struct lsm_operations {
53612 void (*lsm_free)(struct lov_stripe_md *);
53613diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_flock.c b/drivers/staging/lustre/lustre/ldlm/ldlm_flock.c
53614index a4c252f..b21acac 100644
53615--- a/drivers/staging/lustre/lustre/ldlm/ldlm_flock.c
53616+++ b/drivers/staging/lustre/lustre/ldlm/ldlm_flock.c
53617@@ -258,7 +258,7 @@ ldlm_process_flock_lock(struct ldlm_lock *req, __u64 *flags, int first_enq,
53618 int added = (mode == LCK_NL);
53619 int overlaps = 0;
53620 int splitted = 0;
53621- const struct ldlm_callback_suite null_cbs = { NULL };
53622+ const struct ldlm_callback_suite null_cbs = { };
53623
53624 CDEBUG(D_DLMTRACE,
53625 "flags %#llx owner %llu pid %u mode %u start %llu end %llu\n",
53626diff --git a/drivers/staging/lustre/lustre/libcfs/linux/linux-proc.c b/drivers/staging/lustre/lustre/libcfs/linux/linux-proc.c
53627index c539e37..743b213 100644
53628--- a/drivers/staging/lustre/lustre/libcfs/linux/linux-proc.c
53629+++ b/drivers/staging/lustre/lustre/libcfs/linux/linux-proc.c
53630@@ -237,7 +237,7 @@ static int proc_console_max_delay_cs(struct ctl_table *table, int write,
53631 loff_t *ppos)
53632 {
53633 int rc, max_delay_cs;
53634- struct ctl_table dummy = *table;
53635+ ctl_table_no_const dummy = *table;
53636 long d;
53637
53638 dummy.data = &max_delay_cs;
53639@@ -270,7 +270,7 @@ static int proc_console_min_delay_cs(struct ctl_table *table, int write,
53640 loff_t *ppos)
53641 {
53642 int rc, min_delay_cs;
53643- struct ctl_table dummy = *table;
53644+ ctl_table_no_const dummy = *table;
53645 long d;
53646
53647 dummy.data = &min_delay_cs;
53648@@ -302,7 +302,7 @@ static int proc_console_backoff(struct ctl_table *table, int write,
53649 void __user *buffer, size_t *lenp, loff_t *ppos)
53650 {
53651 int rc, backoff;
53652- struct ctl_table dummy = *table;
53653+ ctl_table_no_const dummy = *table;
53654
53655 dummy.data = &backoff;
53656 dummy.proc_handler = &proc_dointvec;
53657diff --git a/drivers/staging/lustre/lustre/libcfs/module.c b/drivers/staging/lustre/lustre/libcfs/module.c
53658index 7dc77dd..289d03e 100644
53659--- a/drivers/staging/lustre/lustre/libcfs/module.c
53660+++ b/drivers/staging/lustre/lustre/libcfs/module.c
53661@@ -313,11 +313,11 @@ out:
53662
53663
53664 struct cfs_psdev_ops libcfs_psdev_ops = {
53665- libcfs_psdev_open,
53666- libcfs_psdev_release,
53667- NULL,
53668- NULL,
53669- libcfs_ioctl
53670+ .p_open = libcfs_psdev_open,
53671+ .p_close = libcfs_psdev_release,
53672+ .p_read = NULL,
53673+ .p_write = NULL,
53674+ .p_ioctl = libcfs_ioctl
53675 };
53676
53677 extern int insert_proc(void);
53678diff --git a/drivers/staging/octeon/ethernet-rx.c b/drivers/staging/octeon/ethernet-rx.c
53679index 22667db..8b703b6 100644
53680--- a/drivers/staging/octeon/ethernet-rx.c
53681+++ b/drivers/staging/octeon/ethernet-rx.c
53682@@ -354,14 +354,14 @@ static int cvm_oct_napi_poll(struct napi_struct *napi, int budget)
53683 /* Increment RX stats for virtual ports */
53684 if (work->ipprt >= CVMX_PIP_NUM_INPUT_PORTS) {
53685 #ifdef CONFIG_64BIT
53686- atomic64_add(1,
53687+ atomic64_add_unchecked(1,
53688 (atomic64_t *)&priv->stats.rx_packets);
53689- atomic64_add(skb->len,
53690+ atomic64_add_unchecked(skb->len,
53691 (atomic64_t *)&priv->stats.rx_bytes);
53692 #else
53693- atomic_add(1,
53694+ atomic_add_unchecked(1,
53695 (atomic_t *)&priv->stats.rx_packets);
53696- atomic_add(skb->len,
53697+ atomic_add_unchecked(skb->len,
53698 (atomic_t *)&priv->stats.rx_bytes);
53699 #endif
53700 }
53701@@ -373,10 +373,10 @@ static int cvm_oct_napi_poll(struct napi_struct *napi, int budget)
53702 dev->name);
53703 */
53704 #ifdef CONFIG_64BIT
53705- atomic64_add(1,
53706+ atomic64_add_unchecked(1,
53707 (atomic64_t *)&priv->stats.rx_dropped);
53708 #else
53709- atomic_add(1,
53710+ atomic_add_unchecked(1,
53711 (atomic_t *)&priv->stats.rx_dropped);
53712 #endif
53713 dev_kfree_skb_irq(skb);
53714diff --git a/drivers/staging/octeon/ethernet.c b/drivers/staging/octeon/ethernet.c
53715index 460e854..f926452 100644
53716--- a/drivers/staging/octeon/ethernet.c
53717+++ b/drivers/staging/octeon/ethernet.c
53718@@ -241,11 +241,11 @@ static struct net_device_stats *cvm_oct_common_get_stats(struct net_device *dev)
53719 * since the RX tasklet also increments it.
53720 */
53721 #ifdef CONFIG_64BIT
53722- atomic64_add(rx_status.dropped_packets,
53723- (atomic64_t *)&priv->stats.rx_dropped);
53724+ atomic64_add_unchecked(rx_status.dropped_packets,
53725+ (atomic64_unchecked_t *)&priv->stats.rx_dropped);
53726 #else
53727- atomic_add(rx_status.dropped_packets,
53728- (atomic_t *)&priv->stats.rx_dropped);
53729+ atomic_add_unchecked(rx_status.dropped_packets,
53730+ (atomic_unchecked_t *)&priv->stats.rx_dropped);
53731 #endif
53732 }
53733
53734diff --git a/drivers/staging/rtl8188eu/include/hal_intf.h b/drivers/staging/rtl8188eu/include/hal_intf.h
53735index 3b476d8..f522d68 100644
53736--- a/drivers/staging/rtl8188eu/include/hal_intf.h
53737+++ b/drivers/staging/rtl8188eu/include/hal_intf.h
53738@@ -225,7 +225,7 @@ struct hal_ops {
53739
53740 void (*hal_notch_filter)(struct adapter *adapter, bool enable);
53741 void (*hal_reset_security_engine)(struct adapter *adapter);
53742-};
53743+} __no_const;
53744
53745 enum rt_eeprom_type {
53746 EEPROM_93C46,
53747diff --git a/drivers/staging/rtl8712/rtl871x_io.h b/drivers/staging/rtl8712/rtl871x_io.h
53748index 070cc03..6806e37 100644
53749--- a/drivers/staging/rtl8712/rtl871x_io.h
53750+++ b/drivers/staging/rtl8712/rtl871x_io.h
53751@@ -108,7 +108,7 @@ struct _io_ops {
53752 u8 *pmem);
53753 u32 (*_write_port)(struct intf_hdl *pintfhdl, u32 addr, u32 cnt,
53754 u8 *pmem);
53755-};
53756+} __no_const;
53757
53758 struct io_req {
53759 struct list_head list;
53760diff --git a/drivers/staging/unisys/visorchipset/visorchipset.h b/drivers/staging/unisys/visorchipset/visorchipset.h
53761index 98f3ba4..c6a7fce 100644
53762--- a/drivers/staging/unisys/visorchipset/visorchipset.h
53763+++ b/drivers/staging/unisys/visorchipset/visorchipset.h
53764@@ -171,7 +171,7 @@ struct visorchipset_busdev_notifiers {
53765 void (*device_resume)(ulong bus_no, ulong dev_no);
53766 int (*get_channel_info)(uuid_le type_uuid, ulong *min_size,
53767 ulong *max_size);
53768-};
53769+} __no_const;
53770
53771 /* These functions live inside visorchipset, and will be called to indicate
53772 * responses to specific events (by code outside of visorchipset).
53773@@ -186,7 +186,7 @@ struct visorchipset_busdev_responders {
53774 void (*device_destroy)(ulong bus_no, ulong dev_no, int response);
53775 void (*device_pause)(ulong bus_no, ulong dev_no, int response);
53776 void (*device_resume)(ulong bus_no, ulong dev_no, int response);
53777-};
53778+} __no_const;
53779
53780 /** Register functions (in the bus driver) to get called by visorchipset
53781 * whenever a bus or device appears for which this service partition is
53782diff --git a/drivers/target/sbp/sbp_target.c b/drivers/target/sbp/sbp_target.c
53783index 9512af6..045bf5a 100644
53784--- a/drivers/target/sbp/sbp_target.c
53785+++ b/drivers/target/sbp/sbp_target.c
53786@@ -62,7 +62,7 @@ static const u32 sbp_unit_directory_template[] = {
53787
53788 #define SESSION_MAINTENANCE_INTERVAL HZ
53789
53790-static atomic_t login_id = ATOMIC_INIT(0);
53791+static atomic_unchecked_t login_id = ATOMIC_INIT(0);
53792
53793 static void session_maintenance_work(struct work_struct *);
53794 static int sbp_run_transaction(struct fw_card *, int, int, int, int,
53795@@ -444,7 +444,7 @@ static void sbp_management_request_login(
53796 login->lun = se_lun;
53797 login->status_fifo_addr = sbp2_pointer_to_addr(&req->orb.status_fifo);
53798 login->exclusive = LOGIN_ORB_EXCLUSIVE(be32_to_cpu(req->orb.misc));
53799- login->login_id = atomic_inc_return(&login_id);
53800+ login->login_id = atomic_inc_return_unchecked(&login_id);
53801
53802 login->tgt_agt = sbp_target_agent_register(login);
53803 if (IS_ERR(login->tgt_agt)) {
53804diff --git a/drivers/target/target_core_device.c b/drivers/target/target_core_device.c
53805index 7faa6ae..ae6c410 100644
53806--- a/drivers/target/target_core_device.c
53807+++ b/drivers/target/target_core_device.c
53808@@ -1495,7 +1495,7 @@ struct se_device *target_alloc_device(struct se_hba *hba, const char *name)
53809 spin_lock_init(&dev->se_tmr_lock);
53810 spin_lock_init(&dev->qf_cmd_lock);
53811 sema_init(&dev->caw_sem, 1);
53812- atomic_set(&dev->dev_ordered_id, 0);
53813+ atomic_set_unchecked(&dev->dev_ordered_id, 0);
53814 INIT_LIST_HEAD(&dev->t10_wwn.t10_vpd_list);
53815 spin_lock_init(&dev->t10_wwn.t10_vpd_lock);
53816 INIT_LIST_HEAD(&dev->t10_pr.registration_list);
53817diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
53818index f786de0..04b643e 100644
53819--- a/drivers/target/target_core_transport.c
53820+++ b/drivers/target/target_core_transport.c
53821@@ -1168,7 +1168,7 @@ transport_check_alloc_task_attr(struct se_cmd *cmd)
53822 * Used to determine when ORDERED commands should go from
53823 * Dormant to Active status.
53824 */
53825- cmd->se_ordered_id = atomic_inc_return(&dev->dev_ordered_id);
53826+ cmd->se_ordered_id = atomic_inc_return_unchecked(&dev->dev_ordered_id);
53827 pr_debug("Allocated se_ordered_id: %u for Task Attr: 0x%02x on %s\n",
53828 cmd->se_ordered_id, cmd->sam_task_attr,
53829 dev->transport->name);
53830diff --git a/drivers/thermal/int340x_thermal/int3400_thermal.c b/drivers/thermal/int340x_thermal/int3400_thermal.c
53831index 031018e..90981a1 100644
53832--- a/drivers/thermal/int340x_thermal/int3400_thermal.c
53833+++ b/drivers/thermal/int340x_thermal/int3400_thermal.c
53834@@ -272,8 +272,10 @@ static int int3400_thermal_probe(struct platform_device *pdev)
53835 platform_set_drvdata(pdev, priv);
53836
53837 if (priv->uuid_bitmap & 1 << INT3400_THERMAL_PASSIVE_1) {
53838- int3400_thermal_ops.get_mode = int3400_thermal_get_mode;
53839- int3400_thermal_ops.set_mode = int3400_thermal_set_mode;
53840+ pax_open_kernel();
53841+ *(void **)&int3400_thermal_ops.get_mode = int3400_thermal_get_mode;
53842+ *(void **)&int3400_thermal_ops.set_mode = int3400_thermal_set_mode;
53843+ pax_close_kernel();
53844 }
53845 priv->thermal = thermal_zone_device_register("INT3400 Thermal", 0, 0,
53846 priv, &int3400_thermal_ops,
53847diff --git a/drivers/thermal/of-thermal.c b/drivers/thermal/of-thermal.c
53848index 668fb1b..2737bbe 100644
53849--- a/drivers/thermal/of-thermal.c
53850+++ b/drivers/thermal/of-thermal.c
53851@@ -31,6 +31,7 @@
53852 #include <linux/export.h>
53853 #include <linux/string.h>
53854 #include <linux/thermal.h>
53855+#include <linux/mm.h>
53856
53857 #include "thermal_core.h"
53858
53859@@ -412,9 +413,11 @@ thermal_zone_of_add_sensor(struct device_node *zone,
53860 tz->ops = ops;
53861 tz->sensor_data = data;
53862
53863- tzd->ops->get_temp = of_thermal_get_temp;
53864- tzd->ops->get_trend = of_thermal_get_trend;
53865- tzd->ops->set_emul_temp = of_thermal_set_emul_temp;
53866+ pax_open_kernel();
53867+ *(void **)&tzd->ops->get_temp = of_thermal_get_temp;
53868+ *(void **)&tzd->ops->get_trend = of_thermal_get_trend;
53869+ *(void **)&tzd->ops->set_emul_temp = of_thermal_set_emul_temp;
53870+ pax_close_kernel();
53871 mutex_unlock(&tzd->lock);
53872
53873 return tzd;
53874@@ -544,9 +547,11 @@ void thermal_zone_of_sensor_unregister(struct device *dev,
53875 return;
53876
53877 mutex_lock(&tzd->lock);
53878- tzd->ops->get_temp = NULL;
53879- tzd->ops->get_trend = NULL;
53880- tzd->ops->set_emul_temp = NULL;
53881+ pax_open_kernel();
53882+ *(void **)&tzd->ops->get_temp = NULL;
53883+ *(void **)&tzd->ops->get_trend = NULL;
53884+ *(void **)&tzd->ops->set_emul_temp = NULL;
53885+ pax_close_kernel();
53886
53887 tz->ops = NULL;
53888 tz->sensor_data = NULL;
53889diff --git a/drivers/thermal/x86_pkg_temp_thermal.c b/drivers/thermal/x86_pkg_temp_thermal.c
53890index 9ea3d9d..53e8792 100644
53891--- a/drivers/thermal/x86_pkg_temp_thermal.c
53892+++ b/drivers/thermal/x86_pkg_temp_thermal.c
53893@@ -567,7 +567,7 @@ static int pkg_temp_thermal_cpu_callback(struct notifier_block *nfb,
53894 return NOTIFY_OK;
53895 }
53896
53897-static struct notifier_block pkg_temp_thermal_notifier __refdata = {
53898+static struct notifier_block pkg_temp_thermal_notifier __refconst = {
53899 .notifier_call = pkg_temp_thermal_cpu_callback,
53900 };
53901
53902diff --git a/drivers/tty/cyclades.c b/drivers/tty/cyclades.c
53903index fd66f57..48e6376 100644
53904--- a/drivers/tty/cyclades.c
53905+++ b/drivers/tty/cyclades.c
53906@@ -1570,10 +1570,10 @@ static int cy_open(struct tty_struct *tty, struct file *filp)
53907 printk(KERN_DEBUG "cyc:cy_open ttyC%d, count = %d\n", info->line,
53908 info->port.count);
53909 #endif
53910- info->port.count++;
53911+ atomic_inc(&info->port.count);
53912 #ifdef CY_DEBUG_COUNT
53913 printk(KERN_DEBUG "cyc:cy_open (%d): incrementing count to %d\n",
53914- current->pid, info->port.count);
53915+ current->pid, atomic_read(&info->port.count));
53916 #endif
53917
53918 /*
53919@@ -3974,7 +3974,7 @@ static int cyclades_proc_show(struct seq_file *m, void *v)
53920 for (j = 0; j < cy_card[i].nports; j++) {
53921 info = &cy_card[i].ports[j];
53922
53923- if (info->port.count) {
53924+ if (atomic_read(&info->port.count)) {
53925 /* XXX is the ldisc num worth this? */
53926 struct tty_struct *tty;
53927 struct tty_ldisc *ld;
53928diff --git a/drivers/tty/hvc/hvc_console.c b/drivers/tty/hvc/hvc_console.c
53929index 4fcec1d..5a036f7 100644
53930--- a/drivers/tty/hvc/hvc_console.c
53931+++ b/drivers/tty/hvc/hvc_console.c
53932@@ -342,7 +342,7 @@ static int hvc_open(struct tty_struct *tty, struct file * filp)
53933
53934 spin_lock_irqsave(&hp->port.lock, flags);
53935 /* Check and then increment for fast path open. */
53936- if (hp->port.count++ > 0) {
53937+ if (atomic_inc_return(&hp->port.count) > 1) {
53938 spin_unlock_irqrestore(&hp->port.lock, flags);
53939 hvc_kick();
53940 return 0;
53941@@ -397,7 +397,7 @@ static void hvc_close(struct tty_struct *tty, struct file * filp)
53942
53943 spin_lock_irqsave(&hp->port.lock, flags);
53944
53945- if (--hp->port.count == 0) {
53946+ if (atomic_dec_return(&hp->port.count) == 0) {
53947 spin_unlock_irqrestore(&hp->port.lock, flags);
53948 /* We are done with the tty pointer now. */
53949 tty_port_tty_set(&hp->port, NULL);
53950@@ -419,9 +419,9 @@ static void hvc_close(struct tty_struct *tty, struct file * filp)
53951 */
53952 tty_wait_until_sent_from_close(tty, HVC_CLOSE_WAIT);
53953 } else {
53954- if (hp->port.count < 0)
53955+ if (atomic_read(&hp->port.count) < 0)
53956 printk(KERN_ERR "hvc_close %X: oops, count is %d\n",
53957- hp->vtermno, hp->port.count);
53958+ hp->vtermno, atomic_read(&hp->port.count));
53959 spin_unlock_irqrestore(&hp->port.lock, flags);
53960 }
53961 }
53962@@ -451,12 +451,12 @@ static void hvc_hangup(struct tty_struct *tty)
53963 * open->hangup case this can be called after the final close so prevent
53964 * that from happening for now.
53965 */
53966- if (hp->port.count <= 0) {
53967+ if (atomic_read(&hp->port.count) <= 0) {
53968 spin_unlock_irqrestore(&hp->port.lock, flags);
53969 return;
53970 }
53971
53972- hp->port.count = 0;
53973+ atomic_set(&hp->port.count, 0);
53974 spin_unlock_irqrestore(&hp->port.lock, flags);
53975 tty_port_tty_set(&hp->port, NULL);
53976
53977@@ -504,7 +504,7 @@ static int hvc_write(struct tty_struct *tty, const unsigned char *buf, int count
53978 return -EPIPE;
53979
53980 /* FIXME what's this (unprotected) check for? */
53981- if (hp->port.count <= 0)
53982+ if (atomic_read(&hp->port.count) <= 0)
53983 return -EIO;
53984
53985 spin_lock_irqsave(&hp->lock, flags);
53986diff --git a/drivers/tty/hvc/hvcs.c b/drivers/tty/hvc/hvcs.c
53987index 81ff7e1..dfb7b71 100644
53988--- a/drivers/tty/hvc/hvcs.c
53989+++ b/drivers/tty/hvc/hvcs.c
53990@@ -83,6 +83,7 @@
53991 #include <asm/hvcserver.h>
53992 #include <asm/uaccess.h>
53993 #include <asm/vio.h>
53994+#include <asm/local.h>
53995
53996 /*
53997 * 1.3.0 -> 1.3.1 In hvcs_open memset(..,0x00,..) instead of memset(..,0x3F,00).
53998@@ -416,7 +417,7 @@ static ssize_t hvcs_vterm_state_store(struct device *dev, struct device_attribut
53999
54000 spin_lock_irqsave(&hvcsd->lock, flags);
54001
54002- if (hvcsd->port.count > 0) {
54003+ if (atomic_read(&hvcsd->port.count) > 0) {
54004 spin_unlock_irqrestore(&hvcsd->lock, flags);
54005 printk(KERN_INFO "HVCS: vterm state unchanged. "
54006 "The hvcs device node is still in use.\n");
54007@@ -1127,7 +1128,7 @@ static int hvcs_install(struct tty_driver *driver, struct tty_struct *tty)
54008 }
54009 }
54010
54011- hvcsd->port.count = 0;
54012+ atomic_set(&hvcsd->port.count, 0);
54013 hvcsd->port.tty = tty;
54014 tty->driver_data = hvcsd;
54015
54016@@ -1180,7 +1181,7 @@ static int hvcs_open(struct tty_struct *tty, struct file *filp)
54017 unsigned long flags;
54018
54019 spin_lock_irqsave(&hvcsd->lock, flags);
54020- hvcsd->port.count++;
54021+ atomic_inc(&hvcsd->port.count);
54022 hvcsd->todo_mask |= HVCS_SCHED_READ;
54023 spin_unlock_irqrestore(&hvcsd->lock, flags);
54024
54025@@ -1216,7 +1217,7 @@ static void hvcs_close(struct tty_struct *tty, struct file *filp)
54026 hvcsd = tty->driver_data;
54027
54028 spin_lock_irqsave(&hvcsd->lock, flags);
54029- if (--hvcsd->port.count == 0) {
54030+ if (atomic_dec_and_test(&hvcsd->port.count)) {
54031
54032 vio_disable_interrupts(hvcsd->vdev);
54033
54034@@ -1241,10 +1242,10 @@ static void hvcs_close(struct tty_struct *tty, struct file *filp)
54035
54036 free_irq(irq, hvcsd);
54037 return;
54038- } else if (hvcsd->port.count < 0) {
54039+ } else if (atomic_read(&hvcsd->port.count) < 0) {
54040 printk(KERN_ERR "HVCS: vty-server@%X open_count: %d"
54041 " is missmanaged.\n",
54042- hvcsd->vdev->unit_address, hvcsd->port.count);
54043+ hvcsd->vdev->unit_address, atomic_read(&hvcsd->port.count));
54044 }
54045
54046 spin_unlock_irqrestore(&hvcsd->lock, flags);
54047@@ -1266,7 +1267,7 @@ static void hvcs_hangup(struct tty_struct * tty)
54048
54049 spin_lock_irqsave(&hvcsd->lock, flags);
54050 /* Preserve this so that we know how many kref refs to put */
54051- temp_open_count = hvcsd->port.count;
54052+ temp_open_count = atomic_read(&hvcsd->port.count);
54053
54054 /*
54055 * Don't kref put inside the spinlock because the destruction
54056@@ -1281,7 +1282,7 @@ static void hvcs_hangup(struct tty_struct * tty)
54057 tty->driver_data = NULL;
54058 hvcsd->port.tty = NULL;
54059
54060- hvcsd->port.count = 0;
54061+ atomic_set(&hvcsd->port.count, 0);
54062
54063 /* This will drop any buffered data on the floor which is OK in a hangup
54064 * scenario. */
54065@@ -1352,7 +1353,7 @@ static int hvcs_write(struct tty_struct *tty,
54066 * the middle of a write operation? This is a crummy place to do this
54067 * but we want to keep it all in the spinlock.
54068 */
54069- if (hvcsd->port.count <= 0) {
54070+ if (atomic_read(&hvcsd->port.count) <= 0) {
54071 spin_unlock_irqrestore(&hvcsd->lock, flags);
54072 return -ENODEV;
54073 }
54074@@ -1426,7 +1427,7 @@ static int hvcs_write_room(struct tty_struct *tty)
54075 {
54076 struct hvcs_struct *hvcsd = tty->driver_data;
54077
54078- if (!hvcsd || hvcsd->port.count <= 0)
54079+ if (!hvcsd || atomic_read(&hvcsd->port.count) <= 0)
54080 return 0;
54081
54082 return HVCS_BUFF_LEN - hvcsd->chars_in_buffer;
54083diff --git a/drivers/tty/hvc/hvsi.c b/drivers/tty/hvc/hvsi.c
54084index 4190199..06d5bfa 100644
54085--- a/drivers/tty/hvc/hvsi.c
54086+++ b/drivers/tty/hvc/hvsi.c
54087@@ -85,7 +85,7 @@ struct hvsi_struct {
54088 int n_outbuf;
54089 uint32_t vtermno;
54090 uint32_t virq;
54091- atomic_t seqno; /* HVSI packet sequence number */
54092+ atomic_unchecked_t seqno; /* HVSI packet sequence number */
54093 uint16_t mctrl;
54094 uint8_t state; /* HVSI protocol state */
54095 uint8_t flags;
54096@@ -295,7 +295,7 @@ static int hvsi_version_respond(struct hvsi_struct *hp, uint16_t query_seqno)
54097
54098 packet.hdr.type = VS_QUERY_RESPONSE_PACKET_HEADER;
54099 packet.hdr.len = sizeof(struct hvsi_query_response);
54100- packet.hdr.seqno = atomic_inc_return(&hp->seqno);
54101+ packet.hdr.seqno = atomic_inc_return_unchecked(&hp->seqno);
54102 packet.verb = VSV_SEND_VERSION_NUMBER;
54103 packet.u.version = HVSI_VERSION;
54104 packet.query_seqno = query_seqno+1;
54105@@ -555,7 +555,7 @@ static int hvsi_query(struct hvsi_struct *hp, uint16_t verb)
54106
54107 packet.hdr.type = VS_QUERY_PACKET_HEADER;
54108 packet.hdr.len = sizeof(struct hvsi_query);
54109- packet.hdr.seqno = atomic_inc_return(&hp->seqno);
54110+ packet.hdr.seqno = atomic_inc_return_unchecked(&hp->seqno);
54111 packet.verb = verb;
54112
54113 pr_debug("%s: sending %i bytes\n", __func__, packet.hdr.len);
54114@@ -597,7 +597,7 @@ static int hvsi_set_mctrl(struct hvsi_struct *hp, uint16_t mctrl)
54115 int wrote;
54116
54117 packet.hdr.type = VS_CONTROL_PACKET_HEADER,
54118- packet.hdr.seqno = atomic_inc_return(&hp->seqno);
54119+ packet.hdr.seqno = atomic_inc_return_unchecked(&hp->seqno);
54120 packet.hdr.len = sizeof(struct hvsi_control);
54121 packet.verb = VSV_SET_MODEM_CTL;
54122 packet.mask = HVSI_TSDTR;
54123@@ -680,7 +680,7 @@ static int hvsi_put_chars(struct hvsi_struct *hp, const char *buf, int count)
54124 BUG_ON(count > HVSI_MAX_OUTGOING_DATA);
54125
54126 packet.hdr.type = VS_DATA_PACKET_HEADER;
54127- packet.hdr.seqno = atomic_inc_return(&hp->seqno);
54128+ packet.hdr.seqno = atomic_inc_return_unchecked(&hp->seqno);
54129 packet.hdr.len = count + sizeof(struct hvsi_header);
54130 memcpy(&packet.data, buf, count);
54131
54132@@ -697,7 +697,7 @@ static void hvsi_close_protocol(struct hvsi_struct *hp)
54133 struct hvsi_control packet __ALIGNED__;
54134
54135 packet.hdr.type = VS_CONTROL_PACKET_HEADER;
54136- packet.hdr.seqno = atomic_inc_return(&hp->seqno);
54137+ packet.hdr.seqno = atomic_inc_return_unchecked(&hp->seqno);
54138 packet.hdr.len = 6;
54139 packet.verb = VSV_CLOSE_PROTOCOL;
54140
54141@@ -725,7 +725,7 @@ static int hvsi_open(struct tty_struct *tty, struct file *filp)
54142
54143 tty_port_tty_set(&hp->port, tty);
54144 spin_lock_irqsave(&hp->lock, flags);
54145- hp->port.count++;
54146+ atomic_inc(&hp->port.count);
54147 atomic_set(&hp->seqno, 0);
54148 h_vio_signal(hp->vtermno, VIO_IRQ_ENABLE);
54149 spin_unlock_irqrestore(&hp->lock, flags);
54150@@ -782,7 +782,7 @@ static void hvsi_close(struct tty_struct *tty, struct file *filp)
54151
54152 spin_lock_irqsave(&hp->lock, flags);
54153
54154- if (--hp->port.count == 0) {
54155+ if (atomic_dec_return(&hp->port.count) == 0) {
54156 tty_port_tty_set(&hp->port, NULL);
54157 hp->inbuf_end = hp->inbuf; /* discard remaining partial packets */
54158
54159@@ -815,9 +815,9 @@ static void hvsi_close(struct tty_struct *tty, struct file *filp)
54160
54161 spin_lock_irqsave(&hp->lock, flags);
54162 }
54163- } else if (hp->port.count < 0)
54164+ } else if (atomic_read(&hp->port.count) < 0)
54165 printk(KERN_ERR "hvsi_close %lu: oops, count is %d\n",
54166- hp - hvsi_ports, hp->port.count);
54167+ hp - hvsi_ports, atomic_read(&hp->port.count));
54168
54169 spin_unlock_irqrestore(&hp->lock, flags);
54170 }
54171@@ -832,7 +832,7 @@ static void hvsi_hangup(struct tty_struct *tty)
54172 tty_port_tty_set(&hp->port, NULL);
54173
54174 spin_lock_irqsave(&hp->lock, flags);
54175- hp->port.count = 0;
54176+ atomic_set(&hp->port.count, 0);
54177 hp->n_outbuf = 0;
54178 spin_unlock_irqrestore(&hp->lock, flags);
54179 }
54180diff --git a/drivers/tty/hvc/hvsi_lib.c b/drivers/tty/hvc/hvsi_lib.c
54181index a270f04..7c77b5d 100644
54182--- a/drivers/tty/hvc/hvsi_lib.c
54183+++ b/drivers/tty/hvc/hvsi_lib.c
54184@@ -8,7 +8,7 @@
54185
54186 static int hvsi_send_packet(struct hvsi_priv *pv, struct hvsi_header *packet)
54187 {
54188- packet->seqno = cpu_to_be16(atomic_inc_return(&pv->seqno));
54189+ packet->seqno = cpu_to_be16(atomic_inc_return_unchecked(&pv->seqno));
54190
54191 /* Assumes that always succeeds, works in practice */
54192 return pv->put_chars(pv->termno, (char *)packet, packet->len);
54193@@ -20,7 +20,7 @@ static void hvsi_start_handshake(struct hvsi_priv *pv)
54194
54195 /* Reset state */
54196 pv->established = 0;
54197- atomic_set(&pv->seqno, 0);
54198+ atomic_set_unchecked(&pv->seqno, 0);
54199
54200 pr_devel("HVSI@%x: Handshaking started\n", pv->termno);
54201
54202diff --git a/drivers/tty/ipwireless/tty.c b/drivers/tty/ipwireless/tty.c
54203index 345cebb..d5a1e9e 100644
54204--- a/drivers/tty/ipwireless/tty.c
54205+++ b/drivers/tty/ipwireless/tty.c
54206@@ -28,6 +28,7 @@
54207 #include <linux/tty_driver.h>
54208 #include <linux/tty_flip.h>
54209 #include <linux/uaccess.h>
54210+#include <asm/local.h>
54211
54212 #include "tty.h"
54213 #include "network.h"
54214@@ -93,10 +94,10 @@ static int ipw_open(struct tty_struct *linux_tty, struct file *filp)
54215 return -ENODEV;
54216
54217 mutex_lock(&tty->ipw_tty_mutex);
54218- if (tty->port.count == 0)
54219+ if (atomic_read(&tty->port.count) == 0)
54220 tty->tx_bytes_queued = 0;
54221
54222- tty->port.count++;
54223+ atomic_inc(&tty->port.count);
54224
54225 tty->port.tty = linux_tty;
54226 linux_tty->driver_data = tty;
54227@@ -112,9 +113,7 @@ static int ipw_open(struct tty_struct *linux_tty, struct file *filp)
54228
54229 static void do_ipw_close(struct ipw_tty *tty)
54230 {
54231- tty->port.count--;
54232-
54233- if (tty->port.count == 0) {
54234+ if (atomic_dec_return(&tty->port.count) == 0) {
54235 struct tty_struct *linux_tty = tty->port.tty;
54236
54237 if (linux_tty != NULL) {
54238@@ -135,7 +134,7 @@ static void ipw_hangup(struct tty_struct *linux_tty)
54239 return;
54240
54241 mutex_lock(&tty->ipw_tty_mutex);
54242- if (tty->port.count == 0) {
54243+ if (atomic_read(&tty->port.count) == 0) {
54244 mutex_unlock(&tty->ipw_tty_mutex);
54245 return;
54246 }
54247@@ -158,7 +157,7 @@ void ipwireless_tty_received(struct ipw_tty *tty, unsigned char *data,
54248
54249 mutex_lock(&tty->ipw_tty_mutex);
54250
54251- if (!tty->port.count) {
54252+ if (!atomic_read(&tty->port.count)) {
54253 mutex_unlock(&tty->ipw_tty_mutex);
54254 return;
54255 }
54256@@ -197,7 +196,7 @@ static int ipw_write(struct tty_struct *linux_tty,
54257 return -ENODEV;
54258
54259 mutex_lock(&tty->ipw_tty_mutex);
54260- if (!tty->port.count) {
54261+ if (!atomic_read(&tty->port.count)) {
54262 mutex_unlock(&tty->ipw_tty_mutex);
54263 return -EINVAL;
54264 }
54265@@ -237,7 +236,7 @@ static int ipw_write_room(struct tty_struct *linux_tty)
54266 if (!tty)
54267 return -ENODEV;
54268
54269- if (!tty->port.count)
54270+ if (!atomic_read(&tty->port.count))
54271 return -EINVAL;
54272
54273 room = IPWIRELESS_TX_QUEUE_SIZE - tty->tx_bytes_queued;
54274@@ -279,7 +278,7 @@ static int ipw_chars_in_buffer(struct tty_struct *linux_tty)
54275 if (!tty)
54276 return 0;
54277
54278- if (!tty->port.count)
54279+ if (!atomic_read(&tty->port.count))
54280 return 0;
54281
54282 return tty->tx_bytes_queued;
54283@@ -360,7 +359,7 @@ static int ipw_tiocmget(struct tty_struct *linux_tty)
54284 if (!tty)
54285 return -ENODEV;
54286
54287- if (!tty->port.count)
54288+ if (!atomic_read(&tty->port.count))
54289 return -EINVAL;
54290
54291 return get_control_lines(tty);
54292@@ -376,7 +375,7 @@ ipw_tiocmset(struct tty_struct *linux_tty,
54293 if (!tty)
54294 return -ENODEV;
54295
54296- if (!tty->port.count)
54297+ if (!atomic_read(&tty->port.count))
54298 return -EINVAL;
54299
54300 return set_control_lines(tty, set, clear);
54301@@ -390,7 +389,7 @@ static int ipw_ioctl(struct tty_struct *linux_tty,
54302 if (!tty)
54303 return -ENODEV;
54304
54305- if (!tty->port.count)
54306+ if (!atomic_read(&tty->port.count))
54307 return -EINVAL;
54308
54309 /* FIXME: Exactly how is the tty object locked here .. */
54310@@ -546,7 +545,7 @@ void ipwireless_tty_free(struct ipw_tty *tty)
54311 * are gone */
54312 mutex_lock(&ttyj->ipw_tty_mutex);
54313 }
54314- while (ttyj->port.count)
54315+ while (atomic_read(&ttyj->port.count))
54316 do_ipw_close(ttyj);
54317 ipwireless_disassociate_network_ttys(network,
54318 ttyj->channel_idx);
54319diff --git a/drivers/tty/moxa.c b/drivers/tty/moxa.c
54320index 14c54e0..1efd4f2 100644
54321--- a/drivers/tty/moxa.c
54322+++ b/drivers/tty/moxa.c
54323@@ -1189,7 +1189,7 @@ static int moxa_open(struct tty_struct *tty, struct file *filp)
54324 }
54325
54326 ch = &brd->ports[port % MAX_PORTS_PER_BOARD];
54327- ch->port.count++;
54328+ atomic_inc(&ch->port.count);
54329 tty->driver_data = ch;
54330 tty_port_tty_set(&ch->port, tty);
54331 mutex_lock(&ch->port.mutex);
54332diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c
54333index bce16e4..1120a85 100644
54334--- a/drivers/tty/n_gsm.c
54335+++ b/drivers/tty/n_gsm.c
54336@@ -1644,7 +1644,7 @@ static struct gsm_dlci *gsm_dlci_alloc(struct gsm_mux *gsm, int addr)
54337 spin_lock_init(&dlci->lock);
54338 mutex_init(&dlci->mutex);
54339 dlci->fifo = &dlci->_fifo;
54340- if (kfifo_alloc(&dlci->_fifo, 4096, GFP_KERNEL) < 0) {
54341+ if (kfifo_alloc(&dlci->_fifo, 4096, GFP_KERNEL)) {
54342 kfree(dlci);
54343 return NULL;
54344 }
54345@@ -2958,7 +2958,7 @@ static int gsmtty_open(struct tty_struct *tty, struct file *filp)
54346 struct gsm_dlci *dlci = tty->driver_data;
54347 struct tty_port *port = &dlci->port;
54348
54349- port->count++;
54350+ atomic_inc(&port->count);
54351 tty_port_tty_set(port, tty);
54352
54353 dlci->modem_rx = 0;
54354diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c
54355index eee40b5..796fb03 100644
54356--- a/drivers/tty/n_tty.c
54357+++ b/drivers/tty/n_tty.c
54358@@ -116,7 +116,7 @@ struct n_tty_data {
54359 int minimum_to_wake;
54360
54361 /* consumer-published */
54362- size_t read_tail;
54363+ size_t read_tail __intentional_overflow(-1);
54364 size_t line_start;
54365
54366 /* protected by output lock */
54367@@ -2572,6 +2572,7 @@ void n_tty_inherit_ops(struct tty_ldisc_ops *ops)
54368 {
54369 *ops = tty_ldisc_N_TTY;
54370 ops->owner = NULL;
54371- ops->refcount = ops->flags = 0;
54372+ atomic_set(&ops->refcount, 0);
54373+ ops->flags = 0;
54374 }
54375 EXPORT_SYMBOL_GPL(n_tty_inherit_ops);
54376diff --git a/drivers/tty/pty.c b/drivers/tty/pty.c
54377index 4d5e840..a2340a6 100644
54378--- a/drivers/tty/pty.c
54379+++ b/drivers/tty/pty.c
54380@@ -849,8 +849,10 @@ static void __init unix98_pty_init(void)
54381 panic("Couldn't register Unix98 pts driver");
54382
54383 /* Now create the /dev/ptmx special device */
54384+ pax_open_kernel();
54385 tty_default_fops(&ptmx_fops);
54386- ptmx_fops.open = ptmx_open;
54387+ *(void **)&ptmx_fops.open = ptmx_open;
54388+ pax_close_kernel();
54389
54390 cdev_init(&ptmx_cdev, &ptmx_fops);
54391 if (cdev_add(&ptmx_cdev, MKDEV(TTYAUX_MAJOR, 2), 1) ||
54392diff --git a/drivers/tty/rocket.c b/drivers/tty/rocket.c
54393index c8dd8dc..dca6cfd 100644
54394--- a/drivers/tty/rocket.c
54395+++ b/drivers/tty/rocket.c
54396@@ -914,7 +914,7 @@ static int rp_open(struct tty_struct *tty, struct file *filp)
54397 tty->driver_data = info;
54398 tty_port_tty_set(port, tty);
54399
54400- if (port->count++ == 0) {
54401+ if (atomic_inc_return(&port->count) == 1) {
54402 atomic_inc(&rp_num_ports_open);
54403
54404 #ifdef ROCKET_DEBUG_OPEN
54405@@ -923,7 +923,7 @@ static int rp_open(struct tty_struct *tty, struct file *filp)
54406 #endif
54407 }
54408 #ifdef ROCKET_DEBUG_OPEN
54409- printk(KERN_INFO "rp_open ttyR%d, count=%d\n", info->line, info->port.count);
54410+ printk(KERN_INFO "rp_open ttyR%d, count=%d\n", info->line, atomic-read(&info->port.count));
54411 #endif
54412
54413 /*
54414@@ -1515,7 +1515,7 @@ static void rp_hangup(struct tty_struct *tty)
54415 spin_unlock_irqrestore(&info->port.lock, flags);
54416 return;
54417 }
54418- if (info->port.count)
54419+ if (atomic_read(&info->port.count))
54420 atomic_dec(&rp_num_ports_open);
54421 clear_bit((info->aiop * 8) + info->chan, (void *) &xmit_flags[info->board]);
54422 spin_unlock_irqrestore(&info->port.lock, flags);
54423diff --git a/drivers/tty/serial/ioc4_serial.c b/drivers/tty/serial/ioc4_serial.c
54424index aa28209..e08fb85 100644
54425--- a/drivers/tty/serial/ioc4_serial.c
54426+++ b/drivers/tty/serial/ioc4_serial.c
54427@@ -437,7 +437,7 @@ struct ioc4_soft {
54428 } is_intr_info[MAX_IOC4_INTR_ENTS];
54429
54430 /* Number of entries active in the above array */
54431- atomic_t is_num_intrs;
54432+ atomic_unchecked_t is_num_intrs;
54433 } is_intr_type[IOC4_NUM_INTR_TYPES];
54434
54435 /* is_ir_lock must be held while
54436@@ -974,7 +974,7 @@ intr_connect(struct ioc4_soft *soft, int type,
54437 BUG_ON(!((type == IOC4_SIO_INTR_TYPE)
54438 || (type == IOC4_OTHER_INTR_TYPE)));
54439
54440- i = atomic_inc_return(&soft-> is_intr_type[type].is_num_intrs) - 1;
54441+ i = atomic_inc_return_unchecked(&soft-> is_intr_type[type].is_num_intrs) - 1;
54442 BUG_ON(!(i < MAX_IOC4_INTR_ENTS || (printk("i %d\n", i), 0)));
54443
54444 /* Save off the lower level interrupt handler */
54445@@ -1001,7 +1001,7 @@ static irqreturn_t ioc4_intr(int irq, void *arg)
54446
54447 soft = arg;
54448 for (intr_type = 0; intr_type < IOC4_NUM_INTR_TYPES; intr_type++) {
54449- num_intrs = (int)atomic_read(
54450+ num_intrs = (int)atomic_read_unchecked(
54451 &soft->is_intr_type[intr_type].is_num_intrs);
54452
54453 this_mir = this_ir = pending_intrs(soft, intr_type);
54454diff --git a/drivers/tty/serial/kgdb_nmi.c b/drivers/tty/serial/kgdb_nmi.c
54455index 129dc5b..1da5bb8 100644
54456--- a/drivers/tty/serial/kgdb_nmi.c
54457+++ b/drivers/tty/serial/kgdb_nmi.c
54458@@ -53,7 +53,9 @@ static int kgdb_nmi_console_setup(struct console *co, char *options)
54459 * I/O utilities that messages sent to the console will automatically
54460 * be displayed on the dbg_io.
54461 */
54462- dbg_io_ops->is_console = true;
54463+ pax_open_kernel();
54464+ *(int *)&dbg_io_ops->is_console = true;
54465+ pax_close_kernel();
54466
54467 return 0;
54468 }
54469diff --git a/drivers/tty/serial/kgdboc.c b/drivers/tty/serial/kgdboc.c
54470index a260cde..6b2b5ce 100644
54471--- a/drivers/tty/serial/kgdboc.c
54472+++ b/drivers/tty/serial/kgdboc.c
54473@@ -24,8 +24,9 @@
54474 #define MAX_CONFIG_LEN 40
54475
54476 static struct kgdb_io kgdboc_io_ops;
54477+static struct kgdb_io kgdboc_io_ops_console;
54478
54479-/* -1 = init not run yet, 0 = unconfigured, 1 = configured. */
54480+/* -1 = init not run yet, 0 = unconfigured, 1/2 = configured. */
54481 static int configured = -1;
54482
54483 static char config[MAX_CONFIG_LEN];
54484@@ -151,6 +152,8 @@ static void cleanup_kgdboc(void)
54485 kgdboc_unregister_kbd();
54486 if (configured == 1)
54487 kgdb_unregister_io_module(&kgdboc_io_ops);
54488+ else if (configured == 2)
54489+ kgdb_unregister_io_module(&kgdboc_io_ops_console);
54490 }
54491
54492 static int configure_kgdboc(void)
54493@@ -160,13 +163,13 @@ static int configure_kgdboc(void)
54494 int err;
54495 char *cptr = config;
54496 struct console *cons;
54497+ int is_console = 0;
54498
54499 err = kgdboc_option_setup(config);
54500 if (err || !strlen(config) || isspace(config[0]))
54501 goto noconfig;
54502
54503 err = -ENODEV;
54504- kgdboc_io_ops.is_console = 0;
54505 kgdb_tty_driver = NULL;
54506
54507 kgdboc_use_kms = 0;
54508@@ -187,7 +190,7 @@ static int configure_kgdboc(void)
54509 int idx;
54510 if (cons->device && cons->device(cons, &idx) == p &&
54511 idx == tty_line) {
54512- kgdboc_io_ops.is_console = 1;
54513+ is_console = 1;
54514 break;
54515 }
54516 cons = cons->next;
54517@@ -197,7 +200,13 @@ static int configure_kgdboc(void)
54518 kgdb_tty_line = tty_line;
54519
54520 do_register:
54521- err = kgdb_register_io_module(&kgdboc_io_ops);
54522+ if (is_console) {
54523+ err = kgdb_register_io_module(&kgdboc_io_ops_console);
54524+ configured = 2;
54525+ } else {
54526+ err = kgdb_register_io_module(&kgdboc_io_ops);
54527+ configured = 1;
54528+ }
54529 if (err)
54530 goto noconfig;
54531
54532@@ -205,8 +214,6 @@ do_register:
54533 if (err)
54534 goto nmi_con_failed;
54535
54536- configured = 1;
54537-
54538 return 0;
54539
54540 nmi_con_failed:
54541@@ -223,7 +230,7 @@ noconfig:
54542 static int __init init_kgdboc(void)
54543 {
54544 /* Already configured? */
54545- if (configured == 1)
54546+ if (configured >= 1)
54547 return 0;
54548
54549 return configure_kgdboc();
54550@@ -272,7 +279,7 @@ static int param_set_kgdboc_var(const char *kmessage, struct kernel_param *kp)
54551 if (config[len - 1] == '\n')
54552 config[len - 1] = '\0';
54553
54554- if (configured == 1)
54555+ if (configured >= 1)
54556 cleanup_kgdboc();
54557
54558 /* Go and configure with the new params. */
54559@@ -312,6 +319,15 @@ static struct kgdb_io kgdboc_io_ops = {
54560 .post_exception = kgdboc_post_exp_handler,
54561 };
54562
54563+static struct kgdb_io kgdboc_io_ops_console = {
54564+ .name = "kgdboc",
54565+ .read_char = kgdboc_get_char,
54566+ .write_char = kgdboc_put_char,
54567+ .pre_exception = kgdboc_pre_exp_handler,
54568+ .post_exception = kgdboc_post_exp_handler,
54569+ .is_console = 1
54570+};
54571+
54572 #ifdef CONFIG_KGDB_SERIAL_CONSOLE
54573 /* This is only available if kgdboc is a built in for early debugging */
54574 static int __init kgdboc_early_init(char *opt)
54575diff --git a/drivers/tty/serial/msm_serial.c b/drivers/tty/serial/msm_serial.c
54576index b73889c..9f74f0a 100644
54577--- a/drivers/tty/serial/msm_serial.c
54578+++ b/drivers/tty/serial/msm_serial.c
54579@@ -1012,7 +1012,7 @@ static struct uart_driver msm_uart_driver = {
54580 .cons = MSM_CONSOLE,
54581 };
54582
54583-static atomic_t msm_uart_next_id = ATOMIC_INIT(0);
54584+static atomic_unchecked_t msm_uart_next_id = ATOMIC_INIT(0);
54585
54586 static const struct of_device_id msm_uartdm_table[] = {
54587 { .compatible = "qcom,msm-uartdm-v1.1", .data = (void *)UARTDM_1P1 },
54588@@ -1036,7 +1036,7 @@ static int msm_serial_probe(struct platform_device *pdev)
54589 line = pdev->id;
54590
54591 if (line < 0)
54592- line = atomic_inc_return(&msm_uart_next_id) - 1;
54593+ line = atomic_inc_return_unchecked(&msm_uart_next_id) - 1;
54594
54595 if (unlikely(line < 0 || line >= UART_NR))
54596 return -ENXIO;
54597diff --git a/drivers/tty/serial/samsung.c b/drivers/tty/serial/samsung.c
54598index cf08876..711e0bf 100644
54599--- a/drivers/tty/serial/samsung.c
54600+++ b/drivers/tty/serial/samsung.c
54601@@ -987,11 +987,16 @@ static void s3c24xx_serial_shutdown(struct uart_port *port)
54602 ourport->tx_in_progress = 0;
54603 }
54604
54605+static int s3c64xx_serial_startup(struct uart_port *port);
54606 static int s3c24xx_serial_startup(struct uart_port *port)
54607 {
54608 struct s3c24xx_uart_port *ourport = to_ourport(port);
54609 int ret;
54610
54611+ /* Startup sequence is different for s3c64xx and higher SoC's */
54612+ if (s3c24xx_serial_has_interrupt_mask(port))
54613+ return s3c64xx_serial_startup(port);
54614+
54615 dbg("s3c24xx_serial_startup: port=%p (%08llx,%p)\n",
54616 port, (unsigned long long)port->mapbase, port->membase);
54617
54618@@ -1697,10 +1702,6 @@ static int s3c24xx_serial_init_port(struct s3c24xx_uart_port *ourport,
54619 /* setup info for port */
54620 port->dev = &platdev->dev;
54621
54622- /* Startup sequence is different for s3c64xx and higher SoC's */
54623- if (s3c24xx_serial_has_interrupt_mask(port))
54624- s3c24xx_serial_ops.startup = s3c64xx_serial_startup;
54625-
54626 port->uartclk = 1;
54627
54628 if (cfg->uart_flags & UPF_CONS_FLOW) {
54629diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c
54630index 6a1055a..5ca9ad9 100644
54631--- a/drivers/tty/serial/serial_core.c
54632+++ b/drivers/tty/serial/serial_core.c
54633@@ -1377,7 +1377,7 @@ static void uart_close(struct tty_struct *tty, struct file *filp)
54634 state = drv->state + tty->index;
54635 port = &state->port;
54636 spin_lock_irq(&port->lock);
54637- --port->count;
54638+ atomic_dec(&port->count);
54639 spin_unlock_irq(&port->lock);
54640 return;
54641 }
54642@@ -1387,7 +1387,7 @@ static void uart_close(struct tty_struct *tty, struct file *filp)
54643
54644 pr_debug("uart_close(%d) called\n", uport ? uport->line : -1);
54645
54646- if (!port->count || tty_port_close_start(port, tty, filp) == 0)
54647+ if (!atomic_read(&port->count) || tty_port_close_start(port, tty, filp) == 0)
54648 return;
54649
54650 /*
54651@@ -1511,7 +1511,7 @@ static void uart_hangup(struct tty_struct *tty)
54652 uart_flush_buffer(tty);
54653 uart_shutdown(tty, state);
54654 spin_lock_irqsave(&port->lock, flags);
54655- port->count = 0;
54656+ atomic_set(&port->count, 0);
54657 clear_bit(ASYNCB_NORMAL_ACTIVE, &port->flags);
54658 spin_unlock_irqrestore(&port->lock, flags);
54659 tty_port_tty_set(port, NULL);
54660@@ -1598,7 +1598,7 @@ static int uart_open(struct tty_struct *tty, struct file *filp)
54661 pr_debug("uart_open(%d) called\n", line);
54662
54663 spin_lock_irq(&port->lock);
54664- ++port->count;
54665+ atomic_inc(&port->count);
54666 spin_unlock_irq(&port->lock);
54667
54668 /*
54669diff --git a/drivers/tty/synclink.c b/drivers/tty/synclink.c
54670index b799170..87dafd5 100644
54671--- a/drivers/tty/synclink.c
54672+++ b/drivers/tty/synclink.c
54673@@ -3090,7 +3090,7 @@ static void mgsl_close(struct tty_struct *tty, struct file * filp)
54674
54675 if (debug_level >= DEBUG_LEVEL_INFO)
54676 printk("%s(%d):mgsl_close(%s) entry, count=%d\n",
54677- __FILE__,__LINE__, info->device_name, info->port.count);
54678+ __FILE__,__LINE__, info->device_name, atomic_read(&info->port.count));
54679
54680 if (tty_port_close_start(&info->port, tty, filp) == 0)
54681 goto cleanup;
54682@@ -3108,7 +3108,7 @@ static void mgsl_close(struct tty_struct *tty, struct file * filp)
54683 cleanup:
54684 if (debug_level >= DEBUG_LEVEL_INFO)
54685 printk("%s(%d):mgsl_close(%s) exit, count=%d\n", __FILE__,__LINE__,
54686- tty->driver->name, info->port.count);
54687+ tty->driver->name, atomic_read(&info->port.count));
54688
54689 } /* end of mgsl_close() */
54690
54691@@ -3207,8 +3207,8 @@ static void mgsl_hangup(struct tty_struct *tty)
54692
54693 mgsl_flush_buffer(tty);
54694 shutdown(info);
54695-
54696- info->port.count = 0;
54697+
54698+ atomic_set(&info->port.count, 0);
54699 info->port.flags &= ~ASYNC_NORMAL_ACTIVE;
54700 info->port.tty = NULL;
54701
54702@@ -3296,10 +3296,10 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
54703
54704 if (debug_level >= DEBUG_LEVEL_INFO)
54705 printk("%s(%d):block_til_ready before block on %s count=%d\n",
54706- __FILE__,__LINE__, tty->driver->name, port->count );
54707+ __FILE__,__LINE__, tty->driver->name, atomic_read(&port->count));
54708
54709 spin_lock_irqsave(&info->irq_spinlock, flags);
54710- port->count--;
54711+ atomic_dec(&port->count);
54712 spin_unlock_irqrestore(&info->irq_spinlock, flags);
54713 port->blocked_open++;
54714
54715@@ -3327,7 +3327,7 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
54716
54717 if (debug_level >= DEBUG_LEVEL_INFO)
54718 printk("%s(%d):block_til_ready blocking on %s count=%d\n",
54719- __FILE__,__LINE__, tty->driver->name, port->count );
54720+ __FILE__,__LINE__, tty->driver->name, atomic_read(&port->count));
54721
54722 tty_unlock(tty);
54723 schedule();
54724@@ -3339,12 +3339,12 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
54725
54726 /* FIXME: Racy on hangup during close wait */
54727 if (!tty_hung_up_p(filp))
54728- port->count++;
54729+ atomic_inc(&port->count);
54730 port->blocked_open--;
54731
54732 if (debug_level >= DEBUG_LEVEL_INFO)
54733 printk("%s(%d):block_til_ready after blocking on %s count=%d\n",
54734- __FILE__,__LINE__, tty->driver->name, port->count );
54735+ __FILE__,__LINE__, tty->driver->name, atomic_read(&port->count));
54736
54737 if (!retval)
54738 port->flags |= ASYNC_NORMAL_ACTIVE;
54739@@ -3396,7 +3396,7 @@ static int mgsl_open(struct tty_struct *tty, struct file * filp)
54740
54741 if (debug_level >= DEBUG_LEVEL_INFO)
54742 printk("%s(%d):mgsl_open(%s), old ref count = %d\n",
54743- __FILE__,__LINE__,tty->driver->name, info->port.count);
54744+ __FILE__,__LINE__,tty->driver->name, atomic_read(&info->port.count));
54745
54746 /* If port is closing, signal caller to try again */
54747 if (info->port.flags & ASYNC_CLOSING){
54748@@ -3415,10 +3415,10 @@ static int mgsl_open(struct tty_struct *tty, struct file * filp)
54749 spin_unlock_irqrestore(&info->netlock, flags);
54750 goto cleanup;
54751 }
54752- info->port.count++;
54753+ atomic_inc(&info->port.count);
54754 spin_unlock_irqrestore(&info->netlock, flags);
54755
54756- if (info->port.count == 1) {
54757+ if (atomic_read(&info->port.count) == 1) {
54758 /* 1st open on this device, init hardware */
54759 retval = startup(info);
54760 if (retval < 0)
54761@@ -3442,8 +3442,8 @@ cleanup:
54762 if (retval) {
54763 if (tty->count == 1)
54764 info->port.tty = NULL; /* tty layer will release tty struct */
54765- if(info->port.count)
54766- info->port.count--;
54767+ if (atomic_read(&info->port.count))
54768+ atomic_dec(&info->port.count);
54769 }
54770
54771 return retval;
54772@@ -7661,7 +7661,7 @@ static int hdlcdev_attach(struct net_device *dev, unsigned short encoding,
54773 unsigned short new_crctype;
54774
54775 /* return error if TTY interface open */
54776- if (info->port.count)
54777+ if (atomic_read(&info->port.count))
54778 return -EBUSY;
54779
54780 switch (encoding)
54781@@ -7756,7 +7756,7 @@ static int hdlcdev_open(struct net_device *dev)
54782
54783 /* arbitrate between network and tty opens */
54784 spin_lock_irqsave(&info->netlock, flags);
54785- if (info->port.count != 0 || info->netcount != 0) {
54786+ if (atomic_read(&info->port.count) != 0 || info->netcount != 0) {
54787 printk(KERN_WARNING "%s: hdlc_open returning busy\n", dev->name);
54788 spin_unlock_irqrestore(&info->netlock, flags);
54789 return -EBUSY;
54790@@ -7842,7 +7842,7 @@ static int hdlcdev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
54791 printk("%s:hdlcdev_ioctl(%s)\n",__FILE__,dev->name);
54792
54793 /* return error if TTY interface open */
54794- if (info->port.count)
54795+ if (atomic_read(&info->port.count))
54796 return -EBUSY;
54797
54798 if (cmd != SIOCWANDEV)
54799diff --git a/drivers/tty/synclink_gt.c b/drivers/tty/synclink_gt.c
54800index 0e8c39b..e0cb171 100644
54801--- a/drivers/tty/synclink_gt.c
54802+++ b/drivers/tty/synclink_gt.c
54803@@ -670,7 +670,7 @@ static int open(struct tty_struct *tty, struct file *filp)
54804 tty->driver_data = info;
54805 info->port.tty = tty;
54806
54807- DBGINFO(("%s open, old ref count = %d\n", info->device_name, info->port.count));
54808+ DBGINFO(("%s open, old ref count = %d\n", info->device_name, atomic_read(&info->port.count)));
54809
54810 /* If port is closing, signal caller to try again */
54811 if (info->port.flags & ASYNC_CLOSING){
54812@@ -691,10 +691,10 @@ static int open(struct tty_struct *tty, struct file *filp)
54813 mutex_unlock(&info->port.mutex);
54814 goto cleanup;
54815 }
54816- info->port.count++;
54817+ atomic_inc(&info->port.count);
54818 spin_unlock_irqrestore(&info->netlock, flags);
54819
54820- if (info->port.count == 1) {
54821+ if (atomic_read(&info->port.count) == 1) {
54822 /* 1st open on this device, init hardware */
54823 retval = startup(info);
54824 if (retval < 0) {
54825@@ -715,8 +715,8 @@ cleanup:
54826 if (retval) {
54827 if (tty->count == 1)
54828 info->port.tty = NULL; /* tty layer will release tty struct */
54829- if(info->port.count)
54830- info->port.count--;
54831+ if(atomic_read(&info->port.count))
54832+ atomic_dec(&info->port.count);
54833 }
54834
54835 DBGINFO(("%s open rc=%d\n", info->device_name, retval));
54836@@ -729,7 +729,7 @@ static void close(struct tty_struct *tty, struct file *filp)
54837
54838 if (sanity_check(info, tty->name, "close"))
54839 return;
54840- DBGINFO(("%s close entry, count=%d\n", info->device_name, info->port.count));
54841+ DBGINFO(("%s close entry, count=%d\n", info->device_name, atomic_read(&info->port.count)));
54842
54843 if (tty_port_close_start(&info->port, tty, filp) == 0)
54844 goto cleanup;
54845@@ -746,7 +746,7 @@ static void close(struct tty_struct *tty, struct file *filp)
54846 tty_port_close_end(&info->port, tty);
54847 info->port.tty = NULL;
54848 cleanup:
54849- DBGINFO(("%s close exit, count=%d\n", tty->driver->name, info->port.count));
54850+ DBGINFO(("%s close exit, count=%d\n", tty->driver->name, atomic_read(&info->port.count)));
54851 }
54852
54853 static void hangup(struct tty_struct *tty)
54854@@ -764,7 +764,7 @@ static void hangup(struct tty_struct *tty)
54855 shutdown(info);
54856
54857 spin_lock_irqsave(&info->port.lock, flags);
54858- info->port.count = 0;
54859+ atomic_set(&info->port.count, 0);
54860 info->port.flags &= ~ASYNC_NORMAL_ACTIVE;
54861 info->port.tty = NULL;
54862 spin_unlock_irqrestore(&info->port.lock, flags);
54863@@ -1449,7 +1449,7 @@ static int hdlcdev_attach(struct net_device *dev, unsigned short encoding,
54864 unsigned short new_crctype;
54865
54866 /* return error if TTY interface open */
54867- if (info->port.count)
54868+ if (atomic_read(&info->port.count))
54869 return -EBUSY;
54870
54871 DBGINFO(("%s hdlcdev_attach\n", info->device_name));
54872@@ -1544,7 +1544,7 @@ static int hdlcdev_open(struct net_device *dev)
54873
54874 /* arbitrate between network and tty opens */
54875 spin_lock_irqsave(&info->netlock, flags);
54876- if (info->port.count != 0 || info->netcount != 0) {
54877+ if (atomic_read(&info->port.count) != 0 || info->netcount != 0) {
54878 DBGINFO(("%s hdlc_open busy\n", dev->name));
54879 spin_unlock_irqrestore(&info->netlock, flags);
54880 return -EBUSY;
54881@@ -1629,7 +1629,7 @@ static int hdlcdev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
54882 DBGINFO(("%s hdlcdev_ioctl\n", dev->name));
54883
54884 /* return error if TTY interface open */
54885- if (info->port.count)
54886+ if (atomic_read(&info->port.count))
54887 return -EBUSY;
54888
54889 if (cmd != SIOCWANDEV)
54890@@ -2413,7 +2413,7 @@ static irqreturn_t slgt_interrupt(int dummy, void *dev_id)
54891 if (port == NULL)
54892 continue;
54893 spin_lock(&port->lock);
54894- if ((port->port.count || port->netcount) &&
54895+ if ((atomic_read(&port->port.count) || port->netcount) &&
54896 port->pending_bh && !port->bh_running &&
54897 !port->bh_requested) {
54898 DBGISR(("%s bh queued\n", port->device_name));
54899@@ -3299,7 +3299,7 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
54900 add_wait_queue(&port->open_wait, &wait);
54901
54902 spin_lock_irqsave(&info->lock, flags);
54903- port->count--;
54904+ atomic_dec(&port->count);
54905 spin_unlock_irqrestore(&info->lock, flags);
54906 port->blocked_open++;
54907
54908@@ -3335,7 +3335,7 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
54909 remove_wait_queue(&port->open_wait, &wait);
54910
54911 if (!tty_hung_up_p(filp))
54912- port->count++;
54913+ atomic_inc(&port->count);
54914 port->blocked_open--;
54915
54916 if (!retval)
54917diff --git a/drivers/tty/synclinkmp.c b/drivers/tty/synclinkmp.c
54918index c3f9091..abe4601 100644
54919--- a/drivers/tty/synclinkmp.c
54920+++ b/drivers/tty/synclinkmp.c
54921@@ -750,7 +750,7 @@ static int open(struct tty_struct *tty, struct file *filp)
54922
54923 if (debug_level >= DEBUG_LEVEL_INFO)
54924 printk("%s(%d):%s open(), old ref count = %d\n",
54925- __FILE__,__LINE__,tty->driver->name, info->port.count);
54926+ __FILE__,__LINE__,tty->driver->name, atomic_read(&info->port.count));
54927
54928 /* If port is closing, signal caller to try again */
54929 if (info->port.flags & ASYNC_CLOSING){
54930@@ -769,10 +769,10 @@ static int open(struct tty_struct *tty, struct file *filp)
54931 spin_unlock_irqrestore(&info->netlock, flags);
54932 goto cleanup;
54933 }
54934- info->port.count++;
54935+ atomic_inc(&info->port.count);
54936 spin_unlock_irqrestore(&info->netlock, flags);
54937
54938- if (info->port.count == 1) {
54939+ if (atomic_read(&info->port.count) == 1) {
54940 /* 1st open on this device, init hardware */
54941 retval = startup(info);
54942 if (retval < 0)
54943@@ -796,8 +796,8 @@ cleanup:
54944 if (retval) {
54945 if (tty->count == 1)
54946 info->port.tty = NULL; /* tty layer will release tty struct */
54947- if(info->port.count)
54948- info->port.count--;
54949+ if(atomic_read(&info->port.count))
54950+ atomic_dec(&info->port.count);
54951 }
54952
54953 return retval;
54954@@ -815,7 +815,7 @@ static void close(struct tty_struct *tty, struct file *filp)
54955
54956 if (debug_level >= DEBUG_LEVEL_INFO)
54957 printk("%s(%d):%s close() entry, count=%d\n",
54958- __FILE__,__LINE__, info->device_name, info->port.count);
54959+ __FILE__,__LINE__, info->device_name, atomic_read(&info->port.count));
54960
54961 if (tty_port_close_start(&info->port, tty, filp) == 0)
54962 goto cleanup;
54963@@ -834,7 +834,7 @@ static void close(struct tty_struct *tty, struct file *filp)
54964 cleanup:
54965 if (debug_level >= DEBUG_LEVEL_INFO)
54966 printk("%s(%d):%s close() exit, count=%d\n", __FILE__,__LINE__,
54967- tty->driver->name, info->port.count);
54968+ tty->driver->name, atomic_read(&info->port.count));
54969 }
54970
54971 /* Called by tty_hangup() when a hangup is signaled.
54972@@ -857,7 +857,7 @@ static void hangup(struct tty_struct *tty)
54973 shutdown(info);
54974
54975 spin_lock_irqsave(&info->port.lock, flags);
54976- info->port.count = 0;
54977+ atomic_set(&info->port.count, 0);
54978 info->port.flags &= ~ASYNC_NORMAL_ACTIVE;
54979 info->port.tty = NULL;
54980 spin_unlock_irqrestore(&info->port.lock, flags);
54981@@ -1565,7 +1565,7 @@ static int hdlcdev_attach(struct net_device *dev, unsigned short encoding,
54982 unsigned short new_crctype;
54983
54984 /* return error if TTY interface open */
54985- if (info->port.count)
54986+ if (atomic_read(&info->port.count))
54987 return -EBUSY;
54988
54989 switch (encoding)
54990@@ -1660,7 +1660,7 @@ static int hdlcdev_open(struct net_device *dev)
54991
54992 /* arbitrate between network and tty opens */
54993 spin_lock_irqsave(&info->netlock, flags);
54994- if (info->port.count != 0 || info->netcount != 0) {
54995+ if (atomic_read(&info->port.count) != 0 || info->netcount != 0) {
54996 printk(KERN_WARNING "%s: hdlc_open returning busy\n", dev->name);
54997 spin_unlock_irqrestore(&info->netlock, flags);
54998 return -EBUSY;
54999@@ -1746,7 +1746,7 @@ static int hdlcdev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
55000 printk("%s:hdlcdev_ioctl(%s)\n",__FILE__,dev->name);
55001
55002 /* return error if TTY interface open */
55003- if (info->port.count)
55004+ if (atomic_read(&info->port.count))
55005 return -EBUSY;
55006
55007 if (cmd != SIOCWANDEV)
55008@@ -2621,7 +2621,7 @@ static irqreturn_t synclinkmp_interrupt(int dummy, void *dev_id)
55009 * do not request bottom half processing if the
55010 * device is not open in a normal mode.
55011 */
55012- if ( port && (port->port.count || port->netcount) &&
55013+ if ( port && (atomic_read(&port->port.count) || port->netcount) &&
55014 port->pending_bh && !port->bh_running &&
55015 !port->bh_requested ) {
55016 if ( debug_level >= DEBUG_LEVEL_ISR )
55017@@ -3318,10 +3318,10 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
55018
55019 if (debug_level >= DEBUG_LEVEL_INFO)
55020 printk("%s(%d):%s block_til_ready() before block, count=%d\n",
55021- __FILE__,__LINE__, tty->driver->name, port->count );
55022+ __FILE__,__LINE__, tty->driver->name, atomic_read(&port->count));
55023
55024 spin_lock_irqsave(&info->lock, flags);
55025- port->count--;
55026+ atomic_dec(&port->count);
55027 spin_unlock_irqrestore(&info->lock, flags);
55028 port->blocked_open++;
55029
55030@@ -3349,7 +3349,7 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
55031
55032 if (debug_level >= DEBUG_LEVEL_INFO)
55033 printk("%s(%d):%s block_til_ready() count=%d\n",
55034- __FILE__,__LINE__, tty->driver->name, port->count );
55035+ __FILE__,__LINE__, tty->driver->name, atomic_read(&port->count));
55036
55037 tty_unlock(tty);
55038 schedule();
55039@@ -3359,12 +3359,12 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
55040 set_current_state(TASK_RUNNING);
55041 remove_wait_queue(&port->open_wait, &wait);
55042 if (!tty_hung_up_p(filp))
55043- port->count++;
55044+ atomic_inc(&port->count);
55045 port->blocked_open--;
55046
55047 if (debug_level >= DEBUG_LEVEL_INFO)
55048 printk("%s(%d):%s block_til_ready() after, count=%d\n",
55049- __FILE__,__LINE__, tty->driver->name, port->count );
55050+ __FILE__,__LINE__, tty->driver->name, atomic_read(&port->count));
55051
55052 if (!retval)
55053 port->flags |= ASYNC_NORMAL_ACTIVE;
55054diff --git a/drivers/tty/sysrq.c b/drivers/tty/sysrq.c
55055index 259a4d5..9b0c9e7 100644
55056--- a/drivers/tty/sysrq.c
55057+++ b/drivers/tty/sysrq.c
55058@@ -1085,7 +1085,7 @@ EXPORT_SYMBOL(unregister_sysrq_key);
55059 static ssize_t write_sysrq_trigger(struct file *file, const char __user *buf,
55060 size_t count, loff_t *ppos)
55061 {
55062- if (count) {
55063+ if (count && capable(CAP_SYS_ADMIN)) {
55064 char c;
55065
55066 if (get_user(c, buf))
55067diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
55068index 2bb4dfc..a7f6e86 100644
55069--- a/drivers/tty/tty_io.c
55070+++ b/drivers/tty/tty_io.c
55071@@ -3503,7 +3503,7 @@ EXPORT_SYMBOL(tty_devnum);
55072
55073 void tty_default_fops(struct file_operations *fops)
55074 {
55075- *fops = tty_fops;
55076+ memcpy((void *)fops, &tty_fops, sizeof(tty_fops));
55077 }
55078
55079 /*
55080diff --git a/drivers/tty/tty_ldisc.c b/drivers/tty/tty_ldisc.c
55081index 3737f55..7cef448 100644
55082--- a/drivers/tty/tty_ldisc.c
55083+++ b/drivers/tty/tty_ldisc.c
55084@@ -71,7 +71,7 @@ int tty_register_ldisc(int disc, struct tty_ldisc_ops *new_ldisc)
55085 raw_spin_lock_irqsave(&tty_ldiscs_lock, flags);
55086 tty_ldiscs[disc] = new_ldisc;
55087 new_ldisc->num = disc;
55088- new_ldisc->refcount = 0;
55089+ atomic_set(&new_ldisc->refcount, 0);
55090 raw_spin_unlock_irqrestore(&tty_ldiscs_lock, flags);
55091
55092 return ret;
55093@@ -99,7 +99,7 @@ int tty_unregister_ldisc(int disc)
55094 return -EINVAL;
55095
55096 raw_spin_lock_irqsave(&tty_ldiscs_lock, flags);
55097- if (tty_ldiscs[disc]->refcount)
55098+ if (atomic_read(&tty_ldiscs[disc]->refcount))
55099 ret = -EBUSY;
55100 else
55101 tty_ldiscs[disc] = NULL;
55102@@ -120,7 +120,7 @@ static struct tty_ldisc_ops *get_ldops(int disc)
55103 if (ldops) {
55104 ret = ERR_PTR(-EAGAIN);
55105 if (try_module_get(ldops->owner)) {
55106- ldops->refcount++;
55107+ atomic_inc(&ldops->refcount);
55108 ret = ldops;
55109 }
55110 }
55111@@ -133,7 +133,7 @@ static void put_ldops(struct tty_ldisc_ops *ldops)
55112 unsigned long flags;
55113
55114 raw_spin_lock_irqsave(&tty_ldiscs_lock, flags);
55115- ldops->refcount--;
55116+ atomic_dec(&ldops->refcount);
55117 module_put(ldops->owner);
55118 raw_spin_unlock_irqrestore(&tty_ldiscs_lock, flags);
55119 }
55120diff --git a/drivers/tty/tty_port.c b/drivers/tty/tty_port.c
55121index 40b31835..94d92ae 100644
55122--- a/drivers/tty/tty_port.c
55123+++ b/drivers/tty/tty_port.c
55124@@ -236,7 +236,7 @@ void tty_port_hangup(struct tty_port *port)
55125 unsigned long flags;
55126
55127 spin_lock_irqsave(&port->lock, flags);
55128- port->count = 0;
55129+ atomic_set(&port->count, 0);
55130 port->flags &= ~ASYNC_NORMAL_ACTIVE;
55131 tty = port->tty;
55132 if (tty)
55133@@ -398,7 +398,7 @@ int tty_port_block_til_ready(struct tty_port *port,
55134
55135 /* The port lock protects the port counts */
55136 spin_lock_irqsave(&port->lock, flags);
55137- port->count--;
55138+ atomic_dec(&port->count);
55139 port->blocked_open++;
55140 spin_unlock_irqrestore(&port->lock, flags);
55141
55142@@ -440,7 +440,7 @@ int tty_port_block_til_ready(struct tty_port *port,
55143 we must not mess that up further */
55144 spin_lock_irqsave(&port->lock, flags);
55145 if (!tty_hung_up_p(filp))
55146- port->count++;
55147+ atomic_inc(&port->count);
55148 port->blocked_open--;
55149 if (retval == 0)
55150 port->flags |= ASYNC_NORMAL_ACTIVE;
55151@@ -476,19 +476,19 @@ int tty_port_close_start(struct tty_port *port,
55152 return 0;
55153
55154 spin_lock_irqsave(&port->lock, flags);
55155- if (tty->count == 1 && port->count != 1) {
55156+ if (tty->count == 1 && atomic_read(&port->count) != 1) {
55157 printk(KERN_WARNING
55158 "tty_port_close_start: tty->count = 1 port count = %d.\n",
55159- port->count);
55160- port->count = 1;
55161+ atomic_read(&port->count));
55162+ atomic_set(&port->count, 1);
55163 }
55164- if (--port->count < 0) {
55165+ if (atomic_dec_return(&port->count) < 0) {
55166 printk(KERN_WARNING "tty_port_close_start: count = %d\n",
55167- port->count);
55168- port->count = 0;
55169+ atomic_read(&port->count));
55170+ atomic_set(&port->count, 0);
55171 }
55172
55173- if (port->count) {
55174+ if (atomic_read(&port->count)) {
55175 spin_unlock_irqrestore(&port->lock, flags);
55176 return 0;
55177 }
55178@@ -590,7 +590,7 @@ int tty_port_open(struct tty_port *port, struct tty_struct *tty,
55179 struct file *filp)
55180 {
55181 spin_lock_irq(&port->lock);
55182- ++port->count;
55183+ atomic_inc(&port->count);
55184 spin_unlock_irq(&port->lock);
55185 tty_port_tty_set(port, tty);
55186
55187diff --git a/drivers/tty/vt/keyboard.c b/drivers/tty/vt/keyboard.c
55188index 8a89f6e..50b32af 100644
55189--- a/drivers/tty/vt/keyboard.c
55190+++ b/drivers/tty/vt/keyboard.c
55191@@ -641,6 +641,16 @@ static void k_spec(struct vc_data *vc, unsigned char value, char up_flag)
55192 kbd->kbdmode == VC_OFF) &&
55193 value != KVAL(K_SAK))
55194 return; /* SAK is allowed even in raw mode */
55195+
55196+#if defined(CONFIG_GRKERNSEC_PROC) || defined(CONFIG_GRKERNSEC_PROC_MEMMAP)
55197+ {
55198+ void *func = fn_handler[value];
55199+ if (func == fn_show_state || func == fn_show_ptregs ||
55200+ func == fn_show_mem)
55201+ return;
55202+ }
55203+#endif
55204+
55205 fn_handler[value](vc);
55206 }
55207
55208@@ -1776,9 +1786,6 @@ int vt_do_kdsk_ioctl(int cmd, struct kbentry __user *user_kbe, int perm,
55209 if (copy_from_user(&tmp, user_kbe, sizeof(struct kbentry)))
55210 return -EFAULT;
55211
55212- if (!capable(CAP_SYS_TTY_CONFIG))
55213- perm = 0;
55214-
55215 switch (cmd) {
55216 case KDGKBENT:
55217 /* Ensure another thread doesn't free it under us */
55218@@ -1793,6 +1800,9 @@ int vt_do_kdsk_ioctl(int cmd, struct kbentry __user *user_kbe, int perm,
55219 spin_unlock_irqrestore(&kbd_event_lock, flags);
55220 return put_user(val, &user_kbe->kb_value);
55221 case KDSKBENT:
55222+ if (!capable(CAP_SYS_TTY_CONFIG))
55223+ perm = 0;
55224+
55225 if (!perm)
55226 return -EPERM;
55227 if (!i && v == K_NOSUCHMAP) {
55228@@ -1883,9 +1893,6 @@ int vt_do_kdgkb_ioctl(int cmd, struct kbsentry __user *user_kdgkb, int perm)
55229 int i, j, k;
55230 int ret;
55231
55232- if (!capable(CAP_SYS_TTY_CONFIG))
55233- perm = 0;
55234-
55235 kbs = kmalloc(sizeof(*kbs), GFP_KERNEL);
55236 if (!kbs) {
55237 ret = -ENOMEM;
55238@@ -1919,6 +1926,9 @@ int vt_do_kdgkb_ioctl(int cmd, struct kbsentry __user *user_kdgkb, int perm)
55239 kfree(kbs);
55240 return ((p && *p) ? -EOVERFLOW : 0);
55241 case KDSKBSENT:
55242+ if (!capable(CAP_SYS_TTY_CONFIG))
55243+ perm = 0;
55244+
55245 if (!perm) {
55246 ret = -EPERM;
55247 goto reterr;
55248diff --git a/drivers/uio/uio.c b/drivers/uio/uio.c
55249index 6276f13..84f2449 100644
55250--- a/drivers/uio/uio.c
55251+++ b/drivers/uio/uio.c
55252@@ -25,6 +25,7 @@
55253 #include <linux/kobject.h>
55254 #include <linux/cdev.h>
55255 #include <linux/uio_driver.h>
55256+#include <asm/local.h>
55257
55258 #define UIO_MAX_DEVICES (1U << MINORBITS)
55259
55260@@ -231,7 +232,7 @@ static ssize_t event_show(struct device *dev,
55261 struct device_attribute *attr, char *buf)
55262 {
55263 struct uio_device *idev = dev_get_drvdata(dev);
55264- return sprintf(buf, "%u\n", (unsigned int)atomic_read(&idev->event));
55265+ return sprintf(buf, "%u\n", (unsigned int)atomic_read_unchecked(&idev->event));
55266 }
55267 static DEVICE_ATTR_RO(event);
55268
55269@@ -393,7 +394,7 @@ void uio_event_notify(struct uio_info *info)
55270 {
55271 struct uio_device *idev = info->uio_dev;
55272
55273- atomic_inc(&idev->event);
55274+ atomic_inc_unchecked(&idev->event);
55275 wake_up_interruptible(&idev->wait);
55276 kill_fasync(&idev->async_queue, SIGIO, POLL_IN);
55277 }
55278@@ -446,7 +447,7 @@ static int uio_open(struct inode *inode, struct file *filep)
55279 }
55280
55281 listener->dev = idev;
55282- listener->event_count = atomic_read(&idev->event);
55283+ listener->event_count = atomic_read_unchecked(&idev->event);
55284 filep->private_data = listener;
55285
55286 if (idev->info->open) {
55287@@ -497,7 +498,7 @@ static unsigned int uio_poll(struct file *filep, poll_table *wait)
55288 return -EIO;
55289
55290 poll_wait(filep, &idev->wait, wait);
55291- if (listener->event_count != atomic_read(&idev->event))
55292+ if (listener->event_count != atomic_read_unchecked(&idev->event))
55293 return POLLIN | POLLRDNORM;
55294 return 0;
55295 }
55296@@ -522,7 +523,7 @@ static ssize_t uio_read(struct file *filep, char __user *buf,
55297 do {
55298 set_current_state(TASK_INTERRUPTIBLE);
55299
55300- event_count = atomic_read(&idev->event);
55301+ event_count = atomic_read_unchecked(&idev->event);
55302 if (event_count != listener->event_count) {
55303 if (copy_to_user(buf, &event_count, count))
55304 retval = -EFAULT;
55305@@ -579,9 +580,13 @@ static ssize_t uio_write(struct file *filep, const char __user *buf,
55306 static int uio_find_mem_index(struct vm_area_struct *vma)
55307 {
55308 struct uio_device *idev = vma->vm_private_data;
55309+ unsigned long size;
55310
55311 if (vma->vm_pgoff < MAX_UIO_MAPS) {
55312- if (idev->info->mem[vma->vm_pgoff].size == 0)
55313+ size = idev->info->mem[vma->vm_pgoff].size;
55314+ if (size == 0)
55315+ return -1;
55316+ if (vma->vm_end - vma->vm_start > size)
55317 return -1;
55318 return (int)vma->vm_pgoff;
55319 }
55320@@ -813,7 +818,7 @@ int __uio_register_device(struct module *owner,
55321 idev->owner = owner;
55322 idev->info = info;
55323 init_waitqueue_head(&idev->wait);
55324- atomic_set(&idev->event, 0);
55325+ atomic_set_unchecked(&idev->event, 0);
55326
55327 ret = uio_get_minor(idev);
55328 if (ret)
55329diff --git a/drivers/usb/atm/cxacru.c b/drivers/usb/atm/cxacru.c
55330index 813d4d3..a71934f 100644
55331--- a/drivers/usb/atm/cxacru.c
55332+++ b/drivers/usb/atm/cxacru.c
55333@@ -472,7 +472,7 @@ static ssize_t cxacru_sysfs_store_adsl_config(struct device *dev,
55334 ret = sscanf(buf + pos, "%x=%x%n", &index, &value, &tmp);
55335 if (ret < 2)
55336 return -EINVAL;
55337- if (index < 0 || index > 0x7f)
55338+ if (index > 0x7f)
55339 return -EINVAL;
55340 pos += tmp;
55341
55342diff --git a/drivers/usb/atm/usbatm.c b/drivers/usb/atm/usbatm.c
55343index dada014..1d0d517 100644
55344--- a/drivers/usb/atm/usbatm.c
55345+++ b/drivers/usb/atm/usbatm.c
55346@@ -331,7 +331,7 @@ static void usbatm_extract_one_cell(struct usbatm_data *instance, unsigned char
55347 if (printk_ratelimit())
55348 atm_warn(instance, "%s: OAM not supported (vpi %d, vci %d)!\n",
55349 __func__, vpi, vci);
55350- atomic_inc(&vcc->stats->rx_err);
55351+ atomic_inc_unchecked(&vcc->stats->rx_err);
55352 return;
55353 }
55354
55355@@ -358,7 +358,7 @@ static void usbatm_extract_one_cell(struct usbatm_data *instance, unsigned char
55356 if (length > ATM_MAX_AAL5_PDU) {
55357 atm_rldbg(instance, "%s: bogus length %u (vcc: 0x%p)!\n",
55358 __func__, length, vcc);
55359- atomic_inc(&vcc->stats->rx_err);
55360+ atomic_inc_unchecked(&vcc->stats->rx_err);
55361 goto out;
55362 }
55363
55364@@ -367,14 +367,14 @@ static void usbatm_extract_one_cell(struct usbatm_data *instance, unsigned char
55365 if (sarb->len < pdu_length) {
55366 atm_rldbg(instance, "%s: bogus pdu_length %u (sarb->len: %u, vcc: 0x%p)!\n",
55367 __func__, pdu_length, sarb->len, vcc);
55368- atomic_inc(&vcc->stats->rx_err);
55369+ atomic_inc_unchecked(&vcc->stats->rx_err);
55370 goto out;
55371 }
55372
55373 if (crc32_be(~0, skb_tail_pointer(sarb) - pdu_length, pdu_length) != 0xc704dd7b) {
55374 atm_rldbg(instance, "%s: packet failed crc check (vcc: 0x%p)!\n",
55375 __func__, vcc);
55376- atomic_inc(&vcc->stats->rx_err);
55377+ atomic_inc_unchecked(&vcc->stats->rx_err);
55378 goto out;
55379 }
55380
55381@@ -386,7 +386,7 @@ static void usbatm_extract_one_cell(struct usbatm_data *instance, unsigned char
55382 if (printk_ratelimit())
55383 atm_err(instance, "%s: no memory for skb (length: %u)!\n",
55384 __func__, length);
55385- atomic_inc(&vcc->stats->rx_drop);
55386+ atomic_inc_unchecked(&vcc->stats->rx_drop);
55387 goto out;
55388 }
55389
55390@@ -414,7 +414,7 @@ static void usbatm_extract_one_cell(struct usbatm_data *instance, unsigned char
55391
55392 vcc->push(vcc, skb);
55393
55394- atomic_inc(&vcc->stats->rx);
55395+ atomic_inc_unchecked(&vcc->stats->rx);
55396 out:
55397 skb_trim(sarb, 0);
55398 }
55399@@ -612,7 +612,7 @@ static void usbatm_tx_process(unsigned long data)
55400 struct atm_vcc *vcc = UDSL_SKB(skb)->atm.vcc;
55401
55402 usbatm_pop(vcc, skb);
55403- atomic_inc(&vcc->stats->tx);
55404+ atomic_inc_unchecked(&vcc->stats->tx);
55405
55406 skb = skb_dequeue(&instance->sndqueue);
55407 }
55408@@ -756,11 +756,11 @@ static int usbatm_atm_proc_read(struct atm_dev *atm_dev, loff_t *pos, char *page
55409 if (!left--)
55410 return sprintf(page,
55411 "AAL5: tx %d ( %d err ), rx %d ( %d err, %d drop )\n",
55412- atomic_read(&atm_dev->stats.aal5.tx),
55413- atomic_read(&atm_dev->stats.aal5.tx_err),
55414- atomic_read(&atm_dev->stats.aal5.rx),
55415- atomic_read(&atm_dev->stats.aal5.rx_err),
55416- atomic_read(&atm_dev->stats.aal5.rx_drop));
55417+ atomic_read_unchecked(&atm_dev->stats.aal5.tx),
55418+ atomic_read_unchecked(&atm_dev->stats.aal5.tx_err),
55419+ atomic_read_unchecked(&atm_dev->stats.aal5.rx),
55420+ atomic_read_unchecked(&atm_dev->stats.aal5.rx_err),
55421+ atomic_read_unchecked(&atm_dev->stats.aal5.rx_drop));
55422
55423 if (!left--) {
55424 if (instance->disconnected)
55425diff --git a/drivers/usb/core/devices.c b/drivers/usb/core/devices.c
55426index 2a3bbdf..91d72cf 100644
55427--- a/drivers/usb/core/devices.c
55428+++ b/drivers/usb/core/devices.c
55429@@ -126,7 +126,7 @@ static const char format_endpt[] =
55430 * time it gets called.
55431 */
55432 static struct device_connect_event {
55433- atomic_t count;
55434+ atomic_unchecked_t count;
55435 wait_queue_head_t wait;
55436 } device_event = {
55437 .count = ATOMIC_INIT(1),
55438@@ -164,7 +164,7 @@ static const struct class_info clas_info[] = {
55439
55440 void usbfs_conn_disc_event(void)
55441 {
55442- atomic_add(2, &device_event.count);
55443+ atomic_add_unchecked(2, &device_event.count);
55444 wake_up(&device_event.wait);
55445 }
55446
55447@@ -652,7 +652,7 @@ static unsigned int usb_device_poll(struct file *file,
55448
55449 poll_wait(file, &device_event.wait, wait);
55450
55451- event_count = atomic_read(&device_event.count);
55452+ event_count = atomic_read_unchecked(&device_event.count);
55453 if (file->f_version != event_count) {
55454 file->f_version = event_count;
55455 return POLLIN | POLLRDNORM;
55456diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
55457index 1163553..f292679 100644
55458--- a/drivers/usb/core/devio.c
55459+++ b/drivers/usb/core/devio.c
55460@@ -187,7 +187,7 @@ static ssize_t usbdev_read(struct file *file, char __user *buf, size_t nbytes,
55461 struct usb_dev_state *ps = file->private_data;
55462 struct usb_device *dev = ps->dev;
55463 ssize_t ret = 0;
55464- unsigned len;
55465+ size_t len;
55466 loff_t pos;
55467 int i;
55468
55469@@ -229,22 +229,22 @@ static ssize_t usbdev_read(struct file *file, char __user *buf, size_t nbytes,
55470 for (i = 0; nbytes && i < dev->descriptor.bNumConfigurations; i++) {
55471 struct usb_config_descriptor *config =
55472 (struct usb_config_descriptor *)dev->rawdescriptors[i];
55473- unsigned int length = le16_to_cpu(config->wTotalLength);
55474+ size_t length = le16_to_cpu(config->wTotalLength);
55475
55476 if (*ppos < pos + length) {
55477
55478 /* The descriptor may claim to be longer than it
55479 * really is. Here is the actual allocated length. */
55480- unsigned alloclen =
55481+ size_t alloclen =
55482 le16_to_cpu(dev->config[i].desc.wTotalLength);
55483
55484- len = length - (*ppos - pos);
55485+ len = length + pos - *ppos;
55486 if (len > nbytes)
55487 len = nbytes;
55488
55489 /* Simply don't write (skip over) unallocated parts */
55490 if (alloclen > (*ppos - pos)) {
55491- alloclen -= (*ppos - pos);
55492+ alloclen = alloclen + pos - *ppos;
55493 if (copy_to_user(buf,
55494 dev->rawdescriptors[i] + (*ppos - pos),
55495 min(len, alloclen))) {
55496diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
55497index 45a915c..09f9735 100644
55498--- a/drivers/usb/core/hcd.c
55499+++ b/drivers/usb/core/hcd.c
55500@@ -1551,7 +1551,7 @@ int usb_hcd_submit_urb (struct urb *urb, gfp_t mem_flags)
55501 */
55502 usb_get_urb(urb);
55503 atomic_inc(&urb->use_count);
55504- atomic_inc(&urb->dev->urbnum);
55505+ atomic_inc_unchecked(&urb->dev->urbnum);
55506 usbmon_urb_submit(&hcd->self, urb);
55507
55508 /* NOTE requirements on root-hub callers (usbfs and the hub
55509@@ -1578,7 +1578,7 @@ int usb_hcd_submit_urb (struct urb *urb, gfp_t mem_flags)
55510 urb->hcpriv = NULL;
55511 INIT_LIST_HEAD(&urb->urb_list);
55512 atomic_dec(&urb->use_count);
55513- atomic_dec(&urb->dev->urbnum);
55514+ atomic_dec_unchecked(&urb->dev->urbnum);
55515 if (atomic_read(&urb->reject))
55516 wake_up(&usb_kill_urb_queue);
55517 usb_put_urb(urb);
55518diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
55519index 3b71516..1f26579 100644
55520--- a/drivers/usb/core/hub.c
55521+++ b/drivers/usb/core/hub.c
55522@@ -26,6 +26,7 @@
55523 #include <linux/mutex.h>
55524 #include <linux/random.h>
55525 #include <linux/pm_qos.h>
55526+#include <linux/grsecurity.h>
55527
55528 #include <asm/uaccess.h>
55529 #include <asm/byteorder.h>
55530@@ -4665,6 +4666,10 @@ static void hub_port_connect(struct usb_hub *hub, int port1, u16 portstatus,
55531 goto done;
55532 return;
55533 }
55534+
55535+ if (gr_handle_new_usb())
55536+ goto done;
55537+
55538 if (hub_is_superspeed(hub->hdev))
55539 unit_load = 150;
55540 else
55541diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c
55542index f368d20..0c30ac5 100644
55543--- a/drivers/usb/core/message.c
55544+++ b/drivers/usb/core/message.c
55545@@ -128,7 +128,7 @@ static int usb_internal_control_msg(struct usb_device *usb_dev,
55546 * Return: If successful, the number of bytes transferred. Otherwise, a negative
55547 * error number.
55548 */
55549-int usb_control_msg(struct usb_device *dev, unsigned int pipe, __u8 request,
55550+int __intentional_overflow(-1) usb_control_msg(struct usb_device *dev, unsigned int pipe, __u8 request,
55551 __u8 requesttype, __u16 value, __u16 index, void *data,
55552 __u16 size, int timeout)
55553 {
55554@@ -180,7 +180,7 @@ EXPORT_SYMBOL_GPL(usb_control_msg);
55555 * If successful, 0. Otherwise a negative error number. The number of actual
55556 * bytes transferred will be stored in the @actual_length parameter.
55557 */
55558-int usb_interrupt_msg(struct usb_device *usb_dev, unsigned int pipe,
55559+int __intentional_overflow(-1) usb_interrupt_msg(struct usb_device *usb_dev, unsigned int pipe,
55560 void *data, int len, int *actual_length, int timeout)
55561 {
55562 return usb_bulk_msg(usb_dev, pipe, data, len, actual_length, timeout);
55563@@ -220,7 +220,7 @@ EXPORT_SYMBOL_GPL(usb_interrupt_msg);
55564 * bytes transferred will be stored in the @actual_length parameter.
55565 *
55566 */
55567-int usb_bulk_msg(struct usb_device *usb_dev, unsigned int pipe,
55568+int __intentional_overflow(-1) usb_bulk_msg(struct usb_device *usb_dev, unsigned int pipe,
55569 void *data, int len, int *actual_length, int timeout)
55570 {
55571 struct urb *urb;
55572diff --git a/drivers/usb/core/sysfs.c b/drivers/usb/core/sysfs.c
55573index d269738..7340cd7 100644
55574--- a/drivers/usb/core/sysfs.c
55575+++ b/drivers/usb/core/sysfs.c
55576@@ -244,7 +244,7 @@ static ssize_t urbnum_show(struct device *dev, struct device_attribute *attr,
55577 struct usb_device *udev;
55578
55579 udev = to_usb_device(dev);
55580- return sprintf(buf, "%d\n", atomic_read(&udev->urbnum));
55581+ return sprintf(buf, "%d\n", atomic_read_unchecked(&udev->urbnum));
55582 }
55583 static DEVICE_ATTR_RO(urbnum);
55584
55585diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c
55586index b1fb9ae..4224885 100644
55587--- a/drivers/usb/core/usb.c
55588+++ b/drivers/usb/core/usb.c
55589@@ -431,7 +431,7 @@ struct usb_device *usb_alloc_dev(struct usb_device *parent,
55590 set_dev_node(&dev->dev, dev_to_node(bus->controller));
55591 dev->state = USB_STATE_ATTACHED;
55592 dev->lpm_disable_count = 1;
55593- atomic_set(&dev->urbnum, 0);
55594+ atomic_set_unchecked(&dev->urbnum, 0);
55595
55596 INIT_LIST_HEAD(&dev->ep0.urb_list);
55597 dev->ep0.desc.bLength = USB_DT_ENDPOINT_SIZE;
55598diff --git a/drivers/usb/early/ehci-dbgp.c b/drivers/usb/early/ehci-dbgp.c
55599index 8cfc319..4868255 100644
55600--- a/drivers/usb/early/ehci-dbgp.c
55601+++ b/drivers/usb/early/ehci-dbgp.c
55602@@ -98,7 +98,8 @@ static inline u32 dbgp_len_update(u32 x, u32 len)
55603
55604 #ifdef CONFIG_KGDB
55605 static struct kgdb_io kgdbdbgp_io_ops;
55606-#define dbgp_kgdb_mode (dbg_io_ops == &kgdbdbgp_io_ops)
55607+static struct kgdb_io kgdbdbgp_io_ops_console;
55608+#define dbgp_kgdb_mode (dbg_io_ops == &kgdbdbgp_io_ops || dbg_io_ops == &kgdbdbgp_io_ops_console)
55609 #else
55610 #define dbgp_kgdb_mode (0)
55611 #endif
55612@@ -1043,6 +1044,13 @@ static struct kgdb_io kgdbdbgp_io_ops = {
55613 .write_char = kgdbdbgp_write_char,
55614 };
55615
55616+static struct kgdb_io kgdbdbgp_io_ops_console = {
55617+ .name = "kgdbdbgp",
55618+ .read_char = kgdbdbgp_read_char,
55619+ .write_char = kgdbdbgp_write_char,
55620+ .is_console = 1
55621+};
55622+
55623 static int kgdbdbgp_wait_time;
55624
55625 static int __init kgdbdbgp_parse_config(char *str)
55626@@ -1058,8 +1066,10 @@ static int __init kgdbdbgp_parse_config(char *str)
55627 ptr++;
55628 kgdbdbgp_wait_time = simple_strtoul(ptr, &ptr, 10);
55629 }
55630- kgdb_register_io_module(&kgdbdbgp_io_ops);
55631- kgdbdbgp_io_ops.is_console = early_dbgp_console.index != -1;
55632+ if (early_dbgp_console.index != -1)
55633+ kgdb_register_io_module(&kgdbdbgp_io_ops_console);
55634+ else
55635+ kgdb_register_io_module(&kgdbdbgp_io_ops);
55636
55637 return 0;
55638 }
55639diff --git a/drivers/usb/gadget/function/f_uac1.c b/drivers/usb/gadget/function/f_uac1.c
55640index 9719abf..789d5d9 100644
55641--- a/drivers/usb/gadget/function/f_uac1.c
55642+++ b/drivers/usb/gadget/function/f_uac1.c
55643@@ -14,6 +14,7 @@
55644 #include <linux/module.h>
55645 #include <linux/device.h>
55646 #include <linux/atomic.h>
55647+#include <linux/module.h>
55648
55649 #include "u_uac1.h"
55650
55651diff --git a/drivers/usb/gadget/function/u_serial.c b/drivers/usb/gadget/function/u_serial.c
55652index 491082a..dfd7d17 100644
55653--- a/drivers/usb/gadget/function/u_serial.c
55654+++ b/drivers/usb/gadget/function/u_serial.c
55655@@ -729,9 +729,9 @@ static int gs_open(struct tty_struct *tty, struct file *file)
55656 spin_lock_irq(&port->port_lock);
55657
55658 /* already open? Great. */
55659- if (port->port.count) {
55660+ if (atomic_read(&port->port.count)) {
55661 status = 0;
55662- port->port.count++;
55663+ atomic_inc(&port->port.count);
55664
55665 /* currently opening/closing? wait ... */
55666 } else if (port->openclose) {
55667@@ -790,7 +790,7 @@ static int gs_open(struct tty_struct *tty, struct file *file)
55668 tty->driver_data = port;
55669 port->port.tty = tty;
55670
55671- port->port.count = 1;
55672+ atomic_set(&port->port.count, 1);
55673 port->openclose = false;
55674
55675 /* if connected, start the I/O stream */
55676@@ -832,11 +832,11 @@ static void gs_close(struct tty_struct *tty, struct file *file)
55677
55678 spin_lock_irq(&port->port_lock);
55679
55680- if (port->port.count != 1) {
55681- if (port->port.count == 0)
55682+ if (atomic_read(&port->port.count) != 1) {
55683+ if (atomic_read(&port->port.count) == 0)
55684 WARN_ON(1);
55685 else
55686- --port->port.count;
55687+ atomic_dec(&port->port.count);
55688 goto exit;
55689 }
55690
55691@@ -846,7 +846,7 @@ static void gs_close(struct tty_struct *tty, struct file *file)
55692 * and sleep if necessary
55693 */
55694 port->openclose = true;
55695- port->port.count = 0;
55696+ atomic_set(&port->port.count, 0);
55697
55698 gser = port->port_usb;
55699 if (gser && gser->disconnect)
55700@@ -1062,7 +1062,7 @@ static int gs_closed(struct gs_port *port)
55701 int cond;
55702
55703 spin_lock_irq(&port->port_lock);
55704- cond = (port->port.count == 0) && !port->openclose;
55705+ cond = (atomic_read(&port->port.count) == 0) && !port->openclose;
55706 spin_unlock_irq(&port->port_lock);
55707 return cond;
55708 }
55709@@ -1205,7 +1205,7 @@ int gserial_connect(struct gserial *gser, u8 port_num)
55710 /* if it's already open, start I/O ... and notify the serial
55711 * protocol about open/close status (connect/disconnect).
55712 */
55713- if (port->port.count) {
55714+ if (atomic_read(&port->port.count)) {
55715 pr_debug("gserial_connect: start ttyGS%d\n", port->port_num);
55716 gs_start_io(port);
55717 if (gser->connect)
55718@@ -1252,7 +1252,7 @@ void gserial_disconnect(struct gserial *gser)
55719
55720 port->port_usb = NULL;
55721 gser->ioport = NULL;
55722- if (port->port.count > 0 || port->openclose) {
55723+ if (atomic_read(&port->port.count) > 0 || port->openclose) {
55724 wake_up_interruptible(&port->drain_wait);
55725 if (port->port.tty)
55726 tty_hangup(port->port.tty);
55727@@ -1268,7 +1268,7 @@ void gserial_disconnect(struct gserial *gser)
55728
55729 /* finally, free any unused/unusable I/O buffers */
55730 spin_lock_irqsave(&port->port_lock, flags);
55731- if (port->port.count == 0 && !port->openclose)
55732+ if (atomic_read(&port->port.count) == 0 && !port->openclose)
55733 gs_buf_free(&port->port_write_buf);
55734 gs_free_requests(gser->out, &port->read_pool, NULL);
55735 gs_free_requests(gser->out, &port->read_queue, NULL);
55736diff --git a/drivers/usb/gadget/function/u_uac1.c b/drivers/usb/gadget/function/u_uac1.c
55737index c78c841..48fd281 100644
55738--- a/drivers/usb/gadget/function/u_uac1.c
55739+++ b/drivers/usb/gadget/function/u_uac1.c
55740@@ -17,6 +17,7 @@
55741 #include <linux/ctype.h>
55742 #include <linux/random.h>
55743 #include <linux/syscalls.h>
55744+#include <linux/module.h>
55745
55746 #include "u_uac1.h"
55747
55748diff --git a/drivers/usb/host/ehci-hub.c b/drivers/usb/host/ehci-hub.c
55749index 7354d01..299478e 100644
55750--- a/drivers/usb/host/ehci-hub.c
55751+++ b/drivers/usb/host/ehci-hub.c
55752@@ -772,7 +772,7 @@ static struct urb *request_single_step_set_feature_urb(
55753 urb->transfer_flags = URB_DIR_IN;
55754 usb_get_urb(urb);
55755 atomic_inc(&urb->use_count);
55756- atomic_inc(&urb->dev->urbnum);
55757+ atomic_inc_unchecked(&urb->dev->urbnum);
55758 urb->setup_dma = dma_map_single(
55759 hcd->self.controller,
55760 urb->setup_packet,
55761@@ -839,7 +839,7 @@ static int ehset_single_step_set_feature(struct usb_hcd *hcd, int port)
55762 urb->status = -EINPROGRESS;
55763 usb_get_urb(urb);
55764 atomic_inc(&urb->use_count);
55765- atomic_inc(&urb->dev->urbnum);
55766+ atomic_inc_unchecked(&urb->dev->urbnum);
55767 retval = submit_single_step_set_feature(hcd, urb, 0);
55768 if (!retval && !wait_for_completion_timeout(&done,
55769 msecs_to_jiffies(2000))) {
55770diff --git a/drivers/usb/host/hwa-hc.c b/drivers/usb/host/hwa-hc.c
55771index 1db0626..4948782 100644
55772--- a/drivers/usb/host/hwa-hc.c
55773+++ b/drivers/usb/host/hwa-hc.c
55774@@ -337,7 +337,10 @@ static int __hwahc_op_bwa_set(struct wusbhc *wusbhc, s8 stream_index,
55775 struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc);
55776 struct wahc *wa = &hwahc->wa;
55777 struct device *dev = &wa->usb_iface->dev;
55778- u8 mas_le[UWB_NUM_MAS/8];
55779+ u8 *mas_le = kmalloc(UWB_NUM_MAS/8, GFP_KERNEL);
55780+
55781+ if (mas_le == NULL)
55782+ return -ENOMEM;
55783
55784 /* Set the stream index */
55785 result = usb_control_msg(wa->usb_dev, usb_sndctrlpipe(wa->usb_dev, 0),
55786@@ -356,10 +359,12 @@ static int __hwahc_op_bwa_set(struct wusbhc *wusbhc, s8 stream_index,
55787 WUSB_REQ_SET_WUSB_MAS,
55788 USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE,
55789 0, wa->usb_iface->cur_altsetting->desc.bInterfaceNumber,
55790- mas_le, 32, USB_CTRL_SET_TIMEOUT);
55791+ mas_le, UWB_NUM_MAS/8, USB_CTRL_SET_TIMEOUT);
55792 if (result < 0)
55793 dev_err(dev, "Cannot set WUSB MAS allocation: %d\n", result);
55794 out:
55795+ kfree(mas_le);
55796+
55797 return result;
55798 }
55799
55800diff --git a/drivers/usb/misc/appledisplay.c b/drivers/usb/misc/appledisplay.c
55801index b3d245e..99549ed 100644
55802--- a/drivers/usb/misc/appledisplay.c
55803+++ b/drivers/usb/misc/appledisplay.c
55804@@ -84,7 +84,7 @@ struct appledisplay {
55805 struct mutex sysfslock; /* concurrent read and write */
55806 };
55807
55808-static atomic_t count_displays = ATOMIC_INIT(0);
55809+static atomic_unchecked_t count_displays = ATOMIC_INIT(0);
55810 static struct workqueue_struct *wq;
55811
55812 static void appledisplay_complete(struct urb *urb)
55813@@ -288,7 +288,7 @@ static int appledisplay_probe(struct usb_interface *iface,
55814
55815 /* Register backlight device */
55816 snprintf(bl_name, sizeof(bl_name), "appledisplay%d",
55817- atomic_inc_return(&count_displays) - 1);
55818+ atomic_inc_return_unchecked(&count_displays) - 1);
55819 memset(&props, 0, sizeof(struct backlight_properties));
55820 props.type = BACKLIGHT_RAW;
55821 props.max_brightness = 0xff;
55822diff --git a/drivers/usb/serial/console.c b/drivers/usb/serial/console.c
55823index 3806e70..55c508b 100644
55824--- a/drivers/usb/serial/console.c
55825+++ b/drivers/usb/serial/console.c
55826@@ -126,7 +126,7 @@ static int usb_console_setup(struct console *co, char *options)
55827
55828 info->port = port;
55829
55830- ++port->port.count;
55831+ atomic_inc(&port->port.count);
55832 if (!test_bit(ASYNCB_INITIALIZED, &port->port.flags)) {
55833 if (serial->type->set_termios) {
55834 /*
55835@@ -175,7 +175,7 @@ static int usb_console_setup(struct console *co, char *options)
55836 }
55837 /* Now that any required fake tty operations are completed restore
55838 * the tty port count */
55839- --port->port.count;
55840+ atomic_dec(&port->port.count);
55841 /* The console is special in terms of closing the device so
55842 * indicate this port is now acting as a system console. */
55843 port->port.console = 1;
55844@@ -188,7 +188,7 @@ static int usb_console_setup(struct console *co, char *options)
55845 put_tty:
55846 tty_kref_put(tty);
55847 reset_open_count:
55848- port->port.count = 0;
55849+ atomic_set(&port->port.count, 0);
55850 usb_autopm_put_interface(serial->interface);
55851 error_get_interface:
55852 usb_serial_put(serial);
55853@@ -199,7 +199,7 @@ static int usb_console_setup(struct console *co, char *options)
55854 static void usb_console_write(struct console *co,
55855 const char *buf, unsigned count)
55856 {
55857- static struct usbcons_info *info = &usbcons_info;
55858+ struct usbcons_info *info = &usbcons_info;
55859 struct usb_serial_port *port = info->port;
55860 struct usb_serial *serial;
55861 int retval = -ENODEV;
55862diff --git a/drivers/usb/storage/usb.h b/drivers/usb/storage/usb.h
55863index 307e339..6aa97cb 100644
55864--- a/drivers/usb/storage/usb.h
55865+++ b/drivers/usb/storage/usb.h
55866@@ -63,7 +63,7 @@ struct us_unusual_dev {
55867 __u8 useProtocol;
55868 __u8 useTransport;
55869 int (*initFunction)(struct us_data *);
55870-};
55871+} __do_const;
55872
55873
55874 /* Dynamic bitflag definitions (us->dflags): used in set_bit() etc. */
55875diff --git a/drivers/usb/usbip/vhci.h b/drivers/usb/usbip/vhci.h
55876index a863a98..d272795 100644
55877--- a/drivers/usb/usbip/vhci.h
55878+++ b/drivers/usb/usbip/vhci.h
55879@@ -83,7 +83,7 @@ struct vhci_hcd {
55880 unsigned resuming:1;
55881 unsigned long re_timeout;
55882
55883- atomic_t seqnum;
55884+ atomic_unchecked_t seqnum;
55885
55886 /*
55887 * NOTE:
55888diff --git a/drivers/usb/usbip/vhci_hcd.c b/drivers/usb/usbip/vhci_hcd.c
55889index 11f6f61..1087910 100644
55890--- a/drivers/usb/usbip/vhci_hcd.c
55891+++ b/drivers/usb/usbip/vhci_hcd.c
55892@@ -440,7 +440,7 @@ static void vhci_tx_urb(struct urb *urb)
55893
55894 spin_lock(&vdev->priv_lock);
55895
55896- priv->seqnum = atomic_inc_return(&the_controller->seqnum);
55897+ priv->seqnum = atomic_inc_return_unchecked(&the_controller->seqnum);
55898 if (priv->seqnum == 0xffff)
55899 dev_info(&urb->dev->dev, "seqnum max\n");
55900
55901@@ -685,7 +685,7 @@ static int vhci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status)
55902 return -ENOMEM;
55903 }
55904
55905- unlink->seqnum = atomic_inc_return(&the_controller->seqnum);
55906+ unlink->seqnum = atomic_inc_return_unchecked(&the_controller->seqnum);
55907 if (unlink->seqnum == 0xffff)
55908 pr_info("seqnum max\n");
55909
55910@@ -889,7 +889,7 @@ static int vhci_start(struct usb_hcd *hcd)
55911 vdev->rhport = rhport;
55912 }
55913
55914- atomic_set(&vhci->seqnum, 0);
55915+ atomic_set_unchecked(&vhci->seqnum, 0);
55916 spin_lock_init(&vhci->lock);
55917
55918 hcd->power_budget = 0; /* no limit */
55919diff --git a/drivers/usb/usbip/vhci_rx.c b/drivers/usb/usbip/vhci_rx.c
55920index 00e4a54..d676f85 100644
55921--- a/drivers/usb/usbip/vhci_rx.c
55922+++ b/drivers/usb/usbip/vhci_rx.c
55923@@ -80,7 +80,7 @@ static void vhci_recv_ret_submit(struct vhci_device *vdev,
55924 if (!urb) {
55925 pr_err("cannot find a urb of seqnum %u\n", pdu->base.seqnum);
55926 pr_info("max seqnum %d\n",
55927- atomic_read(&the_controller->seqnum));
55928+ atomic_read_unchecked(&the_controller->seqnum));
55929 usbip_event_add(ud, VDEV_EVENT_ERROR_TCP);
55930 return;
55931 }
55932diff --git a/drivers/usb/wusbcore/wa-hc.h b/drivers/usb/wusbcore/wa-hc.h
55933index edc7267..9f65ce2 100644
55934--- a/drivers/usb/wusbcore/wa-hc.h
55935+++ b/drivers/usb/wusbcore/wa-hc.h
55936@@ -240,7 +240,7 @@ struct wahc {
55937 spinlock_t xfer_list_lock;
55938 struct work_struct xfer_enqueue_work;
55939 struct work_struct xfer_error_work;
55940- atomic_t xfer_id_count;
55941+ atomic_unchecked_t xfer_id_count;
55942
55943 kernel_ulong_t quirks;
55944 };
55945@@ -305,7 +305,7 @@ static inline void wa_init(struct wahc *wa)
55946 INIT_WORK(&wa->xfer_enqueue_work, wa_urb_enqueue_run);
55947 INIT_WORK(&wa->xfer_error_work, wa_process_errored_transfers_run);
55948 wa->dto_in_use = 0;
55949- atomic_set(&wa->xfer_id_count, 1);
55950+ atomic_set_unchecked(&wa->xfer_id_count, 1);
55951 /* init the buf in URBs */
55952 for (index = 0; index < WA_MAX_BUF_IN_URBS; ++index)
55953 usb_init_urb(&(wa->buf_in_urbs[index]));
55954diff --git a/drivers/usb/wusbcore/wa-xfer.c b/drivers/usb/wusbcore/wa-xfer.c
55955index 69af4fd..da390d7 100644
55956--- a/drivers/usb/wusbcore/wa-xfer.c
55957+++ b/drivers/usb/wusbcore/wa-xfer.c
55958@@ -314,7 +314,7 @@ static void wa_xfer_completion(struct wa_xfer *xfer)
55959 */
55960 static void wa_xfer_id_init(struct wa_xfer *xfer)
55961 {
55962- xfer->id = atomic_add_return(1, &xfer->wa->xfer_id_count);
55963+ xfer->id = atomic_add_return_unchecked(1, &xfer->wa->xfer_id_count);
55964 }
55965
55966 /* Return the xfer's ID. */
55967diff --git a/drivers/vfio/vfio.c b/drivers/vfio/vfio.c
55968index 837d177..170724af 100644
55969--- a/drivers/vfio/vfio.c
55970+++ b/drivers/vfio/vfio.c
55971@@ -518,7 +518,7 @@ static int vfio_group_nb_add_dev(struct vfio_group *group, struct device *dev)
55972 return 0;
55973
55974 /* TODO Prevent device auto probing */
55975- WARN("Device %s added to live group %d!\n", dev_name(dev),
55976+ WARN(1, "Device %s added to live group %d!\n", dev_name(dev),
55977 iommu_group_id(group->iommu_group));
55978
55979 return 0;
55980diff --git a/drivers/vhost/vringh.c b/drivers/vhost/vringh.c
55981index 3bb02c6..a01ff38 100644
55982--- a/drivers/vhost/vringh.c
55983+++ b/drivers/vhost/vringh.c
55984@@ -551,7 +551,7 @@ static inline void __vringh_notify_disable(struct vringh *vrh,
55985 static inline int getu16_user(const struct vringh *vrh, u16 *val, const __virtio16 *p)
55986 {
55987 __virtio16 v = 0;
55988- int rc = get_user(v, (__force __virtio16 __user *)p);
55989+ int rc = get_user(v, (__force_user __virtio16 *)p);
55990 *val = vringh16_to_cpu(vrh, v);
55991 return rc;
55992 }
55993@@ -559,12 +559,12 @@ static inline int getu16_user(const struct vringh *vrh, u16 *val, const __virtio
55994 static inline int putu16_user(const struct vringh *vrh, __virtio16 *p, u16 val)
55995 {
55996 __virtio16 v = cpu_to_vringh16(vrh, val);
55997- return put_user(v, (__force __virtio16 __user *)p);
55998+ return put_user(v, (__force_user __virtio16 *)p);
55999 }
56000
56001 static inline int copydesc_user(void *dst, const void *src, size_t len)
56002 {
56003- return copy_from_user(dst, (__force void __user *)src, len) ?
56004+ return copy_from_user(dst, (void __force_user *)src, len) ?
56005 -EFAULT : 0;
56006 }
56007
56008@@ -572,19 +572,19 @@ static inline int putused_user(struct vring_used_elem *dst,
56009 const struct vring_used_elem *src,
56010 unsigned int num)
56011 {
56012- return copy_to_user((__force void __user *)dst, src,
56013+ return copy_to_user((void __force_user *)dst, src,
56014 sizeof(*dst) * num) ? -EFAULT : 0;
56015 }
56016
56017 static inline int xfer_from_user(void *src, void *dst, size_t len)
56018 {
56019- return copy_from_user(dst, (__force void __user *)src, len) ?
56020+ return copy_from_user(dst, (void __force_user *)src, len) ?
56021 -EFAULT : 0;
56022 }
56023
56024 static inline int xfer_to_user(void *dst, void *src, size_t len)
56025 {
56026- return copy_to_user((__force void __user *)dst, src, len) ?
56027+ return copy_to_user((void __force_user *)dst, src, len) ?
56028 -EFAULT : 0;
56029 }
56030
56031@@ -621,9 +621,9 @@ int vringh_init_user(struct vringh *vrh, u64 features,
56032 vrh->last_used_idx = 0;
56033 vrh->vring.num = num;
56034 /* vring expects kernel addresses, but only used via accessors. */
56035- vrh->vring.desc = (__force struct vring_desc *)desc;
56036- vrh->vring.avail = (__force struct vring_avail *)avail;
56037- vrh->vring.used = (__force struct vring_used *)used;
56038+ vrh->vring.desc = (__force_kernel struct vring_desc *)desc;
56039+ vrh->vring.avail = (__force_kernel struct vring_avail *)avail;
56040+ vrh->vring.used = (__force_kernel struct vring_used *)used;
56041 return 0;
56042 }
56043 EXPORT_SYMBOL(vringh_init_user);
56044@@ -826,7 +826,7 @@ static inline int getu16_kern(const struct vringh *vrh,
56045
56046 static inline int putu16_kern(const struct vringh *vrh, __virtio16 *p, u16 val)
56047 {
56048- ACCESS_ONCE(*p) = cpu_to_vringh16(vrh, val);
56049+ ACCESS_ONCE_RW(*p) = cpu_to_vringh16(vrh, val);
56050 return 0;
56051 }
56052
56053diff --git a/drivers/video/backlight/kb3886_bl.c b/drivers/video/backlight/kb3886_bl.c
56054index 84a110a..96312c3 100644
56055--- a/drivers/video/backlight/kb3886_bl.c
56056+++ b/drivers/video/backlight/kb3886_bl.c
56057@@ -78,7 +78,7 @@ static struct kb3886bl_machinfo *bl_machinfo;
56058 static unsigned long kb3886bl_flags;
56059 #define KB3886BL_SUSPENDED 0x01
56060
56061-static struct dmi_system_id kb3886bl_device_table[] __initdata = {
56062+static const struct dmi_system_id kb3886bl_device_table[] __initconst = {
56063 {
56064 .ident = "Sahara Touch-iT",
56065 .matches = {
56066diff --git a/drivers/video/fbdev/arcfb.c b/drivers/video/fbdev/arcfb.c
56067index 1b0b233..6f34c2c 100644
56068--- a/drivers/video/fbdev/arcfb.c
56069+++ b/drivers/video/fbdev/arcfb.c
56070@@ -458,7 +458,7 @@ static ssize_t arcfb_write(struct fb_info *info, const char __user *buf,
56071 return -ENOSPC;
56072
56073 err = 0;
56074- if ((count + p) > fbmemlength) {
56075+ if (count > (fbmemlength - p)) {
56076 count = fbmemlength - p;
56077 err = -ENOSPC;
56078 }
56079diff --git a/drivers/video/fbdev/aty/aty128fb.c b/drivers/video/fbdev/aty/aty128fb.c
56080index aedf2fb..47c9aca 100644
56081--- a/drivers/video/fbdev/aty/aty128fb.c
56082+++ b/drivers/video/fbdev/aty/aty128fb.c
56083@@ -149,7 +149,7 @@ enum {
56084 };
56085
56086 /* Must match above enum */
56087-static char * const r128_family[] = {
56088+static const char * const r128_family[] = {
56089 "AGP",
56090 "PCI",
56091 "PRO AGP",
56092diff --git a/drivers/video/fbdev/aty/atyfb_base.c b/drivers/video/fbdev/aty/atyfb_base.c
56093index 8789e48..698fe4c 100644
56094--- a/drivers/video/fbdev/aty/atyfb_base.c
56095+++ b/drivers/video/fbdev/aty/atyfb_base.c
56096@@ -1326,10 +1326,14 @@ static int atyfb_set_par(struct fb_info *info)
56097 par->accel_flags = var->accel_flags; /* hack */
56098
56099 if (var->accel_flags) {
56100- info->fbops->fb_sync = atyfb_sync;
56101+ pax_open_kernel();
56102+ *(void **)&info->fbops->fb_sync = atyfb_sync;
56103+ pax_close_kernel();
56104 info->flags &= ~FBINFO_HWACCEL_DISABLED;
56105 } else {
56106- info->fbops->fb_sync = NULL;
56107+ pax_open_kernel();
56108+ *(void **)&info->fbops->fb_sync = NULL;
56109+ pax_close_kernel();
56110 info->flags |= FBINFO_HWACCEL_DISABLED;
56111 }
56112
56113diff --git a/drivers/video/fbdev/aty/mach64_cursor.c b/drivers/video/fbdev/aty/mach64_cursor.c
56114index 2fa0317..4983f2a 100644
56115--- a/drivers/video/fbdev/aty/mach64_cursor.c
56116+++ b/drivers/video/fbdev/aty/mach64_cursor.c
56117@@ -8,6 +8,7 @@
56118 #include "../core/fb_draw.h"
56119
56120 #include <asm/io.h>
56121+#include <asm/pgtable.h>
56122
56123 #ifdef __sparc__
56124 #include <asm/fbio.h>
56125@@ -218,7 +219,9 @@ int aty_init_cursor(struct fb_info *info)
56126 info->sprite.buf_align = 16; /* and 64 lines tall. */
56127 info->sprite.flags = FB_PIXMAP_IO;
56128
56129- info->fbops->fb_cursor = atyfb_cursor;
56130+ pax_open_kernel();
56131+ *(void **)&info->fbops->fb_cursor = atyfb_cursor;
56132+ pax_close_kernel();
56133
56134 return 0;
56135 }
56136diff --git a/drivers/video/fbdev/core/fb_defio.c b/drivers/video/fbdev/core/fb_defio.c
56137index d6cab1f..112f680 100644
56138--- a/drivers/video/fbdev/core/fb_defio.c
56139+++ b/drivers/video/fbdev/core/fb_defio.c
56140@@ -207,7 +207,9 @@ void fb_deferred_io_init(struct fb_info *info)
56141
56142 BUG_ON(!fbdefio);
56143 mutex_init(&fbdefio->lock);
56144- info->fbops->fb_mmap = fb_deferred_io_mmap;
56145+ pax_open_kernel();
56146+ *(void **)&info->fbops->fb_mmap = fb_deferred_io_mmap;
56147+ pax_close_kernel();
56148 INIT_DELAYED_WORK(&info->deferred_work, fb_deferred_io_work);
56149 INIT_LIST_HEAD(&fbdefio->pagelist);
56150 if (fbdefio->delay == 0) /* set a default of 1 s */
56151@@ -238,7 +240,7 @@ void fb_deferred_io_cleanup(struct fb_info *info)
56152 page->mapping = NULL;
56153 }
56154
56155- info->fbops->fb_mmap = NULL;
56156+ *(void **)&info->fbops->fb_mmap = NULL;
56157 mutex_destroy(&fbdefio->lock);
56158 }
56159 EXPORT_SYMBOL_GPL(fb_deferred_io_cleanup);
56160diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
56161index 0705d88..d9429bf 100644
56162--- a/drivers/video/fbdev/core/fbmem.c
56163+++ b/drivers/video/fbdev/core/fbmem.c
56164@@ -1301,7 +1301,7 @@ static int do_fscreeninfo_to_user(struct fb_fix_screeninfo *fix,
56165 __u32 data;
56166 int err;
56167
56168- err = copy_to_user(&fix32->id, &fix->id, sizeof(fix32->id));
56169+ err = copy_to_user(fix32->id, &fix->id, sizeof(fix32->id));
56170
56171 data = (__u32) (unsigned long) fix->smem_start;
56172 err |= put_user(data, &fix32->smem_start);
56173diff --git a/drivers/video/fbdev/hyperv_fb.c b/drivers/video/fbdev/hyperv_fb.c
56174index 4254336..282567e 100644
56175--- a/drivers/video/fbdev/hyperv_fb.c
56176+++ b/drivers/video/fbdev/hyperv_fb.c
56177@@ -240,7 +240,7 @@ static uint screen_fb_size;
56178 static inline int synthvid_send(struct hv_device *hdev,
56179 struct synthvid_msg *msg)
56180 {
56181- static atomic64_t request_id = ATOMIC64_INIT(0);
56182+ static atomic64_unchecked_t request_id = ATOMIC64_INIT(0);
56183 int ret;
56184
56185 msg->pipe_hdr.type = PIPE_MSG_DATA;
56186@@ -248,7 +248,7 @@ static inline int synthvid_send(struct hv_device *hdev,
56187
56188 ret = vmbus_sendpacket(hdev->channel, msg,
56189 msg->vid_hdr.size + sizeof(struct pipe_msg_hdr),
56190- atomic64_inc_return(&request_id),
56191+ atomic64_inc_return_unchecked(&request_id),
56192 VM_PKT_DATA_INBAND, 0);
56193
56194 if (ret)
56195diff --git a/drivers/video/fbdev/i810/i810_accel.c b/drivers/video/fbdev/i810/i810_accel.c
56196index 7672d2e..b56437f 100644
56197--- a/drivers/video/fbdev/i810/i810_accel.c
56198+++ b/drivers/video/fbdev/i810/i810_accel.c
56199@@ -73,6 +73,7 @@ static inline int wait_for_space(struct fb_info *info, u32 space)
56200 }
56201 }
56202 printk("ringbuffer lockup!!!\n");
56203+ printk("head:%u tail:%u iring.size:%u space:%u\n", head, tail, par->iring.size, space);
56204 i810_report_error(mmio);
56205 par->dev_flags |= LOCKUP;
56206 info->pixmap.scan_align = 1;
56207diff --git a/drivers/video/fbdev/matrox/matroxfb_DAC1064.c b/drivers/video/fbdev/matrox/matroxfb_DAC1064.c
56208index a01147f..5d896f8 100644
56209--- a/drivers/video/fbdev/matrox/matroxfb_DAC1064.c
56210+++ b/drivers/video/fbdev/matrox/matroxfb_DAC1064.c
56211@@ -1088,14 +1088,20 @@ static void MGAG100_restore(struct matrox_fb_info *minfo)
56212
56213 #ifdef CONFIG_FB_MATROX_MYSTIQUE
56214 struct matrox_switch matrox_mystique = {
56215- MGA1064_preinit, MGA1064_reset, MGA1064_init, MGA1064_restore,
56216+ .preinit = MGA1064_preinit,
56217+ .reset = MGA1064_reset,
56218+ .init = MGA1064_init,
56219+ .restore = MGA1064_restore,
56220 };
56221 EXPORT_SYMBOL(matrox_mystique);
56222 #endif
56223
56224 #ifdef CONFIG_FB_MATROX_G
56225 struct matrox_switch matrox_G100 = {
56226- MGAG100_preinit, MGAG100_reset, MGAG100_init, MGAG100_restore,
56227+ .preinit = MGAG100_preinit,
56228+ .reset = MGAG100_reset,
56229+ .init = MGAG100_init,
56230+ .restore = MGAG100_restore,
56231 };
56232 EXPORT_SYMBOL(matrox_G100);
56233 #endif
56234diff --git a/drivers/video/fbdev/matrox/matroxfb_Ti3026.c b/drivers/video/fbdev/matrox/matroxfb_Ti3026.c
56235index 195ad7c..09743fc 100644
56236--- a/drivers/video/fbdev/matrox/matroxfb_Ti3026.c
56237+++ b/drivers/video/fbdev/matrox/matroxfb_Ti3026.c
56238@@ -738,7 +738,10 @@ static int Ti3026_preinit(struct matrox_fb_info *minfo)
56239 }
56240
56241 struct matrox_switch matrox_millennium = {
56242- Ti3026_preinit, Ti3026_reset, Ti3026_init, Ti3026_restore
56243+ .preinit = Ti3026_preinit,
56244+ .reset = Ti3026_reset,
56245+ .init = Ti3026_init,
56246+ .restore = Ti3026_restore
56247 };
56248 EXPORT_SYMBOL(matrox_millennium);
56249 #endif
56250diff --git a/drivers/video/fbdev/mb862xx/mb862xxfb_accel.c b/drivers/video/fbdev/mb862xx/mb862xxfb_accel.c
56251index fe92eed..106e085 100644
56252--- a/drivers/video/fbdev/mb862xx/mb862xxfb_accel.c
56253+++ b/drivers/video/fbdev/mb862xx/mb862xxfb_accel.c
56254@@ -312,14 +312,18 @@ void mb862xxfb_init_accel(struct fb_info *info, int xres)
56255 struct mb862xxfb_par *par = info->par;
56256
56257 if (info->var.bits_per_pixel == 32) {
56258- info->fbops->fb_fillrect = cfb_fillrect;
56259- info->fbops->fb_copyarea = cfb_copyarea;
56260- info->fbops->fb_imageblit = cfb_imageblit;
56261+ pax_open_kernel();
56262+ *(void **)&info->fbops->fb_fillrect = cfb_fillrect;
56263+ *(void **)&info->fbops->fb_copyarea = cfb_copyarea;
56264+ *(void **)&info->fbops->fb_imageblit = cfb_imageblit;
56265+ pax_close_kernel();
56266 } else {
56267 outreg(disp, GC_L0EM, 3);
56268- info->fbops->fb_fillrect = mb86290fb_fillrect;
56269- info->fbops->fb_copyarea = mb86290fb_copyarea;
56270- info->fbops->fb_imageblit = mb86290fb_imageblit;
56271+ pax_open_kernel();
56272+ *(void **)&info->fbops->fb_fillrect = mb86290fb_fillrect;
56273+ *(void **)&info->fbops->fb_copyarea = mb86290fb_copyarea;
56274+ *(void **)&info->fbops->fb_imageblit = mb86290fb_imageblit;
56275+ pax_close_kernel();
56276 }
56277 outreg(draw, GDC_REG_DRAW_BASE, 0);
56278 outreg(draw, GDC_REG_MODE_MISC, 0x8000);
56279diff --git a/drivers/video/fbdev/nvidia/nvidia.c b/drivers/video/fbdev/nvidia/nvidia.c
56280index def0412..fed6529 100644
56281--- a/drivers/video/fbdev/nvidia/nvidia.c
56282+++ b/drivers/video/fbdev/nvidia/nvidia.c
56283@@ -669,19 +669,23 @@ static int nvidiafb_set_par(struct fb_info *info)
56284 info->fix.line_length = (info->var.xres_virtual *
56285 info->var.bits_per_pixel) >> 3;
56286 if (info->var.accel_flags) {
56287- info->fbops->fb_imageblit = nvidiafb_imageblit;
56288- info->fbops->fb_fillrect = nvidiafb_fillrect;
56289- info->fbops->fb_copyarea = nvidiafb_copyarea;
56290- info->fbops->fb_sync = nvidiafb_sync;
56291+ pax_open_kernel();
56292+ *(void **)&info->fbops->fb_imageblit = nvidiafb_imageblit;
56293+ *(void **)&info->fbops->fb_fillrect = nvidiafb_fillrect;
56294+ *(void **)&info->fbops->fb_copyarea = nvidiafb_copyarea;
56295+ *(void **)&info->fbops->fb_sync = nvidiafb_sync;
56296+ pax_close_kernel();
56297 info->pixmap.scan_align = 4;
56298 info->flags &= ~FBINFO_HWACCEL_DISABLED;
56299 info->flags |= FBINFO_READS_FAST;
56300 NVResetGraphics(info);
56301 } else {
56302- info->fbops->fb_imageblit = cfb_imageblit;
56303- info->fbops->fb_fillrect = cfb_fillrect;
56304- info->fbops->fb_copyarea = cfb_copyarea;
56305- info->fbops->fb_sync = NULL;
56306+ pax_open_kernel();
56307+ *(void **)&info->fbops->fb_imageblit = cfb_imageblit;
56308+ *(void **)&info->fbops->fb_fillrect = cfb_fillrect;
56309+ *(void **)&info->fbops->fb_copyarea = cfb_copyarea;
56310+ *(void **)&info->fbops->fb_sync = NULL;
56311+ pax_close_kernel();
56312 info->pixmap.scan_align = 1;
56313 info->flags |= FBINFO_HWACCEL_DISABLED;
56314 info->flags &= ~FBINFO_READS_FAST;
56315@@ -1173,8 +1177,11 @@ static int nvidia_set_fbinfo(struct fb_info *info)
56316 info->pixmap.size = 8 * 1024;
56317 info->pixmap.flags = FB_PIXMAP_SYSTEM;
56318
56319- if (!hwcur)
56320- info->fbops->fb_cursor = NULL;
56321+ if (!hwcur) {
56322+ pax_open_kernel();
56323+ *(void **)&info->fbops->fb_cursor = NULL;
56324+ pax_close_kernel();
56325+ }
56326
56327 info->var.accel_flags = (!noaccel);
56328
56329diff --git a/drivers/video/fbdev/omap2/dss/display.c b/drivers/video/fbdev/omap2/dss/display.c
56330index 2412a0d..294215b 100644
56331--- a/drivers/video/fbdev/omap2/dss/display.c
56332+++ b/drivers/video/fbdev/omap2/dss/display.c
56333@@ -161,12 +161,14 @@ int omapdss_register_display(struct omap_dss_device *dssdev)
56334 if (dssdev->name == NULL)
56335 dssdev->name = dssdev->alias;
56336
56337+ pax_open_kernel();
56338 if (drv && drv->get_resolution == NULL)
56339- drv->get_resolution = omapdss_default_get_resolution;
56340+ *(void **)&drv->get_resolution = omapdss_default_get_resolution;
56341 if (drv && drv->get_recommended_bpp == NULL)
56342- drv->get_recommended_bpp = omapdss_default_get_recommended_bpp;
56343+ *(void **)&drv->get_recommended_bpp = omapdss_default_get_recommended_bpp;
56344 if (drv && drv->get_timings == NULL)
56345- drv->get_timings = omapdss_default_get_timings;
56346+ *(void **)&drv->get_timings = omapdss_default_get_timings;
56347+ pax_close_kernel();
56348
56349 mutex_lock(&panel_list_mutex);
56350 list_add_tail(&dssdev->panel_list, &panel_list);
56351diff --git a/drivers/video/fbdev/s1d13xxxfb.c b/drivers/video/fbdev/s1d13xxxfb.c
56352index 83433cb..71e9b98 100644
56353--- a/drivers/video/fbdev/s1d13xxxfb.c
56354+++ b/drivers/video/fbdev/s1d13xxxfb.c
56355@@ -881,8 +881,10 @@ static int s1d13xxxfb_probe(struct platform_device *pdev)
56356
56357 switch(prod_id) {
56358 case S1D13506_PROD_ID: /* activate acceleration */
56359- s1d13xxxfb_fbops.fb_fillrect = s1d13xxxfb_bitblt_solidfill;
56360- s1d13xxxfb_fbops.fb_copyarea = s1d13xxxfb_bitblt_copyarea;
56361+ pax_open_kernel();
56362+ *(void **)&s1d13xxxfb_fbops.fb_fillrect = s1d13xxxfb_bitblt_solidfill;
56363+ *(void **)&s1d13xxxfb_fbops.fb_copyarea = s1d13xxxfb_bitblt_copyarea;
56364+ pax_close_kernel();
56365 info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN |
56366 FBINFO_HWACCEL_FILLRECT | FBINFO_HWACCEL_COPYAREA;
56367 break;
56368diff --git a/drivers/video/fbdev/sh_mobile_lcdcfb.c b/drivers/video/fbdev/sh_mobile_lcdcfb.c
56369index d3013cd..95b8285 100644
56370--- a/drivers/video/fbdev/sh_mobile_lcdcfb.c
56371+++ b/drivers/video/fbdev/sh_mobile_lcdcfb.c
56372@@ -439,9 +439,9 @@ static unsigned long lcdc_sys_read_data(void *handle)
56373 }
56374
56375 static struct sh_mobile_lcdc_sys_bus_ops sh_mobile_lcdc_sys_bus_ops = {
56376- lcdc_sys_write_index,
56377- lcdc_sys_write_data,
56378- lcdc_sys_read_data,
56379+ .write_index = lcdc_sys_write_index,
56380+ .write_data = lcdc_sys_write_data,
56381+ .read_data = lcdc_sys_read_data,
56382 };
56383
56384 static int sh_mobile_lcdc_sginit(struct fb_info *info,
56385diff --git a/drivers/video/fbdev/smscufx.c b/drivers/video/fbdev/smscufx.c
56386index 9279e5f..d5f5276 100644
56387--- a/drivers/video/fbdev/smscufx.c
56388+++ b/drivers/video/fbdev/smscufx.c
56389@@ -1174,7 +1174,9 @@ static int ufx_ops_release(struct fb_info *info, int user)
56390 fb_deferred_io_cleanup(info);
56391 kfree(info->fbdefio);
56392 info->fbdefio = NULL;
56393- info->fbops->fb_mmap = ufx_ops_mmap;
56394+ pax_open_kernel();
56395+ *(void **)&info->fbops->fb_mmap = ufx_ops_mmap;
56396+ pax_close_kernel();
56397 }
56398
56399 pr_debug("released /dev/fb%d user=%d count=%d",
56400diff --git a/drivers/video/fbdev/udlfb.c b/drivers/video/fbdev/udlfb.c
56401index ff2b873..626a8d5 100644
56402--- a/drivers/video/fbdev/udlfb.c
56403+++ b/drivers/video/fbdev/udlfb.c
56404@@ -623,11 +623,11 @@ static int dlfb_handle_damage(struct dlfb_data *dev, int x, int y,
56405 dlfb_urb_completion(urb);
56406
56407 error:
56408- atomic_add(bytes_sent, &dev->bytes_sent);
56409- atomic_add(bytes_identical, &dev->bytes_identical);
56410- atomic_add(width*height*2, &dev->bytes_rendered);
56411+ atomic_add_unchecked(bytes_sent, &dev->bytes_sent);
56412+ atomic_add_unchecked(bytes_identical, &dev->bytes_identical);
56413+ atomic_add_unchecked(width*height*2, &dev->bytes_rendered);
56414 end_cycles = get_cycles();
56415- atomic_add(((unsigned int) ((end_cycles - start_cycles)
56416+ atomic_add_unchecked(((unsigned int) ((end_cycles - start_cycles)
56417 >> 10)), /* Kcycles */
56418 &dev->cpu_kcycles_used);
56419
56420@@ -748,11 +748,11 @@ static void dlfb_dpy_deferred_io(struct fb_info *info,
56421 dlfb_urb_completion(urb);
56422
56423 error:
56424- atomic_add(bytes_sent, &dev->bytes_sent);
56425- atomic_add(bytes_identical, &dev->bytes_identical);
56426- atomic_add(bytes_rendered, &dev->bytes_rendered);
56427+ atomic_add_unchecked(bytes_sent, &dev->bytes_sent);
56428+ atomic_add_unchecked(bytes_identical, &dev->bytes_identical);
56429+ atomic_add_unchecked(bytes_rendered, &dev->bytes_rendered);
56430 end_cycles = get_cycles();
56431- atomic_add(((unsigned int) ((end_cycles - start_cycles)
56432+ atomic_add_unchecked(((unsigned int) ((end_cycles - start_cycles)
56433 >> 10)), /* Kcycles */
56434 &dev->cpu_kcycles_used);
56435 }
56436@@ -991,7 +991,9 @@ static int dlfb_ops_release(struct fb_info *info, int user)
56437 fb_deferred_io_cleanup(info);
56438 kfree(info->fbdefio);
56439 info->fbdefio = NULL;
56440- info->fbops->fb_mmap = dlfb_ops_mmap;
56441+ pax_open_kernel();
56442+ *(void **)&info->fbops->fb_mmap = dlfb_ops_mmap;
56443+ pax_close_kernel();
56444 }
56445
56446 pr_warn("released /dev/fb%d user=%d count=%d\n",
56447@@ -1373,7 +1375,7 @@ static ssize_t metrics_bytes_rendered_show(struct device *fbdev,
56448 struct fb_info *fb_info = dev_get_drvdata(fbdev);
56449 struct dlfb_data *dev = fb_info->par;
56450 return snprintf(buf, PAGE_SIZE, "%u\n",
56451- atomic_read(&dev->bytes_rendered));
56452+ atomic_read_unchecked(&dev->bytes_rendered));
56453 }
56454
56455 static ssize_t metrics_bytes_identical_show(struct device *fbdev,
56456@@ -1381,7 +1383,7 @@ static ssize_t metrics_bytes_identical_show(struct device *fbdev,
56457 struct fb_info *fb_info = dev_get_drvdata(fbdev);
56458 struct dlfb_data *dev = fb_info->par;
56459 return snprintf(buf, PAGE_SIZE, "%u\n",
56460- atomic_read(&dev->bytes_identical));
56461+ atomic_read_unchecked(&dev->bytes_identical));
56462 }
56463
56464 static ssize_t metrics_bytes_sent_show(struct device *fbdev,
56465@@ -1389,7 +1391,7 @@ static ssize_t metrics_bytes_sent_show(struct device *fbdev,
56466 struct fb_info *fb_info = dev_get_drvdata(fbdev);
56467 struct dlfb_data *dev = fb_info->par;
56468 return snprintf(buf, PAGE_SIZE, "%u\n",
56469- atomic_read(&dev->bytes_sent));
56470+ atomic_read_unchecked(&dev->bytes_sent));
56471 }
56472
56473 static ssize_t metrics_cpu_kcycles_used_show(struct device *fbdev,
56474@@ -1397,7 +1399,7 @@ static ssize_t metrics_cpu_kcycles_used_show(struct device *fbdev,
56475 struct fb_info *fb_info = dev_get_drvdata(fbdev);
56476 struct dlfb_data *dev = fb_info->par;
56477 return snprintf(buf, PAGE_SIZE, "%u\n",
56478- atomic_read(&dev->cpu_kcycles_used));
56479+ atomic_read_unchecked(&dev->cpu_kcycles_used));
56480 }
56481
56482 static ssize_t edid_show(
56483@@ -1457,10 +1459,10 @@ static ssize_t metrics_reset_store(struct device *fbdev,
56484 struct fb_info *fb_info = dev_get_drvdata(fbdev);
56485 struct dlfb_data *dev = fb_info->par;
56486
56487- atomic_set(&dev->bytes_rendered, 0);
56488- atomic_set(&dev->bytes_identical, 0);
56489- atomic_set(&dev->bytes_sent, 0);
56490- atomic_set(&dev->cpu_kcycles_used, 0);
56491+ atomic_set_unchecked(&dev->bytes_rendered, 0);
56492+ atomic_set_unchecked(&dev->bytes_identical, 0);
56493+ atomic_set_unchecked(&dev->bytes_sent, 0);
56494+ atomic_set_unchecked(&dev->cpu_kcycles_used, 0);
56495
56496 return count;
56497 }
56498diff --git a/drivers/video/fbdev/uvesafb.c b/drivers/video/fbdev/uvesafb.c
56499index d32d1c4..46722e6 100644
56500--- a/drivers/video/fbdev/uvesafb.c
56501+++ b/drivers/video/fbdev/uvesafb.c
56502@@ -19,6 +19,7 @@
56503 #include <linux/io.h>
56504 #include <linux/mutex.h>
56505 #include <linux/slab.h>
56506+#include <linux/moduleloader.h>
56507 #include <video/edid.h>
56508 #include <video/uvesafb.h>
56509 #ifdef CONFIG_X86
56510@@ -565,10 +566,32 @@ static int uvesafb_vbe_getpmi(struct uvesafb_ktask *task,
56511 if ((task->t.regs.eax & 0xffff) != 0x4f || task->t.regs.es < 0xc000) {
56512 par->pmi_setpal = par->ypan = 0;
56513 } else {
56514+
56515+#ifdef CONFIG_PAX_KERNEXEC
56516+#ifdef CONFIG_MODULES
56517+ par->pmi_code = module_alloc_exec((u16)task->t.regs.ecx);
56518+#endif
56519+ if (!par->pmi_code) {
56520+ par->pmi_setpal = par->ypan = 0;
56521+ return 0;
56522+ }
56523+#endif
56524+
56525 par->pmi_base = (u16 *)phys_to_virt(((u32)task->t.regs.es << 4)
56526 + task->t.regs.edi);
56527+
56528+#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
56529+ pax_open_kernel();
56530+ memcpy(par->pmi_code, par->pmi_base, (u16)task->t.regs.ecx);
56531+ pax_close_kernel();
56532+
56533+ par->pmi_start = ktva_ktla(par->pmi_code + par->pmi_base[1]);
56534+ par->pmi_pal = ktva_ktla(par->pmi_code + par->pmi_base[2]);
56535+#else
56536 par->pmi_start = (u8 *)par->pmi_base + par->pmi_base[1];
56537 par->pmi_pal = (u8 *)par->pmi_base + par->pmi_base[2];
56538+#endif
56539+
56540 printk(KERN_INFO "uvesafb: protected mode interface info at "
56541 "%04x:%04x\n",
56542 (u16)task->t.regs.es, (u16)task->t.regs.edi);
56543@@ -813,13 +836,14 @@ static int uvesafb_vbe_init(struct fb_info *info)
56544 par->ypan = ypan;
56545
56546 if (par->pmi_setpal || par->ypan) {
56547+#if !defined(CONFIG_MODULES) || !defined(CONFIG_PAX_KERNEXEC)
56548 if (__supported_pte_mask & _PAGE_NX) {
56549 par->pmi_setpal = par->ypan = 0;
56550 printk(KERN_WARNING "uvesafb: NX protection is active, "
56551 "better not use the PMI.\n");
56552- } else {
56553+ } else
56554+#endif
56555 uvesafb_vbe_getpmi(task, par);
56556- }
56557 }
56558 #else
56559 /* The protected mode interface is not available on non-x86. */
56560@@ -1452,8 +1476,11 @@ static void uvesafb_init_info(struct fb_info *info, struct vbe_mode_ib *mode)
56561 info->fix.ywrapstep = (par->ypan > 1) ? 1 : 0;
56562
56563 /* Disable blanking if the user requested so. */
56564- if (!blank)
56565- info->fbops->fb_blank = NULL;
56566+ if (!blank) {
56567+ pax_open_kernel();
56568+ *(void **)&info->fbops->fb_blank = NULL;
56569+ pax_close_kernel();
56570+ }
56571
56572 /*
56573 * Find out how much IO memory is required for the mode with
56574@@ -1524,8 +1551,11 @@ static void uvesafb_init_info(struct fb_info *info, struct vbe_mode_ib *mode)
56575 info->flags = FBINFO_FLAG_DEFAULT |
56576 (par->ypan ? FBINFO_HWACCEL_YPAN : 0);
56577
56578- if (!par->ypan)
56579- info->fbops->fb_pan_display = NULL;
56580+ if (!par->ypan) {
56581+ pax_open_kernel();
56582+ *(void **)&info->fbops->fb_pan_display = NULL;
56583+ pax_close_kernel();
56584+ }
56585 }
56586
56587 static void uvesafb_init_mtrr(struct fb_info *info)
56588@@ -1786,6 +1816,11 @@ out_mode:
56589 out:
56590 kfree(par->vbe_modes);
56591
56592+#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
56593+ if (par->pmi_code)
56594+ module_memfree_exec(par->pmi_code);
56595+#endif
56596+
56597 framebuffer_release(info);
56598 return err;
56599 }
56600@@ -1810,6 +1845,11 @@ static int uvesafb_remove(struct platform_device *dev)
56601 kfree(par->vbe_state_orig);
56602 kfree(par->vbe_state_saved);
56603
56604+#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
56605+ if (par->pmi_code)
56606+ module_memfree_exec(par->pmi_code);
56607+#endif
56608+
56609 framebuffer_release(info);
56610 }
56611 return 0;
56612diff --git a/drivers/video/fbdev/vesafb.c b/drivers/video/fbdev/vesafb.c
56613index d79a0ac..2d0c3d4 100644
56614--- a/drivers/video/fbdev/vesafb.c
56615+++ b/drivers/video/fbdev/vesafb.c
56616@@ -9,6 +9,7 @@
56617 */
56618
56619 #include <linux/module.h>
56620+#include <linux/moduleloader.h>
56621 #include <linux/kernel.h>
56622 #include <linux/errno.h>
56623 #include <linux/string.h>
56624@@ -52,8 +53,8 @@ static int vram_remap; /* Set amount of memory to be used */
56625 static int vram_total; /* Set total amount of memory */
56626 static int pmi_setpal __read_mostly = 1; /* pmi for palette changes ??? */
56627 static int ypan __read_mostly; /* 0..nothing, 1..ypan, 2..ywrap */
56628-static void (*pmi_start)(void) __read_mostly;
56629-static void (*pmi_pal) (void) __read_mostly;
56630+static void (*pmi_start)(void) __read_only;
56631+static void (*pmi_pal) (void) __read_only;
56632 static int depth __read_mostly;
56633 static int vga_compat __read_mostly;
56634 /* --------------------------------------------------------------------- */
56635@@ -233,6 +234,7 @@ static int vesafb_probe(struct platform_device *dev)
56636 unsigned int size_remap;
56637 unsigned int size_total;
56638 char *option = NULL;
56639+ void *pmi_code = NULL;
56640
56641 /* ignore error return of fb_get_options */
56642 fb_get_options("vesafb", &option);
56643@@ -279,10 +281,6 @@ static int vesafb_probe(struct platform_device *dev)
56644 size_remap = size_total;
56645 vesafb_fix.smem_len = size_remap;
56646
56647-#ifndef __i386__
56648- screen_info.vesapm_seg = 0;
56649-#endif
56650-
56651 if (!request_mem_region(vesafb_fix.smem_start, size_total, "vesafb")) {
56652 printk(KERN_WARNING
56653 "vesafb: cannot reserve video memory at 0x%lx\n",
56654@@ -312,9 +310,21 @@ static int vesafb_probe(struct platform_device *dev)
56655 printk(KERN_INFO "vesafb: mode is %dx%dx%d, linelength=%d, pages=%d\n",
56656 vesafb_defined.xres, vesafb_defined.yres, vesafb_defined.bits_per_pixel, vesafb_fix.line_length, screen_info.pages);
56657
56658+#ifdef __i386__
56659+
56660+#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
56661+ pmi_code = module_alloc_exec(screen_info.vesapm_size);
56662+ if (!pmi_code)
56663+#elif !defined(CONFIG_PAX_KERNEXEC)
56664+ if (0)
56665+#endif
56666+
56667+#endif
56668+ screen_info.vesapm_seg = 0;
56669+
56670 if (screen_info.vesapm_seg) {
56671- printk(KERN_INFO "vesafb: protected mode interface info at %04x:%04x\n",
56672- screen_info.vesapm_seg,screen_info.vesapm_off);
56673+ printk(KERN_INFO "vesafb: protected mode interface info at %04x:%04x %04x bytes\n",
56674+ screen_info.vesapm_seg,screen_info.vesapm_off,screen_info.vesapm_size);
56675 }
56676
56677 if (screen_info.vesapm_seg < 0xc000)
56678@@ -322,9 +332,25 @@ static int vesafb_probe(struct platform_device *dev)
56679
56680 if (ypan || pmi_setpal) {
56681 unsigned short *pmi_base;
56682+
56683 pmi_base = (unsigned short*)phys_to_virt(((unsigned long)screen_info.vesapm_seg << 4) + screen_info.vesapm_off);
56684- pmi_start = (void*)((char*)pmi_base + pmi_base[1]);
56685- pmi_pal = (void*)((char*)pmi_base + pmi_base[2]);
56686+
56687+#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
56688+ pax_open_kernel();
56689+ memcpy(pmi_code, pmi_base, screen_info.vesapm_size);
56690+#else
56691+ pmi_code = pmi_base;
56692+#endif
56693+
56694+ pmi_start = (void*)((char*)pmi_code + pmi_base[1]);
56695+ pmi_pal = (void*)((char*)pmi_code + pmi_base[2]);
56696+
56697+#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
56698+ pmi_start = ktva_ktla(pmi_start);
56699+ pmi_pal = ktva_ktla(pmi_pal);
56700+ pax_close_kernel();
56701+#endif
56702+
56703 printk(KERN_INFO "vesafb: pmi: set display start = %p, set palette = %p\n",pmi_start,pmi_pal);
56704 if (pmi_base[3]) {
56705 printk(KERN_INFO "vesafb: pmi: ports = ");
56706@@ -477,8 +503,11 @@ static int vesafb_probe(struct platform_device *dev)
56707 info->flags = FBINFO_FLAG_DEFAULT | FBINFO_MISC_FIRMWARE |
56708 (ypan ? FBINFO_HWACCEL_YPAN : 0);
56709
56710- if (!ypan)
56711- info->fbops->fb_pan_display = NULL;
56712+ if (!ypan) {
56713+ pax_open_kernel();
56714+ *(void **)&info->fbops->fb_pan_display = NULL;
56715+ pax_close_kernel();
56716+ }
56717
56718 if (fb_alloc_cmap(&info->cmap, 256, 0) < 0) {
56719 err = -ENOMEM;
56720@@ -492,6 +521,11 @@ static int vesafb_probe(struct platform_device *dev)
56721 fb_info(info, "%s frame buffer device\n", info->fix.id);
56722 return 0;
56723 err:
56724+
56725+#if defined(__i386__) && defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
56726+ module_memfree_exec(pmi_code);
56727+#endif
56728+
56729 if (info->screen_base)
56730 iounmap(info->screen_base);
56731 framebuffer_release(info);
56732diff --git a/drivers/video/fbdev/via/via_clock.h b/drivers/video/fbdev/via/via_clock.h
56733index 88714ae..16c2e11 100644
56734--- a/drivers/video/fbdev/via/via_clock.h
56735+++ b/drivers/video/fbdev/via/via_clock.h
56736@@ -56,7 +56,7 @@ struct via_clock {
56737
56738 void (*set_engine_pll_state)(u8 state);
56739 void (*set_engine_pll)(struct via_pll_config config);
56740-};
56741+} __no_const;
56742
56743
56744 static inline u32 get_pll_internal_frequency(u32 ref_freq,
56745diff --git a/drivers/video/logo/logo_linux_clut224.ppm b/drivers/video/logo/logo_linux_clut224.ppm
56746index 3c14e43..2630570 100644
56747--- a/drivers/video/logo/logo_linux_clut224.ppm
56748+++ b/drivers/video/logo/logo_linux_clut224.ppm
56749@@ -2,1603 +2,1123 @@ P3
56750 # Standard 224-color Linux logo
56751 80 80
56752 255
56753- 0 0 0 0 0 0 0 0 0 0 0 0
56754- 0 0 0 0 0 0 0 0 0 0 0 0
56755- 0 0 0 0 0 0 0 0 0 0 0 0
56756- 0 0 0 0 0 0 0 0 0 0 0 0
56757- 0 0 0 0 0 0 0 0 0 0 0 0
56758- 0 0 0 0 0 0 0 0 0 0 0 0
56759- 0 0 0 0 0 0 0 0 0 0 0 0
56760- 0 0 0 0 0 0 0 0 0 0 0 0
56761- 0 0 0 0 0 0 0 0 0 0 0 0
56762- 6 6 6 6 6 6 10 10 10 10 10 10
56763- 10 10 10 6 6 6 6 6 6 6 6 6
56764- 0 0 0 0 0 0 0 0 0 0 0 0
56765- 0 0 0 0 0 0 0 0 0 0 0 0
56766- 0 0 0 0 0 0 0 0 0 0 0 0
56767- 0 0 0 0 0 0 0 0 0 0 0 0
56768- 0 0 0 0 0 0 0 0 0 0 0 0
56769- 0 0 0 0 0 0 0 0 0 0 0 0
56770- 0 0 0 0 0 0 0 0 0 0 0 0
56771- 0 0 0 0 0 0 0 0 0 0 0 0
56772- 0 0 0 0 0 0 0 0 0 0 0 0
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56774- 0 0 0 0 0 0 0 0 0 0 0 0
56775- 0 0 0 0 0 0 0 0 0 0 0 0
56776- 0 0 0 0 0 0 0 0 0 0 0 0
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56778- 0 0 0 0 0 0 0 0 0 0 0 0
56779- 0 0 0 0 0 0 0 0 0 0 0 0
56780- 0 0 0 0 0 0 0 0 0 0 0 0
56781- 0 0 0 6 6 6 10 10 10 14 14 14
56782- 22 22 22 26 26 26 30 30 30 34 34 34
56783- 30 30 30 30 30 30 26 26 26 18 18 18
56784- 14 14 14 10 10 10 6 6 6 0 0 0
56785- 0 0 0 0 0 0 0 0 0 0 0 0
56786- 0 0 0 0 0 0 0 0 0 0 0 0
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56792- 0 0 0 0 0 0 0 0 0 0 0 0
56793- 0 0 0 0 0 0 0 0 0 0 0 0
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56799- 0 0 0 0 0 0 0 0 0 0 0 0
56800- 0 0 0 0 0 0 0 0 0 0 0 0
56801- 6 6 6 14 14 14 26 26 26 42 42 42
56802- 54 54 54 66 66 66 78 78 78 78 78 78
56803- 78 78 78 74 74 74 66 66 66 54 54 54
56804- 42 42 42 26 26 26 18 18 18 10 10 10
56805- 6 6 6 0 0 0 0 0 0 0 0 0
56806- 0 0 0 0 0 0 0 0 0 0 0 0
56807- 0 0 0 0 0 0 0 0 0 0 0 0
56808- 0 0 0 0 0 0 0 0 0 0 0 0
56809- 0 0 0 0 0 0 0 0 0 0 0 0
56810- 0 0 0 0 0 0 0 0 0 0 0 0
56811- 0 0 0 0 0 0 0 0 0 0 0 0
56812- 0 0 0 0 0 0 0 0 0 0 0 0
56813- 0 0 0 0 0 0 0 0 0 0 0 0
56814- 0 0 1 0 0 0 0 0 0 0 0 0
56815- 0 0 0 0 0 0 0 0 0 0 0 0
56816- 0 0 0 0 0 0 0 0 0 0 0 0
56817- 0 0 0 0 0 0 0 0 0 0 0 0
56818- 0 0 0 0 0 0 0 0 0 0 0 0
56819- 0 0 0 0 0 0 0 0 0 0 0 0
56820- 0 0 0 0 0 0 0 0 0 10 10 10
56821- 22 22 22 42 42 42 66 66 66 86 86 86
56822- 66 66 66 38 38 38 38 38 38 22 22 22
56823- 26 26 26 34 34 34 54 54 54 66 66 66
56824- 86 86 86 70 70 70 46 46 46 26 26 26
56825- 14 14 14 6 6 6 0 0 0 0 0 0
56826- 0 0 0 0 0 0 0 0 0 0 0 0
56827- 0 0 0 0 0 0 0 0 0 0 0 0
56828- 0 0 0 0 0 0 0 0 0 0 0 0
56829- 0 0 0 0 0 0 0 0 0 0 0 0
56830- 0 0 0 0 0 0 0 0 0 0 0 0
56831- 0 0 0 0 0 0 0 0 0 0 0 0
56832- 0 0 0 0 0 0 0 0 0 0 0 0
56833- 0 0 0 0 0 0 0 0 0 0 0 0
56834- 0 0 1 0 0 1 0 0 1 0 0 0
56835- 0 0 0 0 0 0 0 0 0 0 0 0
56836- 0 0 0 0 0 0 0 0 0 0 0 0
56837- 0 0 0 0 0 0 0 0 0 0 0 0
56838- 0 0 0 0 0 0 0 0 0 0 0 0
56839- 0 0 0 0 0 0 0 0 0 0 0 0
56840- 0 0 0 0 0 0 10 10 10 26 26 26
56841- 50 50 50 82 82 82 58 58 58 6 6 6
56842- 2 2 6 2 2 6 2 2 6 2 2 6
56843- 2 2 6 2 2 6 2 2 6 2 2 6
56844- 6 6 6 54 54 54 86 86 86 66 66 66
56845- 38 38 38 18 18 18 6 6 6 0 0 0
56846- 0 0 0 0 0 0 0 0 0 0 0 0
56847- 0 0 0 0 0 0 0 0 0 0 0 0
56848- 0 0 0 0 0 0 0 0 0 0 0 0
56849- 0 0 0 0 0 0 0 0 0 0 0 0
56850- 0 0 0 0 0 0 0 0 0 0 0 0
56851- 0 0 0 0 0 0 0 0 0 0 0 0
56852- 0 0 0 0 0 0 0 0 0 0 0 0
56853- 0 0 0 0 0 0 0 0 0 0 0 0
56854- 0 0 0 0 0 0 0 0 0 0 0 0
56855- 0 0 0 0 0 0 0 0 0 0 0 0
56856- 0 0 0 0 0 0 0 0 0 0 0 0
56857- 0 0 0 0 0 0 0 0 0 0 0 0
56858- 0 0 0 0 0 0 0 0 0 0 0 0
56859- 0 0 0 0 0 0 0 0 0 0 0 0
56860- 0 0 0 6 6 6 22 22 22 50 50 50
56861- 78 78 78 34 34 34 2 2 6 2 2 6
56862- 2 2 6 2 2 6 2 2 6 2 2 6
56863- 2 2 6 2 2 6 2 2 6 2 2 6
56864- 2 2 6 2 2 6 6 6 6 70 70 70
56865- 78 78 78 46 46 46 22 22 22 6 6 6
56866- 0 0 0 0 0 0 0 0 0 0 0 0
56867- 0 0 0 0 0 0 0 0 0 0 0 0
56868- 0 0 0 0 0 0 0 0 0 0 0 0
56869- 0 0 0 0 0 0 0 0 0 0 0 0
56870- 0 0 0 0 0 0 0 0 0 0 0 0
56871- 0 0 0 0 0 0 0 0 0 0 0 0
56872- 0 0 0 0 0 0 0 0 0 0 0 0
56873- 0 0 0 0 0 0 0 0 0 0 0 0
56874- 0 0 1 0 0 1 0 0 1 0 0 0
56875- 0 0 0 0 0 0 0 0 0 0 0 0
56876- 0 0 0 0 0 0 0 0 0 0 0 0
56877- 0 0 0 0 0 0 0 0 0 0 0 0
56878- 0 0 0 0 0 0 0 0 0 0 0 0
56879- 0 0 0 0 0 0 0 0 0 0 0 0
56880- 6 6 6 18 18 18 42 42 42 82 82 82
56881- 26 26 26 2 2 6 2 2 6 2 2 6
56882- 2 2 6 2 2 6 2 2 6 2 2 6
56883- 2 2 6 2 2 6 2 2 6 14 14 14
56884- 46 46 46 34 34 34 6 6 6 2 2 6
56885- 42 42 42 78 78 78 42 42 42 18 18 18
56886- 6 6 6 0 0 0 0 0 0 0 0 0
56887- 0 0 0 0 0 0 0 0 0 0 0 0
56888- 0 0 0 0 0 0 0 0 0 0 0 0
56889- 0 0 0 0 0 0 0 0 0 0 0 0
56890- 0 0 0 0 0 0 0 0 0 0 0 0
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56894- 0 0 1 0 0 0 0 0 1 0 0 0
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56897- 0 0 0 0 0 0 0 0 0 0 0 0
56898- 0 0 0 0 0 0 0 0 0 0 0 0
56899- 0 0 0 0 0 0 0 0 0 0 0 0
56900- 10 10 10 30 30 30 66 66 66 58 58 58
56901- 2 2 6 2 2 6 2 2 6 2 2 6
56902- 2 2 6 2 2 6 2 2 6 2 2 6
56903- 2 2 6 2 2 6 2 2 6 26 26 26
56904- 86 86 86 101 101 101 46 46 46 10 10 10
56905- 2 2 6 58 58 58 70 70 70 34 34 34
56906- 10 10 10 0 0 0 0 0 0 0 0 0
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56909- 0 0 0 0 0 0 0 0 0 0 0 0
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56921- 2 2 6 2 2 6 2 2 6 2 2 6
56922- 2 2 6 2 2 6 2 2 6 2 2 6
56923- 2 2 6 2 2 6 2 2 6 30 30 30
56924- 94 94 94 94 94 94 58 58 58 26 26 26
56925- 2 2 6 6 6 6 78 78 78 54 54 54
56926- 22 22 22 6 6 6 0 0 0 0 0 0
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56937- 0 0 0 0 0 0 0 0 0 0 0 0
56938- 0 0 0 0 0 0 0 0 0 0 0 0
56939- 0 0 0 0 0 0 0 0 0 6 6 6
56940- 22 22 22 62 62 62 62 62 62 2 2 6
56941- 2 2 6 2 2 6 2 2 6 2 2 6
56942- 2 2 6 2 2 6 2 2 6 2 2 6
56943- 2 2 6 2 2 6 2 2 6 26 26 26
56944- 54 54 54 38 38 38 18 18 18 10 10 10
56945- 2 2 6 2 2 6 34 34 34 82 82 82
56946- 38 38 38 14 14 14 0 0 0 0 0 0
56947- 0 0 0 0 0 0 0 0 0 0 0 0
56948- 0 0 0 0 0 0 0 0 0 0 0 0
56949- 0 0 0 0 0 0 0 0 0 0 0 0
56950- 0 0 0 0 0 0 0 0 0 0 0 0
56951- 0 0 0 0 0 0 0 0 0 0 0 0
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56955- 0 0 0 0 0 0 0 0 0 0 0 0
56956- 0 0 0 0 0 0 0 0 0 0 0 0
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59473diff --git a/drivers/xen/events/events_base.c b/drivers/xen/events/events_base.c
59474index 3838795..0d48d61 100644
59475--- a/drivers/xen/events/events_base.c
59476+++ b/drivers/xen/events/events_base.c
59477@@ -1568,7 +1568,7 @@ void xen_irq_resume(void)
59478 restore_pirqs();
59479 }
59480
59481-static struct irq_chip xen_dynamic_chip __read_mostly = {
59482+static struct irq_chip xen_dynamic_chip = {
59483 .name = "xen-dyn",
59484
59485 .irq_disable = disable_dynirq,
59486@@ -1582,7 +1582,7 @@ static struct irq_chip xen_dynamic_chip __read_mostly = {
59487 .irq_retrigger = retrigger_dynirq,
59488 };
59489
59490-static struct irq_chip xen_pirq_chip __read_mostly = {
59491+static struct irq_chip xen_pirq_chip = {
59492 .name = "xen-pirq",
59493
59494 .irq_startup = startup_pirq,
59495@@ -1602,7 +1602,7 @@ static struct irq_chip xen_pirq_chip __read_mostly = {
59496 .irq_retrigger = retrigger_dynirq,
59497 };
59498
59499-static struct irq_chip xen_percpu_chip __read_mostly = {
59500+static struct irq_chip xen_percpu_chip = {
59501 .name = "xen-percpu",
59502
59503 .irq_disable = disable_dynirq,
59504diff --git a/drivers/xen/xenfs/xenstored.c b/drivers/xen/xenfs/xenstored.c
59505index fef20db..d28b1ab 100644
59506--- a/drivers/xen/xenfs/xenstored.c
59507+++ b/drivers/xen/xenfs/xenstored.c
59508@@ -24,7 +24,12 @@ static int xsd_release(struct inode *inode, struct file *file)
59509 static int xsd_kva_open(struct inode *inode, struct file *file)
59510 {
59511 file->private_data = (void *)kasprintf(GFP_KERNEL, "0x%p",
59512+#ifdef CONFIG_GRKERNSEC_HIDESYM
59513+ NULL);
59514+#else
59515 xen_store_interface);
59516+#endif
59517+
59518 if (!file->private_data)
59519 return -ENOMEM;
59520 return 0;
59521diff --git a/firmware/Makefile b/firmware/Makefile
59522index e297e1b..6900c31 100644
59523--- a/firmware/Makefile
59524+++ b/firmware/Makefile
59525@@ -35,6 +35,7 @@ fw-shipped-$(CONFIG_BNX2X) += bnx2x/bnx2x-e1-6.2.9.0.fw \
59526 bnx2x/bnx2x-e1h-6.2.9.0.fw \
59527 bnx2x/bnx2x-e2-6.2.9.0.fw
59528 fw-shipped-$(CONFIG_BNX2) += bnx2/bnx2-mips-09-6.2.1a.fw \
59529+ bnx2/bnx2-mips-09-6.2.1b.fw \
59530 bnx2/bnx2-rv2p-09-6.0.17.fw \
59531 bnx2/bnx2-rv2p-09ax-6.0.17.fw \
59532 bnx2/bnx2-mips-06-6.2.1.fw \
59533diff --git a/firmware/WHENCE b/firmware/WHENCE
59534index 0c4d96d..7563083 100644
59535--- a/firmware/WHENCE
59536+++ b/firmware/WHENCE
59537@@ -655,19 +655,20 @@ Driver: BNX2 - Broadcom NetXtremeII
59538 File: bnx2/bnx2-mips-06-6.2.1.fw
59539 File: bnx2/bnx2-rv2p-06-6.0.15.fw
59540 File: bnx2/bnx2-mips-09-6.2.1a.fw
59541+File: bnx2/bnx2-mips-09-6.2.1b.fw
59542 File: bnx2/bnx2-rv2p-09-6.0.17.fw
59543 File: bnx2/bnx2-rv2p-09ax-6.0.17.fw
59544
59545 Licence:
59546-
59547- This file contains firmware data derived from proprietary unpublished
59548- source code, Copyright (c) 2004 - 2010 Broadcom Corporation.
59549-
59550- Permission is hereby granted for the distribution of this firmware data
59551- in hexadecimal or equivalent format, provided this copyright notice is
59552- accompanying it.
59553-
59554-Found in hex form in kernel source.
59555+
59556+ This file contains firmware data derived from proprietary unpublished
59557+ source code, Copyright (c) 2004 - 2010 Broadcom Corporation.
59558+
59559+ Permission is hereby granted for the distribution of this firmware data
59560+ in hexadecimal or equivalent format, provided this copyright notice is
59561+ accompanying it.
59562+
59563+Found in hex form in kernel source.
59564
59565 --------------------------------------------------------------------------
59566
59567diff --git a/firmware/bnx2/bnx2-mips-09-6.2.1b.fw.ihex b/firmware/bnx2/bnx2-mips-09-6.2.1b.fw.ihex
59568new file mode 100644
59569index 0000000..43d7c4f
59570--- /dev/null
59571+++ b/firmware/bnx2/bnx2-mips-09-6.2.1b.fw.ihex
59572@@ -0,0 +1,6496 @@
59573+:10000000080001180800000000005594000000C816
59574+:1000100000000000000000000000000008005594EF
59575+:10002000000000380000565C080000A00800000036
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59582+:1000900000000000080016FC00000004000158AC3D
59583+:1000A000080000A80800000000003D00000158B052
59584+:1000B00000000000000000000000000008003D00FB
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59586+:1000D000000000000000000D636F6D362E322E31DF
59587+:1000E00062000000060201020000000000000003A0
59588+:1000F000000000C800000032000000030000000003
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66000+:1091A000010B502B5540FFC5240700010A000E0497
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66002+:1091C00034480A0000805021AFBF002034460AC056
66003+:1091D000010028211060000E3444098091070030FE
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66009+:109230008D0800443443FFFFAFA900103C0B8008A9
66010+:109240008D69006C03E370240319782101CF682332
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66012+:109260000A000E58A380001C3C05800034A60A00AA
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66014+:109280008C423FD430E30020000624001060001E12
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66018+:1092C000ADE800083C0208008C423FDCA5E5000444
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66026+:109340001040001934870E00000040210000382131
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66030+:109380003C081000A5440004A5470006AD4E000CA3
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66049+:1094B00031E43FFF8E0E0000240DFF803C042000AD
66050+:1094C00001C25821016D6024000C4940316A007FBF
66051+:1094D000012A4025010438253C048008AE270830C5
66052+:1094E0003486008090C500682403000230A200FF8B
66053+:1094F000104300048F9F00208F990024AC9F0068C8
66054+:10950000AC9900648FBF00188FB100148FB00010A9
66055+:1095100003E0000827BD00203C0A0800254A3A80E5
66056+:109520003C09080025293B103C08080025082F1C91
66057+:109530003C07080024E73BDC3C06080024C639044D
66058+:109540003C05080024A536583C0408002484325CFD
66059+:109550003C030800246339B83C0208002442375415
66060+:109560003C010800AC2A3F983C010800AC293F941C
66061+:109570003C010800AC283F903C010800AC273F9C10
66062+:109580003C010800AC263FAC3C010800AC253FA4E0
66063+:109590003C010800AC243FA03C010800AC233FB0D4
66064+:1095A0003C010800AC223FA803E0000800000000D6
66065+:1095B00080000940800009008008010080080080C8
66066+:1095C00080080000800E00008008008080080000F5
66067+:1095D00080000A8080000A00800009808000090065
66068+:00000001FF
66069diff --git a/fs/9p/vfs_addr.c b/fs/9p/vfs_addr.c
66070index eb14e05..5156de7 100644
66071--- a/fs/9p/vfs_addr.c
66072+++ b/fs/9p/vfs_addr.c
66073@@ -187,7 +187,7 @@ static int v9fs_vfs_writepage_locked(struct page *page)
66074
66075 retval = v9fs_file_write_internal(inode,
66076 v9inode->writeback_fid,
66077- (__force const char __user *)buffer,
66078+ (const char __force_user *)buffer,
66079 len, &offset, 0);
66080 if (retval > 0)
66081 retval = 0;
66082diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c
66083index 3662f1d..90558b5 100644
66084--- a/fs/9p/vfs_inode.c
66085+++ b/fs/9p/vfs_inode.c
66086@@ -1312,7 +1312,7 @@ static void *v9fs_vfs_follow_link(struct dentry *dentry, struct nameidata *nd)
66087 void
66088 v9fs_vfs_put_link(struct dentry *dentry, struct nameidata *nd, void *p)
66089 {
66090- char *s = nd_get_link(nd);
66091+ const char *s = nd_get_link(nd);
66092
66093 p9_debug(P9_DEBUG_VFS, " %pd %s\n",
66094 dentry, IS_ERR(s) ? "<error>" : s);
66095diff --git a/fs/Kconfig.binfmt b/fs/Kconfig.binfmt
66096index 270c481..0d8a962 100644
66097--- a/fs/Kconfig.binfmt
66098+++ b/fs/Kconfig.binfmt
66099@@ -106,7 +106,7 @@ config HAVE_AOUT
66100
66101 config BINFMT_AOUT
66102 tristate "Kernel support for a.out and ECOFF binaries"
66103- depends on HAVE_AOUT
66104+ depends on HAVE_AOUT && BROKEN
66105 ---help---
66106 A.out (Assembler.OUTput) is a set of formats for libraries and
66107 executables used in the earliest versions of UNIX. Linux used
66108diff --git a/fs/afs/inode.c b/fs/afs/inode.c
66109index 8a1d38e..300a14e 100644
66110--- a/fs/afs/inode.c
66111+++ b/fs/afs/inode.c
66112@@ -141,7 +141,7 @@ struct inode *afs_iget_autocell(struct inode *dir, const char *dev_name,
66113 struct afs_vnode *vnode;
66114 struct super_block *sb;
66115 struct inode *inode;
66116- static atomic_t afs_autocell_ino;
66117+ static atomic_unchecked_t afs_autocell_ino;
66118
66119 _enter("{%x:%u},%*.*s,",
66120 AFS_FS_I(dir)->fid.vid, AFS_FS_I(dir)->fid.vnode,
66121@@ -154,7 +154,7 @@ struct inode *afs_iget_autocell(struct inode *dir, const char *dev_name,
66122 data.fid.unique = 0;
66123 data.fid.vnode = 0;
66124
66125- inode = iget5_locked(sb, atomic_inc_return(&afs_autocell_ino),
66126+ inode = iget5_locked(sb, atomic_inc_return_unchecked(&afs_autocell_ino),
66127 afs_iget5_autocell_test, afs_iget5_set,
66128 &data);
66129 if (!inode) {
66130diff --git a/fs/aio.c b/fs/aio.c
66131index a1736e9..c80a8ac 100644
66132--- a/fs/aio.c
66133+++ b/fs/aio.c
66134@@ -409,7 +409,7 @@ static int aio_setup_ring(struct kioctx *ctx)
66135 size += sizeof(struct io_event) * nr_events;
66136
66137 nr_pages = PFN_UP(size);
66138- if (nr_pages < 0)
66139+ if (nr_pages <= 0)
66140 return -EINVAL;
66141
66142 file = aio_private_file(ctx, nr_pages);
66143diff --git a/fs/attr.c b/fs/attr.c
66144index 6530ced..4a827e2 100644
66145--- a/fs/attr.c
66146+++ b/fs/attr.c
66147@@ -102,6 +102,7 @@ int inode_newsize_ok(const struct inode *inode, loff_t offset)
66148 unsigned long limit;
66149
66150 limit = rlimit(RLIMIT_FSIZE);
66151+ gr_learn_resource(current, RLIMIT_FSIZE, (unsigned long)offset, 1);
66152 if (limit != RLIM_INFINITY && offset > limit)
66153 goto out_sig;
66154 if (offset > inode->i_sb->s_maxbytes)
66155diff --git a/fs/autofs4/waitq.c b/fs/autofs4/waitq.c
66156index 116fd38..c04182da 100644
66157--- a/fs/autofs4/waitq.c
66158+++ b/fs/autofs4/waitq.c
66159@@ -59,7 +59,7 @@ static int autofs4_write(struct autofs_sb_info *sbi,
66160 {
66161 unsigned long sigpipe, flags;
66162 mm_segment_t fs;
66163- const char *data = (const char *)addr;
66164+ const char __user *data = (const char __force_user *)addr;
66165 ssize_t wr = 0;
66166
66167 sigpipe = sigismember(&current->pending.signal, SIGPIPE);
66168@@ -340,6 +340,10 @@ static int validate_request(struct autofs_wait_queue **wait,
66169 return 1;
66170 }
66171
66172+#ifdef CONFIG_GRKERNSEC_HIDESYM
66173+static atomic_unchecked_t autofs_dummy_name_id = ATOMIC_INIT(0);
66174+#endif
66175+
66176 int autofs4_wait(struct autofs_sb_info *sbi, struct dentry *dentry,
66177 enum autofs_notify notify)
66178 {
66179@@ -385,7 +389,12 @@ int autofs4_wait(struct autofs_sb_info *sbi, struct dentry *dentry,
66180
66181 /* If this is a direct mount request create a dummy name */
66182 if (IS_ROOT(dentry) && autofs_type_trigger(sbi->type))
66183+#ifdef CONFIG_GRKERNSEC_HIDESYM
66184+ /* this name does get written to userland via autofs4_write() */
66185+ qstr.len = sprintf(name, "%08x", atomic_inc_return_unchecked(&autofs_dummy_name_id));
66186+#else
66187 qstr.len = sprintf(name, "%p", dentry);
66188+#endif
66189 else {
66190 qstr.len = autofs4_getpath(sbi, dentry, &name);
66191 if (!qstr.len) {
66192diff --git a/fs/befs/endian.h b/fs/befs/endian.h
66193index 2722387..56059b5 100644
66194--- a/fs/befs/endian.h
66195+++ b/fs/befs/endian.h
66196@@ -11,7 +11,7 @@
66197
66198 #include <asm/byteorder.h>
66199
66200-static inline u64
66201+static inline u64 __intentional_overflow(-1)
66202 fs64_to_cpu(const struct super_block *sb, fs64 n)
66203 {
66204 if (BEFS_SB(sb)->byte_order == BEFS_BYTESEX_LE)
66205@@ -29,7 +29,7 @@ cpu_to_fs64(const struct super_block *sb, u64 n)
66206 return (__force fs64)cpu_to_be64(n);
66207 }
66208
66209-static inline u32
66210+static inline u32 __intentional_overflow(-1)
66211 fs32_to_cpu(const struct super_block *sb, fs32 n)
66212 {
66213 if (BEFS_SB(sb)->byte_order == BEFS_BYTESEX_LE)
66214@@ -47,7 +47,7 @@ cpu_to_fs32(const struct super_block *sb, u32 n)
66215 return (__force fs32)cpu_to_be32(n);
66216 }
66217
66218-static inline u16
66219+static inline u16 __intentional_overflow(-1)
66220 fs16_to_cpu(const struct super_block *sb, fs16 n)
66221 {
66222 if (BEFS_SB(sb)->byte_order == BEFS_BYTESEX_LE)
66223diff --git a/fs/binfmt_aout.c b/fs/binfmt_aout.c
66224index 4c55668..eeae150 100644
66225--- a/fs/binfmt_aout.c
66226+++ b/fs/binfmt_aout.c
66227@@ -16,6 +16,7 @@
66228 #include <linux/string.h>
66229 #include <linux/fs.h>
66230 #include <linux/file.h>
66231+#include <linux/security.h>
66232 #include <linux/stat.h>
66233 #include <linux/fcntl.h>
66234 #include <linux/ptrace.h>
66235@@ -58,6 +59,8 @@ static int aout_core_dump(struct coredump_params *cprm)
66236 #endif
66237 # define START_STACK(u) ((void __user *)u.start_stack)
66238
66239+ memset(&dump, 0, sizeof(dump));
66240+
66241 fs = get_fs();
66242 set_fs(KERNEL_DS);
66243 has_dumped = 1;
66244@@ -68,10 +71,12 @@ static int aout_core_dump(struct coredump_params *cprm)
66245
66246 /* If the size of the dump file exceeds the rlimit, then see what would happen
66247 if we wrote the stack, but not the data area. */
66248+ gr_learn_resource(current, RLIMIT_CORE, (dump.u_dsize + dump.u_ssize+1) * PAGE_SIZE, 1);
66249 if ((dump.u_dsize + dump.u_ssize+1) * PAGE_SIZE > cprm->limit)
66250 dump.u_dsize = 0;
66251
66252 /* Make sure we have enough room to write the stack and data areas. */
66253+ gr_learn_resource(current, RLIMIT_CORE, (dump.u_ssize + 1) * PAGE_SIZE, 1);
66254 if ((dump.u_ssize + 1) * PAGE_SIZE > cprm->limit)
66255 dump.u_ssize = 0;
66256
66257@@ -232,6 +237,8 @@ static int load_aout_binary(struct linux_binprm * bprm)
66258 rlim = rlimit(RLIMIT_DATA);
66259 if (rlim >= RLIM_INFINITY)
66260 rlim = ~0;
66261+
66262+ gr_learn_resource(current, RLIMIT_DATA, ex.a_data + ex.a_bss, 1);
66263 if (ex.a_data + ex.a_bss > rlim)
66264 return -ENOMEM;
66265
66266@@ -261,6 +268,27 @@ static int load_aout_binary(struct linux_binprm * bprm)
66267
66268 install_exec_creds(bprm);
66269
66270+#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)
66271+ current->mm->pax_flags = 0UL;
66272+#endif
66273+
66274+#ifdef CONFIG_PAX_PAGEEXEC
66275+ if (!(N_FLAGS(ex) & F_PAX_PAGEEXEC)) {
66276+ current->mm->pax_flags |= MF_PAX_PAGEEXEC;
66277+
66278+#ifdef CONFIG_PAX_EMUTRAMP
66279+ if (N_FLAGS(ex) & F_PAX_EMUTRAMP)
66280+ current->mm->pax_flags |= MF_PAX_EMUTRAMP;
66281+#endif
66282+
66283+#ifdef CONFIG_PAX_MPROTECT
66284+ if (!(N_FLAGS(ex) & F_PAX_MPROTECT))
66285+ current->mm->pax_flags |= MF_PAX_MPROTECT;
66286+#endif
66287+
66288+ }
66289+#endif
66290+
66291 if (N_MAGIC(ex) == OMAGIC) {
66292 unsigned long text_addr, map_size;
66293 loff_t pos;
66294@@ -312,7 +340,7 @@ static int load_aout_binary(struct linux_binprm * bprm)
66295 return error;
66296
66297 error = vm_mmap(bprm->file, N_DATADDR(ex), ex.a_data,
66298- PROT_READ | PROT_WRITE | PROT_EXEC,
66299+ PROT_READ | PROT_WRITE,
66300 MAP_FIXED | MAP_PRIVATE | MAP_DENYWRITE | MAP_EXECUTABLE,
66301 fd_offset + ex.a_text);
66302 if (error != N_DATADDR(ex))
66303diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
66304index 8081aba..90a7bdd 100644
66305--- a/fs/binfmt_elf.c
66306+++ b/fs/binfmt_elf.c
66307@@ -34,6 +34,7 @@
66308 #include <linux/utsname.h>
66309 #include <linux/coredump.h>
66310 #include <linux/sched.h>
66311+#include <linux/xattr.h>
66312 #include <asm/uaccess.h>
66313 #include <asm/param.h>
66314 #include <asm/page.h>
66315@@ -47,7 +48,7 @@
66316
66317 static int load_elf_binary(struct linux_binprm *bprm);
66318 static unsigned long elf_map(struct file *, unsigned long, struct elf_phdr *,
66319- int, int, unsigned long);
66320+ int, int, unsigned long) __intentional_overflow(-1);
66321
66322 #ifdef CONFIG_USELIB
66323 static int load_elf_library(struct file *);
66324@@ -65,6 +66,14 @@ static int elf_core_dump(struct coredump_params *cprm);
66325 #define elf_core_dump NULL
66326 #endif
66327
66328+#ifdef CONFIG_PAX_MPROTECT
66329+static void elf_handle_mprotect(struct vm_area_struct *vma, unsigned long newflags);
66330+#endif
66331+
66332+#ifdef CONFIG_GRKERNSEC_RWXMAP_LOG
66333+static void elf_handle_mmap(struct file *file);
66334+#endif
66335+
66336 #if ELF_EXEC_PAGESIZE > PAGE_SIZE
66337 #define ELF_MIN_ALIGN ELF_EXEC_PAGESIZE
66338 #else
66339@@ -84,6 +93,15 @@ static struct linux_binfmt elf_format = {
66340 .load_binary = load_elf_binary,
66341 .load_shlib = load_elf_library,
66342 .core_dump = elf_core_dump,
66343+
66344+#ifdef CONFIG_PAX_MPROTECT
66345+ .handle_mprotect= elf_handle_mprotect,
66346+#endif
66347+
66348+#ifdef CONFIG_GRKERNSEC_RWXMAP_LOG
66349+ .handle_mmap = elf_handle_mmap,
66350+#endif
66351+
66352 .min_coredump = ELF_EXEC_PAGESIZE,
66353 };
66354
66355@@ -91,6 +109,8 @@ static struct linux_binfmt elf_format = {
66356
66357 static int set_brk(unsigned long start, unsigned long end)
66358 {
66359+ unsigned long e = end;
66360+
66361 start = ELF_PAGEALIGN(start);
66362 end = ELF_PAGEALIGN(end);
66363 if (end > start) {
66364@@ -99,7 +119,7 @@ static int set_brk(unsigned long start, unsigned long end)
66365 if (BAD_ADDR(addr))
66366 return addr;
66367 }
66368- current->mm->start_brk = current->mm->brk = end;
66369+ current->mm->start_brk = current->mm->brk = e;
66370 return 0;
66371 }
66372
66373@@ -160,12 +180,13 @@ create_elf_tables(struct linux_binprm *bprm, struct elfhdr *exec,
66374 elf_addr_t __user *u_rand_bytes;
66375 const char *k_platform = ELF_PLATFORM;
66376 const char *k_base_platform = ELF_BASE_PLATFORM;
66377- unsigned char k_rand_bytes[16];
66378+ u32 k_rand_bytes[4];
66379 int items;
66380 elf_addr_t *elf_info;
66381 int ei_index = 0;
66382 const struct cred *cred = current_cred();
66383 struct vm_area_struct *vma;
66384+ unsigned long saved_auxv[AT_VECTOR_SIZE];
66385
66386 /*
66387 * In some cases (e.g. Hyper-Threading), we want to avoid L1
66388@@ -207,8 +228,12 @@ create_elf_tables(struct linux_binprm *bprm, struct elfhdr *exec,
66389 * Generate 16 random bytes for userspace PRNG seeding.
66390 */
66391 get_random_bytes(k_rand_bytes, sizeof(k_rand_bytes));
66392- u_rand_bytes = (elf_addr_t __user *)
66393- STACK_ALLOC(p, sizeof(k_rand_bytes));
66394+ prandom_seed(k_rand_bytes[0] ^ prandom_u32());
66395+ prandom_seed(k_rand_bytes[1] ^ prandom_u32());
66396+ prandom_seed(k_rand_bytes[2] ^ prandom_u32());
66397+ prandom_seed(k_rand_bytes[3] ^ prandom_u32());
66398+ p = STACK_ROUND(p, sizeof(k_rand_bytes));
66399+ u_rand_bytes = (elf_addr_t __user *) p;
66400 if (__copy_to_user(u_rand_bytes, k_rand_bytes, sizeof(k_rand_bytes)))
66401 return -EFAULT;
66402
66403@@ -323,9 +348,11 @@ create_elf_tables(struct linux_binprm *bprm, struct elfhdr *exec,
66404 return -EFAULT;
66405 current->mm->env_end = p;
66406
66407+ memcpy(saved_auxv, elf_info, ei_index * sizeof(elf_addr_t));
66408+
66409 /* Put the elf_info on the stack in the right place. */
66410 sp = (elf_addr_t __user *)envp + 1;
66411- if (copy_to_user(sp, elf_info, ei_index * sizeof(elf_addr_t)))
66412+ if (copy_to_user(sp, saved_auxv, ei_index * sizeof(elf_addr_t)))
66413 return -EFAULT;
66414 return 0;
66415 }
66416@@ -514,14 +541,14 @@ static inline int arch_check_elf(struct elfhdr *ehdr, bool has_interp,
66417 an ELF header */
66418
66419 static unsigned long load_elf_interp(struct elfhdr *interp_elf_ex,
66420- struct file *interpreter, unsigned long *interp_map_addr,
66421+ struct file *interpreter,
66422 unsigned long no_base, struct elf_phdr *interp_elf_phdata)
66423 {
66424 struct elf_phdr *eppnt;
66425- unsigned long load_addr = 0;
66426+ unsigned long load_addr = 0, pax_task_size = TASK_SIZE;
66427 int load_addr_set = 0;
66428 unsigned long last_bss = 0, elf_bss = 0;
66429- unsigned long error = ~0UL;
66430+ unsigned long error = -EINVAL;
66431 unsigned long total_size;
66432 int i;
66433
66434@@ -541,6 +568,11 @@ static unsigned long load_elf_interp(struct elfhdr *interp_elf_ex,
66435 goto out;
66436 }
66437
66438+#ifdef CONFIG_PAX_SEGMEXEC
66439+ if (current->mm->pax_flags & MF_PAX_SEGMEXEC)
66440+ pax_task_size = SEGMEXEC_TASK_SIZE;
66441+#endif
66442+
66443 eppnt = interp_elf_phdata;
66444 for (i = 0; i < interp_elf_ex->e_phnum; i++, eppnt++) {
66445 if (eppnt->p_type == PT_LOAD) {
66446@@ -564,8 +596,6 @@ static unsigned long load_elf_interp(struct elfhdr *interp_elf_ex,
66447 map_addr = elf_map(interpreter, load_addr + vaddr,
66448 eppnt, elf_prot, elf_type, total_size);
66449 total_size = 0;
66450- if (!*interp_map_addr)
66451- *interp_map_addr = map_addr;
66452 error = map_addr;
66453 if (BAD_ADDR(map_addr))
66454 goto out;
66455@@ -584,8 +614,8 @@ static unsigned long load_elf_interp(struct elfhdr *interp_elf_ex,
66456 k = load_addr + eppnt->p_vaddr;
66457 if (BAD_ADDR(k) ||
66458 eppnt->p_filesz > eppnt->p_memsz ||
66459- eppnt->p_memsz > TASK_SIZE ||
66460- TASK_SIZE - eppnt->p_memsz < k) {
66461+ eppnt->p_memsz > pax_task_size ||
66462+ pax_task_size - eppnt->p_memsz < k) {
66463 error = -ENOMEM;
66464 goto out;
66465 }
66466@@ -624,9 +654,11 @@ static unsigned long load_elf_interp(struct elfhdr *interp_elf_ex,
66467 elf_bss = ELF_PAGESTART(elf_bss + ELF_MIN_ALIGN - 1);
66468
66469 /* Map the last of the bss segment */
66470- error = vm_brk(elf_bss, last_bss - elf_bss);
66471- if (BAD_ADDR(error))
66472- goto out;
66473+ if (last_bss > elf_bss) {
66474+ error = vm_brk(elf_bss, last_bss - elf_bss);
66475+ if (BAD_ADDR(error))
66476+ goto out;
66477+ }
66478 }
66479
66480 error = load_addr;
66481@@ -634,6 +666,336 @@ out:
66482 return error;
66483 }
66484
66485+#ifdef CONFIG_PAX_PT_PAX_FLAGS
66486+#ifdef CONFIG_PAX_SOFTMODE
66487+static unsigned long pax_parse_pt_pax_softmode(const struct elf_phdr * const elf_phdata)
66488+{
66489+ unsigned long pax_flags = 0UL;
66490+
66491+#ifdef CONFIG_PAX_PAGEEXEC
66492+ if (elf_phdata->p_flags & PF_PAGEEXEC)
66493+ pax_flags |= MF_PAX_PAGEEXEC;
66494+#endif
66495+
66496+#ifdef CONFIG_PAX_SEGMEXEC
66497+ if (elf_phdata->p_flags & PF_SEGMEXEC)
66498+ pax_flags |= MF_PAX_SEGMEXEC;
66499+#endif
66500+
66501+#ifdef CONFIG_PAX_EMUTRAMP
66502+ if ((elf_phdata->p_flags & PF_EMUTRAMP) && (pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)))
66503+ pax_flags |= MF_PAX_EMUTRAMP;
66504+#endif
66505+
66506+#ifdef CONFIG_PAX_MPROTECT
66507+ if (elf_phdata->p_flags & PF_MPROTECT)
66508+ pax_flags |= MF_PAX_MPROTECT;
66509+#endif
66510+
66511+#if defined(CONFIG_PAX_RANDMMAP) || defined(CONFIG_PAX_RANDUSTACK)
66512+ if (randomize_va_space && (elf_phdata->p_flags & PF_RANDMMAP))
66513+ pax_flags |= MF_PAX_RANDMMAP;
66514+#endif
66515+
66516+ return pax_flags;
66517+}
66518+#endif
66519+
66520+static unsigned long pax_parse_pt_pax_hardmode(const struct elf_phdr * const elf_phdata)
66521+{
66522+ unsigned long pax_flags = 0UL;
66523+
66524+#ifdef CONFIG_PAX_PAGEEXEC
66525+ if (!(elf_phdata->p_flags & PF_NOPAGEEXEC))
66526+ pax_flags |= MF_PAX_PAGEEXEC;
66527+#endif
66528+
66529+#ifdef CONFIG_PAX_SEGMEXEC
66530+ if (!(elf_phdata->p_flags & PF_NOSEGMEXEC))
66531+ pax_flags |= MF_PAX_SEGMEXEC;
66532+#endif
66533+
66534+#ifdef CONFIG_PAX_EMUTRAMP
66535+ if (!(elf_phdata->p_flags & PF_NOEMUTRAMP))
66536+ pax_flags |= MF_PAX_EMUTRAMP;
66537+#endif
66538+
66539+#ifdef CONFIG_PAX_MPROTECT
66540+ if (!(elf_phdata->p_flags & PF_NOMPROTECT))
66541+ pax_flags |= MF_PAX_MPROTECT;
66542+#endif
66543+
66544+#if defined(CONFIG_PAX_RANDMMAP) || defined(CONFIG_PAX_RANDUSTACK)
66545+ if (randomize_va_space && !(elf_phdata->p_flags & PF_NORANDMMAP))
66546+ pax_flags |= MF_PAX_RANDMMAP;
66547+#endif
66548+
66549+ return pax_flags;
66550+}
66551+#endif
66552+
66553+#ifdef CONFIG_PAX_XATTR_PAX_FLAGS
66554+#ifdef CONFIG_PAX_SOFTMODE
66555+static unsigned long pax_parse_xattr_pax_softmode(unsigned long pax_flags_softmode)
66556+{
66557+ unsigned long pax_flags = 0UL;
66558+
66559+#ifdef CONFIG_PAX_PAGEEXEC
66560+ if (pax_flags_softmode & MF_PAX_PAGEEXEC)
66561+ pax_flags |= MF_PAX_PAGEEXEC;
66562+#endif
66563+
66564+#ifdef CONFIG_PAX_SEGMEXEC
66565+ if (pax_flags_softmode & MF_PAX_SEGMEXEC)
66566+ pax_flags |= MF_PAX_SEGMEXEC;
66567+#endif
66568+
66569+#ifdef CONFIG_PAX_EMUTRAMP
66570+ if ((pax_flags_softmode & MF_PAX_EMUTRAMP) && (pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)))
66571+ pax_flags |= MF_PAX_EMUTRAMP;
66572+#endif
66573+
66574+#ifdef CONFIG_PAX_MPROTECT
66575+ if (pax_flags_softmode & MF_PAX_MPROTECT)
66576+ pax_flags |= MF_PAX_MPROTECT;
66577+#endif
66578+
66579+#if defined(CONFIG_PAX_RANDMMAP) || defined(CONFIG_PAX_RANDUSTACK)
66580+ if (randomize_va_space && (pax_flags_softmode & MF_PAX_RANDMMAP))
66581+ pax_flags |= MF_PAX_RANDMMAP;
66582+#endif
66583+
66584+ return pax_flags;
66585+}
66586+#endif
66587+
66588+static unsigned long pax_parse_xattr_pax_hardmode(unsigned long pax_flags_hardmode)
66589+{
66590+ unsigned long pax_flags = 0UL;
66591+
66592+#ifdef CONFIG_PAX_PAGEEXEC
66593+ if (!(pax_flags_hardmode & MF_PAX_PAGEEXEC))
66594+ pax_flags |= MF_PAX_PAGEEXEC;
66595+#endif
66596+
66597+#ifdef CONFIG_PAX_SEGMEXEC
66598+ if (!(pax_flags_hardmode & MF_PAX_SEGMEXEC))
66599+ pax_flags |= MF_PAX_SEGMEXEC;
66600+#endif
66601+
66602+#ifdef CONFIG_PAX_EMUTRAMP
66603+ if (!(pax_flags_hardmode & MF_PAX_EMUTRAMP))
66604+ pax_flags |= MF_PAX_EMUTRAMP;
66605+#endif
66606+
66607+#ifdef CONFIG_PAX_MPROTECT
66608+ if (!(pax_flags_hardmode & MF_PAX_MPROTECT))
66609+ pax_flags |= MF_PAX_MPROTECT;
66610+#endif
66611+
66612+#if defined(CONFIG_PAX_RANDMMAP) || defined(CONFIG_PAX_RANDUSTACK)
66613+ if (randomize_va_space && !(pax_flags_hardmode & MF_PAX_RANDMMAP))
66614+ pax_flags |= MF_PAX_RANDMMAP;
66615+#endif
66616+
66617+ return pax_flags;
66618+}
66619+#endif
66620+
66621+#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)
66622+static unsigned long pax_parse_defaults(void)
66623+{
66624+ unsigned long pax_flags = 0UL;
66625+
66626+#ifdef CONFIG_PAX_SOFTMODE
66627+ if (pax_softmode)
66628+ return pax_flags;
66629+#endif
66630+
66631+#ifdef CONFIG_PAX_PAGEEXEC
66632+ pax_flags |= MF_PAX_PAGEEXEC;
66633+#endif
66634+
66635+#ifdef CONFIG_PAX_SEGMEXEC
66636+ pax_flags |= MF_PAX_SEGMEXEC;
66637+#endif
66638+
66639+#ifdef CONFIG_PAX_MPROTECT
66640+ pax_flags |= MF_PAX_MPROTECT;
66641+#endif
66642+
66643+#ifdef CONFIG_PAX_RANDMMAP
66644+ if (randomize_va_space)
66645+ pax_flags |= MF_PAX_RANDMMAP;
66646+#endif
66647+
66648+ return pax_flags;
66649+}
66650+
66651+static unsigned long pax_parse_ei_pax(const struct elfhdr * const elf_ex)
66652+{
66653+ unsigned long pax_flags = PAX_PARSE_FLAGS_FALLBACK;
66654+
66655+#ifdef CONFIG_PAX_EI_PAX
66656+
66657+#ifdef CONFIG_PAX_SOFTMODE
66658+ if (pax_softmode)
66659+ return pax_flags;
66660+#endif
66661+
66662+ pax_flags = 0UL;
66663+
66664+#ifdef CONFIG_PAX_PAGEEXEC
66665+ if (!(elf_ex->e_ident[EI_PAX] & EF_PAX_PAGEEXEC))
66666+ pax_flags |= MF_PAX_PAGEEXEC;
66667+#endif
66668+
66669+#ifdef CONFIG_PAX_SEGMEXEC
66670+ if (!(elf_ex->e_ident[EI_PAX] & EF_PAX_SEGMEXEC))
66671+ pax_flags |= MF_PAX_SEGMEXEC;
66672+#endif
66673+
66674+#ifdef CONFIG_PAX_EMUTRAMP
66675+ if ((pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) && (elf_ex->e_ident[EI_PAX] & EF_PAX_EMUTRAMP))
66676+ pax_flags |= MF_PAX_EMUTRAMP;
66677+#endif
66678+
66679+#ifdef CONFIG_PAX_MPROTECT
66680+ if ((pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) && !(elf_ex->e_ident[EI_PAX] & EF_PAX_MPROTECT))
66681+ pax_flags |= MF_PAX_MPROTECT;
66682+#endif
66683+
66684+#ifdef CONFIG_PAX_ASLR
66685+ if (randomize_va_space && !(elf_ex->e_ident[EI_PAX] & EF_PAX_RANDMMAP))
66686+ pax_flags |= MF_PAX_RANDMMAP;
66687+#endif
66688+
66689+#endif
66690+
66691+ return pax_flags;
66692+
66693+}
66694+
66695+static unsigned long pax_parse_pt_pax(const struct elfhdr * const elf_ex, const struct elf_phdr * const elf_phdata)
66696+{
66697+
66698+#ifdef CONFIG_PAX_PT_PAX_FLAGS
66699+ unsigned long i;
66700+
66701+ for (i = 0UL; i < elf_ex->e_phnum; i++)
66702+ if (elf_phdata[i].p_type == PT_PAX_FLAGS) {
66703+ if (((elf_phdata[i].p_flags & PF_PAGEEXEC) && (elf_phdata[i].p_flags & PF_NOPAGEEXEC)) ||
66704+ ((elf_phdata[i].p_flags & PF_SEGMEXEC) && (elf_phdata[i].p_flags & PF_NOSEGMEXEC)) ||
66705+ ((elf_phdata[i].p_flags & PF_EMUTRAMP) && (elf_phdata[i].p_flags & PF_NOEMUTRAMP)) ||
66706+ ((elf_phdata[i].p_flags & PF_MPROTECT) && (elf_phdata[i].p_flags & PF_NOMPROTECT)) ||
66707+ ((elf_phdata[i].p_flags & PF_RANDMMAP) && (elf_phdata[i].p_flags & PF_NORANDMMAP)))
66708+ return PAX_PARSE_FLAGS_FALLBACK;
66709+
66710+#ifdef CONFIG_PAX_SOFTMODE
66711+ if (pax_softmode)
66712+ return pax_parse_pt_pax_softmode(&elf_phdata[i]);
66713+ else
66714+#endif
66715+
66716+ return pax_parse_pt_pax_hardmode(&elf_phdata[i]);
66717+ break;
66718+ }
66719+#endif
66720+
66721+ return PAX_PARSE_FLAGS_FALLBACK;
66722+}
66723+
66724+static unsigned long pax_parse_xattr_pax(struct file * const file)
66725+{
66726+
66727+#ifdef CONFIG_PAX_XATTR_PAX_FLAGS
66728+ ssize_t xattr_size, i;
66729+ unsigned char xattr_value[sizeof("pemrs") - 1];
66730+ unsigned long pax_flags_hardmode = 0UL, pax_flags_softmode = 0UL;
66731+
66732+ xattr_size = pax_getxattr(file->f_path.dentry, xattr_value, sizeof xattr_value);
66733+ if (xattr_size < 0 || xattr_size > sizeof xattr_value)
66734+ return PAX_PARSE_FLAGS_FALLBACK;
66735+
66736+ for (i = 0; i < xattr_size; i++)
66737+ switch (xattr_value[i]) {
66738+ default:
66739+ return PAX_PARSE_FLAGS_FALLBACK;
66740+
66741+#define parse_flag(option1, option2, flag) \
66742+ case option1: \
66743+ if (pax_flags_hardmode & MF_PAX_##flag) \
66744+ return PAX_PARSE_FLAGS_FALLBACK;\
66745+ pax_flags_hardmode |= MF_PAX_##flag; \
66746+ break; \
66747+ case option2: \
66748+ if (pax_flags_softmode & MF_PAX_##flag) \
66749+ return PAX_PARSE_FLAGS_FALLBACK;\
66750+ pax_flags_softmode |= MF_PAX_##flag; \
66751+ break;
66752+
66753+ parse_flag('p', 'P', PAGEEXEC);
66754+ parse_flag('e', 'E', EMUTRAMP);
66755+ parse_flag('m', 'M', MPROTECT);
66756+ parse_flag('r', 'R', RANDMMAP);
66757+ parse_flag('s', 'S', SEGMEXEC);
66758+
66759+#undef parse_flag
66760+ }
66761+
66762+ if (pax_flags_hardmode & pax_flags_softmode)
66763+ return PAX_PARSE_FLAGS_FALLBACK;
66764+
66765+#ifdef CONFIG_PAX_SOFTMODE
66766+ if (pax_softmode)
66767+ return pax_parse_xattr_pax_softmode(pax_flags_softmode);
66768+ else
66769+#endif
66770+
66771+ return pax_parse_xattr_pax_hardmode(pax_flags_hardmode);
66772+#else
66773+ return PAX_PARSE_FLAGS_FALLBACK;
66774+#endif
66775+
66776+}
66777+
66778+static long pax_parse_pax_flags(const struct elfhdr * const elf_ex, const struct elf_phdr * const elf_phdata, struct file * const file)
66779+{
66780+ unsigned long pax_flags, ei_pax_flags, pt_pax_flags, xattr_pax_flags;
66781+
66782+ pax_flags = pax_parse_defaults();
66783+ ei_pax_flags = pax_parse_ei_pax(elf_ex);
66784+ pt_pax_flags = pax_parse_pt_pax(elf_ex, elf_phdata);
66785+ xattr_pax_flags = pax_parse_xattr_pax(file);
66786+
66787+ if (pt_pax_flags != PAX_PARSE_FLAGS_FALLBACK &&
66788+ xattr_pax_flags != PAX_PARSE_FLAGS_FALLBACK &&
66789+ pt_pax_flags != xattr_pax_flags)
66790+ return -EINVAL;
66791+ if (xattr_pax_flags != PAX_PARSE_FLAGS_FALLBACK)
66792+ pax_flags = xattr_pax_flags;
66793+ else if (pt_pax_flags != PAX_PARSE_FLAGS_FALLBACK)
66794+ pax_flags = pt_pax_flags;
66795+ else if (ei_pax_flags != PAX_PARSE_FLAGS_FALLBACK)
66796+ pax_flags = ei_pax_flags;
66797+
66798+#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_PAX_SEGMEXEC)
66799+ if ((pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) == (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) {
66800+ if ((__supported_pte_mask & _PAGE_NX))
66801+ pax_flags &= ~MF_PAX_SEGMEXEC;
66802+ else
66803+ pax_flags &= ~MF_PAX_PAGEEXEC;
66804+ }
66805+#endif
66806+
66807+ if (0 > pax_check_flags(&pax_flags))
66808+ return -EINVAL;
66809+
66810+ current->mm->pax_flags = pax_flags;
66811+ return 0;
66812+}
66813+#endif
66814+
66815 /*
66816 * These are the functions used to load ELF style executables and shared
66817 * libraries. There is no binary dependent code anywhere else.
66818@@ -647,6 +1009,11 @@ static unsigned long randomize_stack_top(unsigned long stack_top)
66819 {
66820 unsigned long random_variable = 0;
66821
66822+#ifdef CONFIG_PAX_RANDUSTACK
66823+ if (current->mm->pax_flags & MF_PAX_RANDMMAP)
66824+ return stack_top - current->mm->delta_stack;
66825+#endif
66826+
66827 if ((current->flags & PF_RANDOMIZE) &&
66828 !(current->personality & ADDR_NO_RANDOMIZE)) {
66829 random_variable = (unsigned long) get_random_int();
66830@@ -666,7 +1033,7 @@ static int load_elf_binary(struct linux_binprm *bprm)
66831 unsigned long load_addr = 0, load_bias = 0;
66832 int load_addr_set = 0;
66833 char * elf_interpreter = NULL;
66834- unsigned long error;
66835+ unsigned long error = 0;
66836 struct elf_phdr *elf_ppnt, *elf_phdata, *interp_elf_phdata = NULL;
66837 unsigned long elf_bss, elf_brk;
66838 int retval, i;
66839@@ -681,6 +1048,7 @@ static int load_elf_binary(struct linux_binprm *bprm)
66840 struct elfhdr interp_elf_ex;
66841 } *loc;
66842 struct arch_elf_state arch_state = INIT_ARCH_ELF_STATE;
66843+ unsigned long pax_task_size;
66844
66845 loc = kmalloc(sizeof(*loc), GFP_KERNEL);
66846 if (!loc) {
66847@@ -839,6 +1207,77 @@ static int load_elf_binary(struct linux_binprm *bprm)
66848 /* Do this immediately, since STACK_TOP as used in setup_arg_pages
66849 may depend on the personality. */
66850 SET_PERSONALITY2(loc->elf_ex, &arch_state);
66851+
66852+#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)
66853+ current->mm->pax_flags = 0UL;
66854+#endif
66855+
66856+#ifdef CONFIG_PAX_DLRESOLVE
66857+ current->mm->call_dl_resolve = 0UL;
66858+#endif
66859+
66860+#if defined(CONFIG_PPC32) && defined(CONFIG_PAX_EMUSIGRT)
66861+ current->mm->call_syscall = 0UL;
66862+#endif
66863+
66864+#ifdef CONFIG_PAX_ASLR
66865+ current->mm->delta_mmap = 0UL;
66866+ current->mm->delta_stack = 0UL;
66867+#endif
66868+
66869+#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)
66870+ if (0 > pax_parse_pax_flags(&loc->elf_ex, elf_phdata, bprm->file)) {
66871+ send_sig(SIGKILL, current, 0);
66872+ goto out_free_dentry;
66873+ }
66874+#endif
66875+
66876+#ifdef CONFIG_PAX_HAVE_ACL_FLAGS
66877+ pax_set_initial_flags(bprm);
66878+#elif defined(CONFIG_PAX_HOOK_ACL_FLAGS)
66879+ if (pax_set_initial_flags_func)
66880+ (pax_set_initial_flags_func)(bprm);
66881+#endif
66882+
66883+#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT
66884+ if ((current->mm->pax_flags & MF_PAX_PAGEEXEC) && !(__supported_pte_mask & _PAGE_NX)) {
66885+ current->mm->context.user_cs_limit = PAGE_SIZE;
66886+ current->mm->def_flags |= VM_PAGEEXEC | VM_NOHUGEPAGE;
66887+ }
66888+#endif
66889+
66890+#ifdef CONFIG_PAX_SEGMEXEC
66891+ if (current->mm->pax_flags & MF_PAX_SEGMEXEC) {
66892+ current->mm->context.user_cs_base = SEGMEXEC_TASK_SIZE;
66893+ current->mm->context.user_cs_limit = TASK_SIZE-SEGMEXEC_TASK_SIZE;
66894+ pax_task_size = SEGMEXEC_TASK_SIZE;
66895+ current->mm->def_flags |= VM_NOHUGEPAGE;
66896+ } else
66897+#endif
66898+
66899+ pax_task_size = TASK_SIZE;
66900+
66901+#if defined(CONFIG_ARCH_TRACK_EXEC_LIMIT) || defined(CONFIG_PAX_SEGMEXEC)
66902+ if (current->mm->pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) {
66903+ set_user_cs(current->mm->context.user_cs_base, current->mm->context.user_cs_limit, get_cpu());
66904+ put_cpu();
66905+ }
66906+#endif
66907+
66908+#ifdef CONFIG_PAX_ASLR
66909+ if (current->mm->pax_flags & MF_PAX_RANDMMAP) {
66910+ current->mm->delta_mmap = (pax_get_random_long() & ((1UL << PAX_DELTA_MMAP_LEN)-1)) << PAGE_SHIFT;
66911+ current->mm->delta_stack = (pax_get_random_long() & ((1UL << PAX_DELTA_STACK_LEN)-1)) << PAGE_SHIFT;
66912+ }
66913+#endif
66914+
66915+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
66916+ if (current->mm->pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) {
66917+ executable_stack = EXSTACK_DISABLE_X;
66918+ current->personality &= ~READ_IMPLIES_EXEC;
66919+ } else
66920+#endif
66921+
66922 if (elf_read_implies_exec(loc->elf_ex, executable_stack))
66923 current->personality |= READ_IMPLIES_EXEC;
66924
66925@@ -925,8 +1364,21 @@ static int load_elf_binary(struct linux_binprm *bprm)
66926 #else
66927 load_bias = ELF_PAGESTART(ELF_ET_DYN_BASE - vaddr);
66928 #endif
66929- total_size = total_mapping_size(elf_phdata,
66930- loc->elf_ex.e_phnum);
66931+
66932+#ifdef CONFIG_PAX_RANDMMAP
66933+ /* PaX: randomize base address at the default exe base if requested */
66934+ if ((current->mm->pax_flags & MF_PAX_RANDMMAP) && elf_interpreter) {
66935+#ifdef CONFIG_SPARC64
66936+ load_bias = (pax_get_random_long() & ((1UL << PAX_DELTA_MMAP_LEN) - 1)) << (PAGE_SHIFT+1);
66937+#else
66938+ load_bias = (pax_get_random_long() & ((1UL << PAX_DELTA_MMAP_LEN) - 1)) << PAGE_SHIFT;
66939+#endif
66940+ load_bias = ELF_PAGESTART(PAX_ELF_ET_DYN_BASE - vaddr + load_bias);
66941+ elf_flags |= MAP_FIXED;
66942+ }
66943+#endif
66944+
66945+ total_size = total_mapping_size(elf_phdata, loc->elf_ex.e_phnum);
66946 if (!total_size) {
66947 retval = -EINVAL;
66948 goto out_free_dentry;
66949@@ -962,9 +1414,9 @@ static int load_elf_binary(struct linux_binprm *bprm)
66950 * allowed task size. Note that p_filesz must always be
66951 * <= p_memsz so it is only necessary to check p_memsz.
66952 */
66953- if (BAD_ADDR(k) || elf_ppnt->p_filesz > elf_ppnt->p_memsz ||
66954- elf_ppnt->p_memsz > TASK_SIZE ||
66955- TASK_SIZE - elf_ppnt->p_memsz < k) {
66956+ if (k >= pax_task_size || elf_ppnt->p_filesz > elf_ppnt->p_memsz ||
66957+ elf_ppnt->p_memsz > pax_task_size ||
66958+ pax_task_size - elf_ppnt->p_memsz < k) {
66959 /* set_brk can never work. Avoid overflows. */
66960 retval = -EINVAL;
66961 goto out_free_dentry;
66962@@ -1000,16 +1452,43 @@ static int load_elf_binary(struct linux_binprm *bprm)
66963 if (retval)
66964 goto out_free_dentry;
66965 if (likely(elf_bss != elf_brk) && unlikely(padzero(elf_bss))) {
66966- retval = -EFAULT; /* Nobody gets to see this, but.. */
66967- goto out_free_dentry;
66968+ /*
66969+ * This bss-zeroing can fail if the ELF
66970+ * file specifies odd protections. So
66971+ * we don't check the return value
66972+ */
66973 }
66974
66975+#ifdef CONFIG_PAX_RANDMMAP
66976+ if (current->mm->pax_flags & MF_PAX_RANDMMAP) {
66977+ unsigned long start, size, flags;
66978+ vm_flags_t vm_flags;
66979+
66980+ start = ELF_PAGEALIGN(elf_brk);
66981+ size = PAGE_SIZE + ((pax_get_random_long() & ((1UL << 22) - 1UL)) << 4);
66982+ flags = MAP_FIXED | MAP_PRIVATE;
66983+ vm_flags = VM_DONTEXPAND | VM_DONTDUMP;
66984+
66985+ down_write(&current->mm->mmap_sem);
66986+ start = get_unmapped_area(NULL, start, PAGE_ALIGN(size), 0, flags);
66987+ retval = -ENOMEM;
66988+ if (!IS_ERR_VALUE(start) && !find_vma_intersection(current->mm, start, start + size + PAGE_SIZE)) {
66989+// if (current->personality & ADDR_NO_RANDOMIZE)
66990+// vm_flags |= VM_READ | VM_MAYREAD;
66991+ start = mmap_region(NULL, start, PAGE_ALIGN(size), vm_flags, 0);
66992+ retval = IS_ERR_VALUE(start) ? start : 0;
66993+ }
66994+ up_write(&current->mm->mmap_sem);
66995+ if (retval == 0)
66996+ retval = set_brk(start + size, start + size + PAGE_SIZE);
66997+ if (retval < 0)
66998+ goto out_free_dentry;
66999+ }
67000+#endif
67001+
67002 if (elf_interpreter) {
67003- unsigned long interp_map_addr = 0;
67004-
67005 elf_entry = load_elf_interp(&loc->interp_elf_ex,
67006 interpreter,
67007- &interp_map_addr,
67008 load_bias, interp_elf_phdata);
67009 if (!IS_ERR((void *)elf_entry)) {
67010 /*
67011@@ -1237,7 +1716,7 @@ static bool always_dump_vma(struct vm_area_struct *vma)
67012 * Decide what to dump of a segment, part, all or none.
67013 */
67014 static unsigned long vma_dump_size(struct vm_area_struct *vma,
67015- unsigned long mm_flags)
67016+ unsigned long mm_flags, long signr)
67017 {
67018 #define FILTER(type) (mm_flags & (1UL << MMF_DUMP_##type))
67019
67020@@ -1275,7 +1754,7 @@ static unsigned long vma_dump_size(struct vm_area_struct *vma,
67021 if (vma->vm_file == NULL)
67022 return 0;
67023
67024- if (FILTER(MAPPED_PRIVATE))
67025+ if (signr == SIGKILL || FILTER(MAPPED_PRIVATE))
67026 goto whole;
67027
67028 /*
67029@@ -1482,9 +1961,9 @@ static void fill_auxv_note(struct memelfnote *note, struct mm_struct *mm)
67030 {
67031 elf_addr_t *auxv = (elf_addr_t *) mm->saved_auxv;
67032 int i = 0;
67033- do
67034+ do {
67035 i += 2;
67036- while (auxv[i - 2] != AT_NULL);
67037+ } while (auxv[i - 2] != AT_NULL);
67038 fill_note(note, "CORE", NT_AUXV, i * sizeof(elf_addr_t), auxv);
67039 }
67040
67041@@ -1493,7 +1972,7 @@ static void fill_siginfo_note(struct memelfnote *note, user_siginfo_t *csigdata,
67042 {
67043 mm_segment_t old_fs = get_fs();
67044 set_fs(KERNEL_DS);
67045- copy_siginfo_to_user((user_siginfo_t __user *) csigdata, siginfo);
67046+ copy_siginfo_to_user((user_siginfo_t __force_user *) csigdata, siginfo);
67047 set_fs(old_fs);
67048 fill_note(note, "CORE", NT_SIGINFO, sizeof(*csigdata), csigdata);
67049 }
67050@@ -2213,7 +2692,7 @@ static int elf_core_dump(struct coredump_params *cprm)
67051 vma = next_vma(vma, gate_vma)) {
67052 unsigned long dump_size;
67053
67054- dump_size = vma_dump_size(vma, cprm->mm_flags);
67055+ dump_size = vma_dump_size(vma, cprm->mm_flags, cprm->siginfo->si_signo);
67056 vma_filesz[i++] = dump_size;
67057 vma_data_size += dump_size;
67058 }
67059@@ -2321,6 +2800,167 @@ out:
67060
67061 #endif /* CONFIG_ELF_CORE */
67062
67063+#ifdef CONFIG_PAX_MPROTECT
67064+/* PaX: non-PIC ELF libraries need relocations on their executable segments
67065+ * therefore we'll grant them VM_MAYWRITE once during their life. Similarly
67066+ * we'll remove VM_MAYWRITE for good on RELRO segments.
67067+ *
67068+ * The checks favour ld-linux.so behaviour which operates on a per ELF segment
67069+ * basis because we want to allow the common case and not the special ones.
67070+ */
67071+static void elf_handle_mprotect(struct vm_area_struct *vma, unsigned long newflags)
67072+{
67073+ struct elfhdr elf_h;
67074+ struct elf_phdr elf_p;
67075+ unsigned long i;
67076+ unsigned long oldflags;
67077+ bool is_textrel_rw, is_textrel_rx, is_relro;
67078+
67079+ if (!(vma->vm_mm->pax_flags & MF_PAX_MPROTECT) || !vma->vm_file)
67080+ return;
67081+
67082+ oldflags = vma->vm_flags & (VM_MAYEXEC | VM_MAYWRITE | VM_MAYREAD | VM_EXEC | VM_WRITE | VM_READ);
67083+ newflags &= VM_MAYEXEC | VM_MAYWRITE | VM_MAYREAD | VM_EXEC | VM_WRITE | VM_READ;
67084+
67085+#ifdef CONFIG_PAX_ELFRELOCS
67086+ /* possible TEXTREL */
67087+ is_textrel_rw = !vma->anon_vma && oldflags == (VM_MAYEXEC | VM_MAYREAD | VM_EXEC | VM_READ) && newflags == (VM_WRITE | VM_READ);
67088+ is_textrel_rx = vma->anon_vma && oldflags == (VM_MAYEXEC | VM_MAYWRITE | VM_MAYREAD | VM_WRITE | VM_READ) && newflags == (VM_EXEC | VM_READ);
67089+#else
67090+ is_textrel_rw = false;
67091+ is_textrel_rx = false;
67092+#endif
67093+
67094+ /* possible RELRO */
67095+ is_relro = vma->anon_vma && oldflags == (VM_MAYWRITE | VM_MAYREAD | VM_READ) && newflags == (VM_MAYWRITE | VM_MAYREAD | VM_READ);
67096+
67097+ if (!is_textrel_rw && !is_textrel_rx && !is_relro)
67098+ return;
67099+
67100+ if (sizeof(elf_h) != kernel_read(vma->vm_file, 0UL, (char *)&elf_h, sizeof(elf_h)) ||
67101+ memcmp(elf_h.e_ident, ELFMAG, SELFMAG) ||
67102+
67103+#ifdef CONFIG_PAX_ETEXECRELOCS
67104+ ((is_textrel_rw || is_textrel_rx) && (elf_h.e_type != ET_DYN && elf_h.e_type != ET_EXEC)) ||
67105+#else
67106+ ((is_textrel_rw || is_textrel_rx) && elf_h.e_type != ET_DYN) ||
67107+#endif
67108+
67109+ (is_relro && (elf_h.e_type != ET_DYN && elf_h.e_type != ET_EXEC)) ||
67110+ !elf_check_arch(&elf_h) ||
67111+ elf_h.e_phentsize != sizeof(struct elf_phdr) ||
67112+ elf_h.e_phnum > 65536UL / sizeof(struct elf_phdr))
67113+ return;
67114+
67115+ for (i = 0UL; i < elf_h.e_phnum; i++) {
67116+ if (sizeof(elf_p) != kernel_read(vma->vm_file, elf_h.e_phoff + i*sizeof(elf_p), (char *)&elf_p, sizeof(elf_p)))
67117+ return;
67118+ switch (elf_p.p_type) {
67119+ case PT_DYNAMIC:
67120+ if (!is_textrel_rw && !is_textrel_rx)
67121+ continue;
67122+ i = 0UL;
67123+ while ((i+1) * sizeof(elf_dyn) <= elf_p.p_filesz) {
67124+ elf_dyn dyn;
67125+
67126+ if (sizeof(dyn) != kernel_read(vma->vm_file, elf_p.p_offset + i*sizeof(dyn), (char *)&dyn, sizeof(dyn)))
67127+ break;
67128+ if (dyn.d_tag == DT_NULL)
67129+ break;
67130+ if (dyn.d_tag == DT_TEXTREL || (dyn.d_tag == DT_FLAGS && (dyn.d_un.d_val & DF_TEXTREL))) {
67131+ gr_log_textrel(vma);
67132+ if (is_textrel_rw)
67133+ vma->vm_flags |= VM_MAYWRITE;
67134+ else
67135+ /* PaX: disallow write access after relocs are done, hopefully noone else needs it... */
67136+ vma->vm_flags &= ~VM_MAYWRITE;
67137+ break;
67138+ }
67139+ i++;
67140+ }
67141+ is_textrel_rw = false;
67142+ is_textrel_rx = false;
67143+ continue;
67144+
67145+ case PT_GNU_RELRO:
67146+ if (!is_relro)
67147+ continue;
67148+ if ((elf_p.p_offset >> PAGE_SHIFT) == vma->vm_pgoff && ELF_PAGEALIGN(elf_p.p_memsz) == vma->vm_end - vma->vm_start)
67149+ vma->vm_flags &= ~VM_MAYWRITE;
67150+ is_relro = false;
67151+ continue;
67152+
67153+#ifdef CONFIG_PAX_PT_PAX_FLAGS
67154+ case PT_PAX_FLAGS: {
67155+ const char *msg_mprotect = "", *msg_emutramp = "";
67156+ char *buffer_lib, *buffer_exe;
67157+
67158+ if (elf_p.p_flags & PF_NOMPROTECT)
67159+ msg_mprotect = "MPROTECT disabled";
67160+
67161+#ifdef CONFIG_PAX_EMUTRAMP
67162+ if (!(vma->vm_mm->pax_flags & MF_PAX_EMUTRAMP) && !(elf_p.p_flags & PF_NOEMUTRAMP))
67163+ msg_emutramp = "EMUTRAMP enabled";
67164+#endif
67165+
67166+ if (!msg_mprotect[0] && !msg_emutramp[0])
67167+ continue;
67168+
67169+ if (!printk_ratelimit())
67170+ continue;
67171+
67172+ buffer_lib = (char *)__get_free_page(GFP_KERNEL);
67173+ buffer_exe = (char *)__get_free_page(GFP_KERNEL);
67174+ if (buffer_lib && buffer_exe) {
67175+ char *path_lib, *path_exe;
67176+
67177+ path_lib = pax_get_path(&vma->vm_file->f_path, buffer_lib, PAGE_SIZE);
67178+ path_exe = pax_get_path(&vma->vm_mm->exe_file->f_path, buffer_exe, PAGE_SIZE);
67179+
67180+ pr_info("PAX: %s wants %s%s%s on %s\n", path_lib, msg_mprotect,
67181+ (msg_mprotect[0] && msg_emutramp[0] ? " and " : ""), msg_emutramp, path_exe);
67182+
67183+ }
67184+ free_page((unsigned long)buffer_exe);
67185+ free_page((unsigned long)buffer_lib);
67186+ continue;
67187+ }
67188+#endif
67189+
67190+ }
67191+ }
67192+}
67193+#endif
67194+
67195+#ifdef CONFIG_GRKERNSEC_RWXMAP_LOG
67196+
67197+extern int grsec_enable_log_rwxmaps;
67198+
67199+static void elf_handle_mmap(struct file *file)
67200+{
67201+ struct elfhdr elf_h;
67202+ struct elf_phdr elf_p;
67203+ unsigned long i;
67204+
67205+ if (!grsec_enable_log_rwxmaps)
67206+ return;
67207+
67208+ if (sizeof(elf_h) != kernel_read(file, 0UL, (char *)&elf_h, sizeof(elf_h)) ||
67209+ memcmp(elf_h.e_ident, ELFMAG, SELFMAG) ||
67210+ (elf_h.e_type != ET_DYN && elf_h.e_type != ET_EXEC) || !elf_check_arch(&elf_h) ||
67211+ elf_h.e_phentsize != sizeof(struct elf_phdr) ||
67212+ elf_h.e_phnum > 65536UL / sizeof(struct elf_phdr))
67213+ return;
67214+
67215+ for (i = 0UL; i < elf_h.e_phnum; i++) {
67216+ if (sizeof(elf_p) != kernel_read(file, elf_h.e_phoff + i*sizeof(elf_p), (char *)&elf_p, sizeof(elf_p)))
67217+ return;
67218+ if (elf_p.p_type == PT_GNU_STACK && (elf_p.p_flags & PF_X))
67219+ gr_log_ptgnustack(file);
67220+ }
67221+}
67222+#endif
67223+
67224 static int __init init_elf_binfmt(void)
67225 {
67226 register_binfmt(&elf_format);
67227diff --git a/fs/block_dev.c b/fs/block_dev.c
67228index 975266b..c3d1856 100644
67229--- a/fs/block_dev.c
67230+++ b/fs/block_dev.c
67231@@ -734,7 +734,7 @@ static bool bd_may_claim(struct block_device *bdev, struct block_device *whole,
67232 else if (bdev->bd_contains == bdev)
67233 return true; /* is a whole device which isn't held */
67234
67235- else if (whole->bd_holder == bd_may_claim)
67236+ else if (whole->bd_holder == (void *)bd_may_claim)
67237 return true; /* is a partition of a device that is being partitioned */
67238 else if (whole->bd_holder != NULL)
67239 return false; /* is a partition of a held device */
67240diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
67241index 6d67f32..8f33187 100644
67242--- a/fs/btrfs/ctree.c
67243+++ b/fs/btrfs/ctree.c
67244@@ -1181,9 +1181,12 @@ static noinline int __btrfs_cow_block(struct btrfs_trans_handle *trans,
67245 free_extent_buffer(buf);
67246 add_root_to_dirty_list(root);
67247 } else {
67248- if (root->root_key.objectid == BTRFS_TREE_RELOC_OBJECTID)
67249- parent_start = parent->start;
67250- else
67251+ if (root->root_key.objectid == BTRFS_TREE_RELOC_OBJECTID) {
67252+ if (parent)
67253+ parent_start = parent->start;
67254+ else
67255+ parent_start = 0;
67256+ } else
67257 parent_start = 0;
67258
67259 WARN_ON(trans->transid != btrfs_header_generation(parent));
67260diff --git a/fs/btrfs/delayed-inode.c b/fs/btrfs/delayed-inode.c
67261index 82f0c7c..dff78a8 100644
67262--- a/fs/btrfs/delayed-inode.c
67263+++ b/fs/btrfs/delayed-inode.c
67264@@ -462,7 +462,7 @@ static int __btrfs_add_delayed_deletion_item(struct btrfs_delayed_node *node,
67265
67266 static void finish_one_item(struct btrfs_delayed_root *delayed_root)
67267 {
67268- int seq = atomic_inc_return(&delayed_root->items_seq);
67269+ int seq = atomic_inc_return_unchecked(&delayed_root->items_seq);
67270 if ((atomic_dec_return(&delayed_root->items) <
67271 BTRFS_DELAYED_BACKGROUND || seq % BTRFS_DELAYED_BATCH == 0) &&
67272 waitqueue_active(&delayed_root->wait))
67273@@ -1412,7 +1412,7 @@ void btrfs_assert_delayed_root_empty(struct btrfs_root *root)
67274
67275 static int could_end_wait(struct btrfs_delayed_root *delayed_root, int seq)
67276 {
67277- int val = atomic_read(&delayed_root->items_seq);
67278+ int val = atomic_read_unchecked(&delayed_root->items_seq);
67279
67280 if (val < seq || val >= seq + BTRFS_DELAYED_BATCH)
67281 return 1;
67282@@ -1436,7 +1436,7 @@ void btrfs_balance_delayed_items(struct btrfs_root *root)
67283 int seq;
67284 int ret;
67285
67286- seq = atomic_read(&delayed_root->items_seq);
67287+ seq = atomic_read_unchecked(&delayed_root->items_seq);
67288
67289 ret = btrfs_wq_run_delayed_node(delayed_root, root, 0);
67290 if (ret)
67291diff --git a/fs/btrfs/delayed-inode.h b/fs/btrfs/delayed-inode.h
67292index f70119f..ab5894d 100644
67293--- a/fs/btrfs/delayed-inode.h
67294+++ b/fs/btrfs/delayed-inode.h
67295@@ -43,7 +43,7 @@ struct btrfs_delayed_root {
67296 */
67297 struct list_head prepare_list;
67298 atomic_t items; /* for delayed items */
67299- atomic_t items_seq; /* for delayed items */
67300+ atomic_unchecked_t items_seq; /* for delayed items */
67301 int nodes; /* for delayed nodes */
67302 wait_queue_head_t wait;
67303 };
67304@@ -90,7 +90,7 @@ static inline void btrfs_init_delayed_root(
67305 struct btrfs_delayed_root *delayed_root)
67306 {
67307 atomic_set(&delayed_root->items, 0);
67308- atomic_set(&delayed_root->items_seq, 0);
67309+ atomic_set_unchecked(&delayed_root->items_seq, 0);
67310 delayed_root->nodes = 0;
67311 spin_lock_init(&delayed_root->lock);
67312 init_waitqueue_head(&delayed_root->wait);
67313diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
67314index e477ed6..480c0db 100644
67315--- a/fs/btrfs/super.c
67316+++ b/fs/btrfs/super.c
67317@@ -271,7 +271,7 @@ void __btrfs_abort_transaction(struct btrfs_trans_handle *trans,
67318 function, line, errstr);
67319 return;
67320 }
67321- ACCESS_ONCE(trans->transaction->aborted) = errno;
67322+ ACCESS_ONCE_RW(trans->transaction->aborted) = errno;
67323 /* Wake up anybody who may be waiting on this transaction */
67324 wake_up(&root->fs_info->transaction_wait);
67325 wake_up(&root->fs_info->transaction_blocked_wait);
67326diff --git a/fs/btrfs/sysfs.c b/fs/btrfs/sysfs.c
67327index 94edb0a..e94dc93 100644
67328--- a/fs/btrfs/sysfs.c
67329+++ b/fs/btrfs/sysfs.c
67330@@ -472,7 +472,7 @@ static int addrm_unknown_feature_attrs(struct btrfs_fs_info *fs_info, bool add)
67331 for (set = 0; set < FEAT_MAX; set++) {
67332 int i;
67333 struct attribute *attrs[2];
67334- struct attribute_group agroup = {
67335+ attribute_group_no_const agroup = {
67336 .name = "features",
67337 .attrs = attrs,
67338 };
67339diff --git a/fs/btrfs/tests/free-space-tests.c b/fs/btrfs/tests/free-space-tests.c
67340index 2299bfd..4098e72 100644
67341--- a/fs/btrfs/tests/free-space-tests.c
67342+++ b/fs/btrfs/tests/free-space-tests.c
67343@@ -463,7 +463,9 @@ test_steal_space_from_bitmap_to_extent(struct btrfs_block_group_cache *cache)
67344 * extent entry.
67345 */
67346 use_bitmap_op = cache->free_space_ctl->op->use_bitmap;
67347- cache->free_space_ctl->op->use_bitmap = test_use_bitmap;
67348+ pax_open_kernel();
67349+ *(void **)&cache->free_space_ctl->op->use_bitmap = test_use_bitmap;
67350+ pax_close_kernel();
67351
67352 /*
67353 * Extent entry covering free space range [128Mb - 256Kb, 128Mb - 128Kb[
67354@@ -870,7 +872,9 @@ test_steal_space_from_bitmap_to_extent(struct btrfs_block_group_cache *cache)
67355 if (ret)
67356 return ret;
67357
67358- cache->free_space_ctl->op->use_bitmap = use_bitmap_op;
67359+ pax_open_kernel();
67360+ *(void **)&cache->free_space_ctl->op->use_bitmap = use_bitmap_op;
67361+ pax_close_kernel();
67362 __btrfs_remove_free_space_cache(cache->free_space_ctl);
67363
67364 return 0;
67365diff --git a/fs/btrfs/tree-log.h b/fs/btrfs/tree-log.h
67366index 154990c..d0cf699 100644
67367--- a/fs/btrfs/tree-log.h
67368+++ b/fs/btrfs/tree-log.h
67369@@ -43,7 +43,7 @@ static inline void btrfs_init_log_ctx(struct btrfs_log_ctx *ctx)
67370 static inline void btrfs_set_log_full_commit(struct btrfs_fs_info *fs_info,
67371 struct btrfs_trans_handle *trans)
67372 {
67373- ACCESS_ONCE(fs_info->last_trans_log_full_commit) = trans->transid;
67374+ ACCESS_ONCE_RW(fs_info->last_trans_log_full_commit) = trans->transid;
67375 }
67376
67377 static inline int btrfs_need_log_full_commit(struct btrfs_fs_info *fs_info,
67378diff --git a/fs/buffer.c b/fs/buffer.c
67379index 20805db..2e8fc69 100644
67380--- a/fs/buffer.c
67381+++ b/fs/buffer.c
67382@@ -3417,7 +3417,7 @@ void __init buffer_init(void)
67383 bh_cachep = kmem_cache_create("buffer_head",
67384 sizeof(struct buffer_head), 0,
67385 (SLAB_RECLAIM_ACCOUNT|SLAB_PANIC|
67386- SLAB_MEM_SPREAD),
67387+ SLAB_MEM_SPREAD|SLAB_NO_SANITIZE),
67388 NULL);
67389
67390 /*
67391diff --git a/fs/cachefiles/bind.c b/fs/cachefiles/bind.c
67392index fbb08e9..0fda764 100644
67393--- a/fs/cachefiles/bind.c
67394+++ b/fs/cachefiles/bind.c
67395@@ -39,13 +39,11 @@ int cachefiles_daemon_bind(struct cachefiles_cache *cache, char *args)
67396 args);
67397
67398 /* start by checking things over */
67399- ASSERT(cache->fstop_percent >= 0 &&
67400- cache->fstop_percent < cache->fcull_percent &&
67401+ ASSERT(cache->fstop_percent < cache->fcull_percent &&
67402 cache->fcull_percent < cache->frun_percent &&
67403 cache->frun_percent < 100);
67404
67405- ASSERT(cache->bstop_percent >= 0 &&
67406- cache->bstop_percent < cache->bcull_percent &&
67407+ ASSERT(cache->bstop_percent < cache->bcull_percent &&
67408 cache->bcull_percent < cache->brun_percent &&
67409 cache->brun_percent < 100);
67410
67411diff --git a/fs/cachefiles/daemon.c b/fs/cachefiles/daemon.c
67412index f601def..b2cf704 100644
67413--- a/fs/cachefiles/daemon.c
67414+++ b/fs/cachefiles/daemon.c
67415@@ -196,7 +196,7 @@ static ssize_t cachefiles_daemon_read(struct file *file, char __user *_buffer,
67416 if (n > buflen)
67417 return -EMSGSIZE;
67418
67419- if (copy_to_user(_buffer, buffer, n) != 0)
67420+ if (n > sizeof(buffer) || copy_to_user(_buffer, buffer, n) != 0)
67421 return -EFAULT;
67422
67423 return n;
67424@@ -222,7 +222,7 @@ static ssize_t cachefiles_daemon_write(struct file *file,
67425 if (test_bit(CACHEFILES_DEAD, &cache->flags))
67426 return -EIO;
67427
67428- if (datalen < 0 || datalen > PAGE_SIZE - 1)
67429+ if (datalen > PAGE_SIZE - 1)
67430 return -EOPNOTSUPP;
67431
67432 /* drag the command string into the kernel so we can parse it */
67433@@ -385,7 +385,7 @@ static int cachefiles_daemon_fstop(struct cachefiles_cache *cache, char *args)
67434 if (args[0] != '%' || args[1] != '\0')
67435 return -EINVAL;
67436
67437- if (fstop < 0 || fstop >= cache->fcull_percent)
67438+ if (fstop >= cache->fcull_percent)
67439 return cachefiles_daemon_range_error(cache, args);
67440
67441 cache->fstop_percent = fstop;
67442@@ -457,7 +457,7 @@ static int cachefiles_daemon_bstop(struct cachefiles_cache *cache, char *args)
67443 if (args[0] != '%' || args[1] != '\0')
67444 return -EINVAL;
67445
67446- if (bstop < 0 || bstop >= cache->bcull_percent)
67447+ if (bstop >= cache->bcull_percent)
67448 return cachefiles_daemon_range_error(cache, args);
67449
67450 cache->bstop_percent = bstop;
67451diff --git a/fs/cachefiles/internal.h b/fs/cachefiles/internal.h
67452index 8c52472..c4e3a69 100644
67453--- a/fs/cachefiles/internal.h
67454+++ b/fs/cachefiles/internal.h
67455@@ -66,7 +66,7 @@ struct cachefiles_cache {
67456 wait_queue_head_t daemon_pollwq; /* poll waitqueue for daemon */
67457 struct rb_root active_nodes; /* active nodes (can't be culled) */
67458 rwlock_t active_lock; /* lock for active_nodes */
67459- atomic_t gravecounter; /* graveyard uniquifier */
67460+ atomic_unchecked_t gravecounter; /* graveyard uniquifier */
67461 unsigned frun_percent; /* when to stop culling (% files) */
67462 unsigned fcull_percent; /* when to start culling (% files) */
67463 unsigned fstop_percent; /* when to stop allocating (% files) */
67464@@ -178,19 +178,19 @@ extern int cachefiles_check_in_use(struct cachefiles_cache *cache,
67465 * proc.c
67466 */
67467 #ifdef CONFIG_CACHEFILES_HISTOGRAM
67468-extern atomic_t cachefiles_lookup_histogram[HZ];
67469-extern atomic_t cachefiles_mkdir_histogram[HZ];
67470-extern atomic_t cachefiles_create_histogram[HZ];
67471+extern atomic_unchecked_t cachefiles_lookup_histogram[HZ];
67472+extern atomic_unchecked_t cachefiles_mkdir_histogram[HZ];
67473+extern atomic_unchecked_t cachefiles_create_histogram[HZ];
67474
67475 extern int __init cachefiles_proc_init(void);
67476 extern void cachefiles_proc_cleanup(void);
67477 static inline
67478-void cachefiles_hist(atomic_t histogram[], unsigned long start_jif)
67479+void cachefiles_hist(atomic_unchecked_t histogram[], unsigned long start_jif)
67480 {
67481 unsigned long jif = jiffies - start_jif;
67482 if (jif >= HZ)
67483 jif = HZ - 1;
67484- atomic_inc(&histogram[jif]);
67485+ atomic_inc_unchecked(&histogram[jif]);
67486 }
67487
67488 #else
67489diff --git a/fs/cachefiles/namei.c b/fs/cachefiles/namei.c
67490index 1e51714e..411eded 100644
67491--- a/fs/cachefiles/namei.c
67492+++ b/fs/cachefiles/namei.c
67493@@ -309,7 +309,7 @@ try_again:
67494 /* first step is to make up a grave dentry in the graveyard */
67495 sprintf(nbuffer, "%08x%08x",
67496 (uint32_t) get_seconds(),
67497- (uint32_t) atomic_inc_return(&cache->gravecounter));
67498+ (uint32_t) atomic_inc_return_unchecked(&cache->gravecounter));
67499
67500 /* do the multiway lock magic */
67501 trap = lock_rename(cache->graveyard, dir);
67502diff --git a/fs/cachefiles/proc.c b/fs/cachefiles/proc.c
67503index eccd339..4c1d995 100644
67504--- a/fs/cachefiles/proc.c
67505+++ b/fs/cachefiles/proc.c
67506@@ -14,9 +14,9 @@
67507 #include <linux/seq_file.h>
67508 #include "internal.h"
67509
67510-atomic_t cachefiles_lookup_histogram[HZ];
67511-atomic_t cachefiles_mkdir_histogram[HZ];
67512-atomic_t cachefiles_create_histogram[HZ];
67513+atomic_unchecked_t cachefiles_lookup_histogram[HZ];
67514+atomic_unchecked_t cachefiles_mkdir_histogram[HZ];
67515+atomic_unchecked_t cachefiles_create_histogram[HZ];
67516
67517 /*
67518 * display the latency histogram
67519@@ -35,9 +35,9 @@ static int cachefiles_histogram_show(struct seq_file *m, void *v)
67520 return 0;
67521 default:
67522 index = (unsigned long) v - 3;
67523- x = atomic_read(&cachefiles_lookup_histogram[index]);
67524- y = atomic_read(&cachefiles_mkdir_histogram[index]);
67525- z = atomic_read(&cachefiles_create_histogram[index]);
67526+ x = atomic_read_unchecked(&cachefiles_lookup_histogram[index]);
67527+ y = atomic_read_unchecked(&cachefiles_mkdir_histogram[index]);
67528+ z = atomic_read_unchecked(&cachefiles_create_histogram[index]);
67529 if (x == 0 && y == 0 && z == 0)
67530 return 0;
67531
67532diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c
67533index 83e9976..bfd1eee 100644
67534--- a/fs/ceph/dir.c
67535+++ b/fs/ceph/dir.c
67536@@ -127,6 +127,8 @@ static int __dcache_readdir(struct file *file, struct dir_context *ctx,
67537 struct dentry *dentry, *last;
67538 struct ceph_dentry_info *di;
67539 int err = 0;
67540+ char d_name[DNAME_INLINE_LEN];
67541+ const unsigned char *name;
67542
67543 /* claim ref on last dentry we returned */
67544 last = fi->dentry;
67545@@ -190,7 +192,12 @@ more:
67546
67547 dout(" %llu (%llu) dentry %p %pd %p\n", di->offset, ctx->pos,
67548 dentry, dentry, dentry->d_inode);
67549- if (!dir_emit(ctx, dentry->d_name.name,
67550+ name = dentry->d_name.name;
67551+ if (name == dentry->d_iname) {
67552+ memcpy(d_name, name, dentry->d_name.len);
67553+ name = d_name;
67554+ }
67555+ if (!dir_emit(ctx, name,
67556 dentry->d_name.len,
67557 ceph_translate_ino(dentry->d_sb, dentry->d_inode->i_ino),
67558 dentry->d_inode->i_mode >> 12)) {
67559@@ -248,7 +255,7 @@ static int ceph_readdir(struct file *file, struct dir_context *ctx)
67560 struct ceph_fs_client *fsc = ceph_inode_to_client(inode);
67561 struct ceph_mds_client *mdsc = fsc->mdsc;
67562 unsigned frag = fpos_frag(ctx->pos);
67563- int off = fpos_off(ctx->pos);
67564+ unsigned int off = fpos_off(ctx->pos);
67565 int err;
67566 u32 ftype;
67567 struct ceph_mds_reply_info_parsed *rinfo;
67568diff --git a/fs/ceph/super.c b/fs/ceph/super.c
67569index a63997b..ddc0577 100644
67570--- a/fs/ceph/super.c
67571+++ b/fs/ceph/super.c
67572@@ -889,7 +889,7 @@ static int ceph_compare_super(struct super_block *sb, void *data)
67573 /*
67574 * construct our own bdi so we can control readahead, etc.
67575 */
67576-static atomic_long_t bdi_seq = ATOMIC_LONG_INIT(0);
67577+static atomic_long_unchecked_t bdi_seq = ATOMIC_LONG_INIT(0);
67578
67579 static int ceph_register_bdi(struct super_block *sb,
67580 struct ceph_fs_client *fsc)
67581@@ -906,7 +906,7 @@ static int ceph_register_bdi(struct super_block *sb,
67582 VM_MAX_READAHEAD * 1024 / PAGE_CACHE_SIZE;
67583
67584 err = bdi_register(&fsc->backing_dev_info, NULL, "ceph-%ld",
67585- atomic_long_inc_return(&bdi_seq));
67586+ atomic_long_inc_return_unchecked(&bdi_seq));
67587 if (!err)
67588 sb->s_bdi = &fsc->backing_dev_info;
67589 return err;
67590diff --git a/fs/cifs/cifs_debug.c b/fs/cifs/cifs_debug.c
67591index 7febcf2..62a5721 100644
67592--- a/fs/cifs/cifs_debug.c
67593+++ b/fs/cifs/cifs_debug.c
67594@@ -269,8 +269,8 @@ static ssize_t cifs_stats_proc_write(struct file *file,
67595
67596 if (strtobool(&c, &bv) == 0) {
67597 #ifdef CONFIG_CIFS_STATS2
67598- atomic_set(&totBufAllocCount, 0);
67599- atomic_set(&totSmBufAllocCount, 0);
67600+ atomic_set_unchecked(&totBufAllocCount, 0);
67601+ atomic_set_unchecked(&totSmBufAllocCount, 0);
67602 #endif /* CONFIG_CIFS_STATS2 */
67603 spin_lock(&cifs_tcp_ses_lock);
67604 list_for_each(tmp1, &cifs_tcp_ses_list) {
67605@@ -283,7 +283,7 @@ static ssize_t cifs_stats_proc_write(struct file *file,
67606 tcon = list_entry(tmp3,
67607 struct cifs_tcon,
67608 tcon_list);
67609- atomic_set(&tcon->num_smbs_sent, 0);
67610+ atomic_set_unchecked(&tcon->num_smbs_sent, 0);
67611 if (server->ops->clear_stats)
67612 server->ops->clear_stats(tcon);
67613 }
67614@@ -315,8 +315,8 @@ static int cifs_stats_proc_show(struct seq_file *m, void *v)
67615 smBufAllocCount.counter, cifs_min_small);
67616 #ifdef CONFIG_CIFS_STATS2
67617 seq_printf(m, "Total Large %d Small %d Allocations\n",
67618- atomic_read(&totBufAllocCount),
67619- atomic_read(&totSmBufAllocCount));
67620+ atomic_read_unchecked(&totBufAllocCount),
67621+ atomic_read_unchecked(&totSmBufAllocCount));
67622 #endif /* CONFIG_CIFS_STATS2 */
67623
67624 seq_printf(m, "Operations (MIDs): %d\n", atomic_read(&midCount));
67625@@ -345,7 +345,7 @@ static int cifs_stats_proc_show(struct seq_file *m, void *v)
67626 if (tcon->need_reconnect)
67627 seq_puts(m, "\tDISCONNECTED ");
67628 seq_printf(m, "\nSMBs: %d",
67629- atomic_read(&tcon->num_smbs_sent));
67630+ atomic_read_unchecked(&tcon->num_smbs_sent));
67631 if (server->ops->print_stats)
67632 server->ops->print_stats(m, tcon);
67633 }
67634diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
67635index d72fe37..ded5511 100644
67636--- a/fs/cifs/cifsfs.c
67637+++ b/fs/cifs/cifsfs.c
67638@@ -1092,7 +1092,7 @@ cifs_init_request_bufs(void)
67639 */
67640 cifs_req_cachep = kmem_cache_create("cifs_request",
67641 CIFSMaxBufSize + max_hdr_size, 0,
67642- SLAB_HWCACHE_ALIGN, NULL);
67643+ SLAB_HWCACHE_ALIGN | SLAB_USERCOPY, NULL);
67644 if (cifs_req_cachep == NULL)
67645 return -ENOMEM;
67646
67647@@ -1119,7 +1119,7 @@ cifs_init_request_bufs(void)
67648 efficient to alloc 1 per page off the slab compared to 17K (5page)
67649 alloc of large cifs buffers even when page debugging is on */
67650 cifs_sm_req_cachep = kmem_cache_create("cifs_small_rq",
67651- MAX_CIFS_SMALL_BUFFER_SIZE, 0, SLAB_HWCACHE_ALIGN,
67652+ MAX_CIFS_SMALL_BUFFER_SIZE, 0, SLAB_HWCACHE_ALIGN | SLAB_USERCOPY,
67653 NULL);
67654 if (cifs_sm_req_cachep == NULL) {
67655 mempool_destroy(cifs_req_poolp);
67656@@ -1204,8 +1204,8 @@ init_cifs(void)
67657 atomic_set(&bufAllocCount, 0);
67658 atomic_set(&smBufAllocCount, 0);
67659 #ifdef CONFIG_CIFS_STATS2
67660- atomic_set(&totBufAllocCount, 0);
67661- atomic_set(&totSmBufAllocCount, 0);
67662+ atomic_set_unchecked(&totBufAllocCount, 0);
67663+ atomic_set_unchecked(&totSmBufAllocCount, 0);
67664 #endif /* CONFIG_CIFS_STATS2 */
67665
67666 atomic_set(&midCount, 0);
67667diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
67668index 22b289a..bbbba082 100644
67669--- a/fs/cifs/cifsglob.h
67670+++ b/fs/cifs/cifsglob.h
67671@@ -823,35 +823,35 @@ struct cifs_tcon {
67672 __u16 Flags; /* optional support bits */
67673 enum statusEnum tidStatus;
67674 #ifdef CONFIG_CIFS_STATS
67675- atomic_t num_smbs_sent;
67676+ atomic_unchecked_t num_smbs_sent;
67677 union {
67678 struct {
67679- atomic_t num_writes;
67680- atomic_t num_reads;
67681- atomic_t num_flushes;
67682- atomic_t num_oplock_brks;
67683- atomic_t num_opens;
67684- atomic_t num_closes;
67685- atomic_t num_deletes;
67686- atomic_t num_mkdirs;
67687- atomic_t num_posixopens;
67688- atomic_t num_posixmkdirs;
67689- atomic_t num_rmdirs;
67690- atomic_t num_renames;
67691- atomic_t num_t2renames;
67692- atomic_t num_ffirst;
67693- atomic_t num_fnext;
67694- atomic_t num_fclose;
67695- atomic_t num_hardlinks;
67696- atomic_t num_symlinks;
67697- atomic_t num_locks;
67698- atomic_t num_acl_get;
67699- atomic_t num_acl_set;
67700+ atomic_unchecked_t num_writes;
67701+ atomic_unchecked_t num_reads;
67702+ atomic_unchecked_t num_flushes;
67703+ atomic_unchecked_t num_oplock_brks;
67704+ atomic_unchecked_t num_opens;
67705+ atomic_unchecked_t num_closes;
67706+ atomic_unchecked_t num_deletes;
67707+ atomic_unchecked_t num_mkdirs;
67708+ atomic_unchecked_t num_posixopens;
67709+ atomic_unchecked_t num_posixmkdirs;
67710+ atomic_unchecked_t num_rmdirs;
67711+ atomic_unchecked_t num_renames;
67712+ atomic_unchecked_t num_t2renames;
67713+ atomic_unchecked_t num_ffirst;
67714+ atomic_unchecked_t num_fnext;
67715+ atomic_unchecked_t num_fclose;
67716+ atomic_unchecked_t num_hardlinks;
67717+ atomic_unchecked_t num_symlinks;
67718+ atomic_unchecked_t num_locks;
67719+ atomic_unchecked_t num_acl_get;
67720+ atomic_unchecked_t num_acl_set;
67721 } cifs_stats;
67722 #ifdef CONFIG_CIFS_SMB2
67723 struct {
67724- atomic_t smb2_com_sent[NUMBER_OF_SMB2_COMMANDS];
67725- atomic_t smb2_com_failed[NUMBER_OF_SMB2_COMMANDS];
67726+ atomic_unchecked_t smb2_com_sent[NUMBER_OF_SMB2_COMMANDS];
67727+ atomic_unchecked_t smb2_com_failed[NUMBER_OF_SMB2_COMMANDS];
67728 } smb2_stats;
67729 #endif /* CONFIG_CIFS_SMB2 */
67730 } stats;
67731@@ -1198,7 +1198,7 @@ convert_delimiter(char *path, char delim)
67732 }
67733
67734 #ifdef CONFIG_CIFS_STATS
67735-#define cifs_stats_inc atomic_inc
67736+#define cifs_stats_inc atomic_inc_unchecked
67737
67738 static inline void cifs_stats_bytes_written(struct cifs_tcon *tcon,
67739 unsigned int bytes)
67740@@ -1565,8 +1565,8 @@ GLOBAL_EXTERN atomic_t tconInfoReconnectCount;
67741 /* Various Debug counters */
67742 GLOBAL_EXTERN atomic_t bufAllocCount; /* current number allocated */
67743 #ifdef CONFIG_CIFS_STATS2
67744-GLOBAL_EXTERN atomic_t totBufAllocCount; /* total allocated over all time */
67745-GLOBAL_EXTERN atomic_t totSmBufAllocCount;
67746+GLOBAL_EXTERN atomic_unchecked_t totBufAllocCount; /* total allocated over all time */
67747+GLOBAL_EXTERN atomic_unchecked_t totSmBufAllocCount;
67748 #endif
67749 GLOBAL_EXTERN atomic_t smBufAllocCount;
67750 GLOBAL_EXTERN atomic_t midCount;
67751diff --git a/fs/cifs/file.c b/fs/cifs/file.c
67752index ca30c39..570fb94 100644
67753--- a/fs/cifs/file.c
67754+++ b/fs/cifs/file.c
67755@@ -2055,10 +2055,14 @@ static int cifs_writepages(struct address_space *mapping,
67756 index = mapping->writeback_index; /* Start from prev offset */
67757 end = -1;
67758 } else {
67759- index = wbc->range_start >> PAGE_CACHE_SHIFT;
67760- end = wbc->range_end >> PAGE_CACHE_SHIFT;
67761- if (wbc->range_start == 0 && wbc->range_end == LLONG_MAX)
67762+ if (wbc->range_start == 0 && wbc->range_end == LLONG_MAX) {
67763 range_whole = true;
67764+ index = 0;
67765+ end = ULONG_MAX;
67766+ } else {
67767+ index = wbc->range_start >> PAGE_CACHE_SHIFT;
67768+ end = wbc->range_end >> PAGE_CACHE_SHIFT;
67769+ }
67770 scanned = true;
67771 }
67772 server = cifs_sb_master_tcon(cifs_sb)->ses->server;
67773diff --git a/fs/cifs/misc.c b/fs/cifs/misc.c
67774index 3379463..3af418a 100644
67775--- a/fs/cifs/misc.c
67776+++ b/fs/cifs/misc.c
67777@@ -170,7 +170,7 @@ cifs_buf_get(void)
67778 memset(ret_buf, 0, buf_size + 3);
67779 atomic_inc(&bufAllocCount);
67780 #ifdef CONFIG_CIFS_STATS2
67781- atomic_inc(&totBufAllocCount);
67782+ atomic_inc_unchecked(&totBufAllocCount);
67783 #endif /* CONFIG_CIFS_STATS2 */
67784 }
67785
67786@@ -205,7 +205,7 @@ cifs_small_buf_get(void)
67787 /* memset(ret_buf, 0, sizeof(struct smb_hdr) + 27);*/
67788 atomic_inc(&smBufAllocCount);
67789 #ifdef CONFIG_CIFS_STATS2
67790- atomic_inc(&totSmBufAllocCount);
67791+ atomic_inc_unchecked(&totSmBufAllocCount);
67792 #endif /* CONFIG_CIFS_STATS2 */
67793
67794 }
67795diff --git a/fs/cifs/smb1ops.c b/fs/cifs/smb1ops.c
67796index d297903..1cb7516 100644
67797--- a/fs/cifs/smb1ops.c
67798+++ b/fs/cifs/smb1ops.c
67799@@ -622,27 +622,27 @@ static void
67800 cifs_clear_stats(struct cifs_tcon *tcon)
67801 {
67802 #ifdef CONFIG_CIFS_STATS
67803- atomic_set(&tcon->stats.cifs_stats.num_writes, 0);
67804- atomic_set(&tcon->stats.cifs_stats.num_reads, 0);
67805- atomic_set(&tcon->stats.cifs_stats.num_flushes, 0);
67806- atomic_set(&tcon->stats.cifs_stats.num_oplock_brks, 0);
67807- atomic_set(&tcon->stats.cifs_stats.num_opens, 0);
67808- atomic_set(&tcon->stats.cifs_stats.num_posixopens, 0);
67809- atomic_set(&tcon->stats.cifs_stats.num_posixmkdirs, 0);
67810- atomic_set(&tcon->stats.cifs_stats.num_closes, 0);
67811- atomic_set(&tcon->stats.cifs_stats.num_deletes, 0);
67812- atomic_set(&tcon->stats.cifs_stats.num_mkdirs, 0);
67813- atomic_set(&tcon->stats.cifs_stats.num_rmdirs, 0);
67814- atomic_set(&tcon->stats.cifs_stats.num_renames, 0);
67815- atomic_set(&tcon->stats.cifs_stats.num_t2renames, 0);
67816- atomic_set(&tcon->stats.cifs_stats.num_ffirst, 0);
67817- atomic_set(&tcon->stats.cifs_stats.num_fnext, 0);
67818- atomic_set(&tcon->stats.cifs_stats.num_fclose, 0);
67819- atomic_set(&tcon->stats.cifs_stats.num_hardlinks, 0);
67820- atomic_set(&tcon->stats.cifs_stats.num_symlinks, 0);
67821- atomic_set(&tcon->stats.cifs_stats.num_locks, 0);
67822- atomic_set(&tcon->stats.cifs_stats.num_acl_get, 0);
67823- atomic_set(&tcon->stats.cifs_stats.num_acl_set, 0);
67824+ atomic_set_unchecked(&tcon->stats.cifs_stats.num_writes, 0);
67825+ atomic_set_unchecked(&tcon->stats.cifs_stats.num_reads, 0);
67826+ atomic_set_unchecked(&tcon->stats.cifs_stats.num_flushes, 0);
67827+ atomic_set_unchecked(&tcon->stats.cifs_stats.num_oplock_brks, 0);
67828+ atomic_set_unchecked(&tcon->stats.cifs_stats.num_opens, 0);
67829+ atomic_set_unchecked(&tcon->stats.cifs_stats.num_posixopens, 0);
67830+ atomic_set_unchecked(&tcon->stats.cifs_stats.num_posixmkdirs, 0);
67831+ atomic_set_unchecked(&tcon->stats.cifs_stats.num_closes, 0);
67832+ atomic_set_unchecked(&tcon->stats.cifs_stats.num_deletes, 0);
67833+ atomic_set_unchecked(&tcon->stats.cifs_stats.num_mkdirs, 0);
67834+ atomic_set_unchecked(&tcon->stats.cifs_stats.num_rmdirs, 0);
67835+ atomic_set_unchecked(&tcon->stats.cifs_stats.num_renames, 0);
67836+ atomic_set_unchecked(&tcon->stats.cifs_stats.num_t2renames, 0);
67837+ atomic_set_unchecked(&tcon->stats.cifs_stats.num_ffirst, 0);
67838+ atomic_set_unchecked(&tcon->stats.cifs_stats.num_fnext, 0);
67839+ atomic_set_unchecked(&tcon->stats.cifs_stats.num_fclose, 0);
67840+ atomic_set_unchecked(&tcon->stats.cifs_stats.num_hardlinks, 0);
67841+ atomic_set_unchecked(&tcon->stats.cifs_stats.num_symlinks, 0);
67842+ atomic_set_unchecked(&tcon->stats.cifs_stats.num_locks, 0);
67843+ atomic_set_unchecked(&tcon->stats.cifs_stats.num_acl_get, 0);
67844+ atomic_set_unchecked(&tcon->stats.cifs_stats.num_acl_set, 0);
67845 #endif
67846 }
67847
67848@@ -651,36 +651,36 @@ cifs_print_stats(struct seq_file *m, struct cifs_tcon *tcon)
67849 {
67850 #ifdef CONFIG_CIFS_STATS
67851 seq_printf(m, " Oplocks breaks: %d",
67852- atomic_read(&tcon->stats.cifs_stats.num_oplock_brks));
67853+ atomic_read_unchecked(&tcon->stats.cifs_stats.num_oplock_brks));
67854 seq_printf(m, "\nReads: %d Bytes: %llu",
67855- atomic_read(&tcon->stats.cifs_stats.num_reads),
67856+ atomic_read_unchecked(&tcon->stats.cifs_stats.num_reads),
67857 (long long)(tcon->bytes_read));
67858 seq_printf(m, "\nWrites: %d Bytes: %llu",
67859- atomic_read(&tcon->stats.cifs_stats.num_writes),
67860+ atomic_read_unchecked(&tcon->stats.cifs_stats.num_writes),
67861 (long long)(tcon->bytes_written));
67862 seq_printf(m, "\nFlushes: %d",
67863- atomic_read(&tcon->stats.cifs_stats.num_flushes));
67864+ atomic_read_unchecked(&tcon->stats.cifs_stats.num_flushes));
67865 seq_printf(m, "\nLocks: %d HardLinks: %d Symlinks: %d",
67866- atomic_read(&tcon->stats.cifs_stats.num_locks),
67867- atomic_read(&tcon->stats.cifs_stats.num_hardlinks),
67868- atomic_read(&tcon->stats.cifs_stats.num_symlinks));
67869+ atomic_read_unchecked(&tcon->stats.cifs_stats.num_locks),
67870+ atomic_read_unchecked(&tcon->stats.cifs_stats.num_hardlinks),
67871+ atomic_read_unchecked(&tcon->stats.cifs_stats.num_symlinks));
67872 seq_printf(m, "\nOpens: %d Closes: %d Deletes: %d",
67873- atomic_read(&tcon->stats.cifs_stats.num_opens),
67874- atomic_read(&tcon->stats.cifs_stats.num_closes),
67875- atomic_read(&tcon->stats.cifs_stats.num_deletes));
67876+ atomic_read_unchecked(&tcon->stats.cifs_stats.num_opens),
67877+ atomic_read_unchecked(&tcon->stats.cifs_stats.num_closes),
67878+ atomic_read_unchecked(&tcon->stats.cifs_stats.num_deletes));
67879 seq_printf(m, "\nPosix Opens: %d Posix Mkdirs: %d",
67880- atomic_read(&tcon->stats.cifs_stats.num_posixopens),
67881- atomic_read(&tcon->stats.cifs_stats.num_posixmkdirs));
67882+ atomic_read_unchecked(&tcon->stats.cifs_stats.num_posixopens),
67883+ atomic_read_unchecked(&tcon->stats.cifs_stats.num_posixmkdirs));
67884 seq_printf(m, "\nMkdirs: %d Rmdirs: %d",
67885- atomic_read(&tcon->stats.cifs_stats.num_mkdirs),
67886- atomic_read(&tcon->stats.cifs_stats.num_rmdirs));
67887+ atomic_read_unchecked(&tcon->stats.cifs_stats.num_mkdirs),
67888+ atomic_read_unchecked(&tcon->stats.cifs_stats.num_rmdirs));
67889 seq_printf(m, "\nRenames: %d T2 Renames %d",
67890- atomic_read(&tcon->stats.cifs_stats.num_renames),
67891- atomic_read(&tcon->stats.cifs_stats.num_t2renames));
67892+ atomic_read_unchecked(&tcon->stats.cifs_stats.num_renames),
67893+ atomic_read_unchecked(&tcon->stats.cifs_stats.num_t2renames));
67894 seq_printf(m, "\nFindFirst: %d FNext %d FClose %d",
67895- atomic_read(&tcon->stats.cifs_stats.num_ffirst),
67896- atomic_read(&tcon->stats.cifs_stats.num_fnext),
67897- atomic_read(&tcon->stats.cifs_stats.num_fclose));
67898+ atomic_read_unchecked(&tcon->stats.cifs_stats.num_ffirst),
67899+ atomic_read_unchecked(&tcon->stats.cifs_stats.num_fnext),
67900+ atomic_read_unchecked(&tcon->stats.cifs_stats.num_fclose));
67901 #endif
67902 }
67903
67904diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
67905index eab05e1..ffe5ea4 100644
67906--- a/fs/cifs/smb2ops.c
67907+++ b/fs/cifs/smb2ops.c
67908@@ -418,8 +418,8 @@ smb2_clear_stats(struct cifs_tcon *tcon)
67909 #ifdef CONFIG_CIFS_STATS
67910 int i;
67911 for (i = 0; i < NUMBER_OF_SMB2_COMMANDS; i++) {
67912- atomic_set(&tcon->stats.smb2_stats.smb2_com_sent[i], 0);
67913- atomic_set(&tcon->stats.smb2_stats.smb2_com_failed[i], 0);
67914+ atomic_set_unchecked(&tcon->stats.smb2_stats.smb2_com_sent[i], 0);
67915+ atomic_set_unchecked(&tcon->stats.smb2_stats.smb2_com_failed[i], 0);
67916 }
67917 #endif
67918 }
67919@@ -459,65 +459,65 @@ static void
67920 smb2_print_stats(struct seq_file *m, struct cifs_tcon *tcon)
67921 {
67922 #ifdef CONFIG_CIFS_STATS
67923- atomic_t *sent = tcon->stats.smb2_stats.smb2_com_sent;
67924- atomic_t *failed = tcon->stats.smb2_stats.smb2_com_failed;
67925+ atomic_unchecked_t *sent = tcon->stats.smb2_stats.smb2_com_sent;
67926+ atomic_unchecked_t *failed = tcon->stats.smb2_stats.smb2_com_failed;
67927 seq_printf(m, "\nNegotiates: %d sent %d failed",
67928- atomic_read(&sent[SMB2_NEGOTIATE_HE]),
67929- atomic_read(&failed[SMB2_NEGOTIATE_HE]));
67930+ atomic_read_unchecked(&sent[SMB2_NEGOTIATE_HE]),
67931+ atomic_read_unchecked(&failed[SMB2_NEGOTIATE_HE]));
67932 seq_printf(m, "\nSessionSetups: %d sent %d failed",
67933- atomic_read(&sent[SMB2_SESSION_SETUP_HE]),
67934- atomic_read(&failed[SMB2_SESSION_SETUP_HE]));
67935+ atomic_read_unchecked(&sent[SMB2_SESSION_SETUP_HE]),
67936+ atomic_read_unchecked(&failed[SMB2_SESSION_SETUP_HE]));
67937 seq_printf(m, "\nLogoffs: %d sent %d failed",
67938- atomic_read(&sent[SMB2_LOGOFF_HE]),
67939- atomic_read(&failed[SMB2_LOGOFF_HE]));
67940+ atomic_read_unchecked(&sent[SMB2_LOGOFF_HE]),
67941+ atomic_read_unchecked(&failed[SMB2_LOGOFF_HE]));
67942 seq_printf(m, "\nTreeConnects: %d sent %d failed",
67943- atomic_read(&sent[SMB2_TREE_CONNECT_HE]),
67944- atomic_read(&failed[SMB2_TREE_CONNECT_HE]));
67945+ atomic_read_unchecked(&sent[SMB2_TREE_CONNECT_HE]),
67946+ atomic_read_unchecked(&failed[SMB2_TREE_CONNECT_HE]));
67947 seq_printf(m, "\nTreeDisconnects: %d sent %d failed",
67948- atomic_read(&sent[SMB2_TREE_DISCONNECT_HE]),
67949- atomic_read(&failed[SMB2_TREE_DISCONNECT_HE]));
67950+ atomic_read_unchecked(&sent[SMB2_TREE_DISCONNECT_HE]),
67951+ atomic_read_unchecked(&failed[SMB2_TREE_DISCONNECT_HE]));
67952 seq_printf(m, "\nCreates: %d sent %d failed",
67953- atomic_read(&sent[SMB2_CREATE_HE]),
67954- atomic_read(&failed[SMB2_CREATE_HE]));
67955+ atomic_read_unchecked(&sent[SMB2_CREATE_HE]),
67956+ atomic_read_unchecked(&failed[SMB2_CREATE_HE]));
67957 seq_printf(m, "\nCloses: %d sent %d failed",
67958- atomic_read(&sent[SMB2_CLOSE_HE]),
67959- atomic_read(&failed[SMB2_CLOSE_HE]));
67960+ atomic_read_unchecked(&sent[SMB2_CLOSE_HE]),
67961+ atomic_read_unchecked(&failed[SMB2_CLOSE_HE]));
67962 seq_printf(m, "\nFlushes: %d sent %d failed",
67963- atomic_read(&sent[SMB2_FLUSH_HE]),
67964- atomic_read(&failed[SMB2_FLUSH_HE]));
67965+ atomic_read_unchecked(&sent[SMB2_FLUSH_HE]),
67966+ atomic_read_unchecked(&failed[SMB2_FLUSH_HE]));
67967 seq_printf(m, "\nReads: %d sent %d failed",
67968- atomic_read(&sent[SMB2_READ_HE]),
67969- atomic_read(&failed[SMB2_READ_HE]));
67970+ atomic_read_unchecked(&sent[SMB2_READ_HE]),
67971+ atomic_read_unchecked(&failed[SMB2_READ_HE]));
67972 seq_printf(m, "\nWrites: %d sent %d failed",
67973- atomic_read(&sent[SMB2_WRITE_HE]),
67974- atomic_read(&failed[SMB2_WRITE_HE]));
67975+ atomic_read_unchecked(&sent[SMB2_WRITE_HE]),
67976+ atomic_read_unchecked(&failed[SMB2_WRITE_HE]));
67977 seq_printf(m, "\nLocks: %d sent %d failed",
67978- atomic_read(&sent[SMB2_LOCK_HE]),
67979- atomic_read(&failed[SMB2_LOCK_HE]));
67980+ atomic_read_unchecked(&sent[SMB2_LOCK_HE]),
67981+ atomic_read_unchecked(&failed[SMB2_LOCK_HE]));
67982 seq_printf(m, "\nIOCTLs: %d sent %d failed",
67983- atomic_read(&sent[SMB2_IOCTL_HE]),
67984- atomic_read(&failed[SMB2_IOCTL_HE]));
67985+ atomic_read_unchecked(&sent[SMB2_IOCTL_HE]),
67986+ atomic_read_unchecked(&failed[SMB2_IOCTL_HE]));
67987 seq_printf(m, "\nCancels: %d sent %d failed",
67988- atomic_read(&sent[SMB2_CANCEL_HE]),
67989- atomic_read(&failed[SMB2_CANCEL_HE]));
67990+ atomic_read_unchecked(&sent[SMB2_CANCEL_HE]),
67991+ atomic_read_unchecked(&failed[SMB2_CANCEL_HE]));
67992 seq_printf(m, "\nEchos: %d sent %d failed",
67993- atomic_read(&sent[SMB2_ECHO_HE]),
67994- atomic_read(&failed[SMB2_ECHO_HE]));
67995+ atomic_read_unchecked(&sent[SMB2_ECHO_HE]),
67996+ atomic_read_unchecked(&failed[SMB2_ECHO_HE]));
67997 seq_printf(m, "\nQueryDirectories: %d sent %d failed",
67998- atomic_read(&sent[SMB2_QUERY_DIRECTORY_HE]),
67999- atomic_read(&failed[SMB2_QUERY_DIRECTORY_HE]));
68000+ atomic_read_unchecked(&sent[SMB2_QUERY_DIRECTORY_HE]),
68001+ atomic_read_unchecked(&failed[SMB2_QUERY_DIRECTORY_HE]));
68002 seq_printf(m, "\nChangeNotifies: %d sent %d failed",
68003- atomic_read(&sent[SMB2_CHANGE_NOTIFY_HE]),
68004- atomic_read(&failed[SMB2_CHANGE_NOTIFY_HE]));
68005+ atomic_read_unchecked(&sent[SMB2_CHANGE_NOTIFY_HE]),
68006+ atomic_read_unchecked(&failed[SMB2_CHANGE_NOTIFY_HE]));
68007 seq_printf(m, "\nQueryInfos: %d sent %d failed",
68008- atomic_read(&sent[SMB2_QUERY_INFO_HE]),
68009- atomic_read(&failed[SMB2_QUERY_INFO_HE]));
68010+ atomic_read_unchecked(&sent[SMB2_QUERY_INFO_HE]),
68011+ atomic_read_unchecked(&failed[SMB2_QUERY_INFO_HE]));
68012 seq_printf(m, "\nSetInfos: %d sent %d failed",
68013- atomic_read(&sent[SMB2_SET_INFO_HE]),
68014- atomic_read(&failed[SMB2_SET_INFO_HE]));
68015+ atomic_read_unchecked(&sent[SMB2_SET_INFO_HE]),
68016+ atomic_read_unchecked(&failed[SMB2_SET_INFO_HE]));
68017 seq_printf(m, "\nOplockBreaks: %d sent %d failed",
68018- atomic_read(&sent[SMB2_OPLOCK_BREAK_HE]),
68019- atomic_read(&failed[SMB2_OPLOCK_BREAK_HE]));
68020+ atomic_read_unchecked(&sent[SMB2_OPLOCK_BREAK_HE]),
68021+ atomic_read_unchecked(&failed[SMB2_OPLOCK_BREAK_HE]));
68022 #endif
68023 }
68024
68025diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
68026index 65cd7a8..3518676 100644
68027--- a/fs/cifs/smb2pdu.c
68028+++ b/fs/cifs/smb2pdu.c
68029@@ -2147,8 +2147,7 @@ SMB2_query_directory(const unsigned int xid, struct cifs_tcon *tcon,
68030 default:
68031 cifs_dbg(VFS, "info level %u isn't supported\n",
68032 srch_inf->info_level);
68033- rc = -EINVAL;
68034- goto qdir_exit;
68035+ return -EINVAL;
68036 }
68037
68038 req->FileIndex = cpu_to_le32(index);
68039diff --git a/fs/coda/cache.c b/fs/coda/cache.c
68040index 46ee6f2..89a9e7f 100644
68041--- a/fs/coda/cache.c
68042+++ b/fs/coda/cache.c
68043@@ -24,7 +24,7 @@
68044 #include "coda_linux.h"
68045 #include "coda_cache.h"
68046
68047-static atomic_t permission_epoch = ATOMIC_INIT(0);
68048+static atomic_unchecked_t permission_epoch = ATOMIC_INIT(0);
68049
68050 /* replace or extend an acl cache hit */
68051 void coda_cache_enter(struct inode *inode, int mask)
68052@@ -32,7 +32,7 @@ void coda_cache_enter(struct inode *inode, int mask)
68053 struct coda_inode_info *cii = ITOC(inode);
68054
68055 spin_lock(&cii->c_lock);
68056- cii->c_cached_epoch = atomic_read(&permission_epoch);
68057+ cii->c_cached_epoch = atomic_read_unchecked(&permission_epoch);
68058 if (!uid_eq(cii->c_uid, current_fsuid())) {
68059 cii->c_uid = current_fsuid();
68060 cii->c_cached_perm = mask;
68061@@ -46,14 +46,14 @@ void coda_cache_clear_inode(struct inode *inode)
68062 {
68063 struct coda_inode_info *cii = ITOC(inode);
68064 spin_lock(&cii->c_lock);
68065- cii->c_cached_epoch = atomic_read(&permission_epoch) - 1;
68066+ cii->c_cached_epoch = atomic_read_unchecked(&permission_epoch) - 1;
68067 spin_unlock(&cii->c_lock);
68068 }
68069
68070 /* remove all acl caches */
68071 void coda_cache_clear_all(struct super_block *sb)
68072 {
68073- atomic_inc(&permission_epoch);
68074+ atomic_inc_unchecked(&permission_epoch);
68075 }
68076
68077
68078@@ -66,7 +66,7 @@ int coda_cache_check(struct inode *inode, int mask)
68079 spin_lock(&cii->c_lock);
68080 hit = (mask & cii->c_cached_perm) == mask &&
68081 uid_eq(cii->c_uid, current_fsuid()) &&
68082- cii->c_cached_epoch == atomic_read(&permission_epoch);
68083+ cii->c_cached_epoch == atomic_read_unchecked(&permission_epoch);
68084 spin_unlock(&cii->c_lock);
68085
68086 return hit;
68087diff --git a/fs/compat.c b/fs/compat.c
68088index 6fd272d..dd34ba2 100644
68089--- a/fs/compat.c
68090+++ b/fs/compat.c
68091@@ -54,7 +54,7 @@
68092 #include <asm/ioctls.h>
68093 #include "internal.h"
68094
68095-int compat_log = 1;
68096+int compat_log = 0;
68097
68098 int compat_printk(const char *fmt, ...)
68099 {
68100@@ -512,7 +512,7 @@ COMPAT_SYSCALL_DEFINE2(io_setup, unsigned, nr_reqs, u32 __user *, ctx32p)
68101
68102 set_fs(KERNEL_DS);
68103 /* The __user pointer cast is valid because of the set_fs() */
68104- ret = sys_io_setup(nr_reqs, (aio_context_t __user *) &ctx64);
68105+ ret = sys_io_setup(nr_reqs, (aio_context_t __force_user *) &ctx64);
68106 set_fs(oldfs);
68107 /* truncating is ok because it's a user address */
68108 if (!ret)
68109@@ -562,7 +562,7 @@ ssize_t compat_rw_copy_check_uvector(int type,
68110 goto out;
68111
68112 ret = -EINVAL;
68113- if (nr_segs > UIO_MAXIOV || nr_segs < 0)
68114+ if (nr_segs > UIO_MAXIOV)
68115 goto out;
68116 if (nr_segs > fast_segs) {
68117 ret = -ENOMEM;
68118@@ -844,6 +844,7 @@ struct compat_old_linux_dirent {
68119 struct compat_readdir_callback {
68120 struct dir_context ctx;
68121 struct compat_old_linux_dirent __user *dirent;
68122+ struct file * file;
68123 int result;
68124 };
68125
68126@@ -863,6 +864,10 @@ static int compat_fillonedir(struct dir_context *ctx, const char *name,
68127 buf->result = -EOVERFLOW;
68128 return -EOVERFLOW;
68129 }
68130+
68131+ if (!gr_acl_handle_filldir(buf->file, name, namlen, ino))
68132+ return 0;
68133+
68134 buf->result++;
68135 dirent = buf->dirent;
68136 if (!access_ok(VERIFY_WRITE, dirent,
68137@@ -894,6 +899,7 @@ COMPAT_SYSCALL_DEFINE3(old_readdir, unsigned int, fd,
68138 if (!f.file)
68139 return -EBADF;
68140
68141+ buf.file = f.file;
68142 error = iterate_dir(f.file, &buf.ctx);
68143 if (buf.result)
68144 error = buf.result;
68145@@ -913,6 +919,7 @@ struct compat_getdents_callback {
68146 struct dir_context ctx;
68147 struct compat_linux_dirent __user *current_dir;
68148 struct compat_linux_dirent __user *previous;
68149+ struct file * file;
68150 int count;
68151 int error;
68152 };
68153@@ -935,6 +942,10 @@ static int compat_filldir(struct dir_context *ctx, const char *name, int namlen,
68154 buf->error = -EOVERFLOW;
68155 return -EOVERFLOW;
68156 }
68157+
68158+ if (!gr_acl_handle_filldir(buf->file, name, namlen, ino))
68159+ return 0;
68160+
68161 dirent = buf->previous;
68162 if (dirent) {
68163 if (__put_user(offset, &dirent->d_off))
68164@@ -980,6 +991,7 @@ COMPAT_SYSCALL_DEFINE3(getdents, unsigned int, fd,
68165 if (!f.file)
68166 return -EBADF;
68167
68168+ buf.file = f.file;
68169 error = iterate_dir(f.file, &buf.ctx);
68170 if (error >= 0)
68171 error = buf.error;
68172@@ -1000,6 +1012,7 @@ struct compat_getdents_callback64 {
68173 struct dir_context ctx;
68174 struct linux_dirent64 __user *current_dir;
68175 struct linux_dirent64 __user *previous;
68176+ struct file * file;
68177 int count;
68178 int error;
68179 };
68180@@ -1018,6 +1031,10 @@ static int compat_filldir64(struct dir_context *ctx, const char *name,
68181 buf->error = -EINVAL; /* only used if we fail.. */
68182 if (reclen > buf->count)
68183 return -EINVAL;
68184+
68185+ if (!gr_acl_handle_filldir(buf->file, name, namlen, ino))
68186+ return 0;
68187+
68188 dirent = buf->previous;
68189
68190 if (dirent) {
68191@@ -1067,6 +1084,7 @@ COMPAT_SYSCALL_DEFINE3(getdents64, unsigned int, fd,
68192 if (!f.file)
68193 return -EBADF;
68194
68195+ buf.file = f.file;
68196 error = iterate_dir(f.file, &buf.ctx);
68197 if (error >= 0)
68198 error = buf.error;
68199diff --git a/fs/compat_binfmt_elf.c b/fs/compat_binfmt_elf.c
68200index 4d24d17..4f8c09e 100644
68201--- a/fs/compat_binfmt_elf.c
68202+++ b/fs/compat_binfmt_elf.c
68203@@ -30,11 +30,13 @@
68204 #undef elf_phdr
68205 #undef elf_shdr
68206 #undef elf_note
68207+#undef elf_dyn
68208 #undef elf_addr_t
68209 #define elfhdr elf32_hdr
68210 #define elf_phdr elf32_phdr
68211 #define elf_shdr elf32_shdr
68212 #define elf_note elf32_note
68213+#define elf_dyn Elf32_Dyn
68214 #define elf_addr_t Elf32_Addr
68215
68216 /*
68217diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c
68218index afec645..9c65620 100644
68219--- a/fs/compat_ioctl.c
68220+++ b/fs/compat_ioctl.c
68221@@ -621,7 +621,7 @@ static int serial_struct_ioctl(unsigned fd, unsigned cmd,
68222 return -EFAULT;
68223 if (__get_user(udata, &ss32->iomem_base))
68224 return -EFAULT;
68225- ss.iomem_base = compat_ptr(udata);
68226+ ss.iomem_base = (unsigned char __force_kernel *)compat_ptr(udata);
68227 if (__get_user(ss.iomem_reg_shift, &ss32->iomem_reg_shift) ||
68228 __get_user(ss.port_high, &ss32->port_high))
68229 return -EFAULT;
68230@@ -703,8 +703,8 @@ static int do_i2c_rdwr_ioctl(unsigned int fd, unsigned int cmd,
68231 for (i = 0; i < nmsgs; i++) {
68232 if (copy_in_user(&tmsgs[i].addr, &umsgs[i].addr, 3*sizeof(u16)))
68233 return -EFAULT;
68234- if (get_user(datap, &umsgs[i].buf) ||
68235- put_user(compat_ptr(datap), &tmsgs[i].buf))
68236+ if (get_user(datap, (compat_caddr_t __user *)&umsgs[i].buf) ||
68237+ put_user(compat_ptr(datap), (u8 __user * __user *)&tmsgs[i].buf))
68238 return -EFAULT;
68239 }
68240 return sys_ioctl(fd, cmd, (unsigned long)tdata);
68241@@ -797,7 +797,7 @@ static int compat_ioctl_preallocate(struct file *file,
68242 copy_in_user(&p->l_len, &p32->l_len, sizeof(s64)) ||
68243 copy_in_user(&p->l_sysid, &p32->l_sysid, sizeof(s32)) ||
68244 copy_in_user(&p->l_pid, &p32->l_pid, sizeof(u32)) ||
68245- copy_in_user(&p->l_pad, &p32->l_pad, 4*sizeof(u32)))
68246+ copy_in_user(p->l_pad, p32->l_pad, 4*sizeof(u32)))
68247 return -EFAULT;
68248
68249 return ioctl_preallocate(file, p);
68250@@ -1618,8 +1618,8 @@ COMPAT_SYSCALL_DEFINE3(ioctl, unsigned int, fd, unsigned int, cmd,
68251 static int __init init_sys32_ioctl_cmp(const void *p, const void *q)
68252 {
68253 unsigned int a, b;
68254- a = *(unsigned int *)p;
68255- b = *(unsigned int *)q;
68256+ a = *(const unsigned int *)p;
68257+ b = *(const unsigned int *)q;
68258 if (a > b)
68259 return 1;
68260 if (a < b)
68261diff --git a/fs/configfs/dir.c b/fs/configfs/dir.c
68262index cf0db00..c7f70e8 100644
68263--- a/fs/configfs/dir.c
68264+++ b/fs/configfs/dir.c
68265@@ -1540,7 +1540,8 @@ static int configfs_readdir(struct file *file, struct dir_context *ctx)
68266 }
68267 for (p = q->next; p != &parent_sd->s_children; p = p->next) {
68268 struct configfs_dirent *next;
68269- const char *name;
68270+ const unsigned char * name;
68271+ char d_name[sizeof(next->s_dentry->d_iname)];
68272 int len;
68273 struct inode *inode = NULL;
68274
68275@@ -1549,7 +1550,12 @@ static int configfs_readdir(struct file *file, struct dir_context *ctx)
68276 continue;
68277
68278 name = configfs_get_name(next);
68279- len = strlen(name);
68280+ if (next->s_dentry && name == next->s_dentry->d_iname) {
68281+ len = next->s_dentry->d_name.len;
68282+ memcpy(d_name, name, len);
68283+ name = d_name;
68284+ } else
68285+ len = strlen(name);
68286
68287 /*
68288 * We'll have a dentry and an inode for
68289diff --git a/fs/coredump.c b/fs/coredump.c
68290index bbbe139..b76fae5 100644
68291--- a/fs/coredump.c
68292+++ b/fs/coredump.c
68293@@ -450,8 +450,8 @@ static void wait_for_dump_helpers(struct file *file)
68294 struct pipe_inode_info *pipe = file->private_data;
68295
68296 pipe_lock(pipe);
68297- pipe->readers++;
68298- pipe->writers--;
68299+ atomic_inc(&pipe->readers);
68300+ atomic_dec(&pipe->writers);
68301 wake_up_interruptible_sync(&pipe->wait);
68302 kill_fasync(&pipe->fasync_readers, SIGIO, POLL_IN);
68303 pipe_unlock(pipe);
68304@@ -460,11 +460,11 @@ static void wait_for_dump_helpers(struct file *file)
68305 * We actually want wait_event_freezable() but then we need
68306 * to clear TIF_SIGPENDING and improve dump_interrupted().
68307 */
68308- wait_event_interruptible(pipe->wait, pipe->readers == 1);
68309+ wait_event_interruptible(pipe->wait, atomic_read(&pipe->readers) == 1);
68310
68311 pipe_lock(pipe);
68312- pipe->readers--;
68313- pipe->writers++;
68314+ atomic_dec(&pipe->readers);
68315+ atomic_inc(&pipe->writers);
68316 pipe_unlock(pipe);
68317 }
68318
68319@@ -511,7 +511,9 @@ void do_coredump(const siginfo_t *siginfo)
68320 struct files_struct *displaced;
68321 bool need_nonrelative = false;
68322 bool core_dumped = false;
68323- static atomic_t core_dump_count = ATOMIC_INIT(0);
68324+ static atomic_unchecked_t core_dump_count = ATOMIC_INIT(0);
68325+ long signr = siginfo->si_signo;
68326+ int dumpable;
68327 struct coredump_params cprm = {
68328 .siginfo = siginfo,
68329 .regs = signal_pt_regs(),
68330@@ -524,12 +526,17 @@ void do_coredump(const siginfo_t *siginfo)
68331 .mm_flags = mm->flags,
68332 };
68333
68334- audit_core_dumps(siginfo->si_signo);
68335+ audit_core_dumps(signr);
68336+
68337+ dumpable = __get_dumpable(cprm.mm_flags);
68338+
68339+ if (signr == SIGSEGV || signr == SIGBUS || signr == SIGKILL || signr == SIGILL)
68340+ gr_handle_brute_attach(dumpable);
68341
68342 binfmt = mm->binfmt;
68343 if (!binfmt || !binfmt->core_dump)
68344 goto fail;
68345- if (!__get_dumpable(cprm.mm_flags))
68346+ if (!dumpable)
68347 goto fail;
68348
68349 cred = prepare_creds();
68350@@ -548,7 +555,7 @@ void do_coredump(const siginfo_t *siginfo)
68351 need_nonrelative = true;
68352 }
68353
68354- retval = coredump_wait(siginfo->si_signo, &core_state);
68355+ retval = coredump_wait(signr, &core_state);
68356 if (retval < 0)
68357 goto fail_creds;
68358
68359@@ -591,7 +598,7 @@ void do_coredump(const siginfo_t *siginfo)
68360 }
68361 cprm.limit = RLIM_INFINITY;
68362
68363- dump_count = atomic_inc_return(&core_dump_count);
68364+ dump_count = atomic_inc_return_unchecked(&core_dump_count);
68365 if (core_pipe_limit && (core_pipe_limit < dump_count)) {
68366 printk(KERN_WARNING "Pid %d(%s) over core_pipe_limit\n",
68367 task_tgid_vnr(current), current->comm);
68368@@ -623,6 +630,8 @@ void do_coredump(const siginfo_t *siginfo)
68369 } else {
68370 struct inode *inode;
68371
68372+ gr_learn_resource(current, RLIMIT_CORE, binfmt->min_coredump, 1);
68373+
68374 if (cprm.limit < binfmt->min_coredump)
68375 goto fail_unlock;
68376
68377@@ -681,7 +690,7 @@ close_fail:
68378 filp_close(cprm.file, NULL);
68379 fail_dropcount:
68380 if (ispipe)
68381- atomic_dec(&core_dump_count);
68382+ atomic_dec_unchecked(&core_dump_count);
68383 fail_unlock:
68384 kfree(cn.corename);
68385 coredump_finish(mm, core_dumped);
68386@@ -702,6 +711,8 @@ int dump_emit(struct coredump_params *cprm, const void *addr, int nr)
68387 struct file *file = cprm->file;
68388 loff_t pos = file->f_pos;
68389 ssize_t n;
68390+
68391+ gr_learn_resource(current, RLIMIT_CORE, cprm->written + nr, 1);
68392 if (cprm->written + nr > cprm->limit)
68393 return 0;
68394 while (nr) {
68395diff --git a/fs/dcache.c b/fs/dcache.c
68396index 922f23e..05e38ae 100644
68397--- a/fs/dcache.c
68398+++ b/fs/dcache.c
68399@@ -511,7 +511,7 @@ static void __dentry_kill(struct dentry *dentry)
68400 * dentry_iput drops the locks, at which point nobody (except
68401 * transient RCU lookups) can reach this dentry.
68402 */
68403- BUG_ON(dentry->d_lockref.count > 0);
68404+ BUG_ON(__lockref_read(&dentry->d_lockref) > 0);
68405 this_cpu_dec(nr_dentry);
68406 if (dentry->d_op && dentry->d_op->d_release)
68407 dentry->d_op->d_release(dentry);
68408@@ -564,7 +564,7 @@ static inline struct dentry *lock_parent(struct dentry *dentry)
68409 struct dentry *parent = dentry->d_parent;
68410 if (IS_ROOT(dentry))
68411 return NULL;
68412- if (unlikely(dentry->d_lockref.count < 0))
68413+ if (unlikely(__lockref_read(&dentry->d_lockref) < 0))
68414 return NULL;
68415 if (likely(spin_trylock(&parent->d_lock)))
68416 return parent;
68417@@ -626,8 +626,8 @@ static inline bool fast_dput(struct dentry *dentry)
68418 */
68419 if (unlikely(ret < 0)) {
68420 spin_lock(&dentry->d_lock);
68421- if (dentry->d_lockref.count > 1) {
68422- dentry->d_lockref.count--;
68423+ if (__lockref_read(&dentry->d_lockref) > 1) {
68424+ __lockref_dec(&dentry->d_lockref);
68425 spin_unlock(&dentry->d_lock);
68426 return 1;
68427 }
68428@@ -682,7 +682,7 @@ static inline bool fast_dput(struct dentry *dentry)
68429 * else could have killed it and marked it dead. Either way, we
68430 * don't need to do anything else.
68431 */
68432- if (dentry->d_lockref.count) {
68433+ if (__lockref_read(&dentry->d_lockref)) {
68434 spin_unlock(&dentry->d_lock);
68435 return 1;
68436 }
68437@@ -692,7 +692,7 @@ static inline bool fast_dput(struct dentry *dentry)
68438 * lock, and we just tested that it was zero, so we can just
68439 * set it to 1.
68440 */
68441- dentry->d_lockref.count = 1;
68442+ __lockref_set(&dentry->d_lockref, 1);
68443 return 0;
68444 }
68445
68446@@ -751,7 +751,7 @@ repeat:
68447 dentry->d_flags |= DCACHE_REFERENCED;
68448 dentry_lru_add(dentry);
68449
68450- dentry->d_lockref.count--;
68451+ __lockref_dec(&dentry->d_lockref);
68452 spin_unlock(&dentry->d_lock);
68453 return;
68454
68455@@ -766,7 +766,7 @@ EXPORT_SYMBOL(dput);
68456 /* This must be called with d_lock held */
68457 static inline void __dget_dlock(struct dentry *dentry)
68458 {
68459- dentry->d_lockref.count++;
68460+ __lockref_inc(&dentry->d_lockref);
68461 }
68462
68463 static inline void __dget(struct dentry *dentry)
68464@@ -807,8 +807,8 @@ repeat:
68465 goto repeat;
68466 }
68467 rcu_read_unlock();
68468- BUG_ON(!ret->d_lockref.count);
68469- ret->d_lockref.count++;
68470+ BUG_ON(!__lockref_read(&ret->d_lockref));
68471+ __lockref_inc(&ret->d_lockref);
68472 spin_unlock(&ret->d_lock);
68473 return ret;
68474 }
68475@@ -886,9 +886,9 @@ restart:
68476 spin_lock(&inode->i_lock);
68477 hlist_for_each_entry(dentry, &inode->i_dentry, d_u.d_alias) {
68478 spin_lock(&dentry->d_lock);
68479- if (!dentry->d_lockref.count) {
68480+ if (!__lockref_read(&dentry->d_lockref)) {
68481 struct dentry *parent = lock_parent(dentry);
68482- if (likely(!dentry->d_lockref.count)) {
68483+ if (likely(!__lockref_read(&dentry->d_lockref))) {
68484 __dentry_kill(dentry);
68485 dput(parent);
68486 goto restart;
68487@@ -923,7 +923,7 @@ static void shrink_dentry_list(struct list_head *list)
68488 * We found an inuse dentry which was not removed from
68489 * the LRU because of laziness during lookup. Do not free it.
68490 */
68491- if (dentry->d_lockref.count > 0) {
68492+ if (__lockref_read(&dentry->d_lockref) > 0) {
68493 spin_unlock(&dentry->d_lock);
68494 if (parent)
68495 spin_unlock(&parent->d_lock);
68496@@ -961,8 +961,8 @@ static void shrink_dentry_list(struct list_head *list)
68497 dentry = parent;
68498 while (dentry && !lockref_put_or_lock(&dentry->d_lockref)) {
68499 parent = lock_parent(dentry);
68500- if (dentry->d_lockref.count != 1) {
68501- dentry->d_lockref.count--;
68502+ if (__lockref_read(&dentry->d_lockref) != 1) {
68503+ __lockref_inc(&dentry->d_lockref);
68504 spin_unlock(&dentry->d_lock);
68505 if (parent)
68506 spin_unlock(&parent->d_lock);
68507@@ -1002,7 +1002,7 @@ static enum lru_status dentry_lru_isolate(struct list_head *item,
68508 * counts, just remove them from the LRU. Otherwise give them
68509 * another pass through the LRU.
68510 */
68511- if (dentry->d_lockref.count) {
68512+ if (__lockref_read(&dentry->d_lockref)) {
68513 d_lru_isolate(lru, dentry);
68514 spin_unlock(&dentry->d_lock);
68515 return LRU_REMOVED;
68516@@ -1336,7 +1336,7 @@ static enum d_walk_ret select_collect(void *_data, struct dentry *dentry)
68517 } else {
68518 if (dentry->d_flags & DCACHE_LRU_LIST)
68519 d_lru_del(dentry);
68520- if (!dentry->d_lockref.count) {
68521+ if (!__lockref_read(&dentry->d_lockref)) {
68522 d_shrink_add(dentry, &data->dispose);
68523 data->found++;
68524 }
68525@@ -1384,7 +1384,7 @@ static enum d_walk_ret umount_check(void *_data, struct dentry *dentry)
68526 return D_WALK_CONTINUE;
68527
68528 /* root with refcount 1 is fine */
68529- if (dentry == _data && dentry->d_lockref.count == 1)
68530+ if (dentry == _data && __lockref_read(&dentry->d_lockref) == 1)
68531 return D_WALK_CONTINUE;
68532
68533 printk(KERN_ERR "BUG: Dentry %p{i=%lx,n=%pd} "
68534@@ -1393,7 +1393,7 @@ static enum d_walk_ret umount_check(void *_data, struct dentry *dentry)
68535 dentry->d_inode ?
68536 dentry->d_inode->i_ino : 0UL,
68537 dentry,
68538- dentry->d_lockref.count,
68539+ __lockref_read(&dentry->d_lockref),
68540 dentry->d_sb->s_type->name,
68541 dentry->d_sb->s_id);
68542 WARN_ON(1);
68543@@ -1534,7 +1534,7 @@ struct dentry *__d_alloc(struct super_block *sb, const struct qstr *name)
68544 dentry->d_iname[DNAME_INLINE_LEN-1] = 0;
68545 if (name->len > DNAME_INLINE_LEN-1) {
68546 size_t size = offsetof(struct external_name, name[1]);
68547- struct external_name *p = kmalloc(size + name->len, GFP_KERNEL);
68548+ struct external_name *p = kmalloc(round_up(size + name->len, sizeof(unsigned long)), GFP_KERNEL);
68549 if (!p) {
68550 kmem_cache_free(dentry_cache, dentry);
68551 return NULL;
68552@@ -1557,7 +1557,7 @@ struct dentry *__d_alloc(struct super_block *sb, const struct qstr *name)
68553 smp_wmb();
68554 dentry->d_name.name = dname;
68555
68556- dentry->d_lockref.count = 1;
68557+ __lockref_set(&dentry->d_lockref, 1);
68558 dentry->d_flags = 0;
68559 spin_lock_init(&dentry->d_lock);
68560 seqcount_init(&dentry->d_seq);
68561@@ -1566,6 +1566,9 @@ struct dentry *__d_alloc(struct super_block *sb, const struct qstr *name)
68562 dentry->d_sb = sb;
68563 dentry->d_op = NULL;
68564 dentry->d_fsdata = NULL;
68565+#ifdef CONFIG_GRKERNSEC_CHROOT_RENAME
68566+ atomic_set(&dentry->chroot_refcnt, 0);
68567+#endif
68568 INIT_HLIST_BL_NODE(&dentry->d_hash);
68569 INIT_LIST_HEAD(&dentry->d_lru);
68570 INIT_LIST_HEAD(&dentry->d_subdirs);
68571@@ -2290,7 +2293,7 @@ struct dentry *__d_lookup(const struct dentry *parent, const struct qstr *name)
68572 goto next;
68573 }
68574
68575- dentry->d_lockref.count++;
68576+ __lockref_inc(&dentry->d_lockref);
68577 found = dentry;
68578 spin_unlock(&dentry->d_lock);
68579 break;
68580@@ -2358,7 +2361,7 @@ again:
68581 spin_lock(&dentry->d_lock);
68582 inode = dentry->d_inode;
68583 isdir = S_ISDIR(inode->i_mode);
68584- if (dentry->d_lockref.count == 1) {
68585+ if (__lockref_read(&dentry->d_lockref) == 1) {
68586 if (!spin_trylock(&inode->i_lock)) {
68587 spin_unlock(&dentry->d_lock);
68588 cpu_relax();
68589@@ -3311,7 +3314,7 @@ static enum d_walk_ret d_genocide_kill(void *data, struct dentry *dentry)
68590
68591 if (!(dentry->d_flags & DCACHE_GENOCIDE)) {
68592 dentry->d_flags |= DCACHE_GENOCIDE;
68593- dentry->d_lockref.count--;
68594+ __lockref_dec(&dentry->d_lockref);
68595 }
68596 }
68597 return D_WALK_CONTINUE;
68598@@ -3427,7 +3430,8 @@ void __init vfs_caches_init(unsigned long mempages)
68599 mempages -= reserve;
68600
68601 names_cachep = kmem_cache_create("names_cache", PATH_MAX, 0,
68602- SLAB_HWCACHE_ALIGN|SLAB_PANIC, NULL);
68603+ SLAB_HWCACHE_ALIGN|SLAB_PANIC|SLAB_USERCOPY|
68604+ SLAB_NO_SANITIZE, NULL);
68605
68606 dcache_init();
68607 inode_init();
68608diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c
68609index 96400ab..906103d 100644
68610--- a/fs/debugfs/inode.c
68611+++ b/fs/debugfs/inode.c
68612@@ -386,6 +386,10 @@ struct dentry *debugfs_create_file_size(const char *name, umode_t mode,
68613 }
68614 EXPORT_SYMBOL_GPL(debugfs_create_file_size);
68615
68616+#ifdef CONFIG_GRKERNSEC_SYSFS_RESTRICT
68617+extern int grsec_enable_sysfs_restrict;
68618+#endif
68619+
68620 /**
68621 * debugfs_create_dir - create a directory in the debugfs filesystem
68622 * @name: a pointer to a string containing the name of the directory to
68623@@ -404,6 +408,10 @@ EXPORT_SYMBOL_GPL(debugfs_create_file_size);
68624 * If debugfs is not enabled in the kernel, the value -%ENODEV will be
68625 * returned.
68626 */
68627+#ifdef CONFIG_GRKERNSEC_SYSFS_RESTRICT
68628+extern int grsec_enable_sysfs_restrict;
68629+#endif
68630+
68631 struct dentry *debugfs_create_dir(const char *name, struct dentry *parent)
68632 {
68633 struct dentry *dentry = start_creating(name, parent);
68634@@ -416,7 +424,12 @@ struct dentry *debugfs_create_dir(const char *name, struct dentry *parent)
68635 if (unlikely(!inode))
68636 return failed_creating(dentry);
68637
68638- inode->i_mode = S_IFDIR | S_IRWXU | S_IRUGO | S_IXUGO;
68639+#ifdef CONFIG_GRKERNSEC_SYSFS_RESTRICT
68640+ if (grsec_enable_sysfs_restrict)
68641+ inode->i_mode = S_IFDIR | S_IRWXU;
68642+ else
68643+#endif
68644+ inode->i_mode = S_IFDIR | S_IRWXU | S_IRUGO | S_IXUGO;
68645 inode->i_op = &simple_dir_inode_operations;
68646 inode->i_fop = &simple_dir_operations;
68647
68648diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c
68649index b08b518..d6acffa 100644
68650--- a/fs/ecryptfs/inode.c
68651+++ b/fs/ecryptfs/inode.c
68652@@ -663,7 +663,7 @@ static char *ecryptfs_readlink_lower(struct dentry *dentry, size_t *bufsiz)
68653 old_fs = get_fs();
68654 set_fs(get_ds());
68655 rc = lower_dentry->d_inode->i_op->readlink(lower_dentry,
68656- (char __user *)lower_buf,
68657+ (char __force_user *)lower_buf,
68658 PATH_MAX);
68659 set_fs(old_fs);
68660 if (rc < 0)
68661diff --git a/fs/ecryptfs/miscdev.c b/fs/ecryptfs/miscdev.c
68662index e4141f2..d8263e8 100644
68663--- a/fs/ecryptfs/miscdev.c
68664+++ b/fs/ecryptfs/miscdev.c
68665@@ -304,7 +304,7 @@ check_list:
68666 goto out_unlock_msg_ctx;
68667 i = PKT_TYPE_SIZE + PKT_CTR_SIZE;
68668 if (msg_ctx->msg) {
68669- if (copy_to_user(&buf[i], packet_length, packet_length_size))
68670+ if (packet_length_size > sizeof(packet_length) || copy_to_user(&buf[i], packet_length, packet_length_size))
68671 goto out_unlock_msg_ctx;
68672 i += packet_length_size;
68673 if (copy_to_user(&buf[i], msg_ctx->msg, msg_ctx->msg_size))
68674diff --git a/fs/exec.c b/fs/exec.c
68675index 1202445..620c98e 100644
68676--- a/fs/exec.c
68677+++ b/fs/exec.c
68678@@ -56,8 +56,20 @@
68679 #include <linux/pipe_fs_i.h>
68680 #include <linux/oom.h>
68681 #include <linux/compat.h>
68682+#include <linux/random.h>
68683+#include <linux/seq_file.h>
68684+#include <linux/coredump.h>
68685+#include <linux/mman.h>
68686+
68687+#ifdef CONFIG_PAX_REFCOUNT
68688+#include <linux/kallsyms.h>
68689+#include <linux/kdebug.h>
68690+#endif
68691+
68692+#include <trace/events/fs.h>
68693
68694 #include <asm/uaccess.h>
68695+#include <asm/sections.h>
68696 #include <asm/mmu_context.h>
68697 #include <asm/tlb.h>
68698
68699@@ -66,19 +78,34 @@
68700
68701 #include <trace/events/sched.h>
68702
68703+#ifdef CONFIG_PAX_HAVE_ACL_FLAGS
68704+void __weak pax_set_initial_flags(struct linux_binprm *bprm)
68705+{
68706+ pr_warn_once("PAX: PAX_HAVE_ACL_FLAGS was enabled without providing the pax_set_initial_flags callback, this is probably not what you wanted.\n");
68707+}
68708+#endif
68709+
68710+#ifdef CONFIG_PAX_HOOK_ACL_FLAGS
68711+void (*pax_set_initial_flags_func)(struct linux_binprm *bprm);
68712+EXPORT_SYMBOL(pax_set_initial_flags_func);
68713+#endif
68714+
68715 int suid_dumpable = 0;
68716
68717 static LIST_HEAD(formats);
68718 static DEFINE_RWLOCK(binfmt_lock);
68719
68720+extern int gr_process_kernel_exec_ban(void);
68721+extern int gr_process_suid_exec_ban(const struct linux_binprm *bprm);
68722+
68723 void __register_binfmt(struct linux_binfmt * fmt, int insert)
68724 {
68725 BUG_ON(!fmt);
68726 if (WARN_ON(!fmt->load_binary))
68727 return;
68728 write_lock(&binfmt_lock);
68729- insert ? list_add(&fmt->lh, &formats) :
68730- list_add_tail(&fmt->lh, &formats);
68731+ insert ? pax_list_add((struct list_head *)&fmt->lh, &formats) :
68732+ pax_list_add_tail((struct list_head *)&fmt->lh, &formats);
68733 write_unlock(&binfmt_lock);
68734 }
68735
68736@@ -87,7 +114,7 @@ EXPORT_SYMBOL(__register_binfmt);
68737 void unregister_binfmt(struct linux_binfmt * fmt)
68738 {
68739 write_lock(&binfmt_lock);
68740- list_del(&fmt->lh);
68741+ pax_list_del((struct list_head *)&fmt->lh);
68742 write_unlock(&binfmt_lock);
68743 }
68744
68745@@ -183,18 +210,10 @@ static struct page *get_arg_page(struct linux_binprm *bprm, unsigned long pos,
68746 int write)
68747 {
68748 struct page *page;
68749- int ret;
68750
68751-#ifdef CONFIG_STACK_GROWSUP
68752- if (write) {
68753- ret = expand_downwards(bprm->vma, pos);
68754- if (ret < 0)
68755- return NULL;
68756- }
68757-#endif
68758- ret = get_user_pages(current, bprm->mm, pos,
68759- 1, write, 1, &page, NULL);
68760- if (ret <= 0)
68761+ if (0 > expand_downwards(bprm->vma, pos))
68762+ return NULL;
68763+ if (0 >= get_user_pages(current, bprm->mm, pos, 1, write, 1, &page, NULL))
68764 return NULL;
68765
68766 if (write) {
68767@@ -210,6 +229,17 @@ static struct page *get_arg_page(struct linux_binprm *bprm, unsigned long pos,
68768 if (size <= ARG_MAX)
68769 return page;
68770
68771+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
68772+ // only allow 512KB for argv+env on suid/sgid binaries
68773+ // to prevent easy ASLR exhaustion
68774+ if (((!uid_eq(bprm->cred->euid, current_euid())) ||
68775+ (!gid_eq(bprm->cred->egid, current_egid()))) &&
68776+ (size > (512 * 1024))) {
68777+ put_page(page);
68778+ return NULL;
68779+ }
68780+#endif
68781+
68782 /*
68783 * Limit to 1/4-th the stack size for the argv+env strings.
68784 * This ensures that:
68785@@ -269,6 +299,11 @@ static int __bprm_mm_init(struct linux_binprm *bprm)
68786 vma->vm_end = STACK_TOP_MAX;
68787 vma->vm_start = vma->vm_end - PAGE_SIZE;
68788 vma->vm_flags = VM_SOFTDIRTY | VM_STACK_FLAGS | VM_STACK_INCOMPLETE_SETUP;
68789+
68790+#ifdef CONFIG_PAX_SEGMEXEC
68791+ vma->vm_flags &= ~(VM_EXEC | VM_MAYEXEC);
68792+#endif
68793+
68794 vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
68795 INIT_LIST_HEAD(&vma->anon_vma_chain);
68796
68797@@ -280,6 +315,12 @@ static int __bprm_mm_init(struct linux_binprm *bprm)
68798 arch_bprm_mm_init(mm, vma);
68799 up_write(&mm->mmap_sem);
68800 bprm->p = vma->vm_end - sizeof(void *);
68801+
68802+#ifdef CONFIG_PAX_RANDUSTACK
68803+ if (randomize_va_space)
68804+ bprm->p ^= prandom_u32() & ~PAGE_MASK;
68805+#endif
68806+
68807 return 0;
68808 err:
68809 up_write(&mm->mmap_sem);
68810@@ -396,7 +437,7 @@ struct user_arg_ptr {
68811 } ptr;
68812 };
68813
68814-static const char __user *get_user_arg_ptr(struct user_arg_ptr argv, int nr)
68815+const char __user *get_user_arg_ptr(struct user_arg_ptr argv, int nr)
68816 {
68817 const char __user *native;
68818
68819@@ -405,14 +446,14 @@ static const char __user *get_user_arg_ptr(struct user_arg_ptr argv, int nr)
68820 compat_uptr_t compat;
68821
68822 if (get_user(compat, argv.ptr.compat + nr))
68823- return ERR_PTR(-EFAULT);
68824+ return (const char __force_user *)ERR_PTR(-EFAULT);
68825
68826 return compat_ptr(compat);
68827 }
68828 #endif
68829
68830 if (get_user(native, argv.ptr.native + nr))
68831- return ERR_PTR(-EFAULT);
68832+ return (const char __force_user *)ERR_PTR(-EFAULT);
68833
68834 return native;
68835 }
68836@@ -431,7 +472,7 @@ static int count(struct user_arg_ptr argv, int max)
68837 if (!p)
68838 break;
68839
68840- if (IS_ERR(p))
68841+ if (IS_ERR((const char __force_kernel *)p))
68842 return -EFAULT;
68843
68844 if (i >= max)
68845@@ -466,7 +507,7 @@ static int copy_strings(int argc, struct user_arg_ptr argv,
68846
68847 ret = -EFAULT;
68848 str = get_user_arg_ptr(argv, argc);
68849- if (IS_ERR(str))
68850+ if (IS_ERR((const char __force_kernel *)str))
68851 goto out;
68852
68853 len = strnlen_user(str, MAX_ARG_STRLEN);
68854@@ -548,7 +589,7 @@ int copy_strings_kernel(int argc, const char *const *__argv,
68855 int r;
68856 mm_segment_t oldfs = get_fs();
68857 struct user_arg_ptr argv = {
68858- .ptr.native = (const char __user *const __user *)__argv,
68859+ .ptr.native = (const char __user * const __force_user *)__argv,
68860 };
68861
68862 set_fs(KERNEL_DS);
68863@@ -583,7 +624,8 @@ static int shift_arg_pages(struct vm_area_struct *vma, unsigned long shift)
68864 unsigned long new_end = old_end - shift;
68865 struct mmu_gather tlb;
68866
68867- BUG_ON(new_start > new_end);
68868+ if (new_start >= new_end || new_start < mmap_min_addr)
68869+ return -ENOMEM;
68870
68871 /*
68872 * ensure there are no vmas between where we want to go
68873@@ -592,6 +634,10 @@ static int shift_arg_pages(struct vm_area_struct *vma, unsigned long shift)
68874 if (vma != find_vma(mm, new_start))
68875 return -EFAULT;
68876
68877+#ifdef CONFIG_PAX_SEGMEXEC
68878+ BUG_ON(pax_find_mirror_vma(vma));
68879+#endif
68880+
68881 /*
68882 * cover the whole range: [new_start, old_end)
68883 */
68884@@ -675,10 +721,6 @@ int setup_arg_pages(struct linux_binprm *bprm,
68885 stack_top = arch_align_stack(stack_top);
68886 stack_top = PAGE_ALIGN(stack_top);
68887
68888- if (unlikely(stack_top < mmap_min_addr) ||
68889- unlikely(vma->vm_end - vma->vm_start >= stack_top - mmap_min_addr))
68890- return -ENOMEM;
68891-
68892 stack_shift = vma->vm_end - stack_top;
68893
68894 bprm->p -= stack_shift;
68895@@ -690,8 +732,28 @@ int setup_arg_pages(struct linux_binprm *bprm,
68896 bprm->exec -= stack_shift;
68897
68898 down_write(&mm->mmap_sem);
68899+
68900+ /* Move stack pages down in memory. */
68901+ if (stack_shift) {
68902+ ret = shift_arg_pages(vma, stack_shift);
68903+ if (ret)
68904+ goto out_unlock;
68905+ }
68906+
68907 vm_flags = VM_STACK_FLAGS;
68908
68909+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
68910+ if (mm->pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) {
68911+ vm_flags &= ~VM_EXEC;
68912+
68913+#ifdef CONFIG_PAX_MPROTECT
68914+ if (mm->pax_flags & MF_PAX_MPROTECT)
68915+ vm_flags &= ~VM_MAYEXEC;
68916+#endif
68917+
68918+ }
68919+#endif
68920+
68921 /*
68922 * Adjust stack execute permissions; explicitly enable for
68923 * EXSTACK_ENABLE_X, disable for EXSTACK_DISABLE_X and leave alone
68924@@ -710,13 +772,6 @@ int setup_arg_pages(struct linux_binprm *bprm,
68925 goto out_unlock;
68926 BUG_ON(prev != vma);
68927
68928- /* Move stack pages down in memory. */
68929- if (stack_shift) {
68930- ret = shift_arg_pages(vma, stack_shift);
68931- if (ret)
68932- goto out_unlock;
68933- }
68934-
68935 /* mprotect_fixup is overkill to remove the temporary stack flags */
68936 vma->vm_flags &= ~VM_STACK_INCOMPLETE_SETUP;
68937
68938@@ -740,6 +795,27 @@ int setup_arg_pages(struct linux_binprm *bprm,
68939 #endif
68940 current->mm->start_stack = bprm->p;
68941 ret = expand_stack(vma, stack_base);
68942+
68943+#if !defined(CONFIG_STACK_GROWSUP) && defined(CONFIG_PAX_RANDMMAP)
68944+ if (!ret && (mm->pax_flags & MF_PAX_RANDMMAP) && STACK_TOP <= 0xFFFFFFFFU && STACK_TOP > vma->vm_end) {
68945+ unsigned long size;
68946+ vm_flags_t vm_flags;
68947+
68948+ size = STACK_TOP - vma->vm_end;
68949+ vm_flags = VM_NONE | VM_DONTEXPAND | VM_DONTDUMP;
68950+
68951+ ret = vma->vm_end != mmap_region(NULL, vma->vm_end, size, vm_flags, 0);
68952+
68953+#ifdef CONFIG_X86
68954+ if (!ret) {
68955+ size = PAGE_SIZE + mmap_min_addr + ((mm->delta_mmap ^ mm->delta_stack) & (0xFFUL << PAGE_SHIFT));
68956+ ret = 0 != mmap_region(NULL, 0, PAGE_ALIGN(size), vm_flags, 0);
68957+ }
68958+#endif
68959+
68960+ }
68961+#endif
68962+
68963 if (ret)
68964 ret = -EFAULT;
68965
68966@@ -784,8 +860,10 @@ static struct file *do_open_execat(int fd, struct filename *name, int flags)
68967 if (err)
68968 goto exit;
68969
68970- if (name->name[0] != '\0')
68971+ if (name->name[0] != '\0') {
68972 fsnotify_open(file);
68973+ trace_open_exec(name->name);
68974+ }
68975
68976 out:
68977 return file;
68978@@ -818,7 +896,7 @@ int kernel_read(struct file *file, loff_t offset,
68979 old_fs = get_fs();
68980 set_fs(get_ds());
68981 /* The cast to a user pointer is valid due to the set_fs() */
68982- result = vfs_read(file, (void __user *)addr, count, &pos);
68983+ result = vfs_read(file, (void __force_user *)addr, count, &pos);
68984 set_fs(old_fs);
68985 return result;
68986 }
68987@@ -863,6 +941,7 @@ static int exec_mmap(struct mm_struct *mm)
68988 tsk->mm = mm;
68989 tsk->active_mm = mm;
68990 activate_mm(active_mm, mm);
68991+ populate_stack();
68992 tsk->mm->vmacache_seqnum = 0;
68993 vmacache_flush(tsk);
68994 task_unlock(tsk);
68995@@ -929,10 +1008,14 @@ static int de_thread(struct task_struct *tsk)
68996 if (!thread_group_leader(tsk)) {
68997 struct task_struct *leader = tsk->group_leader;
68998
68999- sig->notify_count = -1; /* for exit_notify() */
69000 for (;;) {
69001 threadgroup_change_begin(tsk);
69002 write_lock_irq(&tasklist_lock);
69003+ /*
69004+ * Do this under tasklist_lock to ensure that
69005+ * exit_notify() can't miss ->group_exit_task
69006+ */
69007+ sig->notify_count = -1;
69008 if (likely(leader->exit_state))
69009 break;
69010 __set_current_state(TASK_KILLABLE);
69011@@ -1261,7 +1344,7 @@ static void check_unsafe_exec(struct linux_binprm *bprm)
69012 }
69013 rcu_read_unlock();
69014
69015- if (p->fs->users > n_fs)
69016+ if (atomic_read(&p->fs->users) > n_fs)
69017 bprm->unsafe |= LSM_UNSAFE_SHARE;
69018 else
69019 p->fs->in_exec = 1;
69020@@ -1462,6 +1545,31 @@ static int exec_binprm(struct linux_binprm *bprm)
69021 return ret;
69022 }
69023
69024+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
69025+static DEFINE_PER_CPU(u64, exec_counter);
69026+static int __init init_exec_counters(void)
69027+{
69028+ unsigned int cpu;
69029+
69030+ for_each_possible_cpu(cpu) {
69031+ per_cpu(exec_counter, cpu) = (u64)cpu;
69032+ }
69033+
69034+ return 0;
69035+}
69036+early_initcall(init_exec_counters);
69037+static inline void increment_exec_counter(void)
69038+{
69039+ BUILD_BUG_ON(NR_CPUS > (1 << 16));
69040+ current->exec_id = this_cpu_add_return(exec_counter, 1 << 16);
69041+}
69042+#else
69043+static inline void increment_exec_counter(void) {}
69044+#endif
69045+
69046+extern void gr_handle_exec_args(struct linux_binprm *bprm,
69047+ struct user_arg_ptr argv);
69048+
69049 /*
69050 * sys_execve() executes a new program.
69051 */
69052@@ -1470,6 +1578,11 @@ static int do_execveat_common(int fd, struct filename *filename,
69053 struct user_arg_ptr envp,
69054 int flags)
69055 {
69056+#ifdef CONFIG_GRKERNSEC
69057+ struct file *old_exec_file;
69058+ struct acl_subject_label *old_acl;
69059+ struct rlimit old_rlim[RLIM_NLIMITS];
69060+#endif
69061 char *pathbuf = NULL;
69062 struct linux_binprm *bprm;
69063 struct file *file;
69064@@ -1479,6 +1592,8 @@ static int do_execveat_common(int fd, struct filename *filename,
69065 if (IS_ERR(filename))
69066 return PTR_ERR(filename);
69067
69068+ gr_learn_resource(current, RLIMIT_NPROC, atomic_read(&current_user()->processes), 1);
69069+
69070 /*
69071 * We move the actual failure in case of RLIMIT_NPROC excess from
69072 * set*uid() to execve() because too many poorly written programs
69073@@ -1516,6 +1631,11 @@ static int do_execveat_common(int fd, struct filename *filename,
69074 if (IS_ERR(file))
69075 goto out_unmark;
69076
69077+ if (gr_ptrace_readexec(file, bprm->unsafe)) {
69078+ retval = -EPERM;
69079+ goto out_unmark;
69080+ }
69081+
69082 sched_exec();
69083
69084 bprm->file = file;
69085@@ -1542,6 +1662,11 @@ static int do_execveat_common(int fd, struct filename *filename,
69086 }
69087 bprm->interp = bprm->filename;
69088
69089+ if (!gr_acl_handle_execve(file->f_path.dentry, file->f_path.mnt)) {
69090+ retval = -EACCES;
69091+ goto out_unmark;
69092+ }
69093+
69094 retval = bprm_mm_init(bprm);
69095 if (retval)
69096 goto out_unmark;
69097@@ -1558,24 +1683,70 @@ static int do_execveat_common(int fd, struct filename *filename,
69098 if (retval < 0)
69099 goto out;
69100
69101+#ifdef CONFIG_GRKERNSEC
69102+ old_acl = current->acl;
69103+ memcpy(old_rlim, current->signal->rlim, sizeof(old_rlim));
69104+ old_exec_file = current->exec_file;
69105+ get_file(file);
69106+ current->exec_file = file;
69107+#endif
69108+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
69109+ /* limit suid stack to 8MB
69110+ * we saved the old limits above and will restore them if this exec fails
69111+ */
69112+ if (((!uid_eq(bprm->cred->euid, current_euid())) || (!gid_eq(bprm->cred->egid, current_egid()))) &&
69113+ (old_rlim[RLIMIT_STACK].rlim_cur > (8 * 1024 * 1024)))
69114+ current->signal->rlim[RLIMIT_STACK].rlim_cur = 8 * 1024 * 1024;
69115+#endif
69116+
69117+ if (gr_process_kernel_exec_ban() || gr_process_suid_exec_ban(bprm)) {
69118+ retval = -EPERM;
69119+ goto out_fail;
69120+ }
69121+
69122+ if (!gr_tpe_allow(file)) {
69123+ retval = -EACCES;
69124+ goto out_fail;
69125+ }
69126+
69127+ if (gr_check_crash_exec(file)) {
69128+ retval = -EACCES;
69129+ goto out_fail;
69130+ }
69131+
69132+ retval = gr_set_proc_label(file->f_path.dentry, file->f_path.mnt,
69133+ bprm->unsafe);
69134+ if (retval < 0)
69135+ goto out_fail;
69136+
69137 retval = copy_strings_kernel(1, &bprm->filename, bprm);
69138 if (retval < 0)
69139- goto out;
69140+ goto out_fail;
69141
69142 bprm->exec = bprm->p;
69143 retval = copy_strings(bprm->envc, envp, bprm);
69144 if (retval < 0)
69145- goto out;
69146+ goto out_fail;
69147
69148 retval = copy_strings(bprm->argc, argv, bprm);
69149 if (retval < 0)
69150- goto out;
69151+ goto out_fail;
69152+
69153+ gr_log_chroot_exec(file->f_path.dentry, file->f_path.mnt);
69154+
69155+ gr_handle_exec_args(bprm, argv);
69156
69157 retval = exec_binprm(bprm);
69158 if (retval < 0)
69159- goto out;
69160+ goto out_fail;
69161+#ifdef CONFIG_GRKERNSEC
69162+ if (old_exec_file)
69163+ fput(old_exec_file);
69164+#endif
69165
69166 /* execve succeeded */
69167+
69168+ increment_exec_counter();
69169 current->fs->in_exec = 0;
69170 current->in_execve = 0;
69171 acct_update_integrals(current);
69172@@ -1587,6 +1758,14 @@ static int do_execveat_common(int fd, struct filename *filename,
69173 put_files_struct(displaced);
69174 return retval;
69175
69176+out_fail:
69177+#ifdef CONFIG_GRKERNSEC
69178+ current->acl = old_acl;
69179+ memcpy(current->signal->rlim, old_rlim, sizeof(old_rlim));
69180+ fput(current->exec_file);
69181+ current->exec_file = old_exec_file;
69182+#endif
69183+
69184 out:
69185 if (bprm->mm) {
69186 acct_arg_size(bprm, 0);
69187@@ -1733,3 +1912,312 @@ COMPAT_SYSCALL_DEFINE5(execveat, int, fd,
69188 argv, envp, flags);
69189 }
69190 #endif
69191+
69192+int pax_check_flags(unsigned long *flags)
69193+{
69194+ int retval = 0;
69195+
69196+#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_SEGMEXEC)
69197+ if (*flags & MF_PAX_SEGMEXEC)
69198+ {
69199+ *flags &= ~MF_PAX_SEGMEXEC;
69200+ retval = -EINVAL;
69201+ }
69202+#endif
69203+
69204+ if ((*flags & MF_PAX_PAGEEXEC)
69205+
69206+#ifdef CONFIG_PAX_PAGEEXEC
69207+ && (*flags & MF_PAX_SEGMEXEC)
69208+#endif
69209+
69210+ )
69211+ {
69212+ *flags &= ~MF_PAX_PAGEEXEC;
69213+ retval = -EINVAL;
69214+ }
69215+
69216+ if ((*flags & MF_PAX_MPROTECT)
69217+
69218+#ifdef CONFIG_PAX_MPROTECT
69219+ && !(*flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC))
69220+#endif
69221+
69222+ )
69223+ {
69224+ *flags &= ~MF_PAX_MPROTECT;
69225+ retval = -EINVAL;
69226+ }
69227+
69228+ if ((*flags & MF_PAX_EMUTRAMP)
69229+
69230+#ifdef CONFIG_PAX_EMUTRAMP
69231+ && !(*flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC))
69232+#endif
69233+
69234+ )
69235+ {
69236+ *flags &= ~MF_PAX_EMUTRAMP;
69237+ retval = -EINVAL;
69238+ }
69239+
69240+ return retval;
69241+}
69242+
69243+EXPORT_SYMBOL(pax_check_flags);
69244+
69245+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
69246+char *pax_get_path(const struct path *path, char *buf, int buflen)
69247+{
69248+ char *pathname = d_path(path, buf, buflen);
69249+
69250+ if (IS_ERR(pathname))
69251+ goto toolong;
69252+
69253+ pathname = mangle_path(buf, pathname, "\t\n\\");
69254+ if (!pathname)
69255+ goto toolong;
69256+
69257+ *pathname = 0;
69258+ return buf;
69259+
69260+toolong:
69261+ return "<path too long>";
69262+}
69263+EXPORT_SYMBOL(pax_get_path);
69264+
69265+void pax_report_fault(struct pt_regs *regs, void *pc, void *sp)
69266+{
69267+ struct task_struct *tsk = current;
69268+ struct mm_struct *mm = current->mm;
69269+ char *buffer_exec = (char *)__get_free_page(GFP_KERNEL);
69270+ char *buffer_fault = (char *)__get_free_page(GFP_KERNEL);
69271+ char *path_exec = NULL;
69272+ char *path_fault = NULL;
69273+ unsigned long start = 0UL, end = 0UL, offset = 0UL;
69274+ siginfo_t info = { };
69275+
69276+ if (buffer_exec && buffer_fault) {
69277+ struct vm_area_struct *vma, *vma_exec = NULL, *vma_fault = NULL;
69278+
69279+ down_read(&mm->mmap_sem);
69280+ vma = mm->mmap;
69281+ while (vma && (!vma_exec || !vma_fault)) {
69282+ if (vma->vm_file && mm->exe_file == vma->vm_file && (vma->vm_flags & VM_EXEC))
69283+ vma_exec = vma;
69284+ if (vma->vm_start <= (unsigned long)pc && (unsigned long)pc < vma->vm_end)
69285+ vma_fault = vma;
69286+ vma = vma->vm_next;
69287+ }
69288+ if (vma_exec)
69289+ path_exec = pax_get_path(&vma_exec->vm_file->f_path, buffer_exec, PAGE_SIZE);
69290+ if (vma_fault) {
69291+ start = vma_fault->vm_start;
69292+ end = vma_fault->vm_end;
69293+ offset = vma_fault->vm_pgoff << PAGE_SHIFT;
69294+ if (vma_fault->vm_file)
69295+ path_fault = pax_get_path(&vma_fault->vm_file->f_path, buffer_fault, PAGE_SIZE);
69296+ else if ((unsigned long)pc >= mm->start_brk && (unsigned long)pc < mm->brk)
69297+ path_fault = "<heap>";
69298+ else if (vma_fault->vm_flags & (VM_GROWSDOWN | VM_GROWSUP))
69299+ path_fault = "<stack>";
69300+ else
69301+ path_fault = "<anonymous mapping>";
69302+ }
69303+ up_read(&mm->mmap_sem);
69304+ }
69305+ if (tsk->signal->curr_ip)
69306+ printk(KERN_ERR "PAX: From %pI4: execution attempt in: %s, %08lx-%08lx %08lx\n", &tsk->signal->curr_ip, path_fault, start, end, offset);
69307+ else
69308+ printk(KERN_ERR "PAX: execution attempt in: %s, %08lx-%08lx %08lx\n", path_fault, start, end, offset);
69309+ printk(KERN_ERR "PAX: terminating task: %s(%s):%d, uid/euid: %u/%u, PC: %p, SP: %p\n", path_exec, tsk->comm, task_pid_nr(tsk),
69310+ from_kuid_munged(&init_user_ns, task_uid(tsk)), from_kuid_munged(&init_user_ns, task_euid(tsk)), pc, sp);
69311+ free_page((unsigned long)buffer_exec);
69312+ free_page((unsigned long)buffer_fault);
69313+ pax_report_insns(regs, pc, sp);
69314+ info.si_signo = SIGKILL;
69315+ info.si_errno = 0;
69316+ info.si_code = SI_KERNEL;
69317+ info.si_pid = 0;
69318+ info.si_uid = 0;
69319+ do_coredump(&info);
69320+}
69321+#endif
69322+
69323+#ifdef CONFIG_PAX_REFCOUNT
69324+void pax_report_refcount_overflow(struct pt_regs *regs)
69325+{
69326+ if (current->signal->curr_ip)
69327+ printk(KERN_EMERG "PAX: From %pI4: refcount overflow detected in: %s:%d, uid/euid: %u/%u\n",
69328+ &current->signal->curr_ip, current->comm, task_pid_nr(current),
69329+ from_kuid_munged(&init_user_ns, current_uid()), from_kuid_munged(&init_user_ns, current_euid()));
69330+ else
69331+ printk(KERN_EMERG "PAX: refcount overflow detected in: %s:%d, uid/euid: %u/%u\n", current->comm, task_pid_nr(current),
69332+ from_kuid_munged(&init_user_ns, current_uid()), from_kuid_munged(&init_user_ns, current_euid()));
69333+ print_symbol(KERN_EMERG "PAX: refcount overflow occured at: %s\n", instruction_pointer(regs));
69334+ preempt_disable();
69335+ show_regs(regs);
69336+ preempt_enable();
69337+ force_sig_info(SIGKILL, SEND_SIG_FORCED, current);
69338+}
69339+#endif
69340+
69341+#ifdef CONFIG_PAX_USERCOPY
69342+/* 0: not at all, 1: fully, 2: fully inside frame, -1: partially (implies an error) */
69343+static noinline int check_stack_object(const void *obj, unsigned long len)
69344+{
69345+ const void * const stack = task_stack_page(current);
69346+ const void * const stackend = stack + THREAD_SIZE;
69347+
69348+#if defined(CONFIG_FRAME_POINTER) && defined(CONFIG_X86)
69349+ const void *frame = NULL;
69350+ const void *oldframe;
69351+#endif
69352+
69353+ if (obj + len < obj)
69354+ return -1;
69355+
69356+ if (obj + len <= stack || stackend <= obj)
69357+ return 0;
69358+
69359+ if (obj < stack || stackend < obj + len)
69360+ return -1;
69361+
69362+#if defined(CONFIG_FRAME_POINTER) && defined(CONFIG_X86)
69363+ oldframe = __builtin_frame_address(1);
69364+ if (oldframe)
69365+ frame = __builtin_frame_address(2);
69366+ /*
69367+ low ----------------------------------------------> high
69368+ [saved bp][saved ip][args][local vars][saved bp][saved ip]
69369+ ^----------------^
69370+ allow copies only within here
69371+ */
69372+ while (stack <= frame && frame < stackend) {
69373+ /* if obj + len extends past the last frame, this
69374+ check won't pass and the next frame will be 0,
69375+ causing us to bail out and correctly report
69376+ the copy as invalid
69377+ */
69378+ if (obj + len <= frame)
69379+ return obj >= oldframe + 2 * sizeof(void *) ? 2 : -1;
69380+ oldframe = frame;
69381+ frame = *(const void * const *)frame;
69382+ }
69383+ return -1;
69384+#else
69385+ return 1;
69386+#endif
69387+}
69388+
69389+static __noreturn void pax_report_usercopy(const void *ptr, unsigned long len, bool to_user, const char *type)
69390+{
69391+ if (current->signal->curr_ip)
69392+ printk(KERN_EMERG "PAX: From %pI4: kernel memory %s attempt detected %s %p (%s) (%lu bytes)\n",
69393+ &current->signal->curr_ip, to_user ? "leak" : "overwrite", to_user ? "from" : "to", ptr, type ? : "unknown", len);
69394+ else
69395+ printk(KERN_EMERG "PAX: kernel memory %s attempt detected %s %p (%s) (%lu bytes)\n",
69396+ to_user ? "leak" : "overwrite", to_user ? "from" : "to", ptr, type ? : "unknown", len);
69397+ dump_stack();
69398+ gr_handle_kernel_exploit();
69399+ do_group_exit(SIGKILL);
69400+}
69401+#endif
69402+
69403+#ifdef CONFIG_PAX_USERCOPY
69404+
69405+static inline bool check_kernel_text_object(unsigned long low, unsigned long high)
69406+{
69407+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
69408+ unsigned long textlow = ktla_ktva((unsigned long)_stext);
69409+#ifdef CONFIG_MODULES
69410+ unsigned long texthigh = (unsigned long)MODULES_EXEC_VADDR;
69411+#else
69412+ unsigned long texthigh = ktla_ktva((unsigned long)_etext);
69413+#endif
69414+
69415+#else
69416+ unsigned long textlow = (unsigned long)_stext;
69417+ unsigned long texthigh = (unsigned long)_etext;
69418+
69419+#ifdef CONFIG_X86_64
69420+ /* check against linear mapping as well */
69421+ if (high > (unsigned long)__va(__pa(textlow)) &&
69422+ low < (unsigned long)__va(__pa(texthigh)))
69423+ return true;
69424+#endif
69425+
69426+#endif
69427+
69428+ if (high <= textlow || low >= texthigh)
69429+ return false;
69430+ else
69431+ return true;
69432+}
69433+#endif
69434+
69435+void __check_object_size(const void *ptr, unsigned long n, bool to_user, bool const_size)
69436+{
69437+#ifdef CONFIG_PAX_USERCOPY
69438+ const char *type;
69439+#endif
69440+
69441+#if !defined(CONFIG_STACK_GROWSUP) && !defined(CONFIG_X86_64)
69442+ unsigned long stackstart = (unsigned long)task_stack_page(current);
69443+ unsigned long currentsp = (unsigned long)&stackstart;
69444+ if (unlikely((currentsp < stackstart + 512 ||
69445+ currentsp >= stackstart + THREAD_SIZE) && !in_interrupt()))
69446+ BUG();
69447+#endif
69448+
69449+#ifndef CONFIG_PAX_USERCOPY_DEBUG
69450+ if (const_size)
69451+ return;
69452+#endif
69453+
69454+#ifdef CONFIG_PAX_USERCOPY
69455+ if (!n)
69456+ return;
69457+
69458+ type = check_heap_object(ptr, n);
69459+ if (!type) {
69460+ int ret = check_stack_object(ptr, n);
69461+ if (ret == 1 || ret == 2)
69462+ return;
69463+ if (ret == 0) {
69464+ if (check_kernel_text_object((unsigned long)ptr, (unsigned long)ptr + n))
69465+ type = "<kernel text>";
69466+ else
69467+ return;
69468+ } else
69469+ type = "<process stack>";
69470+ }
69471+
69472+ pax_report_usercopy(ptr, n, to_user, type);
69473+#endif
69474+
69475+}
69476+EXPORT_SYMBOL(__check_object_size);
69477+
69478+#ifdef CONFIG_PAX_MEMORY_STACKLEAK
69479+void __used pax_track_stack(void)
69480+{
69481+ unsigned long sp = (unsigned long)&sp;
69482+ if (sp < current_thread_info()->lowest_stack &&
69483+ sp >= (unsigned long)task_stack_page(current) + 2 * sizeof(unsigned long))
69484+ current_thread_info()->lowest_stack = sp;
69485+ if (unlikely((sp & ~(THREAD_SIZE - 1)) < (THREAD_SIZE/16)))
69486+ BUG();
69487+}
69488+EXPORT_SYMBOL(pax_track_stack);
69489+#endif
69490+
69491+#ifdef CONFIG_PAX_SIZE_OVERFLOW
69492+void __nocapture(1, 3, 4) __used report_size_overflow(const char *file, unsigned int line, const char *func, const char *ssa_name)
69493+{
69494+ printk(KERN_EMERG "PAX: size overflow detected in function %s %s:%u %s", func, file, line, ssa_name);
69495+ dump_stack();
69496+ do_group_exit(SIGKILL);
69497+}
69498+EXPORT_SYMBOL(report_size_overflow);
69499+#endif
69500diff --git a/fs/ext2/balloc.c b/fs/ext2/balloc.c
69501index 9f9992b..8b59411 100644
69502--- a/fs/ext2/balloc.c
69503+++ b/fs/ext2/balloc.c
69504@@ -1184,10 +1184,10 @@ static int ext2_has_free_blocks(struct ext2_sb_info *sbi)
69505
69506 free_blocks = percpu_counter_read_positive(&sbi->s_freeblocks_counter);
69507 root_blocks = le32_to_cpu(sbi->s_es->s_r_blocks_count);
69508- if (free_blocks < root_blocks + 1 && !capable(CAP_SYS_RESOURCE) &&
69509+ if (free_blocks < root_blocks + 1 &&
69510 !uid_eq(sbi->s_resuid, current_fsuid()) &&
69511 (gid_eq(sbi->s_resgid, GLOBAL_ROOT_GID) ||
69512- !in_group_p (sbi->s_resgid))) {
69513+ !in_group_p (sbi->s_resgid)) && !capable_nolog(CAP_SYS_RESOURCE)) {
69514 return 0;
69515 }
69516 return 1;
69517diff --git a/fs/ext2/super.c b/fs/ext2/super.c
69518index d0e746e..82e06f0 100644
69519--- a/fs/ext2/super.c
69520+++ b/fs/ext2/super.c
69521@@ -267,10 +267,8 @@ static int ext2_show_options(struct seq_file *seq, struct dentry *root)
69522 #ifdef CONFIG_EXT2_FS_XATTR
69523 if (test_opt(sb, XATTR_USER))
69524 seq_puts(seq, ",user_xattr");
69525- if (!test_opt(sb, XATTR_USER) &&
69526- (def_mount_opts & EXT2_DEFM_XATTR_USER)) {
69527+ if (!test_opt(sb, XATTR_USER))
69528 seq_puts(seq, ",nouser_xattr");
69529- }
69530 #endif
69531
69532 #ifdef CONFIG_EXT2_FS_POSIX_ACL
69533@@ -856,8 +854,8 @@ static int ext2_fill_super(struct super_block *sb, void *data, int silent)
69534 if (def_mount_opts & EXT2_DEFM_UID16)
69535 set_opt(sbi->s_mount_opt, NO_UID32);
69536 #ifdef CONFIG_EXT2_FS_XATTR
69537- if (def_mount_opts & EXT2_DEFM_XATTR_USER)
69538- set_opt(sbi->s_mount_opt, XATTR_USER);
69539+ /* always enable user xattrs */
69540+ set_opt(sbi->s_mount_opt, XATTR_USER);
69541 #endif
69542 #ifdef CONFIG_EXT2_FS_POSIX_ACL
69543 if (def_mount_opts & EXT2_DEFM_ACL)
69544diff --git a/fs/ext2/xattr.c b/fs/ext2/xattr.c
69545index 9142614..97484fa 100644
69546--- a/fs/ext2/xattr.c
69547+++ b/fs/ext2/xattr.c
69548@@ -247,7 +247,7 @@ ext2_xattr_list(struct dentry *dentry, char *buffer, size_t buffer_size)
69549 struct buffer_head *bh = NULL;
69550 struct ext2_xattr_entry *entry;
69551 char *end;
69552- size_t rest = buffer_size;
69553+ size_t rest = buffer_size, total_size = 0;
69554 int error;
69555
69556 ea_idebug(inode, "buffer=%p, buffer_size=%ld",
69557@@ -305,9 +305,10 @@ bad_block: ext2_error(inode->i_sb, "ext2_xattr_list",
69558 buffer += size;
69559 }
69560 rest -= size;
69561+ total_size += size;
69562 }
69563 }
69564- error = buffer_size - rest; /* total size */
69565+ error = total_size;
69566
69567 cleanup:
69568 brelse(bh);
69569diff --git a/fs/ext3/balloc.c b/fs/ext3/balloc.c
69570index 158b5d4..2432610 100644
69571--- a/fs/ext3/balloc.c
69572+++ b/fs/ext3/balloc.c
69573@@ -1438,10 +1438,10 @@ static int ext3_has_free_blocks(struct ext3_sb_info *sbi, int use_reservation)
69574
69575 free_blocks = percpu_counter_read_positive(&sbi->s_freeblocks_counter);
69576 root_blocks = le32_to_cpu(sbi->s_es->s_r_blocks_count);
69577- if (free_blocks < root_blocks + 1 && !capable(CAP_SYS_RESOURCE) &&
69578+ if (free_blocks < root_blocks + 1 &&
69579 !use_reservation && !uid_eq(sbi->s_resuid, current_fsuid()) &&
69580 (gid_eq(sbi->s_resgid, GLOBAL_ROOT_GID) ||
69581- !in_group_p (sbi->s_resgid))) {
69582+ !in_group_p (sbi->s_resgid)) && !capable_nolog(CAP_SYS_RESOURCE)) {
69583 return 0;
69584 }
69585 return 1;
69586diff --git a/fs/ext3/super.c b/fs/ext3/super.c
69587index d4dbf3c..906a6fb 100644
69588--- a/fs/ext3/super.c
69589+++ b/fs/ext3/super.c
69590@@ -655,10 +655,8 @@ static int ext3_show_options(struct seq_file *seq, struct dentry *root)
69591 #ifdef CONFIG_EXT3_FS_XATTR
69592 if (test_opt(sb, XATTR_USER))
69593 seq_puts(seq, ",user_xattr");
69594- if (!test_opt(sb, XATTR_USER) &&
69595- (def_mount_opts & EXT3_DEFM_XATTR_USER)) {
69596+ if (!test_opt(sb, XATTR_USER))
69597 seq_puts(seq, ",nouser_xattr");
69598- }
69599 #endif
69600 #ifdef CONFIG_EXT3_FS_POSIX_ACL
69601 if (test_opt(sb, POSIX_ACL))
69602@@ -1760,8 +1758,8 @@ static int ext3_fill_super (struct super_block *sb, void *data, int silent)
69603 if (def_mount_opts & EXT3_DEFM_UID16)
69604 set_opt(sbi->s_mount_opt, NO_UID32);
69605 #ifdef CONFIG_EXT3_FS_XATTR
69606- if (def_mount_opts & EXT3_DEFM_XATTR_USER)
69607- set_opt(sbi->s_mount_opt, XATTR_USER);
69608+ /* always enable user xattrs */
69609+ set_opt(sbi->s_mount_opt, XATTR_USER);
69610 #endif
69611 #ifdef CONFIG_EXT3_FS_POSIX_ACL
69612 if (def_mount_opts & EXT3_DEFM_ACL)
69613diff --git a/fs/ext3/xattr.c b/fs/ext3/xattr.c
69614index c6874be..f8a6ae8 100644
69615--- a/fs/ext3/xattr.c
69616+++ b/fs/ext3/xattr.c
69617@@ -330,7 +330,7 @@ static int
69618 ext3_xattr_list_entries(struct dentry *dentry, struct ext3_xattr_entry *entry,
69619 char *buffer, size_t buffer_size)
69620 {
69621- size_t rest = buffer_size;
69622+ size_t rest = buffer_size, total_size = 0;
69623
69624 for (; !IS_LAST_ENTRY(entry); entry = EXT3_XATTR_NEXT(entry)) {
69625 const struct xattr_handler *handler =
69626@@ -347,9 +347,10 @@ ext3_xattr_list_entries(struct dentry *dentry, struct ext3_xattr_entry *entry,
69627 buffer += size;
69628 }
69629 rest -= size;
69630+ total_size += size;
69631 }
69632 }
69633- return buffer_size - rest;
69634+ return total_size;
69635 }
69636
69637 static int
69638diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c
69639index 83a6f49..d4e4d03 100644
69640--- a/fs/ext4/balloc.c
69641+++ b/fs/ext4/balloc.c
69642@@ -557,8 +557,8 @@ static int ext4_has_free_clusters(struct ext4_sb_info *sbi,
69643 /* Hm, nope. Are (enough) root reserved clusters available? */
69644 if (uid_eq(sbi->s_resuid, current_fsuid()) ||
69645 (!gid_eq(sbi->s_resgid, GLOBAL_ROOT_GID) && in_group_p(sbi->s_resgid)) ||
69646- capable(CAP_SYS_RESOURCE) ||
69647- (flags & EXT4_MB_USE_ROOT_BLOCKS)) {
69648+ (flags & EXT4_MB_USE_ROOT_BLOCKS) ||
69649+ capable_nolog(CAP_SYS_RESOURCE)) {
69650
69651 if (free_clusters >= (nclusters + dirty_clusters +
69652 resv_clusters))
69653diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
69654index f63c3d5..3c1a033 100644
69655--- a/fs/ext4/ext4.h
69656+++ b/fs/ext4/ext4.h
69657@@ -1287,19 +1287,19 @@ struct ext4_sb_info {
69658 unsigned long s_mb_last_start;
69659
69660 /* stats for buddy allocator */
69661- atomic_t s_bal_reqs; /* number of reqs with len > 1 */
69662- atomic_t s_bal_success; /* we found long enough chunks */
69663- atomic_t s_bal_allocated; /* in blocks */
69664- atomic_t s_bal_ex_scanned; /* total extents scanned */
69665- atomic_t s_bal_goals; /* goal hits */
69666- atomic_t s_bal_breaks; /* too long searches */
69667- atomic_t s_bal_2orders; /* 2^order hits */
69668+ atomic_unchecked_t s_bal_reqs; /* number of reqs with len > 1 */
69669+ atomic_unchecked_t s_bal_success; /* we found long enough chunks */
69670+ atomic_unchecked_t s_bal_allocated; /* in blocks */
69671+ atomic_unchecked_t s_bal_ex_scanned; /* total extents scanned */
69672+ atomic_unchecked_t s_bal_goals; /* goal hits */
69673+ atomic_unchecked_t s_bal_breaks; /* too long searches */
69674+ atomic_unchecked_t s_bal_2orders; /* 2^order hits */
69675 spinlock_t s_bal_lock;
69676 unsigned long s_mb_buddies_generated;
69677 unsigned long long s_mb_generation_time;
69678- atomic_t s_mb_lost_chunks;
69679- atomic_t s_mb_preallocated;
69680- atomic_t s_mb_discarded;
69681+ atomic_unchecked_t s_mb_lost_chunks;
69682+ atomic_unchecked_t s_mb_preallocated;
69683+ atomic_unchecked_t s_mb_discarded;
69684 atomic_t s_lock_busy;
69685
69686 /* locality groups */
69687diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
69688index 8d1e602..abf497b 100644
69689--- a/fs/ext4/mballoc.c
69690+++ b/fs/ext4/mballoc.c
69691@@ -1901,7 +1901,7 @@ void ext4_mb_simple_scan_group(struct ext4_allocation_context *ac,
69692 BUG_ON(ac->ac_b_ex.fe_len != ac->ac_g_ex.fe_len);
69693
69694 if (EXT4_SB(sb)->s_mb_stats)
69695- atomic_inc(&EXT4_SB(sb)->s_bal_2orders);
69696+ atomic_inc_unchecked(&EXT4_SB(sb)->s_bal_2orders);
69697
69698 break;
69699 }
69700@@ -2211,7 +2211,7 @@ repeat:
69701 ac->ac_status = AC_STATUS_CONTINUE;
69702 ac->ac_flags |= EXT4_MB_HINT_FIRST;
69703 cr = 3;
69704- atomic_inc(&sbi->s_mb_lost_chunks);
69705+ atomic_inc_unchecked(&sbi->s_mb_lost_chunks);
69706 goto repeat;
69707 }
69708 }
69709@@ -2716,25 +2716,25 @@ int ext4_mb_release(struct super_block *sb)
69710 if (sbi->s_mb_stats) {
69711 ext4_msg(sb, KERN_INFO,
69712 "mballoc: %u blocks %u reqs (%u success)",
69713- atomic_read(&sbi->s_bal_allocated),
69714- atomic_read(&sbi->s_bal_reqs),
69715- atomic_read(&sbi->s_bal_success));
69716+ atomic_read_unchecked(&sbi->s_bal_allocated),
69717+ atomic_read_unchecked(&sbi->s_bal_reqs),
69718+ atomic_read_unchecked(&sbi->s_bal_success));
69719 ext4_msg(sb, KERN_INFO,
69720 "mballoc: %u extents scanned, %u goal hits, "
69721 "%u 2^N hits, %u breaks, %u lost",
69722- atomic_read(&sbi->s_bal_ex_scanned),
69723- atomic_read(&sbi->s_bal_goals),
69724- atomic_read(&sbi->s_bal_2orders),
69725- atomic_read(&sbi->s_bal_breaks),
69726- atomic_read(&sbi->s_mb_lost_chunks));
69727+ atomic_read_unchecked(&sbi->s_bal_ex_scanned),
69728+ atomic_read_unchecked(&sbi->s_bal_goals),
69729+ atomic_read_unchecked(&sbi->s_bal_2orders),
69730+ atomic_read_unchecked(&sbi->s_bal_breaks),
69731+ atomic_read_unchecked(&sbi->s_mb_lost_chunks));
69732 ext4_msg(sb, KERN_INFO,
69733 "mballoc: %lu generated and it took %Lu",
69734 sbi->s_mb_buddies_generated,
69735 sbi->s_mb_generation_time);
69736 ext4_msg(sb, KERN_INFO,
69737 "mballoc: %u preallocated, %u discarded",
69738- atomic_read(&sbi->s_mb_preallocated),
69739- atomic_read(&sbi->s_mb_discarded));
69740+ atomic_read_unchecked(&sbi->s_mb_preallocated),
69741+ atomic_read_unchecked(&sbi->s_mb_discarded));
69742 }
69743
69744 free_percpu(sbi->s_locality_groups);
69745@@ -3190,16 +3190,16 @@ static void ext4_mb_collect_stats(struct ext4_allocation_context *ac)
69746 struct ext4_sb_info *sbi = EXT4_SB(ac->ac_sb);
69747
69748 if (sbi->s_mb_stats && ac->ac_g_ex.fe_len > 1) {
69749- atomic_inc(&sbi->s_bal_reqs);
69750- atomic_add(ac->ac_b_ex.fe_len, &sbi->s_bal_allocated);
69751+ atomic_inc_unchecked(&sbi->s_bal_reqs);
69752+ atomic_add_unchecked(ac->ac_b_ex.fe_len, &sbi->s_bal_allocated);
69753 if (ac->ac_b_ex.fe_len >= ac->ac_o_ex.fe_len)
69754- atomic_inc(&sbi->s_bal_success);
69755- atomic_add(ac->ac_found, &sbi->s_bal_ex_scanned);
69756+ atomic_inc_unchecked(&sbi->s_bal_success);
69757+ atomic_add_unchecked(ac->ac_found, &sbi->s_bal_ex_scanned);
69758 if (ac->ac_g_ex.fe_start == ac->ac_b_ex.fe_start &&
69759 ac->ac_g_ex.fe_group == ac->ac_b_ex.fe_group)
69760- atomic_inc(&sbi->s_bal_goals);
69761+ atomic_inc_unchecked(&sbi->s_bal_goals);
69762 if (ac->ac_found > sbi->s_mb_max_to_scan)
69763- atomic_inc(&sbi->s_bal_breaks);
69764+ atomic_inc_unchecked(&sbi->s_bal_breaks);
69765 }
69766
69767 if (ac->ac_op == EXT4_MB_HISTORY_ALLOC)
69768@@ -3626,7 +3626,7 @@ ext4_mb_new_inode_pa(struct ext4_allocation_context *ac)
69769 trace_ext4_mb_new_inode_pa(ac, pa);
69770
69771 ext4_mb_use_inode_pa(ac, pa);
69772- atomic_add(pa->pa_free, &sbi->s_mb_preallocated);
69773+ atomic_add_unchecked(pa->pa_free, &sbi->s_mb_preallocated);
69774
69775 ei = EXT4_I(ac->ac_inode);
69776 grp = ext4_get_group_info(sb, ac->ac_b_ex.fe_group);
69777@@ -3686,7 +3686,7 @@ ext4_mb_new_group_pa(struct ext4_allocation_context *ac)
69778 trace_ext4_mb_new_group_pa(ac, pa);
69779
69780 ext4_mb_use_group_pa(ac, pa);
69781- atomic_add(pa->pa_free, &EXT4_SB(sb)->s_mb_preallocated);
69782+ atomic_add_unchecked(pa->pa_free, &EXT4_SB(sb)->s_mb_preallocated);
69783
69784 grp = ext4_get_group_info(sb, ac->ac_b_ex.fe_group);
69785 lg = ac->ac_lg;
69786@@ -3775,7 +3775,7 @@ ext4_mb_release_inode_pa(struct ext4_buddy *e4b, struct buffer_head *bitmap_bh,
69787 * from the bitmap and continue.
69788 */
69789 }
69790- atomic_add(free, &sbi->s_mb_discarded);
69791+ atomic_add_unchecked(free, &sbi->s_mb_discarded);
69792
69793 return err;
69794 }
69795@@ -3793,7 +3793,7 @@ ext4_mb_release_group_pa(struct ext4_buddy *e4b,
69796 ext4_get_group_no_and_offset(sb, pa->pa_pstart, &group, &bit);
69797 BUG_ON(group != e4b->bd_group && pa->pa_len != 0);
69798 mb_free_blocks(pa->pa_inode, e4b, bit, pa->pa_len);
69799- atomic_add(pa->pa_len, &EXT4_SB(sb)->s_mb_discarded);
69800+ atomic_add_unchecked(pa->pa_len, &EXT4_SB(sb)->s_mb_discarded);
69801 trace_ext4_mballoc_discard(sb, NULL, group, bit, pa->pa_len);
69802
69803 return 0;
69804diff --git a/fs/ext4/mmp.c b/fs/ext4/mmp.c
69805index 8313ca3..8a37d08 100644
69806--- a/fs/ext4/mmp.c
69807+++ b/fs/ext4/mmp.c
69808@@ -111,7 +111,7 @@ static int read_mmp_block(struct super_block *sb, struct buffer_head **bh,
69809 void __dump_mmp_msg(struct super_block *sb, struct mmp_struct *mmp,
69810 const char *function, unsigned int line, const char *msg)
69811 {
69812- __ext4_warning(sb, function, line, msg);
69813+ __ext4_warning(sb, function, line, "%s", msg);
69814 __ext4_warning(sb, function, line,
69815 "MMP failure info: last update time: %llu, last update "
69816 "node: %s, last update device: %s\n",
69817diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c
69818index 8a8ec62..1b02de5 100644
69819--- a/fs/ext4/resize.c
69820+++ b/fs/ext4/resize.c
69821@@ -413,7 +413,7 @@ static int set_flexbg_block_bitmap(struct super_block *sb, handle_t *handle,
69822
69823 ext4_debug("mark blocks [%llu/%u] used\n", block, count);
69824 for (count2 = count; count > 0; count -= count2, block += count2) {
69825- ext4_fsblk_t start;
69826+ ext4_fsblk_t start, diff;
69827 struct buffer_head *bh;
69828 ext4_group_t group;
69829 int err;
69830@@ -422,10 +422,6 @@ static int set_flexbg_block_bitmap(struct super_block *sb, handle_t *handle,
69831 start = ext4_group_first_block_no(sb, group);
69832 group -= flex_gd->groups[0].group;
69833
69834- count2 = EXT4_BLOCKS_PER_GROUP(sb) - (block - start);
69835- if (count2 > count)
69836- count2 = count;
69837-
69838 if (flex_gd->bg_flags[group] & EXT4_BG_BLOCK_UNINIT) {
69839 BUG_ON(flex_gd->count > 1);
69840 continue;
69841@@ -443,9 +439,15 @@ static int set_flexbg_block_bitmap(struct super_block *sb, handle_t *handle,
69842 err = ext4_journal_get_write_access(handle, bh);
69843 if (err)
69844 return err;
69845+
69846+ diff = block - start;
69847+ count2 = EXT4_BLOCKS_PER_GROUP(sb) - diff;
69848+ if (count2 > count)
69849+ count2 = count;
69850+
69851 ext4_debug("mark block bitmap %#04llx (+%llu/%u)\n", block,
69852- block - start, count2);
69853- ext4_set_bits(bh->b_data, block - start, count2);
69854+ diff, count2);
69855+ ext4_set_bits(bh->b_data, diff, count2);
69856
69857 err = ext4_handle_dirty_metadata(handle, NULL, bh);
69858 if (unlikely(err))
69859diff --git a/fs/ext4/super.c b/fs/ext4/super.c
69860index e061e66..87bc092 100644
69861--- a/fs/ext4/super.c
69862+++ b/fs/ext4/super.c
69863@@ -1243,7 +1243,7 @@ static ext4_fsblk_t get_sb_block(void **data)
69864 }
69865
69866 #define DEFAULT_JOURNAL_IOPRIO (IOPRIO_PRIO_VALUE(IOPRIO_CLASS_BE, 3))
69867-static char deprecated_msg[] = "Mount option \"%s\" will be removed by %s\n"
69868+static const char deprecated_msg[] = "Mount option \"%s\" will be removed by %s\n"
69869 "Contact linux-ext4@vger.kernel.org if you think we should keep it.\n";
69870
69871 #ifdef CONFIG_QUOTA
69872@@ -2443,7 +2443,7 @@ struct ext4_attr {
69873 int offset;
69874 int deprecated_val;
69875 } u;
69876-};
69877+} __do_const;
69878
69879 static int parse_strtoull(const char *buf,
69880 unsigned long long max, unsigned long long *value)
69881diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c
69882index 1e09fc7..0400dd4 100644
69883--- a/fs/ext4/xattr.c
69884+++ b/fs/ext4/xattr.c
69885@@ -399,7 +399,7 @@ static int
69886 ext4_xattr_list_entries(struct dentry *dentry, struct ext4_xattr_entry *entry,
69887 char *buffer, size_t buffer_size)
69888 {
69889- size_t rest = buffer_size;
69890+ size_t rest = buffer_size, total_size = 0;
69891
69892 for (; !IS_LAST_ENTRY(entry); entry = EXT4_XATTR_NEXT(entry)) {
69893 const struct xattr_handler *handler =
69894@@ -416,9 +416,10 @@ ext4_xattr_list_entries(struct dentry *dentry, struct ext4_xattr_entry *entry,
69895 buffer += size;
69896 }
69897 rest -= size;
69898+ total_size += size;
69899 }
69900 }
69901- return buffer_size - rest;
69902+ return total_size;
69903 }
69904
69905 static int
69906diff --git a/fs/fcntl.c b/fs/fcntl.c
69907index ee85cd4..9dd0d20 100644
69908--- a/fs/fcntl.c
69909+++ b/fs/fcntl.c
69910@@ -102,6 +102,10 @@ void __f_setown(struct file *filp, struct pid *pid, enum pid_type type,
69911 int force)
69912 {
69913 security_file_set_fowner(filp);
69914+ if (gr_handle_chroot_fowner(pid, type))
69915+ return;
69916+ if (gr_check_protected_task_fowner(pid, type))
69917+ return;
69918 f_modown(filp, pid, type, force);
69919 }
69920 EXPORT_SYMBOL(__f_setown);
69921diff --git a/fs/fhandle.c b/fs/fhandle.c
69922index d59712d..2281df9 100644
69923--- a/fs/fhandle.c
69924+++ b/fs/fhandle.c
69925@@ -8,6 +8,7 @@
69926 #include <linux/fs_struct.h>
69927 #include <linux/fsnotify.h>
69928 #include <linux/personality.h>
69929+#include <linux/grsecurity.h>
69930 #include <asm/uaccess.h>
69931 #include "internal.h"
69932 #include "mount.h"
69933@@ -67,8 +68,7 @@ static long do_sys_name_to_handle(struct path *path,
69934 } else
69935 retval = 0;
69936 /* copy the mount id */
69937- if (copy_to_user(mnt_id, &real_mount(path->mnt)->mnt_id,
69938- sizeof(*mnt_id)) ||
69939+ if (put_user(real_mount(path->mnt)->mnt_id, mnt_id) ||
69940 copy_to_user(ufh, handle,
69941 sizeof(struct file_handle) + handle_bytes))
69942 retval = -EFAULT;
69943@@ -175,7 +175,7 @@ static int handle_to_path(int mountdirfd, struct file_handle __user *ufh,
69944 * the directory. Ideally we would like CAP_DAC_SEARCH.
69945 * But we don't have that
69946 */
69947- if (!capable(CAP_DAC_READ_SEARCH)) {
69948+ if (!capable(CAP_DAC_READ_SEARCH) || !gr_chroot_fhandle()) {
69949 retval = -EPERM;
69950 goto out_err;
69951 }
69952diff --git a/fs/file.c b/fs/file.c
69953index ee738ea..f6c15629 100644
69954--- a/fs/file.c
69955+++ b/fs/file.c
69956@@ -16,6 +16,7 @@
69957 #include <linux/slab.h>
69958 #include <linux/vmalloc.h>
69959 #include <linux/file.h>
69960+#include <linux/security.h>
69961 #include <linux/fdtable.h>
69962 #include <linux/bitops.h>
69963 #include <linux/interrupt.h>
69964@@ -139,7 +140,7 @@ out:
69965 * Return <0 error code on error; 1 on successful completion.
69966 * The files->file_lock should be held on entry, and will be held on exit.
69967 */
69968-static int expand_fdtable(struct files_struct *files, int nr)
69969+static int expand_fdtable(struct files_struct *files, unsigned int nr)
69970 __releases(files->file_lock)
69971 __acquires(files->file_lock)
69972 {
69973@@ -184,7 +185,7 @@ static int expand_fdtable(struct files_struct *files, int nr)
69974 * expanded and execution may have blocked.
69975 * The files->file_lock should be held on entry, and will be held on exit.
69976 */
69977-static int expand_files(struct files_struct *files, int nr)
69978+static int expand_files(struct files_struct *files, unsigned int nr)
69979 {
69980 struct fdtable *fdt;
69981
69982@@ -800,6 +801,7 @@ int replace_fd(unsigned fd, struct file *file, unsigned flags)
69983 if (!file)
69984 return __close_fd(files, fd);
69985
69986+ gr_learn_resource(current, RLIMIT_NOFILE, fd, 0);
69987 if (fd >= rlimit(RLIMIT_NOFILE))
69988 return -EBADF;
69989
69990@@ -826,6 +828,7 @@ SYSCALL_DEFINE3(dup3, unsigned int, oldfd, unsigned int, newfd, int, flags)
69991 if (unlikely(oldfd == newfd))
69992 return -EINVAL;
69993
69994+ gr_learn_resource(current, RLIMIT_NOFILE, newfd, 0);
69995 if (newfd >= rlimit(RLIMIT_NOFILE))
69996 return -EBADF;
69997
69998@@ -881,6 +884,7 @@ SYSCALL_DEFINE1(dup, unsigned int, fildes)
69999 int f_dupfd(unsigned int from, struct file *file, unsigned flags)
70000 {
70001 int err;
70002+ gr_learn_resource(current, RLIMIT_NOFILE, from, 0);
70003 if (from >= rlimit(RLIMIT_NOFILE))
70004 return -EINVAL;
70005 err = alloc_fd(from, flags);
70006diff --git a/fs/filesystems.c b/fs/filesystems.c
70007index 5797d45..7d7d79a 100644
70008--- a/fs/filesystems.c
70009+++ b/fs/filesystems.c
70010@@ -275,7 +275,11 @@ struct file_system_type *get_fs_type(const char *name)
70011 int len = dot ? dot - name : strlen(name);
70012
70013 fs = __get_fs_type(name, len);
70014+#ifdef CONFIG_GRKERNSEC_MODHARDEN
70015+ if (!fs && (___request_module(true, "grsec_modharden_fs", "fs-%.*s", len, name) == 0))
70016+#else
70017 if (!fs && (request_module("fs-%.*s", len, name) == 0))
70018+#endif
70019 fs = __get_fs_type(name, len);
70020
70021 if (dot && fs && !(fs->fs_flags & FS_HAS_SUBTYPE)) {
70022diff --git a/fs/fs_struct.c b/fs/fs_struct.c
70023index 7dca743..1ff87ae 100644
70024--- a/fs/fs_struct.c
70025+++ b/fs/fs_struct.c
70026@@ -4,6 +4,7 @@
70027 #include <linux/path.h>
70028 #include <linux/slab.h>
70029 #include <linux/fs_struct.h>
70030+#include <linux/grsecurity.h>
70031 #include "internal.h"
70032
70033 /*
70034@@ -15,14 +16,18 @@ void set_fs_root(struct fs_struct *fs, const struct path *path)
70035 struct path old_root;
70036
70037 path_get(path);
70038+ gr_inc_chroot_refcnts(path->dentry, path->mnt);
70039 spin_lock(&fs->lock);
70040 write_seqcount_begin(&fs->seq);
70041 old_root = fs->root;
70042 fs->root = *path;
70043+ gr_set_chroot_entries(current, path);
70044 write_seqcount_end(&fs->seq);
70045 spin_unlock(&fs->lock);
70046- if (old_root.dentry)
70047+ if (old_root.dentry) {
70048+ gr_dec_chroot_refcnts(old_root.dentry, old_root.mnt);
70049 path_put(&old_root);
70050+ }
70051 }
70052
70053 /*
70054@@ -67,6 +72,10 @@ void chroot_fs_refs(const struct path *old_root, const struct path *new_root)
70055 int hits = 0;
70056 spin_lock(&fs->lock);
70057 write_seqcount_begin(&fs->seq);
70058+ /* this root replacement is only done by pivot_root,
70059+ leave grsec's chroot tagging alone for this task
70060+ so that a pivoted root isn't treated as a chroot
70061+ */
70062 hits += replace_path(&fs->root, old_root, new_root);
70063 hits += replace_path(&fs->pwd, old_root, new_root);
70064 write_seqcount_end(&fs->seq);
70065@@ -85,6 +94,7 @@ void chroot_fs_refs(const struct path *old_root, const struct path *new_root)
70066
70067 void free_fs_struct(struct fs_struct *fs)
70068 {
70069+ gr_dec_chroot_refcnts(fs->root.dentry, fs->root.mnt);
70070 path_put(&fs->root);
70071 path_put(&fs->pwd);
70072 kmem_cache_free(fs_cachep, fs);
70073@@ -99,7 +109,8 @@ void exit_fs(struct task_struct *tsk)
70074 task_lock(tsk);
70075 spin_lock(&fs->lock);
70076 tsk->fs = NULL;
70077- kill = !--fs->users;
70078+ gr_clear_chroot_entries(tsk);
70079+ kill = !atomic_dec_return(&fs->users);
70080 spin_unlock(&fs->lock);
70081 task_unlock(tsk);
70082 if (kill)
70083@@ -112,7 +123,7 @@ struct fs_struct *copy_fs_struct(struct fs_struct *old)
70084 struct fs_struct *fs = kmem_cache_alloc(fs_cachep, GFP_KERNEL);
70085 /* We don't need to lock fs - think why ;-) */
70086 if (fs) {
70087- fs->users = 1;
70088+ atomic_set(&fs->users, 1);
70089 fs->in_exec = 0;
70090 spin_lock_init(&fs->lock);
70091 seqcount_init(&fs->seq);
70092@@ -121,9 +132,13 @@ struct fs_struct *copy_fs_struct(struct fs_struct *old)
70093 spin_lock(&old->lock);
70094 fs->root = old->root;
70095 path_get(&fs->root);
70096+ /* instead of calling gr_set_chroot_entries here,
70097+ we call it from every caller of this function
70098+ */
70099 fs->pwd = old->pwd;
70100 path_get(&fs->pwd);
70101 spin_unlock(&old->lock);
70102+ gr_inc_chroot_refcnts(fs->root.dentry, fs->root.mnt);
70103 }
70104 return fs;
70105 }
70106@@ -139,8 +154,9 @@ int unshare_fs_struct(void)
70107
70108 task_lock(current);
70109 spin_lock(&fs->lock);
70110- kill = !--fs->users;
70111+ kill = !atomic_dec_return(&fs->users);
70112 current->fs = new_fs;
70113+ gr_set_chroot_entries(current, &new_fs->root);
70114 spin_unlock(&fs->lock);
70115 task_unlock(current);
70116
70117@@ -153,13 +169,13 @@ EXPORT_SYMBOL_GPL(unshare_fs_struct);
70118
70119 int current_umask(void)
70120 {
70121- return current->fs->umask;
70122+ return current->fs->umask | gr_acl_umask();
70123 }
70124 EXPORT_SYMBOL(current_umask);
70125
70126 /* to be mentioned only in INIT_TASK */
70127 struct fs_struct init_fs = {
70128- .users = 1,
70129+ .users = ATOMIC_INIT(1),
70130 .lock = __SPIN_LOCK_UNLOCKED(init_fs.lock),
70131 .seq = SEQCNT_ZERO(init_fs.seq),
70132 .umask = 0022,
70133diff --git a/fs/fscache/cookie.c b/fs/fscache/cookie.c
70134index 89acec7..a575262 100644
70135--- a/fs/fscache/cookie.c
70136+++ b/fs/fscache/cookie.c
70137@@ -19,7 +19,7 @@
70138
70139 struct kmem_cache *fscache_cookie_jar;
70140
70141-static atomic_t fscache_object_debug_id = ATOMIC_INIT(0);
70142+static atomic_unchecked_t fscache_object_debug_id = ATOMIC_INIT(0);
70143
70144 static int fscache_acquire_non_index_cookie(struct fscache_cookie *cookie);
70145 static int fscache_alloc_object(struct fscache_cache *cache,
70146@@ -69,11 +69,11 @@ struct fscache_cookie *__fscache_acquire_cookie(
70147 parent ? (char *) parent->def->name : "<no-parent>",
70148 def->name, netfs_data, enable);
70149
70150- fscache_stat(&fscache_n_acquires);
70151+ fscache_stat_unchecked(&fscache_n_acquires);
70152
70153 /* if there's no parent cookie, then we don't create one here either */
70154 if (!parent) {
70155- fscache_stat(&fscache_n_acquires_null);
70156+ fscache_stat_unchecked(&fscache_n_acquires_null);
70157 _leave(" [no parent]");
70158 return NULL;
70159 }
70160@@ -88,7 +88,7 @@ struct fscache_cookie *__fscache_acquire_cookie(
70161 /* allocate and initialise a cookie */
70162 cookie = kmem_cache_alloc(fscache_cookie_jar, GFP_KERNEL);
70163 if (!cookie) {
70164- fscache_stat(&fscache_n_acquires_oom);
70165+ fscache_stat_unchecked(&fscache_n_acquires_oom);
70166 _leave(" [ENOMEM]");
70167 return NULL;
70168 }
70169@@ -115,13 +115,13 @@ struct fscache_cookie *__fscache_acquire_cookie(
70170
70171 switch (cookie->def->type) {
70172 case FSCACHE_COOKIE_TYPE_INDEX:
70173- fscache_stat(&fscache_n_cookie_index);
70174+ fscache_stat_unchecked(&fscache_n_cookie_index);
70175 break;
70176 case FSCACHE_COOKIE_TYPE_DATAFILE:
70177- fscache_stat(&fscache_n_cookie_data);
70178+ fscache_stat_unchecked(&fscache_n_cookie_data);
70179 break;
70180 default:
70181- fscache_stat(&fscache_n_cookie_special);
70182+ fscache_stat_unchecked(&fscache_n_cookie_special);
70183 break;
70184 }
70185
70186@@ -135,7 +135,7 @@ struct fscache_cookie *__fscache_acquire_cookie(
70187 } else {
70188 atomic_dec(&parent->n_children);
70189 __fscache_cookie_put(cookie);
70190- fscache_stat(&fscache_n_acquires_nobufs);
70191+ fscache_stat_unchecked(&fscache_n_acquires_nobufs);
70192 _leave(" = NULL");
70193 return NULL;
70194 }
70195@@ -144,7 +144,7 @@ struct fscache_cookie *__fscache_acquire_cookie(
70196 }
70197 }
70198
70199- fscache_stat(&fscache_n_acquires_ok);
70200+ fscache_stat_unchecked(&fscache_n_acquires_ok);
70201 _leave(" = %p", cookie);
70202 return cookie;
70203 }
70204@@ -213,7 +213,7 @@ static int fscache_acquire_non_index_cookie(struct fscache_cookie *cookie)
70205 cache = fscache_select_cache_for_object(cookie->parent);
70206 if (!cache) {
70207 up_read(&fscache_addremove_sem);
70208- fscache_stat(&fscache_n_acquires_no_cache);
70209+ fscache_stat_unchecked(&fscache_n_acquires_no_cache);
70210 _leave(" = -ENOMEDIUM [no cache]");
70211 return -ENOMEDIUM;
70212 }
70213@@ -297,14 +297,14 @@ static int fscache_alloc_object(struct fscache_cache *cache,
70214 object = cache->ops->alloc_object(cache, cookie);
70215 fscache_stat_d(&fscache_n_cop_alloc_object);
70216 if (IS_ERR(object)) {
70217- fscache_stat(&fscache_n_object_no_alloc);
70218+ fscache_stat_unchecked(&fscache_n_object_no_alloc);
70219 ret = PTR_ERR(object);
70220 goto error;
70221 }
70222
70223- fscache_stat(&fscache_n_object_alloc);
70224+ fscache_stat_unchecked(&fscache_n_object_alloc);
70225
70226- object->debug_id = atomic_inc_return(&fscache_object_debug_id);
70227+ object->debug_id = atomic_inc_return_unchecked(&fscache_object_debug_id);
70228
70229 _debug("ALLOC OBJ%x: %s {%lx}",
70230 object->debug_id, cookie->def->name, object->events);
70231@@ -418,7 +418,7 @@ void __fscache_invalidate(struct fscache_cookie *cookie)
70232
70233 _enter("{%s}", cookie->def->name);
70234
70235- fscache_stat(&fscache_n_invalidates);
70236+ fscache_stat_unchecked(&fscache_n_invalidates);
70237
70238 /* Only permit invalidation of data files. Invalidating an index will
70239 * require the caller to release all its attachments to the tree rooted
70240@@ -476,10 +476,10 @@ void __fscache_update_cookie(struct fscache_cookie *cookie)
70241 {
70242 struct fscache_object *object;
70243
70244- fscache_stat(&fscache_n_updates);
70245+ fscache_stat_unchecked(&fscache_n_updates);
70246
70247 if (!cookie) {
70248- fscache_stat(&fscache_n_updates_null);
70249+ fscache_stat_unchecked(&fscache_n_updates_null);
70250 _leave(" [no cookie]");
70251 return;
70252 }
70253@@ -580,12 +580,12 @@ EXPORT_SYMBOL(__fscache_disable_cookie);
70254 */
70255 void __fscache_relinquish_cookie(struct fscache_cookie *cookie, bool retire)
70256 {
70257- fscache_stat(&fscache_n_relinquishes);
70258+ fscache_stat_unchecked(&fscache_n_relinquishes);
70259 if (retire)
70260- fscache_stat(&fscache_n_relinquishes_retire);
70261+ fscache_stat_unchecked(&fscache_n_relinquishes_retire);
70262
70263 if (!cookie) {
70264- fscache_stat(&fscache_n_relinquishes_null);
70265+ fscache_stat_unchecked(&fscache_n_relinquishes_null);
70266 _leave(" [no cookie]");
70267 return;
70268 }
70269@@ -686,7 +686,7 @@ int __fscache_check_consistency(struct fscache_cookie *cookie)
70270 if (test_bit(FSCACHE_IOERROR, &object->cache->flags))
70271 goto inconsistent;
70272
70273- op->debug_id = atomic_inc_return(&fscache_op_debug_id);
70274+ op->debug_id = atomic_inc_return_unchecked(&fscache_op_debug_id);
70275
70276 __fscache_use_cookie(cookie);
70277 if (fscache_submit_op(object, op) < 0)
70278diff --git a/fs/fscache/internal.h b/fs/fscache/internal.h
70279index 7872a62..d91b19f 100644
70280--- a/fs/fscache/internal.h
70281+++ b/fs/fscache/internal.h
70282@@ -137,8 +137,8 @@ extern void fscache_operation_gc(struct work_struct *);
70283 extern int fscache_wait_for_deferred_lookup(struct fscache_cookie *);
70284 extern int fscache_wait_for_operation_activation(struct fscache_object *,
70285 struct fscache_operation *,
70286- atomic_t *,
70287- atomic_t *,
70288+ atomic_unchecked_t *,
70289+ atomic_unchecked_t *,
70290 void (*)(struct fscache_operation *));
70291 extern void fscache_invalidate_writes(struct fscache_cookie *);
70292
70293@@ -157,101 +157,101 @@ extern void fscache_proc_cleanup(void);
70294 * stats.c
70295 */
70296 #ifdef CONFIG_FSCACHE_STATS
70297-extern atomic_t fscache_n_ops_processed[FSCACHE_MAX_THREADS];
70298-extern atomic_t fscache_n_objs_processed[FSCACHE_MAX_THREADS];
70299+extern atomic_unchecked_t fscache_n_ops_processed[FSCACHE_MAX_THREADS];
70300+extern atomic_unchecked_t fscache_n_objs_processed[FSCACHE_MAX_THREADS];
70301
70302-extern atomic_t fscache_n_op_pend;
70303-extern atomic_t fscache_n_op_run;
70304-extern atomic_t fscache_n_op_enqueue;
70305-extern atomic_t fscache_n_op_deferred_release;
70306-extern atomic_t fscache_n_op_release;
70307-extern atomic_t fscache_n_op_gc;
70308-extern atomic_t fscache_n_op_cancelled;
70309-extern atomic_t fscache_n_op_rejected;
70310+extern atomic_unchecked_t fscache_n_op_pend;
70311+extern atomic_unchecked_t fscache_n_op_run;
70312+extern atomic_unchecked_t fscache_n_op_enqueue;
70313+extern atomic_unchecked_t fscache_n_op_deferred_release;
70314+extern atomic_unchecked_t fscache_n_op_release;
70315+extern atomic_unchecked_t fscache_n_op_gc;
70316+extern atomic_unchecked_t fscache_n_op_cancelled;
70317+extern atomic_unchecked_t fscache_n_op_rejected;
70318
70319-extern atomic_t fscache_n_attr_changed;
70320-extern atomic_t fscache_n_attr_changed_ok;
70321-extern atomic_t fscache_n_attr_changed_nobufs;
70322-extern atomic_t fscache_n_attr_changed_nomem;
70323-extern atomic_t fscache_n_attr_changed_calls;
70324+extern atomic_unchecked_t fscache_n_attr_changed;
70325+extern atomic_unchecked_t fscache_n_attr_changed_ok;
70326+extern atomic_unchecked_t fscache_n_attr_changed_nobufs;
70327+extern atomic_unchecked_t fscache_n_attr_changed_nomem;
70328+extern atomic_unchecked_t fscache_n_attr_changed_calls;
70329
70330-extern atomic_t fscache_n_allocs;
70331-extern atomic_t fscache_n_allocs_ok;
70332-extern atomic_t fscache_n_allocs_wait;
70333-extern atomic_t fscache_n_allocs_nobufs;
70334-extern atomic_t fscache_n_allocs_intr;
70335-extern atomic_t fscache_n_allocs_object_dead;
70336-extern atomic_t fscache_n_alloc_ops;
70337-extern atomic_t fscache_n_alloc_op_waits;
70338+extern atomic_unchecked_t fscache_n_allocs;
70339+extern atomic_unchecked_t fscache_n_allocs_ok;
70340+extern atomic_unchecked_t fscache_n_allocs_wait;
70341+extern atomic_unchecked_t fscache_n_allocs_nobufs;
70342+extern atomic_unchecked_t fscache_n_allocs_intr;
70343+extern atomic_unchecked_t fscache_n_allocs_object_dead;
70344+extern atomic_unchecked_t fscache_n_alloc_ops;
70345+extern atomic_unchecked_t fscache_n_alloc_op_waits;
70346
70347-extern atomic_t fscache_n_retrievals;
70348-extern atomic_t fscache_n_retrievals_ok;
70349-extern atomic_t fscache_n_retrievals_wait;
70350-extern atomic_t fscache_n_retrievals_nodata;
70351-extern atomic_t fscache_n_retrievals_nobufs;
70352-extern atomic_t fscache_n_retrievals_intr;
70353-extern atomic_t fscache_n_retrievals_nomem;
70354-extern atomic_t fscache_n_retrievals_object_dead;
70355-extern atomic_t fscache_n_retrieval_ops;
70356-extern atomic_t fscache_n_retrieval_op_waits;
70357+extern atomic_unchecked_t fscache_n_retrievals;
70358+extern atomic_unchecked_t fscache_n_retrievals_ok;
70359+extern atomic_unchecked_t fscache_n_retrievals_wait;
70360+extern atomic_unchecked_t fscache_n_retrievals_nodata;
70361+extern atomic_unchecked_t fscache_n_retrievals_nobufs;
70362+extern atomic_unchecked_t fscache_n_retrievals_intr;
70363+extern atomic_unchecked_t fscache_n_retrievals_nomem;
70364+extern atomic_unchecked_t fscache_n_retrievals_object_dead;
70365+extern atomic_unchecked_t fscache_n_retrieval_ops;
70366+extern atomic_unchecked_t fscache_n_retrieval_op_waits;
70367
70368-extern atomic_t fscache_n_stores;
70369-extern atomic_t fscache_n_stores_ok;
70370-extern atomic_t fscache_n_stores_again;
70371-extern atomic_t fscache_n_stores_nobufs;
70372-extern atomic_t fscache_n_stores_oom;
70373-extern atomic_t fscache_n_store_ops;
70374-extern atomic_t fscache_n_store_calls;
70375-extern atomic_t fscache_n_store_pages;
70376-extern atomic_t fscache_n_store_radix_deletes;
70377-extern atomic_t fscache_n_store_pages_over_limit;
70378+extern atomic_unchecked_t fscache_n_stores;
70379+extern atomic_unchecked_t fscache_n_stores_ok;
70380+extern atomic_unchecked_t fscache_n_stores_again;
70381+extern atomic_unchecked_t fscache_n_stores_nobufs;
70382+extern atomic_unchecked_t fscache_n_stores_oom;
70383+extern atomic_unchecked_t fscache_n_store_ops;
70384+extern atomic_unchecked_t fscache_n_store_calls;
70385+extern atomic_unchecked_t fscache_n_store_pages;
70386+extern atomic_unchecked_t fscache_n_store_radix_deletes;
70387+extern atomic_unchecked_t fscache_n_store_pages_over_limit;
70388
70389-extern atomic_t fscache_n_store_vmscan_not_storing;
70390-extern atomic_t fscache_n_store_vmscan_gone;
70391-extern atomic_t fscache_n_store_vmscan_busy;
70392-extern atomic_t fscache_n_store_vmscan_cancelled;
70393-extern atomic_t fscache_n_store_vmscan_wait;
70394+extern atomic_unchecked_t fscache_n_store_vmscan_not_storing;
70395+extern atomic_unchecked_t fscache_n_store_vmscan_gone;
70396+extern atomic_unchecked_t fscache_n_store_vmscan_busy;
70397+extern atomic_unchecked_t fscache_n_store_vmscan_cancelled;
70398+extern atomic_unchecked_t fscache_n_store_vmscan_wait;
70399
70400-extern atomic_t fscache_n_marks;
70401-extern atomic_t fscache_n_uncaches;
70402+extern atomic_unchecked_t fscache_n_marks;
70403+extern atomic_unchecked_t fscache_n_uncaches;
70404
70405-extern atomic_t fscache_n_acquires;
70406-extern atomic_t fscache_n_acquires_null;
70407-extern atomic_t fscache_n_acquires_no_cache;
70408-extern atomic_t fscache_n_acquires_ok;
70409-extern atomic_t fscache_n_acquires_nobufs;
70410-extern atomic_t fscache_n_acquires_oom;
70411+extern atomic_unchecked_t fscache_n_acquires;
70412+extern atomic_unchecked_t fscache_n_acquires_null;
70413+extern atomic_unchecked_t fscache_n_acquires_no_cache;
70414+extern atomic_unchecked_t fscache_n_acquires_ok;
70415+extern atomic_unchecked_t fscache_n_acquires_nobufs;
70416+extern atomic_unchecked_t fscache_n_acquires_oom;
70417
70418-extern atomic_t fscache_n_invalidates;
70419-extern atomic_t fscache_n_invalidates_run;
70420+extern atomic_unchecked_t fscache_n_invalidates;
70421+extern atomic_unchecked_t fscache_n_invalidates_run;
70422
70423-extern atomic_t fscache_n_updates;
70424-extern atomic_t fscache_n_updates_null;
70425-extern atomic_t fscache_n_updates_run;
70426+extern atomic_unchecked_t fscache_n_updates;
70427+extern atomic_unchecked_t fscache_n_updates_null;
70428+extern atomic_unchecked_t fscache_n_updates_run;
70429
70430-extern atomic_t fscache_n_relinquishes;
70431-extern atomic_t fscache_n_relinquishes_null;
70432-extern atomic_t fscache_n_relinquishes_waitcrt;
70433-extern atomic_t fscache_n_relinquishes_retire;
70434+extern atomic_unchecked_t fscache_n_relinquishes;
70435+extern atomic_unchecked_t fscache_n_relinquishes_null;
70436+extern atomic_unchecked_t fscache_n_relinquishes_waitcrt;
70437+extern atomic_unchecked_t fscache_n_relinquishes_retire;
70438
70439-extern atomic_t fscache_n_cookie_index;
70440-extern atomic_t fscache_n_cookie_data;
70441-extern atomic_t fscache_n_cookie_special;
70442+extern atomic_unchecked_t fscache_n_cookie_index;
70443+extern atomic_unchecked_t fscache_n_cookie_data;
70444+extern atomic_unchecked_t fscache_n_cookie_special;
70445
70446-extern atomic_t fscache_n_object_alloc;
70447-extern atomic_t fscache_n_object_no_alloc;
70448-extern atomic_t fscache_n_object_lookups;
70449-extern atomic_t fscache_n_object_lookups_negative;
70450-extern atomic_t fscache_n_object_lookups_positive;
70451-extern atomic_t fscache_n_object_lookups_timed_out;
70452-extern atomic_t fscache_n_object_created;
70453-extern atomic_t fscache_n_object_avail;
70454-extern atomic_t fscache_n_object_dead;
70455+extern atomic_unchecked_t fscache_n_object_alloc;
70456+extern atomic_unchecked_t fscache_n_object_no_alloc;
70457+extern atomic_unchecked_t fscache_n_object_lookups;
70458+extern atomic_unchecked_t fscache_n_object_lookups_negative;
70459+extern atomic_unchecked_t fscache_n_object_lookups_positive;
70460+extern atomic_unchecked_t fscache_n_object_lookups_timed_out;
70461+extern atomic_unchecked_t fscache_n_object_created;
70462+extern atomic_unchecked_t fscache_n_object_avail;
70463+extern atomic_unchecked_t fscache_n_object_dead;
70464
70465-extern atomic_t fscache_n_checkaux_none;
70466-extern atomic_t fscache_n_checkaux_okay;
70467-extern atomic_t fscache_n_checkaux_update;
70468-extern atomic_t fscache_n_checkaux_obsolete;
70469+extern atomic_unchecked_t fscache_n_checkaux_none;
70470+extern atomic_unchecked_t fscache_n_checkaux_okay;
70471+extern atomic_unchecked_t fscache_n_checkaux_update;
70472+extern atomic_unchecked_t fscache_n_checkaux_obsolete;
70473
70474 extern atomic_t fscache_n_cop_alloc_object;
70475 extern atomic_t fscache_n_cop_lookup_object;
70476@@ -276,6 +276,11 @@ static inline void fscache_stat(atomic_t *stat)
70477 atomic_inc(stat);
70478 }
70479
70480+static inline void fscache_stat_unchecked(atomic_unchecked_t *stat)
70481+{
70482+ atomic_inc_unchecked(stat);
70483+}
70484+
70485 static inline void fscache_stat_d(atomic_t *stat)
70486 {
70487 atomic_dec(stat);
70488@@ -288,6 +293,7 @@ extern const struct file_operations fscache_stats_fops;
70489
70490 #define __fscache_stat(stat) (NULL)
70491 #define fscache_stat(stat) do {} while (0)
70492+#define fscache_stat_unchecked(stat) do {} while (0)
70493 #define fscache_stat_d(stat) do {} while (0)
70494 #endif
70495
70496diff --git a/fs/fscache/object.c b/fs/fscache/object.c
70497index da032da..0076ce7 100644
70498--- a/fs/fscache/object.c
70499+++ b/fs/fscache/object.c
70500@@ -454,7 +454,7 @@ static const struct fscache_state *fscache_look_up_object(struct fscache_object
70501 _debug("LOOKUP \"%s\" in \"%s\"",
70502 cookie->def->name, object->cache->tag->name);
70503
70504- fscache_stat(&fscache_n_object_lookups);
70505+ fscache_stat_unchecked(&fscache_n_object_lookups);
70506 fscache_stat(&fscache_n_cop_lookup_object);
70507 ret = object->cache->ops->lookup_object(object);
70508 fscache_stat_d(&fscache_n_cop_lookup_object);
70509@@ -464,7 +464,7 @@ static const struct fscache_state *fscache_look_up_object(struct fscache_object
70510 if (ret == -ETIMEDOUT) {
70511 /* probably stuck behind another object, so move this one to
70512 * the back of the queue */
70513- fscache_stat(&fscache_n_object_lookups_timed_out);
70514+ fscache_stat_unchecked(&fscache_n_object_lookups_timed_out);
70515 _leave(" [timeout]");
70516 return NO_TRANSIT;
70517 }
70518@@ -492,7 +492,7 @@ void fscache_object_lookup_negative(struct fscache_object *object)
70519 _enter("{OBJ%x,%s}", object->debug_id, object->state->name);
70520
70521 if (!test_and_set_bit(FSCACHE_OBJECT_IS_LOOKED_UP, &object->flags)) {
70522- fscache_stat(&fscache_n_object_lookups_negative);
70523+ fscache_stat_unchecked(&fscache_n_object_lookups_negative);
70524
70525 /* Allow write requests to begin stacking up and read requests to begin
70526 * returning ENODATA.
70527@@ -527,7 +527,7 @@ void fscache_obtained_object(struct fscache_object *object)
70528 /* if we were still looking up, then we must have a positive lookup
70529 * result, in which case there may be data available */
70530 if (!test_and_set_bit(FSCACHE_OBJECT_IS_LOOKED_UP, &object->flags)) {
70531- fscache_stat(&fscache_n_object_lookups_positive);
70532+ fscache_stat_unchecked(&fscache_n_object_lookups_positive);
70533
70534 /* We do (presumably) have data */
70535 clear_bit_unlock(FSCACHE_COOKIE_NO_DATA_YET, &cookie->flags);
70536@@ -539,7 +539,7 @@ void fscache_obtained_object(struct fscache_object *object)
70537 clear_bit_unlock(FSCACHE_COOKIE_LOOKING_UP, &cookie->flags);
70538 wake_up_bit(&cookie->flags, FSCACHE_COOKIE_LOOKING_UP);
70539 } else {
70540- fscache_stat(&fscache_n_object_created);
70541+ fscache_stat_unchecked(&fscache_n_object_created);
70542 }
70543
70544 set_bit(FSCACHE_OBJECT_IS_AVAILABLE, &object->flags);
70545@@ -575,7 +575,7 @@ static const struct fscache_state *fscache_object_available(struct fscache_objec
70546 fscache_stat_d(&fscache_n_cop_lookup_complete);
70547
70548 fscache_hist(fscache_obj_instantiate_histogram, object->lookup_jif);
70549- fscache_stat(&fscache_n_object_avail);
70550+ fscache_stat_unchecked(&fscache_n_object_avail);
70551
70552 _leave("");
70553 return transit_to(JUMPSTART_DEPS);
70554@@ -722,7 +722,7 @@ static const struct fscache_state *fscache_drop_object(struct fscache_object *ob
70555
70556 /* this just shifts the object release to the work processor */
70557 fscache_put_object(object);
70558- fscache_stat(&fscache_n_object_dead);
70559+ fscache_stat_unchecked(&fscache_n_object_dead);
70560
70561 _leave("");
70562 return transit_to(OBJECT_DEAD);
70563@@ -887,7 +887,7 @@ enum fscache_checkaux fscache_check_aux(struct fscache_object *object,
70564 enum fscache_checkaux result;
70565
70566 if (!object->cookie->def->check_aux) {
70567- fscache_stat(&fscache_n_checkaux_none);
70568+ fscache_stat_unchecked(&fscache_n_checkaux_none);
70569 return FSCACHE_CHECKAUX_OKAY;
70570 }
70571
70572@@ -896,17 +896,17 @@ enum fscache_checkaux fscache_check_aux(struct fscache_object *object,
70573 switch (result) {
70574 /* entry okay as is */
70575 case FSCACHE_CHECKAUX_OKAY:
70576- fscache_stat(&fscache_n_checkaux_okay);
70577+ fscache_stat_unchecked(&fscache_n_checkaux_okay);
70578 break;
70579
70580 /* entry requires update */
70581 case FSCACHE_CHECKAUX_NEEDS_UPDATE:
70582- fscache_stat(&fscache_n_checkaux_update);
70583+ fscache_stat_unchecked(&fscache_n_checkaux_update);
70584 break;
70585
70586 /* entry requires deletion */
70587 case FSCACHE_CHECKAUX_OBSOLETE:
70588- fscache_stat(&fscache_n_checkaux_obsolete);
70589+ fscache_stat_unchecked(&fscache_n_checkaux_obsolete);
70590 break;
70591
70592 default:
70593@@ -993,7 +993,7 @@ static const struct fscache_state *fscache_invalidate_object(struct fscache_obje
70594 {
70595 const struct fscache_state *s;
70596
70597- fscache_stat(&fscache_n_invalidates_run);
70598+ fscache_stat_unchecked(&fscache_n_invalidates_run);
70599 fscache_stat(&fscache_n_cop_invalidate_object);
70600 s = _fscache_invalidate_object(object, event);
70601 fscache_stat_d(&fscache_n_cop_invalidate_object);
70602@@ -1008,7 +1008,7 @@ static const struct fscache_state *fscache_update_object(struct fscache_object *
70603 {
70604 _enter("{OBJ%x},%d", object->debug_id, event);
70605
70606- fscache_stat(&fscache_n_updates_run);
70607+ fscache_stat_unchecked(&fscache_n_updates_run);
70608 fscache_stat(&fscache_n_cop_update_object);
70609 object->cache->ops->update_object(object);
70610 fscache_stat_d(&fscache_n_cop_update_object);
70611diff --git a/fs/fscache/operation.c b/fs/fscache/operation.c
70612index e7b87a0..a85d47a 100644
70613--- a/fs/fscache/operation.c
70614+++ b/fs/fscache/operation.c
70615@@ -17,7 +17,7 @@
70616 #include <linux/slab.h>
70617 #include "internal.h"
70618
70619-atomic_t fscache_op_debug_id;
70620+atomic_unchecked_t fscache_op_debug_id;
70621 EXPORT_SYMBOL(fscache_op_debug_id);
70622
70623 /**
70624@@ -39,7 +39,7 @@ void fscache_enqueue_operation(struct fscache_operation *op)
70625 ASSERTCMP(atomic_read(&op->usage), >, 0);
70626 ASSERTCMP(op->state, ==, FSCACHE_OP_ST_IN_PROGRESS);
70627
70628- fscache_stat(&fscache_n_op_enqueue);
70629+ fscache_stat_unchecked(&fscache_n_op_enqueue);
70630 switch (op->flags & FSCACHE_OP_TYPE) {
70631 case FSCACHE_OP_ASYNC:
70632 _debug("queue async");
70633@@ -72,7 +72,7 @@ static void fscache_run_op(struct fscache_object *object,
70634 wake_up_bit(&op->flags, FSCACHE_OP_WAITING);
70635 if (op->processor)
70636 fscache_enqueue_operation(op);
70637- fscache_stat(&fscache_n_op_run);
70638+ fscache_stat_unchecked(&fscache_n_op_run);
70639 }
70640
70641 /*
70642@@ -104,11 +104,11 @@ int fscache_submit_exclusive_op(struct fscache_object *object,
70643 if (object->n_in_progress > 0) {
70644 atomic_inc(&op->usage);
70645 list_add_tail(&op->pend_link, &object->pending_ops);
70646- fscache_stat(&fscache_n_op_pend);
70647+ fscache_stat_unchecked(&fscache_n_op_pend);
70648 } else if (!list_empty(&object->pending_ops)) {
70649 atomic_inc(&op->usage);
70650 list_add_tail(&op->pend_link, &object->pending_ops);
70651- fscache_stat(&fscache_n_op_pend);
70652+ fscache_stat_unchecked(&fscache_n_op_pend);
70653 fscache_start_operations(object);
70654 } else {
70655 ASSERTCMP(object->n_in_progress, ==, 0);
70656@@ -124,7 +124,7 @@ int fscache_submit_exclusive_op(struct fscache_object *object,
70657 object->n_exclusive++; /* reads and writes must wait */
70658 atomic_inc(&op->usage);
70659 list_add_tail(&op->pend_link, &object->pending_ops);
70660- fscache_stat(&fscache_n_op_pend);
70661+ fscache_stat_unchecked(&fscache_n_op_pend);
70662 ret = 0;
70663 } else {
70664 /* If we're in any other state, there must have been an I/O
70665@@ -211,11 +211,11 @@ int fscache_submit_op(struct fscache_object *object,
70666 if (object->n_exclusive > 0) {
70667 atomic_inc(&op->usage);
70668 list_add_tail(&op->pend_link, &object->pending_ops);
70669- fscache_stat(&fscache_n_op_pend);
70670+ fscache_stat_unchecked(&fscache_n_op_pend);
70671 } else if (!list_empty(&object->pending_ops)) {
70672 atomic_inc(&op->usage);
70673 list_add_tail(&op->pend_link, &object->pending_ops);
70674- fscache_stat(&fscache_n_op_pend);
70675+ fscache_stat_unchecked(&fscache_n_op_pend);
70676 fscache_start_operations(object);
70677 } else {
70678 ASSERTCMP(object->n_exclusive, ==, 0);
70679@@ -227,10 +227,10 @@ int fscache_submit_op(struct fscache_object *object,
70680 object->n_ops++;
70681 atomic_inc(&op->usage);
70682 list_add_tail(&op->pend_link, &object->pending_ops);
70683- fscache_stat(&fscache_n_op_pend);
70684+ fscache_stat_unchecked(&fscache_n_op_pend);
70685 ret = 0;
70686 } else if (fscache_object_is_dying(object)) {
70687- fscache_stat(&fscache_n_op_rejected);
70688+ fscache_stat_unchecked(&fscache_n_op_rejected);
70689 op->state = FSCACHE_OP_ST_CANCELLED;
70690 ret = -ENOBUFS;
70691 } else if (!test_bit(FSCACHE_IOERROR, &object->cache->flags)) {
70692@@ -309,7 +309,7 @@ int fscache_cancel_op(struct fscache_operation *op,
70693 ret = -EBUSY;
70694 if (op->state == FSCACHE_OP_ST_PENDING) {
70695 ASSERT(!list_empty(&op->pend_link));
70696- fscache_stat(&fscache_n_op_cancelled);
70697+ fscache_stat_unchecked(&fscache_n_op_cancelled);
70698 list_del_init(&op->pend_link);
70699 if (do_cancel)
70700 do_cancel(op);
70701@@ -341,7 +341,7 @@ void fscache_cancel_all_ops(struct fscache_object *object)
70702 while (!list_empty(&object->pending_ops)) {
70703 op = list_entry(object->pending_ops.next,
70704 struct fscache_operation, pend_link);
70705- fscache_stat(&fscache_n_op_cancelled);
70706+ fscache_stat_unchecked(&fscache_n_op_cancelled);
70707 list_del_init(&op->pend_link);
70708
70709 ASSERTCMP(op->state, ==, FSCACHE_OP_ST_PENDING);
70710@@ -413,7 +413,7 @@ void fscache_put_operation(struct fscache_operation *op)
70711 op->state, ==, FSCACHE_OP_ST_CANCELLED);
70712 op->state = FSCACHE_OP_ST_DEAD;
70713
70714- fscache_stat(&fscache_n_op_release);
70715+ fscache_stat_unchecked(&fscache_n_op_release);
70716
70717 if (op->release) {
70718 op->release(op);
70719@@ -432,7 +432,7 @@ void fscache_put_operation(struct fscache_operation *op)
70720 * lock, and defer it otherwise */
70721 if (!spin_trylock(&object->lock)) {
70722 _debug("defer put");
70723- fscache_stat(&fscache_n_op_deferred_release);
70724+ fscache_stat_unchecked(&fscache_n_op_deferred_release);
70725
70726 cache = object->cache;
70727 spin_lock(&cache->op_gc_list_lock);
70728@@ -485,7 +485,7 @@ void fscache_operation_gc(struct work_struct *work)
70729
70730 _debug("GC DEFERRED REL OBJ%x OP%x",
70731 object->debug_id, op->debug_id);
70732- fscache_stat(&fscache_n_op_gc);
70733+ fscache_stat_unchecked(&fscache_n_op_gc);
70734
70735 ASSERTCMP(atomic_read(&op->usage), ==, 0);
70736 ASSERTCMP(op->state, ==, FSCACHE_OP_ST_DEAD);
70737diff --git a/fs/fscache/page.c b/fs/fscache/page.c
70738index de33b3f..8be4d29 100644
70739--- a/fs/fscache/page.c
70740+++ b/fs/fscache/page.c
70741@@ -74,7 +74,7 @@ try_again:
70742 val = radix_tree_lookup(&cookie->stores, page->index);
70743 if (!val) {
70744 rcu_read_unlock();
70745- fscache_stat(&fscache_n_store_vmscan_not_storing);
70746+ fscache_stat_unchecked(&fscache_n_store_vmscan_not_storing);
70747 __fscache_uncache_page(cookie, page);
70748 return true;
70749 }
70750@@ -104,11 +104,11 @@ try_again:
70751 spin_unlock(&cookie->stores_lock);
70752
70753 if (xpage) {
70754- fscache_stat(&fscache_n_store_vmscan_cancelled);
70755- fscache_stat(&fscache_n_store_radix_deletes);
70756+ fscache_stat_unchecked(&fscache_n_store_vmscan_cancelled);
70757+ fscache_stat_unchecked(&fscache_n_store_radix_deletes);
70758 ASSERTCMP(xpage, ==, page);
70759 } else {
70760- fscache_stat(&fscache_n_store_vmscan_gone);
70761+ fscache_stat_unchecked(&fscache_n_store_vmscan_gone);
70762 }
70763
70764 wake_up_bit(&cookie->flags, 0);
70765@@ -123,11 +123,11 @@ page_busy:
70766 * sleeping on memory allocation, so we may need to impose a timeout
70767 * too. */
70768 if (!(gfp & __GFP_WAIT) || !(gfp & __GFP_FS)) {
70769- fscache_stat(&fscache_n_store_vmscan_busy);
70770+ fscache_stat_unchecked(&fscache_n_store_vmscan_busy);
70771 return false;
70772 }
70773
70774- fscache_stat(&fscache_n_store_vmscan_wait);
70775+ fscache_stat_unchecked(&fscache_n_store_vmscan_wait);
70776 if (!release_page_wait_timeout(cookie, page))
70777 _debug("fscache writeout timeout page: %p{%lx}",
70778 page, page->index);
70779@@ -156,7 +156,7 @@ static void fscache_end_page_write(struct fscache_object *object,
70780 FSCACHE_COOKIE_STORING_TAG);
70781 if (!radix_tree_tag_get(&cookie->stores, page->index,
70782 FSCACHE_COOKIE_PENDING_TAG)) {
70783- fscache_stat(&fscache_n_store_radix_deletes);
70784+ fscache_stat_unchecked(&fscache_n_store_radix_deletes);
70785 xpage = radix_tree_delete(&cookie->stores, page->index);
70786 }
70787 spin_unlock(&cookie->stores_lock);
70788@@ -177,7 +177,7 @@ static void fscache_attr_changed_op(struct fscache_operation *op)
70789
70790 _enter("{OBJ%x OP%x}", object->debug_id, op->debug_id);
70791
70792- fscache_stat(&fscache_n_attr_changed_calls);
70793+ fscache_stat_unchecked(&fscache_n_attr_changed_calls);
70794
70795 if (fscache_object_is_active(object)) {
70796 fscache_stat(&fscache_n_cop_attr_changed);
70797@@ -204,11 +204,11 @@ int __fscache_attr_changed(struct fscache_cookie *cookie)
70798
70799 ASSERTCMP(cookie->def->type, !=, FSCACHE_COOKIE_TYPE_INDEX);
70800
70801- fscache_stat(&fscache_n_attr_changed);
70802+ fscache_stat_unchecked(&fscache_n_attr_changed);
70803
70804 op = kzalloc(sizeof(*op), GFP_KERNEL);
70805 if (!op) {
70806- fscache_stat(&fscache_n_attr_changed_nomem);
70807+ fscache_stat_unchecked(&fscache_n_attr_changed_nomem);
70808 _leave(" = -ENOMEM");
70809 return -ENOMEM;
70810 }
70811@@ -230,7 +230,7 @@ int __fscache_attr_changed(struct fscache_cookie *cookie)
70812 if (fscache_submit_exclusive_op(object, op) < 0)
70813 goto nobufs_dec;
70814 spin_unlock(&cookie->lock);
70815- fscache_stat(&fscache_n_attr_changed_ok);
70816+ fscache_stat_unchecked(&fscache_n_attr_changed_ok);
70817 fscache_put_operation(op);
70818 _leave(" = 0");
70819 return 0;
70820@@ -242,7 +242,7 @@ nobufs:
70821 kfree(op);
70822 if (wake_cookie)
70823 __fscache_wake_unused_cookie(cookie);
70824- fscache_stat(&fscache_n_attr_changed_nobufs);
70825+ fscache_stat_unchecked(&fscache_n_attr_changed_nobufs);
70826 _leave(" = %d", -ENOBUFS);
70827 return -ENOBUFS;
70828 }
70829@@ -281,7 +281,7 @@ static struct fscache_retrieval *fscache_alloc_retrieval(
70830 /* allocate a retrieval operation and attempt to submit it */
70831 op = kzalloc(sizeof(*op), GFP_NOIO);
70832 if (!op) {
70833- fscache_stat(&fscache_n_retrievals_nomem);
70834+ fscache_stat_unchecked(&fscache_n_retrievals_nomem);
70835 return NULL;
70836 }
70837
70838@@ -311,12 +311,12 @@ int fscache_wait_for_deferred_lookup(struct fscache_cookie *cookie)
70839 return 0;
70840 }
70841
70842- fscache_stat(&fscache_n_retrievals_wait);
70843+ fscache_stat_unchecked(&fscache_n_retrievals_wait);
70844
70845 jif = jiffies;
70846 if (wait_on_bit(&cookie->flags, FSCACHE_COOKIE_LOOKING_UP,
70847 TASK_INTERRUPTIBLE) != 0) {
70848- fscache_stat(&fscache_n_retrievals_intr);
70849+ fscache_stat_unchecked(&fscache_n_retrievals_intr);
70850 _leave(" = -ERESTARTSYS");
70851 return -ERESTARTSYS;
70852 }
70853@@ -345,8 +345,8 @@ static void fscache_do_cancel_retrieval(struct fscache_operation *_op)
70854 */
70855 int fscache_wait_for_operation_activation(struct fscache_object *object,
70856 struct fscache_operation *op,
70857- atomic_t *stat_op_waits,
70858- atomic_t *stat_object_dead,
70859+ atomic_unchecked_t *stat_op_waits,
70860+ atomic_unchecked_t *stat_object_dead,
70861 void (*do_cancel)(struct fscache_operation *))
70862 {
70863 int ret;
70864@@ -356,7 +356,7 @@ int fscache_wait_for_operation_activation(struct fscache_object *object,
70865
70866 _debug(">>> WT");
70867 if (stat_op_waits)
70868- fscache_stat(stat_op_waits);
70869+ fscache_stat_unchecked(stat_op_waits);
70870 if (wait_on_bit(&op->flags, FSCACHE_OP_WAITING,
70871 TASK_INTERRUPTIBLE) != 0) {
70872 ret = fscache_cancel_op(op, do_cancel);
70873@@ -373,7 +373,7 @@ int fscache_wait_for_operation_activation(struct fscache_object *object,
70874 check_if_dead:
70875 if (op->state == FSCACHE_OP_ST_CANCELLED) {
70876 if (stat_object_dead)
70877- fscache_stat(stat_object_dead);
70878+ fscache_stat_unchecked(stat_object_dead);
70879 _leave(" = -ENOBUFS [cancelled]");
70880 return -ENOBUFS;
70881 }
70882@@ -381,7 +381,7 @@ check_if_dead:
70883 pr_err("%s() = -ENOBUFS [obj dead %d]\n", __func__, op->state);
70884 fscache_cancel_op(op, do_cancel);
70885 if (stat_object_dead)
70886- fscache_stat(stat_object_dead);
70887+ fscache_stat_unchecked(stat_object_dead);
70888 return -ENOBUFS;
70889 }
70890 return 0;
70891@@ -409,7 +409,7 @@ int __fscache_read_or_alloc_page(struct fscache_cookie *cookie,
70892
70893 _enter("%p,%p,,,", cookie, page);
70894
70895- fscache_stat(&fscache_n_retrievals);
70896+ fscache_stat_unchecked(&fscache_n_retrievals);
70897
70898 if (hlist_empty(&cookie->backing_objects))
70899 goto nobufs;
70900@@ -451,7 +451,7 @@ int __fscache_read_or_alloc_page(struct fscache_cookie *cookie,
70901 goto nobufs_unlock_dec;
70902 spin_unlock(&cookie->lock);
70903
70904- fscache_stat(&fscache_n_retrieval_ops);
70905+ fscache_stat_unchecked(&fscache_n_retrieval_ops);
70906
70907 /* pin the netfs read context in case we need to do the actual netfs
70908 * read because we've encountered a cache read failure */
70909@@ -482,15 +482,15 @@ int __fscache_read_or_alloc_page(struct fscache_cookie *cookie,
70910
70911 error:
70912 if (ret == -ENOMEM)
70913- fscache_stat(&fscache_n_retrievals_nomem);
70914+ fscache_stat_unchecked(&fscache_n_retrievals_nomem);
70915 else if (ret == -ERESTARTSYS)
70916- fscache_stat(&fscache_n_retrievals_intr);
70917+ fscache_stat_unchecked(&fscache_n_retrievals_intr);
70918 else if (ret == -ENODATA)
70919- fscache_stat(&fscache_n_retrievals_nodata);
70920+ fscache_stat_unchecked(&fscache_n_retrievals_nodata);
70921 else if (ret < 0)
70922- fscache_stat(&fscache_n_retrievals_nobufs);
70923+ fscache_stat_unchecked(&fscache_n_retrievals_nobufs);
70924 else
70925- fscache_stat(&fscache_n_retrievals_ok);
70926+ fscache_stat_unchecked(&fscache_n_retrievals_ok);
70927
70928 fscache_put_retrieval(op);
70929 _leave(" = %d", ret);
70930@@ -505,7 +505,7 @@ nobufs_unlock:
70931 __fscache_wake_unused_cookie(cookie);
70932 kfree(op);
70933 nobufs:
70934- fscache_stat(&fscache_n_retrievals_nobufs);
70935+ fscache_stat_unchecked(&fscache_n_retrievals_nobufs);
70936 _leave(" = -ENOBUFS");
70937 return -ENOBUFS;
70938 }
70939@@ -544,7 +544,7 @@ int __fscache_read_or_alloc_pages(struct fscache_cookie *cookie,
70940
70941 _enter("%p,,%d,,,", cookie, *nr_pages);
70942
70943- fscache_stat(&fscache_n_retrievals);
70944+ fscache_stat_unchecked(&fscache_n_retrievals);
70945
70946 if (hlist_empty(&cookie->backing_objects))
70947 goto nobufs;
70948@@ -582,7 +582,7 @@ int __fscache_read_or_alloc_pages(struct fscache_cookie *cookie,
70949 goto nobufs_unlock_dec;
70950 spin_unlock(&cookie->lock);
70951
70952- fscache_stat(&fscache_n_retrieval_ops);
70953+ fscache_stat_unchecked(&fscache_n_retrieval_ops);
70954
70955 /* pin the netfs read context in case we need to do the actual netfs
70956 * read because we've encountered a cache read failure */
70957@@ -613,15 +613,15 @@ int __fscache_read_or_alloc_pages(struct fscache_cookie *cookie,
70958
70959 error:
70960 if (ret == -ENOMEM)
70961- fscache_stat(&fscache_n_retrievals_nomem);
70962+ fscache_stat_unchecked(&fscache_n_retrievals_nomem);
70963 else if (ret == -ERESTARTSYS)
70964- fscache_stat(&fscache_n_retrievals_intr);
70965+ fscache_stat_unchecked(&fscache_n_retrievals_intr);
70966 else if (ret == -ENODATA)
70967- fscache_stat(&fscache_n_retrievals_nodata);
70968+ fscache_stat_unchecked(&fscache_n_retrievals_nodata);
70969 else if (ret < 0)
70970- fscache_stat(&fscache_n_retrievals_nobufs);
70971+ fscache_stat_unchecked(&fscache_n_retrievals_nobufs);
70972 else
70973- fscache_stat(&fscache_n_retrievals_ok);
70974+ fscache_stat_unchecked(&fscache_n_retrievals_ok);
70975
70976 fscache_put_retrieval(op);
70977 _leave(" = %d", ret);
70978@@ -636,7 +636,7 @@ nobufs_unlock:
70979 if (wake_cookie)
70980 __fscache_wake_unused_cookie(cookie);
70981 nobufs:
70982- fscache_stat(&fscache_n_retrievals_nobufs);
70983+ fscache_stat_unchecked(&fscache_n_retrievals_nobufs);
70984 _leave(" = -ENOBUFS");
70985 return -ENOBUFS;
70986 }
70987@@ -661,7 +661,7 @@ int __fscache_alloc_page(struct fscache_cookie *cookie,
70988
70989 _enter("%p,%p,,,", cookie, page);
70990
70991- fscache_stat(&fscache_n_allocs);
70992+ fscache_stat_unchecked(&fscache_n_allocs);
70993
70994 if (hlist_empty(&cookie->backing_objects))
70995 goto nobufs;
70996@@ -695,7 +695,7 @@ int __fscache_alloc_page(struct fscache_cookie *cookie,
70997 goto nobufs_unlock_dec;
70998 spin_unlock(&cookie->lock);
70999
71000- fscache_stat(&fscache_n_alloc_ops);
71001+ fscache_stat_unchecked(&fscache_n_alloc_ops);
71002
71003 ret = fscache_wait_for_operation_activation(
71004 object, &op->op,
71005@@ -712,11 +712,11 @@ int __fscache_alloc_page(struct fscache_cookie *cookie,
71006
71007 error:
71008 if (ret == -ERESTARTSYS)
71009- fscache_stat(&fscache_n_allocs_intr);
71010+ fscache_stat_unchecked(&fscache_n_allocs_intr);
71011 else if (ret < 0)
71012- fscache_stat(&fscache_n_allocs_nobufs);
71013+ fscache_stat_unchecked(&fscache_n_allocs_nobufs);
71014 else
71015- fscache_stat(&fscache_n_allocs_ok);
71016+ fscache_stat_unchecked(&fscache_n_allocs_ok);
71017
71018 fscache_put_retrieval(op);
71019 _leave(" = %d", ret);
71020@@ -730,7 +730,7 @@ nobufs_unlock:
71021 if (wake_cookie)
71022 __fscache_wake_unused_cookie(cookie);
71023 nobufs:
71024- fscache_stat(&fscache_n_allocs_nobufs);
71025+ fscache_stat_unchecked(&fscache_n_allocs_nobufs);
71026 _leave(" = -ENOBUFS");
71027 return -ENOBUFS;
71028 }
71029@@ -806,7 +806,7 @@ static void fscache_write_op(struct fscache_operation *_op)
71030
71031 spin_lock(&cookie->stores_lock);
71032
71033- fscache_stat(&fscache_n_store_calls);
71034+ fscache_stat_unchecked(&fscache_n_store_calls);
71035
71036 /* find a page to store */
71037 page = NULL;
71038@@ -817,7 +817,7 @@ static void fscache_write_op(struct fscache_operation *_op)
71039 page = results[0];
71040 _debug("gang %d [%lx]", n, page->index);
71041 if (page->index > op->store_limit) {
71042- fscache_stat(&fscache_n_store_pages_over_limit);
71043+ fscache_stat_unchecked(&fscache_n_store_pages_over_limit);
71044 goto superseded;
71045 }
71046
71047@@ -829,7 +829,7 @@ static void fscache_write_op(struct fscache_operation *_op)
71048 spin_unlock(&cookie->stores_lock);
71049 spin_unlock(&object->lock);
71050
71051- fscache_stat(&fscache_n_store_pages);
71052+ fscache_stat_unchecked(&fscache_n_store_pages);
71053 fscache_stat(&fscache_n_cop_write_page);
71054 ret = object->cache->ops->write_page(op, page);
71055 fscache_stat_d(&fscache_n_cop_write_page);
71056@@ -933,7 +933,7 @@ int __fscache_write_page(struct fscache_cookie *cookie,
71057 ASSERTCMP(cookie->def->type, !=, FSCACHE_COOKIE_TYPE_INDEX);
71058 ASSERT(PageFsCache(page));
71059
71060- fscache_stat(&fscache_n_stores);
71061+ fscache_stat_unchecked(&fscache_n_stores);
71062
71063 if (test_bit(FSCACHE_COOKIE_INVALIDATING, &cookie->flags)) {
71064 _leave(" = -ENOBUFS [invalidating]");
71065@@ -992,7 +992,7 @@ int __fscache_write_page(struct fscache_cookie *cookie,
71066 spin_unlock(&cookie->stores_lock);
71067 spin_unlock(&object->lock);
71068
71069- op->op.debug_id = atomic_inc_return(&fscache_op_debug_id);
71070+ op->op.debug_id = atomic_inc_return_unchecked(&fscache_op_debug_id);
71071 op->store_limit = object->store_limit;
71072
71073 __fscache_use_cookie(cookie);
71074@@ -1001,8 +1001,8 @@ int __fscache_write_page(struct fscache_cookie *cookie,
71075
71076 spin_unlock(&cookie->lock);
71077 radix_tree_preload_end();
71078- fscache_stat(&fscache_n_store_ops);
71079- fscache_stat(&fscache_n_stores_ok);
71080+ fscache_stat_unchecked(&fscache_n_store_ops);
71081+ fscache_stat_unchecked(&fscache_n_stores_ok);
71082
71083 /* the work queue now carries its own ref on the object */
71084 fscache_put_operation(&op->op);
71085@@ -1010,14 +1010,14 @@ int __fscache_write_page(struct fscache_cookie *cookie,
71086 return 0;
71087
71088 already_queued:
71089- fscache_stat(&fscache_n_stores_again);
71090+ fscache_stat_unchecked(&fscache_n_stores_again);
71091 already_pending:
71092 spin_unlock(&cookie->stores_lock);
71093 spin_unlock(&object->lock);
71094 spin_unlock(&cookie->lock);
71095 radix_tree_preload_end();
71096 kfree(op);
71097- fscache_stat(&fscache_n_stores_ok);
71098+ fscache_stat_unchecked(&fscache_n_stores_ok);
71099 _leave(" = 0");
71100 return 0;
71101
71102@@ -1039,14 +1039,14 @@ nobufs:
71103 kfree(op);
71104 if (wake_cookie)
71105 __fscache_wake_unused_cookie(cookie);
71106- fscache_stat(&fscache_n_stores_nobufs);
71107+ fscache_stat_unchecked(&fscache_n_stores_nobufs);
71108 _leave(" = -ENOBUFS");
71109 return -ENOBUFS;
71110
71111 nomem_free:
71112 kfree(op);
71113 nomem:
71114- fscache_stat(&fscache_n_stores_oom);
71115+ fscache_stat_unchecked(&fscache_n_stores_oom);
71116 _leave(" = -ENOMEM");
71117 return -ENOMEM;
71118 }
71119@@ -1064,7 +1064,7 @@ void __fscache_uncache_page(struct fscache_cookie *cookie, struct page *page)
71120 ASSERTCMP(cookie->def->type, !=, FSCACHE_COOKIE_TYPE_INDEX);
71121 ASSERTCMP(page, !=, NULL);
71122
71123- fscache_stat(&fscache_n_uncaches);
71124+ fscache_stat_unchecked(&fscache_n_uncaches);
71125
71126 /* cache withdrawal may beat us to it */
71127 if (!PageFsCache(page))
71128@@ -1115,7 +1115,7 @@ void fscache_mark_page_cached(struct fscache_retrieval *op, struct page *page)
71129 struct fscache_cookie *cookie = op->op.object->cookie;
71130
71131 #ifdef CONFIG_FSCACHE_STATS
71132- atomic_inc(&fscache_n_marks);
71133+ atomic_inc_unchecked(&fscache_n_marks);
71134 #endif
71135
71136 _debug("- mark %p{%lx}", page, page->index);
71137diff --git a/fs/fscache/stats.c b/fs/fscache/stats.c
71138index 40d13c7..ddf52b9 100644
71139--- a/fs/fscache/stats.c
71140+++ b/fs/fscache/stats.c
71141@@ -18,99 +18,99 @@
71142 /*
71143 * operation counters
71144 */
71145-atomic_t fscache_n_op_pend;
71146-atomic_t fscache_n_op_run;
71147-atomic_t fscache_n_op_enqueue;
71148-atomic_t fscache_n_op_requeue;
71149-atomic_t fscache_n_op_deferred_release;
71150-atomic_t fscache_n_op_release;
71151-atomic_t fscache_n_op_gc;
71152-atomic_t fscache_n_op_cancelled;
71153-atomic_t fscache_n_op_rejected;
71154+atomic_unchecked_t fscache_n_op_pend;
71155+atomic_unchecked_t fscache_n_op_run;
71156+atomic_unchecked_t fscache_n_op_enqueue;
71157+atomic_unchecked_t fscache_n_op_requeue;
71158+atomic_unchecked_t fscache_n_op_deferred_release;
71159+atomic_unchecked_t fscache_n_op_release;
71160+atomic_unchecked_t fscache_n_op_gc;
71161+atomic_unchecked_t fscache_n_op_cancelled;
71162+atomic_unchecked_t fscache_n_op_rejected;
71163
71164-atomic_t fscache_n_attr_changed;
71165-atomic_t fscache_n_attr_changed_ok;
71166-atomic_t fscache_n_attr_changed_nobufs;
71167-atomic_t fscache_n_attr_changed_nomem;
71168-atomic_t fscache_n_attr_changed_calls;
71169+atomic_unchecked_t fscache_n_attr_changed;
71170+atomic_unchecked_t fscache_n_attr_changed_ok;
71171+atomic_unchecked_t fscache_n_attr_changed_nobufs;
71172+atomic_unchecked_t fscache_n_attr_changed_nomem;
71173+atomic_unchecked_t fscache_n_attr_changed_calls;
71174
71175-atomic_t fscache_n_allocs;
71176-atomic_t fscache_n_allocs_ok;
71177-atomic_t fscache_n_allocs_wait;
71178-atomic_t fscache_n_allocs_nobufs;
71179-atomic_t fscache_n_allocs_intr;
71180-atomic_t fscache_n_allocs_object_dead;
71181-atomic_t fscache_n_alloc_ops;
71182-atomic_t fscache_n_alloc_op_waits;
71183+atomic_unchecked_t fscache_n_allocs;
71184+atomic_unchecked_t fscache_n_allocs_ok;
71185+atomic_unchecked_t fscache_n_allocs_wait;
71186+atomic_unchecked_t fscache_n_allocs_nobufs;
71187+atomic_unchecked_t fscache_n_allocs_intr;
71188+atomic_unchecked_t fscache_n_allocs_object_dead;
71189+atomic_unchecked_t fscache_n_alloc_ops;
71190+atomic_unchecked_t fscache_n_alloc_op_waits;
71191
71192-atomic_t fscache_n_retrievals;
71193-atomic_t fscache_n_retrievals_ok;
71194-atomic_t fscache_n_retrievals_wait;
71195-atomic_t fscache_n_retrievals_nodata;
71196-atomic_t fscache_n_retrievals_nobufs;
71197-atomic_t fscache_n_retrievals_intr;
71198-atomic_t fscache_n_retrievals_nomem;
71199-atomic_t fscache_n_retrievals_object_dead;
71200-atomic_t fscache_n_retrieval_ops;
71201-atomic_t fscache_n_retrieval_op_waits;
71202+atomic_unchecked_t fscache_n_retrievals;
71203+atomic_unchecked_t fscache_n_retrievals_ok;
71204+atomic_unchecked_t fscache_n_retrievals_wait;
71205+atomic_unchecked_t fscache_n_retrievals_nodata;
71206+atomic_unchecked_t fscache_n_retrievals_nobufs;
71207+atomic_unchecked_t fscache_n_retrievals_intr;
71208+atomic_unchecked_t fscache_n_retrievals_nomem;
71209+atomic_unchecked_t fscache_n_retrievals_object_dead;
71210+atomic_unchecked_t fscache_n_retrieval_ops;
71211+atomic_unchecked_t fscache_n_retrieval_op_waits;
71212
71213-atomic_t fscache_n_stores;
71214-atomic_t fscache_n_stores_ok;
71215-atomic_t fscache_n_stores_again;
71216-atomic_t fscache_n_stores_nobufs;
71217-atomic_t fscache_n_stores_oom;
71218-atomic_t fscache_n_store_ops;
71219-atomic_t fscache_n_store_calls;
71220-atomic_t fscache_n_store_pages;
71221-atomic_t fscache_n_store_radix_deletes;
71222-atomic_t fscache_n_store_pages_over_limit;
71223+atomic_unchecked_t fscache_n_stores;
71224+atomic_unchecked_t fscache_n_stores_ok;
71225+atomic_unchecked_t fscache_n_stores_again;
71226+atomic_unchecked_t fscache_n_stores_nobufs;
71227+atomic_unchecked_t fscache_n_stores_oom;
71228+atomic_unchecked_t fscache_n_store_ops;
71229+atomic_unchecked_t fscache_n_store_calls;
71230+atomic_unchecked_t fscache_n_store_pages;
71231+atomic_unchecked_t fscache_n_store_radix_deletes;
71232+atomic_unchecked_t fscache_n_store_pages_over_limit;
71233
71234-atomic_t fscache_n_store_vmscan_not_storing;
71235-atomic_t fscache_n_store_vmscan_gone;
71236-atomic_t fscache_n_store_vmscan_busy;
71237-atomic_t fscache_n_store_vmscan_cancelled;
71238-atomic_t fscache_n_store_vmscan_wait;
71239+atomic_unchecked_t fscache_n_store_vmscan_not_storing;
71240+atomic_unchecked_t fscache_n_store_vmscan_gone;
71241+atomic_unchecked_t fscache_n_store_vmscan_busy;
71242+atomic_unchecked_t fscache_n_store_vmscan_cancelled;
71243+atomic_unchecked_t fscache_n_store_vmscan_wait;
71244
71245-atomic_t fscache_n_marks;
71246-atomic_t fscache_n_uncaches;
71247+atomic_unchecked_t fscache_n_marks;
71248+atomic_unchecked_t fscache_n_uncaches;
71249
71250-atomic_t fscache_n_acquires;
71251-atomic_t fscache_n_acquires_null;
71252-atomic_t fscache_n_acquires_no_cache;
71253-atomic_t fscache_n_acquires_ok;
71254-atomic_t fscache_n_acquires_nobufs;
71255-atomic_t fscache_n_acquires_oom;
71256+atomic_unchecked_t fscache_n_acquires;
71257+atomic_unchecked_t fscache_n_acquires_null;
71258+atomic_unchecked_t fscache_n_acquires_no_cache;
71259+atomic_unchecked_t fscache_n_acquires_ok;
71260+atomic_unchecked_t fscache_n_acquires_nobufs;
71261+atomic_unchecked_t fscache_n_acquires_oom;
71262
71263-atomic_t fscache_n_invalidates;
71264-atomic_t fscache_n_invalidates_run;
71265+atomic_unchecked_t fscache_n_invalidates;
71266+atomic_unchecked_t fscache_n_invalidates_run;
71267
71268-atomic_t fscache_n_updates;
71269-atomic_t fscache_n_updates_null;
71270-atomic_t fscache_n_updates_run;
71271+atomic_unchecked_t fscache_n_updates;
71272+atomic_unchecked_t fscache_n_updates_null;
71273+atomic_unchecked_t fscache_n_updates_run;
71274
71275-atomic_t fscache_n_relinquishes;
71276-atomic_t fscache_n_relinquishes_null;
71277-atomic_t fscache_n_relinquishes_waitcrt;
71278-atomic_t fscache_n_relinquishes_retire;
71279+atomic_unchecked_t fscache_n_relinquishes;
71280+atomic_unchecked_t fscache_n_relinquishes_null;
71281+atomic_unchecked_t fscache_n_relinquishes_waitcrt;
71282+atomic_unchecked_t fscache_n_relinquishes_retire;
71283
71284-atomic_t fscache_n_cookie_index;
71285-atomic_t fscache_n_cookie_data;
71286-atomic_t fscache_n_cookie_special;
71287+atomic_unchecked_t fscache_n_cookie_index;
71288+atomic_unchecked_t fscache_n_cookie_data;
71289+atomic_unchecked_t fscache_n_cookie_special;
71290
71291-atomic_t fscache_n_object_alloc;
71292-atomic_t fscache_n_object_no_alloc;
71293-atomic_t fscache_n_object_lookups;
71294-atomic_t fscache_n_object_lookups_negative;
71295-atomic_t fscache_n_object_lookups_positive;
71296-atomic_t fscache_n_object_lookups_timed_out;
71297-atomic_t fscache_n_object_created;
71298-atomic_t fscache_n_object_avail;
71299-atomic_t fscache_n_object_dead;
71300+atomic_unchecked_t fscache_n_object_alloc;
71301+atomic_unchecked_t fscache_n_object_no_alloc;
71302+atomic_unchecked_t fscache_n_object_lookups;
71303+atomic_unchecked_t fscache_n_object_lookups_negative;
71304+atomic_unchecked_t fscache_n_object_lookups_positive;
71305+atomic_unchecked_t fscache_n_object_lookups_timed_out;
71306+atomic_unchecked_t fscache_n_object_created;
71307+atomic_unchecked_t fscache_n_object_avail;
71308+atomic_unchecked_t fscache_n_object_dead;
71309
71310-atomic_t fscache_n_checkaux_none;
71311-atomic_t fscache_n_checkaux_okay;
71312-atomic_t fscache_n_checkaux_update;
71313-atomic_t fscache_n_checkaux_obsolete;
71314+atomic_unchecked_t fscache_n_checkaux_none;
71315+atomic_unchecked_t fscache_n_checkaux_okay;
71316+atomic_unchecked_t fscache_n_checkaux_update;
71317+atomic_unchecked_t fscache_n_checkaux_obsolete;
71318
71319 atomic_t fscache_n_cop_alloc_object;
71320 atomic_t fscache_n_cop_lookup_object;
71321@@ -138,118 +138,118 @@ static int fscache_stats_show(struct seq_file *m, void *v)
71322 seq_puts(m, "FS-Cache statistics\n");
71323
71324 seq_printf(m, "Cookies: idx=%u dat=%u spc=%u\n",
71325- atomic_read(&fscache_n_cookie_index),
71326- atomic_read(&fscache_n_cookie_data),
71327- atomic_read(&fscache_n_cookie_special));
71328+ atomic_read_unchecked(&fscache_n_cookie_index),
71329+ atomic_read_unchecked(&fscache_n_cookie_data),
71330+ atomic_read_unchecked(&fscache_n_cookie_special));
71331
71332 seq_printf(m, "Objects: alc=%u nal=%u avl=%u ded=%u\n",
71333- atomic_read(&fscache_n_object_alloc),
71334- atomic_read(&fscache_n_object_no_alloc),
71335- atomic_read(&fscache_n_object_avail),
71336- atomic_read(&fscache_n_object_dead));
71337+ atomic_read_unchecked(&fscache_n_object_alloc),
71338+ atomic_read_unchecked(&fscache_n_object_no_alloc),
71339+ atomic_read_unchecked(&fscache_n_object_avail),
71340+ atomic_read_unchecked(&fscache_n_object_dead));
71341 seq_printf(m, "ChkAux : non=%u ok=%u upd=%u obs=%u\n",
71342- atomic_read(&fscache_n_checkaux_none),
71343- atomic_read(&fscache_n_checkaux_okay),
71344- atomic_read(&fscache_n_checkaux_update),
71345- atomic_read(&fscache_n_checkaux_obsolete));
71346+ atomic_read_unchecked(&fscache_n_checkaux_none),
71347+ atomic_read_unchecked(&fscache_n_checkaux_okay),
71348+ atomic_read_unchecked(&fscache_n_checkaux_update),
71349+ atomic_read_unchecked(&fscache_n_checkaux_obsolete));
71350
71351 seq_printf(m, "Pages : mrk=%u unc=%u\n",
71352- atomic_read(&fscache_n_marks),
71353- atomic_read(&fscache_n_uncaches));
71354+ atomic_read_unchecked(&fscache_n_marks),
71355+ atomic_read_unchecked(&fscache_n_uncaches));
71356
71357 seq_printf(m, "Acquire: n=%u nul=%u noc=%u ok=%u nbf=%u"
71358 " oom=%u\n",
71359- atomic_read(&fscache_n_acquires),
71360- atomic_read(&fscache_n_acquires_null),
71361- atomic_read(&fscache_n_acquires_no_cache),
71362- atomic_read(&fscache_n_acquires_ok),
71363- atomic_read(&fscache_n_acquires_nobufs),
71364- atomic_read(&fscache_n_acquires_oom));
71365+ atomic_read_unchecked(&fscache_n_acquires),
71366+ atomic_read_unchecked(&fscache_n_acquires_null),
71367+ atomic_read_unchecked(&fscache_n_acquires_no_cache),
71368+ atomic_read_unchecked(&fscache_n_acquires_ok),
71369+ atomic_read_unchecked(&fscache_n_acquires_nobufs),
71370+ atomic_read_unchecked(&fscache_n_acquires_oom));
71371
71372 seq_printf(m, "Lookups: n=%u neg=%u pos=%u crt=%u tmo=%u\n",
71373- atomic_read(&fscache_n_object_lookups),
71374- atomic_read(&fscache_n_object_lookups_negative),
71375- atomic_read(&fscache_n_object_lookups_positive),
71376- atomic_read(&fscache_n_object_created),
71377- atomic_read(&fscache_n_object_lookups_timed_out));
71378+ atomic_read_unchecked(&fscache_n_object_lookups),
71379+ atomic_read_unchecked(&fscache_n_object_lookups_negative),
71380+ atomic_read_unchecked(&fscache_n_object_lookups_positive),
71381+ atomic_read_unchecked(&fscache_n_object_created),
71382+ atomic_read_unchecked(&fscache_n_object_lookups_timed_out));
71383
71384 seq_printf(m, "Invals : n=%u run=%u\n",
71385- atomic_read(&fscache_n_invalidates),
71386- atomic_read(&fscache_n_invalidates_run));
71387+ atomic_read_unchecked(&fscache_n_invalidates),
71388+ atomic_read_unchecked(&fscache_n_invalidates_run));
71389
71390 seq_printf(m, "Updates: n=%u nul=%u run=%u\n",
71391- atomic_read(&fscache_n_updates),
71392- atomic_read(&fscache_n_updates_null),
71393- atomic_read(&fscache_n_updates_run));
71394+ atomic_read_unchecked(&fscache_n_updates),
71395+ atomic_read_unchecked(&fscache_n_updates_null),
71396+ atomic_read_unchecked(&fscache_n_updates_run));
71397
71398 seq_printf(m, "Relinqs: n=%u nul=%u wcr=%u rtr=%u\n",
71399- atomic_read(&fscache_n_relinquishes),
71400- atomic_read(&fscache_n_relinquishes_null),
71401- atomic_read(&fscache_n_relinquishes_waitcrt),
71402- atomic_read(&fscache_n_relinquishes_retire));
71403+ atomic_read_unchecked(&fscache_n_relinquishes),
71404+ atomic_read_unchecked(&fscache_n_relinquishes_null),
71405+ atomic_read_unchecked(&fscache_n_relinquishes_waitcrt),
71406+ atomic_read_unchecked(&fscache_n_relinquishes_retire));
71407
71408 seq_printf(m, "AttrChg: n=%u ok=%u nbf=%u oom=%u run=%u\n",
71409- atomic_read(&fscache_n_attr_changed),
71410- atomic_read(&fscache_n_attr_changed_ok),
71411- atomic_read(&fscache_n_attr_changed_nobufs),
71412- atomic_read(&fscache_n_attr_changed_nomem),
71413- atomic_read(&fscache_n_attr_changed_calls));
71414+ atomic_read_unchecked(&fscache_n_attr_changed),
71415+ atomic_read_unchecked(&fscache_n_attr_changed_ok),
71416+ atomic_read_unchecked(&fscache_n_attr_changed_nobufs),
71417+ atomic_read_unchecked(&fscache_n_attr_changed_nomem),
71418+ atomic_read_unchecked(&fscache_n_attr_changed_calls));
71419
71420 seq_printf(m, "Allocs : n=%u ok=%u wt=%u nbf=%u int=%u\n",
71421- atomic_read(&fscache_n_allocs),
71422- atomic_read(&fscache_n_allocs_ok),
71423- atomic_read(&fscache_n_allocs_wait),
71424- atomic_read(&fscache_n_allocs_nobufs),
71425- atomic_read(&fscache_n_allocs_intr));
71426+ atomic_read_unchecked(&fscache_n_allocs),
71427+ atomic_read_unchecked(&fscache_n_allocs_ok),
71428+ atomic_read_unchecked(&fscache_n_allocs_wait),
71429+ atomic_read_unchecked(&fscache_n_allocs_nobufs),
71430+ atomic_read_unchecked(&fscache_n_allocs_intr));
71431 seq_printf(m, "Allocs : ops=%u owt=%u abt=%u\n",
71432- atomic_read(&fscache_n_alloc_ops),
71433- atomic_read(&fscache_n_alloc_op_waits),
71434- atomic_read(&fscache_n_allocs_object_dead));
71435+ atomic_read_unchecked(&fscache_n_alloc_ops),
71436+ atomic_read_unchecked(&fscache_n_alloc_op_waits),
71437+ atomic_read_unchecked(&fscache_n_allocs_object_dead));
71438
71439 seq_printf(m, "Retrvls: n=%u ok=%u wt=%u nod=%u nbf=%u"
71440 " int=%u oom=%u\n",
71441- atomic_read(&fscache_n_retrievals),
71442- atomic_read(&fscache_n_retrievals_ok),
71443- atomic_read(&fscache_n_retrievals_wait),
71444- atomic_read(&fscache_n_retrievals_nodata),
71445- atomic_read(&fscache_n_retrievals_nobufs),
71446- atomic_read(&fscache_n_retrievals_intr),
71447- atomic_read(&fscache_n_retrievals_nomem));
71448+ atomic_read_unchecked(&fscache_n_retrievals),
71449+ atomic_read_unchecked(&fscache_n_retrievals_ok),
71450+ atomic_read_unchecked(&fscache_n_retrievals_wait),
71451+ atomic_read_unchecked(&fscache_n_retrievals_nodata),
71452+ atomic_read_unchecked(&fscache_n_retrievals_nobufs),
71453+ atomic_read_unchecked(&fscache_n_retrievals_intr),
71454+ atomic_read_unchecked(&fscache_n_retrievals_nomem));
71455 seq_printf(m, "Retrvls: ops=%u owt=%u abt=%u\n",
71456- atomic_read(&fscache_n_retrieval_ops),
71457- atomic_read(&fscache_n_retrieval_op_waits),
71458- atomic_read(&fscache_n_retrievals_object_dead));
71459+ atomic_read_unchecked(&fscache_n_retrieval_ops),
71460+ atomic_read_unchecked(&fscache_n_retrieval_op_waits),
71461+ atomic_read_unchecked(&fscache_n_retrievals_object_dead));
71462
71463 seq_printf(m, "Stores : n=%u ok=%u agn=%u nbf=%u oom=%u\n",
71464- atomic_read(&fscache_n_stores),
71465- atomic_read(&fscache_n_stores_ok),
71466- atomic_read(&fscache_n_stores_again),
71467- atomic_read(&fscache_n_stores_nobufs),
71468- atomic_read(&fscache_n_stores_oom));
71469+ atomic_read_unchecked(&fscache_n_stores),
71470+ atomic_read_unchecked(&fscache_n_stores_ok),
71471+ atomic_read_unchecked(&fscache_n_stores_again),
71472+ atomic_read_unchecked(&fscache_n_stores_nobufs),
71473+ atomic_read_unchecked(&fscache_n_stores_oom));
71474 seq_printf(m, "Stores : ops=%u run=%u pgs=%u rxd=%u olm=%u\n",
71475- atomic_read(&fscache_n_store_ops),
71476- atomic_read(&fscache_n_store_calls),
71477- atomic_read(&fscache_n_store_pages),
71478- atomic_read(&fscache_n_store_radix_deletes),
71479- atomic_read(&fscache_n_store_pages_over_limit));
71480+ atomic_read_unchecked(&fscache_n_store_ops),
71481+ atomic_read_unchecked(&fscache_n_store_calls),
71482+ atomic_read_unchecked(&fscache_n_store_pages),
71483+ atomic_read_unchecked(&fscache_n_store_radix_deletes),
71484+ atomic_read_unchecked(&fscache_n_store_pages_over_limit));
71485
71486 seq_printf(m, "VmScan : nos=%u gon=%u bsy=%u can=%u wt=%u\n",
71487- atomic_read(&fscache_n_store_vmscan_not_storing),
71488- atomic_read(&fscache_n_store_vmscan_gone),
71489- atomic_read(&fscache_n_store_vmscan_busy),
71490- atomic_read(&fscache_n_store_vmscan_cancelled),
71491- atomic_read(&fscache_n_store_vmscan_wait));
71492+ atomic_read_unchecked(&fscache_n_store_vmscan_not_storing),
71493+ atomic_read_unchecked(&fscache_n_store_vmscan_gone),
71494+ atomic_read_unchecked(&fscache_n_store_vmscan_busy),
71495+ atomic_read_unchecked(&fscache_n_store_vmscan_cancelled),
71496+ atomic_read_unchecked(&fscache_n_store_vmscan_wait));
71497
71498 seq_printf(m, "Ops : pend=%u run=%u enq=%u can=%u rej=%u\n",
71499- atomic_read(&fscache_n_op_pend),
71500- atomic_read(&fscache_n_op_run),
71501- atomic_read(&fscache_n_op_enqueue),
71502- atomic_read(&fscache_n_op_cancelled),
71503- atomic_read(&fscache_n_op_rejected));
71504+ atomic_read_unchecked(&fscache_n_op_pend),
71505+ atomic_read_unchecked(&fscache_n_op_run),
71506+ atomic_read_unchecked(&fscache_n_op_enqueue),
71507+ atomic_read_unchecked(&fscache_n_op_cancelled),
71508+ atomic_read_unchecked(&fscache_n_op_rejected));
71509 seq_printf(m, "Ops : dfr=%u rel=%u gc=%u\n",
71510- atomic_read(&fscache_n_op_deferred_release),
71511- atomic_read(&fscache_n_op_release),
71512- atomic_read(&fscache_n_op_gc));
71513+ atomic_read_unchecked(&fscache_n_op_deferred_release),
71514+ atomic_read_unchecked(&fscache_n_op_release),
71515+ atomic_read_unchecked(&fscache_n_op_gc));
71516
71517 seq_printf(m, "CacheOp: alo=%d luo=%d luc=%d gro=%d\n",
71518 atomic_read(&fscache_n_cop_alloc_object),
71519diff --git a/fs/fuse/cuse.c b/fs/fuse/cuse.c
71520index 28d0c7a..04816b7 100644
71521--- a/fs/fuse/cuse.c
71522+++ b/fs/fuse/cuse.c
71523@@ -611,10 +611,12 @@ static int __init cuse_init(void)
71524 INIT_LIST_HEAD(&cuse_conntbl[i]);
71525
71526 /* inherit and extend fuse_dev_operations */
71527- cuse_channel_fops = fuse_dev_operations;
71528- cuse_channel_fops.owner = THIS_MODULE;
71529- cuse_channel_fops.open = cuse_channel_open;
71530- cuse_channel_fops.release = cuse_channel_release;
71531+ pax_open_kernel();
71532+ memcpy((void *)&cuse_channel_fops, &fuse_dev_operations, sizeof(fuse_dev_operations));
71533+ *(void **)&cuse_channel_fops.owner = THIS_MODULE;
71534+ *(void **)&cuse_channel_fops.open = cuse_channel_open;
71535+ *(void **)&cuse_channel_fops.release = cuse_channel_release;
71536+ pax_close_kernel();
71537
71538 cuse_class = class_create(THIS_MODULE, "cuse");
71539 if (IS_ERR(cuse_class))
71540diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
71541index 39706c5..a803c71 100644
71542--- a/fs/fuse/dev.c
71543+++ b/fs/fuse/dev.c
71544@@ -1405,7 +1405,7 @@ static ssize_t fuse_dev_splice_read(struct file *in, loff_t *ppos,
71545 ret = 0;
71546 pipe_lock(pipe);
71547
71548- if (!pipe->readers) {
71549+ if (!atomic_read(&pipe->readers)) {
71550 send_sig(SIGPIPE, current, 0);
71551 if (!ret)
71552 ret = -EPIPE;
71553@@ -1434,7 +1434,7 @@ static ssize_t fuse_dev_splice_read(struct file *in, loff_t *ppos,
71554 page_nr++;
71555 ret += buf->len;
71556
71557- if (pipe->files)
71558+ if (atomic_read(&pipe->files))
71559 do_wakeup = 1;
71560 }
71561
71562diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
71563index 1545b71..7fabe47 100644
71564--- a/fs/fuse/dir.c
71565+++ b/fs/fuse/dir.c
71566@@ -1394,7 +1394,7 @@ static char *read_link(struct dentry *dentry)
71567 return link;
71568 }
71569
71570-static void free_link(char *link)
71571+static void free_link(const char *link)
71572 {
71573 if (!IS_ERR(link))
71574 free_page((unsigned long) link);
71575diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c
71576index f42dffb..4a4c435 100644
71577--- a/fs/gfs2/glock.c
71578+++ b/fs/gfs2/glock.c
71579@@ -385,9 +385,9 @@ static void state_change(struct gfs2_glock *gl, unsigned int new_state)
71580 if (held1 != held2) {
71581 GLOCK_BUG_ON(gl, __lockref_is_dead(&gl->gl_lockref));
71582 if (held2)
71583- gl->gl_lockref.count++;
71584+ __lockref_inc(&gl->gl_lockref);
71585 else
71586- gl->gl_lockref.count--;
71587+ __lockref_dec(&gl->gl_lockref);
71588 }
71589 if (held1 && held2 && list_empty(&gl->gl_holders))
71590 clear_bit(GLF_QUEUED, &gl->gl_flags);
71591@@ -614,9 +614,9 @@ out:
71592 out_sched:
71593 clear_bit(GLF_LOCK, &gl->gl_flags);
71594 smp_mb__after_atomic();
71595- gl->gl_lockref.count++;
71596+ __lockref_inc(&gl->gl_lockref);
71597 if (queue_delayed_work(glock_workqueue, &gl->gl_work, 0) == 0)
71598- gl->gl_lockref.count--;
71599+ __lockref_dec(&gl->gl_lockref);
71600 return;
71601
71602 out_unlock:
71603@@ -742,7 +742,7 @@ int gfs2_glock_get(struct gfs2_sbd *sdp, u64 number,
71604 gl->gl_sbd = sdp;
71605 gl->gl_flags = 0;
71606 gl->gl_name = name;
71607- gl->gl_lockref.count = 1;
71608+ __lockref_set(&gl->gl_lockref, 1);
71609 gl->gl_state = LM_ST_UNLOCKED;
71610 gl->gl_target = LM_ST_UNLOCKED;
71611 gl->gl_demote_state = LM_ST_EXCLUSIVE;
71612@@ -1020,9 +1020,9 @@ int gfs2_glock_nq(struct gfs2_holder *gh)
71613 if (unlikely((LM_FLAG_NOEXP & gh->gh_flags) &&
71614 test_and_clear_bit(GLF_FROZEN, &gl->gl_flags))) {
71615 set_bit(GLF_REPLY_PENDING, &gl->gl_flags);
71616- gl->gl_lockref.count++;
71617+ __lockref_inc(&gl->gl_lockref);
71618 if (queue_delayed_work(glock_workqueue, &gl->gl_work, 0) == 0)
71619- gl->gl_lockref.count--;
71620+ __lockref_dec(&gl->gl_lockref);
71621 }
71622 run_queue(gl, 1);
71623 spin_unlock(&gl->gl_spin);
71624@@ -1325,7 +1325,7 @@ void gfs2_glock_complete(struct gfs2_glock *gl, int ret)
71625 }
71626 }
71627
71628- gl->gl_lockref.count++;
71629+ __lockref_inc(&gl->gl_lockref);
71630 set_bit(GLF_REPLY_PENDING, &gl->gl_flags);
71631 spin_unlock(&gl->gl_spin);
71632
71633@@ -1384,12 +1384,12 @@ add_back_to_lru:
71634 goto add_back_to_lru;
71635 }
71636 clear_bit(GLF_LRU, &gl->gl_flags);
71637- gl->gl_lockref.count++;
71638+ __lockref_inc(&gl->gl_lockref);
71639 if (demote_ok(gl))
71640 handle_callback(gl, LM_ST_UNLOCKED, 0, false);
71641 WARN_ON(!test_and_clear_bit(GLF_LOCK, &gl->gl_flags));
71642 if (queue_delayed_work(glock_workqueue, &gl->gl_work, 0) == 0)
71643- gl->gl_lockref.count--;
71644+ __lockref_dec(&gl->gl_lockref);
71645 spin_unlock(&gl->gl_spin);
71646 cond_resched_lock(&lru_lock);
71647 }
71648@@ -1719,7 +1719,7 @@ void gfs2_dump_glock(struct seq_file *seq, const struct gfs2_glock *gl)
71649 state2str(gl->gl_demote_state), dtime,
71650 atomic_read(&gl->gl_ail_count),
71651 atomic_read(&gl->gl_revokes),
71652- (int)gl->gl_lockref.count, gl->gl_hold_time);
71653+ __lockref_read(&gl->gl_lockref), gl->gl_hold_time);
71654
71655 list_for_each_entry(gh, &gl->gl_holders, gh_list)
71656 dump_holder(seq, gh);
71657diff --git a/fs/gfs2/glops.c b/fs/gfs2/glops.c
71658index fe91951..ce38a6e 100644
71659--- a/fs/gfs2/glops.c
71660+++ b/fs/gfs2/glops.c
71661@@ -544,9 +544,9 @@ static void iopen_go_callback(struct gfs2_glock *gl, bool remote)
71662
71663 if (gl->gl_demote_state == LM_ST_UNLOCKED &&
71664 gl->gl_state == LM_ST_SHARED && ip) {
71665- gl->gl_lockref.count++;
71666+ __lockref_inc(&gl->gl_lockref);
71667 if (queue_work(gfs2_delete_workqueue, &gl->gl_delete) == 0)
71668- gl->gl_lockref.count--;
71669+ __lockref_dec(&gl->gl_lockref);
71670 }
71671 }
71672
71673diff --git a/fs/gfs2/quota.c b/fs/gfs2/quota.c
71674index 3aa17d4..b338075 100644
71675--- a/fs/gfs2/quota.c
71676+++ b/fs/gfs2/quota.c
71677@@ -154,7 +154,7 @@ static enum lru_status gfs2_qd_isolate(struct list_head *item,
71678 if (!spin_trylock(&qd->qd_lockref.lock))
71679 return LRU_SKIP;
71680
71681- if (qd->qd_lockref.count == 0) {
71682+ if (__lockref_read(&qd->qd_lockref) == 0) {
71683 lockref_mark_dead(&qd->qd_lockref);
71684 list_lru_isolate_move(lru, &qd->qd_lru, dispose);
71685 }
71686@@ -221,7 +221,7 @@ static struct gfs2_quota_data *qd_alloc(unsigned hash, struct gfs2_sbd *sdp, str
71687 return NULL;
71688
71689 qd->qd_sbd = sdp;
71690- qd->qd_lockref.count = 1;
71691+ __lockref_set(&qd->qd_lockref, 1);
71692 spin_lock_init(&qd->qd_lockref.lock);
71693 qd->qd_id = qid;
71694 qd->qd_slot = -1;
71695@@ -312,7 +312,7 @@ static void qd_put(struct gfs2_quota_data *qd)
71696 if (lockref_put_or_lock(&qd->qd_lockref))
71697 return;
71698
71699- qd->qd_lockref.count = 0;
71700+ __lockref_set(&qd->qd_lockref, 0);
71701 list_lru_add(&gfs2_qd_lru, &qd->qd_lru);
71702 spin_unlock(&qd->qd_lockref.lock);
71703
71704diff --git a/fs/hostfs/hostfs_kern.c b/fs/hostfs/hostfs_kern.c
71705index fd62cae..3494dfa 100644
71706--- a/fs/hostfs/hostfs_kern.c
71707+++ b/fs/hostfs/hostfs_kern.c
71708@@ -908,7 +908,7 @@ static void *hostfs_follow_link(struct dentry *dentry, struct nameidata *nd)
71709
71710 static void hostfs_put_link(struct dentry *dentry, struct nameidata *nd, void *cookie)
71711 {
71712- char *s = nd_get_link(nd);
71713+ const char *s = nd_get_link(nd);
71714 if (!IS_ERR(s))
71715 __putname(s);
71716 }
71717diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
71718index c274aca..772fa5e 100644
71719--- a/fs/hugetlbfs/inode.c
71720+++ b/fs/hugetlbfs/inode.c
71721@@ -148,6 +148,7 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
71722 struct mm_struct *mm = current->mm;
71723 struct vm_area_struct *vma;
71724 struct hstate *h = hstate_file(file);
71725+ unsigned long offset = gr_rand_threadstack_offset(mm, file, flags);
71726 struct vm_unmapped_area_info info;
71727
71728 if (len & ~huge_page_mask(h))
71729@@ -161,17 +162,26 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
71730 return addr;
71731 }
71732
71733+#ifdef CONFIG_PAX_RANDMMAP
71734+ if (!(mm->pax_flags & MF_PAX_RANDMMAP))
71735+#endif
71736+
71737 if (addr) {
71738 addr = ALIGN(addr, huge_page_size(h));
71739 vma = find_vma(mm, addr);
71740- if (TASK_SIZE - len >= addr &&
71741- (!vma || addr + len <= vma->vm_start))
71742+ if (TASK_SIZE - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
71743 return addr;
71744 }
71745
71746 info.flags = 0;
71747 info.length = len;
71748 info.low_limit = TASK_UNMAPPED_BASE;
71749+
71750+#ifdef CONFIG_PAX_RANDMMAP
71751+ if (mm->pax_flags & MF_PAX_RANDMMAP)
71752+ info.low_limit += mm->delta_mmap;
71753+#endif
71754+
71755 info.high_limit = TASK_SIZE;
71756 info.align_mask = PAGE_MASK & ~huge_page_mask(h);
71757 info.align_offset = 0;
71758@@ -912,7 +922,7 @@ static struct file_system_type hugetlbfs_fs_type = {
71759 };
71760 MODULE_ALIAS_FS("hugetlbfs");
71761
71762-static struct vfsmount *hugetlbfs_vfsmount[HUGE_MAX_HSTATE];
71763+struct vfsmount *hugetlbfs_vfsmount[HUGE_MAX_HSTATE];
71764
71765 static int can_do_hugetlb_shm(void)
71766 {
71767diff --git a/fs/inode.c b/fs/inode.c
71768index f00b16f..b653fea 100644
71769--- a/fs/inode.c
71770+++ b/fs/inode.c
71771@@ -830,16 +830,20 @@ unsigned int get_next_ino(void)
71772 unsigned int *p = &get_cpu_var(last_ino);
71773 unsigned int res = *p;
71774
71775+start:
71776+
71777 #ifdef CONFIG_SMP
71778 if (unlikely((res & (LAST_INO_BATCH-1)) == 0)) {
71779- static atomic_t shared_last_ino;
71780- int next = atomic_add_return(LAST_INO_BATCH, &shared_last_ino);
71781+ static atomic_unchecked_t shared_last_ino;
71782+ int next = atomic_add_return_unchecked(LAST_INO_BATCH, &shared_last_ino);
71783
71784 res = next - LAST_INO_BATCH;
71785 }
71786 #endif
71787
71788- *p = ++res;
71789+ if (unlikely(!++res))
71790+ goto start; /* never zero */
71791+ *p = res;
71792 put_cpu_var(last_ino);
71793 return res;
71794 }
71795diff --git a/fs/jffs2/erase.c b/fs/jffs2/erase.c
71796index 4a6cf28..d3a29d3 100644
71797--- a/fs/jffs2/erase.c
71798+++ b/fs/jffs2/erase.c
71799@@ -452,7 +452,8 @@ static void jffs2_mark_erased_block(struct jffs2_sb_info *c, struct jffs2_eraseb
71800 struct jffs2_unknown_node marker = {
71801 .magic = cpu_to_je16(JFFS2_MAGIC_BITMASK),
71802 .nodetype = cpu_to_je16(JFFS2_NODETYPE_CLEANMARKER),
71803- .totlen = cpu_to_je32(c->cleanmarker_size)
71804+ .totlen = cpu_to_je32(c->cleanmarker_size),
71805+ .hdr_crc = cpu_to_je32(0)
71806 };
71807
71808 jffs2_prealloc_raw_node_refs(c, jeb, 1);
71809diff --git a/fs/jffs2/wbuf.c b/fs/jffs2/wbuf.c
71810index 09ed551..45684f8 100644
71811--- a/fs/jffs2/wbuf.c
71812+++ b/fs/jffs2/wbuf.c
71813@@ -1023,7 +1023,8 @@ static const struct jffs2_unknown_node oob_cleanmarker =
71814 {
71815 .magic = constant_cpu_to_je16(JFFS2_MAGIC_BITMASK),
71816 .nodetype = constant_cpu_to_je16(JFFS2_NODETYPE_CLEANMARKER),
71817- .totlen = constant_cpu_to_je32(8)
71818+ .totlen = constant_cpu_to_je32(8),
71819+ .hdr_crc = constant_cpu_to_je32(0)
71820 };
71821
71822 /*
71823diff --git a/fs/jfs/super.c b/fs/jfs/super.c
71824index 5d30c56..8c45372 100644
71825--- a/fs/jfs/super.c
71826+++ b/fs/jfs/super.c
71827@@ -901,7 +901,7 @@ static int __init init_jfs_fs(void)
71828
71829 jfs_inode_cachep =
71830 kmem_cache_create("jfs_ip", sizeof(struct jfs_inode_info), 0,
71831- SLAB_RECLAIM_ACCOUNT|SLAB_MEM_SPREAD,
71832+ SLAB_RECLAIM_ACCOUNT|SLAB_MEM_SPREAD|SLAB_USERCOPY,
71833 init_once);
71834 if (jfs_inode_cachep == NULL)
71835 return -ENOMEM;
71836diff --git a/fs/kernfs/dir.c b/fs/kernfs/dir.c
71837index 345b35f..da7e0da 100644
71838--- a/fs/kernfs/dir.c
71839+++ b/fs/kernfs/dir.c
71840@@ -182,7 +182,7 @@ struct kernfs_node *kernfs_get_parent(struct kernfs_node *kn)
71841 *
71842 * Returns 31 bit hash of ns + name (so it fits in an off_t )
71843 */
71844-static unsigned int kernfs_name_hash(const char *name, const void *ns)
71845+static unsigned int kernfs_name_hash(const unsigned char *name, const void *ns)
71846 {
71847 unsigned long hash = init_name_hash();
71848 unsigned int len = strlen(name);
71849@@ -838,6 +838,12 @@ static int kernfs_iop_mkdir(struct inode *dir, struct dentry *dentry,
71850 ret = scops->mkdir(parent, dentry->d_name.name, mode);
71851
71852 kernfs_put_active(parent);
71853+
71854+ if (!ret) {
71855+ struct dentry *dentry_ret = kernfs_iop_lookup(dir, dentry, 0);
71856+ ret = PTR_ERR_OR_ZERO(dentry_ret);
71857+ }
71858+
71859 return ret;
71860 }
71861
71862diff --git a/fs/kernfs/file.c b/fs/kernfs/file.c
71863index 2bacb99..f745182 100644
71864--- a/fs/kernfs/file.c
71865+++ b/fs/kernfs/file.c
71866@@ -34,7 +34,7 @@ static DEFINE_MUTEX(kernfs_open_file_mutex);
71867
71868 struct kernfs_open_node {
71869 atomic_t refcnt;
71870- atomic_t event;
71871+ atomic_unchecked_t event;
71872 wait_queue_head_t poll;
71873 struct list_head files; /* goes through kernfs_open_file.list */
71874 };
71875@@ -163,7 +163,7 @@ static int kernfs_seq_show(struct seq_file *sf, void *v)
71876 {
71877 struct kernfs_open_file *of = sf->private;
71878
71879- of->event = atomic_read(&of->kn->attr.open->event);
71880+ of->event = atomic_read_unchecked(&of->kn->attr.open->event);
71881
71882 return of->kn->attr.ops->seq_show(sf, v);
71883 }
71884@@ -207,7 +207,7 @@ static ssize_t kernfs_file_direct_read(struct kernfs_open_file *of,
71885 goto out_free;
71886 }
71887
71888- of->event = atomic_read(&of->kn->attr.open->event);
71889+ of->event = atomic_read_unchecked(&of->kn->attr.open->event);
71890 ops = kernfs_ops(of->kn);
71891 if (ops->read)
71892 len = ops->read(of, buf, len, *ppos);
71893@@ -272,7 +272,7 @@ static ssize_t kernfs_fop_write(struct file *file, const char __user *user_buf,
71894 {
71895 struct kernfs_open_file *of = kernfs_of(file);
71896 const struct kernfs_ops *ops;
71897- size_t len;
71898+ ssize_t len;
71899 char *buf;
71900
71901 if (of->atomic_write_len) {
71902@@ -385,12 +385,12 @@ static int kernfs_vma_page_mkwrite(struct vm_area_struct *vma,
71903 return ret;
71904 }
71905
71906-static int kernfs_vma_access(struct vm_area_struct *vma, unsigned long addr,
71907- void *buf, int len, int write)
71908+static ssize_t kernfs_vma_access(struct vm_area_struct *vma, unsigned long addr,
71909+ void *buf, size_t len, int write)
71910 {
71911 struct file *file = vma->vm_file;
71912 struct kernfs_open_file *of = kernfs_of(file);
71913- int ret;
71914+ ssize_t ret;
71915
71916 if (!of->vm_ops)
71917 return -EINVAL;
71918@@ -569,7 +569,7 @@ static int kernfs_get_open_node(struct kernfs_node *kn,
71919 return -ENOMEM;
71920
71921 atomic_set(&new_on->refcnt, 0);
71922- atomic_set(&new_on->event, 1);
71923+ atomic_set_unchecked(&new_on->event, 1);
71924 init_waitqueue_head(&new_on->poll);
71925 INIT_LIST_HEAD(&new_on->files);
71926 goto retry;
71927@@ -793,7 +793,7 @@ static unsigned int kernfs_fop_poll(struct file *filp, poll_table *wait)
71928
71929 kernfs_put_active(kn);
71930
71931- if (of->event != atomic_read(&on->event))
71932+ if (of->event != atomic_read_unchecked(&on->event))
71933 goto trigger;
71934
71935 return DEFAULT_POLLMASK;
71936@@ -824,7 +824,7 @@ repeat:
71937
71938 on = kn->attr.open;
71939 if (on) {
71940- atomic_inc(&on->event);
71941+ atomic_inc_unchecked(&on->event);
71942 wake_up_interruptible(&on->poll);
71943 }
71944
71945diff --git a/fs/kernfs/symlink.c b/fs/kernfs/symlink.c
71946index 8a19889..4c3069a 100644
71947--- a/fs/kernfs/symlink.c
71948+++ b/fs/kernfs/symlink.c
71949@@ -128,7 +128,7 @@ static void *kernfs_iop_follow_link(struct dentry *dentry, struct nameidata *nd)
71950 static void kernfs_iop_put_link(struct dentry *dentry, struct nameidata *nd,
71951 void *cookie)
71952 {
71953- char *page = nd_get_link(nd);
71954+ const char *page = nd_get_link(nd);
71955 if (!IS_ERR(page))
71956 free_page((unsigned long)page);
71957 }
71958diff --git a/fs/libfs.c b/fs/libfs.c
71959index 0ab6512..cd9982d 100644
71960--- a/fs/libfs.c
71961+++ b/fs/libfs.c
71962@@ -160,6 +160,9 @@ int dcache_readdir(struct file *file, struct dir_context *ctx)
71963
71964 for (p = q->next; p != &dentry->d_subdirs; p = p->next) {
71965 struct dentry *next = list_entry(p, struct dentry, d_child);
71966+ char d_name[sizeof(next->d_iname)];
71967+ const unsigned char *name;
71968+
71969 spin_lock_nested(&next->d_lock, DENTRY_D_LOCK_NESTED);
71970 if (!simple_positive(next)) {
71971 spin_unlock(&next->d_lock);
71972@@ -168,7 +171,12 @@ int dcache_readdir(struct file *file, struct dir_context *ctx)
71973
71974 spin_unlock(&next->d_lock);
71975 spin_unlock(&dentry->d_lock);
71976- if (!dir_emit(ctx, next->d_name.name, next->d_name.len,
71977+ name = next->d_name.name;
71978+ if (name == next->d_iname) {
71979+ memcpy(d_name, name, next->d_name.len);
71980+ name = d_name;
71981+ }
71982+ if (!dir_emit(ctx, name, next->d_name.len,
71983 next->d_inode->i_ino, dt_type(next->d_inode)))
71984 return 0;
71985 spin_lock(&dentry->d_lock);
71986@@ -1027,7 +1035,7 @@ EXPORT_SYMBOL(noop_fsync);
71987 void kfree_put_link(struct dentry *dentry, struct nameidata *nd,
71988 void *cookie)
71989 {
71990- char *s = nd_get_link(nd);
71991+ const char *s = nd_get_link(nd);
71992 if (!IS_ERR(s))
71993 kfree(s);
71994 }
71995diff --git a/fs/lockd/clntproc.c b/fs/lockd/clntproc.c
71996index acd3947..1f896e2 100644
71997--- a/fs/lockd/clntproc.c
71998+++ b/fs/lockd/clntproc.c
71999@@ -36,11 +36,11 @@ static const struct rpc_call_ops nlmclnt_cancel_ops;
72000 /*
72001 * Cookie counter for NLM requests
72002 */
72003-static atomic_t nlm_cookie = ATOMIC_INIT(0x1234);
72004+static atomic_unchecked_t nlm_cookie = ATOMIC_INIT(0x1234);
72005
72006 void nlmclnt_next_cookie(struct nlm_cookie *c)
72007 {
72008- u32 cookie = atomic_inc_return(&nlm_cookie);
72009+ u32 cookie = atomic_inc_return_unchecked(&nlm_cookie);
72010
72011 memcpy(c->data, &cookie, 4);
72012 c->len=4;
72013diff --git a/fs/mount.h b/fs/mount.h
72014index 6a61c2b..bd79179 100644
72015--- a/fs/mount.h
72016+++ b/fs/mount.h
72017@@ -13,7 +13,7 @@ struct mnt_namespace {
72018 u64 seq; /* Sequence number to prevent loops */
72019 wait_queue_head_t poll;
72020 u64 event;
72021-};
72022+} __randomize_layout;
72023
72024 struct mnt_pcp {
72025 int mnt_count;
72026@@ -65,7 +65,7 @@ struct mount {
72027 struct hlist_head mnt_pins;
72028 struct fs_pin mnt_umount;
72029 struct dentry *mnt_ex_mountpoint;
72030-};
72031+} __randomize_layout;
72032
72033 #define MNT_NS_INTERNAL ERR_PTR(-EINVAL) /* distinct from any mnt_namespace */
72034
72035diff --git a/fs/namei.c b/fs/namei.c
72036index 50a8583..44c470a 100644
72037--- a/fs/namei.c
72038+++ b/fs/namei.c
72039@@ -337,17 +337,32 @@ int generic_permission(struct inode *inode, int mask)
72040 if (ret != -EACCES)
72041 return ret;
72042
72043+#ifdef CONFIG_GRKERNSEC
72044+ /* we'll block if we have to log due to a denied capability use */
72045+ if (mask & MAY_NOT_BLOCK)
72046+ return -ECHILD;
72047+#endif
72048+
72049 if (S_ISDIR(inode->i_mode)) {
72050 /* DACs are overridable for directories */
72051- if (capable_wrt_inode_uidgid(inode, CAP_DAC_OVERRIDE))
72052- return 0;
72053 if (!(mask & MAY_WRITE))
72054- if (capable_wrt_inode_uidgid(inode,
72055- CAP_DAC_READ_SEARCH))
72056+ if (capable_wrt_inode_uidgid_nolog(inode, CAP_DAC_OVERRIDE) ||
72057+ capable_wrt_inode_uidgid(inode, CAP_DAC_READ_SEARCH))
72058 return 0;
72059+ if (capable_wrt_inode_uidgid(inode, CAP_DAC_OVERRIDE))
72060+ return 0;
72061 return -EACCES;
72062 }
72063 /*
72064+ * Searching includes executable on directories, else just read.
72065+ */
72066+ mask &= MAY_READ | MAY_WRITE | MAY_EXEC;
72067+ if (mask == MAY_READ)
72068+ if (capable_wrt_inode_uidgid_nolog(inode, CAP_DAC_OVERRIDE) ||
72069+ capable_wrt_inode_uidgid(inode, CAP_DAC_READ_SEARCH))
72070+ return 0;
72071+
72072+ /*
72073 * Read/write DACs are always overridable.
72074 * Executable DACs are overridable when there is
72075 * at least one exec bit set.
72076@@ -356,14 +371,6 @@ int generic_permission(struct inode *inode, int mask)
72077 if (capable_wrt_inode_uidgid(inode, CAP_DAC_OVERRIDE))
72078 return 0;
72079
72080- /*
72081- * Searching includes executable on directories, else just read.
72082- */
72083- mask &= MAY_READ | MAY_WRITE | MAY_EXEC;
72084- if (mask == MAY_READ)
72085- if (capable_wrt_inode_uidgid(inode, CAP_DAC_READ_SEARCH))
72086- return 0;
72087-
72088 return -EACCES;
72089 }
72090 EXPORT_SYMBOL(generic_permission);
72091@@ -503,7 +510,7 @@ struct nameidata {
72092 int last_type;
72093 unsigned depth;
72094 struct file *base;
72095- char *saved_names[MAX_NESTED_LINKS + 1];
72096+ const char *saved_names[MAX_NESTED_LINKS + 1];
72097 };
72098
72099 /*
72100@@ -714,13 +721,13 @@ void nd_jump_link(struct nameidata *nd, struct path *path)
72101 nd->flags |= LOOKUP_JUMPED;
72102 }
72103
72104-void nd_set_link(struct nameidata *nd, char *path)
72105+void nd_set_link(struct nameidata *nd, const char *path)
72106 {
72107 nd->saved_names[nd->depth] = path;
72108 }
72109 EXPORT_SYMBOL(nd_set_link);
72110
72111-char *nd_get_link(struct nameidata *nd)
72112+const char *nd_get_link(const struct nameidata *nd)
72113 {
72114 return nd->saved_names[nd->depth];
72115 }
72116@@ -855,7 +862,7 @@ follow_link(struct path *link, struct nameidata *nd, void **p)
72117 {
72118 struct dentry *dentry = link->dentry;
72119 int error;
72120- char *s;
72121+ const char *s;
72122
72123 BUG_ON(nd->flags & LOOKUP_RCU);
72124
72125@@ -876,6 +883,12 @@ follow_link(struct path *link, struct nameidata *nd, void **p)
72126 if (error)
72127 goto out_put_nd_path;
72128
72129+ if (gr_handle_follow_link(dentry->d_parent->d_inode,
72130+ dentry->d_inode, dentry, nd->path.mnt)) {
72131+ error = -EACCES;
72132+ goto out_put_nd_path;
72133+ }
72134+
72135 nd->last_type = LAST_BIND;
72136 *p = dentry->d_inode->i_op->follow_link(dentry, nd);
72137 error = PTR_ERR(*p);
72138@@ -1640,6 +1653,8 @@ static inline int nested_symlink(struct path *path, struct nameidata *nd)
72139 if (res)
72140 break;
72141 res = walk_component(nd, path, LOOKUP_FOLLOW);
72142+ if (res >= 0 && gr_handle_symlink_owner(&link, nd->inode))
72143+ res = -EACCES;
72144 put_link(nd, &link, cookie);
72145 } while (res > 0);
72146
72147@@ -1712,7 +1727,7 @@ EXPORT_SYMBOL(full_name_hash);
72148 static inline u64 hash_name(const char *name)
72149 {
72150 unsigned long a, b, adata, bdata, mask, hash, len;
72151- const struct word_at_a_time constants = WORD_AT_A_TIME_CONSTANTS;
72152+ static const struct word_at_a_time constants = WORD_AT_A_TIME_CONSTANTS;
72153
72154 hash = a = 0;
72155 len = -sizeof(unsigned long);
72156@@ -2007,6 +2022,8 @@ static int path_lookupat(int dfd, const char *name,
72157 if (err)
72158 break;
72159 err = lookup_last(nd, &path);
72160+ if (!err && gr_handle_symlink_owner(&link, nd->inode))
72161+ err = -EACCES;
72162 put_link(nd, &link, cookie);
72163 }
72164 }
72165@@ -2014,6 +2031,13 @@ static int path_lookupat(int dfd, const char *name,
72166 if (!err)
72167 err = complete_walk(nd);
72168
72169+ if (!err && !(nd->flags & LOOKUP_PARENT)) {
72170+ if (!gr_acl_handle_hidden_file(nd->path.dentry, nd->path.mnt)) {
72171+ path_put(&nd->path);
72172+ err = -ENOENT;
72173+ }
72174+ }
72175+
72176 if (!err && nd->flags & LOOKUP_DIRECTORY) {
72177 if (!d_can_lookup(nd->path.dentry)) {
72178 path_put(&nd->path);
72179@@ -2035,8 +2059,15 @@ static int filename_lookup(int dfd, struct filename *name,
72180 retval = path_lookupat(dfd, name->name,
72181 flags | LOOKUP_REVAL, nd);
72182
72183- if (likely(!retval))
72184+ if (likely(!retval)) {
72185 audit_inode(name, nd->path.dentry, flags & LOOKUP_PARENT);
72186+ if (name->name[0] != '/' && nd->path.dentry && nd->inode) {
72187+ if (!gr_chroot_fchdir(nd->path.dentry, nd->path.mnt)) {
72188+ path_put(&nd->path);
72189+ return -ENOENT;
72190+ }
72191+ }
72192+ }
72193 return retval;
72194 }
72195
72196@@ -2615,6 +2646,13 @@ static int may_open(struct path *path, int acc_mode, int flag)
72197 if (flag & O_NOATIME && !inode_owner_or_capable(inode))
72198 return -EPERM;
72199
72200+ if (gr_handle_rofs_blockwrite(dentry, path->mnt, acc_mode))
72201+ return -EPERM;
72202+ if (gr_handle_rawio(inode))
72203+ return -EPERM;
72204+ if (!gr_acl_handle_open(dentry, path->mnt, acc_mode))
72205+ return -EACCES;
72206+
72207 return 0;
72208 }
72209
72210@@ -2846,7 +2884,7 @@ looked_up:
72211 * cleared otherwise prior to returning.
72212 */
72213 static int lookup_open(struct nameidata *nd, struct path *path,
72214- struct file *file,
72215+ struct path *link, struct file *file,
72216 const struct open_flags *op,
72217 bool got_write, int *opened)
72218 {
72219@@ -2881,6 +2919,17 @@ static int lookup_open(struct nameidata *nd, struct path *path,
72220 /* Negative dentry, just create the file */
72221 if (!dentry->d_inode && (op->open_flag & O_CREAT)) {
72222 umode_t mode = op->mode;
72223+
72224+ if (link && gr_handle_symlink_owner(link, dir->d_inode)) {
72225+ error = -EACCES;
72226+ goto out_dput;
72227+ }
72228+
72229+ if (!gr_acl_handle_creat(dentry, dir, nd->path.mnt, op->open_flag, op->acc_mode, mode)) {
72230+ error = -EACCES;
72231+ goto out_dput;
72232+ }
72233+
72234 if (!IS_POSIXACL(dir->d_inode))
72235 mode &= ~current_umask();
72236 /*
72237@@ -2902,6 +2951,8 @@ static int lookup_open(struct nameidata *nd, struct path *path,
72238 nd->flags & LOOKUP_EXCL);
72239 if (error)
72240 goto out_dput;
72241+ else
72242+ gr_handle_create(dentry, nd->path.mnt);
72243 }
72244 out_no_open:
72245 path->dentry = dentry;
72246@@ -2916,7 +2967,7 @@ out_dput:
72247 /*
72248 * Handle the last step of open()
72249 */
72250-static int do_last(struct nameidata *nd, struct path *path,
72251+static int do_last(struct nameidata *nd, struct path *path, struct path *link,
72252 struct file *file, const struct open_flags *op,
72253 int *opened, struct filename *name)
72254 {
72255@@ -2966,6 +3017,15 @@ static int do_last(struct nameidata *nd, struct path *path,
72256 if (error)
72257 return error;
72258
72259+ if (!gr_acl_handle_hidden_file(dir, nd->path.mnt)) {
72260+ error = -ENOENT;
72261+ goto out;
72262+ }
72263+ if (link && gr_handle_symlink_owner(link, nd->inode)) {
72264+ error = -EACCES;
72265+ goto out;
72266+ }
72267+
72268 audit_inode(name, dir, LOOKUP_PARENT);
72269 error = -EISDIR;
72270 /* trailing slashes? */
72271@@ -2985,7 +3045,7 @@ retry_lookup:
72272 */
72273 }
72274 mutex_lock(&dir->d_inode->i_mutex);
72275- error = lookup_open(nd, path, file, op, got_write, opened);
72276+ error = lookup_open(nd, path, link, file, op, got_write, opened);
72277 mutex_unlock(&dir->d_inode->i_mutex);
72278
72279 if (error <= 0) {
72280@@ -3009,11 +3069,28 @@ retry_lookup:
72281 goto finish_open_created;
72282 }
72283
72284+ if (!gr_acl_handle_hidden_file(path->dentry, nd->path.mnt)) {
72285+ error = -ENOENT;
72286+ goto exit_dput;
72287+ }
72288+ if (link && gr_handle_symlink_owner(link, path->dentry->d_inode)) {
72289+ error = -EACCES;
72290+ goto exit_dput;
72291+ }
72292+
72293 /*
72294 * create/update audit record if it already exists.
72295 */
72296- if (d_is_positive(path->dentry))
72297+ if (d_is_positive(path->dentry)) {
72298+ /* only check if O_CREAT is specified, all other checks need to go
72299+ into may_open */
72300+ if (gr_handle_fifo(path->dentry, path->mnt, dir, open_flag, acc_mode)) {
72301+ error = -EACCES;
72302+ goto exit_dput;
72303+ }
72304+
72305 audit_inode(name, path->dentry, 0);
72306+ }
72307
72308 /*
72309 * If atomic_open() acquired write access it is dropped now due to
72310@@ -3055,6 +3132,11 @@ finish_lookup:
72311 }
72312 }
72313 BUG_ON(inode != path->dentry->d_inode);
72314+ /* if we're resolving a symlink to another symlink */
72315+ if (link && gr_handle_symlink_owner(link, inode)) {
72316+ error = -EACCES;
72317+ goto out;
72318+ }
72319 return 1;
72320 }
72321
72322@@ -3074,7 +3156,18 @@ finish_open:
72323 path_put(&save_parent);
72324 return error;
72325 }
72326+
72327+ if (!gr_acl_handle_hidden_file(nd->path.dentry, nd->path.mnt)) {
72328+ error = -ENOENT;
72329+ goto out;
72330+ }
72331+ if (link && gr_handle_symlink_owner(link, nd->inode)) {
72332+ error = -EACCES;
72333+ goto out;
72334+ }
72335+
72336 audit_inode(name, nd->path.dentry, 0);
72337+
72338 error = -EISDIR;
72339 if ((open_flag & O_CREAT) && d_is_dir(nd->path.dentry))
72340 goto out;
72341@@ -3235,7 +3328,7 @@ static struct file *path_openat(int dfd, struct filename *pathname,
72342 if (unlikely(error))
72343 goto out;
72344
72345- error = do_last(nd, &path, file, op, &opened, pathname);
72346+ error = do_last(nd, &path, NULL, file, op, &opened, pathname);
72347 while (unlikely(error > 0)) { /* trailing symlink */
72348 struct path link = path;
72349 void *cookie;
72350@@ -3253,7 +3346,7 @@ static struct file *path_openat(int dfd, struct filename *pathname,
72351 error = follow_link(&link, nd, &cookie);
72352 if (unlikely(error))
72353 break;
72354- error = do_last(nd, &path, file, op, &opened, pathname);
72355+ error = do_last(nd, &path, &link, file, op, &opened, pathname);
72356 put_link(nd, &link, cookie);
72357 }
72358 out:
72359@@ -3356,9 +3449,11 @@ static struct dentry *filename_create(int dfd, struct filename *name,
72360 goto unlock;
72361
72362 error = -EEXIST;
72363- if (d_is_positive(dentry))
72364+ if (d_is_positive(dentry)) {
72365+ if (!gr_acl_handle_hidden_file(dentry, nd.path.mnt))
72366+ error = -ENOENT;
72367 goto fail;
72368-
72369+ }
72370 /*
72371 * Special case - lookup gave negative, but... we had foo/bar/
72372 * From the vfs_mknod() POV we just have a negative dentry -
72373@@ -3423,6 +3518,20 @@ struct dentry *user_path_create(int dfd, const char __user *pathname,
72374 }
72375 EXPORT_SYMBOL(user_path_create);
72376
72377+static struct dentry *user_path_create_with_name(int dfd, const char __user *pathname, struct path *path, struct filename **to, unsigned int lookup_flags)
72378+{
72379+ struct filename *tmp = getname(pathname);
72380+ struct dentry *res;
72381+ if (IS_ERR(tmp))
72382+ return ERR_CAST(tmp);
72383+ res = kern_path_create(dfd, tmp->name, path, lookup_flags);
72384+ if (IS_ERR(res))
72385+ putname(tmp);
72386+ else
72387+ *to = tmp;
72388+ return res;
72389+}
72390+
72391 int vfs_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev)
72392 {
72393 int error = may_create(dir, dentry);
72394@@ -3486,6 +3595,17 @@ retry:
72395
72396 if (!IS_POSIXACL(path.dentry->d_inode))
72397 mode &= ~current_umask();
72398+
72399+ if (gr_handle_chroot_mknod(dentry, path.mnt, mode)) {
72400+ error = -EPERM;
72401+ goto out;
72402+ }
72403+
72404+ if (!gr_acl_handle_mknod(dentry, path.dentry, path.mnt, mode)) {
72405+ error = -EACCES;
72406+ goto out;
72407+ }
72408+
72409 error = security_path_mknod(&path, dentry, mode, dev);
72410 if (error)
72411 goto out;
72412@@ -3501,6 +3621,8 @@ retry:
72413 error = vfs_mknod(path.dentry->d_inode,dentry,mode,0);
72414 break;
72415 }
72416+ if (!error)
72417+ gr_handle_create(dentry, path.mnt);
72418 out:
72419 done_path_create(&path, dentry);
72420 if (retry_estale(error, lookup_flags)) {
72421@@ -3555,9 +3677,16 @@ retry:
72422
72423 if (!IS_POSIXACL(path.dentry->d_inode))
72424 mode &= ~current_umask();
72425+ if (!gr_acl_handle_mkdir(dentry, path.dentry, path.mnt)) {
72426+ error = -EACCES;
72427+ goto out;
72428+ }
72429 error = security_path_mkdir(&path, dentry, mode);
72430 if (!error)
72431 error = vfs_mkdir(path.dentry->d_inode, dentry, mode);
72432+ if (!error)
72433+ gr_handle_create(dentry, path.mnt);
72434+out:
72435 done_path_create(&path, dentry);
72436 if (retry_estale(error, lookup_flags)) {
72437 lookup_flags |= LOOKUP_REVAL;
72438@@ -3590,7 +3719,7 @@ void dentry_unhash(struct dentry *dentry)
72439 {
72440 shrink_dcache_parent(dentry);
72441 spin_lock(&dentry->d_lock);
72442- if (dentry->d_lockref.count == 1)
72443+ if (__lockref_read(&dentry->d_lockref) == 1)
72444 __d_drop(dentry);
72445 spin_unlock(&dentry->d_lock);
72446 }
72447@@ -3641,6 +3770,8 @@ static long do_rmdir(int dfd, const char __user *pathname)
72448 struct filename *name;
72449 struct dentry *dentry;
72450 struct nameidata nd;
72451+ u64 saved_ino = 0;
72452+ dev_t saved_dev = 0;
72453 unsigned int lookup_flags = 0;
72454 retry:
72455 name = user_path_parent(dfd, pathname, &nd, lookup_flags);
72456@@ -3673,10 +3804,21 @@ retry:
72457 error = -ENOENT;
72458 goto exit3;
72459 }
72460+
72461+ saved_ino = gr_get_ino_from_dentry(dentry);
72462+ saved_dev = gr_get_dev_from_dentry(dentry);
72463+
72464+ if (!gr_acl_handle_rmdir(dentry, nd.path.mnt)) {
72465+ error = -EACCES;
72466+ goto exit3;
72467+ }
72468+
72469 error = security_path_rmdir(&nd.path, dentry);
72470 if (error)
72471 goto exit3;
72472 error = vfs_rmdir(nd.path.dentry->d_inode, dentry);
72473+ if (!error && (saved_dev || saved_ino))
72474+ gr_handle_delete(saved_ino, saved_dev);
72475 exit3:
72476 dput(dentry);
72477 exit2:
72478@@ -3769,6 +3911,8 @@ static long do_unlinkat(int dfd, const char __user *pathname)
72479 struct nameidata nd;
72480 struct inode *inode = NULL;
72481 struct inode *delegated_inode = NULL;
72482+ u64 saved_ino = 0;
72483+ dev_t saved_dev = 0;
72484 unsigned int lookup_flags = 0;
72485 retry:
72486 name = user_path_parent(dfd, pathname, &nd, lookup_flags);
72487@@ -3795,10 +3939,22 @@ retry_deleg:
72488 if (d_is_negative(dentry))
72489 goto slashes;
72490 ihold(inode);
72491+
72492+ if (inode->i_nlink <= 1) {
72493+ saved_ino = gr_get_ino_from_dentry(dentry);
72494+ saved_dev = gr_get_dev_from_dentry(dentry);
72495+ }
72496+ if (!gr_acl_handle_unlink(dentry, nd.path.mnt)) {
72497+ error = -EACCES;
72498+ goto exit2;
72499+ }
72500+
72501 error = security_path_unlink(&nd.path, dentry);
72502 if (error)
72503 goto exit2;
72504 error = vfs_unlink(nd.path.dentry->d_inode, dentry, &delegated_inode);
72505+ if (!error && (saved_ino || saved_dev))
72506+ gr_handle_delete(saved_ino, saved_dev);
72507 exit2:
72508 dput(dentry);
72509 }
72510@@ -3887,9 +4043,17 @@ retry:
72511 if (IS_ERR(dentry))
72512 goto out_putname;
72513
72514+ if (!gr_acl_handle_symlink(dentry, path.dentry, path.mnt, from)) {
72515+ error = -EACCES;
72516+ goto out;
72517+ }
72518+
72519 error = security_path_symlink(&path, dentry, from->name);
72520 if (!error)
72521 error = vfs_symlink(path.dentry->d_inode, dentry, from->name);
72522+ if (!error)
72523+ gr_handle_create(dentry, path.mnt);
72524+out:
72525 done_path_create(&path, dentry);
72526 if (retry_estale(error, lookup_flags)) {
72527 lookup_flags |= LOOKUP_REVAL;
72528@@ -3993,6 +4157,7 @@ SYSCALL_DEFINE5(linkat, int, olddfd, const char __user *, oldname,
72529 struct dentry *new_dentry;
72530 struct path old_path, new_path;
72531 struct inode *delegated_inode = NULL;
72532+ struct filename *to = NULL;
72533 int how = 0;
72534 int error;
72535
72536@@ -4016,7 +4181,7 @@ retry:
72537 if (error)
72538 return error;
72539
72540- new_dentry = user_path_create(newdfd, newname, &new_path,
72541+ new_dentry = user_path_create_with_name(newdfd, newname, &new_path, &to,
72542 (how & LOOKUP_REVAL));
72543 error = PTR_ERR(new_dentry);
72544 if (IS_ERR(new_dentry))
72545@@ -4028,11 +4193,28 @@ retry:
72546 error = may_linkat(&old_path);
72547 if (unlikely(error))
72548 goto out_dput;
72549+
72550+ if (gr_handle_hardlink(old_path.dentry, old_path.mnt,
72551+ old_path.dentry->d_inode,
72552+ old_path.dentry->d_inode->i_mode, to)) {
72553+ error = -EACCES;
72554+ goto out_dput;
72555+ }
72556+
72557+ if (!gr_acl_handle_link(new_dentry, new_path.dentry, new_path.mnt,
72558+ old_path.dentry, old_path.mnt, to)) {
72559+ error = -EACCES;
72560+ goto out_dput;
72561+ }
72562+
72563 error = security_path_link(old_path.dentry, &new_path, new_dentry);
72564 if (error)
72565 goto out_dput;
72566 error = vfs_link(old_path.dentry, new_path.dentry->d_inode, new_dentry, &delegated_inode);
72567+ if (!error)
72568+ gr_handle_create(new_dentry, new_path.mnt);
72569 out_dput:
72570+ putname(to);
72571 done_path_create(&new_path, new_dentry);
72572 if (delegated_inode) {
72573 error = break_deleg_wait(&delegated_inode);
72574@@ -4348,6 +4530,20 @@ retry_deleg:
72575 if (new_dentry == trap)
72576 goto exit5;
72577
72578+ if (gr_bad_chroot_rename(old_dentry, oldnd.path.mnt, new_dentry, newnd.path.mnt)) {
72579+ /* use EXDEV error to cause 'mv' to switch to an alternative
72580+ * method for usability
72581+ */
72582+ error = -EXDEV;
72583+ goto exit5;
72584+ }
72585+
72586+ error = gr_acl_handle_rename(new_dentry, new_dir, newnd.path.mnt,
72587+ old_dentry, old_dir->d_inode, oldnd.path.mnt,
72588+ to, flags);
72589+ if (error)
72590+ goto exit5;
72591+
72592 error = security_path_rename(&oldnd.path, old_dentry,
72593 &newnd.path, new_dentry, flags);
72594 if (error)
72595@@ -4355,6 +4551,9 @@ retry_deleg:
72596 error = vfs_rename(old_dir->d_inode, old_dentry,
72597 new_dir->d_inode, new_dentry,
72598 &delegated_inode, flags);
72599+ if (!error)
72600+ gr_handle_rename(old_dir->d_inode, new_dir->d_inode, old_dentry,
72601+ new_dentry, oldnd.path.mnt, new_dentry->d_inode ? 1 : 0, flags);
72602 exit5:
72603 dput(new_dentry);
72604 exit4:
72605@@ -4411,14 +4610,24 @@ EXPORT_SYMBOL(vfs_whiteout);
72606
72607 int readlink_copy(char __user *buffer, int buflen, const char *link)
72608 {
72609+ char tmpbuf[64];
72610+ const char *newlink;
72611 int len = PTR_ERR(link);
72612+
72613 if (IS_ERR(link))
72614 goto out;
72615
72616 len = strlen(link);
72617 if (len > (unsigned) buflen)
72618 len = buflen;
72619- if (copy_to_user(buffer, link, len))
72620+
72621+ if (len < sizeof(tmpbuf)) {
72622+ memcpy(tmpbuf, link, len);
72623+ newlink = tmpbuf;
72624+ } else
72625+ newlink = link;
72626+
72627+ if (copy_to_user(buffer, newlink, len))
72628 len = -EFAULT;
72629 out:
72630 return len;
72631diff --git a/fs/namespace.c b/fs/namespace.c
72632index 13b0f7b..1ee96e7 100644
72633--- a/fs/namespace.c
72634+++ b/fs/namespace.c
72635@@ -1480,6 +1480,9 @@ static int do_umount(struct mount *mnt, int flags)
72636 if (!(sb->s_flags & MS_RDONLY))
72637 retval = do_remount_sb(sb, MS_RDONLY, NULL, 0);
72638 up_write(&sb->s_umount);
72639+
72640+ gr_log_remount(mnt->mnt_devname, retval);
72641+
72642 return retval;
72643 }
72644
72645@@ -1502,6 +1505,9 @@ static int do_umount(struct mount *mnt, int flags)
72646 }
72647 unlock_mount_hash();
72648 namespace_unlock();
72649+
72650+ gr_log_unmount(mnt->mnt_devname, retval);
72651+
72652 return retval;
72653 }
72654
72655@@ -1559,7 +1565,7 @@ static inline bool may_mount(void)
72656 * unixes. Our API is identical to OSF/1 to avoid making a mess of AMD
72657 */
72658
72659-SYSCALL_DEFINE2(umount, char __user *, name, int, flags)
72660+SYSCALL_DEFINE2(umount, const char __user *, name, int, flags)
72661 {
72662 struct path path;
72663 struct mount *mnt;
72664@@ -1604,7 +1610,7 @@ out:
72665 /*
72666 * The 2.0 compatible umount. No flags.
72667 */
72668-SYSCALL_DEFINE1(oldumount, char __user *, name)
72669+SYSCALL_DEFINE1(oldumount, const char __user *, name)
72670 {
72671 return sys_umount(name, 0);
72672 }
72673@@ -2673,6 +2679,16 @@ long do_mount(const char *dev_name, const char __user *dir_name,
72674 MS_NOATIME | MS_NODIRATIME | MS_RELATIME| MS_KERNMOUNT |
72675 MS_STRICTATIME);
72676
72677+ if (gr_handle_rofs_mount(path.dentry, path.mnt, mnt_flags)) {
72678+ retval = -EPERM;
72679+ goto dput_out;
72680+ }
72681+
72682+ if (gr_handle_chroot_mount(path.dentry, path.mnt, dev_name)) {
72683+ retval = -EPERM;
72684+ goto dput_out;
72685+ }
72686+
72687 if (flags & MS_REMOUNT)
72688 retval = do_remount(&path, flags & ~MS_REMOUNT, mnt_flags,
72689 data_page);
72690@@ -2686,7 +2702,10 @@ long do_mount(const char *dev_name, const char __user *dir_name,
72691 retval = do_new_mount(&path, type_page, flags, mnt_flags,
72692 dev_name, data_page);
72693 dput_out:
72694+ gr_log_mount(dev_name, &path, retval);
72695+
72696 path_put(&path);
72697+
72698 return retval;
72699 }
72700
72701@@ -2704,7 +2723,7 @@ static void free_mnt_ns(struct mnt_namespace *ns)
72702 * number incrementing at 10Ghz will take 12,427 years to wrap which
72703 * is effectively never, so we can ignore the possibility.
72704 */
72705-static atomic64_t mnt_ns_seq = ATOMIC64_INIT(1);
72706+static atomic64_unchecked_t mnt_ns_seq = ATOMIC64_INIT(1);
72707
72708 static struct mnt_namespace *alloc_mnt_ns(struct user_namespace *user_ns)
72709 {
72710@@ -2720,7 +2739,7 @@ static struct mnt_namespace *alloc_mnt_ns(struct user_namespace *user_ns)
72711 return ERR_PTR(ret);
72712 }
72713 new_ns->ns.ops = &mntns_operations;
72714- new_ns->seq = atomic64_add_return(1, &mnt_ns_seq);
72715+ new_ns->seq = atomic64_add_return_unchecked(1, &mnt_ns_seq);
72716 atomic_set(&new_ns->count, 1);
72717 new_ns->root = NULL;
72718 INIT_LIST_HEAD(&new_ns->list);
72719@@ -2730,7 +2749,7 @@ static struct mnt_namespace *alloc_mnt_ns(struct user_namespace *user_ns)
72720 return new_ns;
72721 }
72722
72723-struct mnt_namespace *copy_mnt_ns(unsigned long flags, struct mnt_namespace *ns,
72724+__latent_entropy struct mnt_namespace *copy_mnt_ns(unsigned long flags, struct mnt_namespace *ns,
72725 struct user_namespace *user_ns, struct fs_struct *new_fs)
72726 {
72727 struct mnt_namespace *new_ns;
72728@@ -2851,8 +2870,8 @@ struct dentry *mount_subtree(struct vfsmount *mnt, const char *name)
72729 }
72730 EXPORT_SYMBOL(mount_subtree);
72731
72732-SYSCALL_DEFINE5(mount, char __user *, dev_name, char __user *, dir_name,
72733- char __user *, type, unsigned long, flags, void __user *, data)
72734+SYSCALL_DEFINE5(mount, const char __user *, dev_name, const char __user *, dir_name,
72735+ const char __user *, type, unsigned long, flags, void __user *, data)
72736 {
72737 int ret;
72738 char *kernel_type;
72739@@ -2958,6 +2977,11 @@ SYSCALL_DEFINE2(pivot_root, const char __user *, new_root,
72740 if (error)
72741 goto out2;
72742
72743+ if (gr_handle_chroot_pivot()) {
72744+ error = -EPERM;
72745+ goto out2;
72746+ }
72747+
72748 get_fs_root(current->fs, &root);
72749 old_mp = lock_mount(&old);
72750 error = PTR_ERR(old_mp);
72751@@ -3238,7 +3262,7 @@ static int mntns_install(struct nsproxy *nsproxy, struct ns_common *ns)
72752 !ns_capable(current_user_ns(), CAP_SYS_ADMIN))
72753 return -EPERM;
72754
72755- if (fs->users != 1)
72756+ if (atomic_read(&fs->users) != 1)
72757 return -EINVAL;
72758
72759 get_mnt_ns(mnt_ns);
72760diff --git a/fs/nfs/callback_xdr.c b/fs/nfs/callback_xdr.c
72761index 19ca95c..b28702c 100644
72762--- a/fs/nfs/callback_xdr.c
72763+++ b/fs/nfs/callback_xdr.c
72764@@ -51,7 +51,7 @@ struct callback_op {
72765 callback_decode_arg_t decode_args;
72766 callback_encode_res_t encode_res;
72767 long res_maxsize;
72768-};
72769+} __do_const;
72770
72771 static struct callback_op callback_ops[];
72772
72773diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
72774index d42dff6..ecbdf42 100644
72775--- a/fs/nfs/inode.c
72776+++ b/fs/nfs/inode.c
72777@@ -1270,16 +1270,16 @@ static int nfs_ctime_need_update(const struct inode *inode, const struct nfs_fat
72778 return timespec_compare(&fattr->ctime, &inode->i_ctime) > 0;
72779 }
72780
72781-static atomic_long_t nfs_attr_generation_counter;
72782+static atomic_long_unchecked_t nfs_attr_generation_counter;
72783
72784 static unsigned long nfs_read_attr_generation_counter(void)
72785 {
72786- return atomic_long_read(&nfs_attr_generation_counter);
72787+ return atomic_long_read_unchecked(&nfs_attr_generation_counter);
72788 }
72789
72790 unsigned long nfs_inc_attr_generation_counter(void)
72791 {
72792- return atomic_long_inc_return(&nfs_attr_generation_counter);
72793+ return atomic_long_inc_return_unchecked(&nfs_attr_generation_counter);
72794 }
72795 EXPORT_SYMBOL_GPL(nfs_inc_attr_generation_counter);
72796
72797diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
72798index 5416968..0942042 100644
72799--- a/fs/nfsd/nfs4proc.c
72800+++ b/fs/nfsd/nfs4proc.c
72801@@ -1496,7 +1496,7 @@ struct nfsd4_operation {
72802 nfsd4op_rsize op_rsize_bop;
72803 stateid_getter op_get_currentstateid;
72804 stateid_setter op_set_currentstateid;
72805-};
72806+} __do_const;
72807
72808 static struct nfsd4_operation nfsd4_ops[];
72809
72810diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
72811index 5b33ce1..c2a92aa 100644
72812--- a/fs/nfsd/nfs4xdr.c
72813+++ b/fs/nfsd/nfs4xdr.c
72814@@ -1703,7 +1703,7 @@ nfsd4_decode_notsupp(struct nfsd4_compoundargs *argp, void *p)
72815
72816 typedef __be32(*nfsd4_dec)(struct nfsd4_compoundargs *argp, void *);
72817
72818-static nfsd4_dec nfsd4_dec_ops[] = {
72819+static const nfsd4_dec nfsd4_dec_ops[] = {
72820 [OP_ACCESS] = (nfsd4_dec)nfsd4_decode_access,
72821 [OP_CLOSE] = (nfsd4_dec)nfsd4_decode_close,
72822 [OP_COMMIT] = (nfsd4_dec)nfsd4_decode_commit,
72823diff --git a/fs/nfsd/nfscache.c b/fs/nfsd/nfscache.c
72824index 46ec934..f384e41 100644
72825--- a/fs/nfsd/nfscache.c
72826+++ b/fs/nfsd/nfscache.c
72827@@ -541,7 +541,7 @@ nfsd_cache_update(struct svc_rqst *rqstp, int cachetype, __be32 *statp)
72828 struct kvec *resv = &rqstp->rq_res.head[0], *cachv;
72829 u32 hash;
72830 struct nfsd_drc_bucket *b;
72831- int len;
72832+ long len;
72833 size_t bufsize = 0;
72834
72835 if (!rp)
72836@@ -550,11 +550,14 @@ nfsd_cache_update(struct svc_rqst *rqstp, int cachetype, __be32 *statp)
72837 hash = nfsd_cache_hash(rp->c_xid);
72838 b = &drc_hashtbl[hash];
72839
72840- len = resv->iov_len - ((char*)statp - (char*)resv->iov_base);
72841- len >>= 2;
72842+ if (statp) {
72843+ len = (char*)statp - (char*)resv->iov_base;
72844+ len = resv->iov_len - len;
72845+ len >>= 2;
72846+ }
72847
72848 /* Don't cache excessive amounts of data and XDR failures */
72849- if (!statp || len > (256 >> 2)) {
72850+ if (!statp || len > (256 >> 2) || len < 0) {
72851 nfsd_reply_cache_free(b, rp);
72852 return;
72853 }
72854@@ -562,7 +565,7 @@ nfsd_cache_update(struct svc_rqst *rqstp, int cachetype, __be32 *statp)
72855 switch (cachetype) {
72856 case RC_REPLSTAT:
72857 if (len != 1)
72858- printk("nfsd: RC_REPLSTAT/reply len %d!\n",len);
72859+ printk("nfsd: RC_REPLSTAT/reply len %ld!\n",len);
72860 rp->c_replstat = *statp;
72861 break;
72862 case RC_REPLBUFF:
72863diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
72864index 3685265..e77261e 100644
72865--- a/fs/nfsd/vfs.c
72866+++ b/fs/nfsd/vfs.c
72867@@ -893,7 +893,7 @@ __be32 nfsd_readv(struct file *file, loff_t offset, struct kvec *vec, int vlen,
72868
72869 oldfs = get_fs();
72870 set_fs(KERNEL_DS);
72871- host_err = vfs_readv(file, (struct iovec __user *)vec, vlen, &offset);
72872+ host_err = vfs_readv(file, (struct iovec __force_user *)vec, vlen, &offset);
72873 set_fs(oldfs);
72874 return nfsd_finish_read(file, count, host_err);
72875 }
72876@@ -980,7 +980,7 @@ nfsd_vfs_write(struct svc_rqst *rqstp, struct svc_fh *fhp, struct file *file,
72877
72878 /* Write the data. */
72879 oldfs = get_fs(); set_fs(KERNEL_DS);
72880- host_err = vfs_writev(file, (struct iovec __user *)vec, vlen, &pos);
72881+ host_err = vfs_writev(file, (struct iovec __force_user *)vec, vlen, &pos);
72882 set_fs(oldfs);
72883 if (host_err < 0)
72884 goto out_nfserr;
72885@@ -1525,7 +1525,7 @@ nfsd_readlink(struct svc_rqst *rqstp, struct svc_fh *fhp, char *buf, int *lenp)
72886 */
72887
72888 oldfs = get_fs(); set_fs(KERNEL_DS);
72889- host_err = inode->i_op->readlink(path.dentry, (char __user *)buf, *lenp);
72890+ host_err = inode->i_op->readlink(path.dentry, (char __force_user *)buf, *lenp);
72891 set_fs(oldfs);
72892
72893 if (host_err < 0)
72894diff --git a/fs/nls/nls_base.c b/fs/nls/nls_base.c
72895index 52ccd34..7a6b202 100644
72896--- a/fs/nls/nls_base.c
72897+++ b/fs/nls/nls_base.c
72898@@ -234,21 +234,25 @@ EXPORT_SYMBOL(utf16s_to_utf8s);
72899
72900 int __register_nls(struct nls_table *nls, struct module *owner)
72901 {
72902- struct nls_table ** tmp = &tables;
72903+ struct nls_table *tmp = tables;
72904
72905 if (nls->next)
72906 return -EBUSY;
72907
72908- nls->owner = owner;
72909+ pax_open_kernel();
72910+ *(void **)&nls->owner = owner;
72911+ pax_close_kernel();
72912 spin_lock(&nls_lock);
72913- while (*tmp) {
72914- if (nls == *tmp) {
72915+ while (tmp) {
72916+ if (nls == tmp) {
72917 spin_unlock(&nls_lock);
72918 return -EBUSY;
72919 }
72920- tmp = &(*tmp)->next;
72921+ tmp = tmp->next;
72922 }
72923- nls->next = tables;
72924+ pax_open_kernel();
72925+ *(struct nls_table **)&nls->next = tables;
72926+ pax_close_kernel();
72927 tables = nls;
72928 spin_unlock(&nls_lock);
72929 return 0;
72930@@ -257,12 +261,14 @@ EXPORT_SYMBOL(__register_nls);
72931
72932 int unregister_nls(struct nls_table * nls)
72933 {
72934- struct nls_table ** tmp = &tables;
72935+ struct nls_table * const * tmp = &tables;
72936
72937 spin_lock(&nls_lock);
72938 while (*tmp) {
72939 if (nls == *tmp) {
72940- *tmp = nls->next;
72941+ pax_open_kernel();
72942+ *(struct nls_table **)tmp = nls->next;
72943+ pax_close_kernel();
72944 spin_unlock(&nls_lock);
72945 return 0;
72946 }
72947@@ -272,7 +278,7 @@ int unregister_nls(struct nls_table * nls)
72948 return -EINVAL;
72949 }
72950
72951-static struct nls_table *find_nls(char *charset)
72952+static struct nls_table *find_nls(const char *charset)
72953 {
72954 struct nls_table *nls;
72955 spin_lock(&nls_lock);
72956@@ -288,7 +294,7 @@ static struct nls_table *find_nls(char *charset)
72957 return nls;
72958 }
72959
72960-struct nls_table *load_nls(char *charset)
72961+struct nls_table *load_nls(const char *charset)
72962 {
72963 return try_then_request_module(find_nls(charset), "nls_%s", charset);
72964 }
72965diff --git a/fs/nls/nls_euc-jp.c b/fs/nls/nls_euc-jp.c
72966index 162b3f1..6076a7c 100644
72967--- a/fs/nls/nls_euc-jp.c
72968+++ b/fs/nls/nls_euc-jp.c
72969@@ -560,8 +560,10 @@ static int __init init_nls_euc_jp(void)
72970 p_nls = load_nls("cp932");
72971
72972 if (p_nls) {
72973- table.charset2upper = p_nls->charset2upper;
72974- table.charset2lower = p_nls->charset2lower;
72975+ pax_open_kernel();
72976+ *(const unsigned char **)&table.charset2upper = p_nls->charset2upper;
72977+ *(const unsigned char **)&table.charset2lower = p_nls->charset2lower;
72978+ pax_close_kernel();
72979 return register_nls(&table);
72980 }
72981
72982diff --git a/fs/nls/nls_koi8-ru.c b/fs/nls/nls_koi8-ru.c
72983index a80a741..7b96e1b 100644
72984--- a/fs/nls/nls_koi8-ru.c
72985+++ b/fs/nls/nls_koi8-ru.c
72986@@ -62,8 +62,10 @@ static int __init init_nls_koi8_ru(void)
72987 p_nls = load_nls("koi8-u");
72988
72989 if (p_nls) {
72990- table.charset2upper = p_nls->charset2upper;
72991- table.charset2lower = p_nls->charset2lower;
72992+ pax_open_kernel();
72993+ *(const unsigned char **)&table.charset2upper = p_nls->charset2upper;
72994+ *(const unsigned char **)&table.charset2lower = p_nls->charset2lower;
72995+ pax_close_kernel();
72996 return register_nls(&table);
72997 }
72998
72999diff --git a/fs/notify/fanotify/fanotify_user.c b/fs/notify/fanotify/fanotify_user.c
73000index cf27550..6c70f29d 100644
73001--- a/fs/notify/fanotify/fanotify_user.c
73002+++ b/fs/notify/fanotify/fanotify_user.c
73003@@ -216,8 +216,8 @@ static ssize_t copy_event_to_user(struct fsnotify_group *group,
73004
73005 fd = fanotify_event_metadata.fd;
73006 ret = -EFAULT;
73007- if (copy_to_user(buf, &fanotify_event_metadata,
73008- fanotify_event_metadata.event_len))
73009+ if (fanotify_event_metadata.event_len > sizeof fanotify_event_metadata ||
73010+ copy_to_user(buf, &fanotify_event_metadata, fanotify_event_metadata.event_len))
73011 goto out_close_fd;
73012
73013 #ifdef CONFIG_FANOTIFY_ACCESS_PERMISSIONS
73014diff --git a/fs/notify/notification.c b/fs/notify/notification.c
73015index a95d8e0..a91a5fd 100644
73016--- a/fs/notify/notification.c
73017+++ b/fs/notify/notification.c
73018@@ -48,7 +48,7 @@
73019 #include <linux/fsnotify_backend.h>
73020 #include "fsnotify.h"
73021
73022-static atomic_t fsnotify_sync_cookie = ATOMIC_INIT(0);
73023+static atomic_unchecked_t fsnotify_sync_cookie = ATOMIC_INIT(0);
73024
73025 /**
73026 * fsnotify_get_cookie - return a unique cookie for use in synchronizing events.
73027@@ -56,7 +56,7 @@ static atomic_t fsnotify_sync_cookie = ATOMIC_INIT(0);
73028 */
73029 u32 fsnotify_get_cookie(void)
73030 {
73031- return atomic_inc_return(&fsnotify_sync_cookie);
73032+ return atomic_inc_return_unchecked(&fsnotify_sync_cookie);
73033 }
73034 EXPORT_SYMBOL_GPL(fsnotify_get_cookie);
73035
73036diff --git a/fs/ntfs/dir.c b/fs/ntfs/dir.c
73037index 9e38daf..5727cae 100644
73038--- a/fs/ntfs/dir.c
73039+++ b/fs/ntfs/dir.c
73040@@ -1310,7 +1310,7 @@ find_next_index_buffer:
73041 ia = (INDEX_ALLOCATION*)(kaddr + (ia_pos & ~PAGE_CACHE_MASK &
73042 ~(s64)(ndir->itype.index.block_size - 1)));
73043 /* Bounds checks. */
73044- if (unlikely((u8*)ia < kaddr || (u8*)ia > kaddr + PAGE_CACHE_SIZE)) {
73045+ if (unlikely(!kaddr || (u8*)ia < kaddr || (u8*)ia > kaddr + PAGE_CACHE_SIZE)) {
73046 ntfs_error(sb, "Out of bounds check failed. Corrupt directory "
73047 "inode 0x%lx or driver bug.", vdir->i_ino);
73048 goto err_out;
73049diff --git a/fs/ntfs/file.c b/fs/ntfs/file.c
73050index 1da9b2d..9cca092a 100644
73051--- a/fs/ntfs/file.c
73052+++ b/fs/ntfs/file.c
73053@@ -1281,7 +1281,7 @@ static inline size_t ntfs_copy_from_user(struct page **pages,
73054 char *addr;
73055 size_t total = 0;
73056 unsigned len;
73057- int left;
73058+ unsigned left;
73059
73060 do {
73061 len = PAGE_CACHE_SIZE - ofs;
73062diff --git a/fs/ntfs/super.c b/fs/ntfs/super.c
73063index 9e1e112..241a52a 100644
73064--- a/fs/ntfs/super.c
73065+++ b/fs/ntfs/super.c
73066@@ -688,7 +688,7 @@ static struct buffer_head *read_ntfs_boot_sector(struct super_block *sb,
73067 if (!silent)
73068 ntfs_error(sb, "Primary boot sector is invalid.");
73069 } else if (!silent)
73070- ntfs_error(sb, read_err_str, "primary");
73071+ ntfs_error(sb, read_err_str, "%s", "primary");
73072 if (!(NTFS_SB(sb)->on_errors & ON_ERRORS_RECOVER)) {
73073 if (bh_primary)
73074 brelse(bh_primary);
73075@@ -704,7 +704,7 @@ static struct buffer_head *read_ntfs_boot_sector(struct super_block *sb,
73076 goto hotfix_primary_boot_sector;
73077 brelse(bh_backup);
73078 } else if (!silent)
73079- ntfs_error(sb, read_err_str, "backup");
73080+ ntfs_error(sb, read_err_str, "%s", "backup");
73081 /* Try to read NT3.51- backup boot sector. */
73082 if ((bh_backup = sb_bread(sb, nr_blocks >> 1))) {
73083 if (is_boot_sector_ntfs(sb, (NTFS_BOOT_SECTOR*)
73084@@ -715,7 +715,7 @@ static struct buffer_head *read_ntfs_boot_sector(struct super_block *sb,
73085 "sector.");
73086 brelse(bh_backup);
73087 } else if (!silent)
73088- ntfs_error(sb, read_err_str, "backup");
73089+ ntfs_error(sb, read_err_str, "%s", "backup");
73090 /* We failed. Cleanup and return. */
73091 if (bh_primary)
73092 brelse(bh_primary);
73093diff --git a/fs/ocfs2/localalloc.c b/fs/ocfs2/localalloc.c
73094index 0440134..d52c93a 100644
73095--- a/fs/ocfs2/localalloc.c
73096+++ b/fs/ocfs2/localalloc.c
73097@@ -1320,7 +1320,7 @@ static int ocfs2_local_alloc_slide_window(struct ocfs2_super *osb,
73098 goto bail;
73099 }
73100
73101- atomic_inc(&osb->alloc_stats.moves);
73102+ atomic_inc_unchecked(&osb->alloc_stats.moves);
73103
73104 bail:
73105 if (handle)
73106diff --git a/fs/ocfs2/ocfs2.h b/fs/ocfs2/ocfs2.h
73107index 460c6c3..b4ef513 100644
73108--- a/fs/ocfs2/ocfs2.h
73109+++ b/fs/ocfs2/ocfs2.h
73110@@ -247,11 +247,11 @@ enum ocfs2_vol_state
73111
73112 struct ocfs2_alloc_stats
73113 {
73114- atomic_t moves;
73115- atomic_t local_data;
73116- atomic_t bitmap_data;
73117- atomic_t bg_allocs;
73118- atomic_t bg_extends;
73119+ atomic_unchecked_t moves;
73120+ atomic_unchecked_t local_data;
73121+ atomic_unchecked_t bitmap_data;
73122+ atomic_unchecked_t bg_allocs;
73123+ atomic_unchecked_t bg_extends;
73124 };
73125
73126 enum ocfs2_local_alloc_state
73127diff --git a/fs/ocfs2/refcounttree.c b/fs/ocfs2/refcounttree.c
73128index ee541f9..df3a500 100644
73129--- a/fs/ocfs2/refcounttree.c
73130+++ b/fs/ocfs2/refcounttree.c
73131@@ -4276,7 +4276,7 @@ static int ocfs2_reflink(struct dentry *old_dentry, struct inode *dir,
73132 error = posix_acl_create(dir, &mode, &default_acl, &acl);
73133 if (error) {
73134 mlog_errno(error);
73135- goto out;
73136+ return error;
73137 }
73138
73139 error = ocfs2_create_inode_in_orphan(dir, mode,
73140diff --git a/fs/ocfs2/suballoc.c b/fs/ocfs2/suballoc.c
73141index 0cb889a..6a26b24 100644
73142--- a/fs/ocfs2/suballoc.c
73143+++ b/fs/ocfs2/suballoc.c
73144@@ -867,7 +867,7 @@ static int ocfs2_reserve_suballoc_bits(struct ocfs2_super *osb,
73145 mlog_errno(status);
73146 goto bail;
73147 }
73148- atomic_inc(&osb->alloc_stats.bg_extends);
73149+ atomic_inc_unchecked(&osb->alloc_stats.bg_extends);
73150
73151 /* You should never ask for this much metadata */
73152 BUG_ON(bits_wanted >
73153@@ -2014,7 +2014,7 @@ int ocfs2_claim_metadata(handle_t *handle,
73154 mlog_errno(status);
73155 goto bail;
73156 }
73157- atomic_inc(&OCFS2_SB(ac->ac_inode->i_sb)->alloc_stats.bg_allocs);
73158+ atomic_inc_unchecked(&OCFS2_SB(ac->ac_inode->i_sb)->alloc_stats.bg_allocs);
73159
73160 *suballoc_loc = res.sr_bg_blkno;
73161 *suballoc_bit_start = res.sr_bit_offset;
73162@@ -2180,7 +2180,7 @@ int ocfs2_claim_new_inode_at_loc(handle_t *handle,
73163 trace_ocfs2_claim_new_inode_at_loc((unsigned long long)di_blkno,
73164 res->sr_bits);
73165
73166- atomic_inc(&OCFS2_SB(ac->ac_inode->i_sb)->alloc_stats.bg_allocs);
73167+ atomic_inc_unchecked(&OCFS2_SB(ac->ac_inode->i_sb)->alloc_stats.bg_allocs);
73168
73169 BUG_ON(res->sr_bits != 1);
73170
73171@@ -2222,7 +2222,7 @@ int ocfs2_claim_new_inode(handle_t *handle,
73172 mlog_errno(status);
73173 goto bail;
73174 }
73175- atomic_inc(&OCFS2_SB(ac->ac_inode->i_sb)->alloc_stats.bg_allocs);
73176+ atomic_inc_unchecked(&OCFS2_SB(ac->ac_inode->i_sb)->alloc_stats.bg_allocs);
73177
73178 BUG_ON(res.sr_bits != 1);
73179
73180@@ -2326,7 +2326,7 @@ int __ocfs2_claim_clusters(handle_t *handle,
73181 cluster_start,
73182 num_clusters);
73183 if (!status)
73184- atomic_inc(&osb->alloc_stats.local_data);
73185+ atomic_inc_unchecked(&osb->alloc_stats.local_data);
73186 } else {
73187 if (min_clusters > (osb->bitmap_cpg - 1)) {
73188 /* The only paths asking for contiguousness
73189@@ -2352,7 +2352,7 @@ int __ocfs2_claim_clusters(handle_t *handle,
73190 ocfs2_desc_bitmap_to_cluster_off(ac->ac_inode,
73191 res.sr_bg_blkno,
73192 res.sr_bit_offset);
73193- atomic_inc(&osb->alloc_stats.bitmap_data);
73194+ atomic_inc_unchecked(&osb->alloc_stats.bitmap_data);
73195 *num_clusters = res.sr_bits;
73196 }
73197 }
73198diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c
73199index 2667518..24bcf79 100644
73200--- a/fs/ocfs2/super.c
73201+++ b/fs/ocfs2/super.c
73202@@ -308,11 +308,11 @@ static int ocfs2_osb_dump(struct ocfs2_super *osb, char *buf, int len)
73203 "%10s => GlobalAllocs: %d LocalAllocs: %d "
73204 "SubAllocs: %d LAWinMoves: %d SAExtends: %d\n",
73205 "Stats",
73206- atomic_read(&osb->alloc_stats.bitmap_data),
73207- atomic_read(&osb->alloc_stats.local_data),
73208- atomic_read(&osb->alloc_stats.bg_allocs),
73209- atomic_read(&osb->alloc_stats.moves),
73210- atomic_read(&osb->alloc_stats.bg_extends));
73211+ atomic_read_unchecked(&osb->alloc_stats.bitmap_data),
73212+ atomic_read_unchecked(&osb->alloc_stats.local_data),
73213+ atomic_read_unchecked(&osb->alloc_stats.bg_allocs),
73214+ atomic_read_unchecked(&osb->alloc_stats.moves),
73215+ atomic_read_unchecked(&osb->alloc_stats.bg_extends));
73216
73217 out += snprintf(buf + out, len - out,
73218 "%10s => State: %u Descriptor: %llu Size: %u bits "
73219@@ -2093,11 +2093,11 @@ static int ocfs2_initialize_super(struct super_block *sb,
73220
73221 mutex_init(&osb->system_file_mutex);
73222
73223- atomic_set(&osb->alloc_stats.moves, 0);
73224- atomic_set(&osb->alloc_stats.local_data, 0);
73225- atomic_set(&osb->alloc_stats.bitmap_data, 0);
73226- atomic_set(&osb->alloc_stats.bg_allocs, 0);
73227- atomic_set(&osb->alloc_stats.bg_extends, 0);
73228+ atomic_set_unchecked(&osb->alloc_stats.moves, 0);
73229+ atomic_set_unchecked(&osb->alloc_stats.local_data, 0);
73230+ atomic_set_unchecked(&osb->alloc_stats.bitmap_data, 0);
73231+ atomic_set_unchecked(&osb->alloc_stats.bg_allocs, 0);
73232+ atomic_set_unchecked(&osb->alloc_stats.bg_extends, 0);
73233
73234 /* Copy the blockcheck stats from the superblock probe */
73235 osb->osb_ecc_stats = *stats;
73236diff --git a/fs/open.c b/fs/open.c
73237index 44a3be1..5e97aa1 100644
73238--- a/fs/open.c
73239+++ b/fs/open.c
73240@@ -32,6 +32,8 @@
73241 #include <linux/dnotify.h>
73242 #include <linux/compat.h>
73243
73244+#define CREATE_TRACE_POINTS
73245+#include <trace/events/fs.h>
73246 #include "internal.h"
73247
73248 int do_truncate(struct dentry *dentry, loff_t length, unsigned int time_attrs,
73249@@ -103,6 +105,8 @@ long vfs_truncate(struct path *path, loff_t length)
73250 error = locks_verify_truncate(inode, NULL, length);
73251 if (!error)
73252 error = security_path_truncate(path);
73253+ if (!error && !gr_acl_handle_truncate(path->dentry, path->mnt))
73254+ error = -EACCES;
73255 if (!error)
73256 error = do_truncate(path->dentry, length, 0, NULL);
73257
73258@@ -187,6 +191,8 @@ static long do_sys_ftruncate(unsigned int fd, loff_t length, int small)
73259 error = locks_verify_truncate(inode, f.file, length);
73260 if (!error)
73261 error = security_path_truncate(&f.file->f_path);
73262+ if (!error && !gr_acl_handle_truncate(f.file->f_path.dentry, f.file->f_path.mnt))
73263+ error = -EACCES;
73264 if (!error)
73265 error = do_truncate(dentry, length, ATTR_MTIME|ATTR_CTIME, f.file);
73266 sb_end_write(inode->i_sb);
73267@@ -392,6 +398,9 @@ retry:
73268 if (__mnt_is_readonly(path.mnt))
73269 res = -EROFS;
73270
73271+ if (!res && !gr_acl_handle_access(path.dentry, path.mnt, mode))
73272+ res = -EACCES;
73273+
73274 out_path_release:
73275 path_put(&path);
73276 if (retry_estale(res, lookup_flags)) {
73277@@ -423,6 +432,8 @@ retry:
73278 if (error)
73279 goto dput_and_out;
73280
73281+ gr_log_chdir(path.dentry, path.mnt);
73282+
73283 set_fs_pwd(current->fs, &path);
73284
73285 dput_and_out:
73286@@ -452,6 +463,13 @@ SYSCALL_DEFINE1(fchdir, unsigned int, fd)
73287 goto out_putf;
73288
73289 error = inode_permission(inode, MAY_EXEC | MAY_CHDIR);
73290+
73291+ if (!error && !gr_chroot_fchdir(f.file->f_path.dentry, f.file->f_path.mnt))
73292+ error = -EPERM;
73293+
73294+ if (!error)
73295+ gr_log_chdir(f.file->f_path.dentry, f.file->f_path.mnt);
73296+
73297 if (!error)
73298 set_fs_pwd(current->fs, &f.file->f_path);
73299 out_putf:
73300@@ -481,7 +499,13 @@ retry:
73301 if (error)
73302 goto dput_and_out;
73303
73304+ if (gr_handle_chroot_chroot(path.dentry, path.mnt))
73305+ goto dput_and_out;
73306+
73307 set_fs_root(current->fs, &path);
73308+
73309+ gr_handle_chroot_chdir(&path);
73310+
73311 error = 0;
73312 dput_and_out:
73313 path_put(&path);
73314@@ -505,6 +529,16 @@ static int chmod_common(struct path *path, umode_t mode)
73315 return error;
73316 retry_deleg:
73317 mutex_lock(&inode->i_mutex);
73318+
73319+ if (!gr_acl_handle_chmod(path->dentry, path->mnt, &mode)) {
73320+ error = -EACCES;
73321+ goto out_unlock;
73322+ }
73323+ if (gr_handle_chroot_chmod(path->dentry, path->mnt, mode)) {
73324+ error = -EACCES;
73325+ goto out_unlock;
73326+ }
73327+
73328 error = security_path_chmod(path, mode);
73329 if (error)
73330 goto out_unlock;
73331@@ -570,6 +604,9 @@ static int chown_common(struct path *path, uid_t user, gid_t group)
73332 uid = make_kuid(current_user_ns(), user);
73333 gid = make_kgid(current_user_ns(), group);
73334
73335+ if (!gr_acl_handle_chown(path->dentry, path->mnt))
73336+ return -EACCES;
73337+
73338 retry_deleg:
73339 newattrs.ia_valid = ATTR_CTIME;
73340 if (user != (uid_t) -1) {
73341@@ -1017,6 +1054,7 @@ long do_sys_open(int dfd, const char __user *filename, int flags, umode_t mode)
73342 } else {
73343 fsnotify_open(f);
73344 fd_install(fd, f);
73345+ trace_do_sys_open(tmp->name, flags, mode);
73346 }
73347 }
73348 putname(tmp);
73349diff --git a/fs/overlayfs/super.c b/fs/overlayfs/super.c
73350index bf8537c..c16ef7d 100644
73351--- a/fs/overlayfs/super.c
73352+++ b/fs/overlayfs/super.c
73353@@ -172,7 +172,7 @@ void ovl_path_lower(struct dentry *dentry, struct path *path)
73354 {
73355 struct ovl_entry *oe = dentry->d_fsdata;
73356
73357- *path = oe->numlower ? oe->lowerstack[0] : (struct path) { NULL, NULL };
73358+ *path = oe->numlower ? oe->lowerstack[0] : (struct path) { .dentry = NULL, .mnt = NULL };
73359 }
73360
73361 int ovl_want_write(struct dentry *dentry)
73362@@ -816,8 +816,8 @@ static unsigned int ovl_split_lowerdirs(char *str)
73363
73364 static int ovl_fill_super(struct super_block *sb, void *data, int silent)
73365 {
73366- struct path upperpath = { NULL, NULL };
73367- struct path workpath = { NULL, NULL };
73368+ struct path upperpath = { .dentry = NULL, .mnt = NULL };
73369+ struct path workpath = { .dentry = NULL, .mnt = NULL };
73370 struct dentry *root_dentry;
73371 struct ovl_entry *oe;
73372 struct ovl_fs *ufs;
73373diff --git a/fs/pipe.c b/fs/pipe.c
73374index 21981e5..2c0bffb 100644
73375--- a/fs/pipe.c
73376+++ b/fs/pipe.c
73377@@ -37,7 +37,7 @@ unsigned int pipe_max_size = 1048576;
73378 /*
73379 * Minimum pipe size, as required by POSIX
73380 */
73381-unsigned int pipe_min_size = PAGE_SIZE;
73382+unsigned int pipe_min_size __read_only = PAGE_SIZE;
73383
73384 /*
73385 * We use a start+len construction, which provides full use of the
73386@@ -56,7 +56,7 @@ unsigned int pipe_min_size = PAGE_SIZE;
73387
73388 static void pipe_lock_nested(struct pipe_inode_info *pipe, int subclass)
73389 {
73390- if (pipe->files)
73391+ if (atomic_read(&pipe->files))
73392 mutex_lock_nested(&pipe->mutex, subclass);
73393 }
73394
73395@@ -71,7 +71,7 @@ EXPORT_SYMBOL(pipe_lock);
73396
73397 void pipe_unlock(struct pipe_inode_info *pipe)
73398 {
73399- if (pipe->files)
73400+ if (atomic_read(&pipe->files))
73401 mutex_unlock(&pipe->mutex);
73402 }
73403 EXPORT_SYMBOL(pipe_unlock);
73404@@ -292,9 +292,9 @@ pipe_read(struct kiocb *iocb, struct iov_iter *to)
73405 }
73406 if (bufs) /* More to do? */
73407 continue;
73408- if (!pipe->writers)
73409+ if (!atomic_read(&pipe->writers))
73410 break;
73411- if (!pipe->waiting_writers) {
73412+ if (!atomic_read(&pipe->waiting_writers)) {
73413 /* syscall merging: Usually we must not sleep
73414 * if O_NONBLOCK is set, or if we got some data.
73415 * But if a writer sleeps in kernel space, then
73416@@ -351,7 +351,7 @@ pipe_write(struct kiocb *iocb, struct iov_iter *from)
73417
73418 __pipe_lock(pipe);
73419
73420- if (!pipe->readers) {
73421+ if (!atomic_read(&pipe->readers)) {
73422 send_sig(SIGPIPE, current, 0);
73423 ret = -EPIPE;
73424 goto out;
73425@@ -387,7 +387,7 @@ pipe_write(struct kiocb *iocb, struct iov_iter *from)
73426 for (;;) {
73427 int bufs;
73428
73429- if (!pipe->readers) {
73430+ if (!atomic_read(&pipe->readers)) {
73431 send_sig(SIGPIPE, current, 0);
73432 if (!ret)
73433 ret = -EPIPE;
73434@@ -455,9 +455,9 @@ pipe_write(struct kiocb *iocb, struct iov_iter *from)
73435 kill_fasync(&pipe->fasync_readers, SIGIO, POLL_IN);
73436 do_wakeup = 0;
73437 }
73438- pipe->waiting_writers++;
73439+ atomic_inc(&pipe->waiting_writers);
73440 pipe_wait(pipe);
73441- pipe->waiting_writers--;
73442+ atomic_dec(&pipe->waiting_writers);
73443 }
73444 out:
73445 __pipe_unlock(pipe);
73446@@ -512,7 +512,7 @@ pipe_poll(struct file *filp, poll_table *wait)
73447 mask = 0;
73448 if (filp->f_mode & FMODE_READ) {
73449 mask = (nrbufs > 0) ? POLLIN | POLLRDNORM : 0;
73450- if (!pipe->writers && filp->f_version != pipe->w_counter)
73451+ if (!atomic_read(&pipe->writers) && filp->f_version != pipe->w_counter)
73452 mask |= POLLHUP;
73453 }
73454
73455@@ -522,7 +522,7 @@ pipe_poll(struct file *filp, poll_table *wait)
73456 * Most Unices do not set POLLERR for FIFOs but on Linux they
73457 * behave exactly like pipes for poll().
73458 */
73459- if (!pipe->readers)
73460+ if (!atomic_read(&pipe->readers))
73461 mask |= POLLERR;
73462 }
73463
73464@@ -534,7 +534,7 @@ static void put_pipe_info(struct inode *inode, struct pipe_inode_info *pipe)
73465 int kill = 0;
73466
73467 spin_lock(&inode->i_lock);
73468- if (!--pipe->files) {
73469+ if (atomic_dec_and_test(&pipe->files)) {
73470 inode->i_pipe = NULL;
73471 kill = 1;
73472 }
73473@@ -551,11 +551,11 @@ pipe_release(struct inode *inode, struct file *file)
73474
73475 __pipe_lock(pipe);
73476 if (file->f_mode & FMODE_READ)
73477- pipe->readers--;
73478+ atomic_dec(&pipe->readers);
73479 if (file->f_mode & FMODE_WRITE)
73480- pipe->writers--;
73481+ atomic_dec(&pipe->writers);
73482
73483- if (pipe->readers || pipe->writers) {
73484+ if (atomic_read(&pipe->readers) || atomic_read(&pipe->writers)) {
73485 wake_up_interruptible_sync_poll(&pipe->wait, POLLIN | POLLOUT | POLLRDNORM | POLLWRNORM | POLLERR | POLLHUP);
73486 kill_fasync(&pipe->fasync_readers, SIGIO, POLL_IN);
73487 kill_fasync(&pipe->fasync_writers, SIGIO, POLL_OUT);
73488@@ -620,7 +620,7 @@ void free_pipe_info(struct pipe_inode_info *pipe)
73489 kfree(pipe);
73490 }
73491
73492-static struct vfsmount *pipe_mnt __read_mostly;
73493+struct vfsmount *pipe_mnt __read_mostly;
73494
73495 /*
73496 * pipefs_dname() is called from d_path().
73497@@ -650,8 +650,9 @@ static struct inode * get_pipe_inode(void)
73498 goto fail_iput;
73499
73500 inode->i_pipe = pipe;
73501- pipe->files = 2;
73502- pipe->readers = pipe->writers = 1;
73503+ atomic_set(&pipe->files, 2);
73504+ atomic_set(&pipe->readers, 1);
73505+ atomic_set(&pipe->writers, 1);
73506 inode->i_fop = &pipefifo_fops;
73507
73508 /*
73509@@ -830,17 +831,17 @@ static int fifo_open(struct inode *inode, struct file *filp)
73510 spin_lock(&inode->i_lock);
73511 if (inode->i_pipe) {
73512 pipe = inode->i_pipe;
73513- pipe->files++;
73514+ atomic_inc(&pipe->files);
73515 spin_unlock(&inode->i_lock);
73516 } else {
73517 spin_unlock(&inode->i_lock);
73518 pipe = alloc_pipe_info();
73519 if (!pipe)
73520 return -ENOMEM;
73521- pipe->files = 1;
73522+ atomic_set(&pipe->files, 1);
73523 spin_lock(&inode->i_lock);
73524 if (unlikely(inode->i_pipe)) {
73525- inode->i_pipe->files++;
73526+ atomic_inc(&inode->i_pipe->files);
73527 spin_unlock(&inode->i_lock);
73528 free_pipe_info(pipe);
73529 pipe = inode->i_pipe;
73530@@ -865,10 +866,10 @@ static int fifo_open(struct inode *inode, struct file *filp)
73531 * opened, even when there is no process writing the FIFO.
73532 */
73533 pipe->r_counter++;
73534- if (pipe->readers++ == 0)
73535+ if (atomic_inc_return(&pipe->readers) == 1)
73536 wake_up_partner(pipe);
73537
73538- if (!is_pipe && !pipe->writers) {
73539+ if (!is_pipe && !atomic_read(&pipe->writers)) {
73540 if ((filp->f_flags & O_NONBLOCK)) {
73541 /* suppress POLLHUP until we have
73542 * seen a writer */
73543@@ -887,14 +888,14 @@ static int fifo_open(struct inode *inode, struct file *filp)
73544 * errno=ENXIO when there is no process reading the FIFO.
73545 */
73546 ret = -ENXIO;
73547- if (!is_pipe && (filp->f_flags & O_NONBLOCK) && !pipe->readers)
73548+ if (!is_pipe && (filp->f_flags & O_NONBLOCK) && !atomic_read(&pipe->readers))
73549 goto err;
73550
73551 pipe->w_counter++;
73552- if (!pipe->writers++)
73553+ if (atomic_inc_return(&pipe->writers) == 1)
73554 wake_up_partner(pipe);
73555
73556- if (!is_pipe && !pipe->readers) {
73557+ if (!is_pipe && !atomic_read(&pipe->readers)) {
73558 if (wait_for_partner(pipe, &pipe->r_counter))
73559 goto err_wr;
73560 }
73561@@ -908,11 +909,11 @@ static int fifo_open(struct inode *inode, struct file *filp)
73562 * the process can at least talk to itself.
73563 */
73564
73565- pipe->readers++;
73566- pipe->writers++;
73567+ atomic_inc(&pipe->readers);
73568+ atomic_inc(&pipe->writers);
73569 pipe->r_counter++;
73570 pipe->w_counter++;
73571- if (pipe->readers == 1 || pipe->writers == 1)
73572+ if (atomic_read(&pipe->readers) == 1 || atomic_read(&pipe->writers) == 1)
73573 wake_up_partner(pipe);
73574 break;
73575
73576@@ -926,13 +927,13 @@ static int fifo_open(struct inode *inode, struct file *filp)
73577 return 0;
73578
73579 err_rd:
73580- if (!--pipe->readers)
73581+ if (atomic_dec_and_test(&pipe->readers))
73582 wake_up_interruptible(&pipe->wait);
73583 ret = -ERESTARTSYS;
73584 goto err;
73585
73586 err_wr:
73587- if (!--pipe->writers)
73588+ if (atomic_dec_and_test(&pipe->writers))
73589 wake_up_interruptible(&pipe->wait);
73590 ret = -ERESTARTSYS;
73591 goto err;
73592@@ -1010,7 +1011,7 @@ static long pipe_set_size(struct pipe_inode_info *pipe, unsigned long nr_pages)
73593 * Currently we rely on the pipe array holding a power-of-2 number
73594 * of pages.
73595 */
73596-static inline unsigned int round_pipe_size(unsigned int size)
73597+static inline unsigned long round_pipe_size(unsigned long size)
73598 {
73599 unsigned long nr_pages;
73600
73601@@ -1058,13 +1059,16 @@ long pipe_fcntl(struct file *file, unsigned int cmd, unsigned long arg)
73602
73603 switch (cmd) {
73604 case F_SETPIPE_SZ: {
73605- unsigned int size, nr_pages;
73606+ unsigned long size, nr_pages;
73607+
73608+ ret = -EINVAL;
73609+ if (arg < pipe_min_size)
73610+ goto out;
73611
73612 size = round_pipe_size(arg);
73613 nr_pages = size >> PAGE_SHIFT;
73614
73615- ret = -EINVAL;
73616- if (!nr_pages)
73617+ if (size < pipe_min_size)
73618 goto out;
73619
73620 if (!capable(CAP_SYS_RESOURCE) && size > pipe_max_size) {
73621diff --git a/fs/posix_acl.c b/fs/posix_acl.c
73622index 3a48bb7..403067b 100644
73623--- a/fs/posix_acl.c
73624+++ b/fs/posix_acl.c
73625@@ -20,6 +20,7 @@
73626 #include <linux/xattr.h>
73627 #include <linux/export.h>
73628 #include <linux/user_namespace.h>
73629+#include <linux/grsecurity.h>
73630
73631 struct posix_acl **acl_by_type(struct inode *inode, int type)
73632 {
73633@@ -277,7 +278,7 @@ posix_acl_equiv_mode(const struct posix_acl *acl, umode_t *mode_p)
73634 }
73635 }
73636 if (mode_p)
73637- *mode_p = (*mode_p & ~S_IRWXUGO) | mode;
73638+ *mode_p = ((*mode_p & ~S_IRWXUGO) | mode) & ~gr_acl_umask();
73639 return not_equiv;
73640 }
73641 EXPORT_SYMBOL(posix_acl_equiv_mode);
73642@@ -427,7 +428,7 @@ static int posix_acl_create_masq(struct posix_acl *acl, umode_t *mode_p)
73643 mode &= (group_obj->e_perm << 3) | ~S_IRWXG;
73644 }
73645
73646- *mode_p = (*mode_p & ~S_IRWXUGO) | mode;
73647+ *mode_p = ((*mode_p & ~S_IRWXUGO) | mode) & ~gr_acl_umask();
73648 return not_equiv;
73649 }
73650
73651@@ -485,6 +486,8 @@ __posix_acl_create(struct posix_acl **acl, gfp_t gfp, umode_t *mode_p)
73652 struct posix_acl *clone = posix_acl_clone(*acl, gfp);
73653 int err = -ENOMEM;
73654 if (clone) {
73655+ *mode_p &= ~gr_acl_umask();
73656+
73657 err = posix_acl_create_masq(clone, mode_p);
73658 if (err < 0) {
73659 posix_acl_release(clone);
73660@@ -663,11 +666,12 @@ struct posix_acl *
73661 posix_acl_from_xattr(struct user_namespace *user_ns,
73662 const void *value, size_t size)
73663 {
73664- posix_acl_xattr_header *header = (posix_acl_xattr_header *)value;
73665- posix_acl_xattr_entry *entry = (posix_acl_xattr_entry *)(header+1), *end;
73666+ const posix_acl_xattr_header *header = (const posix_acl_xattr_header *)value;
73667+ const posix_acl_xattr_entry *entry = (const posix_acl_xattr_entry *)(header+1), *end;
73668 int count;
73669 struct posix_acl *acl;
73670 struct posix_acl_entry *acl_e;
73671+ umode_t umask = gr_acl_umask();
73672
73673 if (!value)
73674 return NULL;
73675@@ -693,12 +697,18 @@ posix_acl_from_xattr(struct user_namespace *user_ns,
73676
73677 switch(acl_e->e_tag) {
73678 case ACL_USER_OBJ:
73679+ acl_e->e_perm &= ~((umask & S_IRWXU) >> 6);
73680+ break;
73681 case ACL_GROUP_OBJ:
73682 case ACL_MASK:
73683+ acl_e->e_perm &= ~((umask & S_IRWXG) >> 3);
73684+ break;
73685 case ACL_OTHER:
73686+ acl_e->e_perm &= ~(umask & S_IRWXO);
73687 break;
73688
73689 case ACL_USER:
73690+ acl_e->e_perm &= ~((umask & S_IRWXU) >> 6);
73691 acl_e->e_uid =
73692 make_kuid(user_ns,
73693 le32_to_cpu(entry->e_id));
73694@@ -706,6 +716,7 @@ posix_acl_from_xattr(struct user_namespace *user_ns,
73695 goto fail;
73696 break;
73697 case ACL_GROUP:
73698+ acl_e->e_perm &= ~((umask & S_IRWXG) >> 3);
73699 acl_e->e_gid =
73700 make_kgid(user_ns,
73701 le32_to_cpu(entry->e_id));
73702diff --git a/fs/proc/Kconfig b/fs/proc/Kconfig
73703index 2183fcf..3c32a98 100644
73704--- a/fs/proc/Kconfig
73705+++ b/fs/proc/Kconfig
73706@@ -30,7 +30,7 @@ config PROC_FS
73707
73708 config PROC_KCORE
73709 bool "/proc/kcore support" if !ARM
73710- depends on PROC_FS && MMU
73711+ depends on PROC_FS && MMU && !GRKERNSEC_PROC_ADD
73712 help
73713 Provides a virtual ELF core file of the live kernel. This can
73714 be read with gdb and other ELF tools. No modifications can be
73715@@ -38,8 +38,8 @@ config PROC_KCORE
73716
73717 config PROC_VMCORE
73718 bool "/proc/vmcore support"
73719- depends on PROC_FS && CRASH_DUMP
73720- default y
73721+ depends on PROC_FS && CRASH_DUMP && !GRKERNSEC
73722+ default n
73723 help
73724 Exports the dump image of crashed kernel in ELF format.
73725
73726@@ -63,8 +63,8 @@ config PROC_SYSCTL
73727 limited in memory.
73728
73729 config PROC_PAGE_MONITOR
73730- default y
73731- depends on PROC_FS && MMU
73732+ default n
73733+ depends on PROC_FS && MMU && !GRKERNSEC
73734 bool "Enable /proc page monitoring" if EXPERT
73735 help
73736 Various /proc files exist to monitor process memory utilization:
73737diff --git a/fs/proc/array.c b/fs/proc/array.c
73738index 1295a00..4c91a6b 100644
73739--- a/fs/proc/array.c
73740+++ b/fs/proc/array.c
73741@@ -60,6 +60,7 @@
73742 #include <linux/tty.h>
73743 #include <linux/string.h>
73744 #include <linux/mman.h>
73745+#include <linux/grsecurity.h>
73746 #include <linux/proc_fs.h>
73747 #include <linux/ioport.h>
73748 #include <linux/uaccess.h>
73749@@ -322,6 +323,21 @@ static void task_cpus_allowed(struct seq_file *m, struct task_struct *task)
73750 cpumask_pr_args(&task->cpus_allowed));
73751 }
73752
73753+#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)
73754+static inline void task_pax(struct seq_file *m, struct task_struct *p)
73755+{
73756+ if (p->mm)
73757+ seq_printf(m, "PaX:\t%c%c%c%c%c\n",
73758+ p->mm->pax_flags & MF_PAX_PAGEEXEC ? 'P' : 'p',
73759+ p->mm->pax_flags & MF_PAX_EMUTRAMP ? 'E' : 'e',
73760+ p->mm->pax_flags & MF_PAX_MPROTECT ? 'M' : 'm',
73761+ p->mm->pax_flags & MF_PAX_RANDMMAP ? 'R' : 'r',
73762+ p->mm->pax_flags & MF_PAX_SEGMEXEC ? 'S' : 's');
73763+ else
73764+ seq_printf(m, "PaX:\t-----\n");
73765+}
73766+#endif
73767+
73768 int proc_pid_status(struct seq_file *m, struct pid_namespace *ns,
73769 struct pid *pid, struct task_struct *task)
73770 {
73771@@ -340,9 +356,24 @@ int proc_pid_status(struct seq_file *m, struct pid_namespace *ns,
73772 task_cpus_allowed(m, task);
73773 cpuset_task_status_allowed(m, task);
73774 task_context_switch_counts(m, task);
73775+
73776+#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)
73777+ task_pax(m, task);
73778+#endif
73779+
73780+#if defined(CONFIG_GRKERNSEC) && !defined(CONFIG_GRKERNSEC_NO_RBAC)
73781+ task_grsec_rbac(m, task);
73782+#endif
73783+
73784 return 0;
73785 }
73786
73787+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
73788+#define PAX_RAND_FLAGS(_mm) (_mm != NULL && _mm != current->mm && \
73789+ (_mm->pax_flags & MF_PAX_RANDMMAP || \
73790+ _mm->pax_flags & MF_PAX_SEGMEXEC))
73791+#endif
73792+
73793 static int do_task_stat(struct seq_file *m, struct pid_namespace *ns,
73794 struct pid *pid, struct task_struct *task, int whole)
73795 {
73796@@ -364,6 +395,13 @@ static int do_task_stat(struct seq_file *m, struct pid_namespace *ns,
73797 char tcomm[sizeof(task->comm)];
73798 unsigned long flags;
73799
73800+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
73801+ if (current->exec_id != m->exec_id) {
73802+ gr_log_badprocpid("stat");
73803+ return 0;
73804+ }
73805+#endif
73806+
73807 state = *get_task_state(task);
73808 vsize = eip = esp = 0;
73809 permitted = ptrace_may_access(task, PTRACE_MODE_READ | PTRACE_MODE_NOAUDIT);
73810@@ -434,6 +472,19 @@ static int do_task_stat(struct seq_file *m, struct pid_namespace *ns,
73811 gtime = task_gtime(task);
73812 }
73813
73814+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
73815+ if (PAX_RAND_FLAGS(mm)) {
73816+ eip = 0;
73817+ esp = 0;
73818+ wchan = 0;
73819+ }
73820+#endif
73821+#ifdef CONFIG_GRKERNSEC_HIDESYM
73822+ wchan = 0;
73823+ eip =0;
73824+ esp =0;
73825+#endif
73826+
73827 /* scale priority and nice values from timeslices to -20..20 */
73828 /* to make it look like a "normal" Unix priority/nice value */
73829 priority = task_prio(task);
73830@@ -465,9 +516,15 @@ static int do_task_stat(struct seq_file *m, struct pid_namespace *ns,
73831 seq_put_decimal_ull(m, ' ', vsize);
73832 seq_put_decimal_ull(m, ' ', mm ? get_mm_rss(mm) : 0);
73833 seq_put_decimal_ull(m, ' ', rsslim);
73834+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
73835+ seq_put_decimal_ull(m, ' ', PAX_RAND_FLAGS(mm) ? 1 : (mm ? (permitted ? mm->start_code : 1) : 0));
73836+ seq_put_decimal_ull(m, ' ', PAX_RAND_FLAGS(mm) ? 1 : (mm ? (permitted ? mm->end_code : 1) : 0));
73837+ seq_put_decimal_ull(m, ' ', PAX_RAND_FLAGS(mm) ? 0 : ((permitted && mm) ? mm->start_stack : 0));
73838+#else
73839 seq_put_decimal_ull(m, ' ', mm ? (permitted ? mm->start_code : 1) : 0);
73840 seq_put_decimal_ull(m, ' ', mm ? (permitted ? mm->end_code : 1) : 0);
73841 seq_put_decimal_ull(m, ' ', (permitted && mm) ? mm->start_stack : 0);
73842+#endif
73843 seq_put_decimal_ull(m, ' ', esp);
73844 seq_put_decimal_ull(m, ' ', eip);
73845 /* The signal information here is obsolete.
73846@@ -489,7 +546,11 @@ static int do_task_stat(struct seq_file *m, struct pid_namespace *ns,
73847 seq_put_decimal_ull(m, ' ', cputime_to_clock_t(gtime));
73848 seq_put_decimal_ll(m, ' ', cputime_to_clock_t(cgtime));
73849
73850- if (mm && permitted) {
73851+ if (mm && permitted
73852+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
73853+ && !PAX_RAND_FLAGS(mm)
73854+#endif
73855+ ) {
73856 seq_put_decimal_ull(m, ' ', mm->start_data);
73857 seq_put_decimal_ull(m, ' ', mm->end_data);
73858 seq_put_decimal_ull(m, ' ', mm->start_brk);
73859@@ -527,8 +588,15 @@ int proc_pid_statm(struct seq_file *m, struct pid_namespace *ns,
73860 struct pid *pid, struct task_struct *task)
73861 {
73862 unsigned long size = 0, resident = 0, shared = 0, text = 0, data = 0;
73863- struct mm_struct *mm = get_task_mm(task);
73864+ struct mm_struct *mm;
73865
73866+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
73867+ if (current->exec_id != m->exec_id) {
73868+ gr_log_badprocpid("statm");
73869+ return 0;
73870+ }
73871+#endif
73872+ mm = get_task_mm(task);
73873 if (mm) {
73874 size = task_statm(mm, &shared, &text, &data, &resident);
73875 mmput(mm);
73876@@ -551,6 +619,20 @@ int proc_pid_statm(struct seq_file *m, struct pid_namespace *ns,
73877 return 0;
73878 }
73879
73880+#ifdef CONFIG_GRKERNSEC_PROC_IPADDR
73881+int proc_pid_ipaddr(struct seq_file *m, struct pid_namespace *ns, struct pid *pid, struct task_struct *task)
73882+{
73883+ unsigned long flags;
73884+ u32 curr_ip = 0;
73885+
73886+ if (lock_task_sighand(task, &flags)) {
73887+ curr_ip = task->signal->curr_ip;
73888+ unlock_task_sighand(task, &flags);
73889+ }
73890+ return seq_printf(m, "%pI4\n", &curr_ip);
73891+}
73892+#endif
73893+
73894 #ifdef CONFIG_CHECKPOINT_RESTORE
73895 static struct pid *
73896 get_children_pid(struct inode *inode, struct pid *pid_prev, loff_t pos)
73897diff --git a/fs/proc/base.c b/fs/proc/base.c
73898index 3f3d7ae..68de109 100644
73899--- a/fs/proc/base.c
73900+++ b/fs/proc/base.c
73901@@ -113,6 +113,14 @@ struct pid_entry {
73902 union proc_op op;
73903 };
73904
73905+struct getdents_callback {
73906+ struct linux_dirent __user * current_dir;
73907+ struct linux_dirent __user * previous;
73908+ struct file * file;
73909+ int count;
73910+ int error;
73911+};
73912+
73913 #define NOD(NAME, MODE, IOP, FOP, OP) { \
73914 .name = (NAME), \
73915 .len = sizeof(NAME) - 1, \
73916@@ -208,12 +216,28 @@ static int proc_pid_cmdline(struct seq_file *m, struct pid_namespace *ns,
73917 return 0;
73918 }
73919
73920+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
73921+#define PAX_RAND_FLAGS(_mm) (_mm != NULL && _mm != current->mm && \
73922+ (_mm->pax_flags & MF_PAX_RANDMMAP || \
73923+ _mm->pax_flags & MF_PAX_SEGMEXEC))
73924+#endif
73925+
73926 static int proc_pid_auxv(struct seq_file *m, struct pid_namespace *ns,
73927 struct pid *pid, struct task_struct *task)
73928 {
73929 struct mm_struct *mm = mm_access(task, PTRACE_MODE_READ);
73930 if (mm && !IS_ERR(mm)) {
73931 unsigned int nwords = 0;
73932+
73933+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
73934+ /* allow if we're currently ptracing this task */
73935+ if (PAX_RAND_FLAGS(mm) &&
73936+ (!(task->ptrace & PT_PTRACED) || (task->parent != current))) {
73937+ mmput(mm);
73938+ return 0;
73939+ }
73940+#endif
73941+
73942 do {
73943 nwords += 2;
73944 } while (mm->saved_auxv[nwords - 2] != 0); /* AT_NULL */
73945@@ -225,7 +249,7 @@ static int proc_pid_auxv(struct seq_file *m, struct pid_namespace *ns,
73946 }
73947
73948
73949-#ifdef CONFIG_KALLSYMS
73950+#if defined(CONFIG_KALLSYMS) && !defined(CONFIG_GRKERNSEC_HIDESYM)
73951 /*
73952 * Provides a wchan file via kallsyms in a proper one-value-per-file format.
73953 * Returns the resolved symbol. If that fails, simply return the address.
73954@@ -265,7 +289,7 @@ static void unlock_trace(struct task_struct *task)
73955 mutex_unlock(&task->signal->cred_guard_mutex);
73956 }
73957
73958-#ifdef CONFIG_STACKTRACE
73959+#if defined(CONFIG_STACKTRACE) && !defined(CONFIG_GRKERNSEC_HIDESYM)
73960
73961 #define MAX_STACK_TRACE_DEPTH 64
73962
73963@@ -456,7 +480,7 @@ static int proc_pid_limits(struct seq_file *m, struct pid_namespace *ns,
73964 return 0;
73965 }
73966
73967-#ifdef CONFIG_HAVE_ARCH_TRACEHOOK
73968+#if defined(CONFIG_HAVE_ARCH_TRACEHOOK) && !defined(CONFIG_GRKERNSEC_PROC_MEMMAP)
73969 static int proc_pid_syscall(struct seq_file *m, struct pid_namespace *ns,
73970 struct pid *pid, struct task_struct *task)
73971 {
73972@@ -486,7 +510,7 @@ static int proc_pid_syscall(struct seq_file *m, struct pid_namespace *ns,
73973 /************************************************************************/
73974
73975 /* permission checks */
73976-static int proc_fd_access_allowed(struct inode *inode)
73977+static int proc_fd_access_allowed(struct inode *inode, unsigned int log)
73978 {
73979 struct task_struct *task;
73980 int allowed = 0;
73981@@ -496,7 +520,10 @@ static int proc_fd_access_allowed(struct inode *inode)
73982 */
73983 task = get_proc_task(inode);
73984 if (task) {
73985- allowed = ptrace_may_access(task, PTRACE_MODE_READ);
73986+ if (log)
73987+ allowed = ptrace_may_access(task, PTRACE_MODE_READ);
73988+ else
73989+ allowed = ptrace_may_access(task, PTRACE_MODE_READ | PTRACE_MODE_NOAUDIT);
73990 put_task_struct(task);
73991 }
73992 return allowed;
73993@@ -527,10 +554,35 @@ static bool has_pid_permissions(struct pid_namespace *pid,
73994 struct task_struct *task,
73995 int hide_pid_min)
73996 {
73997+ if (gr_pid_is_chrooted(task) || gr_check_hidden_task(task))
73998+ return false;
73999+
74000+#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
74001+ rcu_read_lock();
74002+ {
74003+ const struct cred *tmpcred = current_cred();
74004+ const struct cred *cred = __task_cred(task);
74005+
74006+ if (uid_eq(tmpcred->uid, GLOBAL_ROOT_UID) || uid_eq(tmpcred->uid, cred->uid)
74007+#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
74008+ || in_group_p(grsec_proc_gid)
74009+#endif
74010+ ) {
74011+ rcu_read_unlock();
74012+ return true;
74013+ }
74014+ }
74015+ rcu_read_unlock();
74016+
74017+ if (!pid->hide_pid)
74018+ return false;
74019+#endif
74020+
74021 if (pid->hide_pid < hide_pid_min)
74022 return true;
74023 if (in_group_p(pid->pid_gid))
74024 return true;
74025+
74026 return ptrace_may_access(task, PTRACE_MODE_READ);
74027 }
74028
74029@@ -548,7 +600,11 @@ static int proc_pid_permission(struct inode *inode, int mask)
74030 put_task_struct(task);
74031
74032 if (!has_perms) {
74033+#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
74034+ {
74035+#else
74036 if (pid->hide_pid == 2) {
74037+#endif
74038 /*
74039 * Let's make getdents(), stat(), and open()
74040 * consistent with each other. If a process
74041@@ -609,6 +665,10 @@ struct mm_struct *proc_mem_open(struct inode *inode, unsigned int mode)
74042
74043 if (task) {
74044 mm = mm_access(task, mode);
74045+ if (!IS_ERR_OR_NULL(mm) && gr_acl_handle_procpidmem(task)) {
74046+ mmput(mm);
74047+ mm = ERR_PTR(-EPERM);
74048+ }
74049 put_task_struct(task);
74050
74051 if (!IS_ERR_OR_NULL(mm)) {
74052@@ -630,6 +690,11 @@ static int __mem_open(struct inode *inode, struct file *file, unsigned int mode)
74053 return PTR_ERR(mm);
74054
74055 file->private_data = mm;
74056+
74057+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
74058+ file->f_version = current->exec_id;
74059+#endif
74060+
74061 return 0;
74062 }
74063
74064@@ -651,6 +716,17 @@ static ssize_t mem_rw(struct file *file, char __user *buf,
74065 ssize_t copied;
74066 char *page;
74067
74068+#ifdef CONFIG_GRKERNSEC
74069+ if (write)
74070+ return -EPERM;
74071+#endif
74072+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
74073+ if (file->f_version != current->exec_id) {
74074+ gr_log_badprocpid("mem");
74075+ return 0;
74076+ }
74077+#endif
74078+
74079 if (!mm)
74080 return 0;
74081
74082@@ -663,7 +739,7 @@ static ssize_t mem_rw(struct file *file, char __user *buf,
74083 goto free;
74084
74085 while (count > 0) {
74086- int this_len = min_t(int, count, PAGE_SIZE);
74087+ ssize_t this_len = min_t(ssize_t, count, PAGE_SIZE);
74088
74089 if (write && copy_from_user(page, buf, this_len)) {
74090 copied = -EFAULT;
74091@@ -755,6 +831,13 @@ static ssize_t environ_read(struct file *file, char __user *buf,
74092 if (!mm)
74093 return 0;
74094
74095+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
74096+ if (file->f_version != current->exec_id) {
74097+ gr_log_badprocpid("environ");
74098+ return 0;
74099+ }
74100+#endif
74101+
74102 page = (char *)__get_free_page(GFP_TEMPORARY);
74103 if (!page)
74104 return -ENOMEM;
74105@@ -764,7 +847,7 @@ static ssize_t environ_read(struct file *file, char __user *buf,
74106 goto free;
74107 while (count > 0) {
74108 size_t this_len, max_len;
74109- int retval;
74110+ ssize_t retval;
74111
74112 if (src >= (mm->env_end - mm->env_start))
74113 break;
74114@@ -1378,7 +1461,7 @@ static void *proc_pid_follow_link(struct dentry *dentry, struct nameidata *nd)
74115 int error = -EACCES;
74116
74117 /* Are we allowed to snoop on the tasks file descriptors? */
74118- if (!proc_fd_access_allowed(inode))
74119+ if (!proc_fd_access_allowed(inode, 0))
74120 goto out;
74121
74122 error = PROC_I(inode)->op.proc_get_link(dentry, &path);
74123@@ -1422,8 +1505,18 @@ static int proc_pid_readlink(struct dentry * dentry, char __user * buffer, int b
74124 struct path path;
74125
74126 /* Are we allowed to snoop on the tasks file descriptors? */
74127- if (!proc_fd_access_allowed(inode))
74128- goto out;
74129+ /* logging this is needed for learning on chromium to work properly,
74130+ but we don't want to flood the logs from 'ps' which does a readlink
74131+ on /proc/fd/2 of tasks in the listing, nor do we want 'ps' to learn
74132+ CAP_SYS_PTRACE as it's not necessary for its basic functionality
74133+ */
74134+ if (dentry->d_name.name[0] == '2' && dentry->d_name.name[1] == '\0') {
74135+ if (!proc_fd_access_allowed(inode,0))
74136+ goto out;
74137+ } else {
74138+ if (!proc_fd_access_allowed(inode,1))
74139+ goto out;
74140+ }
74141
74142 error = PROC_I(inode)->op.proc_get_link(dentry, &path);
74143 if (error)
74144@@ -1473,7 +1566,11 @@ struct inode *proc_pid_make_inode(struct super_block * sb, struct task_struct *t
74145 rcu_read_lock();
74146 cred = __task_cred(task);
74147 inode->i_uid = cred->euid;
74148+#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
74149+ inode->i_gid = grsec_proc_gid;
74150+#else
74151 inode->i_gid = cred->egid;
74152+#endif
74153 rcu_read_unlock();
74154 }
74155 security_task_to_inode(task, inode);
74156@@ -1509,10 +1606,19 @@ int pid_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat)
74157 return -ENOENT;
74158 }
74159 if ((inode->i_mode == (S_IFDIR|S_IRUGO|S_IXUGO)) ||
74160+#ifdef CONFIG_GRKERNSEC_PROC_USER
74161+ (inode->i_mode == (S_IFDIR|S_IRUSR|S_IXUSR)) ||
74162+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
74163+ (inode->i_mode == (S_IFDIR|S_IRUSR|S_IRGRP|S_IXUSR|S_IXGRP)) ||
74164+#endif
74165 task_dumpable(task)) {
74166 cred = __task_cred(task);
74167 stat->uid = cred->euid;
74168+#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
74169+ stat->gid = grsec_proc_gid;
74170+#else
74171 stat->gid = cred->egid;
74172+#endif
74173 }
74174 }
74175 rcu_read_unlock();
74176@@ -1550,11 +1656,20 @@ int pid_revalidate(struct dentry *dentry, unsigned int flags)
74177
74178 if (task) {
74179 if ((inode->i_mode == (S_IFDIR|S_IRUGO|S_IXUGO)) ||
74180+#ifdef CONFIG_GRKERNSEC_PROC_USER
74181+ (inode->i_mode == (S_IFDIR|S_IRUSR|S_IXUSR)) ||
74182+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
74183+ (inode->i_mode == (S_IFDIR|S_IRUSR|S_IRGRP|S_IXUSR|S_IXGRP)) ||
74184+#endif
74185 task_dumpable(task)) {
74186 rcu_read_lock();
74187 cred = __task_cred(task);
74188 inode->i_uid = cred->euid;
74189+#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
74190+ inode->i_gid = grsec_proc_gid;
74191+#else
74192 inode->i_gid = cred->egid;
74193+#endif
74194 rcu_read_unlock();
74195 } else {
74196 inode->i_uid = GLOBAL_ROOT_UID;
74197@@ -2085,6 +2200,9 @@ static struct dentry *proc_pident_lookup(struct inode *dir,
74198 if (!task)
74199 goto out_no_task;
74200
74201+ if (gr_pid_is_chrooted(task) || gr_check_hidden_task(task))
74202+ goto out;
74203+
74204 /*
74205 * Yes, it does not scale. And it should not. Don't add
74206 * new entries into /proc/<tgid>/ without very good reasons.
74207@@ -2115,6 +2233,9 @@ static int proc_pident_readdir(struct file *file, struct dir_context *ctx,
74208 if (!task)
74209 return -ENOENT;
74210
74211+ if (gr_pid_is_chrooted(task) || gr_check_hidden_task(task))
74212+ goto out;
74213+
74214 if (!dir_emit_dots(file, ctx))
74215 goto out;
74216
74217@@ -2557,7 +2678,7 @@ static const struct pid_entry tgid_base_stuff[] = {
74218 REG("autogroup", S_IRUGO|S_IWUSR, proc_pid_sched_autogroup_operations),
74219 #endif
74220 REG("comm", S_IRUGO|S_IWUSR, proc_pid_set_comm_operations),
74221-#ifdef CONFIG_HAVE_ARCH_TRACEHOOK
74222+#if defined(CONFIG_HAVE_ARCH_TRACEHOOK) && !defined(CONFIG_GRKERNSEC_PROC_MEMMAP)
74223 ONE("syscall", S_IRUSR, proc_pid_syscall),
74224 #endif
74225 ONE("cmdline", S_IRUGO, proc_pid_cmdline),
74226@@ -2582,10 +2703,10 @@ static const struct pid_entry tgid_base_stuff[] = {
74227 #ifdef CONFIG_SECURITY
74228 DIR("attr", S_IRUGO|S_IXUGO, proc_attr_dir_inode_operations, proc_attr_dir_operations),
74229 #endif
74230-#ifdef CONFIG_KALLSYMS
74231+#if defined(CONFIG_KALLSYMS) && !defined(CONFIG_GRKERNSEC_HIDESYM)
74232 ONE("wchan", S_IRUGO, proc_pid_wchan),
74233 #endif
74234-#ifdef CONFIG_STACKTRACE
74235+#if defined(CONFIG_STACKTRACE) && !defined(CONFIG_GRKERNSEC_HIDESYM)
74236 ONE("stack", S_IRUSR, proc_pid_stack),
74237 #endif
74238 #ifdef CONFIG_SCHEDSTATS
74239@@ -2619,6 +2740,9 @@ static const struct pid_entry tgid_base_stuff[] = {
74240 #ifdef CONFIG_HARDWALL
74241 ONE("hardwall", S_IRUGO, proc_pid_hardwall),
74242 #endif
74243+#ifdef CONFIG_GRKERNSEC_PROC_IPADDR
74244+ ONE("ipaddr", S_IRUSR, proc_pid_ipaddr),
74245+#endif
74246 #ifdef CONFIG_USER_NS
74247 REG("uid_map", S_IRUGO|S_IWUSR, proc_uid_map_operations),
74248 REG("gid_map", S_IRUGO|S_IWUSR, proc_gid_map_operations),
74249@@ -2751,7 +2875,14 @@ static int proc_pid_instantiate(struct inode *dir,
74250 if (!inode)
74251 goto out;
74252
74253+#ifdef CONFIG_GRKERNSEC_PROC_USER
74254+ inode->i_mode = S_IFDIR|S_IRUSR|S_IXUSR;
74255+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
74256+ inode->i_gid = grsec_proc_gid;
74257+ inode->i_mode = S_IFDIR|S_IRUSR|S_IRGRP|S_IXUSR|S_IXGRP;
74258+#else
74259 inode->i_mode = S_IFDIR|S_IRUGO|S_IXUGO;
74260+#endif
74261 inode->i_op = &proc_tgid_base_inode_operations;
74262 inode->i_fop = &proc_tgid_base_operations;
74263 inode->i_flags|=S_IMMUTABLE;
74264@@ -2789,7 +2920,11 @@ struct dentry *proc_pid_lookup(struct inode *dir, struct dentry * dentry, unsign
74265 if (!task)
74266 goto out;
74267
74268+ if (gr_pid_is_chrooted(task) || gr_check_hidden_task(task))
74269+ goto out_put_task;
74270+
74271 result = proc_pid_instantiate(dir, dentry, task, NULL);
74272+out_put_task:
74273 put_task_struct(task);
74274 out:
74275 return ERR_PTR(result);
74276@@ -2903,7 +3038,7 @@ static const struct pid_entry tid_base_stuff[] = {
74277 REG("sched", S_IRUGO|S_IWUSR, proc_pid_sched_operations),
74278 #endif
74279 REG("comm", S_IRUGO|S_IWUSR, proc_pid_set_comm_operations),
74280-#ifdef CONFIG_HAVE_ARCH_TRACEHOOK
74281+#if defined(CONFIG_HAVE_ARCH_TRACEHOOK) && !defined(CONFIG_GRKERNSEC_PROC_MEMMAP)
74282 ONE("syscall", S_IRUSR, proc_pid_syscall),
74283 #endif
74284 ONE("cmdline", S_IRUGO, proc_pid_cmdline),
74285@@ -2930,10 +3065,10 @@ static const struct pid_entry tid_base_stuff[] = {
74286 #ifdef CONFIG_SECURITY
74287 DIR("attr", S_IRUGO|S_IXUGO, proc_attr_dir_inode_operations, proc_attr_dir_operations),
74288 #endif
74289-#ifdef CONFIG_KALLSYMS
74290+#if defined(CONFIG_KALLSYMS) && !defined(CONFIG_GRKERNSEC_HIDESYM)
74291 ONE("wchan", S_IRUGO, proc_pid_wchan),
74292 #endif
74293-#ifdef CONFIG_STACKTRACE
74294+#if defined(CONFIG_STACKTRACE) && !defined(CONFIG_GRKERNSEC_HIDESYM)
74295 ONE("stack", S_IRUSR, proc_pid_stack),
74296 #endif
74297 #ifdef CONFIG_SCHEDSTATS
74298diff --git a/fs/proc/cmdline.c b/fs/proc/cmdline.c
74299index cbd82df..c0407d2 100644
74300--- a/fs/proc/cmdline.c
74301+++ b/fs/proc/cmdline.c
74302@@ -23,7 +23,11 @@ static const struct file_operations cmdline_proc_fops = {
74303
74304 static int __init proc_cmdline_init(void)
74305 {
74306+#ifdef CONFIG_GRKERNSEC_PROC_ADD
74307+ proc_create_grsec("cmdline", 0, NULL, &cmdline_proc_fops);
74308+#else
74309 proc_create("cmdline", 0, NULL, &cmdline_proc_fops);
74310+#endif
74311 return 0;
74312 }
74313 fs_initcall(proc_cmdline_init);
74314diff --git a/fs/proc/devices.c b/fs/proc/devices.c
74315index 50493ed..248166b 100644
74316--- a/fs/proc/devices.c
74317+++ b/fs/proc/devices.c
74318@@ -64,7 +64,11 @@ static const struct file_operations proc_devinfo_operations = {
74319
74320 static int __init proc_devices_init(void)
74321 {
74322+#ifdef CONFIG_GRKERNSEC_PROC_ADD
74323+ proc_create_grsec("devices", 0, NULL, &proc_devinfo_operations);
74324+#else
74325 proc_create("devices", 0, NULL, &proc_devinfo_operations);
74326+#endif
74327 return 0;
74328 }
74329 fs_initcall(proc_devices_init);
74330diff --git a/fs/proc/fd.c b/fs/proc/fd.c
74331index 8e5ad83..1f07a8c 100644
74332--- a/fs/proc/fd.c
74333+++ b/fs/proc/fd.c
74334@@ -26,7 +26,8 @@ static int seq_show(struct seq_file *m, void *v)
74335 if (!task)
74336 return -ENOENT;
74337
74338- files = get_files_struct(task);
74339+ if (!gr_acl_handle_procpidmem(task))
74340+ files = get_files_struct(task);
74341 put_task_struct(task);
74342
74343 if (files) {
74344@@ -284,11 +285,21 @@ static struct dentry *proc_lookupfd(struct inode *dir, struct dentry *dentry,
74345 */
74346 int proc_fd_permission(struct inode *inode, int mask)
74347 {
74348+ struct task_struct *task;
74349 int rv = generic_permission(inode, mask);
74350- if (rv == 0)
74351- return 0;
74352+
74353 if (task_tgid(current) == proc_pid(inode))
74354 rv = 0;
74355+
74356+ task = get_proc_task(inode);
74357+ if (task == NULL)
74358+ return rv;
74359+
74360+ if (gr_acl_handle_procpidmem(task))
74361+ rv = -EACCES;
74362+
74363+ put_task_struct(task);
74364+
74365 return rv;
74366 }
74367
74368diff --git a/fs/proc/generic.c b/fs/proc/generic.c
74369index be65b20..2998ba8 100644
74370--- a/fs/proc/generic.c
74371+++ b/fs/proc/generic.c
74372@@ -22,6 +22,7 @@
74373 #include <linux/bitops.h>
74374 #include <linux/spinlock.h>
74375 #include <linux/completion.h>
74376+#include <linux/grsecurity.h>
74377 #include <asm/uaccess.h>
74378
74379 #include "internal.h"
74380@@ -253,6 +254,15 @@ struct dentry *proc_lookup(struct inode *dir, struct dentry *dentry,
74381 return proc_lookup_de(PDE(dir), dir, dentry);
74382 }
74383
74384+struct dentry *proc_lookup_restrict(struct inode *dir, struct dentry *dentry,
74385+ unsigned int flags)
74386+{
74387+ if (gr_proc_is_restricted())
74388+ return ERR_PTR(-EACCES);
74389+
74390+ return proc_lookup_de(PDE(dir), dir, dentry);
74391+}
74392+
74393 /*
74394 * This returns non-zero if at EOF, so that the /proc
74395 * root directory can use this and check if it should
74396@@ -310,6 +320,16 @@ int proc_readdir(struct file *file, struct dir_context *ctx)
74397 return proc_readdir_de(PDE(inode), file, ctx);
74398 }
74399
74400+int proc_readdir_restrict(struct file *file, struct dir_context *ctx)
74401+{
74402+ struct inode *inode = file_inode(file);
74403+
74404+ if (gr_proc_is_restricted())
74405+ return -EACCES;
74406+
74407+ return proc_readdir_de(PDE(inode), file, ctx);
74408+}
74409+
74410 /*
74411 * These are the generic /proc directory operations. They
74412 * use the in-memory "struct proc_dir_entry" tree to parse
74413@@ -321,6 +341,12 @@ static const struct file_operations proc_dir_operations = {
74414 .iterate = proc_readdir,
74415 };
74416
74417+static const struct file_operations proc_dir_restricted_operations = {
74418+ .llseek = generic_file_llseek,
74419+ .read = generic_read_dir,
74420+ .iterate = proc_readdir_restrict,
74421+};
74422+
74423 /*
74424 * proc directories can do almost nothing..
74425 */
74426@@ -330,6 +356,12 @@ static const struct inode_operations proc_dir_inode_operations = {
74427 .setattr = proc_notify_change,
74428 };
74429
74430+static const struct inode_operations proc_dir_restricted_inode_operations = {
74431+ .lookup = proc_lookup_restrict,
74432+ .getattr = proc_getattr,
74433+ .setattr = proc_notify_change,
74434+};
74435+
74436 static int proc_register(struct proc_dir_entry * dir, struct proc_dir_entry * dp)
74437 {
74438 int ret;
74439@@ -441,6 +473,31 @@ struct proc_dir_entry *proc_mkdir_data(const char *name, umode_t mode,
74440 }
74441 EXPORT_SYMBOL_GPL(proc_mkdir_data);
74442
74443+struct proc_dir_entry *proc_mkdir_data_restrict(const char *name, umode_t mode,
74444+ struct proc_dir_entry *parent, void *data)
74445+{
74446+ struct proc_dir_entry *ent;
74447+
74448+ if (mode == 0)
74449+ mode = S_IRUGO | S_IXUGO;
74450+
74451+ ent = __proc_create(&parent, name, S_IFDIR | mode, 2);
74452+ if (ent) {
74453+ ent->data = data;
74454+ ent->restricted = 1;
74455+ ent->proc_fops = &proc_dir_restricted_operations;
74456+ ent->proc_iops = &proc_dir_restricted_inode_operations;
74457+ parent->nlink++;
74458+ if (proc_register(parent, ent) < 0) {
74459+ kfree(ent);
74460+ parent->nlink--;
74461+ ent = NULL;
74462+ }
74463+ }
74464+ return ent;
74465+}
74466+EXPORT_SYMBOL_GPL(proc_mkdir_data_restrict);
74467+
74468 struct proc_dir_entry *proc_mkdir_mode(const char *name, umode_t mode,
74469 struct proc_dir_entry *parent)
74470 {
74471@@ -455,6 +512,13 @@ struct proc_dir_entry *proc_mkdir(const char *name,
74472 }
74473 EXPORT_SYMBOL(proc_mkdir);
74474
74475+struct proc_dir_entry *proc_mkdir_restrict(const char *name,
74476+ struct proc_dir_entry *parent)
74477+{
74478+ return proc_mkdir_data_restrict(name, 0, parent, NULL);
74479+}
74480+EXPORT_SYMBOL(proc_mkdir_restrict);
74481+
74482 struct proc_dir_entry *proc_create_data(const char *name, umode_t mode,
74483 struct proc_dir_entry *parent,
74484 const struct file_operations *proc_fops,
74485diff --git a/fs/proc/inode.c b/fs/proc/inode.c
74486index 7697b66..8d8e541 100644
74487--- a/fs/proc/inode.c
74488+++ b/fs/proc/inode.c
74489@@ -24,11 +24,17 @@
74490 #include <linux/mount.h>
74491 #include <linux/magic.h>
74492 #include <linux/namei.h>
74493+#include <linux/grsecurity.h>
74494
74495 #include <asm/uaccess.h>
74496
74497 #include "internal.h"
74498
74499+#ifdef CONFIG_PROC_SYSCTL
74500+extern const struct inode_operations proc_sys_inode_operations;
74501+extern const struct inode_operations proc_sys_dir_operations;
74502+#endif
74503+
74504 static void proc_evict_inode(struct inode *inode)
74505 {
74506 struct proc_dir_entry *de;
74507@@ -49,6 +55,13 @@ static void proc_evict_inode(struct inode *inode)
74508 RCU_INIT_POINTER(PROC_I(inode)->sysctl, NULL);
74509 sysctl_head_put(head);
74510 }
74511+
74512+#ifdef CONFIG_PROC_SYSCTL
74513+ if (inode->i_op == &proc_sys_inode_operations ||
74514+ inode->i_op == &proc_sys_dir_operations)
74515+ gr_handle_delete(inode->i_ino, inode->i_sb->s_dev);
74516+#endif
74517+
74518 }
74519
74520 static struct kmem_cache * proc_inode_cachep;
74521@@ -426,7 +439,11 @@ struct inode *proc_get_inode(struct super_block *sb, struct proc_dir_entry *de)
74522 if (de->mode) {
74523 inode->i_mode = de->mode;
74524 inode->i_uid = de->uid;
74525+#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
74526+ inode->i_gid = grsec_proc_gid;
74527+#else
74528 inode->i_gid = de->gid;
74529+#endif
74530 }
74531 if (de->size)
74532 inode->i_size = de->size;
74533diff --git a/fs/proc/internal.h b/fs/proc/internal.h
74534index c835b94..c9e01a3 100644
74535--- a/fs/proc/internal.h
74536+++ b/fs/proc/internal.h
74537@@ -47,9 +47,10 @@ struct proc_dir_entry {
74538 struct completion *pde_unload_completion;
74539 struct list_head pde_openers; /* who did ->open, but not ->release */
74540 spinlock_t pde_unload_lock; /* proc_fops checks and pde_users bumps */
74541+ u8 restricted; /* a directory in /proc/net that should be restricted via GRKERNSEC_PROC */
74542 u8 namelen;
74543 char name[];
74544-};
74545+} __randomize_layout;
74546
74547 union proc_op {
74548 int (*proc_get_link)(struct dentry *, struct path *);
74549@@ -67,7 +68,7 @@ struct proc_inode {
74550 struct ctl_table *sysctl_entry;
74551 const struct proc_ns_operations *ns_ops;
74552 struct inode vfs_inode;
74553-};
74554+} __randomize_layout;
74555
74556 /*
74557 * General functions
74558@@ -155,6 +156,10 @@ extern int proc_pid_status(struct seq_file *, struct pid_namespace *,
74559 struct pid *, struct task_struct *);
74560 extern int proc_pid_statm(struct seq_file *, struct pid_namespace *,
74561 struct pid *, struct task_struct *);
74562+#ifdef CONFIG_GRKERNSEC_PROC_IPADDR
74563+extern int proc_pid_ipaddr(struct seq_file *, struct pid_namespace *,
74564+ struct pid *, struct task_struct *);
74565+#endif
74566
74567 /*
74568 * base.c
74569@@ -179,9 +184,11 @@ extern bool proc_fill_cache(struct file *, struct dir_context *, const char *, i
74570 * generic.c
74571 */
74572 extern struct dentry *proc_lookup(struct inode *, struct dentry *, unsigned int);
74573+extern struct dentry *proc_lookup_restrict(struct inode *, struct dentry *, unsigned int);
74574 extern struct dentry *proc_lookup_de(struct proc_dir_entry *, struct inode *,
74575 struct dentry *);
74576 extern int proc_readdir(struct file *, struct dir_context *);
74577+extern int proc_readdir_restrict(struct file *, struct dir_context *);
74578 extern int proc_readdir_de(struct proc_dir_entry *, struct file *, struct dir_context *);
74579
74580 static inline struct proc_dir_entry *pde_get(struct proc_dir_entry *pde)
74581diff --git a/fs/proc/interrupts.c b/fs/proc/interrupts.c
74582index a352d57..cb94a5c 100644
74583--- a/fs/proc/interrupts.c
74584+++ b/fs/proc/interrupts.c
74585@@ -47,7 +47,11 @@ static const struct file_operations proc_interrupts_operations = {
74586
74587 static int __init proc_interrupts_init(void)
74588 {
74589+#ifdef CONFIG_GRKERNSEC_PROC_ADD
74590+ proc_create_grsec("interrupts", 0, NULL, &proc_interrupts_operations);
74591+#else
74592 proc_create("interrupts", 0, NULL, &proc_interrupts_operations);
74593+#endif
74594 return 0;
74595 }
74596 fs_initcall(proc_interrupts_init);
74597diff --git a/fs/proc/kcore.c b/fs/proc/kcore.c
74598index 91a4e64..14bf8fa 100644
74599--- a/fs/proc/kcore.c
74600+++ b/fs/proc/kcore.c
74601@@ -483,9 +483,10 @@ read_kcore(struct file *file, char __user *buffer, size_t buflen, loff_t *fpos)
74602 * the addresses in the elf_phdr on our list.
74603 */
74604 start = kc_offset_to_vaddr(*fpos - elf_buflen);
74605- if ((tsz = (PAGE_SIZE - (start & ~PAGE_MASK))) > buflen)
74606+ tsz = PAGE_SIZE - (start & ~PAGE_MASK);
74607+ if (tsz > buflen)
74608 tsz = buflen;
74609-
74610+
74611 while (buflen) {
74612 struct kcore_list *m;
74613
74614@@ -515,19 +516,20 @@ read_kcore(struct file *file, char __user *buffer, size_t buflen, loff_t *fpos)
74615 } else {
74616 if (kern_addr_valid(start)) {
74617 unsigned long n;
74618+ char *elf_buf;
74619+ mm_segment_t oldfs;
74620
74621- n = copy_to_user(buffer, (char *)start, tsz);
74622- /*
74623- * We cannot distinguish between fault on source
74624- * and fault on destination. When this happens
74625- * we clear too and hope it will trigger the
74626- * EFAULT again.
74627- */
74628- if (n) {
74629- if (clear_user(buffer + tsz - n,
74630- n))
74631- return -EFAULT;
74632- }
74633+ elf_buf = kzalloc(tsz, GFP_KERNEL);
74634+ if (!elf_buf)
74635+ return -ENOMEM;
74636+ oldfs = get_fs();
74637+ set_fs(KERNEL_DS);
74638+ n = __copy_from_user(elf_buf, (const void __user *)start, tsz);
74639+ set_fs(oldfs);
74640+ n = copy_to_user(buffer, elf_buf, tsz);
74641+ kfree(elf_buf);
74642+ if (n)
74643+ return -EFAULT;
74644 } else {
74645 if (clear_user(buffer, tsz))
74646 return -EFAULT;
74647@@ -547,6 +549,9 @@ read_kcore(struct file *file, char __user *buffer, size_t buflen, loff_t *fpos)
74648
74649 static int open_kcore(struct inode *inode, struct file *filp)
74650 {
74651+#if defined(CONFIG_GRKERNSEC_PROC_ADD) || defined(CONFIG_GRKERNSEC_HIDESYM)
74652+ return -EPERM;
74653+#endif
74654 if (!capable(CAP_SYS_RAWIO))
74655 return -EPERM;
74656 if (kcore_need_update)
74657@@ -580,7 +585,7 @@ static int __meminit kcore_callback(struct notifier_block *self,
74658 return NOTIFY_OK;
74659 }
74660
74661-static struct notifier_block kcore_callback_nb __meminitdata = {
74662+static struct notifier_block kcore_callback_nb __meminitconst = {
74663 .notifier_call = kcore_callback,
74664 .priority = 0,
74665 };
74666diff --git a/fs/proc/meminfo.c b/fs/proc/meminfo.c
74667index d3ebf2e..6ad42d1 100644
74668--- a/fs/proc/meminfo.c
74669+++ b/fs/proc/meminfo.c
74670@@ -194,7 +194,7 @@ static int meminfo_proc_show(struct seq_file *m, void *v)
74671 vmi.used >> 10,
74672 vmi.largest_chunk >> 10
74673 #ifdef CONFIG_MEMORY_FAILURE
74674- , atomic_long_read(&num_poisoned_pages) << (PAGE_SHIFT - 10)
74675+ , atomic_long_read_unchecked(&num_poisoned_pages) << (PAGE_SHIFT - 10)
74676 #endif
74677 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
74678 , K(global_page_state(NR_ANON_TRANSPARENT_HUGEPAGES) *
74679diff --git a/fs/proc/nommu.c b/fs/proc/nommu.c
74680index d4a3574..b421ce9 100644
74681--- a/fs/proc/nommu.c
74682+++ b/fs/proc/nommu.c
74683@@ -64,7 +64,7 @@ static int nommu_region_show(struct seq_file *m, struct vm_region *region)
74684
74685 if (file) {
74686 seq_pad(m, ' ');
74687- seq_path(m, &file->f_path, "");
74688+ seq_path(m, &file->f_path, "\n\\");
74689 }
74690
74691 seq_putc(m, '\n');
74692diff --git a/fs/proc/proc_net.c b/fs/proc/proc_net.c
74693index 1bde894..22ac7eb 100644
74694--- a/fs/proc/proc_net.c
74695+++ b/fs/proc/proc_net.c
74696@@ -23,9 +23,27 @@
74697 #include <linux/nsproxy.h>
74698 #include <net/net_namespace.h>
74699 #include <linux/seq_file.h>
74700+#include <linux/grsecurity.h>
74701
74702 #include "internal.h"
74703
74704+#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
74705+static struct seq_operations *ipv6_seq_ops_addr;
74706+
74707+void register_ipv6_seq_ops_addr(struct seq_operations *addr)
74708+{
74709+ ipv6_seq_ops_addr = addr;
74710+}
74711+
74712+void unregister_ipv6_seq_ops_addr(void)
74713+{
74714+ ipv6_seq_ops_addr = NULL;
74715+}
74716+
74717+EXPORT_SYMBOL_GPL(register_ipv6_seq_ops_addr);
74718+EXPORT_SYMBOL_GPL(unregister_ipv6_seq_ops_addr);
74719+#endif
74720+
74721 static inline struct net *PDE_NET(struct proc_dir_entry *pde)
74722 {
74723 return pde->parent->data;
74724@@ -36,6 +54,8 @@ static struct net *get_proc_net(const struct inode *inode)
74725 return maybe_get_net(PDE_NET(PDE(inode)));
74726 }
74727
74728+extern const struct seq_operations dev_seq_ops;
74729+
74730 int seq_open_net(struct inode *ino, struct file *f,
74731 const struct seq_operations *ops, int size)
74732 {
74733@@ -44,6 +64,14 @@ int seq_open_net(struct inode *ino, struct file *f,
74734
74735 BUG_ON(size < sizeof(*p));
74736
74737+ /* only permit access to /proc/net/dev */
74738+ if (
74739+#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
74740+ ops != ipv6_seq_ops_addr &&
74741+#endif
74742+ ops != &dev_seq_ops && gr_proc_is_restricted())
74743+ return -EACCES;
74744+
74745 net = get_proc_net(ino);
74746 if (net == NULL)
74747 return -ENXIO;
74748@@ -66,6 +94,9 @@ int single_open_net(struct inode *inode, struct file *file,
74749 int err;
74750 struct net *net;
74751
74752+ if (gr_proc_is_restricted())
74753+ return -EACCES;
74754+
74755 err = -ENXIO;
74756 net = get_proc_net(inode);
74757 if (net == NULL)
74758diff --git a/fs/proc/proc_sysctl.c b/fs/proc/proc_sysctl.c
74759index f92d5dd..26398ac 100644
74760--- a/fs/proc/proc_sysctl.c
74761+++ b/fs/proc/proc_sysctl.c
74762@@ -11,13 +11,21 @@
74763 #include <linux/namei.h>
74764 #include <linux/mm.h>
74765 #include <linux/module.h>
74766+#include <linux/nsproxy.h>
74767+#ifdef CONFIG_GRKERNSEC
74768+#include <net/net_namespace.h>
74769+#endif
74770 #include "internal.h"
74771
74772+extern int gr_handle_chroot_sysctl(const int op);
74773+extern int gr_handle_sysctl_mod(const char *dirname, const char *name,
74774+ const int op);
74775+
74776 static const struct dentry_operations proc_sys_dentry_operations;
74777 static const struct file_operations proc_sys_file_operations;
74778-static const struct inode_operations proc_sys_inode_operations;
74779+const struct inode_operations proc_sys_inode_operations;
74780 static const struct file_operations proc_sys_dir_file_operations;
74781-static const struct inode_operations proc_sys_dir_operations;
74782+const struct inode_operations proc_sys_dir_operations;
74783
74784 void proc_sys_poll_notify(struct ctl_table_poll *poll)
74785 {
74786@@ -467,6 +475,9 @@ static struct dentry *proc_sys_lookup(struct inode *dir, struct dentry *dentry,
74787
74788 err = NULL;
74789 d_set_d_op(dentry, &proc_sys_dentry_operations);
74790+
74791+ gr_handle_proc_create(dentry, inode);
74792+
74793 d_add(dentry, inode);
74794
74795 out:
74796@@ -482,6 +493,7 @@ static ssize_t proc_sys_call_handler(struct file *filp, void __user *buf,
74797 struct inode *inode = file_inode(filp);
74798 struct ctl_table_header *head = grab_header(inode);
74799 struct ctl_table *table = PROC_I(inode)->sysctl_entry;
74800+ int op = write ? MAY_WRITE : MAY_READ;
74801 ssize_t error;
74802 size_t res;
74803
74804@@ -493,7 +505,7 @@ static ssize_t proc_sys_call_handler(struct file *filp, void __user *buf,
74805 * and won't be until we finish.
74806 */
74807 error = -EPERM;
74808- if (sysctl_perm(head, table, write ? MAY_WRITE : MAY_READ))
74809+ if (sysctl_perm(head, table, op))
74810 goto out;
74811
74812 /* if that can happen at all, it should be -EINVAL, not -EISDIR */
74813@@ -501,6 +513,27 @@ static ssize_t proc_sys_call_handler(struct file *filp, void __user *buf,
74814 if (!table->proc_handler)
74815 goto out;
74816
74817+#ifdef CONFIG_GRKERNSEC
74818+ error = -EPERM;
74819+ if (gr_handle_chroot_sysctl(op))
74820+ goto out;
74821+ dget(filp->f_path.dentry);
74822+ if (gr_handle_sysctl_mod(filp->f_path.dentry->d_parent->d_name.name, table->procname, op)) {
74823+ dput(filp->f_path.dentry);
74824+ goto out;
74825+ }
74826+ dput(filp->f_path.dentry);
74827+ if (!gr_acl_handle_open(filp->f_path.dentry, filp->f_path.mnt, op))
74828+ goto out;
74829+ if (write) {
74830+ if (current->nsproxy->net_ns != table->extra2) {
74831+ if (!capable(CAP_SYS_ADMIN))
74832+ goto out;
74833+ } else if (!ns_capable(current->nsproxy->net_ns->user_ns, CAP_NET_ADMIN))
74834+ goto out;
74835+ }
74836+#endif
74837+
74838 /* careful: calling conventions are nasty here */
74839 res = count;
74840 error = table->proc_handler(table, write, buf, &res, ppos);
74841@@ -598,6 +631,9 @@ static bool proc_sys_fill_cache(struct file *file,
74842 return false;
74843 } else {
74844 d_set_d_op(child, &proc_sys_dentry_operations);
74845+
74846+ gr_handle_proc_create(child, inode);
74847+
74848 d_add(child, inode);
74849 }
74850 } else {
74851@@ -641,6 +677,9 @@ static int scan(struct ctl_table_header *head, struct ctl_table *table,
74852 if ((*pos)++ < ctx->pos)
74853 return true;
74854
74855+ if (!gr_acl_handle_hidden_file(file->f_path.dentry, file->f_path.mnt))
74856+ return 0;
74857+
74858 if (unlikely(S_ISLNK(table->mode)))
74859 res = proc_sys_link_fill_cache(file, ctx, head, table);
74860 else
74861@@ -734,6 +773,9 @@ static int proc_sys_getattr(struct vfsmount *mnt, struct dentry *dentry, struct
74862 if (IS_ERR(head))
74863 return PTR_ERR(head);
74864
74865+ if (table && !gr_acl_handle_hidden_file(dentry, mnt))
74866+ return -ENOENT;
74867+
74868 generic_fillattr(inode, stat);
74869 if (table)
74870 stat->mode = (stat->mode & S_IFMT) | table->mode;
74871@@ -756,13 +798,13 @@ static const struct file_operations proc_sys_dir_file_operations = {
74872 .llseek = generic_file_llseek,
74873 };
74874
74875-static const struct inode_operations proc_sys_inode_operations = {
74876+const struct inode_operations proc_sys_inode_operations = {
74877 .permission = proc_sys_permission,
74878 .setattr = proc_sys_setattr,
74879 .getattr = proc_sys_getattr,
74880 };
74881
74882-static const struct inode_operations proc_sys_dir_operations = {
74883+const struct inode_operations proc_sys_dir_operations = {
74884 .lookup = proc_sys_lookup,
74885 .permission = proc_sys_permission,
74886 .setattr = proc_sys_setattr,
74887@@ -839,7 +881,7 @@ static struct ctl_dir *find_subdir(struct ctl_dir *dir,
74888 static struct ctl_dir *new_dir(struct ctl_table_set *set,
74889 const char *name, int namelen)
74890 {
74891- struct ctl_table *table;
74892+ ctl_table_no_const *table;
74893 struct ctl_dir *new;
74894 struct ctl_node *node;
74895 char *new_name;
74896@@ -851,7 +893,7 @@ static struct ctl_dir *new_dir(struct ctl_table_set *set,
74897 return NULL;
74898
74899 node = (struct ctl_node *)(new + 1);
74900- table = (struct ctl_table *)(node + 1);
74901+ table = (ctl_table_no_const *)(node + 1);
74902 new_name = (char *)(table + 2);
74903 memcpy(new_name, name, namelen);
74904 new_name[namelen] = '\0';
74905@@ -1020,7 +1062,8 @@ static int sysctl_check_table(const char *path, struct ctl_table *table)
74906 static struct ctl_table_header *new_links(struct ctl_dir *dir, struct ctl_table *table,
74907 struct ctl_table_root *link_root)
74908 {
74909- struct ctl_table *link_table, *entry, *link;
74910+ ctl_table_no_const *link_table, *link;
74911+ struct ctl_table *entry;
74912 struct ctl_table_header *links;
74913 struct ctl_node *node;
74914 char *link_name;
74915@@ -1043,7 +1086,7 @@ static struct ctl_table_header *new_links(struct ctl_dir *dir, struct ctl_table
74916 return NULL;
74917
74918 node = (struct ctl_node *)(links + 1);
74919- link_table = (struct ctl_table *)(node + nr_entries);
74920+ link_table = (ctl_table_no_const *)(node + nr_entries);
74921 link_name = (char *)&link_table[nr_entries + 1];
74922
74923 for (link = link_table, entry = table; entry->procname; link++, entry++) {
74924@@ -1291,8 +1334,8 @@ static int register_leaf_sysctl_tables(const char *path, char *pos,
74925 struct ctl_table_header ***subheader, struct ctl_table_set *set,
74926 struct ctl_table *table)
74927 {
74928- struct ctl_table *ctl_table_arg = NULL;
74929- struct ctl_table *entry, *files;
74930+ ctl_table_no_const *ctl_table_arg = NULL, *files = NULL;
74931+ struct ctl_table *entry;
74932 int nr_files = 0;
74933 int nr_dirs = 0;
74934 int err = -ENOMEM;
74935@@ -1304,10 +1347,9 @@ static int register_leaf_sysctl_tables(const char *path, char *pos,
74936 nr_files++;
74937 }
74938
74939- files = table;
74940 /* If there are mixed files and directories we need a new table */
74941 if (nr_dirs && nr_files) {
74942- struct ctl_table *new;
74943+ ctl_table_no_const *new;
74944 files = kzalloc(sizeof(struct ctl_table) * (nr_files + 1),
74945 GFP_KERNEL);
74946 if (!files)
74947@@ -1325,7 +1367,7 @@ static int register_leaf_sysctl_tables(const char *path, char *pos,
74948 /* Register everything except a directory full of subdirectories */
74949 if (nr_files || !nr_dirs) {
74950 struct ctl_table_header *header;
74951- header = __register_sysctl_table(set, path, files);
74952+ header = __register_sysctl_table(set, path, files ? files : table);
74953 if (!header) {
74954 kfree(ctl_table_arg);
74955 goto out;
74956diff --git a/fs/proc/root.c b/fs/proc/root.c
74957index e74ac9f..35e89f4 100644
74958--- a/fs/proc/root.c
74959+++ b/fs/proc/root.c
74960@@ -188,7 +188,15 @@ void __init proc_root_init(void)
74961 proc_mkdir("openprom", NULL);
74962 #endif
74963 proc_tty_init();
74964+#ifdef CONFIG_GRKERNSEC_PROC_ADD
74965+#ifdef CONFIG_GRKERNSEC_PROC_USER
74966+ proc_mkdir_mode("bus", S_IRUSR | S_IXUSR, NULL);
74967+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
74968+ proc_mkdir_mode("bus", S_IRUSR | S_IXUSR | S_IRGRP | S_IXGRP, NULL);
74969+#endif
74970+#else
74971 proc_mkdir("bus", NULL);
74972+#endif
74973 proc_sys_init();
74974 }
74975
74976diff --git a/fs/proc/stat.c b/fs/proc/stat.c
74977index 510413eb..34d9a8c 100644
74978--- a/fs/proc/stat.c
74979+++ b/fs/proc/stat.c
74980@@ -11,6 +11,7 @@
74981 #include <linux/irqnr.h>
74982 #include <linux/cputime.h>
74983 #include <linux/tick.h>
74984+#include <linux/grsecurity.h>
74985
74986 #ifndef arch_irq_stat_cpu
74987 #define arch_irq_stat_cpu(cpu) 0
74988@@ -87,6 +88,18 @@ static int show_stat(struct seq_file *p, void *v)
74989 u64 sum_softirq = 0;
74990 unsigned int per_softirq_sums[NR_SOFTIRQS] = {0};
74991 struct timespec boottime;
74992+ int unrestricted = 1;
74993+
74994+#ifdef CONFIG_GRKERNSEC_PROC_ADD
74995+#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
74996+ if (!uid_eq(current_uid(), GLOBAL_ROOT_UID)
74997+#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
74998+ && !in_group_p(grsec_proc_gid)
74999+#endif
75000+ )
75001+ unrestricted = 0;
75002+#endif
75003+#endif
75004
75005 user = nice = system = idle = iowait =
75006 irq = softirq = steal = 0;
75007@@ -99,23 +112,25 @@ static int show_stat(struct seq_file *p, void *v)
75008 nice += kcpustat_cpu(i).cpustat[CPUTIME_NICE];
75009 system += kcpustat_cpu(i).cpustat[CPUTIME_SYSTEM];
75010 idle += get_idle_time(i);
75011- iowait += get_iowait_time(i);
75012- irq += kcpustat_cpu(i).cpustat[CPUTIME_IRQ];
75013- softirq += kcpustat_cpu(i).cpustat[CPUTIME_SOFTIRQ];
75014- steal += kcpustat_cpu(i).cpustat[CPUTIME_STEAL];
75015- guest += kcpustat_cpu(i).cpustat[CPUTIME_GUEST];
75016- guest_nice += kcpustat_cpu(i).cpustat[CPUTIME_GUEST_NICE];
75017- sum += kstat_cpu_irqs_sum(i);
75018- sum += arch_irq_stat_cpu(i);
75019+ if (unrestricted) {
75020+ iowait += get_iowait_time(i);
75021+ irq += kcpustat_cpu(i).cpustat[CPUTIME_IRQ];
75022+ softirq += kcpustat_cpu(i).cpustat[CPUTIME_SOFTIRQ];
75023+ steal += kcpustat_cpu(i).cpustat[CPUTIME_STEAL];
75024+ guest += kcpustat_cpu(i).cpustat[CPUTIME_GUEST];
75025+ guest_nice += kcpustat_cpu(i).cpustat[CPUTIME_GUEST_NICE];
75026+ sum += kstat_cpu_irqs_sum(i);
75027+ sum += arch_irq_stat_cpu(i);
75028+ for (j = 0; j < NR_SOFTIRQS; j++) {
75029+ unsigned int softirq_stat = kstat_softirqs_cpu(j, i);
75030
75031- for (j = 0; j < NR_SOFTIRQS; j++) {
75032- unsigned int softirq_stat = kstat_softirqs_cpu(j, i);
75033-
75034- per_softirq_sums[j] += softirq_stat;
75035- sum_softirq += softirq_stat;
75036+ per_softirq_sums[j] += softirq_stat;
75037+ sum_softirq += softirq_stat;
75038+ }
75039 }
75040 }
75041- sum += arch_irq_stat();
75042+ if (unrestricted)
75043+ sum += arch_irq_stat();
75044
75045 seq_puts(p, "cpu ");
75046 seq_put_decimal_ull(p, ' ', cputime64_to_clock_t(user));
75047@@ -136,12 +151,14 @@ static int show_stat(struct seq_file *p, void *v)
75048 nice = kcpustat_cpu(i).cpustat[CPUTIME_NICE];
75049 system = kcpustat_cpu(i).cpustat[CPUTIME_SYSTEM];
75050 idle = get_idle_time(i);
75051- iowait = get_iowait_time(i);
75052- irq = kcpustat_cpu(i).cpustat[CPUTIME_IRQ];
75053- softirq = kcpustat_cpu(i).cpustat[CPUTIME_SOFTIRQ];
75054- steal = kcpustat_cpu(i).cpustat[CPUTIME_STEAL];
75055- guest = kcpustat_cpu(i).cpustat[CPUTIME_GUEST];
75056- guest_nice = kcpustat_cpu(i).cpustat[CPUTIME_GUEST_NICE];
75057+ if (unrestricted) {
75058+ iowait = get_iowait_time(i);
75059+ irq = kcpustat_cpu(i).cpustat[CPUTIME_IRQ];
75060+ softirq = kcpustat_cpu(i).cpustat[CPUTIME_SOFTIRQ];
75061+ steal = kcpustat_cpu(i).cpustat[CPUTIME_STEAL];
75062+ guest = kcpustat_cpu(i).cpustat[CPUTIME_GUEST];
75063+ guest_nice = kcpustat_cpu(i).cpustat[CPUTIME_GUEST_NICE];
75064+ }
75065 seq_printf(p, "cpu%d", i);
75066 seq_put_decimal_ull(p, ' ', cputime64_to_clock_t(user));
75067 seq_put_decimal_ull(p, ' ', cputime64_to_clock_t(nice));
75068@@ -159,7 +176,7 @@ static int show_stat(struct seq_file *p, void *v)
75069
75070 /* sum again ? it could be updated? */
75071 for_each_irq_nr(j)
75072- seq_put_decimal_ull(p, ' ', kstat_irqs_usr(j));
75073+ seq_put_decimal_ull(p, ' ', unrestricted ? kstat_irqs_usr(j) : 0ULL);
75074
75075 seq_printf(p,
75076 "\nctxt %llu\n"
75077@@ -167,11 +184,11 @@ static int show_stat(struct seq_file *p, void *v)
75078 "processes %lu\n"
75079 "procs_running %lu\n"
75080 "procs_blocked %lu\n",
75081- nr_context_switches(),
75082+ unrestricted ? nr_context_switches() : 0ULL,
75083 (unsigned long)jif,
75084- total_forks,
75085- nr_running(),
75086- nr_iowait());
75087+ unrestricted ? total_forks : 0UL,
75088+ unrestricted ? nr_running() : 0UL,
75089+ unrestricted ? nr_iowait() : 0UL);
75090
75091 seq_printf(p, "softirq %llu", (unsigned long long)sum_softirq);
75092
75093diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
75094index 6dee68d..1b4add0 100644
75095--- a/fs/proc/task_mmu.c
75096+++ b/fs/proc/task_mmu.c
75097@@ -13,12 +13,19 @@
75098 #include <linux/swap.h>
75099 #include <linux/swapops.h>
75100 #include <linux/mmu_notifier.h>
75101+#include <linux/grsecurity.h>
75102
75103 #include <asm/elf.h>
75104 #include <asm/uaccess.h>
75105 #include <asm/tlbflush.h>
75106 #include "internal.h"
75107
75108+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
75109+#define PAX_RAND_FLAGS(_mm) (_mm != NULL && _mm != current->mm && \
75110+ (_mm->pax_flags & MF_PAX_RANDMMAP || \
75111+ _mm->pax_flags & MF_PAX_SEGMEXEC))
75112+#endif
75113+
75114 void task_mem(struct seq_file *m, struct mm_struct *mm)
75115 {
75116 unsigned long data, text, lib, swap, ptes, pmds;
75117@@ -57,8 +64,13 @@ void task_mem(struct seq_file *m, struct mm_struct *mm)
75118 "VmLib:\t%8lu kB\n"
75119 "VmPTE:\t%8lu kB\n"
75120 "VmPMD:\t%8lu kB\n"
75121- "VmSwap:\t%8lu kB\n",
75122- hiwater_vm << (PAGE_SHIFT-10),
75123+ "VmSwap:\t%8lu kB\n"
75124+
75125+#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT
75126+ "CsBase:\t%8lx\nCsLim:\t%8lx\n"
75127+#endif
75128+
75129+ ,hiwater_vm << (PAGE_SHIFT-10),
75130 total_vm << (PAGE_SHIFT-10),
75131 mm->locked_vm << (PAGE_SHIFT-10),
75132 mm->pinned_vm << (PAGE_SHIFT-10),
75133@@ -68,7 +80,19 @@ void task_mem(struct seq_file *m, struct mm_struct *mm)
75134 mm->stack_vm << (PAGE_SHIFT-10), text, lib,
75135 ptes >> 10,
75136 pmds >> 10,
75137- swap << (PAGE_SHIFT-10));
75138+ swap << (PAGE_SHIFT-10)
75139+
75140+#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT
75141+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
75142+ , PAX_RAND_FLAGS(mm) ? 0 : mm->context.user_cs_base
75143+ , PAX_RAND_FLAGS(mm) ? 0 : mm->context.user_cs_limit
75144+#else
75145+ , mm->context.user_cs_base
75146+ , mm->context.user_cs_limit
75147+#endif
75148+#endif
75149+
75150+ );
75151 }
75152
75153 unsigned long task_vsize(struct mm_struct *mm)
75154@@ -285,13 +309,13 @@ show_map_vma(struct seq_file *m, struct vm_area_struct *vma, int is_pid)
75155 pgoff = ((loff_t)vma->vm_pgoff) << PAGE_SHIFT;
75156 }
75157
75158- /* We don't show the stack guard page in /proc/maps */
75159+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
75160+ start = PAX_RAND_FLAGS(mm) ? 0UL : vma->vm_start;
75161+ end = PAX_RAND_FLAGS(mm) ? 0UL : vma->vm_end;
75162+#else
75163 start = vma->vm_start;
75164- if (stack_guard_page_start(vma, start))
75165- start += PAGE_SIZE;
75166 end = vma->vm_end;
75167- if (stack_guard_page_end(vma, end))
75168- end -= PAGE_SIZE;
75169+#endif
75170
75171 seq_setwidth(m, 25 + sizeof(void *) * 6 - 1);
75172 seq_printf(m, "%08lx-%08lx %c%c%c%c %08llx %02x:%02x %lu ",
75173@@ -301,7 +325,11 @@ show_map_vma(struct seq_file *m, struct vm_area_struct *vma, int is_pid)
75174 flags & VM_WRITE ? 'w' : '-',
75175 flags & VM_EXEC ? 'x' : '-',
75176 flags & VM_MAYSHARE ? 's' : 'p',
75177+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
75178+ PAX_RAND_FLAGS(mm) ? 0UL : pgoff,
75179+#else
75180 pgoff,
75181+#endif
75182 MAJOR(dev), MINOR(dev), ino);
75183
75184 /*
75185@@ -310,7 +338,7 @@ show_map_vma(struct seq_file *m, struct vm_area_struct *vma, int is_pid)
75186 */
75187 if (file) {
75188 seq_pad(m, ' ');
75189- seq_path(m, &file->f_path, "\n");
75190+ seq_path(m, &file->f_path, "\n\\");
75191 goto done;
75192 }
75193
75194@@ -341,8 +369,9 @@ show_map_vma(struct seq_file *m, struct vm_area_struct *vma, int is_pid)
75195 * Thread stack in /proc/PID/task/TID/maps or
75196 * the main process stack.
75197 */
75198- if (!is_pid || (vma->vm_start <= mm->start_stack &&
75199- vma->vm_end >= mm->start_stack)) {
75200+ if (!is_pid || (vma->vm_flags & (VM_GROWSDOWN | VM_GROWSUP)) ||
75201+ (vma->vm_start <= mm->start_stack &&
75202+ vma->vm_end >= mm->start_stack)) {
75203 name = "[stack]";
75204 } else {
75205 /* Thread stack in /proc/PID/maps */
75206@@ -362,6 +391,12 @@ done:
75207
75208 static int show_map(struct seq_file *m, void *v, int is_pid)
75209 {
75210+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
75211+ if (current->exec_id != m->exec_id) {
75212+ gr_log_badprocpid("maps");
75213+ return 0;
75214+ }
75215+#endif
75216 show_map_vma(m, v, is_pid);
75217 m_cache_vma(m, v);
75218 return 0;
75219@@ -620,9 +655,18 @@ static int show_smap(struct seq_file *m, void *v, int is_pid)
75220 .private = &mss,
75221 };
75222
75223+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
75224+ if (current->exec_id != m->exec_id) {
75225+ gr_log_badprocpid("smaps");
75226+ return 0;
75227+ }
75228+#endif
75229 memset(&mss, 0, sizeof mss);
75230- /* mmap_sem is held in m_start */
75231- walk_page_vma(vma, &smaps_walk);
75232+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
75233+ if (!PAX_RAND_FLAGS(vma->vm_mm))
75234+#endif
75235+ /* mmap_sem is held in m_start */
75236+ walk_page_vma(vma, &smaps_walk);
75237
75238 show_map_vma(m, vma, is_pid);
75239
75240@@ -641,7 +685,11 @@ static int show_smap(struct seq_file *m, void *v, int is_pid)
75241 "KernelPageSize: %8lu kB\n"
75242 "MMUPageSize: %8lu kB\n"
75243 "Locked: %8lu kB\n",
75244+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
75245+ PAX_RAND_FLAGS(vma->vm_mm) ? 0UL : (vma->vm_end - vma->vm_start) >> 10,
75246+#else
75247 (vma->vm_end - vma->vm_start) >> 10,
75248+#endif
75249 mss.resident >> 10,
75250 (unsigned long)(mss.pss >> (10 + PSS_SHIFT)),
75251 mss.shared_clean >> 10,
75252@@ -1491,6 +1539,13 @@ static int show_numa_map(struct seq_file *m, void *v, int is_pid)
75253 char buffer[64];
75254 int nid;
75255
75256+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
75257+ if (current->exec_id != m->exec_id) {
75258+ gr_log_badprocpid("numa_maps");
75259+ return 0;
75260+ }
75261+#endif
75262+
75263 if (!mm)
75264 return 0;
75265
75266@@ -1505,11 +1560,15 @@ static int show_numa_map(struct seq_file *m, void *v, int is_pid)
75267 mpol_to_str(buffer, sizeof(buffer), proc_priv->task_mempolicy);
75268 }
75269
75270+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
75271+ seq_printf(m, "%08lx %s", PAX_RAND_FLAGS(vma->vm_mm) ? 0UL : vma->vm_start, buffer);
75272+#else
75273 seq_printf(m, "%08lx %s", vma->vm_start, buffer);
75274+#endif
75275
75276 if (file) {
75277 seq_puts(m, " file=");
75278- seq_path(m, &file->f_path, "\n\t= ");
75279+ seq_path(m, &file->f_path, "\n\t\\= ");
75280 } else if (vma->vm_start <= mm->brk && vma->vm_end >= mm->start_brk) {
75281 seq_puts(m, " heap");
75282 } else {
75283diff --git a/fs/proc/task_nommu.c b/fs/proc/task_nommu.c
75284index 599ec2e..f1413ae 100644
75285--- a/fs/proc/task_nommu.c
75286+++ b/fs/proc/task_nommu.c
75287@@ -51,7 +51,7 @@ void task_mem(struct seq_file *m, struct mm_struct *mm)
75288 else
75289 bytes += kobjsize(mm);
75290
75291- if (current->fs && current->fs->users > 1)
75292+ if (current->fs && atomic_read(&current->fs->users) > 1)
75293 sbytes += kobjsize(current->fs);
75294 else
75295 bytes += kobjsize(current->fs);
75296@@ -180,7 +180,7 @@ static int nommu_vma_show(struct seq_file *m, struct vm_area_struct *vma,
75297
75298 if (file) {
75299 seq_pad(m, ' ');
75300- seq_path(m, &file->f_path, "");
75301+ seq_path(m, &file->f_path, "\n\\");
75302 } else if (mm) {
75303 pid_t tid = pid_of_stack(priv, vma, is_pid);
75304
75305diff --git a/fs/proc/vmcore.c b/fs/proc/vmcore.c
75306index 4e61388..1a2523d 100644
75307--- a/fs/proc/vmcore.c
75308+++ b/fs/proc/vmcore.c
75309@@ -105,9 +105,13 @@ static ssize_t read_from_oldmem(char *buf, size_t count,
75310 nr_bytes = count;
75311
75312 /* If pfn is not ram, return zeros for sparse dump files */
75313- if (pfn_is_ram(pfn) == 0)
75314- memset(buf, 0, nr_bytes);
75315- else {
75316+ if (pfn_is_ram(pfn) == 0) {
75317+ if (userbuf) {
75318+ if (clear_user((char __force_user *)buf, nr_bytes))
75319+ return -EFAULT;
75320+ } else
75321+ memset(buf, 0, nr_bytes);
75322+ } else {
75323 tmp = copy_oldmem_page(pfn, buf, nr_bytes,
75324 offset, userbuf);
75325 if (tmp < 0)
75326@@ -170,7 +174,7 @@ int __weak remap_oldmem_pfn_range(struct vm_area_struct *vma,
75327 static int copy_to(void *target, void *src, size_t size, int userbuf)
75328 {
75329 if (userbuf) {
75330- if (copy_to_user((char __user *) target, src, size))
75331+ if (copy_to_user((char __force_user *) target, src, size))
75332 return -EFAULT;
75333 } else {
75334 memcpy(target, src, size);
75335@@ -233,7 +237,7 @@ static ssize_t __read_vmcore(char *buffer, size_t buflen, loff_t *fpos,
75336 if (*fpos < m->offset + m->size) {
75337 tsz = min_t(size_t, m->offset + m->size - *fpos, buflen);
75338 start = m->paddr + *fpos - m->offset;
75339- tmp = read_from_oldmem(buffer, tsz, &start, userbuf);
75340+ tmp = read_from_oldmem((char __force_kernel *)buffer, tsz, &start, userbuf);
75341 if (tmp < 0)
75342 return tmp;
75343 buflen -= tsz;
75344@@ -253,7 +257,7 @@ static ssize_t __read_vmcore(char *buffer, size_t buflen, loff_t *fpos,
75345 static ssize_t read_vmcore(struct file *file, char __user *buffer,
75346 size_t buflen, loff_t *fpos)
75347 {
75348- return __read_vmcore((__force char *) buffer, buflen, fpos, 1);
75349+ return __read_vmcore((__force_kernel char *) buffer, buflen, fpos, 1);
75350 }
75351
75352 /*
75353diff --git a/fs/qnx6/qnx6.h b/fs/qnx6/qnx6.h
75354index d3fb2b6..43a8140 100644
75355--- a/fs/qnx6/qnx6.h
75356+++ b/fs/qnx6/qnx6.h
75357@@ -74,7 +74,7 @@ enum {
75358 BYTESEX_BE,
75359 };
75360
75361-static inline __u64 fs64_to_cpu(struct qnx6_sb_info *sbi, __fs64 n)
75362+static inline __u64 __intentional_overflow(-1) fs64_to_cpu(struct qnx6_sb_info *sbi, __fs64 n)
75363 {
75364 if (sbi->s_bytesex == BYTESEX_LE)
75365 return le64_to_cpu((__force __le64)n);
75366@@ -90,7 +90,7 @@ static inline __fs64 cpu_to_fs64(struct qnx6_sb_info *sbi, __u64 n)
75367 return (__force __fs64)cpu_to_be64(n);
75368 }
75369
75370-static inline __u32 fs32_to_cpu(struct qnx6_sb_info *sbi, __fs32 n)
75371+static inline __u32 __intentional_overflow(-1) fs32_to_cpu(struct qnx6_sb_info *sbi, __fs32 n)
75372 {
75373 if (sbi->s_bytesex == BYTESEX_LE)
75374 return le32_to_cpu((__force __le32)n);
75375diff --git a/fs/quota/netlink.c b/fs/quota/netlink.c
75376index bb2869f..d34ada8 100644
75377--- a/fs/quota/netlink.c
75378+++ b/fs/quota/netlink.c
75379@@ -44,7 +44,7 @@ static struct genl_family quota_genl_family = {
75380 void quota_send_warning(struct kqid qid, dev_t dev,
75381 const char warntype)
75382 {
75383- static atomic_t seq;
75384+ static atomic_unchecked_t seq;
75385 struct sk_buff *skb;
75386 void *msg_head;
75387 int ret;
75388@@ -60,7 +60,7 @@ void quota_send_warning(struct kqid qid, dev_t dev,
75389 "VFS: Not enough memory to send quota warning.\n");
75390 return;
75391 }
75392- msg_head = genlmsg_put(skb, 0, atomic_add_return(1, &seq),
75393+ msg_head = genlmsg_put(skb, 0, atomic_add_return_unchecked(1, &seq),
75394 &quota_genl_family, 0, QUOTA_NL_C_WARNING);
75395 if (!msg_head) {
75396 printk(KERN_ERR
75397diff --git a/fs/read_write.c b/fs/read_write.c
75398index 8e1b687..bad2eec 100644
75399--- a/fs/read_write.c
75400+++ b/fs/read_write.c
75401@@ -553,7 +553,7 @@ ssize_t __kernel_write(struct file *file, const char *buf, size_t count, loff_t
75402
75403 old_fs = get_fs();
75404 set_fs(get_ds());
75405- p = (__force const char __user *)buf;
75406+ p = (const char __force_user *)buf;
75407 if (count > MAX_RW_COUNT)
75408 count = MAX_RW_COUNT;
75409 if (file->f_op->write)
75410diff --git a/fs/readdir.c b/fs/readdir.c
75411index ced6791..936687b 100644
75412--- a/fs/readdir.c
75413+++ b/fs/readdir.c
75414@@ -18,6 +18,7 @@
75415 #include <linux/security.h>
75416 #include <linux/syscalls.h>
75417 #include <linux/unistd.h>
75418+#include <linux/namei.h>
75419
75420 #include <asm/uaccess.h>
75421
75422@@ -71,6 +72,7 @@ struct old_linux_dirent {
75423 struct readdir_callback {
75424 struct dir_context ctx;
75425 struct old_linux_dirent __user * dirent;
75426+ struct file * file;
75427 int result;
75428 };
75429
75430@@ -89,6 +91,10 @@ static int fillonedir(struct dir_context *ctx, const char *name, int namlen,
75431 buf->result = -EOVERFLOW;
75432 return -EOVERFLOW;
75433 }
75434+
75435+ if (!gr_acl_handle_filldir(buf->file, name, namlen, ino))
75436+ return 0;
75437+
75438 buf->result++;
75439 dirent = buf->dirent;
75440 if (!access_ok(VERIFY_WRITE, dirent,
75441@@ -120,6 +126,7 @@ SYSCALL_DEFINE3(old_readdir, unsigned int, fd,
75442 if (!f.file)
75443 return -EBADF;
75444
75445+ buf.file = f.file;
75446 error = iterate_dir(f.file, &buf.ctx);
75447 if (buf.result)
75448 error = buf.result;
75449@@ -145,6 +152,7 @@ struct getdents_callback {
75450 struct dir_context ctx;
75451 struct linux_dirent __user * current_dir;
75452 struct linux_dirent __user * previous;
75453+ struct file * file;
75454 int count;
75455 int error;
75456 };
75457@@ -167,6 +175,10 @@ static int filldir(struct dir_context *ctx, const char *name, int namlen,
75458 buf->error = -EOVERFLOW;
75459 return -EOVERFLOW;
75460 }
75461+
75462+ if (!gr_acl_handle_filldir(buf->file, name, namlen, ino))
75463+ return 0;
75464+
75465 dirent = buf->previous;
75466 if (dirent) {
75467 if (__put_user(offset, &dirent->d_off))
75468@@ -212,6 +224,7 @@ SYSCALL_DEFINE3(getdents, unsigned int, fd,
75469 if (!f.file)
75470 return -EBADF;
75471
75472+ buf.file = f.file;
75473 error = iterate_dir(f.file, &buf.ctx);
75474 if (error >= 0)
75475 error = buf.error;
75476@@ -230,6 +243,7 @@ struct getdents_callback64 {
75477 struct dir_context ctx;
75478 struct linux_dirent64 __user * current_dir;
75479 struct linux_dirent64 __user * previous;
75480+ struct file *file;
75481 int count;
75482 int error;
75483 };
75484@@ -246,6 +260,10 @@ static int filldir64(struct dir_context *ctx, const char *name, int namlen,
75485 buf->error = -EINVAL; /* only used if we fail.. */
75486 if (reclen > buf->count)
75487 return -EINVAL;
75488+
75489+ if (!gr_acl_handle_filldir(buf->file, name, namlen, ino))
75490+ return 0;
75491+
75492 dirent = buf->previous;
75493 if (dirent) {
75494 if (__put_user(offset, &dirent->d_off))
75495@@ -293,6 +311,7 @@ SYSCALL_DEFINE3(getdents64, unsigned int, fd,
75496 if (!f.file)
75497 return -EBADF;
75498
75499+ buf.file = f.file;
75500 error = iterate_dir(f.file, &buf.ctx);
75501 if (error >= 0)
75502 error = buf.error;
75503diff --git a/fs/reiserfs/do_balan.c b/fs/reiserfs/do_balan.c
75504index 9c02d96..6562c10 100644
75505--- a/fs/reiserfs/do_balan.c
75506+++ b/fs/reiserfs/do_balan.c
75507@@ -1887,7 +1887,7 @@ void do_balance(struct tree_balance *tb, struct item_head *ih,
75508 return;
75509 }
75510
75511- atomic_inc(&fs_generation(tb->tb_sb));
75512+ atomic_inc_unchecked(&fs_generation(tb->tb_sb));
75513 do_balance_starts(tb);
75514
75515 /*
75516diff --git a/fs/reiserfs/item_ops.c b/fs/reiserfs/item_ops.c
75517index aca73dd..e3c558d 100644
75518--- a/fs/reiserfs/item_ops.c
75519+++ b/fs/reiserfs/item_ops.c
75520@@ -724,18 +724,18 @@ static void errcatch_print_vi(struct virtual_item *vi)
75521 }
75522
75523 static struct item_operations errcatch_ops = {
75524- errcatch_bytes_number,
75525- errcatch_decrement_key,
75526- errcatch_is_left_mergeable,
75527- errcatch_print_item,
75528- errcatch_check_item,
75529+ .bytes_number = errcatch_bytes_number,
75530+ .decrement_key = errcatch_decrement_key,
75531+ .is_left_mergeable = errcatch_is_left_mergeable,
75532+ .print_item = errcatch_print_item,
75533+ .check_item = errcatch_check_item,
75534
75535- errcatch_create_vi,
75536- errcatch_check_left,
75537- errcatch_check_right,
75538- errcatch_part_size,
75539- errcatch_unit_num,
75540- errcatch_print_vi
75541+ .create_vi = errcatch_create_vi,
75542+ .check_left = errcatch_check_left,
75543+ .check_right = errcatch_check_right,
75544+ .part_size = errcatch_part_size,
75545+ .unit_num = errcatch_unit_num,
75546+ .print_vi = errcatch_print_vi
75547 };
75548
75549 #if ! (TYPE_STAT_DATA == 0 && TYPE_INDIRECT == 1 && TYPE_DIRECT == 2 && TYPE_DIRENTRY == 3)
75550diff --git a/fs/reiserfs/procfs.c b/fs/reiserfs/procfs.c
75551index 621b9f3..af527fd 100644
75552--- a/fs/reiserfs/procfs.c
75553+++ b/fs/reiserfs/procfs.c
75554@@ -114,7 +114,7 @@ static int show_super(struct seq_file *m, void *unused)
75555 "SMALL_TAILS " : "NO_TAILS ",
75556 replay_only(sb) ? "REPLAY_ONLY " : "",
75557 convert_reiserfs(sb) ? "CONV " : "",
75558- atomic_read(&r->s_generation_counter),
75559+ atomic_read_unchecked(&r->s_generation_counter),
75560 SF(s_disk_reads), SF(s_disk_writes), SF(s_fix_nodes),
75561 SF(s_do_balance), SF(s_unneeded_left_neighbor),
75562 SF(s_good_search_by_key_reada), SF(s_bmaps),
75563diff --git a/fs/reiserfs/reiserfs.h b/fs/reiserfs/reiserfs.h
75564index bb79cdd..fcf49ef 100644
75565--- a/fs/reiserfs/reiserfs.h
75566+++ b/fs/reiserfs/reiserfs.h
75567@@ -580,7 +580,7 @@ struct reiserfs_sb_info {
75568 /* Comment? -Hans */
75569 wait_queue_head_t s_wait;
75570 /* increased by one every time the tree gets re-balanced */
75571- atomic_t s_generation_counter;
75572+ atomic_unchecked_t s_generation_counter;
75573
75574 /* File system properties. Currently holds on-disk FS format */
75575 unsigned long s_properties;
75576@@ -2301,7 +2301,7 @@ static inline loff_t max_reiserfs_offset(struct inode *inode)
75577 #define REISERFS_USER_MEM 1 /* user memory mode */
75578
75579 #define fs_generation(s) (REISERFS_SB(s)->s_generation_counter)
75580-#define get_generation(s) atomic_read (&fs_generation(s))
75581+#define get_generation(s) atomic_read_unchecked (&fs_generation(s))
75582 #define FILESYSTEM_CHANGED_TB(tb) (get_generation((tb)->tb_sb) != (tb)->fs_gen)
75583 #define __fs_changed(gen,s) (gen != get_generation (s))
75584 #define fs_changed(gen,s) \
75585diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c
75586index 71fbbe3..eff29ba 100644
75587--- a/fs/reiserfs/super.c
75588+++ b/fs/reiserfs/super.c
75589@@ -1868,6 +1868,10 @@ static int reiserfs_fill_super(struct super_block *s, void *data, int silent)
75590 sbi->s_mount_opt |= (1 << REISERFS_SMALLTAIL);
75591 sbi->s_mount_opt |= (1 << REISERFS_ERROR_RO);
75592 sbi->s_mount_opt |= (1 << REISERFS_BARRIER_FLUSH);
75593+#ifdef CONFIG_REISERFS_FS_XATTR
75594+ /* turn on user xattrs by default */
75595+ sbi->s_mount_opt |= (1 << REISERFS_XATTRS_USER);
75596+#endif
75597 /* no preallocation minimum, be smart in reiserfs_file_write instead */
75598 sbi->s_alloc_options.preallocmin = 0;
75599 /* Preallocate by 16 blocks (17-1) at once */
75600diff --git a/fs/select.c b/fs/select.c
75601index f684c75..4117611 100644
75602--- a/fs/select.c
75603+++ b/fs/select.c
75604@@ -20,6 +20,7 @@
75605 #include <linux/export.h>
75606 #include <linux/slab.h>
75607 #include <linux/poll.h>
75608+#include <linux/security.h>
75609 #include <linux/personality.h> /* for STICKY_TIMEOUTS */
75610 #include <linux/file.h>
75611 #include <linux/fdtable.h>
75612@@ -880,6 +881,7 @@ int do_sys_poll(struct pollfd __user *ufds, unsigned int nfds,
75613 struct poll_list *walk = head;
75614 unsigned long todo = nfds;
75615
75616+ gr_learn_resource(current, RLIMIT_NOFILE, nfds, 1);
75617 if (nfds > rlimit(RLIMIT_NOFILE))
75618 return -EINVAL;
75619
75620diff --git a/fs/seq_file.c b/fs/seq_file.c
75621index 555f821..34684d7 100644
75622--- a/fs/seq_file.c
75623+++ b/fs/seq_file.c
75624@@ -12,6 +12,8 @@
75625 #include <linux/slab.h>
75626 #include <linux/cred.h>
75627 #include <linux/mm.h>
75628+#include <linux/sched.h>
75629+#include <linux/grsecurity.h>
75630
75631 #include <asm/uaccess.h>
75632 #include <asm/page.h>
75633@@ -23,16 +25,7 @@ static void seq_set_overflow(struct seq_file *m)
75634
75635 static void *seq_buf_alloc(unsigned long size)
75636 {
75637- void *buf;
75638-
75639- /*
75640- * __GFP_NORETRY to avoid oom-killings with high-order allocations -
75641- * it's better to fall back to vmalloc() than to kill things.
75642- */
75643- buf = kmalloc(size, GFP_KERNEL | __GFP_NORETRY | __GFP_NOWARN);
75644- if (!buf && size > PAGE_SIZE)
75645- buf = vmalloc(size);
75646- return buf;
75647+ return kmalloc(size, GFP_KERNEL | GFP_USERCOPY);
75648 }
75649
75650 /**
75651@@ -65,6 +58,9 @@ int seq_open(struct file *file, const struct seq_operations *op)
75652 #ifdef CONFIG_USER_NS
75653 p->user_ns = file->f_cred->user_ns;
75654 #endif
75655+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
75656+ p->exec_id = current->exec_id;
75657+#endif
75658
75659 /*
75660 * Wrappers around seq_open(e.g. swaps_open) need to be
75661@@ -87,6 +83,16 @@ int seq_open(struct file *file, const struct seq_operations *op)
75662 }
75663 EXPORT_SYMBOL(seq_open);
75664
75665+
75666+int seq_open_restrict(struct file *file, const struct seq_operations *op)
75667+{
75668+ if (gr_proc_is_restricted())
75669+ return -EACCES;
75670+
75671+ return seq_open(file, op);
75672+}
75673+EXPORT_SYMBOL(seq_open_restrict);
75674+
75675 static int traverse(struct seq_file *m, loff_t offset)
75676 {
75677 loff_t pos = 0, index;
75678@@ -158,7 +164,7 @@ Eoverflow:
75679 ssize_t seq_read(struct file *file, char __user *buf, size_t size, loff_t *ppos)
75680 {
75681 struct seq_file *m = file->private_data;
75682- size_t copied = 0;
75683+ ssize_t copied = 0;
75684 loff_t pos;
75685 size_t n;
75686 void *p;
75687@@ -557,7 +563,7 @@ static void single_stop(struct seq_file *p, void *v)
75688 int single_open(struct file *file, int (*show)(struct seq_file *, void *),
75689 void *data)
75690 {
75691- struct seq_operations *op = kmalloc(sizeof(*op), GFP_KERNEL);
75692+ seq_operations_no_const *op = kzalloc(sizeof(*op), GFP_KERNEL);
75693 int res = -ENOMEM;
75694
75695 if (op) {
75696@@ -593,6 +599,17 @@ int single_open_size(struct file *file, int (*show)(struct seq_file *, void *),
75697 }
75698 EXPORT_SYMBOL(single_open_size);
75699
75700+int single_open_restrict(struct file *file, int (*show)(struct seq_file *, void *),
75701+ void *data)
75702+{
75703+ if (gr_proc_is_restricted())
75704+ return -EACCES;
75705+
75706+ return single_open(file, show, data);
75707+}
75708+EXPORT_SYMBOL(single_open_restrict);
75709+
75710+
75711 int single_release(struct inode *inode, struct file *file)
75712 {
75713 const struct seq_operations *op = ((struct seq_file *)file->private_data)->op;
75714diff --git a/fs/splice.c b/fs/splice.c
75715index 7968da9..4ce985b 100644
75716--- a/fs/splice.c
75717+++ b/fs/splice.c
75718@@ -193,7 +193,7 @@ ssize_t splice_to_pipe(struct pipe_inode_info *pipe,
75719 pipe_lock(pipe);
75720
75721 for (;;) {
75722- if (!pipe->readers) {
75723+ if (!atomic_read(&pipe->readers)) {
75724 send_sig(SIGPIPE, current, 0);
75725 if (!ret)
75726 ret = -EPIPE;
75727@@ -216,7 +216,7 @@ ssize_t splice_to_pipe(struct pipe_inode_info *pipe,
75728 page_nr++;
75729 ret += buf->len;
75730
75731- if (pipe->files)
75732+ if (atomic_read(&pipe->files))
75733 do_wakeup = 1;
75734
75735 if (!--spd->nr_pages)
75736@@ -247,9 +247,9 @@ ssize_t splice_to_pipe(struct pipe_inode_info *pipe,
75737 do_wakeup = 0;
75738 }
75739
75740- pipe->waiting_writers++;
75741+ atomic_inc(&pipe->waiting_writers);
75742 pipe_wait(pipe);
75743- pipe->waiting_writers--;
75744+ atomic_dec(&pipe->waiting_writers);
75745 }
75746
75747 pipe_unlock(pipe);
75748@@ -576,7 +576,7 @@ static ssize_t kernel_readv(struct file *file, const struct iovec *vec,
75749 old_fs = get_fs();
75750 set_fs(get_ds());
75751 /* The cast to a user pointer is valid due to the set_fs() */
75752- res = vfs_readv(file, (const struct iovec __user *)vec, vlen, &pos);
75753+ res = vfs_readv(file, (const struct iovec __force_user *)vec, vlen, &pos);
75754 set_fs(old_fs);
75755
75756 return res;
75757@@ -591,7 +591,7 @@ ssize_t kernel_write(struct file *file, const char *buf, size_t count,
75758 old_fs = get_fs();
75759 set_fs(get_ds());
75760 /* The cast to a user pointer is valid due to the set_fs() */
75761- res = vfs_write(file, (__force const char __user *)buf, count, &pos);
75762+ res = vfs_write(file, (const char __force_user *)buf, count, &pos);
75763 set_fs(old_fs);
75764
75765 return res;
75766@@ -644,7 +644,7 @@ ssize_t default_file_splice_read(struct file *in, loff_t *ppos,
75767 goto err;
75768
75769 this_len = min_t(size_t, len, PAGE_CACHE_SIZE - offset);
75770- vec[i].iov_base = (void __user *) page_address(page);
75771+ vec[i].iov_base = (void __force_user *) page_address(page);
75772 vec[i].iov_len = this_len;
75773 spd.pages[i] = page;
75774 spd.nr_pages++;
75775@@ -783,7 +783,7 @@ static int splice_from_pipe_feed(struct pipe_inode_info *pipe, struct splice_des
75776 ops->release(pipe, buf);
75777 pipe->curbuf = (pipe->curbuf + 1) & (pipe->buffers - 1);
75778 pipe->nrbufs--;
75779- if (pipe->files)
75780+ if (atomic_read(&pipe->files))
75781 sd->need_wakeup = true;
75782 }
75783
75784@@ -807,10 +807,10 @@ static int splice_from_pipe_feed(struct pipe_inode_info *pipe, struct splice_des
75785 static int splice_from_pipe_next(struct pipe_inode_info *pipe, struct splice_desc *sd)
75786 {
75787 while (!pipe->nrbufs) {
75788- if (!pipe->writers)
75789+ if (!atomic_read(&pipe->writers))
75790 return 0;
75791
75792- if (!pipe->waiting_writers && sd->num_spliced)
75793+ if (!atomic_read(&pipe->waiting_writers) && sd->num_spliced)
75794 return 0;
75795
75796 if (sd->flags & SPLICE_F_NONBLOCK)
75797@@ -1025,7 +1025,7 @@ iter_file_splice_write(struct pipe_inode_info *pipe, struct file *out,
75798 ops->release(pipe, buf);
75799 pipe->curbuf = (pipe->curbuf + 1) & (pipe->buffers - 1);
75800 pipe->nrbufs--;
75801- if (pipe->files)
75802+ if (atomic_read(&pipe->files))
75803 sd.need_wakeup = true;
75804 } else {
75805 buf->offset += ret;
75806@@ -1159,7 +1159,7 @@ ssize_t splice_direct_to_actor(struct file *in, struct splice_desc *sd,
75807 long ret, bytes;
75808 umode_t i_mode;
75809 size_t len;
75810- int i, flags;
75811+ int i, flags, more;
75812
75813 /*
75814 * We require the input being a regular file, as we don't want to
75815@@ -1185,7 +1185,7 @@ ssize_t splice_direct_to_actor(struct file *in, struct splice_desc *sd,
75816 * out of the pipe right after the splice_to_pipe(). So set
75817 * PIPE_READERS appropriately.
75818 */
75819- pipe->readers = 1;
75820+ atomic_set(&pipe->readers, 1);
75821
75822 current->splice_pipe = pipe;
75823 }
75824@@ -1202,6 +1202,7 @@ ssize_t splice_direct_to_actor(struct file *in, struct splice_desc *sd,
75825 * Don't block on output, we have to drain the direct pipe.
75826 */
75827 sd->flags &= ~SPLICE_F_NONBLOCK;
75828+ more = sd->flags & SPLICE_F_MORE;
75829
75830 while (len) {
75831 size_t read_len;
75832@@ -1215,6 +1216,15 @@ ssize_t splice_direct_to_actor(struct file *in, struct splice_desc *sd,
75833 sd->total_len = read_len;
75834
75835 /*
75836+ * If more data is pending, set SPLICE_F_MORE
75837+ * If this is the last data and SPLICE_F_MORE was not set
75838+ * initially, clears it.
75839+ */
75840+ if (read_len < len)
75841+ sd->flags |= SPLICE_F_MORE;
75842+ else if (!more)
75843+ sd->flags &= ~SPLICE_F_MORE;
75844+ /*
75845 * NOTE: nonblocking mode only applies to the input. We
75846 * must not do the output in nonblocking mode as then we
75847 * could get stuck data in the internal pipe:
75848@@ -1482,6 +1492,7 @@ static int get_iovec_page_array(const struct iovec __user *iov,
75849
75850 partial[buffers].offset = off;
75851 partial[buffers].len = plen;
75852+ partial[buffers].private = 0;
75853
75854 off = 0;
75855 len -= plen;
75856@@ -1718,9 +1729,9 @@ static int ipipe_prep(struct pipe_inode_info *pipe, unsigned int flags)
75857 ret = -ERESTARTSYS;
75858 break;
75859 }
75860- if (!pipe->writers)
75861+ if (!atomic_read(&pipe->writers))
75862 break;
75863- if (!pipe->waiting_writers) {
75864+ if (!atomic_read(&pipe->waiting_writers)) {
75865 if (flags & SPLICE_F_NONBLOCK) {
75866 ret = -EAGAIN;
75867 break;
75868@@ -1752,7 +1763,7 @@ static int opipe_prep(struct pipe_inode_info *pipe, unsigned int flags)
75869 pipe_lock(pipe);
75870
75871 while (pipe->nrbufs >= pipe->buffers) {
75872- if (!pipe->readers) {
75873+ if (!atomic_read(&pipe->readers)) {
75874 send_sig(SIGPIPE, current, 0);
75875 ret = -EPIPE;
75876 break;
75877@@ -1765,9 +1776,9 @@ static int opipe_prep(struct pipe_inode_info *pipe, unsigned int flags)
75878 ret = -ERESTARTSYS;
75879 break;
75880 }
75881- pipe->waiting_writers++;
75882+ atomic_inc(&pipe->waiting_writers);
75883 pipe_wait(pipe);
75884- pipe->waiting_writers--;
75885+ atomic_dec(&pipe->waiting_writers);
75886 }
75887
75888 pipe_unlock(pipe);
75889@@ -1803,14 +1814,14 @@ retry:
75890 pipe_double_lock(ipipe, opipe);
75891
75892 do {
75893- if (!opipe->readers) {
75894+ if (!atomic_read(&opipe->readers)) {
75895 send_sig(SIGPIPE, current, 0);
75896 if (!ret)
75897 ret = -EPIPE;
75898 break;
75899 }
75900
75901- if (!ipipe->nrbufs && !ipipe->writers)
75902+ if (!ipipe->nrbufs && !atomic_read(&ipipe->writers))
75903 break;
75904
75905 /*
75906@@ -1907,7 +1918,7 @@ static int link_pipe(struct pipe_inode_info *ipipe,
75907 pipe_double_lock(ipipe, opipe);
75908
75909 do {
75910- if (!opipe->readers) {
75911+ if (!atomic_read(&opipe->readers)) {
75912 send_sig(SIGPIPE, current, 0);
75913 if (!ret)
75914 ret = -EPIPE;
75915@@ -1952,7 +1963,7 @@ static int link_pipe(struct pipe_inode_info *ipipe,
75916 * return EAGAIN if we have the potential of some data in the
75917 * future, otherwise just return 0
75918 */
75919- if (!ret && ipipe->waiting_writers && (flags & SPLICE_F_NONBLOCK))
75920+ if (!ret && atomic_read(&ipipe->waiting_writers) && (flags & SPLICE_F_NONBLOCK))
75921 ret = -EAGAIN;
75922
75923 pipe_unlock(ipipe);
75924diff --git a/fs/squashfs/xattr.c b/fs/squashfs/xattr.c
75925index 92fcde7..1687329 100644
75926--- a/fs/squashfs/xattr.c
75927+++ b/fs/squashfs/xattr.c
75928@@ -46,8 +46,8 @@ ssize_t squashfs_listxattr(struct dentry *d, char *buffer,
75929 + msblk->xattr_table;
75930 int offset = SQUASHFS_XATTR_OFFSET(squashfs_i(inode)->xattr);
75931 int count = squashfs_i(inode)->xattr_count;
75932- size_t rest = buffer_size;
75933- int err;
75934+ size_t used = 0;
75935+ ssize_t err;
75936
75937 /* check that the file system has xattrs */
75938 if (msblk->xattr_id_table == NULL)
75939@@ -68,11 +68,11 @@ ssize_t squashfs_listxattr(struct dentry *d, char *buffer,
75940 name_size = le16_to_cpu(entry.size);
75941 handler = squashfs_xattr_handler(le16_to_cpu(entry.type));
75942 if (handler)
75943- prefix_size = handler->list(d, buffer, rest, NULL,
75944+ prefix_size = handler->list(d, buffer, buffer ? buffer_size - used : 0, NULL,
75945 name_size, handler->flags);
75946 if (prefix_size) {
75947 if (buffer) {
75948- if (prefix_size + name_size + 1 > rest) {
75949+ if (prefix_size + name_size + 1 > buffer_size - used) {
75950 err = -ERANGE;
75951 goto failed;
75952 }
75953@@ -86,7 +86,7 @@ ssize_t squashfs_listxattr(struct dentry *d, char *buffer,
75954 buffer[name_size] = '\0';
75955 buffer += name_size + 1;
75956 }
75957- rest -= prefix_size + name_size + 1;
75958+ used += prefix_size + name_size + 1;
75959 } else {
75960 /* no handler or insuffficient privileges, so skip */
75961 err = squashfs_read_metadata(sb, NULL, &start,
75962@@ -107,7 +107,7 @@ ssize_t squashfs_listxattr(struct dentry *d, char *buffer,
75963 if (err < 0)
75964 goto failed;
75965 }
75966- err = buffer_size - rest;
75967+ err = used;
75968
75969 failed:
75970 return err;
75971diff --git a/fs/stat.c b/fs/stat.c
75972index ae0c3ce..9ee641c 100644
75973--- a/fs/stat.c
75974+++ b/fs/stat.c
75975@@ -28,8 +28,13 @@ void generic_fillattr(struct inode *inode, struct kstat *stat)
75976 stat->gid = inode->i_gid;
75977 stat->rdev = inode->i_rdev;
75978 stat->size = i_size_read(inode);
75979- stat->atime = inode->i_atime;
75980- stat->mtime = inode->i_mtime;
75981+ if (is_sidechannel_device(inode) && !capable_nolog(CAP_MKNOD)) {
75982+ stat->atime = inode->i_ctime;
75983+ stat->mtime = inode->i_ctime;
75984+ } else {
75985+ stat->atime = inode->i_atime;
75986+ stat->mtime = inode->i_mtime;
75987+ }
75988 stat->ctime = inode->i_ctime;
75989 stat->blksize = (1 << inode->i_blkbits);
75990 stat->blocks = inode->i_blocks;
75991@@ -52,9 +57,16 @@ EXPORT_SYMBOL(generic_fillattr);
75992 int vfs_getattr_nosec(struct path *path, struct kstat *stat)
75993 {
75994 struct inode *inode = path->dentry->d_inode;
75995+ int retval;
75996
75997- if (inode->i_op->getattr)
75998- return inode->i_op->getattr(path->mnt, path->dentry, stat);
75999+ if (inode->i_op->getattr) {
76000+ retval = inode->i_op->getattr(path->mnt, path->dentry, stat);
76001+ if (!retval && is_sidechannel_device(inode) && !capable_nolog(CAP_MKNOD)) {
76002+ stat->atime = stat->ctime;
76003+ stat->mtime = stat->ctime;
76004+ }
76005+ return retval;
76006+ }
76007
76008 generic_fillattr(inode, stat);
76009 return 0;
76010diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c
76011index 0b45ff4..edf9d3a 100644
76012--- a/fs/sysfs/dir.c
76013+++ b/fs/sysfs/dir.c
76014@@ -33,6 +33,10 @@ void sysfs_warn_dup(struct kernfs_node *parent, const char *name)
76015 kfree(buf);
76016 }
76017
76018+#ifdef CONFIG_GRKERNSEC_SYSFS_RESTRICT
76019+extern int grsec_enable_sysfs_restrict;
76020+#endif
76021+
76022 /**
76023 * sysfs_create_dir_ns - create a directory for an object with a namespace tag
76024 * @kobj: object we're creating directory for
76025@@ -41,9 +45,16 @@ void sysfs_warn_dup(struct kernfs_node *parent, const char *name)
76026 int sysfs_create_dir_ns(struct kobject *kobj, const void *ns)
76027 {
76028 struct kernfs_node *parent, *kn;
76029+ const char *name;
76030+ umode_t mode = S_IRWXU | S_IRUGO | S_IXUGO;
76031+#ifdef CONFIG_GRKERNSEC_SYSFS_RESTRICT
76032+ const char *parent_name;
76033+#endif
76034
76035 BUG_ON(!kobj);
76036
76037+ name = kobject_name(kobj);
76038+
76039 if (kobj->parent)
76040 parent = kobj->parent->sd;
76041 else
76042@@ -52,11 +63,24 @@ int sysfs_create_dir_ns(struct kobject *kobj, const void *ns)
76043 if (!parent)
76044 return -ENOENT;
76045
76046- kn = kernfs_create_dir_ns(parent, kobject_name(kobj),
76047- S_IRWXU | S_IRUGO | S_IXUGO, kobj, ns);
76048+#ifdef CONFIG_GRKERNSEC_SYSFS_RESTRICT
76049+ parent_name = parent->name;
76050+ mode = S_IRWXU;
76051+
76052+ if ((!strcmp(parent_name, "") && (!strcmp(name, "devices") || !strcmp(name, "fs"))) ||
76053+ (!strcmp(parent_name, "devices") && !strcmp(name, "system")) ||
76054+ (!strcmp(parent_name, "fs") && (!strcmp(name, "selinux") || !strcmp(name, "fuse") || !strcmp(name, "ecryptfs"))) ||
76055+ (!strcmp(parent_name, "system") && !strcmp(name, "cpu")))
76056+ mode = S_IRWXU | S_IRUGO | S_IXUGO;
76057+ if (!grsec_enable_sysfs_restrict)
76058+ mode = S_IRWXU | S_IRUGO | S_IXUGO;
76059+#endif
76060+
76061+ kn = kernfs_create_dir_ns(parent, name,
76062+ mode, kobj, ns);
76063 if (IS_ERR(kn)) {
76064 if (PTR_ERR(kn) == -EEXIST)
76065- sysfs_warn_dup(parent, kobject_name(kobj));
76066+ sysfs_warn_dup(parent, name);
76067 return PTR_ERR(kn);
76068 }
76069
76070diff --git a/fs/sysv/sysv.h b/fs/sysv/sysv.h
76071index 69d4889..a810bd4 100644
76072--- a/fs/sysv/sysv.h
76073+++ b/fs/sysv/sysv.h
76074@@ -188,7 +188,7 @@ static inline u32 PDP_swab(u32 x)
76075 #endif
76076 }
76077
76078-static inline __u32 fs32_to_cpu(struct sysv_sb_info *sbi, __fs32 n)
76079+static inline __u32 __intentional_overflow(-1) fs32_to_cpu(struct sysv_sb_info *sbi, __fs32 n)
76080 {
76081 if (sbi->s_bytesex == BYTESEX_PDP)
76082 return PDP_swab((__force __u32)n);
76083diff --git a/fs/ubifs/io.c b/fs/ubifs/io.c
76084index fb08b0c..65fcc7e 100644
76085--- a/fs/ubifs/io.c
76086+++ b/fs/ubifs/io.c
76087@@ -155,7 +155,7 @@ int ubifs_leb_change(struct ubifs_info *c, int lnum, const void *buf, int len)
76088 return err;
76089 }
76090
76091-int ubifs_leb_unmap(struct ubifs_info *c, int lnum)
76092+int __intentional_overflow(-1) ubifs_leb_unmap(struct ubifs_info *c, int lnum)
76093 {
76094 int err;
76095
76096diff --git a/fs/udf/misc.c b/fs/udf/misc.c
76097index c175b4d..8f36a16 100644
76098--- a/fs/udf/misc.c
76099+++ b/fs/udf/misc.c
76100@@ -289,7 +289,7 @@ void udf_new_tag(char *data, uint16_t ident, uint16_t version, uint16_t snum,
76101
76102 u8 udf_tag_checksum(const struct tag *t)
76103 {
76104- u8 *data = (u8 *)t;
76105+ const u8 *data = (const u8 *)t;
76106 u8 checksum = 0;
76107 int i;
76108 for (i = 0; i < sizeof(struct tag); ++i)
76109diff --git a/fs/ufs/swab.h b/fs/ufs/swab.h
76110index 8d974c4..b82f6ec 100644
76111--- a/fs/ufs/swab.h
76112+++ b/fs/ufs/swab.h
76113@@ -22,7 +22,7 @@ enum {
76114 BYTESEX_BE
76115 };
76116
76117-static inline u64
76118+static inline u64 __intentional_overflow(-1)
76119 fs64_to_cpu(struct super_block *sbp, __fs64 n)
76120 {
76121 if (UFS_SB(sbp)->s_bytesex == BYTESEX_LE)
76122@@ -40,7 +40,7 @@ cpu_to_fs64(struct super_block *sbp, u64 n)
76123 return (__force __fs64)cpu_to_be64(n);
76124 }
76125
76126-static inline u32
76127+static inline u32 __intentional_overflow(-1)
76128 fs32_to_cpu(struct super_block *sbp, __fs32 n)
76129 {
76130 if (UFS_SB(sbp)->s_bytesex == BYTESEX_LE)
76131diff --git a/fs/utimes.c b/fs/utimes.c
76132index aa138d6..5f3a811 100644
76133--- a/fs/utimes.c
76134+++ b/fs/utimes.c
76135@@ -1,6 +1,7 @@
76136 #include <linux/compiler.h>
76137 #include <linux/file.h>
76138 #include <linux/fs.h>
76139+#include <linux/security.h>
76140 #include <linux/linkage.h>
76141 #include <linux/mount.h>
76142 #include <linux/namei.h>
76143@@ -103,6 +104,12 @@ static int utimes_common(struct path *path, struct timespec *times)
76144 }
76145 }
76146 retry_deleg:
76147+
76148+ if (!gr_acl_handle_utime(path->dentry, path->mnt)) {
76149+ error = -EACCES;
76150+ goto mnt_drop_write_and_out;
76151+ }
76152+
76153 mutex_lock(&inode->i_mutex);
76154 error = notify_change(path->dentry, &newattrs, &delegated_inode);
76155 mutex_unlock(&inode->i_mutex);
76156diff --git a/fs/xattr.c b/fs/xattr.c
76157index 4ef6985..a6cd6567 100644
76158--- a/fs/xattr.c
76159+++ b/fs/xattr.c
76160@@ -227,6 +227,27 @@ int vfs_xattr_cmp(struct dentry *dentry, const char *xattr_name,
76161 return rc;
76162 }
76163
76164+#ifdef CONFIG_PAX_XATTR_PAX_FLAGS
76165+ssize_t
76166+pax_getxattr(struct dentry *dentry, void *value, size_t size)
76167+{
76168+ struct inode *inode = dentry->d_inode;
76169+ ssize_t error;
76170+
76171+ error = inode_permission(inode, MAY_EXEC);
76172+ if (error)
76173+ return error;
76174+
76175+ if (inode->i_op->getxattr)
76176+ error = inode->i_op->getxattr(dentry, XATTR_NAME_PAX_FLAGS, value, size);
76177+ else
76178+ error = -EOPNOTSUPP;
76179+
76180+ return error;
76181+}
76182+EXPORT_SYMBOL(pax_getxattr);
76183+#endif
76184+
76185 ssize_t
76186 vfs_getxattr(struct dentry *dentry, const char *name, void *value, size_t size)
76187 {
76188@@ -319,7 +340,7 @@ EXPORT_SYMBOL_GPL(vfs_removexattr);
76189 * Extended attribute SET operations
76190 */
76191 static long
76192-setxattr(struct dentry *d, const char __user *name, const void __user *value,
76193+setxattr(struct path *path, const char __user *name, const void __user *value,
76194 size_t size, int flags)
76195 {
76196 int error;
76197@@ -355,7 +376,12 @@ setxattr(struct dentry *d, const char __user *name, const void __user *value,
76198 posix_acl_fix_xattr_from_user(kvalue, size);
76199 }
76200
76201- error = vfs_setxattr(d, kname, kvalue, size, flags);
76202+ if (!gr_acl_handle_setxattr(path->dentry, path->mnt)) {
76203+ error = -EACCES;
76204+ goto out;
76205+ }
76206+
76207+ error = vfs_setxattr(path->dentry, kname, kvalue, size, flags);
76208 out:
76209 if (vvalue)
76210 vfree(vvalue);
76211@@ -376,7 +402,7 @@ retry:
76212 return error;
76213 error = mnt_want_write(path.mnt);
76214 if (!error) {
76215- error = setxattr(path.dentry, name, value, size, flags);
76216+ error = setxattr(&path, name, value, size, flags);
76217 mnt_drop_write(path.mnt);
76218 }
76219 path_put(&path);
76220@@ -412,7 +438,7 @@ SYSCALL_DEFINE5(fsetxattr, int, fd, const char __user *, name,
76221 audit_file(f.file);
76222 error = mnt_want_write_file(f.file);
76223 if (!error) {
76224- error = setxattr(f.file->f_path.dentry, name, value, size, flags);
76225+ error = setxattr(&f.file->f_path, name, value, size, flags);
76226 mnt_drop_write_file(f.file);
76227 }
76228 fdput(f);
76229@@ -598,7 +624,7 @@ SYSCALL_DEFINE3(flistxattr, int, fd, char __user *, list, size_t, size)
76230 * Extended attribute REMOVE operations
76231 */
76232 static long
76233-removexattr(struct dentry *d, const char __user *name)
76234+removexattr(struct path *path, const char __user *name)
76235 {
76236 int error;
76237 char kname[XATTR_NAME_MAX + 1];
76238@@ -609,7 +635,10 @@ removexattr(struct dentry *d, const char __user *name)
76239 if (error < 0)
76240 return error;
76241
76242- return vfs_removexattr(d, kname);
76243+ if (!gr_acl_handle_removexattr(path->dentry, path->mnt))
76244+ return -EACCES;
76245+
76246+ return vfs_removexattr(path->dentry, kname);
76247 }
76248
76249 static int path_removexattr(const char __user *pathname,
76250@@ -623,7 +652,7 @@ retry:
76251 return error;
76252 error = mnt_want_write(path.mnt);
76253 if (!error) {
76254- error = removexattr(path.dentry, name);
76255+ error = removexattr(&path, name);
76256 mnt_drop_write(path.mnt);
76257 }
76258 path_put(&path);
76259@@ -649,14 +678,16 @@ SYSCALL_DEFINE2(lremovexattr, const char __user *, pathname,
76260 SYSCALL_DEFINE2(fremovexattr, int, fd, const char __user *, name)
76261 {
76262 struct fd f = fdget(fd);
76263+ struct path *path;
76264 int error = -EBADF;
76265
76266 if (!f.file)
76267 return error;
76268+ path = &f.file->f_path;
76269 audit_file(f.file);
76270 error = mnt_want_write_file(f.file);
76271 if (!error) {
76272- error = removexattr(f.file->f_path.dentry, name);
76273+ error = removexattr(path, name);
76274 mnt_drop_write_file(f.file);
76275 }
76276 fdput(f);
76277diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c
76278index 61ec015..7c18807 100644
76279--- a/fs/xfs/libxfs/xfs_bmap.c
76280+++ b/fs/xfs/libxfs/xfs_bmap.c
76281@@ -580,7 +580,7 @@ xfs_bmap_validate_ret(
76282
76283 #else
76284 #define xfs_bmap_check_leaf_extents(cur, ip, whichfork) do { } while (0)
76285-#define xfs_bmap_validate_ret(bno,len,flags,mval,onmap,nmap)
76286+#define xfs_bmap_validate_ret(bno,len,flags,mval,onmap,nmap) do { } while (0)
76287 #endif /* DEBUG */
76288
76289 /*
76290diff --git a/fs/xfs/xfs_dir2_readdir.c b/fs/xfs/xfs_dir2_readdir.c
76291index 098cd78..724d3f8 100644
76292--- a/fs/xfs/xfs_dir2_readdir.c
76293+++ b/fs/xfs/xfs_dir2_readdir.c
76294@@ -140,7 +140,12 @@ xfs_dir2_sf_getdents(
76295 ino = dp->d_ops->sf_get_ino(sfp, sfep);
76296 filetype = dp->d_ops->sf_get_ftype(sfep);
76297 ctx->pos = off & 0x7fffffff;
76298- if (!dir_emit(ctx, (char *)sfep->name, sfep->namelen, ino,
76299+ if (dp->i_df.if_u1.if_data == dp->i_df.if_u2.if_inline_data) {
76300+ char name[sfep->namelen];
76301+ memcpy(name, sfep->name, sfep->namelen);
76302+ if (!dir_emit(ctx, name, sfep->namelen, ino, xfs_dir3_get_dtype(dp->i_mount, filetype)))
76303+ return 0;
76304+ } else if (!dir_emit(ctx, (char *)sfep->name, sfep->namelen, ino,
76305 xfs_dir3_get_dtype(dp->i_mount, filetype)))
76306 return 0;
76307 sfep = dp->d_ops->sf_nextentry(sfp, sfep);
76308diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c
76309index ac4feae..386d551 100644
76310--- a/fs/xfs/xfs_ioctl.c
76311+++ b/fs/xfs/xfs_ioctl.c
76312@@ -120,7 +120,7 @@ xfs_find_handle(
76313 }
76314
76315 error = -EFAULT;
76316- if (copy_to_user(hreq->ohandle, &handle, hsize) ||
76317+ if (hsize > sizeof handle || copy_to_user(hreq->ohandle, &handle, hsize) ||
76318 copy_to_user(hreq->ohandlen, &hsize, sizeof(__s32)))
76319 goto out_put;
76320
76321diff --git a/fs/xfs/xfs_linux.h b/fs/xfs/xfs_linux.h
76322index c31d2c2..6ec8f62 100644
76323--- a/fs/xfs/xfs_linux.h
76324+++ b/fs/xfs/xfs_linux.h
76325@@ -234,7 +234,7 @@ static inline kgid_t xfs_gid_to_kgid(__uint32_t gid)
76326 * of the compiler which do not like us using do_div in the middle
76327 * of large functions.
76328 */
76329-static inline __u32 xfs_do_div(void *a, __u32 b, int n)
76330+static inline __u32 __intentional_overflow(-1) xfs_do_div(void *a, __u32 b, int n)
76331 {
76332 __u32 mod;
76333
76334@@ -290,7 +290,7 @@ static inline __u32 xfs_do_mod(void *a, __u32 b, int n)
76335 return 0;
76336 }
76337 #else
76338-static inline __u32 xfs_do_div(void *a, __u32 b, int n)
76339+static inline __u32 __intentional_overflow(-1) xfs_do_div(void *a, __u32 b, int n)
76340 {
76341 __u32 mod;
76342
76343diff --git a/grsecurity/Kconfig b/grsecurity/Kconfig
76344new file mode 100644
76345index 0000000..31f8fe4
76346--- /dev/null
76347+++ b/grsecurity/Kconfig
76348@@ -0,0 +1,1182 @@
76349+#
76350+# grecurity configuration
76351+#
76352+menu "Memory Protections"
76353+depends on GRKERNSEC
76354+
76355+config GRKERNSEC_KMEM
76356+ bool "Deny reading/writing to /dev/kmem, /dev/mem, and /dev/port"
76357+ default y if GRKERNSEC_CONFIG_AUTO
76358+ select STRICT_DEVMEM if (X86 || ARM || TILE || S390)
76359+ help
76360+ If you say Y here, /dev/kmem and /dev/mem won't be allowed to
76361+ be written to or read from to modify or leak the contents of the running
76362+ kernel. /dev/port will also not be allowed to be opened, writing to
76363+ /dev/cpu/*/msr will be prevented, and support for kexec will be removed.
76364+ If you have module support disabled, enabling this will close up several
76365+ ways that are currently used to insert malicious code into the running
76366+ kernel.
76367+
76368+ Even with this feature enabled, we still highly recommend that
76369+ you use the RBAC system, as it is still possible for an attacker to
76370+ modify the running kernel through other more obscure methods.
76371+
76372+ It is highly recommended that you say Y here if you meet all the
76373+ conditions above.
76374+
76375+config GRKERNSEC_VM86
76376+ bool "Restrict VM86 mode"
76377+ default y if (GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_SERVER)
76378+ depends on X86_32
76379+
76380+ help
76381+ If you say Y here, only processes with CAP_SYS_RAWIO will be able to
76382+ make use of a special execution mode on 32bit x86 processors called
76383+ Virtual 8086 (VM86) mode. XFree86 may need vm86 mode for certain
76384+ video cards and will still work with this option enabled. The purpose
76385+ of the option is to prevent exploitation of emulation errors in
76386+ virtualization of vm86 mode like the one discovered in VMWare in 2009.
76387+ Nearly all users should be able to enable this option.
76388+
76389+config GRKERNSEC_IO
76390+ bool "Disable privileged I/O"
76391+ default y if (GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_SERVER)
76392+ depends on X86
76393+ select RTC_CLASS
76394+ select RTC_INTF_DEV
76395+ select RTC_DRV_CMOS
76396+
76397+ help
76398+ If you say Y here, all ioperm and iopl calls will return an error.
76399+ Ioperm and iopl can be used to modify the running kernel.
76400+ Unfortunately, some programs need this access to operate properly,
76401+ the most notable of which are XFree86 and hwclock. hwclock can be
76402+ remedied by having RTC support in the kernel, so real-time
76403+ clock support is enabled if this option is enabled, to ensure
76404+ that hwclock operates correctly. If hwclock still does not work,
76405+ either update udev or symlink /dev/rtc to /dev/rtc0.
76406+
76407+ If you're using XFree86 or a version of Xorg from 2012 or earlier,
76408+ you may not be able to boot into a graphical environment with this
76409+ option enabled. In this case, you should use the RBAC system instead.
76410+
76411+config GRKERNSEC_BPF_HARDEN
76412+ bool "Harden BPF interpreter"
76413+ default y if GRKERNSEC_CONFIG_AUTO
76414+ help
76415+ Unlike previous versions of grsecurity that hardened both the BPF
76416+ interpreted code against corruption at rest as well as the JIT code
76417+ against JIT-spray attacks and attacker-controlled immediate values
76418+ for ROP, this feature will enforce disabling of the new eBPF JIT engine
76419+ and will ensure the interpreted code is read-only at rest. This feature
76420+ may be removed at a later time when eBPF stabilizes to entirely revert
76421+ back to the more secure pre-3.16 BPF interpreter/JIT.
76422+
76423+ If you're using KERNEXEC, it's recommended that you enable this option
76424+ to supplement the hardening of the kernel.
76425+
76426+config GRKERNSEC_PERF_HARDEN
76427+ bool "Disable unprivileged PERF_EVENTS usage by default"
76428+ default y if GRKERNSEC_CONFIG_AUTO
76429+ depends on PERF_EVENTS
76430+ help
76431+ If you say Y here, the range of acceptable values for the
76432+ /proc/sys/kernel/perf_event_paranoid sysctl will be expanded to allow and
76433+ default to a new value: 3. When the sysctl is set to this value, no
76434+ unprivileged use of the PERF_EVENTS syscall interface will be permitted.
76435+
76436+ Though PERF_EVENTS can be used legitimately for performance monitoring
76437+ and low-level application profiling, it is forced on regardless of
76438+ configuration, has been at fault for several vulnerabilities, and
76439+ creates new opportunities for side channels and other information leaks.
76440+
76441+ This feature puts PERF_EVENTS into a secure default state and permits
76442+ the administrator to change out of it temporarily if unprivileged
76443+ application profiling is needed.
76444+
76445+config GRKERNSEC_RAND_THREADSTACK
76446+ bool "Insert random gaps between thread stacks"
76447+ default y if GRKERNSEC_CONFIG_AUTO
76448+ depends on PAX_RANDMMAP && !PPC
76449+ help
76450+ If you say Y here, a random-sized gap will be enforced between allocated
76451+ thread stacks. Glibc's NPTL and other threading libraries that
76452+ pass MAP_STACK to the kernel for thread stack allocation are supported.
76453+ The implementation currently provides 8 bits of entropy for the gap.
76454+
76455+ Many distributions do not compile threaded remote services with the
76456+ -fstack-check argument to GCC, causing the variable-sized stack-based
76457+ allocator, alloca(), to not probe the stack on allocation. This
76458+ permits an unbounded alloca() to skip over any guard page and potentially
76459+ modify another thread's stack reliably. An enforced random gap
76460+ reduces the reliability of such an attack and increases the chance
76461+ that such a read/write to another thread's stack instead lands in
76462+ an unmapped area, causing a crash and triggering grsecurity's
76463+ anti-bruteforcing logic.
76464+
76465+config GRKERNSEC_PROC_MEMMAP
76466+ bool "Harden ASLR against information leaks and entropy reduction"
76467+ default y if (GRKERNSEC_CONFIG_AUTO || PAX_NOEXEC || PAX_ASLR)
76468+ depends on PAX_NOEXEC || PAX_ASLR
76469+ help
76470+ If you say Y here, the /proc/<pid>/maps and /proc/<pid>/stat files will
76471+ give no information about the addresses of its mappings if
76472+ PaX features that rely on random addresses are enabled on the task.
76473+ In addition to sanitizing this information and disabling other
76474+ dangerous sources of information, this option causes reads of sensitive
76475+ /proc/<pid> entries where the file descriptor was opened in a different
76476+ task than the one performing the read. Such attempts are logged.
76477+ This option also limits argv/env strings for suid/sgid binaries
76478+ to 512KB to prevent a complete exhaustion of the stack entropy provided
76479+ by ASLR. Finally, it places an 8MB stack resource limit on suid/sgid
76480+ binaries to prevent alternative mmap layouts from being abused.
76481+
76482+ If you use PaX it is essential that you say Y here as it closes up
76483+ several holes that make full ASLR useless locally.
76484+
76485+
76486+config GRKERNSEC_KSTACKOVERFLOW
76487+ bool "Prevent kernel stack overflows"
76488+ default y if GRKERNSEC_CONFIG_AUTO
76489+ depends on !IA64 && 64BIT
76490+ help
76491+ If you say Y here, the kernel's process stacks will be allocated
76492+ with vmalloc instead of the kernel's default allocator. This
76493+ introduces guard pages that in combination with the alloca checking
76494+ of the STACKLEAK feature prevents all forms of kernel process stack
76495+ overflow abuse. Note that this is different from kernel stack
76496+ buffer overflows.
76497+
76498+config GRKERNSEC_BRUTE
76499+ bool "Deter exploit bruteforcing"
76500+ default y if GRKERNSEC_CONFIG_AUTO
76501+ help
76502+ If you say Y here, attempts to bruteforce exploits against forking
76503+ daemons such as apache or sshd, as well as against suid/sgid binaries
76504+ will be deterred. When a child of a forking daemon is killed by PaX
76505+ or crashes due to an illegal instruction or other suspicious signal,
76506+ the parent process will be delayed 30 seconds upon every subsequent
76507+ fork until the administrator is able to assess the situation and
76508+ restart the daemon.
76509+ In the suid/sgid case, the attempt is logged, the user has all their
76510+ existing instances of the suid/sgid binary terminated and will
76511+ be unable to execute any suid/sgid binaries for 15 minutes.
76512+
76513+ It is recommended that you also enable signal logging in the auditing
76514+ section so that logs are generated when a process triggers a suspicious
76515+ signal.
76516+ If the sysctl option is enabled, a sysctl option with name
76517+ "deter_bruteforce" is created.
76518+
76519+config GRKERNSEC_MODHARDEN
76520+ bool "Harden module auto-loading"
76521+ default y if GRKERNSEC_CONFIG_AUTO
76522+ depends on MODULES
76523+ help
76524+ If you say Y here, module auto-loading in response to use of some
76525+ feature implemented by an unloaded module will be restricted to
76526+ root users. Enabling this option helps defend against attacks
76527+ by unprivileged users who abuse the auto-loading behavior to
76528+ cause a vulnerable module to load that is then exploited.
76529+
76530+ If this option prevents a legitimate use of auto-loading for a
76531+ non-root user, the administrator can execute modprobe manually
76532+ with the exact name of the module mentioned in the alert log.
76533+ Alternatively, the administrator can add the module to the list
76534+ of modules loaded at boot by modifying init scripts.
76535+
76536+ Modification of init scripts will most likely be needed on
76537+ Ubuntu servers with encrypted home directory support enabled,
76538+ as the first non-root user logging in will cause the ecb(aes),
76539+ ecb(aes)-all, cbc(aes), and cbc(aes)-all modules to be loaded.
76540+
76541+config GRKERNSEC_HIDESYM
76542+ bool "Hide kernel symbols"
76543+ default y if GRKERNSEC_CONFIG_AUTO
76544+ select PAX_USERCOPY_SLABS
76545+ help
76546+ If you say Y here, getting information on loaded modules, and
76547+ displaying all kernel symbols through a syscall will be restricted
76548+ to users with CAP_SYS_MODULE. For software compatibility reasons,
76549+ /proc/kallsyms will be restricted to the root user. The RBAC
76550+ system can hide that entry even from root.
76551+
76552+ This option also prevents leaking of kernel addresses through
76553+ several /proc entries.
76554+
76555+ Note that this option is only effective provided the following
76556+ conditions are met:
76557+ 1) The kernel using grsecurity is not precompiled by some distribution
76558+ 2) You have also enabled GRKERNSEC_DMESG
76559+ 3) You are using the RBAC system and hiding other files such as your
76560+ kernel image and System.map. Alternatively, enabling this option
76561+ causes the permissions on /boot, /lib/modules, and the kernel
76562+ source directory to change at compile time to prevent
76563+ reading by non-root users.
76564+ If the above conditions are met, this option will aid in providing a
76565+ useful protection against local kernel exploitation of overflows
76566+ and arbitrary read/write vulnerabilities.
76567+
76568+ It is highly recommended that you enable GRKERNSEC_PERF_HARDEN
76569+ in addition to this feature.
76570+
76571+config GRKERNSEC_RANDSTRUCT
76572+ bool "Randomize layout of sensitive kernel structures"
76573+ default y if GRKERNSEC_CONFIG_AUTO
76574+ select GRKERNSEC_HIDESYM
76575+ select MODVERSIONS if MODULES
76576+ help
76577+ If you say Y here, the layouts of a number of sensitive kernel
76578+ structures (task, fs, cred, etc) and all structures composed entirely
76579+ of function pointers (aka "ops" structs) will be randomized at compile-time.
76580+ This can introduce the requirement of an additional infoleak
76581+ vulnerability for exploits targeting these structure types.
76582+
76583+ Enabling this feature will introduce some performance impact, slightly
76584+ increase memory usage, and prevent the use of forensic tools like
76585+ Volatility against the system (unless the kernel source tree isn't
76586+ cleaned after kernel installation).
76587+
76588+ The seed used for compilation is located at tools/gcc/randomize_layout_seed.h.
76589+ It remains after a make clean to allow for external modules to be compiled
76590+ with the existing seed and will be removed by a make mrproper or
76591+ make distclean.
76592+
76593+ Note that the implementation requires gcc 4.6.4. or newer. You may need
76594+ to install the supporting headers explicitly in addition to the normal
76595+ gcc package.
76596+
76597+config GRKERNSEC_RANDSTRUCT_PERFORMANCE
76598+ bool "Use cacheline-aware structure randomization"
76599+ depends on GRKERNSEC_RANDSTRUCT
76600+ default y if GRKERNSEC_CONFIG_PRIORITY_PERF
76601+ help
76602+ If you say Y here, the RANDSTRUCT randomization will make a best effort
76603+ at restricting randomization to cacheline-sized groups of elements. It
76604+ will further not randomize bitfields in structures. This reduces the
76605+ performance hit of RANDSTRUCT at the cost of weakened randomization.
76606+
76607+config GRKERNSEC_KERN_LOCKOUT
76608+ bool "Active kernel exploit response"
76609+ default y if GRKERNSEC_CONFIG_AUTO
76610+ depends on X86 || ARM || PPC || SPARC
76611+ help
76612+ If you say Y here, when a PaX alert is triggered due to suspicious
76613+ activity in the kernel (from KERNEXEC/UDEREF/USERCOPY)
76614+ or an OOPS occurs due to bad memory accesses, instead of just
76615+ terminating the offending process (and potentially allowing
76616+ a subsequent exploit from the same user), we will take one of two
76617+ actions:
76618+ If the user was root, we will panic the system
76619+ If the user was non-root, we will log the attempt, terminate
76620+ all processes owned by the user, then prevent them from creating
76621+ any new processes until the system is restarted
76622+ This deters repeated kernel exploitation/bruteforcing attempts
76623+ and is useful for later forensics.
76624+
76625+config GRKERNSEC_OLD_ARM_USERLAND
76626+ bool "Old ARM userland compatibility"
76627+ depends on ARM && (CPU_V6 || CPU_V6K || CPU_V7)
76628+ help
76629+ If you say Y here, stubs of executable code to perform such operations
76630+ as "compare-exchange" will be placed at fixed locations in the ARM vector
76631+ table. This is unfortunately needed for old ARM userland meant to run
76632+ across a wide range of processors. Without this option enabled,
76633+ the get_tls and data memory barrier stubs will be emulated by the kernel,
76634+ which is enough for Linaro userlands or other userlands designed for v6
76635+ and newer ARM CPUs. It's recommended that you try without this option enabled
76636+ first, and only enable it if your userland does not boot (it will likely fail
76637+ at init time).
76638+
76639+endmenu
76640+menu "Role Based Access Control Options"
76641+depends on GRKERNSEC
76642+
76643+config GRKERNSEC_RBAC_DEBUG
76644+ bool
76645+
76646+config GRKERNSEC_NO_RBAC
76647+ bool "Disable RBAC system"
76648+ help
76649+ If you say Y here, the /dev/grsec device will be removed from the kernel,
76650+ preventing the RBAC system from being enabled. You should only say Y
76651+ here if you have no intention of using the RBAC system, so as to prevent
76652+ an attacker with root access from misusing the RBAC system to hide files
76653+ and processes when loadable module support and /dev/[k]mem have been
76654+ locked down.
76655+
76656+config GRKERNSEC_ACL_HIDEKERN
76657+ bool "Hide kernel processes"
76658+ help
76659+ If you say Y here, all kernel threads will be hidden to all
76660+ processes but those whose subject has the "view hidden processes"
76661+ flag.
76662+
76663+config GRKERNSEC_ACL_MAXTRIES
76664+ int "Maximum tries before password lockout"
76665+ default 3
76666+ help
76667+ This option enforces the maximum number of times a user can attempt
76668+ to authorize themselves with the grsecurity RBAC system before being
76669+ denied the ability to attempt authorization again for a specified time.
76670+ The lower the number, the harder it will be to brute-force a password.
76671+
76672+config GRKERNSEC_ACL_TIMEOUT
76673+ int "Time to wait after max password tries, in seconds"
76674+ default 30
76675+ help
76676+ This option specifies the time the user must wait after attempting to
76677+ authorize to the RBAC system with the maximum number of invalid
76678+ passwords. The higher the number, the harder it will be to brute-force
76679+ a password.
76680+
76681+endmenu
76682+menu "Filesystem Protections"
76683+depends on GRKERNSEC
76684+
76685+config GRKERNSEC_PROC
76686+ bool "Proc restrictions"
76687+ default y if GRKERNSEC_CONFIG_AUTO
76688+ help
76689+ If you say Y here, the permissions of the /proc filesystem
76690+ will be altered to enhance system security and privacy. You MUST
76691+ choose either a user only restriction or a user and group restriction.
76692+ Depending upon the option you choose, you can either restrict users to
76693+ see only the processes they themselves run, or choose a group that can
76694+ view all processes and files normally restricted to root if you choose
76695+ the "restrict to user only" option. NOTE: If you're running identd or
76696+ ntpd as a non-root user, you will have to run it as the group you
76697+ specify here.
76698+
76699+config GRKERNSEC_PROC_USER
76700+ bool "Restrict /proc to user only"
76701+ depends on GRKERNSEC_PROC
76702+ help
76703+ If you say Y here, non-root users will only be able to view their own
76704+ processes, and restricts them from viewing network-related information,
76705+ and viewing kernel symbol and module information.
76706+
76707+config GRKERNSEC_PROC_USERGROUP
76708+ bool "Allow special group"
76709+ default y if GRKERNSEC_CONFIG_AUTO
76710+ depends on GRKERNSEC_PROC && !GRKERNSEC_PROC_USER
76711+ help
76712+ If you say Y here, you will be able to select a group that will be
76713+ able to view all processes and network-related information. If you've
76714+ enabled GRKERNSEC_HIDESYM, kernel and symbol information may still
76715+ remain hidden. This option is useful if you want to run identd as
76716+ a non-root user. The group you select may also be chosen at boot time
76717+ via "grsec_proc_gid=" on the kernel commandline.
76718+
76719+config GRKERNSEC_PROC_GID
76720+ int "GID for special group"
76721+ depends on GRKERNSEC_PROC_USERGROUP
76722+ default 1001
76723+
76724+config GRKERNSEC_PROC_ADD
76725+ bool "Additional restrictions"
76726+ default y if GRKERNSEC_CONFIG_AUTO
76727+ depends on GRKERNSEC_PROC_USER || GRKERNSEC_PROC_USERGROUP
76728+ help
76729+ If you say Y here, additional restrictions will be placed on
76730+ /proc that keep normal users from viewing device information and
76731+ slabinfo information that could be useful for exploits.
76732+
76733+config GRKERNSEC_LINK
76734+ bool "Linking restrictions"
76735+ default y if GRKERNSEC_CONFIG_AUTO
76736+ help
76737+ If you say Y here, /tmp race exploits will be prevented, since users
76738+ will no longer be able to follow symlinks owned by other users in
76739+ world-writable +t directories (e.g. /tmp), unless the owner of the
76740+ symlink is the owner of the directory. users will also not be
76741+ able to hardlink to files they do not own. If the sysctl option is
76742+ enabled, a sysctl option with name "linking_restrictions" is created.
76743+
76744+config GRKERNSEC_SYMLINKOWN
76745+ bool "Kernel-enforced SymlinksIfOwnerMatch"
76746+ default y if GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_SERVER
76747+ help
76748+ Apache's SymlinksIfOwnerMatch option has an inherent race condition
76749+ that prevents it from being used as a security feature. As Apache
76750+ verifies the symlink by performing a stat() against the target of
76751+ the symlink before it is followed, an attacker can setup a symlink
76752+ to point to a same-owned file, then replace the symlink with one
76753+ that targets another user's file just after Apache "validates" the
76754+ symlink -- a classic TOCTOU race. If you say Y here, a complete,
76755+ race-free replacement for Apache's "SymlinksIfOwnerMatch" option
76756+ will be in place for the group you specify. If the sysctl option
76757+ is enabled, a sysctl option with name "enforce_symlinksifowner" is
76758+ created.
76759+
76760+config GRKERNSEC_SYMLINKOWN_GID
76761+ int "GID for users with kernel-enforced SymlinksIfOwnerMatch"
76762+ depends on GRKERNSEC_SYMLINKOWN
76763+ default 1006
76764+ help
76765+ Setting this GID determines what group kernel-enforced
76766+ SymlinksIfOwnerMatch will be enabled for. If the sysctl option
76767+ is enabled, a sysctl option with name "symlinkown_gid" is created.
76768+
76769+config GRKERNSEC_FIFO
76770+ bool "FIFO restrictions"
76771+ default y if GRKERNSEC_CONFIG_AUTO
76772+ help
76773+ If you say Y here, users will not be able to write to FIFOs they don't
76774+ own in world-writable +t directories (e.g. /tmp), unless the owner of
76775+ the FIFO is the same owner of the directory it's held in. If the sysctl
76776+ option is enabled, a sysctl option with name "fifo_restrictions" is
76777+ created.
76778+
76779+config GRKERNSEC_SYSFS_RESTRICT
76780+ bool "Sysfs/debugfs restriction"
76781+ default y if (GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_SERVER)
76782+ depends on SYSFS
76783+ help
76784+ If you say Y here, sysfs (the pseudo-filesystem mounted at /sys) and
76785+ any filesystem normally mounted under it (e.g. debugfs) will be
76786+ mostly accessible only by root. These filesystems generally provide access
76787+ to hardware and debug information that isn't appropriate for unprivileged
76788+ users of the system. Sysfs and debugfs have also become a large source
76789+ of new vulnerabilities, ranging from infoleaks to local compromise.
76790+ There has been very little oversight with an eye toward security involved
76791+ in adding new exporters of information to these filesystems, so their
76792+ use is discouraged.
76793+ For reasons of compatibility, a few directories have been whitelisted
76794+ for access by non-root users:
76795+ /sys/fs/selinux
76796+ /sys/fs/fuse
76797+ /sys/devices/system/cpu
76798+
76799+config GRKERNSEC_ROFS
76800+ bool "Runtime read-only mount protection"
76801+ depends on SYSCTL
76802+ help
76803+ If you say Y here, a sysctl option with name "romount_protect" will
76804+ be created. By setting this option to 1 at runtime, filesystems
76805+ will be protected in the following ways:
76806+ * No new writable mounts will be allowed
76807+ * Existing read-only mounts won't be able to be remounted read/write
76808+ * Write operations will be denied on all block devices
76809+ This option acts independently of grsec_lock: once it is set to 1,
76810+ it cannot be turned off. Therefore, please be mindful of the resulting
76811+ behavior if this option is enabled in an init script on a read-only
76812+ filesystem.
76813+ Also be aware that as with other root-focused features, GRKERNSEC_KMEM
76814+ and GRKERNSEC_IO should be enabled and module loading disabled via
76815+ config or at runtime.
76816+ This feature is mainly intended for secure embedded systems.
76817+
76818+
76819+config GRKERNSEC_DEVICE_SIDECHANNEL
76820+ bool "Eliminate stat/notify-based device sidechannels"
76821+ default y if GRKERNSEC_CONFIG_AUTO
76822+ help
76823+ If you say Y here, timing analyses on block or character
76824+ devices like /dev/ptmx using stat or inotify/dnotify/fanotify
76825+ will be thwarted for unprivileged users. If a process without
76826+ CAP_MKNOD stats such a device, the last access and last modify times
76827+ will match the device's create time. No access or modify events
76828+ will be triggered through inotify/dnotify/fanotify for such devices.
76829+ This feature will prevent attacks that may at a minimum
76830+ allow an attacker to determine the administrator's password length.
76831+
76832+config GRKERNSEC_CHROOT
76833+ bool "Chroot jail restrictions"
76834+ default y if GRKERNSEC_CONFIG_AUTO
76835+ help
76836+ If you say Y here, you will be able to choose several options that will
76837+ make breaking out of a chrooted jail much more difficult. If you
76838+ encounter no software incompatibilities with the following options, it
76839+ is recommended that you enable each one.
76840+
76841+ Note that the chroot restrictions are not intended to apply to "chroots"
76842+ to directories that are simple bind mounts of the global root filesystem.
76843+ For several other reasons, a user shouldn't expect any significant
76844+ security by performing such a chroot.
76845+
76846+config GRKERNSEC_CHROOT_MOUNT
76847+ bool "Deny mounts"
76848+ default y if GRKERNSEC_CONFIG_AUTO
76849+ depends on GRKERNSEC_CHROOT
76850+ help
76851+ If you say Y here, processes inside a chroot will not be able to
76852+ mount or remount filesystems. If the sysctl option is enabled, a
76853+ sysctl option with name "chroot_deny_mount" is created.
76854+
76855+config GRKERNSEC_CHROOT_DOUBLE
76856+ bool "Deny double-chroots"
76857+ default y if GRKERNSEC_CONFIG_AUTO
76858+ depends on GRKERNSEC_CHROOT
76859+ help
76860+ If you say Y here, processes inside a chroot will not be able to chroot
76861+ again outside the chroot. This is a widely used method of breaking
76862+ out of a chroot jail and should not be allowed. If the sysctl
76863+ option is enabled, a sysctl option with name
76864+ "chroot_deny_chroot" is created.
76865+
76866+config GRKERNSEC_CHROOT_PIVOT
76867+ bool "Deny pivot_root in chroot"
76868+ default y if GRKERNSEC_CONFIG_AUTO
76869+ depends on GRKERNSEC_CHROOT
76870+ help
76871+ If you say Y here, processes inside a chroot will not be able to use
76872+ a function called pivot_root() that was introduced in Linux 2.3.41. It
76873+ works similar to chroot in that it changes the root filesystem. This
76874+ function could be misused in a chrooted process to attempt to break out
76875+ of the chroot, and therefore should not be allowed. If the sysctl
76876+ option is enabled, a sysctl option with name "chroot_deny_pivot" is
76877+ created.
76878+
76879+config GRKERNSEC_CHROOT_CHDIR
76880+ bool "Enforce chdir(\"/\") on all chroots"
76881+ default y if GRKERNSEC_CONFIG_AUTO
76882+ depends on GRKERNSEC_CHROOT
76883+ help
76884+ If you say Y here, the current working directory of all newly-chrooted
76885+ applications will be set to the the root directory of the chroot.
76886+ The man page on chroot(2) states:
76887+ Note that this call does not change the current working
76888+ directory, so that `.' can be outside the tree rooted at
76889+ `/'. In particular, the super-user can escape from a
76890+ `chroot jail' by doing `mkdir foo; chroot foo; cd ..'.
76891+
76892+ It is recommended that you say Y here, since it's not known to break
76893+ any software. If the sysctl option is enabled, a sysctl option with
76894+ name "chroot_enforce_chdir" is created.
76895+
76896+config GRKERNSEC_CHROOT_CHMOD
76897+ bool "Deny (f)chmod +s"
76898+ default y if GRKERNSEC_CONFIG_AUTO
76899+ depends on GRKERNSEC_CHROOT
76900+ help
76901+ If you say Y here, processes inside a chroot will not be able to chmod
76902+ or fchmod files to make them have suid or sgid bits. This protects
76903+ against another published method of breaking a chroot. If the sysctl
76904+ option is enabled, a sysctl option with name "chroot_deny_chmod" is
76905+ created.
76906+
76907+config GRKERNSEC_CHROOT_FCHDIR
76908+ bool "Deny fchdir and fhandle out of chroot"
76909+ default y if GRKERNSEC_CONFIG_AUTO
76910+ depends on GRKERNSEC_CHROOT
76911+ help
76912+ If you say Y here, a well-known method of breaking chroots by fchdir'ing
76913+ to a file descriptor of the chrooting process that points to a directory
76914+ outside the filesystem will be stopped. Additionally, this option prevents
76915+ use of the recently-created syscall for opening files by a guessable "file
76916+ handle" inside a chroot. If the sysctl option is enabled, a sysctl option
76917+ with name "chroot_deny_fchdir" is created.
76918+
76919+config GRKERNSEC_CHROOT_MKNOD
76920+ bool "Deny mknod"
76921+ default y if GRKERNSEC_CONFIG_AUTO
76922+ depends on GRKERNSEC_CHROOT
76923+ help
76924+ If you say Y here, processes inside a chroot will not be allowed to
76925+ mknod. The problem with using mknod inside a chroot is that it
76926+ would allow an attacker to create a device entry that is the same
76927+ as one on the physical root of your system, which could range from
76928+ anything from the console device to a device for your harddrive (which
76929+ they could then use to wipe the drive or steal data). It is recommended
76930+ that you say Y here, unless you run into software incompatibilities.
76931+ If the sysctl option is enabled, a sysctl option with name
76932+ "chroot_deny_mknod" is created.
76933+
76934+config GRKERNSEC_CHROOT_SHMAT
76935+ bool "Deny shmat() out of chroot"
76936+ default y if GRKERNSEC_CONFIG_AUTO
76937+ depends on GRKERNSEC_CHROOT
76938+ help
76939+ If you say Y here, processes inside a chroot will not be able to attach
76940+ to shared memory segments that were created outside of the chroot jail.
76941+ It is recommended that you say Y here. If the sysctl option is enabled,
76942+ a sysctl option with name "chroot_deny_shmat" is created.
76943+
76944+config GRKERNSEC_CHROOT_UNIX
76945+ bool "Deny access to abstract AF_UNIX sockets out of chroot"
76946+ default y if GRKERNSEC_CONFIG_AUTO
76947+ depends on GRKERNSEC_CHROOT
76948+ help
76949+ If you say Y here, processes inside a chroot will not be able to
76950+ connect to abstract (meaning not belonging to a filesystem) Unix
76951+ domain sockets that were bound outside of a chroot. It is recommended
76952+ that you say Y here. If the sysctl option is enabled, a sysctl option
76953+ with name "chroot_deny_unix" is created.
76954+
76955+config GRKERNSEC_CHROOT_FINDTASK
76956+ bool "Protect outside processes"
76957+ default y if GRKERNSEC_CONFIG_AUTO
76958+ depends on GRKERNSEC_CHROOT
76959+ help
76960+ If you say Y here, processes inside a chroot will not be able to
76961+ kill, send signals with fcntl, ptrace, capget, getpgid, setpgid,
76962+ getsid, or view any process outside of the chroot. If the sysctl
76963+ option is enabled, a sysctl option with name "chroot_findtask" is
76964+ created.
76965+
76966+config GRKERNSEC_CHROOT_NICE
76967+ bool "Restrict priority changes"
76968+ default y if GRKERNSEC_CONFIG_AUTO
76969+ depends on GRKERNSEC_CHROOT
76970+ help
76971+ If you say Y here, processes inside a chroot will not be able to raise
76972+ the priority of processes in the chroot, or alter the priority of
76973+ processes outside the chroot. This provides more security than simply
76974+ removing CAP_SYS_NICE from the process' capability set. If the
76975+ sysctl option is enabled, a sysctl option with name "chroot_restrict_nice"
76976+ is created.
76977+
76978+config GRKERNSEC_CHROOT_SYSCTL
76979+ bool "Deny sysctl writes"
76980+ default y if GRKERNSEC_CONFIG_AUTO
76981+ depends on GRKERNSEC_CHROOT
76982+ help
76983+ If you say Y here, an attacker in a chroot will not be able to
76984+ write to sysctl entries, either by sysctl(2) or through a /proc
76985+ interface. It is strongly recommended that you say Y here. If the
76986+ sysctl option is enabled, a sysctl option with name
76987+ "chroot_deny_sysctl" is created.
76988+
76989+config GRKERNSEC_CHROOT_RENAME
76990+ bool "Deny bad renames"
76991+ default y if GRKERNSEC_CONFIG_AUTO
76992+ depends on GRKERNSEC_CHROOT
76993+ help
76994+ If you say Y here, an attacker in a chroot will not be able to
76995+ abuse the ability to create double chroots to break out of the
76996+ chroot by exploiting a race condition between a rename of a directory
76997+ within a chroot against an open of a symlink with relative path
76998+ components. This feature will likewise prevent an accomplice outside
76999+ a chroot from enabling a user inside the chroot to break out and make
77000+ use of their credentials on the global filesystem. Enabling this
77001+ feature is essential to prevent root users from breaking out of a
77002+ chroot. If the sysctl option is enabled, a sysctl option with name
77003+ "chroot_deny_bad_rename" is created.
77004+
77005+config GRKERNSEC_CHROOT_CAPS
77006+ bool "Capability restrictions"
77007+ default y if GRKERNSEC_CONFIG_AUTO
77008+ depends on GRKERNSEC_CHROOT
77009+ help
77010+ If you say Y here, the capabilities on all processes within a
77011+ chroot jail will be lowered to stop module insertion, raw i/o,
77012+ system and net admin tasks, rebooting the system, modifying immutable
77013+ files, modifying IPC owned by another, and changing the system time.
77014+ This is left an option because it can break some apps. Disable this
77015+ if your chrooted apps are having problems performing those kinds of
77016+ tasks. If the sysctl option is enabled, a sysctl option with
77017+ name "chroot_caps" is created.
77018+
77019+config GRKERNSEC_CHROOT_INITRD
77020+ bool "Exempt initrd tasks from restrictions"
77021+ default y if GRKERNSEC_CONFIG_AUTO
77022+ depends on GRKERNSEC_CHROOT && BLK_DEV_INITRD
77023+ help
77024+ If you say Y here, tasks started prior to init will be exempted from
77025+ grsecurity's chroot restrictions. This option is mainly meant to
77026+ resolve Plymouth's performing privileged operations unnecessarily
77027+ in a chroot.
77028+
77029+endmenu
77030+menu "Kernel Auditing"
77031+depends on GRKERNSEC
77032+
77033+config GRKERNSEC_AUDIT_GROUP
77034+ bool "Single group for auditing"
77035+ help
77036+ If you say Y here, the exec and chdir logging features will only operate
77037+ on a group you specify. This option is recommended if you only want to
77038+ watch certain users instead of having a large amount of logs from the
77039+ entire system. If the sysctl option is enabled, a sysctl option with
77040+ name "audit_group" is created.
77041+
77042+config GRKERNSEC_AUDIT_GID
77043+ int "GID for auditing"
77044+ depends on GRKERNSEC_AUDIT_GROUP
77045+ default 1007
77046+
77047+config GRKERNSEC_EXECLOG
77048+ bool "Exec logging"
77049+ help
77050+ If you say Y here, all execve() calls will be logged (since the
77051+ other exec*() calls are frontends to execve(), all execution
77052+ will be logged). Useful for shell-servers that like to keep track
77053+ of their users. If the sysctl option is enabled, a sysctl option with
77054+ name "exec_logging" is created.
77055+ WARNING: This option when enabled will produce a LOT of logs, especially
77056+ on an active system.
77057+
77058+config GRKERNSEC_RESLOG
77059+ bool "Resource logging"
77060+ default y if GRKERNSEC_CONFIG_AUTO
77061+ help
77062+ If you say Y here, all attempts to overstep resource limits will
77063+ be logged with the resource name, the requested size, and the current
77064+ limit. It is highly recommended that you say Y here. If the sysctl
77065+ option is enabled, a sysctl option with name "resource_logging" is
77066+ created. If the RBAC system is enabled, the sysctl value is ignored.
77067+
77068+config GRKERNSEC_CHROOT_EXECLOG
77069+ bool "Log execs within chroot"
77070+ help
77071+ If you say Y here, all executions inside a chroot jail will be logged
77072+ to syslog. This can cause a large amount of logs if certain
77073+ applications (eg. djb's daemontools) are installed on the system, and
77074+ is therefore left as an option. If the sysctl option is enabled, a
77075+ sysctl option with name "chroot_execlog" is created.
77076+
77077+config GRKERNSEC_AUDIT_PTRACE
77078+ bool "Ptrace logging"
77079+ help
77080+ If you say Y here, all attempts to attach to a process via ptrace
77081+ will be logged. If the sysctl option is enabled, a sysctl option
77082+ with name "audit_ptrace" is created.
77083+
77084+config GRKERNSEC_AUDIT_CHDIR
77085+ bool "Chdir logging"
77086+ help
77087+ If you say Y here, all chdir() calls will be logged. If the sysctl
77088+ option is enabled, a sysctl option with name "audit_chdir" is created.
77089+
77090+config GRKERNSEC_AUDIT_MOUNT
77091+ bool "(Un)Mount logging"
77092+ help
77093+ If you say Y here, all mounts and unmounts will be logged. If the
77094+ sysctl option is enabled, a sysctl option with name "audit_mount" is
77095+ created.
77096+
77097+config GRKERNSEC_SIGNAL
77098+ bool "Signal logging"
77099+ default y if GRKERNSEC_CONFIG_AUTO
77100+ help
77101+ If you say Y here, certain important signals will be logged, such as
77102+ SIGSEGV, which will as a result inform you of when a error in a program
77103+ occurred, which in some cases could mean a possible exploit attempt.
77104+ If the sysctl option is enabled, a sysctl option with name
77105+ "signal_logging" is created.
77106+
77107+config GRKERNSEC_FORKFAIL
77108+ bool "Fork failure logging"
77109+ help
77110+ If you say Y here, all failed fork() attempts will be logged.
77111+ This could suggest a fork bomb, or someone attempting to overstep
77112+ their process limit. If the sysctl option is enabled, a sysctl option
77113+ with name "forkfail_logging" is created.
77114+
77115+config GRKERNSEC_TIME
77116+ bool "Time change logging"
77117+ default y if GRKERNSEC_CONFIG_AUTO
77118+ help
77119+ If you say Y here, any changes of the system clock will be logged.
77120+ If the sysctl option is enabled, a sysctl option with name
77121+ "timechange_logging" is created.
77122+
77123+config GRKERNSEC_PROC_IPADDR
77124+ bool "/proc/<pid>/ipaddr support"
77125+ default y if GRKERNSEC_CONFIG_AUTO
77126+ help
77127+ If you say Y here, a new entry will be added to each /proc/<pid>
77128+ directory that contains the IP address of the person using the task.
77129+ The IP is carried across local TCP and AF_UNIX stream sockets.
77130+ This information can be useful for IDS/IPSes to perform remote response
77131+ to a local attack. The entry is readable by only the owner of the
77132+ process (and root if he has CAP_DAC_OVERRIDE, which can be removed via
77133+ the RBAC system), and thus does not create privacy concerns.
77134+
77135+config GRKERNSEC_RWXMAP_LOG
77136+ bool 'Denied RWX mmap/mprotect logging'
77137+ default y if GRKERNSEC_CONFIG_AUTO
77138+ depends on PAX_MPROTECT && !PAX_EMUPLT && !PAX_EMUSIGRT
77139+ help
77140+ If you say Y here, calls to mmap() and mprotect() with explicit
77141+ usage of PROT_WRITE and PROT_EXEC together will be logged when
77142+ denied by the PAX_MPROTECT feature. This feature will also
77143+ log other problematic scenarios that can occur when PAX_MPROTECT
77144+ is enabled on a binary, like textrels and PT_GNU_STACK. If the
77145+ sysctl option is enabled, a sysctl option with name "rwxmap_logging"
77146+ is created.
77147+
77148+endmenu
77149+
77150+menu "Executable Protections"
77151+depends on GRKERNSEC
77152+
77153+config GRKERNSEC_DMESG
77154+ bool "Dmesg(8) restriction"
77155+ default y if GRKERNSEC_CONFIG_AUTO
77156+ help
77157+ If you say Y here, non-root users will not be able to use dmesg(8)
77158+ to view the contents of the kernel's circular log buffer.
77159+ The kernel's log buffer often contains kernel addresses and other
77160+ identifying information useful to an attacker in fingerprinting a
77161+ system for a targeted exploit.
77162+ If the sysctl option is enabled, a sysctl option with name "dmesg" is
77163+ created.
77164+
77165+config GRKERNSEC_HARDEN_PTRACE
77166+ bool "Deter ptrace-based process snooping"
77167+ default y if GRKERNSEC_CONFIG_AUTO
77168+ help
77169+ If you say Y here, TTY sniffers and other malicious monitoring
77170+ programs implemented through ptrace will be defeated. If you
77171+ have been using the RBAC system, this option has already been
77172+ enabled for several years for all users, with the ability to make
77173+ fine-grained exceptions.
77174+
77175+ This option only affects the ability of non-root users to ptrace
77176+ processes that are not a descendent of the ptracing process.
77177+ This means that strace ./binary and gdb ./binary will still work,
77178+ but attaching to arbitrary processes will not. If the sysctl
77179+ option is enabled, a sysctl option with name "harden_ptrace" is
77180+ created.
77181+
77182+config GRKERNSEC_PTRACE_READEXEC
77183+ bool "Require read access to ptrace sensitive binaries"
77184+ default y if GRKERNSEC_CONFIG_AUTO
77185+ help
77186+ If you say Y here, unprivileged users will not be able to ptrace unreadable
77187+ binaries. This option is useful in environments that
77188+ remove the read bits (e.g. file mode 4711) from suid binaries to
77189+ prevent infoleaking of their contents. This option adds
77190+ consistency to the use of that file mode, as the binary could normally
77191+ be read out when run without privileges while ptracing.
77192+
77193+ If the sysctl option is enabled, a sysctl option with name "ptrace_readexec"
77194+ is created.
77195+
77196+config GRKERNSEC_SETXID
77197+ bool "Enforce consistent multithreaded privileges"
77198+ default y if GRKERNSEC_CONFIG_AUTO
77199+ depends on (X86 || SPARC64 || PPC || ARM || MIPS)
77200+ help
77201+ If you say Y here, a change from a root uid to a non-root uid
77202+ in a multithreaded application will cause the resulting uids,
77203+ gids, supplementary groups, and capabilities in that thread
77204+ to be propagated to the other threads of the process. In most
77205+ cases this is unnecessary, as glibc will emulate this behavior
77206+ on behalf of the application. Other libcs do not act in the
77207+ same way, allowing the other threads of the process to continue
77208+ running with root privileges. If the sysctl option is enabled,
77209+ a sysctl option with name "consistent_setxid" is created.
77210+
77211+config GRKERNSEC_HARDEN_IPC
77212+ bool "Disallow access to overly-permissive IPC objects"
77213+ default y if GRKERNSEC_CONFIG_AUTO
77214+ depends on SYSVIPC
77215+ help
77216+ If you say Y here, access to overly-permissive IPC objects (shared
77217+ memory, message queues, and semaphores) will be denied for processes
77218+ given the following criteria beyond normal permission checks:
77219+ 1) If the IPC object is world-accessible and the euid doesn't match
77220+ that of the creator or current uid for the IPC object
77221+ 2) If the IPC object is group-accessible and the egid doesn't
77222+ match that of the creator or current gid for the IPC object
77223+ It's a common error to grant too much permission to these objects,
77224+ with impact ranging from denial of service and information leaking to
77225+ privilege escalation. This feature was developed in response to
77226+ research by Tim Brown:
77227+ http://labs.portcullis.co.uk/whitepapers/memory-squatting-attacks-on-system-v-shared-memory/
77228+ who found hundreds of such insecure usages. Processes with
77229+ CAP_IPC_OWNER are still permitted to access these IPC objects.
77230+ If the sysctl option is enabled, a sysctl option with name
77231+ "harden_ipc" is created.
77232+
77233+config GRKERNSEC_TPE
77234+ bool "Trusted Path Execution (TPE)"
77235+ default y if GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_SERVER
77236+ help
77237+ If you say Y here, you will be able to choose a gid to add to the
77238+ supplementary groups of users you want to mark as "untrusted."
77239+ These users will not be able to execute any files that are not in
77240+ root-owned directories writable only by root. If the sysctl option
77241+ is enabled, a sysctl option with name "tpe" is created.
77242+
77243+config GRKERNSEC_TPE_ALL
77244+ bool "Partially restrict all non-root users"
77245+ depends on GRKERNSEC_TPE
77246+ help
77247+ If you say Y here, all non-root users will be covered under
77248+ a weaker TPE restriction. This is separate from, and in addition to,
77249+ the main TPE options that you have selected elsewhere. Thus, if a
77250+ "trusted" GID is chosen, this restriction applies to even that GID.
77251+ Under this restriction, all non-root users will only be allowed to
77252+ execute files in directories they own that are not group or
77253+ world-writable, or in directories owned by root and writable only by
77254+ root. If the sysctl option is enabled, a sysctl option with name
77255+ "tpe_restrict_all" is created.
77256+
77257+config GRKERNSEC_TPE_INVERT
77258+ bool "Invert GID option"
77259+ depends on GRKERNSEC_TPE
77260+ help
77261+ If you say Y here, the group you specify in the TPE configuration will
77262+ decide what group TPE restrictions will be *disabled* for. This
77263+ option is useful if you want TPE restrictions to be applied to most
77264+ users on the system. If the sysctl option is enabled, a sysctl option
77265+ with name "tpe_invert" is created. Unlike other sysctl options, this
77266+ entry will default to on for backward-compatibility.
77267+
77268+config GRKERNSEC_TPE_GID
77269+ int
77270+ default GRKERNSEC_TPE_UNTRUSTED_GID if (GRKERNSEC_TPE && !GRKERNSEC_TPE_INVERT)
77271+ default GRKERNSEC_TPE_TRUSTED_GID if (GRKERNSEC_TPE && GRKERNSEC_TPE_INVERT)
77272+
77273+config GRKERNSEC_TPE_UNTRUSTED_GID
77274+ int "GID for TPE-untrusted users"
77275+ depends on GRKERNSEC_TPE && !GRKERNSEC_TPE_INVERT
77276+ default 1005
77277+ help
77278+ Setting this GID determines what group TPE restrictions will be
77279+ *enabled* for. If the sysctl option is enabled, a sysctl option
77280+ with name "tpe_gid" is created.
77281+
77282+config GRKERNSEC_TPE_TRUSTED_GID
77283+ int "GID for TPE-trusted users"
77284+ depends on GRKERNSEC_TPE && GRKERNSEC_TPE_INVERT
77285+ default 1005
77286+ help
77287+ Setting this GID determines what group TPE restrictions will be
77288+ *disabled* for. If the sysctl option is enabled, a sysctl option
77289+ with name "tpe_gid" is created.
77290+
77291+endmenu
77292+menu "Network Protections"
77293+depends on GRKERNSEC
77294+
77295+config GRKERNSEC_BLACKHOLE
77296+ bool "TCP/UDP blackhole and LAST_ACK DoS prevention"
77297+ default y if GRKERNSEC_CONFIG_AUTO
77298+ depends on NET
77299+ help
77300+ If you say Y here, neither TCP resets nor ICMP
77301+ destination-unreachable packets will be sent in response to packets
77302+ sent to ports for which no associated listening process exists.
77303+ It will also prevent the sending of ICMP protocol unreachable packets
77304+ in response to packets with unknown protocols.
77305+ This feature supports both IPV4 and IPV6 and exempts the
77306+ loopback interface from blackholing. Enabling this feature
77307+ makes a host more resilient to DoS attacks and reduces network
77308+ visibility against scanners.
77309+
77310+ The blackhole feature as-implemented is equivalent to the FreeBSD
77311+ blackhole feature, as it prevents RST responses to all packets, not
77312+ just SYNs. Under most application behavior this causes no
77313+ problems, but applications (like haproxy) may not close certain
77314+ connections in a way that cleanly terminates them on the remote
77315+ end, leaving the remote host in LAST_ACK state. Because of this
77316+ side-effect and to prevent intentional LAST_ACK DoSes, this
77317+ feature also adds automatic mitigation against such attacks.
77318+ The mitigation drastically reduces the amount of time a socket
77319+ can spend in LAST_ACK state. If you're using haproxy and not
77320+ all servers it connects to have this option enabled, consider
77321+ disabling this feature on the haproxy host.
77322+
77323+ If the sysctl option is enabled, two sysctl options with names
77324+ "ip_blackhole" and "lastack_retries" will be created.
77325+ While "ip_blackhole" takes the standard zero/non-zero on/off
77326+ toggle, "lastack_retries" uses the same kinds of values as
77327+ "tcp_retries1" and "tcp_retries2". The default value of 4
77328+ prevents a socket from lasting more than 45 seconds in LAST_ACK
77329+ state.
77330+
77331+config GRKERNSEC_NO_SIMULT_CONNECT
77332+ bool "Disable TCP Simultaneous Connect"
77333+ default y if GRKERNSEC_CONFIG_AUTO
77334+ depends on NET
77335+ help
77336+ If you say Y here, a feature by Willy Tarreau will be enabled that
77337+ removes a weakness in Linux's strict implementation of TCP that
77338+ allows two clients to connect to each other without either entering
77339+ a listening state. The weakness allows an attacker to easily prevent
77340+ a client from connecting to a known server provided the source port
77341+ for the connection is guessed correctly.
77342+
77343+ As the weakness could be used to prevent an antivirus or IPS from
77344+ fetching updates, or prevent an SSL gateway from fetching a CRL,
77345+ it should be eliminated by enabling this option. Though Linux is
77346+ one of few operating systems supporting simultaneous connect, it
77347+ has no legitimate use in practice and is rarely supported by firewalls.
77348+
77349+config GRKERNSEC_SOCKET
77350+ bool "Socket restrictions"
77351+ depends on NET
77352+ help
77353+ If you say Y here, you will be able to choose from several options.
77354+ If you assign a GID on your system and add it to the supplementary
77355+ groups of users you want to restrict socket access to, this patch
77356+ will perform up to three things, based on the option(s) you choose.
77357+
77358+config GRKERNSEC_SOCKET_ALL
77359+ bool "Deny any sockets to group"
77360+ depends on GRKERNSEC_SOCKET
77361+ help
77362+ If you say Y here, you will be able to choose a GID of whose users will
77363+ be unable to connect to other hosts from your machine or run server
77364+ applications from your machine. If the sysctl option is enabled, a
77365+ sysctl option with name "socket_all" is created.
77366+
77367+config GRKERNSEC_SOCKET_ALL_GID
77368+ int "GID to deny all sockets for"
77369+ depends on GRKERNSEC_SOCKET_ALL
77370+ default 1004
77371+ help
77372+ Here you can choose the GID to disable socket access for. Remember to
77373+ add the users you want socket access disabled for to the GID
77374+ specified here. If the sysctl option is enabled, a sysctl option
77375+ with name "socket_all_gid" is created.
77376+
77377+config GRKERNSEC_SOCKET_CLIENT
77378+ bool "Deny client sockets to group"
77379+ depends on GRKERNSEC_SOCKET
77380+ help
77381+ If you say Y here, you will be able to choose a GID of whose users will
77382+ be unable to connect to other hosts from your machine, but will be
77383+ able to run servers. If this option is enabled, all users in the group
77384+ you specify will have to use passive mode when initiating ftp transfers
77385+ from the shell on your machine. If the sysctl option is enabled, a
77386+ sysctl option with name "socket_client" is created.
77387+
77388+config GRKERNSEC_SOCKET_CLIENT_GID
77389+ int "GID to deny client sockets for"
77390+ depends on GRKERNSEC_SOCKET_CLIENT
77391+ default 1003
77392+ help
77393+ Here you can choose the GID to disable client socket access for.
77394+ Remember to add the users you want client socket access disabled for to
77395+ the GID specified here. If the sysctl option is enabled, a sysctl
77396+ option with name "socket_client_gid" is created.
77397+
77398+config GRKERNSEC_SOCKET_SERVER
77399+ bool "Deny server sockets to group"
77400+ depends on GRKERNSEC_SOCKET
77401+ help
77402+ If you say Y here, you will be able to choose a GID of whose users will
77403+ be unable to run server applications from your machine. If the sysctl
77404+ option is enabled, a sysctl option with name "socket_server" is created.
77405+
77406+config GRKERNSEC_SOCKET_SERVER_GID
77407+ int "GID to deny server sockets for"
77408+ depends on GRKERNSEC_SOCKET_SERVER
77409+ default 1002
77410+ help
77411+ Here you can choose the GID to disable server socket access for.
77412+ Remember to add the users you want server socket access disabled for to
77413+ the GID specified here. If the sysctl option is enabled, a sysctl
77414+ option with name "socket_server_gid" is created.
77415+
77416+endmenu
77417+
77418+menu "Physical Protections"
77419+depends on GRKERNSEC
77420+
77421+config GRKERNSEC_DENYUSB
77422+ bool "Deny new USB connections after toggle"
77423+ default y if GRKERNSEC_CONFIG_AUTO
77424+ depends on SYSCTL && USB_SUPPORT
77425+ help
77426+ If you say Y here, a new sysctl option with name "deny_new_usb"
77427+ will be created. Setting its value to 1 will prevent any new
77428+ USB devices from being recognized by the OS. Any attempted USB
77429+ device insertion will be logged. This option is intended to be
77430+ used against custom USB devices designed to exploit vulnerabilities
77431+ in various USB device drivers.
77432+
77433+ For greatest effectiveness, this sysctl should be set after any
77434+ relevant init scripts. This option is safe to enable in distros
77435+ as each user can choose whether or not to toggle the sysctl.
77436+
77437+config GRKERNSEC_DENYUSB_FORCE
77438+ bool "Reject all USB devices not connected at boot"
77439+ select USB
77440+ depends on GRKERNSEC_DENYUSB
77441+ help
77442+ If you say Y here, a variant of GRKERNSEC_DENYUSB will be enabled
77443+ that doesn't involve a sysctl entry. This option should only be
77444+ enabled if you're sure you want to deny all new USB connections
77445+ at runtime and don't want to modify init scripts. This should not
77446+ be enabled by distros. It forces the core USB code to be built
77447+ into the kernel image so that all devices connected at boot time
77448+ can be recognized and new USB device connections can be prevented
77449+ prior to init running.
77450+
77451+endmenu
77452+
77453+menu "Sysctl Support"
77454+depends on GRKERNSEC && SYSCTL
77455+
77456+config GRKERNSEC_SYSCTL
77457+ bool "Sysctl support"
77458+ default y if GRKERNSEC_CONFIG_AUTO
77459+ help
77460+ If you say Y here, you will be able to change the options that
77461+ grsecurity runs with at bootup, without having to recompile your
77462+ kernel. You can echo values to files in /proc/sys/kernel/grsecurity
77463+ to enable (1) or disable (0) various features. All the sysctl entries
77464+ are mutable until the "grsec_lock" entry is set to a non-zero value.
77465+ All features enabled in the kernel configuration are disabled at boot
77466+ if you do not say Y to the "Turn on features by default" option.
77467+ All options should be set at startup, and the grsec_lock entry should
77468+ be set to a non-zero value after all the options are set.
77469+ *THIS IS EXTREMELY IMPORTANT*
77470+
77471+config GRKERNSEC_SYSCTL_DISTRO
77472+ bool "Extra sysctl support for distro makers (READ HELP)"
77473+ depends on GRKERNSEC_SYSCTL && GRKERNSEC_IO
77474+ help
77475+ If you say Y here, additional sysctl options will be created
77476+ for features that affect processes running as root. Therefore,
77477+ it is critical when using this option that the grsec_lock entry be
77478+ enabled after boot. Only distros with prebuilt kernel packages
77479+ with this option enabled that can ensure grsec_lock is enabled
77480+ after boot should use this option.
77481+ *Failure to set grsec_lock after boot makes all grsec features
77482+ this option covers useless*
77483+
77484+ Currently this option creates the following sysctl entries:
77485+ "Disable Privileged I/O": "disable_priv_io"
77486+
77487+config GRKERNSEC_SYSCTL_ON
77488+ bool "Turn on features by default"
77489+ default y if GRKERNSEC_CONFIG_AUTO
77490+ depends on GRKERNSEC_SYSCTL
77491+ help
77492+ If you say Y here, instead of having all features enabled in the
77493+ kernel configuration disabled at boot time, the features will be
77494+ enabled at boot time. It is recommended you say Y here unless
77495+ there is some reason you would want all sysctl-tunable features to
77496+ be disabled by default. As mentioned elsewhere, it is important
77497+ to enable the grsec_lock entry once you have finished modifying
77498+ the sysctl entries.
77499+
77500+endmenu
77501+menu "Logging Options"
77502+depends on GRKERNSEC
77503+
77504+config GRKERNSEC_FLOODTIME
77505+ int "Seconds in between log messages (minimum)"
77506+ default 10
77507+ help
77508+ This option allows you to enforce the number of seconds between
77509+ grsecurity log messages. The default should be suitable for most
77510+ people, however, if you choose to change it, choose a value small enough
77511+ to allow informative logs to be produced, but large enough to
77512+ prevent flooding.
77513+
77514+ Setting both this value and GRKERNSEC_FLOODBURST to 0 will disable
77515+ any rate limiting on grsecurity log messages.
77516+
77517+config GRKERNSEC_FLOODBURST
77518+ int "Number of messages in a burst (maximum)"
77519+ default 6
77520+ help
77521+ This option allows you to choose the maximum number of messages allowed
77522+ within the flood time interval you chose in a separate option. The
77523+ default should be suitable for most people, however if you find that
77524+ many of your logs are being interpreted as flooding, you may want to
77525+ raise this value.
77526+
77527+ Setting both this value and GRKERNSEC_FLOODTIME to 0 will disable
77528+ any rate limiting on grsecurity log messages.
77529+
77530+endmenu
77531diff --git a/grsecurity/Makefile b/grsecurity/Makefile
77532new file mode 100644
77533index 0000000..30ababb
77534--- /dev/null
77535+++ b/grsecurity/Makefile
77536@@ -0,0 +1,54 @@
77537+# grsecurity – access control and security hardening for Linux
77538+# All code in this directory and various hooks located throughout the Linux kernel are
77539+# Copyright (C) 2001-2014 Bradley Spengler, Open Source Security, Inc.
77540+# http://www.grsecurity.net spender@grsecurity.net
77541+#
77542+# This program is free software; you can redistribute it and/or
77543+# modify it under the terms of the GNU General Public License version 2
77544+# as published by the Free Software Foundation.
77545+#
77546+# This program is distributed in the hope that it will be useful,
77547+# but WITHOUT ANY WARRANTY; without even the implied warranty of
77548+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
77549+# GNU General Public License for more details.
77550+#
77551+# You should have received a copy of the GNU General Public License
77552+# along with this program; if not, write to the Free Software
77553+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
77554+
77555+KBUILD_CFLAGS += -Werror
77556+
77557+obj-y = grsec_chdir.o grsec_chroot.o grsec_exec.o grsec_fifo.o grsec_fork.o \
77558+ grsec_mount.o grsec_sig.o grsec_sysctl.o \
77559+ grsec_time.o grsec_tpe.o grsec_link.o grsec_pax.o grsec_ptrace.o \
77560+ grsec_usb.o grsec_ipc.o grsec_proc.o
77561+
77562+obj-$(CONFIG_GRKERNSEC) += grsec_init.o grsum.o gracl.o gracl_segv.o \
77563+ gracl_cap.o gracl_alloc.o gracl_shm.o grsec_mem.o gracl_fs.o \
77564+ gracl_learn.o grsec_log.o gracl_policy.o
77565+ifdef CONFIG_COMPAT
77566+obj-$(CONFIG_GRKERNSEC) += gracl_compat.o
77567+endif
77568+
77569+obj-$(CONFIG_GRKERNSEC_RESLOG) += gracl_res.o
77570+
77571+ifdef CONFIG_NET
77572+obj-y += grsec_sock.o
77573+obj-$(CONFIG_GRKERNSEC) += gracl_ip.o
77574+endif
77575+
77576+ifndef CONFIG_GRKERNSEC
77577+obj-y += grsec_disabled.o
77578+endif
77579+
77580+ifdef CONFIG_GRKERNSEC_HIDESYM
77581+extra-y := grsec_hidesym.o
77582+$(obj)/grsec_hidesym.o:
77583+ @-chmod -f 500 /boot
77584+ @-chmod -f 500 /lib/modules
77585+ @-chmod -f 500 /lib64/modules
77586+ @-chmod -f 500 /lib32/modules
77587+ @-chmod -f 700 .
77588+ @-chmod -f 700 $(objtree)
77589+ @echo ' grsec: protected kernel image paths'
77590+endif
77591diff --git a/grsecurity/gracl.c b/grsecurity/gracl.c
77592new file mode 100644
77593index 0000000..811af1f
77594--- /dev/null
77595+++ b/grsecurity/gracl.c
77596@@ -0,0 +1,2749 @@
77597+#include <linux/kernel.h>
77598+#include <linux/module.h>
77599+#include <linux/sched.h>
77600+#include <linux/mm.h>
77601+#include <linux/file.h>
77602+#include <linux/fs.h>
77603+#include <linux/namei.h>
77604+#include <linux/mount.h>
77605+#include <linux/tty.h>
77606+#include <linux/proc_fs.h>
77607+#include <linux/lglock.h>
77608+#include <linux/slab.h>
77609+#include <linux/vmalloc.h>
77610+#include <linux/types.h>
77611+#include <linux/sysctl.h>
77612+#include <linux/netdevice.h>
77613+#include <linux/ptrace.h>
77614+#include <linux/gracl.h>
77615+#include <linux/gralloc.h>
77616+#include <linux/security.h>
77617+#include <linux/grinternal.h>
77618+#include <linux/pid_namespace.h>
77619+#include <linux/stop_machine.h>
77620+#include <linux/fdtable.h>
77621+#include <linux/percpu.h>
77622+#include <linux/lglock.h>
77623+#include <linux/hugetlb.h>
77624+#include <linux/posix-timers.h>
77625+#include <linux/prefetch.h>
77626+#if defined(CONFIG_BTRFS_FS) || defined(CONFIG_BTRFS_FS_MODULE)
77627+#include <linux/magic.h>
77628+#include <linux/pagemap.h>
77629+#include "../fs/btrfs/async-thread.h"
77630+#include "../fs/btrfs/ctree.h"
77631+#include "../fs/btrfs/btrfs_inode.h"
77632+#endif
77633+#include "../fs/mount.h"
77634+
77635+#include <asm/uaccess.h>
77636+#include <asm/errno.h>
77637+#include <asm/mman.h>
77638+
77639+#define FOR_EACH_ROLE_START(role) \
77640+ role = running_polstate.role_list; \
77641+ while (role) {
77642+
77643+#define FOR_EACH_ROLE_END(role) \
77644+ role = role->prev; \
77645+ }
77646+
77647+extern struct path gr_real_root;
77648+
77649+static struct gr_policy_state running_polstate;
77650+struct gr_policy_state *polstate = &running_polstate;
77651+extern struct gr_alloc_state *current_alloc_state;
77652+
77653+extern char *gr_shared_page[4];
77654+DEFINE_RWLOCK(gr_inode_lock);
77655+
77656+static unsigned int gr_status __read_only = GR_STATUS_INIT;
77657+
77658+#ifdef CONFIG_NET
77659+extern struct vfsmount *sock_mnt;
77660+#endif
77661+
77662+extern struct vfsmount *pipe_mnt;
77663+extern struct vfsmount *shm_mnt;
77664+
77665+#ifdef CONFIG_HUGETLBFS
77666+extern struct vfsmount *hugetlbfs_vfsmount[HUGE_MAX_HSTATE];
77667+#endif
77668+
77669+extern u16 acl_sp_role_value;
77670+extern struct acl_object_label *fakefs_obj_rw;
77671+extern struct acl_object_label *fakefs_obj_rwx;
77672+
77673+int gr_acl_is_enabled(void)
77674+{
77675+ return (gr_status & GR_READY);
77676+}
77677+
77678+void gr_enable_rbac_system(void)
77679+{
77680+ pax_open_kernel();
77681+ gr_status |= GR_READY;
77682+ pax_close_kernel();
77683+}
77684+
77685+int gr_rbac_disable(void *unused)
77686+{
77687+ pax_open_kernel();
77688+ gr_status &= ~GR_READY;
77689+ pax_close_kernel();
77690+
77691+ return 0;
77692+}
77693+
77694+static inline dev_t __get_dev(const struct dentry *dentry)
77695+{
77696+#if defined(CONFIG_BTRFS_FS) || defined(CONFIG_BTRFS_FS_MODULE)
77697+ if (dentry->d_sb->s_magic == BTRFS_SUPER_MAGIC)
77698+ return BTRFS_I(dentry->d_inode)->root->anon_dev;
77699+ else
77700+#endif
77701+ return dentry->d_sb->s_dev;
77702+}
77703+
77704+static inline u64 __get_ino(const struct dentry *dentry)
77705+{
77706+#if defined(CONFIG_BTRFS_FS) || defined(CONFIG_BTRFS_FS_MODULE)
77707+ if (dentry->d_sb->s_magic == BTRFS_SUPER_MAGIC)
77708+ return btrfs_ino(dentry->d_inode);
77709+ else
77710+#endif
77711+ return dentry->d_inode->i_ino;
77712+}
77713+
77714+dev_t gr_get_dev_from_dentry(struct dentry *dentry)
77715+{
77716+ return __get_dev(dentry);
77717+}
77718+
77719+u64 gr_get_ino_from_dentry(struct dentry *dentry)
77720+{
77721+ return __get_ino(dentry);
77722+}
77723+
77724+static char gr_task_roletype_to_char(struct task_struct *task)
77725+{
77726+ switch (task->role->roletype &
77727+ (GR_ROLE_DEFAULT | GR_ROLE_USER | GR_ROLE_GROUP |
77728+ GR_ROLE_SPECIAL)) {
77729+ case GR_ROLE_DEFAULT:
77730+ return 'D';
77731+ case GR_ROLE_USER:
77732+ return 'U';
77733+ case GR_ROLE_GROUP:
77734+ return 'G';
77735+ case GR_ROLE_SPECIAL:
77736+ return 'S';
77737+ }
77738+
77739+ return 'X';
77740+}
77741+
77742+char gr_roletype_to_char(void)
77743+{
77744+ return gr_task_roletype_to_char(current);
77745+}
77746+
77747+int
77748+gr_acl_tpe_check(void)
77749+{
77750+ if (unlikely(!(gr_status & GR_READY)))
77751+ return 0;
77752+ if (current->role->roletype & GR_ROLE_TPE)
77753+ return 1;
77754+ else
77755+ return 0;
77756+}
77757+
77758+int
77759+gr_handle_rawio(const struct inode *inode)
77760+{
77761+#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS
77762+ if (inode && (S_ISBLK(inode->i_mode) || (S_ISCHR(inode->i_mode) && imajor(inode) == RAW_MAJOR)) &&
77763+ grsec_enable_chroot_caps && proc_is_chrooted(current) &&
77764+ !capable(CAP_SYS_RAWIO))
77765+ return 1;
77766+#endif
77767+ return 0;
77768+}
77769+
77770+int
77771+gr_streq(const char *a, const char *b, const unsigned int lena, const unsigned int lenb)
77772+{
77773+ if (likely(lena != lenb))
77774+ return 0;
77775+
77776+ return !memcmp(a, b, lena);
77777+}
77778+
77779+static int prepend(char **buffer, int *buflen, const char *str, int namelen)
77780+{
77781+ *buflen -= namelen;
77782+ if (*buflen < 0)
77783+ return -ENAMETOOLONG;
77784+ *buffer -= namelen;
77785+ memcpy(*buffer, str, namelen);
77786+ return 0;
77787+}
77788+
77789+static int prepend_name(char **buffer, int *buflen, struct qstr *name)
77790+{
77791+ return prepend(buffer, buflen, name->name, name->len);
77792+}
77793+
77794+static int prepend_path(const struct path *path, struct path *root,
77795+ char **buffer, int *buflen)
77796+{
77797+ struct dentry *dentry = path->dentry;
77798+ struct vfsmount *vfsmnt = path->mnt;
77799+ struct mount *mnt = real_mount(vfsmnt);
77800+ bool slash = false;
77801+ int error = 0;
77802+
77803+ while (dentry != root->dentry || vfsmnt != root->mnt) {
77804+ struct dentry * parent;
77805+
77806+ if (dentry == vfsmnt->mnt_root || IS_ROOT(dentry)) {
77807+ /* Global root? */
77808+ if (!mnt_has_parent(mnt)) {
77809+ goto out;
77810+ }
77811+ dentry = mnt->mnt_mountpoint;
77812+ mnt = mnt->mnt_parent;
77813+ vfsmnt = &mnt->mnt;
77814+ continue;
77815+ }
77816+ parent = dentry->d_parent;
77817+ prefetch(parent);
77818+ spin_lock(&dentry->d_lock);
77819+ error = prepend_name(buffer, buflen, &dentry->d_name);
77820+ spin_unlock(&dentry->d_lock);
77821+ if (!error)
77822+ error = prepend(buffer, buflen, "/", 1);
77823+ if (error)
77824+ break;
77825+
77826+ slash = true;
77827+ dentry = parent;
77828+ }
77829+
77830+out:
77831+ if (!error && !slash)
77832+ error = prepend(buffer, buflen, "/", 1);
77833+
77834+ return error;
77835+}
77836+
77837+/* this must be called with mount_lock and rename_lock held */
77838+
77839+static char *__our_d_path(const struct path *path, struct path *root,
77840+ char *buf, int buflen)
77841+{
77842+ char *res = buf + buflen;
77843+ int error;
77844+
77845+ prepend(&res, &buflen, "\0", 1);
77846+ error = prepend_path(path, root, &res, &buflen);
77847+ if (error)
77848+ return ERR_PTR(error);
77849+
77850+ return res;
77851+}
77852+
77853+static char *
77854+gen_full_path(struct path *path, struct path *root, char *buf, int buflen)
77855+{
77856+ char *retval;
77857+
77858+ retval = __our_d_path(path, root, buf, buflen);
77859+ if (unlikely(IS_ERR(retval)))
77860+ retval = strcpy(buf, "<path too long>");
77861+ else if (unlikely(retval[1] == '/' && retval[2] == '\0'))
77862+ retval[1] = '\0';
77863+
77864+ return retval;
77865+}
77866+
77867+static char *
77868+__d_real_path(const struct dentry *dentry, const struct vfsmount *vfsmnt,
77869+ char *buf, int buflen)
77870+{
77871+ struct path path;
77872+ char *res;
77873+
77874+ path.dentry = (struct dentry *)dentry;
77875+ path.mnt = (struct vfsmount *)vfsmnt;
77876+
77877+ /* we can use gr_real_root.dentry, gr_real_root.mnt, because this is only called
77878+ by the RBAC system */
77879+ res = gen_full_path(&path, &gr_real_root, buf, buflen);
77880+
77881+ return res;
77882+}
77883+
77884+static char *
77885+d_real_path(const struct dentry *dentry, const struct vfsmount *vfsmnt,
77886+ char *buf, int buflen)
77887+{
77888+ char *res;
77889+ struct path path;
77890+ struct path root;
77891+ struct task_struct *reaper = init_pid_ns.child_reaper;
77892+
77893+ path.dentry = (struct dentry *)dentry;
77894+ path.mnt = (struct vfsmount *)vfsmnt;
77895+
77896+ /* we can't use gr_real_root.dentry, gr_real_root.mnt, because they belong only to the RBAC system */
77897+ get_fs_root(reaper->fs, &root);
77898+
77899+ read_seqlock_excl(&mount_lock);
77900+ write_seqlock(&rename_lock);
77901+ res = gen_full_path(&path, &root, buf, buflen);
77902+ write_sequnlock(&rename_lock);
77903+ read_sequnlock_excl(&mount_lock);
77904+
77905+ path_put(&root);
77906+ return res;
77907+}
77908+
77909+char *
77910+gr_to_filename_rbac(const struct dentry *dentry, const struct vfsmount *mnt)
77911+{
77912+ char *ret;
77913+ read_seqlock_excl(&mount_lock);
77914+ write_seqlock(&rename_lock);
77915+ ret = __d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[0],smp_processor_id()),
77916+ PAGE_SIZE);
77917+ write_sequnlock(&rename_lock);
77918+ read_sequnlock_excl(&mount_lock);
77919+ return ret;
77920+}
77921+
77922+static char *
77923+gr_to_proc_filename_rbac(const struct dentry *dentry, const struct vfsmount *mnt)
77924+{
77925+ char *ret;
77926+ char *buf;
77927+ int buflen;
77928+
77929+ read_seqlock_excl(&mount_lock);
77930+ write_seqlock(&rename_lock);
77931+ buf = per_cpu_ptr(gr_shared_page[0], smp_processor_id());
77932+ ret = __d_real_path(dentry, mnt, buf, PAGE_SIZE - 6);
77933+ buflen = (int)(ret - buf);
77934+ if (buflen >= 5)
77935+ prepend(&ret, &buflen, "/proc", 5);
77936+ else
77937+ ret = strcpy(buf, "<path too long>");
77938+ write_sequnlock(&rename_lock);
77939+ read_sequnlock_excl(&mount_lock);
77940+ return ret;
77941+}
77942+
77943+char *
77944+gr_to_filename_nolock(const struct dentry *dentry, const struct vfsmount *mnt)
77945+{
77946+ return __d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[0],smp_processor_id()),
77947+ PAGE_SIZE);
77948+}
77949+
77950+char *
77951+gr_to_filename(const struct dentry *dentry, const struct vfsmount *mnt)
77952+{
77953+ return d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[0], smp_processor_id()),
77954+ PAGE_SIZE);
77955+}
77956+
77957+char *
77958+gr_to_filename1(const struct dentry *dentry, const struct vfsmount *mnt)
77959+{
77960+ return d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[1], smp_processor_id()),
77961+ PAGE_SIZE);
77962+}
77963+
77964+char *
77965+gr_to_filename2(const struct dentry *dentry, const struct vfsmount *mnt)
77966+{
77967+ return d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[2], smp_processor_id()),
77968+ PAGE_SIZE);
77969+}
77970+
77971+char *
77972+gr_to_filename3(const struct dentry *dentry, const struct vfsmount *mnt)
77973+{
77974+ return d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[3], smp_processor_id()),
77975+ PAGE_SIZE);
77976+}
77977+
77978+__u32
77979+to_gr_audit(const __u32 reqmode)
77980+{
77981+ /* masks off auditable permission flags, then shifts them to create
77982+ auditing flags, and adds the special case of append auditing if
77983+ we're requesting write */
77984+ return (((reqmode & ~GR_AUDITS) << 10) | ((reqmode & GR_WRITE) ? GR_AUDIT_APPEND : 0));
77985+}
77986+
77987+struct acl_role_label *
77988+__lookup_acl_role_label(const struct gr_policy_state *state, const struct task_struct *task, const uid_t uid,
77989+ const gid_t gid)
77990+{
77991+ unsigned int index = gr_rhash(uid, GR_ROLE_USER, state->acl_role_set.r_size);
77992+ struct acl_role_label *match;
77993+ struct role_allowed_ip *ipp;
77994+ unsigned int x;
77995+ u32 curr_ip = task->signal->saved_ip;
77996+
77997+ match = state->acl_role_set.r_hash[index];
77998+
77999+ while (match) {
78000+ if ((match->roletype & (GR_ROLE_DOMAIN | GR_ROLE_USER)) == (GR_ROLE_DOMAIN | GR_ROLE_USER)) {
78001+ for (x = 0; x < match->domain_child_num; x++) {
78002+ if (match->domain_children[x] == uid)
78003+ goto found;
78004+ }
78005+ } else if (match->uidgid == uid && match->roletype & GR_ROLE_USER)
78006+ break;
78007+ match = match->next;
78008+ }
78009+found:
78010+ if (match == NULL) {
78011+ try_group:
78012+ index = gr_rhash(gid, GR_ROLE_GROUP, state->acl_role_set.r_size);
78013+ match = state->acl_role_set.r_hash[index];
78014+
78015+ while (match) {
78016+ if ((match->roletype & (GR_ROLE_DOMAIN | GR_ROLE_GROUP)) == (GR_ROLE_DOMAIN | GR_ROLE_GROUP)) {
78017+ for (x = 0; x < match->domain_child_num; x++) {
78018+ if (match->domain_children[x] == gid)
78019+ goto found2;
78020+ }
78021+ } else if (match->uidgid == gid && match->roletype & GR_ROLE_GROUP)
78022+ break;
78023+ match = match->next;
78024+ }
78025+found2:
78026+ if (match == NULL)
78027+ match = state->default_role;
78028+ if (match->allowed_ips == NULL)
78029+ return match;
78030+ else {
78031+ for (ipp = match->allowed_ips; ipp; ipp = ipp->next) {
78032+ if (likely
78033+ ((ntohl(curr_ip) & ipp->netmask) ==
78034+ (ntohl(ipp->addr) & ipp->netmask)))
78035+ return match;
78036+ }
78037+ match = state->default_role;
78038+ }
78039+ } else if (match->allowed_ips == NULL) {
78040+ return match;
78041+ } else {
78042+ for (ipp = match->allowed_ips; ipp; ipp = ipp->next) {
78043+ if (likely
78044+ ((ntohl(curr_ip) & ipp->netmask) ==
78045+ (ntohl(ipp->addr) & ipp->netmask)))
78046+ return match;
78047+ }
78048+ goto try_group;
78049+ }
78050+
78051+ return match;
78052+}
78053+
78054+static struct acl_role_label *
78055+lookup_acl_role_label(const struct task_struct *task, const uid_t uid,
78056+ const gid_t gid)
78057+{
78058+ return __lookup_acl_role_label(&running_polstate, task, uid, gid);
78059+}
78060+
78061+struct acl_subject_label *
78062+lookup_acl_subj_label(const u64 ino, const dev_t dev,
78063+ const struct acl_role_label *role)
78064+{
78065+ unsigned int index = gr_fhash(ino, dev, role->subj_hash_size);
78066+ struct acl_subject_label *match;
78067+
78068+ match = role->subj_hash[index];
78069+
78070+ while (match && (match->inode != ino || match->device != dev ||
78071+ (match->mode & GR_DELETED))) {
78072+ match = match->next;
78073+ }
78074+
78075+ if (match && !(match->mode & GR_DELETED))
78076+ return match;
78077+ else
78078+ return NULL;
78079+}
78080+
78081+struct acl_subject_label *
78082+lookup_acl_subj_label_deleted(const u64 ino, const dev_t dev,
78083+ const struct acl_role_label *role)
78084+{
78085+ unsigned int index = gr_fhash(ino, dev, role->subj_hash_size);
78086+ struct acl_subject_label *match;
78087+
78088+ match = role->subj_hash[index];
78089+
78090+ while (match && (match->inode != ino || match->device != dev ||
78091+ !(match->mode & GR_DELETED))) {
78092+ match = match->next;
78093+ }
78094+
78095+ if (match && (match->mode & GR_DELETED))
78096+ return match;
78097+ else
78098+ return NULL;
78099+}
78100+
78101+static struct acl_object_label *
78102+lookup_acl_obj_label(const u64 ino, const dev_t dev,
78103+ const struct acl_subject_label *subj)
78104+{
78105+ unsigned int index = gr_fhash(ino, dev, subj->obj_hash_size);
78106+ struct acl_object_label *match;
78107+
78108+ match = subj->obj_hash[index];
78109+
78110+ while (match && (match->inode != ino || match->device != dev ||
78111+ (match->mode & GR_DELETED))) {
78112+ match = match->next;
78113+ }
78114+
78115+ if (match && !(match->mode & GR_DELETED))
78116+ return match;
78117+ else
78118+ return NULL;
78119+}
78120+
78121+static struct acl_object_label *
78122+lookup_acl_obj_label_create(const u64 ino, const dev_t dev,
78123+ const struct acl_subject_label *subj)
78124+{
78125+ unsigned int index = gr_fhash(ino, dev, subj->obj_hash_size);
78126+ struct acl_object_label *match;
78127+
78128+ match = subj->obj_hash[index];
78129+
78130+ while (match && (match->inode != ino || match->device != dev ||
78131+ !(match->mode & GR_DELETED))) {
78132+ match = match->next;
78133+ }
78134+
78135+ if (match && (match->mode & GR_DELETED))
78136+ return match;
78137+
78138+ match = subj->obj_hash[index];
78139+
78140+ while (match && (match->inode != ino || match->device != dev ||
78141+ (match->mode & GR_DELETED))) {
78142+ match = match->next;
78143+ }
78144+
78145+ if (match && !(match->mode & GR_DELETED))
78146+ return match;
78147+ else
78148+ return NULL;
78149+}
78150+
78151+struct name_entry *
78152+__lookup_name_entry(const struct gr_policy_state *state, const char *name)
78153+{
78154+ unsigned int len = strlen(name);
78155+ unsigned int key = full_name_hash(name, len);
78156+ unsigned int index = key % state->name_set.n_size;
78157+ struct name_entry *match;
78158+
78159+ match = state->name_set.n_hash[index];
78160+
78161+ while (match && (match->key != key || !gr_streq(match->name, name, match->len, len)))
78162+ match = match->next;
78163+
78164+ return match;
78165+}
78166+
78167+static struct name_entry *
78168+lookup_name_entry(const char *name)
78169+{
78170+ return __lookup_name_entry(&running_polstate, name);
78171+}
78172+
78173+static struct name_entry *
78174+lookup_name_entry_create(const char *name)
78175+{
78176+ unsigned int len = strlen(name);
78177+ unsigned int key = full_name_hash(name, len);
78178+ unsigned int index = key % running_polstate.name_set.n_size;
78179+ struct name_entry *match;
78180+
78181+ match = running_polstate.name_set.n_hash[index];
78182+
78183+ while (match && (match->key != key || !gr_streq(match->name, name, match->len, len) ||
78184+ !match->deleted))
78185+ match = match->next;
78186+
78187+ if (match && match->deleted)
78188+ return match;
78189+
78190+ match = running_polstate.name_set.n_hash[index];
78191+
78192+ while (match && (match->key != key || !gr_streq(match->name, name, match->len, len) ||
78193+ match->deleted))
78194+ match = match->next;
78195+
78196+ if (match && !match->deleted)
78197+ return match;
78198+ else
78199+ return NULL;
78200+}
78201+
78202+static struct inodev_entry *
78203+lookup_inodev_entry(const u64 ino, const dev_t dev)
78204+{
78205+ unsigned int index = gr_fhash(ino, dev, running_polstate.inodev_set.i_size);
78206+ struct inodev_entry *match;
78207+
78208+ match = running_polstate.inodev_set.i_hash[index];
78209+
78210+ while (match && (match->nentry->inode != ino || match->nentry->device != dev))
78211+ match = match->next;
78212+
78213+ return match;
78214+}
78215+
78216+void
78217+__insert_inodev_entry(const struct gr_policy_state *state, struct inodev_entry *entry)
78218+{
78219+ unsigned int index = gr_fhash(entry->nentry->inode, entry->nentry->device,
78220+ state->inodev_set.i_size);
78221+ struct inodev_entry **curr;
78222+
78223+ entry->prev = NULL;
78224+
78225+ curr = &state->inodev_set.i_hash[index];
78226+ if (*curr != NULL)
78227+ (*curr)->prev = entry;
78228+
78229+ entry->next = *curr;
78230+ *curr = entry;
78231+
78232+ return;
78233+}
78234+
78235+static void
78236+insert_inodev_entry(struct inodev_entry *entry)
78237+{
78238+ __insert_inodev_entry(&running_polstate, entry);
78239+}
78240+
78241+void
78242+insert_acl_obj_label(struct acl_object_label *obj,
78243+ struct acl_subject_label *subj)
78244+{
78245+ unsigned int index =
78246+ gr_fhash(obj->inode, obj->device, subj->obj_hash_size);
78247+ struct acl_object_label **curr;
78248+
78249+ obj->prev = NULL;
78250+
78251+ curr = &subj->obj_hash[index];
78252+ if (*curr != NULL)
78253+ (*curr)->prev = obj;
78254+
78255+ obj->next = *curr;
78256+ *curr = obj;
78257+
78258+ return;
78259+}
78260+
78261+void
78262+insert_acl_subj_label(struct acl_subject_label *obj,
78263+ struct acl_role_label *role)
78264+{
78265+ unsigned int index = gr_fhash(obj->inode, obj->device, role->subj_hash_size);
78266+ struct acl_subject_label **curr;
78267+
78268+ obj->prev = NULL;
78269+
78270+ curr = &role->subj_hash[index];
78271+ if (*curr != NULL)
78272+ (*curr)->prev = obj;
78273+
78274+ obj->next = *curr;
78275+ *curr = obj;
78276+
78277+ return;
78278+}
78279+
78280+/* derived from glibc fnmatch() 0: match, 1: no match*/
78281+
78282+static int
78283+glob_match(const char *p, const char *n)
78284+{
78285+ char c;
78286+
78287+ while ((c = *p++) != '\0') {
78288+ switch (c) {
78289+ case '?':
78290+ if (*n == '\0')
78291+ return 1;
78292+ else if (*n == '/')
78293+ return 1;
78294+ break;
78295+ case '\\':
78296+ if (*n != c)
78297+ return 1;
78298+ break;
78299+ case '*':
78300+ for (c = *p++; c == '?' || c == '*'; c = *p++) {
78301+ if (*n == '/')
78302+ return 1;
78303+ else if (c == '?') {
78304+ if (*n == '\0')
78305+ return 1;
78306+ else
78307+ ++n;
78308+ }
78309+ }
78310+ if (c == '\0') {
78311+ return 0;
78312+ } else {
78313+ const char *endp;
78314+
78315+ if ((endp = strchr(n, '/')) == NULL)
78316+ endp = n + strlen(n);
78317+
78318+ if (c == '[') {
78319+ for (--p; n < endp; ++n)
78320+ if (!glob_match(p, n))
78321+ return 0;
78322+ } else if (c == '/') {
78323+ while (*n != '\0' && *n != '/')
78324+ ++n;
78325+ if (*n == '/' && !glob_match(p, n + 1))
78326+ return 0;
78327+ } else {
78328+ for (--p; n < endp; ++n)
78329+ if (*n == c && !glob_match(p, n))
78330+ return 0;
78331+ }
78332+
78333+ return 1;
78334+ }
78335+ case '[':
78336+ {
78337+ int not;
78338+ char cold;
78339+
78340+ if (*n == '\0' || *n == '/')
78341+ return 1;
78342+
78343+ not = (*p == '!' || *p == '^');
78344+ if (not)
78345+ ++p;
78346+
78347+ c = *p++;
78348+ for (;;) {
78349+ unsigned char fn = (unsigned char)*n;
78350+
78351+ if (c == '\0')
78352+ return 1;
78353+ else {
78354+ if (c == fn)
78355+ goto matched;
78356+ cold = c;
78357+ c = *p++;
78358+
78359+ if (c == '-' && *p != ']') {
78360+ unsigned char cend = *p++;
78361+
78362+ if (cend == '\0')
78363+ return 1;
78364+
78365+ if (cold <= fn && fn <= cend)
78366+ goto matched;
78367+
78368+ c = *p++;
78369+ }
78370+ }
78371+
78372+ if (c == ']')
78373+ break;
78374+ }
78375+ if (!not)
78376+ return 1;
78377+ break;
78378+ matched:
78379+ while (c != ']') {
78380+ if (c == '\0')
78381+ return 1;
78382+
78383+ c = *p++;
78384+ }
78385+ if (not)
78386+ return 1;
78387+ }
78388+ break;
78389+ default:
78390+ if (c != *n)
78391+ return 1;
78392+ }
78393+
78394+ ++n;
78395+ }
78396+
78397+ if (*n == '\0')
78398+ return 0;
78399+
78400+ if (*n == '/')
78401+ return 0;
78402+
78403+ return 1;
78404+}
78405+
78406+static struct acl_object_label *
78407+chk_glob_label(struct acl_object_label *globbed,
78408+ const struct dentry *dentry, const struct vfsmount *mnt, char **path)
78409+{
78410+ struct acl_object_label *tmp;
78411+
78412+ if (*path == NULL)
78413+ *path = gr_to_filename_nolock(dentry, mnt);
78414+
78415+ tmp = globbed;
78416+
78417+ while (tmp) {
78418+ if (!glob_match(tmp->filename, *path))
78419+ return tmp;
78420+ tmp = tmp->next;
78421+ }
78422+
78423+ return NULL;
78424+}
78425+
78426+static struct acl_object_label *
78427+__full_lookup(const struct dentry *orig_dentry, const struct vfsmount *orig_mnt,
78428+ const u64 curr_ino, const dev_t curr_dev,
78429+ const struct acl_subject_label *subj, char **path, const int checkglob)
78430+{
78431+ struct acl_subject_label *tmpsubj;
78432+ struct acl_object_label *retval;
78433+ struct acl_object_label *retval2;
78434+
78435+ tmpsubj = (struct acl_subject_label *) subj;
78436+ read_lock(&gr_inode_lock);
78437+ do {
78438+ retval = lookup_acl_obj_label(curr_ino, curr_dev, tmpsubj);
78439+ if (retval) {
78440+ if (checkglob && retval->globbed) {
78441+ retval2 = chk_glob_label(retval->globbed, orig_dentry, orig_mnt, path);
78442+ if (retval2)
78443+ retval = retval2;
78444+ }
78445+ break;
78446+ }
78447+ } while ((tmpsubj = tmpsubj->parent_subject));
78448+ read_unlock(&gr_inode_lock);
78449+
78450+ return retval;
78451+}
78452+
78453+static struct acl_object_label *
78454+full_lookup(const struct dentry *orig_dentry, const struct vfsmount *orig_mnt,
78455+ struct dentry *curr_dentry,
78456+ const struct acl_subject_label *subj, char **path, const int checkglob)
78457+{
78458+ int newglob = checkglob;
78459+ u64 inode;
78460+ dev_t device;
78461+
78462+ /* if we aren't checking a subdirectory of the original path yet, don't do glob checking
78463+ as we don't want a / * rule to match instead of the / object
78464+ don't do this for create lookups that call this function though, since they're looking up
78465+ on the parent and thus need globbing checks on all paths
78466+ */
78467+ if (orig_dentry == curr_dentry && newglob != GR_CREATE_GLOB)
78468+ newglob = GR_NO_GLOB;
78469+
78470+ spin_lock(&curr_dentry->d_lock);
78471+ inode = __get_ino(curr_dentry);
78472+ device = __get_dev(curr_dentry);
78473+ spin_unlock(&curr_dentry->d_lock);
78474+
78475+ return __full_lookup(orig_dentry, orig_mnt, inode, device, subj, path, newglob);
78476+}
78477+
78478+#ifdef CONFIG_HUGETLBFS
78479+static inline bool
78480+is_hugetlbfs_mnt(const struct vfsmount *mnt)
78481+{
78482+ int i;
78483+ for (i = 0; i < HUGE_MAX_HSTATE; i++) {
78484+ if (unlikely(hugetlbfs_vfsmount[i] == mnt))
78485+ return true;
78486+ }
78487+
78488+ return false;
78489+}
78490+#endif
78491+
78492+static struct acl_object_label *
78493+__chk_obj_label(const struct dentry *l_dentry, const struct vfsmount *l_mnt,
78494+ const struct acl_subject_label *subj, char *path, const int checkglob)
78495+{
78496+ struct dentry *dentry = (struct dentry *) l_dentry;
78497+ struct vfsmount *mnt = (struct vfsmount *) l_mnt;
78498+ struct mount *real_mnt = real_mount(mnt);
78499+ struct acl_object_label *retval;
78500+ struct dentry *parent;
78501+
78502+ read_seqlock_excl(&mount_lock);
78503+ write_seqlock(&rename_lock);
78504+
78505+ if (unlikely((mnt == shm_mnt && dentry->d_inode->i_nlink == 0) || mnt == pipe_mnt ||
78506+#ifdef CONFIG_NET
78507+ mnt == sock_mnt ||
78508+#endif
78509+#ifdef CONFIG_HUGETLBFS
78510+ (is_hugetlbfs_mnt(mnt) && dentry->d_inode->i_nlink == 0) ||
78511+#endif
78512+ /* ignore Eric Biederman */
78513+ IS_PRIVATE(l_dentry->d_inode))) {
78514+ retval = (subj->mode & GR_SHMEXEC) ? fakefs_obj_rwx : fakefs_obj_rw;
78515+ goto out;
78516+ }
78517+
78518+ for (;;) {
78519+ if (dentry == gr_real_root.dentry && mnt == gr_real_root.mnt)
78520+ break;
78521+
78522+ if (dentry == mnt->mnt_root || IS_ROOT(dentry)) {
78523+ if (!mnt_has_parent(real_mnt))
78524+ break;
78525+
78526+ retval = full_lookup(l_dentry, l_mnt, dentry, subj, &path, checkglob);
78527+ if (retval != NULL)
78528+ goto out;
78529+
78530+ dentry = real_mnt->mnt_mountpoint;
78531+ real_mnt = real_mnt->mnt_parent;
78532+ mnt = &real_mnt->mnt;
78533+ continue;
78534+ }
78535+
78536+ parent = dentry->d_parent;
78537+ retval = full_lookup(l_dentry, l_mnt, dentry, subj, &path, checkglob);
78538+ if (retval != NULL)
78539+ goto out;
78540+
78541+ dentry = parent;
78542+ }
78543+
78544+ retval = full_lookup(l_dentry, l_mnt, dentry, subj, &path, checkglob);
78545+
78546+ /* gr_real_root is pinned so we don't have to hold a reference */
78547+ if (retval == NULL)
78548+ retval = full_lookup(l_dentry, l_mnt, gr_real_root.dentry, subj, &path, checkglob);
78549+out:
78550+ write_sequnlock(&rename_lock);
78551+ read_sequnlock_excl(&mount_lock);
78552+
78553+ BUG_ON(retval == NULL);
78554+
78555+ return retval;
78556+}
78557+
78558+static struct acl_object_label *
78559+chk_obj_label(const struct dentry *l_dentry, const struct vfsmount *l_mnt,
78560+ const struct acl_subject_label *subj)
78561+{
78562+ char *path = NULL;
78563+ return __chk_obj_label(l_dentry, l_mnt, subj, path, GR_REG_GLOB);
78564+}
78565+
78566+static struct acl_object_label *
78567+chk_obj_label_noglob(const struct dentry *l_dentry, const struct vfsmount *l_mnt,
78568+ const struct acl_subject_label *subj)
78569+{
78570+ char *path = NULL;
78571+ return __chk_obj_label(l_dentry, l_mnt, subj, path, GR_NO_GLOB);
78572+}
78573+
78574+static struct acl_object_label *
78575+chk_obj_create_label(const struct dentry *l_dentry, const struct vfsmount *l_mnt,
78576+ const struct acl_subject_label *subj, char *path)
78577+{
78578+ return __chk_obj_label(l_dentry, l_mnt, subj, path, GR_CREATE_GLOB);
78579+}
78580+
78581+struct acl_subject_label *
78582+chk_subj_label(const struct dentry *l_dentry, const struct vfsmount *l_mnt,
78583+ const struct acl_role_label *role)
78584+{
78585+ struct dentry *dentry = (struct dentry *) l_dentry;
78586+ struct vfsmount *mnt = (struct vfsmount *) l_mnt;
78587+ struct mount *real_mnt = real_mount(mnt);
78588+ struct acl_subject_label *retval;
78589+ struct dentry *parent;
78590+
78591+ read_seqlock_excl(&mount_lock);
78592+ write_seqlock(&rename_lock);
78593+
78594+ for (;;) {
78595+ if (dentry == gr_real_root.dentry && mnt == gr_real_root.mnt)
78596+ break;
78597+ if (dentry == mnt->mnt_root || IS_ROOT(dentry)) {
78598+ if (!mnt_has_parent(real_mnt))
78599+ break;
78600+
78601+ spin_lock(&dentry->d_lock);
78602+ read_lock(&gr_inode_lock);
78603+ retval =
78604+ lookup_acl_subj_label(__get_ino(dentry),
78605+ __get_dev(dentry), role);
78606+ read_unlock(&gr_inode_lock);
78607+ spin_unlock(&dentry->d_lock);
78608+ if (retval != NULL)
78609+ goto out;
78610+
78611+ dentry = real_mnt->mnt_mountpoint;
78612+ real_mnt = real_mnt->mnt_parent;
78613+ mnt = &real_mnt->mnt;
78614+ continue;
78615+ }
78616+
78617+ spin_lock(&dentry->d_lock);
78618+ read_lock(&gr_inode_lock);
78619+ retval = lookup_acl_subj_label(__get_ino(dentry),
78620+ __get_dev(dentry), role);
78621+ read_unlock(&gr_inode_lock);
78622+ parent = dentry->d_parent;
78623+ spin_unlock(&dentry->d_lock);
78624+
78625+ if (retval != NULL)
78626+ goto out;
78627+
78628+ dentry = parent;
78629+ }
78630+
78631+ spin_lock(&dentry->d_lock);
78632+ read_lock(&gr_inode_lock);
78633+ retval = lookup_acl_subj_label(__get_ino(dentry),
78634+ __get_dev(dentry), role);
78635+ read_unlock(&gr_inode_lock);
78636+ spin_unlock(&dentry->d_lock);
78637+
78638+ if (unlikely(retval == NULL)) {
78639+ /* gr_real_root is pinned, we don't need to hold a reference */
78640+ read_lock(&gr_inode_lock);
78641+ retval = lookup_acl_subj_label(__get_ino(gr_real_root.dentry),
78642+ __get_dev(gr_real_root.dentry), role);
78643+ read_unlock(&gr_inode_lock);
78644+ }
78645+out:
78646+ write_sequnlock(&rename_lock);
78647+ read_sequnlock_excl(&mount_lock);
78648+
78649+ BUG_ON(retval == NULL);
78650+
78651+ return retval;
78652+}
78653+
78654+void
78655+assign_special_role(const char *rolename)
78656+{
78657+ struct acl_object_label *obj;
78658+ struct acl_role_label *r;
78659+ struct acl_role_label *assigned = NULL;
78660+ struct task_struct *tsk;
78661+ struct file *filp;
78662+
78663+ FOR_EACH_ROLE_START(r)
78664+ if (!strcmp(rolename, r->rolename) &&
78665+ (r->roletype & GR_ROLE_SPECIAL)) {
78666+ assigned = r;
78667+ break;
78668+ }
78669+ FOR_EACH_ROLE_END(r)
78670+
78671+ if (!assigned)
78672+ return;
78673+
78674+ read_lock(&tasklist_lock);
78675+ read_lock(&grsec_exec_file_lock);
78676+
78677+ tsk = current->real_parent;
78678+ if (tsk == NULL)
78679+ goto out_unlock;
78680+
78681+ filp = tsk->exec_file;
78682+ if (filp == NULL)
78683+ goto out_unlock;
78684+
78685+ tsk->is_writable = 0;
78686+ tsk->inherited = 0;
78687+
78688+ tsk->acl_sp_role = 1;
78689+ tsk->acl_role_id = ++acl_sp_role_value;
78690+ tsk->role = assigned;
78691+ tsk->acl = chk_subj_label(filp->f_path.dentry, filp->f_path.mnt, tsk->role);
78692+
78693+ /* ignore additional mmap checks for processes that are writable
78694+ by the default ACL */
78695+ obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, running_polstate.default_role->root_label);
78696+ if (unlikely(obj->mode & GR_WRITE))
78697+ tsk->is_writable = 1;
78698+ obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, tsk->role->root_label);
78699+ if (unlikely(obj->mode & GR_WRITE))
78700+ tsk->is_writable = 1;
78701+
78702+#ifdef CONFIG_GRKERNSEC_RBAC_DEBUG
78703+ printk(KERN_ALERT "Assigning special role:%s subject:%s to process (%s:%d)\n", tsk->role->rolename,
78704+ tsk->acl->filename, tsk->comm, task_pid_nr(tsk));
78705+#endif
78706+
78707+out_unlock:
78708+ read_unlock(&grsec_exec_file_lock);
78709+ read_unlock(&tasklist_lock);
78710+ return;
78711+}
78712+
78713+
78714+static void
78715+gr_log_learn(const struct dentry *dentry, const struct vfsmount *mnt, const __u32 mode)
78716+{
78717+ struct task_struct *task = current;
78718+ const struct cred *cred = current_cred();
78719+
78720+ security_learn(GR_LEARN_AUDIT_MSG, task->role->rolename, task->role->roletype,
78721+ GR_GLOBAL_UID(cred->uid), GR_GLOBAL_GID(cred->gid), task->exec_file ? gr_to_filename1(task->exec_file->f_path.dentry,
78722+ task->exec_file->f_path.mnt) : task->acl->filename, task->acl->filename,
78723+ 1UL, 1UL, gr_to_filename(dentry, mnt), (unsigned long) mode, &task->signal->saved_ip);
78724+
78725+ return;
78726+}
78727+
78728+static void
78729+gr_log_learn_uid_change(const kuid_t real, const kuid_t effective, const kuid_t fs)
78730+{
78731+ struct task_struct *task = current;
78732+ const struct cred *cred = current_cred();
78733+
78734+ security_learn(GR_ID_LEARN_MSG, task->role->rolename, task->role->roletype,
78735+ GR_GLOBAL_UID(cred->uid), GR_GLOBAL_GID(cred->gid), task->exec_file ? gr_to_filename1(task->exec_file->f_path.dentry,
78736+ task->exec_file->f_path.mnt) : task->acl->filename, task->acl->filename,
78737+ 'u', GR_GLOBAL_UID(real), GR_GLOBAL_UID(effective), GR_GLOBAL_UID(fs), &task->signal->saved_ip);
78738+
78739+ return;
78740+}
78741+
78742+static void
78743+gr_log_learn_gid_change(const kgid_t real, const kgid_t effective, const kgid_t fs)
78744+{
78745+ struct task_struct *task = current;
78746+ const struct cred *cred = current_cred();
78747+
78748+ security_learn(GR_ID_LEARN_MSG, task->role->rolename, task->role->roletype,
78749+ GR_GLOBAL_UID(cred->uid), GR_GLOBAL_GID(cred->gid), task->exec_file ? gr_to_filename1(task->exec_file->f_path.dentry,
78750+ task->exec_file->f_path.mnt) : task->acl->filename, task->acl->filename,
78751+ 'g', GR_GLOBAL_GID(real), GR_GLOBAL_GID(effective), GR_GLOBAL_GID(fs), &task->signal->saved_ip);
78752+
78753+ return;
78754+}
78755+
78756+static void
78757+gr_set_proc_res(struct task_struct *task)
78758+{
78759+ struct acl_subject_label *proc;
78760+ unsigned short i;
78761+
78762+ proc = task->acl;
78763+
78764+ if (proc->mode & (GR_LEARN | GR_INHERITLEARN))
78765+ return;
78766+
78767+ for (i = 0; i < RLIM_NLIMITS; i++) {
78768+ unsigned long rlim_cur, rlim_max;
78769+
78770+ if (!(proc->resmask & (1U << i)))
78771+ continue;
78772+
78773+ rlim_cur = proc->res[i].rlim_cur;
78774+ rlim_max = proc->res[i].rlim_max;
78775+
78776+ if (i == RLIMIT_NOFILE) {
78777+ unsigned long saved_sysctl_nr_open = sysctl_nr_open;
78778+ if (rlim_cur > saved_sysctl_nr_open)
78779+ rlim_cur = saved_sysctl_nr_open;
78780+ if (rlim_max > saved_sysctl_nr_open)
78781+ rlim_max = saved_sysctl_nr_open;
78782+ }
78783+
78784+ task->signal->rlim[i].rlim_cur = rlim_cur;
78785+ task->signal->rlim[i].rlim_max = rlim_max;
78786+
78787+ if (i == RLIMIT_CPU)
78788+ update_rlimit_cpu(task, rlim_cur);
78789+ }
78790+
78791+ return;
78792+}
78793+
78794+/* both of the below must be called with
78795+ rcu_read_lock();
78796+ read_lock(&tasklist_lock);
78797+ read_lock(&grsec_exec_file_lock);
78798+ except in the case of gr_set_role_label() (for __gr_get_subject_for_task)
78799+*/
78800+
78801+struct acl_subject_label *__gr_get_subject_for_task(const struct gr_policy_state *state, struct task_struct *task, const char *filename, int fallback)
78802+{
78803+ char *tmpname;
78804+ struct acl_subject_label *tmpsubj;
78805+ struct file *filp;
78806+ struct name_entry *nmatch;
78807+
78808+ filp = task->exec_file;
78809+ if (filp == NULL)
78810+ return NULL;
78811+
78812+ /* the following is to apply the correct subject
78813+ on binaries running when the RBAC system
78814+ is enabled, when the binaries have been
78815+ replaced or deleted since their execution
78816+ -----
78817+ when the RBAC system starts, the inode/dev
78818+ from exec_file will be one the RBAC system
78819+ is unaware of. It only knows the inode/dev
78820+ of the present file on disk, or the absence
78821+ of it.
78822+ */
78823+
78824+ if (filename)
78825+ nmatch = __lookup_name_entry(state, filename);
78826+ else {
78827+ preempt_disable();
78828+ tmpname = gr_to_filename_rbac(filp->f_path.dentry, filp->f_path.mnt);
78829+
78830+ nmatch = __lookup_name_entry(state, tmpname);
78831+ preempt_enable();
78832+ }
78833+ tmpsubj = NULL;
78834+ if (nmatch) {
78835+ if (nmatch->deleted)
78836+ tmpsubj = lookup_acl_subj_label_deleted(nmatch->inode, nmatch->device, task->role);
78837+ else
78838+ tmpsubj = lookup_acl_subj_label(nmatch->inode, nmatch->device, task->role);
78839+ }
78840+ /* this also works for the reload case -- if we don't match a potentially inherited subject
78841+ then we fall back to a normal lookup based on the binary's ino/dev
78842+ */
78843+ if (tmpsubj == NULL && fallback)
78844+ tmpsubj = chk_subj_label(filp->f_path.dentry, filp->f_path.mnt, task->role);
78845+
78846+ return tmpsubj;
78847+}
78848+
78849+static struct acl_subject_label *gr_get_subject_for_task(struct task_struct *task, const char *filename, int fallback)
78850+{
78851+ return __gr_get_subject_for_task(&running_polstate, task, filename, fallback);
78852+}
78853+
78854+void __gr_apply_subject_to_task(const struct gr_policy_state *state, struct task_struct *task, struct acl_subject_label *subj)
78855+{
78856+ struct acl_object_label *obj;
78857+ struct file *filp;
78858+
78859+ filp = task->exec_file;
78860+
78861+ task->acl = subj;
78862+ task->is_writable = 0;
78863+ /* ignore additional mmap checks for processes that are writable
78864+ by the default ACL */
78865+ obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, state->default_role->root_label);
78866+ if (unlikely(obj->mode & GR_WRITE))
78867+ task->is_writable = 1;
78868+ obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, task->role->root_label);
78869+ if (unlikely(obj->mode & GR_WRITE))
78870+ task->is_writable = 1;
78871+
78872+ gr_set_proc_res(task);
78873+
78874+#ifdef CONFIG_GRKERNSEC_RBAC_DEBUG
78875+ printk(KERN_ALERT "gr_set_acls for (%s:%d): role:%s, subject:%s\n", task->comm, task_pid_nr(task), task->role->rolename, task->acl->filename);
78876+#endif
78877+}
78878+
78879+static void gr_apply_subject_to_task(struct task_struct *task, struct acl_subject_label *subj)
78880+{
78881+ __gr_apply_subject_to_task(&running_polstate, task, subj);
78882+}
78883+
78884+__u32
78885+gr_search_file(const struct dentry * dentry, const __u32 mode,
78886+ const struct vfsmount * mnt)
78887+{
78888+ __u32 retval = mode;
78889+ struct acl_subject_label *curracl;
78890+ struct acl_object_label *currobj;
78891+
78892+ if (unlikely(!(gr_status & GR_READY)))
78893+ return (mode & ~GR_AUDITS);
78894+
78895+ curracl = current->acl;
78896+
78897+ currobj = chk_obj_label(dentry, mnt, curracl);
78898+ retval = currobj->mode & mode;
78899+
78900+ /* if we're opening a specified transfer file for writing
78901+ (e.g. /dev/initctl), then transfer our role to init
78902+ */
78903+ if (unlikely(currobj->mode & GR_INIT_TRANSFER && retval & GR_WRITE &&
78904+ current->role->roletype & GR_ROLE_PERSIST)) {
78905+ struct task_struct *task = init_pid_ns.child_reaper;
78906+
78907+ if (task->role != current->role) {
78908+ struct acl_subject_label *subj;
78909+
78910+ task->acl_sp_role = 0;
78911+ task->acl_role_id = current->acl_role_id;
78912+ task->role = current->role;
78913+ rcu_read_lock();
78914+ read_lock(&grsec_exec_file_lock);
78915+ subj = gr_get_subject_for_task(task, NULL, 1);
78916+ gr_apply_subject_to_task(task, subj);
78917+ read_unlock(&grsec_exec_file_lock);
78918+ rcu_read_unlock();
78919+ gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_INIT_TRANSFER_MSG);
78920+ }
78921+ }
78922+
78923+ if (unlikely
78924+ ((curracl->mode & (GR_LEARN | GR_INHERITLEARN)) && !(mode & GR_NOPTRACE)
78925+ && (retval != (mode & ~(GR_AUDITS | GR_SUPPRESS))))) {
78926+ __u32 new_mode = mode;
78927+
78928+ new_mode &= ~(GR_AUDITS | GR_SUPPRESS);
78929+
78930+ retval = new_mode;
78931+
78932+ if (new_mode & GR_EXEC && curracl->mode & GR_INHERITLEARN)
78933+ new_mode |= GR_INHERIT;
78934+
78935+ if (!(mode & GR_NOLEARN))
78936+ gr_log_learn(dentry, mnt, new_mode);
78937+ }
78938+
78939+ return retval;
78940+}
78941+
78942+struct acl_object_label *gr_get_create_object(const struct dentry *new_dentry,
78943+ const struct dentry *parent,
78944+ const struct vfsmount *mnt)
78945+{
78946+ struct name_entry *match;
78947+ struct acl_object_label *matchpo;
78948+ struct acl_subject_label *curracl;
78949+ char *path;
78950+
78951+ if (unlikely(!(gr_status & GR_READY)))
78952+ return NULL;
78953+
78954+ preempt_disable();
78955+ path = gr_to_filename_rbac(new_dentry, mnt);
78956+ match = lookup_name_entry_create(path);
78957+
78958+ curracl = current->acl;
78959+
78960+ if (match) {
78961+ read_lock(&gr_inode_lock);
78962+ matchpo = lookup_acl_obj_label_create(match->inode, match->device, curracl);
78963+ read_unlock(&gr_inode_lock);
78964+
78965+ if (matchpo) {
78966+ preempt_enable();
78967+ return matchpo;
78968+ }
78969+ }
78970+
78971+ // lookup parent
78972+
78973+ matchpo = chk_obj_create_label(parent, mnt, curracl, path);
78974+
78975+ preempt_enable();
78976+ return matchpo;
78977+}
78978+
78979+__u32
78980+gr_check_create(const struct dentry * new_dentry, const struct dentry * parent,
78981+ const struct vfsmount * mnt, const __u32 mode)
78982+{
78983+ struct acl_object_label *matchpo;
78984+ __u32 retval;
78985+
78986+ if (unlikely(!(gr_status & GR_READY)))
78987+ return (mode & ~GR_AUDITS);
78988+
78989+ matchpo = gr_get_create_object(new_dentry, parent, mnt);
78990+
78991+ retval = matchpo->mode & mode;
78992+
78993+ if ((retval != (mode & ~(GR_AUDITS | GR_SUPPRESS)))
78994+ && (current->acl->mode & (GR_LEARN | GR_INHERITLEARN))) {
78995+ __u32 new_mode = mode;
78996+
78997+ new_mode &= ~(GR_AUDITS | GR_SUPPRESS);
78998+
78999+ gr_log_learn(new_dentry, mnt, new_mode);
79000+ return new_mode;
79001+ }
79002+
79003+ return retval;
79004+}
79005+
79006+__u32
79007+gr_check_link(const struct dentry * new_dentry,
79008+ const struct dentry * parent_dentry,
79009+ const struct vfsmount * parent_mnt,
79010+ const struct dentry * old_dentry, const struct vfsmount * old_mnt)
79011+{
79012+ struct acl_object_label *obj;
79013+ __u32 oldmode, newmode;
79014+ __u32 needmode;
79015+ __u32 checkmodes = GR_FIND | GR_APPEND | GR_WRITE | GR_EXEC | GR_SETID | GR_READ |
79016+ GR_DELETE | GR_INHERIT;
79017+
79018+ if (unlikely(!(gr_status & GR_READY)))
79019+ return (GR_CREATE | GR_LINK);
79020+
79021+ obj = chk_obj_label(old_dentry, old_mnt, current->acl);
79022+ oldmode = obj->mode;
79023+
79024+ obj = gr_get_create_object(new_dentry, parent_dentry, parent_mnt);
79025+ newmode = obj->mode;
79026+
79027+ needmode = newmode & checkmodes;
79028+
79029+ // old name for hardlink must have at least the permissions of the new name
79030+ if ((oldmode & needmode) != needmode)
79031+ goto bad;
79032+
79033+ // if old name had restrictions/auditing, make sure the new name does as well
79034+ needmode = oldmode & (GR_NOPTRACE | GR_PTRACERD | GR_INHERIT | GR_AUDITS);
79035+
79036+ // don't allow hardlinking of suid/sgid/fcapped files without permission
79037+ if (is_privileged_binary(old_dentry))
79038+ needmode |= GR_SETID;
79039+
79040+ if ((newmode & needmode) != needmode)
79041+ goto bad;
79042+
79043+ // enforce minimum permissions
79044+ if ((newmode & (GR_CREATE | GR_LINK)) == (GR_CREATE | GR_LINK))
79045+ return newmode;
79046+bad:
79047+ needmode = oldmode;
79048+ if (is_privileged_binary(old_dentry))
79049+ needmode |= GR_SETID;
79050+
79051+ if (current->acl->mode & (GR_LEARN | GR_INHERITLEARN)) {
79052+ gr_log_learn(old_dentry, old_mnt, needmode | GR_CREATE | GR_LINK);
79053+ return (GR_CREATE | GR_LINK);
79054+ } else if (newmode & GR_SUPPRESS)
79055+ return GR_SUPPRESS;
79056+ else
79057+ return 0;
79058+}
79059+
79060+int
79061+gr_check_hidden_task(const struct task_struct *task)
79062+{
79063+ if (unlikely(!(gr_status & GR_READY)))
79064+ return 0;
79065+
79066+ if (!(task->acl->mode & GR_PROCFIND) && !(current->acl->mode & GR_VIEW))
79067+ return 1;
79068+
79069+ return 0;
79070+}
79071+
79072+int
79073+gr_check_protected_task(const struct task_struct *task)
79074+{
79075+ if (unlikely(!(gr_status & GR_READY) || !task))
79076+ return 0;
79077+
79078+ if ((task->acl->mode & GR_PROTECTED) && !(current->acl->mode & GR_KILL) &&
79079+ task->acl != current->acl)
79080+ return 1;
79081+
79082+ return 0;
79083+}
79084+
79085+int
79086+gr_check_protected_task_fowner(struct pid *pid, enum pid_type type)
79087+{
79088+ struct task_struct *p;
79089+ int ret = 0;
79090+
79091+ if (unlikely(!(gr_status & GR_READY) || !pid))
79092+ return ret;
79093+
79094+ read_lock(&tasklist_lock);
79095+ do_each_pid_task(pid, type, p) {
79096+ if ((p->acl->mode & GR_PROTECTED) && !(current->acl->mode & GR_KILL) &&
79097+ p->acl != current->acl) {
79098+ ret = 1;
79099+ goto out;
79100+ }
79101+ } while_each_pid_task(pid, type, p);
79102+out:
79103+ read_unlock(&tasklist_lock);
79104+
79105+ return ret;
79106+}
79107+
79108+void
79109+gr_copy_label(struct task_struct *tsk)
79110+{
79111+ struct task_struct *p = current;
79112+
79113+ tsk->inherited = p->inherited;
79114+ tsk->acl_sp_role = 0;
79115+ tsk->acl_role_id = p->acl_role_id;
79116+ tsk->acl = p->acl;
79117+ tsk->role = p->role;
79118+ tsk->signal->used_accept = 0;
79119+ tsk->signal->curr_ip = p->signal->curr_ip;
79120+ tsk->signal->saved_ip = p->signal->saved_ip;
79121+ if (p->exec_file)
79122+ get_file(p->exec_file);
79123+ tsk->exec_file = p->exec_file;
79124+ tsk->is_writable = p->is_writable;
79125+ if (unlikely(p->signal->used_accept)) {
79126+ p->signal->curr_ip = 0;
79127+ p->signal->saved_ip = 0;
79128+ }
79129+
79130+ return;
79131+}
79132+
79133+extern int gr_process_kernel_setuid_ban(struct user_struct *user);
79134+
79135+int
79136+gr_check_user_change(kuid_t real, kuid_t effective, kuid_t fs)
79137+{
79138+ unsigned int i;
79139+ __u16 num;
79140+ uid_t *uidlist;
79141+ uid_t curuid;
79142+ int realok = 0;
79143+ int effectiveok = 0;
79144+ int fsok = 0;
79145+ uid_t globalreal, globaleffective, globalfs;
79146+
79147+#if defined(CONFIG_GRKERNSEC_KERN_LOCKOUT)
79148+ struct user_struct *user;
79149+
79150+ if (!uid_valid(real))
79151+ goto skipit;
79152+
79153+ /* find user based on global namespace */
79154+
79155+ globalreal = GR_GLOBAL_UID(real);
79156+
79157+ user = find_user(make_kuid(&init_user_ns, globalreal));
79158+ if (user == NULL)
79159+ goto skipit;
79160+
79161+ if (gr_process_kernel_setuid_ban(user)) {
79162+ /* for find_user */
79163+ free_uid(user);
79164+ return 1;
79165+ }
79166+
79167+ /* for find_user */
79168+ free_uid(user);
79169+
79170+skipit:
79171+#endif
79172+
79173+ if (unlikely(!(gr_status & GR_READY)))
79174+ return 0;
79175+
79176+ if (current->acl->mode & (GR_LEARN | GR_INHERITLEARN))
79177+ gr_log_learn_uid_change(real, effective, fs);
79178+
79179+ num = current->acl->user_trans_num;
79180+ uidlist = current->acl->user_transitions;
79181+
79182+ if (uidlist == NULL)
79183+ return 0;
79184+
79185+ if (!uid_valid(real)) {
79186+ realok = 1;
79187+ globalreal = (uid_t)-1;
79188+ } else {
79189+ globalreal = GR_GLOBAL_UID(real);
79190+ }
79191+ if (!uid_valid(effective)) {
79192+ effectiveok = 1;
79193+ globaleffective = (uid_t)-1;
79194+ } else {
79195+ globaleffective = GR_GLOBAL_UID(effective);
79196+ }
79197+ if (!uid_valid(fs)) {
79198+ fsok = 1;
79199+ globalfs = (uid_t)-1;
79200+ } else {
79201+ globalfs = GR_GLOBAL_UID(fs);
79202+ }
79203+
79204+ if (current->acl->user_trans_type & GR_ID_ALLOW) {
79205+ for (i = 0; i < num; i++) {
79206+ curuid = uidlist[i];
79207+ if (globalreal == curuid)
79208+ realok = 1;
79209+ if (globaleffective == curuid)
79210+ effectiveok = 1;
79211+ if (globalfs == curuid)
79212+ fsok = 1;
79213+ }
79214+ } else if (current->acl->user_trans_type & GR_ID_DENY) {
79215+ for (i = 0; i < num; i++) {
79216+ curuid = uidlist[i];
79217+ if (globalreal == curuid)
79218+ break;
79219+ if (globaleffective == curuid)
79220+ break;
79221+ if (globalfs == curuid)
79222+ break;
79223+ }
79224+ /* not in deny list */
79225+ if (i == num) {
79226+ realok = 1;
79227+ effectiveok = 1;
79228+ fsok = 1;
79229+ }
79230+ }
79231+
79232+ if (realok && effectiveok && fsok)
79233+ return 0;
79234+ else {
79235+ gr_log_int(GR_DONT_AUDIT, GR_USRCHANGE_ACL_MSG, realok ? (effectiveok ? (fsok ? 0 : globalfs) : globaleffective) : globalreal);
79236+ return 1;
79237+ }
79238+}
79239+
79240+int
79241+gr_check_group_change(kgid_t real, kgid_t effective, kgid_t fs)
79242+{
79243+ unsigned int i;
79244+ __u16 num;
79245+ gid_t *gidlist;
79246+ gid_t curgid;
79247+ int realok = 0;
79248+ int effectiveok = 0;
79249+ int fsok = 0;
79250+ gid_t globalreal, globaleffective, globalfs;
79251+
79252+ if (unlikely(!(gr_status & GR_READY)))
79253+ return 0;
79254+
79255+ if (current->acl->mode & (GR_LEARN | GR_INHERITLEARN))
79256+ gr_log_learn_gid_change(real, effective, fs);
79257+
79258+ num = current->acl->group_trans_num;
79259+ gidlist = current->acl->group_transitions;
79260+
79261+ if (gidlist == NULL)
79262+ return 0;
79263+
79264+ if (!gid_valid(real)) {
79265+ realok = 1;
79266+ globalreal = (gid_t)-1;
79267+ } else {
79268+ globalreal = GR_GLOBAL_GID(real);
79269+ }
79270+ if (!gid_valid(effective)) {
79271+ effectiveok = 1;
79272+ globaleffective = (gid_t)-1;
79273+ } else {
79274+ globaleffective = GR_GLOBAL_GID(effective);
79275+ }
79276+ if (!gid_valid(fs)) {
79277+ fsok = 1;
79278+ globalfs = (gid_t)-1;
79279+ } else {
79280+ globalfs = GR_GLOBAL_GID(fs);
79281+ }
79282+
79283+ if (current->acl->group_trans_type & GR_ID_ALLOW) {
79284+ for (i = 0; i < num; i++) {
79285+ curgid = gidlist[i];
79286+ if (globalreal == curgid)
79287+ realok = 1;
79288+ if (globaleffective == curgid)
79289+ effectiveok = 1;
79290+ if (globalfs == curgid)
79291+ fsok = 1;
79292+ }
79293+ } else if (current->acl->group_trans_type & GR_ID_DENY) {
79294+ for (i = 0; i < num; i++) {
79295+ curgid = gidlist[i];
79296+ if (globalreal == curgid)
79297+ break;
79298+ if (globaleffective == curgid)
79299+ break;
79300+ if (globalfs == curgid)
79301+ break;
79302+ }
79303+ /* not in deny list */
79304+ if (i == num) {
79305+ realok = 1;
79306+ effectiveok = 1;
79307+ fsok = 1;
79308+ }
79309+ }
79310+
79311+ if (realok && effectiveok && fsok)
79312+ return 0;
79313+ else {
79314+ gr_log_int(GR_DONT_AUDIT, GR_GRPCHANGE_ACL_MSG, realok ? (effectiveok ? (fsok ? 0 : globalfs) : globaleffective) : globalreal);
79315+ return 1;
79316+ }
79317+}
79318+
79319+extern int gr_acl_is_capable(const int cap);
79320+
79321+void
79322+gr_set_role_label(struct task_struct *task, const kuid_t kuid, const kgid_t kgid)
79323+{
79324+ struct acl_role_label *role = task->role;
79325+ struct acl_role_label *origrole = role;
79326+ struct acl_subject_label *subj = NULL;
79327+ struct acl_object_label *obj;
79328+ struct file *filp;
79329+ uid_t uid;
79330+ gid_t gid;
79331+
79332+ if (unlikely(!(gr_status & GR_READY)))
79333+ return;
79334+
79335+ uid = GR_GLOBAL_UID(kuid);
79336+ gid = GR_GLOBAL_GID(kgid);
79337+
79338+ filp = task->exec_file;
79339+
79340+ /* kernel process, we'll give them the kernel role */
79341+ if (unlikely(!filp)) {
79342+ task->role = running_polstate.kernel_role;
79343+ task->acl = running_polstate.kernel_role->root_label;
79344+ return;
79345+ } else if (!task->role || !(task->role->roletype & GR_ROLE_SPECIAL)) {
79346+ /* save the current ip at time of role lookup so that the proper
79347+ IP will be learned for role_allowed_ip */
79348+ task->signal->saved_ip = task->signal->curr_ip;
79349+ role = lookup_acl_role_label(task, uid, gid);
79350+ }
79351+
79352+ /* don't change the role if we're not a privileged process */
79353+ if (role && task->role != role &&
79354+ (((role->roletype & GR_ROLE_USER) && !gr_acl_is_capable(CAP_SETUID)) ||
79355+ ((role->roletype & GR_ROLE_GROUP) && !gr_acl_is_capable(CAP_SETGID))))
79356+ return;
79357+
79358+ task->role = role;
79359+
79360+ if (task->inherited) {
79361+ /* if we reached our subject through inheritance, then first see
79362+ if there's a subject of the same name in the new role that has
79363+ an object that would result in the same inherited subject
79364+ */
79365+ subj = gr_get_subject_for_task(task, task->acl->filename, 0);
79366+ if (subj) {
79367+ obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, subj);
79368+ if (!(obj->mode & GR_INHERIT))
79369+ subj = NULL;
79370+ }
79371+
79372+ }
79373+ if (subj == NULL) {
79374+ /* otherwise:
79375+ perform subject lookup in possibly new role
79376+ we can use this result below in the case where role == task->role
79377+ */
79378+ subj = chk_subj_label(filp->f_path.dentry, filp->f_path.mnt, role);
79379+ }
79380+
79381+ /* if we changed uid/gid, but result in the same role
79382+ and are using inheritance, don't lose the inherited subject
79383+ if current subject is other than what normal lookup
79384+ would result in, we arrived via inheritance, don't
79385+ lose subject
79386+ */
79387+ if (role != origrole || (!(task->acl->mode & GR_INHERITLEARN) &&
79388+ (subj == task->acl)))
79389+ task->acl = subj;
79390+
79391+ /* leave task->inherited unaffected */
79392+
79393+ task->is_writable = 0;
79394+
79395+ /* ignore additional mmap checks for processes that are writable
79396+ by the default ACL */
79397+ obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, running_polstate.default_role->root_label);
79398+ if (unlikely(obj->mode & GR_WRITE))
79399+ task->is_writable = 1;
79400+ obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, task->role->root_label);
79401+ if (unlikely(obj->mode & GR_WRITE))
79402+ task->is_writable = 1;
79403+
79404+#ifdef CONFIG_GRKERNSEC_RBAC_DEBUG
79405+ printk(KERN_ALERT "Set role label for (%s:%d): role:%s, subject:%s\n", task->comm, task_pid_nr(task), task->role->rolename, task->acl->filename);
79406+#endif
79407+
79408+ gr_set_proc_res(task);
79409+
79410+ return;
79411+}
79412+
79413+int
79414+gr_set_proc_label(const struct dentry *dentry, const struct vfsmount *mnt,
79415+ const int unsafe_flags)
79416+{
79417+ struct task_struct *task = current;
79418+ struct acl_subject_label *newacl;
79419+ struct acl_object_label *obj;
79420+ __u32 retmode;
79421+
79422+ if (unlikely(!(gr_status & GR_READY)))
79423+ return 0;
79424+
79425+ newacl = chk_subj_label(dentry, mnt, task->role);
79426+
79427+ /* special handling for if we did an strace -f -p <pid> from an admin role, where pid then
79428+ did an exec
79429+ */
79430+ rcu_read_lock();
79431+ read_lock(&tasklist_lock);
79432+ if (task->ptrace && task->parent && ((task->parent->role->roletype & GR_ROLE_GOD) ||
79433+ (task->parent->acl->mode & GR_POVERRIDE))) {
79434+ read_unlock(&tasklist_lock);
79435+ rcu_read_unlock();
79436+ goto skip_check;
79437+ }
79438+ read_unlock(&tasklist_lock);
79439+ rcu_read_unlock();
79440+
79441+ if (unsafe_flags && !(task->acl->mode & GR_POVERRIDE) && (task->acl != newacl) &&
79442+ !(task->role->roletype & GR_ROLE_GOD) &&
79443+ !gr_search_file(dentry, GR_PTRACERD, mnt) &&
79444+ !(task->acl->mode & (GR_LEARN | GR_INHERITLEARN))) {
79445+ if (unsafe_flags & LSM_UNSAFE_SHARE)
79446+ gr_log_fs_generic(GR_DONT_AUDIT, GR_UNSAFESHARE_EXEC_ACL_MSG, dentry, mnt);
79447+ else
79448+ gr_log_fs_generic(GR_DONT_AUDIT, GR_PTRACE_EXEC_ACL_MSG, dentry, mnt);
79449+ return -EACCES;
79450+ }
79451+
79452+skip_check:
79453+
79454+ obj = chk_obj_label(dentry, mnt, task->acl);
79455+ retmode = obj->mode & (GR_INHERIT | GR_AUDIT_INHERIT);
79456+
79457+ if (!(task->acl->mode & GR_INHERITLEARN) &&
79458+ ((newacl->mode & GR_LEARN) || !(retmode & GR_INHERIT))) {
79459+ if (obj->nested)
79460+ task->acl = obj->nested;
79461+ else
79462+ task->acl = newacl;
79463+ task->inherited = 0;
79464+ } else {
79465+ task->inherited = 1;
79466+ if (retmode & GR_INHERIT && retmode & GR_AUDIT_INHERIT)
79467+ gr_log_str_fs(GR_DO_AUDIT, GR_INHERIT_ACL_MSG, task->acl->filename, dentry, mnt);
79468+ }
79469+
79470+ task->is_writable = 0;
79471+
79472+ /* ignore additional mmap checks for processes that are writable
79473+ by the default ACL */
79474+ obj = chk_obj_label(dentry, mnt, running_polstate.default_role->root_label);
79475+ if (unlikely(obj->mode & GR_WRITE))
79476+ task->is_writable = 1;
79477+ obj = chk_obj_label(dentry, mnt, task->role->root_label);
79478+ if (unlikely(obj->mode & GR_WRITE))
79479+ task->is_writable = 1;
79480+
79481+ gr_set_proc_res(task);
79482+
79483+#ifdef CONFIG_GRKERNSEC_RBAC_DEBUG
79484+ printk(KERN_ALERT "Set subject label for (%s:%d): role:%s, subject:%s\n", task->comm, task_pid_nr(task), task->role->rolename, task->acl->filename);
79485+#endif
79486+ return 0;
79487+}
79488+
79489+/* always called with valid inodev ptr */
79490+static void
79491+do_handle_delete(struct inodev_entry *inodev, const u64 ino, const dev_t dev)
79492+{
79493+ struct acl_object_label *matchpo;
79494+ struct acl_subject_label *matchps;
79495+ struct acl_subject_label *subj;
79496+ struct acl_role_label *role;
79497+ unsigned int x;
79498+
79499+ FOR_EACH_ROLE_START(role)
79500+ FOR_EACH_SUBJECT_START(role, subj, x)
79501+ if ((matchpo = lookup_acl_obj_label(ino, dev, subj)) != NULL)
79502+ matchpo->mode |= GR_DELETED;
79503+ FOR_EACH_SUBJECT_END(subj,x)
79504+ FOR_EACH_NESTED_SUBJECT_START(role, subj)
79505+ /* nested subjects aren't in the role's subj_hash table */
79506+ if ((matchpo = lookup_acl_obj_label(ino, dev, subj)) != NULL)
79507+ matchpo->mode |= GR_DELETED;
79508+ FOR_EACH_NESTED_SUBJECT_END(subj)
79509+ if ((matchps = lookup_acl_subj_label(ino, dev, role)) != NULL)
79510+ matchps->mode |= GR_DELETED;
79511+ FOR_EACH_ROLE_END(role)
79512+
79513+ inodev->nentry->deleted = 1;
79514+
79515+ return;
79516+}
79517+
79518+void
79519+gr_handle_delete(const u64 ino, const dev_t dev)
79520+{
79521+ struct inodev_entry *inodev;
79522+
79523+ if (unlikely(!(gr_status & GR_READY)))
79524+ return;
79525+
79526+ write_lock(&gr_inode_lock);
79527+ inodev = lookup_inodev_entry(ino, dev);
79528+ if (inodev != NULL)
79529+ do_handle_delete(inodev, ino, dev);
79530+ write_unlock(&gr_inode_lock);
79531+
79532+ return;
79533+}
79534+
79535+static void
79536+update_acl_obj_label(const u64 oldinode, const dev_t olddevice,
79537+ const u64 newinode, const dev_t newdevice,
79538+ struct acl_subject_label *subj)
79539+{
79540+ unsigned int index = gr_fhash(oldinode, olddevice, subj->obj_hash_size);
79541+ struct acl_object_label *match;
79542+
79543+ match = subj->obj_hash[index];
79544+
79545+ while (match && (match->inode != oldinode ||
79546+ match->device != olddevice ||
79547+ !(match->mode & GR_DELETED)))
79548+ match = match->next;
79549+
79550+ if (match && (match->inode == oldinode)
79551+ && (match->device == olddevice)
79552+ && (match->mode & GR_DELETED)) {
79553+ if (match->prev == NULL) {
79554+ subj->obj_hash[index] = match->next;
79555+ if (match->next != NULL)
79556+ match->next->prev = NULL;
79557+ } else {
79558+ match->prev->next = match->next;
79559+ if (match->next != NULL)
79560+ match->next->prev = match->prev;
79561+ }
79562+ match->prev = NULL;
79563+ match->next = NULL;
79564+ match->inode = newinode;
79565+ match->device = newdevice;
79566+ match->mode &= ~GR_DELETED;
79567+
79568+ insert_acl_obj_label(match, subj);
79569+ }
79570+
79571+ return;
79572+}
79573+
79574+static void
79575+update_acl_subj_label(const u64 oldinode, const dev_t olddevice,
79576+ const u64 newinode, const dev_t newdevice,
79577+ struct acl_role_label *role)
79578+{
79579+ unsigned int index = gr_fhash(oldinode, olddevice, role->subj_hash_size);
79580+ struct acl_subject_label *match;
79581+
79582+ match = role->subj_hash[index];
79583+
79584+ while (match && (match->inode != oldinode ||
79585+ match->device != olddevice ||
79586+ !(match->mode & GR_DELETED)))
79587+ match = match->next;
79588+
79589+ if (match && (match->inode == oldinode)
79590+ && (match->device == olddevice)
79591+ && (match->mode & GR_DELETED)) {
79592+ if (match->prev == NULL) {
79593+ role->subj_hash[index] = match->next;
79594+ if (match->next != NULL)
79595+ match->next->prev = NULL;
79596+ } else {
79597+ match->prev->next = match->next;
79598+ if (match->next != NULL)
79599+ match->next->prev = match->prev;
79600+ }
79601+ match->prev = NULL;
79602+ match->next = NULL;
79603+ match->inode = newinode;
79604+ match->device = newdevice;
79605+ match->mode &= ~GR_DELETED;
79606+
79607+ insert_acl_subj_label(match, role);
79608+ }
79609+
79610+ return;
79611+}
79612+
79613+static void
79614+update_inodev_entry(const u64 oldinode, const dev_t olddevice,
79615+ const u64 newinode, const dev_t newdevice)
79616+{
79617+ unsigned int index = gr_fhash(oldinode, olddevice, running_polstate.inodev_set.i_size);
79618+ struct inodev_entry *match;
79619+
79620+ match = running_polstate.inodev_set.i_hash[index];
79621+
79622+ while (match && (match->nentry->inode != oldinode ||
79623+ match->nentry->device != olddevice || !match->nentry->deleted))
79624+ match = match->next;
79625+
79626+ if (match && (match->nentry->inode == oldinode)
79627+ && (match->nentry->device == olddevice) &&
79628+ match->nentry->deleted) {
79629+ if (match->prev == NULL) {
79630+ running_polstate.inodev_set.i_hash[index] = match->next;
79631+ if (match->next != NULL)
79632+ match->next->prev = NULL;
79633+ } else {
79634+ match->prev->next = match->next;
79635+ if (match->next != NULL)
79636+ match->next->prev = match->prev;
79637+ }
79638+ match->prev = NULL;
79639+ match->next = NULL;
79640+ match->nentry->inode = newinode;
79641+ match->nentry->device = newdevice;
79642+ match->nentry->deleted = 0;
79643+
79644+ insert_inodev_entry(match);
79645+ }
79646+
79647+ return;
79648+}
79649+
79650+static void
79651+__do_handle_create(const struct name_entry *matchn, u64 ino, dev_t dev)
79652+{
79653+ struct acl_subject_label *subj;
79654+ struct acl_role_label *role;
79655+ unsigned int x;
79656+
79657+ FOR_EACH_ROLE_START(role)
79658+ update_acl_subj_label(matchn->inode, matchn->device, ino, dev, role);
79659+
79660+ FOR_EACH_NESTED_SUBJECT_START(role, subj)
79661+ if ((subj->inode == ino) && (subj->device == dev)) {
79662+ subj->inode = ino;
79663+ subj->device = dev;
79664+ }
79665+ /* nested subjects aren't in the role's subj_hash table */
79666+ update_acl_obj_label(matchn->inode, matchn->device,
79667+ ino, dev, subj);
79668+ FOR_EACH_NESTED_SUBJECT_END(subj)
79669+ FOR_EACH_SUBJECT_START(role, subj, x)
79670+ update_acl_obj_label(matchn->inode, matchn->device,
79671+ ino, dev, subj);
79672+ FOR_EACH_SUBJECT_END(subj,x)
79673+ FOR_EACH_ROLE_END(role)
79674+
79675+ update_inodev_entry(matchn->inode, matchn->device, ino, dev);
79676+
79677+ return;
79678+}
79679+
79680+static void
79681+do_handle_create(const struct name_entry *matchn, const struct dentry *dentry,
79682+ const struct vfsmount *mnt)
79683+{
79684+ u64 ino = __get_ino(dentry);
79685+ dev_t dev = __get_dev(dentry);
79686+
79687+ __do_handle_create(matchn, ino, dev);
79688+
79689+ return;
79690+}
79691+
79692+void
79693+gr_handle_create(const struct dentry *dentry, const struct vfsmount *mnt)
79694+{
79695+ struct name_entry *matchn;
79696+
79697+ if (unlikely(!(gr_status & GR_READY)))
79698+ return;
79699+
79700+ preempt_disable();
79701+ matchn = lookup_name_entry(gr_to_filename_rbac(dentry, mnt));
79702+
79703+ if (unlikely((unsigned long)matchn)) {
79704+ write_lock(&gr_inode_lock);
79705+ do_handle_create(matchn, dentry, mnt);
79706+ write_unlock(&gr_inode_lock);
79707+ }
79708+ preempt_enable();
79709+
79710+ return;
79711+}
79712+
79713+void
79714+gr_handle_proc_create(const struct dentry *dentry, const struct inode *inode)
79715+{
79716+ struct name_entry *matchn;
79717+
79718+ if (unlikely(!(gr_status & GR_READY)))
79719+ return;
79720+
79721+ preempt_disable();
79722+ matchn = lookup_name_entry(gr_to_proc_filename_rbac(dentry, init_pid_ns.proc_mnt));
79723+
79724+ if (unlikely((unsigned long)matchn)) {
79725+ write_lock(&gr_inode_lock);
79726+ __do_handle_create(matchn, inode->i_ino, inode->i_sb->s_dev);
79727+ write_unlock(&gr_inode_lock);
79728+ }
79729+ preempt_enable();
79730+
79731+ return;
79732+}
79733+
79734+void
79735+gr_handle_rename(struct inode *old_dir, struct inode *new_dir,
79736+ struct dentry *old_dentry,
79737+ struct dentry *new_dentry,
79738+ struct vfsmount *mnt, const __u8 replace, unsigned int flags)
79739+{
79740+ struct name_entry *matchn;
79741+ struct name_entry *matchn2 = NULL;
79742+ struct inodev_entry *inodev;
79743+ struct inode *inode = new_dentry->d_inode;
79744+ u64 old_ino = __get_ino(old_dentry);
79745+ dev_t old_dev = __get_dev(old_dentry);
79746+ unsigned int exchange = flags & RENAME_EXCHANGE;
79747+
79748+ /* vfs_rename swaps the name and parent link for old_dentry and
79749+ new_dentry
79750+ at this point, old_dentry has the new name, parent link, and inode
79751+ for the renamed file
79752+ if a file is being replaced by a rename, new_dentry has the inode
79753+ and name for the replaced file
79754+ */
79755+
79756+ if (unlikely(!(gr_status & GR_READY)))
79757+ return;
79758+
79759+ preempt_disable();
79760+ matchn = lookup_name_entry(gr_to_filename_rbac(old_dentry, mnt));
79761+
79762+ /* exchange cases:
79763+ a filename exists for the source, but not dest
79764+ do a recreate on source
79765+ a filename exists for the dest, but not source
79766+ do a recreate on dest
79767+ a filename exists for both source and dest
79768+ delete source and dest, then create source and dest
79769+ a filename exists for neither source nor dest
79770+ no updates needed
79771+
79772+ the name entry lookups get us the old inode/dev associated with
79773+ each name, so do the deletes first (if possible) so that when
79774+ we do the create, we pick up on the right entries
79775+ */
79776+
79777+ if (exchange)
79778+ matchn2 = lookup_name_entry(gr_to_filename_rbac(new_dentry, mnt));
79779+
79780+ /* we wouldn't have to check d_inode if it weren't for
79781+ NFS silly-renaming
79782+ */
79783+
79784+ write_lock(&gr_inode_lock);
79785+ if (unlikely((replace || exchange) && inode)) {
79786+ u64 new_ino = __get_ino(new_dentry);
79787+ dev_t new_dev = __get_dev(new_dentry);
79788+
79789+ inodev = lookup_inodev_entry(new_ino, new_dev);
79790+ if (inodev != NULL && ((inode->i_nlink <= 1) || S_ISDIR(inode->i_mode)))
79791+ do_handle_delete(inodev, new_ino, new_dev);
79792+ }
79793+
79794+ inodev = lookup_inodev_entry(old_ino, old_dev);
79795+ if (inodev != NULL && ((old_dentry->d_inode->i_nlink <= 1) || S_ISDIR(old_dentry->d_inode->i_mode)))
79796+ do_handle_delete(inodev, old_ino, old_dev);
79797+
79798+ if (unlikely(matchn != NULL))
79799+ do_handle_create(matchn, old_dentry, mnt);
79800+
79801+ if (unlikely(matchn2 != NULL))
79802+ do_handle_create(matchn2, new_dentry, mnt);
79803+
79804+ write_unlock(&gr_inode_lock);
79805+ preempt_enable();
79806+
79807+ return;
79808+}
79809+
79810+#if defined(CONFIG_GRKERNSEC_RESLOG) || !defined(CONFIG_GRKERNSEC_NO_RBAC)
79811+static const unsigned long res_learn_bumps[GR_NLIMITS] = {
79812+ [RLIMIT_CPU] = GR_RLIM_CPU_BUMP,
79813+ [RLIMIT_FSIZE] = GR_RLIM_FSIZE_BUMP,
79814+ [RLIMIT_DATA] = GR_RLIM_DATA_BUMP,
79815+ [RLIMIT_STACK] = GR_RLIM_STACK_BUMP,
79816+ [RLIMIT_CORE] = GR_RLIM_CORE_BUMP,
79817+ [RLIMIT_RSS] = GR_RLIM_RSS_BUMP,
79818+ [RLIMIT_NPROC] = GR_RLIM_NPROC_BUMP,
79819+ [RLIMIT_NOFILE] = GR_RLIM_NOFILE_BUMP,
79820+ [RLIMIT_MEMLOCK] = GR_RLIM_MEMLOCK_BUMP,
79821+ [RLIMIT_AS] = GR_RLIM_AS_BUMP,
79822+ [RLIMIT_LOCKS] = GR_RLIM_LOCKS_BUMP,
79823+ [RLIMIT_SIGPENDING] = GR_RLIM_SIGPENDING_BUMP,
79824+ [RLIMIT_MSGQUEUE] = GR_RLIM_MSGQUEUE_BUMP,
79825+ [RLIMIT_NICE] = GR_RLIM_NICE_BUMP,
79826+ [RLIMIT_RTPRIO] = GR_RLIM_RTPRIO_BUMP,
79827+ [RLIMIT_RTTIME] = GR_RLIM_RTTIME_BUMP
79828+};
79829+
79830+void
79831+gr_learn_resource(const struct task_struct *task,
79832+ const int res, const unsigned long wanted, const int gt)
79833+{
79834+ struct acl_subject_label *acl;
79835+ const struct cred *cred;
79836+
79837+ if (unlikely((gr_status & GR_READY) &&
79838+ task->acl && (task->acl->mode & (GR_LEARN | GR_INHERITLEARN))))
79839+ goto skip_reslog;
79840+
79841+ gr_log_resource(task, res, wanted, gt);
79842+skip_reslog:
79843+
79844+ if (unlikely(!(gr_status & GR_READY) || !wanted || res >= GR_NLIMITS))
79845+ return;
79846+
79847+ acl = task->acl;
79848+
79849+ if (likely(!acl || !(acl->mode & (GR_LEARN | GR_INHERITLEARN)) ||
79850+ !(acl->resmask & (1U << (unsigned short) res))))
79851+ return;
79852+
79853+ if (wanted >= acl->res[res].rlim_cur) {
79854+ unsigned long res_add;
79855+
79856+ res_add = wanted + res_learn_bumps[res];
79857+
79858+ acl->res[res].rlim_cur = res_add;
79859+
79860+ if (wanted > acl->res[res].rlim_max)
79861+ acl->res[res].rlim_max = res_add;
79862+
79863+ /* only log the subject filename, since resource logging is supported for
79864+ single-subject learning only */
79865+ rcu_read_lock();
79866+ cred = __task_cred(task);
79867+ security_learn(GR_LEARN_AUDIT_MSG, task->role->rolename,
79868+ task->role->roletype, GR_GLOBAL_UID(cred->uid), GR_GLOBAL_GID(cred->gid), acl->filename,
79869+ acl->filename, acl->res[res].rlim_cur, acl->res[res].rlim_max,
79870+ "", (unsigned long) res, &task->signal->saved_ip);
79871+ rcu_read_unlock();
79872+ }
79873+
79874+ return;
79875+}
79876+EXPORT_SYMBOL_GPL(gr_learn_resource);
79877+#endif
79878+
79879+#if defined(CONFIG_PAX_HAVE_ACL_FLAGS) && (defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR))
79880+void
79881+pax_set_initial_flags(struct linux_binprm *bprm)
79882+{
79883+ struct task_struct *task = current;
79884+ struct acl_subject_label *proc;
79885+ unsigned long flags;
79886+
79887+ if (unlikely(!(gr_status & GR_READY)))
79888+ return;
79889+
79890+ flags = pax_get_flags(task);
79891+
79892+ proc = task->acl;
79893+
79894+ if (proc->pax_flags & GR_PAX_DISABLE_PAGEEXEC)
79895+ flags &= ~MF_PAX_PAGEEXEC;
79896+ if (proc->pax_flags & GR_PAX_DISABLE_SEGMEXEC)
79897+ flags &= ~MF_PAX_SEGMEXEC;
79898+ if (proc->pax_flags & GR_PAX_DISABLE_RANDMMAP)
79899+ flags &= ~MF_PAX_RANDMMAP;
79900+ if (proc->pax_flags & GR_PAX_DISABLE_EMUTRAMP)
79901+ flags &= ~MF_PAX_EMUTRAMP;
79902+ if (proc->pax_flags & GR_PAX_DISABLE_MPROTECT)
79903+ flags &= ~MF_PAX_MPROTECT;
79904+
79905+ if (proc->pax_flags & GR_PAX_ENABLE_PAGEEXEC)
79906+ flags |= MF_PAX_PAGEEXEC;
79907+ if (proc->pax_flags & GR_PAX_ENABLE_SEGMEXEC)
79908+ flags |= MF_PAX_SEGMEXEC;
79909+ if (proc->pax_flags & GR_PAX_ENABLE_RANDMMAP)
79910+ flags |= MF_PAX_RANDMMAP;
79911+ if (proc->pax_flags & GR_PAX_ENABLE_EMUTRAMP)
79912+ flags |= MF_PAX_EMUTRAMP;
79913+ if (proc->pax_flags & GR_PAX_ENABLE_MPROTECT)
79914+ flags |= MF_PAX_MPROTECT;
79915+
79916+ pax_set_flags(task, flags);
79917+
79918+ return;
79919+}
79920+#endif
79921+
79922+int
79923+gr_handle_proc_ptrace(struct task_struct *task)
79924+{
79925+ struct file *filp;
79926+ struct task_struct *tmp = task;
79927+ struct task_struct *curtemp = current;
79928+ __u32 retmode;
79929+
79930+#ifndef CONFIG_GRKERNSEC_HARDEN_PTRACE
79931+ if (unlikely(!(gr_status & GR_READY)))
79932+ return 0;
79933+#endif
79934+
79935+ read_lock(&tasklist_lock);
79936+ read_lock(&grsec_exec_file_lock);
79937+ filp = task->exec_file;
79938+
79939+ while (task_pid_nr(tmp) > 0) {
79940+ if (tmp == curtemp)
79941+ break;
79942+ tmp = tmp->real_parent;
79943+ }
79944+
79945+ if (!filp || (task_pid_nr(tmp) == 0 && ((grsec_enable_harden_ptrace && gr_is_global_nonroot(current_uid()) && !(gr_status & GR_READY)) ||
79946+ ((gr_status & GR_READY) && !(current->acl->mode & GR_RELAXPTRACE))))) {
79947+ read_unlock(&grsec_exec_file_lock);
79948+ read_unlock(&tasklist_lock);
79949+ return 1;
79950+ }
79951+
79952+#ifdef CONFIG_GRKERNSEC_HARDEN_PTRACE
79953+ if (!(gr_status & GR_READY)) {
79954+ read_unlock(&grsec_exec_file_lock);
79955+ read_unlock(&tasklist_lock);
79956+ return 0;
79957+ }
79958+#endif
79959+
79960+ retmode = gr_search_file(filp->f_path.dentry, GR_NOPTRACE, filp->f_path.mnt);
79961+ read_unlock(&grsec_exec_file_lock);
79962+ read_unlock(&tasklist_lock);
79963+
79964+ if (retmode & GR_NOPTRACE)
79965+ return 1;
79966+
79967+ if (!(current->acl->mode & GR_POVERRIDE) && !(current->role->roletype & GR_ROLE_GOD)
79968+ && (current->acl != task->acl || (current->acl != current->role->root_label
79969+ && task_pid_nr(current) != task_pid_nr(task))))
79970+ return 1;
79971+
79972+ return 0;
79973+}
79974+
79975+void task_grsec_rbac(struct seq_file *m, struct task_struct *p)
79976+{
79977+ if (unlikely(!(gr_status & GR_READY)))
79978+ return;
79979+
79980+ if (!(current->role->roletype & GR_ROLE_GOD))
79981+ return;
79982+
79983+ seq_printf(m, "RBAC:\t%.64s:%c:%.950s\n",
79984+ p->role->rolename, gr_task_roletype_to_char(p),
79985+ p->acl->filename);
79986+}
79987+
79988+int
79989+gr_handle_ptrace(struct task_struct *task, const long request)
79990+{
79991+ struct task_struct *tmp = task;
79992+ struct task_struct *curtemp = current;
79993+ __u32 retmode;
79994+
79995+#ifndef CONFIG_GRKERNSEC_HARDEN_PTRACE
79996+ if (unlikely(!(gr_status & GR_READY)))
79997+ return 0;
79998+#endif
79999+ if (request == PTRACE_ATTACH || request == PTRACE_SEIZE) {
80000+ read_lock(&tasklist_lock);
80001+ while (task_pid_nr(tmp) > 0) {
80002+ if (tmp == curtemp)
80003+ break;
80004+ tmp = tmp->real_parent;
80005+ }
80006+
80007+ if (task_pid_nr(tmp) == 0 && ((grsec_enable_harden_ptrace && gr_is_global_nonroot(current_uid()) && !(gr_status & GR_READY)) ||
80008+ ((gr_status & GR_READY) && !(current->acl->mode & GR_RELAXPTRACE)))) {
80009+ read_unlock(&tasklist_lock);
80010+ gr_log_ptrace(GR_DONT_AUDIT, GR_PTRACE_ACL_MSG, task);
80011+ return 1;
80012+ }
80013+ read_unlock(&tasklist_lock);
80014+ }
80015+
80016+#ifdef CONFIG_GRKERNSEC_HARDEN_PTRACE
80017+ if (!(gr_status & GR_READY))
80018+ return 0;
80019+#endif
80020+
80021+ read_lock(&grsec_exec_file_lock);
80022+ if (unlikely(!task->exec_file)) {
80023+ read_unlock(&grsec_exec_file_lock);
80024+ return 0;
80025+ }
80026+
80027+ retmode = gr_search_file(task->exec_file->f_path.dentry, GR_PTRACERD | GR_NOPTRACE, task->exec_file->f_path.mnt);
80028+ read_unlock(&grsec_exec_file_lock);
80029+
80030+ if (retmode & GR_NOPTRACE) {
80031+ gr_log_ptrace(GR_DONT_AUDIT, GR_PTRACE_ACL_MSG, task);
80032+ return 1;
80033+ }
80034+
80035+ if (retmode & GR_PTRACERD) {
80036+ switch (request) {
80037+ case PTRACE_SEIZE:
80038+ case PTRACE_POKETEXT:
80039+ case PTRACE_POKEDATA:
80040+ case PTRACE_POKEUSR:
80041+#if !defined(CONFIG_PPC32) && !defined(CONFIG_PPC64) && !defined(CONFIG_PARISC) && !defined(CONFIG_ALPHA) && !defined(CONFIG_IA64)
80042+ case PTRACE_SETREGS:
80043+ case PTRACE_SETFPREGS:
80044+#endif
80045+#ifdef CONFIG_X86
80046+ case PTRACE_SETFPXREGS:
80047+#endif
80048+#ifdef CONFIG_ALTIVEC
80049+ case PTRACE_SETVRREGS:
80050+#endif
80051+ return 1;
80052+ default:
80053+ return 0;
80054+ }
80055+ } else if (!(current->acl->mode & GR_POVERRIDE) &&
80056+ !(current->role->roletype & GR_ROLE_GOD) &&
80057+ (current->acl != task->acl)) {
80058+ gr_log_ptrace(GR_DONT_AUDIT, GR_PTRACE_ACL_MSG, task);
80059+ return 1;
80060+ }
80061+
80062+ return 0;
80063+}
80064+
80065+static int is_writable_mmap(const struct file *filp)
80066+{
80067+ struct task_struct *task = current;
80068+ struct acl_object_label *obj, *obj2;
80069+
80070+ if (gr_status & GR_READY && !(task->acl->mode & GR_OVERRIDE) &&
80071+ !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))) {
80072+ obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, running_polstate.default_role->root_label);
80073+ obj2 = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt,
80074+ task->role->root_label);
80075+ if (unlikely((obj->mode & GR_WRITE) || (obj2->mode & GR_WRITE))) {
80076+ gr_log_fs_generic(GR_DONT_AUDIT, GR_WRITLIB_ACL_MSG, filp->f_path.dentry, filp->f_path.mnt);
80077+ return 1;
80078+ }
80079+ }
80080+ return 0;
80081+}
80082+
80083+int
80084+gr_acl_handle_mmap(const struct file *file, const unsigned long prot)
80085+{
80086+ __u32 mode;
80087+
80088+ if (unlikely(!file || !(prot & PROT_EXEC)))
80089+ return 1;
80090+
80091+ if (is_writable_mmap(file))
80092+ return 0;
80093+
80094+ mode =
80095+ gr_search_file(file->f_path.dentry,
80096+ GR_EXEC | GR_AUDIT_EXEC | GR_SUPPRESS,
80097+ file->f_path.mnt);
80098+
80099+ if (!gr_tpe_allow(file))
80100+ return 0;
80101+
80102+ if (unlikely(!(mode & GR_EXEC) && !(mode & GR_SUPPRESS))) {
80103+ gr_log_fs_rbac_generic(GR_DONT_AUDIT, GR_MMAP_ACL_MSG, file->f_path.dentry, file->f_path.mnt);
80104+ return 0;
80105+ } else if (unlikely(!(mode & GR_EXEC))) {
80106+ return 0;
80107+ } else if (unlikely(mode & GR_EXEC && mode & GR_AUDIT_EXEC)) {
80108+ gr_log_fs_rbac_generic(GR_DO_AUDIT, GR_MMAP_ACL_MSG, file->f_path.dentry, file->f_path.mnt);
80109+ return 1;
80110+ }
80111+
80112+ return 1;
80113+}
80114+
80115+int
80116+gr_acl_handle_mprotect(const struct file *file, const unsigned long prot)
80117+{
80118+ __u32 mode;
80119+
80120+ if (unlikely(!file || !(prot & PROT_EXEC)))
80121+ return 1;
80122+
80123+ if (is_writable_mmap(file))
80124+ return 0;
80125+
80126+ mode =
80127+ gr_search_file(file->f_path.dentry,
80128+ GR_EXEC | GR_AUDIT_EXEC | GR_SUPPRESS,
80129+ file->f_path.mnt);
80130+
80131+ if (!gr_tpe_allow(file))
80132+ return 0;
80133+
80134+ if (unlikely(!(mode & GR_EXEC) && !(mode & GR_SUPPRESS))) {
80135+ gr_log_fs_rbac_generic(GR_DONT_AUDIT, GR_MPROTECT_ACL_MSG, file->f_path.dentry, file->f_path.mnt);
80136+ return 0;
80137+ } else if (unlikely(!(mode & GR_EXEC))) {
80138+ return 0;
80139+ } else if (unlikely(mode & GR_EXEC && mode & GR_AUDIT_EXEC)) {
80140+ gr_log_fs_rbac_generic(GR_DO_AUDIT, GR_MPROTECT_ACL_MSG, file->f_path.dentry, file->f_path.mnt);
80141+ return 1;
80142+ }
80143+
80144+ return 1;
80145+}
80146+
80147+void
80148+gr_acl_handle_psacct(struct task_struct *task, const long code)
80149+{
80150+ unsigned long runtime, cputime;
80151+ cputime_t utime, stime;
80152+ unsigned int wday, cday;
80153+ __u8 whr, chr;
80154+ __u8 wmin, cmin;
80155+ __u8 wsec, csec;
80156+ struct timespec curtime, starttime;
80157+
80158+ if (unlikely(!(gr_status & GR_READY) || !task->acl ||
80159+ !(task->acl->mode & GR_PROCACCT)))
80160+ return;
80161+
80162+ curtime = ns_to_timespec(ktime_get_ns());
80163+ starttime = ns_to_timespec(task->start_time);
80164+ runtime = curtime.tv_sec - starttime.tv_sec;
80165+ wday = runtime / (60 * 60 * 24);
80166+ runtime -= wday * (60 * 60 * 24);
80167+ whr = runtime / (60 * 60);
80168+ runtime -= whr * (60 * 60);
80169+ wmin = runtime / 60;
80170+ runtime -= wmin * 60;
80171+ wsec = runtime;
80172+
80173+ task_cputime(task, &utime, &stime);
80174+ cputime = cputime_to_secs(utime + stime);
80175+ cday = cputime / (60 * 60 * 24);
80176+ cputime -= cday * (60 * 60 * 24);
80177+ chr = cputime / (60 * 60);
80178+ cputime -= chr * (60 * 60);
80179+ cmin = cputime / 60;
80180+ cputime -= cmin * 60;
80181+ csec = cputime;
80182+
80183+ gr_log_procacct(GR_DO_AUDIT, GR_ACL_PROCACCT_MSG, task, wday, whr, wmin, wsec, cday, chr, cmin, csec, code);
80184+
80185+ return;
80186+}
80187+
80188+#ifdef CONFIG_TASKSTATS
80189+int gr_is_taskstats_denied(int pid)
80190+{
80191+ struct task_struct *task;
80192+#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
80193+ const struct cred *cred;
80194+#endif
80195+ int ret = 0;
80196+
80197+ /* restrict taskstats viewing to un-chrooted root users
80198+ who have the 'view' subject flag if the RBAC system is enabled
80199+ */
80200+
80201+ rcu_read_lock();
80202+ read_lock(&tasklist_lock);
80203+ task = find_task_by_vpid(pid);
80204+ if (task) {
80205+#ifdef CONFIG_GRKERNSEC_CHROOT
80206+ if (proc_is_chrooted(task))
80207+ ret = -EACCES;
80208+#endif
80209+#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
80210+ cred = __task_cred(task);
80211+#ifdef CONFIG_GRKERNSEC_PROC_USER
80212+ if (gr_is_global_nonroot(cred->uid))
80213+ ret = -EACCES;
80214+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
80215+ if (gr_is_global_nonroot(cred->uid) && !groups_search(cred->group_info, grsec_proc_gid))
80216+ ret = -EACCES;
80217+#endif
80218+#endif
80219+ if (gr_status & GR_READY) {
80220+ if (!(task->acl->mode & GR_VIEW))
80221+ ret = -EACCES;
80222+ }
80223+ } else
80224+ ret = -ENOENT;
80225+
80226+ read_unlock(&tasklist_lock);
80227+ rcu_read_unlock();
80228+
80229+ return ret;
80230+}
80231+#endif
80232+
80233+/* AUXV entries are filled via a descendant of search_binary_handler
80234+ after we've already applied the subject for the target
80235+*/
80236+int gr_acl_enable_at_secure(void)
80237+{
80238+ if (unlikely(!(gr_status & GR_READY)))
80239+ return 0;
80240+
80241+ if (current->acl->mode & GR_ATSECURE)
80242+ return 1;
80243+
80244+ return 0;
80245+}
80246+
80247+int gr_acl_handle_filldir(const struct file *file, const char *name, const unsigned int namelen, const u64 ino)
80248+{
80249+ struct task_struct *task = current;
80250+ struct dentry *dentry = file->f_path.dentry;
80251+ struct vfsmount *mnt = file->f_path.mnt;
80252+ struct acl_object_label *obj, *tmp;
80253+ struct acl_subject_label *subj;
80254+ unsigned int bufsize;
80255+ int is_not_root;
80256+ char *path;
80257+ dev_t dev = __get_dev(dentry);
80258+
80259+ if (unlikely(!(gr_status & GR_READY)))
80260+ return 1;
80261+
80262+ if (task->acl->mode & (GR_LEARN | GR_INHERITLEARN))
80263+ return 1;
80264+
80265+ /* ignore Eric Biederman */
80266+ if (IS_PRIVATE(dentry->d_inode))
80267+ return 1;
80268+
80269+ subj = task->acl;
80270+ read_lock(&gr_inode_lock);
80271+ do {
80272+ obj = lookup_acl_obj_label(ino, dev, subj);
80273+ if (obj != NULL) {
80274+ read_unlock(&gr_inode_lock);
80275+ return (obj->mode & GR_FIND) ? 1 : 0;
80276+ }
80277+ } while ((subj = subj->parent_subject));
80278+ read_unlock(&gr_inode_lock);
80279+
80280+ /* this is purely an optimization since we're looking for an object
80281+ for the directory we're doing a readdir on
80282+ if it's possible for any globbed object to match the entry we're
80283+ filling into the directory, then the object we find here will be
80284+ an anchor point with attached globbed objects
80285+ */
80286+ obj = chk_obj_label_noglob(dentry, mnt, task->acl);
80287+ if (obj->globbed == NULL)
80288+ return (obj->mode & GR_FIND) ? 1 : 0;
80289+
80290+ is_not_root = ((obj->filename[0] == '/') &&
80291+ (obj->filename[1] == '\0')) ? 0 : 1;
80292+ bufsize = PAGE_SIZE - namelen - is_not_root;
80293+
80294+ /* check bufsize > PAGE_SIZE || bufsize == 0 */
80295+ if (unlikely((bufsize - 1) > (PAGE_SIZE - 1)))
80296+ return 1;
80297+
80298+ preempt_disable();
80299+ path = d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[0], smp_processor_id()),
80300+ bufsize);
80301+
80302+ bufsize = strlen(path);
80303+
80304+ /* if base is "/", don't append an additional slash */
80305+ if (is_not_root)
80306+ *(path + bufsize) = '/';
80307+ memcpy(path + bufsize + is_not_root, name, namelen);
80308+ *(path + bufsize + namelen + is_not_root) = '\0';
80309+
80310+ tmp = obj->globbed;
80311+ while (tmp) {
80312+ if (!glob_match(tmp->filename, path)) {
80313+ preempt_enable();
80314+ return (tmp->mode & GR_FIND) ? 1 : 0;
80315+ }
80316+ tmp = tmp->next;
80317+ }
80318+ preempt_enable();
80319+ return (obj->mode & GR_FIND) ? 1 : 0;
80320+}
80321+
80322+void gr_put_exec_file(struct task_struct *task)
80323+{
80324+ struct file *filp;
80325+
80326+ write_lock(&grsec_exec_file_lock);
80327+ filp = task->exec_file;
80328+ task->exec_file = NULL;
80329+ write_unlock(&grsec_exec_file_lock);
80330+
80331+ if (filp)
80332+ fput(filp);
80333+
80334+ return;
80335+}
80336+
80337+
80338+#ifdef CONFIG_NETFILTER_XT_MATCH_GRADM_MODULE
80339+EXPORT_SYMBOL_GPL(gr_acl_is_enabled);
80340+#endif
80341+#ifdef CONFIG_SECURITY
80342+EXPORT_SYMBOL_GPL(gr_check_user_change);
80343+EXPORT_SYMBOL_GPL(gr_check_group_change);
80344+#endif
80345+
80346diff --git a/grsecurity/gracl_alloc.c b/grsecurity/gracl_alloc.c
80347new file mode 100644
80348index 0000000..9adc75c
80349--- /dev/null
80350+++ b/grsecurity/gracl_alloc.c
80351@@ -0,0 +1,105 @@
80352+#include <linux/kernel.h>
80353+#include <linux/mm.h>
80354+#include <linux/slab.h>
80355+#include <linux/vmalloc.h>
80356+#include <linux/gracl.h>
80357+#include <linux/grsecurity.h>
80358+
80359+static struct gr_alloc_state __current_alloc_state = { 1, 1, NULL };
80360+struct gr_alloc_state *current_alloc_state = &__current_alloc_state;
80361+
80362+static int
80363+alloc_pop(void)
80364+{
80365+ if (current_alloc_state->alloc_stack_next == 1)
80366+ return 0;
80367+
80368+ kfree(current_alloc_state->alloc_stack[current_alloc_state->alloc_stack_next - 2]);
80369+
80370+ current_alloc_state->alloc_stack_next--;
80371+
80372+ return 1;
80373+}
80374+
80375+static int
80376+alloc_push(void *buf)
80377+{
80378+ if (current_alloc_state->alloc_stack_next >= current_alloc_state->alloc_stack_size)
80379+ return 1;
80380+
80381+ current_alloc_state->alloc_stack[current_alloc_state->alloc_stack_next - 1] = buf;
80382+
80383+ current_alloc_state->alloc_stack_next++;
80384+
80385+ return 0;
80386+}
80387+
80388+void *
80389+acl_alloc(unsigned long len)
80390+{
80391+ void *ret = NULL;
80392+
80393+ if (!len || len > PAGE_SIZE)
80394+ goto out;
80395+
80396+ ret = kmalloc(len, GFP_KERNEL);
80397+
80398+ if (ret) {
80399+ if (alloc_push(ret)) {
80400+ kfree(ret);
80401+ ret = NULL;
80402+ }
80403+ }
80404+
80405+out:
80406+ return ret;
80407+}
80408+
80409+void *
80410+acl_alloc_num(unsigned long num, unsigned long len)
80411+{
80412+ if (!len || (num > (PAGE_SIZE / len)))
80413+ return NULL;
80414+
80415+ return acl_alloc(num * len);
80416+}
80417+
80418+void
80419+acl_free_all(void)
80420+{
80421+ if (!current_alloc_state->alloc_stack)
80422+ return;
80423+
80424+ while (alloc_pop()) ;
80425+
80426+ if (current_alloc_state->alloc_stack) {
80427+ if ((current_alloc_state->alloc_stack_size * sizeof (void *)) <= PAGE_SIZE)
80428+ kfree(current_alloc_state->alloc_stack);
80429+ else
80430+ vfree(current_alloc_state->alloc_stack);
80431+ }
80432+
80433+ current_alloc_state->alloc_stack = NULL;
80434+ current_alloc_state->alloc_stack_size = 1;
80435+ current_alloc_state->alloc_stack_next = 1;
80436+
80437+ return;
80438+}
80439+
80440+int
80441+acl_alloc_stack_init(unsigned long size)
80442+{
80443+ if ((size * sizeof (void *)) <= PAGE_SIZE)
80444+ current_alloc_state->alloc_stack =
80445+ (void **) kmalloc(size * sizeof (void *), GFP_KERNEL);
80446+ else
80447+ current_alloc_state->alloc_stack = (void **) vmalloc(size * sizeof (void *));
80448+
80449+ current_alloc_state->alloc_stack_size = size;
80450+ current_alloc_state->alloc_stack_next = 1;
80451+
80452+ if (!current_alloc_state->alloc_stack)
80453+ return 0;
80454+ else
80455+ return 1;
80456+}
80457diff --git a/grsecurity/gracl_cap.c b/grsecurity/gracl_cap.c
80458new file mode 100644
80459index 0000000..1a94c11
80460--- /dev/null
80461+++ b/grsecurity/gracl_cap.c
80462@@ -0,0 +1,127 @@
80463+#include <linux/kernel.h>
80464+#include <linux/module.h>
80465+#include <linux/sched.h>
80466+#include <linux/gracl.h>
80467+#include <linux/grsecurity.h>
80468+#include <linux/grinternal.h>
80469+
80470+extern const char *captab_log[];
80471+extern int captab_log_entries;
80472+
80473+int gr_learn_cap(const struct task_struct *task, const struct cred *cred, const int cap)
80474+{
80475+ struct acl_subject_label *curracl;
80476+
80477+ if (!gr_acl_is_enabled())
80478+ return 1;
80479+
80480+ curracl = task->acl;
80481+
80482+ if (curracl->mode & (GR_LEARN | GR_INHERITLEARN)) {
80483+ security_learn(GR_LEARN_AUDIT_MSG, task->role->rolename,
80484+ task->role->roletype, GR_GLOBAL_UID(cred->uid),
80485+ GR_GLOBAL_GID(cred->gid), task->exec_file ?
80486+ gr_to_filename(task->exec_file->f_path.dentry,
80487+ task->exec_file->f_path.mnt) : curracl->filename,
80488+ curracl->filename, 0UL,
80489+ 0UL, "", (unsigned long) cap, &task->signal->saved_ip);
80490+ return 1;
80491+ }
80492+
80493+ return 0;
80494+}
80495+
80496+int gr_task_acl_is_capable(const struct task_struct *task, const struct cred *cred, const int cap)
80497+{
80498+ struct acl_subject_label *curracl;
80499+ kernel_cap_t cap_drop = __cap_empty_set, cap_mask = __cap_empty_set;
80500+ kernel_cap_t cap_audit = __cap_empty_set;
80501+
80502+ if (!gr_acl_is_enabled())
80503+ return 1;
80504+
80505+ curracl = task->acl;
80506+
80507+ cap_drop = curracl->cap_lower;
80508+ cap_mask = curracl->cap_mask;
80509+ cap_audit = curracl->cap_invert_audit;
80510+
80511+ while ((curracl = curracl->parent_subject)) {
80512+ /* if the cap isn't specified in the current computed mask but is specified in the
80513+ current level subject, and is lowered in the current level subject, then add
80514+ it to the set of dropped capabilities
80515+ otherwise, add the current level subject's mask to the current computed mask
80516+ */
80517+ if (!cap_raised(cap_mask, cap) && cap_raised(curracl->cap_mask, cap)) {
80518+ cap_raise(cap_mask, cap);
80519+ if (cap_raised(curracl->cap_lower, cap))
80520+ cap_raise(cap_drop, cap);
80521+ if (cap_raised(curracl->cap_invert_audit, cap))
80522+ cap_raise(cap_audit, cap);
80523+ }
80524+ }
80525+
80526+ if (!cap_raised(cap_drop, cap)) {
80527+ if (cap_raised(cap_audit, cap))
80528+ gr_log_cap(GR_DO_AUDIT, GR_CAP_ACL_MSG2, task, captab_log[cap]);
80529+ return 1;
80530+ }
80531+
80532+ /* only learn the capability use if the process has the capability in the
80533+ general case, the two uses in sys.c of gr_learn_cap are an exception
80534+ to this rule to ensure any role transition involves what the full-learned
80535+ policy believes in a privileged process
80536+ */
80537+ if (cap_raised(cred->cap_effective, cap) && gr_learn_cap(task, cred, cap))
80538+ return 1;
80539+
80540+ if ((cap >= 0) && (cap < captab_log_entries) && cap_raised(cred->cap_effective, cap) && !cap_raised(cap_audit, cap))
80541+ gr_log_cap(GR_DONT_AUDIT, GR_CAP_ACL_MSG, task, captab_log[cap]);
80542+
80543+ return 0;
80544+}
80545+
80546+int
80547+gr_acl_is_capable(const int cap)
80548+{
80549+ return gr_task_acl_is_capable(current, current_cred(), cap);
80550+}
80551+
80552+int gr_task_acl_is_capable_nolog(const struct task_struct *task, const int cap)
80553+{
80554+ struct acl_subject_label *curracl;
80555+ kernel_cap_t cap_drop = __cap_empty_set, cap_mask = __cap_empty_set;
80556+
80557+ if (!gr_acl_is_enabled())
80558+ return 1;
80559+
80560+ curracl = task->acl;
80561+
80562+ cap_drop = curracl->cap_lower;
80563+ cap_mask = curracl->cap_mask;
80564+
80565+ while ((curracl = curracl->parent_subject)) {
80566+ /* if the cap isn't specified in the current computed mask but is specified in the
80567+ current level subject, and is lowered in the current level subject, then add
80568+ it to the set of dropped capabilities
80569+ otherwise, add the current level subject's mask to the current computed mask
80570+ */
80571+ if (!cap_raised(cap_mask, cap) && cap_raised(curracl->cap_mask, cap)) {
80572+ cap_raise(cap_mask, cap);
80573+ if (cap_raised(curracl->cap_lower, cap))
80574+ cap_raise(cap_drop, cap);
80575+ }
80576+ }
80577+
80578+ if (!cap_raised(cap_drop, cap))
80579+ return 1;
80580+
80581+ return 0;
80582+}
80583+
80584+int
80585+gr_acl_is_capable_nolog(const int cap)
80586+{
80587+ return gr_task_acl_is_capable_nolog(current, cap);
80588+}
80589+
80590diff --git a/grsecurity/gracl_compat.c b/grsecurity/gracl_compat.c
80591new file mode 100644
80592index 0000000..a43dd06
80593--- /dev/null
80594+++ b/grsecurity/gracl_compat.c
80595@@ -0,0 +1,269 @@
80596+#include <linux/kernel.h>
80597+#include <linux/gracl.h>
80598+#include <linux/compat.h>
80599+#include <linux/gracl_compat.h>
80600+
80601+#include <asm/uaccess.h>
80602+
80603+int copy_gr_arg_wrapper_compat(const char *buf, struct gr_arg_wrapper *uwrap)
80604+{
80605+ struct gr_arg_wrapper_compat uwrapcompat;
80606+
80607+ if (copy_from_user(&uwrapcompat, buf, sizeof(uwrapcompat)))
80608+ return -EFAULT;
80609+
80610+ if ((uwrapcompat.version != GRSECURITY_VERSION) ||
80611+ (uwrapcompat.size != sizeof(struct gr_arg_compat)))
80612+ return -EINVAL;
80613+
80614+ uwrap->arg = compat_ptr(uwrapcompat.arg);
80615+ uwrap->version = uwrapcompat.version;
80616+ uwrap->size = sizeof(struct gr_arg);
80617+
80618+ return 0;
80619+}
80620+
80621+int copy_gr_arg_compat(const struct gr_arg __user *buf, struct gr_arg *arg)
80622+{
80623+ struct gr_arg_compat argcompat;
80624+
80625+ if (copy_from_user(&argcompat, buf, sizeof(argcompat)))
80626+ return -EFAULT;
80627+
80628+ arg->role_db.r_table = compat_ptr(argcompat.role_db.r_table);
80629+ arg->role_db.num_pointers = argcompat.role_db.num_pointers;
80630+ arg->role_db.num_roles = argcompat.role_db.num_roles;
80631+ arg->role_db.num_domain_children = argcompat.role_db.num_domain_children;
80632+ arg->role_db.num_subjects = argcompat.role_db.num_subjects;
80633+ arg->role_db.num_objects = argcompat.role_db.num_objects;
80634+
80635+ memcpy(&arg->pw, &argcompat.pw, sizeof(arg->pw));
80636+ memcpy(&arg->salt, &argcompat.salt, sizeof(arg->salt));
80637+ memcpy(&arg->sum, &argcompat.sum, sizeof(arg->sum));
80638+ memcpy(&arg->sp_role, &argcompat.sp_role, sizeof(arg->sp_role));
80639+ arg->sprole_pws = compat_ptr(argcompat.sprole_pws);
80640+ arg->segv_device = argcompat.segv_device;
80641+ arg->segv_inode = argcompat.segv_inode;
80642+ arg->segv_uid = argcompat.segv_uid;
80643+ arg->num_sprole_pws = argcompat.num_sprole_pws;
80644+ arg->mode = argcompat.mode;
80645+
80646+ return 0;
80647+}
80648+
80649+int copy_acl_object_label_compat(struct acl_object_label *obj, const struct acl_object_label *userp)
80650+{
80651+ struct acl_object_label_compat objcompat;
80652+
80653+ if (copy_from_user(&objcompat, userp, sizeof(objcompat)))
80654+ return -EFAULT;
80655+
80656+ obj->filename = compat_ptr(objcompat.filename);
80657+ obj->inode = objcompat.inode;
80658+ obj->device = objcompat.device;
80659+ obj->mode = objcompat.mode;
80660+
80661+ obj->nested = compat_ptr(objcompat.nested);
80662+ obj->globbed = compat_ptr(objcompat.globbed);
80663+
80664+ obj->prev = compat_ptr(objcompat.prev);
80665+ obj->next = compat_ptr(objcompat.next);
80666+
80667+ return 0;
80668+}
80669+
80670+int copy_acl_subject_label_compat(struct acl_subject_label *subj, const struct acl_subject_label *userp)
80671+{
80672+ unsigned int i;
80673+ struct acl_subject_label_compat subjcompat;
80674+
80675+ if (copy_from_user(&subjcompat, userp, sizeof(subjcompat)))
80676+ return -EFAULT;
80677+
80678+ subj->filename = compat_ptr(subjcompat.filename);
80679+ subj->inode = subjcompat.inode;
80680+ subj->device = subjcompat.device;
80681+ subj->mode = subjcompat.mode;
80682+ subj->cap_mask = subjcompat.cap_mask;
80683+ subj->cap_lower = subjcompat.cap_lower;
80684+ subj->cap_invert_audit = subjcompat.cap_invert_audit;
80685+
80686+ for (i = 0; i < GR_NLIMITS; i++) {
80687+ if (subjcompat.res[i].rlim_cur == COMPAT_RLIM_INFINITY)
80688+ subj->res[i].rlim_cur = RLIM_INFINITY;
80689+ else
80690+ subj->res[i].rlim_cur = subjcompat.res[i].rlim_cur;
80691+ if (subjcompat.res[i].rlim_max == COMPAT_RLIM_INFINITY)
80692+ subj->res[i].rlim_max = RLIM_INFINITY;
80693+ else
80694+ subj->res[i].rlim_max = subjcompat.res[i].rlim_max;
80695+ }
80696+ subj->resmask = subjcompat.resmask;
80697+
80698+ subj->user_trans_type = subjcompat.user_trans_type;
80699+ subj->group_trans_type = subjcompat.group_trans_type;
80700+ subj->user_transitions = compat_ptr(subjcompat.user_transitions);
80701+ subj->group_transitions = compat_ptr(subjcompat.group_transitions);
80702+ subj->user_trans_num = subjcompat.user_trans_num;
80703+ subj->group_trans_num = subjcompat.group_trans_num;
80704+
80705+ memcpy(&subj->sock_families, &subjcompat.sock_families, sizeof(subj->sock_families));
80706+ memcpy(&subj->ip_proto, &subjcompat.ip_proto, sizeof(subj->ip_proto));
80707+ subj->ip_type = subjcompat.ip_type;
80708+ subj->ips = compat_ptr(subjcompat.ips);
80709+ subj->ip_num = subjcompat.ip_num;
80710+ subj->inaddr_any_override = subjcompat.inaddr_any_override;
80711+
80712+ subj->crashes = subjcompat.crashes;
80713+ subj->expires = subjcompat.expires;
80714+
80715+ subj->parent_subject = compat_ptr(subjcompat.parent_subject);
80716+ subj->hash = compat_ptr(subjcompat.hash);
80717+ subj->prev = compat_ptr(subjcompat.prev);
80718+ subj->next = compat_ptr(subjcompat.next);
80719+
80720+ subj->obj_hash = compat_ptr(subjcompat.obj_hash);
80721+ subj->obj_hash_size = subjcompat.obj_hash_size;
80722+ subj->pax_flags = subjcompat.pax_flags;
80723+
80724+ return 0;
80725+}
80726+
80727+int copy_acl_role_label_compat(struct acl_role_label *role, const struct acl_role_label *userp)
80728+{
80729+ struct acl_role_label_compat rolecompat;
80730+
80731+ if (copy_from_user(&rolecompat, userp, sizeof(rolecompat)))
80732+ return -EFAULT;
80733+
80734+ role->rolename = compat_ptr(rolecompat.rolename);
80735+ role->uidgid = rolecompat.uidgid;
80736+ role->roletype = rolecompat.roletype;
80737+
80738+ role->auth_attempts = rolecompat.auth_attempts;
80739+ role->expires = rolecompat.expires;
80740+
80741+ role->root_label = compat_ptr(rolecompat.root_label);
80742+ role->hash = compat_ptr(rolecompat.hash);
80743+
80744+ role->prev = compat_ptr(rolecompat.prev);
80745+ role->next = compat_ptr(rolecompat.next);
80746+
80747+ role->transitions = compat_ptr(rolecompat.transitions);
80748+ role->allowed_ips = compat_ptr(rolecompat.allowed_ips);
80749+ role->domain_children = compat_ptr(rolecompat.domain_children);
80750+ role->domain_child_num = rolecompat.domain_child_num;
80751+
80752+ role->umask = rolecompat.umask;
80753+
80754+ role->subj_hash = compat_ptr(rolecompat.subj_hash);
80755+ role->subj_hash_size = rolecompat.subj_hash_size;
80756+
80757+ return 0;
80758+}
80759+
80760+int copy_role_allowed_ip_compat(struct role_allowed_ip *roleip, const struct role_allowed_ip *userp)
80761+{
80762+ struct role_allowed_ip_compat roleip_compat;
80763+
80764+ if (copy_from_user(&roleip_compat, userp, sizeof(roleip_compat)))
80765+ return -EFAULT;
80766+
80767+ roleip->addr = roleip_compat.addr;
80768+ roleip->netmask = roleip_compat.netmask;
80769+
80770+ roleip->prev = compat_ptr(roleip_compat.prev);
80771+ roleip->next = compat_ptr(roleip_compat.next);
80772+
80773+ return 0;
80774+}
80775+
80776+int copy_role_transition_compat(struct role_transition *trans, const struct role_transition *userp)
80777+{
80778+ struct role_transition_compat trans_compat;
80779+
80780+ if (copy_from_user(&trans_compat, userp, sizeof(trans_compat)))
80781+ return -EFAULT;
80782+
80783+ trans->rolename = compat_ptr(trans_compat.rolename);
80784+
80785+ trans->prev = compat_ptr(trans_compat.prev);
80786+ trans->next = compat_ptr(trans_compat.next);
80787+
80788+ return 0;
80789+
80790+}
80791+
80792+int copy_gr_hash_struct_compat(struct gr_hash_struct *hash, const struct gr_hash_struct *userp)
80793+{
80794+ struct gr_hash_struct_compat hash_compat;
80795+
80796+ if (copy_from_user(&hash_compat, userp, sizeof(hash_compat)))
80797+ return -EFAULT;
80798+
80799+ hash->table = compat_ptr(hash_compat.table);
80800+ hash->nametable = compat_ptr(hash_compat.nametable);
80801+ hash->first = compat_ptr(hash_compat.first);
80802+
80803+ hash->table_size = hash_compat.table_size;
80804+ hash->used_size = hash_compat.used_size;
80805+
80806+ hash->type = hash_compat.type;
80807+
80808+ return 0;
80809+}
80810+
80811+int copy_pointer_from_array_compat(void *ptr, unsigned long idx, const void *userp)
80812+{
80813+ compat_uptr_t ptrcompat;
80814+
80815+ if (copy_from_user(&ptrcompat, userp + (idx * sizeof(ptrcompat)), sizeof(ptrcompat)))
80816+ return -EFAULT;
80817+
80818+ *(void **)ptr = compat_ptr(ptrcompat);
80819+
80820+ return 0;
80821+}
80822+
80823+int copy_acl_ip_label_compat(struct acl_ip_label *ip, const struct acl_ip_label *userp)
80824+{
80825+ struct acl_ip_label_compat ip_compat;
80826+
80827+ if (copy_from_user(&ip_compat, userp, sizeof(ip_compat)))
80828+ return -EFAULT;
80829+
80830+ ip->iface = compat_ptr(ip_compat.iface);
80831+ ip->addr = ip_compat.addr;
80832+ ip->netmask = ip_compat.netmask;
80833+ ip->low = ip_compat.low;
80834+ ip->high = ip_compat.high;
80835+ ip->mode = ip_compat.mode;
80836+ ip->type = ip_compat.type;
80837+
80838+ memcpy(&ip->proto, &ip_compat.proto, sizeof(ip->proto));
80839+
80840+ ip->prev = compat_ptr(ip_compat.prev);
80841+ ip->next = compat_ptr(ip_compat.next);
80842+
80843+ return 0;
80844+}
80845+
80846+int copy_sprole_pw_compat(struct sprole_pw *pw, unsigned long idx, const struct sprole_pw *userp)
80847+{
80848+ struct sprole_pw_compat pw_compat;
80849+
80850+ if (copy_from_user(&pw_compat, (const void *)userp + (sizeof(pw_compat) * idx), sizeof(pw_compat)))
80851+ return -EFAULT;
80852+
80853+ pw->rolename = compat_ptr(pw_compat.rolename);
80854+ memcpy(&pw->salt, pw_compat.salt, sizeof(pw->salt));
80855+ memcpy(&pw->sum, pw_compat.sum, sizeof(pw->sum));
80856+
80857+ return 0;
80858+}
80859+
80860+size_t get_gr_arg_wrapper_size_compat(void)
80861+{
80862+ return sizeof(struct gr_arg_wrapper_compat);
80863+}
80864+
80865diff --git a/grsecurity/gracl_fs.c b/grsecurity/gracl_fs.c
80866new file mode 100644
80867index 0000000..8ee8e4f
80868--- /dev/null
80869+++ b/grsecurity/gracl_fs.c
80870@@ -0,0 +1,447 @@
80871+#include <linux/kernel.h>
80872+#include <linux/sched.h>
80873+#include <linux/types.h>
80874+#include <linux/fs.h>
80875+#include <linux/file.h>
80876+#include <linux/stat.h>
80877+#include <linux/grsecurity.h>
80878+#include <linux/grinternal.h>
80879+#include <linux/gracl.h>
80880+
80881+umode_t
80882+gr_acl_umask(void)
80883+{
80884+ if (unlikely(!gr_acl_is_enabled()))
80885+ return 0;
80886+
80887+ return current->role->umask;
80888+}
80889+
80890+__u32
80891+gr_acl_handle_hidden_file(const struct dentry * dentry,
80892+ const struct vfsmount * mnt)
80893+{
80894+ __u32 mode;
80895+
80896+ if (unlikely(d_is_negative(dentry)))
80897+ return GR_FIND;
80898+
80899+ mode =
80900+ gr_search_file(dentry, GR_FIND | GR_AUDIT_FIND | GR_SUPPRESS, mnt);
80901+
80902+ if (unlikely(mode & GR_FIND && mode & GR_AUDIT_FIND)) {
80903+ gr_log_fs_rbac_generic(GR_DO_AUDIT, GR_HIDDEN_ACL_MSG, dentry, mnt);
80904+ return mode;
80905+ } else if (unlikely(!(mode & GR_FIND) && !(mode & GR_SUPPRESS))) {
80906+ gr_log_fs_rbac_generic(GR_DONT_AUDIT, GR_HIDDEN_ACL_MSG, dentry, mnt);
80907+ return 0;
80908+ } else if (unlikely(!(mode & GR_FIND)))
80909+ return 0;
80910+
80911+ return GR_FIND;
80912+}
80913+
80914+__u32
80915+gr_acl_handle_open(const struct dentry * dentry, const struct vfsmount * mnt,
80916+ int acc_mode)
80917+{
80918+ __u32 reqmode = GR_FIND;
80919+ __u32 mode;
80920+
80921+ if (unlikely(d_is_negative(dentry)))
80922+ return reqmode;
80923+
80924+ if (acc_mode & MAY_APPEND)
80925+ reqmode |= GR_APPEND;
80926+ else if (acc_mode & MAY_WRITE)
80927+ reqmode |= GR_WRITE;
80928+ if ((acc_mode & MAY_READ) && !S_ISDIR(dentry->d_inode->i_mode))
80929+ reqmode |= GR_READ;
80930+
80931+ mode =
80932+ gr_search_file(dentry, reqmode | to_gr_audit(reqmode) | GR_SUPPRESS,
80933+ mnt);
80934+
80935+ if (unlikely(((mode & reqmode) == reqmode) && mode & GR_AUDITS)) {
80936+ gr_log_fs_rbac_mode2(GR_DO_AUDIT, GR_OPEN_ACL_MSG, dentry, mnt,
80937+ reqmode & GR_READ ? " reading" : "",
80938+ reqmode & GR_WRITE ? " writing" : reqmode &
80939+ GR_APPEND ? " appending" : "");
80940+ return reqmode;
80941+ } else
80942+ if (unlikely((mode & reqmode) != reqmode && !(mode & GR_SUPPRESS)))
80943+ {
80944+ gr_log_fs_rbac_mode2(GR_DONT_AUDIT, GR_OPEN_ACL_MSG, dentry, mnt,
80945+ reqmode & GR_READ ? " reading" : "",
80946+ reqmode & GR_WRITE ? " writing" : reqmode &
80947+ GR_APPEND ? " appending" : "");
80948+ return 0;
80949+ } else if (unlikely((mode & reqmode) != reqmode))
80950+ return 0;
80951+
80952+ return reqmode;
80953+}
80954+
80955+__u32
80956+gr_acl_handle_creat(const struct dentry * dentry,
80957+ const struct dentry * p_dentry,
80958+ const struct vfsmount * p_mnt, int open_flags, int acc_mode,
80959+ const int imode)
80960+{
80961+ __u32 reqmode = GR_WRITE | GR_CREATE;
80962+ __u32 mode;
80963+
80964+ if (acc_mode & MAY_APPEND)
80965+ reqmode |= GR_APPEND;
80966+ // if a directory was required or the directory already exists, then
80967+ // don't count this open as a read
80968+ if ((acc_mode & MAY_READ) &&
80969+ !((open_flags & O_DIRECTORY) || (dentry->d_inode && S_ISDIR(dentry->d_inode->i_mode))))
80970+ reqmode |= GR_READ;
80971+ if ((open_flags & O_CREAT) &&
80972+ ((imode & S_ISUID) || ((imode & (S_ISGID | S_IXGRP)) == (S_ISGID | S_IXGRP))))
80973+ reqmode |= GR_SETID;
80974+
80975+ mode =
80976+ gr_check_create(dentry, p_dentry, p_mnt,
80977+ reqmode | to_gr_audit(reqmode) | GR_SUPPRESS);
80978+
80979+ if (unlikely(((mode & reqmode) == reqmode) && mode & GR_AUDITS)) {
80980+ gr_log_fs_rbac_mode2(GR_DO_AUDIT, GR_CREATE_ACL_MSG, dentry, p_mnt,
80981+ reqmode & GR_READ ? " reading" : "",
80982+ reqmode & GR_WRITE ? " writing" : reqmode &
80983+ GR_APPEND ? " appending" : "");
80984+ return reqmode;
80985+ } else
80986+ if (unlikely((mode & reqmode) != reqmode && !(mode & GR_SUPPRESS)))
80987+ {
80988+ gr_log_fs_rbac_mode2(GR_DONT_AUDIT, GR_CREATE_ACL_MSG, dentry, p_mnt,
80989+ reqmode & GR_READ ? " reading" : "",
80990+ reqmode & GR_WRITE ? " writing" : reqmode &
80991+ GR_APPEND ? " appending" : "");
80992+ return 0;
80993+ } else if (unlikely((mode & reqmode) != reqmode))
80994+ return 0;
80995+
80996+ return reqmode;
80997+}
80998+
80999+__u32
81000+gr_acl_handle_access(const struct dentry * dentry, const struct vfsmount * mnt,
81001+ const int fmode)
81002+{
81003+ __u32 mode, reqmode = GR_FIND;
81004+
81005+ if ((fmode & S_IXOTH) && !S_ISDIR(dentry->d_inode->i_mode))
81006+ reqmode |= GR_EXEC;
81007+ if (fmode & S_IWOTH)
81008+ reqmode |= GR_WRITE;
81009+ if (fmode & S_IROTH)
81010+ reqmode |= GR_READ;
81011+
81012+ mode =
81013+ gr_search_file(dentry, reqmode | to_gr_audit(reqmode) | GR_SUPPRESS,
81014+ mnt);
81015+
81016+ if (unlikely(((mode & reqmode) == reqmode) && mode & GR_AUDITS)) {
81017+ gr_log_fs_rbac_mode3(GR_DO_AUDIT, GR_ACCESS_ACL_MSG, dentry, mnt,
81018+ reqmode & GR_READ ? " reading" : "",
81019+ reqmode & GR_WRITE ? " writing" : "",
81020+ reqmode & GR_EXEC ? " executing" : "");
81021+ return reqmode;
81022+ } else
81023+ if (unlikely((mode & reqmode) != reqmode && !(mode & GR_SUPPRESS)))
81024+ {
81025+ gr_log_fs_rbac_mode3(GR_DONT_AUDIT, GR_ACCESS_ACL_MSG, dentry, mnt,
81026+ reqmode & GR_READ ? " reading" : "",
81027+ reqmode & GR_WRITE ? " writing" : "",
81028+ reqmode & GR_EXEC ? " executing" : "");
81029+ return 0;
81030+ } else if (unlikely((mode & reqmode) != reqmode))
81031+ return 0;
81032+
81033+ return reqmode;
81034+}
81035+
81036+static __u32 generic_fs_handler(const struct dentry *dentry, const struct vfsmount *mnt, __u32 reqmode, const char *fmt)
81037+{
81038+ __u32 mode;
81039+
81040+ mode = gr_search_file(dentry, reqmode | to_gr_audit(reqmode) | GR_SUPPRESS, mnt);
81041+
81042+ if (unlikely(((mode & (reqmode)) == (reqmode)) && mode & GR_AUDITS)) {
81043+ gr_log_fs_rbac_generic(GR_DO_AUDIT, fmt, dentry, mnt);
81044+ return mode;
81045+ } else if (unlikely((mode & (reqmode)) != (reqmode) && !(mode & GR_SUPPRESS))) {
81046+ gr_log_fs_rbac_generic(GR_DONT_AUDIT, fmt, dentry, mnt);
81047+ return 0;
81048+ } else if (unlikely((mode & (reqmode)) != (reqmode)))
81049+ return 0;
81050+
81051+ return (reqmode);
81052+}
81053+
81054+__u32
81055+gr_acl_handle_rmdir(const struct dentry * dentry, const struct vfsmount * mnt)
81056+{
81057+ return generic_fs_handler(dentry, mnt, GR_WRITE | GR_DELETE , GR_RMDIR_ACL_MSG);
81058+}
81059+
81060+__u32
81061+gr_acl_handle_unlink(const struct dentry *dentry, const struct vfsmount *mnt)
81062+{
81063+ return generic_fs_handler(dentry, mnt, GR_WRITE | GR_DELETE , GR_UNLINK_ACL_MSG);
81064+}
81065+
81066+__u32
81067+gr_acl_handle_truncate(const struct dentry *dentry, const struct vfsmount *mnt)
81068+{
81069+ return generic_fs_handler(dentry, mnt, GR_WRITE, GR_TRUNCATE_ACL_MSG);
81070+}
81071+
81072+__u32
81073+gr_acl_handle_utime(const struct dentry *dentry, const struct vfsmount *mnt)
81074+{
81075+ return generic_fs_handler(dentry, mnt, GR_WRITE, GR_ATIME_ACL_MSG);
81076+}
81077+
81078+__u32
81079+gr_acl_handle_chmod(const struct dentry *dentry, const struct vfsmount *mnt,
81080+ umode_t *modeptr)
81081+{
81082+ umode_t mode;
81083+
81084+ *modeptr &= ~gr_acl_umask();
81085+ mode = *modeptr;
81086+
81087+ if (unlikely(dentry->d_inode && S_ISSOCK(dentry->d_inode->i_mode)))
81088+ return 1;
81089+
81090+ if (unlikely(dentry->d_inode && !S_ISDIR(dentry->d_inode->i_mode) &&
81091+ ((mode & S_ISUID) || ((mode & (S_ISGID | S_IXGRP)) == (S_ISGID | S_IXGRP))))) {
81092+ return generic_fs_handler(dentry, mnt, GR_WRITE | GR_SETID,
81093+ GR_CHMOD_ACL_MSG);
81094+ } else {
81095+ return generic_fs_handler(dentry, mnt, GR_WRITE, GR_CHMOD_ACL_MSG);
81096+ }
81097+}
81098+
81099+__u32
81100+gr_acl_handle_chown(const struct dentry *dentry, const struct vfsmount *mnt)
81101+{
81102+ return generic_fs_handler(dentry, mnt, GR_WRITE, GR_CHOWN_ACL_MSG);
81103+}
81104+
81105+__u32
81106+gr_acl_handle_setxattr(const struct dentry *dentry, const struct vfsmount *mnt)
81107+{
81108+ return generic_fs_handler(dentry, mnt, GR_WRITE, GR_SETXATTR_ACL_MSG);
81109+}
81110+
81111+__u32
81112+gr_acl_handle_removexattr(const struct dentry *dentry, const struct vfsmount *mnt)
81113+{
81114+ return generic_fs_handler(dentry, mnt, GR_WRITE, GR_REMOVEXATTR_ACL_MSG);
81115+}
81116+
81117+__u32
81118+gr_acl_handle_execve(const struct dentry *dentry, const struct vfsmount *mnt)
81119+{
81120+ return generic_fs_handler(dentry, mnt, GR_EXEC, GR_EXEC_ACL_MSG);
81121+}
81122+
81123+__u32
81124+gr_acl_handle_unix(const struct dentry *dentry, const struct vfsmount *mnt)
81125+{
81126+ return generic_fs_handler(dentry, mnt, GR_READ | GR_WRITE,
81127+ GR_UNIXCONNECT_ACL_MSG);
81128+}
81129+
81130+/* hardlinks require at minimum create and link permission,
81131+ any additional privilege required is based on the
81132+ privilege of the file being linked to
81133+*/
81134+__u32
81135+gr_acl_handle_link(const struct dentry * new_dentry,
81136+ const struct dentry * parent_dentry,
81137+ const struct vfsmount * parent_mnt,
81138+ const struct dentry * old_dentry,
81139+ const struct vfsmount * old_mnt, const struct filename *to)
81140+{
81141+ __u32 mode;
81142+ __u32 needmode = GR_CREATE | GR_LINK;
81143+ __u32 needaudit = GR_AUDIT_CREATE | GR_AUDIT_LINK;
81144+
81145+ mode =
81146+ gr_check_link(new_dentry, parent_dentry, parent_mnt, old_dentry,
81147+ old_mnt);
81148+
81149+ if (unlikely(((mode & needmode) == needmode) && (mode & needaudit))) {
81150+ gr_log_fs_rbac_str(GR_DO_AUDIT, GR_LINK_ACL_MSG, old_dentry, old_mnt, to->name);
81151+ return mode;
81152+ } else if (unlikely(((mode & needmode) != needmode) && !(mode & GR_SUPPRESS))) {
81153+ gr_log_fs_rbac_str(GR_DONT_AUDIT, GR_LINK_ACL_MSG, old_dentry, old_mnt, to->name);
81154+ return 0;
81155+ } else if (unlikely((mode & needmode) != needmode))
81156+ return 0;
81157+
81158+ return 1;
81159+}
81160+
81161+__u32
81162+gr_acl_handle_symlink(const struct dentry * new_dentry,
81163+ const struct dentry * parent_dentry,
81164+ const struct vfsmount * parent_mnt, const struct filename *from)
81165+{
81166+ __u32 needmode = GR_WRITE | GR_CREATE;
81167+ __u32 mode;
81168+
81169+ mode =
81170+ gr_check_create(new_dentry, parent_dentry, parent_mnt,
81171+ GR_CREATE | GR_AUDIT_CREATE |
81172+ GR_WRITE | GR_AUDIT_WRITE | GR_SUPPRESS);
81173+
81174+ if (unlikely(mode & GR_WRITE && mode & GR_AUDITS)) {
81175+ gr_log_fs_str_rbac(GR_DO_AUDIT, GR_SYMLINK_ACL_MSG, from->name, new_dentry, parent_mnt);
81176+ return mode;
81177+ } else if (unlikely(((mode & needmode) != needmode) && !(mode & GR_SUPPRESS))) {
81178+ gr_log_fs_str_rbac(GR_DONT_AUDIT, GR_SYMLINK_ACL_MSG, from->name, new_dentry, parent_mnt);
81179+ return 0;
81180+ } else if (unlikely((mode & needmode) != needmode))
81181+ return 0;
81182+
81183+ return (GR_WRITE | GR_CREATE);
81184+}
81185+
81186+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)
81187+{
81188+ __u32 mode;
81189+
81190+ mode = gr_check_create(new_dentry, parent_dentry, parent_mnt, reqmode | to_gr_audit(reqmode) | GR_SUPPRESS);
81191+
81192+ if (unlikely(((mode & (reqmode)) == (reqmode)) && mode & GR_AUDITS)) {
81193+ gr_log_fs_rbac_generic(GR_DO_AUDIT, fmt, new_dentry, parent_mnt);
81194+ return mode;
81195+ } else if (unlikely((mode & (reqmode)) != (reqmode) && !(mode & GR_SUPPRESS))) {
81196+ gr_log_fs_rbac_generic(GR_DONT_AUDIT, fmt, new_dentry, parent_mnt);
81197+ return 0;
81198+ } else if (unlikely((mode & (reqmode)) != (reqmode)))
81199+ return 0;
81200+
81201+ return (reqmode);
81202+}
81203+
81204+__u32
81205+gr_acl_handle_mknod(const struct dentry * new_dentry,
81206+ const struct dentry * parent_dentry,
81207+ const struct vfsmount * parent_mnt,
81208+ const int mode)
81209+{
81210+ __u32 reqmode = GR_WRITE | GR_CREATE;
81211+ if (unlikely((mode & S_ISUID) || ((mode & (S_ISGID | S_IXGRP)) == (S_ISGID | S_IXGRP))))
81212+ reqmode |= GR_SETID;
81213+
81214+ return generic_fs_create_handler(new_dentry, parent_dentry, parent_mnt,
81215+ reqmode, GR_MKNOD_ACL_MSG);
81216+}
81217+
81218+__u32
81219+gr_acl_handle_mkdir(const struct dentry *new_dentry,
81220+ const struct dentry *parent_dentry,
81221+ const struct vfsmount *parent_mnt)
81222+{
81223+ return generic_fs_create_handler(new_dentry, parent_dentry, parent_mnt,
81224+ GR_WRITE | GR_CREATE, GR_MKDIR_ACL_MSG);
81225+}
81226+
81227+#define RENAME_CHECK_SUCCESS(old, new) \
81228+ (((old & (GR_WRITE | GR_READ)) == (GR_WRITE | GR_READ)) && \
81229+ ((new & (GR_WRITE | GR_READ)) == (GR_WRITE | GR_READ)))
81230+
81231+int
81232+gr_acl_handle_rename(struct dentry *new_dentry,
81233+ struct dentry *parent_dentry,
81234+ const struct vfsmount *parent_mnt,
81235+ struct dentry *old_dentry,
81236+ struct inode *old_parent_inode,
81237+ struct vfsmount *old_mnt, const struct filename *newname, unsigned int flags)
81238+{
81239+ __u32 comp1, comp2;
81240+ int error = 0;
81241+
81242+ if (unlikely(!gr_acl_is_enabled()))
81243+ return 0;
81244+
81245+ if (flags & RENAME_EXCHANGE) {
81246+ comp1 = gr_search_file(new_dentry, GR_READ | GR_WRITE |
81247+ GR_AUDIT_READ | GR_AUDIT_WRITE |
81248+ GR_SUPPRESS, parent_mnt);
81249+ comp2 =
81250+ gr_search_file(old_dentry,
81251+ GR_READ | GR_WRITE | GR_AUDIT_READ |
81252+ GR_AUDIT_WRITE | GR_SUPPRESS, old_mnt);
81253+ } else if (d_is_negative(new_dentry)) {
81254+ comp1 = gr_check_create(new_dentry, parent_dentry, parent_mnt,
81255+ GR_READ | GR_WRITE | GR_CREATE | GR_AUDIT_READ |
81256+ GR_AUDIT_WRITE | GR_AUDIT_CREATE | GR_SUPPRESS);
81257+ comp2 = gr_search_file(old_dentry, GR_READ | GR_WRITE |
81258+ GR_DELETE | GR_AUDIT_DELETE |
81259+ GR_AUDIT_READ | GR_AUDIT_WRITE |
81260+ GR_SUPPRESS, old_mnt);
81261+ } else {
81262+ comp1 = gr_search_file(new_dentry, GR_READ | GR_WRITE |
81263+ GR_CREATE | GR_DELETE |
81264+ GR_AUDIT_CREATE | GR_AUDIT_DELETE |
81265+ GR_AUDIT_READ | GR_AUDIT_WRITE |
81266+ GR_SUPPRESS, parent_mnt);
81267+ comp2 =
81268+ gr_search_file(old_dentry,
81269+ GR_READ | GR_WRITE | GR_AUDIT_READ |
81270+ GR_DELETE | GR_AUDIT_DELETE |
81271+ GR_AUDIT_WRITE | GR_SUPPRESS, old_mnt);
81272+ }
81273+
81274+ if (RENAME_CHECK_SUCCESS(comp1, comp2) &&
81275+ ((comp1 & GR_AUDITS) || (comp2 & GR_AUDITS)))
81276+ gr_log_fs_rbac_str(GR_DO_AUDIT, GR_RENAME_ACL_MSG, old_dentry, old_mnt, newname->name);
81277+ else if (!RENAME_CHECK_SUCCESS(comp1, comp2) && !(comp1 & GR_SUPPRESS)
81278+ && !(comp2 & GR_SUPPRESS)) {
81279+ gr_log_fs_rbac_str(GR_DONT_AUDIT, GR_RENAME_ACL_MSG, old_dentry, old_mnt, newname->name);
81280+ error = -EACCES;
81281+ } else if (unlikely(!RENAME_CHECK_SUCCESS(comp1, comp2)))
81282+ error = -EACCES;
81283+
81284+ return error;
81285+}
81286+
81287+void
81288+gr_acl_handle_exit(void)
81289+{
81290+ u16 id;
81291+ char *rolename;
81292+
81293+ if (unlikely(current->acl_sp_role && gr_acl_is_enabled() &&
81294+ !(current->role->roletype & GR_ROLE_PERSIST))) {
81295+ id = current->acl_role_id;
81296+ rolename = current->role->rolename;
81297+ gr_set_acls(1);
81298+ gr_log_str_int(GR_DONT_AUDIT_GOOD, GR_SPROLEL_ACL_MSG, rolename, id);
81299+ }
81300+
81301+ gr_put_exec_file(current);
81302+ return;
81303+}
81304+
81305+int
81306+gr_acl_handle_procpidmem(const struct task_struct *task)
81307+{
81308+ if (unlikely(!gr_acl_is_enabled()))
81309+ return 0;
81310+
81311+ if (task != current && (task->acl->mode & GR_PROTPROCFD) &&
81312+ !(current->acl->mode & GR_POVERRIDE) &&
81313+ !(current->role->roletype & GR_ROLE_GOD))
81314+ return -EACCES;
81315+
81316+ return 0;
81317+}
81318diff --git a/grsecurity/gracl_ip.c b/grsecurity/gracl_ip.c
81319new file mode 100644
81320index 0000000..f056b81
81321--- /dev/null
81322+++ b/grsecurity/gracl_ip.c
81323@@ -0,0 +1,386 @@
81324+#include <linux/kernel.h>
81325+#include <asm/uaccess.h>
81326+#include <asm/errno.h>
81327+#include <net/sock.h>
81328+#include <linux/file.h>
81329+#include <linux/fs.h>
81330+#include <linux/net.h>
81331+#include <linux/in.h>
81332+#include <linux/skbuff.h>
81333+#include <linux/ip.h>
81334+#include <linux/udp.h>
81335+#include <linux/types.h>
81336+#include <linux/sched.h>
81337+#include <linux/netdevice.h>
81338+#include <linux/inetdevice.h>
81339+#include <linux/gracl.h>
81340+#include <linux/grsecurity.h>
81341+#include <linux/grinternal.h>
81342+
81343+#define GR_BIND 0x01
81344+#define GR_CONNECT 0x02
81345+#define GR_INVERT 0x04
81346+#define GR_BINDOVERRIDE 0x08
81347+#define GR_CONNECTOVERRIDE 0x10
81348+#define GR_SOCK_FAMILY 0x20
81349+
81350+static const char * gr_protocols[IPPROTO_MAX] = {
81351+ "ip", "icmp", "igmp", "ggp", "ipencap", "st", "tcp", "cbt",
81352+ "egp", "igp", "bbn-rcc", "nvp", "pup", "argus", "emcon", "xnet",
81353+ "chaos", "udp", "mux", "dcn", "hmp", "prm", "xns-idp", "trunk-1",
81354+ "trunk-2", "leaf-1", "leaf-2", "rdp", "irtp", "iso-tp4", "netblt", "mfe-nsp",
81355+ "merit-inp", "sep", "3pc", "idpr", "xtp", "ddp", "idpr-cmtp", "tp++",
81356+ "il", "ipv6", "sdrp", "ipv6-route", "ipv6-frag", "idrp", "rsvp", "gre",
81357+ "mhrp", "bna", "ipv6-crypt", "ipv6-auth", "i-nlsp", "swipe", "narp", "mobile",
81358+ "tlsp", "skip", "ipv6-icmp", "ipv6-nonxt", "ipv6-opts", "unknown:61", "cftp", "unknown:63",
81359+ "sat-expak", "kryptolan", "rvd", "ippc", "unknown:68", "sat-mon", "visa", "ipcv",
81360+ "cpnx", "cphb", "wsn", "pvp", "br-sat-mon", "sun-nd", "wb-mon", "wb-expak",
81361+ "iso-ip", "vmtp", "secure-vmtp", "vines", "ttp", "nfsnet-igp", "dgp", "tcf",
81362+ "eigrp", "ospf", "sprite-rpc", "larp", "mtp", "ax.25", "ipip", "micp",
81363+ "scc-sp", "etherip", "encap", "unknown:99", "gmtp", "ifmp", "pnni", "pim",
81364+ "aris", "scps", "qnx", "a/n", "ipcomp", "snp", "compaq-peer", "ipx-in-ip",
81365+ "vrrp", "pgm", "unknown:114", "l2tp", "ddx", "iatp", "stp", "srp",
81366+ "uti", "smp", "sm", "ptp", "isis", "fire", "crtp", "crdup",
81367+ "sscopmce", "iplt", "sps", "pipe", "sctp", "fc", "unkown:134", "unknown:135",
81368+ "unknown:136", "unknown:137", "unknown:138", "unknown:139", "unknown:140", "unknown:141", "unknown:142", "unknown:143",
81369+ "unknown:144", "unknown:145", "unknown:146", "unknown:147", "unknown:148", "unknown:149", "unknown:150", "unknown:151",
81370+ "unknown:152", "unknown:153", "unknown:154", "unknown:155", "unknown:156", "unknown:157", "unknown:158", "unknown:159",
81371+ "unknown:160", "unknown:161", "unknown:162", "unknown:163", "unknown:164", "unknown:165", "unknown:166", "unknown:167",
81372+ "unknown:168", "unknown:169", "unknown:170", "unknown:171", "unknown:172", "unknown:173", "unknown:174", "unknown:175",
81373+ "unknown:176", "unknown:177", "unknown:178", "unknown:179", "unknown:180", "unknown:181", "unknown:182", "unknown:183",
81374+ "unknown:184", "unknown:185", "unknown:186", "unknown:187", "unknown:188", "unknown:189", "unknown:190", "unknown:191",
81375+ "unknown:192", "unknown:193", "unknown:194", "unknown:195", "unknown:196", "unknown:197", "unknown:198", "unknown:199",
81376+ "unknown:200", "unknown:201", "unknown:202", "unknown:203", "unknown:204", "unknown:205", "unknown:206", "unknown:207",
81377+ "unknown:208", "unknown:209", "unknown:210", "unknown:211", "unknown:212", "unknown:213", "unknown:214", "unknown:215",
81378+ "unknown:216", "unknown:217", "unknown:218", "unknown:219", "unknown:220", "unknown:221", "unknown:222", "unknown:223",
81379+ "unknown:224", "unknown:225", "unknown:226", "unknown:227", "unknown:228", "unknown:229", "unknown:230", "unknown:231",
81380+ "unknown:232", "unknown:233", "unknown:234", "unknown:235", "unknown:236", "unknown:237", "unknown:238", "unknown:239",
81381+ "unknown:240", "unknown:241", "unknown:242", "unknown:243", "unknown:244", "unknown:245", "unknown:246", "unknown:247",
81382+ "unknown:248", "unknown:249", "unknown:250", "unknown:251", "unknown:252", "unknown:253", "unknown:254", "unknown:255",
81383+ };
81384+
81385+static const char * gr_socktypes[SOCK_MAX] = {
81386+ "unknown:0", "stream", "dgram", "raw", "rdm", "seqpacket", "unknown:6",
81387+ "unknown:7", "unknown:8", "unknown:9", "packet"
81388+ };
81389+
81390+static const char * gr_sockfamilies[AF_MAX+1] = {
81391+ "unspec", "unix", "inet", "ax25", "ipx", "appletalk", "netrom", "bridge", "atmpvc", "x25",
81392+ "inet6", "rose", "decnet", "netbeui", "security", "key", "netlink", "packet", "ash",
81393+ "econet", "atmsvc", "rds", "sna", "irda", "ppox", "wanpipe", "llc", "fam_27", "fam_28",
81394+ "tipc", "bluetooth", "iucv", "rxrpc", "isdn", "phonet", "ieee802154", "ciaf"
81395+ };
81396+
81397+const char *
81398+gr_proto_to_name(unsigned char proto)
81399+{
81400+ return gr_protocols[proto];
81401+}
81402+
81403+const char *
81404+gr_socktype_to_name(unsigned char type)
81405+{
81406+ return gr_socktypes[type];
81407+}
81408+
81409+const char *
81410+gr_sockfamily_to_name(unsigned char family)
81411+{
81412+ return gr_sockfamilies[family];
81413+}
81414+
81415+extern const struct net_proto_family __rcu *net_families[NPROTO] __read_mostly;
81416+
81417+int
81418+gr_search_socket(const int domain, const int type, const int protocol)
81419+{
81420+ struct acl_subject_label *curr;
81421+ const struct cred *cred = current_cred();
81422+
81423+ if (unlikely(!gr_acl_is_enabled()))
81424+ goto exit;
81425+
81426+ if ((domain < 0) || (type < 0) || (protocol < 0) ||
81427+ (domain >= AF_MAX) || (type >= SOCK_MAX) || (protocol >= IPPROTO_MAX))
81428+ goto exit; // let the kernel handle it
81429+
81430+ curr = current->acl;
81431+
81432+ if (curr->sock_families[domain / 32] & (1U << (domain % 32))) {
81433+ /* the family is allowed, if this is PF_INET allow it only if
81434+ the extra sock type/protocol checks pass */
81435+ if (domain == PF_INET)
81436+ goto inet_check;
81437+ goto exit;
81438+ } else {
81439+ if (curr->mode & (GR_LEARN | GR_INHERITLEARN)) {
81440+ __u32 fakeip = 0;
81441+ security_learn(GR_IP_LEARN_MSG, current->role->rolename,
81442+ current->role->roletype, GR_GLOBAL_UID(cred->uid),
81443+ GR_GLOBAL_GID(cred->gid), current->exec_file ?
81444+ gr_to_filename(current->exec_file->f_path.dentry,
81445+ current->exec_file->f_path.mnt) :
81446+ curr->filename, curr->filename,
81447+ &fakeip, domain, 0, 0, GR_SOCK_FAMILY,
81448+ &current->signal->saved_ip);
81449+ goto exit;
81450+ }
81451+ goto exit_fail;
81452+ }
81453+
81454+inet_check:
81455+ /* the rest of this checking is for IPv4 only */
81456+ if (!curr->ips)
81457+ goto exit;
81458+
81459+ if ((curr->ip_type & (1U << type)) &&
81460+ (curr->ip_proto[protocol / 32] & (1U << (protocol % 32))))
81461+ goto exit;
81462+
81463+ if (curr->mode & (GR_LEARN | GR_INHERITLEARN)) {
81464+ /* we don't place acls on raw sockets , and sometimes
81465+ dgram/ip sockets are opened for ioctl and not
81466+ bind/connect, so we'll fake a bind learn log */
81467+ if (type == SOCK_RAW || type == SOCK_PACKET) {
81468+ __u32 fakeip = 0;
81469+ security_learn(GR_IP_LEARN_MSG, current->role->rolename,
81470+ current->role->roletype, GR_GLOBAL_UID(cred->uid),
81471+ GR_GLOBAL_GID(cred->gid), current->exec_file ?
81472+ gr_to_filename(current->exec_file->f_path.dentry,
81473+ current->exec_file->f_path.mnt) :
81474+ curr->filename, curr->filename,
81475+ &fakeip, 0, type,
81476+ protocol, GR_CONNECT, &current->signal->saved_ip);
81477+ } else if ((type == SOCK_DGRAM) && (protocol == IPPROTO_IP)) {
81478+ __u32 fakeip = 0;
81479+ security_learn(GR_IP_LEARN_MSG, current->role->rolename,
81480+ current->role->roletype, GR_GLOBAL_UID(cred->uid),
81481+ GR_GLOBAL_GID(cred->gid), current->exec_file ?
81482+ gr_to_filename(current->exec_file->f_path.dentry,
81483+ current->exec_file->f_path.mnt) :
81484+ curr->filename, curr->filename,
81485+ &fakeip, 0, type,
81486+ protocol, GR_BIND, &current->signal->saved_ip);
81487+ }
81488+ /* we'll log when they use connect or bind */
81489+ goto exit;
81490+ }
81491+
81492+exit_fail:
81493+ if (domain == PF_INET)
81494+ gr_log_str3(GR_DONT_AUDIT, GR_SOCK_MSG, gr_sockfamily_to_name(domain),
81495+ gr_socktype_to_name(type), gr_proto_to_name(protocol));
81496+ else if (rcu_access_pointer(net_families[domain]) != NULL)
81497+ gr_log_str2_int(GR_DONT_AUDIT, GR_SOCK_NOINET_MSG, gr_sockfamily_to_name(domain),
81498+ gr_socktype_to_name(type), protocol);
81499+
81500+ return 0;
81501+exit:
81502+ return 1;
81503+}
81504+
81505+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)
81506+{
81507+ if ((ip->mode & mode) &&
81508+ (ip_port >= ip->low) &&
81509+ (ip_port <= ip->high) &&
81510+ ((ntohl(ip_addr) & our_netmask) ==
81511+ (ntohl(our_addr) & our_netmask))
81512+ && (ip->proto[protocol / 32] & (1U << (protocol % 32)))
81513+ && (ip->type & (1U << type))) {
81514+ if (ip->mode & GR_INVERT)
81515+ return 2; // specifically denied
81516+ else
81517+ return 1; // allowed
81518+ }
81519+
81520+ return 0; // not specifically allowed, may continue parsing
81521+}
81522+
81523+static int
81524+gr_search_connectbind(const int full_mode, struct sock *sk,
81525+ struct sockaddr_in *addr, const int type)
81526+{
81527+ char iface[IFNAMSIZ] = {0};
81528+ struct acl_subject_label *curr;
81529+ struct acl_ip_label *ip;
81530+ struct inet_sock *isk;
81531+ struct net_device *dev;
81532+ struct in_device *idev;
81533+ unsigned long i;
81534+ int ret;
81535+ int mode = full_mode & (GR_BIND | GR_CONNECT);
81536+ __u32 ip_addr = 0;
81537+ __u32 our_addr;
81538+ __u32 our_netmask;
81539+ char *p;
81540+ __u16 ip_port = 0;
81541+ const struct cred *cred = current_cred();
81542+
81543+ if (unlikely(!gr_acl_is_enabled() || sk->sk_family != PF_INET))
81544+ return 0;
81545+
81546+ curr = current->acl;
81547+ isk = inet_sk(sk);
81548+
81549+ /* INADDR_ANY overriding for binds, inaddr_any_override is already in network order */
81550+ if ((full_mode & GR_BINDOVERRIDE) && addr->sin_addr.s_addr == htonl(INADDR_ANY) && curr->inaddr_any_override != 0)
81551+ addr->sin_addr.s_addr = curr->inaddr_any_override;
81552+ if ((full_mode & GR_CONNECT) && isk->inet_saddr == htonl(INADDR_ANY) && curr->inaddr_any_override != 0) {
81553+ struct sockaddr_in saddr;
81554+ int err;
81555+
81556+ saddr.sin_family = AF_INET;
81557+ saddr.sin_addr.s_addr = curr->inaddr_any_override;
81558+ saddr.sin_port = isk->inet_sport;
81559+
81560+ err = security_socket_bind(sk->sk_socket, (struct sockaddr *)&saddr, sizeof(struct sockaddr_in));
81561+ if (err)
81562+ return err;
81563+
81564+ err = sk->sk_socket->ops->bind(sk->sk_socket, (struct sockaddr *)&saddr, sizeof(struct sockaddr_in));
81565+ if (err)
81566+ return err;
81567+ }
81568+
81569+ if (!curr->ips)
81570+ return 0;
81571+
81572+ ip_addr = addr->sin_addr.s_addr;
81573+ ip_port = ntohs(addr->sin_port);
81574+
81575+ if (curr->mode & (GR_LEARN | GR_INHERITLEARN)) {
81576+ security_learn(GR_IP_LEARN_MSG, current->role->rolename,
81577+ current->role->roletype, GR_GLOBAL_UID(cred->uid),
81578+ GR_GLOBAL_GID(cred->gid), current->exec_file ?
81579+ gr_to_filename(current->exec_file->f_path.dentry,
81580+ current->exec_file->f_path.mnt) :
81581+ curr->filename, curr->filename,
81582+ &ip_addr, ip_port, type,
81583+ sk->sk_protocol, mode, &current->signal->saved_ip);
81584+ return 0;
81585+ }
81586+
81587+ for (i = 0; i < curr->ip_num; i++) {
81588+ ip = *(curr->ips + i);
81589+ if (ip->iface != NULL) {
81590+ strncpy(iface, ip->iface, IFNAMSIZ - 1);
81591+ p = strchr(iface, ':');
81592+ if (p != NULL)
81593+ *p = '\0';
81594+ dev = dev_get_by_name(sock_net(sk), iface);
81595+ if (dev == NULL)
81596+ continue;
81597+ idev = in_dev_get(dev);
81598+ if (idev == NULL) {
81599+ dev_put(dev);
81600+ continue;
81601+ }
81602+ rcu_read_lock();
81603+ for_ifa(idev) {
81604+ if (!strcmp(ip->iface, ifa->ifa_label)) {
81605+ our_addr = ifa->ifa_address;
81606+ our_netmask = 0xffffffff;
81607+ ret = check_ip_policy(ip, ip_addr, ip_port, sk->sk_protocol, mode, type, our_addr, our_netmask);
81608+ if (ret == 1) {
81609+ rcu_read_unlock();
81610+ in_dev_put(idev);
81611+ dev_put(dev);
81612+ return 0;
81613+ } else if (ret == 2) {
81614+ rcu_read_unlock();
81615+ in_dev_put(idev);
81616+ dev_put(dev);
81617+ goto denied;
81618+ }
81619+ }
81620+ } endfor_ifa(idev);
81621+ rcu_read_unlock();
81622+ in_dev_put(idev);
81623+ dev_put(dev);
81624+ } else {
81625+ our_addr = ip->addr;
81626+ our_netmask = ip->netmask;
81627+ ret = check_ip_policy(ip, ip_addr, ip_port, sk->sk_protocol, mode, type, our_addr, our_netmask);
81628+ if (ret == 1)
81629+ return 0;
81630+ else if (ret == 2)
81631+ goto denied;
81632+ }
81633+ }
81634+
81635+denied:
81636+ if (mode == GR_BIND)
81637+ 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));
81638+ else if (mode == GR_CONNECT)
81639+ 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));
81640+
81641+ return -EACCES;
81642+}
81643+
81644+int
81645+gr_search_connect(struct socket *sock, struct sockaddr_in *addr)
81646+{
81647+ /* always allow disconnection of dgram sockets with connect */
81648+ if (addr->sin_family == AF_UNSPEC)
81649+ return 0;
81650+ return gr_search_connectbind(GR_CONNECT | GR_CONNECTOVERRIDE, sock->sk, addr, sock->type);
81651+}
81652+
81653+int
81654+gr_search_bind(struct socket *sock, struct sockaddr_in *addr)
81655+{
81656+ return gr_search_connectbind(GR_BIND | GR_BINDOVERRIDE, sock->sk, addr, sock->type);
81657+}
81658+
81659+int gr_search_listen(struct socket *sock)
81660+{
81661+ struct sock *sk = sock->sk;
81662+ struct sockaddr_in addr;
81663+
81664+ addr.sin_addr.s_addr = inet_sk(sk)->inet_saddr;
81665+ addr.sin_port = inet_sk(sk)->inet_sport;
81666+
81667+ return gr_search_connectbind(GR_BIND | GR_CONNECTOVERRIDE, sock->sk, &addr, sock->type);
81668+}
81669+
81670+int gr_search_accept(struct socket *sock)
81671+{
81672+ struct sock *sk = sock->sk;
81673+ struct sockaddr_in addr;
81674+
81675+ addr.sin_addr.s_addr = inet_sk(sk)->inet_saddr;
81676+ addr.sin_port = inet_sk(sk)->inet_sport;
81677+
81678+ return gr_search_connectbind(GR_BIND | GR_CONNECTOVERRIDE, sock->sk, &addr, sock->type);
81679+}
81680+
81681+int
81682+gr_search_udp_sendmsg(struct sock *sk, struct sockaddr_in *addr)
81683+{
81684+ if (addr)
81685+ return gr_search_connectbind(GR_CONNECT, sk, addr, SOCK_DGRAM);
81686+ else {
81687+ struct sockaddr_in sin;
81688+ const struct inet_sock *inet = inet_sk(sk);
81689+
81690+ sin.sin_addr.s_addr = inet->inet_daddr;
81691+ sin.sin_port = inet->inet_dport;
81692+
81693+ return gr_search_connectbind(GR_CONNECT | GR_CONNECTOVERRIDE, sk, &sin, SOCK_DGRAM);
81694+ }
81695+}
81696+
81697+int
81698+gr_search_udp_recvmsg(struct sock *sk, const struct sk_buff *skb)
81699+{
81700+ struct sockaddr_in sin;
81701+
81702+ if (unlikely(skb->len < sizeof (struct udphdr)))
81703+ return 0; // skip this packet
81704+
81705+ sin.sin_addr.s_addr = ip_hdr(skb)->saddr;
81706+ sin.sin_port = udp_hdr(skb)->source;
81707+
81708+ return gr_search_connectbind(GR_CONNECT | GR_CONNECTOVERRIDE, sk, &sin, SOCK_DGRAM);
81709+}
81710diff --git a/grsecurity/gracl_learn.c b/grsecurity/gracl_learn.c
81711new file mode 100644
81712index 0000000..25f54ef
81713--- /dev/null
81714+++ b/grsecurity/gracl_learn.c
81715@@ -0,0 +1,207 @@
81716+#include <linux/kernel.h>
81717+#include <linux/mm.h>
81718+#include <linux/sched.h>
81719+#include <linux/poll.h>
81720+#include <linux/string.h>
81721+#include <linux/file.h>
81722+#include <linux/types.h>
81723+#include <linux/vmalloc.h>
81724+#include <linux/grinternal.h>
81725+
81726+extern ssize_t write_grsec_handler(struct file * file, const char __user * buf,
81727+ size_t count, loff_t *ppos);
81728+extern int gr_acl_is_enabled(void);
81729+
81730+static DECLARE_WAIT_QUEUE_HEAD(learn_wait);
81731+static int gr_learn_attached;
81732+
81733+/* use a 512k buffer */
81734+#define LEARN_BUFFER_SIZE (512 * 1024)
81735+
81736+static DEFINE_SPINLOCK(gr_learn_lock);
81737+static DEFINE_MUTEX(gr_learn_user_mutex);
81738+
81739+/* we need to maintain two buffers, so that the kernel context of grlearn
81740+ uses a semaphore around the userspace copying, and the other kernel contexts
81741+ use a spinlock when copying into the buffer, since they cannot sleep
81742+*/
81743+static char *learn_buffer;
81744+static char *learn_buffer_user;
81745+static int learn_buffer_len;
81746+static int learn_buffer_user_len;
81747+
81748+static ssize_t
81749+read_learn(struct file *file, char __user * buf, size_t count, loff_t * ppos)
81750+{
81751+ DECLARE_WAITQUEUE(wait, current);
81752+ ssize_t retval = 0;
81753+
81754+ add_wait_queue(&learn_wait, &wait);
81755+ set_current_state(TASK_INTERRUPTIBLE);
81756+ do {
81757+ mutex_lock(&gr_learn_user_mutex);
81758+ spin_lock(&gr_learn_lock);
81759+ if (learn_buffer_len)
81760+ break;
81761+ spin_unlock(&gr_learn_lock);
81762+ mutex_unlock(&gr_learn_user_mutex);
81763+ if (file->f_flags & O_NONBLOCK) {
81764+ retval = -EAGAIN;
81765+ goto out;
81766+ }
81767+ if (signal_pending(current)) {
81768+ retval = -ERESTARTSYS;
81769+ goto out;
81770+ }
81771+
81772+ schedule();
81773+ } while (1);
81774+
81775+ memcpy(learn_buffer_user, learn_buffer, learn_buffer_len);
81776+ learn_buffer_user_len = learn_buffer_len;
81777+ retval = learn_buffer_len;
81778+ learn_buffer_len = 0;
81779+
81780+ spin_unlock(&gr_learn_lock);
81781+
81782+ if (copy_to_user(buf, learn_buffer_user, learn_buffer_user_len))
81783+ retval = -EFAULT;
81784+
81785+ mutex_unlock(&gr_learn_user_mutex);
81786+out:
81787+ set_current_state(TASK_RUNNING);
81788+ remove_wait_queue(&learn_wait, &wait);
81789+ return retval;
81790+}
81791+
81792+static unsigned int
81793+poll_learn(struct file * file, poll_table * wait)
81794+{
81795+ poll_wait(file, &learn_wait, wait);
81796+
81797+ if (learn_buffer_len)
81798+ return (POLLIN | POLLRDNORM);
81799+
81800+ return 0;
81801+}
81802+
81803+void
81804+gr_clear_learn_entries(void)
81805+{
81806+ char *tmp;
81807+
81808+ mutex_lock(&gr_learn_user_mutex);
81809+ spin_lock(&gr_learn_lock);
81810+ tmp = learn_buffer;
81811+ learn_buffer = NULL;
81812+ spin_unlock(&gr_learn_lock);
81813+ if (tmp)
81814+ vfree(tmp);
81815+ if (learn_buffer_user != NULL) {
81816+ vfree(learn_buffer_user);
81817+ learn_buffer_user = NULL;
81818+ }
81819+ learn_buffer_len = 0;
81820+ mutex_unlock(&gr_learn_user_mutex);
81821+
81822+ return;
81823+}
81824+
81825+void
81826+gr_add_learn_entry(const char *fmt, ...)
81827+{
81828+ va_list args;
81829+ unsigned int len;
81830+
81831+ if (!gr_learn_attached)
81832+ return;
81833+
81834+ spin_lock(&gr_learn_lock);
81835+
81836+ /* leave a gap at the end so we know when it's "full" but don't have to
81837+ compute the exact length of the string we're trying to append
81838+ */
81839+ if (learn_buffer_len > LEARN_BUFFER_SIZE - 16384) {
81840+ spin_unlock(&gr_learn_lock);
81841+ wake_up_interruptible(&learn_wait);
81842+ return;
81843+ }
81844+ if (learn_buffer == NULL) {
81845+ spin_unlock(&gr_learn_lock);
81846+ return;
81847+ }
81848+
81849+ va_start(args, fmt);
81850+ len = vsnprintf(learn_buffer + learn_buffer_len, LEARN_BUFFER_SIZE - learn_buffer_len, fmt, args);
81851+ va_end(args);
81852+
81853+ learn_buffer_len += len + 1;
81854+
81855+ spin_unlock(&gr_learn_lock);
81856+ wake_up_interruptible(&learn_wait);
81857+
81858+ return;
81859+}
81860+
81861+static int
81862+open_learn(struct inode *inode, struct file *file)
81863+{
81864+ if (file->f_mode & FMODE_READ && gr_learn_attached)
81865+ return -EBUSY;
81866+ if (file->f_mode & FMODE_READ) {
81867+ int retval = 0;
81868+ mutex_lock(&gr_learn_user_mutex);
81869+ if (learn_buffer == NULL)
81870+ learn_buffer = vmalloc(LEARN_BUFFER_SIZE);
81871+ if (learn_buffer_user == NULL)
81872+ learn_buffer_user = vmalloc(LEARN_BUFFER_SIZE);
81873+ if (learn_buffer == NULL) {
81874+ retval = -ENOMEM;
81875+ goto out_error;
81876+ }
81877+ if (learn_buffer_user == NULL) {
81878+ retval = -ENOMEM;
81879+ goto out_error;
81880+ }
81881+ learn_buffer_len = 0;
81882+ learn_buffer_user_len = 0;
81883+ gr_learn_attached = 1;
81884+out_error:
81885+ mutex_unlock(&gr_learn_user_mutex);
81886+ return retval;
81887+ }
81888+ return 0;
81889+}
81890+
81891+static int
81892+close_learn(struct inode *inode, struct file *file)
81893+{
81894+ if (file->f_mode & FMODE_READ) {
81895+ char *tmp = NULL;
81896+ mutex_lock(&gr_learn_user_mutex);
81897+ spin_lock(&gr_learn_lock);
81898+ tmp = learn_buffer;
81899+ learn_buffer = NULL;
81900+ spin_unlock(&gr_learn_lock);
81901+ if (tmp)
81902+ vfree(tmp);
81903+ if (learn_buffer_user != NULL) {
81904+ vfree(learn_buffer_user);
81905+ learn_buffer_user = NULL;
81906+ }
81907+ learn_buffer_len = 0;
81908+ learn_buffer_user_len = 0;
81909+ gr_learn_attached = 0;
81910+ mutex_unlock(&gr_learn_user_mutex);
81911+ }
81912+
81913+ return 0;
81914+}
81915+
81916+const struct file_operations grsec_fops = {
81917+ .read = read_learn,
81918+ .write = write_grsec_handler,
81919+ .open = open_learn,
81920+ .release = close_learn,
81921+ .poll = poll_learn,
81922+};
81923diff --git a/grsecurity/gracl_policy.c b/grsecurity/gracl_policy.c
81924new file mode 100644
81925index 0000000..fd26052
81926--- /dev/null
81927+++ b/grsecurity/gracl_policy.c
81928@@ -0,0 +1,1781 @@
81929+#include <linux/kernel.h>
81930+#include <linux/module.h>
81931+#include <linux/sched.h>
81932+#include <linux/mm.h>
81933+#include <linux/file.h>
81934+#include <linux/fs.h>
81935+#include <linux/namei.h>
81936+#include <linux/mount.h>
81937+#include <linux/tty.h>
81938+#include <linux/proc_fs.h>
81939+#include <linux/lglock.h>
81940+#include <linux/slab.h>
81941+#include <linux/vmalloc.h>
81942+#include <linux/types.h>
81943+#include <linux/sysctl.h>
81944+#include <linux/netdevice.h>
81945+#include <linux/ptrace.h>
81946+#include <linux/gracl.h>
81947+#include <linux/gralloc.h>
81948+#include <linux/security.h>
81949+#include <linux/grinternal.h>
81950+#include <linux/pid_namespace.h>
81951+#include <linux/stop_machine.h>
81952+#include <linux/fdtable.h>
81953+#include <linux/percpu.h>
81954+#include <linux/lglock.h>
81955+#include <linux/hugetlb.h>
81956+#include <linux/posix-timers.h>
81957+#include "../fs/mount.h"
81958+
81959+#include <asm/uaccess.h>
81960+#include <asm/errno.h>
81961+#include <asm/mman.h>
81962+
81963+extern struct gr_policy_state *polstate;
81964+
81965+#define FOR_EACH_ROLE_START(role) \
81966+ role = polstate->role_list; \
81967+ while (role) {
81968+
81969+#define FOR_EACH_ROLE_END(role) \
81970+ role = role->prev; \
81971+ }
81972+
81973+struct path gr_real_root;
81974+
81975+extern struct gr_alloc_state *current_alloc_state;
81976+
81977+u16 acl_sp_role_value;
81978+
81979+static DEFINE_MUTEX(gr_dev_mutex);
81980+
81981+extern int chkpw(struct gr_arg *entry, unsigned char *salt, unsigned char *sum);
81982+extern void gr_clear_learn_entries(void);
81983+
81984+struct gr_arg *gr_usermode __read_only;
81985+unsigned char *gr_system_salt __read_only;
81986+unsigned char *gr_system_sum __read_only;
81987+
81988+static unsigned int gr_auth_attempts = 0;
81989+static unsigned long gr_auth_expires = 0UL;
81990+
81991+struct acl_object_label *fakefs_obj_rw;
81992+struct acl_object_label *fakefs_obj_rwx;
81993+
81994+extern int gr_init_uidset(void);
81995+extern void gr_free_uidset(void);
81996+extern void gr_remove_uid(uid_t uid);
81997+extern int gr_find_uid(uid_t uid);
81998+
81999+extern struct acl_subject_label *__gr_get_subject_for_task(const struct gr_policy_state *state, struct task_struct *task, const char *filename, int fallback);
82000+extern void __gr_apply_subject_to_task(struct gr_policy_state *state, struct task_struct *task, struct acl_subject_label *subj);
82001+extern int gr_streq(const char *a, const char *b, const unsigned int lena, const unsigned int lenb);
82002+extern void __insert_inodev_entry(const struct gr_policy_state *state, struct inodev_entry *entry);
82003+extern struct acl_role_label *__lookup_acl_role_label(const struct gr_policy_state *state, const struct task_struct *task, const uid_t uid, const gid_t gid);
82004+extern void insert_acl_obj_label(struct acl_object_label *obj, struct acl_subject_label *subj);
82005+extern void insert_acl_subj_label(struct acl_subject_label *obj, struct acl_role_label *role);
82006+extern struct name_entry * __lookup_name_entry(const struct gr_policy_state *state, const char *name);
82007+extern char *gr_to_filename_rbac(const struct dentry *dentry, const struct vfsmount *mnt);
82008+extern struct acl_subject_label *lookup_acl_subj_label(const u64 ino, const dev_t dev, const struct acl_role_label *role);
82009+extern struct acl_subject_label *lookup_acl_subj_label_deleted(const u64 ino, const dev_t dev, const struct acl_role_label *role);
82010+extern void assign_special_role(const char *rolename);
82011+extern struct acl_subject_label *chk_subj_label(const struct dentry *l_dentry, const struct vfsmount *l_mnt, const struct acl_role_label *role);
82012+extern int gr_rbac_disable(void *unused);
82013+extern void gr_enable_rbac_system(void);
82014+
82015+static int copy_acl_object_label_normal(struct acl_object_label *obj, const struct acl_object_label *userp)
82016+{
82017+ if (copy_from_user(obj, userp, sizeof(struct acl_object_label)))
82018+ return -EFAULT;
82019+
82020+ return 0;
82021+}
82022+
82023+static int copy_acl_ip_label_normal(struct acl_ip_label *ip, const struct acl_ip_label *userp)
82024+{
82025+ if (copy_from_user(ip, userp, sizeof(struct acl_ip_label)))
82026+ return -EFAULT;
82027+
82028+ return 0;
82029+}
82030+
82031+static int copy_acl_subject_label_normal(struct acl_subject_label *subj, const struct acl_subject_label *userp)
82032+{
82033+ if (copy_from_user(subj, userp, sizeof(struct acl_subject_label)))
82034+ return -EFAULT;
82035+
82036+ return 0;
82037+}
82038+
82039+static int copy_acl_role_label_normal(struct acl_role_label *role, const struct acl_role_label *userp)
82040+{
82041+ if (copy_from_user(role, userp, sizeof(struct acl_role_label)))
82042+ return -EFAULT;
82043+
82044+ return 0;
82045+}
82046+
82047+static int copy_role_allowed_ip_normal(struct role_allowed_ip *roleip, const struct role_allowed_ip *userp)
82048+{
82049+ if (copy_from_user(roleip, userp, sizeof(struct role_allowed_ip)))
82050+ return -EFAULT;
82051+
82052+ return 0;
82053+}
82054+
82055+static int copy_sprole_pw_normal(struct sprole_pw *pw, unsigned long idx, const struct sprole_pw *userp)
82056+{
82057+ if (copy_from_user(pw, userp + idx, sizeof(struct sprole_pw)))
82058+ return -EFAULT;
82059+
82060+ return 0;
82061+}
82062+
82063+static int copy_gr_hash_struct_normal(struct gr_hash_struct *hash, const struct gr_hash_struct *userp)
82064+{
82065+ if (copy_from_user(hash, userp, sizeof(struct gr_hash_struct)))
82066+ return -EFAULT;
82067+
82068+ return 0;
82069+}
82070+
82071+static int copy_role_transition_normal(struct role_transition *trans, const struct role_transition *userp)
82072+{
82073+ if (copy_from_user(trans, userp, sizeof(struct role_transition)))
82074+ return -EFAULT;
82075+
82076+ return 0;
82077+}
82078+
82079+int copy_pointer_from_array_normal(void *ptr, unsigned long idx, const void *userp)
82080+{
82081+ if (copy_from_user(ptr, userp + (idx * sizeof(void *)), sizeof(void *)))
82082+ return -EFAULT;
82083+
82084+ return 0;
82085+}
82086+
82087+static int copy_gr_arg_wrapper_normal(const char __user *buf, struct gr_arg_wrapper *uwrap)
82088+{
82089+ if (copy_from_user(uwrap, buf, sizeof (struct gr_arg_wrapper)))
82090+ return -EFAULT;
82091+
82092+ if ((uwrap->version != GRSECURITY_VERSION) ||
82093+ (uwrap->size != sizeof(struct gr_arg)))
82094+ return -EINVAL;
82095+
82096+ return 0;
82097+}
82098+
82099+static int copy_gr_arg_normal(const struct gr_arg __user *buf, struct gr_arg *arg)
82100+{
82101+ if (copy_from_user(arg, buf, sizeof (struct gr_arg)))
82102+ return -EFAULT;
82103+
82104+ return 0;
82105+}
82106+
82107+static size_t get_gr_arg_wrapper_size_normal(void)
82108+{
82109+ return sizeof(struct gr_arg_wrapper);
82110+}
82111+
82112+#ifdef CONFIG_COMPAT
82113+extern int copy_gr_arg_wrapper_compat(const char *buf, struct gr_arg_wrapper *uwrap);
82114+extern int copy_gr_arg_compat(const struct gr_arg __user *buf, struct gr_arg *arg);
82115+extern int copy_acl_object_label_compat(struct acl_object_label *obj, const struct acl_object_label *userp);
82116+extern int copy_acl_subject_label_compat(struct acl_subject_label *subj, const struct acl_subject_label *userp);
82117+extern int copy_acl_role_label_compat(struct acl_role_label *role, const struct acl_role_label *userp);
82118+extern int copy_role_allowed_ip_compat(struct role_allowed_ip *roleip, const struct role_allowed_ip *userp);
82119+extern int copy_role_transition_compat(struct role_transition *trans, const struct role_transition *userp);
82120+extern int copy_gr_hash_struct_compat(struct gr_hash_struct *hash, const struct gr_hash_struct *userp);
82121+extern int copy_pointer_from_array_compat(void *ptr, unsigned long idx, const void *userp);
82122+extern int copy_acl_ip_label_compat(struct acl_ip_label *ip, const struct acl_ip_label *userp);
82123+extern int copy_sprole_pw_compat(struct sprole_pw *pw, unsigned long idx, const struct sprole_pw *userp);
82124+extern size_t get_gr_arg_wrapper_size_compat(void);
82125+
82126+int (* copy_gr_arg_wrapper)(const char *buf, struct gr_arg_wrapper *uwrap) __read_only;
82127+int (* copy_gr_arg)(const struct gr_arg *buf, struct gr_arg *arg) __read_only;
82128+int (* copy_acl_object_label)(struct acl_object_label *obj, const struct acl_object_label *userp) __read_only;
82129+int (* copy_acl_subject_label)(struct acl_subject_label *subj, const struct acl_subject_label *userp) __read_only;
82130+int (* copy_acl_role_label)(struct acl_role_label *role, const struct acl_role_label *userp) __read_only;
82131+int (* copy_acl_ip_label)(struct acl_ip_label *ip, const struct acl_ip_label *userp) __read_only;
82132+int (* copy_pointer_from_array)(void *ptr, unsigned long idx, const void *userp) __read_only;
82133+int (* copy_sprole_pw)(struct sprole_pw *pw, unsigned long idx, const struct sprole_pw *userp) __read_only;
82134+int (* copy_gr_hash_struct)(struct gr_hash_struct *hash, const struct gr_hash_struct *userp) __read_only;
82135+int (* copy_role_transition)(struct role_transition *trans, const struct role_transition *userp) __read_only;
82136+int (* copy_role_allowed_ip)(struct role_allowed_ip *roleip, const struct role_allowed_ip *userp) __read_only;
82137+size_t (* get_gr_arg_wrapper_size)(void) __read_only;
82138+
82139+#else
82140+#define copy_gr_arg_wrapper copy_gr_arg_wrapper_normal
82141+#define copy_gr_arg copy_gr_arg_normal
82142+#define copy_gr_hash_struct copy_gr_hash_struct_normal
82143+#define copy_acl_object_label copy_acl_object_label_normal
82144+#define copy_acl_subject_label copy_acl_subject_label_normal
82145+#define copy_acl_role_label copy_acl_role_label_normal
82146+#define copy_acl_ip_label copy_acl_ip_label_normal
82147+#define copy_pointer_from_array copy_pointer_from_array_normal
82148+#define copy_sprole_pw copy_sprole_pw_normal
82149+#define copy_role_transition copy_role_transition_normal
82150+#define copy_role_allowed_ip copy_role_allowed_ip_normal
82151+#define get_gr_arg_wrapper_size get_gr_arg_wrapper_size_normal
82152+#endif
82153+
82154+static struct acl_subject_label *
82155+lookup_subject_map(const struct acl_subject_label *userp)
82156+{
82157+ unsigned int index = gr_shash(userp, polstate->subj_map_set.s_size);
82158+ struct subject_map *match;
82159+
82160+ match = polstate->subj_map_set.s_hash[index];
82161+
82162+ while (match && match->user != userp)
82163+ match = match->next;
82164+
82165+ if (match != NULL)
82166+ return match->kernel;
82167+ else
82168+ return NULL;
82169+}
82170+
82171+static void
82172+insert_subj_map_entry(struct subject_map *subjmap)
82173+{
82174+ unsigned int index = gr_shash(subjmap->user, polstate->subj_map_set.s_size);
82175+ struct subject_map **curr;
82176+
82177+ subjmap->prev = NULL;
82178+
82179+ curr = &polstate->subj_map_set.s_hash[index];
82180+ if (*curr != NULL)
82181+ (*curr)->prev = subjmap;
82182+
82183+ subjmap->next = *curr;
82184+ *curr = subjmap;
82185+
82186+ return;
82187+}
82188+
82189+static void
82190+__insert_acl_role_label(struct acl_role_label *role, uid_t uidgid)
82191+{
82192+ unsigned int index =
82193+ gr_rhash(uidgid, role->roletype & (GR_ROLE_USER | GR_ROLE_GROUP), polstate->acl_role_set.r_size);
82194+ struct acl_role_label **curr;
82195+ struct acl_role_label *tmp, *tmp2;
82196+
82197+ curr = &polstate->acl_role_set.r_hash[index];
82198+
82199+ /* simple case, slot is empty, just set it to our role */
82200+ if (*curr == NULL) {
82201+ *curr = role;
82202+ } else {
82203+ /* example:
82204+ 1 -> 2 -> 3 (adding 2 -> 3 to here)
82205+ 2 -> 3
82206+ */
82207+ /* first check to see if we can already be reached via this slot */
82208+ tmp = *curr;
82209+ while (tmp && tmp != role)
82210+ tmp = tmp->next;
82211+ if (tmp == role) {
82212+ /* we don't need to add ourselves to this slot's chain */
82213+ return;
82214+ }
82215+ /* we need to add ourselves to this chain, two cases */
82216+ if (role->next == NULL) {
82217+ /* simple case, append the current chain to our role */
82218+ role->next = *curr;
82219+ *curr = role;
82220+ } else {
82221+ /* 1 -> 2 -> 3 -> 4
82222+ 2 -> 3 -> 4
82223+ 3 -> 4 (adding 1 -> 2 -> 3 -> 4 to here)
82224+ */
82225+ /* trickier case: walk our role's chain until we find
82226+ the role for the start of the current slot's chain */
82227+ tmp = role;
82228+ tmp2 = *curr;
82229+ while (tmp->next && tmp->next != tmp2)
82230+ tmp = tmp->next;
82231+ if (tmp->next == tmp2) {
82232+ /* from example above, we found 3, so just
82233+ replace this slot's chain with ours */
82234+ *curr = role;
82235+ } else {
82236+ /* we didn't find a subset of our role's chain
82237+ in the current slot's chain, so append their
82238+ chain to ours, and set us as the first role in
82239+ the slot's chain
82240+
82241+ we could fold this case with the case above,
82242+ but making it explicit for clarity
82243+ */
82244+ tmp->next = tmp2;
82245+ *curr = role;
82246+ }
82247+ }
82248+ }
82249+
82250+ return;
82251+}
82252+
82253+static void
82254+insert_acl_role_label(struct acl_role_label *role)
82255+{
82256+ int i;
82257+
82258+ if (polstate->role_list == NULL) {
82259+ polstate->role_list = role;
82260+ role->prev = NULL;
82261+ } else {
82262+ role->prev = polstate->role_list;
82263+ polstate->role_list = role;
82264+ }
82265+
82266+ /* used for hash chains */
82267+ role->next = NULL;
82268+
82269+ if (role->roletype & GR_ROLE_DOMAIN) {
82270+ for (i = 0; i < role->domain_child_num; i++)
82271+ __insert_acl_role_label(role, role->domain_children[i]);
82272+ } else
82273+ __insert_acl_role_label(role, role->uidgid);
82274+}
82275+
82276+static int
82277+insert_name_entry(char *name, const u64 inode, const dev_t device, __u8 deleted)
82278+{
82279+ struct name_entry **curr, *nentry;
82280+ struct inodev_entry *ientry;
82281+ unsigned int len = strlen(name);
82282+ unsigned int key = full_name_hash(name, len);
82283+ unsigned int index = key % polstate->name_set.n_size;
82284+
82285+ curr = &polstate->name_set.n_hash[index];
82286+
82287+ while (*curr && ((*curr)->key != key || !gr_streq((*curr)->name, name, (*curr)->len, len)))
82288+ curr = &((*curr)->next);
82289+
82290+ if (*curr != NULL)
82291+ return 1;
82292+
82293+ nentry = acl_alloc(sizeof (struct name_entry));
82294+ if (nentry == NULL)
82295+ return 0;
82296+ ientry = acl_alloc(sizeof (struct inodev_entry));
82297+ if (ientry == NULL)
82298+ return 0;
82299+ ientry->nentry = nentry;
82300+
82301+ nentry->key = key;
82302+ nentry->name = name;
82303+ nentry->inode = inode;
82304+ nentry->device = device;
82305+ nentry->len = len;
82306+ nentry->deleted = deleted;
82307+
82308+ nentry->prev = NULL;
82309+ curr = &polstate->name_set.n_hash[index];
82310+ if (*curr != NULL)
82311+ (*curr)->prev = nentry;
82312+ nentry->next = *curr;
82313+ *curr = nentry;
82314+
82315+ /* insert us into the table searchable by inode/dev */
82316+ __insert_inodev_entry(polstate, ientry);
82317+
82318+ return 1;
82319+}
82320+
82321+/* allocating chained hash tables, so optimal size is where lambda ~ 1 */
82322+
82323+static void *
82324+create_table(__u32 * len, int elementsize)
82325+{
82326+ unsigned int table_sizes[] = {
82327+ 7, 13, 31, 61, 127, 251, 509, 1021, 2039, 4093, 8191, 16381,
82328+ 32749, 65521, 131071, 262139, 524287, 1048573, 2097143,
82329+ 4194301, 8388593, 16777213, 33554393, 67108859
82330+ };
82331+ void *newtable = NULL;
82332+ unsigned int pwr = 0;
82333+
82334+ while ((pwr < ((sizeof (table_sizes) / sizeof (table_sizes[0])) - 1)) &&
82335+ table_sizes[pwr] <= *len)
82336+ pwr++;
82337+
82338+ if (table_sizes[pwr] <= *len || (table_sizes[pwr] > ULONG_MAX / elementsize))
82339+ return newtable;
82340+
82341+ if ((table_sizes[pwr] * elementsize) <= PAGE_SIZE)
82342+ newtable =
82343+ kmalloc(table_sizes[pwr] * elementsize, GFP_KERNEL);
82344+ else
82345+ newtable = vmalloc(table_sizes[pwr] * elementsize);
82346+
82347+ *len = table_sizes[pwr];
82348+
82349+ return newtable;
82350+}
82351+
82352+static int
82353+init_variables(const struct gr_arg *arg, bool reload)
82354+{
82355+ struct task_struct *reaper = init_pid_ns.child_reaper;
82356+ unsigned int stacksize;
82357+
82358+ polstate->subj_map_set.s_size = arg->role_db.num_subjects;
82359+ polstate->acl_role_set.r_size = arg->role_db.num_roles + arg->role_db.num_domain_children;
82360+ polstate->name_set.n_size = arg->role_db.num_objects;
82361+ polstate->inodev_set.i_size = arg->role_db.num_objects;
82362+
82363+ if (!polstate->subj_map_set.s_size || !polstate->acl_role_set.r_size ||
82364+ !polstate->name_set.n_size || !polstate->inodev_set.i_size)
82365+ return 1;
82366+
82367+ if (!reload) {
82368+ if (!gr_init_uidset())
82369+ return 1;
82370+ }
82371+
82372+ /* set up the stack that holds allocation info */
82373+
82374+ stacksize = arg->role_db.num_pointers + 5;
82375+
82376+ if (!acl_alloc_stack_init(stacksize))
82377+ return 1;
82378+
82379+ if (!reload) {
82380+ /* grab reference for the real root dentry and vfsmount */
82381+ get_fs_root(reaper->fs, &gr_real_root);
82382+
82383+#ifdef CONFIG_GRKERNSEC_RBAC_DEBUG
82384+ printk(KERN_ALERT "Obtained real root device=%d, inode=%lu\n", __get_dev(gr_real_root.dentry), gr_real_root.dentry->d_inode->i_ino);
82385+#endif
82386+
82387+ fakefs_obj_rw = kzalloc(sizeof(struct acl_object_label), GFP_KERNEL);
82388+ if (fakefs_obj_rw == NULL)
82389+ return 1;
82390+ fakefs_obj_rw->mode = GR_FIND | GR_READ | GR_WRITE;
82391+
82392+ fakefs_obj_rwx = kzalloc(sizeof(struct acl_object_label), GFP_KERNEL);
82393+ if (fakefs_obj_rwx == NULL)
82394+ return 1;
82395+ fakefs_obj_rwx->mode = GR_FIND | GR_READ | GR_WRITE | GR_EXEC;
82396+ }
82397+
82398+ polstate->subj_map_set.s_hash =
82399+ (struct subject_map **) create_table(&polstate->subj_map_set.s_size, sizeof(void *));
82400+ polstate->acl_role_set.r_hash =
82401+ (struct acl_role_label **) create_table(&polstate->acl_role_set.r_size, sizeof(void *));
82402+ polstate->name_set.n_hash = (struct name_entry **) create_table(&polstate->name_set.n_size, sizeof(void *));
82403+ polstate->inodev_set.i_hash =
82404+ (struct inodev_entry **) create_table(&polstate->inodev_set.i_size, sizeof(void *));
82405+
82406+ if (!polstate->subj_map_set.s_hash || !polstate->acl_role_set.r_hash ||
82407+ !polstate->name_set.n_hash || !polstate->inodev_set.i_hash)
82408+ return 1;
82409+
82410+ memset(polstate->subj_map_set.s_hash, 0,
82411+ sizeof(struct subject_map *) * polstate->subj_map_set.s_size);
82412+ memset(polstate->acl_role_set.r_hash, 0,
82413+ sizeof (struct acl_role_label *) * polstate->acl_role_set.r_size);
82414+ memset(polstate->name_set.n_hash, 0,
82415+ sizeof (struct name_entry *) * polstate->name_set.n_size);
82416+ memset(polstate->inodev_set.i_hash, 0,
82417+ sizeof (struct inodev_entry *) * polstate->inodev_set.i_size);
82418+
82419+ return 0;
82420+}
82421+
82422+/* free information not needed after startup
82423+ currently contains user->kernel pointer mappings for subjects
82424+*/
82425+
82426+static void
82427+free_init_variables(void)
82428+{
82429+ __u32 i;
82430+
82431+ if (polstate->subj_map_set.s_hash) {
82432+ for (i = 0; i < polstate->subj_map_set.s_size; i++) {
82433+ if (polstate->subj_map_set.s_hash[i]) {
82434+ kfree(polstate->subj_map_set.s_hash[i]);
82435+ polstate->subj_map_set.s_hash[i] = NULL;
82436+ }
82437+ }
82438+
82439+ if ((polstate->subj_map_set.s_size * sizeof (struct subject_map *)) <=
82440+ PAGE_SIZE)
82441+ kfree(polstate->subj_map_set.s_hash);
82442+ else
82443+ vfree(polstate->subj_map_set.s_hash);
82444+ }
82445+
82446+ return;
82447+}
82448+
82449+static void
82450+free_variables(bool reload)
82451+{
82452+ struct acl_subject_label *s;
82453+ struct acl_role_label *r;
82454+ struct task_struct *task, *task2;
82455+ unsigned int x;
82456+
82457+ if (!reload) {
82458+ gr_clear_learn_entries();
82459+
82460+ read_lock(&tasklist_lock);
82461+ do_each_thread(task2, task) {
82462+ task->acl_sp_role = 0;
82463+ task->acl_role_id = 0;
82464+ task->inherited = 0;
82465+ task->acl = NULL;
82466+ task->role = NULL;
82467+ } while_each_thread(task2, task);
82468+ read_unlock(&tasklist_lock);
82469+
82470+ kfree(fakefs_obj_rw);
82471+ fakefs_obj_rw = NULL;
82472+ kfree(fakefs_obj_rwx);
82473+ fakefs_obj_rwx = NULL;
82474+
82475+ /* release the reference to the real root dentry and vfsmount */
82476+ path_put(&gr_real_root);
82477+ memset(&gr_real_root, 0, sizeof(gr_real_root));
82478+ }
82479+
82480+ /* free all object hash tables */
82481+
82482+ FOR_EACH_ROLE_START(r)
82483+ if (r->subj_hash == NULL)
82484+ goto next_role;
82485+ FOR_EACH_SUBJECT_START(r, s, x)
82486+ if (s->obj_hash == NULL)
82487+ break;
82488+ if ((s->obj_hash_size * sizeof (struct acl_object_label *)) <= PAGE_SIZE)
82489+ kfree(s->obj_hash);
82490+ else
82491+ vfree(s->obj_hash);
82492+ FOR_EACH_SUBJECT_END(s, x)
82493+ FOR_EACH_NESTED_SUBJECT_START(r, s)
82494+ if (s->obj_hash == NULL)
82495+ break;
82496+ if ((s->obj_hash_size * sizeof (struct acl_object_label *)) <= PAGE_SIZE)
82497+ kfree(s->obj_hash);
82498+ else
82499+ vfree(s->obj_hash);
82500+ FOR_EACH_NESTED_SUBJECT_END(s)
82501+ if ((r->subj_hash_size * sizeof (struct acl_subject_label *)) <= PAGE_SIZE)
82502+ kfree(r->subj_hash);
82503+ else
82504+ vfree(r->subj_hash);
82505+ r->subj_hash = NULL;
82506+next_role:
82507+ FOR_EACH_ROLE_END(r)
82508+
82509+ acl_free_all();
82510+
82511+ if (polstate->acl_role_set.r_hash) {
82512+ if ((polstate->acl_role_set.r_size * sizeof (struct acl_role_label *)) <=
82513+ PAGE_SIZE)
82514+ kfree(polstate->acl_role_set.r_hash);
82515+ else
82516+ vfree(polstate->acl_role_set.r_hash);
82517+ }
82518+ if (polstate->name_set.n_hash) {
82519+ if ((polstate->name_set.n_size * sizeof (struct name_entry *)) <=
82520+ PAGE_SIZE)
82521+ kfree(polstate->name_set.n_hash);
82522+ else
82523+ vfree(polstate->name_set.n_hash);
82524+ }
82525+
82526+ if (polstate->inodev_set.i_hash) {
82527+ if ((polstate->inodev_set.i_size * sizeof (struct inodev_entry *)) <=
82528+ PAGE_SIZE)
82529+ kfree(polstate->inodev_set.i_hash);
82530+ else
82531+ vfree(polstate->inodev_set.i_hash);
82532+ }
82533+
82534+ if (!reload)
82535+ gr_free_uidset();
82536+
82537+ memset(&polstate->name_set, 0, sizeof (struct name_db));
82538+ memset(&polstate->inodev_set, 0, sizeof (struct inodev_db));
82539+ memset(&polstate->acl_role_set, 0, sizeof (struct acl_role_db));
82540+ memset(&polstate->subj_map_set, 0, sizeof (struct acl_subj_map_db));
82541+
82542+ polstate->default_role = NULL;
82543+ polstate->kernel_role = NULL;
82544+ polstate->role_list = NULL;
82545+
82546+ return;
82547+}
82548+
82549+static struct acl_subject_label *
82550+do_copy_user_subj(struct acl_subject_label *userp, struct acl_role_label *role, int *already_copied);
82551+
82552+static int alloc_and_copy_string(char **name, unsigned int maxlen)
82553+{
82554+ unsigned int len = strnlen_user(*name, maxlen);
82555+ char *tmp;
82556+
82557+ if (!len || len >= maxlen)
82558+ return -EINVAL;
82559+
82560+ if ((tmp = (char *) acl_alloc(len)) == NULL)
82561+ return -ENOMEM;
82562+
82563+ if (copy_from_user(tmp, *name, len))
82564+ return -EFAULT;
82565+
82566+ tmp[len-1] = '\0';
82567+ *name = tmp;
82568+
82569+ return 0;
82570+}
82571+
82572+static int
82573+copy_user_glob(struct acl_object_label *obj)
82574+{
82575+ struct acl_object_label *g_tmp, **guser;
82576+ int error;
82577+
82578+ if (obj->globbed == NULL)
82579+ return 0;
82580+
82581+ guser = &obj->globbed;
82582+ while (*guser) {
82583+ g_tmp = (struct acl_object_label *)
82584+ acl_alloc(sizeof (struct acl_object_label));
82585+ if (g_tmp == NULL)
82586+ return -ENOMEM;
82587+
82588+ if (copy_acl_object_label(g_tmp, *guser))
82589+ return -EFAULT;
82590+
82591+ error = alloc_and_copy_string(&g_tmp->filename, PATH_MAX);
82592+ if (error)
82593+ return error;
82594+
82595+ *guser = g_tmp;
82596+ guser = &(g_tmp->next);
82597+ }
82598+
82599+ return 0;
82600+}
82601+
82602+static int
82603+copy_user_objs(struct acl_object_label *userp, struct acl_subject_label *subj,
82604+ struct acl_role_label *role)
82605+{
82606+ struct acl_object_label *o_tmp;
82607+ int ret;
82608+
82609+ while (userp) {
82610+ if ((o_tmp = (struct acl_object_label *)
82611+ acl_alloc(sizeof (struct acl_object_label))) == NULL)
82612+ return -ENOMEM;
82613+
82614+ if (copy_acl_object_label(o_tmp, userp))
82615+ return -EFAULT;
82616+
82617+ userp = o_tmp->prev;
82618+
82619+ ret = alloc_and_copy_string(&o_tmp->filename, PATH_MAX);
82620+ if (ret)
82621+ return ret;
82622+
82623+ insert_acl_obj_label(o_tmp, subj);
82624+ if (!insert_name_entry(o_tmp->filename, o_tmp->inode,
82625+ o_tmp->device, (o_tmp->mode & GR_DELETED) ? 1 : 0))
82626+ return -ENOMEM;
82627+
82628+ ret = copy_user_glob(o_tmp);
82629+ if (ret)
82630+ return ret;
82631+
82632+ if (o_tmp->nested) {
82633+ int already_copied;
82634+
82635+ o_tmp->nested = do_copy_user_subj(o_tmp->nested, role, &already_copied);
82636+ if (IS_ERR(o_tmp->nested))
82637+ return PTR_ERR(o_tmp->nested);
82638+
82639+ /* insert into nested subject list if we haven't copied this one yet
82640+ to prevent duplicate entries */
82641+ if (!already_copied) {
82642+ o_tmp->nested->next = role->hash->first;
82643+ role->hash->first = o_tmp->nested;
82644+ }
82645+ }
82646+ }
82647+
82648+ return 0;
82649+}
82650+
82651+static __u32
82652+count_user_subjs(struct acl_subject_label *userp)
82653+{
82654+ struct acl_subject_label s_tmp;
82655+ __u32 num = 0;
82656+
82657+ while (userp) {
82658+ if (copy_acl_subject_label(&s_tmp, userp))
82659+ break;
82660+
82661+ userp = s_tmp.prev;
82662+ }
82663+
82664+ return num;
82665+}
82666+
82667+static int
82668+copy_user_allowedips(struct acl_role_label *rolep)
82669+{
82670+ struct role_allowed_ip *ruserip, *rtmp = NULL, *rlast;
82671+
82672+ ruserip = rolep->allowed_ips;
82673+
82674+ while (ruserip) {
82675+ rlast = rtmp;
82676+
82677+ if ((rtmp = (struct role_allowed_ip *)
82678+ acl_alloc(sizeof (struct role_allowed_ip))) == NULL)
82679+ return -ENOMEM;
82680+
82681+ if (copy_role_allowed_ip(rtmp, ruserip))
82682+ return -EFAULT;
82683+
82684+ ruserip = rtmp->prev;
82685+
82686+ if (!rlast) {
82687+ rtmp->prev = NULL;
82688+ rolep->allowed_ips = rtmp;
82689+ } else {
82690+ rlast->next = rtmp;
82691+ rtmp->prev = rlast;
82692+ }
82693+
82694+ if (!ruserip)
82695+ rtmp->next = NULL;
82696+ }
82697+
82698+ return 0;
82699+}
82700+
82701+static int
82702+copy_user_transitions(struct acl_role_label *rolep)
82703+{
82704+ struct role_transition *rusertp, *rtmp = NULL, *rlast;
82705+ int error;
82706+
82707+ rusertp = rolep->transitions;
82708+
82709+ while (rusertp) {
82710+ rlast = rtmp;
82711+
82712+ if ((rtmp = (struct role_transition *)
82713+ acl_alloc(sizeof (struct role_transition))) == NULL)
82714+ return -ENOMEM;
82715+
82716+ if (copy_role_transition(rtmp, rusertp))
82717+ return -EFAULT;
82718+
82719+ rusertp = rtmp->prev;
82720+
82721+ error = alloc_and_copy_string(&rtmp->rolename, GR_SPROLE_LEN);
82722+ if (error)
82723+ return error;
82724+
82725+ if (!rlast) {
82726+ rtmp->prev = NULL;
82727+ rolep->transitions = rtmp;
82728+ } else {
82729+ rlast->next = rtmp;
82730+ rtmp->prev = rlast;
82731+ }
82732+
82733+ if (!rusertp)
82734+ rtmp->next = NULL;
82735+ }
82736+
82737+ return 0;
82738+}
82739+
82740+static __u32 count_user_objs(const struct acl_object_label __user *userp)
82741+{
82742+ struct acl_object_label o_tmp;
82743+ __u32 num = 0;
82744+
82745+ while (userp) {
82746+ if (copy_acl_object_label(&o_tmp, userp))
82747+ break;
82748+
82749+ userp = o_tmp.prev;
82750+ num++;
82751+ }
82752+
82753+ return num;
82754+}
82755+
82756+static struct acl_subject_label *
82757+do_copy_user_subj(struct acl_subject_label *userp, struct acl_role_label *role, int *already_copied)
82758+{
82759+ struct acl_subject_label *s_tmp = NULL, *s_tmp2;
82760+ __u32 num_objs;
82761+ struct acl_ip_label **i_tmp, *i_utmp2;
82762+ struct gr_hash_struct ghash;
82763+ struct subject_map *subjmap;
82764+ unsigned int i_num;
82765+ int err;
82766+
82767+ if (already_copied != NULL)
82768+ *already_copied = 0;
82769+
82770+ s_tmp = lookup_subject_map(userp);
82771+
82772+ /* we've already copied this subject into the kernel, just return
82773+ the reference to it, and don't copy it over again
82774+ */
82775+ if (s_tmp) {
82776+ if (already_copied != NULL)
82777+ *already_copied = 1;
82778+ return(s_tmp);
82779+ }
82780+
82781+ if ((s_tmp = (struct acl_subject_label *)
82782+ acl_alloc(sizeof (struct acl_subject_label))) == NULL)
82783+ return ERR_PTR(-ENOMEM);
82784+
82785+ subjmap = (struct subject_map *)kmalloc(sizeof (struct subject_map), GFP_KERNEL);
82786+ if (subjmap == NULL)
82787+ return ERR_PTR(-ENOMEM);
82788+
82789+ subjmap->user = userp;
82790+ subjmap->kernel = s_tmp;
82791+ insert_subj_map_entry(subjmap);
82792+
82793+ if (copy_acl_subject_label(s_tmp, userp))
82794+ return ERR_PTR(-EFAULT);
82795+
82796+ err = alloc_and_copy_string(&s_tmp->filename, PATH_MAX);
82797+ if (err)
82798+ return ERR_PTR(err);
82799+
82800+ if (!strcmp(s_tmp->filename, "/"))
82801+ role->root_label = s_tmp;
82802+
82803+ if (copy_gr_hash_struct(&ghash, s_tmp->hash))
82804+ return ERR_PTR(-EFAULT);
82805+
82806+ /* copy user and group transition tables */
82807+
82808+ if (s_tmp->user_trans_num) {
82809+ uid_t *uidlist;
82810+
82811+ uidlist = (uid_t *)acl_alloc_num(s_tmp->user_trans_num, sizeof(uid_t));
82812+ if (uidlist == NULL)
82813+ return ERR_PTR(-ENOMEM);
82814+ if (copy_from_user(uidlist, s_tmp->user_transitions, s_tmp->user_trans_num * sizeof(uid_t)))
82815+ return ERR_PTR(-EFAULT);
82816+
82817+ s_tmp->user_transitions = uidlist;
82818+ }
82819+
82820+ if (s_tmp->group_trans_num) {
82821+ gid_t *gidlist;
82822+
82823+ gidlist = (gid_t *)acl_alloc_num(s_tmp->group_trans_num, sizeof(gid_t));
82824+ if (gidlist == NULL)
82825+ return ERR_PTR(-ENOMEM);
82826+ if (copy_from_user(gidlist, s_tmp->group_transitions, s_tmp->group_trans_num * sizeof(gid_t)))
82827+ return ERR_PTR(-EFAULT);
82828+
82829+ s_tmp->group_transitions = gidlist;
82830+ }
82831+
82832+ /* set up object hash table */
82833+ num_objs = count_user_objs(ghash.first);
82834+
82835+ s_tmp->obj_hash_size = num_objs;
82836+ s_tmp->obj_hash =
82837+ (struct acl_object_label **)
82838+ create_table(&(s_tmp->obj_hash_size), sizeof(void *));
82839+
82840+ if (!s_tmp->obj_hash)
82841+ return ERR_PTR(-ENOMEM);
82842+
82843+ memset(s_tmp->obj_hash, 0,
82844+ s_tmp->obj_hash_size *
82845+ sizeof (struct acl_object_label *));
82846+
82847+ /* add in objects */
82848+ err = copy_user_objs(ghash.first, s_tmp, role);
82849+
82850+ if (err)
82851+ return ERR_PTR(err);
82852+
82853+ /* set pointer for parent subject */
82854+ if (s_tmp->parent_subject) {
82855+ s_tmp2 = do_copy_user_subj(s_tmp->parent_subject, role, NULL);
82856+
82857+ if (IS_ERR(s_tmp2))
82858+ return s_tmp2;
82859+
82860+ s_tmp->parent_subject = s_tmp2;
82861+ }
82862+
82863+ /* add in ip acls */
82864+
82865+ if (!s_tmp->ip_num) {
82866+ s_tmp->ips = NULL;
82867+ goto insert;
82868+ }
82869+
82870+ i_tmp =
82871+ (struct acl_ip_label **) acl_alloc_num(s_tmp->ip_num,
82872+ sizeof (struct acl_ip_label *));
82873+
82874+ if (!i_tmp)
82875+ return ERR_PTR(-ENOMEM);
82876+
82877+ for (i_num = 0; i_num < s_tmp->ip_num; i_num++) {
82878+ *(i_tmp + i_num) =
82879+ (struct acl_ip_label *)
82880+ acl_alloc(sizeof (struct acl_ip_label));
82881+ if (!*(i_tmp + i_num))
82882+ return ERR_PTR(-ENOMEM);
82883+
82884+ if (copy_pointer_from_array(&i_utmp2, i_num, s_tmp->ips))
82885+ return ERR_PTR(-EFAULT);
82886+
82887+ if (copy_acl_ip_label(*(i_tmp + i_num), i_utmp2))
82888+ return ERR_PTR(-EFAULT);
82889+
82890+ if ((*(i_tmp + i_num))->iface == NULL)
82891+ continue;
82892+
82893+ err = alloc_and_copy_string(&(*(i_tmp + i_num))->iface, IFNAMSIZ);
82894+ if (err)
82895+ return ERR_PTR(err);
82896+ }
82897+
82898+ s_tmp->ips = i_tmp;
82899+
82900+insert:
82901+ if (!insert_name_entry(s_tmp->filename, s_tmp->inode,
82902+ s_tmp->device, (s_tmp->mode & GR_DELETED) ? 1 : 0))
82903+ return ERR_PTR(-ENOMEM);
82904+
82905+ return s_tmp;
82906+}
82907+
82908+static int
82909+copy_user_subjs(struct acl_subject_label *userp, struct acl_role_label *role)
82910+{
82911+ struct acl_subject_label s_pre;
82912+ struct acl_subject_label * ret;
82913+ int err;
82914+
82915+ while (userp) {
82916+ if (copy_acl_subject_label(&s_pre, userp))
82917+ return -EFAULT;
82918+
82919+ ret = do_copy_user_subj(userp, role, NULL);
82920+
82921+ err = PTR_ERR(ret);
82922+ if (IS_ERR(ret))
82923+ return err;
82924+
82925+ insert_acl_subj_label(ret, role);
82926+
82927+ userp = s_pre.prev;
82928+ }
82929+
82930+ return 0;
82931+}
82932+
82933+static int
82934+copy_user_acl(struct gr_arg *arg)
82935+{
82936+ struct acl_role_label *r_tmp = NULL, **r_utmp, *r_utmp2;
82937+ struct acl_subject_label *subj_list;
82938+ struct sprole_pw *sptmp;
82939+ struct gr_hash_struct *ghash;
82940+ uid_t *domainlist;
82941+ unsigned int r_num;
82942+ int err = 0;
82943+ __u16 i;
82944+ __u32 num_subjs;
82945+
82946+ /* we need a default and kernel role */
82947+ if (arg->role_db.num_roles < 2)
82948+ return -EINVAL;
82949+
82950+ /* copy special role authentication info from userspace */
82951+
82952+ polstate->num_sprole_pws = arg->num_sprole_pws;
82953+ polstate->acl_special_roles = (struct sprole_pw **) acl_alloc_num(polstate->num_sprole_pws, sizeof(struct sprole_pw *));
82954+
82955+ if (!polstate->acl_special_roles && polstate->num_sprole_pws)
82956+ return -ENOMEM;
82957+
82958+ for (i = 0; i < polstate->num_sprole_pws; i++) {
82959+ sptmp = (struct sprole_pw *) acl_alloc(sizeof(struct sprole_pw));
82960+ if (!sptmp)
82961+ return -ENOMEM;
82962+ if (copy_sprole_pw(sptmp, i, arg->sprole_pws))
82963+ return -EFAULT;
82964+
82965+ err = alloc_and_copy_string((char **)&sptmp->rolename, GR_SPROLE_LEN);
82966+ if (err)
82967+ return err;
82968+
82969+#ifdef CONFIG_GRKERNSEC_RBAC_DEBUG
82970+ printk(KERN_ALERT "Copying special role %s\n", sptmp->rolename);
82971+#endif
82972+
82973+ polstate->acl_special_roles[i] = sptmp;
82974+ }
82975+
82976+ r_utmp = (struct acl_role_label **) arg->role_db.r_table;
82977+
82978+ for (r_num = 0; r_num < arg->role_db.num_roles; r_num++) {
82979+ r_tmp = acl_alloc(sizeof (struct acl_role_label));
82980+
82981+ if (!r_tmp)
82982+ return -ENOMEM;
82983+
82984+ if (copy_pointer_from_array(&r_utmp2, r_num, r_utmp))
82985+ return -EFAULT;
82986+
82987+ if (copy_acl_role_label(r_tmp, r_utmp2))
82988+ return -EFAULT;
82989+
82990+ err = alloc_and_copy_string(&r_tmp->rolename, GR_SPROLE_LEN);
82991+ if (err)
82992+ return err;
82993+
82994+ if (!strcmp(r_tmp->rolename, "default")
82995+ && (r_tmp->roletype & GR_ROLE_DEFAULT)) {
82996+ polstate->default_role = r_tmp;
82997+ } else if (!strcmp(r_tmp->rolename, ":::kernel:::")) {
82998+ polstate->kernel_role = r_tmp;
82999+ }
83000+
83001+ if ((ghash = (struct gr_hash_struct *) acl_alloc(sizeof(struct gr_hash_struct))) == NULL)
83002+ return -ENOMEM;
83003+
83004+ if (copy_gr_hash_struct(ghash, r_tmp->hash))
83005+ return -EFAULT;
83006+
83007+ r_tmp->hash = ghash;
83008+
83009+ num_subjs = count_user_subjs(r_tmp->hash->first);
83010+
83011+ r_tmp->subj_hash_size = num_subjs;
83012+ r_tmp->subj_hash =
83013+ (struct acl_subject_label **)
83014+ create_table(&(r_tmp->subj_hash_size), sizeof(void *));
83015+
83016+ if (!r_tmp->subj_hash)
83017+ return -ENOMEM;
83018+
83019+ err = copy_user_allowedips(r_tmp);
83020+ if (err)
83021+ return err;
83022+
83023+ /* copy domain info */
83024+ if (r_tmp->domain_children != NULL) {
83025+ domainlist = acl_alloc_num(r_tmp->domain_child_num, sizeof(uid_t));
83026+ if (domainlist == NULL)
83027+ return -ENOMEM;
83028+
83029+ if (copy_from_user(domainlist, r_tmp->domain_children, r_tmp->domain_child_num * sizeof(uid_t)))
83030+ return -EFAULT;
83031+
83032+ r_tmp->domain_children = domainlist;
83033+ }
83034+
83035+ err = copy_user_transitions(r_tmp);
83036+ if (err)
83037+ return err;
83038+
83039+ memset(r_tmp->subj_hash, 0,
83040+ r_tmp->subj_hash_size *
83041+ sizeof (struct acl_subject_label *));
83042+
83043+ /* acquire the list of subjects, then NULL out
83044+ the list prior to parsing the subjects for this role,
83045+ as during this parsing the list is replaced with a list
83046+ of *nested* subjects for the role
83047+ */
83048+ subj_list = r_tmp->hash->first;
83049+
83050+ /* set nested subject list to null */
83051+ r_tmp->hash->first = NULL;
83052+
83053+ err = copy_user_subjs(subj_list, r_tmp);
83054+
83055+ if (err)
83056+ return err;
83057+
83058+ insert_acl_role_label(r_tmp);
83059+ }
83060+
83061+ if (polstate->default_role == NULL || polstate->kernel_role == NULL)
83062+ return -EINVAL;
83063+
83064+ return err;
83065+}
83066+
83067+static int gracl_reload_apply_policies(void *reload)
83068+{
83069+ struct gr_reload_state *reload_state = (struct gr_reload_state *)reload;
83070+ struct task_struct *task, *task2;
83071+ struct acl_role_label *role, *rtmp;
83072+ struct acl_subject_label *subj;
83073+ const struct cred *cred;
83074+ int role_applied;
83075+ int ret = 0;
83076+
83077+ memcpy(&reload_state->oldpolicy, reload_state->oldpolicy_ptr, sizeof(struct gr_policy_state));
83078+ memcpy(&reload_state->oldalloc, reload_state->oldalloc_ptr, sizeof(struct gr_alloc_state));
83079+
83080+ /* first make sure we'll be able to apply the new policy cleanly */
83081+ do_each_thread(task2, task) {
83082+ if (task->exec_file == NULL)
83083+ continue;
83084+ role_applied = 0;
83085+ if (!reload_state->oldmode && task->role->roletype & GR_ROLE_SPECIAL) {
83086+ /* preserve special roles */
83087+ FOR_EACH_ROLE_START(role)
83088+ if ((role->roletype & GR_ROLE_SPECIAL) && !strcmp(task->role->rolename, role->rolename)) {
83089+ rtmp = task->role;
83090+ task->role = role;
83091+ role_applied = 1;
83092+ break;
83093+ }
83094+ FOR_EACH_ROLE_END(role)
83095+ }
83096+ if (!role_applied) {
83097+ cred = __task_cred(task);
83098+ rtmp = task->role;
83099+ task->role = __lookup_acl_role_label(polstate, task, GR_GLOBAL_UID(cred->uid), GR_GLOBAL_GID(cred->gid));
83100+ }
83101+ /* this handles non-nested inherited subjects, nested subjects will still
83102+ be dropped currently */
83103+ subj = __gr_get_subject_for_task(polstate, task, task->acl->filename, 1);
83104+ task->tmpacl = __gr_get_subject_for_task(polstate, task, NULL, 1);
83105+ /* change the role back so that we've made no modifications to the policy */
83106+ task->role = rtmp;
83107+
83108+ if (subj == NULL || task->tmpacl == NULL) {
83109+ ret = -EINVAL;
83110+ goto out;
83111+ }
83112+ } while_each_thread(task2, task);
83113+
83114+ /* now actually apply the policy */
83115+
83116+ do_each_thread(task2, task) {
83117+ if (task->exec_file) {
83118+ role_applied = 0;
83119+ if (!reload_state->oldmode && task->role->roletype & GR_ROLE_SPECIAL) {
83120+ /* preserve special roles */
83121+ FOR_EACH_ROLE_START(role)
83122+ if ((role->roletype & GR_ROLE_SPECIAL) && !strcmp(task->role->rolename, role->rolename)) {
83123+ task->role = role;
83124+ role_applied = 1;
83125+ break;
83126+ }
83127+ FOR_EACH_ROLE_END(role)
83128+ }
83129+ if (!role_applied) {
83130+ cred = __task_cred(task);
83131+ task->role = __lookup_acl_role_label(polstate, task, GR_GLOBAL_UID(cred->uid), GR_GLOBAL_GID(cred->gid));
83132+ }
83133+ /* this handles non-nested inherited subjects, nested subjects will still
83134+ be dropped currently */
83135+ if (!reload_state->oldmode && task->inherited)
83136+ subj = __gr_get_subject_for_task(polstate, task, task->acl->filename, 1);
83137+ else {
83138+ /* looked up and tagged to the task previously */
83139+ subj = task->tmpacl;
83140+ }
83141+ /* subj will be non-null */
83142+ __gr_apply_subject_to_task(polstate, task, subj);
83143+ if (reload_state->oldmode) {
83144+ task->acl_role_id = 0;
83145+ task->acl_sp_role = 0;
83146+ task->inherited = 0;
83147+ }
83148+ } else {
83149+ // it's a kernel process
83150+ task->role = polstate->kernel_role;
83151+ task->acl = polstate->kernel_role->root_label;
83152+#ifdef CONFIG_GRKERNSEC_ACL_HIDEKERN
83153+ task->acl->mode &= ~GR_PROCFIND;
83154+#endif
83155+ }
83156+ } while_each_thread(task2, task);
83157+
83158+ memcpy(reload_state->oldpolicy_ptr, &reload_state->newpolicy, sizeof(struct gr_policy_state));
83159+ memcpy(reload_state->oldalloc_ptr, &reload_state->newalloc, sizeof(struct gr_alloc_state));
83160+
83161+out:
83162+
83163+ return ret;
83164+}
83165+
83166+static int gracl_reload(struct gr_arg *args, unsigned char oldmode)
83167+{
83168+ struct gr_reload_state new_reload_state = { };
83169+ int err;
83170+
83171+ new_reload_state.oldpolicy_ptr = polstate;
83172+ new_reload_state.oldalloc_ptr = current_alloc_state;
83173+ new_reload_state.oldmode = oldmode;
83174+
83175+ current_alloc_state = &new_reload_state.newalloc;
83176+ polstate = &new_reload_state.newpolicy;
83177+
83178+ /* everything relevant is now saved off, copy in the new policy */
83179+ if (init_variables(args, true)) {
83180+ gr_log_str(GR_DONT_AUDIT_GOOD, GR_INITF_ACL_MSG, GR_VERSION);
83181+ err = -ENOMEM;
83182+ goto error;
83183+ }
83184+
83185+ err = copy_user_acl(args);
83186+ free_init_variables();
83187+ if (err)
83188+ goto error;
83189+ /* the new policy is copied in, with the old policy available via saved_state
83190+ first go through applying roles, making sure to preserve special roles
83191+ then apply new subjects, making sure to preserve inherited and nested subjects,
83192+ though currently only inherited subjects will be preserved
83193+ */
83194+ err = stop_machine(gracl_reload_apply_policies, &new_reload_state, NULL);
83195+ if (err)
83196+ goto error;
83197+
83198+ /* we've now applied the new policy, so restore the old policy state to free it */
83199+ polstate = &new_reload_state.oldpolicy;
83200+ current_alloc_state = &new_reload_state.oldalloc;
83201+ free_variables(true);
83202+
83203+ /* oldpolicy/oldalloc_ptr point to the new policy/alloc states as they were copied
83204+ to running_polstate/current_alloc_state inside stop_machine
83205+ */
83206+ err = 0;
83207+ goto out;
83208+error:
83209+ /* on error of loading the new policy, we'll just keep the previous
83210+ policy set around
83211+ */
83212+ free_variables(true);
83213+
83214+ /* doesn't affect runtime, but maintains consistent state */
83215+out:
83216+ polstate = new_reload_state.oldpolicy_ptr;
83217+ current_alloc_state = new_reload_state.oldalloc_ptr;
83218+
83219+ return err;
83220+}
83221+
83222+static int
83223+gracl_init(struct gr_arg *args)
83224+{
83225+ int error = 0;
83226+
83227+ memcpy(gr_system_salt, args->salt, GR_SALT_LEN);
83228+ memcpy(gr_system_sum, args->sum, GR_SHA_LEN);
83229+
83230+ if (init_variables(args, false)) {
83231+ gr_log_str(GR_DONT_AUDIT_GOOD, GR_INITF_ACL_MSG, GR_VERSION);
83232+ error = -ENOMEM;
83233+ goto out;
83234+ }
83235+
83236+ error = copy_user_acl(args);
83237+ free_init_variables();
83238+ if (error)
83239+ goto out;
83240+
83241+ error = gr_set_acls(0);
83242+ if (error)
83243+ goto out;
83244+
83245+ gr_enable_rbac_system();
83246+
83247+ return 0;
83248+
83249+out:
83250+ free_variables(false);
83251+ return error;
83252+}
83253+
83254+static int
83255+lookup_special_role_auth(__u16 mode, const char *rolename, unsigned char **salt,
83256+ unsigned char **sum)
83257+{
83258+ struct acl_role_label *r;
83259+ struct role_allowed_ip *ipp;
83260+ struct role_transition *trans;
83261+ unsigned int i;
83262+ int found = 0;
83263+ u32 curr_ip = current->signal->curr_ip;
83264+
83265+ current->signal->saved_ip = curr_ip;
83266+
83267+ /* check transition table */
83268+
83269+ for (trans = current->role->transitions; trans; trans = trans->next) {
83270+ if (!strcmp(rolename, trans->rolename)) {
83271+ found = 1;
83272+ break;
83273+ }
83274+ }
83275+
83276+ if (!found)
83277+ return 0;
83278+
83279+ /* handle special roles that do not require authentication
83280+ and check ip */
83281+
83282+ FOR_EACH_ROLE_START(r)
83283+ if (!strcmp(rolename, r->rolename) &&
83284+ (r->roletype & GR_ROLE_SPECIAL)) {
83285+ found = 0;
83286+ if (r->allowed_ips != NULL) {
83287+ for (ipp = r->allowed_ips; ipp; ipp = ipp->next) {
83288+ if ((ntohl(curr_ip) & ipp->netmask) ==
83289+ (ntohl(ipp->addr) & ipp->netmask))
83290+ found = 1;
83291+ }
83292+ } else
83293+ found = 2;
83294+ if (!found)
83295+ return 0;
83296+
83297+ if (((mode == GR_SPROLE) && (r->roletype & GR_ROLE_NOPW)) ||
83298+ ((mode == GR_SPROLEPAM) && (r->roletype & GR_ROLE_PAM))) {
83299+ *salt = NULL;
83300+ *sum = NULL;
83301+ return 1;
83302+ }
83303+ }
83304+ FOR_EACH_ROLE_END(r)
83305+
83306+ for (i = 0; i < polstate->num_sprole_pws; i++) {
83307+ if (!strcmp(rolename, polstate->acl_special_roles[i]->rolename)) {
83308+ *salt = polstate->acl_special_roles[i]->salt;
83309+ *sum = polstate->acl_special_roles[i]->sum;
83310+ return 1;
83311+ }
83312+ }
83313+
83314+ return 0;
83315+}
83316+
83317+int gr_check_secure_terminal(struct task_struct *task)
83318+{
83319+ struct task_struct *p, *p2, *p3;
83320+ struct files_struct *files;
83321+ struct fdtable *fdt;
83322+ struct file *our_file = NULL, *file;
83323+ int i;
83324+
83325+ if (task->signal->tty == NULL)
83326+ return 1;
83327+
83328+ files = get_files_struct(task);
83329+ if (files != NULL) {
83330+ rcu_read_lock();
83331+ fdt = files_fdtable(files);
83332+ for (i=0; i < fdt->max_fds; i++) {
83333+ file = fcheck_files(files, i);
83334+ if (file && (our_file == NULL) && (file->private_data == task->signal->tty)) {
83335+ get_file(file);
83336+ our_file = file;
83337+ }
83338+ }
83339+ rcu_read_unlock();
83340+ put_files_struct(files);
83341+ }
83342+
83343+ if (our_file == NULL)
83344+ return 1;
83345+
83346+ read_lock(&tasklist_lock);
83347+ do_each_thread(p2, p) {
83348+ files = get_files_struct(p);
83349+ if (files == NULL ||
83350+ (p->signal && p->signal->tty == task->signal->tty)) {
83351+ if (files != NULL)
83352+ put_files_struct(files);
83353+ continue;
83354+ }
83355+ rcu_read_lock();
83356+ fdt = files_fdtable(files);
83357+ for (i=0; i < fdt->max_fds; i++) {
83358+ file = fcheck_files(files, i);
83359+ if (file && S_ISCHR(file->f_path.dentry->d_inode->i_mode) &&
83360+ file->f_path.dentry->d_inode->i_rdev == our_file->f_path.dentry->d_inode->i_rdev) {
83361+ p3 = task;
83362+ while (task_pid_nr(p3) > 0) {
83363+ if (p3 == p)
83364+ break;
83365+ p3 = p3->real_parent;
83366+ }
83367+ if (p3 == p)
83368+ break;
83369+ gr_log_ttysniff(GR_DONT_AUDIT_GOOD, GR_TTYSNIFF_ACL_MSG, p);
83370+ gr_handle_alertkill(p);
83371+ rcu_read_unlock();
83372+ put_files_struct(files);
83373+ read_unlock(&tasklist_lock);
83374+ fput(our_file);
83375+ return 0;
83376+ }
83377+ }
83378+ rcu_read_unlock();
83379+ put_files_struct(files);
83380+ } while_each_thread(p2, p);
83381+ read_unlock(&tasklist_lock);
83382+
83383+ fput(our_file);
83384+ return 1;
83385+}
83386+
83387+ssize_t
83388+write_grsec_handler(struct file *file, const char __user * buf, size_t count, loff_t *ppos)
83389+{
83390+ struct gr_arg_wrapper uwrap;
83391+ unsigned char *sprole_salt = NULL;
83392+ unsigned char *sprole_sum = NULL;
83393+ int error = 0;
83394+ int error2 = 0;
83395+ size_t req_count = 0;
83396+ unsigned char oldmode = 0;
83397+
83398+ mutex_lock(&gr_dev_mutex);
83399+
83400+ if (gr_acl_is_enabled() && !(current->acl->mode & GR_KERNELAUTH)) {
83401+ error = -EPERM;
83402+ goto out;
83403+ }
83404+
83405+#ifdef CONFIG_COMPAT
83406+ pax_open_kernel();
83407+ if (is_compat_task()) {
83408+ copy_gr_arg_wrapper = &copy_gr_arg_wrapper_compat;
83409+ copy_gr_arg = &copy_gr_arg_compat;
83410+ copy_acl_object_label = &copy_acl_object_label_compat;
83411+ copy_acl_subject_label = &copy_acl_subject_label_compat;
83412+ copy_acl_role_label = &copy_acl_role_label_compat;
83413+ copy_acl_ip_label = &copy_acl_ip_label_compat;
83414+ copy_role_allowed_ip = &copy_role_allowed_ip_compat;
83415+ copy_role_transition = &copy_role_transition_compat;
83416+ copy_sprole_pw = &copy_sprole_pw_compat;
83417+ copy_gr_hash_struct = &copy_gr_hash_struct_compat;
83418+ copy_pointer_from_array = &copy_pointer_from_array_compat;
83419+ get_gr_arg_wrapper_size = &get_gr_arg_wrapper_size_compat;
83420+ } else {
83421+ copy_gr_arg_wrapper = &copy_gr_arg_wrapper_normal;
83422+ copy_gr_arg = &copy_gr_arg_normal;
83423+ copy_acl_object_label = &copy_acl_object_label_normal;
83424+ copy_acl_subject_label = &copy_acl_subject_label_normal;
83425+ copy_acl_role_label = &copy_acl_role_label_normal;
83426+ copy_acl_ip_label = &copy_acl_ip_label_normal;
83427+ copy_role_allowed_ip = &copy_role_allowed_ip_normal;
83428+ copy_role_transition = &copy_role_transition_normal;
83429+ copy_sprole_pw = &copy_sprole_pw_normal;
83430+ copy_gr_hash_struct = &copy_gr_hash_struct_normal;
83431+ copy_pointer_from_array = &copy_pointer_from_array_normal;
83432+ get_gr_arg_wrapper_size = &get_gr_arg_wrapper_size_normal;
83433+ }
83434+ pax_close_kernel();
83435+#endif
83436+
83437+ req_count = get_gr_arg_wrapper_size();
83438+
83439+ if (count != req_count) {
83440+ gr_log_int_int(GR_DONT_AUDIT_GOOD, GR_DEV_ACL_MSG, (int)count, (int)req_count);
83441+ error = -EINVAL;
83442+ goto out;
83443+ }
83444+
83445+
83446+ if (gr_auth_expires && time_after_eq(get_seconds(), gr_auth_expires)) {
83447+ gr_auth_expires = 0;
83448+ gr_auth_attempts = 0;
83449+ }
83450+
83451+ error = copy_gr_arg_wrapper(buf, &uwrap);
83452+ if (error)
83453+ goto out;
83454+
83455+ error = copy_gr_arg(uwrap.arg, gr_usermode);
83456+ if (error)
83457+ goto out;
83458+
83459+ if (gr_usermode->mode != GR_SPROLE && gr_usermode->mode != GR_SPROLEPAM &&
83460+ gr_auth_attempts >= CONFIG_GRKERNSEC_ACL_MAXTRIES &&
83461+ time_after(gr_auth_expires, get_seconds())) {
83462+ error = -EBUSY;
83463+ goto out;
83464+ }
83465+
83466+ /* if non-root trying to do anything other than use a special role,
83467+ do not attempt authentication, do not count towards authentication
83468+ locking
83469+ */
83470+
83471+ if (gr_usermode->mode != GR_SPROLE && gr_usermode->mode != GR_STATUS &&
83472+ gr_usermode->mode != GR_UNSPROLE && gr_usermode->mode != GR_SPROLEPAM &&
83473+ gr_is_global_nonroot(current_uid())) {
83474+ error = -EPERM;
83475+ goto out;
83476+ }
83477+
83478+ /* ensure pw and special role name are null terminated */
83479+
83480+ gr_usermode->pw[GR_PW_LEN - 1] = '\0';
83481+ gr_usermode->sp_role[GR_SPROLE_LEN - 1] = '\0';
83482+
83483+ /* Okay.
83484+ * We have our enough of the argument structure..(we have yet
83485+ * to copy_from_user the tables themselves) . Copy the tables
83486+ * only if we need them, i.e. for loading operations. */
83487+
83488+ switch (gr_usermode->mode) {
83489+ case GR_STATUS:
83490+ if (gr_acl_is_enabled()) {
83491+ error = 1;
83492+ if (!gr_check_secure_terminal(current))
83493+ error = 3;
83494+ } else
83495+ error = 2;
83496+ goto out;
83497+ case GR_SHUTDOWN:
83498+ if (gr_acl_is_enabled() && !(chkpw(gr_usermode, gr_system_salt, gr_system_sum))) {
83499+ stop_machine(gr_rbac_disable, NULL, NULL);
83500+ free_variables(false);
83501+ memset(gr_usermode, 0, sizeof(struct gr_arg));
83502+ memset(gr_system_salt, 0, GR_SALT_LEN);
83503+ memset(gr_system_sum, 0, GR_SHA_LEN);
83504+ gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_SHUTS_ACL_MSG);
83505+ } else if (gr_acl_is_enabled()) {
83506+ gr_log_noargs(GR_DONT_AUDIT, GR_SHUTF_ACL_MSG);
83507+ error = -EPERM;
83508+ } else {
83509+ gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_SHUTI_ACL_MSG);
83510+ error = -EAGAIN;
83511+ }
83512+ break;
83513+ case GR_ENABLE:
83514+ if (!gr_acl_is_enabled() && !(error2 = gracl_init(gr_usermode)))
83515+ gr_log_str(GR_DONT_AUDIT_GOOD, GR_ENABLE_ACL_MSG, GR_VERSION);
83516+ else {
83517+ if (gr_acl_is_enabled())
83518+ error = -EAGAIN;
83519+ else
83520+ error = error2;
83521+ gr_log_str(GR_DONT_AUDIT, GR_ENABLEF_ACL_MSG, GR_VERSION);
83522+ }
83523+ break;
83524+ case GR_OLDRELOAD:
83525+ oldmode = 1;
83526+ case GR_RELOAD:
83527+ if (!gr_acl_is_enabled()) {
83528+ gr_log_str(GR_DONT_AUDIT_GOOD, GR_RELOADI_ACL_MSG, GR_VERSION);
83529+ error = -EAGAIN;
83530+ } else if (!(chkpw(gr_usermode, gr_system_salt, gr_system_sum))) {
83531+ error2 = gracl_reload(gr_usermode, oldmode);
83532+ if (!error2)
83533+ gr_log_str(GR_DONT_AUDIT_GOOD, GR_RELOAD_ACL_MSG, GR_VERSION);
83534+ else {
83535+ gr_log_str(GR_DONT_AUDIT, GR_RELOADF_ACL_MSG, GR_VERSION);
83536+ error = error2;
83537+ }
83538+ } else {
83539+ gr_log_str(GR_DONT_AUDIT, GR_RELOADF_ACL_MSG, GR_VERSION);
83540+ error = -EPERM;
83541+ }
83542+ break;
83543+ case GR_SEGVMOD:
83544+ if (unlikely(!gr_acl_is_enabled())) {
83545+ gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_SEGVMODI_ACL_MSG);
83546+ error = -EAGAIN;
83547+ break;
83548+ }
83549+
83550+ if (!(chkpw(gr_usermode, gr_system_salt, gr_system_sum))) {
83551+ gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_SEGVMODS_ACL_MSG);
83552+ if (gr_usermode->segv_device && gr_usermode->segv_inode) {
83553+ struct acl_subject_label *segvacl;
83554+ segvacl =
83555+ lookup_acl_subj_label(gr_usermode->segv_inode,
83556+ gr_usermode->segv_device,
83557+ current->role);
83558+ if (segvacl) {
83559+ segvacl->crashes = 0;
83560+ segvacl->expires = 0;
83561+ }
83562+ } else if (gr_find_uid(gr_usermode->segv_uid) >= 0) {
83563+ gr_remove_uid(gr_usermode->segv_uid);
83564+ }
83565+ } else {
83566+ gr_log_noargs(GR_DONT_AUDIT, GR_SEGVMODF_ACL_MSG);
83567+ error = -EPERM;
83568+ }
83569+ break;
83570+ case GR_SPROLE:
83571+ case GR_SPROLEPAM:
83572+ if (unlikely(!gr_acl_is_enabled())) {
83573+ gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_SPROLEI_ACL_MSG);
83574+ error = -EAGAIN;
83575+ break;
83576+ }
83577+
83578+ if (current->role->expires && time_after_eq(get_seconds(), current->role->expires)) {
83579+ current->role->expires = 0;
83580+ current->role->auth_attempts = 0;
83581+ }
83582+
83583+ if (current->role->auth_attempts >= CONFIG_GRKERNSEC_ACL_MAXTRIES &&
83584+ time_after(current->role->expires, get_seconds())) {
83585+ error = -EBUSY;
83586+ goto out;
83587+ }
83588+
83589+ if (lookup_special_role_auth
83590+ (gr_usermode->mode, gr_usermode->sp_role, &sprole_salt, &sprole_sum)
83591+ && ((!sprole_salt && !sprole_sum)
83592+ || !(chkpw(gr_usermode, sprole_salt, sprole_sum)))) {
83593+ char *p = "";
83594+ assign_special_role(gr_usermode->sp_role);
83595+ read_lock(&tasklist_lock);
83596+ if (current->real_parent)
83597+ p = current->real_parent->role->rolename;
83598+ read_unlock(&tasklist_lock);
83599+ gr_log_str_int(GR_DONT_AUDIT_GOOD, GR_SPROLES_ACL_MSG,
83600+ p, acl_sp_role_value);
83601+ } else {
83602+ gr_log_str(GR_DONT_AUDIT, GR_SPROLEF_ACL_MSG, gr_usermode->sp_role);
83603+ error = -EPERM;
83604+ if(!(current->role->auth_attempts++))
83605+ current->role->expires = get_seconds() + CONFIG_GRKERNSEC_ACL_TIMEOUT;
83606+
83607+ goto out;
83608+ }
83609+ break;
83610+ case GR_UNSPROLE:
83611+ if (unlikely(!gr_acl_is_enabled())) {
83612+ gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_UNSPROLEI_ACL_MSG);
83613+ error = -EAGAIN;
83614+ break;
83615+ }
83616+
83617+ if (current->role->roletype & GR_ROLE_SPECIAL) {
83618+ char *p = "";
83619+ int i = 0;
83620+
83621+ read_lock(&tasklist_lock);
83622+ if (current->real_parent) {
83623+ p = current->real_parent->role->rolename;
83624+ i = current->real_parent->acl_role_id;
83625+ }
83626+ read_unlock(&tasklist_lock);
83627+
83628+ gr_log_str_int(GR_DONT_AUDIT_GOOD, GR_UNSPROLES_ACL_MSG, p, i);
83629+ gr_set_acls(1);
83630+ } else {
83631+ error = -EPERM;
83632+ goto out;
83633+ }
83634+ break;
83635+ default:
83636+ gr_log_int(GR_DONT_AUDIT, GR_INVMODE_ACL_MSG, gr_usermode->mode);
83637+ error = -EINVAL;
83638+ break;
83639+ }
83640+
83641+ if (error != -EPERM)
83642+ goto out;
83643+
83644+ if(!(gr_auth_attempts++))
83645+ gr_auth_expires = get_seconds() + CONFIG_GRKERNSEC_ACL_TIMEOUT;
83646+
83647+ out:
83648+ mutex_unlock(&gr_dev_mutex);
83649+
83650+ if (!error)
83651+ error = req_count;
83652+
83653+ return error;
83654+}
83655+
83656+int
83657+gr_set_acls(const int type)
83658+{
83659+ struct task_struct *task, *task2;
83660+ struct acl_role_label *role = current->role;
83661+ struct acl_subject_label *subj;
83662+ __u16 acl_role_id = current->acl_role_id;
83663+ const struct cred *cred;
83664+ int ret;
83665+
83666+ rcu_read_lock();
83667+ read_lock(&tasklist_lock);
83668+ read_lock(&grsec_exec_file_lock);
83669+ do_each_thread(task2, task) {
83670+ /* check to see if we're called from the exit handler,
83671+ if so, only replace ACLs that have inherited the admin
83672+ ACL */
83673+
83674+ if (type && (task->role != role ||
83675+ task->acl_role_id != acl_role_id))
83676+ continue;
83677+
83678+ task->acl_role_id = 0;
83679+ task->acl_sp_role = 0;
83680+ task->inherited = 0;
83681+
83682+ if (task->exec_file) {
83683+ cred = __task_cred(task);
83684+ task->role = __lookup_acl_role_label(polstate, task, GR_GLOBAL_UID(cred->uid), GR_GLOBAL_GID(cred->gid));
83685+ subj = __gr_get_subject_for_task(polstate, task, NULL, 1);
83686+ if (subj == NULL) {
83687+ ret = -EINVAL;
83688+ read_unlock(&grsec_exec_file_lock);
83689+ read_unlock(&tasklist_lock);
83690+ rcu_read_unlock();
83691+ gr_log_str_int(GR_DONT_AUDIT_GOOD, GR_DEFACL_MSG, task->comm, task_pid_nr(task));
83692+ return ret;
83693+ }
83694+ __gr_apply_subject_to_task(polstate, task, subj);
83695+ } else {
83696+ // it's a kernel process
83697+ task->role = polstate->kernel_role;
83698+ task->acl = polstate->kernel_role->root_label;
83699+#ifdef CONFIG_GRKERNSEC_ACL_HIDEKERN
83700+ task->acl->mode &= ~GR_PROCFIND;
83701+#endif
83702+ }
83703+ } while_each_thread(task2, task);
83704+ read_unlock(&grsec_exec_file_lock);
83705+ read_unlock(&tasklist_lock);
83706+ rcu_read_unlock();
83707+
83708+ return 0;
83709+}
83710diff --git a/grsecurity/gracl_res.c b/grsecurity/gracl_res.c
83711new file mode 100644
83712index 0000000..39645c9
83713--- /dev/null
83714+++ b/grsecurity/gracl_res.c
83715@@ -0,0 +1,68 @@
83716+#include <linux/kernel.h>
83717+#include <linux/sched.h>
83718+#include <linux/gracl.h>
83719+#include <linux/grinternal.h>
83720+
83721+static const char *restab_log[] = {
83722+ [RLIMIT_CPU] = "RLIMIT_CPU",
83723+ [RLIMIT_FSIZE] = "RLIMIT_FSIZE",
83724+ [RLIMIT_DATA] = "RLIMIT_DATA",
83725+ [RLIMIT_STACK] = "RLIMIT_STACK",
83726+ [RLIMIT_CORE] = "RLIMIT_CORE",
83727+ [RLIMIT_RSS] = "RLIMIT_RSS",
83728+ [RLIMIT_NPROC] = "RLIMIT_NPROC",
83729+ [RLIMIT_NOFILE] = "RLIMIT_NOFILE",
83730+ [RLIMIT_MEMLOCK] = "RLIMIT_MEMLOCK",
83731+ [RLIMIT_AS] = "RLIMIT_AS",
83732+ [RLIMIT_LOCKS] = "RLIMIT_LOCKS",
83733+ [RLIMIT_SIGPENDING] = "RLIMIT_SIGPENDING",
83734+ [RLIMIT_MSGQUEUE] = "RLIMIT_MSGQUEUE",
83735+ [RLIMIT_NICE] = "RLIMIT_NICE",
83736+ [RLIMIT_RTPRIO] = "RLIMIT_RTPRIO",
83737+ [RLIMIT_RTTIME] = "RLIMIT_RTTIME",
83738+ [GR_CRASH_RES] = "RLIMIT_CRASH"
83739+};
83740+
83741+void
83742+gr_log_resource(const struct task_struct *task,
83743+ const int res, const unsigned long wanted, const int gt)
83744+{
83745+ const struct cred *cred;
83746+ unsigned long rlim;
83747+
83748+ if (!gr_acl_is_enabled() && !grsec_resource_logging)
83749+ return;
83750+
83751+ // not yet supported resource
83752+ if (unlikely(!restab_log[res]))
83753+ return;
83754+
83755+ if (res == RLIMIT_CPU || res == RLIMIT_RTTIME)
83756+ rlim = task_rlimit_max(task, res);
83757+ else
83758+ rlim = task_rlimit(task, res);
83759+
83760+ if (likely((rlim == RLIM_INFINITY) || (gt && wanted <= rlim) || (!gt && wanted < rlim)))
83761+ return;
83762+
83763+ rcu_read_lock();
83764+ cred = __task_cred(task);
83765+
83766+ if (res == RLIMIT_NPROC &&
83767+ (cap_raised(cred->cap_effective, CAP_SYS_ADMIN) ||
83768+ cap_raised(cred->cap_effective, CAP_SYS_RESOURCE)))
83769+ goto out_rcu_unlock;
83770+ else if (res == RLIMIT_MEMLOCK &&
83771+ cap_raised(cred->cap_effective, CAP_IPC_LOCK))
83772+ goto out_rcu_unlock;
83773+ else if (res == RLIMIT_NICE && cap_raised(cred->cap_effective, CAP_SYS_NICE))
83774+ goto out_rcu_unlock;
83775+ rcu_read_unlock();
83776+
83777+ gr_log_res_ulong2_str(GR_DONT_AUDIT, GR_RESOURCE_MSG, task, wanted, restab_log[res], rlim);
83778+
83779+ return;
83780+out_rcu_unlock:
83781+ rcu_read_unlock();
83782+ return;
83783+}
83784diff --git a/grsecurity/gracl_segv.c b/grsecurity/gracl_segv.c
83785new file mode 100644
83786index 0000000..35d9e65
83787--- /dev/null
83788+++ b/grsecurity/gracl_segv.c
83789@@ -0,0 +1,324 @@
83790+#include <linux/kernel.h>
83791+#include <linux/mm.h>
83792+#include <asm/uaccess.h>
83793+#include <asm/errno.h>
83794+#include <asm/mman.h>
83795+#include <net/sock.h>
83796+#include <linux/file.h>
83797+#include <linux/fs.h>
83798+#include <linux/net.h>
83799+#include <linux/in.h>
83800+#include <linux/slab.h>
83801+#include <linux/types.h>
83802+#include <linux/sched.h>
83803+#include <linux/timer.h>
83804+#include <linux/gracl.h>
83805+#include <linux/grsecurity.h>
83806+#include <linux/grinternal.h>
83807+#if defined(CONFIG_BTRFS_FS) || defined(CONFIG_BTRFS_FS_MODULE)
83808+#include <linux/magic.h>
83809+#include <linux/pagemap.h>
83810+#include "../fs/btrfs/async-thread.h"
83811+#include "../fs/btrfs/ctree.h"
83812+#include "../fs/btrfs/btrfs_inode.h"
83813+#endif
83814+
83815+static struct crash_uid *uid_set;
83816+static unsigned short uid_used;
83817+static DEFINE_SPINLOCK(gr_uid_lock);
83818+extern rwlock_t gr_inode_lock;
83819+extern struct acl_subject_label *
83820+ lookup_acl_subj_label(const u64 inode, const dev_t dev,
83821+ struct acl_role_label *role);
83822+
83823+static inline dev_t __get_dev(const struct dentry *dentry)
83824+{
83825+#if defined(CONFIG_BTRFS_FS) || defined(CONFIG_BTRFS_FS_MODULE)
83826+ if (dentry->d_sb->s_magic == BTRFS_SUPER_MAGIC)
83827+ return BTRFS_I(dentry->d_inode)->root->anon_dev;
83828+ else
83829+#endif
83830+ return dentry->d_sb->s_dev;
83831+}
83832+
83833+static inline u64 __get_ino(const struct dentry *dentry)
83834+{
83835+#if defined(CONFIG_BTRFS_FS) || defined(CONFIG_BTRFS_FS_MODULE)
83836+ if (dentry->d_sb->s_magic == BTRFS_SUPER_MAGIC)
83837+ return btrfs_ino(dentry->d_inode);
83838+ else
83839+#endif
83840+ return dentry->d_inode->i_ino;
83841+}
83842+
83843+int
83844+gr_init_uidset(void)
83845+{
83846+ uid_set =
83847+ kmalloc(GR_UIDTABLE_MAX * sizeof (struct crash_uid), GFP_KERNEL);
83848+ uid_used = 0;
83849+
83850+ return uid_set ? 1 : 0;
83851+}
83852+
83853+void
83854+gr_free_uidset(void)
83855+{
83856+ if (uid_set) {
83857+ struct crash_uid *tmpset;
83858+ spin_lock(&gr_uid_lock);
83859+ tmpset = uid_set;
83860+ uid_set = NULL;
83861+ uid_used = 0;
83862+ spin_unlock(&gr_uid_lock);
83863+ if (tmpset)
83864+ kfree(tmpset);
83865+ }
83866+
83867+ return;
83868+}
83869+
83870+int
83871+gr_find_uid(const uid_t uid)
83872+{
83873+ struct crash_uid *tmp = uid_set;
83874+ uid_t buid;
83875+ int low = 0, high = uid_used - 1, mid;
83876+
83877+ while (high >= low) {
83878+ mid = (low + high) >> 1;
83879+ buid = tmp[mid].uid;
83880+ if (buid == uid)
83881+ return mid;
83882+ if (buid > uid)
83883+ high = mid - 1;
83884+ if (buid < uid)
83885+ low = mid + 1;
83886+ }
83887+
83888+ return -1;
83889+}
83890+
83891+static void
83892+gr_insertsort(void)
83893+{
83894+ unsigned short i, j;
83895+ struct crash_uid index;
83896+
83897+ for (i = 1; i < uid_used; i++) {
83898+ index = uid_set[i];
83899+ j = i;
83900+ while ((j > 0) && uid_set[j - 1].uid > index.uid) {
83901+ uid_set[j] = uid_set[j - 1];
83902+ j--;
83903+ }
83904+ uid_set[j] = index;
83905+ }
83906+
83907+ return;
83908+}
83909+
83910+static void
83911+gr_insert_uid(const kuid_t kuid, const unsigned long expires)
83912+{
83913+ int loc;
83914+ uid_t uid = GR_GLOBAL_UID(kuid);
83915+
83916+ if (uid_used == GR_UIDTABLE_MAX)
83917+ return;
83918+
83919+ loc = gr_find_uid(uid);
83920+
83921+ if (loc >= 0) {
83922+ uid_set[loc].expires = expires;
83923+ return;
83924+ }
83925+
83926+ uid_set[uid_used].uid = uid;
83927+ uid_set[uid_used].expires = expires;
83928+ uid_used++;
83929+
83930+ gr_insertsort();
83931+
83932+ return;
83933+}
83934+
83935+void
83936+gr_remove_uid(const unsigned short loc)
83937+{
83938+ unsigned short i;
83939+
83940+ for (i = loc + 1; i < uid_used; i++)
83941+ uid_set[i - 1] = uid_set[i];
83942+
83943+ uid_used--;
83944+
83945+ return;
83946+}
83947+
83948+int
83949+gr_check_crash_uid(const kuid_t kuid)
83950+{
83951+ int loc;
83952+ int ret = 0;
83953+ uid_t uid;
83954+
83955+ if (unlikely(!gr_acl_is_enabled()))
83956+ return 0;
83957+
83958+ uid = GR_GLOBAL_UID(kuid);
83959+
83960+ spin_lock(&gr_uid_lock);
83961+ loc = gr_find_uid(uid);
83962+
83963+ if (loc < 0)
83964+ goto out_unlock;
83965+
83966+ if (time_before_eq(uid_set[loc].expires, get_seconds()))
83967+ gr_remove_uid(loc);
83968+ else
83969+ ret = 1;
83970+
83971+out_unlock:
83972+ spin_unlock(&gr_uid_lock);
83973+ return ret;
83974+}
83975+
83976+static int
83977+proc_is_setxid(const struct cred *cred)
83978+{
83979+ if (!uid_eq(cred->uid, cred->euid) || !uid_eq(cred->uid, cred->suid) ||
83980+ !uid_eq(cred->uid, cred->fsuid))
83981+ return 1;
83982+ if (!gid_eq(cred->gid, cred->egid) || !gid_eq(cred->gid, cred->sgid) ||
83983+ !gid_eq(cred->gid, cred->fsgid))
83984+ return 1;
83985+
83986+ return 0;
83987+}
83988+
83989+extern int gr_fake_force_sig(int sig, struct task_struct *t);
83990+
83991+void
83992+gr_handle_crash(struct task_struct *task, const int sig)
83993+{
83994+ struct acl_subject_label *curr;
83995+ struct task_struct *tsk, *tsk2;
83996+ const struct cred *cred;
83997+ const struct cred *cred2;
83998+
83999+ if (sig != SIGSEGV && sig != SIGKILL && sig != SIGBUS && sig != SIGILL)
84000+ return;
84001+
84002+ if (unlikely(!gr_acl_is_enabled()))
84003+ return;
84004+
84005+ curr = task->acl;
84006+
84007+ if (!(curr->resmask & (1U << GR_CRASH_RES)))
84008+ return;
84009+
84010+ if (time_before_eq(curr->expires, get_seconds())) {
84011+ curr->expires = 0;
84012+ curr->crashes = 0;
84013+ }
84014+
84015+ curr->crashes++;
84016+
84017+ if (!curr->expires)
84018+ curr->expires = get_seconds() + curr->res[GR_CRASH_RES].rlim_max;
84019+
84020+ if ((curr->crashes >= curr->res[GR_CRASH_RES].rlim_cur) &&
84021+ time_after(curr->expires, get_seconds())) {
84022+ rcu_read_lock();
84023+ cred = __task_cred(task);
84024+ if (gr_is_global_nonroot(cred->uid) && proc_is_setxid(cred)) {
84025+ gr_log_crash1(GR_DONT_AUDIT, GR_SEGVSTART_ACL_MSG, task, curr->res[GR_CRASH_RES].rlim_max);
84026+ spin_lock(&gr_uid_lock);
84027+ gr_insert_uid(cred->uid, curr->expires);
84028+ spin_unlock(&gr_uid_lock);
84029+ curr->expires = 0;
84030+ curr->crashes = 0;
84031+ read_lock(&tasklist_lock);
84032+ do_each_thread(tsk2, tsk) {
84033+ cred2 = __task_cred(tsk);
84034+ if (tsk != task && uid_eq(cred2->uid, cred->uid))
84035+ gr_fake_force_sig(SIGKILL, tsk);
84036+ } while_each_thread(tsk2, tsk);
84037+ read_unlock(&tasklist_lock);
84038+ } else {
84039+ gr_log_crash2(GR_DONT_AUDIT, GR_SEGVNOSUID_ACL_MSG, task, curr->res[GR_CRASH_RES].rlim_max);
84040+ read_lock(&tasklist_lock);
84041+ read_lock(&grsec_exec_file_lock);
84042+ do_each_thread(tsk2, tsk) {
84043+ if (likely(tsk != task)) {
84044+ // if this thread has the same subject as the one that triggered
84045+ // RES_CRASH and it's the same binary, kill it
84046+ if (tsk->acl == task->acl && gr_is_same_file(tsk->exec_file, task->exec_file))
84047+ gr_fake_force_sig(SIGKILL, tsk);
84048+ }
84049+ } while_each_thread(tsk2, tsk);
84050+ read_unlock(&grsec_exec_file_lock);
84051+ read_unlock(&tasklist_lock);
84052+ }
84053+ rcu_read_unlock();
84054+ }
84055+
84056+ return;
84057+}
84058+
84059+int
84060+gr_check_crash_exec(const struct file *filp)
84061+{
84062+ struct acl_subject_label *curr;
84063+ struct dentry *dentry;
84064+
84065+ if (unlikely(!gr_acl_is_enabled()))
84066+ return 0;
84067+
84068+ read_lock(&gr_inode_lock);
84069+ dentry = filp->f_path.dentry;
84070+ curr = lookup_acl_subj_label(__get_ino(dentry), __get_dev(dentry),
84071+ current->role);
84072+ read_unlock(&gr_inode_lock);
84073+
84074+ if (!curr || !(curr->resmask & (1U << GR_CRASH_RES)) ||
84075+ (!curr->crashes && !curr->expires))
84076+ return 0;
84077+
84078+ if ((curr->crashes >= curr->res[GR_CRASH_RES].rlim_cur) &&
84079+ time_after(curr->expires, get_seconds()))
84080+ return 1;
84081+ else if (time_before_eq(curr->expires, get_seconds())) {
84082+ curr->crashes = 0;
84083+ curr->expires = 0;
84084+ }
84085+
84086+ return 0;
84087+}
84088+
84089+void
84090+gr_handle_alertkill(struct task_struct *task)
84091+{
84092+ struct acl_subject_label *curracl;
84093+ __u32 curr_ip;
84094+ struct task_struct *p, *p2;
84095+
84096+ if (unlikely(!gr_acl_is_enabled()))
84097+ return;
84098+
84099+ curracl = task->acl;
84100+ curr_ip = task->signal->curr_ip;
84101+
84102+ if ((curracl->mode & GR_KILLIPPROC) && curr_ip) {
84103+ read_lock(&tasklist_lock);
84104+ do_each_thread(p2, p) {
84105+ if (p->signal->curr_ip == curr_ip)
84106+ gr_fake_force_sig(SIGKILL, p);
84107+ } while_each_thread(p2, p);
84108+ read_unlock(&tasklist_lock);
84109+ } else if (curracl->mode & GR_KILLPROC)
84110+ gr_fake_force_sig(SIGKILL, task);
84111+
84112+ return;
84113+}
84114diff --git a/grsecurity/gracl_shm.c b/grsecurity/gracl_shm.c
84115new file mode 100644
84116index 0000000..6b0c9cc
84117--- /dev/null
84118+++ b/grsecurity/gracl_shm.c
84119@@ -0,0 +1,40 @@
84120+#include <linux/kernel.h>
84121+#include <linux/mm.h>
84122+#include <linux/sched.h>
84123+#include <linux/file.h>
84124+#include <linux/ipc.h>
84125+#include <linux/gracl.h>
84126+#include <linux/grsecurity.h>
84127+#include <linux/grinternal.h>
84128+
84129+int
84130+gr_handle_shmat(const pid_t shm_cprid, const pid_t shm_lapid,
84131+ const u64 shm_createtime, const kuid_t cuid, const int shmid)
84132+{
84133+ struct task_struct *task;
84134+
84135+ if (!gr_acl_is_enabled())
84136+ return 1;
84137+
84138+ rcu_read_lock();
84139+ read_lock(&tasklist_lock);
84140+
84141+ task = find_task_by_vpid(shm_cprid);
84142+
84143+ if (unlikely(!task))
84144+ task = find_task_by_vpid(shm_lapid);
84145+
84146+ if (unlikely(task && (time_before_eq64(task->start_time, shm_createtime) ||
84147+ (task_pid_nr(task) == shm_lapid)) &&
84148+ (task->acl->mode & GR_PROTSHM) &&
84149+ (task->acl != current->acl))) {
84150+ read_unlock(&tasklist_lock);
84151+ rcu_read_unlock();
84152+ gr_log_int3(GR_DONT_AUDIT, GR_SHMAT_ACL_MSG, GR_GLOBAL_UID(cuid), shm_cprid, shmid);
84153+ return 0;
84154+ }
84155+ read_unlock(&tasklist_lock);
84156+ rcu_read_unlock();
84157+
84158+ return 1;
84159+}
84160diff --git a/grsecurity/grsec_chdir.c b/grsecurity/grsec_chdir.c
84161new file mode 100644
84162index 0000000..bc0be01
84163--- /dev/null
84164+++ b/grsecurity/grsec_chdir.c
84165@@ -0,0 +1,19 @@
84166+#include <linux/kernel.h>
84167+#include <linux/sched.h>
84168+#include <linux/fs.h>
84169+#include <linux/file.h>
84170+#include <linux/grsecurity.h>
84171+#include <linux/grinternal.h>
84172+
84173+void
84174+gr_log_chdir(const struct dentry *dentry, const struct vfsmount *mnt)
84175+{
84176+#ifdef CONFIG_GRKERNSEC_AUDIT_CHDIR
84177+ if ((grsec_enable_chdir && grsec_enable_group &&
84178+ in_group_p(grsec_audit_gid)) || (grsec_enable_chdir &&
84179+ !grsec_enable_group)) {
84180+ gr_log_fs_generic(GR_DO_AUDIT, GR_CHDIR_AUDIT_MSG, dentry, mnt);
84181+ }
84182+#endif
84183+ return;
84184+}
84185diff --git a/grsecurity/grsec_chroot.c b/grsecurity/grsec_chroot.c
84186new file mode 100644
84187index 0000000..114ea4f
84188--- /dev/null
84189+++ b/grsecurity/grsec_chroot.c
84190@@ -0,0 +1,467 @@
84191+#include <linux/kernel.h>
84192+#include <linux/module.h>
84193+#include <linux/sched.h>
84194+#include <linux/file.h>
84195+#include <linux/fs.h>
84196+#include <linux/mount.h>
84197+#include <linux/types.h>
84198+#include "../fs/mount.h"
84199+#include <linux/grsecurity.h>
84200+#include <linux/grinternal.h>
84201+
84202+#ifdef CONFIG_GRKERNSEC_CHROOT_INITRD
84203+int gr_init_ran;
84204+#endif
84205+
84206+void gr_inc_chroot_refcnts(struct dentry *dentry, struct vfsmount *mnt)
84207+{
84208+#ifdef CONFIG_GRKERNSEC_CHROOT_RENAME
84209+ struct dentry *tmpd = dentry;
84210+
84211+ read_seqlock_excl(&mount_lock);
84212+ write_seqlock(&rename_lock);
84213+
84214+ while (tmpd != mnt->mnt_root) {
84215+ atomic_inc(&tmpd->chroot_refcnt);
84216+ tmpd = tmpd->d_parent;
84217+ }
84218+ atomic_inc(&tmpd->chroot_refcnt);
84219+
84220+ write_sequnlock(&rename_lock);
84221+ read_sequnlock_excl(&mount_lock);
84222+#endif
84223+}
84224+
84225+void gr_dec_chroot_refcnts(struct dentry *dentry, struct vfsmount *mnt)
84226+{
84227+#ifdef CONFIG_GRKERNSEC_CHROOT_RENAME
84228+ struct dentry *tmpd = dentry;
84229+
84230+ read_seqlock_excl(&mount_lock);
84231+ write_seqlock(&rename_lock);
84232+
84233+ while (tmpd != mnt->mnt_root) {
84234+ atomic_dec(&tmpd->chroot_refcnt);
84235+ tmpd = tmpd->d_parent;
84236+ }
84237+ atomic_dec(&tmpd->chroot_refcnt);
84238+
84239+ write_sequnlock(&rename_lock);
84240+ read_sequnlock_excl(&mount_lock);
84241+#endif
84242+}
84243+
84244+#ifdef CONFIG_GRKERNSEC_CHROOT_RENAME
84245+static struct dentry *get_closest_chroot(struct dentry *dentry)
84246+{
84247+ write_seqlock(&rename_lock);
84248+ do {
84249+ if (atomic_read(&dentry->chroot_refcnt)) {
84250+ write_sequnlock(&rename_lock);
84251+ return dentry;
84252+ }
84253+ dentry = dentry->d_parent;
84254+ } while (!IS_ROOT(dentry));
84255+ write_sequnlock(&rename_lock);
84256+ return NULL;
84257+}
84258+#endif
84259+
84260+int gr_bad_chroot_rename(struct dentry *olddentry, struct vfsmount *oldmnt,
84261+ struct dentry *newdentry, struct vfsmount *newmnt)
84262+{
84263+#ifdef CONFIG_GRKERNSEC_CHROOT_RENAME
84264+ struct dentry *chroot;
84265+
84266+ if (unlikely(!grsec_enable_chroot_rename))
84267+ return 0;
84268+
84269+ if (likely(!proc_is_chrooted(current) && gr_is_global_root(current_uid())))
84270+ return 0;
84271+
84272+ chroot = get_closest_chroot(olddentry);
84273+
84274+ if (chroot == NULL)
84275+ return 0;
84276+
84277+ if (is_subdir(newdentry, chroot))
84278+ return 0;
84279+
84280+ gr_log_fs_generic(GR_DONT_AUDIT, GR_CHROOT_RENAME_MSG, olddentry, oldmnt);
84281+
84282+ return 1;
84283+#else
84284+ return 0;
84285+#endif
84286+}
84287+
84288+void gr_set_chroot_entries(struct task_struct *task, const struct path *path)
84289+{
84290+#ifdef CONFIG_GRKERNSEC
84291+ if (task_pid_nr(task) > 1 && path->dentry != init_task.fs->root.dentry &&
84292+ path->dentry != task->nsproxy->mnt_ns->root->mnt.mnt_root
84293+#ifdef CONFIG_GRKERNSEC_CHROOT_INITRD
84294+ && gr_init_ran
84295+#endif
84296+ )
84297+ task->gr_is_chrooted = 1;
84298+ else {
84299+#ifdef CONFIG_GRKERNSEC_CHROOT_INITRD
84300+ if (task_pid_nr(task) == 1 && !gr_init_ran)
84301+ gr_init_ran = 1;
84302+#endif
84303+ task->gr_is_chrooted = 0;
84304+ }
84305+
84306+ task->gr_chroot_dentry = path->dentry;
84307+#endif
84308+ return;
84309+}
84310+
84311+void gr_clear_chroot_entries(struct task_struct *task)
84312+{
84313+#ifdef CONFIG_GRKERNSEC
84314+ task->gr_is_chrooted = 0;
84315+ task->gr_chroot_dentry = NULL;
84316+#endif
84317+ return;
84318+}
84319+
84320+int
84321+gr_handle_chroot_unix(const pid_t pid)
84322+{
84323+#ifdef CONFIG_GRKERNSEC_CHROOT_UNIX
84324+ struct task_struct *p;
84325+
84326+ if (unlikely(!grsec_enable_chroot_unix))
84327+ return 1;
84328+
84329+ if (likely(!proc_is_chrooted(current)))
84330+ return 1;
84331+
84332+ rcu_read_lock();
84333+ read_lock(&tasklist_lock);
84334+ p = find_task_by_vpid_unrestricted(pid);
84335+ if (unlikely(p && !have_same_root(current, p))) {
84336+ read_unlock(&tasklist_lock);
84337+ rcu_read_unlock();
84338+ gr_log_noargs(GR_DONT_AUDIT, GR_UNIX_CHROOT_MSG);
84339+ return 0;
84340+ }
84341+ read_unlock(&tasklist_lock);
84342+ rcu_read_unlock();
84343+#endif
84344+ return 1;
84345+}
84346+
84347+int
84348+gr_handle_chroot_nice(void)
84349+{
84350+#ifdef CONFIG_GRKERNSEC_CHROOT_NICE
84351+ if (grsec_enable_chroot_nice && proc_is_chrooted(current)) {
84352+ gr_log_noargs(GR_DONT_AUDIT, GR_NICE_CHROOT_MSG);
84353+ return -EPERM;
84354+ }
84355+#endif
84356+ return 0;
84357+}
84358+
84359+int
84360+gr_handle_chroot_setpriority(struct task_struct *p, const int niceval)
84361+{
84362+#ifdef CONFIG_GRKERNSEC_CHROOT_NICE
84363+ if (grsec_enable_chroot_nice && (niceval < task_nice(p))
84364+ && proc_is_chrooted(current)) {
84365+ gr_log_str_int(GR_DONT_AUDIT, GR_PRIORITY_CHROOT_MSG, p->comm, task_pid_nr(p));
84366+ return -EACCES;
84367+ }
84368+#endif
84369+ return 0;
84370+}
84371+
84372+int
84373+gr_handle_chroot_fowner(struct pid *pid, enum pid_type type)
84374+{
84375+#ifdef CONFIG_GRKERNSEC_CHROOT_FINDTASK
84376+ struct task_struct *p;
84377+ int ret = 0;
84378+ if (!grsec_enable_chroot_findtask || !proc_is_chrooted(current) || !pid)
84379+ return ret;
84380+
84381+ read_lock(&tasklist_lock);
84382+ do_each_pid_task(pid, type, p) {
84383+ if (!have_same_root(current, p)) {
84384+ ret = 1;
84385+ goto out;
84386+ }
84387+ } while_each_pid_task(pid, type, p);
84388+out:
84389+ read_unlock(&tasklist_lock);
84390+ return ret;
84391+#endif
84392+ return 0;
84393+}
84394+
84395+int
84396+gr_pid_is_chrooted(struct task_struct *p)
84397+{
84398+#ifdef CONFIG_GRKERNSEC_CHROOT_FINDTASK
84399+ if (!grsec_enable_chroot_findtask || !proc_is_chrooted(current) || p == NULL)
84400+ return 0;
84401+
84402+ if ((p->exit_state & (EXIT_ZOMBIE | EXIT_DEAD)) ||
84403+ !have_same_root(current, p)) {
84404+ return 1;
84405+ }
84406+#endif
84407+ return 0;
84408+}
84409+
84410+EXPORT_SYMBOL_GPL(gr_pid_is_chrooted);
84411+
84412+#if defined(CONFIG_GRKERNSEC_CHROOT_DOUBLE) || defined(CONFIG_GRKERNSEC_CHROOT_FCHDIR)
84413+int gr_is_outside_chroot(const struct dentry *u_dentry, const struct vfsmount *u_mnt)
84414+{
84415+ struct path path, currentroot;
84416+ int ret = 0;
84417+
84418+ path.dentry = (struct dentry *)u_dentry;
84419+ path.mnt = (struct vfsmount *)u_mnt;
84420+ get_fs_root(current->fs, &currentroot);
84421+ if (path_is_under(&path, &currentroot))
84422+ ret = 1;
84423+ path_put(&currentroot);
84424+
84425+ return ret;
84426+}
84427+#endif
84428+
84429+int
84430+gr_chroot_fchdir(struct dentry *u_dentry, struct vfsmount *u_mnt)
84431+{
84432+#ifdef CONFIG_GRKERNSEC_CHROOT_FCHDIR
84433+ if (!grsec_enable_chroot_fchdir)
84434+ return 1;
84435+
84436+ if (!proc_is_chrooted(current))
84437+ return 1;
84438+ else if (!gr_is_outside_chroot(u_dentry, u_mnt)) {
84439+ gr_log_fs_generic(GR_DONT_AUDIT, GR_CHROOT_FCHDIR_MSG, u_dentry, u_mnt);
84440+ return 0;
84441+ }
84442+#endif
84443+ return 1;
84444+}
84445+
84446+int
84447+gr_chroot_fhandle(void)
84448+{
84449+#ifdef CONFIG_GRKERNSEC_CHROOT_FCHDIR
84450+ if (!grsec_enable_chroot_fchdir)
84451+ return 1;
84452+
84453+ if (!proc_is_chrooted(current))
84454+ return 1;
84455+ else {
84456+ gr_log_noargs(GR_DONT_AUDIT, GR_CHROOT_FHANDLE_MSG);
84457+ return 0;
84458+ }
84459+#endif
84460+ return 1;
84461+}
84462+
84463+int
84464+gr_chroot_shmat(const pid_t shm_cprid, const pid_t shm_lapid,
84465+ const u64 shm_createtime)
84466+{
84467+#ifdef CONFIG_GRKERNSEC_CHROOT_SHMAT
84468+ struct task_struct *p;
84469+
84470+ if (unlikely(!grsec_enable_chroot_shmat))
84471+ return 1;
84472+
84473+ if (likely(!proc_is_chrooted(current)))
84474+ return 1;
84475+
84476+ rcu_read_lock();
84477+ read_lock(&tasklist_lock);
84478+
84479+ if ((p = find_task_by_vpid_unrestricted(shm_cprid))) {
84480+ if (time_before_eq64(p->start_time, shm_createtime)) {
84481+ if (have_same_root(current, p)) {
84482+ goto allow;
84483+ } else {
84484+ read_unlock(&tasklist_lock);
84485+ rcu_read_unlock();
84486+ gr_log_noargs(GR_DONT_AUDIT, GR_SHMAT_CHROOT_MSG);
84487+ return 0;
84488+ }
84489+ }
84490+ /* creator exited, pid reuse, fall through to next check */
84491+ }
84492+ if ((p = find_task_by_vpid_unrestricted(shm_lapid))) {
84493+ if (unlikely(!have_same_root(current, p))) {
84494+ read_unlock(&tasklist_lock);
84495+ rcu_read_unlock();
84496+ gr_log_noargs(GR_DONT_AUDIT, GR_SHMAT_CHROOT_MSG);
84497+ return 0;
84498+ }
84499+ }
84500+
84501+allow:
84502+ read_unlock(&tasklist_lock);
84503+ rcu_read_unlock();
84504+#endif
84505+ return 1;
84506+}
84507+
84508+void
84509+gr_log_chroot_exec(const struct dentry *dentry, const struct vfsmount *mnt)
84510+{
84511+#ifdef CONFIG_GRKERNSEC_CHROOT_EXECLOG
84512+ if (grsec_enable_chroot_execlog && proc_is_chrooted(current))
84513+ gr_log_fs_generic(GR_DO_AUDIT, GR_EXEC_CHROOT_MSG, dentry, mnt);
84514+#endif
84515+ return;
84516+}
84517+
84518+int
84519+gr_handle_chroot_mknod(const struct dentry *dentry,
84520+ const struct vfsmount *mnt, const int mode)
84521+{
84522+#ifdef CONFIG_GRKERNSEC_CHROOT_MKNOD
84523+ if (grsec_enable_chroot_mknod && !S_ISFIFO(mode) && !S_ISREG(mode) &&
84524+ proc_is_chrooted(current)) {
84525+ gr_log_fs_generic(GR_DONT_AUDIT, GR_MKNOD_CHROOT_MSG, dentry, mnt);
84526+ return -EPERM;
84527+ }
84528+#endif
84529+ return 0;
84530+}
84531+
84532+int
84533+gr_handle_chroot_mount(const struct dentry *dentry,
84534+ const struct vfsmount *mnt, const char *dev_name)
84535+{
84536+#ifdef CONFIG_GRKERNSEC_CHROOT_MOUNT
84537+ if (grsec_enable_chroot_mount && proc_is_chrooted(current)) {
84538+ gr_log_str_fs(GR_DONT_AUDIT, GR_MOUNT_CHROOT_MSG, dev_name ? dev_name : "none", dentry, mnt);
84539+ return -EPERM;
84540+ }
84541+#endif
84542+ return 0;
84543+}
84544+
84545+int
84546+gr_handle_chroot_pivot(void)
84547+{
84548+#ifdef CONFIG_GRKERNSEC_CHROOT_PIVOT
84549+ if (grsec_enable_chroot_pivot && proc_is_chrooted(current)) {
84550+ gr_log_noargs(GR_DONT_AUDIT, GR_PIVOT_CHROOT_MSG);
84551+ return -EPERM;
84552+ }
84553+#endif
84554+ return 0;
84555+}
84556+
84557+int
84558+gr_handle_chroot_chroot(const struct dentry *dentry, const struct vfsmount *mnt)
84559+{
84560+#ifdef CONFIG_GRKERNSEC_CHROOT_DOUBLE
84561+ if (grsec_enable_chroot_double && proc_is_chrooted(current) &&
84562+ !gr_is_outside_chroot(dentry, mnt)) {
84563+ gr_log_fs_generic(GR_DONT_AUDIT, GR_CHROOT_CHROOT_MSG, dentry, mnt);
84564+ return -EPERM;
84565+ }
84566+#endif
84567+ return 0;
84568+}
84569+
84570+extern const char *captab_log[];
84571+extern int captab_log_entries;
84572+
84573+int
84574+gr_task_chroot_is_capable(const struct task_struct *task, const struct cred *cred, const int cap)
84575+{
84576+#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS
84577+ if (grsec_enable_chroot_caps && proc_is_chrooted(task)) {
84578+ kernel_cap_t chroot_caps = GR_CHROOT_CAPS;
84579+ if (cap_raised(chroot_caps, cap)) {
84580+ if (cap_raised(cred->cap_effective, cap) && cap < captab_log_entries) {
84581+ gr_log_cap(GR_DONT_AUDIT, GR_CAP_CHROOT_MSG, task, captab_log[cap]);
84582+ }
84583+ return 0;
84584+ }
84585+ }
84586+#endif
84587+ return 1;
84588+}
84589+
84590+int
84591+gr_chroot_is_capable(const int cap)
84592+{
84593+#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS
84594+ return gr_task_chroot_is_capable(current, current_cred(), cap);
84595+#endif
84596+ return 1;
84597+}
84598+
84599+int
84600+gr_task_chroot_is_capable_nolog(const struct task_struct *task, const int cap)
84601+{
84602+#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS
84603+ if (grsec_enable_chroot_caps && proc_is_chrooted(task)) {
84604+ kernel_cap_t chroot_caps = GR_CHROOT_CAPS;
84605+ if (cap_raised(chroot_caps, cap)) {
84606+ return 0;
84607+ }
84608+ }
84609+#endif
84610+ return 1;
84611+}
84612+
84613+int
84614+gr_chroot_is_capable_nolog(const int cap)
84615+{
84616+#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS
84617+ return gr_task_chroot_is_capable_nolog(current, cap);
84618+#endif
84619+ return 1;
84620+}
84621+
84622+int
84623+gr_handle_chroot_sysctl(const int op)
84624+{
84625+#ifdef CONFIG_GRKERNSEC_CHROOT_SYSCTL
84626+ if (grsec_enable_chroot_sysctl && (op & MAY_WRITE) &&
84627+ proc_is_chrooted(current))
84628+ return -EACCES;
84629+#endif
84630+ return 0;
84631+}
84632+
84633+void
84634+gr_handle_chroot_chdir(const struct path *path)
84635+{
84636+#ifdef CONFIG_GRKERNSEC_CHROOT_CHDIR
84637+ if (grsec_enable_chroot_chdir)
84638+ set_fs_pwd(current->fs, path);
84639+#endif
84640+ return;
84641+}
84642+
84643+int
84644+gr_handle_chroot_chmod(const struct dentry *dentry,
84645+ const struct vfsmount *mnt, const int mode)
84646+{
84647+#ifdef CONFIG_GRKERNSEC_CHROOT_CHMOD
84648+ /* allow chmod +s on directories, but not files */
84649+ if (grsec_enable_chroot_chmod && !S_ISDIR(dentry->d_inode->i_mode) &&
84650+ ((mode & S_ISUID) || ((mode & (S_ISGID | S_IXGRP)) == (S_ISGID | S_IXGRP))) &&
84651+ proc_is_chrooted(current)) {
84652+ gr_log_fs_generic(GR_DONT_AUDIT, GR_CHMOD_CHROOT_MSG, dentry, mnt);
84653+ return -EPERM;
84654+ }
84655+#endif
84656+ return 0;
84657+}
84658diff --git a/grsecurity/grsec_disabled.c b/grsecurity/grsec_disabled.c
84659new file mode 100644
84660index 0000000..946f750
84661--- /dev/null
84662+++ b/grsecurity/grsec_disabled.c
84663@@ -0,0 +1,445 @@
84664+#include <linux/kernel.h>
84665+#include <linux/module.h>
84666+#include <linux/sched.h>
84667+#include <linux/file.h>
84668+#include <linux/fs.h>
84669+#include <linux/kdev_t.h>
84670+#include <linux/net.h>
84671+#include <linux/in.h>
84672+#include <linux/ip.h>
84673+#include <linux/skbuff.h>
84674+#include <linux/sysctl.h>
84675+
84676+#ifdef CONFIG_PAX_HAVE_ACL_FLAGS
84677+void
84678+pax_set_initial_flags(struct linux_binprm *bprm)
84679+{
84680+ return;
84681+}
84682+#endif
84683+
84684+#ifdef CONFIG_SYSCTL
84685+__u32
84686+gr_handle_sysctl(const struct ctl_table * table, const int op)
84687+{
84688+ return 0;
84689+}
84690+#endif
84691+
84692+#ifdef CONFIG_TASKSTATS
84693+int gr_is_taskstats_denied(int pid)
84694+{
84695+ return 0;
84696+}
84697+#endif
84698+
84699+int
84700+gr_acl_is_enabled(void)
84701+{
84702+ return 0;
84703+}
84704+
84705+int
84706+gr_learn_cap(const struct task_struct *task, const struct cred *cred, const int cap)
84707+{
84708+ return 0;
84709+}
84710+
84711+void
84712+gr_handle_proc_create(const struct dentry *dentry, const struct inode *inode)
84713+{
84714+ return;
84715+}
84716+
84717+int
84718+gr_handle_rawio(const struct inode *inode)
84719+{
84720+ return 0;
84721+}
84722+
84723+void
84724+gr_acl_handle_psacct(struct task_struct *task, const long code)
84725+{
84726+ return;
84727+}
84728+
84729+int
84730+gr_handle_ptrace(struct task_struct *task, const long request)
84731+{
84732+ return 0;
84733+}
84734+
84735+int
84736+gr_handle_proc_ptrace(struct task_struct *task)
84737+{
84738+ return 0;
84739+}
84740+
84741+int
84742+gr_set_acls(const int type)
84743+{
84744+ return 0;
84745+}
84746+
84747+int
84748+gr_check_hidden_task(const struct task_struct *tsk)
84749+{
84750+ return 0;
84751+}
84752+
84753+int
84754+gr_check_protected_task(const struct task_struct *task)
84755+{
84756+ return 0;
84757+}
84758+
84759+int
84760+gr_check_protected_task_fowner(struct pid *pid, enum pid_type type)
84761+{
84762+ return 0;
84763+}
84764+
84765+void
84766+gr_copy_label(struct task_struct *tsk)
84767+{
84768+ return;
84769+}
84770+
84771+void
84772+gr_set_pax_flags(struct task_struct *task)
84773+{
84774+ return;
84775+}
84776+
84777+int
84778+gr_set_proc_label(const struct dentry *dentry, const struct vfsmount *mnt,
84779+ const int unsafe_share)
84780+{
84781+ return 0;
84782+}
84783+
84784+void
84785+gr_handle_delete(const u64 ino, const dev_t dev)
84786+{
84787+ return;
84788+}
84789+
84790+void
84791+gr_handle_create(const struct dentry *dentry, const struct vfsmount *mnt)
84792+{
84793+ return;
84794+}
84795+
84796+void
84797+gr_handle_crash(struct task_struct *task, const int sig)
84798+{
84799+ return;
84800+}
84801+
84802+int
84803+gr_check_crash_exec(const struct file *filp)
84804+{
84805+ return 0;
84806+}
84807+
84808+int
84809+gr_check_crash_uid(const kuid_t uid)
84810+{
84811+ return 0;
84812+}
84813+
84814+void
84815+gr_handle_rename(struct inode *old_dir, struct inode *new_dir,
84816+ struct dentry *old_dentry,
84817+ struct dentry *new_dentry,
84818+ struct vfsmount *mnt, const __u8 replace, unsigned int flags)
84819+{
84820+ return;
84821+}
84822+
84823+int
84824+gr_search_socket(const int family, const int type, const int protocol)
84825+{
84826+ return 1;
84827+}
84828+
84829+int
84830+gr_search_connectbind(const int mode, const struct socket *sock,
84831+ const struct sockaddr_in *addr)
84832+{
84833+ return 0;
84834+}
84835+
84836+void
84837+gr_handle_alertkill(struct task_struct *task)
84838+{
84839+ return;
84840+}
84841+
84842+__u32
84843+gr_acl_handle_execve(const struct dentry * dentry, const struct vfsmount * mnt)
84844+{
84845+ return 1;
84846+}
84847+
84848+__u32
84849+gr_acl_handle_hidden_file(const struct dentry * dentry,
84850+ const struct vfsmount * mnt)
84851+{
84852+ return 1;
84853+}
84854+
84855+__u32
84856+gr_acl_handle_open(const struct dentry * dentry, const struct vfsmount * mnt,
84857+ int acc_mode)
84858+{
84859+ return 1;
84860+}
84861+
84862+__u32
84863+gr_acl_handle_rmdir(const struct dentry * dentry, const struct vfsmount * mnt)
84864+{
84865+ return 1;
84866+}
84867+
84868+__u32
84869+gr_acl_handle_unlink(const struct dentry * dentry, const struct vfsmount * mnt)
84870+{
84871+ return 1;
84872+}
84873+
84874+int
84875+gr_acl_handle_mmap(const struct file *file, const unsigned long prot,
84876+ unsigned int *vm_flags)
84877+{
84878+ return 1;
84879+}
84880+
84881+__u32
84882+gr_acl_handle_truncate(const struct dentry * dentry,
84883+ const struct vfsmount * mnt)
84884+{
84885+ return 1;
84886+}
84887+
84888+__u32
84889+gr_acl_handle_utime(const struct dentry * dentry, const struct vfsmount * mnt)
84890+{
84891+ return 1;
84892+}
84893+
84894+__u32
84895+gr_acl_handle_access(const struct dentry * dentry,
84896+ const struct vfsmount * mnt, const int fmode)
84897+{
84898+ return 1;
84899+}
84900+
84901+__u32
84902+gr_acl_handle_chmod(const struct dentry * dentry, const struct vfsmount * mnt,
84903+ umode_t *mode)
84904+{
84905+ return 1;
84906+}
84907+
84908+__u32
84909+gr_acl_handle_chown(const struct dentry * dentry, const struct vfsmount * mnt)
84910+{
84911+ return 1;
84912+}
84913+
84914+__u32
84915+gr_acl_handle_setxattr(const struct dentry * dentry, const struct vfsmount * mnt)
84916+{
84917+ return 1;
84918+}
84919+
84920+__u32
84921+gr_acl_handle_removexattr(const struct dentry * dentry, const struct vfsmount * mnt)
84922+{
84923+ return 1;
84924+}
84925+
84926+void
84927+grsecurity_init(void)
84928+{
84929+ return;
84930+}
84931+
84932+umode_t gr_acl_umask(void)
84933+{
84934+ return 0;
84935+}
84936+
84937+__u32
84938+gr_acl_handle_mknod(const struct dentry * new_dentry,
84939+ const struct dentry * parent_dentry,
84940+ const struct vfsmount * parent_mnt,
84941+ const int mode)
84942+{
84943+ return 1;
84944+}
84945+
84946+__u32
84947+gr_acl_handle_mkdir(const struct dentry * new_dentry,
84948+ const struct dentry * parent_dentry,
84949+ const struct vfsmount * parent_mnt)
84950+{
84951+ return 1;
84952+}
84953+
84954+__u32
84955+gr_acl_handle_symlink(const struct dentry * new_dentry,
84956+ const struct dentry * parent_dentry,
84957+ const struct vfsmount * parent_mnt, const struct filename *from)
84958+{
84959+ return 1;
84960+}
84961+
84962+__u32
84963+gr_acl_handle_link(const struct dentry * new_dentry,
84964+ const struct dentry * parent_dentry,
84965+ const struct vfsmount * parent_mnt,
84966+ const struct dentry * old_dentry,
84967+ const struct vfsmount * old_mnt, const struct filename *to)
84968+{
84969+ return 1;
84970+}
84971+
84972+int
84973+gr_acl_handle_rename(const struct dentry *new_dentry,
84974+ const struct dentry *parent_dentry,
84975+ const struct vfsmount *parent_mnt,
84976+ const struct dentry *old_dentry,
84977+ const struct inode *old_parent_inode,
84978+ const struct vfsmount *old_mnt, const struct filename *newname,
84979+ unsigned int flags)
84980+{
84981+ return 0;
84982+}
84983+
84984+int
84985+gr_acl_handle_filldir(const struct file *file, const char *name,
84986+ const int namelen, const u64 ino)
84987+{
84988+ return 1;
84989+}
84990+
84991+int
84992+gr_handle_shmat(const pid_t shm_cprid, const pid_t shm_lapid,
84993+ const u64 shm_createtime, const kuid_t cuid, const int shmid)
84994+{
84995+ return 1;
84996+}
84997+
84998+int
84999+gr_search_bind(const struct socket *sock, const struct sockaddr_in *addr)
85000+{
85001+ return 0;
85002+}
85003+
85004+int
85005+gr_search_accept(const struct socket *sock)
85006+{
85007+ return 0;
85008+}
85009+
85010+int
85011+gr_search_listen(const struct socket *sock)
85012+{
85013+ return 0;
85014+}
85015+
85016+int
85017+gr_search_connect(const struct socket *sock, const struct sockaddr_in *addr)
85018+{
85019+ return 0;
85020+}
85021+
85022+__u32
85023+gr_acl_handle_unix(const struct dentry * dentry, const struct vfsmount * mnt)
85024+{
85025+ return 1;
85026+}
85027+
85028+__u32
85029+gr_acl_handle_creat(const struct dentry * dentry,
85030+ const struct dentry * p_dentry,
85031+ const struct vfsmount * p_mnt, int open_flags, int acc_mode,
85032+ const int imode)
85033+{
85034+ return 1;
85035+}
85036+
85037+void
85038+gr_acl_handle_exit(void)
85039+{
85040+ return;
85041+}
85042+
85043+int
85044+gr_acl_handle_mprotect(const struct file *file, const unsigned long prot)
85045+{
85046+ return 1;
85047+}
85048+
85049+void
85050+gr_set_role_label(const kuid_t uid, const kgid_t gid)
85051+{
85052+ return;
85053+}
85054+
85055+int
85056+gr_acl_handle_procpidmem(const struct task_struct *task)
85057+{
85058+ return 0;
85059+}
85060+
85061+int
85062+gr_search_udp_recvmsg(const struct sock *sk, const struct sk_buff *skb)
85063+{
85064+ return 0;
85065+}
85066+
85067+int
85068+gr_search_udp_sendmsg(const struct sock *sk, const struct sockaddr_in *addr)
85069+{
85070+ return 0;
85071+}
85072+
85073+int
85074+gr_check_user_change(kuid_t real, kuid_t effective, kuid_t fs)
85075+{
85076+ return 0;
85077+}
85078+
85079+int
85080+gr_check_group_change(kgid_t real, kgid_t effective, kgid_t fs)
85081+{
85082+ return 0;
85083+}
85084+
85085+int gr_acl_enable_at_secure(void)
85086+{
85087+ return 0;
85088+}
85089+
85090+dev_t gr_get_dev_from_dentry(struct dentry *dentry)
85091+{
85092+ return dentry->d_sb->s_dev;
85093+}
85094+
85095+u64 gr_get_ino_from_dentry(struct dentry *dentry)
85096+{
85097+ return dentry->d_inode->i_ino;
85098+}
85099+
85100+void gr_put_exec_file(struct task_struct *task)
85101+{
85102+ return;
85103+}
85104+
85105+#ifdef CONFIG_SECURITY
85106+EXPORT_SYMBOL_GPL(gr_check_user_change);
85107+EXPORT_SYMBOL_GPL(gr_check_group_change);
85108+#endif
85109diff --git a/grsecurity/grsec_exec.c b/grsecurity/grsec_exec.c
85110new file mode 100644
85111index 0000000..fb7531e
85112--- /dev/null
85113+++ b/grsecurity/grsec_exec.c
85114@@ -0,0 +1,189 @@
85115+#include <linux/kernel.h>
85116+#include <linux/sched.h>
85117+#include <linux/file.h>
85118+#include <linux/binfmts.h>
85119+#include <linux/fs.h>
85120+#include <linux/types.h>
85121+#include <linux/grdefs.h>
85122+#include <linux/grsecurity.h>
85123+#include <linux/grinternal.h>
85124+#include <linux/capability.h>
85125+#include <linux/module.h>
85126+#include <linux/compat.h>
85127+
85128+#include <asm/uaccess.h>
85129+
85130+#ifdef CONFIG_GRKERNSEC_EXECLOG
85131+static char gr_exec_arg_buf[132];
85132+static DEFINE_MUTEX(gr_exec_arg_mutex);
85133+#endif
85134+
85135+struct user_arg_ptr {
85136+#ifdef CONFIG_COMPAT
85137+ bool is_compat;
85138+#endif
85139+ union {
85140+ const char __user *const __user *native;
85141+#ifdef CONFIG_COMPAT
85142+ const compat_uptr_t __user *compat;
85143+#endif
85144+ } ptr;
85145+};
85146+
85147+extern const char __user *get_user_arg_ptr(struct user_arg_ptr argv, int nr);
85148+
85149+void
85150+gr_handle_exec_args(struct linux_binprm *bprm, struct user_arg_ptr argv)
85151+{
85152+#ifdef CONFIG_GRKERNSEC_EXECLOG
85153+ char *grarg = gr_exec_arg_buf;
85154+ unsigned int i, x, execlen = 0;
85155+ char c;
85156+
85157+ if (!((grsec_enable_execlog && grsec_enable_group &&
85158+ in_group_p(grsec_audit_gid))
85159+ || (grsec_enable_execlog && !grsec_enable_group)))
85160+ return;
85161+
85162+ mutex_lock(&gr_exec_arg_mutex);
85163+ memset(grarg, 0, sizeof(gr_exec_arg_buf));
85164+
85165+ for (i = 0; i < bprm->argc && execlen < 128; i++) {
85166+ const char __user *p;
85167+ unsigned int len;
85168+
85169+ p = get_user_arg_ptr(argv, i);
85170+ if (IS_ERR(p))
85171+ goto log;
85172+
85173+ len = strnlen_user(p, 128 - execlen);
85174+ if (len > 128 - execlen)
85175+ len = 128 - execlen;
85176+ else if (len > 0)
85177+ len--;
85178+ if (copy_from_user(grarg + execlen, p, len))
85179+ goto log;
85180+
85181+ /* rewrite unprintable characters */
85182+ for (x = 0; x < len; x++) {
85183+ c = *(grarg + execlen + x);
85184+ if (c < 32 || c > 126)
85185+ *(grarg + execlen + x) = ' ';
85186+ }
85187+
85188+ execlen += len;
85189+ *(grarg + execlen) = ' ';
85190+ *(grarg + execlen + 1) = '\0';
85191+ execlen++;
85192+ }
85193+
85194+ log:
85195+ gr_log_fs_str(GR_DO_AUDIT, GR_EXEC_AUDIT_MSG, bprm->file->f_path.dentry,
85196+ bprm->file->f_path.mnt, grarg);
85197+ mutex_unlock(&gr_exec_arg_mutex);
85198+#endif
85199+ return;
85200+}
85201+
85202+#ifdef CONFIG_GRKERNSEC
85203+extern int gr_acl_is_capable(const int cap);
85204+extern int gr_acl_is_capable_nolog(const int cap);
85205+extern int gr_task_acl_is_capable(const struct task_struct *task, const struct cred *cred, const int cap);
85206+extern int gr_task_acl_is_capable_nolog(const struct task_struct *task, const int cap);
85207+extern int gr_chroot_is_capable(const int cap);
85208+extern int gr_chroot_is_capable_nolog(const int cap);
85209+extern int gr_task_chroot_is_capable(const struct task_struct *task, const struct cred *cred, const int cap);
85210+extern int gr_task_chroot_is_capable_nolog(const struct task_struct *task, const int cap);
85211+#endif
85212+
85213+const char *captab_log[] = {
85214+ "CAP_CHOWN",
85215+ "CAP_DAC_OVERRIDE",
85216+ "CAP_DAC_READ_SEARCH",
85217+ "CAP_FOWNER",
85218+ "CAP_FSETID",
85219+ "CAP_KILL",
85220+ "CAP_SETGID",
85221+ "CAP_SETUID",
85222+ "CAP_SETPCAP",
85223+ "CAP_LINUX_IMMUTABLE",
85224+ "CAP_NET_BIND_SERVICE",
85225+ "CAP_NET_BROADCAST",
85226+ "CAP_NET_ADMIN",
85227+ "CAP_NET_RAW",
85228+ "CAP_IPC_LOCK",
85229+ "CAP_IPC_OWNER",
85230+ "CAP_SYS_MODULE",
85231+ "CAP_SYS_RAWIO",
85232+ "CAP_SYS_CHROOT",
85233+ "CAP_SYS_PTRACE",
85234+ "CAP_SYS_PACCT",
85235+ "CAP_SYS_ADMIN",
85236+ "CAP_SYS_BOOT",
85237+ "CAP_SYS_NICE",
85238+ "CAP_SYS_RESOURCE",
85239+ "CAP_SYS_TIME",
85240+ "CAP_SYS_TTY_CONFIG",
85241+ "CAP_MKNOD",
85242+ "CAP_LEASE",
85243+ "CAP_AUDIT_WRITE",
85244+ "CAP_AUDIT_CONTROL",
85245+ "CAP_SETFCAP",
85246+ "CAP_MAC_OVERRIDE",
85247+ "CAP_MAC_ADMIN",
85248+ "CAP_SYSLOG",
85249+ "CAP_WAKE_ALARM",
85250+ "CAP_BLOCK_SUSPEND",
85251+ "CAP_AUDIT_READ"
85252+};
85253+
85254+int captab_log_entries = sizeof(captab_log)/sizeof(captab_log[0]);
85255+
85256+int gr_is_capable(const int cap)
85257+{
85258+#ifdef CONFIG_GRKERNSEC
85259+ if (gr_acl_is_capable(cap) && gr_chroot_is_capable(cap))
85260+ return 1;
85261+ return 0;
85262+#else
85263+ return 1;
85264+#endif
85265+}
85266+
85267+int gr_task_is_capable(const struct task_struct *task, const struct cred *cred, const int cap)
85268+{
85269+#ifdef CONFIG_GRKERNSEC
85270+ if (gr_task_acl_is_capable(task, cred, cap) && gr_task_chroot_is_capable(task, cred, cap))
85271+ return 1;
85272+ return 0;
85273+#else
85274+ return 1;
85275+#endif
85276+}
85277+
85278+int gr_is_capable_nolog(const int cap)
85279+{
85280+#ifdef CONFIG_GRKERNSEC
85281+ if (gr_acl_is_capable_nolog(cap) && gr_chroot_is_capable_nolog(cap))
85282+ return 1;
85283+ return 0;
85284+#else
85285+ return 1;
85286+#endif
85287+}
85288+
85289+int gr_task_is_capable_nolog(const struct task_struct *task, const int cap)
85290+{
85291+#ifdef CONFIG_GRKERNSEC
85292+ if (gr_task_acl_is_capable_nolog(task, cap) && gr_task_chroot_is_capable_nolog(task, cap))
85293+ return 1;
85294+ return 0;
85295+#else
85296+ return 1;
85297+#endif
85298+}
85299+
85300+EXPORT_SYMBOL_GPL(gr_is_capable);
85301+EXPORT_SYMBOL_GPL(gr_is_capable_nolog);
85302+EXPORT_SYMBOL_GPL(gr_task_is_capable);
85303+EXPORT_SYMBOL_GPL(gr_task_is_capable_nolog);
85304diff --git a/grsecurity/grsec_fifo.c b/grsecurity/grsec_fifo.c
85305new file mode 100644
85306index 0000000..06cc6ea
85307--- /dev/null
85308+++ b/grsecurity/grsec_fifo.c
85309@@ -0,0 +1,24 @@
85310+#include <linux/kernel.h>
85311+#include <linux/sched.h>
85312+#include <linux/fs.h>
85313+#include <linux/file.h>
85314+#include <linux/grinternal.h>
85315+
85316+int
85317+gr_handle_fifo(const struct dentry *dentry, const struct vfsmount *mnt,
85318+ const struct dentry *dir, const int flag, const int acc_mode)
85319+{
85320+#ifdef CONFIG_GRKERNSEC_FIFO
85321+ const struct cred *cred = current_cred();
85322+
85323+ if (grsec_enable_fifo && S_ISFIFO(dentry->d_inode->i_mode) &&
85324+ !(flag & O_EXCL) && (dir->d_inode->i_mode & S_ISVTX) &&
85325+ !uid_eq(dentry->d_inode->i_uid, dir->d_inode->i_uid) &&
85326+ !uid_eq(cred->fsuid, dentry->d_inode->i_uid)) {
85327+ if (!inode_permission(dentry->d_inode, acc_mode))
85328+ gr_log_fs_int2(GR_DONT_AUDIT, GR_FIFO_MSG, dentry, mnt, GR_GLOBAL_UID(dentry->d_inode->i_uid), GR_GLOBAL_GID(dentry->d_inode->i_gid));
85329+ return -EACCES;
85330+ }
85331+#endif
85332+ return 0;
85333+}
85334diff --git a/grsecurity/grsec_fork.c b/grsecurity/grsec_fork.c
85335new file mode 100644
85336index 0000000..8ca18bf
85337--- /dev/null
85338+++ b/grsecurity/grsec_fork.c
85339@@ -0,0 +1,23 @@
85340+#include <linux/kernel.h>
85341+#include <linux/sched.h>
85342+#include <linux/grsecurity.h>
85343+#include <linux/grinternal.h>
85344+#include <linux/errno.h>
85345+
85346+void
85347+gr_log_forkfail(const int retval)
85348+{
85349+#ifdef CONFIG_GRKERNSEC_FORKFAIL
85350+ if (grsec_enable_forkfail && (retval == -EAGAIN || retval == -ENOMEM)) {
85351+ switch (retval) {
85352+ case -EAGAIN:
85353+ gr_log_str(GR_DONT_AUDIT, GR_FAILFORK_MSG, "EAGAIN");
85354+ break;
85355+ case -ENOMEM:
85356+ gr_log_str(GR_DONT_AUDIT, GR_FAILFORK_MSG, "ENOMEM");
85357+ break;
85358+ }
85359+ }
85360+#endif
85361+ return;
85362+}
85363diff --git a/grsecurity/grsec_init.c b/grsecurity/grsec_init.c
85364new file mode 100644
85365index 0000000..4ed9e7d
85366--- /dev/null
85367+++ b/grsecurity/grsec_init.c
85368@@ -0,0 +1,290 @@
85369+#include <linux/kernel.h>
85370+#include <linux/sched.h>
85371+#include <linux/mm.h>
85372+#include <linux/gracl.h>
85373+#include <linux/slab.h>
85374+#include <linux/vmalloc.h>
85375+#include <linux/percpu.h>
85376+#include <linux/module.h>
85377+
85378+int grsec_enable_ptrace_readexec;
85379+int grsec_enable_setxid;
85380+int grsec_enable_symlinkown;
85381+kgid_t grsec_symlinkown_gid;
85382+int grsec_enable_brute;
85383+int grsec_enable_link;
85384+int grsec_enable_dmesg;
85385+int grsec_enable_harden_ptrace;
85386+int grsec_enable_harden_ipc;
85387+int grsec_enable_fifo;
85388+int grsec_enable_execlog;
85389+int grsec_enable_signal;
85390+int grsec_enable_forkfail;
85391+int grsec_enable_audit_ptrace;
85392+int grsec_enable_time;
85393+int grsec_enable_group;
85394+kgid_t grsec_audit_gid;
85395+int grsec_enable_chdir;
85396+int grsec_enable_mount;
85397+int grsec_enable_rofs;
85398+int grsec_deny_new_usb;
85399+int grsec_enable_chroot_findtask;
85400+int grsec_enable_chroot_mount;
85401+int grsec_enable_chroot_shmat;
85402+int grsec_enable_chroot_fchdir;
85403+int grsec_enable_chroot_double;
85404+int grsec_enable_chroot_pivot;
85405+int grsec_enable_chroot_chdir;
85406+int grsec_enable_chroot_chmod;
85407+int grsec_enable_chroot_mknod;
85408+int grsec_enable_chroot_nice;
85409+int grsec_enable_chroot_execlog;
85410+int grsec_enable_chroot_caps;
85411+int grsec_enable_chroot_rename;
85412+int grsec_enable_chroot_sysctl;
85413+int grsec_enable_chroot_unix;
85414+int grsec_enable_tpe;
85415+kgid_t grsec_tpe_gid;
85416+int grsec_enable_blackhole;
85417+#ifdef CONFIG_IPV6_MODULE
85418+EXPORT_SYMBOL_GPL(grsec_enable_blackhole);
85419+#endif
85420+int grsec_lastack_retries;
85421+int grsec_enable_tpe_all;
85422+int grsec_enable_tpe_invert;
85423+int grsec_enable_socket_all;
85424+kgid_t grsec_socket_all_gid;
85425+int grsec_enable_socket_client;
85426+kgid_t grsec_socket_client_gid;
85427+int grsec_enable_socket_server;
85428+kgid_t grsec_socket_server_gid;
85429+int grsec_resource_logging;
85430+int grsec_disable_privio;
85431+int grsec_enable_log_rwxmaps;
85432+int grsec_lock;
85433+
85434+DEFINE_SPINLOCK(grsec_alert_lock);
85435+unsigned long grsec_alert_wtime = 0;
85436+unsigned long grsec_alert_fyet = 0;
85437+
85438+DEFINE_SPINLOCK(grsec_audit_lock);
85439+
85440+DEFINE_RWLOCK(grsec_exec_file_lock);
85441+
85442+char *gr_shared_page[4];
85443+
85444+char *gr_alert_log_fmt;
85445+char *gr_audit_log_fmt;
85446+char *gr_alert_log_buf;
85447+char *gr_audit_log_buf;
85448+
85449+extern struct gr_arg *gr_usermode;
85450+extern unsigned char *gr_system_salt;
85451+extern unsigned char *gr_system_sum;
85452+
85453+void __init
85454+grsecurity_init(void)
85455+{
85456+ int j;
85457+ /* create the per-cpu shared pages */
85458+
85459+#ifdef CONFIG_X86
85460+ memset((char *)(0x41a + PAGE_OFFSET), 0, 36);
85461+#endif
85462+
85463+ for (j = 0; j < 4; j++) {
85464+ gr_shared_page[j] = (char *)__alloc_percpu(PAGE_SIZE, __alignof__(unsigned long long));
85465+ if (gr_shared_page[j] == NULL) {
85466+ panic("Unable to allocate grsecurity shared page");
85467+ return;
85468+ }
85469+ }
85470+
85471+ /* allocate log buffers */
85472+ gr_alert_log_fmt = kmalloc(512, GFP_KERNEL);
85473+ if (!gr_alert_log_fmt) {
85474+ panic("Unable to allocate grsecurity alert log format buffer");
85475+ return;
85476+ }
85477+ gr_audit_log_fmt = kmalloc(512, GFP_KERNEL);
85478+ if (!gr_audit_log_fmt) {
85479+ panic("Unable to allocate grsecurity audit log format buffer");
85480+ return;
85481+ }
85482+ gr_alert_log_buf = (char *) get_zeroed_page(GFP_KERNEL);
85483+ if (!gr_alert_log_buf) {
85484+ panic("Unable to allocate grsecurity alert log buffer");
85485+ return;
85486+ }
85487+ gr_audit_log_buf = (char *) get_zeroed_page(GFP_KERNEL);
85488+ if (!gr_audit_log_buf) {
85489+ panic("Unable to allocate grsecurity audit log buffer");
85490+ return;
85491+ }
85492+
85493+ /* allocate memory for authentication structure */
85494+ gr_usermode = kmalloc(sizeof(struct gr_arg), GFP_KERNEL);
85495+ gr_system_salt = kmalloc(GR_SALT_LEN, GFP_KERNEL);
85496+ gr_system_sum = kmalloc(GR_SHA_LEN, GFP_KERNEL);
85497+
85498+ if (!gr_usermode || !gr_system_salt || !gr_system_sum) {
85499+ panic("Unable to allocate grsecurity authentication structure");
85500+ return;
85501+ }
85502+
85503+#ifdef CONFIG_GRKERNSEC_IO
85504+#if !defined(CONFIG_GRKERNSEC_SYSCTL_DISTRO)
85505+ grsec_disable_privio = 1;
85506+#elif defined(CONFIG_GRKERNSEC_SYSCTL_ON)
85507+ grsec_disable_privio = 1;
85508+#else
85509+ grsec_disable_privio = 0;
85510+#endif
85511+#endif
85512+
85513+#ifdef CONFIG_GRKERNSEC_TPE_INVERT
85514+ /* for backward compatibility, tpe_invert always defaults to on if
85515+ enabled in the kernel
85516+ */
85517+ grsec_enable_tpe_invert = 1;
85518+#endif
85519+
85520+#if !defined(CONFIG_GRKERNSEC_SYSCTL) || defined(CONFIG_GRKERNSEC_SYSCTL_ON)
85521+#ifndef CONFIG_GRKERNSEC_SYSCTL
85522+ grsec_lock = 1;
85523+#endif
85524+
85525+#ifdef CONFIG_GRKERNSEC_RWXMAP_LOG
85526+ grsec_enable_log_rwxmaps = 1;
85527+#endif
85528+#ifdef CONFIG_GRKERNSEC_AUDIT_GROUP
85529+ grsec_enable_group = 1;
85530+ grsec_audit_gid = KGIDT_INIT(CONFIG_GRKERNSEC_AUDIT_GID);
85531+#endif
85532+#ifdef CONFIG_GRKERNSEC_PTRACE_READEXEC
85533+ grsec_enable_ptrace_readexec = 1;
85534+#endif
85535+#ifdef CONFIG_GRKERNSEC_AUDIT_CHDIR
85536+ grsec_enable_chdir = 1;
85537+#endif
85538+#ifdef CONFIG_GRKERNSEC_HARDEN_PTRACE
85539+ grsec_enable_harden_ptrace = 1;
85540+#endif
85541+#ifdef CONFIG_GRKERNSEC_HARDEN_IPC
85542+ grsec_enable_harden_ipc = 1;
85543+#endif
85544+#ifdef CONFIG_GRKERNSEC_AUDIT_MOUNT
85545+ grsec_enable_mount = 1;
85546+#endif
85547+#ifdef CONFIG_GRKERNSEC_LINK
85548+ grsec_enable_link = 1;
85549+#endif
85550+#ifdef CONFIG_GRKERNSEC_BRUTE
85551+ grsec_enable_brute = 1;
85552+#endif
85553+#ifdef CONFIG_GRKERNSEC_DMESG
85554+ grsec_enable_dmesg = 1;
85555+#endif
85556+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
85557+ grsec_enable_blackhole = 1;
85558+ grsec_lastack_retries = 4;
85559+#endif
85560+#ifdef CONFIG_GRKERNSEC_FIFO
85561+ grsec_enable_fifo = 1;
85562+#endif
85563+#ifdef CONFIG_GRKERNSEC_EXECLOG
85564+ grsec_enable_execlog = 1;
85565+#endif
85566+#ifdef CONFIG_GRKERNSEC_SETXID
85567+ grsec_enable_setxid = 1;
85568+#endif
85569+#ifdef CONFIG_GRKERNSEC_SIGNAL
85570+ grsec_enable_signal = 1;
85571+#endif
85572+#ifdef CONFIG_GRKERNSEC_FORKFAIL
85573+ grsec_enable_forkfail = 1;
85574+#endif
85575+#ifdef CONFIG_GRKERNSEC_TIME
85576+ grsec_enable_time = 1;
85577+#endif
85578+#ifdef CONFIG_GRKERNSEC_RESLOG
85579+ grsec_resource_logging = 1;
85580+#endif
85581+#ifdef CONFIG_GRKERNSEC_CHROOT_FINDTASK
85582+ grsec_enable_chroot_findtask = 1;
85583+#endif
85584+#ifdef CONFIG_GRKERNSEC_CHROOT_UNIX
85585+ grsec_enable_chroot_unix = 1;
85586+#endif
85587+#ifdef CONFIG_GRKERNSEC_CHROOT_MOUNT
85588+ grsec_enable_chroot_mount = 1;
85589+#endif
85590+#ifdef CONFIG_GRKERNSEC_CHROOT_FCHDIR
85591+ grsec_enable_chroot_fchdir = 1;
85592+#endif
85593+#ifdef CONFIG_GRKERNSEC_CHROOT_SHMAT
85594+ grsec_enable_chroot_shmat = 1;
85595+#endif
85596+#ifdef CONFIG_GRKERNSEC_AUDIT_PTRACE
85597+ grsec_enable_audit_ptrace = 1;
85598+#endif
85599+#ifdef CONFIG_GRKERNSEC_CHROOT_DOUBLE
85600+ grsec_enable_chroot_double = 1;
85601+#endif
85602+#ifdef CONFIG_GRKERNSEC_CHROOT_PIVOT
85603+ grsec_enable_chroot_pivot = 1;
85604+#endif
85605+#ifdef CONFIG_GRKERNSEC_CHROOT_CHDIR
85606+ grsec_enable_chroot_chdir = 1;
85607+#endif
85608+#ifdef CONFIG_GRKERNSEC_CHROOT_CHMOD
85609+ grsec_enable_chroot_chmod = 1;
85610+#endif
85611+#ifdef CONFIG_GRKERNSEC_CHROOT_MKNOD
85612+ grsec_enable_chroot_mknod = 1;
85613+#endif
85614+#ifdef CONFIG_GRKERNSEC_CHROOT_NICE
85615+ grsec_enable_chroot_nice = 1;
85616+#endif
85617+#ifdef CONFIG_GRKERNSEC_CHROOT_EXECLOG
85618+ grsec_enable_chroot_execlog = 1;
85619+#endif
85620+#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS
85621+ grsec_enable_chroot_caps = 1;
85622+#endif
85623+#ifdef CONFIG_GRKERNSEC_CHROOT_RENAME
85624+ grsec_enable_chroot_rename = 1;
85625+#endif
85626+#ifdef CONFIG_GRKERNSEC_CHROOT_SYSCTL
85627+ grsec_enable_chroot_sysctl = 1;
85628+#endif
85629+#ifdef CONFIG_GRKERNSEC_SYMLINKOWN
85630+ grsec_enable_symlinkown = 1;
85631+ grsec_symlinkown_gid = KGIDT_INIT(CONFIG_GRKERNSEC_SYMLINKOWN_GID);
85632+#endif
85633+#ifdef CONFIG_GRKERNSEC_TPE
85634+ grsec_enable_tpe = 1;
85635+ grsec_tpe_gid = KGIDT_INIT(CONFIG_GRKERNSEC_TPE_GID);
85636+#ifdef CONFIG_GRKERNSEC_TPE_ALL
85637+ grsec_enable_tpe_all = 1;
85638+#endif
85639+#endif
85640+#ifdef CONFIG_GRKERNSEC_SOCKET_ALL
85641+ grsec_enable_socket_all = 1;
85642+ grsec_socket_all_gid = KGIDT_INIT(CONFIG_GRKERNSEC_SOCKET_ALL_GID);
85643+#endif
85644+#ifdef CONFIG_GRKERNSEC_SOCKET_CLIENT
85645+ grsec_enable_socket_client = 1;
85646+ grsec_socket_client_gid = KGIDT_INIT(CONFIG_GRKERNSEC_SOCKET_CLIENT_GID);
85647+#endif
85648+#ifdef CONFIG_GRKERNSEC_SOCKET_SERVER
85649+ grsec_enable_socket_server = 1;
85650+ grsec_socket_server_gid = KGIDT_INIT(CONFIG_GRKERNSEC_SOCKET_SERVER_GID);
85651+#endif
85652+#endif
85653+#ifdef CONFIG_GRKERNSEC_DENYUSB_FORCE
85654+ grsec_deny_new_usb = 1;
85655+#endif
85656+
85657+ return;
85658+}
85659diff --git a/grsecurity/grsec_ipc.c b/grsecurity/grsec_ipc.c
85660new file mode 100644
85661index 0000000..1773300
85662--- /dev/null
85663+++ b/grsecurity/grsec_ipc.c
85664@@ -0,0 +1,48 @@
85665+#include <linux/kernel.h>
85666+#include <linux/mm.h>
85667+#include <linux/sched.h>
85668+#include <linux/file.h>
85669+#include <linux/ipc.h>
85670+#include <linux/ipc_namespace.h>
85671+#include <linux/grsecurity.h>
85672+#include <linux/grinternal.h>
85673+
85674+int
85675+gr_ipc_permitted(struct ipc_namespace *ns, struct kern_ipc_perm *ipcp, int requested_mode, int granted_mode)
85676+{
85677+#ifdef CONFIG_GRKERNSEC_HARDEN_IPC
85678+ int write;
85679+ int orig_granted_mode;
85680+ kuid_t euid;
85681+ kgid_t egid;
85682+
85683+ if (!grsec_enable_harden_ipc)
85684+ return 1;
85685+
85686+ euid = current_euid();
85687+ egid = current_egid();
85688+
85689+ write = requested_mode & 00002;
85690+ orig_granted_mode = ipcp->mode;
85691+
85692+ if (uid_eq(euid, ipcp->cuid) || uid_eq(euid, ipcp->uid))
85693+ orig_granted_mode >>= 6;
85694+ else {
85695+ /* if likely wrong permissions, lock to user */
85696+ if (orig_granted_mode & 0007)
85697+ orig_granted_mode = 0;
85698+ /* otherwise do a egid-only check */
85699+ else if (gid_eq(egid, ipcp->cgid) || gid_eq(egid, ipcp->gid))
85700+ orig_granted_mode >>= 3;
85701+ /* otherwise, no access */
85702+ else
85703+ orig_granted_mode = 0;
85704+ }
85705+ if (!(requested_mode & ~granted_mode & 0007) && (requested_mode & ~orig_granted_mode & 0007) &&
85706+ !ns_capable_nolog(ns->user_ns, CAP_IPC_OWNER)) {
85707+ gr_log_str_int(GR_DONT_AUDIT, GR_IPC_DENIED_MSG, write ? "write" : "read", GR_GLOBAL_UID(ipcp->cuid));
85708+ return 0;
85709+ }
85710+#endif
85711+ return 1;
85712+}
85713diff --git a/grsecurity/grsec_link.c b/grsecurity/grsec_link.c
85714new file mode 100644
85715index 0000000..5e05e20
85716--- /dev/null
85717+++ b/grsecurity/grsec_link.c
85718@@ -0,0 +1,58 @@
85719+#include <linux/kernel.h>
85720+#include <linux/sched.h>
85721+#include <linux/fs.h>
85722+#include <linux/file.h>
85723+#include <linux/grinternal.h>
85724+
85725+int gr_handle_symlink_owner(const struct path *link, const struct inode *target)
85726+{
85727+#ifdef CONFIG_GRKERNSEC_SYMLINKOWN
85728+ const struct inode *link_inode = link->dentry->d_inode;
85729+
85730+ if (grsec_enable_symlinkown && in_group_p(grsec_symlinkown_gid) &&
85731+ /* ignore root-owned links, e.g. /proc/self */
85732+ gr_is_global_nonroot(link_inode->i_uid) && target &&
85733+ !uid_eq(link_inode->i_uid, target->i_uid)) {
85734+ gr_log_fs_int2(GR_DONT_AUDIT, GR_SYMLINKOWNER_MSG, link->dentry, link->mnt, link_inode->i_uid, target->i_uid);
85735+ return 1;
85736+ }
85737+#endif
85738+ return 0;
85739+}
85740+
85741+int
85742+gr_handle_follow_link(const struct inode *parent,
85743+ const struct inode *inode,
85744+ const struct dentry *dentry, const struct vfsmount *mnt)
85745+{
85746+#ifdef CONFIG_GRKERNSEC_LINK
85747+ const struct cred *cred = current_cred();
85748+
85749+ if (grsec_enable_link && S_ISLNK(inode->i_mode) &&
85750+ (parent->i_mode & S_ISVTX) && !uid_eq(parent->i_uid, inode->i_uid) &&
85751+ (parent->i_mode & S_IWOTH) && !uid_eq(cred->fsuid, inode->i_uid)) {
85752+ gr_log_fs_int2(GR_DONT_AUDIT, GR_SYMLINK_MSG, dentry, mnt, inode->i_uid, inode->i_gid);
85753+ return -EACCES;
85754+ }
85755+#endif
85756+ return 0;
85757+}
85758+
85759+int
85760+gr_handle_hardlink(const struct dentry *dentry,
85761+ const struct vfsmount *mnt,
85762+ struct inode *inode, const int mode, const struct filename *to)
85763+{
85764+#ifdef CONFIG_GRKERNSEC_LINK
85765+ const struct cred *cred = current_cred();
85766+
85767+ if (grsec_enable_link && !uid_eq(cred->fsuid, inode->i_uid) &&
85768+ (!S_ISREG(mode) || is_privileged_binary(dentry) ||
85769+ (inode_permission(inode, MAY_READ | MAY_WRITE))) &&
85770+ !capable(CAP_FOWNER) && gr_is_global_nonroot(cred->uid)) {
85771+ gr_log_fs_int2_str(GR_DONT_AUDIT, GR_HARDLINK_MSG, dentry, mnt, inode->i_uid, inode->i_gid, to->name);
85772+ return -EPERM;
85773+ }
85774+#endif
85775+ return 0;
85776+}
85777diff --git a/grsecurity/grsec_log.c b/grsecurity/grsec_log.c
85778new file mode 100644
85779index 0000000..dbe0a6b
85780--- /dev/null
85781+++ b/grsecurity/grsec_log.c
85782@@ -0,0 +1,341 @@
85783+#include <linux/kernel.h>
85784+#include <linux/sched.h>
85785+#include <linux/file.h>
85786+#include <linux/tty.h>
85787+#include <linux/fs.h>
85788+#include <linux/mm.h>
85789+#include <linux/grinternal.h>
85790+
85791+#ifdef CONFIG_TREE_PREEMPT_RCU
85792+#define DISABLE_PREEMPT() preempt_disable()
85793+#define ENABLE_PREEMPT() preempt_enable()
85794+#else
85795+#define DISABLE_PREEMPT()
85796+#define ENABLE_PREEMPT()
85797+#endif
85798+
85799+#define BEGIN_LOCKS(x) \
85800+ DISABLE_PREEMPT(); \
85801+ rcu_read_lock(); \
85802+ read_lock(&tasklist_lock); \
85803+ read_lock(&grsec_exec_file_lock); \
85804+ if (x != GR_DO_AUDIT) \
85805+ spin_lock(&grsec_alert_lock); \
85806+ else \
85807+ spin_lock(&grsec_audit_lock)
85808+
85809+#define END_LOCKS(x) \
85810+ if (x != GR_DO_AUDIT) \
85811+ spin_unlock(&grsec_alert_lock); \
85812+ else \
85813+ spin_unlock(&grsec_audit_lock); \
85814+ read_unlock(&grsec_exec_file_lock); \
85815+ read_unlock(&tasklist_lock); \
85816+ rcu_read_unlock(); \
85817+ ENABLE_PREEMPT(); \
85818+ if (x == GR_DONT_AUDIT) \
85819+ gr_handle_alertkill(current)
85820+
85821+enum {
85822+ FLOODING,
85823+ NO_FLOODING
85824+};
85825+
85826+extern char *gr_alert_log_fmt;
85827+extern char *gr_audit_log_fmt;
85828+extern char *gr_alert_log_buf;
85829+extern char *gr_audit_log_buf;
85830+
85831+static int gr_log_start(int audit)
85832+{
85833+ char *loglevel = (audit == GR_DO_AUDIT) ? KERN_INFO : KERN_ALERT;
85834+ char *fmt = (audit == GR_DO_AUDIT) ? gr_audit_log_fmt : gr_alert_log_fmt;
85835+ char *buf = (audit == GR_DO_AUDIT) ? gr_audit_log_buf : gr_alert_log_buf;
85836+#if (CONFIG_GRKERNSEC_FLOODTIME > 0 && CONFIG_GRKERNSEC_FLOODBURST > 0)
85837+ unsigned long curr_secs = get_seconds();
85838+
85839+ if (audit == GR_DO_AUDIT)
85840+ goto set_fmt;
85841+
85842+ if (!grsec_alert_wtime || time_after(curr_secs, grsec_alert_wtime + CONFIG_GRKERNSEC_FLOODTIME)) {
85843+ grsec_alert_wtime = curr_secs;
85844+ grsec_alert_fyet = 0;
85845+ } else if (time_before_eq(curr_secs, grsec_alert_wtime + CONFIG_GRKERNSEC_FLOODTIME)
85846+ && (grsec_alert_fyet < CONFIG_GRKERNSEC_FLOODBURST)) {
85847+ grsec_alert_fyet++;
85848+ } else if (grsec_alert_fyet == CONFIG_GRKERNSEC_FLOODBURST) {
85849+ grsec_alert_wtime = curr_secs;
85850+ grsec_alert_fyet++;
85851+ printk(KERN_ALERT "grsec: more alerts, logging disabled for %d seconds\n", CONFIG_GRKERNSEC_FLOODTIME);
85852+ return FLOODING;
85853+ }
85854+ else return FLOODING;
85855+
85856+set_fmt:
85857+#endif
85858+ memset(buf, 0, PAGE_SIZE);
85859+ if (current->signal->curr_ip && gr_acl_is_enabled()) {
85860+ sprintf(fmt, "%s%s", loglevel, "grsec: From %pI4: (%.64s:%c:%.950s) ");
85861+ snprintf(buf, PAGE_SIZE - 1, fmt, &current->signal->curr_ip, current->role->rolename, gr_roletype_to_char(), current->acl->filename);
85862+ } else if (current->signal->curr_ip) {
85863+ sprintf(fmt, "%s%s", loglevel, "grsec: From %pI4: ");
85864+ snprintf(buf, PAGE_SIZE - 1, fmt, &current->signal->curr_ip);
85865+ } else if (gr_acl_is_enabled()) {
85866+ sprintf(fmt, "%s%s", loglevel, "grsec: (%.64s:%c:%.950s) ");
85867+ snprintf(buf, PAGE_SIZE - 1, fmt, current->role->rolename, gr_roletype_to_char(), current->acl->filename);
85868+ } else {
85869+ sprintf(fmt, "%s%s", loglevel, "grsec: ");
85870+ strcpy(buf, fmt);
85871+ }
85872+
85873+ return NO_FLOODING;
85874+}
85875+
85876+static void gr_log_middle(int audit, const char *msg, va_list ap)
85877+ __attribute__ ((format (printf, 2, 0)));
85878+
85879+static void gr_log_middle(int audit, const char *msg, va_list ap)
85880+{
85881+ char *buf = (audit == GR_DO_AUDIT) ? gr_audit_log_buf : gr_alert_log_buf;
85882+ unsigned int len = strlen(buf);
85883+
85884+ vsnprintf(buf + len, PAGE_SIZE - len - 1, msg, ap);
85885+
85886+ return;
85887+}
85888+
85889+static void gr_log_middle_varargs(int audit, const char *msg, ...)
85890+ __attribute__ ((format (printf, 2, 3)));
85891+
85892+static void gr_log_middle_varargs(int audit, const char *msg, ...)
85893+{
85894+ char *buf = (audit == GR_DO_AUDIT) ? gr_audit_log_buf : gr_alert_log_buf;
85895+ unsigned int len = strlen(buf);
85896+ va_list ap;
85897+
85898+ va_start(ap, msg);
85899+ vsnprintf(buf + len, PAGE_SIZE - len - 1, msg, ap);
85900+ va_end(ap);
85901+
85902+ return;
85903+}
85904+
85905+static void gr_log_end(int audit, int append_default)
85906+{
85907+ char *buf = (audit == GR_DO_AUDIT) ? gr_audit_log_buf : gr_alert_log_buf;
85908+ if (append_default) {
85909+ struct task_struct *task = current;
85910+ struct task_struct *parent = task->real_parent;
85911+ const struct cred *cred = __task_cred(task);
85912+ const struct cred *pcred = __task_cred(parent);
85913+ unsigned int len = strlen(buf);
85914+
85915+ snprintf(buf + len, PAGE_SIZE - len - 1, DEFAULTSECMSG, gr_task_fullpath(task), task->comm, task_pid_nr(task), GR_GLOBAL_UID(cred->uid), GR_GLOBAL_UID(cred->euid), GR_GLOBAL_GID(cred->gid), GR_GLOBAL_GID(cred->egid), gr_parent_task_fullpath(task), parent->comm, task_pid_nr(task->real_parent), GR_GLOBAL_UID(pcred->uid), GR_GLOBAL_UID(pcred->euid), GR_GLOBAL_GID(pcred->gid), GR_GLOBAL_GID(pcred->egid));
85916+ }
85917+
85918+ printk("%s\n", buf);
85919+
85920+ return;
85921+}
85922+
85923+void gr_log_varargs(int audit, const char *msg, int argtypes, ...)
85924+{
85925+ int logtype;
85926+ char *result = (audit == GR_DO_AUDIT) ? "successful" : "denied";
85927+ char *str1 = NULL, *str2 = NULL, *str3 = NULL;
85928+ void *voidptr = NULL;
85929+ int num1 = 0, num2 = 0;
85930+ unsigned long ulong1 = 0, ulong2 = 0;
85931+ struct dentry *dentry = NULL;
85932+ struct vfsmount *mnt = NULL;
85933+ struct file *file = NULL;
85934+ struct task_struct *task = NULL;
85935+ struct vm_area_struct *vma = NULL;
85936+ const struct cred *cred, *pcred;
85937+ va_list ap;
85938+
85939+ BEGIN_LOCKS(audit);
85940+ logtype = gr_log_start(audit);
85941+ if (logtype == FLOODING) {
85942+ END_LOCKS(audit);
85943+ return;
85944+ }
85945+ va_start(ap, argtypes);
85946+ switch (argtypes) {
85947+ case GR_TTYSNIFF:
85948+ task = va_arg(ap, struct task_struct *);
85949+ gr_log_middle_varargs(audit, msg, &task->signal->curr_ip, gr_task_fullpath0(task), task->comm, task_pid_nr(task), gr_parent_task_fullpath0(task), task->real_parent->comm, task_pid_nr(task->real_parent));
85950+ break;
85951+ case GR_SYSCTL_HIDDEN:
85952+ str1 = va_arg(ap, char *);
85953+ gr_log_middle_varargs(audit, msg, result, str1);
85954+ break;
85955+ case GR_RBAC:
85956+ dentry = va_arg(ap, struct dentry *);
85957+ mnt = va_arg(ap, struct vfsmount *);
85958+ gr_log_middle_varargs(audit, msg, result, gr_to_filename(dentry, mnt));
85959+ break;
85960+ case GR_RBAC_STR:
85961+ dentry = va_arg(ap, struct dentry *);
85962+ mnt = va_arg(ap, struct vfsmount *);
85963+ str1 = va_arg(ap, char *);
85964+ gr_log_middle_varargs(audit, msg, result, gr_to_filename(dentry, mnt), str1);
85965+ break;
85966+ case GR_STR_RBAC:
85967+ str1 = va_arg(ap, char *);
85968+ dentry = va_arg(ap, struct dentry *);
85969+ mnt = va_arg(ap, struct vfsmount *);
85970+ gr_log_middle_varargs(audit, msg, result, str1, gr_to_filename(dentry, mnt));
85971+ break;
85972+ case GR_RBAC_MODE2:
85973+ dentry = va_arg(ap, struct dentry *);
85974+ mnt = va_arg(ap, struct vfsmount *);
85975+ str1 = va_arg(ap, char *);
85976+ str2 = va_arg(ap, char *);
85977+ gr_log_middle_varargs(audit, msg, result, gr_to_filename(dentry, mnt), str1, str2);
85978+ break;
85979+ case GR_RBAC_MODE3:
85980+ dentry = va_arg(ap, struct dentry *);
85981+ mnt = va_arg(ap, struct vfsmount *);
85982+ str1 = va_arg(ap, char *);
85983+ str2 = va_arg(ap, char *);
85984+ str3 = va_arg(ap, char *);
85985+ gr_log_middle_varargs(audit, msg, result, gr_to_filename(dentry, mnt), str1, str2, str3);
85986+ break;
85987+ case GR_FILENAME:
85988+ dentry = va_arg(ap, struct dentry *);
85989+ mnt = va_arg(ap, struct vfsmount *);
85990+ gr_log_middle_varargs(audit, msg, gr_to_filename(dentry, mnt));
85991+ break;
85992+ case GR_STR_FILENAME:
85993+ str1 = va_arg(ap, char *);
85994+ dentry = va_arg(ap, struct dentry *);
85995+ mnt = va_arg(ap, struct vfsmount *);
85996+ gr_log_middle_varargs(audit, msg, str1, gr_to_filename(dentry, mnt));
85997+ break;
85998+ case GR_FILENAME_STR:
85999+ dentry = va_arg(ap, struct dentry *);
86000+ mnt = va_arg(ap, struct vfsmount *);
86001+ str1 = va_arg(ap, char *);
86002+ gr_log_middle_varargs(audit, msg, gr_to_filename(dentry, mnt), str1);
86003+ break;
86004+ case GR_FILENAME_TWO_INT:
86005+ dentry = va_arg(ap, struct dentry *);
86006+ mnt = va_arg(ap, struct vfsmount *);
86007+ num1 = va_arg(ap, int);
86008+ num2 = va_arg(ap, int);
86009+ gr_log_middle_varargs(audit, msg, gr_to_filename(dentry, mnt), num1, num2);
86010+ break;
86011+ case GR_FILENAME_TWO_INT_STR:
86012+ dentry = va_arg(ap, struct dentry *);
86013+ mnt = va_arg(ap, struct vfsmount *);
86014+ num1 = va_arg(ap, int);
86015+ num2 = va_arg(ap, int);
86016+ str1 = va_arg(ap, char *);
86017+ gr_log_middle_varargs(audit, msg, gr_to_filename(dentry, mnt), num1, num2, str1);
86018+ break;
86019+ case GR_TEXTREL:
86020+ file = va_arg(ap, struct file *);
86021+ ulong1 = va_arg(ap, unsigned long);
86022+ ulong2 = va_arg(ap, unsigned long);
86023+ gr_log_middle_varargs(audit, msg, file ? gr_to_filename(file->f_path.dentry, file->f_path.mnt) : "<anonymous mapping>", ulong1, ulong2);
86024+ break;
86025+ case GR_PTRACE:
86026+ task = va_arg(ap, struct task_struct *);
86027+ gr_log_middle_varargs(audit, msg, task->exec_file ? gr_to_filename(task->exec_file->f_path.dentry, task->exec_file->f_path.mnt) : "(none)", task->comm, task_pid_nr(task));
86028+ break;
86029+ case GR_RESOURCE:
86030+ task = va_arg(ap, struct task_struct *);
86031+ cred = __task_cred(task);
86032+ pcred = __task_cred(task->real_parent);
86033+ ulong1 = va_arg(ap, unsigned long);
86034+ str1 = va_arg(ap, char *);
86035+ ulong2 = va_arg(ap, unsigned long);
86036+ gr_log_middle_varargs(audit, msg, ulong1, str1, ulong2, gr_task_fullpath(task), task->comm, task_pid_nr(task), GR_GLOBAL_UID(cred->uid), GR_GLOBAL_UID(cred->euid), GR_GLOBAL_GID(cred->gid), GR_GLOBAL_GID(cred->egid), gr_parent_task_fullpath(task), task->real_parent->comm, task_pid_nr(task->real_parent), GR_GLOBAL_UID(pcred->uid), GR_GLOBAL_UID(pcred->euid), GR_GLOBAL_GID(pcred->gid), GR_GLOBAL_GID(pcred->egid));
86037+ break;
86038+ case GR_CAP:
86039+ task = va_arg(ap, struct task_struct *);
86040+ cred = __task_cred(task);
86041+ pcred = __task_cred(task->real_parent);
86042+ str1 = va_arg(ap, char *);
86043+ gr_log_middle_varargs(audit, msg, str1, gr_task_fullpath(task), task->comm, task_pid_nr(task), GR_GLOBAL_UID(cred->uid), GR_GLOBAL_UID(cred->euid), GR_GLOBAL_GID(cred->gid), GR_GLOBAL_GID(cred->egid), gr_parent_task_fullpath(task), task->real_parent->comm, task_pid_nr(task->real_parent), GR_GLOBAL_UID(pcred->uid), GR_GLOBAL_UID(pcred->euid), GR_GLOBAL_GID(pcred->gid), GR_GLOBAL_GID(pcred->egid));
86044+ break;
86045+ case GR_SIG:
86046+ str1 = va_arg(ap, char *);
86047+ voidptr = va_arg(ap, void *);
86048+ gr_log_middle_varargs(audit, msg, str1, voidptr);
86049+ break;
86050+ case GR_SIG2:
86051+ task = va_arg(ap, struct task_struct *);
86052+ cred = __task_cred(task);
86053+ pcred = __task_cred(task->real_parent);
86054+ num1 = va_arg(ap, int);
86055+ gr_log_middle_varargs(audit, msg, num1, gr_task_fullpath0(task), task->comm, task_pid_nr(task), GR_GLOBAL_UID(cred->uid), GR_GLOBAL_UID(cred->euid), GR_GLOBAL_GID(cred->gid), GR_GLOBAL_GID(cred->egid), gr_parent_task_fullpath0(task), task->real_parent->comm, task_pid_nr(task->real_parent), GR_GLOBAL_UID(pcred->uid), GR_GLOBAL_UID(pcred->euid), GR_GLOBAL_GID(pcred->gid), GR_GLOBAL_GID(pcred->egid));
86056+ break;
86057+ case GR_CRASH1:
86058+ task = va_arg(ap, struct task_struct *);
86059+ cred = __task_cred(task);
86060+ pcred = __task_cred(task->real_parent);
86061+ ulong1 = va_arg(ap, unsigned long);
86062+ gr_log_middle_varargs(audit, msg, gr_task_fullpath(task), task->comm, task_pid_nr(task), GR_GLOBAL_UID(cred->uid), GR_GLOBAL_UID(cred->euid), GR_GLOBAL_GID(cred->gid), GR_GLOBAL_GID(cred->egid), gr_parent_task_fullpath(task), task->real_parent->comm, task_pid_nr(task->real_parent), GR_GLOBAL_UID(pcred->uid), GR_GLOBAL_UID(pcred->euid), GR_GLOBAL_GID(pcred->gid), GR_GLOBAL_GID(pcred->egid), GR_GLOBAL_UID(cred->uid), ulong1);
86063+ break;
86064+ case GR_CRASH2:
86065+ task = va_arg(ap, struct task_struct *);
86066+ cred = __task_cred(task);
86067+ pcred = __task_cred(task->real_parent);
86068+ ulong1 = va_arg(ap, unsigned long);
86069+ gr_log_middle_varargs(audit, msg, gr_task_fullpath(task), task->comm, task_pid_nr(task), GR_GLOBAL_UID(cred->uid), GR_GLOBAL_UID(cred->euid), GR_GLOBAL_GID(cred->gid), GR_GLOBAL_GID(cred->egid), gr_parent_task_fullpath(task), task->real_parent->comm, task_pid_nr(task->real_parent), GR_GLOBAL_UID(pcred->uid), GR_GLOBAL_UID(pcred->euid), GR_GLOBAL_GID(pcred->gid), GR_GLOBAL_GID(pcred->egid), ulong1);
86070+ break;
86071+ case GR_RWXMAP:
86072+ file = va_arg(ap, struct file *);
86073+ gr_log_middle_varargs(audit, msg, file ? gr_to_filename(file->f_path.dentry, file->f_path.mnt) : "<anonymous mapping>");
86074+ break;
86075+ case GR_RWXMAPVMA:
86076+ vma = va_arg(ap, struct vm_area_struct *);
86077+ if (vma->vm_file)
86078+ str1 = gr_to_filename(vma->vm_file->f_path.dentry, vma->vm_file->f_path.mnt);
86079+ else if (vma->vm_flags & (VM_GROWSDOWN | VM_GROWSUP))
86080+ str1 = "<stack>";
86081+ else if (vma->vm_start <= current->mm->brk &&
86082+ vma->vm_end >= current->mm->start_brk)
86083+ str1 = "<heap>";
86084+ else
86085+ str1 = "<anonymous mapping>";
86086+ gr_log_middle_varargs(audit, msg, str1);
86087+ break;
86088+ case GR_PSACCT:
86089+ {
86090+ unsigned int wday, cday;
86091+ __u8 whr, chr;
86092+ __u8 wmin, cmin;
86093+ __u8 wsec, csec;
86094+ char cur_tty[64] = { 0 };
86095+ char parent_tty[64] = { 0 };
86096+
86097+ task = va_arg(ap, struct task_struct *);
86098+ wday = va_arg(ap, unsigned int);
86099+ cday = va_arg(ap, unsigned int);
86100+ whr = va_arg(ap, int);
86101+ chr = va_arg(ap, int);
86102+ wmin = va_arg(ap, int);
86103+ cmin = va_arg(ap, int);
86104+ wsec = va_arg(ap, int);
86105+ csec = va_arg(ap, int);
86106+ ulong1 = va_arg(ap, unsigned long);
86107+ cred = __task_cred(task);
86108+ pcred = __task_cred(task->real_parent);
86109+
86110+ gr_log_middle_varargs(audit, msg, gr_task_fullpath(task), task->comm, task_pid_nr(task), &task->signal->curr_ip, tty_name(task->signal->tty, cur_tty), GR_GLOBAL_UID(cred->uid), GR_GLOBAL_UID(cred->euid), GR_GLOBAL_GID(cred->gid), GR_GLOBAL_GID(cred->egid), wday, whr, wmin, wsec, cday, chr, cmin, csec, (task->flags & PF_SIGNALED) ? "killed by signal" : "exited", ulong1, gr_parent_task_fullpath(task), task->real_parent->comm, task_pid_nr(task->real_parent), &task->real_parent->signal->curr_ip, tty_name(task->real_parent->signal->tty, parent_tty), GR_GLOBAL_UID(pcred->uid), GR_GLOBAL_UID(pcred->euid), GR_GLOBAL_GID(pcred->gid), GR_GLOBAL_GID(pcred->egid));
86111+ }
86112+ break;
86113+ default:
86114+ gr_log_middle(audit, msg, ap);
86115+ }
86116+ va_end(ap);
86117+ // these don't need DEFAULTSECARGS printed on the end
86118+ if (argtypes == GR_CRASH1 || argtypes == GR_CRASH2)
86119+ gr_log_end(audit, 0);
86120+ else
86121+ gr_log_end(audit, 1);
86122+ END_LOCKS(audit);
86123+}
86124diff --git a/grsecurity/grsec_mem.c b/grsecurity/grsec_mem.c
86125new file mode 100644
86126index 0000000..0e39d8c
86127--- /dev/null
86128+++ b/grsecurity/grsec_mem.c
86129@@ -0,0 +1,48 @@
86130+#include <linux/kernel.h>
86131+#include <linux/sched.h>
86132+#include <linux/mm.h>
86133+#include <linux/mman.h>
86134+#include <linux/module.h>
86135+#include <linux/grinternal.h>
86136+
86137+void gr_handle_msr_write(void)
86138+{
86139+ gr_log_noargs(GR_DONT_AUDIT, GR_MSRWRITE_MSG);
86140+ return;
86141+}
86142+EXPORT_SYMBOL_GPL(gr_handle_msr_write);
86143+
86144+void
86145+gr_handle_ioperm(void)
86146+{
86147+ gr_log_noargs(GR_DONT_AUDIT, GR_IOPERM_MSG);
86148+ return;
86149+}
86150+
86151+void
86152+gr_handle_iopl(void)
86153+{
86154+ gr_log_noargs(GR_DONT_AUDIT, GR_IOPL_MSG);
86155+ return;
86156+}
86157+
86158+void
86159+gr_handle_mem_readwrite(u64 from, u64 to)
86160+{
86161+ gr_log_two_u64(GR_DONT_AUDIT, GR_MEM_READWRITE_MSG, from, to);
86162+ return;
86163+}
86164+
86165+void
86166+gr_handle_vm86(void)
86167+{
86168+ gr_log_noargs(GR_DONT_AUDIT, GR_VM86_MSG);
86169+ return;
86170+}
86171+
86172+void
86173+gr_log_badprocpid(const char *entry)
86174+{
86175+ gr_log_str(GR_DONT_AUDIT, GR_BADPROCPID_MSG, entry);
86176+ return;
86177+}
86178diff --git a/grsecurity/grsec_mount.c b/grsecurity/grsec_mount.c
86179new file mode 100644
86180index 0000000..6f9eb73
86181--- /dev/null
86182+++ b/grsecurity/grsec_mount.c
86183@@ -0,0 +1,65 @@
86184+#include <linux/kernel.h>
86185+#include <linux/sched.h>
86186+#include <linux/mount.h>
86187+#include <linux/major.h>
86188+#include <linux/grsecurity.h>
86189+#include <linux/grinternal.h>
86190+
86191+void
86192+gr_log_remount(const char *devname, const int retval)
86193+{
86194+#ifdef CONFIG_GRKERNSEC_AUDIT_MOUNT
86195+ if (grsec_enable_mount && (retval >= 0))
86196+ gr_log_str(GR_DO_AUDIT, GR_REMOUNT_AUDIT_MSG, devname ? devname : "none");
86197+#endif
86198+ return;
86199+}
86200+
86201+void
86202+gr_log_unmount(const char *devname, const int retval)
86203+{
86204+#ifdef CONFIG_GRKERNSEC_AUDIT_MOUNT
86205+ if (grsec_enable_mount && (retval >= 0))
86206+ gr_log_str(GR_DO_AUDIT, GR_UNMOUNT_AUDIT_MSG, devname ? devname : "none");
86207+#endif
86208+ return;
86209+}
86210+
86211+void
86212+gr_log_mount(const char *from, struct path *to, const int retval)
86213+{
86214+#ifdef CONFIG_GRKERNSEC_AUDIT_MOUNT
86215+ if (grsec_enable_mount && (retval >= 0))
86216+ gr_log_str_fs(GR_DO_AUDIT, GR_MOUNT_AUDIT_MSG, from ? from : "none", to->dentry, to->mnt);
86217+#endif
86218+ return;
86219+}
86220+
86221+int
86222+gr_handle_rofs_mount(struct dentry *dentry, struct vfsmount *mnt, int mnt_flags)
86223+{
86224+#ifdef CONFIG_GRKERNSEC_ROFS
86225+ if (grsec_enable_rofs && !(mnt_flags & MNT_READONLY)) {
86226+ gr_log_fs_generic(GR_DO_AUDIT, GR_ROFS_MOUNT_MSG, dentry, mnt);
86227+ return -EPERM;
86228+ } else
86229+ return 0;
86230+#endif
86231+ return 0;
86232+}
86233+
86234+int
86235+gr_handle_rofs_blockwrite(struct dentry *dentry, struct vfsmount *mnt, int acc_mode)
86236+{
86237+#ifdef CONFIG_GRKERNSEC_ROFS
86238+ struct inode *inode = dentry->d_inode;
86239+
86240+ if (grsec_enable_rofs && (acc_mode & MAY_WRITE) &&
86241+ inode && (S_ISBLK(inode->i_mode) || (S_ISCHR(inode->i_mode) && imajor(inode) == RAW_MAJOR))) {
86242+ gr_log_fs_generic(GR_DO_AUDIT, GR_ROFS_BLOCKWRITE_MSG, dentry, mnt);
86243+ return -EPERM;
86244+ } else
86245+ return 0;
86246+#endif
86247+ return 0;
86248+}
86249diff --git a/grsecurity/grsec_pax.c b/grsecurity/grsec_pax.c
86250new file mode 100644
86251index 0000000..6ee9d50
86252--- /dev/null
86253+++ b/grsecurity/grsec_pax.c
86254@@ -0,0 +1,45 @@
86255+#include <linux/kernel.h>
86256+#include <linux/sched.h>
86257+#include <linux/mm.h>
86258+#include <linux/file.h>
86259+#include <linux/grinternal.h>
86260+#include <linux/grsecurity.h>
86261+
86262+void
86263+gr_log_textrel(struct vm_area_struct * vma)
86264+{
86265+#ifdef CONFIG_GRKERNSEC_RWXMAP_LOG
86266+ if (grsec_enable_log_rwxmaps)
86267+ gr_log_textrel_ulong_ulong(GR_DONT_AUDIT, GR_TEXTREL_AUDIT_MSG, vma->vm_file, vma->vm_start, vma->vm_pgoff);
86268+#endif
86269+ return;
86270+}
86271+
86272+void gr_log_ptgnustack(struct file *file)
86273+{
86274+#ifdef CONFIG_GRKERNSEC_RWXMAP_LOG
86275+ if (grsec_enable_log_rwxmaps)
86276+ gr_log_rwxmap(GR_DONT_AUDIT, GR_PTGNUSTACK_MSG, file);
86277+#endif
86278+ return;
86279+}
86280+
86281+void
86282+gr_log_rwxmmap(struct file *file)
86283+{
86284+#ifdef CONFIG_GRKERNSEC_RWXMAP_LOG
86285+ if (grsec_enable_log_rwxmaps)
86286+ gr_log_rwxmap(GR_DONT_AUDIT, GR_RWXMMAP_MSG, file);
86287+#endif
86288+ return;
86289+}
86290+
86291+void
86292+gr_log_rwxmprotect(struct vm_area_struct *vma)
86293+{
86294+#ifdef CONFIG_GRKERNSEC_RWXMAP_LOG
86295+ if (grsec_enable_log_rwxmaps)
86296+ gr_log_rwxmap_vma(GR_DONT_AUDIT, GR_RWXMPROTECT_MSG, vma);
86297+#endif
86298+ return;
86299+}
86300diff --git a/grsecurity/grsec_proc.c b/grsecurity/grsec_proc.c
86301new file mode 100644
86302index 0000000..2005a3a
86303--- /dev/null
86304+++ b/grsecurity/grsec_proc.c
86305@@ -0,0 +1,20 @@
86306+#include <linux/kernel.h>
86307+#include <linux/sched.h>
86308+#include <linux/grsecurity.h>
86309+#include <linux/grinternal.h>
86310+
86311+int gr_proc_is_restricted(void)
86312+{
86313+#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
86314+ const struct cred *cred = current_cred();
86315+#endif
86316+
86317+#ifdef CONFIG_GRKERNSEC_PROC_USER
86318+ if (!uid_eq(cred->fsuid, GLOBAL_ROOT_UID))
86319+ return -EACCES;
86320+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
86321+ if (!uid_eq(cred->fsuid, GLOBAL_ROOT_UID) && !in_group_p(grsec_proc_gid))
86322+ return -EACCES;
86323+#endif
86324+ return 0;
86325+}
86326diff --git a/grsecurity/grsec_ptrace.c b/grsecurity/grsec_ptrace.c
86327new file mode 100644
86328index 0000000..f7f29aa
86329--- /dev/null
86330+++ b/grsecurity/grsec_ptrace.c
86331@@ -0,0 +1,30 @@
86332+#include <linux/kernel.h>
86333+#include <linux/sched.h>
86334+#include <linux/grinternal.h>
86335+#include <linux/security.h>
86336+
86337+void
86338+gr_audit_ptrace(struct task_struct *task)
86339+{
86340+#ifdef CONFIG_GRKERNSEC_AUDIT_PTRACE
86341+ if (grsec_enable_audit_ptrace)
86342+ gr_log_ptrace(GR_DO_AUDIT, GR_PTRACE_AUDIT_MSG, task);
86343+#endif
86344+ return;
86345+}
86346+
86347+int
86348+gr_ptrace_readexec(struct file *file, int unsafe_flags)
86349+{
86350+#ifdef CONFIG_GRKERNSEC_PTRACE_READEXEC
86351+ const struct dentry *dentry = file->f_path.dentry;
86352+ const struct vfsmount *mnt = file->f_path.mnt;
86353+
86354+ if (grsec_enable_ptrace_readexec && (unsafe_flags & LSM_UNSAFE_PTRACE) &&
86355+ (inode_permission(dentry->d_inode, MAY_READ) || !gr_acl_handle_open(dentry, mnt, MAY_READ))) {
86356+ gr_log_fs_generic(GR_DONT_AUDIT, GR_PTRACE_READEXEC_MSG, dentry, mnt);
86357+ return -EACCES;
86358+ }
86359+#endif
86360+ return 0;
86361+}
86362diff --git a/grsecurity/grsec_sig.c b/grsecurity/grsec_sig.c
86363new file mode 100644
86364index 0000000..3860c7e
86365--- /dev/null
86366+++ b/grsecurity/grsec_sig.c
86367@@ -0,0 +1,236 @@
86368+#include <linux/kernel.h>
86369+#include <linux/sched.h>
86370+#include <linux/fs.h>
86371+#include <linux/delay.h>
86372+#include <linux/grsecurity.h>
86373+#include <linux/grinternal.h>
86374+#include <linux/hardirq.h>
86375+
86376+char *signames[] = {
86377+ [SIGSEGV] = "Segmentation fault",
86378+ [SIGILL] = "Illegal instruction",
86379+ [SIGABRT] = "Abort",
86380+ [SIGBUS] = "Invalid alignment/Bus error"
86381+};
86382+
86383+void
86384+gr_log_signal(const int sig, const void *addr, const struct task_struct *t)
86385+{
86386+#ifdef CONFIG_GRKERNSEC_SIGNAL
86387+ if (grsec_enable_signal && ((sig == SIGSEGV) || (sig == SIGILL) ||
86388+ (sig == SIGABRT) || (sig == SIGBUS))) {
86389+ if (task_pid_nr(t) == task_pid_nr(current)) {
86390+ gr_log_sig_addr(GR_DONT_AUDIT_GOOD, GR_UNISIGLOG_MSG, signames[sig], addr);
86391+ } else {
86392+ gr_log_sig_task(GR_DONT_AUDIT_GOOD, GR_DUALSIGLOG_MSG, t, sig);
86393+ }
86394+ }
86395+#endif
86396+ return;
86397+}
86398+
86399+int
86400+gr_handle_signal(const struct task_struct *p, const int sig)
86401+{
86402+#ifdef CONFIG_GRKERNSEC
86403+ /* ignore the 0 signal for protected task checks */
86404+ if (task_pid_nr(current) > 1 && sig && gr_check_protected_task(p)) {
86405+ gr_log_sig_task(GR_DONT_AUDIT, GR_SIG_ACL_MSG, p, sig);
86406+ return -EPERM;
86407+ } else if (gr_pid_is_chrooted((struct task_struct *)p)) {
86408+ return -EPERM;
86409+ }
86410+#endif
86411+ return 0;
86412+}
86413+
86414+#ifdef CONFIG_GRKERNSEC
86415+extern int specific_send_sig_info(int sig, struct siginfo *info, struct task_struct *t);
86416+
86417+int gr_fake_force_sig(int sig, struct task_struct *t)
86418+{
86419+ unsigned long int flags;
86420+ int ret, blocked, ignored;
86421+ struct k_sigaction *action;
86422+
86423+ spin_lock_irqsave(&t->sighand->siglock, flags);
86424+ action = &t->sighand->action[sig-1];
86425+ ignored = action->sa.sa_handler == SIG_IGN;
86426+ blocked = sigismember(&t->blocked, sig);
86427+ if (blocked || ignored) {
86428+ action->sa.sa_handler = SIG_DFL;
86429+ if (blocked) {
86430+ sigdelset(&t->blocked, sig);
86431+ recalc_sigpending_and_wake(t);
86432+ }
86433+ }
86434+ if (action->sa.sa_handler == SIG_DFL)
86435+ t->signal->flags &= ~SIGNAL_UNKILLABLE;
86436+ ret = specific_send_sig_info(sig, SEND_SIG_PRIV, t);
86437+
86438+ spin_unlock_irqrestore(&t->sighand->siglock, flags);
86439+
86440+ return ret;
86441+}
86442+#endif
86443+
86444+#define GR_USER_BAN_TIME (15 * 60)
86445+#define GR_DAEMON_BRUTE_TIME (30 * 60)
86446+
86447+void gr_handle_brute_attach(int dumpable)
86448+{
86449+#ifdef CONFIG_GRKERNSEC_BRUTE
86450+ struct task_struct *p = current;
86451+ kuid_t uid = GLOBAL_ROOT_UID;
86452+ int daemon = 0;
86453+
86454+ if (!grsec_enable_brute)
86455+ return;
86456+
86457+ rcu_read_lock();
86458+ read_lock(&tasklist_lock);
86459+ read_lock(&grsec_exec_file_lock);
86460+ if (p->real_parent && gr_is_same_file(p->real_parent->exec_file, p->exec_file)) {
86461+ p->real_parent->brute_expires = get_seconds() + GR_DAEMON_BRUTE_TIME;
86462+ p->real_parent->brute = 1;
86463+ daemon = 1;
86464+ } else {
86465+ const struct cred *cred = __task_cred(p), *cred2;
86466+ struct task_struct *tsk, *tsk2;
86467+
86468+ if (dumpable != SUID_DUMP_USER && gr_is_global_nonroot(cred->uid)) {
86469+ struct user_struct *user;
86470+
86471+ uid = cred->uid;
86472+
86473+ /* this is put upon execution past expiration */
86474+ user = find_user(uid);
86475+ if (user == NULL)
86476+ goto unlock;
86477+ user->suid_banned = 1;
86478+ user->suid_ban_expires = get_seconds() + GR_USER_BAN_TIME;
86479+ if (user->suid_ban_expires == ~0UL)
86480+ user->suid_ban_expires--;
86481+
86482+ /* only kill other threads of the same binary, from the same user */
86483+ do_each_thread(tsk2, tsk) {
86484+ cred2 = __task_cred(tsk);
86485+ if (tsk != p && uid_eq(cred2->uid, uid) && gr_is_same_file(tsk->exec_file, p->exec_file))
86486+ gr_fake_force_sig(SIGKILL, tsk);
86487+ } while_each_thread(tsk2, tsk);
86488+ }
86489+ }
86490+unlock:
86491+ read_unlock(&grsec_exec_file_lock);
86492+ read_unlock(&tasklist_lock);
86493+ rcu_read_unlock();
86494+
86495+ if (gr_is_global_nonroot(uid))
86496+ gr_log_fs_int2(GR_DONT_AUDIT, GR_BRUTE_SUID_MSG, p->exec_file->f_path.dentry, p->exec_file->f_path.mnt, GR_GLOBAL_UID(uid), GR_USER_BAN_TIME / 60);
86497+ else if (daemon)
86498+ gr_log_noargs(GR_DONT_AUDIT, GR_BRUTE_DAEMON_MSG);
86499+
86500+#endif
86501+ return;
86502+}
86503+
86504+void gr_handle_brute_check(void)
86505+{
86506+#ifdef CONFIG_GRKERNSEC_BRUTE
86507+ struct task_struct *p = current;
86508+
86509+ if (unlikely(p->brute)) {
86510+ if (!grsec_enable_brute)
86511+ p->brute = 0;
86512+ else if (time_before(get_seconds(), p->brute_expires))
86513+ msleep(30 * 1000);
86514+ }
86515+#endif
86516+ return;
86517+}
86518+
86519+void gr_handle_kernel_exploit(void)
86520+{
86521+#ifdef CONFIG_GRKERNSEC_KERN_LOCKOUT
86522+ const struct cred *cred;
86523+ struct task_struct *tsk, *tsk2;
86524+ struct user_struct *user;
86525+ kuid_t uid;
86526+
86527+ if (in_irq() || in_serving_softirq() || in_nmi())
86528+ panic("grsec: halting the system due to suspicious kernel crash caused in interrupt context");
86529+
86530+ uid = current_uid();
86531+
86532+ if (gr_is_global_root(uid))
86533+ panic("grsec: halting the system due to suspicious kernel crash caused by root");
86534+ else {
86535+ /* kill all the processes of this user, hold a reference
86536+ to their creds struct, and prevent them from creating
86537+ another process until system reset
86538+ */
86539+ printk(KERN_ALERT "grsec: banning user with uid %u until system restart for suspicious kernel crash\n",
86540+ GR_GLOBAL_UID(uid));
86541+ /* we intentionally leak this ref */
86542+ user = get_uid(current->cred->user);
86543+ if (user)
86544+ user->kernel_banned = 1;
86545+
86546+ /* kill all processes of this user */
86547+ read_lock(&tasklist_lock);
86548+ do_each_thread(tsk2, tsk) {
86549+ cred = __task_cred(tsk);
86550+ if (uid_eq(cred->uid, uid))
86551+ gr_fake_force_sig(SIGKILL, tsk);
86552+ } while_each_thread(tsk2, tsk);
86553+ read_unlock(&tasklist_lock);
86554+ }
86555+#endif
86556+}
86557+
86558+#ifdef CONFIG_GRKERNSEC_BRUTE
86559+static bool suid_ban_expired(struct user_struct *user)
86560+{
86561+ if (user->suid_ban_expires != ~0UL && time_after_eq(get_seconds(), user->suid_ban_expires)) {
86562+ user->suid_banned = 0;
86563+ user->suid_ban_expires = 0;
86564+ free_uid(user);
86565+ return true;
86566+ }
86567+
86568+ return false;
86569+}
86570+#endif
86571+
86572+int gr_process_kernel_exec_ban(void)
86573+{
86574+#ifdef CONFIG_GRKERNSEC_KERN_LOCKOUT
86575+ if (unlikely(current->cred->user->kernel_banned))
86576+ return -EPERM;
86577+#endif
86578+ return 0;
86579+}
86580+
86581+int gr_process_kernel_setuid_ban(struct user_struct *user)
86582+{
86583+#ifdef CONFIG_GRKERNSEC_KERN_LOCKOUT
86584+ if (unlikely(user->kernel_banned))
86585+ gr_fake_force_sig(SIGKILL, current);
86586+#endif
86587+ return 0;
86588+}
86589+
86590+int gr_process_suid_exec_ban(const struct linux_binprm *bprm)
86591+{
86592+#ifdef CONFIG_GRKERNSEC_BRUTE
86593+ struct user_struct *user = current->cred->user;
86594+ if (unlikely(user->suid_banned)) {
86595+ if (suid_ban_expired(user))
86596+ return 0;
86597+ /* disallow execution of suid binaries only */
86598+ else if (!uid_eq(bprm->cred->euid, current->cred->uid))
86599+ return -EPERM;
86600+ }
86601+#endif
86602+ return 0;
86603+}
86604diff --git a/grsecurity/grsec_sock.c b/grsecurity/grsec_sock.c
86605new file mode 100644
86606index 0000000..a523bd2
86607--- /dev/null
86608+++ b/grsecurity/grsec_sock.c
86609@@ -0,0 +1,244 @@
86610+#include <linux/kernel.h>
86611+#include <linux/module.h>
86612+#include <linux/sched.h>
86613+#include <linux/file.h>
86614+#include <linux/net.h>
86615+#include <linux/in.h>
86616+#include <linux/ip.h>
86617+#include <net/sock.h>
86618+#include <net/inet_sock.h>
86619+#include <linux/grsecurity.h>
86620+#include <linux/grinternal.h>
86621+#include <linux/gracl.h>
86622+
86623+extern int gr_search_udp_recvmsg(const struct sock *sk, const struct sk_buff *skb);
86624+extern int gr_search_udp_sendmsg(const struct sock *sk, const struct sockaddr_in *addr);
86625+
86626+EXPORT_SYMBOL_GPL(gr_search_udp_recvmsg);
86627+EXPORT_SYMBOL_GPL(gr_search_udp_sendmsg);
86628+
86629+#ifdef CONFIG_UNIX_MODULE
86630+EXPORT_SYMBOL_GPL(gr_acl_handle_unix);
86631+EXPORT_SYMBOL_GPL(gr_acl_handle_mknod);
86632+EXPORT_SYMBOL_GPL(gr_handle_chroot_unix);
86633+EXPORT_SYMBOL_GPL(gr_handle_create);
86634+#endif
86635+
86636+#ifdef CONFIG_GRKERNSEC
86637+#define gr_conn_table_size 32749
86638+struct conn_table_entry {
86639+ struct conn_table_entry *next;
86640+ struct signal_struct *sig;
86641+};
86642+
86643+struct conn_table_entry *gr_conn_table[gr_conn_table_size];
86644+DEFINE_SPINLOCK(gr_conn_table_lock);
86645+
86646+extern const char * gr_socktype_to_name(unsigned char type);
86647+extern const char * gr_proto_to_name(unsigned char proto);
86648+extern const char * gr_sockfamily_to_name(unsigned char family);
86649+
86650+static int
86651+conn_hash(__u32 saddr, __u32 daddr, __u16 sport, __u16 dport, unsigned int size)
86652+{
86653+ return ((daddr + saddr + (sport << 8) + (dport << 16)) % size);
86654+}
86655+
86656+static int
86657+conn_match(const struct signal_struct *sig, __u32 saddr, __u32 daddr,
86658+ __u16 sport, __u16 dport)
86659+{
86660+ if (unlikely(sig->gr_saddr == saddr && sig->gr_daddr == daddr &&
86661+ sig->gr_sport == sport && sig->gr_dport == dport))
86662+ return 1;
86663+ else
86664+ return 0;
86665+}
86666+
86667+static void gr_add_to_task_ip_table_nolock(struct signal_struct *sig, struct conn_table_entry *newent)
86668+{
86669+ struct conn_table_entry **match;
86670+ unsigned int index;
86671+
86672+ index = conn_hash(sig->gr_saddr, sig->gr_daddr,
86673+ sig->gr_sport, sig->gr_dport,
86674+ gr_conn_table_size);
86675+
86676+ newent->sig = sig;
86677+
86678+ match = &gr_conn_table[index];
86679+ newent->next = *match;
86680+ *match = newent;
86681+
86682+ return;
86683+}
86684+
86685+static void gr_del_task_from_ip_table_nolock(struct signal_struct *sig)
86686+{
86687+ struct conn_table_entry *match, *last = NULL;
86688+ unsigned int index;
86689+
86690+ index = conn_hash(sig->gr_saddr, sig->gr_daddr,
86691+ sig->gr_sport, sig->gr_dport,
86692+ gr_conn_table_size);
86693+
86694+ match = gr_conn_table[index];
86695+ while (match && !conn_match(match->sig,
86696+ sig->gr_saddr, sig->gr_daddr, sig->gr_sport,
86697+ sig->gr_dport)) {
86698+ last = match;
86699+ match = match->next;
86700+ }
86701+
86702+ if (match) {
86703+ if (last)
86704+ last->next = match->next;
86705+ else
86706+ gr_conn_table[index] = NULL;
86707+ kfree(match);
86708+ }
86709+
86710+ return;
86711+}
86712+
86713+static struct signal_struct * gr_lookup_task_ip_table(__u32 saddr, __u32 daddr,
86714+ __u16 sport, __u16 dport)
86715+{
86716+ struct conn_table_entry *match;
86717+ unsigned int index;
86718+
86719+ index = conn_hash(saddr, daddr, sport, dport, gr_conn_table_size);
86720+
86721+ match = gr_conn_table[index];
86722+ while (match && !conn_match(match->sig, saddr, daddr, sport, dport))
86723+ match = match->next;
86724+
86725+ if (match)
86726+ return match->sig;
86727+ else
86728+ return NULL;
86729+}
86730+
86731+#endif
86732+
86733+void gr_update_task_in_ip_table(const struct inet_sock *inet)
86734+{
86735+#ifdef CONFIG_GRKERNSEC
86736+ struct signal_struct *sig = current->signal;
86737+ struct conn_table_entry *newent;
86738+
86739+ newent = kmalloc(sizeof(struct conn_table_entry), GFP_ATOMIC);
86740+ if (newent == NULL)
86741+ return;
86742+ /* no bh lock needed since we are called with bh disabled */
86743+ spin_lock(&gr_conn_table_lock);
86744+ gr_del_task_from_ip_table_nolock(sig);
86745+ sig->gr_saddr = inet->inet_rcv_saddr;
86746+ sig->gr_daddr = inet->inet_daddr;
86747+ sig->gr_sport = inet->inet_sport;
86748+ sig->gr_dport = inet->inet_dport;
86749+ gr_add_to_task_ip_table_nolock(sig, newent);
86750+ spin_unlock(&gr_conn_table_lock);
86751+#endif
86752+ return;
86753+}
86754+
86755+void gr_del_task_from_ip_table(struct task_struct *task)
86756+{
86757+#ifdef CONFIG_GRKERNSEC
86758+ spin_lock_bh(&gr_conn_table_lock);
86759+ gr_del_task_from_ip_table_nolock(task->signal);
86760+ spin_unlock_bh(&gr_conn_table_lock);
86761+#endif
86762+ return;
86763+}
86764+
86765+void
86766+gr_attach_curr_ip(const struct sock *sk)
86767+{
86768+#ifdef CONFIG_GRKERNSEC
86769+ struct signal_struct *p, *set;
86770+ const struct inet_sock *inet = inet_sk(sk);
86771+
86772+ if (unlikely(sk->sk_protocol != IPPROTO_TCP))
86773+ return;
86774+
86775+ set = current->signal;
86776+
86777+ spin_lock_bh(&gr_conn_table_lock);
86778+ p = gr_lookup_task_ip_table(inet->inet_daddr, inet->inet_rcv_saddr,
86779+ inet->inet_dport, inet->inet_sport);
86780+ if (unlikely(p != NULL)) {
86781+ set->curr_ip = p->curr_ip;
86782+ set->used_accept = 1;
86783+ gr_del_task_from_ip_table_nolock(p);
86784+ spin_unlock_bh(&gr_conn_table_lock);
86785+ return;
86786+ }
86787+ spin_unlock_bh(&gr_conn_table_lock);
86788+
86789+ set->curr_ip = inet->inet_daddr;
86790+ set->used_accept = 1;
86791+#endif
86792+ return;
86793+}
86794+
86795+int
86796+gr_handle_sock_all(const int family, const int type, const int protocol)
86797+{
86798+#ifdef CONFIG_GRKERNSEC_SOCKET_ALL
86799+ if (grsec_enable_socket_all && in_group_p(grsec_socket_all_gid) &&
86800+ (family != AF_UNIX)) {
86801+ if (family == AF_INET)
86802+ gr_log_str3(GR_DONT_AUDIT, GR_SOCK_MSG, gr_sockfamily_to_name(family), gr_socktype_to_name(type), gr_proto_to_name(protocol));
86803+ else
86804+ gr_log_str2_int(GR_DONT_AUDIT, GR_SOCK_NOINET_MSG, gr_sockfamily_to_name(family), gr_socktype_to_name(type), protocol);
86805+ return -EACCES;
86806+ }
86807+#endif
86808+ return 0;
86809+}
86810+
86811+int
86812+gr_handle_sock_server(const struct sockaddr *sck)
86813+{
86814+#ifdef CONFIG_GRKERNSEC_SOCKET_SERVER
86815+ if (grsec_enable_socket_server &&
86816+ in_group_p(grsec_socket_server_gid) &&
86817+ sck && (sck->sa_family != AF_UNIX) &&
86818+ (sck->sa_family != AF_LOCAL)) {
86819+ gr_log_noargs(GR_DONT_AUDIT, GR_BIND_MSG);
86820+ return -EACCES;
86821+ }
86822+#endif
86823+ return 0;
86824+}
86825+
86826+int
86827+gr_handle_sock_server_other(const struct sock *sck)
86828+{
86829+#ifdef CONFIG_GRKERNSEC_SOCKET_SERVER
86830+ if (grsec_enable_socket_server &&
86831+ in_group_p(grsec_socket_server_gid) &&
86832+ sck && (sck->sk_family != AF_UNIX) &&
86833+ (sck->sk_family != AF_LOCAL)) {
86834+ gr_log_noargs(GR_DONT_AUDIT, GR_BIND_MSG);
86835+ return -EACCES;
86836+ }
86837+#endif
86838+ return 0;
86839+}
86840+
86841+int
86842+gr_handle_sock_client(const struct sockaddr *sck)
86843+{
86844+#ifdef CONFIG_GRKERNSEC_SOCKET_CLIENT
86845+ if (grsec_enable_socket_client && in_group_p(grsec_socket_client_gid) &&
86846+ sck && (sck->sa_family != AF_UNIX) &&
86847+ (sck->sa_family != AF_LOCAL)) {
86848+ gr_log_noargs(GR_DONT_AUDIT, GR_CONNECT_MSG);
86849+ return -EACCES;
86850+ }
86851+#endif
86852+ return 0;
86853+}
86854diff --git a/grsecurity/grsec_sysctl.c b/grsecurity/grsec_sysctl.c
86855new file mode 100644
86856index 0000000..cce889e
86857--- /dev/null
86858+++ b/grsecurity/grsec_sysctl.c
86859@@ -0,0 +1,488 @@
86860+#include <linux/kernel.h>
86861+#include <linux/sched.h>
86862+#include <linux/sysctl.h>
86863+#include <linux/grsecurity.h>
86864+#include <linux/grinternal.h>
86865+
86866+int
86867+gr_handle_sysctl_mod(const char *dirname, const char *name, const int op)
86868+{
86869+#ifdef CONFIG_GRKERNSEC_SYSCTL
86870+ if (dirname == NULL || name == NULL)
86871+ return 0;
86872+ if (!strcmp(dirname, "grsecurity") && grsec_lock && (op & MAY_WRITE)) {
86873+ gr_log_str(GR_DONT_AUDIT, GR_SYSCTL_MSG, name);
86874+ return -EACCES;
86875+ }
86876+#endif
86877+ return 0;
86878+}
86879+
86880+#if defined(CONFIG_GRKERNSEC_ROFS) || defined(CONFIG_GRKERNSEC_DENYUSB)
86881+static int __maybe_unused __read_only one = 1;
86882+#endif
86883+
86884+#if defined(CONFIG_GRKERNSEC_SYSCTL) || defined(CONFIG_GRKERNSEC_ROFS) || \
86885+ defined(CONFIG_GRKERNSEC_DENYUSB)
86886+struct ctl_table grsecurity_table[] = {
86887+#ifdef CONFIG_GRKERNSEC_SYSCTL
86888+#ifdef CONFIG_GRKERNSEC_SYSCTL_DISTRO
86889+#ifdef CONFIG_GRKERNSEC_IO
86890+ {
86891+ .procname = "disable_priv_io",
86892+ .data = &grsec_disable_privio,
86893+ .maxlen = sizeof(int),
86894+ .mode = 0600,
86895+ .proc_handler = &proc_dointvec,
86896+ },
86897+#endif
86898+#endif
86899+#ifdef CONFIG_GRKERNSEC_LINK
86900+ {
86901+ .procname = "linking_restrictions",
86902+ .data = &grsec_enable_link,
86903+ .maxlen = sizeof(int),
86904+ .mode = 0600,
86905+ .proc_handler = &proc_dointvec,
86906+ },
86907+#endif
86908+#ifdef CONFIG_GRKERNSEC_SYMLINKOWN
86909+ {
86910+ .procname = "enforce_symlinksifowner",
86911+ .data = &grsec_enable_symlinkown,
86912+ .maxlen = sizeof(int),
86913+ .mode = 0600,
86914+ .proc_handler = &proc_dointvec,
86915+ },
86916+ {
86917+ .procname = "symlinkown_gid",
86918+ .data = &grsec_symlinkown_gid,
86919+ .maxlen = sizeof(int),
86920+ .mode = 0600,
86921+ .proc_handler = &proc_dointvec,
86922+ },
86923+#endif
86924+#ifdef CONFIG_GRKERNSEC_BRUTE
86925+ {
86926+ .procname = "deter_bruteforce",
86927+ .data = &grsec_enable_brute,
86928+ .maxlen = sizeof(int),
86929+ .mode = 0600,
86930+ .proc_handler = &proc_dointvec,
86931+ },
86932+#endif
86933+#ifdef CONFIG_GRKERNSEC_FIFO
86934+ {
86935+ .procname = "fifo_restrictions",
86936+ .data = &grsec_enable_fifo,
86937+ .maxlen = sizeof(int),
86938+ .mode = 0600,
86939+ .proc_handler = &proc_dointvec,
86940+ },
86941+#endif
86942+#ifdef CONFIG_GRKERNSEC_PTRACE_READEXEC
86943+ {
86944+ .procname = "ptrace_readexec",
86945+ .data = &grsec_enable_ptrace_readexec,
86946+ .maxlen = sizeof(int),
86947+ .mode = 0600,
86948+ .proc_handler = &proc_dointvec,
86949+ },
86950+#endif
86951+#ifdef CONFIG_GRKERNSEC_SETXID
86952+ {
86953+ .procname = "consistent_setxid",
86954+ .data = &grsec_enable_setxid,
86955+ .maxlen = sizeof(int),
86956+ .mode = 0600,
86957+ .proc_handler = &proc_dointvec,
86958+ },
86959+#endif
86960+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
86961+ {
86962+ .procname = "ip_blackhole",
86963+ .data = &grsec_enable_blackhole,
86964+ .maxlen = sizeof(int),
86965+ .mode = 0600,
86966+ .proc_handler = &proc_dointvec,
86967+ },
86968+ {
86969+ .procname = "lastack_retries",
86970+ .data = &grsec_lastack_retries,
86971+ .maxlen = sizeof(int),
86972+ .mode = 0600,
86973+ .proc_handler = &proc_dointvec,
86974+ },
86975+#endif
86976+#ifdef CONFIG_GRKERNSEC_EXECLOG
86977+ {
86978+ .procname = "exec_logging",
86979+ .data = &grsec_enable_execlog,
86980+ .maxlen = sizeof(int),
86981+ .mode = 0600,
86982+ .proc_handler = &proc_dointvec,
86983+ },
86984+#endif
86985+#ifdef CONFIG_GRKERNSEC_RWXMAP_LOG
86986+ {
86987+ .procname = "rwxmap_logging",
86988+ .data = &grsec_enable_log_rwxmaps,
86989+ .maxlen = sizeof(int),
86990+ .mode = 0600,
86991+ .proc_handler = &proc_dointvec,
86992+ },
86993+#endif
86994+#ifdef CONFIG_GRKERNSEC_SIGNAL
86995+ {
86996+ .procname = "signal_logging",
86997+ .data = &grsec_enable_signal,
86998+ .maxlen = sizeof(int),
86999+ .mode = 0600,
87000+ .proc_handler = &proc_dointvec,
87001+ },
87002+#endif
87003+#ifdef CONFIG_GRKERNSEC_FORKFAIL
87004+ {
87005+ .procname = "forkfail_logging",
87006+ .data = &grsec_enable_forkfail,
87007+ .maxlen = sizeof(int),
87008+ .mode = 0600,
87009+ .proc_handler = &proc_dointvec,
87010+ },
87011+#endif
87012+#ifdef CONFIG_GRKERNSEC_TIME
87013+ {
87014+ .procname = "timechange_logging",
87015+ .data = &grsec_enable_time,
87016+ .maxlen = sizeof(int),
87017+ .mode = 0600,
87018+ .proc_handler = &proc_dointvec,
87019+ },
87020+#endif
87021+#ifdef CONFIG_GRKERNSEC_CHROOT_SHMAT
87022+ {
87023+ .procname = "chroot_deny_shmat",
87024+ .data = &grsec_enable_chroot_shmat,
87025+ .maxlen = sizeof(int),
87026+ .mode = 0600,
87027+ .proc_handler = &proc_dointvec,
87028+ },
87029+#endif
87030+#ifdef CONFIG_GRKERNSEC_CHROOT_UNIX
87031+ {
87032+ .procname = "chroot_deny_unix",
87033+ .data = &grsec_enable_chroot_unix,
87034+ .maxlen = sizeof(int),
87035+ .mode = 0600,
87036+ .proc_handler = &proc_dointvec,
87037+ },
87038+#endif
87039+#ifdef CONFIG_GRKERNSEC_CHROOT_MOUNT
87040+ {
87041+ .procname = "chroot_deny_mount",
87042+ .data = &grsec_enable_chroot_mount,
87043+ .maxlen = sizeof(int),
87044+ .mode = 0600,
87045+ .proc_handler = &proc_dointvec,
87046+ },
87047+#endif
87048+#ifdef CONFIG_GRKERNSEC_CHROOT_FCHDIR
87049+ {
87050+ .procname = "chroot_deny_fchdir",
87051+ .data = &grsec_enable_chroot_fchdir,
87052+ .maxlen = sizeof(int),
87053+ .mode = 0600,
87054+ .proc_handler = &proc_dointvec,
87055+ },
87056+#endif
87057+#ifdef CONFIG_GRKERNSEC_CHROOT_DOUBLE
87058+ {
87059+ .procname = "chroot_deny_chroot",
87060+ .data = &grsec_enable_chroot_double,
87061+ .maxlen = sizeof(int),
87062+ .mode = 0600,
87063+ .proc_handler = &proc_dointvec,
87064+ },
87065+#endif
87066+#ifdef CONFIG_GRKERNSEC_CHROOT_PIVOT
87067+ {
87068+ .procname = "chroot_deny_pivot",
87069+ .data = &grsec_enable_chroot_pivot,
87070+ .maxlen = sizeof(int),
87071+ .mode = 0600,
87072+ .proc_handler = &proc_dointvec,
87073+ },
87074+#endif
87075+#ifdef CONFIG_GRKERNSEC_CHROOT_CHDIR
87076+ {
87077+ .procname = "chroot_enforce_chdir",
87078+ .data = &grsec_enable_chroot_chdir,
87079+ .maxlen = sizeof(int),
87080+ .mode = 0600,
87081+ .proc_handler = &proc_dointvec,
87082+ },
87083+#endif
87084+#ifdef CONFIG_GRKERNSEC_CHROOT_CHMOD
87085+ {
87086+ .procname = "chroot_deny_chmod",
87087+ .data = &grsec_enable_chroot_chmod,
87088+ .maxlen = sizeof(int),
87089+ .mode = 0600,
87090+ .proc_handler = &proc_dointvec,
87091+ },
87092+#endif
87093+#ifdef CONFIG_GRKERNSEC_CHROOT_MKNOD
87094+ {
87095+ .procname = "chroot_deny_mknod",
87096+ .data = &grsec_enable_chroot_mknod,
87097+ .maxlen = sizeof(int),
87098+ .mode = 0600,
87099+ .proc_handler = &proc_dointvec,
87100+ },
87101+#endif
87102+#ifdef CONFIG_GRKERNSEC_CHROOT_NICE
87103+ {
87104+ .procname = "chroot_restrict_nice",
87105+ .data = &grsec_enable_chroot_nice,
87106+ .maxlen = sizeof(int),
87107+ .mode = 0600,
87108+ .proc_handler = &proc_dointvec,
87109+ },
87110+#endif
87111+#ifdef CONFIG_GRKERNSEC_CHROOT_EXECLOG
87112+ {
87113+ .procname = "chroot_execlog",
87114+ .data = &grsec_enable_chroot_execlog,
87115+ .maxlen = sizeof(int),
87116+ .mode = 0600,
87117+ .proc_handler = &proc_dointvec,
87118+ },
87119+#endif
87120+#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS
87121+ {
87122+ .procname = "chroot_caps",
87123+ .data = &grsec_enable_chroot_caps,
87124+ .maxlen = sizeof(int),
87125+ .mode = 0600,
87126+ .proc_handler = &proc_dointvec,
87127+ },
87128+#endif
87129+#ifdef CONFIG_GRKERNSEC_CHROOT_RENAME
87130+ {
87131+ .procname = "chroot_deny_bad_rename",
87132+ .data = &grsec_enable_chroot_rename,
87133+ .maxlen = sizeof(int),
87134+ .mode = 0600,
87135+ .proc_handler = &proc_dointvec,
87136+ },
87137+#endif
87138+#ifdef CONFIG_GRKERNSEC_CHROOT_SYSCTL
87139+ {
87140+ .procname = "chroot_deny_sysctl",
87141+ .data = &grsec_enable_chroot_sysctl,
87142+ .maxlen = sizeof(int),
87143+ .mode = 0600,
87144+ .proc_handler = &proc_dointvec,
87145+ },
87146+#endif
87147+#ifdef CONFIG_GRKERNSEC_TPE
87148+ {
87149+ .procname = "tpe",
87150+ .data = &grsec_enable_tpe,
87151+ .maxlen = sizeof(int),
87152+ .mode = 0600,
87153+ .proc_handler = &proc_dointvec,
87154+ },
87155+ {
87156+ .procname = "tpe_gid",
87157+ .data = &grsec_tpe_gid,
87158+ .maxlen = sizeof(int),
87159+ .mode = 0600,
87160+ .proc_handler = &proc_dointvec,
87161+ },
87162+#endif
87163+#ifdef CONFIG_GRKERNSEC_TPE_INVERT
87164+ {
87165+ .procname = "tpe_invert",
87166+ .data = &grsec_enable_tpe_invert,
87167+ .maxlen = sizeof(int),
87168+ .mode = 0600,
87169+ .proc_handler = &proc_dointvec,
87170+ },
87171+#endif
87172+#ifdef CONFIG_GRKERNSEC_TPE_ALL
87173+ {
87174+ .procname = "tpe_restrict_all",
87175+ .data = &grsec_enable_tpe_all,
87176+ .maxlen = sizeof(int),
87177+ .mode = 0600,
87178+ .proc_handler = &proc_dointvec,
87179+ },
87180+#endif
87181+#ifdef CONFIG_GRKERNSEC_SOCKET_ALL
87182+ {
87183+ .procname = "socket_all",
87184+ .data = &grsec_enable_socket_all,
87185+ .maxlen = sizeof(int),
87186+ .mode = 0600,
87187+ .proc_handler = &proc_dointvec,
87188+ },
87189+ {
87190+ .procname = "socket_all_gid",
87191+ .data = &grsec_socket_all_gid,
87192+ .maxlen = sizeof(int),
87193+ .mode = 0600,
87194+ .proc_handler = &proc_dointvec,
87195+ },
87196+#endif
87197+#ifdef CONFIG_GRKERNSEC_SOCKET_CLIENT
87198+ {
87199+ .procname = "socket_client",
87200+ .data = &grsec_enable_socket_client,
87201+ .maxlen = sizeof(int),
87202+ .mode = 0600,
87203+ .proc_handler = &proc_dointvec,
87204+ },
87205+ {
87206+ .procname = "socket_client_gid",
87207+ .data = &grsec_socket_client_gid,
87208+ .maxlen = sizeof(int),
87209+ .mode = 0600,
87210+ .proc_handler = &proc_dointvec,
87211+ },
87212+#endif
87213+#ifdef CONFIG_GRKERNSEC_SOCKET_SERVER
87214+ {
87215+ .procname = "socket_server",
87216+ .data = &grsec_enable_socket_server,
87217+ .maxlen = sizeof(int),
87218+ .mode = 0600,
87219+ .proc_handler = &proc_dointvec,
87220+ },
87221+ {
87222+ .procname = "socket_server_gid",
87223+ .data = &grsec_socket_server_gid,
87224+ .maxlen = sizeof(int),
87225+ .mode = 0600,
87226+ .proc_handler = &proc_dointvec,
87227+ },
87228+#endif
87229+#ifdef CONFIG_GRKERNSEC_AUDIT_GROUP
87230+ {
87231+ .procname = "audit_group",
87232+ .data = &grsec_enable_group,
87233+ .maxlen = sizeof(int),
87234+ .mode = 0600,
87235+ .proc_handler = &proc_dointvec,
87236+ },
87237+ {
87238+ .procname = "audit_gid",
87239+ .data = &grsec_audit_gid,
87240+ .maxlen = sizeof(int),
87241+ .mode = 0600,
87242+ .proc_handler = &proc_dointvec,
87243+ },
87244+#endif
87245+#ifdef CONFIG_GRKERNSEC_AUDIT_CHDIR
87246+ {
87247+ .procname = "audit_chdir",
87248+ .data = &grsec_enable_chdir,
87249+ .maxlen = sizeof(int),
87250+ .mode = 0600,
87251+ .proc_handler = &proc_dointvec,
87252+ },
87253+#endif
87254+#ifdef CONFIG_GRKERNSEC_AUDIT_MOUNT
87255+ {
87256+ .procname = "audit_mount",
87257+ .data = &grsec_enable_mount,
87258+ .maxlen = sizeof(int),
87259+ .mode = 0600,
87260+ .proc_handler = &proc_dointvec,
87261+ },
87262+#endif
87263+#ifdef CONFIG_GRKERNSEC_DMESG
87264+ {
87265+ .procname = "dmesg",
87266+ .data = &grsec_enable_dmesg,
87267+ .maxlen = sizeof(int),
87268+ .mode = 0600,
87269+ .proc_handler = &proc_dointvec,
87270+ },
87271+#endif
87272+#ifdef CONFIG_GRKERNSEC_CHROOT_FINDTASK
87273+ {
87274+ .procname = "chroot_findtask",
87275+ .data = &grsec_enable_chroot_findtask,
87276+ .maxlen = sizeof(int),
87277+ .mode = 0600,
87278+ .proc_handler = &proc_dointvec,
87279+ },
87280+#endif
87281+#ifdef CONFIG_GRKERNSEC_RESLOG
87282+ {
87283+ .procname = "resource_logging",
87284+ .data = &grsec_resource_logging,
87285+ .maxlen = sizeof(int),
87286+ .mode = 0600,
87287+ .proc_handler = &proc_dointvec,
87288+ },
87289+#endif
87290+#ifdef CONFIG_GRKERNSEC_AUDIT_PTRACE
87291+ {
87292+ .procname = "audit_ptrace",
87293+ .data = &grsec_enable_audit_ptrace,
87294+ .maxlen = sizeof(int),
87295+ .mode = 0600,
87296+ .proc_handler = &proc_dointvec,
87297+ },
87298+#endif
87299+#ifdef CONFIG_GRKERNSEC_HARDEN_PTRACE
87300+ {
87301+ .procname = "harden_ptrace",
87302+ .data = &grsec_enable_harden_ptrace,
87303+ .maxlen = sizeof(int),
87304+ .mode = 0600,
87305+ .proc_handler = &proc_dointvec,
87306+ },
87307+#endif
87308+#ifdef CONFIG_GRKERNSEC_HARDEN_IPC
87309+ {
87310+ .procname = "harden_ipc",
87311+ .data = &grsec_enable_harden_ipc,
87312+ .maxlen = sizeof(int),
87313+ .mode = 0600,
87314+ .proc_handler = &proc_dointvec,
87315+ },
87316+#endif
87317+ {
87318+ .procname = "grsec_lock",
87319+ .data = &grsec_lock,
87320+ .maxlen = sizeof(int),
87321+ .mode = 0600,
87322+ .proc_handler = &proc_dointvec,
87323+ },
87324+#endif
87325+#ifdef CONFIG_GRKERNSEC_ROFS
87326+ {
87327+ .procname = "romount_protect",
87328+ .data = &grsec_enable_rofs,
87329+ .maxlen = sizeof(int),
87330+ .mode = 0600,
87331+ .proc_handler = &proc_dointvec_minmax,
87332+ .extra1 = &one,
87333+ .extra2 = &one,
87334+ },
87335+#endif
87336+#if defined(CONFIG_GRKERNSEC_DENYUSB) && !defined(CONFIG_GRKERNSEC_DENYUSB_FORCE)
87337+ {
87338+ .procname = "deny_new_usb",
87339+ .data = &grsec_deny_new_usb,
87340+ .maxlen = sizeof(int),
87341+ .mode = 0600,
87342+ .proc_handler = &proc_dointvec,
87343+ },
87344+#endif
87345+ { }
87346+};
87347+#endif
87348diff --git a/grsecurity/grsec_time.c b/grsecurity/grsec_time.c
87349new file mode 100644
87350index 0000000..61b514e
87351--- /dev/null
87352+++ b/grsecurity/grsec_time.c
87353@@ -0,0 +1,16 @@
87354+#include <linux/kernel.h>
87355+#include <linux/sched.h>
87356+#include <linux/grinternal.h>
87357+#include <linux/module.h>
87358+
87359+void
87360+gr_log_timechange(void)
87361+{
87362+#ifdef CONFIG_GRKERNSEC_TIME
87363+ if (grsec_enable_time)
87364+ gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_TIME_MSG);
87365+#endif
87366+ return;
87367+}
87368+
87369+EXPORT_SYMBOL_GPL(gr_log_timechange);
87370diff --git a/grsecurity/grsec_tpe.c b/grsecurity/grsec_tpe.c
87371new file mode 100644
87372index 0000000..d1953de
87373--- /dev/null
87374+++ b/grsecurity/grsec_tpe.c
87375@@ -0,0 +1,78 @@
87376+#include <linux/kernel.h>
87377+#include <linux/sched.h>
87378+#include <linux/file.h>
87379+#include <linux/fs.h>
87380+#include <linux/grinternal.h>
87381+
87382+extern int gr_acl_tpe_check(void);
87383+
87384+int
87385+gr_tpe_allow(const struct file *file)
87386+{
87387+#ifdef CONFIG_GRKERNSEC
87388+ struct inode *inode = file->f_path.dentry->d_parent->d_inode;
87389+ struct inode *file_inode = file->f_path.dentry->d_inode;
87390+ const struct cred *cred = current_cred();
87391+ char *msg = NULL;
87392+ char *msg2 = NULL;
87393+
87394+ // never restrict root
87395+ if (gr_is_global_root(cred->uid))
87396+ return 1;
87397+
87398+ if (grsec_enable_tpe) {
87399+#ifdef CONFIG_GRKERNSEC_TPE_INVERT
87400+ if (grsec_enable_tpe_invert && !in_group_p(grsec_tpe_gid))
87401+ msg = "not being in trusted group";
87402+ else if (!grsec_enable_tpe_invert && in_group_p(grsec_tpe_gid))
87403+ msg = "being in untrusted group";
87404+#else
87405+ if (in_group_p(grsec_tpe_gid))
87406+ msg = "being in untrusted group";
87407+#endif
87408+ }
87409+ if (!msg && gr_acl_tpe_check())
87410+ msg = "being in untrusted role";
87411+
87412+ // not in any affected group/role
87413+ if (!msg)
87414+ goto next_check;
87415+
87416+ if (gr_is_global_nonroot(inode->i_uid))
87417+ msg2 = "file in non-root-owned directory";
87418+ else if (inode->i_mode & S_IWOTH)
87419+ msg2 = "file in world-writable directory";
87420+ else if (inode->i_mode & S_IWGRP)
87421+ msg2 = "file in group-writable directory";
87422+ else if (file_inode->i_mode & S_IWOTH)
87423+ msg2 = "file is world-writable";
87424+
87425+ if (msg && msg2) {
87426+ char fullmsg[70] = {0};
87427+ snprintf(fullmsg, sizeof(fullmsg)-1, "%s and %s", msg, msg2);
87428+ gr_log_str_fs(GR_DONT_AUDIT, GR_EXEC_TPE_MSG, fullmsg, file->f_path.dentry, file->f_path.mnt);
87429+ return 0;
87430+ }
87431+ msg = NULL;
87432+next_check:
87433+#ifdef CONFIG_GRKERNSEC_TPE_ALL
87434+ if (!grsec_enable_tpe || !grsec_enable_tpe_all)
87435+ return 1;
87436+
87437+ if (gr_is_global_nonroot(inode->i_uid) && !uid_eq(inode->i_uid, cred->uid))
87438+ msg = "directory not owned by user";
87439+ else if (inode->i_mode & S_IWOTH)
87440+ msg = "file in world-writable directory";
87441+ else if (inode->i_mode & S_IWGRP)
87442+ msg = "file in group-writable directory";
87443+ else if (file_inode->i_mode & S_IWOTH)
87444+ msg = "file is world-writable";
87445+
87446+ if (msg) {
87447+ gr_log_str_fs(GR_DONT_AUDIT, GR_EXEC_TPE_MSG, msg, file->f_path.dentry, file->f_path.mnt);
87448+ return 0;
87449+ }
87450+#endif
87451+#endif
87452+ return 1;
87453+}
87454diff --git a/grsecurity/grsec_usb.c b/grsecurity/grsec_usb.c
87455new file mode 100644
87456index 0000000..ae02d8e
87457--- /dev/null
87458+++ b/grsecurity/grsec_usb.c
87459@@ -0,0 +1,15 @@
87460+#include <linux/kernel.h>
87461+#include <linux/grinternal.h>
87462+#include <linux/module.h>
87463+
87464+int gr_handle_new_usb(void)
87465+{
87466+#ifdef CONFIG_GRKERNSEC_DENYUSB
87467+ if (grsec_deny_new_usb) {
87468+ printk(KERN_ALERT "grsec: denied insert of new USB device\n");
87469+ return 1;
87470+ }
87471+#endif
87472+ return 0;
87473+}
87474+EXPORT_SYMBOL_GPL(gr_handle_new_usb);
87475diff --git a/grsecurity/grsum.c b/grsecurity/grsum.c
87476new file mode 100644
87477index 0000000..158b330
87478--- /dev/null
87479+++ b/grsecurity/grsum.c
87480@@ -0,0 +1,64 @@
87481+#include <linux/err.h>
87482+#include <linux/kernel.h>
87483+#include <linux/sched.h>
87484+#include <linux/mm.h>
87485+#include <linux/scatterlist.h>
87486+#include <linux/crypto.h>
87487+#include <linux/gracl.h>
87488+
87489+
87490+#if !defined(CONFIG_CRYPTO) || defined(CONFIG_CRYPTO_MODULE) || !defined(CONFIG_CRYPTO_SHA256) || defined(CONFIG_CRYPTO_SHA256_MODULE)
87491+#error "crypto and sha256 must be built into the kernel"
87492+#endif
87493+
87494+int
87495+chkpw(struct gr_arg *entry, unsigned char *salt, unsigned char *sum)
87496+{
87497+ struct crypto_hash *tfm;
87498+ struct hash_desc desc;
87499+ struct scatterlist sg[2];
87500+ unsigned char temp_sum[GR_SHA_LEN] __attribute__((aligned(__alignof__(unsigned long))));
87501+ unsigned long *tmpsumptr = (unsigned long *)temp_sum;
87502+ unsigned long *sumptr = (unsigned long *)sum;
87503+ int cryptres;
87504+ int retval = 1;
87505+ volatile int mismatched = 0;
87506+ volatile int dummy = 0;
87507+ unsigned int i;
87508+
87509+ tfm = crypto_alloc_hash("sha256", 0, CRYPTO_ALG_ASYNC);
87510+ if (IS_ERR(tfm)) {
87511+ /* should never happen, since sha256 should be built in */
87512+ memset(entry->pw, 0, GR_PW_LEN);
87513+ return 1;
87514+ }
87515+
87516+ sg_init_table(sg, 2);
87517+ sg_set_buf(&sg[0], salt, GR_SALT_LEN);
87518+ sg_set_buf(&sg[1], entry->pw, strlen(entry->pw));
87519+
87520+ desc.tfm = tfm;
87521+ desc.flags = 0;
87522+
87523+ cryptres = crypto_hash_digest(&desc, sg, GR_SALT_LEN + strlen(entry->pw),
87524+ temp_sum);
87525+
87526+ memset(entry->pw, 0, GR_PW_LEN);
87527+
87528+ if (cryptres)
87529+ goto out;
87530+
87531+ for (i = 0; i < GR_SHA_LEN/sizeof(tmpsumptr[0]); i++)
87532+ if (sumptr[i] != tmpsumptr[i])
87533+ mismatched = 1;
87534+ else
87535+ dummy = 1; // waste a cycle
87536+
87537+ if (!mismatched)
87538+ retval = dummy - 1;
87539+
87540+out:
87541+ crypto_free_hash(tfm);
87542+
87543+ return retval;
87544+}
87545diff --git a/include/asm-generic/4level-fixup.h b/include/asm-generic/4level-fixup.h
87546index 5bdab6b..9ae82fe 100644
87547--- a/include/asm-generic/4level-fixup.h
87548+++ b/include/asm-generic/4level-fixup.h
87549@@ -14,8 +14,10 @@
87550 #define pmd_alloc(mm, pud, address) \
87551 ((unlikely(pgd_none(*(pud))) && __pmd_alloc(mm, pud, address))? \
87552 NULL: pmd_offset(pud, address))
87553+#define pmd_alloc_kernel(mm, pud, address) pmd_alloc((mm), (pud), (address))
87554
87555 #define pud_alloc(mm, pgd, address) (pgd)
87556+#define pud_alloc_kernel(mm, pgd, address) pud_alloc((mm), (pgd), (address))
87557 #define pud_offset(pgd, start) (pgd)
87558 #define pud_none(pud) 0
87559 #define pud_bad(pud) 0
87560diff --git a/include/asm-generic/atomic-long.h b/include/asm-generic/atomic-long.h
87561index b7babf0..1e4b4f1 100644
87562--- a/include/asm-generic/atomic-long.h
87563+++ b/include/asm-generic/atomic-long.h
87564@@ -22,6 +22,12 @@
87565
87566 typedef atomic64_t atomic_long_t;
87567
87568+#ifdef CONFIG_PAX_REFCOUNT
87569+typedef atomic64_unchecked_t atomic_long_unchecked_t;
87570+#else
87571+typedef atomic64_t atomic_long_unchecked_t;
87572+#endif
87573+
87574 #define ATOMIC_LONG_INIT(i) ATOMIC64_INIT(i)
87575
87576 static inline long atomic_long_read(atomic_long_t *l)
87577@@ -31,6 +37,15 @@ static inline long atomic_long_read(atomic_long_t *l)
87578 return (long)atomic64_read(v);
87579 }
87580
87581+#ifdef CONFIG_PAX_REFCOUNT
87582+static inline long atomic_long_read_unchecked(atomic_long_unchecked_t *l)
87583+{
87584+ atomic64_unchecked_t *v = (atomic64_unchecked_t *)l;
87585+
87586+ return (long)atomic64_read_unchecked(v);
87587+}
87588+#endif
87589+
87590 static inline void atomic_long_set(atomic_long_t *l, long i)
87591 {
87592 atomic64_t *v = (atomic64_t *)l;
87593@@ -38,6 +53,15 @@ static inline void atomic_long_set(atomic_long_t *l, long i)
87594 atomic64_set(v, i);
87595 }
87596
87597+#ifdef CONFIG_PAX_REFCOUNT
87598+static inline void atomic_long_set_unchecked(atomic_long_unchecked_t *l, long i)
87599+{
87600+ atomic64_unchecked_t *v = (atomic64_unchecked_t *)l;
87601+
87602+ atomic64_set_unchecked(v, i);
87603+}
87604+#endif
87605+
87606 static inline void atomic_long_inc(atomic_long_t *l)
87607 {
87608 atomic64_t *v = (atomic64_t *)l;
87609@@ -45,6 +69,15 @@ static inline void atomic_long_inc(atomic_long_t *l)
87610 atomic64_inc(v);
87611 }
87612
87613+#ifdef CONFIG_PAX_REFCOUNT
87614+static inline void atomic_long_inc_unchecked(atomic_long_unchecked_t *l)
87615+{
87616+ atomic64_unchecked_t *v = (atomic64_unchecked_t *)l;
87617+
87618+ atomic64_inc_unchecked(v);
87619+}
87620+#endif
87621+
87622 static inline void atomic_long_dec(atomic_long_t *l)
87623 {
87624 atomic64_t *v = (atomic64_t *)l;
87625@@ -52,6 +85,15 @@ static inline void atomic_long_dec(atomic_long_t *l)
87626 atomic64_dec(v);
87627 }
87628
87629+#ifdef CONFIG_PAX_REFCOUNT
87630+static inline void atomic_long_dec_unchecked(atomic_long_unchecked_t *l)
87631+{
87632+ atomic64_unchecked_t *v = (atomic64_unchecked_t *)l;
87633+
87634+ atomic64_dec_unchecked(v);
87635+}
87636+#endif
87637+
87638 static inline void atomic_long_add(long i, atomic_long_t *l)
87639 {
87640 atomic64_t *v = (atomic64_t *)l;
87641@@ -59,6 +101,15 @@ static inline void atomic_long_add(long i, atomic_long_t *l)
87642 atomic64_add(i, v);
87643 }
87644
87645+#ifdef CONFIG_PAX_REFCOUNT
87646+static inline void atomic_long_add_unchecked(long i, atomic_long_unchecked_t *l)
87647+{
87648+ atomic64_unchecked_t *v = (atomic64_unchecked_t *)l;
87649+
87650+ atomic64_add_unchecked(i, v);
87651+}
87652+#endif
87653+
87654 static inline void atomic_long_sub(long i, atomic_long_t *l)
87655 {
87656 atomic64_t *v = (atomic64_t *)l;
87657@@ -66,6 +117,15 @@ static inline void atomic_long_sub(long i, atomic_long_t *l)
87658 atomic64_sub(i, v);
87659 }
87660
87661+#ifdef CONFIG_PAX_REFCOUNT
87662+static inline void atomic_long_sub_unchecked(long i, atomic_long_unchecked_t *l)
87663+{
87664+ atomic64_unchecked_t *v = (atomic64_unchecked_t *)l;
87665+
87666+ atomic64_sub_unchecked(i, v);
87667+}
87668+#endif
87669+
87670 static inline int atomic_long_sub_and_test(long i, atomic_long_t *l)
87671 {
87672 atomic64_t *v = (atomic64_t *)l;
87673@@ -94,13 +154,22 @@ static inline int atomic_long_add_negative(long i, atomic_long_t *l)
87674 return atomic64_add_negative(i, v);
87675 }
87676
87677-static inline long atomic_long_add_return(long i, atomic_long_t *l)
87678+static inline long __intentional_overflow(-1) atomic_long_add_return(long i, atomic_long_t *l)
87679 {
87680 atomic64_t *v = (atomic64_t *)l;
87681
87682 return (long)atomic64_add_return(i, v);
87683 }
87684
87685+#ifdef CONFIG_PAX_REFCOUNT
87686+static inline long atomic_long_add_return_unchecked(long i, atomic_long_unchecked_t *l)
87687+{
87688+ atomic64_unchecked_t *v = (atomic64_unchecked_t *)l;
87689+
87690+ return (long)atomic64_add_return_unchecked(i, v);
87691+}
87692+#endif
87693+
87694 static inline long atomic_long_sub_return(long i, atomic_long_t *l)
87695 {
87696 atomic64_t *v = (atomic64_t *)l;
87697@@ -115,6 +184,15 @@ static inline long atomic_long_inc_return(atomic_long_t *l)
87698 return (long)atomic64_inc_return(v);
87699 }
87700
87701+#ifdef CONFIG_PAX_REFCOUNT
87702+static inline long atomic_long_inc_return_unchecked(atomic_long_unchecked_t *l)
87703+{
87704+ atomic64_unchecked_t *v = (atomic64_unchecked_t *)l;
87705+
87706+ return (long)atomic64_inc_return_unchecked(v);
87707+}
87708+#endif
87709+
87710 static inline long atomic_long_dec_return(atomic_long_t *l)
87711 {
87712 atomic64_t *v = (atomic64_t *)l;
87713@@ -140,6 +218,12 @@ static inline long atomic_long_add_unless(atomic_long_t *l, long a, long u)
87714
87715 typedef atomic_t atomic_long_t;
87716
87717+#ifdef CONFIG_PAX_REFCOUNT
87718+typedef atomic_unchecked_t atomic_long_unchecked_t;
87719+#else
87720+typedef atomic_t atomic_long_unchecked_t;
87721+#endif
87722+
87723 #define ATOMIC_LONG_INIT(i) ATOMIC_INIT(i)
87724 static inline long atomic_long_read(atomic_long_t *l)
87725 {
87726@@ -148,6 +232,15 @@ static inline long atomic_long_read(atomic_long_t *l)
87727 return (long)atomic_read(v);
87728 }
87729
87730+#ifdef CONFIG_PAX_REFCOUNT
87731+static inline long atomic_long_read_unchecked(atomic_long_unchecked_t *l)
87732+{
87733+ atomic_unchecked_t *v = (atomic_unchecked_t *)l;
87734+
87735+ return (long)atomic_read_unchecked(v);
87736+}
87737+#endif
87738+
87739 static inline void atomic_long_set(atomic_long_t *l, long i)
87740 {
87741 atomic_t *v = (atomic_t *)l;
87742@@ -155,6 +248,15 @@ static inline void atomic_long_set(atomic_long_t *l, long i)
87743 atomic_set(v, i);
87744 }
87745
87746+#ifdef CONFIG_PAX_REFCOUNT
87747+static inline void atomic_long_set_unchecked(atomic_long_unchecked_t *l, long i)
87748+{
87749+ atomic_unchecked_t *v = (atomic_unchecked_t *)l;
87750+
87751+ atomic_set_unchecked(v, i);
87752+}
87753+#endif
87754+
87755 static inline void atomic_long_inc(atomic_long_t *l)
87756 {
87757 atomic_t *v = (atomic_t *)l;
87758@@ -162,6 +264,15 @@ static inline void atomic_long_inc(atomic_long_t *l)
87759 atomic_inc(v);
87760 }
87761
87762+#ifdef CONFIG_PAX_REFCOUNT
87763+static inline void atomic_long_inc_unchecked(atomic_long_unchecked_t *l)
87764+{
87765+ atomic_unchecked_t *v = (atomic_unchecked_t *)l;
87766+
87767+ atomic_inc_unchecked(v);
87768+}
87769+#endif
87770+
87771 static inline void atomic_long_dec(atomic_long_t *l)
87772 {
87773 atomic_t *v = (atomic_t *)l;
87774@@ -169,6 +280,15 @@ static inline void atomic_long_dec(atomic_long_t *l)
87775 atomic_dec(v);
87776 }
87777
87778+#ifdef CONFIG_PAX_REFCOUNT
87779+static inline void atomic_long_dec_unchecked(atomic_long_unchecked_t *l)
87780+{
87781+ atomic_unchecked_t *v = (atomic_unchecked_t *)l;
87782+
87783+ atomic_dec_unchecked(v);
87784+}
87785+#endif
87786+
87787 static inline void atomic_long_add(long i, atomic_long_t *l)
87788 {
87789 atomic_t *v = (atomic_t *)l;
87790@@ -176,6 +296,15 @@ static inline void atomic_long_add(long i, atomic_long_t *l)
87791 atomic_add(i, v);
87792 }
87793
87794+#ifdef CONFIG_PAX_REFCOUNT
87795+static inline void atomic_long_add_unchecked(long i, atomic_long_unchecked_t *l)
87796+{
87797+ atomic_unchecked_t *v = (atomic_unchecked_t *)l;
87798+
87799+ atomic_add_unchecked(i, v);
87800+}
87801+#endif
87802+
87803 static inline void atomic_long_sub(long i, atomic_long_t *l)
87804 {
87805 atomic_t *v = (atomic_t *)l;
87806@@ -183,6 +312,15 @@ static inline void atomic_long_sub(long i, atomic_long_t *l)
87807 atomic_sub(i, v);
87808 }
87809
87810+#ifdef CONFIG_PAX_REFCOUNT
87811+static inline void atomic_long_sub_unchecked(long i, atomic_long_unchecked_t *l)
87812+{
87813+ atomic_unchecked_t *v = (atomic_unchecked_t *)l;
87814+
87815+ atomic_sub_unchecked(i, v);
87816+}
87817+#endif
87818+
87819 static inline int atomic_long_sub_and_test(long i, atomic_long_t *l)
87820 {
87821 atomic_t *v = (atomic_t *)l;
87822@@ -211,13 +349,23 @@ static inline int atomic_long_add_negative(long i, atomic_long_t *l)
87823 return atomic_add_negative(i, v);
87824 }
87825
87826-static inline long atomic_long_add_return(long i, atomic_long_t *l)
87827+static inline long __intentional_overflow(-1) atomic_long_add_return(long i, atomic_long_t *l)
87828 {
87829 atomic_t *v = (atomic_t *)l;
87830
87831 return (long)atomic_add_return(i, v);
87832 }
87833
87834+#ifdef CONFIG_PAX_REFCOUNT
87835+static inline long atomic_long_add_return_unchecked(long i, atomic_long_unchecked_t *l)
87836+{
87837+ atomic_unchecked_t *v = (atomic_unchecked_t *)l;
87838+
87839+ return (long)atomic_add_return_unchecked(i, v);
87840+}
87841+
87842+#endif
87843+
87844 static inline long atomic_long_sub_return(long i, atomic_long_t *l)
87845 {
87846 atomic_t *v = (atomic_t *)l;
87847@@ -232,6 +380,15 @@ static inline long atomic_long_inc_return(atomic_long_t *l)
87848 return (long)atomic_inc_return(v);
87849 }
87850
87851+#ifdef CONFIG_PAX_REFCOUNT
87852+static inline long atomic_long_inc_return_unchecked(atomic_long_unchecked_t *l)
87853+{
87854+ atomic_unchecked_t *v = (atomic_unchecked_t *)l;
87855+
87856+ return (long)atomic_inc_return_unchecked(v);
87857+}
87858+#endif
87859+
87860 static inline long atomic_long_dec_return(atomic_long_t *l)
87861 {
87862 atomic_t *v = (atomic_t *)l;
87863@@ -255,4 +412,57 @@ static inline long atomic_long_add_unless(atomic_long_t *l, long a, long u)
87864
87865 #endif /* BITS_PER_LONG == 64 */
87866
87867+#ifdef CONFIG_PAX_REFCOUNT
87868+static inline void pax_refcount_needs_these_functions(void)
87869+{
87870+ atomic_read_unchecked((atomic_unchecked_t *)NULL);
87871+ atomic_set_unchecked((atomic_unchecked_t *)NULL, 0);
87872+ atomic_add_unchecked(0, (atomic_unchecked_t *)NULL);
87873+ atomic_sub_unchecked(0, (atomic_unchecked_t *)NULL);
87874+ atomic_inc_unchecked((atomic_unchecked_t *)NULL);
87875+ (void)atomic_inc_and_test_unchecked((atomic_unchecked_t *)NULL);
87876+ atomic_inc_return_unchecked((atomic_unchecked_t *)NULL);
87877+ atomic_add_return_unchecked(0, (atomic_unchecked_t *)NULL);
87878+ atomic_dec_unchecked((atomic_unchecked_t *)NULL);
87879+ atomic_cmpxchg_unchecked((atomic_unchecked_t *)NULL, 0, 0);
87880+ (void)atomic_xchg_unchecked((atomic_unchecked_t *)NULL, 0);
87881+#ifdef CONFIG_X86
87882+ atomic_clear_mask_unchecked(0, NULL);
87883+ atomic_set_mask_unchecked(0, NULL);
87884+#endif
87885+
87886+ atomic_long_read_unchecked((atomic_long_unchecked_t *)NULL);
87887+ atomic_long_set_unchecked((atomic_long_unchecked_t *)NULL, 0);
87888+ atomic_long_add_unchecked(0, (atomic_long_unchecked_t *)NULL);
87889+ atomic_long_sub_unchecked(0, (atomic_long_unchecked_t *)NULL);
87890+ atomic_long_inc_unchecked((atomic_long_unchecked_t *)NULL);
87891+ atomic_long_add_return_unchecked(0, (atomic_long_unchecked_t *)NULL);
87892+ atomic_long_inc_return_unchecked((atomic_long_unchecked_t *)NULL);
87893+ atomic_long_dec_unchecked((atomic_long_unchecked_t *)NULL);
87894+}
87895+#else
87896+#define atomic_read_unchecked(v) atomic_read(v)
87897+#define atomic_set_unchecked(v, i) atomic_set((v), (i))
87898+#define atomic_add_unchecked(i, v) atomic_add((i), (v))
87899+#define atomic_sub_unchecked(i, v) atomic_sub((i), (v))
87900+#define atomic_inc_unchecked(v) atomic_inc(v)
87901+#define atomic_inc_and_test_unchecked(v) atomic_inc_and_test(v)
87902+#define atomic_inc_return_unchecked(v) atomic_inc_return(v)
87903+#define atomic_add_return_unchecked(i, v) atomic_add_return((i), (v))
87904+#define atomic_dec_unchecked(v) atomic_dec(v)
87905+#define atomic_cmpxchg_unchecked(v, o, n) atomic_cmpxchg((v), (o), (n))
87906+#define atomic_xchg_unchecked(v, i) atomic_xchg((v), (i))
87907+#define atomic_clear_mask_unchecked(mask, v) atomic_clear_mask((mask), (v))
87908+#define atomic_set_mask_unchecked(mask, v) atomic_set_mask((mask), (v))
87909+
87910+#define atomic_long_read_unchecked(v) atomic_long_read(v)
87911+#define atomic_long_set_unchecked(v, i) atomic_long_set((v), (i))
87912+#define atomic_long_add_unchecked(i, v) atomic_long_add((i), (v))
87913+#define atomic_long_sub_unchecked(i, v) atomic_long_sub((i), (v))
87914+#define atomic_long_inc_unchecked(v) atomic_long_inc(v)
87915+#define atomic_long_add_return_unchecked(i, v) atomic_long_add_return((i), (v))
87916+#define atomic_long_inc_return_unchecked(v) atomic_long_inc_return(v)
87917+#define atomic_long_dec_unchecked(v) atomic_long_dec(v)
87918+#endif
87919+
87920 #endif /* _ASM_GENERIC_ATOMIC_LONG_H */
87921diff --git a/include/asm-generic/atomic64.h b/include/asm-generic/atomic64.h
87922index 30ad9c8..c70c170 100644
87923--- a/include/asm-generic/atomic64.h
87924+++ b/include/asm-generic/atomic64.h
87925@@ -16,6 +16,8 @@ typedef struct {
87926 long long counter;
87927 } atomic64_t;
87928
87929+typedef atomic64_t atomic64_unchecked_t;
87930+
87931 #define ATOMIC64_INIT(i) { (i) }
87932
87933 extern long long atomic64_read(const atomic64_t *v);
87934@@ -51,4 +53,14 @@ extern int atomic64_add_unless(atomic64_t *v, long long a, long long u);
87935 #define atomic64_dec_and_test(v) (atomic64_dec_return((v)) == 0)
87936 #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1LL, 0LL)
87937
87938+#define atomic64_read_unchecked(v) atomic64_read(v)
87939+#define atomic64_set_unchecked(v, i) atomic64_set((v), (i))
87940+#define atomic64_add_unchecked(a, v) atomic64_add((a), (v))
87941+#define atomic64_add_return_unchecked(a, v) atomic64_add_return((a), (v))
87942+#define atomic64_sub_unchecked(a, v) atomic64_sub((a), (v))
87943+#define atomic64_inc_unchecked(v) atomic64_inc(v)
87944+#define atomic64_inc_return_unchecked(v) atomic64_inc_return(v)
87945+#define atomic64_dec_unchecked(v) atomic64_dec(v)
87946+#define atomic64_cmpxchg_unchecked(v, o, n) atomic64_cmpxchg((v), (o), (n))
87947+
87948 #endif /* _ASM_GENERIC_ATOMIC64_H */
87949diff --git a/include/asm-generic/barrier.h b/include/asm-generic/barrier.h
87950index f5c40b0..e902f9d 100644
87951--- a/include/asm-generic/barrier.h
87952+++ b/include/asm-generic/barrier.h
87953@@ -82,7 +82,7 @@
87954 do { \
87955 compiletime_assert_atomic_type(*p); \
87956 smp_mb(); \
87957- ACCESS_ONCE(*p) = (v); \
87958+ ACCESS_ONCE_RW(*p) = (v); \
87959 } while (0)
87960
87961 #define smp_load_acquire(p) \
87962diff --git a/include/asm-generic/bitops/__fls.h b/include/asm-generic/bitops/__fls.h
87963index a60a7cc..0fe12f2 100644
87964--- a/include/asm-generic/bitops/__fls.h
87965+++ b/include/asm-generic/bitops/__fls.h
87966@@ -9,7 +9,7 @@
87967 *
87968 * Undefined if no set bit exists, so code should check against 0 first.
87969 */
87970-static __always_inline unsigned long __fls(unsigned long word)
87971+static __always_inline unsigned long __intentional_overflow(-1) __fls(unsigned long word)
87972 {
87973 int num = BITS_PER_LONG - 1;
87974
87975diff --git a/include/asm-generic/bitops/fls.h b/include/asm-generic/bitops/fls.h
87976index 0576d1f..dad6c71 100644
87977--- a/include/asm-generic/bitops/fls.h
87978+++ b/include/asm-generic/bitops/fls.h
87979@@ -9,7 +9,7 @@
87980 * Note fls(0) = 0, fls(1) = 1, fls(0x80000000) = 32.
87981 */
87982
87983-static __always_inline int fls(int x)
87984+static __always_inline int __intentional_overflow(-1) fls(int x)
87985 {
87986 int r = 32;
87987
87988diff --git a/include/asm-generic/bitops/fls64.h b/include/asm-generic/bitops/fls64.h
87989index b097cf8..3d40e14 100644
87990--- a/include/asm-generic/bitops/fls64.h
87991+++ b/include/asm-generic/bitops/fls64.h
87992@@ -15,7 +15,7 @@
87993 * at position 64.
87994 */
87995 #if BITS_PER_LONG == 32
87996-static __always_inline int fls64(__u64 x)
87997+static __always_inline int __intentional_overflow(-1) fls64(__u64 x)
87998 {
87999 __u32 h = x >> 32;
88000 if (h)
88001@@ -23,7 +23,7 @@ static __always_inline int fls64(__u64 x)
88002 return fls(x);
88003 }
88004 #elif BITS_PER_LONG == 64
88005-static __always_inline int fls64(__u64 x)
88006+static __always_inline int __intentional_overflow(-1) fls64(__u64 x)
88007 {
88008 if (x == 0)
88009 return 0;
88010diff --git a/include/asm-generic/bug.h b/include/asm-generic/bug.h
88011index 630dd23..8c1dcb6b 100644
88012--- a/include/asm-generic/bug.h
88013+++ b/include/asm-generic/bug.h
88014@@ -62,13 +62,13 @@ struct bug_entry {
88015 * to provide better diagnostics.
88016 */
88017 #ifndef __WARN_TAINT
88018-extern __printf(3, 4)
88019+extern __printf(3, 4) __nocapture(1, 3, 4)
88020 void warn_slowpath_fmt(const char *file, const int line,
88021 const char *fmt, ...);
88022-extern __printf(4, 5)
88023+extern __printf(4, 5) __nocapture(1, 4, 5)
88024 void warn_slowpath_fmt_taint(const char *file, const int line, unsigned taint,
88025 const char *fmt, ...);
88026-extern void warn_slowpath_null(const char *file, const int line);
88027+extern __nocapture(1) void warn_slowpath_null(const char *file, const int line);
88028 #define WANT_WARN_ON_SLOWPATH
88029 #define __WARN() warn_slowpath_null(__FILE__, __LINE__)
88030 #define __WARN_printf(arg...) warn_slowpath_fmt(__FILE__, __LINE__, arg)
88031diff --git a/include/asm-generic/cache.h b/include/asm-generic/cache.h
88032index 1bfcfe5..e04c5c9 100644
88033--- a/include/asm-generic/cache.h
88034+++ b/include/asm-generic/cache.h
88035@@ -6,7 +6,7 @@
88036 * cache lines need to provide their own cache.h.
88037 */
88038
88039-#define L1_CACHE_SHIFT 5
88040-#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
88041+#define L1_CACHE_SHIFT 5UL
88042+#define L1_CACHE_BYTES (1UL << L1_CACHE_SHIFT)
88043
88044 #endif /* __ASM_GENERIC_CACHE_H */
88045diff --git a/include/asm-generic/emergency-restart.h b/include/asm-generic/emergency-restart.h
88046index 0d68a1e..b74a761 100644
88047--- a/include/asm-generic/emergency-restart.h
88048+++ b/include/asm-generic/emergency-restart.h
88049@@ -1,7 +1,7 @@
88050 #ifndef _ASM_GENERIC_EMERGENCY_RESTART_H
88051 #define _ASM_GENERIC_EMERGENCY_RESTART_H
88052
88053-static inline void machine_emergency_restart(void)
88054+static inline __noreturn void machine_emergency_restart(void)
88055 {
88056 machine_restart(NULL);
88057 }
88058diff --git a/include/asm-generic/kmap_types.h b/include/asm-generic/kmap_types.h
88059index 90f99c7..00ce236 100644
88060--- a/include/asm-generic/kmap_types.h
88061+++ b/include/asm-generic/kmap_types.h
88062@@ -2,9 +2,9 @@
88063 #define _ASM_GENERIC_KMAP_TYPES_H
88064
88065 #ifdef __WITH_KM_FENCE
88066-# define KM_TYPE_NR 41
88067+# define KM_TYPE_NR 42
88068 #else
88069-# define KM_TYPE_NR 20
88070+# define KM_TYPE_NR 21
88071 #endif
88072
88073 #endif
88074diff --git a/include/asm-generic/local.h b/include/asm-generic/local.h
88075index 9ceb03b..62b0b8f 100644
88076--- a/include/asm-generic/local.h
88077+++ b/include/asm-generic/local.h
88078@@ -23,24 +23,37 @@ typedef struct
88079 atomic_long_t a;
88080 } local_t;
88081
88082+typedef struct {
88083+ atomic_long_unchecked_t a;
88084+} local_unchecked_t;
88085+
88086 #define LOCAL_INIT(i) { ATOMIC_LONG_INIT(i) }
88087
88088 #define local_read(l) atomic_long_read(&(l)->a)
88089+#define local_read_unchecked(l) atomic_long_read_unchecked(&(l)->a)
88090 #define local_set(l,i) atomic_long_set((&(l)->a),(i))
88091+#define local_set_unchecked(l,i) atomic_long_set_unchecked((&(l)->a),(i))
88092 #define local_inc(l) atomic_long_inc(&(l)->a)
88093+#define local_inc_unchecked(l) atomic_long_inc_unchecked(&(l)->a)
88094 #define local_dec(l) atomic_long_dec(&(l)->a)
88095+#define local_dec_unchecked(l) atomic_long_dec_unchecked(&(l)->a)
88096 #define local_add(i,l) atomic_long_add((i),(&(l)->a))
88097+#define local_add_unchecked(i,l) atomic_long_add_unchecked((i),(&(l)->a))
88098 #define local_sub(i,l) atomic_long_sub((i),(&(l)->a))
88099+#define local_sub_unchecked(i,l) atomic_long_sub_unchecked((i),(&(l)->a))
88100
88101 #define local_sub_and_test(i, l) atomic_long_sub_and_test((i), (&(l)->a))
88102 #define local_dec_and_test(l) atomic_long_dec_and_test(&(l)->a)
88103 #define local_inc_and_test(l) atomic_long_inc_and_test(&(l)->a)
88104 #define local_add_negative(i, l) atomic_long_add_negative((i), (&(l)->a))
88105 #define local_add_return(i, l) atomic_long_add_return((i), (&(l)->a))
88106+#define local_add_return_unchecked(i, l) atomic_long_add_return_unchecked((i), (&(l)->a))
88107 #define local_sub_return(i, l) atomic_long_sub_return((i), (&(l)->a))
88108 #define local_inc_return(l) atomic_long_inc_return(&(l)->a)
88109+#define local_dec_return(l) atomic_long_dec_return(&(l)->a)
88110
88111 #define local_cmpxchg(l, o, n) atomic_long_cmpxchg((&(l)->a), (o), (n))
88112+#define local_cmpxchg_unchecked(l, o, n) atomic_long_cmpxchg((&(l)->a), (o), (n))
88113 #define local_xchg(l, n) atomic_long_xchg((&(l)->a), (n))
88114 #define local_add_unless(l, _a, u) atomic_long_add_unless((&(l)->a), (_a), (u))
88115 #define local_inc_not_zero(l) atomic_long_inc_not_zero(&(l)->a)
88116diff --git a/include/asm-generic/pgtable-nopmd.h b/include/asm-generic/pgtable-nopmd.h
88117index 725612b..9cc513a 100644
88118--- a/include/asm-generic/pgtable-nopmd.h
88119+++ b/include/asm-generic/pgtable-nopmd.h
88120@@ -1,14 +1,19 @@
88121 #ifndef _PGTABLE_NOPMD_H
88122 #define _PGTABLE_NOPMD_H
88123
88124-#ifndef __ASSEMBLY__
88125-
88126 #include <asm-generic/pgtable-nopud.h>
88127
88128-struct mm_struct;
88129-
88130 #define __PAGETABLE_PMD_FOLDED
88131
88132+#define PMD_SHIFT PUD_SHIFT
88133+#define PTRS_PER_PMD 1
88134+#define PMD_SIZE (_AC(1,UL) << PMD_SHIFT)
88135+#define PMD_MASK (~(PMD_SIZE-1))
88136+
88137+#ifndef __ASSEMBLY__
88138+
88139+struct mm_struct;
88140+
88141 /*
88142 * Having the pmd type consist of a pud gets the size right, and allows
88143 * us to conceptually access the pud entry that this pmd is folded into
88144@@ -16,11 +21,6 @@ struct mm_struct;
88145 */
88146 typedef struct { pud_t pud; } pmd_t;
88147
88148-#define PMD_SHIFT PUD_SHIFT
88149-#define PTRS_PER_PMD 1
88150-#define PMD_SIZE (1UL << PMD_SHIFT)
88151-#define PMD_MASK (~(PMD_SIZE-1))
88152-
88153 /*
88154 * The "pud_xxx()" functions here are trivial for a folded two-level
88155 * setup: the pmd is never bad, and a pmd always exists (as it's folded
88156diff --git a/include/asm-generic/pgtable-nopud.h b/include/asm-generic/pgtable-nopud.h
88157index 810431d..0ec4804f 100644
88158--- a/include/asm-generic/pgtable-nopud.h
88159+++ b/include/asm-generic/pgtable-nopud.h
88160@@ -1,10 +1,15 @@
88161 #ifndef _PGTABLE_NOPUD_H
88162 #define _PGTABLE_NOPUD_H
88163
88164-#ifndef __ASSEMBLY__
88165-
88166 #define __PAGETABLE_PUD_FOLDED
88167
88168+#define PUD_SHIFT PGDIR_SHIFT
88169+#define PTRS_PER_PUD 1
88170+#define PUD_SIZE (_AC(1,UL) << PUD_SHIFT)
88171+#define PUD_MASK (~(PUD_SIZE-1))
88172+
88173+#ifndef __ASSEMBLY__
88174+
88175 /*
88176 * Having the pud type consist of a pgd gets the size right, and allows
88177 * us to conceptually access the pgd entry that this pud is folded into
88178@@ -12,11 +17,6 @@
88179 */
88180 typedef struct { pgd_t pgd; } pud_t;
88181
88182-#define PUD_SHIFT PGDIR_SHIFT
88183-#define PTRS_PER_PUD 1
88184-#define PUD_SIZE (1UL << PUD_SHIFT)
88185-#define PUD_MASK (~(PUD_SIZE-1))
88186-
88187 /*
88188 * The "pgd_xxx()" functions here are trivial for a folded two-level
88189 * setup: the pud is never bad, and a pud always exists (as it's folded
88190@@ -29,6 +29,7 @@ static inline void pgd_clear(pgd_t *pgd) { }
88191 #define pud_ERROR(pud) (pgd_ERROR((pud).pgd))
88192
88193 #define pgd_populate(mm, pgd, pud) do { } while (0)
88194+#define pgd_populate_kernel(mm, pgd, pud) do { } while (0)
88195 /*
88196 * (puds are folded into pgds so this doesn't get actually called,
88197 * but the define is needed for a generic inline function.)
88198diff --git a/include/asm-generic/pgtable.h b/include/asm-generic/pgtable.h
88199index 4d46085..f4e92ef 100644
88200--- a/include/asm-generic/pgtable.h
88201+++ b/include/asm-generic/pgtable.h
88202@@ -689,6 +689,22 @@ static inline int pmd_protnone(pmd_t pmd)
88203 }
88204 #endif /* CONFIG_NUMA_BALANCING */
88205
88206+#ifndef __HAVE_ARCH_PAX_OPEN_KERNEL
88207+#ifdef CONFIG_PAX_KERNEXEC
88208+#error KERNEXEC requires pax_open_kernel
88209+#else
88210+static inline unsigned long pax_open_kernel(void) { return 0; }
88211+#endif
88212+#endif
88213+
88214+#ifndef __HAVE_ARCH_PAX_CLOSE_KERNEL
88215+#ifdef CONFIG_PAX_KERNEXEC
88216+#error KERNEXEC requires pax_close_kernel
88217+#else
88218+static inline unsigned long pax_close_kernel(void) { return 0; }
88219+#endif
88220+#endif
88221+
88222 #endif /* CONFIG_MMU */
88223
88224 #endif /* !__ASSEMBLY__ */
88225diff --git a/include/asm-generic/uaccess.h b/include/asm-generic/uaccess.h
88226index 72d8803..cb9749c 100644
88227--- a/include/asm-generic/uaccess.h
88228+++ b/include/asm-generic/uaccess.h
88229@@ -343,4 +343,20 @@ clear_user(void __user *to, unsigned long n)
88230 return __clear_user(to, n);
88231 }
88232
88233+#ifndef __HAVE_ARCH_PAX_OPEN_USERLAND
88234+#ifdef CONFIG_PAX_MEMORY_UDEREF
88235+#error UDEREF requires pax_open_userland
88236+#else
88237+static inline unsigned long pax_open_userland(void) { return 0; }
88238+#endif
88239+#endif
88240+
88241+#ifndef __HAVE_ARCH_PAX_CLOSE_USERLAND
88242+#ifdef CONFIG_PAX_MEMORY_UDEREF
88243+#error UDEREF requires pax_close_userland
88244+#else
88245+static inline unsigned long pax_close_userland(void) { return 0; }
88246+#endif
88247+#endif
88248+
88249 #endif /* __ASM_GENERIC_UACCESS_H */
88250diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
88251index ac78910..8b5f068 100644
88252--- a/include/asm-generic/vmlinux.lds.h
88253+++ b/include/asm-generic/vmlinux.lds.h
88254@@ -234,6 +234,7 @@
88255 .rodata : AT(ADDR(.rodata) - LOAD_OFFSET) { \
88256 VMLINUX_SYMBOL(__start_rodata) = .; \
88257 *(.rodata) *(.rodata.*) \
88258+ *(.data..read_only) \
88259 *(__vermagic) /* Kernel version magic */ \
88260 . = ALIGN(8); \
88261 VMLINUX_SYMBOL(__start___tracepoints_ptrs) = .; \
88262@@ -492,6 +493,7 @@
88263 KERNEL_CTORS() \
88264 MCOUNT_REC() \
88265 *(.init.rodata) \
88266+ *(.init.rodata.*) \
88267 FTRACE_EVENTS() \
88268 TRACE_SYSCALLS() \
88269 KPROBE_BLACKLIST() \
88270@@ -511,6 +513,8 @@
88271
88272 #define EXIT_DATA \
88273 *(.exit.data) \
88274+ *(.exit.rodata) \
88275+ *(.exit.rodata.*) \
88276 MEM_DISCARD(exit.data) \
88277 MEM_DISCARD(exit.rodata)
88278
88279@@ -727,17 +731,18 @@
88280 * section in the linker script will go there too. @phdr should have
88281 * a leading colon.
88282 *
88283- * Note that this macros defines __per_cpu_load as an absolute symbol.
88284+ * Note that this macros defines per_cpu_load as an absolute symbol.
88285 * If there is no need to put the percpu section at a predetermined
88286 * address, use PERCPU_SECTION.
88287 */
88288 #define PERCPU_VADDR(cacheline, vaddr, phdr) \
88289- VMLINUX_SYMBOL(__per_cpu_load) = .; \
88290- .data..percpu vaddr : AT(VMLINUX_SYMBOL(__per_cpu_load) \
88291+ per_cpu_load = .; \
88292+ .data..percpu vaddr : AT(VMLINUX_SYMBOL(per_cpu_load) \
88293 - LOAD_OFFSET) { \
88294+ VMLINUX_SYMBOL(__per_cpu_load) = . + per_cpu_load; \
88295 PERCPU_INPUT(cacheline) \
88296 } phdr \
88297- . = VMLINUX_SYMBOL(__per_cpu_load) + SIZEOF(.data..percpu);
88298+ . = VMLINUX_SYMBOL(per_cpu_load) + SIZEOF(.data..percpu);
88299
88300 /**
88301 * PERCPU_SECTION - define output section for percpu area, simple version
88302diff --git a/include/crypto/algapi.h b/include/crypto/algapi.h
88303index 623a59c..1e79ab9 100644
88304--- a/include/crypto/algapi.h
88305+++ b/include/crypto/algapi.h
88306@@ -34,7 +34,7 @@ struct crypto_type {
88307 unsigned int maskclear;
88308 unsigned int maskset;
88309 unsigned int tfmsize;
88310-};
88311+} __do_const;
88312
88313 struct crypto_instance {
88314 struct crypto_alg alg;
88315diff --git a/include/drm/drmP.h b/include/drm/drmP.h
88316index e928625..ff97886 100644
88317--- a/include/drm/drmP.h
88318+++ b/include/drm/drmP.h
88319@@ -59,6 +59,7 @@
88320
88321 #include <asm/mman.h>
88322 #include <asm/pgalloc.h>
88323+#include <asm/local.h>
88324 #include <asm/uaccess.h>
88325
88326 #include <uapi/drm/drm.h>
88327@@ -133,17 +134,18 @@ void drm_err(const char *format, ...);
88328 /*@{*/
88329
88330 /* driver capabilities and requirements mask */
88331-#define DRIVER_USE_AGP 0x1
88332-#define DRIVER_PCI_DMA 0x8
88333-#define DRIVER_SG 0x10
88334-#define DRIVER_HAVE_DMA 0x20
88335-#define DRIVER_HAVE_IRQ 0x40
88336-#define DRIVER_IRQ_SHARED 0x80
88337-#define DRIVER_GEM 0x1000
88338-#define DRIVER_MODESET 0x2000
88339-#define DRIVER_PRIME 0x4000
88340-#define DRIVER_RENDER 0x8000
88341-#define DRIVER_ATOMIC 0x10000
88342+#define DRIVER_USE_AGP 0x1
88343+#define DRIVER_PCI_DMA 0x8
88344+#define DRIVER_SG 0x10
88345+#define DRIVER_HAVE_DMA 0x20
88346+#define DRIVER_HAVE_IRQ 0x40
88347+#define DRIVER_IRQ_SHARED 0x80
88348+#define DRIVER_GEM 0x1000
88349+#define DRIVER_MODESET 0x2000
88350+#define DRIVER_PRIME 0x4000
88351+#define DRIVER_RENDER 0x8000
88352+#define DRIVER_ATOMIC 0x10000
88353+#define DRIVER_KMS_LEGACY_CONTEXT 0x20000
88354
88355 /***********************************************************************/
88356 /** \name Macros to make printk easier */
88357@@ -224,10 +226,12 @@ void drm_err(const char *format, ...);
88358 * \param cmd command.
88359 * \param arg argument.
88360 */
88361-typedef int drm_ioctl_t(struct drm_device *dev, void *data,
88362+typedef int (* const drm_ioctl_t)(struct drm_device *dev, void *data,
88363+ struct drm_file *file_priv);
88364+typedef int (* drm_ioctl_no_const_t)(struct drm_device *dev, void *data,
88365 struct drm_file *file_priv);
88366
88367-typedef int drm_ioctl_compat_t(struct file *filp, unsigned int cmd,
88368+typedef int (* const drm_ioctl_compat_t)(struct file *filp, unsigned int cmd,
88369 unsigned long arg);
88370
88371 #define DRM_IOCTL_NR(n) _IOC_NR(n)
88372@@ -243,10 +247,10 @@ typedef int drm_ioctl_compat_t(struct file *filp, unsigned int cmd,
88373 struct drm_ioctl_desc {
88374 unsigned int cmd;
88375 int flags;
88376- drm_ioctl_t *func;
88377+ drm_ioctl_t func;
88378 unsigned int cmd_drv;
88379 const char *name;
88380-};
88381+} __do_const;
88382
88383 /**
88384 * Creates a driver or general drm_ioctl_desc array entry for the given
88385@@ -632,7 +636,8 @@ struct drm_info_list {
88386 int (*show)(struct seq_file*, void*); /** show callback */
88387 u32 driver_features; /**< Required driver features for this entry */
88388 void *data;
88389-};
88390+} __do_const;
88391+typedef struct drm_info_list __no_const drm_info_list_no_const;
88392
88393 /**
88394 * debugfs node structure. This structure represents a debugfs file.
88395@@ -716,7 +721,7 @@ struct drm_device {
88396
88397 /** \name Usage Counters */
88398 /*@{ */
88399- int open_count; /**< Outstanding files open, protected by drm_global_mutex. */
88400+ local_t open_count; /**< Outstanding files open, protected by drm_global_mutex. */
88401 spinlock_t buf_lock; /**< For drm_device::buf_use and a few other things. */
88402 int buf_use; /**< Buffers in use -- cannot alloc */
88403 atomic_t buf_alloc; /**< Buffer allocation in progress */
88404diff --git a/include/drm/drm_crtc_helper.h b/include/drm/drm_crtc_helper.h
88405index c250a22..59d2094 100644
88406--- a/include/drm/drm_crtc_helper.h
88407+++ b/include/drm/drm_crtc_helper.h
88408@@ -160,7 +160,7 @@ struct drm_encoder_helper_funcs {
88409 int (*atomic_check)(struct drm_encoder *encoder,
88410 struct drm_crtc_state *crtc_state,
88411 struct drm_connector_state *conn_state);
88412-};
88413+} __no_const;
88414
88415 /**
88416 * struct drm_connector_helper_funcs - helper operations for connectors
88417diff --git a/include/drm/i915_pciids.h b/include/drm/i915_pciids.h
88418index d016dc5..3951fe0 100644
88419--- a/include/drm/i915_pciids.h
88420+++ b/include/drm/i915_pciids.h
88421@@ -37,7 +37,7 @@
88422 */
88423 #define INTEL_VGA_DEVICE(id, info) { \
88424 0x8086, id, \
88425- ~0, ~0, \
88426+ PCI_ANY_ID, PCI_ANY_ID, \
88427 0x030000, 0xff0000, \
88428 (unsigned long) info }
88429
88430diff --git a/include/drm/ttm/ttm_memory.h b/include/drm/ttm/ttm_memory.h
88431index 72dcbe8..8db58d7 100644
88432--- a/include/drm/ttm/ttm_memory.h
88433+++ b/include/drm/ttm/ttm_memory.h
88434@@ -48,7 +48,7 @@
88435
88436 struct ttm_mem_shrink {
88437 int (*do_shrink) (struct ttm_mem_shrink *);
88438-};
88439+} __no_const;
88440
88441 /**
88442 * struct ttm_mem_global - Global memory accounting structure.
88443diff --git a/include/drm/ttm/ttm_page_alloc.h b/include/drm/ttm/ttm_page_alloc.h
88444index 49a8284..9643967 100644
88445--- a/include/drm/ttm/ttm_page_alloc.h
88446+++ b/include/drm/ttm/ttm_page_alloc.h
88447@@ -80,6 +80,7 @@ void ttm_dma_page_alloc_fini(void);
88448 */
88449 extern int ttm_dma_page_alloc_debugfs(struct seq_file *m, void *data);
88450
88451+struct device;
88452 extern int ttm_dma_populate(struct ttm_dma_tt *ttm_dma, struct device *dev);
88453 extern void ttm_dma_unpopulate(struct ttm_dma_tt *ttm_dma, struct device *dev);
88454
88455diff --git a/include/keys/asymmetric-subtype.h b/include/keys/asymmetric-subtype.h
88456index 4b840e8..155d235 100644
88457--- a/include/keys/asymmetric-subtype.h
88458+++ b/include/keys/asymmetric-subtype.h
88459@@ -37,7 +37,7 @@ struct asymmetric_key_subtype {
88460 /* Verify the signature on a key of this subtype (optional) */
88461 int (*verify_signature)(const struct key *key,
88462 const struct public_key_signature *sig);
88463-};
88464+} __do_const;
88465
88466 /**
88467 * asymmetric_key_subtype - Get the subtype from an asymmetric key
88468diff --git a/include/linux/atmdev.h b/include/linux/atmdev.h
88469index c1da539..1dcec55 100644
88470--- a/include/linux/atmdev.h
88471+++ b/include/linux/atmdev.h
88472@@ -28,7 +28,7 @@ struct compat_atm_iobuf {
88473 #endif
88474
88475 struct k_atm_aal_stats {
88476-#define __HANDLE_ITEM(i) atomic_t i
88477+#define __HANDLE_ITEM(i) atomic_unchecked_t i
88478 __AAL_STAT_ITEMS
88479 #undef __HANDLE_ITEM
88480 };
88481@@ -200,7 +200,7 @@ struct atmdev_ops { /* only send is required */
88482 int (*change_qos)(struct atm_vcc *vcc,struct atm_qos *qos,int flags);
88483 int (*proc_read)(struct atm_dev *dev,loff_t *pos,char *page);
88484 struct module *owner;
88485-};
88486+} __do_const ;
88487
88488 struct atmphy_ops {
88489 int (*start)(struct atm_dev *dev);
88490diff --git a/include/linux/atomic.h b/include/linux/atomic.h
88491index 5b08a85..60922fb 100644
88492--- a/include/linux/atomic.h
88493+++ b/include/linux/atomic.h
88494@@ -12,7 +12,7 @@
88495 * Atomically adds @a to @v, so long as @v was not already @u.
88496 * Returns non-zero if @v was not @u, and zero otherwise.
88497 */
88498-static inline int atomic_add_unless(atomic_t *v, int a, int u)
88499+static inline int __intentional_overflow(-1) atomic_add_unless(atomic_t *v, int a, int u)
88500 {
88501 return __atomic_add_unless(v, a, u) != u;
88502 }
88503diff --git a/include/linux/audit.h b/include/linux/audit.h
88504index c2e7e3a..8bfc0e1 100644
88505--- a/include/linux/audit.h
88506+++ b/include/linux/audit.h
88507@@ -223,7 +223,7 @@ static inline void audit_ptrace(struct task_struct *t)
88508 extern unsigned int audit_serial(void);
88509 extern int auditsc_get_stamp(struct audit_context *ctx,
88510 struct timespec *t, unsigned int *serial);
88511-extern int audit_set_loginuid(kuid_t loginuid);
88512+extern int __intentional_overflow(-1) audit_set_loginuid(kuid_t loginuid);
88513
88514 static inline kuid_t audit_get_loginuid(struct task_struct *tsk)
88515 {
88516diff --git a/include/linux/binfmts.h b/include/linux/binfmts.h
88517index 576e463..28fd926 100644
88518--- a/include/linux/binfmts.h
88519+++ b/include/linux/binfmts.h
88520@@ -44,7 +44,7 @@ struct linux_binprm {
88521 unsigned interp_flags;
88522 unsigned interp_data;
88523 unsigned long loader, exec;
88524-};
88525+} __randomize_layout;
88526
88527 #define BINPRM_FLAGS_ENFORCE_NONDUMP_BIT 0
88528 #define BINPRM_FLAGS_ENFORCE_NONDUMP (1 << BINPRM_FLAGS_ENFORCE_NONDUMP_BIT)
88529@@ -77,8 +77,10 @@ struct linux_binfmt {
88530 int (*load_binary)(struct linux_binprm *);
88531 int (*load_shlib)(struct file *);
88532 int (*core_dump)(struct coredump_params *cprm);
88533+ void (*handle_mprotect)(struct vm_area_struct *vma, unsigned long newflags);
88534+ void (*handle_mmap)(struct file *);
88535 unsigned long min_coredump; /* minimal dump size */
88536-};
88537+} __do_const __randomize_layout;
88538
88539 extern void __register_binfmt(struct linux_binfmt *fmt, int insert);
88540
88541diff --git a/include/linux/bitmap.h b/include/linux/bitmap.h
88542index dbfbf49..10be372 100644
88543--- a/include/linux/bitmap.h
88544+++ b/include/linux/bitmap.h
88545@@ -299,7 +299,7 @@ static inline int bitmap_full(const unsigned long *src, unsigned int nbits)
88546 return __bitmap_full(src, nbits);
88547 }
88548
88549-static inline int bitmap_weight(const unsigned long *src, unsigned int nbits)
88550+static inline int __intentional_overflow(-1) bitmap_weight(const unsigned long *src, unsigned int nbits)
88551 {
88552 if (small_const_nbits(nbits))
88553 return hweight_long(*src & BITMAP_LAST_WORD_MASK(nbits));
88554diff --git a/include/linux/bitops.h b/include/linux/bitops.h
88555index 5d858e0..336c1d9 100644
88556--- a/include/linux/bitops.h
88557+++ b/include/linux/bitops.h
88558@@ -105,7 +105,7 @@ static inline __u64 ror64(__u64 word, unsigned int shift)
88559 * @word: value to rotate
88560 * @shift: bits to roll
88561 */
88562-static inline __u32 rol32(__u32 word, unsigned int shift)
88563+static inline __u32 __intentional_overflow(-1) rol32(__u32 word, unsigned int shift)
88564 {
88565 return (word << shift) | (word >> (32 - shift));
88566 }
88567@@ -115,7 +115,7 @@ static inline __u32 rol32(__u32 word, unsigned int shift)
88568 * @word: value to rotate
88569 * @shift: bits to roll
88570 */
88571-static inline __u32 ror32(__u32 word, unsigned int shift)
88572+static inline __u32 __intentional_overflow(-1) ror32(__u32 word, unsigned int shift)
88573 {
88574 return (word >> shift) | (word << (32 - shift));
88575 }
88576@@ -171,7 +171,7 @@ static inline __s32 sign_extend32(__u32 value, int index)
88577 return (__s32)(value << shift) >> shift;
88578 }
88579
88580-static inline unsigned fls_long(unsigned long l)
88581+static inline unsigned __intentional_overflow(-1) fls_long(unsigned long l)
88582 {
88583 if (sizeof(l) == 4)
88584 return fls(l);
88585diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
88586index 7f9a516..8889453 100644
88587--- a/include/linux/blkdev.h
88588+++ b/include/linux/blkdev.h
88589@@ -1616,7 +1616,7 @@ struct block_device_operations {
88590 /* this callback is with swap_lock and sometimes page table lock held */
88591 void (*swap_slot_free_notify) (struct block_device *, unsigned long);
88592 struct module *owner;
88593-};
88594+} __do_const;
88595
88596 extern int __blkdev_driver_ioctl(struct block_device *, fmode_t, unsigned int,
88597 unsigned long);
88598diff --git a/include/linux/blktrace_api.h b/include/linux/blktrace_api.h
88599index afc1343..9735539 100644
88600--- a/include/linux/blktrace_api.h
88601+++ b/include/linux/blktrace_api.h
88602@@ -25,7 +25,7 @@ struct blk_trace {
88603 struct dentry *dropped_file;
88604 struct dentry *msg_file;
88605 struct list_head running_list;
88606- atomic_t dropped;
88607+ atomic_unchecked_t dropped;
88608 };
88609
88610 extern int blk_trace_ioctl(struct block_device *, unsigned, char __user *);
88611diff --git a/include/linux/cache.h b/include/linux/cache.h
88612index 17e7e82..1d7da26 100644
88613--- a/include/linux/cache.h
88614+++ b/include/linux/cache.h
88615@@ -16,6 +16,14 @@
88616 #define __read_mostly
88617 #endif
88618
88619+#ifndef __read_only
88620+#ifdef CONFIG_PAX_KERNEXEC
88621+#error KERNEXEC requires __read_only
88622+#else
88623+#define __read_only __read_mostly
88624+#endif
88625+#endif
88626+
88627 #ifndef ____cacheline_aligned
88628 #define ____cacheline_aligned __attribute__((__aligned__(SMP_CACHE_BYTES)))
88629 #endif
88630diff --git a/include/linux/capability.h b/include/linux/capability.h
88631index aa93e5e..985a1b0 100644
88632--- a/include/linux/capability.h
88633+++ b/include/linux/capability.h
88634@@ -214,9 +214,14 @@ extern bool has_ns_capability_noaudit(struct task_struct *t,
88635 extern bool capable(int cap);
88636 extern bool ns_capable(struct user_namespace *ns, int cap);
88637 extern bool capable_wrt_inode_uidgid(const struct inode *inode, int cap);
88638+extern bool capable_wrt_inode_uidgid_nolog(const struct inode *inode, int cap);
88639 extern bool file_ns_capable(const struct file *file, struct user_namespace *ns, int cap);
88640+extern bool capable_nolog(int cap);
88641+extern bool ns_capable_nolog(struct user_namespace *ns, int cap);
88642
88643 /* audit system wants to get cap info from files as well */
88644 extern int get_vfs_caps_from_disk(const struct dentry *dentry, struct cpu_vfs_cap_data *cpu_caps);
88645
88646+extern int is_privileged_binary(const struct dentry *dentry);
88647+
88648 #endif /* !_LINUX_CAPABILITY_H */
88649diff --git a/include/linux/cdrom.h b/include/linux/cdrom.h
88650index 8609d57..86e4d79 100644
88651--- a/include/linux/cdrom.h
88652+++ b/include/linux/cdrom.h
88653@@ -87,7 +87,6 @@ struct cdrom_device_ops {
88654
88655 /* driver specifications */
88656 const int capability; /* capability flags */
88657- int n_minors; /* number of active minor devices */
88658 /* handle uniform packets for scsi type devices (scsi,atapi) */
88659 int (*generic_packet) (struct cdrom_device_info *,
88660 struct packet_command *);
88661diff --git a/include/linux/cleancache.h b/include/linux/cleancache.h
88662index 4ce9056..86caac6 100644
88663--- a/include/linux/cleancache.h
88664+++ b/include/linux/cleancache.h
88665@@ -31,7 +31,7 @@ struct cleancache_ops {
88666 void (*invalidate_page)(int, struct cleancache_filekey, pgoff_t);
88667 void (*invalidate_inode)(int, struct cleancache_filekey);
88668 void (*invalidate_fs)(int);
88669-};
88670+} __no_const;
88671
88672 extern struct cleancache_ops *
88673 cleancache_register_ops(struct cleancache_ops *ops);
88674diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h
88675index 5591ea7..61b77ce 100644
88676--- a/include/linux/clk-provider.h
88677+++ b/include/linux/clk-provider.h
88678@@ -195,6 +195,7 @@ struct clk_ops {
88679 void (*init)(struct clk_hw *hw);
88680 int (*debug_init)(struct clk_hw *hw, struct dentry *dentry);
88681 };
88682+typedef struct clk_ops __no_const clk_ops_no_const;
88683
88684 /**
88685 * struct clk_init_data - holds init data that's common to all clocks and is
88686diff --git a/include/linux/compat.h b/include/linux/compat.h
88687index ab25814..d1540d1 100644
88688--- a/include/linux/compat.h
88689+++ b/include/linux/compat.h
88690@@ -316,7 +316,7 @@ compat_sys_get_robust_list(int pid, compat_uptr_t __user *head_ptr,
88691 compat_size_t __user *len_ptr);
88692
88693 asmlinkage long compat_sys_ipc(u32, int, int, u32, compat_uptr_t, u32);
88694-asmlinkage long compat_sys_shmat(int shmid, compat_uptr_t shmaddr, int shmflg);
88695+asmlinkage long compat_sys_shmat(int shmid, compat_uptr_t shmaddr, int shmflg) __intentional_overflow(0);
88696 asmlinkage long compat_sys_semctl(int semid, int semnum, int cmd, int arg);
88697 asmlinkage long compat_sys_msgsnd(int msqid, compat_uptr_t msgp,
88698 compat_ssize_t msgsz, int msgflg);
88699@@ -325,7 +325,7 @@ asmlinkage long compat_sys_msgrcv(int msqid, compat_uptr_t msgp,
88700 long compat_sys_msgctl(int first, int second, void __user *uptr);
88701 long compat_sys_shmctl(int first, int second, void __user *uptr);
88702 long compat_sys_semtimedop(int semid, struct sembuf __user *tsems,
88703- unsigned nsems, const struct compat_timespec __user *timeout);
88704+ compat_long_t nsems, const struct compat_timespec __user *timeout);
88705 asmlinkage long compat_sys_keyctl(u32 option,
88706 u32 arg2, u32 arg3, u32 arg4, u32 arg5);
88707 asmlinkage long compat_sys_ustat(unsigned dev, struct compat_ustat __user *u32);
88708@@ -439,7 +439,7 @@ extern int compat_ptrace_request(struct task_struct *child,
88709 extern long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
88710 compat_ulong_t addr, compat_ulong_t data);
88711 asmlinkage long compat_sys_ptrace(compat_long_t request, compat_long_t pid,
88712- compat_long_t addr, compat_long_t data);
88713+ compat_ulong_t addr, compat_ulong_t data);
88714
88715 asmlinkage long compat_sys_lookup_dcookie(u32, u32, char __user *, compat_size_t);
88716 /*
88717diff --git a/include/linux/compiler-gcc.h b/include/linux/compiler-gcc.h
88718index cdf13ca..ba5e086 100644
88719--- a/include/linux/compiler-gcc.h
88720+++ b/include/linux/compiler-gcc.h
88721@@ -94,8 +94,8 @@
88722 */
88723 #define __pure __attribute__((pure))
88724 #define __aligned(x) __attribute__((aligned(x)))
88725-#define __printf(a, b) __attribute__((format(printf, a, b)))
88726-#define __scanf(a, b) __attribute__((format(scanf, a, b)))
88727+#define __printf(a, b) __attribute__((format(printf, a, b))) __nocapture(a, b)
88728+#define __scanf(a, b) __attribute__((format(scanf, a, b))) __nocapture(a, b)
88729 #define noinline __attribute__((noinline))
88730 #define __attribute_const__ __attribute__((__const__))
88731 #define __maybe_unused __attribute__((unused))
88732diff --git a/include/linux/compiler-gcc4.h b/include/linux/compiler-gcc4.h
88733index 769e198..7ee7cb5 100644
88734--- a/include/linux/compiler-gcc4.h
88735+++ b/include/linux/compiler-gcc4.h
88736@@ -39,9 +39,38 @@
88737 # define __compiletime_warning(message) __attribute__((warning(message)))
88738 # define __compiletime_error(message) __attribute__((error(message)))
88739 #endif /* __CHECKER__ */
88740+
88741+#define __alloc_size(...) __attribute((alloc_size(__VA_ARGS__)))
88742+#define __bos(ptr, arg) __builtin_object_size((ptr), (arg))
88743+#define __bos0(ptr) __bos((ptr), 0)
88744+#define __bos1(ptr) __bos((ptr), 1)
88745 #endif /* GCC_VERSION >= 40300 */
88746
88747 #if GCC_VERSION >= 40500
88748+
88749+#ifdef RANDSTRUCT_PLUGIN
88750+#define __randomize_layout __attribute__((randomize_layout))
88751+#define __no_randomize_layout __attribute__((no_randomize_layout))
88752+#endif
88753+
88754+#ifdef CONSTIFY_PLUGIN
88755+#define __no_const __attribute__((no_const))
88756+#define __do_const __attribute__((do_const))
88757+#endif
88758+
88759+#ifdef SIZE_OVERFLOW_PLUGIN
88760+#define __size_overflow(...) __attribute__((size_overflow(__VA_ARGS__)))
88761+#define __intentional_overflow(...) __attribute__((intentional_overflow(__VA_ARGS__)))
88762+#endif
88763+
88764+#ifdef LATENT_ENTROPY_PLUGIN
88765+#define __latent_entropy __attribute__((latent_entropy))
88766+#endif
88767+
88768+#ifdef INITIFY_PLUGIN
88769+#define __nocapture(...) __attribute__((nocapture(__VA_ARGS__)))
88770+#endif
88771+
88772 /*
88773 * Mark a position in code as unreachable. This can be used to
88774 * suppress control flow warnings after asm blocks that transfer
88775diff --git a/include/linux/compiler-gcc5.h b/include/linux/compiler-gcc5.h
88776index efee493..8aa8f6b 100644
88777--- a/include/linux/compiler-gcc5.h
88778+++ b/include/linux/compiler-gcc5.h
88779@@ -28,6 +28,34 @@
88780 # define __compiletime_error(message) __attribute__((error(message)))
88781 #endif /* __CHECKER__ */
88782
88783+#define __alloc_size(...) __attribute((alloc_size(__VA_ARGS__)))
88784+#define __bos(ptr, arg) __builtin_object_size((ptr), (arg))
88785+#define __bos0(ptr) __bos((ptr), 0)
88786+#define __bos1(ptr) __bos((ptr), 1)
88787+
88788+#ifdef RANDSTRUCT_PLUGIN
88789+#define __randomize_layout __attribute__((randomize_layout))
88790+#define __no_randomize_layout __attribute__((no_randomize_layout))
88791+#endif
88792+
88793+#ifdef CONSTIFY_PLUGIN
88794+#define __no_const __attribute__((no_const))
88795+#define __do_const __attribute__((do_const))
88796+#endif
88797+
88798+#ifdef SIZE_OVERFLOW_PLUGIN
88799+#define __size_overflow(...) __attribute__((size_overflow(__VA_ARGS__)))
88800+#define __intentional_overflow(...) __attribute__((intentional_overflow(__VA_ARGS__)))
88801+#endif
88802+
88803+#ifdef LATENT_ENTROPY_PLUGIN
88804+#define __latent_entropy __attribute__((latent_entropy))
88805+#endif
88806+
88807+#ifdef INITIFY_PLUGIN
88808+#define __nocapture(...) __attribute__((nocapture(__VA_ARGS__)))
88809+#endif
88810+
88811 /*
88812 * Mark a position in code as unreachable. This can be used to
88813 * suppress control flow warnings after asm blocks that transfer
88814diff --git a/include/linux/compiler.h b/include/linux/compiler.h
88815index 1b45e4a..eff29a7 100644
88816--- a/include/linux/compiler.h
88817+++ b/include/linux/compiler.h
88818@@ -5,11 +5,14 @@
88819
88820 #ifdef __CHECKER__
88821 # define __user __attribute__((noderef, address_space(1)))
88822+# define __force_user __force __user
88823 # define __kernel __attribute__((address_space(0)))
88824+# define __force_kernel __force __kernel
88825 # define __safe __attribute__((safe))
88826 # define __force __attribute__((force))
88827 # define __nocast __attribute__((nocast))
88828 # define __iomem __attribute__((noderef, address_space(2)))
88829+# define __force_iomem __force __iomem
88830 # define __must_hold(x) __attribute__((context(x,1,1)))
88831 # define __acquires(x) __attribute__((context(x,0,1)))
88832 # define __releases(x) __attribute__((context(x,1,0)))
88833@@ -17,20 +20,37 @@
88834 # define __release(x) __context__(x,-1)
88835 # define __cond_lock(x,c) ((c) ? ({ __acquire(x); 1; }) : 0)
88836 # define __percpu __attribute__((noderef, address_space(3)))
88837+# define __force_percpu __force __percpu
88838 #ifdef CONFIG_SPARSE_RCU_POINTER
88839 # define __rcu __attribute__((noderef, address_space(4)))
88840+# define __force_rcu __force __rcu
88841 #else
88842 # define __rcu
88843+# define __force_rcu
88844 #endif
88845 extern void __chk_user_ptr(const volatile void __user *);
88846 extern void __chk_io_ptr(const volatile void __iomem *);
88847 #else
88848-# define __user
88849-# define __kernel
88850+# ifdef CHECKER_PLUGIN
88851+//# define __user
88852+//# define __force_user
88853+//# define __kernel
88854+//# define __force_kernel
88855+# else
88856+# ifdef STRUCTLEAK_PLUGIN
88857+# define __user __attribute__((user))
88858+# else
88859+# define __user
88860+# endif
88861+# define __force_user
88862+# define __kernel
88863+# define __force_kernel
88864+# endif
88865 # define __safe
88866 # define __force
88867 # define __nocast
88868 # define __iomem
88869+# define __force_iomem
88870 # define __chk_user_ptr(x) (void)0
88871 # define __chk_io_ptr(x) (void)0
88872 # define __builtin_warning(x, y...) (1)
88873@@ -41,7 +61,9 @@ extern void __chk_io_ptr(const volatile void __iomem *);
88874 # define __release(x) (void)0
88875 # define __cond_lock(x,c) (c)
88876 # define __percpu
88877+# define __force_percpu
88878 # define __rcu
88879+# define __force_rcu
88880 #endif
88881
88882 /* Indirect macros required for expanded argument pasting, eg. __LINE__. */
88883@@ -205,32 +227,32 @@ static __always_inline void data_access_exceeds_word_size(void)
88884 static __always_inline void __read_once_size(const volatile void *p, void *res, int size)
88885 {
88886 switch (size) {
88887- case 1: *(__u8 *)res = *(volatile __u8 *)p; break;
88888- case 2: *(__u16 *)res = *(volatile __u16 *)p; break;
88889- case 4: *(__u32 *)res = *(volatile __u32 *)p; break;
88890+ case 1: *(__u8 *)res = *(const volatile __u8 *)p; break;
88891+ case 2: *(__u16 *)res = *(const volatile __u16 *)p; break;
88892+ case 4: *(__u32 *)res = *(const volatile __u32 *)p; break;
88893 #ifdef CONFIG_64BIT
88894- case 8: *(__u64 *)res = *(volatile __u64 *)p; break;
88895+ case 8: *(__u64 *)res = *(const volatile __u64 *)p; break;
88896 #endif
88897 default:
88898 barrier();
88899- __builtin_memcpy((void *)res, (const void *)p, size);
88900+ __builtin_memcpy(res, (const void *)p, size);
88901 data_access_exceeds_word_size();
88902 barrier();
88903 }
88904 }
88905
88906-static __always_inline void __write_once_size(volatile void *p, void *res, int size)
88907+static __always_inline void __write_once_size(volatile void *p, const void *res, int size)
88908 {
88909 switch (size) {
88910- case 1: *(volatile __u8 *)p = *(__u8 *)res; break;
88911- case 2: *(volatile __u16 *)p = *(__u16 *)res; break;
88912- case 4: *(volatile __u32 *)p = *(__u32 *)res; break;
88913+ case 1: *(volatile __u8 *)p = *(const __u8 *)res; break;
88914+ case 2: *(volatile __u16 *)p = *(const __u16 *)res; break;
88915+ case 4: *(volatile __u32 *)p = *(const __u32 *)res; break;
88916 #ifdef CONFIG_64BIT
88917- case 8: *(volatile __u64 *)p = *(__u64 *)res; break;
88918+ case 8: *(volatile __u64 *)p = *(const __u64 *)res; break;
88919 #endif
88920 default:
88921 barrier();
88922- __builtin_memcpy((void *)p, (const void *)res, size);
88923+ __builtin_memcpy((void *)p, res, size);
88924 data_access_exceeds_word_size();
88925 barrier();
88926 }
88927@@ -364,6 +386,38 @@ static __always_inline void __write_once_size(volatile void *p, void *res, int s
88928 # define __attribute_const__ /* unimplemented */
88929 #endif
88930
88931+#ifndef __randomize_layout
88932+# define __randomize_layout
88933+#endif
88934+
88935+#ifndef __no_randomize_layout
88936+# define __no_randomize_layout
88937+#endif
88938+
88939+#ifndef __no_const
88940+# define __no_const
88941+#endif
88942+
88943+#ifndef __do_const
88944+# define __do_const
88945+#endif
88946+
88947+#ifndef __size_overflow
88948+# define __size_overflow(...)
88949+#endif
88950+
88951+#ifndef __intentional_overflow
88952+# define __intentional_overflow(...)
88953+#endif
88954+
88955+#ifndef __latent_entropy
88956+# define __latent_entropy
88957+#endif
88958+
88959+#ifndef __nocapture
88960+# define __nocapture(...)
88961+#endif
88962+
88963 /*
88964 * Tell gcc if a function is cold. The compiler will assume any path
88965 * directly leading to the call is unlikely.
88966@@ -373,6 +427,22 @@ static __always_inline void __write_once_size(volatile void *p, void *res, int s
88967 #define __cold
88968 #endif
88969
88970+#ifndef __alloc_size
88971+#define __alloc_size(...)
88972+#endif
88973+
88974+#ifndef __bos
88975+#define __bos(ptr, arg)
88976+#endif
88977+
88978+#ifndef __bos0
88979+#define __bos0(ptr)
88980+#endif
88981+
88982+#ifndef __bos1
88983+#define __bos1(ptr)
88984+#endif
88985+
88986 /* Simple shorthand for a section definition */
88987 #ifndef __section
88988 # define __section(S) __attribute__ ((__section__(#S)))
88989@@ -387,6 +457,8 @@ static __always_inline void __write_once_size(volatile void *p, void *res, int s
88990 # define __same_type(a, b) __builtin_types_compatible_p(typeof(a), typeof(b))
88991 #endif
88992
88993+#define __type_is_unsigned(t) (__same_type((t)0, 0UL) || __same_type((t)0, 0U) || __same_type((t)0, (unsigned short)0) || __same_type((t)0, (unsigned char)0))
88994+
88995 /* Is this type a native word size -- useful for atomic operations */
88996 #ifndef __native_word
88997 # define __native_word(t) (sizeof(t) == sizeof(char) || sizeof(t) == sizeof(short) || sizeof(t) == sizeof(int) || sizeof(t) == sizeof(long))
88998@@ -466,8 +538,9 @@ static __always_inline void __write_once_size(volatile void *p, void *res, int s
88999 */
89000 #define __ACCESS_ONCE(x) ({ \
89001 __maybe_unused typeof(x) __var = (__force typeof(x)) 0; \
89002- (volatile typeof(x) *)&(x); })
89003+ (volatile const typeof(x) *)&(x); })
89004 #define ACCESS_ONCE(x) (*__ACCESS_ONCE(x))
89005+#define ACCESS_ONCE_RW(x) (*(volatile typeof(x) *)&(x))
89006
89007 /* Ignore/forbid kprobes attach on very low level functions marked by this attribute: */
89008 #ifdef CONFIG_KPROBES
89009diff --git a/include/linux/completion.h b/include/linux/completion.h
89010index 5d5aaae..0ea9b84 100644
89011--- a/include/linux/completion.h
89012+++ b/include/linux/completion.h
89013@@ -90,16 +90,16 @@ static inline void reinit_completion(struct completion *x)
89014
89015 extern void wait_for_completion(struct completion *);
89016 extern void wait_for_completion_io(struct completion *);
89017-extern int wait_for_completion_interruptible(struct completion *x);
89018-extern int wait_for_completion_killable(struct completion *x);
89019+extern int wait_for_completion_interruptible(struct completion *x) __intentional_overflow(-1);
89020+extern int wait_for_completion_killable(struct completion *x) __intentional_overflow(-1);
89021 extern unsigned long wait_for_completion_timeout(struct completion *x,
89022- unsigned long timeout);
89023+ unsigned long timeout) __intentional_overflow(-1);
89024 extern unsigned long wait_for_completion_io_timeout(struct completion *x,
89025- unsigned long timeout);
89026+ unsigned long timeout) __intentional_overflow(-1);
89027 extern long wait_for_completion_interruptible_timeout(
89028- struct completion *x, unsigned long timeout);
89029+ struct completion *x, unsigned long timeout) __intentional_overflow(-1);
89030 extern long wait_for_completion_killable_timeout(
89031- struct completion *x, unsigned long timeout);
89032+ struct completion *x, unsigned long timeout) __intentional_overflow(-1);
89033 extern bool try_wait_for_completion(struct completion *x);
89034 extern bool completion_done(struct completion *x);
89035
89036diff --git a/include/linux/configfs.h b/include/linux/configfs.h
89037index 34025df..d94bbbc 100644
89038--- a/include/linux/configfs.h
89039+++ b/include/linux/configfs.h
89040@@ -125,7 +125,7 @@ struct configfs_attribute {
89041 const char *ca_name;
89042 struct module *ca_owner;
89043 umode_t ca_mode;
89044-};
89045+} __do_const;
89046
89047 /*
89048 * Users often need to create attribute structures for their configurable
89049diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
89050index 2ee4888..0451f5e 100644
89051--- a/include/linux/cpufreq.h
89052+++ b/include/linux/cpufreq.h
89053@@ -207,6 +207,7 @@ struct global_attr {
89054 ssize_t (*store)(struct kobject *a, struct attribute *b,
89055 const char *c, size_t count);
89056 };
89057+typedef struct global_attr __no_const global_attr_no_const;
89058
89059 #define define_one_global_ro(_name) \
89060 static struct global_attr _name = \
89061@@ -278,7 +279,7 @@ struct cpufreq_driver {
89062 bool boost_supported;
89063 bool boost_enabled;
89064 int (*set_boost)(int state);
89065-};
89066+} __do_const;
89067
89068 /* flags */
89069 #define CPUFREQ_STICKY (1 << 0) /* driver isn't removed even if
89070diff --git a/include/linux/cpuidle.h b/include/linux/cpuidle.h
89071index 9c5e892..feb34e0 100644
89072--- a/include/linux/cpuidle.h
89073+++ b/include/linux/cpuidle.h
89074@@ -59,7 +59,8 @@ struct cpuidle_state {
89075 void (*enter_freeze) (struct cpuidle_device *dev,
89076 struct cpuidle_driver *drv,
89077 int index);
89078-};
89079+} __do_const;
89080+typedef struct cpuidle_state __no_const cpuidle_state_no_const;
89081
89082 /* Idle State Flags */
89083 #define CPUIDLE_FLAG_COUPLED (0x02) /* state applies to multiple cpus */
89084@@ -227,7 +228,7 @@ struct cpuidle_governor {
89085 void (*reflect) (struct cpuidle_device *dev, int index);
89086
89087 struct module *owner;
89088-};
89089+} __do_const;
89090
89091 #ifdef CONFIG_CPU_IDLE
89092 extern int cpuidle_register_governor(struct cpuidle_governor *gov);
89093diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h
89094index 086549a..a572d94 100644
89095--- a/include/linux/cpumask.h
89096+++ b/include/linux/cpumask.h
89097@@ -126,17 +126,17 @@ static inline unsigned int cpumask_first(const struct cpumask *srcp)
89098 }
89099
89100 /* Valid inputs for n are -1 and 0. */
89101-static inline unsigned int cpumask_next(int n, const struct cpumask *srcp)
89102+static inline unsigned int __intentional_overflow(-1) cpumask_next(int n, const struct cpumask *srcp)
89103 {
89104 return n+1;
89105 }
89106
89107-static inline unsigned int cpumask_next_zero(int n, const struct cpumask *srcp)
89108+static inline unsigned int __intentional_overflow(-1) cpumask_next_zero(int n, const struct cpumask *srcp)
89109 {
89110 return n+1;
89111 }
89112
89113-static inline unsigned int cpumask_next_and(int n,
89114+static inline unsigned int __intentional_overflow(-1) cpumask_next_and(int n,
89115 const struct cpumask *srcp,
89116 const struct cpumask *andp)
89117 {
89118@@ -182,7 +182,7 @@ static inline unsigned int cpumask_first(const struct cpumask *srcp)
89119 *
89120 * Returns >= nr_cpu_ids if no further cpus set.
89121 */
89122-static inline unsigned int cpumask_next(int n, const struct cpumask *srcp)
89123+static inline unsigned int __intentional_overflow(-1) cpumask_next(int n, const struct cpumask *srcp)
89124 {
89125 /* -1 is a legal arg here. */
89126 if (n != -1)
89127@@ -197,7 +197,7 @@ static inline unsigned int cpumask_next(int n, const struct cpumask *srcp)
89128 *
89129 * Returns >= nr_cpu_ids if no further cpus unset.
89130 */
89131-static inline unsigned int cpumask_next_zero(int n, const struct cpumask *srcp)
89132+static inline unsigned int __intentional_overflow(-1) cpumask_next_zero(int n, const struct cpumask *srcp)
89133 {
89134 /* -1 is a legal arg here. */
89135 if (n != -1)
89136@@ -205,7 +205,7 @@ static inline unsigned int cpumask_next_zero(int n, const struct cpumask *srcp)
89137 return find_next_zero_bit(cpumask_bits(srcp), nr_cpumask_bits, n+1);
89138 }
89139
89140-int cpumask_next_and(int n, const struct cpumask *, const struct cpumask *);
89141+int cpumask_next_and(int n, const struct cpumask *, const struct cpumask *) __intentional_overflow(-1);
89142 int cpumask_any_but(const struct cpumask *mask, unsigned int cpu);
89143 int cpumask_set_cpu_local_first(int i, int numa_node, cpumask_t *dstp);
89144
89145@@ -472,7 +472,7 @@ static inline bool cpumask_full(const struct cpumask *srcp)
89146 * cpumask_weight - Count of bits in *srcp
89147 * @srcp: the cpumask to count bits (< nr_cpu_ids) in.
89148 */
89149-static inline unsigned int cpumask_weight(const struct cpumask *srcp)
89150+static inline unsigned int __intentional_overflow(-1) cpumask_weight(const struct cpumask *srcp)
89151 {
89152 return bitmap_weight(cpumask_bits(srcp), nr_cpumask_bits);
89153 }
89154diff --git a/include/linux/cred.h b/include/linux/cred.h
89155index 2fb2ca2..d6a3340 100644
89156--- a/include/linux/cred.h
89157+++ b/include/linux/cred.h
89158@@ -35,7 +35,7 @@ struct group_info {
89159 int nblocks;
89160 kgid_t small_block[NGROUPS_SMALL];
89161 kgid_t *blocks[0];
89162-};
89163+} __randomize_layout;
89164
89165 /**
89166 * get_group_info - Get a reference to a group info structure
89167@@ -137,7 +137,7 @@ struct cred {
89168 struct user_namespace *user_ns; /* user_ns the caps and keyrings are relative to. */
89169 struct group_info *group_info; /* supplementary groups for euid/fsgid */
89170 struct rcu_head rcu; /* RCU deletion hook */
89171-};
89172+} __randomize_layout;
89173
89174 extern void __put_cred(struct cred *);
89175 extern void exit_creds(struct task_struct *);
89176@@ -195,6 +195,9 @@ static inline void validate_creds_for_do_exit(struct task_struct *tsk)
89177 static inline void validate_process_creds(void)
89178 {
89179 }
89180+static inline void validate_task_creds(struct task_struct *task)
89181+{
89182+}
89183 #endif
89184
89185 /**
89186@@ -332,6 +335,7 @@ static inline void put_cred(const struct cred *_cred)
89187
89188 #define task_uid(task) (task_cred_xxx((task), uid))
89189 #define task_euid(task) (task_cred_xxx((task), euid))
89190+#define task_securebits(task) (task_cred_xxx((task), securebits))
89191
89192 #define current_cred_xxx(xxx) \
89193 ({ \
89194diff --git a/include/linux/crypto.h b/include/linux/crypto.h
89195index fb5ef16..05d1e59 100644
89196--- a/include/linux/crypto.h
89197+++ b/include/linux/crypto.h
89198@@ -626,7 +626,7 @@ struct cipher_tfm {
89199 const u8 *key, unsigned int keylen);
89200 void (*cit_encrypt_one)(struct crypto_tfm *tfm, u8 *dst, const u8 *src);
89201 void (*cit_decrypt_one)(struct crypto_tfm *tfm, u8 *dst, const u8 *src);
89202-};
89203+} __no_const;
89204
89205 struct hash_tfm {
89206 int (*init)(struct hash_desc *desc);
89207@@ -647,13 +647,13 @@ struct compress_tfm {
89208 int (*cot_decompress)(struct crypto_tfm *tfm,
89209 const u8 *src, unsigned int slen,
89210 u8 *dst, unsigned int *dlen);
89211-};
89212+} __no_const;
89213
89214 struct rng_tfm {
89215 int (*rng_gen_random)(struct crypto_rng *tfm, u8 *rdata,
89216 unsigned int dlen);
89217 int (*rng_reset)(struct crypto_rng *tfm, u8 *seed, unsigned int slen);
89218-};
89219+} __no_const;
89220
89221 #define crt_ablkcipher crt_u.ablkcipher
89222 #define crt_aead crt_u.aead
89223diff --git a/include/linux/ctype.h b/include/linux/ctype.h
89224index 653589e..4ef254a 100644
89225--- a/include/linux/ctype.h
89226+++ b/include/linux/ctype.h
89227@@ -56,7 +56,7 @@ static inline unsigned char __toupper(unsigned char c)
89228 * Fast implementation of tolower() for internal usage. Do not use in your
89229 * code.
89230 */
89231-static inline char _tolower(const char c)
89232+static inline unsigned char _tolower(const unsigned char c)
89233 {
89234 return c | 0x20;
89235 }
89236diff --git a/include/linux/dcache.h b/include/linux/dcache.h
89237index d835879..c8e5b92 100644
89238--- a/include/linux/dcache.h
89239+++ b/include/linux/dcache.h
89240@@ -123,6 +123,9 @@ struct dentry {
89241 unsigned long d_time; /* used by d_revalidate */
89242 void *d_fsdata; /* fs-specific data */
89243
89244+#ifdef CONFIG_GRKERNSEC_CHROOT_RENAME
89245+ atomic_t chroot_refcnt; /* tracks use of directory in chroot */
89246+#endif
89247 struct list_head d_lru; /* LRU list */
89248 struct list_head d_child; /* child of parent list */
89249 struct list_head d_subdirs; /* our children */
89250@@ -133,7 +136,7 @@ struct dentry {
89251 struct hlist_node d_alias; /* inode alias list */
89252 struct rcu_head d_rcu;
89253 } d_u;
89254-};
89255+} __randomize_layout;
89256
89257 /*
89258 * dentry->d_lock spinlock nesting subclasses:
89259@@ -319,7 +322,7 @@ extern struct dentry *__d_lookup_rcu(const struct dentry *parent,
89260
89261 static inline unsigned d_count(const struct dentry *dentry)
89262 {
89263- return dentry->d_lockref.count;
89264+ return __lockref_read(&dentry->d_lockref);
89265 }
89266
89267 /*
89268@@ -347,7 +350,7 @@ extern char *dentry_path(struct dentry *, char *, int);
89269 static inline struct dentry *dget_dlock(struct dentry *dentry)
89270 {
89271 if (dentry)
89272- dentry->d_lockref.count++;
89273+ __lockref_inc(&dentry->d_lockref);
89274 return dentry;
89275 }
89276
89277diff --git a/include/linux/decompress/mm.h b/include/linux/decompress/mm.h
89278index 7925bf0..d5143d2 100644
89279--- a/include/linux/decompress/mm.h
89280+++ b/include/linux/decompress/mm.h
89281@@ -77,7 +77,7 @@ static void free(void *where)
89282 * warnings when not needed (indeed large_malloc / large_free are not
89283 * needed by inflate */
89284
89285-#define malloc(a) kmalloc(a, GFP_KERNEL)
89286+#define malloc(a) kmalloc((a), GFP_KERNEL)
89287 #define free(a) kfree(a)
89288
89289 #define large_malloc(a) vmalloc(a)
89290diff --git a/include/linux/devfreq.h b/include/linux/devfreq.h
89291index ce447f0..83c66bd 100644
89292--- a/include/linux/devfreq.h
89293+++ b/include/linux/devfreq.h
89294@@ -114,7 +114,7 @@ struct devfreq_governor {
89295 int (*get_target_freq)(struct devfreq *this, unsigned long *freq);
89296 int (*event_handler)(struct devfreq *devfreq,
89297 unsigned int event, void *data);
89298-};
89299+} __do_const;
89300
89301 /**
89302 * struct devfreq - Device devfreq structure
89303diff --git a/include/linux/device.h b/include/linux/device.h
89304index 0eb8ee2..c603b6a 100644
89305--- a/include/linux/device.h
89306+++ b/include/linux/device.h
89307@@ -311,7 +311,7 @@ struct subsys_interface {
89308 struct list_head node;
89309 int (*add_dev)(struct device *dev, struct subsys_interface *sif);
89310 int (*remove_dev)(struct device *dev, struct subsys_interface *sif);
89311-};
89312+} __do_const;
89313
89314 int subsys_interface_register(struct subsys_interface *sif);
89315 void subsys_interface_unregister(struct subsys_interface *sif);
89316@@ -507,7 +507,7 @@ struct device_type {
89317 void (*release)(struct device *dev);
89318
89319 const struct dev_pm_ops *pm;
89320-};
89321+} __do_const;
89322
89323 /* interface for exporting device attributes */
89324 struct device_attribute {
89325@@ -517,11 +517,12 @@ struct device_attribute {
89326 ssize_t (*store)(struct device *dev, struct device_attribute *attr,
89327 const char *buf, size_t count);
89328 };
89329+typedef struct device_attribute __no_const device_attribute_no_const;
89330
89331 struct dev_ext_attribute {
89332 struct device_attribute attr;
89333 void *var;
89334-};
89335+} __do_const;
89336
89337 ssize_t device_show_ulong(struct device *dev, struct device_attribute *attr,
89338 char *buf);
89339diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
89340index c3007cb..43efc8c 100644
89341--- a/include/linux/dma-mapping.h
89342+++ b/include/linux/dma-mapping.h
89343@@ -60,7 +60,7 @@ struct dma_map_ops {
89344 u64 (*get_required_mask)(struct device *dev);
89345 #endif
89346 int is_phys;
89347-};
89348+} __do_const;
89349
89350 #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : ((1ULL<<(n))-1))
89351
89352diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
89353index b6997a0..108be6c 100644
89354--- a/include/linux/dmaengine.h
89355+++ b/include/linux/dmaengine.h
89356@@ -1133,9 +1133,9 @@ struct dma_pinned_list {
89357 struct dma_pinned_list *dma_pin_iovec_pages(struct iovec *iov, size_t len);
89358 void dma_unpin_iovec_pages(struct dma_pinned_list* pinned_list);
89359
89360-dma_cookie_t dma_memcpy_to_iovec(struct dma_chan *chan, struct iovec *iov,
89361+dma_cookie_t __intentional_overflow(0) dma_memcpy_to_iovec(struct dma_chan *chan, struct iovec *iov,
89362 struct dma_pinned_list *pinned_list, unsigned char *kdata, size_t len);
89363-dma_cookie_t dma_memcpy_pg_to_iovec(struct dma_chan *chan, struct iovec *iov,
89364+dma_cookie_t __intentional_overflow(0) dma_memcpy_pg_to_iovec(struct dma_chan *chan, struct iovec *iov,
89365 struct dma_pinned_list *pinned_list, struct page *page,
89366 unsigned int offset, size_t len);
89367
89368diff --git a/include/linux/efi.h b/include/linux/efi.h
89369index cf7e431..d239dce 100644
89370--- a/include/linux/efi.h
89371+++ b/include/linux/efi.h
89372@@ -1056,6 +1056,7 @@ struct efivar_operations {
89373 efi_set_variable_nonblocking_t *set_variable_nonblocking;
89374 efi_query_variable_store_t *query_variable_store;
89375 };
89376+typedef struct efivar_operations __no_const efivar_operations_no_const;
89377
89378 struct efivars {
89379 /*
89380diff --git a/include/linux/elf.h b/include/linux/elf.h
89381index 20fa8d8..3d0dd18 100644
89382--- a/include/linux/elf.h
89383+++ b/include/linux/elf.h
89384@@ -29,6 +29,7 @@ extern Elf32_Dyn _DYNAMIC [];
89385 #define elf_note elf32_note
89386 #define elf_addr_t Elf32_Off
89387 #define Elf_Half Elf32_Half
89388+#define elf_dyn Elf32_Dyn
89389
89390 #else
89391
89392@@ -39,6 +40,7 @@ extern Elf64_Dyn _DYNAMIC [];
89393 #define elf_note elf64_note
89394 #define elf_addr_t Elf64_Off
89395 #define Elf_Half Elf64_Half
89396+#define elf_dyn Elf64_Dyn
89397
89398 #endif
89399
89400diff --git a/include/linux/err.h b/include/linux/err.h
89401index a729120..6ede2c9 100644
89402--- a/include/linux/err.h
89403+++ b/include/linux/err.h
89404@@ -20,12 +20,12 @@
89405
89406 #define IS_ERR_VALUE(x) unlikely((x) >= (unsigned long)-MAX_ERRNO)
89407
89408-static inline void * __must_check ERR_PTR(long error)
89409+static inline void * __must_check __intentional_overflow(-1) ERR_PTR(long error)
89410 {
89411 return (void *) error;
89412 }
89413
89414-static inline long __must_check PTR_ERR(__force const void *ptr)
89415+static inline long __must_check __intentional_overflow(-1) PTR_ERR(__force const void *ptr)
89416 {
89417 return (long) ptr;
89418 }
89419diff --git a/include/linux/extcon.h b/include/linux/extcon.h
89420index 36f49c4..a2a1f4c 100644
89421--- a/include/linux/extcon.h
89422+++ b/include/linux/extcon.h
89423@@ -135,7 +135,7 @@ struct extcon_dev {
89424 /* /sys/class/extcon/.../mutually_exclusive/... */
89425 struct attribute_group attr_g_muex;
89426 struct attribute **attrs_muex;
89427- struct device_attribute *d_attrs_muex;
89428+ device_attribute_no_const *d_attrs_muex;
89429 };
89430
89431 /**
89432diff --git a/include/linux/fb.h b/include/linux/fb.h
89433index 043f328..180ccbf 100644
89434--- a/include/linux/fb.h
89435+++ b/include/linux/fb.h
89436@@ -305,7 +305,8 @@ struct fb_ops {
89437 /* called at KDB enter and leave time to prepare the console */
89438 int (*fb_debug_enter)(struct fb_info *info);
89439 int (*fb_debug_leave)(struct fb_info *info);
89440-};
89441+} __do_const;
89442+typedef struct fb_ops __no_const fb_ops_no_const;
89443
89444 #ifdef CONFIG_FB_TILEBLITTING
89445 #define FB_TILE_CURSOR_NONE 0
89446diff --git a/include/linux/fdtable.h b/include/linux/fdtable.h
89447index 230f87b..1fd0485 100644
89448--- a/include/linux/fdtable.h
89449+++ b/include/linux/fdtable.h
89450@@ -100,7 +100,7 @@ struct files_struct *get_files_struct(struct task_struct *);
89451 void put_files_struct(struct files_struct *fs);
89452 void reset_files_struct(struct files_struct *);
89453 int unshare_files(struct files_struct **);
89454-struct files_struct *dup_fd(struct files_struct *, int *);
89455+struct files_struct *dup_fd(struct files_struct *, int *) __latent_entropy;
89456 void do_close_on_exec(struct files_struct *);
89457 int iterate_fd(struct files_struct *, unsigned,
89458 int (*)(const void *, struct file *, unsigned),
89459diff --git a/include/linux/frontswap.h b/include/linux/frontswap.h
89460index 8293262..2b3b8bd 100644
89461--- a/include/linux/frontswap.h
89462+++ b/include/linux/frontswap.h
89463@@ -11,7 +11,7 @@ struct frontswap_ops {
89464 int (*load)(unsigned, pgoff_t, struct page *);
89465 void (*invalidate_page)(unsigned, pgoff_t);
89466 void (*invalidate_area)(unsigned);
89467-};
89468+} __no_const;
89469
89470 extern bool frontswap_enabled;
89471 extern struct frontswap_ops *
89472diff --git a/include/linux/fs.h b/include/linux/fs.h
89473index 52cc449..31f35cb 100644
89474--- a/include/linux/fs.h
89475+++ b/include/linux/fs.h
89476@@ -410,7 +410,7 @@ struct address_space {
89477 spinlock_t private_lock; /* for use by the address_space */
89478 struct list_head private_list; /* ditto */
89479 void *private_data; /* ditto */
89480-} __attribute__((aligned(sizeof(long))));
89481+} __attribute__((aligned(sizeof(long)))) __randomize_layout;
89482 /*
89483 * On most architectures that alignment is already the case; but
89484 * must be enforced here for CRIS, to let the least significant bit
89485@@ -453,7 +453,7 @@ struct block_device {
89486 int bd_fsfreeze_count;
89487 /* Mutex for freeze */
89488 struct mutex bd_fsfreeze_mutex;
89489-};
89490+} __randomize_layout;
89491
89492 /*
89493 * Radix-tree tags, for tagging dirty and writeback pages within the pagecache
89494@@ -639,7 +639,7 @@ struct inode {
89495 #endif
89496
89497 void *i_private; /* fs or device private pointer */
89498-};
89499+} __randomize_layout;
89500
89501 static inline int inode_unhashed(struct inode *inode)
89502 {
89503@@ -834,7 +834,7 @@ struct file {
89504 struct list_head f_tfile_llink;
89505 #endif /* #ifdef CONFIG_EPOLL */
89506 struct address_space *f_mapping;
89507-} __attribute__((aligned(4))); /* lest something weird decides that 2 is OK */
89508+} __attribute__((aligned(4))) __randomize_layout; /* lest something weird decides that 2 is OK */
89509
89510 struct file_handle {
89511 __u32 handle_bytes;
89512@@ -962,7 +962,7 @@ struct file_lock {
89513 int state; /* state of grant or error if -ve */
89514 } afs;
89515 } fl_u;
89516-};
89517+} __randomize_layout;
89518
89519 struct file_lock_context {
89520 spinlock_t flc_lock;
89521@@ -1316,7 +1316,7 @@ struct super_block {
89522 * Indicates how deep in a filesystem stack this SB is
89523 */
89524 int s_stack_depth;
89525-};
89526+} __randomize_layout;
89527
89528 extern struct timespec current_fs_time(struct super_block *sb);
89529
89530@@ -1570,7 +1570,8 @@ struct file_operations {
89531 #ifndef CONFIG_MMU
89532 unsigned (*mmap_capabilities)(struct file *);
89533 #endif
89534-};
89535+} __do_const __randomize_layout;
89536+typedef struct file_operations __no_const file_operations_no_const;
89537
89538 struct inode_operations {
89539 struct dentry * (*lookup) (struct inode *,struct dentry *, unsigned int);
89540@@ -2269,7 +2270,7 @@ extern int register_chrdev_region(dev_t, unsigned, const char *);
89541 extern int __register_chrdev(unsigned int major, unsigned int baseminor,
89542 unsigned int count, const char *name,
89543 const struct file_operations *fops);
89544-extern void __unregister_chrdev(unsigned int major, unsigned int baseminor,
89545+extern __nocapture(4) void __unregister_chrdev(unsigned int major, unsigned int baseminor,
89546 unsigned int count, const char *name);
89547 extern void unregister_chrdev_region(dev_t, unsigned);
89548 extern void chrdev_show(struct seq_file *,off_t);
89549@@ -2918,4 +2919,14 @@ static inline bool dir_relax(struct inode *inode)
89550 return !IS_DEADDIR(inode);
89551 }
89552
89553+static inline bool is_sidechannel_device(const struct inode *inode)
89554+{
89555+#ifdef CONFIG_GRKERNSEC_DEVICE_SIDECHANNEL
89556+ umode_t mode = inode->i_mode;
89557+ return ((S_ISCHR(mode) || S_ISBLK(mode)) && (mode & (S_IROTH | S_IWOTH)));
89558+#else
89559+ return false;
89560+#endif
89561+}
89562+
89563 #endif /* _LINUX_FS_H */
89564diff --git a/include/linux/fs_struct.h b/include/linux/fs_struct.h
89565index 0efc3e6..fd23610 100644
89566--- a/include/linux/fs_struct.h
89567+++ b/include/linux/fs_struct.h
89568@@ -6,13 +6,13 @@
89569 #include <linux/seqlock.h>
89570
89571 struct fs_struct {
89572- int users;
89573+ atomic_t users;
89574 spinlock_t lock;
89575 seqcount_t seq;
89576 int umask;
89577 int in_exec;
89578 struct path root, pwd;
89579-};
89580+} __randomize_layout;
89581
89582 extern struct kmem_cache *fs_cachep;
89583
89584diff --git a/include/linux/fscache-cache.h b/include/linux/fscache-cache.h
89585index 7714849..a4a5c7a 100644
89586--- a/include/linux/fscache-cache.h
89587+++ b/include/linux/fscache-cache.h
89588@@ -113,7 +113,7 @@ struct fscache_operation {
89589 fscache_operation_release_t release;
89590 };
89591
89592-extern atomic_t fscache_op_debug_id;
89593+extern atomic_unchecked_t fscache_op_debug_id;
89594 extern void fscache_op_work_func(struct work_struct *work);
89595
89596 extern void fscache_enqueue_operation(struct fscache_operation *);
89597@@ -135,7 +135,7 @@ static inline void fscache_operation_init(struct fscache_operation *op,
89598 INIT_WORK(&op->work, fscache_op_work_func);
89599 atomic_set(&op->usage, 1);
89600 op->state = FSCACHE_OP_ST_INITIALISED;
89601- op->debug_id = atomic_inc_return(&fscache_op_debug_id);
89602+ op->debug_id = atomic_inc_return_unchecked(&fscache_op_debug_id);
89603 op->processor = processor;
89604 op->release = release;
89605 INIT_LIST_HEAD(&op->pend_link);
89606diff --git a/include/linux/fscache.h b/include/linux/fscache.h
89607index 115bb81..e7b812b 100644
89608--- a/include/linux/fscache.h
89609+++ b/include/linux/fscache.h
89610@@ -152,7 +152,7 @@ struct fscache_cookie_def {
89611 * - this is mandatory for any object that may have data
89612 */
89613 void (*now_uncached)(void *cookie_netfs_data);
89614-};
89615+} __do_const;
89616
89617 /*
89618 * fscache cached network filesystem type
89619diff --git a/include/linux/fsnotify.h b/include/linux/fsnotify.h
89620index 7ee1774..72505b8 100644
89621--- a/include/linux/fsnotify.h
89622+++ b/include/linux/fsnotify.h
89623@@ -197,6 +197,9 @@ static inline void fsnotify_access(struct file *file)
89624 struct inode *inode = file_inode(file);
89625 __u32 mask = FS_ACCESS;
89626
89627+ if (is_sidechannel_device(inode))
89628+ return;
89629+
89630 if (S_ISDIR(inode->i_mode))
89631 mask |= FS_ISDIR;
89632
89633@@ -215,6 +218,9 @@ static inline void fsnotify_modify(struct file *file)
89634 struct inode *inode = file_inode(file);
89635 __u32 mask = FS_MODIFY;
89636
89637+ if (is_sidechannel_device(inode))
89638+ return;
89639+
89640 if (S_ISDIR(inode->i_mode))
89641 mask |= FS_ISDIR;
89642
89643@@ -317,7 +323,7 @@ static inline void fsnotify_change(struct dentry *dentry, unsigned int ia_valid)
89644 */
89645 static inline const unsigned char *fsnotify_oldname_init(const unsigned char *name)
89646 {
89647- return kstrdup(name, GFP_KERNEL);
89648+ return (const unsigned char *)kstrdup((const char *)name, GFP_KERNEL);
89649 }
89650
89651 /*
89652diff --git a/include/linux/genhd.h b/include/linux/genhd.h
89653index ec274e0..e678159 100644
89654--- a/include/linux/genhd.h
89655+++ b/include/linux/genhd.h
89656@@ -194,7 +194,7 @@ struct gendisk {
89657 struct kobject *slave_dir;
89658
89659 struct timer_rand_state *random;
89660- atomic_t sync_io; /* RAID */
89661+ atomic_unchecked_t sync_io; /* RAID */
89662 struct disk_events *ev;
89663 #ifdef CONFIG_BLK_DEV_INTEGRITY
89664 struct blk_integrity *integrity;
89665@@ -435,7 +435,7 @@ extern void disk_flush_events(struct gendisk *disk, unsigned int mask);
89666 extern unsigned int disk_clear_events(struct gendisk *disk, unsigned int mask);
89667
89668 /* drivers/char/random.c */
89669-extern void add_disk_randomness(struct gendisk *disk);
89670+extern void add_disk_randomness(struct gendisk *disk) __latent_entropy;
89671 extern void rand_initialize_disk(struct gendisk *disk);
89672
89673 static inline sector_t get_start_sect(struct block_device *bdev)
89674diff --git a/include/linux/genl_magic_func.h b/include/linux/genl_magic_func.h
89675index 667c311..abac2a7 100644
89676--- a/include/linux/genl_magic_func.h
89677+++ b/include/linux/genl_magic_func.h
89678@@ -246,7 +246,7 @@ const char *CONCAT_(GENL_MAGIC_FAMILY, _genl_cmd_to_str)(__u8 cmd)
89679 },
89680
89681 #define ZZZ_genl_ops CONCAT_(GENL_MAGIC_FAMILY, _genl_ops)
89682-static struct genl_ops ZZZ_genl_ops[] __read_mostly = {
89683+static struct genl_ops ZZZ_genl_ops[] = {
89684 #include GENL_MAGIC_INCLUDE_FILE
89685 };
89686
89687diff --git a/include/linux/gfp.h b/include/linux/gfp.h
89688index eb6fafe..9360779 100644
89689--- a/include/linux/gfp.h
89690+++ b/include/linux/gfp.h
89691@@ -35,6 +35,13 @@ struct vm_area_struct;
89692 #define ___GFP_NO_KSWAPD 0x400000u
89693 #define ___GFP_OTHER_NODE 0x800000u
89694 #define ___GFP_WRITE 0x1000000u
89695+
89696+#ifdef CONFIG_PAX_USERCOPY_SLABS
89697+#define ___GFP_USERCOPY 0x2000000u
89698+#else
89699+#define ___GFP_USERCOPY 0
89700+#endif
89701+
89702 /* If the above are modified, __GFP_BITS_SHIFT may need updating */
89703
89704 /*
89705@@ -92,6 +99,7 @@ struct vm_area_struct;
89706 #define __GFP_NO_KSWAPD ((__force gfp_t)___GFP_NO_KSWAPD)
89707 #define __GFP_OTHER_NODE ((__force gfp_t)___GFP_OTHER_NODE) /* On behalf of other node */
89708 #define __GFP_WRITE ((__force gfp_t)___GFP_WRITE) /* Allocator intends to dirty page */
89709+#define __GFP_USERCOPY ((__force gfp_t)___GFP_USERCOPY)/* Allocator intends to copy page to/from userland */
89710
89711 /*
89712 * This may seem redundant, but it's a way of annotating false positives vs.
89713@@ -99,7 +107,7 @@ struct vm_area_struct;
89714 */
89715 #define __GFP_NOTRACK_FALSE_POSITIVE (__GFP_NOTRACK)
89716
89717-#define __GFP_BITS_SHIFT 25 /* Room for N __GFP_FOO bits */
89718+#define __GFP_BITS_SHIFT 26 /* Room for N __GFP_FOO bits */
89719 #define __GFP_BITS_MASK ((__force gfp_t)((1 << __GFP_BITS_SHIFT) - 1))
89720
89721 /* This equals 0, but use constants in case they ever change */
89722@@ -154,6 +162,8 @@ struct vm_area_struct;
89723 /* 4GB DMA on some platforms */
89724 #define GFP_DMA32 __GFP_DMA32
89725
89726+#define GFP_USERCOPY __GFP_USERCOPY
89727+
89728 /* Convert GFP flags to their corresponding migrate type */
89729 static inline int gfpflags_to_migratetype(const gfp_t gfp_flags)
89730 {
89731diff --git a/include/linux/gracl.h b/include/linux/gracl.h
89732new file mode 100644
89733index 0000000..91858e4
89734--- /dev/null
89735+++ b/include/linux/gracl.h
89736@@ -0,0 +1,342 @@
89737+#ifndef GR_ACL_H
89738+#define GR_ACL_H
89739+
89740+#include <linux/grdefs.h>
89741+#include <linux/resource.h>
89742+#include <linux/capability.h>
89743+#include <linux/dcache.h>
89744+#include <asm/resource.h>
89745+
89746+/* Major status information */
89747+
89748+#define GR_VERSION "grsecurity 3.1"
89749+#define GRSECURITY_VERSION 0x3100
89750+
89751+enum {
89752+ GR_SHUTDOWN = 0,
89753+ GR_ENABLE = 1,
89754+ GR_SPROLE = 2,
89755+ GR_OLDRELOAD = 3,
89756+ GR_SEGVMOD = 4,
89757+ GR_STATUS = 5,
89758+ GR_UNSPROLE = 6,
89759+ GR_PASSSET = 7,
89760+ GR_SPROLEPAM = 8,
89761+ GR_RELOAD = 9,
89762+};
89763+
89764+/* Password setup definitions
89765+ * kernel/grhash.c */
89766+enum {
89767+ GR_PW_LEN = 128,
89768+ GR_SALT_LEN = 16,
89769+ GR_SHA_LEN = 32,
89770+};
89771+
89772+enum {
89773+ GR_SPROLE_LEN = 64,
89774+};
89775+
89776+enum {
89777+ GR_NO_GLOB = 0,
89778+ GR_REG_GLOB,
89779+ GR_CREATE_GLOB
89780+};
89781+
89782+#define GR_NLIMITS 32
89783+
89784+/* Begin Data Structures */
89785+
89786+struct sprole_pw {
89787+ unsigned char *rolename;
89788+ unsigned char salt[GR_SALT_LEN];
89789+ unsigned char sum[GR_SHA_LEN]; /* 256-bit SHA hash of the password */
89790+};
89791+
89792+struct name_entry {
89793+ __u32 key;
89794+ u64 inode;
89795+ dev_t device;
89796+ char *name;
89797+ __u16 len;
89798+ __u8 deleted;
89799+ struct name_entry *prev;
89800+ struct name_entry *next;
89801+};
89802+
89803+struct inodev_entry {
89804+ struct name_entry *nentry;
89805+ struct inodev_entry *prev;
89806+ struct inodev_entry *next;
89807+};
89808+
89809+struct acl_role_db {
89810+ struct acl_role_label **r_hash;
89811+ __u32 r_size;
89812+};
89813+
89814+struct inodev_db {
89815+ struct inodev_entry **i_hash;
89816+ __u32 i_size;
89817+};
89818+
89819+struct name_db {
89820+ struct name_entry **n_hash;
89821+ __u32 n_size;
89822+};
89823+
89824+struct crash_uid {
89825+ uid_t uid;
89826+ unsigned long expires;
89827+};
89828+
89829+struct gr_hash_struct {
89830+ void **table;
89831+ void **nametable;
89832+ void *first;
89833+ __u32 table_size;
89834+ __u32 used_size;
89835+ int type;
89836+};
89837+
89838+/* Userspace Grsecurity ACL data structures */
89839+
89840+struct acl_subject_label {
89841+ char *filename;
89842+ u64 inode;
89843+ dev_t device;
89844+ __u32 mode;
89845+ kernel_cap_t cap_mask;
89846+ kernel_cap_t cap_lower;
89847+ kernel_cap_t cap_invert_audit;
89848+
89849+ struct rlimit res[GR_NLIMITS];
89850+ __u32 resmask;
89851+
89852+ __u8 user_trans_type;
89853+ __u8 group_trans_type;
89854+ uid_t *user_transitions;
89855+ gid_t *group_transitions;
89856+ __u16 user_trans_num;
89857+ __u16 group_trans_num;
89858+
89859+ __u32 sock_families[2];
89860+ __u32 ip_proto[8];
89861+ __u32 ip_type;
89862+ struct acl_ip_label **ips;
89863+ __u32 ip_num;
89864+ __u32 inaddr_any_override;
89865+
89866+ __u32 crashes;
89867+ unsigned long expires;
89868+
89869+ struct acl_subject_label *parent_subject;
89870+ struct gr_hash_struct *hash;
89871+ struct acl_subject_label *prev;
89872+ struct acl_subject_label *next;
89873+
89874+ struct acl_object_label **obj_hash;
89875+ __u32 obj_hash_size;
89876+ __u16 pax_flags;
89877+};
89878+
89879+struct role_allowed_ip {
89880+ __u32 addr;
89881+ __u32 netmask;
89882+
89883+ struct role_allowed_ip *prev;
89884+ struct role_allowed_ip *next;
89885+};
89886+
89887+struct role_transition {
89888+ char *rolename;
89889+
89890+ struct role_transition *prev;
89891+ struct role_transition *next;
89892+};
89893+
89894+struct acl_role_label {
89895+ char *rolename;
89896+ uid_t uidgid;
89897+ __u16 roletype;
89898+
89899+ __u16 auth_attempts;
89900+ unsigned long expires;
89901+
89902+ struct acl_subject_label *root_label;
89903+ struct gr_hash_struct *hash;
89904+
89905+ struct acl_role_label *prev;
89906+ struct acl_role_label *next;
89907+
89908+ struct role_transition *transitions;
89909+ struct role_allowed_ip *allowed_ips;
89910+ uid_t *domain_children;
89911+ __u16 domain_child_num;
89912+
89913+ umode_t umask;
89914+
89915+ struct acl_subject_label **subj_hash;
89916+ __u32 subj_hash_size;
89917+};
89918+
89919+struct user_acl_role_db {
89920+ struct acl_role_label **r_table;
89921+ __u32 num_pointers; /* Number of allocations to track */
89922+ __u32 num_roles; /* Number of roles */
89923+ __u32 num_domain_children; /* Number of domain children */
89924+ __u32 num_subjects; /* Number of subjects */
89925+ __u32 num_objects; /* Number of objects */
89926+};
89927+
89928+struct acl_object_label {
89929+ char *filename;
89930+ u64 inode;
89931+ dev_t device;
89932+ __u32 mode;
89933+
89934+ struct acl_subject_label *nested;
89935+ struct acl_object_label *globbed;
89936+
89937+ /* next two structures not used */
89938+
89939+ struct acl_object_label *prev;
89940+ struct acl_object_label *next;
89941+};
89942+
89943+struct acl_ip_label {
89944+ char *iface;
89945+ __u32 addr;
89946+ __u32 netmask;
89947+ __u16 low, high;
89948+ __u8 mode;
89949+ __u32 type;
89950+ __u32 proto[8];
89951+
89952+ /* next two structures not used */
89953+
89954+ struct acl_ip_label *prev;
89955+ struct acl_ip_label *next;
89956+};
89957+
89958+struct gr_arg {
89959+ struct user_acl_role_db role_db;
89960+ unsigned char pw[GR_PW_LEN];
89961+ unsigned char salt[GR_SALT_LEN];
89962+ unsigned char sum[GR_SHA_LEN];
89963+ unsigned char sp_role[GR_SPROLE_LEN];
89964+ struct sprole_pw *sprole_pws;
89965+ dev_t segv_device;
89966+ u64 segv_inode;
89967+ uid_t segv_uid;
89968+ __u16 num_sprole_pws;
89969+ __u16 mode;
89970+};
89971+
89972+struct gr_arg_wrapper {
89973+ struct gr_arg *arg;
89974+ __u32 version;
89975+ __u32 size;
89976+};
89977+
89978+struct subject_map {
89979+ struct acl_subject_label *user;
89980+ struct acl_subject_label *kernel;
89981+ struct subject_map *prev;
89982+ struct subject_map *next;
89983+};
89984+
89985+struct acl_subj_map_db {
89986+ struct subject_map **s_hash;
89987+ __u32 s_size;
89988+};
89989+
89990+struct gr_policy_state {
89991+ struct sprole_pw **acl_special_roles;
89992+ __u16 num_sprole_pws;
89993+ struct acl_role_label *kernel_role;
89994+ struct acl_role_label *role_list;
89995+ struct acl_role_label *default_role;
89996+ struct acl_role_db acl_role_set;
89997+ struct acl_subj_map_db subj_map_set;
89998+ struct name_db name_set;
89999+ struct inodev_db inodev_set;
90000+};
90001+
90002+struct gr_alloc_state {
90003+ unsigned long alloc_stack_next;
90004+ unsigned long alloc_stack_size;
90005+ void **alloc_stack;
90006+};
90007+
90008+struct gr_reload_state {
90009+ struct gr_policy_state oldpolicy;
90010+ struct gr_alloc_state oldalloc;
90011+ struct gr_policy_state newpolicy;
90012+ struct gr_alloc_state newalloc;
90013+ struct gr_policy_state *oldpolicy_ptr;
90014+ struct gr_alloc_state *oldalloc_ptr;
90015+ unsigned char oldmode;
90016+};
90017+
90018+/* End Data Structures Section */
90019+
90020+/* Hash functions generated by empirical testing by Brad Spengler
90021+ Makes good use of the low bits of the inode. Generally 0-1 times
90022+ in loop for successful match. 0-3 for unsuccessful match.
90023+ Shift/add algorithm with modulus of table size and an XOR*/
90024+
90025+static __inline__ unsigned int
90026+gr_rhash(const uid_t uid, const __u16 type, const unsigned int sz)
90027+{
90028+ return ((((uid + type) << (16 + type)) ^ uid) % sz);
90029+}
90030+
90031+ static __inline__ unsigned int
90032+gr_shash(const struct acl_subject_label *userp, const unsigned int sz)
90033+{
90034+ return ((const unsigned long)userp % sz);
90035+}
90036+
90037+static __inline__ unsigned int
90038+gr_fhash(const u64 ino, const dev_t dev, const unsigned int sz)
90039+{
90040+ unsigned int rem;
90041+ div_u64_rem((ino + dev) ^ ((ino << 13) + (ino << 23) + (dev << 9)), sz, &rem);
90042+ return rem;
90043+}
90044+
90045+static __inline__ unsigned int
90046+gr_nhash(const char *name, const __u16 len, const unsigned int sz)
90047+{
90048+ return full_name_hash((const unsigned char *)name, len) % sz;
90049+}
90050+
90051+#define FOR_EACH_SUBJECT_START(role,subj,iter) \
90052+ subj = NULL; \
90053+ iter = 0; \
90054+ while (iter < role->subj_hash_size) { \
90055+ if (subj == NULL) \
90056+ subj = role->subj_hash[iter]; \
90057+ if (subj == NULL) { \
90058+ iter++; \
90059+ continue; \
90060+ }
90061+
90062+#define FOR_EACH_SUBJECT_END(subj,iter) \
90063+ subj = subj->next; \
90064+ if (subj == NULL) \
90065+ iter++; \
90066+ }
90067+
90068+
90069+#define FOR_EACH_NESTED_SUBJECT_START(role,subj) \
90070+ subj = role->hash->first; \
90071+ while (subj != NULL) {
90072+
90073+#define FOR_EACH_NESTED_SUBJECT_END(subj) \
90074+ subj = subj->next; \
90075+ }
90076+
90077+#endif
90078+
90079diff --git a/include/linux/gracl_compat.h b/include/linux/gracl_compat.h
90080new file mode 100644
90081index 0000000..af64092
90082--- /dev/null
90083+++ b/include/linux/gracl_compat.h
90084@@ -0,0 +1,156 @@
90085+#ifndef GR_ACL_COMPAT_H
90086+#define GR_ACL_COMPAT_H
90087+
90088+#include <linux/resource.h>
90089+#include <asm/resource.h>
90090+
90091+struct sprole_pw_compat {
90092+ compat_uptr_t rolename;
90093+ unsigned char salt[GR_SALT_LEN];
90094+ unsigned char sum[GR_SHA_LEN];
90095+};
90096+
90097+struct gr_hash_struct_compat {
90098+ compat_uptr_t table;
90099+ compat_uptr_t nametable;
90100+ compat_uptr_t first;
90101+ __u32 table_size;
90102+ __u32 used_size;
90103+ int type;
90104+};
90105+
90106+struct acl_subject_label_compat {
90107+ compat_uptr_t filename;
90108+ compat_u64 inode;
90109+ __u32 device;
90110+ __u32 mode;
90111+ kernel_cap_t cap_mask;
90112+ kernel_cap_t cap_lower;
90113+ kernel_cap_t cap_invert_audit;
90114+
90115+ struct compat_rlimit res[GR_NLIMITS];
90116+ __u32 resmask;
90117+
90118+ __u8 user_trans_type;
90119+ __u8 group_trans_type;
90120+ compat_uptr_t user_transitions;
90121+ compat_uptr_t group_transitions;
90122+ __u16 user_trans_num;
90123+ __u16 group_trans_num;
90124+
90125+ __u32 sock_families[2];
90126+ __u32 ip_proto[8];
90127+ __u32 ip_type;
90128+ compat_uptr_t ips;
90129+ __u32 ip_num;
90130+ __u32 inaddr_any_override;
90131+
90132+ __u32 crashes;
90133+ compat_ulong_t expires;
90134+
90135+ compat_uptr_t parent_subject;
90136+ compat_uptr_t hash;
90137+ compat_uptr_t prev;
90138+ compat_uptr_t next;
90139+
90140+ compat_uptr_t obj_hash;
90141+ __u32 obj_hash_size;
90142+ __u16 pax_flags;
90143+};
90144+
90145+struct role_allowed_ip_compat {
90146+ __u32 addr;
90147+ __u32 netmask;
90148+
90149+ compat_uptr_t prev;
90150+ compat_uptr_t next;
90151+};
90152+
90153+struct role_transition_compat {
90154+ compat_uptr_t rolename;
90155+
90156+ compat_uptr_t prev;
90157+ compat_uptr_t next;
90158+};
90159+
90160+struct acl_role_label_compat {
90161+ compat_uptr_t rolename;
90162+ uid_t uidgid;
90163+ __u16 roletype;
90164+
90165+ __u16 auth_attempts;
90166+ compat_ulong_t expires;
90167+
90168+ compat_uptr_t root_label;
90169+ compat_uptr_t hash;
90170+
90171+ compat_uptr_t prev;
90172+ compat_uptr_t next;
90173+
90174+ compat_uptr_t transitions;
90175+ compat_uptr_t allowed_ips;
90176+ compat_uptr_t domain_children;
90177+ __u16 domain_child_num;
90178+
90179+ umode_t umask;
90180+
90181+ compat_uptr_t subj_hash;
90182+ __u32 subj_hash_size;
90183+};
90184+
90185+struct user_acl_role_db_compat {
90186+ compat_uptr_t r_table;
90187+ __u32 num_pointers;
90188+ __u32 num_roles;
90189+ __u32 num_domain_children;
90190+ __u32 num_subjects;
90191+ __u32 num_objects;
90192+};
90193+
90194+struct acl_object_label_compat {
90195+ compat_uptr_t filename;
90196+ compat_u64 inode;
90197+ __u32 device;
90198+ __u32 mode;
90199+
90200+ compat_uptr_t nested;
90201+ compat_uptr_t globbed;
90202+
90203+ compat_uptr_t prev;
90204+ compat_uptr_t next;
90205+};
90206+
90207+struct acl_ip_label_compat {
90208+ compat_uptr_t iface;
90209+ __u32 addr;
90210+ __u32 netmask;
90211+ __u16 low, high;
90212+ __u8 mode;
90213+ __u32 type;
90214+ __u32 proto[8];
90215+
90216+ compat_uptr_t prev;
90217+ compat_uptr_t next;
90218+};
90219+
90220+struct gr_arg_compat {
90221+ struct user_acl_role_db_compat role_db;
90222+ unsigned char pw[GR_PW_LEN];
90223+ unsigned char salt[GR_SALT_LEN];
90224+ unsigned char sum[GR_SHA_LEN];
90225+ unsigned char sp_role[GR_SPROLE_LEN];
90226+ compat_uptr_t sprole_pws;
90227+ __u32 segv_device;
90228+ compat_u64 segv_inode;
90229+ uid_t segv_uid;
90230+ __u16 num_sprole_pws;
90231+ __u16 mode;
90232+};
90233+
90234+struct gr_arg_wrapper_compat {
90235+ compat_uptr_t arg;
90236+ __u32 version;
90237+ __u32 size;
90238+};
90239+
90240+#endif
90241diff --git a/include/linux/gralloc.h b/include/linux/gralloc.h
90242new file mode 100644
90243index 0000000..323ecf2
90244--- /dev/null
90245+++ b/include/linux/gralloc.h
90246@@ -0,0 +1,9 @@
90247+#ifndef __GRALLOC_H
90248+#define __GRALLOC_H
90249+
90250+void acl_free_all(void);
90251+int acl_alloc_stack_init(unsigned long size);
90252+void *acl_alloc(unsigned long len);
90253+void *acl_alloc_num(unsigned long num, unsigned long len);
90254+
90255+#endif
90256diff --git a/include/linux/grdefs.h b/include/linux/grdefs.h
90257new file mode 100644
90258index 0000000..be66033
90259--- /dev/null
90260+++ b/include/linux/grdefs.h
90261@@ -0,0 +1,140 @@
90262+#ifndef GRDEFS_H
90263+#define GRDEFS_H
90264+
90265+/* Begin grsecurity status declarations */
90266+
90267+enum {
90268+ GR_READY = 0x01,
90269+ GR_STATUS_INIT = 0x00 // disabled state
90270+};
90271+
90272+/* Begin ACL declarations */
90273+
90274+/* Role flags */
90275+
90276+enum {
90277+ GR_ROLE_USER = 0x0001,
90278+ GR_ROLE_GROUP = 0x0002,
90279+ GR_ROLE_DEFAULT = 0x0004,
90280+ GR_ROLE_SPECIAL = 0x0008,
90281+ GR_ROLE_AUTH = 0x0010,
90282+ GR_ROLE_NOPW = 0x0020,
90283+ GR_ROLE_GOD = 0x0040,
90284+ GR_ROLE_LEARN = 0x0080,
90285+ GR_ROLE_TPE = 0x0100,
90286+ GR_ROLE_DOMAIN = 0x0200,
90287+ GR_ROLE_PAM = 0x0400,
90288+ GR_ROLE_PERSIST = 0x0800
90289+};
90290+
90291+/* ACL Subject and Object mode flags */
90292+enum {
90293+ GR_DELETED = 0x80000000
90294+};
90295+
90296+/* ACL Object-only mode flags */
90297+enum {
90298+ GR_READ = 0x00000001,
90299+ GR_APPEND = 0x00000002,
90300+ GR_WRITE = 0x00000004,
90301+ GR_EXEC = 0x00000008,
90302+ GR_FIND = 0x00000010,
90303+ GR_INHERIT = 0x00000020,
90304+ GR_SETID = 0x00000040,
90305+ GR_CREATE = 0x00000080,
90306+ GR_DELETE = 0x00000100,
90307+ GR_LINK = 0x00000200,
90308+ GR_AUDIT_READ = 0x00000400,
90309+ GR_AUDIT_APPEND = 0x00000800,
90310+ GR_AUDIT_WRITE = 0x00001000,
90311+ GR_AUDIT_EXEC = 0x00002000,
90312+ GR_AUDIT_FIND = 0x00004000,
90313+ GR_AUDIT_INHERIT= 0x00008000,
90314+ GR_AUDIT_SETID = 0x00010000,
90315+ GR_AUDIT_CREATE = 0x00020000,
90316+ GR_AUDIT_DELETE = 0x00040000,
90317+ GR_AUDIT_LINK = 0x00080000,
90318+ GR_PTRACERD = 0x00100000,
90319+ GR_NOPTRACE = 0x00200000,
90320+ GR_SUPPRESS = 0x00400000,
90321+ GR_NOLEARN = 0x00800000,
90322+ GR_INIT_TRANSFER= 0x01000000
90323+};
90324+
90325+#define GR_AUDITS (GR_AUDIT_READ | GR_AUDIT_WRITE | GR_AUDIT_APPEND | GR_AUDIT_EXEC | \
90326+ GR_AUDIT_FIND | GR_AUDIT_INHERIT | GR_AUDIT_SETID | \
90327+ GR_AUDIT_CREATE | GR_AUDIT_DELETE | GR_AUDIT_LINK)
90328+
90329+/* ACL subject-only mode flags */
90330+enum {
90331+ GR_KILL = 0x00000001,
90332+ GR_VIEW = 0x00000002,
90333+ GR_PROTECTED = 0x00000004,
90334+ GR_LEARN = 0x00000008,
90335+ GR_OVERRIDE = 0x00000010,
90336+ /* just a placeholder, this mode is only used in userspace */
90337+ GR_DUMMY = 0x00000020,
90338+ GR_PROTSHM = 0x00000040,
90339+ GR_KILLPROC = 0x00000080,
90340+ GR_KILLIPPROC = 0x00000100,
90341+ /* just a placeholder, this mode is only used in userspace */
90342+ GR_NOTROJAN = 0x00000200,
90343+ GR_PROTPROCFD = 0x00000400,
90344+ GR_PROCACCT = 0x00000800,
90345+ GR_RELAXPTRACE = 0x00001000,
90346+ //GR_NESTED = 0x00002000,
90347+ GR_INHERITLEARN = 0x00004000,
90348+ GR_PROCFIND = 0x00008000,
90349+ GR_POVERRIDE = 0x00010000,
90350+ GR_KERNELAUTH = 0x00020000,
90351+ GR_ATSECURE = 0x00040000,
90352+ GR_SHMEXEC = 0x00080000
90353+};
90354+
90355+enum {
90356+ GR_PAX_ENABLE_SEGMEXEC = 0x0001,
90357+ GR_PAX_ENABLE_PAGEEXEC = 0x0002,
90358+ GR_PAX_ENABLE_MPROTECT = 0x0004,
90359+ GR_PAX_ENABLE_RANDMMAP = 0x0008,
90360+ GR_PAX_ENABLE_EMUTRAMP = 0x0010,
90361+ GR_PAX_DISABLE_SEGMEXEC = 0x0100,
90362+ GR_PAX_DISABLE_PAGEEXEC = 0x0200,
90363+ GR_PAX_DISABLE_MPROTECT = 0x0400,
90364+ GR_PAX_DISABLE_RANDMMAP = 0x0800,
90365+ GR_PAX_DISABLE_EMUTRAMP = 0x1000,
90366+};
90367+
90368+enum {
90369+ GR_ID_USER = 0x01,
90370+ GR_ID_GROUP = 0x02,
90371+};
90372+
90373+enum {
90374+ GR_ID_ALLOW = 0x01,
90375+ GR_ID_DENY = 0x02,
90376+};
90377+
90378+#define GR_CRASH_RES 31
90379+#define GR_UIDTABLE_MAX 500
90380+
90381+/* begin resource learning section */
90382+enum {
90383+ GR_RLIM_CPU_BUMP = 60,
90384+ GR_RLIM_FSIZE_BUMP = 50000,
90385+ GR_RLIM_DATA_BUMP = 10000,
90386+ GR_RLIM_STACK_BUMP = 1000,
90387+ GR_RLIM_CORE_BUMP = 10000,
90388+ GR_RLIM_RSS_BUMP = 500000,
90389+ GR_RLIM_NPROC_BUMP = 1,
90390+ GR_RLIM_NOFILE_BUMP = 5,
90391+ GR_RLIM_MEMLOCK_BUMP = 50000,
90392+ GR_RLIM_AS_BUMP = 500000,
90393+ GR_RLIM_LOCKS_BUMP = 2,
90394+ GR_RLIM_SIGPENDING_BUMP = 5,
90395+ GR_RLIM_MSGQUEUE_BUMP = 10000,
90396+ GR_RLIM_NICE_BUMP = 1,
90397+ GR_RLIM_RTPRIO_BUMP = 1,
90398+ GR_RLIM_RTTIME_BUMP = 1000000
90399+};
90400+
90401+#endif
90402diff --git a/include/linux/grinternal.h b/include/linux/grinternal.h
90403new file mode 100644
90404index 0000000..fb1de5d
90405--- /dev/null
90406+++ b/include/linux/grinternal.h
90407@@ -0,0 +1,230 @@
90408+#ifndef __GRINTERNAL_H
90409+#define __GRINTERNAL_H
90410+
90411+#ifdef CONFIG_GRKERNSEC
90412+
90413+#include <linux/fs.h>
90414+#include <linux/mnt_namespace.h>
90415+#include <linux/nsproxy.h>
90416+#include <linux/gracl.h>
90417+#include <linux/grdefs.h>
90418+#include <linux/grmsg.h>
90419+
90420+void gr_add_learn_entry(const char *fmt, ...)
90421+ __attribute__ ((format (printf, 1, 2)));
90422+__u32 gr_search_file(const struct dentry *dentry, const __u32 mode,
90423+ const struct vfsmount *mnt);
90424+__u32 gr_check_create(const struct dentry *new_dentry,
90425+ const struct dentry *parent,
90426+ const struct vfsmount *mnt, const __u32 mode);
90427+int gr_check_protected_task(const struct task_struct *task);
90428+__u32 to_gr_audit(const __u32 reqmode);
90429+int gr_set_acls(const int type);
90430+int gr_acl_is_enabled(void);
90431+char gr_roletype_to_char(void);
90432+
90433+void gr_handle_alertkill(struct task_struct *task);
90434+char *gr_to_filename(const struct dentry *dentry,
90435+ const struct vfsmount *mnt);
90436+char *gr_to_filename1(const struct dentry *dentry,
90437+ const struct vfsmount *mnt);
90438+char *gr_to_filename2(const struct dentry *dentry,
90439+ const struct vfsmount *mnt);
90440+char *gr_to_filename3(const struct dentry *dentry,
90441+ const struct vfsmount *mnt);
90442+
90443+extern int grsec_enable_ptrace_readexec;
90444+extern int grsec_enable_harden_ptrace;
90445+extern int grsec_enable_link;
90446+extern int grsec_enable_fifo;
90447+extern int grsec_enable_execve;
90448+extern int grsec_enable_shm;
90449+extern int grsec_enable_execlog;
90450+extern int grsec_enable_signal;
90451+extern int grsec_enable_audit_ptrace;
90452+extern int grsec_enable_forkfail;
90453+extern int grsec_enable_time;
90454+extern int grsec_enable_rofs;
90455+extern int grsec_deny_new_usb;
90456+extern int grsec_enable_chroot_shmat;
90457+extern int grsec_enable_chroot_mount;
90458+extern int grsec_enable_chroot_double;
90459+extern int grsec_enable_chroot_pivot;
90460+extern int grsec_enable_chroot_chdir;
90461+extern int grsec_enable_chroot_chmod;
90462+extern int grsec_enable_chroot_mknod;
90463+extern int grsec_enable_chroot_fchdir;
90464+extern int grsec_enable_chroot_nice;
90465+extern int grsec_enable_chroot_execlog;
90466+extern int grsec_enable_chroot_caps;
90467+extern int grsec_enable_chroot_rename;
90468+extern int grsec_enable_chroot_sysctl;
90469+extern int grsec_enable_chroot_unix;
90470+extern int grsec_enable_symlinkown;
90471+extern kgid_t grsec_symlinkown_gid;
90472+extern int grsec_enable_tpe;
90473+extern kgid_t grsec_tpe_gid;
90474+extern int grsec_enable_tpe_all;
90475+extern int grsec_enable_tpe_invert;
90476+extern int grsec_enable_socket_all;
90477+extern kgid_t grsec_socket_all_gid;
90478+extern int grsec_enable_socket_client;
90479+extern kgid_t grsec_socket_client_gid;
90480+extern int grsec_enable_socket_server;
90481+extern kgid_t grsec_socket_server_gid;
90482+extern kgid_t grsec_audit_gid;
90483+extern int grsec_enable_group;
90484+extern int grsec_enable_log_rwxmaps;
90485+extern int grsec_enable_mount;
90486+extern int grsec_enable_chdir;
90487+extern int grsec_resource_logging;
90488+extern int grsec_enable_blackhole;
90489+extern int grsec_lastack_retries;
90490+extern int grsec_enable_brute;
90491+extern int grsec_enable_harden_ipc;
90492+extern int grsec_lock;
90493+
90494+extern spinlock_t grsec_alert_lock;
90495+extern unsigned long grsec_alert_wtime;
90496+extern unsigned long grsec_alert_fyet;
90497+
90498+extern spinlock_t grsec_audit_lock;
90499+
90500+extern rwlock_t grsec_exec_file_lock;
90501+
90502+#define gr_task_fullpath(tsk) ((tsk)->exec_file ? \
90503+ gr_to_filename2((tsk)->exec_file->f_path.dentry, \
90504+ (tsk)->exec_file->f_path.mnt) : "/")
90505+
90506+#define gr_parent_task_fullpath(tsk) ((tsk)->real_parent->exec_file ? \
90507+ gr_to_filename3((tsk)->real_parent->exec_file->f_path.dentry, \
90508+ (tsk)->real_parent->exec_file->f_path.mnt) : "/")
90509+
90510+#define gr_task_fullpath0(tsk) ((tsk)->exec_file ? \
90511+ gr_to_filename((tsk)->exec_file->f_path.dentry, \
90512+ (tsk)->exec_file->f_path.mnt) : "/")
90513+
90514+#define gr_parent_task_fullpath0(tsk) ((tsk)->real_parent->exec_file ? \
90515+ gr_to_filename1((tsk)->real_parent->exec_file->f_path.dentry, \
90516+ (tsk)->real_parent->exec_file->f_path.mnt) : "/")
90517+
90518+#define proc_is_chrooted(tsk_a) ((tsk_a)->gr_is_chrooted)
90519+
90520+#define have_same_root(tsk_a,tsk_b) ((tsk_a)->gr_chroot_dentry == (tsk_b)->gr_chroot_dentry)
90521+
90522+static inline bool gr_is_same_file(const struct file *file1, const struct file *file2)
90523+{
90524+ if (file1 && file2) {
90525+ const struct inode *inode1 = file1->f_path.dentry->d_inode;
90526+ const struct inode *inode2 = file2->f_path.dentry->d_inode;
90527+ if (inode1->i_ino == inode2->i_ino && inode1->i_sb->s_dev == inode2->i_sb->s_dev)
90528+ return true;
90529+ }
90530+
90531+ return false;
90532+}
90533+
90534+#define GR_CHROOT_CAPS {{ \
90535+ CAP_TO_MASK(CAP_LINUX_IMMUTABLE) | CAP_TO_MASK(CAP_NET_ADMIN) | \
90536+ CAP_TO_MASK(CAP_SYS_MODULE) | CAP_TO_MASK(CAP_SYS_RAWIO) | \
90537+ CAP_TO_MASK(CAP_SYS_PACCT) | CAP_TO_MASK(CAP_SYS_ADMIN) | \
90538+ CAP_TO_MASK(CAP_SYS_BOOT) | CAP_TO_MASK(CAP_SYS_TIME) | \
90539+ CAP_TO_MASK(CAP_NET_RAW) | CAP_TO_MASK(CAP_SYS_TTY_CONFIG) | \
90540+ CAP_TO_MASK(CAP_IPC_OWNER) | CAP_TO_MASK(CAP_SETFCAP), \
90541+ CAP_TO_MASK(CAP_SYSLOG) | CAP_TO_MASK(CAP_MAC_ADMIN) }}
90542+
90543+#define security_learn(normal_msg,args...) \
90544+({ \
90545+ read_lock(&grsec_exec_file_lock); \
90546+ gr_add_learn_entry(normal_msg "\n", ## args); \
90547+ read_unlock(&grsec_exec_file_lock); \
90548+})
90549+
90550+enum {
90551+ GR_DO_AUDIT,
90552+ GR_DONT_AUDIT,
90553+ /* used for non-audit messages that we shouldn't kill the task on */
90554+ GR_DONT_AUDIT_GOOD
90555+};
90556+
90557+enum {
90558+ GR_TTYSNIFF,
90559+ GR_RBAC,
90560+ GR_RBAC_STR,
90561+ GR_STR_RBAC,
90562+ GR_RBAC_MODE2,
90563+ GR_RBAC_MODE3,
90564+ GR_FILENAME,
90565+ GR_SYSCTL_HIDDEN,
90566+ GR_NOARGS,
90567+ GR_ONE_INT,
90568+ GR_ONE_INT_TWO_STR,
90569+ GR_ONE_STR,
90570+ GR_STR_INT,
90571+ GR_TWO_STR_INT,
90572+ GR_TWO_INT,
90573+ GR_TWO_U64,
90574+ GR_THREE_INT,
90575+ GR_FIVE_INT_TWO_STR,
90576+ GR_TWO_STR,
90577+ GR_THREE_STR,
90578+ GR_FOUR_STR,
90579+ GR_STR_FILENAME,
90580+ GR_FILENAME_STR,
90581+ GR_FILENAME_TWO_INT,
90582+ GR_FILENAME_TWO_INT_STR,
90583+ GR_TEXTREL,
90584+ GR_PTRACE,
90585+ GR_RESOURCE,
90586+ GR_CAP,
90587+ GR_SIG,
90588+ GR_SIG2,
90589+ GR_CRASH1,
90590+ GR_CRASH2,
90591+ GR_PSACCT,
90592+ GR_RWXMAP,
90593+ GR_RWXMAPVMA
90594+};
90595+
90596+#define gr_log_hidden_sysctl(audit, msg, str) gr_log_varargs(audit, msg, GR_SYSCTL_HIDDEN, str)
90597+#define gr_log_ttysniff(audit, msg, task) gr_log_varargs(audit, msg, GR_TTYSNIFF, task)
90598+#define gr_log_fs_rbac_generic(audit, msg, dentry, mnt) gr_log_varargs(audit, msg, GR_RBAC, dentry, mnt)
90599+#define gr_log_fs_rbac_str(audit, msg, dentry, mnt, str) gr_log_varargs(audit, msg, GR_RBAC_STR, dentry, mnt, str)
90600+#define gr_log_fs_str_rbac(audit, msg, str, dentry, mnt) gr_log_varargs(audit, msg, GR_STR_RBAC, str, dentry, mnt)
90601+#define gr_log_fs_rbac_mode2(audit, msg, dentry, mnt, str1, str2) gr_log_varargs(audit, msg, GR_RBAC_MODE2, dentry, mnt, str1, str2)
90602+#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)
90603+#define gr_log_fs_generic(audit, msg, dentry, mnt) gr_log_varargs(audit, msg, GR_FILENAME, dentry, mnt)
90604+#define gr_log_noargs(audit, msg) gr_log_varargs(audit, msg, GR_NOARGS)
90605+#define gr_log_int(audit, msg, num) gr_log_varargs(audit, msg, GR_ONE_INT, num)
90606+#define gr_log_int_str2(audit, msg, num, str1, str2) gr_log_varargs(audit, msg, GR_ONE_INT_TWO_STR, num, str1, str2)
90607+#define gr_log_str(audit, msg, str) gr_log_varargs(audit, msg, GR_ONE_STR, str)
90608+#define gr_log_str_int(audit, msg, str, num) gr_log_varargs(audit, msg, GR_STR_INT, str, num)
90609+#define gr_log_int_int(audit, msg, num1, num2) gr_log_varargs(audit, msg, GR_TWO_INT, num1, num2)
90610+#define gr_log_two_u64(audit, msg, num1, num2) gr_log_varargs(audit, msg, GR_TWO_U64, num1, num2)
90611+#define gr_log_int3(audit, msg, num1, num2, num3) gr_log_varargs(audit, msg, GR_THREE_INT, num1, num2, num3)
90612+#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)
90613+#define gr_log_str_str(audit, msg, str1, str2) gr_log_varargs(audit, msg, GR_TWO_STR, str1, str2)
90614+#define gr_log_str2_int(audit, msg, str1, str2, num) gr_log_varargs(audit, msg, GR_TWO_STR_INT, str1, str2, num)
90615+#define gr_log_str3(audit, msg, str1, str2, str3) gr_log_varargs(audit, msg, GR_THREE_STR, str1, str2, str3)
90616+#define gr_log_str4(audit, msg, str1, str2, str3, str4) gr_log_varargs(audit, msg, GR_FOUR_STR, str1, str2, str3, str4)
90617+#define gr_log_str_fs(audit, msg, str, dentry, mnt) gr_log_varargs(audit, msg, GR_STR_FILENAME, str, dentry, mnt)
90618+#define gr_log_fs_str(audit, msg, dentry, mnt, str) gr_log_varargs(audit, msg, GR_FILENAME_STR, dentry, mnt, str)
90619+#define gr_log_fs_int2(audit, msg, dentry, mnt, num1, num2) gr_log_varargs(audit, msg, GR_FILENAME_TWO_INT, dentry, mnt, num1, num2)
90620+#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)
90621+#define gr_log_textrel_ulong_ulong(audit, msg, file, ulong1, ulong2) gr_log_varargs(audit, msg, GR_TEXTREL, file, ulong1, ulong2)
90622+#define gr_log_ptrace(audit, msg, task) gr_log_varargs(audit, msg, GR_PTRACE, task)
90623+#define gr_log_res_ulong2_str(audit, msg, task, ulong1, str, ulong2) gr_log_varargs(audit, msg, GR_RESOURCE, task, ulong1, str, ulong2)
90624+#define gr_log_cap(audit, msg, task, str) gr_log_varargs(audit, msg, GR_CAP, task, str)
90625+#define gr_log_sig_addr(audit, msg, str, addr) gr_log_varargs(audit, msg, GR_SIG, str, addr)
90626+#define gr_log_sig_task(audit, msg, task, num) gr_log_varargs(audit, msg, GR_SIG2, task, num)
90627+#define gr_log_crash1(audit, msg, task, ulong) gr_log_varargs(audit, msg, GR_CRASH1, task, ulong)
90628+#define gr_log_crash2(audit, msg, task, ulong1) gr_log_varargs(audit, msg, GR_CRASH2, task, ulong1)
90629+#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)
90630+#define gr_log_rwxmap(audit, msg, str) gr_log_varargs(audit, msg, GR_RWXMAP, str)
90631+#define gr_log_rwxmap_vma(audit, msg, str) gr_log_varargs(audit, msg, GR_RWXMAPVMA, str)
90632+
90633+void gr_log_varargs(int audit, const char *msg, int argtypes, ...);
90634+
90635+#endif
90636+
90637+#endif
90638diff --git a/include/linux/grmsg.h b/include/linux/grmsg.h
90639new file mode 100644
90640index 0000000..26ef560
90641--- /dev/null
90642+++ b/include/linux/grmsg.h
90643@@ -0,0 +1,118 @@
90644+#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"
90645+#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"
90646+#define GR_PTRACE_ACL_MSG "denied ptrace of %.950s(%.16s:%d) by "
90647+#define GR_STOPMOD_MSG "denied modification of module state by "
90648+#define GR_ROFS_BLOCKWRITE_MSG "denied write to block device %.950s by "
90649+#define GR_ROFS_MOUNT_MSG "denied writable mount of %.950s by "
90650+#define GR_IOPERM_MSG "denied use of ioperm() by "
90651+#define GR_IOPL_MSG "denied use of iopl() by "
90652+#define GR_SHMAT_ACL_MSG "denied attach of shared memory of UID %u, PID %d, ID %u by "
90653+#define GR_UNIX_CHROOT_MSG "denied connect() to abstract AF_UNIX socket outside of chroot by "
90654+#define GR_SHMAT_CHROOT_MSG "denied attach of shared memory outside of chroot by "
90655+#define GR_MEM_READWRITE_MSG "denied access of range %Lx -> %Lx in /dev/mem by "
90656+#define GR_SYMLINK_MSG "not following symlink %.950s owned by %d.%d by "
90657+#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"
90658+#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"
90659+#define GR_HIDDEN_ACL_MSG "%s access to hidden file %.950s by "
90660+#define GR_OPEN_ACL_MSG "%s open of %.950s for%s%s by "
90661+#define GR_CREATE_ACL_MSG "%s create of %.950s for%s%s by "
90662+#define GR_FIFO_MSG "denied writing FIFO %.950s of %d.%d by "
90663+#define GR_MKNOD_CHROOT_MSG "denied mknod of %.950s from chroot by "
90664+#define GR_MKNOD_ACL_MSG "%s mknod of %.950s by "
90665+#define GR_UNIXCONNECT_ACL_MSG "%s connect() to the unix domain socket %.950s by "
90666+#define GR_TTYSNIFF_ACL_MSG "terminal being sniffed by IP:%pI4 %.480s[%.16s:%d], parent %.480s[%.16s:%d] against "
90667+#define GR_MKDIR_ACL_MSG "%s mkdir of %.950s by "
90668+#define GR_RMDIR_ACL_MSG "%s rmdir of %.950s by "
90669+#define GR_UNLINK_ACL_MSG "%s unlink of %.950s by "
90670+#define GR_SYMLINK_ACL_MSG "%s symlink from %.480s to %.480s by "
90671+#define GR_HARDLINK_MSG "denied hardlink of %.930s (owned by %d.%d) to %.30s for "
90672+#define GR_LINK_ACL_MSG "%s link of %.480s to %.480s by "
90673+#define GR_INHERIT_ACL_MSG "successful inherit of %.480s's ACL for %.480s by "
90674+#define GR_RENAME_ACL_MSG "%s rename of %.480s to %.480s by "
90675+#define GR_UNSAFESHARE_EXEC_ACL_MSG "denied exec with cloned fs of %.950s by "
90676+#define GR_PTRACE_EXEC_ACL_MSG "denied ptrace of %.950s by "
90677+#define GR_EXEC_ACL_MSG "%s execution of %.950s by "
90678+#define GR_EXEC_TPE_MSG "denied untrusted exec (due to %.70s) of %.950s by "
90679+#define GR_SEGVSTART_ACL_MSG "possible exploit bruteforcing on " DEFAULTSECMSG " banning uid %u from login for %lu seconds"
90680+#define GR_SEGVNOSUID_ACL_MSG "possible exploit bruteforcing on " DEFAULTSECMSG " banning execution for %lu seconds"
90681+#define GR_MOUNT_CHROOT_MSG "denied mount of %.256s as %.930s from chroot by "
90682+#define GR_PIVOT_CHROOT_MSG "denied pivot_root from chroot by "
90683+#define GR_TRUNCATE_ACL_MSG "%s truncate of %.950s by "
90684+#define GR_ATIME_ACL_MSG "%s access time change of %.950s by "
90685+#define GR_ACCESS_ACL_MSG "%s access of %.950s for%s%s%s by "
90686+#define GR_CHROOT_CHROOT_MSG "denied double chroot to %.950s by "
90687+#define GR_CHROOT_RENAME_MSG "denied bad rename of %.950s out of a chroot by "
90688+#define GR_CHMOD_CHROOT_MSG "denied chmod +s of %.950s by "
90689+#define GR_CHMOD_ACL_MSG "%s chmod of %.950s by "
90690+#define GR_CHROOT_FCHDIR_MSG "denied fchdir outside of chroot to %.950s by "
90691+#define GR_CHROOT_FHANDLE_MSG "denied use of file handles inside chroot by "
90692+#define GR_CHOWN_ACL_MSG "%s chown of %.950s by "
90693+#define GR_SETXATTR_ACL_MSG "%s setting extended attribute of %.950s by "
90694+#define GR_REMOVEXATTR_ACL_MSG "%s removing extended attribute of %.950s by "
90695+#define GR_WRITLIB_ACL_MSG "denied load of writable library %.950s by "
90696+#define GR_INITF_ACL_MSG "init_variables() failed %s by "
90697+#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"
90698+#define GR_DEV_ACL_MSG "/dev/grsec: %d bytes sent %d required, being fed garbage by "
90699+#define GR_SHUTS_ACL_MSG "shutdown auth success for "
90700+#define GR_SHUTF_ACL_MSG "shutdown auth failure for "
90701+#define GR_SHUTI_ACL_MSG "ignoring shutdown for disabled RBAC system for "
90702+#define GR_SEGVMODS_ACL_MSG "segvmod auth success for "
90703+#define GR_SEGVMODF_ACL_MSG "segvmod auth failure for "
90704+#define GR_SEGVMODI_ACL_MSG "ignoring segvmod for disabled RBAC system for "
90705+#define GR_ENABLE_ACL_MSG "%s RBAC system loaded by "
90706+#define GR_ENABLEF_ACL_MSG "unable to load %s for "
90707+#define GR_RELOADI_ACL_MSG "ignoring reload request for disabled RBAC system"
90708+#define GR_RELOAD_ACL_MSG "%s RBAC system reloaded by "
90709+#define GR_RELOADF_ACL_MSG "failed reload of %s for "
90710+#define GR_SPROLEI_ACL_MSG "ignoring change to special role for disabled RBAC system for "
90711+#define GR_SPROLES_ACL_MSG "successful change to special role %s (id %d) by "
90712+#define GR_SPROLEL_ACL_MSG "special role %s (id %d) exited by "
90713+#define GR_SPROLEF_ACL_MSG "special role %s failure for "
90714+#define GR_UNSPROLEI_ACL_MSG "ignoring unauth of special role for disabled RBAC system for "
90715+#define GR_UNSPROLES_ACL_MSG "successful unauth of special role %s (id %d) by "
90716+#define GR_INVMODE_ACL_MSG "invalid mode %d by "
90717+#define GR_PRIORITY_CHROOT_MSG "denied priority change of process (%.16s:%d) by "
90718+#define GR_FAILFORK_MSG "failed fork with errno %s by "
90719+#define GR_NICE_CHROOT_MSG "denied priority change by "
90720+#define GR_UNISIGLOG_MSG "%.32s occurred at %p in "
90721+#define GR_DUALSIGLOG_MSG "signal %d sent to " DEFAULTSECMSG " by "
90722+#define GR_SIG_ACL_MSG "denied send of signal %d to protected task " DEFAULTSECMSG " by "
90723+#define GR_SYSCTL_MSG "denied modification of grsecurity sysctl value : %.32s by "
90724+#define GR_SYSCTL_ACL_MSG "%s sysctl of %.950s for%s%s by "
90725+#define GR_TIME_MSG "time set by "
90726+#define GR_DEFACL_MSG "fatal: unable to find subject for (%.16s:%d), loaded by "
90727+#define GR_MMAP_ACL_MSG "%s executable mmap of %.950s by "
90728+#define GR_MPROTECT_ACL_MSG "%s executable mprotect of %.950s by "
90729+#define GR_SOCK_MSG "denied socket(%.16s,%.16s,%.16s) by "
90730+#define GR_SOCK_NOINET_MSG "denied socket(%.16s,%.16s,%d) by "
90731+#define GR_BIND_MSG "denied bind() by "
90732+#define GR_CONNECT_MSG "denied connect() by "
90733+#define GR_BIND_ACL_MSG "denied bind() to %pI4 port %u sock type %.16s protocol %.16s by "
90734+#define GR_CONNECT_ACL_MSG "denied connect() to %pI4 port %u sock type %.16s protocol %.16s by "
90735+#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"
90736+#define GR_EXEC_CHROOT_MSG "exec of %.980s within chroot by process "
90737+#define GR_CAP_ACL_MSG "use of %s denied for "
90738+#define GR_CAP_CHROOT_MSG "use of %s in chroot denied for "
90739+#define GR_CAP_ACL_MSG2 "use of %s permitted for "
90740+#define GR_USRCHANGE_ACL_MSG "change to uid %u denied for "
90741+#define GR_GRPCHANGE_ACL_MSG "change to gid %u denied for "
90742+#define GR_REMOUNT_AUDIT_MSG "remount of %.256s by "
90743+#define GR_UNMOUNT_AUDIT_MSG "unmount of %.256s by "
90744+#define GR_MOUNT_AUDIT_MSG "mount of %.256s to %.256s by "
90745+#define GR_CHDIR_AUDIT_MSG "chdir to %.980s by "
90746+#define GR_EXEC_AUDIT_MSG "exec of %.930s (%.128s) by "
90747+#define GR_RESOURCE_MSG "denied resource overstep by requesting %lu for %.16s against limit %lu for "
90748+#define GR_RWXMMAP_MSG "denied RWX mmap of %.950s by "
90749+#define GR_RWXMPROTECT_MSG "denied RWX mprotect of %.950s by "
90750+#define GR_TEXTREL_AUDIT_MSG "denied text relocation in %.950s, VMA:0x%08lx 0x%08lx by "
90751+#define GR_PTGNUSTACK_MSG "denied marking stack executable as requested by PT_GNU_STACK marking in %.950s by "
90752+#define GR_VM86_MSG "denied use of vm86 by "
90753+#define GR_PTRACE_AUDIT_MSG "process %.950s(%.16s:%d) attached to via ptrace by "
90754+#define GR_PTRACE_READEXEC_MSG "denied ptrace of unreadable binary %.950s by "
90755+#define GR_INIT_TRANSFER_MSG "persistent special role transferred privilege to init by "
90756+#define GR_BADPROCPID_MSG "denied read of sensitive /proc/pid/%s entry via fd passed across exec by "
90757+#define GR_SYMLINKOWNER_MSG "denied following symlink %.950s since symlink owner %u does not match target owner %u, by "
90758+#define GR_BRUTE_DAEMON_MSG "bruteforce prevention initiated for the next 30 minutes or until service restarted, stalling each fork 30 seconds. Please investigate the crash report for "
90759+#define GR_BRUTE_SUID_MSG "bruteforce prevention initiated due to crash of %.950s against uid %u, banning suid/sgid execs for %u minutes. Please investigate the crash report for "
90760+#define GR_IPC_DENIED_MSG "denied %s of overly-permissive IPC object with creator uid %u by "
90761+#define GR_MSRWRITE_MSG "denied write to CPU MSR by "
90762diff --git a/include/linux/grsecurity.h b/include/linux/grsecurity.h
90763new file mode 100644
90764index 0000000..63c1850
90765--- /dev/null
90766+++ b/include/linux/grsecurity.h
90767@@ -0,0 +1,250 @@
90768+#ifndef GR_SECURITY_H
90769+#define GR_SECURITY_H
90770+#include <linux/fs.h>
90771+#include <linux/fs_struct.h>
90772+#include <linux/binfmts.h>
90773+#include <linux/gracl.h>
90774+
90775+/* notify of brain-dead configs */
90776+#if defined(CONFIG_GRKERNSEC_PROC_USER) && defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
90777+#error "CONFIG_GRKERNSEC_PROC_USER and CONFIG_GRKERNSEC_PROC_USERGROUP cannot both be enabled."
90778+#endif
90779+#if defined(CONFIG_GRKERNSEC_PROC) && !defined(CONFIG_GRKERNSEC_PROC_USER) && !defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
90780+#error "CONFIG_GRKERNSEC_PROC enabled, but neither CONFIG_GRKERNSEC_PROC_USER nor CONFIG_GRKERNSEC_PROC_USERGROUP enabled"
90781+#endif
90782+#if defined(CONFIG_PAX_NOEXEC) && !defined(CONFIG_PAX_PAGEEXEC) && !defined(CONFIG_PAX_SEGMEXEC) && !defined(CONFIG_PAX_KERNEXEC)
90783+#error "CONFIG_PAX_NOEXEC enabled, but PAGEEXEC, SEGMEXEC, and KERNEXEC are disabled."
90784+#endif
90785+#if defined(CONFIG_PAX_ASLR) && !defined(CONFIG_PAX_RANDKSTACK) && !defined(CONFIG_PAX_RANDUSTACK) && !defined(CONFIG_PAX_RANDMMAP)
90786+#error "CONFIG_PAX_ASLR enabled, but RANDKSTACK, RANDUSTACK, and RANDMMAP are disabled."
90787+#endif
90788+#if defined(CONFIG_PAX) && !defined(CONFIG_PAX_NOEXEC) && !defined(CONFIG_PAX_ASLR)
90789+#error "CONFIG_PAX enabled, but no PaX options are enabled."
90790+#endif
90791+
90792+int gr_handle_new_usb(void);
90793+
90794+void gr_handle_brute_attach(int dumpable);
90795+void gr_handle_brute_check(void);
90796+void gr_handle_kernel_exploit(void);
90797+
90798+char gr_roletype_to_char(void);
90799+
90800+int gr_proc_is_restricted(void);
90801+
90802+int gr_acl_enable_at_secure(void);
90803+
90804+int gr_check_user_change(kuid_t real, kuid_t effective, kuid_t fs);
90805+int gr_check_group_change(kgid_t real, kgid_t effective, kgid_t fs);
90806+
90807+int gr_learn_cap(const struct task_struct *task, const struct cred *cred, const int cap);
90808+
90809+void gr_del_task_from_ip_table(struct task_struct *p);
90810+
90811+int gr_pid_is_chrooted(struct task_struct *p);
90812+int gr_handle_chroot_fowner(struct pid *pid, enum pid_type type);
90813+int gr_handle_chroot_nice(void);
90814+int gr_handle_chroot_sysctl(const int op);
90815+int gr_handle_chroot_setpriority(struct task_struct *p,
90816+ const int niceval);
90817+int gr_chroot_fchdir(struct dentry *u_dentry, struct vfsmount *u_mnt);
90818+int gr_chroot_fhandle(void);
90819+int gr_handle_chroot_chroot(const struct dentry *dentry,
90820+ const struct vfsmount *mnt);
90821+void gr_handle_chroot_chdir(const struct path *path);
90822+int gr_handle_chroot_chmod(const struct dentry *dentry,
90823+ const struct vfsmount *mnt, const int mode);
90824+int gr_handle_chroot_mknod(const struct dentry *dentry,
90825+ const struct vfsmount *mnt, const int mode);
90826+int gr_handle_chroot_mount(const struct dentry *dentry,
90827+ const struct vfsmount *mnt,
90828+ const char *dev_name);
90829+int gr_handle_chroot_pivot(void);
90830+int gr_handle_chroot_unix(const pid_t pid);
90831+
90832+int gr_handle_rawio(const struct inode *inode);
90833+
90834+void gr_handle_ioperm(void);
90835+void gr_handle_iopl(void);
90836+void gr_handle_msr_write(void);
90837+
90838+umode_t gr_acl_umask(void);
90839+
90840+int gr_tpe_allow(const struct file *file);
90841+
90842+void gr_set_chroot_entries(struct task_struct *task, const struct path *path);
90843+void gr_clear_chroot_entries(struct task_struct *task);
90844+
90845+void gr_log_forkfail(const int retval);
90846+void gr_log_timechange(void);
90847+void gr_log_signal(const int sig, const void *addr, const struct task_struct *t);
90848+void gr_log_chdir(const struct dentry *dentry,
90849+ const struct vfsmount *mnt);
90850+void gr_log_chroot_exec(const struct dentry *dentry,
90851+ const struct vfsmount *mnt);
90852+void gr_log_remount(const char *devname, const int retval);
90853+void gr_log_unmount(const char *devname, const int retval);
90854+void gr_log_mount(const char *from, struct path *to, const int retval);
90855+void gr_log_textrel(struct vm_area_struct *vma);
90856+void gr_log_ptgnustack(struct file *file);
90857+void gr_log_rwxmmap(struct file *file);
90858+void gr_log_rwxmprotect(struct vm_area_struct *vma);
90859+
90860+int gr_handle_follow_link(const struct inode *parent,
90861+ const struct inode *inode,
90862+ const struct dentry *dentry,
90863+ const struct vfsmount *mnt);
90864+int gr_handle_fifo(const struct dentry *dentry,
90865+ const struct vfsmount *mnt,
90866+ const struct dentry *dir, const int flag,
90867+ const int acc_mode);
90868+int gr_handle_hardlink(const struct dentry *dentry,
90869+ const struct vfsmount *mnt,
90870+ struct inode *inode,
90871+ const int mode, const struct filename *to);
90872+
90873+int gr_is_capable(const int cap);
90874+int gr_is_capable_nolog(const int cap);
90875+int gr_task_is_capable(const struct task_struct *task, const struct cred *cred, const int cap);
90876+int gr_task_is_capable_nolog(const struct task_struct *task, const int cap);
90877+
90878+void gr_copy_label(struct task_struct *tsk);
90879+void gr_handle_crash(struct task_struct *task, const int sig);
90880+int gr_handle_signal(const struct task_struct *p, const int sig);
90881+int gr_check_crash_uid(const kuid_t uid);
90882+int gr_check_protected_task(const struct task_struct *task);
90883+int gr_check_protected_task_fowner(struct pid *pid, enum pid_type type);
90884+int gr_acl_handle_mmap(const struct file *file,
90885+ const unsigned long prot);
90886+int gr_acl_handle_mprotect(const struct file *file,
90887+ const unsigned long prot);
90888+int gr_check_hidden_task(const struct task_struct *tsk);
90889+__u32 gr_acl_handle_truncate(const struct dentry *dentry,
90890+ const struct vfsmount *mnt);
90891+__u32 gr_acl_handle_utime(const struct dentry *dentry,
90892+ const struct vfsmount *mnt);
90893+__u32 gr_acl_handle_access(const struct dentry *dentry,
90894+ const struct vfsmount *mnt, const int fmode);
90895+__u32 gr_acl_handle_chmod(const struct dentry *dentry,
90896+ const struct vfsmount *mnt, umode_t *mode);
90897+__u32 gr_acl_handle_chown(const struct dentry *dentry,
90898+ const struct vfsmount *mnt);
90899+__u32 gr_acl_handle_setxattr(const struct dentry *dentry,
90900+ const struct vfsmount *mnt);
90901+__u32 gr_acl_handle_removexattr(const struct dentry *dentry,
90902+ const struct vfsmount *mnt);
90903+int gr_handle_ptrace(struct task_struct *task, const long request);
90904+int gr_handle_proc_ptrace(struct task_struct *task);
90905+__u32 gr_acl_handle_execve(const struct dentry *dentry,
90906+ const struct vfsmount *mnt);
90907+int gr_check_crash_exec(const struct file *filp);
90908+int gr_acl_is_enabled(void);
90909+void gr_set_role_label(struct task_struct *task, const kuid_t uid,
90910+ const kgid_t gid);
90911+int gr_set_proc_label(const struct dentry *dentry,
90912+ const struct vfsmount *mnt,
90913+ const int unsafe_flags);
90914+__u32 gr_acl_handle_hidden_file(const struct dentry *dentry,
90915+ const struct vfsmount *mnt);
90916+__u32 gr_acl_handle_open(const struct dentry *dentry,
90917+ const struct vfsmount *mnt, int acc_mode);
90918+__u32 gr_acl_handle_creat(const struct dentry *dentry,
90919+ const struct dentry *p_dentry,
90920+ const struct vfsmount *p_mnt,
90921+ int open_flags, int acc_mode, const int imode);
90922+void gr_handle_create(const struct dentry *dentry,
90923+ const struct vfsmount *mnt);
90924+void gr_handle_proc_create(const struct dentry *dentry,
90925+ const struct inode *inode);
90926+__u32 gr_acl_handle_mknod(const struct dentry *new_dentry,
90927+ const struct dentry *parent_dentry,
90928+ const struct vfsmount *parent_mnt,
90929+ const int mode);
90930+__u32 gr_acl_handle_mkdir(const struct dentry *new_dentry,
90931+ const struct dentry *parent_dentry,
90932+ const struct vfsmount *parent_mnt);
90933+__u32 gr_acl_handle_rmdir(const struct dentry *dentry,
90934+ const struct vfsmount *mnt);
90935+void gr_handle_delete(const u64 ino, const dev_t dev);
90936+__u32 gr_acl_handle_unlink(const struct dentry *dentry,
90937+ const struct vfsmount *mnt);
90938+__u32 gr_acl_handle_symlink(const struct dentry *new_dentry,
90939+ const struct dentry *parent_dentry,
90940+ const struct vfsmount *parent_mnt,
90941+ const struct filename *from);
90942+__u32 gr_acl_handle_link(const struct dentry *new_dentry,
90943+ const struct dentry *parent_dentry,
90944+ const struct vfsmount *parent_mnt,
90945+ const struct dentry *old_dentry,
90946+ const struct vfsmount *old_mnt, const struct filename *to);
90947+int gr_handle_symlink_owner(const struct path *link, const struct inode *target);
90948+int gr_acl_handle_rename(struct dentry *new_dentry,
90949+ struct dentry *parent_dentry,
90950+ const struct vfsmount *parent_mnt,
90951+ struct dentry *old_dentry,
90952+ struct inode *old_parent_inode,
90953+ struct vfsmount *old_mnt, const struct filename *newname, unsigned int flags);
90954+void gr_handle_rename(struct inode *old_dir, struct inode *new_dir,
90955+ struct dentry *old_dentry,
90956+ struct dentry *new_dentry,
90957+ struct vfsmount *mnt, const __u8 replace, unsigned int flags);
90958+__u32 gr_check_link(const struct dentry *new_dentry,
90959+ const struct dentry *parent_dentry,
90960+ const struct vfsmount *parent_mnt,
90961+ const struct dentry *old_dentry,
90962+ const struct vfsmount *old_mnt);
90963+int gr_acl_handle_filldir(const struct file *file, const char *name,
90964+ const unsigned int namelen, const u64 ino);
90965+
90966+__u32 gr_acl_handle_unix(const struct dentry *dentry,
90967+ const struct vfsmount *mnt);
90968+void gr_acl_handle_exit(void);
90969+void gr_acl_handle_psacct(struct task_struct *task, const long code);
90970+int gr_acl_handle_procpidmem(const struct task_struct *task);
90971+int gr_handle_rofs_mount(struct dentry *dentry, struct vfsmount *mnt, int mnt_flags);
90972+int gr_handle_rofs_blockwrite(struct dentry *dentry, struct vfsmount *mnt, int acc_mode);
90973+void gr_audit_ptrace(struct task_struct *task);
90974+dev_t gr_get_dev_from_dentry(struct dentry *dentry);
90975+u64 gr_get_ino_from_dentry(struct dentry *dentry);
90976+void gr_put_exec_file(struct task_struct *task);
90977+
90978+int gr_ptrace_readexec(struct file *file, int unsafe_flags);
90979+
90980+void gr_inc_chroot_refcnts(struct dentry *dentry, struct vfsmount *mnt);
90981+void gr_dec_chroot_refcnts(struct dentry *dentry, struct vfsmount *mnt);
90982+int gr_bad_chroot_rename(struct dentry *olddentry, struct vfsmount *oldmnt,
90983+ struct dentry *newdentry, struct vfsmount *newmnt);
90984+
90985+#ifdef CONFIG_GRKERNSEC_RESLOG
90986+extern void gr_log_resource(const struct task_struct *task, const int res,
90987+ const unsigned long wanted, const int gt);
90988+#else
90989+static inline void gr_log_resource(const struct task_struct *task, const int res,
90990+ const unsigned long wanted, const int gt)
90991+{
90992+}
90993+#endif
90994+
90995+#ifdef CONFIG_GRKERNSEC
90996+void task_grsec_rbac(struct seq_file *m, struct task_struct *p);
90997+void gr_handle_vm86(void);
90998+void gr_handle_mem_readwrite(u64 from, u64 to);
90999+
91000+void gr_log_badprocpid(const char *entry);
91001+
91002+extern int grsec_enable_dmesg;
91003+extern int grsec_disable_privio;
91004+
91005+#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
91006+extern kgid_t grsec_proc_gid;
91007+#endif
91008+
91009+#ifdef CONFIG_GRKERNSEC_CHROOT_FINDTASK
91010+extern int grsec_enable_chroot_findtask;
91011+#endif
91012+#ifdef CONFIG_GRKERNSEC_SETXID
91013+extern int grsec_enable_setxid;
91014+#endif
91015+#endif
91016+
91017+#endif
91018diff --git a/include/linux/grsock.h b/include/linux/grsock.h
91019new file mode 100644
91020index 0000000..e7ffaaf
91021--- /dev/null
91022+++ b/include/linux/grsock.h
91023@@ -0,0 +1,19 @@
91024+#ifndef __GRSOCK_H
91025+#define __GRSOCK_H
91026+
91027+extern void gr_attach_curr_ip(const struct sock *sk);
91028+extern int gr_handle_sock_all(const int family, const int type,
91029+ const int protocol);
91030+extern int gr_handle_sock_server(const struct sockaddr *sck);
91031+extern int gr_handle_sock_server_other(const struct sock *sck);
91032+extern int gr_handle_sock_client(const struct sockaddr *sck);
91033+extern int gr_search_connect(struct socket * sock,
91034+ struct sockaddr_in * addr);
91035+extern int gr_search_bind(struct socket * sock,
91036+ struct sockaddr_in * addr);
91037+extern int gr_search_listen(struct socket * sock);
91038+extern int gr_search_accept(struct socket * sock);
91039+extern int gr_search_socket(const int domain, const int type,
91040+ const int protocol);
91041+
91042+#endif
91043diff --git a/include/linux/highmem.h b/include/linux/highmem.h
91044index 9286a46..373f27f 100644
91045--- a/include/linux/highmem.h
91046+++ b/include/linux/highmem.h
91047@@ -189,6 +189,18 @@ static inline void clear_highpage(struct page *page)
91048 kunmap_atomic(kaddr);
91049 }
91050
91051+static inline void sanitize_highpage(struct page *page)
91052+{
91053+ void *kaddr;
91054+ unsigned long flags;
91055+
91056+ local_irq_save(flags);
91057+ kaddr = kmap_atomic(page);
91058+ clear_page(kaddr);
91059+ kunmap_atomic(kaddr);
91060+ local_irq_restore(flags);
91061+}
91062+
91063 static inline void zero_user_segments(struct page *page,
91064 unsigned start1, unsigned end1,
91065 unsigned start2, unsigned end2)
91066diff --git a/include/linux/hwmon-sysfs.h b/include/linux/hwmon-sysfs.h
91067index 1c7b89a..7dda400 100644
91068--- a/include/linux/hwmon-sysfs.h
91069+++ b/include/linux/hwmon-sysfs.h
91070@@ -25,7 +25,8 @@
91071 struct sensor_device_attribute{
91072 struct device_attribute dev_attr;
91073 int index;
91074-};
91075+} __do_const;
91076+typedef struct sensor_device_attribute __no_const sensor_device_attribute_no_const;
91077 #define to_sensor_dev_attr(_dev_attr) \
91078 container_of(_dev_attr, struct sensor_device_attribute, dev_attr)
91079
91080@@ -41,7 +42,8 @@ struct sensor_device_attribute_2 {
91081 struct device_attribute dev_attr;
91082 u8 index;
91083 u8 nr;
91084-};
91085+} __do_const;
91086+typedef struct sensor_device_attribute_2 __no_const sensor_device_attribute_2_no_const;
91087 #define to_sensor_dev_attr_2(_dev_attr) \
91088 container_of(_dev_attr, struct sensor_device_attribute_2, dev_attr)
91089
91090diff --git a/include/linux/i2c.h b/include/linux/i2c.h
91091index f17da50..2f8b203 100644
91092--- a/include/linux/i2c.h
91093+++ b/include/linux/i2c.h
91094@@ -409,6 +409,7 @@ struct i2c_algorithm {
91095 int (*unreg_slave)(struct i2c_client *client);
91096 #endif
91097 };
91098+typedef struct i2c_algorithm __no_const i2c_algorithm_no_const;
91099
91100 /**
91101 * struct i2c_bus_recovery_info - I2C bus recovery information
91102diff --git a/include/linux/if_pppox.h b/include/linux/if_pppox.h
91103index aff7ad8..3942bbd 100644
91104--- a/include/linux/if_pppox.h
91105+++ b/include/linux/if_pppox.h
91106@@ -76,7 +76,7 @@ struct pppox_proto {
91107 int (*ioctl)(struct socket *sock, unsigned int cmd,
91108 unsigned long arg);
91109 struct module *owner;
91110-};
91111+} __do_const;
91112
91113 extern int register_pppox_proto(int proto_num, const struct pppox_proto *pp);
91114 extern void unregister_pppox_proto(int proto_num);
91115diff --git a/include/linux/init.h b/include/linux/init.h
91116index 2df8e8d..3e1280d 100644
91117--- a/include/linux/init.h
91118+++ b/include/linux/init.h
91119@@ -37,9 +37,17 @@
91120 * section.
91121 */
91122
91123+#define add_init_latent_entropy __latent_entropy
91124+
91125+#ifdef CONFIG_MEMORY_HOTPLUG
91126+#define add_meminit_latent_entropy
91127+#else
91128+#define add_meminit_latent_entropy __latent_entropy
91129+#endif
91130+
91131 /* These are for everybody (although not all archs will actually
91132 discard it in modules) */
91133-#define __init __section(.init.text) __cold notrace
91134+#define __init __section(.init.text) __cold notrace add_init_latent_entropy
91135 #define __initdata __section(.init.data)
91136 #define __initconst __constsection(.init.rodata)
91137 #define __exitdata __section(.exit.data)
91138@@ -100,7 +108,7 @@
91139 #define __cpuexitconst
91140
91141 /* Used for MEMORY_HOTPLUG */
91142-#define __meminit __section(.meminit.text) __cold notrace
91143+#define __meminit __section(.meminit.text) __cold notrace add_meminit_latent_entropy
91144 #define __meminitdata __section(.meminit.data)
91145 #define __meminitconst __constsection(.meminit.rodata)
91146 #define __memexit __section(.memexit.text) __exitused __cold notrace
91147diff --git a/include/linux/init_task.h b/include/linux/init_task.h
91148index 696d223..6d6b39f 100644
91149--- a/include/linux/init_task.h
91150+++ b/include/linux/init_task.h
91151@@ -158,6 +158,12 @@ extern struct task_group root_task_group;
91152
91153 #define INIT_TASK_COMM "swapper"
91154
91155+#ifdef CONFIG_X86
91156+#define INIT_TASK_THREAD_INFO .tinfo = INIT_THREAD_INFO,
91157+#else
91158+#define INIT_TASK_THREAD_INFO
91159+#endif
91160+
91161 #ifdef CONFIG_RT_MUTEXES
91162 # define INIT_RT_MUTEXES(tsk) \
91163 .pi_waiters = RB_ROOT, \
91164@@ -224,6 +230,7 @@ extern struct task_group root_task_group;
91165 RCU_POINTER_INITIALIZER(cred, &init_cred), \
91166 .comm = INIT_TASK_COMM, \
91167 .thread = INIT_THREAD, \
91168+ INIT_TASK_THREAD_INFO \
91169 .fs = &init_fs, \
91170 .files = &init_files, \
91171 .signal = &init_signals, \
91172diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h
91173index 2e88580..f6a99a0 100644
91174--- a/include/linux/interrupt.h
91175+++ b/include/linux/interrupt.h
91176@@ -420,8 +420,8 @@ extern const char * const softirq_to_name[NR_SOFTIRQS];
91177
91178 struct softirq_action
91179 {
91180- void (*action)(struct softirq_action *);
91181-};
91182+ void (*action)(void);
91183+} __no_const;
91184
91185 asmlinkage void do_softirq(void);
91186 asmlinkage void __do_softirq(void);
91187@@ -435,7 +435,7 @@ static inline void do_softirq_own_stack(void)
91188 }
91189 #endif
91190
91191-extern void open_softirq(int nr, void (*action)(struct softirq_action *));
91192+extern void open_softirq(int nr, void (*action)(void));
91193 extern void softirq_init(void);
91194 extern void __raise_softirq_irqoff(unsigned int nr);
91195
91196diff --git a/include/linux/iommu.h b/include/linux/iommu.h
91197index 38daa45..4de4317 100644
91198--- a/include/linux/iommu.h
91199+++ b/include/linux/iommu.h
91200@@ -147,7 +147,7 @@ struct iommu_ops {
91201
91202 unsigned long pgsize_bitmap;
91203 void *priv;
91204-};
91205+} __do_const;
91206
91207 #define IOMMU_GROUP_NOTIFY_ADD_DEVICE 1 /* Device added */
91208 #define IOMMU_GROUP_NOTIFY_DEL_DEVICE 2 /* Pre Device removed */
91209diff --git a/include/linux/ioport.h b/include/linux/ioport.h
91210index 2c525022..345b106 100644
91211--- a/include/linux/ioport.h
91212+++ b/include/linux/ioport.h
91213@@ -161,7 +161,7 @@ struct resource *lookup_resource(struct resource *root, resource_size_t start);
91214 int adjust_resource(struct resource *res, resource_size_t start,
91215 resource_size_t size);
91216 resource_size_t resource_alignment(struct resource *res);
91217-static inline resource_size_t resource_size(const struct resource *res)
91218+static inline resource_size_t __intentional_overflow(-1) resource_size(const struct resource *res)
91219 {
91220 return res->end - res->start + 1;
91221 }
91222diff --git a/include/linux/ipc_namespace.h b/include/linux/ipc_namespace.h
91223index 1eee6bc..9cf4912 100644
91224--- a/include/linux/ipc_namespace.h
91225+++ b/include/linux/ipc_namespace.h
91226@@ -60,7 +60,7 @@ struct ipc_namespace {
91227 struct user_namespace *user_ns;
91228
91229 struct ns_common ns;
91230-};
91231+} __randomize_layout;
91232
91233 extern struct ipc_namespace init_ipc_ns;
91234 extern atomic_t nr_ipc_ns;
91235diff --git a/include/linux/irq.h b/include/linux/irq.h
91236index d09ec7a..f373eb5 100644
91237--- a/include/linux/irq.h
91238+++ b/include/linux/irq.h
91239@@ -364,7 +364,8 @@ struct irq_chip {
91240 void (*irq_write_msi_msg)(struct irq_data *data, struct msi_msg *msg);
91241
91242 unsigned long flags;
91243-};
91244+} __do_const;
91245+typedef struct irq_chip __no_const irq_chip_no_const;
91246
91247 /*
91248 * irq_chip specific flags
91249diff --git a/include/linux/irqchip/arm-gic.h b/include/linux/irqchip/arm-gic.h
91250index 71d706d..817cdec 100644
91251--- a/include/linux/irqchip/arm-gic.h
91252+++ b/include/linux/irqchip/arm-gic.h
91253@@ -95,7 +95,7 @@
91254
91255 struct device_node;
91256
91257-extern struct irq_chip gic_arch_extn;
91258+extern irq_chip_no_const gic_arch_extn;
91259
91260 void gic_init_bases(unsigned int, int, void __iomem *, void __iomem *,
91261 u32 offset, struct device_node *);
91262diff --git a/include/linux/irqdesc.h b/include/linux/irqdesc.h
91263index dd1109f..4f4fdda 100644
91264--- a/include/linux/irqdesc.h
91265+++ b/include/linux/irqdesc.h
91266@@ -61,7 +61,7 @@ struct irq_desc {
91267 unsigned int irq_count; /* For detecting broken IRQs */
91268 unsigned long last_unhandled; /* Aging timer for unhandled count */
91269 unsigned int irqs_unhandled;
91270- atomic_t threads_handled;
91271+ atomic_unchecked_t threads_handled;
91272 int threads_handled_last;
91273 raw_spinlock_t lock;
91274 struct cpumask *percpu_enabled;
91275diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h
91276index 676d730..8d3a1ad 100644
91277--- a/include/linux/irqdomain.h
91278+++ b/include/linux/irqdomain.h
91279@@ -40,6 +40,7 @@ struct device_node;
91280 struct irq_domain;
91281 struct of_device_id;
91282 struct irq_chip;
91283+typedef struct irq_chip __no_const irq_chip_no_const;
91284 struct irq_data;
91285
91286 /* Number of irqs reserved for a legacy isa controller */
91287diff --git a/include/linux/jiffies.h b/include/linux/jiffies.h
91288index c367cbd..c9b79e6 100644
91289--- a/include/linux/jiffies.h
91290+++ b/include/linux/jiffies.h
91291@@ -280,20 +280,20 @@ extern unsigned long preset_lpj;
91292 /*
91293 * Convert various time units to each other:
91294 */
91295-extern unsigned int jiffies_to_msecs(const unsigned long j);
91296-extern unsigned int jiffies_to_usecs(const unsigned long j);
91297+extern unsigned int jiffies_to_msecs(const unsigned long j) __intentional_overflow(-1);
91298+extern unsigned int jiffies_to_usecs(const unsigned long j) __intentional_overflow(-1);
91299
91300-static inline u64 jiffies_to_nsecs(const unsigned long j)
91301+static inline u64 __intentional_overflow(-1) jiffies_to_nsecs(const unsigned long j)
91302 {
91303 return (u64)jiffies_to_usecs(j) * NSEC_PER_USEC;
91304 }
91305
91306-extern unsigned long msecs_to_jiffies(const unsigned int m);
91307-extern unsigned long usecs_to_jiffies(const unsigned int u);
91308+extern unsigned long msecs_to_jiffies(const unsigned int m) __intentional_overflow(-1);
91309+extern unsigned long usecs_to_jiffies(const unsigned int u) __intentional_overflow(-1);
91310 extern unsigned long timespec_to_jiffies(const struct timespec *value);
91311 extern void jiffies_to_timespec(const unsigned long jiffies,
91312- struct timespec *value);
91313-extern unsigned long timeval_to_jiffies(const struct timeval *value);
91314+ struct timespec *value) __intentional_overflow(-1);
91315+extern unsigned long timeval_to_jiffies(const struct timeval *value) __intentional_overflow(-1);
91316 extern void jiffies_to_timeval(const unsigned long jiffies,
91317 struct timeval *value);
91318
91319diff --git a/include/linux/kallsyms.h b/include/linux/kallsyms.h
91320index 6883e19..e854fcb 100644
91321--- a/include/linux/kallsyms.h
91322+++ b/include/linux/kallsyms.h
91323@@ -15,7 +15,8 @@
91324
91325 struct module;
91326
91327-#ifdef CONFIG_KALLSYMS
91328+#if !defined(__INCLUDED_BY_HIDESYM) || !defined(CONFIG_KALLSYMS)
91329+#if defined(CONFIG_KALLSYMS) && !defined(CONFIG_GRKERNSEC_HIDESYM)
91330 /* Lookup the address for a symbol. Returns 0 if not found. */
91331 unsigned long kallsyms_lookup_name(const char *name);
91332
91333@@ -106,6 +107,21 @@ static inline int lookup_symbol_attrs(unsigned long addr, unsigned long *size, u
91334 /* Stupid that this does nothing, but I didn't create this mess. */
91335 #define __print_symbol(fmt, addr)
91336 #endif /*CONFIG_KALLSYMS*/
91337+#else /* when included by kallsyms.c, vsnprintf.c, kprobes.c, or
91338+ arch/x86/kernel/dumpstack.c, with HIDESYM enabled */
91339+extern unsigned long kallsyms_lookup_name(const char *name);
91340+extern void __print_symbol(const char *fmt, unsigned long address);
91341+extern int sprint_backtrace(char *buffer, unsigned long address);
91342+extern int sprint_symbol(char *buffer, unsigned long address);
91343+extern int sprint_symbol_no_offset(char *buffer, unsigned long address);
91344+const char *kallsyms_lookup(unsigned long addr,
91345+ unsigned long *symbolsize,
91346+ unsigned long *offset,
91347+ char **modname, char *namebuf);
91348+extern int kallsyms_lookup_size_offset(unsigned long addr,
91349+ unsigned long *symbolsize,
91350+ unsigned long *offset);
91351+#endif
91352
91353 /* This macro allows us to keep printk typechecking */
91354 static __printf(1, 2)
91355diff --git a/include/linux/kernel.h b/include/linux/kernel.h
91356index d6d630d..feea1f5 100644
91357--- a/include/linux/kernel.h
91358+++ b/include/linux/kernel.h
91359@@ -378,7 +378,7 @@ static inline int __must_check kstrtos32_from_user(const char __user *s, size_t
91360 /* Obsolete, do not use. Use kstrto<foo> instead */
91361
91362 extern unsigned long simple_strtoul(const char *,char **,unsigned int);
91363-extern long simple_strtol(const char *,char **,unsigned int);
91364+extern long simple_strtol(const char *,char **,unsigned int) __intentional_overflow(-1);
91365 extern unsigned long long simple_strtoull(const char *,char **,unsigned int);
91366 extern long long simple_strtoll(const char *,char **,unsigned int);
91367
91368diff --git a/include/linux/key-type.h b/include/linux/key-type.h
91369index ff9f1d3..6712be5 100644
91370--- a/include/linux/key-type.h
91371+++ b/include/linux/key-type.h
91372@@ -152,7 +152,7 @@ struct key_type {
91373 /* internal fields */
91374 struct list_head link; /* link in types list */
91375 struct lock_class_key lock_class; /* key->sem lock class */
91376-};
91377+} __do_const;
91378
91379 extern struct key_type key_type_keyring;
91380
91381diff --git a/include/linux/kgdb.h b/include/linux/kgdb.h
91382index e465bb1..19f605fd 100644
91383--- a/include/linux/kgdb.h
91384+++ b/include/linux/kgdb.h
91385@@ -52,7 +52,7 @@ extern int kgdb_connected;
91386 extern int kgdb_io_module_registered;
91387
91388 extern atomic_t kgdb_setting_breakpoint;
91389-extern atomic_t kgdb_cpu_doing_single_step;
91390+extern atomic_unchecked_t kgdb_cpu_doing_single_step;
91391
91392 extern struct task_struct *kgdb_usethread;
91393 extern struct task_struct *kgdb_contthread;
91394@@ -254,7 +254,7 @@ struct kgdb_arch {
91395 void (*correct_hw_break)(void);
91396
91397 void (*enable_nmi)(bool on);
91398-};
91399+} __do_const;
91400
91401 /**
91402 * struct kgdb_io - Describe the interface for an I/O driver to talk with KGDB.
91403@@ -279,7 +279,7 @@ struct kgdb_io {
91404 void (*pre_exception) (void);
91405 void (*post_exception) (void);
91406 int is_console;
91407-};
91408+} __do_const;
91409
91410 extern struct kgdb_arch arch_kgdb_ops;
91411
91412diff --git a/include/linux/kmemleak.h b/include/linux/kmemleak.h
91413index e705467..a92471d 100644
91414--- a/include/linux/kmemleak.h
91415+++ b/include/linux/kmemleak.h
91416@@ -27,7 +27,7 @@
91417
91418 extern void kmemleak_init(void) __ref;
91419 extern void kmemleak_alloc(const void *ptr, size_t size, int min_count,
91420- gfp_t gfp) __ref;
91421+ gfp_t gfp) __ref __size_overflow(2);
91422 extern void kmemleak_alloc_percpu(const void __percpu *ptr, size_t size) __ref;
91423 extern void kmemleak_free(const void *ptr) __ref;
91424 extern void kmemleak_free_part(const void *ptr, size_t size) __ref;
91425@@ -62,7 +62,7 @@ static inline void kmemleak_erase(void **ptr)
91426 static inline void kmemleak_init(void)
91427 {
91428 }
91429-static inline void kmemleak_alloc(const void *ptr, size_t size, int min_count,
91430+static inline void __size_overflow(2) kmemleak_alloc(const void *ptr, size_t size, int min_count,
91431 gfp_t gfp)
91432 {
91433 }
91434diff --git a/include/linux/kmod.h b/include/linux/kmod.h
91435index 0555cc6..40116ce 100644
91436--- a/include/linux/kmod.h
91437+++ b/include/linux/kmod.h
91438@@ -34,6 +34,8 @@ extern char modprobe_path[]; /* for sysctl */
91439 * usually useless though. */
91440 extern __printf(2, 3)
91441 int __request_module(bool wait, const char *name, ...);
91442+extern __printf(3, 4)
91443+int ___request_module(bool wait, char *param_name, const char *name, ...);
91444 #define request_module(mod...) __request_module(true, mod)
91445 #define request_module_nowait(mod...) __request_module(false, mod)
91446 #define try_then_request_module(x, mod...) \
91447@@ -57,6 +59,9 @@ struct subprocess_info {
91448 struct work_struct work;
91449 struct completion *complete;
91450 char *path;
91451+#ifdef CONFIG_GRKERNSEC
91452+ char *origpath;
91453+#endif
91454 char **argv;
91455 char **envp;
91456 int wait;
91457diff --git a/include/linux/kobject.h b/include/linux/kobject.h
91458index 2d61b90..a1d0a13 100644
91459--- a/include/linux/kobject.h
91460+++ b/include/linux/kobject.h
91461@@ -118,7 +118,7 @@ struct kobj_type {
91462 struct attribute **default_attrs;
91463 const struct kobj_ns_type_operations *(*child_ns_type)(struct kobject *kobj);
91464 const void *(*namespace)(struct kobject *kobj);
91465-};
91466+} __do_const;
91467
91468 struct kobj_uevent_env {
91469 char *argv[3];
91470@@ -142,6 +142,7 @@ struct kobj_attribute {
91471 ssize_t (*store)(struct kobject *kobj, struct kobj_attribute *attr,
91472 const char *buf, size_t count);
91473 };
91474+typedef struct kobj_attribute __no_const kobj_attribute_no_const;
91475
91476 extern const struct sysfs_ops kobj_sysfs_ops;
91477
91478@@ -169,7 +170,7 @@ struct kset {
91479 spinlock_t list_lock;
91480 struct kobject kobj;
91481 const struct kset_uevent_ops *uevent_ops;
91482-};
91483+} __randomize_layout;
91484
91485 extern void kset_init(struct kset *kset);
91486 extern int __must_check kset_register(struct kset *kset);
91487diff --git a/include/linux/kobject_ns.h b/include/linux/kobject_ns.h
91488index df32d25..fb52e27 100644
91489--- a/include/linux/kobject_ns.h
91490+++ b/include/linux/kobject_ns.h
91491@@ -44,7 +44,7 @@ struct kobj_ns_type_operations {
91492 const void *(*netlink_ns)(struct sock *sk);
91493 const void *(*initial_ns)(void);
91494 void (*drop_ns)(void *);
91495-};
91496+} __do_const;
91497
91498 int kobj_ns_type_register(const struct kobj_ns_type_operations *ops);
91499 int kobj_ns_type_registered(enum kobj_ns_type type);
91500diff --git a/include/linux/kref.h b/include/linux/kref.h
91501index 484604d..0f6c5b6 100644
91502--- a/include/linux/kref.h
91503+++ b/include/linux/kref.h
91504@@ -68,7 +68,7 @@ static inline void kref_get(struct kref *kref)
91505 static inline int kref_sub(struct kref *kref, unsigned int count,
91506 void (*release)(struct kref *kref))
91507 {
91508- WARN_ON(release == NULL);
91509+ BUG_ON(release == NULL);
91510
91511 if (atomic_sub_and_test((int) count, &kref->refcount)) {
91512 release(kref);
91513diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
91514index d12b210..d91fd76 100644
91515--- a/include/linux/kvm_host.h
91516+++ b/include/linux/kvm_host.h
91517@@ -455,7 +455,7 @@ static inline void kvm_irqfd_exit(void)
91518 {
91519 }
91520 #endif
91521-int kvm_init(void *opaque, unsigned vcpu_size, unsigned vcpu_align,
91522+int kvm_init(const void *opaque, unsigned vcpu_size, unsigned vcpu_align,
91523 struct module *module);
91524 void kvm_exit(void);
91525
91526@@ -633,7 +633,7 @@ int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu,
91527 struct kvm_guest_debug *dbg);
91528 int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run);
91529
91530-int kvm_arch_init(void *opaque);
91531+int kvm_arch_init(const void *opaque);
91532 void kvm_arch_exit(void);
91533
91534 int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu);
91535diff --git a/include/linux/libata.h b/include/linux/libata.h
91536index f8994b4..c1dec7a 100644
91537--- a/include/linux/libata.h
91538+++ b/include/linux/libata.h
91539@@ -989,7 +989,7 @@ struct ata_port_operations {
91540 * fields must be pointers.
91541 */
91542 const struct ata_port_operations *inherits;
91543-};
91544+} __do_const;
91545
91546 struct ata_port_info {
91547 unsigned long flags;
91548diff --git a/include/linux/linkage.h b/include/linux/linkage.h
91549index a6a42dd..6c5ebce 100644
91550--- a/include/linux/linkage.h
91551+++ b/include/linux/linkage.h
91552@@ -36,6 +36,7 @@
91553 #endif
91554
91555 #define __page_aligned_data __section(.data..page_aligned) __aligned(PAGE_SIZE)
91556+#define __page_aligned_rodata __read_only __aligned(PAGE_SIZE)
91557 #define __page_aligned_bss __section(.bss..page_aligned) __aligned(PAGE_SIZE)
91558
91559 /*
91560diff --git a/include/linux/list.h b/include/linux/list.h
91561index feb773c..98f3075 100644
91562--- a/include/linux/list.h
91563+++ b/include/linux/list.h
91564@@ -113,6 +113,19 @@ extern void __list_del_entry(struct list_head *entry);
91565 extern void list_del(struct list_head *entry);
91566 #endif
91567
91568+extern void __pax_list_add(struct list_head *new,
91569+ struct list_head *prev,
91570+ struct list_head *next);
91571+static inline void pax_list_add(struct list_head *new, struct list_head *head)
91572+{
91573+ __pax_list_add(new, head, head->next);
91574+}
91575+static inline void pax_list_add_tail(struct list_head *new, struct list_head *head)
91576+{
91577+ __pax_list_add(new, head->prev, head);
91578+}
91579+extern void pax_list_del(struct list_head *entry);
91580+
91581 /**
91582 * list_replace - replace old entry by new one
91583 * @old : the element to be replaced
91584@@ -146,6 +159,8 @@ static inline void list_del_init(struct list_head *entry)
91585 INIT_LIST_HEAD(entry);
91586 }
91587
91588+extern void pax_list_del_init(struct list_head *entry);
91589+
91590 /**
91591 * list_move - delete from one list and add as another's head
91592 * @list: the entry to move
91593diff --git a/include/linux/lockref.h b/include/linux/lockref.h
91594index b10b122..d37b3de 100644
91595--- a/include/linux/lockref.h
91596+++ b/include/linux/lockref.h
91597@@ -28,7 +28,7 @@ struct lockref {
91598 #endif
91599 struct {
91600 spinlock_t lock;
91601- int count;
91602+ atomic_t count;
91603 };
91604 };
91605 };
91606@@ -43,9 +43,29 @@ extern void lockref_mark_dead(struct lockref *);
91607 extern int lockref_get_not_dead(struct lockref *);
91608
91609 /* Must be called under spinlock for reliable results */
91610-static inline int __lockref_is_dead(const struct lockref *l)
91611+static inline int __lockref_is_dead(const struct lockref *lockref)
91612 {
91613- return ((int)l->count < 0);
91614+ return atomic_read(&lockref->count) < 0;
91615+}
91616+
91617+static inline int __lockref_read(const struct lockref *lockref)
91618+{
91619+ return atomic_read(&lockref->count);
91620+}
91621+
91622+static inline void __lockref_set(struct lockref *lockref, int count)
91623+{
91624+ atomic_set(&lockref->count, count);
91625+}
91626+
91627+static inline void __lockref_inc(struct lockref *lockref)
91628+{
91629+ atomic_inc(&lockref->count);
91630+}
91631+
91632+static inline void __lockref_dec(struct lockref *lockref)
91633+{
91634+ atomic_dec(&lockref->count);
91635 }
91636
91637 #endif /* __LINUX_LOCKREF_H */
91638diff --git a/include/linux/math64.h b/include/linux/math64.h
91639index c45c089..298841c 100644
91640--- a/include/linux/math64.h
91641+++ b/include/linux/math64.h
91642@@ -15,7 +15,7 @@
91643 * This is commonly provided by 32bit archs to provide an optimized 64bit
91644 * divide.
91645 */
91646-static inline u64 div_u64_rem(u64 dividend, u32 divisor, u32 *remainder)
91647+static inline u64 __intentional_overflow(-1) div_u64_rem(u64 dividend, u32 divisor, u32 *remainder)
91648 {
91649 *remainder = dividend % divisor;
91650 return dividend / divisor;
91651@@ -42,7 +42,7 @@ static inline u64 div64_u64_rem(u64 dividend, u64 divisor, u64 *remainder)
91652 /**
91653 * div64_u64 - unsigned 64bit divide with 64bit divisor
91654 */
91655-static inline u64 div64_u64(u64 dividend, u64 divisor)
91656+static inline u64 __intentional_overflow(-1) div64_u64(u64 dividend, u64 divisor)
91657 {
91658 return dividend / divisor;
91659 }
91660@@ -61,7 +61,7 @@ static inline s64 div64_s64(s64 dividend, s64 divisor)
91661 #define div64_ul(x, y) div_u64((x), (y))
91662
91663 #ifndef div_u64_rem
91664-static inline u64 div_u64_rem(u64 dividend, u32 divisor, u32 *remainder)
91665+static inline u64 __intentional_overflow(-1) div_u64_rem(u64 dividend, u32 divisor, u32 *remainder)
91666 {
91667 *remainder = do_div(dividend, divisor);
91668 return dividend;
91669@@ -77,7 +77,7 @@ extern u64 div64_u64_rem(u64 dividend, u64 divisor, u64 *remainder);
91670 #endif
91671
91672 #ifndef div64_u64
91673-extern u64 div64_u64(u64 dividend, u64 divisor);
91674+extern u64 __intentional_overflow(-1) div64_u64(u64 dividend, u64 divisor);
91675 #endif
91676
91677 #ifndef div64_s64
91678@@ -94,7 +94,7 @@ extern s64 div64_s64(s64 dividend, s64 divisor);
91679 * divide.
91680 */
91681 #ifndef div_u64
91682-static inline u64 div_u64(u64 dividend, u32 divisor)
91683+static inline u64 __intentional_overflow(-1) div_u64(u64 dividend, u32 divisor)
91684 {
91685 u32 remainder;
91686 return div_u64_rem(dividend, divisor, &remainder);
91687diff --git a/include/linux/mempolicy.h b/include/linux/mempolicy.h
91688index 3d385c8..deacb6a 100644
91689--- a/include/linux/mempolicy.h
91690+++ b/include/linux/mempolicy.h
91691@@ -91,6 +91,10 @@ static inline struct mempolicy *mpol_dup(struct mempolicy *pol)
91692 }
91693
91694 #define vma_policy(vma) ((vma)->vm_policy)
91695+static inline void set_vma_policy(struct vm_area_struct *vma, struct mempolicy *pol)
91696+{
91697+ vma->vm_policy = pol;
91698+}
91699
91700 static inline void mpol_get(struct mempolicy *pol)
91701 {
91702@@ -229,6 +233,9 @@ static inline void mpol_free_shared_policy(struct shared_policy *p)
91703 }
91704
91705 #define vma_policy(vma) NULL
91706+static inline void set_vma_policy(struct vm_area_struct *vma, struct mempolicy *pol)
91707+{
91708+}
91709
91710 static inline int
91711 vma_dup_policy(struct vm_area_struct *src, struct vm_area_struct *dst)
91712diff --git a/include/linux/mm.h b/include/linux/mm.h
91713index 47a9392..ef645bc 100644
91714--- a/include/linux/mm.h
91715+++ b/include/linux/mm.h
91716@@ -135,6 +135,11 @@ extern unsigned int kobjsize(const void *objp);
91717
91718 #define VM_DONTCOPY 0x00020000 /* Do not copy this vma on fork */
91719 #define VM_DONTEXPAND 0x00040000 /* Cannot expand with mremap() */
91720+
91721+#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_X86_32)
91722+#define VM_PAGEEXEC 0x00080000 /* vma->vm_page_prot needs special handling */
91723+#endif
91724+
91725 #define VM_ACCOUNT 0x00100000 /* Is a VM accounted object */
91726 #define VM_NORESERVE 0x00200000 /* should the VM suppress accounting */
91727 #define VM_HUGETLB 0x00400000 /* Huge TLB Page VM */
91728@@ -254,8 +259,8 @@ struct vm_operations_struct {
91729 /* called by access_process_vm when get_user_pages() fails, typically
91730 * for use by special VMAs that can switch between memory and hardware
91731 */
91732- int (*access)(struct vm_area_struct *vma, unsigned long addr,
91733- void *buf, int len, int write);
91734+ ssize_t (*access)(struct vm_area_struct *vma, unsigned long addr,
91735+ void *buf, size_t len, int write);
91736
91737 /* Called by the /proc/PID/maps code to ask the vma whether it
91738 * has a special name. Returning non-NULL will also cause this
91739@@ -293,6 +298,7 @@ struct vm_operations_struct {
91740 struct page *(*find_special_page)(struct vm_area_struct *vma,
91741 unsigned long addr);
91742 };
91743+typedef struct vm_operations_struct __no_const vm_operations_struct_no_const;
91744
91745 struct mmu_gather;
91746 struct inode;
91747@@ -1213,8 +1219,8 @@ int follow_pfn(struct vm_area_struct *vma, unsigned long address,
91748 unsigned long *pfn);
91749 int follow_phys(struct vm_area_struct *vma, unsigned long address,
91750 unsigned int flags, unsigned long *prot, resource_size_t *phys);
91751-int generic_access_phys(struct vm_area_struct *vma, unsigned long addr,
91752- void *buf, int len, int write);
91753+ssize_t generic_access_phys(struct vm_area_struct *vma, unsigned long addr,
91754+ void *buf, size_t len, int write);
91755
91756 static inline void unmap_shared_mapping_range(struct address_space *mapping,
91757 loff_t const holebegin, loff_t const holelen)
91758@@ -1254,9 +1260,9 @@ static inline int fixup_user_fault(struct task_struct *tsk,
91759 }
91760 #endif
91761
91762-extern int access_process_vm(struct task_struct *tsk, unsigned long addr, void *buf, int len, int write);
91763-extern int access_remote_vm(struct mm_struct *mm, unsigned long addr,
91764- void *buf, int len, int write);
91765+extern ssize_t access_process_vm(struct task_struct *tsk, unsigned long addr, void *buf, size_t len, int write);
91766+extern ssize_t access_remote_vm(struct mm_struct *mm, unsigned long addr,
91767+ void *buf, size_t len, int write);
91768
91769 long __get_user_pages(struct task_struct *tsk, struct mm_struct *mm,
91770 unsigned long start, unsigned long nr_pages,
91771@@ -1299,34 +1305,6 @@ int set_page_dirty_lock(struct page *page);
91772 int clear_page_dirty_for_io(struct page *page);
91773 int get_cmdline(struct task_struct *task, char *buffer, int buflen);
91774
91775-/* Is the vma a continuation of the stack vma above it? */
91776-static inline int vma_growsdown(struct vm_area_struct *vma, unsigned long addr)
91777-{
91778- return vma && (vma->vm_end == addr) && (vma->vm_flags & VM_GROWSDOWN);
91779-}
91780-
91781-static inline int stack_guard_page_start(struct vm_area_struct *vma,
91782- unsigned long addr)
91783-{
91784- return (vma->vm_flags & VM_GROWSDOWN) &&
91785- (vma->vm_start == addr) &&
91786- !vma_growsdown(vma->vm_prev, addr);
91787-}
91788-
91789-/* Is the vma a continuation of the stack vma below it? */
91790-static inline int vma_growsup(struct vm_area_struct *vma, unsigned long addr)
91791-{
91792- return vma && (vma->vm_start == addr) && (vma->vm_flags & VM_GROWSUP);
91793-}
91794-
91795-static inline int stack_guard_page_end(struct vm_area_struct *vma,
91796- unsigned long addr)
91797-{
91798- return (vma->vm_flags & VM_GROWSUP) &&
91799- (vma->vm_end == addr) &&
91800- !vma_growsup(vma->vm_next, addr);
91801-}
91802-
91803 extern struct task_struct *task_of_stack(struct task_struct *task,
91804 struct vm_area_struct *vma, bool in_group);
91805
91806@@ -1449,8 +1427,15 @@ static inline int __pud_alloc(struct mm_struct *mm, pgd_t *pgd,
91807 {
91808 return 0;
91809 }
91810+
91811+static inline int __pud_alloc_kernel(struct mm_struct *mm, pgd_t *pgd,
91812+ unsigned long address)
91813+{
91814+ return 0;
91815+}
91816 #else
91817 int __pud_alloc(struct mm_struct *mm, pgd_t *pgd, unsigned long address);
91818+int __pud_alloc_kernel(struct mm_struct *mm, pgd_t *pgd, unsigned long address);
91819 #endif
91820
91821 #if defined(__PAGETABLE_PMD_FOLDED) || !defined(CONFIG_MMU)
91822@@ -1460,6 +1445,12 @@ static inline int __pmd_alloc(struct mm_struct *mm, pud_t *pud,
91823 return 0;
91824 }
91825
91826+static inline int __pmd_alloc_kernel(struct mm_struct *mm, pud_t *pud,
91827+ unsigned long address)
91828+{
91829+ return 0;
91830+}
91831+
91832 static inline void mm_nr_pmds_init(struct mm_struct *mm) {}
91833
91834 static inline unsigned long mm_nr_pmds(struct mm_struct *mm)
91835@@ -1472,6 +1463,7 @@ static inline void mm_dec_nr_pmds(struct mm_struct *mm) {}
91836
91837 #else
91838 int __pmd_alloc(struct mm_struct *mm, pud_t *pud, unsigned long address);
91839+int __pmd_alloc_kernel(struct mm_struct *mm, pud_t *pud, unsigned long address);
91840
91841 static inline void mm_nr_pmds_init(struct mm_struct *mm)
91842 {
91843@@ -1509,11 +1501,23 @@ static inline pud_t *pud_alloc(struct mm_struct *mm, pgd_t *pgd, unsigned long a
91844 NULL: pud_offset(pgd, address);
91845 }
91846
91847+static inline pud_t *pud_alloc_kernel(struct mm_struct *mm, pgd_t *pgd, unsigned long address)
91848+{
91849+ return (unlikely(pgd_none(*pgd)) && __pud_alloc_kernel(mm, pgd, address))?
91850+ NULL: pud_offset(pgd, address);
91851+}
91852+
91853 static inline pmd_t *pmd_alloc(struct mm_struct *mm, pud_t *pud, unsigned long address)
91854 {
91855 return (unlikely(pud_none(*pud)) && __pmd_alloc(mm, pud, address))?
91856 NULL: pmd_offset(pud, address);
91857 }
91858+
91859+static inline pmd_t *pmd_alloc_kernel(struct mm_struct *mm, pud_t *pud, unsigned long address)
91860+{
91861+ return (unlikely(pud_none(*pud)) && __pmd_alloc_kernel(mm, pud, address))?
91862+ NULL: pmd_offset(pud, address);
91863+}
91864 #endif /* CONFIG_MMU && !__ARCH_HAS_4LEVEL_HACK */
91865
91866 #if USE_SPLIT_PTE_PTLOCKS
91867@@ -1890,12 +1894,23 @@ extern struct vm_area_struct *copy_vma(struct vm_area_struct **,
91868 bool *need_rmap_locks);
91869 extern void exit_mmap(struct mm_struct *);
91870
91871+#if defined(CONFIG_GRKERNSEC) && (defined(CONFIG_GRKERNSEC_RESLOG) || !defined(CONFIG_GRKERNSEC_NO_RBAC))
91872+extern void gr_learn_resource(const struct task_struct *task, const int res,
91873+ const unsigned long wanted, const int gt);
91874+#else
91875+static inline void gr_learn_resource(const struct task_struct *task, const int res,
91876+ const unsigned long wanted, const int gt)
91877+{
91878+}
91879+#endif
91880+
91881 static inline int check_data_rlimit(unsigned long rlim,
91882 unsigned long new,
91883 unsigned long start,
91884 unsigned long end_data,
91885 unsigned long start_data)
91886 {
91887+ gr_learn_resource(current, RLIMIT_DATA, (new - start) + (end_data - start_data), 1);
91888 if (rlim < RLIM_INFINITY) {
91889 if (((new - start) + (end_data - start_data)) > rlim)
91890 return -ENOSPC;
91891@@ -1920,7 +1935,7 @@ extern int install_special_mapping(struct mm_struct *mm,
91892 unsigned long addr, unsigned long len,
91893 unsigned long flags, struct page **pages);
91894
91895-extern unsigned long get_unmapped_area(struct file *, unsigned long, unsigned long, unsigned long, unsigned long);
91896+extern unsigned long get_unmapped_area(struct file *, unsigned long, unsigned long, unsigned long, unsigned long) __intentional_overflow(-1);
91897
91898 extern unsigned long mmap_region(struct file *file, unsigned long addr,
91899 unsigned long len, vm_flags_t vm_flags, unsigned long pgoff);
91900@@ -1928,6 +1943,7 @@ extern unsigned long do_mmap_pgoff(struct file *file, unsigned long addr,
91901 unsigned long len, unsigned long prot, unsigned long flags,
91902 unsigned long pgoff, unsigned long *populate);
91903 extern int do_munmap(struct mm_struct *, unsigned long, size_t);
91904+extern int __do_munmap(struct mm_struct *, unsigned long, size_t);
91905
91906 #ifdef CONFIG_MMU
91907 extern int __mm_populate(unsigned long addr, unsigned long len,
91908@@ -1956,10 +1972,11 @@ struct vm_unmapped_area_info {
91909 unsigned long high_limit;
91910 unsigned long align_mask;
91911 unsigned long align_offset;
91912+ unsigned long threadstack_offset;
91913 };
91914
91915-extern unsigned long unmapped_area(struct vm_unmapped_area_info *info);
91916-extern unsigned long unmapped_area_topdown(struct vm_unmapped_area_info *info);
91917+extern unsigned long unmapped_area(const struct vm_unmapped_area_info *info);
91918+extern unsigned long unmapped_area_topdown(const struct vm_unmapped_area_info *info);
91919
91920 /*
91921 * Search for an unmapped address range.
91922@@ -1971,7 +1988,7 @@ extern unsigned long unmapped_area_topdown(struct vm_unmapped_area_info *info);
91923 * - satisfies (begin_addr & align_mask) == (align_offset & align_mask)
91924 */
91925 static inline unsigned long
91926-vm_unmapped_area(struct vm_unmapped_area_info *info)
91927+vm_unmapped_area(const struct vm_unmapped_area_info *info)
91928 {
91929 if (!(info->flags & VM_UNMAPPED_AREA_TOPDOWN))
91930 return unmapped_area(info);
91931@@ -2033,6 +2050,10 @@ extern struct vm_area_struct * find_vma(struct mm_struct * mm, unsigned long add
91932 extern struct vm_area_struct * find_vma_prev(struct mm_struct * mm, unsigned long addr,
91933 struct vm_area_struct **pprev);
91934
91935+extern struct vm_area_struct *pax_find_mirror_vma(struct vm_area_struct *vma);
91936+extern __must_check long pax_mirror_vma(struct vm_area_struct *vma_m, struct vm_area_struct *vma);
91937+extern void pax_mirror_file_pte(struct vm_area_struct *vma, unsigned long address, struct page *page_m, spinlock_t *ptl);
91938+
91939 /* Look up the first VMA which intersects the interval start_addr..end_addr-1,
91940 NULL if none. Assume start_addr < end_addr. */
91941 static inline struct vm_area_struct * find_vma_intersection(struct mm_struct * mm, unsigned long start_addr, unsigned long end_addr)
91942@@ -2062,10 +2083,10 @@ static inline struct vm_area_struct *find_exact_vma(struct mm_struct *mm,
91943 }
91944
91945 #ifdef CONFIG_MMU
91946-pgprot_t vm_get_page_prot(unsigned long vm_flags);
91947+pgprot_t vm_get_page_prot(vm_flags_t vm_flags);
91948 void vma_set_page_prot(struct vm_area_struct *vma);
91949 #else
91950-static inline pgprot_t vm_get_page_prot(unsigned long vm_flags)
91951+static inline pgprot_t vm_get_page_prot(vm_flags_t vm_flags)
91952 {
91953 return __pgprot(0);
91954 }
91955@@ -2127,6 +2148,11 @@ void vm_stat_account(struct mm_struct *, unsigned long, struct file *, long);
91956 static inline void vm_stat_account(struct mm_struct *mm,
91957 unsigned long flags, struct file *file, long pages)
91958 {
91959+
91960+#ifdef CONFIG_PAX_RANDMMAP
91961+ if (!(mm->pax_flags & MF_PAX_RANDMMAP) || (flags & (VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)))
91962+#endif
91963+
91964 mm->total_vm += pages;
91965 }
91966 #endif /* CONFIG_PROC_FS */
91967@@ -2229,7 +2255,7 @@ extern int unpoison_memory(unsigned long pfn);
91968 extern int sysctl_memory_failure_early_kill;
91969 extern int sysctl_memory_failure_recovery;
91970 extern void shake_page(struct page *p, int access);
91971-extern atomic_long_t num_poisoned_pages;
91972+extern atomic_long_unchecked_t num_poisoned_pages;
91973 extern int soft_offline_page(struct page *page, int flags);
91974
91975 #if defined(CONFIG_TRANSPARENT_HUGEPAGE) || defined(CONFIG_HUGETLBFS)
91976@@ -2280,5 +2306,11 @@ void __init setup_nr_node_ids(void);
91977 static inline void setup_nr_node_ids(void) {}
91978 #endif
91979
91980+#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT
91981+extern void track_exec_limit(struct mm_struct *mm, unsigned long start, unsigned long end, unsigned long prot);
91982+#else
91983+static inline void track_exec_limit(struct mm_struct *mm, unsigned long start, unsigned long end, unsigned long prot) {}
91984+#endif
91985+
91986 #endif /* __KERNEL__ */
91987 #endif /* _LINUX_MM_H */
91988diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
91989index 199a03a..7328440 100644
91990--- a/include/linux/mm_types.h
91991+++ b/include/linux/mm_types.h
91992@@ -313,7 +313,9 @@ struct vm_area_struct {
91993 #ifdef CONFIG_NUMA
91994 struct mempolicy *vm_policy; /* NUMA policy for the VMA */
91995 #endif
91996-};
91997+
91998+ struct vm_area_struct *vm_mirror;/* PaX: mirror vma or NULL */
91999+} __randomize_layout;
92000
92001 struct core_thread {
92002 struct task_struct *task;
92003@@ -464,7 +466,25 @@ struct mm_struct {
92004 /* address of the bounds directory */
92005 void __user *bd_addr;
92006 #endif
92007-};
92008+
92009+#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)
92010+ unsigned long pax_flags;
92011+#endif
92012+
92013+#ifdef CONFIG_PAX_DLRESOLVE
92014+ unsigned long call_dl_resolve;
92015+#endif
92016+
92017+#if defined(CONFIG_PPC32) && defined(CONFIG_PAX_EMUSIGRT)
92018+ unsigned long call_syscall;
92019+#endif
92020+
92021+#ifdef CONFIG_PAX_ASLR
92022+ unsigned long delta_mmap; /* randomized offset */
92023+ unsigned long delta_stack; /* randomized offset */
92024+#endif
92025+
92026+} __randomize_layout;
92027
92028 static inline void mm_init_cpumask(struct mm_struct *mm)
92029 {
92030diff --git a/include/linux/mmc/core.h b/include/linux/mmc/core.h
92031index 160448f..7b332b7 100644
92032--- a/include/linux/mmc/core.h
92033+++ b/include/linux/mmc/core.h
92034@@ -79,7 +79,7 @@ struct mmc_command {
92035 #define mmc_cmd_type(cmd) ((cmd)->flags & MMC_CMD_MASK)
92036
92037 unsigned int retries; /* max number of retries */
92038- unsigned int error; /* command error */
92039+ int error; /* command error */
92040
92041 /*
92042 * Standard errno values are used for errors, but some have specific
92043diff --git a/include/linux/mmiotrace.h b/include/linux/mmiotrace.h
92044index c5d5278..f0b68c8 100644
92045--- a/include/linux/mmiotrace.h
92046+++ b/include/linux/mmiotrace.h
92047@@ -46,7 +46,7 @@ extern int kmmio_handler(struct pt_regs *regs, unsigned long addr);
92048 /* Called from ioremap.c */
92049 extern void mmiotrace_ioremap(resource_size_t offset, unsigned long size,
92050 void __iomem *addr);
92051-extern void mmiotrace_iounmap(volatile void __iomem *addr);
92052+extern void mmiotrace_iounmap(const volatile void __iomem *addr);
92053
92054 /* For anyone to insert markers. Remember trailing newline. */
92055 extern __printf(1, 2) int mmiotrace_printk(const char *fmt, ...);
92056@@ -66,7 +66,7 @@ static inline void mmiotrace_ioremap(resource_size_t offset,
92057 {
92058 }
92059
92060-static inline void mmiotrace_iounmap(volatile void __iomem *addr)
92061+static inline void mmiotrace_iounmap(const volatile void __iomem *addr)
92062 {
92063 }
92064
92065diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
92066index 2782df4..abe756e 100644
92067--- a/include/linux/mmzone.h
92068+++ b/include/linux/mmzone.h
92069@@ -526,7 +526,7 @@ struct zone {
92070
92071 ZONE_PADDING(_pad3_)
92072 /* Zone statistics */
92073- atomic_long_t vm_stat[NR_VM_ZONE_STAT_ITEMS];
92074+ atomic_long_unchecked_t vm_stat[NR_VM_ZONE_STAT_ITEMS];
92075 } ____cacheline_internodealigned_in_smp;
92076
92077 enum zone_flags {
92078diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h
92079index e530533..c9620c7 100644
92080--- a/include/linux/mod_devicetable.h
92081+++ b/include/linux/mod_devicetable.h
92082@@ -139,7 +139,7 @@ struct usb_device_id {
92083 #define USB_DEVICE_ID_MATCH_INT_PROTOCOL 0x0200
92084 #define USB_DEVICE_ID_MATCH_INT_NUMBER 0x0400
92085
92086-#define HID_ANY_ID (~0)
92087+#define HID_ANY_ID (~0U)
92088 #define HID_BUS_ANY 0xffff
92089 #define HID_GROUP_ANY 0x0000
92090
92091@@ -470,7 +470,7 @@ struct dmi_system_id {
92092 const char *ident;
92093 struct dmi_strmatch matches[4];
92094 void *driver_data;
92095-};
92096+} __do_const;
92097 /*
92098 * struct dmi_device_id appears during expansion of
92099 * "MODULE_DEVICE_TABLE(dmi, x)". Compiler doesn't look inside it
92100diff --git a/include/linux/module.h b/include/linux/module.h
92101index b03485b..a26974f 100644
92102--- a/include/linux/module.h
92103+++ b/include/linux/module.h
92104@@ -17,9 +17,11 @@
92105 #include <linux/moduleparam.h>
92106 #include <linux/jump_label.h>
92107 #include <linux/export.h>
92108+#include <linux/fs.h>
92109
92110 #include <linux/percpu.h>
92111 #include <asm/module.h>
92112+#include <asm/pgtable.h>
92113
92114 /* In stripped ARM and x86-64 modules, ~ is surprisingly rare. */
92115 #define MODULE_SIG_STRING "~Module signature appended~\n"
92116@@ -42,7 +44,7 @@ struct module_kobject {
92117 struct kobject *drivers_dir;
92118 struct module_param_attrs *mp;
92119 struct completion *kobj_completion;
92120-};
92121+} __randomize_layout;
92122
92123 struct module_attribute {
92124 struct attribute attr;
92125@@ -54,12 +56,13 @@ struct module_attribute {
92126 int (*test)(struct module *);
92127 void (*free)(struct module *);
92128 };
92129+typedef struct module_attribute __no_const module_attribute_no_const;
92130
92131 struct module_version_attribute {
92132 struct module_attribute mattr;
92133 const char *module_name;
92134 const char *version;
92135-} __attribute__ ((__aligned__(sizeof(void *))));
92136+} __do_const __attribute__ ((__aligned__(sizeof(void *))));
92137
92138 extern ssize_t __modver_version_show(struct module_attribute *,
92139 struct module_kobject *, char *);
92140@@ -221,7 +224,7 @@ struct module {
92141
92142 /* Sysfs stuff. */
92143 struct module_kobject mkobj;
92144- struct module_attribute *modinfo_attrs;
92145+ module_attribute_no_const *modinfo_attrs;
92146 const char *version;
92147 const char *srcversion;
92148 struct kobject *holders_dir;
92149@@ -270,19 +273,16 @@ struct module {
92150 int (*init)(void);
92151
92152 /* If this is non-NULL, vfree after init() returns */
92153- void *module_init;
92154+ void *module_init_rx, *module_init_rw;
92155
92156 /* Here is the actual code + data, vfree'd on unload. */
92157- void *module_core;
92158+ void *module_core_rx, *module_core_rw;
92159
92160 /* Here are the sizes of the init and core sections */
92161- unsigned int init_size, core_size;
92162+ unsigned int init_size_rw, core_size_rw;
92163
92164 /* The size of the executable code in each section. */
92165- unsigned int init_text_size, core_text_size;
92166-
92167- /* Size of RO sections of the module (text+rodata) */
92168- unsigned int init_ro_size, core_ro_size;
92169+ unsigned int init_size_rx, core_size_rx;
92170
92171 /* Arch-specific module values */
92172 struct mod_arch_specific arch;
92173@@ -338,6 +338,10 @@ struct module {
92174 #ifdef CONFIG_EVENT_TRACING
92175 struct ftrace_event_call **trace_events;
92176 unsigned int num_trace_events;
92177+ struct file_operations trace_id;
92178+ struct file_operations trace_enable;
92179+ struct file_operations trace_format;
92180+ struct file_operations trace_filter;
92181 #endif
92182 #ifdef CONFIG_FTRACE_MCOUNT_RECORD
92183 unsigned int num_ftrace_callsites;
92184@@ -365,7 +369,7 @@ struct module {
92185 ctor_fn_t *ctors;
92186 unsigned int num_ctors;
92187 #endif
92188-};
92189+} __randomize_layout;
92190 #ifndef MODULE_ARCH_INIT
92191 #define MODULE_ARCH_INIT {}
92192 #endif
92193@@ -386,18 +390,48 @@ bool is_module_address(unsigned long addr);
92194 bool is_module_percpu_address(unsigned long addr);
92195 bool is_module_text_address(unsigned long addr);
92196
92197+static inline int within_module_range(unsigned long addr, void *start, unsigned long size)
92198+{
92199+
92200+#ifdef CONFIG_PAX_KERNEXEC
92201+ if (ktla_ktva(addr) >= (unsigned long)start &&
92202+ ktla_ktva(addr) < (unsigned long)start + size)
92203+ return 1;
92204+#endif
92205+
92206+ return ((void *)addr >= start && (void *)addr < start + size);
92207+}
92208+
92209+static inline int within_module_core_rx(unsigned long addr, const struct module *mod)
92210+{
92211+ return within_module_range(addr, mod->module_core_rx, mod->core_size_rx);
92212+}
92213+
92214+static inline int within_module_core_rw(unsigned long addr, const struct module *mod)
92215+{
92216+ return within_module_range(addr, mod->module_core_rw, mod->core_size_rw);
92217+}
92218+
92219+static inline int within_module_init_rx(unsigned long addr, const struct module *mod)
92220+{
92221+ return within_module_range(addr, mod->module_init_rx, mod->init_size_rx);
92222+}
92223+
92224+static inline int within_module_init_rw(unsigned long addr, const struct module *mod)
92225+{
92226+ return within_module_range(addr, mod->module_init_rw, mod->init_size_rw);
92227+}
92228+
92229 static inline bool within_module_core(unsigned long addr,
92230 const struct module *mod)
92231 {
92232- return (unsigned long)mod->module_core <= addr &&
92233- addr < (unsigned long)mod->module_core + mod->core_size;
92234+ return within_module_core_rx(addr, mod) || within_module_core_rw(addr, mod);
92235 }
92236
92237 static inline bool within_module_init(unsigned long addr,
92238 const struct module *mod)
92239 {
92240- return (unsigned long)mod->module_init <= addr &&
92241- addr < (unsigned long)mod->module_init + mod->init_size;
92242+ return within_module_init_rx(addr, mod) || within_module_init_rw(addr, mod);
92243 }
92244
92245 static inline bool within_module(unsigned long addr, const struct module *mod)
92246diff --git a/include/linux/moduleloader.h b/include/linux/moduleloader.h
92247index 4d0cb9b..3169ac7 100644
92248--- a/include/linux/moduleloader.h
92249+++ b/include/linux/moduleloader.h
92250@@ -25,9 +25,21 @@ unsigned int arch_mod_section_prepend(struct module *mod, unsigned int section);
92251 sections. Returns NULL on failure. */
92252 void *module_alloc(unsigned long size);
92253
92254+#ifdef CONFIG_PAX_KERNEXEC
92255+void *module_alloc_exec(unsigned long size);
92256+#else
92257+#define module_alloc_exec(x) module_alloc(x)
92258+#endif
92259+
92260 /* Free memory returned from module_alloc. */
92261 void module_memfree(void *module_region);
92262
92263+#ifdef CONFIG_PAX_KERNEXEC
92264+void module_memfree_exec(void *module_region);
92265+#else
92266+#define module_memfree_exec(x) module_memfree((x))
92267+#endif
92268+
92269 /*
92270 * Apply the given relocation to the (simplified) ELF. Return -error
92271 * or 0.
92272@@ -45,8 +57,10 @@ static inline int apply_relocate(Elf_Shdr *sechdrs,
92273 unsigned int relsec,
92274 struct module *me)
92275 {
92276+#ifdef CONFIG_MODULES
92277 printk(KERN_ERR "module %s: REL relocation unsupported\n",
92278 module_name(me));
92279+#endif
92280 return -ENOEXEC;
92281 }
92282 #endif
92283@@ -68,8 +82,10 @@ static inline int apply_relocate_add(Elf_Shdr *sechdrs,
92284 unsigned int relsec,
92285 struct module *me)
92286 {
92287+#ifdef CONFIG_MODULES
92288 printk(KERN_ERR "module %s: REL relocation unsupported\n",
92289 module_name(me));
92290+#endif
92291 return -ENOEXEC;
92292 }
92293 #endif
92294diff --git a/include/linux/moduleparam.h b/include/linux/moduleparam.h
92295index 1c9effa..1160bdd 100644
92296--- a/include/linux/moduleparam.h
92297+++ b/include/linux/moduleparam.h
92298@@ -323,7 +323,7 @@ static inline void __kernel_param_unlock(void)
92299 * @len is usually just sizeof(string).
92300 */
92301 #define module_param_string(name, string, len, perm) \
92302- static const struct kparam_string __param_string_##name \
92303+ static const struct kparam_string __param_string_##name __used \
92304 = { len, string }; \
92305 __module_param_call(MODULE_PARAM_PREFIX, name, \
92306 &param_ops_string, \
92307@@ -467,7 +467,7 @@ extern int param_set_bint(const char *val, const struct kernel_param *kp);
92308 */
92309 #define module_param_array_named(name, array, type, nump, perm) \
92310 param_check_##type(name, &(array)[0]); \
92311- static const struct kparam_array __param_arr_##name \
92312+ static const struct kparam_array __param_arr_##name __used \
92313 = { .max = ARRAY_SIZE(array), .num = nump, \
92314 .ops = &param_ops_##type, \
92315 .elemsize = sizeof(array[0]), .elem = array }; \
92316diff --git a/include/linux/mount.h b/include/linux/mount.h
92317index 564beee..653be6f 100644
92318--- a/include/linux/mount.h
92319+++ b/include/linux/mount.h
92320@@ -67,7 +67,7 @@ struct vfsmount {
92321 struct dentry *mnt_root; /* root of the mounted tree */
92322 struct super_block *mnt_sb; /* pointer to superblock */
92323 int mnt_flags;
92324-};
92325+} __randomize_layout;
92326
92327 struct file; /* forward dec */
92328 struct path;
92329diff --git a/include/linux/namei.h b/include/linux/namei.h
92330index c899077..b9a2010 100644
92331--- a/include/linux/namei.h
92332+++ b/include/linux/namei.h
92333@@ -71,8 +71,8 @@ extern struct dentry *lock_rename(struct dentry *, struct dentry *);
92334 extern void unlock_rename(struct dentry *, struct dentry *);
92335
92336 extern void nd_jump_link(struct nameidata *nd, struct path *path);
92337-extern void nd_set_link(struct nameidata *nd, char *path);
92338-extern char *nd_get_link(struct nameidata *nd);
92339+extern void nd_set_link(struct nameidata *nd, const char *path);
92340+extern const char *nd_get_link(const struct nameidata *nd);
92341
92342 static inline void nd_terminate_link(void *name, size_t len, size_t maxlen)
92343 {
92344diff --git a/include/linux/net.h b/include/linux/net.h
92345index 17d8339..81656c0 100644
92346--- a/include/linux/net.h
92347+++ b/include/linux/net.h
92348@@ -192,7 +192,7 @@ struct net_proto_family {
92349 int (*create)(struct net *net, struct socket *sock,
92350 int protocol, int kern);
92351 struct module *owner;
92352-};
92353+} __do_const;
92354
92355 struct iovec;
92356 struct kvec;
92357diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
92358index 2787388..1dd8e88 100644
92359--- a/include/linux/netdevice.h
92360+++ b/include/linux/netdevice.h
92361@@ -1198,6 +1198,7 @@ struct net_device_ops {
92362 u8 state);
92363 #endif
92364 };
92365+typedef struct net_device_ops __no_const net_device_ops_no_const;
92366
92367 /**
92368 * enum net_device_priv_flags - &struct net_device priv_flags
92369@@ -1546,10 +1547,10 @@ struct net_device {
92370
92371 struct net_device_stats stats;
92372
92373- atomic_long_t rx_dropped;
92374- atomic_long_t tx_dropped;
92375+ atomic_long_unchecked_t rx_dropped;
92376+ atomic_long_unchecked_t tx_dropped;
92377
92378- atomic_t carrier_changes;
92379+ atomic_unchecked_t carrier_changes;
92380
92381 #ifdef CONFIG_WIRELESS_EXT
92382 const struct iw_handler_def * wireless_handlers;
92383diff --git a/include/linux/netfilter.h b/include/linux/netfilter.h
92384index 2517ece..0bbfcfb 100644
92385--- a/include/linux/netfilter.h
92386+++ b/include/linux/netfilter.h
92387@@ -85,7 +85,7 @@ struct nf_sockopt_ops {
92388 #endif
92389 /* Use the module struct to lock set/get code in place */
92390 struct module *owner;
92391-};
92392+} __do_const;
92393
92394 /* Function to register/unregister hook points. */
92395 int nf_register_hook(struct nf_hook_ops *reg);
92396diff --git a/include/linux/netfilter/nfnetlink.h b/include/linux/netfilter/nfnetlink.h
92397index e955d47..04a5338 100644
92398--- a/include/linux/netfilter/nfnetlink.h
92399+++ b/include/linux/netfilter/nfnetlink.h
92400@@ -19,7 +19,7 @@ struct nfnl_callback {
92401 const struct nlattr * const cda[]);
92402 const struct nla_policy *policy; /* netlink attribute policy */
92403 const u_int16_t attr_count; /* number of nlattr's */
92404-};
92405+} __do_const;
92406
92407 struct nfnetlink_subsystem {
92408 const char *name;
92409diff --git a/include/linux/netfilter/xt_gradm.h b/include/linux/netfilter/xt_gradm.h
92410new file mode 100644
92411index 0000000..33f4af8
92412--- /dev/null
92413+++ b/include/linux/netfilter/xt_gradm.h
92414@@ -0,0 +1,9 @@
92415+#ifndef _LINUX_NETFILTER_XT_GRADM_H
92416+#define _LINUX_NETFILTER_XT_GRADM_H 1
92417+
92418+struct xt_gradm_mtinfo {
92419+ __u16 flags;
92420+ __u16 invflags;
92421+};
92422+
92423+#endif
92424diff --git a/include/linux/nls.h b/include/linux/nls.h
92425index 520681b..2b7fabb 100644
92426--- a/include/linux/nls.h
92427+++ b/include/linux/nls.h
92428@@ -31,7 +31,7 @@ struct nls_table {
92429 const unsigned char *charset2upper;
92430 struct module *owner;
92431 struct nls_table *next;
92432-};
92433+} __do_const;
92434
92435 /* this value hold the maximum octet of charset */
92436 #define NLS_MAX_CHARSET_SIZE 6 /* for UTF-8 */
92437@@ -46,7 +46,7 @@ enum utf16_endian {
92438 /* nls_base.c */
92439 extern int __register_nls(struct nls_table *, struct module *);
92440 extern int unregister_nls(struct nls_table *);
92441-extern struct nls_table *load_nls(char *);
92442+extern struct nls_table *load_nls(const char *);
92443 extern void unload_nls(struct nls_table *);
92444 extern struct nls_table *load_nls_default(void);
92445 #define register_nls(nls) __register_nls((nls), THIS_MODULE)
92446diff --git a/include/linux/notifier.h b/include/linux/notifier.h
92447index d14a4c3..a078786 100644
92448--- a/include/linux/notifier.h
92449+++ b/include/linux/notifier.h
92450@@ -54,7 +54,8 @@ struct notifier_block {
92451 notifier_fn_t notifier_call;
92452 struct notifier_block __rcu *next;
92453 int priority;
92454-};
92455+} __do_const;
92456+typedef struct notifier_block __no_const notifier_block_no_const;
92457
92458 struct atomic_notifier_head {
92459 spinlock_t lock;
92460diff --git a/include/linux/oprofile.h b/include/linux/oprofile.h
92461index b2a0f15..4d7da32 100644
92462--- a/include/linux/oprofile.h
92463+++ b/include/linux/oprofile.h
92464@@ -138,9 +138,9 @@ int oprofilefs_create_ulong(struct dentry * root,
92465 int oprofilefs_create_ro_ulong(struct dentry * root,
92466 char const * name, ulong * val);
92467
92468-/** Create a file for read-only access to an atomic_t. */
92469+/** Create a file for read-only access to an atomic_unchecked_t. */
92470 int oprofilefs_create_ro_atomic(struct dentry * root,
92471- char const * name, atomic_t * val);
92472+ char const * name, atomic_unchecked_t * val);
92473
92474 /** create a directory */
92475 struct dentry *oprofilefs_mkdir(struct dentry *parent, char const *name);
92476diff --git a/include/linux/padata.h b/include/linux/padata.h
92477index 4386946..f50c615 100644
92478--- a/include/linux/padata.h
92479+++ b/include/linux/padata.h
92480@@ -129,7 +129,7 @@ struct parallel_data {
92481 struct padata_serial_queue __percpu *squeue;
92482 atomic_t reorder_objects;
92483 atomic_t refcnt;
92484- atomic_t seq_nr;
92485+ atomic_unchecked_t seq_nr;
92486 struct padata_cpumask cpumask;
92487 spinlock_t lock ____cacheline_aligned;
92488 unsigned int processed;
92489diff --git a/include/linux/path.h b/include/linux/path.h
92490index d137218..be0c176 100644
92491--- a/include/linux/path.h
92492+++ b/include/linux/path.h
92493@@ -1,13 +1,15 @@
92494 #ifndef _LINUX_PATH_H
92495 #define _LINUX_PATH_H
92496
92497+#include <linux/compiler.h>
92498+
92499 struct dentry;
92500 struct vfsmount;
92501
92502 struct path {
92503 struct vfsmount *mnt;
92504 struct dentry *dentry;
92505-};
92506+} __randomize_layout;
92507
92508 extern void path_get(const struct path *);
92509 extern void path_put(const struct path *);
92510diff --git a/include/linux/pci_hotplug.h b/include/linux/pci_hotplug.h
92511index 8c78950..0d74ed9 100644
92512--- a/include/linux/pci_hotplug.h
92513+++ b/include/linux/pci_hotplug.h
92514@@ -71,7 +71,8 @@ struct hotplug_slot_ops {
92515 int (*get_latch_status) (struct hotplug_slot *slot, u8 *value);
92516 int (*get_adapter_status) (struct hotplug_slot *slot, u8 *value);
92517 int (*reset_slot) (struct hotplug_slot *slot, int probe);
92518-};
92519+} __do_const;
92520+typedef struct hotplug_slot_ops __no_const hotplug_slot_ops_no_const;
92521
92522 /**
92523 * struct hotplug_slot_info - used to notify the hotplug pci core of the state of the slot
92524diff --git a/include/linux/percpu.h b/include/linux/percpu.h
92525index caebf2a..4c3ae9d 100644
92526--- a/include/linux/percpu.h
92527+++ b/include/linux/percpu.h
92528@@ -34,7 +34,7 @@
92529 * preallocate for this. Keep PERCPU_DYNAMIC_RESERVE equal to or
92530 * larger than PERCPU_DYNAMIC_EARLY_SIZE.
92531 */
92532-#define PERCPU_DYNAMIC_EARLY_SLOTS 128
92533+#define PERCPU_DYNAMIC_EARLY_SLOTS 256
92534 #define PERCPU_DYNAMIC_EARLY_SIZE (12 << 10)
92535
92536 /*
92537diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
92538index 2b62198..2b74233 100644
92539--- a/include/linux/perf_event.h
92540+++ b/include/linux/perf_event.h
92541@@ -343,8 +343,8 @@ struct perf_event {
92542
92543 enum perf_event_active_state state;
92544 unsigned int attach_state;
92545- local64_t count;
92546- atomic64_t child_count;
92547+ local64_t count; /* PaX: fix it one day */
92548+ atomic64_unchecked_t child_count;
92549
92550 /*
92551 * These are the total time in nanoseconds that the event
92552@@ -395,8 +395,8 @@ struct perf_event {
92553 * These accumulate total time (in nanoseconds) that children
92554 * events have been enabled and running, respectively.
92555 */
92556- atomic64_t child_total_time_enabled;
92557- atomic64_t child_total_time_running;
92558+ atomic64_unchecked_t child_total_time_enabled;
92559+ atomic64_unchecked_t child_total_time_running;
92560
92561 /*
92562 * Protect attach/detach and child_list:
92563@@ -752,7 +752,7 @@ static inline void perf_callchain_store(struct perf_callchain_entry *entry, u64
92564 entry->ip[entry->nr++] = ip;
92565 }
92566
92567-extern int sysctl_perf_event_paranoid;
92568+extern int sysctl_perf_event_legitimately_concerned;
92569 extern int sysctl_perf_event_mlock;
92570 extern int sysctl_perf_event_sample_rate;
92571 extern int sysctl_perf_cpu_time_max_percent;
92572@@ -767,19 +767,24 @@ extern int perf_cpu_time_max_percent_handler(struct ctl_table *table, int write,
92573 loff_t *ppos);
92574
92575
92576+static inline bool perf_paranoid_any(void)
92577+{
92578+ return sysctl_perf_event_legitimately_concerned > 2;
92579+}
92580+
92581 static inline bool perf_paranoid_tracepoint_raw(void)
92582 {
92583- return sysctl_perf_event_paranoid > -1;
92584+ return sysctl_perf_event_legitimately_concerned > -1;
92585 }
92586
92587 static inline bool perf_paranoid_cpu(void)
92588 {
92589- return sysctl_perf_event_paranoid > 0;
92590+ return sysctl_perf_event_legitimately_concerned > 0;
92591 }
92592
92593 static inline bool perf_paranoid_kernel(void)
92594 {
92595- return sysctl_perf_event_paranoid > 1;
92596+ return sysctl_perf_event_legitimately_concerned > 1;
92597 }
92598
92599 extern void perf_event_init(void);
92600@@ -912,7 +917,7 @@ struct perf_pmu_events_attr {
92601 struct device_attribute attr;
92602 u64 id;
92603 const char *event_str;
92604-};
92605+} __do_const;
92606
92607 ssize_t perf_event_sysfs_show(struct device *dev, struct device_attribute *attr,
92608 char *page);
92609diff --git a/include/linux/pid_namespace.h b/include/linux/pid_namespace.h
92610index 918b117..7af374b7 100644
92611--- a/include/linux/pid_namespace.h
92612+++ b/include/linux/pid_namespace.h
92613@@ -45,7 +45,7 @@ struct pid_namespace {
92614 int hide_pid;
92615 int reboot; /* group exit code if this pidns was rebooted */
92616 struct ns_common ns;
92617-};
92618+} __randomize_layout;
92619
92620 extern struct pid_namespace init_pid_ns;
92621
92622diff --git a/include/linux/pipe_fs_i.h b/include/linux/pipe_fs_i.h
92623index eb8b8ac..62649e1 100644
92624--- a/include/linux/pipe_fs_i.h
92625+++ b/include/linux/pipe_fs_i.h
92626@@ -47,10 +47,10 @@ struct pipe_inode_info {
92627 struct mutex mutex;
92628 wait_queue_head_t wait;
92629 unsigned int nrbufs, curbuf, buffers;
92630- unsigned int readers;
92631- unsigned int writers;
92632- unsigned int files;
92633- unsigned int waiting_writers;
92634+ atomic_t readers;
92635+ atomic_t writers;
92636+ atomic_t files;
92637+ atomic_t waiting_writers;
92638 unsigned int r_counter;
92639 unsigned int w_counter;
92640 struct page *tmp_page;
92641diff --git a/include/linux/pm.h b/include/linux/pm.h
92642index e2f1be6..78a0506 100644
92643--- a/include/linux/pm.h
92644+++ b/include/linux/pm.h
92645@@ -608,6 +608,7 @@ struct dev_pm_domain {
92646 struct dev_pm_ops ops;
92647 void (*detach)(struct device *dev, bool power_off);
92648 };
92649+typedef struct dev_pm_domain __no_const dev_pm_domain_no_const;
92650
92651 /*
92652 * The PM_EVENT_ messages are also used by drivers implementing the legacy
92653diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h
92654index 080e778..cbdaef7 100644
92655--- a/include/linux/pm_domain.h
92656+++ b/include/linux/pm_domain.h
92657@@ -39,11 +39,11 @@ struct gpd_dev_ops {
92658 int (*save_state)(struct device *dev);
92659 int (*restore_state)(struct device *dev);
92660 bool (*active_wakeup)(struct device *dev);
92661-};
92662+} __no_const;
92663
92664 struct gpd_cpuidle_data {
92665 unsigned int saved_exit_latency;
92666- struct cpuidle_state *idle_state;
92667+ cpuidle_state_no_const *idle_state;
92668 };
92669
92670 struct generic_pm_domain {
92671diff --git a/include/linux/pm_runtime.h b/include/linux/pm_runtime.h
92672index 30e84d4..22278b4 100644
92673--- a/include/linux/pm_runtime.h
92674+++ b/include/linux/pm_runtime.h
92675@@ -115,7 +115,7 @@ static inline bool pm_runtime_callbacks_present(struct device *dev)
92676
92677 static inline void pm_runtime_mark_last_busy(struct device *dev)
92678 {
92679- ACCESS_ONCE(dev->power.last_busy) = jiffies;
92680+ ACCESS_ONCE_RW(dev->power.last_busy) = jiffies;
92681 }
92682
92683 static inline bool pm_runtime_is_irq_safe(struct device *dev)
92684diff --git a/include/linux/pnp.h b/include/linux/pnp.h
92685index 6512e9c..ec27fa2 100644
92686--- a/include/linux/pnp.h
92687+++ b/include/linux/pnp.h
92688@@ -298,7 +298,7 @@ static inline void pnp_set_drvdata(struct pnp_dev *pdev, void *data)
92689 struct pnp_fixup {
92690 char id[7];
92691 void (*quirk_function) (struct pnp_dev * dev); /* fixup function */
92692-};
92693+} __do_const;
92694
92695 /* config parameters */
92696 #define PNP_CONFIG_NORMAL 0x0001
92697diff --git a/include/linux/poison.h b/include/linux/poison.h
92698index 2110a81..13a11bb 100644
92699--- a/include/linux/poison.h
92700+++ b/include/linux/poison.h
92701@@ -19,8 +19,8 @@
92702 * under normal circumstances, used to verify that nobody uses
92703 * non-initialized list entries.
92704 */
92705-#define LIST_POISON1 ((void *) 0x00100100 + POISON_POINTER_DELTA)
92706-#define LIST_POISON2 ((void *) 0x00200200 + POISON_POINTER_DELTA)
92707+#define LIST_POISON1 ((void *) (long)0xFFFFFF01)
92708+#define LIST_POISON2 ((void *) (long)0xFFFFFF02)
92709
92710 /********** include/linux/timer.h **********/
92711 /*
92712diff --git a/include/linux/power/smartreflex.h b/include/linux/power/smartreflex.h
92713index d8b187c3..9a9257a 100644
92714--- a/include/linux/power/smartreflex.h
92715+++ b/include/linux/power/smartreflex.h
92716@@ -238,7 +238,7 @@ struct omap_sr_class_data {
92717 int (*notify)(struct omap_sr *sr, u32 status);
92718 u8 notify_flags;
92719 u8 class_type;
92720-};
92721+} __do_const;
92722
92723 /**
92724 * struct omap_sr_nvalue_table - Smartreflex n-target value info
92725diff --git a/include/linux/ppp-comp.h b/include/linux/ppp-comp.h
92726index 4ea1d37..80f4b33 100644
92727--- a/include/linux/ppp-comp.h
92728+++ b/include/linux/ppp-comp.h
92729@@ -84,7 +84,7 @@ struct compressor {
92730 struct module *owner;
92731 /* Extra skb space needed by the compressor algorithm */
92732 unsigned int comp_extra;
92733-};
92734+} __do_const;
92735
92736 /*
92737 * The return value from decompress routine is the length of the
92738diff --git a/include/linux/preempt.h b/include/linux/preempt.h
92739index de83b4e..c4b997d 100644
92740--- a/include/linux/preempt.h
92741+++ b/include/linux/preempt.h
92742@@ -27,11 +27,16 @@ extern void preempt_count_sub(int val);
92743 #define preempt_count_dec_and_test() __preempt_count_dec_and_test()
92744 #endif
92745
92746+#define raw_preempt_count_add(val) __preempt_count_add(val)
92747+#define raw_preempt_count_sub(val) __preempt_count_sub(val)
92748+
92749 #define __preempt_count_inc() __preempt_count_add(1)
92750 #define __preempt_count_dec() __preempt_count_sub(1)
92751
92752 #define preempt_count_inc() preempt_count_add(1)
92753+#define raw_preempt_count_inc() raw_preempt_count_add(1)
92754 #define preempt_count_dec() preempt_count_sub(1)
92755+#define raw_preempt_count_dec() raw_preempt_count_sub(1)
92756
92757 #ifdef CONFIG_PREEMPT_COUNT
92758
92759@@ -41,6 +46,12 @@ do { \
92760 barrier(); \
92761 } while (0)
92762
92763+#define raw_preempt_disable() \
92764+do { \
92765+ raw_preempt_count_inc(); \
92766+ barrier(); \
92767+} while (0)
92768+
92769 #define sched_preempt_enable_no_resched() \
92770 do { \
92771 barrier(); \
92772@@ -49,6 +60,12 @@ do { \
92773
92774 #define preempt_enable_no_resched() sched_preempt_enable_no_resched()
92775
92776+#define raw_preempt_enable_no_resched() \
92777+do { \
92778+ barrier(); \
92779+ raw_preempt_count_dec(); \
92780+} while (0)
92781+
92782 #ifdef CONFIG_PREEMPT
92783 #define preempt_enable() \
92784 do { \
92785@@ -113,8 +130,10 @@ do { \
92786 * region.
92787 */
92788 #define preempt_disable() barrier()
92789+#define raw_preempt_disable() barrier()
92790 #define sched_preempt_enable_no_resched() barrier()
92791 #define preempt_enable_no_resched() barrier()
92792+#define raw_preempt_enable_no_resched() barrier()
92793 #define preempt_enable() barrier()
92794 #define preempt_check_resched() do { } while (0)
92795
92796@@ -128,11 +147,13 @@ do { \
92797 /*
92798 * Modules have no business playing preemption tricks.
92799 */
92800+#ifndef CONFIG_PAX_KERNEXEC
92801 #undef sched_preempt_enable_no_resched
92802 #undef preempt_enable_no_resched
92803 #undef preempt_enable_no_resched_notrace
92804 #undef preempt_check_resched
92805 #endif
92806+#endif
92807
92808 #define preempt_set_need_resched() \
92809 do { \
92810diff --git a/include/linux/printk.h b/include/linux/printk.h
92811index baa3f97..168cff1 100644
92812--- a/include/linux/printk.h
92813+++ b/include/linux/printk.h
92814@@ -121,6 +121,7 @@ void early_printk(const char *s, ...) { }
92815 #endif
92816
92817 typedef int(*printk_func_t)(const char *fmt, va_list args);
92818+extern int kptr_restrict;
92819
92820 #ifdef CONFIG_PRINTK
92821 asmlinkage __printf(5, 0)
92822@@ -156,7 +157,6 @@ extern bool printk_timed_ratelimit(unsigned long *caller_jiffies,
92823
92824 extern int printk_delay_msec;
92825 extern int dmesg_restrict;
92826-extern int kptr_restrict;
92827
92828 extern void wake_up_klogd(void);
92829
92830diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h
92831index b97bf2e..f14c92d4 100644
92832--- a/include/linux/proc_fs.h
92833+++ b/include/linux/proc_fs.h
92834@@ -17,8 +17,11 @@ extern void proc_flush_task(struct task_struct *);
92835 extern struct proc_dir_entry *proc_symlink(const char *,
92836 struct proc_dir_entry *, const char *);
92837 extern struct proc_dir_entry *proc_mkdir(const char *, struct proc_dir_entry *);
92838+extern struct proc_dir_entry *proc_mkdir_restrict(const char *, struct proc_dir_entry *);
92839 extern struct proc_dir_entry *proc_mkdir_data(const char *, umode_t,
92840 struct proc_dir_entry *, void *);
92841+extern struct proc_dir_entry *proc_mkdir_data_restrict(const char *, umode_t,
92842+ struct proc_dir_entry *, void *);
92843 extern struct proc_dir_entry *proc_mkdir_mode(const char *, umode_t,
92844 struct proc_dir_entry *);
92845
92846@@ -34,6 +37,19 @@ static inline struct proc_dir_entry *proc_create(
92847 return proc_create_data(name, mode, parent, proc_fops, NULL);
92848 }
92849
92850+static inline struct proc_dir_entry *proc_create_grsec(const char *name, umode_t mode,
92851+ struct proc_dir_entry *parent, const struct file_operations *proc_fops)
92852+{
92853+#ifdef CONFIG_GRKERNSEC_PROC_USER
92854+ return proc_create_data(name, S_IRUSR, parent, proc_fops, NULL);
92855+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
92856+ return proc_create_data(name, S_IRUSR | S_IRGRP, parent, proc_fops, NULL);
92857+#else
92858+ return proc_create_data(name, mode, parent, proc_fops, NULL);
92859+#endif
92860+}
92861+
92862+
92863 extern void proc_set_size(struct proc_dir_entry *, loff_t);
92864 extern void proc_set_user(struct proc_dir_entry *, kuid_t, kgid_t);
92865 extern void *PDE_DATA(const struct inode *);
92866@@ -56,8 +72,12 @@ static inline struct proc_dir_entry *proc_symlink(const char *name,
92867 struct proc_dir_entry *parent,const char *dest) { return NULL;}
92868 static inline struct proc_dir_entry *proc_mkdir(const char *name,
92869 struct proc_dir_entry *parent) {return NULL;}
92870+static inline struct proc_dir_entry *proc_mkdir_restrict(const char *name,
92871+ struct proc_dir_entry *parent) { return NULL; }
92872 static inline struct proc_dir_entry *proc_mkdir_data(const char *name,
92873 umode_t mode, struct proc_dir_entry *parent, void *data) { return NULL; }
92874+static inline struct proc_dir_entry *proc_mkdir_data_restrict(const char *name,
92875+ umode_t mode, struct proc_dir_entry *parent, void *data) { return NULL; }
92876 static inline struct proc_dir_entry *proc_mkdir_mode(const char *name,
92877 umode_t mode, struct proc_dir_entry *parent) { return NULL; }
92878 #define proc_create(name, mode, parent, proc_fops) ({NULL;})
92879@@ -79,7 +99,7 @@ struct net;
92880 static inline struct proc_dir_entry *proc_net_mkdir(
92881 struct net *net, const char *name, struct proc_dir_entry *parent)
92882 {
92883- return proc_mkdir_data(name, 0, parent, net);
92884+ return proc_mkdir_data_restrict(name, 0, parent, net);
92885 }
92886
92887 #endif /* _LINUX_PROC_FS_H */
92888diff --git a/include/linux/proc_ns.h b/include/linux/proc_ns.h
92889index 42dfc61..8113a99 100644
92890--- a/include/linux/proc_ns.h
92891+++ b/include/linux/proc_ns.h
92892@@ -16,7 +16,7 @@ struct proc_ns_operations {
92893 struct ns_common *(*get)(struct task_struct *task);
92894 void (*put)(struct ns_common *ns);
92895 int (*install)(struct nsproxy *nsproxy, struct ns_common *ns);
92896-};
92897+} __do_const __randomize_layout;
92898
92899 extern const struct proc_ns_operations netns_operations;
92900 extern const struct proc_ns_operations utsns_operations;
92901diff --git a/include/linux/quota.h b/include/linux/quota.h
92902index d534e8e..782e604 100644
92903--- a/include/linux/quota.h
92904+++ b/include/linux/quota.h
92905@@ -75,7 +75,7 @@ struct kqid { /* Type in which we store the quota identifier */
92906
92907 extern bool qid_eq(struct kqid left, struct kqid right);
92908 extern bool qid_lt(struct kqid left, struct kqid right);
92909-extern qid_t from_kqid(struct user_namespace *to, struct kqid qid);
92910+extern qid_t from_kqid(struct user_namespace *to, struct kqid qid) __intentional_overflow(-1);
92911 extern qid_t from_kqid_munged(struct user_namespace *to, struct kqid qid);
92912 extern bool qid_valid(struct kqid qid);
92913
92914diff --git a/include/linux/random.h b/include/linux/random.h
92915index b05856e..0a9f14e 100644
92916--- a/include/linux/random.h
92917+++ b/include/linux/random.h
92918@@ -9,9 +9,19 @@
92919 #include <uapi/linux/random.h>
92920
92921 extern void add_device_randomness(const void *, unsigned int);
92922+
92923+static inline void add_latent_entropy(void)
92924+{
92925+
92926+#ifdef LATENT_ENTROPY_PLUGIN
92927+ add_device_randomness((const void *)&latent_entropy, sizeof(latent_entropy));
92928+#endif
92929+
92930+}
92931+
92932 extern void add_input_randomness(unsigned int type, unsigned int code,
92933- unsigned int value);
92934-extern void add_interrupt_randomness(int irq, int irq_flags);
92935+ unsigned int value) __latent_entropy;
92936+extern void add_interrupt_randomness(int irq, int irq_flags) __latent_entropy;
92937
92938 extern void get_random_bytes(void *buf, int nbytes);
92939 extern void get_random_bytes_arch(void *buf, int nbytes);
92940@@ -22,10 +32,10 @@ extern int random_int_secret_init(void);
92941 extern const struct file_operations random_fops, urandom_fops;
92942 #endif
92943
92944-unsigned int get_random_int(void);
92945+unsigned int __intentional_overflow(-1) get_random_int(void);
92946 unsigned long randomize_range(unsigned long start, unsigned long end, unsigned long len);
92947
92948-u32 prandom_u32(void);
92949+u32 prandom_u32(void) __intentional_overflow(-1);
92950 void prandom_bytes(void *buf, size_t nbytes);
92951 void prandom_seed(u32 seed);
92952 void prandom_reseed_late(void);
92953@@ -37,6 +47,11 @@ struct rnd_state {
92954 u32 prandom_u32_state(struct rnd_state *state);
92955 void prandom_bytes_state(struct rnd_state *state, void *buf, size_t nbytes);
92956
92957+static inline unsigned long __intentional_overflow(-1) pax_get_random_long(void)
92958+{
92959+ return prandom_u32() + (sizeof(long) > 4 ? (unsigned long)prandom_u32() << 32 : 0);
92960+}
92961+
92962 /**
92963 * prandom_u32_max - returns a pseudo-random number in interval [0, ep_ro)
92964 * @ep_ro: right open interval endpoint
92965@@ -49,7 +64,7 @@ void prandom_bytes_state(struct rnd_state *state, void *buf, size_t nbytes);
92966 *
92967 * Returns: pseudo-random number in interval [0, ep_ro)
92968 */
92969-static inline u32 prandom_u32_max(u32 ep_ro)
92970+static inline u32 __intentional_overflow(-1) prandom_u32_max(u32 ep_ro)
92971 {
92972 return (u32)(((u64) prandom_u32() * ep_ro) >> 32);
92973 }
92974diff --git a/include/linux/rbtree_augmented.h b/include/linux/rbtree_augmented.h
92975index 378c5ee..aa84a47 100644
92976--- a/include/linux/rbtree_augmented.h
92977+++ b/include/linux/rbtree_augmented.h
92978@@ -90,7 +90,9 @@ rbname ## _rotate(struct rb_node *rb_old, struct rb_node *rb_new) \
92979 old->rbaugmented = rbcompute(old); \
92980 } \
92981 rbstatic const struct rb_augment_callbacks rbname = { \
92982- rbname ## _propagate, rbname ## _copy, rbname ## _rotate \
92983+ .propagate = rbname ## _propagate, \
92984+ .copy = rbname ## _copy, \
92985+ .rotate = rbname ## _rotate \
92986 };
92987
92988
92989diff --git a/include/linux/rculist.h b/include/linux/rculist.h
92990index a18b16f..2683096 100644
92991--- a/include/linux/rculist.h
92992+++ b/include/linux/rculist.h
92993@@ -29,8 +29,8 @@
92994 */
92995 static inline void INIT_LIST_HEAD_RCU(struct list_head *list)
92996 {
92997- ACCESS_ONCE(list->next) = list;
92998- ACCESS_ONCE(list->prev) = list;
92999+ ACCESS_ONCE_RW(list->next) = list;
93000+ ACCESS_ONCE_RW(list->prev) = list;
93001 }
93002
93003 /*
93004@@ -59,6 +59,9 @@ void __list_add_rcu(struct list_head *new,
93005 struct list_head *prev, struct list_head *next);
93006 #endif
93007
93008+void __pax_list_add_rcu(struct list_head *new,
93009+ struct list_head *prev, struct list_head *next);
93010+
93011 /**
93012 * list_add_rcu - add a new entry to rcu-protected list
93013 * @new: new entry to be added
93014@@ -80,6 +83,11 @@ static inline void list_add_rcu(struct list_head *new, struct list_head *head)
93015 __list_add_rcu(new, head, head->next);
93016 }
93017
93018+static inline void pax_list_add_rcu(struct list_head *new, struct list_head *head)
93019+{
93020+ __pax_list_add_rcu(new, head, head->next);
93021+}
93022+
93023 /**
93024 * list_add_tail_rcu - add a new entry to rcu-protected list
93025 * @new: new entry to be added
93026@@ -102,6 +110,12 @@ static inline void list_add_tail_rcu(struct list_head *new,
93027 __list_add_rcu(new, head->prev, head);
93028 }
93029
93030+static inline void pax_list_add_tail_rcu(struct list_head *new,
93031+ struct list_head *head)
93032+{
93033+ __pax_list_add_rcu(new, head->prev, head);
93034+}
93035+
93036 /**
93037 * list_del_rcu - deletes entry from list without re-initialization
93038 * @entry: the element to delete from the list.
93039@@ -132,6 +146,8 @@ static inline void list_del_rcu(struct list_head *entry)
93040 entry->prev = LIST_POISON2;
93041 }
93042
93043+extern void pax_list_del_rcu(struct list_head *entry);
93044+
93045 /**
93046 * hlist_del_init_rcu - deletes entry from hash list with re-initialization
93047 * @n: the element to delete from the hash list.
93048diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
93049index 7809749..1cd9315 100644
93050--- a/include/linux/rcupdate.h
93051+++ b/include/linux/rcupdate.h
93052@@ -333,7 +333,7 @@ extern struct srcu_struct tasks_rcu_exit_srcu;
93053 do { \
93054 rcu_all_qs(); \
93055 if (ACCESS_ONCE((t)->rcu_tasks_holdout)) \
93056- ACCESS_ONCE((t)->rcu_tasks_holdout) = false; \
93057+ ACCESS_ONCE_RW((t)->rcu_tasks_holdout) = false; \
93058 } while (0)
93059 #else /* #ifdef CONFIG_TASKS_RCU */
93060 #define TASKS_RCU(x) do { } while (0)
93061diff --git a/include/linux/reboot.h b/include/linux/reboot.h
93062index 67fc8fc..a90f7d8 100644
93063--- a/include/linux/reboot.h
93064+++ b/include/linux/reboot.h
93065@@ -47,9 +47,9 @@ extern void do_kernel_restart(char *cmd);
93066 */
93067
93068 extern void migrate_to_reboot_cpu(void);
93069-extern void machine_restart(char *cmd);
93070-extern void machine_halt(void);
93071-extern void machine_power_off(void);
93072+extern void machine_restart(char *cmd) __noreturn;
93073+extern void machine_halt(void) __noreturn;
93074+extern void machine_power_off(void) __noreturn;
93075
93076 extern void machine_shutdown(void);
93077 struct pt_regs;
93078@@ -60,9 +60,9 @@ extern void machine_crash_shutdown(struct pt_regs *);
93079 */
93080
93081 extern void kernel_restart_prepare(char *cmd);
93082-extern void kernel_restart(char *cmd);
93083-extern void kernel_halt(void);
93084-extern void kernel_power_off(void);
93085+extern void kernel_restart(char *cmd) __noreturn;
93086+extern void kernel_halt(void) __noreturn;
93087+extern void kernel_power_off(void) __noreturn;
93088
93089 extern int C_A_D; /* for sysctl */
93090 void ctrl_alt_del(void);
93091@@ -76,7 +76,7 @@ extern int orderly_poweroff(bool force);
93092 * Emergency restart, callable from an interrupt handler.
93093 */
93094
93095-extern void emergency_restart(void);
93096+extern void emergency_restart(void) __noreturn;
93097 #include <asm/emergency-restart.h>
93098
93099 #endif /* _LINUX_REBOOT_H */
93100diff --git a/include/linux/regset.h b/include/linux/regset.h
93101index 8e0c9fe..ac4d221 100644
93102--- a/include/linux/regset.h
93103+++ b/include/linux/regset.h
93104@@ -161,7 +161,8 @@ struct user_regset {
93105 unsigned int align;
93106 unsigned int bias;
93107 unsigned int core_note_type;
93108-};
93109+} __do_const;
93110+typedef struct user_regset __no_const user_regset_no_const;
93111
93112 /**
93113 * struct user_regset_view - available regsets
93114diff --git a/include/linux/relay.h b/include/linux/relay.h
93115index d7c8359..818daf5 100644
93116--- a/include/linux/relay.h
93117+++ b/include/linux/relay.h
93118@@ -157,7 +157,7 @@ struct rchan_callbacks
93119 * The callback should return 0 if successful, negative if not.
93120 */
93121 int (*remove_buf_file)(struct dentry *dentry);
93122-};
93123+} __no_const;
93124
93125 /*
93126 * CONFIG_RELAY kernel API, kernel/relay.c
93127diff --git a/include/linux/rio.h b/include/linux/rio.h
93128index 6bda06f..bf39a9b 100644
93129--- a/include/linux/rio.h
93130+++ b/include/linux/rio.h
93131@@ -358,7 +358,7 @@ struct rio_ops {
93132 int (*map_inb)(struct rio_mport *mport, dma_addr_t lstart,
93133 u64 rstart, u32 size, u32 flags);
93134 void (*unmap_inb)(struct rio_mport *mport, dma_addr_t lstart);
93135-};
93136+} __no_const;
93137
93138 #define RIO_RESOURCE_MEM 0x00000100
93139 #define RIO_RESOURCE_DOORBELL 0x00000200
93140diff --git a/include/linux/rmap.h b/include/linux/rmap.h
93141index c4c559a..6ba9a26 100644
93142--- a/include/linux/rmap.h
93143+++ b/include/linux/rmap.h
93144@@ -154,8 +154,8 @@ static inline void anon_vma_unlock_read(struct anon_vma *anon_vma)
93145 void anon_vma_init(void); /* create anon_vma_cachep */
93146 int anon_vma_prepare(struct vm_area_struct *);
93147 void unlink_anon_vmas(struct vm_area_struct *);
93148-int anon_vma_clone(struct vm_area_struct *, struct vm_area_struct *);
93149-int anon_vma_fork(struct vm_area_struct *, struct vm_area_struct *);
93150+int anon_vma_clone(struct vm_area_struct *, const struct vm_area_struct *);
93151+int anon_vma_fork(struct vm_area_struct *, const struct vm_area_struct *);
93152
93153 static inline void anon_vma_merge(struct vm_area_struct *vma,
93154 struct vm_area_struct *next)
93155diff --git a/include/linux/scatterlist.h b/include/linux/scatterlist.h
93156index ed8f9e70..2e627f2 100644
93157--- a/include/linux/scatterlist.h
93158+++ b/include/linux/scatterlist.h
93159@@ -1,6 +1,7 @@
93160 #ifndef _LINUX_SCATTERLIST_H
93161 #define _LINUX_SCATTERLIST_H
93162
93163+#include <linux/sched.h>
93164 #include <linux/string.h>
93165 #include <linux/bug.h>
93166 #include <linux/mm.h>
93167@@ -111,10 +112,17 @@ static inline struct page *sg_page(struct scatterlist *sg)
93168 static inline void sg_set_buf(struct scatterlist *sg, const void *buf,
93169 unsigned int buflen)
93170 {
93171+ const void *realbuf = buf;
93172+
93173+#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
93174+ if (object_starts_on_stack(buf))
93175+ realbuf = buf - current->stack + current->lowmem_stack;
93176+#endif
93177+
93178 #ifdef CONFIG_DEBUG_SG
93179- BUG_ON(!virt_addr_valid(buf));
93180+ BUG_ON(!virt_addr_valid(realbuf));
93181 #endif
93182- sg_set_page(sg, virt_to_page(buf), buflen, offset_in_page(buf));
93183+ sg_set_page(sg, virt_to_page(realbuf), buflen, offset_in_page(realbuf));
93184 }
93185
93186 /*
93187diff --git a/include/linux/sched.h b/include/linux/sched.h
93188index 51348f7..8c8b0ba 100644
93189--- a/include/linux/sched.h
93190+++ b/include/linux/sched.h
93191@@ -133,6 +133,7 @@ struct fs_struct;
93192 struct perf_event_context;
93193 struct blk_plug;
93194 struct filename;
93195+struct linux_binprm;
93196
93197 #define VMACACHE_BITS 2
93198 #define VMACACHE_SIZE (1U << VMACACHE_BITS)
93199@@ -420,7 +421,7 @@ extern char __sched_text_start[], __sched_text_end[];
93200 extern int in_sched_functions(unsigned long addr);
93201
93202 #define MAX_SCHEDULE_TIMEOUT LONG_MAX
93203-extern signed long schedule_timeout(signed long timeout);
93204+extern signed long schedule_timeout(signed long timeout) __intentional_overflow(-1);
93205 extern signed long schedule_timeout_interruptible(signed long timeout);
93206 extern signed long schedule_timeout_killable(signed long timeout);
93207 extern signed long schedule_timeout_uninterruptible(signed long timeout);
93208@@ -438,6 +439,19 @@ struct nsproxy;
93209 struct user_namespace;
93210
93211 #ifdef CONFIG_MMU
93212+
93213+#ifdef CONFIG_GRKERNSEC_RAND_THREADSTACK
93214+extern unsigned long gr_rand_threadstack_offset(const struct mm_struct *mm, const struct file *filp, unsigned long flags);
93215+#else
93216+static inline unsigned long gr_rand_threadstack_offset(const struct mm_struct *mm, const struct file *filp, unsigned long flags)
93217+{
93218+ return 0;
93219+}
93220+#endif
93221+
93222+extern bool check_heap_stack_gap(const struct vm_area_struct *vma, unsigned long addr, unsigned long len, unsigned long offset);
93223+extern unsigned long skip_heap_stack_gap(const struct vm_area_struct *vma, unsigned long len, unsigned long offset);
93224+
93225 extern void arch_pick_mmap_layout(struct mm_struct *mm);
93226 extern unsigned long
93227 arch_get_unmapped_area(struct file *, unsigned long, unsigned long,
93228@@ -736,6 +750,17 @@ struct signal_struct {
93229 #ifdef CONFIG_TASKSTATS
93230 struct taskstats *stats;
93231 #endif
93232+
93233+#ifdef CONFIG_GRKERNSEC
93234+ u32 curr_ip;
93235+ u32 saved_ip;
93236+ u32 gr_saddr;
93237+ u32 gr_daddr;
93238+ u16 gr_sport;
93239+ u16 gr_dport;
93240+ u8 used_accept:1;
93241+#endif
93242+
93243 #ifdef CONFIG_AUDIT
93244 unsigned audit_tty;
93245 unsigned audit_tty_log_passwd;
93246@@ -762,7 +787,7 @@ struct signal_struct {
93247 struct mutex cred_guard_mutex; /* guard against foreign influences on
93248 * credential calculations
93249 * (notably. ptrace) */
93250-};
93251+} __randomize_layout;
93252
93253 /*
93254 * Bits in flags field of signal_struct.
93255@@ -815,6 +840,14 @@ struct user_struct {
93256 struct key *session_keyring; /* UID's default session keyring */
93257 #endif
93258
93259+#ifdef CONFIG_GRKERNSEC_KERN_LOCKOUT
93260+ unsigned char kernel_banned;
93261+#endif
93262+#ifdef CONFIG_GRKERNSEC_BRUTE
93263+ unsigned char suid_banned;
93264+ unsigned long suid_ban_expires;
93265+#endif
93266+
93267 /* Hash table maintenance information */
93268 struct hlist_node uidhash_node;
93269 kuid_t uid;
93270@@ -822,7 +855,7 @@ struct user_struct {
93271 #ifdef CONFIG_PERF_EVENTS
93272 atomic_long_t locked_vm;
93273 #endif
93274-};
93275+} __randomize_layout;
93276
93277 extern int uids_sysfs_init(void);
93278
93279@@ -1286,6 +1319,9 @@ enum perf_event_task_context {
93280 struct task_struct {
93281 volatile long state; /* -1 unrunnable, 0 runnable, >0 stopped */
93282 void *stack;
93283+#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
93284+ void *lowmem_stack;
93285+#endif
93286 atomic_t usage;
93287 unsigned int flags; /* per process flags, defined below */
93288 unsigned int ptrace;
93289@@ -1419,8 +1455,8 @@ struct task_struct {
93290 struct list_head thread_node;
93291
93292 struct completion *vfork_done; /* for vfork() */
93293- int __user *set_child_tid; /* CLONE_CHILD_SETTID */
93294- int __user *clear_child_tid; /* CLONE_CHILD_CLEARTID */
93295+ pid_t __user *set_child_tid; /* CLONE_CHILD_SETTID */
93296+ pid_t __user *clear_child_tid; /* CLONE_CHILD_CLEARTID */
93297
93298 cputime_t utime, stime, utimescaled, stimescaled;
93299 cputime_t gtime;
93300@@ -1445,11 +1481,6 @@ struct task_struct {
93301 struct task_cputime cputime_expires;
93302 struct list_head cpu_timers[3];
93303
93304-/* process credentials */
93305- const struct cred __rcu *real_cred; /* objective and real subjective task
93306- * credentials (COW) */
93307- const struct cred __rcu *cred; /* effective (overridable) subjective task
93308- * credentials (COW) */
93309 char comm[TASK_COMM_LEN]; /* executable name excluding path
93310 - access with [gs]et_task_comm (which lock
93311 it with task_lock())
93312@@ -1467,6 +1498,10 @@ struct task_struct {
93313 #endif
93314 /* CPU-specific state of this task */
93315 struct thread_struct thread;
93316+/* thread_info moved to task_struct */
93317+#ifdef CONFIG_X86
93318+ struct thread_info tinfo;
93319+#endif
93320 /* filesystem information */
93321 struct fs_struct *fs;
93322 /* open file information */
93323@@ -1541,6 +1576,10 @@ struct task_struct {
93324 gfp_t lockdep_reclaim_gfp;
93325 #endif
93326
93327+/* process credentials */
93328+ const struct cred __rcu *real_cred; /* objective and real subjective task
93329+ * credentials (COW) */
93330+
93331 /* journalling filesystem info */
93332 void *journal_info;
93333
93334@@ -1579,6 +1618,10 @@ struct task_struct {
93335 /* cg_list protected by css_set_lock and tsk->alloc_lock */
93336 struct list_head cg_list;
93337 #endif
93338+
93339+ const struct cred __rcu *cred; /* effective (overridable) subjective task
93340+ * credentials (COW) */
93341+
93342 #ifdef CONFIG_FUTEX
93343 struct robust_list_head __user *robust_list;
93344 #ifdef CONFIG_COMPAT
93345@@ -1690,7 +1733,7 @@ struct task_struct {
93346 * Number of functions that haven't been traced
93347 * because of depth overrun.
93348 */
93349- atomic_t trace_overrun;
93350+ atomic_unchecked_t trace_overrun;
93351 /* Pause for the tracing */
93352 atomic_t tracing_graph_pause;
93353 #endif
93354@@ -1718,7 +1761,78 @@ struct task_struct {
93355 #ifdef CONFIG_DEBUG_ATOMIC_SLEEP
93356 unsigned long task_state_change;
93357 #endif
93358-};
93359+
93360+#ifdef CONFIG_GRKERNSEC
93361+ /* grsecurity */
93362+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
93363+ u64 exec_id;
93364+#endif
93365+#ifdef CONFIG_GRKERNSEC_SETXID
93366+ const struct cred *delayed_cred;
93367+#endif
93368+ struct dentry *gr_chroot_dentry;
93369+ struct acl_subject_label *acl;
93370+ struct acl_subject_label *tmpacl;
93371+ struct acl_role_label *role;
93372+ struct file *exec_file;
93373+ unsigned long brute_expires;
93374+ u16 acl_role_id;
93375+ u8 inherited;
93376+ /* is this the task that authenticated to the special role */
93377+ u8 acl_sp_role;
93378+ u8 is_writable;
93379+ u8 brute;
93380+ u8 gr_is_chrooted;
93381+#endif
93382+
93383+} __randomize_layout;
93384+
93385+#define MF_PAX_PAGEEXEC 0x01000000 /* Paging based non-executable pages */
93386+#define MF_PAX_EMUTRAMP 0x02000000 /* Emulate trampolines */
93387+#define MF_PAX_MPROTECT 0x04000000 /* Restrict mprotect() */
93388+#define MF_PAX_RANDMMAP 0x08000000 /* Randomize mmap() base */
93389+/*#define MF_PAX_RANDEXEC 0x10000000*/ /* Randomize ET_EXEC base */
93390+#define MF_PAX_SEGMEXEC 0x20000000 /* Segmentation based non-executable pages */
93391+
93392+#ifdef CONFIG_PAX_SOFTMODE
93393+extern int pax_softmode;
93394+#endif
93395+
93396+extern int pax_check_flags(unsigned long *);
93397+#define PAX_PARSE_FLAGS_FALLBACK (~0UL)
93398+
93399+/* if tsk != current then task_lock must be held on it */
93400+#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)
93401+static inline unsigned long pax_get_flags(struct task_struct *tsk)
93402+{
93403+ if (likely(tsk->mm))
93404+ return tsk->mm->pax_flags;
93405+ else
93406+ return 0UL;
93407+}
93408+
93409+/* if tsk != current then task_lock must be held on it */
93410+static inline long pax_set_flags(struct task_struct *tsk, unsigned long flags)
93411+{
93412+ if (likely(tsk->mm)) {
93413+ tsk->mm->pax_flags = flags;
93414+ return 0;
93415+ }
93416+ return -EINVAL;
93417+}
93418+#endif
93419+
93420+#ifdef CONFIG_PAX_HAVE_ACL_FLAGS
93421+extern void pax_set_initial_flags(struct linux_binprm *bprm);
93422+#elif defined(CONFIG_PAX_HOOK_ACL_FLAGS)
93423+extern void (*pax_set_initial_flags_func)(struct linux_binprm *bprm);
93424+#endif
93425+
93426+struct path;
93427+extern char *pax_get_path(const struct path *path, char *buf, int buflen);
93428+extern void pax_report_fault(struct pt_regs *regs, void *pc, void *sp);
93429+extern void pax_report_insns(struct pt_regs *regs, void *pc, void *sp);
93430+extern void pax_report_refcount_overflow(struct pt_regs *regs);
93431
93432 /* Future-safe accessor for struct task_struct's cpus_allowed. */
93433 #define tsk_cpus_allowed(tsk) (&(tsk)->cpus_allowed)
93434@@ -1801,7 +1915,7 @@ struct pid_namespace;
93435 pid_t __task_pid_nr_ns(struct task_struct *task, enum pid_type type,
93436 struct pid_namespace *ns);
93437
93438-static inline pid_t task_pid_nr(struct task_struct *tsk)
93439+static inline pid_t task_pid_nr(const struct task_struct *tsk)
93440 {
93441 return tsk->pid;
93442 }
93443@@ -2169,6 +2283,25 @@ extern u64 sched_clock_cpu(int cpu);
93444
93445 extern void sched_clock_init(void);
93446
93447+#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
93448+static inline void populate_stack(void)
93449+{
93450+ struct task_struct *curtask = current;
93451+ int c;
93452+ int *ptr = curtask->stack;
93453+ int *end = curtask->stack + THREAD_SIZE;
93454+
93455+ while (ptr < end) {
93456+ c = *(volatile int *)ptr;
93457+ ptr += PAGE_SIZE/sizeof(int);
93458+ }
93459+}
93460+#else
93461+static inline void populate_stack(void)
93462+{
93463+}
93464+#endif
93465+
93466 #ifndef CONFIG_HAVE_UNSTABLE_SCHED_CLOCK
93467 static inline void sched_clock_tick(void)
93468 {
93469@@ -2302,7 +2435,9 @@ void yield(void);
93470 extern struct exec_domain default_exec_domain;
93471
93472 union thread_union {
93473+#ifndef CONFIG_X86
93474 struct thread_info thread_info;
93475+#endif
93476 unsigned long stack[THREAD_SIZE/sizeof(long)];
93477 };
93478
93479@@ -2335,6 +2470,7 @@ extern struct pid_namespace init_pid_ns;
93480 */
93481
93482 extern struct task_struct *find_task_by_vpid(pid_t nr);
93483+extern struct task_struct *find_task_by_vpid_unrestricted(pid_t nr);
93484 extern struct task_struct *find_task_by_pid_ns(pid_t nr,
93485 struct pid_namespace *ns);
93486
93487@@ -2499,7 +2635,7 @@ extern void __cleanup_sighand(struct sighand_struct *);
93488 extern void exit_itimers(struct signal_struct *);
93489 extern void flush_itimer_signals(void);
93490
93491-extern void do_group_exit(int);
93492+extern __noreturn void do_group_exit(int);
93493
93494 extern int do_execve(struct filename *,
93495 const char __user * const __user *,
93496@@ -2720,9 +2856,9 @@ static inline unsigned long *end_of_stack(struct task_struct *p)
93497 #define task_stack_end_corrupted(task) \
93498 (*(end_of_stack(task)) != STACK_END_MAGIC)
93499
93500-static inline int object_is_on_stack(void *obj)
93501+static inline int object_starts_on_stack(const void *obj)
93502 {
93503- void *stack = task_stack_page(current);
93504+ const void *stack = task_stack_page(current);
93505
93506 return (obj >= stack) && (obj < (stack + THREAD_SIZE));
93507 }
93508diff --git a/include/linux/sched/sysctl.h b/include/linux/sched/sysctl.h
93509index 596a0e0..bea77ec 100644
93510--- a/include/linux/sched/sysctl.h
93511+++ b/include/linux/sched/sysctl.h
93512@@ -34,6 +34,7 @@ enum { sysctl_hung_task_timeout_secs = 0 };
93513 #define DEFAULT_MAX_MAP_COUNT (USHRT_MAX - MAPCOUNT_ELF_CORE_MARGIN)
93514
93515 extern int sysctl_max_map_count;
93516+extern unsigned long sysctl_heap_stack_gap;
93517
93518 extern unsigned int sysctl_sched_latency;
93519 extern unsigned int sysctl_sched_min_granularity;
93520diff --git a/include/linux/security.h b/include/linux/security.h
93521index a1b7dbd..036f47f 100644
93522--- a/include/linux/security.h
93523+++ b/include/linux/security.h
93524@@ -27,6 +27,7 @@
93525 #include <linux/slab.h>
93526 #include <linux/err.h>
93527 #include <linux/string.h>
93528+#include <linux/grsecurity.h>
93529
93530 struct linux_binprm;
93531 struct cred;
93532@@ -116,8 +117,6 @@ struct seq_file;
93533
93534 extern int cap_netlink_send(struct sock *sk, struct sk_buff *skb);
93535
93536-void reset_security_ops(void);
93537-
93538 #ifdef CONFIG_MMU
93539 extern unsigned long mmap_min_addr;
93540 extern unsigned long dac_mmap_min_addr;
93541@@ -1756,7 +1755,7 @@ struct security_operations {
93542 struct audit_context *actx);
93543 void (*audit_rule_free) (void *lsmrule);
93544 #endif /* CONFIG_AUDIT */
93545-};
93546+} __randomize_layout;
93547
93548 /* prototypes */
93549 extern int security_init(void);
93550diff --git a/include/linux/semaphore.h b/include/linux/semaphore.h
93551index dc368b8..e895209 100644
93552--- a/include/linux/semaphore.h
93553+++ b/include/linux/semaphore.h
93554@@ -37,7 +37,7 @@ static inline void sema_init(struct semaphore *sem, int val)
93555 }
93556
93557 extern void down(struct semaphore *sem);
93558-extern int __must_check down_interruptible(struct semaphore *sem);
93559+extern int __must_check down_interruptible(struct semaphore *sem) __intentional_overflow(-1);
93560 extern int __must_check down_killable(struct semaphore *sem);
93561 extern int __must_check down_trylock(struct semaphore *sem);
93562 extern int __must_check down_timeout(struct semaphore *sem, long jiffies);
93563diff --git a/include/linux/seq_file.h b/include/linux/seq_file.h
93564index afbb1fd..e1d205d 100644
93565--- a/include/linux/seq_file.h
93566+++ b/include/linux/seq_file.h
93567@@ -27,6 +27,9 @@ struct seq_file {
93568 struct mutex lock;
93569 const struct seq_operations *op;
93570 int poll_event;
93571+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
93572+ u64 exec_id;
93573+#endif
93574 #ifdef CONFIG_USER_NS
93575 struct user_namespace *user_ns;
93576 #endif
93577@@ -39,6 +42,7 @@ struct seq_operations {
93578 void * (*next) (struct seq_file *m, void *v, loff_t *pos);
93579 int (*show) (struct seq_file *m, void *v);
93580 };
93581+typedef struct seq_operations __no_const seq_operations_no_const;
93582
93583 #define SEQ_SKIP 1
93584
93585@@ -111,6 +115,7 @@ void seq_pad(struct seq_file *m, char c);
93586
93587 char *mangle_path(char *s, const char *p, const char *esc);
93588 int seq_open(struct file *, const struct seq_operations *);
93589+int seq_open_restrict(struct file *, const struct seq_operations *);
93590 ssize_t seq_read(struct file *, char __user *, size_t, loff_t *);
93591 loff_t seq_lseek(struct file *, loff_t, int);
93592 int seq_release(struct inode *, struct file *);
93593@@ -128,6 +133,7 @@ int seq_path_root(struct seq_file *m, const struct path *path,
93594 const struct path *root, const char *esc);
93595
93596 int single_open(struct file *, int (*)(struct seq_file *, void *), void *);
93597+int single_open_restrict(struct file *, int (*)(struct seq_file *, void *), void *);
93598 int single_open_size(struct file *, int (*)(struct seq_file *, void *), void *, size_t);
93599 int single_release(struct inode *, struct file *);
93600 void *__seq_open_private(struct file *, const struct seq_operations *, int);
93601diff --git a/include/linux/shm.h b/include/linux/shm.h
93602index 6fb8016..ab4465e 100644
93603--- a/include/linux/shm.h
93604+++ b/include/linux/shm.h
93605@@ -22,6 +22,10 @@ struct shmid_kernel /* private to the kernel */
93606 /* The task created the shm object. NULL if the task is dead. */
93607 struct task_struct *shm_creator;
93608 struct list_head shm_clist; /* list by creator */
93609+#ifdef CONFIG_GRKERNSEC
93610+ u64 shm_createtime;
93611+ pid_t shm_lapid;
93612+#endif
93613 };
93614
93615 /* shm_mode upper byte flags */
93616diff --git a/include/linux/signal.h b/include/linux/signal.h
93617index ab1e039..ad4229e 100644
93618--- a/include/linux/signal.h
93619+++ b/include/linux/signal.h
93620@@ -289,7 +289,7 @@ static inline void allow_signal(int sig)
93621 * know it'll be handled, so that they don't get converted to
93622 * SIGKILL or just silently dropped.
93623 */
93624- kernel_sigaction(sig, (__force __sighandler_t)2);
93625+ kernel_sigaction(sig, (__force_user __sighandler_t)2);
93626 }
93627
93628 static inline void disallow_signal(int sig)
93629diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
93630index bdccc4b..e9f8670 100644
93631--- a/include/linux/skbuff.h
93632+++ b/include/linux/skbuff.h
93633@@ -771,7 +771,7 @@ struct sk_buff *__alloc_skb(unsigned int size, gfp_t priority, int flags,
93634 int node);
93635 struct sk_buff *__build_skb(void *data, unsigned int frag_size);
93636 struct sk_buff *build_skb(void *data, unsigned int frag_size);
93637-static inline struct sk_buff *alloc_skb(unsigned int size,
93638+static inline struct sk_buff * __intentional_overflow(0) alloc_skb(unsigned int size,
93639 gfp_t priority)
93640 {
93641 return __alloc_skb(size, priority, 0, NUMA_NO_NODE);
93642@@ -1967,7 +1967,7 @@ static inline u32 skb_inner_network_header_len(const struct sk_buff *skb)
93643 return skb->inner_transport_header - skb->inner_network_header;
93644 }
93645
93646-static inline int skb_network_offset(const struct sk_buff *skb)
93647+static inline int __intentional_overflow(0) skb_network_offset(const struct sk_buff *skb)
93648 {
93649 return skb_network_header(skb) - skb->data;
93650 }
93651@@ -2027,7 +2027,7 @@ static inline int pskb_network_may_pull(struct sk_buff *skb, unsigned int len)
93652 * NET_IP_ALIGN(2) + ethernet_header(14) + IP_header(20/40) + ports(8)
93653 */
93654 #ifndef NET_SKB_PAD
93655-#define NET_SKB_PAD max(32, L1_CACHE_BYTES)
93656+#define NET_SKB_PAD max(_AC(32,UL), L1_CACHE_BYTES)
93657 #endif
93658
93659 int ___pskb_trim(struct sk_buff *skb, unsigned int len);
93660@@ -2669,9 +2669,9 @@ struct sk_buff *skb_recv_datagram(struct sock *sk, unsigned flags, int noblock,
93661 int *err);
93662 unsigned int datagram_poll(struct file *file, struct socket *sock,
93663 struct poll_table_struct *wait);
93664-int skb_copy_datagram_iter(const struct sk_buff *from, int offset,
93665+int __intentional_overflow(0) skb_copy_datagram_iter(const struct sk_buff *from, int offset,
93666 struct iov_iter *to, int size);
93667-static inline int skb_copy_datagram_msg(const struct sk_buff *from, int offset,
93668+static inline int __intentional_overflow(2,4) skb_copy_datagram_msg(const struct sk_buff *from, int offset,
93669 struct msghdr *msg, int size)
93670 {
93671 return skb_copy_datagram_iter(from, offset, &msg->msg_iter, size);
93672@@ -3193,6 +3193,9 @@ static inline void nf_reset(struct sk_buff *skb)
93673 nf_bridge_put(skb->nf_bridge);
93674 skb->nf_bridge = NULL;
93675 #endif
93676+#if IS_ENABLED(CONFIG_NETFILTER_XT_TARGET_TRACE)
93677+ skb->nf_trace = 0;
93678+#endif
93679 }
93680
93681 static inline void nf_reset_trace(struct sk_buff *skb)
93682diff --git a/include/linux/slab.h b/include/linux/slab.h
93683index 76f1fee..d95e6d2 100644
93684--- a/include/linux/slab.h
93685+++ b/include/linux/slab.h
93686@@ -14,15 +14,29 @@
93687 #include <linux/gfp.h>
93688 #include <linux/types.h>
93689 #include <linux/workqueue.h>
93690-
93691+#include <linux/err.h>
93692
93693 /*
93694 * Flags to pass to kmem_cache_create().
93695 * The ones marked DEBUG are only valid if CONFIG_SLAB_DEBUG is set.
93696 */
93697 #define SLAB_DEBUG_FREE 0x00000100UL /* DEBUG: Perform (expensive) checks on free */
93698+
93699+#ifdef CONFIG_PAX_USERCOPY_SLABS
93700+#define SLAB_USERCOPY 0x00000200UL /* PaX: Allow copying objs to/from userland */
93701+#else
93702+#define SLAB_USERCOPY 0x00000000UL
93703+#endif
93704+
93705 #define SLAB_RED_ZONE 0x00000400UL /* DEBUG: Red zone objs in a cache */
93706 #define SLAB_POISON 0x00000800UL /* DEBUG: Poison objects */
93707+
93708+#ifdef CONFIG_PAX_MEMORY_SANITIZE
93709+#define SLAB_NO_SANITIZE 0x00001000UL /* PaX: Do not sanitize objs on free */
93710+#else
93711+#define SLAB_NO_SANITIZE 0x00000000UL
93712+#endif
93713+
93714 #define SLAB_HWCACHE_ALIGN 0x00002000UL /* Align objs on cache lines */
93715 #define SLAB_CACHE_DMA 0x00004000UL /* Use GFP_DMA memory */
93716 #define SLAB_STORE_USER 0x00010000UL /* DEBUG: Store the last owner for bug hunting */
93717@@ -98,10 +112,13 @@
93718 * ZERO_SIZE_PTR can be passed to kfree though in the same way that NULL can.
93719 * Both make kfree a no-op.
93720 */
93721-#define ZERO_SIZE_PTR ((void *)16)
93722+#define ZERO_SIZE_PTR \
93723+({ \
93724+ BUILD_BUG_ON(!(MAX_ERRNO & ~PAGE_MASK));\
93725+ (void *)(-MAX_ERRNO-1L); \
93726+})
93727
93728-#define ZERO_OR_NULL_PTR(x) ((unsigned long)(x) <= \
93729- (unsigned long)ZERO_SIZE_PTR)
93730+#define ZERO_OR_NULL_PTR(x) ((unsigned long)(x) - 1 >= (unsigned long)ZERO_SIZE_PTR - 1)
93731
93732 #include <linux/kmemleak.h>
93733 #include <linux/kasan.h>
93734@@ -143,6 +160,8 @@ void * __must_check krealloc(const void *, size_t, gfp_t);
93735 void kfree(const void *);
93736 void kzfree(const void *);
93737 size_t ksize(const void *);
93738+const char *check_heap_object(const void *ptr, unsigned long n);
93739+bool is_usercopy_object(const void *ptr);
93740
93741 /*
93742 * Some archs want to perform DMA into kmalloc caches and need a guaranteed
93743@@ -235,6 +254,10 @@ extern struct kmem_cache *kmalloc_caches[KMALLOC_SHIFT_HIGH + 1];
93744 extern struct kmem_cache *kmalloc_dma_caches[KMALLOC_SHIFT_HIGH + 1];
93745 #endif
93746
93747+#ifdef CONFIG_PAX_USERCOPY_SLABS
93748+extern struct kmem_cache *kmalloc_usercopy_caches[KMALLOC_SHIFT_HIGH + 1];
93749+#endif
93750+
93751 /*
93752 * Figure out which kmalloc slab an allocation of a certain size
93753 * belongs to.
93754@@ -243,7 +266,7 @@ extern struct kmem_cache *kmalloc_dma_caches[KMALLOC_SHIFT_HIGH + 1];
93755 * 2 = 120 .. 192 bytes
93756 * n = 2^(n-1) .. 2^n -1
93757 */
93758-static __always_inline int kmalloc_index(size_t size)
93759+static __always_inline __size_overflow(1) int kmalloc_index(size_t size)
93760 {
93761 if (!size)
93762 return 0;
93763@@ -286,15 +309,15 @@ static __always_inline int kmalloc_index(size_t size)
93764 }
93765 #endif /* !CONFIG_SLOB */
93766
93767-void *__kmalloc(size_t size, gfp_t flags);
93768+void *__kmalloc(size_t size, gfp_t flags) __alloc_size(1) __size_overflow(1);
93769 void *kmem_cache_alloc(struct kmem_cache *, gfp_t flags);
93770 void kmem_cache_free(struct kmem_cache *, void *);
93771
93772 #ifdef CONFIG_NUMA
93773-void *__kmalloc_node(size_t size, gfp_t flags, int node);
93774+void *__kmalloc_node(size_t size, gfp_t flags, int node) __alloc_size(1) __size_overflow(1);
93775 void *kmem_cache_alloc_node(struct kmem_cache *, gfp_t flags, int node);
93776 #else
93777-static __always_inline void *__kmalloc_node(size_t size, gfp_t flags, int node)
93778+static __always_inline void * __size_overflow(1) __kmalloc_node(size_t size, gfp_t flags, int node)
93779 {
93780 return __kmalloc(size, flags);
93781 }
93782diff --git a/include/linux/slab_def.h b/include/linux/slab_def.h
93783index 33d0490..70a6313 100644
93784--- a/include/linux/slab_def.h
93785+++ b/include/linux/slab_def.h
93786@@ -40,7 +40,7 @@ struct kmem_cache {
93787 /* 4) cache creation/removal */
93788 const char *name;
93789 struct list_head list;
93790- int refcount;
93791+ atomic_t refcount;
93792 int object_size;
93793 int align;
93794
93795@@ -56,10 +56,14 @@ struct kmem_cache {
93796 unsigned long node_allocs;
93797 unsigned long node_frees;
93798 unsigned long node_overflow;
93799- atomic_t allochit;
93800- atomic_t allocmiss;
93801- atomic_t freehit;
93802- atomic_t freemiss;
93803+ atomic_unchecked_t allochit;
93804+ atomic_unchecked_t allocmiss;
93805+ atomic_unchecked_t freehit;
93806+ atomic_unchecked_t freemiss;
93807+#ifdef CONFIG_PAX_MEMORY_SANITIZE
93808+ atomic_unchecked_t sanitized;
93809+ atomic_unchecked_t not_sanitized;
93810+#endif
93811
93812 /*
93813 * If debugging is enabled, then the allocator can add additional
93814diff --git a/include/linux/slub_def.h b/include/linux/slub_def.h
93815index 3388511..6252f90 100644
93816--- a/include/linux/slub_def.h
93817+++ b/include/linux/slub_def.h
93818@@ -74,7 +74,7 @@ struct kmem_cache {
93819 struct kmem_cache_order_objects max;
93820 struct kmem_cache_order_objects min;
93821 gfp_t allocflags; /* gfp flags to use on each alloc */
93822- int refcount; /* Refcount for slab cache destroy */
93823+ atomic_t refcount; /* Refcount for slab cache destroy */
93824 void (*ctor)(void *);
93825 int inuse; /* Offset to metadata */
93826 int align; /* Alignment */
93827diff --git a/include/linux/smp.h b/include/linux/smp.h
93828index be91db2..3f23232 100644
93829--- a/include/linux/smp.h
93830+++ b/include/linux/smp.h
93831@@ -183,7 +183,9 @@ static inline void smp_init(void) { }
93832 #endif
93833
93834 #define get_cpu() ({ preempt_disable(); smp_processor_id(); })
93835+#define raw_get_cpu() ({ raw_preempt_disable(); raw_smp_processor_id(); })
93836 #define put_cpu() preempt_enable()
93837+#define raw_put_cpu_no_resched() raw_preempt_enable_no_resched()
93838
93839 /*
93840 * Callback to arch code if there's nosmp or maxcpus=0 on the
93841diff --git a/include/linux/sock_diag.h b/include/linux/sock_diag.h
93842index 46cca4c..3323536 100644
93843--- a/include/linux/sock_diag.h
93844+++ b/include/linux/sock_diag.h
93845@@ -11,7 +11,7 @@ struct sock;
93846 struct sock_diag_handler {
93847 __u8 family;
93848 int (*dump)(struct sk_buff *skb, struct nlmsghdr *nlh);
93849-};
93850+} __do_const;
93851
93852 int sock_diag_register(const struct sock_diag_handler *h);
93853 void sock_diag_unregister(const struct sock_diag_handler *h);
93854diff --git a/include/linux/sonet.h b/include/linux/sonet.h
93855index 680f9a3..f13aeb0 100644
93856--- a/include/linux/sonet.h
93857+++ b/include/linux/sonet.h
93858@@ -7,7 +7,7 @@
93859 #include <uapi/linux/sonet.h>
93860
93861 struct k_sonet_stats {
93862-#define __HANDLE_ITEM(i) atomic_t i
93863+#define __HANDLE_ITEM(i) atomic_unchecked_t i
93864 __SONET_ITEMS
93865 #undef __HANDLE_ITEM
93866 };
93867diff --git a/include/linux/sunrpc/addr.h b/include/linux/sunrpc/addr.h
93868index 07d8e53..dc934c9 100644
93869--- a/include/linux/sunrpc/addr.h
93870+++ b/include/linux/sunrpc/addr.h
93871@@ -23,9 +23,9 @@ static inline unsigned short rpc_get_port(const struct sockaddr *sap)
93872 {
93873 switch (sap->sa_family) {
93874 case AF_INET:
93875- return ntohs(((struct sockaddr_in *)sap)->sin_port);
93876+ return ntohs(((const struct sockaddr_in *)sap)->sin_port);
93877 case AF_INET6:
93878- return ntohs(((struct sockaddr_in6 *)sap)->sin6_port);
93879+ return ntohs(((const struct sockaddr_in6 *)sap)->sin6_port);
93880 }
93881 return 0;
93882 }
93883@@ -58,7 +58,7 @@ static inline bool __rpc_cmp_addr4(const struct sockaddr *sap1,
93884 static inline bool __rpc_copy_addr4(struct sockaddr *dst,
93885 const struct sockaddr *src)
93886 {
93887- const struct sockaddr_in *ssin = (struct sockaddr_in *) src;
93888+ const struct sockaddr_in *ssin = (const struct sockaddr_in *) src;
93889 struct sockaddr_in *dsin = (struct sockaddr_in *) dst;
93890
93891 dsin->sin_family = ssin->sin_family;
93892@@ -164,7 +164,7 @@ static inline u32 rpc_get_scope_id(const struct sockaddr *sa)
93893 if (sa->sa_family != AF_INET6)
93894 return 0;
93895
93896- return ((struct sockaddr_in6 *) sa)->sin6_scope_id;
93897+ return ((const struct sockaddr_in6 *) sa)->sin6_scope_id;
93898 }
93899
93900 #endif /* _LINUX_SUNRPC_ADDR_H */
93901diff --git a/include/linux/sunrpc/clnt.h b/include/linux/sunrpc/clnt.h
93902index 598ba80..d90cba6 100644
93903--- a/include/linux/sunrpc/clnt.h
93904+++ b/include/linux/sunrpc/clnt.h
93905@@ -100,7 +100,7 @@ struct rpc_procinfo {
93906 unsigned int p_timer; /* Which RTT timer to use */
93907 u32 p_statidx; /* Which procedure to account */
93908 const char * p_name; /* name of procedure */
93909-};
93910+} __do_const;
93911
93912 #ifdef __KERNEL__
93913
93914diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h
93915index fae6fb9..023fbcd 100644
93916--- a/include/linux/sunrpc/svc.h
93917+++ b/include/linux/sunrpc/svc.h
93918@@ -420,7 +420,7 @@ struct svc_procedure {
93919 unsigned int pc_count; /* call count */
93920 unsigned int pc_cachetype; /* cache info (NFS) */
93921 unsigned int pc_xdrressize; /* maximum size of XDR reply */
93922-};
93923+} __do_const;
93924
93925 /*
93926 * Function prototypes.
93927diff --git a/include/linux/sunrpc/svc_rdma.h b/include/linux/sunrpc/svc_rdma.h
93928index df8edf8..d140fec 100644
93929--- a/include/linux/sunrpc/svc_rdma.h
93930+++ b/include/linux/sunrpc/svc_rdma.h
93931@@ -53,15 +53,15 @@ extern unsigned int svcrdma_ord;
93932 extern unsigned int svcrdma_max_requests;
93933 extern unsigned int svcrdma_max_req_size;
93934
93935-extern atomic_t rdma_stat_recv;
93936-extern atomic_t rdma_stat_read;
93937-extern atomic_t rdma_stat_write;
93938-extern atomic_t rdma_stat_sq_starve;
93939-extern atomic_t rdma_stat_rq_starve;
93940-extern atomic_t rdma_stat_rq_poll;
93941-extern atomic_t rdma_stat_rq_prod;
93942-extern atomic_t rdma_stat_sq_poll;
93943-extern atomic_t rdma_stat_sq_prod;
93944+extern atomic_unchecked_t rdma_stat_recv;
93945+extern atomic_unchecked_t rdma_stat_read;
93946+extern atomic_unchecked_t rdma_stat_write;
93947+extern atomic_unchecked_t rdma_stat_sq_starve;
93948+extern atomic_unchecked_t rdma_stat_rq_starve;
93949+extern atomic_unchecked_t rdma_stat_rq_poll;
93950+extern atomic_unchecked_t rdma_stat_rq_prod;
93951+extern atomic_unchecked_t rdma_stat_sq_poll;
93952+extern atomic_unchecked_t rdma_stat_sq_prod;
93953
93954 /*
93955 * Contexts are built when an RDMA request is created and are a
93956diff --git a/include/linux/sunrpc/svcauth.h b/include/linux/sunrpc/svcauth.h
93957index 8d71d65..f79586e 100644
93958--- a/include/linux/sunrpc/svcauth.h
93959+++ b/include/linux/sunrpc/svcauth.h
93960@@ -120,7 +120,7 @@ struct auth_ops {
93961 int (*release)(struct svc_rqst *rq);
93962 void (*domain_release)(struct auth_domain *);
93963 int (*set_client)(struct svc_rqst *rq);
93964-};
93965+} __do_const;
93966
93967 #define SVC_GARBAGE 1
93968 #define SVC_SYSERR 2
93969diff --git a/include/linux/swiotlb.h b/include/linux/swiotlb.h
93970index e7a018e..49f8b17 100644
93971--- a/include/linux/swiotlb.h
93972+++ b/include/linux/swiotlb.h
93973@@ -60,7 +60,8 @@ extern void
93974
93975 extern void
93976 swiotlb_free_coherent(struct device *hwdev, size_t size,
93977- void *vaddr, dma_addr_t dma_handle);
93978+ void *vaddr, dma_addr_t dma_handle,
93979+ struct dma_attrs *attrs);
93980
93981 extern dma_addr_t swiotlb_map_page(struct device *dev, struct page *page,
93982 unsigned long offset, size_t size,
93983diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
93984index 76d1e38..200776e 100644
93985--- a/include/linux/syscalls.h
93986+++ b/include/linux/syscalls.h
93987@@ -102,7 +102,12 @@ union bpf_attr;
93988 #define __TYPE_IS_L(t) (__same_type((t)0, 0L))
93989 #define __TYPE_IS_UL(t) (__same_type((t)0, 0UL))
93990 #define __TYPE_IS_LL(t) (__same_type((t)0, 0LL) || __same_type((t)0, 0ULL))
93991-#define __SC_LONG(t, a) __typeof(__builtin_choose_expr(__TYPE_IS_LL(t), 0LL, 0L)) a
93992+#define __SC_LONG(t, a) __typeof__( \
93993+ __builtin_choose_expr( \
93994+ sizeof(t) > sizeof(int), \
93995+ (t) 0, \
93996+ __builtin_choose_expr(__type_is_unsigned(t), 0UL, 0L) \
93997+ )) a
93998 #define __SC_CAST(t, a) (t) a
93999 #define __SC_ARGS(t, a) a
94000 #define __SC_TEST(t, a) (void)BUILD_BUG_ON_ZERO(!__TYPE_IS_LL(t) && sizeof(t) > sizeof(long))
94001@@ -384,11 +389,11 @@ asmlinkage long sys_sync(void);
94002 asmlinkage long sys_fsync(unsigned int fd);
94003 asmlinkage long sys_fdatasync(unsigned int fd);
94004 asmlinkage long sys_bdflush(int func, long data);
94005-asmlinkage long sys_mount(char __user *dev_name, char __user *dir_name,
94006- char __user *type, unsigned long flags,
94007+asmlinkage long sys_mount(const char __user *dev_name, const char __user *dir_name,
94008+ const char __user *type, unsigned long flags,
94009 void __user *data);
94010-asmlinkage long sys_umount(char __user *name, int flags);
94011-asmlinkage long sys_oldumount(char __user *name);
94012+asmlinkage long sys_umount(const char __user *name, int flags);
94013+asmlinkage long sys_oldumount(const char __user *name);
94014 asmlinkage long sys_truncate(const char __user *path, long length);
94015 asmlinkage long sys_ftruncate(unsigned int fd, unsigned long length);
94016 asmlinkage long sys_stat(const char __user *filename,
94017@@ -604,7 +609,7 @@ asmlinkage long sys_getsockname(int, struct sockaddr __user *, int __user *);
94018 asmlinkage long sys_getpeername(int, struct sockaddr __user *, int __user *);
94019 asmlinkage long sys_send(int, void __user *, size_t, unsigned);
94020 asmlinkage long sys_sendto(int, void __user *, size_t, unsigned,
94021- struct sockaddr __user *, int);
94022+ struct sockaddr __user *, int) __intentional_overflow(0);
94023 asmlinkage long sys_sendmsg(int fd, struct user_msghdr __user *msg, unsigned flags);
94024 asmlinkage long sys_sendmmsg(int fd, struct mmsghdr __user *msg,
94025 unsigned int vlen, unsigned flags);
94026@@ -663,10 +668,10 @@ asmlinkage long sys_msgctl(int msqid, int cmd, struct msqid_ds __user *buf);
94027
94028 asmlinkage long sys_semget(key_t key, int nsems, int semflg);
94029 asmlinkage long sys_semop(int semid, struct sembuf __user *sops,
94030- unsigned nsops);
94031+ long nsops);
94032 asmlinkage long sys_semctl(int semid, int semnum, int cmd, unsigned long arg);
94033 asmlinkage long sys_semtimedop(int semid, struct sembuf __user *sops,
94034- unsigned nsops,
94035+ long nsops,
94036 const struct timespec __user *timeout);
94037 asmlinkage long sys_shmat(int shmid, char __user *shmaddr, int shmflg);
94038 asmlinkage long sys_shmget(key_t key, size_t size, int flag);
94039diff --git a/include/linux/syscore_ops.h b/include/linux/syscore_ops.h
94040index 27b3b0b..e093dd9 100644
94041--- a/include/linux/syscore_ops.h
94042+++ b/include/linux/syscore_ops.h
94043@@ -16,7 +16,7 @@ struct syscore_ops {
94044 int (*suspend)(void);
94045 void (*resume)(void);
94046 void (*shutdown)(void);
94047-};
94048+} __do_const;
94049
94050 extern void register_syscore_ops(struct syscore_ops *ops);
94051 extern void unregister_syscore_ops(struct syscore_ops *ops);
94052diff --git a/include/linux/sysctl.h b/include/linux/sysctl.h
94053index b7361f8..341a15a 100644
94054--- a/include/linux/sysctl.h
94055+++ b/include/linux/sysctl.h
94056@@ -39,6 +39,8 @@ typedef int proc_handler (struct ctl_table *ctl, int write,
94057
94058 extern int proc_dostring(struct ctl_table *, int,
94059 void __user *, size_t *, loff_t *);
94060+extern int proc_dostring_modpriv(struct ctl_table *, int,
94061+ void __user *, size_t *, loff_t *);
94062 extern int proc_dointvec(struct ctl_table *, int,
94063 void __user *, size_t *, loff_t *);
94064 extern int proc_dointvec_minmax(struct ctl_table *, int,
94065@@ -113,7 +115,8 @@ struct ctl_table
94066 struct ctl_table_poll *poll;
94067 void *extra1;
94068 void *extra2;
94069-};
94070+} __do_const __randomize_layout;
94071+typedef struct ctl_table __no_const ctl_table_no_const;
94072
94073 struct ctl_node {
94074 struct rb_node node;
94075diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h
94076index ddad161..a3efd26 100644
94077--- a/include/linux/sysfs.h
94078+++ b/include/linux/sysfs.h
94079@@ -34,7 +34,8 @@ struct attribute {
94080 struct lock_class_key *key;
94081 struct lock_class_key skey;
94082 #endif
94083-};
94084+} __do_const;
94085+typedef struct attribute __no_const attribute_no_const;
94086
94087 /**
94088 * sysfs_attr_init - initialize a dynamically allocated sysfs attribute
94089@@ -63,7 +64,8 @@ struct attribute_group {
94090 struct attribute *, int);
94091 struct attribute **attrs;
94092 struct bin_attribute **bin_attrs;
94093-};
94094+} __do_const;
94095+typedef struct attribute_group __no_const attribute_group_no_const;
94096
94097 /**
94098 * Use these macros to make defining attributes easier. See include/linux/device.h
94099@@ -137,7 +139,8 @@ struct bin_attribute {
94100 char *, loff_t, size_t);
94101 int (*mmap)(struct file *, struct kobject *, struct bin_attribute *attr,
94102 struct vm_area_struct *vma);
94103-};
94104+} __do_const;
94105+typedef struct bin_attribute __no_const bin_attribute_no_const;
94106
94107 /**
94108 * sysfs_bin_attr_init - initialize a dynamically allocated bin_attribute
94109diff --git a/include/linux/sysrq.h b/include/linux/sysrq.h
94110index 387fa7d..3fcde6b 100644
94111--- a/include/linux/sysrq.h
94112+++ b/include/linux/sysrq.h
94113@@ -16,6 +16,7 @@
94114
94115 #include <linux/errno.h>
94116 #include <linux/types.h>
94117+#include <linux/compiler.h>
94118
94119 /* Possible values of bitmask for enabling sysrq functions */
94120 /* 0x0001 is reserved for enable everything */
94121@@ -33,7 +34,7 @@ struct sysrq_key_op {
94122 char *help_msg;
94123 char *action_msg;
94124 int enable_mask;
94125-};
94126+} __do_const;
94127
94128 #ifdef CONFIG_MAGIC_SYSRQ
94129
94130diff --git a/include/linux/thread_info.h b/include/linux/thread_info.h
94131index ff307b5..f1a4468 100644
94132--- a/include/linux/thread_info.h
94133+++ b/include/linux/thread_info.h
94134@@ -145,6 +145,13 @@ static inline bool test_and_clear_restore_sigmask(void)
94135 #error "no set_restore_sigmask() provided and default one won't work"
94136 #endif
94137
94138+extern void __check_object_size(const void *ptr, unsigned long n, bool to_user, bool const_size);
94139+
94140+static inline void check_object_size(const void *ptr, unsigned long n, bool to_user)
94141+{
94142+ __check_object_size(ptr, n, to_user, __builtin_constant_p(n));
94143+}
94144+
94145 #endif /* __KERNEL__ */
94146
94147 #endif /* _LINUX_THREAD_INFO_H */
94148diff --git a/include/linux/tty.h b/include/linux/tty.h
94149index 790752a..36d9b54 100644
94150--- a/include/linux/tty.h
94151+++ b/include/linux/tty.h
94152@@ -225,7 +225,7 @@ struct tty_port {
94153 const struct tty_port_operations *ops; /* Port operations */
94154 spinlock_t lock; /* Lock protecting tty field */
94155 int blocked_open; /* Waiting to open */
94156- int count; /* Usage count */
94157+ atomic_t count; /* Usage count */
94158 wait_queue_head_t open_wait; /* Open waiters */
94159 wait_queue_head_t close_wait; /* Close waiters */
94160 wait_queue_head_t delta_msr_wait; /* Modem status change */
94161@@ -313,7 +313,7 @@ struct tty_struct {
94162 /* If the tty has a pending do_SAK, queue it here - akpm */
94163 struct work_struct SAK_work;
94164 struct tty_port *port;
94165-};
94166+} __randomize_layout;
94167
94168 /* Each of a tty's open files has private_data pointing to tty_file_private */
94169 struct tty_file_private {
94170@@ -572,7 +572,7 @@ extern int tty_port_open(struct tty_port *port,
94171 struct tty_struct *tty, struct file *filp);
94172 static inline int tty_port_users(struct tty_port *port)
94173 {
94174- return port->count + port->blocked_open;
94175+ return atomic_read(&port->count) + port->blocked_open;
94176 }
94177
94178 extern int tty_register_ldisc(int disc, struct tty_ldisc_ops *new_ldisc);
94179diff --git a/include/linux/tty_driver.h b/include/linux/tty_driver.h
94180index 92e337c..f46757b 100644
94181--- a/include/linux/tty_driver.h
94182+++ b/include/linux/tty_driver.h
94183@@ -291,7 +291,7 @@ struct tty_operations {
94184 void (*poll_put_char)(struct tty_driver *driver, int line, char ch);
94185 #endif
94186 const struct file_operations *proc_fops;
94187-};
94188+} __do_const __randomize_layout;
94189
94190 struct tty_driver {
94191 int magic; /* magic number for this structure */
94192@@ -325,7 +325,7 @@ struct tty_driver {
94193
94194 const struct tty_operations *ops;
94195 struct list_head tty_drivers;
94196-};
94197+} __randomize_layout;
94198
94199 extern struct list_head tty_drivers;
94200
94201diff --git a/include/linux/tty_ldisc.h b/include/linux/tty_ldisc.h
94202index 00c9d68..bc0188b 100644
94203--- a/include/linux/tty_ldisc.h
94204+++ b/include/linux/tty_ldisc.h
94205@@ -215,7 +215,7 @@ struct tty_ldisc_ops {
94206
94207 struct module *owner;
94208
94209- int refcount;
94210+ atomic_t refcount;
94211 };
94212
94213 struct tty_ldisc {
94214diff --git a/include/linux/types.h b/include/linux/types.h
94215index 6747247..fc7ec8b 100644
94216--- a/include/linux/types.h
94217+++ b/include/linux/types.h
94218@@ -174,10 +174,26 @@ typedef struct {
94219 int counter;
94220 } atomic_t;
94221
94222+#ifdef CONFIG_PAX_REFCOUNT
94223+typedef struct {
94224+ int counter;
94225+} atomic_unchecked_t;
94226+#else
94227+typedef atomic_t atomic_unchecked_t;
94228+#endif
94229+
94230 #ifdef CONFIG_64BIT
94231 typedef struct {
94232 long counter;
94233 } atomic64_t;
94234+
94235+#ifdef CONFIG_PAX_REFCOUNT
94236+typedef struct {
94237+ long counter;
94238+} atomic64_unchecked_t;
94239+#else
94240+typedef atomic64_t atomic64_unchecked_t;
94241+#endif
94242 #endif
94243
94244 struct list_head {
94245diff --git a/include/linux/uaccess.h b/include/linux/uaccess.h
94246index ecd3319..8a36ded 100644
94247--- a/include/linux/uaccess.h
94248+++ b/include/linux/uaccess.h
94249@@ -75,11 +75,11 @@ static inline unsigned long __copy_from_user_nocache(void *to,
94250 long ret; \
94251 mm_segment_t old_fs = get_fs(); \
94252 \
94253- set_fs(KERNEL_DS); \
94254 pagefault_disable(); \
94255- ret = __copy_from_user_inatomic(&(retval), (__force typeof(retval) __user *)(addr), sizeof(retval)); \
94256- pagefault_enable(); \
94257+ set_fs(KERNEL_DS); \
94258+ ret = __copy_from_user_inatomic(&(retval), (typeof(retval) __force_user *)(addr), sizeof(retval)); \
94259 set_fs(old_fs); \
94260+ pagefault_enable(); \
94261 ret; \
94262 })
94263
94264diff --git a/include/linux/uidgid.h b/include/linux/uidgid.h
94265index 2d1f9b6..d7a9fce 100644
94266--- a/include/linux/uidgid.h
94267+++ b/include/linux/uidgid.h
94268@@ -175,4 +175,9 @@ static inline bool kgid_has_mapping(struct user_namespace *ns, kgid_t gid)
94269
94270 #endif /* CONFIG_USER_NS */
94271
94272+#define GR_GLOBAL_UID(x) from_kuid_munged(&init_user_ns, (x))
94273+#define GR_GLOBAL_GID(x) from_kgid_munged(&init_user_ns, (x))
94274+#define gr_is_global_root(x) uid_eq((x), GLOBAL_ROOT_UID)
94275+#define gr_is_global_nonroot(x) (!uid_eq((x), GLOBAL_ROOT_UID))
94276+
94277 #endif /* _LINUX_UIDGID_H */
94278diff --git a/include/linux/uio_driver.h b/include/linux/uio_driver.h
94279index 32c0e83..671eb35 100644
94280--- a/include/linux/uio_driver.h
94281+++ b/include/linux/uio_driver.h
94282@@ -67,7 +67,7 @@ struct uio_device {
94283 struct module *owner;
94284 struct device *dev;
94285 int minor;
94286- atomic_t event;
94287+ atomic_unchecked_t event;
94288 struct fasync_struct *async_queue;
94289 wait_queue_head_t wait;
94290 struct uio_info *info;
94291diff --git a/include/linux/unaligned/access_ok.h b/include/linux/unaligned/access_ok.h
94292index 99c1b4d..562e6f3 100644
94293--- a/include/linux/unaligned/access_ok.h
94294+++ b/include/linux/unaligned/access_ok.h
94295@@ -4,34 +4,34 @@
94296 #include <linux/kernel.h>
94297 #include <asm/byteorder.h>
94298
94299-static inline u16 get_unaligned_le16(const void *p)
94300+static inline u16 __intentional_overflow(-1) get_unaligned_le16(const void *p)
94301 {
94302- return le16_to_cpup((__le16 *)p);
94303+ return le16_to_cpup((const __le16 *)p);
94304 }
94305
94306-static inline u32 get_unaligned_le32(const void *p)
94307+static inline u32 __intentional_overflow(-1) get_unaligned_le32(const void *p)
94308 {
94309- return le32_to_cpup((__le32 *)p);
94310+ return le32_to_cpup((const __le32 *)p);
94311 }
94312
94313-static inline u64 get_unaligned_le64(const void *p)
94314+static inline u64 __intentional_overflow(-1) get_unaligned_le64(const void *p)
94315 {
94316- return le64_to_cpup((__le64 *)p);
94317+ return le64_to_cpup((const __le64 *)p);
94318 }
94319
94320-static inline u16 get_unaligned_be16(const void *p)
94321+static inline u16 __intentional_overflow(-1) get_unaligned_be16(const void *p)
94322 {
94323- return be16_to_cpup((__be16 *)p);
94324+ return be16_to_cpup((const __be16 *)p);
94325 }
94326
94327-static inline u32 get_unaligned_be32(const void *p)
94328+static inline u32 __intentional_overflow(-1) get_unaligned_be32(const void *p)
94329 {
94330- return be32_to_cpup((__be32 *)p);
94331+ return be32_to_cpup((const __be32 *)p);
94332 }
94333
94334-static inline u64 get_unaligned_be64(const void *p)
94335+static inline u64 __intentional_overflow(-1) get_unaligned_be64(const void *p)
94336 {
94337- return be64_to_cpup((__be64 *)p);
94338+ return be64_to_cpup((const __be64 *)p);
94339 }
94340
94341 static inline void put_unaligned_le16(u16 val, void *p)
94342diff --git a/include/linux/usb.h b/include/linux/usb.h
94343index 447fe29..9fc875f 100644
94344--- a/include/linux/usb.h
94345+++ b/include/linux/usb.h
94346@@ -592,7 +592,7 @@ struct usb_device {
94347 int maxchild;
94348
94349 u32 quirks;
94350- atomic_t urbnum;
94351+ atomic_unchecked_t urbnum;
94352
94353 unsigned long active_duration;
94354
94355@@ -1676,7 +1676,7 @@ void usb_buffer_unmap_sg(const struct usb_device *dev, int is_in,
94356
94357 extern int usb_control_msg(struct usb_device *dev, unsigned int pipe,
94358 __u8 request, __u8 requesttype, __u16 value, __u16 index,
94359- void *data, __u16 size, int timeout);
94360+ void *data, __u16 size, int timeout) __intentional_overflow(-1);
94361 extern int usb_interrupt_msg(struct usb_device *usb_dev, unsigned int pipe,
94362 void *data, int len, int *actual_length, int timeout);
94363 extern int usb_bulk_msg(struct usb_device *usb_dev, unsigned int pipe,
94364diff --git a/include/linux/usb/renesas_usbhs.h b/include/linux/usb/renesas_usbhs.h
94365index 9fd9e48..e2c5f35 100644
94366--- a/include/linux/usb/renesas_usbhs.h
94367+++ b/include/linux/usb/renesas_usbhs.h
94368@@ -39,7 +39,7 @@ enum {
94369 */
94370 struct renesas_usbhs_driver_callback {
94371 int (*notify_hotplug)(struct platform_device *pdev);
94372-};
94373+} __no_const;
94374
94375 /*
94376 * callback functions for platform
94377diff --git a/include/linux/user_namespace.h b/include/linux/user_namespace.h
94378index 8297e5b..0dfae27 100644
94379--- a/include/linux/user_namespace.h
94380+++ b/include/linux/user_namespace.h
94381@@ -39,7 +39,7 @@ struct user_namespace {
94382 struct key *persistent_keyring_register;
94383 struct rw_semaphore persistent_keyring_register_sem;
94384 #endif
94385-};
94386+} __randomize_layout;
94387
94388 extern struct user_namespace init_user_ns;
94389
94390diff --git a/include/linux/utsname.h b/include/linux/utsname.h
94391index 5093f58..c103e58 100644
94392--- a/include/linux/utsname.h
94393+++ b/include/linux/utsname.h
94394@@ -25,7 +25,7 @@ struct uts_namespace {
94395 struct new_utsname name;
94396 struct user_namespace *user_ns;
94397 struct ns_common ns;
94398-};
94399+} __randomize_layout;
94400 extern struct uts_namespace init_uts_ns;
94401
94402 #ifdef CONFIG_UTS_NS
94403diff --git a/include/linux/vermagic.h b/include/linux/vermagic.h
94404index 6f8fbcf..4efc177 100644
94405--- a/include/linux/vermagic.h
94406+++ b/include/linux/vermagic.h
94407@@ -25,9 +25,42 @@
94408 #define MODULE_ARCH_VERMAGIC ""
94409 #endif
94410
94411+#ifdef CONFIG_PAX_REFCOUNT
94412+#define MODULE_PAX_REFCOUNT "REFCOUNT "
94413+#else
94414+#define MODULE_PAX_REFCOUNT ""
94415+#endif
94416+
94417+#ifdef CONSTIFY_PLUGIN
94418+#define MODULE_CONSTIFY_PLUGIN "CONSTIFY_PLUGIN "
94419+#else
94420+#define MODULE_CONSTIFY_PLUGIN ""
94421+#endif
94422+
94423+#ifdef STACKLEAK_PLUGIN
94424+#define MODULE_STACKLEAK_PLUGIN "STACKLEAK_PLUGIN "
94425+#else
94426+#define MODULE_STACKLEAK_PLUGIN ""
94427+#endif
94428+
94429+#ifdef RANDSTRUCT_PLUGIN
94430+#include <generated/randomize_layout_hash.h>
94431+#define MODULE_RANDSTRUCT_PLUGIN "RANDSTRUCT_PLUGIN_" RANDSTRUCT_HASHED_SEED
94432+#else
94433+#define MODULE_RANDSTRUCT_PLUGIN
94434+#endif
94435+
94436+#ifdef CONFIG_GRKERNSEC
94437+#define MODULE_GRSEC "GRSEC "
94438+#else
94439+#define MODULE_GRSEC ""
94440+#endif
94441+
94442 #define VERMAGIC_STRING \
94443 UTS_RELEASE " " \
94444 MODULE_VERMAGIC_SMP MODULE_VERMAGIC_PREEMPT \
94445 MODULE_VERMAGIC_MODULE_UNLOAD MODULE_VERMAGIC_MODVERSIONS \
94446- MODULE_ARCH_VERMAGIC
94447+ MODULE_ARCH_VERMAGIC \
94448+ MODULE_PAX_REFCOUNT MODULE_CONSTIFY_PLUGIN MODULE_STACKLEAK_PLUGIN \
94449+ MODULE_GRSEC MODULE_RANDSTRUCT_PLUGIN
94450
94451diff --git a/include/linux/vga_switcheroo.h b/include/linux/vga_switcheroo.h
94452index b483abd..af305ad 100644
94453--- a/include/linux/vga_switcheroo.h
94454+++ b/include/linux/vga_switcheroo.h
94455@@ -63,9 +63,9 @@ int vga_switcheroo_get_client_state(struct pci_dev *dev);
94456
94457 void vga_switcheroo_set_dynamic_switch(struct pci_dev *pdev, enum vga_switcheroo_state dynamic);
94458
94459-int vga_switcheroo_init_domain_pm_ops(struct device *dev, struct dev_pm_domain *domain);
94460+int vga_switcheroo_init_domain_pm_ops(struct device *dev, dev_pm_domain_no_const *domain);
94461 void vga_switcheroo_fini_domain_pm_ops(struct device *dev);
94462-int vga_switcheroo_init_domain_pm_optimus_hdmi_audio(struct device *dev, struct dev_pm_domain *domain);
94463+int vga_switcheroo_init_domain_pm_optimus_hdmi_audio(struct device *dev, dev_pm_domain_no_const *domain);
94464 #else
94465
94466 static inline void vga_switcheroo_unregister_client(struct pci_dev *dev) {}
94467@@ -82,9 +82,9 @@ static inline int vga_switcheroo_get_client_state(struct pci_dev *dev) { return
94468
94469 static inline void vga_switcheroo_set_dynamic_switch(struct pci_dev *pdev, enum vga_switcheroo_state dynamic) {}
94470
94471-static inline int vga_switcheroo_init_domain_pm_ops(struct device *dev, struct dev_pm_domain *domain) { return -EINVAL; }
94472+static inline int vga_switcheroo_init_domain_pm_ops(struct device *dev, dev_pm_domain_no_const *domain) { return -EINVAL; }
94473 static inline void vga_switcheroo_fini_domain_pm_ops(struct device *dev) {}
94474-static inline int vga_switcheroo_init_domain_pm_optimus_hdmi_audio(struct device *dev, struct dev_pm_domain *domain) { return -EINVAL; }
94475+static inline int vga_switcheroo_init_domain_pm_optimus_hdmi_audio(struct device *dev, dev_pm_domain_no_const *domain) { return -EINVAL; }
94476
94477 #endif
94478 #endif /* _LINUX_VGA_SWITCHEROO_H_ */
94479diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h
94480index 0ec5983..cc61051 100644
94481--- a/include/linux/vmalloc.h
94482+++ b/include/linux/vmalloc.h
94483@@ -18,6 +18,11 @@ struct vm_area_struct; /* vma defining user mapping in mm_types.h */
94484 #define VM_UNINITIALIZED 0x00000020 /* vm_struct is not fully initialized */
94485 #define VM_NO_GUARD 0x00000040 /* don't add guard page */
94486 #define VM_KASAN 0x00000080 /* has allocated kasan shadow memory */
94487+
94488+#if defined(CONFIG_X86) && defined(CONFIG_PAX_KERNEXEC)
94489+#define VM_KERNEXEC 0x00000100 /* allocate from executable kernel memory range */
94490+#endif
94491+
94492 /* bits [20..32] reserved for arch specific ioremap internals */
94493
94494 /*
94495@@ -86,6 +91,10 @@ extern void *vmap(struct page **pages, unsigned int count,
94496 unsigned long flags, pgprot_t prot);
94497 extern void vunmap(const void *addr);
94498
94499+#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
94500+extern void unmap_process_stacks(struct task_struct *task);
94501+#endif
94502+
94503 extern int remap_vmalloc_range_partial(struct vm_area_struct *vma,
94504 unsigned long uaddr, void *kaddr,
94505 unsigned long size);
94506@@ -150,7 +159,7 @@ extern void free_vm_area(struct vm_struct *area);
94507
94508 /* for /dev/kmem */
94509 extern long vread(char *buf, char *addr, unsigned long count);
94510-extern long vwrite(char *buf, char *addr, unsigned long count);
94511+extern long vwrite(char *buf, char *addr, unsigned long count) __size_overflow(3);
94512
94513 /*
94514 * Internals. Dont't use..
94515diff --git a/include/linux/vmstat.h b/include/linux/vmstat.h
94516index 82e7db7..f8ce3d0 100644
94517--- a/include/linux/vmstat.h
94518+++ b/include/linux/vmstat.h
94519@@ -108,18 +108,18 @@ static inline void vm_events_fold_cpu(int cpu)
94520 /*
94521 * Zone based page accounting with per cpu differentials.
94522 */
94523-extern atomic_long_t vm_stat[NR_VM_ZONE_STAT_ITEMS];
94524+extern atomic_long_unchecked_t vm_stat[NR_VM_ZONE_STAT_ITEMS];
94525
94526 static inline void zone_page_state_add(long x, struct zone *zone,
94527 enum zone_stat_item item)
94528 {
94529- atomic_long_add(x, &zone->vm_stat[item]);
94530- atomic_long_add(x, &vm_stat[item]);
94531+ atomic_long_add_unchecked(x, &zone->vm_stat[item]);
94532+ atomic_long_add_unchecked(x, &vm_stat[item]);
94533 }
94534
94535-static inline unsigned long global_page_state(enum zone_stat_item item)
94536+static inline unsigned long __intentional_overflow(-1) global_page_state(enum zone_stat_item item)
94537 {
94538- long x = atomic_long_read(&vm_stat[item]);
94539+ long x = atomic_long_read_unchecked(&vm_stat[item]);
94540 #ifdef CONFIG_SMP
94541 if (x < 0)
94542 x = 0;
94543@@ -127,10 +127,10 @@ static inline unsigned long global_page_state(enum zone_stat_item item)
94544 return x;
94545 }
94546
94547-static inline unsigned long zone_page_state(struct zone *zone,
94548+static inline unsigned long __intentional_overflow(-1) zone_page_state(struct zone *zone,
94549 enum zone_stat_item item)
94550 {
94551- long x = atomic_long_read(&zone->vm_stat[item]);
94552+ long x = atomic_long_read_unchecked(&zone->vm_stat[item]);
94553 #ifdef CONFIG_SMP
94554 if (x < 0)
94555 x = 0;
94556@@ -147,7 +147,7 @@ static inline unsigned long zone_page_state(struct zone *zone,
94557 static inline unsigned long zone_page_state_snapshot(struct zone *zone,
94558 enum zone_stat_item item)
94559 {
94560- long x = atomic_long_read(&zone->vm_stat[item]);
94561+ long x = atomic_long_read_unchecked(&zone->vm_stat[item]);
94562
94563 #ifdef CONFIG_SMP
94564 int cpu;
94565@@ -234,14 +234,14 @@ static inline void __mod_zone_page_state(struct zone *zone,
94566
94567 static inline void __inc_zone_state(struct zone *zone, enum zone_stat_item item)
94568 {
94569- atomic_long_inc(&zone->vm_stat[item]);
94570- atomic_long_inc(&vm_stat[item]);
94571+ atomic_long_inc_unchecked(&zone->vm_stat[item]);
94572+ atomic_long_inc_unchecked(&vm_stat[item]);
94573 }
94574
94575 static inline void __dec_zone_state(struct zone *zone, enum zone_stat_item item)
94576 {
94577- atomic_long_dec(&zone->vm_stat[item]);
94578- atomic_long_dec(&vm_stat[item]);
94579+ atomic_long_dec_unchecked(&zone->vm_stat[item]);
94580+ atomic_long_dec_unchecked(&vm_stat[item]);
94581 }
94582
94583 static inline void __inc_zone_page_state(struct page *page,
94584diff --git a/include/linux/xattr.h b/include/linux/xattr.h
94585index 91b0a68..0e9adf6 100644
94586--- a/include/linux/xattr.h
94587+++ b/include/linux/xattr.h
94588@@ -28,7 +28,7 @@ struct xattr_handler {
94589 size_t size, int handler_flags);
94590 int (*set)(struct dentry *dentry, const char *name, const void *buffer,
94591 size_t size, int flags, int handler_flags);
94592-};
94593+} __do_const;
94594
94595 struct xattr {
94596 const char *name;
94597@@ -37,6 +37,9 @@ struct xattr {
94598 };
94599
94600 ssize_t xattr_getsecurity(struct inode *, const char *, void *, size_t);
94601+#ifdef CONFIG_PAX_XATTR_PAX_FLAGS
94602+ssize_t pax_getxattr(struct dentry *, void *, size_t);
94603+#endif
94604 ssize_t vfs_getxattr(struct dentry *, const char *, void *, size_t);
94605 ssize_t vfs_listxattr(struct dentry *d, char *list, size_t size);
94606 int __vfs_setxattr_noperm(struct dentry *, const char *, const void *, size_t, int);
94607diff --git a/include/linux/zlib.h b/include/linux/zlib.h
94608index 92dbbd3..13ab0b3 100644
94609--- a/include/linux/zlib.h
94610+++ b/include/linux/zlib.h
94611@@ -31,6 +31,7 @@
94612 #define _ZLIB_H
94613
94614 #include <linux/zconf.h>
94615+#include <linux/compiler.h>
94616
94617 /* zlib deflate based on ZLIB_VERSION "1.1.3" */
94618 /* zlib inflate based on ZLIB_VERSION "1.2.3" */
94619@@ -179,7 +180,7 @@ typedef z_stream *z_streamp;
94620
94621 /* basic functions */
94622
94623-extern int zlib_deflate_workspacesize (int windowBits, int memLevel);
94624+extern int zlib_deflate_workspacesize (int windowBits, int memLevel) __intentional_overflow(0);
94625 /*
94626 Returns the number of bytes that needs to be allocated for a per-
94627 stream workspace with the specified parameters. A pointer to this
94628diff --git a/include/media/v4l2-dev.h b/include/media/v4l2-dev.h
94629index 3e4fddf..5ec9104 100644
94630--- a/include/media/v4l2-dev.h
94631+++ b/include/media/v4l2-dev.h
94632@@ -75,7 +75,7 @@ struct v4l2_file_operations {
94633 int (*mmap) (struct file *, struct vm_area_struct *);
94634 int (*open) (struct file *);
94635 int (*release) (struct file *);
94636-};
94637+} __do_const;
94638
94639 /*
94640 * Newer version of video_device, handled by videodev2.c
94641diff --git a/include/media/v4l2-device.h b/include/media/v4l2-device.h
94642index ffb69da..040393e 100644
94643--- a/include/media/v4l2-device.h
94644+++ b/include/media/v4l2-device.h
94645@@ -95,7 +95,7 @@ int __must_check v4l2_device_register(struct device *dev, struct v4l2_device *v4
94646 this function returns 0. If the name ends with a digit (e.g. cx18),
94647 then the name will be set to cx18-0 since cx180 looks really odd. */
94648 int v4l2_device_set_name(struct v4l2_device *v4l2_dev, const char *basename,
94649- atomic_t *instance);
94650+ atomic_unchecked_t *instance);
94651
94652 /* Set v4l2_dev->dev to NULL. Call when the USB parent disconnects.
94653 Since the parent disappears this ensures that v4l2_dev doesn't have an
94654diff --git a/include/net/9p/transport.h b/include/net/9p/transport.h
94655index 2a25dec..bf6dd8a 100644
94656--- a/include/net/9p/transport.h
94657+++ b/include/net/9p/transport.h
94658@@ -62,7 +62,7 @@ struct p9_trans_module {
94659 int (*cancelled)(struct p9_client *, struct p9_req_t *req);
94660 int (*zc_request)(struct p9_client *, struct p9_req_t *,
94661 char *, char *, int , int, int, int);
94662-};
94663+} __do_const;
94664
94665 void v9fs_register_trans(struct p9_trans_module *m);
94666 void v9fs_unregister_trans(struct p9_trans_module *m);
94667diff --git a/include/net/af_unix.h b/include/net/af_unix.h
94668index a175ba4..196eb8242 100644
94669--- a/include/net/af_unix.h
94670+++ b/include/net/af_unix.h
94671@@ -36,7 +36,7 @@ struct unix_skb_parms {
94672 u32 secid; /* Security ID */
94673 #endif
94674 u32 consumed;
94675-};
94676+} __randomize_layout;
94677
94678 #define UNIXCB(skb) (*(struct unix_skb_parms *)&((skb)->cb))
94679 #define UNIXSID(skb) (&UNIXCB((skb)).secid)
94680diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
94681index 2239a37..a83461f 100644
94682--- a/include/net/bluetooth/l2cap.h
94683+++ b/include/net/bluetooth/l2cap.h
94684@@ -609,7 +609,7 @@ struct l2cap_ops {
94685 struct sk_buff *(*alloc_skb) (struct l2cap_chan *chan,
94686 unsigned long hdr_len,
94687 unsigned long len, int nb);
94688-};
94689+} __do_const;
94690
94691 struct l2cap_conn {
94692 struct hci_conn *hcon;
94693diff --git a/include/net/bonding.h b/include/net/bonding.h
94694index fda6fee..dbdf83c 100644
94695--- a/include/net/bonding.h
94696+++ b/include/net/bonding.h
94697@@ -665,7 +665,7 @@ extern struct rtnl_link_ops bond_link_ops;
94698
94699 static inline void bond_tx_drop(struct net_device *dev, struct sk_buff *skb)
94700 {
94701- atomic_long_inc(&dev->tx_dropped);
94702+ atomic_long_inc_unchecked(&dev->tx_dropped);
94703 dev_kfree_skb_any(skb);
94704 }
94705
94706diff --git a/include/net/caif/cfctrl.h b/include/net/caif/cfctrl.h
94707index f2ae33d..c457cf0 100644
94708--- a/include/net/caif/cfctrl.h
94709+++ b/include/net/caif/cfctrl.h
94710@@ -52,7 +52,7 @@ struct cfctrl_rsp {
94711 void (*radioset_rsp)(void);
94712 void (*reject_rsp)(struct cflayer *layer, u8 linkid,
94713 struct cflayer *client_layer);
94714-};
94715+} __no_const;
94716
94717 /* Link Setup Parameters for CAIF-Links. */
94718 struct cfctrl_link_param {
94719@@ -101,8 +101,8 @@ struct cfctrl_request_info {
94720 struct cfctrl {
94721 struct cfsrvl serv;
94722 struct cfctrl_rsp res;
94723- atomic_t req_seq_no;
94724- atomic_t rsp_seq_no;
94725+ atomic_unchecked_t req_seq_no;
94726+ atomic_unchecked_t rsp_seq_no;
94727 struct list_head list;
94728 /* Protects from simultaneous access to first_req list */
94729 spinlock_t info_list_lock;
94730diff --git a/include/net/flow.h b/include/net/flow.h
94731index 8109a15..504466d 100644
94732--- a/include/net/flow.h
94733+++ b/include/net/flow.h
94734@@ -231,6 +231,6 @@ void flow_cache_fini(struct net *net);
94735
94736 void flow_cache_flush(struct net *net);
94737 void flow_cache_flush_deferred(struct net *net);
94738-extern atomic_t flow_cache_genid;
94739+extern atomic_unchecked_t flow_cache_genid;
94740
94741 #endif
94742diff --git a/include/net/genetlink.h b/include/net/genetlink.h
94743index 0574abd..0f16881 100644
94744--- a/include/net/genetlink.h
94745+++ b/include/net/genetlink.h
94746@@ -130,7 +130,7 @@ struct genl_ops {
94747 u8 cmd;
94748 u8 internal_flags;
94749 u8 flags;
94750-};
94751+} __do_const;
94752
94753 int __genl_register_family(struct genl_family *family);
94754
94755diff --git a/include/net/gro_cells.h b/include/net/gro_cells.h
94756index 0f712c0..cd762c4 100644
94757--- a/include/net/gro_cells.h
94758+++ b/include/net/gro_cells.h
94759@@ -27,7 +27,7 @@ static inline void gro_cells_receive(struct gro_cells *gcells, struct sk_buff *s
94760 cell = this_cpu_ptr(gcells->cells);
94761
94762 if (skb_queue_len(&cell->napi_skbs) > netdev_max_backlog) {
94763- atomic_long_inc(&dev->rx_dropped);
94764+ atomic_long_inc_unchecked(&dev->rx_dropped);
94765 kfree_skb(skb);
94766 return;
94767 }
94768diff --git a/include/net/inet_connection_sock.h b/include/net/inet_connection_sock.h
94769index 9fe865c..43735aa 100644
94770--- a/include/net/inet_connection_sock.h
94771+++ b/include/net/inet_connection_sock.h
94772@@ -63,7 +63,7 @@ struct inet_connection_sock_af_ops {
94773 int (*bind_conflict)(const struct sock *sk,
94774 const struct inet_bind_bucket *tb, bool relax);
94775 void (*mtu_reduced)(struct sock *sk);
94776-};
94777+} __do_const;
94778
94779 /** inet_connection_sock - INET connection oriented sock
94780 *
94781diff --git a/include/net/inetpeer.h b/include/net/inetpeer.h
94782index 80479ab..0c3f647 100644
94783--- a/include/net/inetpeer.h
94784+++ b/include/net/inetpeer.h
94785@@ -47,7 +47,7 @@ struct inet_peer {
94786 */
94787 union {
94788 struct {
94789- atomic_t rid; /* Frag reception counter */
94790+ atomic_unchecked_t rid; /* Frag reception counter */
94791 };
94792 struct rcu_head rcu;
94793 struct inet_peer *gc_next;
94794diff --git a/include/net/ip.h b/include/net/ip.h
94795index 6cc1eaf..14059b0 100644
94796--- a/include/net/ip.h
94797+++ b/include/net/ip.h
94798@@ -317,7 +317,7 @@ static inline unsigned int ip_skb_dst_mtu(const struct sk_buff *skb)
94799 }
94800 }
94801
94802-u32 ip_idents_reserve(u32 hash, int segs);
94803+u32 ip_idents_reserve(u32 hash, int segs) __intentional_overflow(-1);
94804 void __ip_select_ident(struct iphdr *iph, int segs);
94805
94806 static inline void ip_select_ident_segs(struct sk_buff *skb, struct sock *sk, int segs)
94807diff --git a/include/net/ip_fib.h b/include/net/ip_fib.h
94808index 5bd120e4..03fb812 100644
94809--- a/include/net/ip_fib.h
94810+++ b/include/net/ip_fib.h
94811@@ -170,7 +170,7 @@ __be32 fib_info_update_nh_saddr(struct net *net, struct fib_nh *nh);
94812
94813 #define FIB_RES_SADDR(net, res) \
94814 ((FIB_RES_NH(res).nh_saddr_genid == \
94815- atomic_read(&(net)->ipv4.dev_addr_genid)) ? \
94816+ atomic_read_unchecked(&(net)->ipv4.dev_addr_genid)) ? \
94817 FIB_RES_NH(res).nh_saddr : \
94818 fib_info_update_nh_saddr((net), &FIB_RES_NH(res)))
94819 #define FIB_RES_GW(res) (FIB_RES_NH(res).nh_gw)
94820diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h
94821index 615b20b..fd4cbd8 100644
94822--- a/include/net/ip_vs.h
94823+++ b/include/net/ip_vs.h
94824@@ -534,7 +534,7 @@ struct ip_vs_conn {
94825 struct ip_vs_conn *control; /* Master control connection */
94826 atomic_t n_control; /* Number of controlled ones */
94827 struct ip_vs_dest *dest; /* real server */
94828- atomic_t in_pkts; /* incoming packet counter */
94829+ atomic_unchecked_t in_pkts; /* incoming packet counter */
94830
94831 /* Packet transmitter for different forwarding methods. If it
94832 * mangles the packet, it must return NF_DROP or better NF_STOLEN,
94833@@ -682,7 +682,7 @@ struct ip_vs_dest {
94834 __be16 port; /* port number of the server */
94835 union nf_inet_addr addr; /* IP address of the server */
94836 volatile unsigned int flags; /* dest status flags */
94837- atomic_t conn_flags; /* flags to copy to conn */
94838+ atomic_unchecked_t conn_flags; /* flags to copy to conn */
94839 atomic_t weight; /* server weight */
94840
94841 atomic_t refcnt; /* reference counter */
94842@@ -928,11 +928,11 @@ struct netns_ipvs {
94843 /* ip_vs_lblc */
94844 int sysctl_lblc_expiration;
94845 struct ctl_table_header *lblc_ctl_header;
94846- struct ctl_table *lblc_ctl_table;
94847+ ctl_table_no_const *lblc_ctl_table;
94848 /* ip_vs_lblcr */
94849 int sysctl_lblcr_expiration;
94850 struct ctl_table_header *lblcr_ctl_header;
94851- struct ctl_table *lblcr_ctl_table;
94852+ ctl_table_no_const *lblcr_ctl_table;
94853 /* ip_vs_est */
94854 struct list_head est_list; /* estimator list */
94855 spinlock_t est_lock;
94856diff --git a/include/net/irda/ircomm_tty.h b/include/net/irda/ircomm_tty.h
94857index 8d4f588..2e37ad2 100644
94858--- a/include/net/irda/ircomm_tty.h
94859+++ b/include/net/irda/ircomm_tty.h
94860@@ -33,6 +33,7 @@
94861 #include <linux/termios.h>
94862 #include <linux/timer.h>
94863 #include <linux/tty.h> /* struct tty_struct */
94864+#include <asm/local.h>
94865
94866 #include <net/irda/irias_object.h>
94867 #include <net/irda/ircomm_core.h>
94868diff --git a/include/net/iucv/af_iucv.h b/include/net/iucv/af_iucv.h
94869index 714cc9a..ea05f3e 100644
94870--- a/include/net/iucv/af_iucv.h
94871+++ b/include/net/iucv/af_iucv.h
94872@@ -149,7 +149,7 @@ struct iucv_skb_cb {
94873 struct iucv_sock_list {
94874 struct hlist_head head;
94875 rwlock_t lock;
94876- atomic_t autobind_name;
94877+ atomic_unchecked_t autobind_name;
94878 };
94879
94880 unsigned int iucv_sock_poll(struct file *file, struct socket *sock,
94881diff --git a/include/net/llc_c_ac.h b/include/net/llc_c_ac.h
94882index f3be818..bf46196 100644
94883--- a/include/net/llc_c_ac.h
94884+++ b/include/net/llc_c_ac.h
94885@@ -87,7 +87,7 @@
94886 #define LLC_CONN_AC_STOP_SENDACK_TMR 70
94887 #define LLC_CONN_AC_START_SENDACK_TMR_IF_NOT_RUNNING 71
94888
94889-typedef int (*llc_conn_action_t)(struct sock *sk, struct sk_buff *skb);
94890+typedef int (* const llc_conn_action_t)(struct sock *sk, struct sk_buff *skb);
94891
94892 int llc_conn_ac_clear_remote_busy(struct sock *sk, struct sk_buff *skb);
94893 int llc_conn_ac_conn_ind(struct sock *sk, struct sk_buff *skb);
94894diff --git a/include/net/llc_c_ev.h b/include/net/llc_c_ev.h
94895index 3948cf1..83b28c4 100644
94896--- a/include/net/llc_c_ev.h
94897+++ b/include/net/llc_c_ev.h
94898@@ -125,8 +125,8 @@ static __inline__ struct llc_conn_state_ev *llc_conn_ev(struct sk_buff *skb)
94899 return (struct llc_conn_state_ev *)skb->cb;
94900 }
94901
94902-typedef int (*llc_conn_ev_t)(struct sock *sk, struct sk_buff *skb);
94903-typedef int (*llc_conn_ev_qfyr_t)(struct sock *sk, struct sk_buff *skb);
94904+typedef int (* const llc_conn_ev_t)(struct sock *sk, struct sk_buff *skb);
94905+typedef int (* const llc_conn_ev_qfyr_t)(struct sock *sk, struct sk_buff *skb);
94906
94907 int llc_conn_ev_conn_req(struct sock *sk, struct sk_buff *skb);
94908 int llc_conn_ev_data_req(struct sock *sk, struct sk_buff *skb);
94909diff --git a/include/net/llc_c_st.h b/include/net/llc_c_st.h
94910index 48f3f89..0e92c50 100644
94911--- a/include/net/llc_c_st.h
94912+++ b/include/net/llc_c_st.h
94913@@ -37,7 +37,7 @@ struct llc_conn_state_trans {
94914 u8 next_state;
94915 const llc_conn_ev_qfyr_t *ev_qualifiers;
94916 const llc_conn_action_t *ev_actions;
94917-};
94918+} __do_const;
94919
94920 struct llc_conn_state {
94921 u8 current_state;
94922diff --git a/include/net/llc_s_ac.h b/include/net/llc_s_ac.h
94923index a61b98c..aade1eb 100644
94924--- a/include/net/llc_s_ac.h
94925+++ b/include/net/llc_s_ac.h
94926@@ -23,7 +23,7 @@
94927 #define SAP_ACT_TEST_IND 9
94928
94929 /* All action functions must look like this */
94930-typedef int (*llc_sap_action_t)(struct llc_sap *sap, struct sk_buff *skb);
94931+typedef int (* const llc_sap_action_t)(struct llc_sap *sap, struct sk_buff *skb);
94932
94933 int llc_sap_action_unitdata_ind(struct llc_sap *sap, struct sk_buff *skb);
94934 int llc_sap_action_send_ui(struct llc_sap *sap, struct sk_buff *skb);
94935diff --git a/include/net/llc_s_st.h b/include/net/llc_s_st.h
94936index c4359e2..76dbc4a 100644
94937--- a/include/net/llc_s_st.h
94938+++ b/include/net/llc_s_st.h
94939@@ -20,7 +20,7 @@ struct llc_sap_state_trans {
94940 llc_sap_ev_t ev;
94941 u8 next_state;
94942 const llc_sap_action_t *ev_actions;
94943-};
94944+} __do_const;
94945
94946 struct llc_sap_state {
94947 u8 curr_state;
94948diff --git a/include/net/mac80211.h b/include/net/mac80211.h
94949index d52914b..2b13cec 100644
94950--- a/include/net/mac80211.h
94951+++ b/include/net/mac80211.h
94952@@ -4915,7 +4915,7 @@ struct rate_control_ops {
94953 void (*remove_sta_debugfs)(void *priv, void *priv_sta);
94954
94955 u32 (*get_expected_throughput)(void *priv_sta);
94956-};
94957+} __do_const;
94958
94959 static inline int rate_supported(struct ieee80211_sta *sta,
94960 enum ieee80211_band band,
94961diff --git a/include/net/neighbour.h b/include/net/neighbour.h
94962index 76f7084..8f36e39 100644
94963--- a/include/net/neighbour.h
94964+++ b/include/net/neighbour.h
94965@@ -163,7 +163,7 @@ struct neigh_ops {
94966 void (*error_report)(struct neighbour *, struct sk_buff *);
94967 int (*output)(struct neighbour *, struct sk_buff *);
94968 int (*connected_output)(struct neighbour *, struct sk_buff *);
94969-};
94970+} __do_const;
94971
94972 struct pneigh_entry {
94973 struct pneigh_entry *next;
94974@@ -217,7 +217,7 @@ struct neigh_table {
94975 struct neigh_statistics __percpu *stats;
94976 struct neigh_hash_table __rcu *nht;
94977 struct pneigh_entry **phash_buckets;
94978-};
94979+} __randomize_layout;
94980
94981 enum {
94982 NEIGH_ARP_TABLE = 0,
94983diff --git a/include/net/net_namespace.h b/include/net/net_namespace.h
94984index 36faf49..6927638 100644
94985--- a/include/net/net_namespace.h
94986+++ b/include/net/net_namespace.h
94987@@ -131,8 +131,8 @@ struct net {
94988 struct netns_ipvs *ipvs;
94989 #endif
94990 struct sock *diag_nlsk;
94991- atomic_t fnhe_genid;
94992-};
94993+ atomic_unchecked_t fnhe_genid;
94994+} __randomize_layout;
94995
94996 #include <linux/seq_file_net.h>
94997
94998@@ -288,7 +288,11 @@ static inline struct net *read_pnet(struct net * const *pnet)
94999 #define __net_init __init
95000 #define __net_exit __exit_refok
95001 #define __net_initdata __initdata
95002+#ifdef CONSTIFY_PLUGIN
95003 #define __net_initconst __initconst
95004+#else
95005+#define __net_initconst __initdata
95006+#endif
95007 #endif
95008
95009 int peernet2id(struct net *net, struct net *peer);
95010@@ -301,7 +305,7 @@ struct pernet_operations {
95011 void (*exit_batch)(struct list_head *net_exit_list);
95012 int *id;
95013 size_t size;
95014-};
95015+} __do_const;
95016
95017 /*
95018 * Use these carefully. If you implement a network device and it
95019@@ -349,12 +353,12 @@ static inline void unregister_net_sysctl_table(struct ctl_table_header *header)
95020
95021 static inline int rt_genid_ipv4(struct net *net)
95022 {
95023- return atomic_read(&net->ipv4.rt_genid);
95024+ return atomic_read_unchecked(&net->ipv4.rt_genid);
95025 }
95026
95027 static inline void rt_genid_bump_ipv4(struct net *net)
95028 {
95029- atomic_inc(&net->ipv4.rt_genid);
95030+ atomic_inc_unchecked(&net->ipv4.rt_genid);
95031 }
95032
95033 extern void (*__fib6_flush_trees)(struct net *net);
95034@@ -381,12 +385,12 @@ static inline void rt_genid_bump_all(struct net *net)
95035
95036 static inline int fnhe_genid(struct net *net)
95037 {
95038- return atomic_read(&net->fnhe_genid);
95039+ return atomic_read_unchecked(&net->fnhe_genid);
95040 }
95041
95042 static inline void fnhe_genid_bump(struct net *net)
95043 {
95044- atomic_inc(&net->fnhe_genid);
95045+ atomic_inc_unchecked(&net->fnhe_genid);
95046 }
95047
95048 #endif /* __NET_NET_NAMESPACE_H */
95049diff --git a/include/net/netlink.h b/include/net/netlink.h
95050index e010ee8..405b9f4 100644
95051--- a/include/net/netlink.h
95052+++ b/include/net/netlink.h
95053@@ -518,7 +518,7 @@ static inline void nlmsg_trim(struct sk_buff *skb, const void *mark)
95054 {
95055 if (mark) {
95056 WARN_ON((unsigned char *) mark < skb->data);
95057- skb_trim(skb, (unsigned char *) mark - skb->data);
95058+ skb_trim(skb, (const unsigned char *) mark - skb->data);
95059 }
95060 }
95061
95062diff --git a/include/net/netns/conntrack.h b/include/net/netns/conntrack.h
95063index 29d6a94..235d3d84 100644
95064--- a/include/net/netns/conntrack.h
95065+++ b/include/net/netns/conntrack.h
95066@@ -14,10 +14,10 @@ struct nf_conntrack_ecache;
95067 struct nf_proto_net {
95068 #ifdef CONFIG_SYSCTL
95069 struct ctl_table_header *ctl_table_header;
95070- struct ctl_table *ctl_table;
95071+ ctl_table_no_const *ctl_table;
95072 #ifdef CONFIG_NF_CONNTRACK_PROC_COMPAT
95073 struct ctl_table_header *ctl_compat_header;
95074- struct ctl_table *ctl_compat_table;
95075+ ctl_table_no_const *ctl_compat_table;
95076 #endif
95077 #endif
95078 unsigned int users;
95079@@ -60,7 +60,7 @@ struct nf_ip_net {
95080 struct nf_icmp_net icmpv6;
95081 #if defined(CONFIG_SYSCTL) && defined(CONFIG_NF_CONNTRACK_PROC_COMPAT)
95082 struct ctl_table_header *ctl_table_header;
95083- struct ctl_table *ctl_table;
95084+ ctl_table_no_const *ctl_table;
95085 #endif
95086 };
95087
95088diff --git a/include/net/netns/ipv4.h b/include/net/netns/ipv4.h
95089index dbe2254..ed0c151 100644
95090--- a/include/net/netns/ipv4.h
95091+++ b/include/net/netns/ipv4.h
95092@@ -87,7 +87,7 @@ struct netns_ipv4 {
95093
95094 struct ping_group_range ping_group_range;
95095
95096- atomic_t dev_addr_genid;
95097+ atomic_unchecked_t dev_addr_genid;
95098
95099 #ifdef CONFIG_SYSCTL
95100 unsigned long *sysctl_local_reserved_ports;
95101@@ -101,6 +101,6 @@ struct netns_ipv4 {
95102 struct fib_rules_ops *mr_rules_ops;
95103 #endif
95104 #endif
95105- atomic_t rt_genid;
95106+ atomic_unchecked_t rt_genid;
95107 };
95108 #endif
95109diff --git a/include/net/netns/ipv6.h b/include/net/netns/ipv6.h
95110index 69ae41f..4f94868 100644
95111--- a/include/net/netns/ipv6.h
95112+++ b/include/net/netns/ipv6.h
95113@@ -75,8 +75,8 @@ struct netns_ipv6 {
95114 struct fib_rules_ops *mr6_rules_ops;
95115 #endif
95116 #endif
95117- atomic_t dev_addr_genid;
95118- atomic_t fib6_sernum;
95119+ atomic_unchecked_t dev_addr_genid;
95120+ atomic_unchecked_t fib6_sernum;
95121 };
95122
95123 #if IS_ENABLED(CONFIG_NF_DEFRAG_IPV6)
95124diff --git a/include/net/netns/xfrm.h b/include/net/netns/xfrm.h
95125index 730d82a..045f2c4 100644
95126--- a/include/net/netns/xfrm.h
95127+++ b/include/net/netns/xfrm.h
95128@@ -78,7 +78,7 @@ struct netns_xfrm {
95129
95130 /* flow cache part */
95131 struct flow_cache flow_cache_global;
95132- atomic_t flow_cache_genid;
95133+ atomic_unchecked_t flow_cache_genid;
95134 struct list_head flow_cache_gc_list;
95135 spinlock_t flow_cache_gc_lock;
95136 struct work_struct flow_cache_gc_work;
95137diff --git a/include/net/ping.h b/include/net/ping.h
95138index cc16d41..664f40b 100644
95139--- a/include/net/ping.h
95140+++ b/include/net/ping.h
95141@@ -54,7 +54,7 @@ struct ping_iter_state {
95142
95143 extern struct proto ping_prot;
95144 #if IS_ENABLED(CONFIG_IPV6)
95145-extern struct pingv6_ops pingv6_ops;
95146+extern struct pingv6_ops *pingv6_ops;
95147 #endif
95148
95149 struct pingfakehdr {
95150diff --git a/include/net/protocol.h b/include/net/protocol.h
95151index d6fcc1f..ca277058 100644
95152--- a/include/net/protocol.h
95153+++ b/include/net/protocol.h
95154@@ -49,7 +49,7 @@ struct net_protocol {
95155 * socket lookup?
95156 */
95157 icmp_strict_tag_validation:1;
95158-};
95159+} __do_const;
95160
95161 #if IS_ENABLED(CONFIG_IPV6)
95162 struct inet6_protocol {
95163@@ -62,7 +62,7 @@ struct inet6_protocol {
95164 u8 type, u8 code, int offset,
95165 __be32 info);
95166 unsigned int flags; /* INET6_PROTO_xxx */
95167-};
95168+} __do_const;
95169
95170 #define INET6_PROTO_NOPOLICY 0x1
95171 #define INET6_PROTO_FINAL 0x2
95172diff --git a/include/net/rtnetlink.h b/include/net/rtnetlink.h
95173index 6c6d539..af70817 100644
95174--- a/include/net/rtnetlink.h
95175+++ b/include/net/rtnetlink.h
95176@@ -95,7 +95,7 @@ struct rtnl_link_ops {
95177 const struct net_device *dev,
95178 const struct net_device *slave_dev);
95179 struct net *(*get_link_net)(const struct net_device *dev);
95180-};
95181+} __do_const;
95182
95183 int __rtnl_link_register(struct rtnl_link_ops *ops);
95184 void __rtnl_link_unregister(struct rtnl_link_ops *ops);
95185diff --git a/include/net/sctp/checksum.h b/include/net/sctp/checksum.h
95186index 4a5b9a3..ca27d73 100644
95187--- a/include/net/sctp/checksum.h
95188+++ b/include/net/sctp/checksum.h
95189@@ -61,8 +61,8 @@ static inline __le32 sctp_compute_cksum(const struct sk_buff *skb,
95190 unsigned int offset)
95191 {
95192 struct sctphdr *sh = sctp_hdr(skb);
95193- __le32 ret, old = sh->checksum;
95194- const struct skb_checksum_ops ops = {
95195+ __le32 ret, old = sh->checksum;
95196+ static const struct skb_checksum_ops ops = {
95197 .update = sctp_csum_update,
95198 .combine = sctp_csum_combine,
95199 };
95200diff --git a/include/net/sctp/sm.h b/include/net/sctp/sm.h
95201index 487ef34..d457f98 100644
95202--- a/include/net/sctp/sm.h
95203+++ b/include/net/sctp/sm.h
95204@@ -80,7 +80,7 @@ typedef void (sctp_timer_event_t) (unsigned long);
95205 typedef struct {
95206 sctp_state_fn_t *fn;
95207 const char *name;
95208-} sctp_sm_table_entry_t;
95209+} __do_const sctp_sm_table_entry_t;
95210
95211 /* A naming convention of "sctp_sf_xxx" applies to all the state functions
95212 * currently in use.
95213@@ -292,7 +292,7 @@ __u32 sctp_generate_tag(const struct sctp_endpoint *);
95214 __u32 sctp_generate_tsn(const struct sctp_endpoint *);
95215
95216 /* Extern declarations for major data structures. */
95217-extern sctp_timer_event_t *sctp_timer_events[SCTP_NUM_TIMEOUT_TYPES];
95218+extern sctp_timer_event_t * const sctp_timer_events[SCTP_NUM_TIMEOUT_TYPES];
95219
95220
95221 /* Get the size of a DATA chunk payload. */
95222diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h
95223index 2bb2fcf..d17c291 100644
95224--- a/include/net/sctp/structs.h
95225+++ b/include/net/sctp/structs.h
95226@@ -509,7 +509,7 @@ struct sctp_pf {
95227 void (*to_sk_saddr)(union sctp_addr *, struct sock *sk);
95228 void (*to_sk_daddr)(union sctp_addr *, struct sock *sk);
95229 struct sctp_af *af;
95230-};
95231+} __do_const;
95232
95233
95234 /* Structure to track chunk fragments that have been acked, but peer
95235diff --git a/include/net/sock.h b/include/net/sock.h
95236index e4079c2..79c5d3a 100644
95237--- a/include/net/sock.h
95238+++ b/include/net/sock.h
95239@@ -362,7 +362,7 @@ struct sock {
95240 unsigned int sk_napi_id;
95241 unsigned int sk_ll_usec;
95242 #endif
95243- atomic_t sk_drops;
95244+ atomic_unchecked_t sk_drops;
95245 int sk_rcvbuf;
95246
95247 struct sk_filter __rcu *sk_filter;
95248@@ -1039,7 +1039,7 @@ struct proto {
95249 void (*destroy_cgroup)(struct mem_cgroup *memcg);
95250 struct cg_proto *(*proto_cgroup)(struct mem_cgroup *memcg);
95251 #endif
95252-};
95253+} __randomize_layout;
95254
95255 /*
95256 * Bits in struct cg_proto.flags
95257@@ -1212,7 +1212,7 @@ static inline void memcg_memory_allocated_sub(struct cg_proto *prot,
95258 page_counter_uncharge(&prot->memory_allocated, amt);
95259 }
95260
95261-static inline long
95262+static inline long __intentional_overflow(-1)
95263 sk_memory_allocated(const struct sock *sk)
95264 {
95265 struct proto *prot = sk->sk_prot;
95266@@ -1778,7 +1778,7 @@ static inline void sk_nocaps_add(struct sock *sk, netdev_features_t flags)
95267 }
95268
95269 static inline int skb_do_copy_data_nocache(struct sock *sk, struct sk_buff *skb,
95270- struct iov_iter *from, char *to,
95271+ struct iov_iter *from, unsigned char *to,
95272 int copy, int offset)
95273 {
95274 if (skb->ip_summed == CHECKSUM_NONE) {
95275@@ -2025,7 +2025,7 @@ static inline void sk_stream_moderate_sndbuf(struct sock *sk)
95276 }
95277 }
95278
95279-struct sk_buff *sk_stream_alloc_skb(struct sock *sk, int size, gfp_t gfp);
95280+struct sk_buff * __intentional_overflow(0) sk_stream_alloc_skb(struct sock *sk, int size, gfp_t gfp);
95281
95282 /**
95283 * sk_page_frag - return an appropriate page_frag
95284diff --git a/include/net/tcp.h b/include/net/tcp.h
95285index 8d6b983..5813205 100644
95286--- a/include/net/tcp.h
95287+++ b/include/net/tcp.h
95288@@ -516,7 +516,7 @@ void tcp_retransmit_timer(struct sock *sk);
95289 void tcp_xmit_retransmit_queue(struct sock *);
95290 void tcp_simple_retransmit(struct sock *);
95291 int tcp_trim_head(struct sock *, struct sk_buff *, u32);
95292-int tcp_fragment(struct sock *, struct sk_buff *, u32, unsigned int, gfp_t);
95293+int __intentional_overflow(3) tcp_fragment(struct sock *, struct sk_buff *, u32, unsigned int, gfp_t);
95294
95295 void tcp_send_probe0(struct sock *);
95296 void tcp_send_partial(struct sock *);
95297@@ -694,8 +694,8 @@ static inline u32 tcp_skb_timestamp(const struct sk_buff *skb)
95298 * If this grows please adjust skbuff.h:skbuff->cb[xxx] size appropriately.
95299 */
95300 struct tcp_skb_cb {
95301- __u32 seq; /* Starting sequence number */
95302- __u32 end_seq; /* SEQ + FIN + SYN + datalen */
95303+ __u32 seq __intentional_overflow(0); /* Starting sequence number */
95304+ __u32 end_seq __intentional_overflow(0); /* SEQ + FIN + SYN + datalen */
95305 union {
95306 /* Note : tcp_tw_isn is used in input path only
95307 * (isn chosen by tcp_timewait_state_process())
95308@@ -720,7 +720,7 @@ struct tcp_skb_cb {
95309
95310 __u8 ip_dsfield; /* IPv4 tos or IPv6 dsfield */
95311 /* 1 byte hole */
95312- __u32 ack_seq; /* Sequence number ACK'd */
95313+ __u32 ack_seq __intentional_overflow(0); /* Sequence number ACK'd */
95314 union {
95315 struct inet_skb_parm h4;
95316 #if IS_ENABLED(CONFIG_IPV6)
95317diff --git a/include/net/xfrm.h b/include/net/xfrm.h
95318index dc4865e..152ee4c 100644
95319--- a/include/net/xfrm.h
95320+++ b/include/net/xfrm.h
95321@@ -285,7 +285,6 @@ struct xfrm_dst;
95322 struct xfrm_policy_afinfo {
95323 unsigned short family;
95324 struct dst_ops *dst_ops;
95325- void (*garbage_collect)(struct net *net);
95326 struct dst_entry *(*dst_lookup)(struct net *net, int tos,
95327 const xfrm_address_t *saddr,
95328 const xfrm_address_t *daddr);
95329@@ -303,7 +302,7 @@ struct xfrm_policy_afinfo {
95330 struct net_device *dev,
95331 const struct flowi *fl);
95332 struct dst_entry *(*blackhole_route)(struct net *net, struct dst_entry *orig);
95333-};
95334+} __do_const;
95335
95336 int xfrm_policy_register_afinfo(struct xfrm_policy_afinfo *afinfo);
95337 int xfrm_policy_unregister_afinfo(struct xfrm_policy_afinfo *afinfo);
95338@@ -342,7 +341,7 @@ struct xfrm_state_afinfo {
95339 int (*transport_finish)(struct sk_buff *skb,
95340 int async);
95341 void (*local_error)(struct sk_buff *skb, u32 mtu);
95342-};
95343+} __do_const;
95344
95345 int xfrm_state_register_afinfo(struct xfrm_state_afinfo *afinfo);
95346 int xfrm_state_unregister_afinfo(struct xfrm_state_afinfo *afinfo);
95347@@ -437,7 +436,7 @@ struct xfrm_mode {
95348 struct module *owner;
95349 unsigned int encap;
95350 int flags;
95351-};
95352+} __do_const;
95353
95354 /* Flags for xfrm_mode. */
95355 enum {
95356@@ -534,7 +533,7 @@ struct xfrm_policy {
95357 struct timer_list timer;
95358
95359 struct flow_cache_object flo;
95360- atomic_t genid;
95361+ atomic_unchecked_t genid;
95362 u32 priority;
95363 u32 index;
95364 struct xfrm_mark mark;
95365@@ -1167,6 +1166,7 @@ static inline void xfrm_sk_free_policy(struct sock *sk)
95366 }
95367
95368 void xfrm_garbage_collect(struct net *net);
95369+void xfrm_garbage_collect_deferred(struct net *net);
95370
95371 #else
95372
95373@@ -1205,6 +1205,9 @@ static inline int xfrm6_policy_check_reverse(struct sock *sk, int dir,
95374 static inline void xfrm_garbage_collect(struct net *net)
95375 {
95376 }
95377+static inline void xfrm_garbage_collect_deferred(struct net *net)
95378+{
95379+}
95380 #endif
95381
95382 static __inline__
95383diff --git a/include/rdma/iw_cm.h b/include/rdma/iw_cm.h
95384index 1017e0b..227aa4d 100644
95385--- a/include/rdma/iw_cm.h
95386+++ b/include/rdma/iw_cm.h
95387@@ -122,7 +122,7 @@ struct iw_cm_verbs {
95388 int backlog);
95389
95390 int (*destroy_listen)(struct iw_cm_id *cm_id);
95391-};
95392+} __no_const;
95393
95394 /**
95395 * iw_create_cm_id - Create an IW CM identifier.
95396diff --git a/include/scsi/libfc.h b/include/scsi/libfc.h
95397index 93d14da..734b3d8 100644
95398--- a/include/scsi/libfc.h
95399+++ b/include/scsi/libfc.h
95400@@ -771,6 +771,7 @@ struct libfc_function_template {
95401 */
95402 void (*disc_stop_final) (struct fc_lport *);
95403 };
95404+typedef struct libfc_function_template __no_const libfc_function_template_no_const;
95405
95406 /**
95407 * struct fc_disc - Discovery context
95408@@ -875,7 +876,7 @@ struct fc_lport {
95409 struct fc_vport *vport;
95410
95411 /* Operational Information */
95412- struct libfc_function_template tt;
95413+ libfc_function_template_no_const tt;
95414 u8 link_up;
95415 u8 qfull;
95416 enum fc_lport_state state;
95417diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h
95418index a4c9336..d6f8f34 100644
95419--- a/include/scsi/scsi_device.h
95420+++ b/include/scsi/scsi_device.h
95421@@ -185,9 +185,9 @@ struct scsi_device {
95422 unsigned int max_device_blocked; /* what device_blocked counts down from */
95423 #define SCSI_DEFAULT_DEVICE_BLOCKED 3
95424
95425- atomic_t iorequest_cnt;
95426- atomic_t iodone_cnt;
95427- atomic_t ioerr_cnt;
95428+ atomic_unchecked_t iorequest_cnt;
95429+ atomic_unchecked_t iodone_cnt;
95430+ atomic_unchecked_t ioerr_cnt;
95431
95432 struct device sdev_gendev,
95433 sdev_dev;
95434diff --git a/include/scsi/scsi_driver.h b/include/scsi/scsi_driver.h
95435index 891a658..fcd68df 100644
95436--- a/include/scsi/scsi_driver.h
95437+++ b/include/scsi/scsi_driver.h
95438@@ -14,7 +14,7 @@ struct scsi_driver {
95439 void (*rescan)(struct device *);
95440 int (*init_command)(struct scsi_cmnd *);
95441 void (*uninit_command)(struct scsi_cmnd *);
95442- int (*done)(struct scsi_cmnd *);
95443+ unsigned int (*done)(struct scsi_cmnd *);
95444 int (*eh_action)(struct scsi_cmnd *, int);
95445 };
95446 #define to_scsi_driver(drv) \
95447diff --git a/include/scsi/scsi_transport_fc.h b/include/scsi/scsi_transport_fc.h
95448index 007a0bc..7188db8 100644
95449--- a/include/scsi/scsi_transport_fc.h
95450+++ b/include/scsi/scsi_transport_fc.h
95451@@ -756,7 +756,8 @@ struct fc_function_template {
95452 unsigned long show_host_system_hostname:1;
95453
95454 unsigned long disable_target_scan:1;
95455-};
95456+} __do_const;
95457+typedef struct fc_function_template __no_const fc_function_template_no_const;
95458
95459
95460 /**
95461diff --git a/include/sound/compress_driver.h b/include/sound/compress_driver.h
95462index f48089d..73abe48 100644
95463--- a/include/sound/compress_driver.h
95464+++ b/include/sound/compress_driver.h
95465@@ -130,7 +130,7 @@ struct snd_compr_ops {
95466 struct snd_compr_caps *caps);
95467 int (*get_codec_caps) (struct snd_compr_stream *stream,
95468 struct snd_compr_codec_caps *codec);
95469-};
95470+} __no_const;
95471
95472 /**
95473 * struct snd_compr: Compressed device
95474diff --git a/include/sound/soc.h b/include/sound/soc.h
95475index 0d1ade1..34e77d3 100644
95476--- a/include/sound/soc.h
95477+++ b/include/sound/soc.h
95478@@ -856,7 +856,7 @@ struct snd_soc_codec_driver {
95479 enum snd_soc_dapm_type, int);
95480
95481 bool ignore_pmdown_time; /* Doesn't benefit from pmdown delay */
95482-};
95483+} __do_const;
95484
95485 /* SoC platform interface */
95486 struct snd_soc_platform_driver {
95487@@ -883,7 +883,7 @@ struct snd_soc_platform_driver {
95488 const struct snd_compr_ops *compr_ops;
95489
95490 int (*bespoke_trigger)(struct snd_pcm_substream *, int);
95491-};
95492+} __do_const;
95493
95494 struct snd_soc_dai_link_component {
95495 const char *name;
95496diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h
95497index 985ca4c..b55b54a 100644
95498--- a/include/target/target_core_base.h
95499+++ b/include/target/target_core_base.h
95500@@ -767,7 +767,7 @@ struct se_device {
95501 atomic_long_t write_bytes;
95502 /* Active commands on this virtual SE device */
95503 atomic_t simple_cmds;
95504- atomic_t dev_ordered_id;
95505+ atomic_unchecked_t dev_ordered_id;
95506 atomic_t dev_ordered_sync;
95507 atomic_t dev_qf_count;
95508 int export_count;
95509diff --git a/include/trace/events/fs.h b/include/trace/events/fs.h
95510new file mode 100644
95511index 0000000..fb634b7
95512--- /dev/null
95513+++ b/include/trace/events/fs.h
95514@@ -0,0 +1,53 @@
95515+#undef TRACE_SYSTEM
95516+#define TRACE_SYSTEM fs
95517+
95518+#if !defined(_TRACE_FS_H) || defined(TRACE_HEADER_MULTI_READ)
95519+#define _TRACE_FS_H
95520+
95521+#include <linux/fs.h>
95522+#include <linux/tracepoint.h>
95523+
95524+TRACE_EVENT(do_sys_open,
95525+
95526+ TP_PROTO(const char *filename, int flags, int mode),
95527+
95528+ TP_ARGS(filename, flags, mode),
95529+
95530+ TP_STRUCT__entry(
95531+ __string( filename, filename )
95532+ __field( int, flags )
95533+ __field( int, mode )
95534+ ),
95535+
95536+ TP_fast_assign(
95537+ __assign_str(filename, filename);
95538+ __entry->flags = flags;
95539+ __entry->mode = mode;
95540+ ),
95541+
95542+ TP_printk("\"%s\" %x %o",
95543+ __get_str(filename), __entry->flags, __entry->mode)
95544+);
95545+
95546+TRACE_EVENT(open_exec,
95547+
95548+ TP_PROTO(const char *filename),
95549+
95550+ TP_ARGS(filename),
95551+
95552+ TP_STRUCT__entry(
95553+ __string( filename, filename )
95554+ ),
95555+
95556+ TP_fast_assign(
95557+ __assign_str(filename, filename);
95558+ ),
95559+
95560+ TP_printk("\"%s\"",
95561+ __get_str(filename))
95562+);
95563+
95564+#endif /* _TRACE_FS_H */
95565+
95566+/* This part must be outside protection */
95567+#include <trace/define_trace.h>
95568diff --git a/include/trace/events/irq.h b/include/trace/events/irq.h
95569index 3608beb..df39d8a 100644
95570--- a/include/trace/events/irq.h
95571+++ b/include/trace/events/irq.h
95572@@ -36,7 +36,7 @@ struct softirq_action;
95573 */
95574 TRACE_EVENT(irq_handler_entry,
95575
95576- TP_PROTO(int irq, struct irqaction *action),
95577+ TP_PROTO(int irq, const struct irqaction *action),
95578
95579 TP_ARGS(irq, action),
95580
95581@@ -66,7 +66,7 @@ TRACE_EVENT(irq_handler_entry,
95582 */
95583 TRACE_EVENT(irq_handler_exit,
95584
95585- TP_PROTO(int irq, struct irqaction *action, int ret),
95586+ TP_PROTO(int irq, const struct irqaction *action, int ret),
95587
95588 TP_ARGS(irq, action, ret),
95589
95590diff --git a/include/uapi/drm/i915_drm.h b/include/uapi/drm/i915_drm.h
95591index 6eed16b..3e05750 100644
95592--- a/include/uapi/drm/i915_drm.h
95593+++ b/include/uapi/drm/i915_drm.h
95594@@ -347,6 +347,7 @@ typedef struct drm_i915_irq_wait {
95595 #define I915_PARAM_HAS_COHERENT_PHYS_GTT 29
95596 #define I915_PARAM_MMAP_VERSION 30
95597 #define I915_PARAM_HAS_BSD2 31
95598+#define I915_PARAM_HAS_LEGACY_CONTEXT 35
95599
95600 typedef struct drm_i915_getparam {
95601 int param;
95602diff --git a/include/uapi/linux/a.out.h b/include/uapi/linux/a.out.h
95603index 7caf44c..23c6f27 100644
95604--- a/include/uapi/linux/a.out.h
95605+++ b/include/uapi/linux/a.out.h
95606@@ -39,6 +39,14 @@ enum machine_type {
95607 M_MIPS2 = 152 /* MIPS R6000/R4000 binary */
95608 };
95609
95610+/* Constants for the N_FLAGS field */
95611+#define F_PAX_PAGEEXEC 1 /* Paging based non-executable pages */
95612+#define F_PAX_EMUTRAMP 2 /* Emulate trampolines */
95613+#define F_PAX_MPROTECT 4 /* Restrict mprotect() */
95614+#define F_PAX_RANDMMAP 8 /* Randomize mmap() base */
95615+/*#define F_PAX_RANDEXEC 16*/ /* Randomize ET_EXEC base */
95616+#define F_PAX_SEGMEXEC 32 /* Segmentation based non-executable pages */
95617+
95618 #if !defined (N_MAGIC)
95619 #define N_MAGIC(exec) ((exec).a_info & 0xffff)
95620 #endif
95621diff --git a/include/uapi/linux/bcache.h b/include/uapi/linux/bcache.h
95622index 22b6ad3..aeba37e 100644
95623--- a/include/uapi/linux/bcache.h
95624+++ b/include/uapi/linux/bcache.h
95625@@ -5,6 +5,7 @@
95626 * Bcache on disk data structures
95627 */
95628
95629+#include <linux/compiler.h>
95630 #include <asm/types.h>
95631
95632 #define BITMASK(name, type, field, offset, size) \
95633@@ -20,8 +21,8 @@ static inline void SET_##name(type *k, __u64 v) \
95634 /* Btree keys - all units are in sectors */
95635
95636 struct bkey {
95637- __u64 high;
95638- __u64 low;
95639+ __u64 high __intentional_overflow(-1);
95640+ __u64 low __intentional_overflow(-1);
95641 __u64 ptr[];
95642 };
95643
95644diff --git a/include/uapi/linux/byteorder/little_endian.h b/include/uapi/linux/byteorder/little_endian.h
95645index d876736..ccce5c0 100644
95646--- a/include/uapi/linux/byteorder/little_endian.h
95647+++ b/include/uapi/linux/byteorder/little_endian.h
95648@@ -42,51 +42,51 @@
95649
95650 static inline __le64 __cpu_to_le64p(const __u64 *p)
95651 {
95652- return (__force __le64)*p;
95653+ return (__force const __le64)*p;
95654 }
95655-static inline __u64 __le64_to_cpup(const __le64 *p)
95656+static inline __u64 __intentional_overflow(-1) __le64_to_cpup(const __le64 *p)
95657 {
95658- return (__force __u64)*p;
95659+ return (__force const __u64)*p;
95660 }
95661 static inline __le32 __cpu_to_le32p(const __u32 *p)
95662 {
95663- return (__force __le32)*p;
95664+ return (__force const __le32)*p;
95665 }
95666 static inline __u32 __le32_to_cpup(const __le32 *p)
95667 {
95668- return (__force __u32)*p;
95669+ return (__force const __u32)*p;
95670 }
95671 static inline __le16 __cpu_to_le16p(const __u16 *p)
95672 {
95673- return (__force __le16)*p;
95674+ return (__force const __le16)*p;
95675 }
95676 static inline __u16 __le16_to_cpup(const __le16 *p)
95677 {
95678- return (__force __u16)*p;
95679+ return (__force const __u16)*p;
95680 }
95681 static inline __be64 __cpu_to_be64p(const __u64 *p)
95682 {
95683- return (__force __be64)__swab64p(p);
95684+ return (__force const __be64)__swab64p(p);
95685 }
95686 static inline __u64 __be64_to_cpup(const __be64 *p)
95687 {
95688- return __swab64p((__u64 *)p);
95689+ return __swab64p((const __u64 *)p);
95690 }
95691 static inline __be32 __cpu_to_be32p(const __u32 *p)
95692 {
95693- return (__force __be32)__swab32p(p);
95694+ return (__force const __be32)__swab32p(p);
95695 }
95696-static inline __u32 __be32_to_cpup(const __be32 *p)
95697+static inline __u32 __intentional_overflow(-1) __be32_to_cpup(const __be32 *p)
95698 {
95699- return __swab32p((__u32 *)p);
95700+ return __swab32p((const __u32 *)p);
95701 }
95702 static inline __be16 __cpu_to_be16p(const __u16 *p)
95703 {
95704- return (__force __be16)__swab16p(p);
95705+ return (__force const __be16)__swab16p(p);
95706 }
95707 static inline __u16 __be16_to_cpup(const __be16 *p)
95708 {
95709- return __swab16p((__u16 *)p);
95710+ return __swab16p((const __u16 *)p);
95711 }
95712 #define __cpu_to_le64s(x) do { (void)(x); } while (0)
95713 #define __le64_to_cpus(x) do { (void)(x); } while (0)
95714diff --git a/include/uapi/linux/elf.h b/include/uapi/linux/elf.h
95715index 71e1d0e..6cc9caf 100644
95716--- a/include/uapi/linux/elf.h
95717+++ b/include/uapi/linux/elf.h
95718@@ -37,6 +37,17 @@ typedef __s64 Elf64_Sxword;
95719 #define PT_GNU_EH_FRAME 0x6474e550
95720
95721 #define PT_GNU_STACK (PT_LOOS + 0x474e551)
95722+#define PT_GNU_RELRO (PT_LOOS + 0x474e552)
95723+
95724+#define PT_PAX_FLAGS (PT_LOOS + 0x5041580)
95725+
95726+/* Constants for the e_flags field */
95727+#define EF_PAX_PAGEEXEC 1 /* Paging based non-executable pages */
95728+#define EF_PAX_EMUTRAMP 2 /* Emulate trampolines */
95729+#define EF_PAX_MPROTECT 4 /* Restrict mprotect() */
95730+#define EF_PAX_RANDMMAP 8 /* Randomize mmap() base */
95731+/*#define EF_PAX_RANDEXEC 16*/ /* Randomize ET_EXEC base */
95732+#define EF_PAX_SEGMEXEC 32 /* Segmentation based non-executable pages */
95733
95734 /*
95735 * Extended Numbering
95736@@ -94,6 +105,8 @@ typedef __s64 Elf64_Sxword;
95737 #define DT_DEBUG 21
95738 #define DT_TEXTREL 22
95739 #define DT_JMPREL 23
95740+#define DT_FLAGS 30
95741+ #define DF_TEXTREL 0x00000004
95742 #define DT_ENCODING 32
95743 #define OLD_DT_LOOS 0x60000000
95744 #define DT_LOOS 0x6000000d
95745@@ -240,6 +253,19 @@ typedef struct elf64_hdr {
95746 #define PF_W 0x2
95747 #define PF_X 0x1
95748
95749+#define PF_PAGEEXEC (1U << 4) /* Enable PAGEEXEC */
95750+#define PF_NOPAGEEXEC (1U << 5) /* Disable PAGEEXEC */
95751+#define PF_SEGMEXEC (1U << 6) /* Enable SEGMEXEC */
95752+#define PF_NOSEGMEXEC (1U << 7) /* Disable SEGMEXEC */
95753+#define PF_MPROTECT (1U << 8) /* Enable MPROTECT */
95754+#define PF_NOMPROTECT (1U << 9) /* Disable MPROTECT */
95755+/*#define PF_RANDEXEC (1U << 10)*/ /* Enable RANDEXEC */
95756+/*#define PF_NORANDEXEC (1U << 11)*/ /* Disable RANDEXEC */
95757+#define PF_EMUTRAMP (1U << 12) /* Enable EMUTRAMP */
95758+#define PF_NOEMUTRAMP (1U << 13) /* Disable EMUTRAMP */
95759+#define PF_RANDMMAP (1U << 14) /* Enable RANDMMAP */
95760+#define PF_NORANDMMAP (1U << 15) /* Disable RANDMMAP */
95761+
95762 typedef struct elf32_phdr{
95763 Elf32_Word p_type;
95764 Elf32_Off p_offset;
95765@@ -332,6 +358,8 @@ typedef struct elf64_shdr {
95766 #define EI_OSABI 7
95767 #define EI_PAD 8
95768
95769+#define EI_PAX 14
95770+
95771 #define ELFMAG0 0x7f /* EI_MAG */
95772 #define ELFMAG1 'E'
95773 #define ELFMAG2 'L'
95774diff --git a/include/uapi/linux/personality.h b/include/uapi/linux/personality.h
95775index aa169c4..6a2771d 100644
95776--- a/include/uapi/linux/personality.h
95777+++ b/include/uapi/linux/personality.h
95778@@ -30,6 +30,7 @@ enum {
95779 #define PER_CLEAR_ON_SETID (READ_IMPLIES_EXEC | \
95780 ADDR_NO_RANDOMIZE | \
95781 ADDR_COMPAT_LAYOUT | \
95782+ ADDR_LIMIT_3GB | \
95783 MMAP_PAGE_ZERO)
95784
95785 /*
95786diff --git a/include/uapi/linux/screen_info.h b/include/uapi/linux/screen_info.h
95787index 7530e74..e714828 100644
95788--- a/include/uapi/linux/screen_info.h
95789+++ b/include/uapi/linux/screen_info.h
95790@@ -43,7 +43,8 @@ struct screen_info {
95791 __u16 pages; /* 0x32 */
95792 __u16 vesa_attributes; /* 0x34 */
95793 __u32 capabilities; /* 0x36 */
95794- __u8 _reserved[6]; /* 0x3a */
95795+ __u16 vesapm_size; /* 0x3a */
95796+ __u8 _reserved[4]; /* 0x3c */
95797 } __attribute__((packed));
95798
95799 #define VIDEO_TYPE_MDA 0x10 /* Monochrome Text Display */
95800diff --git a/include/uapi/linux/swab.h b/include/uapi/linux/swab.h
95801index 0e011eb..82681b1 100644
95802--- a/include/uapi/linux/swab.h
95803+++ b/include/uapi/linux/swab.h
95804@@ -43,7 +43,7 @@
95805 * ___swab16, ___swab32, ___swab64, ___swahw32, ___swahb32
95806 */
95807
95808-static inline __attribute_const__ __u16 __fswab16(__u16 val)
95809+static inline __intentional_overflow(-1) __attribute_const__ __u16 __fswab16(__u16 val)
95810 {
95811 #ifdef __HAVE_BUILTIN_BSWAP16__
95812 return __builtin_bswap16(val);
95813@@ -54,7 +54,7 @@ static inline __attribute_const__ __u16 __fswab16(__u16 val)
95814 #endif
95815 }
95816
95817-static inline __attribute_const__ __u32 __fswab32(__u32 val)
95818+static inline __intentional_overflow(-1) __attribute_const__ __u32 __fswab32(__u32 val)
95819 {
95820 #ifdef __HAVE_BUILTIN_BSWAP32__
95821 return __builtin_bswap32(val);
95822@@ -65,7 +65,7 @@ static inline __attribute_const__ __u32 __fswab32(__u32 val)
95823 #endif
95824 }
95825
95826-static inline __attribute_const__ __u64 __fswab64(__u64 val)
95827+static inline __intentional_overflow(-1) __attribute_const__ __u64 __fswab64(__u64 val)
95828 {
95829 #ifdef __HAVE_BUILTIN_BSWAP64__
95830 return __builtin_bswap64(val);
95831diff --git a/include/uapi/linux/xattr.h b/include/uapi/linux/xattr.h
95832index 1590c49..5eab462 100644
95833--- a/include/uapi/linux/xattr.h
95834+++ b/include/uapi/linux/xattr.h
95835@@ -73,5 +73,9 @@
95836 #define XATTR_POSIX_ACL_DEFAULT "posix_acl_default"
95837 #define XATTR_NAME_POSIX_ACL_DEFAULT XATTR_SYSTEM_PREFIX XATTR_POSIX_ACL_DEFAULT
95838
95839+/* User namespace */
95840+#define XATTR_PAX_PREFIX XATTR_USER_PREFIX "pax."
95841+#define XATTR_PAX_FLAGS_SUFFIX "flags"
95842+#define XATTR_NAME_PAX_FLAGS XATTR_PAX_PREFIX XATTR_PAX_FLAGS_SUFFIX
95843
95844 #endif /* _UAPI_LINUX_XATTR_H */
95845diff --git a/include/video/udlfb.h b/include/video/udlfb.h
95846index f9466fa..f4e2b81 100644
95847--- a/include/video/udlfb.h
95848+++ b/include/video/udlfb.h
95849@@ -53,10 +53,10 @@ struct dlfb_data {
95850 u32 pseudo_palette[256];
95851 int blank_mode; /*one of FB_BLANK_ */
95852 /* blit-only rendering path metrics, exposed through sysfs */
95853- atomic_t bytes_rendered; /* raw pixel-bytes driver asked to render */
95854- atomic_t bytes_identical; /* saved effort with backbuffer comparison */
95855- atomic_t bytes_sent; /* to usb, after compression including overhead */
95856- atomic_t cpu_kcycles_used; /* transpired during pixel processing */
95857+ atomic_unchecked_t bytes_rendered; /* raw pixel-bytes driver asked to render */
95858+ atomic_unchecked_t bytes_identical; /* saved effort with backbuffer comparison */
95859+ atomic_unchecked_t bytes_sent; /* to usb, after compression including overhead */
95860+ atomic_unchecked_t cpu_kcycles_used; /* transpired during pixel processing */
95861 };
95862
95863 #define NR_USB_REQUEST_I2C_SUB_IO 0x02
95864diff --git a/include/video/uvesafb.h b/include/video/uvesafb.h
95865index 30f5362..8ed8ac9 100644
95866--- a/include/video/uvesafb.h
95867+++ b/include/video/uvesafb.h
95868@@ -122,6 +122,7 @@ struct uvesafb_par {
95869 u8 ypan; /* 0 - nothing, 1 - ypan, 2 - ywrap */
95870 u8 pmi_setpal; /* PMI for palette changes */
95871 u16 *pmi_base; /* protected mode interface location */
95872+ u8 *pmi_code; /* protected mode code location */
95873 void *pmi_start;
95874 void *pmi_pal;
95875 u8 *vbe_state_orig; /*
95876diff --git a/init/Kconfig b/init/Kconfig
95877index f5dbc6d..8259396 100644
95878--- a/init/Kconfig
95879+++ b/init/Kconfig
95880@@ -1136,6 +1136,7 @@ endif # CGROUPS
95881
95882 config CHECKPOINT_RESTORE
95883 bool "Checkpoint/restore support" if EXPERT
95884+ depends on !GRKERNSEC
95885 default n
95886 help
95887 Enables additional kernel features in a sake of checkpoint/restore.
95888@@ -1646,7 +1647,7 @@ config SLUB_DEBUG
95889
95890 config COMPAT_BRK
95891 bool "Disable heap randomization"
95892- default y
95893+ default n
95894 help
95895 Randomizing heap placement makes heap exploits harder, but it
95896 also breaks ancient binaries (including anything libc5 based).
95897@@ -1977,7 +1978,7 @@ config INIT_ALL_POSSIBLE
95898 config STOP_MACHINE
95899 bool
95900 default y
95901- depends on (SMP && MODULE_UNLOAD) || HOTPLUG_CPU
95902+ depends on (SMP && MODULE_UNLOAD) || HOTPLUG_CPU || GRKERNSEC
95903 help
95904 Need stop_machine() primitive.
95905
95906diff --git a/init/Makefile b/init/Makefile
95907index 7bc47ee..6da2dc7 100644
95908--- a/init/Makefile
95909+++ b/init/Makefile
95910@@ -2,6 +2,9 @@
95911 # Makefile for the linux kernel.
95912 #
95913
95914+ccflags-y := $(GCC_PLUGINS_CFLAGS)
95915+asflags-y := $(GCC_PLUGINS_AFLAGS)
95916+
95917 obj-y := main.o version.o mounts.o
95918 ifneq ($(CONFIG_BLK_DEV_INITRD),y)
95919 obj-y += noinitramfs.o
95920diff --git a/init/do_mounts.c b/init/do_mounts.c
95921index eb41008..f5dbbf9 100644
95922--- a/init/do_mounts.c
95923+++ b/init/do_mounts.c
95924@@ -360,11 +360,11 @@ static void __init get_fs_names(char *page)
95925 static int __init do_mount_root(char *name, char *fs, int flags, void *data)
95926 {
95927 struct super_block *s;
95928- int err = sys_mount(name, "/root", fs, flags, data);
95929+ int err = sys_mount((char __force_user *)name, (char __force_user *)"/root", (char __force_user *)fs, flags, (void __force_user *)data);
95930 if (err)
95931 return err;
95932
95933- sys_chdir("/root");
95934+ sys_chdir((const char __force_user *)"/root");
95935 s = current->fs->pwd.dentry->d_sb;
95936 ROOT_DEV = s->s_dev;
95937 printk(KERN_INFO
95938@@ -487,18 +487,18 @@ void __init change_floppy(char *fmt, ...)
95939 va_start(args, fmt);
95940 vsprintf(buf, fmt, args);
95941 va_end(args);
95942- fd = sys_open("/dev/root", O_RDWR | O_NDELAY, 0);
95943+ fd = sys_open((char __user *)"/dev/root", O_RDWR | O_NDELAY, 0);
95944 if (fd >= 0) {
95945 sys_ioctl(fd, FDEJECT, 0);
95946 sys_close(fd);
95947 }
95948 printk(KERN_NOTICE "VFS: Insert %s and press ENTER\n", buf);
95949- fd = sys_open("/dev/console", O_RDWR, 0);
95950+ fd = sys_open((__force const char __user *)"/dev/console", O_RDWR, 0);
95951 if (fd >= 0) {
95952 sys_ioctl(fd, TCGETS, (long)&termios);
95953 termios.c_lflag &= ~ICANON;
95954 sys_ioctl(fd, TCSETSF, (long)&termios);
95955- sys_read(fd, &c, 1);
95956+ sys_read(fd, (char __user *)&c, 1);
95957 termios.c_lflag |= ICANON;
95958 sys_ioctl(fd, TCSETSF, (long)&termios);
95959 sys_close(fd);
95960@@ -592,8 +592,8 @@ void __init prepare_namespace(void)
95961 mount_root();
95962 out:
95963 devtmpfs_mount("dev");
95964- sys_mount(".", "/", NULL, MS_MOVE, NULL);
95965- sys_chroot(".");
95966+ sys_mount((char __force_user *)".", (char __force_user *)"/", NULL, MS_MOVE, NULL);
95967+ sys_chroot((const char __force_user *)".");
95968 }
95969
95970 static bool is_tmpfs;
95971diff --git a/init/do_mounts.h b/init/do_mounts.h
95972index f5b978a..69dbfe8 100644
95973--- a/init/do_mounts.h
95974+++ b/init/do_mounts.h
95975@@ -15,15 +15,15 @@ extern int root_mountflags;
95976
95977 static inline int create_dev(char *name, dev_t dev)
95978 {
95979- sys_unlink(name);
95980- return sys_mknod(name, S_IFBLK|0600, new_encode_dev(dev));
95981+ sys_unlink((char __force_user *)name);
95982+ return sys_mknod((char __force_user *)name, S_IFBLK|0600, new_encode_dev(dev));
95983 }
95984
95985 #if BITS_PER_LONG == 32
95986 static inline u32 bstat(char *name)
95987 {
95988 struct stat64 stat;
95989- if (sys_stat64(name, &stat) != 0)
95990+ if (sys_stat64((char __force_user *)name, (struct stat64 __force_user *)&stat) != 0)
95991 return 0;
95992 if (!S_ISBLK(stat.st_mode))
95993 return 0;
95994@@ -35,7 +35,7 @@ static inline u32 bstat(char *name)
95995 static inline u32 bstat(char *name)
95996 {
95997 struct stat stat;
95998- if (sys_newstat(name, &stat) != 0)
95999+ if (sys_newstat((const char __force_user *)name, (struct stat __force_user *)&stat) != 0)
96000 return 0;
96001 if (!S_ISBLK(stat.st_mode))
96002 return 0;
96003diff --git a/init/do_mounts_initrd.c b/init/do_mounts_initrd.c
96004index 3e0878e..8a9d7a0 100644
96005--- a/init/do_mounts_initrd.c
96006+++ b/init/do_mounts_initrd.c
96007@@ -37,13 +37,13 @@ static int init_linuxrc(struct subprocess_info *info, struct cred *new)
96008 {
96009 sys_unshare(CLONE_FS | CLONE_FILES);
96010 /* stdin/stdout/stderr for /linuxrc */
96011- sys_open("/dev/console", O_RDWR, 0);
96012+ sys_open((const char __force_user *)"/dev/console", O_RDWR, 0);
96013 sys_dup(0);
96014 sys_dup(0);
96015 /* move initrd over / and chdir/chroot in initrd root */
96016- sys_chdir("/root");
96017- sys_mount(".", "/", NULL, MS_MOVE, NULL);
96018- sys_chroot(".");
96019+ sys_chdir((const char __force_user *)"/root");
96020+ sys_mount((char __force_user *)".", (char __force_user *)"/", NULL, MS_MOVE, NULL);
96021+ sys_chroot((const char __force_user *)".");
96022 sys_setsid();
96023 return 0;
96024 }
96025@@ -59,8 +59,8 @@ static void __init handle_initrd(void)
96026 create_dev("/dev/root.old", Root_RAM0);
96027 /* mount initrd on rootfs' /root */
96028 mount_block_root("/dev/root.old", root_mountflags & ~MS_RDONLY);
96029- sys_mkdir("/old", 0700);
96030- sys_chdir("/old");
96031+ sys_mkdir((const char __force_user *)"/old", 0700);
96032+ sys_chdir((const char __force_user *)"/old");
96033
96034 /* try loading default modules from initrd */
96035 load_default_modules();
96036@@ -80,31 +80,31 @@ static void __init handle_initrd(void)
96037 current->flags &= ~PF_FREEZER_SKIP;
96038
96039 /* move initrd to rootfs' /old */
96040- sys_mount("..", ".", NULL, MS_MOVE, NULL);
96041+ sys_mount((char __force_user *)"..", (char __force_user *)".", NULL, MS_MOVE, NULL);
96042 /* switch root and cwd back to / of rootfs */
96043- sys_chroot("..");
96044+ sys_chroot((const char __force_user *)"..");
96045
96046 if (new_decode_dev(real_root_dev) == Root_RAM0) {
96047- sys_chdir("/old");
96048+ sys_chdir((const char __force_user *)"/old");
96049 return;
96050 }
96051
96052- sys_chdir("/");
96053+ sys_chdir((const char __force_user *)"/");
96054 ROOT_DEV = new_decode_dev(real_root_dev);
96055 mount_root();
96056
96057 printk(KERN_NOTICE "Trying to move old root to /initrd ... ");
96058- error = sys_mount("/old", "/root/initrd", NULL, MS_MOVE, NULL);
96059+ error = sys_mount((char __force_user *)"/old", (char __force_user *)"/root/initrd", NULL, MS_MOVE, NULL);
96060 if (!error)
96061 printk("okay\n");
96062 else {
96063- int fd = sys_open("/dev/root.old", O_RDWR, 0);
96064+ int fd = sys_open((const char __force_user *)"/dev/root.old", O_RDWR, 0);
96065 if (error == -ENOENT)
96066 printk("/initrd does not exist. Ignored.\n");
96067 else
96068 printk("failed\n");
96069 printk(KERN_NOTICE "Unmounting old root\n");
96070- sys_umount("/old", MNT_DETACH);
96071+ sys_umount((char __force_user *)"/old", MNT_DETACH);
96072 printk(KERN_NOTICE "Trying to free ramdisk memory ... ");
96073 if (fd < 0) {
96074 error = fd;
96075@@ -127,11 +127,11 @@ int __init initrd_load(void)
96076 * mounted in the normal path.
96077 */
96078 if (rd_load_image("/initrd.image") && ROOT_DEV != Root_RAM0) {
96079- sys_unlink("/initrd.image");
96080+ sys_unlink((const char __force_user *)"/initrd.image");
96081 handle_initrd();
96082 return 1;
96083 }
96084 }
96085- sys_unlink("/initrd.image");
96086+ sys_unlink((const char __force_user *)"/initrd.image");
96087 return 0;
96088 }
96089diff --git a/init/do_mounts_md.c b/init/do_mounts_md.c
96090index 8cb6db5..d729f50 100644
96091--- a/init/do_mounts_md.c
96092+++ b/init/do_mounts_md.c
96093@@ -180,7 +180,7 @@ static void __init md_setup_drive(void)
96094 partitioned ? "_d" : "", minor,
96095 md_setup_args[ent].device_names);
96096
96097- fd = sys_open(name, 0, 0);
96098+ fd = sys_open((char __force_user *)name, 0, 0);
96099 if (fd < 0) {
96100 printk(KERN_ERR "md: open failed - cannot start "
96101 "array %s\n", name);
96102@@ -243,7 +243,7 @@ static void __init md_setup_drive(void)
96103 * array without it
96104 */
96105 sys_close(fd);
96106- fd = sys_open(name, 0, 0);
96107+ fd = sys_open((char __force_user *)name, 0, 0);
96108 sys_ioctl(fd, BLKRRPART, 0);
96109 }
96110 sys_close(fd);
96111@@ -293,7 +293,7 @@ static void __init autodetect_raid(void)
96112
96113 wait_for_device_probe();
96114
96115- fd = sys_open("/dev/md0", 0, 0);
96116+ fd = sys_open((const char __force_user *) "/dev/md0", 0, 0);
96117 if (fd >= 0) {
96118 sys_ioctl(fd, RAID_AUTORUN, raid_autopart);
96119 sys_close(fd);
96120diff --git a/init/init_task.c b/init/init_task.c
96121index ba0a7f36..2bcf1d5 100644
96122--- a/init/init_task.c
96123+++ b/init/init_task.c
96124@@ -22,5 +22,9 @@ EXPORT_SYMBOL(init_task);
96125 * Initial thread structure. Alignment of this is handled by a special
96126 * linker map entry.
96127 */
96128+#ifdef CONFIG_X86
96129+union thread_union init_thread_union __init_task_data;
96130+#else
96131 union thread_union init_thread_union __init_task_data =
96132 { INIT_THREAD_INFO(init_task) };
96133+#endif
96134diff --git a/init/initramfs.c b/init/initramfs.c
96135index ad1bd77..dca2c1b 100644
96136--- a/init/initramfs.c
96137+++ b/init/initramfs.c
96138@@ -25,7 +25,7 @@ static ssize_t __init xwrite(int fd, const char *p, size_t count)
96139
96140 /* sys_write only can write MAX_RW_COUNT aka 2G-4K bytes at most */
96141 while (count) {
96142- ssize_t rv = sys_write(fd, p, count);
96143+ ssize_t rv = sys_write(fd, (char __force_user *)p, count);
96144
96145 if (rv < 0) {
96146 if (rv == -EINTR || rv == -EAGAIN)
96147@@ -107,7 +107,7 @@ static void __init free_hash(void)
96148 }
96149 }
96150
96151-static long __init do_utime(char *filename, time_t mtime)
96152+static long __init do_utime(char __force_user *filename, time_t mtime)
96153 {
96154 struct timespec t[2];
96155
96156@@ -142,7 +142,7 @@ static void __init dir_utime(void)
96157 struct dir_entry *de, *tmp;
96158 list_for_each_entry_safe(de, tmp, &dir_list, list) {
96159 list_del(&de->list);
96160- do_utime(de->name, de->mtime);
96161+ do_utime((char __force_user *)de->name, de->mtime);
96162 kfree(de->name);
96163 kfree(de);
96164 }
96165@@ -304,7 +304,7 @@ static int __init maybe_link(void)
96166 if (nlink >= 2) {
96167 char *old = find_link(major, minor, ino, mode, collected);
96168 if (old)
96169- return (sys_link(old, collected) < 0) ? -1 : 1;
96170+ return (sys_link((char __force_user *)old, (char __force_user *)collected) < 0) ? -1 : 1;
96171 }
96172 return 0;
96173 }
96174@@ -313,11 +313,11 @@ static void __init clean_path(char *path, umode_t fmode)
96175 {
96176 struct stat st;
96177
96178- if (!sys_newlstat(path, &st) && (st.st_mode ^ fmode) & S_IFMT) {
96179+ if (!sys_newlstat((char __force_user *)path, (struct stat __force_user *)&st) && (st.st_mode ^ fmode) & S_IFMT) {
96180 if (S_ISDIR(st.st_mode))
96181- sys_rmdir(path);
96182+ sys_rmdir((char __force_user *)path);
96183 else
96184- sys_unlink(path);
96185+ sys_unlink((char __force_user *)path);
96186 }
96187 }
96188
96189@@ -338,7 +338,7 @@ static int __init do_name(void)
96190 int openflags = O_WRONLY|O_CREAT;
96191 if (ml != 1)
96192 openflags |= O_TRUNC;
96193- wfd = sys_open(collected, openflags, mode);
96194+ wfd = sys_open((char __force_user *)collected, openflags, mode);
96195
96196 if (wfd >= 0) {
96197 sys_fchown(wfd, uid, gid);
96198@@ -350,17 +350,17 @@ static int __init do_name(void)
96199 }
96200 }
96201 } else if (S_ISDIR(mode)) {
96202- sys_mkdir(collected, mode);
96203- sys_chown(collected, uid, gid);
96204- sys_chmod(collected, mode);
96205+ sys_mkdir((char __force_user *)collected, mode);
96206+ sys_chown((char __force_user *)collected, uid, gid);
96207+ sys_chmod((char __force_user *)collected, mode);
96208 dir_add(collected, mtime);
96209 } else if (S_ISBLK(mode) || S_ISCHR(mode) ||
96210 S_ISFIFO(mode) || S_ISSOCK(mode)) {
96211 if (maybe_link() == 0) {
96212- sys_mknod(collected, mode, rdev);
96213- sys_chown(collected, uid, gid);
96214- sys_chmod(collected, mode);
96215- do_utime(collected, mtime);
96216+ sys_mknod((char __force_user *)collected, mode, rdev);
96217+ sys_chown((char __force_user *)collected, uid, gid);
96218+ sys_chmod((char __force_user *)collected, mode);
96219+ do_utime((char __force_user *)collected, mtime);
96220 }
96221 }
96222 return 0;
96223@@ -372,7 +372,7 @@ static int __init do_copy(void)
96224 if (xwrite(wfd, victim, body_len) != body_len)
96225 error("write error");
96226 sys_close(wfd);
96227- do_utime(vcollected, mtime);
96228+ do_utime((char __force_user *)vcollected, mtime);
96229 kfree(vcollected);
96230 eat(body_len);
96231 state = SkipIt;
96232@@ -390,9 +390,9 @@ static int __init do_symlink(void)
96233 {
96234 collected[N_ALIGN(name_len) + body_len] = '\0';
96235 clean_path(collected, 0);
96236- sys_symlink(collected + N_ALIGN(name_len), collected);
96237- sys_lchown(collected, uid, gid);
96238- do_utime(collected, mtime);
96239+ sys_symlink((char __force_user *)collected + N_ALIGN(name_len), (char __force_user *)collected);
96240+ sys_lchown((char __force_user *)collected, uid, gid);
96241+ do_utime((char __force_user *)collected, mtime);
96242 state = SkipIt;
96243 next_state = Reset;
96244 return 0;
96245diff --git a/init/main.c b/init/main.c
96246index 6f0f1c5f..a542824 100644
96247--- a/init/main.c
96248+++ b/init/main.c
96249@@ -96,6 +96,8 @@ extern void radix_tree_init(void);
96250 static inline void mark_rodata_ro(void) { }
96251 #endif
96252
96253+extern void grsecurity_init(void);
96254+
96255 /*
96256 * Debug helper: via this flag we know that we are in 'early bootup code'
96257 * where only the boot processor is running with IRQ disabled. This means
96258@@ -157,6 +159,85 @@ static int __init set_reset_devices(char *str)
96259
96260 __setup("reset_devices", set_reset_devices);
96261
96262+#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
96263+kgid_t grsec_proc_gid = KGIDT_INIT(CONFIG_GRKERNSEC_PROC_GID);
96264+static int __init setup_grsec_proc_gid(char *str)
96265+{
96266+ grsec_proc_gid = KGIDT_INIT(simple_strtol(str, NULL, 0));
96267+ return 1;
96268+}
96269+__setup("grsec_proc_gid=", setup_grsec_proc_gid);
96270+#endif
96271+#ifdef CONFIG_GRKERNSEC_SYSFS_RESTRICT
96272+int grsec_enable_sysfs_restrict = 1;
96273+static int __init setup_grsec_sysfs_restrict(char *str)
96274+{
96275+ if (!simple_strtol(str, NULL, 0))
96276+ grsec_enable_sysfs_restrict = 0;
96277+ return 1;
96278+}
96279+__setup("grsec_sysfs_restrict", setup_grsec_sysfs_restrict);
96280+#endif
96281+
96282+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
96283+unsigned long pax_user_shadow_base __read_only;
96284+EXPORT_SYMBOL(pax_user_shadow_base);
96285+extern char pax_enter_kernel_user[];
96286+extern char pax_exit_kernel_user[];
96287+#endif
96288+
96289+#if defined(CONFIG_X86) && defined(CONFIG_PAX_MEMORY_UDEREF)
96290+static int __init setup_pax_nouderef(char *str)
96291+{
96292+#ifdef CONFIG_X86_32
96293+ unsigned int cpu;
96294+ struct desc_struct *gdt;
96295+
96296+ for (cpu = 0; cpu < nr_cpu_ids; cpu++) {
96297+ gdt = get_cpu_gdt_table(cpu);
96298+ gdt[GDT_ENTRY_KERNEL_DS].type = 3;
96299+ gdt[GDT_ENTRY_KERNEL_DS].limit = 0xf;
96300+ gdt[GDT_ENTRY_DEFAULT_USER_CS].limit = 0xf;
96301+ gdt[GDT_ENTRY_DEFAULT_USER_DS].limit = 0xf;
96302+ }
96303+ loadsegment(ds, __KERNEL_DS);
96304+ loadsegment(es, __KERNEL_DS);
96305+ loadsegment(ss, __KERNEL_DS);
96306+#else
96307+ memcpy(pax_enter_kernel_user, (unsigned char []){0xc3}, 1);
96308+ memcpy(pax_exit_kernel_user, (unsigned char []){0xc3}, 1);
96309+ clone_pgd_mask = ~(pgdval_t)0UL;
96310+ pax_user_shadow_base = 0UL;
96311+ setup_clear_cpu_cap(X86_FEATURE_PCID);
96312+ setup_clear_cpu_cap(X86_FEATURE_INVPCID);
96313+#endif
96314+
96315+ return 0;
96316+}
96317+early_param("pax_nouderef", setup_pax_nouderef);
96318+
96319+#ifdef CONFIG_X86_64
96320+static int __init setup_pax_weakuderef(char *str)
96321+{
96322+ if (clone_pgd_mask != ~(pgdval_t)0UL)
96323+ pax_user_shadow_base = 1UL << TASK_SIZE_MAX_SHIFT;
96324+ return 1;
96325+}
96326+__setup("pax_weakuderef", setup_pax_weakuderef);
96327+#endif
96328+#endif
96329+
96330+#ifdef CONFIG_PAX_SOFTMODE
96331+int pax_softmode;
96332+
96333+static int __init setup_pax_softmode(char *str)
96334+{
96335+ get_option(&str, &pax_softmode);
96336+ return 1;
96337+}
96338+__setup("pax_softmode=", setup_pax_softmode);
96339+#endif
96340+
96341 static const char *argv_init[MAX_INIT_ARGS+2] = { "init", NULL, };
96342 const char *envp_init[MAX_INIT_ENVS+2] = { "HOME=/", "TERM=linux", NULL, };
96343 static const char *panic_later, *panic_param;
96344@@ -722,7 +803,7 @@ static bool __init_or_module initcall_blacklisted(initcall_t fn)
96345 struct blacklist_entry *entry;
96346 char *fn_name;
96347
96348- fn_name = kasprintf(GFP_KERNEL, "%pf", fn);
96349+ fn_name = kasprintf(GFP_KERNEL, "%pX", fn);
96350 if (!fn_name)
96351 return false;
96352
96353@@ -774,7 +855,7 @@ int __init_or_module do_one_initcall(initcall_t fn)
96354 {
96355 int count = preempt_count();
96356 int ret;
96357- char msgbuf[64];
96358+ const char *msg1 = "", *msg2 = "";
96359
96360 if (initcall_blacklisted(fn))
96361 return -EPERM;
96362@@ -784,18 +865,17 @@ int __init_or_module do_one_initcall(initcall_t fn)
96363 else
96364 ret = fn();
96365
96366- msgbuf[0] = 0;
96367-
96368 if (preempt_count() != count) {
96369- sprintf(msgbuf, "preemption imbalance ");
96370+ msg1 = " preemption imbalance";
96371 preempt_count_set(count);
96372 }
96373 if (irqs_disabled()) {
96374- strlcat(msgbuf, "disabled interrupts ", sizeof(msgbuf));
96375+ msg2 = " disabled interrupts";
96376 local_irq_enable();
96377 }
96378- WARN(msgbuf[0], "initcall %pF returned with %s\n", fn, msgbuf);
96379+ WARN(*msg1 || *msg2, "initcall %pF returned with%s%s\n", fn, msg1, msg2);
96380
96381+ add_latent_entropy();
96382 return ret;
96383 }
96384
96385@@ -901,8 +981,8 @@ static int run_init_process(const char *init_filename)
96386 {
96387 argv_init[0] = init_filename;
96388 return do_execve(getname_kernel(init_filename),
96389- (const char __user *const __user *)argv_init,
96390- (const char __user *const __user *)envp_init);
96391+ (const char __user *const __force_user *)argv_init,
96392+ (const char __user *const __force_user *)envp_init);
96393 }
96394
96395 static int try_to_run_init_process(const char *init_filename)
96396@@ -919,6 +999,10 @@ static int try_to_run_init_process(const char *init_filename)
96397 return ret;
96398 }
96399
96400+#ifdef CONFIG_GRKERNSEC_CHROOT_INITRD
96401+extern int gr_init_ran;
96402+#endif
96403+
96404 static noinline void __init kernel_init_freeable(void);
96405
96406 static int __ref kernel_init(void *unused)
96407@@ -943,6 +1027,11 @@ static int __ref kernel_init(void *unused)
96408 ramdisk_execute_command, ret);
96409 }
96410
96411+#ifdef CONFIG_GRKERNSEC_CHROOT_INITRD
96412+ /* if no initrd was used, be extra sure we enforce chroot restrictions */
96413+ gr_init_ran = 1;
96414+#endif
96415+
96416 /*
96417 * We try each of these until one succeeds.
96418 *
96419@@ -998,7 +1087,7 @@ static noinline void __init kernel_init_freeable(void)
96420 do_basic_setup();
96421
96422 /* Open the /dev/console on the rootfs, this should never fail */
96423- if (sys_open((const char __user *) "/dev/console", O_RDWR, 0) < 0)
96424+ if (sys_open((const char __force_user *) "/dev/console", O_RDWR, 0) < 0)
96425 pr_err("Warning: unable to open an initial console.\n");
96426
96427 (void) sys_dup(0);
96428@@ -1011,11 +1100,13 @@ static noinline void __init kernel_init_freeable(void)
96429 if (!ramdisk_execute_command)
96430 ramdisk_execute_command = "/init";
96431
96432- if (sys_access((const char __user *) ramdisk_execute_command, 0) != 0) {
96433+ if (sys_access((const char __force_user *) ramdisk_execute_command, 0) != 0) {
96434 ramdisk_execute_command = NULL;
96435 prepare_namespace();
96436 }
96437
96438+ grsecurity_init();
96439+
96440 /*
96441 * Ok, we have completed the initial bootup, and
96442 * we're essentially up and running. Get rid of the
96443diff --git a/ipc/compat.c b/ipc/compat.c
96444index 9b3c85f..5266b0f 100644
96445--- a/ipc/compat.c
96446+++ b/ipc/compat.c
96447@@ -396,7 +396,7 @@ COMPAT_SYSCALL_DEFINE6(ipc, u32, call, int, first, int, second,
96448 COMPAT_SHMLBA);
96449 if (err < 0)
96450 return err;
96451- return put_user(raddr, (compat_ulong_t *)compat_ptr(third));
96452+ return put_user(raddr, (compat_ulong_t __user *)compat_ptr(third));
96453 }
96454 case SHMDT:
96455 return sys_shmdt(compat_ptr(ptr));
96456@@ -747,7 +747,7 @@ COMPAT_SYSCALL_DEFINE3(shmctl, int, first, int, second, void __user *, uptr)
96457 }
96458
96459 COMPAT_SYSCALL_DEFINE4(semtimedop, int, semid, struct sembuf __user *, tsems,
96460- unsigned, nsops,
96461+ compat_long_t, nsops,
96462 const struct compat_timespec __user *, timeout)
96463 {
96464 struct timespec __user *ts64;
96465diff --git a/ipc/ipc_sysctl.c b/ipc/ipc_sysctl.c
96466index 8ad93c2..efd80f8 100644
96467--- a/ipc/ipc_sysctl.c
96468+++ b/ipc/ipc_sysctl.c
96469@@ -30,7 +30,7 @@ static void *get_ipc(struct ctl_table *table)
96470 static int proc_ipc_dointvec(struct ctl_table *table, int write,
96471 void __user *buffer, size_t *lenp, loff_t *ppos)
96472 {
96473- struct ctl_table ipc_table;
96474+ ctl_table_no_const ipc_table;
96475
96476 memcpy(&ipc_table, table, sizeof(ipc_table));
96477 ipc_table.data = get_ipc(table);
96478@@ -41,7 +41,7 @@ static int proc_ipc_dointvec(struct ctl_table *table, int write,
96479 static int proc_ipc_dointvec_minmax(struct ctl_table *table, int write,
96480 void __user *buffer, size_t *lenp, loff_t *ppos)
96481 {
96482- struct ctl_table ipc_table;
96483+ ctl_table_no_const ipc_table;
96484
96485 memcpy(&ipc_table, table, sizeof(ipc_table));
96486 ipc_table.data = get_ipc(table);
96487@@ -65,7 +65,7 @@ static int proc_ipc_dointvec_minmax_orphans(struct ctl_table *table, int write,
96488 static int proc_ipc_doulongvec_minmax(struct ctl_table *table, int write,
96489 void __user *buffer, size_t *lenp, loff_t *ppos)
96490 {
96491- struct ctl_table ipc_table;
96492+ ctl_table_no_const ipc_table;
96493 memcpy(&ipc_table, table, sizeof(ipc_table));
96494 ipc_table.data = get_ipc(table);
96495
96496@@ -76,7 +76,7 @@ static int proc_ipc_doulongvec_minmax(struct ctl_table *table, int write,
96497 static int proc_ipc_auto_msgmni(struct ctl_table *table, int write,
96498 void __user *buffer, size_t *lenp, loff_t *ppos)
96499 {
96500- struct ctl_table ipc_table;
96501+ ctl_table_no_const ipc_table;
96502 int dummy = 0;
96503
96504 memcpy(&ipc_table, table, sizeof(ipc_table));
96505diff --git a/ipc/mq_sysctl.c b/ipc/mq_sysctl.c
96506index 68d4e95..1477ded 100644
96507--- a/ipc/mq_sysctl.c
96508+++ b/ipc/mq_sysctl.c
96509@@ -25,7 +25,7 @@ static void *get_mq(struct ctl_table *table)
96510 static int proc_mq_dointvec(struct ctl_table *table, int write,
96511 void __user *buffer, size_t *lenp, loff_t *ppos)
96512 {
96513- struct ctl_table mq_table;
96514+ ctl_table_no_const mq_table;
96515 memcpy(&mq_table, table, sizeof(mq_table));
96516 mq_table.data = get_mq(table);
96517
96518@@ -35,7 +35,7 @@ static int proc_mq_dointvec(struct ctl_table *table, int write,
96519 static int proc_mq_dointvec_minmax(struct ctl_table *table, int write,
96520 void __user *buffer, size_t *lenp, loff_t *ppos)
96521 {
96522- struct ctl_table mq_table;
96523+ ctl_table_no_const mq_table;
96524 memcpy(&mq_table, table, sizeof(mq_table));
96525 mq_table.data = get_mq(table);
96526
96527diff --git a/ipc/mqueue.c b/ipc/mqueue.c
96528index 7635a1c..7432cb6 100644
96529--- a/ipc/mqueue.c
96530+++ b/ipc/mqueue.c
96531@@ -278,6 +278,7 @@ static struct inode *mqueue_get_inode(struct super_block *sb,
96532 mq_bytes = mq_treesize + (info->attr.mq_maxmsg *
96533 info->attr.mq_msgsize);
96534
96535+ gr_learn_resource(current, RLIMIT_MSGQUEUE, u->mq_bytes + mq_bytes, 1);
96536 spin_lock(&mq_lock);
96537 if (u->mq_bytes + mq_bytes < u->mq_bytes ||
96538 u->mq_bytes + mq_bytes > rlimit(RLIMIT_MSGQUEUE)) {
96539diff --git a/ipc/sem.c b/ipc/sem.c
96540index 9284211..bca5b1b 100644
96541--- a/ipc/sem.c
96542+++ b/ipc/sem.c
96543@@ -1780,7 +1780,7 @@ static int get_queue_result(struct sem_queue *q)
96544 }
96545
96546 SYSCALL_DEFINE4(semtimedop, int, semid, struct sembuf __user *, tsops,
96547- unsigned, nsops, const struct timespec __user *, timeout)
96548+ long, nsops, const struct timespec __user *, timeout)
96549 {
96550 int error = -EINVAL;
96551 struct sem_array *sma;
96552@@ -2015,7 +2015,7 @@ out_free:
96553 }
96554
96555 SYSCALL_DEFINE3(semop, int, semid, struct sembuf __user *, tsops,
96556- unsigned, nsops)
96557+ long, nsops)
96558 {
96559 return sys_semtimedop(semid, tsops, nsops, NULL);
96560 }
96561diff --git a/ipc/shm.c b/ipc/shm.c
96562index 19633b4..d454904 100644
96563--- a/ipc/shm.c
96564+++ b/ipc/shm.c
96565@@ -72,6 +72,14 @@ static void shm_destroy(struct ipc_namespace *ns, struct shmid_kernel *shp);
96566 static int sysvipc_shm_proc_show(struct seq_file *s, void *it);
96567 #endif
96568
96569+#ifdef CONFIG_GRKERNSEC
96570+extern int gr_handle_shmat(const pid_t shm_cprid, const pid_t shm_lapid,
96571+ const u64 shm_createtime, const kuid_t cuid,
96572+ const int shmid);
96573+extern int gr_chroot_shmat(const pid_t shm_cprid, const pid_t shm_lapid,
96574+ const u64 shm_createtime);
96575+#endif
96576+
96577 void shm_init_ns(struct ipc_namespace *ns)
96578 {
96579 ns->shm_ctlmax = SHMMAX;
96580@@ -560,6 +568,9 @@ static int newseg(struct ipc_namespace *ns, struct ipc_params *params)
96581 shp->shm_lprid = 0;
96582 shp->shm_atim = shp->shm_dtim = 0;
96583 shp->shm_ctim = get_seconds();
96584+#ifdef CONFIG_GRKERNSEC
96585+ shp->shm_createtime = ktime_get_ns();
96586+#endif
96587 shp->shm_segsz = size;
96588 shp->shm_nattch = 0;
96589 shp->shm_file = file;
96590@@ -1096,6 +1107,12 @@ long do_shmat(int shmid, char __user *shmaddr, int shmflg, ulong *raddr,
96591 f_mode = FMODE_READ | FMODE_WRITE;
96592 }
96593 if (shmflg & SHM_EXEC) {
96594+
96595+#ifdef CONFIG_PAX_MPROTECT
96596+ if (current->mm->pax_flags & MF_PAX_MPROTECT)
96597+ goto out;
96598+#endif
96599+
96600 prot |= PROT_EXEC;
96601 acc_mode |= S_IXUGO;
96602 }
96603@@ -1120,6 +1137,15 @@ long do_shmat(int shmid, char __user *shmaddr, int shmflg, ulong *raddr,
96604 if (err)
96605 goto out_unlock;
96606
96607+#ifdef CONFIG_GRKERNSEC
96608+ if (!gr_handle_shmat(shp->shm_cprid, shp->shm_lapid, shp->shm_createtime,
96609+ shp->shm_perm.cuid, shmid) ||
96610+ !gr_chroot_shmat(shp->shm_cprid, shp->shm_lapid, shp->shm_createtime)) {
96611+ err = -EACCES;
96612+ goto out_unlock;
96613+ }
96614+#endif
96615+
96616 ipc_lock_object(&shp->shm_perm);
96617
96618 /* check if shm_destroy() is tearing down shp */
96619@@ -1132,6 +1158,9 @@ long do_shmat(int shmid, char __user *shmaddr, int shmflg, ulong *raddr,
96620 path = shp->shm_file->f_path;
96621 path_get(&path);
96622 shp->shm_nattch++;
96623+#ifdef CONFIG_GRKERNSEC
96624+ shp->shm_lapid = current->pid;
96625+#endif
96626 size = i_size_read(path.dentry->d_inode);
96627 ipc_unlock_object(&shp->shm_perm);
96628 rcu_read_unlock();
96629diff --git a/ipc/util.c b/ipc/util.c
96630index 106bed0..f851429 100644
96631--- a/ipc/util.c
96632+++ b/ipc/util.c
96633@@ -71,6 +71,8 @@ struct ipc_proc_iface {
96634 int (*show)(struct seq_file *, void *);
96635 };
96636
96637+extern int gr_ipc_permitted(struct ipc_namespace *ns, struct kern_ipc_perm *ipcp, int requested_mode, int granted_mode);
96638+
96639 /**
96640 * ipc_init - initialise ipc subsystem
96641 *
96642@@ -497,6 +499,10 @@ int ipcperms(struct ipc_namespace *ns, struct kern_ipc_perm *ipcp, short flag)
96643 granted_mode >>= 6;
96644 else if (in_group_p(ipcp->cgid) || in_group_p(ipcp->gid))
96645 granted_mode >>= 3;
96646+
96647+ if (!gr_ipc_permitted(ns, ipcp, requested_mode, granted_mode))
96648+ return -1;
96649+
96650 /* is there some bit set in requested_mode but not in granted_mode? */
96651 if ((requested_mode & ~granted_mode & 0007) &&
96652 !ns_capable(ns->user_ns, CAP_IPC_OWNER))
96653diff --git a/kernel/audit.c b/kernel/audit.c
96654index 72ab759..757deba 100644
96655--- a/kernel/audit.c
96656+++ b/kernel/audit.c
96657@@ -122,7 +122,7 @@ u32 audit_sig_sid = 0;
96658 3) suppressed due to audit_rate_limit
96659 4) suppressed due to audit_backlog_limit
96660 */
96661-static atomic_t audit_lost = ATOMIC_INIT(0);
96662+static atomic_unchecked_t audit_lost = ATOMIC_INIT(0);
96663
96664 /* The netlink socket. */
96665 static struct sock *audit_sock;
96666@@ -256,7 +256,7 @@ void audit_log_lost(const char *message)
96667 unsigned long now;
96668 int print;
96669
96670- atomic_inc(&audit_lost);
96671+ atomic_inc_unchecked(&audit_lost);
96672
96673 print = (audit_failure == AUDIT_FAIL_PANIC || !audit_rate_limit);
96674
96675@@ -273,7 +273,7 @@ void audit_log_lost(const char *message)
96676 if (print) {
96677 if (printk_ratelimit())
96678 pr_warn("audit_lost=%u audit_rate_limit=%u audit_backlog_limit=%u\n",
96679- atomic_read(&audit_lost),
96680+ atomic_read_unchecked(&audit_lost),
96681 audit_rate_limit,
96682 audit_backlog_limit);
96683 audit_panic(message);
96684@@ -831,7 +831,7 @@ static int audit_receive_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
96685 s.pid = audit_pid;
96686 s.rate_limit = audit_rate_limit;
96687 s.backlog_limit = audit_backlog_limit;
96688- s.lost = atomic_read(&audit_lost);
96689+ s.lost = atomic_read_unchecked(&audit_lost);
96690 s.backlog = skb_queue_len(&audit_skb_queue);
96691 s.feature_bitmap = AUDIT_FEATURE_BITMAP_ALL;
96692 s.backlog_wait_time = audit_backlog_wait_time;
96693diff --git a/kernel/auditsc.c b/kernel/auditsc.c
96694index dc4ae70..2a2bddc 100644
96695--- a/kernel/auditsc.c
96696+++ b/kernel/auditsc.c
96697@@ -1955,7 +1955,7 @@ int auditsc_get_stamp(struct audit_context *ctx,
96698 }
96699
96700 /* global counter which is incremented every time something logs in */
96701-static atomic_t session_id = ATOMIC_INIT(0);
96702+static atomic_unchecked_t session_id = ATOMIC_INIT(0);
96703
96704 static int audit_set_loginuid_perm(kuid_t loginuid)
96705 {
96706@@ -2022,7 +2022,7 @@ int audit_set_loginuid(kuid_t loginuid)
96707
96708 /* are we setting or clearing? */
96709 if (uid_valid(loginuid))
96710- sessionid = (unsigned int)atomic_inc_return(&session_id);
96711+ sessionid = (unsigned int)atomic_inc_return_unchecked(&session_id);
96712
96713 task->sessionid = sessionid;
96714 task->loginuid = loginuid;
96715diff --git a/kernel/bpf/core.c b/kernel/bpf/core.c
96716index 0c5796e..a9414e2 100644
96717--- a/kernel/bpf/core.c
96718+++ b/kernel/bpf/core.c
96719@@ -143,14 +143,17 @@ bpf_jit_binary_alloc(unsigned int proglen, u8 **image_ptr,
96720 * random section of illegal instructions.
96721 */
96722 size = round_up(proglen + sizeof(*hdr) + 128, PAGE_SIZE);
96723- hdr = module_alloc(size);
96724+ hdr = module_alloc_exec(size);
96725 if (hdr == NULL)
96726 return NULL;
96727
96728 /* Fill space with illegal/arch-dep instructions. */
96729 bpf_fill_ill_insns(hdr, size);
96730
96731+ pax_open_kernel();
96732 hdr->pages = size / PAGE_SIZE;
96733+ pax_close_kernel();
96734+
96735 hole = min_t(unsigned int, size - (proglen + sizeof(*hdr)),
96736 PAGE_SIZE - sizeof(*hdr));
96737 start = (prandom_u32() % hole) & ~(alignment - 1);
96738@@ -163,7 +166,7 @@ bpf_jit_binary_alloc(unsigned int proglen, u8 **image_ptr,
96739
96740 void bpf_jit_binary_free(struct bpf_binary_header *hdr)
96741 {
96742- module_memfree(hdr);
96743+ module_memfree_exec(hdr);
96744 }
96745 #endif /* CONFIG_BPF_JIT */
96746
96747diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c
96748index 536edc2..d28c85d 100644
96749--- a/kernel/bpf/syscall.c
96750+++ b/kernel/bpf/syscall.c
96751@@ -548,11 +548,15 @@ SYSCALL_DEFINE3(bpf, int, cmd, union bpf_attr __user *, uattr, unsigned int, siz
96752 int err;
96753
96754 /* the syscall is limited to root temporarily. This restriction will be
96755- * lifted when security audit is clean. Note that eBPF+tracing must have
96756- * this restriction, since it may pass kernel data to user space
96757+ * lifted by upstream when a half-assed security audit is clean. Note
96758+ * that eBPF+tracing must have this restriction, since it may pass
96759+ * kernel data to user space
96760 */
96761 if (!capable(CAP_SYS_ADMIN))
96762 return -EPERM;
96763+#ifdef CONFIG_GRKERNSEC
96764+ return -EPERM;
96765+#endif
96766
96767 if (!access_ok(VERIFY_READ, uattr, 1))
96768 return -EFAULT;
96769diff --git a/kernel/capability.c b/kernel/capability.c
96770index 989f5bf..d317ca0 100644
96771--- a/kernel/capability.c
96772+++ b/kernel/capability.c
96773@@ -192,6 +192,9 @@ SYSCALL_DEFINE2(capget, cap_user_header_t, header, cap_user_data_t, dataptr)
96774 * before modification is attempted and the application
96775 * fails.
96776 */
96777+ if (tocopy > ARRAY_SIZE(kdata))
96778+ return -EFAULT;
96779+
96780 if (copy_to_user(dataptr, kdata, tocopy
96781 * sizeof(struct __user_cap_data_struct))) {
96782 return -EFAULT;
96783@@ -297,10 +300,11 @@ bool has_ns_capability(struct task_struct *t,
96784 int ret;
96785
96786 rcu_read_lock();
96787- ret = security_capable(__task_cred(t), ns, cap);
96788+ ret = security_capable(__task_cred(t), ns, cap) == 0 &&
96789+ gr_task_is_capable(t, __task_cred(t), cap);
96790 rcu_read_unlock();
96791
96792- return (ret == 0);
96793+ return ret;
96794 }
96795
96796 /**
96797@@ -337,10 +341,10 @@ bool has_ns_capability_noaudit(struct task_struct *t,
96798 int ret;
96799
96800 rcu_read_lock();
96801- ret = security_capable_noaudit(__task_cred(t), ns, cap);
96802+ ret = security_capable_noaudit(__task_cred(t), ns, cap) == 0 && gr_task_is_capable_nolog(t, cap);
96803 rcu_read_unlock();
96804
96805- return (ret == 0);
96806+ return ret;
96807 }
96808
96809 /**
96810@@ -378,7 +382,7 @@ bool ns_capable(struct user_namespace *ns, int cap)
96811 BUG();
96812 }
96813
96814- if (security_capable(current_cred(), ns, cap) == 0) {
96815+ if (security_capable(current_cred(), ns, cap) == 0 && gr_is_capable(cap)) {
96816 current->flags |= PF_SUPERPRIV;
96817 return true;
96818 }
96819@@ -386,6 +390,21 @@ bool ns_capable(struct user_namespace *ns, int cap)
96820 }
96821 EXPORT_SYMBOL(ns_capable);
96822
96823+bool ns_capable_nolog(struct user_namespace *ns, int cap)
96824+{
96825+ if (unlikely(!cap_valid(cap))) {
96826+ printk(KERN_CRIT "capable_nolog() called with invalid cap=%u\n", cap);
96827+ BUG();
96828+ }
96829+
96830+ if (security_capable_noaudit(current_cred(), ns, cap) == 0 && gr_is_capable_nolog(cap)) {
96831+ current->flags |= PF_SUPERPRIV;
96832+ return true;
96833+ }
96834+ return false;
96835+}
96836+EXPORT_SYMBOL(ns_capable_nolog);
96837+
96838 /**
96839 * file_ns_capable - Determine if the file's opener had a capability in effect
96840 * @file: The file we want to check
96841@@ -427,6 +446,12 @@ bool capable(int cap)
96842 }
96843 EXPORT_SYMBOL(capable);
96844
96845+bool capable_nolog(int cap)
96846+{
96847+ return ns_capable_nolog(&init_user_ns, cap);
96848+}
96849+EXPORT_SYMBOL(capable_nolog);
96850+
96851 /**
96852 * capable_wrt_inode_uidgid - Check nsown_capable and uid and gid mapped
96853 * @inode: The inode in question
96854@@ -444,3 +469,12 @@ bool capable_wrt_inode_uidgid(const struct inode *inode, int cap)
96855 kgid_has_mapping(ns, inode->i_gid);
96856 }
96857 EXPORT_SYMBOL(capable_wrt_inode_uidgid);
96858+
96859+bool capable_wrt_inode_uidgid_nolog(const struct inode *inode, int cap)
96860+{
96861+ struct user_namespace *ns = current_user_ns();
96862+
96863+ return ns_capable_nolog(ns, cap) && kuid_has_mapping(ns, inode->i_uid) &&
96864+ kgid_has_mapping(ns, inode->i_gid);
96865+}
96866+EXPORT_SYMBOL(capable_wrt_inode_uidgid_nolog);
96867diff --git a/kernel/cgroup.c b/kernel/cgroup.c
96868index 29a7b2c..a64e30a 100644
96869--- a/kernel/cgroup.c
96870+++ b/kernel/cgroup.c
96871@@ -5347,6 +5347,9 @@ static void cgroup_release_agent(struct work_struct *work)
96872 if (!pathbuf || !agentbuf)
96873 goto out;
96874
96875+ if (agentbuf[0] == '\0')
96876+ goto out;
96877+
96878 path = cgroup_path(cgrp, pathbuf, PATH_MAX);
96879 if (!path)
96880 goto out;
96881@@ -5532,7 +5535,7 @@ static int cgroup_css_links_read(struct seq_file *seq, void *v)
96882 struct task_struct *task;
96883 int count = 0;
96884
96885- seq_printf(seq, "css_set %p\n", cset);
96886+ seq_printf(seq, "css_set %pK\n", cset);
96887
96888 list_for_each_entry(task, &cset->tasks, cg_list) {
96889 if (count++ > MAX_TASKS_SHOWN_PER_CSS)
96890diff --git a/kernel/compat.c b/kernel/compat.c
96891index 24f0061..762ec00 100644
96892--- a/kernel/compat.c
96893+++ b/kernel/compat.c
96894@@ -13,6 +13,7 @@
96895
96896 #include <linux/linkage.h>
96897 #include <linux/compat.h>
96898+#include <linux/module.h>
96899 #include <linux/errno.h>
96900 #include <linux/time.h>
96901 #include <linux/signal.h>
96902@@ -220,7 +221,7 @@ static long compat_nanosleep_restart(struct restart_block *restart)
96903 mm_segment_t oldfs;
96904 long ret;
96905
96906- restart->nanosleep.rmtp = (struct timespec __user *) &rmt;
96907+ restart->nanosleep.rmtp = (struct timespec __force_user *) &rmt;
96908 oldfs = get_fs();
96909 set_fs(KERNEL_DS);
96910 ret = hrtimer_nanosleep_restart(restart);
96911@@ -252,7 +253,7 @@ COMPAT_SYSCALL_DEFINE2(nanosleep, struct compat_timespec __user *, rqtp,
96912 oldfs = get_fs();
96913 set_fs(KERNEL_DS);
96914 ret = hrtimer_nanosleep(&tu,
96915- rmtp ? (struct timespec __user *)&rmt : NULL,
96916+ rmtp ? (struct timespec __force_user *)&rmt : NULL,
96917 HRTIMER_MODE_REL, CLOCK_MONOTONIC);
96918 set_fs(oldfs);
96919
96920@@ -378,7 +379,7 @@ COMPAT_SYSCALL_DEFINE1(sigpending, compat_old_sigset_t __user *, set)
96921 mm_segment_t old_fs = get_fs();
96922
96923 set_fs(KERNEL_DS);
96924- ret = sys_sigpending((old_sigset_t __user *) &s);
96925+ ret = sys_sigpending((old_sigset_t __force_user *) &s);
96926 set_fs(old_fs);
96927 if (ret == 0)
96928 ret = put_user(s, set);
96929@@ -468,7 +469,7 @@ COMPAT_SYSCALL_DEFINE2(old_getrlimit, unsigned int, resource,
96930 mm_segment_t old_fs = get_fs();
96931
96932 set_fs(KERNEL_DS);
96933- ret = sys_old_getrlimit(resource, (struct rlimit __user *)&r);
96934+ ret = sys_old_getrlimit(resource, (struct rlimit __force_user *)&r);
96935 set_fs(old_fs);
96936
96937 if (!ret) {
96938@@ -550,8 +551,8 @@ COMPAT_SYSCALL_DEFINE4(wait4,
96939 set_fs (KERNEL_DS);
96940 ret = sys_wait4(pid,
96941 (stat_addr ?
96942- (unsigned int __user *) &status : NULL),
96943- options, (struct rusage __user *) &r);
96944+ (unsigned int __force_user *) &status : NULL),
96945+ options, (struct rusage __force_user *) &r);
96946 set_fs (old_fs);
96947
96948 if (ret > 0) {
96949@@ -577,8 +578,8 @@ COMPAT_SYSCALL_DEFINE5(waitid,
96950 memset(&info, 0, sizeof(info));
96951
96952 set_fs(KERNEL_DS);
96953- ret = sys_waitid(which, pid, (siginfo_t __user *)&info, options,
96954- uru ? (struct rusage __user *)&ru : NULL);
96955+ ret = sys_waitid(which, pid, (siginfo_t __force_user *)&info, options,
96956+ uru ? (struct rusage __force_user *)&ru : NULL);
96957 set_fs(old_fs);
96958
96959 if ((ret < 0) || (info.si_signo == 0))
96960@@ -712,8 +713,8 @@ COMPAT_SYSCALL_DEFINE4(timer_settime, timer_t, timer_id, int, flags,
96961 oldfs = get_fs();
96962 set_fs(KERNEL_DS);
96963 err = sys_timer_settime(timer_id, flags,
96964- (struct itimerspec __user *) &newts,
96965- (struct itimerspec __user *) &oldts);
96966+ (struct itimerspec __force_user *) &newts,
96967+ (struct itimerspec __force_user *) &oldts);
96968 set_fs(oldfs);
96969 if (!err && old && put_compat_itimerspec(old, &oldts))
96970 return -EFAULT;
96971@@ -730,7 +731,7 @@ COMPAT_SYSCALL_DEFINE2(timer_gettime, timer_t, timer_id,
96972 oldfs = get_fs();
96973 set_fs(KERNEL_DS);
96974 err = sys_timer_gettime(timer_id,
96975- (struct itimerspec __user *) &ts);
96976+ (struct itimerspec __force_user *) &ts);
96977 set_fs(oldfs);
96978 if (!err && put_compat_itimerspec(setting, &ts))
96979 return -EFAULT;
96980@@ -749,7 +750,7 @@ COMPAT_SYSCALL_DEFINE2(clock_settime, clockid_t, which_clock,
96981 oldfs = get_fs();
96982 set_fs(KERNEL_DS);
96983 err = sys_clock_settime(which_clock,
96984- (struct timespec __user *) &ts);
96985+ (struct timespec __force_user *) &ts);
96986 set_fs(oldfs);
96987 return err;
96988 }
96989@@ -764,7 +765,7 @@ COMPAT_SYSCALL_DEFINE2(clock_gettime, clockid_t, which_clock,
96990 oldfs = get_fs();
96991 set_fs(KERNEL_DS);
96992 err = sys_clock_gettime(which_clock,
96993- (struct timespec __user *) &ts);
96994+ (struct timespec __force_user *) &ts);
96995 set_fs(oldfs);
96996 if (!err && compat_put_timespec(&ts, tp))
96997 return -EFAULT;
96998@@ -784,7 +785,7 @@ COMPAT_SYSCALL_DEFINE2(clock_adjtime, clockid_t, which_clock,
96999
97000 oldfs = get_fs();
97001 set_fs(KERNEL_DS);
97002- ret = sys_clock_adjtime(which_clock, (struct timex __user *) &txc);
97003+ ret = sys_clock_adjtime(which_clock, (struct timex __force_user *) &txc);
97004 set_fs(oldfs);
97005
97006 err = compat_put_timex(utp, &txc);
97007@@ -804,7 +805,7 @@ COMPAT_SYSCALL_DEFINE2(clock_getres, clockid_t, which_clock,
97008 oldfs = get_fs();
97009 set_fs(KERNEL_DS);
97010 err = sys_clock_getres(which_clock,
97011- (struct timespec __user *) &ts);
97012+ (struct timespec __force_user *) &ts);
97013 set_fs(oldfs);
97014 if (!err && tp && compat_put_timespec(&ts, tp))
97015 return -EFAULT;
97016@@ -818,7 +819,7 @@ static long compat_clock_nanosleep_restart(struct restart_block *restart)
97017 struct timespec tu;
97018 struct compat_timespec __user *rmtp = restart->nanosleep.compat_rmtp;
97019
97020- restart->nanosleep.rmtp = (struct timespec __user *) &tu;
97021+ restart->nanosleep.rmtp = (struct timespec __force_user *) &tu;
97022 oldfs = get_fs();
97023 set_fs(KERNEL_DS);
97024 err = clock_nanosleep_restart(restart);
97025@@ -850,8 +851,8 @@ COMPAT_SYSCALL_DEFINE4(clock_nanosleep, clockid_t, which_clock, int, flags,
97026 oldfs = get_fs();
97027 set_fs(KERNEL_DS);
97028 err = sys_clock_nanosleep(which_clock, flags,
97029- (struct timespec __user *) &in,
97030- (struct timespec __user *) &out);
97031+ (struct timespec __force_user *) &in,
97032+ (struct timespec __force_user *) &out);
97033 set_fs(oldfs);
97034
97035 if ((err == -ERESTART_RESTARTBLOCK) && rmtp &&
97036@@ -912,7 +913,8 @@ long compat_get_bitmap(unsigned long *mask, const compat_ulong_t __user *umask,
97037 * bitmap. We must however ensure the end of the
97038 * kernel bitmap is zeroed.
97039 */
97040- if (nr_compat_longs-- > 0) {
97041+ if (nr_compat_longs) {
97042+ nr_compat_longs--;
97043 if (__get_user(um, umask))
97044 return -EFAULT;
97045 } else {
97046@@ -954,7 +956,8 @@ long compat_put_bitmap(compat_ulong_t __user *umask, unsigned long *mask,
97047 * We dont want to write past the end of the userspace
97048 * bitmap.
97049 */
97050- if (nr_compat_longs-- > 0) {
97051+ if (nr_compat_longs) {
97052+ nr_compat_longs--;
97053 if (__put_user(um, umask))
97054 return -EFAULT;
97055 }
97056@@ -1145,7 +1148,7 @@ COMPAT_SYSCALL_DEFINE2(sched_rr_get_interval,
97057 mm_segment_t old_fs = get_fs();
97058
97059 set_fs(KERNEL_DS);
97060- ret = sys_sched_rr_get_interval(pid, (struct timespec __user *)&t);
97061+ ret = sys_sched_rr_get_interval(pid, (struct timespec __force_user *)&t);
97062 set_fs(old_fs);
97063 if (compat_put_timespec(&t, interval))
97064 return -EFAULT;
97065diff --git a/kernel/configs.c b/kernel/configs.c
97066index c18b1f1..b9a0132 100644
97067--- a/kernel/configs.c
97068+++ b/kernel/configs.c
97069@@ -74,8 +74,19 @@ static int __init ikconfig_init(void)
97070 struct proc_dir_entry *entry;
97071
97072 /* create the current config file */
97073+#if defined(CONFIG_GRKERNSEC_PROC_ADD) || defined(CONFIG_GRKERNSEC_HIDESYM)
97074+#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_HIDESYM)
97075+ entry = proc_create("config.gz", S_IFREG | S_IRUSR, NULL,
97076+ &ikconfig_file_ops);
97077+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
97078+ entry = proc_create("config.gz", S_IFREG | S_IRUSR | S_IRGRP, NULL,
97079+ &ikconfig_file_ops);
97080+#endif
97081+#else
97082 entry = proc_create("config.gz", S_IFREG | S_IRUGO, NULL,
97083 &ikconfig_file_ops);
97084+#endif
97085+
97086 if (!entry)
97087 return -ENOMEM;
97088
97089diff --git a/kernel/cred.c b/kernel/cred.c
97090index e0573a4..26c0fd3 100644
97091--- a/kernel/cred.c
97092+++ b/kernel/cred.c
97093@@ -164,6 +164,16 @@ void exit_creds(struct task_struct *tsk)
97094 validate_creds(cred);
97095 alter_cred_subscribers(cred, -1);
97096 put_cred(cred);
97097+
97098+#ifdef CONFIG_GRKERNSEC_SETXID
97099+ cred = (struct cred *) tsk->delayed_cred;
97100+ if (cred != NULL) {
97101+ tsk->delayed_cred = NULL;
97102+ validate_creds(cred);
97103+ alter_cred_subscribers(cred, -1);
97104+ put_cred(cred);
97105+ }
97106+#endif
97107 }
97108
97109 /**
97110@@ -411,7 +421,7 @@ static bool cred_cap_issubset(const struct cred *set, const struct cred *subset)
97111 * Always returns 0 thus allowing this function to be tail-called at the end
97112 * of, say, sys_setgid().
97113 */
97114-int commit_creds(struct cred *new)
97115+static int __commit_creds(struct cred *new)
97116 {
97117 struct task_struct *task = current;
97118 const struct cred *old = task->real_cred;
97119@@ -430,6 +440,8 @@ int commit_creds(struct cred *new)
97120
97121 get_cred(new); /* we will require a ref for the subj creds too */
97122
97123+ gr_set_role_label(task, new->uid, new->gid);
97124+
97125 /* dumpability changes */
97126 if (!uid_eq(old->euid, new->euid) ||
97127 !gid_eq(old->egid, new->egid) ||
97128@@ -479,6 +491,105 @@ int commit_creds(struct cred *new)
97129 put_cred(old);
97130 return 0;
97131 }
97132+#ifdef CONFIG_GRKERNSEC_SETXID
97133+extern int set_user(struct cred *new);
97134+
97135+void gr_delayed_cred_worker(void)
97136+{
97137+ const struct cred *new = current->delayed_cred;
97138+ struct cred *ncred;
97139+
97140+ current->delayed_cred = NULL;
97141+
97142+ if (!uid_eq(current_uid(), GLOBAL_ROOT_UID) && new != NULL) {
97143+ // from doing get_cred on it when queueing this
97144+ put_cred(new);
97145+ return;
97146+ } else if (new == NULL)
97147+ return;
97148+
97149+ ncred = prepare_creds();
97150+ if (!ncred)
97151+ goto die;
97152+ // uids
97153+ ncred->uid = new->uid;
97154+ ncred->euid = new->euid;
97155+ ncred->suid = new->suid;
97156+ ncred->fsuid = new->fsuid;
97157+ // gids
97158+ ncred->gid = new->gid;
97159+ ncred->egid = new->egid;
97160+ ncred->sgid = new->sgid;
97161+ ncred->fsgid = new->fsgid;
97162+ // groups
97163+ set_groups(ncred, new->group_info);
97164+ // caps
97165+ ncred->securebits = new->securebits;
97166+ ncred->cap_inheritable = new->cap_inheritable;
97167+ ncred->cap_permitted = new->cap_permitted;
97168+ ncred->cap_effective = new->cap_effective;
97169+ ncred->cap_bset = new->cap_bset;
97170+
97171+ if (set_user(ncred)) {
97172+ abort_creds(ncred);
97173+ goto die;
97174+ }
97175+
97176+ // from doing get_cred on it when queueing this
97177+ put_cred(new);
97178+
97179+ __commit_creds(ncred);
97180+ return;
97181+die:
97182+ // from doing get_cred on it when queueing this
97183+ put_cred(new);
97184+ do_group_exit(SIGKILL);
97185+}
97186+#endif
97187+
97188+int commit_creds(struct cred *new)
97189+{
97190+#ifdef CONFIG_GRKERNSEC_SETXID
97191+ int ret;
97192+ int schedule_it = 0;
97193+ struct task_struct *t;
97194+ unsigned oldsecurebits = current_cred()->securebits;
97195+
97196+ /* we won't get called with tasklist_lock held for writing
97197+ and interrupts disabled as the cred struct in that case is
97198+ init_cred
97199+ */
97200+ if (grsec_enable_setxid && !current_is_single_threaded() &&
97201+ uid_eq(current_uid(), GLOBAL_ROOT_UID) &&
97202+ !uid_eq(new->uid, GLOBAL_ROOT_UID)) {
97203+ schedule_it = 1;
97204+ }
97205+ ret = __commit_creds(new);
97206+ if (schedule_it) {
97207+ rcu_read_lock();
97208+ read_lock(&tasklist_lock);
97209+ for (t = next_thread(current); t != current;
97210+ t = next_thread(t)) {
97211+ /* we'll check if the thread has uid 0 in
97212+ * the delayed worker routine
97213+ */
97214+ if (task_securebits(t) == oldsecurebits &&
97215+ t->delayed_cred == NULL) {
97216+ t->delayed_cred = get_cred(new);
97217+ set_tsk_thread_flag(t, TIF_GRSEC_SETXID);
97218+ set_tsk_need_resched(t);
97219+ }
97220+ }
97221+ read_unlock(&tasklist_lock);
97222+ rcu_read_unlock();
97223+ }
97224+
97225+ return ret;
97226+#else
97227+ return __commit_creds(new);
97228+#endif
97229+}
97230+
97231 EXPORT_SYMBOL(commit_creds);
97232
97233 /**
97234diff --git a/kernel/debug/debug_core.c b/kernel/debug/debug_core.c
97235index 0874e2e..5b32cc9 100644
97236--- a/kernel/debug/debug_core.c
97237+++ b/kernel/debug/debug_core.c
97238@@ -127,7 +127,7 @@ static DEFINE_RAW_SPINLOCK(dbg_slave_lock);
97239 */
97240 static atomic_t masters_in_kgdb;
97241 static atomic_t slaves_in_kgdb;
97242-static atomic_t kgdb_break_tasklet_var;
97243+static atomic_unchecked_t kgdb_break_tasklet_var;
97244 atomic_t kgdb_setting_breakpoint;
97245
97246 struct task_struct *kgdb_usethread;
97247@@ -137,7 +137,7 @@ int kgdb_single_step;
97248 static pid_t kgdb_sstep_pid;
97249
97250 /* to keep track of the CPU which is doing the single stepping*/
97251-atomic_t kgdb_cpu_doing_single_step = ATOMIC_INIT(-1);
97252+atomic_unchecked_t kgdb_cpu_doing_single_step = ATOMIC_INIT(-1);
97253
97254 /*
97255 * If you are debugging a problem where roundup (the collection of
97256@@ -552,7 +552,7 @@ return_normal:
97257 * kernel will only try for the value of sstep_tries before
97258 * giving up and continuing on.
97259 */
97260- if (atomic_read(&kgdb_cpu_doing_single_step) != -1 &&
97261+ if (atomic_read_unchecked(&kgdb_cpu_doing_single_step) != -1 &&
97262 (kgdb_info[cpu].task &&
97263 kgdb_info[cpu].task->pid != kgdb_sstep_pid) && --sstep_tries) {
97264 atomic_set(&kgdb_active, -1);
97265@@ -654,8 +654,8 @@ cpu_master_loop:
97266 }
97267
97268 kgdb_restore:
97269- if (atomic_read(&kgdb_cpu_doing_single_step) != -1) {
97270- int sstep_cpu = atomic_read(&kgdb_cpu_doing_single_step);
97271+ if (atomic_read_unchecked(&kgdb_cpu_doing_single_step) != -1) {
97272+ int sstep_cpu = atomic_read_unchecked(&kgdb_cpu_doing_single_step);
97273 if (kgdb_info[sstep_cpu].task)
97274 kgdb_sstep_pid = kgdb_info[sstep_cpu].task->pid;
97275 else
97276@@ -949,18 +949,18 @@ static void kgdb_unregister_callbacks(void)
97277 static void kgdb_tasklet_bpt(unsigned long ing)
97278 {
97279 kgdb_breakpoint();
97280- atomic_set(&kgdb_break_tasklet_var, 0);
97281+ atomic_set_unchecked(&kgdb_break_tasklet_var, 0);
97282 }
97283
97284 static DECLARE_TASKLET(kgdb_tasklet_breakpoint, kgdb_tasklet_bpt, 0);
97285
97286 void kgdb_schedule_breakpoint(void)
97287 {
97288- if (atomic_read(&kgdb_break_tasklet_var) ||
97289+ if (atomic_read_unchecked(&kgdb_break_tasklet_var) ||
97290 atomic_read(&kgdb_active) != -1 ||
97291 atomic_read(&kgdb_setting_breakpoint))
97292 return;
97293- atomic_inc(&kgdb_break_tasklet_var);
97294+ atomic_inc_unchecked(&kgdb_break_tasklet_var);
97295 tasklet_schedule(&kgdb_tasklet_breakpoint);
97296 }
97297 EXPORT_SYMBOL_GPL(kgdb_schedule_breakpoint);
97298diff --git a/kernel/debug/kdb/kdb_main.c b/kernel/debug/kdb/kdb_main.c
97299index 41213454..861e178 100644
97300--- a/kernel/debug/kdb/kdb_main.c
97301+++ b/kernel/debug/kdb/kdb_main.c
97302@@ -2021,7 +2021,7 @@ static int kdb_lsmod(int argc, const char **argv)
97303 continue;
97304
97305 kdb_printf("%-20s%8u 0x%p ", mod->name,
97306- mod->core_size, (void *)mod);
97307+ mod->core_size_rx + mod->core_size_rw, (void *)mod);
97308 #ifdef CONFIG_MODULE_UNLOAD
97309 kdb_printf("%4d ", module_refcount(mod));
97310 #endif
97311@@ -2031,7 +2031,7 @@ static int kdb_lsmod(int argc, const char **argv)
97312 kdb_printf(" (Loading)");
97313 else
97314 kdb_printf(" (Live)");
97315- kdb_printf(" 0x%p", mod->module_core);
97316+ kdb_printf(" 0x%p 0x%p", mod->module_core_rx, mod->module_core_rw);
97317
97318 #ifdef CONFIG_MODULE_UNLOAD
97319 {
97320diff --git a/kernel/events/core.c b/kernel/events/core.c
97321index 2fabc06..79cceec 100644
97322--- a/kernel/events/core.c
97323+++ b/kernel/events/core.c
97324@@ -170,8 +170,15 @@ static struct srcu_struct pmus_srcu;
97325 * 0 - disallow raw tracepoint access for unpriv
97326 * 1 - disallow cpu events for unpriv
97327 * 2 - disallow kernel profiling for unpriv
97328+ * 3 - disallow all unpriv perf event use
97329 */
97330-int sysctl_perf_event_paranoid __read_mostly = 1;
97331+#ifdef CONFIG_GRKERNSEC_PERF_HARDEN
97332+int sysctl_perf_event_legitimately_concerned __read_mostly = 3;
97333+#elif defined(CONFIG_GRKERNSEC_HIDESYM)
97334+int sysctl_perf_event_legitimately_concerned __read_mostly = 2;
97335+#else
97336+int sysctl_perf_event_legitimately_concerned __read_mostly = 1;
97337+#endif
97338
97339 /* Minimum for 512 kiB + 1 user control page */
97340 int sysctl_perf_event_mlock __read_mostly = 512 + (PAGE_SIZE / 1024); /* 'free' kiB per user */
97341@@ -197,7 +204,7 @@ void update_perf_cpu_limits(void)
97342
97343 tmp *= sysctl_perf_cpu_time_max_percent;
97344 do_div(tmp, 100);
97345- ACCESS_ONCE(perf_sample_allowed_ns) = tmp;
97346+ ACCESS_ONCE_RW(perf_sample_allowed_ns) = tmp;
97347 }
97348
97349 static int perf_rotate_context(struct perf_cpu_context *cpuctx);
97350@@ -303,7 +310,7 @@ void perf_sample_event_took(u64 sample_len_ns)
97351 }
97352 }
97353
97354-static atomic64_t perf_event_id;
97355+static atomic64_unchecked_t perf_event_id;
97356
97357 static void cpu_ctx_sched_out(struct perf_cpu_context *cpuctx,
97358 enum event_type_t event_type);
97359@@ -3220,7 +3227,7 @@ static void __perf_event_read(void *info)
97360
97361 static inline u64 perf_event_count(struct perf_event *event)
97362 {
97363- return local64_read(&event->count) + atomic64_read(&event->child_count);
97364+ return local64_read(&event->count) + atomic64_read_unchecked(&event->child_count);
97365 }
97366
97367 static u64 perf_event_read(struct perf_event *event)
97368@@ -3656,9 +3663,9 @@ u64 perf_event_read_value(struct perf_event *event, u64 *enabled, u64 *running)
97369 mutex_lock(&event->child_mutex);
97370 total += perf_event_read(event);
97371 *enabled += event->total_time_enabled +
97372- atomic64_read(&event->child_total_time_enabled);
97373+ atomic64_read_unchecked(&event->child_total_time_enabled);
97374 *running += event->total_time_running +
97375- atomic64_read(&event->child_total_time_running);
97376+ atomic64_read_unchecked(&event->child_total_time_running);
97377
97378 list_for_each_entry(child, &event->child_list, child_list) {
97379 total += perf_event_read(child);
97380@@ -4147,10 +4154,10 @@ void perf_event_update_userpage(struct perf_event *event)
97381 userpg->offset -= local64_read(&event->hw.prev_count);
97382
97383 userpg->time_enabled = enabled +
97384- atomic64_read(&event->child_total_time_enabled);
97385+ atomic64_read_unchecked(&event->child_total_time_enabled);
97386
97387 userpg->time_running = running +
97388- atomic64_read(&event->child_total_time_running);
97389+ atomic64_read_unchecked(&event->child_total_time_running);
97390
97391 arch_perf_update_userpage(event, userpg, now);
97392
97393@@ -4740,7 +4747,7 @@ perf_output_sample_ustack(struct perf_output_handle *handle, u64 dump_size,
97394
97395 /* Data. */
97396 sp = perf_user_stack_pointer(regs);
97397- rem = __output_copy_user(handle, (void *) sp, dump_size);
97398+ rem = __output_copy_user(handle, (void __user *) sp, dump_size);
97399 dyn_size = dump_size - rem;
97400
97401 perf_output_skip(handle, rem);
97402@@ -4831,11 +4838,11 @@ static void perf_output_read_one(struct perf_output_handle *handle,
97403 values[n++] = perf_event_count(event);
97404 if (read_format & PERF_FORMAT_TOTAL_TIME_ENABLED) {
97405 values[n++] = enabled +
97406- atomic64_read(&event->child_total_time_enabled);
97407+ atomic64_read_unchecked(&event->child_total_time_enabled);
97408 }
97409 if (read_format & PERF_FORMAT_TOTAL_TIME_RUNNING) {
97410 values[n++] = running +
97411- atomic64_read(&event->child_total_time_running);
97412+ atomic64_read_unchecked(&event->child_total_time_running);
97413 }
97414 if (read_format & PERF_FORMAT_ID)
97415 values[n++] = primary_event_id(event);
97416@@ -7180,7 +7187,7 @@ perf_event_alloc(struct perf_event_attr *attr, int cpu,
97417 event->parent = parent_event;
97418
97419 event->ns = get_pid_ns(task_active_pid_ns(current));
97420- event->id = atomic64_inc_return(&perf_event_id);
97421+ event->id = atomic64_inc_return_unchecked(&perf_event_id);
97422
97423 event->state = PERF_EVENT_STATE_INACTIVE;
97424
97425@@ -7470,6 +7477,11 @@ SYSCALL_DEFINE5(perf_event_open,
97426 if (flags & ~PERF_FLAG_ALL)
97427 return -EINVAL;
97428
97429+#ifdef CONFIG_GRKERNSEC_PERF_HARDEN
97430+ if (perf_paranoid_any() && !capable(CAP_SYS_ADMIN))
97431+ return -EACCES;
97432+#endif
97433+
97434 err = perf_copy_attr(attr_uptr, &attr);
97435 if (err)
97436 return err;
97437@@ -7892,10 +7904,10 @@ static void sync_child_event(struct perf_event *child_event,
97438 /*
97439 * Add back the child's count to the parent's count:
97440 */
97441- atomic64_add(child_val, &parent_event->child_count);
97442- atomic64_add(child_event->total_time_enabled,
97443+ atomic64_add_unchecked(child_val, &parent_event->child_count);
97444+ atomic64_add_unchecked(child_event->total_time_enabled,
97445 &parent_event->child_total_time_enabled);
97446- atomic64_add(child_event->total_time_running,
97447+ atomic64_add_unchecked(child_event->total_time_running,
97448 &parent_event->child_total_time_running);
97449
97450 /*
97451diff --git a/kernel/events/internal.h b/kernel/events/internal.h
97452index 569b2187..19940d9 100644
97453--- a/kernel/events/internal.h
97454+++ b/kernel/events/internal.h
97455@@ -81,10 +81,10 @@ static inline unsigned long perf_data_size(struct ring_buffer *rb)
97456 return rb->nr_pages << (PAGE_SHIFT + page_order(rb));
97457 }
97458
97459-#define DEFINE_OUTPUT_COPY(func_name, memcpy_func) \
97460+#define DEFINE_OUTPUT_COPY(func_name, memcpy_func, user) \
97461 static inline unsigned long \
97462 func_name(struct perf_output_handle *handle, \
97463- const void *buf, unsigned long len) \
97464+ const void user *buf, unsigned long len) \
97465 { \
97466 unsigned long size, written; \
97467 \
97468@@ -117,7 +117,7 @@ memcpy_common(void *dst, const void *src, unsigned long n)
97469 return 0;
97470 }
97471
97472-DEFINE_OUTPUT_COPY(__output_copy, memcpy_common)
97473+DEFINE_OUTPUT_COPY(__output_copy, memcpy_common, )
97474
97475 static inline unsigned long
97476 memcpy_skip(void *dst, const void *src, unsigned long n)
97477@@ -125,7 +125,7 @@ memcpy_skip(void *dst, const void *src, unsigned long n)
97478 return 0;
97479 }
97480
97481-DEFINE_OUTPUT_COPY(__output_skip, memcpy_skip)
97482+DEFINE_OUTPUT_COPY(__output_skip, memcpy_skip, )
97483
97484 #ifndef arch_perf_out_copy_user
97485 #define arch_perf_out_copy_user arch_perf_out_copy_user
97486@@ -143,7 +143,7 @@ arch_perf_out_copy_user(void *dst, const void *src, unsigned long n)
97487 }
97488 #endif
97489
97490-DEFINE_OUTPUT_COPY(__output_copy_user, arch_perf_out_copy_user)
97491+DEFINE_OUTPUT_COPY(__output_copy_user, arch_perf_out_copy_user, __user)
97492
97493 /* Callchain handling */
97494 extern struct perf_callchain_entry *
97495diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c
97496index cb346f2..e4dc317 100644
97497--- a/kernel/events/uprobes.c
97498+++ b/kernel/events/uprobes.c
97499@@ -1670,7 +1670,7 @@ static int is_trap_at_addr(struct mm_struct *mm, unsigned long vaddr)
97500 {
97501 struct page *page;
97502 uprobe_opcode_t opcode;
97503- int result;
97504+ long result;
97505
97506 pagefault_disable();
97507 result = __copy_from_user_inatomic(&opcode, (void __user*)vaddr,
97508diff --git a/kernel/exit.c b/kernel/exit.c
97509index feff10b..f623dd5 100644
97510--- a/kernel/exit.c
97511+++ b/kernel/exit.c
97512@@ -171,6 +171,10 @@ void release_task(struct task_struct *p)
97513 struct task_struct *leader;
97514 int zap_leader;
97515 repeat:
97516+#ifdef CONFIG_NET
97517+ gr_del_task_from_ip_table(p);
97518+#endif
97519+
97520 /* don't need to get the RCU readlock here - the process is dead and
97521 * can't be modifying its own credentials. But shut RCU-lockdep up */
97522 rcu_read_lock();
97523@@ -656,6 +660,8 @@ void do_exit(long code)
97524 int group_dead;
97525 TASKS_RCU(int tasks_rcu_i);
97526
97527+ set_fs(USER_DS);
97528+
97529 profile_task_exit(tsk);
97530
97531 WARN_ON(blk_needs_flush_plug(tsk));
97532@@ -672,7 +678,6 @@ void do_exit(long code)
97533 * mm_release()->clear_child_tid() from writing to a user-controlled
97534 * kernel address.
97535 */
97536- set_fs(USER_DS);
97537
97538 ptrace_event(PTRACE_EVENT_EXIT, code);
97539
97540@@ -730,6 +735,9 @@ void do_exit(long code)
97541 tsk->exit_code = code;
97542 taskstats_exit(tsk, group_dead);
97543
97544+ gr_acl_handle_psacct(tsk, code);
97545+ gr_acl_handle_exit();
97546+
97547 exit_mm(tsk);
97548
97549 if (group_dead)
97550@@ -849,7 +857,7 @@ SYSCALL_DEFINE1(exit, int, error_code)
97551 * Take down every thread in the group. This is called by fatal signals
97552 * as well as by sys_exit_group (below).
97553 */
97554-void
97555+__noreturn void
97556 do_group_exit(int exit_code)
97557 {
97558 struct signal_struct *sig = current->signal;
97559diff --git a/kernel/fork.c b/kernel/fork.c
97560index cf65139..704476e 100644
97561--- a/kernel/fork.c
97562+++ b/kernel/fork.c
97563@@ -177,12 +177,54 @@ static void free_thread_info(struct thread_info *ti)
97564 void thread_info_cache_init(void)
97565 {
97566 thread_info_cache = kmem_cache_create("thread_info", THREAD_SIZE,
97567- THREAD_SIZE, 0, NULL);
97568+ THREAD_SIZE, SLAB_USERCOPY, NULL);
97569 BUG_ON(thread_info_cache == NULL);
97570 }
97571 # endif
97572 #endif
97573
97574+#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
97575+static inline struct thread_info *gr_alloc_thread_info_node(struct task_struct *tsk,
97576+ int node, void **lowmem_stack)
97577+{
97578+ struct page *pages[THREAD_SIZE / PAGE_SIZE];
97579+ void *ret = NULL;
97580+ unsigned int i;
97581+
97582+ *lowmem_stack = alloc_thread_info_node(tsk, node);
97583+ if (*lowmem_stack == NULL)
97584+ goto out;
97585+
97586+ for (i = 0; i < THREAD_SIZE / PAGE_SIZE; i++)
97587+ pages[i] = virt_to_page(*lowmem_stack + (i * PAGE_SIZE));
97588+
97589+ /* use VM_IOREMAP to gain THREAD_SIZE alignment */
97590+ ret = vmap(pages, THREAD_SIZE / PAGE_SIZE, VM_IOREMAP, PAGE_KERNEL);
97591+ if (ret == NULL) {
97592+ free_thread_info(*lowmem_stack);
97593+ *lowmem_stack = NULL;
97594+ }
97595+
97596+out:
97597+ return ret;
97598+}
97599+
97600+static inline void gr_free_thread_info(struct task_struct *tsk, struct thread_info *ti)
97601+{
97602+ unmap_process_stacks(tsk);
97603+}
97604+#else
97605+static inline struct thread_info *gr_alloc_thread_info_node(struct task_struct *tsk,
97606+ int node, void **lowmem_stack)
97607+{
97608+ return alloc_thread_info_node(tsk, node);
97609+}
97610+static inline void gr_free_thread_info(struct task_struct *tsk, struct thread_info *ti)
97611+{
97612+ free_thread_info(ti);
97613+}
97614+#endif
97615+
97616 /* SLAB cache for signal_struct structures (tsk->signal) */
97617 static struct kmem_cache *signal_cachep;
97618
97619@@ -201,18 +243,22 @@ struct kmem_cache *vm_area_cachep;
97620 /* SLAB cache for mm_struct structures (tsk->mm) */
97621 static struct kmem_cache *mm_cachep;
97622
97623-static void account_kernel_stack(struct thread_info *ti, int account)
97624+static void account_kernel_stack(struct task_struct *tsk, struct thread_info *ti, int account)
97625 {
97626+#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
97627+ struct zone *zone = page_zone(virt_to_page(tsk->lowmem_stack));
97628+#else
97629 struct zone *zone = page_zone(virt_to_page(ti));
97630+#endif
97631
97632 mod_zone_page_state(zone, NR_KERNEL_STACK, account);
97633 }
97634
97635 void free_task(struct task_struct *tsk)
97636 {
97637- account_kernel_stack(tsk->stack, -1);
97638+ account_kernel_stack(tsk, tsk->stack, -1);
97639 arch_release_thread_info(tsk->stack);
97640- free_thread_info(tsk->stack);
97641+ gr_free_thread_info(tsk, tsk->stack);
97642 rt_mutex_debug_task_free(tsk);
97643 ftrace_graph_exit_task(tsk);
97644 put_seccomp_filter(tsk);
97645@@ -306,6 +352,7 @@ static struct task_struct *dup_task_struct(struct task_struct *orig)
97646 {
97647 struct task_struct *tsk;
97648 struct thread_info *ti;
97649+ void *lowmem_stack;
97650 int node = tsk_fork_get_node(orig);
97651 int err;
97652
97653@@ -313,7 +360,7 @@ static struct task_struct *dup_task_struct(struct task_struct *orig)
97654 if (!tsk)
97655 return NULL;
97656
97657- ti = alloc_thread_info_node(tsk, node);
97658+ ti = gr_alloc_thread_info_node(tsk, node, &lowmem_stack);
97659 if (!ti)
97660 goto free_tsk;
97661
97662@@ -322,6 +369,9 @@ static struct task_struct *dup_task_struct(struct task_struct *orig)
97663 goto free_ti;
97664
97665 tsk->stack = ti;
97666+#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
97667+ tsk->lowmem_stack = lowmem_stack;
97668+#endif
97669 #ifdef CONFIG_SECCOMP
97670 /*
97671 * We must handle setting up seccomp filters once we're under
97672@@ -338,7 +388,7 @@ static struct task_struct *dup_task_struct(struct task_struct *orig)
97673 set_task_stack_end_magic(tsk);
97674
97675 #ifdef CONFIG_CC_STACKPROTECTOR
97676- tsk->stack_canary = get_random_int();
97677+ tsk->stack_canary = pax_get_random_long();
97678 #endif
97679
97680 /*
97681@@ -352,24 +402,89 @@ static struct task_struct *dup_task_struct(struct task_struct *orig)
97682 tsk->splice_pipe = NULL;
97683 tsk->task_frag.page = NULL;
97684
97685- account_kernel_stack(ti, 1);
97686+ account_kernel_stack(tsk, ti, 1);
97687
97688 return tsk;
97689
97690 free_ti:
97691- free_thread_info(ti);
97692+ gr_free_thread_info(tsk, ti);
97693 free_tsk:
97694 free_task_struct(tsk);
97695 return NULL;
97696 }
97697
97698 #ifdef CONFIG_MMU
97699-static int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm)
97700+static struct vm_area_struct *dup_vma(struct mm_struct *mm, struct mm_struct *oldmm, struct vm_area_struct *mpnt)
97701+{
97702+ struct vm_area_struct *tmp;
97703+ unsigned long charge;
97704+ struct file *file;
97705+ int retval;
97706+
97707+ charge = 0;
97708+ if (mpnt->vm_flags & VM_ACCOUNT) {
97709+ unsigned long len = vma_pages(mpnt);
97710+
97711+ if (security_vm_enough_memory_mm(oldmm, len)) /* sic */
97712+ goto fail_nomem;
97713+ charge = len;
97714+ }
97715+ tmp = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL);
97716+ if (!tmp)
97717+ goto fail_nomem;
97718+ *tmp = *mpnt;
97719+ tmp->vm_mm = mm;
97720+ INIT_LIST_HEAD(&tmp->anon_vma_chain);
97721+ retval = vma_dup_policy(mpnt, tmp);
97722+ if (retval)
97723+ goto fail_nomem_policy;
97724+ if (anon_vma_fork(tmp, mpnt))
97725+ goto fail_nomem_anon_vma_fork;
97726+ tmp->vm_flags &= ~VM_LOCKED;
97727+ tmp->vm_next = tmp->vm_prev = NULL;
97728+ tmp->vm_mirror = NULL;
97729+ file = tmp->vm_file;
97730+ if (file) {
97731+ struct inode *inode = file_inode(file);
97732+ struct address_space *mapping = file->f_mapping;
97733+
97734+ get_file(file);
97735+ if (tmp->vm_flags & VM_DENYWRITE)
97736+ atomic_dec(&inode->i_writecount);
97737+ i_mmap_lock_write(mapping);
97738+ if (tmp->vm_flags & VM_SHARED)
97739+ atomic_inc(&mapping->i_mmap_writable);
97740+ flush_dcache_mmap_lock(mapping);
97741+ /* insert tmp into the share list, just after mpnt */
97742+ vma_interval_tree_insert_after(tmp, mpnt, &mapping->i_mmap);
97743+ flush_dcache_mmap_unlock(mapping);
97744+ i_mmap_unlock_write(mapping);
97745+ }
97746+
97747+ /*
97748+ * Clear hugetlb-related page reserves for children. This only
97749+ * affects MAP_PRIVATE mappings. Faults generated by the child
97750+ * are not guaranteed to succeed, even if read-only
97751+ */
97752+ if (is_vm_hugetlb_page(tmp))
97753+ reset_vma_resv_huge_pages(tmp);
97754+
97755+ return tmp;
97756+
97757+fail_nomem_anon_vma_fork:
97758+ mpol_put(vma_policy(tmp));
97759+fail_nomem_policy:
97760+ kmem_cache_free(vm_area_cachep, tmp);
97761+fail_nomem:
97762+ vm_unacct_memory(charge);
97763+ return NULL;
97764+}
97765+
97766+static __latent_entropy int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm)
97767 {
97768 struct vm_area_struct *mpnt, *tmp, *prev, **pprev;
97769 struct rb_node **rb_link, *rb_parent;
97770 int retval;
97771- unsigned long charge;
97772
97773 uprobe_start_dup_mmap();
97774 down_write(&oldmm->mmap_sem);
97775@@ -397,51 +512,15 @@ static int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm)
97776
97777 prev = NULL;
97778 for (mpnt = oldmm->mmap; mpnt; mpnt = mpnt->vm_next) {
97779- struct file *file;
97780-
97781 if (mpnt->vm_flags & VM_DONTCOPY) {
97782 vm_stat_account(mm, mpnt->vm_flags, mpnt->vm_file,
97783 -vma_pages(mpnt));
97784 continue;
97785 }
97786- charge = 0;
97787- if (mpnt->vm_flags & VM_ACCOUNT) {
97788- unsigned long len = vma_pages(mpnt);
97789-
97790- if (security_vm_enough_memory_mm(oldmm, len)) /* sic */
97791- goto fail_nomem;
97792- charge = len;
97793- }
97794- tmp = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL);
97795- if (!tmp)
97796- goto fail_nomem;
97797- *tmp = *mpnt;
97798- INIT_LIST_HEAD(&tmp->anon_vma_chain);
97799- retval = vma_dup_policy(mpnt, tmp);
97800- if (retval)
97801- goto fail_nomem_policy;
97802- tmp->vm_mm = mm;
97803- if (anon_vma_fork(tmp, mpnt))
97804- goto fail_nomem_anon_vma_fork;
97805- tmp->vm_flags &= ~VM_LOCKED;
97806- tmp->vm_next = tmp->vm_prev = NULL;
97807- file = tmp->vm_file;
97808- if (file) {
97809- struct inode *inode = file_inode(file);
97810- struct address_space *mapping = file->f_mapping;
97811-
97812- get_file(file);
97813- if (tmp->vm_flags & VM_DENYWRITE)
97814- atomic_dec(&inode->i_writecount);
97815- i_mmap_lock_write(mapping);
97816- if (tmp->vm_flags & VM_SHARED)
97817- atomic_inc(&mapping->i_mmap_writable);
97818- flush_dcache_mmap_lock(mapping);
97819- /* insert tmp into the share list, just after mpnt */
97820- vma_interval_tree_insert_after(tmp, mpnt,
97821- &mapping->i_mmap);
97822- flush_dcache_mmap_unlock(mapping);
97823- i_mmap_unlock_write(mapping);
97824+ tmp = dup_vma(mm, oldmm, mpnt);
97825+ if (!tmp) {
97826+ retval = -ENOMEM;
97827+ goto out;
97828 }
97829
97830 /*
97831@@ -473,6 +552,31 @@ static int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm)
97832 if (retval)
97833 goto out;
97834 }
97835+
97836+#ifdef CONFIG_PAX_SEGMEXEC
97837+ if (oldmm->pax_flags & MF_PAX_SEGMEXEC) {
97838+ struct vm_area_struct *mpnt_m;
97839+
97840+ for (mpnt = oldmm->mmap, mpnt_m = mm->mmap; mpnt; mpnt = mpnt->vm_next, mpnt_m = mpnt_m->vm_next) {
97841+ BUG_ON(!mpnt_m || mpnt_m->vm_mirror || mpnt->vm_mm != oldmm || mpnt_m->vm_mm != mm);
97842+
97843+ if (!mpnt->vm_mirror)
97844+ continue;
97845+
97846+ if (mpnt->vm_end <= SEGMEXEC_TASK_SIZE) {
97847+ BUG_ON(mpnt->vm_mirror->vm_mirror != mpnt);
97848+ mpnt->vm_mirror = mpnt_m;
97849+ } else {
97850+ BUG_ON(mpnt->vm_mirror->vm_mirror == mpnt || mpnt->vm_mirror->vm_mirror->vm_mm != mm);
97851+ mpnt_m->vm_mirror = mpnt->vm_mirror->vm_mirror;
97852+ mpnt_m->vm_mirror->vm_mirror = mpnt_m;
97853+ mpnt->vm_mirror->vm_mirror = mpnt;
97854+ }
97855+ }
97856+ BUG_ON(mpnt_m);
97857+ }
97858+#endif
97859+
97860 /* a new mm has just been created */
97861 arch_dup_mmap(oldmm, mm);
97862 retval = 0;
97863@@ -482,14 +586,6 @@ out:
97864 up_write(&oldmm->mmap_sem);
97865 uprobe_end_dup_mmap();
97866 return retval;
97867-fail_nomem_anon_vma_fork:
97868- mpol_put(vma_policy(tmp));
97869-fail_nomem_policy:
97870- kmem_cache_free(vm_area_cachep, tmp);
97871-fail_nomem:
97872- retval = -ENOMEM;
97873- vm_unacct_memory(charge);
97874- goto out;
97875 }
97876
97877 static inline int mm_alloc_pgd(struct mm_struct *mm)
97878@@ -739,8 +835,8 @@ struct mm_struct *mm_access(struct task_struct *task, unsigned int mode)
97879 return ERR_PTR(err);
97880
97881 mm = get_task_mm(task);
97882- if (mm && mm != current->mm &&
97883- !ptrace_may_access(task, mode)) {
97884+ if (mm && ((mm != current->mm && !ptrace_may_access(task, mode)) ||
97885+ (mode == PTRACE_MODE_ATTACH && (gr_handle_proc_ptrace(task) || gr_acl_handle_procpidmem(task))))) {
97886 mmput(mm);
97887 mm = ERR_PTR(-EACCES);
97888 }
97889@@ -943,13 +1039,20 @@ static int copy_fs(unsigned long clone_flags, struct task_struct *tsk)
97890 spin_unlock(&fs->lock);
97891 return -EAGAIN;
97892 }
97893- fs->users++;
97894+ atomic_inc(&fs->users);
97895 spin_unlock(&fs->lock);
97896 return 0;
97897 }
97898 tsk->fs = copy_fs_struct(fs);
97899 if (!tsk->fs)
97900 return -ENOMEM;
97901+ /* Carry through gr_chroot_dentry and is_chrooted instead
97902+ of recomputing it here. Already copied when the task struct
97903+ is duplicated. This allows pivot_root to not be treated as
97904+ a chroot
97905+ */
97906+ //gr_set_chroot_entries(tsk, &tsk->fs->root);
97907+
97908 return 0;
97909 }
97910
97911@@ -1187,7 +1290,7 @@ init_task_pid(struct task_struct *task, enum pid_type type, struct pid *pid)
97912 * parts of the process environment (as per the clone
97913 * flags). The actual kick-off is left to the caller.
97914 */
97915-static struct task_struct *copy_process(unsigned long clone_flags,
97916+static __latent_entropy struct task_struct *copy_process(unsigned long clone_flags,
97917 unsigned long stack_start,
97918 unsigned long stack_size,
97919 int __user *child_tidptr,
97920@@ -1258,6 +1361,9 @@ static struct task_struct *copy_process(unsigned long clone_flags,
97921 DEBUG_LOCKS_WARN_ON(!p->softirqs_enabled);
97922 #endif
97923 retval = -EAGAIN;
97924+
97925+ gr_learn_resource(p, RLIMIT_NPROC, atomic_read(&p->real_cred->user->processes), 0);
97926+
97927 if (atomic_read(&p->real_cred->user->processes) >=
97928 task_rlimit(p, RLIMIT_NPROC)) {
97929 if (p->real_cred->user != INIT_USER &&
97930@@ -1507,6 +1613,11 @@ static struct task_struct *copy_process(unsigned long clone_flags,
97931 goto bad_fork_free_pid;
97932 }
97933
97934+ /* synchronizes with gr_set_acls()
97935+ we need to call this past the point of no return for fork()
97936+ */
97937+ gr_copy_label(p);
97938+
97939 if (likely(p->pid)) {
97940 ptrace_init_task(p, (clone_flags & CLONE_PTRACE) || trace);
97941
97942@@ -1597,6 +1708,8 @@ bad_fork_cleanup_count:
97943 bad_fork_free:
97944 free_task(p);
97945 fork_out:
97946+ gr_log_forkfail(retval);
97947+
97948 return ERR_PTR(retval);
97949 }
97950
97951@@ -1658,6 +1771,7 @@ long do_fork(unsigned long clone_flags,
97952
97953 p = copy_process(clone_flags, stack_start, stack_size,
97954 child_tidptr, NULL, trace);
97955+ add_latent_entropy();
97956 /*
97957 * Do this prior waking up the new thread - the thread pointer
97958 * might get invalid after that point, if the thread exits quickly.
97959@@ -1674,6 +1788,8 @@ long do_fork(unsigned long clone_flags,
97960 if (clone_flags & CLONE_PARENT_SETTID)
97961 put_user(nr, parent_tidptr);
97962
97963+ gr_handle_brute_check();
97964+
97965 if (clone_flags & CLONE_VFORK) {
97966 p->vfork_done = &vfork;
97967 init_completion(&vfork);
97968@@ -1792,7 +1908,7 @@ void __init proc_caches_init(void)
97969 mm_cachep = kmem_cache_create("mm_struct",
97970 sizeof(struct mm_struct), ARCH_MIN_MMSTRUCT_ALIGN,
97971 SLAB_HWCACHE_ALIGN|SLAB_PANIC|SLAB_NOTRACK, NULL);
97972- vm_area_cachep = KMEM_CACHE(vm_area_struct, SLAB_PANIC);
97973+ vm_area_cachep = KMEM_CACHE(vm_area_struct, SLAB_PANIC | SLAB_NO_SANITIZE);
97974 mmap_init();
97975 nsproxy_cache_init();
97976 }
97977@@ -1832,7 +1948,7 @@ static int unshare_fs(unsigned long unshare_flags, struct fs_struct **new_fsp)
97978 return 0;
97979
97980 /* don't need lock here; in the worst case we'll do useless copy */
97981- if (fs->users == 1)
97982+ if (atomic_read(&fs->users) == 1)
97983 return 0;
97984
97985 *new_fsp = copy_fs_struct(fs);
97986@@ -1944,7 +2060,8 @@ SYSCALL_DEFINE1(unshare, unsigned long, unshare_flags)
97987 fs = current->fs;
97988 spin_lock(&fs->lock);
97989 current->fs = new_fs;
97990- if (--fs->users)
97991+ gr_set_chroot_entries(current, &current->fs->root);
97992+ if (atomic_dec_return(&fs->users))
97993 new_fs = NULL;
97994 else
97995 new_fs = fs;
97996diff --git a/kernel/futex.c b/kernel/futex.c
97997index 2a5e383..878bac6 100644
97998--- a/kernel/futex.c
97999+++ b/kernel/futex.c
98000@@ -201,7 +201,7 @@ struct futex_pi_state {
98001 atomic_t refcount;
98002
98003 union futex_key key;
98004-};
98005+} __randomize_layout;
98006
98007 /**
98008 * struct futex_q - The hashed futex queue entry, one per waiting task
98009@@ -235,7 +235,7 @@ struct futex_q {
98010 struct rt_mutex_waiter *rt_waiter;
98011 union futex_key *requeue_pi_key;
98012 u32 bitset;
98013-};
98014+} __randomize_layout;
98015
98016 static const struct futex_q futex_q_init = {
98017 /* list gets initialized in queue_me()*/
98018@@ -402,6 +402,11 @@ get_futex_key(u32 __user *uaddr, int fshared, union futex_key *key, int rw)
98019 struct page *page, *page_head;
98020 int err, ro = 0;
98021
98022+#ifdef CONFIG_PAX_SEGMEXEC
98023+ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && address >= SEGMEXEC_TASK_SIZE)
98024+ return -EFAULT;
98025+#endif
98026+
98027 /*
98028 * The futex address must be "naturally" aligned.
98029 */
98030@@ -601,7 +606,7 @@ static int cmpxchg_futex_value_locked(u32 *curval, u32 __user *uaddr,
98031
98032 static int get_futex_value_locked(u32 *dest, u32 __user *from)
98033 {
98034- int ret;
98035+ unsigned long ret;
98036
98037 pagefault_disable();
98038 ret = __copy_from_user_inatomic(dest, from, sizeof(u32));
98039@@ -3006,6 +3011,7 @@ static void __init futex_detect_cmpxchg(void)
98040 {
98041 #ifndef CONFIG_HAVE_FUTEX_CMPXCHG
98042 u32 curval;
98043+ mm_segment_t oldfs;
98044
98045 /*
98046 * This will fail and we want it. Some arch implementations do
98047@@ -3017,8 +3023,11 @@ static void __init futex_detect_cmpxchg(void)
98048 * implementation, the non-functional ones will return
98049 * -ENOSYS.
98050 */
98051+ oldfs = get_fs();
98052+ set_fs(USER_DS);
98053 if (cmpxchg_futex_value_locked(&curval, NULL, 0, 0) == -EFAULT)
98054 futex_cmpxchg_enabled = 1;
98055+ set_fs(oldfs);
98056 #endif
98057 }
98058
98059diff --git a/kernel/futex_compat.c b/kernel/futex_compat.c
98060index 55c8c93..9ba7ad6 100644
98061--- a/kernel/futex_compat.c
98062+++ b/kernel/futex_compat.c
98063@@ -32,7 +32,7 @@ fetch_robust_entry(compat_uptr_t *uentry, struct robust_list __user **entry,
98064 return 0;
98065 }
98066
98067-static void __user *futex_uaddr(struct robust_list __user *entry,
98068+static void __user __intentional_overflow(-1) *futex_uaddr(struct robust_list __user *entry,
98069 compat_long_t futex_offset)
98070 {
98071 compat_uptr_t base = ptr_to_compat(entry);
98072diff --git a/kernel/gcov/base.c b/kernel/gcov/base.c
98073index b358a80..fc25240 100644
98074--- a/kernel/gcov/base.c
98075+++ b/kernel/gcov/base.c
98076@@ -114,11 +114,6 @@ void gcov_enable_events(void)
98077 }
98078
98079 #ifdef CONFIG_MODULES
98080-static inline int within(void *addr, void *start, unsigned long size)
98081-{
98082- return ((addr >= start) && (addr < start + size));
98083-}
98084-
98085 /* Update list and generate events when modules are unloaded. */
98086 static int gcov_module_notifier(struct notifier_block *nb, unsigned long event,
98087 void *data)
98088@@ -133,7 +128,7 @@ static int gcov_module_notifier(struct notifier_block *nb, unsigned long event,
98089
98090 /* Remove entries located in module from linked list. */
98091 while ((info = gcov_info_next(info))) {
98092- if (within(info, mod->module_core, mod->core_size)) {
98093+ if (within_module_core_rw((unsigned long)info, mod)) {
98094 gcov_info_unlink(prev, info);
98095 if (gcov_events_enabled)
98096 gcov_event(GCOV_REMOVE, info);
98097diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
98098index 886d09e..c7ff4e5 100644
98099--- a/kernel/irq/manage.c
98100+++ b/kernel/irq/manage.c
98101@@ -874,7 +874,7 @@ static int irq_thread(void *data)
98102
98103 action_ret = handler_fn(desc, action);
98104 if (action_ret == IRQ_HANDLED)
98105- atomic_inc(&desc->threads_handled);
98106+ atomic_inc_unchecked(&desc->threads_handled);
98107
98108 wake_threads_waitq(desc);
98109 }
98110diff --git a/kernel/irq/spurious.c b/kernel/irq/spurious.c
98111index e2514b0..de3dfe0 100644
98112--- a/kernel/irq/spurious.c
98113+++ b/kernel/irq/spurious.c
98114@@ -337,7 +337,7 @@ void note_interrupt(unsigned int irq, struct irq_desc *desc,
98115 * count. We just care about the count being
98116 * different than the one we saw before.
98117 */
98118- handled = atomic_read(&desc->threads_handled);
98119+ handled = atomic_read_unchecked(&desc->threads_handled);
98120 handled |= SPURIOUS_DEFERRED;
98121 if (handled != desc->threads_handled_last) {
98122 action_ret = IRQ_HANDLED;
98123diff --git a/kernel/jump_label.c b/kernel/jump_label.c
98124index 9019f15..9a3c42e 100644
98125--- a/kernel/jump_label.c
98126+++ b/kernel/jump_label.c
98127@@ -14,6 +14,7 @@
98128 #include <linux/err.h>
98129 #include <linux/static_key.h>
98130 #include <linux/jump_label_ratelimit.h>
98131+#include <linux/mm.h>
98132
98133 #ifdef HAVE_JUMP_LABEL
98134
98135@@ -51,7 +52,9 @@ jump_label_sort_entries(struct jump_entry *start, struct jump_entry *stop)
98136
98137 size = (((unsigned long)stop - (unsigned long)start)
98138 / sizeof(struct jump_entry));
98139+ pax_open_kernel();
98140 sort(start, size, sizeof(struct jump_entry), jump_label_cmp, NULL);
98141+ pax_close_kernel();
98142 }
98143
98144 static void jump_label_update(struct static_key *key, int enable);
98145@@ -363,10 +366,12 @@ static void jump_label_invalidate_module_init(struct module *mod)
98146 struct jump_entry *iter_stop = iter_start + mod->num_jump_entries;
98147 struct jump_entry *iter;
98148
98149+ pax_open_kernel();
98150 for (iter = iter_start; iter < iter_stop; iter++) {
98151 if (within_module_init(iter->code, mod))
98152 iter->code = 0;
98153 }
98154+ pax_close_kernel();
98155 }
98156
98157 static int
98158diff --git a/kernel/kallsyms.c b/kernel/kallsyms.c
98159index 5c5987f..bc502b0 100644
98160--- a/kernel/kallsyms.c
98161+++ b/kernel/kallsyms.c
98162@@ -11,6 +11,9 @@
98163 * Changed the compression method from stem compression to "table lookup"
98164 * compression (see scripts/kallsyms.c for a more complete description)
98165 */
98166+#ifdef CONFIG_GRKERNSEC_HIDESYM
98167+#define __INCLUDED_BY_HIDESYM 1
98168+#endif
98169 #include <linux/kallsyms.h>
98170 #include <linux/module.h>
98171 #include <linux/init.h>
98172@@ -54,12 +57,33 @@ extern const unsigned long kallsyms_markers[] __weak;
98173
98174 static inline int is_kernel_inittext(unsigned long addr)
98175 {
98176+ if (system_state != SYSTEM_BOOTING)
98177+ return 0;
98178+
98179 if (addr >= (unsigned long)_sinittext
98180 && addr <= (unsigned long)_einittext)
98181 return 1;
98182 return 0;
98183 }
98184
98185+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
98186+#ifdef CONFIG_MODULES
98187+static inline int is_module_text(unsigned long addr)
98188+{
98189+ if ((unsigned long)MODULES_EXEC_VADDR <= addr && addr <= (unsigned long)MODULES_EXEC_END)
98190+ return 1;
98191+
98192+ addr = ktla_ktva(addr);
98193+ return (unsigned long)MODULES_EXEC_VADDR <= addr && addr <= (unsigned long)MODULES_EXEC_END;
98194+}
98195+#else
98196+static inline int is_module_text(unsigned long addr)
98197+{
98198+ return 0;
98199+}
98200+#endif
98201+#endif
98202+
98203 static inline int is_kernel_text(unsigned long addr)
98204 {
98205 if ((addr >= (unsigned long)_stext && addr <= (unsigned long)_etext) ||
98206@@ -70,13 +94,28 @@ static inline int is_kernel_text(unsigned long addr)
98207
98208 static inline int is_kernel(unsigned long addr)
98209 {
98210+
98211+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
98212+ if (is_kernel_text(addr) || is_kernel_inittext(addr))
98213+ return 1;
98214+
98215+ if (ktla_ktva((unsigned long)_text) <= addr && addr < (unsigned long)_end)
98216+#else
98217 if (addr >= (unsigned long)_stext && addr <= (unsigned long)_end)
98218+#endif
98219+
98220 return 1;
98221 return in_gate_area_no_mm(addr);
98222 }
98223
98224 static int is_ksym_addr(unsigned long addr)
98225 {
98226+
98227+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
98228+ if (is_module_text(addr))
98229+ return 0;
98230+#endif
98231+
98232 if (all_var)
98233 return is_kernel(addr);
98234
98235@@ -481,7 +520,6 @@ static unsigned long get_ksymbol_core(struct kallsym_iter *iter)
98236
98237 static void reset_iter(struct kallsym_iter *iter, loff_t new_pos)
98238 {
98239- iter->name[0] = '\0';
98240 iter->nameoff = get_symbol_offset(new_pos);
98241 iter->pos = new_pos;
98242 }
98243@@ -529,6 +567,11 @@ static int s_show(struct seq_file *m, void *p)
98244 {
98245 struct kallsym_iter *iter = m->private;
98246
98247+#ifdef CONFIG_GRKERNSEC_HIDESYM
98248+ if (!uid_eq(current_uid(), GLOBAL_ROOT_UID))
98249+ return 0;
98250+#endif
98251+
98252 /* Some debugging symbols have no name. Ignore them. */
98253 if (!iter->name[0])
98254 return 0;
98255@@ -542,6 +585,7 @@ static int s_show(struct seq_file *m, void *p)
98256 */
98257 type = iter->exported ? toupper(iter->type) :
98258 tolower(iter->type);
98259+
98260 seq_printf(m, "%pK %c %s\t[%s]\n", (void *)iter->value,
98261 type, iter->name, iter->module_name);
98262 } else
98263diff --git a/kernel/kcmp.c b/kernel/kcmp.c
98264index 0aa69ea..a7fcafb 100644
98265--- a/kernel/kcmp.c
98266+++ b/kernel/kcmp.c
98267@@ -100,6 +100,10 @@ SYSCALL_DEFINE5(kcmp, pid_t, pid1, pid_t, pid2, int, type,
98268 struct task_struct *task1, *task2;
98269 int ret;
98270
98271+#ifdef CONFIG_GRKERNSEC
98272+ return -ENOSYS;
98273+#endif
98274+
98275 rcu_read_lock();
98276
98277 /*
98278diff --git a/kernel/kexec.c b/kernel/kexec.c
98279index 38c25b1..12b3f69 100644
98280--- a/kernel/kexec.c
98281+++ b/kernel/kexec.c
98282@@ -1348,7 +1348,8 @@ COMPAT_SYSCALL_DEFINE4(kexec_load, compat_ulong_t, entry,
98283 compat_ulong_t, flags)
98284 {
98285 struct compat_kexec_segment in;
98286- struct kexec_segment out, __user *ksegments;
98287+ struct kexec_segment out;
98288+ struct kexec_segment __user *ksegments;
98289 unsigned long i, result;
98290
98291 /* Don't allow clients that don't understand the native
98292diff --git a/kernel/kmod.c b/kernel/kmod.c
98293index 2777f40..a689506 100644
98294--- a/kernel/kmod.c
98295+++ b/kernel/kmod.c
98296@@ -68,7 +68,7 @@ static void free_modprobe_argv(struct subprocess_info *info)
98297 kfree(info->argv);
98298 }
98299
98300-static int call_modprobe(char *module_name, int wait)
98301+static int call_modprobe(char *module_name, char *module_param, int wait)
98302 {
98303 struct subprocess_info *info;
98304 static char *envp[] = {
98305@@ -78,7 +78,7 @@ static int call_modprobe(char *module_name, int wait)
98306 NULL
98307 };
98308
98309- char **argv = kmalloc(sizeof(char *[5]), GFP_KERNEL);
98310+ char **argv = kmalloc(sizeof(char *[6]), GFP_KERNEL);
98311 if (!argv)
98312 goto out;
98313
98314@@ -90,7 +90,8 @@ static int call_modprobe(char *module_name, int wait)
98315 argv[1] = "-q";
98316 argv[2] = "--";
98317 argv[3] = module_name; /* check free_modprobe_argv() */
98318- argv[4] = NULL;
98319+ argv[4] = module_param;
98320+ argv[5] = NULL;
98321
98322 info = call_usermodehelper_setup(modprobe_path, argv, envp, GFP_KERNEL,
98323 NULL, free_modprobe_argv, NULL);
98324@@ -122,9 +123,8 @@ out:
98325 * If module auto-loading support is disabled then this function
98326 * becomes a no-operation.
98327 */
98328-int __request_module(bool wait, const char *fmt, ...)
98329+static int ____request_module(bool wait, char *module_param, const char *fmt, va_list ap)
98330 {
98331- va_list args;
98332 char module_name[MODULE_NAME_LEN];
98333 unsigned int max_modprobes;
98334 int ret;
98335@@ -143,9 +143,7 @@ int __request_module(bool wait, const char *fmt, ...)
98336 if (!modprobe_path[0])
98337 return 0;
98338
98339- va_start(args, fmt);
98340- ret = vsnprintf(module_name, MODULE_NAME_LEN, fmt, args);
98341- va_end(args);
98342+ ret = vsnprintf(module_name, MODULE_NAME_LEN, fmt, ap);
98343 if (ret >= MODULE_NAME_LEN)
98344 return -ENAMETOOLONG;
98345
98346@@ -153,6 +151,20 @@ int __request_module(bool wait, const char *fmt, ...)
98347 if (ret)
98348 return ret;
98349
98350+#ifdef CONFIG_GRKERNSEC_MODHARDEN
98351+ if (uid_eq(current_uid(), GLOBAL_ROOT_UID)) {
98352+ /* hack to workaround consolekit/udisks stupidity */
98353+ read_lock(&tasklist_lock);
98354+ if (!strcmp(current->comm, "mount") &&
98355+ current->real_parent && !strncmp(current->real_parent->comm, "udisk", 5)) {
98356+ read_unlock(&tasklist_lock);
98357+ printk(KERN_ALERT "grsec: denied attempt to auto-load fs module %.64s by udisks\n", module_name);
98358+ return -EPERM;
98359+ }
98360+ read_unlock(&tasklist_lock);
98361+ }
98362+#endif
98363+
98364 /* If modprobe needs a service that is in a module, we get a recursive
98365 * loop. Limit the number of running kmod threads to max_threads/2 or
98366 * MAX_KMOD_CONCURRENT, whichever is the smaller. A cleaner method
98367@@ -181,16 +193,61 @@ int __request_module(bool wait, const char *fmt, ...)
98368
98369 trace_module_request(module_name, wait, _RET_IP_);
98370
98371- ret = call_modprobe(module_name, wait ? UMH_WAIT_PROC : UMH_WAIT_EXEC);
98372+ ret = call_modprobe(module_name, module_param, wait ? UMH_WAIT_PROC : UMH_WAIT_EXEC);
98373
98374 atomic_dec(&kmod_concurrent);
98375 return ret;
98376 }
98377+
98378+int ___request_module(bool wait, char *module_param, const char *fmt, ...)
98379+{
98380+ va_list args;
98381+ int ret;
98382+
98383+ va_start(args, fmt);
98384+ ret = ____request_module(wait, module_param, fmt, args);
98385+ va_end(args);
98386+
98387+ return ret;
98388+}
98389+
98390+int __request_module(bool wait, const char *fmt, ...)
98391+{
98392+ va_list args;
98393+ int ret;
98394+
98395+#ifdef CONFIG_GRKERNSEC_MODHARDEN
98396+ if (!uid_eq(current_uid(), GLOBAL_ROOT_UID)) {
98397+ char module_param[MODULE_NAME_LEN];
98398+
98399+ memset(module_param, 0, sizeof(module_param));
98400+
98401+ snprintf(module_param, sizeof(module_param) - 1, "grsec_modharden_normal%u_", GR_GLOBAL_UID(current_uid()));
98402+
98403+ va_start(args, fmt);
98404+ ret = ____request_module(wait, module_param, fmt, args);
98405+ va_end(args);
98406+
98407+ return ret;
98408+ }
98409+#endif
98410+
98411+ va_start(args, fmt);
98412+ ret = ____request_module(wait, NULL, fmt, args);
98413+ va_end(args);
98414+
98415+ return ret;
98416+}
98417+
98418 EXPORT_SYMBOL(__request_module);
98419 #endif /* CONFIG_MODULES */
98420
98421 static void call_usermodehelper_freeinfo(struct subprocess_info *info)
98422 {
98423+#ifdef CONFIG_GRKERNSEC
98424+ kfree(info->path);
98425+ info->path = info->origpath;
98426+#endif
98427 if (info->cleanup)
98428 (*info->cleanup)(info);
98429 kfree(info);
98430@@ -232,6 +289,21 @@ static int ____call_usermodehelper(void *data)
98431 */
98432 set_user_nice(current, 0);
98433
98434+#ifdef CONFIG_GRKERNSEC
98435+ /* this is race-free as far as userland is concerned as we copied
98436+ out the path to be used prior to this point and are now operating
98437+ on that copy
98438+ */
98439+ if ((strncmp(sub_info->path, "/sbin/", 6) && strncmp(sub_info->path, "/usr/lib/", 9) &&
98440+ strncmp(sub_info->path, "/lib/", 5) && strncmp(sub_info->path, "/lib64/", 7) &&
98441+ strncmp(sub_info->path, "/usr/libexec/", 13) && strncmp(sub_info->path, "/usr/bin/", 9) &&
98442+ strcmp(sub_info->path, "/usr/share/apport/apport")) || strstr(sub_info->path, "..")) {
98443+ printk(KERN_ALERT "grsec: denied exec of usermode helper binary %.950s located outside of permitted system paths\n", sub_info->path);
98444+ retval = -EPERM;
98445+ goto out;
98446+ }
98447+#endif
98448+
98449 retval = -ENOMEM;
98450 new = prepare_kernel_cred(current);
98451 if (!new)
98452@@ -254,8 +326,8 @@ static int ____call_usermodehelper(void *data)
98453 commit_creds(new);
98454
98455 retval = do_execve(getname_kernel(sub_info->path),
98456- (const char __user *const __user *)sub_info->argv,
98457- (const char __user *const __user *)sub_info->envp);
98458+ (const char __user *const __force_user *)sub_info->argv,
98459+ (const char __user *const __force_user *)sub_info->envp);
98460 out:
98461 sub_info->retval = retval;
98462 /* wait_for_helper() will call umh_complete if UHM_WAIT_PROC. */
98463@@ -288,7 +360,7 @@ static int wait_for_helper(void *data)
98464 *
98465 * Thus the __user pointer cast is valid here.
98466 */
98467- sys_wait4(pid, (int __user *)&ret, 0, NULL);
98468+ sys_wait4(pid, (int __force_user *)&ret, 0, NULL);
98469
98470 /*
98471 * If ret is 0, either ____call_usermodehelper failed and the
98472@@ -510,7 +582,12 @@ struct subprocess_info *call_usermodehelper_setup(char *path, char **argv,
98473 goto out;
98474
98475 INIT_WORK(&sub_info->work, __call_usermodehelper);
98476+#ifdef CONFIG_GRKERNSEC
98477+ sub_info->origpath = path;
98478+ sub_info->path = kstrdup(path, gfp_mask);
98479+#else
98480 sub_info->path = path;
98481+#endif
98482 sub_info->argv = argv;
98483 sub_info->envp = envp;
98484
98485@@ -612,7 +689,7 @@ EXPORT_SYMBOL(call_usermodehelper);
98486 static int proc_cap_handler(struct ctl_table *table, int write,
98487 void __user *buffer, size_t *lenp, loff_t *ppos)
98488 {
98489- struct ctl_table t;
98490+ ctl_table_no_const t;
98491 unsigned long cap_array[_KERNEL_CAPABILITY_U32S];
98492 kernel_cap_t new_cap;
98493 int err, i;
98494diff --git a/kernel/kprobes.c b/kernel/kprobes.c
98495index c90e417..e6c515d 100644
98496--- a/kernel/kprobes.c
98497+++ b/kernel/kprobes.c
98498@@ -31,6 +31,9 @@
98499 * <jkenisto@us.ibm.com> and Prasanna S Panchamukhi
98500 * <prasanna@in.ibm.com> added function-return probes.
98501 */
98502+#ifdef CONFIG_GRKERNSEC_HIDESYM
98503+#define __INCLUDED_BY_HIDESYM 1
98504+#endif
98505 #include <linux/kprobes.h>
98506 #include <linux/hash.h>
98507 #include <linux/init.h>
98508@@ -122,12 +125,12 @@ enum kprobe_slot_state {
98509
98510 static void *alloc_insn_page(void)
98511 {
98512- return module_alloc(PAGE_SIZE);
98513+ return module_alloc_exec(PAGE_SIZE);
98514 }
98515
98516 static void free_insn_page(void *page)
98517 {
98518- module_memfree(page);
98519+ module_memfree_exec(page);
98520 }
98521
98522 struct kprobe_insn_cache kprobe_insn_slots = {
98523@@ -2198,11 +2201,11 @@ static void report_probe(struct seq_file *pi, struct kprobe *p,
98524 kprobe_type = "k";
98525
98526 if (sym)
98527- seq_printf(pi, "%p %s %s+0x%x %s ",
98528+ seq_printf(pi, "%pK %s %s+0x%x %s ",
98529 p->addr, kprobe_type, sym, offset,
98530 (modname ? modname : " "));
98531 else
98532- seq_printf(pi, "%p %s %p ",
98533+ seq_printf(pi, "%pK %s %pK ",
98534 p->addr, kprobe_type, p->addr);
98535
98536 if (!pp)
98537diff --git a/kernel/ksysfs.c b/kernel/ksysfs.c
98538index 6683cce..daf8999 100644
98539--- a/kernel/ksysfs.c
98540+++ b/kernel/ksysfs.c
98541@@ -50,6 +50,8 @@ static ssize_t uevent_helper_store(struct kobject *kobj,
98542 {
98543 if (count+1 > UEVENT_HELPER_PATH_LEN)
98544 return -ENOENT;
98545+ if (!capable(CAP_SYS_ADMIN))
98546+ return -EPERM;
98547 memcpy(uevent_helper, buf, count);
98548 uevent_helper[count] = '\0';
98549 if (count && uevent_helper[count-1] == '\n')
98550@@ -176,7 +178,7 @@ static ssize_t notes_read(struct file *filp, struct kobject *kobj,
98551 return count;
98552 }
98553
98554-static struct bin_attribute notes_attr = {
98555+static bin_attribute_no_const notes_attr __read_only = {
98556 .attr = {
98557 .name = "notes",
98558 .mode = S_IRUGO,
98559diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c
98560index ba77ab5..d6a3e20 100644
98561--- a/kernel/locking/lockdep.c
98562+++ b/kernel/locking/lockdep.c
98563@@ -599,6 +599,10 @@ static int static_obj(void *obj)
98564 end = (unsigned long) &_end,
98565 addr = (unsigned long) obj;
98566
98567+#ifdef CONFIG_PAX_KERNEXEC
98568+ start = ktla_ktva(start);
98569+#endif
98570+
98571 /*
98572 * static variable?
98573 */
98574@@ -743,6 +747,7 @@ register_lock_class(struct lockdep_map *lock, unsigned int subclass, int force)
98575 if (!static_obj(lock->key)) {
98576 debug_locks_off();
98577 printk("INFO: trying to register non-static key.\n");
98578+ printk("lock:%pS key:%pS.\n", lock, lock->key);
98579 printk("the code is fine but needs lockdep annotation.\n");
98580 printk("turning off the locking correctness validator.\n");
98581 dump_stack();
98582@@ -3088,7 +3093,7 @@ static int __lock_acquire(struct lockdep_map *lock, unsigned int subclass,
98583 if (!class)
98584 return 0;
98585 }
98586- atomic_inc((atomic_t *)&class->ops);
98587+ atomic_long_inc_unchecked((atomic_long_unchecked_t *)&class->ops);
98588 if (very_verbose(class)) {
98589 printk("\nacquire class [%p] %s", class->key, class->name);
98590 if (class->name_version > 1)
98591diff --git a/kernel/locking/lockdep_proc.c b/kernel/locking/lockdep_proc.c
98592index ef43ac4..2720dfa 100644
98593--- a/kernel/locking/lockdep_proc.c
98594+++ b/kernel/locking/lockdep_proc.c
98595@@ -65,7 +65,7 @@ static int l_show(struct seq_file *m, void *v)
98596 return 0;
98597 }
98598
98599- seq_printf(m, "%p", class->key);
98600+ seq_printf(m, "%pK", class->key);
98601 #ifdef CONFIG_DEBUG_LOCKDEP
98602 seq_printf(m, " OPS:%8ld", class->ops);
98603 #endif
98604@@ -83,7 +83,7 @@ static int l_show(struct seq_file *m, void *v)
98605
98606 list_for_each_entry(entry, &class->locks_after, entry) {
98607 if (entry->distance == 1) {
98608- seq_printf(m, " -> [%p] ", entry->class->key);
98609+ seq_printf(m, " -> [%pK] ", entry->class->key);
98610 print_name(m, entry->class);
98611 seq_puts(m, "\n");
98612 }
98613@@ -152,7 +152,7 @@ static int lc_show(struct seq_file *m, void *v)
98614 if (!class->key)
98615 continue;
98616
98617- seq_printf(m, "[%p] ", class->key);
98618+ seq_printf(m, "[%pK] ", class->key);
98619 print_name(m, class);
98620 seq_puts(m, "\n");
98621 }
98622@@ -496,7 +496,7 @@ static void seq_stats(struct seq_file *m, struct lock_stat_data *data)
98623 if (!i)
98624 seq_line(m, '-', 40-namelen, namelen);
98625
98626- snprintf(ip, sizeof(ip), "[<%p>]",
98627+ snprintf(ip, sizeof(ip), "[<%pK>]",
98628 (void *)class->contention_point[i]);
98629 seq_printf(m, "%40s %14lu %29s %pS\n",
98630 name, stats->contention_point[i],
98631@@ -511,7 +511,7 @@ static void seq_stats(struct seq_file *m, struct lock_stat_data *data)
98632 if (!i)
98633 seq_line(m, '-', 40-namelen, namelen);
98634
98635- snprintf(ip, sizeof(ip), "[<%p>]",
98636+ snprintf(ip, sizeof(ip), "[<%pK>]",
98637 (void *)class->contending_point[i]);
98638 seq_printf(m, "%40s %14lu %29s %pS\n",
98639 name, stats->contending_point[i],
98640diff --git a/kernel/locking/mcs_spinlock.h b/kernel/locking/mcs_spinlock.h
98641index d1fe2ba..180cd65e 100644
98642--- a/kernel/locking/mcs_spinlock.h
98643+++ b/kernel/locking/mcs_spinlock.h
98644@@ -78,7 +78,7 @@ void mcs_spin_lock(struct mcs_spinlock **lock, struct mcs_spinlock *node)
98645 */
98646 return;
98647 }
98648- ACCESS_ONCE(prev->next) = node;
98649+ ACCESS_ONCE_RW(prev->next) = node;
98650
98651 /* Wait until the lock holder passes the lock down. */
98652 arch_mcs_spin_lock_contended(&node->locked);
98653diff --git a/kernel/locking/mutex-debug.c b/kernel/locking/mutex-debug.c
98654index 3ef3736..9c951fa 100644
98655--- a/kernel/locking/mutex-debug.c
98656+++ b/kernel/locking/mutex-debug.c
98657@@ -49,21 +49,21 @@ void debug_mutex_free_waiter(struct mutex_waiter *waiter)
98658 }
98659
98660 void debug_mutex_add_waiter(struct mutex *lock, struct mutex_waiter *waiter,
98661- struct thread_info *ti)
98662+ struct task_struct *task)
98663 {
98664 SMP_DEBUG_LOCKS_WARN_ON(!spin_is_locked(&lock->wait_lock));
98665
98666 /* Mark the current thread as blocked on the lock: */
98667- ti->task->blocked_on = waiter;
98668+ task->blocked_on = waiter;
98669 }
98670
98671 void mutex_remove_waiter(struct mutex *lock, struct mutex_waiter *waiter,
98672- struct thread_info *ti)
98673+ struct task_struct *task)
98674 {
98675 DEBUG_LOCKS_WARN_ON(list_empty(&waiter->list));
98676- DEBUG_LOCKS_WARN_ON(waiter->task != ti->task);
98677- DEBUG_LOCKS_WARN_ON(ti->task->blocked_on != waiter);
98678- ti->task->blocked_on = NULL;
98679+ DEBUG_LOCKS_WARN_ON(waiter->task != task);
98680+ DEBUG_LOCKS_WARN_ON(task->blocked_on != waiter);
98681+ task->blocked_on = NULL;
98682
98683 list_del_init(&waiter->list);
98684 waiter->task = NULL;
98685diff --git a/kernel/locking/mutex-debug.h b/kernel/locking/mutex-debug.h
98686index 0799fd3..d06ae3b 100644
98687--- a/kernel/locking/mutex-debug.h
98688+++ b/kernel/locking/mutex-debug.h
98689@@ -20,9 +20,9 @@ extern void debug_mutex_wake_waiter(struct mutex *lock,
98690 extern void debug_mutex_free_waiter(struct mutex_waiter *waiter);
98691 extern void debug_mutex_add_waiter(struct mutex *lock,
98692 struct mutex_waiter *waiter,
98693- struct thread_info *ti);
98694+ struct task_struct *task);
98695 extern void mutex_remove_waiter(struct mutex *lock, struct mutex_waiter *waiter,
98696- struct thread_info *ti);
98697+ struct task_struct *task);
98698 extern void debug_mutex_unlock(struct mutex *lock);
98699 extern void debug_mutex_init(struct mutex *lock, const char *name,
98700 struct lock_class_key *key);
98701diff --git a/kernel/locking/mutex.c b/kernel/locking/mutex.c
98702index 94674e5..de4966f 100644
98703--- a/kernel/locking/mutex.c
98704+++ b/kernel/locking/mutex.c
98705@@ -542,7 +542,7 @@ __mutex_lock_common(struct mutex *lock, long state, unsigned int subclass,
98706 goto skip_wait;
98707
98708 debug_mutex_lock_common(lock, &waiter);
98709- debug_mutex_add_waiter(lock, &waiter, task_thread_info(task));
98710+ debug_mutex_add_waiter(lock, &waiter, task);
98711
98712 /* add waiting tasks to the end of the waitqueue (FIFO): */
98713 list_add_tail(&waiter.list, &lock->wait_list);
98714@@ -589,7 +589,7 @@ __mutex_lock_common(struct mutex *lock, long state, unsigned int subclass,
98715 }
98716 __set_task_state(task, TASK_RUNNING);
98717
98718- mutex_remove_waiter(lock, &waiter, current_thread_info());
98719+ mutex_remove_waiter(lock, &waiter, task);
98720 /* set it to 0 if there are no waiters left: */
98721 if (likely(list_empty(&lock->wait_list)))
98722 atomic_set(&lock->count, 0);
98723@@ -610,7 +610,7 @@ skip_wait:
98724 return 0;
98725
98726 err:
98727- mutex_remove_waiter(lock, &waiter, task_thread_info(task));
98728+ mutex_remove_waiter(lock, &waiter, task);
98729 spin_unlock_mutex(&lock->wait_lock, flags);
98730 debug_mutex_free_waiter(&waiter);
98731 mutex_release(&lock->dep_map, 1, ip);
98732diff --git a/kernel/locking/osq_lock.c b/kernel/locking/osq_lock.c
98733index c112d00..1946ad9 100644
98734--- a/kernel/locking/osq_lock.c
98735+++ b/kernel/locking/osq_lock.c
98736@@ -98,7 +98,7 @@ bool osq_lock(struct optimistic_spin_queue *lock)
98737
98738 prev = decode_cpu(old);
98739 node->prev = prev;
98740- ACCESS_ONCE(prev->next) = node;
98741+ ACCESS_ONCE_RW(prev->next) = node;
98742
98743 /*
98744 * Normally @prev is untouchable after the above store; because at that
98745@@ -170,8 +170,8 @@ unqueue:
98746 * it will wait in Step-A.
98747 */
98748
98749- ACCESS_ONCE(next->prev) = prev;
98750- ACCESS_ONCE(prev->next) = next;
98751+ ACCESS_ONCE_RW(next->prev) = prev;
98752+ ACCESS_ONCE_RW(prev->next) = next;
98753
98754 return false;
98755 }
98756@@ -193,11 +193,11 @@ void osq_unlock(struct optimistic_spin_queue *lock)
98757 node = this_cpu_ptr(&osq_node);
98758 next = xchg(&node->next, NULL);
98759 if (next) {
98760- ACCESS_ONCE(next->locked) = 1;
98761+ ACCESS_ONCE_RW(next->locked) = 1;
98762 return;
98763 }
98764
98765 next = osq_wait_next(lock, node, NULL);
98766 if (next)
98767- ACCESS_ONCE(next->locked) = 1;
98768+ ACCESS_ONCE_RW(next->locked) = 1;
98769 }
98770diff --git a/kernel/locking/rtmutex-tester.c b/kernel/locking/rtmutex-tester.c
98771index 1d96dd0..994ff19 100644
98772--- a/kernel/locking/rtmutex-tester.c
98773+++ b/kernel/locking/rtmutex-tester.c
98774@@ -22,7 +22,7 @@
98775 #define MAX_RT_TEST_MUTEXES 8
98776
98777 static spinlock_t rttest_lock;
98778-static atomic_t rttest_event;
98779+static atomic_unchecked_t rttest_event;
98780
98781 struct test_thread_data {
98782 int opcode;
98783@@ -63,7 +63,7 @@ static int handle_op(struct test_thread_data *td, int lockwakeup)
98784
98785 case RTTEST_LOCKCONT:
98786 td->mutexes[td->opdata] = 1;
98787- td->event = atomic_add_return(1, &rttest_event);
98788+ td->event = atomic_add_return_unchecked(1, &rttest_event);
98789 return 0;
98790
98791 case RTTEST_RESET:
98792@@ -76,7 +76,7 @@ static int handle_op(struct test_thread_data *td, int lockwakeup)
98793 return 0;
98794
98795 case RTTEST_RESETEVENT:
98796- atomic_set(&rttest_event, 0);
98797+ atomic_set_unchecked(&rttest_event, 0);
98798 return 0;
98799
98800 default:
98801@@ -93,9 +93,9 @@ static int handle_op(struct test_thread_data *td, int lockwakeup)
98802 return ret;
98803
98804 td->mutexes[id] = 1;
98805- td->event = atomic_add_return(1, &rttest_event);
98806+ td->event = atomic_add_return_unchecked(1, &rttest_event);
98807 rt_mutex_lock(&mutexes[id]);
98808- td->event = atomic_add_return(1, &rttest_event);
98809+ td->event = atomic_add_return_unchecked(1, &rttest_event);
98810 td->mutexes[id] = 4;
98811 return 0;
98812
98813@@ -106,9 +106,9 @@ static int handle_op(struct test_thread_data *td, int lockwakeup)
98814 return ret;
98815
98816 td->mutexes[id] = 1;
98817- td->event = atomic_add_return(1, &rttest_event);
98818+ td->event = atomic_add_return_unchecked(1, &rttest_event);
98819 ret = rt_mutex_lock_interruptible(&mutexes[id], 0);
98820- td->event = atomic_add_return(1, &rttest_event);
98821+ td->event = atomic_add_return_unchecked(1, &rttest_event);
98822 td->mutexes[id] = ret ? 0 : 4;
98823 return ret ? -EINTR : 0;
98824
98825@@ -117,9 +117,9 @@ static int handle_op(struct test_thread_data *td, int lockwakeup)
98826 if (id < 0 || id >= MAX_RT_TEST_MUTEXES || td->mutexes[id] != 4)
98827 return ret;
98828
98829- td->event = atomic_add_return(1, &rttest_event);
98830+ td->event = atomic_add_return_unchecked(1, &rttest_event);
98831 rt_mutex_unlock(&mutexes[id]);
98832- td->event = atomic_add_return(1, &rttest_event);
98833+ td->event = atomic_add_return_unchecked(1, &rttest_event);
98834 td->mutexes[id] = 0;
98835 return 0;
98836
98837@@ -166,7 +166,7 @@ void schedule_rt_mutex_test(struct rt_mutex *mutex)
98838 break;
98839
98840 td->mutexes[dat] = 2;
98841- td->event = atomic_add_return(1, &rttest_event);
98842+ td->event = atomic_add_return_unchecked(1, &rttest_event);
98843 break;
98844
98845 default:
98846@@ -186,7 +186,7 @@ void schedule_rt_mutex_test(struct rt_mutex *mutex)
98847 return;
98848
98849 td->mutexes[dat] = 3;
98850- td->event = atomic_add_return(1, &rttest_event);
98851+ td->event = atomic_add_return_unchecked(1, &rttest_event);
98852 break;
98853
98854 case RTTEST_LOCKNOWAIT:
98855@@ -198,7 +198,7 @@ void schedule_rt_mutex_test(struct rt_mutex *mutex)
98856 return;
98857
98858 td->mutexes[dat] = 1;
98859- td->event = atomic_add_return(1, &rttest_event);
98860+ td->event = atomic_add_return_unchecked(1, &rttest_event);
98861 return;
98862
98863 default:
98864diff --git a/kernel/module.c b/kernel/module.c
98865index 538794c..76d7957 100644
98866--- a/kernel/module.c
98867+++ b/kernel/module.c
98868@@ -59,6 +59,7 @@
98869 #include <linux/jump_label.h>
98870 #include <linux/pfn.h>
98871 #include <linux/bsearch.h>
98872+#include <linux/grsecurity.h>
98873 #include <uapi/linux/module.h>
98874 #include "module-internal.h"
98875
98876@@ -155,7 +156,8 @@ static BLOCKING_NOTIFIER_HEAD(module_notify_list);
98877
98878 /* Bounds of module allocation, for speeding __module_address.
98879 * Protected by module_mutex. */
98880-static unsigned long module_addr_min = -1UL, module_addr_max = 0;
98881+static unsigned long module_addr_min_rw = -1UL, module_addr_max_rw = 0;
98882+static unsigned long module_addr_min_rx = -1UL, module_addr_max_rx = 0;
98883
98884 int register_module_notifier(struct notifier_block *nb)
98885 {
98886@@ -322,7 +324,7 @@ bool each_symbol_section(bool (*fn)(const struct symsearch *arr,
98887 return true;
98888
98889 list_for_each_entry_rcu(mod, &modules, list) {
98890- struct symsearch arr[] = {
98891+ struct symsearch modarr[] = {
98892 { mod->syms, mod->syms + mod->num_syms, mod->crcs,
98893 NOT_GPL_ONLY, false },
98894 { mod->gpl_syms, mod->gpl_syms + mod->num_gpl_syms,
98895@@ -347,7 +349,7 @@ bool each_symbol_section(bool (*fn)(const struct symsearch *arr,
98896 if (mod->state == MODULE_STATE_UNFORMED)
98897 continue;
98898
98899- if (each_symbol_in_section(arr, ARRAY_SIZE(arr), mod, fn, data))
98900+ if (each_symbol_in_section(modarr, ARRAY_SIZE(modarr), mod, fn, data))
98901 return true;
98902 }
98903 return false;
98904@@ -487,7 +489,7 @@ static int percpu_modalloc(struct module *mod, struct load_info *info)
98905 if (!pcpusec->sh_size)
98906 return 0;
98907
98908- if (align > PAGE_SIZE) {
98909+ if (align-1 >= PAGE_SIZE) {
98910 pr_warn("%s: per-cpu alignment %li > %li\n",
98911 mod->name, align, PAGE_SIZE);
98912 align = PAGE_SIZE;
98913@@ -1053,7 +1055,7 @@ struct module_attribute module_uevent =
98914 static ssize_t show_coresize(struct module_attribute *mattr,
98915 struct module_kobject *mk, char *buffer)
98916 {
98917- return sprintf(buffer, "%u\n", mk->mod->core_size);
98918+ return sprintf(buffer, "%u\n", mk->mod->core_size_rx + mk->mod->core_size_rw);
98919 }
98920
98921 static struct module_attribute modinfo_coresize =
98922@@ -1062,7 +1064,7 @@ static struct module_attribute modinfo_coresize =
98923 static ssize_t show_initsize(struct module_attribute *mattr,
98924 struct module_kobject *mk, char *buffer)
98925 {
98926- return sprintf(buffer, "%u\n", mk->mod->init_size);
98927+ return sprintf(buffer, "%u\n", mk->mod->init_size_rx + mk->mod->init_size_rw);
98928 }
98929
98930 static struct module_attribute modinfo_initsize =
98931@@ -1154,12 +1156,29 @@ static int check_version(Elf_Shdr *sechdrs,
98932 goto bad_version;
98933 }
98934
98935+#ifdef CONFIG_GRKERNSEC_RANDSTRUCT
98936+ /*
98937+ * avoid potentially printing jibberish on attempted load
98938+ * of a module randomized with a different seed
98939+ */
98940+ pr_warn("no symbol version for %s\n", symname);
98941+#else
98942 pr_warn("%s: no symbol version for %s\n", mod->name, symname);
98943+#endif
98944 return 0;
98945
98946 bad_version:
98947+#ifdef CONFIG_GRKERNSEC_RANDSTRUCT
98948+ /*
98949+ * avoid potentially printing jibberish on attempted load
98950+ * of a module randomized with a different seed
98951+ */
98952+ pr_warn("attempted module disagrees about version of symbol %s\n",
98953+ symname);
98954+#else
98955 pr_warn("%s: disagrees about version of symbol %s\n",
98956 mod->name, symname);
98957+#endif
98958 return 0;
98959 }
98960
98961@@ -1281,7 +1300,7 @@ resolve_symbol_wait(struct module *mod,
98962 */
98963 #ifdef CONFIG_SYSFS
98964
98965-#ifdef CONFIG_KALLSYMS
98966+#if defined(CONFIG_KALLSYMS) && !defined(CONFIG_GRKERNSEC_HIDESYM)
98967 static inline bool sect_empty(const Elf_Shdr *sect)
98968 {
98969 return !(sect->sh_flags & SHF_ALLOC) || sect->sh_size == 0;
98970@@ -1419,7 +1438,7 @@ static void add_notes_attrs(struct module *mod, const struct load_info *info)
98971 {
98972 unsigned int notes, loaded, i;
98973 struct module_notes_attrs *notes_attrs;
98974- struct bin_attribute *nattr;
98975+ bin_attribute_no_const *nattr;
98976
98977 /* failed to create section attributes, so can't create notes */
98978 if (!mod->sect_attrs)
98979@@ -1531,7 +1550,7 @@ static void del_usage_links(struct module *mod)
98980 static int module_add_modinfo_attrs(struct module *mod)
98981 {
98982 struct module_attribute *attr;
98983- struct module_attribute *temp_attr;
98984+ module_attribute_no_const *temp_attr;
98985 int error = 0;
98986 int i;
98987
98988@@ -1741,21 +1760,21 @@ static void set_section_ro_nx(void *base,
98989
98990 static void unset_module_core_ro_nx(struct module *mod)
98991 {
98992- set_page_attributes(mod->module_core + mod->core_text_size,
98993- mod->module_core + mod->core_size,
98994+ set_page_attributes(mod->module_core_rw,
98995+ mod->module_core_rw + mod->core_size_rw,
98996 set_memory_x);
98997- set_page_attributes(mod->module_core,
98998- mod->module_core + mod->core_ro_size,
98999+ set_page_attributes(mod->module_core_rx,
99000+ mod->module_core_rx + mod->core_size_rx,
99001 set_memory_rw);
99002 }
99003
99004 static void unset_module_init_ro_nx(struct module *mod)
99005 {
99006- set_page_attributes(mod->module_init + mod->init_text_size,
99007- mod->module_init + mod->init_size,
99008+ set_page_attributes(mod->module_init_rw,
99009+ mod->module_init_rw + mod->init_size_rw,
99010 set_memory_x);
99011- set_page_attributes(mod->module_init,
99012- mod->module_init + mod->init_ro_size,
99013+ set_page_attributes(mod->module_init_rx,
99014+ mod->module_init_rx + mod->init_size_rx,
99015 set_memory_rw);
99016 }
99017
99018@@ -1768,14 +1787,14 @@ void set_all_modules_text_rw(void)
99019 list_for_each_entry_rcu(mod, &modules, list) {
99020 if (mod->state == MODULE_STATE_UNFORMED)
99021 continue;
99022- if ((mod->module_core) && (mod->core_text_size)) {
99023- set_page_attributes(mod->module_core,
99024- mod->module_core + mod->core_text_size,
99025+ if ((mod->module_core_rx) && (mod->core_size_rx)) {
99026+ set_page_attributes(mod->module_core_rx,
99027+ mod->module_core_rx + mod->core_size_rx,
99028 set_memory_rw);
99029 }
99030- if ((mod->module_init) && (mod->init_text_size)) {
99031- set_page_attributes(mod->module_init,
99032- mod->module_init + mod->init_text_size,
99033+ if ((mod->module_init_rx) && (mod->init_size_rx)) {
99034+ set_page_attributes(mod->module_init_rx,
99035+ mod->module_init_rx + mod->init_size_rx,
99036 set_memory_rw);
99037 }
99038 }
99039@@ -1791,14 +1810,14 @@ void set_all_modules_text_ro(void)
99040 list_for_each_entry_rcu(mod, &modules, list) {
99041 if (mod->state == MODULE_STATE_UNFORMED)
99042 continue;
99043- if ((mod->module_core) && (mod->core_text_size)) {
99044- set_page_attributes(mod->module_core,
99045- mod->module_core + mod->core_text_size,
99046+ if ((mod->module_core_rx) && (mod->core_size_rx)) {
99047+ set_page_attributes(mod->module_core_rx,
99048+ mod->module_core_rx + mod->core_size_rx,
99049 set_memory_ro);
99050 }
99051- if ((mod->module_init) && (mod->init_text_size)) {
99052- set_page_attributes(mod->module_init,
99053- mod->module_init + mod->init_text_size,
99054+ if ((mod->module_init_rx) && (mod->init_size_rx)) {
99055+ set_page_attributes(mod->module_init_rx,
99056+ mod->module_init_rx + mod->init_size_rx,
99057 set_memory_ro);
99058 }
99059 }
99060@@ -1807,7 +1826,15 @@ void set_all_modules_text_ro(void)
99061 #else
99062 static inline void set_section_ro_nx(void *base, unsigned long text_size, unsigned long ro_size, unsigned long total_size) { }
99063 static void unset_module_core_ro_nx(struct module *mod) { }
99064-static void unset_module_init_ro_nx(struct module *mod) { }
99065+static void unset_module_init_ro_nx(struct module *mod)
99066+{
99067+
99068+#ifdef CONFIG_PAX_KERNEXEC
99069+ set_memory_nx((unsigned long)mod->module_init_rx, PFN_UP(mod->init_size_rx));
99070+ set_memory_rw((unsigned long)mod->module_init_rx, PFN_UP(mod->init_size_rx));
99071+#endif
99072+
99073+}
99074 #endif
99075
99076 void __weak module_memfree(void *module_region)
99077@@ -1861,16 +1888,19 @@ static void free_module(struct module *mod)
99078 /* This may be NULL, but that's OK */
99079 unset_module_init_ro_nx(mod);
99080 module_arch_freeing_init(mod);
99081- module_memfree(mod->module_init);
99082+ module_memfree(mod->module_init_rw);
99083+ module_memfree_exec(mod->module_init_rx);
99084 kfree(mod->args);
99085 percpu_modfree(mod);
99086
99087 /* Free lock-classes; relies on the preceding sync_rcu(). */
99088- lockdep_free_key_range(mod->module_core, mod->core_size);
99089+ lockdep_free_key_range(mod->module_core_rx, mod->core_size_rx);
99090+ lockdep_free_key_range(mod->module_core_rw, mod->core_size_rw);
99091
99092 /* Finally, free the core (containing the module structure) */
99093 unset_module_core_ro_nx(mod);
99094- module_memfree(mod->module_core);
99095+ module_memfree_exec(mod->module_core_rx);
99096+ module_memfree(mod->module_core_rw);
99097
99098 #ifdef CONFIG_MPU
99099 update_protections(current->mm);
99100@@ -1939,9 +1969,31 @@ static int simplify_symbols(struct module *mod, const struct load_info *info)
99101 int ret = 0;
99102 const struct kernel_symbol *ksym;
99103
99104+#ifdef CONFIG_GRKERNSEC_MODHARDEN
99105+ int is_fs_load = 0;
99106+ int register_filesystem_found = 0;
99107+ char *p;
99108+
99109+ p = strstr(mod->args, "grsec_modharden_fs");
99110+ if (p) {
99111+ char *endptr = p + sizeof("grsec_modharden_fs") - 1;
99112+ /* copy \0 as well */
99113+ memmove(p, endptr, strlen(mod->args) - (unsigned int)(endptr - mod->args) + 1);
99114+ is_fs_load = 1;
99115+ }
99116+#endif
99117+
99118 for (i = 1; i < symsec->sh_size / sizeof(Elf_Sym); i++) {
99119 const char *name = info->strtab + sym[i].st_name;
99120
99121+#ifdef CONFIG_GRKERNSEC_MODHARDEN
99122+ /* it's a real shame this will never get ripped and copied
99123+ upstream! ;(
99124+ */
99125+ if (is_fs_load && !strcmp(name, "register_filesystem"))
99126+ register_filesystem_found = 1;
99127+#endif
99128+
99129 switch (sym[i].st_shndx) {
99130 case SHN_COMMON:
99131 /* Ignore common symbols */
99132@@ -1966,7 +2018,9 @@ static int simplify_symbols(struct module *mod, const struct load_info *info)
99133 ksym = resolve_symbol_wait(mod, info, name);
99134 /* Ok if resolved. */
99135 if (ksym && !IS_ERR(ksym)) {
99136+ pax_open_kernel();
99137 sym[i].st_value = ksym->value;
99138+ pax_close_kernel();
99139 break;
99140 }
99141
99142@@ -1985,11 +2039,20 @@ static int simplify_symbols(struct module *mod, const struct load_info *info)
99143 secbase = (unsigned long)mod_percpu(mod);
99144 else
99145 secbase = info->sechdrs[sym[i].st_shndx].sh_addr;
99146+ pax_open_kernel();
99147 sym[i].st_value += secbase;
99148+ pax_close_kernel();
99149 break;
99150 }
99151 }
99152
99153+#ifdef CONFIG_GRKERNSEC_MODHARDEN
99154+ if (is_fs_load && !register_filesystem_found) {
99155+ printk(KERN_ALERT "grsec: Denied attempt to load non-fs module %.64s through mount\n", mod->name);
99156+ ret = -EPERM;
99157+ }
99158+#endif
99159+
99160 return ret;
99161 }
99162
99163@@ -2073,22 +2136,12 @@ static void layout_sections(struct module *mod, struct load_info *info)
99164 || s->sh_entsize != ~0UL
99165 || strstarts(sname, ".init"))
99166 continue;
99167- s->sh_entsize = get_offset(mod, &mod->core_size, s, i);
99168+ if ((s->sh_flags & SHF_WRITE) || !(s->sh_flags & SHF_ALLOC))
99169+ s->sh_entsize = get_offset(mod, &mod->core_size_rw, s, i);
99170+ else
99171+ s->sh_entsize = get_offset(mod, &mod->core_size_rx, s, i);
99172 pr_debug("\t%s\n", sname);
99173 }
99174- switch (m) {
99175- case 0: /* executable */
99176- mod->core_size = debug_align(mod->core_size);
99177- mod->core_text_size = mod->core_size;
99178- break;
99179- case 1: /* RO: text and ro-data */
99180- mod->core_size = debug_align(mod->core_size);
99181- mod->core_ro_size = mod->core_size;
99182- break;
99183- case 3: /* whole core */
99184- mod->core_size = debug_align(mod->core_size);
99185- break;
99186- }
99187 }
99188
99189 pr_debug("Init section allocation order:\n");
99190@@ -2102,23 +2155,13 @@ static void layout_sections(struct module *mod, struct load_info *info)
99191 || s->sh_entsize != ~0UL
99192 || !strstarts(sname, ".init"))
99193 continue;
99194- s->sh_entsize = (get_offset(mod, &mod->init_size, s, i)
99195- | INIT_OFFSET_MASK);
99196+ if ((s->sh_flags & SHF_WRITE) || !(s->sh_flags & SHF_ALLOC))
99197+ s->sh_entsize = get_offset(mod, &mod->init_size_rw, s, i);
99198+ else
99199+ s->sh_entsize = get_offset(mod, &mod->init_size_rx, s, i);
99200+ s->sh_entsize |= INIT_OFFSET_MASK;
99201 pr_debug("\t%s\n", sname);
99202 }
99203- switch (m) {
99204- case 0: /* executable */
99205- mod->init_size = debug_align(mod->init_size);
99206- mod->init_text_size = mod->init_size;
99207- break;
99208- case 1: /* RO: text and ro-data */
99209- mod->init_size = debug_align(mod->init_size);
99210- mod->init_ro_size = mod->init_size;
99211- break;
99212- case 3: /* whole init */
99213- mod->init_size = debug_align(mod->init_size);
99214- break;
99215- }
99216 }
99217 }
99218
99219@@ -2291,7 +2334,7 @@ static void layout_symtab(struct module *mod, struct load_info *info)
99220
99221 /* Put symbol section at end of init part of module. */
99222 symsect->sh_flags |= SHF_ALLOC;
99223- symsect->sh_entsize = get_offset(mod, &mod->init_size, symsect,
99224+ symsect->sh_entsize = get_offset(mod, &mod->init_size_rx, symsect,
99225 info->index.sym) | INIT_OFFSET_MASK;
99226 pr_debug("\t%s\n", info->secstrings + symsect->sh_name);
99227
99228@@ -2308,16 +2351,16 @@ static void layout_symtab(struct module *mod, struct load_info *info)
99229 }
99230
99231 /* Append room for core symbols at end of core part. */
99232- info->symoffs = ALIGN(mod->core_size, symsect->sh_addralign ?: 1);
99233- info->stroffs = mod->core_size = info->symoffs + ndst * sizeof(Elf_Sym);
99234- mod->core_size += strtab_size;
99235- mod->core_size = debug_align(mod->core_size);
99236+ info->symoffs = ALIGN(mod->core_size_rx, symsect->sh_addralign ?: 1);
99237+ info->stroffs = mod->core_size_rx = info->symoffs + ndst * sizeof(Elf_Sym);
99238+ mod->core_size_rx += strtab_size;
99239+ mod->core_size_rx = debug_align(mod->core_size_rx);
99240
99241 /* Put string table section at end of init part of module. */
99242 strsect->sh_flags |= SHF_ALLOC;
99243- strsect->sh_entsize = get_offset(mod, &mod->init_size, strsect,
99244+ strsect->sh_entsize = get_offset(mod, &mod->init_size_rx, strsect,
99245 info->index.str) | INIT_OFFSET_MASK;
99246- mod->init_size = debug_align(mod->init_size);
99247+ mod->init_size_rx = debug_align(mod->init_size_rx);
99248 pr_debug("\t%s\n", info->secstrings + strsect->sh_name);
99249 }
99250
99251@@ -2334,12 +2377,14 @@ static void add_kallsyms(struct module *mod, const struct load_info *info)
99252 /* Make sure we get permanent strtab: don't use info->strtab. */
99253 mod->strtab = (void *)info->sechdrs[info->index.str].sh_addr;
99254
99255+ pax_open_kernel();
99256+
99257 /* Set types up while we still have access to sections. */
99258 for (i = 0; i < mod->num_symtab; i++)
99259 mod->symtab[i].st_info = elf_type(&mod->symtab[i], info);
99260
99261- mod->core_symtab = dst = mod->module_core + info->symoffs;
99262- mod->core_strtab = s = mod->module_core + info->stroffs;
99263+ mod->core_symtab = dst = mod->module_core_rx + info->symoffs;
99264+ mod->core_strtab = s = mod->module_core_rx + info->stroffs;
99265 src = mod->symtab;
99266 for (ndst = i = 0; i < mod->num_symtab; i++) {
99267 if (i == 0 ||
99268@@ -2351,6 +2396,8 @@ static void add_kallsyms(struct module *mod, const struct load_info *info)
99269 }
99270 }
99271 mod->core_num_syms = ndst;
99272+
99273+ pax_close_kernel();
99274 }
99275 #else
99276 static inline void layout_symtab(struct module *mod, struct load_info *info)
99277@@ -2384,17 +2431,33 @@ void * __weak module_alloc(unsigned long size)
99278 return vmalloc_exec(size);
99279 }
99280
99281-static void *module_alloc_update_bounds(unsigned long size)
99282+static void *module_alloc_update_bounds_rw(unsigned long size)
99283 {
99284 void *ret = module_alloc(size);
99285
99286 if (ret) {
99287 mutex_lock(&module_mutex);
99288 /* Update module bounds. */
99289- if ((unsigned long)ret < module_addr_min)
99290- module_addr_min = (unsigned long)ret;
99291- if ((unsigned long)ret + size > module_addr_max)
99292- module_addr_max = (unsigned long)ret + size;
99293+ if ((unsigned long)ret < module_addr_min_rw)
99294+ module_addr_min_rw = (unsigned long)ret;
99295+ if ((unsigned long)ret + size > module_addr_max_rw)
99296+ module_addr_max_rw = (unsigned long)ret + size;
99297+ mutex_unlock(&module_mutex);
99298+ }
99299+ return ret;
99300+}
99301+
99302+static void *module_alloc_update_bounds_rx(unsigned long size)
99303+{
99304+ void *ret = module_alloc_exec(size);
99305+
99306+ if (ret) {
99307+ mutex_lock(&module_mutex);
99308+ /* Update module bounds. */
99309+ if ((unsigned long)ret < module_addr_min_rx)
99310+ module_addr_min_rx = (unsigned long)ret;
99311+ if ((unsigned long)ret + size > module_addr_max_rx)
99312+ module_addr_max_rx = (unsigned long)ret + size;
99313 mutex_unlock(&module_mutex);
99314 }
99315 return ret;
99316@@ -2665,7 +2728,15 @@ static struct module *setup_load_info(struct load_info *info, int flags)
99317 mod = (void *)info->sechdrs[info->index.mod].sh_addr;
99318
99319 if (info->index.sym == 0) {
99320+#ifdef CONFIG_GRKERNSEC_RANDSTRUCT
99321+ /*
99322+ * avoid potentially printing jibberish on attempted load
99323+ * of a module randomized with a different seed
99324+ */
99325+ pr_warn("module has no symbols (stripped?)\n");
99326+#else
99327 pr_warn("%s: module has no symbols (stripped?)\n", mod->name);
99328+#endif
99329 return ERR_PTR(-ENOEXEC);
99330 }
99331
99332@@ -2681,8 +2752,14 @@ static struct module *setup_load_info(struct load_info *info, int flags)
99333 static int check_modinfo(struct module *mod, struct load_info *info, int flags)
99334 {
99335 const char *modmagic = get_modinfo(info, "vermagic");
99336+ const char *license = get_modinfo(info, "license");
99337 int err;
99338
99339+#ifdef CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_OR
99340+ if (!license || !license_is_gpl_compatible(license))
99341+ return -ENOEXEC;
99342+#endif
99343+
99344 if (flags & MODULE_INIT_IGNORE_VERMAGIC)
99345 modmagic = NULL;
99346
99347@@ -2707,7 +2784,7 @@ static int check_modinfo(struct module *mod, struct load_info *info, int flags)
99348 }
99349
99350 /* Set up license info based on the info section */
99351- set_license(mod, get_modinfo(info, "license"));
99352+ set_license(mod, license);
99353
99354 return 0;
99355 }
99356@@ -2801,7 +2878,7 @@ static int move_module(struct module *mod, struct load_info *info)
99357 void *ptr;
99358
99359 /* Do the allocs. */
99360- ptr = module_alloc_update_bounds(mod->core_size);
99361+ ptr = module_alloc_update_bounds_rw(mod->core_size_rw);
99362 /*
99363 * The pointer to this block is stored in the module structure
99364 * which is inside the block. Just mark it as not being a
99365@@ -2811,11 +2888,11 @@ static int move_module(struct module *mod, struct load_info *info)
99366 if (!ptr)
99367 return -ENOMEM;
99368
99369- memset(ptr, 0, mod->core_size);
99370- mod->module_core = ptr;
99371+ memset(ptr, 0, mod->core_size_rw);
99372+ mod->module_core_rw = ptr;
99373
99374- if (mod->init_size) {
99375- ptr = module_alloc_update_bounds(mod->init_size);
99376+ if (mod->init_size_rw) {
99377+ ptr = module_alloc_update_bounds_rw(mod->init_size_rw);
99378 /*
99379 * The pointer to this block is stored in the module structure
99380 * which is inside the block. This block doesn't need to be
99381@@ -2824,13 +2901,45 @@ static int move_module(struct module *mod, struct load_info *info)
99382 */
99383 kmemleak_ignore(ptr);
99384 if (!ptr) {
99385- module_memfree(mod->module_core);
99386+ module_memfree(mod->module_core_rw);
99387 return -ENOMEM;
99388 }
99389- memset(ptr, 0, mod->init_size);
99390- mod->module_init = ptr;
99391+ memset(ptr, 0, mod->init_size_rw);
99392+ mod->module_init_rw = ptr;
99393 } else
99394- mod->module_init = NULL;
99395+ mod->module_init_rw = NULL;
99396+
99397+ ptr = module_alloc_update_bounds_rx(mod->core_size_rx);
99398+ kmemleak_not_leak(ptr);
99399+ if (!ptr) {
99400+ if (mod->module_init_rw)
99401+ module_memfree(mod->module_init_rw);
99402+ module_memfree(mod->module_core_rw);
99403+ return -ENOMEM;
99404+ }
99405+
99406+ pax_open_kernel();
99407+ memset(ptr, 0, mod->core_size_rx);
99408+ pax_close_kernel();
99409+ mod->module_core_rx = ptr;
99410+
99411+ if (mod->init_size_rx) {
99412+ ptr = module_alloc_update_bounds_rx(mod->init_size_rx);
99413+ kmemleak_ignore(ptr);
99414+ if (!ptr && mod->init_size_rx) {
99415+ module_memfree_exec(mod->module_core_rx);
99416+ if (mod->module_init_rw)
99417+ module_memfree(mod->module_init_rw);
99418+ module_memfree(mod->module_core_rw);
99419+ return -ENOMEM;
99420+ }
99421+
99422+ pax_open_kernel();
99423+ memset(ptr, 0, mod->init_size_rx);
99424+ pax_close_kernel();
99425+ mod->module_init_rx = ptr;
99426+ } else
99427+ mod->module_init_rx = NULL;
99428
99429 /* Transfer each section which specifies SHF_ALLOC */
99430 pr_debug("final section addresses:\n");
99431@@ -2841,16 +2950,45 @@ static int move_module(struct module *mod, struct load_info *info)
99432 if (!(shdr->sh_flags & SHF_ALLOC))
99433 continue;
99434
99435- if (shdr->sh_entsize & INIT_OFFSET_MASK)
99436- dest = mod->module_init
99437- + (shdr->sh_entsize & ~INIT_OFFSET_MASK);
99438- else
99439- dest = mod->module_core + shdr->sh_entsize;
99440+ if (shdr->sh_entsize & INIT_OFFSET_MASK) {
99441+ if ((shdr->sh_flags & SHF_WRITE) || !(shdr->sh_flags & SHF_ALLOC))
99442+ dest = mod->module_init_rw
99443+ + (shdr->sh_entsize & ~INIT_OFFSET_MASK);
99444+ else
99445+ dest = mod->module_init_rx
99446+ + (shdr->sh_entsize & ~INIT_OFFSET_MASK);
99447+ } else {
99448+ if ((shdr->sh_flags & SHF_WRITE) || !(shdr->sh_flags & SHF_ALLOC))
99449+ dest = mod->module_core_rw + shdr->sh_entsize;
99450+ else
99451+ dest = mod->module_core_rx + shdr->sh_entsize;
99452+ }
99453+
99454+ if (shdr->sh_type != SHT_NOBITS) {
99455+
99456+#ifdef CONFIG_PAX_KERNEXEC
99457+#ifdef CONFIG_X86_64
99458+ if ((shdr->sh_flags & SHF_WRITE) && (shdr->sh_flags & SHF_EXECINSTR))
99459+ set_memory_x((unsigned long)dest, (shdr->sh_size + PAGE_SIZE) >> PAGE_SHIFT);
99460+#endif
99461+ if (!(shdr->sh_flags & SHF_WRITE) && (shdr->sh_flags & SHF_ALLOC)) {
99462+ pax_open_kernel();
99463+ memcpy(dest, (void *)shdr->sh_addr, shdr->sh_size);
99464+ pax_close_kernel();
99465+ } else
99466+#endif
99467
99468- if (shdr->sh_type != SHT_NOBITS)
99469 memcpy(dest, (void *)shdr->sh_addr, shdr->sh_size);
99470+ }
99471 /* Update sh_addr to point to copy in image. */
99472- shdr->sh_addr = (unsigned long)dest;
99473+
99474+#ifdef CONFIG_PAX_KERNEXEC
99475+ if (shdr->sh_flags & SHF_EXECINSTR)
99476+ shdr->sh_addr = ktva_ktla((unsigned long)dest);
99477+ else
99478+#endif
99479+
99480+ shdr->sh_addr = (unsigned long)dest;
99481 pr_debug("\t0x%lx %s\n",
99482 (long)shdr->sh_addr, info->secstrings + shdr->sh_name);
99483 }
99484@@ -2907,12 +3045,12 @@ static void flush_module_icache(const struct module *mod)
99485 * Do it before processing of module parameters, so the module
99486 * can provide parameter accessor functions of its own.
99487 */
99488- if (mod->module_init)
99489- flush_icache_range((unsigned long)mod->module_init,
99490- (unsigned long)mod->module_init
99491- + mod->init_size);
99492- flush_icache_range((unsigned long)mod->module_core,
99493- (unsigned long)mod->module_core + mod->core_size);
99494+ if (mod->module_init_rx)
99495+ flush_icache_range((unsigned long)mod->module_init_rx,
99496+ (unsigned long)mod->module_init_rx
99497+ + mod->init_size_rx);
99498+ flush_icache_range((unsigned long)mod->module_core_rx,
99499+ (unsigned long)mod->module_core_rx + mod->core_size_rx);
99500
99501 set_fs(old_fs);
99502 }
99503@@ -2970,8 +3108,10 @@ static void module_deallocate(struct module *mod, struct load_info *info)
99504 {
99505 percpu_modfree(mod);
99506 module_arch_freeing_init(mod);
99507- module_memfree(mod->module_init);
99508- module_memfree(mod->module_core);
99509+ module_memfree_exec(mod->module_init_rx);
99510+ module_memfree_exec(mod->module_core_rx);
99511+ module_memfree(mod->module_init_rw);
99512+ module_memfree(mod->module_core_rw);
99513 }
99514
99515 int __weak module_finalize(const Elf_Ehdr *hdr,
99516@@ -2984,7 +3124,9 @@ int __weak module_finalize(const Elf_Ehdr *hdr,
99517 static int post_relocation(struct module *mod, const struct load_info *info)
99518 {
99519 /* Sort exception table now relocations are done. */
99520+ pax_open_kernel();
99521 sort_extable(mod->extable, mod->extable + mod->num_exentries);
99522+ pax_close_kernel();
99523
99524 /* Copy relocated percpu area over. */
99525 percpu_modcopy(mod, (void *)info->sechdrs[info->index.pcpu].sh_addr,
99526@@ -3032,13 +3174,15 @@ static void do_mod_ctors(struct module *mod)
99527 /* For freeing module_init on success, in case kallsyms traversing */
99528 struct mod_initfree {
99529 struct rcu_head rcu;
99530- void *module_init;
99531+ void *module_init_rw;
99532+ void *module_init_rx;
99533 };
99534
99535 static void do_free_init(struct rcu_head *head)
99536 {
99537 struct mod_initfree *m = container_of(head, struct mod_initfree, rcu);
99538- module_memfree(m->module_init);
99539+ module_memfree(m->module_init_rw);
99540+ module_memfree_exec(m->module_init_rx);
99541 kfree(m);
99542 }
99543
99544@@ -3058,7 +3202,8 @@ static noinline int do_init_module(struct module *mod)
99545 ret = -ENOMEM;
99546 goto fail;
99547 }
99548- freeinit->module_init = mod->module_init;
99549+ freeinit->module_init_rw = mod->module_init_rw;
99550+ freeinit->module_init_rx = mod->module_init_rx;
99551
99552 /*
99553 * We want to find out whether @mod uses async during init. Clear
99554@@ -3117,10 +3262,10 @@ static noinline int do_init_module(struct module *mod)
99555 #endif
99556 unset_module_init_ro_nx(mod);
99557 module_arch_freeing_init(mod);
99558- mod->module_init = NULL;
99559- mod->init_size = 0;
99560- mod->init_ro_size = 0;
99561- mod->init_text_size = 0;
99562+ mod->module_init_rw = NULL;
99563+ mod->module_init_rx = NULL;
99564+ mod->init_size_rw = 0;
99565+ mod->init_size_rx = 0;
99566 /*
99567 * We want to free module_init, but be aware that kallsyms may be
99568 * walking this with preempt disabled. In all the failure paths,
99569@@ -3208,16 +3353,16 @@ static int complete_formation(struct module *mod, struct load_info *info)
99570 module_bug_finalize(info->hdr, info->sechdrs, mod);
99571
99572 /* Set RO and NX regions for core */
99573- set_section_ro_nx(mod->module_core,
99574- mod->core_text_size,
99575- mod->core_ro_size,
99576- mod->core_size);
99577+ set_section_ro_nx(mod->module_core_rx,
99578+ mod->core_size_rx,
99579+ mod->core_size_rx,
99580+ mod->core_size_rx);
99581
99582 /* Set RO and NX regions for init */
99583- set_section_ro_nx(mod->module_init,
99584- mod->init_text_size,
99585- mod->init_ro_size,
99586- mod->init_size);
99587+ set_section_ro_nx(mod->module_init_rx,
99588+ mod->init_size_rx,
99589+ mod->init_size_rx,
99590+ mod->init_size_rx);
99591
99592 /* Mark state as coming so strong_try_module_get() ignores us,
99593 * but kallsyms etc. can see us. */
99594@@ -3301,9 +3446,38 @@ static int load_module(struct load_info *info, const char __user *uargs,
99595 if (err)
99596 goto free_unload;
99597
99598+ /* Now copy in args */
99599+ mod->args = strndup_user(uargs, ~0UL >> 1);
99600+ if (IS_ERR(mod->args)) {
99601+ err = PTR_ERR(mod->args);
99602+ goto free_unload;
99603+ }
99604+
99605 /* Set up MODINFO_ATTR fields */
99606 setup_modinfo(mod, info);
99607
99608+#ifdef CONFIG_GRKERNSEC_MODHARDEN
99609+ {
99610+ char *p, *p2;
99611+
99612+ if (strstr(mod->args, "grsec_modharden_netdev")) {
99613+ 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);
99614+ err = -EPERM;
99615+ goto free_modinfo;
99616+ } else if ((p = strstr(mod->args, "grsec_modharden_normal"))) {
99617+ p += sizeof("grsec_modharden_normal") - 1;
99618+ p2 = strstr(p, "_");
99619+ if (p2) {
99620+ *p2 = '\0';
99621+ printk(KERN_ALERT "grsec: denied kernel module auto-load of %.64s by uid %.9s\n", mod->name, p);
99622+ *p2 = '_';
99623+ }
99624+ err = -EPERM;
99625+ goto free_modinfo;
99626+ }
99627+ }
99628+#endif
99629+
99630 /* Fix up syms, so that st_value is a pointer to location. */
99631 err = simplify_symbols(mod, info);
99632 if (err < 0)
99633@@ -3319,13 +3493,6 @@ static int load_module(struct load_info *info, const char __user *uargs,
99634
99635 flush_module_icache(mod);
99636
99637- /* Now copy in args */
99638- mod->args = strndup_user(uargs, ~0UL >> 1);
99639- if (IS_ERR(mod->args)) {
99640- err = PTR_ERR(mod->args);
99641- goto free_arch_cleanup;
99642- }
99643-
99644 dynamic_debug_setup(info->debug, info->num_debug);
99645
99646 /* Ftrace init must be called in the MODULE_STATE_UNFORMED state */
99647@@ -3376,11 +3543,10 @@ static int load_module(struct load_info *info, const char __user *uargs,
99648 ddebug_cleanup:
99649 dynamic_debug_remove(info->debug);
99650 synchronize_sched();
99651- kfree(mod->args);
99652- free_arch_cleanup:
99653 module_arch_cleanup(mod);
99654 free_modinfo:
99655 free_modinfo(mod);
99656+ kfree(mod->args);
99657 free_unload:
99658 module_unload_free(mod);
99659 unlink_mod:
99660@@ -3393,7 +3559,8 @@ static int load_module(struct load_info *info, const char __user *uargs,
99661 mutex_unlock(&module_mutex);
99662 free_module:
99663 /* Free lock-classes; relies on the preceding sync_rcu() */
99664- lockdep_free_key_range(mod->module_core, mod->core_size);
99665+ lockdep_free_key_range(mod->module_core_rx, mod->core_size_rx);
99666+ lockdep_free_key_range(mod->module_core_rw, mod->core_size_rw);
99667
99668 module_deallocate(mod, info);
99669 free_copy:
99670@@ -3470,10 +3637,16 @@ static const char *get_ksymbol(struct module *mod,
99671 unsigned long nextval;
99672
99673 /* At worse, next value is at end of module */
99674- if (within_module_init(addr, mod))
99675- nextval = (unsigned long)mod->module_init+mod->init_text_size;
99676+ if (within_module_init_rx(addr, mod))
99677+ nextval = (unsigned long)mod->module_init_rx+mod->init_size_rx;
99678+ else if (within_module_init_rw(addr, mod))
99679+ nextval = (unsigned long)mod->module_init_rw+mod->init_size_rw;
99680+ else if (within_module_core_rx(addr, mod))
99681+ nextval = (unsigned long)mod->module_core_rx+mod->core_size_rx;
99682+ else if (within_module_core_rw(addr, mod))
99683+ nextval = (unsigned long)mod->module_core_rw+mod->core_size_rw;
99684 else
99685- nextval = (unsigned long)mod->module_core+mod->core_text_size;
99686+ return NULL;
99687
99688 /* Scan for closest preceding symbol, and next symbol. (ELF
99689 starts real symbols at 1). */
99690@@ -3721,7 +3894,7 @@ static int m_show(struct seq_file *m, void *p)
99691 return 0;
99692
99693 seq_printf(m, "%s %u",
99694- mod->name, mod->init_size + mod->core_size);
99695+ mod->name, mod->init_size_rx + mod->init_size_rw + mod->core_size_rx + mod->core_size_rw);
99696 print_unload_info(m, mod);
99697
99698 /* Informative for users. */
99699@@ -3730,7 +3903,7 @@ static int m_show(struct seq_file *m, void *p)
99700 mod->state == MODULE_STATE_COMING ? "Loading" :
99701 "Live");
99702 /* Used by oprofile and other similar tools. */
99703- seq_printf(m, " 0x%pK", mod->module_core);
99704+ seq_printf(m, " 0x%pK 0x%pK", mod->module_core_rx, mod->module_core_rw);
99705
99706 /* Taints info */
99707 if (mod->taints)
99708@@ -3766,7 +3939,17 @@ static const struct file_operations proc_modules_operations = {
99709
99710 static int __init proc_modules_init(void)
99711 {
99712+#ifndef CONFIG_GRKERNSEC_HIDESYM
99713+#ifdef CONFIG_GRKERNSEC_PROC_USER
99714+ proc_create("modules", S_IRUSR, NULL, &proc_modules_operations);
99715+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
99716+ proc_create("modules", S_IRUSR | S_IRGRP, NULL, &proc_modules_operations);
99717+#else
99718 proc_create("modules", 0, NULL, &proc_modules_operations);
99719+#endif
99720+#else
99721+ proc_create("modules", S_IRUSR, NULL, &proc_modules_operations);
99722+#endif
99723 return 0;
99724 }
99725 module_init(proc_modules_init);
99726@@ -3827,7 +4010,8 @@ struct module *__module_address(unsigned long addr)
99727 {
99728 struct module *mod;
99729
99730- if (addr < module_addr_min || addr > module_addr_max)
99731+ if ((addr < module_addr_min_rx || addr > module_addr_max_rx) &&
99732+ (addr < module_addr_min_rw || addr > module_addr_max_rw))
99733 return NULL;
99734
99735 list_for_each_entry_rcu(mod, &modules, list) {
99736@@ -3868,11 +4052,20 @@ bool is_module_text_address(unsigned long addr)
99737 */
99738 struct module *__module_text_address(unsigned long addr)
99739 {
99740- struct module *mod = __module_address(addr);
99741+ struct module *mod;
99742+
99743+#ifdef CONFIG_X86_32
99744+ addr = ktla_ktva(addr);
99745+#endif
99746+
99747+ if (addr < module_addr_min_rx || addr > module_addr_max_rx)
99748+ return NULL;
99749+
99750+ mod = __module_address(addr);
99751+
99752 if (mod) {
99753 /* Make sure it's within the text section. */
99754- if (!within(addr, mod->module_init, mod->init_text_size)
99755- && !within(addr, mod->module_core, mod->core_text_size))
99756+ if (!within_module_init_rx(addr, mod) && !within_module_core_rx(addr, mod))
99757 mod = NULL;
99758 }
99759 return mod;
99760diff --git a/kernel/notifier.c b/kernel/notifier.c
99761index ae9fc7c..5085fbf 100644
99762--- a/kernel/notifier.c
99763+++ b/kernel/notifier.c
99764@@ -5,6 +5,7 @@
99765 #include <linux/rcupdate.h>
99766 #include <linux/vmalloc.h>
99767 #include <linux/reboot.h>
99768+#include <linux/mm.h>
99769
99770 /*
99771 * Notifier list for kernel code which wants to be called
99772@@ -24,10 +25,12 @@ static int notifier_chain_register(struct notifier_block **nl,
99773 while ((*nl) != NULL) {
99774 if (n->priority > (*nl)->priority)
99775 break;
99776- nl = &((*nl)->next);
99777+ nl = (struct notifier_block **)&((*nl)->next);
99778 }
99779- n->next = *nl;
99780+ pax_open_kernel();
99781+ *(const void **)&n->next = *nl;
99782 rcu_assign_pointer(*nl, n);
99783+ pax_close_kernel();
99784 return 0;
99785 }
99786
99787@@ -39,10 +42,12 @@ static int notifier_chain_cond_register(struct notifier_block **nl,
99788 return 0;
99789 if (n->priority > (*nl)->priority)
99790 break;
99791- nl = &((*nl)->next);
99792+ nl = (struct notifier_block **)&((*nl)->next);
99793 }
99794- n->next = *nl;
99795+ pax_open_kernel();
99796+ *(const void **)&n->next = *nl;
99797 rcu_assign_pointer(*nl, n);
99798+ pax_close_kernel();
99799 return 0;
99800 }
99801
99802@@ -51,10 +56,12 @@ static int notifier_chain_unregister(struct notifier_block **nl,
99803 {
99804 while ((*nl) != NULL) {
99805 if ((*nl) == n) {
99806+ pax_open_kernel();
99807 rcu_assign_pointer(*nl, n->next);
99808+ pax_close_kernel();
99809 return 0;
99810 }
99811- nl = &((*nl)->next);
99812+ nl = (struct notifier_block **)&((*nl)->next);
99813 }
99814 return -ENOENT;
99815 }
99816diff --git a/kernel/padata.c b/kernel/padata.c
99817index b38bea9..91acfbe 100644
99818--- a/kernel/padata.c
99819+++ b/kernel/padata.c
99820@@ -54,7 +54,7 @@ static int padata_cpu_hash(struct parallel_data *pd)
99821 * seq_nr mod. number of cpus in use.
99822 */
99823
99824- seq_nr = atomic_inc_return(&pd->seq_nr);
99825+ seq_nr = atomic_inc_return_unchecked(&pd->seq_nr);
99826 cpu_index = seq_nr % cpumask_weight(pd->cpumask.pcpu);
99827
99828 return padata_index_to_cpu(pd, cpu_index);
99829@@ -428,7 +428,7 @@ static struct parallel_data *padata_alloc_pd(struct padata_instance *pinst,
99830 padata_init_pqueues(pd);
99831 padata_init_squeues(pd);
99832 setup_timer(&pd->timer, padata_reorder_timer, (unsigned long)pd);
99833- atomic_set(&pd->seq_nr, -1);
99834+ atomic_set_unchecked(&pd->seq_nr, -1);
99835 atomic_set(&pd->reorder_objects, 0);
99836 atomic_set(&pd->refcnt, 0);
99837 pd->pinst = pinst;
99838diff --git a/kernel/panic.c b/kernel/panic.c
99839index 8136ad7..15c857b 100644
99840--- a/kernel/panic.c
99841+++ b/kernel/panic.c
99842@@ -54,7 +54,7 @@ EXPORT_SYMBOL(panic_blink);
99843 /*
99844 * Stop ourself in panic -- architecture code may override this
99845 */
99846-void __weak panic_smp_self_stop(void)
99847+void __weak __noreturn panic_smp_self_stop(void)
99848 {
99849 while (1)
99850 cpu_relax();
99851@@ -425,7 +425,7 @@ static void warn_slowpath_common(const char *file, int line, void *caller,
99852 disable_trace_on_warning();
99853
99854 pr_warn("------------[ cut here ]------------\n");
99855- pr_warn("WARNING: CPU: %d PID: %d at %s:%d %pS()\n",
99856+ pr_warn("WARNING: CPU: %d PID: %d at %s:%d %pA()\n",
99857 raw_smp_processor_id(), current->pid, file, line, caller);
99858
99859 if (args)
99860@@ -490,7 +490,8 @@ EXPORT_SYMBOL(warn_slowpath_null);
99861 */
99862 __visible void __stack_chk_fail(void)
99863 {
99864- panic("stack-protector: Kernel stack is corrupted in: %p\n",
99865+ dump_stack();
99866+ panic("stack-protector: Kernel stack is corrupted in: %pA\n",
99867 __builtin_return_address(0));
99868 }
99869 EXPORT_SYMBOL(__stack_chk_fail);
99870diff --git a/kernel/pid.c b/kernel/pid.c
99871index cd36a5e..11f185d 100644
99872--- a/kernel/pid.c
99873+++ b/kernel/pid.c
99874@@ -33,6 +33,7 @@
99875 #include <linux/rculist.h>
99876 #include <linux/bootmem.h>
99877 #include <linux/hash.h>
99878+#include <linux/security.h>
99879 #include <linux/pid_namespace.h>
99880 #include <linux/init_task.h>
99881 #include <linux/syscalls.h>
99882@@ -47,7 +48,7 @@ struct pid init_struct_pid = INIT_STRUCT_PID;
99883
99884 int pid_max = PID_MAX_DEFAULT;
99885
99886-#define RESERVED_PIDS 300
99887+#define RESERVED_PIDS 500
99888
99889 int pid_max_min = RESERVED_PIDS + 1;
99890 int pid_max_max = PID_MAX_LIMIT;
99891@@ -450,10 +451,18 @@ EXPORT_SYMBOL(pid_task);
99892 */
99893 struct task_struct *find_task_by_pid_ns(pid_t nr, struct pid_namespace *ns)
99894 {
99895+ struct task_struct *task;
99896+
99897 rcu_lockdep_assert(rcu_read_lock_held(),
99898 "find_task_by_pid_ns() needs rcu_read_lock()"
99899 " protection");
99900- return pid_task(find_pid_ns(nr, ns), PIDTYPE_PID);
99901+
99902+ task = pid_task(find_pid_ns(nr, ns), PIDTYPE_PID);
99903+
99904+ if (gr_pid_is_chrooted(task))
99905+ return NULL;
99906+
99907+ return task;
99908 }
99909
99910 struct task_struct *find_task_by_vpid(pid_t vnr)
99911@@ -461,6 +470,14 @@ struct task_struct *find_task_by_vpid(pid_t vnr)
99912 return find_task_by_pid_ns(vnr, task_active_pid_ns(current));
99913 }
99914
99915+struct task_struct *find_task_by_vpid_unrestricted(pid_t vnr)
99916+{
99917+ rcu_lockdep_assert(rcu_read_lock_held(),
99918+ "find_task_by_pid_ns() needs rcu_read_lock()"
99919+ " protection");
99920+ return pid_task(find_pid_ns(vnr, task_active_pid_ns(current)), PIDTYPE_PID);
99921+}
99922+
99923 struct pid *get_task_pid(struct task_struct *task, enum pid_type type)
99924 {
99925 struct pid *pid;
99926diff --git a/kernel/pid_namespace.c b/kernel/pid_namespace.c
99927index a65ba13..f600dbb 100644
99928--- a/kernel/pid_namespace.c
99929+++ b/kernel/pid_namespace.c
99930@@ -274,7 +274,7 @@ static int pid_ns_ctl_handler(struct ctl_table *table, int write,
99931 void __user *buffer, size_t *lenp, loff_t *ppos)
99932 {
99933 struct pid_namespace *pid_ns = task_active_pid_ns(current);
99934- struct ctl_table tmp = *table;
99935+ ctl_table_no_const tmp = *table;
99936
99937 if (write && !ns_capable(pid_ns->user_ns, CAP_SYS_ADMIN))
99938 return -EPERM;
99939diff --git a/kernel/power/Kconfig b/kernel/power/Kconfig
99940index 7e01f78..f5da19d 100644
99941--- a/kernel/power/Kconfig
99942+++ b/kernel/power/Kconfig
99943@@ -24,6 +24,8 @@ config HIBERNATE_CALLBACKS
99944 config HIBERNATION
99945 bool "Hibernation (aka 'suspend to disk')"
99946 depends on SWAP && ARCH_HIBERNATION_POSSIBLE
99947+ depends on !GRKERNSEC_KMEM
99948+ depends on !PAX_MEMORY_SANITIZE
99949 select HIBERNATE_CALLBACKS
99950 select LZO_COMPRESS
99951 select LZO_DECOMPRESS
99952diff --git a/kernel/power/process.c b/kernel/power/process.c
99953index 564f786..361a18e 100644
99954--- a/kernel/power/process.c
99955+++ b/kernel/power/process.c
99956@@ -35,6 +35,7 @@ static int try_to_freeze_tasks(bool user_only)
99957 unsigned int elapsed_msecs;
99958 bool wakeup = false;
99959 int sleep_usecs = USEC_PER_MSEC;
99960+ bool timedout = false;
99961
99962 do_gettimeofday(&start);
99963
99964@@ -45,13 +46,20 @@ static int try_to_freeze_tasks(bool user_only)
99965
99966 while (true) {
99967 todo = 0;
99968+ if (time_after(jiffies, end_time))
99969+ timedout = true;
99970 read_lock(&tasklist_lock);
99971 for_each_process_thread(g, p) {
99972 if (p == current || !freeze_task(p))
99973 continue;
99974
99975- if (!freezer_should_skip(p))
99976+ if (!freezer_should_skip(p)) {
99977 todo++;
99978+ if (timedout) {
99979+ printk(KERN_ERR "Task refusing to freeze:\n");
99980+ sched_show_task(p);
99981+ }
99982+ }
99983 }
99984 read_unlock(&tasklist_lock);
99985
99986@@ -60,7 +68,7 @@ static int try_to_freeze_tasks(bool user_only)
99987 todo += wq_busy;
99988 }
99989
99990- if (!todo || time_after(jiffies, end_time))
99991+ if (!todo || timedout)
99992 break;
99993
99994 if (pm_wakeup_pending()) {
99995diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
99996index bb0635b..9aff9f3 100644
99997--- a/kernel/printk/printk.c
99998+++ b/kernel/printk/printk.c
99999@@ -486,6 +486,11 @@ int check_syslog_permissions(int type, bool from_file)
100000 if (from_file && type != SYSLOG_ACTION_OPEN)
100001 return 0;
100002
100003+#ifdef CONFIG_GRKERNSEC_DMESG
100004+ if (grsec_enable_dmesg && !capable(CAP_SYSLOG) && !capable_nolog(CAP_SYS_ADMIN))
100005+ return -EPERM;
100006+#endif
100007+
100008 if (syslog_action_restricted(type)) {
100009 if (capable(CAP_SYSLOG))
100010 return 0;
100011diff --git a/kernel/profile.c b/kernel/profile.c
100012index a7bcd28..5b368fa 100644
100013--- a/kernel/profile.c
100014+++ b/kernel/profile.c
100015@@ -37,7 +37,7 @@ struct profile_hit {
100016 #define NR_PROFILE_HIT (PAGE_SIZE/sizeof(struct profile_hit))
100017 #define NR_PROFILE_GRP (NR_PROFILE_HIT/PROFILE_GRPSZ)
100018
100019-static atomic_t *prof_buffer;
100020+static atomic_unchecked_t *prof_buffer;
100021 static unsigned long prof_len, prof_shift;
100022
100023 int prof_on __read_mostly;
100024@@ -256,7 +256,7 @@ static void profile_flip_buffers(void)
100025 hits[i].pc = 0;
100026 continue;
100027 }
100028- atomic_add(hits[i].hits, &prof_buffer[hits[i].pc]);
100029+ atomic_add_unchecked(hits[i].hits, &prof_buffer[hits[i].pc]);
100030 hits[i].hits = hits[i].pc = 0;
100031 }
100032 }
100033@@ -317,9 +317,9 @@ static void do_profile_hits(int type, void *__pc, unsigned int nr_hits)
100034 * Add the current hit(s) and flush the write-queue out
100035 * to the global buffer:
100036 */
100037- atomic_add(nr_hits, &prof_buffer[pc]);
100038+ atomic_add_unchecked(nr_hits, &prof_buffer[pc]);
100039 for (i = 0; i < NR_PROFILE_HIT; ++i) {
100040- atomic_add(hits[i].hits, &prof_buffer[hits[i].pc]);
100041+ atomic_add_unchecked(hits[i].hits, &prof_buffer[hits[i].pc]);
100042 hits[i].pc = hits[i].hits = 0;
100043 }
100044 out:
100045@@ -394,7 +394,7 @@ static void do_profile_hits(int type, void *__pc, unsigned int nr_hits)
100046 {
100047 unsigned long pc;
100048 pc = ((unsigned long)__pc - (unsigned long)_stext) >> prof_shift;
100049- atomic_add(nr_hits, &prof_buffer[min(pc, prof_len - 1)]);
100050+ atomic_add_unchecked(nr_hits, &prof_buffer[min(pc, prof_len - 1)]);
100051 }
100052 #endif /* !CONFIG_SMP */
100053
100054@@ -489,7 +489,7 @@ read_profile(struct file *file, char __user *buf, size_t count, loff_t *ppos)
100055 return -EFAULT;
100056 buf++; p++; count--; read++;
100057 }
100058- pnt = (char *)prof_buffer + p - sizeof(atomic_t);
100059+ pnt = (char *)prof_buffer + p - sizeof(atomic_unchecked_t);
100060 if (copy_to_user(buf, (void *)pnt, count))
100061 return -EFAULT;
100062 read += count;
100063@@ -520,7 +520,7 @@ static ssize_t write_profile(struct file *file, const char __user *buf,
100064 }
100065 #endif
100066 profile_discard_flip_buffers();
100067- memset(prof_buffer, 0, prof_len * sizeof(atomic_t));
100068+ memset(prof_buffer, 0, prof_len * sizeof(atomic_unchecked_t));
100069 return count;
100070 }
100071
100072diff --git a/kernel/ptrace.c b/kernel/ptrace.c
100073index 9a34bd8..38d90e5 100644
100074--- a/kernel/ptrace.c
100075+++ b/kernel/ptrace.c
100076@@ -321,7 +321,7 @@ static int ptrace_attach(struct task_struct *task, long request,
100077 if (seize)
100078 flags |= PT_SEIZED;
100079 rcu_read_lock();
100080- if (ns_capable(__task_cred(task)->user_ns, CAP_SYS_PTRACE))
100081+ if (ns_capable_nolog(__task_cred(task)->user_ns, CAP_SYS_PTRACE))
100082 flags |= PT_PTRACE_CAP;
100083 rcu_read_unlock();
100084 task->ptrace = flags;
100085@@ -515,7 +515,7 @@ int ptrace_readdata(struct task_struct *tsk, unsigned long src, char __user *dst
100086 break;
100087 return -EIO;
100088 }
100089- if (copy_to_user(dst, buf, retval))
100090+ if (retval > sizeof(buf) || copy_to_user(dst, buf, retval))
100091 return -EFAULT;
100092 copied += retval;
100093 src += retval;
100094@@ -803,7 +803,7 @@ int ptrace_request(struct task_struct *child, long request,
100095 bool seized = child->ptrace & PT_SEIZED;
100096 int ret = -EIO;
100097 siginfo_t siginfo, *si;
100098- void __user *datavp = (void __user *) data;
100099+ void __user *datavp = (__force void __user *) data;
100100 unsigned long __user *datalp = datavp;
100101 unsigned long flags;
100102
100103@@ -1049,14 +1049,21 @@ SYSCALL_DEFINE4(ptrace, long, request, long, pid, unsigned long, addr,
100104 goto out;
100105 }
100106
100107+ if (gr_handle_ptrace(child, request)) {
100108+ ret = -EPERM;
100109+ goto out_put_task_struct;
100110+ }
100111+
100112 if (request == PTRACE_ATTACH || request == PTRACE_SEIZE) {
100113 ret = ptrace_attach(child, request, addr, data);
100114 /*
100115 * Some architectures need to do book-keeping after
100116 * a ptrace attach.
100117 */
100118- if (!ret)
100119+ if (!ret) {
100120 arch_ptrace_attach(child);
100121+ gr_audit_ptrace(child);
100122+ }
100123 goto out_put_task_struct;
100124 }
100125
100126@@ -1084,7 +1091,7 @@ int generic_ptrace_peekdata(struct task_struct *tsk, unsigned long addr,
100127 copied = access_process_vm(tsk, addr, &tmp, sizeof(tmp), 0);
100128 if (copied != sizeof(tmp))
100129 return -EIO;
100130- return put_user(tmp, (unsigned long __user *)data);
100131+ return put_user(tmp, (__force unsigned long __user *)data);
100132 }
100133
100134 int generic_ptrace_pokedata(struct task_struct *tsk, unsigned long addr,
100135@@ -1177,7 +1184,7 @@ int compat_ptrace_request(struct task_struct *child, compat_long_t request,
100136 }
100137
100138 COMPAT_SYSCALL_DEFINE4(ptrace, compat_long_t, request, compat_long_t, pid,
100139- compat_long_t, addr, compat_long_t, data)
100140+ compat_ulong_t, addr, compat_ulong_t, data)
100141 {
100142 struct task_struct *child;
100143 long ret;
100144@@ -1193,14 +1200,21 @@ COMPAT_SYSCALL_DEFINE4(ptrace, compat_long_t, request, compat_long_t, pid,
100145 goto out;
100146 }
100147
100148+ if (gr_handle_ptrace(child, request)) {
100149+ ret = -EPERM;
100150+ goto out_put_task_struct;
100151+ }
100152+
100153 if (request == PTRACE_ATTACH || request == PTRACE_SEIZE) {
100154 ret = ptrace_attach(child, request, addr, data);
100155 /*
100156 * Some architectures need to do book-keeping after
100157 * a ptrace attach.
100158 */
100159- if (!ret)
100160+ if (!ret) {
100161 arch_ptrace_attach(child);
100162+ gr_audit_ptrace(child);
100163+ }
100164 goto out_put_task_struct;
100165 }
100166
100167diff --git a/kernel/rcu/rcutorture.c b/kernel/rcu/rcutorture.c
100168index 30d42aa..cac5d66 100644
100169--- a/kernel/rcu/rcutorture.c
100170+++ b/kernel/rcu/rcutorture.c
100171@@ -134,12 +134,12 @@ static DEFINE_PER_CPU(long [RCU_TORTURE_PIPE_LEN + 1],
100172 rcu_torture_count) = { 0 };
100173 static DEFINE_PER_CPU(long [RCU_TORTURE_PIPE_LEN + 1],
100174 rcu_torture_batch) = { 0 };
100175-static atomic_t rcu_torture_wcount[RCU_TORTURE_PIPE_LEN + 1];
100176-static atomic_t n_rcu_torture_alloc;
100177-static atomic_t n_rcu_torture_alloc_fail;
100178-static atomic_t n_rcu_torture_free;
100179-static atomic_t n_rcu_torture_mberror;
100180-static atomic_t n_rcu_torture_error;
100181+static atomic_unchecked_t rcu_torture_wcount[RCU_TORTURE_PIPE_LEN + 1];
100182+static atomic_unchecked_t n_rcu_torture_alloc;
100183+static atomic_unchecked_t n_rcu_torture_alloc_fail;
100184+static atomic_unchecked_t n_rcu_torture_free;
100185+static atomic_unchecked_t n_rcu_torture_mberror;
100186+static atomic_unchecked_t n_rcu_torture_error;
100187 static long n_rcu_torture_barrier_error;
100188 static long n_rcu_torture_boost_ktrerror;
100189 static long n_rcu_torture_boost_rterror;
100190@@ -148,7 +148,7 @@ static long n_rcu_torture_boosts;
100191 static long n_rcu_torture_timers;
100192 static long n_barrier_attempts;
100193 static long n_barrier_successes;
100194-static atomic_long_t n_cbfloods;
100195+static atomic_long_unchecked_t n_cbfloods;
100196 static struct list_head rcu_torture_removed;
100197
100198 static int rcu_torture_writer_state;
100199@@ -211,11 +211,11 @@ rcu_torture_alloc(void)
100200
100201 spin_lock_bh(&rcu_torture_lock);
100202 if (list_empty(&rcu_torture_freelist)) {
100203- atomic_inc(&n_rcu_torture_alloc_fail);
100204+ atomic_inc_unchecked(&n_rcu_torture_alloc_fail);
100205 spin_unlock_bh(&rcu_torture_lock);
100206 return NULL;
100207 }
100208- atomic_inc(&n_rcu_torture_alloc);
100209+ atomic_inc_unchecked(&n_rcu_torture_alloc);
100210 p = rcu_torture_freelist.next;
100211 list_del_init(p);
100212 spin_unlock_bh(&rcu_torture_lock);
100213@@ -228,7 +228,7 @@ rcu_torture_alloc(void)
100214 static void
100215 rcu_torture_free(struct rcu_torture *p)
100216 {
100217- atomic_inc(&n_rcu_torture_free);
100218+ atomic_inc_unchecked(&n_rcu_torture_free);
100219 spin_lock_bh(&rcu_torture_lock);
100220 list_add_tail(&p->rtort_free, &rcu_torture_freelist);
100221 spin_unlock_bh(&rcu_torture_lock);
100222@@ -308,7 +308,7 @@ rcu_torture_pipe_update_one(struct rcu_torture *rp)
100223 i = rp->rtort_pipe_count;
100224 if (i > RCU_TORTURE_PIPE_LEN)
100225 i = RCU_TORTURE_PIPE_LEN;
100226- atomic_inc(&rcu_torture_wcount[i]);
100227+ atomic_inc_unchecked(&rcu_torture_wcount[i]);
100228 if (++rp->rtort_pipe_count >= RCU_TORTURE_PIPE_LEN) {
100229 rp->rtort_mbtest = 0;
100230 return true;
100231@@ -796,7 +796,7 @@ rcu_torture_cbflood(void *arg)
100232 VERBOSE_TOROUT_STRING("rcu_torture_cbflood task started");
100233 do {
100234 schedule_timeout_interruptible(cbflood_inter_holdoff);
100235- atomic_long_inc(&n_cbfloods);
100236+ atomic_long_inc_unchecked(&n_cbfloods);
100237 WARN_ON(signal_pending(current));
100238 for (i = 0; i < cbflood_n_burst; i++) {
100239 for (j = 0; j < cbflood_n_per_burst; j++) {
100240@@ -915,7 +915,7 @@ rcu_torture_writer(void *arg)
100241 i = old_rp->rtort_pipe_count;
100242 if (i > RCU_TORTURE_PIPE_LEN)
100243 i = RCU_TORTURE_PIPE_LEN;
100244- atomic_inc(&rcu_torture_wcount[i]);
100245+ atomic_inc_unchecked(&rcu_torture_wcount[i]);
100246 old_rp->rtort_pipe_count++;
100247 switch (synctype[torture_random(&rand) % nsynctypes]) {
100248 case RTWS_DEF_FREE:
100249@@ -1036,7 +1036,7 @@ static void rcu_torture_timer(unsigned long unused)
100250 return;
100251 }
100252 if (p->rtort_mbtest == 0)
100253- atomic_inc(&n_rcu_torture_mberror);
100254+ atomic_inc_unchecked(&n_rcu_torture_mberror);
100255 spin_lock(&rand_lock);
100256 cur_ops->read_delay(&rand);
100257 n_rcu_torture_timers++;
100258@@ -1111,7 +1111,7 @@ rcu_torture_reader(void *arg)
100259 continue;
100260 }
100261 if (p->rtort_mbtest == 0)
100262- atomic_inc(&n_rcu_torture_mberror);
100263+ atomic_inc_unchecked(&n_rcu_torture_mberror);
100264 cur_ops->read_delay(&rand);
100265 preempt_disable();
100266 pipe_count = p->rtort_pipe_count;
100267@@ -1180,11 +1180,11 @@ rcu_torture_stats_print(void)
100268 rcu_torture_current,
100269 rcu_torture_current_version,
100270 list_empty(&rcu_torture_freelist),
100271- atomic_read(&n_rcu_torture_alloc),
100272- atomic_read(&n_rcu_torture_alloc_fail),
100273- atomic_read(&n_rcu_torture_free));
100274+ atomic_read_unchecked(&n_rcu_torture_alloc),
100275+ atomic_read_unchecked(&n_rcu_torture_alloc_fail),
100276+ atomic_read_unchecked(&n_rcu_torture_free));
100277 pr_cont("rtmbe: %d rtbke: %ld rtbre: %ld ",
100278- atomic_read(&n_rcu_torture_mberror),
100279+ atomic_read_unchecked(&n_rcu_torture_mberror),
100280 n_rcu_torture_boost_ktrerror,
100281 n_rcu_torture_boost_rterror);
100282 pr_cont("rtbf: %ld rtb: %ld nt: %ld ",
100283@@ -1196,17 +1196,17 @@ rcu_torture_stats_print(void)
100284 n_barrier_successes,
100285 n_barrier_attempts,
100286 n_rcu_torture_barrier_error);
100287- pr_cont("cbflood: %ld\n", atomic_long_read(&n_cbfloods));
100288+ pr_cont("cbflood: %ld\n", atomic_long_read_unchecked(&n_cbfloods));
100289
100290 pr_alert("%s%s ", torture_type, TORTURE_FLAG);
100291- if (atomic_read(&n_rcu_torture_mberror) != 0 ||
100292+ if (atomic_read_unchecked(&n_rcu_torture_mberror) != 0 ||
100293 n_rcu_torture_barrier_error != 0 ||
100294 n_rcu_torture_boost_ktrerror != 0 ||
100295 n_rcu_torture_boost_rterror != 0 ||
100296 n_rcu_torture_boost_failure != 0 ||
100297 i > 1) {
100298 pr_cont("%s", "!!! ");
100299- atomic_inc(&n_rcu_torture_error);
100300+ atomic_inc_unchecked(&n_rcu_torture_error);
100301 WARN_ON_ONCE(1);
100302 }
100303 pr_cont("Reader Pipe: ");
100304@@ -1223,7 +1223,7 @@ rcu_torture_stats_print(void)
100305 pr_alert("%s%s ", torture_type, TORTURE_FLAG);
100306 pr_cont("Free-Block Circulation: ");
100307 for (i = 0; i < RCU_TORTURE_PIPE_LEN + 1; i++) {
100308- pr_cont(" %d", atomic_read(&rcu_torture_wcount[i]));
100309+ pr_cont(" %d", atomic_read_unchecked(&rcu_torture_wcount[i]));
100310 }
100311 pr_cont("\n");
100312
100313@@ -1570,7 +1570,7 @@ rcu_torture_cleanup(void)
100314
100315 rcu_torture_stats_print(); /* -After- the stats thread is stopped! */
100316
100317- if (atomic_read(&n_rcu_torture_error) || n_rcu_torture_barrier_error)
100318+ if (atomic_read_unchecked(&n_rcu_torture_error) || n_rcu_torture_barrier_error)
100319 rcu_torture_print_module_parms(cur_ops, "End of test: FAILURE");
100320 else if (torture_onoff_failures())
100321 rcu_torture_print_module_parms(cur_ops,
100322@@ -1695,18 +1695,18 @@ rcu_torture_init(void)
100323
100324 rcu_torture_current = NULL;
100325 rcu_torture_current_version = 0;
100326- atomic_set(&n_rcu_torture_alloc, 0);
100327- atomic_set(&n_rcu_torture_alloc_fail, 0);
100328- atomic_set(&n_rcu_torture_free, 0);
100329- atomic_set(&n_rcu_torture_mberror, 0);
100330- atomic_set(&n_rcu_torture_error, 0);
100331+ atomic_set_unchecked(&n_rcu_torture_alloc, 0);
100332+ atomic_set_unchecked(&n_rcu_torture_alloc_fail, 0);
100333+ atomic_set_unchecked(&n_rcu_torture_free, 0);
100334+ atomic_set_unchecked(&n_rcu_torture_mberror, 0);
100335+ atomic_set_unchecked(&n_rcu_torture_error, 0);
100336 n_rcu_torture_barrier_error = 0;
100337 n_rcu_torture_boost_ktrerror = 0;
100338 n_rcu_torture_boost_rterror = 0;
100339 n_rcu_torture_boost_failure = 0;
100340 n_rcu_torture_boosts = 0;
100341 for (i = 0; i < RCU_TORTURE_PIPE_LEN + 1; i++)
100342- atomic_set(&rcu_torture_wcount[i], 0);
100343+ atomic_set_unchecked(&rcu_torture_wcount[i], 0);
100344 for_each_possible_cpu(cpu) {
100345 for (i = 0; i < RCU_TORTURE_PIPE_LEN + 1; i++) {
100346 per_cpu(rcu_torture_count, cpu)[i] = 0;
100347diff --git a/kernel/rcu/tiny.c b/kernel/rcu/tiny.c
100348index cc9ceca..ce075a6 100644
100349--- a/kernel/rcu/tiny.c
100350+++ b/kernel/rcu/tiny.c
100351@@ -42,7 +42,7 @@
100352 /* Forward declarations for tiny_plugin.h. */
100353 struct rcu_ctrlblk;
100354 static void __rcu_process_callbacks(struct rcu_ctrlblk *rcp);
100355-static void rcu_process_callbacks(struct softirq_action *unused);
100356+static void rcu_process_callbacks(void);
100357 static void __call_rcu(struct rcu_head *head,
100358 void (*func)(struct rcu_head *rcu),
100359 struct rcu_ctrlblk *rcp);
100360@@ -210,7 +210,7 @@ static void __rcu_process_callbacks(struct rcu_ctrlblk *rcp)
100361 false));
100362 }
100363
100364-static void rcu_process_callbacks(struct softirq_action *unused)
100365+static __latent_entropy void rcu_process_callbacks(void)
100366 {
100367 __rcu_process_callbacks(&rcu_sched_ctrlblk);
100368 __rcu_process_callbacks(&rcu_bh_ctrlblk);
100369diff --git a/kernel/rcu/tiny_plugin.h b/kernel/rcu/tiny_plugin.h
100370index f94e209..d2985bd 100644
100371--- a/kernel/rcu/tiny_plugin.h
100372+++ b/kernel/rcu/tiny_plugin.h
100373@@ -150,10 +150,10 @@ static void check_cpu_stall(struct rcu_ctrlblk *rcp)
100374 rcp->name, rcp->ticks_this_gp, DYNTICK_TASK_EXIT_IDLE,
100375 jiffies - rcp->gp_start, rcp->qlen);
100376 dump_stack();
100377- ACCESS_ONCE(rcp->jiffies_stall) = jiffies +
100378+ ACCESS_ONCE_RW(rcp->jiffies_stall) = jiffies +
100379 3 * rcu_jiffies_till_stall_check() + 3;
100380 } else if (ULONG_CMP_GE(j, js)) {
100381- ACCESS_ONCE(rcp->jiffies_stall) = jiffies + rcu_jiffies_till_stall_check();
100382+ ACCESS_ONCE_RW(rcp->jiffies_stall) = jiffies + rcu_jiffies_till_stall_check();
100383 }
100384 }
100385
100386@@ -161,7 +161,7 @@ static void reset_cpu_stall_ticks(struct rcu_ctrlblk *rcp)
100387 {
100388 rcp->ticks_this_gp = 0;
100389 rcp->gp_start = jiffies;
100390- ACCESS_ONCE(rcp->jiffies_stall) = jiffies + rcu_jiffies_till_stall_check();
100391+ ACCESS_ONCE_RW(rcp->jiffies_stall) = jiffies + rcu_jiffies_till_stall_check();
100392 }
100393
100394 static void check_cpu_stalls(void)
100395diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
100396index 48d640c..9401d30 100644
100397--- a/kernel/rcu/tree.c
100398+++ b/kernel/rcu/tree.c
100399@@ -268,7 +268,7 @@ static void rcu_momentary_dyntick_idle(void)
100400 */
100401 rdtp = this_cpu_ptr(&rcu_dynticks);
100402 smp_mb__before_atomic(); /* Earlier stuff before QS. */
100403- atomic_add(2, &rdtp->dynticks); /* QS. */
100404+ atomic_add_unchecked(2, &rdtp->dynticks); /* QS. */
100405 smp_mb__after_atomic(); /* Later stuff after QS. */
100406 break;
100407 }
100408@@ -580,9 +580,9 @@ static void rcu_eqs_enter_common(long long oldval, bool user)
100409 rcu_prepare_for_idle();
100410 /* CPUs seeing atomic_inc() must see prior RCU read-side crit sects */
100411 smp_mb__before_atomic(); /* See above. */
100412- atomic_inc(&rdtp->dynticks);
100413+ atomic_inc_unchecked(&rdtp->dynticks);
100414 smp_mb__after_atomic(); /* Force ordering with next sojourn. */
100415- WARN_ON_ONCE(atomic_read(&rdtp->dynticks) & 0x1);
100416+ WARN_ON_ONCE(atomic_read_unchecked(&rdtp->dynticks) & 0x1);
100417 rcu_dynticks_task_enter();
100418
100419 /*
100420@@ -703,10 +703,10 @@ static void rcu_eqs_exit_common(long long oldval, int user)
100421
100422 rcu_dynticks_task_exit();
100423 smp_mb__before_atomic(); /* Force ordering w/previous sojourn. */
100424- atomic_inc(&rdtp->dynticks);
100425+ atomic_inc_unchecked(&rdtp->dynticks);
100426 /* CPUs seeing atomic_inc() must see later RCU read-side crit sects */
100427 smp_mb__after_atomic(); /* See above. */
100428- WARN_ON_ONCE(!(atomic_read(&rdtp->dynticks) & 0x1));
100429+ WARN_ON_ONCE(!(atomic_read_unchecked(&rdtp->dynticks) & 0x1));
100430 rcu_cleanup_after_idle();
100431 trace_rcu_dyntick(TPS("End"), oldval, rdtp->dynticks_nesting);
100432 if (!user && !is_idle_task(current)) {
100433@@ -840,12 +840,12 @@ void rcu_nmi_enter(void)
100434 * to be in the outermost NMI handler that interrupted an RCU-idle
100435 * period (observation due to Andy Lutomirski).
100436 */
100437- if (!(atomic_read(&rdtp->dynticks) & 0x1)) {
100438+ if (!(atomic_read_unchecked(&rdtp->dynticks) & 0x1)) {
100439 smp_mb__before_atomic(); /* Force delay from prior write. */
100440- atomic_inc(&rdtp->dynticks);
100441+ atomic_inc_unchecked(&rdtp->dynticks);
100442 /* atomic_inc() before later RCU read-side crit sects */
100443 smp_mb__after_atomic(); /* See above. */
100444- WARN_ON_ONCE(!(atomic_read(&rdtp->dynticks) & 0x1));
100445+ WARN_ON_ONCE(!(atomic_read_unchecked(&rdtp->dynticks) & 0x1));
100446 incby = 1;
100447 }
100448 rdtp->dynticks_nmi_nesting += incby;
100449@@ -870,7 +870,7 @@ void rcu_nmi_exit(void)
100450 * to us!)
100451 */
100452 WARN_ON_ONCE(rdtp->dynticks_nmi_nesting <= 0);
100453- WARN_ON_ONCE(!(atomic_read(&rdtp->dynticks) & 0x1));
100454+ WARN_ON_ONCE(!(atomic_read_unchecked(&rdtp->dynticks) & 0x1));
100455
100456 /*
100457 * If the nesting level is not 1, the CPU wasn't RCU-idle, so
100458@@ -885,9 +885,9 @@ void rcu_nmi_exit(void)
100459 rdtp->dynticks_nmi_nesting = 0;
100460 /* CPUs seeing atomic_inc() must see prior RCU read-side crit sects */
100461 smp_mb__before_atomic(); /* See above. */
100462- atomic_inc(&rdtp->dynticks);
100463+ atomic_inc_unchecked(&rdtp->dynticks);
100464 smp_mb__after_atomic(); /* Force delay to next write. */
100465- WARN_ON_ONCE(atomic_read(&rdtp->dynticks) & 0x1);
100466+ WARN_ON_ONCE(atomic_read_unchecked(&rdtp->dynticks) & 0x1);
100467 }
100468
100469 /**
100470@@ -900,7 +900,7 @@ void rcu_nmi_exit(void)
100471 */
100472 bool notrace __rcu_is_watching(void)
100473 {
100474- return atomic_read(this_cpu_ptr(&rcu_dynticks.dynticks)) & 0x1;
100475+ return atomic_read_unchecked(this_cpu_ptr(&rcu_dynticks.dynticks)) & 0x1;
100476 }
100477
100478 /**
100479@@ -983,7 +983,7 @@ static int rcu_is_cpu_rrupt_from_idle(void)
100480 static int dyntick_save_progress_counter(struct rcu_data *rdp,
100481 bool *isidle, unsigned long *maxj)
100482 {
100483- rdp->dynticks_snap = atomic_add_return(0, &rdp->dynticks->dynticks);
100484+ rdp->dynticks_snap = atomic_add_return_unchecked(0, &rdp->dynticks->dynticks);
100485 rcu_sysidle_check_cpu(rdp, isidle, maxj);
100486 if ((rdp->dynticks_snap & 0x1) == 0) {
100487 trace_rcu_fqs(rdp->rsp->name, rdp->gpnum, rdp->cpu, TPS("dti"));
100488@@ -991,7 +991,7 @@ static int dyntick_save_progress_counter(struct rcu_data *rdp,
100489 } else {
100490 if (ULONG_CMP_LT(ACCESS_ONCE(rdp->gpnum) + ULONG_MAX / 4,
100491 rdp->mynode->gpnum))
100492- ACCESS_ONCE(rdp->gpwrap) = true;
100493+ ACCESS_ONCE_RW(rdp->gpwrap) = true;
100494 return 0;
100495 }
100496 }
100497@@ -1009,7 +1009,7 @@ static int rcu_implicit_dynticks_qs(struct rcu_data *rdp,
100498 int *rcrmp;
100499 unsigned int snap;
100500
100501- curr = (unsigned int)atomic_add_return(0, &rdp->dynticks->dynticks);
100502+ curr = (unsigned int)atomic_add_return_unchecked(0, &rdp->dynticks->dynticks);
100503 snap = (unsigned int)rdp->dynticks_snap;
100504
100505 /*
100506@@ -1072,10 +1072,10 @@ static int rcu_implicit_dynticks_qs(struct rcu_data *rdp,
100507 rdp->rsp->gp_start + jiffies_till_sched_qs) ||
100508 ULONG_CMP_GE(jiffies, rdp->rsp->jiffies_resched)) {
100509 if (!(ACCESS_ONCE(*rcrmp) & rdp->rsp->flavor_mask)) {
100510- ACCESS_ONCE(rdp->cond_resched_completed) =
100511+ ACCESS_ONCE_RW(rdp->cond_resched_completed) =
100512 ACCESS_ONCE(rdp->mynode->completed);
100513 smp_mb(); /* ->cond_resched_completed before *rcrmp. */
100514- ACCESS_ONCE(*rcrmp) =
100515+ ACCESS_ONCE_RW(*rcrmp) =
100516 ACCESS_ONCE(*rcrmp) + rdp->rsp->flavor_mask;
100517 resched_cpu(rdp->cpu); /* Force CPU into scheduler. */
100518 rdp->rsp->jiffies_resched += 5; /* Enable beating. */
100519@@ -1097,7 +1097,7 @@ static void record_gp_stall_check_time(struct rcu_state *rsp)
100520 rsp->gp_start = j;
100521 smp_wmb(); /* Record start time before stall time. */
100522 j1 = rcu_jiffies_till_stall_check();
100523- ACCESS_ONCE(rsp->jiffies_stall) = j + j1;
100524+ ACCESS_ONCE_RW(rsp->jiffies_stall) = j + j1;
100525 rsp->jiffies_resched = j + j1 / 2;
100526 rsp->n_force_qs_gpstart = ACCESS_ONCE(rsp->n_force_qs);
100527 }
100528@@ -1156,7 +1156,7 @@ static void print_other_cpu_stall(struct rcu_state *rsp, unsigned long gpnum)
100529 raw_spin_unlock_irqrestore(&rnp->lock, flags);
100530 return;
100531 }
100532- ACCESS_ONCE(rsp->jiffies_stall) = jiffies + 3 * rcu_jiffies_till_stall_check() + 3;
100533+ ACCESS_ONCE_RW(rsp->jiffies_stall) = jiffies + 3 * rcu_jiffies_till_stall_check() + 3;
100534 raw_spin_unlock_irqrestore(&rnp->lock, flags);
100535
100536 /*
100537@@ -1240,7 +1240,7 @@ static void print_cpu_stall(struct rcu_state *rsp)
100538
100539 raw_spin_lock_irqsave(&rnp->lock, flags);
100540 if (ULONG_CMP_GE(jiffies, ACCESS_ONCE(rsp->jiffies_stall)))
100541- ACCESS_ONCE(rsp->jiffies_stall) = jiffies +
100542+ ACCESS_ONCE_RW(rsp->jiffies_stall) = jiffies +
100543 3 * rcu_jiffies_till_stall_check() + 3;
100544 raw_spin_unlock_irqrestore(&rnp->lock, flags);
100545
100546@@ -1324,7 +1324,7 @@ void rcu_cpu_stall_reset(void)
100547 struct rcu_state *rsp;
100548
100549 for_each_rcu_flavor(rsp)
100550- ACCESS_ONCE(rsp->jiffies_stall) = jiffies + ULONG_MAX / 2;
100551+ ACCESS_ONCE_RW(rsp->jiffies_stall) = jiffies + ULONG_MAX / 2;
100552 }
100553
100554 /*
100555@@ -1671,7 +1671,7 @@ static bool __note_gp_changes(struct rcu_state *rsp, struct rcu_node *rnp,
100556 rdp->rcu_qs_ctr_snap = __this_cpu_read(rcu_qs_ctr);
100557 rdp->qs_pending = !!(rnp->qsmask & rdp->grpmask);
100558 zero_cpu_stall_ticks(rdp);
100559- ACCESS_ONCE(rdp->gpwrap) = false;
100560+ ACCESS_ONCE_RW(rdp->gpwrap) = false;
100561 }
100562 return ret;
100563 }
100564@@ -1706,7 +1706,7 @@ static int rcu_gp_init(struct rcu_state *rsp)
100565 struct rcu_data *rdp;
100566 struct rcu_node *rnp = rcu_get_root(rsp);
100567
100568- ACCESS_ONCE(rsp->gp_activity) = jiffies;
100569+ ACCESS_ONCE_RW(rsp->gp_activity) = jiffies;
100570 rcu_bind_gp_kthread();
100571 raw_spin_lock_irq(&rnp->lock);
100572 smp_mb__after_unlock_lock();
100573@@ -1715,7 +1715,7 @@ static int rcu_gp_init(struct rcu_state *rsp)
100574 raw_spin_unlock_irq(&rnp->lock);
100575 return 0;
100576 }
100577- ACCESS_ONCE(rsp->gp_flags) = 0; /* Clear all flags: New grace period. */
100578+ ACCESS_ONCE_RW(rsp->gp_flags) = 0; /* Clear all flags: New grace period. */
100579
100580 if (WARN_ON_ONCE(rcu_gp_in_progress(rsp))) {
100581 /*
100582@@ -1756,9 +1756,9 @@ static int rcu_gp_init(struct rcu_state *rsp)
100583 rdp = this_cpu_ptr(rsp->rda);
100584 rcu_preempt_check_blocked_tasks(rnp);
100585 rnp->qsmask = rnp->qsmaskinit;
100586- ACCESS_ONCE(rnp->gpnum) = rsp->gpnum;
100587+ ACCESS_ONCE_RW(rnp->gpnum) = rsp->gpnum;
100588 WARN_ON_ONCE(rnp->completed != rsp->completed);
100589- ACCESS_ONCE(rnp->completed) = rsp->completed;
100590+ ACCESS_ONCE_RW(rnp->completed) = rsp->completed;
100591 if (rnp == rdp->mynode)
100592 (void)__note_gp_changes(rsp, rnp, rdp);
100593 rcu_preempt_boost_start_gp(rnp);
100594@@ -1767,7 +1767,7 @@ static int rcu_gp_init(struct rcu_state *rsp)
100595 rnp->grphi, rnp->qsmask);
100596 raw_spin_unlock_irq(&rnp->lock);
100597 cond_resched_rcu_qs();
100598- ACCESS_ONCE(rsp->gp_activity) = jiffies;
100599+ ACCESS_ONCE_RW(rsp->gp_activity) = jiffies;
100600 }
100601
100602 mutex_unlock(&rsp->onoff_mutex);
100603@@ -1784,7 +1784,7 @@ static int rcu_gp_fqs(struct rcu_state *rsp, int fqs_state_in)
100604 unsigned long maxj;
100605 struct rcu_node *rnp = rcu_get_root(rsp);
100606
100607- ACCESS_ONCE(rsp->gp_activity) = jiffies;
100608+ ACCESS_ONCE_RW(rsp->gp_activity) = jiffies;
100609 rsp->n_force_qs++;
100610 if (fqs_state == RCU_SAVE_DYNTICK) {
100611 /* Collect dyntick-idle snapshots. */
100612@@ -1805,7 +1805,7 @@ static int rcu_gp_fqs(struct rcu_state *rsp, int fqs_state_in)
100613 if (ACCESS_ONCE(rsp->gp_flags) & RCU_GP_FLAG_FQS) {
100614 raw_spin_lock_irq(&rnp->lock);
100615 smp_mb__after_unlock_lock();
100616- ACCESS_ONCE(rsp->gp_flags) =
100617+ ACCESS_ONCE_RW(rsp->gp_flags) =
100618 ACCESS_ONCE(rsp->gp_flags) & ~RCU_GP_FLAG_FQS;
100619 raw_spin_unlock_irq(&rnp->lock);
100620 }
100621@@ -1823,7 +1823,7 @@ static void rcu_gp_cleanup(struct rcu_state *rsp)
100622 struct rcu_data *rdp;
100623 struct rcu_node *rnp = rcu_get_root(rsp);
100624
100625- ACCESS_ONCE(rsp->gp_activity) = jiffies;
100626+ ACCESS_ONCE_RW(rsp->gp_activity) = jiffies;
100627 raw_spin_lock_irq(&rnp->lock);
100628 smp_mb__after_unlock_lock();
100629 gp_duration = jiffies - rsp->gp_start;
100630@@ -1852,7 +1852,7 @@ static void rcu_gp_cleanup(struct rcu_state *rsp)
100631 rcu_for_each_node_breadth_first(rsp, rnp) {
100632 raw_spin_lock_irq(&rnp->lock);
100633 smp_mb__after_unlock_lock();
100634- ACCESS_ONCE(rnp->completed) = rsp->gpnum;
100635+ ACCESS_ONCE_RW(rnp->completed) = rsp->gpnum;
100636 rdp = this_cpu_ptr(rsp->rda);
100637 if (rnp == rdp->mynode)
100638 needgp = __note_gp_changes(rsp, rnp, rdp) || needgp;
100639@@ -1860,7 +1860,7 @@ static void rcu_gp_cleanup(struct rcu_state *rsp)
100640 nocb += rcu_future_gp_cleanup(rsp, rnp);
100641 raw_spin_unlock_irq(&rnp->lock);
100642 cond_resched_rcu_qs();
100643- ACCESS_ONCE(rsp->gp_activity) = jiffies;
100644+ ACCESS_ONCE_RW(rsp->gp_activity) = jiffies;
100645 }
100646 rnp = rcu_get_root(rsp);
100647 raw_spin_lock_irq(&rnp->lock);
100648@@ -1868,14 +1868,14 @@ static void rcu_gp_cleanup(struct rcu_state *rsp)
100649 rcu_nocb_gp_set(rnp, nocb);
100650
100651 /* Declare grace period done. */
100652- ACCESS_ONCE(rsp->completed) = rsp->gpnum;
100653+ ACCESS_ONCE_RW(rsp->completed) = rsp->gpnum;
100654 trace_rcu_grace_period(rsp->name, rsp->completed, TPS("end"));
100655 rsp->fqs_state = RCU_GP_IDLE;
100656 rdp = this_cpu_ptr(rsp->rda);
100657 /* Advance CBs to reduce false positives below. */
100658 needgp = rcu_advance_cbs(rsp, rnp, rdp) || needgp;
100659 if (needgp || cpu_needs_another_gp(rsp, rdp)) {
100660- ACCESS_ONCE(rsp->gp_flags) = RCU_GP_FLAG_INIT;
100661+ ACCESS_ONCE_RW(rsp->gp_flags) = RCU_GP_FLAG_INIT;
100662 trace_rcu_grace_period(rsp->name,
100663 ACCESS_ONCE(rsp->gpnum),
100664 TPS("newreq"));
100665@@ -1910,7 +1910,7 @@ static int __noreturn rcu_gp_kthread(void *arg)
100666 if (rcu_gp_init(rsp))
100667 break;
100668 cond_resched_rcu_qs();
100669- ACCESS_ONCE(rsp->gp_activity) = jiffies;
100670+ ACCESS_ONCE_RW(rsp->gp_activity) = jiffies;
100671 WARN_ON(signal_pending(current));
100672 trace_rcu_grace_period(rsp->name,
100673 ACCESS_ONCE(rsp->gpnum),
100674@@ -1954,11 +1954,11 @@ static int __noreturn rcu_gp_kthread(void *arg)
100675 ACCESS_ONCE(rsp->gpnum),
100676 TPS("fqsend"));
100677 cond_resched_rcu_qs();
100678- ACCESS_ONCE(rsp->gp_activity) = jiffies;
100679+ ACCESS_ONCE_RW(rsp->gp_activity) = jiffies;
100680 } else {
100681 /* Deal with stray signal. */
100682 cond_resched_rcu_qs();
100683- ACCESS_ONCE(rsp->gp_activity) = jiffies;
100684+ ACCESS_ONCE_RW(rsp->gp_activity) = jiffies;
100685 WARN_ON(signal_pending(current));
100686 trace_rcu_grace_period(rsp->name,
100687 ACCESS_ONCE(rsp->gpnum),
100688@@ -2003,7 +2003,7 @@ rcu_start_gp_advanced(struct rcu_state *rsp, struct rcu_node *rnp,
100689 */
100690 return false;
100691 }
100692- ACCESS_ONCE(rsp->gp_flags) = RCU_GP_FLAG_INIT;
100693+ ACCESS_ONCE_RW(rsp->gp_flags) = RCU_GP_FLAG_INIT;
100694 trace_rcu_grace_period(rsp->name, ACCESS_ONCE(rsp->gpnum),
100695 TPS("newreq"));
100696
100697@@ -2228,7 +2228,7 @@ rcu_send_cbs_to_orphanage(int cpu, struct rcu_state *rsp,
100698 rsp->qlen += rdp->qlen;
100699 rdp->n_cbs_orphaned += rdp->qlen;
100700 rdp->qlen_lazy = 0;
100701- ACCESS_ONCE(rdp->qlen) = 0;
100702+ ACCESS_ONCE_RW(rdp->qlen) = 0;
100703 }
100704
100705 /*
100706@@ -2490,7 +2490,7 @@ static void rcu_do_batch(struct rcu_state *rsp, struct rcu_data *rdp)
100707 }
100708 smp_mb(); /* List handling before counting for rcu_barrier(). */
100709 rdp->qlen_lazy -= count_lazy;
100710- ACCESS_ONCE(rdp->qlen) = rdp->qlen - count;
100711+ ACCESS_ONCE_RW(rdp->qlen) = rdp->qlen - count;
100712 rdp->n_cbs_invoked += count;
100713
100714 /* Reinstate batch limit if we have worked down the excess. */
100715@@ -2647,7 +2647,7 @@ static void force_quiescent_state(struct rcu_state *rsp)
100716 raw_spin_unlock_irqrestore(&rnp_old->lock, flags);
100717 return; /* Someone beat us to it. */
100718 }
100719- ACCESS_ONCE(rsp->gp_flags) =
100720+ ACCESS_ONCE_RW(rsp->gp_flags) =
100721 ACCESS_ONCE(rsp->gp_flags) | RCU_GP_FLAG_FQS;
100722 raw_spin_unlock_irqrestore(&rnp_old->lock, flags);
100723 rcu_gp_kthread_wake(rsp);
100724@@ -2693,7 +2693,7 @@ __rcu_process_callbacks(struct rcu_state *rsp)
100725 /*
100726 * Do RCU core processing for the current CPU.
100727 */
100728-static void rcu_process_callbacks(struct softirq_action *unused)
100729+static void rcu_process_callbacks(void)
100730 {
100731 struct rcu_state *rsp;
100732
100733@@ -2805,7 +2805,7 @@ __call_rcu(struct rcu_head *head, void (*func)(struct rcu_head *rcu),
100734 WARN_ON_ONCE((unsigned long)head & 0x1); /* Misaligned rcu_head! */
100735 if (debug_rcu_head_queue(head)) {
100736 /* Probable double call_rcu(), so leak the callback. */
100737- ACCESS_ONCE(head->func) = rcu_leak_callback;
100738+ ACCESS_ONCE_RW(head->func) = rcu_leak_callback;
100739 WARN_ONCE(1, "__call_rcu(): Leaked duplicate callback\n");
100740 return;
100741 }
100742@@ -2833,7 +2833,7 @@ __call_rcu(struct rcu_head *head, void (*func)(struct rcu_head *rcu),
100743 local_irq_restore(flags);
100744 return;
100745 }
100746- ACCESS_ONCE(rdp->qlen) = rdp->qlen + 1;
100747+ ACCESS_ONCE_RW(rdp->qlen) = rdp->qlen + 1;
100748 if (lazy)
100749 rdp->qlen_lazy++;
100750 else
100751@@ -3106,11 +3106,11 @@ void synchronize_sched_expedited(void)
100752 * counter wrap on a 32-bit system. Quite a few more CPUs would of
100753 * course be required on a 64-bit system.
100754 */
100755- if (ULONG_CMP_GE((ulong)atomic_long_read(&rsp->expedited_start),
100756+ if (ULONG_CMP_GE((ulong)atomic_long_read_unchecked(&rsp->expedited_start),
100757 (ulong)atomic_long_read(&rsp->expedited_done) +
100758 ULONG_MAX / 8)) {
100759 synchronize_sched();
100760- atomic_long_inc(&rsp->expedited_wrap);
100761+ atomic_long_inc_unchecked(&rsp->expedited_wrap);
100762 return;
100763 }
100764
100765@@ -3118,12 +3118,12 @@ void synchronize_sched_expedited(void)
100766 * Take a ticket. Note that atomic_inc_return() implies a
100767 * full memory barrier.
100768 */
100769- snap = atomic_long_inc_return(&rsp->expedited_start);
100770+ snap = atomic_long_inc_return_unchecked(&rsp->expedited_start);
100771 firstsnap = snap;
100772 if (!try_get_online_cpus()) {
100773 /* CPU hotplug operation in flight, fall back to normal GP. */
100774 wait_rcu_gp(call_rcu_sched);
100775- atomic_long_inc(&rsp->expedited_normal);
100776+ atomic_long_inc_unchecked(&rsp->expedited_normal);
100777 return;
100778 }
100779 WARN_ON_ONCE(cpu_is_offline(raw_smp_processor_id()));
100780@@ -3136,7 +3136,7 @@ void synchronize_sched_expedited(void)
100781 for_each_cpu(cpu, cm) {
100782 struct rcu_dynticks *rdtp = &per_cpu(rcu_dynticks, cpu);
100783
100784- if (!(atomic_add_return(0, &rdtp->dynticks) & 0x1))
100785+ if (!(atomic_add_return_unchecked(0, &rdtp->dynticks) & 0x1))
100786 cpumask_clear_cpu(cpu, cm);
100787 }
100788 if (cpumask_weight(cm) == 0)
100789@@ -3151,14 +3151,14 @@ void synchronize_sched_expedited(void)
100790 synchronize_sched_expedited_cpu_stop,
100791 NULL) == -EAGAIN) {
100792 put_online_cpus();
100793- atomic_long_inc(&rsp->expedited_tryfail);
100794+ atomic_long_inc_unchecked(&rsp->expedited_tryfail);
100795
100796 /* Check to see if someone else did our work for us. */
100797 s = atomic_long_read(&rsp->expedited_done);
100798 if (ULONG_CMP_GE((ulong)s, (ulong)firstsnap)) {
100799 /* ensure test happens before caller kfree */
100800 smp_mb__before_atomic(); /* ^^^ */
100801- atomic_long_inc(&rsp->expedited_workdone1);
100802+ atomic_long_inc_unchecked(&rsp->expedited_workdone1);
100803 free_cpumask_var(cm);
100804 return;
100805 }
100806@@ -3168,7 +3168,7 @@ void synchronize_sched_expedited(void)
100807 udelay(trycount * num_online_cpus());
100808 } else {
100809 wait_rcu_gp(call_rcu_sched);
100810- atomic_long_inc(&rsp->expedited_normal);
100811+ atomic_long_inc_unchecked(&rsp->expedited_normal);
100812 free_cpumask_var(cm);
100813 return;
100814 }
100815@@ -3178,7 +3178,7 @@ void synchronize_sched_expedited(void)
100816 if (ULONG_CMP_GE((ulong)s, (ulong)firstsnap)) {
100817 /* ensure test happens before caller kfree */
100818 smp_mb__before_atomic(); /* ^^^ */
100819- atomic_long_inc(&rsp->expedited_workdone2);
100820+ atomic_long_inc_unchecked(&rsp->expedited_workdone2);
100821 free_cpumask_var(cm);
100822 return;
100823 }
100824@@ -3193,14 +3193,14 @@ void synchronize_sched_expedited(void)
100825 if (!try_get_online_cpus()) {
100826 /* CPU hotplug operation in flight, use normal GP. */
100827 wait_rcu_gp(call_rcu_sched);
100828- atomic_long_inc(&rsp->expedited_normal);
100829+ atomic_long_inc_unchecked(&rsp->expedited_normal);
100830 free_cpumask_var(cm);
100831 return;
100832 }
100833- snap = atomic_long_read(&rsp->expedited_start);
100834+ snap = atomic_long_read_unchecked(&rsp->expedited_start);
100835 smp_mb(); /* ensure read is before try_stop_cpus(). */
100836 }
100837- atomic_long_inc(&rsp->expedited_stoppedcpus);
100838+ atomic_long_inc_unchecked(&rsp->expedited_stoppedcpus);
100839
100840 all_cpus_idle:
100841 free_cpumask_var(cm);
100842@@ -3212,16 +3212,16 @@ all_cpus_idle:
100843 * than we did already did their update.
100844 */
100845 do {
100846- atomic_long_inc(&rsp->expedited_done_tries);
100847+ atomic_long_inc_unchecked(&rsp->expedited_done_tries);
100848 s = atomic_long_read(&rsp->expedited_done);
100849 if (ULONG_CMP_GE((ulong)s, (ulong)snap)) {
100850 /* ensure test happens before caller kfree */
100851 smp_mb__before_atomic(); /* ^^^ */
100852- atomic_long_inc(&rsp->expedited_done_lost);
100853+ atomic_long_inc_unchecked(&rsp->expedited_done_lost);
100854 break;
100855 }
100856 } while (atomic_long_cmpxchg(&rsp->expedited_done, s, snap) != s);
100857- atomic_long_inc(&rsp->expedited_done_exit);
100858+ atomic_long_inc_unchecked(&rsp->expedited_done_exit);
100859
100860 put_online_cpus();
100861 }
100862@@ -3431,7 +3431,7 @@ static void _rcu_barrier(struct rcu_state *rsp)
100863 * ACCESS_ONCE() to prevent the compiler from speculating
100864 * the increment to precede the early-exit check.
100865 */
100866- ACCESS_ONCE(rsp->n_barrier_done) = rsp->n_barrier_done + 1;
100867+ ACCESS_ONCE_RW(rsp->n_barrier_done) = rsp->n_barrier_done + 1;
100868 WARN_ON_ONCE((rsp->n_barrier_done & 0x1) != 1);
100869 _rcu_barrier_trace(rsp, "Inc1", -1, rsp->n_barrier_done);
100870 smp_mb(); /* Order ->n_barrier_done increment with below mechanism. */
100871@@ -3487,7 +3487,7 @@ static void _rcu_barrier(struct rcu_state *rsp)
100872
100873 /* Increment ->n_barrier_done to prevent duplicate work. */
100874 smp_mb(); /* Keep increment after above mechanism. */
100875- ACCESS_ONCE(rsp->n_barrier_done) = rsp->n_barrier_done + 1;
100876+ ACCESS_ONCE_RW(rsp->n_barrier_done) = rsp->n_barrier_done + 1;
100877 WARN_ON_ONCE((rsp->n_barrier_done & 0x1) != 0);
100878 _rcu_barrier_trace(rsp, "Inc2", -1, rsp->n_barrier_done);
100879 smp_mb(); /* Keep increment before caller's subsequent code. */
100880@@ -3532,7 +3532,7 @@ rcu_boot_init_percpu_data(int cpu, struct rcu_state *rsp)
100881 rdp->grpmask = 1UL << (cpu - rdp->mynode->grplo);
100882 rdp->dynticks = &per_cpu(rcu_dynticks, cpu);
100883 WARN_ON_ONCE(rdp->dynticks->dynticks_nesting != DYNTICK_TASK_EXIT_IDLE);
100884- WARN_ON_ONCE(atomic_read(&rdp->dynticks->dynticks) != 1);
100885+ WARN_ON_ONCE(atomic_read_unchecked(&rdp->dynticks->dynticks) != 1);
100886 rdp->cpu = cpu;
100887 rdp->rsp = rsp;
100888 rcu_boot_init_nocb_percpu_data(rdp);
100889@@ -3565,8 +3565,8 @@ rcu_init_percpu_data(int cpu, struct rcu_state *rsp)
100890 init_callback_list(rdp); /* Re-enable callbacks on this CPU. */
100891 rdp->dynticks->dynticks_nesting = DYNTICK_TASK_EXIT_IDLE;
100892 rcu_sysidle_init_percpu_data(rdp->dynticks);
100893- atomic_set(&rdp->dynticks->dynticks,
100894- (atomic_read(&rdp->dynticks->dynticks) & ~0x1) + 1);
100895+ atomic_set_unchecked(&rdp->dynticks->dynticks,
100896+ (atomic_read_unchecked(&rdp->dynticks->dynticks) & ~0x1) + 1);
100897 raw_spin_unlock(&rnp->lock); /* irqs remain disabled. */
100898
100899 /* Add CPU to rcu_node bitmasks. */
100900diff --git a/kernel/rcu/tree.h b/kernel/rcu/tree.h
100901index 119de39..f07d31a 100644
100902--- a/kernel/rcu/tree.h
100903+++ b/kernel/rcu/tree.h
100904@@ -86,11 +86,11 @@ struct rcu_dynticks {
100905 long long dynticks_nesting; /* Track irq/process nesting level. */
100906 /* Process level is worth LLONG_MAX/2. */
100907 int dynticks_nmi_nesting; /* Track NMI nesting level. */
100908- atomic_t dynticks; /* Even value for idle, else odd. */
100909+ atomic_unchecked_t dynticks;/* Even value for idle, else odd. */
100910 #ifdef CONFIG_NO_HZ_FULL_SYSIDLE
100911 long long dynticks_idle_nesting;
100912 /* irq/process nesting level from idle. */
100913- atomic_t dynticks_idle; /* Even value for idle, else odd. */
100914+ atomic_unchecked_t dynticks_idle;/* Even value for idle, else odd. */
100915 /* "Idle" excludes userspace execution. */
100916 unsigned long dynticks_idle_jiffies;
100917 /* End of last non-NMI non-idle period. */
100918@@ -457,17 +457,17 @@ struct rcu_state {
100919 /* _rcu_barrier(). */
100920 /* End of fields guarded by barrier_mutex. */
100921
100922- atomic_long_t expedited_start; /* Starting ticket. */
100923- atomic_long_t expedited_done; /* Done ticket. */
100924- atomic_long_t expedited_wrap; /* # near-wrap incidents. */
100925- atomic_long_t expedited_tryfail; /* # acquisition failures. */
100926- atomic_long_t expedited_workdone1; /* # done by others #1. */
100927- atomic_long_t expedited_workdone2; /* # done by others #2. */
100928- atomic_long_t expedited_normal; /* # fallbacks to normal. */
100929- atomic_long_t expedited_stoppedcpus; /* # successful stop_cpus. */
100930- atomic_long_t expedited_done_tries; /* # tries to update _done. */
100931- atomic_long_t expedited_done_lost; /* # times beaten to _done. */
100932- atomic_long_t expedited_done_exit; /* # times exited _done loop. */
100933+ atomic_long_unchecked_t expedited_start; /* Starting ticket. */
100934+ atomic_long_t expedited_done; /* Done ticket. */
100935+ atomic_long_unchecked_t expedited_wrap; /* # near-wrap incidents. */
100936+ atomic_long_unchecked_t expedited_tryfail; /* # acquisition failures. */
100937+ atomic_long_unchecked_t expedited_workdone1; /* # done by others #1. */
100938+ atomic_long_unchecked_t expedited_workdone2; /* # done by others #2. */
100939+ atomic_long_unchecked_t expedited_normal; /* # fallbacks to normal. */
100940+ atomic_long_unchecked_t expedited_stoppedcpus; /* # successful stop_cpus. */
100941+ atomic_long_unchecked_t expedited_done_tries; /* # tries to update _done. */
100942+ atomic_long_unchecked_t expedited_done_lost; /* # times beaten to _done. */
100943+ atomic_long_unchecked_t expedited_done_exit; /* # times exited _done loop. */
100944
100945 unsigned long jiffies_force_qs; /* Time at which to invoke */
100946 /* force_quiescent_state(). */
100947diff --git a/kernel/rcu/tree_plugin.h b/kernel/rcu/tree_plugin.h
100948index 0a571e9..fbfd611 100644
100949--- a/kernel/rcu/tree_plugin.h
100950+++ b/kernel/rcu/tree_plugin.h
100951@@ -619,7 +619,7 @@ static int rcu_preempted_readers_exp(struct rcu_node *rnp)
100952 static int sync_rcu_preempt_exp_done(struct rcu_node *rnp)
100953 {
100954 return !rcu_preempted_readers_exp(rnp) &&
100955- ACCESS_ONCE(rnp->expmask) == 0;
100956+ ACCESS_ONCE_RW(rnp->expmask) == 0;
100957 }
100958
100959 /*
100960@@ -780,7 +780,7 @@ void synchronize_rcu_expedited(void)
100961
100962 /* Clean up and exit. */
100963 smp_mb(); /* ensure expedited GP seen before counter increment. */
100964- ACCESS_ONCE(sync_rcu_preempt_exp_count) =
100965+ ACCESS_ONCE_RW(sync_rcu_preempt_exp_count) =
100966 sync_rcu_preempt_exp_count + 1;
100967 unlock_mb_ret:
100968 mutex_unlock(&sync_rcu_preempt_exp_mutex);
100969@@ -1290,7 +1290,7 @@ static void rcu_boost_kthread_setaffinity(struct rcu_node *rnp, int outgoingcpu)
100970 free_cpumask_var(cm);
100971 }
100972
100973-static struct smp_hotplug_thread rcu_cpu_thread_spec = {
100974+static struct smp_hotplug_thread rcu_cpu_thread_spec __read_only = {
100975 .store = &rcu_cpu_kthread_task,
100976 .thread_should_run = rcu_cpu_kthread_should_run,
100977 .thread_fn = rcu_cpu_kthread,
100978@@ -1761,7 +1761,7 @@ static void print_cpu_stall_info(struct rcu_state *rsp, int cpu)
100979 print_cpu_stall_fast_no_hz(fast_no_hz, cpu);
100980 pr_err("\t%d: (%lu %s) idle=%03x/%llx/%d softirq=%u/%u fqs=%ld %s\n",
100981 cpu, ticks_value, ticks_title,
100982- atomic_read(&rdtp->dynticks) & 0xfff,
100983+ atomic_read_unchecked(&rdtp->dynticks) & 0xfff,
100984 rdtp->dynticks_nesting, rdtp->dynticks_nmi_nesting,
100985 rdp->softirq_snap, kstat_softirqs_cpu(RCU_SOFTIRQ, cpu),
100986 ACCESS_ONCE(rsp->n_force_qs) - rsp->n_force_qs_gpstart,
100987@@ -1906,7 +1906,7 @@ static void wake_nocb_leader(struct rcu_data *rdp, bool force)
100988 return;
100989 if (ACCESS_ONCE(rdp_leader->nocb_leader_sleep) || force) {
100990 /* Prior smp_mb__after_atomic() orders against prior enqueue. */
100991- ACCESS_ONCE(rdp_leader->nocb_leader_sleep) = false;
100992+ ACCESS_ONCE_RW(rdp_leader->nocb_leader_sleep) = false;
100993 wake_up(&rdp_leader->nocb_wq);
100994 }
100995 }
100996@@ -1978,7 +1978,7 @@ static void __call_rcu_nocb_enqueue(struct rcu_data *rdp,
100997 atomic_long_add(rhcount, &rdp->nocb_q_count);
100998 /* rcu_barrier() relies on ->nocb_q_count add before xchg. */
100999 old_rhpp = xchg(&rdp->nocb_tail, rhtp);
101000- ACCESS_ONCE(*old_rhpp) = rhp;
101001+ ACCESS_ONCE_RW(*old_rhpp) = rhp;
101002 atomic_long_add(rhcount_lazy, &rdp->nocb_q_count_lazy);
101003 smp_mb__after_atomic(); /* Store *old_rhpp before _wake test. */
101004
101005@@ -2167,7 +2167,7 @@ wait_again:
101006 continue; /* No CBs here, try next follower. */
101007
101008 /* Move callbacks to wait-for-GP list, which is empty. */
101009- ACCESS_ONCE(rdp->nocb_head) = NULL;
101010+ ACCESS_ONCE_RW(rdp->nocb_head) = NULL;
101011 rdp->nocb_gp_tail = xchg(&rdp->nocb_tail, &rdp->nocb_head);
101012 gotcbs = true;
101013 }
101014@@ -2288,7 +2288,7 @@ static int rcu_nocb_kthread(void *arg)
101015 list = ACCESS_ONCE(rdp->nocb_follower_head);
101016 BUG_ON(!list);
101017 trace_rcu_nocb_wake(rdp->rsp->name, rdp->cpu, "WokeNonEmpty");
101018- ACCESS_ONCE(rdp->nocb_follower_head) = NULL;
101019+ ACCESS_ONCE_RW(rdp->nocb_follower_head) = NULL;
101020 tail = xchg(&rdp->nocb_follower_tail, &rdp->nocb_follower_head);
101021
101022 /* Each pass through the following loop invokes a callback. */
101023@@ -2338,7 +2338,7 @@ static void do_nocb_deferred_wakeup(struct rcu_data *rdp)
101024 if (!rcu_nocb_need_deferred_wakeup(rdp))
101025 return;
101026 ndw = ACCESS_ONCE(rdp->nocb_defer_wakeup);
101027- ACCESS_ONCE(rdp->nocb_defer_wakeup) = RCU_NOGP_WAKE_NOT;
101028+ ACCESS_ONCE_RW(rdp->nocb_defer_wakeup) = RCU_NOGP_WAKE_NOT;
101029 wake_nocb_leader(rdp, ndw == RCU_NOGP_WAKE_FORCE);
101030 trace_rcu_nocb_wake(rdp->rsp->name, rdp->cpu, TPS("DeferredWake"));
101031 }
101032@@ -2461,7 +2461,7 @@ static void rcu_spawn_one_nocb_kthread(struct rcu_state *rsp, int cpu)
101033 t = kthread_run(rcu_nocb_kthread, rdp_spawn,
101034 "rcuo%c/%d", rsp->abbr, cpu);
101035 BUG_ON(IS_ERR(t));
101036- ACCESS_ONCE(rdp_spawn->nocb_kthread) = t;
101037+ ACCESS_ONCE_RW(rdp_spawn->nocb_kthread) = t;
101038 }
101039
101040 /*
101041@@ -2666,11 +2666,11 @@ static void rcu_sysidle_enter(int irq)
101042
101043 /* Record start of fully idle period. */
101044 j = jiffies;
101045- ACCESS_ONCE(rdtp->dynticks_idle_jiffies) = j;
101046+ ACCESS_ONCE_RW(rdtp->dynticks_idle_jiffies) = j;
101047 smp_mb__before_atomic();
101048- atomic_inc(&rdtp->dynticks_idle);
101049+ atomic_inc_unchecked(&rdtp->dynticks_idle);
101050 smp_mb__after_atomic();
101051- WARN_ON_ONCE(atomic_read(&rdtp->dynticks_idle) & 0x1);
101052+ WARN_ON_ONCE(atomic_read_unchecked(&rdtp->dynticks_idle) & 0x1);
101053 }
101054
101055 /*
101056@@ -2741,9 +2741,9 @@ static void rcu_sysidle_exit(int irq)
101057
101058 /* Record end of idle period. */
101059 smp_mb__before_atomic();
101060- atomic_inc(&rdtp->dynticks_idle);
101061+ atomic_inc_unchecked(&rdtp->dynticks_idle);
101062 smp_mb__after_atomic();
101063- WARN_ON_ONCE(!(atomic_read(&rdtp->dynticks_idle) & 0x1));
101064+ WARN_ON_ONCE(!(atomic_read_unchecked(&rdtp->dynticks_idle) & 0x1));
101065
101066 /*
101067 * If we are the timekeeping CPU, we are permitted to be non-idle
101068@@ -2788,7 +2788,7 @@ static void rcu_sysidle_check_cpu(struct rcu_data *rdp, bool *isidle,
101069 WARN_ON_ONCE(smp_processor_id() != tick_do_timer_cpu);
101070
101071 /* Pick up current idle and NMI-nesting counter and check. */
101072- cur = atomic_read(&rdtp->dynticks_idle);
101073+ cur = atomic_read_unchecked(&rdtp->dynticks_idle);
101074 if (cur & 0x1) {
101075 *isidle = false; /* We are not idle! */
101076 return;
101077@@ -2837,7 +2837,7 @@ static void rcu_sysidle(unsigned long j)
101078 case RCU_SYSIDLE_NOT:
101079
101080 /* First time all are idle, so note a short idle period. */
101081- ACCESS_ONCE(full_sysidle_state) = RCU_SYSIDLE_SHORT;
101082+ ACCESS_ONCE_RW(full_sysidle_state) = RCU_SYSIDLE_SHORT;
101083 break;
101084
101085 case RCU_SYSIDLE_SHORT:
101086@@ -2875,7 +2875,7 @@ static void rcu_sysidle_cancel(void)
101087 {
101088 smp_mb();
101089 if (full_sysidle_state > RCU_SYSIDLE_SHORT)
101090- ACCESS_ONCE(full_sysidle_state) = RCU_SYSIDLE_NOT;
101091+ ACCESS_ONCE_RW(full_sysidle_state) = RCU_SYSIDLE_NOT;
101092 }
101093
101094 /*
101095@@ -2927,7 +2927,7 @@ static void rcu_sysidle_cb(struct rcu_head *rhp)
101096 smp_mb(); /* grace period precedes setting inuse. */
101097
101098 rshp = container_of(rhp, struct rcu_sysidle_head, rh);
101099- ACCESS_ONCE(rshp->inuse) = 0;
101100+ ACCESS_ONCE_RW(rshp->inuse) = 0;
101101 }
101102
101103 /*
101104@@ -3080,7 +3080,7 @@ static void rcu_bind_gp_kthread(void)
101105 static void rcu_dynticks_task_enter(void)
101106 {
101107 #if defined(CONFIG_TASKS_RCU) && defined(CONFIG_NO_HZ_FULL)
101108- ACCESS_ONCE(current->rcu_tasks_idle_cpu) = smp_processor_id();
101109+ ACCESS_ONCE_RW(current->rcu_tasks_idle_cpu) = smp_processor_id();
101110 #endif /* #if defined(CONFIG_TASKS_RCU) && defined(CONFIG_NO_HZ_FULL) */
101111 }
101112
101113@@ -3088,6 +3088,6 @@ static void rcu_dynticks_task_enter(void)
101114 static void rcu_dynticks_task_exit(void)
101115 {
101116 #if defined(CONFIG_TASKS_RCU) && defined(CONFIG_NO_HZ_FULL)
101117- ACCESS_ONCE(current->rcu_tasks_idle_cpu) = -1;
101118+ ACCESS_ONCE_RW(current->rcu_tasks_idle_cpu) = -1;
101119 #endif /* #if defined(CONFIG_TASKS_RCU) && defined(CONFIG_NO_HZ_FULL) */
101120 }
101121diff --git a/kernel/rcu/tree_trace.c b/kernel/rcu/tree_trace.c
101122index fbb6240..f6c5097 100644
101123--- a/kernel/rcu/tree_trace.c
101124+++ b/kernel/rcu/tree_trace.c
101125@@ -125,7 +125,7 @@ static void print_one_rcu_data(struct seq_file *m, struct rcu_data *rdp)
101126 rdp->rcu_qs_ctr_snap == per_cpu(rcu_qs_ctr, rdp->cpu),
101127 rdp->qs_pending);
101128 seq_printf(m, " dt=%d/%llx/%d df=%lu",
101129- atomic_read(&rdp->dynticks->dynticks),
101130+ atomic_read_unchecked(&rdp->dynticks->dynticks),
101131 rdp->dynticks->dynticks_nesting,
101132 rdp->dynticks->dynticks_nmi_nesting,
101133 rdp->dynticks_fqs);
101134@@ -186,17 +186,17 @@ static int show_rcuexp(struct seq_file *m, void *v)
101135 struct rcu_state *rsp = (struct rcu_state *)m->private;
101136
101137 seq_printf(m, "s=%lu d=%lu w=%lu tf=%lu wd1=%lu wd2=%lu n=%lu sc=%lu dt=%lu dl=%lu dx=%lu\n",
101138- atomic_long_read(&rsp->expedited_start),
101139+ atomic_long_read_unchecked(&rsp->expedited_start),
101140 atomic_long_read(&rsp->expedited_done),
101141- atomic_long_read(&rsp->expedited_wrap),
101142- atomic_long_read(&rsp->expedited_tryfail),
101143- atomic_long_read(&rsp->expedited_workdone1),
101144- atomic_long_read(&rsp->expedited_workdone2),
101145- atomic_long_read(&rsp->expedited_normal),
101146- atomic_long_read(&rsp->expedited_stoppedcpus),
101147- atomic_long_read(&rsp->expedited_done_tries),
101148- atomic_long_read(&rsp->expedited_done_lost),
101149- atomic_long_read(&rsp->expedited_done_exit));
101150+ atomic_long_read_unchecked(&rsp->expedited_wrap),
101151+ atomic_long_read_unchecked(&rsp->expedited_tryfail),
101152+ atomic_long_read_unchecked(&rsp->expedited_workdone1),
101153+ atomic_long_read_unchecked(&rsp->expedited_workdone2),
101154+ atomic_long_read_unchecked(&rsp->expedited_normal),
101155+ atomic_long_read_unchecked(&rsp->expedited_stoppedcpus),
101156+ atomic_long_read_unchecked(&rsp->expedited_done_tries),
101157+ atomic_long_read_unchecked(&rsp->expedited_done_lost),
101158+ atomic_long_read_unchecked(&rsp->expedited_done_exit));
101159 return 0;
101160 }
101161
101162diff --git a/kernel/rcu/update.c b/kernel/rcu/update.c
101163index e0d31a3..f4dafe3 100644
101164--- a/kernel/rcu/update.c
101165+++ b/kernel/rcu/update.c
101166@@ -342,10 +342,10 @@ int rcu_jiffies_till_stall_check(void)
101167 * for CONFIG_RCU_CPU_STALL_TIMEOUT.
101168 */
101169 if (till_stall_check < 3) {
101170- ACCESS_ONCE(rcu_cpu_stall_timeout) = 3;
101171+ ACCESS_ONCE_RW(rcu_cpu_stall_timeout) = 3;
101172 till_stall_check = 3;
101173 } else if (till_stall_check > 300) {
101174- ACCESS_ONCE(rcu_cpu_stall_timeout) = 300;
101175+ ACCESS_ONCE_RW(rcu_cpu_stall_timeout) = 300;
101176 till_stall_check = 300;
101177 }
101178 return till_stall_check * HZ + RCU_STALL_DELAY_DELTA;
101179@@ -501,7 +501,7 @@ static void check_holdout_task(struct task_struct *t,
101180 !ACCESS_ONCE(t->on_rq) ||
101181 (IS_ENABLED(CONFIG_NO_HZ_FULL) &&
101182 !is_idle_task(t) && t->rcu_tasks_idle_cpu >= 0)) {
101183- ACCESS_ONCE(t->rcu_tasks_holdout) = false;
101184+ ACCESS_ONCE_RW(t->rcu_tasks_holdout) = false;
101185 list_del_init(&t->rcu_tasks_holdout_list);
101186 put_task_struct(t);
101187 return;
101188@@ -589,7 +589,7 @@ static int __noreturn rcu_tasks_kthread(void *arg)
101189 !is_idle_task(t)) {
101190 get_task_struct(t);
101191 t->rcu_tasks_nvcsw = ACCESS_ONCE(t->nvcsw);
101192- ACCESS_ONCE(t->rcu_tasks_holdout) = true;
101193+ ACCESS_ONCE_RW(t->rcu_tasks_holdout) = true;
101194 list_add(&t->rcu_tasks_holdout_list,
101195 &rcu_tasks_holdouts);
101196 }
101197@@ -686,7 +686,7 @@ static void rcu_spawn_tasks_kthread(void)
101198 t = kthread_run(rcu_tasks_kthread, NULL, "rcu_tasks_kthread");
101199 BUG_ON(IS_ERR(t));
101200 smp_mb(); /* Ensure others see full kthread. */
101201- ACCESS_ONCE(rcu_tasks_kthread_ptr) = t;
101202+ ACCESS_ONCE_RW(rcu_tasks_kthread_ptr) = t;
101203 mutex_unlock(&rcu_tasks_kthread_mutex);
101204 }
101205
101206diff --git a/kernel/resource.c b/kernel/resource.c
101207index 19f2357..ebe7f35 100644
101208--- a/kernel/resource.c
101209+++ b/kernel/resource.c
101210@@ -162,8 +162,18 @@ static const struct file_operations proc_iomem_operations = {
101211
101212 static int __init ioresources_init(void)
101213 {
101214+#ifdef CONFIG_GRKERNSEC_PROC_ADD
101215+#ifdef CONFIG_GRKERNSEC_PROC_USER
101216+ proc_create("ioports", S_IRUSR, NULL, &proc_ioports_operations);
101217+ proc_create("iomem", S_IRUSR, NULL, &proc_iomem_operations);
101218+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
101219+ proc_create("ioports", S_IRUSR | S_IRGRP, NULL, &proc_ioports_operations);
101220+ proc_create("iomem", S_IRUSR | S_IRGRP, NULL, &proc_iomem_operations);
101221+#endif
101222+#else
101223 proc_create("ioports", 0, NULL, &proc_ioports_operations);
101224 proc_create("iomem", 0, NULL, &proc_iomem_operations);
101225+#endif
101226 return 0;
101227 }
101228 __initcall(ioresources_init);
101229diff --git a/kernel/sched/auto_group.c b/kernel/sched/auto_group.c
101230index eae160d..c9aa22e 100644
101231--- a/kernel/sched/auto_group.c
101232+++ b/kernel/sched/auto_group.c
101233@@ -11,7 +11,7 @@
101234
101235 unsigned int __read_mostly sysctl_sched_autogroup_enabled = 1;
101236 static struct autogroup autogroup_default;
101237-static atomic_t autogroup_seq_nr;
101238+static atomic_unchecked_t autogroup_seq_nr;
101239
101240 void __init autogroup_init(struct task_struct *init_task)
101241 {
101242@@ -79,7 +79,7 @@ static inline struct autogroup *autogroup_create(void)
101243
101244 kref_init(&ag->kref);
101245 init_rwsem(&ag->lock);
101246- ag->id = atomic_inc_return(&autogroup_seq_nr);
101247+ ag->id = atomic_inc_return_unchecked(&autogroup_seq_nr);
101248 ag->tg = tg;
101249 #ifdef CONFIG_RT_GROUP_SCHED
101250 /*
101251diff --git a/kernel/sched/completion.c b/kernel/sched/completion.c
101252index 8d0f35d..c16360d 100644
101253--- a/kernel/sched/completion.c
101254+++ b/kernel/sched/completion.c
101255@@ -205,7 +205,7 @@ EXPORT_SYMBOL(wait_for_completion_interruptible);
101256 * Return: -ERESTARTSYS if interrupted, 0 if timed out, positive (at least 1,
101257 * or number of jiffies left till timeout) if completed.
101258 */
101259-long __sched
101260+long __sched __intentional_overflow(-1)
101261 wait_for_completion_interruptible_timeout(struct completion *x,
101262 unsigned long timeout)
101263 {
101264@@ -222,7 +222,7 @@ EXPORT_SYMBOL(wait_for_completion_interruptible_timeout);
101265 *
101266 * Return: -ERESTARTSYS if interrupted, 0 if completed.
101267 */
101268-int __sched wait_for_completion_killable(struct completion *x)
101269+int __sched __intentional_overflow(-1) wait_for_completion_killable(struct completion *x)
101270 {
101271 long t = wait_for_common(x, MAX_SCHEDULE_TIMEOUT, TASK_KILLABLE);
101272 if (t == -ERESTARTSYS)
101273@@ -243,7 +243,7 @@ EXPORT_SYMBOL(wait_for_completion_killable);
101274 * Return: -ERESTARTSYS if interrupted, 0 if timed out, positive (at least 1,
101275 * or number of jiffies left till timeout) if completed.
101276 */
101277-long __sched
101278+long __sched __intentional_overflow(-1)
101279 wait_for_completion_killable_timeout(struct completion *x,
101280 unsigned long timeout)
101281 {
101282diff --git a/kernel/sched/core.c b/kernel/sched/core.c
101283index f4da2cb..e44587b 100644
101284--- a/kernel/sched/core.c
101285+++ b/kernel/sched/core.c
101286@@ -1862,7 +1862,7 @@ void set_numabalancing_state(bool enabled)
101287 int sysctl_numa_balancing(struct ctl_table *table, int write,
101288 void __user *buffer, size_t *lenp, loff_t *ppos)
101289 {
101290- struct ctl_table t;
101291+ ctl_table_no_const t;
101292 int err;
101293 int state = numabalancing_enabled;
101294
101295@@ -2312,8 +2312,10 @@ context_switch(struct rq *rq, struct task_struct *prev,
101296 next->active_mm = oldmm;
101297 atomic_inc(&oldmm->mm_count);
101298 enter_lazy_tlb(oldmm, next);
101299- } else
101300+ } else {
101301 switch_mm(oldmm, mm, next);
101302+ populate_stack();
101303+ }
101304
101305 if (!prev->mm) {
101306 prev->active_mm = NULL;
101307@@ -3124,6 +3126,8 @@ int can_nice(const struct task_struct *p, const int nice)
101308 /* convert nice value [19,-20] to rlimit style value [1,40] */
101309 int nice_rlim = nice_to_rlimit(nice);
101310
101311+ gr_learn_resource(p, RLIMIT_NICE, nice_rlim, 1);
101312+
101313 return (nice_rlim <= task_rlimit(p, RLIMIT_NICE) ||
101314 capable(CAP_SYS_NICE));
101315 }
101316@@ -3150,7 +3154,8 @@ SYSCALL_DEFINE1(nice, int, increment)
101317 nice = task_nice(current) + increment;
101318
101319 nice = clamp_val(nice, MIN_NICE, MAX_NICE);
101320- if (increment < 0 && !can_nice(current, nice))
101321+ if (increment < 0 && (!can_nice(current, nice) ||
101322+ gr_handle_chroot_nice()))
101323 return -EPERM;
101324
101325 retval = security_task_setnice(current, nice);
101326@@ -3462,6 +3467,7 @@ recheck:
101327 if (policy != p->policy && !rlim_rtprio)
101328 return -EPERM;
101329
101330+ gr_learn_resource(p, RLIMIT_RTPRIO, attr->sched_priority, 1);
101331 /* can't increase priority */
101332 if (attr->sched_priority > p->rt_priority &&
101333 attr->sched_priority > rlim_rtprio)
101334@@ -4945,6 +4951,7 @@ void idle_task_exit(void)
101335
101336 if (mm != &init_mm) {
101337 switch_mm(mm, &init_mm, current);
101338+ populate_stack();
101339 finish_arch_post_lock_switch();
101340 }
101341 mmdrop(mm);
101342@@ -5040,7 +5047,7 @@ static void migrate_tasks(unsigned int dead_cpu)
101343
101344 #if defined(CONFIG_SCHED_DEBUG) && defined(CONFIG_SYSCTL)
101345
101346-static struct ctl_table sd_ctl_dir[] = {
101347+static ctl_table_no_const sd_ctl_dir[] __read_only = {
101348 {
101349 .procname = "sched_domain",
101350 .mode = 0555,
101351@@ -5057,17 +5064,17 @@ static struct ctl_table sd_ctl_root[] = {
101352 {}
101353 };
101354
101355-static struct ctl_table *sd_alloc_ctl_entry(int n)
101356+static ctl_table_no_const *sd_alloc_ctl_entry(int n)
101357 {
101358- struct ctl_table *entry =
101359+ ctl_table_no_const *entry =
101360 kcalloc(n, sizeof(struct ctl_table), GFP_KERNEL);
101361
101362 return entry;
101363 }
101364
101365-static void sd_free_ctl_entry(struct ctl_table **tablep)
101366+static void sd_free_ctl_entry(ctl_table_no_const *tablep)
101367 {
101368- struct ctl_table *entry;
101369+ ctl_table_no_const *entry;
101370
101371 /*
101372 * In the intermediate directories, both the child directory and
101373@@ -5075,22 +5082,25 @@ static void sd_free_ctl_entry(struct ctl_table **tablep)
101374 * will always be set. In the lowest directory the names are
101375 * static strings and all have proc handlers.
101376 */
101377- for (entry = *tablep; entry->mode; entry++) {
101378- if (entry->child)
101379- sd_free_ctl_entry(&entry->child);
101380+ for (entry = tablep; entry->mode; entry++) {
101381+ if (entry->child) {
101382+ sd_free_ctl_entry(entry->child);
101383+ pax_open_kernel();
101384+ entry->child = NULL;
101385+ pax_close_kernel();
101386+ }
101387 if (entry->proc_handler == NULL)
101388 kfree(entry->procname);
101389 }
101390
101391- kfree(*tablep);
101392- *tablep = NULL;
101393+ kfree(tablep);
101394 }
101395
101396 static int min_load_idx = 0;
101397 static int max_load_idx = CPU_LOAD_IDX_MAX-1;
101398
101399 static void
101400-set_table_entry(struct ctl_table *entry,
101401+set_table_entry(ctl_table_no_const *entry,
101402 const char *procname, void *data, int maxlen,
101403 umode_t mode, proc_handler *proc_handler,
101404 bool load_idx)
101405@@ -5110,7 +5120,7 @@ set_table_entry(struct ctl_table *entry,
101406 static struct ctl_table *
101407 sd_alloc_ctl_domain_table(struct sched_domain *sd)
101408 {
101409- struct ctl_table *table = sd_alloc_ctl_entry(14);
101410+ ctl_table_no_const *table = sd_alloc_ctl_entry(14);
101411
101412 if (table == NULL)
101413 return NULL;
101414@@ -5148,9 +5158,9 @@ sd_alloc_ctl_domain_table(struct sched_domain *sd)
101415 return table;
101416 }
101417
101418-static struct ctl_table *sd_alloc_ctl_cpu_table(int cpu)
101419+static ctl_table_no_const *sd_alloc_ctl_cpu_table(int cpu)
101420 {
101421- struct ctl_table *entry, *table;
101422+ ctl_table_no_const *entry, *table;
101423 struct sched_domain *sd;
101424 int domain_num = 0, i;
101425 char buf[32];
101426@@ -5177,11 +5187,13 @@ static struct ctl_table_header *sd_sysctl_header;
101427 static void register_sched_domain_sysctl(void)
101428 {
101429 int i, cpu_num = num_possible_cpus();
101430- struct ctl_table *entry = sd_alloc_ctl_entry(cpu_num + 1);
101431+ ctl_table_no_const *entry = sd_alloc_ctl_entry(cpu_num + 1);
101432 char buf[32];
101433
101434 WARN_ON(sd_ctl_dir[0].child);
101435+ pax_open_kernel();
101436 sd_ctl_dir[0].child = entry;
101437+ pax_close_kernel();
101438
101439 if (entry == NULL)
101440 return;
101441@@ -5204,8 +5216,12 @@ static void unregister_sched_domain_sysctl(void)
101442 if (sd_sysctl_header)
101443 unregister_sysctl_table(sd_sysctl_header);
101444 sd_sysctl_header = NULL;
101445- if (sd_ctl_dir[0].child)
101446- sd_free_ctl_entry(&sd_ctl_dir[0].child);
101447+ if (sd_ctl_dir[0].child) {
101448+ sd_free_ctl_entry(sd_ctl_dir[0].child);
101449+ pax_open_kernel();
101450+ sd_ctl_dir[0].child = NULL;
101451+ pax_close_kernel();
101452+ }
101453 }
101454 #else
101455 static void register_sched_domain_sysctl(void)
101456diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
101457index 486d00c..62f3f6e 100644
101458--- a/kernel/sched/fair.c
101459+++ b/kernel/sched/fair.c
101460@@ -2092,7 +2092,7 @@ void task_numa_fault(int last_cpupid, int mem_node, int pages, int flags)
101461
101462 static void reset_ptenuma_scan(struct task_struct *p)
101463 {
101464- ACCESS_ONCE(p->mm->numa_scan_seq)++;
101465+ ACCESS_ONCE_RW(p->mm->numa_scan_seq)++;
101466 p->mm->numa_scan_offset = 0;
101467 }
101468
101469@@ -7656,7 +7656,7 @@ static void nohz_idle_balance(struct rq *this_rq, enum cpu_idle_type idle) { }
101470 * run_rebalance_domains is triggered when needed from the scheduler tick.
101471 * Also triggered for nohz idle balancing (with nohz_balancing_kick set).
101472 */
101473-static void run_rebalance_domains(struct softirq_action *h)
101474+static __latent_entropy void run_rebalance_domains(void)
101475 {
101476 struct rq *this_rq = this_rq();
101477 enum cpu_idle_type idle = this_rq->idle_balance ?
101478diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
101479index dc0f435..ae2e085 100644
101480--- a/kernel/sched/sched.h
101481+++ b/kernel/sched/sched.h
101482@@ -1200,7 +1200,7 @@ struct sched_class {
101483 #ifdef CONFIG_FAIR_GROUP_SCHED
101484 void (*task_move_group) (struct task_struct *p, int on_rq);
101485 #endif
101486-};
101487+} __do_const;
101488
101489 static inline void put_prev_task(struct rq *rq, struct task_struct *prev)
101490 {
101491diff --git a/kernel/signal.c b/kernel/signal.c
101492index a390499..ebe9a21 100644
101493--- a/kernel/signal.c
101494+++ b/kernel/signal.c
101495@@ -53,12 +53,12 @@ static struct kmem_cache *sigqueue_cachep;
101496
101497 int print_fatal_signals __read_mostly;
101498
101499-static void __user *sig_handler(struct task_struct *t, int sig)
101500+static __sighandler_t sig_handler(struct task_struct *t, int sig)
101501 {
101502 return t->sighand->action[sig - 1].sa.sa_handler;
101503 }
101504
101505-static int sig_handler_ignored(void __user *handler, int sig)
101506+static int sig_handler_ignored(__sighandler_t handler, int sig)
101507 {
101508 /* Is it explicitly or implicitly ignored? */
101509 return handler == SIG_IGN ||
101510@@ -67,7 +67,7 @@ static int sig_handler_ignored(void __user *handler, int sig)
101511
101512 static int sig_task_ignored(struct task_struct *t, int sig, bool force)
101513 {
101514- void __user *handler;
101515+ __sighandler_t handler;
101516
101517 handler = sig_handler(t, sig);
101518
101519@@ -372,6 +372,9 @@ __sigqueue_alloc(int sig, struct task_struct *t, gfp_t flags, int override_rlimi
101520 atomic_inc(&user->sigpending);
101521 rcu_read_unlock();
101522
101523+ if (!override_rlimit)
101524+ gr_learn_resource(t, RLIMIT_SIGPENDING, atomic_read(&user->sigpending), 1);
101525+
101526 if (override_rlimit ||
101527 atomic_read(&user->sigpending) <=
101528 task_rlimit(t, RLIMIT_SIGPENDING)) {
101529@@ -499,7 +502,7 @@ flush_signal_handlers(struct task_struct *t, int force_default)
101530
101531 int unhandled_signal(struct task_struct *tsk, int sig)
101532 {
101533- void __user *handler = tsk->sighand->action[sig-1].sa.sa_handler;
101534+ __sighandler_t handler = tsk->sighand->action[sig-1].sa.sa_handler;
101535 if (is_global_init(tsk))
101536 return 1;
101537 if (handler != SIG_IGN && handler != SIG_DFL)
101538@@ -793,6 +796,13 @@ static int check_kill_permission(int sig, struct siginfo *info,
101539 }
101540 }
101541
101542+ /* allow glibc communication via tgkill to other threads in our
101543+ thread group */
101544+ if ((info == SEND_SIG_NOINFO || info->si_code != SI_TKILL ||
101545+ sig != (SIGRTMIN+1) || task_tgid_vnr(t) != info->si_pid)
101546+ && gr_handle_signal(t, sig))
101547+ return -EPERM;
101548+
101549 return security_task_kill(t, info, sig, 0);
101550 }
101551
101552@@ -1176,7 +1186,7 @@ __group_send_sig_info(int sig, struct siginfo *info, struct task_struct *p)
101553 return send_signal(sig, info, p, 1);
101554 }
101555
101556-static int
101557+int
101558 specific_send_sig_info(int sig, struct siginfo *info, struct task_struct *t)
101559 {
101560 return send_signal(sig, info, t, 0);
101561@@ -1213,6 +1223,7 @@ force_sig_info(int sig, struct siginfo *info, struct task_struct *t)
101562 unsigned long int flags;
101563 int ret, blocked, ignored;
101564 struct k_sigaction *action;
101565+ int is_unhandled = 0;
101566
101567 spin_lock_irqsave(&t->sighand->siglock, flags);
101568 action = &t->sighand->action[sig-1];
101569@@ -1227,9 +1238,18 @@ force_sig_info(int sig, struct siginfo *info, struct task_struct *t)
101570 }
101571 if (action->sa.sa_handler == SIG_DFL)
101572 t->signal->flags &= ~SIGNAL_UNKILLABLE;
101573+ if (action->sa.sa_handler == SIG_IGN || action->sa.sa_handler == SIG_DFL)
101574+ is_unhandled = 1;
101575 ret = specific_send_sig_info(sig, info, t);
101576 spin_unlock_irqrestore(&t->sighand->siglock, flags);
101577
101578+ /* only deal with unhandled signals, java etc trigger SIGSEGV during
101579+ normal operation */
101580+ if (is_unhandled) {
101581+ gr_log_signal(sig, !is_si_special(info) ? info->si_addr : NULL, t);
101582+ gr_handle_crash(t, sig);
101583+ }
101584+
101585 return ret;
101586 }
101587
101588@@ -1310,8 +1330,11 @@ int group_send_sig_info(int sig, struct siginfo *info, struct task_struct *p)
101589 ret = check_kill_permission(sig, info, p);
101590 rcu_read_unlock();
101591
101592- if (!ret && sig)
101593+ if (!ret && sig) {
101594 ret = do_send_sig_info(sig, info, p, true);
101595+ if (!ret)
101596+ gr_log_signal(sig, !is_si_special(info) ? info->si_addr : NULL, p);
101597+ }
101598
101599 return ret;
101600 }
101601@@ -2915,7 +2938,15 @@ do_send_specific(pid_t tgid, pid_t pid, int sig, struct siginfo *info)
101602 int error = -ESRCH;
101603
101604 rcu_read_lock();
101605- p = find_task_by_vpid(pid);
101606+#ifdef CONFIG_GRKERNSEC_CHROOT_FINDTASK
101607+ /* allow glibc communication via tgkill to other threads in our
101608+ thread group */
101609+ if (grsec_enable_chroot_findtask && info->si_code == SI_TKILL &&
101610+ sig == (SIGRTMIN+1) && tgid == info->si_pid)
101611+ p = find_task_by_vpid_unrestricted(pid);
101612+ else
101613+#endif
101614+ p = find_task_by_vpid(pid);
101615 if (p && (tgid <= 0 || task_tgid_vnr(p) == tgid)) {
101616 error = check_kill_permission(sig, info, p);
101617 /*
101618@@ -3248,8 +3279,8 @@ COMPAT_SYSCALL_DEFINE2(sigaltstack,
101619 }
101620 seg = get_fs();
101621 set_fs(KERNEL_DS);
101622- ret = do_sigaltstack((stack_t __force __user *) (uss_ptr ? &uss : NULL),
101623- (stack_t __force __user *) &uoss,
101624+ ret = do_sigaltstack((stack_t __force_user *) (uss_ptr ? &uss : NULL),
101625+ (stack_t __force_user *) &uoss,
101626 compat_user_stack_pointer());
101627 set_fs(seg);
101628 if (ret >= 0 && uoss_ptr) {
101629diff --git a/kernel/smpboot.c b/kernel/smpboot.c
101630index 40190f2..8861d40 100644
101631--- a/kernel/smpboot.c
101632+++ b/kernel/smpboot.c
101633@@ -290,7 +290,7 @@ int smpboot_register_percpu_thread(struct smp_hotplug_thread *plug_thread)
101634 }
101635 smpboot_unpark_thread(plug_thread, cpu);
101636 }
101637- list_add(&plug_thread->list, &hotplug_threads);
101638+ pax_list_add(&plug_thread->list, &hotplug_threads);
101639 out:
101640 mutex_unlock(&smpboot_threads_lock);
101641 put_online_cpus();
101642@@ -308,7 +308,7 @@ void smpboot_unregister_percpu_thread(struct smp_hotplug_thread *plug_thread)
101643 {
101644 get_online_cpus();
101645 mutex_lock(&smpboot_threads_lock);
101646- list_del(&plug_thread->list);
101647+ pax_list_del(&plug_thread->list);
101648 smpboot_destroy_threads(plug_thread);
101649 mutex_unlock(&smpboot_threads_lock);
101650 put_online_cpus();
101651diff --git a/kernel/softirq.c b/kernel/softirq.c
101652index 479e443..66d845e1 100644
101653--- a/kernel/softirq.c
101654+++ b/kernel/softirq.c
101655@@ -53,7 +53,7 @@ irq_cpustat_t irq_stat[NR_CPUS] ____cacheline_aligned;
101656 EXPORT_SYMBOL(irq_stat);
101657 #endif
101658
101659-static struct softirq_action softirq_vec[NR_SOFTIRQS] __cacheline_aligned_in_smp;
101660+static struct softirq_action softirq_vec[NR_SOFTIRQS] __read_only __aligned(PAGE_SIZE);
101661
101662 DEFINE_PER_CPU(struct task_struct *, ksoftirqd);
101663
101664@@ -270,7 +270,7 @@ restart:
101665 kstat_incr_softirqs_this_cpu(vec_nr);
101666
101667 trace_softirq_entry(vec_nr);
101668- h->action(h);
101669+ h->action();
101670 trace_softirq_exit(vec_nr);
101671 if (unlikely(prev_count != preempt_count())) {
101672 pr_err("huh, entered softirq %u %s %p with preempt_count %08x, exited with %08x?\n",
101673@@ -430,7 +430,7 @@ void __raise_softirq_irqoff(unsigned int nr)
101674 or_softirq_pending(1UL << nr);
101675 }
101676
101677-void open_softirq(int nr, void (*action)(struct softirq_action *))
101678+void __init open_softirq(int nr, void (*action)(void))
101679 {
101680 softirq_vec[nr].action = action;
101681 }
101682@@ -482,7 +482,7 @@ void __tasklet_hi_schedule_first(struct tasklet_struct *t)
101683 }
101684 EXPORT_SYMBOL(__tasklet_hi_schedule_first);
101685
101686-static void tasklet_action(struct softirq_action *a)
101687+static void tasklet_action(void)
101688 {
101689 struct tasklet_struct *list;
101690
101691@@ -518,7 +518,7 @@ static void tasklet_action(struct softirq_action *a)
101692 }
101693 }
101694
101695-static void tasklet_hi_action(struct softirq_action *a)
101696+static __latent_entropy void tasklet_hi_action(void)
101697 {
101698 struct tasklet_struct *list;
101699
101700@@ -744,7 +744,7 @@ static struct notifier_block cpu_nfb = {
101701 .notifier_call = cpu_callback
101702 };
101703
101704-static struct smp_hotplug_thread softirq_threads = {
101705+static struct smp_hotplug_thread softirq_threads __read_only = {
101706 .store = &ksoftirqd,
101707 .thread_should_run = ksoftirqd_should_run,
101708 .thread_fn = run_ksoftirqd,
101709diff --git a/kernel/sys.c b/kernel/sys.c
101710index a03d9cd..55dbe9c 100644
101711--- a/kernel/sys.c
101712+++ b/kernel/sys.c
101713@@ -160,6 +160,12 @@ static int set_one_prio(struct task_struct *p, int niceval, int error)
101714 error = -EACCES;
101715 goto out;
101716 }
101717+
101718+ if (gr_handle_chroot_setpriority(p, niceval)) {
101719+ error = -EACCES;
101720+ goto out;
101721+ }
101722+
101723 no_nice = security_task_setnice(p, niceval);
101724 if (no_nice) {
101725 error = no_nice;
101726@@ -365,6 +371,20 @@ SYSCALL_DEFINE2(setregid, gid_t, rgid, gid_t, egid)
101727 goto error;
101728 }
101729
101730+ if (gr_check_group_change(new->gid, new->egid, INVALID_GID))
101731+ goto error;
101732+
101733+ if (!gid_eq(new->gid, old->gid)) {
101734+ /* make sure we generate a learn log for what will
101735+ end up being a role transition after a full-learning
101736+ policy is generated
101737+ CAP_SETGID is required to perform a transition
101738+ we may not log a CAP_SETGID check above, e.g.
101739+ in the case where new rgid = old egid
101740+ */
101741+ gr_learn_cap(current, new, CAP_SETGID);
101742+ }
101743+
101744 if (rgid != (gid_t) -1 ||
101745 (egid != (gid_t) -1 && !gid_eq(kegid, old->gid)))
101746 new->sgid = new->egid;
101747@@ -400,6 +420,10 @@ SYSCALL_DEFINE1(setgid, gid_t, gid)
101748 old = current_cred();
101749
101750 retval = -EPERM;
101751+
101752+ if (gr_check_group_change(kgid, kgid, kgid))
101753+ goto error;
101754+
101755 if (ns_capable(old->user_ns, CAP_SETGID))
101756 new->gid = new->egid = new->sgid = new->fsgid = kgid;
101757 else if (gid_eq(kgid, old->gid) || gid_eq(kgid, old->sgid))
101758@@ -417,7 +441,7 @@ error:
101759 /*
101760 * change the user struct in a credentials set to match the new UID
101761 */
101762-static int set_user(struct cred *new)
101763+int set_user(struct cred *new)
101764 {
101765 struct user_struct *new_user;
101766
101767@@ -497,7 +521,18 @@ SYSCALL_DEFINE2(setreuid, uid_t, ruid, uid_t, euid)
101768 goto error;
101769 }
101770
101771+ if (gr_check_user_change(new->uid, new->euid, INVALID_UID))
101772+ goto error;
101773+
101774 if (!uid_eq(new->uid, old->uid)) {
101775+ /* make sure we generate a learn log for what will
101776+ end up being a role transition after a full-learning
101777+ policy is generated
101778+ CAP_SETUID is required to perform a transition
101779+ we may not log a CAP_SETUID check above, e.g.
101780+ in the case where new ruid = old euid
101781+ */
101782+ gr_learn_cap(current, new, CAP_SETUID);
101783 retval = set_user(new);
101784 if (retval < 0)
101785 goto error;
101786@@ -547,6 +582,12 @@ SYSCALL_DEFINE1(setuid, uid_t, uid)
101787 old = current_cred();
101788
101789 retval = -EPERM;
101790+
101791+ if (gr_check_crash_uid(kuid))
101792+ goto error;
101793+ if (gr_check_user_change(kuid, kuid, kuid))
101794+ goto error;
101795+
101796 if (ns_capable(old->user_ns, CAP_SETUID)) {
101797 new->suid = new->uid = kuid;
101798 if (!uid_eq(kuid, old->uid)) {
101799@@ -616,6 +657,9 @@ SYSCALL_DEFINE3(setresuid, uid_t, ruid, uid_t, euid, uid_t, suid)
101800 goto error;
101801 }
101802
101803+ if (gr_check_user_change(kruid, keuid, INVALID_UID))
101804+ goto error;
101805+
101806 if (ruid != (uid_t) -1) {
101807 new->uid = kruid;
101808 if (!uid_eq(kruid, old->uid)) {
101809@@ -700,6 +744,9 @@ SYSCALL_DEFINE3(setresgid, gid_t, rgid, gid_t, egid, gid_t, sgid)
101810 goto error;
101811 }
101812
101813+ if (gr_check_group_change(krgid, kegid, INVALID_GID))
101814+ goto error;
101815+
101816 if (rgid != (gid_t) -1)
101817 new->gid = krgid;
101818 if (egid != (gid_t) -1)
101819@@ -764,12 +811,16 @@ SYSCALL_DEFINE1(setfsuid, uid_t, uid)
101820 uid_eq(kuid, old->suid) || uid_eq(kuid, old->fsuid) ||
101821 ns_capable(old->user_ns, CAP_SETUID)) {
101822 if (!uid_eq(kuid, old->fsuid)) {
101823+ if (gr_check_user_change(INVALID_UID, INVALID_UID, kuid))
101824+ goto error;
101825+
101826 new->fsuid = kuid;
101827 if (security_task_fix_setuid(new, old, LSM_SETID_FS) == 0)
101828 goto change_okay;
101829 }
101830 }
101831
101832+error:
101833 abort_creds(new);
101834 return old_fsuid;
101835
101836@@ -802,12 +853,16 @@ SYSCALL_DEFINE1(setfsgid, gid_t, gid)
101837 if (gid_eq(kgid, old->gid) || gid_eq(kgid, old->egid) ||
101838 gid_eq(kgid, old->sgid) || gid_eq(kgid, old->fsgid) ||
101839 ns_capable(old->user_ns, CAP_SETGID)) {
101840+ if (gr_check_group_change(INVALID_GID, INVALID_GID, kgid))
101841+ goto error;
101842+
101843 if (!gid_eq(kgid, old->fsgid)) {
101844 new->fsgid = kgid;
101845 goto change_okay;
101846 }
101847 }
101848
101849+error:
101850 abort_creds(new);
101851 return old_fsgid;
101852
101853@@ -1185,19 +1240,19 @@ SYSCALL_DEFINE1(olduname, struct oldold_utsname __user *, name)
101854 return -EFAULT;
101855
101856 down_read(&uts_sem);
101857- error = __copy_to_user(&name->sysname, &utsname()->sysname,
101858+ error = __copy_to_user(name->sysname, &utsname()->sysname,
101859 __OLD_UTS_LEN);
101860 error |= __put_user(0, name->sysname + __OLD_UTS_LEN);
101861- error |= __copy_to_user(&name->nodename, &utsname()->nodename,
101862+ error |= __copy_to_user(name->nodename, &utsname()->nodename,
101863 __OLD_UTS_LEN);
101864 error |= __put_user(0, name->nodename + __OLD_UTS_LEN);
101865- error |= __copy_to_user(&name->release, &utsname()->release,
101866+ error |= __copy_to_user(name->release, &utsname()->release,
101867 __OLD_UTS_LEN);
101868 error |= __put_user(0, name->release + __OLD_UTS_LEN);
101869- error |= __copy_to_user(&name->version, &utsname()->version,
101870+ error |= __copy_to_user(name->version, &utsname()->version,
101871 __OLD_UTS_LEN);
101872 error |= __put_user(0, name->version + __OLD_UTS_LEN);
101873- error |= __copy_to_user(&name->machine, &utsname()->machine,
101874+ error |= __copy_to_user(name->machine, &utsname()->machine,
101875 __OLD_UTS_LEN);
101876 error |= __put_user(0, name->machine + __OLD_UTS_LEN);
101877 up_read(&uts_sem);
101878@@ -1398,6 +1453,13 @@ int do_prlimit(struct task_struct *tsk, unsigned int resource,
101879 */
101880 new_rlim->rlim_cur = 1;
101881 }
101882+ /* Handle the case where a fork and setuid occur and then RLIMIT_NPROC
101883+ is changed to a lower value. Since tasks can be created by the same
101884+ user in between this limit change and an execve by this task, force
101885+ a recheck only for this task by setting PF_NPROC_EXCEEDED
101886+ */
101887+ if (resource == RLIMIT_NPROC && tsk->real_cred->user != INIT_USER)
101888+ tsk->flags |= PF_NPROC_EXCEEDED;
101889 }
101890 if (!retval) {
101891 if (old_rlim)
101892diff --git a/kernel/sysctl.c b/kernel/sysctl.c
101893index ce410bb..cd276f0 100644
101894--- a/kernel/sysctl.c
101895+++ b/kernel/sysctl.c
101896@@ -94,7 +94,6 @@
101897
101898
101899 #if defined(CONFIG_SYSCTL)
101900-
101901 /* External variables not in a header file. */
101902 extern int max_threads;
101903 extern int suid_dumpable;
101904@@ -115,19 +114,20 @@ extern int sysctl_nr_trim_pages;
101905
101906 /* Constants used for minimum and maximum */
101907 #ifdef CONFIG_LOCKUP_DETECTOR
101908-static int sixty = 60;
101909+static int sixty __read_only = 60;
101910 #endif
101911
101912-static int __maybe_unused neg_one = -1;
101913+static int __maybe_unused neg_one __read_only = -1;
101914
101915-static int zero;
101916-static int __maybe_unused one = 1;
101917-static int __maybe_unused two = 2;
101918-static int __maybe_unused four = 4;
101919-static unsigned long one_ul = 1;
101920-static int one_hundred = 100;
101921+static int zero __read_only = 0;
101922+static int __maybe_unused one __read_only = 1;
101923+static int __maybe_unused two __read_only = 2;
101924+static int __maybe_unused three __read_only = 3;
101925+static int __maybe_unused four __read_only = 4;
101926+static unsigned long one_ul __read_only = 1;
101927+static int one_hundred __read_only = 100;
101928 #ifdef CONFIG_PRINTK
101929-static int ten_thousand = 10000;
101930+static int ten_thousand __read_only = 10000;
101931 #endif
101932
101933 /* this is needed for the proc_doulongvec_minmax of vm_dirty_bytes */
101934@@ -181,10 +181,8 @@ static int proc_taint(struct ctl_table *table, int write,
101935 void __user *buffer, size_t *lenp, loff_t *ppos);
101936 #endif
101937
101938-#ifdef CONFIG_PRINTK
101939 static int proc_dointvec_minmax_sysadmin(struct ctl_table *table, int write,
101940 void __user *buffer, size_t *lenp, loff_t *ppos);
101941-#endif
101942
101943 static int proc_dointvec_minmax_coredump(struct ctl_table *table, int write,
101944 void __user *buffer, size_t *lenp, loff_t *ppos);
101945@@ -215,6 +213,8 @@ static int sysrq_sysctl_handler(struct ctl_table *table, int write,
101946
101947 #endif
101948
101949+extern struct ctl_table grsecurity_table[];
101950+
101951 static struct ctl_table kern_table[];
101952 static struct ctl_table vm_table[];
101953 static struct ctl_table fs_table[];
101954@@ -229,6 +229,20 @@ extern struct ctl_table epoll_table[];
101955 int sysctl_legacy_va_layout;
101956 #endif
101957
101958+#ifdef CONFIG_PAX_SOFTMODE
101959+static struct ctl_table pax_table[] = {
101960+ {
101961+ .procname = "softmode",
101962+ .data = &pax_softmode,
101963+ .maxlen = sizeof(unsigned int),
101964+ .mode = 0600,
101965+ .proc_handler = &proc_dointvec,
101966+ },
101967+
101968+ { }
101969+};
101970+#endif
101971+
101972 /* The default sysctl tables: */
101973
101974 static struct ctl_table sysctl_base_table[] = {
101975@@ -277,6 +291,22 @@ static int max_extfrag_threshold = 1000;
101976 #endif
101977
101978 static struct ctl_table kern_table[] = {
101979+#if defined(CONFIG_GRKERNSEC_SYSCTL) || defined(CONFIG_GRKERNSEC_ROFS)
101980+ {
101981+ .procname = "grsecurity",
101982+ .mode = 0500,
101983+ .child = grsecurity_table,
101984+ },
101985+#endif
101986+
101987+#ifdef CONFIG_PAX_SOFTMODE
101988+ {
101989+ .procname = "pax",
101990+ .mode = 0500,
101991+ .child = pax_table,
101992+ },
101993+#endif
101994+
101995 {
101996 .procname = "sched_child_runs_first",
101997 .data = &sysctl_sched_child_runs_first,
101998@@ -649,7 +679,7 @@ static struct ctl_table kern_table[] = {
101999 .data = &modprobe_path,
102000 .maxlen = KMOD_PATH_LEN,
102001 .mode = 0644,
102002- .proc_handler = proc_dostring,
102003+ .proc_handler = proc_dostring_modpriv,
102004 },
102005 {
102006 .procname = "modules_disabled",
102007@@ -816,16 +846,20 @@ static struct ctl_table kern_table[] = {
102008 .extra1 = &zero,
102009 .extra2 = &one,
102010 },
102011+#endif
102012 {
102013 .procname = "kptr_restrict",
102014 .data = &kptr_restrict,
102015 .maxlen = sizeof(int),
102016 .mode = 0644,
102017 .proc_handler = proc_dointvec_minmax_sysadmin,
102018+#ifdef CONFIG_GRKERNSEC_HIDESYM
102019+ .extra1 = &two,
102020+#else
102021 .extra1 = &zero,
102022+#endif
102023 .extra2 = &two,
102024 },
102025-#endif
102026 {
102027 .procname = "ngroups_max",
102028 .data = &ngroups_max,
102029@@ -1072,10 +1106,17 @@ static struct ctl_table kern_table[] = {
102030 */
102031 {
102032 .procname = "perf_event_paranoid",
102033- .data = &sysctl_perf_event_paranoid,
102034- .maxlen = sizeof(sysctl_perf_event_paranoid),
102035+ .data = &sysctl_perf_event_legitimately_concerned,
102036+ .maxlen = sizeof(sysctl_perf_event_legitimately_concerned),
102037 .mode = 0644,
102038- .proc_handler = proc_dointvec,
102039+ /* go ahead, be a hero */
102040+ .proc_handler = proc_dointvec_minmax_sysadmin,
102041+ .extra1 = &neg_one,
102042+#ifdef CONFIG_GRKERNSEC_PERF_HARDEN
102043+ .extra2 = &three,
102044+#else
102045+ .extra2 = &two,
102046+#endif
102047 },
102048 {
102049 .procname = "perf_event_mlock_kb",
102050@@ -1348,6 +1389,13 @@ static struct ctl_table vm_table[] = {
102051 .proc_handler = proc_dointvec_minmax,
102052 .extra1 = &zero,
102053 },
102054+ {
102055+ .procname = "heap_stack_gap",
102056+ .data = &sysctl_heap_stack_gap,
102057+ .maxlen = sizeof(sysctl_heap_stack_gap),
102058+ .mode = 0644,
102059+ .proc_handler = proc_doulongvec_minmax,
102060+ },
102061 #else
102062 {
102063 .procname = "nr_trim_pages",
102064@@ -1830,6 +1878,16 @@ int proc_dostring(struct ctl_table *table, int write,
102065 (char __user *)buffer, lenp, ppos);
102066 }
102067
102068+int proc_dostring_modpriv(struct ctl_table *table, int write,
102069+ void __user *buffer, size_t *lenp, loff_t *ppos)
102070+{
102071+ if (write && !capable(CAP_SYS_MODULE))
102072+ return -EPERM;
102073+
102074+ return _proc_do_string(table->data, table->maxlen, write,
102075+ buffer, lenp, ppos);
102076+}
102077+
102078 static size_t proc_skip_spaces(char **buf)
102079 {
102080 size_t ret;
102081@@ -1935,6 +1993,8 @@ static int proc_put_long(void __user **buf, size_t *size, unsigned long val,
102082 len = strlen(tmp);
102083 if (len > *size)
102084 len = *size;
102085+ if (len > sizeof(tmp))
102086+ len = sizeof(tmp);
102087 if (copy_to_user(*buf, tmp, len))
102088 return -EFAULT;
102089 *size -= len;
102090@@ -2112,7 +2172,7 @@ int proc_dointvec(struct ctl_table *table, int write,
102091 static int proc_taint(struct ctl_table *table, int write,
102092 void __user *buffer, size_t *lenp, loff_t *ppos)
102093 {
102094- struct ctl_table t;
102095+ ctl_table_no_const t;
102096 unsigned long tmptaint = get_taint();
102097 int err;
102098
102099@@ -2140,7 +2200,6 @@ static int proc_taint(struct ctl_table *table, int write,
102100 return err;
102101 }
102102
102103-#ifdef CONFIG_PRINTK
102104 static int proc_dointvec_minmax_sysadmin(struct ctl_table *table, int write,
102105 void __user *buffer, size_t *lenp, loff_t *ppos)
102106 {
102107@@ -2149,7 +2208,6 @@ static int proc_dointvec_minmax_sysadmin(struct ctl_table *table, int write,
102108
102109 return proc_dointvec_minmax(table, write, buffer, lenp, ppos);
102110 }
102111-#endif
102112
102113 struct do_proc_dointvec_minmax_conv_param {
102114 int *min;
102115@@ -2709,6 +2767,12 @@ int proc_dostring(struct ctl_table *table, int write,
102116 return -ENOSYS;
102117 }
102118
102119+int proc_dostring_modpriv(struct ctl_table *table, int write,
102120+ void __user *buffer, size_t *lenp, loff_t *ppos)
102121+{
102122+ return -ENOSYS;
102123+}
102124+
102125 int proc_dointvec(struct ctl_table *table, int write,
102126 void __user *buffer, size_t *lenp, loff_t *ppos)
102127 {
102128@@ -2765,5 +2829,6 @@ EXPORT_SYMBOL(proc_dointvec_minmax);
102129 EXPORT_SYMBOL(proc_dointvec_userhz_jiffies);
102130 EXPORT_SYMBOL(proc_dointvec_ms_jiffies);
102131 EXPORT_SYMBOL(proc_dostring);
102132+EXPORT_SYMBOL(proc_dostring_modpriv);
102133 EXPORT_SYMBOL(proc_doulongvec_minmax);
102134 EXPORT_SYMBOL(proc_doulongvec_ms_jiffies_minmax);
102135diff --git a/kernel/taskstats.c b/kernel/taskstats.c
102136index 21f82c2..c1984e5 100644
102137--- a/kernel/taskstats.c
102138+++ b/kernel/taskstats.c
102139@@ -28,9 +28,12 @@
102140 #include <linux/fs.h>
102141 #include <linux/file.h>
102142 #include <linux/pid_namespace.h>
102143+#include <linux/grsecurity.h>
102144 #include <net/genetlink.h>
102145 #include <linux/atomic.h>
102146
102147+extern int gr_is_taskstats_denied(int pid);
102148+
102149 /*
102150 * Maximum length of a cpumask that can be specified in
102151 * the TASKSTATS_CMD_ATTR_REGISTER/DEREGISTER_CPUMASK attribute
102152@@ -567,6 +570,9 @@ err:
102153
102154 static int taskstats_user_cmd(struct sk_buff *skb, struct genl_info *info)
102155 {
102156+ if (gr_is_taskstats_denied(current->pid))
102157+ return -EACCES;
102158+
102159 if (info->attrs[TASKSTATS_CMD_ATTR_REGISTER_CPUMASK])
102160 return cmd_attr_register_cpumask(info);
102161 else if (info->attrs[TASKSTATS_CMD_ATTR_DEREGISTER_CPUMASK])
102162diff --git a/kernel/time/alarmtimer.c b/kernel/time/alarmtimer.c
102163index 1b001ed..55ef9e4 100644
102164--- a/kernel/time/alarmtimer.c
102165+++ b/kernel/time/alarmtimer.c
102166@@ -823,7 +823,7 @@ static int __init alarmtimer_init(void)
102167 struct platform_device *pdev;
102168 int error = 0;
102169 int i;
102170- struct k_clock alarm_clock = {
102171+ static struct k_clock alarm_clock = {
102172 .clock_getres = alarm_clock_getres,
102173 .clock_get = alarm_clock_get,
102174 .timer_create = alarm_timer_create,
102175diff --git a/kernel/time/hrtimer.c b/kernel/time/hrtimer.c
102176index 38f586c..14386a7 100644
102177--- a/kernel/time/hrtimer.c
102178+++ b/kernel/time/hrtimer.c
102179@@ -1393,7 +1393,7 @@ void hrtimer_peek_ahead_timers(void)
102180 local_irq_restore(flags);
102181 }
102182
102183-static void run_hrtimer_softirq(struct softirq_action *h)
102184+static __latent_entropy void run_hrtimer_softirq(void)
102185 {
102186 hrtimer_peek_ahead_timers();
102187 }
102188diff --git a/kernel/time/posix-cpu-timers.c b/kernel/time/posix-cpu-timers.c
102189index 0075da7..63cc872 100644
102190--- a/kernel/time/posix-cpu-timers.c
102191+++ b/kernel/time/posix-cpu-timers.c
102192@@ -1449,14 +1449,14 @@ struct k_clock clock_posix_cpu = {
102193
102194 static __init int init_posix_cpu_timers(void)
102195 {
102196- struct k_clock process = {
102197+ static struct k_clock process = {
102198 .clock_getres = process_cpu_clock_getres,
102199 .clock_get = process_cpu_clock_get,
102200 .timer_create = process_cpu_timer_create,
102201 .nsleep = process_cpu_nsleep,
102202 .nsleep_restart = process_cpu_nsleep_restart,
102203 };
102204- struct k_clock thread = {
102205+ static struct k_clock thread = {
102206 .clock_getres = thread_cpu_clock_getres,
102207 .clock_get = thread_cpu_clock_get,
102208 .timer_create = thread_cpu_timer_create,
102209diff --git a/kernel/time/posix-timers.c b/kernel/time/posix-timers.c
102210index 31ea01f..7fc61ef 100644
102211--- a/kernel/time/posix-timers.c
102212+++ b/kernel/time/posix-timers.c
102213@@ -43,6 +43,7 @@
102214 #include <linux/hash.h>
102215 #include <linux/posix-clock.h>
102216 #include <linux/posix-timers.h>
102217+#include <linux/grsecurity.h>
102218 #include <linux/syscalls.h>
102219 #include <linux/wait.h>
102220 #include <linux/workqueue.h>
102221@@ -124,7 +125,7 @@ static DEFINE_SPINLOCK(hash_lock);
102222 * which we beg off on and pass to do_sys_settimeofday().
102223 */
102224
102225-static struct k_clock posix_clocks[MAX_CLOCKS];
102226+static struct k_clock *posix_clocks[MAX_CLOCKS];
102227
102228 /*
102229 * These ones are defined below.
102230@@ -277,7 +278,7 @@ static int posix_get_tai(clockid_t which_clock, struct timespec *tp)
102231 */
102232 static __init int init_posix_timers(void)
102233 {
102234- struct k_clock clock_realtime = {
102235+ static struct k_clock clock_realtime = {
102236 .clock_getres = hrtimer_get_res,
102237 .clock_get = posix_clock_realtime_get,
102238 .clock_set = posix_clock_realtime_set,
102239@@ -289,7 +290,7 @@ static __init int init_posix_timers(void)
102240 .timer_get = common_timer_get,
102241 .timer_del = common_timer_del,
102242 };
102243- struct k_clock clock_monotonic = {
102244+ static struct k_clock clock_monotonic = {
102245 .clock_getres = hrtimer_get_res,
102246 .clock_get = posix_ktime_get_ts,
102247 .nsleep = common_nsleep,
102248@@ -299,19 +300,19 @@ static __init int init_posix_timers(void)
102249 .timer_get = common_timer_get,
102250 .timer_del = common_timer_del,
102251 };
102252- struct k_clock clock_monotonic_raw = {
102253+ static struct k_clock clock_monotonic_raw = {
102254 .clock_getres = hrtimer_get_res,
102255 .clock_get = posix_get_monotonic_raw,
102256 };
102257- struct k_clock clock_realtime_coarse = {
102258+ static struct k_clock clock_realtime_coarse = {
102259 .clock_getres = posix_get_coarse_res,
102260 .clock_get = posix_get_realtime_coarse,
102261 };
102262- struct k_clock clock_monotonic_coarse = {
102263+ static struct k_clock clock_monotonic_coarse = {
102264 .clock_getres = posix_get_coarse_res,
102265 .clock_get = posix_get_monotonic_coarse,
102266 };
102267- struct k_clock clock_tai = {
102268+ static struct k_clock clock_tai = {
102269 .clock_getres = hrtimer_get_res,
102270 .clock_get = posix_get_tai,
102271 .nsleep = common_nsleep,
102272@@ -321,7 +322,7 @@ static __init int init_posix_timers(void)
102273 .timer_get = common_timer_get,
102274 .timer_del = common_timer_del,
102275 };
102276- struct k_clock clock_boottime = {
102277+ static struct k_clock clock_boottime = {
102278 .clock_getres = hrtimer_get_res,
102279 .clock_get = posix_get_boottime,
102280 .nsleep = common_nsleep,
102281@@ -533,7 +534,7 @@ void posix_timers_register_clock(const clockid_t clock_id,
102282 return;
102283 }
102284
102285- posix_clocks[clock_id] = *new_clock;
102286+ posix_clocks[clock_id] = new_clock;
102287 }
102288 EXPORT_SYMBOL_GPL(posix_timers_register_clock);
102289
102290@@ -579,9 +580,9 @@ static struct k_clock *clockid_to_kclock(const clockid_t id)
102291 return (id & CLOCKFD_MASK) == CLOCKFD ?
102292 &clock_posix_dynamic : &clock_posix_cpu;
102293
102294- if (id >= MAX_CLOCKS || !posix_clocks[id].clock_getres)
102295+ if (id >= MAX_CLOCKS || !posix_clocks[id] || !posix_clocks[id]->clock_getres)
102296 return NULL;
102297- return &posix_clocks[id];
102298+ return posix_clocks[id];
102299 }
102300
102301 static int common_timer_create(struct k_itimer *new_timer)
102302@@ -599,7 +600,7 @@ SYSCALL_DEFINE3(timer_create, const clockid_t, which_clock,
102303 struct k_clock *kc = clockid_to_kclock(which_clock);
102304 struct k_itimer *new_timer;
102305 int error, new_timer_id;
102306- sigevent_t event;
102307+ sigevent_t event = { };
102308 int it_id_set = IT_ID_NOT_SET;
102309
102310 if (!kc)
102311@@ -1014,6 +1015,13 @@ SYSCALL_DEFINE2(clock_settime, const clockid_t, which_clock,
102312 if (copy_from_user(&new_tp, tp, sizeof (*tp)))
102313 return -EFAULT;
102314
102315+ /* only the CLOCK_REALTIME clock can be set, all other clocks
102316+ have their clock_set fptr set to a nosettime dummy function
102317+ CLOCK_REALTIME has a NULL clock_set fptr which causes it to
102318+ call common_clock_set, which calls do_sys_settimeofday, which
102319+ we hook
102320+ */
102321+
102322 return kc->clock_set(which_clock, &new_tp);
102323 }
102324
102325diff --git a/kernel/time/time.c b/kernel/time/time.c
102326index 2c85b77..6530536 100644
102327--- a/kernel/time/time.c
102328+++ b/kernel/time/time.c
102329@@ -173,6 +173,11 @@ int do_sys_settimeofday(const struct timespec *tv, const struct timezone *tz)
102330 return error;
102331
102332 if (tz) {
102333+ /* we log in do_settimeofday called below, so don't log twice
102334+ */
102335+ if (!tv)
102336+ gr_log_timechange();
102337+
102338 sys_tz = *tz;
102339 update_vsyscall_tz();
102340 if (firsttime) {
102341diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c
102342index 91db941..a371671 100644
102343--- a/kernel/time/timekeeping.c
102344+++ b/kernel/time/timekeeping.c
102345@@ -15,6 +15,7 @@
102346 #include <linux/init.h>
102347 #include <linux/mm.h>
102348 #include <linux/sched.h>
102349+#include <linux/grsecurity.h>
102350 #include <linux/syscore_ops.h>
102351 #include <linux/clocksource.h>
102352 #include <linux/jiffies.h>
102353@@ -802,6 +803,8 @@ int do_settimeofday64(const struct timespec64 *ts)
102354 if (!timespec64_valid_strict(ts))
102355 return -EINVAL;
102356
102357+ gr_log_timechange();
102358+
102359 raw_spin_lock_irqsave(&timekeeper_lock, flags);
102360 write_seqcount_begin(&tk_core.seq);
102361
102362diff --git a/kernel/time/timer.c b/kernel/time/timer.c
102363index 2d3f5c5..7ed7dc5 100644
102364--- a/kernel/time/timer.c
102365+++ b/kernel/time/timer.c
102366@@ -1393,7 +1393,7 @@ void update_process_times(int user_tick)
102367 /*
102368 * This function runs timers and the timer-tq in bottom half context.
102369 */
102370-static void run_timer_softirq(struct softirq_action *h)
102371+static __latent_entropy void run_timer_softirq(void)
102372 {
102373 struct tvec_base *base = __this_cpu_read(tvec_bases);
102374
102375@@ -1456,7 +1456,7 @@ static void process_timeout(unsigned long __data)
102376 *
102377 * In all cases the return value is guaranteed to be non-negative.
102378 */
102379-signed long __sched schedule_timeout(signed long timeout)
102380+signed long __sched __intentional_overflow(-1) schedule_timeout(signed long timeout)
102381 {
102382 struct timer_list timer;
102383 unsigned long expire;
102384diff --git a/kernel/time/timer_list.c b/kernel/time/timer_list.c
102385index 61ed862..3b52c65 100644
102386--- a/kernel/time/timer_list.c
102387+++ b/kernel/time/timer_list.c
102388@@ -45,12 +45,16 @@ DECLARE_PER_CPU(struct hrtimer_cpu_base, hrtimer_bases);
102389
102390 static void print_name_offset(struct seq_file *m, void *sym)
102391 {
102392+#ifdef CONFIG_GRKERNSEC_HIDESYM
102393+ SEQ_printf(m, "<%p>", NULL);
102394+#else
102395 char symname[KSYM_NAME_LEN];
102396
102397 if (lookup_symbol_name((unsigned long)sym, symname) < 0)
102398 SEQ_printf(m, "<%pK>", sym);
102399 else
102400 SEQ_printf(m, "%s", symname);
102401+#endif
102402 }
102403
102404 static void
102405@@ -119,7 +123,11 @@ next_one:
102406 static void
102407 print_base(struct seq_file *m, struct hrtimer_clock_base *base, u64 now)
102408 {
102409+#ifdef CONFIG_GRKERNSEC_HIDESYM
102410+ SEQ_printf(m, " .base: %p\n", NULL);
102411+#else
102412 SEQ_printf(m, " .base: %pK\n", base);
102413+#endif
102414 SEQ_printf(m, " .index: %d\n",
102415 base->index);
102416 SEQ_printf(m, " .resolution: %Lu nsecs\n",
102417@@ -362,7 +370,11 @@ static int __init init_timer_list_procfs(void)
102418 {
102419 struct proc_dir_entry *pe;
102420
102421+#ifdef CONFIG_GRKERNSEC_PROC_ADD
102422+ pe = proc_create("timer_list", 0400, NULL, &timer_list_fops);
102423+#else
102424 pe = proc_create("timer_list", 0444, NULL, &timer_list_fops);
102425+#endif
102426 if (!pe)
102427 return -ENOMEM;
102428 return 0;
102429diff --git a/kernel/time/timer_stats.c b/kernel/time/timer_stats.c
102430index 1fb08f2..ca4bb1e 100644
102431--- a/kernel/time/timer_stats.c
102432+++ b/kernel/time/timer_stats.c
102433@@ -116,7 +116,7 @@ static ktime_t time_start, time_stop;
102434 static unsigned long nr_entries;
102435 static struct entry entries[MAX_ENTRIES];
102436
102437-static atomic_t overflow_count;
102438+static atomic_unchecked_t overflow_count;
102439
102440 /*
102441 * The entries are in a hash-table, for fast lookup:
102442@@ -140,7 +140,7 @@ static void reset_entries(void)
102443 nr_entries = 0;
102444 memset(entries, 0, sizeof(entries));
102445 memset(tstat_hash_table, 0, sizeof(tstat_hash_table));
102446- atomic_set(&overflow_count, 0);
102447+ atomic_set_unchecked(&overflow_count, 0);
102448 }
102449
102450 static struct entry *alloc_entry(void)
102451@@ -261,7 +261,7 @@ void timer_stats_update_stats(void *timer, pid_t pid, void *startf,
102452 if (likely(entry))
102453 entry->count++;
102454 else
102455- atomic_inc(&overflow_count);
102456+ atomic_inc_unchecked(&overflow_count);
102457
102458 out_unlock:
102459 raw_spin_unlock_irqrestore(lock, flags);
102460@@ -269,12 +269,16 @@ void timer_stats_update_stats(void *timer, pid_t pid, void *startf,
102461
102462 static void print_name_offset(struct seq_file *m, unsigned long addr)
102463 {
102464+#ifdef CONFIG_GRKERNSEC_HIDESYM
102465+ seq_printf(m, "<%p>", NULL);
102466+#else
102467 char symname[KSYM_NAME_LEN];
102468
102469 if (lookup_symbol_name(addr, symname) < 0)
102470- seq_printf(m, "<%p>", (void *)addr);
102471+ seq_printf(m, "<%pK>", (void *)addr);
102472 else
102473 seq_printf(m, "%s", symname);
102474+#endif
102475 }
102476
102477 static int tstats_show(struct seq_file *m, void *v)
102478@@ -300,8 +304,8 @@ static int tstats_show(struct seq_file *m, void *v)
102479
102480 seq_puts(m, "Timer Stats Version: v0.3\n");
102481 seq_printf(m, "Sample period: %ld.%03ld s\n", period.tv_sec, ms);
102482- if (atomic_read(&overflow_count))
102483- seq_printf(m, "Overflow: %d entries\n", atomic_read(&overflow_count));
102484+ if (atomic_read_unchecked(&overflow_count))
102485+ seq_printf(m, "Overflow: %d entries\n", atomic_read_unchecked(&overflow_count));
102486 seq_printf(m, "Collection: %s\n", timer_stats_active ? "active" : "inactive");
102487
102488 for (i = 0; i < nr_entries; i++) {
102489@@ -417,7 +421,11 @@ static int __init init_tstats_procfs(void)
102490 {
102491 struct proc_dir_entry *pe;
102492
102493+#ifdef CONFIG_GRKERNSEC_PROC_ADD
102494+ pe = proc_create("timer_stats", 0600, NULL, &tstats_fops);
102495+#else
102496 pe = proc_create("timer_stats", 0644, NULL, &tstats_fops);
102497+#endif
102498 if (!pe)
102499 return -ENOMEM;
102500 return 0;
102501diff --git a/kernel/torture.c b/kernel/torture.c
102502index dd70993..0bf694b 100644
102503--- a/kernel/torture.c
102504+++ b/kernel/torture.c
102505@@ -482,7 +482,7 @@ static int torture_shutdown_notify(struct notifier_block *unused1,
102506 mutex_lock(&fullstop_mutex);
102507 if (ACCESS_ONCE(fullstop) == FULLSTOP_DONTSTOP) {
102508 VERBOSE_TOROUT_STRING("Unscheduled system shutdown detected");
102509- ACCESS_ONCE(fullstop) = FULLSTOP_SHUTDOWN;
102510+ ACCESS_ONCE_RW(fullstop) = FULLSTOP_SHUTDOWN;
102511 } else {
102512 pr_warn("Concurrent rmmod and shutdown illegal!\n");
102513 }
102514@@ -549,14 +549,14 @@ static int torture_stutter(void *arg)
102515 if (!torture_must_stop()) {
102516 if (stutter > 1) {
102517 schedule_timeout_interruptible(stutter - 1);
102518- ACCESS_ONCE(stutter_pause_test) = 2;
102519+ ACCESS_ONCE_RW(stutter_pause_test) = 2;
102520 }
102521 schedule_timeout_interruptible(1);
102522- ACCESS_ONCE(stutter_pause_test) = 1;
102523+ ACCESS_ONCE_RW(stutter_pause_test) = 1;
102524 }
102525 if (!torture_must_stop())
102526 schedule_timeout_interruptible(stutter);
102527- ACCESS_ONCE(stutter_pause_test) = 0;
102528+ ACCESS_ONCE_RW(stutter_pause_test) = 0;
102529 torture_shutdown_absorb("torture_stutter");
102530 } while (!torture_must_stop());
102531 torture_kthread_stopping("torture_stutter");
102532@@ -648,7 +648,7 @@ bool torture_cleanup_begin(void)
102533 schedule_timeout_uninterruptible(10);
102534 return true;
102535 }
102536- ACCESS_ONCE(fullstop) = FULLSTOP_RMMOD;
102537+ ACCESS_ONCE_RW(fullstop) = FULLSTOP_RMMOD;
102538 mutex_unlock(&fullstop_mutex);
102539 torture_shutdown_cleanup();
102540 torture_shuffle_cleanup();
102541diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c
102542index 483cecf..ac46091 100644
102543--- a/kernel/trace/blktrace.c
102544+++ b/kernel/trace/blktrace.c
102545@@ -328,7 +328,7 @@ static ssize_t blk_dropped_read(struct file *filp, char __user *buffer,
102546 struct blk_trace *bt = filp->private_data;
102547 char buf[16];
102548
102549- snprintf(buf, sizeof(buf), "%u\n", atomic_read(&bt->dropped));
102550+ snprintf(buf, sizeof(buf), "%u\n", atomic_read_unchecked(&bt->dropped));
102551
102552 return simple_read_from_buffer(buffer, count, ppos, buf, strlen(buf));
102553 }
102554@@ -386,7 +386,7 @@ static int blk_subbuf_start_callback(struct rchan_buf *buf, void *subbuf,
102555 return 1;
102556
102557 bt = buf->chan->private_data;
102558- atomic_inc(&bt->dropped);
102559+ atomic_inc_unchecked(&bt->dropped);
102560 return 0;
102561 }
102562
102563@@ -487,7 +487,7 @@ int do_blk_trace_setup(struct request_queue *q, char *name, dev_t dev,
102564
102565 bt->dir = dir;
102566 bt->dev = dev;
102567- atomic_set(&bt->dropped, 0);
102568+ atomic_set_unchecked(&bt->dropped, 0);
102569 INIT_LIST_HEAD(&bt->running_list);
102570
102571 ret = -EIO;
102572diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
102573index 4f22802..bd268b1 100644
102574--- a/kernel/trace/ftrace.c
102575+++ b/kernel/trace/ftrace.c
102576@@ -2382,12 +2382,17 @@ ftrace_code_disable(struct module *mod, struct dyn_ftrace *rec)
102577 if (unlikely(ftrace_disabled))
102578 return 0;
102579
102580+ ret = ftrace_arch_code_modify_prepare();
102581+ FTRACE_WARN_ON(ret);
102582+ if (ret)
102583+ return 0;
102584+
102585 ret = ftrace_make_nop(mod, rec, MCOUNT_ADDR);
102586+ FTRACE_WARN_ON(ftrace_arch_code_modify_post_process());
102587 if (ret) {
102588 ftrace_bug(ret, rec);
102589- return 0;
102590 }
102591- return 1;
102592+ return ret ? 0 : 1;
102593 }
102594
102595 /*
102596@@ -4776,8 +4781,10 @@ static int ftrace_process_locs(struct module *mod,
102597 if (!count)
102598 return 0;
102599
102600+ pax_open_kernel();
102601 sort(start, count, sizeof(*start),
102602 ftrace_cmp_ips, ftrace_swap_ips);
102603+ pax_close_kernel();
102604
102605 start_pg = ftrace_allocate_pages(count);
102606 if (!start_pg)
102607@@ -5653,7 +5660,7 @@ static int alloc_retstack_tasklist(struct ftrace_ret_stack **ret_stack_list)
102608
102609 if (t->ret_stack == NULL) {
102610 atomic_set(&t->tracing_graph_pause, 0);
102611- atomic_set(&t->trace_overrun, 0);
102612+ atomic_set_unchecked(&t->trace_overrun, 0);
102613 t->curr_ret_stack = -1;
102614 /* Make sure the tasks see the -1 first: */
102615 smp_wmb();
102616@@ -5876,7 +5883,7 @@ static void
102617 graph_init_task(struct task_struct *t, struct ftrace_ret_stack *ret_stack)
102618 {
102619 atomic_set(&t->tracing_graph_pause, 0);
102620- atomic_set(&t->trace_overrun, 0);
102621+ atomic_set_unchecked(&t->trace_overrun, 0);
102622 t->ftrace_timestamp = 0;
102623 /* make curr_ret_stack visible before we add the ret_stack */
102624 smp_wmb();
102625diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c
102626index 922048a..bb71a55 100644
102627--- a/kernel/trace/ring_buffer.c
102628+++ b/kernel/trace/ring_buffer.c
102629@@ -348,9 +348,9 @@ struct buffer_data_page {
102630 */
102631 struct buffer_page {
102632 struct list_head list; /* list of buffer pages */
102633- local_t write; /* index for next write */
102634+ local_unchecked_t write; /* index for next write */
102635 unsigned read; /* index for next read */
102636- local_t entries; /* entries on this page */
102637+ local_unchecked_t entries; /* entries on this page */
102638 unsigned long real_end; /* real end of data */
102639 struct buffer_data_page *page; /* Actual data page */
102640 };
102641@@ -471,11 +471,11 @@ struct ring_buffer_per_cpu {
102642 unsigned long last_overrun;
102643 local_t entries_bytes;
102644 local_t entries;
102645- local_t overrun;
102646- local_t commit_overrun;
102647- local_t dropped_events;
102648+ local_unchecked_t overrun;
102649+ local_unchecked_t commit_overrun;
102650+ local_unchecked_t dropped_events;
102651 local_t committing;
102652- local_t commits;
102653+ local_unchecked_t commits;
102654 unsigned long read;
102655 unsigned long read_bytes;
102656 u64 write_stamp;
102657@@ -1045,8 +1045,8 @@ static int rb_tail_page_update(struct ring_buffer_per_cpu *cpu_buffer,
102658 *
102659 * We add a counter to the write field to denote this.
102660 */
102661- old_write = local_add_return(RB_WRITE_INTCNT, &next_page->write);
102662- old_entries = local_add_return(RB_WRITE_INTCNT, &next_page->entries);
102663+ old_write = local_add_return_unchecked(RB_WRITE_INTCNT, &next_page->write);
102664+ old_entries = local_add_return_unchecked(RB_WRITE_INTCNT, &next_page->entries);
102665
102666 /*
102667 * Just make sure we have seen our old_write and synchronize
102668@@ -1074,8 +1074,8 @@ static int rb_tail_page_update(struct ring_buffer_per_cpu *cpu_buffer,
102669 * cmpxchg to only update if an interrupt did not already
102670 * do it for us. If the cmpxchg fails, we don't care.
102671 */
102672- (void)local_cmpxchg(&next_page->write, old_write, val);
102673- (void)local_cmpxchg(&next_page->entries, old_entries, eval);
102674+ (void)local_cmpxchg_unchecked(&next_page->write, old_write, val);
102675+ (void)local_cmpxchg_unchecked(&next_page->entries, old_entries, eval);
102676
102677 /*
102678 * No need to worry about races with clearing out the commit.
102679@@ -1443,12 +1443,12 @@ static void rb_reset_cpu(struct ring_buffer_per_cpu *cpu_buffer);
102680
102681 static inline unsigned long rb_page_entries(struct buffer_page *bpage)
102682 {
102683- return local_read(&bpage->entries) & RB_WRITE_MASK;
102684+ return local_read_unchecked(&bpage->entries) & RB_WRITE_MASK;
102685 }
102686
102687 static inline unsigned long rb_page_write(struct buffer_page *bpage)
102688 {
102689- return local_read(&bpage->write) & RB_WRITE_MASK;
102690+ return local_read_unchecked(&bpage->write) & RB_WRITE_MASK;
102691 }
102692
102693 static int
102694@@ -1543,7 +1543,7 @@ rb_remove_pages(struct ring_buffer_per_cpu *cpu_buffer, unsigned int nr_pages)
102695 * bytes consumed in ring buffer from here.
102696 * Increment overrun to account for the lost events.
102697 */
102698- local_add(page_entries, &cpu_buffer->overrun);
102699+ local_add_unchecked(page_entries, &cpu_buffer->overrun);
102700 local_sub(BUF_PAGE_SIZE, &cpu_buffer->entries_bytes);
102701 }
102702
102703@@ -2105,7 +2105,7 @@ rb_handle_head_page(struct ring_buffer_per_cpu *cpu_buffer,
102704 * it is our responsibility to update
102705 * the counters.
102706 */
102707- local_add(entries, &cpu_buffer->overrun);
102708+ local_add_unchecked(entries, &cpu_buffer->overrun);
102709 local_sub(BUF_PAGE_SIZE, &cpu_buffer->entries_bytes);
102710
102711 /*
102712@@ -2255,7 +2255,7 @@ rb_reset_tail(struct ring_buffer_per_cpu *cpu_buffer,
102713 if (tail == BUF_PAGE_SIZE)
102714 tail_page->real_end = 0;
102715
102716- local_sub(length, &tail_page->write);
102717+ local_sub_unchecked(length, &tail_page->write);
102718 return;
102719 }
102720
102721@@ -2290,7 +2290,7 @@ rb_reset_tail(struct ring_buffer_per_cpu *cpu_buffer,
102722 rb_event_set_padding(event);
102723
102724 /* Set the write back to the previous setting */
102725- local_sub(length, &tail_page->write);
102726+ local_sub_unchecked(length, &tail_page->write);
102727 return;
102728 }
102729
102730@@ -2302,7 +2302,7 @@ rb_reset_tail(struct ring_buffer_per_cpu *cpu_buffer,
102731
102732 /* Set write to end of buffer */
102733 length = (tail + length) - BUF_PAGE_SIZE;
102734- local_sub(length, &tail_page->write);
102735+ local_sub_unchecked(length, &tail_page->write);
102736 }
102737
102738 /*
102739@@ -2328,7 +2328,7 @@ rb_move_tail(struct ring_buffer_per_cpu *cpu_buffer,
102740 * about it.
102741 */
102742 if (unlikely(next_page == commit_page)) {
102743- local_inc(&cpu_buffer->commit_overrun);
102744+ local_inc_unchecked(&cpu_buffer->commit_overrun);
102745 goto out_reset;
102746 }
102747
102748@@ -2358,7 +2358,7 @@ rb_move_tail(struct ring_buffer_per_cpu *cpu_buffer,
102749 * this is easy, just stop here.
102750 */
102751 if (!(buffer->flags & RB_FL_OVERWRITE)) {
102752- local_inc(&cpu_buffer->dropped_events);
102753+ local_inc_unchecked(&cpu_buffer->dropped_events);
102754 goto out_reset;
102755 }
102756
102757@@ -2384,7 +2384,7 @@ rb_move_tail(struct ring_buffer_per_cpu *cpu_buffer,
102758 cpu_buffer->tail_page) &&
102759 (cpu_buffer->commit_page ==
102760 cpu_buffer->reader_page))) {
102761- local_inc(&cpu_buffer->commit_overrun);
102762+ local_inc_unchecked(&cpu_buffer->commit_overrun);
102763 goto out_reset;
102764 }
102765 }
102766@@ -2432,7 +2432,7 @@ __rb_reserve_next(struct ring_buffer_per_cpu *cpu_buffer,
102767 length += RB_LEN_TIME_EXTEND;
102768
102769 tail_page = cpu_buffer->tail_page;
102770- write = local_add_return(length, &tail_page->write);
102771+ write = local_add_return_unchecked(length, &tail_page->write);
102772
102773 /* set write to only the index of the write */
102774 write &= RB_WRITE_MASK;
102775@@ -2456,7 +2456,7 @@ __rb_reserve_next(struct ring_buffer_per_cpu *cpu_buffer,
102776 kmemcheck_annotate_bitfield(event, bitfield);
102777 rb_update_event(cpu_buffer, event, length, add_timestamp, delta);
102778
102779- local_inc(&tail_page->entries);
102780+ local_inc_unchecked(&tail_page->entries);
102781
102782 /*
102783 * If this is the first commit on the page, then update
102784@@ -2489,7 +2489,7 @@ rb_try_to_discard(struct ring_buffer_per_cpu *cpu_buffer,
102785
102786 if (bpage->page == (void *)addr && rb_page_write(bpage) == old_index) {
102787 unsigned long write_mask =
102788- local_read(&bpage->write) & ~RB_WRITE_MASK;
102789+ local_read_unchecked(&bpage->write) & ~RB_WRITE_MASK;
102790 unsigned long event_length = rb_event_length(event);
102791 /*
102792 * This is on the tail page. It is possible that
102793@@ -2499,7 +2499,7 @@ rb_try_to_discard(struct ring_buffer_per_cpu *cpu_buffer,
102794 */
102795 old_index += write_mask;
102796 new_index += write_mask;
102797- index = local_cmpxchg(&bpage->write, old_index, new_index);
102798+ index = local_cmpxchg_unchecked(&bpage->write, old_index, new_index);
102799 if (index == old_index) {
102800 /* update counters */
102801 local_sub(event_length, &cpu_buffer->entries_bytes);
102802@@ -2514,7 +2514,7 @@ rb_try_to_discard(struct ring_buffer_per_cpu *cpu_buffer,
102803 static void rb_start_commit(struct ring_buffer_per_cpu *cpu_buffer)
102804 {
102805 local_inc(&cpu_buffer->committing);
102806- local_inc(&cpu_buffer->commits);
102807+ local_inc_unchecked(&cpu_buffer->commits);
102808 }
102809
102810 static inline void rb_end_commit(struct ring_buffer_per_cpu *cpu_buffer)
102811@@ -2526,7 +2526,7 @@ static inline void rb_end_commit(struct ring_buffer_per_cpu *cpu_buffer)
102812 return;
102813
102814 again:
102815- commits = local_read(&cpu_buffer->commits);
102816+ commits = local_read_unchecked(&cpu_buffer->commits);
102817 /* synchronize with interrupts */
102818 barrier();
102819 if (local_read(&cpu_buffer->committing) == 1)
102820@@ -2542,7 +2542,7 @@ static inline void rb_end_commit(struct ring_buffer_per_cpu *cpu_buffer)
102821 * updating of the commit page and the clearing of the
102822 * committing counter.
102823 */
102824- if (unlikely(local_read(&cpu_buffer->commits) != commits) &&
102825+ if (unlikely(local_read_unchecked(&cpu_buffer->commits) != commits) &&
102826 !local_read(&cpu_buffer->committing)) {
102827 local_inc(&cpu_buffer->committing);
102828 goto again;
102829@@ -2572,7 +2572,7 @@ rb_reserve_next_event(struct ring_buffer *buffer,
102830 barrier();
102831 if (unlikely(ACCESS_ONCE(cpu_buffer->buffer) != buffer)) {
102832 local_dec(&cpu_buffer->committing);
102833- local_dec(&cpu_buffer->commits);
102834+ local_dec_unchecked(&cpu_buffer->commits);
102835 return NULL;
102836 }
102837 #endif
102838@@ -2901,7 +2901,7 @@ rb_decrement_entry(struct ring_buffer_per_cpu *cpu_buffer,
102839
102840 /* Do the likely case first */
102841 if (likely(bpage->page == (void *)addr)) {
102842- local_dec(&bpage->entries);
102843+ local_dec_unchecked(&bpage->entries);
102844 return;
102845 }
102846
102847@@ -2913,7 +2913,7 @@ rb_decrement_entry(struct ring_buffer_per_cpu *cpu_buffer,
102848 start = bpage;
102849 do {
102850 if (bpage->page == (void *)addr) {
102851- local_dec(&bpage->entries);
102852+ local_dec_unchecked(&bpage->entries);
102853 return;
102854 }
102855 rb_inc_page(cpu_buffer, &bpage);
102856@@ -3197,7 +3197,7 @@ static inline unsigned long
102857 rb_num_of_entries(struct ring_buffer_per_cpu *cpu_buffer)
102858 {
102859 return local_read(&cpu_buffer->entries) -
102860- (local_read(&cpu_buffer->overrun) + cpu_buffer->read);
102861+ (local_read_unchecked(&cpu_buffer->overrun) + cpu_buffer->read);
102862 }
102863
102864 /**
102865@@ -3286,7 +3286,7 @@ unsigned long ring_buffer_overrun_cpu(struct ring_buffer *buffer, int cpu)
102866 return 0;
102867
102868 cpu_buffer = buffer->buffers[cpu];
102869- ret = local_read(&cpu_buffer->overrun);
102870+ ret = local_read_unchecked(&cpu_buffer->overrun);
102871
102872 return ret;
102873 }
102874@@ -3309,7 +3309,7 @@ ring_buffer_commit_overrun_cpu(struct ring_buffer *buffer, int cpu)
102875 return 0;
102876
102877 cpu_buffer = buffer->buffers[cpu];
102878- ret = local_read(&cpu_buffer->commit_overrun);
102879+ ret = local_read_unchecked(&cpu_buffer->commit_overrun);
102880
102881 return ret;
102882 }
102883@@ -3331,7 +3331,7 @@ ring_buffer_dropped_events_cpu(struct ring_buffer *buffer, int cpu)
102884 return 0;
102885
102886 cpu_buffer = buffer->buffers[cpu];
102887- ret = local_read(&cpu_buffer->dropped_events);
102888+ ret = local_read_unchecked(&cpu_buffer->dropped_events);
102889
102890 return ret;
102891 }
102892@@ -3394,7 +3394,7 @@ unsigned long ring_buffer_overruns(struct ring_buffer *buffer)
102893 /* if you care about this being correct, lock the buffer */
102894 for_each_buffer_cpu(buffer, cpu) {
102895 cpu_buffer = buffer->buffers[cpu];
102896- overruns += local_read(&cpu_buffer->overrun);
102897+ overruns += local_read_unchecked(&cpu_buffer->overrun);
102898 }
102899
102900 return overruns;
102901@@ -3565,8 +3565,8 @@ rb_get_reader_page(struct ring_buffer_per_cpu *cpu_buffer)
102902 /*
102903 * Reset the reader page to size zero.
102904 */
102905- local_set(&cpu_buffer->reader_page->write, 0);
102906- local_set(&cpu_buffer->reader_page->entries, 0);
102907+ local_set_unchecked(&cpu_buffer->reader_page->write, 0);
102908+ local_set_unchecked(&cpu_buffer->reader_page->entries, 0);
102909 local_set(&cpu_buffer->reader_page->page->commit, 0);
102910 cpu_buffer->reader_page->real_end = 0;
102911
102912@@ -3600,7 +3600,7 @@ rb_get_reader_page(struct ring_buffer_per_cpu *cpu_buffer)
102913 * want to compare with the last_overrun.
102914 */
102915 smp_mb();
102916- overwrite = local_read(&(cpu_buffer->overrun));
102917+ overwrite = local_read_unchecked(&(cpu_buffer->overrun));
102918
102919 /*
102920 * Here's the tricky part.
102921@@ -4172,8 +4172,8 @@ rb_reset_cpu(struct ring_buffer_per_cpu *cpu_buffer)
102922
102923 cpu_buffer->head_page
102924 = list_entry(cpu_buffer->pages, struct buffer_page, list);
102925- local_set(&cpu_buffer->head_page->write, 0);
102926- local_set(&cpu_buffer->head_page->entries, 0);
102927+ local_set_unchecked(&cpu_buffer->head_page->write, 0);
102928+ local_set_unchecked(&cpu_buffer->head_page->entries, 0);
102929 local_set(&cpu_buffer->head_page->page->commit, 0);
102930
102931 cpu_buffer->head_page->read = 0;
102932@@ -4183,18 +4183,18 @@ rb_reset_cpu(struct ring_buffer_per_cpu *cpu_buffer)
102933
102934 INIT_LIST_HEAD(&cpu_buffer->reader_page->list);
102935 INIT_LIST_HEAD(&cpu_buffer->new_pages);
102936- local_set(&cpu_buffer->reader_page->write, 0);
102937- local_set(&cpu_buffer->reader_page->entries, 0);
102938+ local_set_unchecked(&cpu_buffer->reader_page->write, 0);
102939+ local_set_unchecked(&cpu_buffer->reader_page->entries, 0);
102940 local_set(&cpu_buffer->reader_page->page->commit, 0);
102941 cpu_buffer->reader_page->read = 0;
102942
102943 local_set(&cpu_buffer->entries_bytes, 0);
102944- local_set(&cpu_buffer->overrun, 0);
102945- local_set(&cpu_buffer->commit_overrun, 0);
102946- local_set(&cpu_buffer->dropped_events, 0);
102947+ local_set_unchecked(&cpu_buffer->overrun, 0);
102948+ local_set_unchecked(&cpu_buffer->commit_overrun, 0);
102949+ local_set_unchecked(&cpu_buffer->dropped_events, 0);
102950 local_set(&cpu_buffer->entries, 0);
102951 local_set(&cpu_buffer->committing, 0);
102952- local_set(&cpu_buffer->commits, 0);
102953+ local_set_unchecked(&cpu_buffer->commits, 0);
102954 cpu_buffer->read = 0;
102955 cpu_buffer->read_bytes = 0;
102956
102957@@ -4595,8 +4595,8 @@ int ring_buffer_read_page(struct ring_buffer *buffer,
102958 rb_init_page(bpage);
102959 bpage = reader->page;
102960 reader->page = *data_page;
102961- local_set(&reader->write, 0);
102962- local_set(&reader->entries, 0);
102963+ local_set_unchecked(&reader->write, 0);
102964+ local_set_unchecked(&reader->entries, 0);
102965 reader->read = 0;
102966 *data_page = bpage;
102967
102968diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
102969index 62c6506..5c25989 100644
102970--- a/kernel/trace/trace.c
102971+++ b/kernel/trace/trace.c
102972@@ -3500,7 +3500,7 @@ int trace_keep_overwrite(struct tracer *tracer, u32 mask, int set)
102973 return 0;
102974 }
102975
102976-int set_tracer_flag(struct trace_array *tr, unsigned int mask, int enabled)
102977+int set_tracer_flag(struct trace_array *tr, unsigned long mask, int enabled)
102978 {
102979 /* do nothing if flag is already set */
102980 if (!!(trace_flags & mask) == !!enabled)
102981diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
102982index dd8205a..1aae87a 100644
102983--- a/kernel/trace/trace.h
102984+++ b/kernel/trace/trace.h
102985@@ -1271,7 +1271,7 @@ extern const char *__stop___tracepoint_str[];
102986 void trace_printk_init_buffers(void);
102987 void trace_printk_start_comm(void);
102988 int trace_keep_overwrite(struct tracer *tracer, u32 mask, int set);
102989-int set_tracer_flag(struct trace_array *tr, unsigned int mask, int enabled);
102990+int set_tracer_flag(struct trace_array *tr, unsigned long mask, int enabled);
102991
102992 /*
102993 * Normal trace_printk() and friends allocates special buffers
102994diff --git a/kernel/trace/trace_clock.c b/kernel/trace/trace_clock.c
102995index 57b67b1..66082a9 100644
102996--- a/kernel/trace/trace_clock.c
102997+++ b/kernel/trace/trace_clock.c
102998@@ -124,7 +124,7 @@ u64 notrace trace_clock_global(void)
102999 return now;
103000 }
103001
103002-static atomic64_t trace_counter;
103003+static atomic64_unchecked_t trace_counter;
103004
103005 /*
103006 * trace_clock_counter(): simply an atomic counter.
103007@@ -133,5 +133,5 @@ static atomic64_t trace_counter;
103008 */
103009 u64 notrace trace_clock_counter(void)
103010 {
103011- return atomic64_add_return(1, &trace_counter);
103012+ return atomic64_inc_return_unchecked(&trace_counter);
103013 }
103014diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c
103015index a9c10a3..1864f6b 100644
103016--- a/kernel/trace/trace_events.c
103017+++ b/kernel/trace/trace_events.c
103018@@ -1762,7 +1762,6 @@ __trace_early_add_new_event(struct ftrace_event_call *call,
103019 return 0;
103020 }
103021
103022-struct ftrace_module_file_ops;
103023 static void __add_event_to_tracers(struct ftrace_event_call *call);
103024
103025 /* Add an additional event_call dynamically */
103026diff --git a/kernel/trace/trace_events_filter.c b/kernel/trace/trace_events_filter.c
103027index 7f2e97c..085a257 100644
103028--- a/kernel/trace/trace_events_filter.c
103029+++ b/kernel/trace/trace_events_filter.c
103030@@ -1056,6 +1056,9 @@ static void parse_init(struct filter_parse_state *ps,
103031
103032 static char infix_next(struct filter_parse_state *ps)
103033 {
103034+ if (!ps->infix.cnt)
103035+ return 0;
103036+
103037 ps->infix.cnt--;
103038
103039 return ps->infix.string[ps->infix.tail++];
103040@@ -1071,6 +1074,9 @@ static char infix_peek(struct filter_parse_state *ps)
103041
103042 static void infix_advance(struct filter_parse_state *ps)
103043 {
103044+ if (!ps->infix.cnt)
103045+ return;
103046+
103047 ps->infix.cnt--;
103048 ps->infix.tail++;
103049 }
103050diff --git a/kernel/trace/trace_functions_graph.c b/kernel/trace/trace_functions_graph.c
103051index b6fce36..d9f11a3 100644
103052--- a/kernel/trace/trace_functions_graph.c
103053+++ b/kernel/trace/trace_functions_graph.c
103054@@ -133,7 +133,7 @@ ftrace_push_return_trace(unsigned long ret, unsigned long func, int *depth,
103055
103056 /* The return trace stack is full */
103057 if (current->curr_ret_stack == FTRACE_RETFUNC_DEPTH - 1) {
103058- atomic_inc(&current->trace_overrun);
103059+ atomic_inc_unchecked(&current->trace_overrun);
103060 return -EBUSY;
103061 }
103062
103063@@ -230,7 +230,7 @@ ftrace_pop_return_trace(struct ftrace_graph_ret *trace, unsigned long *ret,
103064 *ret = current->ret_stack[index].ret;
103065 trace->func = current->ret_stack[index].func;
103066 trace->calltime = current->ret_stack[index].calltime;
103067- trace->overrun = atomic_read(&current->trace_overrun);
103068+ trace->overrun = atomic_read_unchecked(&current->trace_overrun);
103069 trace->depth = index;
103070 }
103071
103072diff --git a/kernel/trace/trace_mmiotrace.c b/kernel/trace/trace_mmiotrace.c
103073index 7a9ba62..2e0e4a1 100644
103074--- a/kernel/trace/trace_mmiotrace.c
103075+++ b/kernel/trace/trace_mmiotrace.c
103076@@ -24,7 +24,7 @@ struct header_iter {
103077 static struct trace_array *mmio_trace_array;
103078 static bool overrun_detected;
103079 static unsigned long prev_overruns;
103080-static atomic_t dropped_count;
103081+static atomic_unchecked_t dropped_count;
103082
103083 static void mmio_reset_data(struct trace_array *tr)
103084 {
103085@@ -124,7 +124,7 @@ static void mmio_close(struct trace_iterator *iter)
103086
103087 static unsigned long count_overruns(struct trace_iterator *iter)
103088 {
103089- unsigned long cnt = atomic_xchg(&dropped_count, 0);
103090+ unsigned long cnt = atomic_xchg_unchecked(&dropped_count, 0);
103091 unsigned long over = ring_buffer_overruns(iter->trace_buffer->buffer);
103092
103093 if (over > prev_overruns)
103094@@ -307,7 +307,7 @@ static void __trace_mmiotrace_rw(struct trace_array *tr,
103095 event = trace_buffer_lock_reserve(buffer, TRACE_MMIO_RW,
103096 sizeof(*entry), 0, pc);
103097 if (!event) {
103098- atomic_inc(&dropped_count);
103099+ atomic_inc_unchecked(&dropped_count);
103100 return;
103101 }
103102 entry = ring_buffer_event_data(event);
103103@@ -337,7 +337,7 @@ static void __trace_mmiotrace_map(struct trace_array *tr,
103104 event = trace_buffer_lock_reserve(buffer, TRACE_MMIO_MAP,
103105 sizeof(*entry), 0, pc);
103106 if (!event) {
103107- atomic_inc(&dropped_count);
103108+ atomic_inc_unchecked(&dropped_count);
103109 return;
103110 }
103111 entry = ring_buffer_event_data(event);
103112diff --git a/kernel/trace/trace_output.c b/kernel/trace/trace_output.c
103113index 692bf71..6d9a9cd 100644
103114--- a/kernel/trace/trace_output.c
103115+++ b/kernel/trace/trace_output.c
103116@@ -751,14 +751,16 @@ int register_ftrace_event(struct trace_event *event)
103117 goto out;
103118 }
103119
103120+ pax_open_kernel();
103121 if (event->funcs->trace == NULL)
103122- event->funcs->trace = trace_nop_print;
103123+ *(void **)&event->funcs->trace = trace_nop_print;
103124 if (event->funcs->raw == NULL)
103125- event->funcs->raw = trace_nop_print;
103126+ *(void **)&event->funcs->raw = trace_nop_print;
103127 if (event->funcs->hex == NULL)
103128- event->funcs->hex = trace_nop_print;
103129+ *(void **)&event->funcs->hex = trace_nop_print;
103130 if (event->funcs->binary == NULL)
103131- event->funcs->binary = trace_nop_print;
103132+ *(void **)&event->funcs->binary = trace_nop_print;
103133+ pax_close_kernel();
103134
103135 key = event->type & (EVENT_HASHSIZE - 1);
103136
103137diff --git a/kernel/trace/trace_seq.c b/kernel/trace/trace_seq.c
103138index e694c9f..6775a38 100644
103139--- a/kernel/trace/trace_seq.c
103140+++ b/kernel/trace/trace_seq.c
103141@@ -337,7 +337,7 @@ int trace_seq_path(struct trace_seq *s, const struct path *path)
103142 return 0;
103143 }
103144
103145- seq_buf_path(&s->seq, path, "\n");
103146+ seq_buf_path(&s->seq, path, "\n\\");
103147
103148 if (unlikely(seq_buf_has_overflowed(&s->seq))) {
103149 s->seq.len = save_len;
103150diff --git a/kernel/trace/trace_stack.c b/kernel/trace/trace_stack.c
103151index c3e4fcf..ef6cc43 100644
103152--- a/kernel/trace/trace_stack.c
103153+++ b/kernel/trace/trace_stack.c
103154@@ -88,7 +88,7 @@ check_stack(unsigned long ip, unsigned long *stack)
103155 return;
103156
103157 /* we do not handle interrupt stacks yet */
103158- if (!object_is_on_stack(stack))
103159+ if (!object_starts_on_stack(stack))
103160 return;
103161
103162 local_irq_save(flags);
103163diff --git a/kernel/trace/trace_syscalls.c b/kernel/trace/trace_syscalls.c
103164index f97f6e3..d367b48 100644
103165--- a/kernel/trace/trace_syscalls.c
103166+++ b/kernel/trace/trace_syscalls.c
103167@@ -590,6 +590,8 @@ static int perf_sysenter_enable(struct ftrace_event_call *call)
103168 int num;
103169
103170 num = ((struct syscall_metadata *)call->data)->syscall_nr;
103171+ if (WARN_ON_ONCE(num < 0 || num >= NR_syscalls))
103172+ return -EINVAL;
103173
103174 mutex_lock(&syscall_trace_lock);
103175 if (!sys_perf_refcount_enter)
103176@@ -610,6 +612,8 @@ static void perf_sysenter_disable(struct ftrace_event_call *call)
103177 int num;
103178
103179 num = ((struct syscall_metadata *)call->data)->syscall_nr;
103180+ if (WARN_ON_ONCE(num < 0 || num >= NR_syscalls))
103181+ return;
103182
103183 mutex_lock(&syscall_trace_lock);
103184 sys_perf_refcount_enter--;
103185@@ -662,6 +666,8 @@ static int perf_sysexit_enable(struct ftrace_event_call *call)
103186 int num;
103187
103188 num = ((struct syscall_metadata *)call->data)->syscall_nr;
103189+ if (WARN_ON_ONCE(num < 0 || num >= NR_syscalls))
103190+ return -EINVAL;
103191
103192 mutex_lock(&syscall_trace_lock);
103193 if (!sys_perf_refcount_exit)
103194@@ -682,6 +688,8 @@ static void perf_sysexit_disable(struct ftrace_event_call *call)
103195 int num;
103196
103197 num = ((struct syscall_metadata *)call->data)->syscall_nr;
103198+ if (WARN_ON_ONCE(num < 0 || num >= NR_syscalls))
103199+ return;
103200
103201 mutex_lock(&syscall_trace_lock);
103202 sys_perf_refcount_exit--;
103203diff --git a/kernel/user_namespace.c b/kernel/user_namespace.c
103204index 4109f83..fe1f830 100644
103205--- a/kernel/user_namespace.c
103206+++ b/kernel/user_namespace.c
103207@@ -83,6 +83,21 @@ int create_user_ns(struct cred *new)
103208 !kgid_has_mapping(parent_ns, group))
103209 return -EPERM;
103210
103211+#ifdef CONFIG_GRKERNSEC
103212+ /*
103213+ * This doesn't really inspire confidence:
103214+ * http://marc.info/?l=linux-kernel&m=135543612731939&w=2
103215+ * http://marc.info/?l=linux-kernel&m=135545831607095&w=2
103216+ * Increases kernel attack surface in areas developers
103217+ * previously cared little about ("low importance due
103218+ * to requiring "root" capability")
103219+ * To be removed when this code receives *proper* review
103220+ */
103221+ if (!capable(CAP_SYS_ADMIN) || !capable(CAP_SETUID) ||
103222+ !capable(CAP_SETGID))
103223+ return -EPERM;
103224+#endif
103225+
103226 ns = kmem_cache_zalloc(user_ns_cachep, GFP_KERNEL);
103227 if (!ns)
103228 return -ENOMEM;
103229@@ -980,7 +995,7 @@ static int userns_install(struct nsproxy *nsproxy, struct ns_common *ns)
103230 if (atomic_read(&current->mm->mm_users) > 1)
103231 return -EINVAL;
103232
103233- if (current->fs->users != 1)
103234+ if (atomic_read(&current->fs->users) != 1)
103235 return -EINVAL;
103236
103237 if (!ns_capable(user_ns, CAP_SYS_ADMIN))
103238diff --git a/kernel/utsname_sysctl.c b/kernel/utsname_sysctl.c
103239index c8eac43..4b5f08f 100644
103240--- a/kernel/utsname_sysctl.c
103241+++ b/kernel/utsname_sysctl.c
103242@@ -47,7 +47,7 @@ static void put_uts(struct ctl_table *table, int write, void *which)
103243 static int proc_do_uts_string(struct ctl_table *table, int write,
103244 void __user *buffer, size_t *lenp, loff_t *ppos)
103245 {
103246- struct ctl_table uts_table;
103247+ ctl_table_no_const uts_table;
103248 int r;
103249 memcpy(&uts_table, table, sizeof(uts_table));
103250 uts_table.data = get_uts(table, write);
103251diff --git a/kernel/watchdog.c b/kernel/watchdog.c
103252index 3174bf8..3553520 100644
103253--- a/kernel/watchdog.c
103254+++ b/kernel/watchdog.c
103255@@ -572,7 +572,7 @@ static int watchdog_nmi_enable(unsigned int cpu) { return 0; }
103256 static void watchdog_nmi_disable(unsigned int cpu) { return; }
103257 #endif /* CONFIG_HARDLOCKUP_DETECTOR */
103258
103259-static struct smp_hotplug_thread watchdog_threads = {
103260+static struct smp_hotplug_thread watchdog_threads __read_only = {
103261 .store = &softlockup_watchdog,
103262 .thread_should_run = watchdog_should_run,
103263 .thread_fn = watchdog,
103264diff --git a/kernel/workqueue.c b/kernel/workqueue.c
103265index 41ff75b..5ad683a 100644
103266--- a/kernel/workqueue.c
103267+++ b/kernel/workqueue.c
103268@@ -4564,7 +4564,7 @@ static void rebind_workers(struct worker_pool *pool)
103269 WARN_ON_ONCE(!(worker_flags & WORKER_UNBOUND));
103270 worker_flags |= WORKER_REBOUND;
103271 worker_flags &= ~WORKER_UNBOUND;
103272- ACCESS_ONCE(worker->flags) = worker_flags;
103273+ ACCESS_ONCE_RW(worker->flags) = worker_flags;
103274 }
103275
103276 spin_unlock_irq(&pool->lock);
103277diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
103278index c5cefb3..a4241e3 100644
103279--- a/lib/Kconfig.debug
103280+++ b/lib/Kconfig.debug
103281@@ -923,7 +923,7 @@ config DEBUG_MUTEXES
103282
103283 config DEBUG_WW_MUTEX_SLOWPATH
103284 bool "Wait/wound mutex debugging: Slowpath testing"
103285- depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT
103286+ depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT && !PAX_CONSTIFY_PLUGIN
103287 select DEBUG_LOCK_ALLOC
103288 select DEBUG_SPINLOCK
103289 select DEBUG_MUTEXES
103290@@ -940,7 +940,7 @@ config DEBUG_WW_MUTEX_SLOWPATH
103291
103292 config DEBUG_LOCK_ALLOC
103293 bool "Lock debugging: detect incorrect freeing of live locks"
103294- depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT
103295+ depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT && !PAX_CONSTIFY_PLUGIN
103296 select DEBUG_SPINLOCK
103297 select DEBUG_MUTEXES
103298 select LOCKDEP
103299@@ -954,7 +954,7 @@ config DEBUG_LOCK_ALLOC
103300
103301 config PROVE_LOCKING
103302 bool "Lock debugging: prove locking correctness"
103303- depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT
103304+ depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT && !PAX_CONSTIFY_PLUGIN
103305 select LOCKDEP
103306 select DEBUG_SPINLOCK
103307 select DEBUG_MUTEXES
103308@@ -1005,7 +1005,7 @@ config LOCKDEP
103309
103310 config LOCK_STAT
103311 bool "Lock usage statistics"
103312- depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT
103313+ depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT && !PAX_CONSTIFY_PLUGIN
103314 select LOCKDEP
103315 select DEBUG_SPINLOCK
103316 select DEBUG_MUTEXES
103317@@ -1467,6 +1467,7 @@ config LATENCYTOP
103318 depends on DEBUG_KERNEL
103319 depends on STACKTRACE_SUPPORT
103320 depends on PROC_FS
103321+ depends on !GRKERNSEC_HIDESYM
103322 select FRAME_POINTER if !MIPS && !PPC && !S390 && !MICROBLAZE && !ARM_UNWIND && !ARC
103323 select KALLSYMS
103324 select KALLSYMS_ALL
103325@@ -1483,7 +1484,7 @@ config ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
103326 config DEBUG_STRICT_USER_COPY_CHECKS
103327 bool "Strict user copy size checks"
103328 depends on ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
103329- depends on DEBUG_KERNEL && !TRACE_BRANCH_PROFILING
103330+ depends on DEBUG_KERNEL && !TRACE_BRANCH_PROFILING && !PAX_SIZE_OVERFLOW
103331 help
103332 Enabling this option turns a certain set of sanity checks for user
103333 copy operations into compile time failures.
103334@@ -1614,7 +1615,7 @@ endmenu # runtime tests
103335
103336 config PROVIDE_OHCI1394_DMA_INIT
103337 bool "Remote debugging over FireWire early on boot"
103338- depends on PCI && X86
103339+ depends on PCI && X86 && !GRKERNSEC
103340 help
103341 If you want to debug problems which hang or crash the kernel early
103342 on boot and the crashing machine has a FireWire port, you can use
103343diff --git a/lib/Makefile b/lib/Makefile
103344index 58f74d2..08e011f 100644
103345--- a/lib/Makefile
103346+++ b/lib/Makefile
103347@@ -59,7 +59,7 @@ obj-$(CONFIG_BTREE) += btree.o
103348 obj-$(CONFIG_INTERVAL_TREE) += interval_tree.o
103349 obj-$(CONFIG_ASSOCIATIVE_ARRAY) += assoc_array.o
103350 obj-$(CONFIG_DEBUG_PREEMPT) += smp_processor_id.o
103351-obj-$(CONFIG_DEBUG_LIST) += list_debug.o
103352+obj-y += list_debug.o
103353 obj-$(CONFIG_DEBUG_OBJECTS) += debugobjects.o
103354
103355 ifneq ($(CONFIG_HAVE_DEC_LOCK),y)
103356diff --git a/lib/average.c b/lib/average.c
103357index 114d1be..ab0350c 100644
103358--- a/lib/average.c
103359+++ b/lib/average.c
103360@@ -55,7 +55,7 @@ struct ewma *ewma_add(struct ewma *avg, unsigned long val)
103361 {
103362 unsigned long internal = ACCESS_ONCE(avg->internal);
103363
103364- ACCESS_ONCE(avg->internal) = internal ?
103365+ ACCESS_ONCE_RW(avg->internal) = internal ?
103366 (((internal << avg->weight) - internal) +
103367 (val << avg->factor)) >> avg->weight :
103368 (val << avg->factor);
103369diff --git a/lib/bitmap.c b/lib/bitmap.c
103370index d456f4c1..29a0308 100644
103371--- a/lib/bitmap.c
103372+++ b/lib/bitmap.c
103373@@ -264,7 +264,7 @@ int __bitmap_subset(const unsigned long *bitmap1,
103374 }
103375 EXPORT_SYMBOL(__bitmap_subset);
103376
103377-int __bitmap_weight(const unsigned long *bitmap, unsigned int bits)
103378+int __intentional_overflow(-1) __bitmap_weight(const unsigned long *bitmap, unsigned int bits)
103379 {
103380 unsigned int k, lim = bits/BITS_PER_LONG;
103381 int w = 0;
103382@@ -391,7 +391,7 @@ int __bitmap_parse(const char *buf, unsigned int buflen,
103383 {
103384 int c, old_c, totaldigits, ndigits, nchunks, nbits;
103385 u32 chunk;
103386- const char __user __force *ubuf = (const char __user __force *)buf;
103387+ const char __user *ubuf = (const char __force_user *)buf;
103388
103389 bitmap_zero(maskp, nmaskbits);
103390
103391@@ -476,7 +476,7 @@ int bitmap_parse_user(const char __user *ubuf,
103392 {
103393 if (!access_ok(VERIFY_READ, ubuf, ulen))
103394 return -EFAULT;
103395- return __bitmap_parse((const char __force *)ubuf,
103396+ return __bitmap_parse((const char __force_kernel *)ubuf,
103397 ulen, 1, maskp, nmaskbits);
103398
103399 }
103400@@ -535,7 +535,7 @@ static int __bitmap_parselist(const char *buf, unsigned int buflen,
103401 {
103402 unsigned a, b;
103403 int c, old_c, totaldigits;
103404- const char __user __force *ubuf = (const char __user __force *)buf;
103405+ const char __user *ubuf = (const char __force_user *)buf;
103406 int exp_digit, in_range;
103407
103408 totaldigits = c = 0;
103409@@ -630,7 +630,7 @@ int bitmap_parselist_user(const char __user *ubuf,
103410 {
103411 if (!access_ok(VERIFY_READ, ubuf, ulen))
103412 return -EFAULT;
103413- return __bitmap_parselist((const char __force *)ubuf,
103414+ return __bitmap_parselist((const char __force_kernel *)ubuf,
103415 ulen, 1, maskp, nmaskbits);
103416 }
103417 EXPORT_SYMBOL(bitmap_parselist_user);
103418diff --git a/lib/bug.c b/lib/bug.c
103419index 0c3bd95..5a615a1 100644
103420--- a/lib/bug.c
103421+++ b/lib/bug.c
103422@@ -145,6 +145,8 @@ enum bug_trap_type report_bug(unsigned long bugaddr, struct pt_regs *regs)
103423 return BUG_TRAP_TYPE_NONE;
103424
103425 bug = find_bug(bugaddr);
103426+ if (!bug)
103427+ return BUG_TRAP_TYPE_NONE;
103428
103429 file = NULL;
103430 line = 0;
103431diff --git a/lib/debugobjects.c b/lib/debugobjects.c
103432index 547f7f9..a6d4ba0 100644
103433--- a/lib/debugobjects.c
103434+++ b/lib/debugobjects.c
103435@@ -289,7 +289,7 @@ static void debug_object_is_on_stack(void *addr, int onstack)
103436 if (limit > 4)
103437 return;
103438
103439- is_on_stack = object_is_on_stack(addr);
103440+ is_on_stack = object_starts_on_stack(addr);
103441 if (is_on_stack == onstack)
103442 return;
103443
103444diff --git a/lib/decompress_bunzip2.c b/lib/decompress_bunzip2.c
103445index 6dd0335..1e9c239 100644
103446--- a/lib/decompress_bunzip2.c
103447+++ b/lib/decompress_bunzip2.c
103448@@ -665,7 +665,8 @@ static int INIT start_bunzip(struct bunzip_data **bdp, void *inbuf, long len,
103449
103450 /* Fourth byte (ascii '1'-'9'), indicates block size in units of 100k of
103451 uncompressed data. Allocate intermediate buffer for block. */
103452- bd->dbufSize = 100000*(i-BZh0);
103453+ i -= BZh0;
103454+ bd->dbufSize = 100000 * i;
103455
103456 bd->dbuf = large_malloc(bd->dbufSize * sizeof(int));
103457 if (!bd->dbuf)
103458diff --git a/lib/decompress_unlzma.c b/lib/decompress_unlzma.c
103459index 0be83af..4605e93 100644
103460--- a/lib/decompress_unlzma.c
103461+++ b/lib/decompress_unlzma.c
103462@@ -39,10 +39,10 @@
103463
103464 #define MIN(a, b) (((a) < (b)) ? (a) : (b))
103465
103466-static long long INIT read_int(unsigned char *ptr, int size)
103467+static unsigned long long INIT read_int(unsigned char *ptr, int size)
103468 {
103469 int i;
103470- long long ret = 0;
103471+ unsigned long long ret = 0;
103472
103473 for (i = 0; i < size; i++)
103474 ret = (ret << 8) | ptr[size-i-1];
103475diff --git a/lib/div64.c b/lib/div64.c
103476index 4382ad7..08aa558 100644
103477--- a/lib/div64.c
103478+++ b/lib/div64.c
103479@@ -59,7 +59,7 @@ uint32_t __attribute__((weak)) __div64_32(uint64_t *n, uint32_t base)
103480 EXPORT_SYMBOL(__div64_32);
103481
103482 #ifndef div_s64_rem
103483-s64 div_s64_rem(s64 dividend, s32 divisor, s32 *remainder)
103484+s64 __intentional_overflow(-1) div_s64_rem(s64 dividend, s32 divisor, s32 *remainder)
103485 {
103486 u64 quotient;
103487
103488@@ -130,7 +130,7 @@ EXPORT_SYMBOL(div64_u64_rem);
103489 * 'http://www.hackersdelight.org/HDcode/newCode/divDouble.c.txt'
103490 */
103491 #ifndef div64_u64
103492-u64 div64_u64(u64 dividend, u64 divisor)
103493+u64 __intentional_overflow(-1) div64_u64(u64 dividend, u64 divisor)
103494 {
103495 u32 high = divisor >> 32;
103496 u64 quot;
103497diff --git a/lib/dma-debug.c b/lib/dma-debug.c
103498index 9722bd2..0d826f4 100644
103499--- a/lib/dma-debug.c
103500+++ b/lib/dma-debug.c
103501@@ -979,7 +979,7 @@ static int dma_debug_device_change(struct notifier_block *nb, unsigned long acti
103502
103503 void dma_debug_add_bus(struct bus_type *bus)
103504 {
103505- struct notifier_block *nb;
103506+ notifier_block_no_const *nb;
103507
103508 if (dma_debug_disabled())
103509 return;
103510@@ -1161,7 +1161,7 @@ static void check_unmap(struct dma_debug_entry *ref)
103511
103512 static void check_for_stack(struct device *dev, void *addr)
103513 {
103514- if (object_is_on_stack(addr))
103515+ if (object_starts_on_stack(addr))
103516 err_printk(dev, NULL, "DMA-API: device driver maps memory from "
103517 "stack [addr=%p]\n", addr);
103518 }
103519diff --git a/lib/inflate.c b/lib/inflate.c
103520index 013a761..c28f3fc 100644
103521--- a/lib/inflate.c
103522+++ b/lib/inflate.c
103523@@ -269,7 +269,7 @@ static void free(void *where)
103524 malloc_ptr = free_mem_ptr;
103525 }
103526 #else
103527-#define malloc(a) kmalloc(a, GFP_KERNEL)
103528+#define malloc(a) kmalloc((a), GFP_KERNEL)
103529 #define free(a) kfree(a)
103530 #endif
103531
103532diff --git a/lib/ioremap.c b/lib/ioremap.c
103533index 0c9216c..863bd89 100644
103534--- a/lib/ioremap.c
103535+++ b/lib/ioremap.c
103536@@ -38,7 +38,7 @@ static inline int ioremap_pmd_range(pud_t *pud, unsigned long addr,
103537 unsigned long next;
103538
103539 phys_addr -= addr;
103540- pmd = pmd_alloc(&init_mm, pud, addr);
103541+ pmd = pmd_alloc_kernel(&init_mm, pud, addr);
103542 if (!pmd)
103543 return -ENOMEM;
103544 do {
103545@@ -56,7 +56,7 @@ static inline int ioremap_pud_range(pgd_t *pgd, unsigned long addr,
103546 unsigned long next;
103547
103548 phys_addr -= addr;
103549- pud = pud_alloc(&init_mm, pgd, addr);
103550+ pud = pud_alloc_kernel(&init_mm, pgd, addr);
103551 if (!pud)
103552 return -ENOMEM;
103553 do {
103554diff --git a/lib/is_single_threaded.c b/lib/is_single_threaded.c
103555index bd2bea9..6b3c95e 100644
103556--- a/lib/is_single_threaded.c
103557+++ b/lib/is_single_threaded.c
103558@@ -22,6 +22,9 @@ bool current_is_single_threaded(void)
103559 struct task_struct *p, *t;
103560 bool ret;
103561
103562+ if (!mm)
103563+ return true;
103564+
103565 if (atomic_read(&task->signal->live) != 1)
103566 return false;
103567
103568diff --git a/lib/kobject.c b/lib/kobject.c
103569index 03d4ab3..46f6374 100644
103570--- a/lib/kobject.c
103571+++ b/lib/kobject.c
103572@@ -931,9 +931,9 @@ EXPORT_SYMBOL_GPL(kset_create_and_add);
103573
103574
103575 static DEFINE_SPINLOCK(kobj_ns_type_lock);
103576-static const struct kobj_ns_type_operations *kobj_ns_ops_tbl[KOBJ_NS_TYPES];
103577+static const struct kobj_ns_type_operations *kobj_ns_ops_tbl[KOBJ_NS_TYPES] __read_only;
103578
103579-int kobj_ns_type_register(const struct kobj_ns_type_operations *ops)
103580+int __init kobj_ns_type_register(const struct kobj_ns_type_operations *ops)
103581 {
103582 enum kobj_ns_type type = ops->type;
103583 int error;
103584diff --git a/lib/list_debug.c b/lib/list_debug.c
103585index c24c2f7..f0296f4 100644
103586--- a/lib/list_debug.c
103587+++ b/lib/list_debug.c
103588@@ -11,7 +11,9 @@
103589 #include <linux/bug.h>
103590 #include <linux/kernel.h>
103591 #include <linux/rculist.h>
103592+#include <linux/mm.h>
103593
103594+#ifdef CONFIG_DEBUG_LIST
103595 /*
103596 * Insert a new entry between two known consecutive entries.
103597 *
103598@@ -19,21 +21,40 @@
103599 * the prev/next entries already!
103600 */
103601
103602+static bool __list_add_debug(struct list_head *new,
103603+ struct list_head *prev,
103604+ struct list_head *next)
103605+{
103606+ if (unlikely(next->prev != prev)) {
103607+ printk(KERN_ERR "list_add corruption. next->prev should be "
103608+ "prev (%p), but was %p. (next=%p).\n",
103609+ prev, next->prev, next);
103610+ BUG();
103611+ return false;
103612+ }
103613+ if (unlikely(prev->next != next)) {
103614+ printk(KERN_ERR "list_add corruption. prev->next should be "
103615+ "next (%p), but was %p. (prev=%p).\n",
103616+ next, prev->next, prev);
103617+ BUG();
103618+ return false;
103619+ }
103620+ if (unlikely(new == prev || new == next)) {
103621+ printk(KERN_ERR "list_add double add: new=%p, prev=%p, next=%p.\n",
103622+ new, prev, next);
103623+ BUG();
103624+ return false;
103625+ }
103626+ return true;
103627+}
103628+
103629 void __list_add(struct list_head *new,
103630- struct list_head *prev,
103631- struct list_head *next)
103632+ struct list_head *prev,
103633+ struct list_head *next)
103634 {
103635- WARN(next->prev != prev,
103636- "list_add corruption. next->prev should be "
103637- "prev (%p), but was %p. (next=%p).\n",
103638- prev, next->prev, next);
103639- WARN(prev->next != next,
103640- "list_add corruption. prev->next should be "
103641- "next (%p), but was %p. (prev=%p).\n",
103642- next, prev->next, prev);
103643- WARN(new == prev || new == next,
103644- "list_add double add: new=%p, prev=%p, next=%p.\n",
103645- new, prev, next);
103646+ if (!__list_add_debug(new, prev, next))
103647+ return;
103648+
103649 next->prev = new;
103650 new->next = next;
103651 new->prev = prev;
103652@@ -41,28 +62,46 @@ void __list_add(struct list_head *new,
103653 }
103654 EXPORT_SYMBOL(__list_add);
103655
103656-void __list_del_entry(struct list_head *entry)
103657+static bool __list_del_entry_debug(struct list_head *entry)
103658 {
103659 struct list_head *prev, *next;
103660
103661 prev = entry->prev;
103662 next = entry->next;
103663
103664- if (WARN(next == LIST_POISON1,
103665- "list_del corruption, %p->next is LIST_POISON1 (%p)\n",
103666- entry, LIST_POISON1) ||
103667- WARN(prev == LIST_POISON2,
103668- "list_del corruption, %p->prev is LIST_POISON2 (%p)\n",
103669- entry, LIST_POISON2) ||
103670- WARN(prev->next != entry,
103671- "list_del corruption. prev->next should be %p, "
103672- "but was %p\n", entry, prev->next) ||
103673- WARN(next->prev != entry,
103674- "list_del corruption. next->prev should be %p, "
103675- "but was %p\n", entry, next->prev))
103676+ if (unlikely(next == LIST_POISON1)) {
103677+ printk(KERN_ERR "list_del corruption, %p->next is LIST_POISON1 (%p)\n",
103678+ entry, LIST_POISON1);
103679+ BUG();
103680+ return false;
103681+ }
103682+ if (unlikely(prev == LIST_POISON2)) {
103683+ printk(KERN_ERR "list_del corruption, %p->prev is LIST_POISON2 (%p)\n",
103684+ entry, LIST_POISON2);
103685+ BUG();
103686+ return false;
103687+ }
103688+ if (unlikely(entry->prev->next != entry)) {
103689+ printk(KERN_ERR "list_del corruption. prev->next should be %p, "
103690+ "but was %p\n", entry, prev->next);
103691+ BUG();
103692+ return false;
103693+ }
103694+ if (unlikely(entry->next->prev != entry)) {
103695+ printk(KERN_ERR "list_del corruption. next->prev should be %p, "
103696+ "but was %p\n", entry, next->prev);
103697+ BUG();
103698+ return false;
103699+ }
103700+ return true;
103701+}
103702+
103703+void __list_del_entry(struct list_head *entry)
103704+{
103705+ if (!__list_del_entry_debug(entry))
103706 return;
103707
103708- __list_del(prev, next);
103709+ __list_del(entry->prev, entry->next);
103710 }
103711 EXPORT_SYMBOL(__list_del_entry);
103712
103713@@ -86,15 +125,85 @@ EXPORT_SYMBOL(list_del);
103714 void __list_add_rcu(struct list_head *new,
103715 struct list_head *prev, struct list_head *next)
103716 {
103717- WARN(next->prev != prev,
103718- "list_add_rcu corruption. next->prev should be prev (%p), but was %p. (next=%p).\n",
103719- prev, next->prev, next);
103720- WARN(prev->next != next,
103721- "list_add_rcu corruption. prev->next should be next (%p), but was %p. (prev=%p).\n",
103722- next, prev->next, prev);
103723+ if (!__list_add_debug(new, prev, next))
103724+ return;
103725+
103726 new->next = next;
103727 new->prev = prev;
103728 rcu_assign_pointer(list_next_rcu(prev), new);
103729 next->prev = new;
103730 }
103731 EXPORT_SYMBOL(__list_add_rcu);
103732+#endif
103733+
103734+void __pax_list_add(struct list_head *new, struct list_head *prev, struct list_head *next)
103735+{
103736+#ifdef CONFIG_DEBUG_LIST
103737+ if (!__list_add_debug(new, prev, next))
103738+ return;
103739+#endif
103740+
103741+ pax_open_kernel();
103742+ next->prev = new;
103743+ new->next = next;
103744+ new->prev = prev;
103745+ prev->next = new;
103746+ pax_close_kernel();
103747+}
103748+EXPORT_SYMBOL(__pax_list_add);
103749+
103750+void pax_list_del(struct list_head *entry)
103751+{
103752+#ifdef CONFIG_DEBUG_LIST
103753+ if (!__list_del_entry_debug(entry))
103754+ return;
103755+#endif
103756+
103757+ pax_open_kernel();
103758+ __list_del(entry->prev, entry->next);
103759+ entry->next = LIST_POISON1;
103760+ entry->prev = LIST_POISON2;
103761+ pax_close_kernel();
103762+}
103763+EXPORT_SYMBOL(pax_list_del);
103764+
103765+void pax_list_del_init(struct list_head *entry)
103766+{
103767+ pax_open_kernel();
103768+ __list_del(entry->prev, entry->next);
103769+ INIT_LIST_HEAD(entry);
103770+ pax_close_kernel();
103771+}
103772+EXPORT_SYMBOL(pax_list_del_init);
103773+
103774+void __pax_list_add_rcu(struct list_head *new,
103775+ struct list_head *prev, struct list_head *next)
103776+{
103777+#ifdef CONFIG_DEBUG_LIST
103778+ if (!__list_add_debug(new, prev, next))
103779+ return;
103780+#endif
103781+
103782+ pax_open_kernel();
103783+ new->next = next;
103784+ new->prev = prev;
103785+ rcu_assign_pointer(list_next_rcu(prev), new);
103786+ next->prev = new;
103787+ pax_close_kernel();
103788+}
103789+EXPORT_SYMBOL(__pax_list_add_rcu);
103790+
103791+void pax_list_del_rcu(struct list_head *entry)
103792+{
103793+#ifdef CONFIG_DEBUG_LIST
103794+ if (!__list_del_entry_debug(entry))
103795+ return;
103796+#endif
103797+
103798+ pax_open_kernel();
103799+ __list_del(entry->prev, entry->next);
103800+ entry->next = LIST_POISON1;
103801+ entry->prev = LIST_POISON2;
103802+ pax_close_kernel();
103803+}
103804+EXPORT_SYMBOL(pax_list_del_rcu);
103805diff --git a/lib/lockref.c b/lib/lockref.c
103806index ecb9a66..a044fc5 100644
103807--- a/lib/lockref.c
103808+++ b/lib/lockref.c
103809@@ -48,13 +48,13 @@
103810 void lockref_get(struct lockref *lockref)
103811 {
103812 CMPXCHG_LOOP(
103813- new.count++;
103814+ __lockref_inc(&new);
103815 ,
103816 return;
103817 );
103818
103819 spin_lock(&lockref->lock);
103820- lockref->count++;
103821+ __lockref_inc(lockref);
103822 spin_unlock(&lockref->lock);
103823 }
103824 EXPORT_SYMBOL(lockref_get);
103825@@ -69,8 +69,8 @@ int lockref_get_not_zero(struct lockref *lockref)
103826 int retval;
103827
103828 CMPXCHG_LOOP(
103829- new.count++;
103830- if (old.count <= 0)
103831+ __lockref_inc(&new);
103832+ if (__lockref_read(&old) <= 0)
103833 return 0;
103834 ,
103835 return 1;
103836@@ -78,8 +78,8 @@ int lockref_get_not_zero(struct lockref *lockref)
103837
103838 spin_lock(&lockref->lock);
103839 retval = 0;
103840- if (lockref->count > 0) {
103841- lockref->count++;
103842+ if (__lockref_read(lockref) > 0) {
103843+ __lockref_inc(lockref);
103844 retval = 1;
103845 }
103846 spin_unlock(&lockref->lock);
103847@@ -96,17 +96,17 @@ EXPORT_SYMBOL(lockref_get_not_zero);
103848 int lockref_get_or_lock(struct lockref *lockref)
103849 {
103850 CMPXCHG_LOOP(
103851- new.count++;
103852- if (old.count <= 0)
103853+ __lockref_inc(&new);
103854+ if (__lockref_read(&old) <= 0)
103855 break;
103856 ,
103857 return 1;
103858 );
103859
103860 spin_lock(&lockref->lock);
103861- if (lockref->count <= 0)
103862+ if (__lockref_read(lockref) <= 0)
103863 return 0;
103864- lockref->count++;
103865+ __lockref_inc(lockref);
103866 spin_unlock(&lockref->lock);
103867 return 1;
103868 }
103869@@ -122,11 +122,11 @@ EXPORT_SYMBOL(lockref_get_or_lock);
103870 int lockref_put_return(struct lockref *lockref)
103871 {
103872 CMPXCHG_LOOP(
103873- new.count--;
103874- if (old.count <= 0)
103875+ __lockref_dec(&new);
103876+ if (__lockref_read(&old) <= 0)
103877 return -1;
103878 ,
103879- return new.count;
103880+ return __lockref_read(&new);
103881 );
103882 return -1;
103883 }
103884@@ -140,17 +140,17 @@ EXPORT_SYMBOL(lockref_put_return);
103885 int lockref_put_or_lock(struct lockref *lockref)
103886 {
103887 CMPXCHG_LOOP(
103888- new.count--;
103889- if (old.count <= 1)
103890+ __lockref_dec(&new);
103891+ if (__lockref_read(&old) <= 1)
103892 break;
103893 ,
103894 return 1;
103895 );
103896
103897 spin_lock(&lockref->lock);
103898- if (lockref->count <= 1)
103899+ if (__lockref_read(lockref) <= 1)
103900 return 0;
103901- lockref->count--;
103902+ __lockref_dec(lockref);
103903 spin_unlock(&lockref->lock);
103904 return 1;
103905 }
103906@@ -163,7 +163,7 @@ EXPORT_SYMBOL(lockref_put_or_lock);
103907 void lockref_mark_dead(struct lockref *lockref)
103908 {
103909 assert_spin_locked(&lockref->lock);
103910- lockref->count = -128;
103911+ __lockref_set(lockref, -128);
103912 }
103913 EXPORT_SYMBOL(lockref_mark_dead);
103914
103915@@ -177,8 +177,8 @@ int lockref_get_not_dead(struct lockref *lockref)
103916 int retval;
103917
103918 CMPXCHG_LOOP(
103919- new.count++;
103920- if (old.count < 0)
103921+ __lockref_inc(&new);
103922+ if (__lockref_read(&old) < 0)
103923 return 0;
103924 ,
103925 return 1;
103926@@ -186,8 +186,8 @@ int lockref_get_not_dead(struct lockref *lockref)
103927
103928 spin_lock(&lockref->lock);
103929 retval = 0;
103930- if (lockref->count >= 0) {
103931- lockref->count++;
103932+ if (__lockref_read(lockref) >= 0) {
103933+ __lockref_inc(lockref);
103934 retval = 1;
103935 }
103936 spin_unlock(&lockref->lock);
103937diff --git a/lib/mpi/longlong.h b/lib/mpi/longlong.h
103938index aac5114..a89d041 100644
103939--- a/lib/mpi/longlong.h
103940+++ b/lib/mpi/longlong.h
103941@@ -639,7 +639,7 @@ do { \
103942 ************** MIPS *****************
103943 ***************************************/
103944 #if defined(__mips__) && W_TYPE_SIZE == 32
103945-#if __GNUC__ >= 4 && __GNUC_MINOR__ >= 4
103946+#if (__GNUC__ >= 5) || (__GNUC__ >= 4 && __GNUC_MINOR__ >= 4)
103947 #define umul_ppmm(w1, w0, u, v) \
103948 do { \
103949 UDItype __ll = (UDItype)(u) * (v); \
103950@@ -671,7 +671,7 @@ do { \
103951 ************** MIPS/64 **************
103952 ***************************************/
103953 #if (defined(__mips) && __mips >= 3) && W_TYPE_SIZE == 64
103954-#if __GNUC__ >= 4 && __GNUC_MINOR__ >= 4
103955+#if (__GNUC__ >= 5) || (__GNUC__ >= 4 && __GNUC_MINOR__ >= 4)
103956 #define umul_ppmm(w1, w0, u, v) \
103957 do { \
103958 typedef unsigned int __ll_UTItype __attribute__((mode(TI))); \
103959diff --git a/lib/nlattr.c b/lib/nlattr.c
103960index f5907d2..36072be 100644
103961--- a/lib/nlattr.c
103962+++ b/lib/nlattr.c
103963@@ -278,6 +278,8 @@ int nla_memcpy(void *dest, const struct nlattr *src, int count)
103964 {
103965 int minlen = min_t(int, count, nla_len(src));
103966
103967+ BUG_ON(minlen < 0);
103968+
103969 memcpy(dest, nla_data(src), minlen);
103970 if (count > minlen)
103971 memset(dest + minlen, 0, count - minlen);
103972diff --git a/lib/percpu-refcount.c b/lib/percpu-refcount.c
103973index 6111bcb..02e816b 100644
103974--- a/lib/percpu-refcount.c
103975+++ b/lib/percpu-refcount.c
103976@@ -31,7 +31,7 @@
103977 * atomic_long_t can't hit 0 before we've added up all the percpu refs.
103978 */
103979
103980-#define PERCPU_COUNT_BIAS (1LU << (BITS_PER_LONG - 1))
103981+#define PERCPU_COUNT_BIAS (1LU << (BITS_PER_LONG - 2))
103982
103983 static DECLARE_WAIT_QUEUE_HEAD(percpu_ref_switch_waitq);
103984
103985diff --git a/lib/radix-tree.c b/lib/radix-tree.c
103986index 3d2aa27..a472f20 100644
103987--- a/lib/radix-tree.c
103988+++ b/lib/radix-tree.c
103989@@ -67,7 +67,7 @@ struct radix_tree_preload {
103990 int nr;
103991 struct radix_tree_node *nodes[RADIX_TREE_PRELOAD_SIZE];
103992 };
103993-static DEFINE_PER_CPU(struct radix_tree_preload, radix_tree_preloads) = { 0, };
103994+static DEFINE_PER_CPU(struct radix_tree_preload, radix_tree_preloads);
103995
103996 static inline void *ptr_to_indirect(void *ptr)
103997 {
103998diff --git a/lib/random32.c b/lib/random32.c
103999index 0bee183..526f12f 100644
104000--- a/lib/random32.c
104001+++ b/lib/random32.c
104002@@ -47,7 +47,7 @@ static inline void prandom_state_selftest(void)
104003 }
104004 #endif
104005
104006-static DEFINE_PER_CPU(struct rnd_state, net_rand_state);
104007+static DEFINE_PER_CPU(struct rnd_state, net_rand_state) __latent_entropy;
104008
104009 /**
104010 * prandom_u32_state - seeded pseudo-random number generator.
104011diff --git a/lib/rbtree.c b/lib/rbtree.c
104012index c16c81a..4dcbda1 100644
104013--- a/lib/rbtree.c
104014+++ b/lib/rbtree.c
104015@@ -380,7 +380,9 @@ static inline void dummy_copy(struct rb_node *old, struct rb_node *new) {}
104016 static inline void dummy_rotate(struct rb_node *old, struct rb_node *new) {}
104017
104018 static const struct rb_augment_callbacks dummy_callbacks = {
104019- dummy_propagate, dummy_copy, dummy_rotate
104020+ .propagate = dummy_propagate,
104021+ .copy = dummy_copy,
104022+ .rotate = dummy_rotate
104023 };
104024
104025 void rb_insert_color(struct rb_node *node, struct rb_root *root)
104026diff --git a/lib/show_mem.c b/lib/show_mem.c
104027index adc98e18..0ce83c2 100644
104028--- a/lib/show_mem.c
104029+++ b/lib/show_mem.c
104030@@ -49,6 +49,6 @@ void show_mem(unsigned int filter)
104031 quicklist_total_size());
104032 #endif
104033 #ifdef CONFIG_MEMORY_FAILURE
104034- printk("%lu pages hwpoisoned\n", atomic_long_read(&num_poisoned_pages));
104035+ printk("%lu pages hwpoisoned\n", atomic_long_read_unchecked(&num_poisoned_pages));
104036 #endif
104037 }
104038diff --git a/lib/strncpy_from_user.c b/lib/strncpy_from_user.c
104039index e0af6ff..fcc9f15 100644
104040--- a/lib/strncpy_from_user.c
104041+++ b/lib/strncpy_from_user.c
104042@@ -22,7 +22,7 @@
104043 */
104044 static inline long do_strncpy_from_user(char *dst, const char __user *src, long count, unsigned long max)
104045 {
104046- const struct word_at_a_time constants = WORD_AT_A_TIME_CONSTANTS;
104047+ static const struct word_at_a_time constants = WORD_AT_A_TIME_CONSTANTS;
104048 long res = 0;
104049
104050 /*
104051diff --git a/lib/strnlen_user.c b/lib/strnlen_user.c
104052index 1164961..02dccaa 100644
104053--- a/lib/strnlen_user.c
104054+++ b/lib/strnlen_user.c
104055@@ -26,7 +26,7 @@
104056 */
104057 static inline long do_strnlen_user(const char __user *src, unsigned long count, unsigned long max)
104058 {
104059- const struct word_at_a_time constants = WORD_AT_A_TIME_CONSTANTS;
104060+ static const struct word_at_a_time constants = WORD_AT_A_TIME_CONSTANTS;
104061 long align, res = 0;
104062 unsigned long c;
104063
104064diff --git a/lib/swiotlb.c b/lib/swiotlb.c
104065index 4abda07..b9d3765 100644
104066--- a/lib/swiotlb.c
104067+++ b/lib/swiotlb.c
104068@@ -682,7 +682,7 @@ EXPORT_SYMBOL(swiotlb_alloc_coherent);
104069
104070 void
104071 swiotlb_free_coherent(struct device *hwdev, size_t size, void *vaddr,
104072- dma_addr_t dev_addr)
104073+ dma_addr_t dev_addr, struct dma_attrs *attrs)
104074 {
104075 phys_addr_t paddr = dma_to_phys(hwdev, dev_addr);
104076
104077diff --git a/lib/test-hexdump.c b/lib/test-hexdump.c
104078index daf29a39..56f44ac 100644
104079--- a/lib/test-hexdump.c
104080+++ b/lib/test-hexdump.c
104081@@ -18,26 +18,26 @@ static const unsigned char data_b[] = {
104082
104083 static const unsigned char data_a[] = ".2.{....p..$}.4...1.....L...C...";
104084
104085-static const char *test_data_1_le[] __initconst = {
104086+static const char * const test_data_1_le[] __initconst = {
104087 "be", "32", "db", "7b", "0a", "18", "93", "b2",
104088 "70", "ba", "c4", "24", "7d", "83", "34", "9b",
104089 "a6", "9c", "31", "ad", "9c", "0f", "ac", "e9",
104090 "4c", "d1", "19", "99", "43", "b1", "af", "0c",
104091 };
104092
104093-static const char *test_data_2_le[] __initconst = {
104094+static const char * const test_data_2_le[] __initconst = {
104095 "32be", "7bdb", "180a", "b293",
104096 "ba70", "24c4", "837d", "9b34",
104097 "9ca6", "ad31", "0f9c", "e9ac",
104098 "d14c", "9919", "b143", "0caf",
104099 };
104100
104101-static const char *test_data_4_le[] __initconst = {
104102+static const char * const test_data_4_le[] __initconst = {
104103 "7bdb32be", "b293180a", "24c4ba70", "9b34837d",
104104 "ad319ca6", "e9ac0f9c", "9919d14c", "0cafb143",
104105 };
104106
104107-static const char *test_data_8_le[] __initconst = {
104108+static const char * const test_data_8_le[] __initconst = {
104109 "b293180a7bdb32be", "9b34837d24c4ba70",
104110 "e9ac0f9cad319ca6", "0cafb1439919d14c",
104111 };
104112diff --git a/lib/usercopy.c b/lib/usercopy.c
104113index 4f5b1dd..7cab418 100644
104114--- a/lib/usercopy.c
104115+++ b/lib/usercopy.c
104116@@ -7,3 +7,9 @@ void copy_from_user_overflow(void)
104117 WARN(1, "Buffer overflow detected!\n");
104118 }
104119 EXPORT_SYMBOL(copy_from_user_overflow);
104120+
104121+void copy_to_user_overflow(void)
104122+{
104123+ WARN(1, "Buffer overflow detected!\n");
104124+}
104125+EXPORT_SYMBOL(copy_to_user_overflow);
104126diff --git a/lib/vsprintf.c b/lib/vsprintf.c
104127index b235c96..343ffc1 100644
104128--- a/lib/vsprintf.c
104129+++ b/lib/vsprintf.c
104130@@ -16,6 +16,9 @@
104131 * - scnprintf and vscnprintf
104132 */
104133
104134+#ifdef CONFIG_GRKERNSEC_HIDESYM
104135+#define __INCLUDED_BY_HIDESYM 1
104136+#endif
104137 #include <stdarg.h>
104138 #include <linux/module.h> /* for KSYM_SYMBOL_LEN */
104139 #include <linux/types.h>
104140@@ -626,7 +629,7 @@ char *symbol_string(char *buf, char *end, void *ptr,
104141 #ifdef CONFIG_KALLSYMS
104142 if (*fmt == 'B')
104143 sprint_backtrace(sym, value);
104144- else if (*fmt != 'f' && *fmt != 's')
104145+ else if (*fmt != 'f' && *fmt != 's' && *fmt != 'X')
104146 sprint_symbol(sym, value);
104147 else
104148 sprint_symbol_no_offset(sym, value);
104149@@ -1322,7 +1325,11 @@ char *address_val(char *buf, char *end, const void *addr,
104150 return number(buf, end, num, spec);
104151 }
104152
104153+#ifdef CONFIG_GRKERNSEC_HIDESYM
104154+int kptr_restrict __read_mostly = 2;
104155+#else
104156 int kptr_restrict __read_mostly;
104157+#endif
104158
104159 /*
104160 * Show a '%p' thing. A kernel extension is that the '%p' is followed
104161@@ -1333,8 +1340,10 @@ int kptr_restrict __read_mostly;
104162 *
104163 * - 'F' For symbolic function descriptor pointers with offset
104164 * - 'f' For simple symbolic function names without offset
104165+ * - 'X' For simple symbolic function names without offset approved for use with GRKERNSEC_HIDESYM
104166 * - 'S' For symbolic direct pointers with offset
104167 * - 's' For symbolic direct pointers without offset
104168+ * - 'A' For symbolic direct pointers with offset approved for use with GRKERNSEC_HIDESYM
104169 * - '[FfSs]R' as above with __builtin_extract_return_addr() translation
104170 * - 'B' For backtraced symbolic direct pointers with offset
104171 * - 'R' For decoded struct resource, e.g., [mem 0x0-0x1f 64bit pref]
104172@@ -1417,12 +1426,12 @@ char *pointer(const char *fmt, char *buf, char *end, void *ptr,
104173
104174 if (!ptr && *fmt != 'K') {
104175 /*
104176- * Print (null) with the same width as a pointer so it makes
104177+ * Print (nil) with the same width as a pointer so it makes
104178 * tabular output look nice.
104179 */
104180 if (spec.field_width == -1)
104181 spec.field_width = default_width;
104182- return string(buf, end, "(null)", spec);
104183+ return string(buf, end, "(nil)", spec);
104184 }
104185
104186 switch (*fmt) {
104187@@ -1432,6 +1441,14 @@ char *pointer(const char *fmt, char *buf, char *end, void *ptr,
104188 /* Fallthrough */
104189 case 'S':
104190 case 's':
104191+#ifdef CONFIG_GRKERNSEC_HIDESYM
104192+ break;
104193+#else
104194+ return symbol_string(buf, end, ptr, spec, fmt);
104195+#endif
104196+ case 'X':
104197+ ptr = dereference_function_descriptor(ptr);
104198+ case 'A':
104199 case 'B':
104200 return symbol_string(buf, end, ptr, spec, fmt);
104201 case 'R':
104202@@ -1496,6 +1513,8 @@ char *pointer(const char *fmt, char *buf, char *end, void *ptr,
104203 va_end(va);
104204 return buf;
104205 }
104206+ case 'P':
104207+ break;
104208 case 'K':
104209 /*
104210 * %pK cannot be used in IRQ context because its test
104211@@ -1553,6 +1572,22 @@ char *pointer(const char *fmt, char *buf, char *end, void *ptr,
104212 ((const struct file *)ptr)->f_path.dentry,
104213 spec, fmt);
104214 }
104215+
104216+#ifdef CONFIG_GRKERNSEC_HIDESYM
104217+ /* 'P' = approved pointers to copy to userland,
104218+ as in the /proc/kallsyms case, as we make it display nothing
104219+ for non-root users, and the real contents for root users
104220+ 'X' = approved simple symbols
104221+ Also ignore 'K' pointers, since we force their NULLing for non-root users
104222+ above
104223+ */
104224+ if ((unsigned long)ptr > TASK_SIZE && *fmt != 'P' && *fmt != 'X' && *fmt != 'K' && is_usercopy_object(buf)) {
104225+ printk(KERN_ALERT "grsec: kernel infoleak detected! Please report this log to spender@grsecurity.net.\n");
104226+ dump_stack();
104227+ ptr = NULL;
104228+ }
104229+#endif
104230+
104231 spec.flags |= SMALL;
104232 if (spec.field_width == -1) {
104233 spec.field_width = default_width;
104234@@ -2254,11 +2289,11 @@ int bstr_printf(char *buf, size_t size, const char *fmt, const u32 *bin_buf)
104235 typeof(type) value; \
104236 if (sizeof(type) == 8) { \
104237 args = PTR_ALIGN(args, sizeof(u32)); \
104238- *(u32 *)&value = *(u32 *)args; \
104239- *((u32 *)&value + 1) = *(u32 *)(args + 4); \
104240+ *(u32 *)&value = *(const u32 *)args; \
104241+ *((u32 *)&value + 1) = *(const u32 *)(args + 4); \
104242 } else { \
104243 args = PTR_ALIGN(args, sizeof(type)); \
104244- value = *(typeof(type) *)args; \
104245+ value = *(const typeof(type) *)args; \
104246 } \
104247 args += sizeof(type); \
104248 value; \
104249@@ -2321,7 +2356,7 @@ int bstr_printf(char *buf, size_t size, const char *fmt, const u32 *bin_buf)
104250 case FORMAT_TYPE_STR: {
104251 const char *str_arg = args;
104252 args += strlen(str_arg) + 1;
104253- str = string(str, end, (char *)str_arg, spec);
104254+ str = string(str, end, str_arg, spec);
104255 break;
104256 }
104257
104258diff --git a/localversion-grsec b/localversion-grsec
104259new file mode 100644
104260index 0000000..7cd6065
104261--- /dev/null
104262+++ b/localversion-grsec
104263@@ -0,0 +1 @@
104264+-grsec
104265diff --git a/mm/Kconfig b/mm/Kconfig
104266index a03131b..1b1bafb 100644
104267--- a/mm/Kconfig
104268+++ b/mm/Kconfig
104269@@ -342,10 +342,11 @@ config KSM
104270 root has set /sys/kernel/mm/ksm/run to 1 (if CONFIG_SYSFS is set).
104271
104272 config DEFAULT_MMAP_MIN_ADDR
104273- int "Low address space to protect from user allocation"
104274+ int "Low address space to protect from user allocation"
104275 depends on MMU
104276- default 4096
104277- help
104278+ default 32768 if ALPHA || ARM || PARISC || SPARC32
104279+ default 65536
104280+ help
104281 This is the portion of low virtual memory which should be protected
104282 from userspace allocation. Keeping a user from writing to low pages
104283 can help reduce the impact of kernel NULL pointer bugs.
104284@@ -376,7 +377,7 @@ config MEMORY_FAILURE
104285
104286 config HWPOISON_INJECT
104287 tristate "HWPoison pages injector"
104288- depends on MEMORY_FAILURE && DEBUG_KERNEL && PROC_FS
104289+ depends on MEMORY_FAILURE && DEBUG_KERNEL && PROC_FS && !GRKERNSEC
104290 select PROC_PAGE_MONITOR
104291
104292 config NOMMU_INITIAL_TRIM_EXCESS
104293diff --git a/mm/Kconfig.debug b/mm/Kconfig.debug
104294index 957d3da..1d34e20 100644
104295--- a/mm/Kconfig.debug
104296+++ b/mm/Kconfig.debug
104297@@ -10,6 +10,7 @@ config PAGE_EXTENSION
104298 config DEBUG_PAGEALLOC
104299 bool "Debug page memory allocations"
104300 depends on DEBUG_KERNEL
104301+ depends on !PAX_MEMORY_SANITIZE
104302 depends on !HIBERNATION || ARCH_SUPPORTS_DEBUG_PAGEALLOC && !PPC && !SPARC
104303 depends on !KMEMCHECK
104304 select PAGE_EXTENSION
104305diff --git a/mm/backing-dev.c b/mm/backing-dev.c
104306index 000e7b3..aad2605 100644
104307--- a/mm/backing-dev.c
104308+++ b/mm/backing-dev.c
104309@@ -12,7 +12,7 @@
104310 #include <linux/device.h>
104311 #include <trace/events/writeback.h>
104312
104313-static atomic_long_t bdi_seq = ATOMIC_LONG_INIT(0);
104314+static atomic_long_unchecked_t bdi_seq = ATOMIC_LONG_INIT(0);
104315
104316 struct backing_dev_info noop_backing_dev_info = {
104317 .name = "noop",
104318@@ -458,7 +458,7 @@ int bdi_setup_and_register(struct backing_dev_info *bdi, char *name)
104319 return err;
104320
104321 err = bdi_register(bdi, NULL, "%.28s-%ld", name,
104322- atomic_long_inc_return(&bdi_seq));
104323+ atomic_long_inc_return_unchecked(&bdi_seq));
104324 if (err) {
104325 bdi_destroy(bdi);
104326 return err;
104327diff --git a/mm/filemap.c b/mm/filemap.c
104328index ad72420..0a20ef2 100644
104329--- a/mm/filemap.c
104330+++ b/mm/filemap.c
104331@@ -2097,7 +2097,7 @@ int generic_file_mmap(struct file * file, struct vm_area_struct * vma)
104332 struct address_space *mapping = file->f_mapping;
104333
104334 if (!mapping->a_ops->readpage)
104335- return -ENOEXEC;
104336+ return -ENODEV;
104337 file_accessed(file);
104338 vma->vm_ops = &generic_file_vm_ops;
104339 return 0;
104340@@ -2275,6 +2275,7 @@ inline int generic_write_checks(struct file *file, loff_t *pos, size_t *count, i
104341 *pos = i_size_read(inode);
104342
104343 if (limit != RLIM_INFINITY) {
104344+ gr_learn_resource(current, RLIMIT_FSIZE,*pos, 0);
104345 if (*pos >= limit) {
104346 send_sig(SIGXFSZ, current, 0);
104347 return -EFBIG;
104348diff --git a/mm/gup.c b/mm/gup.c
104349index a6e24e2..72dd2cf 100644
104350--- a/mm/gup.c
104351+++ b/mm/gup.c
104352@@ -265,11 +265,6 @@ static int faultin_page(struct task_struct *tsk, struct vm_area_struct *vma,
104353 unsigned int fault_flags = 0;
104354 int ret;
104355
104356- /* For mlock, just skip the stack guard page. */
104357- if ((*flags & FOLL_MLOCK) &&
104358- (stack_guard_page_start(vma, address) ||
104359- stack_guard_page_end(vma, address + PAGE_SIZE)))
104360- return -ENOENT;
104361 if (*flags & FOLL_WRITE)
104362 fault_flags |= FAULT_FLAG_WRITE;
104363 if (nonblocking)
104364@@ -435,14 +430,14 @@ long __get_user_pages(struct task_struct *tsk, struct mm_struct *mm,
104365 if (!(gup_flags & FOLL_FORCE))
104366 gup_flags |= FOLL_NUMA;
104367
104368- do {
104369+ while (nr_pages) {
104370 struct page *page;
104371 unsigned int foll_flags = gup_flags;
104372 unsigned int page_increm;
104373
104374 /* first iteration or cross vma bound */
104375 if (!vma || start >= vma->vm_end) {
104376- vma = find_extend_vma(mm, start);
104377+ vma = find_vma(mm, start);
104378 if (!vma && in_gate_area(mm, start)) {
104379 int ret;
104380 ret = get_gate_page(mm, start & PAGE_MASK,
104381@@ -454,7 +449,7 @@ long __get_user_pages(struct task_struct *tsk, struct mm_struct *mm,
104382 goto next_page;
104383 }
104384
104385- if (!vma || check_vma_flags(vma, gup_flags))
104386+ if (!vma || start < vma->vm_start || check_vma_flags(vma, gup_flags))
104387 return i ? : -EFAULT;
104388 if (is_vm_hugetlb_page(vma)) {
104389 i = follow_hugetlb_page(mm, vma, pages, vmas,
104390@@ -509,7 +504,7 @@ next_page:
104391 i += page_increm;
104392 start += page_increm * PAGE_SIZE;
104393 nr_pages -= page_increm;
104394- } while (nr_pages);
104395+ }
104396 return i;
104397 }
104398 EXPORT_SYMBOL(__get_user_pages);
104399diff --git a/mm/highmem.c b/mm/highmem.c
104400index 123bcd3..0de52ba 100644
104401--- a/mm/highmem.c
104402+++ b/mm/highmem.c
104403@@ -195,8 +195,9 @@ static void flush_all_zero_pkmaps(void)
104404 * So no dangers, even with speculative execution.
104405 */
104406 page = pte_page(pkmap_page_table[i]);
104407+ pax_open_kernel();
104408 pte_clear(&init_mm, PKMAP_ADDR(i), &pkmap_page_table[i]);
104409-
104410+ pax_close_kernel();
104411 set_page_address(page, NULL);
104412 need_flush = 1;
104413 }
104414@@ -259,9 +260,11 @@ start:
104415 }
104416 }
104417 vaddr = PKMAP_ADDR(last_pkmap_nr);
104418+
104419+ pax_open_kernel();
104420 set_pte_at(&init_mm, vaddr,
104421 &(pkmap_page_table[last_pkmap_nr]), mk_pte(page, kmap_prot));
104422-
104423+ pax_close_kernel();
104424 pkmap_count[last_pkmap_nr] = 1;
104425 set_page_address(page, (void *)vaddr);
104426
104427diff --git a/mm/hugetlb.c b/mm/hugetlb.c
104428index caad3c5..4f68807 100644
104429--- a/mm/hugetlb.c
104430+++ b/mm/hugetlb.c
104431@@ -2260,6 +2260,7 @@ static int hugetlb_sysctl_handler_common(bool obey_mempolicy,
104432 struct ctl_table *table, int write,
104433 void __user *buffer, size_t *length, loff_t *ppos)
104434 {
104435+ ctl_table_no_const t;
104436 struct hstate *h = &default_hstate;
104437 unsigned long tmp = h->max_huge_pages;
104438 int ret;
104439@@ -2267,9 +2268,10 @@ static int hugetlb_sysctl_handler_common(bool obey_mempolicy,
104440 if (!hugepages_supported())
104441 return -ENOTSUPP;
104442
104443- table->data = &tmp;
104444- table->maxlen = sizeof(unsigned long);
104445- ret = proc_doulongvec_minmax(table, write, buffer, length, ppos);
104446+ t = *table;
104447+ t.data = &tmp;
104448+ t.maxlen = sizeof(unsigned long);
104449+ ret = proc_doulongvec_minmax(&t, write, buffer, length, ppos);
104450 if (ret)
104451 goto out;
104452
104453@@ -2304,6 +2306,7 @@ int hugetlb_overcommit_handler(struct ctl_table *table, int write,
104454 struct hstate *h = &default_hstate;
104455 unsigned long tmp;
104456 int ret;
104457+ ctl_table_no_const hugetlb_table;
104458
104459 if (!hugepages_supported())
104460 return -ENOTSUPP;
104461@@ -2313,9 +2316,10 @@ int hugetlb_overcommit_handler(struct ctl_table *table, int write,
104462 if (write && hstate_is_gigantic(h))
104463 return -EINVAL;
104464
104465- table->data = &tmp;
104466- table->maxlen = sizeof(unsigned long);
104467- ret = proc_doulongvec_minmax(table, write, buffer, length, ppos);
104468+ hugetlb_table = *table;
104469+ hugetlb_table.data = &tmp;
104470+ hugetlb_table.maxlen = sizeof(unsigned long);
104471+ ret = proc_doulongvec_minmax(&hugetlb_table, write, buffer, length, ppos);
104472 if (ret)
104473 goto out;
104474
104475@@ -2800,6 +2804,27 @@ static void unmap_ref_private(struct mm_struct *mm, struct vm_area_struct *vma,
104476 i_mmap_unlock_write(mapping);
104477 }
104478
104479+#ifdef CONFIG_PAX_SEGMEXEC
104480+static void pax_mirror_huge_pte(struct vm_area_struct *vma, unsigned long address, struct page *page_m)
104481+{
104482+ struct mm_struct *mm = vma->vm_mm;
104483+ struct vm_area_struct *vma_m;
104484+ unsigned long address_m;
104485+ pte_t *ptep_m;
104486+
104487+ vma_m = pax_find_mirror_vma(vma);
104488+ if (!vma_m)
104489+ return;
104490+
104491+ BUG_ON(address >= SEGMEXEC_TASK_SIZE);
104492+ address_m = address + SEGMEXEC_TASK_SIZE;
104493+ ptep_m = huge_pte_offset(mm, address_m & HPAGE_MASK);
104494+ get_page(page_m);
104495+ hugepage_add_anon_rmap(page_m, vma_m, address_m);
104496+ set_huge_pte_at(mm, address_m, ptep_m, make_huge_pte(vma_m, page_m, 0));
104497+}
104498+#endif
104499+
104500 /*
104501 * Hugetlb_cow() should be called with page lock of the original hugepage held.
104502 * Called with hugetlb_instantiation_mutex held and pte_page locked so we
104503@@ -2912,6 +2937,11 @@ retry_avoidcopy:
104504 make_huge_pte(vma, new_page, 1));
104505 page_remove_rmap(old_page);
104506 hugepage_add_new_anon_rmap(new_page, vma, address);
104507+
104508+#ifdef CONFIG_PAX_SEGMEXEC
104509+ pax_mirror_huge_pte(vma, address, new_page);
104510+#endif
104511+
104512 /* Make the old page be freed below */
104513 new_page = old_page;
104514 }
104515@@ -3072,6 +3102,10 @@ retry:
104516 && (vma->vm_flags & VM_SHARED)));
104517 set_huge_pte_at(mm, address, ptep, new_pte);
104518
104519+#ifdef CONFIG_PAX_SEGMEXEC
104520+ pax_mirror_huge_pte(vma, address, page);
104521+#endif
104522+
104523 if ((flags & FAULT_FLAG_WRITE) && !(vma->vm_flags & VM_SHARED)) {
104524 /* Optimization, do the COW without a second fault */
104525 ret = hugetlb_cow(mm, vma, address, ptep, new_pte, page, ptl);
104526@@ -3139,6 +3173,10 @@ int hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma,
104527 struct address_space *mapping;
104528 int need_wait_lock = 0;
104529
104530+#ifdef CONFIG_PAX_SEGMEXEC
104531+ struct vm_area_struct *vma_m;
104532+#endif
104533+
104534 address &= huge_page_mask(h);
104535
104536 ptep = huge_pte_offset(mm, address);
104537@@ -3152,6 +3190,26 @@ int hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma,
104538 VM_FAULT_SET_HINDEX(hstate_index(h));
104539 }
104540
104541+#ifdef CONFIG_PAX_SEGMEXEC
104542+ vma_m = pax_find_mirror_vma(vma);
104543+ if (vma_m) {
104544+ unsigned long address_m;
104545+
104546+ if (vma->vm_start > vma_m->vm_start) {
104547+ address_m = address;
104548+ address -= SEGMEXEC_TASK_SIZE;
104549+ vma = vma_m;
104550+ h = hstate_vma(vma);
104551+ } else
104552+ address_m = address + SEGMEXEC_TASK_SIZE;
104553+
104554+ if (!huge_pte_alloc(mm, address_m, huge_page_size(h)))
104555+ return VM_FAULT_OOM;
104556+ address_m &= HPAGE_MASK;
104557+ unmap_hugepage_range(vma, address_m, address_m + HPAGE_SIZE, NULL);
104558+ }
104559+#endif
104560+
104561 ptep = huge_pte_alloc(mm, address, huge_page_size(h));
104562 if (!ptep)
104563 return VM_FAULT_OOM;
104564diff --git a/mm/internal.h b/mm/internal.h
104565index a96da5b..42ebd54 100644
104566--- a/mm/internal.h
104567+++ b/mm/internal.h
104568@@ -156,6 +156,7 @@ __find_buddy_index(unsigned long page_idx, unsigned int order)
104569
104570 extern int __isolate_free_page(struct page *page, unsigned int order);
104571 extern void __free_pages_bootmem(struct page *page, unsigned int order);
104572+extern void free_compound_page(struct page *page);
104573 extern void prep_compound_page(struct page *page, unsigned long order);
104574 #ifdef CONFIG_MEMORY_FAILURE
104575 extern bool is_free_buddy_page(struct page *page);
104576@@ -411,7 +412,7 @@ extern u32 hwpoison_filter_enable;
104577
104578 extern unsigned long vm_mmap_pgoff(struct file *, unsigned long,
104579 unsigned long, unsigned long,
104580- unsigned long, unsigned long);
104581+ unsigned long, unsigned long) __intentional_overflow(-1);
104582
104583 extern void set_pageblock_order(void);
104584 unsigned long reclaim_clean_pages_from_list(struct zone *zone,
104585diff --git a/mm/kmemleak.c b/mm/kmemleak.c
104586index f0fe4f2..898208c 100644
104587--- a/mm/kmemleak.c
104588+++ b/mm/kmemleak.c
104589@@ -366,7 +366,7 @@ static void print_unreferenced(struct seq_file *seq,
104590
104591 for (i = 0; i < object->trace_len; i++) {
104592 void *ptr = (void *)object->trace[i];
104593- seq_printf(seq, " [<%p>] %pS\n", ptr, ptr);
104594+ seq_printf(seq, " [<%pP>] %pA\n", ptr, ptr);
104595 }
104596 }
104597
104598@@ -1912,7 +1912,7 @@ static int __init kmemleak_late_init(void)
104599 return -ENOMEM;
104600 }
104601
104602- dentry = debugfs_create_file("kmemleak", S_IRUGO, NULL, NULL,
104603+ dentry = debugfs_create_file("kmemleak", S_IRUSR, NULL, NULL,
104604 &kmemleak_fops);
104605 if (!dentry)
104606 pr_warning("Failed to create the debugfs kmemleak file\n");
104607diff --git a/mm/maccess.c b/mm/maccess.c
104608index d53adf9..03a24bf 100644
104609--- a/mm/maccess.c
104610+++ b/mm/maccess.c
104611@@ -26,7 +26,7 @@ long __probe_kernel_read(void *dst, const void *src, size_t size)
104612 set_fs(KERNEL_DS);
104613 pagefault_disable();
104614 ret = __copy_from_user_inatomic(dst,
104615- (__force const void __user *)src, size);
104616+ (const void __force_user *)src, size);
104617 pagefault_enable();
104618 set_fs(old_fs);
104619
104620@@ -53,7 +53,7 @@ long __probe_kernel_write(void *dst, const void *src, size_t size)
104621
104622 set_fs(KERNEL_DS);
104623 pagefault_disable();
104624- ret = __copy_to_user_inatomic((__force void __user *)dst, src, size);
104625+ ret = __copy_to_user_inatomic((void __force_user *)dst, src, size);
104626 pagefault_enable();
104627 set_fs(old_fs);
104628
104629diff --git a/mm/madvise.c b/mm/madvise.c
104630index d551475..8fdd7f3 100644
104631--- a/mm/madvise.c
104632+++ b/mm/madvise.c
104633@@ -51,6 +51,10 @@ static long madvise_behavior(struct vm_area_struct *vma,
104634 pgoff_t pgoff;
104635 unsigned long new_flags = vma->vm_flags;
104636
104637+#ifdef CONFIG_PAX_SEGMEXEC
104638+ struct vm_area_struct *vma_m;
104639+#endif
104640+
104641 switch (behavior) {
104642 case MADV_NORMAL:
104643 new_flags = new_flags & ~VM_RAND_READ & ~VM_SEQ_READ;
104644@@ -126,6 +130,13 @@ success:
104645 /*
104646 * vm_flags is protected by the mmap_sem held in write mode.
104647 */
104648+
104649+#ifdef CONFIG_PAX_SEGMEXEC
104650+ vma_m = pax_find_mirror_vma(vma);
104651+ if (vma_m)
104652+ vma_m->vm_flags = new_flags & ~(VM_WRITE | VM_MAYWRITE | VM_ACCOUNT);
104653+#endif
104654+
104655 vma->vm_flags = new_flags;
104656
104657 out:
104658@@ -277,11 +288,27 @@ static long madvise_dontneed(struct vm_area_struct *vma,
104659 struct vm_area_struct **prev,
104660 unsigned long start, unsigned long end)
104661 {
104662+
104663+#ifdef CONFIG_PAX_SEGMEXEC
104664+ struct vm_area_struct *vma_m;
104665+#endif
104666+
104667 *prev = vma;
104668 if (vma->vm_flags & (VM_LOCKED|VM_HUGETLB|VM_PFNMAP))
104669 return -EINVAL;
104670
104671 zap_page_range(vma, start, end - start, NULL);
104672+
104673+#ifdef CONFIG_PAX_SEGMEXEC
104674+ vma_m = pax_find_mirror_vma(vma);
104675+ if (vma_m) {
104676+ if (vma_m->vm_flags & (VM_LOCKED|VM_HUGETLB|VM_PFNMAP))
104677+ return -EINVAL;
104678+
104679+ zap_page_range(vma_m, start + SEGMEXEC_TASK_SIZE, end - start, NULL);
104680+ }
104681+#endif
104682+
104683 return 0;
104684 }
104685
104686@@ -484,6 +511,16 @@ SYSCALL_DEFINE3(madvise, unsigned long, start, size_t, len_in, int, behavior)
104687 if (end < start)
104688 return error;
104689
104690+#ifdef CONFIG_PAX_SEGMEXEC
104691+ if (current->mm->pax_flags & MF_PAX_SEGMEXEC) {
104692+ if (end > SEGMEXEC_TASK_SIZE)
104693+ return error;
104694+ } else
104695+#endif
104696+
104697+ if (end > TASK_SIZE)
104698+ return error;
104699+
104700 error = 0;
104701 if (end == start)
104702 return error;
104703diff --git a/mm/memory-failure.c b/mm/memory-failure.c
104704index 72a5224..51ba846 100644
104705--- a/mm/memory-failure.c
104706+++ b/mm/memory-failure.c
104707@@ -61,7 +61,7 @@ int sysctl_memory_failure_early_kill __read_mostly = 0;
104708
104709 int sysctl_memory_failure_recovery __read_mostly = 1;
104710
104711-atomic_long_t num_poisoned_pages __read_mostly = ATOMIC_LONG_INIT(0);
104712+atomic_long_unchecked_t num_poisoned_pages __read_mostly = ATOMIC_LONG_INIT(0);
104713
104714 #if defined(CONFIG_HWPOISON_INJECT) || defined(CONFIG_HWPOISON_INJECT_MODULE)
104715
104716@@ -198,7 +198,7 @@ static int kill_proc(struct task_struct *t, unsigned long addr, int trapno,
104717 pfn, t->comm, t->pid);
104718 si.si_signo = SIGBUS;
104719 si.si_errno = 0;
104720- si.si_addr = (void *)addr;
104721+ si.si_addr = (void __user *)addr;
104722 #ifdef __ARCH_SI_TRAPNO
104723 si.si_trapno = trapno;
104724 #endif
104725@@ -779,7 +779,7 @@ static struct page_state {
104726 unsigned long res;
104727 char *msg;
104728 int (*action)(struct page *p, unsigned long pfn);
104729-} error_states[] = {
104730+} __do_const error_states[] = {
104731 { reserved, reserved, "reserved kernel", me_kernel },
104732 /*
104733 * free pages are specially detected outside this table:
104734@@ -1087,7 +1087,7 @@ int memory_failure(unsigned long pfn, int trapno, int flags)
104735 nr_pages = 1 << compound_order(hpage);
104736 else /* normal page or thp */
104737 nr_pages = 1;
104738- atomic_long_add(nr_pages, &num_poisoned_pages);
104739+ atomic_long_add_unchecked(nr_pages, &num_poisoned_pages);
104740
104741 /*
104742 * We need/can do nothing about count=0 pages.
104743@@ -1116,7 +1116,7 @@ int memory_failure(unsigned long pfn, int trapno, int flags)
104744 if (PageHWPoison(hpage)) {
104745 if ((hwpoison_filter(p) && TestClearPageHWPoison(p))
104746 || (p != hpage && TestSetPageHWPoison(hpage))) {
104747- atomic_long_sub(nr_pages, &num_poisoned_pages);
104748+ atomic_long_sub_unchecked(nr_pages, &num_poisoned_pages);
104749 unlock_page(hpage);
104750 return 0;
104751 }
104752@@ -1184,14 +1184,14 @@ int memory_failure(unsigned long pfn, int trapno, int flags)
104753 */
104754 if (!PageHWPoison(p)) {
104755 printk(KERN_ERR "MCE %#lx: just unpoisoned\n", pfn);
104756- atomic_long_sub(nr_pages, &num_poisoned_pages);
104757+ atomic_long_sub_unchecked(nr_pages, &num_poisoned_pages);
104758 put_page(hpage);
104759 res = 0;
104760 goto out;
104761 }
104762 if (hwpoison_filter(p)) {
104763 if (TestClearPageHWPoison(p))
104764- atomic_long_sub(nr_pages, &num_poisoned_pages);
104765+ atomic_long_sub_unchecked(nr_pages, &num_poisoned_pages);
104766 unlock_page(hpage);
104767 put_page(hpage);
104768 return 0;
104769@@ -1421,7 +1421,7 @@ int unpoison_memory(unsigned long pfn)
104770 return 0;
104771 }
104772 if (TestClearPageHWPoison(p))
104773- atomic_long_dec(&num_poisoned_pages);
104774+ atomic_long_dec_unchecked(&num_poisoned_pages);
104775 pr_info("MCE: Software-unpoisoned free page %#lx\n", pfn);
104776 return 0;
104777 }
104778@@ -1435,7 +1435,7 @@ int unpoison_memory(unsigned long pfn)
104779 */
104780 if (TestClearPageHWPoison(page)) {
104781 pr_info("MCE: Software-unpoisoned page %#lx\n", pfn);
104782- atomic_long_sub(nr_pages, &num_poisoned_pages);
104783+ atomic_long_sub_unchecked(nr_pages, &num_poisoned_pages);
104784 freeit = 1;
104785 if (PageHuge(page))
104786 clear_page_hwpoison_huge_page(page);
104787@@ -1560,11 +1560,11 @@ static int soft_offline_huge_page(struct page *page, int flags)
104788 if (PageHuge(page)) {
104789 set_page_hwpoison_huge_page(hpage);
104790 dequeue_hwpoisoned_huge_page(hpage);
104791- atomic_long_add(1 << compound_order(hpage),
104792+ atomic_long_add_unchecked(1 << compound_order(hpage),
104793 &num_poisoned_pages);
104794 } else {
104795 SetPageHWPoison(page);
104796- atomic_long_inc(&num_poisoned_pages);
104797+ atomic_long_inc_unchecked(&num_poisoned_pages);
104798 }
104799 }
104800 return ret;
104801@@ -1603,7 +1603,7 @@ static int __soft_offline_page(struct page *page, int flags)
104802 put_page(page);
104803 pr_info("soft_offline: %#lx: invalidated\n", pfn);
104804 SetPageHWPoison(page);
104805- atomic_long_inc(&num_poisoned_pages);
104806+ atomic_long_inc_unchecked(&num_poisoned_pages);
104807 return 0;
104808 }
104809
104810@@ -1652,7 +1652,7 @@ static int __soft_offline_page(struct page *page, int flags)
104811 if (!is_free_buddy_page(page))
104812 pr_info("soft offline: %#lx: page leaked\n",
104813 pfn);
104814- atomic_long_inc(&num_poisoned_pages);
104815+ atomic_long_inc_unchecked(&num_poisoned_pages);
104816 }
104817 } else {
104818 pr_info("soft offline: %#lx: isolation failed: %d, page count %d, type %lx\n",
104819@@ -1722,11 +1722,11 @@ int soft_offline_page(struct page *page, int flags)
104820 if (PageHuge(page)) {
104821 set_page_hwpoison_huge_page(hpage);
104822 if (!dequeue_hwpoisoned_huge_page(hpage))
104823- atomic_long_add(1 << compound_order(hpage),
104824+ atomic_long_add_unchecked(1 << compound_order(hpage),
104825 &num_poisoned_pages);
104826 } else {
104827 if (!TestSetPageHWPoison(page))
104828- atomic_long_inc(&num_poisoned_pages);
104829+ atomic_long_inc_unchecked(&num_poisoned_pages);
104830 }
104831 }
104832 unset_migratetype_isolate(page, MIGRATE_MOVABLE);
104833diff --git a/mm/memory.c b/mm/memory.c
104834index 97839f5..4bc5530 100644
104835--- a/mm/memory.c
104836+++ b/mm/memory.c
104837@@ -414,6 +414,7 @@ static inline void free_pmd_range(struct mmu_gather *tlb, pud_t *pud,
104838 free_pte_range(tlb, pmd, addr);
104839 } while (pmd++, addr = next, addr != end);
104840
104841+#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_PER_CPU_PGD)
104842 start &= PUD_MASK;
104843 if (start < floor)
104844 return;
104845@@ -429,6 +430,7 @@ static inline void free_pmd_range(struct mmu_gather *tlb, pud_t *pud,
104846 pud_clear(pud);
104847 pmd_free_tlb(tlb, pmd, start);
104848 mm_dec_nr_pmds(tlb->mm);
104849+#endif
104850 }
104851
104852 static inline void free_pud_range(struct mmu_gather *tlb, pgd_t *pgd,
104853@@ -448,6 +450,7 @@ static inline void free_pud_range(struct mmu_gather *tlb, pgd_t *pgd,
104854 free_pmd_range(tlb, pud, addr, next, floor, ceiling);
104855 } while (pud++, addr = next, addr != end);
104856
104857+#if !defined(CONFIG_X86_64) || !defined(CONFIG_PAX_PER_CPU_PGD)
104858 start &= PGDIR_MASK;
104859 if (start < floor)
104860 return;
104861@@ -462,6 +465,8 @@ static inline void free_pud_range(struct mmu_gather *tlb, pgd_t *pgd,
104862 pud = pud_offset(pgd, start);
104863 pgd_clear(pgd);
104864 pud_free_tlb(tlb, pud, start);
104865+#endif
104866+
104867 }
104868
104869 /*
104870@@ -691,10 +696,10 @@ static void print_bad_pte(struct vm_area_struct *vma, unsigned long addr,
104871 * Choose text because data symbols depend on CONFIG_KALLSYMS_ALL=y
104872 */
104873 if (vma->vm_ops)
104874- printk(KERN_ALERT "vma->vm_ops->fault: %pSR\n",
104875+ printk(KERN_ALERT "vma->vm_ops->fault: %pAR\n",
104876 vma->vm_ops->fault);
104877 if (vma->vm_file)
104878- printk(KERN_ALERT "vma->vm_file->f_op->mmap: %pSR\n",
104879+ printk(KERN_ALERT "vma->vm_file->f_op->mmap: %pAR\n",
104880 vma->vm_file->f_op->mmap);
104881 dump_stack();
104882 add_taint(TAINT_BAD_PAGE, LOCKDEP_NOW_UNRELIABLE);
104883@@ -1464,6 +1469,10 @@ static int insert_page(struct vm_area_struct *vma, unsigned long addr,
104884 page_add_file_rmap(page);
104885 set_pte_at(mm, addr, pte, mk_pte(page, prot));
104886
104887+#ifdef CONFIG_PAX_SEGMEXEC
104888+ pax_mirror_file_pte(vma, addr, page, ptl);
104889+#endif
104890+
104891 retval = 0;
104892 pte_unmap_unlock(pte, ptl);
104893 return retval;
104894@@ -1508,9 +1517,21 @@ int vm_insert_page(struct vm_area_struct *vma, unsigned long addr,
104895 if (!page_count(page))
104896 return -EINVAL;
104897 if (!(vma->vm_flags & VM_MIXEDMAP)) {
104898+
104899+#ifdef CONFIG_PAX_SEGMEXEC
104900+ struct vm_area_struct *vma_m;
104901+#endif
104902+
104903 BUG_ON(down_read_trylock(&vma->vm_mm->mmap_sem));
104904 BUG_ON(vma->vm_flags & VM_PFNMAP);
104905 vma->vm_flags |= VM_MIXEDMAP;
104906+
104907+#ifdef CONFIG_PAX_SEGMEXEC
104908+ vma_m = pax_find_mirror_vma(vma);
104909+ if (vma_m)
104910+ vma_m->vm_flags |= VM_MIXEDMAP;
104911+#endif
104912+
104913 }
104914 return insert_page(vma, addr, page, vma->vm_page_prot);
104915 }
104916@@ -1593,6 +1614,7 @@ int vm_insert_mixed(struct vm_area_struct *vma, unsigned long addr,
104917 unsigned long pfn)
104918 {
104919 BUG_ON(!(vma->vm_flags & VM_MIXEDMAP));
104920+ BUG_ON(vma->vm_mirror);
104921
104922 if (addr < vma->vm_start || addr >= vma->vm_end)
104923 return -EFAULT;
104924@@ -1840,7 +1862,9 @@ static int apply_to_pmd_range(struct mm_struct *mm, pud_t *pud,
104925
104926 BUG_ON(pud_huge(*pud));
104927
104928- pmd = pmd_alloc(mm, pud, addr);
104929+ pmd = (mm == &init_mm) ?
104930+ pmd_alloc_kernel(mm, pud, addr) :
104931+ pmd_alloc(mm, pud, addr);
104932 if (!pmd)
104933 return -ENOMEM;
104934 do {
104935@@ -1860,7 +1884,9 @@ static int apply_to_pud_range(struct mm_struct *mm, pgd_t *pgd,
104936 unsigned long next;
104937 int err;
104938
104939- pud = pud_alloc(mm, pgd, addr);
104940+ pud = (mm == &init_mm) ?
104941+ pud_alloc_kernel(mm, pgd, addr) :
104942+ pud_alloc(mm, pgd, addr);
104943 if (!pud)
104944 return -ENOMEM;
104945 do {
104946@@ -1982,6 +2008,185 @@ static int do_page_mkwrite(struct vm_area_struct *vma, struct page *page,
104947 return ret;
104948 }
104949
104950+#ifdef CONFIG_PAX_SEGMEXEC
104951+static void pax_unmap_mirror_pte(struct vm_area_struct *vma, unsigned long address, pmd_t *pmd)
104952+{
104953+ struct mm_struct *mm = vma->vm_mm;
104954+ spinlock_t *ptl;
104955+ pte_t *pte, entry;
104956+
104957+ pte = pte_offset_map_lock(mm, pmd, address, &ptl);
104958+ entry = *pte;
104959+ if (!pte_present(entry)) {
104960+ if (!pte_none(entry)) {
104961+ free_swap_and_cache(pte_to_swp_entry(entry));
104962+ pte_clear_not_present_full(mm, address, pte, 0);
104963+ }
104964+ } else {
104965+ struct page *page;
104966+
104967+ flush_cache_page(vma, address, pte_pfn(entry));
104968+ entry = ptep_clear_flush(vma, address, pte);
104969+ BUG_ON(pte_dirty(entry));
104970+ page = vm_normal_page(vma, address, entry);
104971+ if (page) {
104972+ update_hiwater_rss(mm);
104973+ if (PageAnon(page))
104974+ dec_mm_counter_fast(mm, MM_ANONPAGES);
104975+ else
104976+ dec_mm_counter_fast(mm, MM_FILEPAGES);
104977+ page_remove_rmap(page);
104978+ page_cache_release(page);
104979+ }
104980+ }
104981+ pte_unmap_unlock(pte, ptl);
104982+}
104983+
104984+/* PaX: if vma is mirrored, synchronize the mirror's PTE
104985+ *
104986+ * the ptl of the lower mapped page is held on entry and is not released on exit
104987+ * or inside to ensure atomic changes to the PTE states (swapout, mremap, munmap, etc)
104988+ */
104989+static void pax_mirror_anon_pte(struct vm_area_struct *vma, unsigned long address, struct page *page_m, spinlock_t *ptl)
104990+{
104991+ struct mm_struct *mm = vma->vm_mm;
104992+ unsigned long address_m;
104993+ spinlock_t *ptl_m;
104994+ struct vm_area_struct *vma_m;
104995+ pmd_t *pmd_m;
104996+ pte_t *pte_m, entry_m;
104997+
104998+ BUG_ON(!page_m || !PageAnon(page_m));
104999+
105000+ vma_m = pax_find_mirror_vma(vma);
105001+ if (!vma_m)
105002+ return;
105003+
105004+ BUG_ON(!PageLocked(page_m));
105005+ BUG_ON(address >= SEGMEXEC_TASK_SIZE);
105006+ address_m = address + SEGMEXEC_TASK_SIZE;
105007+ pmd_m = pmd_offset(pud_offset(pgd_offset(mm, address_m), address_m), address_m);
105008+ pte_m = pte_offset_map(pmd_m, address_m);
105009+ ptl_m = pte_lockptr(mm, pmd_m);
105010+ if (ptl != ptl_m) {
105011+ spin_lock_nested(ptl_m, SINGLE_DEPTH_NESTING);
105012+ if (!pte_none(*pte_m))
105013+ goto out;
105014+ }
105015+
105016+ entry_m = pfn_pte(page_to_pfn(page_m), vma_m->vm_page_prot);
105017+ page_cache_get(page_m);
105018+ page_add_anon_rmap(page_m, vma_m, address_m);
105019+ inc_mm_counter_fast(mm, MM_ANONPAGES);
105020+ set_pte_at(mm, address_m, pte_m, entry_m);
105021+ update_mmu_cache(vma_m, address_m, pte_m);
105022+out:
105023+ if (ptl != ptl_m)
105024+ spin_unlock(ptl_m);
105025+ pte_unmap(pte_m);
105026+ unlock_page(page_m);
105027+}
105028+
105029+void pax_mirror_file_pte(struct vm_area_struct *vma, unsigned long address, struct page *page_m, spinlock_t *ptl)
105030+{
105031+ struct mm_struct *mm = vma->vm_mm;
105032+ unsigned long address_m;
105033+ spinlock_t *ptl_m;
105034+ struct vm_area_struct *vma_m;
105035+ pmd_t *pmd_m;
105036+ pte_t *pte_m, entry_m;
105037+
105038+ BUG_ON(!page_m || PageAnon(page_m));
105039+
105040+ vma_m = pax_find_mirror_vma(vma);
105041+ if (!vma_m)
105042+ return;
105043+
105044+ BUG_ON(address >= SEGMEXEC_TASK_SIZE);
105045+ address_m = address + SEGMEXEC_TASK_SIZE;
105046+ pmd_m = pmd_offset(pud_offset(pgd_offset(mm, address_m), address_m), address_m);
105047+ pte_m = pte_offset_map(pmd_m, address_m);
105048+ ptl_m = pte_lockptr(mm, pmd_m);
105049+ if (ptl != ptl_m) {
105050+ spin_lock_nested(ptl_m, SINGLE_DEPTH_NESTING);
105051+ if (!pte_none(*pte_m))
105052+ goto out;
105053+ }
105054+
105055+ entry_m = pfn_pte(page_to_pfn(page_m), vma_m->vm_page_prot);
105056+ page_cache_get(page_m);
105057+ page_add_file_rmap(page_m);
105058+ inc_mm_counter_fast(mm, MM_FILEPAGES);
105059+ set_pte_at(mm, address_m, pte_m, entry_m);
105060+ update_mmu_cache(vma_m, address_m, pte_m);
105061+out:
105062+ if (ptl != ptl_m)
105063+ spin_unlock(ptl_m);
105064+ pte_unmap(pte_m);
105065+}
105066+
105067+static void pax_mirror_pfn_pte(struct vm_area_struct *vma, unsigned long address, unsigned long pfn_m, spinlock_t *ptl)
105068+{
105069+ struct mm_struct *mm = vma->vm_mm;
105070+ unsigned long address_m;
105071+ spinlock_t *ptl_m;
105072+ struct vm_area_struct *vma_m;
105073+ pmd_t *pmd_m;
105074+ pte_t *pte_m, entry_m;
105075+
105076+ vma_m = pax_find_mirror_vma(vma);
105077+ if (!vma_m)
105078+ return;
105079+
105080+ BUG_ON(address >= SEGMEXEC_TASK_SIZE);
105081+ address_m = address + SEGMEXEC_TASK_SIZE;
105082+ pmd_m = pmd_offset(pud_offset(pgd_offset(mm, address_m), address_m), address_m);
105083+ pte_m = pte_offset_map(pmd_m, address_m);
105084+ ptl_m = pte_lockptr(mm, pmd_m);
105085+ if (ptl != ptl_m) {
105086+ spin_lock_nested(ptl_m, SINGLE_DEPTH_NESTING);
105087+ if (!pte_none(*pte_m))
105088+ goto out;
105089+ }
105090+
105091+ entry_m = pfn_pte(pfn_m, vma_m->vm_page_prot);
105092+ set_pte_at(mm, address_m, pte_m, entry_m);
105093+out:
105094+ if (ptl != ptl_m)
105095+ spin_unlock(ptl_m);
105096+ pte_unmap(pte_m);
105097+}
105098+
105099+static void pax_mirror_pte(struct vm_area_struct *vma, unsigned long address, pte_t *pte, pmd_t *pmd, spinlock_t *ptl)
105100+{
105101+ struct page *page_m;
105102+ pte_t entry;
105103+
105104+ if (!(vma->vm_mm->pax_flags & MF_PAX_SEGMEXEC))
105105+ goto out;
105106+
105107+ entry = *pte;
105108+ page_m = vm_normal_page(vma, address, entry);
105109+ if (!page_m)
105110+ pax_mirror_pfn_pte(vma, address, pte_pfn(entry), ptl);
105111+ else if (PageAnon(page_m)) {
105112+ if (pax_find_mirror_vma(vma)) {
105113+ pte_unmap_unlock(pte, ptl);
105114+ lock_page(page_m);
105115+ pte = pte_offset_map_lock(vma->vm_mm, pmd, address, &ptl);
105116+ if (pte_same(entry, *pte))
105117+ pax_mirror_anon_pte(vma, address, page_m, ptl);
105118+ else
105119+ unlock_page(page_m);
105120+ }
105121+ } else
105122+ pax_mirror_file_pte(vma, address, page_m, ptl);
105123+
105124+out:
105125+ pte_unmap_unlock(pte, ptl);
105126+}
105127+#endif
105128+
105129 /*
105130 * This routine handles present pages, when users try to write
105131 * to a shared page. It is done by copying the page to a new address
105132@@ -2172,6 +2377,12 @@ gotten:
105133 */
105134 page_table = pte_offset_map_lock(mm, pmd, address, &ptl);
105135 if (likely(pte_same(*page_table, orig_pte))) {
105136+
105137+#ifdef CONFIG_PAX_SEGMEXEC
105138+ if (pax_find_mirror_vma(vma))
105139+ BUG_ON(!trylock_page(new_page));
105140+#endif
105141+
105142 if (old_page) {
105143 if (!PageAnon(old_page)) {
105144 dec_mm_counter_fast(mm, MM_FILEPAGES);
105145@@ -2225,6 +2436,10 @@ gotten:
105146 page_remove_rmap(old_page);
105147 }
105148
105149+#ifdef CONFIG_PAX_SEGMEXEC
105150+ pax_mirror_anon_pte(vma, address, new_page, ptl);
105151+#endif
105152+
105153 /* Free the old page.. */
105154 new_page = old_page;
105155 ret |= VM_FAULT_WRITE;
105156@@ -2483,6 +2698,11 @@ static int do_swap_page(struct mm_struct *mm, struct vm_area_struct *vma,
105157 swap_free(entry);
105158 if (vm_swap_full() || (vma->vm_flags & VM_LOCKED) || PageMlocked(page))
105159 try_to_free_swap(page);
105160+
105161+#ifdef CONFIG_PAX_SEGMEXEC
105162+ if ((flags & FAULT_FLAG_WRITE) || !pax_find_mirror_vma(vma))
105163+#endif
105164+
105165 unlock_page(page);
105166 if (page != swapcache) {
105167 /*
105168@@ -2506,6 +2726,11 @@ static int do_swap_page(struct mm_struct *mm, struct vm_area_struct *vma,
105169
105170 /* No need to invalidate - it was non-present before */
105171 update_mmu_cache(vma, address, page_table);
105172+
105173+#ifdef CONFIG_PAX_SEGMEXEC
105174+ pax_mirror_anon_pte(vma, address, page, ptl);
105175+#endif
105176+
105177 unlock:
105178 pte_unmap_unlock(page_table, ptl);
105179 out:
105180@@ -2525,40 +2750,6 @@ out_release:
105181 }
105182
105183 /*
105184- * This is like a special single-page "expand_{down|up}wards()",
105185- * except we must first make sure that 'address{-|+}PAGE_SIZE'
105186- * doesn't hit another vma.
105187- */
105188-static inline int check_stack_guard_page(struct vm_area_struct *vma, unsigned long address)
105189-{
105190- address &= PAGE_MASK;
105191- if ((vma->vm_flags & VM_GROWSDOWN) && address == vma->vm_start) {
105192- struct vm_area_struct *prev = vma->vm_prev;
105193-
105194- /*
105195- * Is there a mapping abutting this one below?
105196- *
105197- * That's only ok if it's the same stack mapping
105198- * that has gotten split..
105199- */
105200- if (prev && prev->vm_end == address)
105201- return prev->vm_flags & VM_GROWSDOWN ? 0 : -ENOMEM;
105202-
105203- return expand_downwards(vma, address - PAGE_SIZE);
105204- }
105205- if ((vma->vm_flags & VM_GROWSUP) && address + PAGE_SIZE == vma->vm_end) {
105206- struct vm_area_struct *next = vma->vm_next;
105207-
105208- /* As VM_GROWSDOWN but s/below/above/ */
105209- if (next && next->vm_start == address + PAGE_SIZE)
105210- return next->vm_flags & VM_GROWSUP ? 0 : -ENOMEM;
105211-
105212- return expand_upwards(vma, address + PAGE_SIZE);
105213- }
105214- return 0;
105215-}
105216-
105217-/*
105218 * We enter with non-exclusive mmap_sem (to exclude vma changes,
105219 * but allow concurrent faults), and pte mapped but not yet locked.
105220 * We return with mmap_sem still held, but pte unmapped and unlocked.
105221@@ -2568,27 +2759,23 @@ static int do_anonymous_page(struct mm_struct *mm, struct vm_area_struct *vma,
105222 unsigned int flags)
105223 {
105224 struct mem_cgroup *memcg;
105225- struct page *page;
105226+ struct page *page = NULL;
105227 spinlock_t *ptl;
105228 pte_t entry;
105229
105230- pte_unmap(page_table);
105231-
105232- /* Check if we need to add a guard page to the stack */
105233- if (check_stack_guard_page(vma, address) < 0)
105234- return VM_FAULT_SIGSEGV;
105235-
105236- /* Use the zero-page for reads */
105237 if (!(flags & FAULT_FLAG_WRITE) && !mm_forbids_zeropage(mm)) {
105238 entry = pte_mkspecial(pfn_pte(my_zero_pfn(address),
105239 vma->vm_page_prot));
105240- page_table = pte_offset_map_lock(mm, pmd, address, &ptl);
105241+ ptl = pte_lockptr(mm, pmd);
105242+ spin_lock(ptl);
105243 if (!pte_none(*page_table))
105244 goto unlock;
105245 goto setpte;
105246 }
105247
105248 /* Allocate our own private page. */
105249+ pte_unmap(page_table);
105250+
105251 if (unlikely(anon_vma_prepare(vma)))
105252 goto oom;
105253 page = alloc_zeroed_user_highpage_movable(vma, address);
105254@@ -2612,6 +2799,11 @@ static int do_anonymous_page(struct mm_struct *mm, struct vm_area_struct *vma,
105255 if (!pte_none(*page_table))
105256 goto release;
105257
105258+#ifdef CONFIG_PAX_SEGMEXEC
105259+ if (pax_find_mirror_vma(vma))
105260+ BUG_ON(!trylock_page(page));
105261+#endif
105262+
105263 inc_mm_counter_fast(mm, MM_ANONPAGES);
105264 page_add_new_anon_rmap(page, vma, address);
105265 mem_cgroup_commit_charge(page, memcg, false);
105266@@ -2621,6 +2813,12 @@ setpte:
105267
105268 /* No need to invalidate - it was non-present before */
105269 update_mmu_cache(vma, address, page_table);
105270+
105271+#ifdef CONFIG_PAX_SEGMEXEC
105272+ if (page)
105273+ pax_mirror_anon_pte(vma, address, page, ptl);
105274+#endif
105275+
105276 unlock:
105277 pte_unmap_unlock(page_table, ptl);
105278 return 0;
105279@@ -2853,6 +3051,11 @@ static int do_read_fault(struct mm_struct *mm, struct vm_area_struct *vma,
105280 return ret;
105281 }
105282 do_set_pte(vma, address, fault_page, pte, false, false);
105283+
105284+#ifdef CONFIG_PAX_SEGMEXEC
105285+ pax_mirror_file_pte(vma, address, fault_page, ptl);
105286+#endif
105287+
105288 unlock_page(fault_page);
105289 unlock_out:
105290 pte_unmap_unlock(pte, ptl);
105291@@ -2904,7 +3107,18 @@ static int do_cow_fault(struct mm_struct *mm, struct vm_area_struct *vma,
105292 }
105293 goto uncharge_out;
105294 }
105295+
105296+#ifdef CONFIG_PAX_SEGMEXEC
105297+ if (pax_find_mirror_vma(vma))
105298+ BUG_ON(!trylock_page(new_page));
105299+#endif
105300+
105301 do_set_pte(vma, address, new_page, pte, true, true);
105302+
105303+#ifdef CONFIG_PAX_SEGMEXEC
105304+ pax_mirror_anon_pte(vma, address, new_page, ptl);
105305+#endif
105306+
105307 mem_cgroup_commit_charge(new_page, memcg, false);
105308 lru_cache_add_active_or_unevictable(new_page, vma);
105309 pte_unmap_unlock(pte, ptl);
105310@@ -2962,6 +3176,11 @@ static int do_shared_fault(struct mm_struct *mm, struct vm_area_struct *vma,
105311 return ret;
105312 }
105313 do_set_pte(vma, address, fault_page, pte, true, false);
105314+
105315+#ifdef CONFIG_PAX_SEGMEXEC
105316+ pax_mirror_file_pte(vma, address, fault_page, ptl);
105317+#endif
105318+
105319 pte_unmap_unlock(pte, ptl);
105320
105321 if (set_page_dirty(fault_page))
105322@@ -3185,6 +3404,12 @@ static int handle_pte_fault(struct mm_struct *mm,
105323 if (flags & FAULT_FLAG_WRITE)
105324 flush_tlb_fix_spurious_fault(vma, address);
105325 }
105326+
105327+#ifdef CONFIG_PAX_SEGMEXEC
105328+ pax_mirror_pte(vma, address, pte, pmd, ptl);
105329+ return 0;
105330+#endif
105331+
105332 unlock:
105333 pte_unmap_unlock(pte, ptl);
105334 return 0;
105335@@ -3204,9 +3429,41 @@ static int __handle_mm_fault(struct mm_struct *mm, struct vm_area_struct *vma,
105336 pmd_t *pmd;
105337 pte_t *pte;
105338
105339+#ifdef CONFIG_PAX_SEGMEXEC
105340+ struct vm_area_struct *vma_m;
105341+#endif
105342+
105343 if (unlikely(is_vm_hugetlb_page(vma)))
105344 return hugetlb_fault(mm, vma, address, flags);
105345
105346+#ifdef CONFIG_PAX_SEGMEXEC
105347+ vma_m = pax_find_mirror_vma(vma);
105348+ if (vma_m) {
105349+ unsigned long address_m;
105350+ pgd_t *pgd_m;
105351+ pud_t *pud_m;
105352+ pmd_t *pmd_m;
105353+
105354+ if (vma->vm_start > vma_m->vm_start) {
105355+ address_m = address;
105356+ address -= SEGMEXEC_TASK_SIZE;
105357+ vma = vma_m;
105358+ } else
105359+ address_m = address + SEGMEXEC_TASK_SIZE;
105360+
105361+ pgd_m = pgd_offset(mm, address_m);
105362+ pud_m = pud_alloc(mm, pgd_m, address_m);
105363+ if (!pud_m)
105364+ return VM_FAULT_OOM;
105365+ pmd_m = pmd_alloc(mm, pud_m, address_m);
105366+ if (!pmd_m)
105367+ return VM_FAULT_OOM;
105368+ if (!pmd_present(*pmd_m) && __pte_alloc(mm, vma_m, pmd_m, address_m))
105369+ return VM_FAULT_OOM;
105370+ pax_unmap_mirror_pte(vma_m, address_m, pmd_m);
105371+ }
105372+#endif
105373+
105374 pgd = pgd_offset(mm, address);
105375 pud = pud_alloc(mm, pgd, address);
105376 if (!pud)
105377@@ -3341,6 +3598,23 @@ int __pud_alloc(struct mm_struct *mm, pgd_t *pgd, unsigned long address)
105378 spin_unlock(&mm->page_table_lock);
105379 return 0;
105380 }
105381+
105382+int __pud_alloc_kernel(struct mm_struct *mm, pgd_t *pgd, unsigned long address)
105383+{
105384+ pud_t *new = pud_alloc_one(mm, address);
105385+ if (!new)
105386+ return -ENOMEM;
105387+
105388+ smp_wmb(); /* See comment in __pte_alloc */
105389+
105390+ spin_lock(&mm->page_table_lock);
105391+ if (pgd_present(*pgd)) /* Another has populated it */
105392+ pud_free(mm, new);
105393+ else
105394+ pgd_populate_kernel(mm, pgd, new);
105395+ spin_unlock(&mm->page_table_lock);
105396+ return 0;
105397+}
105398 #endif /* __PAGETABLE_PUD_FOLDED */
105399
105400 #ifndef __PAGETABLE_PMD_FOLDED
105401@@ -3373,6 +3647,32 @@ int __pmd_alloc(struct mm_struct *mm, pud_t *pud, unsigned long address)
105402 spin_unlock(&mm->page_table_lock);
105403 return 0;
105404 }
105405+
105406+int __pmd_alloc_kernel(struct mm_struct *mm, pud_t *pud, unsigned long address)
105407+{
105408+ pmd_t *new = pmd_alloc_one(mm, address);
105409+ if (!new)
105410+ return -ENOMEM;
105411+
105412+ smp_wmb(); /* See comment in __pte_alloc */
105413+
105414+ spin_lock(&mm->page_table_lock);
105415+#ifndef __ARCH_HAS_4LEVEL_HACK
105416+ if (!pud_present(*pud)) {
105417+ mm_inc_nr_pmds(mm);
105418+ pud_populate_kernel(mm, pud, new);
105419+ } else /* Another has populated it */
105420+ pmd_free(mm, new);
105421+#else
105422+ if (!pgd_present(*pud)) {
105423+ mm_inc_nr_pmds(mm);
105424+ pgd_populate_kernel(mm, pud, new);
105425+ } else /* Another has populated it */
105426+ pmd_free(mm, new);
105427+#endif /* __ARCH_HAS_4LEVEL_HACK */
105428+ spin_unlock(&mm->page_table_lock);
105429+ return 0;
105430+}
105431 #endif /* __PAGETABLE_PMD_FOLDED */
105432
105433 static int __follow_pte(struct mm_struct *mm, unsigned long address,
105434@@ -3482,8 +3782,8 @@ out:
105435 return ret;
105436 }
105437
105438-int generic_access_phys(struct vm_area_struct *vma, unsigned long addr,
105439- void *buf, int len, int write)
105440+ssize_t generic_access_phys(struct vm_area_struct *vma, unsigned long addr,
105441+ void *buf, size_t len, int write)
105442 {
105443 resource_size_t phys_addr;
105444 unsigned long prot = 0;
105445@@ -3509,8 +3809,8 @@ EXPORT_SYMBOL_GPL(generic_access_phys);
105446 * Access another process' address space as given in mm. If non-NULL, use the
105447 * given task for page fault accounting.
105448 */
105449-static int __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm,
105450- unsigned long addr, void *buf, int len, int write)
105451+static ssize_t __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm,
105452+ unsigned long addr, void *buf, size_t len, int write)
105453 {
105454 struct vm_area_struct *vma;
105455 void *old_buf = buf;
105456@@ -3518,7 +3818,7 @@ static int __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm,
105457 down_read(&mm->mmap_sem);
105458 /* ignore errors, just check how much was successfully transferred */
105459 while (len) {
105460- int bytes, ret, offset;
105461+ ssize_t bytes, ret, offset;
105462 void *maddr;
105463 struct page *page = NULL;
105464
105465@@ -3579,8 +3879,8 @@ static int __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm,
105466 *
105467 * The caller must hold a reference on @mm.
105468 */
105469-int access_remote_vm(struct mm_struct *mm, unsigned long addr,
105470- void *buf, int len, int write)
105471+ssize_t access_remote_vm(struct mm_struct *mm, unsigned long addr,
105472+ void *buf, size_t len, int write)
105473 {
105474 return __access_remote_vm(NULL, mm, addr, buf, len, write);
105475 }
105476@@ -3590,11 +3890,11 @@ int access_remote_vm(struct mm_struct *mm, unsigned long addr,
105477 * Source/target buffer must be kernel space,
105478 * Do not walk the page table directly, use get_user_pages
105479 */
105480-int access_process_vm(struct task_struct *tsk, unsigned long addr,
105481- void *buf, int len, int write)
105482+ssize_t access_process_vm(struct task_struct *tsk, unsigned long addr,
105483+ void *buf, size_t len, int write)
105484 {
105485 struct mm_struct *mm;
105486- int ret;
105487+ ssize_t ret;
105488
105489 mm = get_task_mm(tsk);
105490 if (!mm)
105491diff --git a/mm/mempolicy.c b/mm/mempolicy.c
105492index 0f7d73b..737047f 100644
105493--- a/mm/mempolicy.c
105494+++ b/mm/mempolicy.c
105495@@ -703,6 +703,10 @@ static int mbind_range(struct mm_struct *mm, unsigned long start,
105496 unsigned long vmstart;
105497 unsigned long vmend;
105498
105499+#ifdef CONFIG_PAX_SEGMEXEC
105500+ struct vm_area_struct *vma_m;
105501+#endif
105502+
105503 vma = find_vma(mm, start);
105504 if (!vma || vma->vm_start > start)
105505 return -EFAULT;
105506@@ -746,6 +750,16 @@ static int mbind_range(struct mm_struct *mm, unsigned long start,
105507 err = vma_replace_policy(vma, new_pol);
105508 if (err)
105509 goto out;
105510+
105511+#ifdef CONFIG_PAX_SEGMEXEC
105512+ vma_m = pax_find_mirror_vma(vma);
105513+ if (vma_m) {
105514+ err = vma_replace_policy(vma_m, new_pol);
105515+ if (err)
105516+ goto out;
105517+ }
105518+#endif
105519+
105520 }
105521
105522 out:
105523@@ -1160,6 +1174,17 @@ static long do_mbind(unsigned long start, unsigned long len,
105524
105525 if (end < start)
105526 return -EINVAL;
105527+
105528+#ifdef CONFIG_PAX_SEGMEXEC
105529+ if (mm->pax_flags & MF_PAX_SEGMEXEC) {
105530+ if (end > SEGMEXEC_TASK_SIZE)
105531+ return -EINVAL;
105532+ } else
105533+#endif
105534+
105535+ if (end > TASK_SIZE)
105536+ return -EINVAL;
105537+
105538 if (end == start)
105539 return 0;
105540
105541@@ -1385,8 +1410,7 @@ SYSCALL_DEFINE4(migrate_pages, pid_t, pid, unsigned long, maxnode,
105542 */
105543 tcred = __task_cred(task);
105544 if (!uid_eq(cred->euid, tcred->suid) && !uid_eq(cred->euid, tcred->uid) &&
105545- !uid_eq(cred->uid, tcred->suid) && !uid_eq(cred->uid, tcred->uid) &&
105546- !capable(CAP_SYS_NICE)) {
105547+ !uid_eq(cred->uid, tcred->suid) && !capable(CAP_SYS_NICE)) {
105548 rcu_read_unlock();
105549 err = -EPERM;
105550 goto out_put;
105551@@ -1417,6 +1441,15 @@ SYSCALL_DEFINE4(migrate_pages, pid_t, pid, unsigned long, maxnode,
105552 goto out;
105553 }
105554
105555+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
105556+ if (mm != current->mm &&
105557+ (mm->pax_flags & MF_PAX_RANDMMAP || mm->pax_flags & MF_PAX_SEGMEXEC)) {
105558+ mmput(mm);
105559+ err = -EPERM;
105560+ goto out;
105561+ }
105562+#endif
105563+
105564 err = do_migrate_pages(mm, old, new,
105565 capable(CAP_SYS_NICE) ? MPOL_MF_MOVE_ALL : MPOL_MF_MOVE);
105566
105567diff --git a/mm/migrate.c b/mm/migrate.c
105568index 85e0426..be49beb 100644
105569--- a/mm/migrate.c
105570+++ b/mm/migrate.c
105571@@ -1472,8 +1472,7 @@ SYSCALL_DEFINE6(move_pages, pid_t, pid, unsigned long, nr_pages,
105572 */
105573 tcred = __task_cred(task);
105574 if (!uid_eq(cred->euid, tcred->suid) && !uid_eq(cred->euid, tcred->uid) &&
105575- !uid_eq(cred->uid, tcred->suid) && !uid_eq(cred->uid, tcred->uid) &&
105576- !capable(CAP_SYS_NICE)) {
105577+ !uid_eq(cred->uid, tcred->suid) && !capable(CAP_SYS_NICE)) {
105578 rcu_read_unlock();
105579 err = -EPERM;
105580 goto out;
105581diff --git a/mm/mlock.c b/mm/mlock.c
105582index 8a54cd2..92f1747 100644
105583--- a/mm/mlock.c
105584+++ b/mm/mlock.c
105585@@ -14,6 +14,7 @@
105586 #include <linux/pagevec.h>
105587 #include <linux/mempolicy.h>
105588 #include <linux/syscalls.h>
105589+#include <linux/security.h>
105590 #include <linux/sched.h>
105591 #include <linux/export.h>
105592 #include <linux/rmap.h>
105593@@ -613,7 +614,7 @@ static int do_mlock(unsigned long start, size_t len, int on)
105594 {
105595 unsigned long nstart, end, tmp;
105596 struct vm_area_struct * vma, * prev;
105597- int error;
105598+ int error = 0;
105599
105600 VM_BUG_ON(start & ~PAGE_MASK);
105601 VM_BUG_ON(len != PAGE_ALIGN(len));
105602@@ -622,6 +623,9 @@ static int do_mlock(unsigned long start, size_t len, int on)
105603 return -EINVAL;
105604 if (end == start)
105605 return 0;
105606+ if (end > TASK_SIZE)
105607+ return -EINVAL;
105608+
105609 vma = find_vma(current->mm, start);
105610 if (!vma || vma->vm_start > start)
105611 return -ENOMEM;
105612@@ -633,6 +637,11 @@ static int do_mlock(unsigned long start, size_t len, int on)
105613 for (nstart = start ; ; ) {
105614 vm_flags_t newflags;
105615
105616+#ifdef CONFIG_PAX_SEGMEXEC
105617+ if ((current->mm->pax_flags & MF_PAX_SEGMEXEC) && (vma->vm_start >= SEGMEXEC_TASK_SIZE))
105618+ break;
105619+#endif
105620+
105621 /* Here we know that vma->vm_start <= nstart < vma->vm_end. */
105622
105623 newflags = vma->vm_flags & ~VM_LOCKED;
105624@@ -746,6 +755,7 @@ SYSCALL_DEFINE2(mlock, unsigned long, start, size_t, len)
105625 locked += current->mm->locked_vm;
105626
105627 /* check against resource limits */
105628+ gr_learn_resource(current, RLIMIT_MEMLOCK, (current->mm->locked_vm << PAGE_SHIFT) + len, 1);
105629 if ((locked <= lock_limit) || capable(CAP_IPC_LOCK))
105630 error = do_mlock(start, len, 1);
105631
105632@@ -783,6 +793,11 @@ static int do_mlockall(int flags)
105633 for (vma = current->mm->mmap; vma ; vma = prev->vm_next) {
105634 vm_flags_t newflags;
105635
105636+#ifdef CONFIG_PAX_SEGMEXEC
105637+ if ((current->mm->pax_flags & MF_PAX_SEGMEXEC) && (vma->vm_start >= SEGMEXEC_TASK_SIZE))
105638+ break;
105639+#endif
105640+
105641 newflags = vma->vm_flags & ~VM_LOCKED;
105642 if (flags & MCL_CURRENT)
105643 newflags |= VM_LOCKED;
105644@@ -814,8 +829,10 @@ SYSCALL_DEFINE1(mlockall, int, flags)
105645 lock_limit >>= PAGE_SHIFT;
105646
105647 ret = -ENOMEM;
105648+
105649+ gr_learn_resource(current, RLIMIT_MEMLOCK, current->mm->total_vm << PAGE_SHIFT, 1);
105650+
105651 down_write(&current->mm->mmap_sem);
105652-
105653 if (!(flags & MCL_CURRENT) || (current->mm->total_vm <= lock_limit) ||
105654 capable(CAP_IPC_LOCK))
105655 ret = do_mlockall(flags);
105656diff --git a/mm/mm_init.c b/mm/mm_init.c
105657index 5f420f7..dd42fb1b 100644
105658--- a/mm/mm_init.c
105659+++ b/mm/mm_init.c
105660@@ -177,7 +177,7 @@ static int __meminit mm_compute_batch_notifier(struct notifier_block *self,
105661 return NOTIFY_OK;
105662 }
105663
105664-static struct notifier_block compute_batch_nb __meminitdata = {
105665+static struct notifier_block compute_batch_nb __meminitconst = {
105666 .notifier_call = mm_compute_batch_notifier,
105667 .priority = IPC_CALLBACK_PRI, /* use lowest priority */
105668 };
105669diff --git a/mm/mmap.c b/mm/mmap.c
105670index 9ec50a3..0476e2d 100644
105671--- a/mm/mmap.c
105672+++ b/mm/mmap.c
105673@@ -41,6 +41,7 @@
105674 #include <linux/notifier.h>
105675 #include <linux/memory.h>
105676 #include <linux/printk.h>
105677+#include <linux/random.h>
105678
105679 #include <asm/uaccess.h>
105680 #include <asm/cacheflush.h>
105681@@ -57,6 +58,16 @@
105682 #define arch_rebalance_pgtables(addr, len) (addr)
105683 #endif
105684
105685+static inline void verify_mm_writelocked(struct mm_struct *mm)
105686+{
105687+#if defined(CONFIG_DEBUG_VM) || defined(CONFIG_PAX)
105688+ if (unlikely(down_read_trylock(&mm->mmap_sem))) {
105689+ up_read(&mm->mmap_sem);
105690+ BUG();
105691+ }
105692+#endif
105693+}
105694+
105695 static void unmap_region(struct mm_struct *mm,
105696 struct vm_area_struct *vma, struct vm_area_struct *prev,
105697 unsigned long start, unsigned long end);
105698@@ -76,16 +87,25 @@ static void unmap_region(struct mm_struct *mm,
105699 * x: (no) no x: (no) yes x: (no) yes x: (yes) yes
105700 *
105701 */
105702-pgprot_t protection_map[16] = {
105703+pgprot_t protection_map[16] __read_only = {
105704 __P000, __P001, __P010, __P011, __P100, __P101, __P110, __P111,
105705 __S000, __S001, __S010, __S011, __S100, __S101, __S110, __S111
105706 };
105707
105708-pgprot_t vm_get_page_prot(unsigned long vm_flags)
105709+pgprot_t vm_get_page_prot(vm_flags_t vm_flags)
105710 {
105711- return __pgprot(pgprot_val(protection_map[vm_flags &
105712+ pgprot_t prot = __pgprot(pgprot_val(protection_map[vm_flags &
105713 (VM_READ|VM_WRITE|VM_EXEC|VM_SHARED)]) |
105714 pgprot_val(arch_vm_get_page_prot(vm_flags)));
105715+
105716+#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_X86_32)
105717+ if (!(__supported_pte_mask & _PAGE_NX) &&
105718+ (vm_flags & (VM_PAGEEXEC | VM_EXEC)) == VM_PAGEEXEC &&
105719+ (vm_flags & (VM_READ | VM_WRITE)))
105720+ prot = __pgprot(pte_val(pte_exprotect(__pte(pgprot_val(prot)))));
105721+#endif
105722+
105723+ return prot;
105724 }
105725 EXPORT_SYMBOL(vm_get_page_prot);
105726
105727@@ -114,6 +134,7 @@ unsigned long sysctl_overcommit_kbytes __read_mostly;
105728 int sysctl_max_map_count __read_mostly = DEFAULT_MAX_MAP_COUNT;
105729 unsigned long sysctl_user_reserve_kbytes __read_mostly = 1UL << 17; /* 128MB */
105730 unsigned long sysctl_admin_reserve_kbytes __read_mostly = 1UL << 13; /* 8MB */
105731+unsigned long sysctl_heap_stack_gap __read_mostly = 64*1024;
105732 /*
105733 * Make sure vm_committed_as in one cacheline and not cacheline shared with
105734 * other variables. It can be updated by several CPUs frequently.
105735@@ -271,6 +292,7 @@ static struct vm_area_struct *remove_vma(struct vm_area_struct *vma)
105736 struct vm_area_struct *next = vma->vm_next;
105737
105738 might_sleep();
105739+ BUG_ON(vma->vm_mirror);
105740 if (vma->vm_ops && vma->vm_ops->close)
105741 vma->vm_ops->close(vma);
105742 if (vma->vm_file)
105743@@ -284,6 +306,7 @@ static unsigned long do_brk(unsigned long addr, unsigned long len);
105744
105745 SYSCALL_DEFINE1(brk, unsigned long, brk)
105746 {
105747+ unsigned long rlim;
105748 unsigned long retval;
105749 unsigned long newbrk, oldbrk;
105750 struct mm_struct *mm = current->mm;
105751@@ -314,7 +337,13 @@ SYSCALL_DEFINE1(brk, unsigned long, brk)
105752 * segment grow beyond its set limit the in case where the limit is
105753 * not page aligned -Ram Gupta
105754 */
105755- if (check_data_rlimit(rlimit(RLIMIT_DATA), brk, mm->start_brk,
105756+ rlim = rlimit(RLIMIT_DATA);
105757+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
105758+ /* force a minimum 16MB brk heap on setuid/setgid binaries */
105759+ if (rlim < PAGE_SIZE && (get_dumpable(mm) != SUID_DUMP_USER) && gr_is_global_nonroot(current_uid()))
105760+ rlim = 4096 * PAGE_SIZE;
105761+#endif
105762+ if (check_data_rlimit(rlim, brk, mm->start_brk,
105763 mm->end_data, mm->start_data))
105764 goto out;
105765
105766@@ -967,6 +996,12 @@ static int
105767 can_vma_merge_before(struct vm_area_struct *vma, unsigned long vm_flags,
105768 struct anon_vma *anon_vma, struct file *file, pgoff_t vm_pgoff)
105769 {
105770+
105771+#ifdef CONFIG_PAX_SEGMEXEC
105772+ if ((vma->vm_mm->pax_flags & MF_PAX_SEGMEXEC) && vma->vm_start == SEGMEXEC_TASK_SIZE)
105773+ return 0;
105774+#endif
105775+
105776 if (is_mergeable_vma(vma, file, vm_flags) &&
105777 is_mergeable_anon_vma(anon_vma, vma->anon_vma, vma)) {
105778 if (vma->vm_pgoff == vm_pgoff)
105779@@ -986,6 +1021,12 @@ static int
105780 can_vma_merge_after(struct vm_area_struct *vma, unsigned long vm_flags,
105781 struct anon_vma *anon_vma, struct file *file, pgoff_t vm_pgoff)
105782 {
105783+
105784+#ifdef CONFIG_PAX_SEGMEXEC
105785+ if ((vma->vm_mm->pax_flags & MF_PAX_SEGMEXEC) && vma->vm_end == SEGMEXEC_TASK_SIZE)
105786+ return 0;
105787+#endif
105788+
105789 if (is_mergeable_vma(vma, file, vm_flags) &&
105790 is_mergeable_anon_vma(anon_vma, vma->anon_vma, vma)) {
105791 pgoff_t vm_pglen;
105792@@ -1035,6 +1076,13 @@ struct vm_area_struct *vma_merge(struct mm_struct *mm,
105793 struct vm_area_struct *area, *next;
105794 int err;
105795
105796+#ifdef CONFIG_PAX_SEGMEXEC
105797+ unsigned long addr_m = addr + SEGMEXEC_TASK_SIZE, end_m = end + SEGMEXEC_TASK_SIZE;
105798+ struct vm_area_struct *area_m = NULL, *next_m = NULL, *prev_m = NULL;
105799+
105800+ BUG_ON((mm->pax_flags & MF_PAX_SEGMEXEC) && SEGMEXEC_TASK_SIZE < end);
105801+#endif
105802+
105803 /*
105804 * We later require that vma->vm_flags == vm_flags,
105805 * so this tests vma->vm_flags & VM_SPECIAL, too.
105806@@ -1050,6 +1098,15 @@ struct vm_area_struct *vma_merge(struct mm_struct *mm,
105807 if (next && next->vm_end == end) /* cases 6, 7, 8 */
105808 next = next->vm_next;
105809
105810+#ifdef CONFIG_PAX_SEGMEXEC
105811+ if (prev)
105812+ prev_m = pax_find_mirror_vma(prev);
105813+ if (area)
105814+ area_m = pax_find_mirror_vma(area);
105815+ if (next)
105816+ next_m = pax_find_mirror_vma(next);
105817+#endif
105818+
105819 /*
105820 * Can it merge with the predecessor?
105821 */
105822@@ -1069,9 +1126,24 @@ struct vm_area_struct *vma_merge(struct mm_struct *mm,
105823 /* cases 1, 6 */
105824 err = vma_adjust(prev, prev->vm_start,
105825 next->vm_end, prev->vm_pgoff, NULL);
105826- } else /* cases 2, 5, 7 */
105827+
105828+#ifdef CONFIG_PAX_SEGMEXEC
105829+ if (!err && prev_m)
105830+ err = vma_adjust(prev_m, prev_m->vm_start,
105831+ next_m->vm_end, prev_m->vm_pgoff, NULL);
105832+#endif
105833+
105834+ } else { /* cases 2, 5, 7 */
105835 err = vma_adjust(prev, prev->vm_start,
105836 end, prev->vm_pgoff, NULL);
105837+
105838+#ifdef CONFIG_PAX_SEGMEXEC
105839+ if (!err && prev_m)
105840+ err = vma_adjust(prev_m, prev_m->vm_start,
105841+ end_m, prev_m->vm_pgoff, NULL);
105842+#endif
105843+
105844+ }
105845 if (err)
105846 return NULL;
105847 khugepaged_enter_vma_merge(prev, vm_flags);
105848@@ -1085,12 +1157,27 @@ struct vm_area_struct *vma_merge(struct mm_struct *mm,
105849 mpol_equal(policy, vma_policy(next)) &&
105850 can_vma_merge_before(next, vm_flags,
105851 anon_vma, file, pgoff+pglen)) {
105852- if (prev && addr < prev->vm_end) /* case 4 */
105853+ if (prev && addr < prev->vm_end) { /* case 4 */
105854 err = vma_adjust(prev, prev->vm_start,
105855 addr, prev->vm_pgoff, NULL);
105856- else /* cases 3, 8 */
105857+
105858+#ifdef CONFIG_PAX_SEGMEXEC
105859+ if (!err && prev_m)
105860+ err = vma_adjust(prev_m, prev_m->vm_start,
105861+ addr_m, prev_m->vm_pgoff, NULL);
105862+#endif
105863+
105864+ } else { /* cases 3, 8 */
105865 err = vma_adjust(area, addr, next->vm_end,
105866 next->vm_pgoff - pglen, NULL);
105867+
105868+#ifdef CONFIG_PAX_SEGMEXEC
105869+ if (!err && area_m)
105870+ err = vma_adjust(area_m, addr_m, next_m->vm_end,
105871+ next_m->vm_pgoff - pglen, NULL);
105872+#endif
105873+
105874+ }
105875 if (err)
105876 return NULL;
105877 khugepaged_enter_vma_merge(area, vm_flags);
105878@@ -1199,8 +1286,10 @@ none:
105879 void vm_stat_account(struct mm_struct *mm, unsigned long flags,
105880 struct file *file, long pages)
105881 {
105882- const unsigned long stack_flags
105883- = VM_STACK_FLAGS & (VM_GROWSUP|VM_GROWSDOWN);
105884+
105885+#ifdef CONFIG_PAX_RANDMMAP
105886+ if (!(mm->pax_flags & MF_PAX_RANDMMAP) || (flags & (VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)))
105887+#endif
105888
105889 mm->total_vm += pages;
105890
105891@@ -1208,7 +1297,7 @@ void vm_stat_account(struct mm_struct *mm, unsigned long flags,
105892 mm->shared_vm += pages;
105893 if ((flags & (VM_EXEC|VM_WRITE)) == VM_EXEC)
105894 mm->exec_vm += pages;
105895- } else if (flags & stack_flags)
105896+ } else if (flags & (VM_GROWSUP|VM_GROWSDOWN))
105897 mm->stack_vm += pages;
105898 }
105899 #endif /* CONFIG_PROC_FS */
105900@@ -1238,6 +1327,7 @@ static inline int mlock_future_check(struct mm_struct *mm,
105901 locked += mm->locked_vm;
105902 lock_limit = rlimit(RLIMIT_MEMLOCK);
105903 lock_limit >>= PAGE_SHIFT;
105904+ gr_learn_resource(current, RLIMIT_MEMLOCK, locked << PAGE_SHIFT, 1);
105905 if (locked > lock_limit && !capable(CAP_IPC_LOCK))
105906 return -EAGAIN;
105907 }
105908@@ -1264,7 +1354,7 @@ unsigned long do_mmap_pgoff(struct file *file, unsigned long addr,
105909 * (the exception is when the underlying filesystem is noexec
105910 * mounted, in which case we dont add PROT_EXEC.)
105911 */
105912- if ((prot & PROT_READ) && (current->personality & READ_IMPLIES_EXEC))
105913+ if ((prot & (PROT_READ | PROT_WRITE)) && (current->personality & READ_IMPLIES_EXEC))
105914 if (!(file && (file->f_path.mnt->mnt_flags & MNT_NOEXEC)))
105915 prot |= PROT_EXEC;
105916
105917@@ -1290,7 +1380,7 @@ unsigned long do_mmap_pgoff(struct file *file, unsigned long addr,
105918 /* Obtain the address to map to. we verify (or select) it and ensure
105919 * that it represents a valid section of the address space.
105920 */
105921- addr = get_unmapped_area(file, addr, len, pgoff, flags);
105922+ addr = get_unmapped_area(file, addr, len, pgoff, flags | ((prot & PROT_EXEC) ? MAP_EXECUTABLE : 0));
105923 if (addr & ~PAGE_MASK)
105924 return addr;
105925
105926@@ -1301,6 +1391,43 @@ unsigned long do_mmap_pgoff(struct file *file, unsigned long addr,
105927 vm_flags = calc_vm_prot_bits(prot) | calc_vm_flag_bits(flags) |
105928 mm->def_flags | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC;
105929
105930+#ifdef CONFIG_PAX_MPROTECT
105931+ if (mm->pax_flags & MF_PAX_MPROTECT) {
105932+
105933+#ifdef CONFIG_GRKERNSEC_RWXMAP_LOG
105934+ if (file && !pgoff && (vm_flags & VM_EXEC) && mm->binfmt &&
105935+ mm->binfmt->handle_mmap)
105936+ mm->binfmt->handle_mmap(file);
105937+#endif
105938+
105939+#ifndef CONFIG_PAX_MPROTECT_COMPAT
105940+ if ((vm_flags & (VM_WRITE | VM_EXEC)) == (VM_WRITE | VM_EXEC)) {
105941+ gr_log_rwxmmap(file);
105942+
105943+#ifdef CONFIG_PAX_EMUPLT
105944+ vm_flags &= ~VM_EXEC;
105945+#else
105946+ return -EPERM;
105947+#endif
105948+
105949+ }
105950+
105951+ if (!(vm_flags & VM_EXEC))
105952+ vm_flags &= ~VM_MAYEXEC;
105953+#else
105954+ if ((vm_flags & (VM_WRITE | VM_EXEC)) != VM_EXEC)
105955+ vm_flags &= ~(VM_EXEC | VM_MAYEXEC);
105956+#endif
105957+ else
105958+ vm_flags &= ~VM_MAYWRITE;
105959+ }
105960+#endif
105961+
105962+#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_X86_32)
105963+ if ((mm->pax_flags & MF_PAX_PAGEEXEC) && file)
105964+ vm_flags &= ~VM_PAGEEXEC;
105965+#endif
105966+
105967 if (flags & MAP_LOCKED)
105968 if (!can_do_mlock())
105969 return -EPERM;
105970@@ -1388,6 +1515,9 @@ unsigned long do_mmap_pgoff(struct file *file, unsigned long addr,
105971 vm_flags |= VM_NORESERVE;
105972 }
105973
105974+ if (!gr_acl_handle_mmap(file, prot))
105975+ return -EACCES;
105976+
105977 addr = mmap_region(file, addr, len, vm_flags, pgoff);
105978 if (!IS_ERR_VALUE(addr) &&
105979 ((vm_flags & VM_LOCKED) ||
105980@@ -1481,7 +1611,7 @@ int vma_wants_writenotify(struct vm_area_struct *vma)
105981 vm_flags_t vm_flags = vma->vm_flags;
105982
105983 /* If it was private or non-writable, the write bit is already clear */
105984- if ((vm_flags & (VM_WRITE|VM_SHARED)) != ((VM_WRITE|VM_SHARED)))
105985+ if ((vm_flags & (VM_WRITE|VM_SHARED)) != (VM_WRITE|VM_SHARED))
105986 return 0;
105987
105988 /* The backer wishes to know when pages are first written to? */
105989@@ -1532,7 +1662,22 @@ unsigned long mmap_region(struct file *file, unsigned long addr,
105990 struct rb_node **rb_link, *rb_parent;
105991 unsigned long charged = 0;
105992
105993+#ifdef CONFIG_PAX_SEGMEXEC
105994+ struct vm_area_struct *vma_m = NULL;
105995+#endif
105996+
105997+ /*
105998+ * mm->mmap_sem is required to protect against another thread
105999+ * changing the mappings in case we sleep.
106000+ */
106001+ verify_mm_writelocked(mm);
106002+
106003 /* Check against address space limit. */
106004+
106005+#ifdef CONFIG_PAX_RANDMMAP
106006+ if (!(mm->pax_flags & MF_PAX_RANDMMAP) || (vm_flags & (VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)))
106007+#endif
106008+
106009 if (!may_expand_vm(mm, len >> PAGE_SHIFT)) {
106010 unsigned long nr_pages;
106011
106012@@ -1551,11 +1696,10 @@ unsigned long mmap_region(struct file *file, unsigned long addr,
106013
106014 /* Clear old maps */
106015 error = -ENOMEM;
106016-munmap_back:
106017 if (find_vma_links(mm, addr, addr + len, &prev, &rb_link, &rb_parent)) {
106018 if (do_munmap(mm, addr, len))
106019 return -ENOMEM;
106020- goto munmap_back;
106021+ BUG_ON(find_vma_links(mm, addr, addr + len, &prev, &rb_link, &rb_parent));
106022 }
106023
106024 /*
106025@@ -1586,6 +1730,16 @@ munmap_back:
106026 goto unacct_error;
106027 }
106028
106029+#ifdef CONFIG_PAX_SEGMEXEC
106030+ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && (vm_flags & VM_EXEC)) {
106031+ vma_m = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
106032+ if (!vma_m) {
106033+ error = -ENOMEM;
106034+ goto free_vma;
106035+ }
106036+ }
106037+#endif
106038+
106039 vma->vm_mm = mm;
106040 vma->vm_start = addr;
106041 vma->vm_end = addr + len;
106042@@ -1616,6 +1770,13 @@ munmap_back:
106043 if (error)
106044 goto unmap_and_free_vma;
106045
106046+#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_X86_32)
106047+ if ((mm->pax_flags & MF_PAX_PAGEEXEC) && !(vma->vm_flags & VM_SPECIAL)) {
106048+ vma->vm_flags |= VM_PAGEEXEC;
106049+ vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
106050+ }
106051+#endif
106052+
106053 /* Can addr have changed??
106054 *
106055 * Answer: Yes, several device drivers can do it in their
106056@@ -1634,6 +1795,12 @@ munmap_back:
106057 }
106058
106059 vma_link(mm, vma, prev, rb_link, rb_parent);
106060+
106061+#ifdef CONFIG_PAX_SEGMEXEC
106062+ if (vma_m)
106063+ BUG_ON(pax_mirror_vma(vma_m, vma));
106064+#endif
106065+
106066 /* Once vma denies write, undo our temporary denial count */
106067 if (file) {
106068 if (vm_flags & VM_SHARED)
106069@@ -1646,6 +1813,7 @@ out:
106070 perf_event_mmap(vma);
106071
106072 vm_stat_account(mm, vm_flags, file, len >> PAGE_SHIFT);
106073+ track_exec_limit(mm, addr, addr + len, vm_flags);
106074 if (vm_flags & VM_LOCKED) {
106075 if (!((vm_flags & VM_SPECIAL) || is_vm_hugetlb_page(vma) ||
106076 vma == get_gate_vma(current->mm)))
106077@@ -1683,6 +1851,12 @@ allow_write_and_free_vma:
106078 if (vm_flags & VM_DENYWRITE)
106079 allow_write_access(file);
106080 free_vma:
106081+
106082+#ifdef CONFIG_PAX_SEGMEXEC
106083+ if (vma_m)
106084+ kmem_cache_free(vm_area_cachep, vma_m);
106085+#endif
106086+
106087 kmem_cache_free(vm_area_cachep, vma);
106088 unacct_error:
106089 if (charged)
106090@@ -1690,7 +1864,63 @@ unacct_error:
106091 return error;
106092 }
106093
106094-unsigned long unmapped_area(struct vm_unmapped_area_info *info)
106095+#ifdef CONFIG_GRKERNSEC_RAND_THREADSTACK
106096+unsigned long gr_rand_threadstack_offset(const struct mm_struct *mm, const struct file *filp, unsigned long flags)
106097+{
106098+ if ((mm->pax_flags & MF_PAX_RANDMMAP) && !filp && (flags & MAP_STACK))
106099+ return ((prandom_u32() & 0xFF) + 1) << PAGE_SHIFT;
106100+
106101+ return 0;
106102+}
106103+#endif
106104+
106105+bool check_heap_stack_gap(const struct vm_area_struct *vma, unsigned long addr, unsigned long len, unsigned long offset)
106106+{
106107+ if (!vma) {
106108+#ifdef CONFIG_STACK_GROWSUP
106109+ if (addr > sysctl_heap_stack_gap)
106110+ vma = find_vma(current->mm, addr - sysctl_heap_stack_gap);
106111+ else
106112+ vma = find_vma(current->mm, 0);
106113+ if (vma && (vma->vm_flags & VM_GROWSUP))
106114+ return false;
106115+#endif
106116+ return true;
106117+ }
106118+
106119+ if (addr + len > vma->vm_start)
106120+ return false;
106121+
106122+ if (vma->vm_flags & VM_GROWSDOWN)
106123+ return sysctl_heap_stack_gap <= vma->vm_start - addr - len;
106124+#ifdef CONFIG_STACK_GROWSUP
106125+ else if (vma->vm_prev && (vma->vm_prev->vm_flags & VM_GROWSUP))
106126+ return addr - vma->vm_prev->vm_end >= sysctl_heap_stack_gap;
106127+#endif
106128+ else if (offset)
106129+ return offset <= vma->vm_start - addr - len;
106130+
106131+ return true;
106132+}
106133+
106134+unsigned long skip_heap_stack_gap(const struct vm_area_struct *vma, unsigned long len, unsigned long offset)
106135+{
106136+ if (vma->vm_start < len)
106137+ return -ENOMEM;
106138+
106139+ if (!(vma->vm_flags & VM_GROWSDOWN)) {
106140+ if (offset <= vma->vm_start - len)
106141+ return vma->vm_start - len - offset;
106142+ else
106143+ return -ENOMEM;
106144+ }
106145+
106146+ if (sysctl_heap_stack_gap <= vma->vm_start - len)
106147+ return vma->vm_start - len - sysctl_heap_stack_gap;
106148+ return -ENOMEM;
106149+}
106150+
106151+unsigned long unmapped_area(const struct vm_unmapped_area_info *info)
106152 {
106153 /*
106154 * We implement the search by looking for an rbtree node that
106155@@ -1738,11 +1968,29 @@ unsigned long unmapped_area(struct vm_unmapped_area_info *info)
106156 }
106157 }
106158
106159- gap_start = vma->vm_prev ? vma->vm_prev->vm_end : 0;
106160+ gap_start = vma->vm_prev ? vma->vm_prev->vm_end: 0;
106161 check_current:
106162 /* Check if current node has a suitable gap */
106163 if (gap_start > high_limit)
106164 return -ENOMEM;
106165+
106166+ if (gap_end - gap_start > info->threadstack_offset)
106167+ gap_start += info->threadstack_offset;
106168+ else
106169+ gap_start = gap_end;
106170+
106171+ if (vma->vm_prev && (vma->vm_prev->vm_flags & VM_GROWSUP)) {
106172+ if (gap_end - gap_start > sysctl_heap_stack_gap)
106173+ gap_start += sysctl_heap_stack_gap;
106174+ else
106175+ gap_start = gap_end;
106176+ }
106177+ if (vma->vm_flags & VM_GROWSDOWN) {
106178+ if (gap_end - gap_start > sysctl_heap_stack_gap)
106179+ gap_end -= sysctl_heap_stack_gap;
106180+ else
106181+ gap_end = gap_start;
106182+ }
106183 if (gap_end >= low_limit && gap_end - gap_start >= length)
106184 goto found;
106185
106186@@ -1792,7 +2040,7 @@ found:
106187 return gap_start;
106188 }
106189
106190-unsigned long unmapped_area_topdown(struct vm_unmapped_area_info *info)
106191+unsigned long unmapped_area_topdown(const struct vm_unmapped_area_info *info)
106192 {
106193 struct mm_struct *mm = current->mm;
106194 struct vm_area_struct *vma;
106195@@ -1846,6 +2094,24 @@ check_current:
106196 gap_end = vma->vm_start;
106197 if (gap_end < low_limit)
106198 return -ENOMEM;
106199+
106200+ if (gap_end - gap_start > info->threadstack_offset)
106201+ gap_end -= info->threadstack_offset;
106202+ else
106203+ gap_end = gap_start;
106204+
106205+ if (vma->vm_prev && (vma->vm_prev->vm_flags & VM_GROWSUP)) {
106206+ if (gap_end - gap_start > sysctl_heap_stack_gap)
106207+ gap_start += sysctl_heap_stack_gap;
106208+ else
106209+ gap_start = gap_end;
106210+ }
106211+ if (vma->vm_flags & VM_GROWSDOWN) {
106212+ if (gap_end - gap_start > sysctl_heap_stack_gap)
106213+ gap_end -= sysctl_heap_stack_gap;
106214+ else
106215+ gap_end = gap_start;
106216+ }
106217 if (gap_start <= high_limit && gap_end - gap_start >= length)
106218 goto found;
106219
106220@@ -1909,6 +2175,7 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
106221 struct mm_struct *mm = current->mm;
106222 struct vm_area_struct *vma;
106223 struct vm_unmapped_area_info info;
106224+ unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
106225
106226 if (len > TASK_SIZE - mmap_min_addr)
106227 return -ENOMEM;
106228@@ -1916,11 +2183,15 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
106229 if (flags & MAP_FIXED)
106230 return addr;
106231
106232+#ifdef CONFIG_PAX_RANDMMAP
106233+ if (!(mm->pax_flags & MF_PAX_RANDMMAP))
106234+#endif
106235+
106236 if (addr) {
106237 addr = PAGE_ALIGN(addr);
106238 vma = find_vma(mm, addr);
106239 if (TASK_SIZE - len >= addr && addr >= mmap_min_addr &&
106240- (!vma || addr + len <= vma->vm_start))
106241+ check_heap_stack_gap(vma, addr, len, offset))
106242 return addr;
106243 }
106244
106245@@ -1929,6 +2200,7 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
106246 info.low_limit = mm->mmap_base;
106247 info.high_limit = TASK_SIZE;
106248 info.align_mask = 0;
106249+ info.threadstack_offset = offset;
106250 return vm_unmapped_area(&info);
106251 }
106252 #endif
106253@@ -1947,6 +2219,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
106254 struct mm_struct *mm = current->mm;
106255 unsigned long addr = addr0;
106256 struct vm_unmapped_area_info info;
106257+ unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
106258
106259 /* requested length too big for entire address space */
106260 if (len > TASK_SIZE - mmap_min_addr)
106261@@ -1955,12 +2228,16 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
106262 if (flags & MAP_FIXED)
106263 return addr;
106264
106265+#ifdef CONFIG_PAX_RANDMMAP
106266+ if (!(mm->pax_flags & MF_PAX_RANDMMAP))
106267+#endif
106268+
106269 /* requesting a specific address */
106270 if (addr) {
106271 addr = PAGE_ALIGN(addr);
106272 vma = find_vma(mm, addr);
106273 if (TASK_SIZE - len >= addr && addr >= mmap_min_addr &&
106274- (!vma || addr + len <= vma->vm_start))
106275+ check_heap_stack_gap(vma, addr, len, offset))
106276 return addr;
106277 }
106278
106279@@ -1969,6 +2246,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
106280 info.low_limit = max(PAGE_SIZE, mmap_min_addr);
106281 info.high_limit = mm->mmap_base;
106282 info.align_mask = 0;
106283+ info.threadstack_offset = offset;
106284 addr = vm_unmapped_area(&info);
106285
106286 /*
106287@@ -1981,6 +2259,12 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
106288 VM_BUG_ON(addr != -ENOMEM);
106289 info.flags = 0;
106290 info.low_limit = TASK_UNMAPPED_BASE;
106291+
106292+#ifdef CONFIG_PAX_RANDMMAP
106293+ if (mm->pax_flags & MF_PAX_RANDMMAP)
106294+ info.low_limit += mm->delta_mmap;
106295+#endif
106296+
106297 info.high_limit = TASK_SIZE;
106298 addr = vm_unmapped_area(&info);
106299 }
106300@@ -2081,6 +2365,28 @@ find_vma_prev(struct mm_struct *mm, unsigned long addr,
106301 return vma;
106302 }
106303
106304+#ifdef CONFIG_PAX_SEGMEXEC
106305+struct vm_area_struct *pax_find_mirror_vma(struct vm_area_struct *vma)
106306+{
106307+ struct vm_area_struct *vma_m;
106308+
106309+ BUG_ON(!vma || vma->vm_start >= vma->vm_end);
106310+ if (!(vma->vm_mm->pax_flags & MF_PAX_SEGMEXEC) || !(vma->vm_flags & VM_EXEC)) {
106311+ BUG_ON(vma->vm_mirror);
106312+ return NULL;
106313+ }
106314+ BUG_ON(vma->vm_start < SEGMEXEC_TASK_SIZE && SEGMEXEC_TASK_SIZE < vma->vm_end);
106315+ vma_m = vma->vm_mirror;
106316+ BUG_ON(!vma_m || vma_m->vm_mirror != vma);
106317+ BUG_ON(vma->vm_file != vma_m->vm_file);
106318+ BUG_ON(vma->vm_end - vma->vm_start != vma_m->vm_end - vma_m->vm_start);
106319+ BUG_ON(vma->vm_pgoff != vma_m->vm_pgoff);
106320+ BUG_ON(vma->anon_vma != vma_m->anon_vma && vma->anon_vma->root != vma_m->anon_vma->root);
106321+ BUG_ON((vma->vm_flags ^ vma_m->vm_flags) & ~(VM_WRITE | VM_MAYWRITE | VM_ACCOUNT | VM_LOCKED));
106322+ return vma_m;
106323+}
106324+#endif
106325+
106326 /*
106327 * Verify that the stack growth is acceptable and
106328 * update accounting. This is shared with both the
106329@@ -2098,8 +2404,7 @@ static int acct_stack_growth(struct vm_area_struct *vma, unsigned long size, uns
106330
106331 /* Stack limit test */
106332 actual_size = size;
106333- if (size && (vma->vm_flags & (VM_GROWSUP | VM_GROWSDOWN)))
106334- actual_size -= PAGE_SIZE;
106335+ gr_learn_resource(current, RLIMIT_STACK, actual_size, 1);
106336 if (actual_size > ACCESS_ONCE(rlim[RLIMIT_STACK].rlim_cur))
106337 return -ENOMEM;
106338
106339@@ -2110,6 +2415,7 @@ static int acct_stack_growth(struct vm_area_struct *vma, unsigned long size, uns
106340 locked = mm->locked_vm + grow;
106341 limit = ACCESS_ONCE(rlim[RLIMIT_MEMLOCK].rlim_cur);
106342 limit >>= PAGE_SHIFT;
106343+ gr_learn_resource(current, RLIMIT_MEMLOCK, locked << PAGE_SHIFT, 1);
106344 if (locked > limit && !capable(CAP_IPC_LOCK))
106345 return -ENOMEM;
106346 }
106347@@ -2139,37 +2445,48 @@ static int acct_stack_growth(struct vm_area_struct *vma, unsigned long size, uns
106348 * PA-RISC uses this for its stack; IA64 for its Register Backing Store.
106349 * vma is the last one with address > vma->vm_end. Have to extend vma.
106350 */
106351+#ifndef CONFIG_IA64
106352+static
106353+#endif
106354 int expand_upwards(struct vm_area_struct *vma, unsigned long address)
106355 {
106356 int error;
106357+ bool locknext;
106358
106359 if (!(vma->vm_flags & VM_GROWSUP))
106360 return -EFAULT;
106361
106362+ /* Also guard against wrapping around to address 0. */
106363+ if (address < PAGE_ALIGN(address+1))
106364+ address = PAGE_ALIGN(address+1);
106365+ else
106366+ return -ENOMEM;
106367+
106368 /*
106369 * We must make sure the anon_vma is allocated
106370 * so that the anon_vma locking is not a noop.
106371 */
106372 if (unlikely(anon_vma_prepare(vma)))
106373 return -ENOMEM;
106374+ locknext = vma->vm_next && (vma->vm_next->vm_flags & VM_GROWSDOWN);
106375+ if (locknext && anon_vma_prepare(vma->vm_next))
106376+ return -ENOMEM;
106377 vma_lock_anon_vma(vma);
106378+ if (locknext)
106379+ vma_lock_anon_vma(vma->vm_next);
106380
106381 /*
106382 * vma->vm_start/vm_end cannot change under us because the caller
106383 * is required to hold the mmap_sem in read mode. We need the
106384- * anon_vma lock to serialize against concurrent expand_stacks.
106385- * Also guard against wrapping around to address 0.
106386+ * anon_vma locks to serialize against concurrent expand_stacks
106387+ * and expand_upwards.
106388 */
106389- if (address < PAGE_ALIGN(address+4))
106390- address = PAGE_ALIGN(address+4);
106391- else {
106392- vma_unlock_anon_vma(vma);
106393- return -ENOMEM;
106394- }
106395 error = 0;
106396
106397 /* Somebody else might have raced and expanded it already */
106398- if (address > vma->vm_end) {
106399+ 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)
106400+ error = -ENOMEM;
106401+ else if (address > vma->vm_end && (!locknext || vma->vm_next->vm_start >= address)) {
106402 unsigned long size, grow;
106403
106404 size = address - vma->vm_start;
106405@@ -2204,6 +2521,8 @@ int expand_upwards(struct vm_area_struct *vma, unsigned long address)
106406 }
106407 }
106408 }
106409+ if (locknext)
106410+ vma_unlock_anon_vma(vma->vm_next);
106411 vma_unlock_anon_vma(vma);
106412 khugepaged_enter_vma_merge(vma, vma->vm_flags);
106413 validate_mm(vma->vm_mm);
106414@@ -2218,6 +2537,8 @@ int expand_downwards(struct vm_area_struct *vma,
106415 unsigned long address)
106416 {
106417 int error;
106418+ bool lockprev = false;
106419+ struct vm_area_struct *prev;
106420
106421 /*
106422 * We must make sure the anon_vma is allocated
106423@@ -2231,6 +2552,15 @@ int expand_downwards(struct vm_area_struct *vma,
106424 if (error)
106425 return error;
106426
106427+ prev = vma->vm_prev;
106428+#if defined(CONFIG_STACK_GROWSUP) || defined(CONFIG_IA64)
106429+ lockprev = prev && (prev->vm_flags & VM_GROWSUP);
106430+#endif
106431+ if (lockprev && anon_vma_prepare(prev))
106432+ return -ENOMEM;
106433+ if (lockprev)
106434+ vma_lock_anon_vma(prev);
106435+
106436 vma_lock_anon_vma(vma);
106437
106438 /*
106439@@ -2240,9 +2570,17 @@ int expand_downwards(struct vm_area_struct *vma,
106440 */
106441
106442 /* Somebody else might have raced and expanded it already */
106443- if (address < vma->vm_start) {
106444+ if (prev && (prev->vm_flags & (VM_READ | VM_WRITE | VM_EXEC)) && address - prev->vm_end < sysctl_heap_stack_gap)
106445+ error = -ENOMEM;
106446+ else if (address < vma->vm_start && (!lockprev || prev->vm_end <= address)) {
106447 unsigned long size, grow;
106448
106449+#ifdef CONFIG_PAX_SEGMEXEC
106450+ struct vm_area_struct *vma_m;
106451+
106452+ vma_m = pax_find_mirror_vma(vma);
106453+#endif
106454+
106455 size = vma->vm_end - address;
106456 grow = (vma->vm_start - address) >> PAGE_SHIFT;
106457
106458@@ -2267,13 +2605,27 @@ int expand_downwards(struct vm_area_struct *vma,
106459 vma->vm_pgoff -= grow;
106460 anon_vma_interval_tree_post_update_vma(vma);
106461 vma_gap_update(vma);
106462+
106463+#ifdef CONFIG_PAX_SEGMEXEC
106464+ if (vma_m) {
106465+ anon_vma_interval_tree_pre_update_vma(vma_m);
106466+ vma_m->vm_start -= grow << PAGE_SHIFT;
106467+ vma_m->vm_pgoff -= grow;
106468+ anon_vma_interval_tree_post_update_vma(vma_m);
106469+ vma_gap_update(vma_m);
106470+ }
106471+#endif
106472+
106473 spin_unlock(&vma->vm_mm->page_table_lock);
106474
106475+ track_exec_limit(vma->vm_mm, vma->vm_start, vma->vm_end, vma->vm_flags);
106476 perf_event_mmap(vma);
106477 }
106478 }
106479 }
106480 vma_unlock_anon_vma(vma);
106481+ if (lockprev)
106482+ vma_unlock_anon_vma(prev);
106483 khugepaged_enter_vma_merge(vma, vma->vm_flags);
106484 validate_mm(vma->vm_mm);
106485 return error;
106486@@ -2373,6 +2725,13 @@ static void remove_vma_list(struct mm_struct *mm, struct vm_area_struct *vma)
106487 do {
106488 long nrpages = vma_pages(vma);
106489
106490+#ifdef CONFIG_PAX_SEGMEXEC
106491+ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && (vma->vm_start >= SEGMEXEC_TASK_SIZE)) {
106492+ vma = remove_vma(vma);
106493+ continue;
106494+ }
106495+#endif
106496+
106497 if (vma->vm_flags & VM_ACCOUNT)
106498 nr_accounted += nrpages;
106499 vm_stat_account(mm, vma->vm_flags, vma->vm_file, -nrpages);
106500@@ -2417,6 +2776,16 @@ detach_vmas_to_be_unmapped(struct mm_struct *mm, struct vm_area_struct *vma,
106501 insertion_point = (prev ? &prev->vm_next : &mm->mmap);
106502 vma->vm_prev = NULL;
106503 do {
106504+
106505+#ifdef CONFIG_PAX_SEGMEXEC
106506+ if (vma->vm_mirror) {
106507+ BUG_ON(!vma->vm_mirror->vm_mirror || vma->vm_mirror->vm_mirror != vma);
106508+ vma->vm_mirror->vm_mirror = NULL;
106509+ vma->vm_mirror->vm_flags &= ~VM_EXEC;
106510+ vma->vm_mirror = NULL;
106511+ }
106512+#endif
106513+
106514 vma_rb_erase(vma, &mm->mm_rb);
106515 mm->map_count--;
106516 tail_vma = vma;
106517@@ -2444,14 +2813,33 @@ static int __split_vma(struct mm_struct *mm, struct vm_area_struct *vma,
106518 struct vm_area_struct *new;
106519 int err = -ENOMEM;
106520
106521+#ifdef CONFIG_PAX_SEGMEXEC
106522+ struct vm_area_struct *vma_m, *new_m = NULL;
106523+ unsigned long addr_m = addr + SEGMEXEC_TASK_SIZE;
106524+#endif
106525+
106526 if (is_vm_hugetlb_page(vma) && (addr &
106527 ~(huge_page_mask(hstate_vma(vma)))))
106528 return -EINVAL;
106529
106530+#ifdef CONFIG_PAX_SEGMEXEC
106531+ vma_m = pax_find_mirror_vma(vma);
106532+#endif
106533+
106534 new = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL);
106535 if (!new)
106536 goto out_err;
106537
106538+#ifdef CONFIG_PAX_SEGMEXEC
106539+ if (vma_m) {
106540+ new_m = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL);
106541+ if (!new_m) {
106542+ kmem_cache_free(vm_area_cachep, new);
106543+ goto out_err;
106544+ }
106545+ }
106546+#endif
106547+
106548 /* most fields are the same, copy all, and then fixup */
106549 *new = *vma;
106550
106551@@ -2464,6 +2852,22 @@ static int __split_vma(struct mm_struct *mm, struct vm_area_struct *vma,
106552 new->vm_pgoff += ((addr - vma->vm_start) >> PAGE_SHIFT);
106553 }
106554
106555+#ifdef CONFIG_PAX_SEGMEXEC
106556+ if (vma_m) {
106557+ *new_m = *vma_m;
106558+ INIT_LIST_HEAD(&new_m->anon_vma_chain);
106559+ new_m->vm_mirror = new;
106560+ new->vm_mirror = new_m;
106561+
106562+ if (new_below)
106563+ new_m->vm_end = addr_m;
106564+ else {
106565+ new_m->vm_start = addr_m;
106566+ new_m->vm_pgoff += ((addr_m - vma_m->vm_start) >> PAGE_SHIFT);
106567+ }
106568+ }
106569+#endif
106570+
106571 err = vma_dup_policy(vma, new);
106572 if (err)
106573 goto out_free_vma;
106574@@ -2484,6 +2888,38 @@ static int __split_vma(struct mm_struct *mm, struct vm_area_struct *vma,
106575 else
106576 err = vma_adjust(vma, vma->vm_start, addr, vma->vm_pgoff, new);
106577
106578+#ifdef CONFIG_PAX_SEGMEXEC
106579+ if (!err && vma_m) {
106580+ struct mempolicy *pol = vma_policy(new);
106581+
106582+ if (anon_vma_clone(new_m, vma_m))
106583+ goto out_free_mpol;
106584+
106585+ mpol_get(pol);
106586+ set_vma_policy(new_m, pol);
106587+
106588+ if (new_m->vm_file)
106589+ get_file(new_m->vm_file);
106590+
106591+ if (new_m->vm_ops && new_m->vm_ops->open)
106592+ new_m->vm_ops->open(new_m);
106593+
106594+ if (new_below)
106595+ err = vma_adjust(vma_m, addr_m, vma_m->vm_end, vma_m->vm_pgoff +
106596+ ((addr_m - new_m->vm_start) >> PAGE_SHIFT), new_m);
106597+ else
106598+ err = vma_adjust(vma_m, vma_m->vm_start, addr_m, vma_m->vm_pgoff, new_m);
106599+
106600+ if (err) {
106601+ if (new_m->vm_ops && new_m->vm_ops->close)
106602+ new_m->vm_ops->close(new_m);
106603+ if (new_m->vm_file)
106604+ fput(new_m->vm_file);
106605+ mpol_put(pol);
106606+ }
106607+ }
106608+#endif
106609+
106610 /* Success. */
106611 if (!err)
106612 return 0;
106613@@ -2493,10 +2929,18 @@ static int __split_vma(struct mm_struct *mm, struct vm_area_struct *vma,
106614 new->vm_ops->close(new);
106615 if (new->vm_file)
106616 fput(new->vm_file);
106617- unlink_anon_vmas(new);
106618 out_free_mpol:
106619 mpol_put(vma_policy(new));
106620 out_free_vma:
106621+
106622+#ifdef CONFIG_PAX_SEGMEXEC
106623+ if (new_m) {
106624+ unlink_anon_vmas(new_m);
106625+ kmem_cache_free(vm_area_cachep, new_m);
106626+ }
106627+#endif
106628+
106629+ unlink_anon_vmas(new);
106630 kmem_cache_free(vm_area_cachep, new);
106631 out_err:
106632 return err;
106633@@ -2509,6 +2953,15 @@ static int __split_vma(struct mm_struct *mm, struct vm_area_struct *vma,
106634 int split_vma(struct mm_struct *mm, struct vm_area_struct *vma,
106635 unsigned long addr, int new_below)
106636 {
106637+
106638+#ifdef CONFIG_PAX_SEGMEXEC
106639+ if (mm->pax_flags & MF_PAX_SEGMEXEC) {
106640+ BUG_ON(vma->vm_end > SEGMEXEC_TASK_SIZE);
106641+ if (mm->map_count >= sysctl_max_map_count-1)
106642+ return -ENOMEM;
106643+ } else
106644+#endif
106645+
106646 if (mm->map_count >= sysctl_max_map_count)
106647 return -ENOMEM;
106648
106649@@ -2520,11 +2973,30 @@ int split_vma(struct mm_struct *mm, struct vm_area_struct *vma,
106650 * work. This now handles partial unmappings.
106651 * Jeremy Fitzhardinge <jeremy@goop.org>
106652 */
106653+#ifdef CONFIG_PAX_SEGMEXEC
106654 int do_munmap(struct mm_struct *mm, unsigned long start, size_t len)
106655 {
106656+ int ret = __do_munmap(mm, start, len);
106657+ if (ret || !(mm->pax_flags & MF_PAX_SEGMEXEC))
106658+ return ret;
106659+
106660+ return __do_munmap(mm, start + SEGMEXEC_TASK_SIZE, len);
106661+}
106662+
106663+int __do_munmap(struct mm_struct *mm, unsigned long start, size_t len)
106664+#else
106665+int do_munmap(struct mm_struct *mm, unsigned long start, size_t len)
106666+#endif
106667+{
106668 unsigned long end;
106669 struct vm_area_struct *vma, *prev, *last;
106670
106671+ /*
106672+ * mm->mmap_sem is required to protect against another thread
106673+ * changing the mappings in case we sleep.
106674+ */
106675+ verify_mm_writelocked(mm);
106676+
106677 if ((start & ~PAGE_MASK) || start > TASK_SIZE || len > TASK_SIZE-start)
106678 return -EINVAL;
106679
106680@@ -2602,6 +3074,8 @@ int do_munmap(struct mm_struct *mm, unsigned long start, size_t len)
106681 /* Fix up all other VM information */
106682 remove_vma_list(mm, vma);
106683
106684+ track_exec_limit(mm, start, end, 0UL);
106685+
106686 return 0;
106687 }
106688
106689@@ -2610,6 +3084,13 @@ int vm_munmap(unsigned long start, size_t len)
106690 int ret;
106691 struct mm_struct *mm = current->mm;
106692
106693+
106694+#ifdef CONFIG_PAX_SEGMEXEC
106695+ if ((mm->pax_flags & MF_PAX_SEGMEXEC) &&
106696+ (len > SEGMEXEC_TASK_SIZE || start > SEGMEXEC_TASK_SIZE-len))
106697+ return -EINVAL;
106698+#endif
106699+
106700 down_write(&mm->mmap_sem);
106701 ret = do_munmap(mm, start, len);
106702 up_write(&mm->mmap_sem);
106703@@ -2656,6 +3137,11 @@ SYSCALL_DEFINE5(remap_file_pages, unsigned long, start, unsigned long, size,
106704 down_write(&mm->mmap_sem);
106705 vma = find_vma(mm, start);
106706
106707+#ifdef CONFIG_PAX_SEGMEXEC
106708+ if (vma && (mm->pax_flags & MF_PAX_SEGMEXEC) && (vma->vm_flags & VM_MAYEXEC))
106709+ goto out;
106710+#endif
106711+
106712 if (!vma || !(vma->vm_flags & VM_SHARED))
106713 goto out;
106714
106715@@ -2692,16 +3178,6 @@ out:
106716 return ret;
106717 }
106718
106719-static inline void verify_mm_writelocked(struct mm_struct *mm)
106720-{
106721-#ifdef CONFIG_DEBUG_VM
106722- if (unlikely(down_read_trylock(&mm->mmap_sem))) {
106723- WARN_ON(1);
106724- up_read(&mm->mmap_sem);
106725- }
106726-#endif
106727-}
106728-
106729 /*
106730 * this is really a simplified "do_mmap". it only handles
106731 * anonymous maps. eventually we may be able to do some
106732@@ -2715,6 +3191,7 @@ static unsigned long do_brk(unsigned long addr, unsigned long len)
106733 struct rb_node **rb_link, *rb_parent;
106734 pgoff_t pgoff = addr >> PAGE_SHIFT;
106735 int error;
106736+ unsigned long charged;
106737
106738 len = PAGE_ALIGN(len);
106739 if (!len)
106740@@ -2722,10 +3199,24 @@ static unsigned long do_brk(unsigned long addr, unsigned long len)
106741
106742 flags = VM_DATA_DEFAULT_FLAGS | VM_ACCOUNT | mm->def_flags;
106743
106744+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
106745+ if (mm->pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) {
106746+ flags &= ~VM_EXEC;
106747+
106748+#ifdef CONFIG_PAX_MPROTECT
106749+ if (mm->pax_flags & MF_PAX_MPROTECT)
106750+ flags &= ~VM_MAYEXEC;
106751+#endif
106752+
106753+ }
106754+#endif
106755+
106756 error = get_unmapped_area(NULL, addr, len, 0, MAP_FIXED);
106757 if (error & ~PAGE_MASK)
106758 return error;
106759
106760+ charged = len >> PAGE_SHIFT;
106761+
106762 error = mlock_future_check(mm, mm->def_flags, len);
106763 if (error)
106764 return error;
106765@@ -2739,21 +3230,20 @@ static unsigned long do_brk(unsigned long addr, unsigned long len)
106766 /*
106767 * Clear old maps. this also does some error checking for us
106768 */
106769- munmap_back:
106770 if (find_vma_links(mm, addr, addr + len, &prev, &rb_link, &rb_parent)) {
106771 if (do_munmap(mm, addr, len))
106772 return -ENOMEM;
106773- goto munmap_back;
106774+ BUG_ON(find_vma_links(mm, addr, addr + len, &prev, &rb_link, &rb_parent));
106775 }
106776
106777 /* Check against address space limits *after* clearing old maps... */
106778- if (!may_expand_vm(mm, len >> PAGE_SHIFT))
106779+ if (!may_expand_vm(mm, charged))
106780 return -ENOMEM;
106781
106782 if (mm->map_count > sysctl_max_map_count)
106783 return -ENOMEM;
106784
106785- if (security_vm_enough_memory_mm(mm, len >> PAGE_SHIFT))
106786+ if (security_vm_enough_memory_mm(mm, charged))
106787 return -ENOMEM;
106788
106789 /* Can we just expand an old private anonymous mapping? */
106790@@ -2767,7 +3257,7 @@ static unsigned long do_brk(unsigned long addr, unsigned long len)
106791 */
106792 vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
106793 if (!vma) {
106794- vm_unacct_memory(len >> PAGE_SHIFT);
106795+ vm_unacct_memory(charged);
106796 return -ENOMEM;
106797 }
106798
106799@@ -2781,10 +3271,11 @@ static unsigned long do_brk(unsigned long addr, unsigned long len)
106800 vma_link(mm, vma, prev, rb_link, rb_parent);
106801 out:
106802 perf_event_mmap(vma);
106803- mm->total_vm += len >> PAGE_SHIFT;
106804+ mm->total_vm += charged;
106805 if (flags & VM_LOCKED)
106806- mm->locked_vm += (len >> PAGE_SHIFT);
106807+ mm->locked_vm += charged;
106808 vma->vm_flags |= VM_SOFTDIRTY;
106809+ track_exec_limit(mm, addr, addr + len, flags);
106810 return addr;
106811 }
106812
106813@@ -2846,6 +3337,7 @@ void exit_mmap(struct mm_struct *mm)
106814 while (vma) {
106815 if (vma->vm_flags & VM_ACCOUNT)
106816 nr_accounted += vma_pages(vma);
106817+ vma->vm_mirror = NULL;
106818 vma = remove_vma(vma);
106819 }
106820 vm_unacct_memory(nr_accounted);
106821@@ -2860,6 +3352,13 @@ int insert_vm_struct(struct mm_struct *mm, struct vm_area_struct *vma)
106822 struct vm_area_struct *prev;
106823 struct rb_node **rb_link, *rb_parent;
106824
106825+#ifdef CONFIG_PAX_SEGMEXEC
106826+ struct vm_area_struct *vma_m = NULL;
106827+#endif
106828+
106829+ if (security_mmap_addr(vma->vm_start))
106830+ return -EPERM;
106831+
106832 /*
106833 * The vm_pgoff of a purely anonymous vma should be irrelevant
106834 * until its first write fault, when page's anon_vma and index
106835@@ -2883,7 +3382,21 @@ int insert_vm_struct(struct mm_struct *mm, struct vm_area_struct *vma)
106836 security_vm_enough_memory_mm(mm, vma_pages(vma)))
106837 return -ENOMEM;
106838
106839+#ifdef CONFIG_PAX_SEGMEXEC
106840+ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && (vma->vm_flags & VM_EXEC)) {
106841+ vma_m = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
106842+ if (!vma_m)
106843+ return -ENOMEM;
106844+ }
106845+#endif
106846+
106847 vma_link(mm, vma, prev, rb_link, rb_parent);
106848+
106849+#ifdef CONFIG_PAX_SEGMEXEC
106850+ if (vma_m)
106851+ BUG_ON(pax_mirror_vma(vma_m, vma));
106852+#endif
106853+
106854 return 0;
106855 }
106856
106857@@ -2902,6 +3415,8 @@ struct vm_area_struct *copy_vma(struct vm_area_struct **vmap,
106858 struct rb_node **rb_link, *rb_parent;
106859 bool faulted_in_anon_vma = true;
106860
106861+ BUG_ON(vma->vm_mirror);
106862+
106863 /*
106864 * If anonymous vma has not yet been faulted, update new pgoff
106865 * to match new location, to increase its chance of merging.
106866@@ -2966,6 +3481,39 @@ struct vm_area_struct *copy_vma(struct vm_area_struct **vmap,
106867 return NULL;
106868 }
106869
106870+#ifdef CONFIG_PAX_SEGMEXEC
106871+long pax_mirror_vma(struct vm_area_struct *vma_m, struct vm_area_struct *vma)
106872+{
106873+ struct vm_area_struct *prev_m;
106874+ struct rb_node **rb_link_m, *rb_parent_m;
106875+ struct mempolicy *pol_m;
106876+
106877+ BUG_ON(!(vma->vm_mm->pax_flags & MF_PAX_SEGMEXEC) || !(vma->vm_flags & VM_EXEC));
106878+ BUG_ON(vma->vm_mirror || vma_m->vm_mirror);
106879+ BUG_ON(!mpol_equal(vma_policy(vma), vma_policy(vma_m)));
106880+ *vma_m = *vma;
106881+ INIT_LIST_HEAD(&vma_m->anon_vma_chain);
106882+ if (anon_vma_clone(vma_m, vma))
106883+ return -ENOMEM;
106884+ pol_m = vma_policy(vma_m);
106885+ mpol_get(pol_m);
106886+ set_vma_policy(vma_m, pol_m);
106887+ vma_m->vm_start += SEGMEXEC_TASK_SIZE;
106888+ vma_m->vm_end += SEGMEXEC_TASK_SIZE;
106889+ vma_m->vm_flags &= ~(VM_WRITE | VM_MAYWRITE | VM_ACCOUNT | VM_LOCKED);
106890+ vma_m->vm_page_prot = vm_get_page_prot(vma_m->vm_flags);
106891+ if (vma_m->vm_file)
106892+ get_file(vma_m->vm_file);
106893+ if (vma_m->vm_ops && vma_m->vm_ops->open)
106894+ vma_m->vm_ops->open(vma_m);
106895+ BUG_ON(find_vma_links(vma->vm_mm, vma_m->vm_start, vma_m->vm_end, &prev_m, &rb_link_m, &rb_parent_m));
106896+ vma_link(vma->vm_mm, vma_m, prev_m, rb_link_m, rb_parent_m);
106897+ vma_m->vm_mirror = vma;
106898+ vma->vm_mirror = vma_m;
106899+ return 0;
106900+}
106901+#endif
106902+
106903 /*
106904 * Return true if the calling process may expand its vm space by the passed
106905 * number of pages
106906@@ -2977,6 +3525,7 @@ int may_expand_vm(struct mm_struct *mm, unsigned long npages)
106907
106908 lim = rlimit(RLIMIT_AS) >> PAGE_SHIFT;
106909
106910+ gr_learn_resource(current, RLIMIT_AS, (cur + npages) << PAGE_SHIFT, 1);
106911 if (cur + npages > lim)
106912 return 0;
106913 return 1;
106914@@ -3059,6 +3608,22 @@ static struct vm_area_struct *__install_special_mapping(
106915 vma->vm_start = addr;
106916 vma->vm_end = addr + len;
106917
106918+#ifdef CONFIG_PAX_MPROTECT
106919+ if (mm->pax_flags & MF_PAX_MPROTECT) {
106920+#ifndef CONFIG_PAX_MPROTECT_COMPAT
106921+ if ((vm_flags & (VM_WRITE | VM_EXEC)) == (VM_WRITE | VM_EXEC))
106922+ return ERR_PTR(-EPERM);
106923+ if (!(vm_flags & VM_EXEC))
106924+ vm_flags &= ~VM_MAYEXEC;
106925+#else
106926+ if ((vm_flags & (VM_WRITE | VM_EXEC)) != VM_EXEC)
106927+ vm_flags &= ~(VM_EXEC | VM_MAYEXEC);
106928+#endif
106929+ else
106930+ vm_flags &= ~VM_MAYWRITE;
106931+ }
106932+#endif
106933+
106934 vma->vm_flags = vm_flags | mm->def_flags | VM_DONTEXPAND | VM_SOFTDIRTY;
106935 vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
106936
106937diff --git a/mm/mprotect.c b/mm/mprotect.c
106938index 8858483..72f2464 100644
106939--- a/mm/mprotect.c
106940+++ b/mm/mprotect.c
106941@@ -24,10 +24,18 @@
106942 #include <linux/migrate.h>
106943 #include <linux/perf_event.h>
106944 #include <linux/ksm.h>
106945+#include <linux/sched/sysctl.h>
106946+
106947+#ifdef CONFIG_PAX_MPROTECT
106948+#include <linux/elf.h>
106949+#include <linux/binfmts.h>
106950+#endif
106951+
106952 #include <asm/uaccess.h>
106953 #include <asm/pgtable.h>
106954 #include <asm/cacheflush.h>
106955 #include <asm/tlbflush.h>
106956+#include <asm/mmu_context.h>
106957
106958 /*
106959 * For a prot_numa update we only hold mmap_sem for read so there is a
106960@@ -252,6 +260,48 @@ unsigned long change_protection(struct vm_area_struct *vma, unsigned long start,
106961 return pages;
106962 }
106963
106964+#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT
106965+/* called while holding the mmap semaphor for writing except stack expansion */
106966+void track_exec_limit(struct mm_struct *mm, unsigned long start, unsigned long end, unsigned long prot)
106967+{
106968+ unsigned long oldlimit, newlimit = 0UL;
106969+
106970+ if (!(mm->pax_flags & MF_PAX_PAGEEXEC) || (__supported_pte_mask & _PAGE_NX))
106971+ return;
106972+
106973+ spin_lock(&mm->page_table_lock);
106974+ oldlimit = mm->context.user_cs_limit;
106975+ if ((prot & VM_EXEC) && oldlimit < end)
106976+ /* USER_CS limit moved up */
106977+ newlimit = end;
106978+ else if (!(prot & VM_EXEC) && start < oldlimit && oldlimit <= end)
106979+ /* USER_CS limit moved down */
106980+ newlimit = start;
106981+
106982+ if (newlimit) {
106983+ mm->context.user_cs_limit = newlimit;
106984+
106985+#ifdef CONFIG_SMP
106986+ wmb();
106987+ cpumask_clear(&mm->context.cpu_user_cs_mask);
106988+ cpumask_set_cpu(smp_processor_id(), &mm->context.cpu_user_cs_mask);
106989+#endif
106990+
106991+ set_user_cs(mm->context.user_cs_base, mm->context.user_cs_limit, smp_processor_id());
106992+ }
106993+ spin_unlock(&mm->page_table_lock);
106994+ if (newlimit == end) {
106995+ struct vm_area_struct *vma = find_vma(mm, oldlimit);
106996+
106997+ for (; vma && vma->vm_start < end; vma = vma->vm_next)
106998+ if (is_vm_hugetlb_page(vma))
106999+ hugetlb_change_protection(vma, vma->vm_start, vma->vm_end, vma->vm_page_prot);
107000+ else
107001+ change_protection(vma, vma->vm_start, vma->vm_end, vma->vm_page_prot, vma_wants_writenotify(vma), 0);
107002+ }
107003+}
107004+#endif
107005+
107006 int
107007 mprotect_fixup(struct vm_area_struct *vma, struct vm_area_struct **pprev,
107008 unsigned long start, unsigned long end, unsigned long newflags)
107009@@ -264,11 +314,29 @@ mprotect_fixup(struct vm_area_struct *vma, struct vm_area_struct **pprev,
107010 int error;
107011 int dirty_accountable = 0;
107012
107013+#ifdef CONFIG_PAX_SEGMEXEC
107014+ struct vm_area_struct *vma_m = NULL;
107015+ unsigned long start_m, end_m;
107016+
107017+ start_m = start + SEGMEXEC_TASK_SIZE;
107018+ end_m = end + SEGMEXEC_TASK_SIZE;
107019+#endif
107020+
107021 if (newflags == oldflags) {
107022 *pprev = vma;
107023 return 0;
107024 }
107025
107026+ if (newflags & (VM_READ | VM_WRITE | VM_EXEC)) {
107027+ struct vm_area_struct *prev = vma->vm_prev, *next = vma->vm_next;
107028+
107029+ if (next && (next->vm_flags & VM_GROWSDOWN) && sysctl_heap_stack_gap > next->vm_start - end)
107030+ return -ENOMEM;
107031+
107032+ if (prev && (prev->vm_flags & VM_GROWSUP) && sysctl_heap_stack_gap > start - prev->vm_end)
107033+ return -ENOMEM;
107034+ }
107035+
107036 /*
107037 * If we make a private mapping writable we increase our commit;
107038 * but (without finer accounting) cannot reduce our commit if we
107039@@ -285,6 +353,42 @@ mprotect_fixup(struct vm_area_struct *vma, struct vm_area_struct **pprev,
107040 }
107041 }
107042
107043+#ifdef CONFIG_PAX_SEGMEXEC
107044+ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && ((oldflags ^ newflags) & VM_EXEC)) {
107045+ if (start != vma->vm_start) {
107046+ error = split_vma(mm, vma, start, 1);
107047+ if (error)
107048+ goto fail;
107049+ BUG_ON(!*pprev || (*pprev)->vm_next == vma);
107050+ *pprev = (*pprev)->vm_next;
107051+ }
107052+
107053+ if (end != vma->vm_end) {
107054+ error = split_vma(mm, vma, end, 0);
107055+ if (error)
107056+ goto fail;
107057+ }
107058+
107059+ if (pax_find_mirror_vma(vma)) {
107060+ error = __do_munmap(mm, start_m, end_m - start_m);
107061+ if (error)
107062+ goto fail;
107063+ } else {
107064+ vma_m = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
107065+ if (!vma_m) {
107066+ error = -ENOMEM;
107067+ goto fail;
107068+ }
107069+ vma->vm_flags = newflags;
107070+ error = pax_mirror_vma(vma_m, vma);
107071+ if (error) {
107072+ vma->vm_flags = oldflags;
107073+ goto fail;
107074+ }
107075+ }
107076+ }
107077+#endif
107078+
107079 /*
107080 * First try to merge with previous and/or next vma.
107081 */
107082@@ -315,7 +419,19 @@ success:
107083 * vm_flags and vm_page_prot are protected by the mmap_sem
107084 * held in write mode.
107085 */
107086+
107087+#ifdef CONFIG_PAX_SEGMEXEC
107088+ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && (newflags & VM_EXEC) && ((vma->vm_flags ^ newflags) & VM_READ))
107089+ pax_find_mirror_vma(vma)->vm_flags ^= VM_READ;
107090+#endif
107091+
107092 vma->vm_flags = newflags;
107093+
107094+#ifdef CONFIG_PAX_MPROTECT
107095+ if (mm->binfmt && mm->binfmt->handle_mprotect)
107096+ mm->binfmt->handle_mprotect(vma, newflags);
107097+#endif
107098+
107099 dirty_accountable = vma_wants_writenotify(vma);
107100 vma_set_page_prot(vma);
107101
107102@@ -351,6 +467,17 @@ SYSCALL_DEFINE3(mprotect, unsigned long, start, size_t, len,
107103 end = start + len;
107104 if (end <= start)
107105 return -ENOMEM;
107106+
107107+#ifdef CONFIG_PAX_SEGMEXEC
107108+ if (current->mm->pax_flags & MF_PAX_SEGMEXEC) {
107109+ if (end > SEGMEXEC_TASK_SIZE)
107110+ return -EINVAL;
107111+ } else
107112+#endif
107113+
107114+ if (end > TASK_SIZE)
107115+ return -EINVAL;
107116+
107117 if (!arch_validate_prot(prot))
107118 return -EINVAL;
107119
107120@@ -358,7 +485,7 @@ SYSCALL_DEFINE3(mprotect, unsigned long, start, size_t, len,
107121 /*
107122 * Does the application expect PROT_READ to imply PROT_EXEC:
107123 */
107124- if ((prot & PROT_READ) && (current->personality & READ_IMPLIES_EXEC))
107125+ if ((prot & (PROT_READ | PROT_WRITE)) && (current->personality & READ_IMPLIES_EXEC))
107126 prot |= PROT_EXEC;
107127
107128 vm_flags = calc_vm_prot_bits(prot);
107129@@ -390,6 +517,11 @@ SYSCALL_DEFINE3(mprotect, unsigned long, start, size_t, len,
107130 if (start > vma->vm_start)
107131 prev = vma;
107132
107133+#ifdef CONFIG_PAX_MPROTECT
107134+ if (current->mm->binfmt && current->mm->binfmt->handle_mprotect)
107135+ current->mm->binfmt->handle_mprotect(vma, vm_flags);
107136+#endif
107137+
107138 for (nstart = start ; ; ) {
107139 unsigned long newflags;
107140
107141@@ -400,6 +532,14 @@ SYSCALL_DEFINE3(mprotect, unsigned long, start, size_t, len,
107142
107143 /* newflags >> 4 shift VM_MAY% in place of VM_% */
107144 if ((newflags & ~(newflags >> 4)) & (VM_READ | VM_WRITE | VM_EXEC)) {
107145+ if (prot & (PROT_WRITE | PROT_EXEC))
107146+ gr_log_rwxmprotect(vma);
107147+
107148+ error = -EACCES;
107149+ goto out;
107150+ }
107151+
107152+ if (!gr_acl_handle_mprotect(vma->vm_file, prot)) {
107153 error = -EACCES;
107154 goto out;
107155 }
107156@@ -414,6 +554,9 @@ SYSCALL_DEFINE3(mprotect, unsigned long, start, size_t, len,
107157 error = mprotect_fixup(vma, &prev, nstart, tmp, newflags);
107158 if (error)
107159 goto out;
107160+
107161+ track_exec_limit(current->mm, nstart, tmp, vm_flags);
107162+
107163 nstart = tmp;
107164
107165 if (nstart < prev->vm_end)
107166diff --git a/mm/mremap.c b/mm/mremap.c
107167index 2dc44b1..caa1819 100644
107168--- a/mm/mremap.c
107169+++ b/mm/mremap.c
107170@@ -142,6 +142,12 @@ static void move_ptes(struct vm_area_struct *vma, pmd_t *old_pmd,
107171 continue;
107172 pte = ptep_get_and_clear(mm, old_addr, old_pte);
107173 pte = move_pte(pte, new_vma->vm_page_prot, old_addr, new_addr);
107174+
107175+#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT
107176+ if (!(__supported_pte_mask & _PAGE_NX) && pte_present(pte) && (new_vma->vm_flags & (VM_PAGEEXEC | VM_EXEC)) == VM_PAGEEXEC)
107177+ pte = pte_exprotect(pte);
107178+#endif
107179+
107180 pte = move_soft_dirty_pte(pte);
107181 set_pte_at(mm, new_addr, new_pte, pte);
107182 }
107183@@ -350,6 +356,11 @@ static struct vm_area_struct *vma_to_resize(unsigned long addr,
107184 if (is_vm_hugetlb_page(vma))
107185 goto Einval;
107186
107187+#ifdef CONFIG_PAX_SEGMEXEC
107188+ if (pax_find_mirror_vma(vma))
107189+ goto Einval;
107190+#endif
107191+
107192 /* We can't remap across vm area boundaries */
107193 if (old_len > vma->vm_end - addr)
107194 goto Efault;
107195@@ -405,20 +416,25 @@ static unsigned long mremap_to(unsigned long addr, unsigned long old_len,
107196 unsigned long ret = -EINVAL;
107197 unsigned long charged = 0;
107198 unsigned long map_flags;
107199+ unsigned long pax_task_size = TASK_SIZE;
107200
107201 if (new_addr & ~PAGE_MASK)
107202 goto out;
107203
107204- if (new_len > TASK_SIZE || new_addr > TASK_SIZE - new_len)
107205+#ifdef CONFIG_PAX_SEGMEXEC
107206+ if (mm->pax_flags & MF_PAX_SEGMEXEC)
107207+ pax_task_size = SEGMEXEC_TASK_SIZE;
107208+#endif
107209+
107210+ pax_task_size -= PAGE_SIZE;
107211+
107212+ if (new_len > TASK_SIZE || new_addr > pax_task_size - new_len)
107213 goto out;
107214
107215 /* Check if the location we're moving into overlaps the
107216 * old location at all, and fail if it does.
107217 */
107218- if ((new_addr <= addr) && (new_addr+new_len) > addr)
107219- goto out;
107220-
107221- if ((addr <= new_addr) && (addr+old_len) > new_addr)
107222+ if (addr + old_len > new_addr && new_addr + new_len > addr)
107223 goto out;
107224
107225 ret = do_munmap(mm, new_addr, new_len);
107226@@ -487,6 +503,7 @@ SYSCALL_DEFINE5(mremap, unsigned long, addr, unsigned long, old_len,
107227 unsigned long ret = -EINVAL;
107228 unsigned long charged = 0;
107229 bool locked = false;
107230+ unsigned long pax_task_size = TASK_SIZE;
107231
107232 if (flags & ~(MREMAP_FIXED | MREMAP_MAYMOVE))
107233 return ret;
107234@@ -508,6 +525,17 @@ SYSCALL_DEFINE5(mremap, unsigned long, addr, unsigned long, old_len,
107235 if (!new_len)
107236 return ret;
107237
107238+#ifdef CONFIG_PAX_SEGMEXEC
107239+ if (mm->pax_flags & MF_PAX_SEGMEXEC)
107240+ pax_task_size = SEGMEXEC_TASK_SIZE;
107241+#endif
107242+
107243+ pax_task_size -= PAGE_SIZE;
107244+
107245+ if (new_len > pax_task_size || addr > pax_task_size-new_len ||
107246+ old_len > pax_task_size || addr > pax_task_size-old_len)
107247+ return ret;
107248+
107249 down_write(&current->mm->mmap_sem);
107250
107251 if (flags & MREMAP_FIXED) {
107252@@ -558,6 +586,7 @@ SYSCALL_DEFINE5(mremap, unsigned long, addr, unsigned long, old_len,
107253 new_addr = addr;
107254 }
107255 ret = addr;
107256+ track_exec_limit(vma->vm_mm, vma->vm_start, addr + new_len, vma->vm_flags);
107257 goto out;
107258 }
107259 }
107260@@ -581,7 +610,12 @@ SYSCALL_DEFINE5(mremap, unsigned long, addr, unsigned long, old_len,
107261 goto out;
107262 }
107263
107264+ map_flags = vma->vm_flags;
107265 ret = move_vma(vma, addr, old_len, new_len, new_addr, &locked);
107266+ if (!(ret & ~PAGE_MASK)) {
107267+ track_exec_limit(current->mm, addr, addr + old_len, 0UL);
107268+ track_exec_limit(current->mm, new_addr, new_addr + new_len, map_flags);
107269+ }
107270 }
107271 out:
107272 if (ret & ~PAGE_MASK)
107273diff --git a/mm/nommu.c b/mm/nommu.c
107274index 3fba2dc9..fdad748 100644
107275--- a/mm/nommu.c
107276+++ b/mm/nommu.c
107277@@ -72,7 +72,6 @@ int sysctl_max_map_count = DEFAULT_MAX_MAP_COUNT;
107278 int sysctl_nr_trim_pages = CONFIG_NOMMU_INITIAL_TRIM_EXCESS;
107279 unsigned long sysctl_user_reserve_kbytes __read_mostly = 1UL << 17; /* 128MB */
107280 unsigned long sysctl_admin_reserve_kbytes __read_mostly = 1UL << 13; /* 8MB */
107281-int heap_stack_gap = 0;
107282
107283 atomic_long_t mmap_pages_allocated;
107284
107285@@ -892,15 +891,6 @@ struct vm_area_struct *find_vma(struct mm_struct *mm, unsigned long addr)
107286 EXPORT_SYMBOL(find_vma);
107287
107288 /*
107289- * find a VMA
107290- * - we don't extend stack VMAs under NOMMU conditions
107291- */
107292-struct vm_area_struct *find_extend_vma(struct mm_struct *mm, unsigned long addr)
107293-{
107294- return find_vma(mm, addr);
107295-}
107296-
107297-/*
107298 * expand a stack to a given address
107299 * - not supported under NOMMU conditions
107300 */
107301@@ -1585,6 +1575,7 @@ int split_vma(struct mm_struct *mm, struct vm_area_struct *vma,
107302
107303 /* most fields are the same, copy all, and then fixup */
107304 *new = *vma;
107305+ INIT_LIST_HEAD(&new->anon_vma_chain);
107306 *region = *vma->vm_region;
107307 new->vm_region = region;
107308
107309@@ -2007,8 +1998,8 @@ void filemap_map_pages(struct vm_area_struct *vma, struct vm_fault *vmf)
107310 }
107311 EXPORT_SYMBOL(filemap_map_pages);
107312
107313-static int __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm,
107314- unsigned long addr, void *buf, int len, int write)
107315+static ssize_t __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm,
107316+ unsigned long addr, void *buf, size_t len, int write)
107317 {
107318 struct vm_area_struct *vma;
107319
107320@@ -2049,8 +2040,8 @@ static int __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm,
107321 *
107322 * The caller must hold a reference on @mm.
107323 */
107324-int access_remote_vm(struct mm_struct *mm, unsigned long addr,
107325- void *buf, int len, int write)
107326+ssize_t access_remote_vm(struct mm_struct *mm, unsigned long addr,
107327+ void *buf, size_t len, int write)
107328 {
107329 return __access_remote_vm(NULL, mm, addr, buf, len, write);
107330 }
107331@@ -2059,7 +2050,7 @@ int access_remote_vm(struct mm_struct *mm, unsigned long addr,
107332 * Access another process' address space.
107333 * - source/target buffer must be kernel space
107334 */
107335-int access_process_vm(struct task_struct *tsk, unsigned long addr, void *buf, int len, int write)
107336+ssize_t access_process_vm(struct task_struct *tsk, unsigned long addr, void *buf, size_t len, int write)
107337 {
107338 struct mm_struct *mm;
107339
107340diff --git a/mm/page-writeback.c b/mm/page-writeback.c
107341index ad05f2f..cee723a 100644
107342--- a/mm/page-writeback.c
107343+++ b/mm/page-writeback.c
107344@@ -664,7 +664,7 @@ static long long pos_ratio_polynom(unsigned long setpoint,
107345 * card's bdi_dirty may rush to many times higher than bdi_setpoint.
107346 * - the bdi dirty thresh drops quickly due to change of JBOD workload
107347 */
107348-static unsigned long bdi_position_ratio(struct backing_dev_info *bdi,
107349+static unsigned long __intentional_overflow(-1) bdi_position_ratio(struct backing_dev_info *bdi,
107350 unsigned long thresh,
107351 unsigned long bg_thresh,
107352 unsigned long dirty,
107353diff --git a/mm/page_alloc.c b/mm/page_alloc.c
107354index 40e2942..0eb29a2 100644
107355--- a/mm/page_alloc.c
107356+++ b/mm/page_alloc.c
107357@@ -61,6 +61,7 @@
107358 #include <linux/hugetlb.h>
107359 #include <linux/sched/rt.h>
107360 #include <linux/page_owner.h>
107361+#include <linux/random.h>
107362
107363 #include <asm/sections.h>
107364 #include <asm/tlbflush.h>
107365@@ -357,7 +358,7 @@ out:
107366 * This usage means that zero-order pages may not be compound.
107367 */
107368
107369-static void free_compound_page(struct page *page)
107370+void free_compound_page(struct page *page)
107371 {
107372 __free_pages_ok(page, compound_order(page));
107373 }
107374@@ -480,7 +481,7 @@ static inline void clear_page_guard(struct zone *zone, struct page *page,
107375 __mod_zone_freepage_state(zone, (1 << order), migratetype);
107376 }
107377 #else
107378-struct page_ext_operations debug_guardpage_ops = { NULL, };
107379+struct page_ext_operations debug_guardpage_ops = { .need = NULL, .init = NULL };
107380 static inline void set_page_guard(struct zone *zone, struct page *page,
107381 unsigned int order, int migratetype) {}
107382 static inline void clear_page_guard(struct zone *zone, struct page *page,
107383@@ -783,6 +784,10 @@ static bool free_pages_prepare(struct page *page, unsigned int order)
107384 bool compound = PageCompound(page);
107385 int i, bad = 0;
107386
107387+#ifdef CONFIG_PAX_MEMORY_SANITIZE
107388+ unsigned long index = 1UL << order;
107389+#endif
107390+
107391 VM_BUG_ON_PAGE(PageTail(page), page);
107392 VM_BUG_ON_PAGE(compound && compound_order(page) != order, page);
107393
107394@@ -809,6 +814,12 @@ static bool free_pages_prepare(struct page *page, unsigned int order)
107395 debug_check_no_obj_freed(page_address(page),
107396 PAGE_SIZE << order);
107397 }
107398+
107399+#ifdef CONFIG_PAX_MEMORY_SANITIZE
107400+ for (; index; --index)
107401+ sanitize_highpage(page + index - 1);
107402+#endif
107403+
107404 arch_free_page(page, order);
107405 kernel_map_pages(page, 1 << order, 0);
107406
107407@@ -832,6 +843,20 @@ static void __free_pages_ok(struct page *page, unsigned int order)
107408 local_irq_restore(flags);
107409 }
107410
107411+#ifdef CONFIG_PAX_LATENT_ENTROPY
107412+bool __meminitdata extra_latent_entropy;
107413+
107414+static int __init setup_pax_extra_latent_entropy(char *str)
107415+{
107416+ extra_latent_entropy = true;
107417+ return 0;
107418+}
107419+early_param("pax_extra_latent_entropy", setup_pax_extra_latent_entropy);
107420+
107421+volatile u64 latent_entropy __latent_entropy;
107422+EXPORT_SYMBOL(latent_entropy);
107423+#endif
107424+
107425 void __init __free_pages_bootmem(struct page *page, unsigned int order)
107426 {
107427 unsigned int nr_pages = 1 << order;
107428@@ -847,6 +872,19 @@ void __init __free_pages_bootmem(struct page *page, unsigned int order)
107429 __ClearPageReserved(p);
107430 set_page_count(p, 0);
107431
107432+#ifdef CONFIG_PAX_LATENT_ENTROPY
107433+ if (extra_latent_entropy && !PageHighMem(page) && page_to_pfn(page) < 0x100000) {
107434+ u64 hash = 0;
107435+ size_t index, end = PAGE_SIZE * nr_pages / sizeof hash;
107436+ const u64 *data = lowmem_page_address(page);
107437+
107438+ for (index = 0; index < end; index++)
107439+ hash ^= hash + data[index];
107440+ latent_entropy ^= hash;
107441+ add_device_randomness((const void *)&latent_entropy, sizeof(latent_entropy));
107442+ }
107443+#endif
107444+
107445 page_zone(page)->managed_pages += nr_pages;
107446 set_page_refcounted(page);
107447 __free_pages(page, order);
107448@@ -974,8 +1012,10 @@ static int prep_new_page(struct page *page, unsigned int order, gfp_t gfp_flags,
107449 kernel_map_pages(page, 1 << order, 1);
107450 kasan_alloc_pages(page, order);
107451
107452+#ifndef CONFIG_PAX_MEMORY_SANITIZE
107453 if (gfp_flags & __GFP_ZERO)
107454 prep_zero_page(page, order, gfp_flags);
107455+#endif
107456
107457 if (order && (gfp_flags & __GFP_COMP))
107458 prep_compound_page(page, order);
107459@@ -1699,7 +1739,7 @@ struct page *buffered_rmqueue(struct zone *preferred_zone,
107460 }
107461
107462 __mod_zone_page_state(zone, NR_ALLOC_BATCH, -(1 << order));
107463- if (atomic_long_read(&zone->vm_stat[NR_ALLOC_BATCH]) <= 0 &&
107464+ if (atomic_long_read_unchecked(&zone->vm_stat[NR_ALLOC_BATCH]) <= 0 &&
107465 !test_bit(ZONE_FAIR_DEPLETED, &zone->flags))
107466 set_bit(ZONE_FAIR_DEPLETED, &zone->flags);
107467
107468@@ -2018,7 +2058,7 @@ static void reset_alloc_batches(struct zone *preferred_zone)
107469 do {
107470 mod_zone_page_state(zone, NR_ALLOC_BATCH,
107471 high_wmark_pages(zone) - low_wmark_pages(zone) -
107472- atomic_long_read(&zone->vm_stat[NR_ALLOC_BATCH]));
107473+ atomic_long_read_unchecked(&zone->vm_stat[NR_ALLOC_BATCH]));
107474 clear_bit(ZONE_FAIR_DEPLETED, &zone->flags);
107475 } while (zone++ != preferred_zone);
107476 }
107477@@ -5738,7 +5778,7 @@ static void __setup_per_zone_wmarks(void)
107478
107479 __mod_zone_page_state(zone, NR_ALLOC_BATCH,
107480 high_wmark_pages(zone) - low_wmark_pages(zone) -
107481- atomic_long_read(&zone->vm_stat[NR_ALLOC_BATCH]));
107482+ atomic_long_read_unchecked(&zone->vm_stat[NR_ALLOC_BATCH]));
107483
107484 setup_zone_migrate_reserve(zone);
107485 spin_unlock_irqrestore(&zone->lock, flags);
107486diff --git a/mm/percpu.c b/mm/percpu.c
107487index 73c97a5..508ee25 100644
107488--- a/mm/percpu.c
107489+++ b/mm/percpu.c
107490@@ -131,7 +131,7 @@ static unsigned int pcpu_low_unit_cpu __read_mostly;
107491 static unsigned int pcpu_high_unit_cpu __read_mostly;
107492
107493 /* the address of the first chunk which starts with the kernel static area */
107494-void *pcpu_base_addr __read_mostly;
107495+void *pcpu_base_addr __read_only;
107496 EXPORT_SYMBOL_GPL(pcpu_base_addr);
107497
107498 static const int *pcpu_unit_map __read_mostly; /* cpu -> unit */
107499diff --git a/mm/process_vm_access.c b/mm/process_vm_access.c
107500index b159769..d07037f 100644
107501--- a/mm/process_vm_access.c
107502+++ b/mm/process_vm_access.c
107503@@ -13,6 +13,7 @@
107504 #include <linux/uio.h>
107505 #include <linux/sched.h>
107506 #include <linux/highmem.h>
107507+#include <linux/security.h>
107508 #include <linux/ptrace.h>
107509 #include <linux/slab.h>
107510 #include <linux/syscalls.h>
107511@@ -154,19 +155,19 @@ static ssize_t process_vm_rw_core(pid_t pid, struct iov_iter *iter,
107512 ssize_t iov_len;
107513 size_t total_len = iov_iter_count(iter);
107514
107515+ return -ENOSYS; // PaX: until properly audited
107516+
107517 /*
107518 * Work out how many pages of struct pages we're going to need
107519 * when eventually calling get_user_pages
107520 */
107521 for (i = 0; i < riovcnt; i++) {
107522 iov_len = rvec[i].iov_len;
107523- if (iov_len > 0) {
107524- nr_pages_iov = ((unsigned long)rvec[i].iov_base
107525- + iov_len)
107526- / PAGE_SIZE - (unsigned long)rvec[i].iov_base
107527- / PAGE_SIZE + 1;
107528- nr_pages = max(nr_pages, nr_pages_iov);
107529- }
107530+ if (iov_len <= 0)
107531+ continue;
107532+ nr_pages_iov = ((unsigned long)rvec[i].iov_base + iov_len) / PAGE_SIZE -
107533+ (unsigned long)rvec[i].iov_base / PAGE_SIZE + 1;
107534+ nr_pages = max(nr_pages, nr_pages_iov);
107535 }
107536
107537 if (nr_pages == 0)
107538@@ -194,6 +195,11 @@ static ssize_t process_vm_rw_core(pid_t pid, struct iov_iter *iter,
107539 goto free_proc_pages;
107540 }
107541
107542+ if (gr_handle_ptrace(task, vm_write ? PTRACE_POKETEXT : PTRACE_ATTACH)) {
107543+ rc = -EPERM;
107544+ goto put_task_struct;
107545+ }
107546+
107547 mm = mm_access(task, PTRACE_MODE_ATTACH);
107548 if (!mm || IS_ERR(mm)) {
107549 rc = IS_ERR(mm) ? PTR_ERR(mm) : -ESRCH;
107550diff --git a/mm/rmap.c b/mm/rmap.c
107551index c161a14..8a069bb 100644
107552--- a/mm/rmap.c
107553+++ b/mm/rmap.c
107554@@ -166,6 +166,10 @@ int anon_vma_prepare(struct vm_area_struct *vma)
107555 struct anon_vma *anon_vma = vma->anon_vma;
107556 struct anon_vma_chain *avc;
107557
107558+#ifdef CONFIG_PAX_SEGMEXEC
107559+ struct anon_vma_chain *avc_m = NULL;
107560+#endif
107561+
107562 might_sleep();
107563 if (unlikely(!anon_vma)) {
107564 struct mm_struct *mm = vma->vm_mm;
107565@@ -175,6 +179,12 @@ int anon_vma_prepare(struct vm_area_struct *vma)
107566 if (!avc)
107567 goto out_enomem;
107568
107569+#ifdef CONFIG_PAX_SEGMEXEC
107570+ avc_m = anon_vma_chain_alloc(GFP_KERNEL);
107571+ if (!avc_m)
107572+ goto out_enomem_free_avc;
107573+#endif
107574+
107575 anon_vma = find_mergeable_anon_vma(vma);
107576 allocated = NULL;
107577 if (!anon_vma) {
107578@@ -188,6 +198,19 @@ int anon_vma_prepare(struct vm_area_struct *vma)
107579 /* page_table_lock to protect against threads */
107580 spin_lock(&mm->page_table_lock);
107581 if (likely(!vma->anon_vma)) {
107582+
107583+#ifdef CONFIG_PAX_SEGMEXEC
107584+ struct vm_area_struct *vma_m = pax_find_mirror_vma(vma);
107585+
107586+ if (vma_m) {
107587+ BUG_ON(vma_m->anon_vma);
107588+ vma_m->anon_vma = anon_vma;
107589+ anon_vma_chain_link(vma_m, avc_m, anon_vma);
107590+ anon_vma->degree++;
107591+ avc_m = NULL;
107592+ }
107593+#endif
107594+
107595 vma->anon_vma = anon_vma;
107596 anon_vma_chain_link(vma, avc, anon_vma);
107597 /* vma reference or self-parent link for new root */
107598@@ -200,12 +223,24 @@ int anon_vma_prepare(struct vm_area_struct *vma)
107599
107600 if (unlikely(allocated))
107601 put_anon_vma(allocated);
107602+
107603+#ifdef CONFIG_PAX_SEGMEXEC
107604+ if (unlikely(avc_m))
107605+ anon_vma_chain_free(avc_m);
107606+#endif
107607+
107608 if (unlikely(avc))
107609 anon_vma_chain_free(avc);
107610 }
107611 return 0;
107612
107613 out_enomem_free_avc:
107614+
107615+#ifdef CONFIG_PAX_SEGMEXEC
107616+ if (avc_m)
107617+ anon_vma_chain_free(avc_m);
107618+#endif
107619+
107620 anon_vma_chain_free(avc);
107621 out_enomem:
107622 return -ENOMEM;
107623@@ -249,7 +284,7 @@ static inline void unlock_anon_vma_root(struct anon_vma *root)
107624 * good chance of avoiding scanning the whole hierarchy when it searches where
107625 * page is mapped.
107626 */
107627-int anon_vma_clone(struct vm_area_struct *dst, struct vm_area_struct *src)
107628+int anon_vma_clone(struct vm_area_struct *dst, const struct vm_area_struct *src)
107629 {
107630 struct anon_vma_chain *avc, *pavc;
107631 struct anon_vma *root = NULL;
107632@@ -303,7 +338,7 @@ int anon_vma_clone(struct vm_area_struct *dst, struct vm_area_struct *src)
107633 * the corresponding VMA in the parent process is attached to.
107634 * Returns 0 on success, non-zero on failure.
107635 */
107636-int anon_vma_fork(struct vm_area_struct *vma, struct vm_area_struct *pvma)
107637+int anon_vma_fork(struct vm_area_struct *vma, const struct vm_area_struct *pvma)
107638 {
107639 struct anon_vma_chain *avc;
107640 struct anon_vma *anon_vma;
107641@@ -423,8 +458,10 @@ static void anon_vma_ctor(void *data)
107642 void __init anon_vma_init(void)
107643 {
107644 anon_vma_cachep = kmem_cache_create("anon_vma", sizeof(struct anon_vma),
107645- 0, SLAB_DESTROY_BY_RCU|SLAB_PANIC, anon_vma_ctor);
107646- anon_vma_chain_cachep = KMEM_CACHE(anon_vma_chain, SLAB_PANIC);
107647+ 0, SLAB_DESTROY_BY_RCU|SLAB_PANIC|SLAB_NO_SANITIZE,
107648+ anon_vma_ctor);
107649+ anon_vma_chain_cachep = KMEM_CACHE(anon_vma_chain,
107650+ SLAB_PANIC|SLAB_NO_SANITIZE);
107651 }
107652
107653 /*
107654diff --git a/mm/shmem.c b/mm/shmem.c
107655index cf2d0ca..ec06b8b 100644
107656--- a/mm/shmem.c
107657+++ b/mm/shmem.c
107658@@ -33,7 +33,7 @@
107659 #include <linux/swap.h>
107660 #include <linux/aio.h>
107661
107662-static struct vfsmount *shm_mnt;
107663+struct vfsmount *shm_mnt;
107664
107665 #ifdef CONFIG_SHMEM
107666 /*
107667@@ -80,7 +80,7 @@ static struct vfsmount *shm_mnt;
107668 #define BOGO_DIRENT_SIZE 20
107669
107670 /* Symlink up to this size is kmalloc'ed instead of using a swappable page */
107671-#define SHORT_SYMLINK_LEN 128
107672+#define SHORT_SYMLINK_LEN 64
107673
107674 /*
107675 * shmem_fallocate communicates with shmem_fault or shmem_writepage via
107676@@ -2555,6 +2555,11 @@ static const struct xattr_handler *shmem_xattr_handlers[] = {
107677 static int shmem_xattr_validate(const char *name)
107678 {
107679 struct { const char *prefix; size_t len; } arr[] = {
107680+
107681+#ifdef CONFIG_PAX_XATTR_PAX_FLAGS
107682+ { XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN},
107683+#endif
107684+
107685 { XATTR_SECURITY_PREFIX, XATTR_SECURITY_PREFIX_LEN },
107686 { XATTR_TRUSTED_PREFIX, XATTR_TRUSTED_PREFIX_LEN }
107687 };
107688@@ -2610,6 +2615,15 @@ static int shmem_setxattr(struct dentry *dentry, const char *name,
107689 if (err)
107690 return err;
107691
107692+#ifdef CONFIG_PAX_XATTR_PAX_FLAGS
107693+ if (!strncmp(name, XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN)) {
107694+ if (strcmp(name, XATTR_NAME_PAX_FLAGS))
107695+ return -EOPNOTSUPP;
107696+ if (size > 8)
107697+ return -EINVAL;
107698+ }
107699+#endif
107700+
107701 return simple_xattr_set(&info->xattrs, name, value, size, flags);
107702 }
107703
107704@@ -2993,8 +3007,7 @@ int shmem_fill_super(struct super_block *sb, void *data, int silent)
107705 int err = -ENOMEM;
107706
107707 /* Round up to L1_CACHE_BYTES to resist false sharing */
107708- sbinfo = kzalloc(max((int)sizeof(struct shmem_sb_info),
107709- L1_CACHE_BYTES), GFP_KERNEL);
107710+ sbinfo = kzalloc(max(sizeof(struct shmem_sb_info), L1_CACHE_BYTES), GFP_KERNEL);
107711 if (!sbinfo)
107712 return -ENOMEM;
107713
107714diff --git a/mm/slab.c b/mm/slab.c
107715index c4b89ea..20990be 100644
107716--- a/mm/slab.c
107717+++ b/mm/slab.c
107718@@ -314,10 +314,12 @@ static void kmem_cache_node_init(struct kmem_cache_node *parent)
107719 if ((x)->max_freeable < i) \
107720 (x)->max_freeable = i; \
107721 } while (0)
107722-#define STATS_INC_ALLOCHIT(x) atomic_inc(&(x)->allochit)
107723-#define STATS_INC_ALLOCMISS(x) atomic_inc(&(x)->allocmiss)
107724-#define STATS_INC_FREEHIT(x) atomic_inc(&(x)->freehit)
107725-#define STATS_INC_FREEMISS(x) atomic_inc(&(x)->freemiss)
107726+#define STATS_INC_ALLOCHIT(x) atomic_inc_unchecked(&(x)->allochit)
107727+#define STATS_INC_ALLOCMISS(x) atomic_inc_unchecked(&(x)->allocmiss)
107728+#define STATS_INC_FREEHIT(x) atomic_inc_unchecked(&(x)->freehit)
107729+#define STATS_INC_FREEMISS(x) atomic_inc_unchecked(&(x)->freemiss)
107730+#define STATS_INC_SANITIZED(x) atomic_inc_unchecked(&(x)->sanitized)
107731+#define STATS_INC_NOT_SANITIZED(x) atomic_inc_unchecked(&(x)->not_sanitized)
107732 #else
107733 #define STATS_INC_ACTIVE(x) do { } while (0)
107734 #define STATS_DEC_ACTIVE(x) do { } while (0)
107735@@ -334,6 +336,8 @@ static void kmem_cache_node_init(struct kmem_cache_node *parent)
107736 #define STATS_INC_ALLOCMISS(x) do { } while (0)
107737 #define STATS_INC_FREEHIT(x) do { } while (0)
107738 #define STATS_INC_FREEMISS(x) do { } while (0)
107739+#define STATS_INC_SANITIZED(x) do { } while (0)
107740+#define STATS_INC_NOT_SANITIZED(x) do { } while (0)
107741 #endif
107742
107743 #if DEBUG
107744@@ -450,7 +454,7 @@ static inline void *index_to_obj(struct kmem_cache *cache, struct page *page,
107745 * reciprocal_divide(offset, cache->reciprocal_buffer_size)
107746 */
107747 static inline unsigned int obj_to_index(const struct kmem_cache *cache,
107748- const struct page *page, void *obj)
107749+ const struct page *page, const void *obj)
107750 {
107751 u32 offset = (obj - page->s_mem);
107752 return reciprocal_divide(offset, cache->reciprocal_buffer_size);
107753@@ -1438,7 +1442,7 @@ void __init kmem_cache_init(void)
107754 * structures first. Without this, further allocations will bug.
107755 */
107756 kmalloc_caches[INDEX_NODE] = create_kmalloc_cache("kmalloc-node",
107757- kmalloc_size(INDEX_NODE), ARCH_KMALLOC_FLAGS);
107758+ kmalloc_size(INDEX_NODE), SLAB_USERCOPY | ARCH_KMALLOC_FLAGS);
107759 slab_state = PARTIAL_NODE;
107760
107761 slab_early_init = 0;
107762@@ -2059,7 +2063,7 @@ __kmem_cache_alias(const char *name, size_t size, size_t align,
107763
107764 cachep = find_mergeable(size, align, flags, name, ctor);
107765 if (cachep) {
107766- cachep->refcount++;
107767+ atomic_inc(&cachep->refcount);
107768
107769 /*
107770 * Adjust the object sizes so that we clear
107771@@ -3357,6 +3361,20 @@ static inline void __cache_free(struct kmem_cache *cachep, void *objp,
107772 struct array_cache *ac = cpu_cache_get(cachep);
107773
107774 check_irq_off();
107775+
107776+#ifdef CONFIG_PAX_MEMORY_SANITIZE
107777+ if (cachep->flags & (SLAB_POISON | SLAB_NO_SANITIZE))
107778+ STATS_INC_NOT_SANITIZED(cachep);
107779+ else {
107780+ memset(objp, PAX_MEMORY_SANITIZE_VALUE, cachep->object_size);
107781+
107782+ if (cachep->ctor)
107783+ cachep->ctor(objp);
107784+
107785+ STATS_INC_SANITIZED(cachep);
107786+ }
107787+#endif
107788+
107789 kmemleak_free_recursive(objp, cachep->flags);
107790 objp = cache_free_debugcheck(cachep, objp, caller);
107791
107792@@ -3469,7 +3487,7 @@ __do_kmalloc_node(size_t size, gfp_t flags, int node, unsigned long caller)
107793 return kmem_cache_alloc_node_trace(cachep, flags, node, size);
107794 }
107795
107796-void *__kmalloc_node(size_t size, gfp_t flags, int node)
107797+void * __size_overflow(1) __kmalloc_node(size_t size, gfp_t flags, int node)
107798 {
107799 return __do_kmalloc_node(size, flags, node, _RET_IP_);
107800 }
107801@@ -3489,7 +3507,7 @@ EXPORT_SYMBOL(__kmalloc_node_track_caller);
107802 * @flags: the type of memory to allocate (see kmalloc).
107803 * @caller: function caller for debug tracking of the caller
107804 */
107805-static __always_inline void *__do_kmalloc(size_t size, gfp_t flags,
107806+static __always_inline void * __size_overflow(1) __do_kmalloc(size_t size, gfp_t flags,
107807 unsigned long caller)
107808 {
107809 struct kmem_cache *cachep;
107810@@ -3562,6 +3580,7 @@ void kfree(const void *objp)
107811
107812 if (unlikely(ZERO_OR_NULL_PTR(objp)))
107813 return;
107814+ VM_BUG_ON(!virt_addr_valid(objp));
107815 local_irq_save(flags);
107816 kfree_debugcheck(objp);
107817 c = virt_to_cache(objp);
107818@@ -3981,14 +4000,22 @@ void slabinfo_show_stats(struct seq_file *m, struct kmem_cache *cachep)
107819 }
107820 /* cpu stats */
107821 {
107822- unsigned long allochit = atomic_read(&cachep->allochit);
107823- unsigned long allocmiss = atomic_read(&cachep->allocmiss);
107824- unsigned long freehit = atomic_read(&cachep->freehit);
107825- unsigned long freemiss = atomic_read(&cachep->freemiss);
107826+ unsigned long allochit = atomic_read_unchecked(&cachep->allochit);
107827+ unsigned long allocmiss = atomic_read_unchecked(&cachep->allocmiss);
107828+ unsigned long freehit = atomic_read_unchecked(&cachep->freehit);
107829+ unsigned long freemiss = atomic_read_unchecked(&cachep->freemiss);
107830
107831 seq_printf(m, " : cpustat %6lu %6lu %6lu %6lu",
107832 allochit, allocmiss, freehit, freemiss);
107833 }
107834+#ifdef CONFIG_PAX_MEMORY_SANITIZE
107835+ {
107836+ unsigned long sanitized = atomic_read_unchecked(&cachep->sanitized);
107837+ unsigned long not_sanitized = atomic_read_unchecked(&cachep->not_sanitized);
107838+
107839+ seq_printf(m, " : pax %6lu %6lu", sanitized, not_sanitized);
107840+ }
107841+#endif
107842 #endif
107843 }
107844
107845@@ -4196,13 +4223,69 @@ static const struct file_operations proc_slabstats_operations = {
107846 static int __init slab_proc_init(void)
107847 {
107848 #ifdef CONFIG_DEBUG_SLAB_LEAK
107849- proc_create("slab_allocators", 0, NULL, &proc_slabstats_operations);
107850+ proc_create("slab_allocators", S_IRUSR, NULL, &proc_slabstats_operations);
107851 #endif
107852 return 0;
107853 }
107854 module_init(slab_proc_init);
107855 #endif
107856
107857+bool is_usercopy_object(const void *ptr)
107858+{
107859+ struct page *page;
107860+ struct kmem_cache *cachep;
107861+
107862+ if (ZERO_OR_NULL_PTR(ptr))
107863+ return false;
107864+
107865+ if (!slab_is_available())
107866+ return false;
107867+
107868+ if (!virt_addr_valid(ptr))
107869+ return false;
107870+
107871+ page = virt_to_head_page(ptr);
107872+
107873+ if (!PageSlab(page))
107874+ return false;
107875+
107876+ cachep = page->slab_cache;
107877+ return cachep->flags & SLAB_USERCOPY;
107878+}
107879+
107880+#ifdef CONFIG_PAX_USERCOPY
107881+const char *check_heap_object(const void *ptr, unsigned long n)
107882+{
107883+ struct page *page;
107884+ struct kmem_cache *cachep;
107885+ unsigned int objnr;
107886+ unsigned long offset;
107887+
107888+ if (ZERO_OR_NULL_PTR(ptr))
107889+ return "<null>";
107890+
107891+ if (!virt_addr_valid(ptr))
107892+ return NULL;
107893+
107894+ page = virt_to_head_page(ptr);
107895+
107896+ if (!PageSlab(page))
107897+ return NULL;
107898+
107899+ cachep = page->slab_cache;
107900+ if (!(cachep->flags & SLAB_USERCOPY))
107901+ return cachep->name;
107902+
107903+ objnr = obj_to_index(cachep, page, ptr);
107904+ BUG_ON(objnr >= cachep->num);
107905+ offset = ptr - index_to_obj(cachep, page, objnr) - obj_offset(cachep);
107906+ if (offset <= cachep->object_size && n <= cachep->object_size - offset)
107907+ return NULL;
107908+
107909+ return cachep->name;
107910+}
107911+#endif
107912+
107913 /**
107914 * ksize - get the actual amount of memory allocated for a given object
107915 * @objp: Pointer to the object
107916diff --git a/mm/slab.h b/mm/slab.h
107917index 4c3ac12..7b2e470 100644
107918--- a/mm/slab.h
107919+++ b/mm/slab.h
107920@@ -22,7 +22,7 @@ struct kmem_cache {
107921 unsigned int align; /* Alignment as calculated */
107922 unsigned long flags; /* Active flags on the slab */
107923 const char *name; /* Slab name for sysfs */
107924- int refcount; /* Use counter */
107925+ atomic_t refcount; /* Use counter */
107926 void (*ctor)(void *); /* Called on object slot creation */
107927 struct list_head list; /* List of all slab caches on the system */
107928 };
107929@@ -66,6 +66,20 @@ extern struct list_head slab_caches;
107930 /* The slab cache that manages slab cache information */
107931 extern struct kmem_cache *kmem_cache;
107932
107933+#ifdef CONFIG_PAX_MEMORY_SANITIZE
107934+#ifdef CONFIG_X86_64
107935+#define PAX_MEMORY_SANITIZE_VALUE '\xfe'
107936+#else
107937+#define PAX_MEMORY_SANITIZE_VALUE '\xff'
107938+#endif
107939+enum pax_sanitize_mode {
107940+ PAX_SANITIZE_SLAB_OFF = 0,
107941+ PAX_SANITIZE_SLAB_FAST,
107942+ PAX_SANITIZE_SLAB_FULL,
107943+};
107944+extern enum pax_sanitize_mode pax_sanitize_slab;
107945+#endif
107946+
107947 unsigned long calculate_alignment(unsigned long flags,
107948 unsigned long align, unsigned long size);
107949
107950@@ -114,7 +128,8 @@ static inline unsigned long kmem_cache_flags(unsigned long object_size,
107951
107952 /* Legal flag mask for kmem_cache_create(), for various configurations */
107953 #define SLAB_CORE_FLAGS (SLAB_HWCACHE_ALIGN | SLAB_CACHE_DMA | SLAB_PANIC | \
107954- SLAB_DESTROY_BY_RCU | SLAB_DEBUG_OBJECTS )
107955+ SLAB_DESTROY_BY_RCU | SLAB_DEBUG_OBJECTS | \
107956+ SLAB_USERCOPY | SLAB_NO_SANITIZE)
107957
107958 #if defined(CONFIG_DEBUG_SLAB)
107959 #define SLAB_DEBUG_FLAGS (SLAB_RED_ZONE | SLAB_POISON | SLAB_STORE_USER)
107960@@ -315,6 +330,9 @@ static inline struct kmem_cache *cache_from_obj(struct kmem_cache *s, void *x)
107961 return s;
107962
107963 page = virt_to_head_page(x);
107964+
107965+ BUG_ON(!PageSlab(page));
107966+
107967 cachep = page->slab_cache;
107968 if (slab_equal_or_root(cachep, s))
107969 return cachep;
107970diff --git a/mm/slab_common.c b/mm/slab_common.c
107971index 999bb34..9843aea 100644
107972--- a/mm/slab_common.c
107973+++ b/mm/slab_common.c
107974@@ -25,11 +25,35 @@
107975
107976 #include "slab.h"
107977
107978-enum slab_state slab_state;
107979+enum slab_state slab_state __read_only;
107980 LIST_HEAD(slab_caches);
107981 DEFINE_MUTEX(slab_mutex);
107982 struct kmem_cache *kmem_cache;
107983
107984+#ifdef CONFIG_PAX_MEMORY_SANITIZE
107985+enum pax_sanitize_mode pax_sanitize_slab __read_only = PAX_SANITIZE_SLAB_FAST;
107986+static int __init pax_sanitize_slab_setup(char *str)
107987+{
107988+ if (!str)
107989+ return 0;
107990+
107991+ if (!strcmp(str, "0") || !strcmp(str, "off")) {
107992+ pr_info("PaX slab sanitization: %s\n", "disabled");
107993+ pax_sanitize_slab = PAX_SANITIZE_SLAB_OFF;
107994+ } else if (!strcmp(str, "1") || !strcmp(str, "fast")) {
107995+ pr_info("PaX slab sanitization: %s\n", "fast");
107996+ pax_sanitize_slab = PAX_SANITIZE_SLAB_FAST;
107997+ } else if (!strcmp(str, "full")) {
107998+ pr_info("PaX slab sanitization: %s\n", "full");
107999+ pax_sanitize_slab = PAX_SANITIZE_SLAB_FULL;
108000+ } else
108001+ pr_err("PaX slab sanitization: unsupported option '%s'\n", str);
108002+
108003+ return 0;
108004+}
108005+early_param("pax_sanitize_slab", pax_sanitize_slab_setup);
108006+#endif
108007+
108008 /*
108009 * Set of flags that will prevent slab merging
108010 */
108011@@ -44,7 +68,7 @@ struct kmem_cache *kmem_cache;
108012 * Merge control. If this is set then no merging of slab caches will occur.
108013 * (Could be removed. This was introduced to pacify the merge skeptics.)
108014 */
108015-static int slab_nomerge;
108016+static int slab_nomerge = 1;
108017
108018 static int __init setup_slab_nomerge(char *str)
108019 {
108020@@ -217,7 +241,7 @@ int slab_unmergeable(struct kmem_cache *s)
108021 /*
108022 * We may have set a slab to be unmergeable during bootstrap.
108023 */
108024- if (s->refcount < 0)
108025+ if (atomic_read(&s->refcount) < 0)
108026 return 1;
108027
108028 return 0;
108029@@ -321,7 +345,7 @@ do_kmem_cache_create(const char *name, size_t object_size, size_t size,
108030 if (err)
108031 goto out_free_cache;
108032
108033- s->refcount = 1;
108034+ atomic_set(&s->refcount, 1);
108035 list_add(&s->list, &slab_caches);
108036 out:
108037 if (err)
108038@@ -386,6 +410,13 @@ kmem_cache_create(const char *name, size_t size, size_t align,
108039 */
108040 flags &= CACHE_CREATE_MASK;
108041
108042+#ifdef CONFIG_PAX_MEMORY_SANITIZE
108043+ if (pax_sanitize_slab == PAX_SANITIZE_SLAB_OFF || (flags & SLAB_DESTROY_BY_RCU))
108044+ flags |= SLAB_NO_SANITIZE;
108045+ else if (pax_sanitize_slab == PAX_SANITIZE_SLAB_FULL)
108046+ flags &= ~SLAB_NO_SANITIZE;
108047+#endif
108048+
108049 s = __kmem_cache_alias(name, size, align, flags, ctor);
108050 if (s)
108051 goto out_unlock;
108052@@ -456,7 +487,7 @@ static void do_kmem_cache_release(struct list_head *release,
108053 rcu_barrier();
108054
108055 list_for_each_entry_safe(s, s2, release, list) {
108056-#ifdef SLAB_SUPPORTS_SYSFS
108057+#if defined(SLAB_SUPPORTS_SYSFS) && !defined(CONFIG_GRKERNSEC_PROC_ADD)
108058 sysfs_slab_remove(s);
108059 #else
108060 slab_kmem_cache_release(s);
108061@@ -625,8 +656,7 @@ void kmem_cache_destroy(struct kmem_cache *s)
108062
108063 mutex_lock(&slab_mutex);
108064
108065- s->refcount--;
108066- if (s->refcount)
108067+ if (!atomic_dec_and_test(&s->refcount))
108068 goto out_unlock;
108069
108070 for_each_memcg_cache_safe(c, c2, s) {
108071@@ -691,7 +721,7 @@ void __init create_boot_cache(struct kmem_cache *s, const char *name, size_t siz
108072 panic("Creation of kmalloc slab %s size=%zu failed. Reason %d\n",
108073 name, size, err);
108074
108075- s->refcount = -1; /* Exempt from merging for now */
108076+ atomic_set(&s->refcount, -1); /* Exempt from merging for now */
108077 }
108078
108079 struct kmem_cache *__init create_kmalloc_cache(const char *name, size_t size,
108080@@ -704,7 +734,7 @@ struct kmem_cache *__init create_kmalloc_cache(const char *name, size_t size,
108081
108082 create_boot_cache(s, name, size, flags);
108083 list_add(&s->list, &slab_caches);
108084- s->refcount = 1;
108085+ atomic_set(&s->refcount, 1);
108086 return s;
108087 }
108088
108089@@ -716,6 +746,11 @@ struct kmem_cache *kmalloc_dma_caches[KMALLOC_SHIFT_HIGH + 1];
108090 EXPORT_SYMBOL(kmalloc_dma_caches);
108091 #endif
108092
108093+#ifdef CONFIG_PAX_USERCOPY_SLABS
108094+struct kmem_cache *kmalloc_usercopy_caches[KMALLOC_SHIFT_HIGH + 1];
108095+EXPORT_SYMBOL(kmalloc_usercopy_caches);
108096+#endif
108097+
108098 /*
108099 * Conversion table for small slabs sizes / 8 to the index in the
108100 * kmalloc array. This is necessary for slabs < 192 since we have non power
108101@@ -780,6 +815,13 @@ struct kmem_cache *kmalloc_slab(size_t size, gfp_t flags)
108102 return kmalloc_dma_caches[index];
108103
108104 #endif
108105+
108106+#ifdef CONFIG_PAX_USERCOPY_SLABS
108107+ if (unlikely((flags & GFP_USERCOPY)))
108108+ return kmalloc_usercopy_caches[index];
108109+
108110+#endif
108111+
108112 return kmalloc_caches[index];
108113 }
108114
108115@@ -836,7 +878,7 @@ void __init create_kmalloc_caches(unsigned long flags)
108116 for (i = KMALLOC_SHIFT_LOW; i <= KMALLOC_SHIFT_HIGH; i++) {
108117 if (!kmalloc_caches[i]) {
108118 kmalloc_caches[i] = create_kmalloc_cache(NULL,
108119- 1 << i, flags);
108120+ 1 << i, SLAB_USERCOPY | flags);
108121 }
108122
108123 /*
108124@@ -845,10 +887,10 @@ void __init create_kmalloc_caches(unsigned long flags)
108125 * earlier power of two caches
108126 */
108127 if (KMALLOC_MIN_SIZE <= 32 && !kmalloc_caches[1] && i == 6)
108128- kmalloc_caches[1] = create_kmalloc_cache(NULL, 96, flags);
108129+ kmalloc_caches[1] = create_kmalloc_cache(NULL, 96, SLAB_USERCOPY | flags);
108130
108131 if (KMALLOC_MIN_SIZE <= 64 && !kmalloc_caches[2] && i == 7)
108132- kmalloc_caches[2] = create_kmalloc_cache(NULL, 192, flags);
108133+ kmalloc_caches[2] = create_kmalloc_cache(NULL, 192, SLAB_USERCOPY | flags);
108134 }
108135
108136 /* Kmalloc array is now usable */
108137@@ -881,6 +923,23 @@ void __init create_kmalloc_caches(unsigned long flags)
108138 }
108139 }
108140 #endif
108141+
108142+#ifdef CONFIG_PAX_USERCOPY_SLABS
108143+ for (i = 0; i <= KMALLOC_SHIFT_HIGH; i++) {
108144+ struct kmem_cache *s = kmalloc_caches[i];
108145+
108146+ if (s) {
108147+ int size = kmalloc_size(i);
108148+ char *n = kasprintf(GFP_NOWAIT,
108149+ "usercopy-kmalloc-%d", size);
108150+
108151+ BUG_ON(!n);
108152+ kmalloc_usercopy_caches[i] = create_kmalloc_cache(n,
108153+ size, SLAB_USERCOPY | flags);
108154+ }
108155+ }
108156+#endif
108157+
108158 }
108159 #endif /* !CONFIG_SLOB */
108160
108161@@ -940,6 +999,9 @@ static void print_slabinfo_header(struct seq_file *m)
108162 seq_puts(m, " : globalstat <listallocs> <maxobjs> <grown> <reaped> "
108163 "<error> <maxfreeable> <nodeallocs> <remotefrees> <alienoverflow>");
108164 seq_puts(m, " : cpustat <allochit> <allocmiss> <freehit> <freemiss>");
108165+#ifdef CONFIG_PAX_MEMORY_SANITIZE
108166+ seq_puts(m, " : pax <sanitized> <not_sanitized>");
108167+#endif
108168 #endif
108169 seq_putc(m, '\n');
108170 }
108171@@ -1069,7 +1131,7 @@ static int __init slab_proc_init(void)
108172 module_init(slab_proc_init);
108173 #endif /* CONFIG_SLABINFO */
108174
108175-static __always_inline void *__do_krealloc(const void *p, size_t new_size,
108176+static __always_inline void * __size_overflow(2) __do_krealloc(const void *p, size_t new_size,
108177 gfp_t flags)
108178 {
108179 void *ret;
108180diff --git a/mm/slob.c b/mm/slob.c
108181index 94a7fed..cf3fb1a 100644
108182--- a/mm/slob.c
108183+++ b/mm/slob.c
108184@@ -157,7 +157,7 @@ static void set_slob(slob_t *s, slobidx_t size, slob_t *next)
108185 /*
108186 * Return the size of a slob block.
108187 */
108188-static slobidx_t slob_units(slob_t *s)
108189+static slobidx_t slob_units(const slob_t *s)
108190 {
108191 if (s->units > 0)
108192 return s->units;
108193@@ -167,7 +167,7 @@ static slobidx_t slob_units(slob_t *s)
108194 /*
108195 * Return the next free slob block pointer after this one.
108196 */
108197-static slob_t *slob_next(slob_t *s)
108198+static slob_t *slob_next(const slob_t *s)
108199 {
108200 slob_t *base = (slob_t *)((unsigned long)s & PAGE_MASK);
108201 slobidx_t next;
108202@@ -182,14 +182,14 @@ static slob_t *slob_next(slob_t *s)
108203 /*
108204 * Returns true if s is the last free block in its page.
108205 */
108206-static int slob_last(slob_t *s)
108207+static int slob_last(const slob_t *s)
108208 {
108209 return !((unsigned long)slob_next(s) & ~PAGE_MASK);
108210 }
108211
108212-static void *slob_new_pages(gfp_t gfp, int order, int node)
108213+static struct page *slob_new_pages(gfp_t gfp, unsigned int order, int node)
108214 {
108215- void *page;
108216+ struct page *page;
108217
108218 #ifdef CONFIG_NUMA
108219 if (node != NUMA_NO_NODE)
108220@@ -201,14 +201,18 @@ static void *slob_new_pages(gfp_t gfp, int order, int node)
108221 if (!page)
108222 return NULL;
108223
108224- return page_address(page);
108225+ __SetPageSlab(page);
108226+ return page;
108227 }
108228
108229-static void slob_free_pages(void *b, int order)
108230+static void slob_free_pages(struct page *sp, int order)
108231 {
108232 if (current->reclaim_state)
108233 current->reclaim_state->reclaimed_slab += 1 << order;
108234- free_pages((unsigned long)b, order);
108235+ __ClearPageSlab(sp);
108236+ page_mapcount_reset(sp);
108237+ sp->private = 0;
108238+ __free_pages(sp, order);
108239 }
108240
108241 /*
108242@@ -313,15 +317,15 @@ static void *slob_alloc(size_t size, gfp_t gfp, int align, int node)
108243
108244 /* Not enough space: must allocate a new page */
108245 if (!b) {
108246- b = slob_new_pages(gfp & ~__GFP_ZERO, 0, node);
108247- if (!b)
108248+ sp = slob_new_pages(gfp & ~__GFP_ZERO, 0, node);
108249+ if (!sp)
108250 return NULL;
108251- sp = virt_to_page(b);
108252- __SetPageSlab(sp);
108253+ b = page_address(sp);
108254
108255 spin_lock_irqsave(&slob_lock, flags);
108256 sp->units = SLOB_UNITS(PAGE_SIZE);
108257 sp->freelist = b;
108258+ sp->private = 0;
108259 INIT_LIST_HEAD(&sp->lru);
108260 set_slob(b, SLOB_UNITS(PAGE_SIZE), b + SLOB_UNITS(PAGE_SIZE));
108261 set_slob_page_free(sp, slob_list);
108262@@ -337,7 +341,7 @@ static void *slob_alloc(size_t size, gfp_t gfp, int align, int node)
108263 /*
108264 * slob_free: entry point into the slob allocator.
108265 */
108266-static void slob_free(void *block, int size)
108267+static void slob_free(struct kmem_cache *c, void *block, int size)
108268 {
108269 struct page *sp;
108270 slob_t *prev, *next, *b = (slob_t *)block;
108271@@ -359,12 +363,15 @@ static void slob_free(void *block, int size)
108272 if (slob_page_free(sp))
108273 clear_slob_page_free(sp);
108274 spin_unlock_irqrestore(&slob_lock, flags);
108275- __ClearPageSlab(sp);
108276- page_mapcount_reset(sp);
108277- slob_free_pages(b, 0);
108278+ slob_free_pages(sp, 0);
108279 return;
108280 }
108281
108282+#ifdef CONFIG_PAX_MEMORY_SANITIZE
108283+ if (pax_sanitize_slab && !(c && (c->flags & SLAB_NO_SANITIZE)))
108284+ memset(block, PAX_MEMORY_SANITIZE_VALUE, size);
108285+#endif
108286+
108287 if (!slob_page_free(sp)) {
108288 /* This slob page is about to become partially free. Easy! */
108289 sp->units = units;
108290@@ -424,11 +431,10 @@ out:
108291 */
108292
108293 static __always_inline void *
108294-__do_kmalloc_node(size_t size, gfp_t gfp, int node, unsigned long caller)
108295+__do_kmalloc_node_align(size_t size, gfp_t gfp, int node, unsigned long caller, int align)
108296 {
108297- unsigned int *m;
108298- int align = max_t(size_t, ARCH_KMALLOC_MINALIGN, ARCH_SLAB_MINALIGN);
108299- void *ret;
108300+ slob_t *m;
108301+ void *ret = NULL;
108302
108303 gfp &= gfp_allowed_mask;
108304
108305@@ -442,27 +448,45 @@ __do_kmalloc_node(size_t size, gfp_t gfp, int node, unsigned long caller)
108306
108307 if (!m)
108308 return NULL;
108309- *m = size;
108310+ BUILD_BUG_ON(ARCH_KMALLOC_MINALIGN < 2 * SLOB_UNIT);
108311+ BUILD_BUG_ON(ARCH_SLAB_MINALIGN < 2 * SLOB_UNIT);
108312+ m[0].units = size;
108313+ m[1].units = align;
108314 ret = (void *)m + align;
108315
108316 trace_kmalloc_node(caller, ret,
108317 size, size + align, gfp, node);
108318 } else {
108319 unsigned int order = get_order(size);
108320+ struct page *page;
108321
108322 if (likely(order))
108323 gfp |= __GFP_COMP;
108324- ret = slob_new_pages(gfp, order, node);
108325+ page = slob_new_pages(gfp, order, node);
108326+ if (page) {
108327+ ret = page_address(page);
108328+ page->private = size;
108329+ }
108330
108331 trace_kmalloc_node(caller, ret,
108332 size, PAGE_SIZE << order, gfp, node);
108333 }
108334
108335- kmemleak_alloc(ret, size, 1, gfp);
108336 return ret;
108337 }
108338
108339-void *__kmalloc(size_t size, gfp_t gfp)
108340+static __always_inline void *
108341+__do_kmalloc_node(size_t size, gfp_t gfp, int node, unsigned long caller)
108342+{
108343+ int align = max(ARCH_KMALLOC_MINALIGN, ARCH_SLAB_MINALIGN);
108344+ void *ret = __do_kmalloc_node_align(size, gfp, node, caller, align);
108345+
108346+ if (!ZERO_OR_NULL_PTR(ret))
108347+ kmemleak_alloc(ret, size, 1, gfp);
108348+ return ret;
108349+}
108350+
108351+void * __size_overflow(1) __kmalloc(size_t size, gfp_t gfp)
108352 {
108353 return __do_kmalloc_node(size, gfp, NUMA_NO_NODE, _RET_IP_);
108354 }
108355@@ -491,34 +515,112 @@ void kfree(const void *block)
108356 return;
108357 kmemleak_free(block);
108358
108359+ VM_BUG_ON(!virt_addr_valid(block));
108360 sp = virt_to_page(block);
108361- if (PageSlab(sp)) {
108362+ VM_BUG_ON(!PageSlab(sp));
108363+ if (!sp->private) {
108364 int align = max_t(size_t, ARCH_KMALLOC_MINALIGN, ARCH_SLAB_MINALIGN);
108365- unsigned int *m = (unsigned int *)(block - align);
108366- slob_free(m, *m + align);
108367- } else
108368+ slob_t *m = (slob_t *)(block - align);
108369+ slob_free(NULL, m, m[0].units + align);
108370+ } else {
108371+ __ClearPageSlab(sp);
108372+ page_mapcount_reset(sp);
108373+ sp->private = 0;
108374 __free_pages(sp, compound_order(sp));
108375+ }
108376 }
108377 EXPORT_SYMBOL(kfree);
108378
108379+bool is_usercopy_object(const void *ptr)
108380+{
108381+ if (!slab_is_available())
108382+ return false;
108383+
108384+ // PAX: TODO
108385+
108386+ return false;
108387+}
108388+
108389+#ifdef CONFIG_PAX_USERCOPY
108390+const char *check_heap_object(const void *ptr, unsigned long n)
108391+{
108392+ struct page *page;
108393+ const slob_t *free;
108394+ const void *base;
108395+ unsigned long flags;
108396+
108397+ if (ZERO_OR_NULL_PTR(ptr))
108398+ return "<null>";
108399+
108400+ if (!virt_addr_valid(ptr))
108401+ return NULL;
108402+
108403+ page = virt_to_head_page(ptr);
108404+ if (!PageSlab(page))
108405+ return NULL;
108406+
108407+ if (page->private) {
108408+ base = page;
108409+ if (base <= ptr && n <= page->private - (ptr - base))
108410+ return NULL;
108411+ return "<slob>";
108412+ }
108413+
108414+ /* some tricky double walking to find the chunk */
108415+ spin_lock_irqsave(&slob_lock, flags);
108416+ base = (void *)((unsigned long)ptr & PAGE_MASK);
108417+ free = page->freelist;
108418+
108419+ while (!slob_last(free) && (void *)free <= ptr) {
108420+ base = free + slob_units(free);
108421+ free = slob_next(free);
108422+ }
108423+
108424+ while (base < (void *)free) {
108425+ slobidx_t m = ((slob_t *)base)[0].units, align = ((slob_t *)base)[1].units;
108426+ int size = SLOB_UNIT * SLOB_UNITS(m + align);
108427+ int offset;
108428+
108429+ if (ptr < base + align)
108430+ break;
108431+
108432+ offset = ptr - base - align;
108433+ if (offset >= m) {
108434+ base += size;
108435+ continue;
108436+ }
108437+
108438+ if (n > m - offset)
108439+ break;
108440+
108441+ spin_unlock_irqrestore(&slob_lock, flags);
108442+ return NULL;
108443+ }
108444+
108445+ spin_unlock_irqrestore(&slob_lock, flags);
108446+ return "<slob>";
108447+}
108448+#endif
108449+
108450 /* can't use ksize for kmem_cache_alloc memory, only kmalloc */
108451 size_t ksize(const void *block)
108452 {
108453 struct page *sp;
108454 int align;
108455- unsigned int *m;
108456+ slob_t *m;
108457
108458 BUG_ON(!block);
108459 if (unlikely(block == ZERO_SIZE_PTR))
108460 return 0;
108461
108462 sp = virt_to_page(block);
108463- if (unlikely(!PageSlab(sp)))
108464- return PAGE_SIZE << compound_order(sp);
108465+ VM_BUG_ON(!PageSlab(sp));
108466+ if (sp->private)
108467+ return sp->private;
108468
108469 align = max_t(size_t, ARCH_KMALLOC_MINALIGN, ARCH_SLAB_MINALIGN);
108470- m = (unsigned int *)(block - align);
108471- return SLOB_UNITS(*m) * SLOB_UNIT;
108472+ m = (slob_t *)(block - align);
108473+ return SLOB_UNITS(m[0].units) * SLOB_UNIT;
108474 }
108475 EXPORT_SYMBOL(ksize);
108476
108477@@ -534,23 +636,33 @@ int __kmem_cache_create(struct kmem_cache *c, unsigned long flags)
108478
108479 void *slob_alloc_node(struct kmem_cache *c, gfp_t flags, int node)
108480 {
108481- void *b;
108482+ void *b = NULL;
108483
108484 flags &= gfp_allowed_mask;
108485
108486 lockdep_trace_alloc(flags);
108487
108488+#ifdef CONFIG_PAX_USERCOPY_SLABS
108489+ b = __do_kmalloc_node_align(c->size, flags, node, _RET_IP_, c->align);
108490+#else
108491 if (c->size < PAGE_SIZE) {
108492 b = slob_alloc(c->size, flags, c->align, node);
108493 trace_kmem_cache_alloc_node(_RET_IP_, b, c->object_size,
108494 SLOB_UNITS(c->size) * SLOB_UNIT,
108495 flags, node);
108496 } else {
108497- b = slob_new_pages(flags, get_order(c->size), node);
108498+ struct page *sp;
108499+
108500+ sp = slob_new_pages(flags, get_order(c->size), node);
108501+ if (sp) {
108502+ b = page_address(sp);
108503+ sp->private = c->size;
108504+ }
108505 trace_kmem_cache_alloc_node(_RET_IP_, b, c->object_size,
108506 PAGE_SIZE << get_order(c->size),
108507 flags, node);
108508 }
108509+#endif
108510
108511 if (b && c->ctor)
108512 c->ctor(b);
108513@@ -567,7 +679,7 @@ void *kmem_cache_alloc(struct kmem_cache *cachep, gfp_t flags)
108514 EXPORT_SYMBOL(kmem_cache_alloc);
108515
108516 #ifdef CONFIG_NUMA
108517-void *__kmalloc_node(size_t size, gfp_t gfp, int node)
108518+void * __size_overflow(1) __kmalloc_node(size_t size, gfp_t gfp, int node)
108519 {
108520 return __do_kmalloc_node(size, gfp, node, _RET_IP_);
108521 }
108522@@ -580,12 +692,16 @@ void *kmem_cache_alloc_node(struct kmem_cache *cachep, gfp_t gfp, int node)
108523 EXPORT_SYMBOL(kmem_cache_alloc_node);
108524 #endif
108525
108526-static void __kmem_cache_free(void *b, int size)
108527+static void __kmem_cache_free(struct kmem_cache *c, void *b, int size)
108528 {
108529- if (size < PAGE_SIZE)
108530- slob_free(b, size);
108531+ struct page *sp;
108532+
108533+ sp = virt_to_page(b);
108534+ BUG_ON(!PageSlab(sp));
108535+ if (!sp->private)
108536+ slob_free(c, b, size);
108537 else
108538- slob_free_pages(b, get_order(size));
108539+ slob_free_pages(sp, get_order(size));
108540 }
108541
108542 static void kmem_rcu_free(struct rcu_head *head)
108543@@ -593,22 +709,36 @@ static void kmem_rcu_free(struct rcu_head *head)
108544 struct slob_rcu *slob_rcu = (struct slob_rcu *)head;
108545 void *b = (void *)slob_rcu - (slob_rcu->size - sizeof(struct slob_rcu));
108546
108547- __kmem_cache_free(b, slob_rcu->size);
108548+ __kmem_cache_free(NULL, b, slob_rcu->size);
108549 }
108550
108551 void kmem_cache_free(struct kmem_cache *c, void *b)
108552 {
108553+ int size = c->size;
108554+
108555+#ifdef CONFIG_PAX_USERCOPY_SLABS
108556+ if (size + c->align < PAGE_SIZE) {
108557+ size += c->align;
108558+ b -= c->align;
108559+ }
108560+#endif
108561+
108562 kmemleak_free_recursive(b, c->flags);
108563 if (unlikely(c->flags & SLAB_DESTROY_BY_RCU)) {
108564 struct slob_rcu *slob_rcu;
108565- slob_rcu = b + (c->size - sizeof(struct slob_rcu));
108566- slob_rcu->size = c->size;
108567+ slob_rcu = b + (size - sizeof(struct slob_rcu));
108568+ slob_rcu->size = size;
108569 call_rcu(&slob_rcu->head, kmem_rcu_free);
108570 } else {
108571- __kmem_cache_free(b, c->size);
108572+ __kmem_cache_free(c, b, size);
108573 }
108574
108575+#ifdef CONFIG_PAX_USERCOPY_SLABS
108576+ trace_kfree(_RET_IP_, b);
108577+#else
108578 trace_kmem_cache_free(_RET_IP_, b);
108579+#endif
108580+
108581 }
108582 EXPORT_SYMBOL(kmem_cache_free);
108583
108584diff --git a/mm/slub.c b/mm/slub.c
108585index 82c4737..55c316a 100644
108586--- a/mm/slub.c
108587+++ b/mm/slub.c
108588@@ -198,7 +198,7 @@ struct track {
108589
108590 enum track_item { TRACK_ALLOC, TRACK_FREE };
108591
108592-#ifdef CONFIG_SYSFS
108593+#if defined(CONFIG_SYSFS) && !defined(CONFIG_GRKERNSEC_PROC_ADD)
108594 static int sysfs_slab_add(struct kmem_cache *);
108595 static int sysfs_slab_alias(struct kmem_cache *, const char *);
108596 static void memcg_propagate_slab_attrs(struct kmem_cache *s);
108597@@ -556,7 +556,7 @@ static void print_track(const char *s, struct track *t)
108598 if (!t->addr)
108599 return;
108600
108601- pr_err("INFO: %s in %pS age=%lu cpu=%u pid=%d\n",
108602+ pr_err("INFO: %s in %pA age=%lu cpu=%u pid=%d\n",
108603 s, (void *)t->addr, jiffies - t->when, t->cpu, t->pid);
108604 #ifdef CONFIG_STACKTRACE
108605 {
108606@@ -2709,6 +2709,14 @@ static __always_inline void slab_free(struct kmem_cache *s,
108607
108608 slab_free_hook(s, x);
108609
108610+#ifdef CONFIG_PAX_MEMORY_SANITIZE
108611+ if (!(s->flags & SLAB_NO_SANITIZE)) {
108612+ memset(x, PAX_MEMORY_SANITIZE_VALUE, s->object_size);
108613+ if (s->ctor)
108614+ s->ctor(x);
108615+ }
108616+#endif
108617+
108618 redo:
108619 /*
108620 * Determine the currently cpus per cpu slab.
108621@@ -3050,6 +3058,9 @@ static int calculate_sizes(struct kmem_cache *s, int forced_order)
108622 s->inuse = size;
108623
108624 if (((flags & (SLAB_DESTROY_BY_RCU | SLAB_POISON)) ||
108625+#ifdef CONFIG_PAX_MEMORY_SANITIZE
108626+ (!(flags & SLAB_NO_SANITIZE)) ||
108627+#endif
108628 s->ctor)) {
108629 /*
108630 * Relocate free pointer after the object if it is not
108631@@ -3304,7 +3315,7 @@ static int __init setup_slub_min_objects(char *str)
108632
108633 __setup("slub_min_objects=", setup_slub_min_objects);
108634
108635-void *__kmalloc(size_t size, gfp_t flags)
108636+void * __size_overflow(1) __kmalloc(size_t size, gfp_t flags)
108637 {
108638 struct kmem_cache *s;
108639 void *ret;
108640@@ -3342,7 +3353,7 @@ static void *kmalloc_large_node(size_t size, gfp_t flags, int node)
108641 return ptr;
108642 }
108643
108644-void *__kmalloc_node(size_t size, gfp_t flags, int node)
108645+void * __size_overflow(1) __kmalloc_node(size_t size, gfp_t flags, int node)
108646 {
108647 struct kmem_cache *s;
108648 void *ret;
108649@@ -3390,6 +3401,59 @@ static size_t __ksize(const void *object)
108650 return slab_ksize(page->slab_cache);
108651 }
108652
108653+bool is_usercopy_object(const void *ptr)
108654+{
108655+ struct page *page;
108656+ struct kmem_cache *s;
108657+
108658+ if (ZERO_OR_NULL_PTR(ptr))
108659+ return false;
108660+
108661+ if (!slab_is_available())
108662+ return false;
108663+
108664+ if (!virt_addr_valid(ptr))
108665+ return false;
108666+
108667+ page = virt_to_head_page(ptr);
108668+
108669+ if (!PageSlab(page))
108670+ return false;
108671+
108672+ s = page->slab_cache;
108673+ return s->flags & SLAB_USERCOPY;
108674+}
108675+
108676+#ifdef CONFIG_PAX_USERCOPY
108677+const char *check_heap_object(const void *ptr, unsigned long n)
108678+{
108679+ struct page *page;
108680+ struct kmem_cache *s;
108681+ unsigned long offset;
108682+
108683+ if (ZERO_OR_NULL_PTR(ptr))
108684+ return "<null>";
108685+
108686+ if (!virt_addr_valid(ptr))
108687+ return NULL;
108688+
108689+ page = virt_to_head_page(ptr);
108690+
108691+ if (!PageSlab(page))
108692+ return NULL;
108693+
108694+ s = page->slab_cache;
108695+ if (!(s->flags & SLAB_USERCOPY))
108696+ return s->name;
108697+
108698+ offset = (ptr - page_address(page)) % s->size;
108699+ if (offset <= s->object_size && n <= s->object_size - offset)
108700+ return NULL;
108701+
108702+ return s->name;
108703+}
108704+#endif
108705+
108706 size_t ksize(const void *object)
108707 {
108708 size_t size = __ksize(object);
108709@@ -3410,6 +3474,7 @@ void kfree(const void *x)
108710 if (unlikely(ZERO_OR_NULL_PTR(x)))
108711 return;
108712
108713+ VM_BUG_ON(!virt_addr_valid(x));
108714 page = virt_to_head_page(x);
108715 if (unlikely(!PageSlab(page))) {
108716 BUG_ON(!PageCompound(page));
108717@@ -3726,7 +3791,7 @@ __kmem_cache_alias(const char *name, size_t size, size_t align,
108718
108719 s = find_mergeable(size, align, flags, name, ctor);
108720 if (s) {
108721- s->refcount++;
108722+ atomic_inc(&s->refcount);
108723
108724 /*
108725 * Adjust the object sizes so that we clear
108726@@ -3742,7 +3807,7 @@ __kmem_cache_alias(const char *name, size_t size, size_t align,
108727 }
108728
108729 if (sysfs_slab_alias(s, name)) {
108730- s->refcount--;
108731+ atomic_dec(&s->refcount);
108732 s = NULL;
108733 }
108734 }
108735@@ -3859,7 +3924,7 @@ void *__kmalloc_node_track_caller(size_t size, gfp_t gfpflags,
108736 }
108737 #endif
108738
108739-#ifdef CONFIG_SYSFS
108740+#if defined(CONFIG_SYSFS) && !defined(CONFIG_GRKERNSEC_PROC_ADD)
108741 static int count_inuse(struct page *page)
108742 {
108743 return page->inuse;
108744@@ -4140,7 +4205,11 @@ static int list_locations(struct kmem_cache *s, char *buf,
108745 len += sprintf(buf + len, "%7ld ", l->count);
108746
108747 if (l->addr)
108748+#ifdef CONFIG_GRKERNSEC_HIDESYM
108749+ len += sprintf(buf + len, "%pS", NULL);
108750+#else
108751 len += sprintf(buf + len, "%pS", (void *)l->addr);
108752+#endif
108753 else
108754 len += sprintf(buf + len, "<not-available>");
108755
108756@@ -4238,12 +4307,12 @@ static void __init resiliency_test(void)
108757 validate_slab_cache(kmalloc_caches[9]);
108758 }
108759 #else
108760-#ifdef CONFIG_SYSFS
108761+#if defined(CONFIG_SYSFS) && !defined(CONFIG_GRKERNSEC_PROC_ADD)
108762 static void resiliency_test(void) {};
108763 #endif
108764 #endif
108765
108766-#ifdef CONFIG_SYSFS
108767+#if defined(CONFIG_SYSFS) && !defined(CONFIG_GRKERNSEC_PROC_ADD)
108768 enum slab_stat_type {
108769 SL_ALL, /* All slabs */
108770 SL_PARTIAL, /* Only partially allocated slabs */
108771@@ -4480,13 +4549,17 @@ static ssize_t ctor_show(struct kmem_cache *s, char *buf)
108772 {
108773 if (!s->ctor)
108774 return 0;
108775+#ifdef CONFIG_GRKERNSEC_HIDESYM
108776+ return sprintf(buf, "%pS\n", NULL);
108777+#else
108778 return sprintf(buf, "%pS\n", s->ctor);
108779+#endif
108780 }
108781 SLAB_ATTR_RO(ctor);
108782
108783 static ssize_t aliases_show(struct kmem_cache *s, char *buf)
108784 {
108785- return sprintf(buf, "%d\n", s->refcount < 0 ? 0 : s->refcount - 1);
108786+ return sprintf(buf, "%d\n", atomic_read(&s->refcount) < 0 ? 0 : atomic_read(&s->refcount) - 1);
108787 }
108788 SLAB_ATTR_RO(aliases);
108789
108790@@ -4574,6 +4647,22 @@ static ssize_t cache_dma_show(struct kmem_cache *s, char *buf)
108791 SLAB_ATTR_RO(cache_dma);
108792 #endif
108793
108794+#ifdef CONFIG_PAX_USERCOPY_SLABS
108795+static ssize_t usercopy_show(struct kmem_cache *s, char *buf)
108796+{
108797+ return sprintf(buf, "%d\n", !!(s->flags & SLAB_USERCOPY));
108798+}
108799+SLAB_ATTR_RO(usercopy);
108800+#endif
108801+
108802+#ifdef CONFIG_PAX_MEMORY_SANITIZE
108803+static ssize_t sanitize_show(struct kmem_cache *s, char *buf)
108804+{
108805+ return sprintf(buf, "%d\n", !(s->flags & SLAB_NO_SANITIZE));
108806+}
108807+SLAB_ATTR_RO(sanitize);
108808+#endif
108809+
108810 static ssize_t destroy_by_rcu_show(struct kmem_cache *s, char *buf)
108811 {
108812 return sprintf(buf, "%d\n", !!(s->flags & SLAB_DESTROY_BY_RCU));
108813@@ -4629,7 +4718,7 @@ static ssize_t trace_store(struct kmem_cache *s, const char *buf,
108814 * as well as cause other issues like converting a mergeable
108815 * cache into an umergeable one.
108816 */
108817- if (s->refcount > 1)
108818+ if (atomic_read(&s->refcount) > 1)
108819 return -EINVAL;
108820
108821 s->flags &= ~SLAB_TRACE;
108822@@ -4749,7 +4838,7 @@ static ssize_t failslab_show(struct kmem_cache *s, char *buf)
108823 static ssize_t failslab_store(struct kmem_cache *s, const char *buf,
108824 size_t length)
108825 {
108826- if (s->refcount > 1)
108827+ if (atomic_read(&s->refcount) > 1)
108828 return -EINVAL;
108829
108830 s->flags &= ~SLAB_FAILSLAB;
108831@@ -4916,6 +5005,12 @@ static struct attribute *slab_attrs[] = {
108832 #ifdef CONFIG_ZONE_DMA
108833 &cache_dma_attr.attr,
108834 #endif
108835+#ifdef CONFIG_PAX_USERCOPY_SLABS
108836+ &usercopy_attr.attr,
108837+#endif
108838+#ifdef CONFIG_PAX_MEMORY_SANITIZE
108839+ &sanitize_attr.attr,
108840+#endif
108841 #ifdef CONFIG_NUMA
108842 &remote_node_defrag_ratio_attr.attr,
108843 #endif
108844@@ -5157,6 +5252,7 @@ static char *create_unique_id(struct kmem_cache *s)
108845 return name;
108846 }
108847
108848+#if defined(CONFIG_SYSFS) && !defined(CONFIG_GRKERNSEC_PROC_ADD)
108849 static int sysfs_slab_add(struct kmem_cache *s)
108850 {
108851 int err;
108852@@ -5230,6 +5326,7 @@ void sysfs_slab_remove(struct kmem_cache *s)
108853 kobject_del(&s->kobj);
108854 kobject_put(&s->kobj);
108855 }
108856+#endif
108857
108858 /*
108859 * Need to buffer aliases during bootup until sysfs becomes
108860@@ -5243,6 +5340,7 @@ struct saved_alias {
108861
108862 static struct saved_alias *alias_list;
108863
108864+#if defined(CONFIG_SYSFS) && !defined(CONFIG_GRKERNSEC_PROC_ADD)
108865 static int sysfs_slab_alias(struct kmem_cache *s, const char *name)
108866 {
108867 struct saved_alias *al;
108868@@ -5265,6 +5363,7 @@ static int sysfs_slab_alias(struct kmem_cache *s, const char *name)
108869 alias_list = al;
108870 return 0;
108871 }
108872+#endif
108873
108874 static int __init slab_sysfs_init(void)
108875 {
108876diff --git a/mm/sparse-vmemmap.c b/mm/sparse-vmemmap.c
108877index 4cba9c2..b4f9fcc 100644
108878--- a/mm/sparse-vmemmap.c
108879+++ b/mm/sparse-vmemmap.c
108880@@ -131,7 +131,7 @@ pud_t * __meminit vmemmap_pud_populate(pgd_t *pgd, unsigned long addr, int node)
108881 void *p = vmemmap_alloc_block(PAGE_SIZE, node);
108882 if (!p)
108883 return NULL;
108884- pud_populate(&init_mm, pud, p);
108885+ pud_populate_kernel(&init_mm, pud, p);
108886 }
108887 return pud;
108888 }
108889@@ -143,7 +143,7 @@ pgd_t * __meminit vmemmap_pgd_populate(unsigned long addr, int node)
108890 void *p = vmemmap_alloc_block(PAGE_SIZE, node);
108891 if (!p)
108892 return NULL;
108893- pgd_populate(&init_mm, pgd, p);
108894+ pgd_populate_kernel(&init_mm, pgd, p);
108895 }
108896 return pgd;
108897 }
108898diff --git a/mm/sparse.c b/mm/sparse.c
108899index d1b48b6..6e8590e 100644
108900--- a/mm/sparse.c
108901+++ b/mm/sparse.c
108902@@ -750,7 +750,7 @@ static void clear_hwpoisoned_pages(struct page *memmap, int nr_pages)
108903
108904 for (i = 0; i < PAGES_PER_SECTION; i++) {
108905 if (PageHWPoison(&memmap[i])) {
108906- atomic_long_sub(1, &num_poisoned_pages);
108907+ atomic_long_sub_unchecked(1, &num_poisoned_pages);
108908 ClearPageHWPoison(&memmap[i]);
108909 }
108910 }
108911diff --git a/mm/swap.c b/mm/swap.c
108912index cd3a5e6..40c0c8f 100644
108913--- a/mm/swap.c
108914+++ b/mm/swap.c
108915@@ -31,6 +31,7 @@
108916 #include <linux/memcontrol.h>
108917 #include <linux/gfp.h>
108918 #include <linux/uio.h>
108919+#include <linux/hugetlb.h>
108920
108921 #include "internal.h"
108922
108923@@ -77,6 +78,8 @@ static void __put_compound_page(struct page *page)
108924
108925 __page_cache_release(page);
108926 dtor = get_compound_page_dtor(page);
108927+ if (!PageHuge(page))
108928+ BUG_ON(dtor != free_compound_page);
108929 (*dtor)(page);
108930 }
108931
108932diff --git a/mm/swapfile.c b/mm/swapfile.c
108933index 63f55cc..31874e6 100644
108934--- a/mm/swapfile.c
108935+++ b/mm/swapfile.c
108936@@ -84,7 +84,7 @@ static DEFINE_MUTEX(swapon_mutex);
108937
108938 static DECLARE_WAIT_QUEUE_HEAD(proc_poll_wait);
108939 /* Activity counter to indicate that a swapon or swapoff has occurred */
108940-static atomic_t proc_poll_event = ATOMIC_INIT(0);
108941+static atomic_unchecked_t proc_poll_event = ATOMIC_INIT(0);
108942
108943 static inline unsigned char swap_count(unsigned char ent)
108944 {
108945@@ -1944,7 +1944,7 @@ SYSCALL_DEFINE1(swapoff, const char __user *, specialfile)
108946 spin_unlock(&swap_lock);
108947
108948 err = 0;
108949- atomic_inc(&proc_poll_event);
108950+ atomic_inc_unchecked(&proc_poll_event);
108951 wake_up_interruptible(&proc_poll_wait);
108952
108953 out_dput:
108954@@ -1961,8 +1961,8 @@ static unsigned swaps_poll(struct file *file, poll_table *wait)
108955
108956 poll_wait(file, &proc_poll_wait, wait);
108957
108958- if (seq->poll_event != atomic_read(&proc_poll_event)) {
108959- seq->poll_event = atomic_read(&proc_poll_event);
108960+ if (seq->poll_event != atomic_read_unchecked(&proc_poll_event)) {
108961+ seq->poll_event = atomic_read_unchecked(&proc_poll_event);
108962 return POLLIN | POLLRDNORM | POLLERR | POLLPRI;
108963 }
108964
108965@@ -2060,7 +2060,7 @@ static int swaps_open(struct inode *inode, struct file *file)
108966 return ret;
108967
108968 seq = file->private_data;
108969- seq->poll_event = atomic_read(&proc_poll_event);
108970+ seq->poll_event = atomic_read_unchecked(&proc_poll_event);
108971 return 0;
108972 }
108973
108974@@ -2520,7 +2520,7 @@ SYSCALL_DEFINE2(swapon, const char __user *, specialfile, int, swap_flags)
108975 (frontswap_map) ? "FS" : "");
108976
108977 mutex_unlock(&swapon_mutex);
108978- atomic_inc(&proc_poll_event);
108979+ atomic_inc_unchecked(&proc_poll_event);
108980 wake_up_interruptible(&proc_poll_wait);
108981
108982 if (S_ISREG(inode->i_mode))
108983diff --git a/mm/util.c b/mm/util.c
108984index 3981ae9..28b585b 100644
108985--- a/mm/util.c
108986+++ b/mm/util.c
108987@@ -233,6 +233,12 @@ struct task_struct *task_of_stack(struct task_struct *task,
108988 void arch_pick_mmap_layout(struct mm_struct *mm)
108989 {
108990 mm->mmap_base = TASK_UNMAPPED_BASE;
108991+
108992+#ifdef CONFIG_PAX_RANDMMAP
108993+ if (mm->pax_flags & MF_PAX_RANDMMAP)
108994+ mm->mmap_base += mm->delta_mmap;
108995+#endif
108996+
108997 mm->get_unmapped_area = arch_get_unmapped_area;
108998 }
108999 #endif
109000@@ -403,6 +409,9 @@ int get_cmdline(struct task_struct *task, char *buffer, int buflen)
109001 if (!mm->arg_end)
109002 goto out_mm; /* Shh! No looking before we're done */
109003
109004+ if (gr_acl_handle_procpidmem(task))
109005+ goto out_mm;
109006+
109007 len = mm->arg_end - mm->arg_start;
109008
109009 if (len > buflen)
109010diff --git a/mm/vmalloc.c b/mm/vmalloc.c
109011index 49abccf..7bd1931 100644
109012--- a/mm/vmalloc.c
109013+++ b/mm/vmalloc.c
109014@@ -39,20 +39,65 @@ struct vfree_deferred {
109015 struct work_struct wq;
109016 };
109017 static DEFINE_PER_CPU(struct vfree_deferred, vfree_deferred);
109018+static DEFINE_PER_CPU(struct vfree_deferred, vunmap_deferred);
109019+
109020+#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
109021+struct stack_deferred_llist {
109022+ struct llist_head list;
109023+ void *stack;
109024+ void *lowmem_stack;
109025+};
109026+
109027+struct stack_deferred {
109028+ struct stack_deferred_llist list;
109029+ struct work_struct wq;
109030+};
109031+
109032+static DEFINE_PER_CPU(struct stack_deferred, stack_deferred);
109033+#endif
109034
109035 static void __vunmap(const void *, int);
109036
109037-static void free_work(struct work_struct *w)
109038+static void vfree_work(struct work_struct *w)
109039 {
109040 struct vfree_deferred *p = container_of(w, struct vfree_deferred, wq);
109041 struct llist_node *llnode = llist_del_all(&p->list);
109042 while (llnode) {
109043- void *p = llnode;
109044+ void *x = llnode;
109045 llnode = llist_next(llnode);
109046- __vunmap(p, 1);
109047+ __vunmap(x, 1);
109048 }
109049 }
109050
109051+static void vunmap_work(struct work_struct *w)
109052+{
109053+ struct vfree_deferred *p = container_of(w, struct vfree_deferred, wq);
109054+ struct llist_node *llnode = llist_del_all(&p->list);
109055+ while (llnode) {
109056+ void *x = llnode;
109057+ llnode = llist_next(llnode);
109058+ __vunmap(x, 0);
109059+ }
109060+}
109061+
109062+#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
109063+static void unmap_work(struct work_struct *w)
109064+{
109065+ struct stack_deferred *p = container_of(w, struct stack_deferred, wq);
109066+ struct llist_node *llnode = llist_del_all(&p->list.list);
109067+ while (llnode) {
109068+ struct stack_deferred_llist *x =
109069+ llist_entry((struct llist_head *)llnode,
109070+ struct stack_deferred_llist, list);
109071+ void *stack = ACCESS_ONCE(x->stack);
109072+ void *lowmem_stack = ACCESS_ONCE(x->lowmem_stack);
109073+ llnode = llist_next(llnode);
109074+ __vunmap(stack, 0);
109075+ free_kmem_pages((unsigned long)lowmem_stack, THREAD_SIZE_ORDER);
109076+ }
109077+}
109078+#endif
109079+
109080 /*** Page table manipulation functions ***/
109081
109082 static void vunmap_pte_range(pmd_t *pmd, unsigned long addr, unsigned long end)
109083@@ -61,8 +106,19 @@ static void vunmap_pte_range(pmd_t *pmd, unsigned long addr, unsigned long end)
109084
109085 pte = pte_offset_kernel(pmd, addr);
109086 do {
109087- pte_t ptent = ptep_get_and_clear(&init_mm, addr, pte);
109088- WARN_ON(!pte_none(ptent) && !pte_present(ptent));
109089+
109090+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
109091+ if ((unsigned long)MODULES_EXEC_VADDR <= addr && addr < (unsigned long)MODULES_EXEC_END) {
109092+ BUG_ON(!pte_exec(*pte));
109093+ set_pte_at(&init_mm, addr, pte, pfn_pte(__pa(addr) >> PAGE_SHIFT, PAGE_KERNEL_EXEC));
109094+ continue;
109095+ }
109096+#endif
109097+
109098+ {
109099+ pte_t ptent = ptep_get_and_clear(&init_mm, addr, pte);
109100+ WARN_ON(!pte_none(ptent) && !pte_present(ptent));
109101+ }
109102 } while (pte++, addr += PAGE_SIZE, addr != end);
109103 }
109104
109105@@ -122,16 +178,29 @@ static int vmap_pte_range(pmd_t *pmd, unsigned long addr,
109106 pte = pte_alloc_kernel(pmd, addr);
109107 if (!pte)
109108 return -ENOMEM;
109109+
109110+ pax_open_kernel();
109111 do {
109112 struct page *page = pages[*nr];
109113
109114- if (WARN_ON(!pte_none(*pte)))
109115+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
109116+ if (pgprot_val(prot) & _PAGE_NX)
109117+#endif
109118+
109119+ if (!pte_none(*pte)) {
109120+ pax_close_kernel();
109121+ WARN_ON(1);
109122 return -EBUSY;
109123- if (WARN_ON(!page))
109124+ }
109125+ if (!page) {
109126+ pax_close_kernel();
109127+ WARN_ON(1);
109128 return -ENOMEM;
109129+ }
109130 set_pte_at(&init_mm, addr, pte, mk_pte(page, prot));
109131 (*nr)++;
109132 } while (pte++, addr += PAGE_SIZE, addr != end);
109133+ pax_close_kernel();
109134 return 0;
109135 }
109136
109137@@ -141,7 +210,7 @@ static int vmap_pmd_range(pud_t *pud, unsigned long addr,
109138 pmd_t *pmd;
109139 unsigned long next;
109140
109141- pmd = pmd_alloc(&init_mm, pud, addr);
109142+ pmd = pmd_alloc_kernel(&init_mm, pud, addr);
109143 if (!pmd)
109144 return -ENOMEM;
109145 do {
109146@@ -158,7 +227,7 @@ static int vmap_pud_range(pgd_t *pgd, unsigned long addr,
109147 pud_t *pud;
109148 unsigned long next;
109149
109150- pud = pud_alloc(&init_mm, pgd, addr);
109151+ pud = pud_alloc_kernel(&init_mm, pgd, addr);
109152 if (!pud)
109153 return -ENOMEM;
109154 do {
109155@@ -218,6 +287,12 @@ int is_vmalloc_or_module_addr(const void *x)
109156 if (addr >= MODULES_VADDR && addr < MODULES_END)
109157 return 1;
109158 #endif
109159+
109160+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
109161+ if (x >= (const void *)MODULES_EXEC_VADDR && x < (const void *)MODULES_EXEC_END)
109162+ return 1;
109163+#endif
109164+
109165 return is_vmalloc_addr(x);
109166 }
109167
109168@@ -238,8 +313,14 @@ struct page *vmalloc_to_page(const void *vmalloc_addr)
109169
109170 if (!pgd_none(*pgd)) {
109171 pud_t *pud = pud_offset(pgd, addr);
109172+#ifdef CONFIG_X86
109173+ if (!pud_large(*pud))
109174+#endif
109175 if (!pud_none(*pud)) {
109176 pmd_t *pmd = pmd_offset(pud, addr);
109177+#ifdef CONFIG_X86
109178+ if (!pmd_large(*pmd))
109179+#endif
109180 if (!pmd_none(*pmd)) {
109181 pte_t *ptep, pte;
109182
109183@@ -341,7 +422,7 @@ static void purge_vmap_area_lazy(void);
109184 * Allocate a region of KVA of the specified size and alignment, within the
109185 * vstart and vend.
109186 */
109187-static struct vmap_area *alloc_vmap_area(unsigned long size,
109188+static struct vmap_area * __size_overflow(1) alloc_vmap_area(unsigned long size,
109189 unsigned long align,
109190 unsigned long vstart, unsigned long vend,
109191 int node, gfp_t gfp_mask)
109192@@ -1182,13 +1263,27 @@ void __init vmalloc_init(void)
109193 for_each_possible_cpu(i) {
109194 struct vmap_block_queue *vbq;
109195 struct vfree_deferred *p;
109196+#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
109197+ struct stack_deferred *p2;
109198+#endif
109199
109200 vbq = &per_cpu(vmap_block_queue, i);
109201 spin_lock_init(&vbq->lock);
109202 INIT_LIST_HEAD(&vbq->free);
109203+
109204 p = &per_cpu(vfree_deferred, i);
109205 init_llist_head(&p->list);
109206- INIT_WORK(&p->wq, free_work);
109207+ INIT_WORK(&p->wq, vfree_work);
109208+
109209+ p = &per_cpu(vunmap_deferred, i);
109210+ init_llist_head(&p->list);
109211+ INIT_WORK(&p->wq, vunmap_work);
109212+
109213+#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
109214+ p2 = &per_cpu(stack_deferred, i);
109215+ init_llist_head(&p2->list.list);
109216+ INIT_WORK(&p2->wq, unmap_work);
109217+#endif
109218 }
109219
109220 /* Import existing vmlist entries. */
109221@@ -1313,6 +1408,16 @@ static struct vm_struct *__get_vm_area_node(unsigned long size,
109222 struct vm_struct *area;
109223
109224 BUG_ON(in_interrupt());
109225+
109226+#if defined(CONFIG_X86) && defined(CONFIG_PAX_KERNEXEC)
109227+ if (flags & VM_KERNEXEC) {
109228+ if (start != VMALLOC_START || end != VMALLOC_END)
109229+ return NULL;
109230+ start = (unsigned long)MODULES_EXEC_VADDR;
109231+ end = (unsigned long)MODULES_EXEC_END;
109232+ }
109233+#endif
109234+
109235 if (flags & VM_IOREMAP)
109236 align = 1ul << clamp(fls(size), PAGE_SHIFT, IOREMAP_MAX_ORDER);
109237
109238@@ -1510,13 +1615,36 @@ EXPORT_SYMBOL(vfree);
109239 */
109240 void vunmap(const void *addr)
109241 {
109242- BUG_ON(in_interrupt());
109243- might_sleep();
109244- if (addr)
109245+ if (!addr)
109246+ return;
109247+ if (unlikely(in_interrupt())) {
109248+ struct vfree_deferred *p = this_cpu_ptr(&vunmap_deferred);
109249+ if (llist_add((struct llist_node *)addr, &p->list))
109250+ schedule_work(&p->wq);
109251+ } else {
109252+ might_sleep();
109253 __vunmap(addr, 0);
109254+ }
109255 }
109256 EXPORT_SYMBOL(vunmap);
109257
109258+#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
109259+void unmap_process_stacks(struct task_struct *task)
109260+{
109261+ if (unlikely(in_interrupt())) {
109262+ struct stack_deferred *p = this_cpu_ptr(&stack_deferred);
109263+ struct stack_deferred_llist *list = task->stack;
109264+ list->stack = task->stack;
109265+ list->lowmem_stack = task->lowmem_stack;
109266+ if (llist_add((struct llist_node *)&list->list, &p->list.list))
109267+ schedule_work(&p->wq);
109268+ } else {
109269+ __vunmap(task->stack, 0);
109270+ free_kmem_pages((unsigned long)task->lowmem_stack, THREAD_SIZE_ORDER);
109271+ }
109272+}
109273+#endif
109274+
109275 /**
109276 * vmap - map an array of pages into virtually contiguous space
109277 * @pages: array of page pointers
109278@@ -1537,6 +1665,11 @@ void *vmap(struct page **pages, unsigned int count,
109279 if (count > totalram_pages)
109280 return NULL;
109281
109282+#if defined(CONFIG_X86) && defined(CONFIG_PAX_KERNEXEC)
109283+ if (!(pgprot_val(prot) & _PAGE_NX))
109284+ flags |= VM_KERNEXEC;
109285+#endif
109286+
109287 area = get_vm_area_caller((count << PAGE_SHIFT), flags,
109288 __builtin_return_address(0));
109289 if (!area)
109290@@ -1641,6 +1774,14 @@ void *__vmalloc_node_range(unsigned long size, unsigned long align,
109291 if (!size || (size >> PAGE_SHIFT) > totalram_pages)
109292 goto fail;
109293
109294+#if defined(CONFIG_X86) && defined(CONFIG_PAX_KERNEXEC)
109295+ if (!(pgprot_val(prot) & _PAGE_NX)) {
109296+ vm_flags |= VM_KERNEXEC;
109297+ start = VMALLOC_START;
109298+ end = VMALLOC_END;
109299+ }
109300+#endif
109301+
109302 area = __get_vm_area_node(size, align, VM_ALLOC | VM_UNINITIALIZED |
109303 vm_flags, start, end, node, gfp_mask, caller);
109304 if (!area)
109305@@ -1817,10 +1958,9 @@ EXPORT_SYMBOL(vzalloc_node);
109306 * For tight control over page level allocator and protection flags
109307 * use __vmalloc() instead.
109308 */
109309-
109310 void *vmalloc_exec(unsigned long size)
109311 {
109312- return __vmalloc_node(size, 1, GFP_KERNEL | __GFP_HIGHMEM, PAGE_KERNEL_EXEC,
109313+ return __vmalloc_node(size, 1, GFP_KERNEL | __GFP_HIGHMEM | __GFP_ZERO, PAGE_KERNEL_EXEC,
109314 NUMA_NO_NODE, __builtin_return_address(0));
109315 }
109316
109317@@ -2127,6 +2267,8 @@ int remap_vmalloc_range_partial(struct vm_area_struct *vma, unsigned long uaddr,
109318 {
109319 struct vm_struct *area;
109320
109321+ BUG_ON(vma->vm_mirror);
109322+
109323 size = PAGE_ALIGN(size);
109324
109325 if (!PAGE_ALIGNED(uaddr) || !PAGE_ALIGNED(kaddr))
109326@@ -2609,7 +2751,11 @@ static int s_show(struct seq_file *m, void *p)
109327 v->addr, v->addr + v->size, v->size);
109328
109329 if (v->caller)
109330+#ifdef CONFIG_GRKERNSEC_HIDESYM
109331+ seq_printf(m, " %pK", v->caller);
109332+#else
109333 seq_printf(m, " %pS", v->caller);
109334+#endif
109335
109336 if (v->nr_pages)
109337 seq_printf(m, " pages=%d", v->nr_pages);
109338diff --git a/mm/vmstat.c b/mm/vmstat.c
109339index 4f5cd97..9fb715a 100644
109340--- a/mm/vmstat.c
109341+++ b/mm/vmstat.c
109342@@ -27,6 +27,7 @@
109343 #include <linux/mm_inline.h>
109344 #include <linux/page_ext.h>
109345 #include <linux/page_owner.h>
109346+#include <linux/grsecurity.h>
109347
109348 #include "internal.h"
109349
109350@@ -86,7 +87,7 @@ void vm_events_fold_cpu(int cpu)
109351 *
109352 * vm_stat contains the global counters
109353 */
109354-atomic_long_t vm_stat[NR_VM_ZONE_STAT_ITEMS] __cacheline_aligned_in_smp;
109355+atomic_long_unchecked_t vm_stat[NR_VM_ZONE_STAT_ITEMS] __cacheline_aligned_in_smp;
109356 EXPORT_SYMBOL(vm_stat);
109357
109358 #ifdef CONFIG_SMP
109359@@ -438,7 +439,7 @@ static int fold_diff(int *diff)
109360
109361 for (i = 0; i < NR_VM_ZONE_STAT_ITEMS; i++)
109362 if (diff[i]) {
109363- atomic_long_add(diff[i], &vm_stat[i]);
109364+ atomic_long_add_unchecked(diff[i], &vm_stat[i]);
109365 changes++;
109366 }
109367 return changes;
109368@@ -476,7 +477,7 @@ static int refresh_cpu_vm_stats(void)
109369 v = this_cpu_xchg(p->vm_stat_diff[i], 0);
109370 if (v) {
109371
109372- atomic_long_add(v, &zone->vm_stat[i]);
109373+ atomic_long_add_unchecked(v, &zone->vm_stat[i]);
109374 global_diff[i] += v;
109375 #ifdef CONFIG_NUMA
109376 /* 3 seconds idle till flush */
109377@@ -540,7 +541,7 @@ void cpu_vm_stats_fold(int cpu)
109378
109379 v = p->vm_stat_diff[i];
109380 p->vm_stat_diff[i] = 0;
109381- atomic_long_add(v, &zone->vm_stat[i]);
109382+ atomic_long_add_unchecked(v, &zone->vm_stat[i]);
109383 global_diff[i] += v;
109384 }
109385 }
109386@@ -560,8 +561,8 @@ void drain_zonestat(struct zone *zone, struct per_cpu_pageset *pset)
109387 if (pset->vm_stat_diff[i]) {
109388 int v = pset->vm_stat_diff[i];
109389 pset->vm_stat_diff[i] = 0;
109390- atomic_long_add(v, &zone->vm_stat[i]);
109391- atomic_long_add(v, &vm_stat[i]);
109392+ atomic_long_add_unchecked(v, &zone->vm_stat[i]);
109393+ atomic_long_add_unchecked(v, &vm_stat[i]);
109394 }
109395 }
109396 #endif
109397@@ -1293,10 +1294,22 @@ static void *vmstat_start(struct seq_file *m, loff_t *pos)
109398 stat_items_size += sizeof(struct vm_event_state);
109399 #endif
109400
109401- v = kmalloc(stat_items_size, GFP_KERNEL);
109402+ v = kzalloc(stat_items_size, GFP_KERNEL);
109403 m->private = v;
109404 if (!v)
109405 return ERR_PTR(-ENOMEM);
109406+
109407+#ifdef CONFIG_GRKERNSEC_PROC_ADD
109408+#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
109409+ if (!uid_eq(current_uid(), GLOBAL_ROOT_UID)
109410+#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
109411+ && !in_group_p(grsec_proc_gid)
109412+#endif
109413+ )
109414+ return (unsigned long *)m->private + *pos;
109415+#endif
109416+#endif
109417+
109418 for (i = 0; i < NR_VM_ZONE_STAT_ITEMS; i++)
109419 v[i] = global_page_state(i);
109420 v += NR_VM_ZONE_STAT_ITEMS;
109421@@ -1528,10 +1541,16 @@ static int __init setup_vmstat(void)
109422 cpu_notifier_register_done();
109423 #endif
109424 #ifdef CONFIG_PROC_FS
109425- proc_create("buddyinfo", S_IRUGO, NULL, &fragmentation_file_operations);
109426- proc_create("pagetypeinfo", S_IRUGO, NULL, &pagetypeinfo_file_ops);
109427- proc_create("vmstat", S_IRUGO, NULL, &proc_vmstat_file_operations);
109428- proc_create("zoneinfo", S_IRUGO, NULL, &proc_zoneinfo_file_operations);
109429+ {
109430+ mode_t gr_mode = S_IRUGO;
109431+#ifdef CONFIG_GRKERNSEC_PROC_ADD
109432+ gr_mode = S_IRUSR;
109433+#endif
109434+ proc_create("buddyinfo", gr_mode, NULL, &fragmentation_file_operations);
109435+ proc_create("pagetypeinfo", gr_mode, NULL, &pagetypeinfo_file_ops);
109436+ proc_create("vmstat", S_IRUGO, NULL, &proc_vmstat_file_operations);
109437+ proc_create("zoneinfo", gr_mode, NULL, &proc_zoneinfo_file_operations);
109438+ }
109439 #endif
109440 return 0;
109441 }
109442diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c
109443index 64c6bed..b79a5de 100644
109444--- a/net/8021q/vlan.c
109445+++ b/net/8021q/vlan.c
109446@@ -481,7 +481,7 @@ out:
109447 return NOTIFY_DONE;
109448 }
109449
109450-static struct notifier_block vlan_notifier_block __read_mostly = {
109451+static struct notifier_block vlan_notifier_block = {
109452 .notifier_call = vlan_device_event,
109453 };
109454
109455@@ -556,8 +556,7 @@ static int vlan_ioctl_handler(struct net *net, void __user *arg)
109456 err = -EPERM;
109457 if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
109458 break;
109459- if ((args.u.name_type >= 0) &&
109460- (args.u.name_type < VLAN_NAME_TYPE_HIGHEST)) {
109461+ if (args.u.name_type < VLAN_NAME_TYPE_HIGHEST) {
109462 struct vlan_net *vn;
109463
109464 vn = net_generic(net, vlan_net_id);
109465diff --git a/net/8021q/vlan_netlink.c b/net/8021q/vlan_netlink.c
109466index c92b52f..006c052 100644
109467--- a/net/8021q/vlan_netlink.c
109468+++ b/net/8021q/vlan_netlink.c
109469@@ -245,7 +245,7 @@ static struct net *vlan_get_link_net(const struct net_device *dev)
109470 return dev_net(real_dev);
109471 }
109472
109473-struct rtnl_link_ops vlan_link_ops __read_mostly = {
109474+struct rtnl_link_ops vlan_link_ops = {
109475 .kind = "vlan",
109476 .maxtype = IFLA_VLAN_MAX,
109477 .policy = vlan_policy,
109478diff --git a/net/9p/client.c b/net/9p/client.c
109479index e86a9bea..e91f70e 100644
109480--- a/net/9p/client.c
109481+++ b/net/9p/client.c
109482@@ -596,7 +596,7 @@ static int p9_check_zc_errors(struct p9_client *c, struct p9_req_t *req,
109483 len - inline_len);
109484 } else {
109485 err = copy_from_user(ename + inline_len,
109486- uidata, len - inline_len);
109487+ (char __force_user *)uidata, len - inline_len);
109488 if (err) {
109489 err = -EFAULT;
109490 goto out_err;
109491@@ -1570,7 +1570,7 @@ p9_client_read(struct p9_fid *fid, char *data, char __user *udata, u64 offset,
109492 kernel_buf = 1;
109493 indata = data;
109494 } else
109495- indata = (__force char *)udata;
109496+ indata = (__force_kernel char *)udata;
109497 /*
109498 * response header len is 11
109499 * PDU Header(7) + IO Size (4)
109500@@ -1645,7 +1645,7 @@ p9_client_write(struct p9_fid *fid, char *data, const char __user *udata,
109501 kernel_buf = 1;
109502 odata = data;
109503 } else
109504- odata = (char *)udata;
109505+ odata = (char __force_kernel *)udata;
109506 req = p9_client_zc_rpc(clnt, P9_TWRITE, NULL, odata, 0, rsize,
109507 P9_ZC_HDR_SZ, kernel_buf, "dqd",
109508 fid->fid, offset, rsize);
109509diff --git a/net/9p/mod.c b/net/9p/mod.c
109510index 6ab36ae..6f1841b 100644
109511--- a/net/9p/mod.c
109512+++ b/net/9p/mod.c
109513@@ -84,7 +84,7 @@ static LIST_HEAD(v9fs_trans_list);
109514 void v9fs_register_trans(struct p9_trans_module *m)
109515 {
109516 spin_lock(&v9fs_trans_lock);
109517- list_add_tail(&m->list, &v9fs_trans_list);
109518+ pax_list_add_tail((struct list_head *)&m->list, &v9fs_trans_list);
109519 spin_unlock(&v9fs_trans_lock);
109520 }
109521 EXPORT_SYMBOL(v9fs_register_trans);
109522@@ -97,7 +97,7 @@ EXPORT_SYMBOL(v9fs_register_trans);
109523 void v9fs_unregister_trans(struct p9_trans_module *m)
109524 {
109525 spin_lock(&v9fs_trans_lock);
109526- list_del_init(&m->list);
109527+ pax_list_del_init((struct list_head *)&m->list);
109528 spin_unlock(&v9fs_trans_lock);
109529 }
109530 EXPORT_SYMBOL(v9fs_unregister_trans);
109531diff --git a/net/9p/trans_fd.c b/net/9p/trans_fd.c
109532index 80d08f6..de63fd1 100644
109533--- a/net/9p/trans_fd.c
109534+++ b/net/9p/trans_fd.c
109535@@ -428,7 +428,7 @@ static int p9_fd_write(struct p9_client *client, void *v, int len)
109536 oldfs = get_fs();
109537 set_fs(get_ds());
109538 /* The cast to a user pointer is valid due to the set_fs() */
109539- ret = vfs_write(ts->wr, (__force void __user *)v, len, &ts->wr->f_pos);
109540+ ret = vfs_write(ts->wr, (void __force_user *)v, len, &ts->wr->f_pos);
109541 set_fs(oldfs);
109542
109543 if (ret <= 0 && ret != -ERESTARTSYS && ret != -EAGAIN)
109544diff --git a/net/appletalk/atalk_proc.c b/net/appletalk/atalk_proc.c
109545index af46bc4..f9adfcd 100644
109546--- a/net/appletalk/atalk_proc.c
109547+++ b/net/appletalk/atalk_proc.c
109548@@ -256,7 +256,7 @@ int __init atalk_proc_init(void)
109549 struct proc_dir_entry *p;
109550 int rc = -ENOMEM;
109551
109552- atalk_proc_dir = proc_mkdir("atalk", init_net.proc_net);
109553+ atalk_proc_dir = proc_mkdir_restrict("atalk", init_net.proc_net);
109554 if (!atalk_proc_dir)
109555 goto out;
109556
109557diff --git a/net/atm/atm_misc.c b/net/atm/atm_misc.c
109558index 876fbe8..8bbea9f 100644
109559--- a/net/atm/atm_misc.c
109560+++ b/net/atm/atm_misc.c
109561@@ -17,7 +17,7 @@ int atm_charge(struct atm_vcc *vcc, int truesize)
109562 if (atomic_read(&sk_atm(vcc)->sk_rmem_alloc) <= sk_atm(vcc)->sk_rcvbuf)
109563 return 1;
109564 atm_return(vcc, truesize);
109565- atomic_inc(&vcc->stats->rx_drop);
109566+ atomic_inc_unchecked(&vcc->stats->rx_drop);
109567 return 0;
109568 }
109569 EXPORT_SYMBOL(atm_charge);
109570@@ -39,7 +39,7 @@ struct sk_buff *atm_alloc_charge(struct atm_vcc *vcc, int pdu_size,
109571 }
109572 }
109573 atm_return(vcc, guess);
109574- atomic_inc(&vcc->stats->rx_drop);
109575+ atomic_inc_unchecked(&vcc->stats->rx_drop);
109576 return NULL;
109577 }
109578 EXPORT_SYMBOL(atm_alloc_charge);
109579@@ -86,7 +86,7 @@ EXPORT_SYMBOL(atm_pcr_goal);
109580
109581 void sonet_copy_stats(struct k_sonet_stats *from, struct sonet_stats *to)
109582 {
109583-#define __HANDLE_ITEM(i) to->i = atomic_read(&from->i)
109584+#define __HANDLE_ITEM(i) to->i = atomic_read_unchecked(&from->i)
109585 __SONET_ITEMS
109586 #undef __HANDLE_ITEM
109587 }
109588@@ -94,7 +94,7 @@ EXPORT_SYMBOL(sonet_copy_stats);
109589
109590 void sonet_subtract_stats(struct k_sonet_stats *from, struct sonet_stats *to)
109591 {
109592-#define __HANDLE_ITEM(i) atomic_sub(to->i, &from->i)
109593+#define __HANDLE_ITEM(i) atomic_sub_unchecked(to->i,&from->i)
109594 __SONET_ITEMS
109595 #undef __HANDLE_ITEM
109596 }
109597diff --git a/net/atm/lec.c b/net/atm/lec.c
109598index 4b98f89..5a2f6cb 100644
109599--- a/net/atm/lec.c
109600+++ b/net/atm/lec.c
109601@@ -111,9 +111,9 @@ static inline void lec_arp_put(struct lec_arp_table *entry)
109602 }
109603
109604 static struct lane2_ops lane2_ops = {
109605- lane2_resolve, /* resolve, spec 3.1.3 */
109606- lane2_associate_req, /* associate_req, spec 3.1.4 */
109607- NULL /* associate indicator, spec 3.1.5 */
109608+ .resolve = lane2_resolve,
109609+ .associate_req = lane2_associate_req,
109610+ .associate_indicator = NULL
109611 };
109612
109613 static unsigned char bus_mac[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
109614diff --git a/net/atm/lec.h b/net/atm/lec.h
109615index 4149db1..f2ab682 100644
109616--- a/net/atm/lec.h
109617+++ b/net/atm/lec.h
109618@@ -48,7 +48,7 @@ struct lane2_ops {
109619 const u8 *tlvs, u32 sizeoftlvs);
109620 void (*associate_indicator) (struct net_device *dev, const u8 *mac_addr,
109621 const u8 *tlvs, u32 sizeoftlvs);
109622-};
109623+} __no_const;
109624
109625 /*
109626 * ATM LAN Emulation supports both LLC & Dix Ethernet EtherType
109627diff --git a/net/atm/mpoa_caches.c b/net/atm/mpoa_caches.c
109628index d1b2d9a..d549f7f 100644
109629--- a/net/atm/mpoa_caches.c
109630+++ b/net/atm/mpoa_caches.c
109631@@ -535,30 +535,30 @@ static void eg_destroy_cache(struct mpoa_client *mpc)
109632
109633
109634 static struct in_cache_ops ingress_ops = {
109635- in_cache_add_entry, /* add_entry */
109636- in_cache_get, /* get */
109637- in_cache_get_with_mask, /* get_with_mask */
109638- in_cache_get_by_vcc, /* get_by_vcc */
109639- in_cache_put, /* put */
109640- in_cache_remove_entry, /* remove_entry */
109641- cache_hit, /* cache_hit */
109642- clear_count_and_expired, /* clear_count */
109643- check_resolving_entries, /* check_resolving */
109644- refresh_entries, /* refresh */
109645- in_destroy_cache /* destroy_cache */
109646+ .add_entry = in_cache_add_entry,
109647+ .get = in_cache_get,
109648+ .get_with_mask = in_cache_get_with_mask,
109649+ .get_by_vcc = in_cache_get_by_vcc,
109650+ .put = in_cache_put,
109651+ .remove_entry = in_cache_remove_entry,
109652+ .cache_hit = cache_hit,
109653+ .clear_count = clear_count_and_expired,
109654+ .check_resolving = check_resolving_entries,
109655+ .refresh = refresh_entries,
109656+ .destroy_cache = in_destroy_cache
109657 };
109658
109659 static struct eg_cache_ops egress_ops = {
109660- eg_cache_add_entry, /* add_entry */
109661- eg_cache_get_by_cache_id, /* get_by_cache_id */
109662- eg_cache_get_by_tag, /* get_by_tag */
109663- eg_cache_get_by_vcc, /* get_by_vcc */
109664- eg_cache_get_by_src_ip, /* get_by_src_ip */
109665- eg_cache_put, /* put */
109666- eg_cache_remove_entry, /* remove_entry */
109667- update_eg_cache_entry, /* update */
109668- clear_expired, /* clear_expired */
109669- eg_destroy_cache /* destroy_cache */
109670+ .add_entry = eg_cache_add_entry,
109671+ .get_by_cache_id = eg_cache_get_by_cache_id,
109672+ .get_by_tag = eg_cache_get_by_tag,
109673+ .get_by_vcc = eg_cache_get_by_vcc,
109674+ .get_by_src_ip = eg_cache_get_by_src_ip,
109675+ .put = eg_cache_put,
109676+ .remove_entry = eg_cache_remove_entry,
109677+ .update = update_eg_cache_entry,
109678+ .clear_expired = clear_expired,
109679+ .destroy_cache = eg_destroy_cache
109680 };
109681
109682
109683diff --git a/net/atm/proc.c b/net/atm/proc.c
109684index bbb6461..cf04016 100644
109685--- a/net/atm/proc.c
109686+++ b/net/atm/proc.c
109687@@ -45,9 +45,9 @@ static void add_stats(struct seq_file *seq, const char *aal,
109688 const struct k_atm_aal_stats *stats)
109689 {
109690 seq_printf(seq, "%s ( %d %d %d %d %d )", aal,
109691- atomic_read(&stats->tx), atomic_read(&stats->tx_err),
109692- atomic_read(&stats->rx), atomic_read(&stats->rx_err),
109693- atomic_read(&stats->rx_drop));
109694+ atomic_read_unchecked(&stats->tx),atomic_read_unchecked(&stats->tx_err),
109695+ atomic_read_unchecked(&stats->rx),atomic_read_unchecked(&stats->rx_err),
109696+ atomic_read_unchecked(&stats->rx_drop));
109697 }
109698
109699 static void atm_dev_info(struct seq_file *seq, const struct atm_dev *dev)
109700diff --git a/net/atm/resources.c b/net/atm/resources.c
109701index 0447d5d..3cf4728 100644
109702--- a/net/atm/resources.c
109703+++ b/net/atm/resources.c
109704@@ -160,7 +160,7 @@ EXPORT_SYMBOL(atm_dev_deregister);
109705 static void copy_aal_stats(struct k_atm_aal_stats *from,
109706 struct atm_aal_stats *to)
109707 {
109708-#define __HANDLE_ITEM(i) to->i = atomic_read(&from->i)
109709+#define __HANDLE_ITEM(i) to->i = atomic_read_unchecked(&from->i)
109710 __AAL_STAT_ITEMS
109711 #undef __HANDLE_ITEM
109712 }
109713@@ -168,7 +168,7 @@ static void copy_aal_stats(struct k_atm_aal_stats *from,
109714 static void subtract_aal_stats(struct k_atm_aal_stats *from,
109715 struct atm_aal_stats *to)
109716 {
109717-#define __HANDLE_ITEM(i) atomic_sub(to->i, &from->i)
109718+#define __HANDLE_ITEM(i) atomic_sub_unchecked(to->i, &from->i)
109719 __AAL_STAT_ITEMS
109720 #undef __HANDLE_ITEM
109721 }
109722diff --git a/net/ax25/sysctl_net_ax25.c b/net/ax25/sysctl_net_ax25.c
109723index 919a5ce..cc6b444 100644
109724--- a/net/ax25/sysctl_net_ax25.c
109725+++ b/net/ax25/sysctl_net_ax25.c
109726@@ -152,7 +152,7 @@ int ax25_register_dev_sysctl(ax25_dev *ax25_dev)
109727 {
109728 char path[sizeof("net/ax25/") + IFNAMSIZ];
109729 int k;
109730- struct ctl_table *table;
109731+ ctl_table_no_const *table;
109732
109733 table = kmemdup(ax25_param_table, sizeof(ax25_param_table), GFP_KERNEL);
109734 if (!table)
109735diff --git a/net/batman-adv/bat_iv_ogm.c b/net/batman-adv/bat_iv_ogm.c
109736index 00e00e0..710fcd2 100644
109737--- a/net/batman-adv/bat_iv_ogm.c
109738+++ b/net/batman-adv/bat_iv_ogm.c
109739@@ -312,7 +312,7 @@ static int batadv_iv_ogm_iface_enable(struct batadv_hard_iface *hard_iface)
109740
109741 /* randomize initial seqno to avoid collision */
109742 get_random_bytes(&random_seqno, sizeof(random_seqno));
109743- atomic_set(&hard_iface->bat_iv.ogm_seqno, random_seqno);
109744+ atomic_set_unchecked(&hard_iface->bat_iv.ogm_seqno, random_seqno);
109745
109746 hard_iface->bat_iv.ogm_buff_len = BATADV_OGM_HLEN;
109747 ogm_buff = kmalloc(hard_iface->bat_iv.ogm_buff_len, GFP_ATOMIC);
109748@@ -917,9 +917,9 @@ static void batadv_iv_ogm_schedule(struct batadv_hard_iface *hard_iface)
109749 batadv_ogm_packet->tvlv_len = htons(tvlv_len);
109750
109751 /* change sequence number to network order */
109752- seqno = (uint32_t)atomic_read(&hard_iface->bat_iv.ogm_seqno);
109753+ seqno = (uint32_t)atomic_read_unchecked(&hard_iface->bat_iv.ogm_seqno);
109754 batadv_ogm_packet->seqno = htonl(seqno);
109755- atomic_inc(&hard_iface->bat_iv.ogm_seqno);
109756+ atomic_inc_unchecked(&hard_iface->bat_iv.ogm_seqno);
109757
109758 batadv_iv_ogm_slide_own_bcast_window(hard_iface);
109759
109760@@ -1596,7 +1596,7 @@ static void batadv_iv_ogm_process(const struct sk_buff *skb, int ogm_offset,
109761 return;
109762
109763 /* could be changed by schedule_own_packet() */
109764- if_incoming_seqno = atomic_read(&if_incoming->bat_iv.ogm_seqno);
109765+ if_incoming_seqno = atomic_read_unchecked(&if_incoming->bat_iv.ogm_seqno);
109766
109767 if (ogm_packet->flags & BATADV_DIRECTLINK)
109768 has_directlink_flag = true;
109769diff --git a/net/batman-adv/fragmentation.c b/net/batman-adv/fragmentation.c
109770index 3d1dcaa..4699f4e 100644
109771--- a/net/batman-adv/fragmentation.c
109772+++ b/net/batman-adv/fragmentation.c
109773@@ -449,7 +449,7 @@ bool batadv_frag_send_packet(struct sk_buff *skb,
109774 frag_header.packet_type = BATADV_UNICAST_FRAG;
109775 frag_header.version = BATADV_COMPAT_VERSION;
109776 frag_header.ttl = BATADV_TTL;
109777- frag_header.seqno = htons(atomic_inc_return(&bat_priv->frag_seqno));
109778+ frag_header.seqno = htons(atomic_inc_return_unchecked(&bat_priv->frag_seqno));
109779 frag_header.reserved = 0;
109780 frag_header.no = 0;
109781 frag_header.total_size = htons(skb->len);
109782diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c
109783index 5ec31d7..e371631 100644
109784--- a/net/batman-adv/soft-interface.c
109785+++ b/net/batman-adv/soft-interface.c
109786@@ -295,7 +295,7 @@ send:
109787 primary_if->net_dev->dev_addr);
109788
109789 /* set broadcast sequence number */
109790- seqno = atomic_inc_return(&bat_priv->bcast_seqno);
109791+ seqno = atomic_inc_return_unchecked(&bat_priv->bcast_seqno);
109792 bcast_packet->seqno = htonl(seqno);
109793
109794 batadv_add_bcast_packet_to_list(bat_priv, skb, brd_delay);
109795@@ -760,7 +760,7 @@ static int batadv_softif_init_late(struct net_device *dev)
109796 atomic_set(&bat_priv->batman_queue_left, BATADV_BATMAN_QUEUE_LEN);
109797
109798 atomic_set(&bat_priv->mesh_state, BATADV_MESH_INACTIVE);
109799- atomic_set(&bat_priv->bcast_seqno, 1);
109800+ atomic_set_unchecked(&bat_priv->bcast_seqno, 1);
109801 atomic_set(&bat_priv->tt.vn, 0);
109802 atomic_set(&bat_priv->tt.local_changes, 0);
109803 atomic_set(&bat_priv->tt.ogm_append_cnt, 0);
109804@@ -774,7 +774,7 @@ static int batadv_softif_init_late(struct net_device *dev)
109805
109806 /* randomize initial seqno to avoid collision */
109807 get_random_bytes(&random_seqno, sizeof(random_seqno));
109808- atomic_set(&bat_priv->frag_seqno, random_seqno);
109809+ atomic_set_unchecked(&bat_priv->frag_seqno, random_seqno);
109810
109811 bat_priv->primary_if = NULL;
109812 bat_priv->num_ifaces = 0;
109813@@ -982,7 +982,7 @@ int batadv_softif_is_valid(const struct net_device *net_dev)
109814 return 0;
109815 }
109816
109817-struct rtnl_link_ops batadv_link_ops __read_mostly = {
109818+struct rtnl_link_ops batadv_link_ops = {
109819 .kind = "batadv",
109820 .priv_size = sizeof(struct batadv_priv),
109821 .setup = batadv_softif_init_early,
109822diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h
109823index 9398c3f..0e79657 100644
109824--- a/net/batman-adv/types.h
109825+++ b/net/batman-adv/types.h
109826@@ -67,7 +67,7 @@ enum batadv_dhcp_recipient {
109827 struct batadv_hard_iface_bat_iv {
109828 unsigned char *ogm_buff;
109829 int ogm_buff_len;
109830- atomic_t ogm_seqno;
109831+ atomic_unchecked_t ogm_seqno;
109832 };
109833
109834 /**
109835@@ -766,7 +766,7 @@ struct batadv_priv {
109836 atomic_t bonding;
109837 atomic_t fragmentation;
109838 atomic_t packet_size_max;
109839- atomic_t frag_seqno;
109840+ atomic_unchecked_t frag_seqno;
109841 #ifdef CONFIG_BATMAN_ADV_BLA
109842 atomic_t bridge_loop_avoidance;
109843 #endif
109844@@ -785,7 +785,7 @@ struct batadv_priv {
109845 #endif
109846 uint32_t isolation_mark;
109847 uint32_t isolation_mark_mask;
109848- atomic_t bcast_seqno;
109849+ atomic_unchecked_t bcast_seqno;
109850 atomic_t bcast_queue_left;
109851 atomic_t batman_queue_left;
109852 char num_ifaces;
109853diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c
109854index 1d65c5b..43e55fd 100644
109855--- a/net/bluetooth/hci_sock.c
109856+++ b/net/bluetooth/hci_sock.c
109857@@ -1042,7 +1042,7 @@ static int hci_sock_setsockopt(struct socket *sock, int level, int optname,
109858 uf.event_mask[1] = *((u32 *) f->event_mask + 1);
109859 }
109860
109861- len = min_t(unsigned int, len, sizeof(uf));
109862+ len = min((size_t)len, sizeof(uf));
109863 if (copy_from_user(&uf, optval, len)) {
109864 err = -EFAULT;
109865 break;
109866diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
109867index 6ba33f9..4afc26f 100644
109868--- a/net/bluetooth/l2cap_core.c
109869+++ b/net/bluetooth/l2cap_core.c
109870@@ -3534,8 +3534,10 @@ static int l2cap_parse_conf_rsp(struct l2cap_chan *chan, void *rsp, int len,
109871 break;
109872
109873 case L2CAP_CONF_RFC:
109874- if (olen == sizeof(rfc))
109875- memcpy(&rfc, (void *)val, olen);
109876+ if (olen != sizeof(rfc))
109877+ break;
109878+
109879+ memcpy(&rfc, (void *)val, olen);
109880
109881 if (test_bit(CONF_STATE2_DEVICE, &chan->conf_state) &&
109882 rfc.mode != chan->mode)
109883diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
109884index 60694f0..32623ed 100644
109885--- a/net/bluetooth/l2cap_sock.c
109886+++ b/net/bluetooth/l2cap_sock.c
109887@@ -633,7 +633,8 @@ static int l2cap_sock_setsockopt_old(struct socket *sock, int optname,
109888 struct sock *sk = sock->sk;
109889 struct l2cap_chan *chan = l2cap_pi(sk)->chan;
109890 struct l2cap_options opts;
109891- int len, err = 0;
109892+ int err = 0;
109893+ size_t len = optlen;
109894 u32 opt;
109895
109896 BT_DBG("sk %p", sk);
109897@@ -660,7 +661,7 @@ static int l2cap_sock_setsockopt_old(struct socket *sock, int optname,
109898 opts.max_tx = chan->max_tx;
109899 opts.txwin_size = chan->tx_win;
109900
109901- len = min_t(unsigned int, sizeof(opts), optlen);
109902+ len = min(sizeof(opts), len);
109903 if (copy_from_user((char *) &opts, optval, len)) {
109904 err = -EFAULT;
109905 break;
109906@@ -747,7 +748,8 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname,
109907 struct bt_security sec;
109908 struct bt_power pwr;
109909 struct l2cap_conn *conn;
109910- int len, err = 0;
109911+ int err = 0;
109912+ size_t len = optlen;
109913 u32 opt;
109914
109915 BT_DBG("sk %p", sk);
109916@@ -771,7 +773,7 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname,
109917
109918 sec.level = BT_SECURITY_LOW;
109919
109920- len = min_t(unsigned int, sizeof(sec), optlen);
109921+ len = min(sizeof(sec), len);
109922 if (copy_from_user((char *) &sec, optval, len)) {
109923 err = -EFAULT;
109924 break;
109925@@ -867,7 +869,7 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname,
109926
109927 pwr.force_active = BT_POWER_FORCE_ACTIVE_ON;
109928
109929- len = min_t(unsigned int, sizeof(pwr), optlen);
109930+ len = min(sizeof(pwr), len);
109931 if (copy_from_user((char *) &pwr, optval, len)) {
109932 err = -EFAULT;
109933 break;
109934diff --git a/net/bluetooth/rfcomm/sock.c b/net/bluetooth/rfcomm/sock.c
109935index 3c6d2c8..6afc970 100644
109936--- a/net/bluetooth/rfcomm/sock.c
109937+++ b/net/bluetooth/rfcomm/sock.c
109938@@ -686,7 +686,7 @@ static int rfcomm_sock_setsockopt(struct socket *sock, int level, int optname, c
109939 struct sock *sk = sock->sk;
109940 struct bt_security sec;
109941 int err = 0;
109942- size_t len;
109943+ size_t len = optlen;
109944 u32 opt;
109945
109946 BT_DBG("sk %p", sk);
109947@@ -708,7 +708,7 @@ static int rfcomm_sock_setsockopt(struct socket *sock, int level, int optname, c
109948
109949 sec.level = BT_SECURITY_LOW;
109950
109951- len = min_t(unsigned int, sizeof(sec), optlen);
109952+ len = min(sizeof(sec), len);
109953 if (copy_from_user((char *) &sec, optval, len)) {
109954 err = -EFAULT;
109955 break;
109956diff --git a/net/bluetooth/rfcomm/tty.c b/net/bluetooth/rfcomm/tty.c
109957index 8e385a0..a5bdd8e 100644
109958--- a/net/bluetooth/rfcomm/tty.c
109959+++ b/net/bluetooth/rfcomm/tty.c
109960@@ -752,7 +752,7 @@ static int rfcomm_tty_open(struct tty_struct *tty, struct file *filp)
109961 BT_DBG("tty %p id %d", tty, tty->index);
109962
109963 BT_DBG("dev %p dst %pMR channel %d opened %d", dev, &dev->dst,
109964- dev->channel, dev->port.count);
109965+ dev->channel, atomic_read(&dev->port.count));
109966
109967 err = tty_port_open(&dev->port, tty, filp);
109968 if (err)
109969@@ -775,7 +775,7 @@ static void rfcomm_tty_close(struct tty_struct *tty, struct file *filp)
109970 struct rfcomm_dev *dev = (struct rfcomm_dev *) tty->driver_data;
109971
109972 BT_DBG("tty %p dev %p dlc %p opened %d", tty, dev, dev->dlc,
109973- dev->port.count);
109974+ atomic_read(&dev->port.count));
109975
109976 tty_port_close(&dev->port, tty, filp);
109977 }
109978diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c
109979index 4fbcea0..69a6786 100644
109980--- a/net/bridge/br_netlink.c
109981+++ b/net/bridge/br_netlink.c
109982@@ -726,7 +726,7 @@ static struct rtnl_af_ops br_af_ops __read_mostly = {
109983 .get_link_af_size = br_get_link_af_size,
109984 };
109985
109986-struct rtnl_link_ops br_link_ops __read_mostly = {
109987+struct rtnl_link_ops br_link_ops = {
109988 .kind = "bridge",
109989 .priv_size = sizeof(struct net_bridge),
109990 .setup = br_dev_setup,
109991diff --git a/net/bridge/netfilter/ebtables.c b/net/bridge/netfilter/ebtables.c
109992index 91180a7..1301daa 100644
109993--- a/net/bridge/netfilter/ebtables.c
109994+++ b/net/bridge/netfilter/ebtables.c
109995@@ -1533,7 +1533,7 @@ static int do_ebt_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
109996 tmp.valid_hooks = t->table->valid_hooks;
109997 }
109998 mutex_unlock(&ebt_mutex);
109999- if (copy_to_user(user, &tmp, *len) != 0) {
110000+ if (*len > sizeof(tmp) || copy_to_user(user, &tmp, *len) != 0) {
110001 BUGPRINT("c2u Didn't work\n");
110002 ret = -EFAULT;
110003 break;
110004@@ -2339,7 +2339,7 @@ static int compat_do_ebt_get_ctl(struct sock *sk, int cmd,
110005 goto out;
110006 tmp.valid_hooks = t->valid_hooks;
110007
110008- if (copy_to_user(user, &tmp, *len) != 0) {
110009+ if (*len > sizeof(tmp) || copy_to_user(user, &tmp, *len) != 0) {
110010 ret = -EFAULT;
110011 break;
110012 }
110013@@ -2350,7 +2350,7 @@ static int compat_do_ebt_get_ctl(struct sock *sk, int cmd,
110014 tmp.entries_size = t->table->entries_size;
110015 tmp.valid_hooks = t->table->valid_hooks;
110016
110017- if (copy_to_user(user, &tmp, *len) != 0) {
110018+ if (*len > sizeof(tmp) || copy_to_user(user, &tmp, *len) != 0) {
110019 ret = -EFAULT;
110020 break;
110021 }
110022diff --git a/net/caif/cfctrl.c b/net/caif/cfctrl.c
110023index f5afda1..dcf770a 100644
110024--- a/net/caif/cfctrl.c
110025+++ b/net/caif/cfctrl.c
110026@@ -10,6 +10,7 @@
110027 #include <linux/spinlock.h>
110028 #include <linux/slab.h>
110029 #include <linux/pkt_sched.h>
110030+#include <linux/sched.h>
110031 #include <net/caif/caif_layer.h>
110032 #include <net/caif/cfpkt.h>
110033 #include <net/caif/cfctrl.h>
110034@@ -43,8 +44,8 @@ struct cflayer *cfctrl_create(void)
110035 memset(&dev_info, 0, sizeof(dev_info));
110036 dev_info.id = 0xff;
110037 cfsrvl_init(&this->serv, 0, &dev_info, false);
110038- atomic_set(&this->req_seq_no, 1);
110039- atomic_set(&this->rsp_seq_no, 1);
110040+ atomic_set_unchecked(&this->req_seq_no, 1);
110041+ atomic_set_unchecked(&this->rsp_seq_no, 1);
110042 this->serv.layer.receive = cfctrl_recv;
110043 sprintf(this->serv.layer.name, "ctrl");
110044 this->serv.layer.ctrlcmd = cfctrl_ctrlcmd;
110045@@ -130,8 +131,8 @@ static void cfctrl_insert_req(struct cfctrl *ctrl,
110046 struct cfctrl_request_info *req)
110047 {
110048 spin_lock_bh(&ctrl->info_list_lock);
110049- atomic_inc(&ctrl->req_seq_no);
110050- req->sequence_no = atomic_read(&ctrl->req_seq_no);
110051+ atomic_inc_unchecked(&ctrl->req_seq_no);
110052+ req->sequence_no = atomic_read_unchecked(&ctrl->req_seq_no);
110053 list_add_tail(&req->list, &ctrl->list);
110054 spin_unlock_bh(&ctrl->info_list_lock);
110055 }
110056@@ -149,7 +150,7 @@ static struct cfctrl_request_info *cfctrl_remove_req(struct cfctrl *ctrl,
110057 if (p != first)
110058 pr_warn("Requests are not received in order\n");
110059
110060- atomic_set(&ctrl->rsp_seq_no,
110061+ atomic_set_unchecked(&ctrl->rsp_seq_no,
110062 p->sequence_no);
110063 list_del(&p->list);
110064 goto out;
110065diff --git a/net/caif/chnl_net.c b/net/caif/chnl_net.c
110066index 67a4a36..8d28068 100644
110067--- a/net/caif/chnl_net.c
110068+++ b/net/caif/chnl_net.c
110069@@ -515,7 +515,7 @@ static const struct nla_policy ipcaif_policy[IFLA_CAIF_MAX + 1] = {
110070 };
110071
110072
110073-static struct rtnl_link_ops ipcaif_link_ops __read_mostly = {
110074+static struct rtnl_link_ops ipcaif_link_ops = {
110075 .kind = "caif",
110076 .priv_size = sizeof(struct chnl_net),
110077 .setup = ipcaif_net_setup,
110078diff --git a/net/can/af_can.c b/net/can/af_can.c
110079index 32d710e..93bcf05 100644
110080--- a/net/can/af_can.c
110081+++ b/net/can/af_can.c
110082@@ -884,7 +884,7 @@ static const struct net_proto_family can_family_ops = {
110083 };
110084
110085 /* notifier block for netdevice event */
110086-static struct notifier_block can_netdev_notifier __read_mostly = {
110087+static struct notifier_block can_netdev_notifier = {
110088 .notifier_call = can_notifier,
110089 };
110090
110091diff --git a/net/can/bcm.c b/net/can/bcm.c
110092index ee9ffd9..dfdf3d4 100644
110093--- a/net/can/bcm.c
110094+++ b/net/can/bcm.c
110095@@ -1619,7 +1619,7 @@ static int __init bcm_module_init(void)
110096 }
110097
110098 /* create /proc/net/can-bcm directory */
110099- proc_dir = proc_mkdir("can-bcm", init_net.proc_net);
110100+ proc_dir = proc_mkdir_restrict("can-bcm", init_net.proc_net);
110101 return 0;
110102 }
110103
110104diff --git a/net/can/gw.c b/net/can/gw.c
110105index a6f448e..5902171 100644
110106--- a/net/can/gw.c
110107+++ b/net/can/gw.c
110108@@ -80,7 +80,6 @@ MODULE_PARM_DESC(max_hops,
110109 "default: " __stringify(CGW_DEFAULT_HOPS) ")");
110110
110111 static HLIST_HEAD(cgw_list);
110112-static struct notifier_block notifier;
110113
110114 static struct kmem_cache *cgw_cache __read_mostly;
110115
110116@@ -948,6 +947,10 @@ static int cgw_remove_job(struct sk_buff *skb, struct nlmsghdr *nlh)
110117 return err;
110118 }
110119
110120+static struct notifier_block notifier = {
110121+ .notifier_call = cgw_notifier
110122+};
110123+
110124 static __init int cgw_module_init(void)
110125 {
110126 /* sanitize given module parameter */
110127@@ -963,7 +966,6 @@ static __init int cgw_module_init(void)
110128 return -ENOMEM;
110129
110130 /* set notifier */
110131- notifier.notifier_call = cgw_notifier;
110132 register_netdevice_notifier(&notifier);
110133
110134 if (__rtnl_register(PF_CAN, RTM_GETROUTE, NULL, cgw_dump_jobs, NULL)) {
110135diff --git a/net/can/proc.c b/net/can/proc.c
110136index 1a19b98..df2b4ec 100644
110137--- a/net/can/proc.c
110138+++ b/net/can/proc.c
110139@@ -514,7 +514,7 @@ static void can_remove_proc_readentry(const char *name)
110140 void can_init_proc(void)
110141 {
110142 /* create /proc/net/can directory */
110143- can_dir = proc_mkdir("can", init_net.proc_net);
110144+ can_dir = proc_mkdir_restrict("can", init_net.proc_net);
110145
110146 if (!can_dir) {
110147 printk(KERN_INFO "can: failed to create /proc/net/can . "
110148diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c
110149index a9f4ae4..ee19b92 100644
110150--- a/net/ceph/messenger.c
110151+++ b/net/ceph/messenger.c
110152@@ -188,7 +188,7 @@ static void con_fault(struct ceph_connection *con);
110153 #define MAX_ADDR_STR_LEN 64 /* 54 is enough */
110154
110155 static char addr_str[ADDR_STR_COUNT][MAX_ADDR_STR_LEN];
110156-static atomic_t addr_str_seq = ATOMIC_INIT(0);
110157+static atomic_unchecked_t addr_str_seq = ATOMIC_INIT(0);
110158
110159 static struct page *zero_page; /* used in certain error cases */
110160
110161@@ -199,7 +199,7 @@ const char *ceph_pr_addr(const struct sockaddr_storage *ss)
110162 struct sockaddr_in *in4 = (struct sockaddr_in *) ss;
110163 struct sockaddr_in6 *in6 = (struct sockaddr_in6 *) ss;
110164
110165- i = atomic_inc_return(&addr_str_seq) & ADDR_STR_COUNT_MASK;
110166+ i = atomic_inc_return_unchecked(&addr_str_seq) & ADDR_STR_COUNT_MASK;
110167 s = addr_str[i];
110168
110169 switch (ss->ss_family) {
110170diff --git a/net/compat.c b/net/compat.c
110171index f7bd286..76ea56a 100644
110172--- a/net/compat.c
110173+++ b/net/compat.c
110174@@ -100,20 +100,20 @@ ssize_t get_compat_msghdr(struct msghdr *kmsg,
110175
110176 #define CMSG_COMPAT_FIRSTHDR(msg) \
110177 (((msg)->msg_controllen) >= sizeof(struct compat_cmsghdr) ? \
110178- (struct compat_cmsghdr __user *)((msg)->msg_control) : \
110179+ (struct compat_cmsghdr __force_user *)((msg)->msg_control) : \
110180 (struct compat_cmsghdr __user *)NULL)
110181
110182 #define CMSG_COMPAT_OK(ucmlen, ucmsg, mhdr) \
110183 ((ucmlen) >= sizeof(struct compat_cmsghdr) && \
110184 (ucmlen) <= (unsigned long) \
110185 ((mhdr)->msg_controllen - \
110186- ((char *)(ucmsg) - (char *)(mhdr)->msg_control)))
110187+ ((char __force_kernel *)(ucmsg) - (char *)(mhdr)->msg_control)))
110188
110189 static inline struct compat_cmsghdr __user *cmsg_compat_nxthdr(struct msghdr *msg,
110190 struct compat_cmsghdr __user *cmsg, int cmsg_len)
110191 {
110192 char __user *ptr = (char __user *)cmsg + CMSG_COMPAT_ALIGN(cmsg_len);
110193- if ((unsigned long)(ptr + 1 - (char __user *)msg->msg_control) >
110194+ if ((unsigned long)(ptr + 1 - (char __force_user *)msg->msg_control) >
110195 msg->msg_controllen)
110196 return NULL;
110197 return (struct compat_cmsghdr __user *)ptr;
110198@@ -203,7 +203,7 @@ Efault:
110199
110200 int put_cmsg_compat(struct msghdr *kmsg, int level, int type, int len, void *data)
110201 {
110202- struct compat_cmsghdr __user *cm = (struct compat_cmsghdr __user *) kmsg->msg_control;
110203+ struct compat_cmsghdr __user *cm = (struct compat_cmsghdr __force_user *) kmsg->msg_control;
110204 struct compat_cmsghdr cmhdr;
110205 struct compat_timeval ctv;
110206 struct compat_timespec cts[3];
110207@@ -259,7 +259,7 @@ int put_cmsg_compat(struct msghdr *kmsg, int level, int type, int len, void *dat
110208
110209 void scm_detach_fds_compat(struct msghdr *kmsg, struct scm_cookie *scm)
110210 {
110211- struct compat_cmsghdr __user *cm = (struct compat_cmsghdr __user *) kmsg->msg_control;
110212+ struct compat_cmsghdr __user *cm = (struct compat_cmsghdr __force_user *) kmsg->msg_control;
110213 int fdmax = (kmsg->msg_controllen - sizeof(struct compat_cmsghdr)) / sizeof(int);
110214 int fdnum = scm->fp->count;
110215 struct file **fp = scm->fp->fp;
110216@@ -347,7 +347,7 @@ static int do_set_sock_timeout(struct socket *sock, int level,
110217 return -EFAULT;
110218 old_fs = get_fs();
110219 set_fs(KERNEL_DS);
110220- err = sock_setsockopt(sock, level, optname, (char *)&ktime, sizeof(ktime));
110221+ err = sock_setsockopt(sock, level, optname, (char __force_user *)&ktime, sizeof(ktime));
110222 set_fs(old_fs);
110223
110224 return err;
110225@@ -408,7 +408,7 @@ static int do_get_sock_timeout(struct socket *sock, int level, int optname,
110226 len = sizeof(ktime);
110227 old_fs = get_fs();
110228 set_fs(KERNEL_DS);
110229- err = sock_getsockopt(sock, level, optname, (char *) &ktime, &len);
110230+ err = sock_getsockopt(sock, level, optname, (char __force_user *) &ktime, (int __force_user *)&len);
110231 set_fs(old_fs);
110232
110233 if (!err) {
110234@@ -551,7 +551,7 @@ int compat_mc_setsockopt(struct sock *sock, int level, int optname,
110235 case MCAST_JOIN_GROUP:
110236 case MCAST_LEAVE_GROUP:
110237 {
110238- struct compat_group_req __user *gr32 = (void *)optval;
110239+ struct compat_group_req __user *gr32 = (void __user *)optval;
110240 struct group_req __user *kgr =
110241 compat_alloc_user_space(sizeof(struct group_req));
110242 u32 interface;
110243@@ -572,7 +572,7 @@ int compat_mc_setsockopt(struct sock *sock, int level, int optname,
110244 case MCAST_BLOCK_SOURCE:
110245 case MCAST_UNBLOCK_SOURCE:
110246 {
110247- struct compat_group_source_req __user *gsr32 = (void *)optval;
110248+ struct compat_group_source_req __user *gsr32 = (void __user *)optval;
110249 struct group_source_req __user *kgsr = compat_alloc_user_space(
110250 sizeof(struct group_source_req));
110251 u32 interface;
110252@@ -593,7 +593,7 @@ int compat_mc_setsockopt(struct sock *sock, int level, int optname,
110253 }
110254 case MCAST_MSFILTER:
110255 {
110256- struct compat_group_filter __user *gf32 = (void *)optval;
110257+ struct compat_group_filter __user *gf32 = (void __user *)optval;
110258 struct group_filter __user *kgf;
110259 u32 interface, fmode, numsrc;
110260
110261@@ -631,7 +631,7 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
110262 char __user *optval, int __user *optlen,
110263 int (*getsockopt)(struct sock *, int, int, char __user *, int __user *))
110264 {
110265- struct compat_group_filter __user *gf32 = (void *)optval;
110266+ struct compat_group_filter __user *gf32 = (void __user *)optval;
110267 struct group_filter __user *kgf;
110268 int __user *koptlen;
110269 u32 interface, fmode, numsrc;
110270@@ -775,7 +775,7 @@ COMPAT_SYSCALL_DEFINE2(socketcall, int, call, u32 __user *, args)
110271
110272 if (call < SYS_SOCKET || call > SYS_SENDMMSG)
110273 return -EINVAL;
110274- if (copy_from_user(a, args, nas[call]))
110275+ if (nas[call] > sizeof a || copy_from_user(a, args, nas[call]))
110276 return -EFAULT;
110277 a0 = a[0];
110278 a1 = a[1];
110279diff --git a/net/core/datagram.c b/net/core/datagram.c
110280index df493d6..1145766 100644
110281--- a/net/core/datagram.c
110282+++ b/net/core/datagram.c
110283@@ -302,7 +302,7 @@ int skb_kill_datagram(struct sock *sk, struct sk_buff *skb, unsigned int flags)
110284 }
110285
110286 kfree_skb(skb);
110287- atomic_inc(&sk->sk_drops);
110288+ atomic_inc_unchecked(&sk->sk_drops);
110289 sk_mem_reclaim_partial(sk);
110290
110291 return err;
110292diff --git a/net/core/dev.c b/net/core/dev.c
110293index e977e15..74b19b0 100644
110294--- a/net/core/dev.c
110295+++ b/net/core/dev.c
110296@@ -1681,14 +1681,14 @@ int __dev_forward_skb(struct net_device *dev, struct sk_buff *skb)
110297 {
110298 if (skb_shinfo(skb)->tx_flags & SKBTX_DEV_ZEROCOPY) {
110299 if (skb_copy_ubufs(skb, GFP_ATOMIC)) {
110300- atomic_long_inc(&dev->rx_dropped);
110301+ atomic_long_inc_unchecked(&dev->rx_dropped);
110302 kfree_skb(skb);
110303 return NET_RX_DROP;
110304 }
110305 }
110306
110307 if (unlikely(!is_skb_forwardable(dev, skb))) {
110308- atomic_long_inc(&dev->rx_dropped);
110309+ atomic_long_inc_unchecked(&dev->rx_dropped);
110310 kfree_skb(skb);
110311 return NET_RX_DROP;
110312 }
110313@@ -2987,7 +2987,7 @@ recursion_alert:
110314 drop:
110315 rcu_read_unlock_bh();
110316
110317- atomic_long_inc(&dev->tx_dropped);
110318+ atomic_long_inc_unchecked(&dev->tx_dropped);
110319 kfree_skb_list(skb);
110320 return rc;
110321 out:
110322@@ -3336,7 +3336,7 @@ enqueue:
110323
110324 local_irq_restore(flags);
110325
110326- atomic_long_inc(&skb->dev->rx_dropped);
110327+ atomic_long_inc_unchecked(&skb->dev->rx_dropped);
110328 kfree_skb(skb);
110329 return NET_RX_DROP;
110330 }
110331@@ -3413,7 +3413,7 @@ int netif_rx_ni(struct sk_buff *skb)
110332 }
110333 EXPORT_SYMBOL(netif_rx_ni);
110334
110335-static void net_tx_action(struct softirq_action *h)
110336+static __latent_entropy void net_tx_action(void)
110337 {
110338 struct softnet_data *sd = this_cpu_ptr(&softnet_data);
110339
110340@@ -3751,7 +3751,7 @@ ncls:
110341 ret = pt_prev->func(skb, skb->dev, pt_prev, orig_dev);
110342 } else {
110343 drop:
110344- atomic_long_inc(&skb->dev->rx_dropped);
110345+ atomic_long_inc_unchecked(&skb->dev->rx_dropped);
110346 kfree_skb(skb);
110347 /* Jamal, now you will not able to escape explaining
110348 * me how you were going to use this. :-)
110349@@ -4640,7 +4640,7 @@ out_unlock:
110350 return work;
110351 }
110352
110353-static void net_rx_action(struct softirq_action *h)
110354+static __latent_entropy void net_rx_action(void)
110355 {
110356 struct softnet_data *sd = this_cpu_ptr(&softnet_data);
110357 unsigned long time_limit = jiffies + 2;
110358@@ -6676,8 +6676,8 @@ struct rtnl_link_stats64 *dev_get_stats(struct net_device *dev,
110359 } else {
110360 netdev_stats_to_stats64(storage, &dev->stats);
110361 }
110362- storage->rx_dropped += atomic_long_read(&dev->rx_dropped);
110363- storage->tx_dropped += atomic_long_read(&dev->tx_dropped);
110364+ storage->rx_dropped += atomic_long_read_unchecked(&dev->rx_dropped);
110365+ storage->tx_dropped += atomic_long_read_unchecked(&dev->tx_dropped);
110366 return storage;
110367 }
110368 EXPORT_SYMBOL(dev_get_stats);
110369diff --git a/net/core/dev_ioctl.c b/net/core/dev_ioctl.c
110370index b94b1d2..da3ed7c 100644
110371--- a/net/core/dev_ioctl.c
110372+++ b/net/core/dev_ioctl.c
110373@@ -368,8 +368,13 @@ void dev_load(struct net *net, const char *name)
110374 no_module = !dev;
110375 if (no_module && capable(CAP_NET_ADMIN))
110376 no_module = request_module("netdev-%s", name);
110377- if (no_module && capable(CAP_SYS_MODULE))
110378+ if (no_module && capable(CAP_SYS_MODULE)) {
110379+#ifdef CONFIG_GRKERNSEC_MODHARDEN
110380+ ___request_module(true, "grsec_modharden_netdev", "%s", name);
110381+#else
110382 request_module("%s", name);
110383+#endif
110384+ }
110385 }
110386 EXPORT_SYMBOL(dev_load);
110387
110388diff --git a/net/core/filter.c b/net/core/filter.c
110389index f6bdc2b..76eba8e 100644
110390--- a/net/core/filter.c
110391+++ b/net/core/filter.c
110392@@ -533,7 +533,11 @@ do_pass:
110393
110394 /* Unknown instruction. */
110395 default:
110396- goto err;
110397+ WARN(1, KERN_ALERT "Unknown sock filter code:%u jt:%u tf:%u k:%u\n",
110398+ fp->code, fp->jt, fp->jf, fp->k);
110399+ kfree(addrs);
110400+ BUG();
110401+ return -EINVAL;
110402 }
110403
110404 insn++;
110405@@ -577,7 +581,7 @@ static int check_load_and_stores(const struct sock_filter *filter, int flen)
110406 u16 *masks, memvalid = 0; /* One bit per cell, 16 cells */
110407 int pc, ret = 0;
110408
110409- BUILD_BUG_ON(BPF_MEMWORDS > 16);
110410+ BUILD_BUG_ON(BPF_MEMWORDS != 16);
110411
110412 masks = kmalloc_array(flen, sizeof(*masks), GFP_KERNEL);
110413 if (!masks)
110414@@ -992,7 +996,7 @@ int bpf_prog_create(struct bpf_prog **pfp, struct sock_fprog_kern *fprog)
110415 if (!fp)
110416 return -ENOMEM;
110417
110418- memcpy(fp->insns, fprog->filter, fsize);
110419+ memcpy(fp->insns, (void __force_kernel *)fprog->filter, fsize);
110420
110421 fp->len = fprog->len;
110422 /* Since unattached filters are not copied back to user
110423diff --git a/net/core/flow.c b/net/core/flow.c
110424index 1033725..340f65d 100644
110425--- a/net/core/flow.c
110426+++ b/net/core/flow.c
110427@@ -65,7 +65,7 @@ static void flow_cache_new_hashrnd(unsigned long arg)
110428 static int flow_entry_valid(struct flow_cache_entry *fle,
110429 struct netns_xfrm *xfrm)
110430 {
110431- if (atomic_read(&xfrm->flow_cache_genid) != fle->genid)
110432+ if (atomic_read_unchecked(&xfrm->flow_cache_genid) != fle->genid)
110433 return 0;
110434 if (fle->object && !fle->object->ops->check(fle->object))
110435 return 0;
110436@@ -242,7 +242,7 @@ flow_cache_lookup(struct net *net, const struct flowi *key, u16 family, u8 dir,
110437 hlist_add_head(&fle->u.hlist, &fcp->hash_table[hash]);
110438 fcp->hash_count++;
110439 }
110440- } else if (likely(fle->genid == atomic_read(&net->xfrm.flow_cache_genid))) {
110441+ } else if (likely(fle->genid == atomic_read_unchecked(&net->xfrm.flow_cache_genid))) {
110442 flo = fle->object;
110443 if (!flo)
110444 goto ret_object;
110445@@ -263,7 +263,7 @@ nocache:
110446 }
110447 flo = resolver(net, key, family, dir, flo, ctx);
110448 if (fle) {
110449- fle->genid = atomic_read(&net->xfrm.flow_cache_genid);
110450+ fle->genid = atomic_read_unchecked(&net->xfrm.flow_cache_genid);
110451 if (!IS_ERR(flo))
110452 fle->object = flo;
110453 else
110454diff --git a/net/core/neighbour.c b/net/core/neighbour.c
110455index 70fe9e1..c55e69d 100644
110456--- a/net/core/neighbour.c
110457+++ b/net/core/neighbour.c
110458@@ -971,6 +971,8 @@ int __neigh_event_send(struct neighbour *neigh, struct sk_buff *skb)
110459 rc = 0;
110460 if (neigh->nud_state & (NUD_CONNECTED | NUD_DELAY | NUD_PROBE))
110461 goto out_unlock_bh;
110462+ if (neigh->dead)
110463+ goto out_dead;
110464
110465 if (!(neigh->nud_state & (NUD_STALE | NUD_INCOMPLETE))) {
110466 if (NEIGH_VAR(neigh->parms, MCAST_PROBES) +
110467@@ -1027,6 +1029,13 @@ out_unlock_bh:
110468 write_unlock(&neigh->lock);
110469 local_bh_enable();
110470 return rc;
110471+
110472+out_dead:
110473+ if (neigh->nud_state & NUD_STALE)
110474+ goto out_unlock_bh;
110475+ write_unlock_bh(&neigh->lock);
110476+ kfree_skb(skb);
110477+ return 1;
110478 }
110479 EXPORT_SYMBOL(__neigh_event_send);
110480
110481@@ -1090,6 +1099,8 @@ int neigh_update(struct neighbour *neigh, const u8 *lladdr, u8 new,
110482 if (!(flags & NEIGH_UPDATE_F_ADMIN) &&
110483 (old & (NUD_NOARP | NUD_PERMANENT)))
110484 goto out;
110485+ if (neigh->dead)
110486+ goto out;
110487
110488 if (!(new & NUD_VALID)) {
110489 neigh_del_timer(neigh);
110490@@ -1239,6 +1250,8 @@ EXPORT_SYMBOL(neigh_update);
110491 */
110492 void __neigh_set_probe_once(struct neighbour *neigh)
110493 {
110494+ if (neigh->dead)
110495+ return;
110496 neigh->updated = jiffies;
110497 if (!(neigh->nud_state & NUD_FAILED))
110498 return;
110499@@ -2806,7 +2819,7 @@ static int proc_unres_qlen(struct ctl_table *ctl, int write,
110500 void __user *buffer, size_t *lenp, loff_t *ppos)
110501 {
110502 int size, ret;
110503- struct ctl_table tmp = *ctl;
110504+ ctl_table_no_const tmp = *ctl;
110505
110506 tmp.extra1 = &zero;
110507 tmp.extra2 = &unres_qlen_max;
110508@@ -2868,7 +2881,7 @@ static int neigh_proc_dointvec_zero_intmax(struct ctl_table *ctl, int write,
110509 void __user *buffer,
110510 size_t *lenp, loff_t *ppos)
110511 {
110512- struct ctl_table tmp = *ctl;
110513+ ctl_table_no_const tmp = *ctl;
110514 int ret;
110515
110516 tmp.extra1 = &zero;
110517diff --git a/net/core/net-procfs.c b/net/core/net-procfs.c
110518index 2bf8329..2eb1423 100644
110519--- a/net/core/net-procfs.c
110520+++ b/net/core/net-procfs.c
110521@@ -79,7 +79,13 @@ static void dev_seq_printf_stats(struct seq_file *seq, struct net_device *dev)
110522 struct rtnl_link_stats64 temp;
110523 const struct rtnl_link_stats64 *stats = dev_get_stats(dev, &temp);
110524
110525- seq_printf(seq, "%6s: %7llu %7llu %4llu %4llu %4llu %5llu %10llu %9llu "
110526+ if (gr_proc_is_restricted())
110527+ seq_printf(seq, "%6s: %7llu %7llu %4llu %4llu %4llu %5llu %10llu %9llu "
110528+ "%8llu %7llu %4llu %4llu %4llu %5llu %7llu %10llu\n",
110529+ dev->name, 0ULL, 0ULL, 0ULL, 0ULL, 0ULL, 0ULL, 0ULL, 0ULL, 0ULL, 0ULL,
110530+ 0ULL, 0ULL, 0ULL, 0ULL, 0ULL, 0ULL);
110531+ else
110532+ seq_printf(seq, "%6s: %7llu %7llu %4llu %4llu %4llu %5llu %10llu %9llu "
110533 "%8llu %7llu %4llu %4llu %4llu %5llu %7llu %10llu\n",
110534 dev->name, stats->rx_bytes, stats->rx_packets,
110535 stats->rx_errors,
110536@@ -166,7 +172,7 @@ static int softnet_seq_show(struct seq_file *seq, void *v)
110537 return 0;
110538 }
110539
110540-static const struct seq_operations dev_seq_ops = {
110541+const struct seq_operations dev_seq_ops = {
110542 .start = dev_seq_start,
110543 .next = dev_seq_next,
110544 .stop = dev_seq_stop,
110545@@ -196,7 +202,7 @@ static const struct seq_operations softnet_seq_ops = {
110546
110547 static int softnet_seq_open(struct inode *inode, struct file *file)
110548 {
110549- return seq_open(file, &softnet_seq_ops);
110550+ return seq_open_restrict(file, &softnet_seq_ops);
110551 }
110552
110553 static const struct file_operations softnet_seq_fops = {
110554@@ -283,8 +289,13 @@ static int ptype_seq_show(struct seq_file *seq, void *v)
110555 else
110556 seq_printf(seq, "%04x", ntohs(pt->type));
110557
110558+#ifdef CONFIG_GRKERNSEC_HIDESYM
110559+ seq_printf(seq, " %-8s %pf\n",
110560+ pt->dev ? pt->dev->name : "", NULL);
110561+#else
110562 seq_printf(seq, " %-8s %pf\n",
110563 pt->dev ? pt->dev->name : "", pt->func);
110564+#endif
110565 }
110566
110567 return 0;
110568diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c
110569index f2aa73b..0d1a1ea 100644
110570--- a/net/core/net-sysfs.c
110571+++ b/net/core/net-sysfs.c
110572@@ -279,7 +279,7 @@ static ssize_t carrier_changes_show(struct device *dev,
110573 {
110574 struct net_device *netdev = to_net_dev(dev);
110575 return sprintf(buf, fmt_dec,
110576- atomic_read(&netdev->carrier_changes));
110577+ atomic_read_unchecked(&netdev->carrier_changes));
110578 }
110579 static DEVICE_ATTR_RO(carrier_changes);
110580
110581diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c
110582index 70d3450..eb7c528 100644
110583--- a/net/core/net_namespace.c
110584+++ b/net/core/net_namespace.c
110585@@ -663,7 +663,7 @@ static int __register_pernet_operations(struct list_head *list,
110586 int error;
110587 LIST_HEAD(net_exit_list);
110588
110589- list_add_tail(&ops->list, list);
110590+ pax_list_add_tail((struct list_head *)&ops->list, list);
110591 if (ops->init || (ops->id && ops->size)) {
110592 for_each_net(net) {
110593 error = ops_init(ops, net);
110594@@ -676,7 +676,7 @@ static int __register_pernet_operations(struct list_head *list,
110595
110596 out_undo:
110597 /* If I have an error cleanup all namespaces I initialized */
110598- list_del(&ops->list);
110599+ pax_list_del((struct list_head *)&ops->list);
110600 ops_exit_list(ops, &net_exit_list);
110601 ops_free_list(ops, &net_exit_list);
110602 return error;
110603@@ -687,7 +687,7 @@ static void __unregister_pernet_operations(struct pernet_operations *ops)
110604 struct net *net;
110605 LIST_HEAD(net_exit_list);
110606
110607- list_del(&ops->list);
110608+ pax_list_del((struct list_head *)&ops->list);
110609 for_each_net(net)
110610 list_add_tail(&net->exit_list, &net_exit_list);
110611 ops_exit_list(ops, &net_exit_list);
110612@@ -821,7 +821,7 @@ int register_pernet_device(struct pernet_operations *ops)
110613 mutex_lock(&net_mutex);
110614 error = register_pernet_operations(&pernet_list, ops);
110615 if (!error && (first_device == &pernet_list))
110616- first_device = &ops->list;
110617+ first_device = (struct list_head *)&ops->list;
110618 mutex_unlock(&net_mutex);
110619 return error;
110620 }
110621diff --git a/net/core/netpoll.c b/net/core/netpoll.c
110622index c126a87..10ad89d 100644
110623--- a/net/core/netpoll.c
110624+++ b/net/core/netpoll.c
110625@@ -377,7 +377,7 @@ void netpoll_send_udp(struct netpoll *np, const char *msg, int len)
110626 struct udphdr *udph;
110627 struct iphdr *iph;
110628 struct ethhdr *eth;
110629- static atomic_t ip_ident;
110630+ static atomic_unchecked_t ip_ident;
110631 struct ipv6hdr *ip6h;
110632
110633 udp_len = len + sizeof(*udph);
110634@@ -448,7 +448,7 @@ void netpoll_send_udp(struct netpoll *np, const char *msg, int len)
110635 put_unaligned(0x45, (unsigned char *)iph);
110636 iph->tos = 0;
110637 put_unaligned(htons(ip_len), &(iph->tot_len));
110638- iph->id = htons(atomic_inc_return(&ip_ident));
110639+ iph->id = htons(atomic_inc_return_unchecked(&ip_ident));
110640 iph->frag_off = 0;
110641 iph->ttl = 64;
110642 iph->protocol = IPPROTO_UDP;
110643diff --git a/net/core/pktgen.c b/net/core/pktgen.c
110644index 508155b..fad080f 100644
110645--- a/net/core/pktgen.c
110646+++ b/net/core/pktgen.c
110647@@ -3755,7 +3755,7 @@ static int __net_init pg_net_init(struct net *net)
110648 pn->net = net;
110649 INIT_LIST_HEAD(&pn->pktgen_threads);
110650 pn->pktgen_exiting = false;
110651- pn->proc_dir = proc_mkdir(PG_PROC_DIR, pn->net->proc_net);
110652+ pn->proc_dir = proc_mkdir_restrict(PG_PROC_DIR, pn->net->proc_net);
110653 if (!pn->proc_dir) {
110654 pr_warn("cannot create /proc/net/%s\n", PG_PROC_DIR);
110655 return -ENODEV;
110656diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
110657index a2b90e1..7882f75 100644
110658--- a/net/core/rtnetlink.c
110659+++ b/net/core/rtnetlink.c
110660@@ -61,7 +61,7 @@ struct rtnl_link {
110661 rtnl_doit_func doit;
110662 rtnl_dumpit_func dumpit;
110663 rtnl_calcit_func calcit;
110664-};
110665+} __no_const;
110666
110667 static DEFINE_MUTEX(rtnl_mutex);
110668
110669@@ -307,10 +307,13 @@ int __rtnl_link_register(struct rtnl_link_ops *ops)
110670 * to use the ops for creating device. So do not
110671 * fill up dellink as well. That disables rtnl_dellink.
110672 */
110673- if (ops->setup && !ops->dellink)
110674- ops->dellink = unregister_netdevice_queue;
110675+ if (ops->setup && !ops->dellink) {
110676+ pax_open_kernel();
110677+ *(void **)&ops->dellink = unregister_netdevice_queue;
110678+ pax_close_kernel();
110679+ }
110680
110681- list_add_tail(&ops->list, &link_ops);
110682+ pax_list_add_tail((struct list_head *)&ops->list, &link_ops);
110683 return 0;
110684 }
110685 EXPORT_SYMBOL_GPL(__rtnl_link_register);
110686@@ -357,7 +360,7 @@ void __rtnl_link_unregister(struct rtnl_link_ops *ops)
110687 for_each_net(net) {
110688 __rtnl_kill_links(net, ops);
110689 }
110690- list_del(&ops->list);
110691+ pax_list_del((struct list_head *)&ops->list);
110692 }
110693 EXPORT_SYMBOL_GPL(__rtnl_link_unregister);
110694
110695@@ -1047,7 +1050,7 @@ static int rtnl_fill_ifinfo(struct sk_buff *skb, struct net_device *dev,
110696 (dev->ifalias &&
110697 nla_put_string(skb, IFLA_IFALIAS, dev->ifalias)) ||
110698 nla_put_u32(skb, IFLA_CARRIER_CHANGES,
110699- atomic_read(&dev->carrier_changes)))
110700+ atomic_read_unchecked(&dev->carrier_changes)))
110701 goto nla_put_failure;
110702
110703 if (1) {
110704diff --git a/net/core/scm.c b/net/core/scm.c
110705index 3b6899b..cf36238 100644
110706--- a/net/core/scm.c
110707+++ b/net/core/scm.c
110708@@ -209,7 +209,7 @@ EXPORT_SYMBOL(__scm_send);
110709 int put_cmsg(struct msghdr * msg, int level, int type, int len, void *data)
110710 {
110711 struct cmsghdr __user *cm
110712- = (__force struct cmsghdr __user *)msg->msg_control;
110713+ = (struct cmsghdr __force_user *)msg->msg_control;
110714 struct cmsghdr cmhdr;
110715 int cmlen = CMSG_LEN(len);
110716 int err;
110717@@ -232,7 +232,7 @@ int put_cmsg(struct msghdr * msg, int level, int type, int len, void *data)
110718 err = -EFAULT;
110719 if (copy_to_user(cm, &cmhdr, sizeof cmhdr))
110720 goto out;
110721- if (copy_to_user(CMSG_DATA(cm), data, cmlen - sizeof(struct cmsghdr)))
110722+ if (copy_to_user((void __force_user *)CMSG_DATA((void __force_kernel *)cm), data, cmlen - sizeof(struct cmsghdr)))
110723 goto out;
110724 cmlen = CMSG_SPACE(len);
110725 if (msg->msg_controllen < cmlen)
110726@@ -248,7 +248,7 @@ EXPORT_SYMBOL(put_cmsg);
110727 void scm_detach_fds(struct msghdr *msg, struct scm_cookie *scm)
110728 {
110729 struct cmsghdr __user *cm
110730- = (__force struct cmsghdr __user*)msg->msg_control;
110731+ = (struct cmsghdr __force_user *)msg->msg_control;
110732
110733 int fdmax = 0;
110734 int fdnum = scm->fp->count;
110735@@ -268,7 +268,7 @@ void scm_detach_fds(struct msghdr *msg, struct scm_cookie *scm)
110736 if (fdnum < fdmax)
110737 fdmax = fdnum;
110738
110739- for (i=0, cmfptr=(__force int __user *)CMSG_DATA(cm); i<fdmax;
110740+ for (i=0, cmfptr=(int __force_user *)CMSG_DATA((void __force_kernel *)cm); i<fdmax;
110741 i++, cmfptr++)
110742 {
110743 struct socket *sock;
110744diff --git a/net/core/skbuff.c b/net/core/skbuff.c
110745index e9f9a15..6eb024e 100644
110746--- a/net/core/skbuff.c
110747+++ b/net/core/skbuff.c
110748@@ -2139,7 +2139,7 @@ EXPORT_SYMBOL(__skb_checksum);
110749 __wsum skb_checksum(const struct sk_buff *skb, int offset,
110750 int len, __wsum csum)
110751 {
110752- const struct skb_checksum_ops ops = {
110753+ static const struct skb_checksum_ops ops = {
110754 .update = csum_partial_ext,
110755 .combine = csum_block_add_ext,
110756 };
110757@@ -3379,12 +3379,14 @@ void __init skb_init(void)
110758 skbuff_head_cache = kmem_cache_create("skbuff_head_cache",
110759 sizeof(struct sk_buff),
110760 0,
110761- SLAB_HWCACHE_ALIGN|SLAB_PANIC,
110762+ SLAB_HWCACHE_ALIGN|SLAB_PANIC|
110763+ SLAB_NO_SANITIZE,
110764 NULL);
110765 skbuff_fclone_cache = kmem_cache_create("skbuff_fclone_cache",
110766 sizeof(struct sk_buff_fclones),
110767 0,
110768- SLAB_HWCACHE_ALIGN|SLAB_PANIC,
110769+ SLAB_HWCACHE_ALIGN|SLAB_PANIC|
110770+ SLAB_NO_SANITIZE,
110771 NULL);
110772 }
110773
110774diff --git a/net/core/sock.c b/net/core/sock.c
110775index 71e3e5f..ab90920 100644
110776--- a/net/core/sock.c
110777+++ b/net/core/sock.c
110778@@ -443,7 +443,7 @@ int sock_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
110779 struct sk_buff_head *list = &sk->sk_receive_queue;
110780
110781 if (atomic_read(&sk->sk_rmem_alloc) >= sk->sk_rcvbuf) {
110782- atomic_inc(&sk->sk_drops);
110783+ atomic_inc_unchecked(&sk->sk_drops);
110784 trace_sock_rcvqueue_full(sk, skb);
110785 return -ENOMEM;
110786 }
110787@@ -453,7 +453,7 @@ int sock_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
110788 return err;
110789
110790 if (!sk_rmem_schedule(sk, skb, skb->truesize)) {
110791- atomic_inc(&sk->sk_drops);
110792+ atomic_inc_unchecked(&sk->sk_drops);
110793 return -ENOBUFS;
110794 }
110795
110796@@ -466,7 +466,7 @@ int sock_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
110797 skb_dst_force(skb);
110798
110799 spin_lock_irqsave(&list->lock, flags);
110800- skb->dropcount = atomic_read(&sk->sk_drops);
110801+ skb->dropcount = atomic_read_unchecked(&sk->sk_drops);
110802 __skb_queue_tail(list, skb);
110803 spin_unlock_irqrestore(&list->lock, flags);
110804
110805@@ -486,7 +486,7 @@ int sk_receive_skb(struct sock *sk, struct sk_buff *skb, const int nested)
110806 skb->dev = NULL;
110807
110808 if (sk_rcvqueues_full(sk, sk->sk_rcvbuf)) {
110809- atomic_inc(&sk->sk_drops);
110810+ atomic_inc_unchecked(&sk->sk_drops);
110811 goto discard_and_relse;
110812 }
110813 if (nested)
110814@@ -504,7 +504,7 @@ int sk_receive_skb(struct sock *sk, struct sk_buff *skb, const int nested)
110815 mutex_release(&sk->sk_lock.dep_map, 1, _RET_IP_);
110816 } else if (sk_add_backlog(sk, skb, sk->sk_rcvbuf)) {
110817 bh_unlock_sock(sk);
110818- atomic_inc(&sk->sk_drops);
110819+ atomic_inc_unchecked(&sk->sk_drops);
110820 goto discard_and_relse;
110821 }
110822
110823@@ -910,6 +910,7 @@ set_rcvbuf:
110824 }
110825 break;
110826
110827+#ifndef GRKERNSEC_BPF_HARDEN
110828 case SO_ATTACH_BPF:
110829 ret = -EINVAL;
110830 if (optlen == sizeof(u32)) {
110831@@ -922,7 +923,7 @@ set_rcvbuf:
110832 ret = sk_attach_bpf(ufd, sk);
110833 }
110834 break;
110835-
110836+#endif
110837 case SO_DETACH_FILTER:
110838 ret = sk_detach_filter(sk);
110839 break;
110840@@ -1026,12 +1027,12 @@ int sock_getsockopt(struct socket *sock, int level, int optname,
110841 struct timeval tm;
110842 } v;
110843
110844- int lv = sizeof(int);
110845- int len;
110846+ unsigned int lv = sizeof(int);
110847+ unsigned int len;
110848
110849 if (get_user(len, optlen))
110850 return -EFAULT;
110851- if (len < 0)
110852+ if (len > INT_MAX)
110853 return -EINVAL;
110854
110855 memset(&v, 0, sizeof(v));
110856@@ -1169,11 +1170,11 @@ int sock_getsockopt(struct socket *sock, int level, int optname,
110857
110858 case SO_PEERNAME:
110859 {
110860- char address[128];
110861+ char address[_K_SS_MAXSIZE];
110862
110863 if (sock->ops->getname(sock, (struct sockaddr *)address, &lv, 2))
110864 return -ENOTCONN;
110865- if (lv < len)
110866+ if (lv < len || sizeof address < len)
110867 return -EINVAL;
110868 if (copy_to_user(optval, address, len))
110869 return -EFAULT;
110870@@ -1258,7 +1259,7 @@ int sock_getsockopt(struct socket *sock, int level, int optname,
110871
110872 if (len > lv)
110873 len = lv;
110874- if (copy_to_user(optval, &v, len))
110875+ if (len > sizeof(v) || copy_to_user(optval, &v, len))
110876 return -EFAULT;
110877 lenout:
110878 if (put_user(len, optlen))
110879@@ -2375,7 +2376,7 @@ void sock_init_data(struct socket *sock, struct sock *sk)
110880 */
110881 smp_wmb();
110882 atomic_set(&sk->sk_refcnt, 1);
110883- atomic_set(&sk->sk_drops, 0);
110884+ atomic_set_unchecked(&sk->sk_drops, 0);
110885 }
110886 EXPORT_SYMBOL(sock_init_data);
110887
110888@@ -2503,6 +2504,7 @@ void sock_enable_timestamp(struct sock *sk, int flag)
110889 int sock_recv_errqueue(struct sock *sk, struct msghdr *msg, int len,
110890 int level, int type)
110891 {
110892+ struct sock_extended_err ee;
110893 struct sock_exterr_skb *serr;
110894 struct sk_buff *skb;
110895 int copied, err;
110896@@ -2524,7 +2526,8 @@ int sock_recv_errqueue(struct sock *sk, struct msghdr *msg, int len,
110897 sock_recv_timestamp(msg, sk, skb);
110898
110899 serr = SKB_EXT_ERR(skb);
110900- put_cmsg(msg, level, type, sizeof(serr->ee), &serr->ee);
110901+ ee = serr->ee;
110902+ put_cmsg(msg, level, type, sizeof ee, &ee);
110903
110904 msg->msg_flags |= MSG_ERRQUEUE;
110905 err = copied;
110906diff --git a/net/core/sock_diag.c b/net/core/sock_diag.c
110907index ad704c7..ca48aff 100644
110908--- a/net/core/sock_diag.c
110909+++ b/net/core/sock_diag.c
110910@@ -9,26 +9,33 @@
110911 #include <linux/inet_diag.h>
110912 #include <linux/sock_diag.h>
110913
110914-static const struct sock_diag_handler *sock_diag_handlers[AF_MAX];
110915+static const struct sock_diag_handler *sock_diag_handlers[AF_MAX] __read_only;
110916 static int (*inet_rcv_compat)(struct sk_buff *skb, struct nlmsghdr *nlh);
110917 static DEFINE_MUTEX(sock_diag_table_mutex);
110918
110919 int sock_diag_check_cookie(void *sk, __u32 *cookie)
110920 {
110921+#ifndef CONFIG_GRKERNSEC_HIDESYM
110922 if ((cookie[0] != INET_DIAG_NOCOOKIE ||
110923 cookie[1] != INET_DIAG_NOCOOKIE) &&
110924 ((u32)(unsigned long)sk != cookie[0] ||
110925 (u32)((((unsigned long)sk) >> 31) >> 1) != cookie[1]))
110926 return -ESTALE;
110927 else
110928+#endif
110929 return 0;
110930 }
110931 EXPORT_SYMBOL_GPL(sock_diag_check_cookie);
110932
110933 void sock_diag_save_cookie(void *sk, __u32 *cookie)
110934 {
110935+#ifdef CONFIG_GRKERNSEC_HIDESYM
110936+ cookie[0] = 0;
110937+ cookie[1] = 0;
110938+#else
110939 cookie[0] = (u32)(unsigned long)sk;
110940 cookie[1] = (u32)(((unsigned long)sk >> 31) >> 1);
110941+#endif
110942 }
110943 EXPORT_SYMBOL_GPL(sock_diag_save_cookie);
110944
110945@@ -110,8 +117,11 @@ int sock_diag_register(const struct sock_diag_handler *hndl)
110946 mutex_lock(&sock_diag_table_mutex);
110947 if (sock_diag_handlers[hndl->family])
110948 err = -EBUSY;
110949- else
110950+ else {
110951+ pax_open_kernel();
110952 sock_diag_handlers[hndl->family] = hndl;
110953+ pax_close_kernel();
110954+ }
110955 mutex_unlock(&sock_diag_table_mutex);
110956
110957 return err;
110958@@ -127,7 +137,9 @@ void sock_diag_unregister(const struct sock_diag_handler *hnld)
110959
110960 mutex_lock(&sock_diag_table_mutex);
110961 BUG_ON(sock_diag_handlers[family] != hnld);
110962+ pax_open_kernel();
110963 sock_diag_handlers[family] = NULL;
110964+ pax_close_kernel();
110965 mutex_unlock(&sock_diag_table_mutex);
110966 }
110967 EXPORT_SYMBOL_GPL(sock_diag_unregister);
110968diff --git a/net/core/sysctl_net_core.c b/net/core/sysctl_net_core.c
110969index 8ce351f..2c388f7 100644
110970--- a/net/core/sysctl_net_core.c
110971+++ b/net/core/sysctl_net_core.c
110972@@ -36,7 +36,7 @@ static int rps_sock_flow_sysctl(struct ctl_table *table, int write,
110973 {
110974 unsigned int orig_size, size;
110975 int ret, i;
110976- struct ctl_table tmp = {
110977+ ctl_table_no_const tmp = {
110978 .data = &size,
110979 .maxlen = sizeof(size),
110980 .mode = table->mode
110981@@ -204,7 +204,7 @@ static int set_default_qdisc(struct ctl_table *table, int write,
110982 void __user *buffer, size_t *lenp, loff_t *ppos)
110983 {
110984 char id[IFNAMSIZ];
110985- struct ctl_table tbl = {
110986+ ctl_table_no_const tbl = {
110987 .data = id,
110988 .maxlen = IFNAMSIZ,
110989 };
110990@@ -222,7 +222,7 @@ static int set_default_qdisc(struct ctl_table *table, int write,
110991 static int proc_do_rss_key(struct ctl_table *table, int write,
110992 void __user *buffer, size_t *lenp, loff_t *ppos)
110993 {
110994- struct ctl_table fake_table;
110995+ ctl_table_no_const fake_table;
110996 char buf[NETDEV_RSS_KEY_LEN * 3];
110997
110998 snprintf(buf, sizeof(buf), "%*phC", NETDEV_RSS_KEY_LEN, netdev_rss_key);
110999@@ -286,7 +286,7 @@ static struct ctl_table net_core_table[] = {
111000 .mode = 0444,
111001 .proc_handler = proc_do_rss_key,
111002 },
111003-#ifdef CONFIG_BPF_JIT
111004+#if defined(CONFIG_BPF_JIT) && !defined(CONFIG_GRKERNSEC_BPF_HARDEN)
111005 {
111006 .procname = "bpf_jit_enable",
111007 .data = &bpf_jit_enable,
111008@@ -411,13 +411,12 @@ static struct ctl_table netns_core_table[] = {
111009
111010 static __net_init int sysctl_core_net_init(struct net *net)
111011 {
111012- struct ctl_table *tbl;
111013+ ctl_table_no_const *tbl = NULL;
111014
111015 net->core.sysctl_somaxconn = SOMAXCONN;
111016
111017- tbl = netns_core_table;
111018 if (!net_eq(net, &init_net)) {
111019- tbl = kmemdup(tbl, sizeof(netns_core_table), GFP_KERNEL);
111020+ tbl = kmemdup(netns_core_table, sizeof(netns_core_table), GFP_KERNEL);
111021 if (tbl == NULL)
111022 goto err_dup;
111023
111024@@ -427,17 +426,16 @@ static __net_init int sysctl_core_net_init(struct net *net)
111025 if (net->user_ns != &init_user_ns) {
111026 tbl[0].procname = NULL;
111027 }
111028- }
111029-
111030- net->core.sysctl_hdr = register_net_sysctl(net, "net/core", tbl);
111031+ net->core.sysctl_hdr = register_net_sysctl(net, "net/core", tbl);
111032+ } else
111033+ net->core.sysctl_hdr = register_net_sysctl(net, "net/core", netns_core_table);
111034 if (net->core.sysctl_hdr == NULL)
111035 goto err_reg;
111036
111037 return 0;
111038
111039 err_reg:
111040- if (tbl != netns_core_table)
111041- kfree(tbl);
111042+ kfree(tbl);
111043 err_dup:
111044 return -ENOMEM;
111045 }
111046@@ -452,7 +450,7 @@ static __net_exit void sysctl_core_net_exit(struct net *net)
111047 kfree(tbl);
111048 }
111049
111050-static __net_initdata struct pernet_operations sysctl_core_ops = {
111051+static __net_initconst struct pernet_operations sysctl_core_ops = {
111052 .init = sysctl_core_net_init,
111053 .exit = sysctl_core_net_exit,
111054 };
111055diff --git a/net/decnet/af_decnet.c b/net/decnet/af_decnet.c
111056index 8102286..a0c2755 100644
111057--- a/net/decnet/af_decnet.c
111058+++ b/net/decnet/af_decnet.c
111059@@ -466,6 +466,7 @@ static struct proto dn_proto = {
111060 .sysctl_rmem = sysctl_decnet_rmem,
111061 .max_header = DN_MAX_NSP_DATA_HEADER + 64,
111062 .obj_size = sizeof(struct dn_sock),
111063+ .slab_flags = SLAB_USERCOPY,
111064 };
111065
111066 static struct sock *dn_alloc_sock(struct net *net, struct socket *sock, gfp_t gfp)
111067diff --git a/net/decnet/dn_dev.c b/net/decnet/dn_dev.c
111068index b2c26b0..41f803e 100644
111069--- a/net/decnet/dn_dev.c
111070+++ b/net/decnet/dn_dev.c
111071@@ -201,7 +201,7 @@ static struct dn_dev_sysctl_table {
111072 .extra1 = &min_t3,
111073 .extra2 = &max_t3
111074 },
111075- {0}
111076+ { }
111077 },
111078 };
111079
111080diff --git a/net/decnet/sysctl_net_decnet.c b/net/decnet/sysctl_net_decnet.c
111081index 5325b54..a0d4d69 100644
111082--- a/net/decnet/sysctl_net_decnet.c
111083+++ b/net/decnet/sysctl_net_decnet.c
111084@@ -174,7 +174,7 @@ static int dn_node_address_handler(struct ctl_table *table, int write,
111085
111086 if (len > *lenp) len = *lenp;
111087
111088- if (copy_to_user(buffer, addr, len))
111089+ if (len > sizeof addr || copy_to_user(buffer, addr, len))
111090 return -EFAULT;
111091
111092 *lenp = len;
111093@@ -237,7 +237,7 @@ static int dn_def_dev_handler(struct ctl_table *table, int write,
111094
111095 if (len > *lenp) len = *lenp;
111096
111097- if (copy_to_user(buffer, devname, len))
111098+ if (len > sizeof devname || copy_to_user(buffer, devname, len))
111099 return -EFAULT;
111100
111101 *lenp = len;
111102diff --git a/net/hsr/hsr_netlink.c b/net/hsr/hsr_netlink.c
111103index a2c7e4c..3dc9f67 100644
111104--- a/net/hsr/hsr_netlink.c
111105+++ b/net/hsr/hsr_netlink.c
111106@@ -102,7 +102,7 @@ nla_put_failure:
111107 return -EMSGSIZE;
111108 }
111109
111110-static struct rtnl_link_ops hsr_link_ops __read_mostly = {
111111+static struct rtnl_link_ops hsr_link_ops = {
111112 .kind = "hsr",
111113 .maxtype = IFLA_HSR_MAX,
111114 .policy = hsr_policy,
111115diff --git a/net/ieee802154/6lowpan/core.c b/net/ieee802154/6lowpan/core.c
111116index 055fbb7..c0dbe60 100644
111117--- a/net/ieee802154/6lowpan/core.c
111118+++ b/net/ieee802154/6lowpan/core.c
111119@@ -217,7 +217,7 @@ static void lowpan_dellink(struct net_device *dev, struct list_head *head)
111120 dev_put(real_dev);
111121 }
111122
111123-static struct rtnl_link_ops lowpan_link_ops __read_mostly = {
111124+static struct rtnl_link_ops lowpan_link_ops = {
111125 .kind = "lowpan",
111126 .priv_size = sizeof(struct lowpan_dev_info),
111127 .setup = lowpan_setup,
111128diff --git a/net/ieee802154/6lowpan/reassembly.c b/net/ieee802154/6lowpan/reassembly.c
111129index f46e4d1..30231f1 100644
111130--- a/net/ieee802154/6lowpan/reassembly.c
111131+++ b/net/ieee802154/6lowpan/reassembly.c
111132@@ -435,14 +435,13 @@ static struct ctl_table lowpan_frags_ctl_table[] = {
111133
111134 static int __net_init lowpan_frags_ns_sysctl_register(struct net *net)
111135 {
111136- struct ctl_table *table;
111137+ ctl_table_no_const *table = NULL;
111138 struct ctl_table_header *hdr;
111139 struct netns_ieee802154_lowpan *ieee802154_lowpan =
111140 net_ieee802154_lowpan(net);
111141
111142- table = lowpan_frags_ns_ctl_table;
111143 if (!net_eq(net, &init_net)) {
111144- table = kmemdup(table, sizeof(lowpan_frags_ns_ctl_table),
111145+ table = kmemdup(lowpan_frags_ns_ctl_table, sizeof(lowpan_frags_ns_ctl_table),
111146 GFP_KERNEL);
111147 if (table == NULL)
111148 goto err_alloc;
111149@@ -457,9 +456,9 @@ static int __net_init lowpan_frags_ns_sysctl_register(struct net *net)
111150 /* Don't export sysctls to unprivileged users */
111151 if (net->user_ns != &init_user_ns)
111152 table[0].procname = NULL;
111153- }
111154-
111155- hdr = register_net_sysctl(net, "net/ieee802154/6lowpan", table);
111156+ hdr = register_net_sysctl(net, "net/ieee802154/6lowpan", table);
111157+ } else
111158+ hdr = register_net_sysctl(net, "net/ieee802154/6lowpan", lowpan_frags_ns_ctl_table);
111159 if (hdr == NULL)
111160 goto err_reg;
111161
111162@@ -467,8 +466,7 @@ static int __net_init lowpan_frags_ns_sysctl_register(struct net *net)
111163 return 0;
111164
111165 err_reg:
111166- if (!net_eq(net, &init_net))
111167- kfree(table);
111168+ kfree(table);
111169 err_alloc:
111170 return -ENOMEM;
111171 }
111172diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
111173index d2e49ba..f78e8aa 100644
111174--- a/net/ipv4/af_inet.c
111175+++ b/net/ipv4/af_inet.c
111176@@ -1390,7 +1390,7 @@ int inet_recv_error(struct sock *sk, struct msghdr *msg, int len, int *addr_len)
111177 return ip_recv_error(sk, msg, len, addr_len);
111178 #if IS_ENABLED(CONFIG_IPV6)
111179 if (sk->sk_family == AF_INET6)
111180- return pingv6_ops.ipv6_recv_error(sk, msg, len, addr_len);
111181+ return pingv6_ops->ipv6_recv_error(sk, msg, len, addr_len);
111182 #endif
111183 return -EINVAL;
111184 }
111185diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c
111186index 3a8985c..9d2a870 100644
111187--- a/net/ipv4/devinet.c
111188+++ b/net/ipv4/devinet.c
111189@@ -69,7 +69,8 @@
111190
111191 static struct ipv4_devconf ipv4_devconf = {
111192 .data = {
111193- [IPV4_DEVCONF_ACCEPT_REDIRECTS - 1] = 1,
111194+ [IPV4_DEVCONF_ACCEPT_REDIRECTS - 1] = 0,
111195+ [IPV4_DEVCONF_RP_FILTER - 1] = 1,
111196 [IPV4_DEVCONF_SEND_REDIRECTS - 1] = 1,
111197 [IPV4_DEVCONF_SECURE_REDIRECTS - 1] = 1,
111198 [IPV4_DEVCONF_SHARED_MEDIA - 1] = 1,
111199@@ -80,7 +81,8 @@ static struct ipv4_devconf ipv4_devconf = {
111200
111201 static struct ipv4_devconf ipv4_devconf_dflt = {
111202 .data = {
111203- [IPV4_DEVCONF_ACCEPT_REDIRECTS - 1] = 1,
111204+ [IPV4_DEVCONF_ACCEPT_REDIRECTS - 1] = 0,
111205+ [IPV4_DEVCONF_RP_FILTER - 1] = 1,
111206 [IPV4_DEVCONF_SEND_REDIRECTS - 1] = 1,
111207 [IPV4_DEVCONF_SECURE_REDIRECTS - 1] = 1,
111208 [IPV4_DEVCONF_SHARED_MEDIA - 1] = 1,
111209@@ -1549,7 +1551,7 @@ static int inet_dump_ifaddr(struct sk_buff *skb, struct netlink_callback *cb)
111210 idx = 0;
111211 head = &net->dev_index_head[h];
111212 rcu_read_lock();
111213- cb->seq = atomic_read(&net->ipv4.dev_addr_genid) ^
111214+ cb->seq = atomic_read_unchecked(&net->ipv4.dev_addr_genid) ^
111215 net->dev_base_seq;
111216 hlist_for_each_entry_rcu(dev, head, index_hlist) {
111217 if (idx < s_idx)
111218@@ -1868,7 +1870,7 @@ static int inet_netconf_dump_devconf(struct sk_buff *skb,
111219 idx = 0;
111220 head = &net->dev_index_head[h];
111221 rcu_read_lock();
111222- cb->seq = atomic_read(&net->ipv4.dev_addr_genid) ^
111223+ cb->seq = atomic_read_unchecked(&net->ipv4.dev_addr_genid) ^
111224 net->dev_base_seq;
111225 hlist_for_each_entry_rcu(dev, head, index_hlist) {
111226 if (idx < s_idx)
111227@@ -2103,7 +2105,7 @@ static int ipv4_doint_and_flush(struct ctl_table *ctl, int write,
111228 #define DEVINET_SYSCTL_FLUSHING_ENTRY(attr, name) \
111229 DEVINET_SYSCTL_COMPLEX_ENTRY(attr, name, ipv4_doint_and_flush)
111230
111231-static struct devinet_sysctl_table {
111232+static const struct devinet_sysctl_table {
111233 struct ctl_table_header *sysctl_header;
111234 struct ctl_table devinet_vars[__IPV4_DEVCONF_MAX];
111235 } devinet_sysctl = {
111236@@ -2235,7 +2237,7 @@ static __net_init int devinet_init_net(struct net *net)
111237 int err;
111238 struct ipv4_devconf *all, *dflt;
111239 #ifdef CONFIG_SYSCTL
111240- struct ctl_table *tbl = ctl_forward_entry;
111241+ ctl_table_no_const *tbl = NULL;
111242 struct ctl_table_header *forw_hdr;
111243 #endif
111244
111245@@ -2253,7 +2255,7 @@ static __net_init int devinet_init_net(struct net *net)
111246 goto err_alloc_dflt;
111247
111248 #ifdef CONFIG_SYSCTL
111249- tbl = kmemdup(tbl, sizeof(ctl_forward_entry), GFP_KERNEL);
111250+ tbl = kmemdup(ctl_forward_entry, sizeof(ctl_forward_entry), GFP_KERNEL);
111251 if (tbl == NULL)
111252 goto err_alloc_ctl;
111253
111254@@ -2273,7 +2275,10 @@ static __net_init int devinet_init_net(struct net *net)
111255 goto err_reg_dflt;
111256
111257 err = -ENOMEM;
111258- forw_hdr = register_net_sysctl(net, "net/ipv4", tbl);
111259+ if (!net_eq(net, &init_net))
111260+ forw_hdr = register_net_sysctl(net, "net/ipv4", tbl);
111261+ else
111262+ forw_hdr = register_net_sysctl(net, "net/ipv4", ctl_forward_entry);
111263 if (forw_hdr == NULL)
111264 goto err_reg_ctl;
111265 net->ipv4.forw_hdr = forw_hdr;
111266@@ -2289,8 +2294,7 @@ err_reg_ctl:
111267 err_reg_dflt:
111268 __devinet_sysctl_unregister(all);
111269 err_reg_all:
111270- if (tbl != ctl_forward_entry)
111271- kfree(tbl);
111272+ kfree(tbl);
111273 err_alloc_ctl:
111274 #endif
111275 if (dflt != &ipv4_devconf_dflt)
111276diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c
111277index 23b9b3e..60cf0c4 100644
111278--- a/net/ipv4/fib_frontend.c
111279+++ b/net/ipv4/fib_frontend.c
111280@@ -1020,12 +1020,12 @@ static int fib_inetaddr_event(struct notifier_block *this, unsigned long event,
111281 #ifdef CONFIG_IP_ROUTE_MULTIPATH
111282 fib_sync_up(dev);
111283 #endif
111284- atomic_inc(&net->ipv4.dev_addr_genid);
111285+ atomic_inc_unchecked(&net->ipv4.dev_addr_genid);
111286 rt_cache_flush(dev_net(dev));
111287 break;
111288 case NETDEV_DOWN:
111289 fib_del_ifaddr(ifa, NULL);
111290- atomic_inc(&net->ipv4.dev_addr_genid);
111291+ atomic_inc_unchecked(&net->ipv4.dev_addr_genid);
111292 if (ifa->ifa_dev->ifa_list == NULL) {
111293 /* Last address was deleted from this interface.
111294 * Disable IP.
111295@@ -1063,7 +1063,7 @@ static int fib_netdev_event(struct notifier_block *this, unsigned long event, vo
111296 #ifdef CONFIG_IP_ROUTE_MULTIPATH
111297 fib_sync_up(dev);
111298 #endif
111299- atomic_inc(&net->ipv4.dev_addr_genid);
111300+ atomic_inc_unchecked(&net->ipv4.dev_addr_genid);
111301 rt_cache_flush(net);
111302 break;
111303 case NETDEV_DOWN:
111304diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c
111305index 1e2090e..351a724 100644
111306--- a/net/ipv4/fib_semantics.c
111307+++ b/net/ipv4/fib_semantics.c
111308@@ -753,7 +753,7 @@ __be32 fib_info_update_nh_saddr(struct net *net, struct fib_nh *nh)
111309 nh->nh_saddr = inet_select_addr(nh->nh_dev,
111310 nh->nh_gw,
111311 nh->nh_parent->fib_scope);
111312- nh->nh_saddr_genid = atomic_read(&net->ipv4.dev_addr_genid);
111313+ nh->nh_saddr_genid = atomic_read_unchecked(&net->ipv4.dev_addr_genid);
111314
111315 return nh->nh_saddr;
111316 }
111317diff --git a/net/ipv4/fou.c b/net/ipv4/fou.c
111318index ff069f6..335e752 100644
111319--- a/net/ipv4/fou.c
111320+++ b/net/ipv4/fou.c
111321@@ -771,12 +771,12 @@ EXPORT_SYMBOL(gue_build_header);
111322
111323 #ifdef CONFIG_NET_FOU_IP_TUNNELS
111324
111325-static const struct ip_tunnel_encap_ops __read_mostly fou_iptun_ops = {
111326+static const struct ip_tunnel_encap_ops fou_iptun_ops = {
111327 .encap_hlen = fou_encap_hlen,
111328 .build_header = fou_build_header,
111329 };
111330
111331-static const struct ip_tunnel_encap_ops __read_mostly gue_iptun_ops = {
111332+static const struct ip_tunnel_encap_ops gue_iptun_ops = {
111333 .encap_hlen = gue_encap_hlen,
111334 .build_header = gue_build_header,
111335 };
111336diff --git a/net/ipv4/inet_hashtables.c b/net/ipv4/inet_hashtables.c
111337index 9111a4e..3576905 100644
111338--- a/net/ipv4/inet_hashtables.c
111339+++ b/net/ipv4/inet_hashtables.c
111340@@ -18,6 +18,7 @@
111341 #include <linux/sched.h>
111342 #include <linux/slab.h>
111343 #include <linux/wait.h>
111344+#include <linux/security.h>
111345
111346 #include <net/inet_connection_sock.h>
111347 #include <net/inet_hashtables.h>
111348@@ -49,6 +50,8 @@ static unsigned int inet_sk_ehashfn(const struct sock *sk)
111349 return inet_ehashfn(net, laddr, lport, faddr, fport);
111350 }
111351
111352+extern void gr_update_task_in_ip_table(const struct inet_sock *inet);
111353+
111354 /*
111355 * Allocate and initialize a new local port bind bucket.
111356 * The bindhash mutex for snum's hash chain must be held here.
111357@@ -554,6 +557,8 @@ ok:
111358 twrefcnt += inet_twsk_bind_unhash(tw, hinfo);
111359 spin_unlock(&head->lock);
111360
111361+ gr_update_task_in_ip_table(inet_sk(sk));
111362+
111363 if (tw) {
111364 inet_twsk_deschedule(tw, death_row);
111365 while (twrefcnt) {
111366diff --git a/net/ipv4/inetpeer.c b/net/ipv4/inetpeer.c
111367index 241afd7..31b95d5 100644
111368--- a/net/ipv4/inetpeer.c
111369+++ b/net/ipv4/inetpeer.c
111370@@ -461,7 +461,7 @@ relookup:
111371 if (p) {
111372 p->daddr = *daddr;
111373 atomic_set(&p->refcnt, 1);
111374- atomic_set(&p->rid, 0);
111375+ atomic_set_unchecked(&p->rid, 0);
111376 p->metrics[RTAX_LOCK-1] = INETPEER_METRICS_NEW;
111377 p->rate_tokens = 0;
111378 /* 60*HZ is arbitrary, but chosen enough high so that the first
111379diff --git a/net/ipv4/ip_fragment.c b/net/ipv4/ip_fragment.c
111380index 145a50c..5dd8cc5 100644
111381--- a/net/ipv4/ip_fragment.c
111382+++ b/net/ipv4/ip_fragment.c
111383@@ -268,7 +268,7 @@ static int ip_frag_too_far(struct ipq *qp)
111384 return 0;
111385
111386 start = qp->rid;
111387- end = atomic_inc_return(&peer->rid);
111388+ end = atomic_inc_return_unchecked(&peer->rid);
111389 qp->rid = end;
111390
111391 rc = qp->q.fragments && (end - start) > max;
111392@@ -748,12 +748,11 @@ static struct ctl_table ip4_frags_ctl_table[] = {
111393
111394 static int __net_init ip4_frags_ns_ctl_register(struct net *net)
111395 {
111396- struct ctl_table *table;
111397+ ctl_table_no_const *table = NULL;
111398 struct ctl_table_header *hdr;
111399
111400- table = ip4_frags_ns_ctl_table;
111401 if (!net_eq(net, &init_net)) {
111402- table = kmemdup(table, sizeof(ip4_frags_ns_ctl_table), GFP_KERNEL);
111403+ table = kmemdup(ip4_frags_ns_ctl_table, sizeof(ip4_frags_ns_ctl_table), GFP_KERNEL);
111404 if (table == NULL)
111405 goto err_alloc;
111406
111407@@ -767,9 +766,10 @@ static int __net_init ip4_frags_ns_ctl_register(struct net *net)
111408 /* Don't export sysctls to unprivileged users */
111409 if (net->user_ns != &init_user_ns)
111410 table[0].procname = NULL;
111411- }
111412+ hdr = register_net_sysctl(net, "net/ipv4", table);
111413+ } else
111414+ hdr = register_net_sysctl(net, "net/ipv4", ip4_frags_ns_ctl_table);
111415
111416- hdr = register_net_sysctl(net, "net/ipv4", table);
111417 if (hdr == NULL)
111418 goto err_reg;
111419
111420@@ -777,8 +777,7 @@ static int __net_init ip4_frags_ns_ctl_register(struct net *net)
111421 return 0;
111422
111423 err_reg:
111424- if (!net_eq(net, &init_net))
111425- kfree(table);
111426+ kfree(table);
111427 err_alloc:
111428 return -ENOMEM;
111429 }
111430diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
111431index 6207275f..00323a2 100644
111432--- a/net/ipv4/ip_gre.c
111433+++ b/net/ipv4/ip_gre.c
111434@@ -115,7 +115,7 @@ static bool log_ecn_error = true;
111435 module_param(log_ecn_error, bool, 0644);
111436 MODULE_PARM_DESC(log_ecn_error, "Log packets received with corrupted ECN");
111437
111438-static struct rtnl_link_ops ipgre_link_ops __read_mostly;
111439+static struct rtnl_link_ops ipgre_link_ops;
111440 static int ipgre_tunnel_init(struct net_device *dev);
111441
111442 static int ipgre_net_id __read_mostly;
111443@@ -817,7 +817,7 @@ static const struct nla_policy ipgre_policy[IFLA_GRE_MAX + 1] = {
111444 [IFLA_GRE_ENCAP_DPORT] = { .type = NLA_U16 },
111445 };
111446
111447-static struct rtnl_link_ops ipgre_link_ops __read_mostly = {
111448+static struct rtnl_link_ops ipgre_link_ops = {
111449 .kind = "gre",
111450 .maxtype = IFLA_GRE_MAX,
111451 .policy = ipgre_policy,
111452@@ -832,7 +832,7 @@ static struct rtnl_link_ops ipgre_link_ops __read_mostly = {
111453 .get_link_net = ip_tunnel_get_link_net,
111454 };
111455
111456-static struct rtnl_link_ops ipgre_tap_ops __read_mostly = {
111457+static struct rtnl_link_ops ipgre_tap_ops = {
111458 .kind = "gretap",
111459 .maxtype = IFLA_GRE_MAX,
111460 .policy = ipgre_policy,
111461diff --git a/net/ipv4/ip_input.c b/net/ipv4/ip_input.c
111462index 3d4da2c..40f9c29 100644
111463--- a/net/ipv4/ip_input.c
111464+++ b/net/ipv4/ip_input.c
111465@@ -147,6 +147,10 @@
111466 #include <linux/mroute.h>
111467 #include <linux/netlink.h>
111468
111469+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
111470+extern int grsec_enable_blackhole;
111471+#endif
111472+
111473 /*
111474 * Process Router Attention IP option (RFC 2113)
111475 */
111476@@ -223,6 +227,9 @@ static int ip_local_deliver_finish(struct sk_buff *skb)
111477 if (!raw) {
111478 if (xfrm4_policy_check(NULL, XFRM_POLICY_IN, skb)) {
111479 IP_INC_STATS_BH(net, IPSTATS_MIB_INUNKNOWNPROTOS);
111480+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
111481+ if (!grsec_enable_blackhole || (skb->dev->flags & IFF_LOOPBACK))
111482+#endif
111483 icmp_send(skb, ICMP_DEST_UNREACH,
111484 ICMP_PROT_UNREACH, 0);
111485 }
111486diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c
111487index 5cd9927..8610b9f 100644
111488--- a/net/ipv4/ip_sockglue.c
111489+++ b/net/ipv4/ip_sockglue.c
111490@@ -1254,7 +1254,8 @@ static int do_ip_getsockopt(struct sock *sk, int level, int optname,
111491 len = min_t(unsigned int, len, opt->optlen);
111492 if (put_user(len, optlen))
111493 return -EFAULT;
111494- if (copy_to_user(optval, opt->__data, len))
111495+ if ((len > (sizeof(optbuf) - sizeof(struct ip_options))) ||
111496+ copy_to_user(optval, opt->__data, len))
111497 return -EFAULT;
111498 return 0;
111499 }
111500@@ -1388,7 +1389,7 @@ static int do_ip_getsockopt(struct sock *sk, int level, int optname,
111501 if (sk->sk_type != SOCK_STREAM)
111502 return -ENOPROTOOPT;
111503
111504- msg.msg_control = (__force void *) optval;
111505+ msg.msg_control = (__force_kernel void *) optval;
111506 msg.msg_controllen = len;
111507 msg.msg_flags = flags;
111508
111509diff --git a/net/ipv4/ip_vti.c b/net/ipv4/ip_vti.c
111510index 94efe14..1453fcc 100644
111511--- a/net/ipv4/ip_vti.c
111512+++ b/net/ipv4/ip_vti.c
111513@@ -45,7 +45,7 @@
111514 #include <net/net_namespace.h>
111515 #include <net/netns/generic.h>
111516
111517-static struct rtnl_link_ops vti_link_ops __read_mostly;
111518+static struct rtnl_link_ops vti_link_ops;
111519
111520 static int vti_net_id __read_mostly;
111521 static int vti_tunnel_init(struct net_device *dev);
111522@@ -519,7 +519,7 @@ static const struct nla_policy vti_policy[IFLA_VTI_MAX + 1] = {
111523 [IFLA_VTI_REMOTE] = { .len = FIELD_SIZEOF(struct iphdr, daddr) },
111524 };
111525
111526-static struct rtnl_link_ops vti_link_ops __read_mostly = {
111527+static struct rtnl_link_ops vti_link_ops = {
111528 .kind = "vti",
111529 .maxtype = IFLA_VTI_MAX,
111530 .policy = vti_policy,
111531diff --git a/net/ipv4/ipconfig.c b/net/ipv4/ipconfig.c
111532index b26376e..fc3d733 100644
111533--- a/net/ipv4/ipconfig.c
111534+++ b/net/ipv4/ipconfig.c
111535@@ -333,7 +333,7 @@ static int __init ic_devinet_ioctl(unsigned int cmd, struct ifreq *arg)
111536
111537 mm_segment_t oldfs = get_fs();
111538 set_fs(get_ds());
111539- res = devinet_ioctl(&init_net, cmd, (struct ifreq __user *) arg);
111540+ res = devinet_ioctl(&init_net, cmd, (struct ifreq __force_user *) arg);
111541 set_fs(oldfs);
111542 return res;
111543 }
111544@@ -344,7 +344,7 @@ static int __init ic_dev_ioctl(unsigned int cmd, struct ifreq *arg)
111545
111546 mm_segment_t oldfs = get_fs();
111547 set_fs(get_ds());
111548- res = dev_ioctl(&init_net, cmd, (struct ifreq __user *) arg);
111549+ res = dev_ioctl(&init_net, cmd, (struct ifreq __force_user *) arg);
111550 set_fs(oldfs);
111551 return res;
111552 }
111553@@ -355,7 +355,7 @@ static int __init ic_route_ioctl(unsigned int cmd, struct rtentry *arg)
111554
111555 mm_segment_t oldfs = get_fs();
111556 set_fs(get_ds());
111557- res = ip_rt_ioctl(&init_net, cmd, (void __user *) arg);
111558+ res = ip_rt_ioctl(&init_net, cmd, (void __force_user *) arg);
111559 set_fs(oldfs);
111560 return res;
111561 }
111562diff --git a/net/ipv4/ipip.c b/net/ipv4/ipip.c
111563index 915d215..48d1db7 100644
111564--- a/net/ipv4/ipip.c
111565+++ b/net/ipv4/ipip.c
111566@@ -124,7 +124,7 @@ MODULE_PARM_DESC(log_ecn_error, "Log packets received with corrupted ECN");
111567 static int ipip_net_id __read_mostly;
111568
111569 static int ipip_tunnel_init(struct net_device *dev);
111570-static struct rtnl_link_ops ipip_link_ops __read_mostly;
111571+static struct rtnl_link_ops ipip_link_ops;
111572
111573 static int ipip_err(struct sk_buff *skb, u32 info)
111574 {
111575@@ -487,7 +487,7 @@ static const struct nla_policy ipip_policy[IFLA_IPTUN_MAX + 1] = {
111576 [IFLA_IPTUN_ENCAP_DPORT] = { .type = NLA_U16 },
111577 };
111578
111579-static struct rtnl_link_ops ipip_link_ops __read_mostly = {
111580+static struct rtnl_link_ops ipip_link_ops = {
111581 .kind = "ipip",
111582 .maxtype = IFLA_IPTUN_MAX,
111583 .policy = ipip_policy,
111584diff --git a/net/ipv4/netfilter/arp_tables.c b/net/ipv4/netfilter/arp_tables.c
111585index f95b6f9..2ee2097 100644
111586--- a/net/ipv4/netfilter/arp_tables.c
111587+++ b/net/ipv4/netfilter/arp_tables.c
111588@@ -885,14 +885,14 @@ static int compat_table_info(const struct xt_table_info *info,
111589 #endif
111590
111591 static int get_info(struct net *net, void __user *user,
111592- const int *len, int compat)
111593+ int len, int compat)
111594 {
111595 char name[XT_TABLE_MAXNAMELEN];
111596 struct xt_table *t;
111597 int ret;
111598
111599- if (*len != sizeof(struct arpt_getinfo)) {
111600- duprintf("length %u != %Zu\n", *len,
111601+ if (len != sizeof(struct arpt_getinfo)) {
111602+ duprintf("length %u != %Zu\n", len,
111603 sizeof(struct arpt_getinfo));
111604 return -EINVAL;
111605 }
111606@@ -929,7 +929,7 @@ static int get_info(struct net *net, void __user *user,
111607 info.size = private->size;
111608 strcpy(info.name, name);
111609
111610- if (copy_to_user(user, &info, *len) != 0)
111611+ if (copy_to_user(user, &info, len) != 0)
111612 ret = -EFAULT;
111613 else
111614 ret = 0;
111615@@ -1690,7 +1690,7 @@ static int compat_do_arpt_get_ctl(struct sock *sk, int cmd, void __user *user,
111616
111617 switch (cmd) {
111618 case ARPT_SO_GET_INFO:
111619- ret = get_info(sock_net(sk), user, len, 1);
111620+ ret = get_info(sock_net(sk), user, *len, 1);
111621 break;
111622 case ARPT_SO_GET_ENTRIES:
111623 ret = compat_get_entries(sock_net(sk), user, len);
111624@@ -1735,7 +1735,7 @@ static int do_arpt_get_ctl(struct sock *sk, int cmd, void __user *user, int *len
111625
111626 switch (cmd) {
111627 case ARPT_SO_GET_INFO:
111628- ret = get_info(sock_net(sk), user, len, 0);
111629+ ret = get_info(sock_net(sk), user, *len, 0);
111630 break;
111631
111632 case ARPT_SO_GET_ENTRIES:
111633diff --git a/net/ipv4/netfilter/ip_tables.c b/net/ipv4/netfilter/ip_tables.c
111634index cf5e82f..75a20f5 100644
111635--- a/net/ipv4/netfilter/ip_tables.c
111636+++ b/net/ipv4/netfilter/ip_tables.c
111637@@ -1073,14 +1073,14 @@ static int compat_table_info(const struct xt_table_info *info,
111638 #endif
111639
111640 static int get_info(struct net *net, void __user *user,
111641- const int *len, int compat)
111642+ int len, int compat)
111643 {
111644 char name[XT_TABLE_MAXNAMELEN];
111645 struct xt_table *t;
111646 int ret;
111647
111648- if (*len != sizeof(struct ipt_getinfo)) {
111649- duprintf("length %u != %zu\n", *len,
111650+ if (len != sizeof(struct ipt_getinfo)) {
111651+ duprintf("length %u != %zu\n", len,
111652 sizeof(struct ipt_getinfo));
111653 return -EINVAL;
111654 }
111655@@ -1117,7 +1117,7 @@ static int get_info(struct net *net, void __user *user,
111656 info.size = private->size;
111657 strcpy(info.name, name);
111658
111659- if (copy_to_user(user, &info, *len) != 0)
111660+ if (copy_to_user(user, &info, len) != 0)
111661 ret = -EFAULT;
111662 else
111663 ret = 0;
111664@@ -1973,7 +1973,7 @@ compat_do_ipt_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
111665
111666 switch (cmd) {
111667 case IPT_SO_GET_INFO:
111668- ret = get_info(sock_net(sk), user, len, 1);
111669+ ret = get_info(sock_net(sk), user, *len, 1);
111670 break;
111671 case IPT_SO_GET_ENTRIES:
111672 ret = compat_get_entries(sock_net(sk), user, len);
111673@@ -2020,7 +2020,7 @@ do_ipt_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
111674
111675 switch (cmd) {
111676 case IPT_SO_GET_INFO:
111677- ret = get_info(sock_net(sk), user, len, 0);
111678+ ret = get_info(sock_net(sk), user, *len, 0);
111679 break;
111680
111681 case IPT_SO_GET_ENTRIES:
111682diff --git a/net/ipv4/netfilter/ipt_CLUSTERIP.c b/net/ipv4/netfilter/ipt_CLUSTERIP.c
111683index e90f83a..3e6acca 100644
111684--- a/net/ipv4/netfilter/ipt_CLUSTERIP.c
111685+++ b/net/ipv4/netfilter/ipt_CLUSTERIP.c
111686@@ -720,7 +720,7 @@ static int clusterip_net_init(struct net *net)
111687 spin_lock_init(&cn->lock);
111688
111689 #ifdef CONFIG_PROC_FS
111690- cn->procdir = proc_mkdir("ipt_CLUSTERIP", net->proc_net);
111691+ cn->procdir = proc_mkdir_restrict("ipt_CLUSTERIP", net->proc_net);
111692 if (!cn->procdir) {
111693 pr_err("Unable to proc dir entry\n");
111694 return -ENOMEM;
111695diff --git a/net/ipv4/ping.c b/net/ipv4/ping.c
111696index 787b0d6..ab6c0ba 100644
111697--- a/net/ipv4/ping.c
111698+++ b/net/ipv4/ping.c
111699@@ -59,7 +59,7 @@ struct ping_table {
111700 };
111701
111702 static struct ping_table ping_table;
111703-struct pingv6_ops pingv6_ops;
111704+struct pingv6_ops *pingv6_ops;
111705 EXPORT_SYMBOL_GPL(pingv6_ops);
111706
111707 static u16 ping_port_rover;
111708@@ -359,7 +359,7 @@ static int ping_check_bind_addr(struct sock *sk, struct inet_sock *isk,
111709 return -ENODEV;
111710 }
111711 }
111712- has_addr = pingv6_ops.ipv6_chk_addr(net, &addr->sin6_addr, dev,
111713+ has_addr = pingv6_ops->ipv6_chk_addr(net, &addr->sin6_addr, dev,
111714 scoped);
111715 rcu_read_unlock();
111716
111717@@ -567,7 +567,7 @@ void ping_err(struct sk_buff *skb, int offset, u32 info)
111718 }
111719 #if IS_ENABLED(CONFIG_IPV6)
111720 } else if (skb->protocol == htons(ETH_P_IPV6)) {
111721- harderr = pingv6_ops.icmpv6_err_convert(type, code, &err);
111722+ harderr = pingv6_ops->icmpv6_err_convert(type, code, &err);
111723 #endif
111724 }
111725
111726@@ -585,7 +585,7 @@ void ping_err(struct sk_buff *skb, int offset, u32 info)
111727 info, (u8 *)icmph);
111728 #if IS_ENABLED(CONFIG_IPV6)
111729 } else if (family == AF_INET6) {
111730- pingv6_ops.ipv6_icmp_error(sk, skb, err, 0,
111731+ pingv6_ops->ipv6_icmp_error(sk, skb, err, 0,
111732 info, (u8 *)icmph);
111733 #endif
111734 }
111735@@ -919,10 +919,10 @@ int ping_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
111736 }
111737
111738 if (inet6_sk(sk)->rxopt.all)
111739- pingv6_ops.ip6_datagram_recv_common_ctl(sk, msg, skb);
111740+ pingv6_ops->ip6_datagram_recv_common_ctl(sk, msg, skb);
111741 if (skb->protocol == htons(ETH_P_IPV6) &&
111742 inet6_sk(sk)->rxopt.all)
111743- pingv6_ops.ip6_datagram_recv_specific_ctl(sk, msg, skb);
111744+ pingv6_ops->ip6_datagram_recv_specific_ctl(sk, msg, skb);
111745 else if (skb->protocol == htons(ETH_P_IP) && isk->cmsg_flags)
111746 ip_cmsg_recv(msg, skb);
111747 #endif
111748@@ -1117,7 +1117,7 @@ static void ping_v4_format_sock(struct sock *sp, struct seq_file *f,
111749 from_kuid_munged(seq_user_ns(f), sock_i_uid(sp)),
111750 0, sock_i_ino(sp),
111751 atomic_read(&sp->sk_refcnt), sp,
111752- atomic_read(&sp->sk_drops));
111753+ atomic_read_unchecked(&sp->sk_drops));
111754 }
111755
111756 static int ping_v4_seq_show(struct seq_file *seq, void *v)
111757diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c
111758index f027a70..2e64edc 100644
111759--- a/net/ipv4/raw.c
111760+++ b/net/ipv4/raw.c
111761@@ -324,7 +324,7 @@ static int raw_rcv_skb(struct sock *sk, struct sk_buff *skb)
111762 int raw_rcv(struct sock *sk, struct sk_buff *skb)
111763 {
111764 if (!xfrm4_policy_check(sk, XFRM_POLICY_IN, skb)) {
111765- atomic_inc(&sk->sk_drops);
111766+ atomic_inc_unchecked(&sk->sk_drops);
111767 kfree_skb(skb);
111768 return NET_RX_DROP;
111769 }
111770@@ -773,16 +773,20 @@ static int raw_init(struct sock *sk)
111771
111772 static int raw_seticmpfilter(struct sock *sk, char __user *optval, int optlen)
111773 {
111774+ struct icmp_filter filter;
111775+
111776 if (optlen > sizeof(struct icmp_filter))
111777 optlen = sizeof(struct icmp_filter);
111778- if (copy_from_user(&raw_sk(sk)->filter, optval, optlen))
111779+ if (copy_from_user(&filter, optval, optlen))
111780 return -EFAULT;
111781+ raw_sk(sk)->filter = filter;
111782 return 0;
111783 }
111784
111785 static int raw_geticmpfilter(struct sock *sk, char __user *optval, int __user *optlen)
111786 {
111787 int len, ret = -EFAULT;
111788+ struct icmp_filter filter;
111789
111790 if (get_user(len, optlen))
111791 goto out;
111792@@ -792,8 +796,8 @@ static int raw_geticmpfilter(struct sock *sk, char __user *optval, int __user *o
111793 if (len > sizeof(struct icmp_filter))
111794 len = sizeof(struct icmp_filter);
111795 ret = -EFAULT;
111796- if (put_user(len, optlen) ||
111797- copy_to_user(optval, &raw_sk(sk)->filter, len))
111798+ filter = raw_sk(sk)->filter;
111799+ if (put_user(len, optlen) || len > sizeof filter || copy_to_user(optval, &filter, len))
111800 goto out;
111801 ret = 0;
111802 out: return ret;
111803@@ -1022,7 +1026,7 @@ static void raw_sock_seq_show(struct seq_file *seq, struct sock *sp, int i)
111804 0, 0L, 0,
111805 from_kuid_munged(seq_user_ns(seq), sock_i_uid(sp)),
111806 0, sock_i_ino(sp),
111807- atomic_read(&sp->sk_refcnt), sp, atomic_read(&sp->sk_drops));
111808+ atomic_read(&sp->sk_refcnt), sp, atomic_read_unchecked(&sp->sk_drops));
111809 }
111810
111811 static int raw_seq_show(struct seq_file *seq, void *v)
111812diff --git a/net/ipv4/route.c b/net/ipv4/route.c
111813index e262a08..d1fc3be 100644
111814--- a/net/ipv4/route.c
111815+++ b/net/ipv4/route.c
111816@@ -228,7 +228,7 @@ static const struct seq_operations rt_cache_seq_ops = {
111817
111818 static int rt_cache_seq_open(struct inode *inode, struct file *file)
111819 {
111820- return seq_open(file, &rt_cache_seq_ops);
111821+ return seq_open_restrict(file, &rt_cache_seq_ops);
111822 }
111823
111824 static const struct file_operations rt_cache_seq_fops = {
111825@@ -319,7 +319,7 @@ static const struct seq_operations rt_cpu_seq_ops = {
111826
111827 static int rt_cpu_seq_open(struct inode *inode, struct file *file)
111828 {
111829- return seq_open(file, &rt_cpu_seq_ops);
111830+ return seq_open_restrict(file, &rt_cpu_seq_ops);
111831 }
111832
111833 static const struct file_operations rt_cpu_seq_fops = {
111834@@ -357,7 +357,7 @@ static int rt_acct_proc_show(struct seq_file *m, void *v)
111835
111836 static int rt_acct_proc_open(struct inode *inode, struct file *file)
111837 {
111838- return single_open(file, rt_acct_proc_show, NULL);
111839+ return single_open_restrict(file, rt_acct_proc_show, NULL);
111840 }
111841
111842 static const struct file_operations rt_acct_proc_fops = {
111843@@ -459,11 +459,11 @@ static struct neighbour *ipv4_neigh_lookup(const struct dst_entry *dst,
111844
111845 #define IP_IDENTS_SZ 2048u
111846 struct ip_ident_bucket {
111847- atomic_t id;
111848+ atomic_unchecked_t id;
111849 u32 stamp32;
111850 };
111851
111852-static struct ip_ident_bucket *ip_idents __read_mostly;
111853+static struct ip_ident_bucket ip_idents[IP_IDENTS_SZ] __read_mostly;
111854
111855 /* In order to protect privacy, we add a perturbation to identifiers
111856 * if one generator is seldom used. This makes hard for an attacker
111857@@ -479,7 +479,7 @@ u32 ip_idents_reserve(u32 hash, int segs)
111858 if (old != now && cmpxchg(&bucket->stamp32, old, now) == old)
111859 delta = prandom_u32_max(now - old);
111860
111861- return atomic_add_return(segs + delta, &bucket->id) - segs;
111862+ return atomic_add_return_unchecked(segs + delta, &bucket->id) - segs;
111863 }
111864 EXPORT_SYMBOL(ip_idents_reserve);
111865
111866@@ -2643,34 +2643,34 @@ static struct ctl_table ipv4_route_flush_table[] = {
111867 .maxlen = sizeof(int),
111868 .mode = 0200,
111869 .proc_handler = ipv4_sysctl_rtcache_flush,
111870+ .extra1 = &init_net,
111871 },
111872 { },
111873 };
111874
111875 static __net_init int sysctl_route_net_init(struct net *net)
111876 {
111877- struct ctl_table *tbl;
111878+ ctl_table_no_const *tbl = NULL;
111879
111880- tbl = ipv4_route_flush_table;
111881 if (!net_eq(net, &init_net)) {
111882- tbl = kmemdup(tbl, sizeof(ipv4_route_flush_table), GFP_KERNEL);
111883+ tbl = kmemdup(ipv4_route_flush_table, sizeof(ipv4_route_flush_table), GFP_KERNEL);
111884 if (tbl == NULL)
111885 goto err_dup;
111886
111887 /* Don't export sysctls to unprivileged users */
111888 if (net->user_ns != &init_user_ns)
111889 tbl[0].procname = NULL;
111890- }
111891- tbl[0].extra1 = net;
111892+ tbl[0].extra1 = net;
111893+ net->ipv4.route_hdr = register_net_sysctl(net, "net/ipv4/route", tbl);
111894+ } else
111895+ net->ipv4.route_hdr = register_net_sysctl(net, "net/ipv4/route", ipv4_route_flush_table);
111896
111897- net->ipv4.route_hdr = register_net_sysctl(net, "net/ipv4/route", tbl);
111898 if (net->ipv4.route_hdr == NULL)
111899 goto err_reg;
111900 return 0;
111901
111902 err_reg:
111903- if (tbl != ipv4_route_flush_table)
111904- kfree(tbl);
111905+ kfree(tbl);
111906 err_dup:
111907 return -ENOMEM;
111908 }
111909@@ -2693,8 +2693,8 @@ static __net_initdata struct pernet_operations sysctl_route_ops = {
111910
111911 static __net_init int rt_genid_init(struct net *net)
111912 {
111913- atomic_set(&net->ipv4.rt_genid, 0);
111914- atomic_set(&net->fnhe_genid, 0);
111915+ atomic_set_unchecked(&net->ipv4.rt_genid, 0);
111916+ atomic_set_unchecked(&net->fnhe_genid, 0);
111917 get_random_bytes(&net->ipv4.dev_addr_genid,
111918 sizeof(net->ipv4.dev_addr_genid));
111919 return 0;
111920@@ -2738,11 +2738,7 @@ int __init ip_rt_init(void)
111921 int rc = 0;
111922 int cpu;
111923
111924- ip_idents = kmalloc(IP_IDENTS_SZ * sizeof(*ip_idents), GFP_KERNEL);
111925- if (!ip_idents)
111926- panic("IP: failed to allocate ip_idents\n");
111927-
111928- prandom_bytes(ip_idents, IP_IDENTS_SZ * sizeof(*ip_idents));
111929+ prandom_bytes(ip_idents, sizeof(ip_idents));
111930
111931 for_each_possible_cpu(cpu) {
111932 struct uncached_list *ul = &per_cpu(rt_uncached_list, cpu);
111933diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c
111934index d151539..5f5e247 100644
111935--- a/net/ipv4/sysctl_net_ipv4.c
111936+++ b/net/ipv4/sysctl_net_ipv4.c
111937@@ -60,7 +60,7 @@ static int ipv4_local_port_range(struct ctl_table *table, int write,
111938 container_of(table->data, struct net, ipv4.ip_local_ports.range);
111939 int ret;
111940 int range[2];
111941- struct ctl_table tmp = {
111942+ ctl_table_no_const tmp = {
111943 .data = &range,
111944 .maxlen = sizeof(range),
111945 .mode = table->mode,
111946@@ -118,7 +118,7 @@ static int ipv4_ping_group_range(struct ctl_table *table, int write,
111947 int ret;
111948 gid_t urange[2];
111949 kgid_t low, high;
111950- struct ctl_table tmp = {
111951+ ctl_table_no_const tmp = {
111952 .data = &urange,
111953 .maxlen = sizeof(urange),
111954 .mode = table->mode,
111955@@ -149,7 +149,7 @@ static int proc_tcp_congestion_control(struct ctl_table *ctl, int write,
111956 void __user *buffer, size_t *lenp, loff_t *ppos)
111957 {
111958 char val[TCP_CA_NAME_MAX];
111959- struct ctl_table tbl = {
111960+ ctl_table_no_const tbl = {
111961 .data = val,
111962 .maxlen = TCP_CA_NAME_MAX,
111963 };
111964@@ -168,7 +168,7 @@ static int proc_tcp_available_congestion_control(struct ctl_table *ctl,
111965 void __user *buffer, size_t *lenp,
111966 loff_t *ppos)
111967 {
111968- struct ctl_table tbl = { .maxlen = TCP_CA_BUF_MAX, };
111969+ ctl_table_no_const tbl = { .maxlen = TCP_CA_BUF_MAX, };
111970 int ret;
111971
111972 tbl.data = kmalloc(tbl.maxlen, GFP_USER);
111973@@ -185,7 +185,7 @@ static int proc_allowed_congestion_control(struct ctl_table *ctl,
111974 void __user *buffer, size_t *lenp,
111975 loff_t *ppos)
111976 {
111977- struct ctl_table tbl = { .maxlen = TCP_CA_BUF_MAX };
111978+ ctl_table_no_const tbl = { .maxlen = TCP_CA_BUF_MAX };
111979 int ret;
111980
111981 tbl.data = kmalloc(tbl.maxlen, GFP_USER);
111982@@ -204,7 +204,7 @@ static int proc_tcp_fastopen_key(struct ctl_table *ctl, int write,
111983 void __user *buffer, size_t *lenp,
111984 loff_t *ppos)
111985 {
111986- struct ctl_table tbl = { .maxlen = (TCP_FASTOPEN_KEY_LENGTH * 2 + 10) };
111987+ ctl_table_no_const tbl = { .maxlen = (TCP_FASTOPEN_KEY_LENGTH * 2 + 10) };
111988 struct tcp_fastopen_context *ctxt;
111989 int ret;
111990 u32 user_key[4]; /* 16 bytes, matching TCP_FASTOPEN_KEY_LENGTH */
111991@@ -888,13 +888,12 @@ static struct ctl_table ipv4_net_table[] = {
111992
111993 static __net_init int ipv4_sysctl_init_net(struct net *net)
111994 {
111995- struct ctl_table *table;
111996+ ctl_table_no_const *table = NULL;
111997
111998- table = ipv4_net_table;
111999 if (!net_eq(net, &init_net)) {
112000 int i;
112001
112002- table = kmemdup(table, sizeof(ipv4_net_table), GFP_KERNEL);
112003+ table = kmemdup(ipv4_net_table, sizeof(ipv4_net_table), GFP_KERNEL);
112004 if (table == NULL)
112005 goto err_alloc;
112006
112007@@ -903,7 +902,10 @@ static __net_init int ipv4_sysctl_init_net(struct net *net)
112008 table[i].data += (void *)net - (void *)&init_net;
112009 }
112010
112011- net->ipv4.ipv4_hdr = register_net_sysctl(net, "net/ipv4", table);
112012+ if (!net_eq(net, &init_net))
112013+ net->ipv4.ipv4_hdr = register_net_sysctl(net, "net/ipv4", table);
112014+ else
112015+ net->ipv4.ipv4_hdr = register_net_sysctl(net, "net/ipv4", ipv4_net_table);
112016 if (net->ipv4.ipv4_hdr == NULL)
112017 goto err_reg;
112018
112019diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
112020index 995a225..e1e9183 100644
112021--- a/net/ipv4/tcp.c
112022+++ b/net/ipv4/tcp.c
112023@@ -520,8 +520,10 @@ unsigned int tcp_poll(struct file *file, struct socket *sock, poll_table *wait)
112024
112025 /* Race breaker. If space is freed after
112026 * wspace test but before the flags are set,
112027- * IO signal will be lost.
112028+ * IO signal will be lost. Memory barrier
112029+ * pairs with the input side.
112030 */
112031+ smp_mb__after_atomic();
112032 if (sk_stream_is_writeable(sk))
112033 mask |= POLLOUT | POLLWRNORM;
112034 }
112035diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
112036index f501ac04..0c5a1b2 100644
112037--- a/net/ipv4/tcp_input.c
112038+++ b/net/ipv4/tcp_input.c
112039@@ -767,7 +767,7 @@ static void tcp_update_pacing_rate(struct sock *sk)
112040 * without any lock. We want to make sure compiler wont store
112041 * intermediate values in this location.
112042 */
112043- ACCESS_ONCE(sk->sk_pacing_rate) = min_t(u64, rate,
112044+ ACCESS_ONCE_RW(sk->sk_pacing_rate) = min_t(u64, rate,
112045 sk->sk_max_pacing_rate);
112046 }
112047
112048@@ -4541,7 +4541,7 @@ static struct sk_buff *tcp_collapse_one(struct sock *sk, struct sk_buff *skb,
112049 * simplifies code)
112050 */
112051 static void
112052-tcp_collapse(struct sock *sk, struct sk_buff_head *list,
112053+__intentional_overflow(5,6) tcp_collapse(struct sock *sk, struct sk_buff_head *list,
112054 struct sk_buff *head, struct sk_buff *tail,
112055 u32 start, u32 end)
112056 {
112057@@ -4799,6 +4799,8 @@ static void tcp_check_space(struct sock *sk)
112058 {
112059 if (sock_flag(sk, SOCK_QUEUE_SHRUNK)) {
112060 sock_reset_flag(sk, SOCK_QUEUE_SHRUNK);
112061+ /* pairs with tcp_poll() */
112062+ smp_mb__after_atomic();
112063 if (sk->sk_socket &&
112064 test_bit(SOCK_NOSPACE, &sk->sk_socket->flags))
112065 tcp_new_space(sk);
112066@@ -5525,6 +5527,7 @@ discard:
112067 tcp_paws_reject(&tp->rx_opt, 0))
112068 goto discard_and_undo;
112069
112070+#ifndef CONFIG_GRKERNSEC_NO_SIMULT_CONNECT
112071 if (th->syn) {
112072 /* We see SYN without ACK. It is attempt of
112073 * simultaneous connect with crossed SYNs.
112074@@ -5575,6 +5578,7 @@ discard:
112075 goto discard;
112076 #endif
112077 }
112078+#endif
112079 /* "fifth, if neither of the SYN or RST bits is set then
112080 * drop the segment and return."
112081 */
112082@@ -5621,7 +5625,7 @@ int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb,
112083 goto discard;
112084
112085 if (th->syn) {
112086- if (th->fin)
112087+ if (th->fin || th->urg || th->psh)
112088 goto discard;
112089 if (icsk->icsk_af_ops->conn_request(sk, skb) < 0)
112090 return 1;
112091diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
112092index f1756ee..8908cb0 100644
112093--- a/net/ipv4/tcp_ipv4.c
112094+++ b/net/ipv4/tcp_ipv4.c
112095@@ -89,6 +89,10 @@ int sysctl_tcp_tw_reuse __read_mostly;
112096 int sysctl_tcp_low_latency __read_mostly;
112097 EXPORT_SYMBOL(sysctl_tcp_low_latency);
112098
112099+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
112100+extern int grsec_enable_blackhole;
112101+#endif
112102+
112103 #ifdef CONFIG_TCP_MD5SIG
112104 static int tcp_v4_md5_hash_hdr(char *md5_hash, const struct tcp_md5sig_key *key,
112105 __be32 daddr, __be32 saddr, const struct tcphdr *th);
112106@@ -1475,6 +1479,9 @@ int tcp_v4_do_rcv(struct sock *sk, struct sk_buff *skb)
112107 return 0;
112108
112109 reset:
112110+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
112111+ if (!grsec_enable_blackhole)
112112+#endif
112113 tcp_v4_send_reset(rsk, skb);
112114 discard:
112115 kfree_skb(skb);
112116@@ -1639,12 +1646,19 @@ int tcp_v4_rcv(struct sk_buff *skb)
112117 TCP_SKB_CB(skb)->sacked = 0;
112118
112119 sk = __inet_lookup_skb(&tcp_hashinfo, skb, th->source, th->dest);
112120- if (!sk)
112121+ if (!sk) {
112122+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
112123+ ret = 1;
112124+#endif
112125 goto no_tcp_socket;
112126-
112127+ }
112128 process:
112129- if (sk->sk_state == TCP_TIME_WAIT)
112130+ if (sk->sk_state == TCP_TIME_WAIT) {
112131+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
112132+ ret = 2;
112133+#endif
112134 goto do_time_wait;
112135+ }
112136
112137 if (unlikely(iph->ttl < inet_sk(sk)->min_ttl)) {
112138 NET_INC_STATS_BH(net, LINUX_MIB_TCPMINTTLDROP);
112139@@ -1700,6 +1714,10 @@ csum_error:
112140 bad_packet:
112141 TCP_INC_STATS_BH(net, TCP_MIB_INERRS);
112142 } else {
112143+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
112144+ if (!grsec_enable_blackhole || (ret == 1 &&
112145+ (skb->dev->flags & IFF_LOOPBACK)))
112146+#endif
112147 tcp_v4_send_reset(NULL, skb);
112148 }
112149
112150diff --git a/net/ipv4/tcp_minisocks.c b/net/ipv4/tcp_minisocks.c
112151index 50277af..defe393 100644
112152--- a/net/ipv4/tcp_minisocks.c
112153+++ b/net/ipv4/tcp_minisocks.c
112154@@ -27,6 +27,10 @@
112155 #include <net/inet_common.h>
112156 #include <net/xfrm.h>
112157
112158+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
112159+extern int grsec_enable_blackhole;
112160+#endif
112161+
112162 int sysctl_tcp_syncookies __read_mostly = 1;
112163 EXPORT_SYMBOL(sysctl_tcp_syncookies);
112164
112165@@ -788,7 +792,10 @@ embryonic_reset:
112166 * avoid becoming vulnerable to outside attack aiming at
112167 * resetting legit local connections.
112168 */
112169- req->rsk_ops->send_reset(sk, skb);
112170+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
112171+ if (!grsec_enable_blackhole)
112172+#endif
112173+ req->rsk_ops->send_reset(sk, skb);
112174 } else if (fastopen) { /* received a valid RST pkt */
112175 reqsk_fastopen_remove(sk, req, true);
112176 tcp_reset(sk);
112177diff --git a/net/ipv4/tcp_probe.c b/net/ipv4/tcp_probe.c
112178index ebf5ff5..4d1ff32 100644
112179--- a/net/ipv4/tcp_probe.c
112180+++ b/net/ipv4/tcp_probe.c
112181@@ -236,7 +236,7 @@ static ssize_t tcpprobe_read(struct file *file, char __user *buf,
112182 if (cnt + width >= len)
112183 break;
112184
112185- if (copy_to_user(buf + cnt, tbuf, width))
112186+ if (width > sizeof tbuf || copy_to_user(buf + cnt, tbuf, width))
112187 return -EFAULT;
112188 cnt += width;
112189 }
112190diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c
112191index 0732b78..a82bdc6 100644
112192--- a/net/ipv4/tcp_timer.c
112193+++ b/net/ipv4/tcp_timer.c
112194@@ -22,6 +22,10 @@
112195 #include <linux/gfp.h>
112196 #include <net/tcp.h>
112197
112198+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
112199+extern int grsec_lastack_retries;
112200+#endif
112201+
112202 int sysctl_tcp_syn_retries __read_mostly = TCP_SYN_RETRIES;
112203 int sysctl_tcp_synack_retries __read_mostly = TCP_SYNACK_RETRIES;
112204 int sysctl_tcp_keepalive_time __read_mostly = TCP_KEEPALIVE_TIME;
112205@@ -194,6 +198,13 @@ static int tcp_write_timeout(struct sock *sk)
112206 }
112207 }
112208
112209+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
112210+ if ((sk->sk_state == TCP_LAST_ACK) &&
112211+ (grsec_lastack_retries > 0) &&
112212+ (grsec_lastack_retries < retry_until))
112213+ retry_until = grsec_lastack_retries;
112214+#endif
112215+
112216 if (retransmits_timed_out(sk, retry_until,
112217 syn_set ? 0 : icsk->icsk_user_timeout, syn_set)) {
112218 /* Has it gone just too far? */
112219diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
112220index 51f1745..4bc0427 100644
112221--- a/net/ipv4/udp.c
112222+++ b/net/ipv4/udp.c
112223@@ -87,6 +87,7 @@
112224 #include <linux/types.h>
112225 #include <linux/fcntl.h>
112226 #include <linux/module.h>
112227+#include <linux/security.h>
112228 #include <linux/socket.h>
112229 #include <linux/sockios.h>
112230 #include <linux/igmp.h>
112231@@ -115,6 +116,10 @@
112232 #include <net/busy_poll.h>
112233 #include "udp_impl.h"
112234
112235+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
112236+extern int grsec_enable_blackhole;
112237+#endif
112238+
112239 struct udp_table udp_table __read_mostly;
112240 EXPORT_SYMBOL(udp_table);
112241
112242@@ -609,6 +614,9 @@ static inline bool __udp_is_mcast_sock(struct net *net, struct sock *sk,
112243 return true;
112244 }
112245
112246+extern int gr_search_udp_recvmsg(struct sock *sk, const struct sk_buff *skb);
112247+extern int gr_search_udp_sendmsg(struct sock *sk, struct sockaddr_in *addr);
112248+
112249 /*
112250 * This routine is called by the ICMP module when it gets some
112251 * sort of error condition. If err < 0 then the socket should
112252@@ -946,9 +954,18 @@ int udp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
112253 dport = usin->sin_port;
112254 if (dport == 0)
112255 return -EINVAL;
112256+
112257+ err = gr_search_udp_sendmsg(sk, usin);
112258+ if (err)
112259+ return err;
112260 } else {
112261 if (sk->sk_state != TCP_ESTABLISHED)
112262 return -EDESTADDRREQ;
112263+
112264+ err = gr_search_udp_sendmsg(sk, NULL);
112265+ if (err)
112266+ return err;
112267+
112268 daddr = inet->inet_daddr;
112269 dport = inet->inet_dport;
112270 /* Open fast path for connected socket.
112271@@ -1196,7 +1213,7 @@ static unsigned int first_packet_length(struct sock *sk)
112272 IS_UDPLITE(sk));
112273 UDP_INC_STATS_BH(sock_net(sk), UDP_MIB_INERRORS,
112274 IS_UDPLITE(sk));
112275- atomic_inc(&sk->sk_drops);
112276+ atomic_inc_unchecked(&sk->sk_drops);
112277 __skb_unlink(skb, rcvq);
112278 __skb_queue_tail(&list_kill, skb);
112279 }
112280@@ -1276,6 +1293,10 @@ try_again:
112281 if (!skb)
112282 goto out;
112283
112284+ err = gr_search_udp_recvmsg(sk, skb);
112285+ if (err)
112286+ goto out_free;
112287+
112288 ulen = skb->len - sizeof(struct udphdr);
112289 copied = len;
112290 if (copied > ulen)
112291@@ -1308,7 +1329,7 @@ try_again:
112292 if (unlikely(err)) {
112293 trace_kfree_skb(skb, udp_recvmsg);
112294 if (!peeked) {
112295- atomic_inc(&sk->sk_drops);
112296+ atomic_inc_unchecked(&sk->sk_drops);
112297 UDP_INC_STATS_USER(sock_net(sk),
112298 UDP_MIB_INERRORS, is_udplite);
112299 }
112300@@ -1604,7 +1625,7 @@ csum_error:
112301 UDP_INC_STATS_BH(sock_net(sk), UDP_MIB_CSUMERRORS, is_udplite);
112302 drop:
112303 UDP_INC_STATS_BH(sock_net(sk), UDP_MIB_INERRORS, is_udplite);
112304- atomic_inc(&sk->sk_drops);
112305+ atomic_inc_unchecked(&sk->sk_drops);
112306 kfree_skb(skb);
112307 return -1;
112308 }
112309@@ -1623,7 +1644,7 @@ static void flush_stack(struct sock **stack, unsigned int count,
112310 skb1 = (i == final) ? skb : skb_clone(skb, GFP_ATOMIC);
112311
112312 if (!skb1) {
112313- atomic_inc(&sk->sk_drops);
112314+ atomic_inc_unchecked(&sk->sk_drops);
112315 UDP_INC_STATS_BH(sock_net(sk), UDP_MIB_RCVBUFERRORS,
112316 IS_UDPLITE(sk));
112317 UDP_INC_STATS_BH(sock_net(sk), UDP_MIB_INERRORS,
112318@@ -1829,6 +1850,9 @@ int __udp4_lib_rcv(struct sk_buff *skb, struct udp_table *udptable,
112319 goto csum_error;
112320
112321 UDP_INC_STATS_BH(net, UDP_MIB_NOPORTS, proto == IPPROTO_UDPLITE);
112322+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
112323+ if (!grsec_enable_blackhole || (skb->dev->flags & IFF_LOOPBACK))
112324+#endif
112325 icmp_send(skb, ICMP_DEST_UNREACH, ICMP_PORT_UNREACH, 0);
112326
112327 /*
112328@@ -2426,7 +2450,7 @@ static void udp4_format_sock(struct sock *sp, struct seq_file *f,
112329 from_kuid_munged(seq_user_ns(f), sock_i_uid(sp)),
112330 0, sock_i_ino(sp),
112331 atomic_read(&sp->sk_refcnt), sp,
112332- atomic_read(&sp->sk_drops));
112333+ atomic_read_unchecked(&sp->sk_drops));
112334 }
112335
112336 int udp4_seq_show(struct seq_file *seq, void *v)
112337diff --git a/net/ipv4/xfrm4_policy.c b/net/ipv4/xfrm4_policy.c
112338index 6156f68..d6ab46d 100644
112339--- a/net/ipv4/xfrm4_policy.c
112340+++ b/net/ipv4/xfrm4_policy.c
112341@@ -186,11 +186,11 @@ _decode_session4(struct sk_buff *skb, struct flowi *fl, int reverse)
112342 fl4->flowi4_tos = iph->tos;
112343 }
112344
112345-static inline int xfrm4_garbage_collect(struct dst_ops *ops)
112346+static int xfrm4_garbage_collect(struct dst_ops *ops)
112347 {
112348 struct net *net = container_of(ops, struct net, xfrm.xfrm4_dst_ops);
112349
112350- xfrm4_policy_afinfo.garbage_collect(net);
112351+ xfrm_garbage_collect_deferred(net);
112352 return (dst_entries_get_slow(ops) > ops->gc_thresh * 2);
112353 }
112354
112355@@ -269,19 +269,18 @@ static struct ctl_table xfrm4_policy_table[] = {
112356
112357 static int __net_init xfrm4_net_init(struct net *net)
112358 {
112359- struct ctl_table *table;
112360+ ctl_table_no_const *table = NULL;
112361 struct ctl_table_header *hdr;
112362
112363- table = xfrm4_policy_table;
112364 if (!net_eq(net, &init_net)) {
112365- table = kmemdup(table, sizeof(xfrm4_policy_table), GFP_KERNEL);
112366+ table = kmemdup(xfrm4_policy_table, sizeof(xfrm4_policy_table), GFP_KERNEL);
112367 if (!table)
112368 goto err_alloc;
112369
112370 table[0].data = &net->xfrm.xfrm4_dst_ops.gc_thresh;
112371- }
112372-
112373- hdr = register_net_sysctl(net, "net/ipv4", table);
112374+ hdr = register_net_sysctl(net, "net/ipv4", table);
112375+ } else
112376+ hdr = register_net_sysctl(net, "net/ipv4", xfrm4_policy_table);
112377 if (!hdr)
112378 goto err_reg;
112379
112380@@ -289,8 +288,7 @@ static int __net_init xfrm4_net_init(struct net *net)
112381 return 0;
112382
112383 err_reg:
112384- if (!net_eq(net, &init_net))
112385- kfree(table);
112386+ kfree(table);
112387 err_alloc:
112388 return -ENOMEM;
112389 }
112390diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
112391index b603002..0de5c88 100644
112392--- a/net/ipv6/addrconf.c
112393+++ b/net/ipv6/addrconf.c
112394@@ -171,7 +171,7 @@ static struct ipv6_devconf ipv6_devconf __read_mostly = {
112395 .hop_limit = IPV6_DEFAULT_HOPLIMIT,
112396 .mtu6 = IPV6_MIN_MTU,
112397 .accept_ra = 1,
112398- .accept_redirects = 1,
112399+ .accept_redirects = 0,
112400 .autoconf = 1,
112401 .force_mld_version = 0,
112402 .mldv1_unsolicited_report_interval = 10 * HZ,
112403@@ -209,7 +209,7 @@ static struct ipv6_devconf ipv6_devconf_dflt __read_mostly = {
112404 .hop_limit = IPV6_DEFAULT_HOPLIMIT,
112405 .mtu6 = IPV6_MIN_MTU,
112406 .accept_ra = 1,
112407- .accept_redirects = 1,
112408+ .accept_redirects = 0,
112409 .autoconf = 1,
112410 .force_mld_version = 0,
112411 .mldv1_unsolicited_report_interval = 10 * HZ,
112412@@ -607,7 +607,7 @@ static int inet6_netconf_dump_devconf(struct sk_buff *skb,
112413 idx = 0;
112414 head = &net->dev_index_head[h];
112415 rcu_read_lock();
112416- cb->seq = atomic_read(&net->ipv6.dev_addr_genid) ^
112417+ cb->seq = atomic_read_unchecked(&net->ipv6.dev_addr_genid) ^
112418 net->dev_base_seq;
112419 hlist_for_each_entry_rcu(dev, head, index_hlist) {
112420 if (idx < s_idx)
112421@@ -2438,7 +2438,7 @@ int addrconf_set_dstaddr(struct net *net, void __user *arg)
112422 p.iph.ihl = 5;
112423 p.iph.protocol = IPPROTO_IPV6;
112424 p.iph.ttl = 64;
112425- ifr.ifr_ifru.ifru_data = (__force void __user *)&p;
112426+ ifr.ifr_ifru.ifru_data = (void __force_user *)&p;
112427
112428 if (ops->ndo_do_ioctl) {
112429 mm_segment_t oldfs = get_fs();
112430@@ -3587,16 +3587,23 @@ static const struct file_operations if6_fops = {
112431 .release = seq_release_net,
112432 };
112433
112434+extern void register_ipv6_seq_ops_addr(struct seq_operations *addr);
112435+extern void unregister_ipv6_seq_ops_addr(void);
112436+
112437 static int __net_init if6_proc_net_init(struct net *net)
112438 {
112439- if (!proc_create("if_inet6", S_IRUGO, net->proc_net, &if6_fops))
112440+ register_ipv6_seq_ops_addr(&if6_seq_ops);
112441+ if (!proc_create("if_inet6", S_IRUGO, net->proc_net, &if6_fops)) {
112442+ unregister_ipv6_seq_ops_addr();
112443 return -ENOMEM;
112444+ }
112445 return 0;
112446 }
112447
112448 static void __net_exit if6_proc_net_exit(struct net *net)
112449 {
112450 remove_proc_entry("if_inet6", net->proc_net);
112451+ unregister_ipv6_seq_ops_addr();
112452 }
112453
112454 static struct pernet_operations if6_proc_net_ops = {
112455@@ -4215,7 +4222,7 @@ static int inet6_dump_addr(struct sk_buff *skb, struct netlink_callback *cb,
112456 s_ip_idx = ip_idx = cb->args[2];
112457
112458 rcu_read_lock();
112459- cb->seq = atomic_read(&net->ipv6.dev_addr_genid) ^ net->dev_base_seq;
112460+ cb->seq = atomic_read_unchecked(&net->ipv6.dev_addr_genid) ^ net->dev_base_seq;
112461 for (h = s_h; h < NETDEV_HASHENTRIES; h++, s_idx = 0) {
112462 idx = 0;
112463 head = &net->dev_index_head[h];
112464@@ -4864,7 +4871,7 @@ static void __ipv6_ifa_notify(int event, struct inet6_ifaddr *ifp)
112465 rt_genid_bump_ipv6(net);
112466 break;
112467 }
112468- atomic_inc(&net->ipv6.dev_addr_genid);
112469+ atomic_inc_unchecked(&net->ipv6.dev_addr_genid);
112470 }
112471
112472 static void ipv6_ifa_notify(int event, struct inet6_ifaddr *ifp)
112473@@ -4884,7 +4891,7 @@ int addrconf_sysctl_forward(struct ctl_table *ctl, int write,
112474 int *valp = ctl->data;
112475 int val = *valp;
112476 loff_t pos = *ppos;
112477- struct ctl_table lctl;
112478+ ctl_table_no_const lctl;
112479 int ret;
112480
112481 /*
112482@@ -4909,7 +4916,7 @@ int addrconf_sysctl_mtu(struct ctl_table *ctl, int write,
112483 {
112484 struct inet6_dev *idev = ctl->extra1;
112485 int min_mtu = IPV6_MIN_MTU;
112486- struct ctl_table lctl;
112487+ ctl_table_no_const lctl;
112488
112489 lctl = *ctl;
112490 lctl.extra1 = &min_mtu;
112491@@ -4984,7 +4991,7 @@ int addrconf_sysctl_disable(struct ctl_table *ctl, int write,
112492 int *valp = ctl->data;
112493 int val = *valp;
112494 loff_t pos = *ppos;
112495- struct ctl_table lctl;
112496+ ctl_table_no_const lctl;
112497 int ret;
112498
112499 /*
112500diff --git a/net/ipv6/addrconf_core.c b/net/ipv6/addrconf_core.c
112501index 98cc4cd..0768c4e 100644
112502--- a/net/ipv6/addrconf_core.c
112503+++ b/net/ipv6/addrconf_core.c
112504@@ -133,6 +133,14 @@ static void snmp6_free_dev(struct inet6_dev *idev)
112505 free_percpu(idev->stats.ipv6);
112506 }
112507
112508+static void in6_dev_finish_destroy_rcu(struct rcu_head *head)
112509+{
112510+ struct inet6_dev *idev = container_of(head, struct inet6_dev, rcu);
112511+
112512+ snmp6_free_dev(idev);
112513+ kfree(idev);
112514+}
112515+
112516 /* Nobody refers to this device, we may destroy it. */
112517
112518 void in6_dev_finish_destroy(struct inet6_dev *idev)
112519@@ -151,7 +159,6 @@ void in6_dev_finish_destroy(struct inet6_dev *idev)
112520 pr_warn("Freeing alive inet6 device %p\n", idev);
112521 return;
112522 }
112523- snmp6_free_dev(idev);
112524- kfree_rcu(idev, rcu);
112525+ call_rcu(&idev->rcu, in6_dev_finish_destroy_rcu);
112526 }
112527 EXPORT_SYMBOL(in6_dev_finish_destroy);
112528diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
112529index e8c4400..a4cd5da 100644
112530--- a/net/ipv6/af_inet6.c
112531+++ b/net/ipv6/af_inet6.c
112532@@ -766,7 +766,7 @@ static int __net_init inet6_net_init(struct net *net)
112533 net->ipv6.sysctl.icmpv6_time = 1*HZ;
112534 net->ipv6.sysctl.flowlabel_consistency = 1;
112535 net->ipv6.sysctl.auto_flowlabels = 0;
112536- atomic_set(&net->ipv6.fib6_sernum, 1);
112537+ atomic_set_unchecked(&net->ipv6.fib6_sernum, 1);
112538
112539 err = ipv6_init_mibs(net);
112540 if (err)
112541diff --git a/net/ipv6/datagram.c b/net/ipv6/datagram.c
112542index ace8dac..bd6942d 100644
112543--- a/net/ipv6/datagram.c
112544+++ b/net/ipv6/datagram.c
112545@@ -957,5 +957,5 @@ void ip6_dgram_sock_seq_show(struct seq_file *seq, struct sock *sp,
112546 0,
112547 sock_i_ino(sp),
112548 atomic_read(&sp->sk_refcnt), sp,
112549- atomic_read(&sp->sk_drops));
112550+ atomic_read_unchecked(&sp->sk_drops));
112551 }
112552diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c
112553index a5e9519..16b7412 100644
112554--- a/net/ipv6/icmp.c
112555+++ b/net/ipv6/icmp.c
112556@@ -1005,7 +1005,7 @@ static struct ctl_table ipv6_icmp_table_template[] = {
112557
112558 struct ctl_table * __net_init ipv6_icmp_sysctl_init(struct net *net)
112559 {
112560- struct ctl_table *table;
112561+ ctl_table_no_const *table;
112562
112563 table = kmemdup(ipv6_icmp_table_template,
112564 sizeof(ipv6_icmp_table_template),
112565diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c
112566index 263ef41..88c7be8 100644
112567--- a/net/ipv6/ip6_fib.c
112568+++ b/net/ipv6/ip6_fib.c
112569@@ -99,9 +99,9 @@ static int fib6_new_sernum(struct net *net)
112570 int new, old;
112571
112572 do {
112573- old = atomic_read(&net->ipv6.fib6_sernum);
112574+ old = atomic_read_unchecked(&net->ipv6.fib6_sernum);
112575 new = old < INT_MAX ? old + 1 : 1;
112576- } while (atomic_cmpxchg(&net->ipv6.fib6_sernum,
112577+ } while (atomic_cmpxchg_unchecked(&net->ipv6.fib6_sernum,
112578 old, new) != old);
112579 return new;
112580 }
112581diff --git a/net/ipv6/ip6_gre.c b/net/ipv6/ip6_gre.c
112582index bc28b7d..a08feea 100644
112583--- a/net/ipv6/ip6_gre.c
112584+++ b/net/ipv6/ip6_gre.c
112585@@ -71,8 +71,8 @@ struct ip6gre_net {
112586 struct net_device *fb_tunnel_dev;
112587 };
112588
112589-static struct rtnl_link_ops ip6gre_link_ops __read_mostly;
112590-static struct rtnl_link_ops ip6gre_tap_ops __read_mostly;
112591+static struct rtnl_link_ops ip6gre_link_ops;
112592+static struct rtnl_link_ops ip6gre_tap_ops;
112593 static int ip6gre_tunnel_init(struct net_device *dev);
112594 static void ip6gre_tunnel_setup(struct net_device *dev);
112595 static void ip6gre_tunnel_link(struct ip6gre_net *ign, struct ip6_tnl *t);
112596@@ -1289,7 +1289,7 @@ static void ip6gre_fb_tunnel_init(struct net_device *dev)
112597 }
112598
112599
112600-static struct inet6_protocol ip6gre_protocol __read_mostly = {
112601+static struct inet6_protocol ip6gre_protocol = {
112602 .handler = ip6gre_rcv,
112603 .err_handler = ip6gre_err,
112604 .flags = INET6_PROTO_NOPOLICY|INET6_PROTO_FINAL,
112605@@ -1650,7 +1650,7 @@ static const struct nla_policy ip6gre_policy[IFLA_GRE_MAX + 1] = {
112606 [IFLA_GRE_FLAGS] = { .type = NLA_U32 },
112607 };
112608
112609-static struct rtnl_link_ops ip6gre_link_ops __read_mostly = {
112610+static struct rtnl_link_ops ip6gre_link_ops = {
112611 .kind = "ip6gre",
112612 .maxtype = IFLA_GRE_MAX,
112613 .policy = ip6gre_policy,
112614@@ -1665,7 +1665,7 @@ static struct rtnl_link_ops ip6gre_link_ops __read_mostly = {
112615 .get_link_net = ip6_tnl_get_link_net,
112616 };
112617
112618-static struct rtnl_link_ops ip6gre_tap_ops __read_mostly = {
112619+static struct rtnl_link_ops ip6gre_tap_ops = {
112620 .kind = "ip6gretap",
112621 .maxtype = IFLA_GRE_MAX,
112622 .policy = ip6gre_policy,
112623diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
112624index ddd94ec..b7cfefb 100644
112625--- a/net/ipv6/ip6_tunnel.c
112626+++ b/net/ipv6/ip6_tunnel.c
112627@@ -86,7 +86,7 @@ static u32 HASH(const struct in6_addr *addr1, const struct in6_addr *addr2)
112628
112629 static int ip6_tnl_dev_init(struct net_device *dev);
112630 static void ip6_tnl_dev_setup(struct net_device *dev);
112631-static struct rtnl_link_ops ip6_link_ops __read_mostly;
112632+static struct rtnl_link_ops ip6_link_ops;
112633
112634 static int ip6_tnl_net_id __read_mostly;
112635 struct ip6_tnl_net {
112636@@ -1780,7 +1780,7 @@ static const struct nla_policy ip6_tnl_policy[IFLA_IPTUN_MAX + 1] = {
112637 [IFLA_IPTUN_PROTO] = { .type = NLA_U8 },
112638 };
112639
112640-static struct rtnl_link_ops ip6_link_ops __read_mostly = {
112641+static struct rtnl_link_ops ip6_link_ops = {
112642 .kind = "ip6tnl",
112643 .maxtype = IFLA_IPTUN_MAX,
112644 .policy = ip6_tnl_policy,
112645diff --git a/net/ipv6/ip6_vti.c b/net/ipv6/ip6_vti.c
112646index 5fb9e21..92bf04b 100644
112647--- a/net/ipv6/ip6_vti.c
112648+++ b/net/ipv6/ip6_vti.c
112649@@ -62,7 +62,7 @@ static u32 HASH(const struct in6_addr *addr1, const struct in6_addr *addr2)
112650
112651 static int vti6_dev_init(struct net_device *dev);
112652 static void vti6_dev_setup(struct net_device *dev);
112653-static struct rtnl_link_ops vti6_link_ops __read_mostly;
112654+static struct rtnl_link_ops vti6_link_ops;
112655
112656 static int vti6_net_id __read_mostly;
112657 struct vti6_net {
112658@@ -1004,7 +1004,7 @@ static const struct nla_policy vti6_policy[IFLA_VTI_MAX + 1] = {
112659 [IFLA_VTI_OKEY] = { .type = NLA_U32 },
112660 };
112661
112662-static struct rtnl_link_ops vti6_link_ops __read_mostly = {
112663+static struct rtnl_link_ops vti6_link_ops = {
112664 .kind = "vti6",
112665 .maxtype = IFLA_VTI_MAX,
112666 .policy = vti6_policy,
112667diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c
112668index 8d766d9..dcdfea7 100644
112669--- a/net/ipv6/ipv6_sockglue.c
112670+++ b/net/ipv6/ipv6_sockglue.c
112671@@ -989,7 +989,7 @@ static int do_ipv6_getsockopt(struct sock *sk, int level, int optname,
112672 if (sk->sk_type != SOCK_STREAM)
112673 return -ENOPROTOOPT;
112674
112675- msg.msg_control = optval;
112676+ msg.msg_control = (void __force_kernel *)optval;
112677 msg.msg_controllen = len;
112678 msg.msg_flags = flags;
112679
112680diff --git a/net/ipv6/netfilter/ip6_tables.c b/net/ipv6/netfilter/ip6_tables.c
112681index bb00c6f..16c90d7 100644
112682--- a/net/ipv6/netfilter/ip6_tables.c
112683+++ b/net/ipv6/netfilter/ip6_tables.c
112684@@ -1083,14 +1083,14 @@ static int compat_table_info(const struct xt_table_info *info,
112685 #endif
112686
112687 static int get_info(struct net *net, void __user *user,
112688- const int *len, int compat)
112689+ int len, int compat)
112690 {
112691 char name[XT_TABLE_MAXNAMELEN];
112692 struct xt_table *t;
112693 int ret;
112694
112695- if (*len != sizeof(struct ip6t_getinfo)) {
112696- duprintf("length %u != %zu\n", *len,
112697+ if (len != sizeof(struct ip6t_getinfo)) {
112698+ duprintf("length %u != %zu\n", len,
112699 sizeof(struct ip6t_getinfo));
112700 return -EINVAL;
112701 }
112702@@ -1127,7 +1127,7 @@ static int get_info(struct net *net, void __user *user,
112703 info.size = private->size;
112704 strcpy(info.name, name);
112705
112706- if (copy_to_user(user, &info, *len) != 0)
112707+ if (copy_to_user(user, &info, len) != 0)
112708 ret = -EFAULT;
112709 else
112710 ret = 0;
112711@@ -1983,7 +1983,7 @@ compat_do_ip6t_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
112712
112713 switch (cmd) {
112714 case IP6T_SO_GET_INFO:
112715- ret = get_info(sock_net(sk), user, len, 1);
112716+ ret = get_info(sock_net(sk), user, *len, 1);
112717 break;
112718 case IP6T_SO_GET_ENTRIES:
112719 ret = compat_get_entries(sock_net(sk), user, len);
112720@@ -2030,7 +2030,7 @@ do_ip6t_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
112721
112722 switch (cmd) {
112723 case IP6T_SO_GET_INFO:
112724- ret = get_info(sock_net(sk), user, len, 0);
112725+ ret = get_info(sock_net(sk), user, *len, 0);
112726 break;
112727
112728 case IP6T_SO_GET_ENTRIES:
112729diff --git a/net/ipv6/netfilter/nf_conntrack_reasm.c b/net/ipv6/netfilter/nf_conntrack_reasm.c
112730index 6f187c8..34b367f 100644
112731--- a/net/ipv6/netfilter/nf_conntrack_reasm.c
112732+++ b/net/ipv6/netfilter/nf_conntrack_reasm.c
112733@@ -96,12 +96,11 @@ static struct ctl_table nf_ct_frag6_sysctl_table[] = {
112734
112735 static int nf_ct_frag6_sysctl_register(struct net *net)
112736 {
112737- struct ctl_table *table;
112738+ ctl_table_no_const *table = NULL;
112739 struct ctl_table_header *hdr;
112740
112741- table = nf_ct_frag6_sysctl_table;
112742 if (!net_eq(net, &init_net)) {
112743- table = kmemdup(table, sizeof(nf_ct_frag6_sysctl_table),
112744+ table = kmemdup(nf_ct_frag6_sysctl_table, sizeof(nf_ct_frag6_sysctl_table),
112745 GFP_KERNEL);
112746 if (table == NULL)
112747 goto err_alloc;
112748@@ -112,9 +111,9 @@ static int nf_ct_frag6_sysctl_register(struct net *net)
112749 table[2].data = &net->nf_frag.frags.high_thresh;
112750 table[2].extra1 = &net->nf_frag.frags.low_thresh;
112751 table[2].extra2 = &init_net.nf_frag.frags.high_thresh;
112752- }
112753-
112754- hdr = register_net_sysctl(net, "net/netfilter", table);
112755+ hdr = register_net_sysctl(net, "net/netfilter", table);
112756+ } else
112757+ hdr = register_net_sysctl(net, "net/netfilter", nf_ct_frag6_sysctl_table);
112758 if (hdr == NULL)
112759 goto err_reg;
112760
112761@@ -122,8 +121,7 @@ static int nf_ct_frag6_sysctl_register(struct net *net)
112762 return 0;
112763
112764 err_reg:
112765- if (!net_eq(net, &init_net))
112766- kfree(table);
112767+ kfree(table);
112768 err_alloc:
112769 return -ENOMEM;
112770 }
112771diff --git a/net/ipv6/ping.c b/net/ipv6/ping.c
112772index a2dfff6..1e52e6d 100644
112773--- a/net/ipv6/ping.c
112774+++ b/net/ipv6/ping.c
112775@@ -241,6 +241,24 @@ static struct pernet_operations ping_v6_net_ops = {
112776 };
112777 #endif
112778
112779+static struct pingv6_ops real_pingv6_ops = {
112780+ .ipv6_recv_error = ipv6_recv_error,
112781+ .ip6_datagram_recv_common_ctl = ip6_datagram_recv_common_ctl,
112782+ .ip6_datagram_recv_specific_ctl = ip6_datagram_recv_specific_ctl,
112783+ .icmpv6_err_convert = icmpv6_err_convert,
112784+ .ipv6_icmp_error = ipv6_icmp_error,
112785+ .ipv6_chk_addr = ipv6_chk_addr,
112786+};
112787+
112788+static struct pingv6_ops dummy_pingv6_ops = {
112789+ .ipv6_recv_error = dummy_ipv6_recv_error,
112790+ .ip6_datagram_recv_common_ctl = dummy_ip6_datagram_recv_ctl,
112791+ .ip6_datagram_recv_specific_ctl = dummy_ip6_datagram_recv_ctl,
112792+ .icmpv6_err_convert = dummy_icmpv6_err_convert,
112793+ .ipv6_icmp_error = dummy_ipv6_icmp_error,
112794+ .ipv6_chk_addr = dummy_ipv6_chk_addr,
112795+};
112796+
112797 int __init pingv6_init(void)
112798 {
112799 #ifdef CONFIG_PROC_FS
112800@@ -248,13 +266,7 @@ int __init pingv6_init(void)
112801 if (ret)
112802 return ret;
112803 #endif
112804- pingv6_ops.ipv6_recv_error = ipv6_recv_error;
112805- pingv6_ops.ip6_datagram_recv_common_ctl = ip6_datagram_recv_common_ctl;
112806- pingv6_ops.ip6_datagram_recv_specific_ctl =
112807- ip6_datagram_recv_specific_ctl;
112808- pingv6_ops.icmpv6_err_convert = icmpv6_err_convert;
112809- pingv6_ops.ipv6_icmp_error = ipv6_icmp_error;
112810- pingv6_ops.ipv6_chk_addr = ipv6_chk_addr;
112811+ pingv6_ops = &real_pingv6_ops;
112812 return inet6_register_protosw(&pingv6_protosw);
112813 }
112814
112815@@ -263,14 +275,9 @@ int __init pingv6_init(void)
112816 */
112817 void pingv6_exit(void)
112818 {
112819- pingv6_ops.ipv6_recv_error = dummy_ipv6_recv_error;
112820- pingv6_ops.ip6_datagram_recv_common_ctl = dummy_ip6_datagram_recv_ctl;
112821- pingv6_ops.ip6_datagram_recv_specific_ctl = dummy_ip6_datagram_recv_ctl;
112822- pingv6_ops.icmpv6_err_convert = dummy_icmpv6_err_convert;
112823- pingv6_ops.ipv6_icmp_error = dummy_ipv6_icmp_error;
112824- pingv6_ops.ipv6_chk_addr = dummy_ipv6_chk_addr;
112825 #ifdef CONFIG_PROC_FS
112826 unregister_pernet_subsys(&ping_v6_net_ops);
112827 #endif
112828+ pingv6_ops = &dummy_pingv6_ops;
112829 inet6_unregister_protosw(&pingv6_protosw);
112830 }
112831diff --git a/net/ipv6/proc.c b/net/ipv6/proc.c
112832index 679253d0..70b653c 100644
112833--- a/net/ipv6/proc.c
112834+++ b/net/ipv6/proc.c
112835@@ -310,7 +310,7 @@ static int __net_init ipv6_proc_init_net(struct net *net)
112836 if (!proc_create("snmp6", S_IRUGO, net->proc_net, &snmp6_seq_fops))
112837 goto proc_snmp6_fail;
112838
112839- net->mib.proc_net_devsnmp6 = proc_mkdir("dev_snmp6", net->proc_net);
112840+ net->mib.proc_net_devsnmp6 = proc_mkdir_restrict("dev_snmp6", net->proc_net);
112841 if (!net->mib.proc_net_devsnmp6)
112842 goto proc_dev_snmp6_fail;
112843 return 0;
112844diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
112845index dae7f1a..783b20d 100644
112846--- a/net/ipv6/raw.c
112847+++ b/net/ipv6/raw.c
112848@@ -388,7 +388,7 @@ static inline int rawv6_rcv_skb(struct sock *sk, struct sk_buff *skb)
112849 {
112850 if ((raw6_sk(sk)->checksum || rcu_access_pointer(sk->sk_filter)) &&
112851 skb_checksum_complete(skb)) {
112852- atomic_inc(&sk->sk_drops);
112853+ atomic_inc_unchecked(&sk->sk_drops);
112854 kfree_skb(skb);
112855 return NET_RX_DROP;
112856 }
112857@@ -416,7 +416,7 @@ int rawv6_rcv(struct sock *sk, struct sk_buff *skb)
112858 struct raw6_sock *rp = raw6_sk(sk);
112859
112860 if (!xfrm6_policy_check(sk, XFRM_POLICY_IN, skb)) {
112861- atomic_inc(&sk->sk_drops);
112862+ atomic_inc_unchecked(&sk->sk_drops);
112863 kfree_skb(skb);
112864 return NET_RX_DROP;
112865 }
112866@@ -440,7 +440,7 @@ int rawv6_rcv(struct sock *sk, struct sk_buff *skb)
112867
112868 if (inet->hdrincl) {
112869 if (skb_checksum_complete(skb)) {
112870- atomic_inc(&sk->sk_drops);
112871+ atomic_inc_unchecked(&sk->sk_drops);
112872 kfree_skb(skb);
112873 return NET_RX_DROP;
112874 }
112875@@ -609,7 +609,7 @@ out:
112876 return err;
112877 }
112878
112879-static int rawv6_send_hdrinc(struct sock *sk, struct msghdr *msg, int length,
112880+static int rawv6_send_hdrinc(struct sock *sk, struct msghdr *msg, unsigned int length,
112881 struct flowi6 *fl6, struct dst_entry **dstp,
112882 unsigned int flags)
112883 {
112884@@ -915,12 +915,15 @@ do_confirm:
112885 static int rawv6_seticmpfilter(struct sock *sk, int level, int optname,
112886 char __user *optval, int optlen)
112887 {
112888+ struct icmp6_filter filter;
112889+
112890 switch (optname) {
112891 case ICMPV6_FILTER:
112892 if (optlen > sizeof(struct icmp6_filter))
112893 optlen = sizeof(struct icmp6_filter);
112894- if (copy_from_user(&raw6_sk(sk)->filter, optval, optlen))
112895+ if (copy_from_user(&filter, optval, optlen))
112896 return -EFAULT;
112897+ raw6_sk(sk)->filter = filter;
112898 return 0;
112899 default:
112900 return -ENOPROTOOPT;
112901@@ -933,6 +936,7 @@ static int rawv6_geticmpfilter(struct sock *sk, int level, int optname,
112902 char __user *optval, int __user *optlen)
112903 {
112904 int len;
112905+ struct icmp6_filter filter;
112906
112907 switch (optname) {
112908 case ICMPV6_FILTER:
112909@@ -944,7 +948,8 @@ static int rawv6_geticmpfilter(struct sock *sk, int level, int optname,
112910 len = sizeof(struct icmp6_filter);
112911 if (put_user(len, optlen))
112912 return -EFAULT;
112913- if (copy_to_user(optval, &raw6_sk(sk)->filter, len))
112914+ filter = raw6_sk(sk)->filter;
112915+ if (len > sizeof filter || copy_to_user(optval, &filter, len))
112916 return -EFAULT;
112917 return 0;
112918 default:
112919diff --git a/net/ipv6/reassembly.c b/net/ipv6/reassembly.c
112920index d7d70e6..bd5e9fc 100644
112921--- a/net/ipv6/reassembly.c
112922+++ b/net/ipv6/reassembly.c
112923@@ -626,12 +626,11 @@ static struct ctl_table ip6_frags_ctl_table[] = {
112924
112925 static int __net_init ip6_frags_ns_sysctl_register(struct net *net)
112926 {
112927- struct ctl_table *table;
112928+ ctl_table_no_const *table = NULL;
112929 struct ctl_table_header *hdr;
112930
112931- table = ip6_frags_ns_ctl_table;
112932 if (!net_eq(net, &init_net)) {
112933- table = kmemdup(table, sizeof(ip6_frags_ns_ctl_table), GFP_KERNEL);
112934+ table = kmemdup(ip6_frags_ns_ctl_table, sizeof(ip6_frags_ns_ctl_table), GFP_KERNEL);
112935 if (table == NULL)
112936 goto err_alloc;
112937
112938@@ -645,9 +644,10 @@ static int __net_init ip6_frags_ns_sysctl_register(struct net *net)
112939 /* Don't export sysctls to unprivileged users */
112940 if (net->user_ns != &init_user_ns)
112941 table[0].procname = NULL;
112942- }
112943+ hdr = register_net_sysctl(net, "net/ipv6", table);
112944+ } else
112945+ hdr = register_net_sysctl(net, "net/ipv6", ip6_frags_ns_ctl_table);
112946
112947- hdr = register_net_sysctl(net, "net/ipv6", table);
112948 if (hdr == NULL)
112949 goto err_reg;
112950
112951@@ -655,8 +655,7 @@ static int __net_init ip6_frags_ns_sysctl_register(struct net *net)
112952 return 0;
112953
112954 err_reg:
112955- if (!net_eq(net, &init_net))
112956- kfree(table);
112957+ kfree(table);
112958 err_alloc:
112959 return -ENOMEM;
112960 }
112961diff --git a/net/ipv6/route.c b/net/ipv6/route.c
112962index 4688bd4..584453d 100644
112963--- a/net/ipv6/route.c
112964+++ b/net/ipv6/route.c
112965@@ -3029,7 +3029,7 @@ struct ctl_table ipv6_route_table_template[] = {
112966
112967 struct ctl_table * __net_init ipv6_route_sysctl_init(struct net *net)
112968 {
112969- struct ctl_table *table;
112970+ ctl_table_no_const *table;
112971
112972 table = kmemdup(ipv6_route_table_template,
112973 sizeof(ipv6_route_table_template),
112974diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
112975index e4cbd57..02b1aaa 100644
112976--- a/net/ipv6/sit.c
112977+++ b/net/ipv6/sit.c
112978@@ -74,7 +74,7 @@ static void ipip6_tunnel_setup(struct net_device *dev);
112979 static void ipip6_dev_free(struct net_device *dev);
112980 static bool check_6rd(struct ip_tunnel *tunnel, const struct in6_addr *v6dst,
112981 __be32 *v4dst);
112982-static struct rtnl_link_ops sit_link_ops __read_mostly;
112983+static struct rtnl_link_ops sit_link_ops;
112984
112985 static int sit_net_id __read_mostly;
112986 struct sit_net {
112987@@ -1751,7 +1751,7 @@ static void ipip6_dellink(struct net_device *dev, struct list_head *head)
112988 unregister_netdevice_queue(dev, head);
112989 }
112990
112991-static struct rtnl_link_ops sit_link_ops __read_mostly = {
112992+static struct rtnl_link_ops sit_link_ops = {
112993 .kind = "sit",
112994 .maxtype = IFLA_IPTUN_MAX,
112995 .policy = ipip6_policy,
112996diff --git a/net/ipv6/sysctl_net_ipv6.c b/net/ipv6/sysctl_net_ipv6.c
112997index c5c10fa..2577d51 100644
112998--- a/net/ipv6/sysctl_net_ipv6.c
112999+++ b/net/ipv6/sysctl_net_ipv6.c
113000@@ -78,7 +78,7 @@ static struct ctl_table ipv6_rotable[] = {
113001
113002 static int __net_init ipv6_sysctl_net_init(struct net *net)
113003 {
113004- struct ctl_table *ipv6_table;
113005+ ctl_table_no_const *ipv6_table;
113006 struct ctl_table *ipv6_route_table;
113007 struct ctl_table *ipv6_icmp_table;
113008 int err;
113009diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
113010index 5ca3bc8..8c53c81 100644
113011--- a/net/ipv6/tcp_ipv6.c
113012+++ b/net/ipv6/tcp_ipv6.c
113013@@ -104,6 +104,10 @@ static void inet6_sk_rx_dst_set(struct sock *sk, const struct sk_buff *skb)
113014 }
113015 }
113016
113017+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
113018+extern int grsec_enable_blackhole;
113019+#endif
113020+
113021 static void tcp_v6_hash(struct sock *sk)
113022 {
113023 if (sk->sk_state != TCP_CLOSE) {
113024@@ -1345,6 +1349,9 @@ static int tcp_v6_do_rcv(struct sock *sk, struct sk_buff *skb)
113025 return 0;
113026
113027 reset:
113028+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
113029+ if (!grsec_enable_blackhole)
113030+#endif
113031 tcp_v6_send_reset(sk, skb);
113032 discard:
113033 if (opt_skb)
113034@@ -1454,12 +1461,20 @@ static int tcp_v6_rcv(struct sk_buff *skb)
113035
113036 sk = __inet6_lookup_skb(&tcp_hashinfo, skb, th->source, th->dest,
113037 inet6_iif(skb));
113038- if (!sk)
113039+ if (!sk) {
113040+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
113041+ ret = 1;
113042+#endif
113043 goto no_tcp_socket;
113044+ }
113045
113046 process:
113047- if (sk->sk_state == TCP_TIME_WAIT)
113048+ if (sk->sk_state == TCP_TIME_WAIT) {
113049+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
113050+ ret = 2;
113051+#endif
113052 goto do_time_wait;
113053+ }
113054
113055 if (hdr->hop_limit < inet6_sk(sk)->min_hopcount) {
113056 NET_INC_STATS_BH(net, LINUX_MIB_TCPMINTTLDROP);
113057@@ -1510,6 +1525,10 @@ csum_error:
113058 bad_packet:
113059 TCP_INC_STATS_BH(net, TCP_MIB_INERRS);
113060 } else {
113061+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
113062+ if (!grsec_enable_blackhole || (ret == 1 &&
113063+ (skb->dev->flags & IFF_LOOPBACK)))
113064+#endif
113065 tcp_v6_send_reset(NULL, skb);
113066 }
113067
113068diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
113069index 1c9512a..786b8d6 100644
113070--- a/net/ipv6/udp.c
113071+++ b/net/ipv6/udp.c
113072@@ -76,6 +76,10 @@ static unsigned int udp6_ehashfn(struct net *net,
113073 udp_ipv6_hash_secret + net_hash_mix(net));
113074 }
113075
113076+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
113077+extern int grsec_enable_blackhole;
113078+#endif
113079+
113080 int ipv6_rcv_saddr_equal(const struct sock *sk, const struct sock *sk2)
113081 {
113082 const struct in6_addr *sk2_rcv_saddr6 = inet6_rcv_saddr(sk2);
113083@@ -448,7 +452,7 @@ try_again:
113084 if (unlikely(err)) {
113085 trace_kfree_skb(skb, udpv6_recvmsg);
113086 if (!peeked) {
113087- atomic_inc(&sk->sk_drops);
113088+ atomic_inc_unchecked(&sk->sk_drops);
113089 if (is_udp4)
113090 UDP_INC_STATS_USER(sock_net(sk),
113091 UDP_MIB_INERRORS,
113092@@ -712,7 +716,7 @@ csum_error:
113093 UDP6_INC_STATS_BH(sock_net(sk), UDP_MIB_CSUMERRORS, is_udplite);
113094 drop:
113095 UDP6_INC_STATS_BH(sock_net(sk), UDP_MIB_INERRORS, is_udplite);
113096- atomic_inc(&sk->sk_drops);
113097+ atomic_inc_unchecked(&sk->sk_drops);
113098 kfree_skb(skb);
113099 return -1;
113100 }
113101@@ -753,7 +757,7 @@ static void flush_stack(struct sock **stack, unsigned int count,
113102 if (likely(skb1 == NULL))
113103 skb1 = (i == final) ? skb : skb_clone(skb, GFP_ATOMIC);
113104 if (!skb1) {
113105- atomic_inc(&sk->sk_drops);
113106+ atomic_inc_unchecked(&sk->sk_drops);
113107 UDP6_INC_STATS_BH(sock_net(sk), UDP_MIB_RCVBUFERRORS,
113108 IS_UDPLITE(sk));
113109 UDP6_INC_STATS_BH(sock_net(sk), UDP_MIB_INERRORS,
113110@@ -937,6 +941,9 @@ int __udp6_lib_rcv(struct sk_buff *skb, struct udp_table *udptable,
113111 goto csum_error;
113112
113113 UDP6_INC_STATS_BH(net, UDP_MIB_NOPORTS, proto == IPPROTO_UDPLITE);
113114+#ifdef CONFIG_GRKERNSEC_BLACKHOLE
113115+ if (!grsec_enable_blackhole || (skb->dev->flags & IFF_LOOPBACK))
113116+#endif
113117 icmpv6_send(skb, ICMPV6_DEST_UNREACH, ICMPV6_PORT_UNREACH, 0);
113118
113119 kfree_skb(skb);
113120diff --git a/net/ipv6/xfrm6_policy.c b/net/ipv6/xfrm6_policy.c
113121index 8d2d01b4..313511e 100644
113122--- a/net/ipv6/xfrm6_policy.c
113123+++ b/net/ipv6/xfrm6_policy.c
113124@@ -224,11 +224,11 @@ _decode_session6(struct sk_buff *skb, struct flowi *fl, int reverse)
113125 }
113126 }
113127
113128-static inline int xfrm6_garbage_collect(struct dst_ops *ops)
113129+static int xfrm6_garbage_collect(struct dst_ops *ops)
113130 {
113131 struct net *net = container_of(ops, struct net, xfrm.xfrm6_dst_ops);
113132
113133- xfrm6_policy_afinfo.garbage_collect(net);
113134+ xfrm_garbage_collect_deferred(net);
113135 return dst_entries_get_fast(ops) > ops->gc_thresh * 2;
113136 }
113137
113138@@ -341,19 +341,19 @@ static struct ctl_table xfrm6_policy_table[] = {
113139
113140 static int __net_init xfrm6_net_init(struct net *net)
113141 {
113142- struct ctl_table *table;
113143+ ctl_table_no_const *table = NULL;
113144 struct ctl_table_header *hdr;
113145
113146- table = xfrm6_policy_table;
113147 if (!net_eq(net, &init_net)) {
113148- table = kmemdup(table, sizeof(xfrm6_policy_table), GFP_KERNEL);
113149+ table = kmemdup(xfrm6_policy_table, sizeof(xfrm6_policy_table), GFP_KERNEL);
113150 if (!table)
113151 goto err_alloc;
113152
113153 table[0].data = &net->xfrm.xfrm6_dst_ops.gc_thresh;
113154- }
113155+ hdr = register_net_sysctl(net, "net/ipv6", table);
113156+ } else
113157+ hdr = register_net_sysctl(net, "net/ipv6", xfrm6_policy_table);
113158
113159- hdr = register_net_sysctl(net, "net/ipv6", table);
113160 if (!hdr)
113161 goto err_reg;
113162
113163@@ -361,8 +361,7 @@ static int __net_init xfrm6_net_init(struct net *net)
113164 return 0;
113165
113166 err_reg:
113167- if (!net_eq(net, &init_net))
113168- kfree(table);
113169+ kfree(table);
113170 err_alloc:
113171 return -ENOMEM;
113172 }
113173diff --git a/net/ipx/ipx_proc.c b/net/ipx/ipx_proc.c
113174index c1d247e..9e5949d 100644
113175--- a/net/ipx/ipx_proc.c
113176+++ b/net/ipx/ipx_proc.c
113177@@ -289,7 +289,7 @@ int __init ipx_proc_init(void)
113178 struct proc_dir_entry *p;
113179 int rc = -ENOMEM;
113180
113181- ipx_proc_dir = proc_mkdir("ipx", init_net.proc_net);
113182+ ipx_proc_dir = proc_mkdir_restrict("ipx", init_net.proc_net);
113183
113184 if (!ipx_proc_dir)
113185 goto out;
113186diff --git a/net/irda/ircomm/ircomm_tty.c b/net/irda/ircomm/ircomm_tty.c
113187index 683346d..cb0e12d 100644
113188--- a/net/irda/ircomm/ircomm_tty.c
113189+++ b/net/irda/ircomm/ircomm_tty.c
113190@@ -310,10 +310,10 @@ static int ircomm_tty_block_til_ready(struct ircomm_tty_cb *self,
113191 add_wait_queue(&port->open_wait, &wait);
113192
113193 pr_debug("%s(%d):block_til_ready before block on %s open_count=%d\n",
113194- __FILE__, __LINE__, tty->driver->name, port->count);
113195+ __FILE__, __LINE__, tty->driver->name, atomic_read(&port->count));
113196
113197 spin_lock_irqsave(&port->lock, flags);
113198- port->count--;
113199+ atomic_dec(&port->count);
113200 port->blocked_open++;
113201 spin_unlock_irqrestore(&port->lock, flags);
113202
113203@@ -348,7 +348,7 @@ static int ircomm_tty_block_til_ready(struct ircomm_tty_cb *self,
113204 }
113205
113206 pr_debug("%s(%d):block_til_ready blocking on %s open_count=%d\n",
113207- __FILE__, __LINE__, tty->driver->name, port->count);
113208+ __FILE__, __LINE__, tty->driver->name, atomic_read(&port->count));
113209
113210 schedule();
113211 }
113212@@ -358,12 +358,12 @@ static int ircomm_tty_block_til_ready(struct ircomm_tty_cb *self,
113213
113214 spin_lock_irqsave(&port->lock, flags);
113215 if (!tty_hung_up_p(filp))
113216- port->count++;
113217+ atomic_inc(&port->count);
113218 port->blocked_open--;
113219 spin_unlock_irqrestore(&port->lock, flags);
113220
113221 pr_debug("%s(%d):block_til_ready after blocking on %s open_count=%d\n",
113222- __FILE__, __LINE__, tty->driver->name, port->count);
113223+ __FILE__, __LINE__, tty->driver->name, atomic_read(&port->count));
113224
113225 if (!retval)
113226 port->flags |= ASYNC_NORMAL_ACTIVE;
113227@@ -433,12 +433,12 @@ static int ircomm_tty_open(struct tty_struct *tty, struct file *filp)
113228
113229 /* ++ is not atomic, so this should be protected - Jean II */
113230 spin_lock_irqsave(&self->port.lock, flags);
113231- self->port.count++;
113232+ atomic_inc(&self->port.count);
113233 spin_unlock_irqrestore(&self->port.lock, flags);
113234 tty_port_tty_set(&self->port, tty);
113235
113236 pr_debug("%s(), %s%d, count = %d\n", __func__ , tty->driver->name,
113237- self->line, self->port.count);
113238+ self->line, atomic_read(&self->port.count));
113239
113240 /* Not really used by us, but lets do it anyway */
113241 self->port.low_latency = (self->port.flags & ASYNC_LOW_LATENCY) ? 1 : 0;
113242@@ -961,7 +961,7 @@ static void ircomm_tty_hangup(struct tty_struct *tty)
113243 tty_kref_put(port->tty);
113244 }
113245 port->tty = NULL;
113246- port->count = 0;
113247+ atomic_set(&port->count, 0);
113248 spin_unlock_irqrestore(&port->lock, flags);
113249
113250 wake_up_interruptible(&port->open_wait);
113251@@ -1308,7 +1308,7 @@ static void ircomm_tty_line_info(struct ircomm_tty_cb *self, struct seq_file *m)
113252 seq_putc(m, '\n');
113253
113254 seq_printf(m, "Role: %s\n", self->client ? "client" : "server");
113255- seq_printf(m, "Open count: %d\n", self->port.count);
113256+ seq_printf(m, "Open count: %d\n", atomic_read(&self->port.count));
113257 seq_printf(m, "Max data size: %d\n", self->max_data_size);
113258 seq_printf(m, "Max header size: %d\n", self->max_header_size);
113259
113260diff --git a/net/irda/irproc.c b/net/irda/irproc.c
113261index b9ac598..f88cc56 100644
113262--- a/net/irda/irproc.c
113263+++ b/net/irda/irproc.c
113264@@ -66,7 +66,7 @@ void __init irda_proc_register(void)
113265 {
113266 int i;
113267
113268- proc_irda = proc_mkdir("irda", init_net.proc_net);
113269+ proc_irda = proc_mkdir_restrict("irda", init_net.proc_net);
113270 if (proc_irda == NULL)
113271 return;
113272
113273diff --git a/net/iucv/af_iucv.c b/net/iucv/af_iucv.c
113274index 53d9311..cbaf99f 100644
113275--- a/net/iucv/af_iucv.c
113276+++ b/net/iucv/af_iucv.c
113277@@ -686,10 +686,10 @@ static void __iucv_auto_name(struct iucv_sock *iucv)
113278 {
113279 char name[12];
113280
113281- sprintf(name, "%08x", atomic_inc_return(&iucv_sk_list.autobind_name));
113282+ sprintf(name, "%08x", atomic_inc_return_unchecked(&iucv_sk_list.autobind_name));
113283 while (__iucv_get_sock_by_name(name)) {
113284 sprintf(name, "%08x",
113285- atomic_inc_return(&iucv_sk_list.autobind_name));
113286+ atomic_inc_return_unchecked(&iucv_sk_list.autobind_name));
113287 }
113288 memcpy(iucv->src_name, name, 8);
113289 }
113290diff --git a/net/iucv/iucv.c b/net/iucv/iucv.c
113291index 2a6a1fd..6c112b0 100644
113292--- a/net/iucv/iucv.c
113293+++ b/net/iucv/iucv.c
113294@@ -702,7 +702,7 @@ static int iucv_cpu_notify(struct notifier_block *self,
113295 return NOTIFY_OK;
113296 }
113297
113298-static struct notifier_block __refdata iucv_cpu_notifier = {
113299+static struct notifier_block iucv_cpu_notifier = {
113300 .notifier_call = iucv_cpu_notify,
113301 };
113302
113303diff --git a/net/key/af_key.c b/net/key/af_key.c
113304index f8ac939..1e189bf 100644
113305--- a/net/key/af_key.c
113306+++ b/net/key/af_key.c
113307@@ -3049,10 +3049,10 @@ static int pfkey_send_policy_notify(struct xfrm_policy *xp, int dir, const struc
113308 static u32 get_acqseq(void)
113309 {
113310 u32 res;
113311- static atomic_t acqseq;
113312+ static atomic_unchecked_t acqseq;
113313
113314 do {
113315- res = atomic_inc_return(&acqseq);
113316+ res = atomic_inc_return_unchecked(&acqseq);
113317 } while (!res);
113318 return res;
113319 }
113320diff --git a/net/l2tp/l2tp_eth.c b/net/l2tp/l2tp_eth.c
113321index 781b3a2..73a7434 100644
113322--- a/net/l2tp/l2tp_eth.c
113323+++ b/net/l2tp/l2tp_eth.c
113324@@ -42,12 +42,12 @@ struct l2tp_eth {
113325 struct sock *tunnel_sock;
113326 struct l2tp_session *session;
113327 struct list_head list;
113328- atomic_long_t tx_bytes;
113329- atomic_long_t tx_packets;
113330- atomic_long_t tx_dropped;
113331- atomic_long_t rx_bytes;
113332- atomic_long_t rx_packets;
113333- atomic_long_t rx_errors;
113334+ atomic_long_unchecked_t tx_bytes;
113335+ atomic_long_unchecked_t tx_packets;
113336+ atomic_long_unchecked_t tx_dropped;
113337+ atomic_long_unchecked_t rx_bytes;
113338+ atomic_long_unchecked_t rx_packets;
113339+ atomic_long_unchecked_t rx_errors;
113340 };
113341
113342 /* via l2tp_session_priv() */
113343@@ -98,10 +98,10 @@ static int l2tp_eth_dev_xmit(struct sk_buff *skb, struct net_device *dev)
113344 int ret = l2tp_xmit_skb(session, skb, session->hdr_len);
113345
113346 if (likely(ret == NET_XMIT_SUCCESS)) {
113347- atomic_long_add(len, &priv->tx_bytes);
113348- atomic_long_inc(&priv->tx_packets);
113349+ atomic_long_add_unchecked(len, &priv->tx_bytes);
113350+ atomic_long_inc_unchecked(&priv->tx_packets);
113351 } else {
113352- atomic_long_inc(&priv->tx_dropped);
113353+ atomic_long_inc_unchecked(&priv->tx_dropped);
113354 }
113355 return NETDEV_TX_OK;
113356 }
113357@@ -111,12 +111,12 @@ static struct rtnl_link_stats64 *l2tp_eth_get_stats64(struct net_device *dev,
113358 {
113359 struct l2tp_eth *priv = netdev_priv(dev);
113360
113361- stats->tx_bytes = atomic_long_read(&priv->tx_bytes);
113362- stats->tx_packets = atomic_long_read(&priv->tx_packets);
113363- stats->tx_dropped = atomic_long_read(&priv->tx_dropped);
113364- stats->rx_bytes = atomic_long_read(&priv->rx_bytes);
113365- stats->rx_packets = atomic_long_read(&priv->rx_packets);
113366- stats->rx_errors = atomic_long_read(&priv->rx_errors);
113367+ stats->tx_bytes = atomic_long_read_unchecked(&priv->tx_bytes);
113368+ stats->tx_packets = atomic_long_read_unchecked(&priv->tx_packets);
113369+ stats->tx_dropped = atomic_long_read_unchecked(&priv->tx_dropped);
113370+ stats->rx_bytes = atomic_long_read_unchecked(&priv->rx_bytes);
113371+ stats->rx_packets = atomic_long_read_unchecked(&priv->rx_packets);
113372+ stats->rx_errors = atomic_long_read_unchecked(&priv->rx_errors);
113373 return stats;
113374 }
113375
113376@@ -167,15 +167,15 @@ static void l2tp_eth_dev_recv(struct l2tp_session *session, struct sk_buff *skb,
113377 nf_reset(skb);
113378
113379 if (dev_forward_skb(dev, skb) == NET_RX_SUCCESS) {
113380- atomic_long_inc(&priv->rx_packets);
113381- atomic_long_add(data_len, &priv->rx_bytes);
113382+ atomic_long_inc_unchecked(&priv->rx_packets);
113383+ atomic_long_add_unchecked(data_len, &priv->rx_bytes);
113384 } else {
113385- atomic_long_inc(&priv->rx_errors);
113386+ atomic_long_inc_unchecked(&priv->rx_errors);
113387 }
113388 return;
113389
113390 error:
113391- atomic_long_inc(&priv->rx_errors);
113392+ atomic_long_inc_unchecked(&priv->rx_errors);
113393 kfree_skb(skb);
113394 }
113395
113396diff --git a/net/l2tp/l2tp_ip.c b/net/l2tp/l2tp_ip.c
113397index 05dfc8aa..df6cfd7 100644
113398--- a/net/l2tp/l2tp_ip.c
113399+++ b/net/l2tp/l2tp_ip.c
113400@@ -608,7 +608,7 @@ static struct inet_protosw l2tp_ip_protosw = {
113401 .ops = &l2tp_ip_ops,
113402 };
113403
113404-static struct net_protocol l2tp_ip_protocol __read_mostly = {
113405+static const struct net_protocol l2tp_ip_protocol = {
113406 .handler = l2tp_ip_recv,
113407 .netns_ok = 1,
113408 };
113409diff --git a/net/l2tp/l2tp_ip6.c b/net/l2tp/l2tp_ip6.c
113410index 8611f1b..bc60a2d 100644
113411--- a/net/l2tp/l2tp_ip6.c
113412+++ b/net/l2tp/l2tp_ip6.c
113413@@ -757,7 +757,7 @@ static struct inet_protosw l2tp_ip6_protosw = {
113414 .ops = &l2tp_ip6_ops,
113415 };
113416
113417-static struct inet6_protocol l2tp_ip6_protocol __read_mostly = {
113418+static const struct inet6_protocol l2tp_ip6_protocol = {
113419 .handler = l2tp_ip6_recv,
113420 };
113421
113422diff --git a/net/llc/llc_proc.c b/net/llc/llc_proc.c
113423index 1a3c7e0..80f8b0c 100644
113424--- a/net/llc/llc_proc.c
113425+++ b/net/llc/llc_proc.c
113426@@ -247,7 +247,7 @@ int __init llc_proc_init(void)
113427 int rc = -ENOMEM;
113428 struct proc_dir_entry *p;
113429
113430- llc_proc_dir = proc_mkdir("llc", init_net.proc_net);
113431+ llc_proc_dir = proc_mkdir_restrict("llc", init_net.proc_net);
113432 if (!llc_proc_dir)
113433 goto out;
113434
113435diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
113436index dd4ff36..3462997 100644
113437--- a/net/mac80211/cfg.c
113438+++ b/net/mac80211/cfg.c
113439@@ -581,7 +581,7 @@ static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
113440 ret = ieee80211_vif_use_channel(sdata, chandef,
113441 IEEE80211_CHANCTX_EXCLUSIVE);
113442 }
113443- } else if (local->open_count == local->monitors) {
113444+ } else if (local_read(&local->open_count) == local->monitors) {
113445 local->_oper_chandef = *chandef;
113446 ieee80211_hw_config(local, 0);
113447 }
113448@@ -3468,7 +3468,7 @@ static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
113449 else
113450 local->probe_req_reg--;
113451
113452- if (!local->open_count)
113453+ if (!local_read(&local->open_count))
113454 break;
113455
113456 ieee80211_queue_work(&local->hw, &local->reconfig_filter);
113457@@ -3603,8 +3603,8 @@ static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
113458 if (chanctx_conf) {
113459 *chandef = sdata->vif.bss_conf.chandef;
113460 ret = 0;
113461- } else if (local->open_count > 0 &&
113462- local->open_count == local->monitors &&
113463+ } else if (local_read(&local->open_count) > 0 &&
113464+ local_read(&local->open_count) == local->monitors &&
113465 sdata->vif.type == NL80211_IFTYPE_MONITOR) {
113466 if (local->use_chanctx)
113467 *chandef = local->monitor_chandef;
113468diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
113469index 81e8dc5..5b77c58 100644
113470--- a/net/mac80211/ieee80211_i.h
113471+++ b/net/mac80211/ieee80211_i.h
113472@@ -29,6 +29,7 @@
113473 #include <net/ieee80211_radiotap.h>
113474 #include <net/cfg80211.h>
113475 #include <net/mac80211.h>
113476+#include <asm/local.h>
113477 #include "key.h"
113478 #include "sta_info.h"
113479 #include "debug.h"
113480@@ -1129,7 +1130,7 @@ struct ieee80211_local {
113481 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
113482 spinlock_t queue_stop_reason_lock;
113483
113484- int open_count;
113485+ local_t open_count;
113486 int monitors, cooked_mntrs;
113487 /* number of interfaces with corresponding FIF_ flags */
113488 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll,
113489diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
113490index 81a2751..c06a026 100644
113491--- a/net/mac80211/iface.c
113492+++ b/net/mac80211/iface.c
113493@@ -544,7 +544,7 @@ int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up)
113494 break;
113495 }
113496
113497- if (local->open_count == 0) {
113498+ if (local_read(&local->open_count) == 0) {
113499 res = drv_start(local);
113500 if (res)
113501 goto err_del_bss;
113502@@ -591,7 +591,7 @@ int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up)
113503 res = drv_add_interface(local, sdata);
113504 if (res)
113505 goto err_stop;
113506- } else if (local->monitors == 0 && local->open_count == 0) {
113507+ } else if (local->monitors == 0 && local_read(&local->open_count) == 0) {
113508 res = ieee80211_add_virtual_monitor(local);
113509 if (res)
113510 goto err_stop;
113511@@ -701,7 +701,7 @@ int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up)
113512 atomic_inc(&local->iff_promiscs);
113513
113514 if (coming_up)
113515- local->open_count++;
113516+ local_inc(&local->open_count);
113517
113518 if (hw_reconf_flags)
113519 ieee80211_hw_config(local, hw_reconf_flags);
113520@@ -739,7 +739,7 @@ int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up)
113521 err_del_interface:
113522 drv_remove_interface(local, sdata);
113523 err_stop:
113524- if (!local->open_count)
113525+ if (!local_read(&local->open_count))
113526 drv_stop(local);
113527 err_del_bss:
113528 sdata->bss = NULL;
113529@@ -907,7 +907,7 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
113530 }
113531
113532 if (going_down)
113533- local->open_count--;
113534+ local_dec(&local->open_count);
113535
113536 switch (sdata->vif.type) {
113537 case NL80211_IFTYPE_AP_VLAN:
113538@@ -969,7 +969,7 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
113539 }
113540 spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
113541
113542- if (local->open_count == 0)
113543+ if (local_read(&local->open_count) == 0)
113544 ieee80211_clear_tx_pending(local);
113545
113546 /*
113547@@ -1012,7 +1012,7 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
113548 if (cancel_scan)
113549 flush_delayed_work(&local->scan_work);
113550
113551- if (local->open_count == 0) {
113552+ if (local_read(&local->open_count) == 0) {
113553 ieee80211_stop_device(local);
113554
113555 /* no reconfiguring after stop! */
113556@@ -1023,7 +1023,7 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
113557 ieee80211_configure_filter(local);
113558 ieee80211_hw_config(local, hw_reconf_flags);
113559
113560- if (local->monitors == local->open_count)
113561+ if (local->monitors == local_read(&local->open_count))
113562 ieee80211_add_virtual_monitor(local);
113563 }
113564
113565diff --git a/net/mac80211/main.c b/net/mac80211/main.c
113566index 5e09d35..e2fdbe2 100644
113567--- a/net/mac80211/main.c
113568+++ b/net/mac80211/main.c
113569@@ -175,7 +175,7 @@ int ieee80211_hw_config(struct ieee80211_local *local, u32 changed)
113570 changed &= ~(IEEE80211_CONF_CHANGE_CHANNEL |
113571 IEEE80211_CONF_CHANGE_POWER);
113572
113573- if (changed && local->open_count) {
113574+ if (changed && local_read(&local->open_count)) {
113575 ret = drv_config(local, changed);
113576 /*
113577 * Goal:
113578diff --git a/net/mac80211/pm.c b/net/mac80211/pm.c
113579index ca405b6..6cc8bee 100644
113580--- a/net/mac80211/pm.c
113581+++ b/net/mac80211/pm.c
113582@@ -12,7 +12,7 @@ int __ieee80211_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
113583 struct ieee80211_sub_if_data *sdata;
113584 struct sta_info *sta;
113585
113586- if (!local->open_count)
113587+ if (!local_read(&local->open_count))
113588 goto suspend;
113589
113590 ieee80211_scan_cancel(local);
113591@@ -59,7 +59,7 @@ int __ieee80211_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
113592 cancel_work_sync(&local->dynamic_ps_enable_work);
113593 del_timer_sync(&local->dynamic_ps_timer);
113594
113595- local->wowlan = wowlan && local->open_count;
113596+ local->wowlan = wowlan && local_read(&local->open_count);
113597 if (local->wowlan) {
113598 int err = drv_suspend(local, wowlan);
113599 if (err < 0) {
113600@@ -126,7 +126,7 @@ int __ieee80211_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
113601 WARN_ON(!list_empty(&local->chanctx_list));
113602
113603 /* stop hardware - this must stop RX */
113604- if (local->open_count)
113605+ if (local_read(&local->open_count))
113606 ieee80211_stop_device(local);
113607
113608 suspend:
113609diff --git a/net/mac80211/rate.c b/net/mac80211/rate.c
113610index d53355b..21f583a 100644
113611--- a/net/mac80211/rate.c
113612+++ b/net/mac80211/rate.c
113613@@ -724,7 +724,7 @@ int ieee80211_init_rate_ctrl_alg(struct ieee80211_local *local,
113614
113615 ASSERT_RTNL();
113616
113617- if (local->open_count)
113618+ if (local_read(&local->open_count))
113619 return -EBUSY;
113620
113621 if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) {
113622diff --git a/net/mac80211/util.c b/net/mac80211/util.c
113623index 747bdcf..eb2b981 100644
113624--- a/net/mac80211/util.c
113625+++ b/net/mac80211/util.c
113626@@ -1741,7 +1741,7 @@ int ieee80211_reconfig(struct ieee80211_local *local)
113627 bool sched_scan_stopped = false;
113628
113629 /* nothing to do if HW shouldn't run */
113630- if (!local->open_count)
113631+ if (!local_read(&local->open_count))
113632 goto wake_up;
113633
113634 #ifdef CONFIG_PM
113635@@ -1993,7 +1993,7 @@ int ieee80211_reconfig(struct ieee80211_local *local)
113636 local->in_reconfig = false;
113637 barrier();
113638
113639- if (local->monitors == local->open_count && local->monitors > 0)
113640+ if (local->monitors == local_read(&local->open_count) && local->monitors > 0)
113641 ieee80211_add_virtual_monitor(local);
113642
113643 /*
113644@@ -2048,7 +2048,7 @@ int ieee80211_reconfig(struct ieee80211_local *local)
113645 * If this is for hw restart things are still running.
113646 * We may want to change that later, however.
113647 */
113648- if (local->open_count && (!local->suspended || reconfig_due_to_wowlan))
113649+ if (local_read(&local->open_count) && (!local->suspended || reconfig_due_to_wowlan))
113650 drv_reconfig_complete(local, IEEE80211_RECONFIG_TYPE_RESTART);
113651
113652 if (!local->suspended)
113653@@ -2072,7 +2072,7 @@ int ieee80211_reconfig(struct ieee80211_local *local)
113654 flush_delayed_work(&local->scan_work);
113655 }
113656
113657- if (local->open_count && !reconfig_due_to_wowlan)
113658+ if (local_read(&local->open_count) && !reconfig_due_to_wowlan)
113659 drv_reconfig_complete(local, IEEE80211_RECONFIG_TYPE_SUSPEND);
113660
113661 list_for_each_entry(sdata, &local->interfaces, list) {
113662diff --git a/net/netfilter/Kconfig b/net/netfilter/Kconfig
113663index b02660f..c0f791c 100644
113664--- a/net/netfilter/Kconfig
113665+++ b/net/netfilter/Kconfig
113666@@ -1122,6 +1122,16 @@ config NETFILTER_XT_MATCH_ESP
113667
113668 To compile it as a module, choose M here. If unsure, say N.
113669
113670+config NETFILTER_XT_MATCH_GRADM
113671+ tristate '"gradm" match support'
113672+ depends on NETFILTER_XTABLES && NETFILTER_ADVANCED
113673+ depends on GRKERNSEC && !GRKERNSEC_NO_RBAC
113674+ ---help---
113675+ The gradm match allows to match on grsecurity RBAC being enabled.
113676+ It is useful when iptables rules are applied early on bootup to
113677+ prevent connections to the machine (except from a trusted host)
113678+ while the RBAC system is disabled.
113679+
113680 config NETFILTER_XT_MATCH_HASHLIMIT
113681 tristate '"hashlimit" match support'
113682 depends on (IP6_NF_IPTABLES || IP6_NF_IPTABLES=n)
113683diff --git a/net/netfilter/Makefile b/net/netfilter/Makefile
113684index 89f73a9..e4e5bd9 100644
113685--- a/net/netfilter/Makefile
113686+++ b/net/netfilter/Makefile
113687@@ -139,6 +139,7 @@ obj-$(CONFIG_NETFILTER_XT_MATCH_DEVGROUP) += xt_devgroup.o
113688 obj-$(CONFIG_NETFILTER_XT_MATCH_DSCP) += xt_dscp.o
113689 obj-$(CONFIG_NETFILTER_XT_MATCH_ECN) += xt_ecn.o
113690 obj-$(CONFIG_NETFILTER_XT_MATCH_ESP) += xt_esp.o
113691+obj-$(CONFIG_NETFILTER_XT_MATCH_GRADM) += xt_gradm.o
113692 obj-$(CONFIG_NETFILTER_XT_MATCH_HASHLIMIT) += xt_hashlimit.o
113693 obj-$(CONFIG_NETFILTER_XT_MATCH_HELPER) += xt_helper.o
113694 obj-$(CONFIG_NETFILTER_XT_MATCH_HL) += xt_hl.o
113695diff --git a/net/netfilter/ipset/ip_set_core.c b/net/netfilter/ipset/ip_set_core.c
113696index d259da3..6a32b2c 100644
113697--- a/net/netfilter/ipset/ip_set_core.c
113698+++ b/net/netfilter/ipset/ip_set_core.c
113699@@ -1952,7 +1952,7 @@ done:
113700 return ret;
113701 }
113702
113703-static struct nf_sockopt_ops so_set __read_mostly = {
113704+static struct nf_sockopt_ops so_set = {
113705 .pf = PF_INET,
113706 .get_optmin = SO_IP_SET,
113707 .get_optmax = SO_IP_SET + 1,
113708diff --git a/net/netfilter/ipvs/ip_vs_conn.c b/net/netfilter/ipvs/ip_vs_conn.c
113709index b0f7b62..0541842 100644
113710--- a/net/netfilter/ipvs/ip_vs_conn.c
113711+++ b/net/netfilter/ipvs/ip_vs_conn.c
113712@@ -572,7 +572,7 @@ ip_vs_bind_dest(struct ip_vs_conn *cp, struct ip_vs_dest *dest)
113713 /* Increase the refcnt counter of the dest */
113714 ip_vs_dest_hold(dest);
113715
113716- conn_flags = atomic_read(&dest->conn_flags);
113717+ conn_flags = atomic_read_unchecked(&dest->conn_flags);
113718 if (cp->protocol != IPPROTO_UDP)
113719 conn_flags &= ~IP_VS_CONN_F_ONE_PACKET;
113720 flags = cp->flags;
113721@@ -922,7 +922,7 @@ ip_vs_conn_new(const struct ip_vs_conn_param *p, int dest_af,
113722
113723 cp->control = NULL;
113724 atomic_set(&cp->n_control, 0);
113725- atomic_set(&cp->in_pkts, 0);
113726+ atomic_set_unchecked(&cp->in_pkts, 0);
113727
113728 cp->packet_xmit = NULL;
113729 cp->app = NULL;
113730@@ -1229,7 +1229,7 @@ static inline int todrop_entry(struct ip_vs_conn *cp)
113731
113732 /* Don't drop the entry if its number of incoming packets is not
113733 located in [0, 8] */
113734- i = atomic_read(&cp->in_pkts);
113735+ i = atomic_read_unchecked(&cp->in_pkts);
113736 if (i > 8 || i < 0) return 0;
113737
113738 if (!todrop_rate[i]) return 0;
113739diff --git a/net/netfilter/ipvs/ip_vs_core.c b/net/netfilter/ipvs/ip_vs_core.c
113740index b87ca32..76c7799 100644
113741--- a/net/netfilter/ipvs/ip_vs_core.c
113742+++ b/net/netfilter/ipvs/ip_vs_core.c
113743@@ -568,7 +568,7 @@ int ip_vs_leave(struct ip_vs_service *svc, struct sk_buff *skb,
113744 ret = cp->packet_xmit(skb, cp, pd->pp, iph);
113745 /* do not touch skb anymore */
113746
113747- atomic_inc(&cp->in_pkts);
113748+ atomic_inc_unchecked(&cp->in_pkts);
113749 ip_vs_conn_put(cp);
113750 return ret;
113751 }
113752@@ -1723,7 +1723,7 @@ ip_vs_in(unsigned int hooknum, struct sk_buff *skb, int af)
113753 if (cp->flags & IP_VS_CONN_F_ONE_PACKET)
113754 pkts = sysctl_sync_threshold(ipvs);
113755 else
113756- pkts = atomic_add_return(1, &cp->in_pkts);
113757+ pkts = atomic_add_return_unchecked(1, &cp->in_pkts);
113758
113759 if (ipvs->sync_state & IP_VS_STATE_MASTER)
113760 ip_vs_sync_conn(net, cp, pkts);
113761diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c
113762index ed99448..3ba6cad 100644
113763--- a/net/netfilter/ipvs/ip_vs_ctl.c
113764+++ b/net/netfilter/ipvs/ip_vs_ctl.c
113765@@ -799,7 +799,7 @@ __ip_vs_update_dest(struct ip_vs_service *svc, struct ip_vs_dest *dest,
113766 */
113767 ip_vs_rs_hash(ipvs, dest);
113768 }
113769- atomic_set(&dest->conn_flags, conn_flags);
113770+ atomic_set_unchecked(&dest->conn_flags, conn_flags);
113771
113772 /* bind the service */
113773 old_svc = rcu_dereference_protected(dest->svc, 1);
113774@@ -1664,7 +1664,7 @@ proc_do_sync_ports(struct ctl_table *table, int write,
113775 * align with netns init in ip_vs_control_net_init()
113776 */
113777
113778-static struct ctl_table vs_vars[] = {
113779+static ctl_table_no_const vs_vars[] __read_only = {
113780 {
113781 .procname = "amemthresh",
113782 .maxlen = sizeof(int),
113783@@ -1999,7 +1999,7 @@ static int ip_vs_info_seq_show(struct seq_file *seq, void *v)
113784 " %-7s %-6d %-10d %-10d\n",
113785 &dest->addr.in6,
113786 ntohs(dest->port),
113787- ip_vs_fwd_name(atomic_read(&dest->conn_flags)),
113788+ ip_vs_fwd_name(atomic_read_unchecked(&dest->conn_flags)),
113789 atomic_read(&dest->weight),
113790 atomic_read(&dest->activeconns),
113791 atomic_read(&dest->inactconns));
113792@@ -2010,7 +2010,7 @@ static int ip_vs_info_seq_show(struct seq_file *seq, void *v)
113793 "%-7s %-6d %-10d %-10d\n",
113794 ntohl(dest->addr.ip),
113795 ntohs(dest->port),
113796- ip_vs_fwd_name(atomic_read(&dest->conn_flags)),
113797+ ip_vs_fwd_name(atomic_read_unchecked(&dest->conn_flags)),
113798 atomic_read(&dest->weight),
113799 atomic_read(&dest->activeconns),
113800 atomic_read(&dest->inactconns));
113801@@ -2499,7 +2499,7 @@ __ip_vs_get_dest_entries(struct net *net, const struct ip_vs_get_dests *get,
113802
113803 entry.addr = dest->addr.ip;
113804 entry.port = dest->port;
113805- entry.conn_flags = atomic_read(&dest->conn_flags);
113806+ entry.conn_flags = atomic_read_unchecked(&dest->conn_flags);
113807 entry.weight = atomic_read(&dest->weight);
113808 entry.u_threshold = dest->u_threshold;
113809 entry.l_threshold = dest->l_threshold;
113810@@ -3040,7 +3040,7 @@ static int ip_vs_genl_fill_dest(struct sk_buff *skb, struct ip_vs_dest *dest)
113811 if (nla_put(skb, IPVS_DEST_ATTR_ADDR, sizeof(dest->addr), &dest->addr) ||
113812 nla_put_be16(skb, IPVS_DEST_ATTR_PORT, dest->port) ||
113813 nla_put_u32(skb, IPVS_DEST_ATTR_FWD_METHOD,
113814- (atomic_read(&dest->conn_flags) &
113815+ (atomic_read_unchecked(&dest->conn_flags) &
113816 IP_VS_CONN_F_FWD_MASK)) ||
113817 nla_put_u32(skb, IPVS_DEST_ATTR_WEIGHT,
113818 atomic_read(&dest->weight)) ||
113819@@ -3675,7 +3675,7 @@ static int __net_init ip_vs_control_net_init_sysctl(struct net *net)
113820 {
113821 int idx;
113822 struct netns_ipvs *ipvs = net_ipvs(net);
113823- struct ctl_table *tbl;
113824+ ctl_table_no_const *tbl;
113825
113826 atomic_set(&ipvs->dropentry, 0);
113827 spin_lock_init(&ipvs->dropentry_lock);
113828diff --git a/net/netfilter/ipvs/ip_vs_lblc.c b/net/netfilter/ipvs/ip_vs_lblc.c
113829index 127f140..553d652 100644
113830--- a/net/netfilter/ipvs/ip_vs_lblc.c
113831+++ b/net/netfilter/ipvs/ip_vs_lblc.c
113832@@ -118,7 +118,7 @@ struct ip_vs_lblc_table {
113833 * IPVS LBLC sysctl table
113834 */
113835 #ifdef CONFIG_SYSCTL
113836-static struct ctl_table vs_vars_table[] = {
113837+static ctl_table_no_const vs_vars_table[] __read_only = {
113838 {
113839 .procname = "lblc_expiration",
113840 .data = NULL,
113841diff --git a/net/netfilter/ipvs/ip_vs_lblcr.c b/net/netfilter/ipvs/ip_vs_lblcr.c
113842index 2229d2d..b32b785 100644
113843--- a/net/netfilter/ipvs/ip_vs_lblcr.c
113844+++ b/net/netfilter/ipvs/ip_vs_lblcr.c
113845@@ -289,7 +289,7 @@ struct ip_vs_lblcr_table {
113846 * IPVS LBLCR sysctl table
113847 */
113848
113849-static struct ctl_table vs_vars_table[] = {
113850+static ctl_table_no_const vs_vars_table[] __read_only = {
113851 {
113852 .procname = "lblcr_expiration",
113853 .data = NULL,
113854diff --git a/net/netfilter/ipvs/ip_vs_sync.c b/net/netfilter/ipvs/ip_vs_sync.c
113855index d93ceeb..4556144 100644
113856--- a/net/netfilter/ipvs/ip_vs_sync.c
113857+++ b/net/netfilter/ipvs/ip_vs_sync.c
113858@@ -609,7 +609,7 @@ static void ip_vs_sync_conn_v0(struct net *net, struct ip_vs_conn *cp,
113859 cp = cp->control;
113860 if (cp) {
113861 if (cp->flags & IP_VS_CONN_F_TEMPLATE)
113862- pkts = atomic_add_return(1, &cp->in_pkts);
113863+ pkts = atomic_add_return_unchecked(1, &cp->in_pkts);
113864 else
113865 pkts = sysctl_sync_threshold(ipvs);
113866 ip_vs_sync_conn(net, cp->control, pkts);
113867@@ -771,7 +771,7 @@ control:
113868 if (!cp)
113869 return;
113870 if (cp->flags & IP_VS_CONN_F_TEMPLATE)
113871- pkts = atomic_add_return(1, &cp->in_pkts);
113872+ pkts = atomic_add_return_unchecked(1, &cp->in_pkts);
113873 else
113874 pkts = sysctl_sync_threshold(ipvs);
113875 goto sloop;
113876@@ -902,7 +902,7 @@ static void ip_vs_proc_conn(struct net *net, struct ip_vs_conn_param *param,
113877
113878 if (opt)
113879 memcpy(&cp->in_seq, opt, sizeof(*opt));
113880- atomic_set(&cp->in_pkts, sysctl_sync_threshold(ipvs));
113881+ atomic_set_unchecked(&cp->in_pkts, sysctl_sync_threshold(ipvs));
113882 cp->state = state;
113883 cp->old_state = cp->state;
113884 /*
113885diff --git a/net/netfilter/ipvs/ip_vs_xmit.c b/net/netfilter/ipvs/ip_vs_xmit.c
113886index 3aedbda..6a63567 100644
113887--- a/net/netfilter/ipvs/ip_vs_xmit.c
113888+++ b/net/netfilter/ipvs/ip_vs_xmit.c
113889@@ -1214,7 +1214,7 @@ ip_vs_icmp_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
113890 else
113891 rc = NF_ACCEPT;
113892 /* do not touch skb anymore */
113893- atomic_inc(&cp->in_pkts);
113894+ atomic_inc_unchecked(&cp->in_pkts);
113895 goto out;
113896 }
113897
113898@@ -1307,7 +1307,7 @@ ip_vs_icmp_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp,
113899 else
113900 rc = NF_ACCEPT;
113901 /* do not touch skb anymore */
113902- atomic_inc(&cp->in_pkts);
113903+ atomic_inc_unchecked(&cp->in_pkts);
113904 goto out;
113905 }
113906
113907diff --git a/net/netfilter/nf_conntrack_acct.c b/net/netfilter/nf_conntrack_acct.c
113908index a4b5e2a..13b1de3 100644
113909--- a/net/netfilter/nf_conntrack_acct.c
113910+++ b/net/netfilter/nf_conntrack_acct.c
113911@@ -62,7 +62,7 @@ static struct nf_ct_ext_type acct_extend __read_mostly = {
113912 #ifdef CONFIG_SYSCTL
113913 static int nf_conntrack_acct_init_sysctl(struct net *net)
113914 {
113915- struct ctl_table *table;
113916+ ctl_table_no_const *table;
113917
113918 table = kmemdup(acct_sysctl_table, sizeof(acct_sysctl_table),
113919 GFP_KERNEL);
113920diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c
113921index 13fad86..18c984c 100644
113922--- a/net/netfilter/nf_conntrack_core.c
113923+++ b/net/netfilter/nf_conntrack_core.c
113924@@ -1733,6 +1733,10 @@ void nf_conntrack_init_end(void)
113925 #define DYING_NULLS_VAL ((1<<30)+1)
113926 #define TEMPLATE_NULLS_VAL ((1<<30)+2)
113927
113928+#ifdef CONFIG_GRKERNSEC_HIDESYM
113929+static atomic_unchecked_t conntrack_cache_id = ATOMIC_INIT(0);
113930+#endif
113931+
113932 int nf_conntrack_init_net(struct net *net)
113933 {
113934 int ret = -ENOMEM;
113935@@ -1758,7 +1762,11 @@ int nf_conntrack_init_net(struct net *net)
113936 if (!net->ct.stat)
113937 goto err_pcpu_lists;
113938
113939+#ifdef CONFIG_GRKERNSEC_HIDESYM
113940+ net->ct.slabname = kasprintf(GFP_KERNEL, "nf_conntrack_%08x", atomic_inc_return_unchecked(&conntrack_cache_id));
113941+#else
113942 net->ct.slabname = kasprintf(GFP_KERNEL, "nf_conntrack_%p", net);
113943+#endif
113944 if (!net->ct.slabname)
113945 goto err_slabname;
113946
113947diff --git a/net/netfilter/nf_conntrack_ecache.c b/net/netfilter/nf_conntrack_ecache.c
113948index 4e78c57..ec8fb74 100644
113949--- a/net/netfilter/nf_conntrack_ecache.c
113950+++ b/net/netfilter/nf_conntrack_ecache.c
113951@@ -264,7 +264,7 @@ static struct nf_ct_ext_type event_extend __read_mostly = {
113952 #ifdef CONFIG_SYSCTL
113953 static int nf_conntrack_event_init_sysctl(struct net *net)
113954 {
113955- struct ctl_table *table;
113956+ ctl_table_no_const *table;
113957
113958 table = kmemdup(event_sysctl_table, sizeof(event_sysctl_table),
113959 GFP_KERNEL);
113960diff --git a/net/netfilter/nf_conntrack_helper.c b/net/netfilter/nf_conntrack_helper.c
113961index bd9d315..989947e 100644
113962--- a/net/netfilter/nf_conntrack_helper.c
113963+++ b/net/netfilter/nf_conntrack_helper.c
113964@@ -57,7 +57,7 @@ static struct ctl_table helper_sysctl_table[] = {
113965
113966 static int nf_conntrack_helper_init_sysctl(struct net *net)
113967 {
113968- struct ctl_table *table;
113969+ ctl_table_no_const *table;
113970
113971 table = kmemdup(helper_sysctl_table, sizeof(helper_sysctl_table),
113972 GFP_KERNEL);
113973diff --git a/net/netfilter/nf_conntrack_proto.c b/net/netfilter/nf_conntrack_proto.c
113974index b65d586..beec902 100644
113975--- a/net/netfilter/nf_conntrack_proto.c
113976+++ b/net/netfilter/nf_conntrack_proto.c
113977@@ -52,7 +52,7 @@ nf_ct_register_sysctl(struct net *net,
113978
113979 static void
113980 nf_ct_unregister_sysctl(struct ctl_table_header **header,
113981- struct ctl_table **table,
113982+ ctl_table_no_const **table,
113983 unsigned int users)
113984 {
113985 if (users > 0)
113986diff --git a/net/netfilter/nf_conntrack_standalone.c b/net/netfilter/nf_conntrack_standalone.c
113987index fc823fa..8311af3 100644
113988--- a/net/netfilter/nf_conntrack_standalone.c
113989+++ b/net/netfilter/nf_conntrack_standalone.c
113990@@ -468,7 +468,7 @@ static struct ctl_table nf_ct_netfilter_table[] = {
113991
113992 static int nf_conntrack_standalone_init_sysctl(struct net *net)
113993 {
113994- struct ctl_table *table;
113995+ ctl_table_no_const *table;
113996
113997 table = kmemdup(nf_ct_sysctl_table, sizeof(nf_ct_sysctl_table),
113998 GFP_KERNEL);
113999diff --git a/net/netfilter/nf_conntrack_timestamp.c b/net/netfilter/nf_conntrack_timestamp.c
114000index 7a394df..bd91a8a 100644
114001--- a/net/netfilter/nf_conntrack_timestamp.c
114002+++ b/net/netfilter/nf_conntrack_timestamp.c
114003@@ -42,7 +42,7 @@ static struct nf_ct_ext_type tstamp_extend __read_mostly = {
114004 #ifdef CONFIG_SYSCTL
114005 static int nf_conntrack_tstamp_init_sysctl(struct net *net)
114006 {
114007- struct ctl_table *table;
114008+ ctl_table_no_const *table;
114009
114010 table = kmemdup(tstamp_sysctl_table, sizeof(tstamp_sysctl_table),
114011 GFP_KERNEL);
114012diff --git a/net/netfilter/nf_log.c b/net/netfilter/nf_log.c
114013index 675d12c..b36e825 100644
114014--- a/net/netfilter/nf_log.c
114015+++ b/net/netfilter/nf_log.c
114016@@ -386,7 +386,7 @@ static const struct file_operations nflog_file_ops = {
114017
114018 #ifdef CONFIG_SYSCTL
114019 static char nf_log_sysctl_fnames[NFPROTO_NUMPROTO-NFPROTO_UNSPEC][3];
114020-static struct ctl_table nf_log_sysctl_table[NFPROTO_NUMPROTO+1];
114021+static ctl_table_no_const nf_log_sysctl_table[NFPROTO_NUMPROTO+1] __read_only;
114022
114023 static int nf_log_proc_dostring(struct ctl_table *table, int write,
114024 void __user *buffer, size_t *lenp, loff_t *ppos)
114025@@ -417,13 +417,15 @@ static int nf_log_proc_dostring(struct ctl_table *table, int write,
114026 rcu_assign_pointer(net->nf.nf_loggers[tindex], logger);
114027 mutex_unlock(&nf_log_mutex);
114028 } else {
114029+ ctl_table_no_const nf_log_table = *table;
114030+
114031 mutex_lock(&nf_log_mutex);
114032 logger = nft_log_dereference(net->nf.nf_loggers[tindex]);
114033 if (!logger)
114034- table->data = "NONE";
114035+ nf_log_table.data = "NONE";
114036 else
114037- table->data = logger->name;
114038- r = proc_dostring(table, write, buffer, lenp, ppos);
114039+ nf_log_table.data = logger->name;
114040+ r = proc_dostring(&nf_log_table, write, buffer, lenp, ppos);
114041 mutex_unlock(&nf_log_mutex);
114042 }
114043
114044diff --git a/net/netfilter/nf_sockopt.c b/net/netfilter/nf_sockopt.c
114045index c68c1e5..8b5d670 100644
114046--- a/net/netfilter/nf_sockopt.c
114047+++ b/net/netfilter/nf_sockopt.c
114048@@ -43,7 +43,7 @@ int nf_register_sockopt(struct nf_sockopt_ops *reg)
114049 }
114050 }
114051
114052- list_add(&reg->list, &nf_sockopts);
114053+ pax_list_add((struct list_head *)&reg->list, &nf_sockopts);
114054 out:
114055 mutex_unlock(&nf_sockopt_mutex);
114056 return ret;
114057@@ -53,7 +53,7 @@ EXPORT_SYMBOL(nf_register_sockopt);
114058 void nf_unregister_sockopt(struct nf_sockopt_ops *reg)
114059 {
114060 mutex_lock(&nf_sockopt_mutex);
114061- list_del(&reg->list);
114062+ pax_list_del((struct list_head *)&reg->list);
114063 mutex_unlock(&nf_sockopt_mutex);
114064 }
114065 EXPORT_SYMBOL(nf_unregister_sockopt);
114066diff --git a/net/netfilter/nfnetlink_log.c b/net/netfilter/nfnetlink_log.c
114067index 11d85b3..7fcc420 100644
114068--- a/net/netfilter/nfnetlink_log.c
114069+++ b/net/netfilter/nfnetlink_log.c
114070@@ -83,7 +83,7 @@ static int nfnl_log_net_id __read_mostly;
114071 struct nfnl_log_net {
114072 spinlock_t instances_lock;
114073 struct hlist_head instance_table[INSTANCE_BUCKETS];
114074- atomic_t global_seq;
114075+ atomic_unchecked_t global_seq;
114076 };
114077
114078 static struct nfnl_log_net *nfnl_log_pernet(struct net *net)
114079@@ -563,7 +563,7 @@ __build_packet_message(struct nfnl_log_net *log,
114080 /* global sequence number */
114081 if ((inst->flags & NFULNL_CFG_F_SEQ_GLOBAL) &&
114082 nla_put_be32(inst->skb, NFULA_SEQ_GLOBAL,
114083- htonl(atomic_inc_return(&log->global_seq))))
114084+ htonl(atomic_inc_return_unchecked(&log->global_seq))))
114085 goto nla_put_failure;
114086
114087 if (data_len) {
114088diff --git a/net/netfilter/nft_compat.c b/net/netfilter/nft_compat.c
114089index 65f3e2b..2e9d6a0 100644
114090--- a/net/netfilter/nft_compat.c
114091+++ b/net/netfilter/nft_compat.c
114092@@ -317,14 +317,7 @@ static void nft_match_eval(const struct nft_expr *expr,
114093 return;
114094 }
114095
114096- switch(ret) {
114097- case true:
114098- data[NFT_REG_VERDICT].verdict = NFT_CONTINUE;
114099- break;
114100- case false:
114101- data[NFT_REG_VERDICT].verdict = NFT_BREAK;
114102- break;
114103- }
114104+ data[NFT_REG_VERDICT].verdict = ret ? NFT_CONTINUE : NFT_BREAK;
114105 }
114106
114107 static const struct nla_policy nft_match_policy[NFTA_MATCH_MAX + 1] = {
114108diff --git a/net/netfilter/xt_gradm.c b/net/netfilter/xt_gradm.c
114109new file mode 100644
114110index 0000000..c566332
114111--- /dev/null
114112+++ b/net/netfilter/xt_gradm.c
114113@@ -0,0 +1,51 @@
114114+/*
114115+ * gradm match for netfilter
114116